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93e3992d | 1 | /** @file\r |
2 | \r | |
36fe40c2 | 3 | Copyright (c) 2007 - 2008, Intel Corporation\r |
93e3992d | 4 | All rights reserved. This program and the accompanying materials\r |
5 | are licensed and made available under the terms and conditions of the BSD License\r | |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | ConfigRouting.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | Implementation for EFI_HII_CONFIG_ROUTING_PROTOCOL.\r | |
19 | \r | |
20 | Revision History\r | |
21 | \r | |
22 | \r | |
23 | **/\r | |
24 | \r | |
25 | \r | |
26 | #include "HiiDatabase.h"\r | |
27 | \r | |
93e3992d | 28 | /**\r |
29 | Calculate the number of Unicode characters of the incoming Configuration string,\r | |
30 | not including NULL terminator.\r | |
31 | \r | |
e90b081a | 32 | This is a internal function.\r |
33 | \r | |
93e3992d | 34 | @param String String in <MultiConfigRequest> or\r |
35 | <MultiConfigResp> format.\r | |
36 | \r | |
37 | @return The number of Unicode characters.\r | |
38 | \r | |
39 | **/\r | |
93e3992d | 40 | UINTN\r |
41 | CalculateConfigStringLen (\r | |
42 | IN EFI_STRING String\r | |
43 | )\r | |
44 | {\r | |
45 | UINTN Length;\r | |
46 | \r | |
47 | //\r | |
48 | // "GUID=" should be the first element of incoming string.\r | |
49 | //\r | |
50 | ASSERT (String != NULL);\r | |
51 | ASSERT (StrnCmp (String, L"GUID=", StrLen (L"GUID=")) == 0);\r | |
52 | \r | |
53 | Length = StrLen (L"GUID=");\r | |
54 | String += Length;\r | |
55 | \r | |
56 | //\r | |
57 | // The beginning of next <ConfigRequest>/<ConfigResp> should be "&GUID=".\r | |
58 | // Will meet '\0' if there is only one <ConfigRequest>/<ConfigResp>.\r | |
59 | //\r | |
60 | while (*String != 0 && StrnCmp (String, L"&GUID=", StrLen (L"&GUID=")) != 0) {\r | |
61 | Length++;\r | |
62 | String++;\r | |
63 | }\r | |
64 | \r | |
65 | return Length;\r | |
66 | }\r | |
67 | \r | |
68 | \r | |
69 | /**\r | |
70 | Convert the hex UNICODE %02x encoding of a UEFI device path to binary\r | |
71 | from <PathHdr> of <ConfigHdr>.\r | |
72 | \r | |
e90b081a | 73 | This is a internal function.\r |
74 | \r | |
93e3992d | 75 | @param String UEFI configuration string\r |
76 | @param DevicePath binary of a UEFI device path.\r | |
77 | \r | |
78 | @retval EFI_INVALID_PARAMETER Any incoming parameter is invalid.\r | |
79 | @retval EFI_OUT_OF_RESOURCES Lake of resources to store neccesary structures.\r | |
80 | @retval EFI_SUCCESS The device path is retrieved and translated to\r | |
81 | binary format.\r | |
82 | \r | |
83 | **/\r | |
93e3992d | 84 | EFI_STATUS\r |
85 | GetDevicePath (\r | |
86 | IN EFI_STRING String,\r | |
87 | OUT UINT8 **DevicePath\r | |
88 | )\r | |
89 | {\r | |
90 | UINTN Length;\r | |
91 | EFI_STRING PathHdr;\r | |
92 | EFI_STRING DevicePathString;\r | |
93 | \r | |
94 | if (String == NULL || DevicePath == NULL) {\r | |
95 | return EFI_INVALID_PARAMETER;\r | |
96 | }\r | |
97 | \r | |
98 | //\r | |
99 | // Find the 'PATH=' of <PathHdr> and skip it.\r | |
100 | //\r | |
101 | for (; (*String != 0 && StrnCmp (String, L"PATH=", StrLen (L"PATH=")) != 0); String++);\r | |
102 | if (*String == 0) {\r | |
103 | return EFI_INVALID_PARAMETER;\r | |
104 | }\r | |
105 | \r | |
106 | String += StrLen (L"PATH=");\r | |
107 | PathHdr = String;\r | |
108 | \r | |
109 | //\r | |
110 | // The content between 'PATH=' of <ConfigHdr> and '&' of next element\r | |
111 | // or '\0' (end of configuration string) is the UNICODE %02x bytes encoding\r | |
112 | // of UEFI device path.\r | |
113 | //\r | |
114 | for (Length = 0; *String != 0 && *String != L'&'; String++, Length++);\r | |
115 | DevicePathString = (EFI_STRING) AllocateZeroPool ((Length + 1) * sizeof (CHAR16));\r | |
116 | if (DevicePathString == NULL) {\r | |
117 | return EFI_OUT_OF_RESOURCES;\r | |
118 | }\r | |
119 | StrnCpy (DevicePathString, PathHdr, Length);\r | |
120 | *(DevicePathString + Length) = 0;\r | |
121 | \r | |
122 | //\r | |
123 | // The data in <PathHdr> is encoded as hex UNICODE %02x bytes in the same order\r | |
124 | // as the device path resides in RAM memory.\r | |
125 | // Translate the data into binary.\r | |
93e3992d | 126 | //\r |
127 | Length /= 2;\r | |
128 | *DevicePath = (UINT8 *) AllocateZeroPool (Length);\r | |
129 | if (*DevicePath == NULL) {\r | |
130 | SafeFreePool (DevicePathString);\r | |
131 | return EFI_OUT_OF_RESOURCES;\r | |
132 | }\r | |
133 | \r | |
813acf3a | 134 | HexStringToBuffer (*DevicePath, &Length, DevicePathString);\r |
93e3992d | 135 | \r |
136 | SafeFreePool (DevicePathString);\r | |
137 | \r | |
138 | return EFI_SUCCESS;\r | |
139 | \r | |
140 | }\r | |
141 | \r | |
142 | \r | |
143 | /**\r | |
144 | Extract Storage from all Form Packages in current hii database.\r | |
145 | \r | |
e90b081a | 146 | This is a internal function.\r |
147 | \r | |
93e3992d | 148 | @param HiiDatabase EFI_HII_DATABASE_PROTOCOL instance.\r |
149 | @param StorageListHead Storage link List head.\r | |
150 | \r | |
151 | @retval EFI_NOT_FOUND There is no form package in current hii database.\r | |
152 | @retval EFI_INVALID_PARAMETER Any parameter is invalid.\r | |
153 | @retval EFI_SUCCESS All existing storage is exported.\r | |
154 | \r | |
155 | **/\r | |
93e3992d | 156 | EFI_STATUS\r |
157 | ExportAllStorage (\r | |
158 | IN EFI_HII_DATABASE_PROTOCOL *HiiDatabase,\r | |
159 | IN OUT LIST_ENTRY *StorageListHead\r | |
160 | )\r | |
161 | {\r | |
162 | EFI_STATUS Status;\r | |
163 | UINTN BufferSize;\r | |
164 | UINTN HandleCount;\r | |
165 | EFI_HII_HANDLE *HandleBuffer;\r | |
166 | UINTN Index;\r | |
167 | UINTN Index2;\r | |
168 | EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;\r | |
169 | EFI_HII_PACKAGE_HEADER *Package;\r | |
170 | UINT8 *OpCodeData;\r | |
171 | UINT8 Operand;\r | |
172 | UINT32 Offset;\r | |
173 | HII_FORMSET_STORAGE *Storage;\r | |
174 | EFI_HII_HANDLE HiiHandle;\r | |
175 | EFI_HANDLE DriverHandle;\r | |
176 | CHAR8 *AsciiString;\r | |
177 | UINT32 PackageListLength;\r | |
178 | EFI_HII_PACKAGE_HEADER PackageHeader;\r | |
179 | \r | |
180 | //\r | |
181 | // Find the package list which contains Form package.\r | |
182 | //\r | |
183 | BufferSize = 0;\r | |
184 | HandleBuffer = NULL;\r | |
185 | Status = HiiListPackageLists (\r | |
186 | HiiDatabase,\r | |
187 | EFI_HII_PACKAGE_FORM,\r | |
188 | NULL,\r | |
189 | &BufferSize,\r | |
190 | HandleBuffer\r | |
191 | );\r | |
192 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
193 | HandleBuffer = AllocateZeroPool (BufferSize);\r | |
194 | ASSERT (HandleBuffer != NULL);\r | |
195 | \r | |
196 | Status = HiiListPackageLists (\r | |
197 | HiiDatabase,\r | |
198 | EFI_HII_PACKAGE_FORM,\r | |
199 | NULL,\r | |
200 | &BufferSize,\r | |
201 | HandleBuffer\r | |
202 | );\r | |
203 | }\r | |
204 | if (EFI_ERROR (Status)) {\r | |
205 | SafeFreePool (HandleBuffer);\r | |
206 | return Status;\r | |
207 | }\r | |
208 | \r | |
209 | HandleCount = BufferSize / sizeof (EFI_HII_HANDLE);\r | |
210 | for (Index = 0; Index < HandleCount; Index++) {\r | |
211 | HiiHandle = HandleBuffer[Index];\r | |
212 | \r | |
213 | BufferSize = 0;\r | |
214 | HiiPackageList = NULL;\r | |
215 | Status = HiiExportPackageLists (HiiDatabase, HiiHandle, &BufferSize, HiiPackageList);\r | |
216 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
217 | HiiPackageList = AllocateZeroPool (BufferSize);\r | |
218 | ASSERT (HiiPackageList != NULL);\r | |
219 | Status = HiiExportPackageLists (HiiDatabase, HiiHandle, &BufferSize, HiiPackageList);\r | |
220 | }\r | |
221 | if (EFI_ERROR (Status)) {\r | |
222 | SafeFreePool (HandleBuffer);\r | |
223 | SafeFreePool (HiiPackageList);\r | |
224 | return Status;\r | |
225 | }\r | |
226 | \r | |
227 | //\r | |
228 | // Get Form package from this HII package List\r | |
229 | //\r | |
230 | Offset = sizeof (EFI_HII_PACKAGE_LIST_HEADER);\r | |
231 | CopyMem (&PackageListLength, &HiiPackageList->PackageLength, sizeof (UINT32));\r | |
232 | Package = NULL;\r | |
233 | ZeroMem (&PackageHeader, sizeof (EFI_HII_PACKAGE_HEADER));\r | |
234 | \r | |
235 | while (Offset < PackageListLength) {\r | |
236 | Package = (EFI_HII_PACKAGE_HEADER *) (((UINT8 *) HiiPackageList) + Offset);\r | |
237 | CopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER));\r | |
238 | if (PackageHeader.Type == EFI_HII_PACKAGE_FORM) {\r | |
239 | break;\r | |
240 | }\r | |
241 | Offset += PackageHeader.Length;\r | |
242 | }\r | |
243 | if (Offset >= PackageListLength) {\r | |
244 | //\r | |
245 | // Error here: No Form package found in this Package List\r | |
246 | //\r | |
247 | ASSERT (FALSE);\r | |
248 | }\r | |
249 | \r | |
250 | //\r | |
251 | // Search Storage definition in this Form package\r | |
252 | //\r | |
253 | Offset = sizeof (EFI_HII_PACKAGE_HEADER);\r | |
254 | while (Offset < PackageHeader.Length) {\r | |
255 | OpCodeData = ((UINT8 *) Package) + Offset;\r | |
256 | Offset += ((EFI_IFR_OP_HEADER *) OpCodeData)->Length;\r | |
