[mirror_edk2.git] / MdeModulePkg / Universal / Network / UefiPxeBcDxe / PxeBcMtftp.c

/** @file\r
  PxeBc MTFTP functions.\r
  \r
Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include "PxeBcImpl.h"\r
\r
CHAR8 *mMtftpOptions[PXE_MTFTP_OPTION_MAXIMUM_INDEX] = {\r
  "blksize",\r
  "timeout",\r
  "tsize",\r
  "multicast"\r
};\r
\r
\r
/**\r
  This is a callback function when packets received/transmitted in Mtftp driver.\r
\r
  A callback function that is provided by the caller to intercept               \r
  the EFI_MTFTP4_OPCODE_DATA or EFI_MTFTP4_OPCODE_DATA8 packets processed in the\r
  EFI_MTFTP4_PROTOCOL.ReadFile() function, and alternatively to intercept       \r
  EFI_MTFTP4_OPCODE_OACK or EFI_MTFTP4_OPCODE_ERROR packets during a call to    \r
  EFI_MTFTP4_PROTOCOL.ReadFile(), WriteFile() or ReadDirectory().\r
   \r
  @param  This           Pointer to Mtftp protocol instance\r
  @param  Token          Pointer to Mtftp token\r
  @param  PacketLen      Length of Mtftp packet\r
  @param  Packet         Pointer to Mtftp packet\r
\r
  @retval EFI_SUCCESS    Operation sucess\r
  @retval EFI_ABORTED    Abort transfer process \r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PxeBcCheckPacket (\r
  IN EFI_MTFTP4_PROTOCOL        *This,\r
  IN EFI_MTFTP4_TOKEN           *Token,\r
  IN UINT16                     PacketLen,\r
  IN EFI_MTFTP4_PACKET          *Packet\r
  )\r
{\r
  PXEBC_PRIVATE_DATA                  *Private;\r
  EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *Callback;\r
  EFI_STATUS                          Status;\r
\r
  Private   = (PXEBC_PRIVATE_DATA *) Token->Context;\r
  Callback  = Private->PxeBcCallback;\r
  Status    = EFI_SUCCESS;\r
\r
  if (Packet->OpCode == EFI_MTFTP4_OPCODE_ERROR) {\r
    Private->Mode.TftpErrorReceived = TRUE;\r
    Private->Mode.TftpError.ErrorCode = (UINT8) Packet->Error.ErrorCode;\r
    AsciiStrnCpy (Private->Mode.TftpError.ErrorString, (CHAR8 *) Packet->Error.ErrorMessage, PXE_MTFTP_ERROR_STRING_LENGTH);\r
    Private->Mode.TftpError.ErrorString[PXE_MTFTP_ERROR_STRING_LENGTH - 1] = '\0';\r
  }\r
\r
  if (Callback != NULL) {\r
\r
    Status = Callback->Callback (\r
                        Callback,\r
                        Private->Function,\r
                        TRUE,\r
                        PacketLen,\r
                        (EFI_PXE_BASE_CODE_PACKET *) Packet\r
                        );\r
    if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r
\r
      Status = EFI_ABORTED;\r
    } else {\r
\r
      Status = EFI_SUCCESS;\r
    }\r
  }\r
\r
  return Status;\r
}\r
\r
\r
/**\r
  This function is to get size of a file by Tftp.\r
  \r
  @param  Private        Pointer to PxeBc private data\r
  @param  Config         Pointer to Mtftp configuration data\r
  @param  Filename       Pointer to file name\r
  @param  BlockSize      Pointer to block size\r
  @param  BufferSize     Pointer to buffer size\r
\r
  @retval EFI_SUCCESS        Get the size of file success\r
  @retval EFI_NOT_FOUND      Parse the tftp ptions failed.\r
  @retval EFI_DEVICE_ERROR   The network device encountered an error during this operation.\r
  @retval Other              Has not get the size of the file.\r
  \r
**/\r
EFI_STATUS\r
PxeBcTftpGetFileSize (\r
  IN PXEBC_PRIVATE_DATA         *Private,\r
  IN EFI_MTFTP4_CONFIG_DATA     *Config,\r
  IN UINT8                      *Filename,\r
  IN UINTN                      *BlockSize,\r
