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1 | /** @file\r | |
2 | HII Config Access protocol implementation of SecureBoot configuration module.\r | |
3 | \r | |
4 | Copyright (c) 2011 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
5 | 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 | #include "SecureBootConfigImpl.h"\r | |
16 | \r | |
17 | CHAR16 mSecureBootStorageName[] = L"SECUREBOOT_CONFIGURATION";\r | |
18 | \r | |
19 | SECUREBOOT_CONFIG_PRIVATE_DATA mSecureBootConfigPrivateDateTemplate = {\r | |
20 | SECUREBOOT_CONFIG_PRIVATE_DATA_SIGNATURE,\r | |
21 | {\r | |
22 | SecureBootExtractConfig,\r | |
23 | SecureBootRouteConfig,\r | |
24 | SecureBootCallback\r | |
25 | }\r | |
26 | };\r | |
27 | \r | |
28 | HII_VENDOR_DEVICE_PATH mSecureBootHiiVendorDevicePath = {\r | |
29 | {\r | |
30 | {\r | |
31 | HARDWARE_DEVICE_PATH,\r | |
32 | HW_VENDOR_DP,\r | |
33 | {\r | |
34 | (UINT8) (sizeof (VENDOR_DEVICE_PATH)),\r | |
35 | (UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)\r | |
36 | }\r | |
37 | },\r | |
38 | SECUREBOOT_CONFIG_FORM_SET_GUID\r | |
39 | },\r | |
40 | {\r | |
41 | END_DEVICE_PATH_TYPE,\r | |
42 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
43 | {\r | |
44 | (UINT8) (END_DEVICE_PATH_LENGTH),\r | |
45 | (UINT8) ((END_DEVICE_PATH_LENGTH) >> 8)\r | |
46 | }\r | |
47 | }\r | |
48 | };\r | |
49 | \r | |
50 | \r | |
51 | BOOLEAN mIsEnterSecureBootForm = FALSE;\r | |
52 | \r | |
53 | //\r | |
54 | // OID ASN.1 Value for Hash Algorithms\r | |
55 | //\r | |
56 | UINT8 mHashOidValue[] = {\r | |
57 | 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x02, 0x05, // OBJ_md5\r | |
58 | 0x2B, 0x0E, 0x03, 0x02, 0x1A, // OBJ_sha1\r | |
59 | 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x04, // OBJ_sha224\r | |
60 | 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, // OBJ_sha256\r | |
61 | 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02, // OBJ_sha384\r | |
62 | 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03, // OBJ_sha512\r | |
63 | };\r | |
64 | \r | |
65 | HASH_TABLE mHash[] = {\r | |
66 | { L"SHA1", 20, &mHashOidValue[8], 5, Sha1GetContextSize, Sha1Init, Sha1Update, Sha1Final },\r | |
67 | { L"SHA224", 28, &mHashOidValue[13], 9, NULL, NULL, NULL, NULL },\r | |
68 | { L"SHA256", 32, &mHashOidValue[22], 9, Sha256GetContextSize, Sha256Init, Sha256Update, Sha256Final},\r | |
69 | { L"SHA384", 48, &mHashOidValue[31], 9, Sha384GetContextSize, Sha384Init, Sha384Update, Sha384Final},\r | |
70 | { L"SHA512", 64, &mHashOidValue[40], 9, Sha512GetContextSize, Sha512Init, Sha512Update, Sha512Final}\r | |
71 | };\r | |
72 | \r | |
73 | //\r | |
74 | // Variable Definitions\r | |
75 | //\r | |
76 | UINT32 mPeCoffHeaderOffset = 0;\r | |
77 | WIN_CERTIFICATE *mCertificate = NULL;\r | |
78 | IMAGE_TYPE mImageType;\r | |
79 | UINT8 *mImageBase = NULL;\r | |
80 | UINTN mImageSize = 0;\r | |
81 | UINT8 mImageDigest[MAX_DIGEST_SIZE];\r | |
82 | UINTN mImageDigestSize;\r | |
83 | EFI_GUID mCertType;\r | |
84 | EFI_IMAGE_SECURITY_DATA_DIRECTORY *mSecDataDir = NULL;\r | |
85 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION mNtHeader;\r | |
86 | \r | |
87 | //\r | |
88 | // Possible DER-encoded certificate file suffixes, end with NULL pointer.\r | |
89 | //\r | |
90 | CHAR16* mDerEncodedSuffix[] = {\r | |
91 | L".cer",\r | |
92 | L".der",\r | |
93 | L".crt",\r | |
94 | NULL\r | |
95 | };\r | |
96 | CHAR16* mSupportX509Suffix = L"*.cer/der/crt";\r | |
97 | \r | |
98 | /**\r | |
99 | This code checks if the FileSuffix is one of the possible DER-encoded certificate suffix.\r | |
100 | \r | |
101 | @param[in] FileSuffix The suffix of the input certificate file\r | |
102 | \r | |
103 | @retval TRUE It's a DER-encoded certificate.\r | |
104 | @retval FALSE It's NOT a DER-encoded certificate.\r | |
105 | \r | |
106 | **/\r | |
107 | BOOLEAN\r | |
108 | IsDerEncodeCertificate (\r | |
109 | IN CONST CHAR16 *FileSuffix\r | |
110 | )\r | |
111 | {\r | |
112 | UINTN Index;\r | |
113 | for (Index = 0; mDerEncodedSuffix[Index] != NULL; Index++) {\r | |
114 | if (StrCmp (FileSuffix, mDerEncodedSuffix[Index]) == 0) {\r | |
115 | return TRUE;\r | |
116 | }\r | |
117 | }\r | |
118 | return FALSE;\r | |
119 | }\r | |
120 | \r | |
121 | /**\r | |
122 | Set Secure Boot option into variable space.\r | |
123 | \r | |
124 | @param[in] VarValue The option of Secure Boot.\r | |
125 | \r | |
126 | @retval EFI_SUCCESS The operation is finished successfully.\r | |
127 | @retval Others Other errors as indicated.\r | |
128 | \r | |
129 | **/\r | |
130 | EFI_STATUS\r | |
131 | SaveSecureBootVariable (\r | |
132 | IN UINT8 VarValue\r | |
133 | )\r | |
134 | {\r | |
135 | EFI_STATUS Status;\r | |
136 | \r | |
137 | Status = gRT->SetVariable (\r | |
138 | EFI_SECURE_BOOT_ENABLE_NAME,\r | |
139 | &gEfiSecureBootEnableDisableGuid,\r | |
140 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r | |
141 | sizeof (UINT8),\r | |
142 | &VarValue\r | |
143 | );\r | |
144 | return Status;\r | |
145 | }\r | |
146 | \r | |
147 | /**\r | |
148 | Create a time based data payload by concatenating the EFI_VARIABLE_AUTHENTICATION_2\r | |
149 | descriptor with the input data. NO authentication is required in this function.\r | |
150 | \r | |
151 | @param[in, out] DataSize On input, the size of Data buffer in bytes.\r | |
152 | On output, the size of data returned in Data\r | |
153 | buffer in bytes.\r | |
154 | @param[in, out] Data On input, Pointer to data buffer to be wrapped or\r | |
155 | pointer to NULL to wrap an empty payload.\r | |
156 | On output, Pointer to the new payload date buffer allocated from pool,\r | |
157 | it's caller's responsibility to free the memory when finish using it.\r | |
158 | \r | |
159 | @retval EFI_SUCCESS Create time based payload successfully.\r | |
160 | @retval EFI_OUT_OF_RESOURCES There are not enough memory resourses to create time based payload.\r | |
161 | @retval EFI_INVALID_PARAMETER The parameter is invalid.\r | |
162 | @retval Others Unexpected error happens.\r | |
163 | \r | |
164 | **/\r | |
165 | EFI_STATUS\r | |
166 | CreateTimeBasedPayload (\r | |
167 | IN OUT UINTN *DataSize,\r | |
168 | IN OUT UINT8 **Data\r | |
169 | )\r | |
170 | {\r | |
171 | EFI_STATUS Status;\r | |
172 | UINT8 *NewData;\r | |
173 | UINT8 *Payload;\r | |
174 | UINTN PayloadSize;\r | |
175 | EFI_VARIABLE_AUTHENTICATION_2 *DescriptorData;\r | |
176 | UINTN DescriptorSize;\r | |
177 | EFI_TIME Time;\r | |
178 | \r | |
179 | if (Data == NULL || DataSize == NULL) {\r | |
180 | return EFI_INVALID_PARAMETER;\r | |
181 | }\r | |
182 | \r | |
183 | //\r | |
184 | // In Setup mode or Custom mode, the variable does not need to be signed but the\r | |
185 | // parameters to the SetVariable() call still need to be prepared as authenticated\r | |
186 | // variable. So we create EFI_VARIABLE_AUTHENTICATED_2 descriptor without certificate\r | |
187 | // data in it.\r | |
188 | //\r | |
189 | Payload = *Data;\r | |
190 | PayloadSize = *DataSize;\r | |
191 | \r | |
192 | DescriptorSize = OFFSET_OF (EFI_VARIABLE_AUTHENTICATION_2, AuthInfo) + OFFSET_OF (WIN_CERTIFICATE_UEFI_GUID, CertData);\r | |
193 | NewData = (UINT8*) AllocateZeroPool (DescriptorSize + PayloadSize);\r | |
194 | if (NewData == NULL) {\r | |
195 | return EFI_OUT_OF_RESOURCES;\r | |
196 | }\r | |
197 | \r | |
198 | if ((Payload != NULL) && (PayloadSize != 0)) {\r | |
199 | CopyMem (NewData + DescriptorSize, Payload, PayloadSize);\r | |
200 | }\r | |
201 | \r | |
202 | DescriptorData = (EFI_VARIABLE_AUTHENTICATION_2 *) (NewData);\r | |
203 | \r | |
204 | ZeroMem (&Time, sizeof (EFI_TIME));\r | |
205 | Status = gRT->GetTime (&Time, NULL);\r | |
206 | if (EFI_ERROR (Status)) {\r | |
207 | FreePool(NewData);\r | |
208 | return Status;\r | |
209 | }\r | |
210 | Time.Pad1 = 0;\r | |
211 | Time.Nanosecond = 0;\r | |
212 | Time.TimeZone = 0;\r | |
213 | Time.Daylight = 0;\r | |
214 | Time.Pad2 = 0;\r | |
215 | CopyMem (&DescriptorData->TimeStamp, &Time, sizeof (EFI_TIME));\r | |
216 | \r | |
217 | DescriptorData->AuthInfo.Hdr.dwLength = OFFSET_OF (WIN_CERTIFICATE_UEFI_GUID, CertData);\r | |
218 | DescriptorData->AuthInfo.Hdr.wRevision = 0x0200;\r | |
219 | DescriptorData->AuthInfo.Hdr.wCertificateType = WIN_CERT_TYPE_EFI_GUID;\r | |
220 | CopyGuid (&DescriptorData->AuthInfo.CertType, &gEfiCertPkcs7Guid);\r | |
221 | \r | |
222 | if (Payload != NULL) {\r | |
223 | FreePool(Payload);\r | |
224 | }\r | |
225 | \r | |
226 | *DataSize = DescriptorSize + PayloadSize;\r | |
227 | *Data = NewData;\r | |
228 | return EFI_SUCCESS;\r | |
229 | }\r | |
230 | \r | |
231 | /**\r | |
232 | Internal helper function to delete a Variable given its name and GUID, NO authentication\r | |
233 | required.\r | |
234 | \r | |
235 | @param[in] VariableName Name of the Variable.\r | |
236 | @param[in] VendorGuid GUID of the Variable.\r | |
237 | \r | |
238 | @retval EFI_SUCCESS Variable deleted successfully.\r | |
239 | @retval Others The driver failed to start the device.\r | |
240 | \r | |
241 | **/\r | |
242 | EFI_STATUS\r | |
243 | DeleteVariable (\r | |
244 | IN CHAR16 *VariableName,\r | |
245 | IN EFI_GUID *VendorGuid\r | |
246 | )\r | |
247 | {\r | |
248 | EFI_STATUS Status;\r | |
249 | VOID* Variable;\r | |
250 | UINT8 *Data;\r | |
251 | UINTN DataSize;\r | |
252 | UINT32 Attr;\r | |
253 | \r | |
254 | GetVariable2 (VariableName, VendorGuid, &Variable, NULL);\r | |
255 | if (Variable == NULL) {\r | |
256 | return EFI_SUCCESS;\r | |
257 | }\r | |
258 | FreePool (Variable);\r | |
259 | \r | |
260 | Data = NULL;\r | |
261 | DataSize = 0;\r | |
262 | Attr = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS\r | |
263 | | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS;\r | |
264 | \r | |
265 | Status = CreateTimeBasedPayload (&DataSize, &Data);\r | |
266 | if (EFI_ERROR (Status)) {\r | |
267 | DEBUG ((EFI_D_ERROR, "Fail to create time-based data payload: %r", Status));\r | |
268 | return Status;\r | |
269 | }\r | |
270 | \r | |
271 | Status = gRT->SetVariable (\r | |
272 | VariableName,\r | |
273 | VendorGuid,\r | |
274 | Attr,\r | |
275 | DataSize,\r | |
276 | Data\r | |
277 | );\r | |
278 | if (Data != NULL) {\r | |
279 | FreePool (Data);\r | |
280 | }\r | |
281 | return Status;\r | |
282 | }\r | |
283 | \r | |
284 | /**\r | |
285 | \r | |
286 | Set the platform secure boot mode into "Custom" or "Standard" mode.\r | |
287 | \r | |
288 | @param[in] SecureBootMode New secure boot mode: STANDARD_SECURE_BOOT_MODE or\r | |
289 | CUSTOM_SECURE_BOOT_MODE.\r | |
290 | \r | |
291 | @return EFI_SUCCESS The platform has switched to the special mode successfully.\r | |
292 | @return other Fail to operate the secure boot mode.\r | |
293 | \r | |
294 | **/\r | |
295 | EFI_STATUS\r | |
296 | SetSecureBootMode (\r | |
297 | IN UINT8 SecureBootMode\r | |
298 | )\r | |
299 | {\r | |
300 | return gRT->SetVariable (\r | |
301 | EFI_CUSTOM_MODE_NAME,\r | |
302 | &gEfiCustomModeEnableGuid,\r | |
303 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r | |
304 | sizeof (UINT8),\r | |
305 | &SecureBootMode\r | |
306 | );\r | |
307 | }\r | |
308 | \r | |
309 | /**\r | |
310 | Generate the PK signature list from the X509 Certificate storing file (.cer)\r | |
311 | \r | |
312 | @param[in] X509File FileHandle of X509 Certificate storing file.\r | |
313 | @param[out] PkCert Point to the data buffer to store the signature list.\r | |
314 | \r | |
315 | @return EFI_UNSUPPORTED Unsupported Key Length.\r | |
316 | @return EFI_OUT_OF_RESOURCES There are not enough memory resourses to form the signature list.\r | |
317 | \r | |
318 | **/\r | |
319 | EFI_STATUS\r | |
320 | CreatePkX509SignatureList (\r | |
321 | IN EFI_FILE_HANDLE X509File,\r | |
322 | OUT EFI_SIGNATURE_LIST **PkCert\r | |
323 | )\r | |
324 | {\r | |
325 | EFI_STATUS Status;\r | |
326 | UINT8 *X509Data;\r | |
327 | UINTN X509DataSize;\r | |
328 | EFI_SIGNATURE_DATA *PkCertData;\r | |
329 | \r | |
330 | X509Data = NULL;\r | |
331 | PkCertData = NULL;\r | |
332 | X509DataSize = 0;\r | |
333 | \r | |
334 | Status = ReadFileContent (X509File, (VOID**) &X509Data, &X509DataSize, 0);\r | |
335 | if (EFI_ERROR (Status)) {\r | |
336 | goto ON_EXIT;\r | |
337 | }\r | |
338 | ASSERT (X509Data != NULL);\r | |
339 | \r | |
340 | //\r | |
341 | // Allocate space for PK certificate list and initialize it.\r | |
342 | // Create PK database entry with SignatureHeaderSize equals 0.\r | |
343 | //\r | |
344 | *PkCert = (EFI_SIGNATURE_LIST*) AllocateZeroPool (\r | |
345 | sizeof(EFI_SIGNATURE_LIST) + sizeof(EFI_SIGNATURE_DATA) - 1\r | |
346 | + X509DataSize\r | |
347 | );\r | |
348 | if (*PkCert == NULL) {\r | |
349 | Status = EFI_OUT_OF_RESOURCES;\r | |
350 | goto ON_EXIT;\r | |
351 | }\r | |
352 | \r | |
353 | (*PkCert)->SignatureListSize = (UINT32) (sizeof(EFI_SIGNATURE_LIST)\r | |
354 | + sizeof(EFI_SIGNATURE_DATA) - 1\r | |
355 | + X509DataSize);\r | |
356 | (*PkCert)->SignatureSize = (UINT32) (sizeof(EFI_SIGNATURE_DATA) - 1 + X509DataSize);\r | |
357 | (*PkCert)->SignatureHeaderSize = 0;\r | |
358 | CopyGuid (&(*PkCert)->SignatureType, &gEfiCertX509Guid);\r | |
359 | PkCertData = (EFI_SIGNATURE_DATA*) ((UINTN)(*PkCert)\r | |
360 | + sizeof(EFI_SIGNATURE_LIST)\r | |
361 | + (*PkCert)->SignatureHeaderSize);\r | |
362 | CopyGuid (&PkCertData->SignatureOwner, &gEfiGlobalVariableGuid);\r | |
363 | //\r | |
364 | // Fill the PK database with PKpub data from X509 certificate file.\r | |
365 | //\r | |
366 | CopyMem (&(PkCertData->SignatureData[0]), X509Data, X509DataSize);\r | |
367 | \r | |
368 | ON_EXIT:\r | |
369 | \r | |
370 | if (X509Data != NULL) {\r | |
371 | FreePool (X509Data);\r | |
372 | }\r | |
373 | \r | |
374 | if (EFI_ERROR(Status) && *PkCert != NULL) {\r | |
375 | FreePool (*PkCert);\r | |
376 | *PkCert = NULL;\r | |
377 | }\r | |
378 | \r | |
379 | return Status;\r | |
380 | }\r | |
381 | \r | |
382 | /**\r | |
383 | Enroll new PK into the System without original PK's authentication.\r | |
384 | \r | |
385 | The SignatureOwner GUID will be the same with PK's vendorguid.\r | |
386 | \r | |
387 | @param[in] PrivateData The module's private data.\r | |
388 | \r | |
389 | @retval EFI_SUCCESS New PK enrolled successfully.\r | |
390 | @retval EFI_INVALID_PARAMETER The parameter is invalid.\r | |
391 | @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.\r | |
392 | \r | |
393 | **/\r | |
394 | EFI_STATUS\r | |
395 | EnrollPlatformKey (\r | |
396 | IN SECUREBOOT_CONFIG_PRIVATE_DATA* Private\r | |
397 | )\r | |
398 | {\r | |
399 | EFI_STATUS Status;\r | |
400 | UINT32 Attr;\r | |
401 | UINTN DataSize;\r | |
402 | EFI_SIGNATURE_LIST *PkCert;\r | |
403 | UINT16* FilePostFix;\r | |
404 | UINTN NameLength;\r | |
405 | \r | |
406 | if (Private->FileContext->FileName == NULL) {\r | |
407 | return EFI_INVALID_PARAMETER;\r | |
408 | }\r | |
409 | \r | |
410 | PkCert = NULL;\r | |
411 | \r | |
412 | Status = SetSecureBootMode(CUSTOM_SECURE_BOOT_MODE);\r | |
413 | if (EFI_ERROR (Status)) {\r | |
414 | return Status;\r | |
415 | }\r | |
416 | \r | |
417 | //\r | |
418 | // Parse the file's postfix. Only support DER encoded X.509 certificate files.\r | |
419 | //\r | |
420 | NameLength = StrLen (Private->FileContext->FileName);\r | |
421 | if (NameLength <= 4) {\r | |
422 | return EFI_INVALID_PARAMETER;\r | |
423 | }\r | |
424 | FilePostFix = Private->FileContext->FileName + NameLength - 4;\r | |
425 | if (!IsDerEncodeCertificate(FilePostFix)) {\r | |
426 | DEBUG ((EFI_D_ERROR, "Unsupported file type, only DER encoded certificate (%s) is supported.", mSupportX509Suffix));\r | |
427 | return EFI_INVALID_PARAMETER;\r | |
428 | }\r | |
429 | DEBUG ((EFI_D_INFO, "FileName= %s\n", Private->FileContext->FileName));\r | |
430 | DEBUG ((EFI_D_INFO, "FilePostFix = %s\n", FilePostFix));\r | |
431 | \r | |
432 | //\r | |
433 | // Prase the selected PK file and generature PK certificate list.\r | |
434 | //\r | |
435 | Status = CreatePkX509SignatureList (\r | |
436 | Private->FileContext->FHandle,\r | |
437 | &PkCert\r | |
438 | );\r | |
439 | if (EFI_ERROR (Status)) {\r | |
440 | goto ON_EXIT;\r | |
441 | }\r | |
442 | ASSERT (PkCert != NULL);\r | |
443 | \r | |
444 | //\r | |
445 | // Set Platform Key variable.\r | |
446 | //\r | |
447 | Attr = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS\r | |
448 | | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS;\r | |
449 | DataSize = PkCert->SignatureListSize;\r | |
450 | Status = CreateTimeBasedPayload (&DataSize, (UINT8**) &PkCert);\r | |
451 | if (EFI_ERROR (Status)) {\r | |
452 | DEBUG ((EFI_D_ERROR, "Fail to create time-based data payload: %r", Status));\r | |
453 | goto ON_EXIT;\r | |
454 | }\r | |
455 | \r | |
456 | Status = gRT->SetVariable(\r | |
457 | EFI_PLATFORM_KEY_NAME,\r | |
458 | &gEfiGlobalVariableGuid,\r | |
459 | Attr,\r | |
460 | DataSize,\r | |
461 | PkCert\r | |
462 | );\r | |
463 | if (EFI_ERROR (Status)) {\r | |
464 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
465 | DEBUG ((EFI_D_ERROR, "Enroll PK failed with out of resource.\n"));\r | |
466 | }\r | |
467 | goto ON_EXIT;\r | |
468 | }\r | |
469 | \r | |
470 | ON_EXIT:\r | |
471 | \r | |
472 | if (PkCert != NULL) {\r | |
473 | FreePool(PkCert);\r | |
474 | }\r | |
475 | \r | |
476 | if (Private->FileContext->FHandle != NULL) {\r | |
477 | CloseFile (Private->FileContext->FHandle);\r | |
478 | Private->FileContext->FHandle = NULL;\r | |
479 | }\r | |
480 | \r | |
481 | return Status;\r | |
482 | }\r | |
483 | \r | |
484 | /**\r | |
485 | Remove the PK variable.\r | |
486 | \r | |
487 | @retval EFI_SUCCESS Delete PK successfully.\r | |
488 | @retval Others Could not allow to delete PK.\r | |
489 | \r | |
490 | **/\r | |
491 | EFI_STATUS\r | |
492 | DeletePlatformKey (\r | |
493 | VOID\r | |
494 | )\r | |
495 | {\r | |
496 | EFI_STATUS Status;\r | |
497 | \r | |
