174 static inline int unix_our_peer(struct sock *sk, struct sock *osk)  in unix_our_peer()
179 static inline int unix_may_send(struct sock *sk, struct sock *osk)  in unix_may_send()
184 static inline int unix_recvq_full(struct sock const *sk)  in unix_recvq_full()
189 struct sock *unix_peer_get(struct sock *s)  in unix_peer_get()
191 	struct sock *peer;  in unix_peer_get()
238 static void __unix_remove_socket(struct sock *sk)  in __unix_remove_socket()
243 static void __unix_insert_socket(struct hlist_head *list, struct sock *sk)  in __unix_insert_socket()
249 static inline void unix_remove_socket(struct sock *sk)  in unix_remove_socket()
256 static inline void unix_insert_socket(struct hlist_head *list, struct sock *sk)  in unix_insert_socket()
263 static struct sock *__unix_find_socket_byname(struct net *net,  in __unix_find_socket_byname()
267 	struct sock *s;  in __unix_find_socket_byname()
284 static inline struct sock *unix_find_socket_byname(struct net *net,  in unix_find_socket_byname()
289 	struct sock *s;  in unix_find_socket_byname()
299 static struct sock *unix_find_socket_byinode(struct inode *i)  in unix_find_socket_byinode()
301 	struct sock *s;  in unix_find_socket_byinode()
364 static int unix_dgram_peer_wake_connect(struct sock *sk, struct sock *other)  in unix_dgram_peer_wake_connect()
385 static void unix_dgram_peer_wake_disconnect(struct sock *sk,  in unix_dgram_peer_wake_disconnect()
386 					    struct sock *other)  in unix_dgram_peer_wake_disconnect()
402 static void unix_dgram_peer_wake_disconnect_wakeup(struct sock *sk,  in unix_dgram_peer_wake_disconnect_wakeup()
403 						   struct sock *other)  in unix_dgram_peer_wake_disconnect_wakeup()
416 static int unix_dgram_peer_wake_me(struct sock *sk, struct sock *other)  in unix_dgram_peer_wake_me()
431 static inline int unix_writable(struct sock *sk)  in unix_writable()
436 static void unix_write_space(struct sock *sk)  in unix_write_space()
455 static void unix_dgram_disconnected(struct sock *sk, struct sock *other)  in unix_dgram_disconnected()
472 static void unix_sock_destructor(struct sock *sk)  in unix_sock_destructor()
499 static void unix_release_sock(struct sock *sk, int embrion)  in unix_release_sock()
503 	struct sock *skpair;  in unix_release_sock()
572 static void init_peercred(struct sock *sk)  in init_peercred()
581 static void copy_peercred(struct sock *sk, struct sock *peersk)  in copy_peercred()
590 static int unix_listen(struct socket *sock, int backlog)  in unix_listen()  argument
593 	struct sock *sk = sock->sk;  in unix_listen()
598 	if (sock->type != SOCK_STREAM && sock->type != SOCK_SEQPACKET)  in unix_listen()
643 static int unix_set_peek_off(struct sock *sk, int val)  in unix_set_peek_off()
737 static struct sock *unix_create1(struct net *net, struct socket *sock)  in unix_create1()  argument
739 	struct sock *sk = NULL;  in unix_create1()
750 	sock_init_data(sock, sk);  in unix_create1()
778 static int unix_create(struct net *net, struct socket *sock, int protocol,  in unix_create()  argument
784 	sock->state = SS_UNCONNECTED;  in unix_create()
786 	switch (sock->type) {  in unix_create()
788 		sock->ops = &unix_stream_ops;  in unix_create()
795 		sock->type = SOCK_DGRAM;  in unix_create()
797 		sock->ops = &unix_dgram_ops;  in unix_create()
