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// SPDX-License-Identifier: LGPL-2.1-or-later
/*
* FVAULT2 (FileVault2-compatible) volume handling
*
* Copyright (C) 2021-2022 Pavel Tobias
*/
#ifndef _CRYPTSETUP_FVAULT2_H
#define _CRYPTSETUP_FVAULT2_H
#include <stddef.h>
#include <stdint.h>
#define FVAULT2_WRAPPED_KEY_SIZE 24
#define FVAULT2_PBKDF2_SALT_SIZE 16
#define FVAULT2_UUID_LEN 37
struct crypt_device;
struct volume_key;
struct fvault2_params {
const char *cipher;
const char *cipher_mode;
uint16_t key_size;
uint32_t pbkdf2_iters;
char pbkdf2_salt[FVAULT2_PBKDF2_SALT_SIZE];
char wrapped_kek[FVAULT2_WRAPPED_KEY_SIZE];
char wrapped_vk[FVAULT2_WRAPPED_KEY_SIZE];
char family_uuid[FVAULT2_UUID_LEN];
char ph_vol_uuid[FVAULT2_UUID_LEN];
uint64_t log_vol_off;
uint64_t log_vol_size;
};
int FVAULT2_read_metadata(
struct crypt_device *cd,
struct fvault2_params *params);
int FVAULT2_get_volume_key(
struct crypt_device *cd,
const char *passphrase,
size_t passphrase_len,
const struct fvault2_params *params,
struct volume_key **r_vol_key);
int FVAULT2_dump(
struct crypt_device *cd,
struct device *device,
const struct fvault2_params *params);
int FVAULT2_activate_by_volume_key(
struct crypt_device *cd,
const char *name,
struct volume_key *vk,
const struct fvault2_params *params,
uint32_t flags);
size_t FVAULT2_volume_key_size(void);
#endif
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