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authorCraig Gallek <kraig@google.com>2016-02-10 19:50:36 +0300
committerDavid S. Miller <davem@davemloft.net>2016-02-11 11:54:14 +0300
commit496611d7b5eaf59c03440c8f2def1d9988ad2459 (patch)
tree906a3ca1cd1a01ac476c3ac27d519b98870149e2 /include
parent086c653f5862591a9cfe2386f5650d03adacc33a (diff)
downloadlinux-496611d7b5eaf59c03440c8f2def1d9988ad2459.tar.xz
inet: create IPv6-equivalent inet_hash function
In order to support fast lookups for TCP sockets with SO_REUSEPORT, the function that adds sockets to the listening hash set needs to be able to check receive address equality. Since this equality check is different for IPv4 and IPv6, we will need two different socket hashing functions. This patch adds inet6_hash identical to the existing inet_hash function and updates the appropriate references. A following patch will differentiate the two by passing different comparison functions to __inet_hash. Additionally, in order to use the IPv6 address equality function from inet6_hashtables (which is compiled as a built-in object when IPv6 is enabled) it also needs to be in a built-in object file as well. This moves ipv6_rcv_saddr_equal into inet_hashtables to accomplish this. Signed-off-by: Craig Gallek <kraig@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/inet6_hashtables.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h
index 7ff588ca6817..b3c28a9dfbf1 100644
--- a/include/net/inet6_hashtables.h
+++ b/include/net/inet6_hashtables.h
@@ -96,6 +96,8 @@ 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,
const int dif);
+
+int inet6_hash(struct sock *sk);
#endif /* IS_ENABLED(CONFIG_IPV6) */
#define INET6_MATCH(__sk, __net, __saddr, __daddr, __ports, __dif) \