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wireguard_by_yuanlam.sh
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#!/usr/bin/env bash
#
# 这是一个用于配置和启动WireGuard VPN服务器的Shell脚本。经由 yuan1am 添加中文注释并略作修改。
#
# 版权所有 (C) 2019 - 2020 Teddysun <[email protected]>
#
# 参考网址:
# https://www.wireguard.com
# https://git.zx2c4.com/WireGuard
# https://teddysun.com/554.html
########################################
############### 输出和日志 ###############
########################################
# 定义红色输出函数
_red() {
printf '\033[1;31;31m%b\033[0m' "$1"
}
# 定义绿色输出函数
_green() {
printf '\033[1;31;32m%b\033[0m' "$1"
}
# 定义黄色输出函数
_yellow() {
printf '\033[1;31;33m%b\033[0m' "$1"
}
# 定义默认输出函数
_echo() {
printf '\033[1;31;33m%b\033[0m' "$1"
printf "\n"
}
# 打印带有日期的参数
_printargs() {
printf -- "%s" "[$(date)] "
printf -- "%s" "$1"
printf "\n"
}
# 信息输出函数
_info() {
_printargs "$@"
}
# 警告输出函数
_warn() {
printf -- "%s" "[$(date)] "
_yellow "$1"
printf "\n"
}
# 错误输出函数，并退出程序
_error() {
printf -- "%s" "[$(date)] "
_red "$1"
printf "\n"
exit 2
}
# 退出函数，输出终止信息
_exit() {
printf "\n"
_red "脚本已被终止。"
printf "\n"
exit 1
}
# 设置信号捕获，当脚本接收到INT、QUIT、TERM信号时执行_exit函数
trap _exit INT QUIT TERM
# 获取当前脚本所在目录并赋值给cur_dir变量
cur_dir="$(cd -P -- "$(dirname -- "$0")" && pwd -P)"
# 如果当前用户不是root，则输出错误信息并退出脚本
[ ${EUID} -ne 0 ] && _red "此脚本必须以root身份运行\n" && exit 1
########################################
############### 安装和检查 ###############
########################################
# 检查命令是否存在
_exists() {
local cmd="$1"
if eval type type > /dev/null 2>&1; then
eval type "$cmd" > /dev/null 2>&1
elif command > /dev/null 2>&1; then
command -v "$cmd" > /dev/null 2>&1
else
which "$cmd" > /dev/null 2>&1
fi
local rt=$?
return ${rt}
}
# 检查 WireGuard 是否已安装
_is_installed() {
install_flag=(0 0)
if _exists "wg" && _exists "wg-quick"; then
install_flag[0]=1
fi
if [ -s "/lib/modules/$(uname -r)/extra/wireguard.ko" ] \
|| [ -s "/lib/modules/$(uname -r)/extra/wireguard.ko.xz" ] \
|| [ -s "/lib/modules/$(uname -r)/updates/dkms/wireguard.ko" ] \
|| [ -s "/lib/modules/$(uname -r)/updates/dkms/wireguard.ko.xz" ] \
|| [ -s "/lib/modules/$(uname -r)/kernel/wireguard/wireguard.ko" ] \
|| [ -s "/lib/modules/$(uname -r)/kernel/drivers/net/wireguard/wireguard.ko" ] \
|| [ -s "/lib/modules/$(uname -r)/kernel/drivers/net/wireguard/wireguard.ko.xz" ]; then
install_flag[1]=1
fi
if [ "${install_flag[0]}" = "1" ] && [ "${install_flag[1]}" = "1" ]; then
return 0
fi
if [ "${install_flag[0]}" = "1" ] && [ "${install_flag[1]}" = "0" ]; then
return 1
fi
if [ "${install_flag[0]}" = "0" ] && [ "${install_flag[1]}" = "1" ]; then
return 2
fi
if [ "${install_flag[0]}" = "0" ] && [ "${install_flag[1]}" = "0" ]; then
return 3
fi
}
# 获取最新的 WireGuard 模块版本号
get_latest_module_ver() {
wireguard_ver="$(wget --no-check-certificate -qO- https://api.github.com/repos/WireGuard/wireguard-linux-compat/tags | grep 'name' | head -1 | cut -d\" -f4)"
if [ -z "${wireguard_ver}" ]; then
wireguard_ver="$(curl -Lso- https://api.github.com/repos/WireGuard/wireguard-linux-compat/tags | grep 'name' | head -1 | cut -d\" -f4)"
fi
if [ -z "${wireguard_ver}" ]; then
_error "从 github 获取最新的 wireguard 模块版本失败"
fi
}
# 获取最新的 WireGuard 工具版本号
get_latest_tools_ver() {
wireguard_tools_ver="$(wget --no-check-certificate -qO- https://api.github.com/repos/WireGuard/wireguard-tools/tags | grep 'name' | head -1 | cut -d\" -f4)"
if [ -z "${wireguard_tools_ver}" ]; then
