530 lines
14 KiB
Bash
530 lines
14 KiB
Bash
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#!/usr/bin/env bash
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#
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# 默认出站源地址管理器 Pro
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# 功能：智能管理服务器多 IP 出站策略
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# 作者：顶尖定制版
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# 版本：v2.0
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#
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set -euo pipefail
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# ==================== 配置 ====================
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STATE_DIR="/var/lib/default-src-manager"
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STATE_FILE="$STATE_DIR/config.json"
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BACKUP_DIR="$STATE_DIR/backups"
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LOG_FILE="$STATE_DIR/manager.log"
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SERVICE_NAME="default-src-manager.service"
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SERVICE_FILE="/etc/systemd/system/$SERVICE_NAME"
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APPLY_SCRIPT="/usr/local/sbin/default-src-apply"
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# ==================== 颜色 ====================
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if [[ -t 1 ]]; then
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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CYAN='\033[0;36m'
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BOLD='\033[1m'
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DIM='\033[2m'
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RESET='\033[0m'
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else
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RED='' GREEN='' YELLOW='' BLUE='' CYAN='' BOLD='' DIM='' RESET=''
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fi
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# ==================== 工具函数 ====================
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log() {
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local level="$1"
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shift
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local msg="$*"
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local timestamp
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timestamp="$(date '+%Y-%m-%d %H:%M:%S')"
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echo "[$timestamp] [$level] $msg" >> "$LOG_FILE"
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}
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info() {
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echo -e "${CYAN}[INFO]${RESET} $*"
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log "INFO" "$*"
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}
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success() {
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echo -e "${GREEN}[OK]${RESET} $*"
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log "OK" "$*"
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}
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warn() {
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echo -e "${YELLOW}[WARN]${RESET} $*"
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log "WARN" "$*"
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}
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error() {
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echo -e "${RED}[ERROR]${RESET} $*" >&2
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log "ERROR" "$*"
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}
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die() {
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error "$*"
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exit 1
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}
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section() {
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echo
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echo -e "${BOLD}${BLUE}━━━━ $* ━━━━${RESET}"
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echo
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}
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kv() {
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printf " ${DIM}%-18s${RESET} %s\n" "$1:" "$2"
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}
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check_root() {
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[[ $EUID -eq 0 ]] || die "需要 root 权限运行"
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}
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check_deps() {
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local missing=()
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for cmd in ip jq curl ping systemctl; do
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command -v "$cmd" >/dev/null 2>&1 || missing+=("$cmd")
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done
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if [[ ${#missing[@]} -gt 0 ]]; then
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die "缺少依赖: ${missing[*]}"
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fi
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}
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init_dirs() {
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mkdir -p "$STATE_DIR" "$BACKUP_DIR"
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touch "$LOG_FILE"
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}
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# ==================== IP 工具 ====================
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is_private_ipv4() {
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local ip="$1"
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[[ "$ip" =~ ^10\. ]] && return 0
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[[ "$ip" =~ ^192\.168\. ]] && return 0
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[[ "$ip" =~ ^172\.(1[6-9]|2[0-9]|3[0-1])\. ]] && return 0
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return 1
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}
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get_ip_score() {
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local ip="$1"
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# 优先级：172.16-31 > 10 > 192.168
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if [[ "$ip" =~ ^172\.(1[6-9]|2[0-9]|3[0-1])\. ]]; then
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echo 300
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elif [[ "$ip" =~ ^10\. ]]; then
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echo 200
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elif [[ "$ip" =~ ^192\.168\. ]]; then
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echo 100
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else
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echo 0
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fi
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}
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# ==================== 环境检测 ====================
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detect_environment() {
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info "正在检测网络环境..."
