[mirror_edk2.git] / NetworkPkg / Mtftp6Dxe / Mtftp6Support.h

/** @file\r
  Mtftp6 support functions declaration.\r
\r
  Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#ifndef __EFI_MTFTP6_SUPPORT_H__\r
#define __EFI_MTFTP6_SUPPORT_H__\r
\r
//\r
// The structure representing a range of block numbers, [Start, End].\r
// It is used to remember the holes in the MTFTP block space. If all\r
// the holes are filled in, then the download or upload has completed.\r
//\r
typedef struct {\r
  LIST_ENTRY                Link;\r
  INTN                      Start;\r
  INTN                      End;\r
  INTN                      Round;\r
  INTN                      Bound;\r
} MTFTP6_BLOCK_RANGE;\r
\r
\r
/**\r
  Initialize the block range for either RRQ or WRQ. RRQ and WRQ have\r
  different requirements for Start and End. For example, during startup,\r
  WRQ initializes its whole valid block range to [0, 0xffff]. This\r
  is because the server will send an ACK0 to inform the user to start the\r
  upload. When the client receives an ACK0, it will remove 0 from the range,\r
  get the next block number, which is 1, then upload the BLOCK1. For RRQ\r
  without option negotiation, the server will directly send us the BLOCK1\r
  in response to the client's RRQ. When BLOCK1 is received, the client will\r
  remove it from the block range and send an ACK. It also works if there\r
  is option negotiation.\r
\r
  @param[in]  Head                   The block range head to initialize.\r
  @param[in]  Start                  The Start block number.\r
  @param[in]  End                    The last block number.\r
\r
  @retval EFI_OUT_OF_RESOURCES   Failed to allocate memory for initial block range.\r
  @retval EFI_SUCCESS            The initial block range is created.\r
\r
**/\r
EFI_STATUS\r
Mtftp6InitBlockRange (\r
  IN LIST_ENTRY             *Head,\r
  IN UINT16                 Start,\r
  IN UINT16                 End\r
  );\r
\r
\r
/**\r
  Get the first valid block number on the range list.\r
\r
  @param[in]  Head                   The block range head.\r
\r
  @retval     ==-1                   If the block range is empty.\r
  @retval     >-1                    The first valid block number.\r
\r
**/\r
INTN\r
Mtftp6GetNextBlockNum (\r
  IN LIST_ENTRY             *Head\r
  );\r
\r
\r
/**\r
  Set the last block number of the block range list. It\r
  removes all the blocks after the Last. MTFTP initialize the\r
  block range to the maximum possible range, such as [0, 0xffff]\r
  for WRQ. When it gets the last block number, it calls\r
  this function to set the last block number.\r
\r
  @param[in]  Head                   The block range list.\r
  @param[in]  Last                   The last block number.\r
\r
**/\r
VOID\r
Mtftp6SetLastBlockNum (\r
  IN LIST_ENTRY             *Head,\r
  IN UINT16                 Last\r
  );\r
\r
\r
/**\r
  Remove the block number from the block range list.\r
\r
  @param[in]  Head                   The block range list to remove from.\r
  @param[in]  Num                    The block number to remove.\r
  @param[in]  Completed              Whether Num is the last block number.\r
  @param[out] BlockCounter           The continuous block counter instead of the value after roll-over.\r
\r
  @retval EFI_NOT_FOUND          The block number isn't in the block range list.\r
  @retval EFI_SUCCESS            The block number has been removed from the list.\r
  @retval EFI_OUT_OF_RESOURCES   Failed to allocate resources.\r
\r
**/\r
EFI_STATUS\r
Mtftp6RemoveBlockNum (\r
  IN LIST_ENTRY             *Head,\r
  IN UINT16                 Num,\r
  IN BOOLEAN                Completed,\r
  OUT UINT64                *BlockCounter\r