wireguard_tools_ver="$(curl -Lso- https://api.github.com/repos/WireGuard/wireguard-tools/tags | grep 'name' | head -1 | cut -d\" -f4)"
fi
if [ -z "${wireguard_tools_ver}" ]; then
_error "从 github 获取最新的 wireguard 工具版本失败"
fi
}
# 检查操作系统版本
check_os() {
_info "正在检查操作系统版本"
if _exists "virt-what"; then
virt="$(virt-what)"
elif _exists "systemd-detect-virt"; then
virt="$(systemd-detect-virt)"
fi
if [ -n "${virt}" -a "${virt}" = "lxc" ]; then
_error "虚拟化为LXC，不支持。"
fi
if [ -n "${virt}" -a "${virt}" = "openvz" ] || [ -d "/proc/vz" ]; then
_error "虚拟化为OpenVZ，不支持。"
fi
[ -z "$(_os)" ] && _error "不支持的操作系统"
case "$(_os)" in
ubuntu)
[ -n "$(_os_ver)" -a "$(_os_ver)" -lt 16 ] && _error "不支持的操作系统，请更换为Ubuntu 16+后再试。"
;;
debian|raspbian)
[ -n "$(_os_ver)" -a "$(_os_ver)" -lt 8 ] && _error "不支持的操作系统，请更换为De(Rasp)bian 8+后再试。"
;;
fedora)
[ -n "$(_os_ver)" -a "$(_os_ver)" -lt 29 ] && _error "不支持的操作系统，请更换为Fedora 29+后再试。"
;;
centos)
[ -n "$(_os_ver)" -a "$(_os_ver)" -lt 7 ] && _error "不支持的操作系统，请更换为CentOS 7+后再试。"
;;
*)
_error "不支持的操作系统"
;;
esac
}
# 检查Linux内核版本
check_kernel_version() {
kernel_version="$(uname -r | cut -d- -f1)"
if _version_ge ${kernel_version} 5.6.0; then
return 0
else
return 1
fi
}
# 检测命令执行是否出错
_error_detect() {
local cmd="$1"
_info "${cmd}"
eval ${cmd} 1> /dev/null
if [ $? -ne 0 ]; then
_error "执行命令 (${cmd}) 失败，请检查后再试。"
fi
}
# 比较版本号，判断第一个是否大于第二个
_version_gt(){
test "$(echo "$@" | tr " " "\n" | sort -V | head -n 1)" != "$1"
}
# 比较版本号，判断第一个是否大于等于第二个
_version_ge(){
test "$(echo "$@" | tr " " "\n" | sort -rV | head -n 1)" == "$1"
}
########################################
############### 网络和系统 ###############
########################################
# 获取IPv4地址
_ipv4() {
local ipv4="$( ip addr | egrep -o '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | \
egrep -v "^192\.168|^172\.1[6-9]\.|^172\.2[0-9]\.|^172\.3[0-2]\.|^10\.|^127\.|^255\.|^0\.|^169\.254\." | head -n 1 )"
[ -z "${ipv4}" ] && ipv4="$( wget -qO- -t1 -T2 ipv4.icanhazip.com )"
[ -z "${ipv4}" ] && ipv4="$( wget -qO- -t1 -T2 ipinfo.io/ip )"
printf -- "%s" "${ipv4}"
}
# 获取网络接口卡名称
_nic() {
local nic=""
nic="$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)' | head -1)"
printf -- "%s" "${nic}"
}
# 随机生成端口号
_port() {
local port="$(shuf -i 1024-20480 -n 1)"
while true; do
if _exists "netstat" && netstat -tunlp | grep -w "${port}" > /dev/null 2>&1; then
port="$(shuf -i 1024-20480 -n 1)"
else
break
fi
done
printf -- "%s" "${port}"
}
# 获取操作系统类型
_os() {
local os=""
[ -f "/etc/debian_version" ] && source /etc/os-release && os="${ID}" && printf -- "%s" "${os}" && return
[ -f "/etc/fedora-release" ] && os="fedora" && printf -- "%s" "${os}" && return
[ -f "/etc/redhat-release" ] && os="centos" && printf -- "%s" "${os}" && return
}
# 获取操作系统的完整名称
_os_full() {
[ -f /etc/redhat-release ] && awk '{print ($1,$3~/^[0-9]/?$3:$4)}' /etc/redhat-release && return
[ -f /etc/os-release ] && awk -F'[= "]' '/PRETTY_NAME/{print $3,$4,$5}' /etc/os-release && return
[ -f /etc/lsb-release ] && awk -F'[="]+' '/DESCRIPTION/{print $2}' /etc/lsb-release && return
}
# 获取操作系统的主要版本号
_os_ver() {
local main_ver="$( echo $(_os_full) | grep -oE "[0-9.]+")"
printf -- "%s" "${main_ver%%.*}"
}
# 输出提示信息并等待用户确认
if ! _is_installed; then
# 如果 WireGuard 没有安装，则输出提示信息并等待用户确认
_warn "WireGuard依赖于内核，某些VPS机器需自行更换内核后再进行安装，输入回车确认并继续"
read -p ""
fi
initialize_config() {
CONFIG_FILE="$cur_dir/wg_default_config.conf"
if [ ! -f "$CONFIG_FILE" ]; then
_echo "首次执行脚本，需进行初始化配置。"
while true; do
_echo "请根据本机网络环境，选择 Wireguard 运行模式："
_echo "1. 拥有公网IP（1接口多peers）"
