Start of rewrite

Based on lockpick_rcm 1.9.0

bdk/libs/nx_savedata/hierarchical_integrity_verification_storage.h

@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2019-2020 shchmue
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ISC License
+
+hactool Copyright (c) 2018, SciresM
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#ifndef _HIVFC_H_
+#define _HIVFC_H_
+
+#include "cached_storage.h"
+#include "fs_int64.h"
+#include "integrity_verification_storage.h"
+#include "storage.h"
+
+#include <utils/types.h>
+
+#include <assert.h>
+#include <stdint.h>
+
+#define IVFC_MAX_LEVEL 6
+
+typedef struct {
+    fs_int64_t logical_offset;
+    fs_int64_t hash_data_size;
+    uint32_t block_size;
+    uint8_t reserved[4];
+} ivfc_level_hdr_t;
+
+typedef struct {
+    ivfc_level_hdr_t *hdr;
+    validity_t hash_validity;
+} ivfc_level_save_ctx_t;
+
+typedef struct {
+    uint8_t val[0x20];
+} hash_salt_t;
+
+typedef struct {
+    uint32_t num_levels;
+    ivfc_level_hdr_t level_headers[IVFC_MAX_LEVEL];
+    hash_salt_t seed;
+} ivfc_level_hash_info_t;
+
+typedef struct {
+    uint32_t magic;
+    uint32_t version;
+    uint32_t master_hash_size;
+    ivfc_level_hash_info_t level_hash_info;
+} ivfc_save_hdr_t;
+
+static_assert(sizeof(ivfc_save_hdr_t) == 0xC0, "Ivfc header size invalid!");
+
+typedef struct {
+    int64_t control_size;
+    int64_t master_hash_size;
+    int64_t layered_hash_sizes[IVFC_MAX_LEVEL];
+} ivfc_size_set_t;
+
+typedef struct {
+    uint64_t level_block_size[IVFC_MAX_LEVEL];
+} ivfc_storage_control_input_param_t;
+
+typedef struct {
+    cached_storage_ctx_t levels[IVFC_MAX_LEVEL - 1];
+    cached_storage_ctx_t *data_level;
+    int integrity_check_level;
+    validity_t **level_validities;
+    uint64_t length;
+    integrity_verification_storage_ctx_t integrity_storages[IVFC_MAX_LEVEL - 2];
+    validity_t hash_validity[IVFC_MAX_LEVEL - 2];
+    substorage base_storage;
+} hierarchical_integrity_verification_storage_ctx_t;
+
+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);
+bool save_hierarchical_integrity_verification_storage_control_area_expand(substorage *header_storage, const ivfc_save_hdr_t *header);
+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);
+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);
+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);
+validity_t save_hierarchical_integrity_verification_storage_validate(hierarchical_integrity_verification_storage_ctx_t *ctx);
+void save_hierarchical_integrity_verification_storage_set_level_validities(hierarchical_integrity_verification_storage_ctx_t *ctx);
+
+#endif