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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 | |
676df92c | 130 | FreePool (DevicePathString);\r |
93e3992d | 131 | return EFI_OUT_OF_RESOURCES;\r |
132 | }\r | |
133 | \r | |
5e580cf7 | 134 | HexStringToBufInReverseOrder (*DevicePath, &Length, DevicePathString);\r |
93e3992d | 135 | \r |
676df92c | 136 | FreePool (DevicePathString);\r |
93e3992d | 137 | \r |
138 | return EFI_SUCCESS;\r | |
139 | \r | |
140 | }\r | |
141 | \r | |
142 | \r | |
93e3992d | 143 | /**\r |
144 | Generate a sub string then output it.\r | |
145 | \r | |
e90b081a | 146 | This is a internal function.\r |
147 | \r | |
93e3992d | 148 | @param String A constant string which is the prefix of the to be\r |
149 | generated string, e.g. GUID=\r | |
150 | @param BufferLen The length of the Buffer in bytes.\r | |
813acf3a | 151 | @param Buffer Points to a buffer which will be converted to be the \r |
152 | content of the generated string.\r | |
153 | @param Flag If 1, the buffer contains data for the value of GUID or PATH stored in \r | |
154 | UINT8 *; if 2, the buffer contains unicode string for the value of NAME;\r | |
155 | if 3, the buffer contains other data.\r | |
93e3992d | 156 | @param SubStr Points to the output string. It's caller's\r |
157 | responsibility to free this buffer.\r | |
158 | \r | |
159 | \r | |
160 | **/\r | |
93e3992d | 161 | VOID\r |
162 | GenerateSubStr (\r | |
163 | IN CONST EFI_STRING String,\r | |
164 | IN UINTN BufferLen,\r | |
813acf3a | 165 | IN VOID *Buffer,\r |
166 | IN UINT8 Flag,\r | |
93e3992d | 167 | OUT EFI_STRING *SubStr\r |
168 | )\r | |
169 | {\r | |
170 | UINTN Length;\r | |
171 | EFI_STRING Str;\r | |
172 | EFI_STATUS Status;\r | |
813acf3a | 173 | EFI_STRING StringHeader;\r |
93e3992d | 174 | \r |
175 | ASSERT (String != NULL && SubStr != NULL);\r | |
176 | \r | |
177 | if (Buffer == NULL) {\r | |
178 | *SubStr = AllocateCopyPool (StrSize (String), String);\r | |
179 | ASSERT (*SubStr != NULL);\r | |
180 | return ;\r | |
181 | }\r | |
182 | \r | |
813acf3a | 183 | Length = StrLen (String) + BufferLen * 2 + 1 + 1;\r |
93e3992d | 184 | Str = AllocateZeroPool (Length * sizeof (CHAR16));\r |
185 | ASSERT (Str != NULL);\r | |
186 | \r | |
187 | StrCpy (Str, String);\r | |
188 | Length = (BufferLen * 2 + 1) * sizeof (CHAR16);\r | |
189 | \r | |
813acf3a | 190 | Status = EFI_SUCCESS;\r |
191 | StringHeader = Str + StrLen (String);\r | |
192 | \r | |
193 | switch (Flag) {\r | |
194 | case 1:\r | |
5e580cf7 | 195 | Status = BufInReverseOrderToHexString (StringHeader, (UINT8 *) Buffer, BufferLen);\r |
813acf3a | 196 | break;\r |
197 | case 2:\r | |
198 | Status = UnicodeToConfigString (StringHeader, &Length, (CHAR16 *) Buffer);\r | |
199 | break;\r | |
200 | case 3:\r | |
201 | Status = BufToHexString (StringHeader, &Length, (UINT8 *) Buffer, BufferLen);\r | |
202 | //\r | |
203 | // Convert the uppercase to lowercase since <HexAf> is defined in lowercase format.\r | |
204 | //\r | |
205 | ToLower (StringHeader);\r | |
206 | break;\r | |
207 | default:\r | |
208 | break;\r | |
209 | }\r | |
93e3992d | 210 | \r |
211 | ASSERT_EFI_ERROR (Status);\r | |
212 | StrCat (Str, L"&");\r | |
213 | \r | |
214 | *SubStr = Str;\r | |
215 | }\r | |
216 | \r | |
217 | \r | |
218 | /**\r | |
219 | Retrieve the <ConfigBody> from String then output it.\r | |
220 | \r | |
e90b081a | 221 | This is a internal function.\r |
222 | \r | |
93e3992d | 223 | @param String A sub string of a configuration string in\r |
224 | <MultiConfigAltResp> format.\r | |
225 | @param ConfigBody Points to the output string. It's caller's\r | |
226 | responsibility to free this buffer.\r | |
227 | \r | |
228 | @retval EFI_INVALID_PARAMETER There is no form package in current hii database.\r | |
229 | @retval EFI_OUT_OF_RESOURCES Not enough memory to finish this operation.\r | |
230 | @retval EFI_SUCCESS All existing storage is exported.\r | |
231 | \r | |
232 | **/\r | |
93e3992d | 233 | EFI_STATUS\r |
234 | OutputConfigBody (\r | |
235 | IN EFI_STRING String,\r | |
236 | OUT EFI_STRING *ConfigBody\r | |
237 | )\r | |
238 | {\r | |
239 | EFI_STRING TmpPtr;\r | |
240 | EFI_STRING Result;\r | |
241 | UINTN Length;\r | |
242 | \r | |
243 | if (String == NULL || ConfigBody == NULL) {\r | |
244 | return EFI_INVALID_PARAMETER;\r | |
245 | }\r | |
246 | \r | |
247 | TmpPtr = StrStr (String, L"GUID=");\r | |
248 | if (TmpPtr == NULL) {\r | |
249 | //\r | |
250 | // It is the last <ConfigResp> of the incoming configuration string.\r | |
251 | //\r | |
252 | Result = AllocateCopyPool (StrSize (String), String);\r | |
253 | if (Result == NULL) {\r | |
254 | return EFI_OUT_OF_RESOURCES;\r | |
255 | } else {\r | |
256 | *ConfigBody = Result;\r | |
257 | return EFI_SUCCESS;\r | |
258 | }\r | |
259 | }\r | |
260 | \r | |
261 | Length = TmpPtr - String;\r | |
262 | Result = AllocateCopyPool (Length * sizeof (CHAR16), String);\r | |
263 | if (Result == NULL) {\r | |
264 | return EFI_OUT_OF_RESOURCES;\r | |
265 | }\r | |
266 | \r | |
267 | *(Result + Length - 1) = 0;\r | |
268 | *ConfigBody = Result;\r | |
269 | return EFI_SUCCESS;\r | |
270 | \r | |
271 | }\r | |
272 | \r | |
93e3992d | 273 | /**\r |
274 | Append a string to a multi-string format.\r | |
275 | \r | |
e90b081a | 276 | This is a internal function.\r |
277 | \r | |
93e3992d | 278 | @param MultiString String in <MultiConfigRequest>,\r |
279 | <MultiConfigAltResp>, or <MultiConfigResp>. On\r | |
280 | input, the buffer length of this string is\r | |
281 | MAX_STRING_LENGTH. On output, the buffer length\r | |
282 | might be updated.\r | |
283 | @param AppendString NULL-terminated Unicode string.\r | |
284 | \r | |
285 | @retval EFI_INVALID_PARAMETER Any incoming parameter is invalid.\r | |
286 | @retval EFI_SUCCESS AppendString is append to the end of MultiString\r | |
287 | \r | |
288 | **/\r | |
93e3992d | 289 | EFI_STATUS\r |
290 | AppendToMultiString (\r | |
291 | IN OUT EFI_STRING *MultiString,\r | |
292 | IN EFI_STRING AppendString\r | |
293 | )\r | |
294 | {\r | |
295 | UINTN AppendStringSize;\r | |
296 | UINTN MultiStringSize;\r | |
297 | \r | |
298 | if (MultiString == NULL || *MultiString == NULL || AppendString == NULL) {\r | |
299 | return EFI_INVALID_PARAMETER;\r | |
300 | }\r | |
301 | \r | |
302 | AppendStringSize = StrSize (AppendString);\r | |
303 | MultiStringSize = StrSize (*MultiString);\r | |
304 | \r | |
305 | //\r | |
306 | // Enlarge the buffer each time when length exceeds MAX_STRING_LENGTH.\r | |
307 | //\r | |
308 | if (MultiStringSize + AppendStringSize > MAX_STRING_LENGTH ||\r | |
309 | MultiStringSize > MAX_STRING_LENGTH) {\r | |
310 | *MultiString = (EFI_STRING) ReallocatePool (\r | |
93e3992d | 311 | MultiStringSize,\r |
c4648495 | 312 | MultiStringSize + AppendStringSize,\r |
313 | (VOID *) (*MultiString)\r | |
93e3992d | 314 | );\r |
315 | }\r | |
316 | \r | |
317 | //\r | |
318 | // Append the incoming string\r | |
319 | //\r | |
320 | StrCat (*MultiString, AppendString);\r | |
321 | \r | |
322 | return EFI_SUCCESS;\r | |
323 | }\r | |
324 | \r | |
325 | \r | |
