1 // SPDX-License-Identifier: GPL-2.0
33 #include "distributed-arp-table.h"
36 #include "hard-interface.h"
41 #include "network-coding.h"
43 #include "soft-interface.h"
44 #include "translation-table.h"
50  * batadv_orig_hash_find() - Find and return originator from orig_hash
51  * @bat_priv: the bat priv with all the soft interface information
59 	struct batadv_hashtable *hash = bat_priv->orig_hash;  in batadv_orig_hash_find()
67 	index = batadv_choose_orig(data, hash->size);  in batadv_orig_hash_find()
68 	head = &hash->table[index];  in batadv_orig_hash_find()
75 		if (!kref_get_unless_zero(&orig_node->refcount))  in batadv_orig_hash_find()
89  * batadv_compare_orig() - comparing function used in the originator hash table
90  * @node: node in the local table
91  * @data2: second object to compare the node to
95 bool batadv_compare_orig(const struct hlist_node *node, const void *data2)  in batadv_compare_orig()  argument
97 	const void *data1 = container_of(node, struct batadv_orig_node,  in batadv_compare_orig()
104  * batadv_orig_node_vlan_get() - get an orig_node_vlan object
118 	hlist_for_each_entry_rcu(tmp, &orig_node->vlan_list, list) {  in batadv_orig_node_vlan_get()
119 		if (tmp->vid != vid)  in batadv_orig_node_vlan_get()
122 		if (!kref_get_unless_zero(&tmp->refcount))  in batadv_orig_node_vlan_get()
135  * batadv_orig_node_vlan_new() - search and possibly create an orig_node_vlan
152 	spin_lock_bh(&orig_node->vlan_list_lock);  in batadv_orig_node_vlan_new()
163 	kref_init(&vlan->refcount);  in batadv_orig_node_vlan_new()
164 	vlan->vid = vid;  in batadv_orig_node_vlan_new()
166 	kref_get(&vlan->refcount);  in batadv_orig_node_vlan_new()
167 	hlist_add_head_rcu(&vlan->list, &orig_node->vlan_list);  in batadv_orig_node_vlan_new()
170 	spin_unlock_bh(&orig_node->vlan_list_lock);  in batadv_orig_node_vlan_new()
176  * batadv_orig_node_vlan_release() - release originator-vlan object from lists
178  * @ref: kref pointer of the originator-vlan object
190  * batadv_originator_init() - Initialize all originator structures
191  * @bat_priv: the bat priv with all the soft interface information
197 	if (bat_priv->orig_hash)  in batadv_originator_init()
200 	bat_priv->orig_hash = batadv_hash_new(1024);  in batadv_originator_init()
202 	if (!bat_priv->orig_hash)  in batadv_originator_init()
205 	batadv_hash_set_lock_class(bat_priv->orig_hash,  in batadv_originator_init()
208 	INIT_DELAYED_WORK(&bat_priv->orig_work, batadv_purge_orig);  in batadv_originator_init()
210 			   &bat_priv->orig_work,  in batadv_originator_init()
216 	return -ENOMEM;  in batadv_originator_init()
220  * batadv_neigh_ifinfo_release() - release neigh_ifinfo from lists and queue for
230 	if (neigh_ifinfo->if_outgoing != BATADV_IF_DEFAULT)  in batadv_neigh_ifinfo_release()
231 		batadv_hardif_put(neigh_ifinfo->if_outgoing);  in batadv_neigh_ifinfo_release()
237  * batadv_hardif_neigh_release() - release hardif neigh node from lists and
248 	spin_lock_bh(&hardif_neigh->if_incoming->neigh_list_lock);  in batadv_hardif_neigh_release()
249 	hlist_del_init_rcu(&hardif_neigh->list);  in batadv_hardif_neigh_release()
250 	spin_unlock_bh(&hardif_neigh->if_incoming->neigh_list_lock);  in batadv_hardif_neigh_release()
252 	batadv_hardif_put(hardif_neigh->if_incoming);  in batadv_hardif_neigh_release()
257  * batadv_neigh_node_release() - release neigh_node from lists and queue for
270 				  &neigh_node->ifinfo_list, list) {  in batadv_neigh_node_release()
274 	batadv_hardif_neigh_put(neigh_node->hardif_neigh);  in batadv_neigh_node_release()
276 	batadv_hardif_put(neigh_node->if_incoming);  in batadv_neigh_node_release()
