825 lines
28 KiB
Bash
Executable File
825 lines
28 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (C) 2017 openwrt-ssr
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# Copyright (C) 2017 yushi studio <ywb94@qq.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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# Detect firewall version and set appropriate tools
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detect_firewall() {
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if command -v nft >/dev/null 2>&1 && \
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[ -n "$(uci get firewall.@defaults[0].syn_flood 2>/dev/null)" ] && \
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! grep -q "fw3" /etc/init.d/firewall 2>/dev/null; then
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USE_NFT=1
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NFT="nft"
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FWI=$(uci get firewall.shadowsocksr.path 2>/dev/null) # firewall include file
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else
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USE_NFT=0
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IPT="iptables -t nat" # alias of iptables
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FWI=$(uci get firewall.shadowsocksr.path 2>/dev/null) # firewall include file
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fi
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}
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# Initialize firewall detection
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detect_firewall
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TAG="_SS_SPEC_RULE_" # comment tag
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usage() {
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cat <<-EOF
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Usage: ssr-rules [options]
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Valid options are:
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-s <server_ip> ip address of shadowsocksr remote server
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-l <local_port> port number of shadowsocksr local server
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-S <server_ip> ip address of shadowsocksr remote UDP server
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-L <local_port> port number of shadowsocksr local UDP server
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-i <ip_list_file> a file content is bypassed ip list
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-a <lan_ips> lan ip of access control, need a prefix to
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define access control mode
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-b <wan_ips> wan ip of will be bypassed
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-w <wan_ips> wan ip of will be forwarded
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-B <bp_lan_ips> lan ip of will be bypassed proxy
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-p <fp_lan_ips> lan ip of will be global proxy
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-G <gm_lan_ips> lan ip of will be game mode proxy
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-D <proxy_ports> proxy ports
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-F shunt mode
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-N shunt server IP
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-M shunt proxy mode
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-m <Interface> Interface name
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-I <ip_list_file> a file content is bypassed shunt ip list
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-e <extra_options> extra options 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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-g gfwlist mode
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-r router mode
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-c oversea mode
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-z all mode
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-h show this help message and exit
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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 ssr-rules[$$] -p$1 $2
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}
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flush_r() {
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if [ "$USE_NFT" = "1" ]; then
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flush_nftables
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else
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flush_iptables_legacy
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fi
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return 0
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}
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flush_nftables() {
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# Remove nftables rules and sets
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$NFT delete table inet ss_spec 2>/dev/null
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$NFT delete table ip ss_spec 2>/dev/null
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$NFT delete table ip ss_spec_mangle 2>/dev/null
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# Clean up routing rules
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ip rule del fwmark 0x01/0x01 table 100 2>/dev/null
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ip route del local 0.0.0.0/0 dev lo table 100 2>/dev/null
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[ -n "$FWI" ] && echo '#!/bin/sh' >"$FWI"
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return 0
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}
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flush_iptables_legacy() {
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flush_iptables() {
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local ipt="iptables -t $1"
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local DAT=$(iptables-save -t $1)
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eval $(echo "$DAT" | grep "$TAG" | sed -e 's/^-A/$ipt -D/' -e 's/$/;/')
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for chain in $(echo "$DAT" | awk '/^:SS_SPEC/{print $1}'); do
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$ipt -F ${chain:1} 2>/dev/null && $ipt -X ${chain:1}
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done
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}
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flush_iptables nat
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flush_iptables mangle
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ip rule del fwmark 0x01/0x01 table 100 2>/dev/null
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ip route del local 0.0.0.0/0 dev lo table 100 2>/dev/null
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ipset -X ss_spec_lan_ac 2>/dev/null
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ipset -X ss_spec_wan_ac 2>/dev/null
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ipset -X ssr_gen_router 2>/dev/null
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ipset -X fplan 2>/dev/null
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ipset -X bplan 2>/dev/null
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ipset -X gmlan 2>/dev/null
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ipset -X oversea 2>/dev/null
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ipset -X whitelist 2>/dev/null
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ipset -X blacklist 2>/dev/null
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ipset -X netflix 2>/dev/null
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[ -n "$FWI" ] && echo '#!/bin/sh' >$FWI
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return 0
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}
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ipset_r() {
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if [ "$USE_NFT" = "1" ]; then
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ipset_nft
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else
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ipset_iptables
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fi
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return $?