  );\r
\r
\r
/**\r
  Build and transmit the request packet for the Mtftp6 instance.\r
\r
  @param[in]  Instance               The pointer to the Mtftp6 instance.\r
  @param[in]  Operation              The operation code of this packet.\r
\r
  @retval EFI_OUT_OF_RESOURCES   Failed to allocate memory for the request.\r
  @retval EFI_SUCCESS            The request was built and sent.\r
  @retval Others                 Failed to transmit the packet.\r
\r
**/\r
EFI_STATUS\r
Mtftp6SendRequest (\r
  IN MTFTP6_INSTANCE        *Instance,\r
  IN UINT16                 Operation\r
  );\r
\r
\r
/**\r
  Build and send an error packet.\r
\r
  @param[in]  Instance               The pointer to the Mtftp6 instance.\r
  @param[in]  ErrCode                The error code in the packet.\r
  @param[in]  ErrInfo                The error message in the packet.\r
\r
  @retval EFI_OUT_OF_RESOURCES   Failed to allocate memory for the error packet.\r
  @retval EFI_SUCCESS            The error packet was transmitted.\r
  @retval Others                 Failed to transmit the packet.\r
\r
**/\r
EFI_STATUS\r
Mtftp6SendError (\r
  IN MTFTP6_INSTANCE        *Instance,\r
  IN UINT16                 ErrCode,\r
  IN UINT8*                 ErrInfo\r
  );\r
\r
\r
/**\r
  Send the packet for the Mtftp6 instance.\r
\r
  @param[in]  Instance               The pointer to the Mtftp6 instance.\r
  @param[in]  Packet                 The pointer to the packet to be sent.\r
\r
  @retval EFI_SUCCESS            The packet was sent out\r
  @retval Others                 Failed to transmit the packet.\r
\r
**/\r
EFI_STATUS\r
Mtftp6TransmitPacket (\r
  IN MTFTP6_INSTANCE        *Instance,\r
  IN NET_BUF                *Packet\r
  );\r
\r
\r
/**\r
  Check packet for GetInfo callback routine.\r
\r
  @param[in]  This                   The pointer to the Mtftp6 protocol.\r
  @param[in]  Token                  The pointer to the Mtftp6 token.\r
  @param[in]  PacketLen              The length of the packet\r
  @param[in]  Packet                 The pointer to the received packet.\r
\r
  @retval EFI_SUCCESS            The check process passed successfully.\r
  @retval EFI_ABORTED            Abort the Mtftp6 operation.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Mtftp6CheckPacket (\r
  IN EFI_MTFTP6_PROTOCOL    *This,\r
  IN EFI_MTFTP6_TOKEN       *Token,\r
  IN UINT16                 PacketLen,\r
  IN EFI_MTFTP6_PACKET      *Packet\r
  );\r
\r
\r
/**\r
  The dummy configure routine for create a new Udp6 Io.\r
\r
  @param[in]  UdpIo                  The pointer to the Udp6 Io.\r
  @param[in]  Context                The pointer to the context.\r
\r
  @retval EFI_SUCCESS                The value is always returned.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Mtftp6ConfigDummyUdpIo (\r
  IN UDP_IO                 *UdpIo,\r
  IN VOID                   *Context\r
  );\r
\r
\r
/**\r
  The configure routine for the Mtftp6 instance to transmit/receive.\r
\r
  @param[in]  UdpIo                  The pointer to the Udp6 Io.\r
  @param[in]  ServerIp               The pointer to the server address.\r
  @param[in]  ServerPort             The pointer to the server port.\r
  @param[in]  LocalIp                The pointer to the local address.\r
  @param[in]  LocalPort              The pointer to the local port.\r
\r
  @retval EFI_SUCCESS            Configure the Udp6 Io for Mtftp6 successfully.\r
  @retval EFI_NO_MAPPING         The corresponding Ip6 instance has not been\r
                                 configured yet.\r
\r
**/\r
EFI_STATUS\r
Mtftp6ConfigUdpIo (\r
  IN UDP_IO                 *UdpIo,\r
  IN EFI_IPv6_ADDRESS       *ServerIp,\r
