]>
Commit | Line | Data |
---|---|---|
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 | |
273 | \r | |
e90b081a | 274 | /**\r |
275 | Adjusts the size of a previously allocated buffer.\r | |
276 | \r | |
277 | \r | |
278 | @param OldPool A pointer to the buffer whose size is being adjusted.\r | |
279 | @param OldSize The size of the current buffer.\r | |
280 | @param NewSize The size of the new buffer.\r | |
281 | \r | |
282 | @return The new buffer allocated.\r | |
283 | \r | |
284 | **/\r | |
93e3992d | 285 | VOID *\r |
286 | ReallocatePool (\r | |
287 | IN VOID *OldPool,\r | |
288 | IN UINTN OldSize,\r | |
289 | IN UINTN NewSize\r | |
290 | )\r | |
93e3992d | 291 | {\r |
292 | VOID *NewPool;\r | |
293 | \r | |
294 | NewPool = NULL;\r | |
e90b081a | 295 | if (NewSize != 0) {\r |
93e3992d | 296 | NewPool = AllocateZeroPool (NewSize);\r |
297 | }\r | |
298 | \r | |
e90b081a | 299 | if (OldPool != NULL) {\r |
300 | if (NewPool != NULL) {\r | |
93e3992d | 301 | CopyMem (NewPool, OldPool, OldSize < NewSize ? OldSize : NewSize);\r |
302 | }\r | |
303 | \r | |
f4113e1f | 304 | FreePool (OldPool);\r |
93e3992d | 305 | }\r |
306 | \r | |
307 | return NewPool;\r | |
308 | }\r | |
309 | \r | |
310 | \r | |
311 | /**\r | |
312 | Append a string to a multi-string format.\r | |
313 | \r | |
e90b081a | 314 | This is a internal function.\r |
315 | \r | |
93e3992d | 316 | @param MultiString String in <MultiConfigRequest>,\r |
317 | <MultiConfigAltResp>, or <MultiConfigResp>. On\r | |
318 | input, the buffer length of this string is\r | |
319 | MAX_STRING_LENGTH. On output, the buffer length\r | |
320 | might be updated.\r | |
321 | @param AppendString NULL-terminated Unicode string.\r | |
322 | \r | |
323 | @retval EFI_INVALID_PARAMETER Any incoming parameter is invalid.\r | |
324 | @retval EFI_SUCCESS AppendString is append to the end of MultiString\r | |
325 | \r | |
326 | **/\r | |
93e3992d | 327 | EFI_STATUS\r |
328 | AppendToMultiString (\r | |
329 | IN OUT EFI_STRING *MultiString,\r | |
330 | IN EFI_STRING AppendString\r | |
331 | )\r | |
332 | {\r | |
333 | UINTN AppendStringSize;\r | |
334 | UINTN MultiStringSize;\r | |
335 | \r | |
336 | if (MultiString == NULL || *MultiString == NULL || AppendString == NULL) {\r | |
337 | return EFI_INVALID_PARAMETER;\r | |
338 | }\r | |
339 | \r | |
340 | AppendStringSize = StrSize (AppendString);\r | |
341 | MultiStringSize = StrSize (*MultiString);\r | |
342 | \r | |
343 | //\r | |
344 | // Enlarge the buffer each time when length exceeds MAX_STRING_LENGTH.\r | |
345 | //\r | |
346 | if (MultiStringSize + AppendStringSize > MAX_STRING_LENGTH ||\r | |
347 | MultiStringSize > MAX_STRING_LENGTH) {\r | |
348 | *MultiString = (EFI_STRING) ReallocatePool (\r | |
349 | (VOID *) (*MultiString),\r | |
350 | MultiStringSize,\r | |
351 | MultiStringSize + AppendStringSize\r | |
352 | );\r | |
353 | }\r | |
354 | \r | |
355 | //\r | |
356 | // Append the incoming string\r | |
357 | //\r | |
358 | StrCat (*MultiString, AppendString);\r | |
359 | \r | |
360 | return EFI_SUCCESS;\r | |
361 | }\r | |
362 | \r | |
363 | \r | |
364 | /**\r | |
365 | Get the value of <Number> in <BlockConfig> format, i.e. the value of OFFSET\r | |
366 | or WIDTH or VALUE.\r | |
367 | <BlockConfig> ::= 'OFFSET='<Number>&'WIDTH='<Number>&'VALUE'=<Number>\r | |
368 | \r | |
e90b081a | 369 | This is a internal function.\r |
370 | \r | |
93e3992d | 371 | @param StringPtr String in <BlockConfig> format and points to the\r |
372 | first character of <Number>.\r | |
373 | @param Number The output value. Caller takes the responsibility\r | |
374 | to free memory.\r | |
375 | @param Len Length of the <Number>, in characters.\r | |
376 | \r | |
377 | @retval EFI_OUT_OF_RESOURCES Insufficient resources to store neccessary\r | |
378 | structures.\r | |
379 | @retval EFI_SUCCESS Value of <Number> is outputted in Number\r | |
380 | successfully.\r | |
381 | \r | |
382 | **/\r | |
93e3992d | 383 | EFI_STATUS\r |
384 | GetValueOfNumber (\r | |
385 | IN EFI_STRING StringPtr,\r | |
386 | OUT UINT8 **Number,\r | |
387 | OUT UINTN *Len\r | |
388 | )\r | |
389 | {\r | |
390 | EFI_STRING TmpPtr;\r | |
391 | UINTN Length;\r | |
392 | EFI_STRING Str;\r | |
393 | UINT8 *Buf;\r | |
394 | EFI_STATUS Status;\r | |
395 | \r | |
396 | ASSERT (StringPtr != NULL && Number != NULL && Len != NULL);\r | |
397 | ASSERT (*StringPtr != 0);\r | |
398 | \r | |
399 | Buf = NULL;\r | |
400 | \r | |
401 | TmpPtr = StringPtr;\r | |
402 | while (*StringPtr != 0 && *StringPtr != L'&') {\r | |
403 | StringPtr++;\r | |
404 | }\r | |
405 | *Len = StringPtr - TmpPtr;\r | |
406 | Length = *Len + 1;\r | |
407 | \r | |
408 | Str = (EFI_STRING) AllocateZeroPool (Length * sizeof (EFI_STRING));\r | |
409 | if (Str == NULL) {\r | |
410 | Status = EFI_OUT_OF_RESOURCES;\r | |
411 | goto Exit;\r | |
412 | }\r | |
413 | CopyMem (Str, TmpPtr, *Len * sizeof (CHAR16));\r | |
414 | *(Str + *Len) = 0;\r | |
415 | \r | |
416 | Length = (Length + 1) / 2;\r | |
417 | Buf = (UINT8 *) AllocateZeroPool (Length);\r | |
418 | if (Buf == NULL) {\r | |
419 | Status = EFI_OUT_OF_RESOURCES;\r | |
420 | goto Exit;\r | |
421 | }\r | |
422 | \r | |
36fe40c2 | 423 | Status = HexStringToBuf (Buf, &Length, Str, NULL);\r |
93e3992d | 424 | if (EFI_ERROR (Status)) {\r |
425 | goto Exit;\r | |
426 | }\r | |
427 | \r | |
428 | *Number = Buf;\r | |
429 | Status = EFI_SUCCESS;\r | |
430 | \r | |
431 | Exit:\r | |
676df92c | 432 | if (Str != NULL) {\r |
433 | FreePool (Str);\r | |
434 | }\r | |
93e3992d | 435 | return Status;\r |
436 | }\r | |
437 | \r | |
438 | \r | |
439 | /**\r | |
440 | This function allows a caller to extract the current configuration\r | |
441 | for one or more named elements from one or more drivers.\r | |
442 | \r | |
443 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
444 | instance.\r | |
445 | @param Request A null-terminated Unicode string in\r | |
446 | <MultiConfigRequest> format.\r | |
447 | @param Progress On return, points to a character in the Request\r | |
448 | string. Points to the string's null terminator if\r | |
449 | request was successful. Points to the most recent\r | |
450 | & before the first failing name / value pair (or\r | |
451 | the beginning of the string if the failure is in\r | |
452 | the first name / value pair) if the request was\r | |
453 | not successful.\r | |
454 | @param Results Null-terminated Unicode string in\r | |
455 | <MultiConfigAltResp> format which has all values\r | |
456 | filled in for the names in the Request string.\r | |
457 | String to be allocated by the called function.\r | |
458 | \r | |