282  * batadv_orig_router_get() - router to the originator depending on iface
283  * @orig_node: the orig node for the router
284  * @if_outgoing: the interface where the payload packet has been received or
299 	hlist_for_each_entry_rcu(orig_ifinfo, &orig_node->ifinfo_list, list) {  in batadv_orig_router_get()
300 		if (orig_ifinfo->if_outgoing != if_outgoing)  in batadv_orig_router_get()
303 		router = rcu_dereference(orig_ifinfo->router);  in batadv_orig_router_get()
307 	if (router && !kref_get_unless_zero(&router->refcount))  in batadv_orig_router_get()
315  * batadv_orig_ifinfo_get() - find the ifinfo from an orig_node
316  * @orig_node: the orig node to be queried
317  * @if_outgoing: the interface for which the ifinfo should be acquired
330 	hlist_for_each_entry_rcu(tmp, &orig_node->ifinfo_list,  in batadv_orig_ifinfo_get()
332 		if (tmp->if_outgoing != if_outgoing)  in batadv_orig_ifinfo_get()
335 		if (!kref_get_unless_zero(&tmp->refcount))  in batadv_orig_ifinfo_get()
347  * batadv_orig_ifinfo_new() - search and possibly create an orig_ifinfo object
348  * @orig_node: the orig node to be queried
349  * @if_outgoing: the interface for which the ifinfo should be acquired
352  * interface otherwise. The object is created and added to the list
364 	spin_lock_bh(&orig_node->neigh_list_lock);  in batadv_orig_ifinfo_new()
375 		kref_get(&if_outgoing->refcount);  in batadv_orig_ifinfo_new()
377 	reset_time = jiffies - 1;  in batadv_orig_ifinfo_new()
378 	reset_time -= msecs_to_jiffies(BATADV_RESET_PROTECTION_MS);  in batadv_orig_ifinfo_new()
379 	orig_ifinfo->batman_seqno_reset = reset_time;  in batadv_orig_ifinfo_new()
380 	orig_ifinfo->if_outgoing = if_outgoing;  in batadv_orig_ifinfo_new()
381 	INIT_HLIST_NODE(&orig_ifinfo->list);  in batadv_orig_ifinfo_new()
382 	kref_init(&orig_ifinfo->refcount);  in batadv_orig_ifinfo_new()
384 	kref_get(&orig_ifinfo->refcount);  in batadv_orig_ifinfo_new()
385 	hlist_add_head_rcu(&orig_ifinfo->list,  in batadv_orig_ifinfo_new()
386 			   &orig_node->ifinfo_list);  in batadv_orig_ifinfo_new()
388 	spin_unlock_bh(&orig_node->neigh_list_lock);  in batadv_orig_ifinfo_new()
393  * batadv_neigh_ifinfo_get() - find the ifinfo from an neigh_node
394  * @neigh: the neigh node to be queried
395  * @if_outgoing: the interface for which the ifinfo should be acquired
409 	hlist_for_each_entry_rcu(tmp_neigh_ifinfo, &neigh->ifinfo_list,  in batadv_neigh_ifinfo_get()
411 		if (tmp_neigh_ifinfo->if_outgoing != if_outgoing)  in batadv_neigh_ifinfo_get()
414 		if (!kref_get_unless_zero(&tmp_neigh_ifinfo->refcount))  in batadv_neigh_ifinfo_get()
426  * batadv_neigh_ifinfo_new() - search and possibly create an neigh_ifinfo object
427  * @neigh: the neigh node to be queried
428  * @if_outgoing: the interface for which the ifinfo should be acquired
431  * if_outgoing interface otherwise. The object is created and added to the list
442 	spin_lock_bh(&neigh->ifinfo_lock);  in batadv_neigh_ifinfo_new()
453 		kref_get(&if_outgoing->refcount);  in batadv_neigh_ifinfo_new()
455 	INIT_HLIST_NODE(&neigh_ifinfo->list);  in batadv_neigh_ifinfo_new()
456 	kref_init(&neigh_ifinfo->refcount);  in batadv_neigh_ifinfo_new()
457 	neigh_ifinfo->if_outgoing = if_outgoing;  in batadv_neigh_ifinfo_new()
459 	kref_get(&neigh_ifinfo->refcount);  in batadv_neigh_ifinfo_new()
460 	hlist_add_head_rcu(&neigh_ifinfo->list, &neigh->ifinfo_list);  in batadv_neigh_ifinfo_new()
463 	spin_unlock_bh(&neigh->ifinfo_lock);  in batadv_neigh_ifinfo_new()
469  * batadv_neigh_node_get() - retrieve a neighbour from the list
471  * @hard_iface: the interface where this neighbour is connected to
475  * which is connected through the provided hard interface.