  IN UINT16                 ServerPort,\r
  IN EFI_IPv6_ADDRESS       *LocalIp,\r
  IN UINT16                 LocalPort\r
  );\r
\r
\r
/**\r
  Clean up the current Mtftp6 operation.\r
\r
  @param[in]  Instance               The pointer to the Mtftp6 instance.\r
  @param[in]  Result                 The result to be returned to the user.\r
\r
**/\r
VOID\r
Mtftp6OperationClean (\r
  IN MTFTP6_INSTANCE        *Instance,\r
  IN EFI_STATUS             Result\r
  );\r
\r
\r
/**\r
  Start the Mtftp6 instance to perform the operation, such as read file,\r
  write file, and read directory.\r
\r
  @param[in]  This                   The MTFTP session\r
  @param[in]  Token                  The token that encapsulates the user's request.\r
  @param[in]  OpCode                 The operation to perform.\r
\r
  @retval EFI_INVALID_PARAMETER  Some of the parameters are invalid.\r
  @retval EFI_NOT_STARTED        The MTFTP session hasn't been configured.\r
  @retval EFI_ALREADY_STARTED    There is pending operation for the session.\r
  @retval EFI_SUCCESS            The operation was successfully started.\r
\r
**/\r
EFI_STATUS\r
Mtftp6OperationStart (\r
  IN EFI_MTFTP6_PROTOCOL    *This,\r
  IN EFI_MTFTP6_TOKEN       *Token,\r
  IN UINT16                 OpCode\r
  );\r
\r
\r
/**\r
  The timer ticking routine for the Mtftp6 instance.\r
\r
  @param[in]  Event                  The pointer to the ticking event.\r
  @param[in]  Context                The pointer to the context.\r
\r
**/\r
VOID\r
EFIAPI\r
Mtftp6OnTimerTick (\r
  IN EFI_EVENT              Event,\r
  IN VOID                   *Context\r
  );\r
\r
\r
/**\r
  The packet process callback for Mtftp6 upload.\r
\r
  @param[in]  UdpPacket             The pointer to the packet received.\r
  @param[in]  UdpEpt                The pointer to the Udp6 access point.\r
  @param[in]  IoStatus              The status from the Udp6 instance.\r
  @param[in]  Context               The pointer to the context.\r
\r
**/\r
VOID\r
EFIAPI\r
Mtftp6WrqInput (\r
  IN NET_BUF                *UdpPacket,\r
  IN UDP_END_POINT          *UdpEpt,\r
  IN EFI_STATUS             IoStatus,\r
  IN VOID                   *Context\r
  );\r
\r
\r
/**\r
  Start the Mtftp6 instance to upload. It will first init some states,\r
  then send the WRQ request packet, and start to receive the packet.\r
\r
  @param[in]  Instance              The pointer to the Mtftp6 instance.\r
  @param[in]  Operation             The operation code of current packet.\r
\r
  @retval EFI_SUCCESS           The Mtftp6 was started to upload.\r
  @retval Others                Failed to start to upload.\r
\r
**/\r
EFI_STATUS\r
Mtftp6WrqStart (\r
  IN MTFTP6_INSTANCE        *Instance,\r
  IN UINT16                 Operation\r
  );\r
\r
\r
/**\r
  The packet process callback for Mtftp6 download.\r
\r
  @param[in]  UdpPacket             The pointer to the packet received.\r
  @param[in]  UdpEpt                The pointer to the Udp6 access point.\r
  @param[in]  IoStatus              The status from Udp6 instance.\r
  @param[in]  Context               The pointer to the context.\r
\r
**/\r
VOID\r
EFIAPI\r
Mtftp6RrqInput (\r
  IN NET_BUF                *UdpPacket,\r
  IN UDP_END_POINT          *UdpEpt,\r
  IN EFI_STATUS             IoStatus,\r
  IN VOID                   *Context\r
  );\r
\r
\r
/**\r
  Start the Mtftp6 instance to download. It first initializes some\r
  of the internal states then builds and sends an RRQ reqeuest packet.\r
  Finally, it starts receive for the downloading.\r
\r
  @param[in]  Instance              The pointer to the Mtftp6 instance.\r
  @param[in]  Operation             The operation code of current packet.\r
