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82 lines
3.8 KiB
82 lines
3.8 KiB
#!/bin/sh /etc/rc.common
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PKG_NAME='vpnbypass'
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PKG_VERSION=
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START=94
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USE_PROCD=1
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TID="200"; FW_MARK="0x010000"; IPSET="vpnbypass";
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output() {
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[ -n "$2" ] && [ ! $(($verbosity & $2)) -gt 0 ] && return 0;
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[ -t 1 ] && echo -e -n "$1"
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[ $(echo -e -n "$1" | wc -l) -gt 0 ] && logger -t "${PKG_NAME:-service} [$$]" "$(echo -e -n ${logmsg}${1//$p_name /service })" && logmsg='' || logmsg=${logmsg}${1//p_name /service }
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}
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vpnbypass_enabled() {
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config_load vpnbypass
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config_get_bool enabled 'config' 'enabled' 0
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config_get verbosity 'config' 'verbosity' '2'
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[ -n "$PKG_NAME" -a -n "$PKG_VERSION" ] && p_name="$PKG_NAME $PKG_VERSION" || p_name='vpnbypass'
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[ "$enabled" -ne "0" ] && return 0
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output "$p_name is not enabled in the config file!\n"
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output "To enable, run 'uci set vpnbypass.config.enabled=1; uci commit vpnbypass'\n"
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return 1
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}
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boot() { ubus -t 30 wait_for network.interface.wan && { rc_procd start_service; rc_procd service_triggers; } || output "ERROR: $p_name failed to settle network interface!\n"; }
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start_service() {
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local ll c=1
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config_load vpnbypass
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vpnbypass_enabled || return 1
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config_get lports 'config' 'localport'
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config_get rports 'config' 'remoteport'
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config_get routes 'config' 'remotesubnet'
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config_get ranges 'config' 'localsubnet'
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config_get domains 'config' 'domain'
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procd_open_instance
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procd_set_param stdout 1
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procd_set_param stderr 1
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procd_close_instance
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source /lib/functions/network.sh
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while : ; do network_get_ipaddr wanip wan; network_get_gateway gwip wan; [ $c -ge 15 ] && break || let "c+=1"; [ -n "$wanip" -a -n "$gwip" ] && break || output "$p_name waiting for wan gateway...\n"; sleep 2; network_flush_cache; done
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[ -z "$wanip" -o -z "$gwip" ] && output "ERROR: $p_name could not get wan interface IP: $wanip or gateway: $gwip!\n" && exit 0
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for ll in ${routes}; do { [ "$ll" = "${ll#*\/*}" ] && ll="${ll}/32"; ip route del $ll; ip route add $ll via $gwip; } >/dev/null 2>&1; done
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{ ip rule del fwmark $FW_MARK table $TID; iptables -t mangle -F; ipset -F $IPSET; ipset -X $IPSET; } >/dev/null 2>&1
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{ ip route flush table $TID; ip route flush cache; } >/dev/null 2>&1
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{ ip route add default via $gwip table $TID; ip route flush cache; } >/dev/null 2>&1
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{ modprobe xt_set || modprobe ip_set; insmod ip_set_hash_ip; } >/dev/null 2>&1
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{ ipset -N $IPSET iphash -q; ipset -F $IPSET; } >/dev/null 2>&1
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for ll in ${lports}; do iptables -t mangle -A PREROUTING -p tcp -m multiport --sport $ll -j MARK --set-mark $FW_MARK/$FW_MARK -m comment --comment "vpnbypass"; done
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for ll in ${rports}; do iptables -t mangle -A PREROUTING -p tcp -m multiport --dport $ll -j MARK --set-mark $FW_MARK/$FW_MARK -m comment --comment "vpnbypass"; done
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for ll in ${ranges}; do [ "$ll" = "${ll#*\/*}" ] && ll="${ll}/32"; iptables -t mangle -I PREROUTING -s $ll -j MARK --set-mark $FW_MARK/$FW_MARK -m comment --comment "vpnbypass"; done
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iptables -t mangle -A PREROUTING -m set --match-set $IPSET dst -j MARK --set-mark $FW_MARK/$FW_MARK -m comment --comment "vpnbypass"
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ip rule add fwmark $FW_MARK table $TID
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output "$p_name started with TID: $TID; FW_MARK: $FW_MARK\n"
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}
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stop_service() {
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local ll
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vpnbypass_enabled || return 1
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config_get routes 'config' 'remotesubnet'
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for ll in ${routes}; do [ "$ll" = "${ll#*\/*}" ] && ll="${ll}/32"; ip route del $ll >/dev/null 2>&1; done
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# iptables-save | grep -Fv -- "vpnbypass" | iptables-restore
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{ ip rule del fwmark $FW_MARK table $TID; iptables -t mangle -F; ipset -F $IPSET; ipset -X $IPSET; } >/dev/null 2>&1
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{ ip route flush table $TID; ip route flush cache; } >/dev/null 2>&1
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output "$p_name stopped\n"
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}
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reload_service(){ start_service; }
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service_triggers() {
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procd_add_reload_trigger 'vpnbypass'
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procd_open_trigger
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procd_add_config_trigger "config.change" "vpnbypass" /etc/init.d/vpnbypass reload
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procd_add_interface_trigger "interface.*" "wan" /etc/init.d/vpnbypass reload
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procd_close_trigger
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}
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