85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
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/*
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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 _JOURNAL_MAP_H_
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#define _JOURNAL_MAP_H_
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#include "storage.h"
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#include <utils/types.h>
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#include <stdint.h>
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#define JOURNAL_MAP_ENTRY_SIZE 8
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typedef struct {
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uint32_t version;
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uint32_t main_data_block_count;
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uint32_t journal_block_count;
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uint32_t _0x0C;
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} journal_map_header_t;
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typedef struct {
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uint8_t *map_storage;
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uint8_t *physical_block_bitmap;
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uint8_t *virtual_block_bitmap;
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uint8_t *free_block_bitmap;
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} journal_map_params_t;
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typedef struct {
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uint32_t physical_index;
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uint32_t virtual_index;
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} journal_map_entry_t;
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typedef struct {
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journal_map_header_t *header;
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journal_map_entry_t *entries;
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uint8_t *map_storage;
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uint8_t *modified_physical_blocks;
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uint8_t *modified_virtual_blocks;
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uint8_t *free_blocks;
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} journal_map_ctx_t;
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static ALWAYS_INLINE uint32_t save_journal_map_entry_make_physical_index(uint32_t index) {
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return index | 0x80000000;
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}
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static ALWAYS_INLINE uint32_t save_journal_map_entry_get_physical_index(uint32_t index) {
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return index & 0x7FFFFFFF;
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}
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void save_journal_map_init(journal_map_ctx_t *ctx, journal_map_header_t *header, journal_map_params_t *map_info);
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#endif
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