diff options
| author | Patrick McHardy <kaber@trash.net> | 2005-05-03 17:23:50 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2005-05-03 17:23:50 -0400 |
| commit | 31da185d8162ae0f30a13ed945f1f4d28d158133 (patch) | |
| tree | fd9cefbc2f8d8e95786a3a23858d3649605ad148 /net | |
| parent | b43309578477ff3271945d4efb920f558a309b4a (diff) | |
[NETFILTER]: Don't checksum CHECKSUM_UNNECESSARY skbs in TCP connection tracking
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/netfilter/ip_conntrack_proto_tcp.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c index 2b87c1974be6..721ddbf522b4 100644 --- a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c +++ b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c | |||
| @@ -819,6 +819,7 @@ static int tcp_error(struct sk_buff *skb, | |||
| 819 | */ | 819 | */ |
| 820 | /* FIXME: Source route IP option packets --RR */ | 820 | /* FIXME: Source route IP option packets --RR */ |
| 821 | if (hooknum == NF_IP_PRE_ROUTING | 821 | if (hooknum == NF_IP_PRE_ROUTING |
| 822 | && skb->ip_summed != CHECKSUM_UNNECESSARY | ||
| 822 | && csum_tcpudp_magic(iph->saddr, iph->daddr, tcplen, IPPROTO_TCP, | 823 | && csum_tcpudp_magic(iph->saddr, iph->daddr, tcplen, IPPROTO_TCP, |
| 823 | skb->ip_summed == CHECKSUM_HW ? skb->csum | 824 | skb->ip_summed == CHECKSUM_HW ? skb->csum |
| 824 | : skb_checksum(skb, iph->ihl*4, tcplen, 0))) { | 825 | : skb_checksum(skb, iph->ihl*4, tcplen, 0))) { |