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103 lines
4.6 KiB
103 lines
4.6 KiB
#!/bin/sh /etc/rc.common
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PKG_VERSION=
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export START=94
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export USE_PROCD=1
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readonly __ok__='\033[0;32m[\xe2\x9c\x93]\033[0m'
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readonly __fail__='\033[0;31m[\xe2\x9c\x97]\033[0m'
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readonly __pass__='\033[0;33m[-]\033[0m'
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readonly __error__='\033[0;31mERROR\033[0m'
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export verbosity=2 TID='200' IPSET='vpnbypass' FW_MARK='0x010000' FW_MASK='0xff0000' wan_if4 wan_gw
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output() { [[ $# -ne 1 ]] && { [[ ! $((verbosity & $1)) -gt 0 ]] && return 0 || shift; }; local msg; msg=$(echo -n "${1/$p_name /service }" | sed 's|\\033\[[0-9]\?;\?[0-9]\?[0-9]\?m||g'); [[ -t 1 ]] && echo -e -n "$1"; [[ $(echo -e -n "$msg" | wc -l) -gt 0 ]] && logger -t "${PKG_NAME:-service} [$$]" "$(echo -e -n ${logmsg}${msg})" && logmsg='' || logmsg=${logmsg}${msg}; }
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PKG_NAME="${PKG_NAME:-vpnbypass}"; p_name="${PKG_NAME} ${PKG_VERSION}"
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is_enabled() {
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local c=1 enabled
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config_load $PKG_NAME
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config_get_bool enabled 'config' 'enabled' 1
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config_get verbosity 'config' 'verbosity' '2'
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config_get TID 'config' 'table_number' '200'
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config_get IPSET 'config' 'ipset' 'vpnbypass'
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config_get FW_MARK 'config' 'fw_mark' '0x010000'
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config_get FW_MASK 'config' 'fw_mask' '0xff0000'
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source /lib/functions/network.sh
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[[ $enabled -gt 0 ]] || { output "$__error__: $p_name is not enabled.\n"; return 1; }
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source /lib/functions/network.sh
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while : ; do
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network_find_wan wan_if4
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[ -n "$wan_if4" ] && network_get_gateway wan_gw $wan_if4
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[[ $c -ge 25 || -n "$wan_gw" ]] && break
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output "$p_name waiting for wan gateway...\n"
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sleep 2; network_flush_cache; let "c+=1";
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done
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[ -n "$wan_gw" ] && return 0 || { output "$__error__: $p_name failed to discover WAN gateway.\n"; return 1; }
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}
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ipt() {
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local d; d=$(echo "$*" | sed s/-A/-D/g);
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[ "$d" != "$*" ] && iptables $d >/dev/null 2>&1
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d=$(echo "$*" | sed s/-I/-D/g)
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[ "$d" != "$*" ] && iptables $d >/dev/null 2>&1
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d=$(echo "$*" | sed s/-N/-F/g)
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[ "$d" != "$*" ] && iptables $d >/dev/null 2>&1
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d=$(echo "$*" | sed s/-N/-X/g)
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[ "$d" != "$*" ] && iptables $d >/dev/null 2>&1
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d="$*"
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iptables $d >/dev/null 2>&1 || output "\n$__error__: iptables $d\n"
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}
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start_service() {
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local ll lports rports routes ranges
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is_enabled || return 1
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config_get lports 'config' 'localport'
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config_get rports 'config' 'remoteport'
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config_get routes 'config' 'remotesubnet'
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config_get ranges 'config' 'localsubnet'
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procd_open_instance
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procd_set_param stdout 1
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procd_set_param stderr 1
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procd_close_instance
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iptables -t mangle -D PREROUTING -m mark --mark 0x00/${FW_MASK} -g VPNBYPASS >/dev/null 2>&1
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ipt -t mangle -N VPNBYPASS; ipt -t mangle -A PREROUTING -m mark --mark 0x00/${FW_MASK} -g VPNBYPASS;
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ipt -t mangle -A VPNBYPASS -m set --match-set $IPSET dst -j MARK --set-mark ${FW_MARK}/${FW_MASK}
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ip rule del fwmark "$FW_MARK" table "$TID" >/dev/null 2>&1; ipset -q flush "$IPSET"; ipset -q destroy "$IPSET";
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ip route flush table "$TID"; ip route flush cache;
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ip route add default via "$wan_gw" table "$TID"; ip route flush cache;
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ipset -q -exist create "$IPSET" hash:ip; ipset -q flush "$IPSET"
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ip rule add fwmark "$FW_MARK" table "$TID"
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{ modprobe xt_set; modprobe ip_set; modprobe ip_set_hash_ip; } >/dev/null 2>&1
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for ll in ${ranges}; do ipt -t mangle -I VPNBYPASS 1 -j MARK --set-mark ${FW_MARK}/${FW_MASK} -s "$ll"; done
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for ll in ${lports}; do ipt -t mangle -I VPNBYPASS 1 -j MARK --set-mark ${FW_MARK}/${FW_MASK} -p tcp -m multiport --sport "${ll//-/:}"; done
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for ll in ${routes}; do ipt -t mangle -I VPNBYPASS 1 -j MARK --set-mark ${FW_MARK}/${FW_MASK} -d "$ll"; done
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for ll in ${rports}; do ipt -t mangle -I VPNBYPASS 1 -j MARK --set-mark ${FW_MARK}/${FW_MASK} -p tcp -m multiport --dport "${ll//-/:}"; done
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output "$p_name started with TID: $TID; FW_MARK: $FW_MARK\n"
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}
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stop_service() {
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is_enabled || return 1
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ip rule del fwmark "$FW_MARK" table "$TID" >/dev/null 2>&1; ipset -q flush "$IPSET"; ipset -q destroy "$IPSET";
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ip route flush table "$TID"; ip route flush cache;
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iptables -t mangle -D PREROUTING -m mark --mark 0x00/${FW_MASK} -g VPNBYPASS >/dev/null 2>&1
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iptables -t mangle -F VPNBYPASS >/dev/null 2>&1; iptables -t mangle -X VPNBYPASS >/dev/null 2>&1;
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output "$p_name stopped\n"
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}
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reload_service(){
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start_service
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}
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st_load_interfaces(){ local d; config_get d $1 ifname; [[ "$1" == "$wan_if4" || "$d" != "${d/tun}" || "$d" != "${d/tap}" ]] && ifaces=" ${1} ${ifaces}"; }
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service_triggers() {
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local ifaces n
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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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for n in $ifaces; do procd_add_interface_trigger "interface.*" "$n" /etc/init.d/openvpn-policy-routing reload; done;
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procd_close_trigger
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}
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