  IN OUT UINT64                 *BufferSize\r
  )\r
{\r
  EFI_MTFTP4_PROTOCOL *Mtftp4;\r
  EFI_MTFTP4_OPTION   ReqOpt[2];\r
  EFI_MTFTP4_PACKET   *Packet;\r
  EFI_MTFTP4_OPTION   *Option;\r
  UINT32              PktLen;\r
  UINT8               OptBuf[128];\r
  UINT32              OptCnt;\r
  EFI_STATUS          Status;\r
\r
  *BufferSize               = 0;\r
  Status                    = EFI_DEVICE_ERROR;\r
  Mtftp4                    = Private->Mtftp4;\r
  Packet                    = NULL;\r
  Option                    = NULL;\r
  PktLen                    = 0;\r
  OptCnt                    = 1;\r
  Config->InitialServerPort = PXEBC_BS_DOWNLOAD_PORT;\r
\r
  Status = Mtftp4->Configure (Mtftp4, Config);\r
  if (EFI_ERROR (Status)) {\r
\r
    return Status;\r
  }\r
\r
  ReqOpt[0].OptionStr = (UINT8*)mMtftpOptions[PXE_MTFTP_OPTION_TSIZE_INDEX];\r
  UtoA10 (0, (CHAR8 *) OptBuf);\r
  ReqOpt[0].ValueStr = OptBuf;\r
\r
  if (BlockSize != NULL) {\r
    ReqOpt[1].OptionStr = (UINT8*)mMtftpOptions[PXE_MTFTP_OPTION_BLKSIZE_INDEX];\r
    ReqOpt[1].ValueStr  = ReqOpt[0].ValueStr + AsciiStrLen ((CHAR8 *) ReqOpt[0].ValueStr) + 1;\r
    UtoA10 (*BlockSize, (CHAR8 *) ReqOpt[1].ValueStr);\r
    OptCnt++;\r
  }\r
\r
  Status = Mtftp4->GetInfo (\r
                    Mtftp4,\r
                    NULL,\r
                    Filename,\r
                    NULL,\r
                    (UINT8) OptCnt,\r
                    ReqOpt,\r
                    &PktLen,\r
                    &Packet\r
                    );\r
\r
  if (EFI_ERROR (Status)) {\r
    if (Status == EFI_TFTP_ERROR) {\r
      Private->Mode.TftpErrorReceived = TRUE;\r
      Private->Mode.TftpError.ErrorCode = (UINT8) Packet->Error.ErrorCode;\r
      AsciiStrnCpy (\r
        Private->Mode.TftpError.ErrorString, \r
        (CHAR8 *) Packet->Error.ErrorMessage, \r
        PXE_MTFTP_ERROR_STRING_LENGTH\r
        );\r
      Private->Mode.TftpError.ErrorString[PXE_MTFTP_ERROR_STRING_LENGTH - 1] = '\0';\r
    }\r
    goto ON_ERROR;\r
  }\r
\r
  OptCnt = 0;\r
\r
  Status = Mtftp4->ParseOptions (\r
                    Mtftp4,\r
                    PktLen,\r
                    Packet,\r
                    (UINT32 *) &OptCnt,\r
                    &Option\r
                    );\r
\r
  if (EFI_ERROR (Status)) {\r
\r
    goto ON_ERROR;\r
  }\r
\r
  Status = EFI_NOT_FOUND;\r
\r
  while (OptCnt != 0) {\r
\r
    if (AsciiStrnCmp ((CHAR8 *) Option[OptCnt - 1].OptionStr, "tsize", 5) == 0) {\r
\r
      *BufferSize = AtoU64 (Option[OptCnt - 1].ValueStr);\r
      Status      = EFI_SUCCESS;\r
    }\r
\r
    OptCnt--;\r
  }\r
\r
  FreePool (Option);\r
\r
ON_ERROR:\r
\r
  if (Packet != NULL) {\r
    FreePool (Packet);\r
  }\r
\r
  Mtftp4->Configure (Mtftp4, NULL);\r
\r
  return Status;\r
}\r
\r
\r
/**\r
  This function is to get data of a file by Tftp.\r
\r
  @param  Private        Pointer to PxeBc private data\r
  @param  Config         Pointer to Mtftp configuration data\r
  @param  Filename       Pointer to file name\r
  @param  BlockSize      Pointer to block size\r
  @param  BufferPtr      Pointer to buffer\r
  @param  BufferSize     Pointer to buffer size\r
  @param  DontUseBuffer  Indicate whether with a receive buffer\r
\r
  @retval EFI_SUCCESS        Read the data success from the special file.\r
  @retval EFI_DEVICE_ERROR   The network device encountered an error during this operation.\r
