From 27b7784cddaf4d001375b267dfe4c3f739565b2c Mon Sep 17 00:00:00 2001
From: Manuel Munz <freifunk@somakoma.de>
Date: Tue, 5 Jun 2012 22:23:40 +0000
Subject: contrib/freifunk-policyrouting: Almost works now. There is still the
problem that localhost cannot use his own ipv6 gateway, this needs more
investigation
---
.../files/etc/hotplug.d/firewall/24-policyrouting | 46 ++++++++++++++++++++--
1 file changed, 43 insertions(+), 3 deletions(-)
(limited to 'contrib/package/freifunk-policyrouting/files/etc/hotplug.d/firewall')
diff --git a/contrib/package/freifunk-policyrouting/files/etc/hotplug.d/firewall/24-policyrouting b/contrib/package/freifunk-policyrouting/files/etc/hotplug.d/firewall/24-policyrouting
index 014803a7d9..786c5e4ce7 100644
--- a/contrib/package/freifunk-policyrouting/files/etc/hotplug.d/firewall/24-policyrouting
+++ b/contrib/package/freifunk-policyrouting/files/etc/hotplug.d/firewall/24-policyrouting
@@ -2,7 +2,7 @@ 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 [ $pr = "1" ]; then
# The wan device name
@@ -16,6 +16,12 @@ if [ "$ACTION" = "add" ] && [ "$INTERFACE" = "wan" ]; then
iptables -t mangle -F prerouting_policy > /dev/null 2>&1
iptables -t mangle -N prerouting_policy > /dev/null 2>&1
iptables -t mangle -I PREROUTING -j prerouting_policy > /dev/null 2>&1
+ if [ "$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
@@ -32,6 +38,22 @@ if [ "$ACTION" = "add" ] && [ "$INTERFACE" = "wan" ]; then
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 $wandev -j REJECT
+ fi
fi
# set mark 1 for all packets coming in via enabled zones
@@ -54,22 +76,40 @@ if [ "$ACTION" = "add" ] && [ "$INTERFACE" = "wan" ]; then
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 $dev -j MARK --set-mark 1
+ fi
done
done
else
# Cleanup policy routing stuff that might be lingering around
if [ -n "`iptables -t mangle -L PREROUTING |grep _policy`" ]; then
- logger -t policyrouting "Delete prerouting_policy chain in table mangle"
+ logger -t policyrouting "Delete prerouting_policy chain in table mangle (IPv4)"
iptables -t mangle -D PREROUTING -j prerouting_policy
iptables -t mangle -F prerouting_policy
iptables -t mangle -X prerouting_policy
fi
if [ -n "`iptables -L FORWARD |grep forward_policy`" ]; then
- logger -t policyrouting "Delete strict forwarding rules"
+ logger -t policyrouting "Delete strict forwarding rules (IPv4)"
iptables -D FORWARD -m mark --mark 1 -j forward_policy
iptables -F forward_policy
iptables -X forward_policy
fi
+
+ if [ "$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
--
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