111 lines
4.1 KiB
C
111 lines
4.1 KiB
C
/*
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* Copyright (c) 2019-2020 shchmue
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions 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 it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* 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, see <http://www.gnu.org/licenses/>.
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*/
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/*
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ISC License
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hactool Copyright (c) 2018, SciresM
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _HIVFC_H_
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#define _HIVFC_H_
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#include "cached_storage.h"
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#include "fs_int64.h"
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#include "integrity_verification_storage.h"
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#include "storage.h"
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#include <utils/types.h>
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#include <assert.h>
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#include <stdint.h>
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#define IVFC_MAX_LEVEL 6
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typedef struct {
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fs_int64_t logical_offset;
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fs_int64_t hash_data_size;
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uint32_t block_size;
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uint8_t reserved[4];
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} ivfc_level_hdr_t;
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typedef struct {
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ivfc_level_hdr_t *hdr;
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validity_t hash_validity;
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} ivfc_level_save_ctx_t;
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typedef struct {
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uint8_t val[0x20];
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} hash_salt_t;
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typedef struct {
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uint32_t num_levels;
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ivfc_level_hdr_t level_headers[IVFC_MAX_LEVEL];
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hash_salt_t seed;
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} ivfc_level_hash_info_t;
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typedef struct {
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uint32_t magic;
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uint32_t version;
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uint32_t master_hash_size;
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ivfc_level_hash_info_t level_hash_info;
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} ivfc_save_hdr_t;
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static_assert(sizeof(ivfc_save_hdr_t) == 0xC0, "Ivfc header size invalid!");
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typedef struct {
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int64_t control_size;
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int64_t master_hash_size;
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int64_t layered_hash_sizes[IVFC_MAX_LEVEL];
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} ivfc_size_set_t;
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typedef struct {
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uint64_t level_block_size[IVFC_MAX_LEVEL];
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} ivfc_storage_control_input_param_t;
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typedef struct {
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cached_storage_ctx_t levels[IVFC_MAX_LEVEL - 1];
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cached_storage_ctx_t *data_level;
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int integrity_check_level;
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validity_t **level_validities;
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uint64_t length;
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integrity_verification_storage_ctx_t integrity_storages[IVFC_MAX_LEVEL - 2];
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validity_t hash_validity[IVFC_MAX_LEVEL - 2];
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substorage base_storage;
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} hierarchical_integrity_verification_storage_ctx_t;
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void save_hierarchical_integrity_verification_storage_control_area_query_size(ivfc_size_set_t *out, const ivfc_storage_control_input_param_t *input_param, int32_t layer_count, uint64_t data_size);
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bool save_hierarchical_integrity_verification_storage_control_area_expand(substorage *header_storage, const ivfc_save_hdr_t *header);
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void save_hierarchical_integrity_verification_storage_init(hierarchical_integrity_verification_storage_ctx_t *ctx, integrity_verification_info_ctx_t *level_info, uint64_t num_levels, int integrity_check_level);
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void save_hierarchical_integrity_verification_storage_init_with_levels(hierarchical_integrity_verification_storage_ctx_t *ctx, ivfc_save_hdr_t *header, uint64_t num_levels, substorage *levels, int integrity_check_level);
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void save_hierarchical_integrity_verification_storage_init_for_fat(hierarchical_integrity_verification_storage_ctx_t *ctx, ivfc_save_hdr_t *header, substorage *master_hash, substorage *data, int integrity_check_level);
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validity_t save_hierarchical_integrity_verification_storage_validate(hierarchical_integrity_verification_storage_ctx_t *ctx);
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void save_hierarchical_integrity_verification_storage_set_level_validities(hierarchical_integrity_verification_storage_ctx_t *ctx);
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#endif
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