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icmp6: Call skb_checksum_validate

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Use skb_checksum_validate to verify checksum.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2014-05-07 16:52:29 -07:00 committed by David S. Miller
parent 29a96e1f36
commit 39471ac8dd
1 changed files with 5 additions and 16 deletions
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21
net/ipv6/icmp.c
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@ -692,22 +692,11 @@ static int icmpv6_rcv(struct sk_buff *skb)
saddr = &ipv6_hdr(skb)->saddr;
daddr = &ipv6_hdr(skb)->daddr;
/* Perform checksum. */
switch (skb->ip_summed) {
case CHECKSUM_COMPLETE:
if (!csum_ipv6_magic(saddr, daddr, skb->len, IPPROTO_ICMPV6,
skb->csum))
break;
/* fall through */
case CHECKSUM_NONE:
skb->csum = ~csum_unfold(csum_ipv6_magic(saddr, daddr, skb->len,
IPPROTO_ICMPV6, 0));
if (__skb_checksum_complete(skb)) {
LIMIT_NETDEBUG(KERN_DEBUG
"ICMPv6 checksum failed [%pI6c > %pI6c]\n",
saddr, daddr);
goto csum_error;
}
if (skb_checksum_validate(skb, IPPROTO_ICMPV6, ip6_compute_pseudo)) {
LIMIT_NETDEBUG(KERN_DEBUG
"ICMPv6 checksum failed [%pI6c > %pI6c]\n",
saddr, daddr);
goto csum_error;
}
if (!pskb_pull(skb, sizeof(*hdr)))