498 | Status = SetSecureBootMode(CUSTOM_SECURE_BOOT_MODE);\r | |
499 | if (EFI_ERROR (Status)) {\r | |
500 | return Status;\r | |
501 | }\r | |
502 | \r | |
503 | Status = DeleteVariable (\r | |
504 | EFI_PLATFORM_KEY_NAME,\r | |
505 | &gEfiGlobalVariableGuid\r | |
506 | );\r | |
507 | return Status;\r | |
508 | }\r | |
509 | \r | |
510 | /**\r | |
511 | Enroll a new KEK item from public key storing file (*.pbk).\r | |
512 | \r | |
513 | @param[in] PrivateData The module's private data.\r | |
514 | \r | |
515 | @retval EFI_SUCCESS New KEK enrolled successfully.\r | |
516 | @retval EFI_INVALID_PARAMETER The parameter is invalid.\r | |
517 | @retval EFI_UNSUPPORTED Unsupported command.\r | |
518 | @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.\r | |
519 | \r | |
520 | **/\r | |
521 | EFI_STATUS\r | |
522 | EnrollRsa2048ToKek (\r | |
523 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *Private\r | |
524 | )\r | |
525 | {\r | |
526 | EFI_STATUS Status;\r | |
527 | UINT32 Attr;\r | |
528 | UINTN DataSize;\r | |
529 | EFI_SIGNATURE_LIST *KekSigList;\r | |
530 | UINTN KeyBlobSize;\r | |
531 | UINT8 *KeyBlob;\r | |
532 | CPL_KEY_INFO *KeyInfo;\r | |
533 | EFI_SIGNATURE_DATA *KEKSigData;\r | |
534 | UINTN KekSigListSize;\r | |
535 | UINT8 *KeyBuffer;\r | |
536 | UINTN KeyLenInBytes;\r | |
537 | \r | |
538 | Attr = 0;\r | |
539 | DataSize = 0;\r | |
540 | KeyBuffer = NULL;\r | |
541 | KeyBlobSize = 0;\r | |
542 | KeyBlob = NULL;\r | |
543 | KeyInfo = NULL;\r | |
544 | KEKSigData = NULL;\r | |
545 | KekSigList = NULL;\r | |
546 | KekSigListSize = 0;\r | |
547 | \r | |
548 | //\r | |
549 | // Form the KeKpub certificate list into EFI_SIGNATURE_LIST type.\r | |
550 | // First, We have to parse out public key data from the pbk key file.\r | |
551 | //\r | |
552 | Status = ReadFileContent (\r | |
553 | Private->FileContext->FHandle,\r | |
554 | (VOID**) &KeyBlob,\r | |
555 | &KeyBlobSize,\r | |
556 | 0\r | |
557 | );\r | |
558 | if (EFI_ERROR (Status)) {\r | |
559 | goto ON_EXIT;\r | |
560 | }\r | |
561 | ASSERT (KeyBlob != NULL);\r | |
562 | KeyInfo = (CPL_KEY_INFO *) KeyBlob;\r | |
563 | if (KeyInfo->KeyLengthInBits / 8 != WIN_CERT_UEFI_RSA2048_SIZE) {\r | |
564 | DEBUG ((DEBUG_ERROR, "Unsupported key length, Only RSA2048 is supported.\n"));\r | |
565 | Status = EFI_UNSUPPORTED;\r | |
566 | goto ON_EXIT;\r | |
567 | }\r | |
568 | \r | |
569 | //\r | |
570 | // Convert the Public key to fix octet string format represented in RSA PKCS#1.\r | |
571 | //\r | |
572 | KeyLenInBytes = KeyInfo->KeyLengthInBits / 8;\r | |
573 | KeyBuffer = AllocateZeroPool (KeyLenInBytes);\r | |
574 | if (KeyBuffer == NULL) {\r | |
575 | Status = EFI_OUT_OF_RESOURCES;\r | |
576 | goto ON_EXIT;\r | |
577 | }\r | |
578 | Int2OctStr (\r | |
579 | (UINTN*) (KeyBlob + sizeof (CPL_KEY_INFO)),\r | |
580 | KeyLenInBytes / sizeof (UINTN),\r | |
581 | KeyBuffer,\r | |
582 | KeyLenInBytes\r | |
583 | );\r | |
584 | CopyMem(KeyBlob + sizeof(CPL_KEY_INFO), KeyBuffer, KeyLenInBytes);\r | |
585 | \r | |
586 | //\r | |
587 | // Form an new EFI_SIGNATURE_LIST.\r | |
588 | //\r | |
589 | KekSigListSize = sizeof(EFI_SIGNATURE_LIST)\r | |
590 | + sizeof(EFI_SIGNATURE_DATA) - 1\r | |
591 | + WIN_CERT_UEFI_RSA2048_SIZE;\r | |
592 | \r | |
593 | KekSigList = (EFI_SIGNATURE_LIST*) AllocateZeroPool (KekSigListSize);\r | |
594 | if (KekSigList == NULL) {\r | |
595 | Status = EFI_OUT_OF_RESOURCES;\r | |
596 | goto ON_EXIT;\r | |
597 | }\r | |
598 | \r | |
599 | KekSigList->SignatureListSize = sizeof(EFI_SIGNATURE_LIST)\r | |
600 | + sizeof(EFI_SIGNATURE_DATA) - 1\r | |
601 | + WIN_CERT_UEFI_RSA2048_SIZE;\r | |
602 | KekSigList->SignatureHeaderSize = 0;\r | |
603 | KekSigList->SignatureSize = sizeof(EFI_SIGNATURE_DATA) - 1 + WIN_CERT_UEFI_RSA2048_SIZE;\r | |
604 | CopyGuid (&KekSigList->SignatureType, &gEfiCertRsa2048Guid);\r | |
605 | \r | |
606 | KEKSigData = (EFI_SIGNATURE_DATA*)((UINT8*)KekSigList + sizeof(EFI_SIGNATURE_LIST));\r | |
607 | CopyGuid (&KEKSigData->SignatureOwner, Private->SignatureGUID);\r | |
608 | CopyMem (\r | |
609 | KEKSigData->SignatureData,\r | |
610 | KeyBlob + sizeof(CPL_KEY_INFO),\r | |
611 | WIN_CERT_UEFI_RSA2048_SIZE\r | |
612 | );\r | |
613 | \r | |
614 | //\r | |
615 | // Check if KEK entry has been already existed.\r | |
616 | // If true, use EFI_VARIABLE_APPEND_WRITE attribute to append the\r | |
617 | // new KEK to original variable.\r | |
618 | //\r | |
619 | Attr = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS\r | |
620 | | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS;\r | |
621 | Status = CreateTimeBasedPayload (&KekSigListSize, (UINT8**) &KekSigList);\r | |
622 | if (EFI_ERROR (Status)) {\r | |
623 | DEBUG ((EFI_D_ERROR, "Fail to create time-based data payload: %r", Status));\r | |
624 | goto ON_EXIT;\r | |
625 | }\r | |
626 | \r | |
627 | Status = gRT->GetVariable(\r | |
628 | EFI_KEY_EXCHANGE_KEY_NAME,\r | |
629 | &gEfiGlobalVariableGuid,\r | |
630 | NULL,\r | |
631 | &DataSize,\r | |
632 | NULL\r | |
633 | );\r | |
634 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
635 | Attr |= EFI_VARIABLE_APPEND_WRITE;\r | |
636 | } else if (Status != EFI_NOT_FOUND) {\r | |
637 | goto ON_EXIT;\r | |
638 | }\r | |
639 | \r | |
640 | //\r | |
641 | // Done. Now we have formed the correct KEKpub database item, just set it into variable storage,\r | |
642 | //\r | |
643 | Status = gRT->SetVariable(\r | |
644 | EFI_KEY_EXCHANGE_KEY_NAME,\r | |
645 | &gEfiGlobalVariableGuid,\r | |
646 | Attr,\r | |
647 | KekSigListSize,\r | |
648 | KekSigList\r | |
649 | );\r | |
650 | if (EFI_ERROR (Status)) {\r | |
651 | goto ON_EXIT;\r | |
652 | }\r | |
653 | \r | |
654 | ON_EXIT:\r | |
655 | \r | |
656 | CloseFile (Private->FileContext->FHandle);\r | |
657 | Private->FileContext->FHandle = NULL;\r | |
658 | Private->FileContext->FileName = NULL;\r | |
659 | \r | |
660 | if (Private->SignatureGUID != NULL) {\r | |
661 | FreePool (Private->SignatureGUID);\r | |
662 | Private->SignatureGUID = NULL;\r | |
663 | }\r | |
664 | \r | |
665 | if (KeyBlob != NULL) {\r | |
666 | FreePool (KeyBlob);\r | |
667 | }\r | |
668 | if (KeyBuffer != NULL) {\r | |
669 | FreePool (KeyBuffer);\r | |
670 | }\r | |
671 | if (KekSigList != NULL) {\r | |
672 | FreePool (KekSigList);\r | |
673 | }\r | |
674 | \r | |
675 | return Status;\r | |
676 | }\r | |
677 | \r | |
678 | /**\r | |
679 | Enroll a new KEK item from X509 certificate file.\r | |
680 | \r | |
681 | @param[in] PrivateData The module's private data.\r | |
682 | \r | |
683 | @retval EFI_SUCCESS New X509 is enrolled successfully.\r | |
684 | @retval EFI_INVALID_PARAMETER The parameter is invalid.\r | |
685 | @retval EFI_UNSUPPORTED Unsupported command.\r | |
686 | @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.\r | |
687 | \r | |
688 | **/\r | |
689 | EFI_STATUS\r | |
690 | EnrollX509ToKek (\r | |
691 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *Private\r | |
692 | )\r | |
693 | {\r | |
694 | EFI_STATUS Status;\r | |
695 | UINTN X509DataSize;\r | |
696 | VOID *X509Data;\r | |
697 | EFI_SIGNATURE_DATA *KEKSigData;\r | |
698 | EFI_SIGNATURE_LIST *KekSigList;\r | |
699 | UINTN DataSize;\r | |
700 | UINTN KekSigListSize;\r | |
701 | UINT32 Attr;\r | |
702 | \r | |
703 | X509Data = NULL;\r | |
704 | X509DataSize = 0;\r | |
705 | KekSigList = NULL;\r | |
706 | KekSigListSize = 0;\r | |
707 | DataSize = 0;\r | |
708 | KEKSigData = NULL;\r | |
709 | \r | |
710 | Status = ReadFileContent (\r | |
711 | Private->FileContext->FHandle,\r | |
712 | &X509Data,\r | |
713 | &X509DataSize,\r | |
714 | 0\r | |
715 | );\r | |
716 | if (EFI_ERROR (Status)) {\r | |
717 | goto ON_EXIT;\r | |
718 | }\r | |
719 | ASSERT (X509Data != NULL);\r | |
720 | \r | |
721 | KekSigListSize = sizeof(EFI_SIGNATURE_LIST) + sizeof(EFI_SIGNATURE_DATA) - 1 + X509DataSize;\r | |
722 | KekSigList = (EFI_SIGNATURE_LIST*) AllocateZeroPool (KekSigListSize);\r | |
723 | if (KekSigList == NULL) {\r | |
724 | Status = EFI_OUT_OF_RESOURCES;\r | |
725 | goto ON_EXIT;\r | |
726 | }\r | |
727 | \r | |
728 | //\r | |
729 | // Fill Certificate Database parameters.\r | |
730 | //\r | |
731 | KekSigList->SignatureListSize = (UINT32) KekSigListSize;\r | |
732 | KekSigList->SignatureHeaderSize = 0;\r | |
733 | KekSigList->SignatureSize = (UINT32) (sizeof(EFI_SIGNATURE_DATA) - 1 + X509DataSize);\r | |
734 | CopyGuid (&KekSigList->SignatureType, &gEfiCertX509Guid);\r | |
735 | \r | |
736 | KEKSigData = (EFI_SIGNATURE_DATA*) ((UINT8*) KekSigList + sizeof (EFI_SIGNATURE_LIST));\r | |
737 | CopyGuid (&KEKSigData->SignatureOwner, Private->SignatureGUID);\r | |
738 | CopyMem (KEKSigData->SignatureData, X509Data, X509DataSize);\r | |
739 | \r | |
740 | //\r | |
741 | // Check if KEK been already existed.\r | |
742 | // If true, use EFI_VARIABLE_APPEND_WRITE attribute to append the\r | |
743 | // new kek to original variable\r | |
744 | //\r | |
745 | Attr = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS\r | |
746 | | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS;\r | |
747 | Status = CreateTimeBasedPayload (&KekSigListSize, (UINT8**) &KekSigList);\r | |
748 | if (EFI_ERROR (Status)) {\r | |
749 | DEBUG ((EFI_D_ERROR, "Fail to create time-based data payload: %r", Status));\r | |
750 | goto ON_EXIT;\r | |
751 | }\r | |
752 | \r | |
753 | Status = gRT->GetVariable(\r | |
754 | EFI_KEY_EXCHANGE_KEY_NAME,\r | |
755 | &gEfiGlobalVariableGuid,\r | |
756 | NULL,\r | |
757 | &DataSize,\r | |
758 | NULL\r | |
759 | );\r | |
760 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
761 | Attr |= EFI_VARIABLE_APPEND_WRITE;\r | |
762 | } else if (Status != EFI_NOT_FOUND) {\r | |
763 | goto ON_EXIT;\r | |
764 | }\r | |
765 | \r | |
766 | Status = gRT->SetVariable(\r | |
767 | EFI_KEY_EXCHANGE_KEY_NAME,\r | |
768 | &gEfiGlobalVariableGuid,\r | |
769 | Attr,\r | |
770 | KekSigListSize,\r | |
771 | KekSigList\r | |
772 | );\r | |
773 | if (EFI_ERROR (Status)) {\r | |
774 | goto ON_EXIT;\r | |
775 | }\r | |
776 | \r | |
777 | ON_EXIT:\r | |
778 | \r | |
779 | CloseFile (Private->FileContext->FHandle);\r | |
780 | Private->FileContext->FileName = NULL;\r | |
781 | Private->FileContext->FHandle = NULL;\r | |
782 | \r | |
783 | if (Private->SignatureGUID != NULL) {\r | |
784 | FreePool (Private->SignatureGUID);\r | |
785 | Private->SignatureGUID = NULL;\r | |
786 | }\r | |
787 | \r | |
788 | if (KekSigList != NULL) {\r | |
789 | FreePool (KekSigList);\r | |
790 | }\r | |
791 | \r | |
792 | return Status;\r | |
793 | }\r | |
794 | \r | |
795 | /**\r | |
796 | Enroll new KEK into the System without PK's authentication.\r | |
797 | The SignatureOwner GUID will be Private->SignatureGUID.\r | |
798 | \r | |
799 | @param[in] PrivateData The module's private data.\r | |
800 | \r | |
801 | @retval EFI_SUCCESS New KEK enrolled successful.\r | |
802 | @retval EFI_INVALID_PARAMETER The parameter is invalid.\r | |
803 | @retval others Fail to enroll KEK data.\r | |
804 | \r | |
805 | **/\r | |
806 | EFI_STATUS\r | |
807 | EnrollKeyExchangeKey (\r | |
808 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *Private\r | |
809 | )\r | |
810 | {\r | |
811 | UINT16* FilePostFix;\r | |
812 | EFI_STATUS Status;\r | |
813 | UINTN NameLength;\r | |
814 | \r | |
815 | if ((Private->FileContext->FileName == NULL) || (Private->SignatureGUID == NULL)) {\r | |
816 | return EFI_INVALID_PARAMETER;\r | |
817 | }\r | |
818 | \r | |
819 | Status = SetSecureBootMode(CUSTOM_SECURE_BOOT_MODE);\r | |
820 | if (EFI_ERROR (Status)) {\r | |
821 | return Status;\r | |
822 | }\r | |
823 | \r | |
824 | //\r | |
825 | // Parse the file's postfix. Supports DER-encoded X509 certificate,\r | |
826 | // and .pbk as RSA public key file.\r | |
827 | //\r | |
828 | NameLength = StrLen (Private->FileContext->FileName);\r | |
829 | if (NameLength <= 4) {\r | |
830 | return EFI_INVALID_PARAMETER;\r | |
831 | }\r | |
832 | FilePostFix = Private->FileContext->FileName + NameLength - 4;\r | |
833 | if (IsDerEncodeCertificate(FilePostFix)) {\r | |
834 | return EnrollX509ToKek (Private);\r | |
835 | } else if (CompareMem (FilePostFix, L".pbk",4) == 0) {\r | |
836 | return EnrollRsa2048ToKek (Private);\r | |
837 | } else {\r | |
838 | return EFI_INVALID_PARAMETER;\r | |
839 | }\r | |
840 | }\r | |
841 | \r | |
842 | /**\r | |
843 | Enroll a new X509 certificate into Signature Database (DB or DBX or DBT) without\r | |
844 | KEK's authentication.\r | |
845 | \r | |
846 | @param[in] PrivateData The module's private data.\r | |
847 | @param[in] VariableName Variable name of signature database, must be\r | |
848 | EFI_IMAGE_SECURITY_DATABASE or EFI_IMAGE_SECURITY_DATABASE1.\r | |
849 | \r | |
850 | @retval EFI_SUCCESS New X509 is enrolled successfully.\r | |
851 | @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.\r | |
852 | \r | |
853 | **/\r | |
854 | EFI_STATUS\r | |
855 | EnrollX509toSigDB (\r | |
856 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *Private,\r | |
857 | IN CHAR16 *VariableName\r | |
858 | )\r | |
859 | {\r | |
860 | EFI_STATUS Status;\r | |
861 | UINTN X509DataSize;\r | |
862 | VOID *X509Data;\r | |
863 | EFI_SIGNATURE_LIST *SigDBCert;\r | |
864 | EFI_SIGNATURE_DATA *SigDBCertData;\r | |
865 | VOID *Data;\r | |
866 | UINTN DataSize;\r | |
867 | UINTN SigDBSize;\r | |
868 | UINT32 Attr;\r | |
869 | \r | |
870 | X509DataSize = 0;\r | |
871 | SigDBSize = 0;\r | |
872 | DataSize = 0;\r | |
873 | X509Data = NULL;\r | |
874 | SigDBCert = NULL;\r | |
875 | SigDBCertData = NULL;\r | |
876 | Data = NULL;\r | |
877 | \r | |
878 | Status = ReadFileContent (\r | |
879 | Private->FileContext->FHandle,\r | |
880 | &X509Data,\r | |
881 | &X509DataSize,\r | |
882 | 0\r | |
883 | );\r | |
884 | if (EFI_ERROR (Status)) {\r | |
885 | goto ON_EXIT;\r | |
886 | }\r | |
887 | ASSERT (X509Data != NULL);\r | |
888 | \r | |
889 | SigDBSize = sizeof(EFI_SIGNATURE_LIST) + sizeof(EFI_SIGNATURE_DATA) - 1 + X509DataSize;\r | |
890 | \r | |
891 | Data = AllocateZeroPool (SigDBSize);\r | |
892 | if (Data == NULL) {\r | |
893 | Status = EFI_OUT_OF_RESOURCES;\r | |
894 | goto ON_EXIT;\r | |
895 | }\r | |
896 | \r | |
897 | //\r | |
898 | // Fill Certificate Database parameters.\r | |
899 | //\r | |
900 | SigDBCert = (EFI_SIGNATURE_LIST*) Data;\r | |
901 | SigDBCert->SignatureListSize = (UINT32) SigDBSize;\r | |
902 | SigDBCert->SignatureHeaderSize = 0;\r | |
903 | SigDBCert->SignatureSize = (UINT32) (sizeof(EFI_SIGNATURE_DATA) - 1 + X509DataSize);\r | |
904 | CopyGuid (&SigDBCert->SignatureType, &gEfiCertX509Guid);\r | |
905 | \r | |
906 | SigDBCertData = (EFI_SIGNATURE_DATA*) ((UINT8* ) SigDBCert + sizeof (EFI_SIGNATURE_LIST));\r | |
907 | CopyGuid (&SigDBCertData->SignatureOwner, Private->SignatureGUID);\r | |
908 | CopyMem ((UINT8* ) (SigDBCertData->SignatureData), X509Data, X509DataSize);\r | |
909 | \r | |
910 | //\r | |
911 | // Check if signature database entry has been already existed.\r | |
912 | // If true, use EFI_VARIABLE_APPEND_WRITE attribute to append the\r | |
913 | // new signature data to original variable\r | |
914 | //\r | |
915 | Attr = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS\r | |
916 | | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS;\r | |
917 | Status = CreateTimeBasedPayload (&SigDBSize, (UINT8**) &Data);\r | |
918 | if (EFI_ERROR (Status)) {\r | |
919 | DEBUG ((EFI_D_ERROR, "Fail to create time-based data payload: %r", Status));\r | |
920 | goto ON_EXIT;\r | |
921 | }\r | |
922 | \r | |
923 | Status = gRT->GetVariable(\r | |
924 | VariableName,\r | |
925 | &gEfiImageSecurityDatabaseGuid,\r | |
926 | NULL,\r | |
927 | &DataSize,\r | |
928 | NULL\r | |
929 | );\r | |
930 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
931 | Attr |= EFI_VARIABLE_APPEND_WRITE;\r | |
932 | } else if (Status != EFI_NOT_FOUND) {\r | |
933 | goto ON_EXIT;\r | |
934 | }\r | |
935 | \r | |
936 | Status = gRT->SetVariable(\r | |
937 | VariableName,\r | |
938 | &gEfiImageSecurityDatabaseGuid,\r | |
939 | Attr,\r | |
940 | SigDBSize,\r | |
941 | Data\r | |
942 | );\r | |
943 | if (EFI_ERROR (Status)) {\r | |
944 | goto ON_EXIT;\r | |
945 | }\r | |
946 | \r | |
947 | ON_EXIT:\r | |
948 | \r | |
949 | CloseFile (Private->FileContext->FHandle);\r | |
950 | Private->FileContext->FileName = NULL;\r | |
951 | Private->FileContext->FHandle = NULL;\r | |
952 | \r | |
953 | if (Private->SignatureGUID != NULL) {\r | |
954 | FreePool (Private->SignatureGUID);\r | |
955 | Private->SignatureGUID = NULL;\r | |
956 | }\r | |
957 | \r | |
958 | if (Data != NULL) {\r | |
959 | FreePool (Data);\r | |
960 | }\r | |
961 | \r | |
962 | if (X509Data != NULL) {\r | |
963 | FreePool (X509Data);\r | |
964 | }\r | |
965 | \r | |
966 | return Status;\r | |
967 | }\r | |
968 | \r | |
969 | /**\r | |
970 | Check whether signature is in specified database.\r | |
971 | \r | |
972 | @param[in] VariableName Name of database variable that is searched in.\r | |
973 | @param[in] Signature Pointer to signature that is searched for.\r | |
974 | @param[in] SignatureSize Size of Signature.\r | |
975 | \r | |
976 | @return TRUE Found the signature in the variable database.\r | |
977 | @return FALSE Not found the signature in the variable database.\r | |
978 | \r | |
979 | **/\r | |
980 | BOOLEAN\r | |
981 | IsSignatureFoundInDatabase (\r | |
982 | IN CHAR16 *VariableName,\r | |
983 | IN UINT8 *Signature,\r | |
984 | IN UINTN SignatureSize\r | |
985 | )\r | |
986 | {\r | |
987 | EFI_STATUS Status;\r | |
988 | EFI_SIGNATURE_LIST *CertList;\r | |
989 | EFI_SIGNATURE_DATA *Cert;\r | |
990 | UINTN DataSize;\r | |
991 | UINT8 *Data;\r | |
992 | UINTN Index;\r | |
993 | UINTN CertCount;\r | |
994 | BOOLEAN IsFound;\r | |
995 | \r | |
996 | //\r | |
997 | // Read signature database variable.\r | |
998 | //\r | |
999 | IsFound = FALSE;\r | |
1000 | Data = NULL;\r | |
1001 | DataSize = 0;\r | |
