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p; /* Check TIME-WAIT sockets first. */
24. sk_nulls_for_each(sk2, node, &head->twchain) {
25. tw = inet_twsk(sk2);
26.
27.
28. if (INET_TW_MATCH(sk2, net, hash, acookie,
29. saddr, daddr, ports, dif)) {
30. if (twsk_unique(sk, sk2, twp))
31. goto unique;
32. else
33. goto not_unique;
34. }
35. }
36. tw = NULL;
37.
38. /* And established part... */
39. sk_nulls_for_each(sk2, node, &head->chain) {
40. if (INET_MATCH(sk2, net, hash, acookie,
41. saddr, daddr, ports, dif))
42. goto not_unique;
43. }
44.
45.unique:
46. ......
47. return 0;
48.
49.not_unique:
50. spin_unlock(lock);
51. return -EADDRNOTAVAIL;
52.}
/* called with local bh disabled */
static int __inet_check_established(struct inet_timewait_death_row *death_row,
struct sock *sk, __u16 lport,
struct inet_timewait_sock **twp)
{
struct inet_hashinfo *hinfo = death_row->hashinfo;
struct inet_sock *inet = inet_sk(sk);
__be32 daddr = inet->rcv_saddr;
__be32 saddr = inet->daddr;
int dif = sk->sk_bound_dev_if;
INET_ADDR_COOKIE(acookie, saddr, daddr)
const __portpair ports = INET_COMBINED_PORTS(inet->dport, lport);
struct net *net = sock_net(sk);
unsigned int hash = inet_ehashfn(net, daddr, lport, saddr, inet->dport);
struct inet_ehash_bucket *head = inet_ehash_bucket(hinfo, has << 上一页 [11] [12] [13] [14] [15] 下一页
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