487 	hlist_for_each_entry_rcu(tmp_neigh_node, &orig_node->neigh_list, list) {  in batadv_neigh_node_get()
488 		if (!batadv_compare_eth(tmp_neigh_node->addr, addr))  in batadv_neigh_node_get()
491 		if (tmp_neigh_node->if_incoming != hard_iface)  in batadv_neigh_node_get()
494 		if (!kref_get_unless_zero(&tmp_neigh_node->refcount))  in batadv_neigh_node_get()
506  * batadv_hardif_neigh_create() - create a hardif neighbour node
507  * @hard_iface: the interface this neighbour is connected to
508  * @neigh_addr: the interface address of the neighbour to retrieve
511  * Return: the hardif neighbour node if found or created or NULL otherwise.
518 	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hardif_neigh_create()
521 	spin_lock_bh(&hard_iface->neigh_list_lock);  in batadv_hardif_neigh_create()
532 	kref_get(&hard_iface->refcount);  in batadv_hardif_neigh_create()
533 	INIT_HLIST_NODE(&hardif_neigh->list);  in batadv_hardif_neigh_create()
534 	ether_addr_copy(hardif_neigh->addr, neigh_addr);  in batadv_hardif_neigh_create()
535 	ether_addr_copy(hardif_neigh->orig, orig_node->orig);  in batadv_hardif_neigh_create()
536 	hardif_neigh->if_incoming = hard_iface;  in batadv_hardif_neigh_create()
537 	hardif_neigh->last_seen = jiffies;  in batadv_hardif_neigh_create()
539 	kref_init(&hardif_neigh->refcount);  in batadv_hardif_neigh_create()
541 	if (bat_priv->algo_ops->neigh.hardif_init)  in batadv_hardif_neigh_create()
542 		bat_priv->algo_ops->neigh.hardif_init(hardif_neigh);  in batadv_hardif_neigh_create()
544 	hlist_add_head_rcu(&hardif_neigh->list, &hard_iface->neigh_list);  in batadv_hardif_neigh_create()
547 	spin_unlock_bh(&hard_iface->neigh_list_lock);  in batadv_hardif_neigh_create()
552  * batadv_hardif_neigh_get_or_create() - retrieve or create a hardif neighbour
553  *  node
554  * @hard_iface: the interface this neighbour is connected to
555  * @neigh_addr: the interface address of the neighbour to retrieve
558  * Return: the hardif neighbour node if found or created or NULL otherwise.
576  * batadv_hardif_neigh_get() - retrieve a hardif neighbour from the list
577  * @hard_iface: the interface where this neighbour is connected to
580  * Looks for and possibly returns a neighbour belonging to this hard interface.
592 				 &hard_iface->neigh_list, list) {  in batadv_hardif_neigh_get()
593 		if (!batadv_compare_eth(tmp_hardif_neigh->addr, neigh_addr))  in batadv_hardif_neigh_get()
596 		if (!kref_get_unless_zero(&tmp_hardif_neigh->refcount))  in batadv_hardif_neigh_get()
608  * batadv_neigh_node_create() - create a neigh node object
610  * @hard_iface: the interface where the neighbour is connected to
611  * @neigh_addr: the mac address of the neighbour interface
615  * Return: the neighbour node if found or created or NULL otherwise.
