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