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1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved. | 1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
2 * Use of this source code is governed by a BSD-style license that can be | 2 * Use of this source code is governed by a BSD-style license that can be |
3 * found in the LICENSE file. | 3 * found in the LICENSE file. |
4 * | 4 * |
5 * Functions for querying, manipulating and locking rollback indices | 5 * Functions for querying, manipulating and locking rollback indices |
6 * stored in the TPM NVRAM. | 6 * stored in the TPM NVRAM. |
7 */ | 7 */ |
8 | 8 |
9 #include "rollback_index.h" | 9 #include "rollback_index.h" |
10 | 10 |
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74 } | 74 } |
75 return result; | 75 return result; |
76 } | 76 } |
77 | 77 |
78 /* Creates the NVRAM spaces, and sets their initial values as needed. | 78 /* Creates the NVRAM spaces, and sets their initial values as needed. |
79 */ | 79 */ |
80 static uint32_t InitializeSpaces(void) { | 80 static uint32_t InitializeSpaces(void) { |
81 uint32_t zero = 0; | 81 uint32_t zero = 0; |
82 uint32_t firmware_perm = TPM_NV_PER_GLOBALLOCK | TPM_NV_PER_PPWRITE; | 82 uint32_t firmware_perm = TPM_NV_PER_GLOBALLOCK | TPM_NV_PER_PPWRITE; |
83 | 83 |
84 debug("Initializing spaces\n"); | 84 VBDEBUG(("Initializing spaces\n")); |
85 | 85 |
86 RETURN_ON_FAILURE(TlclSetNvLocked()); | 86 RETURN_ON_FAILURE(TlclSetNvLocked()); |
87 | 87 |
88 RETURN_ON_FAILURE(TlclDefineSpace(FIRMWARE_VERSIONS_NV_INDEX, | 88 RETURN_ON_FAILURE(TlclDefineSpace(FIRMWARE_VERSIONS_NV_INDEX, |
89 firmware_perm, sizeof(uint32_t))); | 89 firmware_perm, sizeof(uint32_t))); |
90 RETURN_ON_FAILURE(SafeWrite(FIRMWARE_VERSIONS_NV_INDEX, | 90 RETURN_ON_FAILURE(SafeWrite(FIRMWARE_VERSIONS_NV_INDEX, |
91 (uint8_t*) &zero, sizeof(uint32_t))); | 91 (uint8_t*) &zero, sizeof(uint32_t))); |
92 | 92 |
93 RETURN_ON_FAILURE(InitializeKernelVersionsSpaces()); | 93 RETURN_ON_FAILURE(InitializeKernelVersionsSpaces()); |
94 | 94 |
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394 return TPM_SUCCESS; | 394 return TPM_SUCCESS; |
395 } | 395 } |
396 | 396 |
397 uint32_t RollbackKernelWrite(uint16_t key_version, uint16_t version) { | 397 uint32_t RollbackKernelWrite(uint16_t key_version, uint16_t version) { |
398 return TPM_SUCCESS; | 398 return TPM_SUCCESS; |
399 } | 399 } |
400 | 400 |
401 uint32_t RollbackKernelLock(void) { | 401 uint32_t RollbackKernelLock(void) { |
402 return TPM_SUCCESS; | 402 return TPM_SUCCESS; |
403 } | 403 } |
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