From b85a05fcd2b9438caf007763b72dca24b21ec61c Mon Sep 17 00:00:00 2001
From: Stille <stille@ioiox.com>
Date: Thu, 10 Nov 2022 15:53:48 +0800
Subject: [PATCH] update v0.9.1-beta1 for anylink

---
 anylink/.github/workflows/codeql-analysis.yml |   71 -
 anylink/.github/workflows/go.yml              |   46 -
 anylink/Dockerfile                            |    9 +-
 anylink/README.md                             |    1 +
 anylink/build.sh                              |    2 +-
 anylink/build_docker.sh                       |    2 +-
 anylink/doc/README.md                         |   27 +-
 anylink/dtls-2.0.9/.editorconfig              |   21 -
 .../dtls-2.0.9/.github/assert-contributors.sh |   61 -
 .../dtls-2.0.9/.github/hooks/commit-msg.sh    |   11 -
 .../dtls-2.0.9/.github/hooks/pre-commit.sh    |   12 -
 anylink/dtls-2.0.9/.github/hooks/pre-push.sh  |   13 -
 anylink/dtls-2.0.9/.github/install-hooks.sh   |   16 -
 .../dtls-2.0.9/.github/lint-commit-message.sh |   64 -
 .../lint-disallowed-functions-in-library.sh   |   48 -
 anylink/dtls-2.0.9/.github/lint-filename.sh   |   24 -
 anylink/dtls-2.0.9/.github/workflows/e2e.yaml |   20 -
 .../dtls-2.0.9/.github/workflows/lint.yaml    |   43 -
 .../workflows/renovate-go-mod-fix.yaml        |   33 -
 .../dtls-2.0.9/.github/workflows/test.yaml    |  139 --
 .../.github/workflows/tidy-check.yaml         |   37 -
 anylink/dtls-2.0.9/.gitignore                 |   24 -
 anylink/dtls-2.0.9/.golangci.yml              |   89 -
 anylink/dtls-2.0.9/LICENSE                    |   21 -
 anylink/dtls-2.0.9/Makefile                   |    6 -
 anylink/dtls-2.0.9/README.md                  |  156 --
 anylink/dtls-2.0.9/bench_test.go              |  118 -
 anylink/dtls-2.0.9/certificate.go             |   67 -
 anylink/dtls-2.0.9/certificate_test.go        |   79 -
 anylink/dtls-2.0.9/cipher_suite.go            |  213 --
 anylink/dtls-2.0.9/cipher_suite_go114.go      |   40 -
 anylink/dtls-2.0.9/cipher_suite_go114_test.go |   51 -
 anylink/dtls-2.0.9/cipher_suite_test.go       |  108 -
 anylink/dtls-2.0.9/codecov.yml                |   20 -
 anylink/dtls-2.0.9/compression_method.go      |    9 -
 anylink/dtls-2.0.9/config.go                  |  197 --
 anylink/dtls-2.0.9/config_test.go             |  119 -
 anylink/dtls-2.0.9/conn.go                    |  979 --------
 anylink/dtls-2.0.9/conn_go_test.go            |  169 --
 anylink/dtls-2.0.9/conn_test.go               | 2026 -----------------
 anylink/dtls-2.0.9/crypto.go                  |  221 --
 anylink/dtls-2.0.9/crypto_test.go             |   73 -
 anylink/dtls-2.0.9/dtls.go                    |    2 -
 anylink/dtls-2.0.9/e2e/Dockerfile             |   11 -
 anylink/dtls-2.0.9/e2e/e2e.go                 |    2 -
 anylink/dtls-2.0.9/e2e/e2e_lossy_test.go      |  207 --
 anylink/dtls-2.0.9/e2e/e2e_openssl_test.go    |  250 --
 .../dtls-2.0.9/e2e/e2e_openssl_v113_test.go   |   17 -
 anylink/dtls-2.0.9/e2e/e2e_test.go            |  329 ---
 anylink/dtls-2.0.9/e2e/e2e_v113_test.go       |   62 -
 anylink/dtls-2.0.9/errors.go                  |  141 --
 anylink/dtls-2.0.9/errors_errno.go            |   25 -
 anylink/dtls-2.0.9/errors_errno_test.go       |   41 -
 anylink/dtls-2.0.9/errors_noerrno.go          |   14 -
 anylink/dtls-2.0.9/errors_test.go             |   85 -
 .../examples/certificates/README.md           |   26 -
 .../examples/certificates/client.pem          |    5 -
 .../examples/certificates/client.pub.pem      |    9 -
 .../examples/certificates/server.pem          |    5 -
 .../examples/certificates/server.pub.pem      |    9 -
 anylink/dtls-2.0.9/examples/dial/psk/main.go  |   45 -
 .../dtls-2.0.9/examples/dial/selfsign/main.go |   47 -
 .../dtls-2.0.9/examples/dial/verify/main.go   |   54 -
 .../dtls-2.0.9/examples/listen/psk/main.go    |   72 -
 .../examples/listen/selfsign/main.go          |   73 -
 .../dtls-2.0.9/examples/listen/verify/main.go |   80 -
 anylink/dtls-2.0.9/examples/util/hub.go       |   80 -
 anylink/dtls-2.0.9/examples/util/util.go      |  154 --
 anylink/dtls-2.0.9/flight.go                  |   75 -
 anylink/dtls-2.0.9/flight0handler.go          |  102 -
 anylink/dtls-2.0.9/flight1handler.go          |  112 -
 anylink/dtls-2.0.9/flight2handler.go          |   78 -
 anylink/dtls-2.0.9/flight3handler.go          |  194 --
 anylink/dtls-2.0.9/flight4handler.go          |  352 ---
 anylink/dtls-2.0.9/flight5handler.go          |  323 ---
 anylink/dtls-2.0.9/flight6handler.go          |   82 -
 anylink/dtls-2.0.9/flighthandler.go           |   57 -
 anylink/dtls-2.0.9/fragment_buffer.go         |  111 -
 anylink/dtls-2.0.9/fragment_buffer_test.go    |  101 -
 anylink/dtls-2.0.9/fuzz.go                    |   38 -
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diff --git a/anylink/.github/workflows/codeql-analysis.yml b/anylink/.github/workflows/codeql-analysis.yml
deleted file mode 100644
index 9e2cc2e..0000000
--- a/anylink/.github/workflows/codeql-analysis.yml
+++ /dev/null
@@ -1,71 +0,0 @@
-# For most projects, this workflow file will not need changing; you simply need
-# to commit it to your repository.
-#
-# You may wish to alter this file to override the set of languages analyzed,
-# or to provide custom queries or build logic.
-#
-# ******** NOTE ********
-# We have attempted to detect the languages in your repository. Please check
-# the `language` matrix defined below to confirm you have the correct set of
-# supported CodeQL languages.
-#
-name: "CodeQL"
-
-on:
-  push:
-    branches: [ dev ]
-  pull_request:
-    # The branches below must be a subset of the branches above
-    branches: [ dev ]
-  schedule:
-    - cron: '32 12 * * 5'
-
-jobs:
-  analyze:
-    name: Analyze
-    runs-on: ubuntu-latest
-    permissions:
-      actions: read
-      contents: read
-      security-events: write
-
-    strategy:
-      fail-fast: false
-      matrix:
-        language: [ 'go', 'javascript' ]
-        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
-        # Learn more:
-        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
-
-    steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
-
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      with:
-        languages: ${{ matrix.language }}
-        # If you wish to specify custom queries, you can do so here or in a config file.
-        # By default, queries listed here will override any specified in a config file.
-        # Prefix the list here with "+" to use these queries and those in the config file.
-        # queries: ./path/to/local/query, your-org/your-repo/queries@main
-
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
-
-    # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 https://git.io/JvXDl
-
-    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
-    #    and modify them (or add more) to build your code if your project
-    #    uses a compiled language
-
-    #- run: |
-    #   make bootstrap
-    #   make release
-
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
diff --git a/anylink/.github/workflows/go.yml b/anylink/.github/workflows/go.yml
deleted file mode 100644
index cb040e7..0000000
--- a/anylink/.github/workflows/go.yml
+++ /dev/null
@@ -1,46 +0,0 @@
-name: Go
-
-on:
-  push:
-    branches: [ "main", "dev" ]
-  pull_request:
-    branches: [ "main", "dev" ]
-
-jobs:
-
-  build:
-    name: Build
-    runs-on: ubuntu-latest
-    steps:
-
-      - name: Set up Go 1.x
-        uses: actions/setup-go@v2
-        with:
-          go-version: 1.16
-        id: go
-
-      - name: Check out code into the Go module directory
-        uses: actions/checkout@v2
-
-      - name: Get dependencies
-        run: |
-          cd server
-          go get -v -t -d ./...
-
-      - name: Build
-        run: |
-          cd server
-          mkdir ui
-          touch ui/index.html
-          go build -v -o anylink -ldflags "-X main.CommitId=`git rev-parse HEAD`"
-          ./anylink tool -v
-
-      - name: Test coverage
-        run: |
-          cd server
-          go test -race -coverprofile=coverage.txt -covermode=atomic -v ./...
-
-      - name: Upload coverage to Codecov
-        run: |
-          cd server
-          bash <(curl -s https://codecov.io/bash)
diff --git a/anylink/Dockerfile b/anylink/Dockerfile
index 99fa906..34cfe13 100644
--- a/anylink/Dockerfile
+++ b/anylink/Dockerfile
@@ -1,6 +1,6 @@
 # web
-FROM node:lts-alpine as builder_node
-ENV VERSION 0.8.1
+FROM node:16.17.1-alpine3.15 as builder_node
+ENV VERSION 0.9.1
 WORKDIR /web
 COPY ./web /web
 RUN yarn install \
@@ -8,7 +8,7 @@ RUN yarn install \
     && ls /web/ui
 
 # server
-FROM golang:1.17-alpine as builder_golang
+FROM golang:1.18-alpine as builder_golang
 #TODO 本地打包时使用镜像
 ENV GOPROXY=https://goproxy.io
 ENV GOOS=linux
@@ -46,5 +46,4 @@ RUN apk add --no-cache bash iptables \
 EXPOSE 443 8800
 
 #CMD ["/app/anylink"]
-ENTRYPOINT ["/app/docker_entrypoint.sh"]
-
+ENTRYPOINT ["/app/docker_entrypoint.sh"]
\ No newline at end of file
diff --git a/anylink/README.md b/anylink/README.md
index 3212e83..2f00b3f 100644
--- a/anylink/README.md
+++ b/anylink/README.md
@@ -8,6 +8,7 @@ Docker [stilleshan/anylink](https://hub.docker.com/r/stilleshan/anylink)
 基于 [bjdgyc/anylink](https://github.com/bjdgyc/anylink) 项目的 docker 镜像.
 
 ## 更新
+- **2022-11-10** 更新`0.9.1-beta1`版 docker 镜像.
 - **2022-07-04** 更新`0.8.1`版 docker 镜像.
 - **2022-04-07** 更新`0.7.4`版 docker 镜像.
 - **2022-02-16** 更新`0.7.3`版 docker 镜像.
diff --git a/anylink/build.sh b/anylink/build.sh
index 76acaf5..59c1456 100644
--- a/anylink/build.sh
+++ b/anylink/build.sh
@@ -1,4 +1,4 @@
-#!/bin/env bash
+#!/bin/bash
 
 set -x
 function RETVAL() {
diff --git a/anylink/build_docker.sh b/anylink/build_docker.sh
index 80d38ac..fad70ff 100644
--- a/anylink/build_docker.sh
+++ b/anylink/build_docker.sh
@@ -1,4 +1,4 @@
-#!/bin/env bash
+#!/bin/bash
 
 ver=`cat server/base/app_ver.go | grep APP_VER | awk '{print $3}' | sed 's/"//g'`
 echo $ver
diff --git a/anylink/doc/README.md b/anylink/doc/README.md
index 6366342..66c8c19 100644
--- a/anylink/doc/README.md
+++ b/anylink/doc/README.md
@@ -10,17 +10,22 @@
 
 > 感谢以下同学的打赏，AnyLink 有你更美好！
 
-| 昵称 | 主页                         |
-| -- | ---------------------------- |
-| 代码oo8 |                           |
-| 甘磊 | https://github.com/ganlei333 |
-| Oo@ | https://github.com/chooop    |
-| 虚极静笃 |                           |
-| 请喝可乐 |                           |
-| 加油加油 |                           |
-| 李建 |                              |
-| lanbin |                            |
-| 乐在东途 |                           |
+| 昵称           | 主页                         |
+| -------------- | ---------------------------- |
+| 代码 oo8       |                              |
+| 甘磊           | https://github.com/ganlei333 |
+| Oo@            | https://github.com/chooop    |
+| 虚极静笃       |                              |
+| 请喝可乐       |                              |
+| 加油加油       |                              |
+| 李建           |                              |
+| lanbin         |                              |
+| 乐在东途       |                              |
+| 孤鸿           |                              |
+| 刘国华         |                              |
+| 改名好无聊     |                              |
+| 全能互联网专家 |                              |
+
 
 
 