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local iface gw public_ips=() private_ips=()
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# 检测默认网卡和网关
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iface="$(ip -4 route show default | awk 'NR==1{print $5}')"
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gw="$(ip -4 route show default | awk 'NR==1{print $3}')"
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[[ -n "$iface" ]] || die "未找到默认网卡"
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[[ -n "$gw" ]] || die "未找到默认网关"
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# 收集所有 IP
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while IFS= read -r line; do
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local ip cidr
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cidr="$(echo "$line" | awk '{print $4}')"
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ip="${cidr%/*}"
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if is_private_ipv4 "$ip"; then
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private_ips+=("$ip")
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else
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public_ips+=("$ip")
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fi
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done < <(ip -o -4 addr show dev "$iface" scope global 2>/dev/null)
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[[ ${#public_ips[@]} -gt 0 ]] || die "未找到公网 IP"
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[[ ${#private_ips[@]} -gt 0 ]] || die "未找到内网 IP"
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# 选择最优内网 IP（优先 172.16-31）
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local best_private="${private_ips[0]}"
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local best_score=0
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for ip in "${private_ips[@]}"; do
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local score
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score="$(get_ip_score "$ip")"
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if [[ $score -gt $best_score ]]; then
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best_score=$score
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best_private="$ip"
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fi
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done
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# 保存配置
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jq -n \
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--arg iface "$iface" \
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--arg gw "$gw" \
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--arg public "${public_ips[0]}" \
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--arg private "$best_private" \
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'{
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interface: $iface,
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gateway: $gw,
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public_ip: $public,
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private_ip: $private,
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detected_at: (now | strftime("%Y-%m-%d %H:%M:%S"))
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}' > "$STATE_FILE"
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success "环境检测完成"
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kv "网卡" "$iface"
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kv "网关" "$gw"
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kv "公网 IP" "${public_ips[0]}"
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kv "内网 IP" "$best_private"
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if [[ ${#private_ips[@]} -gt 1 ]]; then
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info "检测到多个内网 IP，已自动选择优先级最高的"
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fi
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}
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load_config() {
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[[ -f "$STATE_FILE" ]] || die "配置文件不存在，请先运行检测"
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IFACE="$(jq -r '.interface' "$STATE_FILE")"
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GATEWAY="$(jq -r '.gateway' "$STATE_FILE")"
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PUBLIC_IP="$(jq -r '.public_ip' "$STATE_FILE")"
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PRIVATE_IP="$(jq -r '.private_ip' "$STATE_FILE")"
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}
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# ==================== 策略应用 ====================
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backup_routes() {
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local backup_file="$BACKUP_DIR/routes-$(date +%Y%m%d-%H%M%S).txt"
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{
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echo "=== Default Route ==="
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ip route show default
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echo
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echo "=== Policy Rules ==="
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ip rule show
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echo
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echo "=== Table 100 ==="
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ip route show table 100 2>/dev/null || echo "empty"
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echo
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echo "=== Table 200 ==="
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ip route show table 200 2>/dev/null || echo "empty"
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} > "$backup_file"
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info "已备份当前路由配置到 $backup_file"
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}
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clean_policy() {
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info "清理现有策略..."
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ip rule del pref 100 2>/dev/null || true
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ip rule del pref 110 2>/dev/null || true
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ip route flush table 100 2>/dev/null || true
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ip route flush table 200 2>/dev/null || true
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ip route flush cache 2>/dev/null || true
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}
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apply_private_default() {
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load_config
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backup_routes
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section "应用内网 IP 默认出站"
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info "配置主路由表..."
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ip route replace default via "$GATEWAY" dev "$IFACE" src "$PRIVATE_IP"
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info "配置策略路由表..."
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clean_policy
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# 表 100: 内网 IP 源
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ip route replace default via "$GATEWAY" dev "$IFACE" src "$PRIVATE_IP" table 100
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ip rule add pref 100 from "$PRIVATE_IP/32" table 100
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# 表 200: 公网 IP 源
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ip route replace default via "$GATEWAY" dev "$IFACE" src "$PUBLIC_IP" table 200
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ip rule add pref 110 from "$PUBLIC_IP/32" table 200
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ip route flush cache 2>/dev/null || true
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success "策略应用完成"
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verify_routes
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}
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rollback_public_default() {
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load_config
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backup_routes
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section "恢复公网 IP 默认出站"
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clean_policy
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ip route replace default via "$GATEWAY" dev "$IFACE" src "$PUBLIC_IP"
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ip route flush cache 2>/dev/null || true
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success "已恢复为公网 IP 默认出站"
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verify_routes
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}
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# ==================== 验证测试 ====================
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verify_routes() {
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echo
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info "当前路由状态："
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echo
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echo " 主默认路由："
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ip route show default | sed 's/^/ /'
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echo
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echo " 策略规则："
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ip rule show | grep -E "100|110" | sed 's/^/ /' || echo " (无)"
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}
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test_connectivity() {
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load_config
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section "连通性测试"
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# 测试 1: 默认路由选路
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info "测试默认新连接选路..."
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ip route get 1.1.1.1 | sed 's/^/ /'
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echo
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# 测试 2: 内网 IP 出站
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info "测试内网 IP 出站..."
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if ping -I "$PRIVATE_IP" -c 2 -W 3 1.1.1.1 >/dev/null 2>&1; then
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success "内网 IP 出站正常"
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else
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warn "内网 IP 出站失败"
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fi
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# 测试 3: 公网 IP 查询
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info "查询实际出口 IP..."
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local exit_ip
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exit_ip="$(curl -4 --interface "$PRIVATE_IP" --connect-timeout 5 --max-time 10 -s https://api.ipify.org 2>/dev/null || echo "查询失败")"
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kv "出口 IP" "$exit_ip"
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# 测试 4: DNS 解析
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info "测试 DNS 解析..."
