netdev - [PATCH] bridge: fix forwarding of IPv6

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Message-ID: <20110513125314.66861b31@nehalam>
Date:	Fri, 13 May 2011 12:53:14 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Noah Meyerhans <noahm@...ian.org>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	David Miller <davem@...emloft.net>
Cc:	Ben Hutchings <ben@...adent.org.uk>,
	bridge@...ts.linux-foundation.org, netdev <netdev@...r.kernel.org>
Subject: [PATCH] bridge: fix forwarding of IPv6

The commit 6b1e960fdbd75dcd9bcc3ba5ff8898ff1ad30b6e
    bridge: Reset IPCB when entering IP stack on NF_FORWARD
broke forwarding of IPV6 packets in bridge because it would
call bp_parse_ip_options with an IPV6 packet.

Reported-by: Noah Meyerhans <noahm@...ian.org>
Signed-off-by: Stephen Hemminger <shemminger@...tta.com>

---
Patch against net-next-2.6 but must be applied to net-2.6
and stable as well

--- a/net/bridge/br_netfilter.c	2011-05-13 12:37:30.289646958 -0700
+++ b/net/bridge/br_netfilter.c	2011-05-13 12:38:07.820333938 -0700
@@ -737,7 +737,7 @@ static unsigned int br_nf_forward_ip(uns
 		nf_bridge->mask |= BRNF_PKT_TYPE;
 	}
 
-	if (br_parse_ip_options(skb))
+	if (pf == PF_INET && br_parse_ip_options(skb))
 		return NF_DROP;
 
 	/* The physdev module checks on this */


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