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()
644 batadv_hardif_activate_interface(struct batadv_hard_iface *hard_iface)  in batadv_hardif_activate_interface()  argument
649 	if (hard_iface->if_status != BATADV_IF_INACTIVE)  in batadv_hardif_activate_interface()
652 	bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hardif_activate_interface()
654 	bat_priv->algo_ops->iface.update_mac(hard_iface);  in batadv_hardif_activate_interface()
655 	hard_iface->if_status = BATADV_IF_TO_BE_ACTIVATED;  in batadv_hardif_activate_interface()
662 		batadv_primary_if_select(bat_priv, hard_iface);  in batadv_hardif_activate_interface()
664 	batadv_info(hard_iface->soft_iface, "Interface activated: %s\n",  in batadv_hardif_activate_interface()
665 		    hard_iface->net_dev->name);  in batadv_hardif_activate_interface()
667 	batadv_update_min_mtu(hard_iface->soft_iface);  in batadv_hardif_activate_interface()
670 		bat_priv->algo_ops->iface.activate(hard_iface);  in batadv_hardif_activate_interface()
678 batadv_hardif_deactivate_interface(struct batadv_hard_iface *hard_iface)  in batadv_hardif_deactivate_interface()  argument
680 	if (hard_iface->if_status != BATADV_IF_ACTIVE &&  in batadv_hardif_deactivate_interface()
681 	    hard_iface->if_status != BATADV_IF_TO_BE_ACTIVATED)  in batadv_hardif_deactivate_interface()
684 	hard_iface->if_status = BATADV_IF_INACTIVE;  in batadv_hardif_deactivate_interface()
686 	batadv_info(hard_iface->soft_iface, "Interface deactivated: %s\n",  in batadv_hardif_deactivate_interface()
687 		    hard_iface->net_dev->name);  in batadv_hardif_deactivate_interface()
689 	batadv_update_min_mtu(hard_iface->soft_iface);  in batadv_hardif_deactivate_interface()
725 int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,  in batadv_hardif_enable_interface()  argument
734 	if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)  in batadv_hardif_enable_interface()
737 	kref_get(&hard_iface->refcount);  in batadv_hardif_enable_interface()
763 	master = netdev_master_upper_dev_get(hard_iface->net_dev);  in batadv_hardif_enable_interface()
764 	ret = batadv_master_del_slave(hard_iface, master);  in batadv_hardif_enable_interface()
768 	hard_iface->soft_iface = soft_iface;  in batadv_hardif_enable_interface()
769 	bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hardif_enable_interface()
771 	ret = netdev_master_upper_dev_link(hard_iface->net_dev,  in batadv_hardif_enable_interface()
776 	ret = bat_priv->algo_ops->iface.enable(hard_iface);  in batadv_hardif_enable_interface()
780 	hard_iface->if_status = BATADV_IF_INACTIVE;  in batadv_hardif_enable_interface()
782 	kref_get(&hard_iface->refcount);  in batadv_hardif_enable_interface()
783 	hard_iface->batman_adv_ptype.type = ethertype;  in batadv_hardif_enable_interface()
784 	hard_iface->batman_adv_ptype.func = batadv_batman_skb_recv;  in batadv_hardif_enable_interface()
785 	hard_iface->batman_adv_ptype.dev = hard_iface->net_dev;  in batadv_hardif_enable_interface()
786 	dev_add_pack(&hard_iface->batman_adv_ptype);  in batadv_hardif_enable_interface()
788 	batadv_info(hard_iface->soft_iface, "Adding interface: %s\n",  in batadv_hardif_enable_interface()
789 		    hard_iface->net_dev->name);  in batadv_hardif_enable_interface()
792 	    hard_iface->net_dev->mtu < ETH_DATA_LEN + max_header_len)  in batadv_hardif_enable_interface()
793 		batadv_info(hard_iface->soft_iface,  in batadv_hardif_enable_interface()
795 			    hard_iface->net_dev->name, hard_iface->net_dev->mtu,  in batadv_hardif_enable_interface()
799 	    hard_iface->net_dev->mtu < ETH_DATA_LEN + max_header_len)  in batadv_hardif_enable_interface()
