1 files changed, 81 insertions, 0 deletions

diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
new file mode 100644
index 000000000000..9c2d54bdd2ce
--- /dev/null
+++ b/net/batman-adv/network-coding.c
@@ -0,0 +1,81 @@
+/* Copyright (C) 2012-2013 B.A.T.M.A.N. contributors:
+ *
+ * Martin Hundebøll, Jeppe Ledet-Pedersen
+ *
+ * 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
+ */
+
+#include "main.h"
+#include "network-coding.h"
+
+static void batadv_nc_worker(struct work_struct *work);
+
+/**
+ * batadv_nc_start_timer - initialise the nc periodic worker
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+static void batadv_nc_start_timer(struct batadv_priv *bat_priv)
+{
+        queue_delayed_work(batadv_event_workqueue, &bat_priv->nc.work,
+                           msecs_to_jiffies(10));
+}
+
+/**
+ * batadv_nc_init - initialise coding hash table and start house keeping
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+int batadv_nc_init(struct batadv_priv *bat_priv)
+{
+        INIT_DELAYED_WORK(&bat_priv->nc.work, batadv_nc_worker);
+        batadv_nc_start_timer(bat_priv);
+
+        return 0;
+}
+
+/**
+ * batadv_nc_init_bat_priv - initialise the nc specific bat_priv variables
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv)
+{
+        atomic_set(&bat_priv->network_coding, 1);
+}
+
+/**
+ * batadv_nc_worker - periodic task for house keeping related to network coding
+ * @work: kernel work struct
+ */
+static void batadv_nc_worker(struct work_struct *work)
+{
+        struct delayed_work *delayed_work;
+        struct batadv_priv_nc *priv_nc;
+        struct batadv_priv *bat_priv;
+
+        delayed_work = container_of(work, struct delayed_work, work);
+        priv_nc = container_of(delayed_work, struct batadv_priv_nc, work);
+        bat_priv = container_of(priv_nc, struct batadv_priv, nc);
+
+        /* Schedule a new check */
+        batadv_nc_start_timer(bat_priv);
+}
+
+/**
+ * batadv_nc_free - clean up network coding memory
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+void batadv_nc_free(struct batadv_priv *bat_priv)
+{
+        cancel_delayed_work_sync(&bat_priv->nc.work);
+}