* ports are created in O(1) time? I thought so. ;-) -DaveM
*/
struct inet_bind_bucket {
+ struct net *ib_net;
unsigned short port;
signed short fastreuse;
struct hlist_node node;
extern struct inet_bind_bucket *
inet_bind_bucket_create(struct kmem_cache *cachep,
+ struct net *net,
struct inet_bind_hashbucket *head,
const unsigned short snum);
extern void inet_bind_bucket_destroy(struct kmem_cache *cachep,
}
/* Caller must disable local BH processing. */
-static inline void __inet_inherit_port(struct inet_hashinfo *table,
- struct sock *sk, struct sock *child)
+static inline void __inet_inherit_port(struct sock *sk, struct sock *child)
{
+ struct inet_hashinfo *table = sk->sk_prot->hashinfo;
const int bhash = inet_bhashfn(inet_sk(child)->num, table->bhash_size);
struct inet_bind_hashbucket *head = &table->bhash[bhash];
struct inet_bind_bucket *tb;
spin_unlock(&head->lock);
}
-static inline void inet_inherit_port(struct inet_hashinfo *table,
- struct sock *sk, struct sock *child)
+static inline void inet_inherit_port(struct sock *sk, struct sock *child)
{
local_bh_disable();
- __inet_inherit_port(table, sk, child);
+ __inet_inherit_port(sk, child);
local_bh_enable();
}
-extern void inet_put_port(struct inet_hashinfo *table, struct sock *sk);
+extern void inet_put_port(struct sock *sk);
extern void inet_listen_wlock(struct inet_hashinfo *hashinfo);
wake_up(&hashinfo->lhash_wait);
}
-static inline void __inet_hash(struct inet_hashinfo *hashinfo,
- struct sock *sk, const int listen_possible)
-{
- struct hlist_head *list;
- rwlock_t *lock;
-
- BUG_TRAP(sk_unhashed(sk));
- if (listen_possible && sk->sk_state == TCP_LISTEN) {
- list = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)];
- lock = &hashinfo->lhash_lock;
- inet_listen_wlock(hashinfo);
- } else {
- struct inet_ehash_bucket *head;
- sk->sk_hash = inet_sk_ehashfn(sk);
- head = inet_ehash_bucket(hashinfo, sk->sk_hash);
- list = &head->chain;
- lock = inet_ehash_lockp(hashinfo, sk->sk_hash);
- write_lock(lock);
- }
- __sk_add_node(sk, list);
- sock_prot_inc_use(sk->sk_prot);
- write_unlock(lock);
- if (listen_possible && sk->sk_state == TCP_LISTEN)
- wake_up(&hashinfo->lhash_wait);
-}
-
-static inline void inet_hash(struct inet_hashinfo *hashinfo, struct sock *sk)
-{
- if (sk->sk_state != TCP_CLOSE) {
- local_bh_disable();
- __inet_hash(hashinfo, sk, 1);
- local_bh_enable();
- }
-}
-
-static inline void inet_unhash(struct inet_hashinfo *hashinfo, struct sock *sk)
-{
- rwlock_t *lock;
-
- if (sk_unhashed(sk))
- goto out;
-
- if (sk->sk_state == TCP_LISTEN) {
- local_bh_disable();
- inet_listen_wlock(hashinfo);
- lock = &hashinfo->lhash_lock;
- } else {
- lock = inet_ehash_lockp(hashinfo, sk->sk_hash);
- write_lock_bh(lock);
- }
-
- if (__sk_del_node_init(sk))
- sock_prot_dec_use(sk->sk_prot);
- write_unlock_bh(lock);
-out:
- if (sk->sk_state == TCP_LISTEN)
- wake_up(&hashinfo->lhash_wait);
-}
+extern void __inet_hash_nolisten(struct sock *sk);
+extern void inet_hash(struct sock *sk);
+extern void inet_unhash(struct sock *sk);
-extern struct sock *__inet_lookup_listener(struct inet_hashinfo *hashinfo,
+extern struct sock *__inet_lookup_listener(struct net *net,
+ struct inet_hashinfo *hashinfo,
const __be32 daddr,
const unsigned short hnum,
const int dif);
-static inline struct sock *inet_lookup_listener(struct inet_hashinfo *hashinfo,
- __be32 daddr, __be16 dport, int dif)
+static inline struct sock *inet_lookup_listener(struct net *net,
+ struct inet_hashinfo *hashinfo,
+ __be32 daddr, __be16 dport, int dif)
{
- return __inet_lookup_listener(hashinfo, daddr, ntohs(dport), dif);
+ return __inet_lookup_listener(net, hashinfo, daddr, ntohs(dport), dif);
}
/* Socket demux engine toys. */
(((__force __u64)(__be32)(__daddr)) << 32) | \
((__force __u64)(__be32)(__saddr)));
#endif /* __BIG_ENDIAN */
-#define INET_MATCH(__sk, __hash, __cookie, __saddr, __daddr, __ports, __dif)\
- (((__sk)->sk_hash == (__hash)) && \
+#define INET_MATCH(__sk, __net, __hash, __cookie, __saddr, __daddr, __ports, __dif)\
+ (((__sk)->sk_hash == (__hash)) && ((__sk)->sk_net == (__net)) && \
((*((__addrpair *)&(inet_sk(__sk)->daddr))) == (__cookie)) && \
((*((__portpair *)&(inet_sk(__sk)->dport))) == (__ports)) && \
(!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif))))
-#define INET_TW_MATCH(__sk, __hash, __cookie, __saddr, __daddr, __ports, __dif)\
- (((__sk)->sk_hash == (__hash)) && \
+#define INET_TW_MATCH(__sk, __net, __hash, __cookie, __saddr, __daddr, __ports, __dif)\