257 | \r | |
258 | Operand = ((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode;\r | |
259 | \r | |
260 | if ((Operand == EFI_IFR_VARSTORE_OP) ||\r | |
261 | (Operand == EFI_IFR_VARSTORE_NAME_VALUE_OP) ||\r | |
262 | (Operand == EFI_IFR_VARSTORE_EFI_OP)) {\r | |
263 | \r | |
264 | Storage = AllocateZeroPool (sizeof (HII_FORMSET_STORAGE));\r | |
265 | ASSERT (Storage != NULL);\r | |
266 | InsertTailList (StorageListHead, &Storage->Entry);\r | |
267 | \r | |
268 | Storage->Signature = HII_FORMSET_STORAGE_SIGNATURE;\r | |
269 | Storage->HiiHandle = HiiHandle;\r | |
270 | \r | |
271 | Status = HiiGetPackageListHandle (HiiDatabase, HiiHandle, &DriverHandle);\r | |
272 | if (EFI_ERROR (Status)) {\r | |
273 | SafeFreePool (HandleBuffer);\r | |
274 | SafeFreePool (HiiPackageList);\r | |
275 | SafeFreePool (Storage);\r | |
276 | return Status;\r | |
277 | }\r | |
278 | Storage->DriverHandle = DriverHandle;\r | |
279 | \r | |
280 | if (Operand == EFI_IFR_VARSTORE_OP) {\r | |
281 | Storage->Type = EFI_HII_VARSTORE_BUFFER;\r | |
282 | \r | |
283 | CopyMem (&Storage->Guid, &((EFI_IFR_VARSTORE *) OpCodeData)->Guid, sizeof (EFI_GUID));\r | |
284 | CopyMem (&Storage->Size, &((EFI_IFR_VARSTORE *) OpCodeData)->Size, sizeof (UINT16));\r | |
285 | \r | |
286 | AsciiString = (CHAR8 *) ((EFI_IFR_VARSTORE *) OpCodeData)->Name;\r | |
287 | Storage->Name = AllocateZeroPool (AsciiStrSize (AsciiString) * 2);\r | |
288 | ASSERT (Storage->Name != NULL);\r | |
289 | for (Index2 = 0; AsciiString[Index2] != 0; Index2++) {\r | |
290 | Storage->Name[Index2] = (CHAR16) AsciiString[Index2];\r | |
291 | }\r | |
292 | //\r | |
293 | // Append '\0' to the end of the unicode string.\r | |
294 | //\r | |
295 | Storage->Name[Index2] = 0;\r | |
296 | } else if (Operand == EFI_IFR_VARSTORE_NAME_VALUE_OP) {\r | |
297 | Storage->Type = EFI_HII_VARSTORE_NAME_VALUE;\r | |
298 | \r | |
299 | CopyMem (&Storage->Guid, &((EFI_IFR_VARSTORE_NAME_VALUE *) OpCodeData)->Guid, sizeof (EFI_GUID));\r | |
300 | } else if (Operand == EFI_IFR_VARSTORE_EFI_OP) {\r | |
301 | Storage->Type = EFI_HII_VARSTORE_EFI_VARIABLE;\r | |
302 | \r | |
303 | CopyMem (&Storage->Guid, &((EFI_IFR_VARSTORE_EFI *) OpCodeData)->Guid, sizeof (EFI_GUID));\r | |
304 | }\r | |
305 | }\r | |
306 | }\r | |
307 | \r | |
308 | SafeFreePool (HiiPackageList);\r | |
309 | }\r | |
310 | \r | |
311 | SafeFreePool (HandleBuffer);\r | |
312 | \r | |
313 | return EFI_SUCCESS;\r | |
314 | }\r | |
315 | \r | |
316 | \r | |
317 | /**\r | |
318 | Generate a sub string then output it.\r | |
319 | \r | |
e90b081a | 320 | This is a internal function.\r |
321 | \r | |
93e3992d | 322 | @param String A constant string which is the prefix of the to be\r |
323 | generated string, e.g. GUID=\r | |
324 | @param BufferLen The length of the Buffer in bytes.\r | |
813acf3a | 325 | @param Buffer Points to a buffer which will be converted to be the \r |
326 | content of the generated string.\r | |
327 | @param Flag If 1, the buffer contains data for the value of GUID or PATH stored in \r | |
328 | UINT8 *; if 2, the buffer contains unicode string for the value of NAME;\r | |
329 | if 3, the buffer contains other data.\r | |
93e3992d | 330 | @param SubStr Points to the output string. It's caller's\r |
331 | responsibility to free this buffer.\r | |
332 | \r | |
333 | \r | |
334 | **/\r | |
93e3992d | 335 | VOID\r |
336 | GenerateSubStr (\r | |
337 | IN CONST EFI_STRING String,\r | |
338 | IN UINTN BufferLen,\r | |
813acf3a | 339 | IN VOID *Buffer,\r |
340 | IN UINT8 Flag,\r | |
93e3992d | 341 | OUT EFI_STRING *SubStr\r |
342 | )\r | |
343 | {\r | |
344 | UINTN Length;\r | |
345 | EFI_STRING Str;\r | |
346 | EFI_STATUS Status;\r | |
813acf3a | 347 | EFI_STRING StringHeader;\r |
93e3992d | 348 | \r |
349 | ASSERT (String != NULL && SubStr != NULL);\r | |
350 | \r | |
351 | if (Buffer == NULL) {\r | |
352 | *SubStr = AllocateCopyPool (StrSize (String), String);\r | |
353 | ASSERT (*SubStr != NULL);\r | |
354 | return ;\r | |
355 | }\r | |
356 | \r | |
813acf3a | 357 | Length = StrLen (String) + BufferLen * 2 + 1 + 1;\r |
93e3992d | 358 | Str = AllocateZeroPool (Length * sizeof (CHAR16));\r |
359 | ASSERT (Str != NULL);\r | |
360 | \r | |
361 | StrCpy (Str, String);\r | |
362 | Length = (BufferLen * 2 + 1) * sizeof (CHAR16);\r | |
363 | \r | |
813acf3a | 364 | Status = EFI_SUCCESS;\r |
365 | StringHeader = Str + StrLen (String);\r | |
366 | \r | |
367 | switch (Flag) {\r | |
368 | case 1:\r | |
369 | Status = BufferToHexString (StringHeader, (UINT8 *) Buffer, BufferLen);\r | |
370 | break;\r | |
371 | case 2:\r | |
372 | Status = UnicodeToConfigString (StringHeader, &Length, (CHAR16 *) Buffer);\r | |
373 | break;\r | |
374 | case 3:\r | |
375 | Status = BufToHexString (StringHeader, &Length, (UINT8 *) Buffer, BufferLen);\r | |
376 | //\r | |
377 | // Convert the uppercase to lowercase since <HexAf> is defined in lowercase format.\r | |
378 | //\r | |
379 | ToLower (StringHeader);\r | |
380 | break;\r | |
381 | default:\r | |
382 | break;\r | |
383 | }\r | |
93e3992d | 384 | \r |
385 | ASSERT_EFI_ERROR (Status);\r | |
386 | StrCat (Str, L"&");\r | |
387 | \r | |
388 | *SubStr = Str;\r | |
389 | }\r | |
390 | \r | |
391 | \r | |
392 | /**\r | |
393 | Retrieve the <ConfigBody> from String then output it.\r | |
394 | \r | |
e90b081a | 395 | This is a internal function.\r |
396 | \r | |
93e3992d | 397 | @param String A sub string of a configuration string in\r |
398 | <MultiConfigAltResp> format.\r | |
399 | @param ConfigBody Points to the output string. It's caller's\r | |
400 | responsibility to free this buffer.\r | |
401 | \r | |
402 | @retval EFI_INVALID_PARAMETER There is no form package in current hii database.\r | |
403 | @retval EFI_OUT_OF_RESOURCES Not enough memory to finish this operation.\r | |
404 | @retval EFI_SUCCESS All existing storage is exported.\r | |
405 | \r | |
406 | **/\r | |
93e3992d | 407 | EFI_STATUS\r |
408 | OutputConfigBody (\r | |
409 | IN EFI_STRING String,\r | |
410 | OUT EFI_STRING *ConfigBody\r | |
411 | )\r | |
412 | {\r | |
413 | EFI_STRING TmpPtr;\r | |
414 | EFI_STRING Result;\r | |
415 | UINTN Length;\r | |
416 | \r | |
417 | if (String == NULL || ConfigBody == NULL) {\r | |
418 | return EFI_INVALID_PARAMETER;\r | |
419 | }\r | |
420 | \r | |
421 | TmpPtr = StrStr (String, L"GUID=");\r | |
422 | if (TmpPtr == NULL) {\r | |
423 | //\r | |
424 | // It is the last <ConfigResp> of the incoming configuration string.\r | |
425 | //\r | |
426 | Result = AllocateCopyPool (StrSize (String), String);\r | |
427 | if (Result == NULL) {\r | |
428 | return EFI_OUT_OF_RESOURCES;\r | |
429 | } else {\r | |
430 | *ConfigBody = Result;\r | |
431 | return EFI_SUCCESS;\r | |
432 | }\r | |
433 | }\r | |
434 | \r | |
435 | Length = TmpPtr - String;\r | |
436 | Result = AllocateCopyPool (Length * sizeof (CHAR16), String);\r | |
437 | if (Result == NULL) {\r | |
438 | return EFI_OUT_OF_RESOURCES;\r | |
439 | }\r | |
440 | \r | |
441 | *(Result + Length - 1) = 0;\r | |
442 | *ConfigBody = Result;\r | |
443 | return EFI_SUCCESS;\r | |
444 | \r | |
445 | }\r | |
446 | \r | |
447 | \r | |
e90b081a | 448 | /**\r |
449 | Adjusts the size of a previously allocated buffer.\r | |
450 | \r | |
451 | \r | |
452 | @param OldPool A pointer to the buffer whose size is being adjusted.\r | |
453 | @param OldSize The size of the current buffer.\r | |
454 | @param NewSize The size of the new buffer.\r | |
455 | \r | |
456 | @return The new buffer allocated.\r | |
457 | \r | |
458 | **/\r | |
93e3992d | 459 | VOID *\r |
460 | ReallocatePool (\r | |
461 | IN VOID *OldPool,\r | |
462 | IN UINTN OldSize,\r | |
463 | IN UINTN NewSize\r | |
464 | )\r | |
93e3992d | 465 | {\r |
466 | VOID *NewPool;\r | |
467 | \r | |
468 | NewPool = NULL;\r | |
e90b081a | 469 | if (NewSize != 0) {\r |
93e3992d | 470 | NewPool = AllocateZeroPool (NewSize);\r |
471 | }\r | |
472 | \r | |
e90b081a | 473 | if (OldPool != NULL) {\r |
474 | if (NewPool != NULL) {\r | |
93e3992d | 475 | CopyMem (NewPool, OldPool, OldSize < NewSize ? OldSize : NewSize);\r |
476 | }\r | |
477 | \r | |
478 | gBS->FreePool (OldPool);\r | |
479 | }\r | |
480 | \r | |
481 | return NewPool;\r | |
482 | }\r | |
483 | \r | |
484 | \r | |
485 | /**\r | |
486 | Append a string to a multi-string format.\r | |
487 | \r | |
e90b081a | 488 | This is a internal function.\r |
489 | \r | |
93e3992d | 490 | @param MultiString String in <MultiConfigRequest>,\r |
491 | <MultiConfigAltResp>, or <MultiConfigResp>. On\r | |
492 | input, the buffer length of this string is\r | |
493 | MAX_STRING_LENGTH. On output, the buffer length\r | |
494 | might be updated.\r | |
495 | @param AppendString NULL-terminated Unicode string.\r | |
496 | \r | |
497 | @retval EFI_INVALID_PARAMETER Any incoming parameter is invalid.\r | |
498 | @retval EFI_SUCCESS AppendString is append to the end of MultiString\r | |
499 | \r | |
500 | **/\r | |
93e3992d | 501 | EFI_STATUS\r |
502 | AppendToMultiString (\r | |