  @retval other              Read data from file failed.\r
  \r
**/\r
EFI_STATUS\r
PxeBcTftpReadFile (\r
  IN PXEBC_PRIVATE_DATA         *Private,\r
  IN EFI_MTFTP4_CONFIG_DATA     *Config,\r
  IN UINT8                      *Filename,\r
  IN UINTN                      *BlockSize,\r
  IN UINT8                      *BufferPtr,\r
  IN OUT UINT64                 *BufferSize,\r
  IN BOOLEAN                    DontUseBuffer\r
  )\r
{\r
  EFI_MTFTP4_PROTOCOL *Mtftp4;\r
  EFI_MTFTP4_TOKEN    Token;\r
  EFI_MTFTP4_OPTION   ReqOpt[1];\r
  UINT32              OptCnt;\r
  UINT8               OptBuf[128];\r
  EFI_STATUS          Status;\r
\r
  Status                    = EFI_DEVICE_ERROR;\r
  Mtftp4                    = Private->Mtftp4;\r
  OptCnt                    = 0;\r
  Config->InitialServerPort = PXEBC_BS_DOWNLOAD_PORT;\r
\r
  Status = Mtftp4->Configure (Mtftp4, Config);\r
  if (EFI_ERROR (Status)) {\r
\r
    return Status;\r
  }\r
\r
  if (BlockSize != NULL) {\r
\r
    ReqOpt[0].OptionStr = (UINT8*) mMtftpOptions[PXE_MTFTP_OPTION_BLKSIZE_INDEX];\r
    ReqOpt[0].ValueStr  = OptBuf;\r
    UtoA10 (*BlockSize, (CHAR8 *) ReqOpt[0].ValueStr);\r
    OptCnt++;\r
  }\r
\r
  Token.Event         = NULL;\r
  Token.OverrideData  = NULL;\r
  Token.Filename      = Filename;\r
  Token.ModeStr       = NULL;\r
  Token.OptionCount   = OptCnt;\r
  Token.OptionList    = ReqOpt;\r
  Token.Context       = Private;\r
\r
  if (DontUseBuffer) {\r
    Token.BufferSize  = 0;\r
    Token.Buffer      = NULL;\r
  } else {\r
    Token.BufferSize  = *BufferSize;\r
    Token.Buffer      = BufferPtr;\r
  }\r
\r
  Token.CheckPacket     = PxeBcCheckPacket;\r
  Token.TimeoutCallback = NULL;\r
  Token.PacketNeeded    = NULL;\r
\r
  Status = Mtftp4->ReadFile (Mtftp4, &Token);\r
\r
  *BufferSize = Token.BufferSize;\r
\r
  Mtftp4->Configure (Mtftp4, NULL);\r
\r
  return Status;\r
}\r
\r
\r
/**\r
  This function is put data of a file by Tftp.\r
\r
  @param  Private        Pointer to PxeBc private data\r
  @param  Config         Pointer to Mtftp configuration data\r
  @param  Filename       Pointer to file name\r
  @param  Overwrite      Indicate whether with overwrite attribute\r
  @param  BlockSize      Pointer to block size\r
  @param  BufferPtr      Pointer to buffer\r
  @param  BufferSize     Pointer to buffer size\r
\r
  @retval EFI_SUCCESS        Write the data success into the special file.\r
  @retval EFI_DEVICE_ERROR   The network device encountered an error during this operation.\r
  @retval other              Write data into file failed.\r
  \r
**/\r
EFI_STATUS\r
PxeBcTftpWriteFile (\r
  IN PXEBC_PRIVATE_DATA         *Private,\r
  IN EFI_MTFTP4_CONFIG_DATA     *Config,\r
  IN UINT8                      *Filename,\r
  IN BOOLEAN                    Overwrite,\r
  IN UINTN                      *BlockSize,\r
  IN UINT8                      *BufferPtr,\r
  IN OUT UINT64                 *BufferSize\r
  )\r
{\r
  EFI_MTFTP4_PROTOCOL *Mtftp4;\r
  EFI_MTFTP4_TOKEN    Token;\r
  EFI_MTFTP4_OPTION   ReqOpt[1];\r
  UINT32              OptCnt;\r
  UINT8               OptBuf[128];\r
  EFI_STATUS          Status;\r
\r
  Status                    = EFI_DEVICE_ERROR;\r
  Mtftp4                    = Private->Mtftp4;\r
  OptCnt                    = 0;\r
  Config->InitialServerPort = PXEBC_BS_DOWNLOAD_PORT;\r
\r
  Status  = Mtftp4->Configure (Mtftp4, Config);\r
  if (EFI_ERROR (Status)) {\r
\r
    return Status;\r
  }\r
\r