326 | /**\r | |
327 | Get the value of <Number> in <BlockConfig> format, i.e. the value of OFFSET\r | |
328 | or WIDTH or VALUE.\r | |
329 | <BlockConfig> ::= 'OFFSET='<Number>&'WIDTH='<Number>&'VALUE'=<Number>\r | |
330 | \r | |
e90b081a | 331 | This is a internal function.\r |
332 | \r | |
93e3992d | 333 | @param StringPtr String in <BlockConfig> format and points to the\r |
334 | first character of <Number>.\r | |
335 | @param Number The output value. Caller takes the responsibility\r | |
336 | to free memory.\r | |
337 | @param Len Length of the <Number>, in characters.\r | |
338 | \r | |
339 | @retval EFI_OUT_OF_RESOURCES Insufficient resources to store neccessary\r | |
340 | structures.\r | |
341 | @retval EFI_SUCCESS Value of <Number> is outputted in Number\r | |
342 | successfully.\r | |
343 | \r | |
344 | **/\r | |
93e3992d | 345 | EFI_STATUS\r |
346 | GetValueOfNumber (\r | |
347 | IN EFI_STRING StringPtr,\r | |
348 | OUT UINT8 **Number,\r | |
349 | OUT UINTN *Len\r | |
350 | )\r | |
351 | {\r | |
352 | EFI_STRING TmpPtr;\r | |
353 | UINTN Length;\r | |
354 | EFI_STRING Str;\r | |
355 | UINT8 *Buf;\r | |
356 | EFI_STATUS Status;\r | |
357 | \r | |
358 | ASSERT (StringPtr != NULL && Number != NULL && Len != NULL);\r | |
359 | ASSERT (*StringPtr != 0);\r | |
360 | \r | |
361 | Buf = NULL;\r | |
362 | \r | |
363 | TmpPtr = StringPtr;\r | |
364 | while (*StringPtr != 0 && *StringPtr != L'&') {\r | |
365 | StringPtr++;\r | |
366 | }\r | |
367 | *Len = StringPtr - TmpPtr;\r | |
368 | Length = *Len + 1;\r | |
369 | \r | |
370 | Str = (EFI_STRING) AllocateZeroPool (Length * sizeof (EFI_STRING));\r | |
371 | if (Str == NULL) {\r | |
372 | Status = EFI_OUT_OF_RESOURCES;\r | |
373 | goto Exit;\r | |
374 | }\r | |
375 | CopyMem (Str, TmpPtr, *Len * sizeof (CHAR16));\r | |
376 | *(Str + *Len) = 0;\r | |
377 | \r | |
378 | Length = (Length + 1) / 2;\r | |
379 | Buf = (UINT8 *) AllocateZeroPool (Length);\r | |
380 | if (Buf == NULL) {\r | |
381 | Status = EFI_OUT_OF_RESOURCES;\r | |
382 | goto Exit;\r | |
383 | }\r | |
384 | \r | |
36fe40c2 | 385 | Status = HexStringToBuf (Buf, &Length, Str, NULL);\r |
93e3992d | 386 | if (EFI_ERROR (Status)) {\r |
387 | goto Exit;\r | |
388 | }\r | |
389 | \r | |
390 | *Number = Buf;\r | |
391 | Status = EFI_SUCCESS;\r | |
392 | \r | |
393 | Exit:\r | |
676df92c | 394 | if (Str != NULL) {\r |
395 | FreePool (Str);\r | |
396 | }\r | |
93e3992d | 397 | return Status;\r |
398 | }\r | |
399 | \r | |
400 | \r | |
401 | /**\r | |
402 | This function allows a caller to extract the current configuration\r | |
403 | for one or more named elements from one or more drivers.\r | |
404 | \r | |
405 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
406 | instance.\r | |
407 | @param Request A null-terminated Unicode string in\r | |
408 | <MultiConfigRequest> format.\r | |
409 | @param Progress On return, points to a character in the Request\r | |
410 | string. Points to the string's null terminator if\r | |
411 | request was successful. Points to the most recent\r | |
412 | & before the first failing name / value pair (or\r | |
413 | the beginning of the string if the failure is in\r | |
414 | the first name / value pair) if the request was\r | |
415 | not successful.\r | |
416 | @param Results Null-terminated Unicode string in\r | |
417 | <MultiConfigAltResp> format which has all values\r | |
418 | filled in for the names in the Request string.\r | |
419 | String to be allocated by the called function.\r | |
420 | \r | |
421 | @retval EFI_SUCCESS The Results string is filled with the values\r | |
422 | corresponding to all requested names.\r | |
423 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
424 | results that must be stored awaiting possible\r | |
425 | future protocols.\r | |
426 | @retval EFI_NOT_FOUND Routing data doesn't match any known driver.\r | |
427 | Progress set to the "G" in "GUID" of the routing\r | |
428 | header that doesn't match. Note: There is no\r | |
429 | requirement that all routing data be validated\r | |
430 | before any configuration extraction.\r | |
431 | @retval EFI_INVALID_PARAMETER For example, passing in a NULL for the Request\r | |
432 | parameter would result in this type of error. The\r | |
433 | Progress parameter is set to NULL.\r | |
434 | @retval EFI_INVALID_PARAMETER Illegal syntax. Progress set to most recent &\r | |
435 | before the error or the beginning of the string.\r | |
436 | @retval EFI_INVALID_PARAMETER Unknown name. Progress points to the & before the\r | |
437 | name in question.\r | |
438 | \r | |
439 | **/\r | |
440 | EFI_STATUS\r | |
441 | EFIAPI\r | |
442 | HiiConfigRoutingExtractConfig (\r | |
443 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
444 | IN CONST EFI_STRING Request,\r | |
445 | OUT EFI_STRING *Progress,\r | |
446 | OUT EFI_STRING *Results\r | |
447 | )\r | |
448 | {\r | |
93e3992d | 449 | HII_DATABASE_PRIVATE_DATA *Private;\r |
450 | EFI_STRING StringPtr;\r | |
451 | EFI_STRING ConfigRequest;\r | |
452 | UINTN Length;\r | |
453 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
454 | EFI_STATUS Status;\r | |
455 | LIST_ENTRY *Link;\r | |
456 | HII_DATABASE_RECORD *Database;\r | |
08e6463a | 457 | UINT8 *DevicePathPkg;\r |
93e3992d | 458 | UINT8 *CurrentDevicePath;\r |
459 | EFI_HANDLE DriverHandle;\r | |
460 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
461 | EFI_STRING AccessProgress;\r | |
462 | EFI_STRING AccessResults;\r | |
8d00a0f1 | 463 | BOOLEAN FirstElement;\r |
93e3992d | 464 | \r |
e94358a3 | 465 | //\r |
466 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
467 | // as FALSE. But this renders the system to not 100% compliant with\r | |
468 | // UEFI 2.1. Use this with caution.\r | |
469 | //\r | |
470 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
471 | return EFI_UNSUPPORTED;\r | |
472 | }\r | |
473 | \r | |
93e3992d | 474 | if (This == NULL || Progress == NULL || Results == NULL) {\r |
475 | return EFI_INVALID_PARAMETER;\r | |
476 | }\r | |
477 | \r | |
478 | if (Request == NULL) {\r | |
479 | *Progress = NULL;\r | |
480 | return EFI_INVALID_PARAMETER;\r | |
481 | }\r | |
482 | \r | |
483 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
484 | StringPtr = Request;\r | |
485 | *Progress = StringPtr;\r | |
486 | \r | |
487 | //\r | |
488 | // The first element of <MultiConfigRequest> should be\r | |
489 | // <GuidHdr>, which is in 'GUID='<Guid> syntax.\r | |
490 | //\r | |
491 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
492 | return EFI_INVALID_PARAMETER;\r | |
493 | }\r | |
494 | \r | |
8d00a0f1 | 495 | FirstElement = TRUE;\r |
496 | \r | |
93e3992d | 497 | //\r |
498 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
499 | // Results if this fix length is insufficient.\r | |
500 | //\r | |
501 | *Results = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
502 | if (*Results == NULL) {\r | |
503 | return EFI_OUT_OF_RESOURCES;\r | |
504 | }\r | |
505 | \r | |
506 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) == 0) {\r | |
507 | //\r | |
508 | // If parsing error, set Progress to the beginning of the <MultiConfigRequest>\r | |
