]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | Implementation of interfaces function for EFI_HII_CONFIG_ROUTING_PROTOCOL.\r | |
3 | \r | |
4 | Copyright (c) 2007 - 2009, Intel Corporation\r | |
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 | |
13 | **/\r | |
14 | \r | |
15 | \r | |
16 | #include "HiiDatabase.h"\r | |
17 | \r | |
18 | /**\r | |
19 | Calculate the number of Unicode characters of the incoming Configuration string,\r | |
20 | not including NULL terminator.\r | |
21 | \r | |
22 | This is a internal function.\r | |
23 | \r | |
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 | |
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 | |
63 | This is a internal function.\r | |
64 | \r | |
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 | |
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 | UINT8 *DevicePathBuffer;\r | |
84 | CHAR16 TemStr[2];\r | |
85 | UINTN Index;\r | |
86 | UINT8 DigitUint8;\r | |
87 | \r | |
88 | if (String == NULL || DevicePath == NULL) {\r | |
89 | return EFI_INVALID_PARAMETER;\r | |
90 | }\r | |
91 | \r | |
92 | //\r | |
93 | // Find the 'PATH=' of <PathHdr> and skip it.\r | |
94 | //\r | |
95 | for (; (*String != 0 && StrnCmp (String, L"PATH=", StrLen (L"PATH=")) != 0); String++);\r | |
96 | if (*String == 0) {\r | |
97 | return EFI_INVALID_PARAMETER;\r | |
98 | }\r | |
99 | \r | |
100 | String += StrLen (L"PATH=");\r | |
101 | PathHdr = String;\r | |
102 | \r | |
103 | //\r | |
104 | // The content between 'PATH=' of <ConfigHdr> and '&' of next element\r | |
105 | // or '\0' (end of configuration string) is the UNICODE %02x bytes encoding\r | |
106 | // of UEFI device path.\r | |
107 | //\r | |
108 | for (Length = 0; *String != 0 && *String != L'&'; String++, Length++);\r | |
109 | DevicePathString = (EFI_STRING) AllocateZeroPool ((Length + 1) * sizeof (CHAR16));\r | |
110 | if (DevicePathString == NULL) {\r | |
111 | return EFI_OUT_OF_RESOURCES;\r | |
112 | }\r | |
113 | StrnCpy (DevicePathString, PathHdr, Length);\r | |
114 | *(DevicePathString + Length) = 0;\r | |
115 | \r | |
116 | //\r | |
117 | // The data in <PathHdr> is encoded as hex UNICODE %02x bytes in the same order\r | |
118 | // as the device path resides in RAM memory.\r | |
119 | // Translate the data into binary.\r | |
120 | //\r | |
121 | DevicePathBuffer = (UINT8 *) AllocateZeroPool ((Length + 1) / 2);\r | |
122 | if (DevicePathBuffer == NULL) {\r | |
123 | FreePool (DevicePathString);\r | |
124 | return EFI_OUT_OF_RESOURCES;\r | |
125 | }\r | |
126 | \r | |
127 | ZeroMem (TemStr, sizeof (TemStr));\r | |
128 | for (Index = 0; DevicePathString[Index] != L'\0'; Index ++) {\r | |
129 | TemStr[0] = DevicePathString[Index];\r | |
130 | DigitUint8 = (UINT8) StrHexToUint64 (TemStr);\r | |
131 | if ((Index & 1) == 0) {\r | |
132 | DevicePathBuffer [Index/2] = DigitUint8;\r | |
133 | } else {\r | |
134 | DevicePathBuffer [Index/2] = (UINT8) ((DevicePathBuffer [Index/2] << 4) + DigitUint8);\r | |
135 | }\r | |
136 | }\r | |
137 | \r | |
138 | FreePool (DevicePathString);\r | |
139 | \r | |
140 | *DevicePath = DevicePathBuffer;\r | |
141 | \r | |
142 | return EFI_SUCCESS;\r | |
143 | \r | |
144 | }\r | |
145 | \r | |
146 | /**\r | |
147 | Converts the unicode character of the string from uppercase to lowercase.\r | |
148 | This is a internal function.\r | |
149 | \r | |
150 | @param Str String to be converted\r | |
151 | \r | |
152 | **/\r | |
153 | VOID\r | |
154 | EFIAPI\r | |
155 | HiiToLower (\r | |
156 | IN OUT CHAR16 *Str\r | |
157 | )\r | |
158 | {\r | |
159 | CHAR16 *Ptr;\r | |
160 | \r | |
161 | for (Ptr = Str; *Ptr != L'\0'; Ptr++) {\r | |
162 | if (*Ptr >= L'A' && *Ptr <= L'Z') {\r | |
163 | *Ptr = (CHAR16) (*Ptr - L'A' + L'a');\r | |
164 | }\r | |
165 | }\r | |
166 | }\r | |
167 | \r | |
168 | /**\r | |
169 | Generate a sub string then output it.\r | |
170 | \r | |
171 | This is a internal function.\r | |
172 | \r | |
173 | @param String A constant string which is the prefix of the to be\r | |
174 | generated string, e.g. GUID=\r | |
175 | @param BufferLen The length of the Buffer in bytes.\r | |
176 | @param Buffer Points to a buffer which will be converted to be the \r | |
177 | content of the generated string.\r | |
178 | @param Flag If 1, the buffer contains data for the value of GUID or PATH stored in \r | |
179 | UINT8 *; if 2, the buffer contains unicode string for the value of NAME;\r | |
180 | if 3, the buffer contains other data.\r | |
181 | @param SubStr Points to the output string. It's caller's\r | |
182 | responsibility to free this buffer.\r | |
183 | \r | |
184 | \r | |
185 | **/\r | |
186 | VOID\r | |
187 | GenerateSubStr (\r | |
188 | IN CONST EFI_STRING String,\r | |
189 | IN UINTN BufferLen,\r | |
190 | IN VOID *Buffer,\r | |
191 | IN UINT8 Flag,\r | |
192 | OUT EFI_STRING *SubStr\r | |
193 | )\r | |
194 | {\r | |
195 | UINTN Length;\r | |
196 | EFI_STRING Str;\r | |
197 | EFI_STRING StringHeader;\r | |
198 | CHAR16 *TemString;\r | |
199 | CHAR16 *TemName;\r | |
200 | UINT8 *TemBuffer;\r | |
201 | UINTN Index;\r | |
202 | \r | |
203 | ASSERT (String != NULL && SubStr != NULL);\r | |
204 | \r | |
205 | if (Buffer == NULL) {\r | |
206 | *SubStr = AllocateCopyPool (StrSize (String), String);\r | |
207 | ASSERT (*SubStr != NULL);\r | |
208 | return ;\r | |
209 | }\r | |
210 | \r | |
211 | Length = StrLen (String) + BufferLen * 2 + 1 + 1;\r | |
212 | Str = AllocateZeroPool (Length * sizeof (CHAR16));\r | |
213 | ASSERT (Str != NULL);\r | |
214 | \r | |
215 | StrCpy (Str, String);\r | |
216 | Length = (BufferLen * 2 + 1) * sizeof (CHAR16);\r | |
217 | \r | |
218 | StringHeader = Str + StrLen (String);\r | |
219 | TemString = (CHAR16 *) StringHeader;\r | |
220 | \r | |
221 | switch (Flag) {\r | |
222 | case 1:\r | |
223 | //\r | |
224 | // Convert Buffer to Hex String in reverse order\r | |
225 | //\r | |
226 | TemBuffer = ((UINT8 *) Buffer);\r | |
227 | for (Index = 0; Index < BufferLen; Index ++, TemBuffer ++) {\r | |
228 | TemString += UnicodeValueToString (TemString, PREFIX_ZERO | RADIX_HEX, *TemBuffer, 2);\r | |
229 | }\r | |
230 | break;\r | |
231 | case 2:\r | |
232 | //\r | |
233 | // Check buffer is enough\r | |
234 | //\r | |
235 | TemName = (CHAR16 *) Buffer;\r | |
236 | ASSERT (Length < ((StrLen (TemName) * 4 + 1) * sizeof (CHAR16)));\r | |
237 | //\r | |
238 | // Convert Unicode String to Config String, e.g. "ABCD" => "0041004200430044"\r | |
239 | //\r | |
240 | for (; *TemName != L'\0'; TemName++) {\r | |
241 | TemString += UnicodeValueToString (TemString, PREFIX_ZERO | RADIX_HEX, *TemName, 4);\r | |
242 | }\r | |
243 | break;\r | |
244 | case 3:\r | |
245 | //\r | |
246 | // Convert Buffer to Hex String\r | |
247 | //\r | |
248 | TemBuffer = ((UINT8 *) Buffer) + BufferLen - 1;\r | |
249 | for (Index = 0; Index < BufferLen; Index ++, TemBuffer --) {\r | |
250 | TemString += UnicodeValueToString (TemString, PREFIX_ZERO | RADIX_HEX, *TemBuffer, 2);\r | |
251 | }\r | |
252 | break;\r | |
253 | default:\r | |
254 | break;\r | |
255 | }\r | |
256 | \r | |
257 | //\r | |
258 | // Convert the uppercase to lowercase since <HexAf> is defined in lowercase format.\r | |
