nv_key.c 文件参考

#include "nv_key.h"
#include "string.h"
#include "nv_porting.h"
#include "uapi_crc.h"
#include "nv_nvregion.h"
#include "common_def.h"

nv_key.c 的引用(Include)关系图:

宏定义
#define	KV_CLEARTEXT_PADDING_SIZE   (1UL << 2) /* Currently these both need to be a power of 2... */
#define	KV_CIPHERTEXT_PADDING_SIZE   (1UL << 4) /* ...due to implementation of kv_padded_length */
#define	kv_padded_length(d, s)   (((d) + ((s) - 1)) & ~((s) - 1))
#define	kv_padded_cleartext_length(d)   kv_padded_length(d, KV_CLEARTEXT_PADDING_SIZE)
#define	kv_padded_ciphertext_length(d)   kv_padded_length(d, KV_CIPHERTEXT_PADDING_SIZE)
#define	KV_COPY_SIZE_ALIGN   32

函数
errcode_t	kv_key_helper_copy_flash (uint32_t dest_location, uint32_t src_location, uint16_t length)
errcode_t	kv_key_direct_write_flash (uint32_t dest, uint32_t length, const uint8_t *src)
errcode_t	kv_key_direct_erase_flash (uint32_t dest, const uint32_t size)
errcode_t	kv_key_write_flash (uint32_t dest, uint32_t length, const uint8_t *src)
errcode_t	kv_key_erase_flash (uint32_t dest, const uint32_t size)
STATIC errcode_t	kv_key_decode_flash (uintptr_t dest, const uintptr_t src, uint32_t length, uint32_t crypto_handle)
STATIC errcode_t	kv_key_read_data_from_flash (uintptr_t dest, const uintptr_t src, uint32_t length, uint32_t crypto_handle)
errcode_t	kv_key_read_data (kv_key_handle_t *key, uint8_t *dest_location)
STATIC errcode_t	kv_helper_compare_key_data_chunks (const kv_key_handle_t *key, const uint8_t *compare_data, kv_helper_compare_key_data_info_t *info)
errcode_t	kv_helper_compare_key_data (kv_key_handle_t *key, const uint8_t *compare_data, uint16_t compare_length)
bool	kv_key_is_erased (const kv_key_handle_t *key)
bool	kv_key_is_valid (kv_key_handle_t *key)
errcode_t	kv_key_does_filter_match (kv_key_handle_t *key, kv_key_filter_t *search_filter)
STATIC bool	kv_key_header_is_full_ff (kv_key_header_t *key_header, uint8_t len)
errcode_t	kv_key_get_handle_from_location (kv_key_location key_location, kv_key_handle_t *key)
errcode_t	kv_key_locations_in_same_page (kv_key_location first_key_location, kv_key_location second_key_location)
errcode_t	kv_key_get_next_magic_position (kv_key_location key_location, kv_key_handle_t *key)
STATIC errcode_t	kv_key_get_next_key_from_location (kv_key_location cur_key_loc, kv_key_location next_key_loc, kv_key_handle_t *key)
STATIC errcode_t	kv_key_get_next_handle_with_corrupt_key (kv_key_handle_t *key, kv_key_validate_status_t key_status)
STATIC errcode_t	kv_key_get_next_handle_direct (kv_key_handle_t *key)
errcode_t	kv_key_get_next_handle (kv_key_handle_t *key, kv_key_validate_status_t key_status)
STATIC void	kv_key_fix_header_for_validate (kv_key_header_t *key_header, bool ignor_invalid)
STATIC void	kv_key_hash_crc_tag_start (const kv_key_handle_t *key, uint32_t *crc_ret)
STATIC void	kv_key_hash_crc_tag_update (const kv_key_handle_t *key, uint8_t *data_chunk, uint32_t data_len, uint32_t *crc_ret)
STATIC void	kv_key_hash_crc_tag_finish (const kv_key_handle_t *key, uint8_t *calculated_hash, uint32_t crc_value, uint32_t crypto_handle)
STATIC errcode_t	kv_key_hash_crc_tag_verify (const kv_key_handle_t *key, uint8_t *read_hash_crc, uint8_t *cal_hash_crc, uint32_t crypto_handle, bool only_crc)
STATIC errcode_t	kv_key_validate_hash_chunks (kv_key_handle_t *key, uint8_t *read_data_chunk, uint8_t *cal_hash_crc, uint32_t crypto_handle, bool ignor_invalid)
errcode_t	kv_key_validate_integrity (kv_key_handle_t *key, bool ignor_invalid)
errcode_t	kv_key_validation (kv_key_handle_t *key, bool ignor_invalid)
kv_attributes_t	kv_key_attributes (const kv_key_handle_t *key)
uint16_t	kv_key_padded_data_length (kv_attributes_t attributes, uint16_t unpadded_length)
uint16_t	kv_key_flash_size (kv_key_handle_t *key)
void	kv_key_build_from_new (kv_key_handle_t *key, const kv_key_details_t *new_key, kv_key_location key_location)
uint32_t	kv_crc32_swap (uint32_t crc)

