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93e3992d | 1 | /** @file\r |
3cb3f198 | 2 | Implementation of interfaces function for EFI_HII_CONFIG_ROUTING_PROTOCOL.\r |
93e3992d | 3 | \r |
36fe40c2 | 4 | Copyright (c) 2007 - 2008, Intel Corporation\r |
93e3992d | 5 | All rights reserved. This program and the accompanying materials\r |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
93e3992d | 13 | **/\r |
14 | \r | |
15 | \r | |
16 | #include "HiiDatabase.h"\r | |
17 | \r | |
93e3992d | 18 | /**\r |
19 | Calculate the number of Unicode characters of the incoming Configuration string,\r | |
20 | not including NULL terminator.\r | |
21 | \r | |
e90b081a | 22 | This is a internal function.\r |
23 | \r | |
93e3992d | 24 | @param String String in <MultiConfigRequest> or\r |
25 | <MultiConfigResp> format.\r | |
26 | \r | |
27 | @return The number of Unicode characters.\r | |
28 | \r | |
29 | **/\r | |
93e3992d | 30 | UINTN\r |
31 | CalculateConfigStringLen (\r | |
32 | IN EFI_STRING String\r | |
33 | )\r | |
34 | {\r | |
35 | UINTN Length;\r | |
36 | \r | |
37 | //\r | |
38 | // "GUID=" should be the first element of incoming string.\r | |
39 | //\r | |
40 | ASSERT (String != NULL);\r | |
41 | ASSERT (StrnCmp (String, L"GUID=", StrLen (L"GUID=")) == 0);\r | |
42 | \r | |
43 | Length = StrLen (L"GUID=");\r | |
44 | String += Length;\r | |
45 | \r | |
46 | //\r | |
47 | // The beginning of next <ConfigRequest>/<ConfigResp> should be "&GUID=".\r | |
48 | // Will meet '\0' if there is only one <ConfigRequest>/<ConfigResp>.\r | |
49 | //\r | |
50 | while (*String != 0 && StrnCmp (String, L"&GUID=", StrLen (L"&GUID=")) != 0) {\r | |
51 | Length++;\r | |
52 | String++;\r | |
53 | }\r | |
54 | \r | |
55 | return Length;\r | |
56 | }\r | |
57 | \r | |
58 | \r | |
59 | /**\r | |
60 | Convert the hex UNICODE %02x encoding of a UEFI device path to binary\r | |
61 | from <PathHdr> of <ConfigHdr>.\r | |
62 | \r | |
e90b081a | 63 | This is a internal function.\r |
64 | \r | |
93e3992d | 65 | @param String UEFI configuration string\r |
66 | @param DevicePath binary of a UEFI device path.\r | |
67 | \r | |
68 | @retval EFI_INVALID_PARAMETER Any incoming parameter is invalid.\r | |
69 | @retval EFI_OUT_OF_RESOURCES Lake of resources to store neccesary structures.\r | |
70 | @retval EFI_SUCCESS The device path is retrieved and translated to\r | |
71 | binary format.\r | |
72 | \r | |
73 | **/\r | |
93e3992d | 74 | EFI_STATUS\r |
75 | GetDevicePath (\r | |
76 | IN EFI_STRING String,\r | |
77 | OUT UINT8 **DevicePath\r | |
78 | )\r | |
79 | {\r | |
80 | UINTN Length;\r | |
81 | EFI_STRING PathHdr;\r | |
82 | EFI_STRING DevicePathString;\r | |
83 | \r | |
84 | if (String == NULL || DevicePath == NULL) {\r | |
85 | return EFI_INVALID_PARAMETER;\r | |
86 | }\r | |
87 | \r | |
88 | //\r | |
89 | // Find the 'PATH=' of <PathHdr> and skip it.\r | |
90 | //\r | |
91 | for (; (*String != 0 && StrnCmp (String, L"PATH=", StrLen (L"PATH=")) != 0); String++);\r | |
92 | if (*String == 0) {\r | |
93 | return EFI_INVALID_PARAMETER;\r | |
94 | }\r | |
95 | \r | |
96 | String += StrLen (L"PATH=");\r | |
97 | PathHdr = String;\r | |
98 | \r | |
99 | //\r | |
100 | // The content between 'PATH=' of <ConfigHdr> and '&' of next element\r | |
101 | // or '\0' (end of configuration string) is the UNICODE %02x bytes encoding\r | |
102 | // of UEFI device path.\r | |
103 | //\r | |
104 | for (Length = 0; *String != 0 && *String != L'&'; String++, Length++);\r | |
105 | DevicePathString = (EFI_STRING) AllocateZeroPool ((Length + 1) * sizeof (CHAR16));\r | |
106 | if (DevicePathString == NULL) {\r | |
107 | return EFI_OUT_OF_RESOURCES;\r | |
108 | }\r | |
109 | StrnCpy (DevicePathString, PathHdr, Length);\r | |
110 | *(DevicePathString + Length) = 0;\r | |
111 | \r | |
112 | //\r | |
113 | // The data in <PathHdr> is encoded as hex UNICODE %02x bytes in the same order\r | |
114 | // as the device path resides in RAM memory.\r | |
115 | // Translate the data into binary.\r | |
93e3992d | 116 | //\r |
117 | Length /= 2;\r | |
118 | *DevicePath = (UINT8 *) AllocateZeroPool (Length);\r | |
119 | if (*DevicePath == NULL) {\r | |
676df92c | 120 | FreePool (DevicePathString);\r |
93e3992d | 121 | return EFI_OUT_OF_RESOURCES;\r |
122 | }\r | |
123 | \r | |
5e580cf7 | 124 | HexStringToBufInReverseOrder (*DevicePath, &Length, DevicePathString);\r |
93e3992d | 125 | \r |
676df92c | 126 | FreePool (DevicePathString);\r |
93e3992d | 127 | \r |
128 | return EFI_SUCCESS;\r | |
129 | \r | |
130 | }\r | |
131 | \r | |
132 | \r | |
93e3992d | 133 | /**\r |
134 | Generate a sub string then output it.\r | |
135 | \r | |
e90b081a | 136 | This is a internal function.\r |
137 | \r | |
93e3992d | 138 | @param String A constant string which is the prefix of the to be\r |
139 | generated string, e.g. GUID=\r | |
140 | @param BufferLen The length of the Buffer in bytes.\r | |
813acf3a | 141 | @param Buffer Points to a buffer which will be converted to be the \r |
142 | content of the generated string.\r | |
143 | @param Flag If 1, the buffer contains data for the value of GUID or PATH stored in \r | |
144 | UINT8 *; if 2, the buffer contains unicode string for the value of NAME;\r | |
145 | if 3, the buffer contains other data.\r | |
93e3992d | 146 | @param SubStr Points to the output string. It's caller's\r |
147 | responsibility to free this buffer.\r | |
148 | \r | |
149 | \r | |
150 | **/\r | |
93e3992d | 151 | VOID\r |
152 | GenerateSubStr (\r | |
153 | IN CONST EFI_STRING String,\r | |
154 | IN UINTN BufferLen,\r | |
813acf3a | 155 | IN VOID *Buffer,\r |
156 | IN UINT8 Flag,\r | |
93e3992d | 157 | OUT EFI_STRING *SubStr\r |
158 | )\r | |
159 | {\r | |
160 | UINTN Length;\r | |
161 | EFI_STRING Str;\r | |
162 | EFI_STATUS Status;\r | |
813acf3a | 163 | EFI_STRING StringHeader;\r |
93e3992d | 164 | \r |
165 | ASSERT (String != NULL && SubStr != NULL);\r | |
166 | \r | |
167 | if (Buffer == NULL) {\r | |
168 | *SubStr = AllocateCopyPool (StrSize (String), String);\r | |
169 | ASSERT (*SubStr != NULL);\r | |
170 | return ;\r | |
171 | }\r | |
172 | \r | |
813acf3a | 173 | Length = StrLen (String) + BufferLen * 2 + 1 + 1;\r |
93e3992d | 174 | Str = AllocateZeroPool (Length * sizeof (CHAR16));\r |
175 | ASSERT (Str != NULL);\r | |
176 | \r | |
177 | StrCpy (Str, String);\r | |
178 | Length = (BufferLen * 2 + 1) * sizeof (CHAR16);\r | |
179 | \r | |
813acf3a | 180 | Status = EFI_SUCCESS;\r |
181 | StringHeader = Str + StrLen (String);\r | |
182 | \r | |
183 | switch (Flag) {\r | |
184 | case 1:\r | |
5e580cf7 | 185 | Status = BufInReverseOrderToHexString (StringHeader, (UINT8 *) Buffer, BufferLen);\r |
813acf3a | 186 | break;\r |
187 | case 2:\r | |
188 | Status = UnicodeToConfigString (StringHeader, &Length, (CHAR16 *) Buffer);\r | |
189 | break;\r | |
190 | case 3:\r | |
191 | Status = BufToHexString (StringHeader, &Length, (UINT8 *) Buffer, BufferLen);\r | |
192 | //\r | |
193 | // Convert the uppercase to lowercase since <HexAf> is defined in lowercase format.\r | |
194 | //\r | |
195 | ToLower (StringHeader);\r | |
196 | break;\r | |
197 | default:\r | |
198 | break;\r | |
199 | }\r | |
93e3992d | 200 | \r |
201 | ASSERT_EFI_ERROR (Status);\r | |
202 | StrCat (Str, L"&");\r | |
203 | \r | |
204 | *SubStr = Str;\r | |
205 | }\r | |
206 | \r | |
207 | \r | |
208 | /**\r | |
209 | Retrieve the <ConfigBody> from String then output it.\r | |
210 | \r | |
e90b081a | 211 | This is a internal function.\r |
212 | \r | |
93e3992d | 213 | @param String A sub string of a configuration string in\r |
214 | <MultiConfigAltResp> format.\r | |