459 | @retval EFI_SUCCESS The Results string is filled with the values\r | |
460 | corresponding to all requested names.\r | |
461 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
462 | results that must be stored awaiting possible\r | |
463 | future protocols.\r | |
464 | @retval EFI_NOT_FOUND Routing data doesn't match any known driver.\r | |
465 | Progress set to the "G" in "GUID" of the routing\r | |
466 | header that doesn't match. Note: There is no\r | |
467 | requirement that all routing data be validated\r | |
468 | before any configuration extraction.\r | |
469 | @retval EFI_INVALID_PARAMETER For example, passing in a NULL for the Request\r | |
470 | parameter would result in this type of error. The\r | |
471 | Progress parameter is set to NULL.\r | |
472 | @retval EFI_INVALID_PARAMETER Illegal syntax. Progress set to most recent &\r | |
473 | before the error or the beginning of the string.\r | |
474 | @retval EFI_INVALID_PARAMETER Unknown name. Progress points to the & before the\r | |
475 | name in question.\r | |
476 | \r | |
477 | **/\r | |
478 | EFI_STATUS\r | |
479 | EFIAPI\r | |
480 | HiiConfigRoutingExtractConfig (\r | |
481 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
482 | IN CONST EFI_STRING Request,\r | |
483 | OUT EFI_STRING *Progress,\r | |
484 | OUT EFI_STRING *Results\r | |
485 | )\r | |
486 | {\r | |
93e3992d | 487 | HII_DATABASE_PRIVATE_DATA *Private;\r |
488 | EFI_STRING StringPtr;\r | |
489 | EFI_STRING ConfigRequest;\r | |
490 | UINTN Length;\r | |
491 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
492 | EFI_STATUS Status;\r | |
493 | LIST_ENTRY *Link;\r | |
494 | HII_DATABASE_RECORD *Database;\r | |
08e6463a | 495 | UINT8 *DevicePathPkg;\r |
93e3992d | 496 | UINT8 *CurrentDevicePath;\r |
497 | EFI_HANDLE DriverHandle;\r | |
498 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
499 | EFI_STRING AccessProgress;\r | |
500 | EFI_STRING AccessResults;\r | |
8d00a0f1 | 501 | BOOLEAN FirstElement;\r |
93e3992d | 502 | \r |
e94358a3 | 503 | //\r |
504 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
505 | // as FALSE. But this renders the system to not 100% compliant with\r | |
506 | // UEFI 2.1. Use this with caution.\r | |
507 | //\r | |
508 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
509 | return EFI_UNSUPPORTED;\r | |
510 | }\r | |
511 | \r | |
93e3992d | 512 | if (This == NULL || Progress == NULL || Results == NULL) {\r |
513 | return EFI_INVALID_PARAMETER;\r | |
514 | }\r | |
515 | \r | |
516 | if (Request == NULL) {\r | |
517 | *Progress = NULL;\r | |
518 | return EFI_INVALID_PARAMETER;\r | |
519 | }\r | |
520 | \r | |
521 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
522 | StringPtr = Request;\r | |
523 | *Progress = StringPtr;\r | |
524 | \r | |
525 | //\r | |
526 | // The first element of <MultiConfigRequest> should be\r | |
527 | // <GuidHdr>, which is in 'GUID='<Guid> syntax.\r | |
528 | //\r | |
529 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
530 | return EFI_INVALID_PARAMETER;\r | |
531 | }\r | |
532 | \r | |
8d00a0f1 | 533 | FirstElement = TRUE;\r |
534 | \r | |
93e3992d | 535 | //\r |
536 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
537 | // Results if this fix length is insufficient.\r | |
538 | //\r | |
539 | *Results = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
540 | if (*Results == NULL) {\r | |
541 | return EFI_OUT_OF_RESOURCES;\r | |
542 | }\r | |
543 | \r | |
544 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) == 0) {\r | |
545 | //\r | |
546 | // If parsing error, set Progress to the beginning of the <MultiConfigRequest>\r | |
547 | // or most recent & before the error.\r | |
548 | //\r | |
549 | if (StringPtr == Request) {\r | |
550 | *Progress = StringPtr;\r | |
551 | } else {\r | |
552 | *Progress = StringPtr - 1;\r | |
553 | }\r | |
554 | \r | |
555 | //\r | |
556 | // Process each <ConfigRequest> of <MultiConfigRequest>\r | |
557 | //\r | |
558 | Length = CalculateConfigStringLen (StringPtr);\r | |
559 | ConfigRequest = AllocateCopyPool ((Length + 1) * sizeof (CHAR16), StringPtr);\r | |
560 | if (ConfigRequest == NULL) {\r | |
561 | return EFI_OUT_OF_RESOURCES;\r | |
562 | }\r | |
563 | *(ConfigRequest + Length) = 0;\r | |
564 | \r | |
565 | //\r | |
566 | // Get the UEFI device path\r | |
567 | //\r | |
568 | Status = GetDevicePath (ConfigRequest, (UINT8 **) &DevicePath);\r | |
569 | if (EFI_ERROR (Status)) {\r | |
676df92c | 570 | FreePool (ConfigRequest);\r |
93e3992d | 571 | return Status;\r |
572 | }\r | |
573 | \r | |
574 | //\r | |
575 | // Find driver which matches the routing data.\r | |
576 | //\r | |
577 | DriverHandle = NULL;\r | |
578 | for (Link = Private->DatabaseList.ForwardLink;\r | |
579 | Link != &Private->DatabaseList;\r | |
580 | Link = Link->ForwardLink\r | |
581 | ) {\r | |
582 | Database = CR (Link, HII_DATABASE_RECORD, DatabaseEntry, HII_DATABASE_RECORD_SIGNATURE);\r | |
08e6463a | 583 | \r |
584 | if ((DevicePathPkg = Database->PackageList->DevicePathPkg) != NULL) {\r | |
585 | CurrentDevicePath = DevicePathPkg + sizeof (EFI_HII_PACKAGE_HEADER);\r | |
93e3992d | 586 | if (CompareMem (\r |
587 | DevicePath,\r | |
588 | CurrentDevicePath,\r | |
589 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) CurrentDevicePath)\r | |
590 | ) == 0) {\r | |
591 | DriverHandle = Database->DriverHandle;\r | |
592 | break;\r | |
593 | }\r | |
594 | }\r | |
595 | }\r | |
596 | \r | |
676df92c | 597 | FreePool (DevicePath);\r |
93e3992d | 598 | \r |
599 | if (DriverHandle == NULL) {\r | |
600 | //\r | |
601 | // Routing data does not match any known driver.\r | |
602 | // Set Progress to the 'G' in "GUID" of the routing header.\r | |
603 | //\r | |
604 | *Progress = StringPtr;\r | |
676df92c | 605 | FreePool (ConfigRequest);\r |
93e3992d | 606 | return EFI_NOT_FOUND;\r |
607 | }\r | |
608 | \r | |
609 | //\r | |
610 | // Call corresponding ConfigAccess protocol to extract settings\r | |
611 | //\r | |
612 | Status = gBS->HandleProtocol (\r | |
613 | DriverHandle,\r | |
614 | &gEfiHiiConfigAccessProtocolGuid,\r | |
615 | (VOID **) &ConfigAccess\r | |
616 | );\r | |
617 | ASSERT_EFI_ERROR (Status);\r | |
618 | \r | |
619 | Status = ConfigAccess->ExtractConfig (\r | |
620 | ConfigAccess,\r | |
621 | ConfigRequest,\r | |
622 | &AccessProgress,\r | |
623 | &AccessResults\r | |
624 | );\r | |
625 | if (EFI_ERROR (Status)) {\r | |
626 | //\r | |
627 | // AccessProgress indicates the parsing progress on <ConfigRequest>.\r | |
628 | // Map it to the progress on <MultiConfigRequest> then return it.\r | |
629 | //\r | |
