shadowsocks-libev: rewrite ss-rules
- New UCI options ifnames, dst_default - UCI options src_ips_xxx now accept cidr as their values - Export ipset names as part of the interface so that it can be depended on and used by other programs - Bypass only remote servers used ss-redir instances, so that it's possible to let other servers to go through existing re-redir instances Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
This commit is contained in:
Yousong Zhou
parent
b1cd3a955a
commit
df395767d3
4 changed files with 262 additions and 283 deletions
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@ -14,7 +14,7 @@ include $(TOPDIR)/rules.mk
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#
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PKG_NAME:=shadowsocks-libev
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PKG_VERSION:=3.0.8
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PKG_RELEASE:=6
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PKG_RELEASE:=7
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PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
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PKG_SOURCE_URL:=https://github.com/shadowsocks/shadowsocks-libev/releases/download/v$(PKG_VERSION)
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@ -39,8 +39,9 @@ We can have multiple instances of component and `server` sections. The relation
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redir_tcp name of ss_redir section with mode tcp_only or tcp_and_udp
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redir_udp name of ss_redir section with mode udp_only or tcp_and_udp
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ifnames only apply rules on packets from these ifnames
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--- incoming packets having source address in
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--- for incoming packets having source address in
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src_ips_bypass will bypass the redir chain
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src_ips_forward will always go through the redir chain
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@ -50,10 +51,6 @@ We can have multiple instances of component and `server` sections. The relation
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src_default bypass, forward, [checkdst]
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--- for local out tcp packets, the default action can be specified with
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local_default [bypass], forward, checkdst
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--- if the previous check result is checkdst,
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--- then packets having destination address in
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@ -62,6 +59,18 @@ We can have multiple instances of component and `server` sections. The relation
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dst_ips_forward_file
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dst_ips_forward will go through the redir chain
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--- otherwise, the default action can be specified with
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dst_default [bypass], forward
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--- for local out tcp packets, the default action can be specified with
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local_default [bypass], forward, checkdst
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ss-rules uses kernel ipset mechanism for storing addresses/networks. Those ipsets are also part of the API and can be populated by other programs, e.g. dnsmasq with builtin ipset support. For more details please read output of `ss-rules --help`
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Note also that `src_ips_xx` and `dst_ips_xx` actually also accepts cidr network representation. Names are retained for backward compatibility coniderations
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## notes and faq
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Useful paths and commands for debugging
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@ -107,7 +107,7 @@ ss_xxx() {
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[ -x "$bin" ] || return
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eval "$("validate_${cfgtype}_section" "$cfg" ss_validate_mklocal)"
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"validate_${cfgtype}_section" "$cfg"
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"validate_${cfgtype}_section" "$cfg" || return 1
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[ "$disabled" = 0 ] || return
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if ss_mkjson \
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@ -127,21 +127,17 @@ ss_xxx() {
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}
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ss_rules_cb() {
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local cfgserver
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local server
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local cfgserver server
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[ "$cfgtype" != ss_server ] || return
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config_get cfgserver "$cfg" server
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config_get server "$cfgserver" server
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ss_rules_servers="$ss_rules_servers $server"
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if [ "$cfgtype" = ss_redir ]; then
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config_get cfgserver "$cfg" server
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config_get server "$cfgserver" server
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ss_redir_servers="$ss_redir_servers $server"
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if [ "$mode" = tcp_only -o "$mode" = "tcp_and_udp" ]; then
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eval "ss_rules_redir_tcp_$cfg=$local_port"
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fi
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if [ "$mode" = udp_only -o "$mode" = "tcp_and_udp" ]; then
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eval "ss_rules_redir_udp_$cfg=$local_port"
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eval "ss_rules_redir_server_udp_$cfg=$server"
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fi
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fi
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}
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@ -150,48 +146,37 @@ ss_rules() {
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local cfg="ss_rules"
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local bin="$ss_bindir/ss-rules"
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local cfgtype
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local args local_port_tcp local_port_udp server_udp
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local i a_args d_args
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local local_port_tcp local_port_udp
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[ -x "$bin" ] || return 1
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config_get cfgtype "$cfg" TYPE