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}
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ipset_nft() {
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[ -f "$IGNORE_LIST" ] && /usr/share/shadowsocksr/chinaipset.sh "$IGNORE_LIST"
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# Create nftables table and sets
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$NFT add table inet ss_spec 2>/dev/null
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$NFT add set inet ss_spec ss_spec_wan_ac '{ type ipv4_addr; flags interval; }' 2>/dev/null
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$NFT add set inet ss_spec gmlan '{ type ipv4_addr; flags interval; }' 2>/dev/null
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$NFT add set inet ss_spec fplan '{ type ipv4_addr; flags interval; }' 2>/dev/null
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$NFT add set inet ss_spec bplan '{ type ipv4_addr; flags interval; }' 2>/dev/null
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$NFT add set inet ss_spec whitelist '{ type ipv4_addr; flags interval; }' 2>/dev/null
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$NFT add set inet ss_spec blacklist '{ type ipv4_addr; flags interval; }' 2>/dev/null
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$NFT add set inet ss_spec netflix '{ type ipv4_addr; flags interval; }' 2>/dev/null
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# Add IP addresses to sets
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for ip in $LAN_GM_IP; do
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$NFT add element inet ss_spec gmlan "{ $ip }"
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done
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for ip in $LAN_FP_IP; do
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$NFT add element inet ss_spec fplan "{ $ip }"
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done
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for ip in $LAN_BP_IP; do
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$NFT add element inet ss_spec bplan "{ $ip }"
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done
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for ip in $WAN_BP_IP; do
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$NFT add element inet ss_spec whitelist "{ $ip }"
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done
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for ip in $WAN_FW_IP; do
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$NFT add element inet ss_spec blacklist "{ $ip }"
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done
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# Create main chain for WAN access control
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$NFT add chain inet ss_spec ss_spec_wan_ac '{ type nat hook prerouting priority dstnat; }' 2>/dev/null
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$NFT add rule inet ss_spec ss_spec_wan_ac tcp dport 53 ip daddr 127.0.0.0/8 return
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$NFT add rule inet ss_spec ss_spec_wan_ac tcp dport != 53 ip daddr "$server" return
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# Add special IP ranges to WAN AC set
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for ip in $(gen_spec_iplist); do
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$NFT add element inet ss_spec ss_spec_wan_ac "{ $ip }"
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done
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# Set up mode-specific rules
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case "$RUNMODE" in
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router)
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if command -v ipset >/dev/null 2>&1 && ipset list china -name -quiet >/dev/null 2>&1; then
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$NFT add rule inet ss_spec ss_spec_wan_ac ip daddr @ss_spec_wan_ac return
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$NFT add rule inet ss_spec ss_spec_wan_ac ip daddr "@china" return
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$NFT add rule inet ss_spec ss_spec_wan_ac ip saddr @gmlan ip daddr != "@china" goto ss_spec_wan_fw
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$NFT add rule inet ss_spec ss_spec_wan_ac goto ss_spec_wan_fw
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else
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$NFT add rule inet ss_spec ss_spec_wan_ac ip daddr @ss_spec_wan_ac return
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$NFT add rule inet ss_spec ss_spec_wan_ac goto ss_spec_wan_fw
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fi
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;;
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gfw)
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if command -v ipset >/dev/null 2>&1 && ipset list china -name -quiet >/dev/null 2>&1; then
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$NFT add rule inet ss_spec ss_spec_wan_ac ip daddr "@china" return
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$NFT add rule inet ss_spec ss_spec_wan_ac ip daddr "@gfwlist" goto ss_spec_wan_fw
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$NFT add rule inet ss_spec ss_spec_wan_ac ip saddr @gmlan ip daddr != "@china" goto ss_spec_wan_fw
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fi
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;;
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oversea)
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$NFT add rule inet ss_spec ss_spec_wan_ac ip daddr @oversea goto ss_spec_wan_fw
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$NFT add rule inet ss_spec ss_spec_wan_ac ip saddr @gmlan goto ss_spec_wan_fw
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if command -v ipset >/dev/null 2>&1 && ipset list china -name -quiet >/dev/null 2>&1; then
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$NFT add rule inet ss_spec ss_spec_wan_ac ip daddr "@china" goto ss_spec_wan_fw
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fi
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;;
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all)
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$NFT add rule inet ss_spec ss_spec_wan_ac goto ss_spec_wan_fw
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;;
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esac
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# Access control rules
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$NFT add rule inet ss_spec ss_spec_wan_ac ip saddr @fplan goto ss_spec_wan_fw
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$NFT add rule inet ss_spec ss_spec_wan_ac ip saddr @bplan return
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$NFT add rule inet ss_spec ss_spec_wan_ac ip daddr @blacklist goto ss_spec_wan_fw
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$NFT add rule inet ss_spec ss_spec_wan_ac ip daddr @whitelist return
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# Music unlocking support
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if command -v ipset >/dev/null 2>&1 && ipset list music -name -quiet >/dev/null 2>&1; then
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$NFT add rule inet ss_spec ss_spec_wan_ac ip daddr "@music" return 2>/dev/null
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fi
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# Shunt/Netflix rules
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if [ "$SHUNT_PORT" != "0" ]; then
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for ip in $(cat "${SHUNT_LIST:=/dev/null}" 2>/dev/null); do
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$NFT add element inet ss_spec netflix "{ $ip }"
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done
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case "$SHUNT_PORT" in
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1)