800 		batadv_info(hard_iface->soft_iface,  in batadv_hardif_enable_interface()
802 			    hard_iface->net_dev->name, hard_iface->net_dev->mtu,  in batadv_hardif_enable_interface()
805 	if (batadv_hardif_is_iface_up(hard_iface))  in batadv_hardif_enable_interface()
806 		batadv_hardif_activate_interface(hard_iface);  in batadv_hardif_enable_interface()
808 		batadv_err(hard_iface->soft_iface,  in batadv_hardif_enable_interface()
810 			   hard_iface->net_dev->name);  in batadv_hardif_enable_interface()
815 		bat_priv->algo_ops->iface.enabled(hard_iface);  in batadv_hardif_enable_interface()
821 	netdev_upper_dev_unlink(hard_iface->net_dev, soft_iface);  in batadv_hardif_enable_interface()
823 	hard_iface->soft_iface = NULL;  in batadv_hardif_enable_interface()
826 	batadv_hardif_put(hard_iface);  in batadv_hardif_enable_interface()
842 	struct batadv_hard_iface *hard_iface;  in batadv_hardif_cnt()  local
846 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {  in batadv_hardif_cnt()
847 		if (hard_iface->soft_iface != soft_iface)  in batadv_hardif_cnt()
863 void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface,  in batadv_hardif_disable_interface()  argument
866 	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
869 	batadv_hardif_deactivate_interface(hard_iface);  in batadv_hardif_disable_interface()
871 	if (hard_iface->if_status != BATADV_IF_INACTIVE)  in batadv_hardif_disable_interface()
874 	batadv_info(hard_iface->soft_iface, "Removing interface: %s\n",  in batadv_hardif_disable_interface()
875 		    hard_iface->net_dev->name);  in batadv_hardif_disable_interface()
876 	dev_remove_pack(&hard_iface->batman_adv_ptype);  in batadv_hardif_disable_interface()
877 	batadv_hardif_put(hard_iface);  in batadv_hardif_disable_interface()
880 	if (hard_iface == primary_if) {  in batadv_hardif_disable_interface()
883 		new_if = batadv_hardif_get_active(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
890 	bat_priv->algo_ops->iface.disable(hard_iface);  in batadv_hardif_disable_interface()
891 	hard_iface->if_status = BATADV_IF_NOT_IN_USE;  in batadv_hardif_disable_interface()
895 	batadv_purge_outstanding_packets(bat_priv, hard_iface);  in batadv_hardif_disable_interface()
896 	dev_put(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
898 	netdev_upper_dev_unlink(hard_iface->net_dev, hard_iface->soft_iface);  in batadv_hardif_disable_interface()
899 	batadv_hardif_recalc_extra_skbroom(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
902 	if (batadv_hardif_cnt(hard_iface->soft_iface) <= 1) {  in batadv_hardif_disable_interface()
906 			batadv_softif_destroy_sysfs(hard_iface->soft_iface);  in batadv_hardif_disable_interface()
909 	hard_iface->soft_iface = NULL;  in batadv_hardif_disable_interface()
910 	batadv_hardif_put(hard_iface);  in batadv_hardif_disable_interface()
920 	struct batadv_hard_iface *hard_iface;  in batadv_hardif_add_interface()  local
930 	hard_iface = kzalloc(sizeof(*hard_iface), GFP_ATOMIC);  in batadv_hardif_add_interface()
931 	if (!hard_iface)  in batadv_hardif_add_interface()
934 	ret = batadv_sysfs_add_hardif(&hard_iface->hardif_obj, net_dev);  in batadv_hardif_add_interface()
938 	hard_iface->net_dev = net_dev;  in batadv_hardif_add_interface()
939 	hard_iface->soft_iface = NULL;  in batadv_hardif_add_interface()
940 	hard_iface->if_status = BATADV_IF_NOT_IN_USE;  in batadv_hardif_add_interface()
942 	batadv_debugfs_add_hardif(hard_iface);  in batadv_hardif_add_interface()
944 	INIT_LIST_HEAD(&hard_iface->list);  in batadv_hardif_add_interface()