259 | //\r | |
260 | HiiToLower (StringHeader);\r | |
261 | StrCat (Str, L"&");\r | |
262 | \r | |
263 | *SubStr = Str;\r | |
264 | }\r | |
265 | \r | |
266 | \r | |
267 | /**\r | |
268 | Retrieve the <ConfigBody> from String then output it.\r | |
269 | \r | |
270 | This is a internal function.\r | |
271 | \r | |
272 | @param String A sub string of a configuration string in\r | |
273 | <MultiConfigAltResp> format.\r | |
274 | @param ConfigBody Points to the output string. It's caller's\r | |
275 | responsibility to free this buffer.\r | |
276 | \r | |
277 | @retval EFI_INVALID_PARAMETER There is no form package in current hii database.\r | |
278 | @retval EFI_OUT_OF_RESOURCES Not enough memory to finish this operation.\r | |
279 | @retval EFI_SUCCESS All existing storage is exported.\r | |
280 | \r | |
281 | **/\r | |
282 | EFI_STATUS\r | |
283 | OutputConfigBody (\r | |
284 | IN EFI_STRING String,\r | |
285 | OUT EFI_STRING *ConfigBody\r | |
286 | )\r | |
287 | {\r | |
288 | EFI_STRING TmpPtr;\r | |
289 | EFI_STRING Result;\r | |
290 | UINTN Length;\r | |
291 | \r | |
292 | if (String == NULL || ConfigBody == NULL) {\r | |
293 | return EFI_INVALID_PARAMETER;\r | |
294 | }\r | |
295 | \r | |
296 | TmpPtr = StrStr (String, L"GUID=");\r | |
297 | if (TmpPtr == NULL) {\r | |
298 | //\r | |
299 | // It is the last <ConfigResp> of the incoming configuration string.\r | |
300 | //\r | |
301 | Result = AllocateCopyPool (StrSize (String), String);\r | |
302 | if (Result == NULL) {\r | |
303 | return EFI_OUT_OF_RESOURCES;\r | |
304 | } else {\r | |
305 | *ConfigBody = Result;\r | |
306 | return EFI_SUCCESS;\r | |
307 | }\r | |
308 | }\r | |
309 | \r | |
310 | Length = TmpPtr - String;\r | |
311 | Result = AllocateCopyPool (Length * sizeof (CHAR16), String);\r | |
312 | if (Result == NULL) {\r | |
313 | return EFI_OUT_OF_RESOURCES;\r | |
314 | }\r | |
315 | \r | |
316 | *(Result + Length - 1) = 0;\r | |
317 | *ConfigBody = Result;\r | |
318 | return EFI_SUCCESS;\r | |
319 | \r | |
320 | }\r | |
321 | \r | |
322 | /**\r | |
323 | Append a string to a multi-string format.\r | |
324 | \r | |
325 | This is a internal function.\r | |
326 | \r | |
327 | @param MultiString String in <MultiConfigRequest>,\r | |
328 | <MultiConfigAltResp>, or <MultiConfigResp>. On\r | |
329 | input, the buffer length of this string is\r | |
330 | MAX_STRING_LENGTH. On output, the buffer length\r | |
331 | might be updated.\r | |
332 | @param AppendString NULL-terminated Unicode string.\r | |
333 | \r | |
334 | @retval EFI_INVALID_PARAMETER Any incoming parameter is invalid.\r | |
335 | @retval EFI_SUCCESS AppendString is append to the end of MultiString\r | |
336 | \r | |
337 | **/\r | |
338 | EFI_STATUS\r | |
339 | AppendToMultiString (\r | |
340 | IN OUT EFI_STRING *MultiString,\r | |
341 | IN EFI_STRING AppendString\r | |
342 | )\r | |
343 | {\r | |
344 | UINTN AppendStringSize;\r | |
345 | UINTN MultiStringSize;\r | |
346 | \r | |
347 | if (MultiString == NULL || *MultiString == NULL || AppendString == NULL) {\r | |
348 | return EFI_INVALID_PARAMETER;\r | |
349 | }\r | |
350 | \r | |
351 | AppendStringSize = StrSize (AppendString);\r | |
352 | MultiStringSize = StrSize (*MultiString);\r | |
353 | \r | |
354 | //\r | |
355 | // Enlarge the buffer each time when length exceeds MAX_STRING_LENGTH.\r | |
356 | //\r | |
357 | if (MultiStringSize + AppendStringSize > MAX_STRING_LENGTH ||\r | |
358 | MultiStringSize > MAX_STRING_LENGTH) {\r | |
359 | *MultiString = (EFI_STRING) ReallocatePool (\r | |
360 | MultiStringSize,\r | |
361 | MultiStringSize + AppendStringSize,\r | |
362 | (VOID *) (*MultiString)\r | |
363 | );\r | |
364 | ASSERT (*MultiString != NULL);\r | |
365 | }\r | |
366 | //\r | |
367 | // Append the incoming string\r | |
368 | //\r | |
369 | StrCat (*MultiString, AppendString);\r | |
370 | \r | |
371 | return EFI_SUCCESS;\r | |
372 | }\r | |
373 | \r | |
374 | \r | |
375 | /**\r | |
376 | Get the value of <Number> in <BlockConfig> format, i.e. the value of OFFSET\r | |
377 | or WIDTH or VALUE.\r | |
378 | <BlockConfig> ::= 'OFFSET='<Number>&'WIDTH='<Number>&'VALUE'=<Number>\r | |
379 | \r | |
380 | This is a internal function.\r | |
381 | \r | |
382 | @param StringPtr String in <BlockConfig> format and points to the\r | |
383 | first character of <Number>.\r | |
384 | @param Number The output value. Caller takes the responsibility\r | |
385 | to free memory.\r | |
386 | @param Len Length of the <Number>, in characters.\r | |
387 | \r | |
388 | @retval EFI_OUT_OF_RESOURCES Insufficient resources to store neccessary\r | |
389 | structures.\r | |
390 | @retval EFI_SUCCESS Value of <Number> is outputted in Number\r | |
391 | successfully.\r | |
392 | \r | |
393 | **/\r | |
394 | EFI_STATUS\r | |
395 | GetValueOfNumber (\r | |
396 | IN EFI_STRING StringPtr,\r | |
397 | OUT UINT8 **Number,\r | |
398 | OUT UINTN *Len\r | |
399 | )\r | |
400 | {\r | |
401 | EFI_STRING TmpPtr;\r | |
402 | UINTN Length;\r | |
403 | EFI_STRING Str;\r | |
404 | UINT8 *Buf;\r | |
405 | EFI_STATUS Status;\r | |
406 | UINT8 DigitUint8;\r | |
407 | UINTN Index;\r | |
408 | CHAR16 TemStr[2];\r | |
409 | \r | |
410 | ASSERT (StringPtr != NULL && Number != NULL && Len != NULL);\r | |
411 | ASSERT (*StringPtr != L'\0');\r | |
412 | \r | |
413 | Buf = NULL;\r | |
414 | \r | |
415 | TmpPtr = StringPtr;\r | |
416 | while (*StringPtr != L'\0' && *StringPtr != L'&') {\r | |
417 | StringPtr++;\r | |
418 | }\r | |
419 | *Len = StringPtr - TmpPtr;\r | |
420 | Length = *Len + 1;\r | |
421 | \r | |
422 | Str = (EFI_STRING) AllocateZeroPool (Length * sizeof (EFI_STRING));\r | |
423 | if (Str == NULL) {\r | |
424 | Status = EFI_OUT_OF_RESOURCES;\r | |
425 | goto Exit;\r | |
426 | }\r | |
427 | CopyMem (Str, TmpPtr, *Len * sizeof (CHAR16));\r | |
428 | *(Str + *Len) = L'\0';\r | |
429 | \r | |
430 | Length = (Length + 1) / 2;\r | |
431 | Buf = (UINT8 *) AllocateZeroPool (Length);\r | |
432 | if (Buf == NULL) {\r | |
433 | Status = EFI_OUT_OF_RESOURCES;\r | |
434 | goto Exit;\r | |
435 | }\r | |
436 | \r | |
437 | Length = *Len;\r | |
438 | ZeroMem (TemStr, sizeof (TemStr));\r | |
439 | for (Index = 0; Index < Length; Index ++) {\r | |
440 | TemStr[0] = Str[Length - Index - 1];\r | |
441 | DigitUint8 = (UINT8) StrHexToUint64 (TemStr);\r | |
442 | if ((Index & 1) == 0) {\r | |
443 | Buf [Index/2] = DigitUint8;\r | |
444 | } else {\r | |
445 | Buf [Index/2] = (UINT8) ((DigitUint8 << 4) + Buf [Index/2]);\r | |
446 | }\r | |
447 | }\r | |
448 | \r | |
449 | *Number = Buf;\r | |
450 | Status = EFI_SUCCESS;\r | |
451 | \r | |
452 | Exit:\r | |
453 | if (Str != NULL) {\r | |
454 | FreePool (Str);\r | |
455 | }\r | |
456 | \r | |
457 | return Status;\r | |
458 | }\r | |
459 | \r | |
460 | \r | |
461 | /**\r | |
462 | This function allows a caller to extract the current configuration\r | |
463 | for one or more named elements from one or more drivers.\r | |
464 | \r | |
465 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
466 | instance.\r | |
467 | @param Request A null-terminated Unicode string in\r | |
468 | <MultiConfigRequest> format.\r | |
469 | @param Progress On return, points to a character in the Request\r | |