  if (BlockSize != NULL) {\r
\r
    ReqOpt[0].OptionStr = (UINT8*) mMtftpOptions[PXE_MTFTP_OPTION_BLKSIZE_INDEX];\r
    ReqOpt[0].ValueStr  = OptBuf;\r
    UtoA10 (*BlockSize, (CHAR8 *) ReqOpt[0].ValueStr);\r
    OptCnt++;\r
  }\r
\r
  Token.Event           = NULL;\r
  Token.OverrideData    = NULL;\r
  Token.Filename        = Filename;\r
  Token.ModeStr         = NULL;\r
  Token.OptionCount     = OptCnt;\r
  Token.OptionList      = ReqOpt;\r
  Token.BufferSize      = *BufferSize;\r
  Token.Buffer          = BufferPtr;\r
  Token.CheckPacket     = PxeBcCheckPacket;\r
  Token.TimeoutCallback = NULL;\r
  Token.PacketNeeded    = NULL;\r
\r
  Status      = Mtftp4->WriteFile (Mtftp4, &Token);\r
  *BufferSize = Token.BufferSize;\r
\r
  Mtftp4->Configure (Mtftp4, NULL);\r
\r
  return Status;\r
}\r
\r
\r
/**\r
  This function is to get data(file) from a directory(may be a server) by Tftp.\r
\r
  @param  Private        Pointer to PxeBc private data.\r
  @param  Config         Pointer to Mtftp configuration data.\r
  @param  Filename       Pointer to file name.\r
  @param  BlockSize      Pointer to block size.\r
  @param  BufferPtr      Pointer to buffer.\r
  @param  BufferSize     Pointer to buffer size.\r
  @param  DontUseBuffer  Indicate whether with a receive buffer.\r
\r
  @retval EFI_SUCCES         Get the data from the file included in directory success. \r
  @retval EFI_DEVICE_ERROR   The network device encountered an error during this operation.\r
  @retval other              Operation failed.\r
  \r
**/\r
EFI_STATUS\r
PxeBcTftpReadDirectory (\r
  IN PXEBC_PRIVATE_DATA            *Private,\r
  IN EFI_MTFTP4_CONFIG_DATA        *Config,\r
  IN UINT8                         *Filename,\r
  IN UINTN                         *BlockSize,\r
  IN UINT8                         *BufferPtr,\r
  IN OUT UINT64                    *BufferSize,\r
  IN BOOLEAN                       DontUseBuffer\r
  )\r
{\r
  EFI_MTFTP4_PROTOCOL *Mtftp4;\r
  EFI_MTFTP4_TOKEN    Token;\r
  EFI_MTFTP4_OPTION   ReqOpt[1];\r
  UINT32              OptCnt;\r
  UINT8               OptBuf[128];\r
  EFI_STATUS          Status;\r
\r
  Status                    = EFI_DEVICE_ERROR;\r
  Mtftp4                    = Private->Mtftp4;\r
  OptCnt                    = 0;\r
  Config->InitialServerPort = PXEBC_BS_DOWNLOAD_PORT;\r
\r
  Status = Mtftp4->Configure (Mtftp4, Config);\r
  if (EFI_ERROR (Status)) {\r
\r
    return Status;\r
  }\r
\r
  if (BlockSize != NULL) {\r
\r
    ReqOpt[0].OptionStr = (UINT8*) mMtftpOptions[PXE_MTFTP_OPTION_BLKSIZE_INDEX];\r
    ReqOpt[0].ValueStr  = OptBuf;\r
    UtoA10 (*BlockSize, (CHAR8 *) ReqOpt[0].ValueStr);\r
    OptCnt++;\r
  }\r
\r
  Token.Event         = NULL;\r
  Token.OverrideData  = NULL;\r
  Token.Filename      = Filename;\r
  Token.ModeStr       = NULL;\r
  Token.OptionCount   = OptCnt;\r
  Token.OptionList    = ReqOpt;\r
  Token.Context       = Private;\r
\r
  if (DontUseBuffer) {\r
    Token.BufferSize  = 0;\r
    Token.Buffer      = NULL;\r
  } else {\r
    Token.BufferSize  = *BufferSize;\r
    Token.Buffer      = BufferPtr;\r
  }\r
\r
  Token.CheckPacket     = PxeBcCheckPacket;\r
  Token.TimeoutCallback = NULL;\r
  Token.PacketNeeded    = NULL;\r
\r
  Status = Mtftp4->ReadDirectory (Mtftp4, &Token);\r
\r
  *BufferSize = Token.BufferSize;\r
\r
  Mtftp4->Configure (Mtftp4, NULL);\r
\r
  return Status;\r
}\r
\r
Commit	Line	Data
dc361cc5	1	/** @file\r
f737cfb9	2	PxeBc MTFTP functions.\r