diff --git a/anylink/dtls-2.0.9/.editorconfig b/anylink/dtls-2.0.9/.editorconfig
deleted file mode 100644
index d2b3206..0000000
--- a/anylink/dtls-2.0.9/.editorconfig
+++ /dev/null
@@ -1,21 +0,0 @@
-# http://editorconfig.org/
-
-root = true
-
-[*]
-charset = utf-8
-insert_final_newline = true
-trim_trailing_whitespace = true
-end_of_line = lf
-
-[*.go]
-indent_style = tab
-indent_size = 4
-
-[{*.yml,*.yaml}]
-indent_style = space
-indent_size = 2
-
-# Makefiles always use tabs for indentation
-[Makefile]
-indent_style = tab
diff --git a/anylink/dtls-2.0.9/.github/assert-contributors.sh b/anylink/dtls-2.0.9/.github/assert-contributors.sh
deleted file mode 100644
index 12e6afe..0000000
--- a/anylink/dtls-2.0.9/.github/assert-contributors.sh
+++ /dev/null
@@ -1,61 +0,0 @@
-#!/usr/bin/env bash
-
-#
-# DO NOT EDIT THIS FILE
-#
-# It is automatically copied from https://github.com/pion/.goassets repository.
-#
-# If you want to update the shared CI config, send a PR to
-# https://github.com/pion/.goassets instead of this repository.
-#
-
-set -e
-
-SCRIPT_PATH=$( cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P )
-
-if [ -f ${SCRIPT_PATH}/.ci.conf ]
-then
-  . ${SCRIPT_PATH}/.ci.conf
-fi
-
-#
-# DO NOT EDIT THIS
-#
-EXCLUDED_CONTRIBUTORS+=('John R. Bradley' 'renovate[bot]' 'Renovate Bot' 'Pion Bot')
-# If you want to exclude a name from all repositories, send a PR to
-# https://github.com/pion/.goassets instead of this repository.
-# If you want to exclude a name only from this repository,
-# add EXCLUDED_CONTRIBUTORS=('name') to .github/.ci.conf
-
-MISSING_CONTRIBUTORS=()
-
-shouldBeIncluded () {
-	for i in "${EXCLUDED_CONTRIBUTORS[@]}"
-	do
-		if [ "$i" == "$1" ] ; then
-			return 1
-		fi
-	done
-	return 0
-}
-
-
-IFS=$'\n' #Only split on newline
-for contributor in $(git log --format='%aN' | sort -u)
-do
-	if shouldBeIncluded $contributor; then
-		if ! grep -q "$contributor" "$SCRIPT_PATH/../README.md"; then
-			MISSING_CONTRIBUTORS+=("$contributor")
-		fi
-	fi
-done
-unset IFS
-
-if [ ${#MISSING_CONTRIBUTORS[@]} -ne 0 ]; then
-    echo "Please add the following contributors to the README"
-    for i in "${MISSING_CONTRIBUTORS[@]}"
-    do
-	    echo "$i"
-    done
-    exit 1
-fi
diff --git a/anylink/dtls-2.0.9/.github/hooks/commit-msg.sh b/anylink/dtls-2.0.9/.github/hooks/commit-msg.sh
deleted file mode 100644
index 8213dc2..0000000
--- a/anylink/dtls-2.0.9/.github/hooks/commit-msg.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/usr/bin/env bash
-
-#
-# DO NOT EDIT THIS FILE DIRECTLY
-#
-# It is automatically copied from https://github.com/pion/.goassets repository.
-#
-
-set -e
-
-.github/lint-commit-message.sh $1
diff --git a/anylink/dtls-2.0.9/.github/hooks/pre-commit.sh b/anylink/dtls-2.0.9/.github/hooks/pre-commit.sh
deleted file mode 100644
index cc318d7..0000000
--- a/anylink/dtls-2.0.9/.github/hooks/pre-commit.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/sh
-
-#
-# DO NOT EDIT THIS FILE DIRECTLY
-#
-# It is automatically copied from https://github.com/pion/.goassets repository.
-#
-
-# Redirect output to stderr.
-exec 1>&2
-
-.github/lint-disallowed-functions-in-library.sh
diff --git a/anylink/dtls-2.0.9/.github/hooks/pre-push.sh b/anylink/dtls-2.0.9/.github/hooks/pre-push.sh
deleted file mode 100644
index 7cb2365..0000000
--- a/anylink/dtls-2.0.9/.github/hooks/pre-push.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/sh
-
-#
-# DO NOT EDIT THIS FILE DIRECTLY
-#
-# It is automatically copied from https://github.com/pion/.goassets repository.
-#
-
-set -e
-
-.github/assert-contributors.sh
-
-exit 0
diff --git a/anylink/dtls-2.0.9/.github/install-hooks.sh b/anylink/dtls-2.0.9/.github/install-hooks.sh
deleted file mode 100644
index 73d20a4..0000000
--- a/anylink/dtls-2.0.9/.github/install-hooks.sh
+++ /dev/null
@@ -1,16 +0,0 @@
-#!/bin/bash
-
-#
-# DO NOT EDIT THIS FILE
-#
-# It is automatically copied from https://github.com/pion/.goassets repository.
-#
-# If you want to update the shared CI config, send a PR to
-# https://github.com/pion/.goassets instead of this repository.
-#
-
-SCRIPT_PATH=$( cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P )
-
-cp "$SCRIPT_PATH/hooks/commit-msg.sh" "$SCRIPT_PATH/../.git/hooks/commit-msg"
-cp "$SCRIPT_PATH/hooks/pre-commit.sh" "$SCRIPT_PATH/../.git/hooks/pre-commit"
-cp "$SCRIPT_PATH/hooks/pre-push.sh" "$SCRIPT_PATH/../.git/hooks/pre-push"
diff --git a/anylink/dtls-2.0.9/.github/lint-commit-message.sh b/anylink/dtls-2.0.9/.github/lint-commit-message.sh
deleted file mode 100644
index 010a332..0000000
--- a/anylink/dtls-2.0.9/.github/lint-commit-message.sh
+++ /dev/null
@@ -1,64 +0,0 @@
-#!/usr/bin/env bash
-
-#
-# DO NOT EDIT THIS FILE
-#
-# It is automatically copied from https://github.com/pion/.goassets repository.
-#
-# If you want to update the shared CI config, send a PR to
-# https://github.com/pion/.goassets instead of this repository.
-#
-
-set -e
-
-display_commit_message_error() {
-cat << EndOfMessage
-$1
-
--------------------------------------------------
-The preceding commit message is invalid
-it failed '$2' of the following checks
-
-* Separate subject from body with a blank line
-* Limit the subject line to 50 characters
-* Capitalize the subject line
-* Do not end the subject line with a period
-* Wrap the body at 72 characters
-EndOfMessage
-
-     exit 1
-}
-
-lint_commit_message() {
-    if [[ "$(echo "$1" | awk 'NR == 2 {print $1;}' | wc -c)" -ne 1 ]]; then
-        display_commit_message_error "$1" 'Separate subject from body with a blank line'
-    fi
-
-    if [[ "$(echo "$1" | head -n1 | awk '{print length}')" -gt 50 ]]; then
-        display_commit_message_error "$1" 'Limit the subject line to 50 characters'
-    fi
-
-    if [[ ! $1 =~ ^[A-Z] ]]; then
-        display_commit_message_error "$1" 'Capitalize the subject line'
-    fi
-
-    if [[ "$(echo "$1" | awk 'NR == 1 {print substr($0,length($0),1)}')" == "." ]]; then
-        display_commit_message_error "$1" 'Do not end the subject line with a period'
-    fi
-
-    if [[ "$(echo "$1" | awk '{print length}' | sort -nr | head -1)" -gt 72 ]]; then
-        display_commit_message_error "$1" 'Wrap the body at 72 characters'
-    fi
-}
-
-if [ "$#" -eq 1 ]; then
-   if [ ! -f "$1" ]; then
-       echo "$0 was passed one argument, but was not a valid file"
-       exit 1
-   fi
-   lint_commit_message "$(sed -n '/# Please enter the commit message for your changes. Lines starting/q;p' "$1")"
-else
-    for commit in $(git rev-list --no-merges origin/master..); do
-      lint_commit_message "$(git log --format="%B" -n 1 $commit)"
-    done
-fi
diff --git a/anylink/dtls-2.0.9/.github/lint-disallowed-functions-in-library.sh b/anylink/dtls-2.0.9/.github/lint-disallowed-functions-in-library.sh
deleted file mode 100644
index 21e48da..0000000
--- a/anylink/dtls-2.0.9/.github/lint-disallowed-functions-in-library.sh
+++ /dev/null
@@ -1,48 +0,0 @@
-#!/usr/bin/env bash
-
-#
-# DO NOT EDIT THIS FILE
-#
-# It is automatically copied from https://github.com/pion/.goassets repository.
-#
-# If you want to update the shared CI config, send a PR to
-# https://github.com/pion/.goassets instead of this repository.
-#
-
-set -e
-
-# Disallow usages of functions that cause the program to exit in the library code
-SCRIPT_PATH=$( cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P )
-if [ -f ${SCRIPT_PATH}/.ci.conf ]
-then
-  . ${SCRIPT_PATH}/.ci.conf
-fi
-
-EXCLUDE_DIRECTORIES=${DISALLOWED_FUNCTIONS_EXCLUDED_DIRECTORIES:-"examples"}
-DISALLOWED_FUNCTIONS=('os.Exit(' 'panic(' 'Fatal(' 'Fatalf(' 'Fatalln(' 'fmt.Println(' 'fmt.Printf(' 'log.Print(' 'log.Println(' 'log.Printf(')
-
-files=$(
-  find "$SCRIPT_PATH/.." -name "*.go" \
-    | grep -v -e '^.*_test.go$' \
-    | while read file
-    do
-      excluded=false
-      for ex in $EXCLUDE_DIRECTORIES
-      do
-        if [[ $file == */$ex/* ]]
-        then
-          excluded=true
-          break
-        fi
-      done
-      $excluded || echo "$file"
-    done
-)
-
-for disallowedFunction in "${DISALLOWED_FUNCTIONS[@]}"
-do
-	if grep -e "$disallowedFunction" $files | grep -v -e 'nolint'; then
-		echo "$disallowedFunction may only be used in example code"
-		exit 1
-	fi
-done
diff --git a/anylink/dtls-2.0.9/.github/lint-filename.sh b/anylink/dtls-2.0.9/.github/lint-filename.sh
deleted file mode 100644
index 81b3f14..0000000
--- a/anylink/dtls-2.0.9/.github/lint-filename.sh
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/usr/bin/env bash
-
-#
-# DO NOT EDIT THIS FILE
-#
-# It is automatically copied from https://github.com/pion/.goassets repository.
-#
-# If you want to update the shared CI config, send a PR to
-# https://github.com/pion/.goassets instead of this repository.
-#
-
-set -e
-
-SCRIPT_PATH=$( cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P )
-GO_REGEX="^[a-zA-Z][a-zA-Z0-9_]*\.go$"
-
-find  "$SCRIPT_PATH/.." -name "*.go" | while read fullpath; do
-  filename=$(basename -- "$fullpath")
-
-  if ! [[ $filename =~ $GO_REGEX ]]; then
-      echo "$filename is not a valid filename for Go code, only alpha, numbers and underscores are supported"
-      exit 1
-  fi
-done
diff --git a/anylink/dtls-2.0.9/.github/workflows/e2e.yaml b/anylink/dtls-2.0.9/.github/workflows/e2e.yaml
deleted file mode 100644
index c6b4cf4..0000000
--- a/anylink/dtls-2.0.9/.github/workflows/e2e.yaml
+++ /dev/null
@@ -1,20 +0,0 @@
-name: E2E
-on:
-  pull_request:
-    branches:
-      - master
-  push:
-    branches:
-      - master
-
-jobs:
-  e2e-test:
-    name: Test
-    runs-on: ubuntu-latest
-    steps:
-      - name: checkout
-        uses: actions/checkout@v2
-      - name: test
-        run: |
-          docker build -t pion-dtls-e2e -f e2e/Dockerfile .
-          docker run -i --rm pion-dtls-e2e
diff --git a/anylink/dtls-2.0.9/.github/workflows/lint.yaml b/anylink/dtls-2.0.9/.github/workflows/lint.yaml
deleted file mode 100644
index 8824c34..0000000
--- a/anylink/dtls-2.0.9/.github/workflows/lint.yaml
+++ /dev/null
@@ -1,43 +0,0 @@
-name: Lint
-on:
-  pull_request:
-    types:
-      - opened
-      - edited
-      - synchronize
-jobs:
-  lint-commit-message:
-    name: Metadata
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-    steps:
-        - uses: actions/checkout@v2
-          with:
-            fetch-depth: 0
-
-        - name: Commit Message
-          run: .github/lint-commit-message.sh
-
-        - name: File names
-          run: .github/lint-filename.sh
-
-        - name: Contributors
-          run: .github/assert-contributors.sh
-
-        - name: Functions
-          run: .github/lint-disallowed-functions-in-library.sh
-
-  lint-go:
-    name: Go
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: golangci-lint
-        uses: golangci/golangci-lint-action@v2
-        with:
-          version: v1.31
-          args: $GOLANGCI_LINT_EXRA_ARGS
diff --git a/anylink/dtls-2.0.9/.github/workflows/renovate-go-mod-fix.yaml b/anylink/dtls-2.0.9/.github/workflows/renovate-go-mod-fix.yaml
deleted file mode 100644
index 46d2d04..0000000
--- a/anylink/dtls-2.0.9/.github/workflows/renovate-go-mod-fix.yaml
+++ /dev/null
@@ -1,33 +0,0 @@
-#
-# DO NOT EDIT THIS FILE
-#
-# It is automatically copied from https://github.com/pion/.goassets repository.
-# If this repository should have package specific CI config,
-# remove the repository name from .goassets/.github/workflows/assets-sync.yml.
-#
-# If you want to update the shared CI config, send a PR to
-# https://github.com/pion/.goassets instead of this repository.
-#
-
-name: go-mod-fix
-on:
-  push:
-    branches:
-      - renovate/*
-
-jobs:
-  go-mod-fix:
-    runs-on: ubuntu-latest
-    steps:
-      - name: checkout
-        uses: actions/checkout@v2
-        with:
-          fetch-depth: 2
-      - name: fix
-        uses: at-wat/go-sum-fix-action@v0
-        with:
-          git_user: Pion Bot
-          git_email: 59523206+pionbot@users.noreply.github.com
-          github_token: ${{ secrets.PIONBOT_PRIVATE_KEY }}
-          commit_style: squash
-          push: force
diff --git a/anylink/dtls-2.0.9/.github/workflows/test.yaml b/anylink/dtls-2.0.9/.github/workflows/test.yaml
deleted file mode 100644
index 5b7a43b..0000000
--- a/anylink/dtls-2.0.9/.github/workflows/test.yaml
+++ /dev/null
@@ -1,139 +0,0 @@
-name: Test
-on:
-  push:
-    branches:
-    - master
-  pull_request:
-    branches:
-    - master
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        go: ["1.15", "1.16"]
-      fail-fast: false
-    name: Go ${{ matrix.go }}
-    steps:
-      - uses: actions/checkout@v2
-
-      - uses: actions/cache@v2
-        with:
-          path: |
-            ~/go/pkg/mod
-            ~/go/bin
-            ~/.cache
-          key: ${{ runner.os }}-amd64-go-${{ hashFiles('**/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-amd64-go-
-
-      - name: Setup Go
-        uses: actions/setup-go@v2
-        with:
-          go-version: ${{ matrix.go }}
-
-      - name: Setup go-acc
-        run: |
-          go get github.com/ory/go-acc
-          git checkout go.mod go.sum
-
-      - name: Run test
-        run: |
-          go-acc -o cover.out ./... -- \
-          -bench=. \
-          -v -race
-
-      - uses: codecov/codecov-action@v1
-        with:
-          file: ./cover.out
-          name: codecov-umbrella
-          fail_ci_if_error: true
-          flags: go
-
-  test-i386:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        go: ["1.15", "1.16"]
-      fail-fast: false
-    name: Go i386 ${{ matrix.go }}
-    steps:
-      - uses: actions/checkout@v2
-
-      - uses: actions/cache@v2
-        with:
-          path: |
-            ~/go/pkg/mod
-            ~/.cache
-          key: ${{ runner.os }}-i386-go-${{ hashFiles('**/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-i386-go-
-
-      - name: Run test
-        run: |
-          mkdir -p $HOME/go/pkg/mod $HOME/.cache
-          docker run \
-          -u $(id -u):$(id -g) \
-          -e "GO111MODULE=on" \
-          -e "CGO_ENABLED=0" \
-          -v $GITHUB_WORKSPACE:/go/src/github.com/pion/$(basename $GITHUB_WORKSPACE) \
-          -v $HOME/go/pkg/mod:/go/pkg/mod \
-          -v $HOME/.cache:/.cache \
-          -w /go/src/github.com/pion/$(basename $GITHUB_WORKSPACE) \
-          i386/golang:${{matrix.go}}-alpine \
-          /usr/local/go/bin/go test \
-            ${TEST_EXTRA_ARGS:-} \
-            -v ./...
-
-  test-wasm:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-    name: WASM
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Use Node.js
-        uses: actions/setup-node@v2
-        with:
-          node-version: '12.x'
-
-      - uses: actions/cache@v2
-        with:
-          path: |
-            ~/go/pkg/mod
-            ~/.cache
-          key: ${{ runner.os }}-wasm-go-${{ hashFiles('**/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-wasm-go-
-
-      - name: Download Go
-        run: curl -sSfL https://dl.google.com/go/go${GO_VERSION}.linux-amd64.tar.gz | tar -C ~ -xzf -
-        env:
-          GO_VERSION: 1.16
-
-      - name: Set Go Root
-        run: echo "GOROOT=${HOME}/go" >> $GITHUB_ENV
-
-      - name: Set Go Path
-        run: echo "GOPATH=${HOME}/go" >> $GITHUB_ENV
-
-      - name: Set Go Path
-        run: echo "GO_JS_WASM_EXEC=${GOROOT}/misc/wasm/go_js_wasm_exec" >> $GITHUB_ENV
-
-      - name: Insall NPM modules
-        run: yarn install
-
-      - name: Run Tests
-        run: |
-          GOOS=js GOARCH=wasm $GOPATH/bin/go test \
-          -coverprofile=cover.out -covermode=atomic \
-          -exec="${GO_JS_WASM_EXEC}" \
-          -v ./...
-
-      - uses: codecov/codecov-action@v1
-        with:
-          file: ./cover.out
-          name: codecov-umbrella
-          fail_ci_if_error: true
-          flags: wasm
diff --git a/anylink/dtls-2.0.9/.github/workflows/tidy-check.yaml b/anylink/dtls-2.0.9/.github/workflows/tidy-check.yaml
deleted file mode 100644
index 03b5189..0000000
--- a/anylink/dtls-2.0.9/.github/workflows/tidy-check.yaml
+++ /dev/null
@@ -1,37 +0,0 @@
-#
-# DO NOT EDIT THIS FILE
-#
-# It is automatically copied from https://github.com/pion/.goassets repository.
-# If this repository should have package specific CI config,
-# remove the repository name from .goassets/.github/workflows/assets-sync.yml.
-#
-# If you want to update the shared CI config, send a PR to
-# https://github.com/pion/.goassets instead of this repository.
-#
-
-name: Go mod tidy
-on:
-  pull_request:
-    branches:
-      - master
-  push:
-    branches:
-      - master
-
-jobs:
-  Check:
-    runs-on: ubuntu-latest
-    steps:
-      - name: checkout
-        uses: actions/checkout@v2
-      - name: Setup Go
-        uses: actions/setup-go@v2
-      - name: check
-        run: |
-          go mod download
-          go mod tidy
-          if ! git diff --exit-code
-          then
-            echo "Not go mod tidied"
-            exit 1
-          fi
diff --git a/anylink/dtls-2.0.9/.gitignore b/anylink/dtls-2.0.9/.gitignore
deleted file mode 100644
index 83db74b..0000000
--- a/anylink/dtls-2.0.9/.gitignore
+++ /dev/null
@@ -1,24 +0,0 @@
-### JetBrains IDE ###
-#####################
-.idea/
-
-### Emacs Temporary Files ###
-#############################
-*~
-
-### Folders ###
-###############
-bin/
-vendor/
-node_modules/
-
-### Files ###
-#############
-*.ivf
-*.ogg
-tags
-cover.out
-*.sw[poe]
-*.wasm
-examples/sfu-ws/cert.pem
-examples/sfu-ws/key.pem
diff --git a/anylink/dtls-2.0.9/.golangci.yml b/anylink/dtls-2.0.9/.golangci.yml
deleted file mode 100644
index d6162c9..0000000
--- a/anylink/dtls-2.0.9/.golangci.yml
+++ /dev/null
@@ -1,89 +0,0 @@
-linters-settings:
-  govet:
-    check-shadowing: true
-  misspell:
-    locale: US
-  exhaustive:
-    default-signifies-exhaustive: true
-  gomodguard:
-    blocked:
-      modules:
-        - github.com/pkg/errors:
-            recommendations:
-            - errors
-
-linters:
-  enable:
-    - asciicheck       # Simple linter to check that your code does not contain non-ASCII identifiers
-    - bodyclose        # checks whether HTTP response body is closed successfully
-    - deadcode         # Finds unused code
-    - depguard         # Go linter that checks if package imports are in a list of acceptable packages
-    - dogsled          # Checks assignments with too many blank identifiers (e.g. x, _, _, _, := f())
-    - dupl             # Tool for code clone detection
-    - errcheck         # Errcheck is a program for checking for unchecked errors in go programs. These unchecked errors can be critical bugs in some cases
-    - exhaustive       # check exhaustiveness of enum switch statements
-    - exportloopref    # checks for pointers to enclosing loop variables
-    - gci              # Gci control golang package import order and make it always deterministic.
-    - gochecknoglobals # Checks that no globals are present in Go code
-    - gochecknoinits   # Checks that no init functions are present in Go code
-    - gocognit         # Computes and checks the cognitive complexity of functions
-    - goconst          # Finds repeated strings that could be replaced by a constant
-    - gocritic         # The most opinionated Go source code linter
-    - godox            # Tool for detection of FIXME, TODO and other comment keywords
-    - goerr113         # Golang linter to check the errors handling expressions
-    - gofmt            # Gofmt checks whether code was gofmt-ed. By default this tool runs with -s option to check for code simplification
-    - gofumpt          # Gofumpt checks whether code was gofumpt-ed.
-    - goheader         # Checks is file header matches to pattern
-    - goimports        # Goimports does everything that gofmt does. Additionally it checks unused imports
-    - golint           # Golint differs from gofmt. Gofmt reformats Go source code, whereas golint prints out style mistakes
-    - gomodguard       # Allow and block list linter for direct Go module dependencies. This is different from depguard where there are different block types for example version constraints and module recommendations.
-    - goprintffuncname # Checks that printf-like functions are named with `f` at the end
-    - gosec            # Inspects source code for security problems
-    - gosimple         # Linter for Go source code that specializes in simplifying a code
-    - govet            # Vet examines Go source code and reports suspicious constructs, such as Printf calls whose arguments do not align with the format string
-    - ineffassign      # Detects when assignments to existing variables are not used
-    - misspell         # Finds commonly misspelled English words in comments
-    - nakedret         # Finds naked returns in functions greater than a specified function length
-    - noctx            # noctx finds sending http request without context.Context
-    - scopelint        # Scopelint checks for unpinned variables in go programs
-    - staticcheck      # Staticcheck is a go vet on steroids, applying a ton of static analysis checks
-    - structcheck      # Finds unused struct fields
-    - stylecheck       # Stylecheck is a replacement for golint
-    - typecheck        # Like the front-end of a Go compiler, parses and type-checks Go code
-    - unconvert        # Remove unnecessary type conversions
-    - unparam          # Reports unused function parameters
-    - unused           # Checks Go code for unused constants, variables, functions and types
-    - varcheck         # Finds unused global variables and constants
-    - whitespace       # Tool for detection of leading and trailing whitespace
-  disable:
-    - funlen           # Tool for detection of long functions
-    - gocyclo          # Computes and checks the cyclomatic complexity of functions
-    - godot            # Check if comments end in a period
-    - gomnd            # An analyzer to detect magic numbers.
-    - lll              # Reports long lines
-    - maligned         # Tool to detect Go structs that would take less memory if their fields were sorted
-    - nestif           # Reports deeply nested if statements
-    - nlreturn         # nlreturn checks for a new line before return and branch statements to increase code clarity
-    - nolintlint       # Reports ill-formed or insufficient nolint directives
-    - prealloc         # Finds slice declarations that could potentially be preallocated
-    - rowserrcheck     # checks whether Err of rows is checked successfully
-    - sqlclosecheck    # Checks that sql.Rows and sql.Stmt are closed.
-    - testpackage      # linter that makes you use a separate _test package
-    - wsl              # Whitespace Linter - Forces you to use empty lines!
-
-issues:
-  exclude-use-default: false
-  exclude-rules:
-    # Allow complex tests, better to be self contained
-    - path: _test\.go
-      linters:
-        - gocognit
-
-    # Allow complex main function in examples
-    - path: examples
-      text: "of func `main` is high"
-      linters:
-        - gocognit
-
-run:
-  skip-dirs-use-default: false
diff --git a/anylink/dtls-2.0.9/LICENSE b/anylink/dtls-2.0.9/LICENSE
deleted file mode 100644
index ab60297..0000000
--- a/anylink/dtls-2.0.9/LICENSE
+++ /dev/null
@@ -1,21 +0,0 @@
-MIT License
-
-Copyright (c) 2018 
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
diff --git a/anylink/dtls-2.0.9/Makefile b/anylink/dtls-2.0.9/Makefile
deleted file mode 100644
index 1df38b2..0000000
--- a/anylink/dtls-2.0.9/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-fuzz-build-record-layer: fuzz-prepare
-	go-fuzz-build -tags gofuzz -func FuzzRecordLayer
-fuzz-run-record-layer:
-	go-fuzz -bin dtls-fuzz.zip -workdir fuzz
-fuzz-prepare:
-	@GO111MODULE=on go mod vendor
diff --git a/anylink/dtls-2.0.9/README.md b/anylink/dtls-2.0.9/README.md
deleted file mode 100644
index 9f7e4a0..0000000
--- a/anylink/dtls-2.0.9/README.md
+++ /dev/null
@@ -1,156 +0,0 @@
-<h1 align="center">
-  <br>
-  Pion DTLS
-  <br>
-</h1>
-<h4 align="center">A Go implementation of DTLS</h4>
-<p align="center">
-  <a href="https://pion.ly"><img src="https://img.shields.io/badge/pion-dtls-gray.svg?longCache=true&colorB=brightgreen" alt="Pion DTLS"></a>
-  <a href="https://sourcegraph.com/github.com/pion/dtls"><img src="https://sourcegraph.com/github.com/pion/dtls/-/badge.svg" alt="Sourcegraph Widget"></a>
-  <a href="https://pion.ly/slack"><img src="https://img.shields.io/badge/join-us%20on%20slack-gray.svg?longCache=true&logo=slack&colorB=brightgreen" alt="Slack Widget"></a>
-  <br>
-  <a href="https://travis-ci.org/pion/dtls"><img src="https://travis-ci.org/pion/dtls.svg?branch=master" alt="Build Status"></a>
-  <a href="https://pkg.go.dev/github.com/pion/dtls"><img src="https://godoc.org/github.com/pion/dtls?status.svg" alt="GoDoc"></a>
-  <a href="https://codecov.io/gh/pion/dtls"><img src="https://codecov.io/gh/pion/dtls/branch/master/graph/badge.svg" alt="Coverage Status"></a>
-  <a href="https://goreportcard.com/report/github.com/pion/dtls"><img src="https://goreportcard.com/badge/github.com/pion/dtls" alt="Go Report Card"></a>
-  <a href="https://www.codacy.com/app/Sean-Der/dtls"><img src="https://api.codacy.com/project/badge/Grade/18f4aec384894e6aac0b94effe51961d" alt="Codacy Badge"></a>
-  <a href="LICENSE"><img src="https://img.shields.io/badge/License-MIT-yellow.svg" alt="License: MIT"></a>
-</p>
-<br>
-
-Native [DTLS 1.2][rfc6347] implementation in the Go programming language.
-
-A long term goal is a professional security review, and maye inclusion in stdlib.
-
-[rfc6347]: https://tools.ietf.org/html/rfc6347
-
-### Goals/Progress
-This will only be targeting DTLS 1.2, and the most modern/common cipher suites.
-We would love contributes that fall under the 'Planned Features' and fixing any bugs!
-
-#### Current features
-* DTLS 1.2 Client/Server
-* Key Exchange via ECDHE(curve25519, nistp256, nistp384) and PSK
-* Packet loss and re-ordering is handled during handshaking
-* Key export ([RFC 5705][rfc5705])
-* Serialization and Resumption of sessions
-* Extended Master Secret extension ([RFC 7627][rfc7627])
-
-[rfc5705]: https://tools.ietf.org/html/rfc5705
-[rfc7627]: https://tools.ietf.org/html/rfc7627
-
-#### Supported ciphers
-
-##### ECDHE
-* TLS_ECDHE_ECDSA_WITH_AES_128_CCM ([RFC 6655][rfc6655])
-* TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 ([RFC 6655][rfc6655])
-* TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 ([RFC 5289][rfc5289])
-* TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ([RFC 5289][rfc5289])
-* TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA ([RFC 8422][rfc8422])
-* TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ([RFC 8422][rfc8422])
-
-##### PSK
-* TLS_PSK_WITH_AES_128_CCM ([RFC 6655][rfc6655])
-* TLS_PSK_WITH_AES_128_CCM_8 ([RFC 6655][rfc6655])
-* TLS_PSK_WITH_AES_128_GCM_SHA256 ([RFC 5487][rfc5487])
-* TLS_PSK_WITH_AES_128_CBC_SHA256 ([RFC 5487][rfc5487])
-
-[rfc5289]: https://tools.ietf.org/html/rfc5289
-[rfc8422]: https://tools.ietf.org/html/rfc8422
-[rfc6655]: https://tools.ietf.org/html/rfc6655
-[rfc5487]: https://tools.ietf.org/html/rfc5487
-
-#### Planned Features
-* Chacha20Poly1305
-
-#### Excluded Features
-* DTLS 1.0
-* Renegotiation
-* Compression
-
-### Using
-
-This library needs at least Go 1.13, and you should have [Go modules
-enabled](https://github.com/golang/go/wiki/Modules).
-
-#### Pion DTLS
-For a DTLS 1.2 Server that listens on 127.0.0.1:4444
-```sh
-go run examples/listen/selfsign/main.go
-```
-
-For a DTLS 1.2 Client that connects to 127.0.0.1:4444
-```sh
-go run examples/dial/selfsign/main.go
-```
-
-#### OpenSSL
-Pion DTLS can connect to itself and OpenSSL.
-```
-  // Generate a certificate
-  openssl ecparam -out key.pem -name prime256v1 -genkey
-  openssl req -new -sha256 -key key.pem -out server.csr
-  openssl x509 -req -sha256 -days 365 -in server.csr -signkey key.pem -out cert.pem
-
-  // Use with examples/dial/selfsign/main.go
-  openssl s_server -dtls1_2 -cert cert.pem -key key.pem -accept 4444
-
-  // Use with examples/listen/selfsign/main.go
-  openssl s_client -dtls1_2 -connect 127.0.0.1:4444 -debug -cert cert.pem -key key.pem
-```
-
-### Using with PSK
-Pion DTLS also comes with examples that do key exchange via PSK
-
-
-#### Pion DTLS
-```sh
-go run examples/listen/psk/main.go
-```
-
-```sh
-go run examples/dial/psk/main.go
-```
-
-#### OpenSSL
-```
-  // Use with examples/dial/psk/main.go
-  openssl s_server -dtls1_2 -accept 4444 -nocert -psk abc123 -cipher PSK-AES128-CCM8
-
-  // Use with examples/listen/psk/main.go
-  openssl s_client -dtls1_2 -connect 127.0.0.1:4444 -psk abc123 -cipher PSK-AES128-CCM8
-```
-
-### Contributing
-Check out the **[contributing wiki](https://github.com/pion/webrtc/wiki/Contributing)** to join the group of amazing people making this project possible:
-
-* [Sean DuBois](https://github.com/Sean-Der) - *Original Author*
-* [Michiel De Backker](https://github.com/backkem) - *Public API*
-* [Chris Hiszpanski](https://github.com/thinkski) - *Support Signature Algorithms Extension*
-* [Iñigo Garcia Olaizola](https://github.com/igolaizola) - *Serialization & resumption, cert verification, E2E*
-* [Daniele Sluijters](https://github.com/daenney) - *AES-CCM support*
-* [Jin Lei](https://github.com/jinleileiking) - *Logging*
-* [Hugo Arregui](https://github.com/hugoArregui)
-* [Lander Noterman](https://github.com/LanderN)
-* [Aleksandr Razumov](https://github.com/ernado) - *Fuzzing*
-* [Ryan Gordon](https://github.com/ryangordon)
-* [Stefan Tatschner](https://rumpelsepp.org/contact.html)
-* [Hayden James](https://github.com/hjames9)
-* [Jozef Kralik](https://github.com/jkralik)
-* [Robert Eperjesi](https://github.com/epes)
-* [Atsushi Watanabe](https://github.com/at-wat)
-* [Julien Salleyron](https://github.com/juliens) - *Server Name Indication*
-* [Jeroen de Bruijn](https://github.com/vidavidorra)
-* [bjdgyc](https://github.com/bjdgyc)
-* [Jeffrey Stoke (Jeff Ctor)](https://github.com/jeffreystoke) - *Fragmentbuffer Fix*
-* [Frank Olbricht](https://github.com/folbricht)
-* [ZHENK](https://github.com/scorpionknifes)
-* [Carson Hoffman](https://github.com/CarsonHoffman)
-* [Vadim Filimonov](https://github.com/fffilimonov)
-* [Jim Wert](https://github.com/bocajim)
-* [Alvaro Viebrantz](https://github.com/alvarowolfx)
-* [Kegan Dougal](https://github.com/Kegsay)
-* [Michael Zabka](https://github.com/misak113)
-
-### License
-MIT License - see [LICENSE](LICENSE) for full text
diff --git a/anylink/dtls-2.0.9/bench_test.go b/anylink/dtls-2.0.9/bench_test.go
deleted file mode 100644
index 517bc16..0000000
--- a/anylink/dtls-2.0.9/bench_test.go
+++ /dev/null
@@ -1,118 +0,0 @@
-package dtls
-
-import (
-	"context"
-	"crypto/tls"
-	"fmt"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2/internal/net/dpipe"
-	"github.com/pion/dtls/v2/pkg/crypto/selfsign"
-	"github.com/pion/logging"
-	"github.com/pion/transport/test"
-)
-
-func TestSimpleReadWrite(t *testing.T) {
-	report := test.CheckRoutines(t)
-	defer report()
-	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-	defer cancel()
-
-	ca, cb := dpipe.Pipe()
-	certificate, err := selfsign.GenerateSelfSigned()
-	if err != nil {
-		t.Fatal(err)
-	}
-	gotHello := make(chan struct{})
-
-	go func() {
-		server, sErr := testServer(ctx, cb, &Config{
-			Certificates:  []tls.Certificate{certificate},
-			LoggerFactory: logging.NewDefaultLoggerFactory(),
-		}, false)
-		if sErr != nil {
-			t.Error(sErr)
-			return
-		}
-		buf := make([]byte, 1024)
-		if _, sErr = server.Read(buf); sErr != nil {
-			t.Error(sErr)
-		}
-		gotHello <- struct{}{}
-		if sErr = server.Close(); sErr != nil {
-			t.Error(sErr)
-		}
-	}()
-
-	client, err := testClient(ctx, ca, &Config{
-		LoggerFactory:      logging.NewDefaultLoggerFactory(),
-		InsecureSkipVerify: true,
-	}, false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if _, err = client.Write([]byte("hello")); err != nil {
-		t.Error(err)
-	}
-	select {
-	case <-gotHello:
-		// OK
-	case <-time.After(time.Second * 5):
-		t.Error("timeout")
-	}
-
-	if err = client.Close(); err != nil {
-		t.Error(err)
-	}
-}
-
-func benchmarkConn(b *testing.B, n int64) {
-	b.Run(fmt.Sprintf("%d", n), func(b *testing.B) {
-		ctx := context.Background()
-
-		ca, cb := dpipe.Pipe()
-		certificate, err := selfsign.GenerateSelfSigned()
-		server := make(chan *Conn)
-		go func() {
-			s, sErr := testServer(ctx, cb, &Config{
-				Certificates: []tls.Certificate{certificate},
-			}, false)
-			if err != nil {
-				b.Error(sErr)
-				return
-			}
-			server <- s
-		}()
-		if err != nil {
-			b.Fatal(err)
-		}
-		hw := make([]byte, n)
-		b.ReportAllocs()
-		b.SetBytes(int64(len(hw)))
-		go func() {
-			client, cErr := testClient(ctx, ca, &Config{InsecureSkipVerify: true}, false)
-			if cErr != nil {
-				b.Error(err)
-			}
-			for {
-				if _, cErr = client.Write(hw); cErr != nil {
-					b.Error(err)
-				}
-			}
-		}()
-		s := <-server
-		buf := make([]byte, 2048)
-		for i := 0; i < b.N; i++ {
-			if _, err = s.Read(buf); err != nil {
-				b.Error(err)
-			}
-		}
-	})
-}
-
-func BenchmarkConnReadWrite(b *testing.B) {
-	for _, n := range []int64{16, 128, 512, 1024, 2048} {
-		benchmarkConn(b, n)
-	}
-}
diff --git a/anylink/dtls-2.0.9/certificate.go b/anylink/dtls-2.0.9/certificate.go
deleted file mode 100644
index c99e1c9..0000000
--- a/anylink/dtls-2.0.9/certificate.go
+++ /dev/null
@@ -1,67 +0,0 @@
-package dtls
-
-import (
-	"crypto/tls"
-	"crypto/x509"
-	"strings"
-)
-
-func (c *handshakeConfig) getCertificate(serverName string) (*tls.Certificate, error) {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-
-	if c.nameToCertificate == nil {
-		nameToCertificate := make(map[string]*tls.Certificate)
-		for i := range c.localCertificates {
-			cert := &c.localCertificates[i]
-			x509Cert := cert.Leaf
-			if x509Cert == nil {
-				var parseErr error
-				x509Cert, parseErr = x509.ParseCertificate(cert.Certificate[0])
-				if parseErr != nil {
-					continue
-				}
-			}
-			if len(x509Cert.Subject.CommonName) > 0 {
-				nameToCertificate[strings.ToLower(x509Cert.Subject.CommonName)] = cert
-			}
-			for _, san := range x509Cert.DNSNames {
-				nameToCertificate[strings.ToLower(san)] = cert
-			}
-		}
-		c.nameToCertificate = nameToCertificate
-	}
-
-	if len(c.localCertificates) == 0 {
-		return nil, errNoCertificates
-	}
-
-	if len(c.localCertificates) == 1 {
-		// There's only one choice, so no point doing any work.
-		return &c.localCertificates[0], nil
-	}
-
-	if len(serverName) == 0 {
-		return &c.localCertificates[0], nil
-	}
-
-	name := strings.TrimRight(strings.ToLower(serverName), ".")
-
-	if cert, ok := c.nameToCertificate[name]; ok {
-		return cert, nil
-	}
-
-	// try replacing labels in the name with wildcards until we get a
-	// match.
-	labels := strings.Split(name, ".")
-	for i := range labels {
-		labels[i] = "*"
-		candidate := strings.Join(labels, ".")
-		if cert, ok := c.nameToCertificate[candidate]; ok {
-			return cert, nil
-		}
-	}
-
-	// If nothing matches, return the first certificate.
-	return &c.localCertificates[0], nil
-}
diff --git a/anylink/dtls-2.0.9/certificate_test.go b/anylink/dtls-2.0.9/certificate_test.go
deleted file mode 100644
index 56cc04e..0000000
--- a/anylink/dtls-2.0.9/certificate_test.go
+++ /dev/null
@@ -1,79 +0,0 @@
-package dtls
-
-import (
-	"crypto/tls"
-	"reflect"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/crypto/selfsign"
-)
-
-func TestGetCertificate(t *testing.T) {
-	certificateWildcard, err := selfsign.GenerateSelfSignedWithDNS("*.test.test")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	certificateTest, err := selfsign.GenerateSelfSignedWithDNS("test.test", "www.test.test", "pop.test.test")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	certificateRandom, err := selfsign.GenerateSelfSigned()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	cfg := &handshakeConfig{
-		localCertificates: []tls.Certificate{
-			certificateRandom,
-			certificateTest,
-			certificateWildcard,
-		},
-	}
-
-	testCases := []struct {
-		desc                string
-		serverName          string
-		expectedCertificate tls.Certificate
-	}{
-		{
-			desc:                "Simple match in CN",
-			serverName:          "test.test",
-			expectedCertificate: certificateTest,
-		},
-		{
-			desc:                "Simple match in SANs",
-			serverName:          "www.test.test",
-			expectedCertificate: certificateTest,
-		},
-
-		{
-			desc:                "Wildcard match",
-			serverName:          "foo.test.test",
-			expectedCertificate: certificateWildcard,
-		},
-		{
-			desc:                "No match return first",
-			serverName:          "foo.bar",
-			expectedCertificate: certificateRandom,
-		},
-	}
-
-	for _, test := range testCases {
-		test := test
-
-		t.Run(test.desc, func(t *testing.T) {
-			t.Parallel()
-
-			cert, err := cfg.getCertificate(test.serverName)
-			if err != nil {
-				t.Fatal(err)
-			}
-
-			if !reflect.DeepEqual(cert.Leaf, test.expectedCertificate.Leaf) {
-				t.Fatalf("Certificate does not match: expected(%v) actual(%v)", test.expectedCertificate.Leaf, cert.Leaf)
-			}
-		})
-	}
-}
diff --git a/anylink/dtls-2.0.9/cipher_suite.go b/anylink/dtls-2.0.9/cipher_suite.go
deleted file mode 100644
index ed10609..0000000
--- a/anylink/dtls-2.0.9/cipher_suite.go
+++ /dev/null
@@ -1,213 +0,0 @@
-package dtls
-
-import (
-	"fmt"
-	"hash"
-
-	"github.com/pion/dtls/v2/internal/ciphersuite"
-	"github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-// CipherSuiteID is an ID for our supported CipherSuites
-type CipherSuiteID = ciphersuite.ID
-
-// Supported Cipher Suites
-const (
-	// AES-128-CCM
-	TLS_ECDHE_ECDSA_WITH_AES_128_CCM   CipherSuiteID = ciphersuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM   //nolint:golint,stylecheck
-	TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 CipherSuiteID = ciphersuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 //nolint:golint,stylecheck
-
-	// AES-128-GCM-SHA256
-	TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 CipherSuiteID = ciphersuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 //nolint:golint,stylecheck
-	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   CipherSuiteID = ciphersuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   //nolint:golint,stylecheck
-
-	// AES-256-CBC-SHA
-	TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA CipherSuiteID = ciphersuite.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA //nolint:golint,stylecheck
-	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA   CipherSuiteID = ciphersuite.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA   //nolint:golint,stylecheck
-
-	TLS_PSK_WITH_AES_128_CCM        CipherSuiteID = ciphersuite.TLS_PSK_WITH_AES_128_CCM        //nolint:golint,stylecheck
-	TLS_PSK_WITH_AES_128_CCM_8      CipherSuiteID = ciphersuite.TLS_PSK_WITH_AES_128_CCM_8      //nolint:golint,stylecheck
-	TLS_PSK_WITH_AES_128_GCM_SHA256 CipherSuiteID = ciphersuite.TLS_PSK_WITH_AES_128_GCM_SHA256 //nolint:golint,stylecheck
-	TLS_PSK_WITH_AES_128_CBC_SHA256 CipherSuiteID = ciphersuite.TLS_PSK_WITH_AES_128_CBC_SHA256 //nolint:golint,stylecheck
-)
-
-// CipherSuiteAuthenticationType controls what authentication method is using during the handshake for a CipherSuite
-type CipherSuiteAuthenticationType = ciphersuite.AuthenticationType
-
-// AuthenticationType Enums
-const (
-	CipherSuiteAuthenticationTypeCertificate  CipherSuiteAuthenticationType = ciphersuite.AuthenticationTypeCertificate
-	CipherSuiteAuthenticationTypePreSharedKey CipherSuiteAuthenticationType = ciphersuite.AuthenticationTypePreSharedKey
-	CipherSuiteAuthenticationTypeAnonymous    CipherSuiteAuthenticationType = ciphersuite.AuthenticationTypeAnonymous
-)
-
-var _ = allCipherSuites() // Necessary until this function isn't only used by Go 1.14
-
-// CipherSuite is an interface that all DTLS CipherSuites must satisfy
-type CipherSuite interface {
-	// String of CipherSuite, only used for logging
-	String() string
-
-	// ID of CipherSuite.
-	ID() CipherSuiteID
-
-	// What type of Certificate does this CipherSuite use
-	CertificateType() clientcertificate.Type
-
-	// What Hash function is used during verification
-	HashFunc() func() hash.Hash
-
-	// AuthenticationType controls what authentication method is using during the handshake
-	AuthenticationType() CipherSuiteAuthenticationType
-
-	// Called when keying material has been generated, should initialize the internal cipher
-	Init(masterSecret, clientRandom, serverRandom []byte, isClient bool) error
-	IsInitialized() bool
-
-	Encrypt(pkt *recordlayer.RecordLayer, raw []byte) ([]byte, error)
-	Decrypt(in []byte) ([]byte, error)
-}
-
-// CipherSuiteName provides the same functionality as tls.CipherSuiteName
-// that appeared first in Go 1.14.
-//
-// Our implementation differs slightly in that it takes in a CiperSuiteID,
-// like the rest of our library, instead of a uint16 like crypto/tls.
-func CipherSuiteName(id CipherSuiteID) string {
-	suite := cipherSuiteForID(id, nil)
-	if suite != nil {
-		return suite.String()
-	}
-	return fmt.Sprintf("0x%04X", uint16(id))
-}
-
-// Taken from https://www.iana.org/assignments/tls-parameters/tls-parameters.xml
-// A cipherSuite is a specific combination of key agreement, cipher and MAC
-// function.
-func cipherSuiteForID(id CipherSuiteID, customCiphers func() []CipherSuite) CipherSuite {
-	switch id { //nolint:exhaustive
-	case TLS_ECDHE_ECDSA_WITH_AES_128_CCM:
-		return ciphersuite.NewTLSEcdheEcdsaWithAes128Ccm()
-	case TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8:
-		return ciphersuite.NewTLSEcdheEcdsaWithAes128Ccm8()
-	case TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256:
-		return &ciphersuite.TLSEcdheEcdsaWithAes128GcmSha256{}
-	case TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256:
-		return &ciphersuite.TLSEcdheRsaWithAes128GcmSha256{}
-	case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA:
-		return &ciphersuite.TLSEcdheEcdsaWithAes256CbcSha{}
-	case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA:
-		return &ciphersuite.TLSEcdheRsaWithAes256CbcSha{}
-	case TLS_PSK_WITH_AES_128_CCM:
-		return ciphersuite.NewTLSPskWithAes128Ccm()
-	case TLS_PSK_WITH_AES_128_CCM_8:
-		return ciphersuite.NewTLSPskWithAes128Ccm8()
-	case TLS_PSK_WITH_AES_128_GCM_SHA256:
-		return &ciphersuite.TLSPskWithAes128GcmSha256{}
-	case TLS_PSK_WITH_AES_128_CBC_SHA256:
-		return &ciphersuite.TLSPskWithAes128CbcSha256{}
-	}
-
-	if customCiphers != nil {
-		for _, c := range customCiphers() {
-			if c.ID() == id {
-				return c
-			}
-		}
-	}
-
-	return nil
-}
-
-// CipherSuites we support in order of preference
-func defaultCipherSuites() []CipherSuite {
-	return []CipherSuite{
-		&ciphersuite.TLSEcdheEcdsaWithAes128GcmSha256{},
-		&ciphersuite.TLSEcdheRsaWithAes128GcmSha256{},
-		&ciphersuite.TLSEcdheEcdsaWithAes256CbcSha{},
-		&ciphersuite.TLSEcdheRsaWithAes256CbcSha{},
-	}
-}
-
-func allCipherSuites() []CipherSuite {
-	return []CipherSuite{
-		ciphersuite.NewTLSEcdheEcdsaWithAes128Ccm(),
-		ciphersuite.NewTLSEcdheEcdsaWithAes128Ccm8(),
-		&ciphersuite.TLSEcdheEcdsaWithAes128GcmSha256{},
-		&ciphersuite.TLSEcdheRsaWithAes128GcmSha256{},
-		&ciphersuite.TLSEcdheEcdsaWithAes256CbcSha{},
-		&ciphersuite.TLSEcdheRsaWithAes256CbcSha{},
-		ciphersuite.NewTLSPskWithAes128Ccm(),
-		ciphersuite.NewTLSPskWithAes128Ccm8(),
-		&ciphersuite.TLSPskWithAes128GcmSha256{},
-	}
-}
-
-func cipherSuiteIDs(cipherSuites []CipherSuite) []uint16 {
-	rtrn := []uint16{}
-	for _, c := range cipherSuites {
-		rtrn = append(rtrn, uint16(c.ID()))
-	}
-	return rtrn
-}
-
-func parseCipherSuites(userSelectedSuites []CipherSuiteID, customCipherSuites func() []CipherSuite, includeCertificateSuites, includePSKSuites bool) ([]CipherSuite, error) {
-	cipherSuitesForIDs := func(ids []CipherSuiteID) ([]CipherSuite, error) {
-		cipherSuites := []CipherSuite{}
-		for _, id := range ids {
-			c := cipherSuiteForID(id, nil)
-			if c == nil {
-				return nil, &invalidCipherSuite{id}
-			}
-			cipherSuites = append(cipherSuites, c)
-		}
-		return cipherSuites, nil
-	}
-
-	var (
-		cipherSuites []CipherSuite
-		err          error
-		i            int
-	)
-	if userSelectedSuites != nil {
-		cipherSuites, err = cipherSuitesForIDs(userSelectedSuites)
-		if err != nil {
-			return nil, err
-		}
-	} else {
-		cipherSuites = defaultCipherSuites()
-	}
-
-	// Put CustomCipherSuites before ID selected suites
-	if customCipherSuites != nil {
-		cipherSuites = append(customCipherSuites(), cipherSuites...)
-	}
-
-	var foundCertificateSuite, foundPSKSuite, foundAnonymousSuite bool
-	for _, c := range cipherSuites {
-		switch {
-		case includeCertificateSuites && c.AuthenticationType() == CipherSuiteAuthenticationTypeCertificate:
-			foundCertificateSuite = true
-		case includePSKSuites && c.AuthenticationType() == CipherSuiteAuthenticationTypePreSharedKey:
-			foundPSKSuite = true
-		case c.AuthenticationType() == CipherSuiteAuthenticationTypeAnonymous:
-			foundAnonymousSuite = true
-		default:
-			continue
-		}
-		cipherSuites[i] = c
-		i++
-	}
-
-	switch {
-	case includeCertificateSuites && !foundCertificateSuite && !foundAnonymousSuite:
-		return nil, errNoAvailableCertificateCipherSuite
-	case includePSKSuites && !foundPSKSuite:
-		return nil, errNoAvailablePSKCipherSuite
-	case i == 0:
-		return nil, errNoAvailableCipherSuites
-	}
-
-	return cipherSuites[:i], nil
-}
diff --git a/anylink/dtls-2.0.9/cipher_suite_go114.go b/anylink/dtls-2.0.9/cipher_suite_go114.go
deleted file mode 100644
index 7bba16e..0000000
--- a/anylink/dtls-2.0.9/cipher_suite_go114.go
+++ /dev/null
@@ -1,40 +0,0 @@
-// +build go1.14
-
-package dtls
-
-import (
-	"crypto/tls"
-)
-
-// VersionDTLS12 is the DTLS version in the same style as
-// VersionTLSXX from crypto/tls
-const VersionDTLS12 = 0xfefd
-
-// Convert from our cipherSuite interface to a tls.CipherSuite struct
-func toTLSCipherSuite(c CipherSuite) *tls.CipherSuite {
-	return &tls.CipherSuite{
-		ID:                uint16(c.ID()),
-		Name:              c.String(),
-		SupportedVersions: []uint16{VersionDTLS12},
-		Insecure:          false,
-	}
-}
-
-// CipherSuites returns a list of cipher suites currently implemented by this
-// package, excluding those with security issues, which are returned by
-// InsecureCipherSuites.
-func CipherSuites() []*tls.CipherSuite {
-	suites := allCipherSuites()
-	res := make([]*tls.CipherSuite, len(suites))
-	for i, c := range suites {
-		res[i] = toTLSCipherSuite(c)
-	}
-	return res
-}
-
-// InsecureCipherSuites returns a list of cipher suites currently implemented by
-// this package and which have security issues.
-func InsecureCipherSuites() []*tls.CipherSuite {
-	var res []*tls.CipherSuite
-	return res
-}
diff --git a/anylink/dtls-2.0.9/cipher_suite_go114_test.go b/anylink/dtls-2.0.9/cipher_suite_go114_test.go
deleted file mode 100644
index 57c64d4..0000000
--- a/anylink/dtls-2.0.9/cipher_suite_go114_test.go
+++ /dev/null
@@ -1,51 +0,0 @@
-// +build go1.14
-
-package dtls
-
-import (
-	"testing"
-)
-
-func TestInsecureCipherSuites(t *testing.T) {
-	r := InsecureCipherSuites()
-
-	if len(r) != 0 {
-		t.Fatalf("Expected no insecure ciphersuites, got %d", len(r))
-	}
-}
-
-func TestCipherSuites(t *testing.T) {
-	ours := allCipherSuites()
-	theirs := CipherSuites()
-
-	if len(ours) != len(theirs) {
-		t.Fatalf("Expected %d CipherSuites, got %d", len(ours), len(theirs))
-	}
-
-	for i, s := range ours {
-		i := i
-		s := s
-		t.Run(s.String(), func(t *testing.T) {
-			c := theirs[i]
-			if c.ID != uint16(s.ID()) {
-				t.Fatalf("Expected ID: 0x%04X, got 0x%04X", s.ID(), c.ID)
-			}
-
-			if c.Name != s.String() {
-				t.Fatalf("Expected Name: %s, got %s", s.String(), c.Name)
-			}
-
-			if len(c.SupportedVersions) != 1 {
-				t.Fatalf("Expected %d SupportedVersion, got %d", 1, len(c.SupportedVersions))
-			}
-
-			if c.SupportedVersions[0] != VersionDTLS12 {
-				t.Fatalf("Expected SupportedVersions 0x%04X, got 0x%04X", VersionDTLS12, c.SupportedVersions[0])
-			}
-
-			if c.Insecure {
-				t.Fatalf("Expected Insecure %t, got %t", false, c.Insecure)
-			}
-		})
-	}
-}
diff --git a/anylink/dtls-2.0.9/cipher_suite_test.go b/anylink/dtls-2.0.9/cipher_suite_test.go
deleted file mode 100644
index e0ed6d1..0000000
--- a/anylink/dtls-2.0.9/cipher_suite_test.go
+++ /dev/null
@@ -1,108 +0,0 @@
-package dtls
-
-import (
-	"context"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2/internal/ciphersuite"
-	"github.com/pion/dtls/v2/internal/net/dpipe"
-	"github.com/pion/transport/test"
-)
-
-func TestCipherSuiteName(t *testing.T) {
-	testCases := []struct {
-		suite    CipherSuiteID
-		expected string
-	}{
-		{TLS_ECDHE_ECDSA_WITH_AES_128_CCM, "TLS_ECDHE_ECDSA_WITH_AES_128_CCM"},
-		{CipherSuiteID(0x0000), "0x0000"},
-	}
-
-	for _, testCase := range testCases {
-		res := CipherSuiteName(testCase.suite)
-		if res != testCase.expected {
-			t.Fatalf("Expected: %s, got %s", testCase.expected, res)
-		}
-	}
-}
-
-func TestAllCipherSuites(t *testing.T) {
-	actual := len(allCipherSuites())
-	if actual == 0 {
-		t.Fatal()
-	}
-}
-
-// CustomCipher that is just used to assert Custom IDs work
-type testCustomCipherSuite struct {
-	ciphersuite.TLSEcdheEcdsaWithAes128GcmSha256
-	authenticationType CipherSuiteAuthenticationType
-}
-
-func (t *testCustomCipherSuite) ID() CipherSuiteID {
-	return 0xFFFF
-}
-
-func (t *testCustomCipherSuite) AuthenticationType() CipherSuiteAuthenticationType {
-	return t.authenticationType
-}
-
-// Assert that two connections that pass in a CipherSuite with a CustomID works
-func TestCustomCipherSuite(t *testing.T) {
-	type result struct {
-		c   *Conn
-		err error
-	}
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	runTest := func(cipherFactory func() []CipherSuite) {
-		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-		defer cancel()
-
-		ca, cb := dpipe.Pipe()
-		c := make(chan result)
-
-		go func() {
-			client, err := testClient(ctx, ca, &Config{
-				CipherSuites:       []CipherSuiteID{},
-				CustomCipherSuites: cipherFactory,
-			}, true)
-			c <- result{client, err}
-		}()
-
-		server, err := testServer(ctx, cb, &Config{
-			CipherSuites:       []CipherSuiteID{},
-			CustomCipherSuites: cipherFactory,
-		}, true)
-
-		clientResult := <-c
-
-		if err != nil {
-			t.Error(err)
-		} else {
-			_ = server.Close()
-		}
-
-		if clientResult.err != nil {
-			t.Error(clientResult.err)
-		} else {
-			_ = clientResult.c.Close()
-		}
-	}
-
-	t.Run("Custom ID", func(t *testing.T) {
-		runTest(func() []CipherSuite {
-			return []CipherSuite{&testCustomCipherSuite{authenticationType: CipherSuiteAuthenticationTypeCertificate}}
-		})
-	})
-
-	t.Run("Anonymous Cipher", func(t *testing.T) {
-		runTest(func() []CipherSuite {
-			return []CipherSuite{&testCustomCipherSuite{authenticationType: CipherSuiteAuthenticationTypeAnonymous}}
-		})
-	})
-}
diff --git a/anylink/dtls-2.0.9/codecov.yml b/anylink/dtls-2.0.9/codecov.yml
deleted file mode 100644
index 085200a..0000000
--- a/anylink/dtls-2.0.9/codecov.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-#
-# DO NOT EDIT THIS FILE
-#
-# It is automatically copied from https://github.com/pion/.goassets repository.
-#
-
-coverage:
-  status:
-    project:
-      default:
-        # Allow decreasing 2% of total coverage to avoid noise.
-        threshold: 2%
-    patch:
-      default:
-        target: 70%
-        only_pulls: true
-
-ignore:
-  - "examples/*"
-  - "examples/**/*"
diff --git a/anylink/dtls-2.0.9/compression_method.go b/anylink/dtls-2.0.9/compression_method.go
deleted file mode 100644
index 693eb7a..0000000
--- a/anylink/dtls-2.0.9/compression_method.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package dtls
-
-import "github.com/pion/dtls/v2/pkg/protocol"
-
-func defaultCompressionMethods() []*protocol.CompressionMethod {
-	return []*protocol.CompressionMethod{
-		{},
-	}
-}
diff --git a/anylink/dtls-2.0.9/config.go b/anylink/dtls-2.0.9/config.go
deleted file mode 100644
index 7c1c0b7..0000000
--- a/anylink/dtls-2.0.9/config.go
+++ /dev/null
@@ -1,197 +0,0 @@
-package dtls
-
-import (
-	"context"
-	"crypto/ecdsa"
-	"crypto/ed25519"
-	"crypto/rsa"
-	"crypto/tls"
-	"crypto/x509"
-	"io"
-	"time"
-
-	"github.com/pion/logging"
-)
-
-const keyLogLabelTLS12 = "CLIENT_RANDOM"
-
-// Config is used to configure a DTLS client or server.
-// After a Config is passed to a DTLS function it must not be modified.
-type Config struct {
-	// Certificates contains certificate chain to present to the other side of the connection.
-	// Server MUST set this if PSK is non-nil
-	// client SHOULD sets this so CertificateRequests can be handled if PSK is non-nil
-	Certificates []tls.Certificate
-
-	// CipherSuites is a list of supported cipher suites.
-	// If CipherSuites is nil, a default list is used
-	CipherSuites []CipherSuiteID
-
-	// CustomCipherSuites is a list of CipherSuites that can be
-	// provided by the user. This allow users to user Ciphers that are reserved
-	// for private usage.
-	CustomCipherSuites func() []CipherSuite
-
-	// SignatureSchemes contains the signature and hash schemes that the peer requests to verify.
-	SignatureSchemes []tls.SignatureScheme
-
-	// SRTPProtectionProfiles are the supported protection profiles
-	// Clients will send this via use_srtp and assert that the server properly responds
-	// Servers will assert that clients send one of these profiles and will respond as needed
-	SRTPProtectionProfiles []SRTPProtectionProfile
-
-	// ClientAuth determines the server's policy for
-	// TLS Client Authentication. The default is NoClientCert.
-	ClientAuth ClientAuthType
-
-	// RequireExtendedMasterSecret determines if the "Extended Master Secret" extension
-	// should be disabled, requested, or required (default requested).
-	ExtendedMasterSecret ExtendedMasterSecretType
-
-	// FlightInterval controls how often we send outbound handshake messages
-	// defaults to time.Second
-	FlightInterval time.Duration
-
-	// PSK sets the pre-shared key used by this DTLS connection
-	// If PSK is non-nil only PSK CipherSuites will be used
-	PSK             PSKCallback
-	PSKIdentityHint []byte
-
-	CiscoCompat PSKCallback // TODO add cisco anyconnect support
-
-	// InsecureSkipVerify controls whether a client verifies the
-	// server's certificate chain and host name.
-	// If InsecureSkipVerify is true, TLS accepts any certificate
-	// presented by the server and any host name in that certificate.
-	// In this mode, TLS is susceptible to man-in-the-middle attacks.
-	// This should be used only for testing.
-	InsecureSkipVerify bool
-
-	// InsecureHashes allows the use of hashing algorithms that are known
-	// to be vulnerable.
-	InsecureHashes bool
-
-	// VerifyPeerCertificate, if not nil, is called after normal
-	// certificate verification by either a client or server. It
-	// receives the certificate provided by the peer and also a flag
-	// that tells if normal verification has succeedded. If it returns a
-	// non-nil error, the handshake is aborted and that error results.
-	//
-	// If normal verification fails then the handshake will abort before
-	// considering this callback. If normal verification is disabled by
-	// setting InsecureSkipVerify, or (for a server) when ClientAuth is
-	// RequestClientCert or RequireAnyClientCert, then this callback will
-	// be considered but the verifiedChains will always be nil.
-	VerifyPeerCertificate func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error
-
-	// RootCAs defines the set of root certificate authorities
-	// that one peer uses when verifying the other peer's certificates.
-	// If RootCAs is nil, TLS uses the host's root CA set.
-	RootCAs *x509.CertPool
-
-	// ClientCAs defines the set of root certificate authorities
-	// that servers use if required to verify a client certificate
-	// by the policy in ClientAuth.
-	ClientCAs *x509.CertPool
-
-	// ServerName is used to verify the hostname on the returned
-	// certificates unless InsecureSkipVerify is given.
-	ServerName string
-
-	LoggerFactory logging.LoggerFactory
-
-	// ConnectContextMaker is a function to make a context used in Dial(),
-	// Client(), Server(), and Accept(). If nil, the default ConnectContextMaker
-	// is used. It can be implemented as following.
-	//
-	// 	func ConnectContextMaker() (context.Context, func()) {
-	// 		return context.WithTimeout(context.Background(), 30*time.Second)
-	// 	}
-	ConnectContextMaker func() (context.Context, func())
-
-	// MTU is the length at which handshake messages will be fragmented to
-	// fit within the maximum transmission unit (default is 1200 bytes)
-	MTU int
-
-	// ReplayProtectionWindow is the size of the replay attack protection window.
-	// Duplication of the sequence number is checked in this window size.
-	// Packet with sequence number older than this value compared to the latest
-	// accepted packet will be discarded. (default is 64)
-	ReplayProtectionWindow int
-
-	// KeyLogWriter optionally specifies a destination for TLS master secrets
-	// in NSS key log format that can be used to allow external programs
-	// such as Wireshark to decrypt TLS connections.
-	// See https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format.
-	// Use of KeyLogWriter compromises security and should only be
-	// used for debugging.
-	KeyLogWriter io.Writer
-}
-
-func defaultConnectContextMaker() (context.Context, func()) {
-	return context.WithTimeout(context.Background(), 30*time.Second)
-}
-
-func (c *Config) connectContextMaker() (context.Context, func()) {
-	if c.ConnectContextMaker == nil {
-		return defaultConnectContextMaker()
-	}
-	return c.ConnectContextMaker()
-}
-
-const defaultMTU = 1200 // bytes
-
-// PSKCallback is called once we have the remote's PSKIdentityHint.
-// If the remote provided none it will be nil
-type PSKCallback func([]byte) ([]byte, error)
-
-// ClientAuthType declares the policy the server will follow for
-// TLS Client Authentication.
-type ClientAuthType int
-
-// ClientAuthType enums
-const (
-	NoClientCert ClientAuthType = iota
-	RequestClientCert
-	RequireAnyClientCert
-	VerifyClientCertIfGiven
-	RequireAndVerifyClientCert
-)
-
-// ExtendedMasterSecretType declares the policy the client and server
-// will follow for the Extended Master Secret extension
-type ExtendedMasterSecretType int
-
-// ExtendedMasterSecretType enums
-const (
-	RequestExtendedMasterSecret ExtendedMasterSecretType = iota
-	RequireExtendedMasterSecret
-	DisableExtendedMasterSecret
-)
-
-func validateConfig(config *Config) error {
-	switch {
-	case config == nil:
-		return errNoConfigProvided
-	case config.PSKIdentityHint != nil && config.PSK == nil:
-		return errIdentityNoPSK
-	}
-
-	for _, cert := range config.Certificates {
-		if cert.Certificate == nil {
-			return errInvalidCertificate
-		}
-		if cert.PrivateKey != nil {
-			switch cert.PrivateKey.(type) {
-			case ed25519.PrivateKey:
-			case *ecdsa.PrivateKey:
-			case *rsa.PrivateKey:
-			default:
-				return errInvalidPrivateKey
-			}
-		}
-	}
-
-	_, err := parseCipherSuites(config.CipherSuites, config.CustomCipherSuites, config.PSK == nil || len(config.Certificates) > 0, config.PSK != nil)
-	return err
-}
diff --git a/anylink/dtls-2.0.9/config_test.go b/anylink/dtls-2.0.9/config_test.go
deleted file mode 100644
index a5a0772..0000000
--- a/anylink/dtls-2.0.9/config_test.go
+++ /dev/null
@@ -1,119 +0,0 @@
-package dtls
-
-import (
-	"crypto/dsa" //nolint
-	"crypto/rand"
-	"crypto/rsa"
-	"crypto/tls"
-	"errors"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/crypto/selfsign"
-)
-
-func TestValidateConfig(t *testing.T) {
-	// Empty config
-	if err := validateConfig(nil); !errors.Is(err, errNoConfigProvided) {
-		t.Fatalf("TestValidateConfig: Config validation error exp(%v) failed(%v)", errNoConfigProvided, err)
-	}
-
-	// PSK and Certificate, valid cipher suites
-	cert, err := selfsign.GenerateSelfSigned()
-	if err != nil {
-		t.Fatalf("TestValidateConfig: Config validation error(%v), self signed certificate not generated", err)
-		return
-	}
-	config := &Config{
-		CipherSuites: []CipherSuiteID{TLS_PSK_WITH_AES_128_CCM_8, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-		PSK: func(hint []byte) ([]byte, error) {
-			return nil, nil
-		},
-		Certificates: []tls.Certificate{cert},
-	}
-	if err = validateConfig(config); err != nil {
-		t.Fatalf("TestValidateConfig: Client error exp(%v) failed(%v)", nil, err)
-	}
-
-	// PSK and Certificate, no PSK cipher suite
-	config = &Config{
-		CipherSuites: []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-		PSK: func(hint []byte) ([]byte, error) {
-			return nil, nil
-		},
-		Certificates: []tls.Certificate{cert},
-	}
-	if err = validateConfig(config); !errors.Is(errNoAvailablePSKCipherSuite, err) {
-		t.Fatalf("TestValidateConfig: Client error exp(%v) failed(%v)", errNoAvailablePSKCipherSuite, err)
-	}
-
-	// PSK and Certificate, no non-PSK cipher suite
-	config = &Config{
-		CipherSuites: []CipherSuiteID{TLS_PSK_WITH_AES_128_CCM_8},
-		PSK: func(hint []byte) ([]byte, error) {
-			return nil, nil
-		},
-		Certificates: []tls.Certificate{cert},
-	}
-	if err = validateConfig(config); !errors.Is(errNoAvailableCertificateCipherSuite, err) {
-		t.Fatalf("TestValidateConfig: Client error exp(%v) failed(%v)", errNoAvailableCertificateCipherSuite, err)
-	}
-
-	// PSK identity hint with not PSK
-	config = &Config{
-		CipherSuites:    []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-		PSK:             nil,
-		PSKIdentityHint: []byte{},
-	}
-	if err = validateConfig(config); !errors.Is(err, errIdentityNoPSK) {
-		t.Fatalf("TestValidateConfig: Client error exp(%v) failed(%v)", errIdentityNoPSK, err)
-	}
-
-	// Invalid private key
-	dsaPrivateKey := &dsa.PrivateKey{}
-	err = dsa.GenerateParameters(&dsaPrivateKey.Parameters, rand.Reader, dsa.L1024N160)
-	if err != nil {
-		t.Fatalf("TestValidateConfig: Config validation error(%v), DSA parameters not generated", err)
-		return
-	}
-	err = dsa.GenerateKey(dsaPrivateKey, rand.Reader)
-	if err != nil {
-		t.Fatalf("TestValidateConfig: Config validation error(%v), DSA private key not generated", err)
-		return
-	}
-	config = &Config{
-		CipherSuites: []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-		Certificates: []tls.Certificate{{Certificate: cert.Certificate, PrivateKey: dsaPrivateKey}},
-	}
-	if err = validateConfig(config); !errors.Is(err, errInvalidPrivateKey) {
-		t.Fatalf("TestValidateConfig: Client error exp(%v) failed(%v)", errInvalidPrivateKey, err)
-	}
-
-	// PrivateKey without Certificate
-	config = &Config{
-		CipherSuites: []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-		Certificates: []tls.Certificate{{PrivateKey: cert.PrivateKey}},
-	}
-	if err = validateConfig(config); !errors.Is(err, errInvalidCertificate) {
-		t.Fatalf("TestValidateConfig: Client error exp(%v) failed(%v)", errInvalidCertificate, err)
-	}
-
-	// Invalid cipher suites
-	config = &Config{CipherSuites: []CipherSuiteID{0x0000}}
-	if err = validateConfig(config); err == nil {
-		t.Fatal("TestValidateConfig: Client error expected with invalid CipherSuiteID")
-	}
-
-	// Valid config
-	rsaPrivateKey, err := rsa.GenerateKey(rand.Reader, 2048)
-	if err != nil {
-		t.Fatalf("TestValidateConfig: Config validation error(%v), RSA private key not generated", err)
-		return
-	}
-	config = &Config{
-		CipherSuites: []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-		Certificates: []tls.Certificate{cert, {Certificate: cert.Certificate, PrivateKey: rsaPrivateKey}},
-	}
-	if err = validateConfig(config); err != nil {
-		t.Fatalf("TestValidateConfig: Client error exp(%v) failed(%v)", nil, err)
-	}
-}
diff --git a/anylink/dtls-2.0.9/conn.go b/anylink/dtls-2.0.9/conn.go
deleted file mode 100644
index b44d6ad..0000000
--- a/anylink/dtls-2.0.9/conn.go
+++ /dev/null
@@ -1,979 +0,0 @@
-package dtls
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"io"
-	"net"
-	"sync"
-	"sync/atomic"
-	"time"
-
-	"github.com/pion/dtls/v2/internal/closer"
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-	"github.com/pion/dtls/v2/pkg/crypto/signaturehash"
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-	"github.com/pion/logging"
-	"github.com/pion/transport/connctx"
-	"github.com/pion/transport/deadline"
-	"github.com/pion/transport/replaydetector"
-)
-
-const (
-	initialTickerInterval = time.Second
-	cookieLength          = 20
-	defaultNamedCurve     = elliptic.X25519
-	inboundBufferSize     = 8192
-	// Default replay protection window is specified by RFC 6347 Section 4.1.2.6
-	defaultReplayProtectionWindow = 64
-)
-
-func invalidKeyingLabels() map[string]bool {
-	return map[string]bool{
-		"client finished": true,
-		"server finished": true,
-		"master secret":   true,
-		"key expansion":   true,
-	}
-}
-
-// Conn represents a DTLS connection
-type Conn struct {
-	lock           sync.RWMutex     // Internal lock (must not be public)
-	nextConn       connctx.ConnCtx  // Embedded Conn, typically a udpconn we read/write from
-	fragmentBuffer *fragmentBuffer  // out-of-order and missing fragment handling
-	handshakeCache *handshakeCache  // caching of handshake messages for verifyData generation
-	decrypted      chan interface{} // Decrypted Application Data or error, pull by calling `Read`
-
-	state State // Internal state
-
-	maximumTransmissionUnit int
-
-	handshakeCompletedSuccessfully atomic.Value
-
-	encryptedPackets [][]byte
-
-	connectionClosedByUser bool
-	closeLock              sync.Mutex
-	closed                 *closer.Closer
-	handshakeLoopsFinished sync.WaitGroup
-
-	readDeadline  *deadline.Deadline
-	writeDeadline *deadline.Deadline
-
-	log logging.LeveledLogger
-
-	reading               chan struct{}
-	handshakeRecv         chan chan struct{}
-	cancelHandshaker      func()
-	cancelHandshakeReader func()
-
-	fsm *handshakeFSM
-
-	replayProtectionWindow uint
-}
-
-func createConn(ctx context.Context, nextConn net.Conn, config *Config, isClient bool, initialState *State) (*Conn, error) {
-	err := validateConfig(config)
-	if err != nil {
-		return nil, err
-	}
-
-	if nextConn == nil {
-		return nil, errNilNextConn
-	}
-
-	cipherSuites, err := parseCipherSuites(config.CipherSuites, config.CustomCipherSuites, config.PSK == nil || len(config.Certificates) > 0, config.PSK != nil)
-	if err != nil {
-		return nil, err
-	}
-
-	signatureSchemes, err := signaturehash.ParseSignatureSchemes(config.SignatureSchemes, config.InsecureHashes)
-	if err != nil {
-		return nil, err
-	}
-
-	workerInterval := initialTickerInterval
-	if config.FlightInterval != 0 {
-		workerInterval = config.FlightInterval
-	}
-
-	loggerFactory := config.LoggerFactory
-	if loggerFactory == nil {
-		loggerFactory = logging.NewDefaultLoggerFactory()
-	}
-
-	logger := loggerFactory.NewLogger("dtls")
-
-	mtu := config.MTU
-	if mtu <= 0 {
-		mtu = defaultMTU
-	}
-
-	replayProtectionWindow := config.ReplayProtectionWindow
-	if replayProtectionWindow <= 0 {
-		replayProtectionWindow = defaultReplayProtectionWindow
-	}
-
-	c := &Conn{
-		nextConn:                connctx.New(nextConn),
-		fragmentBuffer:          newFragmentBuffer(),
-		handshakeCache:          newHandshakeCache(),
-		maximumTransmissionUnit: mtu,
-
-		decrypted: make(chan interface{}, 1),
-		log:       logger,
-
-		readDeadline:  deadline.New(),
-		writeDeadline: deadline.New(),
-
-		reading:          make(chan struct{}, 1),
-		handshakeRecv:    make(chan chan struct{}),
-		closed:           closer.NewCloser(),
-		cancelHandshaker: func() {},
-
-		replayProtectionWindow: uint(replayProtectionWindow),
-
-		state: State{
-			isClient: isClient,
-		},
-	}
-
-	c.setRemoteEpoch(0)
-	c.setLocalEpoch(0)
-
-	serverName := config.ServerName
-	// Use host from conn address when serverName is not provided
-	if isClient && serverName == "" && nextConn.RemoteAddr() != nil {
-		remoteAddr := nextConn.RemoteAddr().String()
-		var host string
-		host, _, err = net.SplitHostPort(remoteAddr)
-		if err != nil {
-			serverName = remoteAddr
-		} else {
-			serverName = host
-		}
-	}
-
-	hsCfg := &handshakeConfig{
-		localPSKCallback:            config.PSK,
-		localPSKIdentityHint:        config.PSKIdentityHint,
-		localCiscoCompatCallback:    config.CiscoCompat,
-		localCipherSuites:           cipherSuites,
-		localSignatureSchemes:       signatureSchemes,
-		extendedMasterSecret:        config.ExtendedMasterSecret,
-		localSRTPProtectionProfiles: config.SRTPProtectionProfiles,
-		serverName:                  serverName,
-		clientAuth:                  config.ClientAuth,
-		localCertificates:           config.Certificates,
-		insecureSkipVerify:          config.InsecureSkipVerify,
-		verifyPeerCertificate:       config.VerifyPeerCertificate,
-		rootCAs:                     config.RootCAs,
-		clientCAs:                   config.ClientCAs,
-		customCipherSuites:          config.CustomCipherSuites,
-		retransmitInterval:          workerInterval,
-		log:                         logger,
-		initialEpoch:                0,
-		keyLogWriter:                config.KeyLogWriter,
-	}
-
-	var initialFlight flightVal
-	var initialFSMState handshakeState
-
-	if initialState != nil {
-		if c.state.isClient {
-			initialFlight = flight5
-		} else {
-			initialFlight = flight6
-		}
-		initialFSMState = handshakeFinished
-
-		c.state = *initialState
-	} else {
-		if c.state.isClient {
-			initialFlight = flight1
-		} else {
-			initialFlight = flight0
-		}
-		initialFSMState = handshakePreparing
-	}
-	// Do handshake
-	if err := c.handshake(ctx, hsCfg, initialFlight, initialFSMState); err != nil {
-		return nil, err
-	}
-
-	c.log.Trace("Handshake Completed")
-
-	return c, nil
-}
-
-// Dial connects to the given network address and establishes a DTLS connection on top.
-// Connection handshake will timeout using ConnectContextMaker in the Config.
-// If you want to specify the timeout duration, use DialWithContext() instead.
-func Dial(network string, raddr *net.UDPAddr, config *Config) (*Conn, error) {
-	ctx, cancel := config.connectContextMaker()
-	defer cancel()
-
-	return DialWithContext(ctx, network, raddr, config)
-}
-
-// Client establishes a DTLS connection over an existing connection.
-// Connection handshake will timeout using ConnectContextMaker in the Config.
-// If you want to specify the timeout duration, use ClientWithContext() instead.
-func Client(conn net.Conn, config *Config) (*Conn, error) {
-	ctx, cancel := config.connectContextMaker()
-	defer cancel()
-
-	return ClientWithContext(ctx, conn, config)
-}
-
-// Server listens for incoming DTLS connections.
-// Connection handshake will timeout using ConnectContextMaker in the Config.
-// If you want to specify the timeout duration, use ServerWithContext() instead.
-func Server(conn net.Conn, config *Config) (*Conn, error) {
-	ctx, cancel := config.connectContextMaker()
-	defer cancel()
-
-	return ServerWithContext(ctx, conn, config)
-}
-
-// DialWithContext connects to the given network address and establishes a DTLS connection on top.
-func DialWithContext(ctx context.Context, network string, raddr *net.UDPAddr, config *Config) (*Conn, error) {
-	pConn, err := net.DialUDP(network, nil, raddr)
-	if err != nil {
-		return nil, err
-	}
-	return ClientWithContext(ctx, pConn, config)
-}
-
-// ClientWithContext establishes a DTLS connection over an existing connection.
-func ClientWithContext(ctx context.Context, conn net.Conn, config *Config) (*Conn, error) {
-	switch {
-	case config == nil:
-		return nil, errNoConfigProvided
-	case config.PSK != nil && config.PSKIdentityHint == nil:
-		return nil, errPSKAndIdentityMustBeSetForClient
-	}
-
-	return createConn(ctx, conn, config, true, nil)
-}
-
-// ServerWithContext listens for incoming DTLS connections.
-func ServerWithContext(ctx context.Context, conn net.Conn, config *Config) (*Conn, error) {
-	if config == nil {
-		return nil, errNoConfigProvided
-	}
-
-	return createConn(ctx, conn, config, false, nil)
-}
-
-// Read reads data from the connection.
-func (c *Conn) Read(p []byte) (n int, err error) {
-	if !c.isHandshakeCompletedSuccessfully() {
-		return 0, errHandshakeInProgress
-	}
-
-	select {
-	case <-c.readDeadline.Done():
-		return 0, errDeadlineExceeded
-	default:
-	}
-
-	for {
-		select {
-		case <-c.readDeadline.Done():
-			return 0, errDeadlineExceeded
-		case out, ok := <-c.decrypted:
-			if !ok {
-				return 0, io.EOF
-			}
-			switch val := out.(type) {
-			case ([]byte):
-				if len(p) < len(val) {
-					return 0, errBufferTooSmall
-				}
-				copy(p, val)
-				return len(val), nil
-			case (error):
-				return 0, val
-			}
-		}
-	}
-}
-
-// Write writes len(p) bytes from p to the DTLS connection
-func (c *Conn) Write(p []byte) (int, error) {
-	if c.isConnectionClosed() {
-		return 0, ErrConnClosed
-	}
-
-	select {
-	case <-c.writeDeadline.Done():
-		return 0, errDeadlineExceeded
-	default:
-	}
-
-	if !c.isHandshakeCompletedSuccessfully() {
-		return 0, errHandshakeInProgress
-	}
-
-	return len(p), c.writePackets(c.writeDeadline, []*packet{
-		{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Epoch:   c.getLocalEpoch(),
-					Version: protocol.Version1_2,
-				},
-				Content: &protocol.ApplicationData{
-					Data: p,
-				},
-			},
-			shouldEncrypt: true,
-		},
-	})
-}
-
-// Close closes the connection.
-func (c *Conn) Close() error {
-	err := c.close(true)
-	c.handshakeLoopsFinished.Wait()
-	return err
-}
-
-// ConnectionState returns basic DTLS details about the connection.
-// Note that this replaced the `Export` function of v1.
-func (c *Conn) ConnectionState() State {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return *c.state.clone()
-}
-
-// SelectedSRTPProtectionProfile returns the selected SRTPProtectionProfile
-func (c *Conn) SelectedSRTPProtectionProfile() (SRTPProtectionProfile, bool) {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-
-	if c.state.srtpProtectionProfile == 0 {
-		return 0, false
-	}
-
-	return c.state.srtpProtectionProfile, true
-}
-
-func (c *Conn) writePackets(ctx context.Context, pkts []*packet) error {
-	c.lock.Lock()
-	defer c.lock.Unlock()
-
-	var rawPackets [][]byte
-
-	for _, p := range pkts {
-		if h, ok := p.record.Content.(*handshake.Handshake); ok {
-			handshakeRaw, err := p.record.Marshal()
-			if err != nil {
-				return err
-			}
-
-			c.log.Tracef("[handshake:%v] -> %s (epoch: %d, seq: %d)",
-				srvCliStr(c.state.isClient), h.Header.Type.String(),
-				p.record.Header.Epoch, h.Header.MessageSequence)
-			c.handshakeCache.push(handshakeRaw[recordlayer.HeaderSize:], p.record.Header.Epoch, h.Header.MessageSequence, h.Header.Type, c.state.isClient)
-
-			rawHandshakePackets, err := c.processHandshakePacket(p, h)
-			if err != nil {
-				return err
-			}
-			rawPackets = append(rawPackets, rawHandshakePackets...)
-		} else {
-			rawPacket, err := c.processPacket(p)
-			if err != nil {
-				return err
-			}
-			rawPackets = append(rawPackets, rawPacket)
-		}
-	}
-	if len(rawPackets) == 0 {
-		return nil
-	}
-	compactedRawPackets := c.compactRawPackets(rawPackets)
-
-	for _, compactedRawPackets := range compactedRawPackets {
-		if _, err := c.nextConn.WriteContext(ctx, compactedRawPackets); err != nil {
-			return netError(err)
-		}
-	}
-
-	return nil
-}
-
-func (c *Conn) compactRawPackets(rawPackets [][]byte) [][]byte {
-	combinedRawPackets := make([][]byte, 0)
-	currentCombinedRawPacket := make([]byte, 0)
-
-	for _, rawPacket := range rawPackets {
-		if len(currentCombinedRawPacket) > 0 && len(currentCombinedRawPacket)+len(rawPacket) >= c.maximumTransmissionUnit {
-			combinedRawPackets = append(combinedRawPackets, currentCombinedRawPacket)
-			currentCombinedRawPacket = []byte{}
-		}
-		currentCombinedRawPacket = append(currentCombinedRawPacket, rawPacket...)
-	}
-
-	combinedRawPackets = append(combinedRawPackets, currentCombinedRawPacket)
-
-	return combinedRawPackets
-}
-
-func (c *Conn) processPacket(p *packet) ([]byte, error) {
-	epoch := p.record.Header.Epoch
-	for len(c.state.localSequenceNumber) <= int(epoch) {
-		c.state.localSequenceNumber = append(c.state.localSequenceNumber, uint64(0))
-	}
-	seq := atomic.AddUint64(&c.state.localSequenceNumber[epoch], 1) - 1
-	if seq > recordlayer.MaxSequenceNumber {
-		// RFC 6347 Section 4.1.0
-		// The implementation must either abandon an association or rehandshake
-		// prior to allowing the sequence number to wrap.
-		return nil, errSequenceNumberOverflow
-	}
-	p.record.Header.SequenceNumber = seq
-
-	rawPacket, err := p.record.Marshal()
-	if err != nil {
-		return nil, err
-	}
-
-	if p.shouldEncrypt {
-		var err error
-		rawPacket, err = c.state.cipherSuite.Encrypt(p.record, rawPacket)
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	return rawPacket, nil
-}
-
-func (c *Conn) processHandshakePacket(p *packet, h *handshake.Handshake) ([][]byte, error) {
-	rawPackets := make([][]byte, 0)
-
-	handshakeFragments, err := c.fragmentHandshake(h)
-	if err != nil {
-		return nil, err
-	}
-	epoch := p.record.Header.Epoch
-	for len(c.state.localSequenceNumber) <= int(epoch) {
-		c.state.localSequenceNumber = append(c.state.localSequenceNumber, uint64(0))
-	}
-
-	for _, handshakeFragment := range handshakeFragments {
-		seq := atomic.AddUint64(&c.state.localSequenceNumber[epoch], 1) - 1
-		if seq > recordlayer.MaxSequenceNumber {
-			return nil, errSequenceNumberOverflow
-		}
-
-		recordlayerHeader := &recordlayer.Header{
-			Version:        p.record.Header.Version,
-			ContentType:    p.record.Header.ContentType,
-			ContentLen:     uint16(len(handshakeFragment)),
-			Epoch:          p.record.Header.Epoch,
-			SequenceNumber: seq,
-		}
-
-		recordlayerHeaderBytes, err := recordlayerHeader.Marshal()
-		if err != nil {
-			return nil, err
-		}
-
-		p.record.Header = *recordlayerHeader
-
-		rawPacket := append(recordlayerHeaderBytes, handshakeFragment...)
-		if p.shouldEncrypt {
-			var err error
-			rawPacket, err = c.state.cipherSuite.Encrypt(p.record, rawPacket)
-			if err != nil {
-				return nil, err
-			}
-		}
-
-		rawPackets = append(rawPackets, rawPacket)
-	}
-
-	return rawPackets, nil
-}
-
-func (c *Conn) fragmentHandshake(h *handshake.Handshake) ([][]byte, error) {
-	content, err := h.Message.Marshal()
-	if err != nil {
-		return nil, err
-	}
-
-	fragmentedHandshakes := make([][]byte, 0)
-
-	contentFragments := splitBytes(content, c.maximumTransmissionUnit)
-	if len(contentFragments) == 0 {
-		contentFragments = [][]byte{
-			{},
-		}
-	}
-
-	offset := 0
-	for _, contentFragment := range contentFragments {
-		contentFragmentLen := len(contentFragment)
-
-		headerFragment := &handshake.Header{
-			Type:            h.Header.Type,
-			Length:          h.Header.Length,
-			MessageSequence: h.Header.MessageSequence,
-			FragmentOffset:  uint32(offset),
-			FragmentLength:  uint32(contentFragmentLen),
-		}
-
-		offset += contentFragmentLen
-
-		headerFragmentRaw, err := headerFragment.Marshal()
-		if err != nil {
-			return nil, err
-		}
-
-		fragmentedHandshake := append(headerFragmentRaw, contentFragment...)
-		fragmentedHandshakes = append(fragmentedHandshakes, fragmentedHandshake)
-	}
-
-	return fragmentedHandshakes, nil
-}
-
-var poolReadBuffer = sync.Pool{ //nolint:gochecknoglobals
-	New: func() interface{} {
-		b := make([]byte, inboundBufferSize)
-		return &b
-	},
-}
-
-func (c *Conn) readAndBuffer(ctx context.Context) error {
-	bufptr := poolReadBuffer.Get().(*[]byte)
-	defer poolReadBuffer.Put(bufptr)
-
-	b := *bufptr
-	i, err := c.nextConn.ReadContext(ctx, b)
-	if err != nil {
-		return netError(err)
-	}
-
-	pkts, err := recordlayer.UnpackDatagram(b[:i])
-	if err != nil {
-		return err
-	}
-
-	var hasHandshake bool
-	for _, p := range pkts {
-		hs, alert, err := c.handleIncomingPacket(p, true)
-		if alert != nil {
-			if alertErr := c.notify(ctx, alert.Level, alert.Description); alertErr != nil {
-				if err == nil {
-					err = alertErr
-				}
-			}
-		}
-		if hs {
-			hasHandshake = true
-		}
-		switch e := err.(type) {
-		case nil:
-		case *errAlert:
-			if e.IsFatalOrCloseNotify() {
-				return e
-			}
-		default:
-			return e
-		}
-	}
-	if hasHandshake {
-		done := make(chan struct{})
-		select {
-		case c.handshakeRecv <- done:
-			// If the other party may retransmit the flight,
-			// we should respond even if it not a new message.
-			<-done
-		case <-c.fsm.Done():
-		}
-	}
-	return nil
-}
-
-func (c *Conn) handleQueuedPackets(ctx context.Context) error {
-	pkts := c.encryptedPackets
-	c.encryptedPackets = nil
-
-	for _, p := range pkts {
-		_, alert, err := c.handleIncomingPacket(p, false) // don't re-enqueue
-		if alert != nil {
-			if alertErr := c.notify(ctx, alert.Level, alert.Description); alertErr != nil {
-				if err == nil {
-					err = alertErr
-				}
-			}
-		}
-		switch e := err.(type) {
-		case nil:
-		case *errAlert:
-			if e.IsFatalOrCloseNotify() {
-				return e
-			}
-		default:
-			return e
-		}
-	}
-	return nil
-}
-
-func (c *Conn) handleIncomingPacket(buf []byte, enqueue bool) (bool, *alert.Alert, error) { //nolint:gocognit
-	h := &recordlayer.Header{}
-	if err := h.Unmarshal(buf); err != nil {
-		// Decode error must be silently discarded
-		// [RFC6347 Section-4.1.2.7]
-		c.log.Debugf("discarded broken packet: %v", err)
-		return false, nil, nil
-	}
-
-	// Validate epoch
-	remoteEpoch := c.getRemoteEpoch()
-	if h.Epoch > remoteEpoch {
-		if h.Epoch > remoteEpoch+1 {
-			c.log.Debugf("discarded future packet (epoch: %d, seq: %d)",
-				h.Epoch, h.SequenceNumber,
-			)
-			return false, nil, nil
-		}
-		if enqueue {
-			c.log.Debug("received packet of next epoch, queuing packet")
-			c.encryptedPackets = append(c.encryptedPackets, buf)
-		}
-		return false, nil, nil
-	}
-
-	// Anti-replay protection
-	for len(c.state.replayDetector) <= int(h.Epoch) {
-		c.state.replayDetector = append(c.state.replayDetector,
-			replaydetector.New(c.replayProtectionWindow, recordlayer.MaxSequenceNumber),
-		)
-	}
-	markPacketAsValid, ok := c.state.replayDetector[int(h.Epoch)].Check(h.SequenceNumber)
-	if !ok {
-		c.log.Debugf("discarded duplicated packet (epoch: %d, seq: %d)",
-			h.Epoch, h.SequenceNumber,
-		)
-		return false, nil, nil
-	}
-
-	// Decrypt
-	if h.Epoch != 0 {
-		if c.state.cipherSuite == nil || !c.state.cipherSuite.IsInitialized() {
-			if enqueue {
-				c.encryptedPackets = append(c.encryptedPackets, buf)
-				c.log.Debug("handshake not finished, queuing packet")
-			}
-			return false, nil, nil
-		}
-
-		var err error
-		buf, err = c.state.cipherSuite.Decrypt(buf)
-		if err != nil {
-			c.log.Debugf("%s: decrypt failed: %s", srvCliStr(c.state.isClient), err)
-			return false, nil, nil
-		}
-	}
-
-	isHandshake, err := c.fragmentBuffer.push(append([]byte{}, buf...))
-	if err != nil {
-		// Decode error must be silently discarded
-		// [RFC6347 Section-4.1.2.7]
-		c.log.Debugf("defragment failed: %s", err)
-		return false, nil, nil
-	} else if isHandshake {
-		markPacketAsValid()
-		for out, epoch := c.fragmentBuffer.pop(); out != nil; out, epoch = c.fragmentBuffer.pop() {
-			rawHandshake := &handshake.Handshake{}
-			if err := rawHandshake.Unmarshal(out); err != nil {
-				c.log.Debugf("%s: handshake parse failed: %s", srvCliStr(c.state.isClient), err)
-				continue
-			}
-
-			_ = c.handshakeCache.push(out, epoch, rawHandshake.Header.MessageSequence, rawHandshake.Header.Type, !c.state.isClient)
-		}
-
-		return true, nil, nil
-	}
-
-	r := &recordlayer.RecordLayer{}
-	if err := r.Unmarshal(buf); err != nil {
-		return false, &alert.Alert{Level: alert.Fatal, Description: alert.DecodeError}, err
-	}
-
-	switch content := r.Content.(type) {
-	case *alert.Alert:
-		c.log.Tracef("%s: <- %s", srvCliStr(c.state.isClient), content.String())
-		var a *alert.Alert
-		if content.Description == alert.CloseNotify {
-			// Respond with a close_notify [RFC5246 Section 7.2.1]
-			a = &alert.Alert{Level: alert.Warning, Description: alert.CloseNotify}
-		}
-		markPacketAsValid()
-		return false, a, &errAlert{content}
-	case *protocol.ChangeCipherSpec:
-		if c.state.cipherSuite == nil || !c.state.cipherSuite.IsInitialized() {
-			if enqueue {
-				c.encryptedPackets = append(c.encryptedPackets, buf)
-				c.log.Debugf("CipherSuite not initialized, queuing packet")
-			}
-			return false, nil, nil
-		}
-
-		newRemoteEpoch := h.Epoch + 1
-		c.log.Tracef("%s: <- ChangeCipherSpec (epoch: %d)", srvCliStr(c.state.isClient), newRemoteEpoch)
-
-		if c.getRemoteEpoch()+1 == newRemoteEpoch {
-			c.setRemoteEpoch(newRemoteEpoch)
-			markPacketAsValid()
-		}
-	case *protocol.ApplicationData:
-		if h.Epoch == 0 {
-			return false, &alert.Alert{Level: alert.Fatal, Description: alert.UnexpectedMessage}, errApplicationDataEpochZero
-		}
-
-		markPacketAsValid()
-
-		select {
-		case c.decrypted <- content.Data:
-		case <-c.closed.Done():
-		}
-
-	default:
-		return false, &alert.Alert{Level: alert.Fatal, Description: alert.UnexpectedMessage}, fmt.Errorf("%w: %d", errUnhandledContextType, content.ContentType())
-	}
-	return false, nil, nil
-}
-
-func (c *Conn) recvHandshake() <-chan chan struct{} {
-	return c.handshakeRecv
-}
-
-func (c *Conn) notify(ctx context.Context, level alert.Level, desc alert.Description) error {
-	return c.writePackets(ctx, []*packet{
-		{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Epoch:   c.getLocalEpoch(),
-					Version: protocol.Version1_2,
-				},
-				Content: &alert.Alert{
-					Level:       level,
-					Description: desc,
-				},
-			},
-			shouldEncrypt: c.isHandshakeCompletedSuccessfully(),
-		},
-	})
-}
-
-func (c *Conn) setHandshakeCompletedSuccessfully() {
-	c.handshakeCompletedSuccessfully.Store(struct{ bool }{true})
-}
-
-func (c *Conn) isHandshakeCompletedSuccessfully() bool {
-	boolean, _ := c.handshakeCompletedSuccessfully.Load().(struct{ bool })
-	return boolean.bool
-}
-
-func (c *Conn) handshake(ctx context.Context, cfg *handshakeConfig, initialFlight flightVal, initialState handshakeState) error { //nolint:gocognit
-	c.fsm = newHandshakeFSM(&c.state, c.handshakeCache, cfg, initialFlight)
-
-	done := make(chan struct{})
-	ctxRead, cancelRead := context.WithCancel(context.Background())
-	c.cancelHandshakeReader = cancelRead
-	cfg.onFlightState = func(f flightVal, s handshakeState) {
-		if s == handshakeFinished && !c.isHandshakeCompletedSuccessfully() {
-			c.setHandshakeCompletedSuccessfully()
-			close(done)
-		}
-	}
-
-	ctxHs, cancel := context.WithCancel(context.Background())
-	c.cancelHandshaker = cancel
-
-	firstErr := make(chan error, 1)
-
-	c.handshakeLoopsFinished.Add(2)
-
-	// Handshake routine should be live until close.
-	// The other party may request retransmission of the last flight to cope with packet drop.
-	go func() {
-		defer c.handshakeLoopsFinished.Done()
-		err := c.fsm.Run(ctxHs, c, initialState)
-		if !errors.Is(err, context.Canceled) {
-			select {
-			case firstErr <- err:
-			default:
-			}
-		}
-	}()
-	go func() {
-		defer func() {
-			// Escaping read loop.
-			// It's safe to close decrypted channnel now.
-			close(c.decrypted)
-
-			// Force stop handshaker when the underlying connection is closed.
-			cancel()
-		}()
-		defer c.handshakeLoopsFinished.Done()
-		for {
-			if err := c.readAndBuffer(ctxRead); err != nil {
-				switch e := err.(type) {
-				case *errAlert:
-					if !e.IsFatalOrCloseNotify() {
-						if c.isHandshakeCompletedSuccessfully() {
-							// Pass the error to Read()
-							select {
-							case c.decrypted <- err:
-							case <-c.closed.Done():
-							}
-						}
-						continue // non-fatal alert must not stop read loop
-					}
-				case error:
-					switch err {
-					case context.DeadlineExceeded, context.Canceled, io.EOF:
-					default:
-						if c.isHandshakeCompletedSuccessfully() {
-							// Keep read loop and pass the read error to Read()
-							select {
-							case c.decrypted <- err:
-							case <-c.closed.Done():
-							}
-							continue // non-fatal alert must not stop read loop
-						}
-					}
-				}
-				select {
-				case firstErr <- err:
-				default:
-				}
-
-				if e, ok := err.(*errAlert); ok {
-					if e.IsFatalOrCloseNotify() {
-						_ = c.close(false)
-					}
-				}
-				return
-			}
-		}
-	}()
-
-	select {
-	case err := <-firstErr:
-		cancelRead()
-		cancel()
-		return c.translateHandshakeCtxError(err)
-	case <-ctx.Done():
-		cancelRead()
-		cancel()
-		return c.translateHandshakeCtxError(ctx.Err())
-	case <-done:
-		return nil
-	}
-}
-
-func (c *Conn) translateHandshakeCtxError(err error) error {
-	if err == nil {
-		return nil
-	}
-	if errors.Is(err, context.Canceled) && c.isHandshakeCompletedSuccessfully() {
-		return nil
-	}
-	return &HandshakeError{Err: err}
-}
-
-func (c *Conn) close(byUser bool) error {
-	c.cancelHandshaker()
-	c.cancelHandshakeReader()
-
-	if c.isHandshakeCompletedSuccessfully() && byUser {
-		// Discard error from notify() to return non-error on the first user call of Close()
-		// even if the underlying connection is already closed.
-		_ = c.notify(context.Background(), alert.Warning, alert.CloseNotify)
-	}
-
-	c.closeLock.Lock()
-	// Don't return ErrConnClosed at the first time of the call from user.
-	closedByUser := c.connectionClosedByUser
-	if byUser {
-		c.connectionClosedByUser = true
-	}
-	c.closed.Close()
-	c.closeLock.Unlock()
-
-	if closedByUser {
-		return ErrConnClosed
-	}
-
-	return c.nextConn.Close()
-}
-
-func (c *Conn) isConnectionClosed() bool {
-	select {
-	case <-c.closed.Done():
-		return true
-	default:
-		return false
-	}
-}
-
-func (c *Conn) setLocalEpoch(epoch uint16) {
-	c.state.localEpoch.Store(epoch)
-}
-
-func (c *Conn) getLocalEpoch() uint16 {
-	return c.state.localEpoch.Load().(uint16)
-}
-
-func (c *Conn) setRemoteEpoch(epoch uint16) {
-	c.state.remoteEpoch.Store(epoch)
-}
-
-func (c *Conn) getRemoteEpoch() uint16 {
-	return c.state.remoteEpoch.Load().(uint16)
-}
-
-// LocalAddr implements net.Conn.LocalAddr
-func (c *Conn) LocalAddr() net.Addr {
-	return c.nextConn.LocalAddr()
-}
-
-// RemoteAddr implements net.Conn.RemoteAddr
-func (c *Conn) RemoteAddr() net.Addr {
-	return c.nextConn.RemoteAddr()
-}
-
-// SetDeadline implements net.Conn.SetDeadline
-func (c *Conn) SetDeadline(t time.Time) error {
-	c.readDeadline.Set(t)
-	return c.SetWriteDeadline(t)
-}
-
-// SetReadDeadline implements net.Conn.SetReadDeadline
-func (c *Conn) SetReadDeadline(t time.Time) error {
-	c.readDeadline.Set(t)
-	// Read deadline is fully managed by this layer.
-	// Don't set read deadline to underlying connection.
-	return nil
-}
-
-// SetWriteDeadline implements net.Conn.SetWriteDeadline
-func (c *Conn) SetWriteDeadline(t time.Time) error {
-	c.writeDeadline.Set(t)
-	// Write deadline is also fully managed by this layer.
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/conn_go_test.go b/anylink/dtls-2.0.9/conn_go_test.go
deleted file mode 100644
index 17a1c62..0000000
--- a/anylink/dtls-2.0.9/conn_go_test.go
+++ /dev/null
@@ -1,169 +0,0 @@
-// +build !js
-
-package dtls
-
-import (
-	"bytes"
-	"context"
-	"crypto/tls"
-	"net"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2/internal/net/dpipe"
-	"github.com/pion/dtls/v2/pkg/crypto/selfsign"
-	"github.com/pion/transport/test"
-)
-
-func TestContextConfig(t *testing.T) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(time.Second * 20)
-	defer lim.Stop()
-
-	report := test.CheckRoutines(t)
-	defer report()
-
-	addrListen, err := net.ResolveUDPAddr("udp", "localhost:0")
-	if err != nil {
-		t.Fatalf("Unexpected error: %v", err)
-	}
-
-	// Dummy listener
-	listen, err := net.ListenUDP("udp", addrListen)
-	if err != nil {
-		t.Fatalf("Unexpected error: %v", err)
-	}
-	defer func() {
-		_ = listen.Close()
-	}()
-	addr := listen.LocalAddr().(*net.UDPAddr)
-
-	cert, err := selfsign.GenerateSelfSigned()
-	if err != nil {
-		t.Fatalf("Unexpected error: %v", err)
-	}
-	config := &Config{
-		ConnectContextMaker: func() (context.Context, func()) {
-			return context.WithTimeout(context.Background(), 40*time.Millisecond)
-		},
-		Certificates: []tls.Certificate{cert},
-	}
-
-	dials := map[string]struct {
-		f     func() (func() (net.Conn, error), func())
-		order []byte
-	}{
-		"Dial": {
-			f: func() (func() (net.Conn, error), func()) {
-				return func() (net.Conn, error) {
-						return Dial("udp", addr, config)
-					}, func() {
-					}
-			},
-			order: []byte{0, 1, 2},
-		},
-		"DialWithContext": {
-			f: func() (func() (net.Conn, error), func()) {
-				ctx, cancel := context.WithTimeout(context.Background(), 80*time.Millisecond)
-				return func() (net.Conn, error) {
-						return DialWithContext(ctx, "udp", addr, config)
-					}, func() {
-						cancel()
-					}
-			},
-			order: []byte{0, 2, 1},
-		},
-		"Client": {
-			f: func() (func() (net.Conn, error), func()) {
-				ca, _ := dpipe.Pipe()
-				return func() (net.Conn, error) {
-						return Client(ca, config)
-					}, func() {
-						_ = ca.Close()
-					}
-			},
-			order: []byte{0, 1, 2},
-		},
-		"ClientWithContext": {
-			f: func() (func() (net.Conn, error), func()) {
-				ctx, cancel := context.WithTimeout(context.Background(), 80*time.Millisecond)
-				ca, _ := dpipe.Pipe()
-				return func() (net.Conn, error) {
-						return ClientWithContext(ctx, ca, config)
-					}, func() {
-						cancel()
-						_ = ca.Close()
-					}
-			},
-			order: []byte{0, 2, 1},
-		},
-		"Server": {
-			f: func() (func() (net.Conn, error), func()) {
-				ca, _ := dpipe.Pipe()
-				return func() (net.Conn, error) {
-						return Server(ca, config)
-					}, func() {
-						_ = ca.Close()
-					}
-			},
-			order: []byte{0, 1, 2},
-		},
-		"ServerWithContext": {
-			f: func() (func() (net.Conn, error), func()) {
-				ctx, cancel := context.WithTimeout(context.Background(), 80*time.Millisecond)
-				ca, _ := dpipe.Pipe()
-				return func() (net.Conn, error) {
-						return ServerWithContext(ctx, ca, config)
-					}, func() {
-						cancel()
-						_ = ca.Close()
-					}
-			},
-			order: []byte{0, 2, 1},
-		},
-	}
-
-	for name, dial := range dials {
-		dial := dial
-		t.Run(name, func(t *testing.T) {
-			done := make(chan struct{})
-
-			go func() {
-				d, cancel := dial.f()
-				conn, err := d()
-				defer cancel()
-				if netErr, ok := err.(net.Error); !ok || !netErr.Timeout() {
-					t.Errorf("Client error exp(Temporary network error) failed(%v)", err)
-					close(done)
-					return
-				}
-				done <- struct{}{}
-				if err == nil {
-					_ = conn.Close()
-				}
-			}()
-
-			var order []byte
-			early := time.After(20 * time.Millisecond)
-			late := time.After(60 * time.Millisecond)
-			func() {
-				for len(order) < 3 {
-					select {
-					case <-early:
-						order = append(order, 0)
-					case _, ok := <-done:
-						if !ok {
-							return
-						}
-						order = append(order, 1)
-					case <-late:
-						order = append(order, 2)
-					}
-				}
-			}()
-			if !bytes.Equal(dial.order, order) {
-				t.Errorf("Invalid cancel timing, expected: %v, got: %v", dial.order, order)
-			}
-		})
-	}
-}
diff --git a/anylink/dtls-2.0.9/conn_test.go b/anylink/dtls-2.0.9/conn_test.go
deleted file mode 100644
index b532926..0000000
--- a/anylink/dtls-2.0.9/conn_test.go
+++ /dev/null
@@ -1,2026 +0,0 @@
-package dtls
-
-import (
-	"bytes"
-	"context"
-	"crypto/rand"
-	"crypto/tls"
-	"crypto/x509"
-	"errors"
-	"fmt"
-	"io"
-	"net"
-	"sync"
-	"sync/atomic"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2/internal/ciphersuite"
-	"github.com/pion/dtls/v2/internal/net/dpipe"
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-	"github.com/pion/dtls/v2/pkg/crypto/selfsign"
-	"github.com/pion/dtls/v2/pkg/crypto/signature"
-	"github.com/pion/dtls/v2/pkg/crypto/signaturehash"
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-	"github.com/pion/dtls/v2/pkg/protocol/extension"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-	"github.com/pion/transport/test"
-)
-
-var (
-	errTestPSKInvalidIdentity = errors.New("TestPSK: Server got invalid identity")
-	errPSKRejected            = errors.New("PSK Rejected")
-	errNotExpectedChain       = errors.New("not expected chain")
-	errExpecedChain           = errors.New("expected chain")
-	errWrongCert              = errors.New("wrong cert")
-)
-
-func TestStressDuplex(t *testing.T) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(time.Second * 20)
-	defer lim.Stop()
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	// Run the test
-	stressDuplex(t)
-}
-
-func stressDuplex(t *testing.T) {
-	ca, cb, err := pipeMemory()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	defer func() {
-		err = ca.Close()
-		if err != nil {
-			t.Fatal(err)
-		}
-		err = cb.Close()
-		if err != nil {
-			t.Fatal(err)
-		}
-	}()
-
-	opt := test.Options{
-		MsgSize:  2048,
-		MsgCount: 100,
-	}
-
-	err = test.StressDuplex(ca, cb, opt)
-	if err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestRoutineLeakOnClose(t *testing.T) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(5 * time.Second)
-	defer lim.Stop()
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	ca, cb, err := pipeMemory()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if _, err := ca.Write(make([]byte, 100)); err != nil {
-		t.Fatal(err)
-	}
-	if err := cb.Close(); err != nil {
-		t.Fatal(err)
-	}
-	if err := ca.Close(); err != nil {
-		t.Fatal(err)
-	}
-	// Packet is sent, but not read.
-	// inboundLoop routine should not be leaked.
-}
-
-func TestReadWriteDeadline(t *testing.T) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(5 * time.Second)
-	defer lim.Stop()
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	ca, cb, err := pipeMemory()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if err := ca.SetDeadline(time.Unix(0, 1)); err != nil {
-		t.Fatal(err)
-	}
-	_, werr := ca.Write(make([]byte, 100))
-	if e, ok := werr.(net.Error); ok {
-		if !e.Timeout() {
-			t.Error("Deadline exceeded Write must return Timeout error")
-		}
-		if !e.Temporary() {
-			t.Error("Deadline exceeded Write must return Temporary error")
-		}
-	} else {
-		t.Error("Write must return net.Error error")
-	}
-	_, rerr := ca.Read(make([]byte, 100))
-	if e, ok := rerr.(net.Error); ok {
-		if !e.Timeout() {
-			t.Error("Deadline exceeded Read must return Timeout error")
-		}
-		if !e.Temporary() {
-			t.Error("Deadline exceeded Read must return Temporary error")
-		}
-	} else {
-		t.Error("Read must return net.Error error")
-	}
-	if err := ca.SetDeadline(time.Time{}); err != nil {
-		t.Error(err)
-	}
-
-	if err := ca.Close(); err != nil {
-		t.Error(err)
-	}
-	if err := cb.Close(); err != nil {
-		t.Error(err)
-	}
-
-	if _, err := ca.Write(make([]byte, 100)); !errors.Is(err, ErrConnClosed) {
-		t.Errorf("Write must return %v after close, got %v", ErrConnClosed, err)
-	}
-	if _, err := ca.Read(make([]byte, 100)); !errors.Is(err, io.EOF) {
-		t.Errorf("Read must return %v after close, got %v", io.EOF, err)
-	}
-}
-
-func TestSequenceNumberOverflow(t *testing.T) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(5 * time.Second)
-	defer lim.Stop()
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	t.Run("ApplicationData", func(t *testing.T) {
-		ca, cb, err := pipeMemory()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		atomic.StoreUint64(&ca.state.localSequenceNumber[1], recordlayer.MaxSequenceNumber)
-		if _, werr := ca.Write(make([]byte, 100)); werr != nil {
-			t.Errorf("Write must send message with maximum sequence number, but errord: %v", werr)
-		}
-		if _, werr := ca.Write(make([]byte, 100)); !errors.Is(werr, errSequenceNumberOverflow) {
-			t.Errorf("Write must abandonsend message with maximum sequence number, but errord: %v", werr)
-		}
-
-		if err := ca.Close(); err != nil {
-			t.Error(err)
-		}
-		if err := cb.Close(); err != nil {
-			t.Error(err)
-		}
-	})
-	t.Run("Handshake", func(t *testing.T) {
-		ca, cb, err := pipeMemory()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		ctx, cancel := context.WithTimeout(context.Background(), time.Second)
-		defer cancel()
-
-		atomic.StoreUint64(&ca.state.localSequenceNumber[0], recordlayer.MaxSequenceNumber+1)
-
-		// Try to send handshake packet.
-		if werr := ca.writePackets(ctx, []*packet{
-			{
-				record: &recordlayer.RecordLayer{
-					Header: recordlayer.Header{
-						Version: protocol.Version1_2,
-					},
-					Content: &handshake.Handshake{
-						Message: &handshake.MessageClientHello{
-							Version:            protocol.Version1_2,
-							Cookie:             make([]byte, 64),
-							CipherSuiteIDs:     cipherSuiteIDs(defaultCipherSuites()),
-							CompressionMethods: defaultCompressionMethods(),
-						},
-					},
-				},
-			},
-		}); !errors.Is(werr, errSequenceNumberOverflow) {
-			t.Errorf("Connection must fail on handshake packet reaches maximum sequence number")
-		}
-
-		if err := ca.Close(); err != nil {
-			t.Error(err)
-		}
-		if err := cb.Close(); err != nil {
-			t.Error(err)
-		}
-	})
-}
-
-func pipeMemory() (*Conn, *Conn, error) {
-	// In memory pipe
-	ca, cb := dpipe.Pipe()
-	return pipeConn(ca, cb)
-}
-
-func pipeConn(ca, cb net.Conn) (*Conn, *Conn, error) {
-	type result struct {
-		c   *Conn
-		err error
-	}
-
-	c := make(chan result)
-	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-	defer cancel()
-
-	// Setup client
-	go func() {
-		client, err := testClient(ctx, ca, &Config{SRTPProtectionProfiles: []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_80}}, true)
-		c <- result{client, err}
-	}()
-
-	// Setup server
-	server, err := testServer(ctx, cb, &Config{SRTPProtectionProfiles: []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_80}}, true)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	// Receive client
-	res := <-c
-	if res.err != nil {
-		return nil, nil, res.err
-	}
-
-	return res.c, server, nil
-}
-
-func testClient(ctx context.Context, c net.Conn, cfg *Config, generateCertificate bool) (*Conn, error) {
-	if generateCertificate {
-		clientCert, err := selfsign.GenerateSelfSigned()
-		if err != nil {
-			return nil, err
-		}
-		cfg.Certificates = []tls.Certificate{clientCert}
-	}
-	cfg.InsecureSkipVerify = true
-	return ClientWithContext(ctx, c, cfg)
-}
-
-func testServer(ctx context.Context, c net.Conn, cfg *Config, generateCertificate bool) (*Conn, error) {
-	if generateCertificate {
-		serverCert, err := selfsign.GenerateSelfSigned()
-		if err != nil {
-			return nil, err
-		}
-		cfg.Certificates = []tls.Certificate{serverCert}
-	}
-	return ServerWithContext(ctx, c, cfg)
-}
-
-func TestHandshakeWithAlert(t *testing.T) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(time.Second * 20)
-	defer lim.Stop()
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-	defer cancel()
-
-	cases := map[string]struct {
-		configServer, configClient *Config
-		errServer, errClient       error
-	}{
-		"CipherSuiteNoIntersection": {
-			configServer: &Config{
-				CipherSuites: []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-			},
-			configClient: &Config{
-				CipherSuites: []CipherSuiteID{TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256},
-			},
-			errServer: errCipherSuiteNoIntersection,
-			errClient: &errAlert{&alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}},
-		},
-		"SignatureSchemesNoIntersection": {
-			configServer: &Config{
-				CipherSuites:     []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-				SignatureSchemes: []tls.SignatureScheme{tls.ECDSAWithP256AndSHA256},
-			},
-			configClient: &Config{
-				CipherSuites:     []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-				SignatureSchemes: []tls.SignatureScheme{tls.ECDSAWithP521AndSHA512},
-			},
-			errServer: &errAlert{&alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}},
-			errClient: errNoAvailableSignatureSchemes,
-		},
-	}
-
-	for name, testCase := range cases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			clientErr := make(chan error, 1)
-
-			ca, cb := dpipe.Pipe()
-			go func() {
-				_, err := testClient(ctx, ca, testCase.configClient, true)
-				clientErr <- err
-			}()
-
-			_, errServer := testServer(ctx, cb, testCase.configServer, true)
-			if !errors.Is(errServer, testCase.errServer) {
-				t.Fatalf("Server error exp(%v) failed(%v)", testCase.errServer, errServer)
-			}
-
-			errClient := <-clientErr
-			if !errors.Is(errClient, testCase.errClient) {
-				t.Fatalf("Client error exp(%v) failed(%v)", testCase.errClient, errClient)
-			}
-		})
-	}
-}
-
-func TestExportKeyingMaterial(t *testing.T) {
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	var rand [28]byte
-	exportLabel := "EXTRACTOR-dtls_srtp"
-
-	expectedServerKey := []byte{0x61, 0x09, 0x9d, 0x7d, 0xcb, 0x08, 0x52, 0x2c, 0xe7, 0x7b}
-	expectedClientKey := []byte{0x87, 0xf0, 0x40, 0x02, 0xf6, 0x1c, 0xf1, 0xfe, 0x8c, 0x77}
-
-	c := &Conn{
-		state: State{
-			localRandom:         handshake.Random{GMTUnixTime: time.Unix(500, 0), RandomBytes: rand},
-			remoteRandom:        handshake.Random{GMTUnixTime: time.Unix(1000, 0), RandomBytes: rand},
-			localSequenceNumber: []uint64{0, 0},
-			cipherSuite:         &ciphersuite.TLSEcdheEcdsaWithAes128GcmSha256{},
-		},
-	}
-	c.setLocalEpoch(0)
-	c.setRemoteEpoch(0)
-
-	state := c.ConnectionState()
-	_, err := state.ExportKeyingMaterial(exportLabel, nil, 0)
-	if !errors.Is(err, errHandshakeInProgress) {
-		t.Errorf("ExportKeyingMaterial when epoch == 0: expected '%s' actual '%s'", errHandshakeInProgress, err)
-	}
-
-	c.setLocalEpoch(1)
-	state = c.ConnectionState()
-	_, err = state.ExportKeyingMaterial(exportLabel, []byte{0x00}, 0)
-	if !errors.Is(err, errContextUnsupported) {
-		t.Errorf("ExportKeyingMaterial with context: expected '%s' actual '%s'", errContextUnsupported, err)
-	}
-
-	for k := range invalidKeyingLabels() {
-		state = c.ConnectionState()
-		_, err = state.ExportKeyingMaterial(k, nil, 0)
-		if !errors.Is(err, errReservedExportKeyingMaterial) {
-			t.Errorf("ExportKeyingMaterial reserved label: expected '%s' actual '%s'", errReservedExportKeyingMaterial, err)
-		}
-	}
-
-	state = c.ConnectionState()
-	keyingMaterial, err := state.ExportKeyingMaterial(exportLabel, nil, 10)
-	if err != nil {
-		t.Errorf("ExportKeyingMaterial as server: unexpected error '%s'", err)
-	} else if !bytes.Equal(keyingMaterial, expectedServerKey) {
-		t.Errorf("ExportKeyingMaterial client export: expected (% 02x) actual (% 02x)", expectedServerKey, keyingMaterial)
-	}
-
-	c.state.isClient = true
-	state = c.ConnectionState()
-	keyingMaterial, err = state.ExportKeyingMaterial(exportLabel, nil, 10)
-	if err != nil {
-		t.Errorf("ExportKeyingMaterial as server: unexpected error '%s'", err)
-	} else if !bytes.Equal(keyingMaterial, expectedClientKey) {
-		t.Errorf("ExportKeyingMaterial client export: expected (% 02x) actual (% 02x)", expectedClientKey, keyingMaterial)
-	}
-}
-
-func TestPSK(t *testing.T) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(time.Second * 20)
-	defer lim.Stop()
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	for _, test := range []struct {
-		Name           string
-		ServerIdentity []byte
-		CipherSuites   []CipherSuiteID
-	}{
-		{
-			Name:           "Server identity specified",
-			ServerIdentity: []byte("Test Identity"),
-			CipherSuites:   []CipherSuiteID{TLS_PSK_WITH_AES_128_CCM_8},
-		},
-		{
-			Name:           "Server identity nil",
-			ServerIdentity: nil,
-			CipherSuites:   []CipherSuiteID{TLS_PSK_WITH_AES_128_CCM_8},
-		},
-		{
-			Name:           "TLS_PSK_WITH_AES_128_CBC_SHA256",
-			ServerIdentity: nil,
-			CipherSuites:   []CipherSuiteID{TLS_PSK_WITH_AES_128_CBC_SHA256},
-		},
-	} {
-		test := test
-		t.Run(test.Name, func(t *testing.T) {
-			ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-			defer cancel()
-
-			clientIdentity := []byte("Client Identity")
-			type result struct {
-				c   *Conn
-				err error
-			}
-			clientRes := make(chan result, 1)
-
-			ca, cb := dpipe.Pipe()
-			go func() {
-				conf := &Config{
-					PSK: func(hint []byte) ([]byte, error) {
-						if !bytes.Equal(test.ServerIdentity, hint) { // nolint
-							return nil, fmt.Errorf("TestPSK: Client got invalid identity expected(% 02x) actual(% 02x)", test.ServerIdentity, hint) // nolint
-						}
-
-						return []byte{0xAB, 0xC1, 0x23}, nil
-					},
-					PSKIdentityHint: clientIdentity,
-					CipherSuites:    test.CipherSuites,
-				}
-
-				c, err := testClient(ctx, ca, conf, false)
-				clientRes <- result{c, err}
-			}()
-
-			config := &Config{
-				PSK: func(hint []byte) ([]byte, error) {
-					if !bytes.Equal(clientIdentity, hint) {
-						return nil, fmt.Errorf("%w: expected(% 02x) actual(% 02x)", errTestPSKInvalidIdentity, clientIdentity, hint)
-					}
-					return []byte{0xAB, 0xC1, 0x23}, nil
-				},
-				PSKIdentityHint: test.ServerIdentity,
-				CipherSuites:    test.CipherSuites,
-			}
-
-			server, err := testServer(ctx, cb, config, false)
-			if err != nil {
-				t.Fatalf("TestPSK: Server failed(%v)", err)
-			}
-
-			actualPSKIdentityHint := server.ConnectionState().IdentityHint
-			if !bytes.Equal(actualPSKIdentityHint, clientIdentity) {
-				t.Errorf("TestPSK: Server ClientPSKIdentity Mismatch '%s': expected(%v) actual(%v)", test.Name, clientIdentity, actualPSKIdentityHint)
-			}
-
-			defer func() {
-				_ = server.Close()
-			}()
-
-			res := <-clientRes
-			if res.err != nil {
-				t.Fatal(res.err)
-			}
-			_ = res.c.Close()
-		})
-	}
-}
-
-func TestPSKHintFail(t *testing.T) {
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	serverAlertError := &errAlert{&alert.Alert{Level: alert.Fatal, Description: alert.InternalError}}
-	pskRejected := errPSKRejected
-
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(time.Second * 20)
-	defer lim.Stop()
-	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-	defer cancel()
-
-	clientErr := make(chan error, 1)
-
-	ca, cb := dpipe.Pipe()
-	go func() {
-		conf := &Config{
-			PSK: func(hint []byte) ([]byte, error) {
-				return nil, pskRejected
-			},
-			PSKIdentityHint: []byte{},
-			CipherSuites:    []CipherSuiteID{TLS_PSK_WITH_AES_128_CCM_8},
-		}
-
-		_, err := testClient(ctx, ca, conf, false)
-		clientErr <- err
-	}()
-
-	config := &Config{
-		PSK: func(hint []byte) ([]byte, error) {
-			return nil, pskRejected
-		},
-		PSKIdentityHint: []byte{},
-		CipherSuites:    []CipherSuiteID{TLS_PSK_WITH_AES_128_CCM_8},
-	}
-
-	if _, err := testServer(ctx, cb, config, false); !errors.Is(err, serverAlertError) {
-		t.Fatalf("TestPSK: Server error exp(%v) failed(%v)", serverAlertError, err)
-	}
-
-	if err := <-clientErr; !errors.Is(err, pskRejected) {
-		t.Fatalf("TestPSK: Client error exp(%v) failed(%v)", pskRejected, err)
-	}
-}
-
-func TestClientTimeout(t *testing.T) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(time.Second * 20)
-	defer lim.Stop()
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
-	defer cancel()
-
-	clientErr := make(chan error, 1)
-
-	ca, _ := dpipe.Pipe()
-	go func() {
-		conf := &Config{}
-
-		c, err := testClient(ctx, ca, conf, true)
-		if err == nil {
-			_ = c.Close()
-		}
-		clientErr <- err
-	}()
-
-	// no server!
-	err := <-clientErr
-	if netErr, ok := err.(net.Error); !ok || !netErr.Timeout() {
-		t.Fatalf("Client error exp(Temporary network error) failed(%v)", err)
-	}
-}
-
-func TestSRTPConfiguration(t *testing.T) {
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	for _, test := range []struct {
-		Name            string
-		ClientSRTP      []SRTPProtectionProfile
-		ServerSRTP      []SRTPProtectionProfile
-		ExpectedProfile SRTPProtectionProfile
-		WantClientError error
-		WantServerError error
-	}{
-		{
-			Name:            "No SRTP in use",
-			ClientSRTP:      nil,
-			ServerSRTP:      nil,
-			ExpectedProfile: 0,
-			WantClientError: nil,
-			WantServerError: nil,
-		},
-		{
-			Name:            "SRTP both ends",
-			ClientSRTP:      []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_80},
-			ServerSRTP:      []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_80},
-			ExpectedProfile: SRTP_AES128_CM_HMAC_SHA1_80,
-			WantClientError: nil,
-			WantServerError: nil,
-		},
-		{
-			Name:            "SRTP client only",
-			ClientSRTP:      []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_80},
-			ServerSRTP:      nil,
-			ExpectedProfile: 0,
-			WantClientError: &errAlert{&alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}},
-			WantServerError: errServerNoMatchingSRTPProfile,
-		},
-		{
-			Name:            "SRTP server only",
-			ClientSRTP:      nil,
-			ServerSRTP:      []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_80},
-			ExpectedProfile: 0,
-			WantClientError: nil,
-			WantServerError: nil,
-		},
-		{
-			Name:            "Multiple Suites",
-			ClientSRTP:      []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_80, SRTP_AES128_CM_HMAC_SHA1_32},
-			ServerSRTP:      []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_80, SRTP_AES128_CM_HMAC_SHA1_32},
-			ExpectedProfile: SRTP_AES128_CM_HMAC_SHA1_80,
-			WantClientError: nil,
-			WantServerError: nil,
-		},
-		{
-			Name:            "Multiple Suites, Client Chooses",
-			ClientSRTP:      []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_80, SRTP_AES128_CM_HMAC_SHA1_32},
-			ServerSRTP:      []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_32, SRTP_AES128_CM_HMAC_SHA1_80},
-			ExpectedProfile: SRTP_AES128_CM_HMAC_SHA1_80,
-			WantClientError: nil,
-			WantServerError: nil,
-		},
-	} {
-		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-		defer cancel()
-
-		ca, cb := dpipe.Pipe()
-		type result struct {
-			c   *Conn
-			err error
-		}
-		c := make(chan result)
-
-		go func() {
-			client, err := testClient(ctx, ca, &Config{SRTPProtectionProfiles: test.ClientSRTP}, true)
-			c <- result{client, err}
-		}()
-
-		server, err := testServer(ctx, cb, &Config{SRTPProtectionProfiles: test.ServerSRTP}, true)
-		if !errors.Is(err, test.WantServerError) {
-			t.Errorf("TestSRTPConfiguration: Server Error Mismatch '%s': expected(%v) actual(%v)", test.Name, test.WantServerError, err)
-		}
-		if err == nil {
-			defer func() {
-				_ = server.Close()
-			}()
-		}
-
-		res := <-c
-		if res.err == nil {
-			defer func() {
-				_ = res.c.Close()
-			}()
-		}
-		if !errors.Is(res.err, test.WantClientError) {
-			t.Fatalf("TestSRTPConfiguration: Client Error Mismatch '%s': expected(%v) actual(%v)", test.Name, test.WantClientError, res.err)
-		}
-		if res.c == nil {
-			return
-		}
-
-		actualClientSRTP, _ := res.c.SelectedSRTPProtectionProfile()
-		if actualClientSRTP != test.ExpectedProfile {
-			t.Errorf("TestSRTPConfiguration: Client SRTPProtectionProfile Mismatch '%s': expected(%v) actual(%v)", test.Name, test.ExpectedProfile, actualClientSRTP)
-		}
-
-		actualServerSRTP, _ := server.SelectedSRTPProtectionProfile()
-		if actualServerSRTP != test.ExpectedProfile {
-			t.Errorf("TestSRTPConfiguration: Server SRTPProtectionProfile Mismatch '%s': expected(%v) actual(%v)", test.Name, test.ExpectedProfile, actualServerSRTP)
-		}
-	}
-}
-
-func TestClientCertificate(t *testing.T) {
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	srvCert, err := selfsign.GenerateSelfSigned()
-	if err != nil {
-		t.Fatal(err)
-	}
-	srvCAPool := x509.NewCertPool()
-	srvCertificate, err := x509.ParseCertificate(srvCert.Certificate[0])
-	if err != nil {
-		t.Fatal(err)
-	}
-	srvCAPool.AddCert(srvCertificate)
-
-	cert, err := selfsign.GenerateSelfSigned()
-	if err != nil {
-		t.Fatal(err)
-	}
-	certificate, err := x509.ParseCertificate(cert.Certificate[0])
-	if err != nil {
-		t.Fatal(err)
-	}
-	caPool := x509.NewCertPool()
-	caPool.AddCert(certificate)
-
-	t.Run("parallel", func(t *testing.T) { // sync routines to check routine leak
-		tests := map[string]struct {
-			clientCfg *Config
-			serverCfg *Config
-			wantErr   bool
-		}{
-			"NoClientCert": {
-				clientCfg: &Config{RootCAs: srvCAPool},
-				serverCfg: &Config{
-					Certificates: []tls.Certificate{srvCert},
-					ClientAuth:   NoClientCert,
-					ClientCAs:    caPool,
-				},
-			},
-			"NoClientCert_cert": {
-				clientCfg: &Config{RootCAs: srvCAPool, Certificates: []tls.Certificate{cert}},
-				serverCfg: &Config{
-					Certificates: []tls.Certificate{srvCert},
-					ClientAuth:   RequireAnyClientCert,
-				},
-			},
-			"RequestClientCert_cert": {
-				clientCfg: &Config{RootCAs: srvCAPool, Certificates: []tls.Certificate{cert}},
-				serverCfg: &Config{
-					Certificates: []tls.Certificate{srvCert},
-					ClientAuth:   RequestClientCert,
-				},
-			},
-			"RequestClientCert_no_cert": {
-				clientCfg: &Config{RootCAs: srvCAPool},
-				serverCfg: &Config{
-					Certificates: []tls.Certificate{srvCert},
-					ClientAuth:   RequestClientCert,
-					ClientCAs:    caPool,
-				},
-			},
-			"RequireAnyClientCert": {
-				clientCfg: &Config{RootCAs: srvCAPool, Certificates: []tls.Certificate{cert}},
-				serverCfg: &Config{
-					Certificates: []tls.Certificate{srvCert},
-					ClientAuth:   RequireAnyClientCert,
-				},
-			},
-			"RequireAnyClientCert_error": {
-				clientCfg: &Config{RootCAs: srvCAPool},
-				serverCfg: &Config{
-					Certificates: []tls.Certificate{srvCert},
-					ClientAuth:   RequireAnyClientCert,
-				},
-				wantErr: true,
-			},
-			"VerifyClientCertIfGiven_no_cert": {
-				clientCfg: &Config{RootCAs: srvCAPool},
-				serverCfg: &Config{
-					Certificates: []tls.Certificate{srvCert},
-					ClientAuth:   VerifyClientCertIfGiven,
-					ClientCAs:    caPool,
-				},
-			},
-			"VerifyClientCertIfGiven_cert": {
-				clientCfg: &Config{RootCAs: srvCAPool, Certificates: []tls.Certificate{cert}},
-				serverCfg: &Config{
-					Certificates: []tls.Certificate{srvCert},
-					ClientAuth:   VerifyClientCertIfGiven,
-					ClientCAs:    caPool,
-				},
-			},
-			"VerifyClientCertIfGiven_error": {
-				clientCfg: &Config{RootCAs: srvCAPool, Certificates: []tls.Certificate{cert}},
-				serverCfg: &Config{
-					Certificates: []tls.Certificate{srvCert},
-					ClientAuth:   VerifyClientCertIfGiven,
-				},
-				wantErr: true,
-			},
-			"RequireAndVerifyClientCert": {
-				clientCfg: &Config{RootCAs: srvCAPool, Certificates: []tls.Certificate{cert}},
-				serverCfg: &Config{
-					Certificates: []tls.Certificate{srvCert},
-					ClientAuth:   RequireAndVerifyClientCert,
-					ClientCAs:    caPool,
-				},
-			},
-		}
-		for name, tt := range tests {
-			tt := tt
-			t.Run(name, func(t *testing.T) {
-				t.Parallel()
-
-				ca, cb := dpipe.Pipe()
-				type result struct {
-					c   *Conn
-					err error
-				}
-				c := make(chan result)
-
-				go func() {
-					client, err := Client(ca, tt.clientCfg)
-					c <- result{client, err}
-				}()
-
-				server, err := Server(cb, tt.serverCfg)
-				res := <-c
-				defer func() {
-					if err == nil {
-						_ = server.Close()
-					}
-					if res.err == nil {
-						_ = res.c.Close()
-					}
-				}()
-
-				if tt.wantErr {
-					if err != nil {
-						// Error expected, test succeeded
-						return
-					}
-					t.Error("Error expected")
-				}
-				if err != nil {
-					t.Errorf("Server failed(%v)", err)
-				}
-
-				if res.err != nil {
-					t.Errorf("Client failed(%v)", res.err)
-				}
-
-				actualClientCert := server.ConnectionState().PeerCertificates
-				if tt.serverCfg.ClientAuth == RequireAnyClientCert || tt.serverCfg.ClientAuth == RequireAndVerifyClientCert {
-					if actualClientCert == nil {
-						t.Errorf("Client did not provide a certificate")
-					}
-
-					if len(actualClientCert) != len(tt.clientCfg.Certificates[0].Certificate) || !bytes.Equal(tt.clientCfg.Certificates[0].Certificate[0], actualClientCert[0]) {
-						t.Errorf("Client certificate was not communicated correctly")
-					}
-				}
-				if tt.serverCfg.ClientAuth == NoClientCert {
-					if actualClientCert != nil {
-						t.Errorf("Client certificate wasn't expected")
-					}
-				}
-
-				actualServerCert := res.c.ConnectionState().PeerCertificates
-				if actualServerCert == nil {
-					t.Errorf("Server did not provide a certificate")
-				}
-
-				if len(actualServerCert) != len(tt.serverCfg.Certificates[0].Certificate) || !bytes.Equal(tt.serverCfg.Certificates[0].Certificate[0], actualServerCert[0]) {
-					t.Errorf("Server certificate was not communicated correctly")
-				}
-			})
-		}
-	})
-}
-
-func TestExtendedMasterSecret(t *testing.T) {
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	tests := map[string]struct {
-		clientCfg         *Config
-		serverCfg         *Config
-		expectedClientErr error
-		expectedServerErr error
-	}{
-		"Request_Request_ExtendedMasterSecret": {
-			clientCfg: &Config{
-				ExtendedMasterSecret: RequestExtendedMasterSecret,
-			},
-			serverCfg: &Config{
-				ExtendedMasterSecret: RequestExtendedMasterSecret,
-			},
-			expectedClientErr: nil,
-			expectedServerErr: nil,
-		},
-		"Request_Require_ExtendedMasterSecret": {
-			clientCfg: &Config{
-				ExtendedMasterSecret: RequestExtendedMasterSecret,
-			},
-			serverCfg: &Config{
-				ExtendedMasterSecret: RequireExtendedMasterSecret,
-			},
-			expectedClientErr: nil,
-			expectedServerErr: nil,
-		},
-		"Request_Disable_ExtendedMasterSecret": {
-			clientCfg: &Config{
-				ExtendedMasterSecret: RequestExtendedMasterSecret,
-			},
-			serverCfg: &Config{
-				ExtendedMasterSecret: DisableExtendedMasterSecret,
-			},
-			expectedClientErr: nil,
-			expectedServerErr: nil,
-		},
-		"Require_Request_ExtendedMasterSecret": {
-			clientCfg: &Config{
-				ExtendedMasterSecret: RequireExtendedMasterSecret,
-			},
-			serverCfg: &Config{
-				ExtendedMasterSecret: RequestExtendedMasterSecret,
-			},
-			expectedClientErr: nil,
-			expectedServerErr: nil,
-		},
-		"Require_Require_ExtendedMasterSecret": {
-			clientCfg: &Config{
-				ExtendedMasterSecret: RequireExtendedMasterSecret,
-			},
-			serverCfg: &Config{
-				ExtendedMasterSecret: RequireExtendedMasterSecret,
-			},
-			expectedClientErr: nil,
-			expectedServerErr: nil,
-		},
-		"Require_Disable_ExtendedMasterSecret": {
-			clientCfg: &Config{
-				ExtendedMasterSecret: RequireExtendedMasterSecret,
-			},
-			serverCfg: &Config{
-				ExtendedMasterSecret: DisableExtendedMasterSecret,
-			},
-			expectedClientErr: errClientRequiredButNoServerEMS,
-			expectedServerErr: &errAlert{&alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}},
-		},
-		"Disable_Request_ExtendedMasterSecret": {
-			clientCfg: &Config{
-				ExtendedMasterSecret: DisableExtendedMasterSecret,
-			},
-			serverCfg: &Config{
-				ExtendedMasterSecret: RequestExtendedMasterSecret,
-			},
-			expectedClientErr: nil,
-			expectedServerErr: nil,
-		},
-		"Disable_Require_ExtendedMasterSecret": {
-			clientCfg: &Config{
-				ExtendedMasterSecret: DisableExtendedMasterSecret,
-			},
-			serverCfg: &Config{
-				ExtendedMasterSecret: RequireExtendedMasterSecret,
-			},
-			expectedClientErr: &errAlert{&alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}},
-			expectedServerErr: errServerRequiredButNoClientEMS,
-		},
-		"Disable_Disable_ExtendedMasterSecret": {
-			clientCfg: &Config{
-				ExtendedMasterSecret: DisableExtendedMasterSecret,
-			},
-			serverCfg: &Config{
-				ExtendedMasterSecret: DisableExtendedMasterSecret,
-			},
-			expectedClientErr: nil,
-			expectedServerErr: nil,
-		},
-	}
-	for name, tt := range tests {
-		tt := tt
-		t.Run(name, func(t *testing.T) {
-			ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-			defer cancel()
-
-			ca, cb := dpipe.Pipe()
-			type result struct {
-				c   *Conn
-				err error
-			}
-			c := make(chan result)
-
-			go func() {
-				client, err := testClient(ctx, ca, tt.clientCfg, true)
-				c <- result{client, err}
-			}()
-
-			server, err := testServer(ctx, cb, tt.serverCfg, true)
-			res := <-c
-			defer func() {
-				if err == nil {
-					_ = server.Close()
-				}
-				if res.err == nil {
-					_ = res.c.Close()
-				}
-			}()
-
-			if !errors.Is(res.err, tt.expectedClientErr) {
-				t.Errorf("Client error expected: \"%v\" but got \"%v\"", tt.expectedClientErr, res.err)
-			}
-
-			if !errors.Is(err, tt.expectedServerErr) {
-				t.Errorf("Server error expected: \"%v\" but got \"%v\"", tt.expectedServerErr, err)
-			}
-		})
-	}
-}
-
-func TestServerCertificate(t *testing.T) {
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	cert, err := selfsign.GenerateSelfSigned()
-	if err != nil {
-		t.Fatal(err)
-	}
-	certificate, err := x509.ParseCertificate(cert.Certificate[0])
-	if err != nil {
-		t.Fatal(err)
-	}
-	caPool := x509.NewCertPool()
-	caPool.AddCert(certificate)
-
-	t.Run("parallel", func(t *testing.T) { // sync routines to check routine leak
-		tests := map[string]struct {
-			clientCfg *Config
-			serverCfg *Config
-			wantErr   bool
-		}{
-			"no_ca": {
-				clientCfg: &Config{},
-				serverCfg: &Config{Certificates: []tls.Certificate{cert}, ClientAuth: NoClientCert},
-				wantErr:   true,
-			},
-			"good_ca": {
-				clientCfg: &Config{RootCAs: caPool},
-				serverCfg: &Config{Certificates: []tls.Certificate{cert}, ClientAuth: NoClientCert},
-			},
-			"no_ca_skip_verify": {
-				clientCfg: &Config{InsecureSkipVerify: true},
-				serverCfg: &Config{Certificates: []tls.Certificate{cert}, ClientAuth: NoClientCert},
-			},
-			"good_ca_skip_verify_custom_verify_peer": {
-				clientCfg: &Config{RootCAs: caPool, Certificates: []tls.Certificate{cert}},
-				serverCfg: &Config{Certificates: []tls.Certificate{cert}, ClientAuth: RequireAnyClientCert, VerifyPeerCertificate: func(cert [][]byte, chain [][]*x509.Certificate) error {
-					if len(chain) != 0 {
-						return errNotExpectedChain
-					}
-					return nil
-				}},
-			},
-			"good_ca_verify_custom_verify_peer": {
-				clientCfg: &Config{RootCAs: caPool, Certificates: []tls.Certificate{cert}},
-				serverCfg: &Config{ClientCAs: caPool, Certificates: []tls.Certificate{cert}, ClientAuth: RequireAndVerifyClientCert, VerifyPeerCertificate: func(cert [][]byte, chain [][]*x509.Certificate) error {
-					if len(chain) == 0 {
-						return errExpecedChain
-					}
-					return nil
-				}},
-			},
-			"good_ca_custom_verify_peer": {
-				clientCfg: &Config{
-					RootCAs: caPool,
-					VerifyPeerCertificate: func([][]byte, [][]*x509.Certificate) error {
-						return errWrongCert
-					},
-				},
-				serverCfg: &Config{Certificates: []tls.Certificate{cert}, ClientAuth: NoClientCert},
-				wantErr:   true,
-			},
-			"server_name": {
-				clientCfg: &Config{RootCAs: caPool, ServerName: certificate.Subject.CommonName},
-				serverCfg: &Config{Certificates: []tls.Certificate{cert}, ClientAuth: NoClientCert},
-			},
-			"server_name_error": {
-				clientCfg: &Config{RootCAs: caPool, ServerName: "barfoo"},
-				serverCfg: &Config{Certificates: []tls.Certificate{cert}, ClientAuth: NoClientCert},
-				wantErr:   true,
-			},
-		}
-		for name, tt := range tests {
-			tt := tt
-			t.Run(name, func(t *testing.T) {
-				t.Parallel()
-
-				ca, cb := dpipe.Pipe()
-
-				type result struct {
-					c   *Conn
-					err error
-				}
-				srvCh := make(chan result)
-				go func() {
-					s, err := Server(cb, tt.serverCfg)
-					srvCh <- result{s, err}
-				}()
-
-				cli, err := Client(ca, tt.clientCfg)
-				if err == nil {
-					_ = cli.Close()
-				}
-				if !tt.wantErr && err != nil {
-					t.Errorf("Client failed(%v)", err)
-				}
-				if tt.wantErr && err == nil {
-					t.Fatal("Error expected")
-				}
-
-				srv := <-srvCh
-				if srv.err == nil {
-					_ = srv.c.Close()
-				}
-			})
-		}
-	})
-}
-
-func TestCipherSuiteConfiguration(t *testing.T) {
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	for _, test := range []struct {
-		Name                    string
-		ClientCipherSuites      []CipherSuiteID
-		ServerCipherSuites      []CipherSuiteID
-		WantClientError         error
-		WantServerError         error
-		WantSelectedCipherSuite CipherSuiteID
-	}{
-		{
-			Name:               "No CipherSuites specified",
-			ClientCipherSuites: nil,
-			ServerCipherSuites: nil,
-			WantClientError:    nil,
-			WantServerError:    nil,
-		},
-		{
-			Name:               "Invalid CipherSuite",
-			ClientCipherSuites: []CipherSuiteID{0x00},
-			ServerCipherSuites: []CipherSuiteID{0x00},
-			WantClientError:    &invalidCipherSuite{0x00},
-			WantServerError:    &invalidCipherSuite{0x00},
-		},
-		{
-			Name:                    "Valid CipherSuites specified",
-			ClientCipherSuites:      []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-			ServerCipherSuites:      []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-			WantClientError:         nil,
-			WantServerError:         nil,
-			WantSelectedCipherSuite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-		},
-		{
-			Name:               "CipherSuites mismatch",
-			ClientCipherSuites: []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-			ServerCipherSuites: []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA},
-			WantClientError:    &errAlert{&alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}},
-			WantServerError:    errCipherSuiteNoIntersection,
-		},
-		{
-			Name:                    "Valid CipherSuites CCM specified",
-			ClientCipherSuites:      []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_CCM},
-			ServerCipherSuites:      []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_CCM},
-			WantClientError:         nil,
-			WantServerError:         nil,
-			WantSelectedCipherSuite: TLS_ECDHE_ECDSA_WITH_AES_128_CCM,
-		},
-		{
-			Name:                    "Valid CipherSuites CCM-8 specified",
-			ClientCipherSuites:      []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8},
-			ServerCipherSuites:      []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8},
-			WantClientError:         nil,
-			WantServerError:         nil,
-			WantSelectedCipherSuite: TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
-		},
-		{
-			Name:                    "Server supports subset of client suites",
-			ClientCipherSuites:      []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA},
-			ServerCipherSuites:      []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA},
-			WantClientError:         nil,
-			WantServerError:         nil,
-			WantSelectedCipherSuite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
-		},
-	} {
-		test := test
-		t.Run(test.Name, func(t *testing.T) {
-			ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-			defer cancel()
-
-			ca, cb := dpipe.Pipe()
-			type result struct {
-				c   *Conn
-				err error
-			}
-			c := make(chan result)
-
-			go func() {
-				client, err := testClient(ctx, ca, &Config{CipherSuites: test.ClientCipherSuites}, true)
-				c <- result{client, err}
-			}()
-
-			server, err := testServer(ctx, cb, &Config{CipherSuites: test.ServerCipherSuites}, true)
-			if err == nil {
-				defer func() {
-					_ = server.Close()
-				}()
-			}
-			if !errors.Is(err, test.WantServerError) {
-				t.Errorf("TestCipherSuiteConfiguration: Server Error Mismatch '%s': expected(%v) actual(%v)", test.Name, test.WantServerError, err)
-			}
-
-			res := <-c
-			if res.err == nil {
-				_ = server.Close()
-			}
-			if !errors.Is(res.err, test.WantClientError) {
-				t.Errorf("TestSRTPConfiguration: Client Error Mismatch '%s': expected(%v) actual(%v)", test.Name, test.WantClientError, res.err)
-			}
-			if test.WantSelectedCipherSuite != 0x00 && res.c.state.cipherSuite.ID() != test.WantSelectedCipherSuite {
-				t.Errorf("TestCipherSuiteConfiguration: Server Selected Bad Cipher Suite '%s': expected(%v) actual(%v)", test.Name, test.WantSelectedCipherSuite, res.c.state.cipherSuite.ID())
-			}
-		})
-	}
-}
-
-func TestCertificateAndPSKServer(t *testing.T) {
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	for _, test := range []struct {
-		Name      string
-		ClientPSK bool
-	}{
-		{
-			Name:      "Client uses PKI",
-			ClientPSK: false,
-		},
-		{
-			Name:      "Client uses PSK",
-			ClientPSK: true,
-		},
-	} {
-		test := test
-		t.Run(test.Name, func(t *testing.T) {
-			ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-			defer cancel()
-
-			ca, cb := dpipe.Pipe()
-			type result struct {
-				c   *Conn
-				err error
-			}
-			c := make(chan result)
-
-			go func() {
-				config := &Config{CipherSuites: []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256}}
-				if test.ClientPSK {
-					config.PSK = func([]byte) ([]byte, error) {
-						return []byte{0x00, 0x01, 0x02}, nil
-					}
-					config.PSKIdentityHint = []byte{0x00}
-					config.CipherSuites = []CipherSuiteID{TLS_PSK_WITH_AES_128_GCM_SHA256}
-				}
-
-				client, err := testClient(ctx, ca, config, false)
-				c <- result{client, err}
-			}()
-
-			config := &Config{
-				CipherSuites: []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_PSK_WITH_AES_128_GCM_SHA256},
-				PSK: func([]byte) ([]byte, error) {
-					return []byte{0x00, 0x01, 0x02}, nil
-				},
-			}
-
-			server, err := testServer(ctx, cb, config, true)
-			if err == nil {
-				defer func() {
-					_ = server.Close()
-				}()
-			} else {
-				t.Errorf("TestCertificateAndPSKServer: Server Error Mismatch '%s': expected(%v) actual(%v)", test.Name, nil, err)
-			}
-
-			res := <-c
-			if res.err == nil {
-				_ = server.Close()
-			} else {
-				t.Errorf("TestCertificateAndPSKServer: Client Error Mismatch '%s': expected(%v) actual(%v)", test.Name, nil, res.err)
-			}
-		})
-	}
-}
-
-func TestPSKConfiguration(t *testing.T) {
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	for _, test := range []struct {
-		Name                 string
-		ClientHasCertificate bool
-		ServerHasCertificate bool
-		ClientPSK            PSKCallback
-		ServerPSK            PSKCallback
-		ClientPSKIdentity    []byte
-		ServerPSKIdentity    []byte
-		WantClientError      error
-		WantServerError      error
-	}{
-		{
-			Name:                 "PSK and no certificate specified",
-			ClientHasCertificate: false,
-			ServerHasCertificate: false,
-			ClientPSK:            func([]byte) ([]byte, error) { return []byte{0x00, 0x01, 0x02}, nil },
-			ServerPSK:            func([]byte) ([]byte, error) { return []byte{0x00, 0x01, 0x02}, nil },
-			ClientPSKIdentity:    []byte{0x00},
-			ServerPSKIdentity:    []byte{0x00},
-			WantClientError:      errNoAvailablePSKCipherSuite,
-			WantServerError:      errNoAvailablePSKCipherSuite,
-		},
-		{
-			Name:                 "PSK and certificate specified",
-			ClientHasCertificate: true,
-			ServerHasCertificate: true,
-			ClientPSK:            func([]byte) ([]byte, error) { return []byte{0x00, 0x01, 0x02}, nil },
-			ServerPSK:            func([]byte) ([]byte, error) { return []byte{0x00, 0x01, 0x02}, nil },
-			ClientPSKIdentity:    []byte{0x00},
-			ServerPSKIdentity:    []byte{0x00},
-			WantClientError:      errNoAvailablePSKCipherSuite,
-			WantServerError:      errNoAvailablePSKCipherSuite,
-		},
-		{
-			Name:                 "PSK and no identity specified",
-			ClientHasCertificate: false,
-			ServerHasCertificate: false,
-			ClientPSK:            func([]byte) ([]byte, error) { return []byte{0x00, 0x01, 0x02}, nil },
-			ServerPSK:            func([]byte) ([]byte, error) { return []byte{0x00, 0x01, 0x02}, nil },
-			ClientPSKIdentity:    nil,
-			ServerPSKIdentity:    nil,
-			WantClientError:      errPSKAndIdentityMustBeSetForClient,
-			WantServerError:      errNoAvailablePSKCipherSuite,
-		},
-		{
-			Name:                 "No PSK and identity specified",
-			ClientHasCertificate: false,
-			ServerHasCertificate: false,
-			ClientPSK:            nil,
-			ServerPSK:            nil,
-			ClientPSKIdentity:    []byte{0x00},
-			ServerPSKIdentity:    []byte{0x00},
-			WantClientError:      errIdentityNoPSK,
-			WantServerError:      errIdentityNoPSK,
-		},
-	} {
-		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-		defer cancel()
-
-		ca, cb := dpipe.Pipe()
-		type result struct {
-			c   *Conn
-			err error
-		}
-		c := make(chan result)
-
-		go func() {
-			client, err := testClient(ctx, ca, &Config{PSK: test.ClientPSK, PSKIdentityHint: test.ClientPSKIdentity}, test.ClientHasCertificate)
-			c <- result{client, err}
-		}()
-
-		_, err := testServer(ctx, cb, &Config{PSK: test.ServerPSK, PSKIdentityHint: test.ServerPSKIdentity}, test.ServerHasCertificate)
-		if err != nil || test.WantServerError != nil {
-			if !(err != nil && test.WantServerError != nil && err.Error() == test.WantServerError.Error()) {
-				t.Fatalf("TestPSKConfiguration: Server Error Mismatch '%s': expected(%v) actual(%v)", test.Name, test.WantServerError, err)
-			}
-		}
-
-		res := <-c
-		if res.err != nil || test.WantClientError != nil {
-			if !(res.err != nil && test.WantClientError != nil && res.err.Error() == test.WantClientError.Error()) {
-				t.Fatalf("TestPSKConfiguration: Client Error Mismatch '%s': expected(%v) actual(%v)", test.Name, test.WantClientError, res.err)
-			}
-		}
-	}
-}
-
-func TestServerTimeout(t *testing.T) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(time.Second * 20)
-	defer lim.Stop()
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	cookie := make([]byte, 20)
-	_, err := rand.Read(cookie)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	var rand [28]byte
-	random := handshake.Random{GMTUnixTime: time.Unix(500, 0), RandomBytes: rand}
-
-	cipherSuites := []CipherSuite{
-		&ciphersuite.TLSEcdheEcdsaWithAes128GcmSha256{},
-		&ciphersuite.TLSEcdheRsaWithAes128GcmSha256{},
-	}
-
-	extensions := []extension.Extension{
-		&extension.SupportedSignatureAlgorithms{
-			SignatureHashAlgorithms: []signaturehash.Algorithm{
-				{Hash: hash.SHA256, Signature: signature.ECDSA},
-				{Hash: hash.SHA384, Signature: signature.ECDSA},
-				{Hash: hash.SHA512, Signature: signature.ECDSA},
-				{Hash: hash.SHA256, Signature: signature.RSA},
-				{Hash: hash.SHA384, Signature: signature.RSA},
-				{Hash: hash.SHA512, Signature: signature.RSA},
-			},
-		},
-		&extension.SupportedEllipticCurves{
-			EllipticCurves: []elliptic.Curve{elliptic.X25519, elliptic.P256, elliptic.P384},
-		},
-		&extension.SupportedPointFormats{
-			PointFormats: []elliptic.CurvePointFormat{elliptic.CurvePointFormatUncompressed},
-		},
-	}
-
-	record := &recordlayer.RecordLayer{
-		Header: recordlayer.Header{
-			SequenceNumber: 0,
-			Version:        protocol.Version1_2,
-		},
-		Content: &handshake.Handshake{
-			// sequenceNumber and messageSequence line up, may need to be re-evaluated
-			Header: handshake.Header{
-				MessageSequence: 0,
-			},
-			Message: &handshake.MessageClientHello{
-				Version:            protocol.Version1_2,
-				Cookie:             cookie,
-				Random:             random,
-				CipherSuiteIDs:     cipherSuiteIDs(cipherSuites),
-				CompressionMethods: defaultCompressionMethods(),
-				Extensions:         extensions,
-			},
-		},
-	}
-
-	packet, err := record.Marshal()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	ca, cb := dpipe.Pipe()
-	defer func() {
-		err := ca.Close()
-		if err != nil {
-			t.Fatal(err)
-		}
-	}()
-
-	// Client reader
-	caReadChan := make(chan []byte, 1000)
-	go func() {
-		for {
-			data := make([]byte, 8192)
-			n, err := ca.Read(data)
-			if err != nil {
-				return
-			}
-
-			caReadChan <- data[:n]
-		}
-	}()
-
-	// Start sending ClientHello packets until server responds with first packet
-	go func() {
-		for {
-			select {
-			case <-time.After(10 * time.Millisecond):
-				_, err := ca.Write(packet)
-				if err != nil {
-					return
-				}
-			case <-caReadChan:
-				// Once we receive the first reply from the server, stop
-				return
-			}
-		}
-	}()
-
-	ctx, cancel := context.WithTimeout(context.Background(), 50*time.Millisecond)
-	defer cancel()
-
-	config := &Config{
-		CipherSuites:   []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-		FlightInterval: 100 * time.Millisecond,
-	}
-
-	_, serverErr := testServer(ctx, cb, config, true)
-	if netErr, ok := serverErr.(net.Error); !ok || !netErr.Timeout() {
-		t.Fatalf("Client error exp(Temporary network error) failed(%v)", serverErr)
-	}
-
-	// Wait a little longer to ensure no additional messages have been sent by the server
-	time.Sleep(300 * time.Millisecond)
-	select {
-	case msg := <-caReadChan:
-		t.Fatalf("Expected no additional messages from server, got: %+v", msg)
-	default:
-	}
-}
-
-func TestProtocolVersionValidation(t *testing.T) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(time.Second * 20)
-	defer lim.Stop()
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	cookie := make([]byte, 20)
-	if _, err := rand.Read(cookie); err != nil {
-		t.Fatal(err)
-	}
-
-	var rand [28]byte
-	random := handshake.Random{GMTUnixTime: time.Unix(500, 0), RandomBytes: rand}
-