625 	spin_lock_bh(&orig_node->neigh_list_lock);  in batadv_neigh_node_create()
640 	INIT_HLIST_NODE(&neigh_node->list);  in batadv_neigh_node_create()
641 	INIT_HLIST_HEAD(&neigh_node->ifinfo_list);  in batadv_neigh_node_create()
642 	spin_lock_init(&neigh_node->ifinfo_lock);  in batadv_neigh_node_create()
644 	kref_get(&hard_iface->refcount);  in batadv_neigh_node_create()
645 	ether_addr_copy(neigh_node->addr, neigh_addr);  in batadv_neigh_node_create()
646 	neigh_node->if_incoming = hard_iface;  in batadv_neigh_node_create()
647 	neigh_node->orig_node = orig_node;  in batadv_neigh_node_create()
648 	neigh_node->last_seen = jiffies;  in batadv_neigh_node_create()
651 	kref_get(&hardif_neigh->refcount);  in batadv_neigh_node_create()
652 	neigh_node->hardif_neigh = hardif_neigh;  in batadv_neigh_node_create()
655 	kref_init(&neigh_node->refcount);  in batadv_neigh_node_create()
657 	kref_get(&neigh_node->refcount);  in batadv_neigh_node_create()
658 	hlist_add_head_rcu(&neigh_node->list, &orig_node->neigh_list);  in batadv_neigh_node_create()
660 	batadv_dbg(BATADV_DBG_BATMAN, orig_node->bat_priv,  in batadv_neigh_node_create()
661 		   "Creating new neighbor %pM for orig_node %pM on interface %s\n",  in batadv_neigh_node_create()
662 		   neigh_addr, orig_node->orig, hard_iface->net_dev->name);  in batadv_neigh_node_create()
665 	spin_unlock_bh(&orig_node->neigh_list_lock);  in batadv_neigh_node_create()
672  * batadv_neigh_node_get_or_create() - retrieve or create a neigh node object
674  * @hard_iface: the interface where the neighbour is connected to
675  * @neigh_addr: the mac address of the neighbour interface
677  * Return: the neighbour node if found or created or NULL otherwise.
695  * batadv_hardif_neigh_dump() - Dump to netlink the neighbor infos for a
696  *  specific outgoing interface
704 	struct net *net = sock_net(cb->skb->sk);  in batadv_hardif_neigh_dump()
713 	ifindex = batadv_netlink_get_ifindex(cb->nlh, BATADV_ATTR_MESH_IFINDEX);  in batadv_hardif_neigh_dump()
715 		return -EINVAL;  in batadv_hardif_neigh_dump()
719 		ret = -ENODEV;  in batadv_hardif_neigh_dump()
726 	if (!primary_if || primary_if->if_status != BATADV_IF_ACTIVE) {  in batadv_hardif_neigh_dump()
727 		ret = -ENOENT;  in batadv_hardif_neigh_dump()
731 	hard_ifindex = batadv_netlink_get_ifindex(cb->nlh,  in batadv_hardif_neigh_dump()
739 			ret = -ENODEV;  in batadv_hardif_neigh_dump()
743 		if (hardif->soft_iface != soft_iface) {  in batadv_hardif_neigh_dump()
744 			ret = -ENOENT;  in batadv_hardif_neigh_dump()
749 	if (!bat_priv->algo_ops->neigh.dump) {  in batadv_hardif_neigh_dump()
750 		ret = -EOPNOTSUPP;  in batadv_hardif_neigh_dump()
754 	bat_priv->algo_ops->neigh.dump(msg, cb, bat_priv, hardif);  in batadv_hardif_neigh_dump()
756 	ret = msg->len;  in batadv_hardif_neigh_dump()
768  * batadv_orig_ifinfo_release() - release orig_ifinfo from lists and queue for
779 	if (orig_ifinfo->if_outgoing != BATADV_IF_DEFAULT)  in batadv_orig_ifinfo_release()
780 		batadv_hardif_put(orig_ifinfo->if_outgoing);  in batadv_orig_ifinfo_release()
783 	router = rcu_dereference_protected(orig_ifinfo->router, true);  in batadv_orig_ifinfo_release()
790  * batadv_orig_node_free_rcu() - free the orig_node
803 	kfree(orig_node->tt_buff);  in batadv_orig_node_free_rcu()
808  * batadv_orig_node_release() - release orig_node from lists and queue for
823 	spin_lock_bh(&orig_node->neigh_list_lock);  in batadv_orig_node_release()
827 				  &orig_node->neigh_list, list) {  in batadv_orig_node_release()
828 		hlist_del_rcu(&neigh_node->list);  in batadv_orig_node_release()