\r
  @retval EFI_SUCCESS           The Mtftp6 was started to download.\r
  @retval Others                Failed to start to download.\r
\r
**/\r
EFI_STATUS\r
Mtftp6RrqStart (\r
  IN MTFTP6_INSTANCE        *Instance,\r
  IN UINT16                 Operation\r
  );\r
\r
#endif\r
Commit	Line	Data
a3bcde70 HT	1	/** @file\r
	2	Mtftp6 support functions declaration.\r
	3	\r
2f6693c2	4	Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>\r
a3bcde70	5	\r
ecf98fbc	6	SPDX-License-Identifier: BSD-2-Clause-Patent\r
a3bcde70 HT	7	\r
	8	**/\r
	9	\r
	10	#ifndef __EFI_MTFTP6_SUPPORT_H__\r
	11	#define __EFI_MTFTP6_SUPPORT_H__\r
	12	\r
	13	//\r
	14	// The structure representing a range of block numbers, [Start, End].\r
	15	// It is used to remember the holes in the MTFTP block space. If all\r
	16	// the holes are filled in, then the download or upload has completed.\r
	17	//\r
	18	typedef struct {\r
	19	LIST_ENTRY Link;\r
	20	INTN Start;\r
	21	INTN End;\r
	22	INTN Round;\r
	23	INTN Bound;\r
	24	} MTFTP6_BLOCK_RANGE;\r
	25	\r
	26	\r
	27	/**\r
	28	Initialize the block range for either RRQ or WRQ. RRQ and WRQ have\r
	29	different requirements for Start and End. For example, during startup,\r
	30	WRQ initializes its whole valid block range to [0, 0xffff]. This\r
	31	is because the server will send an ACK0 to inform the user to start the\r
	32	upload. When the client receives an ACK0, it will remove 0 from the range,\r
	33	get the next block number, which is 1, then upload the BLOCK1. For RRQ\r
	34	without option negotiation, the server will directly send us the BLOCK1\r
	35	in response to the client's RRQ. When BLOCK1 is received, the client will\r
	36	remove it from the block range and send an ACK. It also works if there\r
	37	is option negotiation.\r
	38	\r
	39	@param[in] Head The block range head to initialize.\r
	40	@param[in] Start The Start block number.\r
	41	@param[in] End The last block number.\r
	42	\r
	43	@retval EFI_OUT_OF_RESOURCES Failed to allocate memory for initial block range.\r
	44	@retval EFI_SUCCESS The initial block range is created.\r
	45	\r
	46	**/\r
	47	EFI_STATUS\r
	48	Mtftp6InitBlockRange (\r
	49	IN LIST_ENTRY *Head,\r
	50	IN UINT16 Start,\r
	51	IN UINT16 End\r
	52	);\r
	53	\r
	54	\r
	55	/**\r
	56	Get the first valid block number on the range list.\r
	57	\r
	58	@param[in] Head The block range head.\r
	59	\r
	60	@retval ==-1 If the block range is empty.\r
	61	@retval >-1 The first valid block number.\r
	62	\r
	63	**/\r
	64	INTN\r
	65	Mtftp6GetNextBlockNum (\r
	66	IN LIST_ENTRY *Head\r
	67	);\r
	68	\r
	69	\r
	70	/**\r
71	Set the last block number of the block range list. It\r
72	removes all the blocks after the Last. MTFTP initialize the\r
73	block range to the maximum possible range, such as [0, 0xffff]\r
74	for WRQ. When it gets the last block number, it calls\r
75	this function to set the last block number.\r
76	\r
77	@param[in] Head The block range list.\r
78	@param[in] Last The last block number.\r
79	\r
80	**/\r
81	VOID\r
82	Mtftp6SetLastBlockNum (\r
83	IN LIST_ENTRY *Head,\r
84	IN UINT16 Last\r
85	);\r
86	\r
87	\r
88	/**\r
89	Remove the block number from the block range list.\r
90	\r
91	@param[in] Head The block range list to remove from.\r
92	@param[in] Num The block number to remove.\r
2f6693c2 JW	93	@param[in] Completed Whether Num is the last block number.\r
2f6693c2 JW	94	@param[out] BlockCounter The continuous block counter instead of the value after roll-over.\r
a3bcde70 HT	95	\r
	96	@retval EFI_NOT_FOUND The block number isn't in the block range list.\r
	97	@retval EFI_SUCCESS The block number has been removed from the list.\r
	98	@retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r
