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72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
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* Integrity header defitinion
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*
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* Copyright (C) 2016-2018, Milan Broz
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*
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* This file is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This file 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this file; 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 _CRYPTSETUP_INTEGRITY_H
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#define _CRYPTSETUP_INTEGRITY_H
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#include <stdint.h>
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struct crypt_device;
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struct device;
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struct crypt_params_integrity;
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struct volume_key;
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/* dm-integrity helper */
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#define SB_MAGIC "integrt"
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#define SB_VERSION 1
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struct superblock {
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uint8_t magic[8];
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uint8_t version;
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int8_t log2_interleave_sectors;
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uint16_t integrity_tag_size;
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uint32_t journal_sections;
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uint64_t provided_data_sectors;
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uint32_t flags;
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uint8_t log2_sectors_per_block;
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} __attribute__ ((packed));
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int INTEGRITY_read_sb(struct crypt_device *cd, struct crypt_params_integrity *params);
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int INTEGRITY_dump(struct crypt_device *cd, struct device *device, uint64_t offset);
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int INTEGRITY_data_sectors(struct crypt_device *cd,
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struct device *device, uint64_t offset,
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uint64_t *data_sectors);
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int INTEGRITY_key_size(struct crypt_device *cd);
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int INTEGRITY_tag_size(struct crypt_device *cd,
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const char *integrity,
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const char *cipher,
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const char *cipher_mode);
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int INTEGRITY_format(struct crypt_device *cd,
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const struct crypt_params_integrity *params,
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struct volume_key *journal_crypt_key,
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struct volume_key *journal_mac_key);
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int INTEGRITY_activate(struct crypt_device *cd,
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const char *name,
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const struct crypt_params_integrity *params,
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struct volume_key *vk,
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struct volume_key *journal_crypt_key,
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struct volume_key *journal_mac_key,
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uint32_t flags);
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#endif
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