1002 | Status = gRT->GetVariable (VariableName, &gEfiImageSecurityDatabaseGuid, NULL, &DataSize, NULL);\r | |
1003 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
1004 | return FALSE;\r | |
1005 | }\r | |
1006 | \r | |
1007 | Data = (UINT8 *) AllocateZeroPool (DataSize);\r | |
1008 | if (Data == NULL) {\r | |
1009 | return FALSE;\r | |
1010 | }\r | |
1011 | \r | |
1012 | Status = gRT->GetVariable (VariableName, &gEfiImageSecurityDatabaseGuid, NULL, &DataSize, Data);\r | |
1013 | if (EFI_ERROR (Status)) {\r | |
1014 | goto Done;\r | |
1015 | }\r | |
1016 | \r | |
1017 | //\r | |
1018 | // Enumerate all signature data in SigDB to check if executable's signature exists.\r | |
1019 | //\r | |
1020 | CertList = (EFI_SIGNATURE_LIST *) Data;\r | |
1021 | while ((DataSize > 0) && (DataSize >= CertList->SignatureListSize)) {\r | |
1022 | CertCount = (CertList->SignatureListSize - sizeof (EFI_SIGNATURE_LIST) - CertList->SignatureHeaderSize) / CertList->SignatureSize;\r | |
1023 | Cert = (EFI_SIGNATURE_DATA *) ((UINT8 *) CertList + sizeof (EFI_SIGNATURE_LIST) + CertList->SignatureHeaderSize);\r | |
1024 | if ((CertList->SignatureSize == sizeof(EFI_SIGNATURE_DATA) - 1 + SignatureSize) && (CompareGuid(&CertList->SignatureType, &gEfiCertX509Guid))) {\r | |
1025 | for (Index = 0; Index < CertCount; Index++) {\r | |
1026 | if (CompareMem (Cert->SignatureData, Signature, SignatureSize) == 0) {\r | |
1027 | //\r | |
1028 | // Find the signature in database.\r | |
1029 | //\r | |
1030 | IsFound = TRUE;\r | |
1031 | break;\r | |
1032 | }\r | |
1033 | Cert = (EFI_SIGNATURE_DATA *) ((UINT8 *) Cert + CertList->SignatureSize);\r | |
1034 | }\r | |
1035 | \r | |
1036 | if (IsFound) {\r | |
1037 | break;\r | |
1038 | }\r | |
1039 | }\r | |
1040 | \r | |
1041 | DataSize -= CertList->SignatureListSize;\r | |
1042 | CertList = (EFI_SIGNATURE_LIST *) ((UINT8 *) CertList + CertList->SignatureListSize);\r | |
1043 | }\r | |
1044 | \r | |
1045 | Done:\r | |
1046 | if (Data != NULL) {\r | |
1047 | FreePool (Data);\r | |
1048 | }\r | |
1049 | \r | |
1050 | return IsFound;\r | |
1051 | }\r | |
1052 | \r | |
1053 | /**\r | |
1054 | Calculate the hash of a certificate data with the specified hash algorithm.\r | |
1055 | \r | |
1056 | @param[in] CertData The certificate data to be hashed.\r | |
1057 | @param[in] CertSize The certificate size in bytes.\r | |
1058 | @param[in] HashAlg The specified hash algorithm.\r | |
1059 | @param[out] CertHash The output digest of the certificate\r | |
1060 | \r | |
1061 | @retval TRUE Successfully got the hash of the CertData.\r | |
1062 | @retval FALSE Failed to get the hash of CertData.\r | |
1063 | \r | |
1064 | **/\r | |
1065 | BOOLEAN\r | |
1066 | CalculateCertHash (\r | |
1067 | IN UINT8 *CertData,\r | |
1068 | IN UINTN CertSize,\r | |
1069 | IN UINT32 HashAlg,\r | |
1070 | OUT UINT8 *CertHash\r | |
1071 | )\r | |
1072 | {\r | |
1073 | BOOLEAN Status;\r | |
1074 | VOID *HashCtx;\r | |
1075 | UINTN CtxSize;\r | |
1076 | UINT8 *TBSCert;\r | |
1077 | UINTN TBSCertSize;\r | |
1078 | \r | |
1079 | HashCtx = NULL;\r | |
1080 | Status = FALSE;\r | |
1081 | \r | |
1082 | if (HashAlg >= HASHALG_MAX) {\r | |
1083 | return FALSE;\r | |
1084 | }\r | |
1085 | \r | |
1086 | //\r | |
1087 | // Retrieve the TBSCertificate for Hash Calculation.\r | |
1088 | //\r | |
1089 | if (!X509GetTBSCert (CertData, CertSize, &TBSCert, &TBSCertSize)) {\r | |
1090 | return FALSE;\r | |
1091 | }\r | |
1092 | \r | |
1093 | //\r | |
1094 | // 1. Initialize context of hash.\r | |
1095 | //\r | |
1096 | CtxSize = mHash[HashAlg].GetContextSize ();\r | |
1097 | HashCtx = AllocatePool (CtxSize);\r | |
1098 | ASSERT (HashCtx != NULL);\r | |
1099 | \r | |
1100 | //\r | |
1101 | // 2. Initialize a hash context.\r | |
1102 | //\r | |
1103 | Status = mHash[HashAlg].HashInit (HashCtx);\r | |
1104 | if (!Status) {\r | |
1105 | goto Done;\r | |
1106 | }\r | |
1107 | \r | |
1108 | //\r | |
1109 | // 3. Calculate the hash.\r | |
1110 | //\r | |
1111 | Status = mHash[HashAlg].HashUpdate (HashCtx, TBSCert, TBSCertSize);\r | |
1112 | if (!Status) {\r | |
1113 | goto Done;\r | |
1114 | }\r | |
1115 | \r | |
1116 | //\r | |
1117 | // 4. Get the hash result.\r | |
1118 | //\r | |
1119 | ZeroMem (CertHash, mHash[HashAlg].DigestLength);\r | |
1120 | Status = mHash[HashAlg].HashFinal (HashCtx, CertHash);\r | |
1121 | \r | |
1122 | Done:\r | |
1123 | if (HashCtx != NULL) {\r | |
1124 | FreePool (HashCtx);\r | |
1125 | }\r | |
1126 | \r | |
1127 | return Status;\r | |
1128 | }\r | |
1129 | \r | |
1130 | /**\r | |
1131 | Check whether the hash of an X.509 certificate is in forbidden database (DBX).\r | |
1132 | \r | |
1133 | @param[in] Certificate Pointer to X.509 Certificate that is searched for.\r | |
1134 | @param[in] CertSize Size of X.509 Certificate.\r | |
1135 | \r | |
1136 | @return TRUE Found the certificate hash in the forbidden database.\r | |
1137 | @return FALSE Certificate hash is Not found in the forbidden database.\r | |
1138 | \r | |
1139 | **/\r | |
1140 | BOOLEAN\r | |
1141 | IsCertHashFoundInDbx (\r | |
1142 | IN UINT8 *Certificate,\r | |
1143 | IN UINTN CertSize\r | |
1144 | )\r | |
1145 | {\r | |
1146 | BOOLEAN IsFound;\r | |
1147 | EFI_STATUS Status;\r | |
1148 | EFI_SIGNATURE_LIST *DbxList;\r | |
1149 | EFI_SIGNATURE_DATA *CertHash;\r | |
1150 | UINTN CertHashCount;\r | |
1151 | UINTN Index;\r | |
1152 | UINT32 HashAlg;\r | |
1153 | UINT8 CertDigest[MAX_DIGEST_SIZE];\r | |
1154 | UINT8 *DbxCertHash;\r | |
1155 | UINTN SiglistHeaderSize;\r | |
1156 | UINT8 *Data;\r | |
1157 | UINTN DataSize;\r | |
1158 | \r | |
1159 | IsFound = FALSE;\r | |
1160 | HashAlg = HASHALG_MAX;\r | |
1161 | Data = NULL;\r | |
1162 | \r | |
1163 | //\r | |
1164 | // Read signature database variable.\r | |
1165 | //\r | |
1166 | DataSize = 0;\r | |
1167 | Status = gRT->GetVariable (EFI_IMAGE_SECURITY_DATABASE1, &gEfiImageSecurityDatabaseGuid, NULL, &DataSize, NULL);\r | |
1168 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
1169 | return FALSE;\r | |
1170 | }\r | |
1171 | \r | |
1172 | Data = (UINT8 *) AllocateZeroPool (DataSize);\r | |
1173 | if (Data == NULL) {\r | |
1174 | return FALSE;\r | |
1175 | }\r | |
1176 | \r | |
1177 | Status = gRT->GetVariable (EFI_IMAGE_SECURITY_DATABASE1, &gEfiImageSecurityDatabaseGuid, NULL, &DataSize, Data);\r | |
1178 | if (EFI_ERROR (Status)) {\r | |
1179 | goto Done;\r | |
1180 | }\r | |
1181 | \r | |
1182 | //\r | |
1183 | // Check whether the certificate hash exists in the forbidden database.\r | |
1184 | //\r | |
1185 | DbxList = (EFI_SIGNATURE_LIST *) Data;\r | |
1186 | while ((DataSize > 0) && (DataSize >= DbxList->SignatureListSize)) {\r | |
1187 | //\r | |
1188 | // Determine Hash Algorithm of Certificate in the forbidden database.\r | |
1189 | //\r | |
1190 | if (CompareGuid (&DbxList->SignatureType, &gEfiCertX509Sha256Guid)) {\r | |
1191 | HashAlg = HASHALG_SHA256;\r | |
1192 | } else if (CompareGuid (&DbxList->SignatureType, &gEfiCertX509Sha384Guid)) {\r | |
1193 | HashAlg = HASHALG_SHA384;\r | |
1194 | } else if (CompareGuid (&DbxList->SignatureType, &gEfiCertX509Sha512Guid)) {\r | |
1195 | HashAlg = HASHALG_SHA512;\r | |
1196 | } else {\r | |
1197 | DataSize -= DbxList->SignatureListSize;\r | |
1198 | DbxList = (EFI_SIGNATURE_LIST *) ((UINT8 *) DbxList + DbxList->SignatureListSize);\r | |
1199 | continue;\r | |
1200 | }\r | |
1201 | \r | |
1202 | //\r | |
1203 | // Calculate the hash value of current db certificate for comparision.\r | |
1204 | //\r | |
1205 | if (!CalculateCertHash (Certificate, CertSize, HashAlg, CertDigest)) {\r | |
1206 | goto Done;\r | |
1207 | }\r | |
1208 | \r | |
1209 | SiglistHeaderSize = sizeof (EFI_SIGNATURE_LIST) + DbxList->SignatureHeaderSize;\r | |
1210 | CertHash = (EFI_SIGNATURE_DATA *) ((UINT8 *) DbxList + SiglistHeaderSize);\r | |
1211 | CertHashCount = (DbxList->SignatureListSize - SiglistHeaderSize) / DbxList->SignatureSize;\r | |
1212 | for (Index = 0; Index < CertHashCount; Index++) {\r | |
1213 | //\r | |
1214 | // Iterate each Signature Data Node within this CertList for verify.\r | |
1215 | //\r | |
1216 | DbxCertHash = CertHash->SignatureData;\r | |
1217 | if (CompareMem (DbxCertHash, CertDigest, mHash[HashAlg].DigestLength) == 0) {\r | |
1218 | //\r | |
1219 | // Hash of Certificate is found in forbidden database.\r | |
1220 | //\r | |
1221 | IsFound = TRUE;\r | |
1222 | goto Done;\r | |
1223 | }\r | |
1224 | CertHash = (EFI_SIGNATURE_DATA *) ((UINT8 *) CertHash + DbxList->SignatureSize);\r | |
1225 | }\r | |
1226 | \r | |
1227 | DataSize -= DbxList->SignatureListSize;\r | |
1228 | DbxList = (EFI_SIGNATURE_LIST *) ((UINT8 *) DbxList + DbxList->SignatureListSize);\r | |
1229 | }\r | |
1230 | \r | |
1231 | Done:\r | |
1232 | if (Data != NULL) {\r | |
1233 | FreePool (Data);\r | |
1234 | }\r | |
1235 | \r | |
1236 | return IsFound;\r | |
1237 | }\r | |
1238 | \r | |
1239 | /**\r | |
1240 | Check whether the signature list exists in given variable data.\r | |
1241 | \r | |
1242 | It searches the signature list for the ceritificate hash by CertType.\r | |
1243 | If the signature list is found, get the offset of Database for the\r | |
1244 | next hash of a certificate.\r | |
1245 | \r | |
1246 | @param[in] Database Variable data to save signature list.\r | |
1247 | @param[in] DatabaseSize Variable size.\r | |
1248 | @param[in] SignatureType The type of the signature.\r | |
1249 | @param[out] Offset The offset to save a new hash of certificate.\r | |
1250 | \r | |
1251 | @return TRUE The signature list is found in the forbidden database.\r | |
1252 | @return FALSE The signature list is not found in the forbidden database.\r | |
1253 | **/\r | |
1254 | BOOLEAN\r | |
1255 | GetSignaturelistOffset (\r | |
1256 | IN EFI_SIGNATURE_LIST *Database,\r | |
1257 | IN UINTN DatabaseSize,\r | |
1258 | IN EFI_GUID *SignatureType,\r | |
1259 | OUT UINTN *Offset\r | |
1260 | )\r | |
1261 | {\r | |
1262 | EFI_SIGNATURE_LIST *SigList;\r | |
1263 | UINTN SiglistSize;\r | |
1264 | \r | |
1265 | if ((Database == NULL) || (DatabaseSize == 0)) {\r | |
1266 | *Offset = 0;\r | |
1267 | return FALSE;\r | |
1268 | }\r | |
1269 | \r | |
1270 | SigList = Database;\r | |
1271 | SiglistSize = DatabaseSize;\r | |
1272 | while ((SiglistSize > 0) && (SiglistSize >= SigList->SignatureListSize)) {\r | |
1273 | if (CompareGuid (&SigList->SignatureType, SignatureType)) {\r | |
1274 | *Offset = DatabaseSize - SiglistSize;\r | |
1275 | return TRUE;\r | |
1276 | }\r | |
1277 | SiglistSize -= SigList->SignatureListSize;\r | |
1278 | SigList = (EFI_SIGNATURE_LIST *) ((UINT8 *) SigList + SigList->SignatureListSize);\r | |
1279 | }\r | |
1280 | *Offset = 0;\r | |
1281 | return FALSE;\r | |
1282 | }\r | |
1283 | \r | |
1284 | /**\r | |
1285 | Enroll a new X509 certificate hash into Signature Database (dbx) without\r | |
1286 | KEK's authentication.\r | |
1287 | \r | |
1288 | @param[in] PrivateData The module's private data.\r | |
1289 | @param[in] HashAlg The hash algorithm to enroll the certificate.\r | |
1290 | @param[in] RevocationDate The revocation date of the certificate.\r | |
1291 | @param[in] RevocationTime The revocation time of the certificate.\r | |
1292 | @param[in] AlwaysRevocation Indicate whether the certificate is always revoked.\r | |
1293 | \r | |
1294 | @retval EFI_SUCCESS New X509 is enrolled successfully.\r | |
1295 | @retval EFI_INVALID_PARAMETER The parameter is invalid.\r | |
1296 | @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.\r | |
1297 | \r | |
1298 | **/\r | |
1299 | EFI_STATUS\r | |
1300 | EnrollX509HashtoSigDB (\r | |
1301 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *Private,\r | |
1302 | IN UINT32 HashAlg,\r | |
1303 | IN EFI_HII_DATE *RevocationDate,\r | |
1304 | IN EFI_HII_TIME *RevocationTime,\r | |
1305 | IN BOOLEAN AlwaysRevocation\r | |
1306 | )\r | |
1307 | {\r | |
1308 | EFI_STATUS Status;\r | |
1309 | UINTN X509DataSize;\r | |
1310 | VOID *X509Data;\r | |
1311 | EFI_SIGNATURE_LIST *SignatureList;\r | |
1312 | UINTN SignatureListSize;\r | |
1313 | UINT8 *Data;\r | |
1314 | UINT8 *NewData;\r | |
1315 | UINTN DataSize;\r | |
1316 | UINTN DbSize;\r | |
1317 | UINT32 Attr;\r | |
1318 | EFI_SIGNATURE_DATA *SignatureData;\r | |
1319 | UINTN SignatureSize;\r | |
1320 | EFI_GUID SignatureType;\r | |
1321 | UINTN Offset;\r | |
1322 | UINT8 CertHash[MAX_DIGEST_SIZE];\r | |
1323 | UINT16* FilePostFix;\r | |
1324 | UINTN NameLength;\r | |
1325 | EFI_TIME *Time;\r | |
1326 | \r | |
1327 | X509DataSize = 0;\r | |
1328 | DbSize = 0;\r | |
1329 | X509Data = NULL;\r | |
1330 | SignatureData = NULL;\r | |
1331 | SignatureList = NULL;\r | |
1332 | Data = NULL;\r | |
1333 | NewData = NULL;\r | |
1334 | \r | |
1335 | if ((Private->FileContext->FileName == NULL) || (Private->FileContext->FHandle == NULL) || (Private->SignatureGUID == NULL)) {\r | |
1336 | return EFI_INVALID_PARAMETER;\r | |
1337 | }\r | |
1338 | \r | |
1339 | Status = SetSecureBootMode (CUSTOM_SECURE_BOOT_MODE);\r | |
1340 | if (EFI_ERROR (Status)) {\r | |
1341 | return Status;\r | |
1342 | }\r | |
1343 | \r | |
1344 | //\r | |
1345 | // Parse the file's postfix.\r | |
1346 | //\r | |
1347 | NameLength = StrLen (Private->FileContext->FileName);\r | |
1348 | if (NameLength <= 4) {\r | |
1349 | return EFI_INVALID_PARAMETER;\r | |
1350 | }\r | |
1351 | FilePostFix = Private->FileContext->FileName + NameLength - 4;\r | |
1352 | if (!IsDerEncodeCertificate(FilePostFix)) {\r | |
1353 | //\r | |
1354 | // Only supports DER-encoded X509 certificate.\r | |
1355 | //\r | |
1356 | return EFI_INVALID_PARAMETER;\r | |
1357 | }\r | |
1358 | \r | |
1359 | //\r | |
1360 | // Get the certificate from file and calculate its hash.\r | |
1361 | //\r | |
1362 | Status = ReadFileContent (\r | |
1363 | Private->FileContext->FHandle,\r | |
1364 | &X509Data,\r | |
1365 | &X509DataSize,\r | |
1366 | 0\r | |
1367 | );\r | |
1368 | if (EFI_ERROR (Status)) {\r | |
1369 | goto ON_EXIT;\r | |
1370 | }\r | |
1371 | ASSERT (X509Data != NULL);\r | |
1372 | \r | |
1373 | if (!CalculateCertHash (X509Data, X509DataSize, HashAlg, CertHash)) {\r | |
1374 | goto ON_EXIT;\r | |
1375 | }\r | |
1376 | \r | |
1377 | //\r | |
1378 | // Get the variable for enrollment.\r | |
1379 | //\r | |
1380 | DataSize = 0;\r | |
1381 | Status = gRT->GetVariable (EFI_IMAGE_SECURITY_DATABASE1, &gEfiImageSecurityDatabaseGuid, NULL, &DataSize, NULL);\r | |
1382 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
1383 | Data = (UINT8 *) AllocateZeroPool (DataSize);\r | |
1384 | if (Data == NULL) {\r | |
1385 | return EFI_OUT_OF_RESOURCES;\r | |
1386 | }\r | |
1387 | \r | |
1388 | Status = gRT->GetVariable (EFI_IMAGE_SECURITY_DATABASE1, &gEfiImageSecurityDatabaseGuid, NULL, &DataSize, Data);\r | |
1389 | if (EFI_ERROR (Status)) {\r | |
1390 | goto ON_EXIT;\r | |
1391 | }\r | |
1392 | }\r | |
1393 | \r | |
1394 | //\r | |
1395 | // Allocate memory for Signature and fill the Signature\r | |
1396 | //\r | |
1397 | SignatureSize = sizeof(EFI_SIGNATURE_DATA) - 1 + sizeof (EFI_TIME) + mHash[HashAlg].DigestLength;\r | |
1398 | SignatureData = (EFI_SIGNATURE_DATA *) AllocateZeroPool (SignatureSize);\r | |
1399 | if (SignatureData == NULL) {\r | |
1400 | return EFI_OUT_OF_RESOURCES;\r | |
1401 | }\r | |
1402 | CopyGuid (&SignatureData->SignatureOwner, Private->SignatureGUID);\r | |
1403 | CopyMem (SignatureData->SignatureData, CertHash, mHash[HashAlg].DigestLength);\r | |
1404 | \r | |
1405 | //\r | |
1406 | // Fill the time.\r | |
1407 | //\r | |
1408 | if (!AlwaysRevocation) {\r | |
1409 | Time = (EFI_TIME *)(&SignatureData->SignatureData + mHash[HashAlg].DigestLength);\r | |
1410 | Time->Year = RevocationDate->Year;\r | |
1411 | Time->Month = RevocationDate->Month;\r | |
1412 | Time->Day = RevocationDate->Day;\r | |
1413 | Time->Hour = RevocationTime->Hour;\r | |
1414 | Time->Minute = RevocationTime->Minute;\r | |
1415 | Time->Second = RevocationTime->Second;\r | |
1416 | }\r | |
1417 | \r | |
1418 | //\r | |
1419 | // Determine the GUID for certificate hash.\r | |
1420 | //\r | |
1421 | switch (HashAlg) {\r | |
1422 | case HASHALG_SHA256:\r | |
1423 | SignatureType = gEfiCertX509Sha256Guid;\r | |
1424 | break;\r | |
1425 | case HASHALG_SHA384:\r | |
1426 | SignatureType = gEfiCertX509Sha384Guid;\r | |
1427 | break;\r | |
1428 | case HASHALG_SHA512:\r | |
1429 | SignatureType = gEfiCertX509Sha512Guid;\r | |
1430 | break;\r | |
1431 | default:\r | |
1432 | return FALSE;\r | |
1433 | }\r | |
1434 | \r | |
1435 | //\r | |
1436 | // Add signature into the new variable data buffer\r | |
1437 | //\r | |
1438 | if (GetSignaturelistOffset((EFI_SIGNATURE_LIST *)Data, DataSize, &SignatureType, &Offset)) {\r | |
1439 | //\r | |
1440 | // Add the signature to the found signaturelist.\r | |
1441 | //\r | |
1442 | DbSize = DataSize + SignatureSize;\r | |
1443 | NewData = AllocateZeroPool (DbSize);\r | |
1444 | if (NewData == NULL) {\r | |
1445 | Status = EFI_OUT_OF_RESOURCES;\r | |
1446 | goto ON_EXIT;\r | |
1447 | }\r | |
1448 | \r | |
1449 | SignatureList = (EFI_SIGNATURE_LIST *)(Data + Offset);\r | |
1450 | SignatureListSize = (UINTN) ReadUnaligned32 ((UINT32 *)&SignatureList->SignatureListSize);\r | |
1451 | CopyMem (NewData, Data, Offset + SignatureListSize);\r | |
1452 | \r | |
1453 | SignatureList = (EFI_SIGNATURE_LIST *)(NewData + Offset);\r | |
1454 | WriteUnaligned32 ((UINT32 *) &SignatureList->SignatureListSize, (UINT32)(SignatureListSize + SignatureSize));\r | |
1455 | \r | |
1456 | Offset += SignatureListSize;\r | |
1457 | CopyMem (NewData + Offset, SignatureData, SignatureSize);\r | |
1458 | CopyMem (NewData + Offset + SignatureSize, Data + Offset, DataSize - Offset);\r | |
1459 | \r | |
1460 | FreePool (Data);\r | |
1461 | Data = NewData;\r | |
1462 | DataSize = DbSize;\r | |
1463 | } else {\r | |
1464 | //\r | |