470 | string. Points to the string's null terminator if\r | |
471 | request was successful. Points to the most recent\r | |
472 | & before the first failing name / value pair (or\r | |
473 | the beginning of the string if the failure is in\r | |
474 | the first name / value pair) if the request was\r | |
475 | not successful.\r | |
476 | @param Results Null-terminated Unicode string in\r | |
477 | <MultiConfigAltResp> format which has all values\r | |
478 | filled in for the names in the Request string.\r | |
479 | String to be allocated by the called function.\r | |
480 | \r | |
481 | @retval EFI_SUCCESS The Results string is filled with the values\r | |
482 | corresponding to all requested names.\r | |
483 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
484 | results that must be stored awaiting possible\r | |
485 | future protocols.\r | |
486 | @retval EFI_NOT_FOUND Routing data doesn't match any known driver.\r | |
487 | Progress set to the "G" in "GUID" of the routing\r | |
488 | header that doesn't match. Note: There is no\r | |
489 | requirement that all routing data be validated\r | |
490 | before any configuration extraction.\r | |
491 | @retval EFI_INVALID_PARAMETER For example, passing in a NULL for the Request\r | |
492 | parameter would result in this type of error. The\r | |
493 | Progress parameter is set to NULL.\r | |
494 | @retval EFI_INVALID_PARAMETER Illegal syntax. Progress set to most recent &\r | |
495 | before the error or the beginning of the string.\r | |
496 | @retval EFI_INVALID_PARAMETER Unknown name. Progress points to the & before the\r | |
497 | name in question.\r | |
498 | \r | |
499 | **/\r | |
500 | EFI_STATUS\r | |
501 | EFIAPI\r | |
502 | HiiConfigRoutingExtractConfig (\r | |
503 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
504 | IN CONST EFI_STRING Request,\r | |
505 | OUT EFI_STRING *Progress,\r | |
506 | OUT EFI_STRING *Results\r | |
507 | )\r | |
508 | {\r | |
509 | EFI_STRING StringPtr;\r | |
510 | EFI_STRING ConfigRequest;\r | |
511 | UINTN Length;\r | |
512 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
513 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
514 | EFI_STATUS Status;\r | |
515 | EFI_HANDLE DriverHandle;\r | |
516 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
517 | EFI_STRING AccessProgress;\r | |
518 | EFI_STRING AccessResults;\r | |
519 | BOOLEAN FirstElement;\r | |
520 | \r | |
521 | if (This == NULL || Progress == NULL || Results == NULL) {\r | |
522 | return EFI_INVALID_PARAMETER;\r | |
523 | }\r | |
524 | \r | |
525 | if (Request == NULL) {\r | |
526 | *Progress = NULL;\r | |
527 | return EFI_INVALID_PARAMETER;\r | |
528 | }\r | |
529 | \r | |
530 | StringPtr = Request;\r | |
531 | *Progress = StringPtr;\r | |
532 | \r | |
533 | //\r | |
534 | // The first element of <MultiConfigRequest> should be\r | |
535 | // <GuidHdr>, which is in 'GUID='<Guid> syntax.\r | |
536 | //\r | |
537 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
538 | return EFI_INVALID_PARAMETER;\r | |
539 | }\r | |
540 | \r | |
541 | FirstElement = TRUE;\r | |
542 | \r | |
543 | //\r | |
544 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
545 | // Results if this fix length is insufficient.\r | |
546 | //\r | |
547 | *Results = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
548 | if (*Results == NULL) {\r | |
549 | return EFI_OUT_OF_RESOURCES;\r | |
550 | }\r | |
551 | \r | |
552 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) == 0) {\r | |
553 | //\r | |
554 | // If parsing error, set Progress to the beginning of the <MultiConfigRequest>\r | |
555 | // or most recent & before the error.\r | |
556 | //\r | |
557 | if (StringPtr == Request) {\r | |
558 | *Progress = StringPtr;\r | |
559 | } else {\r | |
560 | *Progress = StringPtr - 1;\r | |
561 | }\r | |
562 | \r | |
563 | //\r | |
564 | // Process each <ConfigRequest> of <MultiConfigRequest>\r | |
565 | //\r | |
566 | Length = CalculateConfigStringLen (StringPtr);\r | |
567 | ConfigRequest = AllocateCopyPool ((Length + 1) * sizeof (CHAR16), StringPtr);\r | |
568 | if (ConfigRequest == NULL) {\r | |
569 | return EFI_OUT_OF_RESOURCES;\r | |
570 | }\r | |
571 | *(ConfigRequest + Length) = 0;\r | |
572 | \r | |
573 | //\r | |
574 | // Get the UEFI device path\r | |
575 | //\r | |
576 | Status = GetDevicePath (ConfigRequest, (UINT8 **) &DevicePath);\r | |
577 | if (EFI_ERROR (Status)) {\r | |
578 | FreePool (ConfigRequest);\r | |
579 | return Status;\r | |
580 | }\r | |
581 | \r | |
582 | //\r | |
583 | // Find driver handle by device path\r | |
584 | //\r | |
585 | DriverHandle = NULL;\r | |
586 | TempDevicePath = DevicePath;\r | |
587 | Status = gBS->LocateDevicePath (\r | |
588 | &gEfiDevicePathProtocolGuid,\r | |
589 | &TempDevicePath,\r | |
590 | &DriverHandle\r | |
591 | );\r | |
592 | FreePool (DevicePath);\r | |
593 | \r | |
594 | if (EFI_ERROR (Status) || (DriverHandle == NULL)) {\r | |
595 | //\r | |
596 | // Cannot find any known driver.\r | |
597 | // Set Progress to the 'G' in "GUID" of the routing header.\r | |
598 | //\r | |
599 | *Progress = StringPtr;\r | |
600 | FreePool (ConfigRequest);\r | |
601 | return EFI_NOT_FOUND;\r | |
602 | }\r | |
603 | \r | |
604 | //\r | |
605 | // Call corresponding ConfigAccess protocol to extract settings\r | |
606 | //\r | |
607 | Status = gBS->HandleProtocol (\r | |
608 | DriverHandle,\r | |
609 | &gEfiHiiConfigAccessProtocolGuid,\r | |
610 | (VOID **) &ConfigAccess\r | |
611 | );\r | |
612 | ASSERT_EFI_ERROR (Status);\r | |
613 | \r | |
614 | Status = ConfigAccess->ExtractConfig (\r | |
615 | ConfigAccess,\r | |
616 | ConfigRequest,\r | |
617 | &AccessProgress,\r | |
618 | &AccessResults\r | |
619 | );\r | |
620 | if (EFI_ERROR (Status)) {\r | |
621 | //\r | |
622 | // AccessProgress indicates the parsing progress on <ConfigRequest>.\r | |
623 | // Map it to the progress on <MultiConfigRequest> then return it.\r | |
624 | //\r | |
625 | *Progress = StrStr (StringPtr, AccessProgress);\r | |
626 | FreePool (ConfigRequest);\r | |
627 | return Status;\r | |
628 | }\r | |
629 | \r | |
630 | //\r | |
631 | // Attach this <ConfigAltResp> to a <MultiConfigAltResp>. There is a '&'\r | |
632 | // which seperates the first <ConfigAltResp> and the following ones.\r | |
633 | //\r | |
634 | ASSERT (*AccessProgress == 0);\r | |
635 | \r | |
636 | if (!FirstElement) {\r | |
637 | Status = AppendToMultiString (Results, L"&");\r | |
638 | ASSERT_EFI_ERROR (Status);\r | |
639 | }\r | |
640 | \r | |
641 | Status = AppendToMultiString (Results, AccessResults);\r | |
642 | ASSERT_EFI_ERROR (Status);\r | |
643 | \r | |
644 | FirstElement = FALSE;\r | |
645 | \r | |
646 | FreePool (AccessResults);\r | |
647 | AccessResults = NULL;\r | |
648 | FreePool (ConfigRequest);\r | |
649 | ConfigRequest = NULL;\r | |
650 | \r | |
651 | //\r | |
652 | // Go to next <ConfigRequest> (skip '&').\r | |
653 | //\r | |
654 | StringPtr += Length;\r | |
655 | if (*StringPtr == 0) {\r | |
656 | *Progress = StringPtr;\r | |
657 | break;\r | |
658 | }\r | |
659 | \r | |
660 | StringPtr++;\r | |
661 | \r | |
662 | }\r | |
663 | \r | |
664 | return EFI_SUCCESS;\r | |
