linux-kernel - [PATCH] IPVS : bugfix for ICMPv6 checksum calculation

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Message-ID: <AANLkTimQSppX5HzBoAcU73+7odFBJ8jXHBtszBO+8LVm@mail.gmail.com>
Date:	Thu, 12 Aug 2010 09:39:15 +0800
From:	xiaoyu Du <tingsrain@...il.com>
To:	linux-kernel@...r.kernel.org, Simon Horman <horms@...ge.net.au>,
	lvs-devel@...r.kernel.org
Subject: [PATCH] IPVS : bugfix for ICMPv6 checksum calculation

Hi:

This patch correct the ICMPv6 checksum calculation when IPv6 vs is used.

Signed-off-by: Xiaoyu Du <tingsrain@...il.com>
---
 net/netfilter/ipvs/ip_vs_core.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 4f8ddba..124a1ae 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -638,8 +638,12 @@ void ip_vs_nat_icmp_v6(struct sk_buff *skb,
struct ip_vs_protocol *pp,

 	/* And finally the ICMP checksum */
 	icmph->icmp6_cksum = 0;
-	/* TODO IPv6: is this correct for ICMPv6? */
 	ip_vs_checksum_complete(skb, icmp_offset);
+	icmph->icmp6_cksum = csum_ipv6_magic(&iph->saddr,
+			&iph->daddr,
+			skb->len - icmp_offset, IPPROTO_ICMPV6,
+			skb->csum);
+
 	skb->ip_summed = CHECKSUM_UNNECESSARY;

 	if (inout)
--
--
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