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| author | samanthakumar <samanthakumar@google.com> | 2016-04-05 12:41:15 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-05 16:29:37 -0400 |
| commit | e6afc8ace6dd5cef5e812f26c72579da8806f5ac (patch) | |
| tree | ff84943f8c480deb208fba4b768e911f0c1090bf /include/net/udp.h | |
| parent | b9bb53f3836f4eb2bdeb3447be11042bd29c2408 (diff) | |
| download | lwn-e6afc8ace6dd5cef5e812f26c72579da8806f5ac.tar.gz lwn-e6afc8ace6dd5cef5e812f26c72579da8806f5ac.zip | |
udp: remove headers from UDP packets before queueing
Remove UDP transport headers before queueing packets for reception.
This change simplifies a follow-up patch to add MSG_PEEK support.
Signed-off-by: Sam Kumar <samanthakumar@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/udp.h')
| -rw-r--r-- | include/net/udp.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/udp.h b/include/net/udp.h index d870ec1611c4..a0b0da97164c 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -158,6 +158,15 @@ static inline __sum16 udp_v4_check(int len, __be32 saddr, void udp_set_csum(bool nocheck, struct sk_buff *skb, __be32 saddr, __be32 daddr, int len); +static inline void udp_csum_pull_header(struct sk_buff *skb) +{ + if (skb->ip_summed == CHECKSUM_NONE) + skb->csum = csum_partial(udp_hdr(skb), sizeof(struct udphdr), + skb->csum); + skb_pull_rcsum(skb, sizeof(struct udphdr)); + UDP_SKB_CB(skb)->cscov -= sizeof(struct udphdr); +} + struct sk_buff **udp_gro_receive(struct sk_buff **head, struct sk_buff *skb, struct udphdr *uh); int udp_gro_complete(struct sk_buff *skb, int nhoff); |