]>
Commit | Line | Data |
---|---|---|
8f819697 RN |
1 | /**@file\r |
2 | \r | |
3 | Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>\r | |
e3ba31da | 4 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
8f819697 RN |
5 | \r |
6 | **/\r | |
7 | \r | |
8 | #include "WinHost.h"\r | |
9 | \r | |
a550d468 | 10 | #define WIN_NT_BLOCK_IO_PRIVATE_SIGNATURE SIGNATURE_32 ('N', 'T', 'b', 'k')\r |
8f819697 | 11 | typedef struct {\r |
a550d468 | 12 | UINTN Signature;\r |
8f819697 | 13 | \r |
a550d468 | 14 | EMU_IO_THUNK_PROTOCOL *Thunk;\r |
8f819697 | 15 | \r |
a550d468 MK |
16 | CHAR16 *FileName;\r |
17 | BOOLEAN Removable;\r | |
18 | BOOLEAN Readonly;\r | |
8f819697 | 19 | \r |
a550d468 MK |
20 | HANDLE NtHandle;\r |
21 | UINT32 BlockSize;\r | |
8f819697 | 22 | \r |
a550d468 MK |
23 | EFI_BLOCK_IO_MEDIA *Media;\r |
24 | EMU_BLOCK_IO_PROTOCOL EmuBlockIo;\r | |
8f819697 RN |
25 | } WIN_NT_BLOCK_IO_PRIVATE;\r |
26 | \r | |
27 | #define WIN_NT_BLOCK_IO_PRIVATE_DATA_FROM_THIS(a) \\r | |
28 | CR(a, WIN_NT_BLOCK_IO_PRIVATE, EmuBlockIo, WIN_NT_BLOCK_IO_PRIVATE_SIGNATURE)\r | |
29 | \r | |
8f819697 RN |
30 | EFI_STATUS\r |
31 | WinNtBlockIoReset (\r | |
a550d468 MK |
32 | IN EMU_BLOCK_IO_PROTOCOL *This,\r |
33 | IN BOOLEAN ExtendedVerification\r | |
8f819697 RN |
34 | );\r |
35 | \r | |
8f819697 RN |
36 | EFI_STATUS\r |
37 | SetFilePointer64 (\r | |
a550d468 MK |
38 | IN WIN_NT_BLOCK_IO_PRIVATE *Private,\r |
39 | IN INT64 DistanceToMove,\r | |
40 | OUT UINT64 *NewFilePointer,\r | |
41 | IN DWORD MoveMethod\r | |
42 | )\r | |
43 | \r | |
8f819697 RN |
44 | /*++\r |
45 | \r | |
46 | This function extends the capability of SetFilePointer to accept 64 bit parameters\r | |
47 | \r | |
48 | --*/\r | |
49 | {\r | |
a550d468 MK |
50 | EFI_STATUS Status;\r |
51 | LARGE_INTEGER LargeInt;\r | |
8f819697 RN |
52 | \r |
53 | LargeInt.QuadPart = DistanceToMove;\r | |
a550d468 | 54 | Status = EFI_SUCCESS;\r |
8f819697 RN |
55 | \r |
56 | LargeInt.LowPart = SetFilePointer (\r | |
a550d468 MK |
57 | Private->NtHandle,\r |
58 | LargeInt.LowPart,\r | |
59 | &LargeInt.HighPart,\r | |
60 | MoveMethod\r | |
61 | );\r | |
8f819697 | 62 | \r |
a550d468 | 63 | if ((LargeInt.LowPart == -1) && (GetLastError () != NO_ERROR)) {\r |
8f819697 RN |
64 | Status = EFI_INVALID_PARAMETER;\r |
65 | }\r | |
66 | \r | |
67 | if (NewFilePointer != NULL) {\r | |
68 | *NewFilePointer = LargeInt.QuadPart;\r | |
69 | }\r | |
70 | \r | |
71 | return Status;\r | |
72 | }\r | |
73 | \r | |
8f819697 RN |
74 | EFI_STATUS\r |
75 | WinNtBlockIoOpenDevice (\r | |
a550d468 MK |
76 | IN WIN_NT_BLOCK_IO_PRIVATE *Private,\r |
77 | IN EFI_BLOCK_IO_MEDIA *Media\r | |
8f819697 RN |
78 | )\r |
79 | {\r | |
a550d468 MK |
80 | EFI_STATUS Status;\r |
81 | UINT64 FileSize;\r | |
8f819697 RN |
82 | \r |
83 | //\r | |
84 | // If the device is already opened, close it\r | |
85 | //\r | |
86 | if (Private->NtHandle != INVALID_HANDLE_VALUE) {\r | |
87 | WinNtBlockIoReset (&Private->EmuBlockIo, FALSE);\r | |
