luks2_json_format.c File Reference

#include "luks2_internal.h"
#include <uuid/uuid.h>
#include <assert.h>

Include dependency graph for luks2_json_format.c:

Go to the source code of this file.

Data Structures
struct	area

Functions
static size_t	get_area_size (size_t keylength)
static size_t	get_min_offset (struct luks2_hdr *hdr)
static size_t	get_max_offset (struct luks2_hdr *hdr)
int	LUKS2_find_area_max_gap (struct crypt_device *cd, struct luks2_hdr *hdr, uint64_t *area_offset, uint64_t *area_length)
int	LUKS2_find_area_gap (struct crypt_device *cd, struct luks2_hdr *hdr, size_t keylength, uint64_t *area_offset, uint64_t *area_length)
int	LUKS2_check_metadata_area_size (uint64_t metadata_size)
int	LUKS2_check_keyslots_area_size (uint64_t keyslots_size)
int	LUKS2_generate_hdr (struct crypt_device *cd, struct luks2_hdr *hdr, const struct volume_key *vk, const char *cipherName, const char *cipherMode, const char *integrity, const char *uuid, unsigned int sector_size, uint64_t data_offset, uint64_t align_offset, uint64_t required_alignment, uint64_t metadata_size, uint64_t keyslots_size)
int	LUKS2_wipe_header_areas (struct crypt_device *cd, struct luks2_hdr *hdr, bool detached_header)
int	LUKS2_set_keyslots_size (struct crypt_device *cd, struct luks2_hdr *hdr, uint64_t data_offset)

Function Documentation

get_area_size()

static size_t get_area_size ( size_t  keylength )

static

Definition at line 31 of file luks2_json_format.c.

References size_round_up().

Referenced by LUKS2_find_area_gap().

get_max_offset()

static size_t get_max_offset ( struct luks2_hdr *  hdr )

static

Definition at line 42 of file luks2_json_format.c.

References LUKS2_hdr_and_areas_size().

Referenced by LUKS2_find_area_gap(), and LUKS2_find_area_max_gap().

get_min_offset()

static size_t get_min_offset ( struct luks2_hdr *  hdr )

static

Definition at line 37 of file luks2_json_format.c.

References luks2_hdr::hdr_size.

Referenced by LUKS2_find_area_gap(), LUKS2_find_area_max_gap(), LUKS2_generate_hdr(), LUKS2_set_keyslots_size(), and LUKS2_wipe_header_areas().

LUKS2_check_keyslots_area_size()

int LUKS2_check_keyslots_area_size

(

uint64_t

keyslots_size

)

Definition at line 198 of file luks2_json_format.c.

References LUKS2_MAX_KEYSLOTS_SIZE, and MISALIGNED_4K.

Referenced by crypt_set_metadata_size(), and hdr_validate_config().

LUKS2_check_metadata_area_size()

int LUKS2_check_metadata_area_size

(

uint64_t

metadata_size

)

Definition at line 188 of file luks2_json_format.c.

Referenced by crypt_set_metadata_size(), and hdr_validate_config().

LUKS2_find_area_gap()

int LUKS2_find_area_gap	(	struct crypt_device *	cd,
		struct luks2_hdr *	hdr,
		size_t	keylength,
		uint64_t *	area_offset,
		uint64_t *	area_length
	)

Definition at line 121 of file luks2_json_format.c.

References get_area_size(), get_max_offset(), get_min_offset(), area::length, log_dbg, LUKS2_keyslot_area(), LUKS2_KEYSLOTS_MAX, and area::offset.

Referenced by luks2_keyslot_alloc(), LUKS2_keyslot_find_empty(), LUKS2_luks2_to_luks1(), and reenc_keyslot_alloc().

LUKS2_find_area_max_gap()

int LUKS2_find_area_max_gap	(	struct crypt_device *	cd,
		struct luks2_hdr *	hdr,
		uint64_t *	area_offset,
		uint64_t *	area_length
	)

Definition at line 47 of file luks2_json_format.c.

References get_max_offset(), get_min_offset(), area::length, log_dbg, LUKS2_keyslot_area(), LUKS2_KEYSLOTS_MAX, area::offset, and size_round_up().

Referenced by reenc_keyslot_alloc().

LUKS2_generate_hdr()

int LUKS2_generate_hdr	(	struct crypt_device *	cd,
		struct luks2_hdr *	hdr,
		const struct volume_key *	vk,
		const char *	cipherName,
		const char *	cipherMode,
		const char *	integrity,
		const char *	uuid,
		unsigned int	sector_size,
		uint64_t	data_offset,
		uint64_t	align_offset,
		uint64_t	required_alignment,
		uint64_t	metadata_size,
		uint64_t	keyslots_size
	)

Definition at line 204 of file luks2_json_format.c.

References _, luks2_hdr::checksum_alg, crypt_jobj_new_uint64(), crypt_metadata_device(), crypt_random_get(), CRYPT_RND_SALT, device_fallocate(), device_size(), get_min_offset(), luks2_hdr::hdr_size, luks2_hdr::jobj, JSON_DBG(), json_object_object_add_by_uint(), json_segment_create_crypt(), luks2_hdr::label, log_dbg, log_err, log_std, LUKS2_DEFAULT_HDR_SIZE, LUKS2_digest_create(), LUKS2_digest_segment_assign(), LUKS2_HDR_16K_LEN, LUKS2_HDR_BIN_LEN, LUKS2_HDR_OFFSET_MAX, LUKS2_LABEL_L, LUKS2_MAX_KEYSLOTS_SIZE, LUKS2_SALT_L, NULL, luks2_hdr::salt1, luks2_hdr::salt2, sector_size, luks2_hdr::seqid, size_round_up(), luks2_hdr::uuid, and luks2_hdr::version.

Referenced by _crypt_format_luks2().

LUKS2_set_keyslots_size()

int LUKS2_set_keyslots_size	(	struct crypt_device *	cd,
		struct luks2_hdr *	hdr,
		uint64_t	data_offset
	)

Definition at line 386 of file luks2_json_format.c.

References crypt_jobj_new_uint64(), get_min_offset(), luks2_hdr::jobj, and LUKS2_MAX_KEYSLOTS_SIZE.

LUKS2_wipe_header_areas()

int LUKS2_wipe_header_areas	(	struct crypt_device *	cd,
		struct luks2_hdr *	hdr,
		bool	detached_header
	)

Definition at line 345 of file luks2_json_format.c.

References crypt_metadata_device(), crypt_wipe_device(), CRYPT_WIPE_RANDOM, CRYPT_WIPE_ZERO, get_min_offset(), luks2_hdr::hdr_size, luks2_hdr::jobj, log_dbg, LUKS2_get_data_offset(), LUKS2_HDR_BIN_LEN, LUKS2_hdr_validate(), LUKS2_keyslots_size(), NULL, SECTOR_SIZE, and wipe_block().

Referenced by _crypt_format_luks2().