X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=include%2Fnet%2Finet6_hashtables.h;h=59f0c83d55a243913eec31fefe22433213a8d48b;hb=55308c3712f56279d5547ef6e97d365ac3ab9e6d;hp=03df3b157960cb711bccf0d44fab11127dde1b3b;hpb=1d6ae775d7a948c9575658eb41184fd2e506c0df;p=cascardo%2Flinux.git diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h index 03df3b157960..59f0c83d55a2 100644 --- a/include/net/inet6_hashtables.h +++ b/include/net/inet6_hashtables.h @@ -26,19 +26,18 @@ struct inet_hashinfo; /* I have no idea if this is a good hash for v6 or not. -DaveM */ -static inline int inet6_ehashfn(const struct in6_addr *laddr, const u16 lport, - const struct in6_addr *faddr, const u16 fport, - const int ehash_size) +static inline unsigned int inet6_ehashfn(const struct in6_addr *laddr, const u16 lport, + const struct in6_addr *faddr, const u16 fport) { - int hashent = (lport ^ fport); + unsigned int hashent = (lport ^ fport); hashent ^= (laddr->s6_addr32[3] ^ faddr->s6_addr32[3]); hashent ^= hashent >> 16; hashent ^= hashent >> 8; - return (hashent & (ehash_size - 1)); + return hashent; } -static inline int inet6_sk_ehashfn(const struct sock *sk, const int ehash_size) +static inline int inet6_sk_ehashfn(const struct sock *sk) { const struct inet_sock *inet = inet_sk(sk); const struct ipv6_pinfo *np = inet6_sk(sk); @@ -46,61 +45,23 @@ static inline int inet6_sk_ehashfn(const struct sock *sk, const int ehash_size) const struct in6_addr *faddr = &np->daddr; const __u16 lport = inet->num; const __u16 fport = inet->dport; - return inet6_ehashfn(laddr, lport, faddr, fport, ehash_size); + return inet6_ehashfn(laddr, lport, faddr, fport); } +extern void __inet6_hash(struct inet_hashinfo *hashinfo, struct sock *sk); + /* * Sockets in TCP_CLOSE state are _always_ taken out of the hash, so * we need not check it for TCP lookups anymore, thanks Alexey. -DaveM * * The sockhash lock must be held as a reader here. */ -static inline struct sock * - __inet6_lookup_established(struct inet_hashinfo *hashinfo, +extern struct sock *__inet6_lookup_established(struct inet_hashinfo *hashinfo, const struct in6_addr *saddr, const u16 sport, const struct in6_addr *daddr, const u16 hnum, - const int dif) -{ - struct sock *sk; - const struct hlist_node *node; - const __u32 ports = INET_COMBINED_PORTS(sport, hnum); - /* Optimize here for direct hit, only listening connections can - * have wildcards anyways. - */ - const int hash = inet6_ehashfn(daddr, hnum, saddr, sport, - hashinfo->ehash_size); - struct inet_ehash_bucket *head = &hashinfo->ehash[hash]; - - read_lock(&head->lock); - sk_for_each(sk, node, &head->chain) { - /* For IPV6 do the cheaper port and family tests first. */ - if (INET6_MATCH(sk, saddr, daddr, ports, dif)) - goto hit; /* You sunk my battleship! */ - } - /* Must check for a TIME_WAIT'er before going to listener hash. */ - 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 && - sk->sk_family == PF_INET6) { - const struct tcp6_timewait_sock *tcp6tw = tcp6_twsk(sk); - - if (ipv6_addr_equal(&tcp6tw->tw_v6_daddr, saddr) && - ipv6_addr_equal(&tcp6tw->tw_v6_rcv_saddr, daddr) && - (!sk->sk_bound_dev_if || sk->sk_bound_dev_if == dif)) - goto hit; - } - } - read_unlock(&head->lock); - return NULL; - -hit: - sock_hold(sk); - read_unlock(&head->lock); - return sk; -} + const int dif); extern struct sock *inet6_lookup_listener(struct inet_hashinfo *hashinfo, const struct in6_addr *daddr,