_echo "2. 处于内网环境（1接口1peer）"
read -p "输入选择 (1 或 2): " role_choice
if [ "$role_choice" = "1" ]; then
read -p "请自定义本机的WireGuard接口名称 [默认: vps]: " default_server_suffix
DEFAULT_SERVER_SUFFIX=${default_server_suffix:-vps}
read -p "请输入本机的WireGuard接口地址 [默认: 10.88.88.1]: " server_wg_ipv4
SERVER_WG_IPV4=${server_wg_ipv4:-10.88.88.1}
read -p "请输入WireGuard服务端口 [默认: 51820]: " server_wg_port
SERVER_WG_PORT=${server_wg_port:-51820}
# read -p "请输入WireGuard接口使用的DNS服务器 [默认: 1.1.1.1]: " client_dns
# CLIENT_DNS=${client_dns:-1.1.1.1}
read -p "请自定义对端Peer的接口名称 [默认使用服务器接口名称：home]: " default_client_suffix
DEFAULT_CLIENT_SUFFIX=${default_client_suffix:-home}
read -p "请输入对端Peer的起始地址 [默认: 10.88.88.2]: " client_wg_ipv4
CLIENT_WG_IPV4=${client_wg_ipv4:-10.88.88.2}
read -p "请输入对端Peer的内网IP地址 [默认: 留空]: " client_lan_ipv4
CLIENT_LAN_IPV4=${client_lan_ipv4:-}
cat > "$CONFIG_FILE" << EOF
# 自定义变量
ROLE_CHOICE="$role_choice"
# 本机WireGuard接口名称
DEFAULT_SERVER_SUFFIX="$DEFAULT_SERVER_SUFFIX"
# 本机WireGuard接口的隧道地址
SERVER_WG_IPV4="$SERVER_WG_IPV4"
# WireGuard端口
SERVER_WG_PORT="$SERVER_WG_PORT"
# 对端WireGuard接口名称
DEFAULT_CLIENT_SUFFIX="${DEFAULT_CLIENT_SUFFIX}"
# 对端WireGuard接口地址
CLIENT_WG_IPV4="$CLIENT_WG_IPV4"
# 对端内网IP地址
CLIENT_LAN_IPV4="$CLIENT_LAN_IPV4"
# WireGuard服务器网络接口卡名称
SERVER_WG_NIC="server_$DEFAULT_SERVER_SUFFIX"
EOF
break
elif [ "$role_choice" = "2" ]; then
read -p "请自定义本机的WireGuard接口名称 [默认使用服务器接口名称：home]: " default_client_suffix
DEFAULT_CLIENT_SUFFIX=${default_client_suffix:-home}
read -p "请输入本机的WireGuard接口地址 [默认: 10.88.88.2]: " client_wg_ipv4
CLIENT_WG_IPV4=${client_wg_ipv4:-10.88.88.2}
read -p "请输入本机的内网IP地址 [默认: 192.168.1.0]: " client_lan_ipv4
CLIENT_LAN_IPV4=${client_lan_ipv4:-192.168.1.0}
read -p "请输入对端的公网地址（IP或域名） [默认: abcde.com]: " server_pub_addr
SERVER_PUB_ADDR=${server_pub_addr:-abcde.com}
read -p "请输入对端的WireGuard服务端口 [默认: 51820]: " server_wg_port
SERVER_WG_PORT=${server_wg_port:-51820}
read -p "请自定义对端的WireGuard接口名称 [默认使用服务器接口名称：ROS]: " default_server_suffix
DEFAULT_SERVER_SUFFIX=${default_client_suffix:-ROS}
read -p "请输入对端的WireGuard接口地址 [默认: 10.88.88.1]: " server_wg_ipv4
SERVER_WG_IPV4=${server_wg_ipv4:-10.88.88.1}
read -p "请输入对端的WireGuard接口公钥 [默认: 空]: " server_pub_key
SERVER_PUB_KEY=${server_pub_key:-}
# read -p "请输入WireGuard接口使用的DNS服务器 [默认: 1.1.1.1]: " client_dns
# CLIENT_DNS=${client_dns:-1.1.1.1}
cat > "$CONFIG_FILE" << EOF
# 自定义变量
ROLE_CHOICE="$role_choice"
# 本机WireGuard接口名称
DEFAULT_CLIENT_SUFFIX="$DEFAULT_CLIENT_SUFFIX"
# 本机WireGuard接口的隧道地址
CLIENT_WG_IPV4="$CLIENT_WG_IPV4"
# 本机内网IP地址
CLIENT_LAN_IPV4="$CLIENT_LAN_IPV4"
# 对端公网
SERVER_PUB_ADDR="$SERVER_PUB_ADDR"
# 对端WireGuard端口
SERVER_WG_PORT="$SERVER_WG_PORT"
# 对端WireGuard接口名称
DEFAULT_SERVER_SUFFIX="${DEFAULT_SERVER_SUFFIX}"
# 对端的WireGuard接口地址
SERVER_WG_IPV4="$SERVER_WG_IPV4"
# 对端的WireGuard接口公钥
SERVER_PUB_KEY="$SERVER_PUB_KEY"
# WireGuard服务器网络接口卡名称
SERVER_WG_NIC="client_$DEFAULT_CLIENT_SUFFIX"
EOF
break
else
echo "无效的选择，请重新输入。"
fi
done
fi
}
# 从源码安装wireguard模块
install_wg_module() {
get_latest_module_ver
wireguard_name="wireguard-linux-compat-$(echo ${wireguard_ver} | grep -oE '[0-9.]+')"
wireguard_url="https://github.com/WireGuard/wireguard-linux-compat/archive/${wireguard_ver}.tar.gz"
cd ${cur_dir}
_error_detect "wget --no-check-certificate -qO ${wireguard_name}.tar.gz ${wireguard_url}"
_error_detect "tar zxf ${wireguard_name}.tar.gz"
_error_detect "cd ${wireguard_name}/src"
_error_detect "make"
_error_detect "make install"
_error_detect "cd ${cur_dir} && rm -fr ${wireguard_name}.tar.gz ${wireguard_name}"