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[ "$cfgtype" = ss_rules ] || return 1
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eval "$(validate_ss_rules_section "$cfg" ss_validate_mklocal)"
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validate_ss_rules_section "$cfg"
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validate_ss_rules_section "$cfg" || return 1
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[ "$disabled" = 0 ] || return 1
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eval local_port_tcp="\$ss_rules_redir_tcp_$redir_tcp"
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eval local_port_udp="\$ss_rules_redir_udp_$redir_udp"
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eval server_udp="\$ss_rules_redir_server_udp_$redir_udp"
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[ -z "$local_port_udp" ] || args="$args -U"
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case "$local_default" in
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forward) args="$args -O" ;;
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checkdst) args="$args -o" ;;
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esac
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case "$src_default" in
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bypass) d_args=RETURN ;;
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forward) d_args=SS_SPEC_WAN_FW ;;
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checkdst) d_args=SS_SPEC_WAN_AC ;;
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esac
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ss_rules_servers="$(echo "$ss_rules_servers" | tr ' ' '\n' | sort -u)"
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for i in $src_ips_bypass; do a_args="b,$i $a_args"; done
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for i in $src_ips_forward; do a_args="g,$i $a_args"; done
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for i in $src_ips_checkdst; do a_args="n,$i $a_args"; done
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[ -n "$local_port_tcp" -o -n "$local_port_udp" ] || return 1
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ss_redir_servers="$(echo "$ss_redir_servers" | tr ' ' '\n' | sort -u)"
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"$bin" \
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-s "$ss_rules_servers" \
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-s "$ss_redir_servers" \
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-l "$local_port_tcp" \
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-S "$server_udp" \
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-L "$local_port_udp" \
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-B "$dst_ips_bypass_file" \
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-W "$dst_ips_forward_file" \
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-b "$dst_ips_bypass" \
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-w "$dst_ips_forward" \
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-e "$ipt_args" \
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-a "$a_args" \
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-d "$d_args" \
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$args \
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--src-default "$src_default" \
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--dst-default "$dst_default" \
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--local-default "$local_default" \
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--dst-bypass-file "$dst_ips_bypass_file" \
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--dst-forward-file "$dst_ips_forward_file" \
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--dst-bypass "$dst_ips_bypass" \
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--dst-forward "$dst_ips_forward" \
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--src-bypass "$src_ips_bypass" \
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--src-forward "$src_ips_forward" \
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--src-checkdst "$src_ips_checkdst" \
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--ifnames "$ifnames" \
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--ipt-extra "$ipt_args" \
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|| "$bin" -f
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}
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@ -299,15 +284,17 @@ validate_ss_rules_section() {
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'disabled:bool:0' \
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'redir_tcp:uci("shadowsocks-libev", "@ss_redir")' \
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'redir_udp:uci("shadowsocks-libev", "@ss_redir")' \
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'src_ips_bypass:list(ipaddr)' \
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'src_ips_forward:list(ipaddr)' \
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'src_ips_checkdst:list(ipaddr)' \
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'src_ips_bypass:list(or(ip4addr,cidr4))' \
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'src_ips_forward:list(or(ip4addr,cidr4))' \
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'src_ips_checkdst:list(or(ip4addr,cidr4))' \
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'dst_ips_bypass_file:file' \
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'dst_ips_bypass:list(ipaddr)' \
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'dst_ips_bypass:list(or(ip4addr,cidr4))' \
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'dst_ips_forward_file:file' \
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'dst_ips_forward:list(ipaddr)' \
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'src_default:or("bypass", "forward", "checkdst")' \
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'local_default:or("bypass", "forward", "checkdst")' \
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'dst_ips_forward:list(or(ip4addr,cidr4))' \
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'src_default:or("bypass", "forward", "checkdst"):checkdst' \
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'dst_default:or("bypass", "forward"):bypass' \
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'local_default:or("bypass", "forward", "checkdst"):bypass' \
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'ifnames:list(maxlength(15))' \
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'ipt_args:string'
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}
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@ -1,260 +1,243 @@
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#!/bin/sh
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#!/bin/sh -e
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#
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# Copyright (C) 2014-2017 Jian Chang <aa65535@live.com>
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# Copyright (C) 2017 Yousong Zhou <yszhou4tech@gmail.com>
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#
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# The design idea was derived from ss-rules by Jian Chang <aa65535@live.com>
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#
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# This is free software, licensed under the GNU General Public License v3.