665 | \r | |
666 | }\r | |
667 | \r | |
668 | \r | |
669 | /**\r | |
670 | This function allows the caller to request the current configuration for the\r | |
671 | entirety of the current HII database and returns the data in a\r | |
672 | null-terminated Unicode string.\r | |
673 | \r | |
674 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
675 | instance.\r | |
676 | @param Results Null-terminated Unicode string in\r | |
677 | <MultiConfigAltResp> format which has all values\r | |
678 | filled in for the names in the Request string.\r | |
679 | String to be allocated by the called function.\r | |
680 | De-allocation is up to the caller.\r | |
681 | \r | |
682 | @retval EFI_SUCCESS The Results string is filled with the values\r | |
683 | corresponding to all requested names.\r | |
684 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
685 | results that must be stored awaiting possible\r | |
686 | future protocols.\r | |
687 | @retval EFI_INVALID_PARAMETER For example, passing in a NULL for the Results\r | |
688 | parameter would result in this type of error.\r | |
689 | \r | |
690 | **/\r | |
691 | EFI_STATUS\r | |
692 | EFIAPI\r | |
693 | HiiConfigRoutingExportConfig (\r | |
694 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
695 | OUT EFI_STRING *Results\r | |
696 | )\r | |
697 | {\r | |
698 | EFI_STATUS Status;\r | |
699 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
700 | EFI_STRING AccessResults; \r | |
701 | UINTN Index;\r | |
702 | EFI_HANDLE *ConfigAccessHandles;\r | |
703 | UINTN NumberConfigAccessHandles;\r | |
704 | BOOLEAN FirstElement;\r | |
705 | \r | |
706 | if (This == NULL || Results == NULL) {\r | |
707 | return EFI_INVALID_PARAMETER;\r | |
708 | }\r | |
709 | \r | |
710 | //\r | |
711 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
712 | // Results if this fix length is insufficient.\r | |
713 | //\r | |
714 | *Results = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
715 | if (*Results == NULL) {\r | |
716 | return EFI_OUT_OF_RESOURCES;\r | |
717 | }\r | |
718 | \r | |
719 | NumberConfigAccessHandles = 0;\r | |
720 | Status = gBS->LocateHandleBuffer (\r | |
721 | ByProtocol,\r | |
722 | &gEfiHiiConfigAccessProtocolGuid,\r | |
723 | NULL,\r | |
724 | &NumberConfigAccessHandles,\r | |
725 | &ConfigAccessHandles\r | |
726 | );\r | |
727 | if (EFI_ERROR (Status)) {\r | |
728 | return Status;\r | |
729 | }\r | |
730 | \r | |
731 | FirstElement = TRUE;\r | |
732 | \r | |
733 | for (Index = 0; Index < NumberConfigAccessHandles; Index++) {\r | |
734 | Status = gBS->HandleProtocol (\r | |
735 | ConfigAccessHandles[Index],\r | |
736 | &gEfiHiiConfigAccessProtocolGuid,\r | |
737 | (VOID **) &ConfigAccess\r | |
738 | );\r | |
739 | if (EFI_ERROR (Status)) {\r | |
740 | continue;\r | |
741 | }\r | |
742 | \r | |
743 | Status = ConfigAccess->ExtractConfig (\r | |
744 | ConfigAccess,\r | |
745 | NULL,\r | |
746 | NULL,\r | |
747 | &AccessResults\r | |
748 | );\r | |
749 | if (!EFI_ERROR (Status)) {\r | |
750 | //\r | |
751 | // Attach this <ConfigAltResp> to a <MultiConfigAltResp>. There is a '&'\r | |
752 | // which seperates the first <ConfigAltResp> and the following ones. \r | |
753 | //\r | |
754 | if (!FirstElement) {\r | |
755 | Status = AppendToMultiString (Results, L"&");\r | |
756 | ASSERT_EFI_ERROR (Status);\r | |
757 | }\r | |
758 | \r | |
759 | Status = AppendToMultiString (Results, AccessResults);\r | |
760 | ASSERT_EFI_ERROR (Status);\r | |
761 | \r | |
762 | FirstElement = FALSE;\r | |
763 | \r | |
764 | FreePool (AccessResults);\r | |
765 | AccessResults = NULL;\r | |
766 | }\r | |
767 | }\r | |
768 | FreePool (ConfigAccessHandles);\r | |
769 | \r | |
770 | return EFI_SUCCESS; \r | |
771 | }\r | |
772 | \r | |
773 | \r | |
774 | /**\r | |
775 | This function processes the results of processing forms and routes it to the\r | |
776 | appropriate handlers or storage.\r | |
777 | \r | |
778 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
779 | instance.\r | |
780 | @param Configuration A null-terminated Unicode string in\r | |
781 | <MulltiConfigResp> format.\r | |
782 | @param Progress A pointer to a string filled in with the offset of\r | |
783 | the most recent & before the first failing name /\r | |
784 | value pair (or the beginning of the string if the\r | |
785 | failure is in the first name / value pair) or the\r | |
786 | terminating NULL if all was successful.\r | |
787 | \r | |
788 | @retval EFI_SUCCESS The results have been distributed or are awaiting\r | |
789 | distribution.\r | |
790 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the parts of the\r | |
791 | results that must be stored awaiting possible\r | |
792 | future protocols.\r | |
793 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the Configuration parameter\r | |
794 | would result in this type of error.\r | |
795 | @retval EFI_NOT_FOUND Target for the specified routing data was not\r | |
796 | found.\r | |
797 | \r | |
798 | **/\r | |
799 | EFI_STATUS\r | |
800 | EFIAPI\r | |
801 | HiiConfigRoutingRouteConfig (\r | |
802 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
803 | IN CONST EFI_STRING Configuration,\r | |
804 | OUT EFI_STRING *Progress\r | |
805 | )\r | |
806 | {\r | |
807 | EFI_STRING StringPtr;\r | |
808 | EFI_STRING ConfigResp;\r | |
809 | UINTN Length;\r | |
810 | EFI_STATUS Status;\r | |
811 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
812 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
813 | EFI_HANDLE DriverHandle;\r | |
814 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
815 | EFI_STRING AccessProgress;\r | |
816 | \r | |
817 | if (This == NULL || Progress == NULL) {\r | |
818 | return EFI_INVALID_PARAMETER;\r | |
819 | }\r | |
820 | \r | |
821 | if (Configuration == NULL) {\r | |
822 | *Progress = NULL;\r | |
823 | return EFI_INVALID_PARAMETER;\r | |
824 | }\r | |
825 | \r | |
826 | StringPtr = Configuration;\r | |
827 | *Progress = StringPtr;\r | |
828 | \r | |
829 | //\r | |
830 | // The first element of <MultiConfigResp> should be\r | |
831 | // <GuidHdr>, which is in 'GUID='<Guid> syntax.\r | |
832 | //\r | |
833 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
834 | return EFI_INVALID_PARAMETER;\r | |
835 | }\r | |
836 | \r | |
837 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) == 0) {\r | |
838 | //\r | |
839 | // If parsing error, set Progress to the beginning of the <MultiConfigResp>\r | |
840 | // or most recent & before the error.\r | |
841 | //\r | |
842 | if (StringPtr == Configuration) {\r | |
843 | *Progress = StringPtr;\r | |
844 | } else {\r | |
845 | *Progress = StringPtr - 1;\r | |
846 | }\r | |
847 | \r | |
848 | //\r | |
849 | // Process each <ConfigResp> of <MultiConfigResp>\r | |
850 | //\r | |
851 | Length = CalculateConfigStringLen (StringPtr);\r | |
852 | ConfigResp = AllocateCopyPool ((Length + 1) * sizeof (CHAR16), StringPtr);\r | |
853 | if (ConfigResp == NULL) {\r | |
854 | return EFI_OUT_OF_RESOURCES;\r | |
855 | }\r | |
856 | //\r | |
857 | // Append '\0' to the end of ConfigRequest\r | |
858 | //\r | |
859 | *(ConfigResp + Length) = 0;\r | |
860 | \r | |
861 | //\r | |