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$NFT add rule inet ss_spec ss_spec_wan_ac tcp dport "$PROXY_PORTS" ip daddr @netflix redirect to :"$local_port"
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;;
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*)
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$NFT add rule inet ss_spec ss_spec_wan_ac tcp dport "$PROXY_PORTS" ip daddr @netflix redirect to :"$SHUNT_PORT"
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if [ "$SHUNT_PROXY" = "1" ]; then
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$NFT add rule inet ss_spec ss_spec_wan_ac tcp dport "$PROXY_PORTS" ip daddr "$SHUNT_IP" redirect to :"$local_port"
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else
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$NFT add element inet ss_spec whitelist "{ $SHUNT_IP }"
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fi
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;;
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esac
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fi
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return 0
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}
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ipset_iptables() {
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[ -f "$IGNORE_LIST" ] && /usr/share/shadowsocksr/chinaipset.sh "$IGNORE_LIST"
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$IPT -N SS_SPEC_WAN_AC 2>/dev/null
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$IPT -I SS_SPEC_WAN_AC -p tcp --dport 53 -d 127.0.0.0/8 -j RETURN
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$IPT -I SS_SPEC_WAN_AC -p tcp ! --dport 53 -d "$server" -j RETURN
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ipset -N gmlan hash:net 2>/dev/null
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for ip in $LAN_GM_IP; do ipset -! add gmlan "$ip"; done
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case "$RUNMODE" in
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router)
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ipset -! -R <<-EOF || return 1
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create ss_spec_wan_ac hash:net
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$(gen_spec_iplist | sed -e "s/^/add ss_spec_wan_ac /")
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EOF
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$IPT -A SS_SPEC_WAN_AC -m set --match-set ss_spec_wan_ac dst -j RETURN
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$IPT -A SS_SPEC_WAN_AC -m set --match-set china dst -j RETURN
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$IPT -A SS_SPEC_WAN_AC -m set --match-set gmlan src -m set ! --match-set china dst -j SS_SPEC_WAN_FW
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$IPT -A SS_SPEC_WAN_AC -j SS_SPEC_WAN_FW
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;;
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gfw)
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ipset -N gfwlist hash:net 2>/dev/null
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$IPT -A SS_SPEC_WAN_AC -m set --match-set china dst -j RETURN
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$IPT -A SS_SPEC_WAN_AC -m set --match-set gfwlist dst -j SS_SPEC_WAN_FW
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$IPT -A SS_SPEC_WAN_AC -m set --match-set gmlan src -m set ! --match-set china dst -j SS_SPEC_WAN_FW
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;;
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oversea)
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ipset -N oversea hash:net 2>/dev/null
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$IPT -I SS_SPEC_WAN_AC -m set --match-set oversea dst -j SS_SPEC_WAN_FW
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$IPT -A SS_SPEC_WAN_AC -m set --match-set gmlan src -j SS_SPEC_WAN_FW
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$IPT -A SS_SPEC_WAN_AC -m set --match-set china dst -j SS_SPEC_WAN_FW
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;;
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all)
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$IPT -A SS_SPEC_WAN_AC -j SS_SPEC_WAN_FW
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;;
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esac
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ipset -N fplan hash:net 2>/dev/null
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for ip in $LAN_FP_IP; do ipset -! add fplan "$ip"; done
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$IPT -I SS_SPEC_WAN_AC -m set --match-set fplan src -j SS_SPEC_WAN_FW
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ipset -N bplan hash:net 2>/dev/null
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for ip in $LAN_BP_IP; do ipset -! add bplan "$ip"; done
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$IPT -I SS_SPEC_WAN_AC -m set --match-set bplan src -j RETURN
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ipset -N whitelist hash:net 2>/dev/null
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ipset -N blacklist hash:net 2>/dev/null
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$IPT -I SS_SPEC_WAN_AC -m set --match-set blacklist dst -j SS_SPEC_WAN_FW
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$IPT -I SS_SPEC_WAN_AC -m set --match-set whitelist dst -j RETURN
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if ipset list music -name -quiet >/dev/null 2>&1; then
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$IPT -I SS_SPEC_WAN_AC -m set --match-set music dst -j RETURN 2>/dev/null
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fi
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for ip in $WAN_BP_IP; do ipset -! add whitelist "$ip"; done
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for ip in $WAN_FW_IP; do ipset -! add blacklist "$ip"; done
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if [ "$SHUNT_PORT" != "0" ]; then
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ipset -N netflix hash:net 2>/dev/null
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for ip in $(cat "${SHUNT_LIST:=/dev/null}" 2>/dev/null); do ipset -! add netflix "$ip"; done
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case "$SHUNT_PORT" in
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0) ;;
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1)
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$IPT -I SS_SPEC_WAN_AC -p tcp -m set --match-set netflix dst -j REDIRECT --to-ports "$local_port"
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;;
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*)
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$IPT -I SS_SPEC_WAN_AC -p tcp -m set --match-set netflix dst -j REDIRECT --to-ports "$SHUNT_PORT"
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if [ "$SHUNT_PROXY" = "1" ]; then
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$IPT -I SS_SPEC_WAN_AC -p tcp -d "$SHUNT_IP" -j REDIRECT --to-ports "$local_port"
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else
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ipset -! add whitelist "$SHUNT_IP"
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fi
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;;
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esac
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fi
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return $?
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}
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fw_rule() {
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if [ "$USE_NFT" = "1" ]; then
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fw_rule_nft
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else
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fw_rule_iptables
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fi
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return $?
