IPVS: ICMPv6 checksum calculation

Cc: Xiaoyu Du <tingsrain@gmail.com>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 4f8ddba..69661db 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -637,10 +637,12 @@ 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);
-       skb->ip_summed = CHECKSUM_UNNECESSARY;
+       icmph->icmp6_cksum = ~csum_ipv6_magic(&iph->saddr, &iph->daddr,
+                                             skb->len - icmp_offset,
+                                             IPPROTO_ICMPV6, 0);
+       skb->csum_start = skb_network_header(skb) - skb->head + icmp_offset;
+       skb->csum_offset = offsetof(struct icmp6hdr, icmp6_cksum);
+       skb->ip_summed = CHECKSUM_PARTIAL;
 
        if (inout)
                IP_VS_DBG_PKT(11, pp, skb, (void *)ciph - (void *)iph,