f737cfb9	3	\r
35d74819	4	Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>\r
e5eed7d3	5	This program and the accompanying materials\r
dc361cc5	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. The full text of the license may be found at\r
	8	http://opensource.org/licenses/bsd-license.php\r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	12	\r
dc361cc5	13	**/\r
	14	\r
	15	#include "PxeBcImpl.h"\r
	16	\r
0adb8a3c	17	CHAR8 *mMtftpOptions[PXE_MTFTP_OPTION_MAXIMUM_INDEX] = {\r
dc361cc5	18	"blksize",\r
	19	"timeout",\r
	20	"tsize",\r
	21	"multicast"\r
	22	};\r
	23	\r
	24	\r
	25	/**\r
	26	This is a callback function when packets received/transmitted in Mtftp driver.\r
	27	\r
f737cfb9	28	A callback function that is provided by the caller to intercept \r
	29	the EFI_MTFTP4_OPCODE_DATA or EFI_MTFTP4_OPCODE_DATA8 packets processed in the\r
	30	EFI_MTFTP4_PROTOCOL.ReadFile() function, and alternatively to intercept \r
	31	EFI_MTFTP4_OPCODE_OACK or EFI_MTFTP4_OPCODE_ERROR packets during a call to \r
	32	EFI_MTFTP4_PROTOCOL.ReadFile(), WriteFile() or ReadDirectory().\r
	33	\r
dc361cc5	34	@param This Pointer to Mtftp protocol instance\r
	35	@param Token Pointer to Mtftp token\r
	36	@param PacketLen Length of Mtftp packet\r
	37	@param Packet Pointer to Mtftp packet\r
	38	\r
f737cfb9	39	@retval EFI_SUCCESS Operation sucess\r
f737cfb9	40	@retval EFI_ABORTED Abort transfer process \r
dc361cc5	41	\r
	42	**/\r
	43	EFI_STATUS\r
6d3ea23f	44	EFIAPI\r
dc361cc5	45	PxeBcCheckPacket (\r
	46	IN EFI_MTFTP4_PROTOCOL *This,\r
	47	IN EFI_MTFTP4_TOKEN *Token,\r
	48	IN UINT16 PacketLen,\r
	49	IN EFI_MTFTP4_PACKET *Packet\r
	50	)\r
	51	{\r
	52	PXEBC_PRIVATE_DATA *Private;\r
	53	EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *Callback;\r
	54	EFI_STATUS Status;\r
	55	\r
ea886bef	56	Private = (PXEBC_PRIVATE_DATA *) Token->Context;\r
dc361cc5	57	Callback = Private->PxeBcCallback;\r
	58	Status = EFI_SUCCESS;\r
	59	\r
982a9eae	60	if (Packet->OpCode == EFI_MTFTP4_OPCODE_ERROR) {\r
	61	Private->Mode.TftpErrorReceived = TRUE;\r
	62	Private->Mode.TftpError.ErrorCode = (UINT8) Packet->Error.ErrorCode;\r
a361d391 QS	63	AsciiStrnCpy (Private->Mode.TftpError.ErrorString, (CHAR8 *) Packet->Error.ErrorMessage, PXE_MTFTP_ERROR_STRING_LENGTH);\r
a361d391 QS	64	Private->Mode.TftpError.ErrorString[PXE_MTFTP_ERROR_STRING_LENGTH - 1] = '\0';\r
982a9eae	65	}\r
982a9eae	66	\r
dc361cc5	67	if (Callback != NULL) {\r
	68	\r
	69	Status = Callback->Callback (\r
	70	Callback,\r
	71	Private->Function,\r
	72	TRUE,\r
	73	PacketLen,\r
	74	(EFI_PXE_BASE_CODE_PACKET *) Packet\r
	75	);\r
	76	if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r
	77	\r
	78	Status = EFI_ABORTED;\r
	79	} else {\r
	80	\r
	81	Status = EFI_SUCCESS;\r
	82	}\r
	83	}\r
	84	\r
	85	return Status;\r
	86	}\r
	87	\r
	88	\r
	89	/**\r
	90	This function is to get size of a file by Tftp.\r
f737cfb9	91	\r
dc361cc5	92	@param Private Pointer to PxeBc private data\r
	93	@param Config Pointer to Mtftp configuration data\r
	94	@param Filename Pointer to file name\r
	95	@param BlockSize Pointer to block size\r
	96	@param BufferSize Pointer to buffer size\r
	97	\r
f737cfb9	98	@retval EFI_SUCCESS Get the size of file success\r
	99	@retval EFI_NOT_FOUND Parse the tftp ptions failed.\r
	100	@retval EFI_DEVICE_ERROR The network device encountered an error during this operation.\r
	101	@retval Other Has not get the size of the file.\r
	102	\r