	99	\r
	100	**/\r
	101	EFI_STATUS\r
	102	Mtftp6RemoveBlockNum (\r
	103	IN LIST_ENTRY *Head,\r
	104	IN UINT16 Num,\r
	105	IN BOOLEAN Completed,\r
2f6693c2	106	OUT UINT64 *BlockCounter\r
a3bcde70 HT	107	);\r
	108	\r
	109	\r
	110	/**\r
	111	Build and transmit the request packet for the Mtftp6 instance.\r
	112	\r
	113	@param[in] Instance The pointer to the Mtftp6 instance.\r
	114	@param[in] Operation The operation code of this packet.\r
	115	\r
	116	@retval EFI_OUT_OF_RESOURCES Failed to allocate memory for the request.\r
	117	@retval EFI_SUCCESS The request was built and sent.\r
	118	@retval Others Failed to transmit the packet.\r
	119	\r
	120	**/\r
	121	EFI_STATUS\r
	122	Mtftp6SendRequest (\r
	123	IN MTFTP6_INSTANCE *Instance,\r
	124	IN UINT16 Operation\r
	125	);\r
	126	\r
	127	\r
	128	/**\r
	129	Build and send an error packet.\r
	130	\r
	131	@param[in] Instance The pointer to the Mtftp6 instance.\r
	132	@param[in] ErrCode The error code in the packet.\r
	133	@param[in] ErrInfo The error message in the packet.\r
	134	\r
	135	@retval EFI_OUT_OF_RESOURCES Failed to allocate memory for the error packet.\r
	136	@retval EFI_SUCCESS The error packet was transmitted.\r
	137	@retval Others Failed to transmit the packet.\r
	138	\r
	139	**/\r
	140	EFI_STATUS\r
	141	Mtftp6SendError (\r
	142	IN MTFTP6_INSTANCE *Instance,\r
	143	IN UINT16 ErrCode,\r
	144	IN UINT8* ErrInfo\r
	145	);\r
	146	\r
	147	\r
	148	/**\r
	149	Send the packet for the Mtftp6 instance.\r
	150	\r
	151	@param[in] Instance The pointer to the Mtftp6 instance.\r
	152	@param[in] Packet The pointer to the packet to be sent.\r
	153	\r
	154	@retval EFI_SUCCESS The packet was sent out\r
	155	@retval Others Failed to transmit the packet.\r
	156	\r
	157	**/\r
	158	EFI_STATUS\r
	159	Mtftp6TransmitPacket (\r
	160	IN MTFTP6_INSTANCE *Instance,\r
	161	IN NET_BUF *Packet\r
	162	);\r
	163	\r
	164	\r
	165	/**\r
	166	Check packet for GetInfo callback routine.\r
	167	\r
	168	@param[in] This The pointer to the Mtftp6 protocol.\r
	169	@param[in] Token The pointer to the Mtftp6 token.\r
	170	@param[in] PacketLen The length of the packet\r
171	@param[in] Packet The pointer to the received packet.\r
172	\r
173	@retval EFI_SUCCESS The check process passed successfully.\r
174	@retval EFI_ABORTED Abort the Mtftp6 operation.\r
175	\r
176	**/\r
177	EFI_STATUS\r
178	EFIAPI\r
179	Mtftp6CheckPacket (\r
180	IN EFI_MTFTP6_PROTOCOL *This,\r
181	IN EFI_MTFTP6_TOKEN *Token,\r
182	IN UINT16 PacketLen,\r
183	IN EFI_MTFTP6_PACKET *Packet\r
184	);\r
185	\r
186	\r
187	/**\r
188	The dummy configure routine for create a new Udp6 Io.\r
189	\r
190	@param[in] UdpIo The pointer to the Udp6 Io.\r
191	@param[in] Context The pointer to the context.\r
192	\r
193	@retval EFI_SUCCESS The value is always returned.\r
194	\r
195	**/\r
196	EFI_STATUS\r
197	EFIAPI\r
198	Mtftp6ConfigDummyUdpIo (\r
199	IN UDP_IO *UdpIo,\r
200	IN VOID *Context\r
201	);\r
202	\r
203	\r
204	/**\r
205	The configure routine for the Mtftp6 instance to transmit/receive.\r
206	\r
207	@param[in] UdpIo The pointer to the Udp6 Io.\r
208	@param[in] ServerIp The pointer to the server address.\r
209	@param[in] ServerPort The pointer to the server port.\r
210	@param[in] LocalIp The pointer to the local address.\r
211	@param[in] LocalPort The pointer to the local port.\r
212	\r
213	@retval EFI_SUCCESS Configure the Udp6 Io for Mtftp6 successfully.\r
214	@retval EFI_NO_MAPPING The corresponding Ip6 instance has not been\r
215	configured yet.\r
216	\r
217	**/\r
218	EFI_STATUS\r
219	Mtftp6ConfigUdpIo (\r
220	IN UDP_IO *UdpIo,\r
221	IN EFI_IPv6_ADDRESS *ServerIp,\r
222	IN UINT16 ServerPort,\r
223	IN EFI_IPv6_ADDRESS *LocalIp,\r
