[package] firewall: fix fw__uci_state_del() procedure (#11132)

[openwrt.git] / 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 ed6a4b1..3d67184 100644 (file)
--- a/package/firewall/files/lib/core_interface.sh
+++ b/package/firewall/files/lib/core_interface.sh
@@ -1,25 +1,34 @@
-# Copyright (C) 2009-2010 OpenWrt.org
+# Copyright (C) 2009-2012 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_set_state firewall core $var "${val:+$val }$item"
+       local val="$(uci_get_state firewall core $var)"
+       local e1; for e1 in $item; do
+               local e2; for e2 in $val; do
+                       [ "$e1" = "$e2" ] && e1=""
+               done
+               val="${val:+$val${e1:+ }}$e1"
+       done
+
+       uci_toggle_state firewall core $var "$val"
 }
 
 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_set_state firewall core $var "$val"
+       local rest=""
+       local val="$(uci_get_state firewall core $var)"
+       local e1; for e1 in $val; do
+               local e2; for e2 in $item; do
+                       [ "$e1" = "$e2" ] && e1=""
+               done
+               rest="${rest:+$rest${e1:+ }}$e1"
+       done
+
+       uci_toggle_state firewall core $var "$rest"
 }
 
 fw_configure_interface() {
@@ -87,7 +96,9 @@ fw_configure_interface() {
                fw $action $mode f ${chain}_REJECT reject $ { -o "$ifname" $onet }
                fw $action $mode f ${chain}_REJECT reject $ { -i "$ifname" $inet }
 
-               fw $action $mode f ${chain}_MSSFIX TCPMSS  $ { -o "$ifname" -p tcp --tcp-flags SYN,RST SYN --clamp-mss-to-pmtu $onet }
+               [ "$(uci_get_state firewall core "${zone}_tcpmss")" == 1 ] && \
+                       fw $action $mode m ${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 }
@@ -152,14 +163,14 @@ fw_configure_interface() {
                fw_sysctl_interface $ifname
                fw_callback post interface
 
-               uci_set_state firewall core "${iface}_aliases" "$aliases"
+               uci_toggle_state firewall core "${iface}_aliases" "$aliases"
        } || {
                local subnets=
                config_get subnets core "${iface}_subnets"
                append subnets "$aliasnet"
 
                config_set core "${iface}_subnets" "$subnets"
-               uci_set_state firewall core "${iface}_subnets" "$subnets"
+               uci_toggle_state firewall core "${iface}_subnets" "$subnets"
        }
 
        local new_zones=
@@ -178,8 +189,8 @@ fw_configure_interface() {
        }
        config_foreach load_zone zone
 
-       uci_set_state firewall core "${iface}_zone" "$new_zones"
-       uci_set_state firewall core "${iface}_ifname" "$ifname"
+       uci_toggle_state firewall core "${iface}_zone" "$new_zones"
+       uci_toggle_state firewall core "${iface}_ifname" "$ifname"
 }
 
 fw_sysctl_interface() {