215 | @param ConfigBody Points to the output string. It's caller's\r | |
216 | responsibility to free this buffer.\r | |
217 | \r | |
218 | @retval EFI_INVALID_PARAMETER There is no form package in current hii database.\r | |
219 | @retval EFI_OUT_OF_RESOURCES Not enough memory to finish this operation.\r | |
220 | @retval EFI_SUCCESS All existing storage is exported.\r | |
221 | \r | |
222 | **/\r | |
93e3992d | 223 | EFI_STATUS\r |
224 | OutputConfigBody (\r | |
225 | IN EFI_STRING String,\r | |
226 | OUT EFI_STRING *ConfigBody\r | |
227 | )\r | |
228 | {\r | |
229 | EFI_STRING TmpPtr;\r | |
230 | EFI_STRING Result;\r | |
231 | UINTN Length;\r | |
232 | \r | |
233 | if (String == NULL || ConfigBody == NULL) {\r | |
234 | return EFI_INVALID_PARAMETER;\r | |
235 | }\r | |
236 | \r | |
237 | TmpPtr = StrStr (String, L"GUID=");\r | |
238 | if (TmpPtr == NULL) {\r | |
239 | //\r | |
240 | // It is the last <ConfigResp> of the incoming configuration string.\r | |
241 | //\r | |
242 | Result = AllocateCopyPool (StrSize (String), String);\r | |
243 | if (Result == NULL) {\r | |
244 | return EFI_OUT_OF_RESOURCES;\r | |
245 | } else {\r | |
246 | *ConfigBody = Result;\r | |
247 | return EFI_SUCCESS;\r | |
248 | }\r | |
249 | }\r | |
250 | \r | |
251 | Length = TmpPtr - String;\r | |
252 | Result = AllocateCopyPool (Length * sizeof (CHAR16), String);\r | |
253 | if (Result == NULL) {\r | |
254 | return EFI_OUT_OF_RESOURCES;\r | |
255 | }\r | |
256 | \r | |
257 | *(Result + Length - 1) = 0;\r | |
258 | *ConfigBody = Result;\r | |
259 | return EFI_SUCCESS;\r | |
260 | \r | |
261 | }\r | |
262 | \r | |
93e3992d | 263 | /**\r |
264 | Append a string to a multi-string format.\r | |
265 | \r | |
e90b081a | 266 | This is a internal function.\r |
267 | \r | |
93e3992d | 268 | @param MultiString String in <MultiConfigRequest>,\r |
269 | <MultiConfigAltResp>, or <MultiConfigResp>. On\r | |
270 | input, the buffer length of this string is\r | |
271 | MAX_STRING_LENGTH. On output, the buffer length\r | |
272 | might be updated.\r | |
273 | @param AppendString NULL-terminated Unicode string.\r | |
274 | \r | |
275 | @retval EFI_INVALID_PARAMETER Any incoming parameter is invalid.\r | |
276 | @retval EFI_SUCCESS AppendString is append to the end of MultiString\r | |
277 | \r | |
278 | **/\r | |
93e3992d | 279 | EFI_STATUS\r |
280 | AppendToMultiString (\r | |
281 | IN OUT EFI_STRING *MultiString,\r | |
282 | IN EFI_STRING AppendString\r | |
283 | )\r | |
284 | {\r | |
285 | UINTN AppendStringSize;\r | |
286 | UINTN MultiStringSize;\r | |
287 | \r | |
288 | if (MultiString == NULL || *MultiString == NULL || AppendString == NULL) {\r | |
289 | return EFI_INVALID_PARAMETER;\r | |
290 | }\r | |
291 | \r | |
292 | AppendStringSize = StrSize (AppendString);\r | |
293 | MultiStringSize = StrSize (*MultiString);\r | |
294 | \r | |
295 | //\r | |
296 | // Enlarge the buffer each time when length exceeds MAX_STRING_LENGTH.\r | |
297 | //\r | |
298 | if (MultiStringSize + AppendStringSize > MAX_STRING_LENGTH ||\r | |
299 | MultiStringSize > MAX_STRING_LENGTH) {\r | |
300 | *MultiString = (EFI_STRING) ReallocatePool (\r | |
93e3992d | 301 | MultiStringSize,\r |
c4648495 | 302 | MultiStringSize + AppendStringSize,\r |
303 | (VOID *) (*MultiString)\r | |
93e3992d | 304 | );\r |
c59634ea | 305 | ASSERT (*MultiString != NULL);\r |
93e3992d | 306 | }\r |
93e3992d | 307 | //\r |
308 | // Append the incoming string\r | |
309 | //\r | |
310 | StrCat (*MultiString, AppendString);\r | |
311 | \r | |
312 | return EFI_SUCCESS;\r | |
313 | }\r | |
314 | \r | |
315 | \r | |
316 | /**\r | |
317 | Get the value of <Number> in <BlockConfig> format, i.e. the value of OFFSET\r | |
318 | or WIDTH or VALUE.\r | |
319 | <BlockConfig> ::= 'OFFSET='<Number>&'WIDTH='<Number>&'VALUE'=<Number>\r | |
320 | \r | |
e90b081a | 321 | This is a internal function.\r |
322 | \r | |
93e3992d | 323 | @param StringPtr String in <BlockConfig> format and points to the\r |
324 | first character of <Number>.\r | |
325 | @param Number The output value. Caller takes the responsibility\r | |
326 | to free memory.\r | |
327 | @param Len Length of the <Number>, in characters.\r | |
328 | \r | |
329 | @retval EFI_OUT_OF_RESOURCES Insufficient resources to store neccessary\r | |
330 | structures.\r | |
331 | @retval EFI_SUCCESS Value of <Number> is outputted in Number\r | |
332 | successfully.\r | |
333 | \r | |
334 | **/\r | |
93e3992d | 335 | EFI_STATUS\r |
336 | GetValueOfNumber (\r | |
337 | IN EFI_STRING StringPtr,\r | |
338 | OUT UINT8 **Number,\r | |
339 | OUT UINTN *Len\r | |
340 | )\r | |
341 | {\r | |
342 | EFI_STRING TmpPtr;\r | |
343 | UINTN Length;\r | |
344 | EFI_STRING Str;\r | |
345 | UINT8 *Buf;\r | |
346 | EFI_STATUS Status;\r | |
347 | \r | |
348 | ASSERT (StringPtr != NULL && Number != NULL && Len != NULL);\r | |
349 | ASSERT (*StringPtr != 0);\r | |
350 | \r | |
351 | Buf = NULL;\r | |
352 | \r | |
353 | TmpPtr = StringPtr;\r | |
354 | while (*StringPtr != 0 && *StringPtr != L'&') {\r | |
355 | StringPtr++;\r | |
356 | }\r | |
357 | *Len = StringPtr - TmpPtr;\r | |
358 | Length = *Len + 1;\r | |
359 | \r | |
360 | Str = (EFI_STRING) AllocateZeroPool (Length * sizeof (EFI_STRING));\r | |
361 | if (Str == NULL) {\r | |
362 | Status = EFI_OUT_OF_RESOURCES;\r | |
363 | goto Exit;\r | |
364 | }\r | |
365 | CopyMem (Str, TmpPtr, *Len * sizeof (CHAR16));\r | |
366 | *(Str + *Len) = 0;\r | |
367 | \r | |
368 | Length = (Length + 1) / 2;\r | |
369 | Buf = (UINT8 *) AllocateZeroPool (Length);\r | |
370 | if (Buf == NULL) {\r | |
371 | Status = EFI_OUT_OF_RESOURCES;\r | |
372 | goto Exit;\r | |
373 | }\r | |
374 | \r | |
36fe40c2 | 375 | Status = HexStringToBuf (Buf, &Length, Str, NULL);\r |
93e3992d | 376 | if (EFI_ERROR (Status)) {\r |
377 | goto Exit;\r | |
378 | }\r | |
379 | \r | |
380 | *Number = Buf;\r | |
381 | Status = EFI_SUCCESS;\r | |
382 | \r | |
383 | Exit:\r | |
676df92c | 384 | if (Str != NULL) {\r |
385 | FreePool (Str);\r | |
386 | }\r | |
93e3992d | 387 | return Status;\r |
388 | }\r | |
389 | \r | |
390 | \r | |
391 | /**\r | |
392 | This function allows a caller to extract the current configuration\r | |
393 | for one or more named elements from one or more drivers.\r | |
394 | \r | |
395 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
396 | instance.\r | |
397 | @param Request A null-terminated Unicode string in\r | |
398 | <MultiConfigRequest> format.\r | |
399 | @param Progress On return, points to a character in the Request\r | |
400 | string. Points to the string's null terminator if\r | |
401 | request was successful. Points to the most recent\r | |
402 | & before the first failing name / value pair (or\r | |
403 | the beginning of the string if the failure is in\r | |
404 | the first name / value pair) if the request was\r | |
405 | not successful.\r | |
406 | @param Results Null-terminated Unicode string in\r | |
407 | <MultiConfigAltResp> format which has all values\r | |
408 | filled in for the names in the Request string.\r | |
409 | String to be allocated by the called function.\r | |
410 | \r | |
411 | @retval EFI_SUCCESS The Results string is filled with the values\r | |
412 | corresponding to all requested names.\r | |
413 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
414 | results that must be stored awaiting possible\r | |
415 | future protocols.\r | |
416 | @retval EFI_NOT_FOUND Routing data doesn't match any known driver.\r | |
417 | Progress set to the "G" in "GUID" of the routing\r | |
418 | header that doesn't match. Note: There is no\r | |
419 | requirement that all routing data be validated\r | |