509 | // or most recent & before the error.\r | |
510 | //\r | |
511 | if (StringPtr == Request) {\r | |
512 | *Progress = StringPtr;\r | |
513 | } else {\r | |
514 | *Progress = StringPtr - 1;\r | |
515 | }\r | |
516 | \r | |
517 | //\r | |
518 | // Process each <ConfigRequest> of <MultiConfigRequest>\r | |
519 | //\r | |
520 | Length = CalculateConfigStringLen (StringPtr);\r | |
521 | ConfigRequest = AllocateCopyPool ((Length + 1) * sizeof (CHAR16), StringPtr);\r | |
522 | if (ConfigRequest == NULL) {\r | |
523 | return EFI_OUT_OF_RESOURCES;\r | |
524 | }\r | |
525 | *(ConfigRequest + Length) = 0;\r | |
526 | \r | |
527 | //\r | |
528 | // Get the UEFI device path\r | |
529 | //\r | |
530 | Status = GetDevicePath (ConfigRequest, (UINT8 **) &DevicePath);\r | |
531 | if (EFI_ERROR (Status)) {\r | |
676df92c | 532 | FreePool (ConfigRequest);\r |
93e3992d | 533 | return Status;\r |
534 | }\r | |
535 | \r | |
536 | //\r | |
537 | // Find driver which matches the routing data.\r | |
538 | //\r | |
539 | DriverHandle = NULL;\r | |
540 | for (Link = Private->DatabaseList.ForwardLink;\r | |
541 | Link != &Private->DatabaseList;\r | |
542 | Link = Link->ForwardLink\r | |
543 | ) {\r | |
544 | Database = CR (Link, HII_DATABASE_RECORD, DatabaseEntry, HII_DATABASE_RECORD_SIGNATURE);\r | |
08e6463a | 545 | \r |
546 | if ((DevicePathPkg = Database->PackageList->DevicePathPkg) != NULL) {\r | |
547 | CurrentDevicePath = DevicePathPkg + sizeof (EFI_HII_PACKAGE_HEADER);\r | |
93e3992d | 548 | if (CompareMem (\r |
549 | DevicePath,\r | |
550 | CurrentDevicePath,\r | |
551 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) CurrentDevicePath)\r | |
552 | ) == 0) {\r | |
553 | DriverHandle = Database->DriverHandle;\r | |
554 | break;\r | |
555 | }\r | |
556 | }\r | |
557 | }\r | |
558 | \r | |
676df92c | 559 | FreePool (DevicePath);\r |
93e3992d | 560 | \r |
561 | if (DriverHandle == NULL) {\r | |
562 | //\r | |
563 | // Routing data does not match any known driver.\r | |
564 | // Set Progress to the 'G' in "GUID" of the routing header.\r | |
565 | //\r | |
566 | *Progress = StringPtr;\r | |
676df92c | 567 | FreePool (ConfigRequest);\r |
93e3992d | 568 | return EFI_NOT_FOUND;\r |
569 | }\r | |
570 | \r | |
571 | //\r | |
572 | // Call corresponding ConfigAccess protocol to extract settings\r | |
573 | //\r | |
574 | Status = gBS->HandleProtocol (\r | |
575 | DriverHandle,\r | |
576 | &gEfiHiiConfigAccessProtocolGuid,\r | |
577 | (VOID **) &ConfigAccess\r | |
578 | );\r | |
579 | ASSERT_EFI_ERROR (Status);\r | |
580 | \r | |
581 | Status = ConfigAccess->ExtractConfig (\r | |
582 | ConfigAccess,\r | |
583 | ConfigRequest,\r | |
584 | &AccessProgress,\r | |
585 | &AccessResults\r | |
586 | );\r | |
587 | if (EFI_ERROR (Status)) {\r | |
588 | //\r | |
589 | // AccessProgress indicates the parsing progress on <ConfigRequest>.\r | |
590 | // Map it to the progress on <MultiConfigRequest> then return it.\r | |
591 | //\r | |
8d00a0f1 | 592 | *Progress = StrStr (StringPtr, AccessProgress);\r |
676df92c | 593 | FreePool (ConfigRequest);\r |
93e3992d | 594 | return Status;\r |
595 | }\r | |
596 | \r | |
597 | //\r | |
8d00a0f1 | 598 | // Attach this <ConfigAltResp> to a <MultiConfigAltResp>. There is a '&'\r |
599 | // which seperates the first <ConfigAltResp> and the following ones.\r | |
93e3992d | 600 | //\r |
601 | ASSERT (*AccessProgress == 0);\r | |
8d00a0f1 | 602 | \r |
603 | if (!FirstElement) {\r | |
604 | Status = AppendToMultiString (Results, L"&");\r | |
605 | ASSERT_EFI_ERROR (Status);\r | |
606 | }\r | |
607 | \r | |
93e3992d | 608 | Status = AppendToMultiString (Results, AccessResults);\r |
609 | ASSERT_EFI_ERROR (Status);\r | |
8d00a0f1 | 610 | \r |
611 | FirstElement = FALSE;\r | |
612 | \r | |
676df92c | 613 | FreePool (AccessResults);\r |
93e3992d | 614 | AccessResults = NULL;\r |
676df92c | 615 | FreePool (ConfigRequest);\r |
93e3992d | 616 | ConfigRequest = NULL;\r |
617 | \r | |
618 | //\r | |
619 | // Go to next <ConfigRequest> (skip '&').\r | |
620 | //\r | |
621 | StringPtr += Length;\r | |
622 | if (*StringPtr == 0) {\r | |
623 | *Progress = StringPtr;\r | |
624 | break;\r | |
625 | }\r | |
626 | \r | |
627 | StringPtr++;\r | |
628 | \r | |
629 | }\r | |
630 | \r | |
631 | return EFI_SUCCESS;\r | |
93e3992d | 632 | \r |
633 | }\r | |
634 | \r | |
635 | \r | |
636 | /**\r | |
637 | This function allows the caller to request the current configuration for the\r | |
638 | entirety of the current HII database and returns the data in a\r | |
639 | null-terminated Unicode string.\r | |
640 | \r | |
641 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
642 | instance.\r | |
643 | @param Results Null-terminated Unicode string in\r | |
644 | <MultiConfigAltResp> format which has all values\r | |
645 | filled in for the names in the Request string.\r | |
646 | String to be allocated by the called function.\r | |
647 | De-allocation is up to the caller.\r | |
648 | \r | |
649 | @retval EFI_SUCCESS The Results string is filled with the values\r | |
650 | corresponding to all requested names.\r | |
651 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
652 | results that must be stored awaiting possible\r | |
653 | future protocols.\r | |
654 | @retval EFI_INVALID_PARAMETER For example, passing in a NULL for the Results\r | |
655 | parameter would result in this type of error.\r | |
656 | \r | |
657 | **/\r | |
658 | EFI_STATUS\r | |
659 | EFIAPI\r | |
660 | HiiConfigRoutingExportConfig (\r | |
661 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
662 | OUT EFI_STRING *Results\r | |
663 | )\r | |
664 | {\r | |
93e3992d | 665 | EFI_STATUS Status;\r |
93e3992d | 666 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r |
8d00a0f1 | 667 | EFI_STRING AccessResults; \r |
668 | UINTN Index;\r | |
669 | EFI_HANDLE *ConfigAccessHandles;\r | |
670 | UINTN NumberConfigAccessHandles;\r | |
671 | BOOLEAN FirstElement;\r | |
93e3992d | 672 | \r |
e94358a3 | 673 | //\r |
674 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
675 | // as FALSE. But this renders the system to not 100% compliant with\r | |
676 | // UEFI 2.1. Use this with caution.\r | |
677 | //\r | |
678 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
679 | return EFI_UNSUPPORTED;\r | |
680 | }\r | |
681 | \r | |
93e3992d | 682 | if (This == NULL || Results == NULL) {\r |
683 | return EFI_INVALID_PARAMETER;\r | |
684 | }\r | |
685 | \r | |
93e3992d | 686 | //\r |
687 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
688 | // Results if this fix length is insufficient.\r | |
689 | //\r | |
690 | *Results = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
691 | if (*Results == NULL) {\r | |
692 | return EFI_OUT_OF_RESOURCES;\r | |
693 | }\r | |
694 | \r | |
8d00a0f1 | 695 | NumberConfigAccessHandles = 0;\r |
696 | Status = gBS->LocateHandleBuffer (\r | |
697 | ByProtocol,\r | |
698 | &gEfiHiiConfigAccessProtocolGuid,\r | |
699 | NULL,\r | |
700 | &NumberConfigAccessHandles,\r | |
701 | &ConfigAccessHandles\r | |
702 | );\r | |
703 | if (EFI_ERROR (Status)) {\r | |
