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
56struct 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_ */