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if host -W 3 google.com >/dev/null 2>&1; then
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success "DNS 解析正常"
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else
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warn "DNS 解析异常"
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fi
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}
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# ==================== 开机自启 ====================
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install_service() {
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load_config
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section "安装开机自启"
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# 创建应用脚本
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cat > "$APPLY_SCRIPT" <<'EOF'
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#!/usr/bin/env bash
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set -euo pipefail
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STATE_FILE="/var/lib/default-src-manager/config.json"
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[[ -f "$STATE_FILE" ]] || exit 1
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IFACE="$(jq -r '.interface' "$STATE_FILE")"
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GATEWAY="$(jq -r '.gateway' "$STATE_FILE")"
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PUBLIC_IP="$(jq -r '.public_ip' "$STATE_FILE")"
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PRIVATE_IP="$(jq -r '.private_ip' "$STATE_FILE")"
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# 清理
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ip rule del pref 100 2>/dev/null || true
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ip rule del pref 110 2>/dev/null || true
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ip route flush table 100 2>/dev/null || true
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ip route flush table 200 2>/dev/null || true
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# 应用
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ip route replace default via "$GATEWAY" dev "$IFACE" src "$PRIVATE_IP"
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ip route replace default via "$GATEWAY" dev "$IFACE" src "$PRIVATE_IP" table 100
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ip route replace default via "$GATEWAY" dev "$IFACE" src "$PUBLIC_IP" table 200
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ip rule add pref 100 from "$PRIVATE_IP/32" table 100
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ip rule add pref 110 from "$PUBLIC_IP/32" table 200
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ip route flush cache 2>/dev/null || true
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EOF
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chmod +x "$APPLY_SCRIPT"
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# 创建 systemd 服务
|
|||
|
|
cat > "$SERVICE_FILE" <<EOF
|
|||
|
|
[Unit]
|
|||
|
|
Description=Default Source IP Manager
|
|||
|
|
After=network-online.target
|
|||
|
|
Wants=network-online.target
|
|||
|
|
|
|||
|
|
[Service]
|
|||
|
|
Type=oneshot
|
|||
|
|
ExecStart=$APPLY_SCRIPT
|
|||
|
|
RemainAfterExit=yes
|
|||
|
|
|
|||
|
|
[Install]
|
|||
|
|
WantedBy=multi-user.target
|
|||
|
|
EOF
|
|||
|
|
|
|||
|
|
systemctl daemon-reload
|
|||
|
|
systemctl enable --now "$SERVICE_NAME"
|
|||
|
|
|
|||
|
|
success "开机自启已安装"
|
|||
|
|
systemctl status "$SERVICE_NAME" --no-pager || true
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
remove_service() {
|
|||
|
|
section "移除开机自启"
|
|||
|
|
|
|||
|
|
systemctl disable --now "$SERVICE_NAME" 2>/dev/null || true
|
|||
|
|
rm -f "$SERVICE_FILE" "$APPLY_SCRIPT"
|
|||
|
|