862 | // Get the UEFI device path\r | |
863 | //\r | |
864 | Status = GetDevicePath (ConfigResp, (UINT8 **) &DevicePath);\r | |
865 | if (EFI_ERROR (Status)) {\r | |
866 | FreePool (ConfigResp);\r | |
867 | return Status;\r | |
868 | }\r | |
869 | \r | |
870 | //\r | |
871 | // Find driver handle by device path\r | |
872 | //\r | |
873 | DriverHandle = NULL;\r | |
874 | TempDevicePath = DevicePath;\r | |
875 | Status = gBS->LocateDevicePath (\r | |
876 | &gEfiDevicePathProtocolGuid,\r | |
877 | &TempDevicePath,\r | |
878 | &DriverHandle\r | |
879 | );\r | |
880 | FreePool (DevicePath);\r | |
881 | \r | |
882 | if (EFI_ERROR (Status) || (DriverHandle == NULL)) {\r | |
883 | //\r | |
884 | // Cannot find any known driver.\r | |
885 | // Set Progress to the 'G' in "GUID" of the routing header.\r | |
886 | //\r | |
887 | *Progress = StringPtr;\r | |
888 | FreePool (ConfigResp);\r | |
889 | return EFI_NOT_FOUND;\r | |
890 | }\r | |
891 | \r | |
892 | //\r | |
893 | // Call corresponding ConfigAccess protocol to route settings\r | |
894 | //\r | |
895 | Status = gBS->HandleProtocol (\r | |
896 | DriverHandle,\r | |
897 | &gEfiHiiConfigAccessProtocolGuid,\r | |
898 | (VOID **) &ConfigAccess\r | |
899 | );\r | |
900 | ASSERT_EFI_ERROR (Status);\r | |
901 | \r | |
902 | Status = ConfigAccess->RouteConfig (\r | |
903 | ConfigAccess,\r | |
904 | ConfigResp,\r | |
905 | &AccessProgress\r | |
906 | );\r | |
907 | \r | |
908 | if (EFI_ERROR (Status)) {\r | |
909 | //\r | |
910 | // AccessProgress indicates the parsing progress on <ConfigResp>.\r | |
911 | // Map it to the progress on <MultiConfigResp> then return it.\r | |
912 | //\r | |
913 | *Progress = StrStr (StringPtr, AccessProgress);\r | |
914 | \r | |
915 | FreePool (ConfigResp);\r | |
916 | return Status;\r | |
917 | }\r | |
918 | \r | |
919 | FreePool (ConfigResp);\r | |
920 | ConfigResp = NULL;\r | |
921 | \r | |
922 | //\r | |
923 | // Go to next <ConfigResp> (skip '&').\r | |
924 | //\r | |
925 | StringPtr += Length;\r | |
926 | if (*StringPtr == 0) {\r | |
927 | *Progress = StringPtr;\r | |
928 | break;\r | |
929 | }\r | |
930 | \r | |
931 | StringPtr++;\r | |
932 | \r | |
933 | }\r | |
934 | \r | |
935 | return EFI_SUCCESS;\r | |
936 | }\r | |
937 | \r | |
938 | \r | |
939 | /**\r | |
940 | This helper function is to be called by drivers to map configuration data\r | |
941 | stored in byte array ("block") formats such as UEFI Variables into current\r | |
942 | configuration strings.\r | |
943 | \r | |
944 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
945 | instance.\r | |
946 | @param ConfigRequest A null-terminated Unicode string in\r | |
947 | <ConfigRequest> format.\r | |
948 | @param Block Array of bytes defining the block's configuration.\r | |
949 | @param BlockSize Length in bytes of Block.\r | |
950 | @param Config Filled-in configuration string. String allocated\r | |
951 | by the function. Returned only if call is\r | |
952 | successful.\r | |
953 | @param Progress A pointer to a string filled in with the offset of\r | |
954 | the most recent & before the first failing\r | |
955 | name/value pair (or the beginning of the string if\r | |
956 | the failure is in the first name / value pair) or\r | |
957 | the terminating NULL if all was successful.\r | |
958 | \r | |
959 | @retval EFI_SUCCESS The request succeeded. Progress points to the null\r | |
960 | terminator at the end of the ConfigRequest\r | |
961 | string.\r | |
962 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate Config. Progress\r | |
963 | points to the first character of ConfigRequest.\r | |
964 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the ConfigRequest or\r | |
965 | Block parameter would result in this type of\r | |
966 | error. Progress points to the first character of\r | |
967 | ConfigRequest.\r | |
968 | @retval EFI_DEVICE_ERROR Block not large enough. Progress undefined.\r | |
969 | @retval EFI_INVALID_PARAMETER Encountered non <BlockName> formatted string.\r | |
970 | Block is left updated and Progress points at\r | |
971 | the "&" preceding the first non-<BlockName>.\r | |
972 | \r | |
973 | **/\r | |
974 | EFI_STATUS\r | |
975 | EFIAPI\r | |
976 | HiiBlockToConfig (\r | |
977 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
978 | IN CONST EFI_STRING ConfigRequest,\r | |
979 | IN CONST UINT8 *Block,\r | |
980 | IN CONST UINTN BlockSize,\r | |
981 | OUT EFI_STRING *Config,\r | |
982 | OUT EFI_STRING *Progress\r | |
983 | )\r | |
984 | {\r | |
985 | EFI_STRING StringPtr;\r | |
986 | UINTN Length;\r | |
987 | EFI_STATUS Status;\r | |
988 | EFI_STRING TmpPtr;\r | |
989 | UINT8 *TmpBuffer;\r | |
990 | UINTN Offset;\r | |
991 | UINTN Width;\r | |
992 | UINT8 *Value;\r | |
993 | EFI_STRING ValueStr;\r | |
994 | EFI_STRING ConfigElement;\r | |
995 | UINTN Index;\r | |
996 | UINT8 *TemBuffer;\r | |
997 | CHAR16 *TemString;\r | |
998 | \r | |
999 | if (This == NULL || Progress == NULL || Config == NULL) {\r | |
1000 | return EFI_INVALID_PARAMETER;\r | |
1001 | }\r | |
1002 | \r | |
1003 | if (Block == NULL || ConfigRequest == NULL) {\r | |
1004 | *Progress = ConfigRequest;\r | |
1005 | return EFI_INVALID_PARAMETER;\r | |
1006 | }\r | |
1007 | \r | |
1008 | StringPtr = ConfigRequest;\r | |
1009 | ValueStr = NULL;\r | |
1010 | Value = NULL;\r | |
1011 | ConfigElement = NULL;\r | |
1012 | \r | |
1013 | //\r | |
1014 | // Allocate a fix length of memory to store Results. Reallocate memory for\r | |
1015 | // Results if this fix length is insufficient.\r | |
1016 | //\r | |
1017 | *Config = (EFI_STRING) AllocateZeroPool (MAX_STRING_LENGTH);\r | |
1018 | if (*Config == NULL) {\r | |
1019 | return EFI_OUT_OF_RESOURCES;\r | |
1020 | }\r | |
1021 | \r | |
1022 | //\r | |
1023 | // Jump <ConfigHdr>\r | |
1024 | //\r | |
1025 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1026 | *Progress = StringPtr;\r | |
1027 | Status = EFI_INVALID_PARAMETER;\r | |
1028 | goto Exit;\r | |
1029 | }\r | |
1030 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"PATH=", StrLen (L"PATH=")) != 0) {\r | |
1031 | StringPtr++;\r | |
1032 | }\r | |
1033 | if (*StringPtr == 0) {\r | |
1034 | *Progress = StringPtr;\r | |
1035 | Status = EFI_INVALID_PARAMETER;\r | |
1036 | goto Exit;\r | |
1037 | }\r | |
1038 | \r | |
1039 | while (*StringPtr != L'&' && *StringPtr != 0) {\r | |
1040 | StringPtr++;\r | |
1041 | }\r | |
1042 | if (*StringPtr == 0) {\r | |
1043 | *Progress = StringPtr;\r | |
1044 | Status = EFI_INVALID_PARAMETER;\r | |
1045 | goto Exit;\r | |
1046 | }\r | |
1047 | //\r | |
1048 | // Skip '&'\r | |
1049 | //\r | |
1050 | StringPtr++;\r | |
1051 | \r | |
1052 | //\r | |
1053 | // Copy <ConfigHdr> and an additional '&' to <ConfigResp>\r | |
1054 | //\r | |
1055 | Length = StringPtr - ConfigRequest;\r | |
1056 | CopyMem (*Config, ConfigRequest, Length * sizeof (CHAR16));\r | |
1057 | \r | |
1058 | //\r | |
1059 | // Parse each <RequestElement> if exists\r | |
1060 | // Only <BlockName> format is supported by this help function.\r | |
1061 | // <BlockName> ::= 'OFFSET='<Number>&'WIDTH='<Number>\r | |
1062 | //\r | |
1063 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"OFFSET=", StrLen (L"OFFSET=")) == 0) {\r | |
