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/*
File: bfs.h
Copyright (C) 1998-2004 Christophe GRENIER <grenier@cgsecurity.org>
This software is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
typedef struct block_run
{
int32_t allocation_group;
uint16_t start;
uint16_t len; /* in blocks */
} block_run;
typedef block_run inode_addr;
#define B_OS_NAME_LENGTH 32
typedef struct disk_super_block /* super block as it is on disk */
{
char name[B_OS_NAME_LENGTH];
int32_t magic1; /* 0x20 */
int32_t fs_byte_order; /* 0x24 */
uint32_t block_size; /* 0x28 in bytes */
uint32_t block_shift; /* 0x2C block_size == (1 << block_shift) */
int64_t num_blocks; /* 0x30 */
int64_t used_blocks; /* 0x38 */
int32_t inode_size; /* 0x40 # of bytes per inode */
int32_t magic2; /* 0x44 */
int32_t blocks_per_ag; /* 0x48 in blocks */
int32_t ag_shift; /* 0x4C # of bits to shift to get ag num */
int32_t num_ags; /* 0x50 # of allocation groups */
int32_t flags; /* 0x54 if it's clean, etc */
block_run log_blocks; /* 0x58 a block_run of the log blocks */
int64_t log_start; /* 0x60 block # of the beginning */
int64_t log_end; /* 0x68 block # of the end of the log */
int32_t magic3; /* 0x70 */
inode_addr root_dir; /* 0x74 */
inode_addr indices; /* 0x7C */
int32_t pad[8]; /* 0x84 extra stuff for the future */
/* 0xA4-0xFF */
} disk_super_block;
/*the flags field can have these values */
#define BFS_CLEAN 0x434c454e /* 'CLEN', for flags field */
#define BFS_DIRTY 0x44495254 /* 'DIRT', for flags field */
/* these are the magic numbers for the 3 magic fields */
#define SUPER_BLOCK_MAGIC1 0x42465331 /* BFS1 */
#define SUPER_BLOCK_MAGIC2 0xdd121031
#define SUPER_BLOCK_MAGIC3 0x15b6830e
/* this is stored in the fs_byte_order field... it's kind of dumb */
#define BFS_BIG_ENDIAN 0x42494745 /* BIGE */
/* int test_beos(struct disk_super_block *,t_partition); */
int check_BeFS(t_param_disk *disk_car,t_partition *partition,const int debug);
int recover_BeFS(t_param_disk *disk_car, const struct disk_super_block *beos_block,t_partition *partition,const int debug, const int dump_ind);
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