117 	struct ipx_interface *intrfc = ipx_sk(sk)->intrfc;  in ipx_remove_socket()  local
119 	if (!intrfc)  in ipx_remove_socket()
122 	ipxitf_hold(intrfc);  in ipx_remove_socket()
123 	spin_lock_bh(&intrfc->if_sklist_lock);  in ipx_remove_socket()
125 	spin_unlock_bh(&intrfc->if_sklist_lock);  in ipx_remove_socket()
126 	ipxitf_put(intrfc);  in ipx_remove_socket()
201 static void ipxitf_insert_socket(struct ipx_interface *intrfc, struct sock *sk)  in ipxitf_insert_socket()  argument
203 	ipxitf_hold(intrfc);  in ipxitf_insert_socket()
204 	spin_lock_bh(&intrfc->if_sklist_lock);  in ipxitf_insert_socket()
205 	ipx_sk(sk)->intrfc = intrfc;  in ipxitf_insert_socket()
206 	sk_add_node(sk, &intrfc->if_sklist);  in ipxitf_insert_socket()
207 	spin_unlock_bh(&intrfc->if_sklist_lock);  in ipxitf_insert_socket()
208 	ipxitf_put(intrfc);  in ipxitf_insert_socket()
212 static struct sock *__ipxitf_find_socket(struct ipx_interface *intrfc,  in __ipxitf_find_socket()  argument
217 	sk_for_each(s, &intrfc->if_sklist)  in __ipxitf_find_socket()
226 static struct sock *ipxitf_find_socket(struct ipx_interface *intrfc,  in ipxitf_find_socket()  argument
231 	spin_lock_bh(&intrfc->if_sklist_lock);  in ipxitf_find_socket()
232 	s = __ipxitf_find_socket(intrfc, port);  in ipxitf_find_socket()
235 	spin_unlock_bh(&intrfc->if_sklist_lock);  in ipxitf_find_socket()
241 static struct sock *ipxitf_find_internal_socket(struct ipx_interface *intrfc,  in ipxitf_find_internal_socket()  argument
247 	ipxitf_hold(intrfc);  in ipxitf_find_internal_socket()
248 	spin_lock_bh(&intrfc->if_sklist_lock);  in ipxitf_find_internal_socket()
250 	sk_for_each(s, &intrfc->if_sklist) {  in ipxitf_find_internal_socket()
259 	spin_unlock_bh(&intrfc->if_sklist_lock);  in ipxitf_find_internal_socket()
260 	ipxitf_put(intrfc);  in ipxitf_find_internal_socket()
265 static void __ipxitf_down(struct ipx_interface *intrfc)  in __ipxitf_down()  argument
271 	ipxrtr_del_routes(intrfc);  in __ipxitf_down()
273 	spin_lock_bh(&intrfc->if_sklist_lock);  in __ipxitf_down()
275 	sk_for_each_safe(s, t, &intrfc->if_sklist) {  in __ipxitf_down()
280 		ipxs->intrfc = NULL;  in __ipxitf_down()
285 	INIT_HLIST_HEAD(&intrfc->if_sklist);  in __ipxitf_down()
286 	spin_unlock_bh(&intrfc->if_sklist_lock);  in __ipxitf_down()
289 	list_del(&intrfc->node);  in __ipxitf_down()
292 	if (intrfc == ipx_primary_net)  in __ipxitf_down()
294 	if (intrfc == ipx_internal_net)  in __ipxitf_down()
297 	if (intrfc->if_dev)  in __ipxitf_down()
298 		dev_put(intrfc->if_dev);  in __ipxitf_down()
299 	kfree(intrfc);  in __ipxitf_down()
302 void ipxitf_down(struct ipx_interface *intrfc)  in ipxitf_down()  argument
305 	__ipxitf_down(intrfc);  in ipxitf_down()
309 static void __ipxitf_put(struct ipx_interface *intrfc)  in __ipxitf_put()  argument
311 	if (atomic_dec_and_test(&intrfc->refcnt))  in __ipxitf_put()
312 		__ipxitf_down(intrfc);  in __ipxitf_put()
364 static int ipxitf_demux_socket(struct ipx_interface *intrfc,  in ipxitf_demux_socket()  argument
373 	spin_lock_bh(&intrfc->if_sklist_lock);  in ipxitf_demux_socket()
375 	sk_for_each(s, &intrfc->if_sklist) {  in ipxitf_demux_socket()
396 			if (intrfc != ipx_internal_net)  in ipxitf_demux_socket()
407 	spin_unlock_bh(&intrfc->if_sklist_lock);  in ipxitf_demux_socket()