}
# 从源码安装wireguard工具
install_wg_tools() {
get_latest_tools_ver
wireguard_tools_name="wireguard-tools-$(echo ${wireguard_tools_ver} | grep -oE '[0-9.]+')"
wireguard_tools_url="https://github.com/WireGuard/wireguard-tools/archive/${wireguard_tools_ver}.tar.gz"
cd ${cur_dir}
_error_detect "wget --no-check-certificate -qO ${wireguard_tools_name}.tar.gz ${wireguard_tools_url}"
_error_detect "tar zxf ${wireguard_tools_name}.tar.gz"
_error_detect "cd ${wireguard_tools_name}/src"
_error_detect "make"
_error_detect "make install"
_error_detect "cd ${cur_dir} && rm -fr ${wireguard_tools_name}.tar.gz ${wireguard_tools_name}"
}
# 安装wireguard依赖包
install_wg_pkgs() {
_info "安装wireguard的依赖包"
case "$(_os)" in
ubuntu|debian|raspbian)
_error_detect "apt-get update"
_error_detect "apt-get -y install qrencode"
# _error_detect "apt-get -y install resolvconf"
_error_detect "apt-get -y install iptables"
_error_detect "apt-get -y install bc"
_error_detect "apt-get -y install gcc"
_error_detect "apt-get -y install make"
_error_detect "apt-get -y install libmnl-dev"
_error_detect "apt-get -y install libelf-dev"
if [ ! -d "/usr/src/linux-headers-$(uname -r)" ]; then
if [ "$(_os)" = "raspbian" ]; then
_error_detect "apt-get -y install raspberrypi-kernel-headers"
else
_error_detect "apt-get -y install linux-headers-$(uname -r)"
fi
fi
;;
fedora)
_error_detect "dnf -y install qrencode"
# _error_detect "dnf -y install openresolv"
_error_detect "dnf -y install bc"
_error_detect "dnf -y install gcc"
_error_detect "dnf -y install make"
_error_detect "dnf -y install libmnl-devel"
_error_detect "dnf -y install elfutils-libelf-devel"
[ ! -d "/usr/src/kernels/$(uname -r)" ] && _error_detect "dnf -y install kernel-headers" && _error_detect "dnf -y install kernel-devel"
;;
centos)
_error_detect "yum -y install epel-release"
_error_detect "yum -y install qrencode"
_error_detect "yum -y install bc"
_error_detect "yum -y install gcc"
_error_detect "yum -y install make"
_error_detect "yum -y install yum-utils"
if [ -n "$(_os_ver)" -a "$(_os_ver)" -eq 8 ]; then
yum-config-manager --enable PowerTools > /dev/null 2>&1 || yum-config-manager --enable powertools > /dev/null 2>&1
fi
_error_detect "yum -y install libmnl-devel"
_error_detect "yum -y install elfutils-libelf-devel"
[ ! -d "/usr/src/kernels/$(uname -r)" ] && _error_detect "yum -y install kernel-headers" && _error_detect "yum -y install kernel-devel"
;;
*)
;; # 什么也不做
esac
}
# 从软件源安装
install_wg_1() {
install_wg_pkgs
_info "从软件源安装WireGuard"
case "$(_os)" in
ubuntu)
_error_detect "apt-get update"
_error_detect "apt-get -y install wireguard"
;;
debian)
echo "deb http://deb.debian.org/debian/ unstable main" > /etc/apt/sources.list.d/unstable.list
printf 'Package: *\nPin: release a=unstable\nPin-Priority: 90\n' > /etc/apt/preferences.d/limit-unstable
_error_detect "apt-get update"
_error_detect "apt-get -y install wireguard"
;;
fedora)
if [ -n "$(_os_ver)" -a "$(_os_ver)" -lt 31 ]; then
_error_detect "dnf -y copr enable jdoss/wireguard"
_error_detect "dnf -y install wireguard-dkms wireguard-tools"
else
_error_detect "dnf -y install wireguard-tools"
fi
;;
centos)
if [ -n "$(_os_ver)" -a "$(_os_ver)" -eq 7 ]; then
_error_detect "curl -Lso /etc/yum.repos.d/wireguard.repo https://copr.fedorainfracloud.org/coprs/jdoss/wireguard/repo/epel-7/jdoss-wireguard-epel-7.repo"
fi
if [ -n "$(_os_ver)" -a "$(_os_ver)" -eq 8 ]; then