503 | IN OUT EFI_STRING *MultiString,\r | |
504 | IN EFI_STRING AppendString\r | |
505 | )\r | |
506 | {\r | |
507 | UINTN AppendStringSize;\r | |
508 | UINTN MultiStringSize;\r | |
509 | \r | |
510 | if (MultiString == NULL || *MultiString == NULL || AppendString == NULL) {\r | |
511 | return EFI_INVALID_PARAMETER;\r | |
512 | }\r | |
513 | \r | |
514 | AppendStringSize = StrSize (AppendString);\r | |
515 | MultiStringSize = StrSize (*MultiString);\r | |
516 | \r | |
517 | //\r | |
518 | // Enlarge the buffer each time when length exceeds MAX_STRING_LENGTH.\r | |
519 | //\r | |
520 | if (MultiStringSize + AppendStringSize > MAX_STRING_LENGTH ||\r | |
521 | MultiStringSize > MAX_STRING_LENGTH) {\r | |
522 | *MultiString = (EFI_STRING) ReallocatePool (\r | |
523 | (VOID *) (*MultiString),\r | |
524 | MultiStringSize,\r | |
525 | MultiStringSize + AppendStringSize\r | |
526 | );\r | |
527 | }\r | |
528 | \r | |
529 | //\r | |
530 | // Append the incoming string\r | |
531 | //\r | |
532 | StrCat (*MultiString, AppendString);\r | |
533 | \r | |
534 | return EFI_SUCCESS;\r | |
535 | }\r | |
536 | \r | |
537 | \r | |
538 | /**\r | |
539 | Get the value of <Number> in <BlockConfig> format, i.e. the value of OFFSET\r | |
540 | or WIDTH or VALUE.\r | |
541 | <BlockConfig> ::= 'OFFSET='<Number>&'WIDTH='<Number>&'VALUE'=<Number>\r | |
542 | \r | |
e90b081a | 543 | This is a internal function.\r |
544 | \r | |
93e3992d | 545 | @param StringPtr String in <BlockConfig> format and points to the\r |
546 | first character of <Number>.\r | |
547 | @param Number The output value. Caller takes the responsibility\r | |
548 | to free memory.\r | |
549 | @param Len Length of the <Number>, in characters.\r | |
550 | \r | |
551 | @retval EFI_OUT_OF_RESOURCES Insufficient resources to store neccessary\r | |
552 | structures.\r | |
553 | @retval EFI_SUCCESS Value of <Number> is outputted in Number\r | |
554 | successfully.\r | |
555 | \r | |
556 | **/\r | |
93e3992d | 557 | EFI_STATUS\r |
558 | GetValueOfNumber (\r | |
559 | IN EFI_STRING StringPtr,\r | |
560 | OUT UINT8 **Number,\r | |
561 | OUT UINTN *Len\r | |
562 | )\r | |
563 | {\r | |
564 | EFI_STRING TmpPtr;\r | |
565 | UINTN Length;\r | |
566 | EFI_STRING Str;\r | |
567 | UINT8 *Buf;\r | |
568 | EFI_STATUS Status;\r | |
569 | \r | |
570 | ASSERT (StringPtr != NULL && Number != NULL && Len != NULL);\r | |
571 | ASSERT (*StringPtr != 0);\r | |
572 | \r | |
573 | Buf = NULL;\r | |
574 | \r | |
575 | TmpPtr = StringPtr;\r | |
576 | while (*StringPtr != 0 && *StringPtr != L'&') {\r | |
577 | StringPtr++;\r | |
578 | }\r | |
579 | *Len = StringPtr - TmpPtr;\r | |
580 | Length = *Len + 1;\r | |
581 | \r | |
582 | Str = (EFI_STRING) AllocateZeroPool (Length * sizeof (EFI_STRING));\r | |
583 | if (Str == NULL) {\r | |
584 | Status = EFI_OUT_OF_RESOURCES;\r | |
585 | goto Exit;\r | |
586 | }\r | |
587 | CopyMem (Str, TmpPtr, *Len * sizeof (CHAR16));\r | |
588 | *(Str + *Len) = 0;\r | |
589 | \r | |
590 | Length = (Length + 1) / 2;\r | |
591 | Buf = (UINT8 *) AllocateZeroPool (Length);\r | |
592 | if (Buf == NULL) {\r | |
593 | Status = EFI_OUT_OF_RESOURCES;\r | |
594 | goto Exit;\r | |
595 | }\r | |
596 | \r | |
36fe40c2 | 597 | Status = HexStringToBuf (Buf, &Length, Str, NULL);\r |
93e3992d | 598 | if (EFI_ERROR (Status)) {\r |
599 | goto Exit;\r | |
600 | }\r | |
601 | \r | |
602 | *Number = Buf;\r | |
603 | Status = EFI_SUCCESS;\r | |
604 | \r | |
605 | Exit:\r | |
606 | SafeFreePool (Str);\r | |
607 | return Status;\r | |
608 | }\r | |
609 | \r | |
610 | \r | |
611 | /**\r | |
612 | This function allows a caller to extract the current configuration\r | |
613 | for one or more named elements from one or more drivers.\r | |
614 | \r | |
615 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
616 | instance.\r | |
617 | @param Request A null-terminated Unicode string in\r | |
618 | <MultiConfigRequest> format.\r | |
619 | @param Progress On return, points to a character in the Request\r | |
620 | string. Points to the string's null terminator if\r | |
621 | request was successful. Points to the most recent\r | |
622 | & before the first failing name / value pair (or\r | |
623 | the beginning of the string if the failure is in\r | |
624 | the first name / value pair) if the request was\r | |
625 | not successful.\r | |
626 | @param Results Null-terminated Unicode string in\r | |
627 | <MultiConfigAltResp> format which has all values\r | |
628 | filled in for the names in the Request string.\r | |
629 | String to be allocated by the called function.\r | |
630 | \r | |
631 | @retval EFI_SUCCESS The Results string is filled with the values\r | |
632 | corresponding to all requested names.\r | |
633 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
634 | results that must be stored awaiting possible\r | |
635 | future protocols.\r | |
636 | @retval EFI_NOT_FOUND Routing data doesn't match any known driver.\r | |
637 | Progress set to the "G" in "GUID" of the routing\r | |
638 | header that doesn't match. Note: There is no\r | |
639 | requirement that all routing data be validated\r | |
640 | before any configuration extraction.\r | |
641 | @retval EFI_INVALID_PARAMETER For example, passing in a NULL for the Request\r | |
642 | parameter would result in this type of error. The\r | |
643 | Progress parameter is set to NULL.\r | |
644 | @retval EFI_INVALID_PARAMETER Illegal syntax. Progress set to most recent &\r | |
645 | before the error or the beginning of the string.\r | |
646 | @retval EFI_INVALID_PARAMETER Unknown name. Progress points to the & before the\r | |
647 | name in question.\r | |
648 | \r | |
649 | **/\r | |
650 | EFI_STATUS\r | |
651 | EFIAPI\r | |
652 | HiiConfigRoutingExtractConfig (\r | |
653 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
654 | IN CONST EFI_STRING Request,\r | |
655 | OUT EFI_STRING *Progress,\r | |
656 | OUT EFI_STRING *Results\r | |
657 | )\r | |
658 | {\r | |
93e3992d | 659 | HII_DATABASE_PRIVATE_DATA *Private;\r |
660 | EFI_STRING StringPtr;\r | |
661 | EFI_STRING ConfigRequest;\r | |
662 | UINTN Length;\r | |
663 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
664 | EFI_STATUS Status;\r | |
665 | LIST_ENTRY *Link;\r | |
666 | HII_DATABASE_RECORD *Database;\r | |
667 | UINT8 *CurrentDevicePath;\r | |
668 | EFI_HANDLE DriverHandle;\r | |
669 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
670 | EFI_STRING AccessProgress;\r | |
671 | EFI_STRING AccessResults;\r | |
672 | UINTN RemainSize;\r | |
673 | EFI_STRING TmpPtr;\r | |
674 | \r | |
e94358a3 | 675 | //\r |
676 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
677 | // as FALSE. But this renders the system to not 100% compliant with\r | |
678 | // UEFI 2.1. Use this with caution.\r | |
679 | //\r | |
680 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
681 | return EFI_UNSUPPORTED;\r | |
682 | }\r | |
683 | \r | |
93e3992d | 684 | if (This == NULL || Progress == NULL || Results == NULL) {\r |
685 | return EFI_INVALID_PARAMETER;\r | |
686 | }\r | |
687 | \r | |
688 | if (Request == NULL) {\r | |
689 | *Progress = NULL;\r | |
690 | return EFI_INVALID_PARAMETER;\r | |
691 | }\r | |
692 | \r | |
693 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
694 | StringPtr = Request;\r | |
695 | *Progress = StringPtr;\r | |
696 | \r | |
697 | //\r | |
698 | // The first element of <MultiConfigRequest> should be\r | |
699 | // <GuidHdr>, which is in 'GUID='<Guid> syntax.\r | |
700 | //\r | |
701 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
702 | return EFI_INVALID_PARAMETER;\r | |
703 | }\r | |
704 | \r | |
705 | //\r | |
706 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
707 | // Results if this fix length is insufficient.\r | |
708 | //\r | |
709 | *Results = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
710 | if (*Results == NULL) {\r | |
711 | return EFI_OUT_OF_RESOURCES;\r | |
712 | }\r | |
713 | \r | |
714 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) == 0) {\r | |
715 | //\r | |
716 | // If parsing error, set Progress to the beginning of the <MultiConfigRequest>\r | |
717 | // or most recent & before the error.\r | |
718 | //\r | |
719 | if (StringPtr == Request) {\r | |
720 | *Progress = StringPtr;\r | |
721 | } else {\r | |
722 | *Progress = StringPtr - 1;\r | |
723 | }\r | |
724 | \r | |
725 | //\r | |
726 | // Process each <ConfigRequest> of <MultiConfigRequest>\r | |
727 | //\r | |
728 | Length = CalculateConfigStringLen (StringPtr);\r | |
729 | ConfigRequest = AllocateCopyPool ((Length + 1) * sizeof (CHAR16), StringPtr);\r | |
730 | if (ConfigRequest == NULL) {\r | |
731 | return EFI_OUT_OF_RESOURCES;\r | |
732 | }\r | |
733 | *(ConfigRequest + Length) = 0;\r | |
734 | \r | |
735 | //\r | |
736 | // Get the UEFI device path\r | |
737 | //\r | |
738 | Status = GetDevicePath (ConfigRequest, (UINT8 **) &DevicePath);\r | |
739 | if (EFI_ERROR (Status)) {\r | |
740 | SafeFreePool (ConfigRequest);\r | |
741 | return Status;\r | |
742 | }\r | |
