libdsm/include/bdsm/netbios_defs.h

//---------------------------------------------------------------------------
//  __________________    _________  _____            _____  .__         ._.
//  \______   \______ \  /   _____/ /     \          /  _  \ |__| ____   | |
//   |    |  _/|    |  \ \_____  \ /  \ /  \        /  /_\  \|  _/ __ \  | |
//   |    |   \|    `   \/        /    Y    \      /    |    |  \  ___/   \|
//   |______  /_______  /_______  \____|__  / /\   \____|__  |__|\___ |   __
//          \/        \/        \/        \/  )/           \/        \/   \/
//
// This file is part of libdsm. Copyright © 2014 VideoLabs SAS
//
// Author: Julien 'Lta' BALLET <contact@lta.io>
//
// This program is free software. It comes without any warranty, to the extent
// permitted by applicable law. You can redistribute it and/or modify it under
// the terms of the Do What The Fuck You Want To Public License, Version 2, as
// published by Sam Hocevar. See the COPYING file for more details.
//----------------------------------------------------------------------------

#ifndef __BDSM_NETBIOS_DEFS_H_
#define __BDSM_NETBIOS_DEFS_H_

#include <stdint.h>

#define NETBIOS_PORT_NAME     137 // UDP
#define NETBIOS_PORT_SESSION  139 // TCP

#define NETBIOS_NAME_LENGTH   15

// Netbios name types
#define NETBIOS_WORKSTATION   0x00
#define NETBIOS_MESSENGER     0x03
#define NETBIOS_FILESERVER    0x20
#define NETBIOS_DOMAINMASTER  0x1b
// http://ubiqx.org/cifs/rfc-draft/rfc1001.html#s17.2
#define NETBIOS_WILDCARD      { 32, 'C', 'K', 'A', 'A', 'A', 'A', 'A', 'A',    \
    'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', \
    'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 0 }

#define NETBIOS_FLAG_QUERY      (1 << 15)
#define NETBIOS_FLAG_TRUNCATED  (1 << 9)
#define NETBIOS_FLAG_RECURSIVE  (1 << 8)
#define NETBIOS_FLAG_BROADCAST  (1 << 4)

// Name Service Query
#define NETBIOS_OP_NAME_QUERY         0x00
// Session Service
#define NETBIOS_OP_SESSION_MSG        0x00
#define NETBIOS_OP_SESSION_REQ        0x81
#define NETBIOS_OP_SESSION_REQ_OK     0x82
#define NETBIOS_OP_SESSION_REQ_NOK    0x83
#define NETBIOS_OP_SESSION_RETARGET   0x84
#define NETBIOS_OP_SESSION_KEEPALIVE  0x85

typedef struct
{
  uint16_t                    trn_id;     // Transaction ID
  uint16_t                    flags;      // Various flags
  uint16_t                    queries;    // Number of queries in this packet
  uint16_t                    answers;    // Number of answers
  uint16_t                    ns_count;   // Number of authorities (?)
  uint16_t                    ar_count;   // Additionnal (??)
  char                        payload[];
} __attribute__((packed))   netbios_query_packet;

typedef struct
{
  uint8_t                     opcode;     // 'TYPE'
  uint8_t                     flags;      // 0-6 reserved (== 0), byte 7 is the
                                          // beginning of the length field (!!)
  uint16_t                    length;     // payload length;
  uint8_t                     payload[];
} __attribute__((packed))   netbios_session_packet;

#endif