8d00a0f1 | 630 | *Progress = StrStr (StringPtr, AccessProgress);\r |
676df92c | 631 | FreePool (ConfigRequest);\r |
93e3992d | 632 | return Status;\r |
633 | }\r | |
634 | \r | |
635 | //\r | |
8d00a0f1 | 636 | // Attach this <ConfigAltResp> to a <MultiConfigAltResp>. There is a '&'\r |
637 | // which seperates the first <ConfigAltResp> and the following ones.\r | |
93e3992d | 638 | //\r |
639 | ASSERT (*AccessProgress == 0);\r | |
8d00a0f1 | 640 | \r |
641 | if (!FirstElement) {\r | |
642 | Status = AppendToMultiString (Results, L"&");\r | |
643 | ASSERT_EFI_ERROR (Status);\r | |
644 | }\r | |
645 | \r | |
93e3992d | 646 | Status = AppendToMultiString (Results, AccessResults);\r |
647 | ASSERT_EFI_ERROR (Status);\r | |
8d00a0f1 | 648 | \r |
649 | FirstElement = FALSE;\r | |
650 | \r | |
676df92c | 651 | FreePool (AccessResults);\r |
93e3992d | 652 | AccessResults = NULL;\r |
676df92c | 653 | FreePool (ConfigRequest);\r |
93e3992d | 654 | ConfigRequest = NULL;\r |
655 | \r | |
656 | //\r | |
657 | // Go to next <ConfigRequest> (skip '&').\r | |
658 | //\r | |
659 | StringPtr += Length;\r | |
660 | if (*StringPtr == 0) {\r | |
661 | *Progress = StringPtr;\r | |
662 | break;\r | |
663 | }\r | |
664 | \r | |
665 | StringPtr++;\r | |
666 | \r | |
667 | }\r | |
668 | \r | |
669 | return EFI_SUCCESS;\r | |
93e3992d | 670 | \r |
671 | }\r | |
672 | \r | |
673 | \r | |
674 | /**\r | |
675 | This function allows the caller to request the current configuration for the\r | |
676 | entirety of the current HII database and returns the data in a\r | |
677 | null-terminated Unicode string.\r | |
678 | \r | |
679 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
680 | instance.\r | |
681 | @param Results Null-terminated Unicode string in\r | |
682 | <MultiConfigAltResp> format which has all values\r | |
683 | filled in for the names in the Request string.\r | |
684 | String to be allocated by the called function.\r | |
685 | De-allocation is up to the caller.\r | |
686 | \r | |
687 | @retval EFI_SUCCESS The Results string is filled with the values\r | |
688 | corresponding to all requested names.\r | |
689 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
690 | results that must be stored awaiting possible\r | |
691 | future protocols.\r | |
692 | @retval EFI_INVALID_PARAMETER For example, passing in a NULL for the Results\r | |
693 | parameter would result in this type of error.\r | |
694 | \r | |
695 | **/\r | |
696 | EFI_STATUS\r | |
697 | EFIAPI\r | |
698 | HiiConfigRoutingExportConfig (\r | |
699 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
700 | OUT EFI_STRING *Results\r | |
701 | )\r | |
702 | {\r | |
93e3992d | 703 | EFI_STATUS Status;\r |
93e3992d | 704 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r |
8d00a0f1 | 705 | EFI_STRING AccessResults; \r |
706 | UINTN Index;\r | |
707 | EFI_HANDLE *ConfigAccessHandles;\r | |
708 | UINTN NumberConfigAccessHandles;\r | |
709 | BOOLEAN FirstElement;\r | |
93e3992d | 710 | \r |
e94358a3 | 711 | //\r |
712 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
713 | // as FALSE. But this renders the system to not 100% compliant with\r | |
714 | // UEFI 2.1. Use this with caution.\r | |
715 | //\r | |
716 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
717 | return EFI_UNSUPPORTED;\r | |
718 | }\r | |
719 | \r | |
93e3992d | 720 | if (This == NULL || Results == NULL) {\r |
721 | return EFI_INVALID_PARAMETER;\r | |
722 | }\r | |
723 | \r | |
93e3992d | 724 | //\r |
725 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
726 | // Results if this fix length is insufficient.\r | |
727 | //\r | |
728 | *Results = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
729 | if (*Results == NULL) {\r | |
730 | return EFI_OUT_OF_RESOURCES;\r | |
731 | }\r | |
732 | \r | |
8d00a0f1 | 733 | NumberConfigAccessHandles = 0;\r |
734 | Status = gBS->LocateHandleBuffer (\r | |
735 | ByProtocol,\r | |
736 | &gEfiHiiConfigAccessProtocolGuid,\r | |
737 | NULL,\r | |
738 | &NumberConfigAccessHandles,\r | |
739 | &ConfigAccessHandles\r | |
740 | );\r | |
741 | if (EFI_ERROR (Status)) {\r | |
742 | return Status;\r | |
743 | }\r | |
93e3992d | 744 | \r |
8d00a0f1 | 745 | FirstElement = TRUE;\r |
93e3992d | 746 | \r |
8d00a0f1 | 747 | for (Index = 0; Index < NumberConfigAccessHandles; Index++) {\r |
93e3992d | 748 | Status = gBS->HandleProtocol (\r |
8d00a0f1 | 749 | ConfigAccessHandles[Index],\r |
93e3992d | 750 | &gEfiHiiConfigAccessProtocolGuid,\r |
8d00a0f1 | 751 | (VOID **) &ConfigAccess\r |
93e3992d | 752 | );\r |
8d00a0f1 | 753 | if (EFI_ERROR (Status)) {\r |
754 | continue;\r | |
755 | }\r | |
93e3992d | 756 | \r |
757 | Status = ConfigAccess->ExtractConfig (\r | |
758 | ConfigAccess,\r | |
8d00a0f1 | 759 | NULL,\r |
760 | NULL,\r | |
93e3992d | 761 | &AccessResults\r |
762 | );\r | |
8d00a0f1 | 763 | if (!EFI_ERROR (Status)) {\r |
764 | //\r | |
765 | // Attach this <ConfigAltResp> to a <MultiConfigAltResp>. There is a '&'\r | |
766 | // which seperates the first <ConfigAltResp> and the following ones. \r | |
767 | //\r | |
768 | if (!FirstElement) {\r | |
769 | Status = AppendToMultiString (Results, L"&");\r | |
770 | ASSERT_EFI_ERROR (Status);\r | |
676df92c | 771 | }\r |
8d00a0f1 | 772 | \r |
773 | Status = AppendToMultiString (Results, AccessResults);\r | |
774 | ASSERT_EFI_ERROR (Status);\r | |
93e3992d | 775 | \r |
8d00a0f1 | 776 | FirstElement = FALSE;\r |
777 | \r | |
778 | FreePool (AccessResults);\r | |
779 | AccessResults = NULL;\r | |
780 | }\r | |
93e3992d | 781 | }\r |
f4113e1f | 782 | FreePool (ConfigAccessHandles);\r |
93e3992d | 783 | \r |
8d00a0f1 | 784 | return EFI_SUCCESS; \r |
93e3992d | 785 | }\r |
786 | \r | |
787 | \r | |
788 | /**\r | |
789 | This function processes the results of processing forms and routes it to the\r | |
790 | appropriate handlers or storage.\r | |
791 | \r | |
792 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
793 | instance.\r | |
794 | @param Configuration A null-terminated Unicode string in\r | |
795 | <MulltiConfigResp> format.\r | |
796 | @param Progress A pointer to a string filled in with the offset of\r | |
797 | the most recent & before the first failing name /\r | |
798 | value pair (or the beginning of the string if the\r | |
799 | failure is in the first name / value pair) or the\r | |
800 | terminating NULL if all was successful.\r | |
801 | \r | |
802 | @retval EFI_SUCCESS The results have been distributed or are awaiting\r | |
803 | distribution.\r | |
804 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
805 | results that must be stored awaiting possible\r | |
806 | future protocols.\r | |
