56 batadv_bla_send_announce(struct batadv_priv *bat_priv,
211 batadv_claim_hash_find(struct batadv_priv *bat_priv,  in batadv_claim_hash_find()  argument
214 	struct batadv_hashtable *hash = bat_priv->bla.claim_hash;  in batadv_claim_hash_find()
251 batadv_backbone_hash_find(struct batadv_priv *bat_priv, u8 *addr,  in batadv_backbone_hash_find()  argument
254 	struct batadv_hashtable *hash = bat_priv->bla.backbone_hash;  in batadv_backbone_hash_find()
300 	hash = backbone_gw->bat_priv->bla.claim_hash;  in batadv_bla_del_backbone_claims()
333 static void batadv_bla_send_claim(struct batadv_priv *bat_priv, u8 *mac,  in batadv_bla_send_claim()  argument
344 	primary_if = batadv_primary_if_get_selected(bat_priv);  in batadv_bla_send_claim()
348 	memcpy(&local_claim_dest, &bat_priv->bla.claim_dest,  in batadv_bla_send_claim()
383 		batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_send_claim()
392 		batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_send_claim()
401 		batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_send_claim()
412 		batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_send_claim()
419 		batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_send_claim()
436 	batadv_inc_counter(bat_priv, BATADV_CNT_RX);  in batadv_bla_send_claim()
437 	batadv_add_counter(bat_priv, BATADV_CNT_RX_BYTES,  in batadv_bla_send_claim()
456 	struct batadv_priv *bat_priv;  in batadv_bla_loopdetect_report()  local
461 	bat_priv = backbone_gw->bat_priv;  in batadv_bla_loopdetect_report()
463 	batadv_info(bat_priv->soft_iface,  in batadv_bla_loopdetect_report()
470 	batadv_throw_uevent(bat_priv, BATADV_UEV_BLA, BATADV_UEV_LOOPDETECT,  in batadv_bla_loopdetect_report()
486 batadv_bla_get_backbone_gw(struct batadv_priv *bat_priv, u8 *orig,  in batadv_bla_get_backbone_gw()  argument
493 	entry = batadv_backbone_hash_find(bat_priv, orig, vid);  in batadv_bla_get_backbone_gw()
498 	batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_get_backbone_gw()
509 	entry->bat_priv = bat_priv;  in batadv_bla_get_backbone_gw()
518 	hash_added = batadv_hash_add(bat_priv->bla.backbone_hash,  in batadv_bla_get_backbone_gw()
530 	orig_node = batadv_orig_hash_find(bat_priv, orig);  in batadv_bla_get_backbone_gw()
532 		batadv_tt_global_del_orig(bat_priv, orig_node, vid,  in batadv_bla_get_backbone_gw()
538 		batadv_bla_send_announce(bat_priv, entry);  in batadv_bla_get_backbone_gw()
543 		atomic_inc(&bat_priv->bla.num_requests);  in batadv_bla_get_backbone_gw()
559 batadv_bla_update_own_backbone_gw(struct batadv_priv *bat_priv,  in batadv_bla_update_own_backbone_gw()  argument
565 	backbone_gw = batadv_bla_get_backbone_gw(bat_priv,  in batadv_bla_update_own_backbone_gw()
584 static void batadv_bla_answer_request(struct batadv_priv *bat_priv,  in batadv_bla_answer_request()  argument
594 	batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_answer_request()
598 	backbone_gw = batadv_backbone_hash_find(bat_priv,  in batadv_bla_answer_request()
604 	hash = bat_priv->bla.claim_hash;  in batadv_bla_answer_request()
614 			batadv_bla_send_claim(bat_priv, claim->addr, claim->vid,  in batadv_bla_answer_request()
621 	batadv_bla_send_announce(bat_priv, backbone_gw);  in batadv_bla_answer_request()
638 	batadv_dbg(BATADV_DBG_BLA, backbone_gw->bat_priv,  in batadv_bla_send_request()
642 	batadv_bla_send_claim(backbone_gw->bat_priv, backbone_gw->orig,  in batadv_bla_send_request()
647 		atomic_inc(&backbone_gw->bat_priv->bla.num_requests);  in batadv_bla_send_request()
657 static void batadv_bla_send_announce(struct batadv_priv *bat_priv,  in batadv_bla_send_announce()  argument
669 	batadv_bla_send_claim(bat_priv, mac, backbone_gw->vid,  in batadv_bla_send_announce()
