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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 | |
10 | #define WIN_NT_BLOCK_IO_PRIVATE_SIGNATURE SIGNATURE_32 ('N', 'T', 'b', 'k')\r | |
11 | typedef struct {\r | |
12 | UINTN Signature;\r | |
13 | \r | |
14 | EMU_IO_THUNK_PROTOCOL *Thunk;\r | |
15 | \r | |
16 | CHAR16 *FileName;\r | |
17 | BOOLEAN Removable;\r | |
18 | BOOLEAN Readonly;\r | |
19 | \r | |
20 | HANDLE NtHandle;\r | |
f89c018f | 21 | UINT32 BlockSize;\r |
8f819697 RN |
22 | \r |
23 | EFI_BLOCK_IO_MEDIA *Media;\r | |
24 | EMU_BLOCK_IO_PROTOCOL EmuBlockIo;\r | |
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 | |
30 | \r | |
31 | EFI_STATUS\r | |
32 | WinNtBlockIoReset (\r | |
33 | IN EMU_BLOCK_IO_PROTOCOL *This,\r | |
34 | IN BOOLEAN ExtendedVerification\r | |
35 | );\r | |
36 | \r | |
37 | \r | |
38 | \r | |
39 | \r | |
40 | EFI_STATUS\r | |
41 | SetFilePointer64 (\r | |
42 | IN WIN_NT_BLOCK_IO_PRIVATE *Private,\r | |
43 | IN INT64 DistanceToMove,\r | |
44 | OUT UINT64 *NewFilePointer,\r | |
45 | IN DWORD MoveMethod\r | |
46 | )\r | |
47 | /*++\r | |
48 | \r | |
49 | This function extends the capability of SetFilePointer to accept 64 bit parameters\r | |
50 | \r | |
51 | --*/\r | |
52 | {\r | |
53 | EFI_STATUS Status;\r | |
54 | LARGE_INTEGER LargeInt;\r | |
55 | \r | |
56 | LargeInt.QuadPart = DistanceToMove;\r | |
57 | Status = EFI_SUCCESS;\r | |
58 | \r | |
59 | LargeInt.LowPart = SetFilePointer (\r | |
60 | Private->NtHandle,\r | |
61 | LargeInt.LowPart,\r | |
62 | &LargeInt.HighPart,\r | |
63 | MoveMethod\r | |
64 | );\r | |
65 | \r | |
66 | if (LargeInt.LowPart == -1 && GetLastError () != NO_ERROR) {\r | |
67 | Status = EFI_INVALID_PARAMETER;\r | |
68 | }\r | |
69 | \r | |
70 | if (NewFilePointer != NULL) {\r | |
71 | *NewFilePointer = LargeInt.QuadPart;\r | |
72 | }\r | |
73 | \r | |
74 | return Status;\r | |
75 | }\r | |
76 | \r | |
77 | \r | |
78 | \r | |
79 | EFI_STATUS\r | |
80 | WinNtBlockIoOpenDevice (\r | |
81 | IN WIN_NT_BLOCK_IO_PRIVATE *Private,\r | |
82 | IN EFI_BLOCK_IO_MEDIA *Media\r | |
83 | )\r | |
84 | {\r | |
85 | EFI_STATUS Status;\r | |
86 | UINT64 FileSize;\r | |
87 | \r | |
88 | //\r | |
89 | // If the device is already opened, close it\r | |
90 | //\r | |
91 | if (Private->NtHandle != INVALID_HANDLE_VALUE) {\r | |
92 | WinNtBlockIoReset (&Private->EmuBlockIo, FALSE);\r | |
93 | }\r | |
94 | \r | |
95 | //\r | |
96 | // Open the device\r | |
97 | //\r | |
98 | Private->NtHandle = CreateFile (\r | |
99 | Private->FileName,\r | |
100 | GENERIC_READ | (Private->Readonly ? 0 : GENERIC_WRITE),\r | |
101 | FILE_SHARE_READ | FILE_SHARE_WRITE,\r | |
102 | NULL,\r | |
103 | OPEN_ALWAYS, // Create if it doesn't exist\r | |
104 | 0,\r | |
105 | NULL\r | |
106 | );\r | |
107 | \r | |
108 | if (Private->NtHandle == INVALID_HANDLE_VALUE) {\r | |
109 | DEBUG ((EFI_D_INFO, "OpenBlock: Could not open %S, %x\n", Private->FileName, GetLastError ()));\r | |
110 | Media->MediaPresent = FALSE;\r | |
111 | Status = EFI_NO_MEDIA;\r | |
112 | goto Done;\r | |
113 | }\r | |
114 | \r | |
115 | //\r | |
116 | // get the size of the file\r | |
117 | //\r | |
118 | Status = SetFilePointer64 (Private, 0, &FileSize, FILE_END);\r | |
119 | \r | |