411 static struct sock *ncp_connection_hack(struct ipx_interface *intrfc,  in ncp_connection_hack()  argument
434 		spin_lock_bh(&intrfc->if_sklist_lock);  in ncp_connection_hack()
435 		sk_for_each(sk, &intrfc->if_sklist)  in ncp_connection_hack()
442 		spin_unlock_bh(&intrfc->if_sklist_lock);  in ncp_connection_hack()
447 static int ipxitf_demux_socket(struct ipx_interface *intrfc,  in ipxitf_demux_socket()  argument
455 	if (intrfc == ipx_primary_net && ntohs(ipx->ipx_dest.sock) == 0x451)  in ipxitf_demux_socket()
456 		sock1 = ncp_connection_hack(intrfc, ipx);  in ipxitf_demux_socket()
459 		sock1 = ipxitf_find_socket(intrfc, ipx->ipx_dest.sock);  in ipxitf_demux_socket()
469 	if (ipx_primary_net && intrfc != ipx_primary_net) {  in ipxitf_demux_socket()
534 static struct sk_buff *ipxitf_adjust_skbuff(struct ipx_interface *intrfc,  in ipxitf_adjust_skbuff()  argument
539 	int out_offset = intrfc->if_ipx_offset;  in ipxitf_adjust_skbuff()
562 int ipxitf_send(struct ipx_interface *intrfc, struct sk_buff *skb, char *node)  in ipxitf_send()  argument
565 	struct net_device *dev = intrfc->if_dev;  in ipxitf_send()
566 	struct datalink_proto *dl = intrfc->if_dlink;  in ipxitf_send()
600 	if (ipx->ipx_dest.net == intrfc->if_netnum) {  in ipxitf_send()
605 		if (intrfc == ipx_internal_net ||  in ipxitf_send()
606 		    !memcmp(intrfc->if_node, node, IPX_NODE_LEN)) {  in ipxitf_send()
611 			return ipxitf_demux_socket(intrfc, skb, 0);  in ipxitf_send()
618 			ipxitf_demux_socket(intrfc, skb, send_to_wire);  in ipxitf_send()
629 	if (ipx->ipx_source.net != intrfc->if_netnum) {  in ipxitf_send()
654 	skb = ipxitf_adjust_skbuff(intrfc, skb);  in ipxitf_send()
668 static int ipxitf_add_local_route(struct ipx_interface *intrfc)  in ipxitf_add_local_route()  argument
670 	return ipxrtr_add_route(intrfc->if_netnum, intrfc, NULL);  in ipxitf_add_local_route()
673 static void ipxitf_discover_netnum(struct ipx_interface *intrfc,
675 static int ipxitf_pprop(struct ipx_interface *intrfc, struct sk_buff *skb);
677 static int ipxitf_rcv(struct ipx_interface *intrfc, struct sk_buff *skb)  in ipxitf_rcv()  argument
682 	ipxitf_hold(intrfc);  in ipxitf_rcv()
685 	if (!intrfc->if_netnum) /* net number of intrfc not known yet */  in ipxitf_rcv()
686 		ipxitf_discover_netnum(intrfc, skb);  in ipxitf_rcv()
690 		rc = ipxitf_pprop(intrfc, skb);  in ipxitf_rcv()
697 		IPX_SKB_CB(skb)->ipx_dest_net = intrfc->if_netnum;  in ipxitf_rcv()
699 		IPX_SKB_CB(skb)->ipx_source_net = intrfc->if_netnum;  in ipxitf_rcv()
704 	    intrfc->if_netnum != IPX_SKB_CB(skb)->ipx_dest_net) {  in ipxitf_rcv()
718 	    !memcmp(intrfc->if_node, ipx->ipx_dest.node, IPX_NODE_LEN)) {  in ipxitf_rcv()
719 		rc = ipxitf_demux_socket(intrfc, skb, 0);  in ipxitf_rcv()
727 	ipxitf_put(intrfc);  in ipxitf_rcv()
731 static void ipxitf_discover_netnum(struct ipx_interface *intrfc,  in ipxitf_discover_netnum()  argument
744 			intrfc->if_netnum = cb->ipx_source_net;  in ipxitf_discover_netnum()
745 			ipxitf_add_local_route(intrfc);  in ipxitf_discover_netnum()
752 				ipx_device_name(intrfc),  in ipxitf_discover_netnum()
753 				ipx_frame_name(intrfc->if_dlink_type));  in ipxitf_discover_netnum()