systemctl daemon-reload
|
|||
|
|
|
|||
|
|
success "开机自启已移除"
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
# ==================== 状态显示 ====================
|
|||
|
|
|
|||
|
|
show_status() {
|
|||
|
|
if [[ ! -f "$STATE_FILE" ]]; then
|
|||
|
|
warn "尚未检测环境，请先运行选项 1"
|
|||
|
|
return
|
|||
|
|
fi
|
|||
|
|
|
|||
|
|
load_config
|
|||
|
|
|
|||
|
|
section "当前状态"
|
|||
|
|
|
|||
|
|
kv "网卡" "$IFACE"
|
|||
|
|
kv "网关" "$GATEWAY"
|
|||
|
|
kv "公网 IP" "$PUBLIC_IP"
|
|||
|
|
kv "内网 IP" "$PRIVATE_IP"
|
|||
|
|
|
|||
|
|
local detected_at
|
|||
|
|
detected_at="$(jq -r '.detected_at' "$STATE_FILE")"
|
|||
|
|
kv "检测时间" "$detected_at"
|
|||
|
|
|
|||
|
|
echo
|
|||
|
|
info "当前默认路由："
|
|||
|
|
ip route show default | sed 's/^/ /'
|
|||
|
|
|
|||
|
|
if ip route show default | grep -q "src $PRIVATE_IP"; then
|
|||
|
|
echo
|
|||
|
|
success "当前模式：内网 IP 默认出站"
|
|||
|
|
elif ip route show default | grep -q "src $PUBLIC_IP"; then
|
|||
|
|
echo
|
|||
|
|
info "当前模式：公网 IP 默认出站"
|
|||
|
|
else
|
|||
|
|
echo
|
|||
|
|
warn "当前模式：未识别"
|
|||
|
|
fi
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
# ==================== 菜单 ====================
|
|||
|
|
|
|||
|
|
show_menu() {
|
|||
|
|
clear
|
|||
|
|
echo -e "${BOLD}${CYAN}"
|
|||
|
|
echo "╔════════════════════════════════════════════╗"
|
|||
|
|
echo "║ 默认出站源地址管理器 Pro v2.0 ║"
|
|||
|
|
echo "╚════════════════════════════════════════════╝"
|
|||
|
|
echo -e "${RESET}"
|
|||
|
|
|
|||
|
|
show_status 2>/dev/null || echo
|
|||
|
|
|
|||
|
|
echo
|
|||
|
|
echo -e "${BOLD}功能菜单${RESET}"
|
|||
|
|
echo
|
|||
|
|
echo " ${GREEN}1${RESET}) 检测网络环境"
|
|||
|
|
echo " ${GREEN}2${RESET}) 应用内网 IP 默认出站"
|
|||
|
|
echo " ${GREEN}3${RESET}) 恢复公网 IP 默认出站"
|
|||
|
|
echo " ${GREEN}4${RESET}) 测试连通性"
|
|||
|
|
echo " ${GREEN}5${RESET}) 查看详细状态"
|
|||
|
|
echo " ${GREEN}6${RESET}) 安装开机自启"
|
|||
|
|
echo " ${GREEN}7${RESET}) 移除开机自启"
|
|||
|
|
echo " ${GREEN}8${RESET}) 清理策略规则"
|
|||
|
|
echo " ${GREEN}9${RESET}) 查看操作日志"
|
|||
|
|
echo " ${RED}0${RESET}) 退出"
|
|||
|
|
echo
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
# ==================== 主函数 ====================
|
|||
|
|
|
|||
|
|
main() {
|
|||
|
|
check_root
|
|||
|
|
check_deps
|
|||
|
|
init_dirs
|
|||
|
|
|
|||
|
|
while true; do
|
|||
|
|
show_menu
|
|||
|
|
read -rp "请选择 [0-9]: " choice
|
|||
|
|
echo
|
|||
|
|
|
|||
|
|
case "$choice" in
|
|||
|
|
1)
|
|||
|
|
detect_environment
|
|||
|
|
read -rp "按回车继续..."
|
|||
|
|
;;
|
|||
|
|
2)
|
|||
|
|
apply_private_default
|
|||
|
|
read -rp "按回车继续..."
|
|||
|
|
;;
|
|||
|
|
3)
|
|||
|
|
rollback_public_default
|
|||
|
|
read -rp "按回车继续..."
|
|||
|
|
;;
|
|||
|
|
4)
|
|||
|
|
test_connectivity
|
|||
|
|
read -rp "按回车继续..."
|
|||
|
|
;;
|
|||
|
|
5)
|
|||
|
|
section "详细路由状态"
|
|||
|
|
echo "主路由表："
|
|||
|
|
ip route show | sed 's/^/ /'
|
|||
|
|
echo
|
|||
|
|
echo "策略规则："
|
|||
|
|
ip rule show | sed 's/^/ /'
|
|||
|
|
echo
|
|||
|
|
echo "表 100（内网 IP 源）："
|
|||
|
|
ip route show table 100 2>/dev/null | sed 's/^/ /' || echo " (空)"
|
|||
|
|
echo
|
|||
|
|
echo "表 200（公网 IP 源）："
|
|||
|
|
ip route show table 200 2>/dev/null | sed 's/^/ /' || echo " (空)"
|
|||
|
|
read -rp "按回车继续..."
|
|||
|
|
;;
|
|||
|
|
6)
|
|||
|
|
install_service
|
|||
|
|
read -rp "按回车继续..."
|
|||
|
|
;;
|
|||
|
|
7)
|
|||
|
|
remove_service
|
|||
|
|
read -rp "按回车继续..."
|
|||
|
|
;;
|
|||
|
|
8)
|
|||
|
|
clean_policy
|
|||
|
|
success "策略规则已清理"
|
|||
|
|
read -rp "按回车继续..."
|
|||
|
|
;;
|
|||
|
|
9)
|
|||
|
|
section "最近 20 条日志"
|
|||
|
|
tail -20 "$LOG_FILE" 2>/dev/null || echo "日志为空"
|
|||
|
|
read -rp "按回车继续..."
|
|||
|
|
;;
|
|||
|
|
0)
|
|||
|
|
echo "再见！"
|
|||
|
|
exit 0
|
|||
|
|
;;
|
|||
|
|
*)
|
|||
|
|
warn "无效选项"
|
|||
|
|
sleep 1
|
|||
|
|
;;
|
|||
|
|
esac
|
|||
|
|
done
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
main "$@"
|