120 | if (EFI_ERROR (Status)) {\r | |
121 | DEBUG ((EFI_D_ERROR, "OpenBlock: Could not get filesize of %s\n", Private->FileName));\r | |
122 | Status = EFI_UNSUPPORTED;\r | |
123 | goto Done;\r | |
124 | }\r | |
125 | \r | |
126 | Media->LastBlock = DivU64x32 (FileSize, (UINT32)Private->BlockSize) - 1;\r | |
127 | \r | |
128 | DEBUG ((EFI_D_INIT, "OpenBlock: opened %S\n", Private->FileName));\r | |
129 | Status = EFI_SUCCESS;\r | |
130 | \r | |
131 | Done:\r | |
132 | if (EFI_ERROR (Status)) {\r | |
133 | if (Private->NtHandle != INVALID_HANDLE_VALUE) {\r | |
134 | WinNtBlockIoReset (&Private->EmuBlockIo, FALSE);\r | |
135 | }\r | |
136 | }\r | |
137 | \r | |
138 | return Status;\r | |
139 | }\r | |
140 | \r | |
141 | \r | |
142 | EFI_STATUS\r | |
143 | EFIAPI\r | |
144 | WinNtBlockIoCreateMapping (\r | |
145 | IN EMU_BLOCK_IO_PROTOCOL *This,\r | |
146 | IN EFI_BLOCK_IO_MEDIA *Media\r | |
147 | )\r | |
148 | {\r | |
149 | WIN_NT_BLOCK_IO_PRIVATE *Private;\r | |
150 | \r | |
151 | Private = WIN_NT_BLOCK_IO_PRIVATE_DATA_FROM_THIS (This);\r | |
152 | \r | |
153 | Media->MediaId = 0;\r | |
154 | Media->RemovableMedia = Private->Removable;\r | |
155 | Media->MediaPresent = TRUE;\r | |
156 | Media->LogicalPartition = FALSE;\r | |
157 | Media->ReadOnly = Private->Readonly;\r | |
158 | Media->WriteCaching = FALSE;\r | |
159 | Media->IoAlign = 1;\r | |
160 | Media->LastBlock = 0; // Filled in by OpenDevice\r | |
161 | Media->BlockSize = Private->BlockSize;\r | |
162 | \r | |
163 | // EFI_BLOCK_IO_PROTOCOL_REVISION2\r | |
164 | Media->LowestAlignedLba = 0;\r | |
165 | Media->LogicalBlocksPerPhysicalBlock = 0;\r | |
166 | \r | |
167 | \r | |
168 | // EFI_BLOCK_IO_PROTOCOL_REVISION3\r | |
169 | Media->OptimalTransferLengthGranularity = 0;\r | |
170 | \r | |
171 | //\r | |
172 | // Remember the Media pointer.\r | |
173 | //\r | |
174 | Private->Media = Media;\r | |
175 | return WinNtBlockIoOpenDevice (Private, Media);\r | |
176 | }\r | |
177 | \r | |
178 | \r | |
179 | \r | |
180 | EFI_STATUS\r | |
181 | WinNtBlockIoError (\r | |
182 | IN WIN_NT_BLOCK_IO_PRIVATE *Private\r | |
183 | )\r | |
184 | /*++\r | |
185 | \r | |
186 | Routine Description:\r | |
187 | \r | |
188 | TODO: Add function description\r | |
189 | \r | |
190 | Arguments:\r | |
191 | \r | |
192 | Private - TODO: add argument description\r | |
193 | \r | |
194 | Returns:\r | |
195 | \r | |
196 | TODO: add return values\r | |
197 | \r | |
198 | --*/\r | |
199 | {\r | |
200 | EFI_BLOCK_IO_MEDIA *Media;\r | |
201 | EFI_STATUS Status;\r | |
202 | \r | |
203 | Media = Private->Media;\r | |
204 | \r | |
205 | switch (GetLastError ()) {\r | |
206 | \r | |
207 | case ERROR_NOT_READY:\r | |
208 | Media->ReadOnly = FALSE;\r | |
209 | Media->MediaPresent = FALSE;\r | |
210 | Status = EFI_NO_MEDIA;\r | |
211 | break;\r | |
212 | \r | |
213 | case ERROR_WRONG_DISK:\r | |
214 | Media->ReadOnly = FALSE;\r | |
215 | Media->MediaPresent = TRUE;\r | |
216 | Media->MediaId++;\r | |
217 | Status = EFI_MEDIA_CHANGED;\r | |
218 | break;\r | |
219 | \r | |
220 | case ERROR_WRITE_PROTECT:\r | |
221 | Media->ReadOnly = TRUE;\r | |
222 | Status = EFI_WRITE_PROTECTED;\r | |
223 | break;\r | |
224 | \r | |
225 | default:\r | |
226 | Status = EFI_DEVICE_ERROR;\r | |
