Logo Search packages:      
Sourcecode: batctl version File versions  Download package

packet.h

/*
 * Copyright (C) 2007-2009 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
 *
 */

#define ETH_P_BATMAN  0x4305  /* unofficial/not registered Ethertype */

#define BAT_PACKET    0x01
#define BAT_ICMP      0x02
#define BAT_UNICAST   0x03
#define BAT_BCAST     0x04
#define BAT_VIS       0x05

/* this file is included by batctl which needs these defines */
#define COMPAT_VERSION 8
#define DIRECTLINK 0x40
#define VIS_SERVER 0x20

/* ICMP message types */
#define ECHO_REPLY 0
#define DESTINATION_UNREACHABLE 3
#define ECHO_REQUEST 8
#define TTL_EXCEEDED 11
#define PARAMETER_PROBLEM 12

/* vis defines */
#define VIS_TYPE_SERVER_SYNC        0
#define VIS_TYPE_CLIENT_UPDATE            1

struct batman_packet {
      uint8_t  packet_type;
      uint8_t  version;  /* batman version field */
      uint8_t  flags;    /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
      uint8_t  tq;
      uint16_t seqno;
      uint8_t  orig[6];
      uint8_t  prev_sender[6];
      uint8_t  ttl;
      uint8_t  num_hna;
} __attribute__((packed));

#define BAT_PACKET_LEN sizeof(struct batman_packet)

struct icmp_packet {
      uint8_t  packet_type;
      uint8_t  version;  /* batman version field */
      uint8_t  msg_type; /* see ICMP message types above */
      uint8_t  ttl;
      uint8_t  dst[6];
      uint8_t  orig[6];
      uint16_t seqno;
      uint8_t  uid;
} __attribute__((packed));

struct unicast_packet {
      uint8_t  packet_type;
      uint8_t  version;  /* batman version field */
      uint8_t  dest[6];
      uint8_t  ttl;
} __attribute__((packed));

struct bcast_packet {
      uint8_t  packet_type;
      uint8_t  version;  /* batman version field */
      uint8_t  orig[6];
      uint16_t seqno;
} __attribute__((packed));

struct vis_packet {
      uint8_t  packet_type;
      uint8_t  version;        /* batman version field */
      uint8_t  vis_type;       /* which type of vis-participant sent this? */
      uint8_t  seqno;          /* sequence number */
      uint8_t  entries;  /* number of entries behind this struct */
      uint8_t  ttl;            /* TTL */
      uint8_t  vis_orig[6];    /* originator that informs about its
                          * neighbours */
      uint8_t  target_orig[6]; /* who should receive this packet */
      uint8_t  sender_orig[6]; /* who sent or rebroadcasted this packet */
} __attribute__((packed));

Generated by  Doxygen 1.6.0   Back to index