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()
215 	struct batadv_hard_iface *hard_iface = NULL;  in batadv_get_real_netdevice()  local
231 	hard_iface = batadv_hardif_get_by_netdev(netdev);  in batadv_get_real_netdevice()
232 	if (!hard_iface || !hard_iface->soft_iface)  in batadv_get_real_netdevice()
235 	net = dev_net(hard_iface->soft_iface);  in batadv_get_real_netdevice()
241 	if (hard_iface)  in batadv_get_real_netdevice()
242 		batadv_hardif_put(hard_iface);  in batadv_get_real_netdevice()
352 bool batadv_is_cfg80211_hardif(struct batadv_hard_iface *hard_iface)  in batadv_is_cfg80211_hardif()  argument
359 	return !!(hard_iface->wifi_flags & allowed_flags);  in batadv_is_cfg80211_hardif()
368 bool batadv_is_wifi_hardif(struct batadv_hard_iface *hard_iface)  in batadv_is_wifi_hardif()  argument
370 	if (!hard_iface)  in batadv_is_wifi_hardif()
373 	return hard_iface->wifi_flags != 0;  in batadv_is_wifi_hardif()
431 	struct batadv_hard_iface *hard_iface;  in batadv_hardif_get_active()  local
434 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {  in batadv_hardif_get_active()
435 		if (hard_iface->soft_iface != soft_iface)  in batadv_hardif_get_active()
438 		if (hard_iface->if_status == BATADV_IF_ACTIVE &&  in batadv_hardif_get_active()
439 		    kref_get_unless_zero(&hard_iface->refcount))  in batadv_hardif_get_active()
443 	hard_iface = NULL;  in batadv_hardif_get_active()
447 	return hard_iface;  in batadv_hardif_get_active()
491 batadv_hardif_is_iface_up(const struct batadv_hard_iface *hard_iface)  in batadv_hardif_is_iface_up()  argument
493 	if (hard_iface->net_dev->flags & IFF_UP)  in batadv_hardif_is_iface_up()
501 	const struct batadv_hard_iface *hard_iface;  in batadv_check_known_mac_addr()  local
504 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {  in batadv_check_known_mac_addr()
505 		if (hard_iface->if_status != BATADV_IF_ACTIVE &&  in batadv_check_known_mac_addr()
506 		    hard_iface->if_status != BATADV_IF_TO_BE_ACTIVATED)  in batadv_check_known_mac_addr()
509 		if (hard_iface->net_dev == net_dev)  in batadv_check_known_mac_addr()
512 		if (!batadv_compare_eth(hard_iface->net_dev->dev_addr,  in batadv_check_known_mac_addr()
517 			net_dev->dev_addr, hard_iface->net_dev->name);  in batadv_check_known_mac_addr()
529 	const struct batadv_hard_iface *hard_iface;  in batadv_hardif_recalc_extra_skbroom()  local
536 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {  in batadv_hardif_recalc_extra_skbroom()
537 		if (hard_iface->if_status == BATADV_IF_NOT_IN_USE)  in batadv_hardif_recalc_extra_skbroom()
540 		if (hard_iface->soft_iface != soft_iface)  in batadv_hardif_recalc_extra_skbroom()
544 					 hard_iface->net_dev->hard_header_len);  in batadv_hardif_recalc_extra_skbroom()
547 				       hard_iface->net_dev->needed_headroom);  in batadv_hardif_recalc_extra_skbroom()
550 				       hard_iface->net_dev->needed_tailroom);  in batadv_hardif_recalc_extra_skbroom()
571 	const struct batadv_hard_iface *hard_iface;  in batadv_hardif_min_mtu()  local
575 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {  in batadv_hardif_min_mtu()
576 		if (hard_iface->if_status != BATADV_IF_ACTIVE &&  in batadv_hardif_min_mtu()
577 		    hard_iface->if_status != BATADV_IF_TO_BE_ACTIVATED)  in batadv_hardif_min_mtu()
580 		if (hard_iface->soft_iface != soft_iface)  in batadv_hardif_min_mtu()
583 		min_mtu = min_t(int, hard_iface->net_dev->mtu, min_mtu);  in batadv_hardif_min_mtu()
630 batadv_hardif_activate_interface(struct batadv_hard_iface *hard_iface)  in batadv_hardif_activate_interface()  argument
