diff options
| author |   Tom Herbert <therbert@google.com> | 2014-08-22 13:34:30 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-08-24 18:09:24 -0700 |
| commit | 149d0774a729497c6a876260d3884826088724b6 (patch) | |
| tree | 92321882340edcbbfce97bab3ae38574d583d692 /net/ipv4/tcp_offload.c | |
| parent | gre: call skb_gro_checksum_simple_validate (diff) | |
| download | wireguard-linux-149d0774a729497c6a876260d3884826088724b6.tar.xz wireguard-linux-149d0774a729497c6a876260d3884826088724b6.zip | |
tcp: Call skb_gro_checksum_validate
In tcp[64]_gro_receive call skb_gro_checksum_validate to validate TCP
checksum in the gro context.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_offload.c')
| -rw-r--r-- | net/ipv4/tcp_offload.c | 27 |
1 files changed, 3 insertions, 24 deletions
diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c index bc1b83cb8309..72912533a191 100644 --- a/net/ipv4/tcp_offload.c +++ b/net/ipv4/tcp_offload.c @@ -288,35 +288,14 @@ static int tcp_v4_gso_send_check(struct sk_buff *skb) static struct sk_buff **tcp4_gro_receive(struct sk_buff **head, struct sk_buff *skb) { - /* Use the IP hdr immediately proceeding for this transport */ - const struct iphdr *iph = skb_gro_network_header(skb); - __wsum wsum; - /* Don't bother verifying checksum if we're going to flush anyway. */ - if (NAPI_GRO_CB(skb)->flush) - goto skip_csum; - - wsum = NAPI_GRO_CB(skb)->csum; - - switch (skb->ip_summed) { - case CHECKSUM_NONE: - wsum = skb_checksum(skb, skb_gro_offset(skb), skb_gro_len(skb), - 0); - - /* fall through */ - - case CHECKSUM_COMPLETE: - if (!tcp_v4_check(skb_gro_len(skb), iph->saddr, iph->daddr, - wsum)) { - skb->ip_summed = CHECKSUM_UNNECESSARY; - break; - } - + if (!NAPI_GRO_CB(skb)->flush && + skb_gro_checksum_validate(skb, IPPROTO_TCP, + inet_gro_compute_pseudo)) { NAPI_GRO_CB(skb)->flush = 1; return NULL; } -skip_csum: return tcp_gro_receive(head, skb); } |