dc361cc5	103	**/\r
	104	EFI_STATUS\r
	105	PxeBcTftpGetFileSize (\r
	106	IN PXEBC_PRIVATE_DATA *Private,\r
	107	IN EFI_MTFTP4_CONFIG_DATA *Config,\r
	108	IN UINT8 *Filename,\r
	109	IN UINTN *BlockSize,\r
	110	IN OUT UINT64 *BufferSize\r
	111	)\r
	112	{\r
	113	EFI_MTFTP4_PROTOCOL *Mtftp4;\r
	114	EFI_MTFTP4_OPTION ReqOpt[2];\r
	115	EFI_MTFTP4_PACKET *Packet;\r
	116	EFI_MTFTP4_OPTION *Option;\r
	117	UINT32 PktLen;\r
	118	UINT8 OptBuf[128];\r
	119	UINT32 OptCnt;\r
	120	EFI_STATUS Status;\r
	121	\r
	122	*BufferSize = 0;\r
	123	Status = EFI_DEVICE_ERROR;\r
	124	Mtftp4 = Private->Mtftp4;\r
	125	Packet = NULL;\r
	126	Option = NULL;\r
	127	PktLen = 0;\r
	128	OptCnt = 1;\r
	129	Config->InitialServerPort = PXEBC_BS_DOWNLOAD_PORT;\r
	130	\r
	131	Status = Mtftp4->Configure (Mtftp4, Config);\r
	132	if (EFI_ERROR (Status)) {\r
	133	\r
	134	return Status;\r
	135	}\r
	136	\r
9c87ebc0	137	ReqOpt[0].OptionStr = (UINT8*)mMtftpOptions[PXE_MTFTP_OPTION_TSIZE_INDEX];\r
dc361cc5	138	UtoA10 (0, (CHAR8 *) OptBuf);\r
	139	ReqOpt[0].ValueStr = OptBuf;\r
	140	\r
	141	if (BlockSize != NULL) {\r
9c87ebc0	142	ReqOpt[1].OptionStr = (UINT8*)mMtftpOptions[PXE_MTFTP_OPTION_BLKSIZE_INDEX];\r
dc361cc5	143	ReqOpt[1].ValueStr = ReqOpt[0].ValueStr + AsciiStrLen ((CHAR8 *) ReqOpt[0].ValueStr) + 1;\r
	144	UtoA10 (BlockSize, (CHAR8 ) ReqOpt[1].ValueStr);\r
	145	OptCnt++;\r
	146	}\r
	147	\r
	148	Status = Mtftp4->GetInfo (\r
	149	Mtftp4,\r
35d74819	150	NULL,\r
dc361cc5	151	Filename,\r
	152	NULL,\r
	153	(UINT8) OptCnt,\r
	154	ReqOpt,\r
	155	&PktLen,\r
	156	&Packet\r
	157	);\r
	158	\r
	159	if (EFI_ERROR (Status)) {\r
169a3461	160	if (Status == EFI_TFTP_ERROR) {\r
982a9eae	161	Private->Mode.TftpErrorReceived = TRUE;\r
982a9eae	162	Private->Mode.TftpError.ErrorCode = (UINT8) Packet->Error.ErrorCode;\r
f737cfb9	163	AsciiStrnCpy (\r
	164	Private->Mode.TftpError.ErrorString, \r
	165	(CHAR8 *) Packet->Error.ErrorMessage, \r
a361d391	166	PXE_MTFTP_ERROR_STRING_LENGTH\r
f737cfb9	167	);\r
a361d391	168	Private->Mode.TftpError.ErrorString[PXE_MTFTP_ERROR_STRING_LENGTH - 1] = '\0';\r
982a9eae	169	}\r
dc361cc5	170	goto ON_ERROR;\r
	171	}\r
	172	\r
	173	OptCnt = 0;\r
	174	\r
	175	Status = Mtftp4->ParseOptions (\r
	176	Mtftp4,\r
	177	PktLen,\r
	178	Packet,\r
	179	(UINT32 *) &OptCnt,\r
	180	&Option\r
	181	);\r
	182	\r
	183	if (EFI_ERROR (Status)) {\r
	184	\r
	185	goto ON_ERROR;\r
	186	}\r
	187	\r
	188	Status = EFI_NOT_FOUND;\r
	189	\r
	190	while (OptCnt != 0) {\r
	191	\r
	192	if (AsciiStrnCmp ((CHAR8 *) Option[OptCnt - 1].OptionStr, "tsize", 5) == 0) {\r
	193	\r
	194	*BufferSize = AtoU64 (Option[OptCnt - 1].ValueStr);\r
	195	Status = EFI_SUCCESS;\r
	196	}\r
	197	\r
	198	OptCnt--;\r
	199	}\r
	200	\r
766c7483	201	FreePool (Option);\r
dc361cc5	202	\r
	203	ON_ERROR:\r
	204	\r
	205	if (Packet != NULL) {\r
766c7483	206	FreePool (Packet);\r
dc361cc5	207	}\r
	208	\r
	209	Mtftp4->Configure (Mtftp4, NULL);\r
	210	\r
	211	return Status;\r
	212	}\r
	213	\r
	214	\r
	215	/**\r
	216	This function is to get data of a file by Tftp.\r
	217	\r
	218	@param Private Pointer to PxeBc private data\r
	219	@param Config Pointer to Mtftp configuration data\r
	220	@param Filename Pointer to file name\r
	221	@param BlockSize Pointer to block size\r
	222	@param BufferPtr Pointer to buffer\r
	223	@param BufferSize Pointer to buffer size\r
	224	@param DontUseBuffer Indicate whether with a receive buffer\r
	225	\r
f737cfb9	226	@retval EFI_SUCCESS Read the data success from the special file.\r