-	localKeypair, err := elliptic.GenerateKeypair(elliptic.X25519)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	config := &Config{
-		CipherSuites:   []CipherSuiteID{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-		FlightInterval: 100 * time.Millisecond,
-	}
-
-	t.Run("Server", func(t *testing.T) {
-		serverCases := map[string]struct {
-			records []*recordlayer.RecordLayer
-		}{
-			"ClientHelloVersion": {
-				records: []*recordlayer.RecordLayer{
-					{
-						Header: recordlayer.Header{
-							Version: protocol.Version1_2,
-						},
-						Content: &handshake.Handshake{
-							Message: &handshake.MessageClientHello{
-								Version:            protocol.Version{Major: 0xfe, Minor: 0xff}, // try to downgrade
-								Cookie:             cookie,
-								Random:             random,
-								CipherSuiteIDs:     []uint16{uint16((&ciphersuite.TLSEcdheEcdsaWithAes128GcmSha256{}).ID())},
-								CompressionMethods: defaultCompressionMethods(),
-							},
-						},
-					},
-				},
-			},
-			"SecondsClientHelloVersion": {
-				records: []*recordlayer.RecordLayer{
-					{
-						Header: recordlayer.Header{
-							Version: protocol.Version1_2,
-						},
-						Content: &handshake.Handshake{
-							Message: &handshake.MessageClientHello{
-								Version:            protocol.Version1_2,
-								Cookie:             cookie,
-								Random:             random,
-								CipherSuiteIDs:     []uint16{uint16((&ciphersuite.TLSEcdheEcdsaWithAes128GcmSha256{}).ID())},
-								CompressionMethods: defaultCompressionMethods(),
-							},
-						},
-					},
-					{
-						Header: recordlayer.Header{
-							Version:        protocol.Version1_2,
-							SequenceNumber: 1,
-						},
-						Content: &handshake.Handshake{
-							Header: handshake.Header{
-								MessageSequence: 1,
-							},
-							Message: &handshake.MessageClientHello{
-								Version:            protocol.Version{Major: 0xfe, Minor: 0xff}, // try to downgrade
-								Cookie:             cookie,
-								Random:             random,
-								CipherSuiteIDs:     []uint16{uint16((&ciphersuite.TLSEcdheEcdsaWithAes128GcmSha256{}).ID())},
-								CompressionMethods: defaultCompressionMethods(),
-							},
-						},
-					},
-				},
-			},
-		}
-		for name, c := range serverCases {
-			c := c
-			t.Run(name, func(t *testing.T) {
-				ca, cb := dpipe.Pipe()
-				defer func() {
-					err := ca.Close()
-					if err != nil {
-						t.Error(err)
-					}
-				}()
-
-				ctx, cancel := context.WithTimeout(context.Background(), time.Second)
-				defer cancel()
-
-				var wg sync.WaitGroup
-				wg.Add(1)
-				defer wg.Wait()
-				go func() {
-					defer wg.Done()
-					if _, err := testServer(ctx, cb, config, true); !errors.Is(err, errUnsupportedProtocolVersion) {
-						t.Errorf("Client error exp(%v) failed(%v)", errUnsupportedProtocolVersion, err)
-					}
-				}()
-
-				time.Sleep(50 * time.Millisecond)
-
-				resp := make([]byte, 1024)
-				for _, record := range c.records {
-					packet, err := record.Marshal()
-					if err != nil {
-						t.Fatal(err)
-					}
-					if _, werr := ca.Write(packet); werr != nil {
-						t.Fatal(werr)
-					}
-					n, rerr := ca.Read(resp[:cap(resp)])
-					if rerr != nil {
-						t.Fatal(rerr)
-					}
-					resp = resp[:n]
-				}
-
-				h := &recordlayer.Header{}
-				if err := h.Unmarshal(resp); err != nil {
-					t.Fatal("Failed to unmarshal response")
-				}
-				if h.ContentType != protocol.ContentTypeAlert {
-					t.Errorf("Peer must return alert to unsupported protocol version")
-				}
-			})
-		}
-	})
-
-	t.Run("Client", func(t *testing.T) {
-		clientCases := map[string]struct {
-			records []*recordlayer.RecordLayer
-		}{
-			"ServerHelloVersion": {
-				records: []*recordlayer.RecordLayer{
-					{
-						Header: recordlayer.Header{
-							Version: protocol.Version1_2,
-						},
-						Content: &handshake.Handshake{
-							Message: &handshake.MessageHelloVerifyRequest{
-								Version: protocol.Version1_2,
-								Cookie:  cookie,
-							},
-						},
-					},
-					{
-						Header: recordlayer.Header{
-							Version:        protocol.Version1_2,
-							SequenceNumber: 1,
-						},
-						Content: &handshake.Handshake{
-							Header: handshake.Header{
-								MessageSequence: 1,
-							},
-							Message: &handshake.MessageServerHello{
-								Version:           protocol.Version{Major: 0xfe, Minor: 0xff}, // try to downgrade
-								Random:            random,
-								CipherSuiteID:     func() *uint16 { id := uint16(TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256); return &id }(),
-								CompressionMethod: defaultCompressionMethods()[0],
-							},
-						},
-					},
-					{
-						Header: recordlayer.Header{
-							Version:        protocol.Version1_2,
-							SequenceNumber: 2,
-						},
-						Content: &handshake.Handshake{
-							Header: handshake.Header{
-								MessageSequence: 2,
-							},
-							Message: &handshake.MessageCertificate{},
-						},
-					},
-					{
-						Header: recordlayer.Header{
-							Version:        protocol.Version1_2,
-							SequenceNumber: 3,
-						},
-						Content: &handshake.Handshake{
-							Header: handshake.Header{
-								MessageSequence: 3,
-							},
-							Message: &handshake.MessageServerKeyExchange{
-								EllipticCurveType:  elliptic.CurveTypeNamedCurve,
-								NamedCurve:         elliptic.X25519,
-								PublicKey:          localKeypair.PublicKey,
-								HashAlgorithm:      hash.SHA256,
-								SignatureAlgorithm: signature.ECDSA,
-								Signature:          make([]byte, 64),
-							},
-						},
-					},
-					{
-						Header: recordlayer.Header{
-							Version:        protocol.Version1_2,
-							SequenceNumber: 4,
-						},
-						Content: &handshake.Handshake{
-							Header: handshake.Header{
-								MessageSequence: 4,
-							},
-							Message: &handshake.MessageServerHelloDone{},
-						},
-					},
-				},
-			},
-		}
-		for name, c := range clientCases {
-			c := c
-			t.Run(name, func(t *testing.T) {
-				ca, cb := dpipe.Pipe()
-				defer func() {
-					err := ca.Close()
-					if err != nil {
-						t.Error(err)
-					}
-				}()
-
-				ctx, cancel := context.WithTimeout(context.Background(), time.Second)
-				defer cancel()
-
-				var wg sync.WaitGroup
-				wg.Add(1)
-				defer wg.Wait()
-				go func() {
-					defer wg.Done()
-					if _, err := testClient(ctx, cb, config, true); !errors.Is(err, errUnsupportedProtocolVersion) {
-						t.Errorf("Server error exp(%v) failed(%v)", errUnsupportedProtocolVersion, err)
-					}
-				}()
-
-				time.Sleep(50 * time.Millisecond)
-
-				for _, record := range c.records {
-					if _, err := ca.Read(make([]byte, 1024)); err != nil {
-						t.Fatal(err)
-					}
-
-					packet, err := record.Marshal()
-					if err != nil {
-						t.Fatal(err)
-					}
-					if _, err := ca.Write(packet); err != nil {
-						t.Fatal(err)
-					}
-				}
-				resp := make([]byte, 1024)
-				n, err := ca.Read(resp)
-				if err != nil {
-					t.Fatal(err)
-				}
-				resp = resp[:n]
-
-				h := &recordlayer.Header{}
-				if err := h.Unmarshal(resp); err != nil {
-					t.Fatal("Failed to unmarshal response")
-				}
-				if h.ContentType != protocol.ContentTypeAlert {
-					t.Errorf("Peer must return alert to unsupported protocol version")
-				}
-			})
-		}
-	})
-}
-
-func TestMultipleHelloVerifyRequest(t *testing.T) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(time.Second * 20)
-	defer lim.Stop()
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	cookies := [][]byte{
-		// first clientHello contains an empty cookie
-		{},
-	}
-	var packets [][]byte
-	for i := 0; i < 2; i++ {
-		cookie := make([]byte, 20)
-		if _, err := rand.Read(cookie); err != nil {
-			t.Fatal(err)
-		}
-		cookies = append(cookies, cookie)
-
-		record := &recordlayer.RecordLayer{
-			Header: recordlayer.Header{
-				SequenceNumber: uint64(i),
-				Version:        protocol.Version1_2,
-			},
-			Content: &handshake.Handshake{
-				Header: handshake.Header{
-					MessageSequence: uint16(i),
-				},
-				Message: &handshake.MessageHelloVerifyRequest{
-					Version: protocol.Version1_2,
-					Cookie:  cookie,
-				},
-			},
-		}
-		packet, err := record.Marshal()
-		if err != nil {
-			t.Fatal(err)
-		}
-		packets = append(packets, packet)
-	}
-
-	ca, cb := dpipe.Pipe()
-	defer func() {
-		err := ca.Close()
-		if err != nil {
-			t.Error(err)
-		}
-	}()
-
-	ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
-	defer cancel()
-
-	var wg sync.WaitGroup
-	wg.Add(1)
-	defer wg.Wait()
-	go func() {
-		defer wg.Done()
-		_, _ = testClient(ctx, ca, &Config{}, false)
-	}()
-
-	for i, cookie := range cookies {
-		// read client hello
-		resp := make([]byte, 1024)
-		n, err := cb.Read(resp)
-		if err != nil {
-			t.Fatal(err)
-		}
-		record := &recordlayer.RecordLayer{}
-		if err := record.Unmarshal(resp[:n]); err != nil {
-			t.Fatal(err)
-		}
-		clientHello := record.Content.(*handshake.Handshake).Message.(*handshake.MessageClientHello)
-		if !bytes.Equal(clientHello.Cookie, cookie) {
-			t.Fatalf("Wrong cookie, expected: %x, got: %x", clientHello.Cookie, cookie)
-		}
-		if len(packets) <= i {
-			break
-		}
-		// write hello verify request
-		if _, err := cb.Write(packets[i]); err != nil {
-			t.Fatal(err)
-		}
-	}
-	cancel()
-}
-
-// Assert that a DTLS Server always responds with RenegotiationInfo if
-// a ClientHello contained that extension or not
-func TestRenegotationInfo(t *testing.T) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(10 * time.Second)
-	defer lim.Stop()
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	resp := make([]byte, 1024)
-
-	for _, testCase := range []struct {
-		Name                  string
-		SendRenegotiationInfo bool
-	}{
-		{
-			"Include RenegotiationInfo",
-			true,
-		},
-		{
-			"No RenegotiationInfo",
-			false,
-		},
-	} {
-		test := testCase
-		t.Run(test.Name, func(t *testing.T) {
-			sendClientHello := func(cookie []byte, ca net.Conn, sequenceNumber uint64) {
-				extensions := []extension.Extension{}
-				if test.SendRenegotiationInfo {
-					extensions = append(extensions, &extension.RenegotiationInfo{
-						RenegotiatedConnection: 0,
-					})
-				}
-
-				packet, err := (&recordlayer.RecordLayer{
-					Header: recordlayer.Header{
-						Version:        protocol.Version1_2,
-						SequenceNumber: sequenceNumber,
-					},
-					Content: &handshake.Handshake{
-						Header: handshake.Header{
-							MessageSequence: uint16(sequenceNumber),
-						},
-						Message: &handshake.MessageClientHello{
-							Version:            protocol.Version1_2,
-							Cookie:             cookie,
-							CipherSuiteIDs:     cipherSuiteIDs(defaultCipherSuites()),
-							CompressionMethods: defaultCompressionMethods(),
-							Extensions:         extensions,
-						},
-					},
-				}).Marshal()
-				if err != nil {
-					t.Fatal(err)
-				}
-
-				if _, err = ca.Write(packet); err != nil {
-					t.Fatal(err)
-				}
-			}
-
-			ca, cb := dpipe.Pipe()
-			defer func() {
-				if err := ca.Close(); err != nil {
-					t.Error(err)
-				}
-			}()
-
-			ctx, cancel := context.WithCancel(context.Background())
-			defer cancel()
-
-			go func() {
-				if _, err := testServer(ctx, cb, &Config{}, true); !errors.Is(err, context.Canceled) {
-					t.Error(err)
-				}
-			}()
-
-			time.Sleep(50 * time.Millisecond)
-
-			sendClientHello([]byte{}, ca, 0)
-			n, err := ca.Read(resp)
-			if err != nil {
-				t.Fatal(err)
-			}
-			r := &recordlayer.RecordLayer{}
-			if err = r.Unmarshal(resp[:n]); err != nil {
-				t.Fatal(err)
-			}
-
-			helloVerifyRequest := r.Content.(*handshake.Handshake).Message.(*handshake.MessageHelloVerifyRequest)
-
-			sendClientHello(helloVerifyRequest.Cookie, ca, 1)
-			if n, err = ca.Read(resp); err != nil {
-				t.Fatal(err)
-			}
-
-			messages, err := recordlayer.UnpackDatagram(resp[:n])
-			if err != nil {
-				t.Fatal(err)
-			}
-
-			if err := r.Unmarshal(messages[0]); err != nil {
-				t.Fatal(err)
-			}
-
-			serverHello := r.Content.(*handshake.Handshake).Message.(*handshake.MessageServerHello)
-			gotNegotationInfo := false
-			for _, v := range serverHello.Extensions {
-				if _, ok := v.(*extension.RenegotiationInfo); ok {
-					gotNegotationInfo = true
-				}
-			}
-
-			if !gotNegotationInfo {
-				t.Fatalf("Received ServerHello without RenegotiationInfo")
-			}
-		})
-	}
-}
diff --git a/anylink/dtls-2.0.9/crypto.go b/anylink/dtls-2.0.9/crypto.go
deleted file mode 100644
index 768ee47..0000000
--- a/anylink/dtls-2.0.9/crypto.go
+++ /dev/null
@@ -1,221 +0,0 @@
-package dtls
-
-import (
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/ed25519"
-	"crypto/rand"
-	"crypto/rsa"
-	"crypto/sha256"
-	"crypto/x509"
-	"encoding/asn1"
-	"encoding/binary"
-	"math/big"
-	"time"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-)
-
-type ecdsaSignature struct {
-	R, S *big.Int
-}
-
-func valueKeyMessage(clientRandom, serverRandom, publicKey []byte, namedCurve elliptic.Curve) []byte {
-	serverECDHParams := make([]byte, 4)
-	serverECDHParams[0] = 3 // named curve
-	binary.BigEndian.PutUint16(serverECDHParams[1:], uint16(namedCurve))
-	serverECDHParams[3] = byte(len(publicKey))
-
-	plaintext := []byte{}
-	plaintext = append(plaintext, clientRandom...)
-	plaintext = append(plaintext, serverRandom...)
-	plaintext = append(plaintext, serverECDHParams...)
-	plaintext = append(plaintext, publicKey...)
-
-	return plaintext
-}
-
-// If the client provided a "signature_algorithms" extension, then all
-// certificates provided by the server MUST be signed by a
-// hash/signature algorithm pair that appears in that extension
-//
-// https://tools.ietf.org/html/rfc5246#section-7.4.2
-func generateKeySignature(clientRandom, serverRandom, publicKey []byte, namedCurve elliptic.Curve, privateKey crypto.PrivateKey, hashAlgorithm hash.Algorithm) ([]byte, error) {
-	msg := valueKeyMessage(clientRandom, serverRandom, publicKey, namedCurve)
-	switch p := privateKey.(type) {
-	case ed25519.PrivateKey:
-		// https://crypto.stackexchange.com/a/55483
-		return p.Sign(rand.Reader, msg, crypto.Hash(0))
-	case *ecdsa.PrivateKey:
-		hashed := hashAlgorithm.Digest(msg)
-		return p.Sign(rand.Reader, hashed, hashAlgorithm.CryptoHash())
-	case *rsa.PrivateKey:
-		hashed := hashAlgorithm.Digest(msg)
-		return p.Sign(rand.Reader, hashed, hashAlgorithm.CryptoHash())
-	}
-
-	return nil, errKeySignatureGenerateUnimplemented
-}
-
-func verifyKeySignature(message, remoteKeySignature []byte, hashAlgorithm hash.Algorithm, rawCertificates [][]byte) error { //nolint:dupl
-	if len(rawCertificates) == 0 {
-		return errLengthMismatch
-	}
-	certificate, err := x509.ParseCertificate(rawCertificates[0])
-	if err != nil {
-		return err
-	}
-
-	switch p := certificate.PublicKey.(type) {
-	case ed25519.PublicKey:
-		if ok := ed25519.Verify(p, message, remoteKeySignature); !ok {
-			return errKeySignatureMismatch
-		}
-		return nil
-	case *ecdsa.PublicKey:
-		ecdsaSig := &ecdsaSignature{}
-		if _, err := asn1.Unmarshal(remoteKeySignature, ecdsaSig); err != nil {
-			return err
-		}
-		if ecdsaSig.R.Sign() <= 0 || ecdsaSig.S.Sign() <= 0 {
-			return errInvalidECDSASignature
-		}
-		hashed := hashAlgorithm.Digest(message)
-		if !ecdsa.Verify(p, hashed, ecdsaSig.R, ecdsaSig.S) {
-			return errKeySignatureMismatch
-		}
-		return nil
-	case *rsa.PublicKey:
-		switch certificate.SignatureAlgorithm {
-		case x509.SHA1WithRSA, x509.SHA256WithRSA, x509.SHA384WithRSA, x509.SHA512WithRSA:
-			hashed := hashAlgorithm.Digest(message)
-			return rsa.VerifyPKCS1v15(p, hashAlgorithm.CryptoHash(), hashed, remoteKeySignature)
-		default:
-			return errKeySignatureVerifyUnimplemented
-		}
-	}
-
-	return errKeySignatureVerifyUnimplemented
-}
-
-// If the server has sent a CertificateRequest message, the client MUST send the Certificate
-// message.  The ClientKeyExchange message is now sent, and the content
-// of that message will depend on the public key algorithm selected
-// between the ClientHello and the ServerHello.  If the client has sent
-// a certificate with signing ability, a digitally-signed
-// CertificateVerify message is sent to explicitly verify possession of
-// the private key in the certificate.
-// https://tools.ietf.org/html/rfc5246#section-7.3
-func generateCertificateVerify(handshakeBodies []byte, privateKey crypto.PrivateKey, hashAlgorithm hash.Algorithm) ([]byte, error) {
-	h := sha256.New()
-	if _, err := h.Write(handshakeBodies); err != nil {
-		return nil, err
-	}
-	hashed := h.Sum(nil)
-
-	switch p := privateKey.(type) {
-	case ed25519.PrivateKey:
-		// https://crypto.stackexchange.com/a/55483
-		return p.Sign(rand.Reader, hashed, crypto.Hash(0))
-	case *ecdsa.PrivateKey:
-		return p.Sign(rand.Reader, hashed, hashAlgorithm.CryptoHash())
-	case *rsa.PrivateKey:
-		return p.Sign(rand.Reader, hashed, hashAlgorithm.CryptoHash())
-	}
-
-	return nil, errInvalidSignatureAlgorithm
-}
-
-func verifyCertificateVerify(handshakeBodies []byte, hashAlgorithm hash.Algorithm, remoteKeySignature []byte, rawCertificates [][]byte) error { //nolint:dupl
-	if len(rawCertificates) == 0 {
-		return errLengthMismatch
-	}
-	certificate, err := x509.ParseCertificate(rawCertificates[0])
-	if err != nil {
-		return err
-	}
-
-	switch p := certificate.PublicKey.(type) {
-	case ed25519.PublicKey:
-		if ok := ed25519.Verify(p, handshakeBodies, remoteKeySignature); !ok {
-			return errKeySignatureMismatch
-		}
-		return nil
-	case *ecdsa.PublicKey:
-		ecdsaSig := &ecdsaSignature{}
-		if _, err := asn1.Unmarshal(remoteKeySignature, ecdsaSig); err != nil {
-			return err
-		}
-		if ecdsaSig.R.Sign() <= 0 || ecdsaSig.S.Sign() <= 0 {
-			return errInvalidECDSASignature
-		}
-		hash := hashAlgorithm.Digest(handshakeBodies)
-		if !ecdsa.Verify(p, hash, ecdsaSig.R, ecdsaSig.S) {
-			return errKeySignatureMismatch
-		}
-		return nil
-	case *rsa.PublicKey:
-		switch certificate.SignatureAlgorithm {
-		case x509.SHA1WithRSA, x509.SHA256WithRSA, x509.SHA384WithRSA, x509.SHA512WithRSA:
-			hash := hashAlgorithm.Digest(handshakeBodies)
-			return rsa.VerifyPKCS1v15(p, hashAlgorithm.CryptoHash(), hash, remoteKeySignature)
-		default:
-			return errKeySignatureVerifyUnimplemented
-		}
-	}
-
-	return errKeySignatureVerifyUnimplemented
-}
-
-func loadCerts(rawCertificates [][]byte) ([]*x509.Certificate, error) {
-	if len(rawCertificates) == 0 {
-		return nil, errLengthMismatch
-	}
-
-	certs := make([]*x509.Certificate, 0, len(rawCertificates))
-	for _, rawCert := range rawCertificates {
-		cert, err := x509.ParseCertificate(rawCert)
-		if err != nil {
-			return nil, err
-		}
-		certs = append(certs, cert)
-	}
-	return certs, nil
-}
-
-func verifyClientCert(rawCertificates [][]byte, roots *x509.CertPool) (chains [][]*x509.Certificate, err error) {
-	certificate, err := loadCerts(rawCertificates)
-	if err != nil {
-		return nil, err
-	}
-	intermediateCAPool := x509.NewCertPool()
-	for _, cert := range certificate[1:] {
-		intermediateCAPool.AddCert(cert)
-	}
-	opts := x509.VerifyOptions{
-		Roots:         roots,
-		CurrentTime:   time.Now(),
-		Intermediates: intermediateCAPool,
-		KeyUsages:     []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth},
-	}
-	return certificate[0].Verify(opts)
-}
-
-func verifyServerCert(rawCertificates [][]byte, roots *x509.CertPool, serverName string) (chains [][]*x509.Certificate, err error) {
-	certificate, err := loadCerts(rawCertificates)
-	if err != nil {
-		return nil, err
-	}
-	intermediateCAPool := x509.NewCertPool()
-	for _, cert := range certificate[1:] {
-		intermediateCAPool.AddCert(cert)
-	}
-	opts := x509.VerifyOptions{
-		Roots:         roots,
-		CurrentTime:   time.Now(),
-		DNSName:       serverName,
-		Intermediates: intermediateCAPool,
-	}
-	return certificate[0].Verify(opts)
-}
diff --git a/anylink/dtls-2.0.9/crypto_test.go b/anylink/dtls-2.0.9/crypto_test.go
deleted file mode 100644
index 03b714d..0000000
--- a/anylink/dtls-2.0.9/crypto_test.go
+++ /dev/null
@@ -1,73 +0,0 @@
-package dtls
-
-import (
-	"bytes"
-	"crypto/x509"
-	"encoding/pem"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-)
-
-const rawPrivateKey = `
------BEGIN RSA PRIVATE KEY-----
-MIIEowIBAAKCAQEAxIA2BrrnR2sIlATsp7aRBD/3krwZ7vt9dNeoDQAee0s6SuYP
-6MBx/HPnAkwNvPS90R05a7pwRkoT6Ur4PfPhCVlUe8lV+0Eto3ZSEeHz3HdsqlM3
-bso67L7Dqrc7MdVstlKcgJi8yeAoGOIL9/igOv0XBFCeznm9nznx6mnsR5cugw+1
-ypXelaHmBCLV7r5SeVSh57+KhvZGbQ2fFpUaTPegRpJZXBNS8lSeWvtOv9d6N5UB
-ROTAJodMZT5AfX0jB0QB9IT/0I96H6BSENH08NXOeXApMuLKvnAf361rS7cRAfRL
-rWZqERMP4u6Cnk0Cnckc3WcW27kGGIbtwbqUIQIDAQABAoIBAGF7OVIdZp8Hejn0
-N3L8HvT8xtUEe9kS6ioM0lGgvX5s035Uo4/T6LhUx0VcdXRH9eLHnLTUyN4V4cra
-ZkxVsE3zAvZl60G6E+oDyLMWZOP6Wu4kWlub9597A5atT7BpMIVCdmFVZFLB4SJ3
-AXkC3nplFAYP+Lh1rJxRIrIn2g+pEeBboWbYA++oDNuMQffDZaokTkJ8Bn1JZYh0
-xEXKY8Bi2Egd5NMeZa1UFO6y8tUbZfwgVs6Enq5uOgtfayq79vZwyjj1kd29MBUD
-8g8byV053ZKxbUOiOuUts97eb+fN3DIDRTcT2c+lXt/4C54M1FclJAbtYRK/qwsl
-pYWKQAECgYEA4ZUbqQnTo1ICvj81ifGrz+H4LKQqe92Hbf/W51D/Umk2kP702W22
-HP4CvrJRtALThJIG9m2TwUjl/WAuZIBrhSAbIvc3Fcoa2HjdRp+sO5U1ueDq7d/S
-Z+PxRI8cbLbRpEdIaoR46qr/2uWZ943PHMv9h4VHPYn1w8b94hwD6vkCgYEA3v87
-mFLzyM9ercnEv9zHMRlMZFQhlcUGQZvfb8BuJYl/WogyT6vRrUuM0QXULNEPlrin
-mBQTqc1nCYbgkFFsD2VVt1qIyiAJsB9MD1LNV6YuvE7T2KOSadmsA4fa9PUqbr71
-hf3lTTq+LeR09LebO7WgSGYY+5YKVOEGpYMR1GkCgYEAxPVQmk3HKHEhjgRYdaG5
-lp9A9ZE8uruYVJWtiHgzBTxx9TV2iST+fd/We7PsHFTfY3+wbpcMDBXfIVRKDVwH
-BMwchXH9+Ztlxx34bYJaegd0SmA0Hw9ugWEHNgoSEmWpM1s9wir5/ELjc7dGsFtz
-uzvsl9fpdLSxDYgAAdzeGtkCgYBAzKIgrVox7DBzB8KojhtD5ToRnXD0+H/M6OKQ
-srZPKhlb0V/tTtxrIx0UUEFLlKSXA6mPw6XDHfDnD86JoV9pSeUSlrhRI+Ysy6tq
-eIE7CwthpPZiaYXORHZ7wCqcK/HcpJjsCs9rFbrV0yE5S3FMdIbTAvgXg44VBB7O
-UbwIoQKBgDuY8gSrA5/A747wjjmsdRWK4DMTMEV4eCW1BEP7Tg7Cxd5n3xPJiYhr
-nhLGN+mMnVIcv2zEMS0/eNZr1j/0BtEdx+3IC6Eq+ONY0anZ4Irt57/5QeKgKn/L
-JPhfPySIPG4UmwE4gW8t79vfOKxnUu2fDD1ZXUYopan6EckACNH/
------END RSA PRIVATE KEY-----
-`
-
-func TestGenerateKeySignature(t *testing.T) {
-	block, _ := pem.Decode([]byte(rawPrivateKey))
-	key, err := x509.ParsePKCS1PrivateKey(block.Bytes)
-	if err != nil {
-		t.Error(err)
-	}
-
-	clientRandom := []byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f}
-	serverRandom := []byte{0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f}
-	publicKey := []byte{0x20, 0x9f, 0xd7, 0xad, 0x6d, 0xcf, 0xf4, 0x29, 0x8d, 0xd3, 0xf9, 0x6d, 0x5b, 0x1b, 0x2a, 0xf9, 0x10, 0xa0, 0x53, 0x5b, 0x14, 0x88, 0xd7, 0xf8, 0xfa, 0xbb, 0x34, 0x9a, 0x98, 0x28, 0x80, 0xb6, 0x15}
-	expectedSignature := []byte{
-		0x6f, 0x47, 0x97, 0x85, 0xcc, 0x76, 0x50, 0x93, 0xbd, 0xe2, 0x6a, 0x69, 0x0b, 0xc3, 0x03, 0xd1, 0xb7, 0xe4, 0xab, 0x88, 0x7b, 0xa6, 0x52, 0x80, 0xdf,
-		0xaa, 0x25, 0x7a, 0xdb, 0x29, 0x32, 0xe4, 0xd8, 0x28, 0x28, 0xb3, 0xe8, 0x04, 0x3c, 0x38, 0x16, 0xfc, 0x78, 0xe9, 0x15, 0x7b, 0xc5, 0xbd, 0x7d, 0xfc,
-		0xcd, 0x83, 0x00, 0x57, 0x4a, 0x3c, 0x23, 0x85, 0x75, 0x6b, 0x37, 0xd5, 0x89, 0x72, 0x73, 0xf0, 0x44, 0x8c, 0x00, 0x70, 0x1f, 0x6e, 0xa2, 0x81, 0xd0,
-		0x09, 0xc5, 0x20, 0x36, 0xab, 0x23, 0x09, 0x40, 0x1f, 0x4d, 0x45, 0x96, 0x62, 0xbb, 0x81, 0xb0, 0x30, 0x72, 0xad, 0x3a, 0x0a, 0xac, 0x31, 0x63, 0x40,
-		0x52, 0x0a, 0x27, 0xf3, 0x34, 0xde, 0x27, 0x7d, 0xb7, 0x54, 0xff, 0x0f, 0x9f, 0x5a, 0xfe, 0x07, 0x0f, 0x4e, 0x9f, 0x53, 0x04, 0x34, 0x62, 0xf4, 0x30,
-		0x74, 0x83, 0x35, 0xfc, 0xe4, 0x7e, 0xbf, 0x5a, 0xc4, 0x52, 0xd0, 0xea, 0xf9, 0x61, 0x4e, 0xf5, 0x1c, 0x0e, 0x58, 0x02, 0x71, 0xfb, 0x1f, 0x34, 0x55,
-		0xe8, 0x36, 0x70, 0x3c, 0xc1, 0xcb, 0xc9, 0xb7, 0xbb, 0xb5, 0x1c, 0x44, 0x9a, 0x6d, 0x88, 0x78, 0x98, 0xd4, 0x91, 0x2e, 0xeb, 0x98, 0x81, 0x23, 0x30,
-		0x73, 0x39, 0x43, 0xd5, 0xbb, 0x70, 0x39, 0xba, 0x1f, 0xdb, 0x70, 0x9f, 0x91, 0x83, 0x56, 0xc2, 0xde, 0xed, 0x17, 0x6d, 0x2c, 0x3e, 0x21, 0xea, 0x36,
-		0xb4, 0x91, 0xd8, 0x31, 0x05, 0x60, 0x90, 0xfd, 0xc6, 0x74, 0xa9, 0x7b, 0x18, 0xfc, 0x1c, 0x6a, 0x1c, 0x6e, 0xec, 0xd3, 0xc1, 0xc0, 0x0d, 0x11, 0x25,
-		0x48, 0x37, 0x3d, 0x45, 0x11, 0xa2, 0x31, 0x14, 0x0a, 0x66, 0x9f, 0xd8, 0xac, 0x74, 0xa2, 0xcd, 0xc8, 0x79, 0xb3, 0x9e, 0xc6, 0x66, 0x25, 0xcf, 0x2c,
-		0x87, 0x5e, 0x5c, 0x36, 0x75, 0x86,
-	}
-
-	signature, err := generateKeySignature(clientRandom, serverRandom, publicKey, elliptic.X25519, key, hash.SHA256)
-	if err != nil {
-		t.Error(err)
-	} else if !bytes.Equal(expectedSignature, signature) {
-		t.Errorf("Signature generation failed \nexp % 02x \nactual % 02x ", expectedSignature, signature)
-	}
-}
diff --git a/anylink/dtls-2.0.9/dtls.go b/anylink/dtls-2.0.9/dtls.go
deleted file mode 100644
index 125b904..0000000
--- a/anylink/dtls-2.0.9/dtls.go
+++ /dev/null
@@ -1,2 +0,0 @@
-// Package dtls implements Datagram Transport Layer Security (DTLS) 1.2
-package dtls
diff --git a/anylink/dtls-2.0.9/e2e/Dockerfile b/anylink/dtls-2.0.9/e2e/Dockerfile
deleted file mode 100644
index 7166fbc..0000000
--- a/anylink/dtls-2.0.9/e2e/Dockerfile
+++ /dev/null
@@ -1,11 +0,0 @@
-FROM golang:1.14-alpine3.11
-
-RUN apk add --no-cache \
-  openssl
-
-ENV CGO_ENABLED=0
-
-COPY . /go/src/github.com/pion/dtls
-WORKDIR /go/src/github.com/pion/dtls/e2e
-
-CMD ["go", "test", "-tags=openssl", "-v", "."]
diff --git a/anylink/dtls-2.0.9/e2e/e2e.go b/anylink/dtls-2.0.9/e2e/e2e.go
deleted file mode 100644
index 1a2b024..0000000
--- a/anylink/dtls-2.0.9/e2e/e2e.go
+++ /dev/null
@@ -1,2 +0,0 @@
-// Package e2e contains end to end tests for pion/dtls
-package e2e
diff --git a/anylink/dtls-2.0.9/e2e/e2e_lossy_test.go b/anylink/dtls-2.0.9/e2e/e2e_lossy_test.go
deleted file mode 100644
index 92a4074..0000000
--- a/anylink/dtls-2.0.9/e2e/e2e_lossy_test.go
+++ /dev/null
@@ -1,207 +0,0 @@
-package e2e
-
-import (
-	"crypto/tls"
-	"fmt"
-	"math/rand"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2"
-	"github.com/pion/dtls/v2/pkg/crypto/selfsign"
-	transportTest "github.com/pion/transport/test"
-)
-
-const (
-	flightInterval   = time.Millisecond * 100
-	lossyTestTimeout = 30 * time.Second
-)
-
-/*
-  DTLS Client/Server over a lossy transport, just asserts it can handle at increasing increments
-*/
-func TestPionE2ELossy(t *testing.T) {
-	// Check for leaking routines
-	report := transportTest.CheckRoutines(t)
-	defer report()
-
-	type runResult struct {
-		dtlsConn *dtls.Conn
-		err      error
-	}
-
-	serverCert, err := selfsign.GenerateSelfSigned()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	clientCert, err := selfsign.GenerateSelfSigned()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	for _, test := range []struct {
-		LossChanceRange int
-		DoClientAuth    bool
-		CipherSuites    []dtls.CipherSuiteID
-		MTU             int
-	}{
-		{
-			LossChanceRange: 0,
-		},
-		{
-			LossChanceRange: 10,
-		},
-		{
-			LossChanceRange: 20,
-		},
-		{
-			LossChanceRange: 50,
-		},
-		{
-			LossChanceRange: 0,
-			DoClientAuth:    true,
-		},
-		{
-			LossChanceRange: 10,
-			DoClientAuth:    true,
-		},
-		{
-			LossChanceRange: 20,
-			DoClientAuth:    true,
-		},
-		{
-			LossChanceRange: 50,
-			DoClientAuth:    true,
-		},
-		{
-			LossChanceRange: 0,
-			CipherSuites:    []dtls.CipherSuiteID{dtls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA},
-		},
-		{
-			LossChanceRange: 10,
-			CipherSuites:    []dtls.CipherSuiteID{dtls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA},
-		},
-		{
-			LossChanceRange: 20,
-			CipherSuites:    []dtls.CipherSuiteID{dtls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA},
-		},
-		{
-			LossChanceRange: 50,
-			CipherSuites:    []dtls.CipherSuiteID{dtls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA},
-		},
-		{
-			LossChanceRange: 10,
-			MTU:             100,
-			DoClientAuth:    true,
-		},
-		{
-			LossChanceRange: 20,
-			MTU:             100,
-			DoClientAuth:    true,
-		},
-		{
-			LossChanceRange: 50,
-			MTU:             100,
-			DoClientAuth:    true,
-		},
-	} {
-		name := fmt.Sprintf("Loss%d_MTU%d", test.LossChanceRange, test.MTU)
-		if test.DoClientAuth {
-			name += "_WithCliAuth"
-		}
-		for _, ciph := range test.CipherSuites {
-			name += "_With" + ciph.String()
-		}
-		test := test
-		t.Run(name, func(t *testing.T) {
-			// Limit runtime in case of deadlocks
-			lim := transportTest.TimeOut(lossyTestTimeout + time.Second)
-			defer lim.Stop()
-
-			rand.Seed(time.Now().UTC().UnixNano())
-			chosenLoss := rand.Intn(9) + test.LossChanceRange //nolint:gosec
-			serverDone := make(chan runResult)
-			clientDone := make(chan runResult)
-			br := transportTest.NewBridge()
-
-			if err = br.SetLossChance(chosenLoss); err != nil {
-				t.Fatal(err)
-			}
-
-			go func() {
-				cfg := &dtls.Config{
-					FlightInterval:     flightInterval,
-					CipherSuites:       test.CipherSuites,
-					InsecureSkipVerify: true,
-					MTU:                test.MTU,
-				}
-
-				if test.DoClientAuth {
-					cfg.Certificates = []tls.Certificate{clientCert}
-				}
-
-				client, startupErr := dtls.Client(br.GetConn0(), cfg)
-				clientDone <- runResult{client, startupErr}
-			}()
-
-			go func() {
-				cfg := &dtls.Config{
-					Certificates:   []tls.Certificate{serverCert},
-					FlightInterval: flightInterval,
-					MTU:            test.MTU,
-				}
-
-				if test.DoClientAuth {
-					cfg.ClientAuth = dtls.RequireAnyClientCert
-				}
-
-				server, startupErr := dtls.Server(br.GetConn1(), cfg)
-				serverDone <- runResult{server, startupErr}
-			}()
-
-			testTimer := time.NewTimer(lossyTestTimeout)
-			var serverConn, clientConn *dtls.Conn
-			defer func() {
-				if serverConn != nil {
-					if err = serverConn.Close(); err != nil {
-						t.Error(err)
-					}
-				}
-				if clientConn != nil {
-					if err = clientConn.Close(); err != nil {
-						t.Error(err)
-					}
-				}
-			}()
-
-			for {
-				if serverConn != nil && clientConn != nil {
-					break
-				}
-
-				br.Tick()
-				select {
-				case serverResult := <-serverDone:
-					if serverResult.err != nil {
-						t.Errorf("Fail, serverError: clientComplete(%t) serverComplete(%t) LossChance(%d) error(%v)", clientConn != nil, serverConn != nil, chosenLoss, serverResult.err)
-						return
-					}
-
-					serverConn = serverResult.dtlsConn
-				case clientResult := <-clientDone:
-					if clientResult.err != nil {
-						t.Errorf("Fail, clientError: clientComplete(%t) serverComplete(%t) LossChance(%d) error(%v)", clientConn != nil, serverConn != nil, chosenLoss, clientResult.err)
-						return
-					}
-
-					clientConn = clientResult.dtlsConn
-				case <-testTimer.C:
-					t.Errorf("Test expired: clientComplete(%t) serverComplete(%t) LossChance(%d)", clientConn != nil, serverConn != nil, chosenLoss)
-					return
-				case <-time.After(10 * time.Millisecond):
-				}
-			}
-		})
-	}
-}
diff --git a/anylink/dtls-2.0.9/e2e/e2e_openssl_test.go b/anylink/dtls-2.0.9/e2e/e2e_openssl_test.go
deleted file mode 100644
index fd2e60f..0000000
--- a/anylink/dtls-2.0.9/e2e/e2e_openssl_test.go
+++ /dev/null
@@ -1,250 +0,0 @@
-// +build openssl,!js
-
-package e2e
-
-import (
-	"crypto/x509"
-	"encoding/pem"
-	"errors"
-	"fmt"
-	"io/ioutil"
-	"net"
-	"os"
-	"os/exec"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2"
-)
-
-func serverOpenSSL(c *comm) {
-	go func() {
-		c.serverMutex.Lock()
-		defer c.serverMutex.Unlock()
-
-		cfg := c.serverConfig
-
-		// create openssl arguments
-		args := []string{
-			"s_server",
-			"-dtls1_2",
-			"-quiet",
-			"-verify_quiet",
-			"-verify_return_error",
-			fmt.Sprintf("-accept=%d", c.serverPort),
-		}
-		ciphers := ciphersOpenSSL(cfg)
-		if ciphers != "" {
-			args = append(args, fmt.Sprintf("-cipher=%s", ciphers))
-		}
-
-		// psk arguments
-		if cfg.PSK != nil {
-			psk, err := cfg.PSK(nil)
-			if err != nil {
-				c.errChan <- err
-				return
-			}
-			args = append(args, fmt.Sprintf("-psk=%X", psk))
-			if len(cfg.PSKIdentityHint) > 0 {
-				args = append(args, fmt.Sprintf("-psk_hint=%s", cfg.PSKIdentityHint))
-			}
-		}
-
-		// certs arguments
-		if len(cfg.Certificates) > 0 {
-			// create temporary cert files
-			certPEM, keyPEM, err := writeTempPEM(cfg)
-			if err != nil {
-				c.errChan <- err
-				return
-			}
-			args = append(args,
-				fmt.Sprintf("-cert=%s", certPEM),
-				fmt.Sprintf("-key=%s", keyPEM))
-			defer func() {
-				_ = os.Remove(certPEM)
-				_ = os.Remove(keyPEM)
-			}()
-		} else {
-			args = append(args, "-nocert")
-		}
-
-		// launch command
-		// #nosec G204
-		cmd := exec.CommandContext(c.ctx, "openssl", args...)
-		var inner net.Conn
-		inner, c.serverConn = net.Pipe()
-		cmd.Stdin = inner
-		cmd.Stdout = inner
-		cmd.Stderr = os.Stderr
-		if err := cmd.Start(); err != nil {
-			c.errChan <- err
-			_ = inner.Close()
-			return
-		}
-
-		// Ensure that server has started
-		time.Sleep(500 * time.Millisecond)
-
-		c.serverReady <- struct{}{}
-		simpleReadWrite(c.errChan, c.serverChan, c.serverConn, c.messageRecvCount)
-	}()
-}
-
-func clientOpenSSL(c *comm) {
-	select {
-	case <-c.serverReady:
-		// OK
-	case <-time.After(time.Second):
-		c.errChan <- errors.New("waiting on serverReady err: timeout")
-	}
-
-	c.clientMutex.Lock()
-	defer c.clientMutex.Unlock()
-
-	cfg := c.clientConfig
-
-	// create openssl arguments
-	args := []string{
-		"s_client",
-		"-dtls1_2",
-		"-quiet",
-		"-verify_quiet",
-		"-verify_return_error",
-		"-servername=localhost",
-		fmt.Sprintf("-connect=127.0.0.1:%d", c.serverPort),
-	}
-	ciphers := ciphersOpenSSL(cfg)
-	if ciphers != "" {
-		args = append(args, fmt.Sprintf("-cipher=%s", ciphers))
-	}
-
-	// psk arguments
-	if cfg.PSK != nil {
-		psk, err := cfg.PSK(nil)
-		if err != nil {
-			c.errChan <- err
-			return
-		}
-		args = append(args, fmt.Sprintf("-psk=%X", psk))
-	}
-
-	// certificate arguments
-	if len(cfg.Certificates) > 0 {
-		// create temporary cert files
-		certPEM, keyPEM, err := writeTempPEM(cfg)
-		if err != nil {
-			c.errChan <- err
-			return
-		}
-		args = append(args, fmt.Sprintf("-CAfile=%s", certPEM))
-		defer func() {
-			_ = os.Remove(certPEM)
-			_ = os.Remove(keyPEM)
-		}()
-	}
-
-	// launch command
-	// #nosec G204
-	cmd := exec.CommandContext(c.ctx, "openssl", args...)
-	var inner net.Conn
-	inner, c.clientConn = net.Pipe()
-	cmd.Stdin = inner
-	cmd.Stdout = inner
-	cmd.Stderr = os.Stderr
-	if err := cmd.Start(); err != nil {
-		c.errChan <- err
-		_ = inner.Close()
-		return
-	}
-
-	simpleReadWrite(c.errChan, c.clientChan, c.clientConn, c.messageRecvCount)
-}
-
-func ciphersOpenSSL(cfg *dtls.Config) string {
-	// See https://tls.mbed.org/supported-ssl-ciphersuites
-	translate := map[dtls.CipherSuiteID]string{
-		dtls.TLS_ECDHE_ECDSA_WITH_AES_128_CCM:        "ECDHE-ECDSA-AES128-CCM",
-		dtls.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8:      "ECDHE-ECDSA-AES128-CCM8",
-		dtls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256: "ECDHE-ECDSA-AES128-GCM-SHA256",
-		dtls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256:   "ECDHE-RSA-AES128-GCM-SHA256",
-
-		dtls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA: "ECDHE-ECDSA-AES256-SHA",
-		dtls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA:   "ECDHE-RSA-AES128-SHA",
-
-		dtls.TLS_PSK_WITH_AES_128_CCM:        "PSK-AES128-CCM",
-		dtls.TLS_PSK_WITH_AES_128_CCM_8:      "PSK-AES128-CCM8",
-		dtls.TLS_PSK_WITH_AES_128_GCM_SHA256: "PSK-AES128-GCM-SHA256",
-	}
-
-	var ciphers []string
-	for _, c := range cfg.CipherSuites {
-		if text, ok := translate[c]; ok {
-			ciphers = append(ciphers, text)
-		}
-	}
-	return strings.Join(ciphers, ";")
-}
-
-func writeTempPEM(cfg *dtls.Config) (string, string, error) {
-	certOut, err := ioutil.TempFile("", "cert.pem")
-	if err != nil {
-		return "", "", fmt.Errorf("failed to create temporary file: %w", err)
-	}
-	keyOut, err := ioutil.TempFile("", "key.pem")
-	if err != nil {
-		return "", "", fmt.Errorf("failed to create temporary file: %w", err)
-	}
-
-	cert := cfg.Certificates[0]
-	derBytes := cert.Certificate[0]
-	if err = pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes}); err != nil {
-		return "", "", fmt.Errorf("failed to write data to cert.pem: %w", err)
-	}
-	if err = certOut.Close(); err != nil {
-		return "", "", fmt.Errorf("error closing cert.pem: %w", err)
-	}
-
-	priv := cert.PrivateKey
-	var privBytes []byte
-	privBytes, err = x509.MarshalPKCS8PrivateKey(priv)
-	if err != nil {
-		return "", "", fmt.Errorf("unable to marshal private key: %w", err)
-	}
-	if err = pem.Encode(keyOut, &pem.Block{Type: "PRIVATE KEY", Bytes: privBytes}); err != nil {
-		return "", "", fmt.Errorf("failed to write data to key.pem: %w", err)
-	}
-	if err = keyOut.Close(); err != nil {
-		return "", "", fmt.Errorf("error closing key.pem: %w", err)
-	}
-	return certOut.Name(), keyOut.Name(), nil
-}
-
-func TestPionOpenSSLE2ESimple(t *testing.T) {
-	t.Run("OpenSSLServer", func(t *testing.T) {
-		testPionE2ESimple(t, serverOpenSSL, clientPion)
-	})
-	t.Run("OpenSSLClient", func(t *testing.T) {
-		testPionE2ESimple(t, serverPion, clientOpenSSL)
-	})
-}
-
-func TestPionOpenSSLE2ESimplePSK(t *testing.T) {
-	t.Run("OpenSSLServer", func(t *testing.T) {
-		testPionE2ESimplePSK(t, serverOpenSSL, clientPion)
-	})
-	t.Run("OpenSSLClient", func(t *testing.T) {
-		testPionE2ESimplePSK(t, serverPion, clientOpenSSL)
-	})
-}
-
-func TestPionOpenSSLE2EMTUs(t *testing.T) {
-	t.Run("OpenSSLServer", func(t *testing.T) {
-		testPionE2EMTUs(t, serverOpenSSL, clientPion)
-	})
-	t.Run("OpenSSLClient", func(t *testing.T) {
-		testPionE2EMTUs(t, serverPion, clientOpenSSL)
-	})
-}
diff --git a/anylink/dtls-2.0.9/e2e/e2e_openssl_v113_test.go b/anylink/dtls-2.0.9/e2e/e2e_openssl_v113_test.go
deleted file mode 100644
index 1d947b6..0000000
--- a/anylink/dtls-2.0.9/e2e/e2e_openssl_v113_test.go
+++ /dev/null
@@ -1,17 +0,0 @@
-// +build openssl,go1.13,!js
-
-package e2e
-
-import (
-	"testing"
-)
-
-func TestPionOpenSSLE2ESimpleED25519(t *testing.T) {
-	t.Skip("TODO: waiting OpenSSL's DTLS Ed25519 support")
-	t.Run("OpenSSLServer", func(t *testing.T) {
-		testPionE2ESimpleED25519(t, serverOpenSSL, clientPion)
-	})
-	t.Run("OpenSSLClient", func(t *testing.T) {
-		testPionE2ESimpleED25519(t, serverPion, clientOpenSSL)
-	})
-}
diff --git a/anylink/dtls-2.0.9/e2e/e2e_test.go b/anylink/dtls-2.0.9/e2e/e2e_test.go
deleted file mode 100644
index 1a77b3b..0000000
--- a/anylink/dtls-2.0.9/e2e/e2e_test.go
+++ /dev/null
@@ -1,329 +0,0 @@
-// +build !js
-
-package e2e
-
-import (
-	"context"
-	"crypto/tls"
-	"errors"
-	"fmt"
-	"io"
-	"net"
-	"sync"
-	"sync/atomic"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2"
-	"github.com/pion/dtls/v2/pkg/crypto/selfsign"
-	"github.com/pion/transport/test"
-)
-
-const (
-	testMessage   = "Hello World"
-	testTimeLimit = 5 * time.Second
-	messageRetry  = 200 * time.Millisecond
-)
-
-var errServerTimeout = errors.New("waiting on serverReady err: timeout")
-
-func randomPort(t testing.TB) int {
-	t.Helper()
-	conn, err := net.ListenPacket("udp4", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("failed to pickPort: %v", err)
-	}
-	defer func() {
-		_ = conn.Close()
-	}()
-	switch addr := conn.LocalAddr().(type) {
-	case *net.UDPAddr:
-		return addr.Port
-	default:
-		t.Fatalf("unknown addr type %T", addr)
-		return 0
-	}
-}
-
-func simpleReadWrite(errChan chan error, outChan chan string, conn io.ReadWriter, messageRecvCount *uint64) {
-	go func() {
-		buffer := make([]byte, 8192)
-		n, err := conn.Read(buffer)
-		if err != nil {
-			errChan <- err
-			return
-		}
-
-		outChan <- string(buffer[:n])
-		atomic.AddUint64(messageRecvCount, 1)
-	}()
-
-	for {
-		if atomic.LoadUint64(messageRecvCount) == 2 {
-			break
-		} else if _, err := conn.Write([]byte(testMessage)); err != nil {
-			errChan <- err
-			break
-		}
-
-		time.Sleep(messageRetry)
-	}
-}
-
-type comm struct {
-	ctx                        context.Context
-	clientConfig, serverConfig *dtls.Config
-	serverPort                 int
-	messageRecvCount           *uint64 // Counter to make sure both sides got a message
-	clientMutex                *sync.Mutex
-	clientConn                 net.Conn
-	serverMutex                *sync.Mutex
-	serverConn                 net.Conn
-	serverListener             net.Listener
-	serverReady                chan struct{}
-	errChan                    chan error
-	clientChan                 chan string
-	serverChan                 chan string
-	client                     func(*comm)
-	server                     func(*comm)
-}
-
-func newComm(ctx context.Context, clientConfig, serverConfig *dtls.Config, serverPort int, server, client func(*comm)) *comm {
-	messageRecvCount := uint64(0)
-	c := &comm{
-		ctx:              ctx,
-		clientConfig:     clientConfig,
-		serverConfig:     serverConfig,
-		serverPort:       serverPort,
-		messageRecvCount: &messageRecvCount,
-		clientMutex:      &sync.Mutex{},
-		serverMutex:      &sync.Mutex{},
-		serverReady:      make(chan struct{}),
-		errChan:          make(chan error),
-		clientChan:       make(chan string),
-		serverChan:       make(chan string),
-		server:           server,
-		client:           client,
-	}
-	return c
-}
-
-func (c *comm) assert(t *testing.T) {
-	// DTLS Client
-	go c.client(c)
-
-	// DTLS Server
-	go c.server(c)
-
-	defer func() {
-		if c.clientConn != nil {
-			if err := c.clientConn.Close(); err != nil {
-				t.Fatal(err)
-			}
-		}
-		if c.serverConn != nil {
-			if err := c.serverConn.Close(); err != nil {
-				t.Fatal(err)
-			}
-		}
-		if c.serverListener != nil {
-			if err := c.serverListener.Close(); err != nil {
-				t.Fatal(err)
-			}
-		}
-	}()
-
-	func() {
-		seenClient, seenServer := false, false
-		for {
-			select {
-			case err := <-c.errChan:
-				t.Fatal(err)
-			case <-time.After(testTimeLimit):
-				t.Fatalf("Test timeout, seenClient %t seenServer %t", seenClient, seenServer)
-			case clientMsg := <-c.clientChan:
-				if clientMsg != testMessage {
-					t.Fatalf("clientMsg does not equal test message: %s %s", clientMsg, testMessage)
-				}
-
-				seenClient = true
-				if seenClient && seenServer {
-					return
-				}
-			case serverMsg := <-c.serverChan:
-				if serverMsg != testMessage {
-					t.Fatalf("serverMsg does not equal test message: %s %s", serverMsg, testMessage)
-				}
-
-				seenServer = true
-				if seenClient && seenServer {
-					return
-				}
-			}
-		}
-	}()
-}
-
-func clientPion(c *comm) {
-	select {
-	case <-c.serverReady:
-		// OK
-	case <-time.After(time.Second):
-		c.errChan <- errServerTimeout
-	}
-
-	c.clientMutex.Lock()
-	defer c.clientMutex.Unlock()
-
-	var err error
-	c.clientConn, err = dtls.DialWithContext(c.ctx, "udp",
-		&net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: c.serverPort},
-		c.clientConfig,
-	)
-	if err != nil {
-		c.errChan <- err
-		return
-	}
-
-	simpleReadWrite(c.errChan, c.clientChan, c.clientConn, c.messageRecvCount)
-}
-
-func serverPion(c *comm) {
-	c.serverMutex.Lock()
-	defer c.serverMutex.Unlock()
-
-	var err error
-	c.serverListener, err = dtls.Listen("udp",
-		&net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: c.serverPort},
-		c.serverConfig,
-	)
-	if err != nil {
-		c.errChan <- err
-		return
-	}
-	c.serverReady <- struct{}{}
-	c.serverConn, err = c.serverListener.Accept()
-	if err != nil {
-		c.errChan <- err
-		return
-	}
-
-	simpleReadWrite(c.errChan, c.serverChan, c.serverConn, c.messageRecvCount)
-}
-
-/*
-  Simple DTLS Client/Server can communicate
-    - Assert that you can send messages both ways
-	- Assert that Close() on both ends work
-	- Assert that no Goroutines are leaked
-*/
-func testPionE2ESimple(t *testing.T, server, client func(*comm)) {
-	lim := test.TimeOut(time.Second * 30)
-	defer lim.Stop()
-
-	report := test.CheckRoutines(t)
-	defer report()
-
-	for _, cipherSuite := range []dtls.CipherSuiteID{
-		dtls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-		dtls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
-	} {
-		cipherSuite := cipherSuite
-		t.Run(cipherSuite.String(), func(t *testing.T) {
-			ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
-			defer cancel()
-
-			cert, err := selfsign.GenerateSelfSignedWithDNS("localhost")
-			if err != nil {
-				t.Fatal(err)
-			}
-
-			cfg := &dtls.Config{
-				Certificates:       []tls.Certificate{cert},
-				CipherSuites:       []dtls.CipherSuiteID{cipherSuite},
-				InsecureSkipVerify: true,
-			}
-			serverPort := randomPort(t)
-			comm := newComm(ctx, cfg, cfg, serverPort, server, client)
-			comm.assert(t)
-		})
-	}
-}
-
-func testPionE2ESimplePSK(t *testing.T, server, client func(*comm)) {
-	lim := test.TimeOut(time.Second * 30)
-	defer lim.Stop()
-
-	report := test.CheckRoutines(t)
-	defer report()
-
-	for _, cipherSuite := range []dtls.CipherSuiteID{
-		dtls.TLS_PSK_WITH_AES_128_CCM,
-		dtls.TLS_PSK_WITH_AES_128_CCM_8,
-		dtls.TLS_PSK_WITH_AES_128_GCM_SHA256,
-	} {
-		cipherSuite := cipherSuite
-		t.Run(cipherSuite.String(), func(t *testing.T) {
-			ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
-			defer cancel()
-
-			cfg := &dtls.Config{
-				PSK: func(hint []byte) ([]byte, error) {
-					return []byte{0xAB, 0xC1, 0x23}, nil
-				},
-				PSKIdentityHint: []byte{0x01, 0x02, 0x03, 0x04, 0x05},
-				CipherSuites:    []dtls.CipherSuiteID{cipherSuite},
-			}
-			serverPort := randomPort(t)
-			comm := newComm(ctx, cfg, cfg, serverPort, server, client)
-			comm.assert(t)
-		})
-	}
-}
-
-func testPionE2EMTUs(t *testing.T, server, client func(*comm)) {
-	lim := test.TimeOut(time.Second * 30)
-	defer lim.Stop()
-
-	report := test.CheckRoutines(t)
-	defer report()
-
-	for _, mtu := range []int{
-		10000,
-		1000,
-		100,
-	} {
-		mtu := mtu
-		t.Run(fmt.Sprintf("MTU%d", mtu), func(t *testing.T) {
-			ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-			defer cancel()
-
-			cert, err := selfsign.GenerateSelfSignedWithDNS("localhost")
-			if err != nil {
-				t.Fatal(err)
-			}
-
-			cfg := &dtls.Config{
-				Certificates:       []tls.Certificate{cert},
-				CipherSuites:       []dtls.CipherSuiteID{dtls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
-				InsecureSkipVerify: true,
-				MTU:                mtu,
-			}
-			serverPort := randomPort(t)
-			comm := newComm(ctx, cfg, cfg, serverPort, server, client)
-			comm.assert(t)
-		})
-	}
-}
-
-func TestPionE2ESimple(t *testing.T) {
-	testPionE2ESimple(t, serverPion, clientPion)
-}
-
-func TestPionE2ESimplePSK(t *testing.T) {
-	testPionE2ESimplePSK(t, serverPion, clientPion)
-}
-
-func TestPionE2EMTUs(t *testing.T) {
-	testPionE2EMTUs(t, serverPion, clientPion)
-}
diff --git a/anylink/dtls-2.0.9/e2e/e2e_v113_test.go b/anylink/dtls-2.0.9/e2e/e2e_v113_test.go
deleted file mode 100644
index 5d7243f..0000000
--- a/anylink/dtls-2.0.9/e2e/e2e_v113_test.go
+++ /dev/null
@@ -1,62 +0,0 @@
-// +build go1.13,!js
-
-package e2e
-
-import (
-	"context"
-	"crypto/ed25519"
-	"crypto/rand"
-	"crypto/tls"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2"
-	"github.com/pion/dtls/v2/pkg/crypto/selfsign"
-	"github.com/pion/transport/test"
-)
-
-// ED25519 is not supported in Go 1.12 crypto/x509.
-// Once Go 1.12 is deprecated, move this test to e2e_test.go.
-
-func testPionE2ESimpleED25519(t *testing.T, server, client func(*comm)) {
-	lim := test.TimeOut(time.Second * 30)
-	defer lim.Stop()
-
-	report := test.CheckRoutines(t)
-	defer report()
-
-	for _, cipherSuite := range []dtls.CipherSuiteID{
-		dtls.TLS_ECDHE_ECDSA_WITH_AES_128_CCM,
-		dtls.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
-		dtls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-		dtls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
-	} {
-		cipherSuite := cipherSuite
-		t.Run(cipherSuite.String(), func(t *testing.T) {
-			ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
-			defer cancel()
-
-			_, key, err := ed25519.GenerateKey(rand.Reader)
-			if err != nil {
-				t.Fatal(err)
-			}
-			cert, err := selfsign.SelfSign(key)
-			if err != nil {
-				t.Fatal(err)
-			}
-
-			cfg := &dtls.Config{
-				Certificates:       []tls.Certificate{cert},
-				CipherSuites:       []dtls.CipherSuiteID{cipherSuite},
-				InsecureSkipVerify: true,
-			}
-			serverPort := randomPort(t)
-			comm := newComm(ctx, cfg, cfg, serverPort, server, client)
-			comm.assert(t)
-		})
-	}
-}
-
-func TestPionE2ESimpleED25519(t *testing.T) {
-	testPionE2ESimpleED25519(t, serverPion, clientPion)
-}
diff --git a/anylink/dtls-2.0.9/errors.go b/anylink/dtls-2.0.9/errors.go
deleted file mode 100644
index 2e16388..0000000
--- a/anylink/dtls-2.0.9/errors.go
+++ /dev/null
@@ -1,141 +0,0 @@
-package dtls
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"io"
-	"net"
-	"os"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-	"golang.org/x/xerrors"
-)
-
-// Typed errors
-var (
-	ErrConnClosed = &FatalError{Err: errors.New("conn is closed")} //nolint:goerr113
-
-	errDeadlineExceeded   = &TimeoutError{Err: xerrors.Errorf("read/write timeout: %w", context.DeadlineExceeded)}
-	errInvalidContentType = &TemporaryError{Err: errors.New("invalid content type")} //nolint:goerr113
-
-	errBufferTooSmall               = &TemporaryError{Err: errors.New("buffer is too small")}                                        //nolint:goerr113
-	errContextUnsupported           = &TemporaryError{Err: errors.New("context is not supported for ExportKeyingMaterial")}          //nolint:goerr113
-	errHandshakeInProgress          = &TemporaryError{Err: errors.New("handshake is in progress")}                                   //nolint:goerr113
-	errReservedExportKeyingMaterial = &TemporaryError{Err: errors.New("ExportKeyingMaterial can not be used with a reserved label")} //nolint:goerr113
-	errApplicationDataEpochZero     = &TemporaryError{Err: errors.New("ApplicationData with epoch of 0")}                            //nolint:goerr113
-	errUnhandledContextType         = &TemporaryError{Err: errors.New("unhandled contentType")}                                      //nolint:goerr113
-
-	errCertificateVerifyNoCertificate    = &FatalError{Err: errors.New("client sent certificate verify but we have no certificate to verify")}                      //nolint:goerr113
-	errCipherSuiteNoIntersection         = &FatalError{Err: errors.New("client+server do not support any shared cipher suites")}                                    //nolint:goerr113
-	errClientCertificateNotVerified      = &FatalError{Err: errors.New("client sent certificate but did not verify it")}                                            //nolint:goerr113
-	errClientCertificateRequired         = &FatalError{Err: errors.New("server required client verification, but got none")}                                        //nolint:goerr113
-	errClientNoMatchingSRTPProfile       = &FatalError{Err: errors.New("server responded with SRTP Profile we do not support")}                                     //nolint:goerr113
-	errClientRequiredButNoServerEMS      = &FatalError{Err: errors.New("client required Extended Master Secret extension, but server does not support it")}         //nolint:goerr113
-	errCookieMismatch                    = &FatalError{Err: errors.New("client+server cookie does not match")}                                                      //nolint:goerr113
-	errIdentityNoPSK                     = &FatalError{Err: errors.New("PSK Identity Hint provided but PSK is nil")}                                                //nolint:goerr113
-	errInvalidCertificate                = &FatalError{Err: errors.New("no certificate provided")}                                                                  //nolint:goerr113
-	errInvalidCipherSuite                = &FatalError{Err: errors.New("invalid or unknown cipher suite")}                                                          //nolint:goerr113
-	errInvalidECDSASignature             = &FatalError{Err: errors.New("ECDSA signature contained zero or negative values")}                                        //nolint:goerr113
-	errInvalidPrivateKey                 = &FatalError{Err: errors.New("invalid private key type")}                                                                 //nolint:goerr113
-	errInvalidSignatureAlgorithm         = &FatalError{Err: errors.New("invalid signature algorithm")}                                                              //nolint:goerr113
-	errKeySignatureMismatch              = &FatalError{Err: errors.New("expected and actual key signature do not match")}                                           //nolint:goerr113
-	errNilNextConn                       = &FatalError{Err: errors.New("Conn can not be created with a nil nextConn")}                                              //nolint:goerr113
-	errNoAvailableCipherSuites           = &FatalError{Err: errors.New("connection can not be created, no CipherSuites satisfy this Config")}                       //nolint:goerr113
-	errNoAvailablePSKCipherSuite         = &FatalError{Err: errors.New("connection can not be created, pre-shared key present but no compatible CipherSuite")}      //nolint:goerr113
-	errNoAvailableCertificateCipherSuite = &FatalError{Err: errors.New("connection can not be created, certificate present but no compatible CipherSuite")}         //nolint:goerr113
-	errNoAvailableSignatureSchemes       = &FatalError{Err: errors.New("connection can not be created, no SignatureScheme satisfy this Config")}                    //nolint:goerr113
-	errNoCertificates                    = &FatalError{Err: errors.New("no certificates configured")}                                                               //nolint:goerr113
-	errNoConfigProvided                  = &FatalError{Err: errors.New("no config provided")}                                                                       //nolint:goerr113
-	errNoSupportedEllipticCurves         = &FatalError{Err: errors.New("client requested zero or more elliptic curves that are not supported by the server")}       //nolint:goerr113
-	errUnsupportedProtocolVersion        = &FatalError{Err: errors.New("unsupported protocol version")}                                                             //nolint:goerr113
-	errPSKAndIdentityMustBeSetForClient  = &FatalError{Err: errors.New("PSK and PSK Identity Hint must both be set for client")}                                    //nolint:goerr113
-	errRequestedButNoSRTPExtension       = &FatalError{Err: errors.New("SRTP support was requested but server did not respond with use_srtp extension")}            //nolint:goerr113
-	errServerNoMatchingSRTPProfile       = &FatalError{Err: errors.New("client requested SRTP but we have no matching profiles")}                                   //nolint:goerr113
-	errServerRequiredButNoClientEMS      = &FatalError{Err: errors.New("server requires the Extended Master Secret extension, but the client does not support it")} //nolint:goerr113
-	errVerifyDataMismatch                = &FatalError{Err: errors.New("expected and actual verify data does not match")}                                           //nolint:goerr113
-
-	errInvalidFlight                     = &InternalError{Err: errors.New("invalid flight number")}                           //nolint:goerr113
-	errKeySignatureGenerateUnimplemented = &InternalError{Err: errors.New("unable to generate key signature, unimplemented")} //nolint:goerr113
-	errKeySignatureVerifyUnimplemented   = &InternalError{Err: errors.New("unable to verify key signature, unimplemented")}   //nolint:goerr113
-	errLengthMismatch                    = &InternalError{Err: errors.New("data length and declared length do not match")}    //nolint:goerr113
-	errSequenceNumberOverflow            = &InternalError{Err: errors.New("sequence number overflow")}                        //nolint:goerr113
-	errInvalidFSMTransition              = &InternalError{Err: errors.New("invalid state machine transition")}                //nolint:goerr113
-)
-
-// FatalError indicates that the DTLS connection is no longer available.
-// It is mainly caused by wrong configuration of server or client.
-type FatalError = protocol.FatalError
-
-// InternalError indicates and internal error caused by the implementation, and the DTLS connection is no longer available.
-// It is mainly caused by bugs or tried to use unimplemented features.
-type InternalError = protocol.InternalError
-
-// TemporaryError indicates that the DTLS connection is still available, but the request was failed temporary.
-type TemporaryError = protocol.TemporaryError
-
-// TimeoutError indicates that the request was timed out.
-type TimeoutError = protocol.TimeoutError
-
-// HandshakeError indicates that the handshake failed.
-type HandshakeError = protocol.HandshakeError
-
-// invalidCipherSuite indicates an attempt at using an unsupported cipher suite.
-type invalidCipherSuite struct {
-	id CipherSuiteID
-}
-
-func (e *invalidCipherSuite) Error() string {
-	return fmt.Sprintf("CipherSuite with id(%d) is not valid", e.id)
-}
-
-func (e *invalidCipherSuite) Is(err error) bool {
-	if other, ok := err.(*invalidCipherSuite); ok {
-		return e.id == other.id
-	}
-	return false
-}
-
-// errAlert wraps DTLS alert notification as an error
-type errAlert struct {
-	*alert.Alert
-}
-
-func (e *errAlert) Error() string {
-	return fmt.Sprintf("alert: %s", e.Alert.String())
-}
-
-func (e *errAlert) IsFatalOrCloseNotify() bool {
-	return e.Level == alert.Fatal || e.Description == alert.CloseNotify
-}
-
-func (e *errAlert) Is(err error) bool {
-	if other, ok := err.(*errAlert); ok {
-		return e.Level == other.Level && e.Description == other.Description
-	}
-	return false
-}
-
-// netError translates an error from underlying Conn to corresponding net.Error.
-func netError(err error) error {
-	switch err {
-	case io.EOF, context.Canceled, context.DeadlineExceeded:
-		// Return io.EOF and context errors as is.
-		return err
-	}
-	switch e := err.(type) {
-	case (*net.OpError):
-		if se, ok := e.Err.(*os.SyscallError); ok {
-			if se.Timeout() {
-				return &TimeoutError{Err: err}
-			}
-			if isOpErrorTemporary(se) {
-				return &TemporaryError{Err: err}
-			}
-		}
-	case (net.Error):
-		return err
-	}
-	return &FatalError{Err: err}
-}
diff --git a/anylink/dtls-2.0.9/errors_errno.go b/anylink/dtls-2.0.9/errors_errno.go
deleted file mode 100644
index a9a439b..0000000
--- a/anylink/dtls-2.0.9/errors_errno.go
+++ /dev/null
@@ -1,25 +0,0 @@
-// +build aix darwin dragonfly freebsd linux nacl nacljs netbsd openbsd solaris windows
-
-// For systems having syscall.Errno.
-// Update build targets by following command:
-// $ grep -R ECONN $(go env GOROOT)/src/syscall/zerrors_*.go \
-//     | tr "." "_" | cut -d"_" -f"2" | sort | uniq
-
-package dtls
-
-import (
-	"os"
-	"syscall"
-)
-
-func isOpErrorTemporary(err *os.SyscallError) bool {
-	if ne, ok := err.Err.(syscall.Errno); ok {
-		switch ne {
-		case syscall.ECONNREFUSED:
-			return true
-		default:
-			return false
-		}
-	}
-	return false
-}
diff --git a/anylink/dtls-2.0.9/errors_errno_test.go b/anylink/dtls-2.0.9/errors_errno_test.go
deleted file mode 100644
index 7c567ee..0000000
--- a/anylink/dtls-2.0.9/errors_errno_test.go
+++ /dev/null
@@ -1,41 +0,0 @@
-// +build aix darwin dragonfly freebsd linux nacl nacljs netbsd openbsd solaris windows
-
-// For systems having syscall.Errno.
-// The build target must be same as errors_errno.go.
-
-package dtls
-
-import (
-	"net"
-	"testing"
-)
-
-func TestErrorsTemporary(t *testing.T) {
-	addrListen, errListen := net.ResolveUDPAddr("udp", "localhost:0")
-	if errListen != nil {
-		t.Fatalf("Unexpected error: %v", errListen)
-	}
-	// Server is not listening.
-	conn, errDial := net.DialUDP("udp", nil, addrListen)
-	if errDial != nil {
-		t.Fatalf("Unexpected error: %v", errDial)
-	}
-
-	_, _ = conn.Write([]byte{0x00}) // trigger
-	_, err := conn.Read(make([]byte, 10))
-	_ = conn.Close()
-
-	if err == nil {
-		t.Skip("ECONNREFUSED is not set by system")
-	}
-	ne, ok := netError(err).(net.Error)
-	if !ok {
-		t.Fatalf("netError must return net.Error")
-	}
-	if ne.Timeout() {
-		t.Errorf("%v must not be timeout error", err)
-	}
-	if !ne.Temporary() {
-		t.Errorf("%v must be temporary error", err)
-	}
-}
diff --git a/anylink/dtls-2.0.9/errors_noerrno.go b/anylink/dtls-2.0.9/errors_noerrno.go
deleted file mode 100644
index fcc37ce..0000000
--- a/anylink/dtls-2.0.9/errors_noerrno.go
+++ /dev/null
@@ -1,14 +0,0 @@
-// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!nacl,!nacljs,!netbsd,!openbsd,!solaris,!windows
-
-// For systems without syscall.Errno.
-// Build targets must be inverse of errors_errno.go
-
-package dtls
-
-import (
-	"os"
-)
-
-func isOpErrorTemporary(err *os.SyscallError) bool {
-	return false
-}
diff --git a/anylink/dtls-2.0.9/errors_test.go b/anylink/dtls-2.0.9/errors_test.go
deleted file mode 100644
index 0234315..0000000
--- a/anylink/dtls-2.0.9/errors_test.go
+++ /dev/null
@@ -1,85 +0,0 @@
-package dtls
-
-import (
-	"errors"
-	"fmt"
-	"net"
-	"testing"
-
-	"golang.org/x/xerrors"
-)
-
-var errExample = errors.New("an example error")
-
-func TestErrorUnwrap(t *testing.T) {
-	cases := []struct {
-		err          error
-		errUnwrapped []error
-	}{
-		{
-			&FatalError{Err: errExample},
-			[]error{errExample},
-		},
-		{
-			&TemporaryError{Err: errExample},
-			[]error{errExample},
-		},
-		{
-			&InternalError{Err: errExample},
-			[]error{errExample},
-		},
-		{
-			&TimeoutError{Err: errExample},
-			[]error{errExample},
-		},
-		{
-			&HandshakeError{Err: errExample},
-			[]error{errExample},
-		},
-	}
-	for _, c := range cases {
-		c := c
-		t.Run(fmt.Sprintf("%T", c.err), func(t *testing.T) {
-			err := c.err
-			for _, unwrapped := range c.errUnwrapped {
-				e := xerrors.Unwrap(err)
-				if !errors.Is(e, unwrapped) {
-					t.Errorf("Unwrapped error is expected to be '%v', got '%v'", unwrapped, e)
-				}
-			}
-		})
-	}
-}
-
-func TestErrorNetError(t *testing.T) {
-	cases := []struct {
-		err                error
-		str                string
-		timeout, temporary bool
-	}{
-		{&FatalError{Err: errExample}, "dtls fatal: an example error", false, false},
-		{&TemporaryError{Err: errExample}, "dtls temporary: an example error", false, true},
-		{&InternalError{Err: errExample}, "dtls internal: an example error", false, false},
-		{&TimeoutError{Err: errExample}, "dtls timeout: an example error", true, true},
-		{&HandshakeError{Err: errExample}, "handshake error: an example error", false, false},
-		{&HandshakeError{Err: &TimeoutError{Err: errExample}}, "handshake error: dtls timeout: an example error", true, true},
-	}
-	for _, c := range cases {
-		c := c
-		t.Run(fmt.Sprintf("%T", c.err), func(t *testing.T) {
-			ne, ok := c.err.(net.Error)
-			if !ok {
-				t.Fatalf("%T doesn't implement net.Error", c.err)
-			}
-			if ne.Timeout() != c.timeout {
-				t.Errorf("%T.Timeout() should be %v", c.err, c.timeout)
-			}
-			if ne.Temporary() != c.temporary {
-				t.Errorf("%T.Temporary() should be %v", c.err, c.temporary)
-			}
-			if ne.Error() != c.str {
-				t.Errorf("%T.Error() should be %v", c.err, c.str)
-			}
-		})
-	}
-}
diff --git a/anylink/dtls-2.0.9/examples/certificates/README.md b/anylink/dtls-2.0.9/examples/certificates/README.md
deleted file mode 100644
index aef3d09..0000000
--- a/anylink/dtls-2.0.9/examples/certificates/README.md
+++ /dev/null
@@ -1,26 +0,0 @@
-# Certificates
-
-The certificates in for the examples are generated using the commands shown below.
-
-Note that this was run on OpenSSL 1.1.1d, of which the arguments can be found in the [OpenSSL Manpages](https://www.openssl.org/docs/man1.1.1/man1), and is not guaranteed to work on different OpenSSL versions.
-
-```shell
-# Extensions required for certificate validation.
-$ EXTFILE='extfile.conf'
-$ echo 'subjectAltName = IP:127.0.0.1\nbasicConstraints = critical,CA:true' > "${EXTFILE}"
-
-# Server.
-$ SERVER_NAME='server'
-$ openssl ecparam -name prime256v1 -genkey -noout -out "${SERVER_NAME}.pem"
-$ openssl req -key "${SERVER_NAME}.pem" -new -sha256 -subj '/C=NL' -out "${SERVER_NAME}.csr"
-$ openssl x509 -req -in "${SERVER_NAME}.csr" -extfile "${EXTFILE}" -days 365 -signkey "${SERVER_NAME}.pem" -sha256 -out "${SERVER_NAME}.pub.pem"
-
-# Client.
-$ CLIENT_NAME='client'
-$ openssl ecparam -name prime256v1 -genkey -noout -out "${CLIENT_NAME}.pem"
-$ openssl req -key "${CLIENT_NAME}.pem" -new -sha256 -subj '/C=NL' -out "${CLIENT_NAME}.csr"
-$ openssl x509 -req -in "${CLIENT_NAME}.csr" -extfile "${EXTFILE}" -days 365 -CA "${SERVER_NAME}.pub.pem" -CAkey "${SERVER_NAME}.pem" -set_serial '0xabcd' -sha256 -out "${CLIENT_NAME}.pub.pem"
-
-# Cleanup.
-$ rm "${EXTFILE}" "${SERVER_NAME}.csr" "${CLIENT_NAME}.csr"
-```
diff --git a/anylink/dtls-2.0.9/examples/certificates/client.pem b/anylink/dtls-2.0.9/examples/certificates/client.pem
deleted file mode 100644
index f092d50..0000000
--- a/anylink/dtls-2.0.9/examples/certificates/client.pem
+++ /dev/null
@@ -1,5 +0,0 @@
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIGOO78dEAcepxdUIeDzC28jMcFrJr2q7x+UdhgtJ/RS3oAoGCCqGSM49
-AwEHoUQDQgAEGLSNxlkJ9mETKI2Hogq3Cyh06pJKA1YMgcKqYKS6yQQlvvk5rU88
-+RojFPgXJukymhfIJmw4eGxxEMSjuEZY7w==
------END EC PRIVATE KEY-----
diff --git a/anylink/dtls-2.0.9/examples/certificates/client.pub.pem b/anylink/dtls-2.0.9/examples/certificates/client.pub.pem
deleted file mode 100644
index 1259953..0000000
--- a/anylink/dtls-2.0.9/examples/certificates/client.pub.pem
+++ /dev/null
@@ -1,9 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBLTCB1aADAgECAgMAq80wCgYIKoZIzj0EAwIwDTELMAkGA1UEBhMCTkwwHhcN
-MjAwMzIwMDk0NjQ0WhcNMjEwMzIwMDk0NjQ0WjANMQswCQYDVQQGEwJOTDBZMBMG
-ByqGSM49AgEGCCqGSM49AwEHA0IABBi0jcZZCfZhEyiNh6IKtwsodOqSSgNWDIHC
-qmCkuskEJb75Oa1PPPkaIxT4FybpMpoXyCZsOHhscRDEo7hGWO+jJDAiMA8GA1Ud
-EQQIMAaHBH8AAAEwDwYDVR0TAQH/BAUwAwEB/zAKBggqhkjOPQQDAgNHADBEAiBx
-sIkcADN9E60veZOFOeANaRWAiQaLWZfUxqkOmfHztQIgI2CfHMjDQwJZFh35HvFs
-NOPJj8wxFhqR5pqMF23cgOY=
------END CERTIFICATE-----
diff --git a/anylink/dtls-2.0.9/examples/certificates/server.pem b/anylink/dtls-2.0.9/examples/certificates/server.pem
deleted file mode 100644
index 5a559d8..0000000
--- a/anylink/dtls-2.0.9/examples/certificates/server.pem
+++ /dev/null
@@ -1,5 +0,0 @@
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIDT8Xyx5RpPP+98ulYZKsvKIVdBUJug/L9H2M8JThv+GoAoGCCqGSM49
-AwEHoUQDQgAE6Wf0qQqIb5G7g51P83Dh1Yst52kyntGYz1Bt6S7crpmQFs9ZRZMy
-bJ6MGIwGcVBMgoL3pfxDKdZ3mnzmoibU0w==
------END EC PRIVATE KEY-----
diff --git a/anylink/dtls-2.0.9/examples/certificates/server.pub.pem b/anylink/dtls-2.0.9/examples/certificates/server.pub.pem
deleted file mode 100644
index e1cf479..0000000
--- a/anylink/dtls-2.0.9/examples/certificates/server.pub.pem
+++ /dev/null
@@ -1,9 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBPzCB5qADAgECAhRtzyVTL+9D0KHfbcKYeKckpLVRmTAKBggqhkjOPQQDAjAN
-MQswCQYDVQQGEwJOTDAeFw0yMDAzMjAwOTQ2NDRaFw0yMTAzMjAwOTQ2NDRaMA0x
-CzAJBgNVBAYTAk5MMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE6Wf0qQqIb5G7
-g51P83Dh1Yst52kyntGYz1Bt6S7crpmQFs9ZRZMybJ6MGIwGcVBMgoL3pfxDKdZ3
-mnzmoibU06MkMCIwDwYDVR0RBAgwBocEfwAAATAPBgNVHRMBAf8EBTADAQH/MAoG
-CCqGSM49BAMCA0gAMEUCIQD000SU+klkNLGvHZcMYNVkCFsImnGKIqPMy3LELSiF
-0gIgSGIFkNEIAyNxn44CXZJu3piyz1ouK2fLefDJMYfcXgM=
------END CERTIFICATE-----
diff --git a/anylink/dtls-2.0.9/examples/dial/psk/main.go b/anylink/dtls-2.0.9/examples/dial/psk/main.go
deleted file mode 100644
index dfac162..0000000
--- a/anylink/dtls-2.0.9/examples/dial/psk/main.go
+++ /dev/null
@@ -1,45 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-	"net"
-	"time"
-
-	"github.com/pion/dtls/v2"
-	"github.com/pion/dtls/v2/examples/util"
-)
-
-func main() {
-	// Prepare the IP to connect to
-	addr := &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: 4444}
-
-	//
-	// Everything below is the pion-DTLS API! Thanks for using it ❤️.
-	//
-
-	// Prepare the configuration of the DTLS connection
-	config := &dtls.Config{
-		PSK: func(hint []byte) ([]byte, error) {
-			fmt.Printf("Server's hint: %s \n", hint)
-			return []byte{0xAB, 0xC1, 0x23}, nil
-		},
-		PSKIdentityHint:      []byte("Pion DTLS Server"),
-		CipherSuites:         []dtls.CipherSuiteID{dtls.TLS_PSK_WITH_AES_128_CCM_8},
-		ExtendedMasterSecret: dtls.RequireExtendedMasterSecret,
-	}
-
-	// Connect to a DTLS server
-	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
-	defer cancel()
-	dtlsConn, err := dtls.DialWithContext(ctx, "udp", addr, config)
-	util.Check(err)
-	defer func() {
-		util.Check(dtlsConn.Close())
-	}()
-
-	fmt.Println("Connected; type 'exit' to shutdown gracefully")
-
-	// Simulate a chat session
-	util.Chat(dtlsConn)
-}
diff --git a/anylink/dtls-2.0.9/examples/dial/selfsign/main.go b/anylink/dtls-2.0.9/examples/dial/selfsign/main.go
deleted file mode 100644
index 7ff2926..0000000
--- a/anylink/dtls-2.0.9/examples/dial/selfsign/main.go
+++ /dev/null
@@ -1,47 +0,0 @@
-package main
-
-import (
-	"context"
-	"crypto/tls"
-	"fmt"
-	"net"
-	"time"
-
-	"github.com/pion/dtls/v2"
-	"github.com/pion/dtls/v2/examples/util"
-	"github.com/pion/dtls/v2/pkg/crypto/selfsign"
-)
-
-func main() {
-	// Prepare the IP to connect to
-	addr := &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: 4444}
-
-	// Generate a certificate and private key to secure the connection
-	certificate, genErr := selfsign.GenerateSelfSigned()
-	util.Check(genErr)
-
-	//
-	// Everything below is the pion-DTLS API! Thanks for using it ❤️.
-	//
-
-	// Prepare the configuration of the DTLS connection
-	config := &dtls.Config{
-		Certificates:         []tls.Certificate{certificate},
-		InsecureSkipVerify:   true,
-		ExtendedMasterSecret: dtls.RequireExtendedMasterSecret,
-	}
-
-	// Connect to a DTLS server
-	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
-	defer cancel()
-	dtlsConn, err := dtls.DialWithContext(ctx, "udp", addr, config)
-	util.Check(err)
-	defer func() {
-		util.Check(dtlsConn.Close())
-	}()
-
-	fmt.Println("Connected; type 'exit' to shutdown gracefully")
-
-	// Simulate a chat session
-	util.Chat(dtlsConn)
-}
diff --git a/anylink/dtls-2.0.9/examples/dial/verify/main.go b/anylink/dtls-2.0.9/examples/dial/verify/main.go
deleted file mode 100644
index 53340da..0000000
--- a/anylink/dtls-2.0.9/examples/dial/verify/main.go
+++ /dev/null
@@ -1,54 +0,0 @@
-package main
-
-import (
-	"context"
-	"crypto/tls"
-	"crypto/x509"
-	"fmt"
-	"net"
-	"time"
-
-	"github.com/pion/dtls/v2"
-	"github.com/pion/dtls/v2/examples/util"
-)
-
-func main() {
-	// Prepare the IP to connect to
-	addr := &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: 4444}
-
-	//
-	// Everything below is the pion-DTLS API! Thanks for using it ❤️.
-	//
-
-	certificate, err := util.LoadKeyAndCertificate("examples/certificates/client.pem",
-		"examples/certificates/client.pub.pem")
-	util.Check(err)
-
-	rootCertificate, err := util.LoadCertificate("examples/certificates/server.pub.pem")
-	util.Check(err)
-	certPool := x509.NewCertPool()
-	cert, err := x509.ParseCertificate(rootCertificate.Certificate[0])
-	util.Check(err)
-	certPool.AddCert(cert)
-
-	// Prepare the configuration of the DTLS connection
-	config := &dtls.Config{
-		Certificates:         []tls.Certificate{*certificate},
-		ExtendedMasterSecret: dtls.RequireExtendedMasterSecret,
-		RootCAs:              certPool,
-	}
-
-	// Connect to a DTLS server
-	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
-	defer cancel()
-	dtlsConn, err := dtls.DialWithContext(ctx, "udp", addr, config)
-	util.Check(err)
-	defer func() {
-		util.Check(dtlsConn.Close())
-	}()
-
-	fmt.Println("Connected; type 'exit' to shutdown gracefully")
-
-	// Simulate a chat session
-	util.Chat(dtlsConn)
-}
diff --git a/anylink/dtls-2.0.9/examples/listen/psk/main.go b/anylink/dtls-2.0.9/examples/listen/psk/main.go
deleted file mode 100644
index 72a6c23..0000000
--- a/anylink/dtls-2.0.9/examples/listen/psk/main.go
+++ /dev/null
@@ -1,72 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-	"net"
-	"time"
-
-	"github.com/pion/dtls/v2"
-	"github.com/pion/dtls/v2/examples/util"
-)
-
-func main() {
-	// Prepare the IP to connect to
-	addr := &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: 4444}
-
-	// Create parent context to cleanup handshaking connections on exit.
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	//
-	// Everything below is the pion-DTLS API! Thanks for using it ❤️.
-	//
-
-	// Prepare the configuration of the DTLS connection
-	config := &dtls.Config{
-		PSK: func(hint []byte) ([]byte, error) {
-			fmt.Printf("Client's hint: %s \n", hint)
-			return []byte{0xAB, 0xC1, 0x23}, nil
-		},
-		PSKIdentityHint:      []byte("Pion DTLS Client"),
-		CipherSuites:         []dtls.CipherSuiteID{dtls.TLS_PSK_WITH_AES_128_CCM_8},
-		ExtendedMasterSecret: dtls.RequireExtendedMasterSecret,
-		// Create timeout context for accepted connection.
-		ConnectContextMaker: func() (context.Context, func()) {
-			return context.WithTimeout(ctx, 30*time.Second)
-		},
-	}
-
-	// Connect to a DTLS server
-	listener, err := dtls.Listen("udp", addr, config)
-	util.Check(err)
-	defer func() {
-		util.Check(listener.Close())
-	}()
-
-	fmt.Println("Listening")
-
-	// Simulate a chat session
-	hub := util.NewHub()
-
-	go func() {
-		for {
-			// Wait for a connection.
-			conn, err := listener.Accept()
-			util.Check(err)
-			// defer conn.Close() // TODO: graceful shutdown
-
-			// `conn` is of type `net.Conn` but may be casted to `dtls.Conn`
-			// using `dtlsConn := conn.(*dtls.Conn)` in order to to expose
-			// functions like `ConnectionState` etc.
-
-			// Register the connection with the chat hub
-			if err == nil {
-				hub.Register(conn)
-			}
-		}
-	}()
-
-	// Start chatting
-	hub.Chat()
-}
diff --git a/anylink/dtls-2.0.9/examples/listen/selfsign/main.go b/anylink/dtls-2.0.9/examples/listen/selfsign/main.go
deleted file mode 100644
index 2df4ac4..0000000
--- a/anylink/dtls-2.0.9/examples/listen/selfsign/main.go
+++ /dev/null
@@ -1,73 +0,0 @@
-package main
-
-import (
-	"context"
-	"crypto/tls"
-	"fmt"
-	"net"
-	"time"
-
-	"github.com/pion/dtls/v2"
-	"github.com/pion/dtls/v2/examples/util"
-	"github.com/pion/dtls/v2/pkg/crypto/selfsign"
-)
-
-func main() {
-	// Prepare the IP to connect to
-	addr := &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: 4444}
-
-	// Generate a certificate and private key to secure the connection
-	certificate, genErr := selfsign.GenerateSelfSigned()
-	util.Check(genErr)
-
-	// Create parent context to cleanup handshaking connections on exit.
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	//
-	// Everything below is the pion-DTLS API! Thanks for using it ❤️.
-	//
-
-	// Prepare the configuration of the DTLS connection
-	config := &dtls.Config{
-		Certificates:         []tls.Certificate{certificate},
-		ExtendedMasterSecret: dtls.RequireExtendedMasterSecret,
-		// Create timeout context for accepted connection.
-		ConnectContextMaker: func() (context.Context, func()) {
-			return context.WithTimeout(ctx, 30*time.Second)
-		},
-	}
-
-	// Connect to a DTLS server
-	listener, err := dtls.Listen("udp", addr, config)
-	util.Check(err)
-	defer func() {
-		util.Check(listener.Close())
-	}()
-
-	fmt.Println("Listening")
-
-	// Simulate a chat session
-	hub := util.NewHub()
-
-	go func() {
-		for {
-			// Wait for a connection.
-			conn, err := listener.Accept()
-			util.Check(err)
-			// defer conn.Close() // TODO: graceful shutdown
-
-			// `conn` is of type `net.Conn` but may be casted to `dtls.Conn`
-			// using `dtlsConn := conn.(*dtls.Conn)` in order to to expose
-			// functions like `ConnectionState` etc.
-
-			// Register the connection with the chat hub
-			if err == nil {
-				hub.Register(conn)
-			}
-		}
-	}()
-
-	// Start chatting
-	hub.Chat()
-}
diff --git a/anylink/dtls-2.0.9/examples/listen/verify/main.go b/anylink/dtls-2.0.9/examples/listen/verify/main.go
deleted file mode 100644
index 96f5c0d..0000000
--- a/anylink/dtls-2.0.9/examples/listen/verify/main.go
+++ /dev/null
@@ -1,80 +0,0 @@
-package main
-
-import (
-	"context"
-	"crypto/tls"
-	"crypto/x509"
-	"fmt"
-	"net"
-	"time"
-
-	"github.com/pion/dtls/v2"
-	"github.com/pion/dtls/v2/examples/util"
-)
-
-func main() {
-	// Prepare the IP to connect to
-	addr := &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: 4444}
-
-	// Create parent context to cleanup handshaking connections on exit.
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	//
-	// Everything below is the pion-DTLS API! Thanks for using it ❤️.
-	//
-
-	certificate, err := util.LoadKeyAndCertificate("examples/certificates/server.pem",
-		"examples/certificates/server.pub.pem")
-	util.Check(err)
-
-	rootCertificate, err := util.LoadCertificate("examples/certificates/server.pub.pem")
-	util.Check(err)
-	certPool := x509.NewCertPool()
-	cert, err := x509.ParseCertificate(rootCertificate.Certificate[0])
-	util.Check(err)
-	certPool.AddCert(cert)
-
-	// Prepare the configuration of the DTLS connection
-	config := &dtls.Config{
-		Certificates:         []tls.Certificate{*certificate},
-		ExtendedMasterSecret: dtls.RequireExtendedMasterSecret,
-		ClientAuth:           dtls.RequireAndVerifyClientCert,
-		ClientCAs:            certPool,
-		// Create timeout context for accepted connection.
-		ConnectContextMaker: func() (context.Context, func()) {
-			return context.WithTimeout(ctx, 30*time.Second)
-		},
-	}
-
-	// Connect to a DTLS server
-	listener, err := dtls.Listen("udp", addr, config)
-	util.Check(err)
-	defer func() {
-		util.Check(listener.Close())
-	}()
-
-	fmt.Println("Listening")
-
-	// Simulate a chat session
-	hub := util.NewHub()
-
-	go func() {
-		for {
-			// Wait for a connection.
-			conn, err := listener.Accept()
-			util.Check(err)
-			// defer conn.Close() // TODO: graceful shutdown
-
-			// `conn` is of type `net.Conn` but may be casted to `dtls.Conn`
-			// using `dtlsConn := conn.(*dtls.Conn)` in order to to expose
-			// functions like `ConnectionState` etc.
-
-			// Register the connection with the chat hub
-			hub.Register(conn)
-		}
-	}()
-
-	// Start chatting
-	hub.Chat()
-}
diff --git a/anylink/dtls-2.0.9/examples/util/hub.go b/anylink/dtls-2.0.9/examples/util/hub.go
deleted file mode 100644
index ad8e597..0000000
--- a/anylink/dtls-2.0.9/examples/util/hub.go
+++ /dev/null
@@ -1,80 +0,0 @@
-package util
-
-import (
-	"bufio"
-	"fmt"
-	"net"
-	"os"
-	"strings"
-	"sync"
-)
-
-// Hub is a helper to handle one to many chat
-type Hub struct {
-	conns map[string]net.Conn
-	lock  sync.RWMutex
-}
-
-// NewHub builds a new hub
-func NewHub() *Hub {
-	return &Hub{conns: make(map[string]net.Conn)}
-}
-
-// Register adds a new conn to the Hub
-func (h *Hub) Register(conn net.Conn) {
-	fmt.Printf("Connected to %s\n", conn.RemoteAddr())
-	h.lock.Lock()
-	defer h.lock.Unlock()
-
-	h.conns[conn.RemoteAddr().String()] = conn
-
-	go h.readLoop(conn)
-}
-
-func (h *Hub) readLoop(conn net.Conn) {
-	b := make([]byte, bufSize)
-	for {
-		n, err := conn.Read(b)
-		if err != nil {
-			h.unregister(conn)
-			return
-		}
-		fmt.Printf("Got message: %s\n", string(b[:n]))
-	}
-}
-
-func (h *Hub) unregister(conn net.Conn) {
-	h.lock.Lock()
-	defer h.lock.Unlock()
-	delete(h.conns, conn.RemoteAddr().String())
-	err := conn.Close()
-	if err != nil {
-		fmt.Println("Failed to disconnect", conn.RemoteAddr(), err)
-	} else {
-		fmt.Println("Disconnected ", conn.RemoteAddr())
-	}
-}
-
-func (h *Hub) broadcast(msg []byte) {
-	h.lock.RLock()
-	defer h.lock.RUnlock()
-	for _, conn := range h.conns {
-		_, err := conn.Write(msg)
-		if err != nil {
-			fmt.Printf("Failed to write message to %s: %v\n", conn.RemoteAddr(), err)
-		}
-	}
-}
-
-// Chat starts the stdin readloop to dispatch messages to the hub
-func (h *Hub) Chat() {
-	reader := bufio.NewReader(os.Stdin)
-	for {
-		msg, err := reader.ReadString('\n')
-		Check(err)
-		if strings.TrimSpace(msg) == "exit" {
-			return
-		}
-		h.broadcast([]byte(msg))
-	}
-}
diff --git a/anylink/dtls-2.0.9/examples/util/util.go b/anylink/dtls-2.0.9/examples/util/util.go
deleted file mode 100644
index 8f53539..0000000
--- a/anylink/dtls-2.0.9/examples/util/util.go
+++ /dev/null
@@ -1,154 +0,0 @@
-// Package util provides auxiliary utilities used in examples
-package util
-
-import (
-	"bufio"
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/rsa"
-	"crypto/tls"
-	"crypto/x509"
-	"encoding/pem"
-	"errors"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net"
-	"os"
-	"path/filepath"
-	"strings"
-)
-
-const bufSize = 8192
-
-var (
-	errBlockIsNotPrivateKey  = errors.New("block is not a private key, unable to load key")
-	errUnknownKeyTime        = errors.New("unknown key time in PKCS#8 wrapping, unable to load key")
-	errNoPrivateKeyFound     = errors.New("no private key found, unable to load key")
-	errBlockIsNotCertificate = errors.New("block is not a certificate, unable to load certificates")
-	errNoCertificateFound    = errors.New("no certificate found, unable to load certificates")
-)
-
-// Chat simulates a simple text chat session over the connection
-func Chat(conn io.ReadWriter) {
-	go func() {
-		b := make([]byte, bufSize)
-
-		for {
-			n, err := conn.Read(b)
-			Check(err)
-			fmt.Printf("Got message: %s\n", string(b[:n]))
-		}
-	}()
-
-	reader := bufio.NewReader(os.Stdin)
-
-	for {
-		text, err := reader.ReadString('\n')
-		Check(err)
-
-		if strings.TrimSpace(text) == "exit" {
-			return
-		}
-
-		_, err = conn.Write([]byte(text))
-		Check(err)
-	}
-}
-
-// Check is a helper to throw errors in the examples
-func Check(err error) {
-	switch e := err.(type) {
-	case nil:
-	case (net.Error):
-		if e.Temporary() {
-			fmt.Printf("Warning: %v\n", err)
-			return
-		}
-
-		fmt.Printf("net.Error: %v\n", err)
-		panic(err)
-	default:
-		fmt.Printf("error: %v\n", err)
-		panic(err)
-	}
-}
-
-// LoadKeyAndCertificate reads certificates or key from file
-func LoadKeyAndCertificate(keyPath string, certificatePath string) (*tls.Certificate, error) {
-	privateKey, err := LoadKey(keyPath)
-	if err != nil {
-		return nil, err
-	}
-
-	certificate, err := LoadCertificate(certificatePath)
-	if err != nil {
-		return nil, err
-	}
-
-	certificate.PrivateKey = privateKey
-
-	return certificate, nil
-}
-
-// LoadKey Load/read key from file
-func LoadKey(path string) (crypto.PrivateKey, error) {
-	rawData, err := ioutil.ReadFile(filepath.Clean(path))
-	if err != nil {
-		return nil, err
-	}
-
-	block, _ := pem.Decode(rawData)
-	if block == nil || !strings.HasSuffix(block.Type, "PRIVATE KEY") {
-		return nil, errBlockIsNotPrivateKey
-	}
-
-	if key, err := x509.ParsePKCS1PrivateKey(block.Bytes); err == nil {
-		return key, nil
-	}
-
-	if key, err := x509.ParsePKCS8PrivateKey(block.Bytes); err == nil {
-		switch key := key.(type) {
-		case *rsa.PrivateKey, *ecdsa.PrivateKey:
-			return key, nil
-		default:
-			return nil, errUnknownKeyTime
-		}
-	}
-
-	if key, err := x509.ParseECPrivateKey(block.Bytes); err == nil {
-		return key, nil
-	}
-
-	return nil, errNoPrivateKeyFound
-}
-
-// LoadCertificate Load/read certificate(s) from file
-func LoadCertificate(path string) (*tls.Certificate, error) {
-	rawData, err := ioutil.ReadFile(filepath.Clean(path))
-	if err != nil {
-		return nil, err
-	}
-
-	var certificate tls.Certificate
-
-	for {
-		block, rest := pem.Decode(rawData)
-		if block == nil {
-			break
-		}
-
-		if block.Type != "CERTIFICATE" {
-			return nil, errBlockIsNotCertificate
-		}
-
-		certificate.Certificate = append(certificate.Certificate, block.Bytes)
-		rawData = rest
-	}
-
-	if len(certificate.Certificate) == 0 {
-		return nil, errNoCertificateFound
-	}
-
-	return &certificate, nil
-}
diff --git a/anylink/dtls-2.0.9/flight.go b/anylink/dtls-2.0.9/flight.go
deleted file mode 100644
index 580ee48..0000000
--- a/anylink/dtls-2.0.9/flight.go
+++ /dev/null
@@ -1,75 +0,0 @@
-package dtls
-
-/*
-  DTLS messages are grouped into a series of message flights, according
-  to the diagrams below.  Although each flight of messages may consist
-  of a number of messages, they should be viewed as monolithic for the
-  purpose of timeout and retransmission.
-  https://tools.ietf.org/html/rfc4347#section-4.2.4
-  Client                                          Server
-  ------                                          ------
-                                      Waiting                 Flight 0
-
-  ClientHello             -------->                           Flight 1
-
-                          <-------    HelloVerifyRequest      Flight 2
-
-  ClientHello              -------->                           Flight 3
-
-                                             ServerHello    \
-                                            Certificate*     \
-                                      ServerKeyExchange*      Flight 4
-                                     CertificateRequest*     /
-                          <--------      ServerHelloDone    /
-
-  Certificate*                                              \
-  ClientKeyExchange                                          \
-  CertificateVerify*                                          Flight 5
-  [ChangeCipherSpec]                                         /
-  Finished                -------->                         /
-
-                                      [ChangeCipherSpec]    \ Flight 6
-                          <--------             Finished    /
-
-*/
-
-type flightVal uint8
-
-const (
-	flight0 flightVal = iota + 1
-	flight1
-	flight2
-	flight3
-	flight4
-	flight5
-	flight6
-)
-
-func (f flightVal) String() string {
-	switch f {
-	case flight0:
-		return "Flight 0"
-	case flight1:
-		return "Flight 1"
-	case flight2:
-		return "Flight 2"
-	case flight3:
-		return "Flight 3"
-	case flight4:
-		return "Flight 4"
-	case flight5:
-		return "Flight 5"
-	case flight6:
-		return "Flight 6"
-	default:
-		return "Invalid Flight"
-	}
-}
-
-func (f flightVal) isLastSendFlight() bool {
-	return f == flight6
-}
-
-func (f flightVal) isLastRecvFlight() bool {
-	return f == flight5
-}
diff --git a/anylink/dtls-2.0.9/flight0handler.go b/anylink/dtls-2.0.9/flight0handler.go
deleted file mode 100644
index 949d7c0..0000000
--- a/anylink/dtls-2.0.9/flight0handler.go
+++ /dev/null
@@ -1,102 +0,0 @@
-package dtls
-
-import (
-	"context"
-	"crypto/rand"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-	"github.com/pion/dtls/v2/pkg/protocol/extension"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-)
-
-func flight0Parse(ctx context.Context, c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) (flightVal, *alert.Alert, error) {
-	seq, msgs, ok := cache.fullPullMap(0,
-		handshakeCachePullRule{handshake.TypeClientHello, cfg.initialEpoch, true, false},
-	)
-	if !ok {
-		// No valid message received. Keep reading
-		return 0, nil, nil
-	}
-	state.handshakeRecvSequence = seq
-
-	var clientHello *handshake.MessageClientHello
-
-	// Validate type
-	if clientHello, ok = msgs[handshake.TypeClientHello].(*handshake.MessageClientHello); !ok {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, nil
-	}
-
-	if !clientHello.Version.Equal(protocol.Version1_2) {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.ProtocolVersion}, errUnsupportedProtocolVersion
-	}
-
-	state.remoteRandom = clientHello.Random
-
-	cipherSuites := []CipherSuite{}
-	for _, id := range clientHello.CipherSuiteIDs {
-		if c := cipherSuiteForID(CipherSuiteID(id), cfg.customCipherSuites); c != nil {
-			cipherSuites = append(cipherSuites, c)
-		}
-	}
-
-	if state.cipherSuite, ok = findMatchingCipherSuite(cipherSuites, cfg.localCipherSuites); !ok {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}, errCipherSuiteNoIntersection
-	}
-
-	for _, val := range clientHello.Extensions {
-		switch e := val.(type) {
-		case *extension.SupportedEllipticCurves:
-			if len(e.EllipticCurves) == 0 {
-				return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}, errNoSupportedEllipticCurves
-			}
-			state.namedCurve = e.EllipticCurves[0]
-		case *extension.UseSRTP:
-			profile, ok := findMatchingSRTPProfile(e.ProtectionProfiles, cfg.localSRTPProtectionProfiles)
-			if !ok {
-				return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}, errServerNoMatchingSRTPProfile
-			}
-			state.srtpProtectionProfile = profile
-		case *extension.UseExtendedMasterSecret:
-			if cfg.extendedMasterSecret != DisableExtendedMasterSecret {
-				state.extendedMasterSecret = true
-			}
-		case *extension.ServerName:
-			state.serverName = e.ServerName // remote server name
-		}
-	}
-
-	if cfg.extendedMasterSecret == RequireExtendedMasterSecret && !state.extendedMasterSecret {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}, errServerRequiredButNoClientEMS
-	}
-
-	if state.localKeypair == nil {
-		var err error
-		state.localKeypair, err = elliptic.GenerateKeypair(state.namedCurve)
-		if err != nil {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.IllegalParameter}, err
-		}
-	}
-
-	return flight2, nil, nil
-}
-
-func flight0Generate(c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) ([]*packet, *alert.Alert, error) {
-	// Initialize
-	state.cookie = make([]byte, cookieLength)
-	if _, err := rand.Read(state.cookie); err != nil {
-		return nil, nil, err
-	}
-
-	var zeroEpoch uint16
-	state.localEpoch.Store(zeroEpoch)
-	state.remoteEpoch.Store(zeroEpoch)
-	state.namedCurve = defaultNamedCurve
-
-	if err := state.localRandom.Populate(); err != nil {
-		return nil, nil, err
-	}
-
-	return nil, nil, nil
-}
diff --git a/anylink/dtls-2.0.9/flight1handler.go b/anylink/dtls-2.0.9/flight1handler.go
deleted file mode 100644
index 9229292..0000000
--- a/anylink/dtls-2.0.9/flight1handler.go
+++ /dev/null
@@ -1,112 +0,0 @@
-package dtls
-
-import (
-	"context"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-	"github.com/pion/dtls/v2/pkg/protocol/extension"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-func flight1Parse(ctx context.Context, c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) (flightVal, *alert.Alert, error) {
-	// HelloVerifyRequest can be skipped by the server,
-	// so allow ServerHello during flight1 also
-	seq, msgs, ok := cache.fullPullMap(state.handshakeRecvSequence,
-		handshakeCachePullRule{handshake.TypeHelloVerifyRequest, cfg.initialEpoch, false, true},
-		handshakeCachePullRule{handshake.TypeServerHello, cfg.initialEpoch, false, true},
-	)
-	if !ok {
-		// No valid message received. Keep reading
-		return 0, nil, nil
-	}
-
-	if _, ok := msgs[handshake.TypeServerHello]; ok {
-		// Flight1 and flight2 were skipped.
-		// Parse as flight3.
-		return flight3Parse(ctx, c, state, cache, cfg)
-	}
-
-	if h, ok := msgs[handshake.TypeHelloVerifyRequest].(*handshake.MessageHelloVerifyRequest); ok {
-		// DTLS 1.2 clients must not assume that the server will use the protocol version
-		// specified in HelloVerifyRequest message. RFC 6347 Section 4.2.1
-		if !h.Version.Equal(protocol.Version1_0) && !h.Version.Equal(protocol.Version1_2) {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.ProtocolVersion}, errUnsupportedProtocolVersion
-		}
-		state.cookie = append([]byte{}, h.Cookie...)
-		state.handshakeRecvSequence = seq
-		return flight3, nil, nil
-	}
-
-	return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, nil
-}
-
-func flight1Generate(c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) ([]*packet, *alert.Alert, error) {
-	var zeroEpoch uint16
-	state.localEpoch.Store(zeroEpoch)
-	state.remoteEpoch.Store(zeroEpoch)
-	state.namedCurve = defaultNamedCurve
-	state.cookie = nil
-
-	if err := state.localRandom.Populate(); err != nil {
-		return nil, nil, err
-	}
-
-	extensions := []extension.Extension{
-		&extension.SupportedSignatureAlgorithms{
-			SignatureHashAlgorithms: cfg.localSignatureSchemes,
-		},
-		&extension.RenegotiationInfo{
-			RenegotiatedConnection: 0,
-		},
-	}
-	if cfg.localPSKCallback == nil {
-		extensions = append(extensions, []extension.Extension{
-			&extension.SupportedEllipticCurves{
-				EllipticCurves: []elliptic.Curve{elliptic.X25519, elliptic.P256, elliptic.P384},
-			},
-			&extension.SupportedPointFormats{
-				PointFormats: []elliptic.CurvePointFormat{elliptic.CurvePointFormatUncompressed},
-			},
-		}...)
-	}
-
-	if len(cfg.localSRTPProtectionProfiles) > 0 {
-		extensions = append(extensions, &extension.UseSRTP{
-			ProtectionProfiles: cfg.localSRTPProtectionProfiles,
-		})
-	}
-
-	if cfg.extendedMasterSecret == RequestExtendedMasterSecret ||
-		cfg.extendedMasterSecret == RequireExtendedMasterSecret {
-		extensions = append(extensions, &extension.UseExtendedMasterSecret{
-			Supported: true,
-		})
-	}
-
-	if len(cfg.serverName) > 0 {
-		extensions = append(extensions, &extension.ServerName{ServerName: cfg.serverName})
-	}
-
-	return []*packet{
-		{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Version: protocol.Version1_2,
-				},
-				Content: &handshake.Handshake{
-					Message: &handshake.MessageClientHello{
-						Version:            protocol.Version1_2,
-						Cookie:             state.cookie,
-						Random:             state.localRandom,
-						CipherSuiteIDs:     cipherSuiteIDs(cfg.localCipherSuites),
-						CompressionMethods: defaultCompressionMethods(),
-						Extensions:         extensions,
-					},
-				},
-			},
-		},
-	}, nil, nil
-}
diff --git a/anylink/dtls-2.0.9/flight2handler.go b/anylink/dtls-2.0.9/flight2handler.go
deleted file mode 100644
index 33e2ee7..0000000
--- a/anylink/dtls-2.0.9/flight2handler.go
+++ /dev/null
@@ -1,78 +0,0 @@
-package dtls
-
-import (
-	"bytes"
-	"context"
-	"fmt"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-func flight2Parse(ctx context.Context, c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) (flightVal, *alert.Alert, error) {
-	seq, msgs, ok := cache.fullPullMap(state.handshakeRecvSequence,
-		handshakeCachePullRule{handshake.TypeClientHello, cfg.initialEpoch, true, false},
-	)
-	if !ok {
-		// Client may retransmit the first ClientHello when HelloVerifyRequest is dropped.
-		// Parse as flight 0 in this case.
-		return flight0Parse(ctx, c, state, cache, cfg)
-	}
-	state.handshakeRecvSequence = seq
-
-	var clientHello *handshake.MessageClientHello
-
-	// Validate type
-	if clientHello, ok = msgs[handshake.TypeClientHello].(*handshake.MessageClientHello); !ok {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, nil
-	}
-
-	if !clientHello.Version.Equal(protocol.Version1_2) {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.ProtocolVersion}, errUnsupportedProtocolVersion
-	}
-
-	if len(clientHello.Cookie) == 0 {
-		return 0, nil, nil
-	}
-	if !bytes.Equal(state.cookie, clientHello.Cookie) {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.AccessDenied}, errCookieMismatch
-	}
-
-	// TODO 添加 CiscoCompat 支持
-	if cfg.localCiscoCompatCallback != nil {
-		var err error
-		state.SessionID = clientHello.SessionID
-		if len(state.SessionID) == 0 {
-			err = fmt.Errorf("clientHello SessionID is nil")
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.IllegalParameter}, err
-		}
-
-		state.masterSecret, err = cfg.localCiscoCompatCallback(state.SessionID)
-		if err != nil {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.IllegalParameter}, err
-		}
-	}
-
-	return flight4, nil, nil
-}
-
-func flight2Generate(c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) ([]*packet, *alert.Alert, error) {
-	state.handshakeSendSequence = 0
-	return []*packet{
-		{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Version: protocol.Version1_2,
-				},
-				Content: &handshake.Handshake{
-					Message: &handshake.MessageHelloVerifyRequest{
-						Version: protocol.Version1_2,
-						Cookie:  state.cookie,
-					},
-				},
-			},
-		},
-	}, nil, nil
-}
diff --git a/anylink/dtls-2.0.9/flight3handler.go b/anylink/dtls-2.0.9/flight3handler.go
deleted file mode 100644
index f953be8..0000000
--- a/anylink/dtls-2.0.9/flight3handler.go
+++ /dev/null
@@ -1,194 +0,0 @@
-package dtls
-
-import (
-	"context"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-	"github.com/pion/dtls/v2/pkg/crypto/prf"
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-	"github.com/pion/dtls/v2/pkg/protocol/extension"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-func flight3Parse(ctx context.Context, c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) (flightVal, *alert.Alert, error) { //nolint:gocognit
-	// Clients may receive multiple HelloVerifyRequest messages with different cookies.
-	// Clients SHOULD handle this by sending a new ClientHello with a cookie in response
-	// to the new HelloVerifyRequest. RFC 6347 Section 4.2.1
-	seq, msgs, ok := cache.fullPullMap(state.handshakeRecvSequence,
-		handshakeCachePullRule{handshake.TypeHelloVerifyRequest, cfg.initialEpoch, false, true},
-	)
-	if ok {
-		if h, msgOk := msgs[handshake.TypeHelloVerifyRequest].(*handshake.MessageHelloVerifyRequest); msgOk {
-			// DTLS 1.2 clients must not assume that the server will use the protocol version
-			// specified in HelloVerifyRequest message. RFC 6347 Section 4.2.1
-			if !h.Version.Equal(protocol.Version1_0) && !h.Version.Equal(protocol.Version1_2) {
-				return 0, &alert.Alert{Level: alert.Fatal, Description: alert.ProtocolVersion}, errUnsupportedProtocolVersion
-			}
-			state.cookie = append([]byte{}, h.Cookie...)
-			state.handshakeRecvSequence = seq
-			return flight3, nil, nil
-		}
-	}
-
-	if cfg.localPSKCallback != nil {
-		seq, msgs, ok = cache.fullPullMap(state.handshakeRecvSequence,
-			handshakeCachePullRule{handshake.TypeServerHello, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeServerKeyExchange, cfg.initialEpoch, false, true},
-			handshakeCachePullRule{handshake.TypeServerHelloDone, cfg.initialEpoch, false, false},
-		)
-	} else {
-		seq, msgs, ok = cache.fullPullMap(state.handshakeRecvSequence,
-			handshakeCachePullRule{handshake.TypeServerHello, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificate, cfg.initialEpoch, false, true},
-			handshakeCachePullRule{handshake.TypeServerKeyExchange, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificateRequest, cfg.initialEpoch, false, true},
-			handshakeCachePullRule{handshake.TypeServerHelloDone, cfg.initialEpoch, false, false},
-		)
-	}
-	if !ok {
-		// Don't have enough messages. Keep reading
-		return 0, nil, nil
-	}
-	state.handshakeRecvSequence = seq
-
-	if h, ok := msgs[handshake.TypeServerHello].(*handshake.MessageServerHello); ok {
-		if !h.Version.Equal(protocol.Version1_2) {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.ProtocolVersion}, errUnsupportedProtocolVersion
-		}
-		for _, v := range h.Extensions {
-			switch e := v.(type) {
-			case *extension.UseSRTP:
-				profile, ok := findMatchingSRTPProfile(e.ProtectionProfiles, cfg.localSRTPProtectionProfiles)
-				if !ok {
-					return 0, &alert.Alert{Level: alert.Fatal, Description: alert.IllegalParameter}, errClientNoMatchingSRTPProfile
-				}
-				state.srtpProtectionProfile = profile
-			case *extension.UseExtendedMasterSecret:
-				if cfg.extendedMasterSecret != DisableExtendedMasterSecret {
-					state.extendedMasterSecret = true
-				}
-			}
-		}
-		if cfg.extendedMasterSecret == RequireExtendedMasterSecret && !state.extendedMasterSecret {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}, errClientRequiredButNoServerEMS
-		}
-		if len(cfg.localSRTPProtectionProfiles) > 0 && state.srtpProtectionProfile == 0 {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}, errRequestedButNoSRTPExtension
-		}
-
-		remoteCipherSuite := cipherSuiteForID(CipherSuiteID(*h.CipherSuiteID), cfg.customCipherSuites)
-		if remoteCipherSuite == nil {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}, errCipherSuiteNoIntersection
-		}
-
-		selectedCipherSuite, ok := findMatchingCipherSuite([]CipherSuite{remoteCipherSuite}, cfg.localCipherSuites)
-		if !ok {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}, errInvalidCipherSuite
-		}
-
-		state.cipherSuite = selectedCipherSuite
-		state.remoteRandom = h.Random
-		cfg.log.Tracef("[handshake] use cipher suite: %s", selectedCipherSuite.String())
-	}
-
-	if h, ok := msgs[handshake.TypeCertificate].(*handshake.MessageCertificate); ok {
-		state.PeerCertificates = h.Certificate
-	} else if state.cipherSuite.AuthenticationType() == CipherSuiteAuthenticationTypeCertificate {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.NoCertificate}, errInvalidCertificate
-	}
-
-	if h, ok := msgs[handshake.TypeServerKeyExchange].(*handshake.MessageServerKeyExchange); ok {
-		alertPtr, err := handleServerKeyExchange(c, state, cfg, h)
-		if err != nil {
-			return 0, alertPtr, err
-		}
-	}
-
-	if _, ok := msgs[handshake.TypeCertificateRequest].(*handshake.MessageCertificateRequest); ok {
-		state.remoteRequestedCertificate = true
-	}
-
-	return flight5, nil, nil
-}
-
-func handleServerKeyExchange(_ flightConn, state *State, cfg *handshakeConfig, h *handshake.MessageServerKeyExchange) (*alert.Alert, error) {
-	var err error
-	if cfg.localPSKCallback != nil {
-		var psk []byte
-		if psk, err = cfg.localPSKCallback(h.IdentityHint); err != nil {
-			return &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-		}
-		state.IdentityHint = h.IdentityHint
-		state.preMasterSecret = prf.PSKPreMasterSecret(psk)
-	} else {
-		if state.localKeypair, err = elliptic.GenerateKeypair(h.NamedCurve); err != nil {
-			return &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-		}
-
-		if state.preMasterSecret, err = prf.PreMasterSecret(h.PublicKey, state.localKeypair.PrivateKey, state.localKeypair.Curve); err != nil {
-			return &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-		}
-	}
-
-	return nil, nil
-}
-
-func flight3Generate(c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) ([]*packet, *alert.Alert, error) {
-	extensions := []extension.Extension{
-		&extension.SupportedSignatureAlgorithms{
-			SignatureHashAlgorithms: cfg.localSignatureSchemes,
-		},
-		&extension.RenegotiationInfo{
-			RenegotiatedConnection: 0,
-		},
-	}
-	if cfg.localPSKCallback == nil {
-		extensions = append(extensions, []extension.Extension{
-			&extension.SupportedEllipticCurves{
-				EllipticCurves: []elliptic.Curve{elliptic.X25519, elliptic.P256, elliptic.P384},
-			},
-			&extension.SupportedPointFormats{
-				PointFormats: []elliptic.CurvePointFormat{elliptic.CurvePointFormatUncompressed},
-			},
-		}...)
-	}
-
-	if len(cfg.localSRTPProtectionProfiles) > 0 {
-		extensions = append(extensions, &extension.UseSRTP{
-			ProtectionProfiles: cfg.localSRTPProtectionProfiles,
-		})
-	}
-
-	if cfg.extendedMasterSecret == RequestExtendedMasterSecret ||
-		cfg.extendedMasterSecret == RequireExtendedMasterSecret {
-		extensions = append(extensions, &extension.UseExtendedMasterSecret{
-			Supported: true,
-		})
-	}
-
-	if len(cfg.serverName) > 0 {
-		extensions = append(extensions, &extension.ServerName{ServerName: cfg.serverName})
-	}
-
-	return []*packet{
-		{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Version: protocol.Version1_2,
-				},
-				Content: &handshake.Handshake{
-					Message: &handshake.MessageClientHello{
-						Version:            protocol.Version1_2,
-						Cookie:             state.cookie,
-						Random:             state.localRandom,
-						CipherSuiteIDs:     cipherSuiteIDs(cfg.localCipherSuites),
-						CompressionMethods: defaultCompressionMethods(),
-						Extensions:         extensions,
-					},
-				},
-			},
-		},
-	}, nil, nil
-}
diff --git a/anylink/dtls-2.0.9/flight4handler.go b/anylink/dtls-2.0.9/flight4handler.go
deleted file mode 100644
index 1464854..0000000
--- a/anylink/dtls-2.0.9/flight4handler.go
+++ /dev/null
@@ -1,352 +0,0 @@
-package dtls
-
-import (
-	"context"
-	"crypto/x509"
-
-	"github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-	"github.com/pion/dtls/v2/pkg/crypto/prf"
-	"github.com/pion/dtls/v2/pkg/crypto/signaturehash"
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-	"github.com/pion/dtls/v2/pkg/protocol/extension"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-func flight4Parse(ctx context.Context, c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) (flightVal, *alert.Alert, error) { //nolint:gocognit
-	seq, msgs, ok := cache.fullPullMap(state.handshakeRecvSequence,
-		handshakeCachePullRule{handshake.TypeCertificate, cfg.initialEpoch, true, true},
-		handshakeCachePullRule{handshake.TypeClientKeyExchange, cfg.initialEpoch, true, false},
-		handshakeCachePullRule{handshake.TypeCertificateVerify, cfg.initialEpoch, true, true},
-	)
-	if !ok {
-		// No valid message received. Keep reading
-		return 0, nil, nil
-	}
-
-	// Validate type
-	var clientKeyExchange *handshake.MessageClientKeyExchange
-	if clientKeyExchange, ok = msgs[handshake.TypeClientKeyExchange].(*handshake.MessageClientKeyExchange); !ok {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, nil
-	}
-
-	if h, hasCert := msgs[handshake.TypeCertificate].(*handshake.MessageCertificate); hasCert {
-		state.PeerCertificates = h.Certificate
-	}
-
-	if h, hasCertVerify := msgs[handshake.TypeCertificateVerify].(*handshake.MessageCertificateVerify); hasCertVerify {
-		if state.PeerCertificates == nil {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.NoCertificate}, errCertificateVerifyNoCertificate
-		}
-
-		plainText := cache.pullAndMerge(
-			handshakeCachePullRule{handshake.TypeClientHello, cfg.initialEpoch, true, false},
-			handshakeCachePullRule{handshake.TypeServerHello, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificate, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeServerKeyExchange, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificateRequest, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeServerHelloDone, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificate, cfg.initialEpoch, true, false},
-			handshakeCachePullRule{handshake.TypeClientKeyExchange, cfg.initialEpoch, true, false},
-		)
-
-		// Verify that the pair of hash algorithm and signiture is listed.
-		var validSignatureScheme bool
-		for _, ss := range cfg.localSignatureSchemes {
-			if ss.Hash == h.HashAlgorithm && ss.Signature == h.SignatureAlgorithm {
-				validSignatureScheme = true
-				break
-			}
-		}
-		if !validSignatureScheme {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}, errNoAvailableSignatureSchemes
-		}
-
-		if err := verifyCertificateVerify(plainText, h.HashAlgorithm, h.Signature, state.PeerCertificates); err != nil {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.BadCertificate}, err
-		}
-		var chains [][]*x509.Certificate
-		var err error
-		var verified bool
-		if cfg.clientAuth >= VerifyClientCertIfGiven {
-			if chains, err = verifyClientCert(state.PeerCertificates, cfg.clientCAs); err != nil {
-				return 0, &alert.Alert{Level: alert.Fatal, Description: alert.BadCertificate}, err
-			}
-			verified = true
-		}
-		if cfg.verifyPeerCertificate != nil {
-			if err := cfg.verifyPeerCertificate(state.PeerCertificates, chains); err != nil {
-				return 0, &alert.Alert{Level: alert.Fatal, Description: alert.BadCertificate}, err
-			}
-		}
-		state.peerCertificatesVerified = verified
-	}
-
-	if !state.cipherSuite.IsInitialized() {
-		serverRandom := state.localRandom.MarshalFixed()
-		clientRandom := state.remoteRandom.MarshalFixed()
-
-		var err error
-		var preMasterSecret []byte
-		if state.cipherSuite.AuthenticationType() == CipherSuiteAuthenticationTypePreSharedKey {
-			var psk []byte
-			if psk, err = cfg.localPSKCallback(clientKeyExchange.IdentityHint); err != nil {
-				return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-			}
-			state.IdentityHint = clientKeyExchange.IdentityHint
-			preMasterSecret = prf.PSKPreMasterSecret(psk)
-		} else {
-			preMasterSecret, err = prf.PreMasterSecret(clientKeyExchange.PublicKey, state.localKeypair.PrivateKey, state.localKeypair.Curve)
-			if err != nil {
-				return 0, &alert.Alert{Level: alert.Fatal, Description: alert.IllegalParameter}, err
-			}
-		}
-
-		if state.extendedMasterSecret {
-			var sessionHash []byte
-			sessionHash, err = cache.sessionHash(state.cipherSuite.HashFunc(), cfg.initialEpoch)
-			if err != nil {
-				return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-			}
-
-			state.masterSecret, err = prf.ExtendedMasterSecret(preMasterSecret, sessionHash, state.cipherSuite.HashFunc())
-			if err != nil {
-				return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-			}
-		} else {
-			state.masterSecret, err = prf.MasterSecret(preMasterSecret, clientRandom[:], serverRandom[:], state.cipherSuite.HashFunc())
-			if err != nil {
-				return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-			}
-		}
-
-		if err := state.cipherSuite.Init(state.masterSecret, clientRandom[:], serverRandom[:], false); err != nil {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-		}
-		cfg.writeKeyLog(keyLogLabelTLS12, clientRandom[:], state.masterSecret)
-	}
-
-	// Now, encrypted packets can be handled
-	if err := c.handleQueuedPackets(ctx); err != nil {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-	}
-
-	seq, msgs, ok = cache.fullPullMap(seq,
-		handshakeCachePullRule{handshake.TypeFinished, cfg.initialEpoch + 1, true, false},
-	)
-	if !ok {
-		// No valid message received. Keep reading
-		return 0, nil, nil
-	}
-	state.handshakeRecvSequence = seq
-
-	if _, ok = msgs[handshake.TypeFinished].(*handshake.MessageFinished); !ok {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, nil
-	}
-
-	if state.cipherSuite.AuthenticationType() == CipherSuiteAuthenticationTypeAnonymous {
-		return flight6, nil, nil
-	}
-
-	switch cfg.clientAuth {
-	case RequireAnyClientCert:
-		if state.PeerCertificates == nil {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.NoCertificate}, errClientCertificateRequired
-		}
-	case VerifyClientCertIfGiven:
-		if state.PeerCertificates != nil && !state.peerCertificatesVerified {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.BadCertificate}, errClientCertificateNotVerified
-		}
-	case RequireAndVerifyClientCert:
-		if state.PeerCertificates == nil {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.NoCertificate}, errClientCertificateRequired
-		}
-		if !state.peerCertificatesVerified {
-			return 0, &alert.Alert{Level: alert.Fatal, Description: alert.BadCertificate}, errClientCertificateNotVerified
-		}
-	case NoClientCert, RequestClientCert:
-		return flight6, nil, nil
-	}
-
-	return flight6, nil, nil
-}
-
-func flight4Generate(c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) ([]*packet, *alert.Alert, error) {
-	extensions := []extension.Extension{&extension.RenegotiationInfo{
-		RenegotiatedConnection: 0,
-	}}
-	if (cfg.extendedMasterSecret == RequestExtendedMasterSecret ||
-		cfg.extendedMasterSecret == RequireExtendedMasterSecret) && state.extendedMasterSecret {
-		extensions = append(extensions, &extension.UseExtendedMasterSecret{
-			Supported: true,
-		})
-	}
-	if state.srtpProtectionProfile != 0 {
-		extensions = append(extensions, &extension.UseSRTP{
-			ProtectionProfiles: []SRTPProtectionProfile{state.srtpProtectionProfile},
-		})
-	}
-	if state.cipherSuite.AuthenticationType() == CipherSuiteAuthenticationTypeCertificate {
-		extensions = append(extensions, []extension.Extension{
-			&extension.SupportedEllipticCurves{
-				EllipticCurves: []elliptic.Curve{elliptic.X25519, elliptic.P256, elliptic.P384},
-			},
-			&extension.SupportedPointFormats{
-				PointFormats: []elliptic.CurvePointFormat{elliptic.CurvePointFormatUncompressed},
-			},
-		}...)
-	}
-
-	var pkts []*packet
-	cipherSuiteID := uint16(state.cipherSuite.ID())
-
-	pkts = append(pkts, &packet{
-		record: &recordlayer.RecordLayer{
-			Header: recordlayer.Header{
-				Version: protocol.Version1_2,
-			},
-			Content: &handshake.Handshake{
-				Message: &handshake.MessageServerHello{
-					Version:           protocol.Version1_2,
-					Random:            state.localRandom,
-					SessionID:         state.SessionID,
-					CipherSuiteID:     &cipherSuiteID,
-					CompressionMethod: defaultCompressionMethods()[0],
-					Extensions:        extensions,
-				},
-			},
-		},
-	})
-
-	// TODO 添加 CiscoCompat 支持
-	if cfg.localCiscoCompatCallback != nil {
-		if !state.cipherSuite.IsInitialized() {
-			serverRandom := state.localRandom.MarshalFixed()
-			clientRandom := state.remoteRandom.MarshalFixed()
-
-			if err := state.cipherSuite.Init(state.masterSecret, clientRandom[:], serverRandom[:], false); err != nil {
-				return nil, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-			}
-			cfg.writeKeyLog(keyLogLabelTLS12, clientRandom[:], state.masterSecret)
-		}
-		return pkts, nil, nil
-	}
-
-	switch {
-	case state.cipherSuite.AuthenticationType() == CipherSuiteAuthenticationTypeCertificate:
-		certificate, err := cfg.getCertificate(cfg.serverName)
-		if err != nil {
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.HandshakeFailure}, err
-		}
-
-		pkts = append(pkts, &packet{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Version: protocol.Version1_2,
-				},
-				Content: &handshake.Handshake{
-					Message: &handshake.MessageCertificate{
-						Certificate: certificate.Certificate,
-					},
-				},
-			},
-		})
-
-		serverRandom := state.localRandom.MarshalFixed()
-		clientRandom := state.remoteRandom.MarshalFixed()
-
-		// Find compatible signature scheme
-		signatureHashAlgo, err := signaturehash.SelectSignatureScheme(cfg.localSignatureSchemes, certificate.PrivateKey)
-		if err != nil {
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}, err
-		}
-
-		signature, err := generateKeySignature(clientRandom[:], serverRandom[:], state.localKeypair.PublicKey, state.namedCurve, certificate.PrivateKey, signatureHashAlgo.Hash)
-		if err != nil {
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-		}
-		state.localKeySignature = signature
-
-		pkts = append(pkts, &packet{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Version: protocol.Version1_2,
-				},
-				Content: &handshake.Handshake{
-					Message: &handshake.MessageServerKeyExchange{
-						EllipticCurveType:  elliptic.CurveTypeNamedCurve,
-						NamedCurve:         state.namedCurve,
-						PublicKey:          state.localKeypair.PublicKey,
-						HashAlgorithm:      signatureHashAlgo.Hash,
-						SignatureAlgorithm: signatureHashAlgo.Signature,
-						Signature:          state.localKeySignature,
-					},
-				},
-			},
-		})
-
-		if cfg.clientAuth > NoClientCert {
-			pkts = append(pkts, &packet{
-				record: &recordlayer.RecordLayer{
-					Header: recordlayer.Header{
-						Version: protocol.Version1_2,
-					},
-					Content: &handshake.Handshake{
-						Message: &handshake.MessageCertificateRequest{
-							CertificateTypes:        []clientcertificate.Type{clientcertificate.RSASign, clientcertificate.ECDSASign},
-							SignatureHashAlgorithms: cfg.localSignatureSchemes,
-						},
-					},
-				},
-			})
-		}
-	case cfg.localPSKIdentityHint != nil:
-		// To help the client in selecting which identity to use, the server
-		// can provide a "PSK identity hint" in the ServerKeyExchange message.
-		// If no hint is provided, the ServerKeyExchange message is omitted.
-		//
-		// https://tools.ietf.org/html/rfc4279#section-2
-		pkts = append(pkts, &packet{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Version: protocol.Version1_2,
-				},
-				Content: &handshake.Handshake{
-					Message: &handshake.MessageServerKeyExchange{
-						IdentityHint: cfg.localPSKIdentityHint,
-					},
-				},
-			},
-		})
-	case state.cipherSuite.AuthenticationType() == CipherSuiteAuthenticationTypeAnonymous:
-		pkts = append(pkts, &packet{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Version: protocol.Version1_2,
-				},
-				Content: &handshake.Handshake{
-					Message: &handshake.MessageServerKeyExchange{
-						EllipticCurveType: elliptic.CurveTypeNamedCurve,
-						NamedCurve:        state.namedCurve,
-						PublicKey:         state.localKeypair.PublicKey,
-					},
-				},
-			},
-		})
-	}
-
-	pkts = append(pkts, &packet{
-		record: &recordlayer.RecordLayer{
-			Header: recordlayer.Header{
-				Version: protocol.Version1_2,
-			},
-			Content: &handshake.Handshake{
-				Message: &handshake.MessageServerHelloDone{},
-			},
-		},
-	})
-
-	return pkts, nil, nil
-}
diff --git a/anylink/dtls-2.0.9/flight5handler.go b/anylink/dtls-2.0.9/flight5handler.go
deleted file mode 100644
index baa1d5c..0000000
--- a/anylink/dtls-2.0.9/flight5handler.go
+++ /dev/null
@@ -1,323 +0,0 @@
-package dtls
-
-import (
-	"bytes"
-	"context"
-	"crypto"
-	"crypto/x509"
-
-	"github.com/pion/dtls/v2/pkg/crypto/prf"
-	"github.com/pion/dtls/v2/pkg/crypto/signaturehash"
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-func flight5Parse(ctx context.Context, c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) (flightVal, *alert.Alert, error) {
-	_, msgs, ok := cache.fullPullMap(state.handshakeRecvSequence,
-		handshakeCachePullRule{handshake.TypeFinished, cfg.initialEpoch + 1, false, false},
-	)
-	if !ok {
-		// No valid message received. Keep reading
-		return 0, nil, nil
-	}
-
-	var finished *handshake.MessageFinished
-	if finished, ok = msgs[handshake.TypeFinished].(*handshake.MessageFinished); !ok {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, nil
-	}
-	plainText := cache.pullAndMerge(
-		handshakeCachePullRule{handshake.TypeClientHello, cfg.initialEpoch, true, false},
-		handshakeCachePullRule{handshake.TypeServerHello, cfg.initialEpoch, false, false},
-		handshakeCachePullRule{handshake.TypeCertificate, cfg.initialEpoch, false, false},
-		handshakeCachePullRule{handshake.TypeServerKeyExchange, cfg.initialEpoch, false, false},
-		handshakeCachePullRule{handshake.TypeCertificateRequest, cfg.initialEpoch, false, false},
-		handshakeCachePullRule{handshake.TypeServerHelloDone, cfg.initialEpoch, false, false},
-		handshakeCachePullRule{handshake.TypeCertificate, cfg.initialEpoch, true, false},
-		handshakeCachePullRule{handshake.TypeClientKeyExchange, cfg.initialEpoch, true, false},
-		handshakeCachePullRule{handshake.TypeCertificateVerify, cfg.initialEpoch, true, false},
-		handshakeCachePullRule{handshake.TypeFinished, cfg.initialEpoch + 1, true, false},
-	)
-
-	expectedVerifyData, err := prf.VerifyDataServer(state.masterSecret, plainText, state.cipherSuite.HashFunc())
-	if err != nil {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-	}
-	if !bytes.Equal(expectedVerifyData, finished.VerifyData) {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.HandshakeFailure}, errVerifyDataMismatch
-	}
-
-	return flight5, nil, nil
-}
-
-func flight5Generate(c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) ([]*packet, *alert.Alert, error) { //nolint:gocognit
-	var certBytes [][]byte
-	var privateKey crypto.PrivateKey
-	if len(cfg.localCertificates) > 0 {
-		certificate, err := cfg.getCertificate(cfg.serverName)
-		if err != nil {
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.HandshakeFailure}, err
-		}
-		certBytes = certificate.Certificate
-		privateKey = certificate.PrivateKey
-	}
-
-	var pkts []*packet
-
-	if state.remoteRequestedCertificate {
-		pkts = append(pkts,
-			&packet{
-				record: &recordlayer.RecordLayer{
-					Header: recordlayer.Header{
-						Version: protocol.Version1_2,
-					},
-					Content: &handshake.Handshake{
-						Message: &handshake.MessageCertificate{
-							Certificate: certBytes,
-						},
-					},
-				},
-			})
-	}
-
-	clientKeyExchange := &handshake.MessageClientKeyExchange{}
-	if cfg.localPSKCallback == nil {
-		clientKeyExchange.PublicKey = state.localKeypair.PublicKey
-	} else {
-		clientKeyExchange.IdentityHint = cfg.localPSKIdentityHint
-	}
-
-	pkts = append(pkts,
-		&packet{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Version: protocol.Version1_2,
-				},
-				Content: &handshake.Handshake{
-					Message: clientKeyExchange,
-				},
-			},
-		})
-
-	serverKeyExchangeData := cache.pullAndMerge(
-		handshakeCachePullRule{handshake.TypeServerKeyExchange, cfg.initialEpoch, false, false},
-	)
-
-	serverKeyExchange := &handshake.MessageServerKeyExchange{}
-
-	// handshakeMessageServerKeyExchange is optional for PSK
-	if len(serverKeyExchangeData) == 0 {
-		alertPtr, err := handleServerKeyExchange(c, state, cfg, &handshake.MessageServerKeyExchange{})
-		if err != nil {
-			return nil, alertPtr, err
-		}
-	} else {
-		rawHandshake := &handshake.Handshake{}
-		err := rawHandshake.Unmarshal(serverKeyExchangeData)
-		if err != nil {
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.UnexpectedMessage}, err
-		}
-
-		switch h := rawHandshake.Message.(type) {
-		case *handshake.MessageServerKeyExchange:
-			serverKeyExchange = h
-		default:
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.UnexpectedMessage}, errInvalidContentType
-		}
-	}
-
-	// Append not-yet-sent packets
-	merged := []byte{}
-	seqPred := uint16(state.handshakeSendSequence)
-	for _, p := range pkts {
-		h, ok := p.record.Content.(*handshake.Handshake)
-		if !ok {
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, errInvalidContentType
-		}
-		h.Header.MessageSequence = seqPred
-		seqPred++
-		raw, err := h.Marshal()
-		if err != nil {
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-		}
-		merged = append(merged, raw...)
-	}
-
-	if alertPtr, err := initalizeCipherSuite(state, cache, cfg, serverKeyExchange, merged); err != nil {
-		return nil, alertPtr, err
-	}
-
-	// If the client has sent a certificate with signing ability, a digitally-signed
-	// CertificateVerify message is sent to explicitly verify possession of the
-	// private key in the certificate.
-	if state.remoteRequestedCertificate && len(cfg.localCertificates) > 0 {
-		plainText := append(cache.pullAndMerge(
-			handshakeCachePullRule{handshake.TypeClientHello, cfg.initialEpoch, true, false},
-			handshakeCachePullRule{handshake.TypeServerHello, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificate, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeServerKeyExchange, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificateRequest, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeServerHelloDone, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificate, cfg.initialEpoch, true, false},
-			handshakeCachePullRule{handshake.TypeClientKeyExchange, cfg.initialEpoch, true, false},
-		), merged...)
-
-		// Find compatible signature scheme
-		signatureHashAlgo, err := signaturehash.SelectSignatureScheme(cfg.localSignatureSchemes, privateKey)
-		if err != nil {
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}, err
-		}
-
-		certVerify, err := generateCertificateVerify(plainText, privateKey, signatureHashAlgo.Hash)
-		if err != nil {
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-		}
-		state.localCertificatesVerify = certVerify
-
-		p := &packet{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Version: protocol.Version1_2,
-				},
-				Content: &handshake.Handshake{
-					Message: &handshake.MessageCertificateVerify{
-						HashAlgorithm:      signatureHashAlgo.Hash,
-						SignatureAlgorithm: signatureHashAlgo.Signature,
-						Signature:          state.localCertificatesVerify,
-					},
-				},
-			},
-		}
-		pkts = append(pkts, p)
-
-		h, ok := p.record.Content.(*handshake.Handshake)
-		if !ok {
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, errInvalidContentType
-		}
-		h.Header.MessageSequence = seqPred
-		// seqPred++ // this is the last use of seqPred
-		raw, err := h.Marshal()
-		if err != nil {
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-		}
-		merged = append(merged, raw...)
-	}
-
-	pkts = append(pkts,
-		&packet{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Version: protocol.Version1_2,
-				},
-				Content: &protocol.ChangeCipherSpec{},
-			},
-		})
-
-	if len(state.localVerifyData) == 0 {
-		plainText := cache.pullAndMerge(
-			handshakeCachePullRule{handshake.TypeClientHello, cfg.initialEpoch, true, false},
-			handshakeCachePullRule{handshake.TypeServerHello, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificate, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeServerKeyExchange, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificateRequest, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeServerHelloDone, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificate, cfg.initialEpoch, true, false},
-			handshakeCachePullRule{handshake.TypeClientKeyExchange, cfg.initialEpoch, true, false},
-			handshakeCachePullRule{handshake.TypeCertificateVerify, cfg.initialEpoch, true, false},
-			handshakeCachePullRule{handshake.TypeFinished, cfg.initialEpoch + 1, true, false},
-		)
-
-		var err error
-		state.localVerifyData, err = prf.VerifyDataClient(state.masterSecret, append(plainText, merged...), state.cipherSuite.HashFunc())
-		if err != nil {
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-		}
-	}
-
-	pkts = append(pkts,
-		&packet{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Version: protocol.Version1_2,
-					Epoch:   1,
-				},
-				Content: &handshake.Handshake{
-					Message: &handshake.MessageFinished{
-						VerifyData: state.localVerifyData,
-					},
-				},
-			},
-			shouldEncrypt:            true,
-			resetLocalSequenceNumber: true,
-		})
-
-	return pkts, nil, nil
-}
-
-func initalizeCipherSuite(state *State, cache *handshakeCache, cfg *handshakeConfig, h *handshake.MessageServerKeyExchange, sendingPlainText []byte) (*alert.Alert, error) { //nolint:gocognit
-	if state.cipherSuite.IsInitialized() {
-		return nil, nil
-	}
-
-	clientRandom := state.localRandom.MarshalFixed()
-	serverRandom := state.remoteRandom.MarshalFixed()
-
-	var err error
-
-	if state.extendedMasterSecret {
-		var sessionHash []byte
-		sessionHash, err = cache.sessionHash(state.cipherSuite.HashFunc(), cfg.initialEpoch, sendingPlainText)
-		if err != nil {
-			return &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-		}
-
-		state.masterSecret, err = prf.ExtendedMasterSecret(state.preMasterSecret, sessionHash, state.cipherSuite.HashFunc())
-		if err != nil {
-			return &alert.Alert{Level: alert.Fatal, Description: alert.IllegalParameter}, err
-		}
-	} else {
-		state.masterSecret, err = prf.MasterSecret(state.preMasterSecret, clientRandom[:], serverRandom[:], state.cipherSuite.HashFunc())
-		if err != nil {
-			return &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-		}
-	}
-
-	if state.cipherSuite.AuthenticationType() == CipherSuiteAuthenticationTypeCertificate {
-		// Verify that the pair of hash algorithm and signiture is listed.
-		var validSignatureScheme bool
-		for _, ss := range cfg.localSignatureSchemes {
-			if ss.Hash == h.HashAlgorithm && ss.Signature == h.SignatureAlgorithm {
-				validSignatureScheme = true
-				break
-			}
-		}
-		if !validSignatureScheme {
-			return &alert.Alert{Level: alert.Fatal, Description: alert.InsufficientSecurity}, errNoAvailableSignatureSchemes
-		}
-
-		expectedMsg := valueKeyMessage(clientRandom[:], serverRandom[:], h.PublicKey, h.NamedCurve)
-		if err = verifyKeySignature(expectedMsg, h.Signature, h.HashAlgorithm, state.PeerCertificates); err != nil {
-			return &alert.Alert{Level: alert.Fatal, Description: alert.BadCertificate}, err
-		}
-		var chains [][]*x509.Certificate
-		if !cfg.insecureSkipVerify {
-			if chains, err = verifyServerCert(state.PeerCertificates, cfg.rootCAs, cfg.serverName); err != nil {
-				return &alert.Alert{Level: alert.Fatal, Description: alert.BadCertificate}, err
-			}
-		}
-		if cfg.verifyPeerCertificate != nil {
-			if err = cfg.verifyPeerCertificate(state.PeerCertificates, chains); err != nil {
-				return &alert.Alert{Level: alert.Fatal, Description: alert.BadCertificate}, err
-			}
-		}
-	}
-
-	if err = state.cipherSuite.Init(state.masterSecret, clientRandom[:], serverRandom[:], true); err != nil {
-		return &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-	}
-
-	cfg.writeKeyLog(keyLogLabelTLS12, clientRandom[:], state.masterSecret)
-
-	return nil, nil
-}
diff --git a/anylink/dtls-2.0.9/flight6handler.go b/anylink/dtls-2.0.9/flight6handler.go
deleted file mode 100644
index 10de5ad..0000000
--- a/anylink/dtls-2.0.9/flight6handler.go
+++ /dev/null
@@ -1,82 +0,0 @@
-package dtls
-
-import (
-	"context"
-
-	"github.com/pion/dtls/v2/pkg/crypto/prf"
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-func flight6Parse(ctx context.Context, c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) (flightVal, *alert.Alert, error) {
-	_, msgs, ok := cache.fullPullMap(state.handshakeRecvSequence-1,
-		handshakeCachePullRule{handshake.TypeFinished, cfg.initialEpoch + 1, true, false},
-	)
-	if !ok {
-		// No valid message received. Keep reading
-		return 0, nil, nil
-	}
-
-	if _, ok = msgs[handshake.TypeFinished].(*handshake.MessageFinished); !ok {
-		return 0, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, nil
-	}
-
-	// Other party retransmitted the last flight.
-	return flight6, nil, nil
-}
-
-func flight6Generate(c flightConn, state *State, cache *handshakeCache, cfg *handshakeConfig) ([]*packet, *alert.Alert, error) {
-	var pkts []*packet
-
-	pkts = append(pkts,
-		&packet{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Version: protocol.Version1_2,
-				},
-				Content: &protocol.ChangeCipherSpec{},
-			},
-		})
-
-	if len(state.localVerifyData) == 0 {
-		plainText := cache.pullAndMerge(
-			handshakeCachePullRule{handshake.TypeClientHello, cfg.initialEpoch, true, false},
-			handshakeCachePullRule{handshake.TypeServerHello, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificate, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeServerKeyExchange, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificateRequest, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeServerHelloDone, cfg.initialEpoch, false, false},
-			handshakeCachePullRule{handshake.TypeCertificate, cfg.initialEpoch, true, false},
-			handshakeCachePullRule{handshake.TypeClientKeyExchange, cfg.initialEpoch, true, false},
-			handshakeCachePullRule{handshake.TypeCertificateVerify, cfg.initialEpoch, true, false},
-			handshakeCachePullRule{handshake.TypeFinished, cfg.initialEpoch + 1, true, false},
-		)
-
-		var err error
-		state.localVerifyData, err = prf.VerifyDataServer(state.masterSecret, plainText, state.cipherSuite.HashFunc())
-		if err != nil {
-			return nil, &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}, err
-		}
-	}
-
-	pkts = append(pkts,
-		&packet{
-			record: &recordlayer.RecordLayer{
-				Header: recordlayer.Header{
-					Version: protocol.Version1_2,
-					Epoch:   1,
-				},
-				Content: &handshake.Handshake{
-					Message: &handshake.MessageFinished{
-						VerifyData: state.localVerifyData,
-					},
-				},
-			},
-			shouldEncrypt:            true,
-			resetLocalSequenceNumber: true,
-		},
-	)
-	return pkts, nil, nil
-}
diff --git a/anylink/dtls-2.0.9/flighthandler.go b/anylink/dtls-2.0.9/flighthandler.go
deleted file mode 100644
index b364c09..0000000
--- a/anylink/dtls-2.0.9/flighthandler.go
+++ /dev/null
@@ -1,57 +0,0 @@
-package dtls
-
-import (
-	"context"
-
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-)
-
-// Parse received handshakes and return next flightVal
-type flightParser func(context.Context, flightConn, *State, *handshakeCache, *handshakeConfig) (flightVal, *alert.Alert, error)
-
-// Generate flights
-type flightGenerator func(flightConn, *State, *handshakeCache, *handshakeConfig) ([]*packet, *alert.Alert, error)
-
-func (f flightVal) getFlightParser() (flightParser, error) {
-	switch f {
-	case flight0:
-		return flight0Parse, nil
-	case flight1:
-		return flight1Parse, nil
-	case flight2:
-		return flight2Parse, nil
-	case flight3:
-		return flight3Parse, nil
-	case flight4:
-		return flight4Parse, nil
-	case flight5:
-		return flight5Parse, nil
-	case flight6:
-		return flight6Parse, nil
-	default:
-		return nil, errInvalidFlight
-	}
-}
-
-func (f flightVal) getFlightGenerator() (gen flightGenerator, retransmit bool, err error) {
-	switch f {
-	case flight0:
-		return flight0Generate, true, nil
-	case flight1:
-		return flight1Generate, true, nil
-	case flight2:
-		// https://tools.ietf.org/html/rfc6347#section-3.2.1
-		// HelloVerifyRequests must not be retransmitted.
-		return flight2Generate, false, nil
-	case flight3:
-		return flight3Generate, true, nil
-	case flight4:
-		return flight4Generate, true, nil
-	case flight5:
-		return flight5Generate, true, nil
-	case flight6:
-		return flight6Generate, true, nil
-	default:
-		return nil, false, errInvalidFlight
-	}
-}
diff --git a/anylink/dtls-2.0.9/fragment_buffer.go b/anylink/dtls-2.0.9/fragment_buffer.go
deleted file mode 100644
index 0274993..0000000
--- a/anylink/dtls-2.0.9/fragment_buffer.go
+++ /dev/null
@@ -1,111 +0,0 @@
-package dtls
-
-import (
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-type fragment struct {
-	recordLayerHeader recordlayer.Header
-	handshakeHeader   handshake.Header
-	data              []byte
-}
-
-type fragmentBuffer struct {
-	// map of MessageSequenceNumbers that hold slices of fragments
-	cache map[uint16][]*fragment
-
-	currentMessageSequenceNumber uint16
-}
-
-func newFragmentBuffer() *fragmentBuffer {
-	return &fragmentBuffer{cache: map[uint16][]*fragment{}}
-}
-
-// Attempts to push a DTLS packet to the fragmentBuffer
-// when it returns true it means the fragmentBuffer has inserted and the buffer shouldn't be handled
-// when an error returns it is fatal, and the DTLS connection should be stopped
-func (f *fragmentBuffer) push(buf []byte) (bool, error) {
-	frag := new(fragment)
-	if err := frag.recordLayerHeader.Unmarshal(buf); err != nil {
-		return false, err
-	}
-
-	// fragment isn't a handshake, we don't need to handle it
-	if frag.recordLayerHeader.ContentType != protocol.ContentTypeHandshake {
-		return false, nil
-	}
-
-	for buf = buf[recordlayer.HeaderSize:]; len(buf) != 0; frag = new(fragment) {
-		if err := frag.handshakeHeader.Unmarshal(buf); err != nil {
-			return false, err
-		}
-
-		if _, ok := f.cache[frag.handshakeHeader.MessageSequence]; !ok {
-			f.cache[frag.handshakeHeader.MessageSequence] = []*fragment{}
-		}
-
-		// end index should be the length of handshake header but if the handshake
-		// was fragmented, we should keep them all
-		end := int(handshake.HeaderLength + frag.handshakeHeader.Length)
-		if size := len(buf); end > size {
-			end = size
-		}
-
-		// Discard all headers, when rebuilding the packet we will re-build
-		frag.data = append([]byte{}, buf[handshake.HeaderLength:end]...)
-		f.cache[frag.handshakeHeader.MessageSequence] = append(f.cache[frag.handshakeHeader.MessageSequence], frag)
-		buf = buf[end:]
-	}
-
-	return true, nil
-}
-
-func (f *fragmentBuffer) pop() (content []byte, epoch uint16) {
-	frags, ok := f.cache[f.currentMessageSequenceNumber]
-	if !ok {
-		return nil, 0
-	}
-
-	// Go doesn't support recursive lambdas
-	var appendMessage func(targetOffset uint32) bool
-
-	rawMessage := []byte{}
-	appendMessage = func(targetOffset uint32) bool {
-		for _, f := range frags {
-			if f.handshakeHeader.FragmentOffset == targetOffset {
-				fragmentEnd := (f.handshakeHeader.FragmentOffset + f.handshakeHeader.FragmentLength)
-				if fragmentEnd != f.handshakeHeader.Length {
-					if !appendMessage(fragmentEnd) {
-						return false
-					}
-				}
-
-				rawMessage = append(f.data, rawMessage...)
-				return true
-			}
-		}
-		return false
-	}
-
-	// Recursively collect up
-	if !appendMessage(0) {
-		return nil, 0
-	}
-
-	firstHeader := frags[0].handshakeHeader
-	firstHeader.FragmentOffset = 0
-	firstHeader.FragmentLength = firstHeader.Length
-
-	rawHeader, err := firstHeader.Marshal()
-	if err != nil {
-		return nil, 0
-	}
-
-	messageEpoch := frags[0].recordLayerHeader.Epoch
-
-	delete(f.cache, f.currentMessageSequenceNumber)
-	f.currentMessageSequenceNumber++
-	return append(rawHeader, rawMessage...), messageEpoch
-}
diff --git a/anylink/dtls-2.0.9/fragment_buffer_test.go b/anylink/dtls-2.0.9/fragment_buffer_test.go
deleted file mode 100644
index 62c7ead..0000000
--- a/anylink/dtls-2.0.9/fragment_buffer_test.go
+++ /dev/null
@@ -1,101 +0,0 @@
-package dtls
-
-import (
-	"reflect"
-	"testing"
-)
-
-func TestFragmentBuffer(t *testing.T) {
-	for _, test := range []struct {
-		Name     string
-		In       [][]byte
-		Expected [][]byte
-		Epoch    uint16
-	}{
-		{
-			Name: "Single Fragment",
-			In: [][]byte{
-				{0x16, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xfe, 0xff, 0x00},
-			},
-			Expected: [][]byte{
-				{0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xfe, 0xff, 0x00},
-			},
-			Epoch: 0,
-		},
-		{
-			Name: "Single Fragment Epoch 3",
-			In: [][]byte{
-				{0x16, 0xfe, 0xff, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xfe, 0xff, 0x00},
-			},
-			Expected: [][]byte{
-				{0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xfe, 0xff, 0x00},
-			},
-			Epoch: 3,
-		},
-		{
-			Name: "Multiple Fragments",
-			In: [][]byte{
-				{0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0x0b, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x01, 0x02, 0x03, 0x04},
-				{0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0x0b, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x05, 0x05, 0x06, 0x07, 0x08, 0x09},
-				{0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0x0b, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x05, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E},
-			},
-			Expected: [][]byte{
-				{0x0b, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e},
-			},
-			Epoch: 0,
-		},
-		{
-			Name: "Multiple Unordered Fragments",
-			In: [][]byte{
-				{0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0x0b, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x01, 0x02, 0x03, 0x04},
-				{0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0x0b, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x05, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E},
-				{0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x81, 0x0b, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x05, 0x05, 0x06, 0x07, 0x08, 0x09},
-			},
-			Expected: [][]byte{
-				{0x0b, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e},
-			},
-			Epoch: 0,
-		},
-		{
-			Name: "Multiple Handshakes in Signle Fragment",
-			In: [][]byte{
-				{
-					0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x30, /* record header */
-					0x03, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xfe, 0xff, 0x01, 0x01, /*handshake msg 1*/
-					0x03, 0x00, 0x00, 0x04, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xfe, 0xff, 0x01, 0x01, /*handshake msg 2*/
-					0x03, 0x00, 0x00, 0x04, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xfe, 0xff, 0x01, 0x01, /*handshake msg 3*/
-				},
-			},
-			Expected: [][]byte{
-				{0x03, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xfe, 0xff, 0x01, 0x01},
-				{0x03, 0x00, 0x00, 0x04, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xfe, 0xff, 0x01, 0x01},
-				{0x03, 0x00, 0x00, 0x04, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xfe, 0xff, 0x01, 0x01},
-			},
-			Epoch: 0,
-		},
-	} {
-		fragmentBuffer := newFragmentBuffer()
-		for _, frag := range test.In {
-			status, err := fragmentBuffer.push(frag)
-			if err != nil {
-				t.Error(err)
-			} else if !status {
-				t.Errorf("fragmentBuffer didn't accept fragments for '%s'", test.Name)
-			}
-		}
-
-		for _, expected := range test.Expected {
-			out, epoch := fragmentBuffer.pop()
-			if !reflect.DeepEqual(out, expected) {
-				t.Errorf("fragmentBuffer '%s' push/pop: got % 02x, want % 02x", test.Name, out, expected)
-			}
-			if epoch != test.Epoch {
-				t.Errorf("fragmentBuffer returned wrong epoch: got %d, want %d", epoch, test.Epoch)
-			}
-		}
-
-		if frag, _ := fragmentBuffer.pop(); frag != nil {
-			t.Errorf("fragmentBuffer popped single buffer multiple times for '%s'", test.Name)
-		}
-	}
-}
diff --git a/anylink/dtls-2.0.9/fuzz.go b/anylink/dtls-2.0.9/fuzz.go
deleted file mode 100644
index 56c1bf2..0000000
--- a/anylink/dtls-2.0.9/fuzz.go
+++ /dev/null
@@ -1,38 +0,0 @@
-// +build gofuzz
-
-package dtls
-
-import "fmt"
-
-func partialHeaderMismatch(a, b recordlayer.Header) bool {
-	// Ignoring content length for now.
-	a.contentLen = b.contentLen
-	return a != b
-}
-
-func FuzzRecordLayer(data []byte) int {
-	var r recordLayer
-	if err := r.Unmarshal(data); err != nil {
-		return 0
-	}
-	buf, err := r.Marshal()
-	if err != nil {
-		return 1
-	}
-	if len(buf) == 0 {
-		panic("zero buff") // nolint
-	}
-	var nr recordLayer
-	if err = nr.Unmarshal(data); err != nil {
-		panic(err) // nolint
-	}
-	if partialHeaderMismatch(nr.recordlayer.Header, r.recordlayer.Header) {
-		panic( // nolint
-			fmt.Sprintf("header mismatch: %+v != %+v",
-				nr.recordlayer.Header, r.recordlayer.Header,
-			),
-		)
-	}
-
-	return 1
-}
diff --git a/anylink/dtls-2.0.9/fuzz/corpus/012178ca0830b7449ad370598d55873d81b95e40-25 b/anylink/dtls-2.0.9/fuzz/corpus/012178ca0830b7449ad370598d55873d81b95e40-25
deleted file mode 100644
index f82ac9a17f515ca94cba4160df6c271af30ec8e1..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgR!ZpQ9T2YHfCUOC}FTPF*h+WH8Qp^^vNtK$w_t1OEF?#
W-~dVh)i5#eg4t}W|5+Uv6gdFO^AoKA

