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#ifndef __FILESYSTEM_H__
#define __FILESYSTEM_H__
#include "types.h"
#define FS_OFFSET 0x1000
#define FS_BLOCK_SIZE 512
#define FS_BLOCKS_N 12
/* #define FS_IBLOCKS_N 1 */
#define INODE_TYPE_FILE 0
#define INODE_TYPE_DIR 1
#define INODE_TYPE_LINK 2
typedef struct time_s
{
uint16_t time;
uint16_t date;
} time_t;
/* on-disk structures */
struct fs_superblock
{
uint8_t magic;
uint16_t blk_size; /* default is 512 bytes */
uint16_t imap_size; /* size of the inode bitmap in blocks */
uint16_t dmap_size; /* size of the data blocks map in blocks */
};
struct fs_blk
{
uint size;
};
typedef struct fs_inode
{
uint i_used :1; // inode is free
uint i_mode :3; // inode mode (rwx)
uint8_t i_uid; // user (owner) id
uint16_t i_number; // identifier
uint16_t i_blocks; // number of blocks
struct fs_blk i_block[FS_BLOCKS_N]; // direct blocks
/* struct fs_blk i_iblock[FS_IBLOCKS_N]; // indirect blocks */
inode_t *parent;
} inode_t;
/* inode table structures */
struct fs_inode_entry
{
uint16_t i_number;
uint8_t str_len;
char name[24];
};
/* filesystem struct for the operating system */
struct filesystem
{
size_t size;
size_t fsize;
inode_t *mntpt;
};
void fs_parse_superblock(struct filesystem *fs);
void fs_write_imap();
void fs_write_dmap();
/* void fs_ */
#endif // __FILESYSTEM_H__
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