_error_detect "curl -Lso /etc/yum.repos.d/wireguard.repo https://copr.fedorainfracloud.org/coprs/jdoss/wireguard/repo/epel-8/jdoss-wireguard-epel-8.repo"
fi
_error_detect "yum -y install wireguard-dkms"
_error_detect "yum -y install wireguard-tools"
;;
*)
;; # 什么也不做
esac
}
# 从源码安装
install_wg_2() {
install_wg_pkgs
_info "从源码安装WireGuard"
install_wg_module
install_wg_tools
}
# 从软件源安装WireGuard工具
install_wg_3() {
install_wg_pkgs
_info "从软件源安装WireGuard工具"
case "$(_os)" in
ubuntu)
_error_detect "add-apt-repository ppa:wireguard/wireguard"
_error_detect "apt-get update"
_error_detect "apt-get -y install --no-install-recommends wireguard-tools"
;;
debian)
echo "deb http://deb.debian.org/debian/ unstable main" > /etc/apt/sources.list.d/unstable.list
printf 'Package: *\nPin: release a=unstable\nPin-Priority: 90\n' > /etc/apt/preferences.d/limit-unstable
_error_detect "apt-get update"
_error_detect "apt-get -y install --no-install-recommends wireguard-tools"
;;
fedora)
if [ -n "$(_os_ver)" -a "$(_os_ver)" -lt 31 ]; then
_error_detect "dnf -y copr enable jdoss/wireguard"
_error_detect "dnf -y install wireguard-tools"
else
_error_detect "dnf -y install wireguard-tools"
fi
;;
centos)
if [ -n "$(_os_ver)" -a "$(_os_ver)" -eq 7 ]; then
_error_detect "curl -Lso /etc/yum.repos.d/wireguard.repo https://copr.fedorainfracloud.org/coprs/jdoss/wireguard/repo/epel-7/jdoss-wireguard-epel-7.repo"
fi
if [ -n "$(_os_ver)" -a "$(_os_ver)" -eq 8 ]; then
_error_detect "curl -Lso /etc/yum.repos.d/wireguard.repo https://copr.fedorainfracloud.org/coprs/jdoss/wireguard/repo/epel-8/jdoss-wireguard-epel-8.repo"
fi
_error_detect "yum -y install wireguard-tools"
;;
*)
;; # 什么也不做
esac
}
# 从源码安装WireGuard工具
install_wg_4() {
install_wg_pkgs
_info "从源码安装WireGuard工具"
install_wg_tools
}
# 创建wg接口，本机作为服务端
create_server_if() {
SERVER_PRIVATE_KEY="$(wg genkey)"
SERVER_PUBLIC_KEY="$(echo ${SERVER_PRIVATE_KEY} | wg pubkey)"
CLIENT_PRIVATE_KEY="$(wg genkey)"
CLIENT_PUBLIC_KEY="$(echo ${CLIENT_PRIVATE_KEY} | wg pubkey)"
if [ -z "$CLIENT_LAN_IPV4" ]; then
AllowedIPs=${NEW_CLIENT_WG_IPV4}/32
else
AllowedIPs=${NEW_CLIENT_WG_IPV4}/32,${CLIENT_LAN_IPV4}/24
fi
_info "创建本机wireguard接口: /etc/wireguard/server_${DEFAULT_SERVER_SUFFIX}.conf"
[ ! -d "/etc/wireguard" ] && mkdir -p "/etc/wireguard"
cat > /etc/wireguard/server_${DEFAULT_SERVER_SUFFIX}.conf <<EOF
# 服务器接口 server_${DEFAULT_SERVER_SUFFIX}
[Interface]
Address = ${SERVER_WG_IPV4}/24
ListenPort = ${SERVER_WG_PORT}
MTU = 1420
PrivateKey = ${SERVER_PRIVATE_KEY}
# 客户端接口 client_${DEFAULT_CLIENT_SUFFIX}
[Peer]
PublicKey = ${CLIENT_PUBLIC_KEY}
AllowedIPs = ${AllowedIPs}
PersistentKeepalive = 25
EOF
chmod 600 /etc/wireguard/server_${DEFAULT_SERVER_SUFFIX}.conf
}
# 创建对端接口信息供客户端使用，本机作为服务端
create_client_config() {
_info "创建客户端接口配置: /etc/wireguard/client_${DEFAULT_CLIENT_SUFFIX}"
cat > /etc/wireguard/client_${DEFAULT_CLIENT_SUFFIX} <<EOF
# 以下信息填在对端客户端上
[Interface]
PrivateKey = ${CLIENT_PRIVATE_KEY}
Address = ${CLIENT_WG_IPV4}/24
MTU = 1420
[Peer]
PublicKey = ${SERVER_PUBLIC_KEY}
AllowedIPs = 0.0.0.0/0
Endpoint = ${SERVER_PUB_IPV4}:${SERVER_WG_PORT}
PersistentKeepalive = 25
EOF
chmod 600 /etc/wireguard/client_${DEFAULT_CLIENT_SUFFIX}
}
# 创建wg接口，本机作为客户端
create_client_if() {
CLIENT_PRIVATE_KEY="$(wg genkey)"
CLIENT_PUBLIC_KEY="$(echo ${CLIENT_PRIVATE_KEY} | wg pubkey)"
_info "创建本机wireguard接口: /etc/wireguard/client_${DEFAULT_CLIENT_SUFFIX}.conf"
[ ! -d "/etc/wireguard" ] && mkdir -p "/etc/wireguard"
cat > /etc/wireguard/client_${DEFAULT_CLIENT_SUFFIX}.conf <<EOF
