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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 verifying a verified boot firmware image. | 5 * Functions for verifying a verified boot firmware image. |
6 * (Firmware Portion) | 6 * (Firmware Portion) |
7 */ | 7 */ |
8 | 8 |
9 #include "firmware_image_fw.h" | 9 #include "firmware_image_fw.h" |
10 | 10 |
11 #include "padding.h" | 11 #include "cryptolib.h" |
12 #include "rollback_index.h" | 12 #include "rollback_index.h" |
13 #include "rsa_utility.h" | |
14 #include "sha_utility.h" | |
15 #include "utility.h" | 13 #include "utility.h" |
16 | 14 |
17 /* Macro to determine the size of a field structure in the FirmwareImage | 15 /* Macro to determine the size of a field structure in the FirmwareImage |
18 * structure. */ | 16 * structure. */ |
19 #define FIELD_LEN(field) (sizeof(((FirmwareImage*)0)->field)) | 17 #define FIELD_LEN(field) (sizeof(((FirmwareImage*)0)->field)) |
20 | 18 |
21 char* kVerifyFirmwareErrors[VERIFY_FIRMWARE_MAX] = { | 19 char* kVerifyFirmwareErrors[VERIFY_FIRMWARE_MAX] = { |
22 "Success.", | 20 "Success.", |
23 "Invalid Image.", | 21 "Invalid Image.", |
24 "Root Key Signature Failed.", | 22 "Root Key Signature Failed.", |
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314 * attempted. | 312 * attempted. |
315 * If FirmwareB is not a rollback, then we attempt to do the verification. | 313 * If FirmwareB is not a rollback, then we attempt to do the verification. |
316 */ | 314 */ |
317 if (stored_lversion <= firmwareB_lversion && | 315 if (stored_lversion <= firmwareB_lversion && |
318 (VERIFY_FIRMWARE_SUCCESS == VerifyFirmware(root_key_blob, firmwareB))) | 316 (VERIFY_FIRMWARE_SUCCESS == VerifyFirmware(root_key_blob, firmwareB))) |
319 return BOOT_FIRMWARE_B_CONTINUE; | 317 return BOOT_FIRMWARE_B_CONTINUE; |
320 } | 318 } |
321 /* D'oh: No bootable firmware. */ | 319 /* D'oh: No bootable firmware. */ |
322 return BOOT_FIRMWARE_RECOVERY_CONTINUE; | 320 return BOOT_FIRMWARE_RECOVERY_CONTINUE; |
323 } | 321 } |
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