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https://gitlab.com/cryptsetup/cryptsetup.git
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65f975655c
Allocate loop device late (only when real block device needed). Rework underlying device/file access functions. Move all device (and ioctl) access to utils_device.c. Allows using file where appropriate without allocation loop device.
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/*
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* dm-verity volume handling
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*
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* Copyright (C) 2012, Red Hat, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _VERITY_H
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#define _VERITY_H
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#include <unistd.h>
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#include "config.h"
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#define VERITY_MAX_HASH_TYPE 1
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#define VERITY_BLOCK_SIZE_OK(x) ((x) % 512 || (x) < 512 || \
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(x) > (512 * 1024) || (x) & ((x)-1))
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struct crypt_device;
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struct crypt_params_verity;
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int VERITY_read_sb(struct crypt_device *cd,
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uint64_t sb_offset,
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char **uuid,
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struct crypt_params_verity *params);
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int VERITY_write_sb(struct crypt_device *cd,
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uint64_t sb_offset,
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const char *uuid_string,
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struct crypt_params_verity *params);
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int VERITY_activate(struct crypt_device *cd,
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const char *name,
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const char *root_hash,
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size_t root_hash_size,
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struct crypt_params_verity *verity_hdr,
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uint32_t activation_flags);
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int VERITY_verify(struct crypt_device *cd,
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struct crypt_params_verity *verity_hdr,
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const char *root_hash,
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size_t root_hash_size);
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int VERITY_create(struct crypt_device *cd,
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struct crypt_params_verity *verity_hdr,
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char *root_hash,
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size_t root_hash_size);
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uint64_t VERITY_hash_offset_block(struct crypt_params_verity *params);
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int VERITY_UUID_generate(struct crypt_device *cd, char **uuid_string);
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#endif
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