1 // SPDX-License-Identifier: GPL-2.0
34 #include "distributed-arp-table.h"
37 #include "hard-interface.h"
42 #include "network-coding.h"
44 #include "soft-interface.h"
45 #include "translation-table.h"
51  * batadv_orig_hash_find() - Find and return originator from orig_hash
52  * @bat_priv: the bat priv with all the soft interface information
60 	struct batadv_hashtable *hash = bat_priv->orig_hash;  in batadv_orig_hash_find()
68 	index = batadv_choose_orig(data, hash->size);  in batadv_orig_hash_find()
69 	head = &hash->table[index];  in batadv_orig_hash_find()
76 		if (!kref_get_unless_zero(&orig_node->refcount))  in batadv_orig_hash_find()
90  * batadv_compare_orig() - comparing function used in the originator hash table
91  * @node: node in the local table
92  * @data2: second object to compare the node to
96 bool batadv_compare_orig(const struct hlist_node *node, const void *data2)  in batadv_compare_orig()  argument
98 	const void *data1 = container_of(node, struct batadv_orig_node,  in batadv_compare_orig()
105  * batadv_orig_node_vlan_get() - get an orig_node_vlan object
119 	hlist_for_each_entry_rcu(tmp, &orig_node->vlan_list, list) {  in batadv_orig_node_vlan_get()
120 		if (tmp->vid != vid)  in batadv_orig_node_vlan_get()
123 		if (!kref_get_unless_zero(&tmp->refcount))  in batadv_orig_node_vlan_get()
136  * batadv_vlan_id_valid() - check if vlan id is in valid batman-adv encoding
159  * batadv_orig_node_vlan_new() - search and possibly create an orig_node_vlan
179 	spin_lock_bh(&orig_node->vlan_list_lock);  in batadv_orig_node_vlan_new()
190 	kref_init(&vlan->refcount);  in batadv_orig_node_vlan_new()
191 	vlan->vid = vid;  in batadv_orig_node_vlan_new()
193 	kref_get(&vlan->refcount);  in batadv_orig_node_vlan_new()
194 	hlist_add_head_rcu(&vlan->list, &orig_node->vlan_list);  in batadv_orig_node_vlan_new()
197 	spin_unlock_bh(&orig_node->vlan_list_lock);  in batadv_orig_node_vlan_new()
203  * batadv_orig_node_vlan_release() - release originator-vlan object from lists
205  * @ref: kref pointer of the originator-vlan object
217  * batadv_originator_init() - Initialize all originator structures
218  * @bat_priv: the bat priv with all the soft interface information
224 	if (bat_priv->orig_hash)  in batadv_originator_init()
227 	bat_priv->orig_hash = batadv_hash_new(1024);  in batadv_originator_init()
229 	if (!bat_priv->orig_hash)  in batadv_originator_init()
232 	batadv_hash_set_lock_class(bat_priv->orig_hash,  in batadv_originator_init()
235 	INIT_DELAYED_WORK(&bat_priv->orig_work, batadv_purge_orig);  in batadv_originator_init()
237 			   &bat_priv->orig_work,  in batadv_originator_init()
243 	return -ENOMEM;  in batadv_originator_init()
247  * batadv_neigh_ifinfo_release() - release neigh_ifinfo from lists and queue for
257 	if (neigh_ifinfo->if_outgoing != BATADV_IF_DEFAULT)  in batadv_neigh_ifinfo_release()
258 		batadv_hardif_put(neigh_ifinfo->if_outgoing);  in batadv_neigh_ifinfo_release()
264  * batadv_hardif_neigh_release() - release hardif neigh node from lists and
275 	spin_lock_bh(&hardif_neigh->if_incoming->neigh_list_lock);  in batadv_hardif_neigh_release()
276 	hlist_del_init_rcu(&hardif_neigh->list);  in batadv_hardif_neigh_release()
