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| author | KOVACS Krisztian <hidden@sch.bme.hu> | 2008-10-07 12:38:32 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-10-07 12:38:32 -0700 |
| commit | 607c4aaf03041c8bd81555a0218050c0f895088e (patch) | |
| tree | 130cfcfca74eccb135592a883000a319e94cd7e2 /net/ipv4/udp.c | |
| parent | 9a1f27c48065ce713eb47f2fd475b717e63ef239 (diff) | |
| download | linux-607c4aaf03041c8bd81555a0218050c0f895088e.tar.gz linux-607c4aaf03041c8bd81555a0218050c0f895088e.tar.bz2 linux-607c4aaf03041c8bd81555a0218050c0f895088e.zip | |
inet: Add udplib_lookup_skb() helpers
To be able to use the cached socket reference in the skb during input
processing we add a new set of lookup functions that receive the skb on
their argument list.
Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index c83d0ef469c9..c7a90b546b21 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -302,6 +302,17 @@ static struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr, return result; } +static inline struct sock *__udp4_lib_lookup_skb(struct sk_buff *skb, + __be16 sport, __be16 dport, + struct hlist_head udptable[]) +{ + const struct iphdr *iph = ip_hdr(skb); + + return __udp4_lib_lookup(dev_net(skb->dst->dev), iph->saddr, sport, + iph->daddr, dport, inet_iif(skb), + udptable); +} + struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport, __be32 daddr, __be16 dport, int dif) { @@ -1208,8 +1219,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[], return __udp4_lib_mcast_deliver(net, skb, uh, saddr, daddr, udptable); - sk = __udp4_lib_lookup(net, saddr, uh->source, daddr, - uh->dest, inet_iif(skb), udptable); + sk = __udp4_lib_lookup_skb(skb, uh->source, uh->dest, udptable); if (sk != NULL) { int ret = udp_queue_rcv_skb(sk, skb); |