antirollback.h File Reference

#include <types.h>
#include <security/tpm/tspi.h>
#include <vb2_sha.h>

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Macros
#define	FIRMWARE_NV_INDEX   0x1007
#define	KERNEL_NV_INDEX   0x1008
#define	BACKUP_NV_INDEX   0x1009
#define	FWMP_NV_INDEX   0x100a
#define	MRC_REC_HASH_NV_INDEX   0x100b
#define	MRC_RW_HASH_NV_INDEX   0x100d
#define	HASH_NV_SIZE   VB2_SHA256_DIGEST_SIZE
#define	WIDEVINE_COUNTER_NV_INDEX(n)   (0x3000 + (n))
#define	NUM_WIDEVINE_COUNTERS   4
#define	WIDEVINE_COUNTER_NAME   "Widevine Secure Counter"
#define	WIDEVINE_COUNTER_SIZE   sizeof(uint64_t)
#define	ZTE_BOARD_ID_NV_INDEX   0x3fff00
#define	ZTE_RMA_SN_BITS_INDEX   0x3fff01
#define	ZTE_RMA_BYTES_COUNTER_INDEX   0x3fff04
#define	FLAG_LAST_BOOT_DEVELOPER   0x01

Functions
uint32_t	antirollback_read_space_firmware (struct vb2_context *ctx)
uint32_t	antirollback_write_space_firmware (struct vb2_context *ctx)
	Write may be called if the versions change. More...
uint32_t	antirollback_read_space_kernel (struct vb2_context *ctx)
	Read and write kernel space in TPM. More...
uint32_t	antirollback_write_space_kernel (struct vb2_context *ctx)
uint32_t	antirollback_lock_space_firmware (void)
	Lock must be called. More...
uint32_t	antirollback_read_space_mrc_hash (uint32_t index, uint8_t *data, uint32_t size)
uint32_t	antirollback_write_space_mrc_hash (uint32_t index, const uint8_t *data, uint32_t size)
uint32_t	antirollback_lock_space_mrc_hash (uint32_t index)

Macro Definition Documentation

BACKUP_NV_INDEX

#define BACKUP_NV_INDEX   0x1009

Definition at line 23 of file antirollback.h.

FIRMWARE_NV_INDEX

#define FIRMWARE_NV_INDEX   0x1007

Definition at line 19 of file antirollback.h.

FLAG_LAST_BOOT_DEVELOPER

#define FLAG_LAST_BOOT_DEVELOPER   0x01

Definition at line 49 of file antirollback.h.

FWMP_NV_INDEX

#define FWMP_NV_INDEX   0x100a

Definition at line 24 of file antirollback.h.

HASH_NV_SIZE

#define HASH_NV_SIZE   VB2_SHA256_DIGEST_SIZE

Definition at line 30 of file antirollback.h.

KERNEL_NV_INDEX

#define KERNEL_NV_INDEX   0x1008

Definition at line 20 of file antirollback.h.

MRC_REC_HASH_NV_INDEX

#define MRC_REC_HASH_NV_INDEX   0x100b

Definition at line 26 of file antirollback.h.

MRC_RW_HASH_NV_INDEX

#define MRC_RW_HASH_NV_INDEX   0x100d

Definition at line 29 of file antirollback.h.

NUM_WIDEVINE_COUNTERS

#define NUM_WIDEVINE_COUNTERS   4

Definition at line 33 of file antirollback.h.

WIDEVINE_COUNTER_NAME

#define WIDEVINE_COUNTER_NAME   "Widevine Secure Counter"

Definition at line 34 of file antirollback.h.

WIDEVINE_COUNTER_NV_INDEX

#define WIDEVINE_COUNTER_NV_INDEX

(

n

)

(0x3000 + (n))

Definition at line 32 of file antirollback.h.

WIDEVINE_COUNTER_SIZE

#define WIDEVINE_COUNTER_SIZE   sizeof(uint64_t)

Definition at line 35 of file antirollback.h.

ZTE_BOARD_ID_NV_INDEX

#define ZTE_BOARD_ID_NV_INDEX   0x3fff00

Definition at line 37 of file antirollback.h.

ZTE_RMA_BYTES_COUNTER_INDEX

#define ZTE_RMA_BYTES_COUNTER_INDEX   0x3fff04

Definition at line 39 of file antirollback.h.

ZTE_RMA_SN_BITS_INDEX

#define ZTE_RMA_SN_BITS_INDEX   0x3fff01

Definition at line 38 of file antirollback.h.

Function Documentation

antirollback_lock_space_firmware()

uint32_t antirollback_lock_space_firmware

(

void

)

Lock must be called.

Definition at line 52 of file secdata_mock.c.

References tlcl_set_global_lock().

Referenced by verstage_main().

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antirollback_lock_space_mrc_hash()

uint32_t antirollback_lock_space_mrc_hash

(

uint32_t

index

)

Definition at line 57 of file secdata_mock.c.

Referenced by verstage_main().

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antirollback_read_space_firmware()

uint32_t antirollback_read_space_firmware

(

struct vb2_context *

ctx

)

Definition at line 18 of file secdata_mock.c.

References factory_initialize_tpm(), read_space_firmware(), RETURN_ON_FAILURE, TPM_E_BADINDEX, TPM_E_CORRUPTED_STATE, TPM_SUCCESS, and VBDEBUG.

Referenced by verstage_main().

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antirollback_read_space_kernel()

uint32_t antirollback_read_space_kernel

(

struct vb2_context *

ctx

)

Read and write kernel space in TPM.

Definition at line 29 of file secdata_mock.c.

References BIOS_ERR, CONFIG, KERNEL_NV_INDEX, printk, RETURN_ON_FAILURE, tlcl_get_permissions(), tlcl_read(), TPM2, TPM_E_CORRUPTED_STATE, TPM_E_RANGE, TPM_NV_PER_PPWRITE, TPM_SUCCESS, and VBDEBUG.

Referenced by verstage_main().

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antirollback_read_space_mrc_hash()

uint32_t antirollback_read_space_mrc_hash	(	uint32_t	index,
		uint8_t *	data,
		uint32_t	size
	)

Definition at line 62 of file secdata_mock.c.

Referenced by mrc_cache_verify_hash().

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antirollback_write_space_firmware()

uint32_t antirollback_write_space_firmware

(

struct vb2_context *

ctx

)

Write may be called if the versions change.

Definition at line 24 of file secdata_mock.c.

References CONFIG, FIRMWARE_NV_INDEX, safe_write(), and tlcl_cr50_enable_nvcommits().

Referenced by vboot_save_data().

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antirollback_write_space_kernel()

uint32_t antirollback_write_space_kernel

(

struct vb2_context *

ctx

)

Definition at line 47 of file secdata_mock.c.

References CONFIG, KERNEL_NV_INDEX, safe_write(), and tlcl_cr50_enable_nvcommits().

Referenced by vboot_save_data().

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antirollback_write_space_mrc_hash()

uint32_t antirollback_write_space_mrc_hash	(	uint32_t	index,
		const uint8_t *	data,
		uint32_t	size
	)

Definition at line 67 of file secdata_mock.c.

Referenced by mrc_cache_update_hash().

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