743 | \r | |
744 | //\r | |
745 | // Find driver which matches the routing data.\r | |
746 | //\r | |
747 | DriverHandle = NULL;\r | |
748 | for (Link = Private->DatabaseList.ForwardLink;\r | |
749 | Link != &Private->DatabaseList;\r | |
750 | Link = Link->ForwardLink\r | |
751 | ) {\r | |
752 | Database = CR (Link, HII_DATABASE_RECORD, DatabaseEntry, HII_DATABASE_RECORD_SIGNATURE);\r | |
753 | CurrentDevicePath = Database->PackageList->DevicePathPkg + sizeof (EFI_HII_PACKAGE_HEADER);\r | |
754 | if (CurrentDevicePath != NULL) {\r | |
755 | if (CompareMem (\r | |
756 | DevicePath,\r | |
757 | CurrentDevicePath,\r | |
758 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) CurrentDevicePath)\r | |
759 | ) == 0) {\r | |
760 | DriverHandle = Database->DriverHandle;\r | |
761 | break;\r | |
762 | }\r | |
763 | }\r | |
764 | }\r | |
765 | \r | |
766 | SafeFreePool (DevicePath);\r | |
767 | \r | |
768 | if (DriverHandle == NULL) {\r | |
769 | //\r | |
770 | // Routing data does not match any known driver.\r | |
771 | // Set Progress to the 'G' in "GUID" of the routing header.\r | |
772 | //\r | |
773 | *Progress = StringPtr;\r | |
774 | SafeFreePool (ConfigRequest);\r | |
775 | return EFI_NOT_FOUND;\r | |
776 | }\r | |
777 | \r | |
778 | //\r | |
779 | // Call corresponding ConfigAccess protocol to extract settings\r | |
780 | //\r | |
781 | Status = gBS->HandleProtocol (\r | |
782 | DriverHandle,\r | |
783 | &gEfiHiiConfigAccessProtocolGuid,\r | |
784 | (VOID **) &ConfigAccess\r | |
785 | );\r | |
786 | ASSERT_EFI_ERROR (Status);\r | |
787 | \r | |
788 | Status = ConfigAccess->ExtractConfig (\r | |
789 | ConfigAccess,\r | |
790 | ConfigRequest,\r | |
791 | &AccessProgress,\r | |
792 | &AccessResults\r | |
793 | );\r | |
794 | if (EFI_ERROR (Status)) {\r | |
795 | //\r | |
796 | // AccessProgress indicates the parsing progress on <ConfigRequest>.\r | |
797 | // Map it to the progress on <MultiConfigRequest> then return it.\r | |
798 | //\r | |
799 | RemainSize = StrSize (AccessProgress);\r | |
800 | for (TmpPtr = StringPtr; CompareMem (TmpPtr, AccessProgress, RemainSize) != 0; TmpPtr++);\r | |
801 | *Progress = TmpPtr;\r | |
802 | \r | |
803 | SafeFreePool (ConfigRequest);\r | |
804 | return Status;\r | |
805 | }\r | |
806 | \r | |
807 | //\r | |
808 | // Attach this <ConfigAltResp> to a <MultiConfigAltResp>\r | |
809 | //\r | |
810 | ASSERT (*AccessProgress == 0);\r | |
811 | Status = AppendToMultiString (Results, AccessResults);\r | |
812 | ASSERT_EFI_ERROR (Status);\r | |
813 | SafeFreePool (AccessResults);\r | |
814 | AccessResults = NULL;\r | |
815 | SafeFreePool (ConfigRequest);\r | |
816 | ConfigRequest = NULL;\r | |
817 | \r | |
818 | //\r | |
819 | // Go to next <ConfigRequest> (skip '&').\r | |
820 | //\r | |
821 | StringPtr += Length;\r | |
822 | if (*StringPtr == 0) {\r | |
823 | *Progress = StringPtr;\r | |
824 | break;\r | |
825 | }\r | |
826 | \r | |
827 | StringPtr++;\r | |
828 | \r | |
829 | }\r | |
830 | \r | |
831 | return EFI_SUCCESS;\r | |
93e3992d | 832 | \r |
833 | }\r | |
834 | \r | |
835 | \r | |
836 | /**\r | |
837 | This function allows the caller to request the current configuration for the\r | |
838 | entirety of the current HII database and returns the data in a\r | |
839 | null-terminated Unicode string.\r | |
840 | \r | |
841 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
842 | instance.\r | |
843 | @param Results Null-terminated Unicode string in\r | |
844 | <MultiConfigAltResp> format which has all values\r | |
845 | filled in for the names in the Request string.\r | |
846 | String to be allocated by the called function.\r | |
847 | De-allocation is up to the caller.\r | |
848 | \r | |
849 | @retval EFI_SUCCESS The Results string is filled with the values\r | |
850 | corresponding to all requested names.\r | |
851 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
852 | results that must be stored awaiting possible\r | |
853 | future protocols.\r | |
854 | @retval EFI_INVALID_PARAMETER For example, passing in a NULL for the Results\r | |
855 | parameter would result in this type of error.\r | |
856 | \r | |
857 | **/\r | |
858 | EFI_STATUS\r | |
859 | EFIAPI\r | |
860 | HiiConfigRoutingExportConfig (\r | |
861 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
862 | OUT EFI_STRING *Results\r | |
863 | )\r | |
864 | {\r | |
93e3992d | 865 | EFI_STATUS Status;\r |
866 | HII_DATABASE_PRIVATE_DATA *Private;\r | |
867 | LIST_ENTRY StorageListHdr;\r | |
868 | HII_FORMSET_STORAGE *Storage;\r | |
869 | LIST_ENTRY *Link;\r | |
870 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
871 | UINTN Length;\r | |
872 | EFI_STRING PathHdr;\r | |
873 | UINTN PathHdrSize;\r | |
874 | EFI_STRING ConfigRequest;\r | |
875 | UINTN RequestSize;\r | |
876 | EFI_STRING StringPtr;\r | |
877 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
878 | EFI_STRING AccessProgress;\r | |
879 | EFI_STRING AccessResults;\r | |
880 | UINTN TmpSize;\r | |
881 | \r | |
e94358a3 | 882 | //\r |
883 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
884 | // as FALSE. But this renders the system to not 100% compliant with\r | |
885 | // UEFI 2.1. Use this with caution.\r | |
886 | //\r | |
887 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
888 | return EFI_UNSUPPORTED;\r | |
889 | }\r | |
890 | \r | |
93e3992d | 891 | if (This == NULL || Results == NULL) {\r |
892 | return EFI_INVALID_PARAMETER;\r | |
893 | }\r | |
894 | \r | |
895 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
896 | \r | |
897 | InitializeListHead (&StorageListHdr);\r | |
898 | \r | |
899 | Status = ExportAllStorage (&Private->HiiDatabase, &StorageListHdr);\r | |
900 | if (EFI_ERROR (Status)) {\r | |
901 | return Status;\r | |
902 | }\r | |
903 | \r | |
904 | //\r | |
905 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
906 | // Results if this fix length is insufficient.\r | |
907 | //\r | |
908 | *Results = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
909 | if (*Results == NULL) {\r | |
910 | return EFI_OUT_OF_RESOURCES;\r | |
911 | }\r | |
912 | \r | |
913 | //\r | |
914 | // Parsing all formset storages.\r | |
915 | //\r | |
916 | for (Link = StorageListHdr.ForwardLink; Link != &StorageListHdr; Link = Link->ForwardLink) {\r | |
917 | Storage = CR (Link, HII_FORMSET_STORAGE, Entry, HII_FORMSET_STORAGE_SIGNATURE);\r | |
918 | //\r | |
919 | // Find the corresponding device path instance\r | |
920 | //\r | |
921 | Status = gBS->HandleProtocol (\r | |
922 | Storage->DriverHandle,\r | |
923 | &gEfiDevicePathProtocolGuid,\r | |
924 | (VOID **) &DevicePath\r | |
925 | );\r | |
926 | if (EFI_ERROR (Status)) {\r | |
927 | return Status;\r | |
928 | }\r | |
929 | //\r | |
930 | // Convert the device path binary to hex UNICODE %02x bytes in the same order\r | |
931 | // as the device path resides in RAM memory.\r | |
932 | //\r | |
933 | Length = GetDevicePathSize (DevicePath);\r | |
934 | PathHdrSize = (Length * 2 + 1) * sizeof (CHAR16);\r | |
935 | PathHdr = (EFI_STRING) AllocateZeroPool (PathHdrSize);\r | |
936 | if (PathHdr == NULL) {\r | |
937 | return EFI_OUT_OF_RESOURCES;\r | |
938 | }\r | |
813acf3a | 939 | Status = BufferToHexString (PathHdr, (UINT8 *) DevicePath, Length);\r |
93e3992d | 940 | ASSERT_EFI_ERROR (Status);\r |
941 | \r | |
942 | //\r | |
943 | // Generate a <ConfigRequest> with one <ConfigHdr> and zero <RequestElement>.\r | |
944 | // It means extract all possible configurations from this specific driver.\r | |
945 | //\r | |
946 | TmpSize = StrLen (L"GUID=&NAME=&PATH=");\r | |
813acf3a | 947 | RequestSize = (TmpSize + 32 + StrLen (Storage->Name) * 4)\r |
93e3992d | 948 | * sizeof (CHAR16) + PathHdrSize;\r |
949 | ConfigRequest = (EFI_STRING) AllocateZeroPool (RequestSize);\r | |
950 | if (ConfigRequest == NULL) {\r | |
951 | SafeFreePool (PathHdr);\r | |
952 | return EFI_OUT_OF_RESOURCES;\r | |
953 | }\r | |
954 | \r | |
955 | //\r | |
956 | // Add <GuidHdr>\r | |
957 | // <GuidHdr> ::= 'GUID='<Guid>\r | |
813acf3a | 958 | // Convert <Guid> in the same order as it resides in RAM memory.\r |
93e3992d | 959 | //\r |
960 | StringPtr = ConfigRequest;\r | |
961 | StrnCpy (StringPtr, L"GUID=", StrLen (L"GUID="));\r | |
962 | StringPtr += StrLen (L"GUID=");\r | |
963 | \r | |
813acf3a | 964 | Status = BufferToHexString (StringPtr, (UINT8 *) (&Storage->Guid), sizeof (EFI_GUID));\r |
93e3992d | 965 | ASSERT_EFI_ERROR (Status);\r |
813acf3a | 966 | \r |
967 | StringPtr += 32;\r | |
93e3992d | 968 | ASSERT (*StringPtr == 0);\r |
969 | *StringPtr = L'&';\r | |
970 | StringPtr++;\r | |
971 | \r | |
972 | //\r | |
973 | // Add <NameHdr>\r | |
974 | // <NameHdr> ::= 'NAME='<String>\r | |
975 | //\r | |
976 | StrnCpy (StringPtr, L"NAME=", StrLen (L"NAME="));\r | |
977 | StringPtr += StrLen (L"NAME=");\r | |
813acf3a | 978 | \r |
979 | Length = (StrLen (Storage->Name) * 4 + 1) * sizeof (CHAR16);\r | |
980 | Status = UnicodeToConfigString (StringPtr, &Length, Storage->Name);\r | |
