1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)tftp.h 8.1 (Berkeley) 6/2/93 30 */ 31 32 #ifndef _ARPA_TFTP_H 33 #define _ARPA_TFTP_H 1 34 35 /* 36 * Trivial File Transfer Protocol (IEN-133) 37 */ 38 #define SEGSIZE 512 /* data segment size */ 39 40 /* 41 * Packet types. 42 */ 43 #define RRQ 01 /* read request */ 44 #define WRQ 02 /* write request */ 45 #define DATA 03 /* data packet */ 46 #define ACK 04 /* acknowledgement */ 47 #define ERROR 05 /* error code */ 48 49 struct tftphdr { 50 short th_opcode; /* packet type */ 51 union { 52 char tu_padding[3]; /* sizeof() compat */ 53 struct { 54 union { 55 unsigned short tu_block; /* block # */ 56 short tu_code; /* error code */ 57 } __attribute__ ((__packed__)) th_u3; 58 char tu_data[0]; /* data or error string */ 59 } __attribute__ ((__packed__)) th_u2; 60 char tu_stuff[0]; /* request packet stuff */ 61 } __attribute__ ((__packed__)) th_u1; 62 } __attribute__ ((__packed__)); 63 64 #define th_block th_u1.th_u2.th_u3.tu_block 65 #define th_code th_u1.th_u2.th_u3.tu_code 66 #define th_stuff th_u1.tu_stuff 67 #define th_data th_u1.th_u2.tu_data 68 #define th_msg th_u1.th_u2.tu_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 /* arpa/tftp.h */ 83