807 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the Configuration parameter\r | |
808 | would result in this type of error.\r | |
809 | @retval EFI_NOT_FOUND Target for the specified routing data was not\r | |
810 | found.\r | |
811 | \r | |
812 | **/\r | |
813 | EFI_STATUS\r | |
814 | EFIAPI\r | |
813acf3a | 815 | HiiConfigRoutingRouteConfig (\r |
93e3992d | 816 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r |
817 | IN CONST EFI_STRING Configuration,\r | |
818 | OUT EFI_STRING *Progress\r | |
819 | )\r | |
820 | {\r | |
93e3992d | 821 | HII_DATABASE_PRIVATE_DATA *Private;\r |
822 | EFI_STRING StringPtr;\r | |
823 | EFI_STRING ConfigResp;\r | |
824 | UINTN Length;\r | |
825 | EFI_STATUS Status;\r | |
826 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
827 | LIST_ENTRY *Link;\r | |
828 | HII_DATABASE_RECORD *Database;\r | |
08e6463a | 829 | UINT8 *DevicePathPkg;\r |
93e3992d | 830 | UINT8 *CurrentDevicePath;\r |
831 | EFI_HANDLE DriverHandle;\r | |
832 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
833 | EFI_STRING AccessProgress;\r | |
93e3992d | 834 | \r |
e94358a3 | 835 | //\r |
836 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
837 | // as FALSE. But this renders the system to not 100% compliant with\r | |
838 | // UEFI 2.1. Use this with caution.\r | |
839 | //\r | |
840 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
841 | return EFI_UNSUPPORTED;\r | |
842 | }\r | |
843 | \r | |
93e3992d | 844 | if (This == NULL || Progress == NULL) {\r |
845 | return EFI_INVALID_PARAMETER;\r | |
846 | }\r | |
847 | \r | |
848 | if (Configuration == NULL) {\r | |
849 | *Progress = NULL;\r | |
850 | return EFI_INVALID_PARAMETER;\r | |
851 | }\r | |
852 | \r | |
853 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
854 | StringPtr = Configuration;\r | |
855 | *Progress = StringPtr;\r | |
856 | \r | |
857 | //\r | |
858 | // The first element of <MultiConfigResp> should be\r | |
859 | // <GuidHdr>, which is in 'GUID='<Guid> syntax.\r | |
860 | //\r | |
861 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
862 | return EFI_INVALID_PARAMETER;\r | |
863 | }\r | |
864 | \r | |
865 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) == 0) {\r | |
866 | //\r | |
867 | // If parsing error, set Progress to the beginning of the <MultiConfigResp>\r | |
868 | // or most recent & before the error.\r | |
869 | //\r | |
870 | if (StringPtr == Configuration) {\r | |
871 | *Progress = StringPtr;\r | |
872 | } else {\r | |
873 | *Progress = StringPtr - 1;\r | |
874 | }\r | |
875 | \r | |
876 | //\r | |
877 | // Process each <ConfigResp> of <MultiConfigResp>\r | |
878 | //\r | |
879 | Length = CalculateConfigStringLen (StringPtr);\r | |
880 | ConfigResp = AllocateCopyPool ((Length + 1) * sizeof (CHAR16), StringPtr);\r | |
881 | if (ConfigResp == NULL) {\r | |
882 | return EFI_OUT_OF_RESOURCES;\r | |
883 | }\r | |
884 | //\r | |
885 | // Append '\0' to the end of ConfigRequest\r | |
886 | //\r | |
887 | *(ConfigResp + Length) = 0;\r | |
888 | \r | |
889 | //\r | |
890 | // Get the UEFI device path\r | |
891 | //\r | |
892 | Status = GetDevicePath (ConfigResp, (UINT8 **) &DevicePath);\r | |
893 | if (EFI_ERROR (Status)) {\r | |
676df92c | 894 | FreePool (ConfigResp);\r |
93e3992d | 895 | return Status;\r |
896 | }\r | |
897 | \r | |
898 | //\r | |
899 | // Find driver which matches the routing data.\r | |
900 | //\r | |
901 | DriverHandle = NULL;\r | |
902 | for (Link = Private->DatabaseList.ForwardLink;\r | |
903 | Link != &Private->DatabaseList;\r | |
904 | Link = Link->ForwardLink\r | |
905 | ) {\r | |
906 | Database = CR (Link, HII_DATABASE_RECORD, DatabaseEntry, HII_DATABASE_RECORD_SIGNATURE);\r | |
08e6463a | 907 | \r |
908 | if ((DevicePathPkg = Database->PackageList->DevicePathPkg) != NULL) {\r | |
909 | CurrentDevicePath = DevicePathPkg + sizeof (EFI_HII_PACKAGE_HEADER);\r | |
93e3992d | 910 | if (CompareMem (\r |
911 | DevicePath,\r | |
912 | CurrentDevicePath,\r | |
913 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) CurrentDevicePath)\r | |
914 | ) == 0) {\r | |
915 | DriverHandle = Database->DriverHandle;\r | |
916 | break;\r | |
917 | }\r | |
918 | }\r | |
919 | }\r | |
920 | \r | |
676df92c | 921 | FreePool (DevicePath);\r |
93e3992d | 922 | \r |
923 | if (DriverHandle == NULL) {\r | |
924 | //\r | |
925 | // Routing data does not match any known driver.\r | |
926 | // Set Progress to the 'G' in "GUID" of the routing header.\r | |
927 | //\r | |
928 | *Progress = StringPtr;\r | |
676df92c | 929 | FreePool (ConfigResp);\r |
93e3992d | 930 | return EFI_NOT_FOUND;\r |
931 | }\r | |
932 | \r | |
933 | //\r | |
934 | // Call corresponding ConfigAccess protocol to route settings\r | |
935 | //\r | |
936 | Status = gBS->HandleProtocol (\r | |
937 | DriverHandle,\r | |
938 | &gEfiHiiConfigAccessProtocolGuid,\r | |
939 | (VOID **) &ConfigAccess\r | |
940 | );\r | |
941 | ASSERT_EFI_ERROR (Status);\r | |
942 | \r | |
943 | Status = ConfigAccess->RouteConfig (\r | |
944 | ConfigAccess,\r | |
945 | ConfigResp,\r | |
946 | &AccessProgress\r | |
947 | );\r | |
948 | \r | |
949 | if (EFI_ERROR (Status)) {\r | |
950 | //\r | |
951 | // AccessProgress indicates the parsing progress on <ConfigResp>.\r | |
952 | // Map it to the progress on <MultiConfigResp> then return it.\r | |
953 | //\r | |
8d00a0f1 | 954 | *Progress = StrStr (StringPtr, AccessProgress);\r |
93e3992d | 955 | \r |
676df92c | 956 | FreePool (ConfigResp);\r |
93e3992d | 957 | return Status;\r |
958 | }\r | |
959 | \r | |
676df92c | 960 | FreePool (ConfigResp);\r |
93e3992d | 961 | ConfigResp = NULL;\r |
962 | \r | |
963 | //\r | |
964 | // Go to next <ConfigResp> (skip '&').\r | |
965 | //\r | |
966 | StringPtr += Length;\r | |
967 | if (*StringPtr == 0) {\r | |
968 | *Progress = StringPtr;\r | |
969 | break;\r | |
970 | }\r | |
971 | \r | |
972 | StringPtr++;\r | |
973 | \r | |
974 | }\r | |
975 | \r | |
976 | return EFI_SUCCESS;\r | |
93e3992d | 977 | }\r |
978 | \r | |
979 | \r | |
980 | /**\r | |
981 | This helper function is to be called by drivers to map configuration data\r | |
982 | stored in byte array ("block") formats such as UEFI Variables into current\r | |
983 | configuration strings.\r | |
984 | \r | |
985 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
986 | instance.\r | |
987 | @param ConfigRequest A null-terminated Unicode string in\r | |
988 | <ConfigRequest> format.\r | |
989 | @param Block Array of bytes defining the block's configuration.\r | |
990 | @param BlockSize Length in bytes of Block.\r | |
991 | @param Config Filled-in configuration string. String allocated\r | |