# 本机接口 client_${DEFAULT_CLIENT_SUFFIX}
[Interface]
Address = ${CLIENT_WG_IPV4}/24
ListenPort = ${SERVER_WG_PORT}
MTU = 1420
PrivateKey = ${CLIENT_PRIVATE_KEY}
# 对端接口 server_${DEFAULT_SERVER_SUFFIX}
[Peer]
PublicKey = ${SERVER_PUB_KEY}
AllowedIPs = 0.0.0.0/0
Endpoint = ${SERVER_PUB_ADDR}:${SERVER_WG_PORT}
PersistentKeepalive = 25
EOF
chmod 600 /etc/wireguard/client_${DEFAULT_CLIENT_SUFFIX}.conf
_info "正在创建对端信息: /etc/wireguard/server_${DEFAULT_SERVER_SUFFIX}"
cat > /etc/wireguard/server_${DEFAULT_SERVER_SUFFIX} <<EOF
对端服务器填入以下信息
PublicKey = ${CLIENT_PUBLIC_KEY=}
AllowedIPs = ${CLIENT_WG_IPV4}/32,${CLIENT_LAN_IPV4}/24
EOF
}
# 生成默认客户端接口的QR码图片
generate_qr() {
_info "生成默认客户端接口的QR码图片"
_error_detect "qrencode -s8 -o /etc/wireguard/client_${DEFAULT_CLIENT_SUFFIX}.png < /etc/wireguard/client_${DEFAULT_CLIENT_SUFFIX}"
}
# 启用IP转发
enable_ip_forward() {
_info "启用IP转发"
sed -i '/net.ipv4.ip_forward/d' /etc/sysctl.conf # 删除现有的IPv4转发设置
echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf # 启用IPv4转发
sysctl -p >/dev/null 2>&1 # 应用新的系统配置
}
# 设置防火墙规则
set_firewall() {
source "$cur_dir/wg_default_config.conf" # 确保最新的配置被加载
_info "设置防火墙规则"
if _exists "firewall-cmd"; then
if firewall-cmd --state > /dev/null 2>&1; then
default_zone="$(firewall-cmd --get-default-zone)"
if [ "$(firewall-cmd --zone=${default_zone} --query-masquerade)" = "no" ]; then
_error_detect "firewall-cmd --permanent --zone=${default_zone} --add-masquerade"
fi
if ! firewall-cmd --list-ports | grep -qw "${SERVER_WG_PORT}/udp"; then
_error_detect "firewall-cmd --permanent --zone=${default_zone} --add-port=${SERVER_WG_PORT}/udp"
fi
_error_detect "firewall-cmd --reload"
else
_warn "Firewalld 服务单元未运行，请启动它并手动设置"
_warn "也许您需要像下面这样运行这些命令:"
_warn "systemctl start firewalld"
_warn "firewall-cmd --permanent --zone=public --add-masquerade"
_warn "firewall-cmd --permanent --zone=public --add-port=${SERVER_WG_PORT}/udp"
_warn "firewall-cmd --reload"
fi
else
if _exists "iptables"; then
iptables -A INPUT -p udp --dport ${SERVER_WG_PORT} -j ACCEPT
iptables -A FORWARD -i ${SERVER_WG_NIC} -j ACCEPT
iptables -t nat -A POSTROUTING -o ${SERVER_PUB_NIC} -j MASQUERADE
iptables-save > /etc/iptables.rules
if [ -d "/etc/network/if-up.d" ]; then
cat > /etc/network/if-up.d/iptables <<EOF
#!/bin/sh
/sbin/iptables-restore < /etc/iptables.rules
EOF
chmod +x /etc/network/if-up.d/iptables
fi
fi
fi
}
# WireGuard 安装完成
install_completed() {
source "$cur_dir/wg_default_config.conf" # 确保最新的配置被加载
_info "通过 wg-quick 启动 WireGuard 服务 ${SERVER_WG_NIC}"
_error_detect "systemctl daemon-reload"
_error_detect "systemctl start wg-quick@${SERVER_WG_NIC}"
_error_detect "systemctl enable wg-quick@${SERVER_WG_NIC}"
# 根据 ROLE_CHOICE 的值判断是服务端还是客户端
if [ "$ROLE_CHOICE" = "1" ]; then
_info "WireGuard 安装完成"
_info ""
_info "当前机器为服务端"
_info ""
_info "对端配置文件地址如下:"
_info "$(_green "/etc/wireguard/client_${DEFAULT_CLIENT_SUFFIX}")"
_info ""
_info "WireGuard VPN 默认客户端二维码如下:"
_info "$(_green "/etc/wireguard/client_${DEFAULT_CLIENT_SUFFIX}.png")"
_info ""
_info "下载并使用您的设备扫描此二维码"
_info ""
_info "尽情享受吧"
elif [ "$ROLE_CHOICE" = "2" ]; then
_info "WireGuard 安装完成"
_info ""
_info "当前机器为客户端"
_info ""
_info "对端信息存放于 /etc/wireguard/server_${DEFAULT_CLIENT_SUFFIX}"
_info "也可以复制一下内容"
_info ""
_info "请在对端接口的对应Peers里填入本机公钥:"
_info "$(_green "$CLIENT_PUBLIC_KEY")"
_info ""
_info "请在对端接口的对应Peers里填入Allowips:"
_info "$(_green "$CLIENT_WG_IPV4/32,$CLIENT_LAN_IPV4/24")"
_info ""
_info "尽情享受吧"
fi
}
check_version() {
_is_installed
rt=$?