88 | }\r | |
89 | \r | |
90 | //\r | |
91 | // Open the device\r | |
92 | //\r | |
93 | Private->NtHandle = CreateFile (\r | |
a550d468 MK |
94 | Private->FileName,\r |
95 | GENERIC_READ | (Private->Readonly ? 0 : GENERIC_WRITE),\r | |
96 | FILE_SHARE_READ | FILE_SHARE_WRITE,\r | |
97 | NULL,\r | |
98 | OPEN_ALWAYS, // Create if it doesn't exist\r | |
99 | 0,\r | |
100 | NULL\r | |
101 | );\r | |
8f819697 RN |
102 | \r |
103 | if (Private->NtHandle == INVALID_HANDLE_VALUE) {\r | |
9c7da8d8 | 104 | DEBUG ((DEBUG_INFO, "OpenBlock: Could not open %S, %x\n", Private->FileName, GetLastError ()));\r |
8f819697 | 105 | Media->MediaPresent = FALSE;\r |
a550d468 | 106 | Status = EFI_NO_MEDIA;\r |
8f819697 RN |
107 | goto Done;\r |
108 | }\r | |
109 | \r | |
110 | //\r | |
111 | // get the size of the file\r | |
112 | //\r | |
113 | Status = SetFilePointer64 (Private, 0, &FileSize, FILE_END);\r | |
114 | \r | |
115 | if (EFI_ERROR (Status)) {\r | |
9c7da8d8 | 116 | DEBUG ((DEBUG_ERROR, "OpenBlock: Could not get filesize of %s\n", Private->FileName));\r |
8f819697 RN |
117 | Status = EFI_UNSUPPORTED;\r |
118 | goto Done;\r | |
119 | }\r | |
120 | \r | |
121 | Media->LastBlock = DivU64x32 (FileSize, (UINT32)Private->BlockSize) - 1;\r | |
122 | \r | |
9c7da8d8 | 123 | DEBUG ((DEBUG_INIT, "OpenBlock: opened %S\n", Private->FileName));\r |
8f819697 RN |
124 | Status = EFI_SUCCESS;\r |
125 | \r | |
126 | Done:\r | |
127 | if (EFI_ERROR (Status)) {\r | |
128 | if (Private->NtHandle != INVALID_HANDLE_VALUE) {\r | |
129 | WinNtBlockIoReset (&Private->EmuBlockIo, FALSE);\r | |
130 | }\r | |
131 | }\r | |
132 | \r | |
133 | return Status;\r | |
134 | }\r | |
135 | \r | |
8f819697 RN |
136 | EFI_STATUS\r |
137 | EFIAPI\r | |
138 | WinNtBlockIoCreateMapping (\r | |
a550d468 MK |
139 | IN EMU_BLOCK_IO_PROTOCOL *This,\r |
140 | IN EFI_BLOCK_IO_MEDIA *Media\r | |
8f819697 RN |
141 | )\r |
142 | {\r | |
a550d468 | 143 | WIN_NT_BLOCK_IO_PRIVATE *Private;\r |
8f819697 RN |
144 | \r |
145 | Private = WIN_NT_BLOCK_IO_PRIVATE_DATA_FROM_THIS (This);\r | |
146 | \r | |
147 | Media->MediaId = 0;\r | |
148 | Media->RemovableMedia = Private->Removable;\r | |
149 | Media->MediaPresent = TRUE;\r | |
150 | Media->LogicalPartition = FALSE;\r | |
151 | Media->ReadOnly = Private->Readonly;\r | |
152 | Media->WriteCaching = FALSE;\r | |
153 | Media->IoAlign = 1;\r | |
154 | Media->LastBlock = 0; // Filled in by OpenDevice\r | |
155 | Media->BlockSize = Private->BlockSize;\r | |
156 | \r | |
157 | // EFI_BLOCK_IO_PROTOCOL_REVISION2\r | |
158 | Media->LowestAlignedLba = 0;\r | |
159 | Media->LogicalBlocksPerPhysicalBlock = 0;\r | |
160 | \r | |
8f819697 RN |
161 | // EFI_BLOCK_IO_PROTOCOL_REVISION3\r |
162 | Media->OptimalTransferLengthGranularity = 0;\r | |
163 | \r | |
164 | //\r | |
165 | // Remember the Media pointer.\r | |
166 | //\r | |
167 | Private->Media = Media;\r | |
168 | return WinNtBlockIoOpenDevice (Private, Media);\r | |