	227	@retval EFI_DEVICE_ERROR The network device encountered an error during this operation.\r
	228	@retval other Read data from file failed.\r
	229	\r
dc361cc5	230	**/\r
	231	EFI_STATUS\r
	232	PxeBcTftpReadFile (\r
	233	IN PXEBC_PRIVATE_DATA *Private,\r
	234	IN EFI_MTFTP4_CONFIG_DATA *Config,\r
	235	IN UINT8 *Filename,\r
	236	IN UINTN *BlockSize,\r
	237	IN UINT8 *BufferPtr,\r
	238	IN OUT UINT64 *BufferSize,\r
	239	IN BOOLEAN DontUseBuffer\r
	240	)\r
	241	{\r
	242	EFI_MTFTP4_PROTOCOL *Mtftp4;\r
	243	EFI_MTFTP4_TOKEN Token;\r
	244	EFI_MTFTP4_OPTION ReqOpt[1];\r
	245	UINT32 OptCnt;\r
	246	UINT8 OptBuf[128];\r
	247	EFI_STATUS Status;\r
	248	\r
	249	Status = EFI_DEVICE_ERROR;\r
	250	Mtftp4 = Private->Mtftp4;\r
	251	OptCnt = 0;\r
	252	Config->InitialServerPort = PXEBC_BS_DOWNLOAD_PORT;\r
	253	\r
	254	Status = Mtftp4->Configure (Mtftp4, Config);\r
	255	if (EFI_ERROR (Status)) {\r
	256	\r
	257	return Status;\r
	258	}\r
	259	\r
	260	if (BlockSize != NULL) {\r
	261	\r
8792362f	262	ReqOpt[0].OptionStr = (UINT8*) mMtftpOptions[PXE_MTFTP_OPTION_BLKSIZE_INDEX];\r
dc361cc5	263	ReqOpt[0].ValueStr = OptBuf;\r
	264	UtoA10 (BlockSize, (CHAR8 ) ReqOpt[0].ValueStr);\r
	265	OptCnt++;\r
	266	}\r
	267	\r
	268	Token.Event = NULL;\r
	269	Token.OverrideData = NULL;\r
	270	Token.Filename = Filename;\r
	271	Token.ModeStr = NULL;\r
	272	Token.OptionCount = OptCnt;\r
	273	Token.OptionList = ReqOpt;\r
ea886bef	274	Token.Context = Private;\r
dc361cc5	275	\r
	276	if (DontUseBuffer) {\r
	277	Token.BufferSize = 0;\r
	278	Token.Buffer = NULL;\r
	279	} else {\r
	280	Token.BufferSize = *BufferSize;\r
	281	Token.Buffer = BufferPtr;\r
	282	}\r
	283	\r
	284	Token.CheckPacket = PxeBcCheckPacket;\r
	285	Token.TimeoutCallback = NULL;\r
	286	Token.PacketNeeded = NULL;\r
	287	\r
	288	Status = Mtftp4->ReadFile (Mtftp4, &Token);\r
	289	\r
	290	*BufferSize = Token.BufferSize;\r
	291	\r
	292	Mtftp4->Configure (Mtftp4, NULL);\r
	293	\r
	294	return Status;\r
	295	}\r
	296	\r
	297	\r
	298	/**\r
	299	This function is put data of a file by Tftp.\r
	300	\r
	301	@param Private Pointer to PxeBc private data\r
	302	@param Config Pointer to Mtftp configuration data\r
	303	@param Filename Pointer to file name\r
	304	@param Overwrite Indicate whether with overwrite attribute\r
	305	@param BlockSize Pointer to block size\r
	306	@param BufferPtr Pointer to buffer\r
	307	@param BufferSize Pointer to buffer size\r
	308	\r
f737cfb9	309	@retval EFI_SUCCESS Write the data success into the special file.\r
	310	@retval EFI_DEVICE_ERROR The network device encountered an error during this operation.\r
	311	@retval other Write data into file failed.\r
	312	\r
dc361cc5	313	**/\r
	314	EFI_STATUS\r
	315	PxeBcTftpWriteFile (\r
	316	IN PXEBC_PRIVATE_DATA *Private,\r
	317	IN EFI_MTFTP4_CONFIG_DATA *Config,\r
	318	IN UINT8 *Filename,\r
	319	IN BOOLEAN Overwrite,\r
	320	IN UINTN *BlockSize,\r
	321	IN UINT8 *BufferPtr,\r
	322	IN OUT UINT64 *BufferSize\r
	323	)\r
	324	{\r
	325	EFI_MTFTP4_PROTOCOL *Mtftp4;\r
	326	EFI_MTFTP4_TOKEN Token;\r
	327	EFI_MTFTP4_OPTION ReqOpt[1];\r
	328	UINT32 OptCnt;\r
	329	UINT8 OptBuf[128];\r
	330	EFI_STATUS Status;\r
	331	\r
	332	Status = EFI_DEVICE_ERROR;\r
	333	Mtftp4 = Private->Mtftp4;\r
	334	OptCnt = 0;\r
	335	Config->InitialServerPort = PXEBC_BS_DOWNLOAD_PORT;\r
	336	\r
	337	Status = Mtftp4->Configure (Mtftp4, Config);\r
	338	if (EFI_ERROR (Status)) {\r
	339	\r