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/01277073b27ccc6925ce4c941527f7b7705c8311-1 b/anylink/dtls-2.0.9/fuzz/corpus/01277073b27ccc6925ce4c941527f7b7705c8311-1
deleted file mode 100644
index 4756c7a..0000000
--- a/anylink/dtls-2.0.9/fuzz/corpus/01277073b27ccc6925ce4c941527f7b7705c8311-1
+++ /dev/null
@@ -1 +0,0 @@
-�12����[A51
\ No newline at end of file
diff --git a/anylink/dtls-2.0.9/fuzz/corpus/039192caed40959ac2f5c3254669312ba2dfbcad-12 b/anylink/dtls-2.0.9/fuzz/corpus/039192caed40959ac2f5c3254669312ba2dfbcad-12
deleted file mode 100644
index 3580e3c85ed253af66dbfa4eae2382164e926034..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 33
jcmWf8?w3=XlgUt$pRbU^&%nR|W&mkMMh2Gsd$kz=r&kDw

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/03a9bad270cf32520b5c3e99add47c648ba6150f-7 b/anylink/dtls-2.0.9/fuzz/corpus/03a9bad270cf32520b5c3e99add47c648ba6150f-7
deleted file mode 100644
index f3b959a0fd9b4d4afae80a3990bd93c808821fe6..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 25
acmWf;xOe~i{qI3UwE`mp2)t)V0g?c(Dhe6^

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/048fcd45b732d5bed912e6652bc265a0adaf5664-26 b/anylink/dtls-2.0.9/fuzz/corpus/048fcd45b732d5bed912e6652bc265a0adaf5664-26
deleted file mode 100644
index 40c5ce232ca658255b7ad9352483cf6737b721d8..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgR!ZiQ9T2YHfCVpC}FTPF*h+WH8Qp^^vNtK$w_t1OEH2-
X0M#%s@G`Km{%0^{bzm@MFy#OMzCjaV

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/04a28c0806a91267f0576e11d042400f41dc538b-12 b/anylink/dtls-2.0.9/fuzz/corpus/04a28c0806a91267f0576e11d042400f41dc538b-12
deleted file mode 100644
index a25e2a6a991a8d4a0477c0941f347e8807823077..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 28
fcmWf8?w3=XlgUt$&%?mL3`8#&6c|Cw7YqylYl#K*

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/04d00cfd50deb9ccd9d14be8c58f401a0414dad3-30 b/anylink/dtls-2.0.9/fuzz/corpus/04d00cfd50deb9ccd9d14be8c58f401a0414dad3-30
deleted file mode 100644
index 53a1acbdeb16bcfedd5af2dd4fb749c8dc16785e..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgR!Y80|*!!GcY)mFj$(Ho0ymy8Cw|oWR{fVq`Ky%7%>QQ
V042bxm>75&7&w617#R2%7y+4{5i<Y)

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/04e7f402f7d9f6ed2e664190dbd3267eddfddefa-6 b/anylink/dtls-2.0.9/fuzz/corpus/04e7f402f7d9f6ed2e664190dbd3267eddfddefa-6
deleted file mode 100644
index 3f7dfd3e3e5fc1efdeeb62d7fb45da66982f82e9..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 25
dcmWf;xOe~i{qI4<{`brb3=9tY-!r5DX#m8w3@!iw

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/057a8c627dc06c27296c8208265a9f8a32a8d4c2-19 b/anylink/dtls-2.0.9/fuzz/corpus/057a8c627dc06c27296c8208265a9f8a32a8d4c2-19
deleted file mode 100644
index 50846b2f1a43a89c64046d4936d1022ca9dc0cb6..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 33
icmWf8?w3>Sm#MCvpRbU^%fP@<!T<&wY^?uTK`a1`&jvaG

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/05a0d164b8e3ca08dc1bd077ce4aa4559731182b-15 b/anylink/dtls-2.0.9/fuzz/corpus/05a0d164b8e3ca08dc1bd077ce4aa4559731182b-15
deleted file mode 100644
index aa77799771005889339e6d4cb7dff26804f1bb01..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 33
lcmWf8?w3=XlgUt$FQ$;g&A`A>qQC$G91IMs3=B-#N&twJ1&9Cu

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/06148fe224720cd3a0497fc87f2b6bc5f004484a-30 b/anylink/dtls-2.0.9/fuzz/corpus/06148fe224720cd3a0497fc87f2b6bc5f004484a-30
deleted file mode 100644
index f80886b52902e61db04fa8e6247469cbc5366294..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgR!Y80|*!!GcY)mFj$(Ho0ymy8Cw|oWR{fVq`Ky%7%>QQ
V042bxm>75&7&w617#O%17y+4*5ibA$

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/078c2bd97a33002242f9d5ac0a95970c9432124a-31 b/anylink/dtls-2.0.9/fuzz/corpus/078c2bd97a33002242f9d5ac0a95970c9432124a-31
deleted file mode 100644
index ac541d3ce7ff06d9de16bf13d93251e3b9d7c663..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgR!Y80|*!!GcY)mFj$(Ho0ymy8Cw|oWR{fVq`Ky%7%>QQ
V042bxm>75&7&w61n1Kc`0sx?r6O#Y{

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/07ff33058f3c6732b9439f7d5c2bd50bb46adb31-20 b/anylink/dtls-2.0.9/fuzz/corpus/07ff33058f3c6732b9439f7d5c2bd50bb46adb31-20
deleted file mode 100644
index dd34c829037d46a10ee0bf1340337eea167b022e..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 38
hcmWf8?w3>Sm#MCvpRbU^%fP@}!T<(9CMP2t005$n1xNq@

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/08f2f7719e35261f615174917101cba578892f43-11 b/anylink/dtls-2.0.9/fuzz/corpus/08f2f7719e35261f615174917101cba578892f43-11
deleted file mode 100644
index c6911cbca8da92198fdcabd30df890806ba1b317..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 28
dcmWf8?w3=XlgUt$pRd5k!@$7&f&oS|004D127&+p

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/09b742837cf0d26ddecb5dbf536d91db6d1e9855-12 b/anylink/dtls-2.0.9/fuzz/corpus/09b742837cf0d26ddecb5dbf536d91db6d1e9855-12
deleted file mode 100644
index c41903165f943d7a955a02a3bd901b6485358554..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 33
kcmWf8?w3=XlgUt$pRbU^&%nR|W&mkM#{KX2@6~1i0I+BZG5`Po

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/0a3bff70743f3cc7ecdc293887c10e14e152dec2-19 b/anylink/dtls-2.0.9/fuzz/corpus/0a3bff70743f3cc7ecdc293887c10e14e152dec2-19
deleted file mode 100644
index 73bb16ae25a0a4401c299ea3bb4b297d363d44db..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 33
kcmWf8?w3>Sm#MCvpRbU^%fP@<!T<&wtc;8f3=Rwo0EwOjvH$=8

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/11e7b0e2a84f99b2f3f367cf546dde345bba563f-15 b/anylink/dtls-2.0.9/fuzz/corpus/11e7b0e2a84f99b2f3f367cf546dde345bba563f-15
deleted file mode 100644
index 3f8d0aabc42b3fd71aa0e5de72d5ff5f3ffb1b75..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 28
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diff --git a/anylink/dtls-2.0.9/fuzz/corpus/dcc90b5ab9129ee3effd438c0a86bfe599ccfe17-8 b/anylink/dtls-2.0.9/fuzz/corpus/dcc90b5ab9129ee3effd438c0a86bfe599ccfe17-8
deleted file mode 100644
index 67c4addf8285f6c9c17aede60fee269d309d34d2..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 25
bcmWf8?w3=XlgUt$pRW+g%)kI<<N#>^XvhYr

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/dd5c198fd08276fdba3f48884659199dceeaa2ac-2 b/anylink/dtls-2.0.9/fuzz/corpus/dd5c198fd08276fdba3f48884659199dceeaa2ac-2
deleted file mode 100644
index 871fdba..0000000
--- a/anylink/dtls-2.0.9/fuzz/corpus/dd5c198fd08276fdba3f48884659199dceeaa2ac-2
+++ /dev/null
@@ -1 +0,0 @@
-�.lslice length too larg
\ No newline at end of file
diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e0d111660feb6004db7815eb0231fdb369517970-11 b/anylink/dtls-2.0.9/fuzz/corpus/e0d111660feb6004db7815eb0231fdb369517970-11
deleted file mode 100644
index 370ba20fbf560b7c61e3e5aba1cea8b253b84c93..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 33
kcmWf8?w3=XlgUt$pRbU^&%nR|W&ml%{d?c<->c040JV+^?f?J)

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e11fc30ee640e45e8185f384f9a116cf2cb75852-8 b/anylink/dtls-2.0.9/fuzz/corpus/e11fc30ee640e45e8185f384f9a116cf2cb75852-8
deleted file mode 100644
index 87bca42eb140d5f6d685b9397bbbd1f90e0f2b5f..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 25
gcmWf;xOe;e{pa`YXV}00Jre^1gTwy!3@Jbw0J5qJ761SM

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e124a66686755a3fe635b2bb6dc05849238ff474-28 b/anylink/dtls-2.0.9/fuzz/corpus/e124a66686755a3fe635b2bb6dc05849238ff474-28
deleted file mode 100644
index 7b768363aae4171e7b1fce4fb16df200c72220f0..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgR!Y80|*!!GcY)mFj$(Ho0ymy8Cw|oWR{fVq`Ky%7%>QQ
T042bxm>75&7&zEi!Nh+6n)wny

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e17dcda547abfa37685bb9d570a7bf9c4a34affc-35 b/anylink/dtls-2.0.9/fuzz/corpus/e17dcda547abfa37685bb9d570a7bf9c4a34affc-35
deleted file mode 100644
index 62e99543bccf15856a1bfc55c9e4f87ccdbea669..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgRv<S0|*!!Gcc5t<fI1VnV6V@7_NCKMhwCnB@C7jc?Mnv
V1`dV;+6T0C84hqA;M&W;1OUiN6%zme

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e1a87e2698fcd50fdee9d425ba22cca94e82e689-31 b/anylink/dtls-2.0.9/fuzz/corpus/e1a87e2698fcd50fdee9d425ba22cca94e82e689-31
deleted file mode 100644
index 7f13584cc69a5ccf9b1e8ec300124f53819b333a..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgR!YG0|*!csgjbMRM$Kc6H_B&3qzkw2sg!uL71b2!4j;B
Ri9wcufrEkTz+MI*69Cg*6YBr~

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e1f7de47792fed4f34a0a790cc688d43d75e80fd-34 b/anylink/dtls-2.0.9/fuzz/corpus/e1f7de47792fed4f34a0a790cc688d43d75e80fd-34
deleted file mode 100644
index 68423d26b31fa6a8f528ea17c712c84c297b1c09..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgR!Y80|*!!Gn6=#Fj$(J8yYnj8Cw|oWR{fVq%v4~n46fG
Q8ZlUcRdF$Jz}XB80Jk0zC;$Ke

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e4d81d83c175232de004db3750b8509a3dc26cf7-27 b/anylink/dtls-2.0.9/fuzz/corpus/e4d81d83c175232de004db3750b8509a3dc26cf7-27
deleted file mode 100644
index f6a9fc106d33ea300e6f3eeb2a8077e1caf6eb44..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgR!ZpQ9T2YHfCUOC}FTPF*h+WH8Qp^^vNtK$w_t1OEF?#
V-~dVh)i5#eg4t}W|A9P34gks86KDVc

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e5d083d83bb534c47f170509f84be51d847c9d95-2 b/anylink/dtls-2.0.9/fuzz/corpus/e5d083d83bb534c47f170509f84be51d847c9d95-2
deleted file mode 100644
index c8b8f38..0000000
--- a/anylink/dtls-2.0.9/fuzz/corpus/e5d083d83bb534c47f170509f84be51d847c9d95-2
+++ /dev/null
@@ -1 +0,0 @@
-�1r1rA2���[
\ No newline at end of file
diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e69a5e78519e11f948112f68197d2f0d469c60b2-28 b/anylink/dtls-2.0.9/fuzz/corpus/e69a5e78519e11f948112f68197d2f0d469c60b2-28
deleted file mode 100644
index f1c98a0ddb982e152e1bd46974107b9e9fa8d432..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgR!ZpQ9T2YHfCUOC}FTPH8(LaH8Qp^^vNtK$w`F?FjxZB
TFfs5lFmRMGu(AGUXaMp7!T%F)

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e7e0aec1e8718877cd61405d0b73cb8eea7830dd-2 b/anylink/dtls-2.0.9/fuzz/corpus/e7e0aec1e8718877cd61405d0b73cb8eea7830dd-2
deleted file mode 100644
index 0cb0c1c..0000000
--- a/anylink/dtls-2.0.9/fuzz/corpus/e7e0aec1e8718877cd61405d0b73cb8eea7830dd-2
+++ /dev/null
@@ -1 +0,0 @@
-�1<JPrior�td

\ No newline at end of file
diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e87d088c1b0796bcbfa649c9118329bf4fabd6f2-29 b/anylink/dtls-2.0.9/fuzz/corpus/e87d088c1b0796bcbfa649c9118329bf4fabd6f2-29
deleted file mode 100644
index bc5d2f7ab88c98dc0df29b737ef4ad29610606e2..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgR!Y80|*!!GcY)mFj$(Ho0ymy8Cw|oWR{fVq`Ky%7%>QQ
X042bxm>75&7&sWX4(w%QVEqpOqVE&0

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e8ad70294942e6f8c25bb01fd4443cfba4fb0308-19 b/anylink/dtls-2.0.9/fuzz/corpus/e8ad70294942e6f8c25bb01fd4443cfba4fb0308-19
deleted file mode 100644
index f5f4f6a69d4dba3b3b3118de1f9556c32c79982c..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 38
jcmWf8?w3>Sm#MCvpRbU^%fP@}!T<(9CMN?YBNPAtqRa(P

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e9895a39481476548887cbbb88835ba4318e41af-33 b/anylink/dtls-2.0.9/fuzz/corpus/e9895a39481476548887cbbb88835ba4318e41af-33
deleted file mode 100644
index 4a1832a8d1e2b63a20959720f0bef5c7a4b79975..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgRv<S0|*!!Gcc5t<fI1VnV6V@7_NCKMhwCnB@C7jc?Mnv
Q1`dV;TnD%y<X#3Q0K_L0tN;K2

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/e9f3d28570e1c59dd81975f281b00374ad3f400e-28 b/anylink/dtls-2.0.9/fuzz/corpus/e9f3d28570e1c59dd81975f281b00374ad3f400e-28
deleted file mode 100644
index d2ee19c527fe76c0897277a5631b45a7e1601d42..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgR!ZiQ9T2YHfCVpC}FTPF*h+WH43&c^vNtK$w_t1OECgV
T{0FLGVBlpi1wmE^5Xk`m%#stQ

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/ea855f2d2933b53de04f93ed49d95f5fbc1777df-3 b/anylink/dtls-2.0.9/fuzz/corpus/ea855f2d2933b53de04f93ed49d95f5fbc1777df-3
deleted file mode 100644
index c83965176e641e4c1850f6b6c13382912fc400d6..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 14
VcmWf!urM*UG%_?&U@$ah1OO6-0zUu%

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/eaa0e2396b6d857d3121c691ca35c10f54644ba5-3 b/anylink/dtls-2.0.9/fuzz/corpus/eaa0e2396b6d857d3121c691ca35c10f54644ba5-3
deleted file mode 100644
index 5c316d25c799c22a9bf79999e4cf117393967f62..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 25
ccmWf;xOe~i{qI4<{`c?q?*$=-z3zJN0q-&qzW@LL

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/eab6d99255628b1b14f5f565e9f94e9f4042ba25-5 b/anylink/dtls-2.0.9/fuzz/corpus/eab6d99255628b1b14f5f565e9f94e9f4042ba25-5
deleted file mode 100644
index 27296687cefe3fbefe091e74685706d8c846edbf..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 25
dcmWf;xOe~i{qI4<{`c=07#JM(zh_7R(g4rK4H^Id

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/ed8baf884f660e13648b822dbc20c23ececbb6d9-14 b/anylink/dtls-2.0.9/fuzz/corpus/ed8baf884f660e13648b822dbc20c23ececbb6d9-14
deleted file mode 100644
index f1c10cadabd58d37cb20130400936e3be77be928..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 33
ncmWf8?w8Y$lPOS=pRbU^%fP@<Qk?%U5lAyIFfs1mt91_mwh#(b

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/ee7bc26e98a2e3fc02a8fac80ec94b8fe56d5852-26 b/anylink/dtls-2.0.9/fuzz/corpus/ee7bc26e98a2e3fc02a8fac80ec94b8fe56d5852-26
deleted file mode 100644
index bec17c8424f020a3b25b1556b9579d300a26aa53..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf8?w3>S*R8IUpRbU^#K2%|YRUit#zy8Q3}%*=Cgvt4rbfmVhCZ1kB{`|CdFl#j
Y`9%sPKqb5krVRBA93>2FU>&9m0H#q7UjP6A

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/f248a7b971b1fd07ea978e776fda73fee276d36d-17 b/anylink/dtls-2.0.9/fuzz/corpus/f248a7b971b1fd07ea978e776fda73fee276d36d-17
deleted file mode 100644
index f27cbf5e3483567b3029af75d4a3c7d834668d90..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 33
mcmWf8?w8Y$lPT~oKVKn-mw|z!M1cVWI2ah1llSk{x(5KM83`Z&

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/f3fc999fcd5f3f9f4d4cf2c4151d0bc6ef73c3cb-1 b/anylink/dtls-2.0.9/fuzz/corpus/f3fc999fcd5f3f9f4d4cf2c4151d0bc6ef73c3cb-1
deleted file mode 100644
index 7a0244b..0000000
--- a/anylink/dtls-2.0.9/fuzz/corpus/f3fc999fcd5f3f9f4d4cf2c4151d0bc6ef73c3cb-1
+++ /dev/null
@@ -1 +0,0 @@
-decoding uint
\ No newline at end of file
diff --git a/anylink/dtls-2.0.9/fuzz/corpus/f8781259866be1553ac9625d18ff25ce354776ec-23 b/anylink/dtls-2.0.9/fuzz/corpus/f8781259866be1553ac9625d18ff25ce354776ec-23
deleted file mode 100644
index 76fc3f8a9a489f98f4d5ea8a61efd44753895b0d..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 76
zcmWf;xOe~i{qI3UwE`mpgR!ZpQ9T2YHfCVpC}FTPF*h+WH8Qp^^vNtK$w_t1OEH2-
T0M#%s@PgTFtp8aZ7!)}Gz*7@*

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/fa9ec5dd9ba00a696cb5217fd7455fe79c6610e4-18 b/anylink/dtls-2.0.9/fuzz/corpus/fa9ec5dd9ba00a696cb5217fd7455fe79c6610e4-18
deleted file mode 100644
index a8c7d9398983ddee9977fc9724a5f609cf06f7fc..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 33
kcmWf8?w8Y$lPT~oKVKn-mw|z!M1cVWI2ah18G+y)0HLu58vp<R

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/fc3952e202a374d090fd4008d43183630a4b8dc2-15 b/anylink/dtls-2.0.9/fuzz/corpus/fc3952e202a374d090fd4008d43183630a4b8dc2-15
deleted file mode 100644
index 2957816fac04104864314ebaa09a6527d8d69585..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 33
lcmWf8?w3=XlgUt$FQ$;g&A`A>qQC$G91IMs3=B-#DFBGq1<C*b

diff --git a/anylink/dtls-2.0.9/fuzz/corpus/fdef7b51eb11668569ef1b45ba193becb956b2e7-15 b/anylink/dtls-2.0.9/fuzz/corpus/fdef7b51eb11668569ef1b45ba193becb956b2e7-15
deleted file mode 100644
index 6baabc6dc36381943c1491d0ee6cb57ac84cce39..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 33
ncmWf8?w3>Sm#MCvpRbU^%fP@<(vbfz5lAyLFf#1lt91_mtndl}