420 | before any configuration extraction.\r | |
421 | @retval EFI_INVALID_PARAMETER For example, passing in a NULL for the Request\r | |
422 | parameter would result in this type of error. The\r | |
423 | Progress parameter is set to NULL.\r | |
424 | @retval EFI_INVALID_PARAMETER Illegal syntax. Progress set to most recent &\r | |
425 | before the error or the beginning of the string.\r | |
426 | @retval EFI_INVALID_PARAMETER Unknown name. Progress points to the & before the\r | |
427 | name in question.\r | |
428 | \r | |
429 | **/\r | |
430 | EFI_STATUS\r | |
431 | EFIAPI\r | |
432 | HiiConfigRoutingExtractConfig (\r | |
433 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
434 | IN CONST EFI_STRING Request,\r | |
435 | OUT EFI_STRING *Progress,\r | |
436 | OUT EFI_STRING *Results\r | |
437 | )\r | |
438 | {\r | |
93e3992d | 439 | HII_DATABASE_PRIVATE_DATA *Private;\r |
440 | EFI_STRING StringPtr;\r | |
441 | EFI_STRING ConfigRequest;\r | |
442 | UINTN Length;\r | |
443 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
444 | EFI_STATUS Status;\r | |
445 | LIST_ENTRY *Link;\r | |
446 | HII_DATABASE_RECORD *Database;\r | |
08e6463a | 447 | UINT8 *DevicePathPkg;\r |
93e3992d | 448 | UINT8 *CurrentDevicePath;\r |
449 | EFI_HANDLE DriverHandle;\r | |
450 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
451 | EFI_STRING AccessProgress;\r | |
452 | EFI_STRING AccessResults;\r | |
8d00a0f1 | 453 | BOOLEAN FirstElement;\r |
93e3992d | 454 | \r |
e94358a3 | 455 | //\r |
456 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
457 | // as FALSE. But this renders the system to not 100% compliant with\r | |
458 | // UEFI 2.1. Use this with caution.\r | |
459 | //\r | |
460 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
461 | return EFI_UNSUPPORTED;\r | |
462 | }\r | |
463 | \r | |
93e3992d | 464 | if (This == NULL || Progress == NULL || Results == NULL) {\r |
465 | return EFI_INVALID_PARAMETER;\r | |
466 | }\r | |
467 | \r | |
468 | if (Request == NULL) {\r | |
469 | *Progress = NULL;\r | |
470 | return EFI_INVALID_PARAMETER;\r | |
471 | }\r | |
472 | \r | |
473 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
474 | StringPtr = Request;\r | |
475 | *Progress = StringPtr;\r | |
476 | \r | |
477 | //\r | |
478 | // The first element of <MultiConfigRequest> should be\r | |
479 | // <GuidHdr>, which is in 'GUID='<Guid> syntax.\r | |
480 | //\r | |
481 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
482 | return EFI_INVALID_PARAMETER;\r | |
483 | }\r | |
484 | \r | |
8d00a0f1 | 485 | FirstElement = TRUE;\r |
486 | \r | |
93e3992d | 487 | //\r |
488 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
489 | // Results if this fix length is insufficient.\r | |
490 | //\r | |
491 | *Results = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
492 | if (*Results == NULL) {\r | |
493 | return EFI_OUT_OF_RESOURCES;\r | |
494 | }\r | |
495 | \r | |
496 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) == 0) {\r | |
497 | //\r | |
498 | // If parsing error, set Progress to the beginning of the <MultiConfigRequest>\r | |
499 | // or most recent & before the error.\r | |
500 | //\r | |
501 | if (StringPtr == Request) {\r | |
502 | *Progress = StringPtr;\r | |
503 | } else {\r | |
504 | *Progress = StringPtr - 1;\r | |
505 | }\r | |
506 | \r | |
507 | //\r | |
508 | // Process each <ConfigRequest> of <MultiConfigRequest>\r | |
509 | //\r | |
510 | Length = CalculateConfigStringLen (StringPtr);\r | |
511 | ConfigRequest = AllocateCopyPool ((Length + 1) * sizeof (CHAR16), StringPtr);\r | |
512 | if (ConfigRequest == NULL) {\r | |
513 | return EFI_OUT_OF_RESOURCES;\r | |
514 | }\r | |
515 | *(ConfigRequest + Length) = 0;\r | |
516 | \r | |
517 | //\r | |
518 | // Get the UEFI device path\r | |
519 | //\r | |
520 | Status = GetDevicePath (ConfigRequest, (UINT8 **) &DevicePath);\r | |
521 | if (EFI_ERROR (Status)) {\r | |
676df92c | 522 | FreePool (ConfigRequest);\r |
93e3992d | 523 | return Status;\r |
524 | }\r | |
525 | \r | |
526 | //\r | |
527 | // Find driver which matches the routing data.\r | |
528 | //\r | |
529 | DriverHandle = NULL;\r | |
530 | for (Link = Private->DatabaseList.ForwardLink;\r | |
531 | Link != &Private->DatabaseList;\r | |
532 | Link = Link->ForwardLink\r | |
533 | ) {\r | |
534 | Database = CR (Link, HII_DATABASE_RECORD, DatabaseEntry, HII_DATABASE_RECORD_SIGNATURE);\r | |
08e6463a | 535 | \r |
536 | if ((DevicePathPkg = Database->PackageList->DevicePathPkg) != NULL) {\r | |
537 | CurrentDevicePath = DevicePathPkg + sizeof (EFI_HII_PACKAGE_HEADER);\r | |
93e3992d | 538 | if (CompareMem (\r |
539 | DevicePath,\r | |
540 | CurrentDevicePath,\r | |
541 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) CurrentDevicePath)\r | |
542 | ) == 0) {\r | |
543 | DriverHandle = Database->DriverHandle;\r | |
544 | break;\r | |
545 | }\r | |
546 | }\r | |
547 | }\r | |
548 | \r | |
676df92c | 549 | FreePool (DevicePath);\r |
93e3992d | 550 | \r |
551 | if (DriverHandle == NULL) {\r | |
552 | //\r | |
553 | // Routing data does not match any known driver.\r | |
554 | // Set Progress to the 'G' in "GUID" of the routing header.\r | |
555 | //\r | |
556 | *Progress = StringPtr;\r | |
676df92c | 557 | FreePool (ConfigRequest);\r |
93e3992d | 558 | return EFI_NOT_FOUND;\r |
559 | }\r | |
560 | \r | |
561 | //\r | |
562 | // Call corresponding ConfigAccess protocol to extract settings\r | |
563 | //\r | |
564 | Status = gBS->HandleProtocol (\r | |
565 | DriverHandle,\r | |
566 | &gEfiHiiConfigAccessProtocolGuid,\r | |
567 | (VOID **) &ConfigAccess\r | |
568 | );\r | |
569 | ASSERT_EFI_ERROR (Status);\r | |
570 | \r | |
571 | Status = ConfigAccess->ExtractConfig (\r | |
572 | ConfigAccess,\r | |
573 | ConfigRequest,\r | |
574 | &AccessProgress,\r | |
575 | &AccessResults\r | |
576 | );\r | |
577 | if (EFI_ERROR (Status)) {\r | |
578 | //\r | |
579 | // AccessProgress indicates the parsing progress on <ConfigRequest>.\r | |
580 | // Map it to the progress on <MultiConfigRequest> then return it.\r | |
581 | //\r | |
8d00a0f1 | 582 | *Progress = StrStr (StringPtr, AccessProgress);\r |
676df92c | 583 | FreePool (ConfigRequest);\r |
93e3992d | 584 | return Status;\r |
585 | }\r | |
586 | \r | |
587 | //\r | |
8d00a0f1 | 588 | // Attach this <ConfigAltResp> to a <MultiConfigAltResp>. There is a '&'\r |
589 | // which seperates the first <ConfigAltResp> and the following ones.\r | |
93e3992d | 590 | //\r |
591 | ASSERT (*AccessProgress == 0);\r | |
8d00a0f1 | 592 | \r |
593 | if (!FirstElement) {\r | |
594 | Status = AppendToMultiString (Results, L"&");\r | |
595 | ASSERT_EFI_ERROR (Status);\r | |
596 | }\r | |
597 | \r | |
93e3992d | 598 | Status = AppendToMultiString (Results, AccessResults);\r |
599 | ASSERT_EFI_ERROR (Status);\r | |
8d00a0f1 | 600 | \r |
601 | FirstElement = FALSE;\r | |
602 | \r | |
676df92c | 603 | FreePool (AccessResults);\r |
93e3992d | 604 | AccessResults = NULL;\r |
676df92c | 605 | FreePool (ConfigRequest);\r |
93e3992d | 606 | ConfigRequest = NULL;\r |
607 | \r | |
608 | //\r | |
609 | // Go to next <ConfigRequest> (skip '&').\r | |
610 | //\r | |
611 | StringPtr += Length;\r | |
612 | if (*StringPtr == 0) {\r | |
613 | *Progress = StringPtr;\r | |
614 | break;\r | |
615 | }\r | |
616 | \r | |
617 | StringPtr++;\r | |
618 | \r | |
619 | }\r | |
620 | \r | |
621 | return EFI_SUCCESS;\r | |
93e3992d | 622 | \r |
623 | }\r | |
624 | \r | |
625 | \r | |
626 | /**\r | |
627 | This function allows the caller to request the current configuration for the\r | |
628 | entirety of the current HII database and returns the data in a\r | |