800 		sock->ops = &unix_seqpacket_ops;  in unix_create()
806 	return unix_create1(net, sock) ? 0 : -ENOMEM;  in unix_create()
809 static int unix_release(struct socket *sock)  in unix_release()  argument
811 	struct sock *sk = sock->sk;  in unix_release()
817 	sock->sk = NULL;  in unix_release()
822 static int unix_autobind(struct socket *sock)  in unix_autobind()  argument
824 	struct sock *sk = sock->sk;  in unix_autobind()
855 	if (__unix_find_socket_byname(net, addr->name, addr->len, sock->type,  in unix_autobind()
883 static struct sock *unix_find_other(struct net *net,  in unix_find_other()
887 	struct sock *u;  in unix_find_other()
967 static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)  in unix_bind()  argument
969 	struct sock *sk = sock->sk;  in unix_bind()
984 		err = unix_autobind(sock);  in unix_bind()
1014 		       (SOCK_INODE(sock)->i_mode & ~current_umask());  in unix_bind()
1052 static void unix_state_double_lock(struct sock *sk1, struct sock *sk2)  in unix_state_double_lock()
1067 static void unix_state_double_unlock(struct sock *sk1, struct sock *sk2)  in unix_state_double_unlock()
1077 static int unix_dgram_connect(struct socket *sock, struct sockaddr *addr,  in unix_dgram_connect()  argument
1080 	struct sock *sk = sock->sk;  in unix_dgram_connect()
1083 	struct sock *other;  in unix_dgram_connect()
1093 		if (test_bit(SOCK_PASSCRED, &sock->flags) &&  in unix_dgram_connect()
1094 		    !unix_sk(sk)->addr && (err = unix_autobind(sock)) != 0)  in unix_dgram_connect()
1098 		other = unix_find_other(net, sunaddr, alen, sock->type, hash, &err);  in unix_dgram_connect()
1131 		struct sock *old_peer = unix_peer(sk);  in unix_dgram_connect()
1153 static long unix_wait_for_peer(struct sock *other, long timeo)  in unix_wait_for_peer()
1174 static int unix_stream_connect(struct socket *sock, struct sockaddr *uaddr,  in unix_stream_connect()  argument
1178 	struct sock *sk = sock->sk;  in unix_stream_connect()
1181 	struct sock *newsk = NULL;  in unix_stream_connect()
1182 	struct sock *other = NULL;  in unix_stream_connect()
1194 	if (test_bit(SOCK_PASSCRED, &sock->flags) && !u->addr &&  in unix_stream_connect()
1195 	    (err = unix_autobind(sock)) != 0)  in unix_stream_connect()
1318 	sock->state	= SS_CONNECTED;  in unix_stream_connect()
1351 	struct sock *ska = socka->sk, *skb = sockb->sk;  in unix_socketpair()
1379 static int unix_accept(struct socket *sock, struct socket *newsock, int flags)  in unix_accept()  argument
1381 	struct sock *sk = sock->sk;  in unix_accept()
1382 	struct sock *tsk;  in unix_accept()
1387 	if (sock->type != SOCK_STREAM && sock->type != SOCK_SEQPACKET)  in unix_accept()
1413 	unix_sock_inherit_flags(sock, newsock);  in unix_accept()
1423 static int unix_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_len, int peer)  in unix_getname()  argument
1425 	struct sock *sk = sock->sk;  in unix_getname()
1511 		struct sock *sk = unix_get_socket(scm->fp->fp[i]);  in unix_attach_fds()
1556 static void maybe_add_creds(struct sk_buff *skb, const struct socket *sock,  in maybe_add_creds()  argument
1557 			    const struct sock *other)  in maybe_add_creds()
1561 	if (test_bit(SOCK_PASSCRED, &sock->flags) ||  in maybe_add_creds()
1573 static int unix_dgram_sendmsg(struct socket *sock, struct msghdr *msg,  in unix_dgram_sendmsg()  argument
