From a83c9611b4ea63ebe1432fad05593f23ae1d1f6b Mon Sep 17 00:00:00 2001
From: Mark Wooding <mdw@distorted.org.uk>
Date: Fri, 8 Jun 2012 01:28:45 +0100
Subject: [PATCH] radius.m4: Handy ipset hook for ad-hoc safe/unstrusted
 exceptions.

---
 radius.m4 | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/radius.m4 b/radius.m4
index 4bf4cea..ecf64b7 100644
--- a/radius.m4
+++ b/radius.m4
@@ -53,6 +53,18 @@ dnsresolver inbound
 run iptables -A inbound -j ACCEPT \
 	-p $proto_ipv6 -s 216.66.80.26
 
+## Permitted special forwarding.
+makeset fwd-allow-http nethash || :
+iptables -A fwd-spec-nofrag -j ACCEPT \
+	-m set --match-set fwd-allow-http dst \
+	-p tcp --destination-port $port_http \
+	-m mark --mark $to_untrusted/$MASK_TO
+iptables -A fwd-spec-nofrag -j ACCEPT \
+	-m set --match-set fwd-allow-http src \
+	-p tcp --destination-port $port_http \
+	-m mark --mark $from_untrusted/$MASK_FROM \
+	-m state --state ESTABLISHED
+
 ## NAT for RFC1918 addresses.
 for i in PREROUTING OUTPUT POSTROUTING; do
   run iptables -t nat -P $i ACCEPT 2>/dev/null || :
-- 
2.11.0