992 | by the function. Returned only if call is\r | |
993 | successful.\r | |
994 | @param Progress A pointer to a string filled in with the offset of\r | |
995 | the most recent & before the first failing\r | |
996 | name/value pair (or the beginning of the string if\r | |
997 | the failure is in the first name / value pair) or\r | |
998 | the terminating NULL if all was successful.\r | |
999 | \r | |
1000 | @retval EFI_SUCCESS The request succeeded. Progress points to the null\r | |
1001 | terminator at the end of the ConfigRequest\r | |
1002 | string.\r | |
1003 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate Config. Progress\r | |
1004 | points to the first character of ConfigRequest.\r | |
1005 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the ConfigRequest or\r | |
1006 | Block parameter would result in this type of\r | |
1007 | error. Progress points to the first character of\r | |
1008 | ConfigRequest.\r | |
1009 | @retval EFI_DEVICE_ERROR Block not large enough. Progress undefined.\r | |
1010 | @retval EFI_INVALID_PARAMETER Encountered non <BlockName> formatted string.\r | |
1011 | Block is left updated and Progress points at\r | |
1012 | the "&" preceding the first non-<BlockName>.\r | |
1013 | \r | |
1014 | **/\r | |
1015 | EFI_STATUS\r | |
1016 | EFIAPI\r | |
1017 | HiiBlockToConfig (\r | |
1018 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
1019 | IN CONST EFI_STRING ConfigRequest,\r | |
1020 | IN CONST UINT8 *Block,\r | |
1021 | IN CONST UINTN BlockSize,\r | |
1022 | OUT EFI_STRING *Config,\r | |
1023 | OUT EFI_STRING *Progress\r | |
1024 | )\r | |
1025 | {\r | |
1026 | HII_DATABASE_PRIVATE_DATA *Private;\r | |
1027 | EFI_STRING StringPtr;\r | |
1028 | UINTN Length;\r | |
1029 | EFI_STATUS Status;\r | |
1030 | EFI_STRING TmpPtr;\r | |
1031 | UINT8 *TmpBuffer;\r | |
1032 | UINTN Offset;\r | |
1033 | UINTN Width;\r | |
1034 | UINT8 *Value;\r | |
1035 | EFI_STRING ValueStr;\r | |
1036 | EFI_STRING ConfigElement;\r | |
1037 | \r | |
1038 | if (This == NULL || Progress == NULL || Config == NULL) {\r | |
1039 | return EFI_INVALID_PARAMETER;\r | |
1040 | }\r | |
1041 | \r | |
1042 | if (Block == NULL || ConfigRequest == NULL) {\r | |
1043 | *Progress = ConfigRequest;\r | |
1044 | return EFI_INVALID_PARAMETER;\r | |
1045 | }\r | |
1046 | \r | |
1047 | \r | |
1048 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
1049 | ASSERT (Private != NULL);\r | |
1050 | \r | |
1051 | StringPtr = ConfigRequest;\r | |
1052 | ValueStr = NULL;\r | |
1053 | Value = NULL;\r | |
1054 | ConfigElement = NULL;\r | |
1055 | \r | |
1056 | //\r | |
1057 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
1058 | // Results if this fix length is insufficient.\r | |
1059 | //\r | |
1060 | *Config = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
1061 | if (*Config == NULL) {\r | |
1062 | return EFI_OUT_OF_RESOURCES;\r | |
1063 | }\r | |
1064 | \r | |
1065 | //\r | |
1066 | // Jump <ConfigHdr>\r | |
1067 | //\r | |
1068 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1069 | *Progress = StringPtr;\r | |
1070 | Status = EFI_INVALID_PARAMETER;\r | |
1071 | goto Exit;\r | |
1072 | }\r | |
1073 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"PATH=", StrLen (L"PATH=")) != 0) {\r | |
1074 | StringPtr++;\r | |
1075 | }\r | |
1076 | if (*StringPtr == 0) {\r | |
1077 | *Progress = StringPtr;\r | |
1078 | Status = EFI_INVALID_PARAMETER;\r | |
1079 | goto Exit;\r | |
1080 | }\r | |
08e6463a | 1081 | \r |
1082 | while (*StringPtr != L'&' && *StringPtr != 0) {\r | |
1083 | StringPtr++;\r | |
1084 | }\r | |
1085 | if (*StringPtr == 0) {\r | |
1086 | *Progress = StringPtr;\r | |
1087 | Status = EFI_INVALID_PARAMETER;\r | |
1088 | goto Exit;\r | |
1089 | }\r | |
1090 | //\r | |
1091 | // Skip '&'\r | |
1092 | //\r | |
1093 | StringPtr++;\r | |
93e3992d | 1094 | \r |
1095 | //\r | |
1096 | // Copy <ConfigHdr> and an additional '&' to <ConfigResp>\r | |
1097 | //\r | |
1098 | Length = StringPtr - ConfigRequest;\r | |
1099 | CopyMem (*Config, ConfigRequest, Length * sizeof (CHAR16));\r | |
1100 | \r | |
1101 | //\r | |
1102 | // Parse each <RequestElement> if exists\r | |
1103 | // Only <BlockName> format is supported by this help function.\r | |
1104 | // <BlockName> ::= 'OFFSET='<Number>&'WIDTH='<Number>\r | |
1105 | //\r | |
1106 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"OFFSET=", StrLen (L"OFFSET=")) == 0) {\r | |
1107 | //\r | |
1108 | // Back up the header of one <BlockName>\r | |
1109 | //\r | |
1110 | TmpPtr = StringPtr;\r | |
1111 | \r | |
1112 | StringPtr += StrLen (L"OFFSET=");\r | |
1113 | //\r | |
1114 | // Get Offset\r | |
1115 | //\r | |
1116 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1117 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1118 | *Progress = ConfigRequest;\r | |
1119 | goto Exit;\r | |
1120 | }\r | |
1121 | Offset = 0;\r | |
1122 | CopyMem (\r | |
1123 | &Offset,\r | |
1124 | TmpBuffer,\r | |
1125 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1126 | );\r | |
676df92c | 1127 | FreePool (TmpBuffer);\r |
93e3992d | 1128 | \r |
1129 | StringPtr += Length;\r | |
1130 | if (StrnCmp (StringPtr, L"&WIDTH=", StrLen (L"&WIDTH=")) != 0) {\r | |
1131 | *Progress = StringPtr - Length - StrLen (L"OFFSET=") - 1;\r | |
1132 | Status = EFI_INVALID_PARAMETER;\r | |
1133 | goto Exit;\r | |
1134 | }\r | |
1135 | StringPtr += StrLen (L"&WIDTH=");\r | |
1136 | \r | |
1137 | //\r | |
1138 | // Get Width\r | |
1139 | //\r | |
1140 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1141 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1142 | *Progress = ConfigRequest;\r | |
1143 | goto Exit;\r | |
1144 | }\r | |
1145 | Width = 0;\r | |
1146 | CopyMem (\r | |
1147 | &Width,\r | |
1148 | TmpBuffer,\r | |
1149 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1150 | );\r | |
676df92c | 1151 | FreePool (TmpBuffer);\r |
93e3992d | 1152 | \r |
1153 | StringPtr += Length;\r | |
1154 | if (*StringPtr != 0 && *StringPtr != L'&') {\r | |
1155 | *Progress = StringPtr - Length - StrLen (L"&WIDTH=");\r | |
1156 | Status = EFI_INVALID_PARAMETER;\r | |
1157 | goto Exit;\r | |
1158 | }\r | |
1159 | \r | |
1160 | //\r | |
1161 | // Calculate Value and convert it to hex string.\r | |
1162 | //\r | |
1163 | if (Offset + Width > BlockSize) {\r | |
1164 | *Progress = StringPtr;\r | |
1165 | Status = EFI_DEVICE_ERROR;\r | |
1166 | goto Exit;\r | |
1167 | }\r | |
1168 | \r | |
1169 | Value = (UINT8 *) AllocateZeroPool (Width);\r | |
1170 | if (Value == NULL) {\r | |
1171 | *Progress = ConfigRequest;\r | |
1172 | Status = EFI_OUT_OF_RESOURCES;\r | |
1173 | goto Exit;\r | |