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}
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fw_rule_nft() {
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# Create forward chain with better error handling
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if ! $NFT list chain inet ss_spec ss_spec_wan_fw >/dev/null 2>&1; then
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$NFT add chain inet ss_spec ss_spec_wan_fw 2>/dev/null || {
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loger 3 "Failed to create forward chain"
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return 1
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}
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fi
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# Exclude special local addresses
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$NFT add rule inet ss_spec ss_spec_wan_fw ip daddr 0.0.0.0/8 return 2>/dev/null
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$NFT add rule inet ss_spec ss_spec_wan_fw ip daddr 10.0.0.0/8 return 2>/dev/null
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$NFT add rule inet ss_spec ss_spec_wan_fw ip daddr 127.0.0.0/8 return 2>/dev/null
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$NFT add rule inet ss_spec ss_spec_wan_fw ip daddr 169.254.0.0/16 return 2>/dev/null
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$NFT add rule inet ss_spec ss_spec_wan_fw ip daddr 172.16.0.0/12 return 2>/dev/null
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$NFT add rule inet ss_spec ss_spec_wan_fw ip daddr 192.168.0.0/16 return 2>/dev/null
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$NFT add rule inet ss_spec ss_spec_wan_fw ip daddr 224.0.0.0/4 return 2>/dev/null
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$NFT add rule inet ss_spec ss_spec_wan_fw ip daddr 240.0.0.0/4 return 2>/dev/null
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# redirect/translation: when PROXY_PORTS present, redirect those tcp ports to local_port
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if [ -n "$PROXY_PORTS" ]; then
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$NFT add rule inet ss_spec ss_spec_wan_fw tcp dport "$PROXY_PORTS" redirect to :"$local_port" 2>/dev/null || {
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loger 3 "Can't redirect, please check nftables."
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exit 1
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}
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else
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# default: redirect everything except ssh(22)
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$NFT add rule inet ss_spec ss_spec_wan_fw tcp dport != 22 redirect to :"$local_port" 2>/dev/null || {
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loger 3 "Can't redirect, please check nftables."
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exit 1
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}
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fi
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return 0
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}
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fw_rule_iptables() {
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$IPT -N SS_SPEC_WAN_FW
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$IPT -A SS_SPEC_WAN_FW -d 0.0.0.0/8 -j RETURN
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$IPT -A SS_SPEC_WAN_FW -d 10.0.0.0/8 -j RETURN
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$IPT -A SS_SPEC_WAN_FW -d 127.0.0.0/8 -j RETURN
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$IPT -A SS_SPEC_WAN_FW -d 169.254.0.0/16 -j RETURN
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$IPT -A SS_SPEC_WAN_FW -d 172.16.0.0/12 -j RETURN
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$IPT -A SS_SPEC_WAN_FW -d 192.168.0.0/16 -j RETURN
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$IPT -A SS_SPEC_WAN_FW -d 224.0.0.0/4 -j RETURN
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$IPT -A SS_SPEC_WAN_FW -d 240.0.0.0/4 -j RETURN
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$IPT -A SS_SPEC_WAN_FW -p tcp $PROXY_PORTS -j REDIRECT --to-ports "$local_port" 2>/dev/null || {
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loger 3 "Can't redirect, please check the iptables."
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exit 1
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}
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return $?
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}
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ac_rule() {
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if [ "$USE_NFT" = "1" ]; then
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ac_rule_nft
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else
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ac_rule_iptables
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fi
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return $?
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}
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ac_rule_nft() {
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local MATCH_SET_CONDITION=""
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if [ -n "$LAN_AC_IP" ]; then
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# Create LAN access control set if needed
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$NFT add set inet ss_spec ss_spec_lan_ac '{ type ipv4_addr; flags interval; }' 2>/dev/null
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for ip in ${LAN_AC_IP#?}; do
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[ -n "$ip" ] && $NFT add element inet ss_spec ss_spec_lan_ac "{ $ip }" 2>/dev/null
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done
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case "${LAN_AC_IP%${LAN_AC_IP#?}}" in
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w | W)
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MATCH_SET_CONDITION="ip saddr @ss_spec_lan_ac"
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;;
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b | B)
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MATCH_SET_CONDITION="ip saddr != @ss_spec_lan_ac"
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;;
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*)
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loger 3 "Bad argument \`-a $LAN_AC_IP\`."
