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authorArnaldo Carvalho de Melo <acme@redhat.com>2008-10-07 22:41:57 +0400
committerDavid S. Miller <davem@davemloft.net>2008-10-07 22:41:57 +0400
commit9a1f27c48065ce713eb47f2fd475b717e63ef239 (patch)
tree79ebeb8386b98aca595625b9d2db26bd52a8077d /include/net
parentc7004482e8dcb7c3c72666395cfa98a216a4fb70 (diff)
downloadlinux-9a1f27c48065ce713eb47f2fd475b717e63ef239.tar.xz
inet_hashtables: Add inet_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: 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>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/inet6_hashtables.h11
-rw-r--r--include/net/inet_hashtables.h14
2 files changed, 25 insertions, 0 deletions
diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h
index e48989f04c24..995efbb031ab 100644
--- a/include/net/inet6_hashtables.h
+++ b/include/net/inet6_hashtables.h
@@ -91,6 +91,17 @@ static inline struct sock *__inet6_lookup(struct net *net,
return inet6_lookup_listener(net, hashinfo, daddr, hnum, dif);
}
+static inline struct sock *__inet6_lookup_skb(struct inet_hashinfo *hashinfo,
+ struct sk_buff *skb,
+ const __be16 sport,
+ const __be16 dport)
+{
+ return __inet6_lookup(dev_net(skb->dst->dev), hashinfo,
+ &ipv6_hdr(skb)->saddr, sport,
+ &ipv6_hdr(skb)->daddr, ntohs(dport),
+ inet6_iif(skb));
+}
+
extern struct sock *inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo,
const struct in6_addr *saddr, const __be16 sport,
const struct in6_addr *daddr, const __be16 dport,
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index bb619d80f2e2..3522bbcd546d 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -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 *,