407 lines
13 KiB
Bash
407 lines
13 KiB
Bash
#!/bin/bash
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PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
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export PATH
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# ====================================================
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# 系统要求: CentOS 6+、Debian 7+、Ubuntu 14+
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# 描述: Socat 一键安装管理脚本
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# 版本: 3.1
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# ====================================================
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Green="\033[32m"
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Font="\033[0m"
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Blue="\033[34m"
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Red="\033[31m"
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Yellow="\033[33m"
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# 配置文件路径
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CONFIG_FILE="./socat_forwards.conf"
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# 清屏函数
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clear_screen() {
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clear
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}
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# 按键继续函数
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press_any_key() {
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echo
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read -n 1 -s -r -p "按任意键继续..."
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clear_screen
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}
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# 检查是否为root用户
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check_root(){
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if [[ $EUID -ne 0 ]]; then
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echo "错误：此脚本必须以root身份运行！" 1>&2
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exit 1
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fi
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}
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# 检查系统类型
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check_sys(){
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if [[ -f /etc/redhat-release ]]; then
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OS="CentOS"
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elif cat /etc/issue | grep -q -E -i "debian"; then
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OS="Debian"
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elif cat /etc/issue | grep -q -E -i "ubuntu"; then
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OS="Ubuntu"
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elif cat /etc/issue | grep -q -E -i "centos|red hat|redhat"; then
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OS="CentOS"
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else
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echo "不支持的操作系统！"
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exit 1
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fi
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}
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# 获取本机IP（优化版本）
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get_ip(){
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ip=$(ip addr | grep 'inet ' | grep -v 127.0.0.1 | head -n1 | awk '{print $2}' | cut -d'/' -f1)
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if [[ -z "$ip" ]]; then
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ip="未知"
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fi
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}
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# 安装Socat（只在需要时执行）
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install_socat(){
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if [ ! -s /usr/bin/socat ]; then
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echo -e "${Green}正在安装 Socat...${Font}"
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if [ "${OS}" == "CentOS" ]; then
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yum install -y socat
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else
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apt-get -y update
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apt-get install -y socat
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fi
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if [ -s /usr/bin/socat ]; then
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echo -e "${Green}Socat 安装完成！${Font}"
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else
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echo -e "${Red}Socat 安装失败，请检查网络连接和系统设置。${Font}"
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exit 1
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fi
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fi
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}
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# 初始化配置文件
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init_config() {
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if [ ! -f "$CONFIG_FILE" ]; then
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touch "$CONFIG_FILE"
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fi
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}
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# 添加转发到配置文件
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add_to_config() {
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echo "$port1 $socatip $port2" >> "$CONFIG_FILE"
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}
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# 从配置文件中移除转发
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remove_from_config() {
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local listen_port=$1
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sed -i "/^$listen_port /d" "$CONFIG_FILE"
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}
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# 配置Socat
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config_socat(){
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echo -e "${Green}请输入Socat配置信息！${Font}"
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read -p "请输入本地端口: " port1
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read -p "请输入远程端口: " port2
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read -p "请输入远程IP: " socatip
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}
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# 启动Socat
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start_socat(){
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echo -e "${Green}正在配置Socat...${Font}"
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nohup socat TCP4-LISTEN:${port1},reuseaddr,fork,keepalive,nodelay TCP4:${socatip}:${port2},keepalive,nodelay >> ./socat.log 2>&1 &
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# 检查是否成功启动
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sleep 2
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if pgrep -f "socat.*LISTEN:${port1}.*TCP4:${socatip}:${port2}" > /dev/null; then
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echo -e "${Green}Socat配置成功!${Font}"
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echo -e "${Blue}本地端口: ${port1}${Font}"
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echo -e "${Blue}远程端口: ${port2}${Font}"
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echo -e "${Blue}远程IP: ${socatip}${Font}"
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echo -e "${Blue}本地服务器IP: ${ip}${Font}"
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# 添加到配置文件和开机自启
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add_to_config
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add_to_startup
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else
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echo -e "${Red}Socat启动失败，请检查配置和系统设置。${Font}"
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fi
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}
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# 添加到开机自启
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add_to_startup() {
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rc_local="/etc/rc.local"
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if [ ! -f "$rc_local" ]; then
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echo '#!/bin/bash' > "$rc_local"
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fi
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startup_cmd="nohup socat TCP4-LISTEN:${port1},reuseaddr,fork,keepalive,nodelay TCP4:${socatip}:${port2},keepalive,nodelay >> $(pwd)/socat.log 2>&1 &"
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if ! grep -q "$startup_cmd" "$rc_local"; then
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echo "$startup_cmd" >> "$rc_local"
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chmod +x "$rc_local"
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echo -e "${Green}已添加到开机自启动${Font}"
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else
