51 	struct batadv_hard_iface *hard_iface;  in batadv_hardif_release()  local
53 	hard_iface = container_of(ref, struct batadv_hard_iface, refcount);  in batadv_hardif_release()
54 	dev_put(hard_iface->net_dev);  in batadv_hardif_release()
56 	kfree_rcu(hard_iface, rcu);  in batadv_hardif_release()
68 	struct batadv_hard_iface *hard_iface;  in batadv_hardif_get_by_netdev()  local
71 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {  in batadv_hardif_get_by_netdev()
72 		if (hard_iface->net_dev == net_dev &&  in batadv_hardif_get_by_netdev()
73 		    kref_get_unless_zero(&hard_iface->refcount))  in batadv_hardif_get_by_netdev()
77 	hard_iface = NULL;  in batadv_hardif_get_by_netdev()
81 	return hard_iface;  in batadv_hardif_get_by_netdev()
218 	struct batadv_hard_iface *hard_iface = NULL;  in batadv_get_real_netdevice()  local
235 	hard_iface = batadv_hardif_get_by_netdev(netdev);  in batadv_get_real_netdevice()
236 	if (!hard_iface || !hard_iface->soft_iface)  in batadv_get_real_netdevice()
239 	net = dev_net(hard_iface->soft_iface);  in batadv_get_real_netdevice()
252 	if (hard_iface)  in batadv_get_real_netdevice()
253 		batadv_hardif_put(hard_iface);  in batadv_get_real_netdevice()
363 bool batadv_is_cfg80211_hardif(struct batadv_hard_iface *hard_iface)  in batadv_is_cfg80211_hardif()  argument
370 	return !!(hard_iface->wifi_flags & allowed_flags);  in batadv_is_cfg80211_hardif()
379 bool batadv_is_wifi_hardif(struct batadv_hard_iface *hard_iface)  in batadv_is_wifi_hardif()  argument
381 	if (!hard_iface)  in batadv_is_wifi_hardif()
384 	return hard_iface->wifi_flags != 0;  in batadv_is_wifi_hardif()
442 	struct batadv_hard_iface *hard_iface;  in batadv_hardif_get_active()  local
445 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {  in batadv_hardif_get_active()
446 		if (hard_iface->soft_iface != soft_iface)  in batadv_hardif_get_active()
449 		if (hard_iface->if_status == BATADV_IF_ACTIVE &&  in batadv_hardif_get_active()
450 		    kref_get_unless_zero(&hard_iface->refcount))  in batadv_hardif_get_active()
454 	hard_iface = NULL;  in batadv_hardif_get_active()
458 	return hard_iface;  in batadv_hardif_get_active()
502 batadv_hardif_is_iface_up(const struct batadv_hard_iface *hard_iface)  in batadv_hardif_is_iface_up()  argument
504 	if (hard_iface->net_dev->flags & IFF_UP)  in batadv_hardif_is_iface_up()
512 	const struct batadv_hard_iface *hard_iface;  in batadv_check_known_mac_addr()  local
515 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {  in batadv_check_known_mac_addr()
516 		if (hard_iface->if_status != BATADV_IF_ACTIVE &&  in batadv_check_known_mac_addr()
517 		    hard_iface->if_status != BATADV_IF_TO_BE_ACTIVATED)  in batadv_check_known_mac_addr()
520 		if (hard_iface->net_dev == net_dev)  in batadv_check_known_mac_addr()
523 		if (!batadv_compare_eth(hard_iface->net_dev->dev_addr,  in batadv_check_known_mac_addr()
528 			net_dev->dev_addr, hard_iface->net_dev->name);  in batadv_check_known_mac_addr()
540 	const struct batadv_hard_iface *hard_iface;  in batadv_hardif_recalc_extra_skbroom()  local
547 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {  in batadv_hardif_recalc_extra_skbroom()
548 		if (hard_iface->if_status == BATADV_IF_NOT_IN_USE)  in batadv_hardif_recalc_extra_skbroom()
551 		if (hard_iface->soft_iface != soft_iface)  in batadv_hardif_recalc_extra_skbroom()
555 					 hard_iface->net_dev->hard_header_len);  in batadv_hardif_recalc_extra_skbroom()
558 				       hard_iface->net_dev->needed_headroom);  in batadv_hardif_recalc_extra_skbroom()
561 				       hard_iface->net_dev->needed_tailroom);  in batadv_hardif_recalc_extra_skbroom()
585 	const struct batadv_hard_iface *hard_iface;  in batadv_hardif_min_mtu()  local
589 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {  in batadv_hardif_min_mtu()