1465 | // Create a new signaturelist, and add the signature into the signaturelist.\r | |
1466 | //\r | |
1467 | DbSize = DataSize + sizeof(EFI_SIGNATURE_LIST) + SignatureSize;\r | |
1468 | NewData = AllocateZeroPool (DbSize);\r | |
1469 | if (NewData == NULL) {\r | |
1470 | Status = EFI_OUT_OF_RESOURCES;\r | |
1471 | goto ON_EXIT;\r | |
1472 | }\r | |
1473 | //\r | |
1474 | // Fill Certificate Database parameters.\r | |
1475 | //\r | |
1476 | SignatureList = (EFI_SIGNATURE_LIST*) (NewData + DataSize);\r | |
1477 | SignatureListSize = sizeof(EFI_SIGNATURE_LIST) + SignatureSize;\r | |
1478 | WriteUnaligned32 ((UINT32 *) &SignatureList->SignatureListSize, (UINT32) SignatureListSize);\r | |
1479 | WriteUnaligned32 ((UINT32 *) &SignatureList->SignatureSize, (UINT32) SignatureSize);\r | |
1480 | CopyGuid (&SignatureList->SignatureType, &SignatureType);\r | |
1481 | CopyMem ((UINT8* ) SignatureList + sizeof (EFI_SIGNATURE_LIST), SignatureData, SignatureSize);\r | |
1482 | if ((DataSize != 0) && (Data != NULL)) {\r | |
1483 | CopyMem (NewData, Data, DataSize);\r | |
1484 | FreePool (Data);\r | |
1485 | }\r | |
1486 | Data = NewData;\r | |
1487 | DataSize = DbSize;\r | |
1488 | }\r | |
1489 | \r | |
1490 | Status = CreateTimeBasedPayload (&DataSize, (UINT8**) &Data);\r | |
1491 | if (EFI_ERROR (Status)) {\r | |
1492 | goto ON_EXIT;\r | |
1493 | }\r | |
1494 | \r | |
1495 | Attr = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS\r | |
1496 | | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS;\r | |
1497 | Status = gRT->SetVariable(\r | |
1498 | EFI_IMAGE_SECURITY_DATABASE1,\r | |
1499 | &gEfiImageSecurityDatabaseGuid,\r | |
1500 | Attr,\r | |
1501 | DataSize,\r | |
1502 | Data\r | |
1503 | );\r | |
1504 | if (EFI_ERROR (Status)) {\r | |
1505 | goto ON_EXIT;\r | |
1506 | }\r | |
1507 | \r | |
1508 | ON_EXIT:\r | |
1509 | CloseFile (Private->FileContext->FHandle);\r | |
1510 | Private->FileContext->FileName = NULL;\r | |
1511 | Private->FileContext->FHandle = NULL;\r | |
1512 | \r | |
1513 | if (Private->SignatureGUID != NULL) {\r | |
1514 | FreePool (Private->SignatureGUID);\r | |
1515 | Private->SignatureGUID = NULL;\r | |
1516 | }\r | |
1517 | \r | |
1518 | if (Data != NULL) {\r | |
1519 | FreePool (Data);\r | |
1520 | }\r | |
1521 | \r | |
1522 | if (SignatureData != NULL) {\r | |
1523 | FreePool (SignatureData);\r | |
1524 | }\r | |
1525 | \r | |
1526 | if (X509Data != NULL) {\r | |
1527 | FreePool (X509Data);\r | |
1528 | }\r | |
1529 | \r | |
1530 | return Status;\r | |
1531 | }\r | |
1532 | \r | |
1533 | /**\r | |
1534 | Check whether a certificate from a file exists in dbx.\r | |
1535 | \r | |
1536 | @param[in] PrivateData The module's private data.\r | |
1537 | @param[in] VariableName Variable name of signature database, must be\r | |
1538 | EFI_IMAGE_SECURITY_DATABASE1.\r | |
1539 | \r | |
1540 | @retval TRUE The X509 certificate is found in dbx successfully.\r | |
1541 | @retval FALSE The X509 certificate is not found in dbx.\r | |
1542 | **/\r | |
1543 | BOOLEAN\r | |
1544 | IsX509CertInDbx (\r | |
1545 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *Private,\r | |
1546 | IN CHAR16 *VariableName\r | |
1547 | )\r | |
1548 | {\r | |
1549 | EFI_STATUS Status;\r | |
1550 | UINTN X509DataSize;\r | |
1551 | VOID *X509Data;\r | |
1552 | BOOLEAN IsFound;\r | |
1553 | \r | |
1554 | //\r | |
1555 | // Read the certificate from file\r | |
1556 | //\r | |
1557 | X509DataSize = 0;\r | |
1558 | X509Data = NULL;\r | |
1559 | Status = ReadFileContent (\r | |
1560 | Private->FileContext->FHandle,\r | |
1561 | &X509Data,\r | |
1562 | &X509DataSize,\r | |
1563 | 0\r | |
1564 | );\r | |
1565 | if (EFI_ERROR (Status)) {\r | |
1566 | return FALSE;\r | |
1567 | }\r | |
1568 | \r | |
1569 | //\r | |
1570 | // Check the raw certificate.\r | |
1571 | //\r | |
1572 | IsFound = FALSE;\r | |
1573 | if (IsSignatureFoundInDatabase (EFI_IMAGE_SECURITY_DATABASE1, X509Data, X509DataSize)) {\r | |
1574 | IsFound = TRUE;\r | |
1575 | goto ON_EXIT;\r | |
1576 | }\r | |
1577 | \r | |
1578 | //\r | |
1579 | // Check the hash of certificate.\r | |
1580 | //\r | |
1581 | if (IsCertHashFoundInDbx (X509Data, X509DataSize)) {\r | |
1582 | IsFound = TRUE;\r | |
1583 | goto ON_EXIT;\r | |
1584 | }\r | |
1585 | \r | |
1586 | ON_EXIT:\r | |
1587 | if (X509Data != NULL) {\r | |
1588 | FreePool (X509Data);\r | |
1589 | }\r | |
1590 | \r | |
1591 | return IsFound;\r | |
1592 | }\r | |
1593 | \r | |
1594 | /**\r | |
1595 | Load PE/COFF image information into internal buffer and check its validity.\r | |
1596 | \r | |
1597 | @retval EFI_SUCCESS Successful\r | |
1598 | @retval EFI_UNSUPPORTED Invalid PE/COFF file\r | |
1599 | @retval EFI_ABORTED Serious error occurs, like file I/O error etc.\r | |
1600 | \r | |
1601 | **/\r | |
1602 | EFI_STATUS\r | |
1603 | LoadPeImage (\r | |
1604 | VOID\r | |
1605 | )\r | |
1606 | {\r | |
1607 | EFI_IMAGE_DOS_HEADER *DosHdr;\r | |
1608 | EFI_IMAGE_NT_HEADERS32 *NtHeader32;\r | |
1609 | EFI_IMAGE_NT_HEADERS64 *NtHeader64;\r | |
1610 | \r | |
1611 | NtHeader32 = NULL;\r | |
1612 | NtHeader64 = NULL;\r | |
1613 | //\r | |
1614 | // Read the Dos header\r | |
1615 | //\r | |
1616 | DosHdr = (EFI_IMAGE_DOS_HEADER*)(mImageBase);\r | |
1617 | if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE)\r | |
1618 | {\r | |
1619 | //\r | |
1620 | // DOS image header is present,\r | |
1621 | // So read the PE header after the DOS image header\r | |
1622 | //\r | |
1623 | mPeCoffHeaderOffset = DosHdr->e_lfanew;\r | |
1624 | }\r | |
1625 | else\r | |
1626 | {\r | |
1627 | mPeCoffHeaderOffset = 0;\r | |
1628 | }\r | |
1629 | \r | |
1630 | //\r | |
1631 | // Read PE header and check the signature validity and machine compatibility\r | |
1632 | //\r | |
1633 | NtHeader32 = (EFI_IMAGE_NT_HEADERS32*) (mImageBase + mPeCoffHeaderOffset);\r | |
1634 | if (NtHeader32->Signature != EFI_IMAGE_NT_SIGNATURE)\r | |
1635 | {\r | |
1636 | return EFI_UNSUPPORTED;\r | |
1637 | }\r | |
1638 | \r | |
1639 | mNtHeader.Pe32 = NtHeader32;\r | |
1640 | \r | |
1641 | //\r | |
1642 | // Check the architecture field of PE header and get the Certificate Data Directory data\r | |
1643 | // Note the size of FileHeader field is constant for both IA32 and X64 arch\r | |
1644 | //\r | |
1645 | if ((NtHeader32->FileHeader.Machine == EFI_IMAGE_MACHINE_IA32)\r | |
1646 | || (NtHeader32->FileHeader.Machine == EFI_IMAGE_MACHINE_EBC)) {\r | |
1647 | //\r | |
1648 | // IA-32 Architecture\r | |
1649 | //\r | |
1650 | mImageType = ImageType_IA32;\r | |
1651 | mSecDataDir = (EFI_IMAGE_SECURITY_DATA_DIRECTORY*) &(NtHeader32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY]);\r | |
1652 | }\r | |
1653 | else if ((NtHeader32->FileHeader.Machine == EFI_IMAGE_MACHINE_IA64)\r | |
1654 | || (NtHeader32->FileHeader.Machine == EFI_IMAGE_MACHINE_X64)) {\r | |
1655 | //\r | |
1656 | // 64-bits Architecture\r | |
1657 | //\r | |
1658 | mImageType = ImageType_X64;\r | |
1659 | NtHeader64 = (EFI_IMAGE_NT_HEADERS64 *) (mImageBase + mPeCoffHeaderOffset);\r | |
1660 | mSecDataDir = (EFI_IMAGE_SECURITY_DATA_DIRECTORY*) &(NtHeader64->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY]);\r | |
1661 | } else {\r | |
1662 | return EFI_UNSUPPORTED;\r | |
1663 | }\r | |
1664 | \r | |
1665 | return EFI_SUCCESS;\r | |
1666 | }\r | |
1667 | \r | |
1668 | /**\r | |
1669 | Calculate hash of Pe/Coff image based on the authenticode image hashing in\r | |
1670 | PE/COFF Specification 8.0 Appendix A\r | |
1671 | \r | |
1672 | @param[in] HashAlg Hash algorithm type.\r | |
1673 | \r | |
1674 | @retval TRUE Successfully hash image.\r | |
1675 | @retval FALSE Fail in hash image.\r | |
1676 | \r | |
1677 | **/\r | |
1678 | BOOLEAN\r | |
1679 | HashPeImage (\r | |
1680 | IN UINT32 HashAlg\r | |
1681 | )\r | |
1682 | {\r | |
1683 | BOOLEAN Status;\r | |
1684 | UINT16 Magic;\r | |
1685 | EFI_IMAGE_SECTION_HEADER *Section;\r | |
1686 | VOID *HashCtx;\r | |
1687 | UINTN CtxSize;\r | |
1688 | UINT8 *HashBase;\r | |
1689 | UINTN HashSize;\r | |
1690 | UINTN SumOfBytesHashed;\r | |
1691 | EFI_IMAGE_SECTION_HEADER *SectionHeader;\r | |
1692 | UINTN Index;\r | |
1693 | UINTN Pos;\r | |
1694 | \r | |
1695 | HashCtx = NULL;\r | |
1696 | SectionHeader = NULL;\r | |
1697 | Status = FALSE;\r | |
1698 | \r | |
1699 | if ((HashAlg != HASHALG_SHA1) && (HashAlg != HASHALG_SHA256)) {\r | |
1700 | return FALSE;\r | |
1701 | }\r | |
1702 | \r | |
1703 | //\r | |
1704 | // Initialize context of hash.\r | |
1705 | //\r | |
1706 | ZeroMem (mImageDigest, MAX_DIGEST_SIZE);\r | |
1707 | \r | |
1708 | if (HashAlg == HASHALG_SHA1) {\r | |
1709 | mImageDigestSize = SHA1_DIGEST_SIZE;\r | |
1710 | mCertType = gEfiCertSha1Guid;\r | |
1711 | } else if (HashAlg == HASHALG_SHA256) {\r | |
1712 | mImageDigestSize = SHA256_DIGEST_SIZE;\r | |
1713 | mCertType = gEfiCertSha256Guid;\r | |
1714 | }\r | |
1715 | \r | |
1716 | CtxSize = mHash[HashAlg].GetContextSize();\r | |
1717 | \r | |
1718 | HashCtx = AllocatePool (CtxSize);\r | |
1719 | ASSERT (HashCtx != NULL);\r | |
1720 | \r | |
1721 | // 1. Load the image header into memory.\r | |
1722 | \r | |
1723 | // 2. Initialize a SHA hash context.\r | |
1724 | Status = mHash[HashAlg].HashInit(HashCtx);\r | |
1725 | if (!Status) {\r | |
1726 | goto Done;\r | |
1727 | }\r | |
1728 | //\r | |
1729 | // Measuring PE/COFF Image Header;\r | |
1730 | // But CheckSum field and SECURITY data directory (certificate) are excluded\r | |
1731 | //\r | |
1732 | if (mNtHeader.Pe32->FileHeader.Machine == IMAGE_FILE_MACHINE_IA64 && mNtHeader.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
1733 | //\r | |
1734 | // NOTE: Some versions of Linux ELILO for Itanium have an incorrect magic value\r | |
1735 | // in the PE/COFF Header. If the MachineType is Itanium(IA64) and the\r | |
1736 | // Magic value in the OptionalHeader is EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC\r | |
1737 | // then override the magic value to EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC\r | |
1738 | //\r | |
1739 | Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;\r | |
1740 | } else {\r | |
1741 | //\r | |
1742 | // Get the magic value from the PE/COFF Optional Header\r | |
1743 | //\r | |
1744 | Magic = mNtHeader.Pe32->OptionalHeader.Magic;\r | |
1745 | }\r | |
1746 | \r | |
1747 | //\r | |
1748 | // 3. Calculate the distance from the base of the image header to the image checksum address.\r | |
1749 | // 4. Hash the image header from its base to beginning of the image checksum.\r | |
1750 | //\r | |
1751 | HashBase = mImageBase;\r | |
1752 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
1753 | //\r | |
1754 | // Use PE32 offset.\r | |
1755 | //\r | |
1756 | HashSize = (UINTN) ((UINT8 *) (&mNtHeader.Pe32->OptionalHeader.CheckSum) - HashBase);\r | |
1757 | } else {\r | |
1758 | //\r | |
1759 | // Use PE32+ offset.\r | |
1760 | //\r | |
1761 | HashSize = (UINTN) ((UINT8 *) (&mNtHeader.Pe32Plus->OptionalHeader.CheckSum) - HashBase);\r | |
1762 | }\r | |
1763 | \r | |
1764 | Status = mHash[HashAlg].HashUpdate(HashCtx, HashBase, HashSize);\r | |
1765 | if (!Status) {\r | |
1766 | goto Done;\r | |
1767 | }\r | |
1768 | //\r | |
1769 | // 5. Skip over the image checksum (it occupies a single ULONG).\r | |
1770 | // 6. Get the address of the beginning of the Cert Directory.\r | |
1771 | // 7. Hash everything from the end of the checksum to the start of the Cert Directory.\r | |
1772 | //\r | |
1773 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
1774 | //\r | |
1775 | // Use PE32 offset.\r | |
1776 | //\r | |
1777 | HashBase = (UINT8 *) &mNtHeader.Pe32->OptionalHeader.CheckSum + sizeof (UINT32);\r | |
1778 | HashSize = (UINTN) ((UINT8 *) (&mNtHeader.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY]) - HashBase);\r | |
1779 | } else {\r | |
1780 | //\r | |
1781 | // Use PE32+ offset.\r | |
1782 | //\r | |
1783 | HashBase = (UINT8 *) &mNtHeader.Pe32Plus->OptionalHeader.CheckSum + sizeof (UINT32);\r | |
1784 | HashSize = (UINTN) ((UINT8 *) (&mNtHeader.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY]) - HashBase);\r | |
1785 | }\r | |
1786 | \r | |
1787 | Status = mHash[HashAlg].HashUpdate(HashCtx, HashBase, HashSize);\r | |
1788 | if (!Status) {\r | |
1789 | goto Done;\r | |
1790 | }\r | |
1791 | //\r | |
1792 | // 8. Skip over the Cert Directory. (It is sizeof(IMAGE_DATA_DIRECTORY) bytes.)\r | |
1793 | // 9. Hash everything from the end of the Cert Directory to the end of image header.\r | |
1794 | //\r | |
1795 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
1796 | //\r | |
1797 | // Use PE32 offset\r | |
1798 | //\r | |
1799 | HashBase = (UINT8 *) &mNtHeader.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY + 1];\r | |
1800 | HashSize = mNtHeader.Pe32->OptionalHeader.SizeOfHeaders - (UINTN) ((UINT8 *) (&mNtHeader.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY + 1]) - mImageBase);\r | |
1801 | } else {\r | |
1802 | //\r | |
1803 | // Use PE32+ offset.\r | |
1804 | //\r | |
1805 | HashBase = (UINT8 *) &mNtHeader.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY + 1];\r | |
1806 | HashSize = mNtHeader.Pe32Plus->OptionalHeader.SizeOfHeaders - (UINTN) ((UINT8 *) (&mNtHeader.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY + 1]) - mImageBase);\r | |
1807 | }\r | |
1808 | \r | |
1809 | Status = mHash[HashAlg].HashUpdate(HashCtx, HashBase, HashSize);\r | |
1810 | if (!Status) {\r | |
1811 | goto Done;\r | |
1812 | }\r | |
1813 | //\r | |
1814 | // 10. Set the SUM_OF_BYTES_HASHED to the size of the header.\r | |
1815 | //\r | |
1816 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
1817 | //\r | |
1818 | // Use PE32 offset.\r | |
1819 | //\r | |
1820 | SumOfBytesHashed = mNtHeader.Pe32->OptionalHeader.SizeOfHeaders;\r | |
1821 | } else {\r | |
1822 | //\r | |
1823 | // Use PE32+ offset\r | |
1824 | //\r | |
1825 | SumOfBytesHashed = mNtHeader.Pe32Plus->OptionalHeader.SizeOfHeaders;\r | |
1826 | }\r | |
1827 | \r | |
1828 | //\r | |
1829 | // 11. Build a temporary table of pointers to all the IMAGE_SECTION_HEADER\r | |
1830 | // structures in the image. The 'NumberOfSections' field of the image\r | |
1831 | // header indicates how big the table should be. Do not include any\r | |
1832 | // IMAGE_SECTION_HEADERs in the table whose 'SizeOfRawData' field is zero.\r | |
1833 | //\r | |
1834 | SectionHeader = (EFI_IMAGE_SECTION_HEADER *) AllocateZeroPool (sizeof (EFI_IMAGE_SECTION_HEADER) * mNtHeader.Pe32->FileHeader.NumberOfSections);\r | |
1835 | ASSERT (SectionHeader != NULL);\r | |
1836 | //\r | |
1837 | // 12. Using the 'PointerToRawData' in the referenced section headers as\r | |
1838 | // a key, arrange the elements in the table in ascending order. In other\r | |
1839 | // words, sort the section headers according to the disk-file offset of\r | |
1840 | // the section.\r | |
1841 | //\r | |
1842 | Section = (EFI_IMAGE_SECTION_HEADER *) (\r | |
1843 | mImageBase +\r | |
1844 | mPeCoffHeaderOffset +\r | |
1845 | sizeof (UINT32) +\r | |
1846 | sizeof (EFI_IMAGE_FILE_HEADER) +\r | |
1847 | mNtHeader.Pe32->FileHeader.SizeOfOptionalHeader\r | |
1848 | );\r | |
1849 | for (Index = 0; Index < mNtHeader.Pe32->FileHeader.NumberOfSections; Index++) {\r | |
1850 | Pos = Index;\r | |
1851 | while ((Pos > 0) && (Section->PointerToRawData < SectionHeader[Pos - 1].PointerToRawData)) {\r | |
1852 | CopyMem (&SectionHeader[Pos], &SectionHeader[Pos - 1], sizeof (EFI_IMAGE_SECTION_HEADER));\r | |
1853 | Pos--;\r | |
1854 | }\r | |
1855 | CopyMem (&SectionHeader[Pos], Section, sizeof (EFI_IMAGE_SECTION_HEADER));\r | |
1856 | Section += 1;\r | |
1857 | }\r | |
1858 | \r | |
1859 | //\r | |
1860 | // 13. Walk through the sorted table, bring the corresponding section\r | |
1861 | // into memory, and hash the entire section (using the 'SizeOfRawData'\r | |
1862 | // field in the section header to determine the amount of data to hash).\r | |
1863 | // 14. Add the section's 'SizeOfRawData' to SUM_OF_BYTES_HASHED .\r | |
1864 | // 15. Repeat steps 13 and 14 for all the sections in the sorted table.\r | |
1865 | //\r | |
1866 | for (Index = 0; Index < mNtHeader.Pe32->FileHeader.NumberOfSections; Index++) {\r | |
1867 | Section = &SectionHeader[Index];\r | |
1868 | if (Section->SizeOfRawData == 0) {\r | |
1869 | continue;\r | |
1870 | }\r | |
1871 | HashBase = mImageBase + Section->PointerToRawData;\r | |
1872 | HashSize = (UINTN) Section->SizeOfRawData;\r | |
1873 | \r | |
1874 | Status = mHash[HashAlg].HashUpdate(HashCtx, HashBase, HashSize);\r | |
1875 | if (!Status) {\r | |
1876 | goto Done;\r | |
1877 | }\r | |
1878 | \r | |
1879 | SumOfBytesHashed += HashSize;\r | |
1880 | }\r | |
1881 | \r | |
1882 | //\r | |
1883 | // 16. If the file size is greater than SUM_OF_BYTES_HASHED, there is extra\r | |
1884 | // data in the file that needs to be added to the hash. This data begins\r | |
1885 | // at file offset SUM_OF_BYTES_HASHED and its length is:\r | |
1886 | // FileSize - (CertDirectory->Size)\r | |
1887 | //\r | |
1888 | if (mImageSize > SumOfBytesHashed) {\r | |
1889 | HashBase = mImageBase + SumOfBytesHashed;\r | |
1890 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
1891 | //\r | |
1892 | // Use PE32 offset.\r | |
1893 | //\r | |
1894 | HashSize = (UINTN)(\r | |
1895 | mImageSize -\r | |
1896 | mNtHeader.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size -\r | |
1897 | SumOfBytesHashed);\r | |
1898 | } else {\r | |
1899 | //\r | |
1900 | // Use PE32+ offset.\r | |
1901 | //\r | |
1902 | HashSize = (UINTN)(\r | |
1903 | mImageSize -\r | |
1904 | mNtHeader.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size -\r | |
1905 | SumOfBytesHashed);\r | |
1906 | }\r | |
1907 | \r | |
1908 | Status = mHash[HashAlg].HashUpdate(HashCtx, HashBase, HashSize);\r | |
1909 | if (!Status) {\r | |
1910 | goto Done;\r | |
1911 | }\r | |
1912 | }\r | |
1913 | \r | |