277 	spin_unlock_bh(&hardif_neigh->if_incoming->neigh_list_lock);  in batadv_hardif_neigh_release()
279 	batadv_hardif_put(hardif_neigh->if_incoming);  in batadv_hardif_neigh_release()
284  * batadv_neigh_node_release() - release neigh_node from lists and queue for
297 				  &neigh_node->ifinfo_list, list) {  in batadv_neigh_node_release()
301 	batadv_hardif_neigh_put(neigh_node->hardif_neigh);  in batadv_neigh_node_release()
303 	batadv_hardif_put(neigh_node->if_incoming);  in batadv_neigh_node_release()
309  * batadv_orig_router_get() - router to the originator depending on iface
310  * @orig_node: the orig node for the router
311  * @if_outgoing: the interface where the payload packet has been received or
326 	hlist_for_each_entry_rcu(orig_ifinfo, &orig_node->ifinfo_list, list) {  in batadv_orig_router_get()
327 		if (orig_ifinfo->if_outgoing != if_outgoing)  in batadv_orig_router_get()
330 		router = rcu_dereference(orig_ifinfo->router);  in batadv_orig_router_get()
334 	if (router && !kref_get_unless_zero(&router->refcount))  in batadv_orig_router_get()
342  * batadv_orig_to_router() - get next hop neighbor to an orig address
343  * @bat_priv: the bat priv with all the soft interface information
345  * @if_outgoing: the interface where the payload packet has been received or
348  * Return: A neighbor node which is the best router towards the given originator
369  * batadv_orig_ifinfo_get() - find the ifinfo from an orig_node
370  * @orig_node: the orig node to be queried
371  * @if_outgoing: the interface for which the ifinfo should be acquired
384 	hlist_for_each_entry_rcu(tmp, &orig_node->ifinfo_list,  in batadv_orig_ifinfo_get()
386 		if (tmp->if_outgoing != if_outgoing)  in batadv_orig_ifinfo_get()
389 		if (!kref_get_unless_zero(&tmp->refcount))  in batadv_orig_ifinfo_get()
401  * batadv_orig_ifinfo_new() - search and possibly create an orig_ifinfo object
402  * @orig_node: the orig node to be queried
403  * @if_outgoing: the interface for which the ifinfo should be acquired
406  * interface otherwise. The object is created and added to the list
418 	spin_lock_bh(&orig_node->neigh_list_lock);  in batadv_orig_ifinfo_new()
429 		kref_get(&if_outgoing->refcount);  in batadv_orig_ifinfo_new()
431 	reset_time = jiffies - 1;  in batadv_orig_ifinfo_new()
432 	reset_time -= msecs_to_jiffies(BATADV_RESET_PROTECTION_MS);  in batadv_orig_ifinfo_new()
433 	orig_ifinfo->batman_seqno_reset = reset_time;  in batadv_orig_ifinfo_new()
434 	orig_ifinfo->if_outgoing = if_outgoing;  in batadv_orig_ifinfo_new()
435 	INIT_HLIST_NODE(&orig_ifinfo->list);  in batadv_orig_ifinfo_new()
436 	kref_init(&orig_ifinfo->refcount);  in batadv_orig_ifinfo_new()
438 	kref_get(&orig_ifinfo->refcount);  in batadv_orig_ifinfo_new()
439 	hlist_add_head_rcu(&orig_ifinfo->list,  in batadv_orig_ifinfo_new()
440 			   &orig_node->ifinfo_list);  in batadv_orig_ifinfo_new()
442 	spin_unlock_bh(&orig_node->neigh_list_lock);  in batadv_orig_ifinfo_new()
447  * batadv_neigh_ifinfo_get() - find the ifinfo from an neigh_node
448  * @neigh: the neigh node to be queried
449  * @if_outgoing: the interface for which the ifinfo should be acquired
463 	hlist_for_each_entry_rcu(tmp_neigh_ifinfo, &neigh->ifinfo_list,  in batadv_neigh_ifinfo_get()