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# See /LICENSE for more information.
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#
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usage() {
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cat <<-EOF
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Usage: ss-rules [options]
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ss_usage() {
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cat >&2 <<EOF
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Usage: ss-rules [options]
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Valid options are:
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-h, --help Show this help message then exit
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-f, --flush Flush rules, ipset then exit
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-l <port> Local port number of ss-redir with TCP mode
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-L <port> Local port number of ss-redir with UDP mode
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-s <ips> List of ip addresses of remote shadowsocks server
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--ifnames Only apply rules on packets from these ifnames
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--src-bypass <ips|cidr>
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--src-forward <ips|cidr>
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--src-checkdst <ips|cidr>
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--src-default <bypass|forward|checkdst>
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Packets will have their src ip checked in order against
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bypass, forward, checkdst list and will bypass, forward
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through, or continue to have their dst ip checked
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respectively on the first match. Otherwise, --src-default
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decide the default action
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--dst-bypass <ips|cidr>
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--dst-forward <ips|cidr>
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--dst-bypass-file <file>
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--dst-forward-file <file>
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--dst-default <bypass|forward>
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Same as with their --src-xx equivalent
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--local-default <bypass|forward|checkdst>
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Default action for local out TCP traffic
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-s <server_ips> ip address of shadowsocks remote server
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-l <local_port> port number of shadowsocks local server
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-S <server_ips> ip address of shadowsocks remote UDP server
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-L <local_port> port number of shadowsocks local UDP server
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-B <ip_list_file> a file whose content is bypassed ip list
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-b <wan_ips> wan ip of will be bypassed
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-W <ip_list_file> a file whose content is forwarded ip list
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-w <wan_ips> wan ip of will be forwarded
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-I <interface> proxy only for the given interface
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-d <target> the default target of lan access control
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-a <lan_hosts> lan ip of access control, need a prefix to
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define proxy type
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-e <extra_args> extra arguments for iptables
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-o apply the rules to the OUTPUT chain
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-O apply the global rules to the OUTPUT chain
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-u enable udprelay mode, TPROXY is required
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-U enable udprelay mode, using different IP
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and ports for TCP and UDP
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-f flush the rules
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-h show this help message and exit
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The following ipsets will be created by ss-rules. They are also intended to be
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populated by other programs like dnsmasq with ipset support