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return 2
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;;
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esac
|
|
fi
|
|
|
|
# Build a rule in the prerouting hook chain that jumps to business chain with conditions
|
|
if [ -z "$Interface" ]; then
|
|
# generic prerouting jump already exists (see ipset_nft), but if we have MATCH_SET_CONDITION we add a more specific rule
|
|
if [ -n "$MATCH_SET_CONDITION" ]; then
|
|
# add a more specific rule at the top of ss_spec_prerouting
|
|
$NFT insert rule inet ss_spec ss_spec_prerouting tcp $MATCH_SET_CONDITION comment "\"$TAG\"" jump ss_spec_wan_ac 2>/dev/null
|
|
fi
|
|
else
|
|
# For each Interface, find its actual ifname and add an iifname-limited prerouting rule
|
|
for name in $Interface; do
|
|
local IFNAME=$(uci -P /var/state get network."$name".ifname 2>/dev/null)
|
|
[ -z "$IFNAME" ] && IFNAME=$(uci -P /var/state get network."$name".device 2>/dev/null)
|
|
if [ -n "$IFNAME" ]; then
|
|
if [ -n "$MATCH_SET_CONDITION" ]; then
|
|
$NFT insert rule inet ss_spec ss_spec_prerouting iifname "$IFNAME" tcp $MATCH_SET_CONDITION comment "\"$TAG\"" jump ss_spec_wan_ac 2>/dev/null
|
|
else
|
|
$NFT insert rule inet ss_spec ss_spec_prerouting iifname "$IFNAME" tcp comment "\"$TAG\"" jump ss_spec_wan_ac 2>/dev/null
|
|
fi
|
|
fi
|
|
done
|
|
fi
|
|
|
|
case "$OUTPUT" in
|
|
1)
|
|
# create output hook chain & route output traffic into router chain
|
|
$NFT add chain inet ss_spec ss_spec_output '{ type nat hook output priority dstnat; }' 2>/dev/null
|
|
$NFT add rule inet ss_spec ss_spec_output tcp comment "\"$TAG\"" jump ss_spec_wan_ac 2>/dev/null
|
|
;;
|
|
2)
|
|
# router mode output chain: create ssr_gen_router set & router chain
|
|
$NFT add set inet ss_spec ssr_gen_router '{ type ipv4_addr; flags interval; }' 2>/dev/null
|
|
for ip in $(gen_spec_iplist); do
|
|
[ -n "$ip" ] && $NFT add element inet ss_spec ssr_gen_router "{ $ip }" 2>/dev/null
|
|
done
|
|
$NFT add chain inet ss_spec ss_spec_router 2>/dev/null
|
|
$NFT add rule inet ss_spec ss_spec_router ip daddr @ssr_gen_router return 2>/dev/null
|
|
$NFT add rule inet ss_spec ss_spec_router jump ss_spec_wan_fw 2>/dev/null
|
|
$NFT add chain inet ss_spec ss_spec_output '{ type nat hook output priority dstnat; }' 2>/dev/null
|
|
$NFT add rule inet ss_spec ss_spec_output tcp comment "\"$TAG\"" jump ss_spec_router 2>/dev/null
|
|
;;
|
|
esac
|
|
return 0
|
|
}
|
|
|
|
ac_rule_iptables() {
|
|
if [ -n "$LAN_AC_IP" ]; then
|
|
case "${LAN_AC_IP%${LAN_AC_IP#?}}" in
|
|
w | W)
|
|
MATCH_SET="-m set --match-set ss_spec_lan_ac src"
|
|
;;
|
|
b | B)
|
|
MATCH_SET="-m set ! --match-set ss_spec_lan_ac src"
|
|
;;
|
|
*)
|
|
loger 3 "Bad argument \`-a $LAN_AC_IP\`."
|
|
return 2
|
|
;;
|
|
esac
|
|
fi
|
|
ipset -! -R <<-EOF || return 1
|
|
create ss_spec_lan_ac hash:net
|
|
$(for ip in ${LAN_AC_IP#?}; do echo "add ss_spec_lan_ac $ip"; done)
|
|
EOF
|
|
if [ -z "$Interface" ]; then
|
|
$IPT -I PREROUTING 1 -p tcp $EXT_ARGS $MATCH_SET -m comment --comment "$TAG" -j SS_SPEC_WAN_AC
|
|
else
|
|
for name in $Interface; do
|
|
local IFNAME=$(uci -P /var/state get network."$name".ifname 2>/dev/null)
|
|
[ -z "$IFNAME" ] && IFNAME=$(uci -P /var/state get network."$name".device 2>/dev/null)
|
|
[ -n "$IFNAME" ] && $IPT -I PREROUTING 1 ${IFNAME:+-i $IFNAME} -p tcp $EXT_ARGS $MATCH_SET -m comment --comment "$TAG" -j SS_SPEC_WAN_AC
|
|
done
|
|
fi
|
|
|
|
case "$OUTPUT" in
|
|
1)
|
|
$IPT -I OUTPUT 1 -p tcp $EXT_ARGS -m comment --comment "$TAG" -j SS_SPEC_WAN_AC
|
|
;;
|
|
2)
|
|
ipset -! -R <<-EOF || return 1
|
|
create ssr_gen_router hash:net
|
|
$(gen_spec_iplist | sed -e "s/^/add ssr_gen_router /")
|
|
EOF
|
|
$IPT -N SS_SPEC_ROUTER && \
|
|
$IPT -A SS_SPEC_ROUTER -m set --match-set ssr_gen_router dst -j RETURN && \
|
|
$IPT -A SS_SPEC_ROUTER -j SS_SPEC_WAN_FW
|
|
$IPT -I OUTPUT 1 -p tcp -m comment --comment "$TAG" -j SS_SPEC_ROUTER
|
|
;;
|
|
esac
|
|
return $?
|
|
}
|
|
|
|
tp_rule() {
|
|
[ -n "$TPROXY" ] || return 0
|
|
if [ "$USE_NFT" = "1" ]; then
|
|
tp_rule_nft
|
|
else
|
|
tp_rule_iptables
|
|
fi
|
|
return $?