169 | }\r | |
170 | \r | |
8f819697 RN |
171 | EFI_STATUS\r |
172 | WinNtBlockIoError (\r | |
a550d468 MK |
173 | IN WIN_NT_BLOCK_IO_PRIVATE *Private\r |
174 | )\r | |
175 | \r | |
8f819697 RN |
176 | /*++\r |
177 | \r | |
178 | Routine Description:\r | |
179 | \r | |
180 | TODO: Add function description\r | |
181 | \r | |
182 | Arguments:\r | |
183 | \r | |
184 | Private - TODO: add argument description\r | |
185 | \r | |
186 | Returns:\r | |
187 | \r | |
188 | TODO: add return values\r | |
189 | \r | |
190 | --*/\r | |
191 | {\r | |
a550d468 MK |
192 | EFI_BLOCK_IO_MEDIA *Media;\r |
193 | EFI_STATUS Status;\r | |
8f819697 RN |
194 | \r |
195 | Media = Private->Media;\r | |
196 | \r | |
197 | switch (GetLastError ()) {\r | |
a550d468 MK |
198 | case ERROR_NOT_READY:\r |
199 | Media->ReadOnly = FALSE;\r | |
200 | Media->MediaPresent = FALSE;\r | |
201 | Status = EFI_NO_MEDIA;\r | |
202 | break;\r | |
203 | \r | |
204 | case ERROR_WRONG_DISK:\r | |
205 | Media->ReadOnly = FALSE;\r | |
206 | Media->MediaPresent = TRUE;\r | |
207 | Media->MediaId++;\r | |
208 | Status = EFI_MEDIA_CHANGED;\r | |
209 | break;\r | |
210 | \r | |
211 | case ERROR_WRITE_PROTECT:\r | |
212 | Media->ReadOnly = TRUE;\r | |
213 | Status = EFI_WRITE_PROTECTED;\r | |
214 | break;\r | |
215 | \r | |
216 | default:\r | |
217 | Status = EFI_DEVICE_ERROR;\r | |
218 | break;\r | |
8f819697 RN |
219 | }\r |
220 | \r | |
a550d468 | 221 | if ((Status == EFI_NO_MEDIA) || (Status == EFI_MEDIA_CHANGED)) {\r |
8f819697 RN |
222 | WinNtBlockIoReset (&Private->EmuBlockIo, FALSE);\r |
223 | }\r | |
224 | \r | |
225 | return Status;\r | |
226 | }\r | |
227 | \r | |
8f819697 RN |
228 | EFI_STATUS\r |
229 | WinNtSignalToken (\r | |
a550d468 MK |
230 | IN OUT EFI_BLOCK_IO2_TOKEN *Token,\r |
231 | IN EFI_STATUS Status\r | |
232 | )\r | |
8f819697 RN |
233 | {\r |
234 | if (Token != NULL) {\r | |
235 | if (Token->Event != NULL) {\r | |
236 | // Caller is responcible for signaling EFI Event\r | |
237 | Token->TransactionStatus = Status;\r | |
238 | return EFI_SUCCESS;\r | |
239 | }\r | |
240 | }\r | |
a550d468 | 241 | \r |
8f819697 RN |
242 | return Status;\r |
243 | }\r | |
244 | \r | |
245 | /**\r | |
246 | Read BufferSize bytes from Lba into Buffer.\r | |
247 | \r | |
248 | This function reads the requested number of blocks from the device. All the\r | |
249 | blocks are read, or an error is returned.\r | |
250 | If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_or EFI_MEDIA_CHANGED is returned and\r | |
251 | non-blocking I/O is being used, the Event associated with this request will\r | |
252 | not be signaled.\r | |
253 | \r | |
254 | @param[in] This Indicates a pointer to the calling context.\r | |
255 | @param[in] MediaId Id of the media, changes every time the media is\r | |
256 | replaced.\r | |
257 | @param[in] Lba The starting Logical Block Address to read from.\r | |
79e4f2a5 | 258 | @param[in, out] Token A pointer to the token associated with the transaction.\r |