629 | null-terminated Unicode string.\r | |
630 | \r | |
631 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
632 | instance.\r | |
633 | @param Results Null-terminated Unicode string in\r | |
634 | <MultiConfigAltResp> format which has all values\r | |
635 | filled in for the names in the Request string.\r | |
636 | String to be allocated by the called function.\r | |
637 | De-allocation is up to the caller.\r | |
638 | \r | |
639 | @retval EFI_SUCCESS The Results string is filled with the values\r | |
640 | corresponding to all requested names.\r | |
641 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
642 | results that must be stored awaiting possible\r | |
643 | future protocols.\r | |
644 | @retval EFI_INVALID_PARAMETER For example, passing in a NULL for the Results\r | |
645 | parameter would result in this type of error.\r | |
646 | \r | |
647 | **/\r | |
648 | EFI_STATUS\r | |
649 | EFIAPI\r | |
650 | HiiConfigRoutingExportConfig (\r | |
651 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
652 | OUT EFI_STRING *Results\r | |
653 | )\r | |
654 | {\r | |
93e3992d | 655 | EFI_STATUS Status;\r |
93e3992d | 656 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r |
8d00a0f1 | 657 | EFI_STRING AccessResults; \r |
658 | UINTN Index;\r | |
659 | EFI_HANDLE *ConfigAccessHandles;\r | |
660 | UINTN NumberConfigAccessHandles;\r | |
661 | BOOLEAN FirstElement;\r | |
93e3992d | 662 | \r |
e94358a3 | 663 | //\r |
664 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
665 | // as FALSE. But this renders the system to not 100% compliant with\r | |
666 | // UEFI 2.1. Use this with caution.\r | |
667 | //\r | |
668 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
669 | return EFI_UNSUPPORTED;\r | |
670 | }\r | |
671 | \r | |
93e3992d | 672 | if (This == NULL || Results == NULL) {\r |
673 | return EFI_INVALID_PARAMETER;\r | |
674 | }\r | |
675 | \r | |
93e3992d | 676 | //\r |
677 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
678 | // Results if this fix length is insufficient.\r | |
679 | //\r | |
680 | *Results = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
681 | if (*Results == NULL) {\r | |
682 | return EFI_OUT_OF_RESOURCES;\r | |
683 | }\r | |
684 | \r | |
8d00a0f1 | 685 | NumberConfigAccessHandles = 0;\r |
686 | Status = gBS->LocateHandleBuffer (\r | |
687 | ByProtocol,\r | |
688 | &gEfiHiiConfigAccessProtocolGuid,\r | |
689 | NULL,\r | |
690 | &NumberConfigAccessHandles,\r | |
691 | &ConfigAccessHandles\r | |
692 | );\r | |
693 | if (EFI_ERROR (Status)) {\r | |
694 | return Status;\r | |
695 | }\r | |
93e3992d | 696 | \r |
8d00a0f1 | 697 | FirstElement = TRUE;\r |
93e3992d | 698 | \r |
8d00a0f1 | 699 | for (Index = 0; Index < NumberConfigAccessHandles; Index++) {\r |
93e3992d | 700 | Status = gBS->HandleProtocol (\r |
8d00a0f1 | 701 | ConfigAccessHandles[Index],\r |
93e3992d | 702 | &gEfiHiiConfigAccessProtocolGuid,\r |
8d00a0f1 | 703 | (VOID **) &ConfigAccess\r |
93e3992d | 704 | );\r |
8d00a0f1 | 705 | if (EFI_ERROR (Status)) {\r |
706 | continue;\r | |
707 | }\r | |
93e3992d | 708 | \r |
709 | Status = ConfigAccess->ExtractConfig (\r | |
710 | ConfigAccess,\r | |
8d00a0f1 | 711 | NULL,\r |
712 | NULL,\r | |
93e3992d | 713 | &AccessResults\r |
714 | );\r | |
8d00a0f1 | 715 | if (!EFI_ERROR (Status)) {\r |
716 | //\r | |
717 | // Attach this <ConfigAltResp> to a <MultiConfigAltResp>. There is a '&'\r | |
718 | // which seperates the first <ConfigAltResp> and the following ones. \r | |
719 | //\r | |
720 | if (!FirstElement) {\r | |
721 | Status = AppendToMultiString (Results, L"&");\r | |
722 | ASSERT_EFI_ERROR (Status);\r | |
676df92c | 723 | }\r |
8d00a0f1 | 724 | \r |
725 | Status = AppendToMultiString (Results, AccessResults);\r | |
726 | ASSERT_EFI_ERROR (Status);\r | |
93e3992d | 727 | \r |
8d00a0f1 | 728 | FirstElement = FALSE;\r |
729 | \r | |
730 | FreePool (AccessResults);\r | |
731 | AccessResults = NULL;\r | |
732 | }\r | |
93e3992d | 733 | }\r |
f4113e1f | 734 | FreePool (ConfigAccessHandles);\r |
93e3992d | 735 | \r |
8d00a0f1 | 736 | return EFI_SUCCESS; \r |
93e3992d | 737 | }\r |
738 | \r | |
739 | \r | |
740 | /**\r | |
741 | This function processes the results of processing forms and routes it to the\r | |
742 | appropriate handlers or storage.\r | |
743 | \r | |
744 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
745 | instance.\r | |
746 | @param Configuration A null-terminated Unicode string in\r | |
747 | <MulltiConfigResp> format.\r | |
748 | @param Progress A pointer to a string filled in with the offset of\r | |
749 | the most recent & before the first failing name /\r | |
750 | value pair (or the beginning of the string if the\r | |
751 | failure is in the first name / value pair) or the\r | |
752 | terminating NULL if all was successful.\r | |
753 | \r | |
754 | @retval EFI_SUCCESS The results have been distributed or are awaiting\r | |
755 | distribution.\r | |
756 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
757 | results that must be stored awaiting possible\r | |
758 | future protocols.\r | |
759 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the Configuration parameter\r | |
760 | would result in this type of error.\r | |
761 | @retval EFI_NOT_FOUND Target for the specified routing data was not\r | |
762 | found.\r | |
763 | \r | |
764 | **/\r | |
765 | EFI_STATUS\r | |
766 | EFIAPI\r | |
813acf3a | 767 | HiiConfigRoutingRouteConfig (\r |
93e3992d | 768 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r |
769 | IN CONST EFI_STRING Configuration,\r | |
770 | OUT EFI_STRING *Progress\r | |
771 | )\r | |
772 | {\r | |
93e3992d | 773 | HII_DATABASE_PRIVATE_DATA *Private;\r |
774 | EFI_STRING StringPtr;\r | |
775 | EFI_STRING ConfigResp;\r | |
776 | UINTN Length;\r | |
777 | EFI_STATUS Status;\r | |
778 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
779 | LIST_ENTRY *Link;\r | |
780 | HII_DATABASE_RECORD *Database;\r | |
08e6463a | 781 | UINT8 *DevicePathPkg;\r |
93e3992d | 782 | UINT8 *CurrentDevicePath;\r |
783 | EFI_HANDLE DriverHandle;\r | |
784 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
785 | EFI_STRING AccessProgress;\r | |
93e3992d | 786 | \r |
e94358a3 | 787 | //\r |
788 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
789 | // as FALSE. But this renders the system to not 100% compliant with\r | |
790 | // UEFI 2.1. Use this with caution.\r | |
791 | //\r | |
792 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
793 | return EFI_UNSUPPORTED;\r | |
794 | }\r | |
795 | \r | |
93e3992d | 796 | if (This == NULL || Progress == NULL) {\r |
797 | return EFI_INVALID_PARAMETER;\r | |
798 | }\r | |
799 | \r | |
800 | if (Configuration == NULL) {\r | |
801 | *Progress = NULL;\r | |
802 | return EFI_INVALID_PARAMETER;\r | |
803 | }\r | |
804 | \r | |
805 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
806 | StringPtr = Configuration;\r | |
807 | *Progress = StringPtr;\r | |
808 | \r | |
809 | //\r | |
810 | // The first element of <MultiConfigResp> should be\r | |
811 | // <GuidHdr>, which is in 'GUID='<Guid> syntax.\r | |
812 | //\r | |
813 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
814 | return EFI_INVALID_PARAMETER;\r | |
815 | }\r | |
816 | \r | |
817 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) == 0) {\r | |
818 | //\r | |
819 | // If parsing error, set Progress to the beginning of the <MultiConfigResp>\r | |
820 | // or most recent & before the error.\r | |
821 | //\r | |
822 | if (StringPtr == Configuration) {\r | |
823 | *Progress = StringPtr;\r | |
824 | } else {\r | |
825 | *Progress = StringPtr - 1;\r | |
826 | }\r | |
