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-rw-r--r--net/batman-adv/main.c113
1 files changed, 110 insertions, 3 deletions
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index fb87bdc2ce9b..6d51caaf8cec 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);