1 files changed, 71 insertions, 0 deletions
diff --git a/net/batman-adv/hard-interface.h b/net/batman-adv/hard-interface.h
new file mode 100644
index 00000000..e68c5655
--- /dev/null
+++ b/net/batman-adv/hard-interface.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors:
+ *
+ * Marek Lindner, Simon Wunderlich
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ *
+ */
+
+#ifndef _NET_BATMAN_ADV_HARD_INTERFACE_H_
+#define _NET_BATMAN_ADV_HARD_INTERFACE_H_
+
+enum hard_if_state {
+	IF_NOT_IN_USE,
+	IF_TO_BE_REMOVED,
+	IF_INACTIVE,
+	IF_ACTIVE,
+	IF_TO_BE_ACTIVATED,
+	IF_I_WANT_YOU
+};
+
+extern struct notifier_block hard_if_notifier;
+
+struct hard_iface*
+hardif_get_by_netdev(const struct net_device *net_dev);
+int hardif_enable_interface(struct hard_iface *hard_iface,
+			    const char *iface_name);
+void hardif_disable_interface(struct hard_iface *hard_iface);
+void hardif_remove_interfaces(void);
+int hardif_min_mtu(struct net_device *soft_iface);
+void update_min_mtu(struct net_device *soft_iface);
+void hardif_free_rcu(struct rcu_head *rcu);
+bool is_wifi_iface(int ifindex);
+
+static inline void hardif_free_ref(struct hard_iface *hard_iface)
+{
+	if (atomic_dec_and_test(&hard_iface->refcount))
+		call_rcu(&hard_iface->rcu, hardif_free_rcu);
+}
+
+static inline struct hard_iface *primary_if_get_selected(
+						struct bat_priv *bat_priv)
+{
+	struct hard_iface *hard_iface;
+
+	rcu_read_lock();
+	hard_iface = rcu_dereference(bat_priv->primary_if);
+	if (!hard_iface)
+		goto out;
+
+	if (!atomic_inc_not_zero(&hard_iface->refcount))
+		hard_iface = NULL;
+
+out:
+	rcu_read_unlock();
+	return hard_iface;
+}
+
+#endif /* _NET_BATMAN_ADV_HARD_INTERFACE_H_ */