+ (((__sk)->sk_hash == (__hash)) && ((__sk)->sk_net == (__net)) && \
((*((__addrpair *)&(inet_twsk(__sk)->tw_daddr))) == (__cookie)) && \
((*((__portpair *)&(inet_twsk(__sk)->tw_dport))) == (__ports)) && \
(!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif))))
#else /* 32-bit arch */
#define INET_ADDR_COOKIE(__name, __saddr, __daddr)
-#define INET_MATCH(__sk, __hash, __cookie, __saddr, __daddr, __ports, __dif) \
- (((__sk)->sk_hash == (__hash)) && \
+#define INET_MATCH(__sk, __net, __hash, __cookie, __saddr, __daddr, __ports, __dif) \
+ (((__sk)->sk_hash == (__hash)) && ((__sk)->sk_net == (__net)) && \
(inet_sk(__sk)->daddr == (__saddr)) && \
(inet_sk(__sk)->rcv_saddr == (__daddr)) && \
((*((__portpair *)&(inet_sk(__sk)->dport))) == (__ports)) && \
(!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif))))
-#define INET_TW_MATCH(__sk, __hash,__cookie, __saddr, __daddr, __ports, __dif) \
- (((__sk)->sk_hash == (__hash)) && \
+#define INET_TW_MATCH(__sk, __net, __hash,__cookie, __saddr, __daddr, __ports, __dif) \
+ (((__sk)->sk_hash == (__hash)) && ((__sk)->sk_net == (__net)) && \
(inet_twsk(__sk)->tw_daddr == (__saddr)) && \
(inet_twsk(__sk)->tw_rcv_saddr == (__daddr)) && \
((*((__portpair *)&(inet_twsk(__sk)->tw_dport))) == (__ports)) && \
*
* Local BH must be disabled here.
*/
-static inline struct sock *
- __inet_lookup_established(struct inet_hashinfo *hashinfo,
- const __be32 saddr, const __be16 sport,
- const __be32 daddr, const u16 hnum,
- const int dif)
-{
- INET_ADDR_COOKIE(acookie, saddr, daddr)
- const __portpair ports = INET_COMBINED_PORTS(sport, hnum);
- struct sock *sk;
- const struct hlist_node *node;
- /* Optimize here for direct hit, only listening connections can
- * have wildcards anyways.
- */
- unsigned int hash = inet_ehashfn(daddr, hnum, saddr, sport);
- struct inet_ehash_bucket *head = inet_ehash_bucket(hashinfo, hash);
- rwlock_t *lock = inet_ehash_lockp(hashinfo, hash);
-
- prefetch(head->chain.first);
- read_lock(lock);
- sk_for_each(sk, node, &head->chain) {
- if (INET_MATCH(sk, hash, acookie, 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->twchain) {
- if (INET_TW_MATCH(sk, hash, acookie, saddr, daddr, ports, dif))
- goto hit;
- }
- sk = NULL;
-out:
- read_unlock(lock);
- return sk;
-hit:
- sock_hold(sk);
- goto out;
-}
+extern struct sock * __inet_lookup_established(struct net *net,
+ struct inet_hashinfo *hashinfo,
+ const __be32 saddr, const __be16 sport,
+ const __be32 daddr, const u16 hnum, const int dif);
static inline struct sock *
- inet_lookup_established(struct inet_hashinfo *hashinfo,
+ inet_lookup_established(struct net *net, struct inet_hashinfo *hashinfo,
const __be32 saddr, const __be16 sport,
const __be32 daddr, const __be16 dport,
const int dif)
{
- return __inet_lookup_established(hashinfo, saddr, sport, daddr,
+ return __inet_lookup_established(net, hashinfo, saddr, sport, daddr,
ntohs(dport), dif);
}
-static inline struct sock *__inet_lookup(struct inet_hashinfo *hashinfo,
+static inline struct sock *__inet_lookup(struct net *net,
+ struct inet_hashinfo *hashinfo,
const __be32 saddr, const __be16 sport,
const __be32 daddr, const __be16 dport,
const int dif)
{
u16 hnum = ntohs(dport);
- struct sock *sk = __inet_lookup_established(hashinfo, saddr, sport, daddr,
- hnum, dif);
- return sk ? : __inet_lookup_listener(hashinfo, daddr, hnum, dif);
+ struct sock *sk = __inet_lookup_established(net, hashinfo,
+ saddr, sport, daddr, hnum, dif);
+
+ return sk ? : __inet_lookup_listener(net, hashinfo, daddr, hnum, dif);
}
-static inline struct sock *inet_lookup(struct inet_hashinfo *hashinfo,
+static inline struct sock *inet_lookup(struct net *net,
+ struct inet_hashinfo *hashinfo,
const __be32 saddr, const __be16 sport,
const __be32 daddr, const __be16 dport,
const int dif)
struct sock *sk;
local_bh_disable();
- sk = __inet_lookup(hashinfo, saddr, sport, daddr, dport, dif);
+ sk = __inet_lookup(net, hashinfo, saddr, sport, daddr, dport, dif);
local_bh_enable();
return sk;
}
+extern int __inet_hash_connect(struct inet_timewait_death_row *death_row,
+ struct sock *sk,
+ int (*check_established)(struct inet_timewait_death_row *,
+ struct sock *, __u16, struct inet_timewait_sock **),
+ void (*hash)(struct sock *sk));
extern int inet_hash_connect(struct inet_timewait_death_row *death_row,
struct sock *sk);
#endif /* _INET_HASHTABLES_H */
git.samba.org / sfrench / cifs-2.6.git / blobdiff