465 		if (tmp_neigh_ifinfo->if_outgoing != if_outgoing)  in batadv_neigh_ifinfo_get()
468 		if (!kref_get_unless_zero(&tmp_neigh_ifinfo->refcount))  in batadv_neigh_ifinfo_get()
480  * batadv_neigh_ifinfo_new() - search and possibly create an neigh_ifinfo object
481  * @neigh: the neigh node to be queried
482  * @if_outgoing: the interface for which the ifinfo should be acquired
485  * if_outgoing interface otherwise. The object is created and added to the list
496 	spin_lock_bh(&neigh->ifinfo_lock);  in batadv_neigh_ifinfo_new()
507 		kref_get(&if_outgoing->refcount);  in batadv_neigh_ifinfo_new()
509 	INIT_HLIST_NODE(&neigh_ifinfo->list);  in batadv_neigh_ifinfo_new()
510 	kref_init(&neigh_ifinfo->refcount);  in batadv_neigh_ifinfo_new()
511 	neigh_ifinfo->if_outgoing = if_outgoing;  in batadv_neigh_ifinfo_new()
513 	kref_get(&neigh_ifinfo->refcount);  in batadv_neigh_ifinfo_new()
514 	hlist_add_head_rcu(&neigh_ifinfo->list, &neigh->ifinfo_list);  in batadv_neigh_ifinfo_new()
517 	spin_unlock_bh(&neigh->ifinfo_lock);  in batadv_neigh_ifinfo_new()
523  * batadv_neigh_node_get() - retrieve a neighbour from the list
525  * @hard_iface: the interface where this neighbour is connected to
529  * which is connected through the provided hard interface.
541 	hlist_for_each_entry_rcu(tmp_neigh_node, &orig_node->neigh_list, list) {  in batadv_neigh_node_get()
542 		if (!batadv_compare_eth(tmp_neigh_node->addr, addr))  in batadv_neigh_node_get()
545 		if (tmp_neigh_node->if_incoming != hard_iface)  in batadv_neigh_node_get()
548 		if (!kref_get_unless_zero(&tmp_neigh_node->refcount))  in batadv_neigh_node_get()
560  * batadv_hardif_neigh_create() - create a hardif neighbour node
561  * @hard_iface: the interface this neighbour is connected to
562  * @neigh_addr: the interface address of the neighbour to retrieve
565  * Return: the hardif neighbour node if found or created or NULL otherwise.
572 	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hardif_neigh_create()
575 	spin_lock_bh(&hard_iface->neigh_list_lock);  in batadv_hardif_neigh_create()
586 	kref_get(&hard_iface->refcount);  in batadv_hardif_neigh_create()
587 	INIT_HLIST_NODE(&hardif_neigh->list);  in batadv_hardif_neigh_create()
588 	ether_addr_copy(hardif_neigh->addr, neigh_addr);  in batadv_hardif_neigh_create()
589 	ether_addr_copy(hardif_neigh->orig, orig_node->orig);  in batadv_hardif_neigh_create()
590 	hardif_neigh->if_incoming = hard_iface;  in batadv_hardif_neigh_create()
591 	hardif_neigh->last_seen = jiffies;  in batadv_hardif_neigh_create()
593 	kref_init(&hardif_neigh->refcount);  in batadv_hardif_neigh_create()
595 	if (bat_priv->algo_ops->neigh.hardif_init)  in batadv_hardif_neigh_create()
596 		bat_priv->algo_ops->neigh.hardif_init(hardif_neigh);  in batadv_hardif_neigh_create()
598 	hlist_add_head_rcu(&hardif_neigh->list, &hard_iface->neigh_list);  in batadv_hardif_neigh_create()
601 	spin_unlock_bh(&hard_iface->neigh_list_lock);  in batadv_hardif_neigh_create()
606  * batadv_hardif_neigh_get_or_create() - retrieve or create a hardif neighbour
607  *  node
608  * @hard_iface: the interface this neighbour is connected to
609  * @neigh_addr: the interface address of the neighbour to retrieve
612  * Return: the hardif neighbour node if found or created or NULL otherwise.