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ss_rules_src_bypass
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ss_rules_src_forward
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ss_rules_src_checkdst
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ss_rules_dst_bypass
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ss_rules_dst_forward
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EOF
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exit $1
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}
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loger() {
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# 1.alert 2.crit 3.err 4.warn 5.notice 6.info 7.debug
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logger -st ss-rules[$$] -p$1 $2
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o_dst_bypass_="
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0.0.0.0/8
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10.0.0.0/8
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100.64.0.0/10
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127.0.0.0/8
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169.254.0.0/16
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172.16.0.0/12
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192.0.0.0/24
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192.0.2.0/24
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192.31.196.0/24
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192.52.193.0/24
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192.88.99.0/24
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192.168.0.0/16
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192.175.48.0/24
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198.18.0.0/15
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198.51.100.0/24
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203.0.113.0/24
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224.0.0.0/4
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240.0.0.0/4
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255.255.255.255
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"
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o_src_default=bypass
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o_dst_default=bypass
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o_local_default=bypass
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__errmsg() {
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echo "ss-rules: $*" >&2
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}
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flush_rules() {
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iptables-save -c | grep -v "SS_SPEC" | iptables-restore -c
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if command -v ip >/dev/null 2>&1; then
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ip rule del fwmark 1 lookup 100 2>/dev/null
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ip route del local default dev lo table 100 2>/dev/null
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fi
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for setname in $(ipset -n list | grep "ss_spec"); do
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ipset destroy $setname 2>/dev/null
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done
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FWI=$(uci get firewall.shadowsocks.path 2>/dev/null)
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[ -n "$FWI" ] && echo '# firewall include file' >$FWI
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return 0
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}
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ipset_init() {
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ipset -! restore <<-EOF || return 1
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create ss_spec_src_ac hash:ip hashsize 64
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create ss_spec_src_bp hash:ip hashsize 64
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create ss_spec_src_fw hash:ip hashsize 64
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create ss_spec_dst_sp hash:net hashsize 64
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create ss_spec_dst_bp hash:net hashsize 64
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create ss_spec_dst_fw hash:net hashsize 64
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$(gen_lan_host_ipset_entry)
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$(gen_special_purpose_ip | sed -e "s/^/add ss_spec_dst_sp /")
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$(sed -e "s/^/add ss_spec_dst_bp /" ${WAN_BP_LIST:=/dev/null} 2>/dev/null)
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$(for ip in $WAN_BP_IP; do echo "add ss_spec_dst_bp $ip"; done)
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$(sed -e "s/^/add ss_spec_dst_fw /" ${WAN_FW_LIST:=/dev/null} 2>/dev/null)