diff --git a/anylink/dtls-2.0.9/go.mod b/anylink/dtls-2.0.9/go.mod
deleted file mode 100644
index d3c660a..0000000
--- a/anylink/dtls-2.0.9/go.mod
+++ /dev/null
@@ -1,12 +0,0 @@
-module github.com/pion/dtls/v2
-
-require (
-	github.com/pion/logging v0.2.2
-	github.com/pion/transport v0.12.3
-	github.com/pion/udp v0.1.1
-	golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2
-	golang.org/x/net v0.0.0-20210331212208-0fccb6fa2b5c
-	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1
-)
-
-go 1.13
diff --git a/anylink/dtls-2.0.9/go.sum b/anylink/dtls-2.0.9/go.sum
deleted file mode 100644
index df09e4c..0000000
--- a/anylink/dtls-2.0.9/go.sum
+++ /dev/null
@@ -1,40 +0,0 @@
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/pion/logging v0.2.2 h1:M9+AIj/+pxNsDfAT64+MAVgJO0rsyLnoJKCqf//DoeY=
-github.com/pion/logging v0.2.2/go.mod h1:k0/tDVsRCX2Mb2ZEmTqNa7CWsQPc+YYCB7Q+5pahoms=
-github.com/pion/transport v0.12.2/go.mod h1:N3+vZQD9HlDP5GWkZ85LohxNsDcNgofQmyL6ojX5d8Q=
-github.com/pion/transport v0.12.3 h1:vdBfvfU/0Wq8kd2yhUMSDB/x+O4Z9MYVl2fJ5BT4JZw=
-github.com/pion/transport v0.12.3/go.mod h1:OViWW9SP2peE/HbwBvARicmAVnesphkNkCVZIWJ6q9A=
-github.com/pion/udp v0.1.1 h1:8UAPvyqmsxK8oOjloDk4wUt63TzFe9WEJkg5lChlj7o=
-github.com/pion/udp v0.1.1/go.mod h1:6AFo+CMdKQm7UiA0eUPA8/eVCTx8jBIITLZHc9DWX5M=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2 h1:It14KIkyBFYkHkwZ7k45minvA9aorojkyjGk9KJ5B/w=
-golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
-golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20201201195509-5d6afe98e0b7/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20210331212208-0fccb6fa2b5c h1:KHUzaHIpjWVlVVNh65G3hhuj3KB1HnjY6Cq5cTvRQT8=
-golang.org/x/net v0.0.0-20210331212208-0fccb6fa2b5c/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/anylink/dtls-2.0.9/handshake_cache.go b/anylink/dtls-2.0.9/handshake_cache.go
deleted file mode 100644
index 063a858..0000000
--- a/anylink/dtls-2.0.9/handshake_cache.go
+++ /dev/null
@@ -1,171 +0,0 @@
-package dtls
-
-import (
-	"sync"
-
-	"github.com/pion/dtls/v2/pkg/crypto/prf"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-)
-
-type handshakeCacheItem struct {
-	typ             handshake.Type
-	isClient        bool
-	epoch           uint16
-	messageSequence uint16
-	data            []byte
-}
-
-type handshakeCachePullRule struct {
-	typ      handshake.Type
-	epoch    uint16
-	isClient bool
-	optional bool
-}
-
-type handshakeCache struct {
-	cache []*handshakeCacheItem
-	mu    sync.Mutex
-}
-
-func newHandshakeCache() *handshakeCache {
-	return &handshakeCache{}
-}
-
-func (h *handshakeCache) push(data []byte, epoch, messageSequence uint16, typ handshake.Type, isClient bool) bool { //nolint
-	h.mu.Lock()
-	defer h.mu.Unlock()
-
-	for _, i := range h.cache {
-		if i.messageSequence == messageSequence &&
-			i.isClient == isClient {
-			return false
-		}
-	}
-
-	h.cache = append(h.cache, &handshakeCacheItem{
-		data:            append([]byte{}, data...),
-		epoch:           epoch,
-		messageSequence: messageSequence,
-		typ:             typ,
-		isClient:        isClient,
-	})
-	return true
-}
-
-// returns a list handshakes that match the requested rules
-// the list will contain null entries for rules that can't be satisfied
-// multiple entries may match a rule, but only the last match is returned (ie ClientHello with cookies)
-func (h *handshakeCache) pull(rules ...handshakeCachePullRule) []*handshakeCacheItem {
-	h.mu.Lock()
-	defer h.mu.Unlock()
-
-	out := make([]*handshakeCacheItem, len(rules))
-	for i, r := range rules {
-		for _, c := range h.cache {
-			if c.typ == r.typ && c.isClient == r.isClient && c.epoch == r.epoch {
-				switch {
-				case out[i] == nil:
-					out[i] = c
-				case out[i].messageSequence < c.messageSequence:
-					out[i] = c
-				}
-			}
-		}
-	}
-
-	return out
-}
-
-// fullPullMap pulls all handshakes between rules[0] to rules[len(rules)-1] as map.
-func (h *handshakeCache) fullPullMap(startSeq int, rules ...handshakeCachePullRule) (int, map[handshake.Type]handshake.Message, bool) {
-	h.mu.Lock()
-	defer h.mu.Unlock()
-
-	ci := make(map[handshake.Type]*handshakeCacheItem)
-	for _, r := range rules {
-		var item *handshakeCacheItem
-		for _, c := range h.cache {
-			if c.typ == r.typ && c.isClient == r.isClient && c.epoch == r.epoch {
-				switch {
-				case item == nil:
-					item = c
-				case item.messageSequence < c.messageSequence:
-					item = c
-				}
-			}
-		}
-		if !r.optional && item == nil {
-			// Missing mandatory message.
-			return startSeq, nil, false
-		}
-		ci[r.typ] = item
-	}
-	out := make(map[handshake.Type]handshake.Message)
-	seq := startSeq
-	for _, r := range rules {
-		t := r.typ
-		i := ci[t]
-		if i == nil {
-			continue
-		}
-		rawHandshake := &handshake.Handshake{}
-		if err := rawHandshake.Unmarshal(i.data); err != nil {
-			return startSeq, nil, false
-		}
-		if uint16(seq) != rawHandshake.Header.MessageSequence {
-			// There is a gap. Some messages are not arrived.
-			return startSeq, nil, false
-		}
-		seq++
-		out[t] = rawHandshake.Message
-	}
-	return seq, out, true
-}
-
-// pullAndMerge calls pull and then merges the results, ignoring any null entries
-func (h *handshakeCache) pullAndMerge(rules ...handshakeCachePullRule) []byte {
-	merged := []byte{}
-
-	for _, p := range h.pull(rules...) {
-		if p != nil {
-			merged = append(merged, p.data...)
-		}
-	}
-	return merged
-}
-
-// sessionHash returns the session hash for Extended Master Secret support
-// https://tools.ietf.org/html/draft-ietf-tls-session-hash-06#section-4
-func (h *handshakeCache) sessionHash(hf prf.HashFunc, epoch uint16, additional ...[]byte) ([]byte, error) {
-	merged := []byte{}
-
-	// Order defined by https://tools.ietf.org/html/rfc5246#section-7.3
-	handshakeBuffer := h.pull(
-		handshakeCachePullRule{handshake.TypeClientHello, epoch, true, false},
-		handshakeCachePullRule{handshake.TypeServerHello, epoch, false, false},
-		handshakeCachePullRule{handshake.TypeCertificate, epoch, false, false},
-		handshakeCachePullRule{handshake.TypeServerKeyExchange, epoch, false, false},
-		handshakeCachePullRule{handshake.TypeCertificateRequest, epoch, false, false},
-		handshakeCachePullRule{handshake.TypeServerHelloDone, epoch, false, false},
-		handshakeCachePullRule{handshake.TypeCertificate, epoch, true, false},
-		handshakeCachePullRule{handshake.TypeClientKeyExchange, epoch, true, false},
-	)
-
-	for _, p := range handshakeBuffer {
-		if p == nil {
-			continue
-		}
-
-		merged = append(merged, p.data...)
-	}
-	for _, a := range additional {
-		merged = append(merged, a...)
-	}
-
-	hash := hf()
-	if _, err := hash.Write(merged); err != nil {
-		return []byte{}, err
-	}
-
-	return hash.Sum(nil), nil
-}
diff --git a/anylink/dtls-2.0.9/handshake_cache_test.go b/anylink/dtls-2.0.9/handshake_cache_test.go
deleted file mode 100644
index d985177..0000000
--- a/anylink/dtls-2.0.9/handshake_cache_test.go
+++ /dev/null
@@ -1,210 +0,0 @@
-package dtls
-
-import (
-	"bytes"
-	"testing"
-
-	"github.com/pion/dtls/v2/internal/ciphersuite"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-)
-
-func TestHandshakeCacheSinglePush(t *testing.T) {
-	for _, test := range []struct {
-		Name     string
-		Rule     []handshakeCachePullRule
-		Input    []handshakeCacheItem
-		Expected []byte
-	}{
-		{
-			Name: "Single Push",
-			Input: []handshakeCacheItem{
-				{0, true, 0, 0, []byte{0x00}},
-			},
-			Rule: []handshakeCachePullRule{
-				{0, 0, true, false},
-			},
-			Expected: []byte{0x00},
-		},
-		{
-			Name: "Multi Push",
-			Input: []handshakeCacheItem{
-				{0, true, 0, 0, []byte{0x00}},
-				{1, true, 0, 1, []byte{0x01}},
-				{2, true, 0, 2, []byte{0x02}},
-			},
-			Rule: []handshakeCachePullRule{
-				{0, 0, true, false},
-				{1, 0, true, false},
-				{2, 0, true, false},
-			},
-			Expected: []byte{0x00, 0x01, 0x02},
-		},
-		{
-			Name: "Multi Push, Rules set order",
-			Input: []handshakeCacheItem{
-				{2, true, 0, 2, []byte{0x02}},
-				{0, true, 0, 0, []byte{0x00}},
-				{1, true, 0, 1, []byte{0x01}},
-			},
-			Rule: []handshakeCachePullRule{
-				{0, 0, true, false},
-				{1, 0, true, false},
-				{2, 0, true, false},
-			},
-			Expected: []byte{0x00, 0x01, 0x02},
-		},
-
-		{
-			Name: "Multi Push, Dupe Seqnum",
-			Input: []handshakeCacheItem{
-				{0, true, 0, 0, []byte{0x00}},
-				{1, true, 0, 1, []byte{0x01}},
-				{1, true, 0, 1, []byte{0x01}},
-			},
-			Rule: []handshakeCachePullRule{
-				{0, 0, true, false},
-				{1, 0, true, false},
-			},
-			Expected: []byte{0x00, 0x01},
-		},
-		{
-			Name: "Multi Push, Dupe Seqnum Client/Server",
-			Input: []handshakeCacheItem{
-				{0, true, 0, 0, []byte{0x00}},
-				{1, true, 0, 1, []byte{0x01}},
-				{1, false, 0, 1, []byte{0x02}},
-			},
-			Rule: []handshakeCachePullRule{
-				{0, 0, true, false},
-				{1, 0, true, false},
-				{1, 0, false, false},
-			},
-			Expected: []byte{0x00, 0x01, 0x02},
-		},
-		{
-			Name: "Multi Push, Dupe Seqnum with Unique HandshakeType",
-			Input: []handshakeCacheItem{
-				{1, true, 0, 0, []byte{0x00}},
-				{2, true, 0, 1, []byte{0x01}},
-				{3, false, 0, 0, []byte{0x02}},
-			},
-			Rule: []handshakeCachePullRule{
-				{1, 0, true, false},
-				{2, 0, true, false},
-				{3, 0, false, false},
-			},
-			Expected: []byte{0x00, 0x01, 0x02},
-		},
-		{
-			Name: "Multi Push, Wrong epoch",
-			Input: []handshakeCacheItem{
-				{1, true, 0, 0, []byte{0x00}},
-				{2, true, 1, 1, []byte{0x01}},
-				{2, true, 0, 2, []byte{0x11}},
-				{3, false, 0, 0, []byte{0x02}},
-				{3, false, 1, 0, []byte{0x12}},
-				{3, false, 2, 0, []byte{0x12}},
-			},
-			Rule: []handshakeCachePullRule{
-				{1, 0, true, false},
-				{2, 1, true, false},
-				{3, 0, false, false},
-			},
-			Expected: []byte{0x00, 0x01, 0x02},
-		},
-	} {
-		h := newHandshakeCache()
-		for _, i := range test.Input {
-			h.push(i.data, i.epoch, i.messageSequence, i.typ, i.isClient)
-		}
-		verifyData := h.pullAndMerge(test.Rule...)
-		if !bytes.Equal(verifyData, test.Expected) {
-			t.Errorf("handshakeCache '%s' exp: % 02x actual % 02x", test.Name, test.Expected, verifyData)
-		}
-	}
-}
-
-func TestHandshakeCacheSessionHash(t *testing.T) {
-	for _, test := range []struct {
-		Name     string
-		Rule     []handshakeCachePullRule
-		Input    []handshakeCacheItem
-		Expected []byte
-	}{
-		{
-			Name: "Standard Handshake",
-			Input: []handshakeCacheItem{
-				{handshake.TypeClientHello, true, 0, 0, []byte{0x00}},
-				{handshake.TypeServerHello, false, 0, 1, []byte{0x01}},
-				{handshake.TypeCertificate, false, 0, 2, []byte{0x02}},
-				{handshake.TypeServerKeyExchange, false, 0, 3, []byte{0x03}},
-				{handshake.TypeServerHelloDone, false, 0, 4, []byte{0x04}},
-				{handshake.TypeClientKeyExchange, true, 0, 5, []byte{0x05}},
-			},
-			Expected: []byte{0x17, 0xe8, 0x8d, 0xb1, 0x87, 0xaf, 0xd6, 0x2c, 0x16, 0xe5, 0xde, 0xbf, 0x3e, 0x65, 0x27, 0xcd, 0x00, 0x6b, 0xc0, 0x12, 0xbc, 0x90, 0xb5, 0x1a, 0x81, 0x0c, 0xd8, 0x0c, 0x2d, 0x51, 0x1f, 0x43},
-		},
-		{
-			Name: "Handshake With Client Cert Request",
-			Input: []handshakeCacheItem{
-				{handshake.TypeClientHello, true, 0, 0, []byte{0x00}},
-				{handshake.TypeServerHello, false, 0, 1, []byte{0x01}},
-				{handshake.TypeCertificate, false, 0, 2, []byte{0x02}},
-				{handshake.TypeServerKeyExchange, false, 0, 3, []byte{0x03}},
-				{handshake.TypeCertificateRequest, false, 0, 4, []byte{0x04}},
-				{handshake.TypeServerHelloDone, false, 0, 5, []byte{0x05}},
-				{handshake.TypeClientKeyExchange, true, 0, 6, []byte{0x06}},
-			},
-			Expected: []byte{0x57, 0x35, 0x5a, 0xc3, 0x30, 0x3c, 0x14, 0x8f, 0x11, 0xae, 0xf7, 0xcb, 0x17, 0x94, 0x56, 0xb9, 0x23, 0x2c, 0xde, 0x33, 0xa8, 0x18, 0xdf, 0xda, 0x2c, 0x2f, 0xcb, 0x93, 0x25, 0x74, 0x9a, 0x6b},
-		},
-		{
-			Name: "Handshake Ignores after ClientKeyExchange",
-			Input: []handshakeCacheItem{
-				{handshake.TypeClientHello, true, 0, 0, []byte{0x00}},
-				{handshake.TypeServerHello, false, 0, 1, []byte{0x01}},
-				{handshake.TypeCertificate, false, 0, 2, []byte{0x02}},
-				{handshake.TypeServerKeyExchange, false, 0, 3, []byte{0x03}},
-				{handshake.TypeCertificateRequest, false, 0, 4, []byte{0x04}},
-				{handshake.TypeServerHelloDone, false, 0, 5, []byte{0x05}},
-				{handshake.TypeClientKeyExchange, true, 0, 6, []byte{0x06}},
-				{handshake.TypeCertificateVerify, true, 0, 7, []byte{0x07}},
-				{handshake.TypeFinished, true, 1, 7, []byte{0x08}},
-				{handshake.TypeFinished, false, 1, 7, []byte{0x09}},
-			},
-			Expected: []byte{0x57, 0x35, 0x5a, 0xc3, 0x30, 0x3c, 0x14, 0x8f, 0x11, 0xae, 0xf7, 0xcb, 0x17, 0x94, 0x56, 0xb9, 0x23, 0x2c, 0xde, 0x33, 0xa8, 0x18, 0xdf, 0xda, 0x2c, 0x2f, 0xcb, 0x93, 0x25, 0x74, 0x9a, 0x6b},
-		},
-		{
-			Name: "Handshake Ignores wrong epoch",
-			Input: []handshakeCacheItem{
-				{handshake.TypeClientHello, true, 0, 0, []byte{0x00}},
-				{handshake.TypeServerHello, false, 0, 1, []byte{0x01}},
-				{handshake.TypeCertificate, false, 0, 2, []byte{0x02}},
-				{handshake.TypeServerKeyExchange, false, 0, 3, []byte{0x03}},
-				{handshake.TypeCertificateRequest, false, 0, 4, []byte{0x04}},
-				{handshake.TypeServerHelloDone, false, 0, 5, []byte{0x05}},
-				{handshake.TypeClientKeyExchange, true, 0, 6, []byte{0x06}},
-				{handshake.TypeCertificateVerify, true, 0, 7, []byte{0x07}},
-				{handshake.TypeFinished, true, 0, 7, []byte{0xf0}},
-				{handshake.TypeFinished, false, 0, 7, []byte{0xf1}},
-				{handshake.TypeFinished, true, 1, 7, []byte{0x08}},
-				{handshake.TypeFinished, false, 1, 7, []byte{0x09}},
-				{handshake.TypeFinished, true, 0, 7, []byte{0xf0}},
-				{handshake.TypeFinished, false, 0, 7, []byte{0xf1}},
-			},
-			Expected: []byte{0x57, 0x35, 0x5a, 0xc3, 0x30, 0x3c, 0x14, 0x8f, 0x11, 0xae, 0xf7, 0xcb, 0x17, 0x94, 0x56, 0xb9, 0x23, 0x2c, 0xde, 0x33, 0xa8, 0x18, 0xdf, 0xda, 0x2c, 0x2f, 0xcb, 0x93, 0x25, 0x74, 0x9a, 0x6b},
-		},
-	} {
-		h := newHandshakeCache()
-		for _, i := range test.Input {
-			h.push(i.data, i.epoch, i.messageSequence, i.typ, i.isClient)
-		}
-
-		cipherSuite := ciphersuite.TLSEcdheEcdsaWithAes128GcmSha256{}
-		verifyData, err := h.sessionHash(cipherSuite.HashFunc(), 0)
-		if err != nil {
-			t.Error(err)
-		}
-		if !bytes.Equal(verifyData, test.Expected) {
-			t.Errorf("handshakeCacheSesssionHassh '%s' exp: % 02x actual % 02x", test.Name, test.Expected, verifyData)
-		}
-	}
-}
diff --git a/anylink/dtls-2.0.9/handshake_test.go b/anylink/dtls-2.0.9/handshake_test.go
deleted file mode 100644
index 2174d21..0000000
--- a/anylink/dtls-2.0.9/handshake_test.go
+++ /dev/null
@@ -1,52 +0,0 @@
-package dtls
-
-import (
-	"reflect"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/extension"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-)
-
-func TestHandshakeMessage(t *testing.T) {
-	rawHandshakeMessage := []byte{
-		0x01, 0x00, 0x00, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x29, 0xfe, 0xfd, 0xb6,
-		0x2f, 0xce, 0x5c, 0x42, 0x54, 0xff, 0x86, 0xe1, 0x24, 0x41, 0x91, 0x42, 0x62, 0x15, 0xad,
-		0x16, 0xc9, 0x15, 0x8d, 0x95, 0x71, 0x8a, 0xbb, 0x22, 0xd7, 0x47, 0xec, 0xd8, 0x3d, 0xdc,
-		0x4b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	}
-	parsedHandshake := &handshake.Handshake{
-		Header: handshake.Header{
-			Length:         0x29,
-			FragmentLength: 0x29,
-			Type:           handshake.TypeClientHello,
-		},
-		Message: &handshake.MessageClientHello{
-			Version: protocol.Version{Major: 0xFE, Minor: 0xFD},
-			Random: handshake.Random{
-				GMTUnixTime: time.Unix(3056586332, 0),
-				RandomBytes: [28]byte{0x42, 0x54, 0xff, 0x86, 0xe1, 0x24, 0x41, 0x91, 0x42, 0x62, 0x15, 0xad, 0x16, 0xc9, 0x15, 0x8d, 0x95, 0x71, 0x8a, 0xbb, 0x22, 0xd7, 0x47, 0xec, 0xd8, 0x3d, 0xdc, 0x4b},
-			},
-			Cookie:             []byte{},
-			CipherSuiteIDs:     []uint16{},
-			CompressionMethods: []*protocol.CompressionMethod{},
-			Extensions:         []extension.Extension{},
-		},
-	}
-
-	h := &handshake.Handshake{}
-	if err := h.Unmarshal(rawHandshakeMessage); err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(h, parsedHandshake) {
-		t.Errorf("handshakeMessageClientHello unmarshal: got %#v, want %#v", h, parsedHandshake)
-	}
-
-	raw, err := h.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawHandshakeMessage) {
-		t.Errorf("handshakeMessageClientHello marshal: got %#v, want %#v", raw, rawHandshakeMessage)
-	}
-}
diff --git a/anylink/dtls-2.0.9/handshaker.go b/anylink/dtls-2.0.9/handshaker.go
deleted file mode 100644
index cea256c..0000000
--- a/anylink/dtls-2.0.9/handshaker.go
+++ /dev/null
@@ -1,343 +0,0 @@
-package dtls
-
-import (
-	"context"
-	"crypto/tls"
-	"crypto/x509"
-	"fmt"
-	"io"
-	"sync"
-	"time"
-
-	"github.com/pion/dtls/v2/pkg/crypto/signaturehash"
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-	"github.com/pion/logging"
-)
-
-// [RFC6347 Section-4.2.4]
-//                      +-----------+
-//                +---> | PREPARING | <--------------------+
-//                |     +-----------+                      |
-//                |           |                            |
-//                |           | Buffer next flight         |
-//                |           |                            |
-//                |          \|/                           |
-//                |     +-----------+                      |
-//                |     |  SENDING  |<------------------+  | Send
-//                |     +-----------+                   |  | HelloRequest
-//        Receive |           |                         |  |
-//           next |           | Send flight             |  | or
-//         flight |  +--------+                         |  |
-//                |  |        | Set retransmit timer    |  | Receive
-//                |  |       \|/                        |  | HelloRequest
-//                |  |  +-----------+                   |  | Send
-//                +--)--|  WAITING  |-------------------+  | ClientHello
-//                |  |  +-----------+   Timer expires   |  |
-//                |  |         |                        |  |
-//                |  |         +------------------------+  |
-//        Receive |  | Send           Read retransmit      |
-//           last |  | last                                |
-//         flight |  | flight                              |
-//                |  |                                     |
-//               \|/\|/                                    |
-//            +-----------+                                |
-//            | FINISHED  | -------------------------------+
-//            +-----------+
-//                 |  /|\
-//                 |   |
-//                 +---+
-//              Read retransmit
-//           Retransmit last flight
-
-type handshakeState uint8
-
-const (
-	handshakeErrored handshakeState = iota
-	handshakePreparing
-	handshakeSending
-	handshakeWaiting
-	handshakeFinished
-)
-
-func (s handshakeState) String() string {
-	switch s {
-	case handshakeErrored:
-		return "Errored"
-	case handshakePreparing:
-		return "Preparing"
-	case handshakeSending:
-		return "Sending"
-	case handshakeWaiting:
-		return "Waiting"
-	case handshakeFinished:
-		return "Finished"
-	default:
-		return "Unknown"
-	}
-}
-
-type handshakeFSM struct {
-	currentFlight flightVal
-	flights       []*packet
-	retransmit    bool
-	state         *State
-	cache         *handshakeCache
-	cfg           *handshakeConfig
-	closed        chan struct{}
-}
-
-type handshakeConfig struct {
-	localPSKCallback            PSKCallback
-	localPSKIdentityHint        []byte
-	localCiscoCompatCallback    PSKCallback               // TODO add cisco anyconnect support
-	localCipherSuites           []CipherSuite             // Available CipherSuites
-	localSignatureSchemes       []signaturehash.Algorithm // Available signature schemes
-	extendedMasterSecret        ExtendedMasterSecretType  // Policy for the Extended Master Support extension
-	localSRTPProtectionProfiles []SRTPProtectionProfile   // Available SRTPProtectionProfiles, if empty no SRTP support
-	serverName                  string
-	clientAuth                  ClientAuthType // If we are a client should we request a client certificate
-	localCertificates           []tls.Certificate
-	nameToCertificate           map[string]*tls.Certificate
-	insecureSkipVerify          bool
-	verifyPeerCertificate       func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error
-	rootCAs                     *x509.CertPool
-	clientCAs                   *x509.CertPool
-	retransmitInterval          time.Duration
-	customCipherSuites          func() []CipherSuite
-
-	onFlightState func(flightVal, handshakeState)
-	log           logging.LeveledLogger
-	keyLogWriter  io.Writer
-
-	initialEpoch uint16
-
-	mu sync.Mutex
-}
-
-type flightConn interface {
-	notify(ctx context.Context, level alert.Level, desc alert.Description) error
-	writePackets(context.Context, []*packet) error
-	recvHandshake() <-chan chan struct{}
-	setLocalEpoch(epoch uint16)
-	handleQueuedPackets(context.Context) error
-}
-
-func (c *handshakeConfig) writeKeyLog(label string, clientRandom, secret []byte) {
-	if c.keyLogWriter == nil {
-		return
-	}
-	c.mu.Lock()
-	defer c.mu.Unlock()
-	_, err := c.keyLogWriter.Write([]byte(fmt.Sprintf("%s %x %x\n", label, clientRandom, secret)))
-	if err != nil {
-		c.log.Debugf("failed to write key log file: %s", err)
-	}
-}
-
-func srvCliStr(isClient bool) string {
-	if isClient {
-		return "client"
-	}
-	return "server"
-}
-
-func newHandshakeFSM(
-	s *State, cache *handshakeCache, cfg *handshakeConfig,
-	initialFlight flightVal,
-) *handshakeFSM {
-	return &handshakeFSM{
-		currentFlight: initialFlight,
-		state:         s,
-		cache:         cache,
-		cfg:           cfg,
-		closed:        make(chan struct{}),
-	}
-}
-
-func (s *handshakeFSM) Run(ctx context.Context, c flightConn, initialState handshakeState) error {
-	state := initialState
-	defer func() {
-		close(s.closed)
-	}()
-	for {
-		s.cfg.log.Tracef("[handshake:%s] %s: %s", srvCliStr(s.state.isClient), s.currentFlight.String(), state.String())
-		if s.cfg.onFlightState != nil {
-			s.cfg.onFlightState(s.currentFlight, state)
-		}
-		var err error
-		switch state {
-		case handshakePreparing:
-			state, err = s.prepare(ctx, c)
-		case handshakeSending:
-			state, err = s.send(ctx, c)
-		case handshakeWaiting:
-			state, err = s.wait(ctx, c)
-		case handshakeFinished:
-			state, err = s.finish(ctx, c)
-		default:
-			return errInvalidFSMTransition
-		}
-		if err != nil {
-			return err
-		}
-
-		// TODO 添加 CiscoCompat 支持
-		if s.cfg.localCiscoCompatCallback != nil {
-			if s.currentFlight == flight4 && state == handshakeWaiting {
-				s.currentFlight = flight6
-				state = handshakePreparing
-			}
-		}
-	}
-}
-
-func (s *handshakeFSM) Done() <-chan struct{} {
-	return s.closed
-}
-
-func (s *handshakeFSM) prepare(ctx context.Context, c flightConn) (handshakeState, error) {
-	s.flights = nil
-	// Prepare flights
-	var (
-		a    *alert.Alert
-		err  error
-		pkts []*packet
-	)
-	gen, retransmit, errFlight := s.currentFlight.getFlightGenerator()
-	if errFlight != nil {
-		err = errFlight
-		a = &alert.Alert{Level: alert.Fatal, Description: alert.InternalError}
-	} else {
-		pkts, a, err = gen(c, s.state, s.cache, s.cfg)
-		s.retransmit = retransmit
-	}
-	if a != nil {
-		if alertErr := c.notify(ctx, a.Level, a.Description); alertErr != nil {
-			if err != nil {
-				err = alertErr
-			}
-		}
-	}
-	if err != nil {
-		return handshakeErrored, err
-	}
-
-	s.flights = pkts
-	epoch := s.cfg.initialEpoch
-	nextEpoch := epoch
-	for _, p := range s.flights {
-		p.record.Header.Epoch += epoch
-		if p.record.Header.Epoch > nextEpoch {
-			nextEpoch = p.record.Header.Epoch
-		}
-		if h, ok := p.record.Content.(*handshake.Handshake); ok {
-			h.Header.MessageSequence = uint16(s.state.handshakeSendSequence)
-			s.state.handshakeSendSequence++
-		}
-	}
-	if epoch != nextEpoch {
-		s.cfg.log.Tracef("[handshake:%s] -> changeCipherSpec (epoch: %d)", srvCliStr(s.state.isClient), nextEpoch)
-		c.setLocalEpoch(nextEpoch)
-	}
-	return handshakeSending, nil
-}
-
-func (s *handshakeFSM) send(ctx context.Context, c flightConn) (handshakeState, error) {
-	// Send flights
-	if err := c.writePackets(ctx, s.flights); err != nil {
-		return handshakeErrored, err
-	}
-
-	if s.currentFlight.isLastSendFlight() {
-		return handshakeFinished, nil
-	}
-	return handshakeWaiting, nil
-}
-
-func (s *handshakeFSM) wait(ctx context.Context, c flightConn) (handshakeState, error) { //nolint:gocognit
-	parse, errFlight := s.currentFlight.getFlightParser()
-	if errFlight != nil {
-		if alertErr := c.notify(ctx, alert.Fatal, alert.InternalError); alertErr != nil {
-			if errFlight != nil {
-				return handshakeErrored, alertErr
-			}
-		}
-		return handshakeErrored, errFlight
-	}
-
-	retransmitTimer := time.NewTimer(s.cfg.retransmitInterval)
-	for {
-		select {
-		case done := <-c.recvHandshake():
-			nextFlight, alert, err := parse(ctx, c, s.state, s.cache, s.cfg)
-			close(done)
-			if alert != nil {
-				if alertErr := c.notify(ctx, alert.Level, alert.Description); alertErr != nil {
-					if err != nil {
-						err = alertErr
-					}
-				}
-			}
-			if err != nil {
-				return handshakeErrored, err
-			}
-			if nextFlight == 0 {
-				break
-			}
-			s.cfg.log.Tracef("[handshake:%s] %s -> %s", srvCliStr(s.state.isClient), s.currentFlight.String(), nextFlight.String())
-			if nextFlight.isLastRecvFlight() && s.currentFlight == nextFlight {
-				return handshakeFinished, nil
-			}
-			s.currentFlight = nextFlight
-			return handshakePreparing, nil
-
-		case <-retransmitTimer.C:
-			if !s.retransmit {
-				return handshakeWaiting, nil
-			}
-			return handshakeSending, nil
-		case <-ctx.Done():
-			return handshakeErrored, ctx.Err()
-		}
-	}
-}
-
-func (s *handshakeFSM) finish(ctx context.Context, c flightConn) (handshakeState, error) {
-	parse, errFlight := s.currentFlight.getFlightParser()
-	if errFlight != nil {
-		if alertErr := c.notify(ctx, alert.Fatal, alert.InternalError); alertErr != nil {
-			if errFlight != nil {
-				return handshakeErrored, alertErr
-			}
-		}
-		return handshakeErrored, errFlight
-	}
-
-	retransmitTimer := time.NewTimer(s.cfg.retransmitInterval)
-	select {
-	case done := <-c.recvHandshake():
-		nextFlight, alert, err := parse(ctx, c, s.state, s.cache, s.cfg)
-		close(done)
-		if alert != nil {
-			if alertErr := c.notify(ctx, alert.Level, alert.Description); alertErr != nil {
-				if err != nil {
-					err = alertErr
-				}
-			}
-		}
-		if err != nil {
-			return handshakeErrored, err
-		}
-		if nextFlight == 0 {
-			break
-		}
-		<-retransmitTimer.C
-		// Retransmit last flight
-		return handshakeSending, nil
-
-	case <-ctx.Done():
-		return handshakeErrored, ctx.Err()
-	}
-	return handshakeFinished, nil
-}
diff --git a/anylink/dtls-2.0.9/handshaker_test.go b/anylink/dtls-2.0.9/handshaker_test.go
deleted file mode 100644
index d26b987..0000000
--- a/anylink/dtls-2.0.9/handshaker_test.go
+++ /dev/null
@@ -1,277 +0,0 @@
-package dtls
-
-import (
-	"bytes"
-	"context"
-	"crypto/tls"
-	"sync"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2/pkg/crypto/selfsign"
-	"github.com/pion/dtls/v2/pkg/crypto/signaturehash"
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-	"github.com/pion/logging"
-	"github.com/pion/transport/test"
-)
-
-const nonZeroRetransmitInterval = 100 * time.Millisecond
-
-// Test that writes to the key log are in the correct format and only applies
-// when a key log writer is given.
-func TestWriteKeyLog(t *testing.T) {
-	var buf bytes.Buffer
-	cfg := handshakeConfig{
-		keyLogWriter: &buf,
-	}
-	cfg.writeKeyLog("LABEL", []byte{0xAA, 0xBB, 0xCC}, []byte{0xDD, 0xEE, 0xFF})
-
-	// Secrets follow the format <Label> <space> <ClientRandom> <space> <Secret>
-	// https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format
-	want := "LABEL aabbcc ddeeff\n"
-	if buf.String() != want {
-		t.Fatalf("Got %s want %s", buf.String(), want)
-	}
-
-	// no key log writer = no writes
-	cfg = handshakeConfig{}
-	cfg.writeKeyLog("LABEL", []byte{0xAA, 0xBB, 0xCC}, []byte{0xDD, 0xEE, 0xFF})
-}
-
-func TestHandshaker(t *testing.T) {
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	loggerFactory := logging.NewDefaultLoggerFactory()
-	logger := loggerFactory.NewLogger("dtls")
-
-	cipherSuites, err := parseCipherSuites(nil, nil, true, false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	clientCert, err := selfsign.GenerateSelfSigned()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	genFilters := map[string]func() (packetFilter, packetFilter, func(t *testing.T)){
-		"PassThrough": func() (packetFilter, packetFilter, func(t *testing.T)) {
-			return nil, nil, nil
-		},
-		"HelloVerifyRequestLost": func() (packetFilter, packetFilter, func(t *testing.T)) {
-			var (
-				cntHelloVerifyRequest  = 0
-				cntClientHelloNoCookie = 0
-			)
-			const helloVerifyDrop = 5
-			return func(p *packet) bool {
-					h, ok := p.record.Content.(*handshake.Handshake)
-					if !ok {
-						return true
-					}
-					if hmch, ok := h.Message.(*handshake.MessageClientHello); ok {
-						if len(hmch.Cookie) == 0 {
-							cntClientHelloNoCookie++
-						}
-					}
-					return true
-				},
-				func(p *packet) bool {
-					h, ok := p.record.Content.(*handshake.Handshake)
-					if !ok {
-						return true
-					}
-					if _, ok := h.Message.(*handshake.MessageHelloVerifyRequest); ok {
-						cntHelloVerifyRequest++
-						return cntHelloVerifyRequest > helloVerifyDrop
-					}
-					return true
-				},
-				func(t *testing.T) {
-					if cntHelloVerifyRequest != helloVerifyDrop+1 {
-						t.Errorf("Number of HelloVerifyRequest retransmit is wrong, expected: %d times, got: %d times", helloVerifyDrop+1, cntHelloVerifyRequest)
-					}
-					if cntClientHelloNoCookie != cntHelloVerifyRequest {
-						t.Errorf(
-							"HelloVerifyRequest must be triggered only by ClientHello, but HelloVerifyRequest was sent %d times and ClientHello was sent %d times",
-							cntHelloVerifyRequest, cntClientHelloNoCookie,
-						)
-					}
-				}
-		},
-	}
-
-	for name, filters := range genFilters {
-		f1, f2, report := filters()
-		t.Run(name, func(t *testing.T) {
-			ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-			defer cancel()
-
-			if report != nil {
-				defer report(t)
-			}
-
-			ca, cb := flightTestPipe(ctx, f1, f2)
-			ca.state.isClient = true
-
-			var wg sync.WaitGroup
-			wg.Add(2)
-
-			ctxCliFinished, cancelCli := context.WithCancel(ctx)
-			ctxSrvFinished, cancelSrv := context.WithCancel(ctx)
-			go func() {
-				defer wg.Done()
-				cfg := &handshakeConfig{
-					localCipherSuites:     cipherSuites,
-					localCertificates:     []tls.Certificate{clientCert},
-					localSignatureSchemes: signaturehash.Algorithms(),
-					insecureSkipVerify:    true,
-					log:                   logger,
-					onFlightState: func(f flightVal, s handshakeState) {
-						if s == handshakeFinished {
-							cancelCli()
-						}
-					},
-					retransmitInterval: nonZeroRetransmitInterval,
-				}
-
-				fsm := newHandshakeFSM(&ca.state, ca.handshakeCache, cfg, flight1)
-				switch err := fsm.Run(ctx, ca, handshakePreparing); err {
-				case context.Canceled:
-				case context.DeadlineExceeded:
-					t.Error("Timeout")
-				default:
-					t.Error(err)
-				}
-			}()
-
-			go func() {
-				defer wg.Done()
-				cfg := &handshakeConfig{
-					localCipherSuites:     cipherSuites,
-					localCertificates:     []tls.Certificate{clientCert},
-					localSignatureSchemes: signaturehash.Algorithms(),
-					insecureSkipVerify:    true,
-					log:                   logger,
-					onFlightState: func(f flightVal, s handshakeState) {
-						if s == handshakeFinished {
-							cancelSrv()
-						}
-					},
-					retransmitInterval: nonZeroRetransmitInterval,
-				}
-
-				fsm := newHandshakeFSM(&cb.state, cb.handshakeCache, cfg, flight0)
-				switch err := fsm.Run(ctx, cb, handshakePreparing); err {
-				case context.Canceled:
-				case context.DeadlineExceeded:
-					t.Error("Timeout")
-				default:
-					t.Error(err)
-				}
-			}()
-
-			<-ctxCliFinished.Done()
-			<-ctxSrvFinished.Done()
-
-			cancel()
-			wg.Wait()
-		})
-	}
-}
-
-type packetFilter func(*packet) bool
-
-func flightTestPipe(ctx context.Context, filter1 packetFilter, filter2 packetFilter) (*flightTestConn, *flightTestConn) {
-	ca := newHandshakeCache()
-	cb := newHandshakeCache()
-	chA := make(chan chan struct{})
-	chB := make(chan chan struct{})
-	return &flightTestConn{
-			handshakeCache: ca,
-			otherEndCache:  cb,
-			recv:           chA,
-			otherEndRecv:   chB,
-			done:           ctx.Done(),
-			filter:         filter1,
-		}, &flightTestConn{
-			handshakeCache: cb,
-			otherEndCache:  ca,
-			recv:           chB,
-			otherEndRecv:   chA,
-			done:           ctx.Done(),
-			filter:         filter2,
-		}
-}
-
-type flightTestConn struct {
-	state          State
-	handshakeCache *handshakeCache
-	recv           chan chan struct{}
-	done           <-chan struct{}
-	epoch          uint16
-
-	filter packetFilter
-
-	otherEndCache *handshakeCache
-	otherEndRecv  chan chan struct{}
-}
-
-func (c *flightTestConn) recvHandshake() <-chan chan struct{} {
-	return c.recv
-}
-
-func (c *flightTestConn) setLocalEpoch(epoch uint16) {
-	c.epoch = epoch
-}
-
-func (c *flightTestConn) notify(ctx context.Context, level alert.Level, desc alert.Description) error {
-	return nil
-}
-
-func (c *flightTestConn) writePackets(ctx context.Context, pkts []*packet) error {
-	for _, p := range pkts {
-		if c.filter != nil && !c.filter(p) {
-			continue
-		}
-		if h, ok := p.record.Content.(*handshake.Handshake); ok {
-			handshakeRaw, err := p.record.Marshal()
-			if err != nil {
-				return err
-			}
-
-			c.handshakeCache.push(handshakeRaw[recordlayer.HeaderSize:], p.record.Header.Epoch, h.Header.MessageSequence, h.Header.Type, c.state.isClient)
-
-			content, err := h.Message.Marshal()
-			if err != nil {
-				return err
-			}
-			h.Header.Length = uint32(len(content))
-			h.Header.FragmentLength = uint32(len(content))
-			hdr, err := h.Header.Marshal()
-			if err != nil {
-				return err
-			}
-			c.otherEndCache.push(
-				append(hdr, content...), p.record.Header.Epoch, h.Header.MessageSequence, h.Header.Type, c.state.isClient)
-		}
-	}
-	go func() {
-		select {
-		case c.otherEndRecv <- make(chan struct{}):
-		case <-c.done:
-		}
-	}()
-
-	// Avoid deadlock on JS/WASM environment due to context switch problem.
-	time.Sleep(10 * time.Millisecond)
-
-	return nil
-}
-
-func (c *flightTestConn) handleQueuedPackets(ctx context.Context) error {
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/internal/ciphersuite/aes_128_ccm.go b/anylink/dtls-2.0.9/internal/ciphersuite/aes_128_ccm.go
deleted file mode 100644
index dcc5379..0000000
--- a/anylink/dtls-2.0.9/internal/ciphersuite/aes_128_ccm.go
+++ /dev/null
@@ -1,108 +0,0 @@
-package ciphersuite
-
-import (
-	"crypto/sha256"
-	"fmt"
-	"hash"
-	"sync/atomic"
-
-	"github.com/pion/dtls/v2/pkg/crypto/ciphersuite"
-	"github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-	"github.com/pion/dtls/v2/pkg/crypto/prf"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-// Aes128Ccm is a base class used by multiple AES-CCM Ciphers
-type Aes128Ccm struct {
-	ccm                   atomic.Value // *cryptoCCM
-	clientCertificateType clientcertificate.Type
-	id                    ID
-	psk                   bool
-	cryptoCCMTagLen       ciphersuite.CCMTagLen
-}
-
-func newAes128Ccm(clientCertificateType clientcertificate.Type, id ID, psk bool, cryptoCCMTagLen ciphersuite.CCMTagLen) *Aes128Ccm {
-	return &Aes128Ccm{
-		clientCertificateType: clientCertificateType,
-		id:                    id,
-		psk:                   psk,
-		cryptoCCMTagLen:       cryptoCCMTagLen,
-	}
-}
-
-// CertificateType returns what type of certificate this CipherSuite exchanges
-func (c *Aes128Ccm) CertificateType() clientcertificate.Type {
-	return c.clientCertificateType
-}
-
-// ID returns the ID of the CipherSuite
-func (c *Aes128Ccm) ID() ID {
-	return c.id
-}
-
-func (c *Aes128Ccm) String() string {
-	return c.id.String()
-}
-
-// HashFunc returns the hashing func for this CipherSuite
-func (c *Aes128Ccm) HashFunc() func() hash.Hash {
-	return sha256.New
-}
-
-// AuthenticationType controls what authentication method is using during the handshake
-func (c *Aes128Ccm) AuthenticationType() AuthenticationType {
-	if c.psk {
-		return AuthenticationTypePreSharedKey
-	}
-	return AuthenticationTypeCertificate
-}
-
-// IsInitialized returns if the CipherSuite has keying material and can
-// encrypt/decrypt packets
-func (c *Aes128Ccm) IsInitialized() bool {
-	return c.ccm.Load() != nil
-}
-
-// Init initializes the internal Cipher with keying material
-func (c *Aes128Ccm) Init(masterSecret, clientRandom, serverRandom []byte, isClient bool) error {
-	const (
-		prfMacLen = 0
-		prfKeyLen = 16
-		prfIvLen  = 4
-	)
-
-	keys, err := prf.GenerateEncryptionKeys(masterSecret, clientRandom, serverRandom, prfMacLen, prfKeyLen, prfIvLen, c.HashFunc())
-	if err != nil {
-		return err
-	}
-
-	var ccm *ciphersuite.CCM
-	if isClient {
-		ccm, err = ciphersuite.NewCCM(c.cryptoCCMTagLen, keys.ClientWriteKey, keys.ClientWriteIV, keys.ServerWriteKey, keys.ServerWriteIV)
-	} else {
-		ccm, err = ciphersuite.NewCCM(c.cryptoCCMTagLen, keys.ServerWriteKey, keys.ServerWriteIV, keys.ClientWriteKey, keys.ClientWriteIV)
-	}
-	c.ccm.Store(ccm)
-
-	return err
-}
-
-// Encrypt encrypts a single TLS RecordLayer
-func (c *Aes128Ccm) Encrypt(pkt *recordlayer.RecordLayer, raw []byte) ([]byte, error) {
-	ccm := c.ccm.Load()
-	if ccm == nil {
-		return nil, fmt.Errorf("%w, unable to encrypt", errCipherSuiteNotInit)
-	}
-
-	return ccm.(*ciphersuite.CCM).Encrypt(pkt, raw)
-}
-
-// Decrypt decrypts a single TLS RecordLayer
-func (c *Aes128Ccm) Decrypt(raw []byte) ([]byte, error) {
-	ccm := c.ccm.Load()
-	if ccm == nil {
-		return nil, fmt.Errorf("%w, unable to decrypt", errCipherSuiteNotInit)
-	}
-
-	return ccm.(*ciphersuite.CCM).Decrypt(raw)
-}
diff --git a/anylink/dtls-2.0.9/internal/ciphersuite/ciphersuite.go b/anylink/dtls-2.0.9/internal/ciphersuite/ciphersuite.go
deleted file mode 100644
index 3a4fb43..0000000
--- a/anylink/dtls-2.0.9/internal/ciphersuite/ciphersuite.go
+++ /dev/null
@@ -1,71 +0,0 @@
-// Package ciphersuite provides TLS Ciphers as registered with the IANA  https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-4
-package ciphersuite
-
-import (
-	"errors"
-	"fmt"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-)
-
-var errCipherSuiteNotInit = &protocol.TemporaryError{Err: errors.New("CipherSuite has not been initialized")} //nolint:goerr113
-
-// ID is an ID for our supported CipherSuites
-type ID uint16
-
-func (i ID) String() string {
-	switch i {
-	case TLS_ECDHE_ECDSA_WITH_AES_128_CCM:
-		return "TLS_ECDHE_ECDSA_WITH_AES_128_CCM"
-	case TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8:
-		return "TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8"
-	case TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256:
-		return "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256"
-	case TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256:
-		return "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256"
-	case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA:
-		return "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA"
-	case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA:
-		return "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA"
-	case TLS_PSK_WITH_AES_128_CCM:
-		return "TLS_PSK_WITH_AES_128_CCM"
-	case TLS_PSK_WITH_AES_128_CCM_8:
-		return "TLS_PSK_WITH_AES_128_CCM_8"
-	case TLS_PSK_WITH_AES_128_GCM_SHA256:
-		return "TLS_PSK_WITH_AES_128_GCM_SHA256"
-	case TLS_PSK_WITH_AES_128_CBC_SHA256:
-		return "TLS_PSK_WITH_AES_128_CBC_SHA256"
-	default:
-		return fmt.Sprintf("unknown(%v)", uint16(i))
-	}
-}
-
-// Supported Cipher Suites
-const (
-	// AES-128-CCM
-	TLS_ECDHE_ECDSA_WITH_AES_128_CCM   ID = 0xc0ac //nolint:golint,stylecheck
-	TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 ID = 0xc0ae //nolint:golint,stylecheck
-
-	// AES-128-GCM-SHA256
-	TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 ID = 0xc02b //nolint:golint,stylecheck
-	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ID = 0xc02f //nolint:golint,stylecheck
-
-	// AES-256-CBC-SHA
-	TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA ID = 0xc00a //nolint:golint,stylecheck
-	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA   ID = 0xc014 //nolint:golint,stylecheck
-
-	TLS_PSK_WITH_AES_128_CCM        ID = 0xc0a4 //nolint:golint,stylecheck
-	TLS_PSK_WITH_AES_128_CCM_8      ID = 0xc0a8 //nolint:golint,stylecheck
-	TLS_PSK_WITH_AES_128_GCM_SHA256 ID = 0x00a8 //nolint:golint,stylecheck
-	TLS_PSK_WITH_AES_128_CBC_SHA256 ID = 0x00ae //nolint:golint,stylecheck
-)
-
-// AuthenticationType controls what authentication method is using during the handshake
-type AuthenticationType int
-
-// AuthenticationType Enums
-const (
-	AuthenticationTypeCertificate AuthenticationType = iota + 1
-	AuthenticationTypePreSharedKey
-	AuthenticationTypeAnonymous
-)
diff --git a/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_ecdsa_with_aes_128_ccm.go b/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_ecdsa_with_aes_128_ccm.go
deleted file mode 100644
index ac73556..0000000
--- a/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_ecdsa_with_aes_128_ccm.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package ciphersuite
-
-import (
-	"github.com/pion/dtls/v2/pkg/crypto/ciphersuite"
-	"github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-)
-
-// NewTLSEcdheEcdsaWithAes128Ccm constructs a TLS_ECDHE_ECDSA_WITH_AES_128_CCM Cipher
-func NewTLSEcdheEcdsaWithAes128Ccm() *Aes128Ccm {
-	return newAes128Ccm(clientcertificate.ECDSASign, TLS_ECDHE_ECDSA_WITH_AES_128_CCM, false, ciphersuite.CCMTagLength)
-}
diff --git a/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_ecdsa_with_aes_128_ccm8.go b/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_ecdsa_with_aes_128_ccm8.go
deleted file mode 100644
index 49b1a83..0000000
--- a/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_ecdsa_with_aes_128_ccm8.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package ciphersuite
-
-import (
-	"github.com/pion/dtls/v2/pkg/crypto/ciphersuite"
-	"github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-)
-
-// NewTLSEcdheEcdsaWithAes128Ccm8 creates a new TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 CipherSuite
-func NewTLSEcdheEcdsaWithAes128Ccm8() *Aes128Ccm {
-	return newAes128Ccm(clientcertificate.ECDSASign, TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8, false, ciphersuite.CCMTagLength8)
-}
diff --git a/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_ecdsa_with_aes_128_gcm_sha256.go b/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_ecdsa_with_aes_128_gcm_sha256.go
deleted file mode 100644
index b491320..0000000
--- a/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_ecdsa_with_aes_128_gcm_sha256.go
+++ /dev/null
@@ -1,92 +0,0 @@
-package ciphersuite
-
-import (
-	"crypto/sha256"
-	"fmt"
-	"hash"
-	"sync/atomic"
-
-	"github.com/pion/dtls/v2/pkg/crypto/ciphersuite"
-	"github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-	"github.com/pion/dtls/v2/pkg/crypto/prf"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-// TLSEcdheEcdsaWithAes128GcmSha256  represents a TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 CipherSuite
-type TLSEcdheEcdsaWithAes128GcmSha256 struct {
-	gcm atomic.Value // *cryptoGCM
-}
-
-// CertificateType returns what type of certficate this CipherSuite exchanges
-func (c *TLSEcdheEcdsaWithAes128GcmSha256) CertificateType() clientcertificate.Type {
-	return clientcertificate.ECDSASign
-}
-
-// ID returns the ID of the CipherSuite
-func (c *TLSEcdheEcdsaWithAes128GcmSha256) ID() ID {
-	return TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
-}
-
-func (c *TLSEcdheEcdsaWithAes128GcmSha256) String() string {
-	return "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256"
-}
-
-// HashFunc returns the hashing func for this CipherSuite
-func (c *TLSEcdheEcdsaWithAes128GcmSha256) HashFunc() func() hash.Hash {
-	return sha256.New
-}
-
-// AuthenticationType controls what authentication method is using during the handshake
-func (c *TLSEcdheEcdsaWithAes128GcmSha256) AuthenticationType() AuthenticationType {
-	return AuthenticationTypeCertificate
-}
-
-// IsInitialized returns if the CipherSuite has keying material and can
-// encrypt/decrypt packets
-func (c *TLSEcdheEcdsaWithAes128GcmSha256) IsInitialized() bool {
-	return c.gcm.Load() != nil
-}
-
-// Init initializes the internal Cipher with keying material
-func (c *TLSEcdheEcdsaWithAes128GcmSha256) Init(masterSecret, clientRandom, serverRandom []byte, isClient bool) error {
-	const (
-		prfMacLen = 0
-		prfKeyLen = 16
-		prfIvLen  = 4
-	)
-
-	keys, err := prf.GenerateEncryptionKeys(masterSecret, clientRandom, serverRandom, prfMacLen, prfKeyLen, prfIvLen, c.HashFunc())
-	if err != nil {
-		return err
-	}
-
-	var gcm *ciphersuite.GCM
-	if isClient {
-		gcm, err = ciphersuite.NewGCM(keys.ClientWriteKey, keys.ClientWriteIV, keys.ServerWriteKey, keys.ServerWriteIV)
-	} else {
-		gcm, err = ciphersuite.NewGCM(keys.ServerWriteKey, keys.ServerWriteIV, keys.ClientWriteKey, keys.ClientWriteIV)
-	}
-	c.gcm.Store(gcm)
-
-	return err
-}
-
-// Encrypt encrypts a single TLS RecordLayer
-func (c *TLSEcdheEcdsaWithAes128GcmSha256) Encrypt(pkt *recordlayer.RecordLayer, raw []byte) ([]byte, error) {
-	gcm := c.gcm.Load()
-	if gcm == nil {
-		return nil, fmt.Errorf("%w, unable to encrypt", errCipherSuiteNotInit)
-	}
-
-	return gcm.(*ciphersuite.GCM).Encrypt(pkt, raw)
-}
-
-// Decrypt decrypts a single TLS RecordLayer
-func (c *TLSEcdheEcdsaWithAes128GcmSha256) Decrypt(raw []byte) ([]byte, error) {
-	gcm := c.gcm.Load()
-	if gcm == nil {
-		return nil, fmt.Errorf("%w, unable to decrypt", errCipherSuiteNotInit)
-	}
-
-	return gcm.(*ciphersuite.GCM).Decrypt(raw)
-}
diff --git a/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_ecdsa_with_aes_256_cbc_sha.go b/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_ecdsa_with_aes_256_cbc_sha.go
deleted file mode 100644
index f7a33ad..0000000
--- a/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_ecdsa_with_aes_256_cbc_sha.go
+++ /dev/null
@@ -1,101 +0,0 @@
-package ciphersuite
-
-import (
-	"crypto/sha1" //nolint: gosec,gci
-	"crypto/sha256"
-	"fmt"
-	"hash"
-	"sync/atomic"
-
-	"github.com/pion/dtls/v2/pkg/crypto/ciphersuite"
-	"github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-	"github.com/pion/dtls/v2/pkg/crypto/prf"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-// TLSEcdheEcdsaWithAes256CbcSha represents a TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA CipherSuite
-type TLSEcdheEcdsaWithAes256CbcSha struct {
-	cbc atomic.Value // *cryptoCBC
-}
-
-// CertificateType returns what type of certficate this CipherSuite exchanges
-func (c *TLSEcdheEcdsaWithAes256CbcSha) CertificateType() clientcertificate.Type {
-	return clientcertificate.ECDSASign
-}
-
-// ID returns the ID of the CipherSuite
-func (c *TLSEcdheEcdsaWithAes256CbcSha) ID() ID {
-	return TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
-}
-
-func (c *TLSEcdheEcdsaWithAes256CbcSha) String() string {
-	return "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA"
-}
-
-// HashFunc returns the hashing func for this CipherSuite
-func (c *TLSEcdheEcdsaWithAes256CbcSha) HashFunc() func() hash.Hash {
-	return sha256.New
-}
-
-// AuthenticationType controls what authentication method is using during the handshake
-func (c *TLSEcdheEcdsaWithAes256CbcSha) AuthenticationType() AuthenticationType {
-	return AuthenticationTypeCertificate
-}
-
-// IsInitialized returns if the CipherSuite has keying material and can
-// encrypt/decrypt packets
-func (c *TLSEcdheEcdsaWithAes256CbcSha) IsInitialized() bool {
-	return c.cbc.Load() != nil
-}
-
-// Init initializes the internal Cipher with keying material
-func (c *TLSEcdheEcdsaWithAes256CbcSha) Init(masterSecret, clientRandom, serverRandom []byte, isClient bool) error {
-	const (
-		prfMacLen = 20
-		prfKeyLen = 32
-		prfIvLen  = 16
-	)
-
-	keys, err := prf.GenerateEncryptionKeys(masterSecret, clientRandom, serverRandom, prfMacLen, prfKeyLen, prfIvLen, c.HashFunc())
-	if err != nil {
-		return err
-	}
-
-	var cbc *ciphersuite.CBC
-	if isClient {
-		cbc, err = ciphersuite.NewCBC(
-			keys.ClientWriteKey, keys.ClientWriteIV, keys.ClientMACKey,
-			keys.ServerWriteKey, keys.ServerWriteIV, keys.ServerMACKey,
-			sha1.New,
-		)
-	} else {
-		cbc, err = ciphersuite.NewCBC(
-			keys.ServerWriteKey, keys.ServerWriteIV, keys.ServerMACKey,
-			keys.ClientWriteKey, keys.ClientWriteIV, keys.ClientMACKey,
-			sha1.New,
-		)
-	}
-	c.cbc.Store(cbc)
-
-	return err
-}
-
-// Encrypt encrypts a single TLS RecordLayer
-func (c *TLSEcdheEcdsaWithAes256CbcSha) Encrypt(pkt *recordlayer.RecordLayer, raw []byte) ([]byte, error) {
-	cbc := c.cbc.Load()
-	if cbc == nil { // !c.isInitialized()
-		return nil, fmt.Errorf("%w, unable to encrypt", errCipherSuiteNotInit)
-	}
-
-	return cbc.(*ciphersuite.CBC).Encrypt(pkt, raw)
-}
-
-// Decrypt decrypts a single TLS RecordLayer
-func (c *TLSEcdheEcdsaWithAes256CbcSha) Decrypt(raw []byte) ([]byte, error) {
-	cbc := c.cbc.Load()
-	if cbc == nil { // !c.isInitialized()
-		return nil, fmt.Errorf("%w, unable to decrypt", errCipherSuiteNotInit)
-	}
-
-	return cbc.(*ciphersuite.CBC).Decrypt(raw)
-}
diff --git a/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_rsa_with_aes_128_gcm_sha256.go b/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_rsa_with_aes_128_gcm_sha256.go
deleted file mode 100644
index 70400c3..0000000
--- a/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_rsa_with_aes_128_gcm_sha256.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package ciphersuite
-
-import "github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-
-// TLSEcdheRsaWithAes128GcmSha256 implements the TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 CipherSuite
-type TLSEcdheRsaWithAes128GcmSha256 struct {
-	TLSEcdheEcdsaWithAes128GcmSha256
-}
-
-// CertificateType returns what type of certificate this CipherSuite exchanges
-func (c *TLSEcdheRsaWithAes128GcmSha256) CertificateType() clientcertificate.Type {
-	return clientcertificate.RSASign
-}
-
-// ID returns the ID of the CipherSuite
-func (c *TLSEcdheRsaWithAes128GcmSha256) ID() ID {
-	return TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
-}
-
-func (c *TLSEcdheRsaWithAes128GcmSha256) String() string {
-	return "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256"
-}
diff --git a/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_rsa_with_aes_256_cbc_sha.go b/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_rsa_with_aes_256_cbc_sha.go
deleted file mode 100644
index 0d82dc3..0000000
--- a/anylink/dtls-2.0.9/internal/ciphersuite/tls_ecdhe_rsa_with_aes_256_cbc_sha.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package ciphersuite
-
-import "github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-
-// TLSEcdheRsaWithAes256CbcSha implements the TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA CipherSuite
-type TLSEcdheRsaWithAes256CbcSha struct {
-	TLSEcdheEcdsaWithAes256CbcSha
-}
-
-// CertificateType returns what type of certificate this CipherSuite exchanges
-func (c *TLSEcdheRsaWithAes256CbcSha) CertificateType() clientcertificate.Type {
-	return clientcertificate.RSASign
-}
-
-// ID returns the ID of the CipherSuite
-func (c *TLSEcdheRsaWithAes256CbcSha) ID() ID {
-	return TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
-}
-
-func (c *TLSEcdheRsaWithAes256CbcSha) String() string {
-	return "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA"
-}
diff --git a/anylink/dtls-2.0.9/internal/ciphersuite/tls_psk_with_aes_128_cbc_sha256.go b/anylink/dtls-2.0.9/internal/ciphersuite/tls_psk_with_aes_128_cbc_sha256.go
deleted file mode 100644
index 43e5e38..0000000
--- a/anylink/dtls-2.0.9/internal/ciphersuite/tls_psk_with_aes_128_cbc_sha256.go
+++ /dev/null
@@ -1,100 +0,0 @@
-package ciphersuite
-
-import (
-	"crypto/sha256"
-	"fmt"
-	"hash"
-	"sync/atomic"
-
-	"github.com/pion/dtls/v2/pkg/crypto/ciphersuite"
-	"github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-	"github.com/pion/dtls/v2/pkg/crypto/prf"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-// TLSPskWithAes128CbcSha256 implements the TLS_PSK_WITH_AES_128_CBC_SHA256 CipherSuite
-type TLSPskWithAes128CbcSha256 struct {
-	cbc atomic.Value // *cryptoCBC
-}
-
-// CertificateType returns what type of certificate this CipherSuite exchanges
-func (c *TLSPskWithAes128CbcSha256) CertificateType() clientcertificate.Type {
-	return clientcertificate.Type(0)
-}
-
-// ID returns the ID of the CipherSuite
-func (c *TLSPskWithAes128CbcSha256) ID() ID {
-	return TLS_PSK_WITH_AES_128_CBC_SHA256
-}
-
-func (c *TLSPskWithAes128CbcSha256) String() string {
-	return "TLS_PSK_WITH_AES_128_CBC_SHA256"
-}
-
-// HashFunc returns the hashing func for this CipherSuite
-func (c *TLSPskWithAes128CbcSha256) HashFunc() func() hash.Hash {
-	return sha256.New
-}
-
-// AuthenticationType controls what authentication method is using during the handshake
-func (c *TLSPskWithAes128CbcSha256) AuthenticationType() AuthenticationType {
-	return AuthenticationTypePreSharedKey
-}
-
-// IsInitialized returns if the CipherSuite has keying material and can
-// encrypt/decrypt packets
-func (c *TLSPskWithAes128CbcSha256) IsInitialized() bool {
-	return c.cbc.Load() != nil
-}
-
-// Init initializes the internal Cipher with keying material
-func (c *TLSPskWithAes128CbcSha256) Init(masterSecret, clientRandom, serverRandom []byte, isClient bool) error {
-	const (
-		prfMacLen = 32
-		prfKeyLen = 16
-		prfIvLen  = 16
-	)
-
-	keys, err := prf.GenerateEncryptionKeys(masterSecret, clientRandom, serverRandom, prfMacLen, prfKeyLen, prfIvLen, c.HashFunc())
-	if err != nil {
-		return err
-	}
-
-	var cbc *ciphersuite.CBC
-	if isClient {
-		cbc, err = ciphersuite.NewCBC(
-			keys.ClientWriteKey, keys.ClientWriteIV, keys.ClientMACKey,
-			keys.ServerWriteKey, keys.ServerWriteIV, keys.ServerMACKey,
-			c.HashFunc(),
-		)
-	} else {
-		cbc, err = ciphersuite.NewCBC(
-			keys.ServerWriteKey, keys.ServerWriteIV, keys.ServerMACKey,
-			keys.ClientWriteKey, keys.ClientWriteIV, keys.ClientMACKey,
-			c.HashFunc(),
-		)
-	}
-	c.cbc.Store(cbc)
-
-	return err
-}
-
-// Encrypt encrypts a single TLS RecordLayer
-func (c *TLSPskWithAes128CbcSha256) Encrypt(pkt *recordlayer.RecordLayer, raw []byte) ([]byte, error) {
-	cbc := c.cbc.Load()
-	if cbc == nil { // !c.isInitialized()
-		return nil, fmt.Errorf("%w, unable to decrypt", errCipherSuiteNotInit)
-	}
-
-	return cbc.(*ciphersuite.CBC).Encrypt(pkt, raw)
-}
-
-// Decrypt decrypts a single TLS RecordLayer
-func (c *TLSPskWithAes128CbcSha256) Decrypt(raw []byte) ([]byte, error) {
-	cbc := c.cbc.Load()
-	if cbc == nil { // !c.isInitialized()
-		return nil, fmt.Errorf("%w, unable to decrypt", errCipherSuiteNotInit)
-	}
-
-	return cbc.(*ciphersuite.CBC).Decrypt(raw)
-}
diff --git a/anylink/dtls-2.0.9/internal/ciphersuite/tls_psk_with_aes_128_ccm.go b/anylink/dtls-2.0.9/internal/ciphersuite/tls_psk_with_aes_128_ccm.go
deleted file mode 100644
index 8c13bb1..0000000
--- a/anylink/dtls-2.0.9/internal/ciphersuite/tls_psk_with_aes_128_ccm.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package ciphersuite
-
-import (
-	"github.com/pion/dtls/v2/pkg/crypto/ciphersuite"
-	"github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-)
-
-// NewTLSPskWithAes128Ccm returns the TLS_PSK_WITH_AES_128_CCM CipherSuite
-func NewTLSPskWithAes128Ccm() *Aes128Ccm {
-	return newAes128Ccm(clientcertificate.Type(0), TLS_PSK_WITH_AES_128_CCM, true, ciphersuite.CCMTagLength)
-}
diff --git a/anylink/dtls-2.0.9/internal/ciphersuite/tls_psk_with_aes_128_ccm8.go b/anylink/dtls-2.0.9/internal/ciphersuite/tls_psk_with_aes_128_ccm8.go
deleted file mode 100644
index d04abb4..0000000
--- a/anylink/dtls-2.0.9/internal/ciphersuite/tls_psk_with_aes_128_ccm8.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package ciphersuite
-
-import (
-	"github.com/pion/dtls/v2/pkg/crypto/ciphersuite"
-	"github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-)
-
-// NewTLSPskWithAes128Ccm8 returns the TLS_PSK_WITH_AES_128_CCM_8 CipherSuite
-func NewTLSPskWithAes128Ccm8() *Aes128Ccm {
-	return newAes128Ccm(clientcertificate.Type(0), TLS_PSK_WITH_AES_128_CCM_8, true, ciphersuite.CCMTagLength8)
-}
diff --git a/anylink/dtls-2.0.9/internal/ciphersuite/tls_psk_with_aes_128_gcm_sha256.go b/anylink/dtls-2.0.9/internal/ciphersuite/tls_psk_with_aes_128_gcm_sha256.go
deleted file mode 100644
index 5f10335..0000000
--- a/anylink/dtls-2.0.9/internal/ciphersuite/tls_psk_with_aes_128_gcm_sha256.go
+++ /dev/null
@@ -1,27 +0,0 @@
-package ciphersuite
-
-import "github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-
-// TLSPskWithAes128GcmSha256 implements the TLS_PSK_WITH_AES_128_GCM_SHA256 CipherSuite
-type TLSPskWithAes128GcmSha256 struct {
-	TLSEcdheEcdsaWithAes128GcmSha256
-}
-
-// CertificateType returns what type of certificate this CipherSuite exchanges
-func (c *TLSPskWithAes128GcmSha256) CertificateType() clientcertificate.Type {
-	return clientcertificate.Type(0)
-}
-
-// ID returns the ID of the CipherSuite
-func (c *TLSPskWithAes128GcmSha256) ID() ID {
-	return TLS_PSK_WITH_AES_128_GCM_SHA256
-}
-
-func (c *TLSPskWithAes128GcmSha256) String() string {
-	return "TLS_PSK_WITH_AES_128_GCM_SHA256"
-}
-
-// AuthenticationType controls what authentication method is using during the handshake
-func (c *TLSPskWithAes128GcmSha256) AuthenticationType() AuthenticationType {
-	return AuthenticationTypePreSharedKey
-}
diff --git a/anylink/dtls-2.0.9/internal/closer/closer.go b/anylink/dtls-2.0.9/internal/closer/closer.go
deleted file mode 100644
index b99e13e..0000000
--- a/anylink/dtls-2.0.9/internal/closer/closer.go
+++ /dev/null
@@ -1,45 +0,0 @@
-// Package closer provides signaling channel for shutdown
-package closer
-
-import (
-	"context"
-)
-
-// Closer allows for each signaling a channel for shutdown
-type Closer struct {
-	ctx       context.Context
-	closeFunc func()
-}
-
-// NewCloser creates a new instance of Closer
-func NewCloser() *Closer {
-	ctx, closeFunc := context.WithCancel(context.Background())
-	return &Closer{
-		ctx:       ctx,
-		closeFunc: closeFunc,
-	}
-}
-
-// NewCloserWithParent creates a new instance of Closer with a parent context
-func NewCloserWithParent(ctx context.Context) *Closer {
-	ctx, closeFunc := context.WithCancel(ctx)
-	return &Closer{
-		ctx:       ctx,
-		closeFunc: closeFunc,
-	}
-}
-
-// Done returns a channel signaling when it is done
-func (c *Closer) Done() <-chan struct{} {
-	return c.ctx.Done()
-}
-
-// Err returns an error of the context
-func (c *Closer) Err() error {
-	return c.ctx.Err()
-}
-
-// Close sends a signal to trigger the ctx done channel
-func (c *Closer) Close() {
-	c.closeFunc()
-}
diff --git a/anylink/dtls-2.0.9/internal/net/dpipe/dpipe.go b/anylink/dtls-2.0.9/internal/net/dpipe/dpipe.go
deleted file mode 100644
index c68270a..0000000
--- a/anylink/dtls-2.0.9/internal/net/dpipe/dpipe.go
+++ /dev/null
@@ -1,144 +0,0 @@
-// Package dpipe provides the pipe works like datagram protocol on memory.
-package dpipe
-
-import (
-	"context"
-	"io"
-	"net"
-	"sync"
-	"time"
-
-	"github.com/pion/transport/deadline"
-)
-
-// Pipe creates pair of non-stream conn on memory.
-// Close of the one end doesn't make effect to the other end.
-func Pipe() (net.Conn, net.Conn) {
-	ch0 := make(chan []byte, 1000)
-	ch1 := make(chan []byte, 1000)
-	return &conn{
-			rCh:           ch0,
-			wCh:           ch1,
-			closed:        make(chan struct{}),
-			closing:       make(chan struct{}),
-			readDeadline:  deadline.New(),
-			writeDeadline: deadline.New(),
-		}, &conn{
-			rCh:           ch1,
-			wCh:           ch0,
-			closed:        make(chan struct{}),
-			closing:       make(chan struct{}),
-			readDeadline:  deadline.New(),
-			writeDeadline: deadline.New(),
-		}
-}
-
-type pipeAddr struct{}
-
-func (pipeAddr) Network() string { return "pipe" }
-func (pipeAddr) String() string  { return ":1" }
-
-type conn struct {
-	rCh       chan []byte
-	wCh       chan []byte
-	closed    chan struct{}
-	closing   chan struct{}
-	closeOnce sync.Once
-
-	readDeadline  *deadline.Deadline
-	writeDeadline *deadline.Deadline
-}
-
-func (*conn) LocalAddr() net.Addr  { return pipeAddr{} }
-func (*conn) RemoteAddr() net.Addr { return pipeAddr{} }
-
-func (c *conn) SetDeadline(t time.Time) error {
-	c.readDeadline.Set(t)
-	c.writeDeadline.Set(t)
-	return nil
-}
-
-func (c *conn) SetReadDeadline(t time.Time) error {
-	c.readDeadline.Set(t)
-	return nil
-}
-
-func (c *conn) SetWriteDeadline(t time.Time) error {
-	c.writeDeadline.Set(t)
-	return nil
-}
-
-func (c *conn) Read(data []byte) (n int, err error) {
-	select {
-	case <-c.closed:
-		return 0, io.EOF
-	case <-c.closing:
-		if len(c.rCh) == 0 {
-			return 0, io.EOF
-		}
-	case <-c.readDeadline.Done():
-		return 0, context.DeadlineExceeded
-	default:
-	}
-
-	for {
-		select {
-		case d := <-c.rCh:
-			if len(d) <= len(data) {
-				copy(data, d)
-				return len(d), nil
-			}
-			copy(data, d[:len(data)])
-			return len(data), nil
-		case <-c.closed:
-			return 0, io.EOF
-		case <-c.closing:
-			if len(c.rCh) == 0 {
-				return 0, io.EOF
-			}
-		case <-c.readDeadline.Done():
-			return 0, context.DeadlineExceeded
-		}
-	}
-}
-
-func (c *conn) cleanWriteBuffer() {
-	for {
-		select {
-		case <-c.wCh:
-		default:
-			return
-		}
-	}
-}
-
-func (c *conn) Write(data []byte) (n int, err error) {
-	select {
-	case <-c.closed:
-		return 0, io.ErrClosedPipe
-	case <-c.writeDeadline.Done():
-		c.cleanWriteBuffer()
-		return 0, context.DeadlineExceeded
-	default:
-	}
-
-	cData := make([]byte, len(data))
-	copy(cData, data)
-
-	select {
-	case <-c.closed:
-		return 0, io.ErrClosedPipe
-	case <-c.writeDeadline.Done():
-		c.cleanWriteBuffer()
-		return 0, context.DeadlineExceeded
-	case c.wCh <- cData:
-		return len(cData), nil
-	}
-}
-
-func (c *conn) Close() error {
-	c.closeOnce.Do(func() {
-		close(c.closed)
-	})
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/internal/net/dpipe/dpipe_test.go b/anylink/dtls-2.0.9/internal/net/dpipe/dpipe_test.go
deleted file mode 100644
index c9c9a3d..0000000
--- a/anylink/dtls-2.0.9/internal/net/dpipe/dpipe_test.go
+++ /dev/null
@@ -1,106 +0,0 @@
-// +build !js
-
-package dpipe
-
-import (
-	"bytes"
-	"errors"
-	"io"
-	"net"
-	"testing"
-	"time"
-
-	"golang.org/x/net/nettest"
-)
-
-func TestNetTest(t *testing.T) {
-	nettest.TestConn(t, func() (net.Conn, net.Conn, func(), error) {
-		ca, cb := Pipe()
-		return &closePropagator{ca.(*conn), cb.(*conn)},
-			&closePropagator{cb.(*conn), ca.(*conn)},
-			func() {
-				_ = ca.Close()
-				_ = cb.Close()
-			}, nil
-	})
-}
-
-type closePropagator struct {
-	*conn
-	otherEnd *conn
-}
-
-func (c *closePropagator) Close() error {
-	close(c.otherEnd.closing)
-	return c.conn.Close()
-}
-
-func TestPipe(t *testing.T) {
-	ca, cb := Pipe()
-
-	testData := []byte{0x01, 0x02}
-
-	for name, cond := range map[string]struct {
-		ca net.Conn
-		cb net.Conn
-	}{
-		"AtoB": {ca, cb},
-		"BtoA": {cb, ca},
-	} {
-		c0 := cond.ca
-		c1 := cond.cb
-		t.Run(name, func(t *testing.T) {
-			switch n, err := c0.Write(testData); {
-			case err != nil:
-				t.Errorf("Unexpected error on Write: %v", err)
-			case n != len(testData):
-				t.Errorf("Expected to write %d bytes, wrote %d bytes", len(testData), n)
-			}
-
-			readData := make([]byte, 4)
-			switch n, err := c1.Read(readData); {
-			case err != nil:
-				t.Errorf("Unexpected error on Write: %v", err)
-			case n != len(testData):
-				t.Errorf("Expected to read %d bytes, got %d bytes", len(testData), n)
-			case !bytes.Equal(testData, readData[0:n]):
-				t.Errorf("Expected to read %v, got %v", testData, readData[0:n])
-			}
-		})
-	}
-
-	if err := ca.Close(); err != nil {
-		t.Errorf("Unexpected error on Close: %v", err)
-	}
-	if _, err := ca.Write(testData); !errors.Is(err, io.ErrClosedPipe) {
-		t.Errorf("Write to closed conn should fail with %v, got %v", io.ErrClosedPipe, err)
-	}
-
-	// Other side should be writable.
-	if _, err := cb.Write(testData); err != nil {
-		t.Errorf("Unexpected error on Write: %v", err)
-	}
-
-	readData := make([]byte, 4)
-	if _, err := ca.Read(readData); !errors.Is(err, io.EOF) {
-		t.Errorf("Read from closed conn should fail with %v, got %v", io.EOF, err)
-	}
-
-	// Other side should be readable.
-	readDone := make(chan struct{})
-	go func() {
-		readData := make([]byte, 4)
-		if n, err := cb.Read(readData); err == nil {
-			t.Errorf("Unexpected data %v was arrived to orphaned conn", readData[:n])
-		}
-		close(readDone)
-	}()
-	select {
-	case <-readDone:
-		t.Errorf("Read should be blocked if the other side is closed")
-	case <-time.After(10 * time.Millisecond):
-	}
-	if err := cb.Close(); err != nil {
-		t.Errorf("Unexpected error on Close: %v", err)
-	}
-}
diff --git a/anylink/dtls-2.0.9/internal/util/util.go b/anylink/dtls-2.0.9/internal/util/util.go
deleted file mode 100644
index 746a670..0000000
--- a/anylink/dtls-2.0.9/internal/util/util.go
+++ /dev/null
@@ -1,39 +0,0 @@
-// Package util contains small helpers used across the repo
-package util
-
-import (
-	"encoding/binary"
-)
-
-// BigEndianUint24 returns the value of a big endian uint24
-func BigEndianUint24(raw []byte) uint32 {
-	if len(raw) < 3 {
-		return 0
-	}
-
-	rawCopy := make([]byte, 4)
-	copy(rawCopy[1:], raw)
-	return binary.BigEndian.Uint32(rawCopy)
-}
-
-// PutBigEndianUint24 encodes a uint24 and places into out
-func PutBigEndianUint24(out []byte, in uint32) {
-	tmp := make([]byte, 4)
-	binary.BigEndian.PutUint32(tmp, in)
-	copy(out, tmp[1:])
-}
-
-// PutBigEndianUint48 encodes a uint64 and places into out
-func PutBigEndianUint48(out []byte, in uint64) {
-	tmp := make([]byte, 8)
-	binary.BigEndian.PutUint64(tmp, in)
-	copy(out, tmp[2:])
-}
-
-// Max returns the larger value
-func Max(a, b int) int {
-	if a > b {
-		return a
-	}
-	return b
-}
diff --git a/anylink/dtls-2.0.9/listener.go b/anylink/dtls-2.0.9/listener.go
deleted file mode 100644
index bf80345..0000000
--- a/anylink/dtls-2.0.9/listener.go
+++ /dev/null
@@ -1,80 +0,0 @@
-package dtls
-
-import (
-	"net"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-	"github.com/pion/udp"
-)
-
-// Listen creates a DTLS listener
-func Listen(network string, laddr *net.UDPAddr, config *Config) (net.Listener, error) {
-	if err := validateConfig(config); err != nil {
-		return nil, err
-	}
-
-	lc := udp.ListenConfig{
-		AcceptFilter: func(packet []byte) bool {
-			pkts, err := recordlayer.UnpackDatagram(packet)
-			if err != nil || len(pkts) < 1 {
-				return false
-			}
-			h := &recordlayer.Header{}
-			if err := h.Unmarshal(pkts[0]); err != nil {
-				return false
-			}
-			return h.ContentType == protocol.ContentTypeHandshake
-		},
-	}
-	parent, err := lc.Listen(network, laddr)
-	if err != nil {
-		return nil, err
-	}
-	return &listener{
-		config: config,
-		parent: parent,
-	}, nil
-}
-
-// NewListener creates a DTLS listener which accepts connections from an inner Listener.
-func NewListener(inner net.Listener, config *Config) (net.Listener, error) {
-	if err := validateConfig(config); err != nil {
-		return nil, err
-	}
-
-	return &listener{
-		config: config,
-		parent: inner,
-	}, nil
-}
-
-// listener represents a DTLS listener
-type listener struct {
-	config *Config
-	parent net.Listener
-}
-
-// Accept waits for and returns the next connection to the listener.
-// You have to either close or read on all connection that are created.
-// Connection handshake will timeout using ConnectContextMaker in the Config.
-// If you want to specify the timeout duration, set ConnectContextMaker.
-func (l *listener) Accept() (net.Conn, error) {
-	c, err := l.parent.Accept()
-	if err != nil {
-		return nil, err
-	}
-	return Server(c, l.config)
-}
-
-// Close closes the listener.
-// Any blocked Accept operations will be unblocked and return errors.
-// Already Accepted connections are not closed.
-func (l *listener) Close() error {
-	return l.parent.Close()
-}
-
-// Addr returns the listener's network address.
-func (l *listener) Addr() net.Addr {
-	return l.parent.Addr()
-}
diff --git a/anylink/dtls-2.0.9/nettest_test.go b/anylink/dtls-2.0.9/nettest_test.go
deleted file mode 100644
index 22bd955..0000000
--- a/anylink/dtls-2.0.9/nettest_test.go
+++ /dev/null
@@ -1,29 +0,0 @@
-// +build !js
-
-package dtls
-
-import (
-	"net"
-	"testing"
-	"time"
-
-	"github.com/pion/transport/test"
-	"golang.org/x/net/nettest"
-)
-
-func TestNetTest(t *testing.T) {
-	lim := test.TimeOut(time.Minute*1 + time.Second*10)
-	defer lim.Stop()
-
-	nettest.TestConn(t, func() (c1, c2 net.Conn, stop func(), err error) {
-		c1, c2, err = pipeMemory()
-		if err != nil {
-			return nil, nil, nil, err
-		}
-		stop = func() {
-			_ = c1.Close()
-			_ = c2.Close()
-		}
-		return
-	})
-}
diff --git a/anylink/dtls-2.0.9/packet.go b/anylink/dtls-2.0.9/packet.go
deleted file mode 100644
index 8366a3c..0000000
--- a/anylink/dtls-2.0.9/packet.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package dtls
-
-import "github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-
-type packet struct {
-	record                   *recordlayer.RecordLayer
-	shouldEncrypt            bool
-	resetLocalSequenceNumber bool
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/ccm/ccm.go b/anylink/dtls-2.0.9/pkg/crypto/ccm/ccm.go
deleted file mode 100644
index 20e3436..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/ccm/ccm.go
+++ /dev/null
@@ -1,251 +0,0 @@
-// Package ccm implements a CCM, Counter with CBC-MAC
-// as per RFC 3610.
-//
-// See https://tools.ietf.org/html/rfc3610
-//
-// This code was lifted from https://github.com/bocajim/dtls/blob/a3300364a283fcb490d28a93d7fcfa7ba437fbbe/ccm/ccm.go
-// and as such was not written by the Pions authors. Like Pions this
-// code is licensed under MIT.
-//
-// A request for including CCM into the Go standard library
-// can be found as issue #27484 on the https://github.com/golang/go/
-// repository.
-package ccm
-
-import (
-	"crypto/cipher"
-	"crypto/subtle"
-	"encoding/binary"
-	"errors"
-	"math"
-)
-
-// ccm represents a Counter with CBC-MAC with a specific key.
-type ccm struct {
-	b cipher.Block
-	M uint8
-	L uint8
-}
-
-const ccmBlockSize = 16
-
-// CCM is a block cipher in Counter with CBC-MAC mode.
-// Providing authenticated encryption with associated data via the cipher.AEAD interface.
-type CCM interface {
-	cipher.AEAD
-	// MaxLength returns the maxium length of plaintext in calls to Seal.
-	// The maximum length of ciphertext in calls to Open is MaxLength()+Overhead().
-	// The maximum length is related to CCM's `L` parameter (15-noncesize) and
-	// is 1<<(8*L) - 1 (but also limited by the maxium size of an int).
-	MaxLength() int
-}
-
-var (
-	errInvalidBlockSize = errors.New("ccm: NewCCM requires 128-bit block cipher")
-	errInvalidTagSize   = errors.New("ccm: tagsize must be 4, 6, 8, 10, 12, 14, or 16")
-	errInvalidNonceSize = errors.New("ccm: invalid nonce size")
-)
-
-// NewCCM returns the given 128-bit block cipher wrapped in CCM.
-// The tagsize must be an even integer between 4 and 16 inclusive
-// and is used as CCM's `M` parameter.
-// The noncesize must be an integer between 7 and 13 inclusive,
-// 15-noncesize is used as CCM's `L` parameter.
-func NewCCM(b cipher.Block, tagsize, noncesize int) (CCM, error) {
-	if b.BlockSize() != ccmBlockSize {
-		return nil, errInvalidBlockSize
-	}
-	if tagsize < 4 || tagsize > 16 || tagsize&1 != 0 {
-		return nil, errInvalidTagSize
-	}
-	lensize := 15 - noncesize
-	if lensize < 2 || lensize > 8 {
-		return nil, errInvalidNonceSize
-	}
-	c := &ccm{b: b, M: uint8(tagsize), L: uint8(lensize)}
-	return c, nil
-}
-
-func (c *ccm) NonceSize() int { return 15 - int(c.L) }
-func (c *ccm) Overhead() int  { return int(c.M) }
-func (c *ccm) MaxLength() int { return maxlen(c.L, c.Overhead()) }
-
-func maxlen(l uint8, tagsize int) int {
-	max := (uint64(1) << (8 * l)) - 1
-	if m64 := uint64(math.MaxInt64) - uint64(tagsize); l > 8 || max > m64 {
-		max = m64 // The maximum lentgh on a 64bit arch
-	}
-	if max != uint64(int(max)) {
-		return math.MaxInt32 - tagsize // We have only 32bit int's
-	}
-	return int(max)
-}
-
-// MaxNonceLength returns the maximum nonce length for a given plaintext length.
-// A return value <= 0 indicates that plaintext length is too large for
-// any nonce length.
-func MaxNonceLength(pdatalen int) int {
-	const tagsize = 16
-	for L := 2; L <= 8; L++ {
-		if maxlen(uint8(L), tagsize) >= pdatalen {
-			return 15 - L
-		}
-	}
-	return 0
-}
-
-func (c *ccm) cbcRound(mac, data []byte) {
-	for i := 0; i < ccmBlockSize; i++ {
-		mac[i] ^= data[i]
-	}
-	c.b.Encrypt(mac, mac)
-}
-
-func (c *ccm) cbcData(mac, data []byte) {
-	for len(data) >= ccmBlockSize {
-		c.cbcRound(mac, data[:ccmBlockSize])
-		data = data[ccmBlockSize:]
-	}
-	if len(data) > 0 {
-		var block [ccmBlockSize]byte
-		copy(block[:], data)
-		c.cbcRound(mac, block[:])
-	}
-}
-
-var errPlaintextTooLong = errors.New("ccm: plaintext too large")
-
-func (c *ccm) tag(nonce, plaintext, adata []byte) ([]byte, error) {
-	var mac [ccmBlockSize]byte
-
-	if len(adata) > 0 {
-		mac[0] |= 1 << 6
-	}
-	mac[0] |= (c.M - 2) << 2
-	mac[0] |= c.L - 1
-	if len(nonce) != c.NonceSize() {
-		return nil, errInvalidNonceSize
-	}
-	if len(plaintext) > c.MaxLength() {
-		return nil, errPlaintextTooLong
-	}
-	binary.BigEndian.PutUint64(mac[ccmBlockSize-8:], uint64(len(plaintext)))
-	copy(mac[1:ccmBlockSize-c.L], nonce)
-	c.b.Encrypt(mac[:], mac[:])
-
-	var block [ccmBlockSize]byte
-	if n := uint64(len(adata)); n > 0 {
-		// First adata block includes adata length
-		i := 2
-		if n <= 0xfeff {
-			binary.BigEndian.PutUint16(block[:i], uint16(n))
-		} else {
-			block[0] = 0xfe
-			block[1] = 0xff
-			if n < uint64(1<<32) {
-				i = 2 + 4
-				binary.BigEndian.PutUint32(block[2:i], uint32(n))
-			} else {
-				i = 2 + 8
-				binary.BigEndian.PutUint64(block[2:i], n)
-			}
-		}
-		i = copy(block[i:], adata)
-		c.cbcRound(mac[:], block[:])
-		c.cbcData(mac[:], adata[i:])
-	}
-
-	if len(plaintext) > 0 {
-		c.cbcData(mac[:], plaintext)
-	}
-
-	return mac[:c.M], nil
-}
-
-// sliceForAppend takes a slice and a requested number of bytes. It returns a
-// slice with the contents of the given slice followed by that many bytes and a
-// second slice that aliases into it and contains only the extra bytes. If the
-// original slice has sufficient capacity then no allocation is performed.
-// From crypto/cipher/gcm.go
-func sliceForAppend(in []byte, n int) (head, tail []byte) {
-	if total := len(in) + n; cap(in) >= total {
-		head = in[:total]
-	} else {
-		head = make([]byte, total)
-		copy(head, in)
-	}
-	tail = head[len(in):]
-	return
-}
-
-// Seal encrypts and authenticates plaintext, authenticates the
-// additional data and appends the result to dst, returning the updated
-// slice. The nonce must be NonceSize() bytes long and unique for all
-// time, for a given key.
-// The plaintext must be no longer than MaxLength() bytes long.
-//
-// The plaintext and dst may alias exactly or not at all.
-func (c *ccm) Seal(dst, nonce, plaintext, adata []byte) []byte {
-	tag, err := c.tag(nonce, plaintext, adata)
-	if err != nil {
-		// The cipher.AEAD interface doesn't allow for an error return.
-		panic(err) // nolint
-	}
-
-	var iv, s0 [ccmBlockSize]byte
-	iv[0] = c.L - 1
-	copy(iv[1:ccmBlockSize-c.L], nonce)
-	c.b.Encrypt(s0[:], iv[:])
-	for i := 0; i < int(c.M); i++ {
-		tag[i] ^= s0[i]
-	}
-	iv[len(iv)-1] |= 1
-	stream := cipher.NewCTR(c.b, iv[:])
-	ret, out := sliceForAppend(dst, len(plaintext)+int(c.M))
-	stream.XORKeyStream(out, plaintext)
-	copy(out[len(plaintext):], tag)
-	return ret
-}
-
-var (
-	errOpen               = errors.New("ccm: message authentication failed")
-	errCiphertextTooShort = errors.New("ccm: ciphertext too short")
-	errCiphertextTooLong  = errors.New("ccm: ciphertext too long")
-)
-
-func (c *ccm) Open(dst, nonce, ciphertext, adata []byte) ([]byte, error) {
-	if len(ciphertext) < int(c.M) {
-		return nil, errCiphertextTooShort
-	}
-	if len(ciphertext) > c.MaxLength()+c.Overhead() {
-		return nil, errCiphertextTooLong
-	}
-
-	tag := make([]byte, int(c.M))
-	copy(tag, ciphertext[len(ciphertext)-int(c.M):])
-	ciphertextWithoutTag := ciphertext[:len(ciphertext)-int(c.M)]
-
-	var iv, s0 [ccmBlockSize]byte
-	iv[0] = c.L - 1
-	copy(iv[1:ccmBlockSize-c.L], nonce)
-	c.b.Encrypt(s0[:], iv[:])
-	for i := 0; i < int(c.M); i++ {
-		tag[i] ^= s0[i]
-	}
-	iv[len(iv)-1] |= 1
-	stream := cipher.NewCTR(c.b, iv[:])
-
-	// Cannot decrypt directly to dst since we're not supposed to
-	// reveal the plaintext to the caller if authentication fails.
-	plaintext := make([]byte, len(ciphertextWithoutTag))
-	stream.XORKeyStream(plaintext, ciphertextWithoutTag)
-	expectedTag, err := c.tag(nonce, plaintext, adata)
-	if err != nil {
-		return nil, err
-	}
-
-	if subtle.ConstantTimeCompare(tag, expectedTag) != 1 {
-		return nil, errOpen
-	}
-	return append(dst, plaintext...), nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/ccm/ccm_test.go b/anylink/dtls-2.0.9/pkg/crypto/ccm/ccm_test.go
deleted file mode 100644
index 0784a5a..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/ccm/ccm_test.go
+++ /dev/null
@@ -1,419 +0,0 @@
-package ccm
-
-// Refer to RFC 3610 section 8 for the vectors.
-
-import (
-	"bytes"
-	"crypto/aes"
-	"encoding/hex"
-	"errors"
-	"fmt"
-	"testing"
-)
-
-func mustHexDecode(s string) []byte {
-	r, err := hex.DecodeString(s)
-	if err != nil {
-		panic(err)
-	}
-	return r
-}
-
-var (
-	aesKey1to12  = mustHexDecode("c0c1c2c3c4c5c6c7c8c9cacbcccdcecf") //nolint:gochecknoglobals
-	aesKey13to24 = mustHexDecode("d7828d13b2b0bdc325a76236df93cc6b") //nolint:gochecknoglobals
-)
-
-// AESKey: AES Key
-// CipherText: Authenticated and encrypted output
-// ClearHeaderOctets:  Input with X cleartext header octets
-// Data: Input with X cleartext header octets
-// M: length(CBC-MAC)
-// Nonce: Nonce
-type vector struct {
-	AESKey            []byte
-	CipherText        []byte
-	ClearHeaderOctets int
-	Data              []byte
-	M                 int
-	Nonce             []byte
-}
-
-func TestRFC3610Vectors(t *testing.T) {
-	cases := []vector{
-		// Vectors 1-12
-		{
-			AESKey:            aesKey1to12,
-			CipherText:        mustHexDecode("0001020304050607588c979a61c663d2f066d0c2c0f989806d5f6b61dac38417e8d12cfdf926e0"),
-			ClearHeaderOctets: 8,
-			Data:              mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e"),
-			M:                 8,
-			Nonce:             mustHexDecode("00000003020100a0a1a2a3a4a5"),
-		},
-		{
-			AESKey:            aesKey1to12,
-			CipherText:        mustHexDecode("000102030405060772c91a36e135f8cf291ca894085c87e3cc15c439c9e43a3ba091d56e10400916"),
-			ClearHeaderOctets: 8,
-			Data:              mustHexDecode("000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F"),
-			M:                 8,
-			Nonce:             mustHexDecode("00000004030201a0a1a2a3a4a5"),
-		},
-		{
-			AESKey:            aesKey1to12,
-			CipherText:        mustHexDecode("000102030405060751b1e5f44a197d1da46b0f8e2d282ae871e838bb64da8596574adaa76fbd9fb0c5"),
-			ClearHeaderOctets: 8,
-			Data:              mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20"),
-			M:                 8,
-			Nonce:             mustHexDecode("00000005040302a0a1a2a3a4a5"),
-		},
-		{
-			AESKey:            aesKey1to12,
-			CipherText:        mustHexDecode("000102030405060708090a0ba28c6865939a9a79faaa5c4c2a9d4a91cdac8c96c861b9c9e61ef1"),
-			ClearHeaderOctets: 12,
-			Data:              mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e"),
-			M:                 8,
-			Nonce:             mustHexDecode("00000006050403a0a1a2a3a4a5"),
-		},
-		{
-			AESKey:            aesKey1to12,
-			CipherText:        mustHexDecode("000102030405060708090a0bdcf1fb7b5d9e23fb9d4e131253658ad86ebdca3e51e83f077d9c2d93"),
-			ClearHeaderOctets: 12,
-			Data:              mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"),
-			M:                 8,
-			Nonce:             mustHexDecode("00000007060504a0a1a2a3a4a5"),
-		},
-		{
-			AESKey:            aesKey1to12,
-			CipherText:        mustHexDecode("000102030405060708090a0b6fc1b011f006568b5171a42d953d469b2570a4bd87405a0443ac91cb94"),
-			ClearHeaderOctets: 12,
-			Data:              mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20"),
-			M:                 8,
-			Nonce:             mustHexDecode("00000008070605a0a1a2a3a4a5"),
-		},
-		{
-			AESKey:            aesKey1to12,
-			CipherText:        mustHexDecode("00010203040506070135d1b2c95f41d5d1d4fec185d166b8094e999dfed96c048c56602c97acbb7490"),
-			ClearHeaderOctets: 8,
-			Data:              mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e"),
-			M:                 10,
-			Nonce:             mustHexDecode("00000009080706a0a1a2a3a4a5"),
-		},
-		{
-			AESKey:            aesKey1to12,
-			CipherText:        mustHexDecode("00010203040506077b75399ac0831dd2f0bbd75879a2fd8f6cae6b6cd9b7db24c17b4433f434963f34b4"),
-			ClearHeaderOctets: 8,
-			Data:              mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"),
-			M:                 10,
-			Nonce:             mustHexDecode("0000000a090807a0a1a2a3a4a5"),
-		},
-		{
-			AESKey:            aesKey1to12,
-			CipherText:        mustHexDecode("000102030405060782531a60cc24945a4b8279181ab5c84df21ce7f9b73f42e197ea9c07e56b5eb17e5f4e"),
-			ClearHeaderOctets: 8,
-			Data:              mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20"),
-			M:                 10,
-			Nonce:             mustHexDecode("0000000b0a0908a0a1a2a3a4a5"),
-		},
-		{
-			AESKey:            aesKey1to12,
-			CipherText:        mustHexDecode("000102030405060708090a0b07342594157785152b074098330abb141b947b566aa9406b4d999988dd"),
-			ClearHeaderOctets: 12,
-			Data:              mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e"),
-			M:                 10,
-			Nonce:             mustHexDecode("0000000c0b0a09a0a1a2a3a4a5"),
-		},
-		{
-			AESKey:            aesKey1to12,
-			CipherText:        mustHexDecode("000102030405060708090a0b676bb20380b0e301e8ab79590a396da78b834934f53aa2e9107a8b6c022c"),
-			ClearHeaderOctets: 12,
-			Data:              mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"),
-			M:                 10,
-			Nonce:             mustHexDecode("0000000d0c0b0aa0a1a2a3a4a5"),
-		},
-		{
-			AESKey:            aesKey1to12,
-			CipherText:        mustHexDecode("000102030405060708090a0bc0ffa0d6f05bdb67f24d43a4338d2aa4bed7b20e43cd1aa31662e7ad65d6db"),
-			ClearHeaderOctets: 12,
-			Data:              mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20"),
-			M:                 10,
-			Nonce:             mustHexDecode("0000000e0d0c0ba0a1a2a3a4a5"),
-		},
-		// Vectors 13-24
-		{
-			AESKey:            aesKey13to24,
-			CipherText:        mustHexDecode("0be1a88bace018b14cb97f86a2a4689a877947ab8091ef5386a6ffbdd080f8e78cf7cb0cddd7b3"),
-			ClearHeaderOctets: 8,
-			Data:              mustHexDecode("0be1a88bace018b108e8cf97d820ea258460e96ad9cf5289054d895ceac47c"),
-			M:                 8,
-			Nonce:             mustHexDecode("00412b4ea9cdbe3c9696766cfa"),
-		},
-		{
-			AESKey:            aesKey13to24,
-			CipherText:        mustHexDecode("63018f76dc8a1bcb4ccb1e7ca981befaa0726c55d378061298c85c92814abc33c52ee81d7d77c08a"),
-			ClearHeaderOctets: 8,
-			Data:              mustHexDecode("63018f76dc8a1bcb9020ea6f91bdd85afa0039ba4baff9bfb79c7028949cd0ec"),
-			M:                 8,
-			Nonce:             mustHexDecode("0033568ef7b2633c9696766cfa"),
-		},
-		{
-			AESKey:            aesKey13to24,
-			CipherText:        mustHexDecode("aa6cfa36cae86b40b1d23a2220ddc0ac900d9aa03c61fcf4a559a4417767089708a776796edb723506"),
-			ClearHeaderOctets: 8,
-			Data:              mustHexDecode("aa6cfa36cae86b40b916e0eacc1c00d7dcec68ec0b3bbb1a02de8a2d1aa346132e"),
-			M:                 8,
-			Nonce:             mustHexDecode("00103fe41336713c9696766cfa"),
-		},
-		{
-			AESKey:            aesKey13to24,
-			CipherText:        mustHexDecode("d0d0735c531e1becf049c24414d253c3967b70609b7cbb7c499160283245269a6f49975bcadeaf"),
-			ClearHeaderOctets: 12,
-			Data:              mustHexDecode("d0d0735c531e1becf049c24412daac5630efa5396f770ce1a66b21f7b2101c"),
-			M:                 8,
-			Nonce:             mustHexDecode("00764c63b8058e3c9696766cfa"),
-		},
-		{
-			AESKey:            aesKey13to24,
-			CipherText:        mustHexDecode("77b60f011c03e1525899bcae5545ff1a085ee2efbf52b2e04bee1e2336c73e3f762c0c7744fe7e3c"),
-			ClearHeaderOctets: 12,
-			Data:              mustHexDecode("77b60f011c03e1525899bcaee88b6a46c78d63e52eb8c546efb5de6f75e9cc0d"),
-			M:                 8,
-			Nonce:             mustHexDecode("00f8b678094e3b3c9696766cfa"),
-		},
-		{
-			AESKey:            aesKey13to24,
-			CipherText:        mustHexDecode("cd9044d2b71fdb8120ea60c0009769ecabdf48625594c59251e6035722675e04c847099e5ae0704551"),
-			ClearHeaderOctets: 12,
-			Data:              mustHexDecode("cd9044d2b71fdb8120ea60c06435acbafb11a82e2f071d7ca4a5ebd93a803ba87f"),
-			M:                 8,
-			Nonce:             mustHexDecode("00d560912d3f703c9696766cfa"),
-		},
-		{
-			AESKey:            aesKey13to24,
-			CipherText:        mustHexDecode("d85bc7e69f944fb8bc218daa947427b6db386a99ac1aef23ade0b52939cb6a637cf9bec2408897c6ba"),
-			ClearHeaderOctets: 8,
-			Data:              mustHexDecode("d85bc7e69f944fb88a19b950bcf71a018e5e6701c91787659809d67dbedd18"),
-			M:                 10,
-			Nonce:             mustHexDecode("0042fff8f1951c3c9696766cfa"),
-		},
-		{
-			AESKey:            aesKey13to24,
-			CipherText:        mustHexDecode("74a0ebc9069f5b375810e6fd25874022e80361a478e3e9cf484ab04f447efff6f0a477cc2fc9bf548944"),
-			ClearHeaderOctets: 8,
-			Data:              mustHexDecode("74a0ebc9069f5b371761433c37c5a35fc1f39f406302eb907c6163be38c98437"),
-			M:                 10,
-			Nonce:             mustHexDecode("00920f40e56cdc3c9696766cfa"),
-		},
-		{
-			AESKey:            aesKey13to24,
-			CipherText:        mustHexDecode("44a3aa3aae6475caf2beed7bc5098e83feb5b31608f8e29c38819a89c8e776f1544d4151a4ed3a8b87b9ce"),
-			ClearHeaderOctets: 8,
-			Data:              mustHexDecode("44a3aa3aae6475caa434a8e58500c6e41530538862d686ea9e81301b5ae4226bfa"),
-			M:                 10,
-			Nonce:             mustHexDecode("0027ca0c7120bc3c9696766cfa"),
-		},
-		{
-			AESKey:            aesKey13to24,
-			CipherText:        mustHexDecode("ec46bb63b02520c33c49fd7031d750a09da3ed7fddd49a2032aabf17ec8ebf7d22c8088c666be5c197"),
-			ClearHeaderOctets: 12,
-			Data:              mustHexDecode("ec46bb63b02520c33c49fd70b96b49e21d621741632875db7f6c9243d2d7c2"),
-			M:                 10,
-			Nonce:             mustHexDecode("005b8ccbcd9af83c9696766cfa"),
-		},
-		{
-			AESKey:            aesKey13to24,
-			CipherText:        mustHexDecode("47a65ac78b3d594227e85e71e882f1dbd38ce3eda7c23f04dd65071eb41342acdf7e00dccec7ae52987d"),
-			ClearHeaderOctets: 12,
-			Data:              mustHexDecode("47a65ac78b3d594227e85e71e2fcfbb880442c731bf95167c8ffd7895e337076"),
-			M:                 10,
-			Nonce:             mustHexDecode("003ebe94044b9a3c9696766cfa"),
-		},
-		{
-			AESKey:            aesKey13to24,
-			CipherText:        mustHexDecode("6e37a6ef546d955d34ab6059f32905b88a641b04b9c9ffb58cc390900f3da12ab16dce9e82efa16da62059"),
-			ClearHeaderOctets: 12,
-			Data:              mustHexDecode("6e37a6ef546d955d34ab6059abf21c0b02feb88f856df4a37381bce3cc128517d4"),
-			M:                 10,
-			Nonce:             mustHexDecode("008d493b30ae8b3c9696766cfa"),
-		},
-	}
-
-	if len(cases) != 24 {
-		t.Fatalf("Expected %d test cases, got: %d", 24, len(cases))
-		t.FailNow()
-	}
-
-	for idx, c := range cases {
-		c := c
-		t.Run(fmt.Sprintf("packet vector #%d", idx+1), func(t *testing.T) {
-			t.Parallel()
-			blk, err := aes.NewCipher(c.AESKey)
-			if err != nil {
-				t.Fatalf("could not initialize AES block cipher from key: %v", err)
-			}
-
-			lccm, err := NewCCM(blk, c.M, len(c.Nonce))
-			if err != nil {
-				t.Fatalf("could not create CCM: %v", err)
-			}
-
-			t.Run("seal", func(t *testing.T) {
-				var dst []byte
-				dst = lccm.Seal(dst, c.Nonce, c.Data[c.ClearHeaderOctets:], c.Data[:c.ClearHeaderOctets])
-				if !bytes.Equal(c.CipherText[c.ClearHeaderOctets:], dst) {
-					t.Fatalf("ciphertext does not match, wanted %v, got %v",
-						c.CipherText[c.ClearHeaderOctets:], dst)
-				}
-			})
-
-			t.Run("open", func(t *testing.T) {
-				var dst []byte
-				dst, err = lccm.Open(dst, c.Nonce, c.CipherText[c.ClearHeaderOctets:], c.CipherText[:c.ClearHeaderOctets])
-				if err != nil {
-					t.Fatalf("failed to unseal: %v", err)
-				}
-				if !bytes.Equal(c.Data[c.ClearHeaderOctets:], dst) {
-					t.Fatalf("plaintext does not match, wanted %v, got %v",
-						c.Data[c.ClearHeaderOctets:], dst)
-				}
-			})
-		})
-	}
-}
-
-func TestNewCCMError(t *testing.T) {
-	cases := map[string]struct {
-		vector
-		err error
-	}{
-		"ShortNonceLength": {
-			vector{
-				AESKey: aesKey1to12,
-				M:      8,
-				Nonce:  mustHexDecode("a0a1a2a3a4a5"),
-			}, errInvalidNonceSize,
-		},
-		"LongNonceLength": {
-			vector{
-				AESKey: aesKey1to12,
-				M:      8,
-				Nonce:  mustHexDecode("0001020304050607080910111213"),
-			}, errInvalidNonceSize,
-		},
-		"ShortTag": {
-			vector{
-				AESKey: aesKey1to12,
-				M:      3,
-				Nonce:  mustHexDecode("00010203040506070809101112"),
-			}, errInvalidTagSize,
-		},
-		"LongTag": {
-			vector{
-				AESKey: aesKey1to12,
-				M:      17,
-				Nonce:  mustHexDecode("00010203040506070809101112"),
-			}, errInvalidTagSize,
-		},
-	}
-
-	for name, c := range cases {
-		c := c
-		t.Run(name, func(t *testing.T) {
-			blk, err := aes.NewCipher(c.AESKey)
-			if err != nil {
-				t.Fatalf("could not initialize AES block cipher from key: %v", err)
-			}
-
-			if _, err := NewCCM(blk, c.M, len(c.Nonce)); !errors.Is(err, c.err) {
-				t.Fatalf("expected error '%v', got '%v'", c.err, err)
-			}
-		})
-	}
-}
-
-func TestSealError(t *testing.T) {
-	cases := map[string]struct {
-		vector
-		err error
-	}{
-		"InvalidNonceLength": {
-			vector{
-				Data:  mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e"),
-				M:     8,
-				Nonce: mustHexDecode("00000003020100a0a1a2a3a4"), // short
-			}, errInvalidNonceSize,
-		},
-		"PlaintextTooLong": {
-			vector{
-				Data:  make([]byte, 100000),
-				M:     8,
-				Nonce: mustHexDecode("00000003020100a0a1a2a3a4a5"),
-			}, errPlaintextTooLong,
-		},
-	}
-
-	blk, err := aes.NewCipher(aesKey1to12)
-	if err != nil {
-		t.Fatalf("could not initialize AES block cipher from key: %v", err)
-	}
-
-	lccm, err := NewCCM(blk, 8, 13)
-	if err != nil {
-		t.Fatalf("could not create CCM: %v", err)
-	}
-
-	for name, c := range cases {
-		c := c
-		t.Run(name, func(t *testing.T) {
-			defer func() {
-				if err := recover(); !errors.Is(err.(error), c.err) {
-					t.Errorf("expected panic '%v', got '%v'", c.err, err)
-				}
-			}()
-			var dst []byte
-			_ = lccm.Seal(dst, c.Nonce, c.Data[c.ClearHeaderOctets:], c.Data[:c.ClearHeaderOctets])
-		})
-	}
-}
-
-func TestOpenError(t *testing.T) {
-	cases := map[string]struct {
-		vector
-		err error
-	}{
-		"CiphertextTooShort": {
-			vector{
-				CipherText:        make([]byte, 10),
-				ClearHeaderOctets: 8,
-				Nonce:             mustHexDecode("00000003020100a0a1a2a3a4a5"),
-			}, errCiphertextTooShort,
-		},
-		"CiphertextTooLong": {
-			vector{
-				CipherText:        make([]byte, 100000),
-				ClearHeaderOctets: 8,
-				Nonce:             mustHexDecode("00000003020100a0a1a2a3a4a5"),
-			}, errCiphertextTooLong,
-		},
-	}
-
-	blk, err := aes.NewCipher(aesKey1to12)
-	if err != nil {
-		t.Fatalf("could not initialize AES block cipher from key: %v", err)
-	}
-
-	lccm, err := NewCCM(blk, 8, 13)
-	if err != nil {
-		t.Fatalf("could not create CCM: %v", err)
-	}
-
-	for name, c := range cases {
-		c := c
-		t.Run(name, func(t *testing.T) {
-			var dst []byte
-			_, err = lccm.Open(dst, c.Nonce, c.CipherText[c.ClearHeaderOctets:], c.CipherText[:c.ClearHeaderOctets])
-			if !errors.Is(err, c.err) {
-				t.Errorf("expected error '%v', got '%v'", c.err, err)
-			}
-		})
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/ciphersuite/cbc.go b/anylink/dtls-2.0.9/pkg/crypto/ciphersuite/cbc.go
deleted file mode 100644
index 8ff1634..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/ciphersuite/cbc.go
+++ /dev/null
@@ -1,164 +0,0 @@
-package ciphersuite
-
-import ( //nolint:gci
-	"crypto/aes"
-	"crypto/cipher"
-	"crypto/hmac"
-	"crypto/rand"
-	"encoding/binary"
-	"hash"
-
-	"github.com/pion/dtls/v2/internal/util"
-	"github.com/pion/dtls/v2/pkg/crypto/prf"
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-// block ciphers using cipher block chaining.
-type cbcMode interface {
-	cipher.BlockMode
-	SetIV([]byte)
-}
-
-// CBC Provides an API to Encrypt/Decrypt DTLS 1.2 Packets
-type CBC struct {
-	writeCBC, readCBC cbcMode
-	writeMac, readMac []byte
-	h                 prf.HashFunc
-}
-
-// NewCBC creates a DTLS CBC Cipher
-func NewCBC(localKey, localWriteIV, localMac, remoteKey, remoteWriteIV, remoteMac []byte, h prf.HashFunc) (*CBC, error) {
-	writeBlock, err := aes.NewCipher(localKey)
-	if err != nil {
-		return nil, err
-	}
-
-	readBlock, err := aes.NewCipher(remoteKey)
-	if err != nil {
-		return nil, err
-	}
-
-	return &CBC{
-		writeCBC: cipher.NewCBCEncrypter(writeBlock, localWriteIV).(cbcMode),
-		writeMac: localMac,
-
-		readCBC: cipher.NewCBCDecrypter(readBlock, remoteWriteIV).(cbcMode),
-		readMac: remoteMac,
-		h:       h,
-	}, nil
-}
-
-// Encrypt encrypt a DTLS RecordLayer message
-func (c *CBC) Encrypt(pkt *recordlayer.RecordLayer, raw []byte) ([]byte, error) {
-	payload := raw[recordlayer.HeaderSize:]
-	raw = raw[:recordlayer.HeaderSize]
-	blockSize := c.writeCBC.BlockSize()
-
-	// Generate + Append MAC
-	h := pkt.Header
-
-	MAC, err := c.hmac(h.Epoch, h.SequenceNumber, h.ContentType, h.Version, payload, c.writeMac, c.h)
-	if err != nil {
-		return nil, err
-	}
-	payload = append(payload, MAC...)
-
-	// Generate + Append padding
-	padding := make([]byte, blockSize-len(payload)%blockSize)
-	paddingLen := len(padding)
-	for i := 0; i < paddingLen; i++ {
-		padding[i] = byte(paddingLen - 1)
-	}
-	payload = append(payload, padding...)
-
-	// Generate IV
-	iv := make([]byte, blockSize)
-	if _, err := rand.Read(iv); err != nil {
-		return nil, err
-	}
-
-	// Set IV + Encrypt + Prepend IV
-	c.writeCBC.SetIV(iv)
-	c.writeCBC.CryptBlocks(payload, payload)
-	payload = append(iv, payload...)
-
-	// Prepend unencrypte header with encrypted payload
-	raw = append(raw, payload...)
-
-	// Update recordLayer size to include IV+MAC+Padding
-	binary.BigEndian.PutUint16(raw[recordlayer.HeaderSize-2:], uint16(len(raw)-recordlayer.HeaderSize))
-
-	return raw, nil
-}
-
-// Decrypt decrypts a DTLS RecordLayer message
-func (c *CBC) Decrypt(in []byte) ([]byte, error) {
-	body := in[recordlayer.HeaderSize:]
-	blockSize := c.readCBC.BlockSize()
-	mac := c.h()
-
-	var h recordlayer.Header
-	err := h.Unmarshal(in)
-	switch {
-	case err != nil:
-		return nil, err
-	case h.ContentType == protocol.ContentTypeChangeCipherSpec:
-		// Nothing to encrypt with ChangeCipherSpec
-		return in, nil
-	case len(body)%blockSize != 0 || len(body) < blockSize+util.Max(mac.Size()+1, blockSize):
-		return nil, errNotEnoughRoomForNonce
-	}
-
-	// Set + remove per record IV
-	c.readCBC.SetIV(body[:blockSize])
-	body = body[blockSize:]
-
-	// Decrypt
-	c.readCBC.CryptBlocks(body, body)
-
-	// Padding+MAC needs to be checked in constant time
-	// Otherwise we reveal information about the level of correctness
-	paddingLen, paddingGood := examinePadding(body)
-	if paddingGood != 255 {
-		return nil, errInvalidMAC
-	}
-
-	macSize := mac.Size()
-	if len(body) < macSize {
-		return nil, errInvalidMAC
-	}
-
-	dataEnd := len(body) - macSize - paddingLen
-
-	expectedMAC := body[dataEnd : dataEnd+macSize]
-	actualMAC, err := c.hmac(h.Epoch, h.SequenceNumber, h.ContentType, h.Version, body[:dataEnd], c.readMac, c.h)
-
-	// Compute Local MAC and compare
-	if err != nil || !hmac.Equal(actualMAC, expectedMAC) {
-		return nil, errInvalidMAC
-	}
-
-	return append(in[:recordlayer.HeaderSize], body[:dataEnd]...), nil
-}
-
-func (c *CBC) hmac(epoch uint16, sequenceNumber uint64, contentType protocol.ContentType, protocolVersion protocol.Version, payload []byte, key []byte, hf func() hash.Hash) ([]byte, error) {
-	h := hmac.New(hf, key)
-
-	msg := make([]byte, 13)
-
-	binary.BigEndian.PutUint16(msg, epoch)
-	util.PutBigEndianUint48(msg[2:], sequenceNumber)
-	msg[8] = byte(contentType)
-	msg[9] = protocolVersion.Major
-	msg[10] = protocolVersion.Minor
-	binary.BigEndian.PutUint16(msg[11:], uint16(len(payload)))
-
-	if _, err := h.Write(msg); err != nil {
-		return nil, err
-	} else if _, err := h.Write(payload); err != nil {
-		return nil, err
-	}
-
-	return h.Sum(nil), nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/ciphersuite/ccm.go b/anylink/dtls-2.0.9/pkg/crypto/ciphersuite/ccm.go
deleted file mode 100644
index 354b1cc..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/ciphersuite/ccm.go
+++ /dev/null
@@ -1,104 +0,0 @@
-package ciphersuite
-
-import (
-	"crypto/aes"
-	"crypto/rand"
-	"encoding/binary"
-	"fmt"
-
-	"github.com/pion/dtls/v2/pkg/crypto/ccm"
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-// CCMTagLen is the length of Authentication Tag
-type CCMTagLen int
-
-// CCM Enums
-const (
-	CCMTagLength8  CCMTagLen = 8
-	CCMTagLength   CCMTagLen = 16
-	ccmNonceLength           = 12
-)
-
-// CCM Provides an API to Encrypt/Decrypt DTLS 1.2 Packets
-type CCM struct {
-	localCCM, remoteCCM         ccm.CCM
-	localWriteIV, remoteWriteIV []byte
-	tagLen                      CCMTagLen
-}
-
-// NewCCM creates a DTLS GCM Cipher
-func NewCCM(tagLen CCMTagLen, localKey, localWriteIV, remoteKey, remoteWriteIV []byte) (*CCM, error) {
-	localBlock, err := aes.NewCipher(localKey)
-	if err != nil {
-		return nil, err
-	}
-	localCCM, err := ccm.NewCCM(localBlock, int(tagLen), ccmNonceLength)
-	if err != nil {
-		return nil, err
-	}
-
-	remoteBlock, err := aes.NewCipher(remoteKey)
-	if err != nil {
-		return nil, err
-	}
-	remoteCCM, err := ccm.NewCCM(remoteBlock, int(tagLen), ccmNonceLength)
-	if err != nil {
-		return nil, err
-	}
-
-	return &CCM{
-		localCCM:      localCCM,
-		localWriteIV:  localWriteIV,
-		remoteCCM:     remoteCCM,
-		remoteWriteIV: remoteWriteIV,
-		tagLen:        tagLen,
-	}, nil
-}
-
-// Encrypt encrypt a DTLS RecordLayer message
-func (c *CCM) Encrypt(pkt *recordlayer.RecordLayer, raw []byte) ([]byte, error) {
-	payload := raw[recordlayer.HeaderSize:]
-	raw = raw[:recordlayer.HeaderSize]
-
-	nonce := append(append([]byte{}, c.localWriteIV[:4]...), make([]byte, 8)...)
-	if _, err := rand.Read(nonce[4:]); err != nil {
-		return nil, err
-	}
-
-	additionalData := generateAEADAdditionalData(&pkt.Header, len(payload))
-	encryptedPayload := c.localCCM.Seal(nil, nonce, payload, additionalData)
-
-	encryptedPayload = append(nonce[4:], encryptedPayload...)
-	raw = append(raw, encryptedPayload...)
-
-	// Update recordLayer size to include explicit nonce
-	binary.BigEndian.PutUint16(raw[recordlayer.HeaderSize-2:], uint16(len(raw)-recordlayer.HeaderSize))
-	return raw, nil
-}
-
-// Decrypt decrypts a DTLS RecordLayer message
-func (c *CCM) Decrypt(in []byte) ([]byte, error) {
-	var h recordlayer.Header
-	err := h.Unmarshal(in)
-	switch {
-	case err != nil:
-		return nil, err
-	case h.ContentType == protocol.ContentTypeChangeCipherSpec:
-		// Nothing to encrypt with ChangeCipherSpec
-		return in, nil
-	case len(in) <= (8 + recordlayer.HeaderSize):
-		return nil, errNotEnoughRoomForNonce
-	}
-
-	nonce := append(append([]byte{}, c.remoteWriteIV[:4]...), in[recordlayer.HeaderSize:recordlayer.HeaderSize+8]...)
-	out := in[recordlayer.HeaderSize+8:]
-
-	additionalData := generateAEADAdditionalData(&h, len(out)-int(c.tagLen))
-	out, err = c.remoteCCM.Open(out[:0], nonce, out, additionalData)
-	if err != nil {
-		return nil, fmt.Errorf("%w: %v", errDecryptPacket, err)
-	}
-	return append(in[:recordlayer.HeaderSize], out...), nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/ciphersuite/ciphersuite.go b/anylink/dtls-2.0.9/pkg/crypto/ciphersuite/ciphersuite.go
deleted file mode 100644
index 72beffd..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/ciphersuite/ciphersuite.go
+++ /dev/null
@@ -1,72 +0,0 @@
-// Package ciphersuite provides the crypto operations needed for a DTLS CipherSuite
-package ciphersuite
-
-import (
-	"encoding/binary"
-	"errors"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-var (
-	errNotEnoughRoomForNonce = &protocol.InternalError{Err: errors.New("buffer not long enough to contain nonce")} //nolint:goerr113
-	errDecryptPacket         = &protocol.TemporaryError{Err: errors.New("failed to decrypt packet")}               //nolint:goerr113
-	errInvalidMAC            = &protocol.TemporaryError{Err: errors.New("invalid mac")}                            //nolint:goerr113
-)
-
-func generateAEADAdditionalData(h *recordlayer.Header, payloadLen int) []byte {
-	var additionalData [13]byte
-	// SequenceNumber MUST be set first
-	// we only want uint48, clobbering an extra 2 (using uint64, Golang doesn't have uint48)
-	binary.BigEndian.PutUint64(additionalData[:], h.SequenceNumber)
-	binary.BigEndian.PutUint16(additionalData[:], h.Epoch)
-	additionalData[8] = byte(h.ContentType)
-	additionalData[9] = h.Version.Major
-	additionalData[10] = h.Version.Minor
-	binary.BigEndian.PutUint16(additionalData[len(additionalData)-2:], uint16(payloadLen))
-
-	return additionalData[:]
-}
-
-// examinePadding returns, in constant time, the length of the padding to remove
-// from the end of payload. It also returns a byte which is equal to 255 if the
-// padding was valid and 0 otherwise. See RFC 2246, Section 6.2.3.2.
-//
-// https://github.com/golang/go/blob/039c2081d1178f90a8fa2f4e6958693129f8de33/src/crypto/tls/conn.go#L245
-func examinePadding(payload []byte) (toRemove int, good byte) {
-	if len(payload) < 1 {
-		return 0, 0
-	}
-
-	paddingLen := payload[len(payload)-1]
-	t := uint(len(payload)-1) - uint(paddingLen)
-	// if len(payload) >= (paddingLen - 1) then the MSB of t is zero
-	good = byte(int32(^t) >> 31)
-
-	// The maximum possible padding length plus the actual length field
-	toCheck := 256
-	// The length of the padded data is public, so we can use an if here
-	if toCheck > len(payload) {
-		toCheck = len(payload)
-	}
-
-	for i := 0; i < toCheck; i++ {
-		t := uint(paddingLen) - uint(i)
-		// if i <= paddingLen then the MSB of t is zero
-		mask := byte(int32(^t) >> 31)
-		b := payload[len(payload)-1-i]
-		good &^= mask&paddingLen ^ mask&b
-	}
-
-	// We AND together the bits of good and replicate the result across
-	// all the bits.
-	good &= good << 4
-	good &= good << 2
-	good &= good << 1
-	good = uint8(int8(good) >> 7)
-
-	toRemove = int(paddingLen) + 1
-
-	return toRemove, good
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/ciphersuite/gcm.go b/anylink/dtls-2.0.9/pkg/crypto/ciphersuite/gcm.go
deleted file mode 100644
index af986d4..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/ciphersuite/gcm.go
+++ /dev/null
@@ -1,100 +0,0 @@
-package ciphersuite
-
-import (
-	"crypto/aes"
-	"crypto/cipher"
-	"crypto/rand"
-	"encoding/binary"
-	"fmt"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/recordlayer"
-)
-
-const (
-	gcmTagLength   = 16
-	gcmNonceLength = 12
-)
-
-// GCM Provides an API to Encrypt/Decrypt DTLS 1.2 Packets
-type GCM struct {
-	localGCM, remoteGCM         cipher.AEAD
-	localWriteIV, remoteWriteIV []byte
-}
-
-// NewGCM creates a DTLS GCM Cipher
-func NewGCM(localKey, localWriteIV, remoteKey, remoteWriteIV []byte) (*GCM, error) {
-	localBlock, err := aes.NewCipher(localKey)
-	if err != nil {
-		return nil, err
-	}
-	localGCM, err := cipher.NewGCM(localBlock)
-	if err != nil {
-		return nil, err
-	}
-
-	remoteBlock, err := aes.NewCipher(remoteKey)
-	if err != nil {
-		return nil, err
-	}
-	remoteGCM, err := cipher.NewGCM(remoteBlock)
-	if err != nil {
-		return nil, err
-	}
-
-	return &GCM{
-		localGCM:      localGCM,
-		localWriteIV:  localWriteIV,
-		remoteGCM:     remoteGCM,
-		remoteWriteIV: remoteWriteIV,
-	}, nil
-}
-
-// Encrypt encrypt a DTLS RecordLayer message
-func (g *GCM) Encrypt(pkt *recordlayer.RecordLayer, raw []byte) ([]byte, error) {
-	payload := raw[recordlayer.HeaderSize:]
-	raw = raw[:recordlayer.HeaderSize]
-
-	nonce := make([]byte, gcmNonceLength)
-	copy(nonce, g.localWriteIV[:4])
-	if _, err := rand.Read(nonce[4:]); err != nil {
-		return nil, err
-	}
-
-	additionalData := generateAEADAdditionalData(&pkt.Header, len(payload))
-	encryptedPayload := g.localGCM.Seal(nil, nonce, payload, additionalData)
-	r := make([]byte, len(raw)+len(nonce[4:])+len(encryptedPayload))
-	copy(r, raw)
-	copy(r[len(raw):], nonce[4:])
-	copy(r[len(raw)+len(nonce[4:]):], encryptedPayload)
-
-	// Update recordLayer size to include explicit nonce
-	binary.BigEndian.PutUint16(r[recordlayer.HeaderSize-2:], uint16(len(r)-recordlayer.HeaderSize))
-	return r, nil
-}
-
-// Decrypt decrypts a DTLS RecordLayer message
-func (g *GCM) Decrypt(in []byte) ([]byte, error) {
-	var h recordlayer.Header
-	err := h.Unmarshal(in)
-	switch {
-	case err != nil:
-		return nil, err
-	case h.ContentType == protocol.ContentTypeChangeCipherSpec:
-		// Nothing to encrypt with ChangeCipherSpec
-		return in, nil
-	case len(in) <= (8 + recordlayer.HeaderSize):
-		return nil, errNotEnoughRoomForNonce
-	}
-
-	nonce := make([]byte, 0, gcmNonceLength)
-	nonce = append(append(nonce, g.remoteWriteIV[:4]...), in[recordlayer.HeaderSize:recordlayer.HeaderSize+8]...)
-	out := in[recordlayer.HeaderSize+8:]
-
-	additionalData := generateAEADAdditionalData(&h, len(out)-gcmTagLength)
-	out, err = g.remoteGCM.Open(out[:0], nonce, out, additionalData)
-	if err != nil {
-		return nil, fmt.Errorf("%w: %v", errDecryptPacket, err)
-	}
-	return append(in[:recordlayer.HeaderSize], out...), nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/clientcertificate/client_certificate.go b/anylink/dtls-2.0.9/pkg/crypto/clientcertificate/client_certificate.go
deleted file mode 100644
index c222c01..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/clientcertificate/client_certificate.go
+++ /dev/null
@@ -1,22 +0,0 @@
-// Package clientcertificate provides all the support Client Certificate types
-package clientcertificate
-
-// Type is used to communicate what
-// type of certificate is being transported
-//
-//https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-2
-type Type byte
-
-// ClientCertificateType enums
-const (
-	RSASign   Type = 1
-	ECDSASign Type = 64
-)
-
-// Types returns all valid ClientCertificate Types
-func Types() map[Type]bool {
-	return map[Type]bool{
-		RSASign:   true,
-		ECDSASign: true,
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/elliptic/elliptic.go b/anylink/dtls-2.0.9/pkg/crypto/elliptic/elliptic.go
deleted file mode 100644
index 5b0e4fa..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/elliptic/elliptic.go
+++ /dev/null
@@ -1,99 +0,0 @@
-// Package elliptic provides elliptic curve cryptography for DTLS
-package elliptic
-
-import (
-	"crypto/elliptic"
-	"crypto/rand"
-	"errors"
-
-	"golang.org/x/crypto/curve25519"
-)
-
-var errInvalidNamedCurve = errors.New("invalid named curve")
-
-// CurvePointFormat is used to represent the IANA registered curve points
-//
-// https://www.iana.org/assignments/tls-parameters/tls-parameters.xml#tls-parameters-9
-type CurvePointFormat byte
-
-// CurvePointFormat enums
-const (
-	CurvePointFormatUncompressed CurvePointFormat = 0
-)
-
-// Keypair is a Curve with a Private/Public Keypair
-type Keypair struct {
-	Curve      Curve
-	PublicKey  []byte
-	PrivateKey []byte
-}
-
-// CurveType is used to represent the IANA registered curve types for TLS
-//
-// https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-10
-type CurveType byte
-
-// CurveType enums
-const (
-	CurveTypeNamedCurve CurveType = 0x03
-)
-
-// CurveTypes returns all known curves
-func CurveTypes() map[CurveType]struct{} {
-	return map[CurveType]struct{}{
-		CurveTypeNamedCurve: {},
-	}
-}
-
-// Curve is used to represent the IANA registered curves for TLS
-//
-// https://www.iana.org/assignments/tls-parameters/tls-parameters.xml#tls-parameters-8
-type Curve uint16
-
-// Curve enums
-const (
-	P256   Curve = 0x0017
-	P384   Curve = 0x0018
-	X25519 Curve = 0x001d
-)
-
-// Curves returns all curves we implement
-func Curves() map[Curve]bool {
-	return map[Curve]bool{
-		X25519: true,
-		P256:   true,
-		P384:   true,
-	}
-}
-
-// GenerateKeypair generates a keypair for the given Curve
-func GenerateKeypair(c Curve) (*Keypair, error) {
-	switch c { //nolint:golint
-	case X25519:
-		tmp := make([]byte, 32)
-		if _, err := rand.Read(tmp); err != nil {
-			return nil, err
-		}
-
-		var public, private [32]byte
-		copy(private[:], tmp)
-
-		curve25519.ScalarBaseMult(&public, &private)
-		return &Keypair{X25519, public[:], private[:]}, nil
-	case P256:
-		return ellipticCurveKeypair(P256, elliptic.P256(), elliptic.P256())
-	case P384:
-		return ellipticCurveKeypair(P384, elliptic.P384(), elliptic.P384())
-	default:
-		return nil, errInvalidNamedCurve
-	}
-}
-
-func ellipticCurveKeypair(nc Curve, c1, c2 elliptic.Curve) (*Keypair, error) {
-	privateKey, x, y, err := elliptic.GenerateKey(c1, rand.Reader)
-	if err != nil {
-		return nil, err
-	}
-
-	return &Keypair{nc, elliptic.Marshal(c2, x, y), privateKey}, nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/fingerprint/fingerprint.go b/anylink/dtls-2.0.9/pkg/crypto/fingerprint/fingerprint.go
deleted file mode 100644
index 215b44e..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/fingerprint/fingerprint.go
+++ /dev/null
@@ -1,50 +0,0 @@
-// Package fingerprint provides a helper to create fingerprint string from certificate
-package fingerprint
-
-import (
-	"crypto"
-	"crypto/x509"
-	"errors"
-	"fmt"
-)
-
-var (
-	errHashUnavailable          = errors.New("fingerprint: hash algorithm is not linked into the binary")
-	errInvalidFingerprintLength = errors.New("fingerprint: invalid fingerprint length")
-)
-
-// Fingerprint creates a fingerprint for a certificate using the specified hash algorithm
-func Fingerprint(cert *x509.Certificate, algo crypto.Hash) (string, error) {
-	if !algo.Available() {
-		return "", errHashUnavailable
-	}
-	h := algo.New()
-	for i := 0; i < len(cert.Raw); {
-		n, _ := h.Write(cert.Raw[i:])
-		// Hash.Writer is specified to be never returning an error.
-		// https://golang.org/pkg/hash/#Hash
-		i += n
-	}
-	digest := []byte(fmt.Sprintf("%x", h.Sum(nil)))
-
-	digestlen := len(digest)
-	if digestlen == 0 {
-		return "", nil
-	}
-	if digestlen%2 != 0 {
-		return "", errInvalidFingerprintLength
-	}
-	res := make([]byte, digestlen>>1+digestlen-1)
-
-	pos := 0
-	for i, c := range digest {
-		res[pos] = c
-		pos++
-		if (i)%2 != 0 && i < digestlen-1 {
-			res[pos] = byte(':')
-			pos++
-		}
-	}
-
-	return string(res), nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/fingerprint/fingerprint_test.go b/anylink/dtls-2.0.9/pkg/crypto/fingerprint/fingerprint_test.go
deleted file mode 100644
index 1a7a11f..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/fingerprint/fingerprint_test.go
+++ /dev/null
@@ -1,52 +0,0 @@
-package fingerprint
-
-import (
-	"crypto"
-	"crypto/x509"
-	"errors"
-	"testing"
-)
-
-var errInvalidHashID = errors.New("invalid hash ID")
-
-func TestFingerprint(t *testing.T) {
-	rawCertificate := []byte{
-		0x30, 0x82, 0x01, 0x98, 0x30, 0x82, 0x01, 0x3d, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x11, 0x00, 0xa9, 0x91, 0x76, 0x0a, 0xcd, 0x97, 0x4c, 0x36, 0xba,
-		0xc9, 0xc2, 0x66, 0x91, 0x47, 0x6c, 0xac, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x30, 0x2b, 0x31, 0x29, 0x30, 0x27,
-		0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x20, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
-		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x39, 0x31, 0x31, 0x31, 0x30, 0x30,
-		0x39, 0x30, 0x34, 0x32, 0x33, 0x5a, 0x17, 0x0d, 0x31, 0x39, 0x31, 0x32, 0x31, 0x30, 0x30, 0x39, 0x30, 0x34, 0x32, 0x33, 0x5a, 0x30, 0x2b, 0x31, 0x29,
-		0x30, 0x27, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x20, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
-		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48,
-		0xce, 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0x9c, 0x12, 0x8e, 0xb5, 0x21, 0x23, 0x9f,
-		0x35, 0x5d, 0x39, 0x64, 0xc3, 0x75, 0x81, 0xa4, 0xc8, 0xc8, 0x08, 0x8a, 0xa8, 0x42, 0x30, 0x30, 0x65, 0xb8, 0xb1, 0x3e, 0x4a, 0x51, 0x86, 0xeb, 0xad,
-		0x03, 0x02, 0x35, 0x83, 0xc4, 0x19, 0x3a, 0x5b, 0x79, 0x83, 0xec, 0x59, 0x0e, 0x4f, 0x99, 0xb1, 0xd2, 0xf0, 0x50, 0xfa, 0xb8, 0x5f, 0xfc, 0x88, 0xf3,
-		0x15, 0xed, 0xb8, 0x14, 0xf0, 0xba, 0xcd, 0xa3, 0x42, 0x30, 0x40, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04, 0x03, 0x02,
-		0x05, 0xa0, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x25, 0x04, 0x16, 0x30, 0x14, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, 0x02, 0x06, 0x08,
-		0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, 0x01, 0x30, 0x0f, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x05, 0x30, 0x03, 0x01, 0x01, 0xff,
-		0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x03, 0x49, 0x00, 0x30, 0x46, 0x02, 0x21, 0x00, 0xcd, 0x44, 0xb1, 0xf2, 0x09,
-		0xe5, 0xf1, 0xf4, 0xc9, 0x26, 0x95, 0x9a, 0x2d, 0x6d, 0xf3, 0x0c, 0xb8, 0xeb, 0x27, 0x2d, 0x81, 0x19, 0xe9, 0x51, 0xf7, 0xad, 0x64, 0x7d, 0x42, 0x32,
-		0x9e, 0xf8, 0x02, 0x21, 0x00, 0xee, 0xad, 0x96, 0x41, 0xf1, 0x12, 0xd0, 0x6b, 0xcd, 0x09, 0xf0, 0x3c, 0x67, 0xb3, 0xdd, 0xed, 0x0a, 0xf1, 0xd8, 0x41,
-		0x4f, 0x61, 0xfd, 0x53, 0x1d, 0xf5, 0x27, 0xbe, 0x6d, 0x0b, 0xe2, 0x0d,
-	}
-
-	cert, err := x509.ParseCertificate(rawCertificate)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	const expectedSHA256 = "60:ef:f5:79:ad:8d:3e:d7:e8:4d:5a:5a:d6:1e:71:2d:47:52:a5:cb:df:34:37:87:10:a5:4e:d7:2a:2c:37:34"
-	actualSHA256, err := Fingerprint(cert, crypto.SHA256)
-	if err != nil {
-		t.Fatal(err)
-	} else if actualSHA256 != expectedSHA256 {
-		t.Fatalf("Fingerprint SHA256 mismatch expected(%s) actual(%s)", expectedSHA256, actualSHA256)
-	}
-}
-
-func TestFingerprint_UnavailableHash(t *testing.T) {
-	_, err := Fingerprint(&x509.Certificate{}, crypto.Hash(0xFFFFFFFF))
-	if !errors.Is(err, errHashUnavailable) {
-		t.Errorf("%w: Expected error '%v' for invalid hash ID, got '%v'", errInvalidHashID, errHashUnavailable, err)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/fingerprint/hash.go b/anylink/dtls-2.0.9/pkg/crypto/fingerprint/hash.go
deleted file mode 100644
index 09107db..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/fingerprint/hash.go
+++ /dev/null
@@ -1,37 +0,0 @@
-package fingerprint
-
-import (
-	"crypto"
-	"errors"
-)
-
-var errInvalidHashAlgorithm = errors.New("fingerprint: invalid hash algorithm")
-
-func nameToHash() map[string]crypto.Hash {
-	return map[string]crypto.Hash{
-		"md5":     crypto.MD5,    // [RFC3279]
-		"sha-1":   crypto.SHA1,   // [RFC3279]
-		"sha-224": crypto.SHA224, // [RFC4055]
-		"sha-256": crypto.SHA256, // [RFC4055]
-		"sha-384": crypto.SHA384, // [RFC4055]
-		"sha-512": crypto.SHA512, // [RFC4055]
-	}
-}
-
-// HashFromString allows looking up a hash algorithm by it's string representation
-func HashFromString(s string) (crypto.Hash, error) {
-	if h, ok := nameToHash()[s]; ok {
-		return h, nil
-	}
-	return 0, errInvalidHashAlgorithm
-}
-
-// StringFromHash allows looking up a string representation of the crypto.Hash.
-func StringFromHash(hash crypto.Hash) (string, error) {
-	for s, h := range nameToHash() {
-		if h == hash {
-			return s, nil
-		}
-	}
-	return "", errInvalidHashAlgorithm
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/fingerprint/hash_test.go b/anylink/dtls-2.0.9/pkg/crypto/fingerprint/hash_test.go
deleted file mode 100644
index 09ed969..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/fingerprint/hash_test.go
+++ /dev/null
@@ -1,41 +0,0 @@
-package fingerprint
-
-import (
-	"crypto"
-	"errors"
-	"testing"
-)
-
-func TestHashFromString(t *testing.T) {
-	t.Run("InvalidHashAlgorithm", func(t *testing.T) {
-		_, err := HashFromString("invalid-hash-algorithm")
-		if !errors.Is(err, errInvalidHashAlgorithm) {
-			t.Errorf("Expected error '%v' for invalid hash name, got '%v'", errInvalidHashAlgorithm, err)
-		}
-	})
-	t.Run("ValidHashAlgorithm", func(t *testing.T) {
-		h, err := HashFromString("sha-512")
-		if err != nil {
-			t.Fatalf("Unexpected error for valid hash name, got '%v'", err)
-		}
-		if h != crypto.SHA512 {
-			t.Errorf("Expected hash ID of %d, got %d", int(crypto.SHA512), int(h))
-		}
-	})
-}
-
-func TestStringFromHash_Roundtrip(t *testing.T) {
-	for _, h := range nameToHash() {
-		s, err := StringFromHash(h)
-		if err != nil {
-			t.Fatalf("Unexpected error for valid hash algorithm, got '%v'", err)
-		}
-		h2, err := HashFromString(s)
-		if err != nil {
-			t.Fatalf("Unexpected error for valid hash name, got '%v'", err)
-		}
-		if h != h2 {
-			t.Errorf("Hash value doesn't match, expected: 0x%x, got 0x%x", h, h2)
-		}
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/hash/hash.go b/anylink/dtls-2.0.9/pkg/crypto/hash/hash.go
deleted file mode 100644
index 660326f..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/hash/hash.go
+++ /dev/null
@@ -1,126 +0,0 @@
-// Package hash provides TLS HashAlgorithm as defined in TLS 1.2
-package hash
-
-import ( //nolint:gci
-	"crypto"
-	"crypto/md5"  //nolint:gosec
-	"crypto/sha1" //nolint:gosec
-	"crypto/sha256"
-	"crypto/sha512"
-)
-
-// Algorithm is used to indicate the hash algorithm used
-// https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-18
-type Algorithm uint16
-
-// Supported hash algorithms
-const (
-	None    Algorithm = 0 // Blacklisted
-	MD5     Algorithm = 1 // Blacklisted
-	SHA1    Algorithm = 2 // Blacklisted
-	SHA224  Algorithm = 3
-	SHA256  Algorithm = 4
-	SHA384  Algorithm = 5
-	SHA512  Algorithm = 6
-	Ed25519 Algorithm = 8
-)
-
-// String makes hashAlgorithm printable
-func (a Algorithm) String() string {
-	switch a {
-	case None:
-		return "none"
-	case MD5:
-		return "md5" // [RFC3279]
-	case SHA1:
-		return "sha-1" // [RFC3279]
-	case SHA224:
-		return "sha-224" // [RFC4055]
-	case SHA256:
-		return "sha-256" // [RFC4055]
-	case SHA384:
-		return "sha-384" // [RFC4055]
-	case SHA512:
-		return "sha-512" // [RFC4055]
-	case Ed25519:
-		return "null"
-	default:
-		return "unknown or unsupported hash algorithm"
-	}
-}
-
-// Digest performs a digest on the passed value
-func (a Algorithm) Digest(b []byte) []byte {
-	switch a {
-	case None:
-		return nil
-	case MD5:
-		hash := md5.Sum(b) // #nosec
-		return hash[:]
-	case SHA1:
-		hash := sha1.Sum(b) // #nosec
-		return hash[:]
-	case SHA224:
-		hash := sha256.Sum224(b)
-		return hash[:]
-	case SHA256:
-		hash := sha256.Sum256(b)
-		return hash[:]
-	case SHA384:
-		hash := sha512.Sum384(b)
-		return hash[:]
-	case SHA512:
-		hash := sha512.Sum512(b)
-		return hash[:]
-	default:
-		return nil
-	}
-}
-
-// Insecure returns if the given HashAlgorithm is considered secure in DTLS 1.2
-func (a Algorithm) Insecure() bool {
-	switch a {
-	case None, MD5, SHA1:
-		return true
-	default:
-		return false
-	}
-}
-
-// CryptoHash returns the crypto.Hash implementation for the given HashAlgorithm
-func (a Algorithm) CryptoHash() crypto.Hash {
-	switch a {
-	case None:
-		return crypto.Hash(0)
-	case MD5:
-		return crypto.MD5
-	case SHA1:
-		return crypto.SHA1
-	case SHA224:
-		return crypto.SHA224
-	case SHA256:
-		return crypto.SHA256
-	case SHA384:
-		return crypto.SHA384
-	case SHA512:
-		return crypto.SHA512
-	case Ed25519:
-		return crypto.Hash(0)
-	default:
-		return crypto.Hash(0)
-	}
-}
-
-// Algorithms returns all the supported Hash Algorithms
-func Algorithms() map[Algorithm]struct{} {
-	return map[Algorithm]struct{}{
-		None:    {},
-		MD5:     {},
-		SHA1:    {},
-		SHA224:  {},
-		SHA256:  {},
-		SHA384:  {},
-		SHA512:  {},
-		Ed25519: {},
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/hash/hash_test.go b/anylink/dtls-2.0.9/pkg/crypto/hash/hash_test.go
deleted file mode 100644
index 145d6d8..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/hash/hash_test.go
+++ /dev/null
@@ -1,25 +0,0 @@
-package hash
-
-import (
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/crypto/fingerprint"
-)
-
-func TestHashAlgorithm_StringRoundtrip(t *testing.T) {
-	for algo := range Algorithms() {
-		if algo == Ed25519 || algo == None {
-			continue
-		}
-
-		str := algo.String()
-		hash1 := algo.CryptoHash()
-		hash2, err := fingerprint.HashFromString(str)
-		if err != nil {
-			t.Fatalf("fingerprint.HashFromString failed: %v", err)
-		}
-		if hash1 != hash2 {
-			t.Errorf("Hash algorithm mismatch, input: %d, after roundtrip: %d", int(hash1), int(hash2))
-		}
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/prf/prf.go b/anylink/dtls-2.0.9/pkg/crypto/prf/prf.go
deleted file mode 100644
index d33df19..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/prf/prf.go
+++ /dev/null
@@ -1,224 +0,0 @@
-// Package prf implements TLS 1.2 Pseudorandom functions
-package prf
-
-import ( //nolint:gci
-	ellipticStdlib "crypto/elliptic"
-	"crypto/hmac"
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"hash"
-	"math"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"golang.org/x/crypto/curve25519"
-)
-
-const (
-	masterSecretLabel         = "master secret"
-	extendedMasterSecretLabel = "extended master secret"
-	keyExpansionLabel         = "key expansion"
-	verifyDataClientLabel     = "client finished"
-	verifyDataServerLabel     = "server finished"
-)
-
-// HashFunc allows callers to decide what hash is used in PRF
-type HashFunc func() hash.Hash
-
-// EncryptionKeys is all the state needed for a TLS CipherSuite
-type EncryptionKeys struct {
-	MasterSecret   []byte
-	ClientMACKey   []byte
-	ServerMACKey   []byte
-	ClientWriteKey []byte
-	ServerWriteKey []byte
-	ClientWriteIV  []byte
-	ServerWriteIV  []byte
-}
-
-var errInvalidNamedCurve = &protocol.FatalError{Err: errors.New("invalid named curve")} //nolint:goerr113
-
-func (e *EncryptionKeys) String() string {
-	return fmt.Sprintf(`encryptionKeys:
-- masterSecret: %#v
-- clientMACKey: %#v
-- serverMACKey: %#v
-- clientWriteKey: %#v
-- serverWriteKey: %#v
-- clientWriteIV: %#v
-- serverWriteIV: %#v
-`,
-		e.MasterSecret,
-		e.ClientMACKey,
-		e.ServerMACKey,
-		e.ClientWriteKey,
-		e.ServerWriteKey,
-		e.ClientWriteIV,
-		e.ServerWriteIV)
-}
-
-// PSKPreMasterSecret generates the PSK Premaster Secret
-// The premaster secret is formed as follows: if the PSK is N octets
-// long, concatenate a uint16 with the value N, N zero octets, a second
-// uint16 with the value N, and the PSK itself.
-//
-// https://tools.ietf.org/html/rfc4279#section-2
-func PSKPreMasterSecret(psk []byte) []byte {
-	pskLen := uint16(len(psk))
-
-	out := append(make([]byte, 2+pskLen+2), psk...)
-	binary.BigEndian.PutUint16(out, pskLen)
-	binary.BigEndian.PutUint16(out[2+pskLen:], pskLen)
-
-	return out
-}
-
-// PreMasterSecret implements TLS 1.2 Premaster Secret generation given a keypair and a curve
-func PreMasterSecret(publicKey, privateKey []byte, curve elliptic.Curve) ([]byte, error) {
-	switch curve {
-	case elliptic.X25519:
-		return curve25519.X25519(privateKey, publicKey)
-	case elliptic.P256:
-		return ellipticCurvePreMasterSecret(publicKey, privateKey, ellipticStdlib.P256(), ellipticStdlib.P256())
-	case elliptic.P384:
-		return ellipticCurvePreMasterSecret(publicKey, privateKey, ellipticStdlib.P384(), ellipticStdlib.P384())
-	default:
-		return nil, errInvalidNamedCurve
-	}
-}
-
-func ellipticCurvePreMasterSecret(publicKey, privateKey []byte, c1, c2 ellipticStdlib.Curve) ([]byte, error) {
-	x, y := ellipticStdlib.Unmarshal(c1, publicKey)
-	if x == nil || y == nil {
-		return nil, errInvalidNamedCurve
-	}
-
-	result, _ := c2.ScalarMult(x, y, privateKey)
-	preMasterSecret := make([]byte, (c2.Params().BitSize+7)>>3)
-	resultBytes := result.Bytes()
-	copy(preMasterSecret[len(preMasterSecret)-len(resultBytes):], resultBytes)
-	return preMasterSecret, nil
-}
-
-// PHash is PRF is the SHA-256 hash function is used for all cipher suites
-// defined in this TLS 1.2 document and in TLS documents published prior to this
-// document when TLS 1.2 is negotiated.  New cipher suites MUST explicitly
-// specify a PRF and, in general, SHOULD use the TLS PRF with SHA-256 or a
-// stronger standard hash function.
-//
-//    P_hash(secret, seed) = HMAC_hash(secret, A(1) + seed) +
-//                           HMAC_hash(secret, A(2) + seed) +
-//                           HMAC_hash(secret, A(3) + seed) + ...
-//
-// A() is defined as:
-//
-//    A(0) = seed
-//    A(i) = HMAC_hash(secret, A(i-1))
-//
-// P_hash can be iterated as many times as necessary to produce the
-// required quantity of data.  For example, if P_SHA256 is being used to
-// create 80 bytes of data, it will have to be iterated three times
-// (through A(3)), creating 96 bytes of output data; the last 16 bytes
-// of the final iteration will then be discarded, leaving 80 bytes of
-// output data.
-//
-// https://tools.ietf.org/html/rfc4346w
-func PHash(secret, seed []byte, requestedLength int, h HashFunc) ([]byte, error) {
-	hmacSHA256 := func(key, data []byte) ([]byte, error) {
-		mac := hmac.New(h, key)
-		if _, err := mac.Write(data); err != nil {
-			return nil, err
-		}
-		return mac.Sum(nil), nil
-	}
-
-	var err error
-	lastRound := seed
-	out := []byte{}
-
-	iterations := int(math.Ceil(float64(requestedLength) / float64(h().Size())))
-	for i := 0; i < iterations; i++ {
-		lastRound, err = hmacSHA256(secret, lastRound)
-		if err != nil {
-			return nil, err
-		}
-		withSecret, err := hmacSHA256(secret, append(lastRound, seed...))
-		if err != nil {
-			return nil, err
-		}
-		out = append(out, withSecret...)
-	}
-
-	return out[:requestedLength], nil
-}
-
-// ExtendedMasterSecret generates a Extended MasterSecret as defined in
-// https://tools.ietf.org/html/rfc7627
-func ExtendedMasterSecret(preMasterSecret, sessionHash []byte, h HashFunc) ([]byte, error) {
-	seed := append([]byte(extendedMasterSecretLabel), sessionHash...)
-	return PHash(preMasterSecret, seed, 48, h)
-}
-
-// MasterSecret generates a TLS 1.2 MasterSecret
-func MasterSecret(preMasterSecret, clientRandom, serverRandom []byte, h HashFunc) ([]byte, error) {
-	seed := append(append([]byte(masterSecretLabel), clientRandom...), serverRandom...)
-	return PHash(preMasterSecret, seed, 48, h)
-}
-
-// GenerateEncryptionKeys is the final step TLS 1.2 PRF. Given all state generated so far generates
-// the final keys need for encryption
-func GenerateEncryptionKeys(masterSecret, clientRandom, serverRandom []byte, macLen, keyLen, ivLen int, h HashFunc) (*EncryptionKeys, error) {
-	seed := append(append([]byte(keyExpansionLabel), serverRandom...), clientRandom...)
-	keyMaterial, err := PHash(masterSecret, seed, (2*macLen)+(2*keyLen)+(2*ivLen), h)
-	if err != nil {
-		return nil, err
-	}
-
-	clientMACKey := keyMaterial[:macLen]
-	keyMaterial = keyMaterial[macLen:]
-
-	serverMACKey := keyMaterial[:macLen]
-	keyMaterial = keyMaterial[macLen:]
-
-	clientWriteKey := keyMaterial[:keyLen]
-	keyMaterial = keyMaterial[keyLen:]
-
-	serverWriteKey := keyMaterial[:keyLen]
-	keyMaterial = keyMaterial[keyLen:]
-
-	clientWriteIV := keyMaterial[:ivLen]
-	keyMaterial = keyMaterial[ivLen:]
-
-	serverWriteIV := keyMaterial[:ivLen]
-
-	return &EncryptionKeys{
-		MasterSecret:   masterSecret,
-		ClientMACKey:   clientMACKey,
-		ServerMACKey:   serverMACKey,
-		ClientWriteKey: clientWriteKey,
-		ServerWriteKey: serverWriteKey,
-		ClientWriteIV:  clientWriteIV,
-		ServerWriteIV:  serverWriteIV,
-	}, nil
-}
-
-func prfVerifyData(masterSecret, handshakeBodies []byte, label string, hashFunc HashFunc) ([]byte, error) {
-	h := hashFunc()
-	if _, err := h.Write(handshakeBodies); err != nil {
-		return nil, err
-	}
-
-	seed := append([]byte(label), h.Sum(nil)...)
-	return PHash(masterSecret, seed, 12, hashFunc)
-}
-
-// VerifyDataClient is caled on the Client Side to either verify or generate the VerifyData message
-func VerifyDataClient(masterSecret, handshakeBodies []byte, h HashFunc) ([]byte, error) {
-	return prfVerifyData(masterSecret, handshakeBodies, verifyDataClientLabel, h)
-}
-
-// VerifyDataServer is caled on the Server Side to either verify or generate the VerifyData message
-func VerifyDataServer(masterSecret, handshakeBodies []byte, h HashFunc) ([]byte, error) {
-	return prfVerifyData(masterSecret, handshakeBodies, verifyDataServerLabel, h)
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/prf/prf_test.go b/anylink/dtls-2.0.9/pkg/crypto/prf/prf_test.go
deleted file mode 100644
index 1152216..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/prf/prf_test.go
+++ /dev/null
@@ -1,80 +0,0 @@
-package prf
-
-import (
-	"bytes"
-	"crypto/sha256"
-	"reflect"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-)
-
-func TestPreMasterSecret(t *testing.T) {
-	privateKey := []byte{0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f}
-	publicKey := []byte{0x9f, 0xd7, 0xad, 0x6d, 0xcf, 0xf4, 0x29, 0x8d, 0xd3, 0xf9, 0x6d, 0x5b, 0x1b, 0x2a, 0xf9, 0x10, 0xa0, 0x53, 0x5b, 0x14, 0x88, 0xd7, 0xf8, 0xfa, 0xbb, 0x34, 0x9a, 0x98, 0x28, 0x80, 0xb6, 0x15}
-	expectedPreMasterSecret := []byte{0xdf, 0x4a, 0x29, 0x1b, 0xaa, 0x1e, 0xb7, 0xcf, 0xa6, 0x93, 0x4b, 0x29, 0xb4, 0x74, 0xba, 0xad, 0x26, 0x97, 0xe2, 0x9f, 0x1f, 0x92, 0x0d, 0xcc, 0x77, 0xc8, 0xa0, 0xa0, 0x88, 0x44, 0x76, 0x24}
-
-	preMasterSecret, err := PreMasterSecret(publicKey, privateKey, elliptic.X25519)
-	if err != nil {
-		t.Fatal(err)
-	} else if !bytes.Equal(expectedPreMasterSecret, preMasterSecret) {
-		t.Fatalf("PremasterSecret exp: % 02x actual: % 02x", expectedPreMasterSecret, preMasterSecret)
-	}
-}
-
-func TestMasterSecret(t *testing.T) {
-	preMasterSecret := []byte{0xdf, 0x4a, 0x29, 0x1b, 0xaa, 0x1e, 0xb7, 0xcf, 0xa6, 0x93, 0x4b, 0x29, 0xb4, 0x74, 0xba, 0xad, 0x26, 0x97, 0xe2, 0x9f, 0x1f, 0x92, 0x0d, 0xcc, 0x77, 0xc8, 0xa0, 0xa0, 0x88, 0x44, 0x76, 0x24}
-	clientRandom := []byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f}
-	serverRandom := []byte{0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f}
-	expectedMasterSecret := []byte{0x91, 0x6a, 0xbf, 0x9d, 0xa5, 0x59, 0x73, 0xe1, 0x36, 0x14, 0xae, 0x0a, 0x3f, 0x5d, 0x3f, 0x37, 0xb0, 0x23, 0xba, 0x12, 0x9a, 0xee, 0x02, 0xcc, 0x91, 0x34, 0x33, 0x81, 0x27, 0xcd, 0x70, 0x49, 0x78, 0x1c, 0x8e, 0x19, 0xfc, 0x1e, 0xb2, 0xa7, 0x38, 0x7a, 0xc0, 0x6a, 0xe2, 0x37, 0x34, 0x4c}
-
-	masterSecret, err := MasterSecret(preMasterSecret, clientRandom, serverRandom, sha256.New)
-	if err != nil {
-		t.Fatal(err)
-	} else if !bytes.Equal(expectedMasterSecret, masterSecret) {
-		t.Fatalf("masterSecret exp: % 02x actual: % 02x", expectedMasterSecret, masterSecret)
-	}
-}
-
-func TestEncryptionKeys(t *testing.T) {
-	clientRandom := []byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f}
-	serverRandom := []byte{0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f}
-	masterSecret := []byte{0x91, 0x6a, 0xbf, 0x9d, 0xa5, 0x59, 0x73, 0xe1, 0x36, 0x14, 0xae, 0x0a, 0x3f, 0x5d, 0x3f, 0x37, 0xb0, 0x23, 0xba, 0x12, 0x9a, 0xee, 0x02, 0xcc, 0x91, 0x34, 0x33, 0x81, 0x27, 0xcd, 0x70, 0x49, 0x78, 0x1c, 0x8e, 0x19, 0xfc, 0x1e, 0xb2, 0xa7, 0x38, 0x7a, 0xc0, 0x6a, 0xe2, 0x37, 0x34, 0x4c}
-
-	expectedEncryptionKeys := &EncryptionKeys{
-		MasterSecret:   masterSecret,
-		ClientMACKey:   []byte{},
-		ServerMACKey:   []byte{},
-		ClientWriteKey: []byte{0x1b, 0x7d, 0x11, 0x7c, 0x7d, 0x5f, 0x69, 0x0b, 0xc2, 0x63, 0xca, 0xe8, 0xef, 0x60, 0xaf, 0x0f},
-		ServerWriteKey: []byte{0x18, 0x78, 0xac, 0xc2, 0x2a, 0xd8, 0xbd, 0xd8, 0xc6, 0x01, 0xa6, 0x17, 0x12, 0x6f, 0x63, 0x54},
-		ClientWriteIV:  []byte{0x0e, 0xb2, 0x09, 0x06},
-		ServerWriteIV:  []byte{0xf7, 0x81, 0xfa, 0xd2},
-	}
-	keys, err := GenerateEncryptionKeys(masterSecret, clientRandom, serverRandom, 0, 16, 4, sha256.New)
-
-	if err != nil {
-		t.Fatal(err)
-	} else if !reflect.DeepEqual(expectedEncryptionKeys, keys) {
-		t.Fatalf("masterSecret exp: %q actual: %q", expectedEncryptionKeys, keys)
-	}
-}
-
-func TestVerifyData(t *testing.T) {
-	clientHello := []byte{0x01, 0x00, 0x00, 0xa1, 0x03, 0x03, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x00, 0x00, 0x20, 0xcc, 0xa8, 0xcc, 0xa9, 0xc0, 0x2f, 0xc0, 0x30, 0xc0, 0x2b, 0xc0, 0x2c, 0xc0, 0x13, 0xc0, 0x09, 0xc0, 0x14, 0xc0, 0x0a, 0x00, 0x9c, 0x00, 0x9d, 0x00, 0x2f, 0x00, 0x35, 0xc0, 0x12, 0x00, 0x0a, 0x01, 0x00, 0x00, 0x58, 0x00, 0x00, 0x00, 0x18, 0x00, 0x16, 0x00, 0x00, 0x13, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x75, 0x6c, 0x66, 0x68, 0x65, 0x69, 0x6d, 0x2e, 0x6e, 0x65, 0x74, 0x00, 0x05, 0x00, 0x05, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x0a, 0x00, 0x08, 0x00, 0x1d, 0x00, 0x17, 0x00, 0x18, 0x00, 0x19, 0x00, 0x0b, 0x00, 0x02, 0x01, 0x00, 0x00, 0x0d, 0x00, 0x12, 0x00, 0x10, 0x04, 0x01, 0x04, 0x03, 0x05, 0x01, 0x05, 0x03, 0x06, 0x01, 0x06, 0x03, 0x02, 0x01, 0x02, 0x03, 0xff, 0x01, 0x00, 0x01, 0x00, 0x00, 0x12, 0x00, 0x00}
-	serverHello := []byte{0x02, 0x00, 0x00, 0x2d, 0x03, 0x03, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x00, 0xc0, 0x13, 0x00, 0x00, 0x05, 0xff, 0x01, 0x00, 0x01, 0x00}
-	serverCertificate := []byte{0x0b, 0x00, 0x03, 0x2b, 0x00, 0x03, 0x28, 0x00, 0x03, 0x25, 0x30, 0x82, 0x03, 0x21, 0x30, 0x82, 0x02, 0x09, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x08, 0x15, 0x5a, 0x92, 0xad, 0xc2, 0x04, 0x8f, 0x90, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x30, 0x22, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x0a, 0x45, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x20, 0x43, 0x41, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x38, 0x31, 0x30, 0x30, 0x35, 0x30, 0x31, 0x33, 0x38, 0x31, 0x37, 0x5a, 0x17, 0x0d, 0x31, 0x39, 0x31, 0x30, 0x30, 0x35, 0x30, 0x31, 0x33, 0x38, 0x31, 0x37, 0x5a, 0x30, 0x2b, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x1c, 0x30, 0x1a, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x13, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x75, 0x6c, 0x66, 0x68, 0x65, 0x69, 0x6d, 0x2e, 0x6e, 0x65, 0x74, 0x30, 0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xc4, 0x80, 0x36, 0x06, 0xba, 0xe7, 0x47, 0x6b, 0x08, 0x94, 0x04, 0xec, 0xa7, 0xb6, 0x91, 0x04, 0x3f, 0xf7, 0x92, 0xbc, 0x19, 0xee, 0xfb, 0x7d, 0x74, 0xd7, 0xa8, 0x0d, 0x00, 0x1e, 0x7b, 0x4b, 0x3a, 0x4a, 0xe6, 0x0f, 0xe8, 0xc0, 0x71, 0xfc, 0x73, 0xe7, 0x02, 0x4c, 0x0d, 0xbc, 0xf4, 0xbd, 0xd1, 0x1d, 0x39, 0x6b, 0xba, 0x70, 0x46, 0x4a, 0x13, 0xe9, 0x4a, 0xf8, 0x3d, 0xf3, 0xe1, 0x09, 0x59, 0x54, 0x7b, 0xc9, 0x55, 0xfb, 0x41, 0x2d, 0xa3, 0x76, 0x52, 0x11, 0xe1, 0xf3, 0xdc, 0x77, 0x6c, 0xaa, 0x53, 0x37, 0x6e, 0xca, 0x3a, 0xec, 0xbe, 0xc3, 0xaa, 0xb7, 0x3b, 0x31, 0xd5, 0x6c, 0xb6, 0x52, 0x9c, 0x80, 0x98, 0xbc, 0xc9, 0xe0, 0x28, 0x18, 0xe2, 0x0b, 0xf7, 0xf8, 0xa0, 0x3a, 0xfd, 0x17, 0x04, 0x50, 0x9e, 0xce, 0x79, 0xbd, 0x9f, 0x39, 0xf1, 0xea, 0x69, 0xec, 0x47, 0x97, 0x2e, 0x83, 0x0f, 0xb5, 0xca, 0x95, 0xde, 0x95, 0xa1, 0xe6, 0x04, 0x22, 0xd5, 0xee, 0xbe, 0x52, 0x79, 0x54, 0xa1, 0xe7, 0xbf, 0x8a, 0x86, 0xf6, 0x46, 0x6d, 0x0d, 0x9f, 0x16, 0x95, 0x1a, 0x4c, 0xf7, 0xa0, 0x46, 0x92, 0x59, 0x5c, 0x13, 0x52, 0xf2, 0x54, 0x9e, 0x5a, 0xfb, 0x4e, 0xbf, 0xd7, 0x7a, 0x37, 0x95, 0x01, 0x44, 0xe4, 0xc0, 0x26, 0x87, 0x4c, 0x65, 0x3e, 0x40, 0x7d, 0x7d, 0x23, 0x07, 0x44, 0x01, 0xf4, 0x84, 0xff, 0xd0, 0x8f, 0x7a, 0x1f, 0xa0, 0x52, 0x10, 0xd1, 0xf4, 0xf0, 0xd5, 0xce, 0x79, 0x70, 0x29, 0x32, 0xe2, 0xca, 0xbe, 0x70, 0x1f, 0xdf, 0xad, 0x6b, 0x4b, 0xb7, 0x11, 0x01, 0xf4, 0x4b, 0xad, 0x66, 0x6a, 0x11, 0x13, 0x0f, 0xe2, 0xee, 0x82, 0x9e, 0x4d, 0x02, 0x9d, 0xc9, 0x1c, 0xdd, 0x67, 0x16, 0xdb, 0xb9, 0x06, 0x18, 0x86, 0xed, 0xc1, 0xba, 0x94, 0x21, 0x02, 0x03, 0x01, 0x00, 0x01, 0xa3, 0x52, 0x30, 0x50, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04, 0x03, 0x02, 0x05, 0xa0, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x25, 0x04, 0x16, 0x30, 0x14, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, 0x02, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, 0x01, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14, 0x89, 0x4f, 0xde, 0x5b, 0xcc, 0x69, 0xe2, 0x52, 0xcf, 0x3e, 0xa3, 0x00, 0xdf, 0xb1, 0x97, 0xb8, 0x1d, 0xe1, 0xc1, 0x46, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0x59, 0x16, 0x45, 0xa6, 0x9a, 0x2e, 0x37, 0x79, 0xe4, 0xf6, 0xdd, 0x27, 0x1a, 0xba, 0x1c, 0x0b, 0xfd, 0x6c, 0xd7, 0x55, 0x99, 0xb5, 0xe7, 0xc3, 0x6e, 0x53, 0x3e, 0xff, 0x36, 0x59, 0x08, 0x43, 0x24, 0xc9, 0xe7, 0xa5, 0x04, 0x07, 0x9d, 0x39, 0xe0, 0xd4, 0x29, 0x87, 0xff, 0xe3, 0xeb, 0xdd, 0x09, 0xc1, 0xcf, 0x1d, 0x91, 0x44, 0x55, 0x87, 0x0b, 0x57, 0x1d, 0xd1, 0x9b, 0xdf, 0x1d, 0x24, 0xf8, 0xbb, 0x9a, 0x11, 0xfe, 0x80, 0xfd, 0x59, 0x2b, 0xa0, 0x39, 0x8c, 0xde, 0x11, 0xe2, 0x65, 0x1e, 0x61, 0x8c, 0xe5, 0x98, 0xfa, 0x96, 0xe5, 0x37, 0x2e, 0xef, 0x3d, 0x24, 0x8a, 0xfd, 0xe1, 0x74, 0x63, 0xeb, 0xbf, 0xab, 0xb8, 0xe4, 0xd1, 0xab, 0x50, 0x2a, 0x54, 0xec, 0x00, 0x64, 0xe9, 0x2f, 0x78, 0x19, 0x66, 0x0d, 0x3f, 0x27, 0xcf, 0x20, 0x9e, 0x66, 0x7f, 0xce, 0x5a, 0xe2, 0xe4, 0xac, 0x99, 0xc7, 0xc9, 0x38, 0x18, 0xf8, 0xb2, 0x51, 0x07, 0x22, 0xdf, 0xed, 0x97, 0xf3, 0x2e, 0x3e, 0x93, 0x49, 0xd4, 0xc6, 0x6c, 0x9e, 0xa6, 0x39, 0x6d, 0x74, 0x44, 0x62, 0xa0, 0x6b, 0x42, 0xc6, 0xd5, 0xba, 0x68, 0x8e, 0xac, 0x3a, 0x01, 0x7b, 0xdd, 0xfc, 0x8e, 0x2c, 0xfc, 0xad, 0x27, 0xcb, 0x69, 0xd3, 0xcc, 0xdc, 0xa2, 0x80, 0x41, 0x44, 0x65, 0xd3, 0xae, 0x34, 0x8c, 0xe0, 0xf3, 0x4a, 0xb2, 0xfb, 0x9c, 0x61, 0x83, 0x71, 0x31, 0x2b, 0x19, 0x10, 0x41, 0x64, 0x1c, 0x23, 0x7f, 0x11, 0xa5, 0xd6, 0x5c, 0x84, 0x4f, 0x04, 0x04, 0x84, 0x99, 0x38, 0x71, 0x2b, 0x95, 0x9e, 0xd6, 0x85, 0xbc, 0x5c, 0x5d, 0xd6, 0x45, 0xed, 0x19, 0x90, 0x94, 0x73, 0x40, 0x29, 0x26, 0xdc, 0xb4, 0x0e, 0x34, 0x69, 0xa1, 0x59, 0x41, 0xe8, 0xe2, 0xcc, 0xa8, 0x4b, 0xb6, 0x08, 0x46, 0x36, 0xa0}
-	serverKeyExchange := []byte{0x0c, 0x00, 0x01, 0x28, 0x03, 0x00, 0x1d, 0x20, 0x9f, 0xd7, 0xad, 0x6d, 0xcf, 0xf4, 0x29, 0x8d, 0xd3, 0xf9, 0x6d, 0x5b, 0x1b, 0x2a, 0xf9, 0x10, 0xa0, 0x53, 0x5b, 0x14, 0x88, 0xd7, 0xf8, 0xfa, 0xbb, 0x34, 0x9a, 0x98, 0x28, 0x80, 0xb6, 0x15, 0x04, 0x01, 0x01, 0x00, 0x04, 0x02, 0xb6, 0x61, 0xf7, 0xc1, 0x91, 0xee, 0x59, 0xbe, 0x45, 0x37, 0x66, 0x39, 0xbd, 0xc3, 0xd4, 0xbb, 0x81, 0xe1, 0x15, 0xca, 0x73, 0xc8, 0x34, 0x8b, 0x52, 0x5b, 0x0d, 0x23, 0x38, 0xaa, 0x14, 0x46, 0x67, 0xed, 0x94, 0x31, 0x02, 0x14, 0x12, 0xcd, 0x9b, 0x84, 0x4c, 0xba, 0x29, 0x93, 0x4a, 0xaa, 0xcc, 0xe8, 0x73, 0x41, 0x4e, 0xc1, 0x1c, 0xb0, 0x2e, 0x27, 0x2d, 0x0a, 0xd8, 0x1f, 0x76, 0x7d, 0x33, 0x07, 0x67, 0x21, 0xf1, 0x3b, 0xf3, 0x60, 0x20, 0xcf, 0x0b, 0x1f, 0xd0, 0xec, 0xb0, 0x78, 0xde, 0x11, 0x28, 0xbe, 0xba, 0x09, 0x49, 0xeb, 0xec, 0xe1, 0xa1, 0xf9, 0x6e, 0x20, 0x9d, 0xc3, 0x6e, 0x4f, 0xff, 0xd3, 0x6b, 0x67, 0x3a, 0x7d, 0xdc, 0x15, 0x97, 0xad, 0x44, 0x08, 0xe4, 0x85, 0xc4, 0xad, 0xb2, 0xc8, 0x73, 0x84, 0x12, 0x49, 0x37, 0x25, 0x23, 0x80, 0x9e, 0x43, 0x12, 0xd0, 0xc7, 0xb3, 0x52, 0x2e, 0xf9, 0x83, 0xca, 0xc1, 0xe0, 0x39, 0x35, 0xff, 0x13, 0xa8, 0xe9, 0x6b, 0xa6, 0x81, 0xa6, 0x2e, 0x40, 0xd3, 0xe7, 0x0a, 0x7f, 0xf3, 0x58, 0x66, 0xd3, 0xd9, 0x99, 0x3f, 0x9e, 0x26, 0xa6, 0x34, 0xc8, 0x1b, 0x4e, 0x71, 0x38, 0x0f, 0xcd, 0xd6, 0xf4, 0xe8, 0x35, 0xf7, 0x5a, 0x64, 0x09, 0xc7, 0xdc, 0x2c, 0x07, 0x41, 0x0e, 0x6f, 0x87, 0x85, 0x8c, 0x7b, 0x94, 0xc0, 0x1c, 0x2e, 0x32, 0xf2, 0x91, 0x76, 0x9e, 0xac, 0xca, 0x71, 0x64, 0x3b, 0x8b, 0x98, 0xa9, 0x63, 0xdf, 0x0a, 0x32, 0x9b, 0xea, 0x4e, 0xd6, 0x39, 0x7e, 0x8c, 0xd0, 0x1a, 0x11, 0x0a, 0xb3, 0x61, 0xac, 0x5b, 0xad, 0x1c, 0xcd, 0x84, 0x0a, 0x6c, 0x8a, 0x6e, 0xaa, 0x00, 0x1a, 0x9d, 0x7d, 0x87, 0xdc, 0x33, 0x18, 0x64, 0x35, 0x71, 0x22, 0x6c, 0x4d, 0xd2, 0xc2, 0xac, 0x41, 0xfb}