635 	if (hard_iface->if_status != BATADV_IF_INACTIVE)  in batadv_hardif_activate_interface()
638 	bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hardif_activate_interface()
640 	bat_priv->algo_ops->iface.update_mac(hard_iface);  in batadv_hardif_activate_interface()
641 	hard_iface->if_status = BATADV_IF_TO_BE_ACTIVATED;  in batadv_hardif_activate_interface()
648 		batadv_primary_if_select(bat_priv, hard_iface);  in batadv_hardif_activate_interface()
650 	batadv_info(hard_iface->soft_iface, "Interface activated: %s\n",  in batadv_hardif_activate_interface()
651 		    hard_iface->net_dev->name);  in batadv_hardif_activate_interface()
653 	batadv_update_min_mtu(hard_iface->soft_iface);  in batadv_hardif_activate_interface()
656 		bat_priv->algo_ops->iface.activate(hard_iface);  in batadv_hardif_activate_interface()
664 batadv_hardif_deactivate_interface(struct batadv_hard_iface *hard_iface)  in batadv_hardif_deactivate_interface()  argument
666 	if (hard_iface->if_status != BATADV_IF_ACTIVE &&  in batadv_hardif_deactivate_interface()
667 	    hard_iface->if_status != BATADV_IF_TO_BE_ACTIVATED)  in batadv_hardif_deactivate_interface()
670 	hard_iface->if_status = BATADV_IF_INACTIVE;  in batadv_hardif_deactivate_interface()
672 	batadv_info(hard_iface->soft_iface, "Interface deactivated: %s\n",  in batadv_hardif_deactivate_interface()
673 		    hard_iface->net_dev->name);  in batadv_hardif_deactivate_interface()
675 	batadv_update_min_mtu(hard_iface->soft_iface);  in batadv_hardif_deactivate_interface()
711 int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,  in batadv_hardif_enable_interface()  argument
720 	if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)  in batadv_hardif_enable_interface()
723 	kref_get(&hard_iface->refcount);  in batadv_hardif_enable_interface()
749 	master = netdev_master_upper_dev_get(hard_iface->net_dev);  in batadv_hardif_enable_interface()
750 	ret = batadv_master_del_slave(hard_iface, master);  in batadv_hardif_enable_interface()
754 	hard_iface->soft_iface = soft_iface;  in batadv_hardif_enable_interface()
755 	bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hardif_enable_interface()
757 	ret = netdev_master_upper_dev_link(hard_iface->net_dev,  in batadv_hardif_enable_interface()
762 	ret = bat_priv->algo_ops->iface.enable(hard_iface);  in batadv_hardif_enable_interface()
766 	hard_iface->if_status = BATADV_IF_INACTIVE;  in batadv_hardif_enable_interface()
768 	kref_get(&hard_iface->refcount);  in batadv_hardif_enable_interface()
769 	hard_iface->batman_adv_ptype.type = ethertype;  in batadv_hardif_enable_interface()
770 	hard_iface->batman_adv_ptype.func = batadv_batman_skb_recv;  in batadv_hardif_enable_interface()
771 	hard_iface->batman_adv_ptype.dev = hard_iface->net_dev;  in batadv_hardif_enable_interface()
772 	dev_add_pack(&hard_iface->batman_adv_ptype);  in batadv_hardif_enable_interface()
774 	batadv_info(hard_iface->soft_iface, "Adding interface: %s\n",  in batadv_hardif_enable_interface()
775 		    hard_iface->net_dev->name);  in batadv_hardif_enable_interface()
778 	    hard_iface->net_dev->mtu < ETH_DATA_LEN + max_header_len)  in batadv_hardif_enable_interface()
779 		batadv_info(hard_iface->soft_iface,  in batadv_hardif_enable_interface()
781 			    hard_iface->net_dev->name, hard_iface->net_dev->mtu,  in batadv_hardif_enable_interface()
785 	    hard_iface->net_dev->mtu < ETH_DATA_LEN + max_header_len)  in batadv_hardif_enable_interface()
786 		batadv_info(hard_iface->soft_iface,  in batadv_hardif_enable_interface()
788 			    hard_iface->net_dev->name, hard_iface->net_dev->mtu,  in batadv_hardif_enable_interface()