1064 | //\r | |
1065 | // Back up the header of one <BlockName>\r | |
1066 | //\r | |
1067 | TmpPtr = StringPtr;\r | |
1068 | \r | |
1069 | StringPtr += StrLen (L"OFFSET=");\r | |
1070 | //\r | |
1071 | // Get Offset\r | |
1072 | //\r | |
1073 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1074 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1075 | *Progress = ConfigRequest;\r | |
1076 | goto Exit;\r | |
1077 | }\r | |
1078 | Offset = 0;\r | |
1079 | CopyMem (\r | |
1080 | &Offset,\r | |
1081 | TmpBuffer,\r | |
1082 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1083 | );\r | |
1084 | FreePool (TmpBuffer);\r | |
1085 | \r | |
1086 | StringPtr += Length;\r | |
1087 | if (StrnCmp (StringPtr, L"&WIDTH=", StrLen (L"&WIDTH=")) != 0) {\r | |
1088 | *Progress = StringPtr - Length - StrLen (L"OFFSET=") - 1;\r | |
1089 | Status = EFI_INVALID_PARAMETER;\r | |
1090 | goto Exit;\r | |
1091 | }\r | |
1092 | StringPtr += StrLen (L"&WIDTH=");\r | |
1093 | \r | |
1094 | //\r | |
1095 | // Get Width\r | |
1096 | //\r | |
1097 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1098 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1099 | *Progress = ConfigRequest;\r | |
1100 | goto Exit;\r | |
1101 | }\r | |
1102 | Width = 0;\r | |
1103 | CopyMem (\r | |
1104 | &Width,\r | |
1105 | TmpBuffer,\r | |
1106 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1107 | );\r | |
1108 | FreePool (TmpBuffer);\r | |
1109 | \r | |
1110 | StringPtr += Length;\r | |
1111 | if (*StringPtr != 0 && *StringPtr != L'&') {\r | |
1112 | *Progress = StringPtr - Length - StrLen (L"&WIDTH=");\r | |
1113 | Status = EFI_INVALID_PARAMETER;\r | |
1114 | goto Exit;\r | |
1115 | }\r | |
1116 | \r | |
1117 | //\r | |
1118 | // Calculate Value and convert it to hex string.\r | |
1119 | //\r | |
1120 | if (Offset + Width > BlockSize) {\r | |
1121 | *Progress = StringPtr;\r | |
1122 | Status = EFI_DEVICE_ERROR;\r | |
1123 | goto Exit;\r | |
1124 | }\r | |
1125 | \r | |
1126 | Value = (UINT8 *) AllocateZeroPool (Width);\r | |
1127 | if (Value == NULL) {\r | |
1128 | *Progress = ConfigRequest;\r | |
1129 | Status = EFI_OUT_OF_RESOURCES;\r | |
1130 | goto Exit;\r | |
1131 | }\r | |
1132 | \r | |
1133 | CopyMem (Value, (UINT8 *) Block + Offset, Width);\r | |
1134 | \r | |
1135 | Length = Width * 2 + 1;\r | |
1136 | ValueStr = (EFI_STRING) AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1137 | if (ValueStr == NULL) {\r | |
1138 | *Progress = ConfigRequest;\r | |
1139 | Status = EFI_OUT_OF_RESOURCES;\r | |
1140 | goto Exit;\r | |
1141 | }\r | |
1142 | \r | |
1143 | TemString = ValueStr;\r | |
1144 | TemBuffer = Value + Width - 1;\r | |
1145 | for (Index = 0; Index < Width; Index ++, TemBuffer --) {\r | |
1146 | TemString += UnicodeValueToString (TemString, PREFIX_ZERO | RADIX_HEX, *TemBuffer, 2);\r | |
1147 | }\r | |
1148 | HiiToLower (ValueStr);\r | |
1149 | \r | |
1150 | FreePool (Value);\r | |
1151 | Value = NULL;\r | |
1152 | \r | |
1153 | //\r | |
1154 | // Build a ConfigElement\r | |
1155 | //\r | |
1156 | Length += StringPtr - TmpPtr + 1 + StrLen (L"VALUE=");\r | |
1157 | ConfigElement = (EFI_STRING) AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1158 | if (ConfigElement == NULL) {\r | |
1159 | Status = EFI_OUT_OF_RESOURCES;\r | |
1160 | goto Exit;\r | |
1161 | }\r | |
1162 | CopyMem (ConfigElement, TmpPtr, (StringPtr - TmpPtr + 1) * sizeof (CHAR16));\r | |
1163 | if (*StringPtr == 0) {\r | |
1164 | *(ConfigElement + (StringPtr - TmpPtr)) = L'&';\r | |
1165 | }\r | |
1166 | *(ConfigElement + (StringPtr - TmpPtr) + 1) = 0;\r | |
1167 | StrCat (ConfigElement, L"VALUE=");\r | |
1168 | StrCat (ConfigElement, ValueStr);\r | |
1169 | \r | |
1170 | AppendToMultiString (Config, ConfigElement);\r | |
1171 | \r | |
1172 | FreePool (ConfigElement);\r | |
1173 | FreePool (ValueStr);\r | |
1174 | ConfigElement = NULL;\r | |
1175 | ValueStr = NULL;\r | |
1176 | \r | |
1177 | //\r | |
1178 | // If '\0', parsing is finished. Otherwise skip '&' to continue\r | |
1179 | //\r | |
1180 | if (*StringPtr == 0) {\r | |
1181 | break;\r | |
1182 | }\r | |
1183 | AppendToMultiString (Config, L"&");\r | |
1184 | StringPtr++;\r | |
1185 | \r | |
1186 | }\r | |
1187 | \r | |
1188 | if (*StringPtr != 0) {\r | |
1189 | *Progress = StringPtr - 1;\r | |
1190 | Status = EFI_INVALID_PARAMETER;\r | |
1191 | goto Exit;\r | |
1192 | }\r | |
1193 | \r | |
1194 | *Progress = StringPtr;\r | |
1195 | return EFI_SUCCESS;\r | |
1196 | \r | |
1197 | Exit:\r | |
1198 | FreePool (*Config);\r | |
1199 | if (ValueStr != NULL) {\r | |
1200 | FreePool (ValueStr);\r | |
1201 | }\r | |
1202 | if (Value != NULL) {\r | |
1203 | FreePool (Value);\r | |
1204 | }\r | |
1205 | if (ConfigElement != NULL) {\r | |
1206 | FreePool (ConfigElement);\r | |
1207 | }\r | |
1208 | \r | |
1209 | return Status;\r | |
1210 | \r | |
1211 | }\r | |
1212 | \r | |
1213 | \r | |
1214 | /**\r | |
1215 | This helper function is to be called by drivers to map configuration strings\r | |
1216 | to configurations stored in byte array ("block") formats such as UEFI Variables.\r | |
1217 | \r | |
1218 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
1219 | instance.\r | |
1220 | @param ConfigResp A null-terminated Unicode string in <ConfigResp>\r | |
1221 | format.\r | |
1222 | @param Block A possibly null array of bytes representing the\r | |
1223 | current block. Only bytes referenced in the\r | |
1224 | ConfigResp string in the block are modified. If\r | |
1225 | this parameter is null or if the *BlockSize\r | |
1226 | parameter is (on input) shorter than required by\r | |
1227 | the Configuration string, only the BlockSize\r | |
1228 | parameter is updated and an appropriate status\r | |
1229 | (see below) is returned.\r | |
1230 | @param BlockSize The length of the Block in units of UINT8. On\r | |
1231 | input, this is the size of the Block. On output,\r | |
1232 | if successful, contains the index of the last\r | |
1233 | modified byte in the Block.\r | |
1234 | @param Progress On return, points to an element of the ConfigResp\r | |
1235 | string filled in with the offset of the most\r | |
1236 | recent '&' before the first failing name / value\r | |
1237 | pair (or the beginning of the string if the\r | |
1238 | failure is in the first name / value pair) or the\r | |
1239 | terminating NULL if all was successful.\r | |
1240 | \r | |
1241 | @retval EFI_SUCCESS The request succeeded. Progress points to the null\r | |
1242 | terminator at the end of the ConfigResp string.\r | |
1243 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate Config. Progress\r | |
1244 | points to the first character of ConfigResp.\r | |
1245 | @retval EFI_INVALID_PARAMETER Passing in a NULL for the ConfigResp or\r | |
1246 | Block parameter would result in this type of\r | |
1247 | error. Progress points to the first character of\r | |
1248 | ConfigResp.\r | |
1249 | @retval EFI_INVALID_PARAMETER Encountered non <BlockName> formatted name /\r | |
1250 | value pair. Block is left updated and\r | |
1251 | Progress points at the '&' preceding the first\r | |
1252 | non-<BlockName>.\r | |
1253 | \r | |
1254 | **/\r | |