1914 | Status = mHash[HashAlg].HashFinal(HashCtx, mImageDigest);\r | |
1915 | \r | |
1916 | Done:\r | |
1917 | if (HashCtx != NULL) {\r | |
1918 | FreePool (HashCtx);\r | |
1919 | }\r | |
1920 | if (SectionHeader != NULL) {\r | |
1921 | FreePool (SectionHeader);\r | |
1922 | }\r | |
1923 | return Status;\r | |
1924 | }\r | |
1925 | \r | |
1926 | /**\r | |
1927 | Recognize the Hash algorithm in PE/COFF Authenticode and caculate hash of\r | |
1928 | Pe/Coff image based on the authenticated image hashing in PE/COFF Specification\r | |
1929 | 8.0 Appendix A\r | |
1930 | \r | |
1931 | @retval EFI_UNSUPPORTED Hash algorithm is not supported.\r | |
1932 | @retval EFI_SUCCESS Hash successfully.\r | |
1933 | \r | |
1934 | **/\r | |
1935 | EFI_STATUS\r | |
1936 | HashPeImageByType (\r | |
1937 | VOID\r | |
1938 | )\r | |
1939 | {\r | |
1940 | UINT8 Index;\r | |
1941 | WIN_CERTIFICATE_EFI_PKCS *PkcsCertData;\r | |
1942 | \r | |
1943 | PkcsCertData = (WIN_CERTIFICATE_EFI_PKCS *) (mImageBase + mSecDataDir->Offset);\r | |
1944 | \r | |
1945 | for (Index = 0; Index < HASHALG_MAX; Index++) {\r | |
1946 | //\r | |
1947 | // Check the Hash algorithm in PE/COFF Authenticode.\r | |
1948 | // According to PKCS#7 Definition:\r | |
1949 | // SignedData ::= SEQUENCE {\r | |
1950 | // version Version,\r | |
1951 | // digestAlgorithms DigestAlgorithmIdentifiers,\r | |
1952 | // contentInfo ContentInfo,\r | |
1953 | // .... }\r | |
1954 | // The DigestAlgorithmIdentifiers can be used to determine the hash algorithm in PE/COFF hashing\r | |
1955 | // This field has the fixed offset (+32) in final Authenticode ASN.1 data.\r | |
1956 | // Fixed offset (+32) is calculated based on two bytes of length encoding.\r | |
1957 | //\r | |
1958 | if ((*(PkcsCertData->CertData + 1) & TWO_BYTE_ENCODE) != TWO_BYTE_ENCODE) {\r | |
1959 | //\r | |
1960 | // Only support two bytes of Long Form of Length Encoding.\r | |
1961 | //\r | |
1962 | continue;\r | |
1963 | }\r | |
1964 | \r | |
1965 | //\r | |
1966 | if (CompareMem (PkcsCertData->CertData + 32, mHash[Index].OidValue, mHash[Index].OidLength) == 0) {\r | |
1967 | break;\r | |
1968 | }\r | |
1969 | }\r | |
1970 | \r | |
1971 | if (Index == HASHALG_MAX) {\r | |
1972 | return EFI_UNSUPPORTED;\r | |
1973 | }\r | |
1974 | \r | |
1975 | //\r | |
1976 | // HASH PE Image based on Hash algorithm in PE/COFF Authenticode.\r | |
1977 | //\r | |
1978 | if (!HashPeImage(Index)) {\r | |
1979 | return EFI_UNSUPPORTED;\r | |
1980 | }\r | |
1981 | \r | |
1982 | return EFI_SUCCESS;\r | |
1983 | }\r | |
1984 | \r | |
1985 | /**\r | |
1986 | Enroll a new executable's signature into Signature Database.\r | |
1987 | \r | |
1988 | @param[in] PrivateData The module's private data.\r | |
1989 | @param[in] VariableName Variable name of signature database, must be\r | |
1990 | EFI_IMAGE_SECURITY_DATABASE, EFI_IMAGE_SECURITY_DATABASE1\r | |
1991 | or EFI_IMAGE_SECURITY_DATABASE2.\r | |
1992 | \r | |
1993 | @retval EFI_SUCCESS New signature is enrolled successfully.\r | |
1994 | @retval EFI_INVALID_PARAMETER The parameter is invalid.\r | |
1995 | @retval EFI_UNSUPPORTED Unsupported command.\r | |
1996 | @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.\r | |
1997 | \r | |
1998 | **/\r | |
1999 | EFI_STATUS\r | |
2000 | EnrollImageSignatureToSigDB (\r | |
2001 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *Private,\r | |
2002 | IN CHAR16 *VariableName\r | |
2003 | )\r | |
2004 | {\r | |
2005 | EFI_STATUS Status;\r | |
2006 | EFI_SIGNATURE_LIST *SigDBCert;\r | |
2007 | EFI_SIGNATURE_DATA *SigDBCertData;\r | |
2008 | VOID *Data;\r | |
2009 | UINTN DataSize;\r | |
2010 | UINTN SigDBSize;\r | |
2011 | UINT32 Attr;\r | |
2012 | WIN_CERTIFICATE_UEFI_GUID *GuidCertData;\r | |
2013 | \r | |
2014 | Data = NULL;\r | |
2015 | GuidCertData = NULL;\r | |
2016 | \r | |
2017 | if (StrCmp (VariableName, EFI_IMAGE_SECURITY_DATABASE2) == 0) {\r | |
2018 | return EFI_UNSUPPORTED;\r | |
2019 | }\r | |
2020 | \r | |
2021 | //\r | |
2022 | // Form the SigDB certificate list.\r | |
2023 | // Format the data item into EFI_SIGNATURE_LIST type.\r | |
2024 | //\r | |
2025 | // We need to parse executable's signature data from specified signed executable file.\r | |
2026 | // In current implementation, we simply trust the pass-in signed executable file.\r | |
2027 | // In reality, it's OS's responsibility to verify the signed executable file.\r | |
2028 | //\r | |
2029 | \r | |
2030 | //\r | |
2031 | // Read the whole file content\r | |
2032 | //\r | |
2033 | Status = ReadFileContent(\r | |
2034 | Private->FileContext->FHandle,\r | |
2035 | (VOID **) &mImageBase,\r | |
2036 | &mImageSize,\r | |
2037 | 0\r | |
2038 | );\r | |
2039 | if (EFI_ERROR (Status)) {\r | |
2040 | goto ON_EXIT;\r | |
2041 | }\r | |
2042 | ASSERT (mImageBase != NULL);\r | |
2043 | \r | |
2044 | Status = LoadPeImage ();\r | |
2045 | if (EFI_ERROR (Status)) {\r | |
2046 | goto ON_EXIT;\r | |
2047 | }\r | |
2048 | \r | |
2049 | if (mSecDataDir->SizeOfCert == 0) {\r | |
2050 | if (!HashPeImage (HASHALG_SHA256)) {\r | |
2051 | Status = EFI_SECURITY_VIOLATION;\r | |
2052 | goto ON_EXIT;\r | |
2053 | }\r | |
2054 | } else {\r | |
2055 | \r | |
2056 | //\r | |
2057 | // Read the certificate data\r | |
2058 | //\r | |
2059 | mCertificate = (WIN_CERTIFICATE *)(mImageBase + mSecDataDir->Offset);\r | |
2060 | \r | |
2061 | if (mCertificate->wCertificateType == WIN_CERT_TYPE_EFI_GUID) {\r | |
2062 | GuidCertData = (WIN_CERTIFICATE_UEFI_GUID*) mCertificate;\r | |
2063 | if (CompareMem (&GuidCertData->CertType, &gEfiCertTypeRsa2048Sha256Guid, sizeof(EFI_GUID)) != 0) {\r | |
2064 | Status = EFI_ABORTED;\r | |
2065 | goto ON_EXIT;\r | |
2066 | }\r | |
2067 | \r | |
2068 | if (!HashPeImage (HASHALG_SHA256)) {\r | |
2069 | Status = EFI_ABORTED;\r | |
2070 | goto ON_EXIT;;\r | |
2071 | }\r | |
2072 | \r | |
2073 | } else if (mCertificate->wCertificateType == WIN_CERT_TYPE_PKCS_SIGNED_DATA) {\r | |
2074 | \r | |
2075 | Status = HashPeImageByType ();\r | |
2076 | if (EFI_ERROR (Status)) {\r | |
2077 | goto ON_EXIT;;\r | |
2078 | }\r | |
2079 | } else {\r | |
2080 | Status = EFI_ABORTED;\r | |
2081 | goto ON_EXIT;\r | |
2082 | }\r | |
2083 | }\r | |
2084 | \r | |
2085 | //\r | |
2086 | // Create a new SigDB entry.\r | |
2087 | //\r | |
2088 | SigDBSize = sizeof(EFI_SIGNATURE_LIST)\r | |
2089 | + sizeof(EFI_SIGNATURE_DATA) - 1\r | |
2090 | + (UINT32) mImageDigestSize;\r | |
2091 | \r | |
2092 | Data = (UINT8*) AllocateZeroPool (SigDBSize);\r | |
2093 | if (Data == NULL) {\r | |
2094 | Status = EFI_OUT_OF_RESOURCES;\r | |
2095 | goto ON_EXIT;\r | |
2096 | }\r | |
2097 | \r | |
2098 | //\r | |
2099 | // Adjust the Certificate Database parameters.\r | |
2100 | //\r | |
2101 | SigDBCert = (EFI_SIGNATURE_LIST*) Data;\r | |
2102 | SigDBCert->SignatureListSize = (UINT32) SigDBSize;\r | |
2103 | SigDBCert->SignatureHeaderSize = 0;\r | |
2104 | SigDBCert->SignatureSize = sizeof(EFI_SIGNATURE_DATA) - 1 + (UINT32) mImageDigestSize;\r | |
2105 | CopyGuid (&SigDBCert->SignatureType, &mCertType);\r | |
2106 | \r | |
2107 | SigDBCertData = (EFI_SIGNATURE_DATA*)((UINT8*)SigDBCert + sizeof(EFI_SIGNATURE_LIST));\r | |
2108 | CopyGuid (&SigDBCertData->SignatureOwner, Private->SignatureGUID);\r | |
2109 | CopyMem (SigDBCertData->SignatureData, mImageDigest, mImageDigestSize);\r | |
2110 | \r | |
2111 | Attr = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS\r | |
2112 | | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS;\r | |
2113 | Status = CreateTimeBasedPayload (&SigDBSize, (UINT8**) &Data);\r | |
2114 | if (EFI_ERROR (Status)) {\r | |
2115 | DEBUG ((EFI_D_ERROR, "Fail to create time-based data payload: %r", Status));\r | |
2116 | goto ON_EXIT;\r | |
2117 | }\r | |
2118 | \r | |
2119 | //\r | |
2120 | // Check if SigDB variable has been already existed.\r | |
2121 | // If true, use EFI_VARIABLE_APPEND_WRITE attribute to append the\r | |
2122 | // new signature data to original variable\r | |
2123 | //\r | |
2124 | DataSize = 0;\r | |
2125 | Status = gRT->GetVariable(\r | |
2126 | VariableName,\r | |
2127 | &gEfiImageSecurityDatabaseGuid,\r | |
2128 | NULL,\r | |
2129 | &DataSize,\r | |
2130 | NULL\r | |
2131 | );\r | |
2132 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
2133 | Attr |= EFI_VARIABLE_APPEND_WRITE;\r | |
2134 | } else if (Status != EFI_NOT_FOUND) {\r | |
2135 | goto ON_EXIT;\r | |
2136 | }\r | |
2137 | \r | |
2138 | //\r | |
2139 | // Enroll the variable.\r | |
2140 | //\r | |
2141 | Status = gRT->SetVariable(\r | |
2142 | VariableName,\r | |
2143 | &gEfiImageSecurityDatabaseGuid,\r | |
2144 | Attr,\r | |
2145 | SigDBSize,\r | |
2146 | Data\r | |
2147 | );\r | |
2148 | if (EFI_ERROR (Status)) {\r | |
2149 | goto ON_EXIT;\r | |
2150 | }\r | |
2151 | \r | |
2152 | ON_EXIT:\r | |
2153 | \r | |
2154 | CloseFile (Private->FileContext->FHandle);\r | |
2155 | Private->FileContext->FHandle = NULL;\r | |
2156 | Private->FileContext->FileName = NULL;\r | |
2157 | \r | |
2158 | if (Private->SignatureGUID != NULL) {\r | |
2159 | FreePool (Private->SignatureGUID);\r | |
2160 | Private->SignatureGUID = NULL;\r | |
2161 | }\r | |
2162 | \r | |
2163 | if (Data != NULL) {\r | |
2164 | FreePool (Data);\r | |
2165 | }\r | |
2166 | \r | |
2167 | if (mImageBase != NULL) {\r | |
2168 | FreePool (mImageBase);\r | |
2169 | mImageBase = NULL;\r | |
2170 | }\r | |
2171 | \r | |
2172 | return Status;\r | |
2173 | }\r | |
2174 | \r | |
2175 | /**\r | |
2176 | Enroll signature into DB/DBX/DBT without KEK's authentication.\r | |
2177 | The SignatureOwner GUID will be Private->SignatureGUID.\r | |
2178 | \r | |
2179 | @param[in] PrivateData The module's private data.\r | |
2180 | @param[in] VariableName Variable name of signature database, must be\r | |
2181 | EFI_IMAGE_SECURITY_DATABASE or EFI_IMAGE_SECURITY_DATABASE1.\r | |
2182 | \r | |
2183 | @retval EFI_SUCCESS New signature enrolled successfully.\r | |
2184 | @retval EFI_INVALID_PARAMETER The parameter is invalid.\r | |
2185 | @retval others Fail to enroll signature data.\r | |
2186 | \r | |
2187 | **/\r | |
2188 | EFI_STATUS\r | |
2189 | EnrollSignatureDatabase (\r | |
2190 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *Private,\r | |
2191 | IN CHAR16 *VariableName\r | |
2192 | )\r | |
2193 | {\r | |
2194 | UINT16* FilePostFix;\r | |
2195 | EFI_STATUS Status;\r | |
2196 | UINTN NameLength;\r | |
2197 | \r | |
2198 | if ((Private->FileContext->FileName == NULL) || (Private->FileContext->FHandle == NULL) || (Private->SignatureGUID == NULL)) {\r | |
2199 | return EFI_INVALID_PARAMETER;\r | |
2200 | }\r | |
2201 | \r | |
2202 | Status = SetSecureBootMode (CUSTOM_SECURE_BOOT_MODE);\r | |
2203 | if (EFI_ERROR (Status)) {\r | |
2204 | return Status;\r | |
2205 | }\r | |
2206 | \r | |
2207 | //\r | |
2208 | // Parse the file's postfix.\r | |
2209 | //\r | |
2210 | NameLength = StrLen (Private->FileContext->FileName);\r | |
2211 | if (NameLength <= 4) {\r | |
2212 | return EFI_INVALID_PARAMETER;\r | |
2213 | }\r | |
2214 | FilePostFix = Private->FileContext->FileName + NameLength - 4;\r | |
2215 | if (IsDerEncodeCertificate (FilePostFix)) {\r | |
2216 | //\r | |
2217 | // Supports DER-encoded X509 certificate.\r | |
2218 | //\r | |
2219 | return EnrollX509toSigDB (Private, VariableName);\r | |
2220 | }\r | |
2221 | \r | |
2222 | return EnrollImageSignatureToSigDB (Private, VariableName);\r | |
2223 | }\r | |
2224 | \r | |
2225 | /**\r | |
2226 | List all signatures in specified signature database (e.g. KEK/DB/DBX/DBT)\r | |
2227 | by GUID in the page for user to select and delete as needed.\r | |
2228 | \r | |
2229 | @param[in] PrivateData Module's private data.\r | |
2230 | @param[in] VariableName The variable name of the vendor's signature database.\r | |
2231 | @param[in] VendorGuid A unique identifier for the vendor.\r | |
2232 | @param[in] LabelNumber Label number to insert opcodes.\r | |
2233 | @param[in] FormId Form ID of current page.\r | |
2234 | @param[in] QuestionIdBase Base question id of the signature list.\r | |
2235 | \r | |
2236 | @retval EFI_SUCCESS Success to update the signature list page\r | |
2237 | @retval EFI_OUT_OF_RESOURCES Unable to allocate required resources.\r | |
2238 | \r | |
2239 | **/\r | |
2240 | EFI_STATUS\r | |
2241 | UpdateDeletePage (\r | |
2242 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData,\r | |
2243 | IN CHAR16 *VariableName,\r | |
2244 | IN EFI_GUID *VendorGuid,\r | |
2245 | IN UINT16 LabelNumber,\r | |
2246 | IN EFI_FORM_ID FormId,\r | |
2247 | IN EFI_QUESTION_ID QuestionIdBase\r | |
2248 | )\r | |
2249 | {\r | |
2250 | EFI_STATUS Status;\r | |
2251 | UINT32 Index;\r | |
2252 | UINTN CertCount;\r | |
2253 | UINTN GuidIndex;\r | |
2254 | VOID *StartOpCodeHandle;\r | |
2255 | VOID *EndOpCodeHandle;\r | |
2256 | EFI_IFR_GUID_LABEL *StartLabel;\r | |
2257 | EFI_IFR_GUID_LABEL *EndLabel;\r | |
2258 | UINTN DataSize;\r | |
2259 | UINT8 *Data;\r | |
2260 | EFI_SIGNATURE_LIST *CertList;\r | |
2261 | EFI_SIGNATURE_DATA *Cert;\r | |
2262 | UINT32 ItemDataSize;\r | |
2263 | CHAR16 *GuidStr;\r | |
2264 | EFI_STRING_ID GuidID;\r | |
2265 | EFI_STRING_ID Help;\r | |
2266 | \r | |
2267 | Data = NULL;\r | |
2268 | CertList = NULL;\r | |
2269 | Cert = NULL;\r | |
2270 | GuidStr = NULL;\r | |
2271 | StartOpCodeHandle = NULL;\r | |
2272 | EndOpCodeHandle = NULL;\r | |
2273 | \r | |
2274 | //\r | |
2275 | // Initialize the container for dynamic opcodes.\r | |
2276 | //\r | |
2277 | StartOpCodeHandle = HiiAllocateOpCodeHandle ();\r | |
2278 | if (StartOpCodeHandle == NULL) {\r | |
2279 | Status = EFI_OUT_OF_RESOURCES;\r | |
2280 | goto ON_EXIT;\r | |
2281 | }\r | |
2282 | \r | |
2283 | EndOpCodeHandle = HiiAllocateOpCodeHandle ();\r | |
2284 | if (EndOpCodeHandle == NULL) {\r | |
2285 | Status = EFI_OUT_OF_RESOURCES;\r | |
2286 | goto ON_EXIT;\r | |
2287 | }\r | |
2288 | \r | |
2289 | //\r | |
2290 | // Create Hii Extend Label OpCode.\r | |
2291 | //\r | |
2292 | StartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (\r | |
2293 | StartOpCodeHandle,\r | |
2294 | &gEfiIfrTianoGuid,\r | |
2295 | NULL,\r | |
2296 | sizeof (EFI_IFR_GUID_LABEL)\r | |
2297 | );\r | |
2298 | StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r | |
2299 | StartLabel->Number = LabelNumber;\r | |
2300 | \r | |
2301 | EndLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (\r | |
2302 | EndOpCodeHandle,\r | |
2303 | &gEfiIfrTianoGuid,\r | |
2304 | NULL,\r | |
2305 | sizeof (EFI_IFR_GUID_LABEL)\r | |
2306 | );\r | |
2307 | EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r | |
2308 | EndLabel->Number = LABEL_END;\r | |
2309 | \r | |
2310 | //\r | |
2311 | // Read Variable.\r | |
2312 | //\r | |
2313 | DataSize = 0;\r | |
2314 | Status = gRT->GetVariable (VariableName, VendorGuid, NULL, &DataSize, Data);\r | |
2315 | if (EFI_ERROR (Status) && Status != EFI_BUFFER_TOO_SMALL) {\r | |
2316 | goto ON_EXIT;\r | |
2317 | }\r | |
2318 | \r | |
2319 | Data = (UINT8 *) AllocateZeroPool (DataSize);\r | |
2320 | if (Data == NULL) {\r | |
2321 | Status = EFI_OUT_OF_RESOURCES;\r | |
2322 | goto ON_EXIT;\r | |
2323 | }\r | |
2324 | \r | |
2325 | Status = gRT->GetVariable (VariableName, VendorGuid, NULL, &DataSize, Data);\r | |
2326 | if (EFI_ERROR (Status)) {\r | |
2327 | goto ON_EXIT;\r | |
2328 | }\r | |
2329 | \r | |
2330 | GuidStr = AllocateZeroPool (100);\r | |
2331 | if (GuidStr == NULL) {\r | |
2332 | Status = EFI_OUT_OF_RESOURCES;\r | |
2333 | goto ON_EXIT;\r | |
2334 | }\r | |
2335 | \r | |
2336 | //\r | |
2337 | // Enumerate all KEK pub data.\r | |
2338 | //\r | |
2339 | ItemDataSize = (UINT32) DataSize;\r | |
2340 | CertList = (EFI_SIGNATURE_LIST *) Data;\r | |
2341 | GuidIndex = 0;\r | |
2342 | \r | |
2343 | while ((ItemDataSize > 0) && (ItemDataSize >= CertList->SignatureListSize)) {\r | |
2344 | \r | |
2345 | if (CompareGuid (&CertList->SignatureType, &gEfiCertRsa2048Guid)) {\r | |
2346 | Help = STRING_TOKEN (STR_CERT_TYPE_RSA2048_SHA256_GUID);\r | |
2347 | } else if (CompareGuid (&CertList->SignatureType, &gEfiCertX509Guid)) {\r | |
2348 | Help = STRING_TOKEN (STR_CERT_TYPE_PCKS7_GUID);\r | |
2349 | } else if (CompareGuid (&CertList->SignatureType, &gEfiCertSha1Guid)) {\r | |
2350 | Help = STRING_TOKEN (STR_CERT_TYPE_SHA1_GUID);\r | |
2351 | } else if (CompareGuid (&CertList->SignatureType, &gEfiCertSha256Guid)) {\r | |
2352 | Help = STRING_TOKEN (STR_CERT_TYPE_SHA256_GUID);\r | |
2353 | } else if (CompareGuid (&CertList->SignatureType, &gEfiCertX509Sha256Guid)) {\r | |
2354 | Help = STRING_TOKEN (STR_CERT_TYPE_X509_SHA256_GUID);\r | |
2355 | } else if (CompareGuid (&CertList->SignatureType, &gEfiCertX509Sha384Guid)) {\r | |
2356 | Help = STRING_TOKEN (STR_CERT_TYPE_X509_SHA384_GUID);\r | |
2357 | } else if (CompareGuid (&CertList->SignatureType, &gEfiCertX509Sha512Guid)) {\r | |
2358 | Help = STRING_TOKEN (STR_CERT_TYPE_X509_SHA512_GUID);\r | |
2359 | } else {\r | |
2360 | //\r | |
2361 | // The signature type is not supported in current implementation.\r | |
2362 | //\r | |
2363 | ItemDataSize -= CertList->SignatureListSize;\r | |
2364 | CertList = (EFI_SIGNATURE_LIST *) ((UINT8 *) CertList + CertList->SignatureListSize);\r | |
2365 | continue;\r | |
2366 | }\r | |
2367 | \r | |
2368 | CertCount = (CertList->SignatureListSize - sizeof (EFI_SIGNATURE_LIST) - CertList->SignatureHeaderSize) / CertList->SignatureSize;\r | |
2369 | for (Index = 0; Index < CertCount; Index++) {\r | |
2370 | Cert = (EFI_SIGNATURE_DATA *) ((UINT8 *) CertList\r | |
2371 | + sizeof (EFI_SIGNATURE_LIST)\r | |
2372 | + CertList->SignatureHeaderSize\r | |
2373 | + Index * CertList->SignatureSize);\r | |
2374 | //\r | |
2375 | // Display GUID and help\r | |
2376 | //\r | |
2377 | GuidToString (&Cert->SignatureOwner, GuidStr, 100);\r | |
2378 | GuidID = HiiSetString (PrivateData->HiiHandle, 0, GuidStr, NULL);\r | |