630  * batadv_hardif_neigh_get() - retrieve a hardif neighbour from the list
631  * @hard_iface: the interface where this neighbour is connected to
634  * Looks for and possibly returns a neighbour belonging to this hard interface.
646 				 &hard_iface->neigh_list, list) {  in batadv_hardif_neigh_get()
647 		if (!batadv_compare_eth(tmp_hardif_neigh->addr, neigh_addr))  in batadv_hardif_neigh_get()
650 		if (!kref_get_unless_zero(&tmp_hardif_neigh->refcount))  in batadv_hardif_neigh_get()
662  * batadv_neigh_node_create() - create a neigh node object
664  * @hard_iface: the interface where the neighbour is connected to
665  * @neigh_addr: the mac address of the neighbour interface
669  * Return: the neighbour node if found or created or NULL otherwise.
679 	spin_lock_bh(&orig_node->neigh_list_lock);  in batadv_neigh_node_create()
694 	INIT_HLIST_NODE(&neigh_node->list);  in batadv_neigh_node_create()
695 	INIT_HLIST_HEAD(&neigh_node->ifinfo_list);  in batadv_neigh_node_create()
696 	spin_lock_init(&neigh_node->ifinfo_lock);  in batadv_neigh_node_create()
698 	kref_get(&hard_iface->refcount);  in batadv_neigh_node_create()
699 	ether_addr_copy(neigh_node->addr, neigh_addr);  in batadv_neigh_node_create()
700 	neigh_node->if_incoming = hard_iface;  in batadv_neigh_node_create()
701 	neigh_node->orig_node = orig_node;  in batadv_neigh_node_create()
702 	neigh_node->last_seen = jiffies;  in batadv_neigh_node_create()
705 	kref_get(&hardif_neigh->refcount);  in batadv_neigh_node_create()
706 	neigh_node->hardif_neigh = hardif_neigh;  in batadv_neigh_node_create()
709 	kref_init(&neigh_node->refcount);  in batadv_neigh_node_create()
711 	kref_get(&neigh_node->refcount);  in batadv_neigh_node_create()
712 	hlist_add_head_rcu(&neigh_node->list, &orig_node->neigh_list);  in batadv_neigh_node_create()
714 	batadv_dbg(BATADV_DBG_BATMAN, orig_node->bat_priv,  in batadv_neigh_node_create()
715 		   "Creating new neighbor %pM for orig_node %pM on interface %s\n",  in batadv_neigh_node_create()
716 		   neigh_addr, orig_node->orig, hard_iface->net_dev->name);  in batadv_neigh_node_create()
719 	spin_unlock_bh(&orig_node->neigh_list_lock);  in batadv_neigh_node_create()
726  * batadv_neigh_node_get_or_create() - retrieve or create a neigh node object
728  * @hard_iface: the interface where the neighbour is connected to
729  * @neigh_addr: the mac address of the neighbour interface
731  * Return: the neighbour node if found or created or NULL otherwise.
