252 	struct dn_dev *dn_db;  in dn_forwarding_proc()  local
259 	dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_forwarding_proc()
260 	old = dn_db->parms.forwarding;  in dn_forwarding_proc()
265 		if (dn_db->parms.forwarding < 0)  in dn_forwarding_proc()
266 			dn_db->parms.forwarding = 0;  in dn_forwarding_proc()
267 		if (dn_db->parms.forwarding > 2)  in dn_forwarding_proc()
268 			dn_db->parms.forwarding = 2;  in dn_forwarding_proc()
275 		tmp = dn_db->parms.forwarding;  in dn_forwarding_proc()
276 		dn_db->parms.forwarding = old;  in dn_forwarding_proc()
277 		if (dn_db->parms.down)  in dn_forwarding_proc()
278 			dn_db->parms.down(dev);  in dn_forwarding_proc()
279 		dn_db->parms.forwarding = tmp;  in dn_forwarding_proc()
280 		if (dn_db->parms.up)  in dn_forwarding_proc()
281 			dn_db->parms.up(dev);  in dn_forwarding_proc()
329 static void dn_dev_del_ifa(struct dn_dev *dn_db, struct dn_ifaddr __rcu **ifap, int destroy)  in dn_dev_del_ifa()  argument
333 	struct net_device *dev = dn_db->dev;  in dn_dev_del_ifa()
339 	if (dn_db->dev->type == ARPHRD_ETHER) {  in dn_dev_del_ifa()
351 		if (dn_db->ifa_list == NULL)  in dn_dev_del_ifa()
352 			dn_dev_delete(dn_db->dev);  in dn_dev_del_ifa()
356 static int dn_dev_insert_ifa(struct dn_dev *dn_db, struct dn_ifaddr *ifa)  in dn_dev_insert_ifa()  argument
358 	struct net_device *dev = dn_db->dev;  in dn_dev_insert_ifa()
365 	for (ifa1 = rtnl_dereference(dn_db->ifa_list);  in dn_dev_insert_ifa()
379 	ifa->ifa_next = dn_db->ifa_list;  in dn_dev_insert_ifa()
380 	rcu_assign_pointer(dn_db->ifa_list, ifa);  in dn_dev_insert_ifa()
390 	struct dn_dev *dn_db = rtnl_dereference(dev->dn_ptr);  in dn_dev_set_ifa()  local
393 	if (dn_db == NULL) {  in dn_dev_set_ifa()
395 		dn_db = dn_dev_create(dev, &err);  in dn_dev_set_ifa()
396 		if (dn_db == NULL)  in dn_dev_set_ifa()
400 	ifa->ifa_dev = dn_db;  in dn_dev_set_ifa()
405 	rv = dn_dev_insert_ifa(dn_db, ifa);  in dn_dev_set_ifa()
417 	struct dn_dev *dn_db;  in dn_dev_ioctl()  local
449 	if ((dn_db = rtnl_dereference(dev->dn_ptr)) != NULL) {  in dn_dev_ioctl()
450 		for (ifap = &dn_db->ifa_list;  in dn_dev_ioctl()
479 			dn_dev_del_ifa(dn_db, ifap, 0);  in dn_dev_ioctl()
571 	struct dn_dev *dn_db;  in dn_nl_deladdr()  local
590 	if ((dn_db = dn_dev_by_index(ifm->ifa_index)) == NULL)  in dn_nl_deladdr()
594 	for (ifap = &dn_db->ifa_list;  in dn_nl_deladdr()
604 		dn_dev_del_ifa(dn_db, ifap, 1);  in dn_nl_deladdr()
618 	struct dn_dev *dn_db;  in dn_nl_newaddr()  local
641 	if ((dn_db = rtnl_dereference(dev->dn_ptr)) == NULL) {  in dn_nl_newaddr()
642 		dn_db = dn_dev_create(dev, &err);  in dn_nl_newaddr()
643 		if (!dn_db)  in dn_nl_newaddr()
658 	ifa->ifa_dev = dn_db;  in dn_nl_newaddr()
665 	err = dn_dev_insert_ifa(dn_db, ifa);  in dn_nl_newaddr()
743 	struct dn_dev *dn_db;  in dn_nl_dump_ifaddr()  local
