1 #ifndef __LINUX_NET_AFUNIX_H
2 #define __LINUX_NET_AFUNIX_H
4 #include <linux/config.h>
5 #include <linux/socket.h>
7 #include <linux/mutex.h>
9 #include <linux/vs_base.h>
11 extern void unix_inflight(struct file *fp);
12 extern void unix_notinflight(struct file *fp);
13 extern void unix_gc(void);
15 #define UNIX_HASH_SIZE 256
17 extern struct hlist_head unix_socket_table[UNIX_HASH_SIZE + 1];
18 extern spinlock_t unix_table_lock;
20 extern atomic_t unix_tot_inflight;
22 static inline struct sock *next_unix_socket_table(int *i)
24 for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) {
25 if (!hlist_empty(&unix_socket_table[*i]))
26 return __sk_head(&unix_socket_table[*i]);
31 static inline struct sock *next_unix_socket(int *i, struct sock *s)
37 s = next_unix_socket_table(i);
38 } while (s && !vx_check(s->sk_xid, VX_IDENT|VX_WATCH));
42 static inline struct sock *first_unix_socket(int *i)
45 return next_unix_socket(i, NULL);
48 #define forall_unix_sockets(i, s) \
49 for (s = first_unix_socket(&(i)); s; s = next_unix_socket(&(i),(s)))
55 struct sockaddr_un name[0];
58 struct unix_skb_parms {
59 struct ucred creds; /* Skb credentials */
60 struct scm_fp_list *fp; /* Passed files */
63 #define UNIXCB(skb) (*(struct unix_skb_parms*)&((skb)->cb))
64 #define UNIXCREDS(skb) (&UNIXCB((skb)).creds)
66 #define unix_state_rlock(s) spin_lock(&unix_sk(s)->lock)
67 #define unix_state_runlock(s) spin_unlock(&unix_sk(s)->lock)
68 #define unix_state_wlock(s) spin_lock(&unix_sk(s)->lock)
69 #define unix_state_wunlock(s) spin_unlock(&unix_sk(s)->lock)
72 /* The AF_UNIX socket */
74 /* WARNING: sk has to be the first member */
76 struct unix_address *addr;
77 struct dentry *dentry;
79 struct mutex readlock;
85 wait_queue_head_t peer_wait;
87 #define unix_sk(__sk) ((struct unix_sock *)__sk)
90 extern int sysctl_unix_max_dgram_qlen;
91 extern void unix_sysctl_register(void);
92 extern void unix_sysctl_unregister(void);
94 static inline void unix_sysctl_register(void) {}
95 static inline void unix_sysctl_unregister(void) {}