827 | \r | |
828 | //\r | |
829 | // Process each <ConfigResp> of <MultiConfigResp>\r | |
830 | //\r | |
831 | Length = CalculateConfigStringLen (StringPtr);\r | |
832 | ConfigResp = AllocateCopyPool ((Length + 1) * sizeof (CHAR16), StringPtr);\r | |
833 | if (ConfigResp == NULL) {\r | |
834 | return EFI_OUT_OF_RESOURCES;\r | |
835 | }\r | |
836 | //\r | |
837 | // Append '\0' to the end of ConfigRequest\r | |
838 | //\r | |
839 | *(ConfigResp + Length) = 0;\r | |
840 | \r | |
841 | //\r | |
842 | // Get the UEFI device path\r | |
843 | //\r | |
844 | Status = GetDevicePath (ConfigResp, (UINT8 **) &DevicePath);\r | |
845 | if (EFI_ERROR (Status)) {\r | |
676df92c | 846 | FreePool (ConfigResp);\r |
93e3992d | 847 | return Status;\r |
848 | }\r | |
849 | \r | |
850 | //\r | |
851 | // Find driver which matches the routing data.\r | |
852 | //\r | |
853 | DriverHandle = NULL;\r | |
854 | for (Link = Private->DatabaseList.ForwardLink;\r | |
855 | Link != &Private->DatabaseList;\r | |
856 | Link = Link->ForwardLink\r | |
857 | ) {\r | |
858 | Database = CR (Link, HII_DATABASE_RECORD, DatabaseEntry, HII_DATABASE_RECORD_SIGNATURE);\r | |
08e6463a | 859 | \r |
860 | if ((DevicePathPkg = Database->PackageList->DevicePathPkg) != NULL) {\r | |
861 | CurrentDevicePath = DevicePathPkg + sizeof (EFI_HII_PACKAGE_HEADER);\r | |
93e3992d | 862 | if (CompareMem (\r |
863 | DevicePath,\r | |
864 | CurrentDevicePath,\r | |
865 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) CurrentDevicePath)\r | |
866 | ) == 0) {\r | |
867 | DriverHandle = Database->DriverHandle;\r | |
868 | break;\r | |
869 | }\r | |
870 | }\r | |
871 | }\r | |
872 | \r | |
676df92c | 873 | FreePool (DevicePath);\r |
93e3992d | 874 | \r |
875 | if (DriverHandle == NULL) {\r | |
876 | //\r | |
877 | // Routing data does not match any known driver.\r | |
878 | // Set Progress to the 'G' in "GUID" of the routing header.\r | |
879 | //\r | |
880 | *Progress = StringPtr;\r | |
676df92c | 881 | FreePool (ConfigResp);\r |
93e3992d | 882 | return EFI_NOT_FOUND;\r |
883 | }\r | |
884 | \r | |
885 | //\r | |
886 | // Call corresponding ConfigAccess protocol to route settings\r | |
887 | //\r | |
888 | Status = gBS->HandleProtocol (\r | |
889 | DriverHandle,\r | |
890 | &gEfiHiiConfigAccessProtocolGuid,\r | |
891 | (VOID **) &ConfigAccess\r | |
892 | );\r | |
893 | ASSERT_EFI_ERROR (Status);\r | |
894 | \r | |
895 | Status = ConfigAccess->RouteConfig (\r | |
896 | ConfigAccess,\r | |
897 | ConfigResp,\r | |
898 | &AccessProgress\r | |
899 | );\r | |
900 | \r | |
901 | if (EFI_ERROR (Status)) {\r | |
902 | //\r | |
903 | // AccessProgress indicates the parsing progress on <ConfigResp>.\r | |
904 | // Map it to the progress on <MultiConfigResp> then return it.\r | |
905 | //\r | |
8d00a0f1 | 906 | *Progress = StrStr (StringPtr, AccessProgress);\r |
93e3992d | 907 | \r |
676df92c | 908 | FreePool (ConfigResp);\r |
93e3992d | 909 | return Status;\r |
910 | }\r | |
911 | \r | |
676df92c | 912 | FreePool (ConfigResp);\r |
93e3992d | 913 | ConfigResp = NULL;\r |
914 | \r | |
915 | //\r | |
916 | // Go to next <ConfigResp> (skip '&').\r | |
917 | //\r | |
918 | StringPtr += Length;\r | |
919 | if (*StringPtr == 0) {\r | |
920 | *Progress = StringPtr;\r | |
921 | break;\r | |
922 | }\r | |
923 | \r | |
924 | StringPtr++;\r | |
925 | \r | |
926 | }\r | |
927 | \r | |
928 | return EFI_SUCCESS;\r | |
93e3992d | 929 | }\r |
930 | \r | |
931 | \r | |
932 | /**\r | |
933 | This helper function is to be called by drivers to map configuration data\r | |
934 | stored in byte array ("block") formats such as UEFI Variables into current\r | |
935 | configuration strings.\r | |
936 | \r | |
937 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
938 | instance.\r | |
939 | @param ConfigRequest A null-terminated Unicode string in\r | |
940 | <ConfigRequest> format.\r | |
941 | @param Block Array of bytes defining the block's configuration.\r | |
942 | @param BlockSize Length in bytes of Block.\r | |
943 | @param Config Filled-in configuration string. String allocated\r | |
944 | by the function. Returned only if call is\r | |
945 | successful.\r | |
946 | @param Progress A pointer to a string filled in with the offset of\r | |
947 | the most recent & before the first failing\r | |
948 | name/value pair (or the beginning of the string if\r | |
949 | the failure is in the first name / value pair) or\r | |
950 | the terminating NULL if all was successful.\r | |
951 | \r | |
952 | @retval EFI_SUCCESS The request succeeded. Progress points to the null\r | |
953 | terminator at the end of the ConfigRequest\r | |
954 | string.\r | |
955 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate Config. Progress\r | |
956 | points to the first character of ConfigRequest.\r | |
957 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the ConfigRequest or\r | |
958 | Block parameter would result in this type of\r | |
959 | error. Progress points to the first character of\r | |
960 | ConfigRequest.\r | |
961 | @retval EFI_DEVICE_ERROR Block not large enough. Progress undefined.\r | |
962 | @retval EFI_INVALID_PARAMETER Encountered non <BlockName> formatted string.\r | |
963 | Block is left updated and Progress points at\r | |
964 | the "&" preceding the first non-<BlockName>.\r | |
965 | \r | |
966 | **/\r | |
967 | EFI_STATUS\r | |
968 | EFIAPI\r | |
969 | HiiBlockToConfig (\r | |
970 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
971 | IN CONST EFI_STRING ConfigRequest,\r | |
972 | IN CONST UINT8 *Block,\r | |
973 | IN CONST UINTN BlockSize,\r | |
974 | OUT EFI_STRING *Config,\r | |
975 | OUT EFI_STRING *Progress\r | |
976 | )\r | |
977 | {\r | |
978 | HII_DATABASE_PRIVATE_DATA *Private;\r | |
979 | EFI_STRING StringPtr;\r | |
980 | UINTN Length;\r | |
981 | EFI_STATUS Status;\r | |
982 | EFI_STRING TmpPtr;\r | |
983 | UINT8 *TmpBuffer;\r | |
984 | UINTN Offset;\r | |
985 | UINTN Width;\r | |
986 | UINT8 *Value;\r | |
987 | EFI_STRING ValueStr;\r | |
988 | EFI_STRING ConfigElement;\r | |
989 | \r | |
990 | if (This == NULL || Progress == NULL || Config == NULL) {\r | |
991 | return EFI_INVALID_PARAMETER;\r | |
992 | }\r | |
993 | \r | |
994 | if (Block == NULL || ConfigRequest == NULL) {\r | |
995 | *Progress = ConfigRequest;\r | |
996 | return EFI_INVALID_PARAMETER;\r | |
997 | }\r | |
998 | \r | |
999 | \r | |
1000 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
1001 | ASSERT (Private != NULL);\r | |
1002 | \r | |
1003 | StringPtr = ConfigRequest;\r | |
1004 | ValueStr = NULL;\r | |
1005 | Value = NULL;\r | |
1006 | ConfigElement = NULL;\r | |
1007 | \r | |
1008 | //\r | |
1009 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
1010 | // Results if this fix length is insufficient.\r | |
1011 | //\r | |
1012 | *Config = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
1013 | if (*Config == NULL) {\r | |
1014 | return EFI_OUT_OF_RESOURCES;\r | |
1015 | }\r | |
1016 | \r | |
1017 | //\r | |
1018 | // Jump <ConfigHdr>\r | |
1019 | //\r | |
1020 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1021 | *Progress = StringPtr;\r | |
1022 | Status = EFI_INVALID_PARAMETER;\r | |
1023 | goto Exit;\r | |
1024 | }\r | |
1025 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"PATH=", StrLen (L"PATH=")) != 0) {\r | |
1026 | StringPtr++;\r | |
1027 | }\r | |
1028 | if (*StringPtr == 0) {\r | |
1029 | *Progress = StringPtr;\r | |
1030 | Status = EFI_INVALID_PARAMETER;\r | |
1031 | goto Exit;\r | |
1032 | }\r | |
08e6463a | 1033 | \r |
1034 | while (*StringPtr != L'&' && *StringPtr != 0) {\r | |
1035 | StringPtr++;\r | |
1036 | }\r | |