8f819697 RN |
259 | @param[in] BufferSize Size of Buffer, must be a multiple of device block size.\r |
260 | @param[out] Buffer A pointer to the destination buffer for the data. The\r | |
261 | caller is responsible for either having implicit or\r | |
262 | explicit ownership of the buffer.\r | |
263 | \r | |
264 | @retval EFI_SUCCESS The read request was queued if Token->Event is\r | |
265 | not NULL.The data was read correctly from the\r | |
266 | device if the Token->Event is NULL.\r | |
267 | @retval EFI_DEVICE_ERROR The device reported an error while performing\r | |
268 | the read.\r | |
269 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
270 | @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r | |
271 | @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the\r | |
272 | intrinsic block size of the device.\r | |
273 | @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,\r | |
274 | or the buffer is not on proper alignment.\r | |
275 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack\r | |
276 | of resources.\r | |
277 | **/\r | |
278 | EFI_STATUS\r | |
279 | WinNtBlockIoReadBlocks (\r | |
280 | IN EMU_BLOCK_IO_PROTOCOL *This,\r | |
281 | IN UINT32 MediaId,\r | |
282 | IN EFI_LBA Lba,\r | |
283 | IN OUT EFI_BLOCK_IO2_TOKEN *Token,\r | |
284 | IN UINTN BufferSize,\r | |
a550d468 | 285 | OUT VOID *Buffer\r |
8f819697 RN |
286 | )\r |
287 | {\r | |
a550d468 MK |
288 | WIN_NT_BLOCK_IO_PRIVATE *Private;\r |
289 | BOOL Flag;\r | |
290 | EFI_STATUS Status;\r | |
291 | DWORD BytesRead;\r | |
292 | UINT64 DistanceToMove;\r | |
293 | UINT64 DistanceMoved;\r | |
8f819697 RN |
294 | \r |
295 | Private = WIN_NT_BLOCK_IO_PRIVATE_DATA_FROM_THIS (This);\r | |
296 | \r | |
297 | //\r | |
298 | // Seek to proper position\r | |
299 | //\r | |
300 | DistanceToMove = MultU64x32 (Lba, (UINT32)Private->BlockSize);\r | |
a550d468 | 301 | Status = SetFilePointer64 (Private, DistanceToMove, &DistanceMoved, FILE_BEGIN);\r |
8f819697 RN |
302 | \r |
303 | if (EFI_ERROR (Status) || (DistanceToMove != DistanceMoved)) {\r | |
9c7da8d8 | 304 | DEBUG ((DEBUG_INIT, "ReadBlocks: SetFilePointer failed\n"));\r |
8f819697 RN |
305 | return WinNtBlockIoError (Private->Media);\r |
306 | }\r | |
307 | \r | |
308 | Flag = ReadFile (Private->NtHandle, Buffer, (DWORD)BufferSize, (LPDWORD)&BytesRead, NULL);\r | |
309 | if (!Flag || (BytesRead != BufferSize)) {\r | |
310 | return WinNtBlockIoError (Private->Media);\r | |
311 | }\r | |
312 | \r | |
313 | Private->Media->MediaPresent = TRUE;\r | |
314 | return WinNtSignalToken (Token, EFI_SUCCESS);\r | |
315 | }\r | |
316 | \r | |
8f819697 RN |
317 | /**\r |
318 | Write BufferSize bytes from Lba into Buffer.\r | |
319 | \r | |
320 | This function writes the requested number of blocks to the device. All blocks\r | |
321 | are written, or an error is returned.If EFI_DEVICE_ERROR, EFI_NO_MEDIA,\r | |
322 | EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED is returned and non-blocking I/O is\r | |