1576 	struct sock *sk = sock->sk;  in unix_dgram_sendmsg()
1580 	struct sock *other = NULL;  in unix_dgram_sendmsg()
1592 	err = scm_send(sock, msg, &scm, false);  in unix_dgram_sendmsg()
1613 	if (test_bit(SOCK_PASSCRED, &sock->flags) && !u->addr  in unix_dgram_sendmsg()
1614 	    && (err = unix_autobind(sock)) != 0)  in unix_dgram_sendmsg()
1756 	maybe_add_creds(skb, sock, other);  in unix_dgram_sendmsg()
1784 static int unix_stream_sendmsg(struct socket *sock, struct msghdr *msg,  in unix_stream_sendmsg()  argument
1787 	struct sock *sk = sock->sk;  in unix_stream_sendmsg()
1788 	struct sock *other = NULL;  in unix_stream_sendmsg()
1798 	err = scm_send(sock, msg, &scm, false);  in unix_stream_sendmsg()
1862 		maybe_add_creds(skb, sock, other);  in unix_stream_sendmsg()
1887 static int unix_seqpacket_sendmsg(struct socket *sock, struct msghdr *msg,  in unix_seqpacket_sendmsg()  argument
1891 	struct sock *sk = sock->sk;  in unix_seqpacket_sendmsg()
1903 	return unix_dgram_sendmsg(sock, msg, len);  in unix_seqpacket_sendmsg()
1906 static int unix_seqpacket_recvmsg(struct socket *sock, struct msghdr *msg,  in unix_seqpacket_recvmsg()  argument
1909 	struct sock *sk = sock->sk;  in unix_seqpacket_recvmsg()
1914 	return unix_dgram_recvmsg(sock, msg, size, flags);  in unix_seqpacket_recvmsg()
1917 static void unix_copy_addr(struct msghdr *msg, struct sock *sk)  in unix_copy_addr()
1927 static int unix_dgram_recvmsg(struct socket *sock, struct msghdr *msg,  in unix_dgram_recvmsg()  argument
1931 	struct sock *sk = sock->sk;  in unix_dgram_recvmsg()
2013 	scm_recv(sock, msg, &scm, flags);  in unix_dgram_recvmsg()
2026 static long unix_stream_data_wait(struct sock *sk, long timeo,  in unix_stream_data_wait()
2064 static int unix_stream_recvmsg(struct socket *sock, struct msghdr *msg,  in unix_stream_recvmsg()  argument
2068 	struct sock *sk = sock->sk;  in unix_stream_recvmsg()
2166 		} else if (test_bit(SOCK_PASSCRED, &sock->flags)) {  in unix_stream_recvmsg()
2228 	scm_recv(sock, msg, &scm, flags);  in unix_stream_recvmsg()
2233 static int unix_shutdown(struct socket *sock, int mode)  in unix_shutdown()  argument
2235 	struct sock *sk = sock->sk;  in unix_shutdown()
2236 	struct sock *other;  in unix_shutdown()
2279 long unix_inq_len(struct sock *sk)  in unix_inq_len()
2303 long unix_outq_len(struct sock *sk)  in unix_outq_len()
2309 static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)  in unix_ioctl()  argument
2311 	struct sock *sk = sock->sk;  in unix_ioctl()
2334 static unsigned int unix_poll(struct file *file, struct socket *sock, poll_table *wait)  in unix_poll()  argument
2336 	struct sock *sk = sock->sk;  in unix_poll()
2369 static unsigned int unix_dgram_poll(struct file *file, struct socket *sock,  in unix_dgram_poll()  argument
2372 	struct sock *sk = sock->sk, *other;  in unix_dgram_poll()
2434 static struct sock *unix_from_bucket(struct seq_file *seq, loff_t *pos)  in unix_from_bucket()
2438 	struct sock *sk;  in unix_from_bucket()
2451 static struct sock *unix_next_socket(struct seq_file *seq,  in unix_next_socket()
2452 				     struct sock *sk,  in unix_next_socket()
2457 	while (sk > (struct sock *)SEQ_START_TOKEN) {  in unix_next_socket()
2511 		struct sock *s = v;  in unix_seq_show()