1255 | EFI_STATUS\r | |
1256 | EFIAPI\r | |
1257 | HiiConfigToBlock (\r | |
1258 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
1259 | IN CONST EFI_STRING ConfigResp,\r | |
1260 | IN OUT UINT8 *Block,\r | |
1261 | IN OUT UINTN *BlockSize,\r | |
1262 | OUT EFI_STRING *Progress\r | |
1263 | )\r | |
1264 | {\r | |
1265 | HII_DATABASE_PRIVATE_DATA *Private;\r | |
1266 | EFI_STRING StringPtr;\r | |
1267 | UINTN Length;\r | |
1268 | EFI_STATUS Status;\r | |
1269 | UINT8 *TmpBuffer;\r | |
1270 | UINTN Offset;\r | |
1271 | UINTN Width;\r | |
1272 | UINT8 *Value;\r | |
1273 | UINTN BufferSize;\r | |
1274 | \r | |
1275 | if (This == NULL || BlockSize == NULL || Progress == NULL) {\r | |
1276 | return EFI_INVALID_PARAMETER;\r | |
1277 | }\r | |
1278 | \r | |
1279 | if (ConfigResp == NULL || Block == NULL) {\r | |
1280 | *Progress = ConfigResp;\r | |
1281 | return EFI_INVALID_PARAMETER;\r | |
1282 | }\r | |
1283 | \r | |
1284 | Private = CONFIG_ROUTING_DATABASE_PRIVATE_DATA_FROM_THIS (This);\r | |
1285 | ASSERT (Private != NULL);\r | |
1286 | \r | |
1287 | StringPtr = ConfigResp;\r | |
1288 | BufferSize = *BlockSize;\r | |
1289 | Value = NULL;\r | |
1290 | \r | |
1291 | //\r | |
1292 | // Jump <ConfigHdr>\r | |
1293 | //\r | |
1294 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1295 | *Progress = StringPtr;\r | |
1296 | Status = EFI_INVALID_PARAMETER;\r | |
1297 | goto Exit;\r | |
1298 | }\r | |
1299 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"PATH=", StrLen (L"PATH=")) != 0) {\r | |
1300 | StringPtr++;\r | |
1301 | }\r | |
1302 | if (*StringPtr == 0) {\r | |
1303 | *Progress = StringPtr;\r | |
1304 | Status = EFI_INVALID_PARAMETER;\r | |
1305 | goto Exit;\r | |
1306 | }\r | |
1307 | \r | |
1308 | while (*StringPtr != L'&' && *StringPtr != 0) {\r | |
1309 | StringPtr++;\r | |
1310 | }\r | |
1311 | if (*StringPtr == 0) {\r | |
1312 | *Progress = StringPtr;\r | |
1313 | Status = EFI_INVALID_PARAMETER;\r | |
1314 | goto Exit;\r | |
1315 | }\r | |
1316 | //\r | |
1317 | // Skip '&'\r | |
1318 | //\r | |
1319 | StringPtr++;\r | |
1320 | \r | |
1321 | //\r | |
1322 | // Parse each <ConfigElement> if exists\r | |
1323 | // Only <BlockConfig> format is supported by this help function.\r | |
1324 | // <BlockConfig> ::= 'OFFSET='<Number>&'WIDTH='<Number>&'VALUE='<Number>\r | |
1325 | //\r | |
1326 | while (*StringPtr != 0 && StrnCmp (StringPtr, L"OFFSET=", StrLen (L"OFFSET=")) == 0) {\r | |
1327 | StringPtr += StrLen (L"OFFSET=");\r | |
1328 | //\r | |
1329 | // Get Offset\r | |
1330 | //\r | |
1331 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1332 | if (EFI_ERROR (Status)) {\r | |
1333 | *Progress = ConfigResp;\r | |
1334 | goto Exit;\r | |
1335 | }\r | |
1336 | Offset = 0;\r | |
1337 | CopyMem (\r | |
1338 | &Offset,\r | |
1339 | TmpBuffer,\r | |
1340 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1341 | );\r | |
1342 | FreePool (TmpBuffer);\r | |
1343 | \r | |
1344 | StringPtr += Length;\r | |
1345 | if (StrnCmp (StringPtr, L"&WIDTH=", StrLen (L"&WIDTH=")) != 0) {\r | |
1346 | *Progress = StringPtr - Length - StrLen (L"OFFSET=") - 1;\r | |
1347 | Status = EFI_INVALID_PARAMETER;\r | |
1348 | goto Exit;\r | |
1349 | }\r | |
1350 | StringPtr += StrLen (L"&WIDTH=");\r | |
1351 | \r | |
1352 | //\r | |
1353 | // Get Width\r | |
1354 | //\r | |
1355 | Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);\r | |
1356 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1357 | *Progress = ConfigResp;\r | |
1358 | goto Exit;\r | |
1359 | }\r | |
1360 | Width = 0;\r | |
1361 | CopyMem (\r | |
1362 | &Width,\r | |
1363 | TmpBuffer,\r | |
1364 | (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)\r | |
1365 | );\r | |
1366 | FreePool (TmpBuffer);\r | |
1367 | \r | |
1368 | StringPtr += Length;\r | |
1369 | if (StrnCmp (StringPtr, L"&VALUE=", StrLen (L"&VALUE=")) != 0) {\r | |
1370 | *Progress = StringPtr - Length - StrLen (L"&WIDTH=");\r | |
1371 | Status = EFI_INVALID_PARAMETER;\r | |
1372 | goto Exit;\r | |
1373 | }\r | |
1374 | StringPtr += StrLen (L"&VALUE=");\r | |
1375 | \r | |
1376 | //\r | |
1377 | // Get Value\r | |
1378 | //\r | |
1379 | Status = GetValueOfNumber (StringPtr, &Value, &Length);\r | |
1380 | if (EFI_ERROR (Status)) {\r | |
1381 | *Progress = ConfigResp;\r | |
1382 | goto Exit;\r | |
1383 | }\r | |
1384 | \r | |
1385 | StringPtr += Length;\r | |
1386 | if (*StringPtr != 0 && *StringPtr != L'&') {\r | |
1387 | *Progress = StringPtr - Length - 7;\r | |
1388 | Status = EFI_INVALID_PARAMETER;\r | |
1389 | goto Exit;\r | |
1390 | }\r | |
1391 | \r | |
1392 | //\r | |
1393 | // Update the Block with configuration info\r | |
1394 | //\r | |
1395 | \r | |
1396 | if (Offset + Width > BufferSize) {\r | |
1397 | return EFI_DEVICE_ERROR;\r | |
1398 | }\r | |
1399 | \r | |
1400 | CopyMem (Block + Offset, Value, Width);\r | |
1401 | *BlockSize = Offset + Width - 1;\r | |
1402 | \r | |
1403 | FreePool (Value);\r | |
1404 | Value = NULL;\r | |
1405 | \r | |
1406 | //\r | |
1407 | // If '\0', parsing is finished. Otherwise skip '&' to continue\r | |
1408 | //\r | |
1409 | if (*StringPtr == 0) {\r | |
1410 | break;\r | |
1411 | }\r | |
1412 | \r | |
1413 | StringPtr++;\r | |
1414 | }\r | |
1415 | \r | |
1416 | if (*StringPtr != 0) {\r | |
1417 | *Progress = StringPtr - 1;\r | |
1418 | Status = EFI_INVALID_PARAMETER;\r | |
1419 | goto Exit;\r | |
1420 | }\r | |
1421 | \r | |
1422 | *Progress = StringPtr;\r | |
1423 | return EFI_SUCCESS;\r | |
1424 | \r | |
1425 | Exit:\r | |
1426 | \r | |
1427 | if (Value != NULL) {\r | |
1428 | FreePool (Value);\r | |
1429 | }\r | |
1430 | return Status;\r | |
1431 | }\r | |
1432 | \r | |
1433 | \r | |
1434 | /**\r | |
1435 | This helper function is to be called by drivers to extract portions of\r | |
1436 | a larger configuration string.\r | |
1437 | \r | |
1438 | @param This A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL\r | |
1439 | instance.\r | |
1440 | @param Configuration A null-terminated Unicode string in\r | |
1441 | <MultiConfigAltResp> format.\r | |
1442 | @param Guid A pointer to the GUID value to search for in the\r | |
1443 | routing portion of the ConfigResp string when\r | |
1444 | retrieving the requested data. If Guid is NULL,\r | |
1445 | then all GUID values will be searched for.\r | |
1446 | @param Name A pointer to the NAME value to search for in the\r | |
1447 | routing portion of the ConfigResp string when\r | |
1448 | retrieving the requested data. If Name is NULL,\r | |
1449 | then all Name values will be searched for.\r | |
1450 | @param DevicePath A pointer to the PATH value to search for in the\r | |
1451 | routing portion of the ConfigResp string when\r | |
1452 | retrieving the requested data. If DevicePath is\r | |
1453 | NULL, then all DevicePath values will be searched\r | |
1454 | for.\r | |
1455 | @param AltCfgId A pointer to the ALTCFG value to search for in the\r | |
1456 | routing portion of the ConfigResp string when\r | |
1457 | retrieving the requested data. If this parameter\r | |
1458 | is NULL, then the current setting will be\r | |
1459 | retrieved.\r | |
1460 | @param AltCfgResp A pointer to a buffer which will be allocated by\r | |
