netdev - [PATCH V4 2/7] ipvs: IPv6 extend ICMPv6 handling for future types

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Message-ID: <20120926120558.24804.98621.stgit@dragon>
Date:	Wed, 26 Sep 2012 14:06:11 +0200
From:	Jesper Dangaard Brouer <brouer@...hat.com>
To:	Hans Schillstrom <hans@...illstrom.com>,
	Hans Schillstrom <hans.schillstrom@...csson.com>,
	netdev@...r.kernel.org, Pablo Neira Ayuso <pablo@...filter.org>,
	lvs-devel@...r.kernel.org, Julian Anastasov <ja@....bg>
Cc:	Jesper Dangaard Brouer <brouer@...hat.com>,
	"Patrick McHardy" <kaber@...sh.net>, Thomas Graf <tgraf@...g.ch>,
	Wensong Zhang <wensong@...ux-vs.org>,
	netfilter-devel@...r.kernel.org, Simon Horman <horms@...ge.net.au>
Subject: [PATCH V4 2/7] ipvs: IPv6 extend ICMPv6 handling for future types

Extend handling of ICMPv6, to all none Informational Messages
(via ICMPV6_INFOMSG_MASK).  This actually only extend our handling to
type ICMPV6_PARAMPROB (Parameter Problem), and future types.

Signed-off-by: Jesper Dangaard Brouer <brouer@...hat.com>

---
This change have been pulled out the frag handling patch
as it was not related to IPv6 frag handling.

 net/netfilter/ipvs/ip_vs_core.c |    8 ++------
 1 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 4edb654..ebd105c 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -950,9 +950,7 @@ static int ip_vs_out_icmp_v6(struct sk_buff *skb, int *related,
 	 * this means that some packets will manage to get a long way
 	 * down this stack and then be rejected, but that's life.
 	 */
-	if ((ic->icmp6_type != ICMPV6_DEST_UNREACH) &&
-	    (ic->icmp6_type != ICMPV6_PKT_TOOBIG) &&
-	    (ic->icmp6_type != ICMPV6_TIME_EXCEED)) {
+	if (ic->icmp6_type & ICMPV6_INFOMSG_MASK) {
 		*related = 0;
 		return NF_ACCEPT;
 	}
@@ -1498,9 +1496,7 @@ ip_vs_in_icmp_v6(struct sk_buff *skb, int *related, unsigned int hooknum)
 	 * this means that some packets will manage to get a long way
 	 * down this stack and then be rejected, but that's life.
 	 */
-	if ((ic->icmp6_type != ICMPV6_DEST_UNREACH) &&
-	    (ic->icmp6_type != ICMPV6_PKT_TOOBIG) &&
-	    (ic->icmp6_type != ICMPV6_TIME_EXCEED)) {
+	if (ic->icmp6_type & ICMPV6_INFOMSG_MASK) {
 		*related = 0;
 		return NF_ACCEPT;
 	}

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