变量
uint8_t	g_nv_header_magic = 0xA9

宏定义说明

KV_CIPHERTEXT_PADDING_SIZE

#define KV_CIPHERTEXT_PADDING_SIZE   (1UL << 4) /* ...due to implementation of kv_padded_length */

KV_CLEARTEXT_PADDING_SIZE

#define KV_CLEARTEXT_PADDING_SIZE   (1UL << 2) /* Currently these both need to be a power of 2... */

KV_COPY_SIZE_ALIGN

#define KV_COPY_SIZE_ALIGN   32

kv_padded_ciphertext_length

#define kv_padded_ciphertext_length

(

d

)

kv_padded_length(d, KV_CIPHERTEXT_PADDING_SIZE)

kv_padded_cleartext_length

#define kv_padded_cleartext_length

(

d

)

kv_padded_length(d, KV_CLEARTEXT_PADDING_SIZE)

kv_padded_length

#define kv_padded_length	(		d,
			s
	)		(((d) + ((s) - 1)) & ~((s) - 1))

函数说明

kv_crc32_swap()

uint32_t kv_crc32_swap

(

uint32_t

crc

)

kv_helper_compare_key_data()

errcode_t kv_helper_compare_key_data	(	kv_key_handle_t *	key,
		const uint8_t *	compare_data,
		uint16_t	compare_length
	)

kv_helper_compare_key_data_chunks()

STATIC errcode_t kv_helper_compare_key_data_chunks	(	const kv_key_handle_t *	key,
		const uint8_t *	compare_data,
		kv_helper_compare_key_data_info_t *	info
	)

kv_key_attributes()

kv_attributes_t kv_key_attributes

(

const kv_key_handle_t *

key

)

kv_key_build_from_new()

void kv_key_build_from_new	(	kv_key_handle_t *	key,
		const kv_key_details_t *	new_key,
		kv_key_location	key_location
	)

kv_key_decode_flash()

STATIC errcode_t kv_key_decode_flash	(	uintptr_t	dest,
		const uintptr_t	src,
		uint32_t	length,
		uint32_t	crypto_handle
	)

kv_key_direct_erase_flash()

errcode_t kv_key_direct_erase_flash	(	uint32_t	dest,
		const uint32_t	size
	)

kv_key_direct_write_flash()

errcode_t kv_key_direct_write_flash	(	uint32_t	dest,
		uint32_t	length,
		const uint8_t *	src
	)

kv_key_does_filter_match()

errcode_t kv_key_does_filter_match	(	kv_key_handle_t *	key,
		kv_key_filter_t *	search_filter
	)

kv_key_erase_flash()

errcode_t kv_key_erase_flash	(	uint32_t	dest,
		const uint32_t	size
	)

kv_key_fix_header_for_validate()

STATIC void kv_key_fix_header_for_validate	(	kv_key_header_t *	key_header,
		bool	ignor_invalid
	)

kv_key_flash_size()

uint16_t kv_key_flash_size

(

kv_key_handle_t *

key

)

kv_key_get_handle_from_location()

errcode_t kv_key_get_handle_from_location	(	kv_key_location	key_location,
		kv_key_handle_t *	key
	)

kv_key_get_next_handle()

errcode_t kv_key_get_next_handle	(	kv_key_handle_t *	key,
		kv_key_validate_status_t	key_status
	)

kv_key_get_next_handle_direct()

