net: Add batman-adv meshing protocol

B.A.T.M.A.N. (better approach to mobile ad-hoc networking) is a routing
protocol for multi-hop ad-hoc mesh networks. The networks may be wired or
wireless. See http://www.open-mesh.org/ for more information and user space
tools.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 183 insertions, 0 deletions

diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
new file mode 100644
index 00000000000..d4d9926c220
--- /dev/null
+++ b/net/batman-adv/main.h
@@ -0,0 +1,183 @@
+/*
+ * Copyright (C) 2007-2010 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_MAIN_H_
+#define _NET_BATMAN_ADV_MAIN_H_
+
+/* Kernel Programming */
+#define LINUX
+
+#define DRIVER_AUTHOR "Marek Lindner <lindner_marek@yahoo.de>, " \
+		      "Simon Wunderlich <siwu@hrz.tu-chemnitz.de>"
+#define DRIVER_DESC   "B.A.T.M.A.N. advanced"
+#define DRIVER_DEVICE "batman-adv"
+
+#define SOURCE_VERSION "next"
+
+
+/* B.A.T.M.A.N. parameters */
+
+#define TQ_MAX_VALUE 255
+#define JITTER 20
+#define TTL 50			  /* Time To Live of broadcast messages */
+
+#define PURGE_TIMEOUT 200	/* purge originators after time in seconds if no
+				   * valid packet comes in -> TODO: check
+				   * influence on TQ_LOCAL_WINDOW_SIZE */
+#define LOCAL_HNA_TIMEOUT 3600 /* in seconds */
+
+#define TQ_LOCAL_WINDOW_SIZE 64	  /* sliding packet range of received originator
+				   * messages in squence numbers (should be a
+				   * multiple of our word size) */
+#define TQ_GLOBAL_WINDOW_SIZE 5
+#define TQ_LOCAL_BIDRECT_SEND_MINIMUM 1
+#define TQ_LOCAL_BIDRECT_RECV_MINIMUM 1
+#define TQ_TOTAL_BIDRECT_LIMIT 1
+
+#define NUM_WORDS (TQ_LOCAL_WINDOW_SIZE / WORD_BIT_SIZE)
+
+#define PACKBUFF_SIZE 2000
+#define LOG_BUF_LEN 8192	  /* has to be a power of 2 */
+
+#define VIS_INTERVAL 5000	/* 5 seconds */
+
+/* how much worse secondary interfaces may be to
+ * to be considered as bonding candidates */
+
+#define BONDING_TQ_THRESHOLD	50
+
+#define MAX_AGGREGATION_BYTES 512 /* should not be bigger than 512 bytes or
+				   * change the size of
+				   * forw_packet->direct_link_flags */
+#define MAX_AGGREGATION_MS 100
+
+#define SOFTIF_NEIGH_TIMEOUT 180000 /* 3 minutes */
+
+#define RESET_PROTECTION_MS 30000
+#define EXPECTED_SEQNO_RANGE	65536
+/* don't reset again within 30 seconds */
+
+#define MESH_INACTIVE 0
+#define MESH_ACTIVE 1
+#define MESH_DEACTIVATING 2
+
+#define BCAST_QUEUE_LEN		256
+#define BATMAN_QUEUE_LEN	256
+
+/*
+ * Debug Messages
+ */
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt /* Append 'batman-adv: ' before
+					     * kernel messages */
+
+#define DBG_BATMAN 1	/* all messages related to routing / flooding /
+			 * broadcasting / etc */
+#define DBG_ROUTES 2	/* route or hna added / changed / deleted */
+#define DBG_ALL 3
+
+#define LOG_BUF_LEN 8192          /* has to be a power of 2 */
+
+
+/*
+ *  Vis
+ */
+
+/* #define VIS_SUBCLUSTERS_DISABLED */
+
+/*
+ * Kernel headers
+ */
+
+#include <linux/mutex.h>	/* mutex */
+#include <linux/module.h>	/* needed by all modules */
+#include <linux/netdevice.h>	/* netdevice */
+#include <linux/etherdevice.h>  /* ethernet address classifaction */
+#include <linux/if_ether.h>	/* ethernet header */
+#include <linux/poll.h>		/* poll_table */
+#include <linux/kthread.h>	/* kernel threads */
+#include <linux/pkt_sched.h>	/* schedule types */
+#include <linux/workqueue.h>	/* workqueue */
+#include <linux/slab.h>
+#include <net/sock.h>		/* struct sock */
+#include <linux/jiffies.h>
+#include <linux/seq_file.h>
+#include "types.h"
+
+#ifndef REVISION_VERSION
+#define REVISION_VERSION_STR ""
+#else
+#define REVISION_VERSION_STR " "REVISION_VERSION
+#endif
+
+extern struct list_head if_list;
+
+extern unsigned char broadcast_addr[];
+extern struct workqueue_struct *bat_event_workqueue;
+
+int mesh_init(struct net_device *soft_iface);
+void mesh_free(struct net_device *soft_iface);
+void inc_module_count(void);
+void dec_module_count(void);
+int is_my_mac(uint8_t *addr);
+
+#ifdef CONFIG_BATMAN_ADV_DEBUG
+int debug_log(struct bat_priv *bat_priv, char *fmt, ...);
+
+#define bat_dbg(type, bat_priv, fmt, arg...)			\
+	do {							\
+		if (atomic_read(&bat_priv->log_level) & type)	\
+			debug_log(bat_priv, fmt, ## arg);	\
+	}							\
+	while (0)
+#else /* !CONFIG_BATMAN_ADV_DEBUG */
+static inline void bat_dbg(char type __attribute__((unused)),
+			   struct bat_priv *bat_priv __attribute__((unused)),
+			   char *fmt __attribute__((unused)), ...)
+{
+}
+#endif
+
+#define bat_warning(net_dev, fmt, arg...)				\
+	do {								\
+		struct net_device *_netdev = (net_dev);                 \
+		struct bat_priv *_batpriv = netdev_priv(_netdev);       \
+		bat_dbg(DBG_ALL, _batpriv, fmt, ## arg);		\
+		pr_warning("%s: " fmt, _netdev->name, ## arg);		\
+	} while (0)
+#define bat_info(net_dev, fmt, arg...)					\
+	do {								\
+		struct net_device *_netdev = (net_dev);                 \
+		struct bat_priv *_batpriv = netdev_priv(_netdev);       \
+		bat_dbg(DBG_ALL, _batpriv, fmt, ## arg);		\
+		pr_info("%s: " fmt, _netdev->name, ## arg);		\
+	} while (0)
+#define bat_err(net_dev, fmt, arg...)					\
+	do {								\
+		struct net_device *_netdev = (net_dev);                 \
+		struct bat_priv *_batpriv = netdev_priv(_netdev);       \
+		bat_dbg(DBG_ALL, _batpriv, fmt, ## arg);		\
+		pr_err("%s: " fmt, _netdev->name, ## arg);		\
+	} while (0)
+
+#endif /* _NET_BATMAN_ADV_MAIN_H_ */