227 | break;\r | |
228 | }\r | |
229 | \r | |
230 | if (Status == EFI_NO_MEDIA || Status == EFI_MEDIA_CHANGED) {\r | |
231 | WinNtBlockIoReset (&Private->EmuBlockIo, FALSE);\r | |
232 | }\r | |
233 | \r | |
234 | return Status;\r | |
235 | }\r | |
236 | \r | |
237 | \r | |
238 | EFI_STATUS\r | |
239 | WinNtSignalToken (\r | |
240 | IN OUT EFI_BLOCK_IO2_TOKEN *Token,\r | |
241 | IN EFI_STATUS Status\r | |
242 | )\r | |
243 | {\r | |
244 | if (Token != NULL) {\r | |
245 | if (Token->Event != NULL) {\r | |
246 | // Caller is responcible for signaling EFI Event\r | |
247 | Token->TransactionStatus = Status;\r | |
248 | return EFI_SUCCESS;\r | |
249 | }\r | |
250 | }\r | |
251 | return Status;\r | |
252 | }\r | |
253 | \r | |
254 | /**\r | |
255 | Read BufferSize bytes from Lba into Buffer.\r | |
256 | \r | |
257 | This function reads the requested number of blocks from the device. All the\r | |
258 | blocks are read, or an error is returned.\r | |
259 | If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_or EFI_MEDIA_CHANGED is returned and\r | |
260 | non-blocking I/O is being used, the Event associated with this request will\r | |
261 | not be signaled.\r | |
262 | \r | |
263 | @param[in] This Indicates a pointer to the calling context.\r | |
264 | @param[in] MediaId Id of the media, changes every time the media is\r | |
265 | replaced.\r | |
266 | @param[in] Lba The starting Logical Block Address to read from.\r | |
79e4f2a5 | 267 | @param[in, out] Token A pointer to the token associated with the transaction.\r |
8f819697 RN |
268 | @param[in] BufferSize Size of Buffer, must be a multiple of device block size.\r |
269 | @param[out] Buffer A pointer to the destination buffer for the data. The\r | |
270 | caller is responsible for either having implicit or\r | |
271 | explicit ownership of the buffer.\r | |
272 | \r | |
273 | @retval EFI_SUCCESS The read request was queued if Token->Event is\r | |
274 | not NULL.The data was read correctly from the\r | |
275 | device if the Token->Event is NULL.\r | |
276 | @retval EFI_DEVICE_ERROR The device reported an error while performing\r | |
277 | the read.\r | |
278 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
279 | @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r | |
280 | @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the\r | |
281 | intrinsic block size of the device.\r | |
282 | @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,\r | |
283 | or the buffer is not on proper alignment.\r | |
284 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack\r | |
285 | of resources.\r | |
286 | **/\r | |
287 | EFI_STATUS\r | |
288 | WinNtBlockIoReadBlocks (\r | |
289 | IN EMU_BLOCK_IO_PROTOCOL *This,\r | |
290 | IN UINT32 MediaId,\r | |
291 | IN EFI_LBA Lba,\r | |
292 | IN OUT EFI_BLOCK_IO2_TOKEN *Token,\r | |
293 | IN UINTN BufferSize,\r | |
294 | OUT VOID *Buffer\r | |
295 | )\r | |
296 | {\r | |
297 | WIN_NT_BLOCK_IO_PRIVATE *Private;\r | |
298 | BOOL Flag;\r | |
299 | EFI_STATUS Status;\r | |
300 | DWORD BytesRead;\r | |
301 | UINT64 DistanceToMove;\r | |
302 | UINT64 DistanceMoved;\r | |
303 | \r | |
304 | Private = WIN_NT_BLOCK_IO_PRIVATE_DATA_FROM_THIS (This);\r | |
305 | \r | |
306 | //\r | |