590 		if (hard_iface->if_status != BATADV_IF_ACTIVE &&  in batadv_hardif_min_mtu()
591 		    hard_iface->if_status != BATADV_IF_TO_BE_ACTIVATED)  in batadv_hardif_min_mtu()
594 		if (hard_iface->soft_iface != soft_iface)  in batadv_hardif_min_mtu()
597 		min_mtu = min_t(int, hard_iface->net_dev->mtu, min_mtu);  in batadv_hardif_min_mtu()
656 batadv_hardif_activate_interface(struct batadv_hard_iface *hard_iface)  in batadv_hardif_activate_interface()  argument
661 	if (hard_iface->if_status != BATADV_IF_INACTIVE)  in batadv_hardif_activate_interface()
664 	bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hardif_activate_interface()
666 	bat_priv->algo_ops->iface.update_mac(hard_iface);  in batadv_hardif_activate_interface()
667 	hard_iface->if_status = BATADV_IF_TO_BE_ACTIVATED;  in batadv_hardif_activate_interface()
674 		batadv_primary_if_select(bat_priv, hard_iface);  in batadv_hardif_activate_interface()
676 	batadv_info(hard_iface->soft_iface, "Interface activated: %s\n",  in batadv_hardif_activate_interface()
677 		    hard_iface->net_dev->name);  in batadv_hardif_activate_interface()
679 	batadv_update_min_mtu(hard_iface->soft_iface);  in batadv_hardif_activate_interface()
682 		bat_priv->algo_ops->iface.activate(hard_iface);  in batadv_hardif_activate_interface()
690 batadv_hardif_deactivate_interface(struct batadv_hard_iface *hard_iface)  in batadv_hardif_deactivate_interface()  argument
692 	if (hard_iface->if_status != BATADV_IF_ACTIVE &&  in batadv_hardif_deactivate_interface()
693 	    hard_iface->if_status != BATADV_IF_TO_BE_ACTIVATED)  in batadv_hardif_deactivate_interface()
696 	hard_iface->if_status = BATADV_IF_INACTIVE;  in batadv_hardif_deactivate_interface()
698 	batadv_info(hard_iface->soft_iface, "Interface deactivated: %s\n",  in batadv_hardif_deactivate_interface()
699 		    hard_iface->net_dev->name);  in batadv_hardif_deactivate_interface()
701 	batadv_update_min_mtu(hard_iface->soft_iface);  in batadv_hardif_deactivate_interface()
737 int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,  in batadv_hardif_enable_interface()  argument
746 	if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)  in batadv_hardif_enable_interface()
749 	kref_get(&hard_iface->refcount);  in batadv_hardif_enable_interface()
775 	master = netdev_master_upper_dev_get(hard_iface->net_dev);  in batadv_hardif_enable_interface()
776 	ret = batadv_master_del_slave(hard_iface, master);  in batadv_hardif_enable_interface()
780 	hard_iface->soft_iface = soft_iface;  in batadv_hardif_enable_interface()
781 	bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hardif_enable_interface()
783 	ret = netdev_master_upper_dev_link(hard_iface->net_dev,  in batadv_hardif_enable_interface()
788 	ret = bat_priv->algo_ops->iface.enable(hard_iface);  in batadv_hardif_enable_interface()
792 	hard_iface->if_status = BATADV_IF_INACTIVE;  in batadv_hardif_enable_interface()
794 	kref_get(&hard_iface->refcount);  in batadv_hardif_enable_interface()
795 	hard_iface->batman_adv_ptype.type = ethertype;  in batadv_hardif_enable_interface()
796 	hard_iface->batman_adv_ptype.func = batadv_batman_skb_recv;  in batadv_hardif_enable_interface()
797 	hard_iface->batman_adv_ptype.dev = hard_iface->net_dev;  in batadv_hardif_enable_interface()
798 	dev_add_pack(&hard_iface->batman_adv_ptype);  in batadv_hardif_enable_interface()
800 	batadv_info(hard_iface->soft_iface, "Adding interface: %s\n",  in batadv_hardif_enable_interface()
801 		    hard_iface->net_dev->name);  in batadv_hardif_enable_interface()
804 	    hard_iface->net_dev->mtu < ETH_DATA_LEN + max_header_len)  in batadv_hardif_enable_interface()
805 		batadv_info(hard_iface->soft_iface,  in batadv_hardif_enable_interface()