749  * batadv_hardif_neigh_dump() - Dump to netlink the neighbor infos for a
750  *  specific outgoing interface
758 	struct net *net = sock_net(cb->skb->sk);  in batadv_hardif_neigh_dump()
767 	ifindex = batadv_netlink_get_ifindex(cb->nlh, BATADV_ATTR_MESH_IFINDEX);  in batadv_hardif_neigh_dump()
769 		return -EINVAL;  in batadv_hardif_neigh_dump()
773 		ret = -ENODEV;  in batadv_hardif_neigh_dump()
780 	if (!primary_if || primary_if->if_status != BATADV_IF_ACTIVE) {  in batadv_hardif_neigh_dump()
781 		ret = -ENOENT;  in batadv_hardif_neigh_dump()
785 	hard_ifindex = batadv_netlink_get_ifindex(cb->nlh,  in batadv_hardif_neigh_dump()
793 			ret = -ENODEV;  in batadv_hardif_neigh_dump()
797 		if (hardif->soft_iface != soft_iface) {  in batadv_hardif_neigh_dump()
798 			ret = -ENOENT;  in batadv_hardif_neigh_dump()
803 	if (!bat_priv->algo_ops->neigh.dump) {  in batadv_hardif_neigh_dump()
804 		ret = -EOPNOTSUPP;  in batadv_hardif_neigh_dump()
808 	bat_priv->algo_ops->neigh.dump(msg, cb, bat_priv, hardif);  in batadv_hardif_neigh_dump()
810 	ret = msg->len;  in batadv_hardif_neigh_dump()
822  * batadv_orig_ifinfo_release() - release orig_ifinfo from lists and queue for
833 	if (orig_ifinfo->if_outgoing != BATADV_IF_DEFAULT)  in batadv_orig_ifinfo_release()
834 		batadv_hardif_put(orig_ifinfo->if_outgoing);  in batadv_orig_ifinfo_release()
837 	router = rcu_dereference_protected(orig_ifinfo->router, true);  in batadv_orig_ifinfo_release()
844  * batadv_orig_node_free_rcu() - free the orig_node
857 	kfree(orig_node->tt_buff);  in batadv_orig_node_free_rcu()
862  * batadv_orig_node_release() - release orig_node from lists and queue for
877 	spin_lock_bh(&orig_node->neigh_list_lock);  in batadv_orig_node_release()
881 				  &orig_node->neigh_list, list) {  in batadv_orig_node_release()
882 		hlist_del_rcu(&neigh_node->list);  in batadv_orig_node_release()
887 				  &orig_node->ifinfo_list, list) {  in batadv_orig_node_release()
888 		hlist_del_rcu(&orig_ifinfo->list);  in batadv_orig_node_release()
892 	last_candidate = orig_node->last_bonding_candidate;  in batadv_orig_node_release()
893 	orig_node->last_bonding_candidate = NULL;  in batadv_orig_node_release()
894 	spin_unlock_bh(&orig_node->neigh_list_lock);  in batadv_orig_node_release()
898 	spin_lock_bh(&orig_node->vlan_list_lock);  in batadv_orig_node_release()
899 	hlist_for_each_entry_safe(vlan, node_tmp, &orig_node->vlan_list, list) {  in batadv_orig_node_release()
900 		hlist_del_rcu(&vlan->list);  in batadv_orig_node_release()
903 	spin_unlock_bh(&orig_node->vlan_list_lock);  in batadv_orig_node_release()
906 	batadv_nc_purge_orig(orig_node->bat_priv, orig_node, NULL);  in batadv_orig_node_release()
908 	call_rcu(&orig_node->rcu, batadv_orig_node_free_rcu);  in batadv_orig_node_release()
912  * batadv_originator_free() - Free all originator structures
913  * @bat_priv: the bat priv with all the soft interface information
917 	struct batadv_hashtable *hash = bat_priv->orig_hash;  in batadv_originator_free()
927 	cancel_delayed_work_sync(&bat_priv->orig_work);  in batadv_originator_free()
929 	bat_priv->orig_hash = NULL;  in batadv_originator_free()