704 | return Status;\r | |
705 | }\r | |
93e3992d | 706 | \r |
8d00a0f1 | 707 | FirstElement = TRUE;\r |
93e3992d | 708 | \r |
8d00a0f1 | 709 | for (Index = 0; Index < NumberConfigAccessHandles; Index++) {\r |
93e3992d | 710 | Status = gBS->HandleProtocol (\r |
8d00a0f1 | 711 | ConfigAccessHandles[Index],\r |
93e3992d | 712 | &gEfiHiiConfigAccessProtocolGuid,\r |
8d00a0f1 | 713 | (VOID **) &ConfigAccess\r |
93e3992d | 714 | );\r |
8d00a0f1 | 715 | if (EFI_ERROR (Status)) {\r |
716 | continue;\r | |
717 | }\r | |
93e3992d | 718 | \r |
719 | Status = ConfigAccess->ExtractConfig (\r | |
720 | ConfigAccess,\r | |
8d00a0f1 | 721 | NULL,\r |
722 | NULL,\r | |
93e3992d | 723 | &AccessResults\r |
724 | );\r | |
8d00a0f1 | 725 | if (!EFI_ERROR (Status)) {\r |
726 | //\r | |
727 | // Attach this <ConfigAltResp> to a <MultiConfigAltResp>. There is a '&'\r | |
728 | // which seperates the first <ConfigAltResp> and the following ones. \r | |
729 | //\r | |
730 | if (!FirstElement) {\r | |
731 | Status = AppendToMultiString (Results, L"&");\r | |
732 | ASSERT_EFI_ERROR (Status);\r | |
676df92c | 733 | }\r |
8d00a0f1 | 734 | \r |
735 | Status = AppendToMultiString (Results, AccessResults);\r | |
736 | ASSERT_EFI_ERROR (Status);\r | |
93e3992d | 737 | \r |
8d00a0f1 | 738 | FirstElement = FALSE;\r |
739 | \r | |
740 | FreePool (AccessResults);\r | |
741 | AccessResults = NULL;\r | |
742 | }\r | |
93e3992d | 743 | }\r |
f4113e1f | 744 | FreePool (ConfigAccessHandles);\r |
93e3992d | 745 | \r |
8d00a0f1 | 746 | return EFI_SUCCESS; \r |
93e3992d | 747 | }\r |
748 | \r | |
749 | \r | |
750 | /**\r | |
751 | This function processes the results of processing forms and routes it to the\r | |
752 | appropriate handlers or storage.\r | |
753 | \r | |
754 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
755 | instance.\r | |
756 | @param Configuration A null-terminated Unicode string in\r | |
757 | <MulltiConfigResp> format.\r | |
758 | @param Progress A pointer to a string filled in with the offset of\r | |
759 | the most recent & before the first failing name /\r | |
760 | value pair (or the beginning of the string if the\r | |
761 | failure is in the first name / value pair) or the\r | |
762 | terminating NULL if all was successful.\r | |
763 | \r | |
764 | @retval EFI_SUCCESS The results have been distributed or are awaiting\r | |
765 | distribution.\r | |
766 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
767 | results that must be stored awaiting possible\r | |
768 | future protocols.\r | |
769 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the Configuration parameter\r | |
770 | would result in this type of error.\r | |
771 | @retval EFI_NOT_FOUND Target for the specified routing data was not\r | |
772 | found.\r | |
773 | \r | |
774 | **/\r | |
775 | EFI_STATUS\r | |
776 | EFIAPI\r | |
813acf3a | 777 | HiiConfigRoutingRouteConfig (\r |
93e3992d | 778 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r |
779 | IN CONST EFI_STRING Configuration,\r | |
780 | OUT EFI_STRING *Progress\r | |
781 | )\r | |
782 | {\r | |
93e3992d | 783 | HII_DATABASE_PRIVATE_DATA *Private;\r |
784 | EFI_STRING StringPtr;\r | |
785 | EFI_STRING ConfigResp;\r | |
786 | UINTN Length;\r | |
787 | EFI_STATUS Status;\r | |
788 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
789 | LIST_ENTRY *Link;\r | |
790 | HII_DATABASE_RECORD *Database;\r | |
08e6463a | 791 | UINT8 *DevicePathPkg;\r |
93e3992d | 792 | UINT8 *CurrentDevicePath;\r |
793 | EFI_HANDLE DriverHandle;\r | |
794 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
795 | EFI_STRING AccessProgress;\r | |
93e3992d | 796 | \r |
e94358a3 | 797 | //\r |
798 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
799 | // as FALSE. But this renders the system to not 100% compliant with\r | |
800 | // UEFI 2.1. Use this with caution.\r | |
801 | //\r | |
802 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
803 | return EFI_UNSUPPORTED;\r | |
804 | }\r | |
805 | \r | |
93e3992d | 806 | if (This == NULL || Progress == NULL) {\r |
807 | return EFI_INVALID_PARAMETER;\r | |
808 | }\r | |
809 | \r | |
810 | if (Configuration == NULL) {\r | |
811 | *Progress = NULL;\r | |
812 | return EFI_INVALID_PARAMETER;\r | |
813 | }\r | |
814 | \r | |
815 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
816 | StringPtr = Configuration;\r | |
817 | *Progress = StringPtr;\r | |
818 | \r | |
819 | //\r | |
820 | // The first element of <MultiConfigResp> should be\r | |
821 | // <GuidHdr>, which is in 'GUID='<Guid> syntax.\r | |
822 | //\r | |
823 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
824 | return EFI_INVALID_PARAMETER;\r | |
825 | }\r | |
826 | \r | |
827 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) == 0) {\r | |
828 | //\r | |
829 | // If parsing error, set Progress to the beginning of the <MultiConfigResp>\r | |
830 | // or most recent & before the error.\r | |
831 | //\r | |
832 | if (StringPtr == Configuration) {\r | |
833 | *Progress = StringPtr;\r | |
834 | } else {\r | |
835 | *Progress = StringPtr - 1;\r | |
836 | }\r | |
837 | \r | |
838 | //\r | |
839 | // Process each <ConfigResp> of <MultiConfigResp>\r | |
840 | //\r | |
841 | Length = CalculateConfigStringLen (StringPtr);\r | |
842 | ConfigResp = AllocateCopyPool ((Length + 1) * sizeof (CHAR16), StringPtr);\r | |
843 | if (ConfigResp == NULL) {\r | |
844 | return EFI_OUT_OF_RESOURCES;\r | |
845 | }\r | |
846 | //\r | |
847 | // Append '\0' to the end of ConfigRequest\r | |
848 | //\r | |
849 | *(ConfigResp + Length) = 0;\r | |
850 | \r | |
851 | //\r | |
852 | // Get the UEFI device path\r | |
853 | //\r | |
854 | Status = GetDevicePath (ConfigResp, (UINT8 **) &DevicePath);\r | |
855 | if (EFI_ERROR (Status)) {\r | |
676df92c | 856 | FreePool (ConfigResp);\r |
93e3992d | 857 | return Status;\r |
858 | }\r | |
859 | \r | |
860 | //\r | |
861 | // Find driver which matches the routing data.\r | |
862 | //\r | |
863 | DriverHandle = NULL;\r | |
864 | for (Link = Private->DatabaseList.ForwardLink;\r | |
865 | Link != &Private->DatabaseList;\r | |
866 | Link = Link->ForwardLink\r | |
867 | ) {\r | |
868 | Database = CR (Link, HII_DATABASE_RECORD, DatabaseEntry, HII_DATABASE_RECORD_SIGNATURE);\r | |
08e6463a | 869 | \r |
870 | if ((DevicePathPkg = Database->PackageList->DevicePathPkg) != NULL) {\r | |
871 | CurrentDevicePath = DevicePathPkg + sizeof (EFI_HII_PACKAGE_HEADER);\r | |
93e3992d | 872 | if (CompareMem (\r |
873 | DevicePath,\r | |
874 | CurrentDevicePath,\r | |
875 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) CurrentDevicePath)\r | |
876 | ) == 0) {\r | |
877 | DriverHandle = Database->DriverHandle;\r | |
878 | break;\r | |
879 | }\r | |
880 | }\r | |
881 | }\r | |
882 | \r | |
676df92c | 883 | FreePool (DevicePath);\r |
93e3992d | 884 | \r |
885 | if (DriverHandle == NULL) {\r | |
886 | //\r | |
887 | // Routing data does not match any known driver.\r | |
888 | // Set Progress to the 'G' in "GUID" of the routing header.\r | |
889 | //\r | |
890 | *Progress = StringPtr;\r | |
676df92c | 891 | FreePool (ConfigResp);\r |
93e3992d | 892 | return EFI_NOT_FOUND;\r |
