1 files changed, 110 insertions, 3 deletions

diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index fb87bdc2ce9..6d51caaf8ce 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
+ * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors:
  *
  * Marek Lindner, Simon Wunderlich
  *
@@ -32,11 +32,14 @@
 #include "gateway_client.h"
 #include "vis.h"
 #include "hash.h"
+#include "bat_algo.h"
 
 
 /* List manipulations on hardif_list have to be rtnl_lock()'ed,
  * list traversals just rcu-locked */
 struct list_head hardif_list;
+char bat_routing_algo[20] = "BATMAN IV";
+static struct hlist_head bat_algo_list;
 
 unsigned char broadcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 
@@ -45,6 +48,9 @@ struct workqueue_struct *bat_event_workqueue;
 static int __init batman_init(void)
 {
 	INIT_LIST_HEAD(&hardif_list);
+	INIT_HLIST_HEAD(&bat_algo_list);
+
+	bat_iv_init();
 
 	/* the name should not be longer than 10 chars - see
 	 * http://lwn.net/Articles/23634/ */
@@ -58,8 +64,8 @@ static int __init batman_init(void)
 
 	register_netdevice_notifier(&hard_if_notifier);
 
-	pr_info("B.A.T.M.A.N. advanced %s (compatibility version %i) "
-		"loaded\n", SOURCE_VERSION, COMPAT_VERSION);
+	pr_info("B.A.T.M.A.N. advanced %s (compatibility version %i) loaded\n",
+		SOURCE_VERSION, COMPAT_VERSION);
 
 	return 0;
 }
@@ -170,9 +176,110 @@ int is_my_mac(const uint8_t *addr)
 	}
 	rcu_read_unlock();
 	return 0;
+}
+
+static struct bat_algo_ops *bat_algo_get(char *name)
+{
+	struct bat_algo_ops *bat_algo_ops = NULL, *bat_algo_ops_tmp;
+	struct hlist_node *node;
+
+	hlist_for_each_entry(bat_algo_ops_tmp, node, &bat_algo_list, list) {
+		if (strcmp(bat_algo_ops_tmp->name, name) != 0)
+			continue;
+
+		bat_algo_ops = bat_algo_ops_tmp;
+		break;
+	}
+
+	return bat_algo_ops;
+}
+
+int bat_algo_register(struct bat_algo_ops *bat_algo_ops)
+{
+	struct bat_algo_ops *bat_algo_ops_tmp;
+	int ret = -1;
+
+	bat_algo_ops_tmp = bat_algo_get(bat_algo_ops->name);
+	if (bat_algo_ops_tmp) {
+		pr_info("Trying to register already registered routing algorithm: %s\n",
+			bat_algo_ops->name);
+		goto out;
+	}
+
+	/* all algorithms must implement all ops (for now) */
+	if (!bat_algo_ops->bat_ogm_init ||
+	    !bat_algo_ops->bat_ogm_init_primary ||
+	    !bat_algo_ops->bat_ogm_update_mac ||
+	    !bat_algo_ops->bat_ogm_schedule ||
+	    !bat_algo_ops->bat_ogm_emit ||
+	    !bat_algo_ops->bat_ogm_receive) {
+		pr_info("Routing algo '%s' does not implement required ops\n",
+			bat_algo_ops->name);
+		goto out;
+	}
+
+	INIT_HLIST_NODE(&bat_algo_ops->list);
+	hlist_add_head(&bat_algo_ops->list, &bat_algo_list);
+	ret = 0;
+
+out:
+	return ret;
+}
+
+int bat_algo_select(struct bat_priv *bat_priv, char *name)
+{
+	struct bat_algo_ops *bat_algo_ops;
+	int ret = -1;
+
+	bat_algo_ops = bat_algo_get(name);
+	if (!bat_algo_ops)
+		goto out;
+
+	bat_priv->bat_algo_ops = bat_algo_ops;
+	ret = 0;
+
+out:
+	return ret;
+}
+
+int bat_algo_seq_print_text(struct seq_file *seq, void *offset)
+{
+	struct bat_algo_ops *bat_algo_ops;
+	struct hlist_node *node;
+
+	seq_printf(seq, "Available routing algorithms:\n");
+
+	hlist_for_each_entry(bat_algo_ops, node, &bat_algo_list, list) {
+		seq_printf(seq, "%s\n", bat_algo_ops->name);
+	}
+
+	return 0;
+}
+
+static int param_set_ra(const char *val, const struct kernel_param *kp)
+{
+	struct bat_algo_ops *bat_algo_ops;
 
+	bat_algo_ops = bat_algo_get((char *)val);
+	if (!bat_algo_ops) {
+		pr_err("Routing algorithm '%s' is not supported\n", val);
+		return -EINVAL;
+	}
+
+	return param_set_copystring(val, kp);
 }
 
+static const struct kernel_param_ops param_ops_ra = {
+	.set = param_set_ra,
+	.get = param_get_string,
+};
+
+static struct kparam_string __param_string_ra = {
+	.maxlen = sizeof(bat_routing_algo),
+	.string = bat_routing_algo,
+};
+
+module_param_cb(routing_algo, &param_ops_ra, &__param_string_ra, 0644);
 module_init(batman_init);
 module_exit(batman_exit);