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https://gitlab.com/cryptsetup/cryptsetup.git
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82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
// SPDX-License-Identifier: LGPL-2.1-or-later
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/*
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* dm-verity volume handling
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*
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* Copyright (C) 2012-2025 Red Hat, Inc. All rights reserved.
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*/
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#ifndef _VERITY_H
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#define _VERITY_H
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#include <stddef.h>
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#include <stdint.h>
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#include <stdbool.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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struct device;
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struct volume_key;
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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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struct volume_key *root_hash,
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struct volume_key *signature,
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struct device *fec_device,
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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_params(struct crypt_device *cd,
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struct crypt_params_verity *hdr,
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bool signed_root_hash,
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struct device *fec_device,
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struct volume_key *root_hash);
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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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const char *root_hash,
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size_t root_hash_size);
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int VERITY_FEC_process(struct crypt_device *cd,
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struct crypt_params_verity *params,
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struct device *fec_device,
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int check_fec,
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unsigned int *errors);
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uint64_t VERITY_hash_offset_block(struct crypt_params_verity *params);
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uint64_t VERITY_hash_blocks(struct crypt_device *cd, struct crypt_params_verity *params);
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uint64_t VERITY_FEC_blocks(struct crypt_device *cd,
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struct device *fec_device,
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struct crypt_params_verity *params);
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uint64_t VERITY_FEC_RS_blocks(uint64_t blocks, uint32_t roots);
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int VERITY_UUID_generate(char **uuid_string);
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int VERITY_dump(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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unsigned int root_hash_size,
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struct device *fec_device);
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#endif
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