323 | being used, the Event associated with this request will not be signaled.\r | |
324 | \r | |
325 | @param[in] This Indicates a pointer to the calling context.\r | |
326 | @param[in] MediaId The media ID that the write request is for.\r | |
327 | @param[in] Lba The starting logical block address to be written. The\r | |
328 | caller is responsible for writing to only legitimate\r | |
329 | locations.\r | |
330 | @param[in, out] Token A pointer to the token associated with the transaction.\r | |
331 | @param[in] BufferSize Size of Buffer, must be a multiple of device block size.\r | |
332 | @param[in] Buffer A pointer to the source buffer for the data.\r | |
333 | \r | |
334 | @retval EFI_SUCCESS The write request was queued if Event is not NULL.\r | |
335 | The data was written correctly to the device if\r | |
336 | the Event is NULL.\r | |
337 | @retval EFI_WRITE_PROTECTED The device can not be written to.\r | |
338 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
3d6b7fd3 | 339 | @retval EFI_MEDIA_CHANGED The MediaId does not match the current device.\r |
8f819697 RN |
340 | @retval EFI_DEVICE_ERROR The device reported an error while performing the write.\r |
341 | @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.\r | |
342 | @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,\r | |
343 | or the buffer is not on proper alignment.\r | |
344 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack\r | |
345 | of resources.\r | |
346 | \r | |
347 | **/\r | |
348 | EFI_STATUS\r | |
349 | WinNtBlockIoWriteBlocks (\r | |
350 | IN EMU_BLOCK_IO_PROTOCOL *This,\r | |
351 | IN UINT32 MediaId,\r | |
352 | IN EFI_LBA Lba,\r | |
353 | IN OUT EFI_BLOCK_IO2_TOKEN *Token,\r | |
354 | IN UINTN BufferSize,\r | |
355 | IN VOID *Buffer\r | |
356 | )\r | |
357 | {\r | |
a550d468 MK |
358 | WIN_NT_BLOCK_IO_PRIVATE *Private;\r |
359 | UINTN BytesWritten;\r | |
360 | BOOL Success;\r | |
361 | EFI_STATUS Status;\r | |
362 | UINT64 DistanceToMove;\r | |
363 | UINT64 DistanceMoved;\r | |
8f819697 RN |
364 | \r |
365 | Private = WIN_NT_BLOCK_IO_PRIVATE_DATA_FROM_THIS (This);\r | |
366 | \r | |
367 | //\r | |
368 | // Seek to proper position\r | |
369 | //\r | |
370 | DistanceToMove = MultU64x32 (Lba, (UINT32)Private->BlockSize);\r | |
a550d468 | 371 | Status = SetFilePointer64 (Private, DistanceToMove, &DistanceMoved, FILE_BEGIN);\r |
8f819697 RN |
372 | \r |
373 | if (EFI_ERROR (Status) || (DistanceToMove != DistanceMoved)) {\r | |
9c7da8d8 | 374 | DEBUG ((DEBUG_INIT, "WriteBlocks: SetFilePointer failed\n"));\r |
8f819697 RN |
375 | return WinNtBlockIoError (Private->Media);\r |
376 | }\r | |
377 | \r | |
378 | Success = WriteFile (Private->NtHandle, Buffer, (DWORD)BufferSize, (LPDWORD)&BytesWritten, NULL);\r | |
379 | if (!Success || (BytesWritten != BufferSize)) {\r | |
380 | return WinNtBlockIoError (Private->Media);\r | |
381 | }\r | |
382 | \r | |
383 | //\r | |