1037 | if (*StringPtr == 0) {\r | |
1038 | *Progress = StringPtr;\r | |
1039 | Status = EFI_INVALID_PARAMETER;\r | |
1040 | goto Exit;\r | |
1041 | }\r | |
1042 | //\r | |
1043 | // Skip '&'\r | |
1044 | //\r | |
1045 | StringPtr++;\r | |
93e3992d | 1046 | \r |
1047 | //\r | |
1048 | // Copy <ConfigHdr> and an additional '&' to <ConfigResp>\r | |
1049 | //\r | |
1050 | Length = StringPtr - ConfigRequest;\r | |
1051 | CopyMem (*Config, ConfigRequest, Length * sizeof (CHAR16));\r | |
1052 | \r | |
1053 | //\r | |
1054 | // Parse each <RequestElement> if exists\r | |
1055 | // Only <BlockName> format is supported by this help function.\r | |
1056 | // <BlockName> ::= 'OFFSET='<Number>&'WIDTH='<Number>\r | |
1057 | //\r | |
1058 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"OFFSET=", StrLen (L"OFFSET=")) == 0) {\r | |
1059 | //\r | |
1060 | // Back up the header of one <BlockName>\r | |
1061 | //\r | |
1062 | TmpPtr = StringPtr;\r | |
1063 | \r | |
1064 | StringPtr += StrLen (L"OFFSET=");\r | |
1065 | //\r | |
1066 | // Get Offset\r | |
1067 | //\r | |
1068 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1069 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1070 | *Progress = ConfigRequest;\r | |
1071 | goto Exit;\r | |
1072 | }\r | |
1073 | Offset = 0;\r | |
1074 | CopyMem (\r | |
1075 | &Offset,\r | |
1076 | TmpBuffer,\r | |
1077 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1078 | );\r | |
676df92c | 1079 | FreePool (TmpBuffer);\r |
93e3992d | 1080 | \r |
1081 | StringPtr += Length;\r | |
1082 | if (StrnCmp (StringPtr, L"&WIDTH=", StrLen (L"&WIDTH=")) != 0) {\r | |
1083 | *Progress = StringPtr - Length - StrLen (L"OFFSET=") - 1;\r | |
1084 | Status = EFI_INVALID_PARAMETER;\r | |
1085 | goto Exit;\r | |
1086 | }\r | |
1087 | StringPtr += StrLen (L"&WIDTH=");\r | |
1088 | \r | |
1089 | //\r | |
1090 | // Get Width\r | |
1091 | //\r | |
1092 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1093 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1094 | *Progress = ConfigRequest;\r | |
1095 | goto Exit;\r | |
1096 | }\r | |
1097 | Width = 0;\r | |
1098 | CopyMem (\r | |
1099 | &Width,\r | |
1100 | TmpBuffer,\r | |
1101 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1102 | );\r | |
676df92c | 1103 | FreePool (TmpBuffer);\r |
93e3992d | 1104 | \r |
1105 | StringPtr += Length;\r | |
1106 | if (*StringPtr != 0 && *StringPtr != L'&') {\r | |
1107 | *Progress = StringPtr - Length - StrLen (L"&WIDTH=");\r | |
1108 | Status = EFI_INVALID_PARAMETER;\r | |
1109 | goto Exit;\r | |
1110 | }\r | |
1111 | \r | |
1112 | //\r | |
1113 | // Calculate Value and convert it to hex string.\r | |
1114 | //\r | |
1115 | if (Offset + Width > BlockSize) {\r | |
1116 | *Progress = StringPtr;\r | |
1117 | Status = EFI_DEVICE_ERROR;\r | |
1118 | goto Exit;\r | |
1119 | }\r | |
1120 | \r | |
1121 | Value = (UINT8 *) AllocateZeroPool (Width);\r | |
1122 | if (Value == NULL) {\r | |
1123 | *Progress = ConfigRequest;\r | |
1124 | Status = EFI_OUT_OF_RESOURCES;\r | |
1125 | goto Exit;\r | |
1126 | }\r | |
1127 | \r | |
1128 | CopyMem (Value, (UINT8 *) Block + Offset, Width);\r | |
1129 | \r | |
1130 | Length = Width * 2 + 1;\r | |
1131 | ValueStr = (EFI_STRING) AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1132 | if (ValueStr == NULL) {\r | |
1133 | *Progress = ConfigRequest;\r | |
1134 | Status = EFI_OUT_OF_RESOURCES;\r | |
1135 | goto Exit;\r | |
1136 | }\r | |
1137 | \r | |
36fe40c2 | 1138 | Status = BufToHexString (ValueStr, &Length, Value, Width);\r |
93e3992d | 1139 | ASSERT_EFI_ERROR (Status);\r |
813acf3a | 1140 | ToLower (ValueStr);\r |
1141 | \r | |
676df92c | 1142 | FreePool (Value);\r |
93e3992d | 1143 | Value = NULL;\r |
1144 | \r | |
1145 | //\r | |
1146 | // Build a ConfigElement\r | |
1147 | //\r | |
1148 | Length += StringPtr - TmpPtr + 1 + StrLen (L"VALUE=");\r | |
1149 | ConfigElement = (EFI_STRING) AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1150 | if (ConfigElement == NULL) {\r | |
1151 | Status = EFI_OUT_OF_RESOURCES;\r | |
1152 | goto Exit;\r | |
1153 | }\r | |
1154 | CopyMem (ConfigElement, TmpPtr, (StringPtr - TmpPtr + 1) * sizeof (CHAR16));\r | |
1155 | if (*StringPtr == 0) {\r | |
1156 | *(ConfigElement + (StringPtr - TmpPtr)) = L'&';\r | |
1157 | }\r | |
1158 | *(ConfigElement + (StringPtr - TmpPtr) + 1) = 0;\r | |
1159 | StrCat (ConfigElement, L"VALUE=");\r | |
1160 | StrCat (ConfigElement, ValueStr);\r | |
1161 | \r | |
1162 | AppendToMultiString (Config, ConfigElement);\r | |
1163 | \r | |
676df92c | 1164 | FreePool (ConfigElement);\r |
1165 | FreePool (ValueStr);\r | |
93e3992d | 1166 | ConfigElement = NULL;\r |
1167 | ValueStr = NULL;\r | |
1168 | \r | |
1169 | //\r | |
1170 | // If '\0', parsing is finished. Otherwise skip '&' to continue\r | |
1171 | //\r | |
1172 | if (*StringPtr == 0) {\r | |
1173 | break;\r | |
1174 | }\r | |
1175 | AppendToMultiString (Config, L"&");\r | |
1176 | StringPtr++;\r | |
1177 | \r | |
1178 | }\r | |
1179 | \r | |
1180 | if (*StringPtr != 0) {\r | |
1181 | *Progress = StringPtr - 1;\r | |
1182 | Status = EFI_INVALID_PARAMETER;\r | |
1183 | goto Exit;\r | |
1184 | }\r | |
1185 | \r | |
1186 | *Progress = StringPtr;\r | |
1187 | return EFI_SUCCESS;\r | |
1188 | \r | |
1189 | Exit:\r | |
676df92c | 1190 | FreePool (*Config);\r |
1191 | if (ValueStr != NULL) {\r | |
1192 | FreePool (ValueStr);\r | |
1193 | }\r | |
1194 | if (Value != NULL) {\r | |
1195 | FreePool (Value);\r | |
1196 | }\r | |
69367b5b | 1197 | if (ConfigElement != NULL) {\r |
676df92c | 1198 | FreePool (ConfigElement);\r |
1199 | }\r | |
93e3992d | 1200 | \r |
1201 | return Status;\r | |
1202 | \r | |
1203 | }\r | |
1204 | \r | |
1205 | \r | |
1206 | /**\r | |
1207 | This helper function is to be called by drivers to map configuration strings\r | |
1208 | to configurations stored in byte array ("block") formats such as UEFI Variables.\r | |
1209 | \r | |
1210 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
1211 | instance.\r | |
1212 | @param ConfigResp A null-terminated Unicode string in <ConfigResp>\r | |
1213 | format.\r | |
1214 | @param Block A possibly null array of bytes representing the\r | |
1215 | current block. Only bytes referenced in the\r | |
1216 | ConfigResp string in the block are modified. If\r | |
1217 | this parameter is null or if the *BlockSize\r | |
1218 | parameter is (on input) shorter than required by\r | |
1219 | the Configuration string, only the BlockSize\r | |
1220 | parameter is updated and an appropriate status\r | |
1221 | (see below) is returned.\r | |
1222 | @param BlockSize The length of the Block in units of UINT8. On\r | |
1223 | input, this is the size of the Block. On output,\r | |
1224 | if successful, contains the index of the last\r | |
1225 | modified byte in the Block.\r | |
1226 | @param Progress On return, points to an element of the ConfigResp\r | |
1227 | string filled in with the offset of the most\r | |
1228 | recent '&' before the first failing name / value\r | |
1229 | pair (or the beginning of the string if the\r | |
1230 | failure is in the first name / value pair) or the\r | |
1231 | terminating NULL if all was successful.\r | |
1232 | \r | |
1233 | @retval EFI_SUCCESS The request succeeded. Progress points to the null\r | |
1234 | terminator at the end of the ConfigResp string.\r | |
1235 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate Config. Progress\r | |
1236 | points to the first character of ConfigResp.\r | |
1237 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the ConfigResp or\r | |
1238 | Block parameter would result in this type of\r | |
