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inet_hashtables: Add inet_lookup_skb helpers

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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: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo 2008-10-07 11:41:57 -07:00 • committed by David S. Miller
parent c7004482e8
commit 9a1f27c480
6 changed files with 31 additions and 14 deletions
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14
include/net/inet_hashtables.h
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@ -16,6 +16,7 @@
#include <linux/interrupt.h>
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <linux/list.h>
#include <linux/slab.h>
@ -28,6 +29,7 @@
#include <net/inet_connection_sock.h>
#include <net/inet_sock.h>
#include <net/sock.h>
#include <net/route.h>
#include <net/tcp_states.h>
#include <net/netns/hash.h>
@ -371,6 +373,18 @@ static inline struct sock *inet_lookup(struct net *net,
return sk;
}
static inline struct sock *__inet_lookup_skb(struct inet_hashinfo *hashinfo,
struct sk_buff *skb,
const __be16 sport,
const __be16 dport)
{
const struct iphdr *iph = ip_hdr(skb);
return __inet_lookup(dev_net(skb->dst->dev), hashinfo,
iph->saddr, sport,
iph->daddr, dport, inet_iif(skb));
}
extern int __inet_hash_connect(struct inet_timewait_death_row *death_row,
struct sock *sk, u32 port_offset,
int (*check_established)(struct inet_timewait_death_row *,