X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fsvn-archive%2Farchive.git;a=blobdiff_plain;f=package%2Ffirewall%2Ffiles%2Fuci_firewall.sh;h=478b95c931aa2bdbfd9fcc1eca597ae7689c5415;hp=263a33d153569a0e008c94733583fa86123b820a;hb=a26262f2fcfd331a68e3c6510f5f7285da51265f;hpb=0274d76dcc9c1d14bf231ac8a1a89b976c18067f diff --git a/package/firewall/files/uci_firewall.sh b/package/firewall/files/uci_firewall.sh index 263a33d153..478b95c931 100755 --- a/package/firewall/files/uci_firewall.sh +++ b/package/firewall/files/uci_firewall.sh @@ -1,4 +1,4 @@ -#!/bin/sh +#!/bin/sh # Copyright (C) 2008 John Crispin . /etc/functions.sh @@ -43,12 +43,12 @@ load_policy() { create_zone() { local exists - + [ "$1" == "loopback" ] && return config_get exists $ZONE_LIST $1 [ -n "$exists" ] && return - config_set $ZONE_LIST $1 1 + config_set $ZONE_LIST $1 1 $IPTABLES -N zone_$1 $IPTABLES -N zone_$1_MSSFIX @@ -56,15 +56,15 @@ create_zone() { $IPTABLES -N zone_$1_DROP $IPTABLES -N zone_$1_REJECT $IPTABLES -N zone_$1_forward - $IPTABLES -A zone_$1_forward -j zone_$1_$5 - $IPTABLES -A zone_$1 -j zone_$1_$3 - $IPTABLES -A output -j zone_$1_$4 + [ "$4" ] && $IPTABLES -A output -j zone_$1_$4 $IPTABLES -N zone_$1_nat -t nat $IPTABLES -N zone_$1_prerouting -t nat $IPTABLES -t raw -N zone_$1_notrack [ "$6" == "1" ] && $IPTABLES -t nat -A POSTROUTING -j zone_$1_nat + [ "$7" == "1" ] && $IPTABLES -I FORWARD 1 -j zone_$1_MSSFIX } + addif() { local network="$1" local ifname="$2" @@ -90,12 +90,13 @@ addif() { $IPTABLES -I zone_${zone}_ACCEPT 1 -i "$ifname" -j ACCEPT $IPTABLES -I zone_${zone}_DROP 1 -i "$ifname" -j DROP $IPTABLES -I zone_${zone}_REJECT 1 -i "$ifname" -j reject - $IPTABLES -I zone_${zone}_nat 1 -t nat -o "$ifname" -j MASQUERADE - $IPTABLES -I PREROUTING 1 -t nat -i "$ifname" -j zone_${zone}_prerouting + $IPTABLES -I zone_${zone}_nat 1 -t nat -o "$ifname" -j MASQUERADE + $IPTABLES -I PREROUTING 1 -t nat -i "$ifname" -j zone_${zone}_prerouting $IPTABLES -A forward -i "$ifname" -j zone_${zone}_forward $IPTABLES -t raw -I PREROUTING 1 -i "$ifname" -j zone_${zone}_notrack uci_set_state firewall core "${network}_ifname" "$ifname" uci_set_state firewall core "${network}_zone" "$zone" + ACTION=add ZONE="$zone" INTERFACE="$network" DEVICE="$ifname" /sbin/hotplug-call firewall } delif() { @@ -112,11 +113,12 @@ delif() { $IPTABLES -D zone_${zone}_ACCEPT -i "$ifname" -j ACCEPT $IPTABLES -D zone_${zone}_DROP -i "$ifname" -j DROP $IPTABLES -D zone_${zone}_REJECT -i "$ifname" -j reject - $IPTABLES -D zone_${zone}_nat -t nat -o "$ifname" -j MASQUERADE - $IPTABLES -D PREROUTING -t nat -i "$ifname" -j zone_${zone}_prerouting + $IPTABLES -D zone_${zone}_nat -t nat -o "$ifname" -j MASQUERADE + $IPTABLES -D PREROUTING -t nat -i "$ifname" -j zone_${zone}_prerouting $IPTABLES -D forward -i "$ifname" -j zone_${zone}_forward uci_revert_state firewall core "${network}_ifname" uci_revert_state firewall core "${network}_zone" + ACTION=remove ZONE="$zone" INTERFACE="$network" DEVICE="$ifname" /sbin/hotplug-call firewall } load_synflood() { @@ -158,17 +160,17 @@ fw_defaults() { load_policy "$1" echo 1 > /proc/sys/net/ipv4/tcp_syncookies - for f in /proc/sys/net/ipv4/conf/*/accept_redirects + for f in /proc/sys/net/ipv4/conf/*/accept_redirects do echo 0 > $f done - for f in /proc/sys/net/ipv4/conf/*/accept_source_route + for f in /proc/sys/net/ipv4/conf/*/accept_source_route do echo 0 > $f - done - + done + uci_revert_state firewall core - uci_set_state firewall core "" firewall_state + uci_set_state firewall core "" firewall_state $IPTABLES -P INPUT DROP $IPTABLES -P OUTPUT DROP @@ -195,7 +197,7 @@ fw_defaults() { config_get syn_rate $1 syn_rate config_get syn_burst $1 syn_burst [ "$syn_flood" == "1" ] && load_synflood $syn_rate $syn_burst - + echo "Adding custom chains" fw_custom_chains @@ -216,6 +218,22 @@ fw_defaults() { fw_set_chain_policy FORWARD "$DEF_FORWARD" } +fw_zone_defaults() { + local name + local network + local masq + + config_get name $1 name + config_get network $1 network + config_get_bool masq $1 masq "0" + config_get_bool conntrack $1 conntrack "0" + config_get_bool mtu_fix $1 mtu_fix 0 + + load_policy $1 + [ "$forward" ] && $IPTABLES -A zone_${name}_forward -j zone_${name}_${forward} + [ "$input" ] && $IPTABLES -A zone_${name} -j zone_${name}_${input} +} + fw_zone() { local name local network @@ -225,16 +243,17 @@ fw_zone() { config_get network $1 network config_get_bool masq $1 masq "0" config_get_bool conntrack $1 conntrack "0" + config_get_bool mtu_fix $1 mtu_fix 0 load_policy $1 [ "$conntrack" = "1" -o "$masq" = "1" ] && append CONNTRACK_ZONES "$name" [ -z "$network" ] && network=$name - create_zone "$name" "$network" "$input" "$output" "$forward" "$masq" + create_zone "$name" "$network" "$input" "$output" "$forward" "$masq" "$mtu_fix" fw_custom_chains_zone "$name" } fw_rule() { - local src + local src local src_ip local src_mac local src_port @@ -243,6 +262,7 @@ fw_rule() { local dest_ip local dest_port local proto + local icmp_type local target local ruleset @@ -254,6 +274,7 @@ fw_rule() { config_get dest_ip $1 dest_ip config_get dest_port $1 dest_port config_get proto $1 proto + config_get icmp_type $1 icmp_type config_get target $1 target config_get ruleset $1 ruleset @@ -266,7 +287,7 @@ fw_rule() { dest_port_last=${dest_port#*-} [ "$dest_port_first" -ne "$dest_port_last" ] && { \ dest_port="$dest_port_first:$dest_port_last"; } - + ZONE=input TARGET=$target [ -z "$target" ] && target=DROP @@ -274,14 +295,15 @@ fw_rule() { [ -n "$src" -a -n "$dest" ] && ZONE=zone_${src}_forward [ -n "$dest" ] && TARGET=zone_${dest}_$target add_rule() { - $IPTABLES -I $ZONE 1 \ + $IPTABLES -A $ZONE \ ${proto:+-p $proto} \ + ${icmp_type:+--icmp-type $icmp_type} \ ${src_ip:+-s $src_ip} \ ${src_port:+--sport $src_port} \ ${src_mac:+-m mac --mac-source $src_mac} \ ${dest_ip:+-d $dest_ip} \ ${dest_port:+--dport $dest_port} \ - -j $TARGET + -j $TARGET } [ "$proto" == "tcpudp" -o -z "$proto" ] && { proto=tcp @@ -300,11 +322,9 @@ fw_forwarding() { config_get src $1 src config_get dest $1 dest - config_get_bool mtu_fix $1 mtu_fix 0 [ -n "$src" ] && z_src=zone_${src}_forward || z_src=forward [ -n "$dest" ] && z_dest=zone_${dest}_ACCEPT || z_dest=ACCEPT $IPTABLES -I $z_src 1 -j $z_dest - [ "$mtu_fix" -gt 0 -a -n "$dest" ] && $IPTABLES -I $z_src 1 -j zone_${dest}_MSSFIX # propagate masq zone flag find_item "$src" $CONNTRACK_ZONES && append CONNTRACK_ZONES $dest @@ -320,7 +340,7 @@ fw_redirect() { local dest_ip local dest_port dest_port2 local proto - + config_get src $1 src config_get src_ip $1 src_ip config_get src_port $1 src_port @@ -331,7 +351,7 @@ fw_redirect() { config_get proto $1 proto [ -z "$src" -o -z "$dest_ip" ] && { \ echo "redirect needs src and dest_ip"; return ; } - + src_port_first=${src_port%-*} src_port_last=${src_port#*-} [ "$src_port_first" -ne "$src_port_last" ] && { \ @@ -342,7 +362,7 @@ fw_redirect() { [ "$src_dport_first" -ne "$src_dport_last" ] && { \ src_dport="$src_dport_first:$src_dport_last"; } - dest_port2=$dest_port + dest_port2=${dest_port:-$src_dport} dest_port_first=${dest_port2%-*} dest_port_last=${dest_port2#*-} [ "$dest_port_first" -ne "$dest_port_last" ] && { \ @@ -364,7 +384,7 @@ fw_redirect() { ${src_port:+--sport $src_port} \ ${dest_port2:+--dport $dest_port2} \ ${src_mac:+-m mac --mac-source $src_mac} \ - -j ACCEPT + -j ACCEPT } [ "$proto" == "tcpudp" -o -z "$proto" ] && { proto=tcp @@ -398,7 +418,7 @@ fw_custom_chains() { $IPTABLES -N forwarding_rule $IPTABLES -N prerouting_rule -t nat $IPTABLES -N postrouting_rule -t nat - + $IPTABLES -A INPUT -j input_rule $IPTABLES -A OUTPUT -j output_rule $IPTABLES -A FORWARD -j forwarding_rule @@ -441,6 +461,8 @@ fw_init() { config_foreach fw_rule rule echo "Loading includes" config_foreach fw_include include + echo "Loading zone defaults" + config_foreach fw_zone_defaults zone uci_set_state firewall core loaded 1 config_foreach fw_check_notrack zone unset CONFIG_APPEND