1174 | }\r | |
1175 | \r | |
1176 | CopyMem (Value, (UINT8 *) Block + Offset, Width);\r | |
1177 | \r | |
1178 | Length = Width * 2 + 1;\r | |
1179 | ValueStr = (EFI_STRING) AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1180 | if (ValueStr == NULL) {\r | |
1181 | *Progress = ConfigRequest;\r | |
1182 | Status = EFI_OUT_OF_RESOURCES;\r | |
1183 | goto Exit;\r | |
1184 | }\r | |
1185 | \r | |
36fe40c2 | 1186 | Status = BufToHexString (ValueStr, &Length, Value, Width);\r |
93e3992d | 1187 | ASSERT_EFI_ERROR (Status);\r |
813acf3a | 1188 | ToLower (ValueStr);\r |
1189 | \r | |
676df92c | 1190 | FreePool (Value);\r |
93e3992d | 1191 | Value = NULL;\r |
1192 | \r | |
1193 | //\r | |
1194 | // Build a ConfigElement\r | |
1195 | //\r | |
1196 | Length += StringPtr - TmpPtr + 1 + StrLen (L"VALUE=");\r | |
1197 | ConfigElement = (EFI_STRING) AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1198 | if (ConfigElement == NULL) {\r | |
1199 | Status = EFI_OUT_OF_RESOURCES;\r | |
1200 | goto Exit;\r | |
1201 | }\r | |
1202 | CopyMem (ConfigElement, TmpPtr, (StringPtr - TmpPtr + 1) * sizeof (CHAR16));\r | |
1203 | if (*StringPtr == 0) {\r | |
1204 | *(ConfigElement + (StringPtr - TmpPtr)) = L'&';\r | |
1205 | }\r | |
1206 | *(ConfigElement + (StringPtr - TmpPtr) + 1) = 0;\r | |
1207 | StrCat (ConfigElement, L"VALUE=");\r | |
1208 | StrCat (ConfigElement, ValueStr);\r | |
1209 | \r | |
1210 | AppendToMultiString (Config, ConfigElement);\r | |
1211 | \r | |
676df92c | 1212 | FreePool (ConfigElement);\r |
1213 | FreePool (ValueStr);\r | |
93e3992d | 1214 | ConfigElement = NULL;\r |
1215 | ValueStr = NULL;\r | |
1216 | \r | |
1217 | //\r | |
1218 | // If '\0', parsing is finished. Otherwise skip '&' to continue\r | |
1219 | //\r | |
1220 | if (*StringPtr == 0) {\r | |
1221 | break;\r | |
1222 | }\r | |
1223 | AppendToMultiString (Config, L"&");\r | |
1224 | StringPtr++;\r | |
1225 | \r | |
1226 | }\r | |
1227 | \r | |
1228 | if (*StringPtr != 0) {\r | |
1229 | *Progress = StringPtr - 1;\r | |
1230 | Status = EFI_INVALID_PARAMETER;\r | |
1231 | goto Exit;\r | |
1232 | }\r | |
1233 | \r | |
1234 | *Progress = StringPtr;\r | |
1235 | return EFI_SUCCESS;\r | |
1236 | \r | |
1237 | Exit:\r | |
676df92c | 1238 | FreePool (*Config);\r |
1239 | if (ValueStr != NULL) {\r | |
1240 | FreePool (ValueStr);\r | |
1241 | }\r | |
1242 | if (Value != NULL) {\r | |
1243 | FreePool (Value);\r | |
1244 | }\r | |
69367b5b | 1245 | if (ConfigElement != NULL) {\r |
676df92c | 1246 | FreePool (ConfigElement);\r |
1247 | }\r | |
93e3992d | 1248 | \r |
1249 | return Status;\r | |
1250 | \r | |
1251 | }\r | |
1252 | \r | |
1253 | \r | |
1254 | /**\r | |
1255 | This helper function is to be called by drivers to map configuration strings\r | |
1256 | to configurations stored in byte array ("block") formats such as UEFI Variables.\r | |
1257 | \r | |
1258 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
1259 | instance.\r | |
1260 | @param ConfigResp A null-terminated Unicode string in <ConfigResp>\r | |
1261 | format.\r | |
1262 | @param Block A possibly null array of bytes representing the\r | |
1263 | current block. Only bytes referenced in the\r | |
1264 | ConfigResp string in the block are modified. If\r | |
1265 | this parameter is null or if the *BlockSize\r | |
1266 | parameter is (on input) shorter than required by\r | |
1267 | the Configuration string, only the BlockSize\r | |
1268 | parameter is updated and an appropriate status\r | |
1269 | (see below) is returned.\r | |
1270 | @param BlockSize The length of the Block in units of UINT8. On\r | |
1271 | input, this is the size of the Block. On output,\r | |
1272 | if successful, contains the index of the last\r | |
1273 | modified byte in the Block.\r | |
1274 | @param Progress On return, points to an element of the ConfigResp\r | |
1275 | string filled in with the offset of the most\r | |
1276 | recent '&' before the first failing name / value\r | |
1277 | pair (or the beginning of the string if the\r | |
1278 | failure is in the first name / value pair) or the\r | |
1279 | terminating NULL if all was successful.\r | |
1280 | \r | |
1281 | @retval EFI_SUCCESS The request succeeded. Progress points to the null\r | |
1282 | terminator at the end of the ConfigResp string.\r | |
1283 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate Config. Progress\r | |
1284 | points to the first character of ConfigResp.\r | |
1285 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the ConfigResp or\r | |
1286 | Block parameter would result in this type of\r | |
1287 | error. Progress points to the first character of\r | |
1288 | ConfigResp.\r | |
1289 | @retval EFI_INVALID_PARAMETER Encountered non <BlockName> formatted name /\r | |
1290 | value pair. Block is left updated and\r | |
1291 | Progress points at the '&' preceding the first\r | |
1292 | non-<BlockName>.\r | |
1293 | \r | |
1294 | **/\r | |
1295 | EFI_STATUS\r | |
1296 | EFIAPI\r | |
1297 | HiiConfigToBlock (\r | |
1298 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
1299 | IN CONST EFI_STRING ConfigResp,\r | |
1300 | IN OUT UINT8 *Block,\r | |
1301 | IN OUT UINTN *BlockSize,\r | |
1302 | OUT EFI_STRING *Progress\r | |
1303 | )\r | |
1304 | {\r | |
1305 | HII_DATABASE_PRIVATE_DATA *Private;\r | |
1306 | EFI_STRING StringPtr;\r | |
1307 | UINTN Length;\r | |
1308 | EFI_STATUS Status;\r | |
1309 | UINT8 *TmpBuffer;\r | |
1310 | UINTN Offset;\r | |
1311 | UINTN Width;\r | |
1312 | UINT8 *Value;\r | |
1313 | UINTN BufferSize;\r | |
1314 | \r | |
1315 | if (This == NULL || BlockSize == NULL || Progress == NULL) {\r | |
1316 | return EFI_INVALID_PARAMETER;\r | |
1317 | }\r | |
1318 | \r | |
1319 | if (ConfigResp == NULL || Block == NULL) {\r | |
1320 | *Progress = ConfigResp;\r | |
1321 | return EFI_INVALID_PARAMETER;\r | |
1322 | }\r | |
1323 | \r | |
1324 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
1325 | ASSERT (Private != NULL);\r | |
1326 | \r | |
1327 | StringPtr = ConfigResp;\r | |
1328 | BufferSize = *BlockSize;\r | |
1329 | Value = NULL;\r | |
1330 | \r | |
1331 | //\r | |
1332 | // Jump <ConfigHdr>\r | |
1333 | //\r | |
1334 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1335 | *Progress = StringPtr;\r | |
1336 | Status = EFI_INVALID_PARAMETER;\r | |
1337 | goto Exit;\r | |
1338 | }\r | |
1339 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"PATH=", StrLen (L"PATH=")) != 0) {\r | |
1340 | StringPtr++;\r | |
1341 | }\r | |
1342 | if (*StringPtr == 0) {\r | |
1343 | *Progress = StringPtr;\r | |
1344 | Status = EFI_INVALID_PARAMETER;\r | |
1345 | goto Exit;\r | |
