253 	struct dn_dev *dn_db;  in dn_forwarding_proc()  local
260 	dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_forwarding_proc()
261 	old = dn_db->parms.forwarding;  in dn_forwarding_proc()
266 		if (dn_db->parms.forwarding < 0)  in dn_forwarding_proc()
267 			dn_db->parms.forwarding = 0;  in dn_forwarding_proc()
268 		if (dn_db->parms.forwarding > 2)  in dn_forwarding_proc()
269 			dn_db->parms.forwarding = 2;  in dn_forwarding_proc()
276 		tmp = dn_db->parms.forwarding;  in dn_forwarding_proc()
277 		dn_db->parms.forwarding = old;  in dn_forwarding_proc()
278 		if (dn_db->parms.down)  in dn_forwarding_proc()
279 			dn_db->parms.down(dev);  in dn_forwarding_proc()
280 		dn_db->parms.forwarding = tmp;  in dn_forwarding_proc()
281 		if (dn_db->parms.up)  in dn_forwarding_proc()
282 			dn_db->parms.up(dev);  in dn_forwarding_proc()
330 static void dn_dev_del_ifa(struct dn_dev *dn_db, struct dn_ifaddr __rcu **ifap, int destroy)  in dn_dev_del_ifa()  argument
334 	struct net_device *dev = dn_db->dev;  in dn_dev_del_ifa()
340 	if (dn_db->dev->type == ARPHRD_ETHER) {  in dn_dev_del_ifa()
352 		if (dn_db->ifa_list == NULL)  in dn_dev_del_ifa()
353 			dn_dev_delete(dn_db->dev);  in dn_dev_del_ifa()
357 static int dn_dev_insert_ifa(struct dn_dev *dn_db, struct dn_ifaddr *ifa)  in dn_dev_insert_ifa()  argument
359 	struct net_device *dev = dn_db->dev;  in dn_dev_insert_ifa()
366 	for (ifa1 = rtnl_dereference(dn_db->ifa_list);  in dn_dev_insert_ifa()
380 	ifa->ifa_next = dn_db->ifa_list;  in dn_dev_insert_ifa()
381 	rcu_assign_pointer(dn_db->ifa_list, ifa);  in dn_dev_insert_ifa()
391 	struct dn_dev *dn_db = rtnl_dereference(dev->dn_ptr);  in dn_dev_set_ifa()  local
394 	if (dn_db == NULL) {  in dn_dev_set_ifa()
396 		dn_db = dn_dev_create(dev, &err);  in dn_dev_set_ifa()
397 		if (dn_db == NULL)  in dn_dev_set_ifa()
401 	ifa->ifa_dev = dn_db;  in dn_dev_set_ifa()
406 	rv = dn_dev_insert_ifa(dn_db, ifa);  in dn_dev_set_ifa()
418 	struct dn_dev *dn_db;  in dn_dev_ioctl()  local
450 	if ((dn_db = rtnl_dereference(dev->dn_ptr)) != NULL) {  in dn_dev_ioctl()
451 		for (ifap = &dn_db->ifa_list;  in dn_dev_ioctl()
478 			dn_dev_del_ifa(dn_db, ifap, 0);  in dn_dev_ioctl()
574 	struct dn_dev *dn_db;  in dn_nl_deladdr()  local
593 	if ((dn_db = dn_dev_by_index(ifm->ifa_index)) == NULL)  in dn_nl_deladdr()
597 	for (ifap = &dn_db->ifa_list;  in dn_nl_deladdr()
607 		dn_dev_del_ifa(dn_db, ifap, 1);  in dn_nl_deladdr()
621 	struct dn_dev *dn_db;  in dn_nl_newaddr()  local
644 	if ((dn_db = rtnl_dereference(dev->dn_ptr)) == NULL) {  in dn_nl_newaddr()
645 		dn_db = dn_dev_create(dev, &err);  in dn_nl_newaddr()
646 		if (!dn_db)  in dn_nl_newaddr()
661 	ifa->ifa_dev = dn_db;  in dn_nl_newaddr()
668 	err = dn_dev_insert_ifa(dn_db, ifa);  in dn_nl_newaddr()
746 	struct dn_dev *dn_db;  in dn_nl_dump_ifaddr()  local
766 		if ((dn_db = rcu_dereference(dev->dn_ptr)) == NULL)  in dn_nl_dump_ifaddr()