224	IN UINT16 LocalPort\r
225	);\r
226	\r
227	\r
228	/**\r
229	Clean up the current Mtftp6 operation.\r
230	\r
231	@param[in] Instance The pointer to the Mtftp6 instance.\r
232	@param[in] Result The result to be returned to the user.\r
233	\r
234	**/\r
235	VOID\r
236	Mtftp6OperationClean (\r
237	IN MTFTP6_INSTANCE *Instance,\r
238	IN EFI_STATUS Result\r
239	);\r
240	\r
241	\r
242	/**\r
243	Start the Mtftp6 instance to perform the operation, such as read file,\r
244	write file, and read directory.\r
245	\r
246	@param[in] This The MTFTP session\r
247	@param[in] Token The token that encapsulates the user's request.\r
248	@param[in] OpCode The operation to perform.\r
249	\r
250	@retval EFI_INVALID_PARAMETER Some of the parameters are invalid.\r
251	@retval EFI_NOT_STARTED The MTFTP session hasn't been configured.\r
252	@retval EFI_ALREADY_STARTED There is pending operation for the session.\r
253	@retval EFI_SUCCESS The operation was successfully started.\r
254	\r
255	**/\r
256	EFI_STATUS\r
257	Mtftp6OperationStart (\r
258	IN EFI_MTFTP6_PROTOCOL *This,\r
259	IN EFI_MTFTP6_TOKEN *Token,\r
260	IN UINT16 OpCode\r
261	);\r
262	\r
263	\r
264	/**\r
265	The timer ticking routine for the Mtftp6 instance.\r
266	\r
267	@param[in] Event The pointer to the ticking event.\r
268	@param[in] Context The pointer to the context.\r
269	\r
270	**/\r
271	VOID\r
272	EFIAPI\r
273	Mtftp6OnTimerTick (\r
274	IN EFI_EVENT Event,\r
275	IN VOID *Context\r
276	);\r
277	\r
278	\r
279	/**\r
280	The packet process callback for Mtftp6 upload.\r
281	\r
282	@param[in] UdpPacket The pointer to the packet received.\r
283	@param[in] UdpEpt The pointer to the Udp6 access point.\r
284	@param[in] IoStatus The status from the Udp6 instance.\r
285	@param[in] Context The pointer to the context.\r
286	\r
287	**/\r
288	VOID\r
289	EFIAPI\r
290	Mtftp6WrqInput (\r
291	IN NET_BUF *UdpPacket,\r
292	IN UDP_END_POINT *UdpEpt,\r
293	IN EFI_STATUS IoStatus,\r
294	IN VOID *Context\r
295	);\r
296	\r
297	\r
298	/**\r
299	Start the Mtftp6 instance to upload. It will first init some states,\r
300	then send the WRQ request packet, and start to receive the packet.\r
301	\r
302	@param[in] Instance The pointer to the Mtftp6 instance.\r
303	@param[in] Operation The operation code of current packet.\r
304	\r
305	@retval EFI_SUCCESS The Mtftp6 was started to upload.\r
306	@retval Others Failed to start to upload.\r
307	\r
308	**/\r
309	EFI_STATUS\r
310	Mtftp6WrqStart (\r
311	IN MTFTP6_INSTANCE *Instance,\r
312	IN UINT16 Operation\r
313	);\r
314	\r
315	\r
316	/**\r
317	The packet process callback for Mtftp6 download.\r
318	\r
319	@param[in] UdpPacket The pointer to the packet received.\r
320	@param[in] UdpEpt The pointer to the Udp6 access point.\r
321	@param[in] IoStatus The status from Udp6 instance.\r
322	@param[in] Context The pointer to the context.\r
323	\r
324	**/\r
325	VOID\r
326	EFIAPI\r
327	Mtftp6RrqInput (\r
328	IN NET_BUF *UdpPacket,\r
329	IN UDP_END_POINT *UdpEpt,\r
330	IN EFI_STATUS IoStatus,\r
331	IN VOID *Context\r
332	);\r
333	\r
334	\r
335	/**\r
336	Start the Mtftp6 instance to download. It first initializes some\r
337	of the internal states then builds and sends an RRQ reqeuest packet.\r
338	Finally, it starts receive for the downloading.\r
339	\r
340	@param[in] Instance The pointer to the Mtftp6 instance.\r
341	@param[in] Operation The operation code of current packet.\r
342	\r
343	@retval EFI_SUCCESS The Mtftp6 was started to download.\r
344	@retval Others Failed to start to download.\r
345	\r
346	**/\r
347	EFI_STATUS\r
348	Mtftp6RrqStart (\r
349	IN MTFTP6_INSTANCE *Instance,\r
350	IN UINT16 Operation\r
351	);\r
352	\r
353	#endif\r