forked from luck/tmp_suning_uos_patched
45485ad7d2
Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
228 lines
6.6 KiB
C
228 lines
6.6 KiB
C
/*
|
|
* Copyright (C) 2007-2011 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_
|
|
|
|
#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"
|
|
|
|
#ifndef SOURCE_VERSION
|
|
#define SOURCE_VERSION "2011.4.0"
|
|
#endif
|
|
|
|
/* B.A.T.M.A.N. parameters */
|
|
|
|
#define TQ_MAX_VALUE 255
|
|
#define JITTER 20
|
|
|
|
/* Time To Live of broadcast messages */
|
|
#define TTL 50
|
|
|
|
/* purge originators after time in seconds if no valid packet comes in
|
|
* -> TODO: check influence on TQ_LOCAL_WINDOW_SIZE */
|
|
#define PURGE_TIMEOUT 200
|
|
#define TT_LOCAL_TIMEOUT 3600 /* in seconds */
|
|
#define TT_CLIENT_ROAM_TIMEOUT 600
|
|
/* sliding packet range of received originator messages in sequence numbers
|
|
* (should be a multiple of our word size) */
|
|
#define TQ_LOCAL_WINDOW_SIZE 64
|
|
#define TT_REQUEST_TIMEOUT 3 /* seconds we have to keep pending tt_req */
|
|
|
|
#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 TT_OGM_APPEND_MAX 3 /* number of OGMs sent with the last tt diff */
|
|
|
|
#define ROAMING_MAX_TIME 20 /* Time in which a client can roam at most
|
|
* ROAMING_MAX_COUNT times */
|
|
#define ROAMING_MAX_COUNT 5
|
|
|
|
#define NO_FLAGS 0
|
|
|
|
#define NULL_IFINDEX 0 /* dummy ifindex used to avoid iface checks */
|
|
|
|
#define NUM_WORDS (TQ_LOCAL_WINDOW_SIZE / WORD_BIT_SIZE)
|
|
|
|
#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 be considered as bonding
|
|
* candidates */
|
|
#define BONDING_TQ_THRESHOLD 50
|
|
|
|
/* should not be bigger than 512 bytes or change the size of
|
|
* forw_packet->direct_link_flags */
|
|
#define MAX_AGGREGATION_BYTES 512
|
|
#define MAX_AGGREGATION_MS 100
|
|
|
|
#define SOFTIF_NEIGH_TIMEOUT 180000 /* 3 minutes */
|
|
|
|
/* don't reset again within 30 seconds */
|
|
#define RESET_PROTECTION_MS 30000
|
|
#define EXPECTED_SEQNO_RANGE 65536
|
|
|
|
enum mesh_state {
|
|
MESH_INACTIVE,
|
|
MESH_ACTIVE,
|
|
MESH_DEACTIVATING
|
|
};
|
|
|
|
#define BCAST_QUEUE_LEN 256
|
|
#define BATMAN_QUEUE_LEN 256
|
|
|
|
enum uev_action {
|
|
UEV_ADD = 0,
|
|
UEV_DEL,
|
|
UEV_CHANGE
|
|
};
|
|
|
|
enum uev_type {
|
|
UEV_GW = 0
|
|
};
|
|
|
|
#define GW_THRESHOLD 50
|
|
|
|
/*
|
|
* Debug Messages
|
|
*/
|
|
#ifdef pr_fmt
|
|
#undef pr_fmt
|
|
#endif
|
|
/* Append 'batman-adv: ' before kernel messages */
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
/* all messages related to routing / flooding / broadcasting / etc */
|
|
enum dbg_level {
|
|
DBG_BATMAN = 1 << 0,
|
|
DBG_ROUTES = 1 << 1, /* route added / changed / deleted */
|
|
DBG_TT = 1 << 2, /* translation table operations */
|
|
DBG_ALL = 7
|
|
};
|
|
|
|
|
|
/*
|
|
* Vis
|
|
*/
|
|
|
|
/*
|
|
* 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 classification */
|
|
#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"
|
|
|
|
extern struct list_head hardif_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(const uint8_t *addr);
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_DEBUG
|
|
int debug_log(struct bat_priv *bat_priv, const char *fmt, ...) __printf(2, 3);
|
|
|
|
#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 */
|
|
__printf(3, 4)
|
|
static inline void bat_dbg(int type __always_unused,
|
|
struct bat_priv *bat_priv __always_unused,
|
|
const char *fmt __always_unused, ...)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#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)
|
|
|
|
/**
|
|
* returns 1 if they are the same ethernet addr
|
|
*
|
|
* note: can't use compare_ether_addr() as it requires aligned memory
|
|
*/
|
|
|
|
static inline int compare_eth(const void *data1, const void *data2)
|
|
{
|
|
return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0);
|
|
}
|
|
|
|
|
|
#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
|
|
|
|
/* Returns the smallest signed integer in two's complement with the sizeof x */
|
|
#define smallest_signed_int(x) (1u << (7u + 8u * (sizeof(x) - 1u)))
|
|
|
|
/* Checks if a sequence number x is a predecessor/successor of y.
|
|
* they handle overflows/underflows and can correctly check for a
|
|
* predecessor/successor unless the variable sequence number has grown by
|
|
* more then 2**(bitwidth(x)-1)-1.
|
|
* This means that for a uint8_t with the maximum value 255, it would think:
|
|
* - when adding nothing - it is neither a predecessor nor a successor
|
|
* - before adding more than 127 to the starting value - it is a predecessor,
|
|
* - when adding 128 - it is neither a predecessor nor a successor,
|
|
* - after adding more than 127 to the starting value - it is a successor */
|
|
#define seq_before(x, y) ({typeof(x) _d1 = (x); \
|
|
typeof(y) _d2 = (y); \
|
|
typeof(x) _dummy = (_d1 - _d2); \
|
|
(void) (&_d1 == &_d2); \
|
|
_dummy > smallest_signed_int(_dummy); })
|
|
#define seq_after(x, y) seq_before(y, x)
|
|
|
|
#endif /* _NET_BATMAN_ADV_MAIN_H_ */
|