if [ ${rt} -eq 0 ]; then
_exists "modinfo" && installed_wg_ver="$(modinfo -F version wireguard)"
[ -n "${installed_wg_ver}" ] && echo "wireguard-dkms 版本 : $(_green ${installed_wg_ver})"
installed_wg_tools_ver="$(wg --version | awk '{print $2}' | grep -oE '[0-9.]+')"
[ -n "${installed_wg_tools_ver}" ] && echo "wireguard-tools 版本: $(_green ${installed_wg_tools_ver})"
return 0
elif [ ${rt} -eq 1 ]; then
_red "WireGuard 工具存在，但WireGuard模块不存在\n" && return 1
elif [ ${rt} -eq 2 ]; then
_red "WireGuard模块存在，但WireGuard工具不存在\n" && return 2
elif [ ${rt} -eq 3 ]; then
_red "WireGuard 未安装\n" && return 3
fi
}
# 添加客户端
add_peers() {
source "$cur_dir/wg_default_config.conf" # 确保最新的配置被加载
if ! _is_installed; then
_red "WireGuard 未安装，请先安装后重试\n" && exit 1
fi
if [ "$ROLE_CHOICE" = "2" ]; then
_red "当前为1对1模式，请使用安装功能新增 Wireguard 接口\n" && exit 1
fi
default_server_if="/etc/wireguard/${SERVER_WG_NIC}.conf"
default_client_if="/etc/wireguard/client_${DEFAULT_CLIENT_SUFFIX}"
[ ! -s "${default_server_if}" ] && echo "默认服务器接口不存在 ($(_red ${default_server_if}))" && exit 1
[ ! -s "${default_client_if}" ] && echo "默认客户端接口不存在，当前不是服务端模式，无法添加客户端" && exit 1
while true; do
read -p "请输入新的Peer名称 (例如: wg1):" client
if [ -z "${client}" ]; then
_red "Peer名称不能为空\n"
else
new_client_if="/etc/wireguard/client_${client}"
if [ "${client}" = "${DEFAULT_CLIENT_SUFFIX}" ]; then
echo "默认Peer ($(_yellow ${client})) 已存在，请重新输入"
elif [ -s "${new_client_if}" ]; then
echo "Peer ($(_yellow ${client})) 已存在，请重新输入"
else
# 一旦用户输入有效的 Peer 名称，立即请求输入内网 IP 地址
read -p "请输入对端Peer的内网IP地址 [默认: 留空]: " new_client_lan_ipv4
NEW_CLIENT_LAN_IPV4=${new_client_lan_ipv4:-}
break
fi
fi
done
NEW_CLIENT_PRIVATE_KEY="$(wg genkey)"
NEW_CLIENT_PUBLIC_KEY="$(echo ${NEW_CLIENT_PRIVATE_KEY} | wg pubkey)"
SERVER_PUBLIC_KEY="$(grep -w "PublicKey" ${default_client_if} | awk '{print $3}')"
CLIENT_ENDPOINT="$(grep -w "Endpoint" ${default_client_if} | awk '{print $3}')"
# 获取客户端 IP 地址
client_files=($(find /etc/wireguard/ -name "client_*" | sort))
client_ipv4=()
for ((i=0; i<${#client_files[@]}; i++)); do
tmp_ipv4="$(grep -w "Address" ${client_files[$i]} | awk '{print $3}' | cut -d\/ -f1 )"
client_ipv4=(${client_ipv4[@]} ${tmp_ipv4})
done
# Sort array
client_ipv4_sorted=($(printf '%s\n' "${client_ipv4[@]}" | sort -V))
index=$(expr ${#client_ipv4[@]} - 1)
last_ip=$(echo ${client_ipv4_sorted[$index]} | cut -d. -f4)
issue_ip_last=$(expr ${last_ip} + 1)
[ ${issue_ip_last} -gt 254 ] && _red "Too many clients, IP addresses might be not enough\n" && exit 1
ipv4_comm=$(echo ${client_ipv4[$index]} | cut -d. -f1-3)
NEW_CLIENT_WG_IPV4="${ipv4_comm}.${issue_ip_last}"
if [ -z "$NEW_CLIENT_LAN_IPV4" ]; then
AllowedIPs=${NEW_CLIENT_WG_IPV4}/32
else
AllowedIPs=${NEW_CLIENT_WG_IPV4}/32,${NEW_CLIENT_LAN_IPV4}/24
fi
cat > ${new_client_if} <<EOF
# 以下信息填在对端客户端上
[Interface]
PrivateKey = ${NEW_CLIENT_PRIVATE_KEY}
Address = ${NEW_CLIENT_WG_IPV4}/24
MTU = 1420
[Peer]
PublicKey = ${SERVER_PUBLIC_KEY}
AllowedIPs = 0.0.0.0/0
Endpoint = ${CLIENT_ENDPOINT}
EOF
cat >> ${default_server_if} <<EOF
# 客户端接口 client_${client}
[Peer]
PublicKey = ${NEW_CLIENT_PUBLIC_KEY}
AllowedIPs = ${AllowedIPs}
PersistentKeepalive = 25
EOF
chmod 600 ${new_client_if}
echo "添加 WireGuard 客户端 ($(_green ${client})) 完成"
systemctl restart wg-quick@${SERVER_WG_NIC}
# 生成新的二维码图片
qrencode -s8 -o ${new_client_if}.png < ${new_client_if}
echo "生成新客户端 ($(_green ${client})) 的二维码图片完成"
echo
echo "WireGuard VPN 新客户端 ($(_green ${client})) 文件如下:"
_green "/etc/wireguard/client_${client}\n"
echo
echo "WireGuard VPN 新客户端 ($(_green ${client})) 的二维码如下:"
_green "/etc/wireguard/client_${client}.png\n"
echo "下载并使用您的设备扫描此二维码，尽情享受吧"
}
remove_peers() {
source "$cur_dir/wg_default_config.conf" # 确保最新的配置被加载
if ! _is_installed; then
_red "WireGuard 未安装，请先安装后重试\n" && exit 1
fi
if [ "$ROLE_CHOICE" = "2" ]; then
_red "当前为1对1模式，无法删除\n" && exit 1
fi
default_server_if="/etc/wireguard/${SERVER_WG_NIC}.conf"
[ ! -s "${default_server_if}" ] && echo "默认服务器接口不存在 ($(_red ${default_server_if}))" && exit 1