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echo -e "${Yellow}该转发已在开机自启动列表中${Font}"
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fi
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}
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# 显示和删除转发
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view_delete_forward() {
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if [ ! -s "$CONFIG_FILE" ]; then
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echo -e "${Red}当前没有活动的转发。${Font}"
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return
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fi
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echo -e "${Green}当前转发列表:${Font}"
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local i=1
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while read -r line; do
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local listen_port=$(echo $line | awk '{print $1}')
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local remote_ip=$(echo $line | awk '{print $2}')
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local remote_port=$(echo $line | awk '{print $3}')
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echo "$i. $ip:$listen_port --> $remote_ip:$remote_port"
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((i++))
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done < "$CONFIG_FILE"
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read -p "请输入要删除的转发编号（多个编号用空格分隔，直接回车取消）: " numbers
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if [ -n "$numbers" ]; then
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for num in $numbers; do
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if [ $num -ge 1 ] && [ $num -lt $i ]; then
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local line=$(sed -n "${num}p" "$CONFIG_FILE")
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local listen_port=$(echo $line | awk '{print $1}')
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pkill -f "socat.*LISTEN:${listen_port}"
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remove_from_config $listen_port
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remove_from_startup $listen_port
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echo -e "${Green}已删除转发: $ip:$listen_port${Font}"
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else
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echo -e "${Red}无效的编号: $num${Font}"
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fi
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done
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fi
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}
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# 从开机自启动中移除
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remove_from_startup() {
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local listen_port=$1
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rc_local="/etc/rc.local"
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if [ -f "$rc_local" ]; then
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sed -i "/socat.*LISTEN:${listen_port}/d" "$rc_local"
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echo -e "${Green}已从开机自启动中移除端口 ${listen_port} 的转发${Font}"
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fi
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}
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# 强制终止所有Socat进程
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kill_all_socat() {
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echo -e "${Yellow}正在终止所有 Socat 进程...${Font}"
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pkill -9 socat
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sleep 2
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if pgrep -f socat > /dev/null; then
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echo -e "${Red}警告：某些 Socat 进程可能仍在运行。请考虑手动检查。${Font}"
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else
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echo -e "${Green}所有 Socat 进程已成功终止。${Font}"
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fi
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# 清空配置文件
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> "$CONFIG_FILE"
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# 清理开机自启动脚本
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sed -i '/socat TCP4-LISTEN/d' /etc/rc.local
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echo -e "${Green}已从配置和开机自启动中移除所有 Socat 转发${Font}"
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}
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# 开启端口转发加速
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enable_acceleration() {
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echo -e "${Green}正在开启端口转发加速...${Font}"
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# 启用 TCP Fast Open
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echo 3 > /proc/sys/net/ipv4/tcp_fastopen
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# 优化内核参数
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sysctl -w net.ipv4.tcp_congestion_control=bbr
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sysctl -w net.core.default_qdisc=fq
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sysctl -w net.ipv4.tcp_slow_start_after_idle=0
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sysctl -w net.ipv4.tcp_mtu_probing=1
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# 新增优化参数
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sysctl -w net.core.rmem_max=26214400
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sysctl -w net.core.wmem_max=26214400
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sysctl -w net.ipv4.tcp_rmem='4096 87380 26214400'
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sysctl -w net.ipv4.tcp_wmem='4096 16384 26214400'
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sysctl -w net.ipv4.tcp_mem='26214400 26214400 26214400'
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sysctl -w net.core.netdev_max_backlog=2048
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sysctl -w net.ipv4.tcp_max_syn_backlog=2048
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sysctl -w net.ipv4.tcp_tw_reuse=1
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sysctl -w net.ipv4.tcp_fin_timeout=15
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sysctl -w net.ipv4.tcp_keepalive_time=1200
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sysctl -w net.ipv4.tcp_max_tw_buckets=2000000
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sysctl -w net.ipv4.tcp_fastopen=3
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sysctl -w net.ipv4.tcp_mtu_probing=1
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sysctl -w net.ipv4.tcp_syncookies=1
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sysctl -w net.ipv4.tcp_rfc1337=1
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sysctl -w net.ipv4.tcp_sack=1
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sysctl -w net.ipv4.tcp_fack=1
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sysctl -w net.ipv4.tcp_window_scaling=1
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sysctl -w net.ipv4.tcp_adv_win_scale=2
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sysctl -w net.ipv4.tcp_moderate_rcvbuf=1
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sysctl -w net.core.optmem_max=65535
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sysctl -w net.ipv4.tcp_notsent_lowat=16384
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# 持久化设置
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echo "net.ipv4.tcp_fastopen = 3" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_congestion_control = bbr" >> /etc/sysctl.conf
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echo "net.core.default_qdisc = fq" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_slow_start_after_idle = 0" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_mtu_probing = 1" >> /etc/sysctl.conf
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# 添加新增的优化参数到sysctl.conf
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echo "net.core.rmem_max = 26214400" >> /etc/sysctl.conf
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echo "net.core.wmem_max = 26214400" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_rmem = 4096 87380 26214400" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_wmem = 4096 16384 26214400" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_mem = 26214400 26214400 26214400" >> /etc/sysctl.conf
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echo "net.core.netdev_max_backlog = 2048" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_max_syn_backlog = 2048" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_tw_reuse = 1" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_fin_timeout = 15" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_keepalive_time = 1200" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_max_tw_buckets = 2000000" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_fastopen = 3" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_mtu_probing = 1" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_syncookies = 1" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_rfc1337 = 1" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_sack = 1" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_fack = 1" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_window_scaling = 1" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_adv_win_scale = 2" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_moderate_rcvbuf = 1" >> /etc/sysctl.conf