	340	return Status;\r
	341	}\r
	342	\r
	343	if (BlockSize != NULL) {\r
	344	\r
8792362f	345	ReqOpt[0].OptionStr = (UINT8*) mMtftpOptions[PXE_MTFTP_OPTION_BLKSIZE_INDEX];\r
dc361cc5	346	ReqOpt[0].ValueStr = OptBuf;\r
	347	UtoA10 (BlockSize, (CHAR8 ) ReqOpt[0].ValueStr);\r
	348	OptCnt++;\r
	349	}\r
	350	\r
	351	Token.Event = NULL;\r
	352	Token.OverrideData = NULL;\r
	353	Token.Filename = Filename;\r
	354	Token.ModeStr = NULL;\r
	355	Token.OptionCount = OptCnt;\r
	356	Token.OptionList = ReqOpt;\r
	357	Token.BufferSize = *BufferSize;\r
	358	Token.Buffer = BufferPtr;\r
	359	Token.CheckPacket = PxeBcCheckPacket;\r
	360	Token.TimeoutCallback = NULL;\r
	361	Token.PacketNeeded = NULL;\r
	362	\r
	363	Status = Mtftp4->WriteFile (Mtftp4, &Token);\r
	364	*BufferSize = Token.BufferSize;\r
	365	\r
	366	Mtftp4->Configure (Mtftp4, NULL);\r
	367	\r
	368	return Status;\r
	369	}\r
	370	\r
	371	\r
	372	/**\r
f737cfb9	373	This function is to get data(file) from a directory(may be a server) by Tftp.\r
	374	\r
	375	@param Private Pointer to PxeBc private data.\r
	376	@param Config Pointer to Mtftp configuration data.\r
	377	@param Filename Pointer to file name.\r
	378	@param BlockSize Pointer to block size.\r
	379	@param BufferPtr Pointer to buffer.\r
	380	@param BufferSize Pointer to buffer size.\r
	381	@param DontUseBuffer Indicate whether with a receive buffer.\r
	382	\r
	383	@retval EFI_SUCCES Get the data from the file included in directory success. \r
	384	@retval EFI_DEVICE_ERROR The network device encountered an error during this operation.\r
	385	@retval other Operation failed.\r
	386	\r
dc361cc5	387	**/\r
dc361cc5	388	EFI_STATUS\r
	389	PxeBcTftpReadDirectory (\r
	390	IN PXEBC_PRIVATE_DATA *Private,\r
	391	IN EFI_MTFTP4_CONFIG_DATA *Config,\r
	392	IN UINT8 *Filename,\r
	393	IN UINTN *BlockSize,\r
	394	IN UINT8 *BufferPtr,\r
	395	IN OUT UINT64 *BufferSize,\r
	396	IN BOOLEAN DontUseBuffer\r
	397	)\r
	398	{\r
	399	EFI_MTFTP4_PROTOCOL *Mtftp4;\r
	400	EFI_MTFTP4_TOKEN Token;\r
	401	EFI_MTFTP4_OPTION ReqOpt[1];\r
	402	UINT32 OptCnt;\r
	403	UINT8 OptBuf[128];\r
	404	EFI_STATUS Status;\r
	405	\r
	406	Status = EFI_DEVICE_ERROR;\r
	407	Mtftp4 = Private->Mtftp4;\r
	408	OptCnt = 0;\r
	409	Config->InitialServerPort = PXEBC_BS_DOWNLOAD_PORT;\r
	410	\r
	411	Status = Mtftp4->Configure (Mtftp4, Config);\r
	412	if (EFI_ERROR (Status)) {\r
	413	\r
	414	return Status;\r
	415	}\r
	416	\r
	417	if (BlockSize != NULL) {\r
	418	\r
8792362f	419	ReqOpt[0].OptionStr = (UINT8*) mMtftpOptions[PXE_MTFTP_OPTION_BLKSIZE_INDEX];\r
dc361cc5	420	ReqOpt[0].ValueStr = OptBuf;\r
	421	UtoA10 (BlockSize, (CHAR8 ) ReqOpt[0].ValueStr);\r
	422	OptCnt++;\r
	423	}\r
	424	\r
	425	Token.Event = NULL;\r
	426	Token.OverrideData = NULL;\r
	427	Token.Filename = Filename;\r
	428	Token.ModeStr = NULL;\r
	429	Token.OptionCount = OptCnt;\r
	430	Token.OptionList = ReqOpt;\r
ea886bef	431	Token.Context = Private;\r
dc361cc5	432	\r
	433	if (DontUseBuffer) {\r
	434	Token.BufferSize = 0;\r
	435	Token.Buffer = NULL;\r
	436	} else {\r
	437	Token.BufferSize = *BufferSize;\r
	438	Token.Buffer = BufferPtr;\r
	439	}\r
	440	\r
	441	Token.CheckPacket = PxeBcCheckPacket;\r
	442	Token.TimeoutCallback = NULL;\r
	443	Token.PacketNeeded = NULL;\r
	444	\r
	445	Status = Mtftp4->ReadDirectory (Mtftp4, &Token);\r
	446	\r
	447	*BufferSize = Token.BufferSize;\r
	448	\r
	449	Mtftp4->Configure (Mtftp4, NULL);\r
	450	\r
	451	return Status;\r
	452	}\r
	453	\r