|
|
}
|
|
|
|
tp_rule_nft() {
|
|
[ -n "$TPROXY" ] || return 0
|
|
|
|
# set up routing table for tproxy
|
|
ip rule add fwmark 0x01/0x01 table 100 2>/dev/null
|
|
ip route add local 0.0.0.0/0 dev lo table 100 2>/dev/null
|
|
|
|
# create mangle table and tproxy chain
|
|
$NFT add table ip ss_spec_mangle 2>/dev/null
|
|
# use priority mangle for compatibility with other rules
|
|
$NFT add chain ip ss_spec_mangle ss_spec_tproxy '{ type filter hook prerouting priority mangle; }' 2>/dev/null
|
|
|
|
# basic return rules in tproxy chain
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp dport 53 return 2>/dev/null
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip daddr 0.0.0.0/8 return 2>/dev/null
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip daddr 10.0.0.0/8 return 2>/dev/null
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip daddr 127.0.0.0/8 return 2>/dev/null
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip daddr 169.254.0.0/16 return 2>/dev/null
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip daddr 172.16.0.0/12 return 2>/dev/null
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip daddr 192.168.0.0/16 return 2>/dev/null
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip daddr 224.0.0.0/4 return 2>/dev/null
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip daddr 240.0.0.0/4 return 2>/dev/null
|
|
|
|
# avoid redirecting to udp server address - 修正变量名
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp dport != 53 ip daddr "$server" return 2>/dev/null
|
|
|
|
# if server != SERVER add SERVER to whitelist set (so tproxy won't touch it)
|
|
if [ "$server" != "$SERVER" ]; then
|
|
$NFT add element inet ss_spec whitelist "{ $SERVER }" 2>/dev/null
|
|
fi
|
|
|
|
# access control and tproxy rules
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip saddr @bplan return 2>/dev/null
|
|
if [ -n "$PROXY_PORTS" ]; then
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp dport "$PROXY_PORTS" ip saddr @fplan tproxy to :"$LOCAL_PORT" meta mark set 0x01 2>/dev/null
|
|
else
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip saddr @fplan tproxy to :"$LOCAL_PORT" meta mark set 0x01 2>/dev/null
|
|
fi
|
|
|
|
# Handle different run modes for nftables
|
|
case "$RUNMODE" in
|
|
router)
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip daddr @ss_spec_wan_ac return 2>/dev/null
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip daddr @china return 2>/dev/null
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp dport 80 drop 2>/dev/null
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip saddr @gmlan ip daddr != @china tproxy to :"$LOCAL_PORT" meta mark set 0x01 2>/dev/null
|
|
if [ -n "$PROXY_PORTS" ]; then
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp dport "$PROXY_PORTS" ip daddr != @ss_spec_wan_ac tproxy to :"$LOCAL_PORT" meta mark set 0x01 2>/dev/null
|
|
else
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip daddr != @ss_spec_wan_ac tproxy to :"$LOCAL_PORT" meta mark set 0x01 2>/dev/null
|
|
fi
|
|
;;
|
|
gfw)
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip daddr @china return 2>/dev/null
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp dport 80 drop 2>/dev/null
|
|
if [ -n "$PROXY_PORTS" ]; then
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp dport "$PROXY_PORTS" ip daddr @gfwlist tproxy to :"$LOCAL_PORT" meta mark set 0x01 2>/dev/null
|
|
fi
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip saddr @gmlan ip daddr != @china tproxy to :"$LOCAL_PORT" meta mark set 0x01 2>/dev/null
|
|
;;
|
|
oversea)
|
|
if [ -n "$PROXY_PORTS" ]; then
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp dport "$PROXY_PORTS" ip saddr @oversea tproxy to :"$LOCAL_PORT" meta mark set 0x01 2>/dev/null
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp dport "$PROXY_PORTS" ip daddr @china tproxy to :"$LOCAL_PORT" meta mark set 0x01 2>/dev/null
|
|
fi
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp ip saddr @gmlan tproxy to :"$LOCAL_PORT" meta mark set 0x01 2>/dev/null
|
|
;;
|
|
all)
|
|
if [ -n "$PROXY_PORTS" ]; then
