1 #ifndef __LINUX_NET_AFUNIX_H
2 #define __LINUX_NET_AFUNIX_H
3 extern void unix_proto_init(struct net_proto *pro);
4 extern void unix_inflight(struct file *fp);
5 extern void unix_notinflight(struct file *fp);
6 typedef struct sock unix_socket;
7 extern void unix_gc(void);
9 #define UNIX_HASH_SIZE 256
11 extern unix_socket *unix_socket_table[UNIX_HASH_SIZE+1];
12 extern rwlock_t unix_table_lock;
14 extern atomic_t unix_tot_inflight;
16 static inline unix_socket *first_unix_socket(int *i)
18 for (*i = 0; *i <= UNIX_HASH_SIZE; (*i)++) {
19 if (unix_socket_table[*i])
20 return unix_socket_table[*i];
25 static inline unix_socket *next_unix_socket(int *i, unix_socket *s)
27 /* More in this chain? */
30 /* Look for next non-empty chain. */
31 for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) {
32 if (unix_socket_table[*i])
33 return unix_socket_table[*i];
38 #define forall_unix_sockets(i, s) \
39 for (s = first_unix_socket(&(i)); s; s = next_unix_socket(&(i),(s)))
46 struct sockaddr_un name[0];
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(&(s)->protinfo.af_unix.lock)
59 #define unix_state_runlock(s) read_unlock(&(s)->protinfo.af_unix.lock)
60 #define unix_state_wlock(s) write_lock(&(s)->protinfo.af_unix.lock)
61 #define unix_state_wunlock(s) write_unlock(&(s)->protinfo.af_unix.lock)