763 		if ((dn_db = rcu_dereference(dev->dn_ptr)) == NULL)  in dn_nl_dump_ifaddr()
766 		for (ifa = rcu_dereference(dn_db->ifa_list), dn_idx = 0; ifa;  in dn_nl_dump_ifaddr()
789 	struct dn_dev *dn_db;  in dn_dev_get_first()  local
794 	dn_db = rcu_dereference(dev->dn_ptr);  in dn_dev_get_first()
795 	if (dn_db == NULL)  in dn_dev_get_first()
798 	ifa = rcu_dereference(dn_db->ifa_list);  in dn_dev_get_first()
840 	struct dn_dev *dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_send_endnode_hello()  local
858 	if (dn_db->router) {  in dn_send_endnode_hello()
859 		struct dn_neigh *dn = (struct dn_neigh *)dn_db->router;  in dn_send_endnode_hello()
863 	msg->timer   = cpu_to_le16((unsigned short)dn_db->parms.t3);  in dn_send_endnode_hello()
879 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
882 	if (time_before(jiffies, dn_db->uptime + DRDELAY))  in dn_am_i_a_router()
886 	if (!dn_db->router)  in dn_am_i_a_router()
890 	if (dn->priority < dn_db->parms.priority)  in dn_am_i_a_router()
894 	if (dn->priority != dn_db->parms.priority)  in dn_am_i_a_router()
906 	struct dn_dev *dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_send_router_hello()  local
907 	struct dn_neigh *dn = (struct dn_neigh *)dn_db->router;  in dn_send_router_hello()
939 	*ptr++ = dn_db->parms.forwarding == 1 ?  in dn_send_router_hello()
943 	*ptr++ = dn_db->parms.priority; /* Priority */  in dn_send_router_hello()
945 	*((__le16 *)ptr) = cpu_to_le16((unsigned short)dn_db->parms.t3);  in dn_send_router_hello()
965 	if (dn_am_i_a_router(dn, dn_db, ifa)) {  in dn_send_router_hello()
977 	struct dn_dev *dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_send_brd_hello()  local
979 	if (dn_db->parms.forwarding == 0)  in dn_send_brd_hello()
1015 	struct dn_dev *dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_eth_up()  local
1017 	if (dn_db->parms.forwarding == 0)  in dn_eth_up()
1022 	dn_db->use_long = 1;  in dn_eth_up()
1029 	struct dn_dev *dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_eth_down()  local
1031 	if (dn_db->parms.forwarding == 0)  in dn_eth_down()
1041 	struct dn_dev *dn_db = from_timer(dn_db, t, timer);  in dn_dev_timer_func()  local
1046 	dev = dn_db->dev;  in dn_dev_timer_func()
1047 	if (dn_db->t3 <= dn_db->parms.t2) {  in dn_dev_timer_func()
1048 		if (dn_db->parms.timer3) {  in dn_dev_timer_func()
1049 			for (ifa = rcu_dereference(dn_db->ifa_list);  in dn_dev_timer_func()
1053 					dn_db->parms.timer3(dev, ifa);  in dn_dev_timer_func()
1056 		dn_db->t3 = dn_db->parms.t3;  in dn_dev_timer_func()
1058 		dn_db->t3 -= dn_db->parms.t2;  in dn_dev_timer_func()
1066 	struct dn_dev *dn_db = rcu_dereference_raw(dev->dn_ptr);  in dn_dev_set_timer()  local
1068 	if (dn_db->parms.t2 > dn_db->parms.t3)  in dn_dev_set_timer()
1069 		dn_db->parms.t2 = dn_db->parms.t3;  in dn_dev_set_timer()