893 | }\r | |
894 | \r | |
895 | //\r | |
896 | // Call corresponding ConfigAccess protocol to route settings\r | |
897 | //\r | |
898 | Status = gBS->HandleProtocol (\r | |
899 | DriverHandle,\r | |
900 | &gEfiHiiConfigAccessProtocolGuid,\r | |
901 | (VOID **) &ConfigAccess\r | |
902 | );\r | |
903 | ASSERT_EFI_ERROR (Status);\r | |
904 | \r | |
905 | Status = ConfigAccess->RouteConfig (\r | |
906 | ConfigAccess,\r | |
907 | ConfigResp,\r | |
908 | &AccessProgress\r | |
909 | );\r | |
910 | \r | |
911 | if (EFI_ERROR (Status)) {\r | |
912 | //\r | |
913 | // AccessProgress indicates the parsing progress on <ConfigResp>.\r | |
914 | // Map it to the progress on <MultiConfigResp> then return it.\r | |
915 | //\r | |
8d00a0f1 | 916 | *Progress = StrStr (StringPtr, AccessProgress);\r |
93e3992d | 917 | \r |
676df92c | 918 | FreePool (ConfigResp);\r |
93e3992d | 919 | return Status;\r |
920 | }\r | |
921 | \r | |
676df92c | 922 | FreePool (ConfigResp);\r |
93e3992d | 923 | ConfigResp = NULL;\r |
924 | \r | |
925 | //\r | |
926 | // Go to next <ConfigResp> (skip '&').\r | |
927 | //\r | |
928 | StringPtr += Length;\r | |
929 | if (*StringPtr == 0) {\r | |
930 | *Progress = StringPtr;\r | |
931 | break;\r | |
932 | }\r | |
933 | \r | |
934 | StringPtr++;\r | |
935 | \r | |
936 | }\r | |
937 | \r | |
938 | return EFI_SUCCESS;\r | |
93e3992d | 939 | }\r |
940 | \r | |
941 | \r | |
942 | /**\r | |
943 | This helper function is to be called by drivers to map configuration data\r | |
944 | stored in byte array ("block") formats such as UEFI Variables into current\r | |
945 | configuration strings.\r | |
946 | \r | |
947 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
948 | instance.\r | |
949 | @param ConfigRequest A null-terminated Unicode string in\r | |
950 | <ConfigRequest> format.\r | |
951 | @param Block Array of bytes defining the block's configuration.\r | |
952 | @param BlockSize Length in bytes of Block.\r | |
953 | @param Config Filled-in configuration string. String allocated\r | |
954 | by the function. Returned only if call is\r | |
955 | successful.\r | |
956 | @param Progress A pointer to a string filled in with the offset of\r | |
957 | the most recent & before the first failing\r | |
958 | name/value pair (or the beginning of the string if\r | |
959 | the failure is in the first name / value pair) or\r | |
960 | the terminating NULL if all was successful.\r | |
961 | \r | |
962 | @retval EFI_SUCCESS The request succeeded. Progress points to the null\r | |
963 | terminator at the end of the ConfigRequest\r | |
964 | string.\r | |
965 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate Config. Progress\r | |
966 | points to the first character of ConfigRequest.\r | |
967 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the ConfigRequest or\r | |
968 | Block parameter would result in this type of\r | |
969 | error. Progress points to the first character of\r | |
970 | ConfigRequest.\r | |
971 | @retval EFI_DEVICE_ERROR Block not large enough. Progress undefined.\r | |
972 | @retval EFI_INVALID_PARAMETER Encountered non <BlockName> formatted string.\r | |
973 | Block is left updated and Progress points at\r | |
974 | the "&" preceding the first non-<BlockName>.\r | |
975 | \r | |
976 | **/\r | |
977 | EFI_STATUS\r | |
978 | EFIAPI\r | |
979 | HiiBlockToConfig (\r | |
980 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
981 | IN CONST EFI_STRING ConfigRequest,\r | |
982 | IN CONST UINT8 *Block,\r | |
983 | IN CONST UINTN BlockSize,\r | |
984 | OUT EFI_STRING *Config,\r | |
985 | OUT EFI_STRING *Progress\r | |
986 | )\r | |
987 | {\r | |
988 | HII_DATABASE_PRIVATE_DATA *Private;\r | |
989 | EFI_STRING StringPtr;\r | |
990 | UINTN Length;\r | |
991 | EFI_STATUS Status;\r | |
992 | EFI_STRING TmpPtr;\r | |
993 | UINT8 *TmpBuffer;\r | |
994 | UINTN Offset;\r | |
995 | UINTN Width;\r | |
996 | UINT8 *Value;\r | |
997 | EFI_STRING ValueStr;\r | |
998 | EFI_STRING ConfigElement;\r | |
999 | \r | |
1000 | if (This == NULL || Progress == NULL || Config == NULL) {\r | |
1001 | return EFI_INVALID_PARAMETER;\r | |
1002 | }\r | |
1003 | \r | |
1004 | if (Block == NULL || ConfigRequest == NULL) {\r | |
1005 | *Progress = ConfigRequest;\r | |
1006 | return EFI_INVALID_PARAMETER;\r | |
1007 | }\r | |
1008 | \r | |
1009 | \r | |
1010 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
1011 | ASSERT (Private != NULL);\r | |
1012 | \r | |
1013 | StringPtr = ConfigRequest;\r | |
1014 | ValueStr = NULL;\r | |
1015 | Value = NULL;\r | |
1016 | ConfigElement = NULL;\r | |
1017 | \r | |
1018 | //\r | |
1019 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
1020 | // Results if this fix length is insufficient.\r | |
1021 | //\r | |
1022 | *Config = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
1023 | if (*Config == NULL) {\r | |
1024 | return EFI_OUT_OF_RESOURCES;\r | |
1025 | }\r | |
1026 | \r | |
1027 | //\r | |
1028 | // Jump <ConfigHdr>\r | |
1029 | //\r | |
1030 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1031 | *Progress = StringPtr;\r | |
1032 | Status = EFI_INVALID_PARAMETER;\r | |
1033 | goto Exit;\r | |
1034 | }\r | |
1035 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"PATH=", StrLen (L"PATH=")) != 0) {\r | |
1036 | StringPtr++;\r | |
1037 | }\r | |
1038 | if (*StringPtr == 0) {\r | |
1039 | *Progress = StringPtr;\r | |
1040 | Status = EFI_INVALID_PARAMETER;\r | |
1041 | goto Exit;\r | |
1042 | }\r | |
08e6463a | 1043 | \r |
1044 | while (*StringPtr != L'&' && *StringPtr != 0) {\r | |
1045 | StringPtr++;\r | |
1046 | }\r | |
1047 | if (*StringPtr == 0) {\r | |
1048 | *Progress = StringPtr;\r | |
1049 | Status = EFI_INVALID_PARAMETER;\r | |
1050 | goto Exit;\r | |
1051 | }\r | |
1052 | //\r | |
1053 | // Skip '&'\r | |
1054 | //\r | |
1055 | StringPtr++;\r | |
93e3992d | 1056 | \r |
1057 | //\r | |
1058 | // Copy <ConfigHdr> and an additional '&' to <ConfigResp>\r | |
1059 | //\r | |
1060 | Length = StringPtr - ConfigRequest;\r | |
1061 | CopyMem (*Config, ConfigRequest, Length * sizeof (CHAR16));\r | |
1062 | \r | |
1063 | //\r | |
1064 | // Parse each <RequestElement> if exists\r | |
1065 | // Only <BlockName> format is supported by this help function.\r | |
1066 | // <BlockName> ::= 'OFFSET='<Number>&'WIDTH='<Number>\r | |
1067 | //\r | |
1068 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"OFFSET=", StrLen (L"OFFSET=")) == 0) {\r | |
1069 | //\r | |
1070 | // Back up the header of one <BlockName>\r | |
1071 | //\r | |
1072 | TmpPtr = StringPtr;\r | |
1073 | \r | |
1074 | StringPtr += StrLen (L"OFFSET=");\r | |
1075 | //\r | |
1076 | // Get Offset\r | |
1077 | //\r | |
1078 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1079 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1080 | *Progress = ConfigRequest;\r | |
1081 | goto Exit;\r | |
1082 | }\r | |
1083 | Offset = 0;\r | |
1084 | CopyMem (\r | |
1085 | &Offset,\r | |
1086 | TmpBuffer,\r | |
1087 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1088 | );\r | |
676df92c | 1089 | FreePool (TmpBuffer);\r |
93e3992d | 1090 | \r |
1091 | StringPtr += Length;\r | |