1461 | the function which contains the retrieved string\r | |
1462 | as requested. This buffer is only allocated if\r | |
1463 | the call was successful.\r | |
1464 | \r | |
1465 | @retval EFI_SUCCESS The request succeeded. The requested data was\r | |
1466 | extracted and placed in the newly allocated\r | |
1467 | AltCfgResp buffer.\r | |
1468 | @retval EFI_OUT_OF_RESOURCES Not enough memory to allocate AltCfgResp.\r | |
1469 | @retval EFI_INVALID_PARAMETER Any parameter is invalid.\r | |
1470 | @retval EFI_NOT_FOUND Target for the specified routing data was not\r | |
1471 | found.\r | |
1472 | \r | |
1473 | **/\r | |
1474 | EFI_STATUS\r | |
1475 | EFIAPI\r | |
1476 | HiiGetAltCfg (\r | |
1477 | IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This,\r | |
1478 | IN CONST EFI_STRING Configuration,\r | |
1479 | IN CONST EFI_GUID *Guid,\r | |
1480 | IN CONST EFI_STRING Name,\r | |
1481 | IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
1482 | IN CONST UINT16 *AltCfgId,\r | |
1483 | OUT EFI_STRING *AltCfgResp\r | |
1484 | )\r | |
1485 | {\r | |
1486 | EFI_STATUS Status;\r | |
1487 | EFI_STRING StringPtr;\r | |
1488 | EFI_STRING HdrStart;\r | |
1489 | EFI_STRING HdrEnd;\r | |
1490 | EFI_STRING TmpPtr;\r | |
1491 | UINTN Length;\r | |
1492 | EFI_STRING GuidStr;\r | |
1493 | EFI_STRING NameStr;\r | |
1494 | EFI_STRING PathStr;\r | |
1495 | EFI_STRING AltIdStr;\r | |
1496 | EFI_STRING Result;\r | |
1497 | BOOLEAN GuidFlag;\r | |
1498 | BOOLEAN NameFlag;\r | |
1499 | BOOLEAN PathFlag;\r | |
1500 | \r | |
1501 | HdrStart = NULL;\r | |
1502 | HdrEnd = NULL;\r | |
1503 | GuidStr = NULL;\r | |
1504 | NameStr = NULL;\r | |
1505 | PathStr = NULL;\r | |
1506 | AltIdStr = NULL;\r | |
1507 | Result = NULL;\r | |
1508 | GuidFlag = FALSE;\r | |
1509 | NameFlag = FALSE;\r | |
1510 | PathFlag = FALSE;\r | |
1511 | \r | |
1512 | if (This == NULL || Configuration == NULL || AltCfgResp == NULL) {\r | |
1513 | return EFI_INVALID_PARAMETER;\r | |
1514 | }\r | |
1515 | \r | |
1516 | StringPtr = Configuration;\r | |
1517 | if (StrnCmp (StringPtr, L"GUID=", StrLen (L"GUID=")) != 0) {\r | |
1518 | return EFI_INVALID_PARAMETER;\r | |
1519 | }\r | |
1520 | \r | |
1521 | //\r | |
1522 | // Generate the sub string for later matching.\r | |
1523 | //\r | |
1524 | GenerateSubStr (L"GUID=", sizeof (EFI_GUID), (VOID *) Guid, 1, &GuidStr);\r | |
1525 | GenerateSubStr (\r | |
1526 | L"PATH=",\r | |
1527 | GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) DevicePath),\r | |
1528 | (VOID *) DevicePath,\r | |
1529 | 1,\r | |
1530 | &PathStr\r | |
1531 | );\r | |
1532 | if (AltCfgId != NULL) {\r | |
1533 | GenerateSubStr (L"ALTCFG=", sizeof (UINT16), (VOID *) AltCfgId, 3, &AltIdStr); \r | |
1534 | }\r | |
1535 | if (Name != NULL) {\r | |
1536 | GenerateSubStr (L"NAME=", StrLen (Name) * sizeof (CHAR16), (VOID *) Name, 2, &NameStr); \r | |
1537 | } else {\r | |
1538 | GenerateSubStr (L"NAME=", 0, NULL, 2, &NameStr);\r | |
1539 | }\r | |
1540 | \r | |
1541 | while (*StringPtr != 0) {\r | |
1542 | //\r | |
1543 | // Try to match the GUID\r | |
1544 | //\r | |
1545 | if (!GuidFlag) {\r | |
1546 | TmpPtr = StrStr (StringPtr, GuidStr);\r | |
1547 | if (TmpPtr == NULL) {\r | |
1548 | Status = EFI_NOT_FOUND;\r | |
1549 | goto Exit;\r | |
1550 | }\r | |
1551 | HdrStart = TmpPtr;\r | |
1552 | \r | |
1553 | //\r | |
1554 | // Jump to <NameHdr>\r | |
1555 | //\r | |
1556 | if (Guid != NULL) {\r | |
1557 | StringPtr = TmpPtr + StrLen (GuidStr);\r | |
1558 | } else {\r | |
1559 | StringPtr = StrStr (TmpPtr, L"NAME=");\r | |
1560 | if (StringPtr == NULL) {\r | |
1561 | Status = EFI_NOT_FOUND;\r | |
1562 | goto Exit;\r | |
1563 | }\r | |
1564 | }\r | |
1565 | GuidFlag = TRUE;\r | |
1566 | }\r | |
1567 | \r | |
1568 | //\r | |
1569 | // Try to match the NAME\r | |
1570 | //\r | |
1571 | if (GuidFlag && !NameFlag) {\r | |
1572 | if (StrnCmp (StringPtr, NameStr, StrLen (NameStr)) != 0) {\r | |
1573 | GuidFlag = FALSE;\r | |
1574 | } else {\r | |
1575 | //\r | |
1576 | // Jump to <PathHdr>\r | |
1577 | //\r | |
1578 | if (Name != NULL) {\r | |
1579 | StringPtr += StrLen (NameStr);\r | |
1580 | } else {\r | |
1581 | StringPtr = StrStr (StringPtr, L"PATH=");\r | |
1582 | if (StringPtr == NULL) {\r | |
1583 | Status = EFI_NOT_FOUND;\r | |
1584 | goto Exit;\r | |
1585 | }\r | |
1586 | }\r | |
1587 | NameFlag = TRUE;\r | |
1588 | }\r | |
1589 | }\r | |
1590 | \r | |
1591 | //\r | |
1592 | // Try to match the DevicePath\r | |
1593 | //\r | |
1594 | if (GuidFlag && NameFlag && !PathFlag) {\r | |
1595 | if (StrnCmp (StringPtr, PathStr, StrLen (PathStr)) != 0) {\r | |
1596 | GuidFlag = FALSE;\r | |
1597 | NameFlag = FALSE;\r | |
1598 | } else {\r | |
1599 | //\r | |
1600 | // Jump to '&' before <DescHdr> or <ConfigBody>\r | |
1601 | //\r | |
1602 | if (DevicePath != NULL) {\r | |
1603 | StringPtr += StrLen (PathStr);\r | |
1604 | } else {\r | |
1605 | StringPtr = StrStr (StringPtr, L"&");\r | |
1606 | if (StringPtr == NULL) {\r | |
1607 | Status = EFI_NOT_FOUND;\r | |
1608 | goto Exit;\r | |
1609 | }\r | |
1610 | }\r | |
1611 | PathFlag = TRUE;\r | |
1612 | HdrEnd = ++StringPtr;\r | |
1613 | }\r | |
1614 | }\r | |
1615 | \r | |
1616 | //\r | |
1617 | // Try to match the AltCfgId\r | |
1618 | //\r | |
1619 | if (GuidFlag && NameFlag && PathFlag) {\r | |
1620 | if (AltCfgId == NULL) {\r | |
1621 | //\r | |
1622 | // Return Current Setting when AltCfgId is NULL.\r | |
1623 | //\r | |
1624 | Status = OutputConfigBody (StringPtr, &Result);\r | |
1625 | goto Exit;\r | |
1626 | }\r | |
1627 | //\r | |
1628 | // Search the <ConfigAltResp> to get the <AltResp> with AltCfgId.\r | |
1629 | //\r | |
1630 | if (StrnCmp (StringPtr, AltIdStr, StrLen (AltIdStr)) != 0) {\r | |
1631 | GuidFlag = FALSE;\r | |
1632 | NameFlag = FALSE;\r | |
1633 | PathFlag = FALSE;\r | |
1634 | } else {\r | |
1635 | Status = OutputConfigBody (StringPtr, &Result);\r | |
1636 | goto Exit;\r | |
1637 | }\r | |
1638 | }\r | |
1639 | }\r | |
1640 | \r | |
1641 | Status = EFI_NOT_FOUND;\r | |
1642 | \r | |
1643 | Exit:\r | |
1644 | \r | |
1645 | if (!EFI_ERROR (Status) && (Result != NULL)) {\r | |
1646 | //\r | |
1647 | // Copy the <ConfigHdr> and <ConfigBody>\r | |
1648 | //\r | |
1649 | Length = HdrEnd - HdrStart + StrLen (Result);\r | |
1650 | *AltCfgResp = AllocateZeroPool (Length * sizeof (CHAR16));\r | |
1651 | if (*AltCfgResp == NULL) {\r | |
1652 | Status = EFI_OUT_OF_RESOURCES;\r | |
1653 | } else {\r | |
1654 | StrnCpy (*AltCfgResp, HdrStart, HdrEnd - HdrStart);\r | |
1655 | StrCat (*AltCfgResp, Result);\r | |
1656 | Status = EFI_SUCCESS;\r | |
1657 | }\r | |
1658 | }\r | |
1659 | \r | |
1660 | if (GuidStr != NULL) {\r | |
1661 | FreePool (GuidStr);\r | |
1662 | }\r | |
1663 | if (NameStr != NULL) {\r | |
1664 | FreePool (NameStr);\r | |
1665 | }\r | |
1666 | if (PathStr != NULL) {\r | |
1667 | FreePool (PathStr);\r | |
1668 | }\r | |
1669 | if (AltIdStr != NULL) {\r | |
1670 | FreePool (AltIdStr);\r | |
1671 | }\r | |
1672 | if (Result != NULL) {\r | |
1673 | FreePool (Result);\r | |
1674 | }\r | |
1675 | \r | |
1676 | return Status;\r | |
1677 | \r | |
1678 | }\r | |
1679 | \r | |
1680 | \r |