384 | // If the write succeeded, we are not write protected and media is present.\r | |
385 | //\r | |
386 | Private->Media->MediaPresent = TRUE;\r | |
387 | Private->Media->ReadOnly = FALSE;\r | |
388 | return WinNtSignalToken (Token, EFI_SUCCESS);\r | |
389 | }\r | |
390 | \r | |
391 | /**\r | |
392 | Flush the Block Device.\r | |
393 | \r | |
394 | If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED\r | |
395 | is returned and non-blocking I/O is being used, the Event associated with\r | |
396 | this request will not be signaled.\r | |
397 | \r | |
398 | @param[in] This Indicates a pointer to the calling context.\r | |
399 | @param[in,out] Token A pointer to the token associated with the transaction\r | |
400 | \r | |
401 | @retval EFI_SUCCESS The flush request was queued if Event is not NULL.\r | |
402 | All outstanding data was written correctly to the\r | |
403 | device if the Event is NULL.\r | |
3d6b7fd3 | 404 | @retval EFI_DEVICE_ERROR The device reported an error while writing back\r |
8f819697 RN |
405 | the data.\r |
406 | @retval EFI_WRITE_PROTECTED The device cannot be written to.\r | |
407 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
408 | @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r | |
409 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack\r | |
410 | of resources.\r | |
411 | \r | |
412 | **/\r | |
413 | EFI_STATUS\r | |
414 | WinNtBlockIoFlushBlocks (\r | |
a550d468 MK |
415 | IN EMU_BLOCK_IO_PROTOCOL *This,\r |
416 | IN OUT EFI_BLOCK_IO2_TOKEN *Token\r | |
8f819697 RN |
417 | )\r |
418 | {\r | |
419 | return WinNtSignalToken (Token, EFI_SUCCESS);\r | |
420 | }\r | |
421 | \r | |
8f819697 RN |
422 | /**\r |
423 | Reset the block device hardware.\r | |
424 | \r | |
425 | @param[in] This Indicates a pointer to the calling context.\r | |
426 | @param[in] ExtendedVerification Indicates that the driver may perform a more\r | |
427 | exhausive verfication operation of the device\r | |
428 | during reset.\r | |
429 | \r | |
430 | @retval EFI_SUCCESS The device was reset.\r | |
431 | @retval EFI_DEVICE_ERROR The device is not functioning properly and could\r | |
432 | not be reset.\r | |
433 | \r | |
434 | **/\r | |
435 | EFI_STATUS\r | |
436 | WinNtBlockIoReset (\r | |
a550d468 MK |
437 | IN EMU_BLOCK_IO_PROTOCOL *This,\r |
438 | IN BOOLEAN ExtendedVerification\r | |
8f819697 RN |
439 | )\r |
440 | {\r | |
a550d468 | 441 | WIN_NT_BLOCK_IO_PRIVATE *Private;\r |
8f819697 RN |
442 | \r |
443 | Private = WIN_NT_BLOCK_IO_PRIVATE_DATA_FROM_THIS (This);\r | |
444 | \r | |
445 | if (Private->NtHandle != INVALID_HANDLE_VALUE) {\r | |
446 | CloseHandle (Private->NtHandle);\r | |
447 | Private->NtHandle = INVALID_HANDLE_VALUE;\r | |
448 | }\r | |
449 | \r | |
450 | return EFI_SUCCESS;\r | |
451 | }\r | |
452 | \r | |
a550d468 | 453 | EMU_BLOCK_IO_PROTOCOL gEmuBlockIoProtocol = {\r |
8f819697 RN |
454 | WinNtBlockIoReset,\r |
455 | WinNtBlockIoReadBlocks,\r | |
456 | WinNtBlockIoWriteBlocks,\r | |