783 static int ipxitf_pprop(struct ipx_interface *intrfc, struct sk_buff *skb)  in ipxitf_pprop()  argument
814 		if (*l++ == intrfc->if_netnum)  in ipxitf_pprop()
821 	IPX_SKB_CB(skb)->last_hop.netnum = intrfc->if_netnum;  in ipxitf_pprop()
830 		if (ifcs == intrfc)  in ipxitf_pprop()
852 static void ipxitf_insert(struct ipx_interface *intrfc)  in ipxitf_insert()  argument
855 	list_add_tail(&intrfc->node, &ipx_interfaces);  in ipxitf_insert()
859 		ipx_primary_net = intrfc;  in ipxitf_insert()
868 	struct ipx_interface *intrfc = kmalloc(sizeof(*intrfc), GFP_ATOMIC);  in ipxitf_alloc()  local
870 	if (intrfc) {  in ipxitf_alloc()
871 		intrfc->if_dev		= dev;  in ipxitf_alloc()
872 		intrfc->if_netnum	= netnum;  in ipxitf_alloc()
873 		intrfc->if_dlink_type 	= dlink_type;  in ipxitf_alloc()
874 		intrfc->if_dlink 	= dlink;  in ipxitf_alloc()
875 		intrfc->if_internal 	= internal;  in ipxitf_alloc()
876 		intrfc->if_ipx_offset 	= ipx_offset;  in ipxitf_alloc()
877 		intrfc->if_sknum 	= IPX_MIN_EPHEMERAL_SOCKET;  in ipxitf_alloc()
878 		INIT_HLIST_HEAD(&intrfc->if_sklist);  in ipxitf_alloc()
879 		atomic_set(&intrfc->refcnt, 1);  in ipxitf_alloc()
880 		spin_lock_init(&intrfc->if_sklist_lock);  in ipxitf_alloc()
883 	return intrfc;  in ipxitf_alloc()
888 	struct ipx_interface *intrfc;  in ipxitf_create_internal()  local
899 	intrfc = ipxitf_find_using_net(idef->ipx_network);  in ipxitf_create_internal()
901 	if (intrfc) {  in ipxitf_create_internal()
902 		ipxitf_put(intrfc);  in ipxitf_create_internal()
905 	intrfc = ipxitf_alloc(NULL, idef->ipx_network, 0, NULL, 1, 0);  in ipxitf_create_internal()
907 	if (!intrfc)  in ipxitf_create_internal()
909 	memcpy((char *)&(intrfc->if_node), idef->ipx_node, IPX_NODE_LEN);  in ipxitf_create_internal()
910 	ipx_internal_net = ipx_primary_net = intrfc;  in ipxitf_create_internal()
911 	ipxitf_hold(intrfc);  in ipxitf_create_internal()
912 	ipxitf_insert(intrfc);  in ipxitf_create_internal()
914 	rc = ipxitf_add_local_route(intrfc);  in ipxitf_create_internal()
915 	ipxitf_put(intrfc);  in ipxitf_create_internal()
939 	struct ipx_interface *intrfc;  in ipxitf_create()  local
951 	intrfc = ipxitf_find_using_net(idef->ipx_network);  in ipxitf_create()
953 	if (idef->ipx_network && intrfc) {  in ipxitf_create()
954 		ipxitf_put(intrfc);  in ipxitf_create()
958 	if (intrfc)  in ipxitf_create()
959 		ipxitf_put(intrfc);  in ipxitf_create()
1001 	intrfc = ipxitf_find_using_phys(dev, dlink_type);  in ipxitf_create()
1002 	if (!intrfc) {  in ipxitf_create()
1004 		intrfc = ipxitf_alloc(dev, idef->ipx_network, dlink_type,  in ipxitf_create()
1008 		if (!intrfc)  in ipxitf_create()
1012 			ipx_primary_net = intrfc;  in ipxitf_create()
1015 			memset(intrfc->if_node, 0, IPX_NODE_LEN);  in ipxitf_create()
1016 			memcpy(intrfc->if_node + IPX_NODE_LEN - dev->addr_len,  in ipxitf_create()
1019 			memcpy(intrfc->if_node, idef->ipx_node, IPX_NODE_LEN);  in ipxitf_create()
1020 		ipxitf_hold(intrfc);  in ipxitf_create()
1021 		ipxitf_insert(intrfc);  in ipxitf_create()
1027 	if (!intrfc->if_netnum)  in ipxitf_create()
1030 	rc = ipxitf_add_local_route(intrfc);  in ipxitf_create()
1032 	ipxitf_put(intrfc);  in ipxitf_create()
1044 	struct ipx_interface *intrfc;  in ipxitf_delete()  local
1067 	intrfc = __ipxitf_find_using_phys(dev, dlink_type);  in ipxitf_delete()
