routesync

route-sync

@@ -0,0 +1,72 @@
+#!/bin/bash
+set -euo pipefail
+MAIN_TABLE="main"
+RT_TABLES_FILE="/etc/iproute2/rt_tables"
+
+check_root() {
+    if [ $EUID -ne 0 ]; then
+        echo "错误：操作路由表需要root权限，请使用sudo运行脚本！"
+        exit 1
+    fi
+}
+get_custom_tables() {
+    grep -vE '^#|^$' "${RT_TABLES_FILE}" | awk '{print $1}' | \
+    grep -E '^[0-9]+$' | grep -v "^${MAIN_TABLE}$" | sort -n | uniq | tr '\n' ' ' | sed 's/ $//'
+}
+
+sync_ipv4_routes() {
+    local custom_tables="$1"
+    local ipv4_routes
+    ipv4_routes=$(ip -4 route show table "${MAIN_TABLE}" proto kernel scope link)
+    local ipv4_count=$(echo "${ipv4_routes}" | grep -c .)
+
+    if [ ${ipv4_count} -gt 0 ]; then
+        echo "${ipv4_routes}" | while read -r route; do
+            [ -z "${route}" ] && continue
+            for table in ${custom_tables}; do
+                ip -4 route replace ${route} table ${table} >/dev/null 2>&1
+            done
+            #echo "${route} -->  ${custom_tables}"
+        done
+        echo "IPv4同步完成,共${ipv4_count}条"
+    else
+        echo "IPv4无直连路由"
+    fi
+}
+
+sync_ipv6_routes() {
+
+    local custom_tables="$1"
+    local ipv6_routes
+    ipv6_routes=$(ip -6 route show table "${MAIN_TABLE}" proto kernel metric 256)
+    local ipv6_count=$(echo "${ipv6_routes}" | grep -c .)
+
+    if [ ${ipv6_count} -gt 0 ]; then
+        echo "${ipv6_routes}" | while read -r route; do
+            [ -z "${route}" ] && continue
+            for table in ${custom_tables}; do
+                ip -6 route replace ${route} table ${table} >/dev/null 2>&1
+            done
+            #echo "${route} -->  ${custom_tables}"
+        done
+        echo "IPv6同步完成,共${ipv6_count}条"
+    else
+        echo "IPv6无直连路由可同步"
+    fi
+}
+
+main() {
+    check_root
+    local CUSTOM_TABLES=$(get_custom_tables)
+    if [ -z "${CUSTOM_TABLES}" ]; then
+        echo "提示：${RT_TABLES_FILE}中无自定义路由表（已排除254主表），退出执行"
+        exit 0
+    fi
+    echo "获取到路由表：${CUSTOM_TABLES}"
+    sync_ipv4_routes "${CUSTOM_TABLES}"
+    sync_ipv6_routes "${CUSTOM_TABLES}"
+
+    echo "所有路由同步完成！"
+}
+
+main