contrib/tcpdump/tftp.h

   1 /* @(#) $Header: /tcpdump/master/tcpdump/tftp.h,v 1.2 2008-04-11 16:47:38 gianluca Exp $ (LBL) */
   2 /*
   3  * Copyright (c) 1983, 1993
   4  *      The Regents of the University of California.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed by the University of
  17  *      California, Berkeley and its contributors.
  18  * 4. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  *      @(#)tftp.h      8.1 (Berkeley) 6/2/93
  35  */
  36
  37 #ifndef _TFTP_H_
  38 #define _TFTP_H_
  39
  40 /*
  41  * Trivial File Transfer Protocol (IEN-133)
  42  */
  43 #define SEGSIZE         512             /* data segment size */
  44
  45 /*
  46  * Packet types.
  47  */
  48 #define RRQ     01                      /* read request */
  49 #define WRQ     02                      /* write request */
  50 #define DATA    03                      /* data packet */
  51 #define ACK     04                      /* acknowledgement */
  52 #define TFTP_ERROR      05                      /* error code */
  53 #define OACK    06                      /* option acknowledgement */
  54
  55 struct  tftphdr {
  56         unsigned short  th_opcode;              /* packet type */
  57         union {
  58                 unsigned short  tu_block;       /* block # */
  59                 unsigned short  tu_code;        /* error code */
  60                 char    tu_stuff[1];    /* request packet stuff */
  61         } th_u;
  62         char    th_data[1];             /* data or error string */
  63 };
  64
  65 #define th_block        th_u.tu_block
  66 #define th_code         th_u.tu_code
  67 #define th_stuff        th_u.tu_stuff
  68 #define th_msg          th_data
  69
  70 /*
  71  * Error codes.
  72  */
  73 #define EUNDEF          0               /* not defined */
  74 #define ENOTFOUND       1               /* file not found */
  75 #define EACCESS         2               /* access violation */
  76 #define ENOSPACE        3               /* disk full or allocation exceeded */
  77 #define EBADOP          4               /* illegal TFTP operation */
  78 #define EBADID          5               /* unknown transfer ID */
  79 #define EEXISTS         6               /* file already exists */
  80 #define ENOUSER         7               /* no such user */
  81
  82 #endif /* !_TFTP_H_ */