STATIC errcode_t kv_key_get_next_handle_direct

(

kv_key_handle_t *

key

)

kv_key_get_next_handle_with_corrupt_key()

STATIC errcode_t kv_key_get_next_handle_with_corrupt_key	(	kv_key_handle_t *	key,
		kv_key_validate_status_t	key_status
	)

kv_key_get_next_key_from_location()

STATIC errcode_t kv_key_get_next_key_from_location	(	kv_key_location	cur_key_loc,
		kv_key_location	next_key_loc,
		kv_key_handle_t *	key
	)

kv_key_get_next_magic_position()

errcode_t kv_key_get_next_magic_position	(	kv_key_location	key_location,
		kv_key_handle_t *	key
	)

kv_key_hash_crc_tag_finish()

STATIC void kv_key_hash_crc_tag_finish	(	const kv_key_handle_t *	key,
		uint8_t *	calculated_hash,
		uint32_t	crc_value,
		uint32_t	crypto_handle
	)

kv_key_hash_crc_tag_start()

STATIC void kv_key_hash_crc_tag_start	(	const kv_key_handle_t *	key,
		uint32_t *	crc_ret
	)

kv_key_hash_crc_tag_update()

STATIC void kv_key_hash_crc_tag_update	(	const kv_key_handle_t *	key,
		uint8_t *	data_chunk,
		uint32_t	data_len,
		uint32_t *	crc_ret
	)

kv_key_hash_crc_tag_verify()

STATIC errcode_t kv_key_hash_crc_tag_verify	(	const kv_key_handle_t *	key,
		uint8_t *	read_hash_crc,
		uint8_t *	cal_hash_crc,
		uint32_t	crypto_handle,
		bool	only_crc
	)

kv_key_header_is_full_ff()

STATIC bool kv_key_header_is_full_ff	(	kv_key_header_t *	key_header,
		uint8_t	len
	)

kv_key_helper_copy_flash()

errcode_t kv_key_helper_copy_flash	(	uint32_t	dest_location,
		uint32_t	src_location,
		uint16_t	length
	)

kv_key_is_erased()

bool kv_key_is_erased

(

const kv_key_handle_t *

key

)

kv_key_is_valid()

bool kv_key_is_valid

(

kv_key_handle_t *

key

)

kv_key_locations_in_same_page()

errcode_t kv_key_locations_in_same_page	(	kv_key_location	first_key_location,
		kv_key_location	second_key_location
	)

kv_key_padded_data_length()

uint16_t kv_key_padded_data_length	(	kv_attributes_t	attributes,
		uint16_t	unpadded_length
	)

kv_key_read_data()

errcode_t kv_key_read_data	(	kv_key_handle_t *	key,
		uint8_t *	dest_location
	)

kv_key_read_data_from_flash()

STATIC errcode_t kv_key_read_data_from_flash	(	uintptr_t	dest,
		const uintptr_t	src,
		uint32_t	length,
		uint32_t	crypto_handle
	)

kv_key_validate_hash_chunks()

STATIC errcode_t kv_key_validate_hash_chunks	(	kv_key_handle_t *	key,
		uint8_t *	read_data_chunk,
		uint8_t *	cal_hash_crc,
		uint32_t	crypto_handle,
		bool	ignor_invalid
	)

kv_key_validate_integrity()

errcode_t kv_key_validate_integrity	(	kv_key_handle_t *	key,
		bool	ignor_invalid
	)

kv_key_validation()

errcode_t kv_key_validation	(	kv_key_handle_t *	key,
		bool	ignor_invalid
	)

kv_key_write_flash()

errcode_t kv_key_write_flash	(	uint32_t	dest,
		uint32_t	length,
		const uint8_t *	src
	)

变量说明

g_nv_header_magic

uint8_t g_nv_header_magic = 0xA9