release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/staging/batman-adv/vis.h

   1 /*
   2  * Copyright (C) 2008-2010 B.A.T.M.A.N. contributors:
   3  *
   4  * Simon Wunderlich, Marek Lindner
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of version 2 of the GNU General Public
   8  * License as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  18  * 02110-1301, USA
  19  *
  20  */
  21
  22 #ifndef _NET_BATMAN_ADV_VIS_H_
  23 #define _NET_BATMAN_ADV_VIS_H_
  24
  25 #define VIS_TIMEOUT             200     /* timeout of vis packets in seconds */
  26
  27 struct vis_info {
  28         unsigned long       first_seen;
  29         struct list_head    recv_list;
  30                             /* list of server-neighbors we received a vis-packet
  31                              * from.  we should not reply to them. */
  32         struct list_head send_list;
  33         struct kref refcount;
  34         /* this packet might be part of the vis send queue. */
  35         struct vis_packet packet;
  36         /* vis_info may follow here*/
  37 } __attribute__((packed));
  38
  39 struct vis_info_entry {
  40         uint8_t  src[ETH_ALEN];
  41         uint8_t  dest[ETH_ALEN];
  42         uint8_t  quality;       /* quality = 0 means HNA */
  43 } __attribute__((packed));
  44
  45 struct recvlist_node {
  46         struct list_head list;
  47         uint8_t mac[ETH_ALEN];
  48 };
  49
  50 int vis_seq_print_text(struct seq_file *seq, void *offset);
  51 void receive_server_sync_packet(struct bat_priv *bat_priv,
  52                                 struct vis_packet *vis_packet,
  53                                 int vis_info_len);
  54 void receive_client_update_packet(struct bat_priv *bat_priv,
  55                                   struct vis_packet *vis_packet,
  56                                   int vis_info_len);
  57 int vis_init(void);
  58 void vis_quit(void);
  59
  60 #endif /* _NET_BATMAN_ADV_VIS_H_ */