680 static void batadv_bla_add_claim(struct batadv_priv *bat_priv,  in batadv_bla_add_claim()  argument
692 	claim = batadv_claim_hash_find(bat_priv, &search_claim);  in batadv_bla_add_claim()
708 		batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_add_claim()
713 		hash_added = batadv_hash_add(bat_priv->bla.claim_hash,  in batadv_bla_add_claim()
729 		batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_add_claim()
789 static void batadv_bla_del_claim(struct batadv_priv *bat_priv,  in batadv_bla_del_claim()  argument
798 	claim = batadv_claim_hash_find(bat_priv, &search_claim);  in batadv_bla_del_claim()
802 	batadv_dbg(BATADV_DBG_BLA, bat_priv, "%s(): %pM, vid %d\n", __func__,  in batadv_bla_del_claim()
805 	claim_removed_node = batadv_hash_remove(bat_priv->bla.claim_hash,  in batadv_bla_del_claim()
830 static bool batadv_handle_announce(struct batadv_priv *bat_priv, u8 *an_addr,  in batadv_handle_announce()  argument
839 	backbone_gw = batadv_bla_get_backbone_gw(bat_priv, backbone_addr, vid,  in batadv_handle_announce()
849 	batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_handle_announce()
858 		batadv_dbg(BATADV_DBG_BLA, backbone_gw->bat_priv,  in batadv_handle_announce()
870 			atomic_dec(&backbone_gw->bat_priv->bla.num_requests);  in batadv_handle_announce()
889 static bool batadv_handle_request(struct batadv_priv *bat_priv,  in batadv_handle_request()  argument
904 	batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_handle_request()
908 	batadv_bla_answer_request(bat_priv, primary_if, vid);  in batadv_handle_request()
922 static bool batadv_handle_unclaim(struct batadv_priv *bat_priv,  in batadv_handle_unclaim()  argument
932 		batadv_bla_send_claim(bat_priv, claim_addr, vid,  in batadv_handle_unclaim()
935 	backbone_gw = batadv_backbone_hash_find(bat_priv, backbone_addr, vid);  in batadv_handle_unclaim()
941 	batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_handle_unclaim()
945 	batadv_bla_del_claim(bat_priv, claim_addr, vid);  in batadv_handle_unclaim()
960 static bool batadv_handle_claim(struct batadv_priv *bat_priv,  in batadv_handle_claim()  argument
969 	backbone_gw = batadv_bla_get_backbone_gw(bat_priv, backbone_addr, vid,  in batadv_handle_claim()
976 	batadv_bla_add_claim(bat_priv, claim_addr, vid, backbone_gw);  in batadv_handle_claim()
978 		batadv_bla_send_claim(bat_priv, claim_addr, vid,  in batadv_handle_claim()
1004 static int batadv_check_claim_group(struct batadv_priv *bat_priv,  in batadv_check_claim_group()  argument
1014 	bla_dst_own = &bat_priv->bla.claim_dest;  in batadv_check_claim_group()
1041 	orig_node = batadv_orig_hash_find(bat_priv, backbone_addr);  in batadv_check_claim_group()
1051 		batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_check_claim_group()
1071 static bool batadv_bla_process_claim(struct batadv_priv *bat_priv,  in batadv_bla_process_claim()  argument
1139 	bla_dst_own = &bat_priv->bla.claim_dest;  in batadv_bla_process_claim()
1158 	ret = batadv_check_claim_group(bat_priv, primary_if, hw_src, hw_dst,  in batadv_bla_process_claim()
1161 		batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_process_claim()
1170 	batadv_bla_update_own_backbone_gw(bat_priv, primary_if, vid);  in batadv_bla_process_claim()
1175 		if (batadv_handle_claim(bat_priv, primary_if, hw_src,  in batadv_bla_process_claim()
1180 		if (batadv_handle_unclaim(bat_priv, primary_if,  in batadv_bla_process_claim()
1186 		if (batadv_handle_announce(bat_priv, hw_src, ethhdr->h_source,  in batadv_bla_process_claim()
1191 		if (batadv_handle_request(bat_priv, primary_if, hw_src, ethhdr,  in batadv_bla_process_claim()