981 | ASSERT_EFI_ERROR (Status);\r | |
982 | StringPtr += StrLen (Storage->Name) * 4;\r | |
983 | \r | |
93e3992d | 984 | *StringPtr = L'&';\r |
985 | StringPtr++;\r | |
986 | \r | |
987 | //\r | |
988 | // Add <PathHdr>\r | |
989 | // <PathHdr> ::= '<PATH=>'<UEFI binary represented as hex UNICODE %02x>\r | |
990 | //\r | |
991 | StrnCpy (StringPtr, L"PATH=", StrLen (L"PATH="));\r | |
992 | StringPtr += StrLen (L"PATH=");\r | |
993 | StrCpy (StringPtr, PathHdr);\r | |
994 | \r | |
995 | SafeFreePool (PathHdr);\r | |
996 | PathHdr = NULL;\r | |
997 | \r | |
998 | //\r | |
999 | // BUGBUG: The "Implementation note" of ExportConfig() in UEFI spec makes the\r | |
1000 | // code somewhat complex. Let's TBD here whether a <ConfigRequest> or a <ConfigHdr>\r | |
1001 | // is required to call ConfigAccess.ExtractConfig().\r | |
1002 | //\r | |
1003 | // Here we use <ConfigHdr> to call ConfigAccess instance. It requires ConfigAccess\r | |
1004 | // to handle such kind of "ConfigRequest". It is not supported till now.\r | |
1005 | //\r | |
1006 | // Either the ExportConfig will be updated or the ConfigAccess.ExtractConfig()\r | |
1007 | // will be updated as soon as the decision is made.\r | |
1008 | \r | |
1009 | //\r | |
1010 | // Route the request to corresponding ConfigAccess protocol to extract settings.\r | |
1011 | //\r | |
1012 | Status = gBS->HandleProtocol (\r | |
1013 | Storage->DriverHandle,\r | |
1014 | &gEfiHiiConfigAccessProtocolGuid,\r | |
1015 | (VOID **) &ConfigAccess\r | |
1016 | );\r | |
1017 | ASSERT_EFI_ERROR (Status);\r | |
1018 | \r | |
1019 | Status = ConfigAccess->ExtractConfig (\r | |
1020 | ConfigAccess,\r | |
1021 | ConfigRequest,\r | |
1022 | &AccessProgress,\r | |
1023 | &AccessResults\r | |
1024 | );\r | |
1025 | if (EFI_ERROR (Status)) {\r | |
1026 | SafeFreePool (ConfigRequest);\r | |
1027 | SafeFreePool (AccessResults);\r | |
1028 | return EFI_INVALID_PARAMETER;\r | |
1029 | }\r | |
1030 | \r | |
1031 | //\r | |
1032 | // Attach this <ConfigAltResp> to a <MultiConfigAltResp>\r | |
1033 | //\r | |
1034 | ASSERT (*AccessProgress == 0);\r | |
1035 | Status = AppendToMultiString (Results, AccessResults);\r | |
1036 | ASSERT_EFI_ERROR (Status);\r | |
1037 | SafeFreePool (AccessResults);\r | |
1038 | AccessResults = NULL;\r | |
1039 | SafeFreePool (ConfigRequest);\r | |
1040 | ConfigRequest = NULL;\r | |
1041 | \r | |
1042 | }\r | |
1043 | \r | |
1044 | //\r | |
1045 | // Free the exported storage resource\r | |
1046 | //\r | |
1047 | while (!IsListEmpty (&StorageListHdr)) {\r | |
1048 | Storage = CR (\r | |
1049 | StorageListHdr.ForwardLink,\r | |
1050 | HII_FORMSET_STORAGE,\r | |
1051 | Entry,\r | |
1052 | HII_FORMSET_STORAGE_SIGNATURE\r | |
1053 | );\r | |
1054 | RemoveEntryList (&Storage->Entry);\r | |
1055 | SafeFreePool (Storage->Name);\r | |
1056 | SafeFreePool (Storage);\r | |
1057 | }\r | |
1058 | \r | |
1059 | return EFI_SUCCESS;\r | |
93e3992d | 1060 | }\r |
1061 | \r | |
1062 | \r | |
1063 | /**\r | |
1064 | This function processes the results of processing forms and routes it to the\r | |
1065 | appropriate handlers or storage.\r | |
1066 | \r | |
1067 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
1068 | instance.\r | |
1069 | @param Configuration A null-terminated Unicode string in\r | |
1070 | <MulltiConfigResp> format.\r | |
1071 | @param Progress A pointer to a string filled in with the offset of\r | |
1072 | the most recent & before the first failing name /\r | |
1073 | value pair (or the beginning of the string if the\r | |
1074 | failure is in the first name / value pair) or the\r | |
1075 | terminating NULL if all was successful.\r | |
1076 | \r | |
1077 | @retval EFI_SUCCESS The results have been distributed or are awaiting\r | |
1078 | distribution.\r | |
1079 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
1080 | results that must be stored awaiting possible\r | |
1081 | future protocols.\r | |
1082 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the Configuration parameter\r | |
1083 | would result in this type of error.\r | |
1084 | @retval EFI_NOT_FOUND Target for the specified routing data was not\r | |
1085 | found.\r | |
1086 | \r | |
1087 | **/\r | |
1088 | EFI_STATUS\r | |
1089 | EFIAPI\r | |
813acf3a | 1090 | HiiConfigRoutingRouteConfig (\r |
93e3992d | 1091 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r |
1092 | IN CONST EFI_STRING Configuration,\r | |
1093 | OUT EFI_STRING *Progress\r | |
1094 | )\r | |
1095 | {\r | |
93e3992d | 1096 | HII_DATABASE_PRIVATE_DATA *Private;\r |
1097 | EFI_STRING StringPtr;\r | |
1098 | EFI_STRING ConfigResp;\r | |
1099 | UINTN Length;\r | |
1100 | EFI_STATUS Status;\r | |
1101 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
1102 | LIST_ENTRY *Link;\r | |
1103 | HII_DATABASE_RECORD *Database;\r | |
1104 | UINT8 *CurrentDevicePath;\r | |
1105 | EFI_HANDLE DriverHandle;\r | |
1106 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
1107 | EFI_STRING AccessProgress;\r | |
1108 | UINTN RemainSize;\r | |
1109 | EFI_STRING TmpPtr;\r | |
1110 | \r | |
e94358a3 | 1111 | //\r |
1112 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
1113 | // as FALSE. But this renders the system to not 100% compliant with\r | |
1114 | // UEFI 2.1. Use this with caution.\r | |
1115 | //\r | |
1116 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
1117 | return EFI_UNSUPPORTED;\r | |
1118 | }\r | |
1119 | \r | |
93e3992d | 1120 | if (This == NULL || Progress == NULL) {\r |
1121 | return EFI_INVALID_PARAMETER;\r | |
1122 | }\r | |
1123 | \r | |
1124 | if (Configuration == NULL) {\r | |
1125 | *Progress = NULL;\r | |
1126 | return EFI_INVALID_PARAMETER;\r | |
1127 | }\r | |
1128 | \r | |
1129 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
1130 | StringPtr = Configuration;\r | |
1131 | *Progress = StringPtr;\r | |
1132 | \r | |
1133 | //\r | |
1134 | // The first element of <MultiConfigResp> should be\r | |
1135 | // <GuidHdr>, which is in 'GUID='<Guid> syntax.\r | |
1136 | //\r | |
1137 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1138 | return EFI_INVALID_PARAMETER;\r | |
1139 | }\r | |
1140 | \r | |
1141 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) == 0) {\r | |
1142 | //\r | |
1143 | // If parsing error, set Progress to the beginning of the <MultiConfigResp>\r | |
1144 | // or most recent & before the error.\r | |
1145 | //\r | |
1146 | if (StringPtr == Configuration) {\r | |
1147 | *Progress = StringPtr;\r | |
1148 | } else {\r | |
1149 | *Progress = StringPtr - 1;\r | |
1150 | }\r | |
1151 | \r | |
1152 | //\r | |
1153 | // Process each <ConfigResp> of <MultiConfigResp>\r | |
1154 | //\r | |
1155 | Length = CalculateConfigStringLen (StringPtr);\r | |
1156 | ConfigResp = AllocateCopyPool ((Length + 1) * sizeof (CHAR16), StringPtr);\r | |
1157 | if (ConfigResp == NULL) {\r | |
1158 | return EFI_OUT_OF_RESOURCES;\r | |
1159 | }\r | |
1160 | //\r | |
1161 | // Append '\0' to the end of ConfigRequest\r | |
1162 | //\r | |
1163 | *(ConfigResp + Length) = 0;\r | |
1164 | \r | |
1165 | //\r | |
1166 | // Get the UEFI device path\r | |
1167 | //\r | |
1168 | Status = GetDevicePath (ConfigResp, (UINT8 **) &DevicePath);\r | |
1169 | if (EFI_ERROR (Status)) {\r | |
1170 | SafeFreePool (ConfigResp);\r | |
1171 | return Status;\r | |
1172 | }\r | |
1173 | \r | |
1174 | //\r | |
1175 | // Find driver which matches the routing data.\r | |
1176 | //\r | |
1177 | DriverHandle = NULL;\r | |
1178 | for (Link = Private->DatabaseList.ForwardLink;\r | |
1179 | Link != &Private->DatabaseList;\r | |
1180 | Link = Link->ForwardLink\r | |
1181 | ) {\r | |
1182 | Database = CR (Link, HII_DATABASE_RECORD, DatabaseEntry, HII_DATABASE_RECORD_SIGNATURE);\r | |
1183 | CurrentDevicePath = Database->PackageList->DevicePathPkg + sizeof (EFI_HII_PACKAGE_HEADER);\r | |
1184 | if (CurrentDevicePath != NULL) {\r | |
1185 | if (CompareMem (\r | |
1186 | DevicePath,\r | |
1187 | CurrentDevicePath,\r | |
1188 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) CurrentDevicePath)\r | |
1189 | ) == 0) {\r | |
1190 | DriverHandle = Database->DriverHandle;\r | |
1191 | break;\r | |
1192 | }\r | |
1193 | }\r | |
1194 | }\r | |
1195 | \r | |
1196 | SafeFreePool (DevicePath);\r | |
1197 | \r | |
1198 | if (DriverHandle == NULL) {\r | |
1199 | //\r | |
1200 | // Routing data does not match any known driver.\r | |
1201 | // Set Progress to the 'G' in "GUID" of the routing header.\r | |
1202 | //\r | |
1203 | *Progress = StringPtr;\r | |
1204 | SafeFreePool (ConfigResp);\r | |
1205 | return EFI_NOT_FOUND;\r | |
1206 | }\r | |
1207 | \r | |
1208 | //\r | |
1209 | // Call corresponding ConfigAccess protocol to route settings\r | |
1210 | //\r | |
1211 | Status = gBS->HandleProtocol (\r | |
1212 | DriverHandle,\r | |
1213 | &gEfiHiiConfigAccessProtocolGuid,\r | |
1214 | (VOID **) &ConfigAccess\r | |
1215 | );\r | |
1216 | ASSERT_EFI_ERROR (Status);\r | |
1217 | \r | |
1218 | Status = ConfigAccess->RouteConfig (\r | |
1219 | ConfigAccess,\r | |
