$IPTABLES -A OUTPUT -j zone_$1_$4
$IPTABLES -N zone_$1_nat -t nat
$IPTABLES -N zone_$1_prerouting -t nat
- [ "$6" == "1" ] && $IPTABLES -t nat -A POSTROUTING -j zone_$2_nat
+ [ "$6" == "1" ] && $IPTABLES -t nat -A POSTROUTING -j zone_$1_nat
}
addif() {
+ local dev
+ config_get dev core $2
+ [ -n "$dev" -a "$dev" != "$1" ] && delif "$dev" "$2"
+ [ -n "$dev" -a "$dev" == "$1" ] && return
logger "adding $1 to firewall zone $2"
$IPTABLES -A INPUT -i $1 -j zone_$2
$IPTABLES -I zone_$2_ACCEPT 1 -o $1 -j ACCEPT
$IPTABLES -I zone_$2_nat 1 -t nat -o $1 -j MASQUERADE
$IPTABLES -I PREROUTING 1 -t nat -i $1 -j zone_$2_prerouting
$IPTABLES -A FORWARD -i $1 -j zone_$2_forward
+ uci_set_state firewall core "$2" "$1"
}
delif() {
$IPTABLES -D zone_$2_nat -t nat -o $1 -j MASQUERADE
$IPTABLES -D PREROUTING -t nat -i $1 -j zone_$2_prerouting
$IPTABLES -D FORWARD -i $1 -j zone_$2_forward
+ uci_revert_state firewall core "$2"
}
load_synflood() {
do
echo 0 > $f
done
+
+ uci_revert_state firewall core
+ uci_set_state firewall core "" firewall_state
$IPTABLES -F
$IPTABLES -t nat -F
local dest_port
local proto
local target
+ local ruleset
config_get src $1 src
config_get src_ip $1 src_ip
[ -z "$target" ] && target=DROP
[ -n "$src" ] && ZONE=zone_$src || ZONE=INPUT
[ -n "$dest" ] && TARGET=zone_${dest}_$target || TARGET=$target
- [ -n "$dest_port" -a -z "$proto" ] && { \
- echo "dport may only be used it proto is defined"; return; }
- $IPTABLES -I $ZONE 1 \
- ${proto:+-p $proto} \
- ${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
+ add_rule() {
+ $IPTABLES -I $ZONE 1 \
+ ${proto:+-p $proto} \
+ ${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 $TARGET
+ }
+ [ "$proto" == "tcpudp" -o -z "$proto" ] && {
+ proto=tcp
+ add_rule
+ proto=udp
+ add_rule
+ return
+ }
+ add_rule
}
fw_forwarding() {
local src_dport
local src_mac
local dest_ip
- local dest_port
- local protocol
+ local dest_port dest_port2
+ local proto
config_get src $1 src
config_get src_ip $1 src_ip
config_get src_mac $1 src_mac
config_get dest_ip $1 dest_ip
config_get dest_port $1 dest_port
- config_get protocol $1 protocol
+ config_get proto $1 proto
[ -z "$src" -o -z "$dest_ip" ] && { \
echo "redirect needs src and dest_ip"; return ; }
- [ -n "$dest_port" -a -z "$protocol" ] && { \
- echo "dport may only be used it proto is defined"; return; }
- $IPTABLES -A zone_${src}_prerouting -t nat \
- ${protocol:+-p $protocol} \
- ${src_ip:+-s $srcdip} \
- ${src_port:+--sport $src_port} \
- ${src_dport:+--dport $src_dport} \
- ${src_mac:+-m mac --mac-source $src_mac} \
- -j DNAT --to-destination $dest_ip${dest_port:+:$dest_port}
- $IPTABLES -I zone_${src}_forward 1 \
- ${protocol:+-p $protocol} \
- -d $dest_ip \
- ${src_ip:+-s $srcdip} \
- ${src_port:+--sport $src_port} \
- ${dest_port:+--dport $dest_port} \
- ${src_mac:+-m mac --mac-source $src_mac} \
- -j ACCEPT
+
+ src_port_first=${src_port%-*}
+ src_port_last=${src_port#*-}
+ [ "$src_port_first" -ne "$src_port_last" ] && { \
+ src_port="$src_port_first:$src_port_last"; }
+
+ src_dport_first=${src_dport%-*}
+ src_dport_last=${src_dport#*-}
+ [ "$src_dport_first" -ne "$src_dport_last" ] && { \
+ src_dport="$src_dport_first:$src_dport_last"; }
+
+ dest_port2=$dest_port
+ dest_port_first=${dest_port2%-*}
+ dest_port_last=${dest_port2#*-}
+ [ "$dest_port_first" -ne "$dest_port_last" ] && { \
+ dest_port2="$dest_port_first:$dest_port_last"; }
+
+ add_rule() {
+ $IPTABLES -A zone_${src}_prerouting -t nat \
+ ${proto:+-p $proto} \
+ ${src_ip:+-s $src_ip} \
+ ${src_port:+--sport $src_port} \
+ ${src_dport:+--dport $src_dport} \
+ ${src_mac:+-m mac --mac-source $src_mac} \
+ -j DNAT --to-destination $dest_ip${dest_port:+:$dest_port}
+
+ $IPTABLES -I zone_${src}_forward 1 \
+ ${proto:+-p $proto} \
+ -d $dest_ip \
+ ${src_ip:+-s $src_ip} \
+ ${src_port:+--sport $src_port} \
+ ${dest_port2:+--dport $dest_port2} \
+ ${src_mac:+-m mac --mac-source $src_mac} \
+ -j ACCEPT
+ }
+ [ "$proto" == "tcpudp" -o -z "$proto" ] && {
+ proto=tcp
+ add_rule
+ proto=udp
+ add_rule
+ return
+ }
+ add_rule
}
fw_include() {
(ACTION="ifup" INTERFACE="$1" . /etc/hotplug.d/iface/20-firewall)
}
+fw_custom_chains() {
+ $IPTABLES -N input_rule
+ $IPTABLES -N output_rule
+ $IPTABLES -N forwarding_rule
+ $IPTABLES -N prerouting_rule -t nat
+ $IPTABLES -N postrouting_rule -t nat
+ $IPTABLES -N input_wan
+ $IPTABLES -N forwarding_wan
+ $IPTABLES -N prerouting_wan -t nat
+
+ $IPTABLES -A INPUT -j input_rule
+ $IPTABLES -A OUTPUT -j output_rule
+ $IPTABLES -A FORWARD -j forwarding_rule
+ $IPTABLES -A PREROUTING -t nat -j prerouting_rule
+ $IPTABLES -A POSTROUTING -t nat -j postrouting_rule
+ $IPTABLES -A zone_wan -j input_wan
+ $IPTABLES -A zone_wan_forward -j forwarding_wan
+ $IPTABLES -A zone_wan_prerouting -t nat -j prerouting_wan
+}
+
fw_init() {
echo "Loading defaults"
config_foreach fw_defaults defaults
config_foreach fw_forwarding forwarding
echo "Loading redirects"
config_foreach fw_redirect redirect
+ echo "Adding custom chains"
+ fw_custom_chains
echo "Loading includes"
config_foreach fw_include include
-
- uci_set_state firewall core "" firewall_state
uci_set_state firewall core loaded 1
unset CONFIG_APPEND
config_load network
$IPTABLES -P INPUT ACCEPT
$IPTABLES -P OUTPUT ACCEPT
$IPTABLES -P FORWARD ACCEPT
+ uci_revert_state firewall core
}
projects / openwrt / svn-archive / archive.git / blobdiff