1092 | if (StrnCmp (StringPtr, L"&WIDTH=", StrLen (L"&WIDTH=")) != 0) {\r | |
1093 | *Progress = StringPtr - Length - StrLen (L"OFFSET=") - 1;\r | |
1094 | Status = EFI_INVALID_PARAMETER;\r | |
1095 | goto Exit;\r | |
1096 | }\r | |
1097 | StringPtr += StrLen (L"&WIDTH=");\r | |
1098 | \r | |
1099 | //\r | |
1100 | // Get Width\r | |
1101 | //\r | |
1102 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1103 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1104 | *Progress = ConfigRequest;\r | |
1105 | goto Exit;\r | |
1106 | }\r | |
1107 | Width = 0;\r | |
1108 | CopyMem (\r | |
1109 | &Width,\r | |
1110 | TmpBuffer,\r | |
1111 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1112 | );\r | |
676df92c | 1113 | FreePool (TmpBuffer);\r |
93e3992d | 1114 | \r |
1115 | StringPtr += Length;\r | |
1116 | if (*StringPtr != 0 && *StringPtr != L'&') {\r | |
1117 | *Progress = StringPtr - Length - StrLen (L"&WIDTH=");\r | |
1118 | Status = EFI_INVALID_PARAMETER;\r | |
1119 | goto Exit;\r | |
1120 | }\r | |
1121 | \r | |
1122 | //\r | |
1123 | // Calculate Value and convert it to hex string.\r | |
1124 | //\r | |
1125 | if (Offset + Width > BlockSize) {\r | |
1126 | *Progress = StringPtr;\r | |
1127 | Status = EFI_DEVICE_ERROR;\r | |
1128 | goto Exit;\r | |
1129 | }\r | |
1130 | \r | |
1131 | Value = (UINT8 *) AllocateZeroPool (Width);\r | |
1132 | if (Value == NULL) {\r | |
1133 | *Progress = ConfigRequest;\r | |
1134 | Status = EFI_OUT_OF_RESOURCES;\r | |
1135 | goto Exit;\r | |
1136 | }\r | |
1137 | \r | |
1138 | CopyMem (Value, (UINT8 *) Block + Offset, Width);\r | |
1139 | \r | |
1140 | Length = Width * 2 + 1;\r | |
1141 | ValueStr = (EFI_STRING) AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1142 | if (ValueStr == NULL) {\r | |
1143 | *Progress = ConfigRequest;\r | |
1144 | Status = EFI_OUT_OF_RESOURCES;\r | |
1145 | goto Exit;\r | |
1146 | }\r | |
1147 | \r | |
36fe40c2 | 1148 | Status = BufToHexString (ValueStr, &Length, Value, Width);\r |
93e3992d | 1149 | ASSERT_EFI_ERROR (Status);\r |
813acf3a | 1150 | ToLower (ValueStr);\r |
1151 | \r | |
676df92c | 1152 | FreePool (Value);\r |
93e3992d | 1153 | Value = NULL;\r |
1154 | \r | |
1155 | //\r | |
1156 | // Build a ConfigElement\r | |
1157 | //\r | |
1158 | Length += StringPtr - TmpPtr + 1 + StrLen (L"VALUE=");\r | |
1159 | ConfigElement = (EFI_STRING) AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1160 | if (ConfigElement == NULL) {\r | |
1161 | Status = EFI_OUT_OF_RESOURCES;\r | |
1162 | goto Exit;\r | |
1163 | }\r | |
1164 | CopyMem (ConfigElement, TmpPtr, (StringPtr - TmpPtr + 1) * sizeof (CHAR16));\r | |
1165 | if (*StringPtr == 0) {\r | |
1166 | *(ConfigElement + (StringPtr - TmpPtr)) = L'&';\r | |
1167 | }\r | |
1168 | *(ConfigElement + (StringPtr - TmpPtr) + 1) = 0;\r | |
1169 | StrCat (ConfigElement, L"VALUE=");\r | |
1170 | StrCat (ConfigElement, ValueStr);\r | |
1171 | \r | |
1172 | AppendToMultiString (Config, ConfigElement);\r | |
1173 | \r | |
676df92c | 1174 | FreePool (ConfigElement);\r |
1175 | FreePool (ValueStr);\r | |
93e3992d | 1176 | ConfigElement = NULL;\r |
1177 | ValueStr = NULL;\r | |
1178 | \r | |
1179 | //\r | |
1180 | // If '\0', parsing is finished. Otherwise skip '&' to continue\r | |
1181 | //\r | |
1182 | if (*StringPtr == 0) {\r | |
1183 | break;\r | |
1184 | }\r | |
1185 | AppendToMultiString (Config, L"&");\r | |
1186 | StringPtr++;\r | |
1187 | \r | |
1188 | }\r | |
1189 | \r | |
1190 | if (*StringPtr != 0) {\r | |
1191 | *Progress = StringPtr - 1;\r | |
1192 | Status = EFI_INVALID_PARAMETER;\r | |
1193 | goto Exit;\r | |
1194 | }\r | |
1195 | \r | |
1196 | *Progress = StringPtr;\r | |
1197 | return EFI_SUCCESS;\r | |
1198 | \r | |
1199 | Exit:\r | |
676df92c | 1200 | FreePool (*Config);\r |
1201 | if (ValueStr != NULL) {\r | |
1202 | FreePool (ValueStr);\r | |
1203 | }\r | |
1204 | if (Value != NULL) {\r | |
1205 | FreePool (Value);\r | |
1206 | }\r | |
69367b5b | 1207 | if (ConfigElement != NULL) {\r |
676df92c | 1208 | FreePool (ConfigElement);\r |
1209 | }\r | |
93e3992d | 1210 | \r |
1211 | return Status;\r | |
1212 | \r | |
1213 | }\r | |
1214 | \r | |
1215 | \r | |
1216 | /**\r | |
1217 | This helper function is to be called by drivers to map configuration strings\r | |
1218 | to configurations stored in byte array ("block") formats such as UEFI Variables.\r | |
1219 | \r | |
1220 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
1221 | instance.\r | |
1222 | @param ConfigResp A null-terminated Unicode string in <ConfigResp>\r | |
1223 | format.\r | |
1224 | @param Block A possibly null array of bytes representing the\r | |
1225 | current block. Only bytes referenced in the\r | |
1226 | ConfigResp string in the block are modified. If\r | |
1227 | this parameter is null or if the *BlockSize\r | |
1228 | parameter is (on input) shorter than required by\r | |
1229 | the Configuration string, only the BlockSize\r | |
1230 | parameter is updated and an appropriate status\r | |
1231 | (see below) is returned.\r | |
1232 | @param BlockSize The length of the Block in units of UINT8. On\r | |
1233 | input, this is the size of the Block. On output,\r | |
1234 | if successful, contains the index of the last\r | |
1235 | modified byte in the Block.\r | |
1236 | @param Progress On return, points to an element of the ConfigResp\r | |
1237 | string filled in with the offset of the most\r | |
1238 | recent '&' before the first failing name / value\r | |
1239 | pair (or the beginning of the string if the\r | |
1240 | failure is in the first name / value pair) or the\r | |
1241 | terminating NULL if all was successful.\r | |
1242 | \r | |
1243 | @retval EFI_SUCCESS The request succeeded. Progress points to the null\r | |
1244 | terminator at the end of the ConfigResp string.\r | |
1245 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate Config. Progress\r | |
1246 | points to the first character of ConfigResp.\r | |
1247 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the ConfigResp or\r | |
1248 | Block parameter would result in this type of\r | |
1249 | error. Progress points to the first character of\r | |
1250 | ConfigResp.\r | |
1251 | @retval EFI_INVALID_PARAMETER Encountered non <BlockName> formatted name /\r | |
1252 | value pair. Block is left updated and\r | |
1253 | Progress points at the '&' preceding the first\r | |
1254 | non-<BlockName>.\r | |
1255 | \r | |
1256 | **/\r | |
1257 | EFI_STATUS\r | |
1258 | EFIAPI\r | |
1259 | HiiConfigToBlock (\r | |
1260 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
1261 | IN CONST EFI_STRING ConfigResp,\r | |
1262 | IN OUT UINT8 *Block,\r | |
1263 | IN OUT UINTN *BlockSize,\r | |
1264 | OUT EFI_STRING *Progress\r | |
1265 | )\r | |
1266 | {\r | |
1267 | HII_DATABASE_PRIVATE_DATA *Private;\r | |
1268 | EFI_STRING StringPtr;\r | |
1269 | UINTN Length;\r | |
1270 | EFI_STATUS Status;\r | |
1271 | UINT8 *TmpBuffer;\r | |
1272 | UINTN Offset;\r | |
1273 | UINTN Width;\r | |
1274 | UINT8 *Value;\r | |
1275 | UINTN BufferSize;\r | |
1276 | \r | |
1277 | if (This == NULL || BlockSize == NULL || Progress == NULL) {\r | |
