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[NET]: Treat CHECKSUM_PARTIAL as CHECKSUM_UNNECESSARY

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When a transmitted packet is looped back directly, CHECKSUM_PARTIAL
maps to the semantics of CHECKSUM_UNNECESSARY.  Therefore we should
treat it as such in the stack.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu
2007-04-09 11:59:39 -07:00
committed by David S. Miller
parent 628592ccdb
commit 604763722c
13 changed files with 29 additions and 28 deletions
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6
net/ipv4/ipvs/ip_vs_core.c
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@@ -681,8 +681,7 @@ static int ip_vs_out_icmp(struct sk_buff **pskb, int *related)
}
/* Ensure the checksum is correct */
if (skb->ip_summed != CHECKSUM_UNNECESSARY &&
ip_vs_checksum_complete(skb, ihl)) {
if (!skb_csum_unnecessary(skb) && ip_vs_checksum_complete(skb, ihl)) {
/* Failed checksum! */
IP_VS_DBG(1, "Forward ICMP: failed checksum from %d.%d.%d.%d!\n",
NIPQUAD(iph->saddr));
@@ -921,8 +920,7 @@ ip_vs_in_icmp(struct sk_buff **pskb, int *related, unsigned int hooknum)
verdict = NF_DROP;
/* Ensure the checksum is correct */
if (skb->ip_summed != CHECKSUM_UNNECESSARY &&
ip_vs_checksum_complete(skb, ihl)) {
if (!skb_csum_unnecessary(skb) && ip_vs_checksum_complete(skb, ihl)) {
/* Failed checksum! */
IP_VS_DBG(1, "Incoming ICMP: failed checksum from %d.%d.%d.%d!\n",
NIPQUAD(iph->saddr));