mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-24 07:01:44 +02:00
[package] firewall: initialize dest_port with src_dport if omitted in redirect sections to narrow
down corresponding forward rules to the actual target ports - thanks Niels Boehm! (#6249) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18617 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
jow
parent
59008615d8
commit
9cdb777d0c
@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
|
||||
PKG_NAME:=firewall
|
||||
|
||||
PKG_VERSION:=1
|
||||
PKG_RELEASE:=8
|
||||
PKG_RELEASE:=9
|
||||
|
||||
include $(INCLUDE_DIR)/package.mk
|
||||
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
#!/bin/sh
|
||||
#!/bin/sh
|
||||
# Copyright (C) 2008 John Crispin <blogic@openwrt.org>
|
||||
|
||||
. /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
|
||||
@ -90,8 +90,8 @@ 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"
|
||||
@ -113,8 +113,8 @@ 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"
|
||||
@ -160,17 +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
|
||||
@ -197,7 +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 $syn_burst
|
||||
|
||||
|
||||
echo "Adding custom chains"
|
||||
fw_custom_chains
|
||||
|
||||
@ -253,7 +253,7 @@ fw_zone() {
|
||||
}
|
||||
|
||||
fw_rule() {
|
||||
local src
|
||||
local src
|
||||
local src_ip
|
||||
local src_mac
|
||||
local src_port
|
||||
@ -287,7 +287,7 @@ fw_rule() {
|
||||
dest_port_last=${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
|
||||
@ -303,7 +303,7 @@ fw_rule() {
|
||||
${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
|
||||
@ -340,7 +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
|
||||
@ -351,7 +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 "$src_port_last" ] && { \
|
||||
@ -362,7 +362,7 @@ fw_redirect() {
|
||||
[ "$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" ] && { \
|
||||
@ -384,7 +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
|
||||
@ -418,7 +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
|
||||
|
||||
Loading…
Reference in New Issue
Block a user