931 	for (i = 0; i < hash->size; i++) {  in batadv_originator_free()
932 		head = &hash->table[i];  in batadv_originator_free()
933 		list_lock = &hash->list_locks[i];  in batadv_originator_free()
938 			hlist_del_rcu(&orig_node->hash_entry);  in batadv_originator_free()
948  * batadv_orig_node_new() - creates a new orig_node
949  * @bat_priv: the bat priv with all the soft interface information
972 	INIT_HLIST_HEAD(&orig_node->neigh_list);  in batadv_orig_node_new()
973 	INIT_HLIST_HEAD(&orig_node->vlan_list);  in batadv_orig_node_new()
974 	INIT_HLIST_HEAD(&orig_node->ifinfo_list);  in batadv_orig_node_new()
975 	spin_lock_init(&orig_node->bcast_seqno_lock);  in batadv_orig_node_new()
976 	spin_lock_init(&orig_node->neigh_list_lock);  in batadv_orig_node_new()
977 	spin_lock_init(&orig_node->tt_buff_lock);  in batadv_orig_node_new()
978 	spin_lock_init(&orig_node->tt_lock);  in batadv_orig_node_new()
979 	spin_lock_init(&orig_node->vlan_list_lock);  in batadv_orig_node_new()
984 	kref_init(&orig_node->refcount);  in batadv_orig_node_new()
986 	orig_node->bat_priv = bat_priv;  in batadv_orig_node_new()
987 	ether_addr_copy(orig_node->orig, addr);  in batadv_orig_node_new()
989 	atomic_set(&orig_node->last_ttvn, 0);  in batadv_orig_node_new()
990 	orig_node->tt_buff = NULL;  in batadv_orig_node_new()
991 	orig_node->tt_buff_len = 0;  in batadv_orig_node_new()
992 	orig_node->last_seen = jiffies;  in batadv_orig_node_new()
993 	reset_time = jiffies - 1 - msecs_to_jiffies(BATADV_RESET_PROTECTION_MS);  in batadv_orig_node_new()
994 	orig_node->bcast_seqno_reset = reset_time;  in batadv_orig_node_new()
997 	orig_node->mcast_flags = BATADV_MCAST_WANT_NO_RTR4;  in batadv_orig_node_new()
998 	orig_node->mcast_flags |= BATADV_MCAST_WANT_NO_RTR6;  in batadv_orig_node_new()
999 	orig_node->mcast_flags |= BATADV_MCAST_HAVE_MC_PTYPE_CAPA;  in batadv_orig_node_new()
1000 	INIT_HLIST_NODE(&orig_node->mcast_want_all_unsnoopables_node);  in batadv_orig_node_new()
1001 	INIT_HLIST_NODE(&orig_node->mcast_want_all_ipv4_node);  in batadv_orig_node_new()
1002 	INIT_HLIST_NODE(&orig_node->mcast_want_all_ipv6_node);  in batadv_orig_node_new()
1003 	spin_lock_init(&orig_node->mcast_handler_lock);  in batadv_orig_node_new()
1017 		INIT_HLIST_HEAD(&orig_node->fragments[i].fragment_list);  in batadv_orig_node_new()
1018 		spin_lock_init(&orig_node->fragments[i].lock);  in batadv_orig_node_new()
1019 		orig_node->fragments[i].size = 0;  in batadv_orig_node_new()
1029  * batadv_purge_neigh_ifinfo() - purge obsolete ifinfo entries from neighbor
1030  * @bat_priv: the bat priv with all the soft interface information
1031  * @neigh: orig node which is to be checked
1041 	spin_lock_bh(&neigh->ifinfo_lock);  in batadv_purge_neigh_ifinfo()
1045 				  &neigh->ifinfo_list, list) {  in batadv_purge_neigh_ifinfo()
1046 		if_outgoing = neigh_ifinfo->if_outgoing;  in batadv_purge_neigh_ifinfo()
1048 		/* always keep the default interface */  in batadv_purge_neigh_ifinfo()
1052 		/* don't purge if the interface is not (going) down */  in batadv_purge_neigh_ifinfo()
1053 		if (if_outgoing->if_status != BATADV_IF_INACTIVE &&  in batadv_purge_neigh_ifinfo()