1278 | return EFI_INVALID_PARAMETER;\r | |
1279 | }\r | |
1280 | \r | |
1281 | if (ConfigResp == NULL || Block == NULL) {\r | |
1282 | *Progress = ConfigResp;\r | |
1283 | return EFI_INVALID_PARAMETER;\r | |
1284 | }\r | |
1285 | \r | |
1286 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
1287 | ASSERT (Private != NULL);\r | |
1288 | \r | |
1289 | StringPtr = ConfigResp;\r | |
1290 | BufferSize = *BlockSize;\r | |
1291 | Value = NULL;\r | |
1292 | \r | |
1293 | //\r | |
1294 | // Jump <ConfigHdr>\r | |
1295 | //\r | |
1296 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1297 | *Progress = StringPtr;\r | |
1298 | Status = EFI_INVALID_PARAMETER;\r | |
1299 | goto Exit;\r | |
1300 | }\r | |
1301 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"PATH=", StrLen (L"PATH=")) != 0) {\r | |
1302 | StringPtr++;\r | |
1303 | }\r | |
1304 | if (*StringPtr == 0) {\r | |
1305 | *Progress = StringPtr;\r | |
1306 | Status = EFI_INVALID_PARAMETER;\r | |
1307 | goto Exit;\r | |
1308 | }\r | |
08e6463a | 1309 | \r |
1310 | while (*StringPtr != L'&' && *StringPtr != 0) {\r | |
1311 | StringPtr++;\r | |
1312 | }\r | |
1313 | if (*StringPtr == 0) {\r | |
1314 | *Progress = StringPtr;\r | |
1315 | Status = EFI_INVALID_PARAMETER;\r | |
1316 | goto Exit;\r | |
1317 | }\r | |
1318 | //\r | |
1319 | // Skip '&'\r | |
1320 | //\r | |
1321 | StringPtr++;\r | |
93e3992d | 1322 | \r |
1323 | //\r | |
1324 | // Parse each <ConfigElement> if exists\r | |
1325 | // Only <BlockConfig> format is supported by this help function.\r | |
1326 | // <BlockConfig> ::= 'OFFSET='<Number>&'WIDTH='<Number>&'VALUE='<Number>\r | |
1327 | //\r | |
1328 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"OFFSET=", StrLen (L"OFFSET=")) == 0) {\r | |
1329 | StringPtr += StrLen (L"OFFSET=");\r | |
1330 | //\r | |
1331 | // Get Offset\r | |
1332 | //\r | |
1333 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1334 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1335 | *Progress = ConfigResp;\r | |
1336 | goto Exit;\r | |
1337 | }\r | |
1338 | Offset = 0;\r | |
1339 | CopyMem (\r | |
1340 | &Offset,\r | |
1341 | TmpBuffer,\r | |
1342 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1343 | );\r | |
676df92c | 1344 | FreePool (TmpBuffer);\r |
93e3992d | 1345 | \r |
1346 | StringPtr += Length;\r | |
1347 | if (StrnCmp (StringPtr, L"&WIDTH=", StrLen (L"&WIDTH=")) != 0) {\r | |
1348 | *Progress = StringPtr - Length - StrLen (L"OFFSET=") - 1;\r | |
1349 | Status = EFI_INVALID_PARAMETER;\r | |
1350 | goto Exit;\r | |
1351 | }\r | |
1352 | StringPtr += StrLen (L"&WIDTH=");\r | |
1353 | \r | |
1354 | //\r | |
1355 | // Get Width\r | |
1356 | //\r | |
1357 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1358 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1359 | *Progress = ConfigResp;\r | |
1360 | goto Exit;\r | |
1361 | }\r | |
1362 | Width = 0;\r | |
1363 | CopyMem (\r | |
1364 | &Width,\r | |
1365 | TmpBuffer,\r | |
1366 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1367 | );\r | |
676df92c | 1368 | FreePool (TmpBuffer);\r |
93e3992d | 1369 | \r |
1370 | StringPtr += Length;\r | |
1371 | if (StrnCmp (StringPtr, L"&VALUE=", StrLen (L"&VALUE=")) != 0) {\r | |
1372 | *Progress = StringPtr - Length - StrLen (L"&WIDTH=");\r | |
1373 | Status = EFI_INVALID_PARAMETER;\r | |
1374 | goto Exit;\r | |
1375 | }\r | |
1376 | StringPtr += StrLen (L"&VALUE=");\r | |
1377 | \r | |
1378 | //\r | |
1379 | // Get Value\r | |
1380 | //\r | |
1381 | Status = GetValueOfNumber (StringPtr, &Value, &Length);\r | |
1382 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1383 | *Progress = ConfigResp;\r | |
1384 | goto Exit;\r | |
1385 | }\r | |
1386 | \r | |
1387 | StringPtr += Length;\r | |
1388 | if (*StringPtr != 0 && *StringPtr != L'&') {\r | |
1389 | *Progress = StringPtr - Length - 7;\r | |
1390 | Status = EFI_INVALID_PARAMETER;\r | |
1391 | goto Exit;\r | |
1392 | }\r | |
1393 | \r | |
1394 | //\r | |
1395 | // Update the Block with configuration info\r | |
1396 | //\r | |
1397 | \r | |
1398 | if (Offset + Width > BufferSize) {\r | |
1399 | return EFI_DEVICE_ERROR;\r | |
1400 | }\r | |
1401 | \r | |
1402 | CopyMem (Block + Offset, Value, Width);\r | |
1403 | *BlockSize = Offset + Width - 1;\r | |
1404 | \r | |
676df92c | 1405 | FreePool (Value);\r |
93e3992d | 1406 | Value = NULL;\r |
1407 | \r | |
1408 | //\r | |
1409 | // If '\0', parsing is finished. Otherwise skip '&' to continue\r | |
1410 | //\r | |
1411 | if (*StringPtr == 0) {\r | |
1412 | break;\r | |
1413 | }\r | |
1414 | \r | |
1415 | StringPtr++;\r | |
1416 | }\r | |
1417 | \r | |
1418 | if (*StringPtr != 0) {\r | |
1419 | *Progress = StringPtr - 1;\r | |
1420 | Status = EFI_INVALID_PARAMETER;\r | |
1421 | goto Exit;\r | |
1422 | }\r | |
1423 | \r | |
1424 | *Progress = StringPtr;\r | |
1425 | return EFI_SUCCESS;\r | |
1426 | \r | |
1427 | Exit:\r | |
1428 | \r | |
676df92c | 1429 | if (Value != NULL) {\r |
1430 | FreePool (Value);\r | |
1431 | }\r | |
93e3992d | 1432 | return Status;\r |
1433 | }\r | |
1434 | \r | |
1435 | \r | |
1436 | /**\r | |
1437 | This helper function is to be called by drivers to extract portions of\r | |
1438 | a larger configuration string.\r | |
1439 | \r | |
1440 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
1441 | instance.\r | |
1442 | @param Configuration A null-terminated Unicode string in\r | |
1443 | <MultiConfigAltResp> format.\r | |
1444 | @param Guid A pointer to the GUID value to search for in the\r | |
1445 | routing portion of the ConfigResp string when\r | |
1446 | retrieving the requested data. If Guid is NULL,\r | |
1447 | then all GUID values will be searched for.\r | |
1448 | @param Name A pointer to the NAME value to search for in the\r | |
1449 | routing portion of the ConfigResp string when\r | |
1450 | retrieving the requested data. If Name is NULL,\r | |
1451 | then all Name values will be searched for.\r | |
1452 | @param DevicePath A pointer to the PATH value to search for in the\r | |
1453 | routing portion of the ConfigResp string when\r | |
1454 | retrieving the requested data. If DevicePath is\r | |
1455 | NULL, then all DevicePath values will be searched\r | |
1456 | for.\r | |
1457 | @param AltCfgId A pointer to the ALTCFG value to search for in the\r | |
1458 | routing portion of the ConfigResp string when\r | |
1459 | retrieving the requested data. If this parameter\r | |
1460 | is NULL, then the current setting will be\r | |
1461 | retrieved.\r | |
1462 | @param AltCfgResp A pointer to a buffer which will be allocated by\r | |
1463 | the function which contains the retrieved string\r | |
1464 | as requested. This buffer is only allocated if\r | |
1465 | the call was successful.\r | |
1466 | \r | |
1467 | @retval EFI_SUCCESS The request succeeded. The requested data was\r | |
1468 | extracted and placed in the newly allocated\r | |
1469 | AltCfgResp buffer.\r | |
1470 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate AltCfgResp.\r | |
1471 | @retval EFI_INVALID_PARAMETER Any parameter is invalid.\r | |