807 			    hard_iface->net_dev->name, hard_iface->net_dev->mtu,  in batadv_hardif_enable_interface()
811 	    hard_iface->net_dev->mtu < ETH_DATA_LEN + max_header_len)  in batadv_hardif_enable_interface()
812 		batadv_info(hard_iface->soft_iface,  in batadv_hardif_enable_interface()
814 			    hard_iface->net_dev->name, hard_iface->net_dev->mtu,  in batadv_hardif_enable_interface()
817 	if (batadv_hardif_is_iface_up(hard_iface))  in batadv_hardif_enable_interface()
818 		batadv_hardif_activate_interface(hard_iface);  in batadv_hardif_enable_interface()
820 		batadv_err(hard_iface->soft_iface,  in batadv_hardif_enable_interface()
822 			   hard_iface->net_dev->name);  in batadv_hardif_enable_interface()
827 		bat_priv->algo_ops->iface.enabled(hard_iface);  in batadv_hardif_enable_interface()
833 	netdev_upper_dev_unlink(hard_iface->net_dev, soft_iface);  in batadv_hardif_enable_interface()
835 	hard_iface->soft_iface = NULL;  in batadv_hardif_enable_interface()
838 	batadv_hardif_put(hard_iface);  in batadv_hardif_enable_interface()
854 	struct batadv_hard_iface *hard_iface;  in batadv_hardif_cnt()  local
858 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {  in batadv_hardif_cnt()
859 		if (hard_iface->soft_iface != soft_iface)  in batadv_hardif_cnt()
875 void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface,  in batadv_hardif_disable_interface()  argument
878 	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
881 	batadv_hardif_deactivate_interface(hard_iface);  in batadv_hardif_disable_interface()
883 	if (hard_iface->if_status != BATADV_IF_INACTIVE)  in batadv_hardif_disable_interface()
886 	batadv_info(hard_iface->soft_iface, "Removing interface: %s\n",  in batadv_hardif_disable_interface()
887 		    hard_iface->net_dev->name);  in batadv_hardif_disable_interface()
888 	dev_remove_pack(&hard_iface->batman_adv_ptype);  in batadv_hardif_disable_interface()
889 	batadv_hardif_put(hard_iface);  in batadv_hardif_disable_interface()
892 	if (hard_iface == primary_if) {  in batadv_hardif_disable_interface()
895 		new_if = batadv_hardif_get_active(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
902 	bat_priv->algo_ops->iface.disable(hard_iface);  in batadv_hardif_disable_interface()
903 	hard_iface->if_status = BATADV_IF_NOT_IN_USE;  in batadv_hardif_disable_interface()
907 	batadv_purge_outstanding_packets(bat_priv, hard_iface);  in batadv_hardif_disable_interface()
908 	dev_put(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
910 	netdev_upper_dev_unlink(hard_iface->net_dev, hard_iface->soft_iface);  in batadv_hardif_disable_interface()
911 	batadv_hardif_recalc_extra_skbroom(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
914 	if (batadv_hardif_cnt(hard_iface->soft_iface) <= 1) {  in batadv_hardif_disable_interface()
918 			batadv_softif_destroy_sysfs(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
921 	hard_iface->soft_iface = NULL;  in batadv_hardif_disable_interface()
922 	batadv_hardif_put(hard_iface);  in batadv_hardif_disable_interface()
932 	struct batadv_hard_iface *hard_iface;  in batadv_hardif_add_interface()  local
942 	hard_iface = kzalloc(sizeof(*hard_iface), GFP_ATOMIC);  in batadv_hardif_add_interface()
943 	if (!hard_iface)  in batadv_hardif_add_interface()
946 	ret = batadv_sysfs_add_hardif(&hard_iface->hardif_obj, net_dev);  in batadv_hardif_add_interface()
950 	hard_iface->net_dev = net_dev;  in batadv_hardif_add_interface()
951 	hard_iface->soft_iface = NULL;  in batadv_hardif_add_interface()
952 	hard_iface->if_status = BATADV_IF_NOT_IN_USE;  in batadv_hardif_add_interface()
954 	batadv_debugfs_add_hardif(hard_iface);  in batadv_hardif_add_interface()
956 	INIT_LIST_HEAD(&hard_iface->list);  in batadv_hardif_add_interface()
957 	INIT_HLIST_HEAD(&hard_iface->neigh_list);  in batadv_hardif_add_interface()
