93 lines
3.1 KiB
C
93 lines
3.1 KiB
C
/*
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File: bfs.c
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Copyright (C) 1998-2007 Christophe GRENIER <grenier@cgsecurity.org>
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This software is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write the Free Software Foundation, Inc., 51
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Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#include "types.h"
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#include "common.h"
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#include "bfs.h"
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#include "fnctdsk.h"
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#include "log.h"
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static int set_BeFS_info(const struct disk_super_block *beos_block, partition_t *partition);
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static int test_BeFS(disk_t *disk_car, const struct disk_super_block*beos_block,partition_t *partition, const int dump_ind);
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int check_BeFS(disk_t *disk_car,partition_t *partition)
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{
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unsigned char *buffer;
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buffer=(unsigned char*)MALLOC(BFS_SUPERBLOCK_SIZE);
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if(disk_car->pread(disk_car, buffer, BFS_SUPERBLOCK_SIZE, partition->part_offset + 0x200) != BFS_SUPERBLOCK_SIZE)
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{
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free(buffer);
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return 1;
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}
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if(test_BeFS(disk_car,(struct disk_super_block*)buffer,partition,0)!=0)
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{
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free(buffer);
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return 1;
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}
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set_BeFS_info((struct disk_super_block*)buffer, partition);
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free(buffer);
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return 0;
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}
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int recover_BeFS(disk_t *disk_car, const struct disk_super_block *beos_block, partition_t *partition, const int dump_ind)
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{
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if(test_BeFS(disk_car,beos_block,partition,dump_ind)!=0)
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return 1;
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set_BeFS_info(beos_block, partition);
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partition->part_size=le64(beos_block->num_blocks) << le32(beos_block->block_shift);
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partition->part_type_i386=(unsigned char)P_BEOS;
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return 0;
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}
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static int test_BeFS(disk_t *disk_car, const struct disk_super_block*beos_block,partition_t *partition, const int dump_ind)
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{
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if(beos_block->magic1==le32(SUPER_BLOCK_MAGIC1) &&
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beos_block->magic2==le32(SUPER_BLOCK_MAGIC2) &&
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beos_block->magic3==le32(SUPER_BLOCK_MAGIC3))
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{
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partition->upart_type=UP_BEOS;
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if(dump_ind!=0)
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{
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log_info("\nBeFS magic value at %u/%u/%u\n", offset2cylinder(disk_car,partition->part_offset),offset2head(disk_car,partition->part_offset),offset2sector(disk_car,partition->part_offset));
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dump_log(beos_block,DEFAULT_SECTOR_SIZE);
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}
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return 0;
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}
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return 1;
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}
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static int set_BeFS_info(const struct disk_super_block *beos_block, partition_t *partition)
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{
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partition->blocksize= 1 << le32(beos_block->block_shift);
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partition->info[0]='\0';
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snprintf(partition->info, sizeof(partition->info), "BeFS blocksize=%u", partition->blocksize);
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set_part_name(partition,beos_block->name,B_OS_NAME_LENGTH);
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return 0;
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}
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