769 		for (ifa = rcu_dereference(dn_db->ifa_list), dn_idx = 0; ifa;  in dn_nl_dump_ifaddr()
792 	struct dn_dev *dn_db;  in dn_dev_get_first()  local
797 	dn_db = rcu_dereference(dev->dn_ptr);  in dn_dev_get_first()
798 	if (dn_db == NULL)  in dn_dev_get_first()
801 	ifa = rcu_dereference(dn_db->ifa_list);  in dn_dev_get_first()
843 	struct dn_dev *dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_send_endnode_hello()  local
861 	if (dn_db->router) {  in dn_send_endnode_hello()
862 		struct dn_neigh *dn = (struct dn_neigh *)dn_db->router;  in dn_send_endnode_hello()
866 	msg->timer   = cpu_to_le16((unsigned short)dn_db->parms.t3);  in dn_send_endnode_hello()
882 static int dn_am_i_a_router(struct dn_neigh *dn, struct dn_dev *dn_db, struct dn_ifaddr *ifa)  in dn_am_i_a_router()  argument
885 	if (time_before(jiffies, dn_db->uptime + DRDELAY))  in dn_am_i_a_router()
889 	if (!dn_db->router)  in dn_am_i_a_router()
893 	if (dn->priority < dn_db->parms.priority)  in dn_am_i_a_router()
897 	if (dn->priority != dn_db->parms.priority)  in dn_am_i_a_router()
909 	struct dn_dev *dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_send_router_hello()  local
910 	struct dn_neigh *dn = (struct dn_neigh *)dn_db->router;  in dn_send_router_hello()
942 	*ptr++ = dn_db->parms.forwarding == 1 ?  in dn_send_router_hello()
946 	*ptr++ = dn_db->parms.priority; /* Priority */  in dn_send_router_hello()
948 	*((__le16 *)ptr) = cpu_to_le16((unsigned short)dn_db->parms.t3);  in dn_send_router_hello()
968 	if (dn_am_i_a_router(dn, dn_db, ifa)) {  in dn_send_router_hello()
980 	struct dn_dev *dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_send_brd_hello()  local
982 	if (dn_db->parms.forwarding == 0)  in dn_send_brd_hello()
1018 	struct dn_dev *dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_eth_up()  local
1020 	if (dn_db->parms.forwarding == 0)  in dn_eth_up()
1025 	dn_db->use_long = 1;  in dn_eth_up()
1032 	struct dn_dev *dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_eth_down()  local
1034 	if (dn_db->parms.forwarding == 0)  in dn_eth_down()
1044 	struct dn_dev *dn_db = from_timer(dn_db, t, timer);  in dn_dev_timer_func()  local
1049 	dev = dn_db->dev;  in dn_dev_timer_func()
1050 	if (dn_db->t3 <= dn_db->parms.t2) {  in dn_dev_timer_func()
1051 		if (dn_db->parms.timer3) {  in dn_dev_timer_func()
1052 			for (ifa = rcu_dereference(dn_db->ifa_list);  in dn_dev_timer_func()
1056 					dn_db->parms.timer3(dev, ifa);  in dn_dev_timer_func()
1059 		dn_db->t3 = dn_db->parms.t3;  in dn_dev_timer_func()
1061 		dn_db->t3 -= dn_db->parms.t2;  in dn_dev_timer_func()
1069 	struct dn_dev *dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_dev_set_timer()  local
1071 	if (dn_db->parms.t2 > dn_db->parms.t3)  in dn_dev_set_timer()
1072 		dn_db->parms.t2 = dn_db->parms.t3;  in dn_dev_set_timer()