959 	mutex_init(&hard_iface->bat_iv.ogm_buff_mutex);  in batadv_hardif_add_interface()
960 	spin_lock_init(&hard_iface->neigh_list_lock);  in batadv_hardif_add_interface()
961 	kref_init(&hard_iface->refcount);  in batadv_hardif_add_interface()
963 	hard_iface->num_bcasts = BATADV_NUM_BCASTS_DEFAULT;  in batadv_hardif_add_interface()
964 	hard_iface->wifi_flags = batadv_wifi_flags_evaluate(net_dev);  in batadv_hardif_add_interface()
965 	if (batadv_is_wifi_hardif(hard_iface))  in batadv_hardif_add_interface()
966 		hard_iface->num_bcasts = BATADV_NUM_BCASTS_WIRELESS;  in batadv_hardif_add_interface()
968 	batadv_v_hardif_init(hard_iface);  in batadv_hardif_add_interface()
970 	batadv_check_known_mac_addr(hard_iface->net_dev);  in batadv_hardif_add_interface()
971 	kref_get(&hard_iface->refcount);  in batadv_hardif_add_interface()
972 	list_add_tail_rcu(&hard_iface->list, &batadv_hardif_list);  in batadv_hardif_add_interface()
975 	return hard_iface;  in batadv_hardif_add_interface()
978 	kfree(hard_iface);  in batadv_hardif_add_interface()
985 static void batadv_hardif_remove_interface(struct batadv_hard_iface *hard_iface)  in batadv_hardif_remove_interface()  argument
990 	if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)  in batadv_hardif_remove_interface()
991 		batadv_hardif_disable_interface(hard_iface,  in batadv_hardif_remove_interface()
994 	if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)  in batadv_hardif_remove_interface()
997 	hard_iface->if_status = BATADV_IF_TO_BE_REMOVED;  in batadv_hardif_remove_interface()
998 	batadv_debugfs_del_hardif(hard_iface);  in batadv_hardif_remove_interface()
999 	batadv_sysfs_del_hardif(&hard_iface->hardif_obj);  in batadv_hardif_remove_interface()
1000 	batadv_hardif_put(hard_iface);  in batadv_hardif_remove_interface()
1008 	struct batadv_hard_iface *hard_iface, *hard_iface_tmp;  in batadv_hardif_remove_interfaces()  local
1011 	list_for_each_entry_safe(hard_iface, hard_iface_tmp,  in batadv_hardif_remove_interfaces()
1013 		list_del_rcu(&hard_iface->list);  in batadv_hardif_remove_interfaces()
1015 		batadv_hardif_remove_interface(hard_iface);  in batadv_hardif_remove_interfaces()
1050 	struct batadv_hard_iface *hard_iface;  in batadv_hard_if_event()  local
1057 	hard_iface = batadv_hardif_get_by_netdev(net_dev);  in batadv_hard_if_event()
1058 	if (!hard_iface && (event == NETDEV_REGISTER ||  in batadv_hard_if_event()
1060 		hard_iface = batadv_hardif_add_interface(net_dev);  in batadv_hard_if_event()
1062 	if (!hard_iface)  in batadv_hard_if_event()
1067 		batadv_hardif_activate_interface(hard_iface);  in batadv_hard_if_event()
1071 		batadv_hardif_deactivate_interface(hard_iface);  in batadv_hard_if_event()
1075 		list_del_rcu(&hard_iface->list);  in batadv_hard_if_event()
1078 		batadv_hardif_remove_interface(hard_iface);  in batadv_hard_if_event()
1081 		if (hard_iface->soft_iface)  in batadv_hard_if_event()
1082 			batadv_update_min_mtu(hard_iface->soft_iface);  in batadv_hard_if_event()
1085 		if (hard_iface->if_status == BATADV_IF_NOT_IN_USE)  in batadv_hard_if_event()
1088 		batadv_check_known_mac_addr(hard_iface->net_dev);  in batadv_hard_if_event()
1090 		bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hard_if_event()
1091 		bat_priv->algo_ops->iface.update_mac(hard_iface);  in batadv_hard_if_event()
1097 		if (hard_iface == primary_if)  in batadv_hard_if_event()
1101 		hard_iface->wifi_flags = batadv_wifi_flags_evaluate(net_dev);  in batadv_hard_if_event()
1102 		if (batadv_is_wifi_hardif(hard_iface))  in batadv_hard_if_event()
1103 			hard_iface->num_bcasts = BATADV_NUM_BCASTS_WIRELESS;  in batadv_hard_if_event()
1106 		batadv_debugfs_rename_hardif(hard_iface);  in batadv_hard_if_event()
1113 	batadv_hardif_put(hard_iface);  in batadv_hard_if_event()