833 				  &orig_node->ifinfo_list, list) {  in batadv_orig_node_release()
834 		hlist_del_rcu(&orig_ifinfo->list);  in batadv_orig_node_release()
838 	last_candidate = orig_node->last_bonding_candidate;  in batadv_orig_node_release()
839 	orig_node->last_bonding_candidate = NULL;  in batadv_orig_node_release()
840 	spin_unlock_bh(&orig_node->neigh_list_lock);  in batadv_orig_node_release()
844 	spin_lock_bh(&orig_node->vlan_list_lock);  in batadv_orig_node_release()
845 	hlist_for_each_entry_safe(vlan, node_tmp, &orig_node->vlan_list, list) {  in batadv_orig_node_release()
846 		hlist_del_rcu(&vlan->list);  in batadv_orig_node_release()
849 	spin_unlock_bh(&orig_node->vlan_list_lock);  in batadv_orig_node_release()
852 	batadv_nc_purge_orig(orig_node->bat_priv, orig_node, NULL);  in batadv_orig_node_release()
854 	call_rcu(&orig_node->rcu, batadv_orig_node_free_rcu);  in batadv_orig_node_release()
858  * batadv_originator_free() - Free all originator structures
859  * @bat_priv: the bat priv with all the soft interface information
863 	struct batadv_hashtable *hash = bat_priv->orig_hash;  in batadv_originator_free()
873 	cancel_delayed_work_sync(&bat_priv->orig_work);  in batadv_originator_free()
875 	bat_priv->orig_hash = NULL;  in batadv_originator_free()
877 	for (i = 0; i < hash->size; i++) {  in batadv_originator_free()
878 		head = &hash->table[i];  in batadv_originator_free()
879 		list_lock = &hash->list_locks[i];  in batadv_originator_free()
884 			hlist_del_rcu(&orig_node->hash_entry);  in batadv_originator_free()
894  * batadv_orig_node_new() - creates a new orig_node
895  * @bat_priv: the bat priv with all the soft interface information
918 	INIT_HLIST_HEAD(&orig_node->neigh_list);  in batadv_orig_node_new()
919 	INIT_HLIST_HEAD(&orig_node->vlan_list);  in batadv_orig_node_new()
920 	INIT_HLIST_HEAD(&orig_node->ifinfo_list);  in batadv_orig_node_new()
921 	spin_lock_init(&orig_node->bcast_seqno_lock);  in batadv_orig_node_new()
922 	spin_lock_init(&orig_node->neigh_list_lock);  in batadv_orig_node_new()
923 	spin_lock_init(&orig_node->tt_buff_lock);  in batadv_orig_node_new()
924 	spin_lock_init(&orig_node->tt_lock);  in batadv_orig_node_new()
925 	spin_lock_init(&orig_node->vlan_list_lock);  in batadv_orig_node_new()
930 	kref_init(&orig_node->refcount);  in batadv_orig_node_new()
932 	orig_node->bat_priv = bat_priv;  in batadv_orig_node_new()
933 	ether_addr_copy(orig_node->orig, addr);  in batadv_orig_node_new()
935 	atomic_set(&orig_node->last_ttvn, 0);  in batadv_orig_node_new()
936 	orig_node->tt_buff = NULL;  in batadv_orig_node_new()
937 	orig_node->tt_buff_len = 0;  in batadv_orig_node_new()
938 	orig_node->last_seen = jiffies;  in batadv_orig_node_new()
939 	reset_time = jiffies - 1 - msecs_to_jiffies(BATADV_RESET_PROTECTION_MS);  in batadv_orig_node_new()
940 	orig_node->bcast_seqno_reset = reset_time;  in batadv_orig_node_new()
943 	orig_node->mcast_flags = BATADV_MCAST_WANT_NO_RTR4;  in batadv_orig_node_new()
944 	orig_node->mcast_flags |= BATADV_MCAST_WANT_NO_RTR6;  in batadv_orig_node_new()
945 	INIT_HLIST_NODE(&orig_node->mcast_want_all_unsnoopables_node);  in batadv_orig_node_new()
946 	INIT_HLIST_NODE(&orig_node->mcast_want_all_ipv4_node);  in batadv_orig_node_new()
947 	INIT_HLIST_NODE(&orig_node->mcast_want_all_ipv6_node);  in batadv_orig_node_new()
948 	spin_lock_init(&orig_node->mcast_handler_lock);  in batadv_orig_node_new()
962 		INIT_HLIST_HEAD(&orig_node->fragments[i].fragment_list);  in batadv_orig_node_new()