1197 	batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_process_claim()
1213 static void batadv_bla_purge_backbone_gw(struct batadv_priv *bat_priv, int now)  in batadv_bla_purge_backbone_gw()  argument
1222 	hash = bat_priv->bla.backbone_hash;  in batadv_bla_purge_backbone_gw()
1239 			batadv_dbg(BATADV_DBG_BLA, backbone_gw->bat_priv,  in batadv_bla_purge_backbone_gw()
1246 				atomic_dec(&bat_priv->bla.num_requests);  in batadv_bla_purge_backbone_gw()
1266 static void batadv_bla_purge_claims(struct batadv_priv *bat_priv,  in batadv_bla_purge_claims()  argument
1276 	hash = bat_priv->bla.claim_hash;  in batadv_bla_purge_claims()
1297 			batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_purge_claims()
1301 			batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_purge_claims()
1305 			batadv_handle_unclaim(bat_priv, primary_if,  in batadv_bla_purge_claims()
1322 void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,  in batadv_bla_update_orig_address()  argument
1334 	bat_priv->bla.claim_dest.group = group;  in batadv_bla_update_orig_address()
1337 	if (!atomic_read(&bat_priv->bridge_loop_avoidance))  in batadv_bla_update_orig_address()
1341 		batadv_bla_purge_claims(bat_priv, NULL, 1);  in batadv_bla_update_orig_address()
1342 		batadv_bla_purge_backbone_gw(bat_priv, 1);  in batadv_bla_update_orig_address()
1346 	hash = bat_priv->bla.backbone_hash;  in batadv_bla_update_orig_address()
1365 			batadv_bla_send_announce(bat_priv, backbone_gw);  in batadv_bla_update_orig_address()
1382 batadv_bla_send_loopdetect(struct batadv_priv *bat_priv,  in batadv_bla_send_loopdetect()  argument
1385 	batadv_dbg(BATADV_DBG_BLA, bat_priv, "Send loopdetect frame for vid %d\n",  in batadv_bla_send_loopdetect()
1387 	batadv_bla_send_claim(bat_priv, bat_priv->bla.loopdetect_addr,  in batadv_bla_send_loopdetect()
1397 	struct batadv_priv *bat_priv = netdev_priv(net_dev);  in batadv_bla_status_update()  local
1400 	primary_if = batadv_primary_if_get_selected(bat_priv);  in batadv_bla_status_update()
1407 	batadv_bla_update_orig_address(bat_priv, primary_if, primary_if);  in batadv_bla_status_update()
1422 	struct batadv_priv *bat_priv;  in batadv_bla_periodic_work()  local
1433 	bat_priv = container_of(priv_bla, struct batadv_priv, bla);  in batadv_bla_periodic_work()
1434 	primary_if = batadv_primary_if_get_selected(bat_priv);  in batadv_bla_periodic_work()
1438 	batadv_bla_purge_claims(bat_priv, primary_if, 0);  in batadv_bla_periodic_work()
1439 	batadv_bla_purge_backbone_gw(bat_priv, 0);  in batadv_bla_periodic_work()
1441 	if (!atomic_read(&bat_priv->bridge_loop_avoidance))  in batadv_bla_periodic_work()
1444 	if (atomic_dec_and_test(&bat_priv->bla.loopdetect_next)) {  in batadv_bla_periodic_work()
1449 		eth_random_addr(bat_priv->bla.loopdetect_addr);  in batadv_bla_periodic_work()
1450 		bat_priv->bla.loopdetect_addr[0] = 0xba;  in batadv_bla_periodic_work()
1451 		bat_priv->bla.loopdetect_addr[1] = 0xbe;  in batadv_bla_periodic_work()
1452 		bat_priv->bla.loopdetect_lasttime = jiffies;  in batadv_bla_periodic_work()
1453 		atomic_set(&bat_priv->bla.loopdetect_next,  in batadv_bla_periodic_work()
1460 	hash = bat_priv->bla.backbone_hash;  in batadv_bla_periodic_work()
1475 			batadv_bla_send_announce(bat_priv, backbone_gw);  in batadv_bla_periodic_work()
1477 				batadv_bla_send_loopdetect(bat_priv,  in batadv_bla_periodic_work()
1495 			atomic_dec(&backbone_gw->bat_priv->bla.num_requests);  in batadv_bla_periodic_work()
1504 	queue_delayed_work(batadv_event_workqueue, &bat_priv->bla.work,  in batadv_bla_periodic_work()
1522 int batadv_bla_init(struct batadv_priv *bat_priv)  in batadv_bla_init()  argument