1220 | ConfigResp,\r | |
1221 | &AccessProgress\r | |
1222 | );\r | |
1223 | \r | |
1224 | if (EFI_ERROR (Status)) {\r | |
1225 | //\r | |
1226 | // AccessProgress indicates the parsing progress on <ConfigResp>.\r | |
1227 | // Map it to the progress on <MultiConfigResp> then return it.\r | |
1228 | //\r | |
1229 | RemainSize = StrSize (AccessProgress);\r | |
1230 | for (TmpPtr = StringPtr; CompareMem (TmpPtr, AccessProgress, RemainSize) != 0; TmpPtr++);\r | |
1231 | *Progress = TmpPtr;\r | |
1232 | \r | |
1233 | SafeFreePool (ConfigResp);\r | |
1234 | return Status;\r | |
1235 | }\r | |
1236 | \r | |
1237 | SafeFreePool (ConfigResp);\r | |
1238 | ConfigResp = NULL;\r | |
1239 | \r | |
1240 | //\r | |
1241 | // Go to next <ConfigResp> (skip '&').\r | |
1242 | //\r | |
1243 | StringPtr += Length;\r | |
1244 | if (*StringPtr == 0) {\r | |
1245 | *Progress = StringPtr;\r | |
1246 | break;\r | |
1247 | }\r | |
1248 | \r | |
1249 | StringPtr++;\r | |
1250 | \r | |
1251 | }\r | |
1252 | \r | |
1253 | return EFI_SUCCESS;\r | |
93e3992d | 1254 | }\r |
1255 | \r | |
1256 | \r | |
1257 | /**\r | |
1258 | This helper function is to be called by drivers to map configuration data\r | |
1259 | stored in byte array ("block") formats such as UEFI Variables into current\r | |
1260 | configuration strings.\r | |
1261 | \r | |
1262 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
1263 | instance.\r | |
1264 | @param ConfigRequest A null-terminated Unicode string in\r | |
1265 | <ConfigRequest> format.\r | |
1266 | @param Block Array of bytes defining the block's configuration.\r | |
1267 | @param BlockSize Length in bytes of Block.\r | |
1268 | @param Config Filled-in configuration string. String allocated\r | |
1269 | by the function. Returned only if call is\r | |
1270 | successful.\r | |
1271 | @param Progress A pointer to a string filled in with the offset of\r | |
1272 | the most recent & before the first failing\r | |
1273 | name/value pair (or the beginning of the string if\r | |
1274 | the failure is in the first name / value pair) or\r | |
1275 | the terminating NULL if all was successful.\r | |
1276 | \r | |
1277 | @retval EFI_SUCCESS The request succeeded. Progress points to the null\r | |
1278 | terminator at the end of the ConfigRequest\r | |
1279 | string.\r | |
1280 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate Config. Progress\r | |
1281 | points to the first character of ConfigRequest.\r | |
1282 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the ConfigRequest or\r | |
1283 | Block parameter would result in this type of\r | |
1284 | error. Progress points to the first character of\r | |
1285 | ConfigRequest.\r | |
1286 | @retval EFI_DEVICE_ERROR Block not large enough. Progress undefined.\r | |
1287 | @retval EFI_INVALID_PARAMETER Encountered non <BlockName> formatted string.\r | |
1288 | Block is left updated and Progress points at\r | |
1289 | the "&" preceding the first non-<BlockName>.\r | |
1290 | \r | |
1291 | **/\r | |
1292 | EFI_STATUS\r | |
1293 | EFIAPI\r | |
1294 | HiiBlockToConfig (\r | |
1295 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
1296 | IN CONST EFI_STRING ConfigRequest,\r | |
1297 | IN CONST UINT8 *Block,\r | |
1298 | IN CONST UINTN BlockSize,\r | |
1299 | OUT EFI_STRING *Config,\r | |
1300 | OUT EFI_STRING *Progress\r | |
1301 | )\r | |
1302 | {\r | |
1303 | HII_DATABASE_PRIVATE_DATA *Private;\r | |
1304 | EFI_STRING StringPtr;\r | |
1305 | UINTN Length;\r | |
1306 | EFI_STATUS Status;\r | |
1307 | EFI_STRING TmpPtr;\r | |
1308 | UINT8 *TmpBuffer;\r | |
1309 | UINTN Offset;\r | |
1310 | UINTN Width;\r | |
1311 | UINT8 *Value;\r | |
1312 | EFI_STRING ValueStr;\r | |
1313 | EFI_STRING ConfigElement;\r | |
1314 | \r | |
1315 | if (This == NULL || Progress == NULL || Config == NULL) {\r | |
1316 | return EFI_INVALID_PARAMETER;\r | |
1317 | }\r | |
1318 | \r | |
1319 | if (Block == NULL || ConfigRequest == NULL) {\r | |
1320 | *Progress = ConfigRequest;\r | |
1321 | return EFI_INVALID_PARAMETER;\r | |
1322 | }\r | |
1323 | \r | |
1324 | \r | |
1325 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
1326 | ASSERT (Private != NULL);\r | |
1327 | \r | |
1328 | StringPtr = ConfigRequest;\r | |
1329 | ValueStr = NULL;\r | |
1330 | Value = NULL;\r | |
1331 | ConfigElement = NULL;\r | |
1332 | \r | |
1333 | //\r | |
1334 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
1335 | // Results if this fix length is insufficient.\r | |
1336 | //\r | |
1337 | *Config = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
1338 | if (*Config == NULL) {\r | |
1339 | return EFI_OUT_OF_RESOURCES;\r | |
1340 | }\r | |
1341 | \r | |
1342 | //\r | |
1343 | // Jump <ConfigHdr>\r | |
1344 | //\r | |
1345 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1346 | *Progress = StringPtr;\r | |
1347 | Status = EFI_INVALID_PARAMETER;\r | |
1348 | goto Exit;\r | |
1349 | }\r | |
1350 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"PATH=", StrLen (L"PATH=")) != 0) {\r | |
1351 | StringPtr++;\r | |
1352 | }\r | |
1353 | if (*StringPtr == 0) {\r | |
1354 | *Progress = StringPtr;\r | |
1355 | Status = EFI_INVALID_PARAMETER;\r | |
1356 | goto Exit;\r | |
1357 | }\r | |
1358 | while (*StringPtr++ != L'&');\r | |
1359 | \r | |
1360 | //\r | |
1361 | // Copy <ConfigHdr> and an additional '&' to <ConfigResp>\r | |
1362 | //\r | |
1363 | Length = StringPtr - ConfigRequest;\r | |
1364 | CopyMem (*Config, ConfigRequest, Length * sizeof (CHAR16));\r | |
1365 | \r | |
1366 | //\r | |
1367 | // Parse each <RequestElement> if exists\r | |
1368 | // Only <BlockName> format is supported by this help function.\r | |
1369 | // <BlockName> ::= 'OFFSET='<Number>&'WIDTH='<Number>\r | |
1370 | //\r | |
1371 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"OFFSET=", StrLen (L"OFFSET=")) == 0) {\r | |
1372 | //\r | |
1373 | // Back up the header of one <BlockName>\r | |
1374 | //\r | |
1375 | TmpPtr = StringPtr;\r | |
1376 | \r | |
1377 | StringPtr += StrLen (L"OFFSET=");\r | |
1378 | //\r | |
1379 | // Get Offset\r | |
1380 | //\r | |
1381 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1382 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1383 | *Progress = ConfigRequest;\r | |
1384 | goto Exit;\r | |
1385 | }\r | |
1386 | Offset = 0;\r | |
1387 | CopyMem (\r | |
1388 | &Offset,\r | |
1389 | TmpBuffer,\r | |
1390 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1391 | );\r | |
1392 | SafeFreePool (TmpBuffer);\r | |
1393 | \r | |
1394 | StringPtr += Length;\r | |
1395 | if (StrnCmp (StringPtr, L"&WIDTH=", StrLen (L"&WIDTH=")) != 0) {\r | |
1396 | *Progress = StringPtr - Length - StrLen (L"OFFSET=") - 1;\r | |
1397 | Status = EFI_INVALID_PARAMETER;\r | |
1398 | goto Exit;\r | |
1399 | }\r | |
1400 | StringPtr += StrLen (L"&WIDTH=");\r | |
1401 | \r | |
1402 | //\r | |
1403 | // Get Width\r | |
1404 | //\r | |
1405 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1406 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1407 | *Progress = ConfigRequest;\r | |
1408 | goto Exit;\r | |
1409 | }\r | |
1410 | Width = 0;\r | |
1411 | CopyMem (\r | |
1412 | &Width,\r | |
1413 | TmpBuffer,\r | |
1414 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1415 | );\r | |
1416 | SafeFreePool (TmpBuffer);\r | |
1417 | \r | |
1418 | StringPtr += Length;\r | |
1419 | if (*StringPtr != 0 && *StringPtr != L'&') {\r | |
1420 | *Progress = StringPtr - Length - StrLen (L"&WIDTH=");\r | |
1421 | Status = EFI_INVALID_PARAMETER;\r | |
1422 | goto Exit;\r | |
1423 | }\r | |
1424 | \r | |
1425 | //\r | |
1426 | // Calculate Value and convert it to hex string.\r | |
1427 | //\r | |
1428 | if (Offset + Width > BlockSize) {\r | |
1429 | *Progress = StringPtr;\r | |
1430 | Status = EFI_DEVICE_ERROR;\r | |
1431 | goto Exit;\r | |
1432 | }\r | |
1433 | \r | |
1434 | Value = (UINT8 *) AllocateZeroPool (Width);\r | |
1435 | if (Value == NULL) {\r | |
1436 | *Progress = ConfigRequest;\r | |
1437 | Status = EFI_OUT_OF_RESOURCES;\r | |
1438 | goto Exit;\r | |
1439 | }\r | |
1440 | \r | |
1441 | CopyMem (Value, (UINT8 *) Block + Offset, Width);\r | |
1442 | \r | |
1443 | Length = Width * 2 + 1;\r | |
1444 | ValueStr = (EFI_STRING) AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1445 | if (ValueStr == NULL) {\r | |
1446 | *Progress = ConfigRequest;\r | |
1447 | Status = EFI_OUT_OF_RESOURCES;\r | |
1448 | goto Exit;\r | |
1449 | }\r | |
1450 | \r | |
36fe40c2 | 1451 | Status = BufToHexString (ValueStr, &Length, Value, Width);\r |
93e3992d | 1452 | ASSERT_EFI_ERROR (Status);\r |
813acf3a | 1453 | ToLower (ValueStr);\r |
1454 | \r | |
93e3992d | 1455 | SafeFreePool (Value);\r |
1456 | Value = NULL;\r | |
1457 | \r | |
1458 | //\r | |
1459 | // Build a ConfigElement\r | |
1460 | //\r | |
1461 | Length += StringPtr - TmpPtr + 1 + StrLen (L"VALUE=");\r | |
1462 | ConfigElement = (EFI_STRING) AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1463 | if (ConfigElement == NULL) {\r | |
1464 | Status = EFI_OUT_OF_RESOURCES;\r | |
