[IPV6]: Introduce the INET6_TW_MATCH macro.

We have INET_MATCH, INET_TW_MATCH and INET6_MATCH to test sockets and
twbuckets for matching, but ipv6 twbuckets are tested manually.

Here's the INET6_TW_MATCH to help with it.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 5d35a4cc3bff..c34786044a1b 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -465,6 +465,14 @@ static inline struct raw6_sock *raw6_sk(const struct sock *sk)
          ipv6_addr_equal(&inet6_sk(__sk)->rcv_saddr, (__daddr)) && \
          (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif))))
 
+#define INET6_TW_MATCH(__sk, __hash, __saddr, __daddr, __ports, __dif) \
+        (((__sk)->sk_hash == (__hash))                                  && \
+         (*((__portpair *)&(inet_twsk(__sk)->tw_dport)) == (__ports))   && \
+         ((__sk)->sk_family            == PF_INET6)                     && \
+         (ipv6_addr_equal(&inet6_twsk(__sk)->tw_v6_daddr, (__saddr)))   && \
+         (ipv6_addr_equal(&inet6_twsk(__sk)->tw_v6_rcv_saddr, (__daddr))) && \
+         (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif))))
+
 #endif /* __KERNEL__ */
 
 #endif /* _IPV6_H */