while true; do
read -p "请输入要删除的Peer名称 (例如: wg1):" client
if [ -z "${client}" ]; then
_red "Peer名称不能为空\n"
else
if [ "${client}" = "${DEFAULT_CLIENT_SUFFIX}" ]; then
echo "默认客户端 ($(_yellow ${client})) 不能被删除"
else
break
fi
fi
done
client_if="/etc/wireguard/client_${client}"
[ ! -s "${client_if}" ] && echo "客户端文件不存在 ($(_red ${client_if}))" && exit 1
tmp_tag="$(grep -w "Address" ${client_if} | awk '{print $3}' | cut -d\/ -f1 )"
sed -i '/'"$client"'/,+6d' ${default_server_if}
# 删除客户端接口文件
rm -f ${client_if}
[ -s "/etc/wireguard/client_${client}.png" ] && rm -f /etc/wireguard/client_${client}.png
systemctl restart wg-quick@${SERVER_WG_NIC}
echo "客户端名称 ($(_green ${client})) 已被删除"
}
# 列出客户端
list_peers() {
# 检查是否安装了WireGuard
source "$cur_dir/wg_default_config.conf" # 确保最新的配置被加载
if ! _is_installed; then
_red "WireGuard 未安装，请先安装后重试\n" && exit 1
fi
if [ "$ROLE_CHOICE" = "2" ]; then
_red "当前为1对1模式，请前往 /etc/wireguard/ 文件夹查看\n" && exit 1
fi
default_server_if="/etc/wireguard/server_${DEFAULT_SERVER_SUFFIX}.conf"
[ ! -s "${default_server_if}" ] && echo "默认服务器接口 ($(_red server_${DEFAULT_SERVER_SUFFIX})) 不存在" && exit 1
local line="+-------------------------------------------------------------------------+\n"
local string=%-35s
printf "${line}|${string} |${string} |\n${line}" " 客户端接口" " 客户端IP"
client_files=($(find /etc/wireguard/ -name "client_*" ! -name "*.png" | sort))
ips=($(grep -w "AllowedIPs" ${default_server_if} | awk '{print $3}'))
[ ${#client_files[@]} -ne ${#ips[@]} ] && echo "/etc/wireguard 中缺少一个或多个客户端接口文件" && exit 1
for ((i=0; i<${#ips[@]}; i++)); do
tmp_ipv4="$(echo ${ips[$i]} | cut -d\/ -f1)"
for ((j=0; j<${#client_files[@]}; j++)); do
if grep -qw "${tmp_ipv4}" "${client_files[$j]}"; then
printf "|${string} |${string} |\n" " ${client_files[$j]}" " ${ips[$i]}"
break
fi
done
done
printf ${line}
}
# 从软件源安装
install_from_repo() {
检查是否已安装
_is_installed
rt=$?
if [ ${rt} -eq 0 ]; then
_red "WireGuard已经安装\n" && exit 0
fi
check_os
if check_kernel_version; then
if [ ${rt} -eq 2 ]; then
install_wg_3
else
_error "WireGuard模块不存在，请检查您的内核"
fi
else
install_wg_1
fi
initialize_config
source "$CONFIG_FILE" # 确保最新的配置被加载
if [ "$ROLE_CHOICE" = "1" ]; then
create_server_if
create_client_config
generate_qr
elif [ "$ROLE_CHOICE" = "2" ]; then
create_client_if
else
_error "无效的 ROLE_CHOICE 值: $ROLE_CHOICE" && exit 1
fi
enable_ip_forward
set_firewall
install_completed
}
# 从源码安装
install_from_source() {
# 检查是否已安装
_is_installed
rt=$?
if [ ${rt} -eq 0 ]; then
_red "WireGuard已经安装\n" && exit 0
fi
check_os
if check_kernel_version; then
if [ ${rt} -eq 2 ]; then
install_wg_4
else
_error "WireGuard模块不存在，请检查您的内核"
fi
else
install_wg_2
fi
initialize_config
source "$cur_dir/wg_default_config.conf" # 确保最新的配置被加载
if [ "$ROLE_CHOICE" = "1" ]; then
create_server_if
create_client_config
generate_qr
elif [ "$ROLE_CHOICE" = "2" ]; then
create_client_if
else
_error "无效的 ROLE_CHOICE 值: $ROLE_CHOICE" && exit 1
fi
enable_ip_forward
set_firewall
install_completed
}
# 从源码升级
update_from_source() {
if check_version > /dev/null 2>&1; then
restart_flg=0
get_latest_module_ver
wg_ver="$(echo ${wireguard_ver} | grep -oE '[0-9.]+')"
_info "wireguard-dkms 版本: $(_green ${installed_wg_ver})"
_info "wireguard-dkms 最新版本: $(_green ${wg_ver})"
if check_kernel_version; then
_info "wireguard-dkms 已合并到 Linux >= 5.6，因此不再需要此兼容模块"
else
if _version_gt "${wg_ver}" "${installed_wg_ver}"; then
_info "开始升级 wireguard-dkms"
install_wg_module
_info "升级 wireguard-dkms 完成"
restart_flg=1
else
_info "wireguard-dkms 没有可用的更新"
fi
fi
get_latest_tools_ver
wg_tools_ver="$(echo ${wireguard_tools_ver} | grep -oE '[0-9.]+')"
_info "wireguard-tools 版本: $(_green ${installed_wg_tools_ver})"
_info "wireguard-tools 最新版本: $(_green ${wg_tools_ver})"
if _version_gt "${wg_tools_ver}" "${installed_wg_tools_ver}"; then
_info "开始升级 wireguard-tools"
install_wg_tools
_info "升级 wireguard-tools 完成"
restart_flg=1
else
_info "wireguard-tools 没有可用的更新"
fi
if [ ${restart_flg} -eq 1 ]; then