vboot_firmware/include/rollback_index.h - Issue 2735004: Uses TPM return codes.

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Side by Side Diff: vboot_firmware/include/rollback_index.h

Issue 2735004: Uses TPM return codes. (Closed) Base URL: ssh://gitrw.chromium.org/vboot_reference.git

Patch Set: Created 10 years, 6 months ago

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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 #ifndef VBOOT_REFERENCE_ROLLBACK_INDEX_H_	9 #ifndef VBOOT_REFERENCE_ROLLBACK_INDEX_H_

10 #define VBOOT_REFERENCE_ROLLBACK_INDEX_H_	10 #define VBOOT_REFERENCE_ROLLBACK_INDEX_H_

11	11

12 #include <stdint.h>	12 #include <stdint.h>

13	13

14 extern uint16_t g_firmware_key_version;	14 extern uint16_t g_firmware_key_version;

15 extern uint16_t g_firmware_version;	15 extern uint16_t g_firmware_version;

16 extern uint16_t g_kernel_key_version;	16 extern uint16_t g_kernel_key_version;

17 extern uint16_t g_kernel_version;	17 extern uint16_t g_kernel_version;

18	18

19 /* Rollback version types. */	19 /* Rollback version types. */

20 #define FIRMWARE_VERSIONS 0	20 #define FIRMWARE_VERSIONS 0

21 #define KERNEL_VERSIONS 1	21 #define KERNEL_VERSIONS 1

22	22

23 /* TPM NVRAM location indices. */	23 /* TPM NVRAM location indices. */

24 #define FIRMWARE_VERSIONS_NV_INDEX 0x1001	24 #define FIRMWARE_VERSIONS_NV_INDEX 0x1001

25 #define KERNEL_VERSIONS_NV_INDEX 0x1002	25 #define KERNEL_VERSIONS_NV_INDEX 0x1002

26 #define TPM_IS_INITIALIZED_NV_INDEX 0x1003	26 #define TPM_IS_INITIALIZED_NV_INDEX 0x1003

27 #define KERNEL_VERSIONS_BACKUP_NV_INDEX 0x1004	27 #define KERNEL_VERSIONS_BACKUP_NV_INDEX 0x1004

28 #define KERNEL_BACKUP_IS_VALID_NV_INDEX 0x1005	28 #define KERNEL_BACKUP_IS_VALID_NV_INDEX 0x1005

29	29

30	30 /* All functions return 0 if successful, non-zero if error */

31 void SetupTPM(void);	31 int SetupTPM(void);

32 void GetStoredVersions(int type, uint16_t* key_version, uint16_t* version);	32 int GetStoredVersions(int type, uint16_t* key_version, uint16_t* version);

33 int WriteStoredVersions(int type, uint16_t key_version, uint16_t version);	33 int WriteStoredVersions(int type, uint16_t key_version, uint16_t version);

34 void LockFirmwareVersions();	34 int LockFirmwareVersions();

35 void LockKernelVersionsByLockingPP();	35 int LockKernelVersionsByLockingPP();

36	36

37 #endif /* VBOOT_REFERENCE_ROLLBACK_INDEX_H_ */	37 #endif /* VBOOT_REFERENCE_ROLLBACK_INDEX_H_ */

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