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Message-ID: <20120626014226.GB3455@mcafee.com>
Date: Tue, 26 Jun 2012 11:42:26 +1000
From: David McCullough <david_mccullough@...fee.com>
To: <netdev@...r.kernel.org>
CC: David Miller <davem@...emloft.net>
Subject: [PATCH v2] net/ipv6/route.c: packets originating on device match lo
Hi all,
Fix to allow IPv6 packets originating locally to match rules with the "iff"
set to "lo". This allows IPv6 rule matching work the same as it does for
IPv4. From the iproute2 man page:
iif NAME
select the incoming device to match. If the interface is loop‐
back, the rule only matches packets originating from this host.
This means that you may create separate routing tables for for‐
warded and local packets and, hence, completely segregate them.
Cheers,
Davidm
Signed-off-by: David McCullough <david_mccullough@...fee.com>
diff -u -p -r1.1.1.59 route.c
--- linux-3.4/net/ipv6/route.c 21 May 2012 23:15:01 -0000 1.1.1.59
+++ linux-3.4/net/ipv6/route.c 26 Jun 2012 01:41:15 -0000
@@ -931,6 +931,8 @@ struct dst_entry * ip6_route_output(stru
{
int flags = 0;
+ fl6->flowi6_iif = net->loopback_dev->ifindex;
+
if ((sk && sk->sk_bound_dev_if) || rt6_need_strict(&fl6->daddr))
flags |= RT6_LOOKUP_F_IFACE;
--
David McCullough, david_mccullough@...fee.com, Ph:+61 734352815
McAfee - SnapGear http://www.mcafee.com http://www.uCdot.org
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