-	serverHelloDone := []byte{0x0e, 0x00, 0x00, 0x00}
-	clientKeyExchange := []byte{0x10, 0x00, 0x00, 0x21, 0x20, 0x35, 0x80, 0x72, 0xd6, 0x36, 0x58, 0x80, 0xd1, 0xae, 0xea, 0x32, 0x9a, 0xdf, 0x91, 0x21, 0x38, 0x38, 0x51, 0xed, 0x21, 0xa2, 0x8e, 0x3b, 0x75, 0xe9, 0x65, 0xd0, 0xd2, 0xcd, 0x16, 0x62, 0x54}
-
-	finalMsg := append(append(append(append(append(clientHello, serverHello...), serverCertificate...), serverKeyExchange...), serverHelloDone...), clientKeyExchange...)
-	masterSecret := []byte{0x91, 0x6a, 0xbf, 0x9d, 0xa5, 0x59, 0x73, 0xe1, 0x36, 0x14, 0xae, 0x0a, 0x3f, 0x5d, 0x3f, 0x37, 0xb0, 0x23, 0xba, 0x12, 0x9a, 0xee, 0x02, 0xcc, 0x91, 0x34, 0x33, 0x81, 0x27, 0xcd, 0x70, 0x49, 0x78, 0x1c, 0x8e, 0x19, 0xfc, 0x1e, 0xb2, 0xa7, 0x38, 0x7a, 0xc0, 0x6a, 0xe2, 0x37, 0x34, 0x4c}
-
-	expectedVerifyData := []byte{0xcf, 0x91, 0x96, 0x26, 0xf1, 0x36, 0x0c, 0x53, 0x6a, 0xaa, 0xd7, 0x3a}
-	verifyData, err := VerifyDataClient(masterSecret, finalMsg, sha256.New)
-	if err != nil {
-		t.Fatal(err)
-	} else if !bytes.Equal(expectedVerifyData, verifyData) {
-		t.Fatalf("verifyData exp: %q actual: %q", expectedVerifyData, verifyData)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/selfsign/selfsign.go b/anylink/dtls-2.0.9/pkg/crypto/selfsign/selfsign.go
deleted file mode 100644
index f8c814c..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/selfsign/selfsign.go
+++ /dev/null
@@ -1,103 +0,0 @@
-// Package selfsign is a test helper that generates self signed certificate.
-package selfsign
-
-import (
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/ed25519"
-	"crypto/elliptic"
-	"crypto/rand"
-	"crypto/tls"
-	"crypto/x509"
-	"crypto/x509/pkix"
-	"encoding/hex"
-	"errors"
-	"math/big"
-	"time"
-)
-
-var errInvalidPrivateKey = errors.New("selfsign: invalid private key type")
-
-// GenerateSelfSigned creates a self-signed certificate
-func GenerateSelfSigned() (tls.Certificate, error) {
-	priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		return tls.Certificate{}, err
-	}
-
-	return SelfSign(priv)
-}
-
-// GenerateSelfSignedWithDNS creates a self-signed certificate
-func GenerateSelfSignedWithDNS(cn string, sans ...string) (tls.Certificate, error) {
-	priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		return tls.Certificate{}, err
-	}
-
-	return WithDNS(priv, cn, sans...)
-}
-
-// SelfSign creates a self-signed certificate from a elliptic curve key
-func SelfSign(key crypto.PrivateKey) (tls.Certificate, error) {
-	return WithDNS(key, hex.EncodeToString(make([]byte, 16)))
-}
-
-// WithDNS creates a self-signed certificate from a elliptic curve key
-func WithDNS(key crypto.PrivateKey, cn string, sans ...string) (tls.Certificate, error) {
-	var (
-		pubKey    crypto.PublicKey
-		maxBigInt = new(big.Int) // Max random value, a 130-bits integer, i.e 2^130 - 1
-	)
-
-	switch k := key.(type) {
-	case ed25519.PrivateKey:
-		pubKey = k.Public()
-	case *ecdsa.PrivateKey:
-		pubKey = k.Public()
-	default:
-		return tls.Certificate{}, errInvalidPrivateKey
-	}
-
-	/* #nosec */
-	maxBigInt.Exp(big.NewInt(2), big.NewInt(130), nil).Sub(maxBigInt, big.NewInt(1))
-	/* #nosec */
-	serialNumber, err := rand.Int(rand.Reader, maxBigInt)
-	if err != nil {
-		return tls.Certificate{}, err
-	}
-
-	names := []string{cn}
-	names = append(names, sans...)
-
-	template := x509.Certificate{
-		Subject: pkix.Name{
-			// TODO anylink
-			Organization:       []string{cn},
-			OrganizationalUnit: names,
-		},
-		ExtKeyUsage: []x509.ExtKeyUsage{
-			x509.ExtKeyUsageClientAuth,
-			x509.ExtKeyUsageServerAuth,
-		},
-		BasicConstraintsValid: true,
-		NotBefore:             time.Now(),
-		KeyUsage:              x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature | x509.KeyUsageCertSign,
-		NotAfter:              time.Now().AddDate(0, 1, 0),
-		SerialNumber:          serialNumber,
-		Version:               2,
-		IsCA:                  true,
-		DNSNames:              names,
-	}
-
-	raw, err := x509.CreateCertificate(rand.Reader, &template, &template, pubKey, key)
-	if err != nil {
-		return tls.Certificate{}, err
-	}
-
-	return tls.Certificate{
-		Certificate: [][]byte{raw},
-		PrivateKey:  key,
-		Leaf:        &template,
-	}, nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/signature/signature.go b/anylink/dtls-2.0.9/pkg/crypto/signature/signature.go
deleted file mode 100644
index d9150eb..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/signature/signature.go
+++ /dev/null
@@ -1,24 +0,0 @@
-// Package signature provides our implemented Signature Algorithms
-package signature
-
-// Algorithm as defined in TLS 1.2
-// https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-16
-type Algorithm uint16
-
-// SignatureAlgorithm enums
-const (
-	Anonymous Algorithm = 0
-	RSA       Algorithm = 1
-	ECDSA     Algorithm = 3
-	Ed25519   Algorithm = 7
-)
-
-// Algorithms returns all implemented Signature Algorithms
-func Algorithms() map[Algorithm]struct{} {
-	return map[Algorithm]struct{}{
-		Anonymous: {},
-		RSA:       {},
-		ECDSA:     {},
-		Ed25519:   {},
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/signaturehash/errors.go b/anylink/dtls-2.0.9/pkg/crypto/signaturehash/errors.go
deleted file mode 100644
index 9d9d3b3..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/signaturehash/errors.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package signaturehash
-
-import "errors"
-
-var (
-	errNoAvailableSignatureSchemes = errors.New("connection can not be created, no SignatureScheme satisfy this Config")
-	errInvalidSignatureAlgorithm   = errors.New("invalid signature algorithm")
-	errInvalidHashAlgorithm        = errors.New("invalid hash algorithm")
-)
diff --git a/anylink/dtls-2.0.9/pkg/crypto/signaturehash/signaturehash.go b/anylink/dtls-2.0.9/pkg/crypto/signaturehash/signaturehash.go
deleted file mode 100644
index f2017bc..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/signaturehash/signaturehash.go
+++ /dev/null
@@ -1,93 +0,0 @@
-// Package signaturehash provides the SignatureHashAlgorithm as defined in TLS 1.2
-package signaturehash
-
-import (
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/ed25519"
-	"crypto/rsa"
-	"crypto/tls"
-
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-	"github.com/pion/dtls/v2/pkg/crypto/signature"
-	"golang.org/x/xerrors"
-)
-
-// Algorithm is a signature/hash algorithm pairs which may be used in
-// digital signatures.
-//
-// https://tools.ietf.org/html/rfc5246#section-7.4.1.4.1
-type Algorithm struct {
-	Hash      hash.Algorithm
-	Signature signature.Algorithm
-}
-
-// Algorithms are all the know SignatureHash Algorithms
-func Algorithms() []Algorithm {
-	return []Algorithm{
-		{hash.SHA256, signature.ECDSA},
-		{hash.SHA384, signature.ECDSA},
-		{hash.SHA512, signature.ECDSA},
-		{hash.SHA256, signature.RSA},
-		{hash.SHA384, signature.RSA},
-		{hash.SHA512, signature.RSA},
-		{hash.Ed25519, signature.Ed25519},
-	}
-}
-
-// SelectSignatureScheme returns most preferred and compatible scheme.
-func SelectSignatureScheme(sigs []Algorithm, privateKey crypto.PrivateKey) (Algorithm, error) {
-	for _, ss := range sigs {
-		if ss.isCompatible(privateKey) {
-			return ss, nil
-		}
-	}
-	return Algorithm{}, errNoAvailableSignatureSchemes
-}
-
-// isCompatible checks that given private key is compatible with the signature scheme.
-func (a *Algorithm) isCompatible(privateKey crypto.PrivateKey) bool {
-	switch privateKey.(type) {
-	case ed25519.PrivateKey:
-		return a.Signature == signature.Ed25519
-	case *ecdsa.PrivateKey:
-		return a.Signature == signature.ECDSA
-	case *rsa.PrivateKey:
-		return a.Signature == signature.RSA
-	default:
-		return false
-	}
-}
-
-// ParseSignatureSchemes translates []tls.SignatureScheme to []signatureHashAlgorithm.
-// It returns default signature scheme list if no SignatureScheme is passed.
-func ParseSignatureSchemes(sigs []tls.SignatureScheme, insecureHashes bool) ([]Algorithm, error) {
-	if len(sigs) == 0 {
-		return Algorithms(), nil
-	}
-	out := []Algorithm{}
-	for _, ss := range sigs {
-		sig := signature.Algorithm(ss & 0xFF)
-		if _, ok := signature.Algorithms()[sig]; !ok {
-			return nil,
-				xerrors.Errorf("SignatureScheme %04x: %w", ss, errInvalidSignatureAlgorithm)
-		}
-		h := hash.Algorithm(ss >> 8)
-		if _, ok := hash.Algorithms()[h]; !ok || (ok && h == hash.None) {
-			return nil, xerrors.Errorf("SignatureScheme %04x: %w", ss, errInvalidHashAlgorithm)
-		}
-		if h.Insecure() && !insecureHashes {
-			continue
-		}
-		out = append(out, Algorithm{
-			Hash:      h,
-			Signature: sig,
-		})
-	}
-
-	if len(out) == 0 {
-		return nil, errNoAvailableSignatureSchemes
-	}
-
-	return out, nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/signaturehash/signaturehash_go113_test.go b/anylink/dtls-2.0.9/pkg/crypto/signaturehash/signaturehash_go113_test.go
deleted file mode 100644
index 45230e3..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/signaturehash/signaturehash_go113_test.go
+++ /dev/null
@@ -1,46 +0,0 @@
-// +build go1.13
-
-package signaturehash
-
-import (
-	"crypto/tls"
-	"reflect"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-	"github.com/pion/dtls/v2/pkg/crypto/signature"
-	"golang.org/x/xerrors"
-)
-
-func TestParseSignatureSchemes_Ed25519(t *testing.T) {
-	cases := map[string]struct {
-		input          []tls.SignatureScheme
-		expected       []Algorithm
-		err            error
-		insecureHashes bool
-	}{
-		"Translate": {
-			input: []tls.SignatureScheme{
-				tls.Ed25519,
-			},
-			expected: []Algorithm{
-				{hash.Ed25519, signature.Ed25519},
-			},
-			err:            nil,
-			insecureHashes: false,
-		},
-	}
-
-	for name, testCase := range cases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			output, err := ParseSignatureSchemes(testCase.input, testCase.insecureHashes)
-			if testCase.err != nil && !xerrors.Is(err, testCase.err) {
-				t.Fatalf("Expected error: %v, got: %v", testCase.err, err)
-			}
-			if !reflect.DeepEqual(testCase.expected, output) {
-				t.Errorf("Expected signatureHashAlgorithm:\n%+v\ngot:\n%+v", testCase.expected, output)
-			}
-		})
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/crypto/signaturehash/signaturehash_test.go b/anylink/dtls-2.0.9/pkg/crypto/signaturehash/signaturehash_test.go
deleted file mode 100644
index ff01add..0000000
--- a/anylink/dtls-2.0.9/pkg/crypto/signaturehash/signaturehash_test.go
+++ /dev/null
@@ -1,102 +0,0 @@
-package signaturehash
-
-import (
-	"crypto/tls"
-	"reflect"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-	"github.com/pion/dtls/v2/pkg/crypto/signature"
-	"golang.org/x/xerrors"
-)
-
-func TestParseSignatureSchemes(t *testing.T) {
-	cases := map[string]struct {
-		input          []tls.SignatureScheme
-		expected       []Algorithm
-		err            error
-		insecureHashes bool
-	}{
-		"Translate": {
-			input: []tls.SignatureScheme{
-				tls.ECDSAWithP256AndSHA256,
-				tls.ECDSAWithP384AndSHA384,
-				tls.ECDSAWithP521AndSHA512,
-				tls.PKCS1WithSHA256,
-				tls.PKCS1WithSHA384,
-				tls.PKCS1WithSHA512,
-			},
-			expected: []Algorithm{
-				{hash.SHA256, signature.ECDSA},
-				{hash.SHA384, signature.ECDSA},
-				{hash.SHA512, signature.ECDSA},
-				{hash.SHA256, signature.RSA},
-				{hash.SHA384, signature.RSA},
-				{hash.SHA512, signature.RSA},
-			},
-			insecureHashes: false,
-			err:            nil,
-		},
-		"InvalidSignatureAlgorithm": {
-			input: []tls.SignatureScheme{
-				tls.ECDSAWithP256AndSHA256, // Valid
-				0x04FF,                     // Invalid: unknown signature with SHA-256
-			},
-			expected:       nil,
-			insecureHashes: false,
-			err:            errInvalidSignatureAlgorithm,
-		},
-		"InvalidHashAlgorithm": {
-			input: []tls.SignatureScheme{
-				tls.ECDSAWithP256AndSHA256, // Valid
-				0x0003,                     // Invalid: ECDSA with None
-			},
-			expected:       nil,
-			insecureHashes: false,
-			err:            errInvalidHashAlgorithm,
-		},
-		"InsecureHashAlgorithmDenied": {
-			input: []tls.SignatureScheme{
-				tls.ECDSAWithP256AndSHA256, // Valid
-				tls.ECDSAWithSHA1,          // Insecure
-			},
-			expected: []Algorithm{
-				{hash.SHA256, signature.ECDSA},
-			},
-			insecureHashes: false,
-			err:            nil,
-		},
-		"InsecureHashAlgorithmAllowed": {
-			input: []tls.SignatureScheme{
-				tls.ECDSAWithP256AndSHA256, // Valid
-				tls.ECDSAWithSHA1,          // Insecure
-			},
-			expected: []Algorithm{
-				{hash.SHA256, signature.ECDSA},
-				{hash.SHA1, signature.ECDSA},
-			},
-			insecureHashes: true,
-			err:            nil,
-		},
-		"OnlyInsecureHashAlgorithm": {
-			input: []tls.SignatureScheme{
-				tls.ECDSAWithSHA1, // Insecure
-			},
-			insecureHashes: false,
-			err:            errNoAvailableSignatureSchemes,
-		},
-	}
-
-	for name, testCase := range cases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			output, err := ParseSignatureSchemes(testCase.input, testCase.insecureHashes)
-			if testCase.err != nil && !xerrors.Is(err, testCase.err) {
-				t.Fatalf("Expected error: %v, got: %v", testCase.err, err)
-			}
-			if !reflect.DeepEqual(testCase.expected, output) {
-				t.Errorf("Expected signatureHashAlgorithm:\n%+v\ngot:\n%+v", testCase.expected, output)
-			}
-		})
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/alert/alert.go b/anylink/dtls-2.0.9/pkg/protocol/alert/alert.go
deleted file mode 100644
index 9eb2e6a..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/alert/alert.go
+++ /dev/null
@@ -1,160 +0,0 @@
-// Package alert implements TLS alert protocol https://tools.ietf.org/html/rfc5246#section-7.2
-package alert
-
-import (
-	"errors"
-	"fmt"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-)
-
-var errBufferTooSmall = &protocol.TemporaryError{Err: errors.New("buffer is too small")} //nolint:goerr113
-
-// Level is the level of the TLS Alert
-type Level byte
-
-// Level enums
-const (
-	Warning Level = 1
-	Fatal   Level = 2
-)
-
-func (l Level) String() string {
-	switch l {
-	case Warning:
-		return "Warning"
-	case Fatal:
-		return "Fatal"
-	default:
-		return "Invalid alert level"
-	}
-}
-
-// Description is the extended info of the TLS Alert
-type Description byte
-
-// Description enums
-const (
-	CloseNotify            Description = 0
-	UnexpectedMessage      Description = 10
-	BadRecordMac           Description = 20
-	DecryptionFailed       Description = 21
-	RecordOverflow         Description = 22
-	DecompressionFailure   Description = 30
-	HandshakeFailure       Description = 40
-	NoCertificate          Description = 41
-	BadCertificate         Description = 42
-	UnsupportedCertificate Description = 43
-	CertificateRevoked     Description = 44
-	CertificateExpired     Description = 45
-	CertificateUnknown     Description = 46
-	IllegalParameter       Description = 47
-	UnknownCA              Description = 48
-	AccessDenied           Description = 49
-	DecodeError            Description = 50
-	DecryptError           Description = 51
-	ExportRestriction      Description = 60
-	ProtocolVersion        Description = 70
-	InsufficientSecurity   Description = 71
-	InternalError          Description = 80
-	UserCanceled           Description = 90
-	NoRenegotiation        Description = 100
-	UnsupportedExtension   Description = 110
-)
-
-func (d Description) String() string {
-	switch d {
-	case CloseNotify:
-		return "CloseNotify"
-	case UnexpectedMessage:
-		return "UnexpectedMessage"
-	case BadRecordMac:
-		return "BadRecordMac"
-	case DecryptionFailed:
-		return "DecryptionFailed"
-	case RecordOverflow:
-		return "RecordOverflow"
-	case DecompressionFailure:
-		return "DecompressionFailure"
-	case HandshakeFailure:
-		return "HandshakeFailure"
-	case NoCertificate:
-		return "NoCertificate"
-	case BadCertificate:
-		return "BadCertificate"
-	case UnsupportedCertificate:
-		return "UnsupportedCertificate"
-	case CertificateRevoked:
-		return "CertificateRevoked"
-	case CertificateExpired:
-		return "CertificateExpired"
-	case CertificateUnknown:
-		return "CertificateUnknown"
-	case IllegalParameter:
-		return "IllegalParameter"
-	case UnknownCA:
-		return "UnknownCA"
-	case AccessDenied:
-		return "AccessDenied"
-	case DecodeError:
-		return "DecodeError"
-	case DecryptError:
-		return "DecryptError"
-	case ExportRestriction:
-		return "ExportRestriction"
-	case ProtocolVersion:
-		return "ProtocolVersion"
-	case InsufficientSecurity:
-		return "InsufficientSecurity"
-	case InternalError:
-		return "InternalError"
-	case UserCanceled:
-		return "UserCanceled"
-	case NoRenegotiation:
-		return "NoRenegotiation"
-	case UnsupportedExtension:
-		return "UnsupportedExtension"
-	default:
-		return "Invalid alert description"
-	}
-}
-
-// Alert is one of the content types supported by the TLS record layer.
-// Alert messages convey the severity of the message
-// (warning or fatal) and a description of the alert.  Alert messages
-// with a level of fatal result in the immediate termination of the
-// connection.  In this case, other connections corresponding to the
-// session may continue, but the session identifier MUST be invalidated,
-// preventing the failed session from being used to establish new
-// connections.  Like other messages, alert messages are encrypted and
-// compressed, as specified by the current connection state.
-// https://tools.ietf.org/html/rfc5246#section-7.2
-type Alert struct {
-	Level       Level
-	Description Description
-}
-
-// ContentType returns the ContentType of this Content
-func (a Alert) ContentType() protocol.ContentType {
-	return protocol.ContentTypeAlert
-}
-
-// Marshal returns the encoded alert
-func (a *Alert) Marshal() ([]byte, error) {
-	return []byte{byte(a.Level), byte(a.Description)}, nil
-}
-
-// Unmarshal populates the alert from binary data
-func (a *Alert) Unmarshal(data []byte) error {
-	if len(data) != 2 {
-		return errBufferTooSmall
-	}
-
-	a.Level = Level(data[0])
-	a.Description = Description(data[1])
-	return nil
-}
-
-func (a *Alert) String() string {
-	return fmt.Sprintf("Alert %s: %s", a.Level, a.Description)
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/alert/alert_test.go b/anylink/dtls-2.0.9/pkg/protocol/alert/alert_test.go
deleted file mode 100644
index d0a4c70..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/alert/alert_test.go
+++ /dev/null
@@ -1,49 +0,0 @@
-package alert
-
-import (
-	"errors"
-	"reflect"
-	"testing"
-)
-
-func TestAlert(t *testing.T) {
-	for _, test := range []struct {
-		Name               string
-		Data               []byte
-		Want               *Alert
-		WantUnmarshalError error
-	}{
-		{
-			Name: "Valid Alert",
-			Data: []byte{0x02, 0x0A},
-			Want: &Alert{
-				Level:       Fatal,
-				Description: UnexpectedMessage,
-			},
-		},
-		{
-			Name:               "Invalid alert length",
-			Data:               []byte{0x00},
-			Want:               &Alert{},
-			WantUnmarshalError: errBufferTooSmall,
-		},
-	} {
-		a := &Alert{}
-		if err := a.Unmarshal(test.Data); !errors.Is(err, test.WantUnmarshalError) {
-			t.Errorf("Unexpected Error %v: exp: %v got: %v", test.Name, test.WantUnmarshalError, err)
-		} else if !reflect.DeepEqual(test.Want, a) {
-			t.Errorf("%q alert.unmarshal: got %v, want %v", test.Name, a, test.Want)
-		}
-
-		if test.WantUnmarshalError != nil {
-			return
-		}
-
-		data, marshalErr := a.Marshal()
-		if marshalErr != nil {
-			t.Errorf("Unexpected Error %v: got: %v", test.Name, marshalErr)
-		} else if !reflect.DeepEqual(test.Data, data) {
-			t.Errorf("%q alert.marshal: got % 02x, want % 02x", test.Name, data, test.Data)
-		}
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/application_data.go b/anylink/dtls-2.0.9/pkg/protocol/application_data.go
deleted file mode 100644
index e5fd6f5..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/application_data.go
+++ /dev/null
@@ -1,26 +0,0 @@
-package protocol
-
-// ApplicationData messages are carried by the record layer and are
-// fragmented, compressed, and encrypted based on the current connection
-// state.  The messages are treated as transparent data to the record
-// layer.
-// https://tools.ietf.org/html/rfc5246#section-10
-type ApplicationData struct {
-	Data []byte
-}
-
-// ContentType returns the ContentType of this content
-func (a ApplicationData) ContentType() ContentType {
-	return ContentTypeApplicationData
-}
-
-// Marshal encodes the ApplicationData to binary
-func (a *ApplicationData) Marshal() ([]byte, error) {
-	return append([]byte{}, a.Data...), nil
-}
-
-// Unmarshal populates the ApplicationData from binary
-func (a *ApplicationData) Unmarshal(data []byte) error {
-	a.Data = append([]byte{}, data...)
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/change_cipher_spec.go b/anylink/dtls-2.0.9/pkg/protocol/change_cipher_spec.go
deleted file mode 100644
index 67b0052..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/change_cipher_spec.go
+++ /dev/null
@@ -1,28 +0,0 @@
-package protocol
-
-// ChangeCipherSpec protocol exists to signal transitions in
-// ciphering strategies.  The protocol consists of a single message,
-// which is encrypted and compressed under the current (not the pending)
-// connection state.  The message consists of a single byte of value 1.
-// https://tools.ietf.org/html/rfc5246#section-7.1
-type ChangeCipherSpec struct {
-}
-
-// ContentType returns the ContentType of this content
-func (c ChangeCipherSpec) ContentType() ContentType {
-	return ContentTypeChangeCipherSpec
-}
-
-// Marshal encodes the ChangeCipherSpec to binary
-func (c *ChangeCipherSpec) Marshal() ([]byte, error) {
-	return []byte{0x01}, nil
-}
-
-// Unmarshal populates the ChangeCipherSpec from binary
-func (c *ChangeCipherSpec) Unmarshal(data []byte) error {
-	if len(data) == 1 && data[0] == 0x01 {
-		return nil
-	}
-
-	return errInvalidCipherSpec
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/change_cipher_spec_test.go b/anylink/dtls-2.0.9/pkg/protocol/change_cipher_spec_test.go
deleted file mode 100644
index 9c862a0..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/change_cipher_spec_test.go
+++ /dev/null
@@ -1,31 +0,0 @@
-package protocol
-
-import (
-	"errors"
-	"reflect"
-	"testing"
-)
-
-func TestChangeCipherSpecRoundTrip(t *testing.T) {
-	c := ChangeCipherSpec{}
-	raw, err := c.Marshal()
-	if err != nil {
-		t.Error(err)
-	}
-
-	var cNew ChangeCipherSpec
-	if err := cNew.Unmarshal(raw); err != nil {
-		t.Error(err)
-	}
-
-	if !reflect.DeepEqual(c, cNew) {
-		t.Errorf("ChangeCipherSpec round trip: got %#v, want %#v", cNew, c)
-	}
-}
-
-func TestChangeCipherSpecInvalid(t *testing.T) {
-	c := ChangeCipherSpec{}
-	if err := c.Unmarshal([]byte{0x00}); !errors.Is(err, errInvalidCipherSpec) {
-		t.Errorf("ChangeCipherSpec invalid assert: got %#v, want %#v", err, errInvalidCipherSpec)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/compression_method.go b/anylink/dtls-2.0.9/pkg/protocol/compression_method.go
deleted file mode 100644
index 678e816..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/compression_method.go
+++ /dev/null
@@ -1,48 +0,0 @@
-package protocol
-
-// CompressionMethodID is the ID for a CompressionMethod
-type CompressionMethodID byte
-
-const (
-	compressionMethodNull CompressionMethodID = 0
-)
-
-// CompressionMethod represents a TLS Compression Method
-type CompressionMethod struct {
-	ID CompressionMethodID
-}
-
-// CompressionMethods returns all supported CompressionMethods
-func CompressionMethods() map[CompressionMethodID]*CompressionMethod {
-	return map[CompressionMethodID]*CompressionMethod{
-		compressionMethodNull: {ID: compressionMethodNull},
-	}
-}
-
-// DecodeCompressionMethods the given compression methods
-func DecodeCompressionMethods(buf []byte) ([]*CompressionMethod, error) {
-	if len(buf) < 1 {
-		return nil, errBufferTooSmall
-	}
-	compressionMethodsCount := int(buf[0])
-	c := []*CompressionMethod{}
-	for i := 0; i < compressionMethodsCount; i++ {
-		if len(buf) <= i+1 {
-			return nil, errBufferTooSmall
-		}
-		id := CompressionMethodID(buf[i+1])
-		if compressionMethod, ok := CompressionMethods()[id]; ok {
-			c = append(c, compressionMethod)
-		}
-	}
-	return c, nil
-}
-
-// EncodeCompressionMethods the given compression methods
-func EncodeCompressionMethods(c []*CompressionMethod) []byte {
-	out := []byte{byte(len(c))}
-	for i := len(c); i > 0; i-- {
-		out = append(out, byte(c[i-1].ID))
-	}
-	return out
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/compression_method_test.go b/anylink/dtls-2.0.9/pkg/protocol/compression_method_test.go
deleted file mode 100644
index 5121dfc..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/compression_method_test.go
+++ /dev/null
@@ -1,23 +0,0 @@
-package protocol
-
-import (
-	"errors"
-	"testing"
-)
-
-func TestDecodeCompressionMethods(t *testing.T) {
-	testCases := []struct {
-		buf    []byte
-		result []*CompressionMethod
-		err    error
-	}{
-		{[]byte{}, nil, errBufferTooSmall},
-	}
-
-	for _, testCase := range testCases {
-		_, err := DecodeCompressionMethods(testCase.buf)
-		if !errors.Is(err, testCase.err) {
-			t.Fatal("Unexpected error", err)
-		}
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/content.go b/anylink/dtls-2.0.9/pkg/protocol/content.go
deleted file mode 100644
index 47e5c96..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/content.go
+++ /dev/null
@@ -1,21 +0,0 @@
-package protocol
-
-// ContentType represents the IANA Registered ContentTypes
-//
-// https://tools.ietf.org/html/rfc4346#section-6.2.1
-type ContentType uint8
-
-// ContentType enums
-const (
-	ContentTypeChangeCipherSpec ContentType = 20
-	ContentTypeAlert            ContentType = 21
-	ContentTypeHandshake        ContentType = 22
-	ContentTypeApplicationData  ContentType = 23
-)
-
-// Content is the top level distinguisher for a DTLS Datagram
-type Content interface {
-	ContentType() ContentType
-	Marshal() ([]byte, error)
-	Unmarshal(data []byte) error
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/errors.go b/anylink/dtls-2.0.9/pkg/protocol/errors.go
deleted file mode 100644
index e52014a..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/errors.go
+++ /dev/null
@@ -1,104 +0,0 @@
-package protocol
-
-import (
-	"errors"
-	"fmt"
-	"net"
-)
-
-var (
-	errBufferTooSmall    = &TemporaryError{Err: errors.New("buffer is too small")} //nolint:goerr113
-	errInvalidCipherSpec = &FatalError{Err: errors.New("cipher spec invalid")}     //nolint:goerr113
-)
-
-// FatalError indicates that the DTLS connection is no longer available.
-// It is mainly caused by wrong configuration of server or client.
-type FatalError struct {
-	Err error
-}
-
-// InternalError indicates and internal error caused by the implementation, and the DTLS connection is no longer available.
-// It is mainly caused by bugs or tried to use unimplemented features.
-type InternalError struct {
-	Err error
-}
-
-// TemporaryError indicates that the DTLS connection is still available, but the request was failed temporary.
-type TemporaryError struct {
-	Err error
-}
-
-// TimeoutError indicates that the request was timed out.
-type TimeoutError struct {
-	Err error
-}
-
-// HandshakeError indicates that the handshake failed.
-type HandshakeError struct {
-	Err error
-}
-
-// Timeout implements net.Error.Timeout()
-func (*FatalError) Timeout() bool { return false }
-
-// Temporary implements net.Error.Temporary()
-func (*FatalError) Temporary() bool { return false }
-
-// Unwrap implements Go1.13 error unwrapper.
-func (e *FatalError) Unwrap() error { return e.Err }
-
-func (e *FatalError) Error() string { return fmt.Sprintf("dtls fatal: %v", e.Err) }
-
-// Timeout implements net.Error.Timeout()
-func (*InternalError) Timeout() bool { return false }
-
-// Temporary implements net.Error.Temporary()
-func (*InternalError) Temporary() bool { return false }
-
-// Unwrap implements Go1.13 error unwrapper.
-func (e *InternalError) Unwrap() error { return e.Err }
-
-func (e *InternalError) Error() string { return fmt.Sprintf("dtls internal: %v", e.Err) }
-
-// Timeout implements net.Error.Timeout()
-func (*TemporaryError) Timeout() bool { return false }
-
-// Temporary implements net.Error.Temporary()
-func (*TemporaryError) Temporary() bool { return true }
-
-// Unwrap implements Go1.13 error unwrapper.
-func (e *TemporaryError) Unwrap() error { return e.Err }
-
-func (e *TemporaryError) Error() string { return fmt.Sprintf("dtls temporary: %v", e.Err) }
-
-// Timeout implements net.Error.Timeout()
-func (*TimeoutError) Timeout() bool { return true }
-
-// Temporary implements net.Error.Temporary()
-func (*TimeoutError) Temporary() bool { return true }
-
-// Unwrap implements Go1.13 error unwrapper.
-func (e *TimeoutError) Unwrap() error { return e.Err }
-
-func (e *TimeoutError) Error() string { return fmt.Sprintf("dtls timeout: %v", e.Err) }
-
-// Timeout implements net.Error.Timeout()
-func (e *HandshakeError) Timeout() bool {
-	if netErr, ok := e.Err.(net.Error); ok {
-		return netErr.Timeout()
-	}
-	return false
-}
-
-// Temporary implements net.Error.Temporary()
-func (e *HandshakeError) Temporary() bool {
-	if netErr, ok := e.Err.(net.Error); ok {
-		return netErr.Temporary()
-	}
-	return false
-}
-
-// Unwrap implements Go1.13 error unwrapper.
-func (e *HandshakeError) Unwrap() error { return e.Err }
-
-func (e *HandshakeError) Error() string { return fmt.Sprintf("handshake error: %v", e.Err) }
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/errors.go b/anylink/dtls-2.0.9/pkg/protocol/extension/errors.go
deleted file mode 100644
index 23ed9b2..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/errors.go
+++ /dev/null
@@ -1,14 +0,0 @@
-package extension
-
-import (
-	"errors"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-)
-
-var (
-	errBufferTooSmall       = &protocol.TemporaryError{Err: errors.New("buffer is too small")}                         //nolint:goerr113
-	errInvalidExtensionType = &protocol.FatalError{Err: errors.New("invalid extension type")}                          //nolint:goerr113
-	errInvalidSNIFormat     = &protocol.FatalError{Err: errors.New("invalid server name format")}                      //nolint:goerr113
-	errLengthMismatch       = &protocol.InternalError{Err: errors.New("data length and declared length do not match")} //nolint:goerr113
-)
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/extension.go b/anylink/dtls-2.0.9/pkg/protocol/extension/extension.go
deleted file mode 100644
index 39b1fc8..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/extension.go
+++ /dev/null
@@ -1,96 +0,0 @@
-// Package extension implements the extension values in the ClientHello/ServerHello
-package extension
-
-import "encoding/binary"
-
-// TypeValue is the 2 byte value for a TLS Extension as registered in the IANA
-//
-// https://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml
-type TypeValue uint16
-
-// TypeValue constants
-const (
-	ServerNameTypeValue                   TypeValue = 0
-	SupportedEllipticCurvesTypeValue      TypeValue = 10
-	SupportedPointFormatsTypeValue        TypeValue = 11
-	SupportedSignatureAlgorithmsTypeValue TypeValue = 13
-	UseSRTPTypeValue                      TypeValue = 14
-	UseExtendedMasterSecretTypeValue      TypeValue = 23
-	RenegotiationInfoTypeValue            TypeValue = 65281
-)
-
-// Extension represents a single TLS extension
-type Extension interface {
-	Marshal() ([]byte, error)
-	Unmarshal(data []byte) error
-	TypeValue() TypeValue
-}
-
-// Unmarshal many extensions at once
-func Unmarshal(buf []byte) ([]Extension, error) {
-	switch {
-	case len(buf) == 0:
-		return []Extension{}, nil
-	case len(buf) < 2:
-		return nil, errBufferTooSmall
-	}
-
-	declaredLen := binary.BigEndian.Uint16(buf)
-	if len(buf)-2 != int(declaredLen) {
-		return nil, errLengthMismatch
-	}
-
-	extensions := []Extension{}
-	unmarshalAndAppend := func(data []byte, e Extension) error {
-		err := e.Unmarshal(data)
-		if err != nil {
-			return err
-		}
-		extensions = append(extensions, e)
-		return nil
-	}
-
-	for offset := 2; offset < len(buf); {
-		if len(buf) < (offset + 2) {
-			return nil, errBufferTooSmall
-		}
-		var err error
-		switch TypeValue(binary.BigEndian.Uint16(buf[offset:])) {
-		case ServerNameTypeValue:
-			err = unmarshalAndAppend(buf[offset:], &ServerName{})
-		case SupportedEllipticCurvesTypeValue:
-			err = unmarshalAndAppend(buf[offset:], &SupportedEllipticCurves{})
-		case UseSRTPTypeValue:
-			err = unmarshalAndAppend(buf[offset:], &UseSRTP{})
-		case UseExtendedMasterSecretTypeValue:
-			err = unmarshalAndAppend(buf[offset:], &UseExtendedMasterSecret{})
-		case RenegotiationInfoTypeValue:
-			err = unmarshalAndAppend(buf[offset:], &RenegotiationInfo{})
-		default:
-		}
-		if err != nil {
-			return nil, err
-		}
-		if len(buf) < (offset + 4) {
-			return nil, errBufferTooSmall
-		}
-		extensionLength := binary.BigEndian.Uint16(buf[offset+2:])
-		offset += (4 + int(extensionLength))
-	}
-	return extensions, nil
-}
-
-// Marshal many extensions at once
-func Marshal(e []Extension) ([]byte, error) {
-	extensions := []byte{}
-	for _, e := range e {
-		raw, err := e.Marshal()
-		if err != nil {
-			return nil, err
-		}
-		extensions = append(extensions, raw...)
-	}
-	out := []byte{0x00, 0x00}
-	binary.BigEndian.PutUint16(out, uint16(len(extensions)))
-	return append(out, extensions...), nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/extension_test.go b/anylink/dtls-2.0.9/pkg/protocol/extension/extension_test.go
deleted file mode 100644
index 3617c27..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/extension_test.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package extension
-
-import (
-	"errors"
-	"testing"
-)
-
-func TestExtensions(t *testing.T) {
-	t.Run("Zero", func(t *testing.T) {
-		extensions, err := Unmarshal([]byte{})
-		if err != nil || len(extensions) != 0 {
-			t.Fatal("Failed to decode zero extensions")
-		}
-	})
-
-	t.Run("Invalid", func(t *testing.T) {
-		extensions, err := Unmarshal([]byte{0x00})
-		if !errors.Is(err, errBufferTooSmall) || len(extensions) != 0 {
-			t.Fatal("Failed to error on invalid extension")
-		}
-	})
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/renegotiation_info.go b/anylink/dtls-2.0.9/pkg/protocol/extension/renegotiation_info.go
deleted file mode 100644
index 8378c3d..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/renegotiation_info.go
+++ /dev/null
@@ -1,43 +0,0 @@
-package extension
-
-import "encoding/binary"
-
-const (
-	renegotiationInfoHeaderSize = 5
-)
-
-// RenegotiationInfo allows a Client/Server to
-// communicate their renegotation support
-//
-// https://tools.ietf.org/html/rfc5746
-type RenegotiationInfo struct {
-	RenegotiatedConnection uint8
-}
-
-// TypeValue returns the extension TypeValue
-func (r RenegotiationInfo) TypeValue() TypeValue {
-	return RenegotiationInfoTypeValue
-}
-
-// Marshal encodes the extension
-func (r *RenegotiationInfo) Marshal() ([]byte, error) {
-	out := make([]byte, renegotiationInfoHeaderSize)
-
-	binary.BigEndian.PutUint16(out, uint16(r.TypeValue()))
-	binary.BigEndian.PutUint16(out[2:], uint16(1)) // length
-	out[4] = r.RenegotiatedConnection
-	return out, nil
-}
-
-// Unmarshal populates the extension from encoded data
-func (r *RenegotiationInfo) Unmarshal(data []byte) error {
-	if len(data) < renegotiationInfoHeaderSize {
-		return errBufferTooSmall
-	} else if TypeValue(binary.BigEndian.Uint16(data)) != r.TypeValue() {
-		return errInvalidExtensionType
-	}
-
-	r.RenegotiatedConnection = data[4]
-
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/renegotiation_info_test.go b/anylink/dtls-2.0.9/pkg/protocol/extension/renegotiation_info_test.go
deleted file mode 100644
index 0b86125..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/renegotiation_info_test.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package extension
-
-import "testing"
-
-func TestRenegotiationInfo(t *testing.T) {
-	extension := RenegotiationInfo{RenegotiatedConnection: 0}
-
-	raw, err := extension.Marshal()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	newExtension := RenegotiationInfo{}
-	err = newExtension.Unmarshal(raw)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if newExtension.RenegotiatedConnection != extension.RenegotiatedConnection {
-		t.Errorf("extensionRenegotiationInfo marshal: got %d expected %d", newExtension.RenegotiatedConnection, extension.RenegotiatedConnection)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/server_name.go b/anylink/dtls-2.0.9/pkg/protocol/extension/server_name.go
deleted file mode 100644
index a08033f..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/server_name.go
+++ /dev/null
@@ -1,78 +0,0 @@
-package extension
-
-import (
-	"strings"
-
-	"golang.org/x/crypto/cryptobyte"
-)
-
-const serverNameTypeDNSHostName = 0
-
-// ServerName allows the client to inform the server the specific
-// name it wishs to contact. Useful if multiple DNS names resolve
-// to one IP
-//
-// https://tools.ietf.org/html/rfc6066#section-3
-type ServerName struct {
-	ServerName string
-}
-
-// TypeValue returns the extension TypeValue
-func (s ServerName) TypeValue() TypeValue {
-	return ServerNameTypeValue
-}
-
-// Marshal encodes the extension
-func (s *ServerName) Marshal() ([]byte, error) {
-	var b cryptobyte.Builder
-	b.AddUint16(uint16(s.TypeValue()))
-	b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
-		b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
-			b.AddUint8(serverNameTypeDNSHostName)
-			b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
-				b.AddBytes([]byte(s.ServerName))
-			})
-		})
-	})
-	return b.Bytes()
-}
-
-// Unmarshal populates the extension from encoded data
-func (s *ServerName) Unmarshal(data []byte) error {
-	val := cryptobyte.String(data)
-	var extension uint16
-	val.ReadUint16(&extension)
-	if TypeValue(extension) != s.TypeValue() {
-		return errInvalidExtensionType
-	}
-
-	var extData cryptobyte.String
-	val.ReadUint16LengthPrefixed(&extData)
-
-	var nameList cryptobyte.String
-	if !extData.ReadUint16LengthPrefixed(&nameList) || nameList.Empty() {
-		return errInvalidSNIFormat
-	}
-	for !nameList.Empty() {
-		var nameType uint8
-		var serverName cryptobyte.String
-		if !nameList.ReadUint8(&nameType) ||
-			!nameList.ReadUint16LengthPrefixed(&serverName) ||
-			serverName.Empty() {
-			return errInvalidSNIFormat
-		}
-		if nameType != serverNameTypeDNSHostName {
-			continue
-		}
-		if len(s.ServerName) != 0 {
-			// Multiple names of the same name_type are prohibited.
-			return errInvalidSNIFormat
-		}
-		s.ServerName = string(serverName)
-		// An SNI value may not include a trailing dot.
-		if strings.HasSuffix(s.ServerName, ".") {
-			return errInvalidSNIFormat
-		}
-	}
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/server_name_test.go b/anylink/dtls-2.0.9/pkg/protocol/extension/server_name_test.go
deleted file mode 100644
index 4a3e3ae..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/server_name_test.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package extension
-
-import "testing"
-
-func TestServerName(t *testing.T) {
-	extension := ServerName{ServerName: "test.domain"}
-
-	raw, err := extension.Marshal()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	newExtension := ServerName{}
-	err = newExtension.Unmarshal(raw)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if newExtension.ServerName != extension.ServerName {
-		t.Errorf("extensionServerName marshal: got %s expected %s", newExtension.ServerName, extension.ServerName)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/srtp_protection_profile.go b/anylink/dtls-2.0.9/pkg/protocol/extension/srtp_protection_profile.go
deleted file mode 100644
index 2c4d1d4..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/srtp_protection_profile.go
+++ /dev/null
@@ -1,21 +0,0 @@
-package extension
-
-// SRTPProtectionProfile defines the parameters and options that are in effect for the SRTP processing
-// https://tools.ietf.org/html/rfc5764#section-4.1.2
-type SRTPProtectionProfile uint16
-
-const (
-	SRTP_AES128_CM_HMAC_SHA1_80 SRTPProtectionProfile = 0x0001 // nolint
-	SRTP_AES128_CM_HMAC_SHA1_32 SRTPProtectionProfile = 0x0002 // nolint
-	SRTP_AEAD_AES_128_GCM       SRTPProtectionProfile = 0x0007 // nolint
-	SRTP_AEAD_AES_256_GCM       SRTPProtectionProfile = 0x0008 // nolint
-)
-
-func srtpProtectionProfiles() map[SRTPProtectionProfile]bool {
-	return map[SRTPProtectionProfile]bool{
-		SRTP_AES128_CM_HMAC_SHA1_80: true,
-		SRTP_AES128_CM_HMAC_SHA1_32: true,
-		SRTP_AEAD_AES_128_GCM:       true,
-		SRTP_AEAD_AES_256_GCM:       true,
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/supported_elliptic_curves.go b/anylink/dtls-2.0.9/pkg/protocol/extension/supported_elliptic_curves.go
deleted file mode 100644
index 8f077fc..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/supported_elliptic_curves.go
+++ /dev/null
@@ -1,62 +0,0 @@
-package extension
-
-import (
-	"encoding/binary"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-)
-
-const (
-	supportedGroupsHeaderSize = 6
-)
-
-// SupportedEllipticCurves allows a Client/Server to communicate
-// what curves they both support
-//
-// https://tools.ietf.org/html/rfc8422#section-5.1.1
-type SupportedEllipticCurves struct {
-	EllipticCurves []elliptic.Curve
-}
-
-// TypeValue returns the extension TypeValue
-func (s SupportedEllipticCurves) TypeValue() TypeValue {
-	return SupportedEllipticCurvesTypeValue
-}
-
-// Marshal encodes the extension
-func (s *SupportedEllipticCurves) Marshal() ([]byte, error) {
-	out := make([]byte, supportedGroupsHeaderSize)
-
-	binary.BigEndian.PutUint16(out, uint16(s.TypeValue()))
-	binary.BigEndian.PutUint16(out[2:], uint16(2+(len(s.EllipticCurves)*2)))
-	binary.BigEndian.PutUint16(out[4:], uint16(len(s.EllipticCurves)*2))
-
-	for _, v := range s.EllipticCurves {
-		out = append(out, []byte{0x00, 0x00}...)
-		binary.BigEndian.PutUint16(out[len(out)-2:], uint16(v))
-	}
-
-	return out, nil
-}
-
-// Unmarshal populates the extension from encoded data
-func (s *SupportedEllipticCurves) Unmarshal(data []byte) error {
-	if len(data) <= supportedGroupsHeaderSize {
-		return errBufferTooSmall
-	} else if TypeValue(binary.BigEndian.Uint16(data)) != s.TypeValue() {
-		return errInvalidExtensionType
-	}
-
-	groupCount := int(binary.BigEndian.Uint16(data[4:]) / 2)
-	if supportedGroupsHeaderSize+(groupCount*2) > len(data) {
-		return errLengthMismatch
-	}
-
-	for i := 0; i < groupCount; i++ {
-		supportedGroupID := elliptic.Curve(binary.BigEndian.Uint16(data[(supportedGroupsHeaderSize + (i * 2)):]))
-		if _, ok := elliptic.Curves()[supportedGroupID]; ok {
-			s.EllipticCurves = append(s.EllipticCurves, supportedGroupID)
-		}
-	}
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/supported_elliptic_curves_test.go b/anylink/dtls-2.0.9/pkg/protocol/extension/supported_elliptic_curves_test.go
deleted file mode 100644
index c5a35d0..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/supported_elliptic_curves_test.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package extension
-
-import (
-	"reflect"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-)
-
-func TestExtensionSupportedGroups(t *testing.T) {
-	rawSupportedGroups := []byte{0x0, 0xa, 0x0, 0x4, 0x0, 0x2, 0x0, 0x1d}
-	parsedSupportedGroups := &SupportedEllipticCurves{
-		EllipticCurves: []elliptic.Curve{elliptic.X25519},
-	}
-
-	raw, err := parsedSupportedGroups.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawSupportedGroups) {
-		t.Errorf("extensionSupportedGroups marshal: got %#v, want %#v", raw, rawSupportedGroups)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/supported_point_formats.go b/anylink/dtls-2.0.9/pkg/protocol/extension/supported_point_formats.go
deleted file mode 100644
index 873d078..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/supported_point_formats.go
+++ /dev/null
@@ -1,62 +0,0 @@
-package extension
-
-import (
-	"encoding/binary"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-)
-
-const (
-	supportedPointFormatsSize = 5
-)
-
-// SupportedPointFormats allows a Client/Server to negotiate
-// the EllipticCurvePointFormats
-//
-// https://tools.ietf.org/html/rfc4492#section-5.1.2
-type SupportedPointFormats struct {
-	PointFormats []elliptic.CurvePointFormat
-}
-
-// TypeValue returns the extension TypeValue
-func (s SupportedPointFormats) TypeValue() TypeValue {
-	return SupportedPointFormatsTypeValue
-}
-
-// Marshal encodes the extension
-func (s *SupportedPointFormats) Marshal() ([]byte, error) {
-	out := make([]byte, supportedPointFormatsSize)
-
-	binary.BigEndian.PutUint16(out, uint16(s.TypeValue()))
-	binary.BigEndian.PutUint16(out[2:], uint16(1+(len(s.PointFormats))))
-	out[4] = byte(len(s.PointFormats))
-
-	for _, v := range s.PointFormats {
-		out = append(out, byte(v))
-	}
-	return out, nil
-}
-
-// Unmarshal populates the extension from encoded data
-func (s *SupportedPointFormats) Unmarshal(data []byte) error {
-	if len(data) <= supportedPointFormatsSize {
-		return errBufferTooSmall
-	} else if TypeValue(binary.BigEndian.Uint16(data)) != s.TypeValue() {
-		return errInvalidExtensionType
-	}
-
-	pointFormatCount := int(binary.BigEndian.Uint16(data[4:]))
-	if supportedGroupsHeaderSize+(pointFormatCount) > len(data) {
-		return errLengthMismatch
-	}
-
-	for i := 0; i < pointFormatCount; i++ {
-		p := elliptic.CurvePointFormat(data[supportedPointFormatsSize+i])
-		switch p {
-		case elliptic.CurvePointFormatUncompressed:
-			s.PointFormats = append(s.PointFormats, p)
-		default:
-		}
-	}
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/supported_point_formats_test.go b/anylink/dtls-2.0.9/pkg/protocol/extension/supported_point_formats_test.go
deleted file mode 100644
index 86dfc1b..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/supported_point_formats_test.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package extension
-
-import (
-	"reflect"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-)
-
-func TestExtensionSupportedPointFormats(t *testing.T) {
-	rawExtensionSupportedPointFormats := []byte{0x00, 0x0b, 0x00, 0x02, 0x01, 0x00}
-	parsedExtensionSupportedPointFormats := &SupportedPointFormats{
-		PointFormats: []elliptic.CurvePointFormat{elliptic.CurvePointFormatUncompressed},
-	}
-
-	raw, err := parsedExtensionSupportedPointFormats.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawExtensionSupportedPointFormats) {
-		t.Errorf("extensionSupportedPointFormats marshal: got %#v, want %#v", raw, rawExtensionSupportedPointFormats)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/supported_signature_algorithms.go b/anylink/dtls-2.0.9/pkg/protocol/extension/supported_signature_algorithms.go
deleted file mode 100644
index ee284f6..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/supported_signature_algorithms.go
+++ /dev/null
@@ -1,70 +0,0 @@
-package extension
-
-import (
-	"encoding/binary"
-
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-	"github.com/pion/dtls/v2/pkg/crypto/signature"
-	"github.com/pion/dtls/v2/pkg/crypto/signaturehash"
-)
-
-const (
-	supportedSignatureAlgorithmsHeaderSize = 6
-)
-
-// SupportedSignatureAlgorithms allows a Client/Server to
-// negotiate what SignatureHash Algorithms they both support
-//
-// https://tools.ietf.org/html/rfc5246#section-7.4.1.4.1
-type SupportedSignatureAlgorithms struct {
-	SignatureHashAlgorithms []signaturehash.Algorithm
-}
-
-// TypeValue returns the extension TypeValue
-func (s SupportedSignatureAlgorithms) TypeValue() TypeValue {
-	return SupportedSignatureAlgorithmsTypeValue
-}
-
-// Marshal encodes the extension
-func (s *SupportedSignatureAlgorithms) Marshal() ([]byte, error) {
-	out := make([]byte, supportedSignatureAlgorithmsHeaderSize)
-
-	binary.BigEndian.PutUint16(out, uint16(s.TypeValue()))
-	binary.BigEndian.PutUint16(out[2:], uint16(2+(len(s.SignatureHashAlgorithms)*2)))
-	binary.BigEndian.PutUint16(out[4:], uint16(len(s.SignatureHashAlgorithms)*2))
-	for _, v := range s.SignatureHashAlgorithms {
-		out = append(out, []byte{0x00, 0x00}...)
-		out[len(out)-2] = byte(v.Hash)
-		out[len(out)-1] = byte(v.Signature)
-	}
-
-	return out, nil
-}
-
-// Unmarshal populates the extension from encoded data
-func (s *SupportedSignatureAlgorithms) Unmarshal(data []byte) error {
-	if len(data) <= supportedSignatureAlgorithmsHeaderSize {
-		return errBufferTooSmall
-	} else if TypeValue(binary.BigEndian.Uint16(data)) != s.TypeValue() {
-		return errInvalidExtensionType
-	}
-
-	algorithmCount := int(binary.BigEndian.Uint16(data[4:]) / 2)
-	if supportedSignatureAlgorithmsHeaderSize+(algorithmCount*2) > len(data) {
-		return errLengthMismatch
-	}
-	for i := 0; i < algorithmCount; i++ {
-		supportedHashAlgorithm := hash.Algorithm(data[supportedSignatureAlgorithmsHeaderSize+(i*2)])
-		supportedSignatureAlgorithm := signature.Algorithm(data[supportedSignatureAlgorithmsHeaderSize+(i*2)+1])
-		if _, ok := hash.Algorithms()[supportedHashAlgorithm]; ok {
-			if _, ok := signature.Algorithms()[supportedSignatureAlgorithm]; ok {
-				s.SignatureHashAlgorithms = append(s.SignatureHashAlgorithms, signaturehash.Algorithm{
-					Hash:      supportedHashAlgorithm,
-					Signature: supportedSignatureAlgorithm,
-				})
-			}
-		}
-	}
-
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/supported_signature_algorithms_test.go b/anylink/dtls-2.0.9/pkg/protocol/extension/supported_signature_algorithms_test.go
deleted file mode 100644
index 52200ce..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/supported_signature_algorithms_test.go
+++ /dev/null
@@ -1,35 +0,0 @@
-package extension
-
-import (
-	"reflect"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-	"github.com/pion/dtls/v2/pkg/crypto/signature"
-	"github.com/pion/dtls/v2/pkg/crypto/signaturehash"
-)
-
-func TestExtensionSupportedSignatureAlgorithms(t *testing.T) {
-	rawExtensionSupportedSignatureAlgorithms := []byte{
-		0x00, 0x0d,
-		0x00, 0x08,
-		0x00, 0x06,
-		0x04, 0x03,
-		0x05, 0x03,
-		0x06, 0x03,
-	}
-	parsedExtensionSupportedSignatureAlgorithms := &SupportedSignatureAlgorithms{
-		SignatureHashAlgorithms: []signaturehash.Algorithm{
-			{Hash: hash.SHA256, Signature: signature.ECDSA},
-			{Hash: hash.SHA384, Signature: signature.ECDSA},
-			{Hash: hash.SHA512, Signature: signature.ECDSA},
-		},
-	}
-
-	raw, err := parsedExtensionSupportedSignatureAlgorithms.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawExtensionSupportedSignatureAlgorithms) {
-		t.Errorf("extensionSupportedSignatureAlgorithms marshal: got %#v, want %#v", raw, rawExtensionSupportedSignatureAlgorithms)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/use_master_secret.go b/anylink/dtls-2.0.9/pkg/protocol/extension/use_master_secret.go
deleted file mode 100644
index 04ddc95..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/use_master_secret.go
+++ /dev/null
@@ -1,45 +0,0 @@
-package extension
-
-import "encoding/binary"
-
-const (
-	useExtendedMasterSecretHeaderSize = 4
-)
-
-// UseExtendedMasterSecret defines a TLS extension that contextually binds the
-// master secret to a log of the full handshake that computes it, thus
-// preventing MITM attacks.
-type UseExtendedMasterSecret struct {
-	Supported bool
-}
-
-// TypeValue returns the extension TypeValue
-func (u UseExtendedMasterSecret) TypeValue() TypeValue {
-	return UseExtendedMasterSecretTypeValue
-}
-
-// Marshal encodes the extension
-func (u *UseExtendedMasterSecret) Marshal() ([]byte, error) {
-	if !u.Supported {
-		return []byte{}, nil
-	}
-
-	out := make([]byte, useExtendedMasterSecretHeaderSize)
-
-	binary.BigEndian.PutUint16(out, uint16(u.TypeValue()))
-	binary.BigEndian.PutUint16(out[2:], uint16(0)) // length
-	return out, nil
-}
-
-// Unmarshal populates the extension from encoded data
-func (u *UseExtendedMasterSecret) Unmarshal(data []byte) error {
-	if len(data) < useExtendedMasterSecretHeaderSize {
-		return errBufferTooSmall
-	} else if TypeValue(binary.BigEndian.Uint16(data)) != u.TypeValue() {
-		return errInvalidExtensionType
-	}
-
-	u.Supported = true
-
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/use_srtp.go b/anylink/dtls-2.0.9/pkg/protocol/extension/use_srtp.go
deleted file mode 100644
index 729fa3a..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/use_srtp.go
+++ /dev/null
@@ -1,59 +0,0 @@
-package extension
-
-import "encoding/binary"
-
-const (
-	useSRTPHeaderSize = 6
-)
-
-// UseSRTP allows a Client/Server to negotiate what SRTPProtectionProfiles
-// they both support
-//
-// https://tools.ietf.org/html/rfc8422
-type UseSRTP struct {
-	ProtectionProfiles []SRTPProtectionProfile
-}
-
-// TypeValue returns the extension TypeValue
-func (u UseSRTP) TypeValue() TypeValue {
-	return UseSRTPTypeValue
-}
-
-// Marshal encodes the extension
-func (u *UseSRTP) Marshal() ([]byte, error) {
-	out := make([]byte, useSRTPHeaderSize)
-
-	binary.BigEndian.PutUint16(out, uint16(u.TypeValue()))
-	binary.BigEndian.PutUint16(out[2:], uint16(2+(len(u.ProtectionProfiles)*2)+ /* MKI Length */ 1))
-	binary.BigEndian.PutUint16(out[4:], uint16(len(u.ProtectionProfiles)*2))
-
-	for _, v := range u.ProtectionProfiles {
-		out = append(out, []byte{0x00, 0x00}...)
-		binary.BigEndian.PutUint16(out[len(out)-2:], uint16(v))
-	}
-
-	out = append(out, 0x00) /* MKI Length */
-	return out, nil
-}
-
-// Unmarshal populates the extension from encoded data
-func (u *UseSRTP) Unmarshal(data []byte) error {
-	if len(data) <= useSRTPHeaderSize {
-		return errBufferTooSmall
-	} else if TypeValue(binary.BigEndian.Uint16(data)) != u.TypeValue() {
-		return errInvalidExtensionType
-	}
-
-	profileCount := int(binary.BigEndian.Uint16(data[4:]) / 2)
-	if supportedGroupsHeaderSize+(profileCount*2) > len(data) {
-		return errLengthMismatch
-	}
-
-	for i := 0; i < profileCount; i++ {
-		supportedProfile := SRTPProtectionProfile(binary.BigEndian.Uint16(data[(useSRTPHeaderSize + (i * 2)):]))
-		if _, ok := srtpProtectionProfiles()[supportedProfile]; ok {
-			u.ProtectionProfiles = append(u.ProtectionProfiles, supportedProfile)
-		}
-	}
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/extension/use_srtp_test.go b/anylink/dtls-2.0.9/pkg/protocol/extension/use_srtp_test.go
deleted file mode 100644
index 36a5d68..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/extension/use_srtp_test.go
+++ /dev/null
@@ -1,20 +0,0 @@
-package extension
-
-import (
-	"reflect"
-	"testing"
-)
-
-func TestExtensionUseSRTP(t *testing.T) {
-	rawUseSRTP := []byte{0x00, 0x0e, 0x00, 0x05, 0x00, 0x02, 0x00, 0x01, 0x00}
-	parsedUseSRTP := &UseSRTP{
-		ProtectionProfiles: []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_80},
-	}
-
-	raw, err := parsedUseSRTP.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawUseSRTP) {
-		t.Errorf("extensionUseSRTP marshal: got %#v, want %#v", raw, rawUseSRTP)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/cipher_suite.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/cipher_suite.go
deleted file mode 100644
index e8fbdea..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/cipher_suite.go
+++ /dev/null
@@ -1,29 +0,0 @@
-package handshake
-
-import "encoding/binary"
-
-func decodeCipherSuiteIDs(buf []byte) ([]uint16, error) {
-	if len(buf) < 2 {
-		return nil, errBufferTooSmall
-	}
-	cipherSuitesCount := int(binary.BigEndian.Uint16(buf[0:])) / 2
-	rtrn := make([]uint16, cipherSuitesCount)
-	for i := 0; i < cipherSuitesCount; i++ {
-		if len(buf) < (i*2 + 4) {
-			return nil, errBufferTooSmall
-		}
-
-		rtrn[i] = binary.BigEndian.Uint16(buf[(i*2)+2:])
-	}
-	return rtrn, nil
-}
-
-func encodeCipherSuiteIDs(cipherSuiteIDs []uint16) []byte {
-	out := []byte{0x00, 0x00}
-	binary.BigEndian.PutUint16(out[len(out)-2:], uint16(len(cipherSuiteIDs)*2))
-	for _, id := range cipherSuiteIDs {
-		out = append(out, []byte{0x00, 0x00}...)
-		binary.BigEndian.PutUint16(out[len(out)-2:], id)
-	}
-	return out
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/cipher_suite_test.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/cipher_suite_test.go
deleted file mode 100644
index 9197255..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/cipher_suite_test.go
+++ /dev/null
@@ -1,23 +0,0 @@
-package handshake
-
-import (
-	"errors"
-	"testing"
-)
-
-func TestDecodeCipherSuiteIDs(t *testing.T) {
-	testCases := []struct {
-		buf    []byte
-		result []uint16
-		err    error
-	}{
-		{[]byte{}, nil, errBufferTooSmall},
-	}
-
-	for _, testCase := range testCases {
-		_, err := decodeCipherSuiteIDs(testCase.buf)
-		if !errors.Is(err, testCase.err) {
-			t.Fatal("Unexpected error", err)
-		}
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/errors.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/errors.go
deleted file mode 100644
index ac77c04..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/errors.go
+++ /dev/null
@@ -1,25 +0,0 @@
-package handshake
-
-import (
-	"errors"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-)
-
-// Typed errors
-var (
-	errUnableToMarshalFragmented = &protocol.InternalError{Err: errors.New("unable to marshal fragmented handshakes")}                               //nolint:goerr113
-	errHandshakeMessageUnset     = &protocol.InternalError{Err: errors.New("handshake message unset, unable to marshal")}                            //nolint:goerr113
-	errBufferTooSmall            = &protocol.TemporaryError{Err: errors.New("buffer is too small")}                                                  //nolint:goerr113
-	errLengthMismatch            = &protocol.InternalError{Err: errors.New("data length and declared length do not match")}                          //nolint:goerr113
-	errInvalidClientKeyExchange  = &protocol.FatalError{Err: errors.New("unable to determine if ClientKeyExchange is a public key or PSK Identity")} //nolint:goerr113
-	errInvalidHashAlgorithm      = &protocol.FatalError{Err: errors.New("invalid hash algorithm")}                                                   //nolint:goerr113
-	errInvalidSignatureAlgorithm = &protocol.FatalError{Err: errors.New("invalid signature algorithm")}                                              //nolint:goerr113
-	errCookieTooLong             = &protocol.FatalError{Err: errors.New("cookie must not be longer then 255 bytes")}                                 //nolint:goerr113
-	errInvalidEllipticCurveType  = &protocol.FatalError{Err: errors.New("invalid or unknown elliptic curve type")}                                   //nolint:goerr113
-	errInvalidNamedCurve         = &protocol.FatalError{Err: errors.New("invalid named curve")}                                                      //nolint:goerr113
-	errCipherSuiteUnset          = &protocol.FatalError{Err: errors.New("server hello can not be created without a cipher suite")}                   //nolint:goerr113
-	errCompressionMethodUnset    = &protocol.FatalError{Err: errors.New("server hello can not be created without a compression method")}             //nolint:goerr113
-	errInvalidCompressionMethod  = &protocol.FatalError{Err: errors.New("invalid or unknown compression method")}                                    //nolint:goerr113
-	errNotImplemented            = &protocol.InternalError{Err: errors.New("feature has not been implemented yet")}                                  //nolint:goerr113
-)
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/handshake.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/handshake.go
deleted file mode 100644
index 4aa493e..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/handshake.go
+++ /dev/null
@@ -1,145 +0,0 @@
-// Package handshake provides the DTLS wire protocol for handshakes
-package handshake
-
-import (
-	"github.com/pion/dtls/v2/internal/util"
-	"github.com/pion/dtls/v2/pkg/protocol"
-)
-
-// Type is the unique identifier for each handshake message
-// https://tools.ietf.org/html/rfc5246#section-7.4
-type Type uint8
-
-// Types of DTLS Handshake messages we know about
-const (
-	TypeHelloRequest       Type = 0
-	TypeClientHello        Type = 1
-	TypeServerHello        Type = 2
-	TypeHelloVerifyRequest Type = 3
-	TypeCertificate        Type = 11
-	TypeServerKeyExchange  Type = 12
-	TypeCertificateRequest Type = 13
-	TypeServerHelloDone    Type = 14
-	TypeCertificateVerify  Type = 15
-	TypeClientKeyExchange  Type = 16
-	TypeFinished           Type = 20
-)
-
-// String returns the string representation of this type
-func (t Type) String() string {
-	switch t {
-	case TypeHelloRequest:
-		return "HelloRequest"
-	case TypeClientHello:
-		return "ClientHello"
-	case TypeServerHello:
-		return "ServerHello"
-	case TypeHelloVerifyRequest:
-		return "HelloVerifyRequest"
-	case TypeCertificate:
-		return "TypeCertificate"
-	case TypeServerKeyExchange:
-		return "ServerKeyExchange"
-	case TypeCertificateRequest:
-		return "CertificateRequest"
-	case TypeServerHelloDone:
-		return "ServerHelloDone"
-	case TypeCertificateVerify:
-		return "CertificateVerify"
-	case TypeClientKeyExchange:
-		return "ClientKeyExchange"
-	case TypeFinished:
-		return "Finished"
-	}
-	return ""
-}
-
-// Message is the body of a Handshake datagram
-type Message interface {
-	Marshal() ([]byte, error)
-	Unmarshal(data []byte) error
-
-	Type() Type
-}
-
-// Handshake protocol is responsible for selecting a cipher spec and
-// generating a master secret, which together comprise the primary
-// cryptographic parameters associated with a secure session.  The
-// handshake protocol can also optionally authenticate parties who have
-// certificates signed by a trusted certificate authority.
-// https://tools.ietf.org/html/rfc5246#section-7.3
-type Handshake struct {
-	Header  Header
-	Message Message
-}
-
-// ContentType returns what kind of content this message is carying
-func (h Handshake) ContentType() protocol.ContentType {
-	return protocol.ContentTypeHandshake
-}
-
-// Marshal encodes a handshake into a binary message
-func (h *Handshake) Marshal() ([]byte, error) {
-	if h.Message == nil {
-		return nil, errHandshakeMessageUnset
-	} else if h.Header.FragmentOffset != 0 {
-		return nil, errUnableToMarshalFragmented
-	}
-
-	msg, err := h.Message.Marshal()
-	if err != nil {
-		return nil, err
-	}
-
-	h.Header.Length = uint32(len(msg))
-	h.Header.FragmentLength = h.Header.Length
-	h.Header.Type = h.Message.Type()
-	header, err := h.Header.Marshal()
-	if err != nil {
-		return nil, err
-	}
-
-	return append(header, msg...), nil
-}
-
-// Unmarshal decodes a handshake from a binary message
-func (h *Handshake) Unmarshal(data []byte) error {
-	if err := h.Header.Unmarshal(data); err != nil {
-		return err
-	}
-
-	reportedLen := util.BigEndianUint24(data[1:])
-	if uint32(len(data)-HeaderLength) != reportedLen {
-		return errLengthMismatch
-	} else if reportedLen != h.Header.FragmentLength {
-		return errLengthMismatch
-	}
-
-	switch Type(data[0]) {
-	case TypeHelloRequest:
-		return errNotImplemented
-	case TypeClientHello:
-		h.Message = &MessageClientHello{}
-	case TypeHelloVerifyRequest:
-		h.Message = &MessageHelloVerifyRequest{}
-	case TypeServerHello:
-		h.Message = &MessageServerHello{}
-	case TypeCertificate:
-		h.Message = &MessageCertificate{}
-	case TypeServerKeyExchange:
-		h.Message = &MessageServerKeyExchange{}
-	case TypeCertificateRequest:
-		h.Message = &MessageCertificateRequest{}
-	case TypeServerHelloDone:
-		h.Message = &MessageServerHelloDone{}
-	case TypeClientKeyExchange:
-		h.Message = &MessageClientKeyExchange{}
-	case TypeFinished:
-		h.Message = &MessageFinished{}
-	case TypeCertificateVerify:
-		h.Message = &MessageCertificateVerify{}
-	default:
-		return errNotImplemented
-	}
-	return h.Message.Unmarshal(data[HeaderLength:])
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/header.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/header.go
deleted file mode 100644
index cb6a224..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/header.go
+++ /dev/null
@@ -1,50 +0,0 @@
-package handshake
-
-import (
-	"encoding/binary"
-
-	"github.com/pion/dtls/v2/internal/util"
-)
-
-// HeaderLength msg_len for Handshake messages assumes an extra
-// 12 bytes for sequence, fragment and version information vs TLS
-const HeaderLength = 12
-
-// Header is the static first 12 bytes of each RecordLayer
-// of type Handshake. These fields allow us to support message loss, reordering, and
-// message fragmentation,
-//
-// https://tools.ietf.org/html/rfc6347#section-4.2.2
-type Header struct {
-	Type            Type
-	Length          uint32 // uint24 in spec
-	MessageSequence uint16
-	FragmentOffset  uint32 // uint24 in spec
-	FragmentLength  uint32 // uint24 in spec
-}
-
-// Marshal encodes the Header
-func (h *Header) Marshal() ([]byte, error) {
-	out := make([]byte, HeaderLength)
-
-	out[0] = byte(h.Type)
-	util.PutBigEndianUint24(out[1:], h.Length)
-	binary.BigEndian.PutUint16(out[4:], h.MessageSequence)
-	util.PutBigEndianUint24(out[6:], h.FragmentOffset)
-	util.PutBigEndianUint24(out[9:], h.FragmentLength)
-	return out, nil
-}
-
-// Unmarshal populates the header from encoded data
-func (h *Header) Unmarshal(data []byte) error {
-	if len(data) < HeaderLength {
-		return errBufferTooSmall
-	}
-
-	h.Type = Type(data[0])
-	h.Length = util.BigEndianUint24(data[1:])
-	h.MessageSequence = binary.BigEndian.Uint16(data[4:])
-	h.FragmentOffset = util.BigEndianUint24(data[6:])
-	h.FragmentLength = util.BigEndianUint24(data[9:])
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate.go
deleted file mode 100644
index 05fb746..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate.go
+++ /dev/null
@@ -1,66 +0,0 @@
-package handshake
-
-import (
-	"github.com/pion/dtls/v2/internal/util"
-)
-
-// MessageCertificate is a DTLS Handshake Message
-// it can contain either a Client or Server Certificate
-//
-// https://tools.ietf.org/html/rfc5246#section-7.4.2
-type MessageCertificate struct {
-	Certificate [][]byte
-}
-
-// Type returns the Handshake Type
-func (m MessageCertificate) Type() Type {
-	return TypeCertificate
-}
-
-const (
-	handshakeMessageCertificateLengthFieldSize = 3
-)
-
-// Marshal encodes the Handshake
-func (m *MessageCertificate) Marshal() ([]byte, error) {
-	out := make([]byte, handshakeMessageCertificateLengthFieldSize)
-
-	for _, r := range m.Certificate {
-		// Certificate Length
-		out = append(out, make([]byte, handshakeMessageCertificateLengthFieldSize)...)
-		util.PutBigEndianUint24(out[len(out)-handshakeMessageCertificateLengthFieldSize:], uint32(len(r)))
-
-		// Certificate body
-		out = append(out, append([]byte{}, r...)...)
-	}
-
-	// Total Payload Size
-	util.PutBigEndianUint24(out[0:], uint32(len(out[handshakeMessageCertificateLengthFieldSize:])))
-	return out, nil
-}
-
-// Unmarshal populates the message from encoded data
-func (m *MessageCertificate) Unmarshal(data []byte) error {
-	if len(data) < handshakeMessageCertificateLengthFieldSize {
-		return errBufferTooSmall
-	}
-
-	if certificateBodyLen := int(util.BigEndianUint24(data)); certificateBodyLen+handshakeMessageCertificateLengthFieldSize != len(data) {
-		return errLengthMismatch
-	}
-
-	offset := handshakeMessageCertificateLengthFieldSize
-	for offset < len(data) {
-		certificateLen := int(util.BigEndianUint24(data[offset:]))
-		offset += handshakeMessageCertificateLengthFieldSize
-
-		if offset+certificateLen > len(data) {
-			return errLengthMismatch
-		}
-
-		m.Certificate = append(m.Certificate, append([]byte{}, data[offset:offset+certificateLen]...))
-		offset += certificateLen
-	}
-
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_request.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_request.go
deleted file mode 100644
index e711f39..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_request.go
+++ /dev/null
@@ -1,100 +0,0 @@
-package handshake
-
-import (
-	"encoding/binary"
-
-	"github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-	"github.com/pion/dtls/v2/pkg/crypto/signature"
-	"github.com/pion/dtls/v2/pkg/crypto/signaturehash"
-)
-
-/*
-MessageCertificateRequest is so a non-anonymous server can optionally
-request a certificate from the client, if appropriate for the selected cipher
-suite.  This message, if sent, will immediately follow the ServerKeyExchange
-message (if it is sent; otherwise, this message follows the
-server's Certificate message).
-
-https://tools.ietf.org/html/rfc5246#section-7.4.4
-*/
-type MessageCertificateRequest struct {
-	CertificateTypes        []clientcertificate.Type
-	SignatureHashAlgorithms []signaturehash.Algorithm
-}
-
-const (
-	messageCertificateRequestMinLength = 5
-)
-
-// Type returns the Handshake Type
-func (m MessageCertificateRequest) Type() Type {
-	return TypeCertificateRequest
-}
-
-// Marshal encodes the Handshake
-func (m *MessageCertificateRequest) Marshal() ([]byte, error) {
-	out := []byte{byte(len(m.CertificateTypes))}
-	for _, v := range m.CertificateTypes {
-		out = append(out, byte(v))
-	}
-
-	out = append(out, []byte{0x00, 0x00}...)
-	binary.BigEndian.PutUint16(out[len(out)-2:], uint16(len(m.SignatureHashAlgorithms)*2))
-	for _, v := range m.SignatureHashAlgorithms {
-		out = append(out, byte(v.Hash))
-		out = append(out, byte(v.Signature))
-	}
-
-	out = append(out, []byte{0x00, 0x00}...) // Distinguished Names Length
-	return out, nil
-}
-
-// Unmarshal populates the message from encoded data
-func (m *MessageCertificateRequest) Unmarshal(data []byte) error {
-	if len(data) < messageCertificateRequestMinLength {
-		return errBufferTooSmall
-	}
-
-	offset := 0
-	certificateTypesLength := int(data[0])
-	offset++
-
-	if (offset + certificateTypesLength) > len(data) {
-		return errBufferTooSmall
-	}
-
-	for i := 0; i < certificateTypesLength; i++ {
-		certType := clientcertificate.Type(data[offset+i])
-		if _, ok := clientcertificate.Types()[certType]; ok {
-			m.CertificateTypes = append(m.CertificateTypes, certType)
-		}
-	}
-	offset += certificateTypesLength
-	if len(data) < offset+2 {
-		return errBufferTooSmall
-	}
-	signatureHashAlgorithmsLength := int(binary.BigEndian.Uint16(data[offset:]))
-	offset += 2
-
-	if (offset + signatureHashAlgorithmsLength) > len(data) {
-		return errBufferTooSmall
-	}
-
-	for i := 0; i < signatureHashAlgorithmsLength; i += 2 {
-		if len(data) < (offset + i + 2) {
-			return errBufferTooSmall
-		}
-		h := hash.Algorithm(data[offset+i])
-		s := signature.Algorithm(data[offset+i+1])
-
-		if _, ok := hash.Algorithms()[h]; !ok {
-			continue
-		} else if _, ok := signature.Algorithms()[s]; !ok {
-			continue
-		}
-		m.SignatureHashAlgorithms = append(m.SignatureHashAlgorithms, signaturehash.Algorithm{Signature: s, Hash: h})
-	}
-
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_request_test.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_request_test.go
deleted file mode 100644
index 1d73ae5..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_request_test.go
+++ /dev/null
@@ -1,46 +0,0 @@
-package handshake
-
-import (
-	"reflect"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/crypto/clientcertificate"
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-	"github.com/pion/dtls/v2/pkg/crypto/signature"
-	"github.com/pion/dtls/v2/pkg/crypto/signaturehash"
-)
-
-func TestHandshakeMessageCertificateRequest(t *testing.T) {
-	rawCertificateRequest := []byte{
-		0x02, 0x01, 0x40, 0x00, 0x0C, 0x04, 0x03, 0x04, 0x01, 0x05,
-		0x03, 0x05, 0x01, 0x06, 0x01, 0x02, 0x01, 0x00, 0x00,
-	}
-	parsedCertificateRequest := &MessageCertificateRequest{
-		CertificateTypes: []clientcertificate.Type{
-			clientcertificate.RSASign,
-			clientcertificate.ECDSASign,
-		},
-		SignatureHashAlgorithms: []signaturehash.Algorithm{
-			{Hash: hash.SHA256, Signature: signature.ECDSA},
-			{Hash: hash.SHA256, Signature: signature.RSA},
-			{Hash: hash.SHA384, Signature: signature.ECDSA},
-			{Hash: hash.SHA384, Signature: signature.RSA},
-			{Hash: hash.SHA512, Signature: signature.RSA},
-			{Hash: hash.SHA1, Signature: signature.RSA},
-		},
-	}
-
-	c := &MessageCertificateRequest{}
-	if err := c.Unmarshal(rawCertificateRequest); err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(c, parsedCertificateRequest) {
-		t.Errorf("parsedCertificateRequest unmarshal: got %#v, want %#v", c, parsedCertificateRequest)
-	}
-
-	raw, err := c.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawCertificateRequest) {
-		t.Errorf("parsedCertificateRequest marshal: got %#v, want %#v", raw, rawCertificateRequest)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_test.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_test.go
deleted file mode 100644
index aafb09f..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_test.go
+++ /dev/null
@@ -1,99 +0,0 @@
-package handshake
-
-import (
-	"crypto/x509"
-	"reflect"
-	"testing"
-)
-
-func TestHandshakeMessageCertificate(t *testing.T) {
-	// Not easy to mock out these members, just copy for now (since everything else matches)
-	copyCertificatePrivateMembers := func(src, dst *x509.Certificate) {
-		dst.PublicKey = src.PublicKey
-		dst.SerialNumber = src.SerialNumber
-		dst.Issuer = src.Issuer
-		dst.Subject = src.Subject
-		dst.NotBefore = src.NotBefore
-		dst.NotAfter = src.NotAfter
-	}
-
-	rawCertificate := []byte{
-		0x00, 0x01, 0x8c, 0x00, 0x01, 0x89, 0x30, 0x82, 0x01, 0x85, 0x30, 0x82, 0x01, 0x2b, 0x02, 0x14,
-		0x7d, 0x00, 0xcf, 0x07, 0xfc, 0xe2, 0xb6, 0xb8, 0x3f, 0x72, 0xeb, 0x11, 0x36, 0x1b, 0xf6, 0x39,
-		0xf1, 0x3c, 0x33, 0x41, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02,
-		0x30, 0x45, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x41, 0x55, 0x31,
-		0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x08, 0x0c, 0x0a, 0x53, 0x6f, 0x6d, 0x65, 0x2d, 0x53,
-		0x74, 0x61, 0x74, 0x65, 0x31, 0x21, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x0c, 0x18, 0x49,
-		0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x20, 0x57, 0x69, 0x64, 0x67, 0x69, 0x74, 0x73, 0x20,
-		0x50, 0x74, 0x79, 0x20, 0x4c, 0x74, 0x64, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x38, 0x31, 0x30, 0x32,
-		0x35, 0x30, 0x38, 0x35, 0x31, 0x31, 0x32, 0x5a, 0x17, 0x0d, 0x31, 0x39, 0x31, 0x30, 0x32, 0x35,
-		0x30, 0x38, 0x35, 0x31, 0x31, 0x32, 0x5a, 0x30, 0x45, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55,
-		0x04, 0x06, 0x13, 0x02, 0x41, 0x55, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x08, 0x0c,
-		0x0a, 0x53, 0x6f, 0x6d, 0x65, 0x2d, 0x53, 0x74, 0x61, 0x74, 0x65, 0x31, 0x21, 0x30, 0x1f, 0x06,
-		0x03, 0x55, 0x04, 0x0a, 0x0c, 0x18, 0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x20, 0x57,
-		0x69, 0x64, 0x67, 0x69, 0x74, 0x73, 0x20, 0x50, 0x74, 0x79, 0x20, 0x4c, 0x74, 0x64, 0x30, 0x59,
-		0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48,
-		0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0xf9, 0xb1, 0x62, 0xd6, 0x07, 0xae, 0xc3,
-		0x36, 0x34, 0xf5, 0xa3, 0x09, 0x39, 0x86, 0xe7, 0x3b, 0x59, 0xf7, 0x4a, 0x1d, 0xf4, 0x97, 0x4f,
-		0x91, 0x40, 0x56, 0x1b, 0x3d, 0x6c, 0x5a, 0x38, 0x10, 0x15, 0x58, 0xf5, 0xa4, 0xcc, 0xdf, 0xd5,
-		0xf5, 0x4a, 0x35, 0x40, 0x0f, 0x9f, 0x54, 0xb7, 0xe9, 0xe2, 0xae, 0x63, 0x83, 0x6a, 0x4c, 0xfc,
-		0xc2, 0x5f, 0x78, 0xa0, 0xbb, 0x46, 0x54, 0xa4, 0xda, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48,
-		0xce, 0x3d, 0x04, 0x03, 0x02, 0x03, 0x48, 0x00, 0x30, 0x45, 0x02, 0x20, 0x47, 0x1a, 0x5f, 0x58,
-		0x2a, 0x74, 0x33, 0x6d, 0xed, 0xac, 0x37, 0x21, 0xfa, 0x76, 0x5a, 0x4d, 0x78, 0x68, 0x1a, 0xdd,
-		0x80, 0xa4, 0xd4, 0xb7, 0x7f, 0x7d, 0x78, 0xb3, 0xfb, 0xf3, 0x95, 0xfb, 0x02, 0x21, 0x00, 0xc0,
-		0x73, 0x30, 0xda, 0x2b, 0xc0, 0x0c, 0x9e, 0xb2, 0x25, 0x0d, 0x46, 0xb0, 0xbc, 0x66, 0x7f, 0x71,
-		0x66, 0xbf, 0x16, 0xb3, 0x80, 0x78, 0xd0, 0x0c, 0xef, 0xcc, 0xf5, 0xc1, 0x15, 0x0f, 0x58,
-	}
-
-	parsedCertificate := &x509.Certificate{
-		Raw:                     rawCertificate[6:],
-		RawTBSCertificate:       rawCertificate[10:313],
-		RawSubjectPublicKeyInfo: rawCertificate[222:313],
-		RawSubject:              rawCertificate[48:119],
-		RawIssuer:               rawCertificate[48:119],
-		Signature:               rawCertificate[328:],
-		SignatureAlgorithm:      x509.ECDSAWithSHA256,
-		PublicKeyAlgorithm:      x509.ECDSA,
-		Version:                 1,
-	}
-
-	c := &MessageCertificate{}
-	if err := c.Unmarshal(rawCertificate); err != nil {
-		t.Error(err)
-	} else {
-		certificate, err := x509.ParseCertificate(c.Certificate[0])
-		if err != nil {
-			t.Error(err)
-		}
-		copyCertificatePrivateMembers(certificate, parsedCertificate)
-		if !reflect.DeepEqual(certificate, parsedCertificate) {
-			t.Errorf("handshakeMessageCertificate unmarshal: got %#v, want %#v", c, parsedCertificate)
-		}
-	}
-
-	raw, err := c.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawCertificate) {
-		t.Errorf("handshakeMessageCertificate marshal: got %#v, want %#v", raw, rawCertificate)
-	}
-}
-
-func TestEmptyHandshakeMessageCertificate(t *testing.T) {
-	rawCertificate := []byte{
-		0x00, 0x00, 0x00,
-	}
-
-	expectedCertificate := &MessageCertificate{
-		Certificate: nil,
-	}
-
-	c := &MessageCertificate{}
-	if err := c.Unmarshal(rawCertificate); err != nil {
-		t.Error(err)
-	}
-
-	if !reflect.DeepEqual(c, expectedCertificate) {
-		t.Errorf("handshakeMessageCertificate unmarshal: got %#v, want %#v", c, expectedCertificate)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_verify.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_verify.go
deleted file mode 100644
index fb5e463..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_verify.go
+++ /dev/null
@@ -1,61 +0,0 @@
-package handshake
-
-import (
-	"encoding/binary"
-
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-	"github.com/pion/dtls/v2/pkg/crypto/signature"
-)
-
-// MessageCertificateVerify provide explicit verification of a
-// client certificate.
-//
-// https://tools.ietf.org/html/rfc5246#section-7.4.8
-type MessageCertificateVerify struct {
-	HashAlgorithm      hash.Algorithm
-	SignatureAlgorithm signature.Algorithm
-	Signature          []byte
-}
-
-const handshakeMessageCertificateVerifyMinLength = 4
-
-// Type returns the Handshake Type
-func (m MessageCertificateVerify) Type() Type {
-	return TypeCertificateVerify
-}
-
-// Marshal encodes the Handshake
-func (m *MessageCertificateVerify) Marshal() ([]byte, error) {
-	out := make([]byte, 1+1+2+len(m.Signature))
-
-	out[0] = byte(m.HashAlgorithm)
-	out[1] = byte(m.SignatureAlgorithm)
-	binary.BigEndian.PutUint16(out[2:], uint16(len(m.Signature)))
-	copy(out[4:], m.Signature)
-	return out, nil
-}
-
-// Unmarshal populates the message from encoded data
-func (m *MessageCertificateVerify) Unmarshal(data []byte) error {
-	if len(data) < handshakeMessageCertificateVerifyMinLength {
-		return errBufferTooSmall
-	}
-
-	m.HashAlgorithm = hash.Algorithm(data[0])
-	if _, ok := hash.Algorithms()[m.HashAlgorithm]; !ok {
-		return errInvalidHashAlgorithm
-	}
-
-	m.SignatureAlgorithm = signature.Algorithm(data[1])
-	if _, ok := signature.Algorithms()[m.SignatureAlgorithm]; !ok {
-		return errInvalidSignatureAlgorithm
-	}
-
-	signatureLength := int(binary.BigEndian.Uint16(data[2:]))
-	if (signatureLength + 4) != len(data) {
-		return errBufferTooSmall
-	}
-
-	m.Signature = append([]byte{}, data[4:]...)
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_verify_test.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_verify_test.go
deleted file mode 100644
index 5e55dc5..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_certificate_verify_test.go
+++ /dev/null
@@ -1,38 +0,0 @@
-package handshake
-
-import (
-	"reflect"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-	"github.com/pion/dtls/v2/pkg/crypto/signature"
-)
-
-func TestHandshakeMessageCertificateVerify(t *testing.T) {
-	rawCertificateVerify := []byte{
-		0x04, 0x03, 0x00, 0x47, 0x30, 0x45, 0x02, 0x20, 0x6b, 0x63, 0x17, 0xad, 0xbe, 0xb7, 0x7b, 0x0f,
-		0x86, 0x73, 0x39, 0x1e, 0xba, 0xb3, 0x50, 0x9c, 0xce, 0x9c, 0xe4, 0x8b, 0xe5, 0x13, 0x07, 0x59,
-		0x18, 0x1f, 0xe5, 0xa0, 0x2b, 0xca, 0xa6, 0xad, 0x02, 0x21, 0x00, 0xd3, 0xb5, 0x01, 0xbe, 0x87,
-		0x6c, 0x04, 0xa1, 0xdc, 0x28, 0xaa, 0x5f, 0xf7, 0x1e, 0x9c, 0xc0, 0x1e, 0x00, 0x2c, 0xe5, 0x94,
-		0xbb, 0x03, 0x0e, 0xf1, 0xcb, 0x28, 0x22, 0x33, 0x23, 0x88, 0xad,
-	}
-	parsedCertificateVerify := &MessageCertificateVerify{
-		HashAlgorithm:      hash.Algorithm(rawCertificateVerify[0]),
-		SignatureAlgorithm: signature.Algorithm(rawCertificateVerify[1]),
-		Signature:          rawCertificateVerify[4:],
-	}
-
-	c := &MessageCertificateVerify{}
-	if err := c.Unmarshal(rawCertificateVerify); err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(c, parsedCertificateVerify) {
-		t.Errorf("handshakeMessageCertificate unmarshal: got %#v, want %#v", c, parsedCertificateVerify)
-	}
-
-	raw, err := c.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawCertificateVerify) {
-		t.Errorf("handshakeMessageCertificateVerify marshal: got %#v, want %#v", raw, rawCertificateVerify)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_client_hello.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_client_hello.go
deleted file mode 100644
index 7afad6b..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_client_hello.go
+++ /dev/null
@@ -1,130 +0,0 @@
-package handshake
-
-import (
-	"encoding/binary"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/extension"
-)
-
-/*
-MessageClientHello is for when a client first connects to a server it is
-required to send the client hello as its first message.  The client can also send a
-client hello in response to a hello request or on its own
-initiative in order to renegotiate the security parameters in an
-existing connection.
-*/
-type MessageClientHello struct {
-	Version protocol.Version
-	Random  Random
-	Cookie  []byte
-
-	SessionID []byte // TODO 添加anylink支持
-
-	CipherSuiteIDs     []uint16
-	CompressionMethods []*protocol.CompressionMethod
-	Extensions         []extension.Extension
-}
-
-const handshakeMessageClientHelloVariableWidthStart = 34
-
-// Type returns the Handshake Type
-func (m MessageClientHello) Type() Type {
-	return TypeClientHello
-}
-
-// Marshal encodes the Handshake
-func (m *MessageClientHello) Marshal() ([]byte, error) {
-	if len(m.Cookie) > 255 {
-		return nil, errCookieTooLong
-	}
-
-	out := make([]byte, handshakeMessageClientHelloVariableWidthStart)
-	out[0] = m.Version.Major
-	out[1] = m.Version.Minor
-
-	rand := m.Random.MarshalFixed()
-	copy(out[2:], rand[:])
-
-	out = append(out, 0x00) // SessionID
-
-	out = append(out, byte(len(m.Cookie)))
-	out = append(out, m.Cookie...)
-	out = append(out, encodeCipherSuiteIDs(m.CipherSuiteIDs)...)
-	out = append(out, protocol.EncodeCompressionMethods(m.CompressionMethods)...)
-
-	extensions, err := extension.Marshal(m.Extensions)
-	if err != nil {
-		return nil, err
-	}
-
-	return append(out, extensions...), nil
-}
-
-// Unmarshal populates the message from encoded data
-func (m *MessageClientHello) Unmarshal(data []byte) error {
-	if len(data) < 2+RandomLength {
-		return errBufferTooSmall
-	}
-
-	m.Version.Major = data[0]
-	m.Version.Minor = data[1]
-
-	var random [RandomLength]byte
-	copy(random[:], data[2:])
-	m.Random.UnmarshalFixed(random)
-
-	// rest of packet has variable width sections
-	currOffset := handshakeMessageClientHelloVariableWidthStart
-	currOffset += int(data[currOffset]) + 1 // SessionID
-
-	// TODO 添加SessionID
-	m.SessionID = data[handshakeMessageClientHelloVariableWidthStart+1 : currOffset]
-
-	currOffset++
-	if len(data) <= currOffset {
-		return errBufferTooSmall
-	}
-	n := int(data[currOffset-1])
-	if len(data) <= currOffset+n {
-		return errBufferTooSmall
-	}
-	m.Cookie = append([]byte{}, data[currOffset:currOffset+n]...)
-	currOffset += len(m.Cookie)
-
-	// Cipher Suites
-	if len(data) < currOffset {
-		return errBufferTooSmall
-	}
-	cipherSuiteIDs, err := decodeCipherSuiteIDs(data[currOffset:])
-	if err != nil {
-		return err
-	}
-	m.CipherSuiteIDs = cipherSuiteIDs
-	if len(data) < currOffset+2 {
-		return errBufferTooSmall
-	}
-	currOffset += int(binary.BigEndian.Uint16(data[currOffset:])) + 2
-
-	// Compression Methods
-	if len(data) < currOffset {
-		return errBufferTooSmall
-	}
-	compressionMethods, err := protocol.DecodeCompressionMethods(data[currOffset:])
-	if err != nil {
-		return err
-	}
-	m.CompressionMethods = compressionMethods
-	if len(data) < currOffset {
-		return errBufferTooSmall
-	}
-	currOffset += int(data[currOffset]) + 1
-
-	// Extensions
-	extensions, err := extension.Unmarshal(data[currOffset:])
-	if err != nil {
-		return err
-	}
-	m.Extensions = extensions
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_client_hello_test.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_client_hello_test.go
deleted file mode 100644
index bf75287..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_client_hello_test.go
+++ /dev/null
@@ -1,53 +0,0 @@
-package handshake
-
-import (
-	"reflect"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/extension"
-)
-
-func TestHandshakeMessageClientHello(t *testing.T) {
-	rawClientHello := []byte{
-		0xfe, 0xfd, 0xb6, 0x2f, 0xce, 0x5c, 0x42, 0x54, 0xff, 0x86, 0xe1, 0x24, 0x41, 0x91, 0x42,
-		0x62, 0x15, 0xad, 0x16, 0xc9, 0x15, 0x8d, 0x95, 0x71, 0x8a, 0xbb, 0x22, 0xd7, 0x47, 0xec,
-		0xd8, 0x3d, 0xdc, 0x4b, 0x00, 0x14, 0xe6, 0x14, 0x3a, 0x1b, 0x04, 0xea, 0x9e, 0x7a, 0x14,
-		0xd6, 0x6c, 0x57, 0xd0, 0x0e, 0x32, 0x85, 0x76, 0x18, 0xde, 0xd8, 0x00, 0x04, 0xc0, 0x2b,
-		0xc0, 0x0a, 0x01, 0x00, 0x00, 0x08, 0x00, 0x0a, 0x00, 0x04, 0x00, 0x02, 0x00, 0x1d,
-	}
-	parsedClientHello := &MessageClientHello{
-		Version: protocol.Version{Major: 0xFE, Minor: 0xFD},
-		Random: Random{
-			GMTUnixTime: time.Unix(3056586332, 0),
-			RandomBytes: [28]byte{0x42, 0x54, 0xff, 0x86, 0xe1, 0x24, 0x41, 0x91, 0x42, 0x62, 0x15, 0xad, 0x16, 0xc9, 0x15, 0x8d, 0x95, 0x71, 0x8a, 0xbb, 0x22, 0xd7, 0x47, 0xec, 0xd8, 0x3d, 0xdc, 0x4b},
-		},
-		Cookie: []byte{0xe6, 0x14, 0x3a, 0x1b, 0x04, 0xea, 0x9e, 0x7a, 0x14, 0xd6, 0x6c, 0x57, 0xd0, 0x0e, 0x32, 0x85, 0x76, 0x18, 0xde, 0xd8},
-		CipherSuiteIDs: []uint16{
-			0xc02b,
-			0xc00a,
-		},
-		CompressionMethods: []*protocol.CompressionMethod{
-			{},
-		},
-		Extensions: []extension.Extension{
-			&extension.SupportedEllipticCurves{EllipticCurves: []elliptic.Curve{elliptic.X25519}},
-		},
-	}
-
-	c := &MessageClientHello{}
-	if err := c.Unmarshal(rawClientHello); err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(c, parsedClientHello) {
-		t.Errorf("handshakeMessageClientHello unmarshal: got %#v, want %#v", c, parsedClientHello)
-	}
-
-	raw, err := c.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawClientHello) {
-		t.Errorf("handshakeMessageClientHello marshal: got %#v, want %#v", raw, rawClientHello)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_client_key_exchange.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_client_key_exchange.go
deleted file mode 100644
index f8fc369..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_client_key_exchange.go
+++ /dev/null
@@ -1,56 +0,0 @@
-package handshake
-
-import (
-	"encoding/binary"
-)
-
-// MessageClientKeyExchange is a DTLS Handshake Message
-// With this message, the premaster secret is set, either by direct
-// transmission of the RSA-encrypted secret or by the transmission of
-// Diffie-Hellman parameters that will allow each side to agree upon
-// the same premaster secret.
-//
-// https://tools.ietf.org/html/rfc5246#section-7.4.7
-type MessageClientKeyExchange struct {
-	IdentityHint []byte
-	PublicKey    []byte
-}
-
-// Type returns the Handshake Type
-func (m MessageClientKeyExchange) Type() Type {
-	return TypeClientKeyExchange
-}
-
-// Marshal encodes the Handshake
-func (m *MessageClientKeyExchange) Marshal() ([]byte, error) {
-	switch {
-	case (m.IdentityHint != nil && m.PublicKey != nil) || (m.IdentityHint == nil && m.PublicKey == nil):
-		return nil, errInvalidClientKeyExchange
-	case m.PublicKey != nil:
-		return append([]byte{byte(len(m.PublicKey))}, m.PublicKey...), nil
-	default:
-		out := append([]byte{0x00, 0x00}, m.IdentityHint...)
-		binary.BigEndian.PutUint16(out, uint16(len(out)-2))
-		return out, nil
-	}
-}
-
-// Unmarshal populates the message from encoded data
-func (m *MessageClientKeyExchange) Unmarshal(data []byte) error {
-	if len(data) < 2 {
-		return errBufferTooSmall
-	}
-
-	// If parsed as PSK return early and only populate PSK Identity Hint
-	if pskLength := binary.BigEndian.Uint16(data); len(data) == int(pskLength+2) {
-		m.IdentityHint = append([]byte{}, data[2:]...)
-		return nil
-	}
-
-	if publicKeyLength := int(data[0]); len(data) != publicKeyLength+1 {
-		return errBufferTooSmall
-	}
-
-	m.PublicKey = append([]byte{}, data[1:]...)
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_client_key_exchange_test.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_client_key_exchange_test.go
deleted file mode 100644
index d1b938a..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_client_key_exchange_test.go
+++ /dev/null
@@ -1,31 +0,0 @@
-package handshake
-
-import (
-	"reflect"
-	"testing"
-)
-
-func TestHandshakeMessageClientKeyExchange(t *testing.T) {
-	rawClientKeyExchange := []byte{
-		0x20, 0x26, 0x78, 0x4a, 0x78, 0x70, 0xc1, 0xf9, 0x71, 0xea, 0x50, 0x4a, 0xb5, 0xbb, 0x00, 0x76,
-		0x02, 0x05, 0xda, 0xf7, 0xd0, 0x3f, 0xe3, 0xf7, 0x4e, 0x8a, 0x14, 0x6f, 0xb7, 0xe0, 0xc0, 0xff,
-		0x54,
-	}
-	parsedClientKeyExchange := &MessageClientKeyExchange{
-		PublicKey: rawClientKeyExchange[1:],
-	}
-
-	c := &MessageClientKeyExchange{}
-	if err := c.Unmarshal(rawClientKeyExchange); err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(c, parsedClientKeyExchange) {
-		t.Errorf("handshakeMessageClientKeyExchange unmarshal: got %#v, want %#v", c, parsedClientKeyExchange)
-	}
-
-	raw, err := c.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawClientKeyExchange) {
-		t.Errorf("handshakeMessageClientKeyExchange marshal: got %#v, want %#v", raw, rawClientKeyExchange)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_finished.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_finished.go
deleted file mode 100644
index c65d42a..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_finished.go
+++ /dev/null
@@ -1,27 +0,0 @@
-package handshake
-
-// MessageFinished is a DTLS Handshake Message
-// this message is the first one protected with the just
-// negotiated algorithms, keys, and secrets.  Recipients of Finished
-// messages MUST verify that the contents are correct.
-//
-// https://tools.ietf.org/html/rfc5246#section-7.4.9
-type MessageFinished struct {
-	VerifyData []byte
-}
-
-// Type returns the Handshake Type
-func (m MessageFinished) Type() Type {
-	return TypeFinished
-}
-
-// Marshal encodes the Handshake
-func (m *MessageFinished) Marshal() ([]byte, error) {
-	return append([]byte{}, m.VerifyData...), nil
-}
-
-// Unmarshal populates the message from encoded data
-func (m *MessageFinished) Unmarshal(data []byte) error {
-	m.VerifyData = append([]byte{}, data...)
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_finished_test.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_finished_test.go
deleted file mode 100644
index bdc6564..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_finished_test.go
+++ /dev/null
@@ -1,29 +0,0 @@
-package handshake
-
-import (
-	"reflect"
-	"testing"
-)
-
-func TestHandshakeMessageFinished(t *testing.T) {
-	rawFinished := []byte{
-		0x01, 0x01, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
-	}
-	parsedFinished := &MessageFinished{
-		VerifyData: rawFinished,
-	}
-
-	c := &MessageFinished{}
-	if err := c.Unmarshal(rawFinished); err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(c, parsedFinished) {
-		t.Errorf("handshakeMessageFinished unmarshal: got %#v, want %#v", c, parsedFinished)
-	}
-
-	raw, err := c.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawFinished) {
-		t.Errorf("handshakeMessageFinished marshal: got %#v, want %#v", raw, rawFinished)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_hello_verify_request.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_hello_verify_request.go
deleted file mode 100644
index ef834dc..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_hello_verify_request.go
+++ /dev/null
@@ -1,62 +0,0 @@
-package handshake
-
-import (
-	"github.com/pion/dtls/v2/pkg/protocol"
-)
-
-// MessageHelloVerifyRequest is as follows:
-//
-//   struct {
-//     ProtocolVersion server_version;
-//     opaque cookie<0..2^8-1>;
-//   } HelloVerifyRequest;
-//
-//   The HelloVerifyRequest message type is hello_verify_request(3).
-//
-//   When the client sends its ClientHello message to the server, the server
-//   MAY respond with a HelloVerifyRequest message.  This message contains
-//   a stateless cookie generated using the technique of [PHOTURIS].  The
-//   client MUST retransmit the ClientHello with the cookie added.
-//
-//   https://tools.ietf.org/html/rfc6347#section-4.2.1
-type MessageHelloVerifyRequest struct {
-	Version protocol.Version
-	Cookie  []byte
-}
-
-// Type returns the Handshake Type
-func (m MessageHelloVerifyRequest) Type() Type {
-	return TypeHelloVerifyRequest
-}
-
-// Marshal encodes the Handshake
-func (m *MessageHelloVerifyRequest) Marshal() ([]byte, error) {
-	if len(m.Cookie) > 255 {
-		return nil, errCookieTooLong
-	}
-
-	out := make([]byte, 3+len(m.Cookie))
-	out[0] = m.Version.Major
-	out[1] = m.Version.Minor
-	out[2] = byte(len(m.Cookie))
-	copy(out[3:], m.Cookie)
-
-	return out, nil
-}
-
-// Unmarshal populates the message from encoded data
-func (m *MessageHelloVerifyRequest) Unmarshal(data []byte) error {
-	if len(data) < 3 {
-		return errBufferTooSmall
-	}
-	m.Version.Major = data[0]
-	m.Version.Minor = data[1]
-	cookieLength := data[2]
-	if len(data) < (int(cookieLength) + 3) {
-		return errBufferTooSmall
-	}
-	m.Cookie = make([]byte, cookieLength)
-
-	copy(m.Cookie, data[3:3+cookieLength])
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_hello_verify_request_test.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_hello_verify_request_test.go
deleted file mode 100644
index 0b15eee..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_hello_verify_request_test.go
+++ /dev/null
@@ -1,33 +0,0 @@
-package handshake
-
-import (
-	"reflect"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-)
-
-func TestHandshakeMessageHelloVerifyRequest(t *testing.T) {
-	rawHelloVerifyRequest := []byte{
-		0xfe, 0xff, 0x14, 0x25, 0xfb, 0xee, 0xb3, 0x7c, 0x95, 0xcf, 0x00,
-		0xeb, 0xad, 0xe2, 0xef, 0xc7, 0xfd, 0xbb, 0xed, 0xf7, 0x1f, 0x6c, 0xcd,
-	}
-	parsedHelloVerifyRequest := &MessageHelloVerifyRequest{
-		Version: protocol.Version{Major: 0xFE, Minor: 0xFF},
-		Cookie:  []byte{0x25, 0xfb, 0xee, 0xb3, 0x7c, 0x95, 0xcf, 0x00, 0xeb, 0xad, 0xe2, 0xef, 0xc7, 0xfd, 0xbb, 0xed, 0xf7, 0x1f, 0x6c, 0xcd},
-	}
-
-	h := &MessageHelloVerifyRequest{}
-	if err := h.Unmarshal(rawHelloVerifyRequest); err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(h, parsedHelloVerifyRequest) {
-		t.Errorf("handshakeMessageClientHello unmarshal: got %#v, want %#v", h, parsedHelloVerifyRequest)
-	}
-
-	raw, err := h.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawHelloVerifyRequest) {
-		t.Errorf("handshakeMessageClientHello marshal: got %#v, want %#v", raw, rawHelloVerifyRequest)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_hello.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_hello.go
deleted file mode 100644
index f21fb49..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_hello.go
+++ /dev/null
@@ -1,111 +0,0 @@
-package handshake
-
-import (
-	"encoding/binary"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/extension"
-)
-
-// MessageServerHello is sent in response to a ClientHello
-// message when it was able to find an acceptable set of algorithms.
-// If it cannot find such a match, it will respond with a handshake
-// failure alert.
-//
-// https://tools.ietf.org/html/rfc5246#section-7.4.1.3
-type MessageServerHello struct {
-	Version protocol.Version
-	Random  Random
-
-	SessionID []byte // TODO 添加anylink支持
-
-	CipherSuiteID     *uint16
-	CompressionMethod *protocol.CompressionMethod
-	Extensions        []extension.Extension
-}
-
-const messageServerHelloVariableWidthStart = 2 + RandomLength
-
-// Type returns the Handshake Type
-func (m MessageServerHello) Type() Type {
-	return TypeServerHello
-}
-
-// Marshal encodes the Handshake
-func (m *MessageServerHello) Marshal() ([]byte, error) {
-	if m.CipherSuiteID == nil {
-		return nil, errCipherSuiteUnset
-	} else if m.CompressionMethod == nil {
-		return nil, errCompressionMethodUnset
-	}
-
-	out := make([]byte, messageServerHelloVariableWidthStart)
-	out[0] = m.Version.Major
-	out[1] = m.Version.Minor
-
-	rand := m.Random.MarshalFixed()
-	copy(out[2:], rand[:])
-
-	// out = append(out, 0x00) // SessionID
-	// TODO 添加SessionID
-	out = append(out, byte(len(m.SessionID))) // SessionID
-	out = append(out, m.SessionID...)
-
-	out = append(out, []byte{0x00, 0x00}...)
-	binary.BigEndian.PutUint16(out[len(out)-2:], *m.CipherSuiteID)
-
-	out = append(out, byte(m.CompressionMethod.ID))
-
-	extensions, err := extension.Marshal(m.Extensions)
-	if err != nil {
-		return nil, err
-	}
-
-	return append(out, extensions...), nil
-}
-
-// Unmarshal populates the message from encoded data
-func (m *MessageServerHello) Unmarshal(data []byte) error {
-	if len(data) < 2+RandomLength {
-		return errBufferTooSmall
-	}
-
-	m.Version.Major = data[0]
-	m.Version.Minor = data[1]
-
-	var random [RandomLength]byte
-	copy(random[:], data[2:])
-	m.Random.UnmarshalFixed(random)
-
-	currOffset := messageServerHelloVariableWidthStart
-	currOffset += int(data[currOffset]) + 1 // SessionID
-	if len(data) < (currOffset + 2) {
-		return errBufferTooSmall
-	}
-
-	m.CipherSuiteID = new(uint16)
-	*m.CipherSuiteID = binary.BigEndian.Uint16(data[currOffset:])
-	currOffset += 2
-
-	if len(data) < currOffset {
-		return errBufferTooSmall
-	}
-	if compressionMethod, ok := protocol.CompressionMethods()[protocol.CompressionMethodID(data[currOffset])]; ok {
-		m.CompressionMethod = compressionMethod
-		currOffset++
-	} else {
-		return errInvalidCompressionMethod
-	}
-
-	if len(data) <= currOffset {
-		m.Extensions = []extension.Extension{}
-		return nil
-	}
-
-	extensions, err := extension.Unmarshal(data[currOffset:])
-	if err != nil {
-		return err
-	}
-	m.Extensions = extensions
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_hello_done.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_hello_done.go
deleted file mode 100644
index a004802..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_hello_done.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package handshake
-
-// MessageServerHelloDone is final non-encrypted message from server
-// this communicates server has sent all its handshake messages and next
-// should be MessageFinished
-type MessageServerHelloDone struct {
-}
-
-// Type returns the Handshake Type
-func (m MessageServerHelloDone) Type() Type {
-	return TypeServerHelloDone
-}
-
-// Marshal encodes the Handshake
-func (m *MessageServerHelloDone) Marshal() ([]byte, error) {
-	return []byte{}, nil
-}
-
-// Unmarshal populates the message from encoded data
-func (m *MessageServerHelloDone) Unmarshal(data []byte) error {
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_hello_done_test.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_hello_done_test.go
deleted file mode 100644
index a9043e3..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_hello_done_test.go
+++ /dev/null
@@ -1,25 +0,0 @@
-package handshake
-
-import (
-	"reflect"
-	"testing"
-)
-
-func TestHandshakeMessageServerHelloDone(t *testing.T) {
-	rawServerHelloDone := []byte{}
-	parsedServerHelloDone := &MessageServerHelloDone{}
-
-	c := &MessageServerHelloDone{}
-	if err := c.Unmarshal(rawServerHelloDone); err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(c, parsedServerHelloDone) {
-		t.Errorf("handshakeMessageServerHelloDone unmarshal: got %#v, want %#v", c, parsedServerHelloDone)
-	}
-
-	raw, err := c.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawServerHelloDone) {
-		t.Errorf("handshakeMessageServerHelloDone marshal: got %#v, want %#v", raw, rawServerHelloDone)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_hello_test.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_hello_test.go
deleted file mode 100644
index 99e7f05..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_hello_test.go
+++ /dev/null
@@ -1,46 +0,0 @@
-package handshake
-
-import (
-	"reflect"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/extension"
-)
-
-func TestHandshakeMessageServerHello(t *testing.T) {
-	rawServerHello := []byte{
-		0xfe, 0xfd, 0x21, 0x63, 0x32, 0x21, 0x81, 0x0e, 0x98, 0x6c,
-		0x85, 0x3d, 0xa4, 0x39, 0xaf, 0x5f, 0xd6, 0x5c, 0xcc, 0x20,
-		0x7f, 0x7c, 0x78, 0xf1, 0x5f, 0x7e, 0x1c, 0xb7, 0xa1, 0x1e,
-		0xcf, 0x63, 0x84, 0x28, 0x00, 0xc0, 0x2b, 0x00, 0x00, 0x00,
-	}
-
-	cipherSuiteID := uint16(0xc02b)
-
-	parsedServerHello := &MessageServerHello{
-		Version: protocol.Version{Major: 0xFE, Minor: 0xFD},
-		Random: Random{
-			GMTUnixTime: time.Unix(560149025, 0),
-			RandomBytes: [28]byte{0x81, 0x0e, 0x98, 0x6c, 0x85, 0x3d, 0xa4, 0x39, 0xaf, 0x5f, 0xd6, 0x5c, 0xcc, 0x20, 0x7f, 0x7c, 0x78, 0xf1, 0x5f, 0x7e, 0x1c, 0xb7, 0xa1, 0x1e, 0xcf, 0x63, 0x84, 0x28},
-		},
-		CipherSuiteID:     &cipherSuiteID,
-		CompressionMethod: &protocol.CompressionMethod{},
-		Extensions:        []extension.Extension{},
-	}
-
-	c := &MessageServerHello{}
-	if err := c.Unmarshal(rawServerHello); err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(c, parsedServerHello) {
-		t.Errorf("handshakeMessageServerHello unmarshal: got %#v, want %#v", c, parsedServerHello)
-	}
-
-	raw, err := c.Marshal()
-	if err != nil {
-		t.Error(err)
-	} else if !reflect.DeepEqual(raw, rawServerHello) {
-		t.Errorf("handshakeMessageServerHello marshal: got %#v, want %#v", raw, rawServerHello)
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_key_exchange.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_key_exchange.go
deleted file mode 100644
index 4148fe0..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_key_exchange.go
+++ /dev/null
@@ -1,119 +0,0 @@
-package handshake
-
-import (
-	"encoding/binary"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-	"github.com/pion/dtls/v2/pkg/crypto/signature"
-)
-
-// MessageServerKeyExchange supports ECDH and PSK
-type MessageServerKeyExchange struct {
-	IdentityHint []byte
-
-	EllipticCurveType  elliptic.CurveType
-	NamedCurve         elliptic.Curve
-	PublicKey          []byte
-	HashAlgorithm      hash.Algorithm
-	SignatureAlgorithm signature.Algorithm
-	Signature          []byte
-}
-
-// Type returns the Handshake Type
-func (m MessageServerKeyExchange) Type() Type {
-	return TypeServerKeyExchange
-}
-
-// Marshal encodes the Handshake
-func (m *MessageServerKeyExchange) Marshal() ([]byte, error) {
-	if m.IdentityHint != nil {
-		out := append([]byte{0x00, 0x00}, m.IdentityHint...)
-		binary.BigEndian.PutUint16(out, uint16(len(out)-2))
-		return out, nil
-	}
-
-	out := []byte{byte(m.EllipticCurveType), 0x00, 0x00}
-	binary.BigEndian.PutUint16(out[1:], uint16(m.NamedCurve))
-
-	out = append(out, byte(len(m.PublicKey)))
-	out = append(out, m.PublicKey...)
-
-	if m.HashAlgorithm == hash.None && m.SignatureAlgorithm == signature.Anonymous && len(m.Signature) == 0 {
-		return out, nil
-	}
-
-	out = append(out, []byte{byte(m.HashAlgorithm), byte(m.SignatureAlgorithm), 0x00, 0x00}...)
-	binary.BigEndian.PutUint16(out[len(out)-2:], uint16(len(m.Signature)))
-	out = append(out, m.Signature...)
-
-	return out, nil
-}
-
-// Unmarshal populates the message from encoded data
-func (m *MessageServerKeyExchange) Unmarshal(data []byte) error {
-	if len(data) < 2 {
-		return errBufferTooSmall
-	}
-
-	// If parsed as PSK return early and only populate PSK Identity Hint
-	if pskLength := binary.BigEndian.Uint16(data); len(data) == int(pskLength+2) {
-		m.IdentityHint = append([]byte{}, data[2:]...)
-		return nil
-	}
-
-	if _, ok := elliptic.CurveTypes()[elliptic.CurveType(data[0])]; ok {
-		m.EllipticCurveType = elliptic.CurveType(data[0])
-	} else {
-		return errInvalidEllipticCurveType
-	}
-
-	if len(data[1:]) < 2 {
-		return errBufferTooSmall
-	}
-	m.NamedCurve = elliptic.Curve(binary.BigEndian.Uint16(data[1:3]))
-	if _, ok := elliptic.Curves()[m.NamedCurve]; !ok {
-		return errInvalidNamedCurve
-	}
-	if len(data) < 4 {
-		return errBufferTooSmall
-	}
-
-	publicKeyLength := int(data[3])
-	offset := 4 + publicKeyLength
-	if len(data) < offset {
-		return errBufferTooSmall
-	}
-	m.PublicKey = append([]byte{}, data[4:offset]...)
-
-	// Anon connection doesn't contains hashAlgorithm, signatureAlgorithm, signature
-	if len(data) == offset {
-		return nil
-	} else if len(data) <= offset {
-		return errBufferTooSmall
-	}
-
-	m.HashAlgorithm = hash.Algorithm(data[offset])
-	if _, ok := hash.Algorithms()[m.HashAlgorithm]; !ok {
-		return errInvalidHashAlgorithm
-	}
-	offset++
-	if len(data) <= offset {
-		return errBufferTooSmall
-	}
-	m.SignatureAlgorithm = signature.Algorithm(data[offset])
-	if _, ok := signature.Algorithms()[m.SignatureAlgorithm]; !ok {
-		return errInvalidSignatureAlgorithm
-	}
-	offset++
-	if len(data) < offset+2 {
-		return errBufferTooSmall
-	}
-	signatureLength := int(binary.BigEndian.Uint16(data[offset:]))
-	offset += 2
-	if len(data) < offset+signatureLength {
-		return errBufferTooSmall
-	}
-	m.Signature = append([]byte{}, data[offset:offset+signatureLength]...)
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_key_exchange_test.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_key_exchange_test.go
deleted file mode 100644
index dfe7d1f..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/message_server_key_exchange_test.go
+++ /dev/null
@@ -1,71 +0,0 @@
-package handshake
-
-import (
-	"reflect"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-	"github.com/pion/dtls/v2/pkg/crypto/hash"
-	"github.com/pion/dtls/v2/pkg/crypto/signature"
-)
-
-func TestHandshakeMessageServerKeyExchange(t *testing.T) {
-	test := func(rawServerKeyExchange []byte, parsedServerKeyExchange *MessageServerKeyExchange) {
-		c := &MessageServerKeyExchange{}
-		if err := c.Unmarshal(rawServerKeyExchange); err != nil {
-			t.Error(err)
-		} else if !reflect.DeepEqual(c, parsedServerKeyExchange) {
-			t.Errorf("handshakeMessageServerKeyExchange unmarshal: got %#v, want %#v", c, parsedServerKeyExchange)
-		}
-
-		raw, err := c.Marshal()
-		if err != nil {
-			t.Error(err)
-		} else if !reflect.DeepEqual(raw, rawServerKeyExchange) {
-			t.Errorf("handshakeMessageServerKeyExchange marshal: got %#v, want %#v", raw, rawServerKeyExchange)
-		}
-	}
-
-	t.Run("Hash+Signature", func(t *testing.T) {
-		rawServerKeyExchange := []byte{
-			0x03, 0x00, 0x1d, 0x41, 0x04, 0x0c, 0xb9, 0xa3, 0xb9, 0x90, 0x71, 0x35, 0x4a, 0x08, 0x66, 0xaf,
-			0xd6, 0x88, 0x58, 0x29, 0x69, 0x98, 0xf1, 0x87, 0x0f, 0xb5, 0xa8, 0xcd, 0x92, 0xf6, 0x2b, 0x08,
-			0x0c, 0xd4, 0x16, 0x5b, 0xcc, 0x81, 0xf2, 0x58, 0x91, 0x8e, 0x62, 0xdf, 0xc1, 0xec, 0x72, 0xe8,
-			0x47, 0x24, 0x42, 0x96, 0xb8, 0x7b, 0xee, 0xe7, 0x0d, 0xdc, 0x44, 0xec, 0xf3, 0x97, 0x6b, 0x1b,
-			0x45, 0x28, 0xac, 0x3f, 0x35, 0x02, 0x03, 0x00, 0x47, 0x30, 0x45, 0x02, 0x21, 0x00, 0xb2, 0x0b,
-			0x22, 0x95, 0x3d, 0x56, 0x57, 0x6a, 0x3f, 0x85, 0x30, 0x6f, 0x55, 0xc3, 0xf4, 0x24, 0x1b, 0x21,
-			0x07, 0xe5, 0xdf, 0xba, 0x24, 0x02, 0x68, 0x95, 0x1f, 0x6e, 0x13, 0xbd, 0x9f, 0xaa, 0x02, 0x20,
-			0x49, 0x9c, 0x9d, 0xdf, 0x84, 0x60, 0x33, 0x27, 0x96, 0x9e, 0x58, 0x6d, 0x72, 0x13, 0xe7, 0x3a,
-			0xe8, 0xdf, 0x43, 0x75, 0xc7, 0xb9, 0x37, 0x6e, 0x90, 0xe5, 0x3b, 0x81, 0xd4, 0xda, 0x68, 0xcd,
-		}
-		parsedServerKeyExchange := &MessageServerKeyExchange{
-			EllipticCurveType:  elliptic.CurveTypeNamedCurve,
-			NamedCurve:         elliptic.X25519,
-			PublicKey:          rawServerKeyExchange[4:69],
-			HashAlgorithm:      hash.SHA1,
-			SignatureAlgorithm: signature.ECDSA,
-			Signature:          rawServerKeyExchange[73:144],
-		}
-
-		test(rawServerKeyExchange, parsedServerKeyExchange)
-	})
-
-	t.Run("Anonymous", func(t *testing.T) {
-		rawServerKeyExchange := []byte{
-			0x03, 0x00, 0x1d, 0x41, 0x04, 0x0c, 0xb9, 0xa3, 0xb9, 0x90, 0x71, 0x35, 0x4a, 0x08, 0x66, 0xaf,
-			0xd6, 0x88, 0x58, 0x29, 0x69, 0x98, 0xf1, 0x87, 0x0f, 0xb5, 0xa8, 0xcd, 0x92, 0xf6, 0x2b, 0x08,
-			0x0c, 0xd4, 0x16, 0x5b, 0xcc, 0x81, 0xf2, 0x58, 0x91, 0x8e, 0x62, 0xdf, 0xc1, 0xec, 0x72, 0xe8,
-			0x47, 0x24, 0x42, 0x96, 0xb8, 0x7b, 0xee, 0xe7, 0x0d, 0xdc, 0x44, 0xec, 0xf3, 0x97, 0x6b, 0x1b,
-			0x45, 0x28, 0xac, 0x3f, 0x35,
-		}
-		parsedServerKeyExchange := &MessageServerKeyExchange{
-			EllipticCurveType:  elliptic.CurveTypeNamedCurve,
-			NamedCurve:         elliptic.X25519,
-			PublicKey:          rawServerKeyExchange[4:69],
-			HashAlgorithm:      hash.None,
-			SignatureAlgorithm: signature.Anonymous,
-		}
-
-		test(rawServerKeyExchange, parsedServerKeyExchange)
-	})
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/handshake/random.go b/anylink/dtls-2.0.9/pkg/protocol/handshake/random.go
deleted file mode 100644
index 0ade936..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/handshake/random.go
+++ /dev/null
@@ -1,49 +0,0 @@
-package handshake
-
-import (
-	"crypto/rand"
-	"encoding/binary"
-	"time"
-)
-
-// Consts for Random in Handshake
-const (
-	RandomBytesLength = 28
-	RandomLength      = RandomBytesLength + 4
-)
-
-// Random value that is used in ClientHello and ServerHello
-//
-// https://tools.ietf.org/html/rfc4346#section-7.4.1.2
-type Random struct {
-	GMTUnixTime time.Time
-	RandomBytes [RandomBytesLength]byte
-}
-
-// MarshalFixed encodes the Handshake
-func (r *Random) MarshalFixed() [RandomLength]byte {
-	var out [RandomLength]byte
-
-	binary.BigEndian.PutUint32(out[0:], uint32(r.GMTUnixTime.Unix()))
-	copy(out[4:], r.RandomBytes[:])
-
-	return out
-}
-
-// UnmarshalFixed populates the message from encoded data
-func (r *Random) UnmarshalFixed(data [RandomLength]byte) {
-	r.GMTUnixTime = time.Unix(int64(binary.BigEndian.Uint32(data[0:])), 0)
-	copy(r.RandomBytes[:], data[4:])
-}
-
-// Populate fills the handshakeRandom with random values
-// may be called multiple times
-func (r *Random) Populate() error {
-	r.GMTUnixTime = time.Now()
-
-	tmp := make([]byte, RandomBytesLength)
-	_, err := rand.Read(tmp)
-	copy(r.RandomBytes[:], tmp)
-
-	return err
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/recordlayer/errors.go b/anylink/dtls-2.0.9/pkg/protocol/recordlayer/errors.go
deleted file mode 100644
index 7033d40..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/recordlayer/errors.go
+++ /dev/null
@@ -1,16 +0,0 @@
-// Package recordlayer implements the TLS Record Layer https://tools.ietf.org/html/rfc5246#section-6
-package recordlayer
-
-import (
-	"errors"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-)
-
-var (
-	errBufferTooSmall             = &protocol.TemporaryError{Err: errors.New("buffer is too small")}                            //nolint:goerr113
-	errInvalidPacketLength        = &protocol.TemporaryError{Err: errors.New("packet length and declared length do not match")} //nolint:goerr113
-	errSequenceNumberOverflow     = &protocol.InternalError{Err: errors.New("sequence number overflow")}                        //nolint:goerr113
-	errUnsupportedProtocolVersion = &protocol.FatalError{Err: errors.New("unsupported protocol version")}                       //nolint:goerr113
-	errInvalidContentType         = &protocol.TemporaryError{Err: errors.New("invalid content type")}                           //nolint:goerr113
-)
diff --git a/anylink/dtls-2.0.9/pkg/protocol/recordlayer/header.go b/anylink/dtls-2.0.9/pkg/protocol/recordlayer/header.go
deleted file mode 100644
index 65047d7..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/recordlayer/header.go
+++ /dev/null
@@ -1,61 +0,0 @@
-package recordlayer
-
-import (
-	"encoding/binary"
-
-	"github.com/pion/dtls/v2/internal/util"
-	"github.com/pion/dtls/v2/pkg/protocol"
-)
-
-// Header implements a TLS RecordLayer header
-type Header struct {
-	ContentType    protocol.ContentType
-	ContentLen     uint16
-	Version        protocol.Version
-	Epoch          uint16
-	SequenceNumber uint64 // uint48 in spec
-}
-
-// RecordLayer enums
-const (
-	HeaderSize        = 13
-	MaxSequenceNumber = 0x0000FFFFFFFFFFFF
-)
-
-// Marshal encodes a TLS RecordLayer Header to binary
-func (h *Header) Marshal() ([]byte, error) {
-	if h.SequenceNumber > MaxSequenceNumber {
-		return nil, errSequenceNumberOverflow
-	}
-
-	out := make([]byte, HeaderSize)
-	out[0] = byte(h.ContentType)
-	out[1] = h.Version.Major
-	out[2] = h.Version.Minor
-	binary.BigEndian.PutUint16(out[3:], h.Epoch)
-	util.PutBigEndianUint48(out[5:], h.SequenceNumber)
-	binary.BigEndian.PutUint16(out[HeaderSize-2:], h.ContentLen)
-	return out, nil
-}
-
-// Unmarshal populates a TLS RecordLayer Header from binary
-func (h *Header) Unmarshal(data []byte) error {
-	if len(data) < HeaderSize {
-		return errBufferTooSmall
-	}
-	h.ContentType = protocol.ContentType(data[0])
-	h.Version.Major = data[1]
-	h.Version.Minor = data[2]
-	h.Epoch = binary.BigEndian.Uint16(data[3:])
-
-	// SequenceNumber is stored as uint48, make into uint64
-	seqCopy := make([]byte, 8)
-	copy(seqCopy[2:], data[5:11])
-	h.SequenceNumber = binary.BigEndian.Uint64(seqCopy)
-
-	if !h.Version.Equal(protocol.Version1_0) && !h.Version.Equal(protocol.Version1_2) {
-		return errUnsupportedProtocolVersion
-	}
-
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/recordlayer/recordlayer.go b/anylink/dtls-2.0.9/pkg/protocol/recordlayer/recordlayer.go
deleted file mode 100644
index 67e5a72..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/recordlayer/recordlayer.go
+++ /dev/null
@@ -1,99 +0,0 @@
-package recordlayer
-
-import (
-	"encoding/binary"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-	"github.com/pion/dtls/v2/pkg/protocol/alert"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-)
-
-// RecordLayer which handles all data transport.
-// The record layer is assumed to sit directly on top of some
-// reliable transport such as TCP. The record layer can carry four types of content:
-//
-// 1. Handshake messages—used for algorithm negotiation and key establishment.
-// 2. ChangeCipherSpec messages—really part of the handshake but technically a separate kind of message.
-// 3. Alert messages—used to signal that errors have occurred
-// 4. Application layer data
-//
-// The DTLS record layer is extremely similar to that of TLS 1.1.  The
-// only change is the inclusion of an explicit sequence number in the
-// record.  This sequence number allows the recipient to correctly
-// verify the TLS MAC.
-//
-// https://tools.ietf.org/html/rfc4347#section-4.1
-type RecordLayer struct {
-	Header  Header
-	Content protocol.Content
-}
-
-// Marshal encodes the RecordLayer to binary
-func (r *RecordLayer) Marshal() ([]byte, error) {
-	contentRaw, err := r.Content.Marshal()
-	if err != nil {
-		return nil, err
-	}
-
-	r.Header.ContentLen = uint16(len(contentRaw))
-	r.Header.ContentType = r.Content.ContentType()
-
-	headerRaw, err := r.Header.Marshal()
-	if err != nil {
-		return nil, err
-	}
-
-	return append(headerRaw, contentRaw...), nil
-}
-
-// Unmarshal populates the RecordLayer from binary
-func (r *RecordLayer) Unmarshal(data []byte) error {
-	if len(data) < HeaderSize {
-		return errBufferTooSmall
-	}
-	if err := r.Header.Unmarshal(data); err != nil {
-		return err
-	}
-
-	switch protocol.ContentType(data[0]) {
-	case protocol.ContentTypeChangeCipherSpec:
-		r.Content = &protocol.ChangeCipherSpec{}
-	case protocol.ContentTypeAlert:
-		r.Content = &alert.Alert{}
-	case protocol.ContentTypeHandshake:
-		r.Content = &handshake.Handshake{}
-	case protocol.ContentTypeApplicationData:
-		r.Content = &protocol.ApplicationData{}
-	default:
-		return errInvalidContentType
-	}
-
-	return r.Content.Unmarshal(data[HeaderSize:])
-}
-
-// UnpackDatagram extracts all RecordLayer messages from a single datagram.
-// Note that as with TLS, multiple handshake messages may be placed in
-// the same DTLS record, provided that there is room and that they are
-// part of the same flight.  Thus, there are two acceptable ways to pack
-// two DTLS messages into the same datagram: in the same record or in
-// separate records.
-// https://tools.ietf.org/html/rfc6347#section-4.2.3
-func UnpackDatagram(buf []byte) ([][]byte, error) {
-	out := [][]byte{}
-
-	for offset := 0; len(buf) != offset; {
-		if len(buf)-offset <= HeaderSize {
-			return nil, errInvalidPacketLength
-		}
-
-		pktLen := (HeaderSize + int(binary.BigEndian.Uint16(buf[offset+11:])))
-		if offset+pktLen > len(buf) {
-			return nil, errInvalidPacketLength
-		}
-
-		out = append(out, buf[offset:offset+pktLen])
-		offset += pktLen
-	}
-
-	return out, nil
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/recordlayer/recordlayer_test.go b/anylink/dtls-2.0.9/pkg/protocol/recordlayer/recordlayer_test.go
deleted file mode 100644
index fed9731..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/recordlayer/recordlayer_test.go
+++ /dev/null
@@ -1,92 +0,0 @@
-package recordlayer
-
-import (
-	"errors"
-	"reflect"
-	"testing"
-
-	"github.com/pion/dtls/v2/pkg/protocol"
-)
-
-func TestUDPDecode(t *testing.T) {
-	for _, test := range []struct {
-		Name      string
-		Data      []byte
-		Want      [][]byte
-		WantError error
-	}{
-		{
-			Name: "Change Cipher Spec, single packet",
-			Data: []byte{0x14, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x01, 0x01},
-			Want: [][]byte{
-				{0x14, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x01, 0x01},
-			},
-		},
-		{
-			Name: "Change Cipher Spec, multi packet",
-			Data: []byte{
-				0x14, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x01, 0x01,
-				0x14, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x01, 0x01,
-			},
-			Want: [][]byte{
-				{0x14, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x01, 0x01},
-				{0x14, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x01, 0x01},
-			},
-		},
-		{
-			Name:      "Invalid packet length",
-			Data:      []byte{0x14, 0xfe},
-			WantError: errInvalidPacketLength,
-		},
-		{
-			Name:      "Packet declared invalid length",
-			Data:      []byte{0x14, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0xFF, 0x01},
-			WantError: errInvalidPacketLength,
-		},
-	} {
-		dtlsPkts, err := UnpackDatagram(test.Data)
-		if !errors.Is(err, test.WantError) {
-			t.Errorf("Unexpected Error %q: exp: %v got: %v", test.Name, test.WantError, err)
-		} else if !reflect.DeepEqual(test.Want, dtlsPkts) {
-			t.Errorf("%q UDP decode: got %q, want %q", test.Name, dtlsPkts, test.Want)
-		}
-	}
-}
-
-func TestRecordLayerRoundTrip(t *testing.T) {
-	for _, test := range []struct {
-		Name               string
-		Data               []byte
-		Want               *RecordLayer
-		WantMarshalError   error
-		WantUnmarshalError error
-	}{
-		{
-			Name: "Change Cipher Spec, single packet",
-			Data: []byte{0x14, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x01, 0x01},
-			Want: &RecordLayer{
-				Header: Header{
-					ContentType:    protocol.ContentTypeChangeCipherSpec,
-					Version:        protocol.Version{Major: 0xfe, Minor: 0xff},
-					Epoch:          0,
-					SequenceNumber: 18,
-				},
-				Content: &protocol.ChangeCipherSpec{},
-			},
-		},
-	} {
-		r := &RecordLayer{}
-		if err := r.Unmarshal(test.Data); !errors.Is(err, test.WantUnmarshalError) {
-			t.Errorf("Unexpected Error %q: exp: %v got: %v", test.Name, test.WantUnmarshalError, err)
-		} else if !reflect.DeepEqual(test.Want, r) {
-			t.Errorf("%q recordLayer.unmarshal: got %q, want %q", test.Name, r, test.Want)
-		}
-
-		data, marshalErr := r.Marshal()
-		if !errors.Is(marshalErr, test.WantMarshalError) {
-			t.Errorf("Unexpected Error %q: exp: %v got: %v", test.Name, test.WantMarshalError, marshalErr)
-		} else if !reflect.DeepEqual(test.Data, data) {
-			t.Errorf("%q recordLayer.marshal: got % 02x, want % 02x", test.Name, data, test.Data)
-		}
-	}
-}
diff --git a/anylink/dtls-2.0.9/pkg/protocol/version.go b/anylink/dtls-2.0.9/pkg/protocol/version.go
deleted file mode 100644
index d5ddb1d..0000000
--- a/anylink/dtls-2.0.9/pkg/protocol/version.go
+++ /dev/null
@@ -1,21 +0,0 @@
-// Package protocol provides the DTLS wire format
-package protocol
-
-// Version enums
-var (
-	Version1_0 = Version{Major: 0xfe, Minor: 0xff} //nolint:gochecknoglobals
-	Version1_2 = Version{Major: 0xfe, Minor: 0xfd} //nolint:gochecknoglobals
-)
-
-// Version is the minor/major value in the RecordLayer
-// and ClientHello/ServerHello
-//
-// https://tools.ietf.org/html/rfc4346#section-6.2.1
-type Version struct {
-	Major, Minor uint8
-}
-
-// Equal determines if two protocol versions are equal
-func (v Version) Equal(x Version) bool {
-	return v.Major == x.Major && v.Minor == x.Minor
-}
diff --git a/anylink/dtls-2.0.9/renovate.json b/anylink/dtls-2.0.9/renovate.json
deleted file mode 100644
index f84608c..0000000
--- a/anylink/dtls-2.0.9/renovate.json
+++ /dev/null
@@ -1,19 +0,0 @@
-{
-  "extends": [
-    "config:base"
-  ],
-  "postUpdateOptions": [
-    "gomodTidy"
-  ],
-  "commitBody": "Generated by renovateBot",
-  "packageRules": [
-    {
-      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
-      "automerge": true
-    },
-    {
-      "packagePatterns": ["^golang.org/x/"],
-      "schedule": ["on the first day of the month"]
-    }
-  ]
-}
diff --git a/anylink/dtls-2.0.9/replayprotection_test.go b/anylink/dtls-2.0.9/replayprotection_test.go
deleted file mode 100644
index 3175895..0000000
--- a/anylink/dtls-2.0.9/replayprotection_test.go
+++ /dev/null
@@ -1,139 +0,0 @@
-package dtls
-
-import (
-	"context"
-	"net"
-	"reflect"
-	"sync"
-	"sync/atomic"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2/internal/net/dpipe"
-	"github.com/pion/transport/test"
-)
-
-func TestReplayProtection(t *testing.T) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(5 * time.Second)
-	defer lim.Stop()
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	c0, c1 := dpipe.Pipe()
-	c2, c3 := dpipe.Pipe()
-	conn := []net.Conn{c0, c1, c2, c3}
-
-	var wgRoutines sync.WaitGroup
-	var cntReplays int32 = 1
-
-	ctxReplayDone, replayDone := context.WithCancel(context.Background())
-
-	replaySendDone := func() {
-		cnt := atomic.AddInt32(&cntReplays, -1)
-		if cnt == 0 {
-			replayDone()
-		}
-	}
-
-	replayer := func(ca, cb net.Conn) {
-		defer wgRoutines.Done()
-		// Man in the middle
-		for {
-			b := make([]byte, 2048)
-			n, rerr := ca.Read(b)
-			if rerr != nil {
-				return
-			}
-			if _, werr := cb.Write(b[:n]); werr != nil {
-				t.Error(werr)
-				return
-			}
-
-			atomic.AddInt32(&cntReplays, 1)
-			go func() {
-				defer replaySendDone()
-				// Replay bit later
-				time.Sleep(time.Millisecond)
-				if _, werr := cb.Write(b[:n]); werr != nil {
-					t.Error(werr)
-				}
-			}()
-		}
-	}
-	wgRoutines.Add(2)
-	go replayer(conn[1], conn[2])
-	go replayer(conn[2], conn[1])
-
-	ca, cb, err := pipeConn(conn[0], conn[3])
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	const numMsgs = 10
-
-	var received [2][][]byte
-	for i, c := range []net.Conn{ca, cb} {
-		i := i
-		c := c
-		wgRoutines.Add(1)
-		atomic.AddInt32(&cntReplays, 1) // Keep locked until the final message
-		var lastMsgDone sync.Once
-		go func() {
-			defer wgRoutines.Done()
-			for {
-				b := make([]byte, 2048)
-				n, rerr := c.Read(b)
-				if rerr != nil {
-					return
-				}
-				received[i] = append(received[i], b[:n])
-				if b[0] == numMsgs-1 {
-					// Final message received
-					lastMsgDone.Do(func() {
-						defer replaySendDone()
-					})
-				}
-			}
-		}()
-	}
-
-	var sent [][]byte
-	for i := 0; i < numMsgs; i++ {
-		data := []byte{byte(i)}
-		sent = append(sent, data)
-		if _, werr := ca.Write(data); werr != nil {
-			t.Error(werr)
-			return
-		}
-		if _, werr := cb.Write(data); werr != nil {
-			t.Error(werr)
-			return
-		}
-	}
-
-	replaySendDone()
-	<-ctxReplayDone.Done()
-	time.Sleep(10 * time.Millisecond) // Ensure all replayed packets are sent
-
-	for i := 0; i < 4; i++ {
-		if err := conn[i].Close(); err != nil {
-			t.Error(err)
-		}
-	}
-	if err := ca.Close(); err != nil {
-		t.Error(err)
-	}
-	if err := cb.Close(); err != nil {
-		t.Error(err)
-	}
-	wgRoutines.Wait()
-
-	for _, r := range received {
-		if !reflect.DeepEqual(sent, r) {
-			t.Errorf("Received data differs, expected: %v, got: %v", sent, r)
-		}
-	}
-}
diff --git a/anylink/dtls-2.0.9/resume.go b/anylink/dtls-2.0.9/resume.go
deleted file mode 100644
index 40e55e4..0000000
--- a/anylink/dtls-2.0.9/resume.go
+++ /dev/null
@@ -1,19 +0,0 @@
-package dtls
-
-import (
-	"context"
-	"net"
-)
-
-// Resume imports an already established dtls connection using a specific dtls state
-func Resume(state *State, conn net.Conn, config *Config) (*Conn, error) {
-	if err := state.initCipherSuite(); err != nil {
-		return nil, err
-	}
-	c, err := createConn(context.Background(), conn, config, state.isClient, state)
-	if err != nil {
-		return nil, err
-	}
-
-	return c, nil
-}
diff --git a/anylink/dtls-2.0.9/resume_test.go b/anylink/dtls-2.0.9/resume_test.go
deleted file mode 100644
index cad3d2d..0000000
--- a/anylink/dtls-2.0.9/resume_test.go
+++ /dev/null
@@ -1,208 +0,0 @@
-package dtls
-
-import (
-	"bytes"
-	"crypto/tls"
-	"errors"
-	"fmt"
-	"net"
-	"sync"
-	"testing"
-	"time"
-
-	"github.com/pion/dtls/v2/pkg/crypto/selfsign"
-	"github.com/pion/transport/test"
-)
-
-var errMessageMissmatch = errors.New("messages missmatch")
-
-func TestResumeClient(t *testing.T) {
-	DoTestResume(t, Client, Server)
-}
-
-func TestResumeServer(t *testing.T) {
-	DoTestResume(t, Server, Client)
-}
-
-func fatal(t *testing.T, errChan chan error, err error) {
-	close(errChan)
-	t.Fatal(err)
-}
-
-func DoTestResume(t *testing.T, newLocal, newRemote func(net.Conn, *Config) (*Conn, error)) {
-	// Limit runtime in case of deadlocks
-	lim := test.TimeOut(time.Second * 20)
-	defer lim.Stop()
-
-	// Check for leaking routines
-	report := test.CheckRoutines(t)
-	defer report()
-
-	certificate, err := selfsign.GenerateSelfSigned()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Generate connections
-	localConn1, rc1 := net.Pipe()
-	localConn2, rc2 := net.Pipe()
-	remoteConn := &backupConn{curr: rc1, next: rc2}
-
-	// Launch remote in another goroutine
-	errChan := make(chan error, 1)
-	defer func() {
-		err = <-errChan
-		if err != nil {
-			t.Fatal(err)
-		}
-	}()
-	config := &Config{
-		Certificates:         []tls.Certificate{certificate},
-		InsecureSkipVerify:   true,
-		ExtendedMasterSecret: RequireExtendedMasterSecret,
-	}
-	go func() {
-		var remote *Conn
-		var errR error
-		remote, errR = newRemote(remoteConn, config)
-		if errR != nil {
-			errChan <- errR
-		}
-
-		// Loop of read write
-		for i := 0; i < 2; i++ {
-			recv := make([]byte, 1024)
-			var n int
-			n, errR = remote.Read(recv)
-			if errR != nil {
-				errChan <- errR
-			}
-
-			if _, errR = remote.Write(recv[:n]); errR != nil {
-				errChan <- errR
-			}
-		}
-		errChan <- nil
-	}()
-
-	var local *Conn
-	local, err = newLocal(localConn1, config)
-	if err != nil {
-		fatal(t, errChan, err)
-	}
-	defer func() {
-		_ = local.Close()
-	}()
-
-	// Test write and read
-	message := []byte("Hello")
-	if _, err = local.Write(message); err != nil {
-		fatal(t, errChan, err)
-	}
-
-	recv := make([]byte, 1024)
-	var n int
-	n, err = local.Read(recv)
-	if err != nil {
-		fatal(t, errChan, err)
-	}
-
-	if !bytes.Equal(message, recv[:n]) {
-		fatal(t, errChan, fmt.Errorf("%w: %s != %s", errMessageMissmatch, message, recv[:n]))
-	}
-
-	if err = localConn1.Close(); err != nil {
-		fatal(t, errChan, err)
-	}
-
-	// Serialize and deserialize state
-	state := local.ConnectionState()
-	var b []byte
-	b, err = state.MarshalBinary()
-	if err != nil {
-		fatal(t, errChan, err)
-	}
-	deserialized := &State{}
-	if err = deserialized.UnmarshalBinary(b); err != nil {
-		fatal(t, errChan, err)
-	}
-
-	// Resume dtls connection
-	var resumed net.Conn
-	resumed, err = Resume(deserialized, localConn2, config)
-	if err != nil {
-		fatal(t, errChan, err)
-	}
-	defer func() {
-		_ = resumed.Close()
-	}()
-
-	// Test write and read on resumed connection
-	if _, err = resumed.Write(message); err != nil {
-		fatal(t, errChan, err)
-	}
-
-	recv = make([]byte, 1024)
-	n, err = resumed.Read(recv)
-	if err != nil {
-		fatal(t, errChan, err)
-	}
-
-	if !bytes.Equal(message, recv[:n]) {
-		fatal(t, errChan, fmt.Errorf("%w: %s != %s", errMessageMissmatch, message, recv[:n]))
-	}
-}
-
-type backupConn struct {
-	curr net.Conn
-	next net.Conn
-	mux  sync.Mutex
-}
-
-func (b *backupConn) Read(data []byte) (n int, err error) {
-	n, err = b.curr.Read(data)
-	if err != nil && b.next != nil {
-		b.mux.Lock()
-		b.curr = b.next
-		b.next = nil
-		b.mux.Unlock()
-		return b.Read(data)
-	}
-	return n, err
-}
-
-func (b *backupConn) Write(data []byte) (n int, err error) {
-	n, err = b.curr.Write(data)
-	if err != nil && b.next != nil {
-		b.mux.Lock()
-		b.curr = b.next
-		b.next = nil
-		b.mux.Unlock()
-		return b.Write(data)
-	}
-	return n, err
-}
-
-func (b *backupConn) Close() error {
-	return nil
-}
-
-func (b *backupConn) LocalAddr() net.Addr {
-	return nil
-}
-
-func (b *backupConn) RemoteAddr() net.Addr {
-	return nil
-}
-
-func (b *backupConn) SetDeadline(t time.Time) error {
-	return nil
-}
-
-func (b *backupConn) SetReadDeadline(t time.Time) error {
-	return nil
-}
-
-func (b *backupConn) SetWriteDeadline(t time.Time) error {
-	return nil
-}
diff --git a/anylink/dtls-2.0.9/srtp_protection_profile.go b/anylink/dtls-2.0.9/srtp_protection_profile.go
deleted file mode 100644
index 1c3ae55..0000000
--- a/anylink/dtls-2.0.9/srtp_protection_profile.go
+++ /dev/null
@@ -1,14 +0,0 @@
-package dtls
-
-import "github.com/pion/dtls/v2/pkg/protocol/extension"
-
-// SRTPProtectionProfile defines the parameters and options that are in effect for the SRTP processing
-// https://tools.ietf.org/html/rfc5764#section-4.1.2
-type SRTPProtectionProfile = extension.SRTPProtectionProfile
-
-const (
-	SRTP_AES128_CM_HMAC_SHA1_80 SRTPProtectionProfile = extension.SRTP_AES128_CM_HMAC_SHA1_80 // nolint
-	SRTP_AES128_CM_HMAC_SHA1_32 SRTPProtectionProfile = extension.SRTP_AES128_CM_HMAC_SHA1_32 // nolint
-	SRTP_AEAD_AES_128_GCM       SRTPProtectionProfile = extension.SRTP_AEAD_AES_128_GCM       // nolint
-	SRTP_AEAD_AES_256_GCM       SRTPProtectionProfile = extension.SRTP_AEAD_AES_256_GCM       // nolint
-)
diff --git a/anylink/dtls-2.0.9/state.go b/anylink/dtls-2.0.9/state.go
deleted file mode 100644
index 6a686a4..0000000
--- a/anylink/dtls-2.0.9/state.go
+++ /dev/null
@@ -1,198 +0,0 @@
-package dtls
-
-import (
-	"bytes"
-	"encoding/gob"
-	"sync/atomic"
-
-	"github.com/pion/dtls/v2/pkg/crypto/elliptic"
-	"github.com/pion/dtls/v2/pkg/crypto/prf"
-	"github.com/pion/dtls/v2/pkg/protocol/handshake"
-	"github.com/pion/transport/replaydetector"
-)
-
-// State holds the dtls connection state and implements both encoding.BinaryMarshaler and encoding.BinaryUnmarshaler
-type State struct {
-	localEpoch, remoteEpoch   atomic.Value
-	localSequenceNumber       []uint64 // uint48
-	localRandom, remoteRandom handshake.Random
-	masterSecret              []byte
-	cipherSuite               CipherSuite // nil if a cipherSuite hasn't been chosen
-
-	srtpProtectionProfile SRTPProtectionProfile // Negotiated SRTPProtectionProfile
-	PeerCertificates      [][]byte
-	IdentityHint          []byte
-	SessionID             []byte
-
-	isClient bool
-
-	preMasterSecret      []byte
-	extendedMasterSecret bool
-
-	namedCurve                 elliptic.Curve
-	localKeypair               *elliptic.Keypair
-	cookie                     []byte
-	handshakeSendSequence      int
-	handshakeRecvSequence      int
-	serverName                 string
-	remoteRequestedCertificate bool   // Did we get a CertificateRequest
-	localCertificatesVerify    []byte // cache CertificateVerify
-	localVerifyData            []byte // cached VerifyData
-	localKeySignature          []byte // cached keySignature
-	peerCertificatesVerified   bool
-
-	replayDetector []replaydetector.ReplayDetector
-}
-
-type serializedState struct {
-	LocalEpoch            uint16
-	RemoteEpoch           uint16
-	LocalRandom           [handshake.RandomLength]byte
-	RemoteRandom          [handshake.RandomLength]byte
-	CipherSuiteID         uint16
-	MasterSecret          []byte
-	SessionID             []byte // TODO 添加 SessionID 支持
-	SequenceNumber        uint64
-	SRTPProtectionProfile uint16
-	PeerCertificates      [][]byte
-	IdentityHint          []byte
-	IsClient              bool
-}
-
-func (s *State) clone() *State {
-	serialized := s.serialize()
-	state := &State{}
-	state.deserialize(*serialized)
-
-	return state
-}
-
-func (s *State) serialize() *serializedState {
-	// Marshal random values
-	localRnd := s.localRandom.MarshalFixed()
-	remoteRnd := s.remoteRandom.MarshalFixed()
-
-	epoch := s.localEpoch.Load().(uint16)
-	return &serializedState{
-		LocalEpoch:            epoch,
-		RemoteEpoch:           s.remoteEpoch.Load().(uint16),
-		CipherSuiteID:         uint16(s.cipherSuite.ID()),
-		MasterSecret:          s.masterSecret,
-		SessionID:             s.SessionID, // TODO 添加 SessionID 支持
-		SequenceNumber:        atomic.LoadUint64(&s.localSequenceNumber[epoch]),
-		LocalRandom:           localRnd,
-		RemoteRandom:          remoteRnd,
-		SRTPProtectionProfile: uint16(s.srtpProtectionProfile),
-		PeerCertificates:      s.PeerCertificates,
-		IdentityHint:          s.IdentityHint,
-		IsClient:              s.isClient,
-	}
-}
-
-func (s *State) deserialize(serialized serializedState) {
-	// Set epoch values
-	epoch := serialized.LocalEpoch
-	s.localEpoch.Store(serialized.LocalEpoch)
-	s.remoteEpoch.Store(serialized.RemoteEpoch)
-
-	for len(s.localSequenceNumber) <= int(epoch) {
-		s.localSequenceNumber = append(s.localSequenceNumber, uint64(0))
-	}
-
-	// Set random values
-	localRandom := &handshake.Random{}
-	localRandom.UnmarshalFixed(serialized.LocalRandom)
-	s.localRandom = *localRandom
-
-	remoteRandom := &handshake.Random{}
-	remoteRandom.UnmarshalFixed(serialized.RemoteRandom)
-	s.remoteRandom = *remoteRandom
-
-	s.isClient = serialized.IsClient
-
-	// Set master secret
-	s.masterSecret = serialized.MasterSecret
-	s.SessionID = serialized.SessionID // TODO 添加 SessionID 支持
-
-	// Set cipher suite
-	s.cipherSuite = cipherSuiteForID(CipherSuiteID(serialized.CipherSuiteID), nil)
-
-	atomic.StoreUint64(&s.localSequenceNumber[epoch], serialized.SequenceNumber)
-	s.srtpProtectionProfile = SRTPProtectionProfile(serialized.SRTPProtectionProfile)
-
-	// Set remote certificate
-	s.PeerCertificates = serialized.PeerCertificates
-	s.IdentityHint = serialized.IdentityHint
-}
-
-func (s *State) initCipherSuite() error {
-	if s.cipherSuite.IsInitialized() {
-		return nil
-	}
-
-	localRandom := s.localRandom.MarshalFixed()
-	remoteRandom := s.remoteRandom.MarshalFixed()
-
-	var err error
-	if s.isClient {
-		err = s.cipherSuite.Init(s.masterSecret, localRandom[:], remoteRandom[:], true)
-	} else {
-		err = s.cipherSuite.Init(s.masterSecret, remoteRandom[:], localRandom[:], false)
-	}
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-// MarshalBinary is a binary.BinaryMarshaler.MarshalBinary implementation
-func (s *State) MarshalBinary() ([]byte, error) {
-	serialized := s.serialize()
-
-	var buf bytes.Buffer
-	enc := gob.NewEncoder(&buf)
-	if err := enc.Encode(*serialized); err != nil {
-		return nil, err
-	}
-	return buf.Bytes(), nil
-}
-
-// UnmarshalBinary is a binary.BinaryUnmarshaler.UnmarshalBinary implementation
-func (s *State) UnmarshalBinary(data []byte) error {
-	enc := gob.NewDecoder(bytes.NewBuffer(data))
-	var serialized serializedState
-	if err := enc.Decode(&serialized); err != nil {
-		return err
-	}
-
-	s.deserialize(serialized)
-	if err := s.initCipherSuite(); err != nil {
-		return err
-	}
-	return nil
-}
-
-// ExportKeyingMaterial returns length bytes of exported key material in a new
-// slice as defined in RFC 5705.
-// This allows protocols to use DTLS for key establishment, but
-// then use some of the keying material for their own purposes
-func (s *State) ExportKeyingMaterial(label string, context []byte, length int) ([]byte, error) {
-	if s.localEpoch.Load().(uint16) == 0 {
-		return nil, errHandshakeInProgress
-	} else if len(context) != 0 {
-		return nil, errContextUnsupported
-	} else if _, ok := invalidKeyingLabels()[label]; ok {
-		return nil, errReservedExportKeyingMaterial
-	}
-
-	localRandom := s.localRandom.MarshalFixed()
-	remoteRandom := s.remoteRandom.MarshalFixed()
-
-	seed := []byte(label)
-	if s.isClient {
-		seed = append(append(seed, localRandom[:]...), remoteRandom[:]...)
-	} else {
-		seed = append(append(seed, remoteRandom[:]...), localRandom[:]...)
-	}
-	return prf.PHash(s.masterSecret, seed, length, s.cipherSuite.HashFunc())
-}
diff --git a/anylink/dtls-2.0.9/util.go b/anylink/dtls-2.0.9/util.go
deleted file mode 100644
index 745182d..0000000
--- a/anylink/dtls-2.0.9/util.go
+++ /dev/null
@@ -1,38 +0,0 @@
-package dtls
-
-func findMatchingSRTPProfile(a, b []SRTPProtectionProfile) (SRTPProtectionProfile, bool) {
-	for _, aProfile := range a {
-		for _, bProfile := range b {
-			if aProfile == bProfile {
-				return aProfile, true
-			}
-		}
-	}
-	return 0, false
-}
-
-func findMatchingCipherSuite(a, b []CipherSuite) (CipherSuite, bool) { //nolint
-	for _, aSuite := range a {
-		for _, bSuite := range b {
-			if aSuite.ID() == bSuite.ID() {
-				return aSuite, true
-			}
-		}
-	}
-	return nil, false
-}
-
-func splitBytes(bytes []byte, splitLen int) [][]byte {
-	splitBytes := make([][]byte, 0)
-	numBytes := len(bytes)
-	for i := 0; i < numBytes; i += splitLen {
-		j := i + splitLen
-		if j > numBytes {
-			j = numBytes
-		}
-
-		splitBytes = append(splitBytes, bytes[i:j])
-	}
-
-	return splitBytes
-}
diff --git a/anylink/server/.gitignore b/anylink/server/.gitignore
index 4c9effc..ded724b 100644
--- a/anylink/server/.gitignore
+++ b/anylink/server/.gitignore
@@ -17,4 +17,5 @@ vendor/
 ui/
 .idea/
 anylink
-data.db
\ No newline at end of file
+data.db
+conf/*.db
\ No newline at end of file
diff --git a/anylink/server/admin/api_group.go b/anylink/server/admin/api_group.go
index dd440e1..f5975c1 100644
--- a/anylink/server/admin/api_group.go
+++ b/anylink/server/admin/api_group.go
@@ -47,6 +47,16 @@ func GroupNames(w http.ResponseWriter, r *http.Request) {
 	RespSucess(w, data)
 }
 
