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/*This file has been prepared for Doxygen automatic documentation generation.*/

/*! \file *********************************************************************

 *

 * \brief Basic TFTP Server for AVR32 UC3.

 *

 * - Compiler:           GNU GCC for AVR32

 * - Supported devices:  All AVR32 devices can be used.

 * - AppNote:

 *

 * \author               Atmel Corporation: http://www.atmel.com \n

 *                       Support and FAQ: http://support.atmel.no/

 *

 *****************************************************************************/

/* Copyright (c) 2007, Atmel Corporation All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are met:

 *

 * 1. Redistributions of source code must retain the above copyright notice,

 * this list of conditions and the following disclaimer.

 *

 * 2. Redistributions in binary form must reproduce the above copyright notice,

 * this list of conditions and the following disclaimer in the documentation

 * and/or other materials provided with the distribution.

 *

 * 3. The name of ATMEL may not be used to endorse or promote products derived

 * from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY ATMEL ``AS IS'' AND ANY EXPRESS OR IMPLIED

 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY AND

 * SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT,

 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef BASIC_TFTP_SERVER_H

#define BASIC_TFTP_SERVER_H

#include "portmacro.h"

/* tftp_support.h */

/*

 * File transfer modes

 */

#define TFTP_NETASCII   0              // Text files

#define TFTP_OCTET      1              // Binary files

/*

 * Errors

 */

// These initial 7 are passed across the net in "ERROR" packets.

#define TFTP_ENOTFOUND   1   /* file not found */

#define TFTP_EACCESS     2   /* access violation */

#define TFTP_ENOSPACE    3   /* disk full or allocation exceeded */

#define TFTP_EBADOP      4   /* illegal TFTP operation */

#define TFTP_EBADID      5   /* unknown transfer ID */

#define TFTP_EEXISTS     6   /* file already exists */

#define TFTP_ENOUSER     7   /* no such user */

// These extensions are return codes in our API, *never* passed on the net.

#define TFTP_TIMEOUT     8   /* operation timed out */

#define TFTP_NETERR      9   /* some sort of network error */

#define TFTP_INVALID    10   /* invalid parameter */

#define TFTP_PROTOCOL   11   /* protocol violation */

#define TFTP_TOOLARGE   12   /* file is larger than buffer */

#define TFTP_TIMEOUT_PERIOD  5          // Seconds between retries

#define TFTP_TIMEOUT_MAX    50          // Max timeouts over all blocks

#define TFTP_RETRIES_MAX     5          // retries per block before giving up

/* netdb.h */

// Internet services

struct servent {

char *s_name; /* official service name */

char **s_aliases; /* alias list */

int s_port; /* port number */

char *s_proto; /* protocol to use */

};

/* arpa/tftp.h */

/*

 * Trivial File Transfer Protocol (IEN-133)

 */

#define SEGSIZE   512   /* data segment size */

/*

 * Packet types.

 */

#define th_block  th_u.tu_block

#define th_code   th_u.tu_code

#define th_stuff  th_u.tu_stuff

#define th_msg    th_data

/*

 * Error codes.

 */

#define EUNDEF    0   /* not defined */

#define ENOTFOUND 1   /* file not found */

#define EACCESS   2   /* access violation */

#define ENOSPACE  3   /* disk full or allocation exceeded */

#define EBADOP    4   /* illegal TFTP operation */

#define EBADID    5   /* unknown transfer ID */

#define EEXISTS   6   /* file already exists */

#define ENOUSER   7   /* no such user */

#define RRQ 01      /* read request */

#define WRQ 02      /* write request */

#define DATA  03      /* data packet */

#define ACK 04      /* acknowledgement */

#define ERROR 05      /* error code */

#if __ICCAVR32__

#pragma pack(1)

#endif

struct  tftphdr {

  short th_opcode;    /* packet type */

  union {

    unsigned short  tu_block; /* block # */

    short tu_code;  /* error code */

    char  tu_stuff[1];  /* request packet stuff */

  }

#if __GNUC__

 __attribute__ ((packed))

#endif 

   th_u;

  char  th_data[1];   /* data or error string */

}

#if __GNUC__

__attribute__ ((packed))

#endif 

;

#if __ICCAVR32__

#pragma pack()

#endif

/* The function that implements the TFTP server task. */

portTASK_FUNCTION_PROTO( vBasicTFTPServer, pvParameters );

#endif