1 #ifndef __LINUX_NET_AFUNIX_H
2 #define __LINUX_NET_AFUNIX_H
3 extern void unix_inflight(struct file *fp);
4 extern void unix_notinflight(struct file *fp);
5 extern void unix_gc(void);
7 #define UNIX_HASH_SIZE 256
9 extern struct hlist_head unix_socket_table[UNIX_HASH_SIZE + 1];
10 extern rwlock_t unix_table_lock;
12 extern atomic_t unix_tot_inflight;
14 static inline struct sock *next_unix_socket_table(int *i)
16 for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) {
17 if (!hlist_empty(&unix_socket_table[*i]))
18 return __sk_head(&unix_socket_table[*i]);
23 static inline struct sock *next_unix_socket(int *i, struct sock *s)
29 s = next_unix_socket_table(i);
30 } while (s && !vx_check(s->sk_xid, VX_IDENT|VX_WATCH));
34 static inline struct sock *first_unix_socket(int *i)
37 return next_unix_socket(i, NULL);
40 #define forall_unix_sockets(i, s) \
41 for (s = first_unix_socket(&(i)); s; s = next_unix_socket(&(i),(s)))
47 struct sockaddr_un name[0];
50 struct unix_skb_parms {
51 struct ucred creds; /* Skb credentials */
52 struct scm_fp_list *fp; /* Passed files */
55 #define UNIXCB(skb) (*(struct unix_skb_parms*)&((skb)->cb))
56 #define UNIXCREDS(skb) (&UNIXCB((skb)).creds)
58 #define unix_state_rlock(s) read_lock(&unix_sk(s)->lock)
59 #define unix_state_runlock(s) read_unlock(&unix_sk(s)->lock)
60 #define unix_state_wlock(s) write_lock(&unix_sk(s)->lock)
61 #define unix_state_wunlock(s) write_unlock(&unix_sk(s)->lock)
64 /* The AF_UNIX socket */
66 /* WARNING: sk has to be the first member */
68 struct unix_address *addr;
69 struct dentry *dentry;
71 struct semaphore readsem;
77 wait_queue_head_t peer_wait;
79 #define unix_sk(__sk) ((struct unix_sock *)__sk)