457 | WinNtBlockIoFlushBlocks,\r | |
458 | WinNtBlockIoCreateMapping\r | |
459 | };\r | |
460 | \r | |
461 | EFI_STATUS\r | |
462 | EFIAPI\r | |
463 | WinNtBlockIoThunkOpen (\r | |
a550d468 | 464 | IN EMU_IO_THUNK_PROTOCOL *This\r |
8f819697 RN |
465 | )\r |
466 | {\r | |
467 | WIN_NT_BLOCK_IO_PRIVATE *Private;\r | |
468 | CHAR16 *Str;\r | |
469 | \r | |
470 | Private = AllocatePool (sizeof (*Private));\r | |
471 | if (Private == NULL) {\r | |
472 | return EFI_OUT_OF_RESOURCES;\r | |
473 | }\r | |
474 | \r | |
475 | Private->Signature = WIN_NT_BLOCK_IO_PRIVATE_SIGNATURE;\r | |
476 | Private->Thunk = This;\r | |
477 | CopyMem (&Private->EmuBlockIo, &gEmuBlockIoProtocol, sizeof (gEmuBlockIoProtocol));\r | |
478 | Private->BlockSize = 512;\r | |
a550d468 | 479 | Private->NtHandle = INVALID_HANDLE_VALUE;\r |
8f819697 RN |
480 | \r |
481 | Private->FileName = AllocateCopyPool (StrSize (This->ConfigString), This->ConfigString);\r | |
482 | if (Private->FileName == NULL) {\r | |
483 | return EFI_OUT_OF_RESOURCES;\r | |
484 | }\r | |
a550d468 | 485 | \r |
8f819697 RN |
486 | //\r |
487 | // Parse ConfigString\r | |
488 | // <ConfigString> := <FileName> ':' [RF][OW] ':' <BlockSize>\r | |
489 | //\r | |
490 | Str = StrStr (Private->FileName, L":");\r | |
491 | if (Str == NULL) {\r | |
492 | Private->Removable = FALSE;\r | |
493 | Private->Readonly = FALSE;\r | |
494 | } else {\r | |
495 | for (*Str++ = L'\0'; *Str != L'\0'; Str++) {\r | |
a550d468 MK |
496 | if ((*Str == 'R') || (*Str == 'F')) {\r |
497 | Private->Removable = (BOOLEAN)(*Str == L'R');\r | |
8f819697 | 498 | }\r |
a550d468 MK |
499 | \r |
500 | if ((*Str == 'O') || (*Str == 'W')) {\r | |
501 | Private->Readonly = (BOOLEAN)(*Str == L'O');\r | |
8f819697 | 502 | }\r |
a550d468 | 503 | \r |
8f819697 RN |
504 | if (*Str == ':') {\r |
505 | Private->BlockSize = wcstol (++Str, NULL, 0);\r | |
506 | break;\r | |
507 | }\r | |
508 | }\r | |
509 | }\r | |
510 | \r | |
511 | This->Interface = &Private->EmuBlockIo;\r | |
512 | This->Private = Private;\r | |
513 | return EFI_SUCCESS;\r | |
514 | }\r | |
515 | \r | |
8f819697 RN |
516 | EFI_STATUS\r |
517 | EFIAPI\r | |
518 | WinNtBlockIoThunkClose (\r | |
a550d468 | 519 | IN EMU_IO_THUNK_PROTOCOL *This\r |
8f819697 RN |
520 | )\r |
521 | {\r | |
522 | WIN_NT_BLOCK_IO_PRIVATE *Private;\r | |
523 | \r | |
524 | Private = This->Private;\r | |
525 | \r | |
526 | if (Private != NULL) {\r | |
527 | if (Private->FileName != NULL) {\r | |
528 | FreePool (Private->FileName);\r | |
529 | }\r | |
a550d468 | 530 | \r |
8f819697 RN |
531 | FreePool (Private);\r |
532 | }\r | |
533 | \r | |
534 | return EFI_SUCCESS;\r | |
535 | }\r | |
536 | \r | |
a550d468 | 537 | EMU_IO_THUNK_PROTOCOL mWinNtBlockIoThunkIo = {\r |
8f819697 RN |
538 | &gEmuBlockIoProtocolGuid,\r |
539 | NULL,\r | |
540 | NULL,\r | |
541 | 0,\r | |
542 | WinNtBlockIoThunkOpen,\r | |
543 | WinNtBlockIoThunkClose,\r | |
544 | NULL\r | |
545 | };\r |