+func GroupNamesIds(w http.ResponseWriter, r *http.Request) {
+	var names = dbdata.GetGroupNamesIds()
+	data := map[string]interface{}{
+		"count":     len(names),
+		"page_size": 0,
+		"datas":     names,
+	}
+	RespSucess(w, data)
+}
+
 func GroupDetail(w http.ResponseWriter, r *http.Request) {
 	_ = r.ParseForm()
 	idS := r.FormValue("id")
diff --git a/anylink/server/admin/api_other.go b/anylink/server/admin/api_other.go
index 00f926a..557b27a 100644
--- a/anylink/server/admin/api_other.go
+++ b/anylink/server/admin/api_other.go
@@ -2,8 +2,10 @@ package admin
 
 import (
 	"encoding/json"
+	"errors"
 	"io/ioutil"
 	"net/http"
+	"regexp"
 
 	"github.com/bjdgyc/anylink/dbdata"
 )
@@ -14,6 +16,11 @@ func setOtherGet(data interface{}, w http.ResponseWriter) {
 		RespError(w, RespInternalErr, err)
 		return
 	}
+	// 不明文输出SMTP的密码
+	switch dbdata.StructName(data) {
+	case "SettingSmtp":
+		data.(*dbdata.SettingSmtp).Password = ""
+	}
 	RespSucess(w, data)
 }
 
@@ -32,7 +39,15 @@ func setOtherEdit(data interface{}, w http.ResponseWriter, r *http.Request) {
 	}
 
 	// fmt.Println(data)
-
+	switch dbdata.StructName(data) {
+	case "SettingSmtp":
+		// 密码为空时则不修改
+		smtp := &dbdata.SettingSmtp{}
+		err := dbdata.SettingGet(smtp)
+		if err == nil && data.(*dbdata.SettingSmtp).Password == "" {
+			data.(*dbdata.SettingSmtp).Password = smtp.Password
+		}
+	}
 	err = dbdata.SettingSet(data)
 	if err != nil {
 		RespError(w, RespInternalErr, err)
@@ -60,3 +75,42 @@ func SetOtherEdit(w http.ResponseWriter, r *http.Request) {
 	data := &dbdata.SettingOther{}
 	setOtherEdit(data, w, r)
 }
+
+func SetOtherAuditLog(w http.ResponseWriter, r *http.Request) {
+	data, err := dbdata.SettingGetAuditLog()
+	if err != nil {
+		RespError(w, RespInternalErr, err)
+		return
+	}
+	RespSucess(w, data)
+}
+
+func SetOtherAuditLogEdit(w http.ResponseWriter, r *http.Request) {
+	body, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		RespError(w, RespInternalErr, err)
+		return
+	}
+	defer r.Body.Close()
+	data := &dbdata.SettingAuditLog{}
+	err = json.Unmarshal(body, data)
+	if err != nil {
+		RespError(w, RespInternalErr, err)
+		return
+	}
+	if data.LifeDay < 0 || data.LifeDay > 365 {
+		RespError(w, RespParamErr, errors.New("日志存储时长范围在 0 ~ 365"))
+		return
+	}
+	ok, _ := regexp.Match("^([0-9]|0[0-9]|1[0-9]|2[0-3]):([0][0])$", []byte(data.ClearTime))
+	if !ok {
+		RespError(w, RespParamErr, errors.New("每天清理时间填写有误"))
+		return
+	}
+	err = dbdata.SettingSet(data)
+	if err != nil {
+		RespError(w, RespInternalErr, err)
+		return
+	}
+	RespSucess(w, data)
+}
diff --git a/anylink/server/admin/api_set.go b/anylink/server/admin/api_set.go
index bbd7231..18a1cb0 100644
--- a/anylink/server/admin/api_set.go
+++ b/anylink/server/admin/api_set.go
@@ -66,11 +66,12 @@ func SetSystem(w http.ResponseWriter, r *http.Request) {
 	hi, _ := host.Info()
 	l, _ := load.Avg()
 	data["sys"] = map[string]interface{}{
-		"goOs":       runtime.GOOS,
-		"goArch":     runtime.GOARCH,
-		"goVersion":  runtime.Version(),
-		"goroutine":  runtime.NumGoroutine(),
-		"appVersion": "v" + base.APP_VER,
+		"goOs":        runtime.GOOS,
+		"goArch":      runtime.GOARCH,
+		"goVersion":   runtime.Version(),
+		"goroutine":   runtime.NumGoroutine(),
+		"appVersion":  "v" + base.APP_VER,
+		"appCommitId": base.CommitId,
 
 		"hostname": hi.Hostname,
 		"platform": fmt.Sprintf("%v %v %v", hi.Platform, hi.PlatformFamily, hi.PlatformVersion),
diff --git a/anylink/server/admin/api_set_audit.go b/anylink/server/admin/api_set_audit.go
index 868957c..872c7a6 100644
--- a/anylink/server/admin/api_set_audit.go
+++ b/anylink/server/admin/api_set_audit.go
@@ -5,6 +5,7 @@ import (
 	"strconv"
 
 	"github.com/bjdgyc/anylink/dbdata"
+	"github.com/gocarina/gocsv"
 )
 
 func SetAuditList(w http.ResponseWriter, r *http.Request) {
@@ -14,15 +15,13 @@ func SetAuditList(w http.ResponseWriter, r *http.Request) {
 	if page < 1 {
 		page = 1
 	}
-
 	var datas []dbdata.AccessAudit
-	count := dbdata.CountAll(&dbdata.AccessAudit{})
-	err := dbdata.Find(&datas, dbdata.PageSize, page)
+	session := dbdata.GetAuditSession(r.FormValue("search"))
+	count, err := dbdata.FindAndCount(session, &datas, dbdata.PageSize, page)
 	if err != nil && !dbdata.CheckErrNotFound(err) {
 		RespError(w, RespInternalErr, err)
 		return
 	}
-
 	data := map[string]interface{}{
 		"count":     count,
 		"page_size": dbdata.PageSize,
@@ -31,3 +30,24 @@ func SetAuditList(w http.ResponseWriter, r *http.Request) {
 
 	RespSucess(w, data)
 }
+
+func SetAuditExport(w http.ResponseWriter, r *http.Request) {
+	var datas []dbdata.AccessAudit
+	maxNum := 1000000
+	session := dbdata.GetAuditSession(r.FormValue("search"))
+	count, err := dbdata.FindAndCount(session, &datas, maxNum, 0)
+	if err != nil && !dbdata.CheckErrNotFound(err) {
+		RespError(w, RespInternalErr, err)
+		return
+	}
+	if count == 0 {
+		RespError(w, RespParamErr, "你导出的总数量为0条，请调整搜索条件，再导出")
+		return
+	}
+	if count > int64(maxNum) {
+		RespError(w, RespParamErr, "你导出的数据量超过100万条，请调整搜索条件，再导出")
+		return
+	}
+	gocsv.Marshal(datas, w)
+
+}
diff --git a/anylink/server/admin/api_statsinfo.go b/anylink/server/admin/api_statsinfo.go
new file mode 100644
index 0000000..2ef347a
--- /dev/null
+++ b/anylink/server/admin/api_statsinfo.go
@@ -0,0 +1,33 @@
+package admin
+
+import (
+	"errors"
+	"net/http"
+
+	"github.com/bjdgyc/anylink/dbdata"
+)
+
+func StatsInfoList(w http.ResponseWriter, r *http.Request) {
+	var ok bool
+	_ = r.ParseForm()
+	action := r.FormValue("action")
+	scope := r.FormValue("scope")
+	ok = dbdata.StatsInfoIns.ValidAction(action)
+	if !ok {
+		RespError(w, RespParamErr, errors.New("不存在的图表类别"))
+		return
+	}
+	ok = dbdata.StatsInfoIns.ValidScope(scope)
+	if !ok {
+		RespError(w, RespParamErr, errors.New("不存在的日期范围"))
+		return
+	}
+	datas, err := dbdata.StatsInfoIns.GetData(action, scope)
+	if err != nil {
+		RespError(w, RespInternalErr, err)
+		return
+	}
+	data := make(map[string]interface{})
+	data["datas"] = datas
+	RespSucess(w, data)
+}
diff --git a/anylink/server/admin/server.go b/anylink/server/admin/server.go
index 75b6ac9..d4939e0 100644
--- a/anylink/server/admin/server.go
+++ b/anylink/server/admin/server.go
@@ -7,7 +7,9 @@ import (
 	"net/http"
 	"net/http/pprof"
 
+	"github.com/arl/statsviz"
 	"github.com/bjdgyc/anylink/base"
+	"github.com/gorilla/handlers"
 	"github.com/gorilla/mux"
 )
 
@@ -18,6 +20,7 @@ func StartAdmin() {
 
 	r := mux.NewRouter()
 	r.Use(authMiddleware)
+	r.Use(handlers.CompressHandler)
 
 	// 监控检测
 	r.HandleFunc("/status.html", func(w http.ResponseWriter, r *http.Request) {
@@ -38,7 +41,10 @@ func StartAdmin() {
 	r.HandleFunc("/set/other/edit", SetOtherEdit)
 	r.HandleFunc("/set/other/smtp", SetOtherSmtp)
 	r.HandleFunc("/set/other/smtp/edit", SetOtherSmtpEdit)
+	r.HandleFunc("/set/other/audit_log", SetOtherAuditLog)
+	r.HandleFunc("/set/other/audit_log/edit", SetOtherAuditLogEdit)
 	r.HandleFunc("/set/audit/list", SetAuditList)
+	r.HandleFunc("/set/audit/export", SetAuditExport)
 
 	r.HandleFunc("/user/list", UserList)
 	r.HandleFunc("/user/detail", UserDetail)
@@ -59,10 +65,13 @@ func StartAdmin() {
 
 	r.HandleFunc("/group/list", GroupList)
 	r.HandleFunc("/group/names", GroupNames)
+	r.HandleFunc("/group/names_ids", GroupNamesIds)
 	r.HandleFunc("/group/detail", GroupDetail)
 	r.HandleFunc("/group/set", GroupSet)
 	r.HandleFunc("/group/del", GroupDel)
 
+	r.HandleFunc("/statsinfo/list", StatsInfoList)
+
 	// pprof
 	if base.Cfg.Pprof {
 		r.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline).Name("debug")
@@ -71,6 +80,9 @@ func StartAdmin() {
 		r.HandleFunc("/debug/pprof/trace", pprof.Trace).Name("debug")
 		r.HandleFunc("/debug/pprof", location("/debug/pprof/")).Name("debug")
 		r.PathPrefix("/debug/pprof/").HandlerFunc(pprof.Index).Name("debug")
+		// statsviz
+		r.Path("/debug/statsviz/ws").Name("debug").HandlerFunc(statsviz.Ws)
+		r.PathPrefix("/debug/statsviz/").Name("debug").Handler(statsviz.Index)
 	}
 
 	base.Info("Listen admin", base.Cfg.AdminAddr)
diff --git a/anylink/server/base/app_ver.go b/anylink/server/base/app_ver.go
index dcb53f2..2666b77 100644
--- a/anylink/server/base/app_ver.go
+++ b/anylink/server/base/app_ver.go
@@ -2,6 +2,6 @@ package base
 
 const (
 	APP_NAME = "AnyLink"
-	// 添加radius支持
-	APP_VER = "0.8.1"
+	// app版本号
+	APP_VER = "0.9.1-beta1"
 )
diff --git a/anylink/server/base/cfg.go b/anylink/server/base/cfg.go
index 5690f08..3df1113 100644
--- a/anylink/server/base/cfg.go
+++ b/anylink/server/base/cfg.go
@@ -67,10 +67,13 @@ type ServerConfig struct {
 	MobileKeepalive int    `json:"mobile_keepalive"`
 	MobileDpd       int    `json:"mobile_dpd"`
 	Mtu             int    `json:"mtu"`
+	DefaultDomain   string `json:"default_domain"`
 
 	SessionTimeout int `json:"session_timeout"` // in seconds
 	// AuthTimeout    int `json:"auth_timeout"`    // in seconds
 	AuditInterval int `json:"audit_interval"` // in seconds
+
+	ShowSQL bool `json:"show_sql"` // bool
 }
 
 func initServerCfg() {
diff --git a/anylink/server/base/config.go b/anylink/server/base/config.go
index bdb6dc1..50f9e28 100644
--- a/anylink/server/base/config.go
+++ b/anylink/server/base/config.go
@@ -46,6 +46,7 @@ var configs = []config{
 	{Typ: cfgStr, Name: "ipv4_start", Usage: "IPV4开始地址", ValStr: "192.168.10.100"},
 	{Typ: cfgStr, Name: "ipv4_end", Usage: "IPV4结束", ValStr: "192.168.10.200"},
 	{Typ: cfgStr, Name: "default_group", Usage: "默认用户组", ValStr: "one"},
+	{Typ: cfgStr, Name: "default_domain", Usage: "要发布的默认域", ValStr: ""},
 
 	{Typ: cfgInt, Name: "ip_lease", Usage: "IP租期(秒)", ValInt: 1209600},
 	{Typ: cfgInt, Name: "max_client", Usage: "最大用户连接", ValInt: 100},
@@ -58,6 +59,8 @@ var configs = []config{
 	{Typ: cfgInt, Name: "session_timeout", Usage: "session过期时间(秒)", ValInt: 3600},
 	// {Typ: cfgInt, Name: "auth_timeout", Usage: "auth_timeout", ValInt: 0},
 	{Typ: cfgInt, Name: "audit_interval", Usage: "审计去重间隔(秒),-1关闭", ValInt: -1},
+
+	{Typ: cfgBool, Name: "show_sql", Usage: "显示sql语句，用于调试", ValBool: false},
 }
 
 var envs = map[string]string{}
diff --git a/anylink/server/conf/server-sample.toml b/anylink/server/conf/server-sample.toml
index 13a8835..785e901 100644
--- a/anylink/server/conf/server-sample.toml
+++ b/anylink/server/conf/server-sample.toml
@@ -64,11 +64,16 @@ mobile_dpd = 50
 #设置最大传输单元
 mtu = 1460
 
+# 要发布的默认域
+default_domain = "example.com"
+#default_domain = "example.com abc.example.com"
+
 #session过期时间，用于断线重连，0永不过期
 session_timeout = 3600
 auth_timeout = 0
 audit_interval = -1
 
+show_sql = false
 
 
 
diff --git a/anylink/server/cron/clear_audit.go b/anylink/server/cron/clear_audit.go
new file mode 100644
index 0000000..34f114c
--- /dev/null
+++ b/anylink/server/cron/clear_audit.go
@@ -0,0 +1,20 @@
+package cron
+
+import (
+	"github.com/bjdgyc/anylink/base"
+	"github.com/bjdgyc/anylink/dbdata"
+)
+
+// 清除访问审计日志
+func ClearAudit() {
+	lifeDay, timesUp := isClearTime()
+	if !timesUp {
+		return
+	}
+	// 当审计日志永久保存，则退出
+	if lifeDay <= 0 {
+		return
+	}
+	affected, err := dbdata.ClearAccessAudit(getTimeAgo(lifeDay))
+	base.Info("Cron ClearAudit: ", affected, err)
+}
diff --git a/anylink/server/cron/clear_statsinfo.go b/anylink/server/cron/clear_statsinfo.go
new file mode 100644
index 0000000..11ecbd3
--- /dev/null
+++ b/anylink/server/cron/clear_statsinfo.go
@@ -0,0 +1,52 @@
+package cron
+
+import (
+	"time"
+
+	"github.com/bjdgyc/anylink/base"
+	"github.com/bjdgyc/anylink/dbdata"
+)
+
+const siLifeDay = 30
+
+// 清除图表数据
+func ClearStatsInfo() {
+	_, timesUp := isClearTime()
+	if !timesUp {
+		return
+	}
+	ts := getTimeAgo(siLifeDay)
+	for _, item := range dbdata.StatsInfoIns.Actions {
+		affected, err := dbdata.StatsInfoIns.ClearStatsInfo(item, ts)
+		base.Info("Cron ClearStatsInfo  "+item+": ", affected, err)
+	}
+}
+
+// 是否到了"清理时间"
+func isClearTime() (int, bool) {
+	dataLog, err := dbdata.SettingGetAuditLog()
+	if err != nil {
+		base.Error("Cron SettingGetLog: ", err)
+		return -1, false
+	}
+	currentTime := time.Now().Format("15:04")
+	// 未到"清理时间"时, 则返回
+	if dataLog.ClearTime != currentTime {
+		return -1, false
+	}
+	return dataLog.LifeDay, true
+}
+
+// 根据存储时长，获取清理日期
+func getTimeAgo(days int) string {
+	var timeS string
+	ts := time.Now().AddDate(0, 0, -days)
+	tsZero := time.Date(ts.Year(), ts.Month(), ts.Day(), 0, 0, 0, 0, time.Local)
+	timeS = tsZero.Format(dbdata.LayoutTimeFormat)
+	// UTC
+	switch base.Cfg.DbType {
+	case "sqlite3", "postgres":
+		timeS = tsZero.UTC().Format(dbdata.LayoutTimeFormat)
+	}
+	return timeS
+}
diff --git a/anylink/server/cron/start.go b/anylink/server/cron/start.go
new file mode 100644
index 0000000..2692cfe
--- /dev/null
+++ b/anylink/server/cron/start.go
@@ -0,0 +1,14 @@
+package cron
+
+import (
+	"time"
+
+	"github.com/go-co-op/gocron"
+)
+
+func Start() {
+	s := gocron.NewScheduler(time.Local)
+	s.Cron("0 * * * *").Do(ClearAudit)
+	s.Cron("0 * * * *").Do(ClearStatsInfo)
+	s.StartAsync()
+}
diff --git a/anylink/server/dbdata/audit.go b/anylink/server/dbdata/audit.go
new file mode 100644
index 0000000..d54f315
--- /dev/null
+++ b/anylink/server/dbdata/audit.go
@@ -0,0 +1,56 @@
+package dbdata
+
+import (
+	"encoding/json"
+
+	"xorm.io/xorm"
+)
+
+type SearchCon struct {
+	Username    string   `json:"username"`
+	Src         string   `json:"src"`
+	Dst         string   `json:"dst"`
+	DstPort     string   `json:"dst_port"`
+	AccessProto string   `json:"access_proto"`
+	Date        []string `json:"date"`
+	Info        string   `json:"info"`
+}
+
+func GetAuditSession(search string) *xorm.Session {
+	session := xdb.Where("1=1")
+	if search == "" {
+		return session
+	}
+	var searchData SearchCon
+	err := json.Unmarshal([]byte(search), &searchData)
+	if err != nil {
+		return session
+	}
+	if searchData.Username != "" {
+		session.And("username = ?", searchData.Username)
+	}
+	if searchData.Src != "" {
+		session.And("src = ?", searchData.Src)
+	}
+	if searchData.Dst != "" {
+		session.And("dst = ?", searchData.Dst)
+	}
+	if searchData.DstPort != "" {
+		session.And("dst_port = ?", searchData.DstPort)
+	}
+	if searchData.AccessProto != "" {
+		session.And("access_proto = ?", searchData.AccessProto)
+	}
+	if len(searchData.Date) > 0 && searchData.Date[0] != "" {
+		session.And("created_at BETWEEN ? AND ?", searchData.Date[0], searchData.Date[1])
+	}
+	if searchData.Info != "" {
+		session.And("info LIKE ?", "%"+searchData.Info+"%")
+	}
+	return session
+}
+
+func ClearAccessAudit(ts string) (int64, error) {
+	affected, err := xdb.Where("created_at < '" + ts + "'").Delete(&AccessAudit{})
+	return affected, err
+}
diff --git a/anylink/server/dbdata/audit_test.go b/anylink/server/dbdata/audit_test.go
new file mode 100644
index 0000000..a2ca9aa
--- /dev/null
+++ b/anylink/server/dbdata/audit_test.go
@@ -0,0 +1,43 @@
+package dbdata
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSearchAudit(t *testing.T) {
+	ast := assert.New(t)
+
+	preIpData()
+	defer closeIpdata()
+
+	currDateVal := "2022-07-24 00:00:00"
+	CreatedAt, _ := time.Parse("2006-01-02 15:04:05", currDateVal)
+
+	dataTest := AccessAudit{
+		Username:    "Test",
+		Protocol:    6,
+		Src:         "10.10.1.5",
+		SrcPort:     0,
+		Dst:         "172.217.160.68",
+		DstPort:     80,
+		AccessProto: 4,
+		Info:        "www.google.com",
+		CreatedAt:   CreatedAt,
+	}
+	err := Add(dataTest)
+	ast.Nil(err)
+
+	var datas []AccessAudit
+	searchFormat := `{"username": "%s", "src":"%s", "dst": "%s", "dst_port":"%d","access_proto":"%d","info":"%s","date":["%s","%s"]}`
+	search := fmt.Sprintf(searchFormat, dataTest.Username, dataTest.Src, dataTest.Dst, dataTest.DstPort, dataTest.AccessProto, dataTest.Info, currDateVal, currDateVal)
+
+	session := GetAuditSession(search)
+	count, _ := FindAndCount(session, &datas, PageSize, 0)
+	ast.Equal(count, int64(1))
+	ast.Equal(datas[0].Username, dataTest.Username)
+	ast.Equal(datas[0].Dst, dataTest.Dst)
+}
diff --git a/anylink/server/dbdata/db.go b/anylink/server/dbdata/db.go
index 994651b..64f1ecc 100644
--- a/anylink/server/dbdata/db.go
+++ b/anylink/server/dbdata/db.go
@@ -19,13 +19,16 @@ func GetXdb() *xorm.Engine {
 func initDb() {
 	var err error
 	xdb, err = xorm.NewEngine(base.Cfg.DbType, base.Cfg.DbSource)
-	// xdb.ShowSQL(true)
 	if err != nil {
 		base.Fatal(err)
 	}
 
+	if base.Cfg.ShowSQL {
+		xdb.ShowSQL(true)
+	}
+
 	// 初始化数据库
-	err = xdb.Sync2(&User{}, &Setting{}, &Group{}, &IpMap{}, &AccessAudit{}, &Policy{})
+	err = xdb.Sync2(&User{}, &Setting{}, &Group{}, &IpMap{}, &AccessAudit{}, &Policy{}, &StatsNetwork{}, &StatsCpu{}, &StatsMem{}, &StatsOnline{})
 	if err != nil {
 		base.Fatal(err)
 	}
@@ -84,10 +87,18 @@ func addInitData() error {
 		return err
 	}
 
+	// SettingAuditLog
+	auditLog := SettingGetAuditLogDefault()
+	err = SettingSessAdd(sess, auditLog)
+	if err != nil {
+		return err
+	}
+
 	// SettingOther
 	other := &SettingOther{
 		LinkAddr:    "vpn.xx.com",
 		Banner:      "您已接入公司网络，请按照公司规定使用。\n请勿进行非工作下载及视频行为！",
+		Homeindex:   "AnyLink 是一个企业级远程办公 sslvpn 的软件，可以支持多人同时在线使用。",
 		AccountMail: accountMail,
 	}
 	err = SettingSessAdd(sess, other)
diff --git a/anylink/server/dbdata/db_orm.go b/anylink/server/dbdata/db_orm.go
index b168c36..3de1fe5 100644
--- a/anylink/server/dbdata/db_orm.go
+++ b/anylink/server/dbdata/db_orm.go
@@ -3,6 +3,8 @@ package dbdata
 import (
 	"errors"
 	"reflect"
+
+	"xorm.io/xorm"
 )
 
 const PageSize = 10
@@ -14,6 +16,11 @@ func Add(data interface{}) error {
 	return err
 }
 
+func AddBatch(data interface{}) error {
+	_, err := xdb.Insert(data)
+	return err
+}
+
 func Update(fieldName string, value interface{}, data interface{}) error {
 	_, err := xdb.Where(fieldName+"=?", value).Update(data)
 	return err
@@ -68,6 +75,15 @@ func Find(data interface{}, limit, page int) error {
 	return xdb.Limit(limit, start).Find(data)
 }
 
+func FindWhere(data interface{}, limit int, page int, where string, args ...interface{}) error {
+	if limit == 0 {
+		return xdb.Where(where, args...).Find(data)
+	}
+
+	start := (page - 1) * limit
+	return xdb.Where(where, args...).Limit(limit, start).Find(data)
+}
+
 func CountPrefix(fieldName string, prefix string, data interface{}) int {
 	n, _ := xdb.Where(fieldName+" like ?", prefix+"%").Count(data)
 	return int(n)
@@ -82,3 +98,12 @@ func Prefix(fieldName string, prefix string, data interface{}, limit, page int)
 	start := (page - 1) * limit
 	return where.Limit(limit, start).Find(data)
 }
+
+func FindAndCount(session *xorm.Session, data interface{}, limit, page int) (int64, error) {
+	if limit == 0 {
+		return session.FindAndCount(data)
+	}
+	start := (page - 1) * limit
+	totalCount, err := session.Limit(limit, start).FindAndCount(data)
+	return totalCount, err
+}
diff --git a/anylink/server/dbdata/group.go b/anylink/server/dbdata/group.go
index 112805d..ee66ac0 100644
--- a/anylink/server/dbdata/group.go
+++ b/anylink/server/dbdata/group.go
@@ -9,6 +9,8 @@ import (
 	"time"
 
 	"github.com/bjdgyc/anylink/base"
+	"golang.org/x/text/language"
+	"golang.org/x/text/message"
 )
 
 const (
@@ -17,6 +19,9 @@ const (
 	All   = "all"
 )
 
+// 域名分流最大字符2万
+const DsMaxLen = 20000
+
 type GroupLinkAcl struct {
 	// 自上而下匹配 默认 allow * *
 	Action string     `json:"action"` // allow、deny
@@ -32,6 +37,11 @@ type ValData struct {
 	Note   string `json:"note"`
 }
 
+type GroupNameId struct {
+	Id   int    `json:"id"`
+	Name string `json:"name"`
+}
+
 // type Group struct {
 // 	Id               int                    `json:"id" xorm:"pk autoincr not null"`
 // 	Name             string                 `json:"name" xorm:"varchar(60) not null unique"`
@@ -64,6 +74,20 @@ func GetGroupNames() []string {
 	return names
 }
 
+func GetGroupNamesIds() []GroupNameId {
+	var datas []Group
+	err := Find(&datas, 0, 0)
+	if err != nil {
+		base.Error(err)
+		return nil
+	}
+	var names []GroupNameId
+	for _, v := range datas {
+		names = append(names, GroupNameId{Id: v.Id, Name: v.Name})
+	}
+	return names
+}
+
 func SetGroup(g *Group) error {
 	var err error
 	if g.Name == "" {
@@ -126,10 +150,10 @@ func SetGroup(g *Group) error {
 			clientDns = append(clientDns, v)
 		}
 	}
-	if len(routeInclude) == 0 || (len(routeInclude) == 1 && routeInclude[0].Val == "all") {
-		if len(clientDns) == 0 {
-			return errors.New("默认路由，必须设置一个DNS")
-		}
+	// 是否默认路由
+	isDefRoute := len(routeInclude) == 0 || (len(routeInclude) == 1 && routeInclude[0].Val == "all")
+	if isDefRoute && len(clientDns) == 0 {
+		return errors.New("默认路由，必须设置一个DNS")
 	}
 	g.ClientDns = clientDns
 	// 域名拆分隧道，不能同时填写
@@ -148,6 +172,9 @@ func SetGroup(g *Group) error {
 	if err != nil {
 		return errors.New("排除域名有误：" + err.Error())
 	}
+	if isDefRoute && g.DsIncludeDomains != "" {
+		return errors.New("默认路由, 不允许设置\"包含域名\", 请重新配置")
+	}
 	// 处理登入方式的逻辑
 	defAuth := map[string]interface{}{
 		"type": "local",
@@ -159,8 +186,7 @@ func SetGroup(g *Group) error {
 	if authType == "local" {
 		g.Auth = defAuth
 	} else {
-		_, ok := authRegistry[authType]
-		if !ok {
+		if _, ok := authRegistry[authType]; !ok {
 			return errors.New("未知的认证方式: " + authType)
 		}
 		auth := makeInstance(authType).(IUserAuth)
@@ -168,6 +194,11 @@ func SetGroup(g *Group) error {
 		if err != nil {
 			return err
 		}
+		// 重置Auth， 删除多余的key
+		g.Auth = map[string]interface{}{
+			"type":   authType,
+			authType: g.Auth[authType],
+		}
 	}
 
 	g.UpdatedAt = time.Now()
@@ -196,6 +227,7 @@ func CheckDomainNames(domains string) error {
 	if domains == "" {
 		return nil
 	}
+	strLen := 0
 	str_slice := strings.Split(domains, ",")
 	for _, val := range str_slice {
 		if val == "" {
@@ -204,6 +236,11 @@ func CheckDomainNames(domains string) error {
 		if !ValidateDomainName(val) {
 			return errors.New(val + " 域名有误")
 		}
+		strLen += len(val)
+	}
+	if strLen > DsMaxLen {
+		p := message.NewPrinter(language.English)
+		return fmt.Errorf("字符长度超出限制，最大%s个(不包含逗号), 请删减一些域名", p.Sprintf("%d", DsMaxLen))
 	}
 	return nil
 }
diff --git a/anylink/server/dbdata/group_test.go b/anylink/server/dbdata/group_test.go
index 7d27c7f..b4b26f9 100644
--- a/anylink/server/dbdata/group_test.go
+++ b/anylink/server/dbdata/group_test.go
@@ -36,15 +36,39 @@ func TestGetGroupNames(t *testing.T) {
 	ast.Nil(err)
 	g5 := Group{Name: "g5", ClientDns: []ValData{{Val: "114.114.114.114"}}, DsIncludeDomains: "baidu.com,163.com"}
 	err = SetGroup(&g5)
-	ast.Nil(err)
+	if ast.NotNil(err) {
+		ast.Equal("默认路由, 不允许设置\"包含域名\", 请重新配置", err.Error())
+	}
 	g6 := Group{Name: "g6", ClientDns: []ValData{{Val: "114.114.114.114"}}, DsExcludeDomains: "com.cn,qq.com"}
 	err = SetGroup(&g6)
 	ast.Nil(err)
 
+	authData = map[string]interface{}{
+		"type": "ldap",
+		"ldap": map[string]interface{}{
+			"addr":        "192.168.8.12:389",
+			"tls":         true,
+			"bind_name":   "userfind@abc.com",
+			"bind_pwd":    "afdbfdsafds",
+			"base_dn":     "dc=abc,dc=com",
+			"search_attr": "sAMAccountName",
+			"member_of":   "cn=vpn,cn=user,dc=abc,dc=com",
+		},
+	}
+	g7 := Group{Name: "g7", ClientDns: []ValData{{Val: "114.114.114.114"}}, Auth: authData}
+	err = SetGroup(&g7)
+	ast.Nil(err)
+
 	// 判断所有数据
-	gAll := []string{"g1", "g2", "g3", "g4", "g5", "g6"}
+	gAll := []string{"g1", "g2", "g3", "g4", "g5", "g6", "g7"}
 	gs := GetGroupNames()
 	for _, v := range gs {
 		ast.Equal(true, utils.InArrStr(gAll, v))
 	}
+
+	gni := GetGroupNamesIds()
+	for _, v := range gni {
+		ast.NotEqual(0, v.Id)
+		ast.Equal(true, utils.InArrStr(gAll, v.Name))
+	}
 }
diff --git a/anylink/server/dbdata/setting.go b/anylink/server/dbdata/setting.go
index a9ab9e6..964cb72 100644
--- a/anylink/server/dbdata/setting.go
+++ b/anylink/server/dbdata/setting.go
@@ -3,6 +3,7 @@ package dbdata
 import (
 	"encoding/json"
 	"reflect"
+
 	"xorm.io/xorm"
 )
 
@@ -19,9 +20,15 @@ type SettingSmtp struct {
 	Encryption string `json:"encryption"`
 }
 
+type SettingAuditLog struct {
+	LifeDay   int    `json:"life_day"`
+	ClearTime string `json:"clear_time"`
+}
+
 type SettingOther struct {
 	LinkAddr    string `json:"link_addr"`
 	Banner      string `json:"banner"`
+	Homeindex   string `json:"homeindex"`
 	AccountMail string `json:"account_mail"`
 }
 
@@ -63,3 +70,30 @@ func SettingGet(data interface{}) error {
 	err = json.Unmarshal(s.Data, data)
 	return err
 }
+
+func SettingGetAuditLog() (SettingAuditLog, error) {
+	data := SettingAuditLog{}
+	err := SettingGet(&data)
+	if err == nil {
+		return data, err
+	}
+	if !CheckErrNotFound(err) {
+		return data, err
+	}
+	sess := xdb.NewSession()
+	defer sess.Close()
+	auditLog := SettingGetAuditLogDefault()
+	err = SettingSessAdd(sess, auditLog)
+	if err != nil {
+		return data, err
+	}
+	return auditLog, nil
+}
+
+func SettingGetAuditLogDefault() SettingAuditLog {
+	auditLog := SettingAuditLog{
+		LifeDay:   0,
+		ClearTime: "05:00",
+	}
+	return auditLog
+}
diff --git a/anylink/server/dbdata/statsinfo.go b/anylink/server/dbdata/statsinfo.go
new file mode 100644
index 0000000..cef60be
--- /dev/null
+++ b/anylink/server/dbdata/statsinfo.go
@@ -0,0 +1,253 @@
+package dbdata
+
+import (
+	"container/list"
+	"errors"
+	"fmt"
+	"strconv"
+	"sync"
+	"time"
+
+	"github.com/bjdgyc/anylink/base"
+)
+
+const (
+	LayoutTimeFormat    = "2006-01-02 15:04:05"
+	LayoutTimeFormatMin = "2006-01-02 15:04"
+	RealTimeMaxSize     = 120 // 实时数据最大保存条数
+)
+
+type StatsInfo struct {
+	RealtimeData map[string]*list.List
+	Actions      []string
+	Scopes       []string
+	mux          sync.Mutex
+}
+
+type ScopeDetail struct {
+	sTime   time.Time
+	eTime   time.Time
+	minutes int
+	fsTime  string
+	feTime  string
+}
+
+var StatsInfoIns *StatsInfo
+
+func init() {
+	StatsInfoIns = &StatsInfo{
+		Actions:      []string{"online", "network", "cpu", "mem"},
+		Scopes:       []string{"rt", "1h", "24h", "3d", "7d", "30d"},
+		RealtimeData: make(map[string]*list.List),
+	}
+	for _, v := range StatsInfoIns.Actions {
+		StatsInfoIns.RealtimeData[v] = list.New()
+	}
+}
+
+// 校验统计类型值
+func (s *StatsInfo) ValidAction(action string) bool {
+	for _, item := range s.Actions {
+		if item == action {
+			return true
+		}
+	}
+	return false
+}
+
+// 校验日期范围值
+func (s *StatsInfo) ValidScope(scope string) bool {
+	for _, item := range s.Scopes {
+		if item == scope {
+			return true
+		}
+	}
+	return false
+}
+
+// 设置实时统计数据
+func (s *StatsInfo) SetRealTime(action string, val interface{}) {
+	s.mux.Lock()
+	defer s.mux.Unlock()
+
+	if s.RealtimeData[action].Len() >= RealTimeMaxSize {
+		ele := s.RealtimeData[action].Front()
+		s.RealtimeData[action].Remove(ele)
+	}
+	s.RealtimeData[action].PushBack(val)
+}
+
+// 获取实时统计数据
+func (s *StatsInfo) GetRealTime(action string) (res []interface{}) {
+	s.mux.Lock()
+	defer s.mux.Unlock()
+
+	for e := s.RealtimeData[action].Front(); e != nil; e = e.Next() {
+		res = append(res, e.Value)
+	}
+	return
+}
+
+// 保存数据至数据库
+func (s *StatsInfo) SaveStatsInfo(so StatsOnline, sn StatsNetwork, sc StatsCpu, sm StatsMem) {
+	if so.Num != 0 {
+		_ = Add(so)
+	}
+	if sn.Up != 0 || sn.Down != 0 {
+		_ = Add(sn)
+	}
+	if sc.Percent != 0 {
+		_ = Add(sc)
+	}
+	if sm.Percent != 0 {
+		_ = Add(sm)
+	}
+}
+
+// 获取统计数据
+func (s *StatsInfo) GetData(action string, scope string) (res []interface{}, err error) {
+	if scope == "rt" {
+		return s.GetRealTime(action), nil
+	}
+	statsMaps := make(map[string]interface{})
+	currSec := fmt.Sprintf("%02d", time.Now().Second())
+
+	// 获取时间段数据
+	sd := s.getScopeDetail(scope)
+	timeList := s.getTimeList(sd)
+	res = make([]interface{}, len(timeList))
+
+	// 获取数据库查询条件
+	where := s.getStatsWhere(sd)
+	if where == "" {
+		return nil, errors.New("不支持的数据库类型: " + base.Cfg.DbType)
+	}
+	// 查询数据表
+	switch action {
+	case "online":
+		statsRes := []StatsOnline{}
+		FindWhere(&statsRes, 0, 0, where, sd.fsTime, sd.feTime)
+		for _, v := range statsRes {
+			t := v.CreatedAt.Format(LayoutTimeFormatMin)
+			statsMaps[t] = v
+		}
+	case "network":
+		statsRes := []StatsNetwork{}
+		FindWhere(&statsRes, 0, 0, where, sd.fsTime, sd.feTime)
+		for _, v := range statsRes {
+			t := v.CreatedAt.Format(LayoutTimeFormatMin)
+			statsMaps[t] = v
+		}
+	case "cpu":
+		statsRes := []StatsCpu{}
+		FindWhere(&statsRes, 0, 0, where, sd.fsTime, sd.feTime)
+		for _, v := range statsRes {
+			t := v.CreatedAt.Format(LayoutTimeFormatMin)
+			statsMaps[t] = v
+		}
+	case "mem":
+		statsRes := []StatsMem{}
+		FindWhere(&statsRes, 0, 0, where, sd.fsTime, sd.feTime)
+		for _, v := range statsRes {
+			t := v.CreatedAt.Format(LayoutTimeFormatMin)
+			statsMaps[t] = v
+		}
+	}
+	// 整合数据
+	for i, v := range timeList {
+		if mv, ok := statsMaps[v]; ok {
+			res[i] = mv
+			continue
+		}
+		t, _ := time.ParseInLocation(LayoutTimeFormat, v+":"+currSec, time.Local)
+		switch action {
+		case "online":
+			res[i] = StatsOnline{CreatedAt: t}
+		case "network":
+			res[i] = StatsNetwork{CreatedAt: t}
+		case "cpu":
+			res[i] = StatsCpu{CreatedAt: t}
+		case "mem":
+			res[i] = StatsMem{CreatedAt: t}
+		}
+	}
+	return
+}
+
+// 获取日期范围的明细值
+func (s *StatsInfo) getScopeDetail(scope string) (sd *ScopeDetail) {
+	sd = &ScopeDetail{}
+	t := time.Now()
+	sd.eTime = time.Date(t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), 59, t.Nanosecond(), time.Local)
+	sd.minutes = 0
+	switch scope {
+	case "1h":
+		sd.sTime = sd.eTime.Add(-time.Minute * 60)
+		sd.minutes = 1
+	case "24h":
+		sd.sTime = sd.eTime.AddDate(0, 0, -1)
+		sd.minutes = 5
+	case "7d":
+		sd.sTime = sd.eTime.AddDate(0, 0, -7)
+		sd.minutes = 30
+	case "30d":
+		sd.sTime = sd.eTime.AddDate(0, 0, -30)
+		sd.minutes = 150
+	}
+	if sd.minutes != 0 {
+		sd.sTime = sd.sTime.Add(-time.Minute * time.Duration(sd.minutes))
+	}
+	sd.fsTime = sd.sTime.Format(LayoutTimeFormat)
+	sd.feTime = sd.eTime.Format(LayoutTimeFormat)
+	// UTC
+	switch base.Cfg.DbType {
+	case "sqlite3", "postgres":
+		sd.fsTime = sd.sTime.UTC().Format(LayoutTimeFormat)
+		sd.feTime = sd.eTime.UTC().Format(LayoutTimeFormat)
+	}
+	return
+}
+
+// 针对日期范围进行拆解
+func (s *StatsInfo) getTimeList(sd *ScopeDetail) []string {
+	subSec := int64(60 * sd.minutes)
+	count := (sd.eTime.Unix()-sd.sTime.Unix())/subSec - 1
+	eTime := sd.eTime.Unix() - subSec
+	timeLists := make([]string, count)
+	for i := count - 1; i >= 0; i-- {
+		timeLists[i] = time.Unix(eTime, 0).Format(LayoutTimeFormatMin)
+		eTime = eTime - subSec
+	}
+	return timeLists
+}
+
+// 获取where条件
+func (s *StatsInfo) getStatsWhere(sd *ScopeDetail) (where string) {
+	where = "created_at BETWEEN ? AND ?"
+	min := strconv.Itoa(sd.minutes)
+	switch base.Cfg.DbType {
+	case "mysql":
+		where += " AND floor(TIMESTAMPDIFF(SECOND, created_at, '" + sd.feTime + "') / 60) % " + min + " = 0"
+	case "sqlite3":
+		where += " AND CAST(ROUND((JULIANDAY('" + sd.feTime + "') - JULIANDAY(created_at)) * 86400) / 60 as integer) % " + min + " = 0"
+	case "postgres":
+		where += " AND floor((EXTRACT(EPOCH FROM " + sd.feTime + ") - EXTRACT(EPOCH FROM created_at)) / 60) % " + min + " = 0"
+	default:
+		where = ""
+	}
+	return
+}
+
+func (s *StatsInfo) ClearStatsInfo(action string, ts string) (affected int64, err error) {
+	switch action {
+	case "online":
+		affected, err = xdb.Where("created_at < '" + ts + "'").Delete(&StatsOnline{})
+	case "network":
+		affected, err = xdb.Where("created_at < '" + ts + "'").Delete(&StatsNetwork{})
+	case "cpu":
+		affected, err = xdb.Where("created_at < '" + ts + "'").Delete(&StatsCpu{})
+	case "mem":
+		affected, err = xdb.Where("created_at < '" + ts + "'").Delete(&StatsMem{})
+	}
+	return affected, err
+}
diff --git a/anylink/server/dbdata/statsinfo_test.go b/anylink/server/dbdata/statsinfo_test.go
new file mode 100644
index 0000000..261ca6a
--- /dev/null
+++ b/anylink/server/dbdata/statsinfo_test.go
@@ -0,0 +1,55 @@
+package dbdata
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestStatsInfo(t *testing.T) {
+	ast := assert.New(t)
+
+	preIpData()
+	defer closeIpdata()
+
+	ast.True(StatsInfoIns.ValidAction("online"))
+	ast.False(StatsInfoIns.ValidAction("diskio"))
+	ast.True(StatsInfoIns.ValidScope("30d"))
+	ast.False(StatsInfoIns.ValidScope("60d"))
+
+	up := uint32(100)
+	down := uint32(300)
+	upGroups := map[int]uint32{1: up}
+	downGroups := map[int]uint32{1: down}
+	numGroups := map[int]int{1: 5}
+	// online
+	numData, _ := json.Marshal(numGroups)
+	so := StatsOnline{Num: 1, NumGroups: string(numData)}
+	// network
+	upData, _ := json.Marshal(upGroups)
+	downData, _ := json.Marshal(downGroups)
+	sn := StatsNetwork{Up: up, Down: down, UpGroups: string(upData), DownGroups: string(downData)}
+	// cpu
+	sc := StatsCpu{Percent: 0.3}
+	// mem
+	sm := StatsMem{Percent: 24.50}
+
+	StatsInfoIns.SetRealTime("online", so)
+	StatsInfoIns.GetRealTime("online")
+	StatsInfoIns.SaveStatsInfo(so, sn, sc, sm)
+
+	var err error
+	_, err = StatsInfoIns.GetData("online", "1h")
+	ast.Nil(err)
+
+	_, err = StatsInfoIns.GetData("network", "1h")
+	ast.Nil(err)
+
+	_, err = StatsInfoIns.GetData("cpu", "1h")
+	ast.Nil(err)
+
+	_, err = StatsInfoIns.GetData("mem", "1h")
+	ast.Nil(err)
+
+}
diff --git a/anylink/server/dbdata/tables.go b/anylink/server/dbdata/tables.go
index 56b2dbe..e0da7e0 100644
--- a/anylink/server/dbdata/tables.go
+++ b/anylink/server/dbdata/tables.go
@@ -17,7 +17,7 @@ type Group struct {
 	DsIncludeDomains string                 `json:"ds_include_domains" xorm:"Text"`
 	LinkAcl          []GroupLinkAcl         `json:"link_acl" xorm:"Text"`
 	Bandwidth        int                    `json:"bandwidth" xorm:"Int"`                           // 带宽限制
-	Auth             map[string]interface{} `json:"auth" xorm:"not null default '{}' varchar(255)"` // 认证方式
+	Auth             map[string]interface{} `json:"auth" xorm:"not null default '{}' varchar(500)"` // 认证方式
 	Status           int8                   `json:"status" xorm:"Int"`                              // 1正常
 	CreatedAt        time.Time              `json:"created_at" xorm:"DateTime created"`
 	UpdatedAt        time.Time              `json:"updated_at" xorm:"DateTime updated"`
@@ -47,7 +47,7 @@ type IpMap struct {
 	Keep      bool      `json:"keep" xorm:"Bool"` // 保留 ip-mac 绑定
 	KeepTime  time.Time `json:"keep_time" xorm:"DateTime"`
 	Note      string    `json:"note" xorm:"varchar(255)"` // 备注
-	LastLogin time.Time `json:"last_login" xorm:"DateTime updated"`
+	LastLogin time.Time `json:"last_login" xorm:"DateTime"`
 	UpdatedAt time.Time `json:"updated_at" xorm:"DateTime updated"`
 }
 
@@ -59,14 +59,16 @@ type Setting struct {
 }
 
 type AccessAudit struct {
-	Id        int       `json:"id" xorm:"pk autoincr not null"`
-	Username  string    `json:"username" xorm:"varchar(60) not null"`
-	Protocol  uint8     `json:"protocol" xorm:"not null"`
-	Src       string    `json:"src" xorm:"varchar(60) not null"`
-	SrcPort   uint16    `json:"src_port" xorm:"not null"`
-	Dst       string    `json:"dst" xorm:"varchar(60) not null"`
-	DstPort   uint16    `json:"dst_port" xorm:"not null"`
-	CreatedAt time.Time `json:"created_at" xorm:"DateTime"`
+	Id          int       `json:"id" xorm:"pk autoincr not null"`
+	Username    string    `json:"username" xorm:"varchar(60) not null"`
+	Protocol    uint8     `json:"protocol" xorm:"not null"`
+	Src         string    `json:"src" xorm:"varchar(60) not null"`
+	SrcPort     uint16    `json:"src_port" xorm:"not null"`
+	Dst         string    `json:"dst" xorm:"varchar(60) not null"`
+	DstPort     uint16    `json:"dst_port" xorm:"not null"`
+	AccessProto uint8     `json:"access_proto" xorm:"default 0"`                // 访问协议
+	Info        string    `json:"info" xorm:"varchar(255) not null default ''"` // 详情
+	CreatedAt   time.Time `json:"created_at" xorm:"DateTime"`
 }
 
 type Policy struct {
@@ -82,3 +84,31 @@ type Policy struct {
 	CreatedAt        time.Time `json:"created_at" xorm:"DateTime created"`
 	UpdatedAt        time.Time `json:"updated_at" xorm:"DateTime updated"`
 }
+
+type StatsOnline struct {
+	Id        int       `json:"id" xorm:"pk autoincr not null"`
+	Num       int       `json:"num" xorm:"Int"`
+	NumGroups string    `json:"num_groups" xorm:"varchar(500) not null"`
+	CreatedAt time.Time `json:"created_at" xorm:"DateTime created index"`
+}
+
+type StatsNetwork struct {
+	Id         int       `json:"id" xorm:"pk autoincr not null"`
+	Up         uint32    `json:"up" xorm:"Int"`
+	Down       uint32    `json:"down" xorm:"Int"`
+	UpGroups   string    `json:"up_groups" xorm:"varchar(500) not null"`
+	DownGroups string    `json:"down_groups" xorm:"varchar(500) not null"`
+	CreatedAt  time.Time `json:"created_at" xorm:"DateTime created index"`
+}
+
+type StatsCpu struct {
+	Id        int       `json:"id" xorm:"pk autoincr not null"`
+	Percent   float64   `json:"percent" xorm:"Float"`
+	CreatedAt time.Time `json:"created_at" xorm:"DateTime created index"`
+}
+
+type StatsMem struct {
+	Id        int       `json:"id" xorm:"pk autoincr not null"`
+	Percent   float64   `json:"percent" xorm:"Float"`
+	CreatedAt time.Time `json:"created_at" xorm:"DateTime created index"`
+}
diff --git a/anylink/server/dbdata/user_test.go b/anylink/server/dbdata/user_test.go
index 8e46dcc..d9f3a69 100644
--- a/anylink/server/dbdata/user_test.go
+++ b/anylink/server/dbdata/user_test.go
@@ -56,7 +56,6 @@ func TestCheckUser(t *testing.T) {
 	err = CheckUser("aaa", "bbbbbbb", group2)
 	if ast.NotNil(err) {
 		ast.Equal("aaa Radius服务器连接异常, 请检测服务器和端口", err.Error())
-
 	}
 	// 添加用户策略
 	dns2 := []ValData{{Val: "8.8.8.8"}}
@@ -66,4 +65,25 @@ func TestCheckUser(t *testing.T) {
 	ast.Nil(err)
 	err = CheckUser("aaa", u.PinCode, group)
 	ast.Nil(err)
+	// 添加一个ldap组
+	group3 := "group3"
+	authData = map[string]interface{}{
+		"type": "ldap",
+		"ldap": map[string]interface{}{
+			"addr":        "192.168.8.12:389",
+			"tls":         true,
+			"bind_name":   "userfind@abc.com",
+			"bind_pwd":    "afdbfdsafds",
+			"base_dn":     "dc=abc,dc=com",
+			"search_attr": "sAMAccountName",
+			"member_of":   "cn=vpn,cn=user,dc=abc,dc=com",
+		},
+	}
+	g3 := Group{Name: group3, Status: 1, ClientDns: dns, RouteInclude: route, Auth: authData}
+	err = SetGroup(&g3)
+	ast.Nil(err)
+	err = CheckUser("aaa", "bbbbbbb", group3)
+	if ast.NotNil(err) {
+		ast.Equal("aaa LDAP服务器连接异常, 请检测服务器和端口", err.Error())
+	}
 }
diff --git a/anylink/server/dbdata/userauth_ldap.go b/anylink/server/dbdata/userauth_ldap.go
new file mode 100644
index 0000000..1ade05f
--- /dev/null
+++ b/anylink/server/dbdata/userauth_ldap.go
@@ -0,0 +1,136 @@
+package dbdata
+
+import (
+	"crypto/tls"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net"
+	"reflect"
+	"regexp"
+	"time"
+
+	"github.com/go-ldap/ldap"
+)
+
+type AuthLdap struct {
+	Addr       string `json:"addr"`
+	Tls        bool   `json:"tls"`
+	BindName   string `json:"bind_name"`
+	BindPwd    string `json:"bind_pwd"`
+	BaseDn     string `json:"base_dn"`
+	SearchAttr string `json:"search_attr"`
+	MemberOf   string `json:"member_of"`
+}
+
+func init() {
+	authRegistry["ldap"] = reflect.TypeOf(AuthLdap{})
+}
+
+func (auth AuthLdap) checkData(authData map[string]interface{}) error {
+	authType := authData["type"].(string)
+	bodyBytes, err := json.Marshal(authData[authType])
+	if err != nil {
+		return errors.New("LDAP配置填写有误")
+	}
+	json.Unmarshal(bodyBytes, &auth)
+	// 支持域名和IP, 必须填写端口
+	if !ValidateIpPort(auth.Addr) && !ValidateDomainPort(auth.Addr) {
+		return errors.New("LDAP的服务器地址(含端口)填写有误")
+	}
+	if auth.BindName == "" {
+		return errors.New("LDAP的管理员账号不能为空")
+	}
+	if auth.BindPwd == "" {
+		return errors.New("LDAP的管理员密码不能为空")
+	}
+	if auth.BaseDn == "" || !ValidateDN(auth.BaseDn) {
+		return errors.New("LDAP的Base DN填写有误")
+	}
+	if auth.SearchAttr == "" {
+		return errors.New("LDAP的用户唯一ID不能为空")
+	}
+	if auth.MemberOf != "" && !ValidateDN(auth.MemberOf) {
+		return errors.New("LDAP的受限用户组填写有误")
+	}
+	return nil
+}
+
+func (auth AuthLdap) checkUser(name, pwd string, g *Group) error {
+	pl := len(pwd)
+	if name == "" || pl < 1 {
+		return fmt.Errorf("%s %s", name, "密码错误")
+	}
+	authType := g.Auth["type"].(string)
+	if _, ok := g.Auth[authType]; !ok {
+		return fmt.Errorf("%s %s", name, "LDAP的ldap值不存在")
+	}
+	bodyBytes, err := json.Marshal(g.Auth[authType])
+	if err != nil {
+		return fmt.Errorf("%s %s", name, "LDAP Marshal出现错误")
+	}
+	err = json.Unmarshal(bodyBytes, &auth)
+	if err != nil {
+		return fmt.Errorf("%s %s", name, "LDAP Unmarshal出现错误")
+	}
+	// 检测服务器和端口的可用性
+	con, err := net.DialTimeout("tcp", auth.Addr, 3*time.Second)
+	if err != nil {
+		return fmt.Errorf("%s %s", name, "LDAP服务器连接异常, 请检测服务器和端口")
+	}
+	defer con.Close()
+	// 连接LDAP
+	l, err := ldap.Dial("tcp", auth.Addr)
+	if err != nil {
+		return fmt.Errorf("LDAP连接失败 %s %s", auth.Addr, err.Error())
+	}
+	defer l.Close()
+	if auth.Tls {
+		err = l.StartTLS(&tls.Config{InsecureSkipVerify: true})
+		if err != nil {
+			return fmt.Errorf("%s LDAP TLS连接失败 %s", name, err.Error())
+		}
+	}
+	err = l.Bind(auth.BindName, auth.BindPwd)
+	if err != nil {
+		return fmt.Errorf("%s LDAP 管理员账号或密码填写有误 %s", name, err.Error())
+	}
+	filterAttr := "(objectClass=person)"
+	filterAttr += "(" + auth.SearchAttr + "=" + name + ")"
+	if auth.MemberOf != "" {
+		filterAttr += "(memberOf:=" + auth.MemberOf + ")"
+	}
+	searchRequest := ldap.NewSearchRequest(
+		auth.BaseDn,
+		ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 3, false,
+		fmt.Sprintf("(&%s)", filterAttr),
+		[]string{},
+		nil,
+	)
+	sr, err := l.Search(searchRequest)
+	if err != nil {
+		return fmt.Errorf("%s LDAP 查询失败 %s %s %s", name, auth.BaseDn, filterAttr, err.Error())
+	}
+	if len(sr.Entries) != 1 {
+		if len(sr.Entries) == 0 {
+			return fmt.Errorf("LDAP 找不到 %s 用户, 请检查用户或LDAP配置参数", name)
+		}
+		return fmt.Errorf("LDAP发现 %s 用户，存在多个账号", name)
+	}
+	userDN := sr.Entries[0].DN
+	err = l.Bind(userDN, pwd)
+	if err != nil {
+		return fmt.Errorf("%s LDAP 登入失败，请检查登入的账号或密码 %s", name, err.Error())
+	}
+	return nil
+}
+
+func ValidateDomainPort(addr string) bool {
+	re := regexp.MustCompile(`^([a-zA-Z0-9][-a-zA-Z0-9]{0,62}\.)+[A-Za-z]{2,18}\:([0-9]|[1-9]\d{1,3}|[1-5]\d{4}|6[0-5]{2}[0-3][0-5])$`)
+	return re.MatchString(addr)
+}
+
+func ValidateDN(dn string) bool {
+	re := regexp.MustCompile(`^(?:(?:CN|cn|OU|ou|DC|dc)\=[^,'"]+,)*(?:CN|cn|OU|ou|DC|dc)\=[^,'"]+$`)
+	return re.MatchString(dn)
+}
diff --git a/anylink/server/go.mod b/anylink/server/go.mod
index 4f3d552..acc9e92 100644
--- a/anylink/server/go.mod
+++ b/anylink/server/go.mod
@@ -1,16 +1,22 @@
 module github.com/bjdgyc/anylink
 
-go 1.16
+go 1.18
 
 require (
-	github.com/StackExchange/wmi v1.2.1 // indirect
+	github.com/arl/statsviz v0.5.1
+	github.com/go-co-op/gocron v1.17.0
+	github.com/go-ldap/ldap v3.0.3+incompatible
 	github.com/go-sql-driver/mysql v1.6.0
+	github.com/gocarina/gocsv v0.0.0-20220712153207-8b2118da4570
 	github.com/golang-jwt/jwt/v4 v4.0.0
 	github.com/google/gopacket v1.1.19
+	github.com/gorilla/handlers v1.5.1
 	github.com/gorilla/mux v1.8.0
+	github.com/ivpusic/grpool v1.0.0
 	github.com/lib/pq v1.10.2
 	github.com/mattn/go-sqlite3 v1.14.8
-	github.com/pion/dtls/v2 v2.0.9
+	github.com/orcaman/concurrent-map v1.0.0
+	github.com/pion/dtls/v2 v2.1.5
 	github.com/pion/logging v0.2.2
 	github.com/shirou/gopsutil v3.21.7+incompatible
 	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
@@ -18,15 +24,52 @@ require (
 	github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8
 	github.com/spf13/cobra v1.2.1
 	github.com/spf13/viper v1.8.1
-	github.com/stretchr/testify v1.7.0
-	github.com/tklauser/go-sysconf v0.3.7 // indirect
+	github.com/stretchr/testify v1.8.0
 	github.com/xhit/go-simple-mail/v2 v2.10.0
 	github.com/xlzd/gotp v0.0.0-20181030022105-c8557ba2c119
-	golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97
-	golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d
+	go.uber.org/atomic v1.10.0
+	golang.org/x/crypto v0.0.0-20220427172511-eb4f295cb31f
+	golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4
+	golang.org/x/text v0.3.7
 	golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac
 	layeh.com/radius v0.0.0-20210819152912-ad72663a72ab
 	xorm.io/xorm v1.2.2
 )
 
-replace github.com/pion/dtls/v2 => ../dtls-2.0.9
+require (
+	github.com/StackExchange/wmi v1.2.1 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/felixge/httpsnoop v1.0.1 // indirect
+	github.com/fsnotify/fsnotify v1.4.9 // indirect
+	github.com/go-ole/go-ole v1.2.5 // indirect
+	github.com/goccy/go-json v0.7.4 // indirect
+	github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db // indirect
+	github.com/gorilla/websocket v1.4.2 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.11 // indirect
+	github.com/magiconair/properties v1.8.5 // indirect
+	github.com/mitchellh/mapstructure v1.4.1 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.1 // indirect
+	github.com/pelletier/go-toml v1.9.3 // indirect
+	github.com/pion/transport v0.13.0 // indirect
+	github.com/pion/udp v0.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/robfig/cron/v3 v3.0.1 // indirect
+	github.com/spf13/afero v1.6.0 // indirect
+	github.com/spf13/cast v1.3.1 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/subosito/gotenv v1.2.0 // indirect
+	github.com/syndtr/goleveldb v1.0.0 // indirect
+	github.com/tklauser/go-sysconf v0.3.7 // indirect
+	github.com/tklauser/numcpus v0.2.3 // indirect
+	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
+	golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e // indirect
+	gopkg.in/asn1-ber.v1 v1.0.0-20181015200546-f715ec2f112d // indirect
+	gopkg.in/ini.v1 v1.62.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	xorm.io/builder v0.3.9 // indirect
+)
diff --git a/anylink/server/go.sum b/anylink/server/go.sum
index 089a38c..aa2f83a 100644
--- a/anylink/server/go.sum
+++ b/anylink/server/go.sum
@@ -56,6 +56,8 @@ github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRF
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
 github.com/apache/thrift v0.13.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
+github.com/arl/statsviz v0.5.1 h1:3HY0ZEB738JtguWsD1Tf1pFJZiCcWUmYRq/3OTYKaSI=
+github.com/arl/statsviz v0.5.1/go.mod h1:zDnjgRblGm1Dyd7J5YlbH7gM1/+HRC+SfkhZhQb5AnM=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
@@ -113,18 +115,24 @@ github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.m
 github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
+github.com/felixge/httpsnoop v1.0.1 h1:lvB5Jl89CsZtGIWuTcDM1E/vkVs49/Ml7JJe07l8SPQ=
+github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
 github.com/franela/goblin v0.0.0-20200105215937-c9ffbefa60db/go.mod h1:7dvUGVsVBjqR7JHJk0brhHOZYGmfBYOrK0ZhYMEtBr4=
 github.com/franela/goreq v0.0.0-20171204163338-bcd34c9993f8/go.mod h1:ZhphrRTfi2rbfLwlschooIH4+wKKDR4Pdxhh+TRoA20=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
+github.com/go-co-op/gocron v1.17.0 h1:IixLXsti+Qo0wMvmn6Kmjp2csk2ykpkcL+EmHmST18w=
+github.com/go-co-op/gocron v1.17.0/go.mod h1:IpDBSaJOVfFw7hXZuTag3SCSkqazXBBUkbQ1m1aesBs=
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.10.0/go.mod h1:xUsJbQ/Fp4kEt7AFgCuvyX4a71u8h9jB8tj/ORgOZ7o=
+github.com/go-ldap/ldap v3.0.3+incompatible h1:HTeSZO8hWMS1Rgb2Ziku6b8a7qRIZZMHjsvuZyatzwk=
+github.com/go-ldap/ldap v3.0.3+incompatible/go.mod h1:qfd9rJvER9Q0/D/Sqn1DfHRoBp40uXYvFoEVrNEPqRc=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
@@ -134,6 +142,8 @@ github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG
 github.com/go-sql-driver/mysql v1.6.0 h1:BCTh4TKNUYmOmMUcQ3IipzF5prigylS7XXjEkfCHuOE=
 github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
+github.com/gocarina/gocsv v0.0.0-20220712153207-8b2118da4570 h1:n4E8KiBgNvYdtjgJbAqKov2IFv7tDkULV/2Ld3wj5Hg=
+github.com/gocarina/gocsv v0.0.0-20220712153207-8b2118da4570/go.mod h1:5YoVOkjYAQumqlV356Hj3xeYh4BdZuLE0/nRkf2NKkI=
 github.com/goccy/go-json v0.7.4 h1:B44qRUFwz/vxPKPISQ1KhvzRi9kZ28RAf6YtjriBZ5k=
 github.com/goccy/go-json v0.7.4/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
@@ -217,11 +227,15 @@ github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5m
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gorilla/context v1.1.1/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51q0aT7Yg=
+github.com/gorilla/handlers v1.5.1 h1:9lRY6j8DEeeBT10CvO9hGW0gmky0BprnvDI5vfhUHH4=
+github.com/gorilla/handlers v1.5.1/go.mod h1:t8XrUpc4KVXb7HGyJ4/cEnwQiaxrX/hz1Zv/4g96P1Q=
 github.com/gorilla/mux v1.6.2/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
 github.com/gorilla/mux v1.7.3/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
 github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
 github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
 github.com/gorilla/websocket v0.0.0-20170926233335-4201258b820c/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
+github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
+github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/grpc-ecosystem/go-grpc-middleware v1.0.1-0.20190118093823-f849b5445de4/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
 github.com/grpc-ecosystem/grpc-gateway v1.9.5/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
@@ -258,6 +272,8 @@ github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:
 github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/influxdata/influxdb1-client v0.0.0-20191209144304-8bf82d3c094d/go.mod h1:qj24IKcXYK6Iy9ceXlo3Tc+vtHo9lIhSX5JddghvEPo=
+github.com/ivpusic/grpool v1.0.0 h1:+FCiCo3GhfsvzfXuJWnpJUNb/VaqyYVgG8C+qvh07Rc=
+github.com/ivpusic/grpool v1.0.0/go.mod h1:WPmiAI5ExAn06vg+0JzyPzXMQutJmpb7TrBtyLJkOHQ=
 github.com/jackc/chunkreader v1.0.0/go.mod h1:RT6O25fNZIuasFJRyZ4R/Y2BbhasbmZXF9QQ7T3kePo=
 github.com/jackc/chunkreader/v2 v2.0.0/go.mod h1:odVSm741yZoC3dpHEUXIqA9tQRhFrgOHwnPIn9lDKlk=
 github.com/jackc/chunkreader/v2 v2.0.1/go.mod h1:odVSm741yZoC3dpHEUXIqA9tQRhFrgOHwnPIn9lDKlk=
@@ -401,6 +417,8 @@ github.com/openzipkin-contrib/zipkin-go-opentracing v0.4.5/go.mod h1:/wsWhb9smxS
 github.com/openzipkin/zipkin-go v0.1.6/go.mod h1:QgAqvLzwWbR/WpD4A3cGpPtJrZXNIiJc5AZX7/PBEpw=
 github.com/openzipkin/zipkin-go v0.2.1/go.mod h1:NaW6tEwdmWMaCDZzg8sh+IBNOxHMPnhQw8ySjnjRyN4=
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@@ -409,11 +427,13 @@ github.com/pelletier/go-toml v1.9.3/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCko
 github.com/performancecopilot/speed v3.0.0+incompatible/go.mod h1:/CLtqpZ5gBg1M9iaPbIdPPGyKcA8hKdoy6hAWba7Yac=
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 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
@@ -442,6 +462,8 @@ github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+Gx
 github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 h1:OdAsTTz6OkFY5QxjkYwrChwuRruF69c169dPK26NUlk=
 github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+github.com/robfig/cron/v3 v3.0.1 h1:WdRxkvbJztn8LMz/QEvLN5sBU+xKpSqwwUO1Pjr4qDs=
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 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
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@@ -494,13 +516,16 @@ github.com/streadway/handy v0.0.0-20190108123426-d5acb3125c2a/go.mod h1:qNTQ5P5J
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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@@ -543,6 +568,8 @@ go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.5.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
 go.uber.org/atomic v1.6.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
+go.uber.org/atomic v1.10.0 h1:9qC72Qh0+3MqyJbAn8YU5xVq1frD8bn3JtD2oXtafVQ=
+go.uber.org/atomic v1.10.0/go.mod h1:LUxbIzbOniOlMKjJjyPfpl4v+PKK2cNJn91OQbhoJI0=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
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 go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU=
@@ -569,8 +596,8 @@ golang.org/x/crypto v0.0.0-20200709230013-948cd5f35899/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20201203163018-be400aefbc4c/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
 golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
 golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 h1:/UOmuWzQfxxo9UtlXMwuQU8CMgg1eZXqTRwkSQJWKOI=
-golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
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@@ -649,10 +676,11 @@ golang.org/x/net v0.0.0-20201209123823-ac852fbbde11/go.mod h1:m0MpNAwzfU5UDzcl9v
 golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
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@@ -675,6 +703,7 @@ golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJ
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@@ -735,10 +764,12 @@ golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -746,8 +777,9 @@ golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
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-golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
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+golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
+golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
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@@ -932,6 +964,8 @@ google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlba
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+gopkg.in/asn1-ber.v1 v1.0.0-20181015200546-f715ec2f112d h1:TxyelI5cVkbREznMhfzycHdkp5cLA7DpE+GKjSslYhM=
+gopkg.in/asn1-ber.v1 v1.0.0-20181015200546-f715ec2f112d/go.mod h1:cuepJuh7vyXfUyUwEgHQXw849cJrilpS5NeIjOWESAw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -955,8 +989,9 @@ gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
diff --git a/anylink/server/handler/dtls.go b/anylink/server/handler/dtls.go
index d897923..7501246 100644
--- a/anylink/server/handler/dtls.go
+++ b/anylink/server/handler/dtls.go
@@ -4,7 +4,7 @@ import (
 	"context"
 	"crypto/tls"
 	"encoding/hex"
-	"fmt"
+	"errors"
 	"net"
 	"time"
 
@@ -15,11 +15,6 @@ import (
 	"github.com/pion/logging"
 )
 
-// 因本项目对 github.com/pion/dtls 的代码，进行了大量的修改
-// 且短时间内无法合并到上游项目
-// 所以本项目暂时copy了一份代码
-// 最后,感谢 github.com/pion/dtls 对golang生态做出的贡献
-
 func startDtls() {
 	if !base.Cfg.ServerDTLS {
 		return
@@ -34,6 +29,9 @@ func startDtls() {
 	// logf.DefaultLogLevel = logging.LogLevelTrace
 	logf.DefaultLogLevel = logging.LogLevelInfo
 
+	// https://github.com/pion/dtls/pull/369
+	sessStore := &sessionStore{}
+
 	config := &dtls.Config{
 		Certificates:         []tls.Certificate{certificate},
 		InsecureSkipVerify:   true,
@@ -41,13 +39,7 @@ func startDtls() {
 		CipherSuites:         []dtls.CipherSuiteID{dtls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
 		LoggerFactory:        logf,
 		MTU:                  BufferSize,
-		CiscoCompat: func(sessid []byte) ([]byte, error) {
-			masterSecret := sessdata.Dtls2MasterSecret(hex.EncodeToString(sessid))
-			if masterSecret == "" {
-				return nil, fmt.Errorf("masterSecret is err")
-			}
-			return hex.DecodeString(masterSecret)
-		},
+		SessionStore:         sessStore,
 		ConnectContextMaker: func() (context.Context, func()) {
 			return context.WithTimeout(context.Background(), 5*time.Second)
 		},
@@ -80,3 +72,25 @@ func startDtls() {
 		}()
 	}
 }
+
+// https://github.com/pion/dtls/blob/master/session.go
+type sessionStore struct{}
+
+func (ms *sessionStore) Set(key []byte, s dtls.Session) error {
+	return nil
+}
+
+func (ms *sessionStore) Get(key []byte) (dtls.Session, error) {
+	k := hex.EncodeToString(key)
+	secret := sessdata.Dtls2MasterSecret(k)
+	if secret == "" {
+		return dtls.Session{}, errors.New("Dtls2MasterSecret is nil")
+	}
+
+	masterSecret, _ := hex.DecodeString(secret)
+	return dtls.Session{ID: key, Secret: masterSecret}, nil
+}
+
+func (ms *sessionStore) Del(key []byte) error {
+	return nil
+}
diff --git a/anylink/server/handler/link_auth.go b/anylink/server/handler/link_auth.go
index d1740af..5a8138d 100644
--- a/anylink/server/handler/link_auth.go
+++ b/anylink/server/handler/link_auth.go
@@ -1,10 +1,11 @@
 package handler
 
 import (
+	"crypto/md5"
 	"encoding/xml"
 	"fmt"
 	"io"
-	"io/ioutil"
+	"net"
 	"net/http"
 	"strings"
 	"text/template"
@@ -28,7 +29,7 @@ func LinkAuth(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	body, err := ioutil.ReadAll(r.Body)
+	body, err := io.ReadAll(r.Body)
 	if err != nil {
 		w.WriteHeader(http.StatusBadRequest)
 		return
@@ -88,6 +89,20 @@ func LinkAuth(w http.ResponseWriter, r *http.Request) {
 	sess.Group = cr.GroupSelect
 	sess.MacAddr = strings.ToLower(cr.MacAddressList.MacAddress)
 	sess.UniqueIdGlobal = cr.DeviceId.UniqueIdGlobal
+	// 获取客户端mac地址
+	macHw, err := net.ParseMAC(sess.MacAddr)
+	if err != nil {
+		var sum [16]byte
+		if sess.UniqueIdGlobal != "" {
+			sum = md5.Sum([]byte(sess.UniqueIdGlobal))
+		} else {
+			sum = md5.Sum([]byte(sess.Token))
+		}
+		macHw = sum[0:5] // 5个byte
+		macHw = append([]byte{0x02}, macHw...)
+		sess.MacAddr = macHw.String()
+	}
+	sess.MacHw = macHw
 	other := &dbdata.SettingOther{}
 	_ = dbdata.SettingGet(other)
 	rd := RequestData{SessionId: sess.Sid, SessionToken: sess.Sid + "@" + sess.Token,
@@ -188,39 +203,40 @@ var auth_complete = `<?xml version="1.0" encoding="UTF-8"?>
 </config-auth>
 `
 
-var auth_profile = `<?xml version="1.0" encoding="UTF-8"?>
-<AnyConnectProfile xmlns="http://schemas.xmlsoap.org/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://schemas.xmlsoap.org/encoding/ AnyConnectProfile.xsd">
+// var auth_profile = `<?xml version="1.0" encoding="UTF-8"?>
+// <AnyConnectProfile xmlns="http://schemas.xmlsoap.org/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://schemas.xmlsoap.org/encoding/ AnyConnectProfile.xsd">
 
-	<ClientInitialization>
-		<UseStartBeforeLogon UserControllable="false">false</UseStartBeforeLogon>
-		<StrictCertificateTrust>false</StrictCertificateTrust>
-		<RestrictPreferenceCaching>false</RestrictPreferenceCaching>
-		<RestrictTunnelProtocols>IPSec</RestrictTunnelProtocols>
-		<BypassDownloader>true</BypassDownloader>
-		<WindowsVPNEstablishment>AllowRemoteUsers</WindowsVPNEstablishment>
-		<CertEnrollmentPin>pinAllowed</CertEnrollmentPin>
-		<CertificateMatch>
-			<KeyUsage>
-				<MatchKey>Digital_Signature</MatchKey>
-			</KeyUsage>
-			<ExtendedKeyUsage>
-				<ExtendedMatchKey>ClientAuth</ExtendedMatchKey>
-			</ExtendedKeyUsage>
-		</CertificateMatch>
+// 	<ClientInitialization>
+// 		<UseStartBeforeLogon UserControllable="false">false</UseStartBeforeLogon>
+// 		<StrictCertificateTrust>false</StrictCertificateTrust>
+// 		<RestrictPreferenceCaching>false</RestrictPreferenceCaching>
+// 		<RestrictTunnelProtocols>IPSec</RestrictTunnelProtocols>
+// 		<BypassDownloader>true</BypassDownloader>
+// 		<WindowsVPNEstablishment>AllowRemoteUsers</WindowsVPNEstablishment>
+// 		<CertEnrollmentPin>pinAllowed</CertEnrollmentPin>
+// 		<CertificateMatch>
+// 			<KeyUsage>
+// 				<MatchKey>Digital_Signature</MatchKey>
+// 			</KeyUsage>
+// 			<ExtendedKeyUsage>
+// 				<ExtendedMatchKey>ClientAuth</ExtendedMatchKey>
+// 			</ExtendedKeyUsage>
+// 		</CertificateMatch>
 
-		<BackupServerList>
-	            <HostAddress>localhost</HostAddress>
-		</BackupServerList>
-	</ClientInitialization>
+// 		<BackupServerList>
+// 	            <HostAddress>localhost</HostAddress>
+// 		</BackupServerList>
+// 	</ClientInitialization>
 
