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| author | Al Viro <viro@zeniv.linux.org.uk> | 2006-09-27 18:43:07 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-28 18:02:25 -0700 |
| commit | 4f765d842fa6e6fe15d555b247b640118d65b4dd (patch) | |
| tree | 7a7d3ef7f8013c76811558c045d7aacfc7feeaff /net/ipv6/inet6_hashtables.c | |
| parent | 45d60b9e29556a7831812ec338d82f4d3a4145f8 (diff) | |
| download | linux-4f765d842fa6e6fe15d555b247b640118d65b4dd.tar.bz2 | |
[IPV4]: INET_MATCH() annotations
INET_MATCH() and friends depend on an interesting set of kludges:
* there's a pair of adjacent fields in struct inet_sock - __be16 dport
followed by __u16 num. We want to search by pair, so we combine the keys into
a single 32bit value and compare with 32bit value read from &...->dport.
* on 64bit targets we combine comparisons with pair of adjacent __be32
fields in the same way.
Make sure that we don't mix those values with anything else and that pairs
we form them from have correct types.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/inet6_hashtables.c')
| -rw-r--r-- | net/ipv6/inet6_hashtables.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c index d2f3fc990bfa..8accd1fbeeda 100644 --- a/net/ipv6/inet6_hashtables.c +++ b/net/ipv6/inet6_hashtables.c @@ -64,7 +64,7 @@ struct sock *__inet6_lookup_established(struct inet_hashinfo *hashinfo, { struct sock *sk; const struct hlist_node *node; - const __u32 ports = INET_COMBINED_PORTS(sport, hnum); + const __portpair ports = INET_COMBINED_PORTS(sport, hnum); /* Optimize here for direct hit, only listening connections can * have wildcards anyways. */ @@ -82,7 +82,7 @@ struct sock *__inet6_lookup_established(struct inet_hashinfo *hashinfo, sk_for_each(sk, node, &(head + hashinfo->ehash_size)->chain) { const struct inet_timewait_sock *tw = inet_twsk(sk); - if(*((__u32 *)&(tw->tw_dport)) == ports && + if(*((__portpair *)&(tw->tw_dport)) == ports && sk->sk_family == PF_INET6) { const struct inet6_timewait_sock *tw6 = inet6_twsk(sk); @@ -171,7 +171,7 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row, const struct in6_addr *daddr = &np->rcv_saddr; const struct in6_addr *saddr = &np->daddr; const int dif = sk->sk_bound_dev_if; - const u32 ports = INET_COMBINED_PORTS(inet->dport, lport); + const __portpair ports = INET_COMBINED_PORTS(inet->dport, lport); const unsigned int hash = inet6_ehashfn(daddr, inet->num, saddr, inet->dport); struct inet_ehash_bucket *head = inet_ehash_bucket(hinfo, hash); @@ -188,7 +188,7 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row, tw = inet_twsk(sk2); - if(*((__u32 *)&(tw->tw_dport)) == ports && + if(*((__portpair *)&(tw->tw_dport)) == ports && sk2->sk_family == PF_INET6 && ipv6_addr_equal(&tw6->tw_v6_daddr, saddr) && ipv6_addr_equal(&tw6->tw_v6_rcv_saddr, daddr) && |