include/arpa/tftp.h

   1 /*      $NetBSD: tftp.h,v 1.8 2003/08/07 09:44:12 agc Exp $     */
   2
   3 /*
   4  * Copyright (c) 1983, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  *      @(#)tftp.h      8.1 (Berkeley) 6/2/93
  32  */
  33
  34 #ifndef _ARPA_TFTP_H_
  35 #define _ARPA_TFTP_H_
  36
  37 /*
  38  * Trivial File Transfer Protocol (IEN-133)
  39  */
  40 #define SEGSIZE         512     /* data segment size */
  41 #define MAXSEGSIZE      65464   /* maximum negotiated data segment size */
  42
  43 #define PKTSIZE         SEGSIZE + 4
  44 #define MAXPKTSIZE      MAXSEGSIZE + 4
  45
  46 /*
  47  * Packet types.
  48  */
  49 #define RRQ     01                      /* read request */
  50 #define WRQ     02                      /* write request */
  51 #define DATA    03                      /* data packet */
  52 #define ACK     04                      /* acknowledgement */
  53 #define ERROR   05                      /* error code */
  54 #define OACK    06                      /* option acknowledgement */
  55
  56 struct  tftphdr {
  57         short   th_opcode;              /* packet type */
  58         union {
  59                 unsigned short tu_block; /* block # */
  60                 short   tu_code;        /* error code */
  61                 char    tu_stuff[1];    /* request packet stuff */
  62         } th_u;
  63         char    th_data[1];             /* data or error string */
  64 };
  65
  66 #define th_block        th_u.tu_block
  67 #define th_code         th_u.tu_code
  68 #define th_stuff        th_u.tu_stuff
  69 #define th_msg          th_data
  70
  71 /*
  72  * Error codes.
  73  */
  74 #define EUNDEF          0               /* not defined */
  75 #define ENOTFOUND       1               /* file not found */
  76 #define EACCESS         2               /* access violation */
  77 #define ENOSPACE        3               /* disk full or allocation exceeded */
  78 #define EBADOP          4               /* illegal TFTP operation */
  79 #define EBADID          5               /* unknown transfer ID */
  80 #define EEXISTS         6               /* file already exists */
  81 #define ENOUSER         7               /* no such user */
  82 #define EOPTNEG         8               /* option negotiation failed */
  83
  84 #endif /* _ARPA_TFTP_H_ */