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echo "net.core.optmem_max = 65535" >> /etc/sysctl.conf
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echo "net.ipv4.tcp_notsent_lowat = 16384" >> /etc/sysctl.conf
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sysctl -p
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echo -e "${Green}端口转发加速已开启${Font}"
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}
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# 关闭端口转发加速
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disable_acceleration() {
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echo -e "${Yellow}正在关闭端口转发加速...${Font}"
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# 恢复默认内核参数
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sysctl -w net.ipv4.tcp_fastopen=0
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sysctl -w net.ipv4.tcp_congestion_control=cubic
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sysctl -w net.core.default_qdisc=pfifo_fast
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sysctl -w net.ipv4.tcp_slow_start_after_idle=1
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sysctl -w net.ipv4.tcp_mtu_probing=0
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# 恢复其他参数到默认值
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sysctl -w net.core.wmem_max=212992
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sysctl -w net.ipv4.tcp_rmem='4096 87380 6291456'
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sysctl -w net.ipv4.tcp_wmem='4096 16384 4194304'
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sysctl -w net.ipv4.tcp_mem='378651 504868 757299'
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sysctl -w net.core.netdev_max_backlog=1000
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sysctl -w net.ipv4.tcp_max_syn_backlog=128
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sysctl -w net.ipv4.tcp_tw_reuse=0
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sysctl -w net.ipv4.tcp_fin_timeout=60
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sysctl -w net.ipv4.tcp_keepalive_time=7200
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sysctl -w net.ipv4.tcp_max_tw_buckets=180000
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sysctl -w net.ipv4.tcp_syncookies=1
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sysctl -w net.ipv4.tcp_rfc1337=0
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sysctl -w net.ipv4.tcp_sack=1
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sysctl -w net.ipv4.tcp_fack=1
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sysctl -w net.ipv4.tcp_window_scaling=1
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sysctl -w net.ipv4.tcp_adv_win_scale=1
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sysctl -w net.ipv4.tcp_moderate_rcvbuf=1
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sysctl -w net.core.optmem_max=20480
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sysctl -w net.ipv4.tcp_notsent_lowat=4294967295
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# 从配置文件中移除所有自定义设置
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sed -i '/net.ipv4.tcp_fastopen/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_congestion_control/d' /etc/sysctl.conf
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sed -i '/net.core.default_qdisc/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_slow_start_after_idle/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_mtu_probing/d' /etc/sysctl.conf
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sed -i '/net.core.rmem_max/d' /etc/sysctl.conf
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sed -i '/net.core.wmem_max/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_rmem/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_wmem/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_mem/d' /etc/sysctl.conf
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sed -i '/net.core.netdev_max_backlog/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_max_syn_backlog/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_tw_reuse/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_fin_timeout/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_keepalive_time/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_max_tw_buckets/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_fastopen/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_syncookies/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_rfc1337/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_sack/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_fack/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_window_scaling/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_adv_win_scale/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_moderate_rcvbuf/d' /etc/sysctl.conf
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sed -i '/net.core.optmem_max/d' /etc/sysctl.conf
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sed -i '/net.ipv4.tcp_notsent_lowat/d' /etc/sysctl.conf
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sysctl -p
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echo -e "${Yellow}端口转发加速已关闭${Font}"
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}
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# 显示菜单
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show_menu() {
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echo -e "${Green}========= Socat 管理脚本 ==========${Font}"
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echo "1. 添加新转发"
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echo "2. 查看或删除转发"
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echo "3. 强制终止所有 Socat 进程"
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echo "4. 开启端口转发加速"
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echo "5. 关闭端口转发加速"
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echo "6. 退出脚本"
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echo -e "${Green}=====================================${Font}"
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}
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# 主程序
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main() {
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check_root
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check_sys
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install_socat
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get_ip
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init_config
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clear_screen
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while true; do
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show_menu
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read -p "请输入选项 [1-6]: " choice
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clear_screen
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case $choice in
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1)
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config_socat
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start_socat
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press_any_key
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;;
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2)
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view_delete_forward
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press_any_key
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;;
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3)
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kill_all_socat
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press_any_key
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;;
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4)
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enable_acceleration
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press_any_key
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;;
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5)
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disable_acceleration
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press_any_key
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;;
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6)
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echo -e "${Green}感谢使用,再见!${Font}"
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exit 0
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;;
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*)
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echo -e "${Red}无效选项,请重新选择${Font}"
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press_any_key
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;;
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esac
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done
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}
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# 执行主程序
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main
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