-	<ServerList>
-		<HostEntry>
-	            <HostName>VPN Server</HostName>
-	            <HostAddress>localhost</HostAddress>
-		</HostEntry>
-	</ServerList>
-</AnyConnectProfile>
-`
+//	<ServerList>
+//		<HostEntry>
+//	            <HostName>VPN Server</HostName>
+//	            <HostAddress>localhost</HostAddress>
+//		</HostEntry>
+//	</ServerList>
+//
+// </AnyConnectProfile>
+// `
 var ds_domains_xml = `
 <?xml version="1.0" encoding="UTF-8"?>
 <config-auth client="vpn" type="complete" aggregate-auth-version="2">
diff --git a/anylink/server/handler/link_base.go b/anylink/server/handler/link_base.go
index b62937f..17efbb3 100644
--- a/anylink/server/handler/link_base.go
+++ b/anylink/server/handler/link_base.go
@@ -25,8 +25,9 @@ type ClientRequest struct {
 }
 
 type auth struct {
-	Username string `xml:"username"`
-	Password string `xml:"password"`
+	Username          string `xml:"username"`
+	Password          string `xml:"password"`
+	SecondaryPassword string `xml:"secondary_password"`
 }
 
 type deviceId struct {
@@ -44,11 +45,20 @@ type macAddressList struct {
 func setCommonHeader(w http.ResponseWriter) {
 	// Content-Length Date 默认已经存在
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")
-	w.Header().Set("Cache-Control", "no-store")
+	w.Header().Set("Cache-Control", "no-store,no-cache")
 	w.Header().Set("Pragma", "no-cache")
 	w.Header().Set("Transfer-Encoding", "chunked")
 	w.Header().Set("Connection", "keep-alive")
-	w.Header().Set("X-Frame-Options", "SAMEORIGIN")
+	w.Header().Set("X-Frame-Options", "deny")
+	w.Header().Set("X-Content-Type-Options", "nosniff")
+	w.Header().Set("Content-Security-Policy", "default-src 'none'")
+	w.Header().Set("X-Permitted-Cross-Domain-Policies", "none")
+	w.Header().Set("Referrer-Policy", "no-referrer")
+	w.Header().Set("Clear-Site-Data", "cache,cookies,storage")
+	w.Header().Set("Cross-Origin-Embedder-Policy", "require-corp")
+	w.Header().Set("Cross-Origin-Opener-Policy", "same-origin")
+	w.Header().Set("Cross-Origin-Resource-Policy", "same-origin")
+	w.Header().Set("X-XSS-Protection", "0")
 	w.Header().Set("X-Aggregate-Auth", "1")
 	w.Header().Set("Strict-Transport-Security", "max-age=31536000; includeSubDomains")
 }
diff --git a/anylink/server/handler/link_cstp.go b/anylink/server/handler/link_cstp.go
index b51540f..97a9fb3 100644
--- a/anylink/server/handler/link_cstp.go
+++ b/anylink/server/handler/link_cstp.go
@@ -12,6 +12,7 @@ import (
 )
 
 func LinkCstp(conn net.Conn, bufRW *bufio.ReadWriter, cSess *sessdata.ConnSession) {
+	base.Debug("LinkCstp connect ip:", cSess.IpAddr, "user:", cSess.Username, "rip:", conn.RemoteAddr())
 	defer func() {
 		base.Debug("LinkCstp return", cSess.IpAddr)
 		_ = conn.Close()
@@ -67,6 +68,11 @@ func LinkCstp(conn net.Conn, bufRW *bufio.ReadWriter, cSess *sessdata.ConnSessio
 		case 0x00: // DATA
 			// 获取数据长度
 			dataLen = binary.BigEndian.Uint16(pl.Data[4:6]) // 4,5
+			// 修复 cstp 数据长度溢出报错
+			if 8+dataLen > BufferSize {
+				base.Error("recv error dataLen", dataLen)
+				continue
+			}
 			// 去除数据头
 			copy(pl.Data, pl.Data[8:8+dataLen])
 			// 更新切片长度
diff --git a/anylink/server/handler/link_dtls.go b/anylink/server/handler/link_dtls.go
index e674ff2..23c6e86 100644
--- a/anylink/server/handler/link_dtls.go
+++ b/anylink/server/handler/link_dtls.go
@@ -10,7 +10,7 @@ import (
 )
 
 func LinkDtls(conn net.Conn, cSess *sessdata.ConnSession) {
-	base.Debug("LinkDtls connect ip:", cSess.IpAddr, "udp-rip:", conn.RemoteAddr())
+	base.Debug("LinkDtls connect ip:", cSess.IpAddr, "user:", cSess.Username, "udp-rip:", conn.RemoteAddr())
 	dSess := cSess.NewDtlsConn()
 	if dSess == nil {
 		// 创建失败，直接关闭链接
diff --git a/anylink/server/handler/link_home.go b/anylink/server/handler/link_home.go
index 7be4f64..9669d26 100644
--- a/anylink/server/handler/link_home.go
+++ b/anylink/server/handler/link_home.go
@@ -6,13 +6,13 @@ import (
 	"strings"
 
 	"github.com/bjdgyc/anylink/admin"
+	"github.com/bjdgyc/anylink/dbdata"
 )
 
 func LinkHome(w http.ResponseWriter, r *http.Request) {
 	// fmt.Println(r.RemoteAddr)
 	// hu, _ := httputil.DumpRequest(r, true)
 	// fmt.Println("DumpHome: ", string(hu))
-
 	connection := strings.ToLower(r.Header.Get("Connection"))
 	userAgent := strings.ToLower(r.UserAgent())
 	if connection == "close" && (strings.Contains(userAgent, "anyconnect") || strings.Contains(userAgent, "openconnect")) {
@@ -20,9 +20,13 @@ func LinkHome(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusBadRequest)
 		return
 	}
-
+	index := &dbdata.SettingOther{}
+	dbdata.SettingGet(index)
 	w.WriteHeader(http.StatusOK)
-	fmt.Fprintln(w, "AnyLink 是一个企业级远程办公 sslvpn 的软件，可以支持多人同时在线使用。")
+	if index.Homeindex == "" {
+		index.Homeindex = "AnyLink 是一个企业级远程办公 SSL VPN 软件，可以支持多人同时在线使用。"
+	}	
+	fmt.Fprintln(w, index.Homeindex)
 }
 
 func LinkOtpQr(w http.ResponseWriter, r *http.Request) {
diff --git a/anylink/server/handler/link_tunnel.go b/anylink/server/handler/link_tunnel.go
index 42bf87f..16373b2 100644
--- a/anylink/server/handler/link_tunnel.go
+++ b/anylink/server/handler/link_tunnel.go
@@ -97,11 +97,14 @@ func LinkTunnel(w http.ResponseWriter, r *http.Request) {
 	HttpSetHeader(w, "X-CSTP-Address", cSess.IpAddr.String())             // 分配的ip地址
 	HttpSetHeader(w, "X-CSTP-Netmask", sessdata.IpPool.Ipv4Mask.String()) // 子网掩码
 	HttpSetHeader(w, "X-CSTP-Hostname", hn)                               // 机器名称
-	//HttpSetHeader(w, "X-CSTP-Default-Domain", cSess.LocalIp)
 	HttpSetHeader(w, "X-CSTP-Base-MTU", cstpBaseMtu)
+	// 要发布的默认域
+	if base.Cfg.DefaultDomain != "" {
+		HttpSetHeader(w, "X-CSTP-Default-Domain", base.Cfg.DefaultDomain)
+	}
 
 	// 设置用户策略
-	SetUserPolicy(sess.Username, cSess.Group)
+	SetUserPolicy(cSess.Username, cSess.Group)
 
 	// 允许本地LAN访问vpn网络，必须放在路由的第一个
 	if cSess.Group.AllowLan {
diff --git a/anylink/server/handler/link_vtap.go b/anylink/server/handler/link_vtap.go
index 39fd87d..399f9da 100644
--- a/anylink/server/handler/link_vtap.go
+++ b/anylink/server/handler/link_vtap.go
@@ -33,7 +33,7 @@ func checkMacvtap() {
 
 	ifName := "anylinkMacvtap"
 	// 加载 macvtap
-	cmdstr0 := fmt.Sprintf("modprobe -i macvtap")
+	cmdstr0 := fmt.Sprintln("modprobe -i macvtap")
 	// 开启主网卡混杂模式
 	cmdstr1 := fmt.Sprintf("ip link set dev %s promisc on", base.Cfg.Ipv4Master)
 	// 测试 macvtap 功能
@@ -66,9 +66,9 @@ func LinkMacvtap(cSess *sessdata.ConnSession) error {
 	return createVtap(cSess, ifName)
 }
 
-func checkIpvtap() {
+// func checkIpvtap() {
 
-}
+// }
 
 // 创建 Ipvtap 网卡
 func LinkIpvtap(cSess *sessdata.ConnSession) error {
diff --git a/anylink/server/handler/payload.go b/anylink/server/handler/payload.go
index acc27d6..626ae6e 100644
--- a/anylink/server/handler/payload.go
+++ b/anylink/server/handler/payload.go
@@ -1,11 +1,8 @@
 package handler
 
 import (
-	"encoding/binary"
-
 	"github.com/bjdgyc/anylink/base"
 	"github.com/bjdgyc/anylink/dbdata"
-	"github.com/bjdgyc/anylink/pkg/utils"
 	"github.com/bjdgyc/anylink/sessdata"
 	"github.com/songgao/water/waterutil"
 )
@@ -18,8 +15,11 @@ func payloadIn(cSess *sessdata.ConnSession, pl *sessdata.Payload) bool {
 			// 校验不通过直接丢弃
 			return false
 		}
-
-		logAudit(cSess, pl)
+		if base.Cfg.AuditInterval >= 0 {
+			cSess.IpAuditPool.JobQueue <- func() {
+				logAudit(cSess, pl)
+			}
+		}
 	}
 
 	closed := false
@@ -97,53 +97,3 @@ func checkLinkAcl(group *dbdata.Group, pl *sessdata.Payload) bool {
 
 	return false
 }
-
-// 访问日志审计
-func logAudit(cSess *sessdata.ConnSession, pl *sessdata.Payload) {
-	if base.Cfg.AuditInterval < 0 {
-		return
-	}
-
-	ipProto := waterutil.IPv4Protocol(pl.Data)
-	// 只统计 tcp和udp 的访问
-	switch ipProto {
-	case waterutil.TCP:
-	case waterutil.UDP:
-	default:
-		return
-	}
-
-	ipSrc := waterutil.IPv4Source(pl.Data)
-	ipDst := waterutil.IPv4Destination(pl.Data)
-	ipPort := waterutil.IPv4DestinationPort(pl.Data)
-
-	b := getByte34()
-	key := *b
-	copy(key[:16], ipSrc)
-	copy(key[16:32], ipDst)
-	binary.BigEndian.PutUint16(key[32:34], ipPort)
-
-	s := utils.BytesToString(key)
-	nu := utils.NowSec().Unix()
-
-	// 判断已经存在，并且没有过期
-	v, ok := cSess.IpAuditMap[s]
-	if ok && nu-v < int64(base.Cfg.AuditInterval) {
-		// 回收byte对象
-		putByte34(b)
-		return
-	}
-
-	cSess.IpAuditMap[s] = nu
-
-	audit := dbdata.AccessAudit{
-		Username:  cSess.Sess.Username,
-		Protocol:  uint8(ipProto),
-		Src:       ipSrc.String(),
-		Dst:       ipDst.String(),
-		DstPort:   ipPort,
-		CreatedAt: utils.NowSec(),
-	}
-
-	_ = dbdata.Add(audit)
-}
diff --git a/anylink/server/handler/payload_access_audit.go b/anylink/server/handler/payload_access_audit.go
new file mode 100644
index 0000000..0ad9ea4
--- /dev/null
+++ b/anylink/server/handler/payload_access_audit.go
@@ -0,0 +1,194 @@
+package handler
+
+import (
+	"crypto/md5"
+	"encoding/binary"
+	"encoding/hex"
+	"time"
+
+	"github.com/bjdgyc/anylink/base"
+	"github.com/bjdgyc/anylink/dbdata"
+	"github.com/bjdgyc/anylink/pkg/utils"
+	"github.com/bjdgyc/anylink/sessdata"
+	"github.com/songgao/water/waterutil"
+)
+
+const (
+	acc_proto_udp = iota + 1
+	acc_proto_tcp
+	acc_proto_https
+	acc_proto_http
+)
+
+// 保存批量的审计日志
+type LogBatch struct {
+	Logs []dbdata.AccessAudit
+}
+
+// 日志池
+type LogSink struct {
+	logChan        chan dbdata.AccessAudit
+	autoCommitChan chan *LogBatch // 超时通知
+}
+
+var logAuditSink *LogSink
+
+// 写入日志通道
+func logAuditWrite(aa dbdata.AccessAudit) {
+	logAuditSink.logChan <- aa
+}
+
+// 批量写入数据表
+func logAuditBatch() {
+	if base.Cfg.AuditInterval < 0 {
+		return
+	}
+	logAuditSink = &LogSink{
+		logChan:        make(chan dbdata.AccessAudit, 1000),
+		autoCommitChan: make(chan *LogBatch, 10),
+	}
+	var (
+		limit        = 100 // 超过上限批量写入数据表
+		logAudit     dbdata.AccessAudit
+		logBatch     *LogBatch
+		commitTimer  *time.Timer // 超时自动提交
+		timeOutBatch *LogBatch
+	)
+	for {
+		select {
+		case logAudit = <-logAuditSink.logChan:
+			if logBatch == nil {
+				logBatch = &LogBatch{}
+				commitTimer = time.AfterFunc(
+					1*time.Second, func(logBatch *LogBatch) func() {
+						return func() {
+							logAuditSink.autoCommitChan <- logBatch
+						}
+					}(logBatch),
+				)
+			}
+			logBatch.Logs = append(logBatch.Logs, logAudit)
+			if len(logBatch.Logs) >= limit {
+				commitTimer.Stop()
+				_ = dbdata.AddBatch(logBatch.Logs)
+				logBatch = nil
+			}
+		case timeOutBatch = <-logAuditSink.autoCommitChan:
+			if timeOutBatch != logBatch {
+				continue
+			}
+			if logBatch != nil {
+				_ = dbdata.AddBatch(logBatch.Logs)
+			}
+			logBatch = nil
+		}
+	}
+}
+
+// 解析IP包的数据
+func logAudit(cSess *sessdata.ConnSession, pl *sessdata.Payload) {
+	ipProto := waterutil.IPv4Protocol(pl.Data)
+	// 访问协议
+	var accessProto uint8
+	// 只统计 tcp和udp 的访问
+	switch ipProto {
+	case waterutil.TCP:
+		accessProto = acc_proto_tcp
+	case waterutil.UDP:
+		accessProto = acc_proto_udp
+	default:
+		return
+	}
+
+	ipSrc := waterutil.IPv4Source(pl.Data)
+	ipDst := waterutil.IPv4Destination(pl.Data)
+	ipPort := waterutil.IPv4DestinationPort(pl.Data)
+
+	b := getByte51()
+	key := *b
+	copy(key[:16], ipSrc)
+	copy(key[16:32], ipDst)
+	binary.BigEndian.PutUint16(key[32:34], ipPort)
+
+	info := ""
+	nu := utils.NowSec().Unix()
+	if ipProto == waterutil.TCP {
+		plData := waterutil.IPv4Payload(pl.Data)
+		if len(plData) < 14 {
+			return
+		}
+		flags := plData[13]
+		switch flags {
+		case flags & 0x20:
+			// URG
+			return
+		case flags & 0x14:
+			// RST ACK
+			return
+		case flags & 0x12:
+			// SYN ACK
+			return
+		case flags & 0x11:
+			// Client FIN
+			return
+		case flags & 0x10:
+			// ACK
+			return
+		case flags & 0x08:
+			// PSH
+			return
+		case flags & 0x04:
+			// RST
+			return
+		case flags & 0x02:
+			// SYN
+			return
+		case flags & 0x01:
+			// FIN
+			return
+		case flags & 0x18:
+			// PSH ACK
+			accessProto, info = onTCP(plData)
+			if info != "" {
+				// 提前存储只含ip数据的key, 避免即记录域名又记录一笔IP数据的记录
+				ipKey := make([]byte, 51)
+				copy(ipKey, key)
+				ipS := utils.BytesToString(ipKey)
+				cSess.IpAuditMap.Set(ipS, nu)
+				// 存储含域名的key
+				key[34] = byte(accessProto)
+				md5Sum := md5.Sum([]byte(info))
+				copy(key[35:51], hex.EncodeToString(md5Sum[:]))
+			}
+		case flags & 0x19:
+			// URG
+			return
+		case flags & 0xC2:
+			// SYN-ECE-CWR
+			return
+		}
+	}
+	s := utils.BytesToString(key)
+
+	// 判断已经存在，并且没有过期
+	v, ok := cSess.IpAuditMap.Get(s)
+	if ok && nu-v.(int64) < int64(base.Cfg.AuditInterval) {
+		// 回收byte对象
+		putByte51(b)
+		return
+	}
+
+	cSess.IpAuditMap.Set(s, nu)
+
+	audit := dbdata.AccessAudit{
+		Username:    cSess.Username,
+		Protocol:    uint8(ipProto),
+		Src:         ipSrc.String(),
+		Dst:         ipDst.String(),
+		DstPort:     ipPort,
+		CreatedAt:   utils.NowSec(),
+		AccessProto: accessProto,
+		Info:        info,
+	}
+	logAuditWrite(audit)
+}
diff --git a/anylink/server/handler/payload_tcp_parser.go b/anylink/server/handler/payload_tcp_parser.go
new file mode 100644
index 0000000..bece94d
--- /dev/null
+++ b/anylink/server/handler/payload_tcp_parser.go
@@ -0,0 +1,171 @@
+package handler
+
+import (
+	"bufio"
+	"bytes"
+	"net/http"
+	"regexp"
+	"strings"
+)
+
+var tcpParsers = []func([]byte) (uint8, string){
+	sniNewParser,
+	httpParser,
+}
+
+func onTCP(payload []byte) (uint8, string) {
+	size := len(payload)
+	ihl := (payload[12] & 0xf0) >> 2
+	if int(ihl) > size {
+		return acc_proto_tcp, ""
+	}
+	data := payload[ihl:]
+	for _, parser := range tcpParsers {
+		if proto, info := parser(data); info != "" {
+			return proto, info
+		}
+	}
+	return acc_proto_tcp, ""
+}
+
+func sniNewParser(b []byte) (uint8, string) {
+	dataSize := len(b)
+	if dataSize < 2 || b[0] != 0x16 || b[1] != 0x03 {
+		return acc_proto_tcp, ""
+	}
+	rest := b[5:]
+	restLen := len(rest)
+	if restLen == 0 {
+		return acc_proto_tcp, ""
+	}
+	current := 0
+	handshakeType := rest[0]
+	current += 1
+	if handshakeType != 0x1 {
+		return acc_proto_tcp, ""
+	}
+	// Skip over another length
+	current += 3
+	// Skip over protocolversion
+	current += 2
+	// Skip over random number
+	current += 4 + 28
+	if current >= restLen {
+		return acc_proto_tcp, ""
+	}
+	// Skip over session ID
+	sessionIDLength := int(rest[current])
+	current += 1
+	current += sessionIDLength
+	if current >= restLen {
+		return acc_proto_tcp, ""
+	}
+	cipherSuiteLength := (int(rest[current]) << 8) + int(rest[current+1])
+	current += 2
+	current += cipherSuiteLength
+	if current >= restLen {
+		return acc_proto_tcp, ""
+	}
+	compressionMethodLength := int(rest[current])
+	current += 1
+	current += compressionMethodLength
+
+	if current >= restLen {
+		return acc_proto_tcp, ""
+	}
+	current += 2
+	hostname := ""
+	for current+4 < restLen && hostname == "" {
+		extensionType := (int(rest[current]) << 8) + int(rest[current+1])
+		current += 2
+		extensionDataLength := (int(rest[current]) << 8) + int(rest[current+1])
+		current += 2
+		if extensionType == 0 {
+			// Skip over number of names as we're assuming there's just one
+			current += 2
+			if current >= restLen {
+				return acc_proto_tcp, ""
+			}
+			nameType := rest[current]
+			current += 1
+			if nameType != 0 {
+				return acc_proto_tcp, ""
+			}
+			if current+1 >= restLen {
+				return acc_proto_tcp, ""
+			}
+			nameLen := (int(rest[current]) << 8) + int(rest[current+1])
+			current += 2
+			if current+nameLen >= restLen {
+				return acc_proto_tcp, ""
+			}
+			hostname = string(rest[current : current+nameLen])
+		}
+		current += extensionDataLength
+	}
+	if hostname == "" {
+		return acc_proto_tcp, ""
+	}
+	return acc_proto_https, hostname
+}
+
+// Beta
+func httpNewParser(data []byte) (uint8, string) {
+	methodArr := []string{"OPTIONS", "HEAD", "GET", "POST", "PUT", "DELETE", "TRACE", "CONNECT"}
+	pos := bytes.IndexByte(data, 10)
+	if pos == -1 {
+		return acc_proto_tcp, ""
+	}
+	method, uri, _ := strings.Cut(string(data[:pos]), " ")
+	ok := false
+	for _, v := range methodArr {
+		if v == method {
+			ok = true
+		}
+	}
+	if !ok {
+		return acc_proto_tcp, ""
+	}
+	hostname := ""
+	// GET http://www.google.com/index.html HTTP/1.1
+	if len(uri) > 7 && uri[:4] == "http" {
+		uriSlice := strings.Split(uri[7:], "/")
+		hostname = uriSlice[0]
+		return acc_proto_http, hostname
+	}
+	packet := string(data)
+	hostPos := strings.Index(packet, "Host: ")
+	if hostPos == -1 {
+		hostPos = strings.Index(packet, "HOST: ")
+		if hostPos == -1 {
+			return acc_proto_tcp, ""
+		}
+	}
+	hostEndPos := strings.Index(packet[hostPos:], "\n")
+	if hostEndPos == -1 {
+		return acc_proto_tcp, ""
+	}
+	hostname = packet[hostPos+6 : hostPos+hostEndPos-1]
+	return acc_proto_http, hostname
+}
+
+func sniParser(data []byte) (uint8, string) {
+	dataSize := len(data)
+	if dataSize < 2 || data[0] != 0x16 || data[1] != 0x03 {
+		return acc_proto_tcp, ""
+	}
+	sniRe := regexp.MustCompile("\x00\x00.{4}\x00.{2}([a-z0-9]+([\\-\\.]{1}[a-z0-9]+)*\\.[a-z]{2,6})\x00")
+	m := sniRe.FindSubmatch(data)
+	if len(m) < 2 {
+		return acc_proto_tcp, ""
+	}
+	host := string(m[1])
+	return acc_proto_https, host
+}
+
+func httpParser(data []byte) (uint8, string) {
+	if req, err := http.ReadRequest(bufio.NewReader(bytes.NewReader(data))); err == nil {
+		return acc_proto_http, req.Host
+	}
+	return acc_proto_tcp, ""
+}
diff --git a/anylink/server/handler/payload_test.go b/anylink/server/handler/payload_test.go
new file mode 100644
index 0000000..f36a08c
--- /dev/null
+++ b/anylink/server/handler/payload_test.go
@@ -0,0 +1,72 @@
+package handler
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+var (
+	httpsPacket = []byte{148, 152, 1, 187, 110, 58, 1, 82, 45, 244, 84, 34, 80, 24, 1, 54, 130, 216, 0, 0, 22, 3, 1, 2, 0, 1, 0, 1, 252, 3, 3, 110, 25, 141, 34, 174, 156, 58, 62, 6, 81, 231, 155, 116, 22, 30, 12, 195, 250, 214, 125, 161, 255, 107, 203, 106, 173, 167, 25, 6, 78, 13, 5, 32, 228, 144, 162, 34, 197, 103, 28, 86, 28, 66, 156, 108, 36, 31, 171, 238, 245, 133, 82, 184, 67, 0, 89, 194, 8, 172, 219, 83, 62, 90, 133, 223, 0, 14, 19, 1, 19, 2, 19, 3, 192, 43, 192, 44, 192, 47, 192, 48, 1, 0, 1, 165, 0, 0, 0, 31, 0, 29, 0, 0, 26, 106, 103, 119, 45, 100, 114, 99, 110, 46, 106, 111, 115, 46, 100, 98, 97, 110, 107, 99, 108, 111, 117, 100, 46, 99, 110, 0, 23, 0, 0, 255, 1, 0, 1, 0, 0, 10, 0, 8, 0, 6, 0, 29, 0, 23, 0, 24, 0, 11, 0, 2, 1, 0, 0, 35, 0, 208, 204, 119, 182, 195, 85, 35, 227, 85, 38, 141, 121, 60, 221, 102, 189, 82, 161, 136, 147, 248, 243, 32, 17, 28, 191, 115, 109, 63, 239, 38, 44, 22, 180, 30, 142, 213, 136, 229, 115, 24, 99, 225, 150, 231, 152, 12, 7, 210, 230, 134, 189, 83, 193, 253, 130, 123, 242, 15, 60, 122, 146, 187, 107, 173, 113, 167, 28, 65, 242, 221, 224, 20, 130, 12, 35, 247, 29, 123, 145, 18, 171, 197, 193, 0, 152, 32, 129, 227, 54, 124, 94, 154, 65, 99, 5, 90, 141, 113, 224, 189, 232, 169, 33, 159, 66, 230, 39, 1, 206, 193, 213, 154, 217, 18, 8, 205, 168, 140, 25, 229, 82, 56, 14, 134, 209, 113, 209, 28, 205, 71, 143, 44, 89, 69, 58, 236, 211, 80, 41, 136, 44, 23, 87, 16, 81, 133, 54, 61, 19, 97, 133, 69, 182, 98, 201, 210, 139, 195, 0, 108, 215, 79, 194, 7, 56, 126, 203, 43, 229, 224, 138, 41, 55, 41, 207, 74, 67, 5, 26, 19, 156, 130, 218, 27, 223, 79, 204, 82, 209, 61, 239, 44, 247, 214, 175, 1, 192, 192, 192, 11, 247, 243, 48, 29, 77, 90, 100, 93, 0, 16, 0, 14, 0, 12, 2, 104, 50, 8, 104, 116, 116, 112, 47, 49, 46, 49, 0, 5, 0, 5, 1, 0, 0, 0, 0, 0, 13, 0, 20, 0, 18, 4, 3, 8, 4, 4, 1, 5, 3, 8, 5, 5, 1, 8, 6, 6, 1, 2, 1, 0, 51, 0, 38, 0, 36, 0, 29, 0, 32, 38, 165, 55, 231, 178, 23, 75, 55, 19, 164, 173, 248, 204, 115, 141, 138, 78, 66, 254, 21, 79, 109, 43, 124, 242, 80, 10, 185, 127, 92, 125, 36, 0, 45, 0, 2, 1, 1, 0, 43, 0, 5, 4, 3, 4, 3, 3, 0, 21, 0, 35, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+	httpPacket  = []byte{200, 102, 0, 80, 135, 147, 39, 86, 46, 120, 134, 242, 80, 24, 255, 255, 244, 240, 0, 0, 71, 69, 84, 32, 47, 32, 72, 84, 84, 80, 47, 49, 46, 49, 13, 10, 85, 115, 101, 114, 45, 65, 103, 101, 110, 116, 58, 32, 68, 97, 108, 118, 105, 107, 47, 50, 46, 49, 46, 48, 32, 40, 76, 105, 110, 117, 120, 59, 32, 85, 59, 32, 65, 110, 100, 114, 111, 105, 100, 32, 49, 48, 59, 32, 69, 76, 83, 45, 65, 78, 48, 48, 32, 66, 117, 105, 108, 100, 47, 72, 85, 65, 87, 69, 73, 69, 76, 83, 45, 65, 78, 48, 48, 41, 13, 10, 72, 111, 115, 116, 58, 32, 119, 119, 119, 46, 103, 111, 111, 103, 108, 101, 46, 99, 111, 109, 13, 10, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 58, 32, 75, 101, 101, 112, 45, 65, 108, 105, 118, 101, 13, 10, 65, 99, 99, 101, 112, 116, 45, 69, 110, 99, 111, 100, 105, 110, 103, 58, 32, 103, 122, 105, 112, 13, 10, 13, 10}
+	httpPacket2 = []byte{200, 102, 0, 80, 135, 147, 39, 86, 46, 120, 134, 242, 80, 24, 255, 255, 244, 240, 0, 0, 71, 69, 84, 32, 47, 32, 72, 84, 84, 80, 47, 49, 46, 49, 13, 10, 85, 115, 101, 114, 45, 65, 103, 101, 110, 116, 58, 32, 68, 97, 108, 118, 105, 107, 47, 50, 46, 49, 46, 48, 32, 40, 76, 105, 110, 117, 120, 59, 32, 85, 59, 32, 65, 110, 100, 114, 111, 105, 100, 32, 49, 48, 59, 32, 69, 76, 83, 45, 65, 78, 48, 48, 32, 66, 117, 105, 108, 100, 47, 72, 85, 65, 87, 69, 73, 69, 76, 83, 45, 65, 78, 48, 48, 41, 13, 10, 72, 79, 83, 84, 58, 32, 119, 119, 119, 46, 103, 111, 111, 103, 108, 101, 46, 99, 111, 109, 13, 10, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 58, 32, 75, 101, 101, 112, 45, 65, 108, 105, 118, 101, 13, 10, 65, 99, 99, 101, 112, 116, 45, 69, 110, 99, 111, 100, 105, 110, 103, 58, 32, 103, 122, 105, 112, 13, 10, 13, 10}
+	httpPacket3 = []byte{200, 102, 0, 80, 135, 147, 39, 86, 46, 120, 134, 242, 80, 24, 255, 255, 244, 240, 0, 0, 71, 69, 84, 32, 104, 116, 116, 112, 58, 47, 47, 119, 119, 119, 46, 103, 111, 111, 103, 108, 101, 46, 99, 111, 109, 47, 105, 110, 100, 101, 120, 46, 104, 116, 109, 108, 32, 72, 84, 84, 80, 47, 49, 46, 49, 13, 10, 85, 115, 101, 114, 45, 65, 103, 101, 110, 116, 58, 32, 68, 97, 108, 118, 105, 107, 47, 50, 46, 49, 46, 48, 32, 40, 76, 105, 110, 117, 120, 59, 32, 85, 59, 32, 65, 110, 100, 114, 111, 105, 100, 32, 49, 48, 59, 32, 69, 76, 83, 45, 65, 78, 48, 48, 32, 66, 117, 105, 108, 100, 47, 72, 85, 65, 87, 69, 73, 69, 76, 83, 45, 65, 78, 48, 48, 41, 13, 10, 72, 79, 83, 84, 58, 32, 119, 119, 119, 46, 103, 111, 111, 103, 108, 101, 46, 99, 111, 109, 13, 10, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 58, 32, 75, 101, 101, 112, 45, 65, 108, 105, 118, 101, 13, 10, 65, 99, 99, 101, 112, 116, 45, 69, 110, 99, 111, 100, 105, 110, 103, 58, 32, 103, 122, 105, 112, 13, 10, 13, 10}
+	httpsSni    = "jgw-drcn.jos.dbankcloud.cn"
+	httpHost    = "www.google.com"
+)
+
+func handlerTcpPayload(packet []byte) []byte {
+	ihl := (packet[12] & 0xf0) >> 2
+	data := packet[ihl:]
+	return data
+}
+func BenchmarkSniParser(b *testing.B) {
+	data := handlerTcpPayload(httpsPacket)
+	for n := 0; n < b.N; n++ {
+		sniParser(data)
+	}
+}
+
+func BenchmarkNewSniParser(b *testing.B) {
+	data := handlerTcpPayload(httpsPacket)
+	for n := 0; n < b.N; n++ {
+		sniNewParser(data)
+	}
+}
+
+func BenchmarkHttpParser(b *testing.B) {
+	data := handlerTcpPayload(httpPacket)
+	for n := 0; n < b.N; n++ {
+		httpParser(data)
+	}
+}
+
+func BenchmarkNewHttpParser(b *testing.B) {
+	data := handlerTcpPayload(httpPacket)
+	for n := 0; n < b.N; n++ {
+		httpNewParser(data)
+	}
+}
+
+func TestNewSniParser(t *testing.T) {
+	ast := assert.New(t)
+	data := handlerTcpPayload(httpsPacket)
+	_, sni := sniNewParser(data)
+	ast.Equal(sni, httpsSni)
+}
+
+func TestNewHttpParser(t *testing.T) {
+	ast := assert.New(t)
+	// Host
+	data := handlerTcpPayload(httpPacket)
+	_, hostname := httpNewParser(data)
+	ast.Equal(hostname, httpHost)
+	// HOST
+	data = handlerTcpPayload(httpPacket2)
+	_, hostname = httpNewParser(data)
+	ast.Equal(hostname, httpHost)
+	// GET http://www.google.com/index.html HTTP/1.1
+	data = handlerTcpPayload(httpPacket3)
+	_, hostname = httpNewParser(data)
+	ast.Equal(hostname, httpHost)
+}
diff --git a/anylink/server/handler/pool.go b/anylink/server/handler/pool.go
index a9e04c5..bf9b1c7 100644
--- a/anylink/server/handler/pool.go
+++ b/anylink/server/handler/pool.go
@@ -87,3 +87,25 @@ func putByte34(b *[]byte) {
 	*b = (*b)[:34]
 	byte34Pool.Put(b)
 }
+
+type BufferPool struct {
+	sync.Pool
+}
+
+// 长度 51 小对象
+var byte51Pool = sync.Pool{
+	New: func() interface{} {
+		b := make([]byte, 51)
+		return &b
+	},
+}
+
+func getByte51() *[]byte {
+	b := byte51Pool.Get().(*[]byte)
+	return b
+}
+
+func putByte51(b *[]byte) {
+	*b = (*b)[:51]
+	byte51Pool.Put(b)
+}
diff --git a/anylink/server/handler/start.go b/anylink/server/handler/start.go
index 30ef2a0..4eeba14 100644
--- a/anylink/server/handler/start.go
+++ b/anylink/server/handler/start.go
@@ -7,6 +7,7 @@ import (
 
 	"github.com/bjdgyc/anylink/admin"
 	"github.com/bjdgyc/anylink/base"
+	"github.com/bjdgyc/anylink/cron"
 	"github.com/bjdgyc/anylink/dbdata"
 	"github.com/bjdgyc/anylink/sessdata"
 )
@@ -14,6 +15,7 @@ import (
 func Start() {
 	dbdata.Start()
 	sessdata.Start()
+	cron.Start()
 
 	switch base.Cfg.LinkMode {
 	case base.LinkModeTUN:
@@ -37,6 +39,8 @@ func Start() {
 	go admin.StartAdmin()
 	go startTls()
 	go startDtls()
+
+	go logAuditBatch()
 }
 
 func Stop() {
diff --git a/anylink/server/pkg/utils/maps.go b/anylink/server/pkg/utils/maps.go
new file mode 100644
index 0000000..df2a3c0
--- /dev/null
+++ b/anylink/server/pkg/utils/maps.go
@@ -0,0 +1,115 @@
+package utils
+
+import (
+	"sync"
+
+	cmap "github.com/orcaman/concurrent-map"
+)
+
+type IMaps interface {
+	Set(key string, val interface{})
+	Get(key string) (interface{}, bool)
+	Del(key string)
+}
+
+/**
+ * 基础的Map结构
+ *
+ */
+type BaseMap struct {
+	m map[string]interface{}
+}
+
+func (m *BaseMap) Set(key string, value interface{}) {
+	m.m[key] = value
+}
+func (m *BaseMap) Get(key string) (interface{}, bool) {
+	v, ok := m.m[key]
+	return v, ok
+}
+func (m *BaseMap) Del(key string) {
+	delete(m.m, key)
+}
+
+/**
+ * CMap 并发结构
+ *
+ */
+type ConcurrentMap struct {
+	m cmap.ConcurrentMap
+}
+
+func (m *ConcurrentMap) Set(key string, value interface{}) {
+	m.m.Set(key, value)
+}
+
+func (m *ConcurrentMap) Get(key string) (interface{}, bool) {
+	return m.m.Get(key)
+}
+
+func (m *ConcurrentMap) Del(key string) {
+	m.m.Remove(key)
+}
+
+/**
+ * Map 读写结构
+ *
+ */
+type RWLockMap struct {
+	m    map[string]interface{}
+	lock sync.RWMutex
+}
+
+func (m *RWLockMap) Set(key string, value interface{}) {
+	m.lock.Lock()
+	defer m.lock.Unlock()
+	m.m[key] = value
+}
+
+func (m *RWLockMap) Get(key string) (interface{}, bool) {
+	m.lock.RLock()
+	defer m.lock.RUnlock()
+	v, ok := m.m[key]
+	return v, ok
+}
+
+func (m *RWLockMap) Del(key string) {
+	m.lock.Lock()
+	defer m.lock.Unlock()
+	delete(m.m, key)
+}
+
+/**
+ * sync.Map 结构
+ *
+ */
+type SyncMap struct {
+	m sync.Map
+}
+
+func (m *SyncMap) Set(key string, val interface{}) {
+	m.m.Store(key, val)
+}
+
+func (m *SyncMap) Get(key string) (interface{}, bool) {
+	return m.m.Load(key)
+}
+
+func (m *SyncMap) Del(key string) {
+	m.m.Delete(key)
+}
+
+func NewMap(name string, len int) IMaps {
+	switch name {
+	case "cmap":
+		return &ConcurrentMap{m: cmap.New()}
+	case "rwmap":
+		m := make(map[string]interface{}, len)
+		return &RWLockMap{m: m}
+	case "syncmap":
+		return &SyncMap{}
+	default:
+		m := make(map[string]interface{}, len)
+		return &BaseMap{m: m}
+	}
+}
diff --git a/anylink/server/pkg/utils/maps_test.go b/anylink/server/pkg/utils/maps_test.go
new file mode 100644
index 0000000..0646c5d
--- /dev/null
+++ b/anylink/server/pkg/utils/maps_test.go
@@ -0,0 +1,76 @@
+package utils
+
+import (
+	"strconv"
+	"sync"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+const (
+	NumOfReader = 200
+	NumOfWriter = 100
+)
+
+func TestMaps(t *testing.T) {
+	assert := assert.New(t)
+	var ipAuditMap IMaps
+	key := "one"
+	value := 100
+
+	testMapData := map[string]int{"basemap": 512, "cmap": 0, "rwmap": 512, "syncmap": 0}
+	for name, len := range testMapData {
+		ipAuditMap = NewMap(name, len)
+		ipAuditMap.Set(key, value)
+		v, ok := ipAuditMap.Get(key)
+		assert.Equal(v.(int), value)
+		assert.True(ok)
+		ipAuditMap.Del(key)
+		v, ok = ipAuditMap.Get(key)
+		assert.Nil(v)
+		assert.False(ok)
+	}
+}
+
+func benchmarkMap(b *testing.B, hm IMaps) {
+	for i := 0; i < b.N; i++ {
+		var wg sync.WaitGroup
+		for i := 0; i < NumOfWriter; i++ {
+			wg.Add(1)
+			go func() {
+				for i := 0; i < 100; i++ {
+					hm.Set(strconv.Itoa(i), i*i)
+					hm.Set(strconv.Itoa(i), i*i)
+					hm.Del(strconv.Itoa(i))
+				}
+				wg.Done()
+			}()
+		}
+		for i := 0; i < NumOfReader; i++ {
+			wg.Add(1)
+			go func() {
+				for i := 0; i < 100; i++ {
+					hm.Get(strconv.Itoa(i))
+				}
+				wg.Done()
+			}()
+		}
+		wg.Wait()
+	}
+}
+
+func BenchmarkMaps(b *testing.B) {
+	b.Run("RW map", func(b *testing.B) {
+		myMap := NewMap("rwmap", 512)
+		benchmarkMap(b, myMap)
+	})
+	b.Run("Concurrent map", func(b *testing.B) {
+		myMap := NewMap("cmap", 0)
+		benchmarkMap(b, myMap)
+	})
+	b.Run("Sync map", func(b *testing.B) {
+		myMap := NewMap("syncmap", 0)
+		benchmarkMap(b, myMap)
+	})
+}
diff --git a/anylink/server/sessdata/ip_pool.go b/anylink/server/sessdata/ip_pool.go
index 7fdf207..1ab5ae2 100644
--- a/anylink/server/sessdata/ip_pool.go
+++ b/anylink/server/sessdata/ip_pool.go
@@ -13,10 +13,12 @@ import (
 var (
 	IpPool   = &ipPoolConfig{}
 	ipActive = map[string]bool{}
+	// ipKeep and ipLease  ipAddr => type
+	ipLease   = map[string]bool{}
+	ipPoolMux sync.Mutex
 )
 
 type ipPoolConfig struct {
-	mux sync.Mutex
 	// 计算动态ip
 	Ipv4Gateway net.IP
 	Ipv4Mask    net.IP
@@ -45,39 +47,67 @@ func initIpPool() {
 	// ip地址池
 	IpPool.IpLongMin = utils.Ip2long(net.ParseIP(base.Cfg.Ipv4Start))
 	IpPool.IpLongMax = utils.Ip2long(net.ParseIP(base.Cfg.Ipv4End))
+
+	// 获取IpLease数据
+	go cronIpLease()
+}
+
+func cronIpLease() {
+	getIpLease()
+	tick := time.NewTicker(time.Minute * 30)
+	for range tick.C {
+		getIpLease()
+	}
+}
+
+func getIpLease() {
+	xdb := dbdata.GetXdb()
+	keepIpMaps := []dbdata.IpMap{}
+	sNow := time.Now().Add(-1 * time.Duration(base.Cfg.IpLease) * time.Second)
+	err := xdb.Cols("ip_addr").Where("keep=?", true).Or("last_login>?", sNow).Find(&keepIpMaps)
+	if err != nil {
+		base.Error(err)
+	}
+	// fmt.Println(keepIpMaps)
+	ipPoolMux.Lock()
+	ipLease = map[string]bool{}
+	for _, v := range keepIpMaps {
+		ipLease[v.IpAddr] = true
+	}
+	ipPoolMux.Unlock()
 }
 
 // AcquireIp 获取动态ip
 func AcquireIp(username, macAddr string) net.IP {
-	IpPool.mux.Lock()
-	defer IpPool.mux.Unlock()
+	ipPoolMux.Lock()
+	defer ipPoolMux.Unlock()
 
 	tNow := time.Now()
 
-	// 判断已经分配过
+	// 判断是否已经分配过
 	mi := &dbdata.IpMap{}
 	err := dbdata.One("mac_addr", macAddr, mi)
+	// 存在ip记录
 	if err == nil {
 		ipStr := mi.IpAddr
 		ip := net.ParseIP(ipStr)
 		// 跳过活跃连接
 		_, ok := ipActive[ipStr]
 		// 检测原有ip是否在新的ip池内
-		if IpPool.Ipv4IPNet.Contains(ip) && !ok {
+		if IpPool.Ipv4IPNet.Contains(ip) && !ok &&
+			utils.Ip2long(ip) >= IpPool.IpLongMin &&
+			utils.Ip2long(ip) <= IpPool.IpLongMax {
 			mi.Username = username
 			mi.LastLogin = tNow
 			// 回写db数据
-			_ = dbdata.Add(mi)
+			_ = dbdata.Set(mi)
 			ipActive[ipStr] = true
 			return ip
 		}
-
 		_ = dbdata.Del(mi)
-
 	}
 
-	farIp := &dbdata.IpMap{LastLogin: tNow}
-	// 全局遍历超过租期ip
+	// 全局遍历超过租期和未保留的ip
 	for i := IpPool.IpLongMin; i <= IpPool.IpLongMax; i++ {
 		ip := utils.Long2ip(i)
 		ipStr := ip.String()
@@ -86,67 +116,45 @@ func AcquireIp(username, macAddr string) net.IP {
 		if _, ok := ipActive[ipStr]; ok {
 			continue
 		}
-
-		v := &dbdata.IpMap{}
-		err = dbdata.One("ip_addr", ipStr, v)
-		if err != nil {
-			if dbdata.CheckErrNotFound(err) {
-				// 该ip没有被使用
-				mi = &dbdata.IpMap{IpAddr: ipStr, MacAddr: macAddr, Username: username, LastLogin: tNow}
-				_ = dbdata.Add(mi)
-				ipActive[ipStr] = true
-				return ip
-			}
-			base.Error(err)
-			return nil
-		}
-
-		// 跳过ip保留
-		if v.Keep {
+		// 跳过ip租期内数据
+		if _, ok := ipLease[ipStr]; ok {
 			continue
 		}
 
-		// 已经超过租期
-		if tNow.Sub(v.LastLogin) > time.Duration(base.Cfg.IpLease)*time.Second {
-			_ = dbdata.Del(v)
+		v := &dbdata.IpMap{}
+		err = dbdata.One("ip_addr", ipStr, v)
+		if err == nil {
+			// 存在记录直接跳过
+			continue
+		}
+
+		if dbdata.CheckErrNotFound(err) {
+			// 该ip没有被使用
 			mi = &dbdata.IpMap{IpAddr: ipStr, MacAddr: macAddr, Username: username, LastLogin: tNow}
-			// 重写db数据
 			_ = dbdata.Add(mi)
 			ipActive[ipStr] = true
 			return ip
 		}
-
-		// 其他情况判断最早登陆
-		if v.LastLogin.Before(farIp.LastLogin) {
-			farIp = v
-		}
-	}
-
-	// 全都在线，没有数据可用
-	if farIp.Id == 0 {
+		// 查询报错
+		base.Error(err)
 		return nil
 	}
 
-	// 使用最早登陆的mac ip
-	ipStr := farIp.IpAddr
-	ip := net.ParseIP(ipStr)
-	mi = &dbdata.IpMap{IpAddr: ipStr, MacAddr: macAddr, Username: username, LastLogin: tNow}
-	// 回写db数据
-	_ = dbdata.Add(mi)
-	ipActive[ipStr] = true
-	return ip
+	base.Warn("no ip available, please see ip_map table row")
+	return nil
 }
 
 // 回收ip
 func ReleaseIp(ip net.IP, macAddr string) {
-	IpPool.mux.Lock()
-	defer IpPool.mux.Unlock()
+	ipPoolMux.Lock()
+	defer ipPoolMux.Unlock()
 
 	delete(ipActive, ip.String())
+
 	mi := &dbdata.IpMap{}
 	err := dbdata.One("ip_addr", ip.String(), mi)
 	if err == nil {
 		mi.LastLogin = time.Now()
-		_ = dbdata.Add(mi)
+		_ = dbdata.Set(mi)
 	}
 }
diff --git a/anylink/server/sessdata/ip_pool_test.go b/anylink/server/sessdata/ip_pool_test.go
index c0e702c..5db01cd 100644
--- a/anylink/server/sessdata/ip_pool_test.go
+++ b/anylink/server/sessdata/ip_pool_test.go
@@ -59,8 +59,9 @@ func TestIpPool(t *testing.T) {
 	assert.Nil(ip)
 
 	ReleaseIp(net.IPv4(192, 168, 3, 88), "mac-88")
-	ReleaseIp(net.IPv4(192, 168, 3, 77), "mac-77")
+	ReleaseIp(net.IPv4(192, 168, 3, 188), "mac-188")
 	// 从头循环获取可用ip
-	ip = AcquireIp("user", "mac-release-new")
-	assert.True(net.IPv4(192, 168, 3, 77).Equal(ip))
+	ip = AcquireIp("user", "mac-188")
+	t.Log("mac-188", ip)
+	assert.True(net.IPv4(192, 168, 3, 188).Equal(ip))
 }
diff --git a/anylink/server/sessdata/online.go b/anylink/server/sessdata/online.go
index ca97aa7..e8dff7a 100644
--- a/anylink/server/sessdata/online.go
+++ b/anylink/server/sessdata/online.go
@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"net"
 	"sort"
-	"sync/atomic"
 	"time"
 
 	"github.com/bjdgyc/anylink/pkg/utils"
@@ -57,10 +56,10 @@ func OnlineSess() []Online {
 				TunName:          v.CSess.IfName,
 				Mtu:              v.CSess.Mtu,
 				Client:           v.CSess.Client,
-				BandwidthUp:      utils.HumanByte(atomic.LoadUint32(&v.CSess.BandwidthUpPeriod)) + "/s",
-				BandwidthDown:    utils.HumanByte(atomic.LoadUint32(&v.CSess.BandwidthDownPeriod)) + "/s",
-				BandwidthUpAll:   utils.HumanByte(atomic.LoadUint64(&v.CSess.BandwidthUpAll)),
-				BandwidthDownAll: utils.HumanByte(atomic.LoadUint64(&v.CSess.BandwidthDownAll)),
+				BandwidthUp:      utils.HumanByte(v.CSess.BandwidthUpPeriod.Load()) + "/s",
+				BandwidthDown:    utils.HumanByte(v.CSess.BandwidthDownPeriod.Load()) + "/s",
+				BandwidthUpAll:   utils.HumanByte(v.CSess.BandwidthUpAll.Load()),
+				BandwidthDownAll: utils.HumanByte(v.CSess.BandwidthDownAll.Load()),
 				LastLogin:        v.LastLogin,
 			}
 			datas = append(datas, val)
diff --git a/anylink/server/sessdata/session.go b/anylink/server/sessdata/session.go
index f165247..70f3e7e 100644
--- a/anylink/server/sessdata/session.go
+++ b/anylink/server/sessdata/session.go
@@ -1,7 +1,6 @@
 package sessdata
 
 import (
-	"crypto/md5"
 	"fmt"
 	"math/rand"
 	"net"
@@ -13,6 +12,9 @@ import (
 
 	"github.com/bjdgyc/anylink/base"
 	"github.com/bjdgyc/anylink/dbdata"
+	"github.com/bjdgyc/anylink/pkg/utils"
+	"github.com/ivpusic/grpool"
+	atomic2 "go.uber.org/atomic"
 )
 
 var (
@@ -30,6 +32,7 @@ type ConnSession struct {
 	IpAddr              net.IP // 分配的ip地址
 	LocalIp             net.IP
 	MacHw               net.HardwareAddr // 客户端mac地址,从Session取出
+	Username            string
 	RemoteAddr          string
 	Mtu                 int
 	IfName              string
@@ -37,19 +40,19 @@ type ConnSession struct {
 	CstpDpd             int
 	Group               *dbdata.Group
 	Limit               *LimitRater
-	BandwidthUp         uint32 // 使用上行带宽 Byte
-	BandwidthDown       uint32 // 使用下行带宽 Byte
-	BandwidthUpPeriod   uint32 // 前一周期的总量
-	BandwidthDownPeriod uint32
-	BandwidthUpAll      uint64 // 使用上行带宽总量
-	BandwidthDownAll    uint64 // 使用下行带宽总量
+	BandwidthUp         atomic2.Uint32 // 使用上行带宽 Byte
+	BandwidthDown       atomic2.Uint32 // 使用下行带宽 Byte
+	BandwidthUpPeriod   atomic2.Uint32 // 前一周期的总量
+	BandwidthDownPeriod atomic2.Uint32
+	BandwidthUpAll      atomic2.Uint64 // 使用上行带宽总量
+	BandwidthDownAll    atomic2.Uint64 // 使用下行带宽总量
 	closeOnce           sync.Once
 	CloseChan           chan struct{}
 	PayloadIn           chan *Payload
-	PayloadOutCstp      chan *Payload    // Cstp的数据
-	PayloadOutDtls      chan *Payload    // Dtls的数据
-	IpAuditMap          map[string]int64 // 审计的ip数据
-
+	PayloadOutCstp      chan *Payload // Cstp的数据
+	PayloadOutDtls      chan *Payload // Dtls的数据
+	IpAuditMap          utils.IMaps   // 审计的ip数据
+	IpAuditPool         *grpool.Pool  // 审计的IP包解析池
 	// dSess *DtlsSession
 	dSess *atomic.Value
 }
@@ -68,6 +71,7 @@ type Session struct {
 	DtlsSid        string // dtls协议的 session_id
 	MacAddr        string // 客户端mac地址
 	UniqueIdGlobal string // 客户端唯一标示
+	MacHw          net.HardwareAddr
 	Username       string // 用户名
 	Group          string
 	AuthStep       string
@@ -145,6 +149,7 @@ func (s *Session) NewConn() *ConnSession {
 	s.mux.RLock()
 	active := s.IsActive
 	macAddr := s.MacAddr
+	macHw := s.MacHw
 	username := s.Username
 	s.mux.RUnlock()
 	if active {
@@ -155,14 +160,6 @@ func (s *Session) NewConn() *ConnSession {
 	if !limit {
 		return nil
 	}
-	// 获取客户端mac地址
-	macHw, err := net.ParseMAC(macAddr)
-	if err != nil {
-		sum := md5.Sum([]byte(s.UniqueIdGlobal))
-		macHw = sum[0:5] // 5个byte
-		macHw = append([]byte{0x02}, macHw...)
-		macAddr = macHw.String()
-	}
 	ip := AcquireIp(username, macAddr)
 	if ip == nil {
 		LimitClient(username, true)
@@ -171,7 +168,7 @@ func (s *Session) NewConn() *ConnSession {
 
 	// 查询group信息
 	group := &dbdata.Group{}
-	err = dbdata.One("Name", s.Group, group)
+	err := dbdata.One("Name", s.Group, group)
 	if err != nil {
 		base.Error(err)
 		return nil
@@ -180,6 +177,7 @@ func (s *Session) NewConn() *ConnSession {
 	cSess := &ConnSession{
 		Sess:           s,
 		MacHw:          macHw,
+		Username:       username,
 		IpAddr:         ip,
 		closeOnce:      sync.Once{},
 		CloseChan:      make(chan struct{}),
@@ -191,7 +189,8 @@ func (s *Session) NewConn() *ConnSession {
 
 	// ip 审计
 	if base.Cfg.AuditInterval >= 0 {
-		cSess.IpAuditMap = make(map[string]int64, 512)
+		cSess.IpAuditMap = utils.NewMap("cmap", 0)
+		cSess.IpAuditPool = grpool.NewPool(1, 600)
 	}
 
 	dSess := &DtlsSession{
@@ -226,8 +225,13 @@ func (cs *ConnSession) Close() {
 		cs.Sess.LastLogin = time.Now()
 		cs.Sess.CSess = nil
 
+		dSess := cs.GetDtlsSession()
+		if dSess != nil {
+			dSess.Close()
+		}
+
 		ReleaseIp(cs.IpAddr, cs.Sess.MacAddr)
-		LimitClient(cs.Sess.Username, true)
+		LimitClient(cs.Username, true)
 	})
 }
 
@@ -269,7 +273,7 @@ func (cs *ConnSession) GetDtlsSession() *DtlsSession {
 	return nil
 }
 
-const BandwidthPeriodSec = 2 // 流量速率统计周期(秒)
+const BandwidthPeriodSec = 10 // 流量速率统计周期(秒)
 
 func (cs *ConnSession) ratePeriod() {
 	tick := time.NewTicker(time.Second * BandwidthPeriodSec)
@@ -283,14 +287,14 @@ func (cs *ConnSession) ratePeriod() {
 		}
 
 		// 实时流量清零
-		rtUp := atomic.SwapUint32(&cs.BandwidthUp, 0)
-		rtDown := atomic.SwapUint32(&cs.BandwidthDown, 0)
+		rtUp := cs.BandwidthUp.Swap(0)
+		rtDown := cs.BandwidthDown.Swap(0)
 		// 设置上一周期每秒的流量
-		atomic.SwapUint32(&cs.BandwidthUpPeriod, rtUp/BandwidthPeriodSec)
-		atomic.SwapUint32(&cs.BandwidthDownPeriod, rtDown/BandwidthPeriodSec)
+		cs.BandwidthUpPeriod.Swap(rtUp / BandwidthPeriodSec)
+		cs.BandwidthDownPeriod.Swap(rtDown / BandwidthPeriodSec)
 		// 累加所有流量
-		atomic.AddUint64(&cs.BandwidthUpAll, uint64(rtUp))
-		atomic.AddUint64(&cs.BandwidthDownAll, uint64(rtDown))
+		cs.BandwidthUpAll.Add(uint64(rtUp))
+		cs.BandwidthDownAll.Add(uint64(rtDown))
 	}
 }
 
@@ -320,11 +324,11 @@ func (cs *ConnSession) SetIfName(name string) {
 
 func (cs *ConnSession) RateLimit(byt int, isUp bool) error {
 	if isUp {
-		atomic.AddUint32(&cs.BandwidthUp, uint32(byt))
+		cs.BandwidthUp.Add(uint32(byt))
 		return nil
 	}
 	// 只对下行速率限制
-	atomic.AddUint32(&cs.BandwidthDown, uint32(byt))
+	cs.BandwidthDown.Add(uint32(byt))
 	if cs.Limit == nil {
 		return nil
 	}
diff --git a/anylink/server/sessdata/session_test.go b/anylink/server/sessdata/session_test.go
index 26b7f3e..c9219b2 100644
--- a/anylink/server/sessdata/session_test.go
+++ b/anylink/server/sessdata/session_test.go
@@ -30,9 +30,9 @@ func TestConnSession(t *testing.T) {
 
 	err := cSess.RateLimit(100, true)
 	ast.Nil(err)
-	ast.Equal(cSess.BandwidthUp, uint32(100))
+	ast.Equal(cSess.BandwidthUp.Load(), uint32(100))
 	err = cSess.RateLimit(200, false)
 	ast.Nil(err)
-	ast.Equal(cSess.BandwidthDown, uint32(200))
+	ast.Equal(cSess.BandwidthDown.Load(), uint32(200))
 	cSess.Close()
 }
diff --git a/anylink/server/sessdata/start.go b/anylink/server/sessdata/start.go
index 73773ce..1d4243c 100644
--- a/anylink/server/sessdata/start.go
+++ b/anylink/server/sessdata/start.go
@@ -3,4 +3,5 @@ package sessdata
 func Start() {
 	initIpPool()
 	checkSession()
+	saveStatsInfo()
 }
diff --git a/anylink/server/sessdata/statsinfo.go b/anylink/server/sessdata/statsinfo.go
new file mode 100644
index 0000000..79c3b9f
--- /dev/null
+++ b/anylink/server/sessdata/statsinfo.go
@@ -0,0 +1,105 @@
+package sessdata
+
+import (
+	"encoding/json"
+	"time"
+
+	"github.com/bjdgyc/anylink/dbdata"
+	"github.com/shirou/gopsutil/cpu"
+	"github.com/shirou/gopsutil/mem"
+)
+
+const (
+	StatsCycleSec = 10 // 统计周期（秒）
+	AddCycleSec   = 60 // 记录到数据表周期（秒）
+)
+
+func saveStatsInfo() {
+	go func() {
+		tick := time.NewTicker(time.Second * StatsCycleSec)
+		count := 0
+		for range tick.C {
+			up := uint32(0)
+			down := uint32(0)
+			upGroups := make(map[int]uint32)
+			downGroups := make(map[int]uint32)
+			numGroups := make(map[int]int)
+			onlineNum := 0
+			sessMux.Lock()
+			for _, v := range sessions {
+				v.mux.Lock()
+				if v.IsActive {
+					// 在线人数
+					onlineNum += 1
+					numGroups[v.CSess.Group.Id] += 1
+					// 网络吞吐
+					userUp := v.CSess.BandwidthUpPeriod.Load()
+					userDown := v.CSess.BandwidthDownPeriod.Load()
+					if userUp > 0 {
+						upGroups[v.CSess.Group.Id] += userUp
+					}
+					if userDown > 0 {
+						downGroups[v.CSess.Group.Id] += userDown
+					}
+					up += userUp
+					down += userDown
+				}
+				v.mux.Unlock()
+			}
+			sessMux.Unlock()
+
+			tNow := time.Now()
+			// online
+			numData, _ := json.Marshal(numGroups)
+			so := dbdata.StatsOnline{Num: onlineNum, NumGroups: string(numData), CreatedAt: tNow}
+			// network
+			upData, _ := json.Marshal(upGroups)
+			downData, _ := json.Marshal(downGroups)
+			sn := dbdata.StatsNetwork{Up: up, Down: down, UpGroups: string(upData), DownGroups: string(downData), CreatedAt: tNow}
+			// cpu
+			sc := dbdata.StatsCpu{Percent: getCpuPercent(), CreatedAt: tNow}
+			// mem
+			sm := dbdata.StatsMem{Percent: getMemPercent(), CreatedAt: tNow}
+			count++
+			// 是否保存至数据库
+			save := count*StatsCycleSec >= AddCycleSec
+			// 历史数据
+			if save {
+				count = 0
+			}
+			// 设置统计数据
+			setStatsData(save, so, sn, sc, sm)
+		}
+	}()
+}
+
+func setStatsData(save bool, so dbdata.StatsOnline, sn dbdata.StatsNetwork, sc dbdata.StatsCpu, sm dbdata.StatsMem) {
+	// 实时数据
+	dbdata.StatsInfoIns.SetRealTime("online", so)
+	dbdata.StatsInfoIns.SetRealTime("network", sn)
+	dbdata.StatsInfoIns.SetRealTime("cpu", sc)
+	dbdata.StatsInfoIns.SetRealTime("mem", sm)
+	if !save {
+		return
+	}
+	dbdata.StatsInfoIns.SaveStatsInfo(so, sn, sc, sm)
+}
+
+func getCpuPercent() float64 {
+	cpuUsedPercent, _ := cpu.Percent(0, false)
+	percent := cpuUsedPercent[0]
+	if percent == 0 {
+		percent = 1
+	}
+	return decimal(percent)
+}
+
+func getMemPercent() float64 {
+	m, _ := mem.VirtualMemory()
+	return decimal(m.UsedPercent)
+}
+
+func decimal(f float64) float64 {
+	i := int(f * 100)
+	return float64(i) / 100
+}
diff --git a/anylink/web/src/components/LineChart.vue b/anylink/web/src/components/LineChart.vue
index 09cd46a..8cd95d9 100644
--- a/anylink/web/src/components/LineChart.vue
+++ b/anylink/web/src/components/LineChart.vue
@@ -1,5 +1,5 @@
 <template>
-  <div id="line-chart" :style="{height:height,width:width}"/>
+  <div class="line-chart" :style="{height:height,width:width}" />
 </template>
 
 <script>
@@ -14,7 +14,7 @@
       },
       height: {
         type: String,
-        default: '350px'
+        default: '240px'
       },
       // title,xAxis,series
       chartData: {
@@ -23,29 +23,48 @@
       }
     },
     data() {
-      return {}
+      return {
+        chart:null
+      }
     },
     mounted() {
       this.initChart()
+      window.addEventListener('resize', this.listenerResize)
     },
     beforeDestroy() {
+      window.removeEventListener('resize', this.listenerResize)
+    },
+    watch: {
+        chartData:{
+            handler(){
+                this.initChart()
+            },
+            deep:true
+        }
     },
     methods: {
+      listenerResize() {
+        this.chart.resize()
+      },
       initChart() {
-        let chart = echarts.init(this.$el)
+        this.chart = echarts.init(this.$el)
 
-        const option = {
+        let option = {
+          color: ['#2D5CF6','#50B142'],
           title: {
-            text: this.chartData.title || '折线图'
+            text: this.chartData.title || '折线图',
+            textStyle:{fontWeight:'normal',fontSize:16, color:'#8C8C8C'}
           },
           tooltip: {
             trigger: 'axis'
           },
-          legend: {},
+          legend: {
+            bottom: 0,
+          },
           grid: {
             left: '3%',
             right: '4%',
-            bottom: '3%',
+            bottom: '10%',
             containLabel: true
           },
           // toolbox: {
@@ -56,27 +75,47 @@
           xAxis: {
             type: 'category',
             boundaryGap: false,
-            data: this.chartData.xname
+            data: this.chartData.xname, 
+            splitLine: {
+                show: false
+            }                                                     
           },
           yAxis: {
-            type: 'value'
+            type: 'value',
+            minInterval: undefined,
+            name: this.chartData.yname,
+            splitLine: {
+                lineStyle: {
+                    color: "#F0F0F0",
+                },
+            },            
+            axisLabel: {
+                // formatter: (value) => {
+                //     value = value + " MB"
+                //     return value
+                // }
+            }            
           },
           series: [],
         };
-
+        if (this.chartData.yminInterval != undefined) {
+            option.yAxis.minInterval = this.chartData.yminInterval
+        }
         let xdata = this.chartData.xdata
         for (let key in xdata) {
           // window.console.log(key);
           let a = {
             name: key,
             type: 'line',
+            showSymbol: false,
             data: xdata[key]
           };
           option.series.push(a)
         }
 
-        chart.setOption(option)
+
+        this.chart.setOption(option)
       },
-    }
-  }
+    }    
+  } 
 </script>
diff --git a/anylink/web/src/layout/LayoutAside.vue b/anylink/web/src/layout/LayoutAside.vue
index fbb82dd..332190a 100644
--- a/anylink/web/src/layout/LayoutAside.vue
+++ b/anylink/web/src/layout/LayoutAside.vue
@@ -56,6 +56,20 @@
       <el-menu-item index="/admin/group/list">用户组列表</el-menu-item>
     </el-submenu>
 
+    <el-submenu index="3">
+      <template slot="title">
+        <i class="el-icon-s-order"></i>
+        <span slot="title">调试信息</span>
+      </template>
+
+      <el-menu-item>
+        <a href="/debug/pprof/" target="_blank">pprof</a>
+      </el-menu-item>
+      <el-menu-item>
+        <a href="/debug/statsviz/" target="_blank">statsviz</a>
+      </el-menu-item>
+
+    </el-submenu>
 
   </el-menu>
 
diff --git a/anylink/web/src/pages/Home.vue b/anylink/web/src/pages/Home.vue
index c37006c..9c071fe 100644
--- a/anylink/web/src/pages/Home.vue
+++ b/anylink/web/src/pages/Home.vue
@@ -2,7 +2,7 @@
   <div class="home">
     <el-row :gutter="40" class="panel-group">
       <el-col :span="6" class="card-panel-col">
-        <div class="card-panel">
+        <div class="card-panel" v-on:click="jump('/admin/user/online')">
           <i class="el-icon-user-solid" style="font-size:50px;color: #f4516c;"></i>
           <div class="card-panel-description">
             <div class="card-panel-text">在线数</div>
@@ -12,7 +12,7 @@
       </el-col>
 
       <el-col :span="6" class="card-panel-col">
-        <div class="card-panel">
+        <div class="card-panel" v-on:click="jump('/admin/user/list')">
           <i class="el-icon-user-solid" style="font-size:50px;color: #36a3f7"></i>
           <div class="card-panel-description">
             <div class="card-panel-text">用户数</div>
@@ -22,7 +22,7 @@
       </el-col>
 
       <el-col :span="6" class="card-panel-col">
-        <div class="card-panel">
+        <div class="card-panel" v-on:click="jump('/admin/group/list')">
           <i class="el-icon-wallet" style="font-size:50px;color:#34bfa3"></i>
           <div class="card-panel-description">
             <div class="card-panel-text">用户组数</div>
@@ -32,25 +32,82 @@
       </el-col>
 
       <el-col :span="6" class="card-panel-col">
-        <div class="card-panel">
+        <div class="card-panel" v-on:click="jump('/admin/user/ip_map')">
           <i class="el-icon-s-order" style="font-size:50px;color:#40c9c6"></i>
           <div class="card-panel-description">
             <div class="card-panel-text">IP映射数</div>
             <countTo :startVal='0' :endVal='counts.ip_map' :duration='2000' class="panel-num"></countTo>
           </div>
         </div>
-      </el-col>
+      </el-col>    
 
     </el-row>
 
-    <el-row class="line-chart">
-      <LineChart :chart-data="lineChartUser"/>
-    </el-row>
-
-    <el-row class="line-chart">
-      <LineChart :chart-data="lineChartOrder"/>
+    <el-row class="line-chart-box" gutter="20">
+        <el-col :span="12" class="line-chart-col">            
+            <LineChart :chart-data="lineChart.online"/>
+            <div class="chart-group-name">
+                <el-select size="mini" v-model="lineChartGroup.online" @change="lineChartGroupChange('online')">
+                    <el-option v-for="(item,index) in groupNames" :key="index" :label="item.text" :value="item.value">
+                    </el-option>
+                </el-select> 
+            </div>           
+            <div class="time-range">
+                <el-radio-group v-model="lineChartScope.online" size="mini" @change="((label)=>{lineChartScopeChange('online', label)})">
+                    <el-radio-button label="rt" >实时</el-radio-button>
+                    <el-radio-button label="1h">1小时</el-radio-button>
+                    <el-radio-button label="24h">24小时</el-radio-button>
+                    <el-radio-button label="7d">7天</el-radio-button>
+                    <el-radio-button label="30d">30天</el-radio-button>
+                </el-radio-group>
+            </div>
+        </el-col>
+        <el-col :span="12" class="line-chart-col">
+            <LineChart :chart-data="lineChart.network"/>
+            <div class="chart-group-name">
+                <el-select size="mini" v-model="lineChartGroup.network" @change="lineChartGroupChange('network')">
+                    <el-option v-for="(item,index) in groupNames" :key="index" :label="item.text" :value="item.value">
+                    </el-option>
+                </el-select> 
+            </div>            
+            <div class="time-range">
+                <el-radio-group v-model="lineChartScope.network" size="mini" @change="((label)=>{lineChartScopeChange('network', label)})">
+                    <el-radio-button label="rt" >实时</el-radio-button>
+                    <el-radio-button label="1h">1小时</el-radio-button>
+                    <el-radio-button label="24h">24小时</el-radio-button>
+                    <el-radio-button label="7d">7天</el-radio-button>
+                    <el-radio-button label="30d">30天</el-radio-button>
+                </el-radio-group>
+            </div>            
+        </el-col>
     </el-row>
 
+    <el-row class="line-chart-box" gutter="20">
+        <el-col :span="12" class="line-chart-col">            
+            <LineChart :chart-data="lineChart.cpu"/>
+            <div class="time-range">
+                <el-radio-group v-model="lineChartScope.cpu" size="mini" @change="((label)=>{lineChartScopeChange('cpu', label)})">
+                    <el-radio-button label="rt" >实时</el-radio-button>
+                    <el-radio-button label="1h">1小时</el-radio-button>
+                    <el-radio-button label="24h">24小时</el-radio-button>
+                    <el-radio-button label="7d">7天</el-radio-button>
+                    <el-radio-button label="30d">30天</el-radio-button>
+                </el-radio-group>
+            </div>
+        </el-col>
+        <el-col :span="12" class="line-chart-col">
+            <LineChart :chart-data="lineChart.mem"/>
+            <div class="time-range">
+                <el-radio-group v-model="lineChartScope.mem" size="mini" @change="((label)=>{lineChartScopeChange('mem', label)})">
+                    <el-radio-button label="rt" >实时</el-radio-button>
+                    <el-radio-button label="1h">1小时</el-radio-button>
+                    <el-radio-button label="24h">24小时</el-radio-button>
+                    <el-radio-button label="7d">7天</el-radio-button>
+                    <el-radio-button label="30d">30天</el-radio-button>
+                </el-radio-group>
+            </div>            
+        </el-col>
+    </el-row>    
   </div>
 </template>
 
@@ -60,24 +117,6 @@ import countTo from 'vue-count-to';
 import LineChart from "@/components/LineChart";
 import axios from "axios";
 
-const lineChartUser = {
-  title: '每日在线统计',
-  xname: ['2019-12-13', '2019-12-14', '2019-12-15', '2019-12-16', '2019-12-17', '2019-12-18', '2019-12-19'],
-  xdata: {
-    'test1': [10, 120, 11, 134, 105, 10, 15],
-    'test2': [10, 82, 91, 14, 162, 10, 15]
-  }
-}
-
-const lineChartOrder = {
-  title: '每日流量统计',
-  xname: ['2019-12-13', '2019-12-14', '2019-12-15', '2019-12-16', '2019-12-17', '2019-12-18', '2019-12-19'],
-  xdata: {
-    'test1': [100, 120, 161, 134, 105, 160, 165],
-    'test2': [120, 82, 91, 154, 162, 140, 145]
-  }
-}
-
 export default {
   name: "Home",
   components: {
@@ -92,8 +131,53 @@ export default {
         group: 0,
         ip_map: 0,
       },
-      lineChartUser: lineChartUser,
-      lineChartOrder: lineChartOrder,
+      groupNames:[],
+      lineChart: {
+        online: {
+            title: '用户在线数',
+            xname: [],
+            xdata: {
+                '在线人数': [],
+            },
+            yminInterval: 1,
+            yname:"人数"
+        },
+        network: {
+            title: '网络吞吐量',
+            xname: [],
+            xdata: {
+                '下行流量': [],
+                '上行流量': [],                
+            },
+            yname:"Mbps"
+        },
+        cpu: {
+            title: 'CPU占用比例',
+            xname: [],
+            xdata: {
+                'CPU': [],
+            },
+            yname:"%"
+        },
+        mem: {
+                title: '内存占用比例',
+                xname: [],
+                xdata: {
+                    '内存': [],
+                },
+                yname:"%"
+        }
+      },
+      lineChartScope : { 
+            online: "rt",
+            network : "rt",
+            cpu : "rt",
+            mem : "rt"  
+      }, 
+      lineChartGroup : {
+            online: "",
+            network: "",
+      }  
     }
   },
   created() {
@@ -102,6 +186,14 @@ export default {
   },
   mounted() {
     this.getData()
+    this.getGroups()
+    this.getAllStats() 
+    const chartsTimer = setInterval(() => {
+        this.getAllStats()                                      
+    }, 10000);
+    this.$once('hook:beforeDestroy', () => {
+      clearInterval(chartsTimer);
+    })    
   },
   methods: {
     getData() {
@@ -114,16 +206,172 @@ export default {
         console.log(error);
       });
     },
+    getAllStats() {
+        for (var action in this.lineChartScope){
+           if (this.lineChartScope[action] == "rt") {
+               this.getStatsData(action);
+           }
+        }   
+    },
+    getStatsData(action, scope) {
+        if (!scope) {
+            scope = "rt"
+        }
+        let getData = {params:{"action": action, "scope": scope}}
+        axios.get('/statsinfo/list', getData).then(resp => {
+            var data = resp.data.data
+            if (! data.datas) return ;
+            data.action = action
+            data.scope = scope
+            switch(action) {
+                case "online": this.formatOnline(data); break;
+                case "network": this.formatNetwork(data); break;
+                case "cpu": this.formatCpu(data); break;
+                case "mem": this.formatMem(data); break;
+            }
+        }).catch(error => {
+            this.$message.error('哦，请求出错');
+            console.log(error);
+        });
+    },
+    formatOnline(data) {
+        let timeFormat = this.getTimeFormat(data.scope)
+        let chartData = this.lineChart[data.action]
+        let chooseGroup = this.lineChartGroup[data.action]
+        let datas = data.datas
+        let xnum = 0     
+        chartData.xname = []
+        chartData.xdata["在线人数"] = []
+        for(var i=0; i<datas.length;i++){
+            chartData.xname[i] = this.dateFormat(datas[i].created_at, timeFormat)  
+            xnum = datas[i].num
+            if (chooseGroup != "" && xnum > 0) {
+                let num_groups = JSON.parse(datas[i].num_groups)
+                xnum = ! num_groups[chooseGroup] ? 0 : num_groups[chooseGroup]
+            }
+            chartData.xdata["在线人数"][i] = xnum
+        }
+        // 实时更新在线数
+        if (data.scope == "rt" && chooseGroup == "") {
+            this.counts.online = datas[datas.length - 1].num
+        }
+        this.lineChart[data.action] = chartData
+    },    
+    formatNetwork(data) {
+        let timeFormat = this.getTimeFormat(data.scope)
+        let chartData = this.lineChart[data.action]
+        let chooseGroup = this.lineChartGroup[data.action]
+        let datas = data.datas
+        let xnumUp = 0, xnumDown = 0
+        chartData.xname = []
+        chartData.xdata["上行流量"] = []
+        chartData.xdata["下行流量"] = []
+        for(var i=0; i<datas.length;i++){
+            chartData.xname[i] = this.dateFormat(datas[i].created_at, timeFormat)
+            xnumUp = datas[i].up
+            xnumDown = datas[i].down             
+            if (chooseGroup != "") {
+                if (xnumUp > 0) {
+                    let upGroups = JSON.parse(datas[i].up_groups)
+                    xnumUp = ! upGroups[chooseGroup] ? 0 : upGroups[chooseGroup]
+                }
+                if (xnumDown > 0) {
+                    let downGroups = JSON.parse(datas[i].down_groups)
+                    xnumDown = ! downGroups[chooseGroup] ? 0 : downGroups[chooseGroup]
+                }
+            }
+            chartData.xdata["上行流量"][i] = this.toMbps(xnumUp)
+            chartData.xdata["下行流量"][i] = this.toMbps(xnumDown)
+        }
+        this.lineChart[data.action] = chartData
+    },
+    formatCpu(data) {
+        let timeFormat = this.getTimeFormat(data.scope)
+        let chartData = this.lineChart[data.action]
+        let datas = data.datas        
+        chartData.xname = []
+        chartData.xdata["CPU"] = []        
+        for(var i=0; i<datas.length;i++){
+            chartData.xname[i] = this.dateFormat(datas[i].created_at, timeFormat)
+            chartData.xdata["CPU"][i] = this.toDecimal(datas[i].percent)
+        }
+        this.lineChart[data.action] = chartData
+    }, 
+    formatMem(data) {
+        let timeFormat = this.getTimeFormat(data.scope)
+        let chartData = this.lineChart[data.action]
+        let datas = data.datas        
+        chartData.xname = []
+        chartData.xdata["内存"] = []        
+        for(var i=0; i<datas.length;i++){
+            chartData.xname[i] = this.dateFormat(datas[i].created_at, timeFormat)
+            chartData.xdata["内存"][i] = this.toDecimal(datas[i].percent)
+        }
+        this.lineChart[data.action] = chartData
+    },  
+    getTimeFormat(scope) {
+        return (scope == "rt" || scope == "1h" || scope == "24h") ? "h:i:s" : "m/d h:i:s"
+    },   
+    toMbps(bytes) {
+        if (bytes == 0) return 0
+        return (bytes / Math.pow(1024, 2) * 8).toFixed(2) * 1
+    },
+    toDecimal(f) {
+        return Math.floor(f * 100) / 100
+    },
+    lineChartScopeChange(action, label) {
+        this.lineChartScope[action] = label;
+        this.getStatsData(action, label);  
+    },     
+    dateFormat(p, format) {
+        var da = new Date(p);
+        var year = da.getFullYear();
+        var month = da.getMonth() + 1;
+        var dt = da.getDate();
+        var h = ('0'+da.getHours()).slice(-2);
+        var m = ('0'+da.getMinutes()).slice(-2)
+        var s = ('0'+da.getSeconds()).slice(-2);
+        switch (format) {
+            case "h:i:s":  return h + ':' + m + ':' + s;
+            case "m/d h:i:s":  return month + '/' + dt + ' ' + h + ':' + m + ':' + s;
+        }
+        return year + '-' + month + '-' + dt + ' ' + h + ':' + m + ':' + s;
+    },    
+    jump(path) {
+        this.$router.push(path);
+    },
+    getGroups() {
+      axios.get('/group/names_ids', {}).then(resp => {
+        var data = resp.data.data
+        var groupNames = []
+        groupNames[0] = {text:"全部", value:""}
+        for(var i=0; i<data.datas.length;i++){
+            groupNames[i+1] = {text:data.datas[i].name, value:data.datas[i].id}
+        }
+        this.groupNames = groupNames
+      }).catch(error => {
+        this.$message.error('哦，请求出错');
+        console.log(error);
+      });
+    }, 
+    lineChartGroupChange(action) {
+        this.getStatsData(action, this.lineChartScope[action]);
+    }
   },
 }
 </script>
 
 <style scoped>
+.panel-group {
+    margin-bottom: 20px;
+}
+
 .card-panel {
   display: flex;
+  border-radius: 12px;
   justify-content: space-around;
   border: 1px solid red;
-  padding: 30px 0;
+  padding: 20px 0;
 
   color: #666;
   background: #fff;
@@ -132,6 +380,11 @@ export default {
   border-color: rgba(0, 0, 0, .05);
 }
 
+.card-panel:hover {
+    box-shadow: 0 3px 5px 2px rgba(0, 0, 0, .12), 0 0 5px 0 rgba(0, 0, 0, .04);
+    cursor:pointer;
+}
+
 .card-panel-description {
   display: flex;
   flex-direction: column;
@@ -150,11 +403,39 @@ export default {
   font-weight: 700;
 }
 
+.line-chart-box {
+  padding: 0px 0px;
+  margin-top: 10px; 
+}
+
+.line-chart-col {
+    position: relative;
+}
+
 .line-chart {
+  border-radius: 12px;
   background: #fff;
-  padding: 0 16px;
-  margin-top: 40px;
   box-shadow: 0 1px 3px 0 rgba(0, 0, 0, .12), 0 0 3px 0 rgba(0, 0, 0, .04);
   border-color: rgba(0, 0, 0, .05);
+  padding:5px 5px;
+}
+
+.time-range {
+    position: absolute;
+    right: 5px;
+    top: 5px;
+}
+
+.chart-group-name {
+    position: absolute;
+    left: 110px;
+    top: 5px;
+    width: 130px;
+    font-size: 10px;
+}
+
+/deep/ .el-radio-button--mini .el-radio-button__inner {
+    padding: 7px 8px;    
+    font-size: 10px;
 }
 </style>
diff --git a/anylink/web/src/pages/group/List.vue b/anylink/web/src/pages/group/List.vue
index 7a1b08b..72ab1b9 100644
--- a/anylink/web/src/pages/group/List.vue
+++ b/anylink/web/src/pages/group/List.vue
@@ -168,10 +168,11 @@
         title="用户组"
         :visible.sync="user_edit_dialog"
         width="750px"
+        @close='closeDialog'
         center>
 
       <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="ruleForm">
-        <el-tabs v-model="activeTab">
+        <el-tabs v-model="activeTab" :before-leave="beforeTabLeave">
            <el-tab-pane label="通用" name="general">      
                 <el-form-item label="用户组ID" prop="id">
                 <el-input v-model="ruleForm.id" disabled></el-input>
@@ -228,22 +229,45 @@
 
             <el-tab-pane label="认证方式" name="authtype">
                 <el-form-item label="认证" prop="authtype">
-                    <el-radio-group v-model="ruleForm.auth.type">
+                    <el-radio-group v-model="ruleForm.auth.type" @change="authTypeChange">
                         <el-radio label="local" border>本地</el-radio>
                         <el-radio label="radius" border>Radius</el-radio>
+                        <el-radio label="ldap" border>LDAP</el-radio>
                     </el-radio-group>
-                </el-form-item>               
-                <el-form-item label="Radius密钥" v-if="ruleForm.auth.type == 'radius'">
-                    <el-col :span="10">
-                        <el-input v-model="ruleForm.auth.radius.secret"></el-input>
-                    </el-col>
-                </el-form-item>               
-                <el-form-item label="Radius服务器" v-if="ruleForm.auth.type == 'radius'">
-                    <el-col :span="10">
-                        <el-input v-model="ruleForm.auth.radius.addr" placeholder="输入IP和端口 192.168.2.1:1812"></el-input>
-                    </el-col>
-                </el-form-item>                
-            </el-tab-pane>            
+                </el-form-item>   
+                <templete v-if="ruleForm.auth.type == 'radius'">
+                  <el-form-item label="服务器地址" prop="auth.radius.addr" :rules="this.ruleForm.auth.type== 'radius' ? this.rules['auth.radius.addr'] : [{ required: false }]">
+                      <el-input v-model="ruleForm.auth.radius.addr" placeholder="例如 ip:1812"></el-input>
+                  </el-form-item>                
+                  <el-form-item label="密钥" prop="auth.radius.secret" :rules="this.ruleForm.auth.type== 'radius' ? this.rules['auth.radius.secret'] : [{ required: false }]">
+                      <el-input v-model="ruleForm.auth.radius.secret" placeholder=""></el-input>
+                  </el-form-item>               
+                </templete>
+
+                <templete v-if="ruleForm.auth.type == 'ldap'">
+                  <el-form-item label="服务器地址" prop="auth.ldap.addr" :rules="this.ruleForm.auth.type== 'ldap' ? this.rules['auth.ldap.addr'] : [{ required: false }]">
+                      <el-input v-model="ruleForm.auth.ldap.addr" placeholder="例如 ip:389 / 域名:389"></el-input>    
+                  </el-form-item> 
+                  <el-form-item label="开启TLS" prop="auth.ldap.tls">
+                    <el-switch v-model="ruleForm.auth.ldap.tls"></el-switch>                      
+                  </el-form-item>
+                  <el-form-item label="管理员账号" prop="auth.ldap.bind_name" :rules="this.ruleForm.auth.type== 'ldap' ? this.rules['auth.ldap.bind_name'] : [{ required: false }]">
+                    <el-input v-model="ruleForm.auth.ldap.bind_name" placeholder="例如 CN=bindadmin,DC=abc,DC=COM"></el-input>
+                  </el-form-item>
+                  <el-form-item label="管理员密码" prop="auth.ldap.bind_pwd" :rules="this.ruleForm.auth.type== 'ldap' ? this.rules['auth.ldap.bind_pwd'] : [{ required: false }]">
+                    <el-input type="password" v-model="ruleForm.auth.ldap.bind_pwd" placeholder=""></el-input>
+                  </el-form-item>                                                
+                  <el-form-item label="Base DN" prop="auth.ldap.base_dn" :rules="this.ruleForm.auth.type== 'ldap' ? this.rules['auth.ldap.base_dn'] : [{ required: false }]">
+                    <el-input v-model="ruleForm.auth.ldap.base_dn" placeholder="例如 DC=abc,DC=com"></el-input>
+                  </el-form-item>  
+                  <el-form-item label="用户唯一ID" prop="auth.ldap.search_attr" :rules="this.ruleForm.auth.type== 'ldap' ? this.rules['auth.ldap.search_attr'] : [{ required: false }]">
+                    <el-input v-model="ruleForm.auth.ldap.search_attr" placeholder="例如 sAMAccountName 或 uid"></el-input>
+                  </el-form-item>    
+                  <el-form-item label="受限用户组" prop="auth.ldap.member_of">
+                    <el-input v-model="ruleForm.auth.ldap.member_of" placeholder="选填, 只允许指定组登入, 例如 CN=HomeWork,DC=abc,DC=com"></el-input>
+                  </el-form-item>                                                                      
+                </templete>                 
+            </el-tab-pane>  
 
             <el-tab-pane label="路由设置" name="route">
                 <el-form-item label="包含路由" prop="route_include">
@@ -336,7 +360,7 @@
             </el-tab-pane>
             <el-form-item>
             <el-button type="primary" @click="submitForm('ruleForm')">保存</el-button>
-            <el-button @click="disVisible">取消</el-button>
+            <el-button @click="closeDialog">取消</el-button>
             </el-form-item>
           </el-tabs>
         </el-form> 
@@ -368,6 +392,19 @@ export default {
       activeTab : "general",
       readMore: {},
       readMinRows : 5,
+      defAuth : {
+                type:'local', 
+                radius:{addr:"", secret:""},
+                ldap:{
+                      addr:"", 
+                      tls:false,
+                      base_dn:"",
+                      search_attr:"sAMAccountName",
+                      member_of:"",
+                      bind_name:"",
+                      bind_pwd:"",
+                      },
+      },          
       ruleForm: {
         bandwidth: 0,
         status: 1,
@@ -376,7 +413,7 @@ export default {
         route_include: [{val: 'all', note: '默认全局代理'}],
         route_exclude: [],
         link_acl: [],
-        auth : {"type":'local'}
+        auth : {},
       },
       rules: {
         name: [
@@ -390,17 +427,37 @@ export default {
         status: [
           {required: true}
         ],
+        "auth.radius.addr": [
+          {required: true, message: '请输入Radius服务器', trigger: 'blur'}
+        ],
+        "auth.radius.secret": [
+          {required: true, message: '请输入Radius密钥', trigger: 'blur'}
+        ],        
+        "auth.ldap.addr": [
+          {required: true, message: '请输入服务器地址(含端口)', trigger: 'blur'}
+        ],  
+        "auth.ldap.bind_name": [
+          {required: true, message: '请输入管理员账号', trigger: 'blur'}
+        ],
+        "auth.ldap.bind_pwd": [
+          {required: true, message: '请输入管理员密码', trigger: 'blur'}
+        ],         
+        "auth.ldap.base_dn": [
+          {required: true, message: '请输入Base DN值', trigger: 'blur'}
+        ],
+        "auth.ldap.search_attr": [
+          {required: true, message: '请输入用户唯一ID', trigger: 'blur'}
+        ],                                       
       },
     }
   },
   methods: {
     setAuthData(row) {
-        var defAuthData = {"type":'local', 
-                           "radius":{"addr":"", "secret":""},
-                          }
-        if (this.ruleForm.auth.type == "local" || !row) {
-            this.ruleForm.auth = defAuthData;
-        }
+      if (! row) {
+        this.ruleForm.auth = JSON.parse(JSON.stringify(this.defAuth));
+        return ;
+      }
+      this.ruleForm.auth = Object.assign(JSON.parse(JSON.stringify(this.defAuth)), row.auth);
     },
     handleDel(row) {
       axios.post('/group/del?id=' + row.id).then(resp => {
@@ -417,10 +474,9 @@ export default {
         console.log(error);
       });
     },
-    handleEdit(row) {
+    handleEdit(row) {      
       !this.$refs['ruleForm'] || this.$refs['ruleForm'].resetFields();
-      console.log(row)
-      this.activeTab = "general"
+      console.log(row)      
       this.user_edit_dialog = true
       if (!row) {
         this.setAuthData(row)
@@ -503,6 +559,27 @@ export default {
         this.$set(this.readMore, id, true);
       }
     },
+    authTypeChange() {
+      this.$refs['ruleForm'].clearValidate();
+    },
+    beforeTabLeave() {
+      var isSwitch = true
+      if (! this.user_edit_dialog) {
+        return isSwitch;
+      }      
+      this.$refs['ruleForm'].validate((valid) => {
+        if (!valid) {
+          this.$message.error("错误：您有必填项没有填写。")
+          isSwitch = false;
+          return false;
+        }
+      });      
+      return isSwitch;
+    },
+    closeDialog() {
+      this.user_edit_dialog = false;
+      this.activeTab = "general";
+    }
   },
 }
 </script>
diff --git a/anylink/web/src/pages/set/Audit.vue b/anylink/web/src/pages/set/Audit.vue
index 6c4e436..4e3a19e 100644
--- a/anylink/web/src/pages/set/Audit.vue
+++ b/anylink/web/src/pages/set/Audit.vue
@@ -1,68 +1,118 @@
 <template>
   <div>
     <el-card>
+      <el-form :model="searchForm" :rules="rules" ref="searchForm" :inline="true" class="form-inner-error">
+        <el-form-item label="用户名:" prop="username">
+          <el-input size="small" v-model="searchForm.username" style="width: 130px" @keydown.enter.native="searchEnterFun"></el-input>
+        </el-form-item>
+        <el-form-item label="源IP地址:" prop="src">
+          <el-input size="small" v-model="searchForm.src" style="width: 130px" @keydown.enter.native="searchEnterFun"></el-input>
+        </el-form-item>    
+        <el-form-item label="目的IP地址:" prop="dst">
+          <el-input size="small" v-model="searchForm.dst" style="width: 130px" @keydown.enter.native="searchEnterFun"></el-input>
+        </el-form-item> 
+        <el-form-item label="目的端口:" prop="dst_port">
+          <el-input size="small" v-model="searchForm.dst_port" style="width: 80px" @keydown.enter.native="searchEnterFun"></el-input>
+        </el-form-item> 
+        <el-form-item label="访问协议：">
+            <el-select size="small" v-model="searchForm.access_proto" style="width: 100px">
+                    <el-option v-for="(item,index) in access_proto" :key="index" :label="item.text" :value="item.value">
+                    </el-option>
+            </el-select>           
+        </el-form-item>  
+        <div>
+        <el-form-item label="日期范围：">
+            <el-date-picker
+                v-model="searchForm.date"
+                type="datetimerange"
+                size="small"
+                value-format="yyyy-MM-dd HH:mm:ss"
+                range-separator="～"
+                start-placeholder="开始日期"
+                end-placeholder="结束日期">
+            >
+            </el-date-picker>
+        </el-form-item>
+        <el-form-item label="详情:">
+          <el-input size="small" v-model="searchForm.info" placeholder="请输入关键字" style="width: 200px" @keydown.enter.native="searchEnterFun"></el-input>
+        </el-form-item>         
+        <el-form-item>
+          <el-button
+              size="small"
+              type="primary"
+              icon="el-icon-search"
+              @click="handleSearch">搜索
+          </el-button>
+          <el-button
+              size="small"
+              icon="el-icon-refresh"
+              @click="rest">重置搜索
+          </el-button>
+          <el-button
+              size="small"
+              icon="el-icon-download"
+              @click="handleExport">导出
+          </el-button>          
+        </el-form-item>
+        </div>
+      </el-form>
 
       <el-table
           ref="multipleTable"
           :data="tableData"
+          v-loading="loading"
+          element-loading-text="玩命加载中"
+          element-loading-spinner="el-icon-loading"
           border>
 
         <el-table-column
-            sortable="true"
             prop="id"
             label="ID"
-            width="60">
+            width="100">
         </el-table-column>
 
         <el-table-column
             prop="username"
-            label="用户名">
-        </el-table-column>
-
-
-        <el-table-column
-            prop="protocol"
-            label="协议">
+            label="用户名"
+            width="140">
         </el-table-column>
 
         <el-table-column
             prop="src"
-            label="源IP地址">
+            label="源IP地址"
+            width="140">
         </el-table-column>
 
         <el-table-column
             prop="dst"
-            label="目的IP地址">
+            label="目的IP地址"
+            width="140">
         </el-table-column>
 
         <el-table-column
             prop="dst_port"
-            label="目的端口">
+            label="目的端口"
+            width="85">
         </el-table-column>
 
+        <el-table-column
+            prop="access_proto"
+            label="访问协议"
+            width="80"
+            :formatter="protoFormat">
+        </el-table-column>
+
+        <el-table-column
+            prop="info"
+            label="详情">
+        </el-table-column>        
+
         <el-table-column
             prop="created_at"
             label="创建时间"
+            width="150"
             :formatter="tableDateFormat">
         </el-table-column>
-
-        <el-table-column
-            label="操作"
-            width="150">
-          <template slot-scope="scope">
-            <el-popconfirm
-                class="m-left-10"
-                @confirm="handleDel(scope.row)"
-                title="确定要删除审计日志吗？">
-              <el-button
-                  slot="reference"
-                  size="mini"
-                  type="danger">删除
-              </el-button>
-            </el-popconfirm>
-
-          </template>
-        </el-table-column>
       </el-table>
 
       <div class="sh-20"></div>
@@ -89,29 +139,77 @@ export default {
   mixins: [],
   created() {
     this.$emit('update:route_path', this.$route.path)
-    this.$emit('update:route_name', ['基础信息', 'IP审计'])
+    this.$emit('update:route_name', ['基础信息', '审计日志'])
   },
-  mounted() {
+  mounted() {    
     this.getData(1)
+    this.setSearchData()
   },
   data() {
     return {
       tableData: [],
       count: 10,
       nowIndex: 0,
+      accessProtoArr:["", "UDP", "TCP", "HTTPS", "HTTP"], 
+      defSearchForm: {username:'', src:'', dst:'', dst_port:'', access_proto:'', info:'', date:["",""]},
+      searchForm: {},
+      access_proto: [
+            { text: '请选择', value: '' },
+            { text: 'UDP', value: '1' },
+            { text: 'TCP', value: '2' },
+            { text: 'HTTPS', value: '3' },
+            { text: 'HTTP', value: '4' },
+      ],
+      maxExportNum: 1000000,
+      loading: false,
+      rules: {
+        username: [
+          {max: 30, message: '长度小于 30 个字符', trigger: 'blur'}
+        ],
+        src: [
+          {  message: '请输入正确的IP地址', validator: this.validateIP, trigger: 'blur' },
+        ],        
+        dst: [
+          { message: '请输入正确的IP地址', validator: this.validateIP, trigger: 'blur' },
+        ],               
+      },            
     }
   },
   methods: {
+    setSearchData() {
+        this.searchForm = JSON.parse(JSON.stringify(this.defSearchForm));
+    },    
+    handleSearch() {
+      this.$refs["searchForm"].validate((valid) => {
+        if (!valid) {
+          console.log('error submit!!');
+          return false;
+        }
+        this.getData(1)
+      })          
+    },
+    searchEnterFun(e) {
+        var keyCode = window.event ? e.keyCode : e.which;
+        if (keyCode == 13) {
+            this.handleSearch()
+        }
+    },        
     getData(p) {
+      this.loading = true
+      if (! this.searchForm.date) {
+        this.searchForm.date = ["", ""];
+      }        
       axios.get('/set/audit/list', {
         params: {
           page: p,
+          search: this.searchForm,
         }
       }).then(resp => {
         var data = resp.data.data
         console.log(data);
         this.tableData = data.datas;
         this.count = data.count
+        this.loading = false
       }).catch(error => {
         this.$message.error('哦，请求出错');
         console.log(error);
@@ -120,22 +218,79 @@ export default {
     pageChange(p) {
       this.getData(p)
     },
-
-    handleDel(row) {
-      axios.post('/set/audit/del?id=' + row.id).then(resp => {
-        var rdata = resp.data
-        if (rdata.code === 0) {
-          this.$message.success(rdata.msg);
-          this.getData(1);
-        } else {
-          this.$message.error(rdata.msg);
+    handleExport() {
+      if (this.count > this.maxExportNum) {
+        var formatNum = (this.maxExportNum + "").replace(/\d{1,3}(?=(\d{3})+$)/g,function(s){
+           return s+','
+        })
+        this.$message.error("你导出的数据量超过" + formatNum + "条，请调整搜索条件，再导出");
+        return ;
+      }
+      if (! this.searchForm.date) {
+        this.searchForm.date = ["", ""];
+      }
+      const exporting = this.$loading({
+            lock: true,
+            text: '玩命导出中，请稍等片刻...',
+            spinner: 'el-icon-loading',
+            background: 'rgba(0, 0, 0, 0.7)'
+      });
+      axios.get('/set/audit/export', {
+        params: {
+          search: this.searchForm,
         }
-        console.log(rdata);
+      }).then(resp => {
+        var rdata = resp.data
+        if (rdata.code && rdata.code != 0) {
+            exporting.close();
+            this.$message.error(rdata.msg);
+            return ;
+        }
+        exporting.close();
+        this.$message.success("成功导出CSV文件")
+        let csvData = 'data:text/csv;charset=utf-8,\uFEFF' + rdata
+        this.createDownLoadClick(csvData, `anylink_audit_log_` + Date.parse(new Date()) + `.csv`)
       }).catch(error => {
+        exporting.close();
         this.$message.error('哦，请求出错');
         console.log(error);
       });
     },
+    createDownLoadClick(content, fileName) {
+        const link = document.createElement('a')
+        link.href = encodeURI(content)
+        link.download = fileName
+        document.body.appendChild(link)
+        link.click()
+        document.body.removeChild(link)
+    },    
+    protoFormat(row) {
+        var access_proto = row.access_proto
+        if (row.access_proto == 0) {
+            switch (row.protocol) {
+                case 6: access_proto = 2; break;
+                case 17: access_proto = 1; break;
+            }
+        }
+        return this.accessProtoArr[access_proto]
+    },
+    rest() {
+        console.log("rest");
+        this.setSearchData();
+        this.handleSearch();
+    }, 
+    validateIP(rule, value, callback) {
+        if (value === '' || typeof value === 'undefined' || value == null) {
+            callback()
+        } else {
+            const reg = /^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])$/
+            if ((!reg.test(value)) && value !== '') {
+            callback(new Error('请输入正确的IP地址'))
+            } else {
+            callback()
+            }
+        }
+    },        
   },
 }
 </script>
diff --git a/anylink/web/src/pages/set/Other.vue b/anylink/web/src/pages/set/Other.vue
index 20fdf02..43f96fa 100644
--- a/anylink/web/src/pages/set/Other.vue
+++ b/anylink/web/src/pages/set/Other.vue
@@ -13,7 +13,7 @@
             <el-input v-model="dataSmtp.username"></el-input>
           </el-form-item>
           <el-form-item label="密码" prop="password">
-            <el-input v-model="dataSmtp.password"></el-input>
+            <el-input type="password" v-model="dataSmtp.password" placeholder="密码为空则不修改"></el-input>
           </el-form-item>
           <el-form-item label="加密类型" prop="encryption">
             <el-radio-group v-model="dataSmtp.encryption">
@@ -32,6 +32,32 @@
         </el-form>
       </el-tab-pane>
 
+      <el-tab-pane label="审计日志" name="dataAuditLog">
+        <el-form :model="dataAuditLog" ref="dataAuditLog" :rules="rules" label-width="100px" class="tab-one">
+          <el-form-item label="存储时长" prop="life_day">
+                <el-input-number v-model="dataAuditLog.life_day" :min="0" :max="365" size="small" label="天数"></el-input-number>  天
+                <p class="input_tip">范围: 0 ~ 365天 , <strong style="color:#EA3323;">0 代表永久保存</strong></p>
+          </el-form-item>
+          <el-form-item label="清理时间" prop="clear_time">
+            <el-time-select
+                v-model="dataAuditLog.clear_time"
+                :picker-options="{
+                    start: '00:00',
+                    step: '01:00',
+                    end: '23:00'
+                }"
+                editable=false,
+                size="small"
+                placeholder="请选择"
+                style="width:130px;">
+                </el-time-select>  
+            </el-form-item>
+          <el-form-item>
+            <el-button type="primary" @click="submitForm('dataAuditLog')">保存</el-button>
+            <el-button @click="resetForm('dataAuditLog')">重置</el-button>
+          </el-form-item>          
+        </el-form>
+      </el-tab-pane>     
       <el-tab-pane label="其他设置" name="dataOther">
         <el-form :model="dataOther" ref="dataOther" :rules="rules" label-width="100px" class="tab-one">
 
@@ -51,6 +77,15 @@
             </el-input>
           </el-form-item>
 
+          <el-form-item label="自定义首页" prop="homeindex">
+            <el-input
+                type="textarea"
+                :rows="5"
+                placeholder="请输入内容"
+                v-model="dataOther.homeindex">
+            </el-input>
+          </el-form-item>
+
           <el-form-item label="账户开通邮件" prop="account_mail">
             <el-input
                 type="textarea"
@@ -95,6 +130,7 @@ export default {
     return {
       activeName: 'dataSmtp',
       dataSmtp: {},
+      dataAuditLog: {},
       dataOther: {},
       rules: {
         host: {required: true, message: '请输入服务器地址', trigger: 'blur'},
@@ -113,9 +149,12 @@ export default {
         case "dataSmtp":
           this.getSmtp()
           break
+        case "dataAuditLog":
+          this.getAuditLog()
+          break          
         case "dataOther":
           this.getOther()
-          break
+          break          
       }
     },
     getSmtp() {
@@ -132,6 +171,20 @@ export default {
         console.log(error);
       });
     },
+    getAuditLog() {
+      axios.get('/set/other/audit_log').then(resp => {
+        let rdata = resp.data
+        console.log(rdata)
+        if (rdata.code !== 0) {
+          this.$message.error(rdata.msg);
+          return;
+        }
+        this.dataAuditLog = rdata.data
+      }).catch(error => {
+        this.$message.error('哦，请求出错');
+        console.log(error);
+      });
+    },     
     getOther() {
       axios.get('/set/other').then(resp => {
         let rdata = resp.data
@@ -165,6 +218,17 @@ export default {
 
             })
             break;
+          case "dataAuditLog":
+            axios.post('/set/other/audit_log/edit', this.dataAuditLog).then(resp => {
+              var rdata = resp.data
+              console.log(rdata);
+              if (rdata.code === 0) {
+                this.$message.success(rdata.msg);
+              } else {
+                this.$message.error(rdata.msg);
+              }
+            })
+            break;
           case "dataOther":
             axios.post('/set/other/edit', this.dataOther).then(resp => {
               var rdata = resp.data
@@ -192,4 +256,9 @@ export default {
   width: 600px;
 }
 
+.input_tip {
+    line-height: 1.428;    
+    margin:2px 0 0 0;
+}
+
 </style>
diff --git a/anylink/web/src/pages/set/System.vue b/anylink/web/src/pages/set/System.vue
index 52c63c8..ee39464 100644
--- a/anylink/web/src/pages/set/System.vue
+++ b/anylink/web/src/pages/set/System.vue
@@ -49,9 +49,10 @@
         <span>运行环境</span>
       </div>
       <Cell left="软件版本" :right="system.sys.appVersion" divider/>
-      <Cell left="GO版本" :right="system.sys.goOs" divider/>
+      <Cell left="软件CommitId" :right="system.sys.appCommitId" divider/>
+      <Cell left="GO系统" :right="system.sys.goOs" divider/>
       <Cell left="GoArch" :right="system.sys.goArch" divider/>
-      <Cell left="GoVersion" :right="system.sys.goVersion" divider/>
+      <Cell left="GO版本" :right="system.sys.goVersion" divider/>
       <Cell left="Goroutine" :right="system.sys.goroutine"/>
     </el-card>
 
diff --git a/anylink/web/src/pages/user/List.vue b/anylink/web/src/pages/user/List.vue
index 2b1f564..45b3805 100644
--- a/anylink/web/src/pages/user/List.vue
+++ b/anylink/web/src/pages/user/List.vue
@@ -12,7 +12,7 @@
         </el-form-item>
 
         <el-form-item label="用户名:">
-          <el-input size="small" v-model="searchData" placeholder="请输入内容"></el-input>
+          <el-input size="small" v-model="searchData" placeholder="请输入内容" @keydown.enter.native="searchEnterFun"></el-input>
         </el-form-item>
 
         <el-form-item>
@@ -25,7 +25,7 @@
           <el-button
               size="small"
               icon="el-icon-refresh"
-              @click="searchData=''">重置搜索
+              @click="reset">重置搜索
           </el-button>
         </el-form-item>
       </el-form>
@@ -401,7 +401,17 @@ export default {
     },
     resetForm(formName) {
       this.$refs[formName].resetFields();
-    }
+    },
+    searchEnterFun(e) {
+        var keyCode = window.event ? e.keyCode : e.which;
+        if (keyCode == 13) {
+            this.handleSearch()
+        }
+    }, 
+    reset() {
+        this.searchData = "";
+        this.handleSearch();
+    },       
   },
 }
 </script>
diff --git a/anylink/web/src/pages/user/Online.vue b/anylink/web/src/pages/user/Online.vue
index a2d339e..f9041cb 100644
--- a/anylink/web/src/pages/user/Online.vue
+++ b/anylink/web/src/pages/user/Online.vue
@@ -128,7 +128,7 @@ export default {
 
     const chatTimer = setInterval(() => {
       this.getData();
-    }, 2000);
+    }, 10000);
 
     this.$once('hook:beforeDestroy', () => {
       clearInterval(chatTimer);
diff --git a/anylink/web/src/pages/user/Policy.vue b/anylink/web/src/pages/user/Policy.vue
index b2a852e..848a38e 100644
--- a/anylink/web/src/pages/user/Policy.vue
+++ b/anylink/web/src/pages/user/Policy.vue
@@ -136,10 +136,11 @@
         :visible.sync="user_edit_dialog"
         width="750px"
         top="50px"
+        @close='closeDialog'
         center>
 
       <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="ruleForm">
-        <el-tabs v-model="activeTab">
+        <el-tabs v-model="activeTab" :before-leave="beforeTabLeave">
            <el-tab-pane label="通用" name="general">
                 <el-form-item label="ID" prop="id">
                 <el-input v-model="ruleForm.id" disabled></el-input>
@@ -283,7 +284,7 @@ export default {
         re_upper_limit : 0,        
       },
       rules: {
-        name: [
+        username: [
           {required: true, message: '请输入用户名', trigger: 'blur'},
           {max: 30, message: '长度小于 30 个字符', trigger: 'blur'}
         ],
@@ -398,7 +399,25 @@ export default {
       } else {
         this.$set(this.readMore, id, true);
       }
-    },    
+    },
+    beforeTabLeave() {
+      var isSwitch = true
+      if (! this.user_edit_dialog) {
+        return isSwitch;
+      }      
+      this.$refs['ruleForm'].validate((valid) => {
+        if (!valid) {
+          this.$message.error("错误：您有必填项没有填写。")
+          isSwitch = false;
+          return false;
+        }
+      });      
+      return isSwitch;
+    },
+    closeDialog() {
+      this.user_edit_dialog = false;
+      this.activeTab = "general";
+    },        
   },
 
 }