1346 | }\r | |
08e6463a | 1347 | \r |
1348 | while (*StringPtr != L'&' && *StringPtr != 0) {\r | |
1349 | StringPtr++;\r | |
1350 | }\r | |
1351 | if (*StringPtr == 0) {\r | |
1352 | *Progress = StringPtr;\r | |
1353 | Status = EFI_INVALID_PARAMETER;\r | |
1354 | goto Exit;\r | |
1355 | }\r | |
1356 | //\r | |
1357 | // Skip '&'\r | |
1358 | //\r | |
1359 | StringPtr++;\r | |
93e3992d | 1360 | \r |
1361 | //\r | |
1362 | // Parse each <ConfigElement> if exists\r | |
1363 | // Only <BlockConfig> format is supported by this help function.\r | |
1364 | // <BlockConfig> ::= 'OFFSET='<Number>&'WIDTH='<Number>&'VALUE='<Number>\r | |
1365 | //\r | |
1366 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"OFFSET=", StrLen (L"OFFSET=")) == 0) {\r | |
1367 | StringPtr += StrLen (L"OFFSET=");\r | |
1368 | //\r | |
1369 | // Get Offset\r | |
1370 | //\r | |
1371 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1372 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1373 | *Progress = ConfigResp;\r | |
1374 | goto Exit;\r | |
1375 | }\r | |
1376 | Offset = 0;\r | |
1377 | CopyMem (\r | |
1378 | &Offset,\r | |
1379 | TmpBuffer,\r | |
1380 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1381 | );\r | |
676df92c | 1382 | FreePool (TmpBuffer);\r |
93e3992d | 1383 | \r |
1384 | StringPtr += Length;\r | |
1385 | if (StrnCmp (StringPtr, L"&WIDTH=", StrLen (L"&WIDTH=")) != 0) {\r | |
1386 | *Progress = StringPtr - Length - StrLen (L"OFFSET=") - 1;\r | |
1387 | Status = EFI_INVALID_PARAMETER;\r | |
1388 | goto Exit;\r | |
1389 | }\r | |
1390 | StringPtr += StrLen (L"&WIDTH=");\r | |
1391 | \r | |
1392 | //\r | |
1393 | // Get Width\r | |
1394 | //\r | |
1395 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1396 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1397 | *Progress = ConfigResp;\r | |
1398 | goto Exit;\r | |
1399 | }\r | |
1400 | Width = 0;\r | |
1401 | CopyMem (\r | |
1402 | &Width,\r | |
1403 | TmpBuffer,\r | |
1404 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1405 | );\r | |
676df92c | 1406 | FreePool (TmpBuffer);\r |
93e3992d | 1407 | \r |
1408 | StringPtr += Length;\r | |
1409 | if (StrnCmp (StringPtr, L"&VALUE=", StrLen (L"&VALUE=")) != 0) {\r | |
1410 | *Progress = StringPtr - Length - StrLen (L"&WIDTH=");\r | |
1411 | Status = EFI_INVALID_PARAMETER;\r | |
1412 | goto Exit;\r | |
1413 | }\r | |
1414 | StringPtr += StrLen (L"&VALUE=");\r | |
1415 | \r | |
1416 | //\r | |
1417 | // Get Value\r | |
1418 | //\r | |
1419 | Status = GetValueOfNumber (StringPtr, &Value, &Length);\r | |
1420 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1421 | *Progress = ConfigResp;\r | |
1422 | goto Exit;\r | |
1423 | }\r | |
1424 | \r | |
1425 | StringPtr += Length;\r | |
1426 | if (*StringPtr != 0 && *StringPtr != L'&') {\r | |
1427 | *Progress = StringPtr - Length - 7;\r | |
1428 | Status = EFI_INVALID_PARAMETER;\r | |
1429 | goto Exit;\r | |
1430 | }\r | |
1431 | \r | |
1432 | //\r | |
1433 | // Update the Block with configuration info\r | |
1434 | //\r | |
1435 | \r | |
1436 | if (Offset + Width > BufferSize) {\r | |
1437 | return EFI_DEVICE_ERROR;\r | |
1438 | }\r | |
1439 | \r | |
1440 | CopyMem (Block + Offset, Value, Width);\r | |
1441 | *BlockSize = Offset + Width - 1;\r | |
1442 | \r | |
676df92c | 1443 | FreePool (Value);\r |
93e3992d | 1444 | Value = NULL;\r |
1445 | \r | |
1446 | //\r | |
1447 | // If '\0', parsing is finished. Otherwise skip '&' to continue\r | |
1448 | //\r | |
1449 | if (*StringPtr == 0) {\r | |
1450 | break;\r | |
1451 | }\r | |
1452 | \r | |
1453 | StringPtr++;\r | |
1454 | }\r | |
1455 | \r | |
1456 | if (*StringPtr != 0) {\r | |
1457 | *Progress = StringPtr - 1;\r | |
1458 | Status = EFI_INVALID_PARAMETER;\r | |
1459 | goto Exit;\r | |
1460 | }\r | |
1461 | \r | |
1462 | *Progress = StringPtr;\r | |
1463 | return EFI_SUCCESS;\r | |
1464 | \r | |
1465 | Exit:\r | |
1466 | \r | |
676df92c | 1467 | if (Value != NULL) {\r |
1468 | FreePool (Value);\r | |
1469 | }\r | |
93e3992d | 1470 | return Status;\r |
1471 | }\r | |
1472 | \r | |
1473 | \r | |
1474 | /**\r | |
1475 | This helper function is to be called by drivers to extract portions of\r | |
1476 | a larger configuration string.\r | |
1477 | \r | |
1478 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
1479 | instance.\r | |
1480 | @param Configuration A null-terminated Unicode string in\r | |
1481 | <MultiConfigAltResp> format.\r | |
1482 | @param Guid A pointer to the GUID value to search for in the\r | |
1483 | routing portion of the ConfigResp string when\r | |
1484 | retrieving the requested data. If Guid is NULL,\r | |
1485 | then all GUID values will be searched for.\r | |
1486 | @param Name A pointer to the NAME value to search for in the\r | |
1487 | routing portion of the ConfigResp string when\r | |
1488 | retrieving the requested data. If Name is NULL,\r | |
1489 | then all Name values will be searched for.\r | |
1490 | @param DevicePath A pointer to the PATH value to search for in the\r | |
1491 | routing portion of the ConfigResp string when\r | |
1492 | retrieving the requested data. If DevicePath is\r | |
1493 | NULL, then all DevicePath values will be searched\r | |
1494 | for.\r | |
1495 | @param AltCfgId A pointer to the ALTCFG value to search for in the\r | |
1496 | routing portion of the ConfigResp string when\r | |
1497 | retrieving the requested data. If this parameter\r | |
1498 | is NULL, then the current setting will be\r | |
1499 | retrieved.\r | |
1500 | @param AltCfgResp A pointer to a buffer which will be allocated by\r | |
1501 | the function which contains the retrieved string\r | |
1502 | as requested. This buffer is only allocated if\r | |
1503 | the call was successful.\r | |
1504 | \r | |
1505 | @retval EFI_SUCCESS The request succeeded. The requested data was\r | |
1506 | extracted and placed in the newly allocated\r | |
1507 | AltCfgResp buffer.\r | |
1508 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate AltCfgResp.\r | |
1509 | @retval EFI_INVALID_PARAMETER Any parameter is invalid.\r | |
1510 | @retval EFI_NOT_FOUND Target for the specified routing data was not\r | |
1511 | found.\r | |
1512 | \r | |
1513 | **/\r | |
1514 | EFI_STATUS\r | |
1515 | EFIAPI\r | |
1516 | HiiGetAltCfg (\r | |
1517 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
1518 | IN CONST EFI_STRING Configuration,\r | |
1519 | IN CONST EFI_GUID *Guid,\r | |
1520 | IN CONST EFI_STRING Name,\r | |
1521 | IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
1522 | IN CONST UINT16 *AltCfgId,\r | |
1523 | OUT EFI_STRING *AltCfgResp\r | |
1524 | )\r | |
1525 | {\r | |