1074 	dn_db->timer.expires = jiffies + (dn_db->parms.t2 * HZ);  in dn_dev_set_timer()
1076 	add_timer(&dn_db->timer);  in dn_dev_set_timer()
1083 	struct dn_dev *dn_db;  in dn_dev_create()  local
1095 	if ((dn_db = kzalloc(sizeof(struct dn_dev), GFP_ATOMIC)) == NULL)  in dn_dev_create()
1098 	memcpy(&dn_db->parms, p, sizeof(struct dn_dev_parms));  in dn_dev_create()
1100 	rcu_assign_pointer(dev->dn_ptr, dn_db);  in dn_dev_create()
1101 	dn_db->dev = dev;  in dn_dev_create()
1102 	timer_setup(&dn_db->timer, dn_dev_timer_func, 0);  in dn_dev_create()
1104 	dn_db->uptime = jiffies;  in dn_dev_create()
1106 	dn_db->neigh_parms = neigh_parms_alloc(dev, &dn_neigh_table);  in dn_dev_create()
1107 	if (!dn_db->neigh_parms) {  in dn_dev_create()
1109 		kfree(dn_db);  in dn_dev_create()
1113 	if (dn_db->parms.up) {  in dn_dev_create()
1114 		if (dn_db->parms.up(dev) < 0) {  in dn_dev_create()
1115 			neigh_parms_release(&dn_neigh_table, dn_db->neigh_parms);  in dn_dev_create()
1117 			kfree(dn_db);  in dn_dev_create()
1122 	dn_dev_sysctl_register(dev, &dn_db->parms);  in dn_dev_create()
1127 	return dn_db;  in dn_dev_create()
1147 	struct dn_dev *dn_db = rtnl_dereference(dev->dn_ptr);  in dn_dev_up()  local
1158 	if (dn_db == NULL) {  in dn_dev_up()
1160 		dn_db = dn_dev_create(dev, &err);  in dn_dev_up()
1161 		if (dn_db == NULL)  in dn_dev_up()
1198 	struct dn_dev *dn_db = rtnl_dereference(dev->dn_ptr);  in dn_dev_delete()  local
1200 	if (dn_db == NULL)  in dn_dev_delete()
1203 	del_timer_sync(&dn_db->timer);  in dn_dev_delete()
1204 	dn_dev_sysctl_unregister(&dn_db->parms);  in dn_dev_delete()
1208 	if (dn_db->parms.down)  in dn_dev_delete()
1209 		dn_db->parms.down(dev);  in dn_dev_delete()
1213 	neigh_parms_release(&dn_neigh_table, dn_db->neigh_parms);  in dn_dev_delete()
1216 	if (dn_db->router)  in dn_dev_delete()
1217 		neigh_release(dn_db->router);  in dn_dev_delete()
1218 	if (dn_db->peer)  in dn_dev_delete()
1219 		neigh_release(dn_db->peer);  in dn_dev_delete()
1221 	kfree(dn_db);  in dn_dev_delete()
1226 	struct dn_dev *dn_db = rtnl_dereference(dev->dn_ptr);  in dn_dev_down()  local
1229 	if (dn_db == NULL)  in dn_dev_down()
1232 	while ((ifa = rtnl_dereference(dn_db->ifa_list)) != NULL) {  in dn_dev_down()
1233 		dn_dev_del_ifa(dn_db, &dn_db->ifa_list, 0);  in dn_dev_down()
1362 		struct dn_dev *dn_db = rcu_dereference(dev->dn_ptr);  in dn_dev_seq_show()  local
1367 				dn_type2asc(dn_db->parms.mode),  in dn_dev_seq_show()
1369 				dn_db->t3, dn_db->parms.t3,  in dn_dev_seq_show()
1371 				dn_db->parms.priority,  in dn_dev_seq_show()
1372 				dn_db->parms.state, dn_db->parms.name,  in dn_dev_seq_show()
1373 …		dn_db->router ? dn_addr2asc(le16_to_cpu(*(__le16 *)dn_db->router->primary_key), router_buf) : "",  in dn_dev_seq_show()
1374 				dn_db->peer ? dn_addr2asc(le16_to_cpu(*(__le16 *)dn_db->peer->primary_key), peer_buf) : "");  in dn_dev_seq_show()