791 	if (batadv_hardif_is_iface_up(hard_iface))  in batadv_hardif_enable_interface()
792 		batadv_hardif_activate_interface(hard_iface);  in batadv_hardif_enable_interface()
794 		batadv_err(hard_iface->soft_iface,  in batadv_hardif_enable_interface()
796 			   hard_iface->net_dev->name);  in batadv_hardif_enable_interface()
801 		bat_priv->algo_ops->iface.enabled(hard_iface);  in batadv_hardif_enable_interface()
807 	netdev_upper_dev_unlink(hard_iface->net_dev, soft_iface);  in batadv_hardif_enable_interface()
809 	hard_iface->soft_iface = NULL;  in batadv_hardif_enable_interface()
812 	batadv_hardif_put(hard_iface);  in batadv_hardif_enable_interface()
828 	struct batadv_hard_iface *hard_iface;  in batadv_hardif_cnt()  local
832 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {  in batadv_hardif_cnt()
833 		if (hard_iface->soft_iface != soft_iface)  in batadv_hardif_cnt()
849 void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface,  in batadv_hardif_disable_interface()  argument
852 	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
855 	batadv_hardif_deactivate_interface(hard_iface);  in batadv_hardif_disable_interface()
857 	if (hard_iface->if_status != BATADV_IF_INACTIVE)  in batadv_hardif_disable_interface()
860 	batadv_info(hard_iface->soft_iface, "Removing interface: %s\n",  in batadv_hardif_disable_interface()
861 		    hard_iface->net_dev->name);  in batadv_hardif_disable_interface()
862 	dev_remove_pack(&hard_iface->batman_adv_ptype);  in batadv_hardif_disable_interface()
863 	batadv_hardif_put(hard_iface);  in batadv_hardif_disable_interface()
866 	if (hard_iface == primary_if) {  in batadv_hardif_disable_interface()
869 		new_if = batadv_hardif_get_active(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
876 	bat_priv->algo_ops->iface.disable(hard_iface);  in batadv_hardif_disable_interface()
877 	hard_iface->if_status = BATADV_IF_NOT_IN_USE;  in batadv_hardif_disable_interface()
881 	batadv_purge_outstanding_packets(bat_priv, hard_iface);  in batadv_hardif_disable_interface()
882 	dev_put(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
884 	netdev_upper_dev_unlink(hard_iface->net_dev, hard_iface->soft_iface);  in batadv_hardif_disable_interface()
885 	batadv_hardif_recalc_extra_skbroom(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
888 	if (batadv_hardif_cnt(hard_iface->soft_iface) <= 1) {  in batadv_hardif_disable_interface()
892 			batadv_softif_destroy_sysfs(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
895 	hard_iface->soft_iface = NULL;  in batadv_hardif_disable_interface()
896 	batadv_hardif_put(hard_iface);  in batadv_hardif_disable_interface()
906 	struct batadv_hard_iface *hard_iface;  in batadv_hardif_add_interface()  local
916 	hard_iface = kzalloc(sizeof(*hard_iface), GFP_ATOMIC);  in batadv_hardif_add_interface()
917 	if (!hard_iface)  in batadv_hardif_add_interface()
920 	ret = batadv_sysfs_add_hardif(&hard_iface->hardif_obj, net_dev);  in batadv_hardif_add_interface()
924 	hard_iface->net_dev = net_dev;  in batadv_hardif_add_interface()
925 	hard_iface->soft_iface = NULL;  in batadv_hardif_add_interface()
926 	hard_iface->if_status = BATADV_IF_NOT_IN_USE;  in batadv_hardif_add_interface()
928 	batadv_debugfs_add_hardif(hard_iface);  in batadv_hardif_add_interface()
930 	INIT_LIST_HEAD(&hard_iface->list);  in batadv_hardif_add_interface()
931 	INIT_HLIST_HEAD(&hard_iface->neigh_list);  in batadv_hardif_add_interface()
933 	mutex_init(&hard_iface->bat_iv.ogm_buff_mutex);  in batadv_hardif_add_interface()
934 	spin_lock_init(&hard_iface->neigh_list_lock);  in batadv_hardif_add_interface()