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$(for ip in $WAN_FW_IP; do echo "add ss_spec_dst_fw $ip"; done)
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EOF
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return 0
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}
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ipt_nat() {
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include_ac_rules nat
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ipt="iptables -t nat"
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$ipt -A SS_SPEC_WAN_FW -p tcp \
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-j REDIRECT --to-ports $local_port || return 1
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if [ -n "$OUTPUT" ]; then
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$ipt -N SS_SPEC_WAN_DG
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$ipt -A SS_SPEC_WAN_DG -m set --match-set ss_spec_dst_sp dst -j RETURN
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$ipt -A SS_SPEC_WAN_DG -p tcp $EXT_ARGS -j $OUTPUT
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$ipt -I OUTPUT 1 -p tcp -j SS_SPEC_WAN_DG
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fi
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return $?
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}
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ipt_mangle() {
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[ -n "$TPROXY" ] || return 0
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if !(lsmod | grep -q TPROXY && command -v ip >/dev/null); then
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loger 4 "TPROXY or ip not found."
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return 0
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fi
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ip rule add fwmark 1 lookup 100
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ip route add local default dev lo table 100
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include_ac_rules mangle
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iptables -t mangle -A SS_SPEC_WAN_FW -p udp \
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-j TPROXY --on-port $LOCAL_PORT --tproxy-mark 0x01/0x01
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return $?
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}
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export_ipt_rules() {
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[ -n "$FWI" ] || return 0
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cat <<-CAT >>$FWI
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iptables-save -c | grep -v "SS_SPEC" | iptables-restore -c
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iptables-restore -n <<-EOF
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$(iptables-save | grep -E "SS_SPEC|^\*|^COMMIT" |\
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sed -e "s/^-A \(OUTPUT\|PREROUTING\)/-I \1 1/")
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EOF
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CAT
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return $?
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}
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gen_lan_host_ipset_entry() {
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for host in $LAN_HOSTS; do
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case "${host:0:1}" in
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n|N)
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echo add ss_spec_src_ac ${host:2}
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;;
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b|B)
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echo add ss_spec_src_bp ${host:2}
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;;
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g|G)
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echo add ss_spec_src_fw ${host:2}
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;;
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ss_rules_parse_args() {
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while [ "$#" -gt 0 ]; do
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case "$1" in
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-h|--help) ss_usage; exit 0;;
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-f|--flush) ss_rules_flush; exit 0;;
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-l) o_redir_tcp_port="$2"; shift 2;;
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-L) o_redir_udp_port="$2"; shift 2;;
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-s) o_remote_servers="$2"; shift 2;;
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--ifnames) o_ifnames="$2"; shift 2;;
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--ipt-extra) o_ipt_extra="$2"; shift 2;;
