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Diffstat (limited to '')
| -rw-r--r-- | lib/integrity/integrity.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/lib/integrity/integrity.h b/lib/integrity/integrity.h new file mode 100644 index 0000000..7a4b4c2 --- /dev/null +++ b/lib/integrity/integrity.h @@ -0,0 +1,91 @@ +/* + * Integrity header defitinion + * + * Copyright (C) 2016-2019 Milan Broz + * + * This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this file; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef _CRYPTSETUP_INTEGRITY_H +#define _CRYPTSETUP_INTEGRITY_H + +#include <stdint.h> + +struct crypt_device; +struct device; +struct crypt_params_integrity; +struct volume_key; +struct crypt_dm_active_device; + +/* dm-integrity helper */ +#define SB_MAGIC "integrt" +#define SB_VERSION_1 1 +#define SB_VERSION_2 2 + +#define SB_FLAG_HAVE_JOURNAL_MAC (1 << 0) +#define SB_FLAG_RECALCULATING (1 << 1) /* V2 only */ + +struct superblock { + uint8_t magic[8]; + uint8_t version; + int8_t log2_interleave_sectors; + uint16_t integrity_tag_size; + uint32_t journal_sections; + uint64_t provided_data_sectors; + uint32_t flags; + uint8_t log2_sectors_per_block; + uint8_t pad[3]; + uint64_t recalc_sector; /* V2 only */ +} __attribute__ ((packed)); + +int INTEGRITY_read_sb(struct crypt_device *cd, struct crypt_params_integrity *params); + +int INTEGRITY_dump(struct crypt_device *cd, struct device *device, uint64_t offset); + +int INTEGRITY_data_sectors(struct crypt_device *cd, + struct device *device, uint64_t offset, + uint64_t *data_sectors); +int INTEGRITY_key_size(struct crypt_device *cd, + const char *integrity); +int INTEGRITY_tag_size(struct crypt_device *cd, + const char *integrity, + const char *cipher, + const char *cipher_mode); + +int INTEGRITY_format(struct crypt_device *cd, + const struct crypt_params_integrity *params, + struct volume_key *journal_crypt_key, + struct volume_key *journal_mac_key); + +int INTEGRITY_activate(struct crypt_device *cd, + const char *name, + const struct crypt_params_integrity *params, + struct volume_key *vk, + struct volume_key *journal_crypt_key, + struct volume_key *journal_mac_key, + uint32_t flags); + +int INTEGRITY_create_dmd_device(struct crypt_device *cd, + const struct crypt_params_integrity *params, + struct volume_key *vk, + struct volume_key *journal_crypt_key, + struct volume_key *journal_mac_key, + struct crypt_dm_active_device *dmd, + uint32_t flags); + +int INTEGRITY_activate_dmd_device(struct crypt_device *cd, + const char *name, + struct crypt_dm_active_device *dmd); +#endif |