963 		spin_lock_init(&orig_node->fragments[i].lock);  in batadv_orig_node_new()
964 		orig_node->fragments[i].size = 0;  in batadv_orig_node_new()
974  * batadv_purge_neigh_ifinfo() - purge obsolete ifinfo entries from neighbor
975  * @bat_priv: the bat priv with all the soft interface information
976  * @neigh: orig node which is to be checked
986 	spin_lock_bh(&neigh->ifinfo_lock);  in batadv_purge_neigh_ifinfo()
990 				  &neigh->ifinfo_list, list) {  in batadv_purge_neigh_ifinfo()
991 		if_outgoing = neigh_ifinfo->if_outgoing;  in batadv_purge_neigh_ifinfo()
993 		/* always keep the default interface */  in batadv_purge_neigh_ifinfo()
997 		/* don't purge if the interface is not (going) down */  in batadv_purge_neigh_ifinfo()
998 		if (if_outgoing->if_status != BATADV_IF_INACTIVE &&  in batadv_purge_neigh_ifinfo()
999 		    if_outgoing->if_status != BATADV_IF_NOT_IN_USE &&  in batadv_purge_neigh_ifinfo()
1000 		    if_outgoing->if_status != BATADV_IF_TO_BE_REMOVED)  in batadv_purge_neigh_ifinfo()
1005 			   neigh->addr, if_outgoing->net_dev->name);  in batadv_purge_neigh_ifinfo()
1007 		hlist_del_rcu(&neigh_ifinfo->list);  in batadv_purge_neigh_ifinfo()
1011 	spin_unlock_bh(&neigh->ifinfo_lock);  in batadv_purge_neigh_ifinfo()
1015  * batadv_purge_orig_ifinfo() - purge obsolete ifinfo entries from originator
1016  * @bat_priv: the bat priv with all the soft interface information
1017  * @orig_node: orig node which is to be checked
1030 	spin_lock_bh(&orig_node->neigh_list_lock);  in batadv_purge_orig_ifinfo()
1034 				  &orig_node->ifinfo_list, list) {  in batadv_purge_orig_ifinfo()
1035 		if_outgoing = orig_ifinfo->if_outgoing;  in batadv_purge_orig_ifinfo()
1037 		/* always keep the default interface */  in batadv_purge_orig_ifinfo()
1041 		/* don't purge if the interface is not (going) down */  in batadv_purge_orig_ifinfo()
1042 		if (if_outgoing->if_status != BATADV_IF_INACTIVE &&  in batadv_purge_orig_ifinfo()
1043 		    if_outgoing->if_status != BATADV_IF_NOT_IN_USE &&  in batadv_purge_orig_ifinfo()
1044 		    if_outgoing->if_status != BATADV_IF_TO_BE_REMOVED)  in batadv_purge_orig_ifinfo()
1049 			   orig_node->orig, if_outgoing->net_dev->name);  in batadv_purge_orig_ifinfo()
1053 		hlist_del_rcu(&orig_ifinfo->list);  in batadv_purge_orig_ifinfo()
1055 		if (orig_node->last_bonding_candidate == orig_ifinfo) {  in batadv_purge_orig_ifinfo()
1056 			orig_node->last_bonding_candidate = NULL;  in batadv_purge_orig_ifinfo()
1061 	spin_unlock_bh(&orig_node->neigh_list_lock);  in batadv_purge_orig_ifinfo()
1067  * batadv_purge_orig_neighbors() - purges neighbors from originator
1068  * @bat_priv: the bat priv with all the soft interface information
1069  * @orig_node: orig node which is to be checked
1083 	spin_lock_bh(&orig_node->neigh_list_lock);  in batadv_purge_orig_neighbors()
1087 				  &orig_node->neigh_list, list) {  in batadv_purge_orig_neighbors()
1088 		last_seen = neigh_node->last_seen;  in batadv_purge_orig_neighbors()
1089 		if_incoming = neigh_node->if_incoming;  in batadv_purge_orig_neighbors()
1092 		    if_incoming->if_status == BATADV_IF_INACTIVE ||  in batadv_purge_orig_neighbors()
1093 		    if_incoming->if_status == BATADV_IF_NOT_IN_USE ||  in batadv_purge_orig_neighbors()
1094 		    if_incoming->if_status == BATADV_IF_TO_BE_REMOVED) {  in batadv_purge_orig_neighbors()
1095 			if (if_incoming->if_status == BATADV_IF_INACTIVE ||  in batadv_purge_orig_neighbors()
1096 			    if_incoming->if_status == BATADV_IF_NOT_IN_USE ||  in batadv_purge_orig_neighbors()
