diff options
| author | Patrick McHardy <kaber@trash.net> | 2006-08-05 00:58:33 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-22 14:53:54 -0700 |
| commit | 4cf411de49c65140b3c259748629b561c0d3340f (patch) | |
| tree | 71dbc9fbbb0b64e805033665e3653d991abb0f7e /net/ipv4/netfilter/ip_nat_proto_udp.c | |
| parent | 84fa7933a33f806bbbaae6775e87459b1ec584c0 (diff) | |
[NETFILTER]: Get rid of HW checksum invalidation
Update hardware checksums incrementally to avoid breaking GSO.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/netfilter/ip_nat_proto_udp.c')
| -rw-r--r-- | net/ipv4/netfilter/ip_nat_proto_udp.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/net/ipv4/netfilter/ip_nat_proto_udp.c b/net/ipv4/netfilter/ip_nat_proto_udp.c index ec6053fdc86..5da196ae758 100644 --- a/net/ipv4/netfilter/ip_nat_proto_udp.c +++ b/net/ipv4/netfilter/ip_nat_proto_udp.c @@ -113,11 +113,16 @@ udp_manip_pkt(struct sk_buff **pskb, newport = tuple->dst.u.udp.port; portptr = &hdr->dest; } - if (hdr->check) /* 0 is a special case meaning no checksum */ - hdr->check = ip_nat_cheat_check(~oldip, newip, - ip_nat_cheat_check(*portptr ^ 0xFFFF, - newport, - hdr->check)); + + if (hdr->check || (*pskb)->ip_summed == CHECKSUM_PARTIAL) { + hdr->check = nf_proto_csum_update(*pskb, ~oldip, newip, + hdr->check, 1); + hdr->check = nf_proto_csum_update(*pskb, + *portptr ^ 0xFFFF, newport, + hdr->check, 0); + if (!hdr->check) + hdr->check = -1; + } *portptr = newport; return 1; } |