. /lib/firewall/uci_firewall.sh
unset ZONE
config_get ifname $INTERFACE ifname
-INTERFACE=$ifname
-[ "$INTERFACE" == "lo" ] && exit 0
+[ "$ifname" == "lo" ] && exit 0
+
load_zones() {
local name
local network
config_get network $1 network
[ -z "$network" ] && network=$name
for n in $network; do
- local ifname
- config_get ifname $n ifname
- list_contains ifname $INTERFACE && {
- list_contains ZONE $name || ZONE="$ZONE $name"
- }
+ [ "$n" = "$INTERFACE" ] && ZONE="$ZONE $name"
done
}
for z in $ZONE; do
local loaded
config_get loaded core loaded
- [ -n "$loaded" ] && addif $INTERFACE $z
+ [ -n "$loaded" ] && addif "$INTERFACE" "$ifname" "$z"
done
}
for z in $ZONE; do
local up
config_get up $z up
- [ "$up" == "1" ] && delif $INTERFACE $z
+ [ "$up" == "1" ] && delif "$INTERFACE" "$ifname" "$z"
done
}
}
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_MSSFIX 1 -o $1 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
- $IPTABLES -I zone_$2_ACCEPT 1 -o $1 -j ACCEPT
- $IPTABLES -I zone_$2_DROP 1 -o $1 -j DROP
- $IPTABLES -I zone_$2_REJECT 1 -o $1 -j reject
- $IPTABLES -I zone_$2_ACCEPT 1 -i $1 -j ACCEPT
- $IPTABLES -I zone_$2_DROP 1 -i $1 -j DROP
- $IPTABLES -I zone_$2_REJECT 1 -i $1 -j reject
- $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"
+ local network="$1"
+ local ifname="$2"
+ local zone="$3"
+
+ local n_if n_zone
+ config_get n_if core "${network}_ifname"
+ config_get n_zone core "${network}_zone"
+ [ -n "$n_zone" ] && {
+ if [ "$n_zone" != "$zone" ]; then
+ delif "$network" "$n_if" "$n_zone"
+ else
+ return
+ fi
+ }
+
+ logger "adding $network ($ifname) to firewall zone $zone"
+ $IPTABLES -A input -i "$ifname" -j zone_${zone}
+ $IPTABLES -I zone_${zone}_MSSFIX 1 -o "$ifname" -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
+ $IPTABLES -I zone_${zone}_ACCEPT 1 -o "$ifname" -j ACCEPT
+ $IPTABLES -I zone_${zone}_DROP 1 -o "$ifname" -j DROP
+ $IPTABLES -I zone_${zone}_REJECT 1 -o "$ifname" -j reject
+ $IPTABLES -I zone_${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
+ $IPTABLES -A forward -i "$ifname" -j zone_${zone}_forward
+ uci_set_state firewall core "${network}_ifname" "$ifname"
+ uci_set_state firewall core "${network}_zone" "$zone"
}
delif() {
- logger "removing $1 from firewall zone $2"
- $IPTABLES -D input -i $1 -j zone_$2
- $IPTABLES -D zone_$2_MSSFIX -o $1 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
- $IPTABLES -D zone_$2_ACCEPT -o $1 -j ACCEPT
- $IPTABLES -D zone_$2_DROP -o $1 -j DROP
- $IPTABLES -D zone_$2_REJECT -o $1 -j reject
- $IPTABLES -D zone_$2_ACCEPT -i $1 -j ACCEPT
- $IPTABLES -D zone_$2_DROP -i $1 -j DROP
- $IPTABLES -D zone_$2_REJECT -i $1 -j reject
- $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"
+ local network="$1"
+ local ifname="$2"
+ local zone="$3"
+
+ logger "removing $network ($ifname) from firewall zone $zone"
+ $IPTABLES -D input -i "$ifname" -j zone_$zone
+ $IPTABLES -D zone_${zone}_MSSFIX -o "$ifname" -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
+ $IPTABLES -D zone_${zone}_ACCEPT -o "$ifname" -j ACCEPT
+ $IPTABLES -D zone_${zone}_DROP -o "$ifname" -j DROP
+ $IPTABLES -D zone_${zone}_REJECT -o "$ifname" -j reject
+ $IPTABLES -D zone_${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
+ $IPTABLES -D forward -i "$ifname" -j zone_${zone}_forward
+ uci_revert_state firewall core "${network}_ifname"
+ uci_revert_state firewall core "${network}_zone"
}
load_synflood() {