1239 | error. Progress points to the first character of\r | |
1240 | ConfigResp.\r | |
1241 | @retval EFI_INVALID_PARAMETER Encountered non <BlockName> formatted name /\r | |
1242 | value pair. Block is left updated and\r | |
1243 | Progress points at the '&' preceding the first\r | |
1244 | non-<BlockName>.\r | |
1245 | \r | |
1246 | **/\r | |
1247 | EFI_STATUS\r | |
1248 | EFIAPI\r | |
1249 | HiiConfigToBlock (\r | |
1250 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
1251 | IN CONST EFI_STRING ConfigResp,\r | |
1252 | IN OUT UINT8 *Block,\r | |
1253 | IN OUT UINTN *BlockSize,\r | |
1254 | OUT EFI_STRING *Progress\r | |
1255 | )\r | |
1256 | {\r | |
1257 | HII_DATABASE_PRIVATE_DATA *Private;\r | |
1258 | EFI_STRING StringPtr;\r | |
1259 | UINTN Length;\r | |
1260 | EFI_STATUS Status;\r | |
1261 | UINT8 *TmpBuffer;\r | |
1262 | UINTN Offset;\r | |
1263 | UINTN Width;\r | |
1264 | UINT8 *Value;\r | |
1265 | UINTN BufferSize;\r | |
1266 | \r | |
1267 | if (This == NULL || BlockSize == NULL || Progress == NULL) {\r | |
1268 | return EFI_INVALID_PARAMETER;\r | |
1269 | }\r | |
1270 | \r | |
1271 | if (ConfigResp == NULL || Block == NULL) {\r | |
1272 | *Progress = ConfigResp;\r | |
1273 | return EFI_INVALID_PARAMETER;\r | |
1274 | }\r | |
1275 | \r | |
1276 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
1277 | ASSERT (Private != NULL);\r | |
1278 | \r | |
1279 | StringPtr = ConfigResp;\r | |
1280 | BufferSize = *BlockSize;\r | |
1281 | Value = NULL;\r | |
1282 | \r | |
1283 | //\r | |
1284 | // Jump <ConfigHdr>\r | |
1285 | //\r | |
1286 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1287 | *Progress = StringPtr;\r | |
1288 | Status = EFI_INVALID_PARAMETER;\r | |
1289 | goto Exit;\r | |
1290 | }\r | |
1291 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"PATH=", StrLen (L"PATH=")) != 0) {\r | |
1292 | StringPtr++;\r | |
1293 | }\r | |
1294 | if (*StringPtr == 0) {\r | |
1295 | *Progress = StringPtr;\r | |
1296 | Status = EFI_INVALID_PARAMETER;\r | |
1297 | goto Exit;\r | |
1298 | }\r | |
08e6463a | 1299 | \r |
1300 | while (*StringPtr != L'&' && *StringPtr != 0) {\r | |
1301 | StringPtr++;\r | |
1302 | }\r | |
1303 | if (*StringPtr == 0) {\r | |
1304 | *Progress = StringPtr;\r | |
1305 | Status = EFI_INVALID_PARAMETER;\r | |
1306 | goto Exit;\r | |
1307 | }\r | |
1308 | //\r | |
1309 | // Skip '&'\r | |
1310 | //\r | |
1311 | StringPtr++;\r | |
93e3992d | 1312 | \r |
1313 | //\r | |
1314 | // Parse each <ConfigElement> if exists\r | |
1315 | // Only <BlockConfig> format is supported by this help function.\r | |
1316 | // <BlockConfig> ::= 'OFFSET='<Number>&'WIDTH='<Number>&'VALUE='<Number>\r | |
1317 | //\r | |
1318 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"OFFSET=", StrLen (L"OFFSET=")) == 0) {\r | |
1319 | StringPtr += StrLen (L"OFFSET=");\r | |
1320 | //\r | |
1321 | // Get Offset\r | |
1322 | //\r | |
1323 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
7c1bc8d6 | 1324 | if (EFI_ERROR (Status)) {\r |
93e3992d | 1325 | *Progress = ConfigResp;\r |
1326 | goto Exit;\r | |
1327 | }\r | |
1328 | Offset = 0;\r | |
1329 | CopyMem (\r | |
1330 | &Offset,\r | |
1331 | TmpBuffer,\r | |
1332 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1333 | );\r | |
676df92c | 1334 | FreePool (TmpBuffer);\r |
93e3992d | 1335 | \r |
1336 | StringPtr += Length;\r | |
1337 | if (StrnCmp (StringPtr, L"&WIDTH=", StrLen (L"&WIDTH=")) != 0) {\r | |
1338 | *Progress = StringPtr - Length - StrLen (L"OFFSET=") - 1;\r | |
1339 | Status = EFI_INVALID_PARAMETER;\r | |
1340 | goto Exit;\r | |
1341 | }\r | |
1342 | StringPtr += StrLen (L"&WIDTH=");\r | |
1343 | \r | |
1344 | //\r | |
1345 | // Get Width\r | |
1346 | //\r | |
1347 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1348 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1349 | *Progress = ConfigResp;\r | |
1350 | goto Exit;\r | |
1351 | }\r | |
1352 | Width = 0;\r | |
1353 | CopyMem (\r | |
1354 | &Width,\r | |
1355 | TmpBuffer,\r | |
1356 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1357 | );\r | |
676df92c | 1358 | FreePool (TmpBuffer);\r |
93e3992d | 1359 | \r |
1360 | StringPtr += Length;\r | |
1361 | if (StrnCmp (StringPtr, L"&VALUE=", StrLen (L"&VALUE=")) != 0) {\r | |
1362 | *Progress = StringPtr - Length - StrLen (L"&WIDTH=");\r | |
1363 | Status = EFI_INVALID_PARAMETER;\r | |
1364 | goto Exit;\r | |
1365 | }\r | |
1366 | StringPtr += StrLen (L"&VALUE=");\r | |
1367 | \r | |
1368 | //\r | |
1369 | // Get Value\r | |
1370 | //\r | |
1371 | Status = GetValueOfNumber (StringPtr, &Value, &Length);\r | |
7c1bc8d6 | 1372 | if (EFI_ERROR (Status)) {\r |
93e3992d | 1373 | *Progress = ConfigResp;\r |
1374 | goto Exit;\r | |
1375 | }\r | |
1376 | \r | |
1377 | StringPtr += Length;\r | |
1378 | if (*StringPtr != 0 && *StringPtr != L'&') {\r | |
1379 | *Progress = StringPtr - Length - 7;\r | |
1380 | Status = EFI_INVALID_PARAMETER;\r | |
1381 | goto Exit;\r | |
1382 | }\r | |
1383 | \r | |
1384 | //\r | |
1385 | // Update the Block with configuration info\r | |
1386 | //\r | |
1387 | \r | |
1388 | if (Offset + Width > BufferSize) {\r | |
1389 | return EFI_DEVICE_ERROR;\r | |
1390 | }\r | |
1391 | \r | |
1392 | CopyMem (Block + Offset, Value, Width);\r | |
1393 | *BlockSize = Offset + Width - 1;\r | |
1394 | \r | |
676df92c | 1395 | FreePool (Value);\r |
93e3992d | 1396 | Value = NULL;\r |
1397 | \r | |
1398 | //\r | |
1399 | // If '\0', parsing is finished. Otherwise skip '&' to continue\r | |
1400 | //\r | |
1401 | if (*StringPtr == 0) {\r | |
1402 | break;\r | |
1403 | }\r | |
1404 | \r | |
1405 | StringPtr++;\r | |
1406 | }\r | |
1407 | \r | |
1408 | if (*StringPtr != 0) {\r | |
1409 | *Progress = StringPtr - 1;\r | |
1410 | Status = EFI_INVALID_PARAMETER;\r | |
1411 | goto Exit;\r | |
1412 | }\r | |
1413 | \r | |
1414 | *Progress = StringPtr;\r | |
1415 | return EFI_SUCCESS;\r | |
1416 | \r | |
1417 | Exit:\r | |
1418 | \r | |
676df92c | 1419 | if (Value != NULL) {\r |
1420 | FreePool (Value);\r | |
1421 | }\r | |
93e3992d | 1422 | return Status;\r |
1423 | }\r | |
1424 | \r | |
1425 | \r | |
1426 | /**\r | |
1427 | This helper function is to be called by drivers to extract portions of\r | |
1428 | a larger configuration string.\r | |
1429 | \r | |
1430 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
1431 | instance.\r | |
1432 | @param Configuration A null-terminated Unicode string in\r | |
1433 | <MultiConfigAltResp> format.\r | |
1434 | @param Guid A pointer to the GUID value to search for in the\r | |
1435 | routing portion of the ConfigResp string when\r | |
1436 | retrieving the requested data. If Guid is NULL,\r | |
1437 | then all GUID values will be searched for.\r | |
1438 | @param Name A pointer to the NAME value to search for in the\r | |
1439 | routing portion of the ConfigResp string when\r | |
1440 | retrieving the requested data. If Name is NULL,\r | |
1441 | then all Name values will be searched for.\r | |
1442 | @param DevicePath A pointer to the PATH value to search for in the\r | |
1443 | routing portion of the ConfigResp string when\r | |
1444 | retrieving the requested data. If DevicePath is\r | |
1445 | NULL, then all DevicePath values will be searched\r | |
1446 | for.\r | |
1447 | @param AltCfgId A pointer to the ALTCFG value to search for in the\r | |
1448 | routing portion of the ConfigResp string when\r | |
1449 | retrieving the requested data. If this parameter\r | |
1450 | is NULL, then the current setting will be\r | |
1451 | retrieved.\r | |
1452 | @param AltCfgResp A pointer to a buffer which will be allocated by\r | |
1453 | the function which contains the retrieved string\r | |