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp dport "$PROXY_PORTS" tproxy to :"$LOCAL_PORT" meta mark set 0x01 2>/dev/null
|
|
else
|
|
$NFT add rule ip ss_spec_mangle ss_spec_tproxy udp tproxy to :"$LOCAL_PORT" meta mark set 0x01 2>/dev/null
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
# insert jump from ip prerouting to our tproxy chain
|
|
$NFT add rule ip ss_spec_mangle prerouting udp comment "\"$TAG\"" jump ss_spec_tproxy 2>/dev/null
|
|
|
|
return 0
|
|
}
|
|
|
|
tp_rule_iptables() {
|
|
ip rule add fwmark 0x01/0x01 table 100
|
|
ip route add local 0.0.0.0/0 dev lo table 100
|
|
local ipt="iptables -t mangle"
|
|
$ipt -N SS_SPEC_TPROXY
|
|
$ipt -A SS_SPEC_TPROXY -p udp --dport 53 -j RETURN
|
|
$ipt -A SS_SPEC_TPROXY -p udp -d 0.0.0.0/8 -j RETURN
|
|
$ipt -A SS_SPEC_TPROXY -p udp -d 10.0.0.0/8 -j RETURN
|
|
$ipt -A SS_SPEC_TPROXY -p udp -d 127.0.0.0/8 -j RETURN
|
|
$ipt -A SS_SPEC_TPROXY -p udp -d 169.254.0.0/16 -j RETURN
|
|
$ipt -A SS_SPEC_TPROXY -p udp -d 172.16.0.0/12 -j RETURN
|
|
$ipt -A SS_SPEC_TPROXY -p udp -d 192.168.0.0/16 -j RETURN
|
|
$ipt -A SS_SPEC_TPROXY -p udp -d 224.0.0.0/4 -j RETURN
|
|
$ipt -A SS_SPEC_TPROXY -p udp -d 240.0.0.0/4 -j RETURN
|
|
$ipt -A SS_SPEC_TPROXY -p udp ! --dport 53 -d "$SERVER" -j RETURN
|
|
[ "$server" != "$SERVER" ] && ipset -! add whitelist "$SERVER"
|
|
$ipt -A SS_SPEC_TPROXY -p udp -m set --match-set bplan src -j RETURN
|
|
$ipt -A SS_SPEC_TPROXY -p udp $PROXY_PORTS -m set --match-set fplan src -j TPROXY --on-port "$LOCAL_PORT" --tproxy-mark 0x01/0x01
|
|
case "$RUNMODE" in
|
|
router)
|
|
$ipt -A SS_SPEC_TPROXY -p udp -m set --match-set ss_spec_wan_ac dst -j RETURN
|
|
$ipt -A SS_SPEC_TPROXY -p udp -m set --match-set china dst -j RETURN
|
|
$ipt -A SS_SPEC_TPROXY -p udp --dport 80 -j DROP
|
|
$ipt -A SS_SPEC_TPROXY -p udp -m set --match-set gmlan src -m set ! --match-set china dst -j TPROXY --on-port "$LOCAL_PORT" --tproxy-mark 0x01/0x01
|
|
$ipt -A SS_SPEC_TPROXY -p udp $PROXY_PORTS -m set ! --match-set ss_spec_wan_ac dst -j TPROXY --on-port "$LOCAL_PORT" --tproxy-mark 0x01/0x01
|
|
;;
|
|
gfw)
|
|
$ipt -A SS_SPEC_TPROXY -p udp -m set --match-set china dst -j RETURN
|
|
$ipt -A SS_SPEC_TPROXY -p udp --dport 80 -j DROP
|
|
$ipt -A SS_SPEC_TPROXY -p udp $PROXY_PORTS -m set --match-set gfwlist dst -j TPROXY --on-port "$LOCAL_PORT" --tproxy-mark 0x01/0x01
|
|
$ipt -A SS_SPEC_TPROXY -p udp -m set --match-set gmlan src -m set ! --match-set china dst -j TPROXY --on-port "$LOCAL_PORT" --tproxy-mark 0x01/0x01
|
|
;;
|
|
oversea)
|
|
$ipt -A SS_SPEC_TPROXY -p udp $PROXY_PORTS -m set --match-set oversea src -m dst -j TPROXY --on-port "$LOCAL_PORT" --tproxy-mark 0x01/0x01
|
|
$ipt -A SS_SPEC_TPROXY -p udp -m set --match-set gmlan src -m set -j TPROXY --on-port "$LOCAL_PORT" --tproxy-mark 0x01/0x01
|
|
$ipt -A SS_SPEC_TPROXY -p udp $PROXY_PORTS -m set --match-set china dst -j TPROXY --on-port "$LOCAL_PORT" --tproxy-mark 0x01/0x01
|
|
;;
|
|
all)
|
|
$ipt -A SS_SPEC_TPROXY -p udp $PROXY_PORTS -j TPROXY --on-port "$LOCAL_PORT" --tproxy-mark 0x01/0x01
|
|
;;
|
|
esac
|
|
if [ -z "$Interface" ]; then
|
|
$ipt -I PREROUTING 1 -p udp $EXT_ARGS $MATCH_SET -m comment --comment "$TAG" -j SS_SPEC_TPROXY
|
|
else
|
|
for name in $Interface; do
|
|
local IFNAME=$(uci -P /var/state get network."$name".ifname 2>/dev/null)
|
|
[ -z "$IFNAME" ] && IFNAME=$(uci -P /var/state get network."$name".device 2>/dev/null)
|
|
[ -n "$IFNAME" ] && $ipt -I PREROUTING 1 ${IFNAME:+-i $IFNAME} -p udp $EXT_ARGS $MATCH_SET -m comment --comment "$TAG" -j SS_SPEC_TPROXY
|
|
done
|
|
fi
|
|
return $?
|
|
}
|
|
|
|
get_wan_ip() {
|
|
cat <<-EOF | grep -E "^([0-9]{1,3}\.){3}[0-9]{1,3}"
|
|
$server
|
|
$SERVER
|
|
$WAN_BP_IP
|
|
EOF
|
|
}
|
|
|
|
gen_spec_iplist() {
|
|
cat <<-EOF
|
|
0.0.0.0/8
|
|
10.0.0.0/8
|
|
100.64.0.0/10
|
|
127.0.0.0/8
|
|
169.254.0.0/16
|
|
172.16.0.0/12
|
|
192.0.0.0/24
|
|
192.0.2.0/24
|
|
192.88.99.0/24
|
|
192.168.0.0/16
|
|
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
|
|
$(get_wan_ip)
|
|
EOF
|
|
}
|
|
|
|
gen_include() {
|
|
[ -n "$FWI" ] || return 0
|
|
if [ "$USE_NFT" = "1" ]; then
|
|
gen_include_nft
|
|
else
|
|
gen_include_iptables
|
|
fi
|
|
return $?