1054 		    if_outgoing->if_status != BATADV_IF_NOT_IN_USE &&  in batadv_purge_neigh_ifinfo()
1055 		    if_outgoing->if_status != BATADV_IF_TO_BE_REMOVED)  in batadv_purge_neigh_ifinfo()
1060 			   neigh->addr, if_outgoing->net_dev->name);  in batadv_purge_neigh_ifinfo()
1062 		hlist_del_rcu(&neigh_ifinfo->list);  in batadv_purge_neigh_ifinfo()
1066 	spin_unlock_bh(&neigh->ifinfo_lock);  in batadv_purge_neigh_ifinfo()
1070  * batadv_purge_orig_ifinfo() - purge obsolete ifinfo entries from originator
1071  * @bat_priv: the bat priv with all the soft interface information
1072  * @orig_node: orig node which is to be checked
1085 	spin_lock_bh(&orig_node->neigh_list_lock);  in batadv_purge_orig_ifinfo()
1089 				  &orig_node->ifinfo_list, list) {  in batadv_purge_orig_ifinfo()
1090 		if_outgoing = orig_ifinfo->if_outgoing;  in batadv_purge_orig_ifinfo()
1092 		/* always keep the default interface */  in batadv_purge_orig_ifinfo()
1096 		/* don't purge if the interface is not (going) down */  in batadv_purge_orig_ifinfo()
1097 		if (if_outgoing->if_status != BATADV_IF_INACTIVE &&  in batadv_purge_orig_ifinfo()
1098 		    if_outgoing->if_status != BATADV_IF_NOT_IN_USE &&  in batadv_purge_orig_ifinfo()
1099 		    if_outgoing->if_status != BATADV_IF_TO_BE_REMOVED)  in batadv_purge_orig_ifinfo()
1104 			   orig_node->orig, if_outgoing->net_dev->name);  in batadv_purge_orig_ifinfo()
1108 		hlist_del_rcu(&orig_ifinfo->list);  in batadv_purge_orig_ifinfo()
1110 		if (orig_node->last_bonding_candidate == orig_ifinfo) {  in batadv_purge_orig_ifinfo()
1111 			orig_node->last_bonding_candidate = NULL;  in batadv_purge_orig_ifinfo()
1116 	spin_unlock_bh(&orig_node->neigh_list_lock);  in batadv_purge_orig_ifinfo()
1122  * batadv_purge_orig_neighbors() - purges neighbors from originator
1123  * @bat_priv: the bat priv with all the soft interface information
1124  * @orig_node: orig node which is to be checked
1138 	spin_lock_bh(&orig_node->neigh_list_lock);  in batadv_purge_orig_neighbors()
1142 				  &orig_node->neigh_list, list) {  in batadv_purge_orig_neighbors()
1143 		last_seen = neigh_node->last_seen;  in batadv_purge_orig_neighbors()
1144 		if_incoming = neigh_node->if_incoming;  in batadv_purge_orig_neighbors()
1147 		    if_incoming->if_status == BATADV_IF_INACTIVE ||  in batadv_purge_orig_neighbors()
1148 		    if_incoming->if_status == BATADV_IF_NOT_IN_USE ||  in batadv_purge_orig_neighbors()
1149 		    if_incoming->if_status == BATADV_IF_TO_BE_REMOVED) {  in batadv_purge_orig_neighbors()
1150 			if (if_incoming->if_status == BATADV_IF_INACTIVE ||  in batadv_purge_orig_neighbors()
1151 			    if_incoming->if_status == BATADV_IF_NOT_IN_USE ||  in batadv_purge_orig_neighbors()
1152 			    if_incoming->if_status == BATADV_IF_TO_BE_REMOVED)  in batadv_purge_orig_neighbors()
1155 					   orig_node->orig, neigh_node->addr,  in batadv_purge_orig_neighbors()
1156 					   if_incoming->net_dev->name);  in batadv_purge_orig_neighbors()
1160 					   orig_node->orig, neigh_node->addr,  in batadv_purge_orig_neighbors()
1165 			hlist_del_rcu(&neigh_node->list);  in batadv_purge_orig_neighbors()