2379 | HiiCreateCheckBoxOpCode (\r | |
2380 | StartOpCodeHandle,\r | |
2381 | (EFI_QUESTION_ID) (QuestionIdBase + GuidIndex++),\r | |
2382 | 0,\r | |
2383 | 0,\r | |
2384 | GuidID,\r | |
2385 | Help,\r | |
2386 | EFI_IFR_FLAG_CALLBACK,\r | |
2387 | 0,\r | |
2388 | NULL\r | |
2389 | );\r | |
2390 | }\r | |
2391 | \r | |
2392 | ItemDataSize -= CertList->SignatureListSize;\r | |
2393 | CertList = (EFI_SIGNATURE_LIST *) ((UINT8 *) CertList + CertList->SignatureListSize);\r | |
2394 | }\r | |
2395 | \r | |
2396 | ON_EXIT:\r | |
2397 | HiiUpdateForm (\r | |
2398 | PrivateData->HiiHandle,\r | |
2399 | &gSecureBootConfigFormSetGuid,\r | |
2400 | FormId,\r | |
2401 | StartOpCodeHandle,\r | |
2402 | EndOpCodeHandle\r | |
2403 | );\r | |
2404 | \r | |
2405 | if (StartOpCodeHandle != NULL) {\r | |
2406 | HiiFreeOpCodeHandle (StartOpCodeHandle);\r | |
2407 | }\r | |
2408 | \r | |
2409 | if (EndOpCodeHandle != NULL) {\r | |
2410 | HiiFreeOpCodeHandle (EndOpCodeHandle);\r | |
2411 | }\r | |
2412 | \r | |
2413 | if (Data != NULL) {\r | |
2414 | FreePool (Data);\r | |
2415 | }\r | |
2416 | \r | |
2417 | if (GuidStr != NULL) {\r | |
2418 | FreePool (GuidStr);\r | |
2419 | }\r | |
2420 | \r | |
2421 | return EFI_SUCCESS;\r | |
2422 | }\r | |
2423 | \r | |
2424 | /**\r | |
2425 | Delete a KEK entry from KEK database.\r | |
2426 | \r | |
2427 | @param[in] PrivateData Module's private data.\r | |
2428 | @param[in] QuestionId Question id of the KEK item to delete.\r | |
2429 | \r | |
2430 | @retval EFI_SUCCESS Delete kek item successfully.\r | |
2431 | @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.\r | |
2432 | \r | |
2433 | **/\r | |
2434 | EFI_STATUS\r | |
2435 | DeleteKeyExchangeKey (\r | |
2436 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData,\r | |
2437 | IN EFI_QUESTION_ID QuestionId\r | |
2438 | )\r | |
2439 | {\r | |
2440 | EFI_STATUS Status;\r | |
2441 | UINTN DataSize;\r | |
2442 | UINT8 *Data;\r | |
2443 | UINT8 *OldData;\r | |
2444 | UINT32 Attr;\r | |
2445 | UINT32 Index;\r | |
2446 | EFI_SIGNATURE_LIST *CertList;\r | |
2447 | EFI_SIGNATURE_LIST *NewCertList;\r | |
2448 | EFI_SIGNATURE_DATA *Cert;\r | |
2449 | UINTN CertCount;\r | |
2450 | UINT32 Offset;\r | |
2451 | BOOLEAN IsKEKItemFound;\r | |
2452 | UINT32 KekDataSize;\r | |
2453 | UINTN DeleteKekIndex;\r | |
2454 | UINTN GuidIndex;\r | |
2455 | \r | |
2456 | Data = NULL;\r | |
2457 | OldData = NULL;\r | |
2458 | CertList = NULL;\r | |
2459 | Cert = NULL;\r | |
2460 | Attr = 0;\r | |
2461 | DeleteKekIndex = QuestionId - OPTION_DEL_KEK_QUESTION_ID;\r | |
2462 | \r | |
2463 | Status = SetSecureBootMode(CUSTOM_SECURE_BOOT_MODE);\r | |
2464 | if (EFI_ERROR (Status)) {\r | |
2465 | return Status;\r | |
2466 | }\r | |
2467 | \r | |
2468 | //\r | |
2469 | // Get original KEK variable.\r | |
2470 | //\r | |
2471 | DataSize = 0;\r | |
2472 | Status = gRT->GetVariable (EFI_KEY_EXCHANGE_KEY_NAME, &gEfiGlobalVariableGuid, NULL, &DataSize, NULL);\r | |
2473 | if (EFI_ERROR(Status) && Status != EFI_BUFFER_TOO_SMALL) {\r | |
2474 | goto ON_EXIT;\r | |
2475 | }\r | |
2476 | \r | |
2477 | OldData = (UINT8*)AllocateZeroPool(DataSize);\r | |
2478 | if (OldData == NULL) {\r | |
2479 | Status = EFI_OUT_OF_RESOURCES;\r | |
2480 | goto ON_EXIT;\r | |
2481 | }\r | |
2482 | \r | |
2483 | Status = gRT->GetVariable (EFI_KEY_EXCHANGE_KEY_NAME, &gEfiGlobalVariableGuid, &Attr, &DataSize, OldData);\r | |
2484 | if (EFI_ERROR(Status)) {\r | |
2485 | goto ON_EXIT;\r | |
2486 | }\r | |
2487 | \r | |
2488 | //\r | |
2489 | // Allocate space for new variable.\r | |
2490 | //\r | |
2491 | Data = (UINT8*) AllocateZeroPool (DataSize);\r | |
2492 | if (Data == NULL) {\r | |
2493 | Status = EFI_OUT_OF_RESOURCES;\r | |
2494 | goto ON_EXIT;\r | |
2495 | }\r | |
2496 | \r | |
2497 | //\r | |
2498 | // Enumerate all KEK pub data and erasing the target item.\r | |
2499 | //\r | |
2500 | IsKEKItemFound = FALSE;\r | |
2501 | KekDataSize = (UINT32) DataSize;\r | |
2502 | CertList = (EFI_SIGNATURE_LIST *) OldData;\r | |
2503 | Offset = 0;\r | |
2504 | GuidIndex = 0;\r | |
2505 | while ((KekDataSize > 0) && (KekDataSize >= CertList->SignatureListSize)) {\r | |
2506 | if (CompareGuid (&CertList->SignatureType, &gEfiCertRsa2048Guid) ||\r | |
2507 | CompareGuid (&CertList->SignatureType, &gEfiCertX509Guid)) {\r | |
2508 | CopyMem (Data + Offset, CertList, (sizeof(EFI_SIGNATURE_LIST) + CertList->SignatureHeaderSize));\r | |
2509 | NewCertList = (EFI_SIGNATURE_LIST *)(Data + Offset);\r | |
2510 | Offset += (sizeof(EFI_SIGNATURE_LIST) + CertList->SignatureHeaderSize);\r | |
2511 | Cert = (EFI_SIGNATURE_DATA *) ((UINT8 *) CertList + sizeof (EFI_SIGNATURE_LIST) + CertList->SignatureHeaderSize);\r | |
2512 | CertCount = (CertList->SignatureListSize - sizeof (EFI_SIGNATURE_LIST) - CertList->SignatureHeaderSize) / CertList->SignatureSize;\r | |
2513 | for (Index = 0; Index < CertCount; Index++) {\r | |
2514 | if (GuidIndex == DeleteKekIndex ) {\r | |
2515 | //\r | |
2516 | // Find it! Skip it!\r | |
2517 | //\r | |
2518 | NewCertList->SignatureListSize -= CertList->SignatureSize;\r | |
2519 | IsKEKItemFound = TRUE;\r | |
2520 | } else {\r | |
2521 | //\r | |
2522 | // This item doesn't match. Copy it to the Data buffer.\r | |
2523 | //\r | |
2524 | CopyMem (Data + Offset, Cert, CertList->SignatureSize);\r | |
2525 | Offset += CertList->SignatureSize;\r | |
2526 | }\r | |
2527 | GuidIndex++;\r | |
2528 | Cert = (EFI_SIGNATURE_DATA *) ((UINT8*) Cert + CertList->SignatureSize);\r | |
2529 | }\r | |
2530 | } else {\r | |
2531 | //\r | |
2532 | // This List doesn't match. Copy it to the Data buffer.\r | |
2533 | //\r | |
2534 | CopyMem (Data + Offset, CertList, CertList->SignatureListSize);\r | |
2535 | Offset += CertList->SignatureListSize;\r | |
2536 | }\r | |
2537 | \r | |
2538 | KekDataSize -= CertList->SignatureListSize;\r | |
2539 | CertList = (EFI_SIGNATURE_LIST*) ((UINT8*) CertList + CertList->SignatureListSize);\r | |
2540 | }\r | |
2541 | \r | |
2542 | if (!IsKEKItemFound) {\r | |
2543 | //\r | |
2544 | // Doesn't find the Kek Item!\r | |
2545 | //\r | |
2546 | Status = EFI_NOT_FOUND;\r | |
2547 | goto ON_EXIT;\r | |
2548 | }\r | |
2549 | \r | |
2550 | //\r | |
2551 | // Delete the Signature header if there is no signature in the list.\r | |
2552 | //\r | |
2553 | KekDataSize = Offset;\r | |
2554 | CertList = (EFI_SIGNATURE_LIST*) Data;\r | |
2555 | Offset = 0;\r | |
2556 | ZeroMem (OldData, KekDataSize);\r | |
2557 | while ((KekDataSize > 0) && (KekDataSize >= CertList->SignatureListSize)) {\r | |
2558 | CertCount = (CertList->SignatureListSize - sizeof (EFI_SIGNATURE_LIST) - CertList->SignatureHeaderSize) / CertList->SignatureSize;\r | |
2559 | DEBUG ((DEBUG_INFO, " CertCount = %x\n", CertCount));\r | |
2560 | if (CertCount != 0) {\r | |
2561 | CopyMem (OldData + Offset, CertList, CertList->SignatureListSize);\r | |
2562 | Offset += CertList->SignatureListSize;\r | |
2563 | }\r | |
2564 | KekDataSize -= CertList->SignatureListSize;\r | |
2565 | CertList = (EFI_SIGNATURE_LIST *) ((UINT8 *) CertList + CertList->SignatureListSize);\r | |
2566 | }\r | |
2567 | \r | |
2568 | DataSize = Offset;\r | |
2569 | if ((Attr & EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS) != 0) {\r | |
2570 | Status = CreateTimeBasedPayload (&DataSize, &OldData);\r | |
2571 | if (EFI_ERROR (Status)) {\r | |
2572 | DEBUG ((EFI_D_ERROR, "Fail to create time-based data payload: %r", Status));\r | |
2573 | goto ON_EXIT;\r | |
2574 | }\r | |
2575 | }\r | |
2576 | \r | |
2577 | Status = gRT->SetVariable(\r | |
2578 | EFI_KEY_EXCHANGE_KEY_NAME,\r | |
2579 | &gEfiGlobalVariableGuid,\r | |
2580 | Attr,\r | |
2581 | DataSize,\r | |
2582 | OldData\r | |
2583 | );\r | |
2584 | if (EFI_ERROR (Status)) {\r | |
2585 | DEBUG ((DEBUG_ERROR, "Failed to set variable, Status = %r\n", Status));\r | |
2586 | goto ON_EXIT;\r | |
2587 | }\r | |
2588 | \r | |
2589 | ON_EXIT:\r | |
2590 | if (Data != NULL) {\r | |
2591 | FreePool(Data);\r | |
2592 | }\r | |
2593 | \r | |
2594 | if (OldData != NULL) {\r | |
2595 | FreePool(OldData);\r | |
2596 | }\r | |
2597 | \r | |
2598 | return UpdateDeletePage (\r | |
2599 | PrivateData,\r | |
2600 | EFI_KEY_EXCHANGE_KEY_NAME,\r | |
2601 | &gEfiGlobalVariableGuid,\r | |
2602 | LABEL_KEK_DELETE,\r | |
2603 | FORMID_DELETE_KEK_FORM,\r | |
2604 | OPTION_DEL_KEK_QUESTION_ID\r | |
2605 | );\r | |
2606 | }\r | |
2607 | \r | |
2608 | /**\r | |
2609 | Delete a signature entry from siganture database.\r | |
2610 | \r | |
2611 | @param[in] PrivateData Module's private data.\r | |
2612 | @param[in] VariableName The variable name of the vendor's signature database.\r | |
2613 | @param[in] VendorGuid A unique identifier for the vendor.\r | |
2614 | @param[in] LabelNumber Label number to insert opcodes.\r | |
2615 | @param[in] FormId Form ID of current page.\r | |
2616 | @param[in] QuestionIdBase Base question id of the signature list.\r | |
2617 | @param[in] DeleteIndex Signature index to delete.\r | |
2618 | \r | |
2619 | @retval EFI_SUCCESS Delete siganture successfully.\r | |
2620 | @retval EFI_NOT_FOUND Can't find the signature item,\r | |
2621 | @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.\r | |
2622 | **/\r | |
2623 | EFI_STATUS\r | |
2624 | DeleteSignature (\r | |
2625 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData,\r | |
2626 | IN CHAR16 *VariableName,\r | |
2627 | IN EFI_GUID *VendorGuid,\r | |
2628 | IN UINT16 LabelNumber,\r | |
2629 | IN EFI_FORM_ID FormId,\r | |
2630 | IN EFI_QUESTION_ID QuestionIdBase,\r | |
2631 | IN UINTN DeleteIndex\r | |
2632 | )\r | |
2633 | {\r | |
2634 | EFI_STATUS Status;\r | |
2635 | UINTN DataSize;\r | |
2636 | UINT8 *Data;\r | |
2637 | UINT8 *OldData;\r | |
2638 | UINT32 Attr;\r | |
2639 | UINT32 Index;\r | |
2640 | EFI_SIGNATURE_LIST *CertList;\r | |
2641 | EFI_SIGNATURE_LIST *NewCertList;\r | |
2642 | EFI_SIGNATURE_DATA *Cert;\r | |
2643 | UINTN CertCount;\r | |
2644 | UINT32 Offset;\r | |
2645 | BOOLEAN IsItemFound;\r | |
2646 | UINT32 ItemDataSize;\r | |
2647 | UINTN GuidIndex;\r | |
2648 | \r | |
2649 | Data = NULL;\r | |
2650 | OldData = NULL;\r | |
2651 | CertList = NULL;\r | |
2652 | Cert = NULL;\r | |
2653 | Attr = 0;\r | |
2654 | \r | |
2655 | Status = SetSecureBootMode(CUSTOM_SECURE_BOOT_MODE);\r | |
2656 | if (EFI_ERROR (Status)) {\r | |
2657 | return Status;\r | |
2658 | }\r | |
2659 | \r | |
2660 | //\r | |
2661 | // Get original signature list data.\r | |
2662 | //\r | |
2663 | DataSize = 0;\r | |
2664 | Status = gRT->GetVariable (VariableName, VendorGuid, NULL, &DataSize, NULL);\r | |
2665 | if (EFI_ERROR (Status) && Status != EFI_BUFFER_TOO_SMALL) {\r | |
2666 | goto ON_EXIT;\r | |
2667 | }\r | |
2668 | \r | |
2669 | OldData = (UINT8 *) AllocateZeroPool (DataSize);\r | |
2670 | if (OldData == NULL) {\r | |
2671 | Status = EFI_OUT_OF_RESOURCES;\r | |
2672 | goto ON_EXIT;\r | |
2673 | }\r | |
2674 | \r | |
2675 | Status = gRT->GetVariable (VariableName, VendorGuid, &Attr, &DataSize, OldData);\r | |
2676 | if (EFI_ERROR(Status)) {\r | |
2677 | goto ON_EXIT;\r | |
2678 | }\r | |
2679 | \r | |
2680 | //\r | |
2681 | // Allocate space for new variable.\r | |
2682 | //\r | |
2683 | Data = (UINT8*) AllocateZeroPool (DataSize);\r | |
2684 | if (Data == NULL) {\r | |
2685 | Status = EFI_OUT_OF_RESOURCES;\r | |
2686 | goto ON_EXIT;\r | |
2687 | }\r | |
2688 | \r | |
2689 | //\r | |
2690 | // Enumerate all signature data and erasing the target item.\r | |
2691 | //\r | |
2692 | IsItemFound = FALSE;\r | |
2693 | ItemDataSize = (UINT32) DataSize;\r | |
2694 | CertList = (EFI_SIGNATURE_LIST *) OldData;\r | |
2695 | Offset = 0;\r | |
2696 | GuidIndex = 0;\r | |
2697 | while ((ItemDataSize > 0) && (ItemDataSize >= CertList->SignatureListSize)) {\r | |
2698 | if (CompareGuid (&CertList->SignatureType, &gEfiCertRsa2048Guid) ||\r | |
2699 | CompareGuid (&CertList->SignatureType, &gEfiCertX509Guid) ||\r | |
2700 | CompareGuid (&CertList->SignatureType, &gEfiCertSha1Guid) ||\r | |
2701 | CompareGuid (&CertList->SignatureType, &gEfiCertSha256Guid) ||\r | |
2702 | CompareGuid (&CertList->SignatureType, &gEfiCertX509Sha256Guid) ||\r | |
2703 | CompareGuid (&CertList->SignatureType, &gEfiCertX509Sha384Guid) ||\r | |
2704 | CompareGuid (&CertList->SignatureType, &gEfiCertX509Sha512Guid)\r | |
2705 | ) {\r | |
2706 | //\r | |
2707 | // Copy EFI_SIGNATURE_LIST header then calculate the signature count in this list.\r | |
2708 | //\r | |
2709 | CopyMem (Data + Offset, CertList, (sizeof(EFI_SIGNATURE_LIST) + CertList->SignatureHeaderSize));\r | |
2710 | NewCertList = (EFI_SIGNATURE_LIST*) (Data + Offset);\r | |
2711 | Offset += (sizeof(EFI_SIGNATURE_LIST) + CertList->SignatureHeaderSize);\r | |
2712 | Cert = (EFI_SIGNATURE_DATA *) ((UINT8 *) CertList + sizeof (EFI_SIGNATURE_LIST) + CertList->SignatureHeaderSize);\r | |
2713 | CertCount = (CertList->SignatureListSize - sizeof (EFI_SIGNATURE_LIST) - CertList->SignatureHeaderSize) / CertList->SignatureSize;\r | |
2714 | for (Index = 0; Index < CertCount; Index++) {\r | |
2715 | if (GuidIndex == DeleteIndex) {\r | |
2716 | //\r | |
2717 | // Find it! Skip it!\r | |
2718 | //\r | |
2719 | NewCertList->SignatureListSize -= CertList->SignatureSize;\r | |
2720 | IsItemFound = TRUE;\r | |
2721 | } else {\r | |
2722 | //\r | |
2723 | // This item doesn't match. Copy it to the Data buffer.\r | |
2724 | //\r | |
2725 | CopyMem (Data + Offset, (UINT8*)(Cert), CertList->SignatureSize);\r | |
2726 | Offset += CertList->SignatureSize;\r | |
2727 | }\r | |
2728 | GuidIndex++;\r | |
2729 | Cert = (EFI_SIGNATURE_DATA *) ((UINT8 *) Cert + CertList->SignatureSize);\r | |
2730 | }\r | |
2731 | } else {\r | |
2732 | //\r | |
2733 | // This List doesn't match. Just copy it to the Data buffer.\r | |
2734 | //\r | |
2735 | CopyMem (Data + Offset, (UINT8*)(CertList), CertList->SignatureListSize);\r | |
2736 | Offset += CertList->SignatureListSize;\r | |
2737 | }\r | |
2738 | \r | |
2739 | ItemDataSize -= CertList->SignatureListSize;\r | |
2740 | CertList = (EFI_SIGNATURE_LIST *) ((UINT8 *) CertList + CertList->SignatureListSize);\r | |
2741 | }\r | |
2742 | \r | |
2743 | if (!IsItemFound) {\r | |
2744 | //\r | |
2745 | // Doesn't find the signature Item!\r | |
2746 | //\r | |
2747 | Status = EFI_NOT_FOUND;\r | |
2748 | goto ON_EXIT;\r | |
2749 | }\r | |
2750 | \r | |
2751 | //\r | |
2752 | // Delete the EFI_SIGNATURE_LIST header if there is no signature in the list.\r | |
2753 | //\r | |
2754 | ItemDataSize = Offset;\r | |
2755 | CertList = (EFI_SIGNATURE_LIST *) Data;\r | |
2756 | Offset = 0;\r | |
2757 | ZeroMem (OldData, ItemDataSize);\r | |
2758 | while ((ItemDataSize > 0) && (ItemDataSize >= CertList->SignatureListSize)) {\r | |
2759 | CertCount = (CertList->SignatureListSize - sizeof (EFI_SIGNATURE_LIST) - CertList->SignatureHeaderSize) / CertList->SignatureSize;\r | |
2760 | DEBUG ((DEBUG_INFO, " CertCount = %x\n", CertCount));\r | |
2761 | if (CertCount != 0) {\r | |
2762 | CopyMem (OldData + Offset, (UINT8*)(CertList), CertList->SignatureListSize);\r | |
2763 | Offset += CertList->SignatureListSize;\r | |
2764 | }\r | |
2765 | ItemDataSize -= CertList->SignatureListSize;\r | |
2766 | CertList = (EFI_SIGNATURE_LIST *) ((UINT8 *) CertList + CertList->SignatureListSize);\r | |
2767 | }\r | |
2768 | \r | |
2769 | DataSize = Offset;\r | |
2770 | if ((Attr & EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS) != 0) {\r | |
2771 | Status = CreateTimeBasedPayload (&DataSize, &OldData);\r | |
2772 | if (EFI_ERROR (Status)) {\r | |
2773 | DEBUG ((EFI_D_ERROR, "Fail to create time-based data payload: %r", Status));\r | |
2774 | goto ON_EXIT;\r | |
2775 | }\r | |
2776 | }\r | |
2777 | \r | |
2778 | Status = gRT->SetVariable(\r | |
2779 | VariableName,\r | |
2780 | VendorGuid,\r | |
2781 | Attr,\r | |
2782 | DataSize,\r | |
2783 | OldData\r | |
2784 | );\r | |
2785 | if (EFI_ERROR (Status)) {\r | |
2786 | DEBUG ((DEBUG_ERROR, "Failed to set variable, Status = %r\n", Status));\r | |
2787 | goto ON_EXIT;\r | |
2788 | }\r | |
2789 | \r | |
2790 | ON_EXIT:\r | |
2791 | if (Data != NULL) {\r | |
2792 | FreePool(Data);\r | |
2793 | }\r | |
2794 | \r | |
2795 | if (OldData != NULL) {\r | |
2796 | FreePool(OldData);\r | |
2797 | }\r | |
2798 | \r | |
2799 | return UpdateDeletePage (\r | |
2800 | PrivateData,\r | |
2801 | VariableName,\r | |
2802 | VendorGuid,\r | |
2803 | LabelNumber,\r | |
2804 | FormId,\r | |
2805 | QuestionIdBase\r | |
2806 | );\r | |
2807 | }\r | |
2808 | \r | |
2809 | /**\r | |
2810 | This function extracts configuration from variable.\r | |
2811 | \r | |
2812 | @param[in, out] ConfigData Point to SecureBoot configuration private data.\r | |
2813 | \r | |
2814 | **/\r | |
2815 | VOID\r | |
2816 | SecureBootExtractConfigFromVariable (\r | |
2817 | IN OUT SECUREBOOT_CONFIGURATION *ConfigData\r | |
2818 | )\r | |
2819 | {\r | |
2820 | UINT8 *SecureBootEnable;\r | |
2821 | UINT8 *SetupMode;\r | |
2822 | UINT8 *SecureBootMode;\r | |
2823 | EFI_TIME CurrTime;\r | |
2824 | \r | |
2825 | SecureBootEnable = NULL;\r | |
2826 | SetupMode = NULL;\r | |
2827 | SecureBootMode = NULL;\r | |
2828 | \r | |
2829 | //\r | |
2830 | // Initilize the Date and Time using system time.\r | |
2831 | //\r | |
2832 | ConfigData->CertificateFormat = HASHALG_RAW;\r | |
2833 | ConfigData->AlwaysRevocation = TRUE;\r | |
2834 | gRT->GetTime (&CurrTime, NULL);\r | |
2835 | ConfigData->RevocationDate.Year = CurrTime.Year;\r | |
2836 | ConfigData->RevocationDate.Month = CurrTime.Month;\r | |
2837 | ConfigData->RevocationDate.Day = CurrTime.Day;\r | |
2838 | ConfigData->RevocationTime.Hour = CurrTime.Hour;\r | |
2839 | ConfigData->RevocationTime.Minute = CurrTime.Minute;\r | |
2840 | ConfigData->RevocationTime.Second = 0;\r | |
2841 | \r | |
2842 | //\r | |
2843 | // If the SecureBootEnable Variable doesn't exist, hide the SecureBoot Enable/Disable\r | |