935 	kref_init(&hard_iface->refcount);  in batadv_hardif_add_interface()
937 	hard_iface->num_bcasts = BATADV_NUM_BCASTS_DEFAULT;  in batadv_hardif_add_interface()
938 	hard_iface->wifi_flags = batadv_wifi_flags_evaluate(net_dev);  in batadv_hardif_add_interface()
939 	if (batadv_is_wifi_hardif(hard_iface))  in batadv_hardif_add_interface()
940 		hard_iface->num_bcasts = BATADV_NUM_BCASTS_WIRELESS;  in batadv_hardif_add_interface()
942 	batadv_v_hardif_init(hard_iface);  in batadv_hardif_add_interface()
944 	batadv_check_known_mac_addr(hard_iface->net_dev);  in batadv_hardif_add_interface()
945 	kref_get(&hard_iface->refcount);  in batadv_hardif_add_interface()
946 	list_add_tail_rcu(&hard_iface->list, &batadv_hardif_list);  in batadv_hardif_add_interface()
949 	return hard_iface;  in batadv_hardif_add_interface()
952 	kfree(hard_iface);  in batadv_hardif_add_interface()
959 static void batadv_hardif_remove_interface(struct batadv_hard_iface *hard_iface)  in batadv_hardif_remove_interface()  argument
964 	if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)  in batadv_hardif_remove_interface()
965 		batadv_hardif_disable_interface(hard_iface,  in batadv_hardif_remove_interface()
968 	if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)  in batadv_hardif_remove_interface()
971 	hard_iface->if_status = BATADV_IF_TO_BE_REMOVED;  in batadv_hardif_remove_interface()
972 	batadv_debugfs_del_hardif(hard_iface);  in batadv_hardif_remove_interface()
973 	batadv_sysfs_del_hardif(&hard_iface->hardif_obj);  in batadv_hardif_remove_interface()
974 	batadv_hardif_put(hard_iface);  in batadv_hardif_remove_interface()
982 	struct batadv_hard_iface *hard_iface, *hard_iface_tmp;  in batadv_hardif_remove_interfaces()  local
985 	list_for_each_entry_safe(hard_iface, hard_iface_tmp,  in batadv_hardif_remove_interfaces()
987 		list_del_rcu(&hard_iface->list);  in batadv_hardif_remove_interfaces()
989 		batadv_hardif_remove_interface(hard_iface);  in batadv_hardif_remove_interfaces()
1024 	struct batadv_hard_iface *hard_iface;  in batadv_hard_if_event()  local
1031 	hard_iface = batadv_hardif_get_by_netdev(net_dev);  in batadv_hard_if_event()
1032 	if (!hard_iface && (event == NETDEV_REGISTER ||  in batadv_hard_if_event()
1034 		hard_iface = batadv_hardif_add_interface(net_dev);  in batadv_hard_if_event()
1036 	if (!hard_iface)  in batadv_hard_if_event()
1041 		batadv_hardif_activate_interface(hard_iface);  in batadv_hard_if_event()
1045 		batadv_hardif_deactivate_interface(hard_iface);  in batadv_hard_if_event()
1049 		list_del_rcu(&hard_iface->list);  in batadv_hard_if_event()
1052 		batadv_hardif_remove_interface(hard_iface);  in batadv_hard_if_event()
1055 		if (hard_iface->soft_iface)  in batadv_hard_if_event()
1056 			batadv_update_min_mtu(hard_iface->soft_iface);  in batadv_hard_if_event()
1059 		if (hard_iface->if_status == BATADV_IF_NOT_IN_USE)  in batadv_hard_if_event()
1062 		batadv_check_known_mac_addr(hard_iface->net_dev);  in batadv_hard_if_event()
1064 		bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hard_if_event()
1065 		bat_priv->algo_ops->iface.update_mac(hard_iface);  in batadv_hard_if_event()
1071 		if (hard_iface == primary_if)  in batadv_hard_if_event()
1075 		hard_iface->wifi_flags = batadv_wifi_flags_evaluate(net_dev);  in batadv_hard_if_event()
1076 		if (batadv_is_wifi_hardif(hard_iface))  in batadv_hard_if_event()
1077 			hard_iface->num_bcasts = BATADV_NUM_BCASTS_WIRELESS;  in batadv_hard_if_event()
1080 		batadv_debugfs_rename_hardif(hard_iface);  in batadv_hard_if_event()
1087 	batadv_hardif_put(hard_iface);  in batadv_hard_if_event()