[package] firewall:
authorJo-Philipp Wich <jow@openwrt.org>
Wed, 6 Jul 2011 22:10:46 +0000 (22:10 +0000)
committerJo-Philipp Wich <jow@openwrt.org>
Wed, 6 Jul 2011 22:10:46 +0000 (22:10 +0000)
- solve scoping issues when multiple values are used, thanks Daniel Dickinson
- ignore src_port/dest_port for proto icmp rules, ignore icmp_type for non-icmp rules
- properly handle icmp when proto is given in numerical form (1, 58)
- support negated icmp types

SVN-Revision: 27500

package/firewall/Makefile
package/firewall/files/lib/core_redirect.sh
package/firewall/files/lib/core_rule.sh
package/firewall/files/lib/fw.sh

index 25c1100..50b916a 100644 (file)
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=firewall
 
 PKG_VERSION:=2
-PKG_RELEASE:=28
+PKG_RELEASE:=29
 
 include $(INCLUDE_DIR)/package.mk
 
index 0b8030d..a6245fa 100644 (file)
@@ -91,15 +91,15 @@ fw_load_redirect() {
        fw_get_negation destports '--dport' "$destports"
 
        [ "$redirect_proto" == "tcpudp" ] && redirect_proto="tcp udp"
-       for redirect_proto in $redirect_proto; do
-               fw_get_negation redirect_proto '-p' "$redirect_proto"
-               for redirect_src_mac in ${redirect_src_mac:-""}; do
-                       fw_get_negation redirect_src_mac '--mac-source' "$redirect_src_mac"
+       local pr; for pr in $redirect_proto; do
+               fw_get_negation pr '-p' "$pr"
+               local sm; for sm in ${redirect_src_mac:-""}; do
+                       fw_get_negation sm '--mac-source' "$sm"
                        fw add $mode n $natchain $redirect_target + \
                                { $redirect_src_ip $redirect_dest_ip } { \
                                $srcaddr $srcdaddr $redirect_proto \
                                $srcports $srcdports \
-                               ${redirect_src_mac:+-m mac $redirect_src_mac} \
+                               ${sm:+-m mac $sm} \
                                $natopt $nataddr${natports:+:$natports} \
                                $redirect_options \
                        }
index 5538159..0a25fcd 100644 (file)
@@ -65,32 +65,28 @@ fw_load_rule() {
        fw_get_negation src_spec '-s' "${rule_src_ip:+$rule_src_ip/$rule_src_ip_prefixlen}"
        fw_get_negation dest_spec '-d' "${rule_dest_ip:+$rule_dest_ip/$rule_dest_ip_prefixlen}"
 
-       local rule_src_port_copy
-       local rule_dest_port_copy
-
        [ "$rule_proto" == "tcpudp" ] && rule_proto="tcp udp"
-       rule_src_port_copy="$rule_src_port"
-       rule_dest_port_copy="$rule_dest_port"
-       for rule_proto in $rule_proto; do
-               rule_src_port="$rule_src_port_copy"
-               rule_dest_port="$rule_dest_port_copy"
-               fw_get_negation rule_proto '-p' "$rule_proto"
-               for rule_src_port in ${rule_src_port:-""}; do
-                       fw_get_port_range rule_src_port $rule_src_port
-                       fw_get_negation rule_src_port '--sport' "$rule_src_port"
-                       for rule_dest_port in ${rule_dest_port:-""}; do
-                               fw_get_port_range rule_dest_port $rule_dest_port
-                               fw_get_negation rule_dest_port '--dport' "$rule_dest_port"
-                               for rule_src_mac in ${rule_src_mac:-""}; do
-                                       fw_get_negation rule_src_mac '--mac-source' "$rule_src_mac"
-                                       for rule_icmp_type in ${rule_icmp_type:-""}; do
-                                               [ "$rule_proto" = "-p icmp" ] || rule_icmp_type=""
+       local pr; for pr in $rule_proto; do
+               fw_get_negation pr '-p' "$pr"
+               local sp; for sp in ${rule_src_port:-""}; do
+                       fw_get_port_range sp $sp
+                       fw_get_negation sp '--sport' "$sp"
+                       local dp; for dp in ${rule_dest_port:-""}; do
+                               fw_get_port_range dp $dp
+                               fw_get_negation dp '--dport' "$dp"
+                               local sm; for sm in ${rule_src_mac:-""}; do
+                                       fw_get_negation sm '--mac-source' "$sm"
+                                       local it; for it in ${rule_icmp_type:-""}; do
+                                               fw_get_negation it '--icmp-type' "$it"
+                                               case "$pr" in
+                                                       *" icmp"|*" icmpv6"|*" 1"|*" 58") sp=""; dp="" ;;
+                                                       *) it="" ;;
+                                               esac
                                                fw add $mode $table $chain $target + \
                                                        { $rule_src_ip $rule_dest_ip } { \
-                                                       $src_spec $dest_spec $rule_proto \
-                                                       $rule_src_port $rule_dest_port \
-                                                       ${rule_src_mac:+-m mac $rule_src_mac} \
-                                                       ${rule_icmp_type:+--icmp-type $rule_icmp_type} \
+                                                       $src_spec $dest_spec \
+                                                       $pr $sp $dp $it \
+                                                       ${sm:+-m mac $sm} \
                                                        ${rule_limit:+-m limit --limit $rule_limit \
                                                                ${rule_limit_burst:+--limit-burst $rule_limit_burst}} \
                                                        $rule_extra \
index 647bcd6..a13eb7e 100644 (file)
@@ -166,7 +166,7 @@ fw__exec() { # <action> <family> <table> <chain> <target> <position> { <rules> }
        while [ $# -gt 1 ]; do
                # special parameter handling
                case "$1:$2" in
-                       -p:icmp*|--protocol:icmp*)
+                       -p:icmp*|-p:1|-p:58|--protocol:icmp*|--protocol:1|--protocol:58)
                                [ "$app" = ip6tables ] && \
                                        cmdline="$cmdline -p icmpv6" || \
                                        cmdline="$cmdline -p icmp"