2844 | // Checkbox.\r | |
2845 | //\r | |
2846 | ConfigData->AttemptSecureBoot = FALSE;\r | |
2847 | GetVariable2 (EFI_SECURE_BOOT_ENABLE_NAME, &gEfiSecureBootEnableDisableGuid, (VOID**)&SecureBootEnable, NULL);\r | |
2848 | if (SecureBootEnable == NULL) {\r | |
2849 | ConfigData->HideSecureBoot = TRUE;\r | |
2850 | } else {\r | |
2851 | ConfigData->HideSecureBoot = FALSE;\r | |
2852 | if ((*SecureBootEnable) == SECURE_BOOT_ENABLE) {\r | |
2853 | ConfigData->AttemptSecureBoot = TRUE;\r | |
2854 | }\r | |
2855 | }\r | |
2856 | \r | |
2857 | //\r | |
2858 | // If it is Physical Presence User, set the PhysicalPresent to true.\r | |
2859 | //\r | |
2860 | if (UserPhysicalPresent()) {\r | |
2861 | ConfigData->PhysicalPresent = TRUE;\r | |
2862 | } else {\r | |
2863 | ConfigData->PhysicalPresent = FALSE;\r | |
2864 | }\r | |
2865 | \r | |
2866 | //\r | |
2867 | // If there is no PK then the Delete Pk button will be gray.\r | |
2868 | //\r | |
2869 | GetVariable2 (EFI_SETUP_MODE_NAME, &gEfiGlobalVariableGuid, (VOID**)&SetupMode, NULL);\r | |
2870 | if (SetupMode == NULL || (*SetupMode) == SETUP_MODE) {\r | |
2871 | ConfigData->HasPk = FALSE;\r | |
2872 | } else {\r | |
2873 | ConfigData->HasPk = TRUE;\r | |
2874 | }\r | |
2875 | \r | |
2876 | //\r | |
2877 | // Get the SecureBootMode from CustomMode variable.\r | |
2878 | //\r | |
2879 | GetVariable2 (EFI_CUSTOM_MODE_NAME, &gEfiCustomModeEnableGuid, (VOID**)&SecureBootMode, NULL);\r | |
2880 | if (SecureBootMode == NULL) {\r | |
2881 | ConfigData->SecureBootMode = STANDARD_SECURE_BOOT_MODE;\r | |
2882 | } else {\r | |
2883 | ConfigData->SecureBootMode = *(SecureBootMode);\r | |
2884 | }\r | |
2885 | \r | |
2886 | if (SecureBootEnable != NULL) {\r | |
2887 | FreePool (SecureBootEnable);\r | |
2888 | }\r | |
2889 | if (SetupMode != NULL) {\r | |
2890 | FreePool (SetupMode);\r | |
2891 | }\r | |
2892 | if (SecureBootMode != NULL) {\r | |
2893 | FreePool (SecureBootMode);\r | |
2894 | }\r | |
2895 | }\r | |
2896 | \r | |
2897 | /**\r | |
2898 | This function allows a caller to extract the current configuration for one\r | |
2899 | or more named elements from the target driver.\r | |
2900 | \r | |
2901 | @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r | |
2902 | @param[in] Request A null-terminated Unicode string in\r | |
2903 | <ConfigRequest> format.\r | |
2904 | @param[out] Progress On return, points to a character in the Request\r | |
2905 | string. Points to the string's null terminator if\r | |
2906 | request was successful. Points to the most recent\r | |
2907 | '&' before the first failing name/value pair (or\r | |
2908 | the beginning of the string if the failure is in\r | |
2909 | the first name/value pair) if the request was not\r | |
2910 | successful.\r | |
2911 | @param[out] Results A null-terminated Unicode string in\r | |
2912 | <ConfigAltResp> format which has all values filled\r | |
2913 | in for the names in the Request string. String to\r | |
2914 | be allocated by the called function.\r | |
2915 | \r | |
2916 | @retval EFI_SUCCESS The Results is filled with the requested values.\r | |
2917 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the results.\r | |
2918 | @retval EFI_INVALID_PARAMETER Request is illegal syntax, or unknown name.\r | |
2919 | @retval EFI_NOT_FOUND Routing data doesn't match any storage in this\r | |
2920 | driver.\r | |
2921 | \r | |
2922 | **/\r | |
2923 | EFI_STATUS\r | |
2924 | EFIAPI\r | |
2925 | SecureBootExtractConfig (\r | |
2926 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
2927 | IN CONST EFI_STRING Request,\r | |
2928 | OUT EFI_STRING *Progress,\r | |
2929 | OUT EFI_STRING *Results\r | |
2930 | )\r | |
2931 | {\r | |
2932 | EFI_STATUS Status;\r | |
2933 | UINTN BufferSize;\r | |
2934 | UINTN Size;\r | |
2935 | SECUREBOOT_CONFIGURATION Configuration;\r | |
2936 | EFI_STRING ConfigRequest;\r | |
2937 | EFI_STRING ConfigRequestHdr;\r | |
2938 | SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData;\r | |
2939 | BOOLEAN AllocatedRequest;\r | |
2940 | UINT8 *SecureBoot;\r | |
2941 | \r | |
2942 | if (Progress == NULL || Results == NULL) {\r | |
2943 | return EFI_INVALID_PARAMETER;\r | |
2944 | }\r | |
2945 | \r | |
2946 | AllocatedRequest = FALSE;\r | |
2947 | ConfigRequestHdr = NULL;\r | |
2948 | ConfigRequest = NULL;\r | |
2949 | Size = 0;\r | |
2950 | SecureBoot = NULL;\r | |
2951 | \r | |
2952 | ZeroMem (&Configuration, sizeof (Configuration));\r | |
2953 | PrivateData = SECUREBOOT_CONFIG_PRIVATE_FROM_THIS (This);\r | |
2954 | *Progress = Request;\r | |
2955 | \r | |
2956 | if ((Request != NULL) && !HiiIsConfigHdrMatch (Request, &gSecureBootConfigFormSetGuid, mSecureBootStorageName)) {\r | |
2957 | return EFI_NOT_FOUND;\r | |
2958 | }\r | |
2959 | \r | |
2960 | //\r | |
2961 | // Get Configuration from Variable.\r | |
2962 | //\r | |
2963 | SecureBootExtractConfigFromVariable (&Configuration);\r | |
2964 | \r | |
2965 | //\r | |
2966 | // Update current secure boot state.\r | |
2967 | //\r | |
2968 | GetVariable2 (EFI_SECURE_BOOT_MODE_NAME, &gEfiGlobalVariableGuid, (VOID**)&SecureBoot, NULL);\r | |
2969 | if (SecureBoot != NULL && *SecureBoot == SECURE_BOOT_MODE_ENABLE) {\r | |
2970 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_SECURE_BOOT_STATE_CONTENT), L"Enabled", NULL);\r | |
2971 | } else {\r | |
2972 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_SECURE_BOOT_STATE_CONTENT), L"Disabled", NULL);\r | |
2973 | }\r | |
2974 | if (SecureBoot != NULL) {\r | |
2975 | FreePool (SecureBoot);\r | |
2976 | }\r | |
2977 | \r | |
2978 | BufferSize = sizeof (SECUREBOOT_CONFIGURATION);\r | |
2979 | ConfigRequest = Request;\r | |
2980 | if ((Request == NULL) || (StrStr (Request, L"OFFSET") == NULL)) {\r | |
2981 | //\r | |
2982 | // Request is set to NULL or OFFSET is NULL, construct full request string.\r | |
2983 | //\r | |
2984 | // Allocate and fill a buffer large enough to hold the <ConfigHdr> template\r | |
2985 | // followed by "&OFFSET=0&WIDTH=WWWWWWWWWWWWWWWW" followed by a Null-terminator\r | |
2986 | //\r | |
2987 | ConfigRequestHdr = HiiConstructConfigHdr (&gSecureBootConfigFormSetGuid, mSecureBootStorageName, PrivateData->DriverHandle);\r | |
2988 | Size = (StrLen (ConfigRequestHdr) + 32 + 1) * sizeof (CHAR16);\r | |
2989 | ConfigRequest = AllocateZeroPool (Size);\r | |
2990 | ASSERT (ConfigRequest != NULL);\r | |
2991 | AllocatedRequest = TRUE;\r | |
2992 | UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, (UINT64)BufferSize);\r | |
2993 | FreePool (ConfigRequestHdr);\r | |
2994 | ConfigRequestHdr = NULL;\r | |
2995 | }\r | |
2996 | \r | |
2997 | Status = gHiiConfigRouting->BlockToConfig (\r | |
2998 | gHiiConfigRouting,\r | |
2999 | ConfigRequest,\r | |
3000 | (UINT8 *) &Configuration,\r | |
3001 | BufferSize,\r | |
3002 | Results,\r | |
3003 | Progress\r | |
3004 | );\r | |
3005 | \r | |
3006 | //\r | |
3007 | // Free the allocated config request string.\r | |
3008 | //\r | |
3009 | if (AllocatedRequest) {\r | |
3010 | FreePool (ConfigRequest);\r | |
3011 | }\r | |
3012 | \r | |
3013 | //\r | |
3014 | // Set Progress string to the original request string.\r | |
3015 | //\r | |
3016 | if (Request == NULL) {\r | |
3017 | *Progress = NULL;\r | |
3018 | } else if (StrStr (Request, L"OFFSET") == NULL) {\r | |
3019 | *Progress = Request + StrLen (Request);\r | |
3020 | }\r | |
3021 | \r | |
3022 | return Status;\r | |
3023 | }\r | |
3024 | \r | |
3025 | /**\r | |
3026 | This function processes the results of changes in configuration.\r | |
3027 | \r | |
3028 | @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r | |
3029 | @param[in] Configuration A null-terminated Unicode string in <ConfigResp>\r | |
3030 | format.\r | |
3031 | @param[out] Progress A pointer to a string filled in with the offset of\r | |
3032 | the most recent '&' before the first failing\r | |
3033 | name/value pair (or the beginning of the string if\r | |
3034 | the failure is in the first name/value pair) or\r | |
3035 | the terminating NULL if all was successful.\r | |
3036 | \r | |
3037 | @retval EFI_SUCCESS The Results is processed successfully.\r | |
3038 | @retval EFI_INVALID_PARAMETER Configuration is NULL.\r | |
3039 | @retval EFI_NOT_FOUND Routing data doesn't match any storage in this\r | |
3040 | driver.\r | |
3041 | \r | |
3042 | **/\r | |
3043 | EFI_STATUS\r | |
3044 | EFIAPI\r | |
3045 | SecureBootRouteConfig (\r | |
3046 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
3047 | IN CONST EFI_STRING Configuration,\r | |
3048 | OUT EFI_STRING *Progress\r | |
3049 | )\r | |
3050 | {\r | |
3051 | UINT8 *SecureBootEnable;\r | |
3052 | SECUREBOOT_CONFIGURATION IfrNvData;\r | |
3053 | UINTN BufferSize;\r | |
3054 | EFI_STATUS Status;\r | |
3055 | \r | |
3056 | if (Configuration == NULL || Progress == NULL) {\r | |
3057 | return EFI_INVALID_PARAMETER;\r | |
3058 | }\r | |
3059 | \r | |
3060 | *Progress = Configuration;\r | |
3061 | if (!HiiIsConfigHdrMatch (Configuration, &gSecureBootConfigFormSetGuid, mSecureBootStorageName)) {\r | |
3062 | return EFI_NOT_FOUND;\r | |
3063 | }\r | |
3064 | \r | |
3065 | //\r | |
3066 | // Get Configuration from Variable.\r | |
3067 | //\r | |
3068 | SecureBootExtractConfigFromVariable (&IfrNvData);\r | |
3069 | \r | |
3070 | //\r | |
3071 | // Map the Configuration to the configuration block.\r | |
3072 | //\r | |
3073 | BufferSize = sizeof (SECUREBOOT_CONFIGURATION);\r | |
3074 | Status = gHiiConfigRouting->ConfigToBlock (\r | |
3075 | gHiiConfigRouting,\r | |
3076 | Configuration,\r | |
3077 | (UINT8 *)&IfrNvData,\r | |
3078 | &BufferSize,\r | |
3079 | Progress\r | |
3080 | );\r | |
3081 | if (EFI_ERROR (Status)) {\r | |
3082 | return Status;\r | |
3083 | }\r | |
3084 | \r | |
3085 | //\r | |
3086 | // Store Buffer Storage back to EFI variable if needed\r | |
3087 | //\r | |
3088 | SecureBootEnable = NULL;\r | |
3089 | GetVariable2 (EFI_SECURE_BOOT_ENABLE_NAME, &gEfiSecureBootEnableDisableGuid, (VOID**)&SecureBootEnable, NULL);\r | |
3090 | if (NULL != SecureBootEnable) {\r | |
3091 | FreePool (SecureBootEnable);\r | |
3092 | Status = SaveSecureBootVariable (IfrNvData.AttemptSecureBoot);\r | |
3093 | if (EFI_ERROR (Status)) {\r | |
3094 | return Status;\r | |
3095 | }\r | |
3096 | }\r | |
3097 | \r | |
3098 | *Progress = Configuration + StrLen (Configuration);\r | |
3099 | return EFI_SUCCESS;\r | |
3100 | }\r | |
3101 | \r | |
3102 | /**\r | |
3103 | This function is called to provide results data to the driver.\r | |
3104 | \r | |
3105 | @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r | |
3106 | @param[in] Action Specifies the type of action taken by the browser.\r | |
3107 | @param[in] QuestionId A unique value which is sent to the original\r | |
3108 | exporting driver so that it can identify the type\r | |
3109 | of data to expect.\r | |
3110 | @param[in] Type The type of value for the question.\r | |
3111 | @param[in] Value A pointer to the data being sent to the original\r | |
3112 | exporting driver.\r | |
3113 | @param[out] ActionRequest On return, points to the action requested by the\r | |
3114 | callback function.\r | |
3115 | \r | |
3116 | @retval EFI_SUCCESS The callback successfully handled the action.\r | |
3117 | @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the\r | |
3118 | variable and its data.\r | |
3119 | @retval EFI_DEVICE_ERROR The variable could not be saved.\r | |
3120 | @retval EFI_UNSUPPORTED The specified Action is not supported by the\r | |
3121 | callback.\r | |
3122 | \r | |
3123 | **/\r | |
3124 | EFI_STATUS\r | |
3125 | EFIAPI\r | |
3126 | SecureBootCallback (\r | |
3127 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
3128 | IN EFI_BROWSER_ACTION Action,\r | |
3129 | IN EFI_QUESTION_ID QuestionId,\r | |
3130 | IN UINT8 Type,\r | |
3131 | IN EFI_IFR_TYPE_VALUE *Value,\r | |
3132 | OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest\r | |
3133 | )\r | |
3134 | {\r | |
3135 | EFI_INPUT_KEY Key;\r | |
3136 | EFI_STATUS Status;\r | |
3137 | SECUREBOOT_CONFIG_PRIVATE_DATA *Private;\r | |
3138 | UINTN BufferSize;\r | |
3139 | SECUREBOOT_CONFIGURATION *IfrNvData;\r | |
3140 | UINT16 LabelId;\r | |
3141 | UINT8 *SecureBootEnable;\r | |
3142 | UINT8 *SecureBootMode;\r | |
3143 | UINT8 *SetupMode;\r | |
3144 | CHAR16 PromptString[100];\r | |
3145 | \r | |
3146 | SecureBootEnable = NULL;\r | |
3147 | SecureBootMode = NULL;\r | |
3148 | SetupMode = NULL;\r | |
3149 | \r | |
3150 | if ((This == NULL) || (Value == NULL) || (ActionRequest == NULL)) {\r | |
3151 | return EFI_INVALID_PARAMETER;\r | |
3152 | }\r | |
3153 | \r | |
3154 | if (Action == EFI_BROWSER_ACTION_FORM_OPEN) {\r | |
3155 | if (QuestionId == KEY_SECURE_BOOT_MODE) {\r | |
3156 | mIsEnterSecureBootForm = TRUE;\r | |
3157 | }\r | |
3158 | \r | |
3159 | return EFI_SUCCESS;\r | |
3160 | }\r | |
3161 | \r | |
3162 | if (Action == EFI_BROWSER_ACTION_RETRIEVE) {\r | |
3163 | Status = EFI_UNSUPPORTED;\r | |
3164 | if (QuestionId == KEY_SECURE_BOOT_MODE) {\r | |
3165 | if (mIsEnterSecureBootForm) {\r | |
3166 | Value->u8 = SECURE_BOOT_MODE_STANDARD;\r | |
3167 | Status = EFI_SUCCESS;\r | |
3168 | }\r | |
3169 | }\r | |
3170 | return Status;\r | |
3171 | }\r | |
3172 | \r | |
3173 | if ((Action != EFI_BROWSER_ACTION_CHANGED) &&\r | |
3174 | (Action != EFI_BROWSER_ACTION_CHANGING) &&\r | |
3175 | (Action != EFI_BROWSER_ACTION_FORM_CLOSE) &&\r | |
3176 | (Action != EFI_BROWSER_ACTION_DEFAULT_STANDARD)) {\r | |
3177 | return EFI_UNSUPPORTED;\r | |
3178 | }\r | |
3179 | \r | |
3180 | Private = SECUREBOOT_CONFIG_PRIVATE_FROM_THIS (This);\r | |
3181 | \r | |
3182 | //\r | |
3183 | // Retrieve uncommitted data from Browser\r | |
3184 | //\r | |
3185 | BufferSize = sizeof (SECUREBOOT_CONFIGURATION);\r | |
3186 | IfrNvData = AllocateZeroPool (BufferSize);\r | |
3187 | if (IfrNvData == NULL) {\r | |
3188 | return EFI_OUT_OF_RESOURCES;\r | |
3189 | }\r | |
3190 | \r | |
3191 | Status = EFI_SUCCESS;\r | |
3192 | \r | |
3193 | HiiGetBrowserData (&gSecureBootConfigFormSetGuid, mSecureBootStorageName, BufferSize, (UINT8 *) IfrNvData);\r | |
3194 | \r | |
3195 | if (Action == EFI_BROWSER_ACTION_CHANGING) {\r | |
3196 | \r | |
3197 | switch (QuestionId) {\r | |
3198 | case KEY_SECURE_BOOT_ENABLE:\r | |
3199 | GetVariable2 (EFI_SECURE_BOOT_ENABLE_NAME, &gEfiSecureBootEnableDisableGuid, (VOID**)&SecureBootEnable, NULL);\r | |
3200 | if (NULL != SecureBootEnable) {\r | |
3201 | FreePool (SecureBootEnable);\r | |
3202 | if (EFI_ERROR (SaveSecureBootVariable (Value->u8))) {\r | |
3203 | CreatePopUp (\r | |
3204 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
3205 | &Key,\r | |
3206 | L"Only Physical Presence User could disable secure boot!",\r | |
3207 | NULL\r | |
3208 | );\r | |
3209 | Status = EFI_UNSUPPORTED;\r | |
3210 | } else {\r | |
3211 | CreatePopUp (\r | |
3212 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
3213 | &Key,\r | |
3214 | L"Configuration changed, please reset the platform to take effect!",\r | |
3215 | NULL\r | |
3216 | );\r | |
3217 | }\r | |
3218 | }\r | |
3219 | break;\r | |
3220 | \r | |
3221 | case KEY_SECURE_BOOT_OPTION:\r | |
3222 | FreeMenu (&DirectoryMenu);\r | |
3223 | FreeMenu (&FsOptionMenu);\r | |
3224 | break;\r | |
3225 | \r | |
3226 | case KEY_SECURE_BOOT_KEK_OPTION:\r | |
3227 | case KEY_SECURE_BOOT_DB_OPTION:\r | |
3228 | case KEY_SECURE_BOOT_DBX_OPTION:\r | |
3229 | case KEY_SECURE_BOOT_DBT_OPTION:\r | |
3230 | //\r | |
3231 | // Clear Signature GUID.\r | |
3232 | //\r | |
3233 | ZeroMem (IfrNvData->SignatureGuid, sizeof (IfrNvData->SignatureGuid));\r | |
3234 | if (Private->SignatureGUID == NULL) {\r | |
3235 | Private->SignatureGUID = (EFI_GUID *) AllocateZeroPool (sizeof (EFI_GUID));\r | |
3236 | if (Private->SignatureGUID == NULL) {\r | |
3237 | return EFI_OUT_OF_RESOURCES;\r | |
3238 | }\r | |
3239 | }\r | |
3240 | \r | |
3241 | if (QuestionId == KEY_SECURE_BOOT_DB_OPTION) {\r | |
3242 | LabelId = SECUREBOOT_ENROLL_SIGNATURE_TO_DB;\r | |
3243 | } else if (QuestionId == KEY_SECURE_BOOT_DBX_OPTION) {\r | |
3244 | LabelId = SECUREBOOT_ENROLL_SIGNATURE_TO_DBX;\r | |
3245 | } else if (QuestionId == KEY_SECURE_BOOT_DBT_OPTION) {\r | |
3246 | LabelId = SECUREBOOT_ENROLL_SIGNATURE_TO_DBT;\r | |
3247 | } else {\r | |
3248 | LabelId = FORMID_ENROLL_KEK_FORM;\r | |
3249 | }\r | |
3250 | \r | |
3251 | //\r | |
3252 | // Refresh selected file.\r | |
3253 | //\r | |
3254 | CleanUpPage (LabelId, Private);\r | |
3255 | break;\r | |
3256 | \r | |
3257 | case SECUREBOOT_ADD_PK_FILE_FORM_ID:\r | |
3258 | case FORMID_ENROLL_KEK_FORM:\r | |
3259 | case SECUREBOOT_ENROLL_SIGNATURE_TO_DB:\r | |
3260 | case SECUREBOOT_ENROLL_SIGNATURE_TO_DBX:\r | |
3261 | case SECUREBOOT_ENROLL_SIGNATURE_TO_DBT:\r | |
3262 | if (QuestionId == SECUREBOOT_ADD_PK_FILE_FORM_ID) {\r | |
3263 | Private->FeCurrentState = FileExplorerStateEnrollPkFile;\r | |
3264 | } else if (QuestionId == FORMID_ENROLL_KEK_FORM) {\r | |
3265 | Private->FeCurrentState = FileExplorerStateEnrollKekFile;\r | |
3266 | } else if (QuestionId == SECUREBOOT_ENROLL_SIGNATURE_TO_DB) {\r | |
3267 | Private->FeCurrentState = FileExplorerStateEnrollSignatureFileToDb;\r | |
3268 | } else if (QuestionId == SECUREBOOT_ENROLL_SIGNATURE_TO_DBX) {\r | |
3269 | Private->FeCurrentState = FileExplorerStateEnrollSignatureFileToDbx;\r | |
3270 | IfrNvData->CertificateFormat = HASHALG_SHA256;\r | |
3271 | } else {\r | |
3272 | Private->FeCurrentState = FileExplorerStateEnrollSignatureFileToDbt;\r | |
3273 | }\r | |
3274 | \r | |
3275 | Private->FeDisplayContext = FileExplorerDisplayUnknown;\r | |
3276 | CleanUpPage (FORM_FILE_EXPLORER_ID, Private);\r | |
3277 | UpdateFileExplorer (Private, 0);\r | |
3278 | break;\r | |
3279 | \r | |
3280 | case KEY_SECURE_BOOT_DELETE_PK:\r | |
3281 | if (Value->u8) {\r | |
3282 | CreatePopUp (\r | |
