1 /* $OpenBSD: tftp.h,v 1.8 2006/07/26 16:43:30 deraadt Exp $ */ 2 /* $NetBSD: tftp.h,v 1.3 1994/10/26 00:56:48 cgd Exp $ */ 3 4 /* 5 * Copyright (c) 1983 Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)tftp.h 5.4 (Berkeley) 4/3/91 33 */ 34 35 #ifndef _TFTP_H_ 36 #define _TFTP_H_ 37 38 /* 39 * Trivial File Transfer Protocol (IEN-133) 40 */ 41 #define SEGSIZE 512 /* data segment size */ 42 #define SEGSIZE_MIN 8 /* minimal data segment size */ 43 #define SEGSIZE_MAX 65464 /* maximal 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 ERROR 05 /* error code */ 53 #define OACK 06 /* option acknowledgement */ 54 55 struct tftphdr { 56 u_int16_t th_opcode; /* packet type */ 57 union { 58 u_int16_t tu_block; /* block # */ 59 u_int16_t 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 #define EOPTNEG 8 /* option negotiation failed */ 82 83 #endif /* !_TFTP_H_ */ 84