1169 			 * deleted, but some interface has been removed.  in batadv_purge_orig_neighbors()
1175 	spin_unlock_bh(&orig_node->neigh_list_lock);  in batadv_purge_orig_neighbors()
1180  * batadv_find_best_neighbor() - finds the best neighbor after purging
1181  * @bat_priv: the bat priv with all the soft interface information
1182  * @orig_node: orig node which is to be checked
1183  * @if_outgoing: the interface for which the metric should be compared
1193 	struct batadv_algo_ops *bao = bat_priv->algo_ops;  in batadv_find_best_neighbor()
1196 	hlist_for_each_entry_rcu(neigh, &orig_node->neigh_list, list) {  in batadv_find_best_neighbor()
1197 		if (best && (bao->neigh.cmp(neigh, if_outgoing, best,  in batadv_find_best_neighbor()
1201 		if (!kref_get_unless_zero(&neigh->refcount))  in batadv_find_best_neighbor()
1214  * batadv_purge_orig_node() - purges obsolete information from an orig_node
1215  * @bat_priv: the bat priv with all the soft interface information
1216  * @orig_node: orig node which is to be checked
1230 	if (batadv_has_timed_out(orig_node->last_seen,  in batadv_purge_orig_node()
1234 			   orig_node->orig,  in batadv_purge_orig_node()
1235 			   jiffies_to_msecs(orig_node->last_seen));  in batadv_purge_orig_node()
1254 		if (hard_iface->if_status != BATADV_IF_ACTIVE)  in batadv_purge_orig_node()
1257 		if (hard_iface->soft_iface != bat_priv->soft_iface)  in batadv_purge_orig_node()
1260 		if (!kref_get_unless_zero(&hard_iface->refcount))  in batadv_purge_orig_node()
1278  * batadv_purge_orig_ref() - Purge all outdated originators
1279  * @bat_priv: the bat priv with all the soft interface information
1283 	struct batadv_hashtable *hash = bat_priv->orig_hash;  in batadv_purge_orig_ref()
1294 	for (i = 0; i < hash->size; i++) {  in batadv_purge_orig_ref()
1295 		head = &hash->table[i];  in batadv_purge_orig_ref()
1298 		list_lock = &hash->list_locks[i];  in batadv_purge_orig_ref()
1305 				hlist_del_rcu(&orig_node->hash_entry);  in batadv_purge_orig_ref()
1306 				batadv_tt_global_del_orig(orig_node->bat_priv,  in batadv_purge_orig_ref()
1307 							  orig_node, -1,  in batadv_purge_orig_ref()
1331 			   &bat_priv->orig_work,  in batadv_purge_orig()
1336  * batadv_orig_dump() - Dump to netlink the originator infos for a specific
1337  *  outgoing interface
1345 	struct net *net = sock_net(cb->skb->sk);  in batadv_orig_dump()
1354 	ifindex = batadv_netlink_get_ifindex(cb->nlh, BATADV_ATTR_MESH_IFINDEX);  in batadv_orig_dump()
1356 		return -EINVAL;  in batadv_orig_dump()
1360 		ret = -ENODEV;  in batadv_orig_dump()
1367 	if (!primary_if || primary_if->if_status != BATADV_IF_ACTIVE) {  in batadv_orig_dump()
1368 		ret = -ENOENT;  in batadv_orig_dump()
1372 	hard_ifindex = batadv_netlink_get_ifindex(cb->nlh,  in batadv_orig_dump()
1380 			ret = -ENODEV;  in batadv_orig_dump()
1384 		if (hardif->soft_iface != soft_iface) {  in batadv_orig_dump()
1385 			ret = -ENOENT;  in batadv_orig_dump()
1390 	if (!bat_priv->algo_ops->orig.dump) {  in batadv_orig_dump()
1391 		ret = -EOPNOTSUPP;  in batadv_orig_dump()
1395 	bat_priv->algo_ops->orig.dump(msg, cb, bat_priv, hardif);  in batadv_orig_dump()
1397 	ret = msg->len;  in batadv_orig_dump()