945 	INIT_HLIST_HEAD(&hard_iface->neigh_list);  in batadv_hardif_add_interface()
947 	mutex_init(&hard_iface->bat_iv.ogm_buff_mutex);  in batadv_hardif_add_interface()
948 	spin_lock_init(&hard_iface->neigh_list_lock);  in batadv_hardif_add_interface()
949 	kref_init(&hard_iface->refcount);  in batadv_hardif_add_interface()
951 	hard_iface->num_bcasts = BATADV_NUM_BCASTS_DEFAULT;  in batadv_hardif_add_interface()
952 	hard_iface->wifi_flags = batadv_wifi_flags_evaluate(net_dev);  in batadv_hardif_add_interface()
953 	if (batadv_is_wifi_hardif(hard_iface))  in batadv_hardif_add_interface()
954 		hard_iface->num_bcasts = BATADV_NUM_BCASTS_WIRELESS;  in batadv_hardif_add_interface()
956 	atomic_set(&hard_iface->hop_penalty, 0);  in batadv_hardif_add_interface()
958 	batadv_v_hardif_init(hard_iface);  in batadv_hardif_add_interface()
960 	batadv_check_known_mac_addr(hard_iface->net_dev);  in batadv_hardif_add_interface()
961 	kref_get(&hard_iface->refcount);  in batadv_hardif_add_interface()
962 	list_add_tail_rcu(&hard_iface->list, &batadv_hardif_list);  in batadv_hardif_add_interface()
965 	return hard_iface;  in batadv_hardif_add_interface()
968 	kfree(hard_iface);  in batadv_hardif_add_interface()
975 static void batadv_hardif_remove_interface(struct batadv_hard_iface *hard_iface)  in batadv_hardif_remove_interface()  argument
980 	if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)  in batadv_hardif_remove_interface()
981 		batadv_hardif_disable_interface(hard_iface,  in batadv_hardif_remove_interface()
984 	if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)  in batadv_hardif_remove_interface()
987 	hard_iface->if_status = BATADV_IF_TO_BE_REMOVED;  in batadv_hardif_remove_interface()
988 	batadv_debugfs_del_hardif(hard_iface);  in batadv_hardif_remove_interface()
989 	batadv_sysfs_del_hardif(&hard_iface->hardif_obj);  in batadv_hardif_remove_interface()
990 	batadv_hardif_put(hard_iface);  in batadv_hardif_remove_interface()
1023 	struct batadv_hard_iface *hard_iface;  in batadv_hard_if_event()  local
1030 	hard_iface = batadv_hardif_get_by_netdev(net_dev);  in batadv_hard_if_event()
1031 	if (!hard_iface && (event == NETDEV_REGISTER ||  in batadv_hard_if_event()
1033 		hard_iface = batadv_hardif_add_interface(net_dev);  in batadv_hard_if_event()
1035 	if (!hard_iface)  in batadv_hard_if_event()
1040 		batadv_hardif_activate_interface(hard_iface);  in batadv_hard_if_event()
1044 		batadv_hardif_deactivate_interface(hard_iface);  in batadv_hard_if_event()
1048 		list_del_rcu(&hard_iface->list);  in batadv_hard_if_event()
1051 		batadv_hardif_remove_interface(hard_iface);  in batadv_hard_if_event()
1054 		if (hard_iface->soft_iface)  in batadv_hard_if_event()
1055 			batadv_update_min_mtu(hard_iface->soft_iface);  in batadv_hard_if_event()
1058 		if (hard_iface->if_status == BATADV_IF_NOT_IN_USE)  in batadv_hard_if_event()
1061 		batadv_check_known_mac_addr(hard_iface->net_dev);  in batadv_hard_if_event()
1063 		bat_priv = netdev_priv(hard_iface->soft_iface);  in batadv_hard_if_event()
1064 		bat_priv->algo_ops->iface.update_mac(hard_iface);  in batadv_hard_if_event()
1070 		if (hard_iface == primary_if)  in batadv_hard_if_event()
1074 		hard_iface->wifi_flags = batadv_wifi_flags_evaluate(net_dev);  in batadv_hard_if_event()
1075 		if (batadv_is_wifi_hardif(hard_iface))  in batadv_hard_if_event()
1076 			hard_iface->num_bcasts = BATADV_NUM_BCASTS_WIRELESS;  in batadv_hard_if_event()
1079 		batadv_debugfs_rename_hardif(hard_iface);  in batadv_hard_if_event()
1086 	batadv_hardif_put(hard_iface);  in batadv_hard_if_event()