1#ifndef __LINUX_NET_AFUNIX_H
2#define __LINUX_NET_AFUNIX_H
3extern void unix_proto_init(struct net_proto *pro);
4extern void unix_inflight(struct file *fp);
5extern void unix_notinflight(struct file *fp);
6typedef struct sock unix_socket;
7extern void unix_gc(void);
8
9#define UNIX_HASH_SIZE	256
10
11extern unix_socket *unix_socket_table[UNIX_HASH_SIZE+1];
12extern rwlock_t unix_table_lock;
13
14extern atomic_t unix_tot_inflight;
15
16
17#define forall_unix_sockets(i, s) for (i=0; i<=UNIX_HASH_SIZE; i++) \
18                                    for (s=unix_socket_table[i]; s; s=s->next)
19
20struct unix_address
21{
22	atomic_t	refcnt;
23	int		len;
24	unsigned	hash;
25	struct sockaddr_un name[0];
26};
27
28struct unix_skb_parms
29{
30	struct ucred		creds;		/* Skb credentials	*/
31	struct scm_fp_list	*fp;		/* Passed files		*/
32};
33
34#define UNIXCB(skb) 	(*(struct unix_skb_parms*)&((skb)->cb))
35#define UNIXCREDS(skb)	(&UNIXCB((skb)).creds)
36
37#define unix_state_rlock(s)	read_lock(&(s)->protinfo.af_unix.lock)
38#define unix_state_runlock(s)	read_unlock(&(s)->protinfo.af_unix.lock)
39#define unix_state_wlock(s)	write_lock(&(s)->protinfo.af_unix.lock)
40#define unix_state_wunlock(s)	write_unlock(&(s)->protinfo.af_unix.lock)
41
42#endif
43