1069 	if (!intrfc)  in ipxitf_delete()
1071 	__ipxitf_put(intrfc);  in ipxitf_delete()
1082 	struct ipx_interface *intrfc = NULL;  in ipxitf_auto_create()  local
1100 	intrfc = ipxitf_alloc(dev, 0, dlink_type, datalink, 0,  in ipxitf_auto_create()
1103 	if (intrfc) {  in ipxitf_auto_create()
1104 		memset(intrfc->if_node, 0, IPX_NODE_LEN);  in ipxitf_auto_create()
1105 		memcpy((char *)&(intrfc->if_node[IPX_NODE_LEN-dev->addr_len]),  in ipxitf_auto_create()
1107 		spin_lock_init(&intrfc->if_sklist_lock);  in ipxitf_auto_create()
1108 		atomic_set(&intrfc->refcnt, 1);  in ipxitf_auto_create()
1109 		ipxitf_insert(intrfc);  in ipxitf_auto_create()
1114 	return intrfc;  in ipxitf_auto_create()
1257 const char *ipx_device_name(struct ipx_interface *intrfc)  in ipx_device_name()  argument
1259 	return intrfc->if_internal ? "Internal" :  in ipx_device_name()
1260 		intrfc->if_dev ? intrfc->if_dev->name : "Unknown";  in ipx_device_name()
1387 static __be16 ipx_first_free_socketnum(struct ipx_interface *intrfc)  in ipx_first_free_socketnum()  argument
1389 	unsigned short socketNum = intrfc->if_sknum;  in ipx_first_free_socketnum()
1391 	spin_lock_bh(&intrfc->if_sklist_lock);  in ipx_first_free_socketnum()
1396 	while (__ipxitf_find_socket(intrfc, htons(socketNum)))  in ipx_first_free_socketnum()
1402 	spin_unlock_bh(&intrfc->if_sklist_lock);  in ipx_first_free_socketnum()
1403 	intrfc->if_sknum = socketNum;  in ipx_first_free_socketnum()
1413 	struct ipx_interface *intrfc;  in __ipx_bind()  local
1420 	intrfc = ipxitf_find_using_net(addr->sipx_network);  in __ipx_bind()
1422 	if (!intrfc)  in __ipx_bind()
1426 		addr->sipx_port = ipx_first_free_socketnum(intrfc);  in __ipx_bind()
1441 	if (intrfc == ipx_internal_net) {  in __ipx_bind()
1451 			memcpy(ipxs->node, intrfc->if_node, IPX_NODE_LEN);  in __ipx_bind()
1456 		if (ipxitf_find_internal_socket(intrfc, ipxs->node,  in __ipx_bind()
1469 		memcpy(ipxs->node, intrfc->if_node, IPX_NODE_LEN);  in __ipx_bind()
1472 		if (ipxitf_find_socket(intrfc, addr->sipx_port)) {  in __ipx_bind()
1486 	if (ipxitf_find_socket(intrfc, addr->sipx_port)) {  in __ipx_bind()
1494 	ipxitf_insert_socket(intrfc, sk);  in __ipx_bind()
1499 	ipxitf_put(intrfc);  in __ipx_bind()
1542 		if (!ipxs->intrfc)  in ipx_connect()
1544 		memcpy(uaddr.sipx_node, ipxs->intrfc->if_node,  in ipx_connect()
1602 		if (ipxs->intrfc) {  in ipx_getname()
1603 			sipx.sipx_network = ipxs->intrfc->if_netnum;  in ipx_getname()
1607 			memcpy(sipx.sipx_node, ipxs->intrfc->if_node,  in ipx_getname()
1633 	struct ipx_interface *intrfc;  in ipx_rcv()  local
1668 	intrfc = ipxitf_find_using_phys(dev, pt->type);  in ipx_rcv()
1669 	if (!intrfc) {  in ipx_rcv()
1672 			intrfc = ipxitf_auto_create(dev, pt->type);  in ipx_rcv()
1673 			if (intrfc)  in ipx_rcv()
1674 				ipxitf_hold(intrfc);  in ipx_rcv()
1677 		if (!intrfc)	/* Not one of ours */  in ipx_rcv()
1682 	rc = ipxitf_rcv(intrfc, skb);  in ipx_rcv()
1683 	ipxitf_put(intrfc);  in ipx_rcv()
1719 			if (!ipxs->intrfc)  in ipx_sendmsg()
1721 			memcpy(uaddr.sipx_node, ipxs->intrfc->if_node,  in ipx_sendmsg()
1777 		if (!ipxs->intrfc)  in ipx_recvmsg()
1779 		memcpy(uaddr.sipx_node, ipxs->intrfc->if_node, IPX_NODE_LEN);  in ipx_recvmsg()