|
|
}
|
|
|
|
gen_include_nft() {
|
|
# Generate nftables include file for firewall4
|
|
[ -n "$FWI" ] && echo '#!/bin/sh' >"$FWI"
|
|
cat <<-'EOF' >>"$FWI"
|
|
# Clear existing ss_spec tables
|
|
nft delete table inet ss_spec 2>/dev/null
|
|
nft delete table ip ss_spec 2>/dev/null
|
|
nft delete table ip ss_spec_mangle 2>/dev/null
|
|
|
|
# Restore shadowsocks nftables rules
|
|
nft list ruleset | awk '/table (inet|ip) ss_spec/{flag=1} flag'
|
|
EOF
|
|
chmod +x "$FWI"
|
|
}
|
|
|
|
gen_include_iptables() {
|
|
extract_rules() {
|
|
echo "*$1"
|
|
iptables-save -t $1 | grep SS_SPEC_ | sed -e "s/^-A \(OUTPUT\|PREROUTING\)/-I \1 1/"
|
|
echo 'COMMIT'
|
|
}
|
|
cat <<-EOF >>$FWI
|
|
iptables-save -c | grep -v "SS_SPEC" | iptables-restore -c
|
|
iptables-restore -n <<-EOT
|
|
$(extract_rules nat)
|
|
$(extract_rules mangle)
|
|
EOT
|
|
EOF
|
|
}
|
|
|
|
while getopts ":m:s:l:S:L:i:e:a:B:b:w:p:G:D:F:N:M:I:oOuUfgrczh" arg; do
|
|
case "$arg" in
|
|
m)
|
|
Interface=$OPTARG
|
|
;;
|
|
s)
|
|
server=$OPTARG
|
|
;;
|
|
l)
|
|
local_port=$OPTARG
|
|
;;
|
|
S)
|
|
SERVER=$OPTARG
|
|
;;
|
|
L)
|
|
LOCAL_PORT=$OPTARG
|
|
;;
|
|
i)
|
|
IGNORE_LIST=$OPTARG
|
|
;;
|
|
e)
|
|
EXT_ARGS=$OPTARG
|
|
;;
|
|
a)
|
|
LAN_AC_IP=$OPTARG
|
|
;;
|
|
B)
|
|
LAN_BP_IP=$OPTARG
|
|
;;
|
|
b)
|
|
WAN_BP_IP=$(for ip in $OPTARG; do echo "$ip"; done)
|
|
;;
|
|
w)
|
|
WAN_FW_IP=$OPTARG
|
|
;;
|
|
p)
|
|
LAN_FP_IP=$OPTARG
|
|
;;
|
|
G)
|
|
LAN_GM_IP=$OPTARG
|
|
;;
|
|
D)
|
|
PROXY_PORTS=$OPTARG
|
|
;;
|
|
F)
|
|
SHUNT_PORT=$OPTARG
|
|
;;
|
|
N)
|
|
SHUNT_IP=$OPTARG
|
|
;;
|
|
M)
|
|
SHUNT_PROXY=$OPTARG
|
|
;;
|
|
I)
|
|
SHUNT_LIST=$OPTARG
|
|
;;
|
|
o)
|
|
OUTPUT=1
|
|
;;
|
|
O)
|
|
OUTPUT=2
|
|
;;
|
|
u)
|
|
TPROXY=1
|
|
;;
|
|
U)
|
|
TPROXY=2
|
|
;;
|
|
g)
|
|
RUNMODE=gfw
|
|
;;
|
|
r)
|
|
RUNMODE=router
|
|
;;
|
|
c)
|
|
RUNMODE=oversea
|
|
;;
|
|
z)
|
|
RUNMODE=all
|
|
;;
|
|
f)
|
|
flush_r
|
|
exit 0
|
|
;;
|
|
h) usage 0 ;;
|
|
esac
|
|
done
|
|
|
|
if [ -z "$server" ] || [ -z "$local_port" ]; then
|
|
usage 2
|
|
fi
|
|
|
|
if ! echo "$local_port" | grep -qE '^[0-9]+$'; then
|
|
loger 3 "Invalid local port: $local_port"
|
|
exit 1
|
|
fi
|
|
|
|
case "$TPROXY" in
|
|
1)
|
|
SERVER=$server
|
|
LOCAL_PORT=$local_port
|
|
;;
|
|
2)
|
|
: ${SERVER:?"You must assign an ip for the udp relay server."}
|
|
: ${LOCAL_PORT:?"You must assign a port for the udp relay server."}
|
|
;;
|
|
esac
|
|
|
|
if flush_r && fw_rule && ipset_r && ac_rule && tp_rule && gen_include; then
|
|
loger 5 "Rules applied successfully"
|
|
exit 0
|
|
else
|
|
loger 3 "Start failed!"
|
|
exit 1
|
|
fi
|