drivers/staging/batman-adv/vis.h

   1 /*
   2  * Copyright (C) 2008-2009 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 #define VIS_TIMEOUT             200000
  23 #define VIS_FORMAT_DD_NAME      "dot_draw"
  24 #define VIS_FORMAT_JSON_NAME    "json"
  25
  26 struct vis_info {
  27         unsigned long       first_seen;
  28         struct list_head    recv_list;
  29                             /* list of server-neighbors we received a vis-packet
  30                              * from.  we should not reply to them. */
  31         struct list_head send_list;
  32         /* this packet might be part of the vis send queue. */
  33         struct vis_packet packet;
  34         /* vis_info may follow here*/
  35 } __attribute__((packed));
  36
  37 struct vis_info_entry {
  38         uint8_t  src[ETH_ALEN];
  39         uint8_t  dest[ETH_ALEN];
  40         uint8_t  quality;       /* quality = 0 means HNA */
  41 } __attribute__((packed));
  42
  43 struct recvlist_node {
  44         struct list_head list;
  45         uint8_t mac[ETH_ALEN];
  46 };
  47
  48 enum vis_formats {
  49         DOT_DRAW,
  50         JSON,
  51 };
  52
  53 extern struct hashtable_t *vis_hash;
  54 extern spinlock_t vis_hash_lock;
  55
  56 void vis_set_mode(int mode);
  57 int is_vis_server(void);
  58 void receive_server_sync_packet(struct vis_packet *vis_packet,
  59                                 int vis_info_len);
  60 void receive_client_update_packet(struct vis_packet *vis_packet,
  61                                   int vis_info_len);
  62 int vis_init(void);
  63 void vis_quit(void);