93e3992d | 1526 | EFI_STATUS Status;\r |
1527 | EFI_STRING StringPtr;\r | |
e90b081a | 1528 | EFI_STRING HdrStart;\r |
1529 | EFI_STRING HdrEnd;\r | |
93e3992d | 1530 | EFI_STRING TmpPtr;\r |
1531 | UINTN Length;\r | |
e90b081a | 1532 | EFI_STRING GuidStr;\r |
1533 | EFI_STRING NameStr;\r | |
1534 | EFI_STRING PathStr;\r | |
1535 | EFI_STRING AltIdStr;\r | |
1536 | EFI_STRING Result;\r | |
1537 | BOOLEAN GuidFlag;\r | |
1538 | BOOLEAN NameFlag;\r | |
1539 | BOOLEAN PathFlag;\r | |
1540 | \r | |
e94358a3 | 1541 | //\r |
1542 | // For size reduction, please define PcdSupportFullConfigRoutingProtocol \r | |
1543 | // as FALSE. But this renders the system to not 100% compliant with\r | |
1544 | // UEFI 2.1. Use this with caution.\r | |
1545 | //\r | |
1546 | if (!FeaturePcdGet (PcdSupportFullConfigRoutingProtocol)) {\r | |
1547 | return EFI_UNSUPPORTED;\r | |
1548 | }\r | |
1549 | \r | |
e90b081a | 1550 | HdrStart = NULL;\r |
1551 | HdrEnd = NULL;\r | |
1552 | GuidStr = NULL;\r | |
1553 | NameStr = NULL;\r | |
1554 | PathStr = NULL;\r | |
1555 | AltIdStr = NULL;\r | |
1556 | Result = NULL;\r | |
1557 | GuidFlag = FALSE;\r | |
1558 | NameFlag = FALSE;\r | |
1559 | PathFlag = FALSE;\r | |
93e3992d | 1560 | \r |
1561 | if (This == NULL || Configuration == NULL || AltCfgResp == NULL) {\r | |
1562 | return EFI_INVALID_PARAMETER;\r | |
1563 | }\r | |
1564 | \r | |
1565 | StringPtr = Configuration;\r | |
1566 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1567 | return EFI_INVALID_PARAMETER;\r | |
1568 | }\r | |
1569 | \r | |
1570 | //\r | |
1571 | // Generate the sub string for later matching.\r | |
1572 | //\r | |
813acf3a | 1573 | GenerateSubStr (L"GUID=", sizeof (EFI_GUID), (VOID *) Guid, 1, &GuidStr);\r |
93e3992d | 1574 | GenerateSubStr (\r |
1575 | L"PATH=",\r | |
1576 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) DevicePath),\r | |
813acf3a | 1577 | (VOID *) DevicePath,\r |
1578 | 1,\r | |
93e3992d | 1579 | &PathStr\r |
1580 | );\r | |
1581 | if (AltCfgId != NULL) {\r | |
813acf3a | 1582 | GenerateSubStr (L"ALTCFG=", sizeof (UINT16), (VOID *) AltCfgId, 3, &AltIdStr); \r |
93e3992d | 1583 | }\r |
1584 | if (Name != NULL) {\r | |
813acf3a | 1585 | GenerateSubStr (L"NAME=", StrLen (Name) * sizeof (CHAR16), (VOID *) Name, 2, &NameStr); \r |
93e3992d | 1586 | } else {\r |
813acf3a | 1587 | GenerateSubStr (L"NAME=", 0, NULL, 2, &NameStr);\r |
93e3992d | 1588 | }\r |
1589 | \r | |
1590 | while (*StringPtr != 0) {\r | |
1591 | //\r | |
1592 | // Try to match the GUID\r | |
1593 | //\r | |
1594 | if (!GuidFlag) {\r | |
1595 | TmpPtr = StrStr (StringPtr, GuidStr);\r | |
1596 | if (TmpPtr == NULL) {\r | |
1597 | Status = EFI_NOT_FOUND;\r | |
1598 | goto Exit;\r | |
1599 | }\r | |
1600 | HdrStart = TmpPtr;\r | |
1601 | \r | |
1602 | //\r | |
1603 | // Jump to <NameHdr>\r | |
1604 | //\r | |
1605 | if (Guid != NULL) {\r | |
1606 | StringPtr = TmpPtr + StrLen (GuidStr);\r | |
1607 | } else {\r | |
1608 | StringPtr = StrStr (TmpPtr, L"NAME=");\r | |
1609 | if (StringPtr == NULL) {\r | |
1610 | Status = EFI_NOT_FOUND;\r | |
1611 | goto Exit;\r | |
1612 | }\r | |
1613 | }\r | |
1614 | GuidFlag = TRUE;\r | |
1615 | }\r | |
1616 | \r | |
1617 | //\r | |
1618 | // Try to match the NAME\r | |
1619 | //\r | |
1620 | if (GuidFlag && !NameFlag) {\r | |
1621 | if (StrnCmp (StringPtr, NameStr, StrLen (NameStr)) != 0) {\r | |
1622 | GuidFlag = FALSE;\r | |
1623 | } else {\r | |
1624 | //\r | |
1625 | // Jump to <PathHdr>\r | |
1626 | //\r | |
1627 | if (Name != NULL) {\r | |
1628 | StringPtr += StrLen (NameStr);\r | |
1629 | } else {\r | |
1630 | StringPtr = StrStr (StringPtr, L"PATH=");\r | |
1631 | if (StringPtr == NULL) {\r | |
1632 | Status = EFI_NOT_FOUND;\r | |
1633 | goto Exit;\r | |
1634 | }\r | |
1635 | }\r | |
1636 | NameFlag = TRUE;\r | |
1637 | }\r | |
1638 | }\r | |
1639 | \r | |
1640 | //\r | |
1641 | // Try to match the DevicePath\r | |
1642 | //\r | |
1643 | if (GuidFlag && NameFlag && !PathFlag) {\r | |
1644 | if (StrnCmp (StringPtr, PathStr, StrLen (PathStr)) != 0) {\r | |
1645 | GuidFlag = FALSE;\r | |
1646 | NameFlag = FALSE;\r | |
1647 | } else {\r | |
1648 | //\r | |
1649 | // Jump to '&' before <DescHdr> or <ConfigBody>\r | |
1650 | //\r | |
1651 | if (DevicePath != NULL) {\r | |
1652 | StringPtr += StrLen (PathStr);\r | |
1653 | } else {\r | |
1654 | StringPtr = StrStr (StringPtr, L"&");\r | |
1655 | if (StringPtr == NULL) {\r | |
1656 | Status = EFI_NOT_FOUND;\r | |
1657 | goto Exit;\r | |
1658 | }\r | |
1659 | }\r | |
1660 | PathFlag = TRUE;\r | |
1661 | HdrEnd = ++StringPtr;\r | |
1662 | }\r | |
1663 | }\r | |
1664 | \r | |
1665 | //\r | |
1666 | // Try to match the AltCfgId\r | |
1667 | //\r | |
1668 | if (GuidFlag && NameFlag && PathFlag) {\r | |
1669 | if (AltCfgId == NULL) {\r | |
1670 | //\r | |
1671 | // Return Current Setting when AltCfgId is NULL.\r | |
1672 | //\r | |
1673 | Status = OutputConfigBody (StringPtr, &Result);\r | |
1674 | goto Exit;\r | |
1675 | }\r | |
1676 | //\r | |
1677 | // Search the <ConfigAltResp> to get the <AltResp> with AltCfgId.\r | |
1678 | //\r | |
1679 | if (StrnCmp (StringPtr, AltIdStr, StrLen (AltIdStr)) != 0) {\r | |
1680 | GuidFlag = FALSE;\r | |
1681 | NameFlag = FALSE;\r | |
1682 | PathFlag = FALSE;\r | |
1683 | } else {\r | |
1684 | Status = OutputConfigBody (StringPtr, &Result);\r | |
1685 | goto Exit;\r | |
1686 | }\r | |
1687 | }\r | |
1688 | }\r | |
1689 | \r | |
1690 | Status = EFI_NOT_FOUND;\r | |
1691 | \r | |
1692 | Exit:\r | |
1693 | \r | |
1694 | if (!EFI_ERROR (Status)) {\r | |
1695 | //\r | |
1696 | // Copy the <ConfigHdr> and <ConfigBody>\r | |
1697 | //\r | |
1698 | Length = HdrEnd - HdrStart + StrLen (Result);\r | |
1699 | *AltCfgResp = AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1700 | if (*AltCfgResp == NULL) {\r | |
1701 | Status = EFI_OUT_OF_RESOURCES;\r | |
1702 | } else {\r | |
1703 | StrnCpy (*AltCfgResp, HdrStart, HdrEnd - HdrStart);\r | |
1704 | StrCat (*AltCfgResp, Result);\r | |
1705 | Status = EFI_SUCCESS;\r | |
1706 | }\r | |
1707 | }\r | |
1708 | \r | |
676df92c | 1709 | if (GuidStr != NULL) {\r |
1710 | FreePool (GuidStr);\r | |
1711 | }\r | |
1712 | if (NameStr != NULL) {\r | |
1713 | FreePool (NameStr);\r | |
1714 | }\r | |
1715 | if (PathStr != NULL) {\r | |
1716 | FreePool (PathStr);\r | |
1717 | }\r | |
1718 | if (AltIdStr != NULL) {\r | |
1719 | FreePool (AltIdStr);\r | |
1720 | }\r | |
1721 | if (Result != NULL) {\r | |
1722 | FreePool (Result);\r | |
1723 | }\r | |
93e3992d | 1724 | \r |
1725 | return Status;\r | |
1726 | \r | |
93e3992d | 1727 | }\r |
1728 | \r | |
36fe40c2 | 1729 | \r |