3283 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
3284 | &Key,\r | |
3285 | L"Are you sure you want to delete PK? Secure boot will be disabled!",\r | |
3286 | L"Press 'Y' to delete PK and exit, 'N' to discard change and return",\r | |
3287 | NULL\r | |
3288 | );\r | |
3289 | if (Key.UnicodeChar == 'y' || Key.UnicodeChar == 'Y') {\r | |
3290 | Status = DeletePlatformKey ();\r | |
3291 | if (EFI_ERROR (Status)) {\r | |
3292 | CreatePopUp (\r | |
3293 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
3294 | &Key,\r | |
3295 | L"Only Physical Presence User could delete PK in custom mode!",\r | |
3296 | NULL\r | |
3297 | );\r | |
3298 | }\r | |
3299 | }\r | |
3300 | }\r | |
3301 | break;\r | |
3302 | \r | |
3303 | case KEY_DELETE_KEK:\r | |
3304 | UpdateDeletePage (\r | |
3305 | Private,\r | |
3306 | EFI_KEY_EXCHANGE_KEY_NAME,\r | |
3307 | &gEfiGlobalVariableGuid,\r | |
3308 | LABEL_KEK_DELETE,\r | |
3309 | FORMID_DELETE_KEK_FORM,\r | |
3310 | OPTION_DEL_KEK_QUESTION_ID\r | |
3311 | );\r | |
3312 | break;\r | |
3313 | \r | |
3314 | case SECUREBOOT_DELETE_SIGNATURE_FROM_DB:\r | |
3315 | UpdateDeletePage (\r | |
3316 | Private,\r | |
3317 | EFI_IMAGE_SECURITY_DATABASE,\r | |
3318 | &gEfiImageSecurityDatabaseGuid,\r | |
3319 | LABEL_DB_DELETE,\r | |
3320 | SECUREBOOT_DELETE_SIGNATURE_FROM_DB,\r | |
3321 | OPTION_DEL_DB_QUESTION_ID\r | |
3322 | );\r | |
3323 | break;\r | |
3324 | \r | |
3325 | case SECUREBOOT_DELETE_SIGNATURE_FROM_DBX:\r | |
3326 | UpdateDeletePage (\r | |
3327 | Private,\r | |
3328 | EFI_IMAGE_SECURITY_DATABASE1,\r | |
3329 | &gEfiImageSecurityDatabaseGuid,\r | |
3330 | LABEL_DBX_DELETE,\r | |
3331 | SECUREBOOT_DELETE_SIGNATURE_FROM_DBX,\r | |
3332 | OPTION_DEL_DBX_QUESTION_ID\r | |
3333 | );\r | |
3334 | \r | |
3335 | break;\r | |
3336 | \r | |
3337 | case SECUREBOOT_DELETE_SIGNATURE_FROM_DBT:\r | |
3338 | UpdateDeletePage (\r | |
3339 | Private,\r | |
3340 | EFI_IMAGE_SECURITY_DATABASE2,\r | |
3341 | &gEfiImageSecurityDatabaseGuid,\r | |
3342 | LABEL_DBT_DELETE,\r | |
3343 | SECUREBOOT_DELETE_SIGNATURE_FROM_DBT,\r | |
3344 | OPTION_DEL_DBT_QUESTION_ID\r | |
3345 | );\r | |
3346 | \r | |
3347 | break;\r | |
3348 | \r | |
3349 | case KEY_VALUE_SAVE_AND_EXIT_KEK:\r | |
3350 | Status = EnrollKeyExchangeKey (Private);\r | |
3351 | if (EFI_ERROR (Status)) {\r | |
3352 | CreatePopUp (\r | |
3353 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
3354 | &Key,\r | |
3355 | L"ERROR: Unsupported file type!",\r | |
3356 | L"Only supports DER-encoded X509 certificate",\r | |
3357 | NULL\r | |
3358 | );\r | |
3359 | }\r | |
3360 | break;\r | |
3361 | \r | |
3362 | case KEY_VALUE_SAVE_AND_EXIT_DB:\r | |
3363 | Status = EnrollSignatureDatabase (Private, EFI_IMAGE_SECURITY_DATABASE);\r | |
3364 | if (EFI_ERROR (Status)) {\r | |
3365 | CreatePopUp (\r | |
3366 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
3367 | &Key,\r | |
3368 | L"ERROR: Unsupported file type!",\r | |
3369 | L"Only supports DER-encoded X509 certificate and executable EFI image",\r | |
3370 | NULL\r | |
3371 | );\r | |
3372 | }\r | |
3373 | break;\r | |
3374 | \r | |
3375 | case KEY_VALUE_SAVE_AND_EXIT_DBX:\r | |
3376 | if (IsX509CertInDbx (Private, EFI_IMAGE_SECURITY_DATABASE1)) {\r | |
3377 | CreatePopUp (\r | |
3378 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
3379 | &Key,\r | |
3380 | L"Enrollment failed! Same certificate had already been in the dbx!",\r | |
3381 | NULL\r | |
3382 | );\r | |
3383 | break;\r | |
3384 | }\r | |
3385 | \r | |
3386 | if ((IfrNvData != NULL) && (IfrNvData->CertificateFormat < HASHALG_MAX)) {\r | |
3387 | Status = EnrollX509HashtoSigDB (\r | |
3388 | Private,\r | |
3389 | IfrNvData->CertificateFormat,\r | |
3390 | &IfrNvData->RevocationDate,\r | |
3391 | &IfrNvData->RevocationTime,\r | |
3392 | IfrNvData->AlwaysRevocation\r | |
3393 | );\r | |
3394 | } else {\r | |
3395 | Status = EnrollSignatureDatabase (Private, EFI_IMAGE_SECURITY_DATABASE1);\r | |
3396 | }\r | |
3397 | if (EFI_ERROR (Status)) {\r | |
3398 | CreatePopUp (\r | |
3399 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
3400 | &Key,\r | |
3401 | L"ERROR: Unsupported file type!",\r | |
3402 | L"Only supports DER-encoded X509 certificate and executable EFI image",\r | |
3403 | NULL\r | |
3404 | );\r | |
3405 | }\r | |
3406 | break;\r | |
3407 | \r | |
3408 | case KEY_VALUE_SAVE_AND_EXIT_DBT:\r | |
3409 | Status = EnrollSignatureDatabase (Private, EFI_IMAGE_SECURITY_DATABASE2);\r | |
3410 | if (EFI_ERROR (Status)) {\r | |
3411 | CreatePopUp (\r | |
3412 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
3413 | &Key,\r | |
3414 | L"ERROR: Unsupported file type!",\r | |
3415 | L"Only supports DER-encoded X509 certificate.",\r | |
3416 | NULL\r | |
3417 | );\r | |
3418 | }\r | |
3419 | break;\r | |
3420 | \r | |
3421 | default:\r | |
3422 | if (QuestionId >= FILE_OPTION_GOTO_OFFSET) {\r | |
3423 | UpdateFileExplorer (Private, QuestionId);\r | |
3424 | } else if ((QuestionId >= OPTION_DEL_KEK_QUESTION_ID) &&\r | |
3425 | (QuestionId < (OPTION_DEL_KEK_QUESTION_ID + OPTION_CONFIG_RANGE))) {\r | |
3426 | DeleteKeyExchangeKey (Private, QuestionId);\r | |
3427 | } else if ((QuestionId >= OPTION_DEL_DB_QUESTION_ID) &&\r | |
3428 | (QuestionId < (OPTION_DEL_DB_QUESTION_ID + OPTION_CONFIG_RANGE))) {\r | |
3429 | DeleteSignature (\r | |
3430 | Private,\r | |
3431 | EFI_IMAGE_SECURITY_DATABASE,\r | |
3432 | &gEfiImageSecurityDatabaseGuid,\r | |
3433 | LABEL_DB_DELETE,\r | |
3434 | SECUREBOOT_DELETE_SIGNATURE_FROM_DB,\r | |
3435 | OPTION_DEL_DB_QUESTION_ID,\r | |
3436 | QuestionId - OPTION_DEL_DB_QUESTION_ID\r | |
3437 | );\r | |
3438 | } else if ((QuestionId >= OPTION_DEL_DBX_QUESTION_ID) &&\r | |
3439 | (QuestionId < (OPTION_DEL_DBX_QUESTION_ID + OPTION_CONFIG_RANGE))) {\r | |
3440 | DeleteSignature (\r | |
3441 | Private,\r | |
3442 | EFI_IMAGE_SECURITY_DATABASE1,\r | |
3443 | &gEfiImageSecurityDatabaseGuid,\r | |
3444 | LABEL_DBX_DELETE,\r | |
3445 | SECUREBOOT_DELETE_SIGNATURE_FROM_DBX,\r | |
3446 | OPTION_DEL_DBX_QUESTION_ID,\r | |
3447 | QuestionId - OPTION_DEL_DBX_QUESTION_ID\r | |
3448 | );\r | |
3449 | } else if ((QuestionId >= OPTION_DEL_DBT_QUESTION_ID) &&\r | |
3450 | (QuestionId < (OPTION_DEL_DBT_QUESTION_ID + OPTION_CONFIG_RANGE))) {\r | |
3451 | DeleteSignature (\r | |
3452 | Private,\r | |
3453 | EFI_IMAGE_SECURITY_DATABASE2,\r | |
3454 | &gEfiImageSecurityDatabaseGuid,\r | |
3455 | LABEL_DBT_DELETE,\r | |
3456 | SECUREBOOT_DELETE_SIGNATURE_FROM_DBT,\r | |
3457 | OPTION_DEL_DBT_QUESTION_ID,\r | |
3458 | QuestionId - OPTION_DEL_DBT_QUESTION_ID\r | |
3459 | );\r | |
3460 | }\r | |
3461 | break;\r | |
3462 | }\r | |
3463 | } else if (Action == EFI_BROWSER_ACTION_CHANGED) {\r | |
3464 | switch (QuestionId) {\r | |
3465 | case KEY_SECURE_BOOT_ENABLE:\r | |
3466 | *ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_APPLY;\r | |
3467 | break;\r | |
3468 | case KEY_VALUE_SAVE_AND_EXIT_PK:\r | |
3469 | Status = EnrollPlatformKey (Private);\r | |
3470 | if (EFI_ERROR (Status)) {\r | |
3471 | UnicodeSPrint (\r | |
3472 | PromptString,\r | |
3473 | sizeof (PromptString),\r | |
3474 | L"Only DER encoded certificate file (%s) is supported.",\r | |
3475 | mSupportX509Suffix\r | |
3476 | );\r | |
3477 | CreatePopUp (\r | |
3478 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
3479 | &Key,\r | |
3480 | L"ERROR: Unsupported file type!",\r | |
3481 | PromptString,\r | |
3482 | NULL\r | |
3483 | );\r | |
3484 | } else {\r | |
3485 | *ActionRequest = EFI_BROWSER_ACTION_REQUEST_RESET;\r | |
3486 | }\r | |
3487 | break;\r | |
3488 | \r | |
3489 | case KEY_VALUE_NO_SAVE_AND_EXIT_PK:\r | |
3490 | case KEY_VALUE_NO_SAVE_AND_EXIT_KEK:\r | |
3491 | case KEY_VALUE_NO_SAVE_AND_EXIT_DB:\r | |
3492 | case KEY_VALUE_NO_SAVE_AND_EXIT_DBX:\r | |
3493 | case KEY_VALUE_NO_SAVE_AND_EXIT_DBT:\r | |
3494 | if (Private->FileContext->FHandle != NULL) {\r | |
3495 | CloseFile (Private->FileContext->FHandle);\r | |
3496 | Private->FileContext->FHandle = NULL;\r | |
3497 | Private->FileContext->FileName = NULL;\r | |
3498 | }\r | |
3499 | \r | |
3500 | if (Private->SignatureGUID != NULL) {\r | |
3501 | FreePool (Private->SignatureGUID);\r | |
3502 | Private->SignatureGUID = NULL;\r | |
3503 | }\r | |
3504 | *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;\r | |
3505 | break;\r | |
3506 | \r | |
3507 | case KEY_SECURE_BOOT_MODE:\r | |
3508 | mIsEnterSecureBootForm = FALSE;\r | |
3509 | break;\r | |
3510 | \r | |
3511 | case KEY_SECURE_BOOT_KEK_GUID:\r | |
3512 | case KEY_SECURE_BOOT_SIGNATURE_GUID_DB:\r | |
3513 | case KEY_SECURE_BOOT_SIGNATURE_GUID_DBX:\r | |
3514 | case KEY_SECURE_BOOT_SIGNATURE_GUID_DBT:\r | |
3515 | ASSERT (Private->SignatureGUID != NULL);\r | |
3516 | Status = StringToGuid (\r | |
3517 | IfrNvData->SignatureGuid,\r | |
3518 | StrLen (IfrNvData->SignatureGuid),\r | |
3519 | Private->SignatureGUID\r | |
3520 | );\r | |
3521 | if (EFI_ERROR (Status)) {\r | |
3522 | break;\r | |
3523 | }\r | |
3524 | \r | |
3525 | *ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_APPLY;\r | |
3526 | break;\r | |
3527 | \r | |
3528 | case KEY_SECURE_BOOT_DELETE_PK:\r | |
3529 | GetVariable2 (EFI_SETUP_MODE_NAME, &gEfiGlobalVariableGuid, (VOID**)&SetupMode, NULL);\r | |
3530 | if (SetupMode == NULL || (*SetupMode) == SETUP_MODE) {\r | |
3531 | IfrNvData->DeletePk = TRUE;\r | |
3532 | IfrNvData->HasPk = FALSE;\r | |
3533 | *ActionRequest = EFI_BROWSER_ACTION_REQUEST_SUBMIT;\r | |
3534 | } else {\r | |
3535 | IfrNvData->DeletePk = FALSE;\r | |
3536 | IfrNvData->HasPk = TRUE;\r | |
3537 | *ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_APPLY;\r | |
3538 | }\r | |
3539 | if (SetupMode != NULL) {\r | |
3540 | FreePool (SetupMode);\r | |
3541 | }\r | |
3542 | break;\r | |
3543 | default:\r | |
3544 | if (QuestionId >= FILE_OPTION_OFFSET && QuestionId < FILE_OPTION_GOTO_OFFSET) {\r | |
3545 | if (UpdateFileExplorer (Private, QuestionId)) {\r | |
3546 | *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;\r | |
3547 | }\r | |
3548 | }\r | |
3549 | break;\r | |
3550 | }\r | |
3551 | } else if (Action == EFI_BROWSER_ACTION_DEFAULT_STANDARD) {\r | |
3552 | if (QuestionId == KEY_HIDE_SECURE_BOOT) {\r | |
3553 | GetVariable2 (EFI_SECURE_BOOT_ENABLE_NAME, &gEfiSecureBootEnableDisableGuid, (VOID**)&SecureBootEnable, NULL);\r | |
3554 | if (SecureBootEnable == NULL) {\r | |
3555 | IfrNvData->HideSecureBoot = TRUE;\r | |
3556 | } else {\r | |
3557 | FreePool (SecureBootEnable);\r | |
3558 | IfrNvData->HideSecureBoot = FALSE;\r | |
3559 | }\r | |
3560 | Value->b = IfrNvData->HideSecureBoot;\r | |
3561 | }\r | |
3562 | } else if (Action == EFI_BROWSER_ACTION_FORM_CLOSE) {\r | |
3563 | //\r | |
3564 | // Force the platform back to Standard Mode once user leave the setup screen.\r | |
3565 | //\r | |
3566 | GetVariable2 (EFI_CUSTOM_MODE_NAME, &gEfiCustomModeEnableGuid, (VOID**)&SecureBootMode, NULL);\r | |
3567 | if (NULL != SecureBootMode && *SecureBootMode == CUSTOM_SECURE_BOOT_MODE) {\r | |
3568 | IfrNvData->SecureBootMode = STANDARD_SECURE_BOOT_MODE;\r | |
3569 | SetSecureBootMode(STANDARD_SECURE_BOOT_MODE);\r | |
3570 | }\r | |
3571 | if (SecureBootMode != NULL) {\r | |
3572 | FreePool (SecureBootMode);\r | |
3573 | }\r | |
3574 | }\r | |
3575 | \r | |
3576 | if (!EFI_ERROR (Status)) {\r | |
3577 | BufferSize = sizeof (SECUREBOOT_CONFIGURATION);\r | |
3578 | HiiSetBrowserData (&gSecureBootConfigFormSetGuid, mSecureBootStorageName, BufferSize, (UINT8*) IfrNvData, NULL);\r | |
3579 | }\r | |
3580 | FreePool (IfrNvData);\r | |
3581 | \r | |
3582 | return EFI_SUCCESS;\r | |
3583 | }\r | |
3584 | \r | |
3585 | /**\r | |
3586 | This function publish the SecureBoot configuration Form.\r | |
3587 | \r | |
3588 | @param[in, out] PrivateData Points to SecureBoot configuration private data.\r | |
3589 | \r | |
3590 | @retval EFI_SUCCESS HII Form is installed successfully.\r | |
3591 | @retval EFI_OUT_OF_RESOURCES Not enough resource for HII Form installation.\r | |
3592 | @retval Others Other errors as indicated.\r | |
3593 | \r | |
3594 | **/\r | |
3595 | EFI_STATUS\r | |
3596 | InstallSecureBootConfigForm (\r | |
3597 | IN OUT SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData\r | |
3598 | )\r | |
3599 | {\r | |
3600 | EFI_STATUS Status;\r | |
3601 | EFI_HII_HANDLE HiiHandle;\r | |
3602 | EFI_HANDLE DriverHandle;\r | |
3603 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
3604 | \r | |
3605 | DriverHandle = NULL;\r | |
3606 | ConfigAccess = &PrivateData->ConfigAccess;\r | |
3607 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
3608 | &DriverHandle,\r | |
3609 | &gEfiDevicePathProtocolGuid,\r | |
3610 | &mSecureBootHiiVendorDevicePath,\r | |
3611 | &gEfiHiiConfigAccessProtocolGuid,\r | |
3612 | ConfigAccess,\r | |
3613 | NULL\r | |
3614 | );\r | |
3615 | if (EFI_ERROR (Status)) {\r | |
3616 | return Status;\r | |
3617 | }\r | |
3618 | \r | |
3619 | PrivateData->DriverHandle = DriverHandle;\r | |
3620 | \r | |
3621 | //\r | |
3622 | // Publish the HII package list\r | |
3623 | //\r | |
3624 | HiiHandle = HiiAddPackages (\r | |
3625 | &gSecureBootConfigFormSetGuid,\r | |
3626 | DriverHandle,\r | |
3627 | SecureBootConfigDxeStrings,\r | |
3628 | SecureBootConfigBin,\r | |
3629 | NULL\r | |
3630 | );\r | |
3631 | if (HiiHandle == NULL) {\r | |
3632 | gBS->UninstallMultipleProtocolInterfaces (\r | |
3633 | DriverHandle,\r | |
3634 | &gEfiDevicePathProtocolGuid,\r | |
3635 | &mSecureBootHiiVendorDevicePath,\r | |
3636 | &gEfiHiiConfigAccessProtocolGuid,\r | |
3637 | ConfigAccess,\r | |
3638 | NULL\r | |
3639 | );\r | |
3640 | return EFI_OUT_OF_RESOURCES;\r | |
3641 | }\r | |
3642 | \r | |
3643 | PrivateData->HiiHandle = HiiHandle;\r | |
3644 | \r | |
3645 | PrivateData->FileContext = AllocateZeroPool (sizeof (SECUREBOOT_FILE_CONTEXT));\r | |
3646 | PrivateData->MenuEntry = AllocateZeroPool (sizeof (SECUREBOOT_MENU_ENTRY));\r | |
3647 | \r | |
3648 | if (PrivateData->FileContext == NULL || PrivateData->MenuEntry == NULL) {\r | |
3649 | UninstallSecureBootConfigForm (PrivateData);\r | |
3650 | return EFI_OUT_OF_RESOURCES;\r | |
3651 | }\r | |
3652 | \r | |
3653 | PrivateData->FeCurrentState = FileExplorerStateInActive;\r | |
3654 | PrivateData->FeDisplayContext = FileExplorerDisplayUnknown;\r | |
3655 | \r | |
3656 | InitializeListHead (&FsOptionMenu.Head);\r | |
3657 | InitializeListHead (&DirectoryMenu.Head);\r | |
3658 | \r | |
3659 | //\r | |
3660 | // Init OpCode Handle and Allocate space for creation of Buffer\r | |
3661 | //\r | |
3662 | mStartOpCodeHandle = HiiAllocateOpCodeHandle ();\r | |
3663 | if (mStartOpCodeHandle == NULL) {\r | |
3664 | UninstallSecureBootConfigForm (PrivateData);\r | |
3665 | return EFI_OUT_OF_RESOURCES;\r | |
3666 | }\r | |
3667 | \r | |
3668 | mEndOpCodeHandle = HiiAllocateOpCodeHandle ();\r | |
3669 | if (mEndOpCodeHandle == NULL) {\r | |
3670 | UninstallSecureBootConfigForm (PrivateData);\r | |
3671 | return EFI_OUT_OF_RESOURCES;\r | |
3672 | }\r | |
3673 | \r | |
3674 | //\r | |
3675 | // Create Hii Extend Label OpCode as the start opcode\r | |
3676 | //\r | |
3677 | mStartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (\r | |
3678 | mStartOpCodeHandle,\r | |
3679 | &gEfiIfrTianoGuid,\r | |
3680 | NULL,\r | |
3681 | sizeof (EFI_IFR_GUID_LABEL)\r | |
3682 | );\r | |
3683 | mStartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r | |
3684 | \r | |
3685 | //\r | |
3686 | // Create Hii Extend Label OpCode as the end opcode\r | |
3687 | //\r | |
3688 | mEndLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (\r | |
3689 | mEndOpCodeHandle,\r | |
3690 | &gEfiIfrTianoGuid,\r | |
3691 | NULL,\r | |
3692 | sizeof (EFI_IFR_GUID_LABEL)\r | |
3693 | );\r | |
3694 | mEndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r | |
3695 | mEndLabel->Number = LABEL_END;\r | |
3696 | \r | |
3697 | return EFI_SUCCESS;\r | |
3698 | }\r | |
3699 | \r | |
3700 | /**\r | |
3701 | This function removes SecureBoot configuration Form.\r | |
3702 | \r | |
3703 | @param[in, out] PrivateData Points to SecureBoot configuration private data.\r | |
3704 | \r | |
3705 | **/\r | |
3706 | VOID\r | |
3707 | UninstallSecureBootConfigForm (\r | |
3708 | IN OUT SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData\r | |
3709 | )\r | |
3710 | {\r | |
3711 | //\r | |
3712 | // Uninstall HII package list\r | |
3713 | //\r | |
3714 | if (PrivateData->HiiHandle != NULL) {\r | |
3715 | HiiRemovePackages (PrivateData->HiiHandle);\r | |
3716 | PrivateData->HiiHandle = NULL;\r | |
3717 | }\r | |
3718 | \r | |
3719 | //\r | |
3720 | // Uninstall HII Config Access Protocol\r | |
3721 | //\r | |
3722 | if (PrivateData->DriverHandle != NULL) {\r | |
3723 | gBS->UninstallMultipleProtocolInterfaces (\r | |
3724 | PrivateData->DriverHandle,\r | |
3725 | &gEfiDevicePathProtocolGuid,\r | |
3726 | &mSecureBootHiiVendorDevicePath,\r | |
3727 | &gEfiHiiConfigAccessProtocolGuid,\r | |
3728 | &PrivateData->ConfigAccess,\r | |
3729 | NULL\r | |
3730 | );\r | |
3731 | PrivateData->DriverHandle = NULL;\r | |
3732 | }\r | |
3733 | \r | |
3734 | if (PrivateData->SignatureGUID != NULL) {\r | |
3735 | FreePool (PrivateData->SignatureGUID);\r | |
3736 | }\r | |
3737 | \r | |
3738 | if (PrivateData->MenuEntry != NULL) {\r | |
3739 | FreePool (PrivateData->MenuEntry);\r | |
3740 | }\r | |
3741 | \r | |
3742 | if (PrivateData->FileContext != NULL) {\r | |
3743 | FreePool (PrivateData->FileContext);\r | |
3744 | }\r | |
3745 | \r | |
3746 | FreePool (PrivateData);\r | |
3747 | \r | |
3748 | FreeMenu (&DirectoryMenu);\r | |
3749 | FreeMenu (&FsOptionMenu);\r | |
3750 | \r | |
3751 | if (mStartOpCodeHandle != NULL) {\r | |
3752 | HiiFreeOpCodeHandle (mStartOpCodeHandle);\r | |
3753 | }\r | |
3754 | \r | |
3755 | if (mEndOpCodeHandle != NULL) {\r | |
3756 | HiiFreeOpCodeHandle (mEndOpCodeHandle);\r | |
3757 | }\r | |
3758 | }\r |