1454 | as requested. This buffer is only allocated if\r | |
1455 | the call was successful.\r | |
1456 | \r | |
1457 | @retval EFI_SUCCESS The request succeeded. The requested data was\r | |
1458 | extracted and placed in the newly allocated\r | |
1459 | AltCfgResp buffer.\r | |
1460 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate AltCfgResp.\r | |
1461 | @retval EFI_INVALID_PARAMETER Any parameter is invalid.\r | |
1462 | @retval EFI_NOT_FOUND Target for the specified routing data was not\r | |
1463 | found.\r | |
1464 | \r | |
1465 | **/\r | |
1466 | EFI_STATUS\r | |
1467 | EFIAPI\r | |
1468 | HiiGetAltCfg (\r | |
1469 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
1470 | IN CONST EFI_STRING Configuration,\r | |
1471 | IN CONST EFI_GUID *Guid,\r | |
1472 | IN CONST EFI_STRING Name,\r | |
1473 | IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
1474 | IN CONST UINT16 *AltCfgId,\r | |
1475 | OUT EFI_STRING *AltCfgResp\r | |
1476 | )\r | |
1477 | {\r | |
93e3992d | 1478 | EFI_STATUS Status;\r |
1479 | EFI_STRING StringPtr;\r | |
e90b081a | 1480 | EFI_STRING HdrStart;\r |
1481 | EFI_STRING HdrEnd;\r | |
93e3992d | 1482 | EFI_STRING TmpPtr;\r |
1483 | UINTN Length;\r | |
e90b081a | 1484 | EFI_STRING GuidStr;\r |
1485 | EFI_STRING NameStr;\r | |
1486 | EFI_STRING PathStr;\r | |
1487 | EFI_STRING AltIdStr;\r | |
1488 | EFI_STRING Result;\r | |
1489 | BOOLEAN GuidFlag;\r | |
1490 | BOOLEAN NameFlag;\r | |
1491 | BOOLEAN PathFlag;\r | |
1492 | \r | |
e94358a3 | 1493 | //\r |
1494 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
1495 | // as FALSE. But this renders the system to not 100% compliant with\r | |
1496 | // UEFI 2.1. Use this with caution.\r | |
1497 | //\r | |
1498 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
1499 | return EFI_UNSUPPORTED;\r | |
1500 | }\r | |
1501 | \r | |
e90b081a | 1502 | HdrStart = NULL;\r |
1503 | HdrEnd = NULL;\r | |
1504 | GuidStr = NULL;\r | |
1505 | NameStr = NULL;\r | |
1506 | PathStr = NULL;\r | |
1507 | AltIdStr = NULL;\r | |
1508 | Result = NULL;\r | |
1509 | GuidFlag = FALSE;\r | |
1510 | NameFlag = FALSE;\r | |
1511 | PathFlag = FALSE;\r | |
93e3992d | 1512 | \r |
1513 | if (This == NULL || Configuration == NULL || AltCfgResp == NULL) {\r | |
1514 | return EFI_INVALID_PARAMETER;\r | |
1515 | }\r | |
1516 | \r | |
1517 | StringPtr = Configuration;\r | |
1518 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1519 | return EFI_INVALID_PARAMETER;\r | |
1520 | }\r | |
1521 | \r | |
1522 | //\r | |
1523 | // Generate the sub string for later matching.\r | |
1524 | //\r | |
813acf3a | 1525 | GenerateSubStr (L"GUID=", sizeof (EFI_GUID), (VOID *) Guid, 1, &GuidStr);\r |
93e3992d | 1526 | GenerateSubStr (\r |
1527 | L"PATH=",\r | |
1528 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) DevicePath),\r | |
813acf3a | 1529 | (VOID *) DevicePath,\r |
1530 | 1,\r | |
93e3992d | 1531 | &PathStr\r |
1532 | );\r | |
1533 | if (AltCfgId != NULL) {\r | |
813acf3a | 1534 | GenerateSubStr (L"ALTCFG=", sizeof (UINT16), (VOID *) AltCfgId, 3, &AltIdStr); \r |
93e3992d | 1535 | }\r |
1536 | if (Name != NULL) {\r | |
813acf3a | 1537 | GenerateSubStr (L"NAME=", StrLen (Name) * sizeof (CHAR16), (VOID *) Name, 2, &NameStr); \r |
93e3992d | 1538 | } else {\r |
813acf3a | 1539 | GenerateSubStr (L"NAME=", 0, NULL, 2, &NameStr);\r |
93e3992d | 1540 | }\r |
1541 | \r | |
1542 | while (*StringPtr != 0) {\r | |
1543 | //\r | |
1544 | // Try to match the GUID\r | |
1545 | //\r | |
1546 | if (!GuidFlag) {\r | |
1547 | TmpPtr = StrStr (StringPtr, GuidStr);\r | |
1548 | if (TmpPtr == NULL) {\r | |
1549 | Status = EFI_NOT_FOUND;\r | |
1550 | goto Exit;\r | |
1551 | }\r | |
1552 | HdrStart = TmpPtr;\r | |
1553 | \r | |
1554 | //\r | |
1555 | // Jump to <NameHdr>\r | |
1556 | //\r | |
1557 | if (Guid != NULL) {\r | |
1558 | StringPtr = TmpPtr + StrLen (GuidStr);\r | |
1559 | } else {\r | |
1560 | StringPtr = StrStr (TmpPtr, L"NAME=");\r | |
1561 | if (StringPtr == NULL) {\r | |
1562 | Status = EFI_NOT_FOUND;\r | |
1563 | goto Exit;\r | |
1564 | }\r | |
1565 | }\r | |
1566 | GuidFlag = TRUE;\r | |
1567 | }\r | |
1568 | \r | |
1569 | //\r | |
1570 | // Try to match the NAME\r | |
1571 | //\r | |
1572 | if (GuidFlag && !NameFlag) {\r | |
1573 | if (StrnCmp (StringPtr, NameStr, StrLen (NameStr)) != 0) {\r | |
1574 | GuidFlag = FALSE;\r | |
1575 | } else {\r | |
1576 | //\r | |
1577 | // Jump to <PathHdr>\r | |
1578 | //\r | |
1579 | if (Name != NULL) {\r | |
1580 | StringPtr += StrLen (NameStr);\r | |
1581 | } else {\r | |
1582 | StringPtr = StrStr (StringPtr, L"PATH=");\r | |
1583 | if (StringPtr == NULL) {\r | |
1584 | Status = EFI_NOT_FOUND;\r | |
1585 | goto Exit;\r | |
1586 | }\r | |
1587 | }\r | |
1588 | NameFlag = TRUE;\r | |
1589 | }\r | |
1590 | }\r | |
1591 | \r | |
1592 | //\r | |
1593 | // Try to match the DevicePath\r | |
1594 | //\r | |
1595 | if (GuidFlag && NameFlag && !PathFlag) {\r | |
1596 | if (StrnCmp (StringPtr, PathStr, StrLen (PathStr)) != 0) {\r | |
1597 | GuidFlag = FALSE;\r | |
1598 | NameFlag = FALSE;\r | |
1599 | } else {\r | |
1600 | //\r | |
1601 | // Jump to '&' before <DescHdr> or <ConfigBody>\r | |
1602 | //\r | |
1603 | if (DevicePath != NULL) {\r | |
1604 | StringPtr += StrLen (PathStr);\r | |
1605 | } else {\r | |
1606 | StringPtr = StrStr (StringPtr, L"&");\r | |
1607 | if (StringPtr == NULL) {\r | |
1608 | Status = EFI_NOT_FOUND;\r | |
1609 | goto Exit;\r | |
1610 | }\r | |
1611 | }\r | |
1612 | PathFlag = TRUE;\r | |
1613 | HdrEnd = ++StringPtr;\r | |
1614 | }\r | |
1615 | }\r | |
1616 | \r | |
1617 | //\r | |
1618 | // Try to match the AltCfgId\r | |
1619 | //\r | |
1620 | if (GuidFlag && NameFlag && PathFlag) {\r | |
1621 | if (AltCfgId == NULL) {\r | |
1622 | //\r | |
1623 | // Return Current Setting when AltCfgId is NULL.\r | |
1624 | //\r | |
1625 | Status = OutputConfigBody (StringPtr, &Result);\r | |
1626 | goto Exit;\r | |
1627 | }\r | |
1628 | //\r | |
1629 | // Search the <ConfigAltResp> to get the <AltResp> with AltCfgId.\r | |
1630 | //\r | |
1631 | if (StrnCmp (StringPtr, AltIdStr, StrLen (AltIdStr)) != 0) {\r | |
1632 | GuidFlag = FALSE;\r | |
1633 | NameFlag = FALSE;\r | |
1634 | PathFlag = FALSE;\r | |
1635 | } else {\r | |
1636 | Status = OutputConfigBody (StringPtr, &Result);\r | |
1637 | goto Exit;\r | |
1638 | }\r | |
1639 | }\r | |
1640 | }\r | |
1641 | \r | |
1642 | Status = EFI_NOT_FOUND;\r | |
1643 | \r | |
1644 | Exit:\r | |
1645 | \r | |
bc166db3 | 1646 | if (!EFI_ERROR (Status) && (Result != NULL)) {\r |
93e3992d | 1647 | //\r |
1648 | // Copy the <ConfigHdr> and <ConfigBody>\r | |
1649 | //\r | |
1650 | Length = HdrEnd - HdrStart + StrLen (Result);\r | |
1651 | *AltCfgResp = AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1652 | if (*AltCfgResp == NULL) {\r | |
1653 | Status = EFI_OUT_OF_RESOURCES;\r | |
1654 | } else {\r | |
1655 | StrnCpy (*AltCfgResp, HdrStart, HdrEnd - HdrStart);\r | |
1656 | StrCat (*AltCfgResp, Result);\r | |
1657 | Status = EFI_SUCCESS;\r | |
1658 | }\r | |
1659 | }\r | |
1660 | \r | |
676df92c | 1661 | if (GuidStr != NULL) {\r |
1662 | FreePool (GuidStr);\r | |
1663 | }\r | |
1664 | if (NameStr != NULL) {\r | |
1665 | FreePool (NameStr);\r | |
1666 | }\r | |
1667 | if (PathStr != NULL) {\r | |
1668 | FreePool (PathStr);\r | |
1669 | }\r | |
1670 | if (AltIdStr != NULL) {\r | |
1671 | FreePool (AltIdStr);\r | |
1672 | }\r | |
1673 | if (Result != NULL) {\r | |
1674 | FreePool (Result);\r | |
1675 | }\r | |
93e3992d | 1676 | \r |
1677 | return Status;\r | |
1678 | \r | |
93e3992d | 1679 | }\r |
1680 | \r | |
36fe40c2 | 1681 | \r |