307 | // Seek to proper position\r | |
308 | //\r | |
309 | DistanceToMove = MultU64x32 (Lba, (UINT32)Private->BlockSize);\r | |
310 | Status = SetFilePointer64 (Private, DistanceToMove, &DistanceMoved, FILE_BEGIN);\r | |
311 | \r | |
312 | if (EFI_ERROR (Status) || (DistanceToMove != DistanceMoved)) {\r | |
313 | DEBUG ((EFI_D_INIT, "ReadBlocks: SetFilePointer failed\n"));\r | |
314 | return WinNtBlockIoError (Private->Media);\r | |
315 | }\r | |
316 | \r | |
317 | Flag = ReadFile (Private->NtHandle, Buffer, (DWORD)BufferSize, (LPDWORD)&BytesRead, NULL);\r | |
318 | if (!Flag || (BytesRead != BufferSize)) {\r | |
319 | return WinNtBlockIoError (Private->Media);\r | |
320 | }\r | |
321 | \r | |
322 | Private->Media->MediaPresent = TRUE;\r | |
323 | return WinNtSignalToken (Token, EFI_SUCCESS);\r | |
324 | }\r | |
325 | \r | |
326 | \r | |
327 | /**\r | |
328 | Write BufferSize bytes from Lba into Buffer.\r | |
329 | \r | |
330 | This function writes the requested number of blocks to the device. All blocks\r | |
331 | are written, or an error is returned.If EFI_DEVICE_ERROR, EFI_NO_MEDIA,\r | |
332 | EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED is returned and non-blocking I/O is\r | |
333 | being used, the Event associated with this request will not be signaled.\r | |
334 | \r | |
335 | @param[in] This Indicates a pointer to the calling context.\r | |
336 | @param[in] MediaId The media ID that the write request is for.\r | |
337 | @param[in] Lba The starting logical block address to be written. The\r | |
338 | caller is responsible for writing to only legitimate\r | |
339 | locations.\r | |
340 | @param[in, out] Token A pointer to the token associated with the transaction.\r | |
341 | @param[in] BufferSize Size of Buffer, must be a multiple of device block size.\r | |
342 | @param[in] Buffer A pointer to the source buffer for the data.\r | |
343 | \r | |
344 | @retval EFI_SUCCESS The write request was queued if Event is not NULL.\r | |
345 | The data was written correctly to the device if\r | |
346 | the Event is NULL.\r | |
347 | @retval EFI_WRITE_PROTECTED The device can not be written to.\r | |
348 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
3d6b7fd3 | 349 | @retval EFI_MEDIA_CHANGED The MediaId does not match the current device.\r |
8f819697 RN |
350 | @retval EFI_DEVICE_ERROR The device reported an error while performing the write.\r |
351 | @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.\r | |
352 | @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,\r | |
353 | or the buffer is not on proper alignment.\r | |
354 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack\r | |
355 | of resources.\r | |
356 | \r | |
357 | **/\r | |
358 | EFI_STATUS\r | |
359 | WinNtBlockIoWriteBlocks (\r | |
360 | IN EMU_BLOCK_IO_PROTOCOL *This,\r | |
361 | IN UINT32 MediaId,\r | |
362 | IN EFI_LBA Lba,\r | |
363 | IN OUT EFI_BLOCK_IO2_TOKEN *Token,\r | |
364 | IN UINTN BufferSize,\r | |
365 | IN VOID *Buffer\r | |
366 | )\r | |
367 | {\r | |
368 | WIN_NT_BLOCK_IO_PRIVATE *Private;\r | |
369 | UINTN BytesWritten;\r | |
370 | BOOL Success;\r | |
371 | EFI_STATUS Status;\r | |
372 | UINT64 DistanceToMove;\r | |
373 | UINT64 DistanceMoved;\r | |
374 | \r | |
