92 static int __pppoe_xmit(struct sock *sk, struct sk_buff *skb);
289 		struct sock *sk;  in pppoe_flush_dev()  local
299 			sk = sk_pppox(po);  in pppoe_flush_dev()
309 			sock_hold(sk);  in pppoe_flush_dev()
311 			lock_sock(sk);  in pppoe_flush_dev()
314 			    sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND | PPPOX_ZOMBIE)) {  in pppoe_flush_dev()
315 				pppox_unbind_sock(sk);  in pppoe_flush_dev()
316 				sk->sk_state_change(sk);  in pppoe_flush_dev()
321 			release_sock(sk);  in pppoe_flush_dev()
322 			sock_put(sk);  in pppoe_flush_dev()
372 static int pppoe_rcv_core(struct sock *sk, struct sk_buff *skb)  in pppoe_rcv_core()  argument
374 	struct pppox_sock *po = pppox_sk(sk);  in pppoe_rcv_core()
382 	if (sk->sk_state & PPPOX_BOUND) {  in pppoe_rcv_core()
384 	} else if (sk->sk_state & PPPOX_RELAY) {  in pppoe_rcv_core()
385 		relay_po = get_item_by_addr(sock_net(sk),  in pppoe_rcv_core()
396 		if (sock_queue_rcv_skb(sk, skb))  in pppoe_rcv_core()
485 		struct sock *sk = sk_pppox(po);  in pppoe_disc_rcv()  local
487 		bh_lock_sock(sk);  in pppoe_disc_rcv()
494 		if (sock_owned_by_user(sk) == 0) {  in pppoe_disc_rcv()
498 			sk->sk_state = PPPOX_ZOMBIE;  in pppoe_disc_rcv()
501 		bh_unlock_sock(sk);  in pppoe_disc_rcv()
502 		sock_put(sk);  in pppoe_disc_rcv()
534 	struct sock *sk;  in pppoe_create()  local
536 	sk = sk_alloc(net, PF_PPPOX, GFP_KERNEL, &pppoe_sk_proto);  in pppoe_create()
537 	if (!sk)  in pppoe_create()
540 	sock_init_data(sock, sk);  in pppoe_create()
545 	sk->sk_backlog_rcv	= pppoe_rcv_core;  in pppoe_create()
546 	sk->sk_state		= PPPOX_NONE;  in pppoe_create()
547 	sk->sk_type		= SOCK_STREAM;  in pppoe_create()
548 	sk->sk_family		= PF_PPPOX;  in pppoe_create()
549 	sk->sk_protocol		= PX_PROTO_OE;  in pppoe_create()
556 	struct sock *sk = sock->sk;  in pppoe_release()  local
561 	if (!sk)  in pppoe_release()
564 	lock_sock(sk);  in pppoe_release()
565 	if (sock_flag(sk, SOCK_DEAD)) {  in pppoe_release()
566 		release_sock(sk);  in pppoe_release()
570 	po = pppox_sk(sk);  in pppoe_release()
577 	pppox_unbind_sock(sk);  in pppoe_release()
580 	sk->sk_state = PPPOX_DEAD;  in pppoe_release()
582 	net = sock_net(sk);  in pppoe_release()
592 	sock_orphan(sk);  in pppoe_release()
593 	sock->sk = NULL;  in pppoe_release()
595 	skb_queue_purge(&sk->sk_receive_queue);  in pppoe_release()
596 	release_sock(sk);  in pppoe_release()
597 	sock_put(sk);  in pppoe_release()
605 	struct sock *sk = sock->sk;  in pppoe_connect()  local
607 	struct pppox_sock *po = pppox_sk(sk);  in pppoe_connect()
613 	lock_sock(sk);  in pppoe_connect()
621 	if ((sk->sk_state & PPPOX_CONNECTED) &&  in pppoe_connect()
627 	if ((sk->sk_state & PPPOX_DEAD) &&  in pppoe_connect()
635 		pppox_unbind_sock(sk);  in pppoe_connect()
636 		pn = pppoe_pernet(sock_net(sk));  in pppoe_connect()
646 		sk->sk_state = PPPOX_NONE;  in pppoe_connect()
652 		net = sock_net(sk);  in pppoe_connect()
678 		po->chan.private = sk;  in pppoe_connect()
688 		sk->sk_state = PPPOX_CONNECTED;  in pppoe_connect()
694 	release_sock(sk);  in pppoe_connect()
712 	memcpy(&sp.sa_addr.pppoe, &pppox_sk(sock->sk)->pppoe_pa,  in pppoe_getname()
725 	struct sock *sk = sock->sk;  in pppoe_ioctl()  local
726 	struct pppox_sock *po = pppox_sk(sk);  in pppoe_ioctl()
733 		if (!(sk->sk_state & PPPOX_CONNECTED))  in pppoe_ioctl()
747 		if (!(sk->sk_state & PPPOX_CONNECTED))  in pppoe_ioctl()
774 		if (sk->sk_state & (PPPOX_BOUND | PPPOX_ZOMBIE | PPPOX_DEAD))  in pppoe_ioctl()
778 		if (!(sk->sk_state & PPPOX_CONNECTED))  in pppoe_ioctl()
796 		relay_po = get_item_by_addr(sock_net(sk), &po->pppoe_relay);  in pppoe_ioctl()
801 		sk->sk_state |= PPPOX_RELAY;  in pppoe_ioctl()
808 		if (!(sk->sk_state & PPPOX_RELAY))  in pppoe_ioctl()
811 		sk->sk_state &= ~PPPOX_RELAY;  in pppoe_ioctl()
826 	struct sock *sk = sock->sk;  in pppoe_sendmsg()  local
827 	struct pppox_sock *po = pppox_sk(sk);  in pppoe_sendmsg()
835 	lock_sock(sk);  in pppoe_sendmsg()
836 	if (sock_flag(sk, SOCK_DEAD) || !(sk->sk_state & PPPOX_CONNECTED)) {  in pppoe_sendmsg()
853 	skb = sock_wmalloc(sk, hlen + sizeof(*ph) + total_len +  in pppoe_sendmsg()
866 	skb->priority = sk->sk_priority;  in pppoe_sendmsg()
889 	release_sock(sk);  in pppoe_sendmsg()
898 static int __pppoe_xmit(struct sock *sk, struct sk_buff *skb)  in __pppoe_xmit()  argument
900 	struct pppox_sock *po = pppox_sk(sk);  in __pppoe_xmit()
913 	if (sock_flag(sk, SOCK_DEAD) || !(sk->sk_state & PPPOX_CONNECTED))  in __pppoe_xmit()
957 	struct sock *sk = (struct sock *)chan->private;  in pppoe_xmit()  local
958 	return __pppoe_xmit(sk, skb);  in pppoe_xmit()
968 	struct sock *sk = sock->sk;  in pppoe_recvmsg()  local
972 	if (sk->sk_state & PPPOX_BOUND) {  in pppoe_recvmsg()
977 	skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT,  in pppoe_recvmsg()