-if [ "$ACTION" = "add" ] && [ "$INTERFACE" = "wan" ]; then
- pr=`uci get freifunk-policyrouting.pr.enable`
- strict=`uci get freifunk-policyrouting.pr.strict`
- zones=`uci get freifunk-policyrouting.pr.zones`
- [ -f /proc/net/ipv6_route ] && has_ipv6=1
- if [ $pr = "1" ]; then
-
- # The wan device name
- if [ -n "`uci -p /var/state get network.wan.ifname`" ]; then
- wandev=`uci -p /var/state get network.wan.ifname`
- else
- wandev=`uci -p /var/state get network.wan.device`
- fi
-
- iptables -t mangle -D PREROUTING -j prerouting_policy > /dev/null 2>&1
- iptables -t mangle -F prerouting_policy > /dev/null 2>&1
- iptables -t mangle -N prerouting_policy > /dev/null 2>&1
- iptables -t mangle -I PREROUTING -j prerouting_policy > /dev/null 2>&1
- if [ "$has_ipv6" = 1 ]; then
- ip6tables -t mangle -D PREROUTING -j prerouting_policy > /dev/null 2>&1
- ip6tables -t mangle -F prerouting_policy > /dev/null 2>&1
- ip6tables -t mangle -N prerouting_policy > /dev/null 2>&1
- ip6tables -t mangle -I PREROUTING -j prerouting_policy > /dev/null 2>&1
- fi
-
- # If no route is in table olsr-default, then usually the hosts local default route is used.
- # If set to strict then we add a filter which prevents this
- if [ "$strict" == "1" ]; then
- ln=$(( `iptables -L FORWARD -v --line-numbers | grep -m 1 reject | awk {' print $1 '}` - 1 ))
- if [ ! $ln -gt 0 ]; then
- ln=1
- fi
- if [ -z "`iptables -L |grep 'Chain forward_policy'`" ]; then
- iptables -N forward_policy
- fi
- if [ -z "`iptables -L FORWARD -v |grep forward_policy`" ]; then
- iptables -I FORWARD $ln -m mark --mark 1 -j forward_policy
- fi
- iptables -F forward_policy
- iptables -I forward_policy -o $wandev -j REJECT --reject-with icmp-net-prohibited
-
-
- if [ "$has_ipv6" = 1 ]; then
- ln=$(( `ip6tables -L FORWARD -v --line-numbers | grep -m 1 reject | awk {' print $1 '}` - 1 ))
- if [ ! $ln -gt 0 ]; then
- ln=1
- fi
- if [ -z "`ip6tables -L |grep 'Chain forward_policy'`" ]; then
- ip6tables -N forward_policy
- fi
- if [ -z "`ip6tables -L FORWARD -v |grep forward_policy`" ]; then
- ip6tables -I FORWARD $ln -m mark --mark 1 -j forward_policy
- fi
- ip6tables -F forward_policy
- ip6tables -I forward_policy -o $wandev -j REJECT
- fi
- fi
-
- # set mark 1 for all packets coming in via enabled zones
- for i in $zones; do
- # find out which interfaces belong to this zone
- zone=`uci show firewall |grep "name=$i" |awk {' FS="."; print $1"."$2 '}`
- interfaces=`uci get $zone.network`
- if [ "$interfaces" == "" ]; then
- interfaces=$i
- fi
- for int in $interfaces; do
- if [ "`uci -q get network.$int.type`" == "bridge" ]; then
- dev="br-$int"
- else
- if [ -n "`uci -p /var/state get network.$int.ifname`" ]; then
- dev=`uci -p /var/state get network.$int.ifname`
- else
- dev=`uci -p /var/state get network.$int.device`
- fi
- fi
- logger -t policyrouting "Add mark 1 to packages coming in via interface $dev"
- iptables -t mangle -I prerouting_policy -i $dev -j MARK --set-mark 1
- if [ "$has_ipv6" = 1 ]; then
- ip6tables -t mangle -I prerouting_policy -i $dev -j MARK --set-mark 1
- fi
- done
- done
- else
- # Cleanup policy routing stuff that might be lingering around
- if [ -n "`iptables -t mangle -L PREROUTING |grep _policy`" ]; then
- logger -t policyrouting "Delete prerouting_policy chain in table mangle (IPv4)"
- iptables -t mangle -D PREROUTING -j prerouting_policy
- iptables -t mangle -F prerouting_policy
- iptables -t mangle -X prerouting_policy
- fi
- if [ -n "`iptables -L FORWARD |grep forward_policy`" ]; then
- logger -t policyrouting "Delete strict forwarding rules (IPv4)"
- iptables -D FORWARD -m mark --mark 1 -j forward_policy
- iptables -F forward_policy
- iptables -X forward_policy
- fi
-
- if [ "$has_ipv6" = 1 ]; then
- if [ -n "`ip6tables -t mangle -L PREROUTING |grep _policy`" ]; then
- logger -t policyrouting "Delete prerouting_policy chain in table mangle (IPv6)"
- ip6tables -t mangle -D PREROUTING -j prerouting_policy
- ip6tables -t mangle -F prerouting_policy
- ip6tables -t mangle -X prerouting_policy
- fi
- if [ -n "`ip6tables -L FORWARD |grep forward_policy`" ]; then
- logger -t policyrouting "Delete strict forwarding rules (IPv6)"
- ip6tables -D FORWARD -m mark --mark 1 -j forward_policy
- ip6tables -F forward_policy
- ip6tables -X forward_policy
- fi
- fi
- logger -t policyrouting "All firewall rules for policyrouting removed."
- fi
-fi
-