375 | Private = WIN_NT_BLOCK_IO_PRIVATE_DATA_FROM_THIS (This);\r | |
376 | \r | |
377 | //\r | |
378 | // Seek to proper position\r | |
379 | //\r | |
380 | DistanceToMove = MultU64x32 (Lba, (UINT32)Private->BlockSize);\r | |
381 | Status = SetFilePointer64 (Private, DistanceToMove, &DistanceMoved, FILE_BEGIN);\r | |
382 | \r | |
383 | if (EFI_ERROR (Status) || (DistanceToMove != DistanceMoved)) {\r | |
384 | DEBUG ((EFI_D_INIT, "WriteBlocks: SetFilePointer failed\n"));\r | |
385 | return WinNtBlockIoError (Private->Media);\r | |
386 | }\r | |
387 | \r | |
388 | Success = WriteFile (Private->NtHandle, Buffer, (DWORD)BufferSize, (LPDWORD)&BytesWritten, NULL);\r | |
389 | if (!Success || (BytesWritten != BufferSize)) {\r | |
390 | return WinNtBlockIoError (Private->Media);\r | |
391 | }\r | |
392 | \r | |
393 | //\r | |
394 | // If the write succeeded, we are not write protected and media is present.\r | |
395 | //\r | |
396 | Private->Media->MediaPresent = TRUE;\r | |
397 | Private->Media->ReadOnly = FALSE;\r | |
398 | return WinNtSignalToken (Token, EFI_SUCCESS);\r | |
399 | }\r | |
400 | \r | |
401 | /**\r | |
402 | Flush the Block Device.\r | |
403 | \r | |
404 | If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED\r | |
405 | is returned and non-blocking I/O is being used, the Event associated with\r | |
406 | this request will not be signaled.\r | |
407 | \r | |
408 | @param[in] This Indicates a pointer to the calling context.\r | |
409 | @param[in,out] Token A pointer to the token associated with the transaction\r | |
410 | \r | |
411 | @retval EFI_SUCCESS The flush request was queued if Event is not NULL.\r | |
412 | All outstanding data was written correctly to the\r | |
413 | device if the Event is NULL.\r | |
3d6b7fd3 | 414 | @retval EFI_DEVICE_ERROR The device reported an error while writing back\r |
8f819697 RN |
415 | the data.\r |
416 | @retval EFI_WRITE_PROTECTED The device cannot be written to.\r | |
417 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
418 | @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r | |
419 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack\r | |
420 | of resources.\r | |
421 | \r | |
422 | **/\r | |
423 | EFI_STATUS\r | |
424 | WinNtBlockIoFlushBlocks (\r | |
425 | IN EMU_BLOCK_IO_PROTOCOL *This,\r | |
426 | IN OUT EFI_BLOCK_IO2_TOKEN *Token\r | |
427 | )\r | |
428 | {\r | |
429 | return WinNtSignalToken (Token, EFI_SUCCESS);\r | |
430 | }\r | |
431 | \r | |
432 | \r | |
433 | /**\r | |
434 | Reset the block device hardware.\r | |
435 | \r | |
436 | @param[in] This Indicates a pointer to the calling context.\r | |
437 | @param[in] ExtendedVerification Indicates that the driver may perform a more\r | |
438 | exhausive verfication operation of the device\r | |
439 | during reset.\r | |
440 | \r | |
441 | @retval EFI_SUCCESS The device was reset.\r | |
442 | @retval EFI_DEVICE_ERROR The device is not functioning properly and could\r | |
443 | not be reset.\r | |
444 | \r | |
445 | **/\r | |
446 | EFI_STATUS\r | |
447 | WinNtBlockIoReset (\r | |
448 | IN EMU_BLOCK_IO_PROTOCOL *This,\r | |
449 | IN BOOLEAN ExtendedVerification\r | |
450 | )\r | |
451 | {\r | |
452 | WIN_NT_BLOCK_IO_PRIVATE *Private;\r | |
453 | \r | |