1097 			    if_incoming->if_status == BATADV_IF_TO_BE_REMOVED)  in batadv_purge_orig_neighbors()
1100 					   orig_node->orig, neigh_node->addr,  in batadv_purge_orig_neighbors()
1101 					   if_incoming->net_dev->name);  in batadv_purge_orig_neighbors()
1105 					   orig_node->orig, neigh_node->addr,  in batadv_purge_orig_neighbors()
1110 			hlist_del_rcu(&neigh_node->list);  in batadv_purge_orig_neighbors()
1114 			 * deleted, but some interface has been removed.  in batadv_purge_orig_neighbors()
1120 	spin_unlock_bh(&orig_node->neigh_list_lock);  in batadv_purge_orig_neighbors()
1125  * batadv_find_best_neighbor() - finds the best neighbor after purging
1126  * @bat_priv: the bat priv with all the soft interface information
1127  * @orig_node: orig node which is to be checked
1128  * @if_outgoing: the interface for which the metric should be compared
1138 	struct batadv_algo_ops *bao = bat_priv->algo_ops;  in batadv_find_best_neighbor()
1141 	hlist_for_each_entry_rcu(neigh, &orig_node->neigh_list, list) {  in batadv_find_best_neighbor()
1142 		if (best && (bao->neigh.cmp(neigh, if_outgoing, best,  in batadv_find_best_neighbor()
1146 		if (!kref_get_unless_zero(&neigh->refcount))  in batadv_find_best_neighbor()
1159  * batadv_purge_orig_node() - purges obsolete information from an orig_node
1160  * @bat_priv: the bat priv with all the soft interface information
1161  * @orig_node: orig node which is to be checked
1175 	if (batadv_has_timed_out(orig_node->last_seen,  in batadv_purge_orig_node()
1179 			   orig_node->orig,  in batadv_purge_orig_node()
1180 			   jiffies_to_msecs(orig_node->last_seen));  in batadv_purge_orig_node()
1199 		if (hard_iface->if_status != BATADV_IF_ACTIVE)  in batadv_purge_orig_node()
1202 		if (hard_iface->soft_iface != bat_priv->soft_iface)  in batadv_purge_orig_node()
1205 		if (!kref_get_unless_zero(&hard_iface->refcount))  in batadv_purge_orig_node()
1223  * batadv_purge_orig_ref() - Purge all outdated originators
1224  * @bat_priv: the bat priv with all the soft interface information
1228 	struct batadv_hashtable *hash = bat_priv->orig_hash;  in batadv_purge_orig_ref()
1239 	for (i = 0; i < hash->size; i++) {  in batadv_purge_orig_ref()
1240 		head = &hash->table[i];  in batadv_purge_orig_ref()
1241 		list_lock = &hash->list_locks[i];  in batadv_purge_orig_ref()
1248 				hlist_del_rcu(&orig_node->hash_entry);  in batadv_purge_orig_ref()
1249 				batadv_tt_global_del_orig(orig_node->bat_priv,  in batadv_purge_orig_ref()
1250 							  orig_node, -1,  in batadv_purge_orig_ref()
1274 			   &bat_priv->orig_work,  in batadv_purge_orig()
1279  * batadv_orig_dump() - Dump to netlink the originator infos for a specific
1280  *  outgoing interface
1288 	struct net *net = sock_net(cb->skb->sk);  in batadv_orig_dump()
1297 	ifindex = batadv_netlink_get_ifindex(cb->nlh, BATADV_ATTR_MESH_IFINDEX);  in batadv_orig_dump()
1299 		return -EINVAL;  in batadv_orig_dump()
1303 		ret = -ENODEV;  in batadv_orig_dump()
1310 	if (!primary_if || primary_if->if_status != BATADV_IF_ACTIVE) {  in batadv_orig_dump()
1311 		ret = -ENOENT;  in batadv_orig_dump()
1315 	hard_ifindex = batadv_netlink_get_ifindex(cb->nlh,  in batadv_orig_dump()
1323 			ret = -ENODEV;  in batadv_orig_dump()
1327 		if (hardif->soft_iface != soft_iface) {  in batadv_orig_dump()
1328 			ret = -ENOENT;  in batadv_orig_dump()
1333 	if (!bat_priv->algo_ops->orig.dump) {  in batadv_orig_dump()
1334 		ret = -EOPNOTSUPP;  in batadv_orig_dump()
1338 	bat_priv->algo_ops->orig.dump(msg, cb, bat_priv, hardif);  in batadv_orig_dump()
1340 	ret = msg->len;  in batadv_orig_dump()