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--src-default) o_src_default="$2"; shift 2;;
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--dst-default) o_dst_default="$2"; shift 2;;
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--local-default) o_local_default="$2"; shift 2;;
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--src-bypass) o_src_bypass="$2"; shift 2;;
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--src-forward) o_src_forward="$2"; shift 2;;
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--src-checkdst) o_src_checkdst="$2"; shift 2;;
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--dst-bypass) o_dst_bypass="$2"; shift 2;;
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--dst-forward) o_dst_forward="$2"; shift 2;;
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--dst-bypass-file) o_dst_bypass_file="$2"; shift 2;;
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--dst-forward-file) o_dst_forward_file="$2"; shift 2;;
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*) __errmsg "unknown option $1"; return 1;;
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esac
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done
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if [ -z "$o_redir_tcp_port" -a -z "$o_redir_udp_port" ]; then
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__errmsg "Requires at least -l or -L option"
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return 1
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fi
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}
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gen_special_purpose_ip() {
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cat <<-EOF | grep -E "^([0-9]{1,3}\.){3}[0-9]{1,3}"
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0.0.0.0/8
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10.0.0.0/8
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100.64.0.0/10
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127.0.0.0/8
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169.254.0.0/16
|
||||
172.16.0.0/12
|
||||
192.0.0.0/24
|
||||
192.0.2.0/24
|
||||
192.31.196.0/24
|
||||
192.52.193.0/24
|
||||
192.88.99.0/24
|
||||
192.168.0.0/16
|
||||
192.175.48.0/24
|
||||
198.18.0.0/15
|
||||
198.51.100.0/24
|
||||
203.0.113.0/24
|
||||
224.0.0.0/4
|
||||
240.0.0.0/4
|
||||
255.255.255.255
|
||||
$server
|
||||
$SERVER
|
||||
EOF
|
||||
}
|
||||
ss_rules_flush() {
|
||||
local setname
|
||||
|
||||
include_ac_rules() {
|
||||
local protocol=$([ "$1" = "mangle" ] && echo udp || echo tcp)
|
||||
iptables-restore -n <<-EOF
|
||||
*$1
|
||||
:SS_SPEC_LAN_DG - [0:0]
|
||||
:SS_SPEC_LAN_AC - [0:0]
|
||||
:SS_SPEC_WAN_AC - [0:0]
|
||||
:SS_SPEC_WAN_FW - [0:0]
|
||||
-A SS_SPEC_LAN_DG -m set --match-set ss_spec_dst_sp dst -j RETURN
|
||||
-A SS_SPEC_LAN_DG -p $protocol $EXT_ARGS -j SS_SPEC_LAN_AC
|
||||
-A SS_SPEC_LAN_AC -m set --match-set ss_spec_src_bp src -j RETURN
|
||||
-A SS_SPEC_LAN_AC -m set --match-set ss_spec_src_fw src -j SS_SPEC_WAN_FW
|
||||
-A SS_SPEC_LAN_AC -m set --match-set ss_spec_src_ac src -j SS_SPEC_WAN_AC
|
||||
-A SS_SPEC_LAN_AC -j ${LAN_TARGET:=SS_SPEC_WAN_AC}
|
||||
-A SS_SPEC_WAN_AC -m set --match-set ss_spec_dst_fw dst -j SS_SPEC_WAN_FW
|
||||
-A SS_SPEC_WAN_AC -m set --match-set ss_spec_dst_bp dst -j RETURN
|
||||
-A SS_SPEC_WAN_AC -j SS_SPEC_WAN_FW
|
||||
$(gen_prerouting_rules $protocol)
|
||||
COMMIT
|
||||
EOF
|
||||
}
|
||||
|
||||
gen_prerouting_rules() {
|
||||
[ -z "$IFNAMES" ] && echo -I PREROUTING 1 -p $1 -j SS_SPEC_LAN_DG
|
||||
for ifname in $IFNAMES; do
|
||||
echo -I PREROUTING 1 -i $ifname -p $1 -j SS_SPEC_LAN_DG
|
||||
iptables-save --counters | grep -v ss_rules_ | iptables-restore --counters
|
||||
while ip rule del fwmark 1 lookup 100 2>/dev/null; do true; done
|
||||
ip route flush table 100
|
||||
for setname in $(ipset -n list | grep "ss_rules_"); do
|
||||
ipset destroy "$setname" 2>/dev/null || true
|
||||
done
|
||||
}
|
||||
|
||||
while getopts ":s:l:S:L:B:b:W:w:I:d:a:e:oOuUfh" arg; do
|
||||
case "$arg" in
|
||||
s)
|
||||
server=$(for ip in $OPTARG; do echo $ip; done)
|
||||
ss_rules_ipset_init() {
|
||||
ipset --exist restore <<-EOF
|
||||
create ss_rules_src_bypass hash:net hashsize 64
|
||||
create ss_rules_src_forward hash:net hashsize 64
|
||||
create ss_rules_src_checkdst hash:net hashsize 64
|
||||
create ss_rules_dst_bypass hash:net hashsize 64
|
||||
create ss_rules_dst_bypass_ hash:net hashsize 64
|
||||
create ss_rules_dst_forward hash:net hashsize 64
|
||||
$(ss_rules_ipset_mkadd ss_rules_dst_bypass_ "$o_dst_bypass_ $o_remote_servers")
|
||||
$(ss_rules_ipset_mkadd ss_rules_src_bypass "$o_src_bypass")
|
||||
$(ss_rules_ipset_mkadd ss_rules_src_forward "$o_src_forward")
|
||||
$(ss_rules_ipset_mkadd ss_rules_src_checkdst "$o_src_checkdst")
|
||||
$(ss_rules_ipset_mkadd ss_rules_dst_bypass "$o_dst_bypass $(cat "$o_dst_bypass_file" 2>/dev/null)")
|
||||