1071 	dn_db->timer.expires = jiffies + (dn_db->parms.t2 * HZ);  in dn_dev_set_timer()
1073 	add_timer(&dn_db->timer);  in dn_dev_set_timer()
1080 	struct dn_dev *dn_db;  in dn_dev_create()  local
1092 	if ((dn_db = kzalloc(sizeof(struct dn_dev), GFP_ATOMIC)) == NULL)  in dn_dev_create()
1095 	memcpy(&dn_db->parms, p, sizeof(struct dn_dev_parms));  in dn_dev_create()
1097 	rcu_assign_pointer(dev->dn_ptr, dn_db);  in dn_dev_create()
1098 	dn_db->dev = dev;  in dn_dev_create()
1099 	timer_setup(&dn_db->timer, dn_dev_timer_func, 0);  in dn_dev_create()
1101 	dn_db->uptime = jiffies;  in dn_dev_create()
1103 	dn_db->neigh_parms = neigh_parms_alloc(dev, &dn_neigh_table);  in dn_dev_create()
1104 	if (!dn_db->neigh_parms) {  in dn_dev_create()
1106 		kfree(dn_db);  in dn_dev_create()
1110 	if (dn_db->parms.up) {  in dn_dev_create()
1111 		if (dn_db->parms.up(dev) < 0) {  in dn_dev_create()
1112 			neigh_parms_release(&dn_neigh_table, dn_db->neigh_parms);  in dn_dev_create()
1114 			kfree(dn_db);  in dn_dev_create()
1119 	dn_dev_sysctl_register(dev, &dn_db->parms);  in dn_dev_create()
1124 	return dn_db;  in dn_dev_create()
1144 	struct dn_dev *dn_db = rtnl_dereference(dev->dn_ptr);  in dn_dev_up()  local
1155 	if (dn_db == NULL) {  in dn_dev_up()
1157 		dn_db = dn_dev_create(dev, &err);  in dn_dev_up()
1158 		if (dn_db == NULL)  in dn_dev_up()
1195 	struct dn_dev *dn_db = rtnl_dereference(dev->dn_ptr);  in dn_dev_delete()  local
1197 	if (dn_db == NULL)  in dn_dev_delete()
1200 	del_timer_sync(&dn_db->timer);  in dn_dev_delete()
1201 	dn_dev_sysctl_unregister(&dn_db->parms);  in dn_dev_delete()
1205 	if (dn_db->parms.down)  in dn_dev_delete()
1206 		dn_db->parms.down(dev);  in dn_dev_delete()
1210 	neigh_parms_release(&dn_neigh_table, dn_db->neigh_parms);  in dn_dev_delete()
1213 	if (dn_db->router)  in dn_dev_delete()
1214 		neigh_release(dn_db->router);  in dn_dev_delete()
1215 	if (dn_db->peer)  in dn_dev_delete()
1216 		neigh_release(dn_db->peer);  in dn_dev_delete()
1218 	kfree(dn_db);  in dn_dev_delete()
1223 	struct dn_dev *dn_db = rtnl_dereference(dev->dn_ptr);  in dn_dev_down()  local
1226 	if (dn_db == NULL)  in dn_dev_down()
1229 	while ((ifa = rtnl_dereference(dn_db->ifa_list)) != NULL) {  in dn_dev_down()
1230 		dn_dev_del_ifa(dn_db, &dn_db->ifa_list, 0);  in dn_dev_down()
1359 		struct dn_dev *dn_db = rcu_dereference(dev->dn_ptr);  in dn_dev_seq_show()  local
1364 				dn_type2asc(dn_db->parms.mode),  in dn_dev_seq_show()
1366 				dn_db->t3, dn_db->parms.t3,  in dn_dev_seq_show()
1368 				dn_db->parms.priority,  in dn_dev_seq_show()
1369 				dn_db->parms.state, dn_db->parms.name,  in dn_dev_seq_show()
1370 …		dn_db->router ? dn_addr2asc(le16_to_cpu(*(__le16 *)dn_db->router->primary_key), router_buf) : "",  in dn_dev_seq_show()
1371 				dn_db->peer ? dn_addr2asc(le16_to_cpu(*(__le16 *)dn_db->peer->primary_key), peer_buf) : "");  in dn_dev_seq_show()