1530 	spin_lock_init(&bat_priv->bla.bcast_duplist_lock);  in batadv_bla_init()
1532 	batadv_dbg(BATADV_DBG_BLA, bat_priv, "bla hash registering\n");  in batadv_bla_init()
1535 	memcpy(&bat_priv->bla.claim_dest.magic, claim_dest, 3);  in batadv_bla_init()
1536 	bat_priv->bla.claim_dest.type = 0;  in batadv_bla_init()
1537 	primary_if = batadv_primary_if_get_selected(bat_priv);  in batadv_bla_init()
1540 		bat_priv->bla.claim_dest.group = htons(crc);  in batadv_bla_init()
1543 		bat_priv->bla.claim_dest.group = 0; /* will be set later */  in batadv_bla_init()
1549 		bat_priv->bla.bcast_duplist[i].entrytime = entrytime;  in batadv_bla_init()
1550 	bat_priv->bla.bcast_duplist_curr = 0;  in batadv_bla_init()
1552 	atomic_set(&bat_priv->bla.loopdetect_next,  in batadv_bla_init()
1555 	if (bat_priv->bla.claim_hash)  in batadv_bla_init()
1558 	bat_priv->bla.claim_hash = batadv_hash_new(128);  in batadv_bla_init()
1559 	bat_priv->bla.backbone_hash = batadv_hash_new(32);  in batadv_bla_init()
1561 	if (!bat_priv->bla.claim_hash || !bat_priv->bla.backbone_hash)  in batadv_bla_init()
1564 	batadv_hash_set_lock_class(bat_priv->bla.claim_hash,  in batadv_bla_init()
1566 	batadv_hash_set_lock_class(bat_priv->bla.backbone_hash,  in batadv_bla_init()
1569 	batadv_dbg(BATADV_DBG_BLA, bat_priv, "bla hashes initialized\n");  in batadv_bla_init()
1571 	INIT_DELAYED_WORK(&bat_priv->bla.work, batadv_bla_periodic_work);  in batadv_bla_init()
1573 	queue_delayed_work(batadv_event_workqueue, &bat_priv->bla.work,  in batadv_bla_init()
1594 bool batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,  in batadv_bla_check_bcast_duplist()  argument
1608 	spin_lock_bh(&bat_priv->bla.bcast_duplist_lock);  in batadv_bla_check_bcast_duplist()
1611 		curr = (bat_priv->bla.bcast_duplist_curr + i);  in batadv_bla_check_bcast_duplist()
1613 		entry = &bat_priv->bla.bcast_duplist[curr];  in batadv_bla_check_bcast_duplist()
1637 	curr = (bat_priv->bla.bcast_duplist_curr + BATADV_DUPLIST_SIZE - 1);  in batadv_bla_check_bcast_duplist()
1639 	entry = &bat_priv->bla.bcast_duplist[curr];  in batadv_bla_check_bcast_duplist()
1643 	bat_priv->bla.bcast_duplist_curr = curr;  in batadv_bla_check_bcast_duplist()
1646 	spin_unlock_bh(&bat_priv->bla.bcast_duplist_lock);  in batadv_bla_check_bcast_duplist()
1660 bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, u8 *orig,  in batadv_bla_is_backbone_gw_orig()  argument
1663 	struct batadv_hashtable *hash = bat_priv->bla.backbone_hash;  in batadv_bla_is_backbone_gw_orig()
1668 	if (!atomic_read(&bat_priv->bridge_loop_avoidance))  in batadv_bla_is_backbone_gw_orig()
1706 	if (!atomic_read(&orig_node->bat_priv->bridge_loop_avoidance))  in batadv_bla_is_backbone_gw()
1716 	backbone_gw = batadv_backbone_hash_find(orig_node->bat_priv,  in batadv_bla_is_backbone_gw()
1731 void batadv_bla_free(struct batadv_priv *bat_priv)  in batadv_bla_free()  argument
1735 	cancel_delayed_work_sync(&bat_priv->bla.work);  in batadv_bla_free()
1736 	primary_if = batadv_primary_if_get_selected(bat_priv);  in batadv_bla_free()
1738 	if (bat_priv->bla.claim_hash) {  in batadv_bla_free()
1739 		batadv_bla_purge_claims(bat_priv, primary_if, 1);  in batadv_bla_free()
1740 		batadv_hash_destroy(bat_priv->bla.claim_hash);  in batadv_bla_free()
1741 		bat_priv->bla.claim_hash = NULL;  in batadv_bla_free()
1743 	if (bat_priv->bla.backbone_hash) {  in batadv_bla_free()
1744 		batadv_bla_purge_backbone_gw(bat_priv, 1);  in batadv_bla_free()
1745 		batadv_hash_destroy(bat_priv->bla.backbone_hash);  in batadv_bla_free()
1746 		bat_priv->bla.backbone_hash = NULL;  in batadv_bla_free()
1766 batadv_bla_loopdetect_check(struct batadv_priv *bat_priv, struct sk_buff *skb,  in batadv_bla_loopdetect_check()  argument