454 | Private = WIN_NT_BLOCK_IO_PRIVATE_DATA_FROM_THIS (This);\r | |
455 | \r | |
456 | if (Private->NtHandle != INVALID_HANDLE_VALUE) {\r | |
457 | CloseHandle (Private->NtHandle);\r | |
458 | Private->NtHandle = INVALID_HANDLE_VALUE;\r | |
459 | }\r | |
460 | \r | |
461 | return EFI_SUCCESS;\r | |
462 | }\r | |
463 | \r | |
464 | EMU_BLOCK_IO_PROTOCOL gEmuBlockIoProtocol = {\r | |
465 | WinNtBlockIoReset,\r | |
466 | WinNtBlockIoReadBlocks,\r | |
467 | WinNtBlockIoWriteBlocks,\r | |
468 | WinNtBlockIoFlushBlocks,\r | |
469 | WinNtBlockIoCreateMapping\r | |
470 | };\r | |
471 | \r | |
472 | EFI_STATUS\r | |
473 | EFIAPI\r | |
474 | WinNtBlockIoThunkOpen (\r | |
475 | IN EMU_IO_THUNK_PROTOCOL *This\r | |
476 | )\r | |
477 | {\r | |
478 | WIN_NT_BLOCK_IO_PRIVATE *Private;\r | |
479 | CHAR16 *Str;\r | |
480 | \r | |
481 | Private = AllocatePool (sizeof (*Private));\r | |
482 | if (Private == NULL) {\r | |
483 | return EFI_OUT_OF_RESOURCES;\r | |
484 | }\r | |
485 | \r | |
486 | Private->Signature = WIN_NT_BLOCK_IO_PRIVATE_SIGNATURE;\r | |
487 | Private->Thunk = This;\r | |
488 | CopyMem (&Private->EmuBlockIo, &gEmuBlockIoProtocol, sizeof (gEmuBlockIoProtocol));\r | |
489 | Private->BlockSize = 512;\r | |
490 | Private->NtHandle = INVALID_HANDLE_VALUE;\r | |
491 | \r | |
492 | Private->FileName = AllocateCopyPool (StrSize (This->ConfigString), This->ConfigString);\r | |
493 | if (Private->FileName == NULL) {\r | |
494 | return EFI_OUT_OF_RESOURCES;\r | |
495 | }\r | |
496 | //\r | |
497 | // Parse ConfigString\r | |
498 | // <ConfigString> := <FileName> ':' [RF][OW] ':' <BlockSize>\r | |
499 | //\r | |
500 | Str = StrStr (Private->FileName, L":");\r | |
501 | if (Str == NULL) {\r | |
502 | Private->Removable = FALSE;\r | |
503 | Private->Readonly = FALSE;\r | |
504 | } else {\r | |
505 | for (*Str++ = L'\0'; *Str != L'\0'; Str++) {\r | |
506 | if (*Str == 'R' || *Str == 'F') {\r | |
507 | Private->Removable = (BOOLEAN) (*Str == L'R');\r | |
508 | }\r | |
509 | if (*Str == 'O' || *Str == 'W') {\r | |
510 | Private->Readonly = (BOOLEAN) (*Str == L'O');\r | |
511 | }\r | |
512 | if (*Str == ':') {\r | |
513 | Private->BlockSize = wcstol (++Str, NULL, 0);\r | |
514 | break;\r | |
515 | }\r | |
516 | }\r | |
517 | }\r | |
518 | \r | |
519 | This->Interface = &Private->EmuBlockIo;\r | |
520 | This->Private = Private;\r | |
521 | return EFI_SUCCESS;\r | |
522 | }\r | |
523 | \r | |
524 | \r | |
525 | EFI_STATUS\r | |
526 | EFIAPI\r | |
527 | WinNtBlockIoThunkClose (\r | |
528 | IN EMU_IO_THUNK_PROTOCOL *This\r | |
529 | )\r | |
530 | {\r | |
531 | WIN_NT_BLOCK_IO_PRIVATE *Private;\r | |
532 | \r | |
533 | Private = This->Private;\r | |
534 | \r | |
535 | if (Private != NULL) {\r | |
536 | if (Private->FileName != NULL) {\r | |
537 | FreePool (Private->FileName);\r | |
538 | }\r | |
539 | FreePool (Private);\r | |
540 | }\r | |
541 | \r | |
542 | return EFI_SUCCESS;\r | |
543 | }\r | |
544 | \r | |
545 | \r | |
546 | \r | |
547 | EMU_IO_THUNK_PROTOCOL mWinNtBlockIoThunkIo = {\r | |
548 | &gEmuBlockIoProtocolGuid,\r | |
549 | NULL,\r | |
550 | NULL,\r | |
551 | 0,\r | |
552 | WinNtBlockIoThunkOpen,\r | |
553 | WinNtBlockIoThunkClose,\r | |
554 | NULL\r | |
555 | };\r | |
556 | \r | |
557 | \r |