1465 | goto Exit;\r | |
1466 | }\r | |
1467 | CopyMem (ConfigElement, TmpPtr, (StringPtr - TmpPtr + 1) * sizeof (CHAR16));\r | |
1468 | if (*StringPtr == 0) {\r | |
1469 | *(ConfigElement + (StringPtr - TmpPtr)) = L'&';\r | |
1470 | }\r | |
1471 | *(ConfigElement + (StringPtr - TmpPtr) + 1) = 0;\r | |
1472 | StrCat (ConfigElement, L"VALUE=");\r | |
1473 | StrCat (ConfigElement, ValueStr);\r | |
1474 | \r | |
1475 | AppendToMultiString (Config, ConfigElement);\r | |
1476 | \r | |
1477 | SafeFreePool (ConfigElement);\r | |
1478 | SafeFreePool (ValueStr);\r | |
1479 | ConfigElement = NULL;\r | |
1480 | ValueStr = NULL;\r | |
1481 | \r | |
1482 | //\r | |
1483 | // If '\0', parsing is finished. Otherwise skip '&' to continue\r | |
1484 | //\r | |
1485 | if (*StringPtr == 0) {\r | |
1486 | break;\r | |
1487 | }\r | |
1488 | AppendToMultiString (Config, L"&");\r | |
1489 | StringPtr++;\r | |
1490 | \r | |
1491 | }\r | |
1492 | \r | |
1493 | if (*StringPtr != 0) {\r | |
1494 | *Progress = StringPtr - 1;\r | |
1495 | Status = EFI_INVALID_PARAMETER;\r | |
1496 | goto Exit;\r | |
1497 | }\r | |
1498 | \r | |
1499 | *Progress = StringPtr;\r | |
1500 | return EFI_SUCCESS;\r | |
1501 | \r | |
1502 | Exit:\r | |
1503 | \r | |
1504 | SafeFreePool (*Config);\r | |
1505 | SafeFreePool (ValueStr);\r | |
1506 | SafeFreePool (Value);\r | |
1507 | SafeFreePool (ConfigElement);\r | |
1508 | \r | |
1509 | return Status;\r | |
1510 | \r | |
1511 | }\r | |
1512 | \r | |
1513 | \r | |
1514 | /**\r | |
1515 | This helper function is to be called by drivers to map configuration strings\r | |
1516 | to configurations stored in byte array ("block") formats such as UEFI Variables.\r | |
1517 | \r | |
1518 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
1519 | instance.\r | |
1520 | @param ConfigResp A null-terminated Unicode string in <ConfigResp>\r | |
1521 | format.\r | |
1522 | @param Block A possibly null array of bytes representing the\r | |
1523 | current block. Only bytes referenced in the\r | |
1524 | ConfigResp string in the block are modified. If\r | |
1525 | this parameter is null or if the *BlockSize\r | |
1526 | parameter is (on input) shorter than required by\r | |
1527 | the Configuration string, only the BlockSize\r | |
1528 | parameter is updated and an appropriate status\r | |
1529 | (see below) is returned.\r | |
1530 | @param BlockSize The length of the Block in units of UINT8. On\r | |
1531 | input, this is the size of the Block. On output,\r | |
1532 | if successful, contains the index of the last\r | |
1533 | modified byte in the Block.\r | |
1534 | @param Progress On return, points to an element of the ConfigResp\r | |
1535 | string filled in with the offset of the most\r | |
1536 | recent '&' before the first failing name / value\r | |
1537 | pair (or the beginning of the string if the\r | |
1538 | failure is in the first name / value pair) or the\r | |
1539 | terminating NULL if all was successful.\r | |
1540 | \r | |
1541 | @retval EFI_SUCCESS The request succeeded. Progress points to the null\r | |
1542 | terminator at the end of the ConfigResp string.\r | |
1543 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate Config. Progress\r | |
1544 | points to the first character of ConfigResp.\r | |
1545 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the ConfigResp or\r | |
1546 | Block parameter would result in this type of\r | |
1547 | error. Progress points to the first character of\r | |
1548 | ConfigResp.\r | |
1549 | @retval EFI_INVALID_PARAMETER Encountered non <BlockName> formatted name /\r | |
1550 | value pair. Block is left updated and\r | |
1551 | Progress points at the '&' preceding the first\r | |
1552 | non-<BlockName>.\r | |
1553 | \r | |
1554 | **/\r | |
1555 | EFI_STATUS\r | |
1556 | EFIAPI\r | |
1557 | HiiConfigToBlock (\r | |
1558 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
1559 | IN CONST EFI_STRING ConfigResp,\r | |
1560 | IN OUT UINT8 *Block,\r | |
1561 | IN OUT UINTN *BlockSize,\r | |
1562 | OUT EFI_STRING *Progress\r | |
1563 | )\r | |
1564 | {\r | |
1565 | HII_DATABASE_PRIVATE_DATA *Private;\r | |
1566 | EFI_STRING StringPtr;\r | |
1567 | UINTN Length;\r | |
1568 | EFI_STATUS Status;\r | |
1569 | UINT8 *TmpBuffer;\r | |
1570 | UINTN Offset;\r | |
1571 | UINTN Width;\r | |
1572 | UINT8 *Value;\r | |
1573 | UINTN BufferSize;\r | |
1574 | \r | |
1575 | if (This == NULL || BlockSize == NULL || Progress == NULL) {\r | |
1576 | return EFI_INVALID_PARAMETER;\r | |
1577 | }\r | |
1578 | \r | |
1579 | if (ConfigResp == NULL || Block == NULL) {\r | |
1580 | *Progress = ConfigResp;\r | |
1581 | return EFI_INVALID_PARAMETER;\r | |
1582 | }\r | |
1583 | \r | |
1584 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
1585 | ASSERT (Private != NULL);\r | |
1586 | \r | |
1587 | StringPtr = ConfigResp;\r | |
1588 | BufferSize = *BlockSize;\r | |
1589 | Value = NULL;\r | |
1590 | \r | |
1591 | //\r | |
1592 | // Jump <ConfigHdr>\r | |
1593 | //\r | |
1594 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1595 | *Progress = StringPtr;\r | |
1596 | Status = EFI_INVALID_PARAMETER;\r | |
1597 | goto Exit;\r | |
1598 | }\r | |
1599 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"PATH=", StrLen (L"PATH=")) != 0) {\r | |
1600 | StringPtr++;\r | |
1601 | }\r | |
1602 | if (*StringPtr == 0) {\r | |
1603 | *Progress = StringPtr;\r | |
1604 | Status = EFI_INVALID_PARAMETER;\r | |
1605 | goto Exit;\r | |
1606 | }\r | |
1607 | while (*StringPtr++ != L'&');\r | |
1608 | \r | |
1609 | //\r | |
1610 | // Parse each <ConfigElement> if exists\r | |
1611 | // Only <BlockConfig> format is supported by this help function.\r | |
1612 | // <BlockConfig> ::= 'OFFSET='<Number>&'WIDTH='<Number>&'VALUE='<Number>\r | |
1613 | //\r | |
1614 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"OFFSET=", StrLen (L"OFFSET=")) == 0) {\r | |
1615 | StringPtr += StrLen (L"OFFSET=");\r | |
1616 | //\r | |
1617 | // Get Offset\r | |
1618 | //\r | |
1619 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1620 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1621 | *Progress = ConfigResp;\r | |
1622 | goto Exit;\r | |
1623 | }\r | |
1624 | Offset = 0;\r | |
1625 | CopyMem (\r | |
1626 | &Offset,\r | |
1627 | TmpBuffer,\r | |
1628 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1629 | );\r | |
1630 | SafeFreePool (TmpBuffer);\r | |
1631 | \r | |
1632 | StringPtr += Length;\r | |
1633 | if (StrnCmp (StringPtr, L"&WIDTH=", StrLen (L"&WIDTH=")) != 0) {\r | |
1634 | *Progress = StringPtr - Length - StrLen (L"OFFSET=") - 1;\r | |
1635 | Status = EFI_INVALID_PARAMETER;\r | |
1636 | goto Exit;\r | |
1637 | }\r | |
1638 | StringPtr += StrLen (L"&WIDTH=");\r | |
1639 | \r | |
1640 | //\r | |
1641 | // Get Width\r | |
1642 | //\r | |
1643 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1644 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1645 | *Progress = ConfigResp;\r | |
1646 | goto Exit;\r | |
1647 | }\r | |
1648 | Width = 0;\r | |
1649 | CopyMem (\r | |
1650 | &Width,\r | |
1651 | TmpBuffer,\r | |
1652 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1653 | );\r | |
1654 | SafeFreePool (TmpBuffer);\r | |
1655 | \r | |
1656 | StringPtr += Length;\r | |
1657 | if (StrnCmp (StringPtr, L"&VALUE=", StrLen (L"&VALUE=")) != 0) {\r | |
1658 | *Progress = StringPtr - Length - StrLen (L"&WIDTH=");\r | |
1659 | Status = EFI_INVALID_PARAMETER;\r | |
1660 | goto Exit;\r | |
1661 | }\r | |
1662 | StringPtr += StrLen (L"&VALUE=");\r | |
1663 | \r | |
1664 | //\r | |
1665 | // Get Value\r | |
1666 | //\r | |
1667 | Status = GetValueOfNumber (StringPtr, &Value, &Length);\r | |
1668 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1669 | *Progress = ConfigResp;\r | |
1670 | goto Exit;\r | |
1671 | }\r | |
1672 | \r | |
1673 | StringPtr += Length;\r | |
1674 | if (*StringPtr != 0 && *StringPtr != L'&') {\r | |
1675 | *Progress = StringPtr - Length - 7;\r | |
1676 | Status = EFI_INVALID_PARAMETER;\r | |
1677 | goto Exit;\r | |
1678 | }\r | |
1679 | \r | |
1680 | //\r | |
1681 | // Update the Block with configuration info\r | |
1682 | //\r | |
1683 | \r | |
1684 | if (Offset + Width > BufferSize) {\r | |
1685 | return EFI_DEVICE_ERROR;\r | |
1686 | }\r | |
1687 | \r | |
1688 | CopyMem (Block + Offset, Value, Width);\r | |
1689 | *BlockSize = Offset + Width - 1;\r | |
1690 | \r | |
1691 | SafeFreePool (Value);\r | |
1692 | Value = NULL;\r | |
1693 | \r | |
1694 | //\r | |
1695 | // If '\0', parsing is finished. Otherwise skip '&' to continue\r | |
1696 | //\r | |
1697 | if (*StringPtr == 0) {\r | |
1698 | break;\r | |
1699 | }\r | |
1700 | \r | |
1701 | StringPtr++;\r | |
1702 | }\r | |
1703 | \r | |
1704 | if (*StringPtr != 0) {\r | |
1705 | *Progress = StringPtr - 1;\r | |
1706 | Status = EFI_INVALID_PARAMETER;\r | |
1707 | goto Exit;\r | |
1708 | }\r | |
1709 | \r | |
1710 | *Progress = StringPtr;\r | |
1711 | return EFI_SUCCESS;\r | |
1712 | \r | |
1713 | Exit:\r | |
1714 | \r | |
