X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/291f78f21ab699d2650a7f308ac8c58ccf85275e..fb73402d37d0e26c53c352649e5d4465c614aafc:/package/firewall/files/lib/core_interface.sh

diff --git a/package/firewall/files/lib/core_interface.sh b/package/firewall/files/lib/core_interface.sh
index c2a5bd7f3..bc9eb96dd 100644
--- a/package/firewall/files/lib/core_interface.sh
+++ b/package/firewall/files/lib/core_interface.sh
@@ -1,5 +1,29 @@
 # Copyright (C) 2009-2010 OpenWrt.org
 
+fw__uci_state_add() {
+	local var="$1"
+	local item="$2"
+
+	local val=" $(uci_get_state firewall core $var) "
+	val="${val// $item / }"
+	val="${val# }"
+	val="${val% }"
+	uci_revert_state firewall core $var
+	uci_set_state firewall core $var "${val:+$val }$item"
+}
+
+fw__uci_state_del() {
+	local var="$1"
+	local item="$2"
+
+	local val=" $(uci_get_state firewall core $var) "
+	val="${val// $item / }"
+	val="${val# }"
+	val="${val% }"
+	uci_revert_state firewall core $var
+	uci_set_state firewall core $var "$val"
+}
+
 fw_configure_interface() {
 	local iface=$1
 	local action=$2
@@ -27,11 +51,9 @@ fw_configure_interface() {
 		local chain=zone_${zone}
 		local ifname=$3
 		local subnet=$4
-		local masq_src=$5
-		local masq_dest=$6
 
-		local inet onet
-		local mode=$(fw_get_family_mode x $zone i)
+		local inet onet mode
+		fw_get_family_mode mode x $zone i
 
 		case "$mode/$subnet" in
 			# Zone supports v6 only or dual, need v6
@@ -53,8 +75,13 @@ fw_configure_interface() {
 
 			# Need v4 while zone is v6
 			*/*.*) fw_log info "zone $zone does not support IPv4 address family, skipping"; return ;;
+
+			# Strip prefix
+			*) mode="${mode#G}" ;;
 		esac
 
+		lock /var/run/firewall-interface.lock
+
 		fw $action $mode f ${chain}_ACCEPT ACCEPT $ { -o "$ifname" $onet }
 		fw $action $mode f ${chain}_ACCEPT ACCEPT $ { -i "$ifname" $inet }
 		fw $action $mode f ${chain}_DROP   DROP   $ { -o "$ifname" $onet }
@@ -62,41 +89,35 @@ fw_configure_interface() {
 		fw $action $mode f ${chain}_REJECT reject $ { -o "$ifname" $onet }
 		fw $action $mode f ${chain}_REJECT reject $ { -i "$ifname" $inet }
 
-		# NB: if MASQUERADING for IPv6 becomes available we'll need a family check here
-		local msrc mdst
-		for msrc in ${masq_src:-0.0.0.0/0}; do
-			[ "${msrc#!}" != "$msrc" ] && msrc="! -s ${msrc#!}" || msrc="-s $msrc"
-			for mdst in ${subnet:-${masq_dest:-0.0.0.0/0}}; do
-				[ "${mdst#!}" != "$mdst" ] && mdst="! -d ${mdst#!}" || mdst="-d $mdst"
-				fw $action $mode n ${chain}_nat MASQUERADE $ { -o "$ifname" $msrc $mdst }
-			done
-		done
-
 		fw $action $mode f ${chain}_MSSFIX TCPMSS  $ { -o "$ifname" -p tcp --tcp-flags SYN,RST SYN --clamp-mss-to-pmtu $onet }
 
 		fw $action $mode f input   ${chain}         $ { -i "$ifname" $inet }
 		fw $action $mode f forward ${chain}_forward $ { -i "$ifname" $inet }
 		fw $action $mode n PREROUTING ${chain}_prerouting $ { -i "$ifname" $inet }
 		fw $action $mode r PREROUTING ${chain}_notrack    $ { -i "$ifname" $inet }
+		fw $action $mode n POSTROUTING ${chain}_nat       $ { -o "$ifname" $onet }
+
+		lock -u /var/run/firewall-interface.lock
 	}
 
-	local old_zones old_ifname old_subnets old_masq_src old_masq_dest
+	local old_zones old_ifname old_subnets
 	config_get old_zones core "${iface}_zone"
 	[ -n "$old_zones" ] && {
 		config_get old_ifname core "${iface}_ifname"
 		config_get old_subnets core "${iface}_subnets"
-		config_get old_masq_src core "${iface}_masq_src"
-		config_get old_masq_dest core "${iface}_masq_dest"
 
 		local z
 		for z in $old_zones; do
 			local n
 			for n in ${old_subnets:-""}; do
 				fw_log info "removing $iface ($old_ifname${n:+ alias $n}) from zone $z"
-				fw__do_rules del $z $old_ifname $n "$old_masq_src" "$old_masq_dest"
+				fw__do_rules del $z $old_ifname $n
 			done
 
-			[ -n "$old_subnets" ] || ACTION=remove ZONE="$z" INTERFACE="$iface" DEVICE="$ifname" /sbin/hotplug-call firewall
+			[ -n "$old_subnets" ] || {
+				fw__uci_state_del "${z}_networks" "$iface"
+				env -i ACTION=remove ZONE="$z" INTERFACE="$iface" DEVICE="$ifname" /sbin/hotplug-call firewall
+			}
 		done
 
 		local old_aliases
@@ -111,8 +132,6 @@ fw_configure_interface() {
 		uci_revert_state firewall core "${iface}_ifname"
 		uci_revert_state firewall core "${iface}_subnets"
 		uci_revert_state firewall core "${iface}_aliases"
-		uci_revert_state firewall core "${iface}_masq_src"
-		uci_revert_state firewall core "${iface}_masq_dest"
 	}
 
 	[ "$action" == del ] && return
@@ -146,26 +165,23 @@ fw_configure_interface() {
 	}
 
 	local new_zones=
-	local new_masq_src=
-	local new_masq_dest=
 	load_zone() {
 		fw_config_get_zone "$1"
 		list_contains zone_network "$iface" || return
 
 		fw_log info "adding $iface ($ifname${aliasnet:+ alias $aliasnet}) to zone $zone_name"
-		fw__do_rules add ${zone_name} "$ifname" "$aliasnet" "$zone_masq_src" "$zone_masq_dest"
+		fw__do_rules add ${zone_name} "$ifname" "$aliasnet"
 		append new_zones $zone_name
-		append new_masq_src "$zone_masq_src"
-		append new_masq_dest "$zone_masq_dest"
 
-		[ -n "$aliasnet" ] || ACTION=add ZONE="$zone_name" INTERFACE="$iface" DEVICE="$ifname" /sbin/hotplug-call firewall
+		[ -n "$aliasnet" ] || {
+			fw__uci_state_add "${zone_name}_networks" "${zone_network}"
+			env -i ACTION=add ZONE="$zone_name" INTERFACE="$iface" DEVICE="$ifname" /sbin/hotplug-call firewall
+		}
 	}
 	config_foreach load_zone zone
 
 	uci_set_state firewall core "${iface}_zone" "$new_zones"
 	uci_set_state firewall core "${iface}_ifname" "$ifname"
-	uci_set_state firewall core "${iface}_masq_src" "$new_masq_src"
-	uci_set_state firewall core "${iface}_masq_dest" "$new_masq_dest"
 }
 
 fw_sysctl_interface() {