1780 				bat_priv->bla.loopdetect_addr))  in batadv_bla_loopdetect_check()
1786 	if (batadv_has_timed_out(bat_priv->bla.loopdetect_lasttime,  in batadv_bla_loopdetect_check()
1790 	backbone_gw = batadv_bla_get_backbone_gw(bat_priv,  in batadv_bla_loopdetect_check()
1823 bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,  in batadv_bla_rx()  argument
1835 	primary_if = batadv_primary_if_get_selected(bat_priv);  in batadv_bla_rx()
1839 	if (!atomic_read(&bat_priv->bridge_loop_avoidance))  in batadv_bla_rx()
1842 	if (batadv_bla_loopdetect_check(bat_priv, skb, primary_if, vid))  in batadv_bla_rx()
1845 	if (unlikely(atomic_read(&bat_priv->bla.num_requests)))  in batadv_bla_rx()
1852 	claim = batadv_claim_hash_find(bat_priv, &search_claim);  in batadv_bla_rx()
1859 		batadv_dbg(BATADV_DBG_BLA, bat_priv,  in batadv_bla_rx()
1862 			   batadv_is_my_client(bat_priv,  in batadv_bla_rx()
1865 		batadv_handle_claim(bat_priv, primary_if,  in batadv_bla_rx()
1897 		batadv_handle_claim(bat_priv, primary_if,  in batadv_bla_rx()
1903 	batadv_bla_update_own_backbone_gw(bat_priv, primary_if, vid);  in batadv_bla_rx()
1936 bool batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,  in batadv_bla_tx()  argument
1946 	primary_if = batadv_primary_if_get_selected(bat_priv);  in batadv_bla_tx()
1950 	if (!atomic_read(&bat_priv->bridge_loop_avoidance))  in batadv_bla_tx()
1953 	if (batadv_bla_process_claim(bat_priv, primary_if, skb))  in batadv_bla_tx()
1958 	if (unlikely(atomic_read(&bat_priv->bla.num_requests)))  in batadv_bla_tx()
1966 	claim = batadv_claim_hash_find(bat_priv, &search_claim);  in batadv_bla_tx()
1987 			batadv_dbg(BATADV_DBG_BLA, bat_priv, "%s(): Roaming client %pM detected. Unclaim it.\n",  in batadv_bla_tx()
1989 			batadv_handle_unclaim(bat_priv, primary_if,  in batadv_bla_tx()
1994 			batadv_dbg(BATADV_DBG_BLA, bat_priv, "%s(): Race for claim %pM detected. Drop packet.\n",  in batadv_bla_tx()
2013 	batadv_bla_update_own_backbone_gw(bat_priv, primary_if, vid);  in batadv_bla_tx()
2037 	struct batadv_priv *bat_priv = netdev_priv(net_dev);  in batadv_bla_claim_table_seq_print_text()  local
2038 	struct batadv_hashtable *hash = bat_priv->bla.claim_hash;  in batadv_bla_claim_table_seq_print_text()
2056 		   ntohs(bat_priv->bla.claim_dest.group));  in batadv_bla_claim_table_seq_print_text()
2211 	struct batadv_priv *bat_priv;  in batadv_bla_claim_dump()  local
2228 	bat_priv = netdev_priv(soft_iface);  in batadv_bla_claim_dump()
2229 	hash = bat_priv->bla.claim_hash;  in batadv_bla_claim_dump()
2231 	primary_if = batadv_primary_if_get_selected(bat_priv);  in batadv_bla_claim_dump()
2271 	struct batadv_priv *bat_priv = netdev_priv(net_dev);  in batadv_bla_backbone_table_seq_print_text()  local
2272 	struct batadv_hashtable *hash = bat_priv->bla.backbone_hash;  in batadv_bla_backbone_table_seq_print_text()
2290 		   ntohs(bat_priv->bla.claim_dest.group));  in batadv_bla_backbone_table_seq_print_text()
2449 	struct batadv_priv *bat_priv;  in batadv_bla_backbone_dump()  local
2466 	bat_priv = netdev_priv(soft_iface);  in batadv_bla_backbone_dump()
2467 	hash = bat_priv->bla.backbone_hash;  in batadv_bla_backbone_dump()
2469 	primary_if = batadv_primary_if_get_selected(bat_priv);  in batadv_bla_backbone_dump()
2510 bool batadv_bla_check_claim(struct batadv_priv *bat_priv,  in batadv_bla_check_claim()  argument
2518 	if (!atomic_read(&bat_priv->bridge_loop_avoidance))  in batadv_bla_check_claim()
2521 	primary_if = batadv_primary_if_get_selected(bat_priv);  in batadv_bla_check_claim()
2529 	claim = batadv_claim_hash_find(bat_priv, &search_claim);  in batadv_bla_check_claim()