1715 | SafeFreePool (Value);\r | |
1716 | return Status;\r | |
1717 | }\r | |
1718 | \r | |
1719 | \r | |
1720 | /**\r | |
1721 | This helper function is to be called by drivers to extract portions of\r | |
1722 | a larger configuration string.\r | |
1723 | \r | |
1724 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
1725 | instance.\r | |
1726 | @param Configuration A null-terminated Unicode string in\r | |
1727 | <MultiConfigAltResp> format.\r | |
1728 | @param Guid A pointer to the GUID value to search for in the\r | |
1729 | routing portion of the ConfigResp string when\r | |
1730 | retrieving the requested data. If Guid is NULL,\r | |
1731 | then all GUID values will be searched for.\r | |
1732 | @param Name A pointer to the NAME value to search for in the\r | |
1733 | routing portion of the ConfigResp string when\r | |
1734 | retrieving the requested data. If Name is NULL,\r | |
1735 | then all Name values will be searched for.\r | |
1736 | @param DevicePath A pointer to the PATH value to search for in the\r | |
1737 | routing portion of the ConfigResp string when\r | |
1738 | retrieving the requested data. If DevicePath is\r | |
1739 | NULL, then all DevicePath values will be searched\r | |
1740 | for.\r | |
1741 | @param AltCfgId A pointer to the ALTCFG value to search for in the\r | |
1742 | routing portion of the ConfigResp string when\r | |
1743 | retrieving the requested data. If this parameter\r | |
1744 | is NULL, then the current setting will be\r | |
1745 | retrieved.\r | |
1746 | @param AltCfgResp A pointer to a buffer which will be allocated by\r | |
1747 | the function which contains the retrieved string\r | |
1748 | as requested. This buffer is only allocated if\r | |
1749 | the call was successful.\r | |
1750 | \r | |
1751 | @retval EFI_SUCCESS The request succeeded. The requested data was\r | |
1752 | extracted and placed in the newly allocated\r | |
1753 | AltCfgResp buffer.\r | |
1754 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate AltCfgResp.\r | |
1755 | @retval EFI_INVALID_PARAMETER Any parameter is invalid.\r | |
1756 | @retval EFI_NOT_FOUND Target for the specified routing data was not\r | |
1757 | found.\r | |
1758 | \r | |
1759 | **/\r | |
1760 | EFI_STATUS\r | |
1761 | EFIAPI\r | |
1762 | HiiGetAltCfg (\r | |
1763 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
1764 | IN CONST EFI_STRING Configuration,\r | |
1765 | IN CONST EFI_GUID *Guid,\r | |
1766 | IN CONST EFI_STRING Name,\r | |
1767 | IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
1768 | IN CONST UINT16 *AltCfgId,\r | |
1769 | OUT EFI_STRING *AltCfgResp\r | |
1770 | )\r | |
1771 | {\r | |
93e3992d | 1772 | EFI_STATUS Status;\r |
1773 | EFI_STRING StringPtr;\r | |
e90b081a | 1774 | EFI_STRING HdrStart;\r |
1775 | EFI_STRING HdrEnd;\r | |
93e3992d | 1776 | EFI_STRING TmpPtr;\r |
1777 | UINTN Length;\r | |
e90b081a | 1778 | EFI_STRING GuidStr;\r |
1779 | EFI_STRING NameStr;\r | |
1780 | EFI_STRING PathStr;\r | |
1781 | EFI_STRING AltIdStr;\r | |
1782 | EFI_STRING Result;\r | |
1783 | BOOLEAN GuidFlag;\r | |
1784 | BOOLEAN NameFlag;\r | |
1785 | BOOLEAN PathFlag;\r | |
1786 | \r | |
e94358a3 | 1787 | //\r |
1788 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
1789 | // as FALSE. But this renders the system to not 100% compliant with\r | |
1790 | // UEFI 2.1. Use this with caution.\r | |
1791 | //\r | |
1792 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
1793 | return EFI_UNSUPPORTED;\r | |
1794 | }\r | |
1795 | \r | |
e90b081a | 1796 | HdrStart = NULL;\r |
1797 | HdrEnd = NULL;\r | |
1798 | GuidStr = NULL;\r | |
1799 | NameStr = NULL;\r | |
1800 | PathStr = NULL;\r | |
1801 | AltIdStr = NULL;\r | |
1802 | Result = NULL;\r | |
1803 | GuidFlag = FALSE;\r | |
1804 | NameFlag = FALSE;\r | |
1805 | PathFlag = FALSE;\r | |
93e3992d | 1806 | \r |
1807 | if (This == NULL || Configuration == NULL || AltCfgResp == NULL) {\r | |
1808 | return EFI_INVALID_PARAMETER;\r | |
1809 | }\r | |
1810 | \r | |
1811 | StringPtr = Configuration;\r | |
1812 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1813 | return EFI_INVALID_PARAMETER;\r | |
1814 | }\r | |
1815 | \r | |
1816 | //\r | |
1817 | // Generate the sub string for later matching.\r | |
1818 | //\r | |
813acf3a | 1819 | GenerateSubStr (L"GUID=", sizeof (EFI_GUID), (VOID *) Guid, 1, &GuidStr);\r |
93e3992d | 1820 | GenerateSubStr (\r |
1821 | L"PATH=",\r | |
1822 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) DevicePath),\r | |
813acf3a | 1823 | (VOID *) DevicePath,\r |
1824 | 1,\r | |
93e3992d | 1825 | &PathStr\r |
1826 | );\r | |
1827 | if (AltCfgId != NULL) {\r | |
813acf3a | 1828 | GenerateSubStr (L"ALTCFG=", sizeof (UINT16), (VOID *) AltCfgId, 3, &AltIdStr); \r |
93e3992d | 1829 | }\r |
1830 | if (Name != NULL) {\r | |
813acf3a | 1831 | GenerateSubStr (L"NAME=", StrLen (Name) * sizeof (CHAR16), (VOID *) Name, 2, &NameStr); \r |
93e3992d | 1832 | } else {\r |
813acf3a | 1833 | GenerateSubStr (L"NAME=", 0, NULL, 2, &NameStr);\r |
93e3992d | 1834 | }\r |
1835 | \r | |
1836 | while (*StringPtr != 0) {\r | |
1837 | //\r | |
1838 | // Try to match the GUID\r | |
1839 | //\r | |
1840 | if (!GuidFlag) {\r | |
1841 | TmpPtr = StrStr (StringPtr, GuidStr);\r | |
1842 | if (TmpPtr == NULL) {\r | |
1843 | Status = EFI_NOT_FOUND;\r | |
1844 | goto Exit;\r | |
1845 | }\r | |
1846 | HdrStart = TmpPtr;\r | |
1847 | \r | |
1848 | //\r | |
1849 | // Jump to <NameHdr>\r | |
1850 | //\r | |
1851 | if (Guid != NULL) {\r | |
1852 | StringPtr = TmpPtr + StrLen (GuidStr);\r | |
1853 | } else {\r | |
1854 | StringPtr = StrStr (TmpPtr, L"NAME=");\r | |
1855 | if (StringPtr == NULL) {\r | |
1856 | Status = EFI_NOT_FOUND;\r | |
1857 | goto Exit;\r | |
1858 | }\r | |
1859 | }\r | |
1860 | GuidFlag = TRUE;\r | |
1861 | }\r | |
1862 | \r | |
1863 | //\r | |
1864 | // Try to match the NAME\r | |
1865 | //\r | |
1866 | if (GuidFlag && !NameFlag) {\r | |
1867 | if (StrnCmp (StringPtr, NameStr, StrLen (NameStr)) != 0) {\r | |
1868 | GuidFlag = FALSE;\r | |
1869 | } else {\r | |
1870 | //\r | |
1871 | // Jump to <PathHdr>\r | |
1872 | //\r | |
1873 | if (Name != NULL) {\r | |
1874 | StringPtr += StrLen (NameStr);\r | |
1875 | } else {\r | |
1876 | StringPtr = StrStr (StringPtr, L"PATH=");\r | |
1877 | if (StringPtr == NULL) {\r | |
1878 | Status = EFI_NOT_FOUND;\r | |
1879 | goto Exit;\r | |
1880 | }\r | |
1881 | }\r | |
1882 | NameFlag = TRUE;\r | |
1883 | }\r | |
1884 | }\r | |
1885 | \r | |
1886 | //\r | |
1887 | // Try to match the DevicePath\r | |
1888 | //\r | |
1889 | if (GuidFlag && NameFlag && !PathFlag) {\r | |
1890 | if (StrnCmp (StringPtr, PathStr, StrLen (PathStr)) != 0) {\r | |
1891 | GuidFlag = FALSE;\r | |
1892 | NameFlag = FALSE;\r | |
1893 | } else {\r | |
1894 | //\r | |
1895 | // Jump to '&' before <DescHdr> or <ConfigBody>\r | |
1896 | //\r | |
1897 | if (DevicePath != NULL) {\r | |
1898 | StringPtr += StrLen (PathStr);\r | |
1899 | } else {\r | |
1900 | StringPtr = StrStr (StringPtr, L"&");\r | |
1901 | if (StringPtr == NULL) {\r | |
1902 | Status = EFI_NOT_FOUND;\r | |
1903 | goto Exit;\r | |
1904 | }\r | |
1905 | }\r | |
1906 | PathFlag = TRUE;\r | |
1907 | HdrEnd = ++StringPtr;\r | |
1908 | }\r | |
1909 | }\r | |
1910 | \r | |
1911 | //\r | |
1912 | // Try to match the AltCfgId\r | |
1913 | //\r | |
1914 | if (GuidFlag && NameFlag && PathFlag) {\r | |
1915 | if (AltCfgId == NULL) {\r | |
1916 | //\r | |
1917 | // Return Current Setting when AltCfgId is NULL.\r | |
1918 | //\r | |
1919 | Status = OutputConfigBody (StringPtr, &Result);\r | |
1920 | goto Exit;\r | |
1921 | }\r | |
1922 | //\r | |
1923 | // Search the <ConfigAltResp> to get the <AltResp> with AltCfgId.\r | |
1924 | //\r | |
1925 | if (StrnCmp (StringPtr, AltIdStr, StrLen (AltIdStr)) != 0) {\r | |
1926 | GuidFlag = FALSE;\r | |
1927 | NameFlag = FALSE;\r | |
1928 | PathFlag = FALSE;\r | |
1929 | } else {\r | |
1930 | Status = OutputConfigBody (StringPtr, &Result);\r | |
1931 | goto Exit;\r | |
1932 | }\r | |
1933 | }\r | |
1934 | }\r | |
1935 | \r | |
1936 | Status = EFI_NOT_FOUND;\r | |
1937 | \r | |
1938 | Exit:\r | |
1939 | \r | |
1940 | if (!EFI_ERROR (Status)) {\r | |
1941 | //\r | |
1942 | // Copy the <ConfigHdr> and <ConfigBody>\r | |
1943 | //\r | |
1944 | Length = HdrEnd - HdrStart + StrLen (Result);\r | |
1945 | *AltCfgResp = AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1946 | if (*AltCfgResp == NULL) {\r | |
1947 | Status = EFI_OUT_OF_RESOURCES;\r | |
1948 | } else {\r | |
1949 | StrnCpy (*AltCfgResp, HdrStart, HdrEnd - HdrStart);\r | |
1950 | StrCat (*AltCfgResp, Result);\r | |
1951 | Status = EFI_SUCCESS;\r | |
1952 | }\r | |
1953 | }\r | |
1954 | \r | |
1955 | SafeFreePool (GuidStr);\r | |
1956 | SafeFreePool (NameStr);\r | |
1957 | SafeFreePool (PathStr);\r | |
1958 | SafeFreePool (AltIdStr);\r | |
1959 | SafeFreePool (Result);\r | |
1960 | \r | |
1961 | return Status;\r | |
1962 | \r | |
93e3992d | 1963 | }\r |
1964 | \r | |
36fe40c2 | 1965 | \r |