$(ss_rules_ipset_mkadd ss_rules_dst_forward "$o_dst_forward $(cat "$o_dst_forward_file" 2>/dev/null)")
|
||||
EOF
|
||||
}
|
||||
|
||||
ss_rules_ipset_mkadd() {
|
||||
local setname="$1"; shift
|
||||
local i
|
||||
|
||||
for i in $*; do
|
||||
echo "add $setname $i"
|
||||
done
|
||||
}
|
||||
|
||||
ss_rules_iptchains_init() {
|
||||
ss_rules_iptchains_init_tcp
|
||||
ss_rules_iptchains_init_udp
|
||||
}
|
||||
|
||||
ss_rules_iptchains_init_tcp() {
|
||||
local ipt="iptables -t nat"
|
||||
local local_target
|
||||
local forward_rules
|
||||
local r
|
||||
|
||||
[ -n "$o_redir_tcp_port" ] || return 0
|
||||
|
||||
ss_rules_iptchains_init_ nat tcp
|
||||
|
||||
case "$o_local_default" in
|
||||
checkdst) local_target=ss_rules_dst ;;
|
||||
forward) local_target=ss_rules_forward ;;
|
||||
bypass|*) return 0;;
|
||||
esac
|
||||
|
||||
iptables-restore --noflush <<-EOF
|
||||
*nat
|
||||
:ss_rules_local_out -
|
||||
-I OUTPUT 1 -p tcp -j ss_rules_local_out
|
||||
-A ss_rules_local_out -m set --match-set ss_rules_dst_bypass_ dst -j RETURN
|
||||
-A ss_rules_local_out -p tcp $o_ipt_extra -j $local_target -m comment --comment "local_default: $o_local_default"
|
||||
COMMIT
|
||||
EOF
|
||||
}
|
||||
|
||||
ss_rules_iptchains_init_udp() {
|
||||
[ -n "$o_redir_udp_port" ] || return 0
|
||||
ss_rules_iptchains_init_ mangle udp
|
||||
}
|
||||
|
||||
ss_rules_iptchains_init_() {
|
||||
local table="$1"
|
||||
local proto="$2"
|
||||
local forward_rules
|
||||
local src_default_target dst_default_target
|
||||
|
||||
case "$proto" in
|
||||
tcp)
|
||||
forward_rules="-A ss_rules_forward -p tcp -j REDIRECT --to-ports $o_redir_tcp_port"
|
||||
;;
|
||||
l)
|
||||
local_port=$OPTARG
|
||||
;;
|
||||
S)
|
||||
SERVER=$(for ip in $OPTARG; do echo $ip; done)
|
||||
;;
|
||||
L)
|
||||
LOCAL_PORT=$OPTARG
|
||||
;;
|
||||
B)
|
||||
WAN_BP_LIST=$OPTARG
|
||||
;;
|
||||
b)
|
||||
WAN_BP_IP=$OPTARG
|
||||
;;
|
||||
W)
|
||||
WAN_FW_LIST=$OPTARG
|
||||
;;
|
||||
w)
|
||||
WAN_FW_IP=$OPTARG
|
||||
;;
|
||||
I)
|
||||
IFNAMES=$OPTARG
|
||||
;;
|
||||
d)
|
||||
LAN_TARGET=$OPTARG
|
||||
;;
|
||||
a)
|
||||
LAN_HOSTS=$OPTARG
|
||||
;;
|
||||
e)
|
||||
EXT_ARGS=$OPTARG
|
||||
;;
|
||||
o)
|
||||
OUTPUT=SS_SPEC_WAN_AC
|
||||
;;
|
||||
O)
|
||||
OUTPUT=SS_SPEC_WAN_FW
|
||||
;;
|
||||
u)
|
||||
TPROXY=1
|
||||
;;
|
||||
U)
|
||||
TPROXY=2
|
||||
;;
|
||||
f)
|
||||
flush_rules
|
||||
exit 0
|
||||
;;
|
||||
h)
|
||||
usage 0
|
||||
udp)
|
||||
ip rule add fwmark 1 lookup 100
|
||||
ip route add local default dev lo table 100
|
||||
forward_rules="-A ss_rules_forward -p udp -j TPROXY --on-port "$o_redir_udp_port" --tproxy-mark 0x01/0x01"
|
||||
;;
|
||||
esac
|
||||
done
|
||||
case "$o_src_default" in
|
||||
forward) src_default_target=ss_rules_forward ;;
|
||||
checkdst) src_default_target=ss_rules_dst ;;
|
||||
bypass|*) src_default_target=RETURN ;;
|
||||
esac
|
||||
case "$o_dst_default" in
|
||||
forward) dst_default_target=ss_rules_forward ;;
|
||||
bypass|*) dst_default_target=RETURN ;;
|
||||
esac
|
||||
iptables-restore --noflush <<-EOF
|
||||
*$table
|
||||
:ss_rules_pre_src -
|
||||
:ss_rules_src -
|
||||
:ss_rules_dst -
|
||||
:ss_rules_forward -
|
||||
$(ss_rules_iptchains_mkprerules "$proto")
|
||||
-A ss_rules_pre_src -m set --match-set ss_rules_dst_bypass_ dst -j RETURN
|
||||
-A ss_rules_pre_src -p $proto $o_ipt_extra -j ss_rules_src
|
||||
-A ss_rules_src -m set --match-set ss_rules_src_bypass src -j RETURN
|
||||
-A ss_rules_src -m set --match-set ss_rules_src_forward src -j ss_rules_forward
|
||||
-A ss_rules_src -m set --match-set ss_rules_src_checkdst src -j ss_rules_dst
|
||||
-A ss_rules_src -j $src_default_target -m comment --comment "src_default: $o_src_default"
|
||||
-A ss_rules_dst -m set --match-set ss_rules_dst_bypass dst -j RETURN
|
||||
-A ss_rules_dst -m set --match-set ss_rules_dst_forward dst -j ss_rules_forward
|
||||
-A ss_rules_dst -j $dst_default_target -m comment --comment "dst_default: $o_dst_default"
|
||||
$forward_rules
|
||||
COMMIT
|
||||
EOF
|
||||
}
|
||||
|
||||
[ -z "$server" -o -z "$local_port" ] && usage 2
|
||||
ss_rules_iptchains_mkprerules() {
|
||||
local proto="$1"
|
||||
|
||||
if [ "$TPROXY" = 1 ]; then
|
||||
unset SERVER
|
||||
LOCAL_PORT=$local_port
|
||||
elif [ "$TPROXY" = 2 ]; then
|
||||
: ${SERVER:?"You must assign an ip for the udp relay server."}
|
||||
: ${LOCAL_PORT:?"You must assign a port for the udp relay server."}
|
||||
fi
|
||||
if [ -z "$o_ifnames" ]; then
|
||||
echo "-I PREROUTING 1 -p $proto -j ss_rules_pre_src"
|
||||
else
|
||||
echo "$o_ifnames" \
|
||||
| tr ' ' '\n' \
|
||||
| sed "s/.*/-I PREROUTING 1 -i \\0 -p $proto -j ss_rules_pre_src/"
|
||||
fi
|
||||
}
|
||||
|
||||
flush_rules && ipset_init && ipt_nat && ipt_mangle && export_ipt_rules
|
||||
RET=$?
|
||||
[ "$RET" = 0 ] || loger 3 "Start failed!"
|
||||
exit $RET
|
||||
ss_rules_parse_args "$@"
|
||||
ss_rules_flush
|
||||
ss_rules_ipset_init
|
||||
ss_rules_iptchains_init
|
||||
|
|
|
|||
Loading…
Reference in a new issue