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C:/temp/src/j2k/Net/TFTP/TFTP_header.hpp

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#ifndef __J2K__TFTP_header_hpp__
#define __J2K__TFTP_header_hpp__

#include <j2k/Fred/Standard.hpp>

// Forward declaration
class TFTP_Option;
class TFTP_OptionSaved;
class TFTP_Sender;
class TFTP_Packet;
class TFTP_Parser;
class TFTP_Timeout;
class DataFactory; 
class FileFactory; 

class UDP_Socket;
class UDP_SocketServer;
class UDP_SocketClient;

// Global TFTP object declaration
extern TFTP_Option        option;
extern TFTP_OptionSaved   savedOptions;


#define Opt_None       0x00
#define Opt_BlockSize  0x01
#define Opt_Timeout    0x02
#define Opt_FileSize   0x04

/* 
pkt.setBlockSize( 2048 );
pkt.setTimeout( 1 );
pkt.SendRRQ( "fred.h", "mode", Opt_BlkSize | Opt_TimeOut );
*/


__J2K__EXTERN_C

// List of all OpCode accepted by TFTP.
enum OpCode_t
{
  RRQ   = 1,
  WRQ   = 2,
  DATA  = 3,
  ACK   = 4,
  ERROR = 5,
  OACK  = 6
};   

// Union to change back and forth
// between short and char[2]
union short_char2_t
{
  short  v;
  char   s[2];
};

struct StringData_t {
  char*  data;
  size_t length;
};

StringData_t tftp_error_msg[8] = {
/* 0 */  { "Not defined.",         12 },
/* 1 */  { "File not found.",      15 },
/* 2 */  { "Access violation.",    17 },
/* 3 */  { "Disk full or allocation exceeded.", 33 },
/* 4 */  { "Illegal operation.",   18 },
/* 5 */  { "Unknown transfer ID.", 20 },
/* 6 */  { "File already exist.",  19 },
/* 7 */  { "No such user.",        13 }
};

const char* TFTP_errmsg[ 8 ] = {
/* 0 */  "Not defined.",
/* 1 */  "File not found.",
/* 2 */  "Access violation.",
/* 3 */  "Disk full or allocation exceeded.",
/* 4 */  "Illegal TFTP operation.",
/* 5 */  "Unknown transfer ID.",
/* 6 */  "File already exist.",
/* 7 */  "No such user.",
}; 
     
enum TFTP_errcode_t {
  TFTP_NotDefined       = 0,
  TFTP_FileNotFound     = 1,
  TFTP_AccessViolation  = 2,
  TFTP_DiskFull         = 3,   
  TFTP_IllegalOp        = 4,
  TFTP_FileAlreadyExist = 5,
  TFTP_NoSuchUser       = 6   // only use for mail (Not supported)
};

/************************************************************************** 
 ************************************************************************** 
 ***   bit 0 Init                                                       *** 
 ***   bit 1 Connected                                                  *** 
 ***   bit 2 Ack for RRQ/WRQ                                            *** 
 ***   bit 3 Reading                                                    *** 
 ***   bit 4 Writing                                                    *** 
 ***   bit 5 End of Read/Write                                          *** 
 ***   bit 6 Error                                                      *** 
 ***   bit 7 Finished, program exit signal                              *** 
 ************************************************************************** 
 ***   Disconnect means that we are not connected and that              *** 
 ***   all the variables in TFTP_Option are still initialized.          *** 
 ************************************************************************** 
 **************************************************************************/
enum TFTP_Status_t
{
  TFTP_Uninitialized    = 0x00,  // %0000,0000
  TFTP_Disconnected     = 0x01,  // %0000,0001
  TFTP_Connected        = 0x03,  // %0000,0011
  TFTP_ReadingNotAck    = 0x0B,  // %0000,1011
  TFTP_WritingNotAck    = 0x13,  // %0001,0011
  TFTP_Reading          = 0x0F,  // %0000,1111
  TFTP_Writing          = 0x17,  // %0001,0111
  TFTP_EndofReadNotAck  = 0x2B,  // %0010,1011
  TFTP_EndofWriteNotAck = 0x33,  // %0011,0011
  TFTP_EndofRead        = 0x2F,  // %0010,1111
  TFTP_EndofWrite       = 0x37,  // %0011,0111
  TFTP_Error            = 0x43,  // %0100,0011 
  TFTP_Finished         = 0x81   // %1000,0001
};

/**************************************************************************
 ************************************************************************** 
 ***   bit 0 Server                                                     *** 
 ***   bit 1 Client                                                     *** 
 ***   bit 2 Reading Command Line request                               *** 
 ***   bit 3 Writing Command Line request                               *** 
 ************************************************************************** 
 **************************************************************************/
enum TFTP_Type_t
{
  TFTP_Type_Undefined = 0x00,  // %0000
  TFTP_Server         = 0x01,  // %0001
  TFTP_ServerRead     = 0x05,  // %0101
  TFTP_ServerWrite    = 0x09,  // %1001

  TFTP_Client         = 0x02,  // %0010
  TFTP_ClientRead     = 0x06,  // %0110
  TFTP_ClientWrite    = 0x0A,  // %1010
};

__J2K__END_C

#endif

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