1472 | @retval EFI_NOT_FOUND Target for the specified routing data was not\r | |
1473 | found.\r | |
1474 | \r | |
1475 | **/\r | |
1476 | EFI_STATUS\r | |
1477 | EFIAPI\r | |
1478 | HiiGetAltCfg (\r | |
1479 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
1480 | IN CONST EFI_STRING Configuration,\r | |
1481 | IN CONST EFI_GUID *Guid,\r | |
1482 | IN CONST EFI_STRING Name,\r | |
1483 | IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
1484 | IN CONST UINT16 *AltCfgId,\r | |
1485 | OUT EFI_STRING *AltCfgResp\r | |
1486 | )\r | |
1487 | {\r | |
93e3992d | 1488 | EFI_STATUS Status;\r |
1489 | EFI_STRING StringPtr;\r | |
e90b081a | 1490 | EFI_STRING HdrStart;\r |
1491 | EFI_STRING HdrEnd;\r | |
93e3992d | 1492 | EFI_STRING TmpPtr;\r |
1493 | UINTN Length;\r | |
e90b081a | 1494 | EFI_STRING GuidStr;\r |
1495 | EFI_STRING NameStr;\r | |
1496 | EFI_STRING PathStr;\r | |
1497 | EFI_STRING AltIdStr;\r | |
1498 | EFI_STRING Result;\r | |
1499 | BOOLEAN GuidFlag;\r | |
1500 | BOOLEAN NameFlag;\r | |
1501 | BOOLEAN PathFlag;\r | |
1502 | \r | |
e94358a3 | 1503 | //\r |
1504 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
1505 | // as FALSE. But this renders the system to not 100% compliant with\r | |
1506 | // UEFI 2.1. Use this with caution.\r | |
1507 | //\r | |
1508 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
1509 | return EFI_UNSUPPORTED;\r | |
1510 | }\r | |
1511 | \r | |
e90b081a | 1512 | HdrStart = NULL;\r |
1513 | HdrEnd = NULL;\r | |
1514 | GuidStr = NULL;\r | |
1515 | NameStr = NULL;\r | |
1516 | PathStr = NULL;\r | |
1517 | AltIdStr = NULL;\r | |
1518 | Result = NULL;\r | |
1519 | GuidFlag = FALSE;\r | |
1520 | NameFlag = FALSE;\r | |
1521 | PathFlag = FALSE;\r | |
93e3992d | 1522 | \r |
1523 | if (This == NULL || Configuration == NULL || AltCfgResp == NULL) {\r | |
1524 | return EFI_INVALID_PARAMETER;\r | |
1525 | }\r | |
1526 | \r | |
1527 | StringPtr = Configuration;\r | |
1528 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1529 | return EFI_INVALID_PARAMETER;\r | |
1530 | }\r | |
1531 | \r | |
1532 | //\r | |
1533 | // Generate the sub string for later matching.\r | |
1534 | //\r | |
813acf3a | 1535 | GenerateSubStr (L"GUID=", sizeof (EFI_GUID), (VOID *) Guid, 1, &GuidStr);\r |
93e3992d | 1536 | GenerateSubStr (\r |
1537 | L"PATH=",\r | |
1538 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) DevicePath),\r | |
813acf3a | 1539 | (VOID *) DevicePath,\r |
1540 | 1,\r | |
93e3992d | 1541 | &PathStr\r |
1542 | );\r | |
1543 | if (AltCfgId != NULL) {\r | |
813acf3a | 1544 | GenerateSubStr (L"ALTCFG=", sizeof (UINT16), (VOID *) AltCfgId, 3, &AltIdStr); \r |
93e3992d | 1545 | }\r |
1546 | if (Name != NULL) {\r | |
813acf3a | 1547 | GenerateSubStr (L"NAME=", StrLen (Name) * sizeof (CHAR16), (VOID *) Name, 2, &NameStr); \r |
93e3992d | 1548 | } else {\r |
813acf3a | 1549 | GenerateSubStr (L"NAME=", 0, NULL, 2, &NameStr);\r |
93e3992d | 1550 | }\r |
1551 | \r | |
1552 | while (*StringPtr != 0) {\r | |
1553 | //\r | |
1554 | // Try to match the GUID\r | |
1555 | //\r | |
1556 | if (!GuidFlag) {\r | |
1557 | TmpPtr = StrStr (StringPtr, GuidStr);\r | |
1558 | if (TmpPtr == NULL) {\r | |
1559 | Status = EFI_NOT_FOUND;\r | |
1560 | goto Exit;\r | |
1561 | }\r | |
1562 | HdrStart = TmpPtr;\r | |
1563 | \r | |
1564 | //\r | |
1565 | // Jump to <NameHdr>\r | |
1566 | //\r | |
1567 | if (Guid != NULL) {\r | |
1568 | StringPtr = TmpPtr + StrLen (GuidStr);\r | |
1569 | } else {\r | |
1570 | StringPtr = StrStr (TmpPtr, L"NAME=");\r | |
1571 | if (StringPtr == NULL) {\r | |
1572 | Status = EFI_NOT_FOUND;\r | |
1573 | goto Exit;\r | |
1574 | }\r | |
1575 | }\r | |
1576 | GuidFlag = TRUE;\r | |
1577 | }\r | |
1578 | \r | |
1579 | //\r | |
1580 | // Try to match the NAME\r | |
1581 | //\r | |
1582 | if (GuidFlag && !NameFlag) {\r | |
1583 | if (StrnCmp (StringPtr, NameStr, StrLen (NameStr)) != 0) {\r | |
1584 | GuidFlag = FALSE;\r | |
1585 | } else {\r | |
1586 | //\r | |
1587 | // Jump to <PathHdr>\r | |
1588 | //\r | |
1589 | if (Name != NULL) {\r | |
1590 | StringPtr += StrLen (NameStr);\r | |
1591 | } else {\r | |
1592 | StringPtr = StrStr (StringPtr, L"PATH=");\r | |
1593 | if (StringPtr == NULL) {\r | |
1594 | Status = EFI_NOT_FOUND;\r | |
1595 | goto Exit;\r | |
1596 | }\r | |
1597 | }\r | |
1598 | NameFlag = TRUE;\r | |
1599 | }\r | |
1600 | }\r | |
1601 | \r | |
1602 | //\r | |
1603 | // Try to match the DevicePath\r | |
1604 | //\r | |
1605 | if (GuidFlag && NameFlag && !PathFlag) {\r | |
1606 | if (StrnCmp (StringPtr, PathStr, StrLen (PathStr)) != 0) {\r | |
1607 | GuidFlag = FALSE;\r | |
1608 | NameFlag = FALSE;\r | |
1609 | } else {\r | |
1610 | //\r | |
1611 | // Jump to '&' before <DescHdr> or <ConfigBody>\r | |
1612 | //\r | |
1613 | if (DevicePath != NULL) {\r | |
1614 | StringPtr += StrLen (PathStr);\r | |
1615 | } else {\r | |
1616 | StringPtr = StrStr (StringPtr, L"&");\r | |
1617 | if (StringPtr == NULL) {\r | |
1618 | Status = EFI_NOT_FOUND;\r | |
1619 | goto Exit;\r | |
1620 | }\r | |
1621 | }\r | |
1622 | PathFlag = TRUE;\r | |
1623 | HdrEnd = ++StringPtr;\r | |
1624 | }\r | |
1625 | }\r | |
1626 | \r | |
1627 | //\r | |
1628 | // Try to match the AltCfgId\r | |
1629 | //\r | |
1630 | if (GuidFlag && NameFlag && PathFlag) {\r | |
1631 | if (AltCfgId == NULL) {\r | |
1632 | //\r | |
1633 | // Return Current Setting when AltCfgId is NULL.\r | |
1634 | //\r | |
1635 | Status = OutputConfigBody (StringPtr, &Result);\r | |
1636 | goto Exit;\r | |
1637 | }\r | |
1638 | //\r | |
1639 | // Search the <ConfigAltResp> to get the <AltResp> with AltCfgId.\r | |
1640 | //\r | |
1641 | if (StrnCmp (StringPtr, AltIdStr, StrLen (AltIdStr)) != 0) {\r | |
1642 | GuidFlag = FALSE;\r | |
1643 | NameFlag = FALSE;\r | |
1644 | PathFlag = FALSE;\r | |
1645 | } else {\r | |
1646 | Status = OutputConfigBody (StringPtr, &Result);\r | |
1647 | goto Exit;\r | |
1648 | }\r | |
1649 | }\r | |
1650 | }\r | |
1651 | \r | |
1652 | Status = EFI_NOT_FOUND;\r | |
1653 | \r | |
1654 | Exit:\r | |
1655 | \r | |
1656 | if (!EFI_ERROR (Status)) {\r | |
1657 | //\r | |
1658 | // Copy the <ConfigHdr> and <ConfigBody>\r | |
1659 | //\r | |
1660 | Length = HdrEnd - HdrStart + StrLen (Result);\r | |
1661 | *AltCfgResp = AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1662 | if (*AltCfgResp == NULL) {\r | |
1663 | Status = EFI_OUT_OF_RESOURCES;\r | |
1664 | } else {\r | |
1665 | StrnCpy (*AltCfgResp, HdrStart, HdrEnd - HdrStart);\r | |
1666 | StrCat (*AltCfgResp, Result);\r | |
1667 | Status = EFI_SUCCESS;\r | |
1668 | }\r | |
1669 | }\r | |
1670 | \r | |
676df92c | 1671 | if (GuidStr != NULL) {\r |
1672 | FreePool (GuidStr);\r | |
1673 | }\r | |
1674 | if (NameStr != NULL) {\r | |
1675 | FreePool (NameStr);\r | |
1676 | }\r | |
1677 | if (PathStr != NULL) {\r | |
1678 | FreePool (PathStr);\r | |
1679 | }\r | |
1680 | if (AltIdStr != NULL) {\r | |
1681 | FreePool (AltIdStr);\r | |
1682 | }\r | |
1683 | if (Result != NULL) {\r | |
1684 | FreePool (Result);\r | |
1685 | }\r | |
93e3992d | 1686 | \r |
1687 | return Status;\r | |
1688 | \r | |
93e3992d | 1689 | }\r |
1690 | \r | |
36fe40c2 | 1691 | \r |