86 lines
2.0 KiB
C
86 lines
2.0 KiB
C
#ifndef __FS_VFS__
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#define __FS_VFS__
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#include <types.h>
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#include <generic.h>
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#define VFS_FILENAME_MAX_LENGTH 128
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#define FS_FILE 0x01
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#define FS_DIRECTORY 0x02
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#define FS_CHARDEVICE 0x03
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#define FS_BLOCKDEVICE 0x04
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#define FS_PIPE 0x05
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#define FS_SYMLINK 0x06
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#define FS_MOUNTPOINT 0x08
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struct fs_node;
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typedef u32int (*read_type_t)(struct fs_node *,
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u32int,
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u32int,
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u8int *);
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typedef u32int (*write_type_t)(struct fs_node *,
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u32int,
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u32int,
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u8int *);
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typedef void (*open_type_t)(struct fs_node *);
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typedef void (*close_type_t)(struct fs_node *);
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typedef struct dirent *(*readdir_type_t)(struct fs_node *,
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u32int);
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typedef struct fs_node *(*finddir_type_t)(struct fs_node *,
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char *name);
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typedef struct fs_node {
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char name[VFS_FILENAME_MAX_LENGTH];
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u32int mask; // permission mask
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u32int uid;
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u32int gid;
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u32int flags;
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u32int inode;
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u32int length;
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u32int impl; // impl defined number
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read_type_t read;
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write_type_t write;
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open_type_t open;
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close_type_t close;
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readdir_type_t readdir;
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finddir_type_t finddir;
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struct fs_node *ptr; // used by mountpoints and symlinks
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} fs_node_t;
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typedef struct dirent {
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char name[VFS_FILENAME_MAX_LENGTH];
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u32int ino;
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} dirent_t;
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u32int read_fs(fs_node_t *node,
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u32int offset,
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u32int size,
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u8int *buffer);
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u32int write_fs(fs_node_t *node,
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u32int offset,
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u32int size,
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u8int *buffer);
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void open_fs(fs_node_t *node,
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u8int read,
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u8int write);
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void close_fs(fs_node_t *node);
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struct dirent *readdir_fs(fs_node_t *node,
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u32int index);
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fs_node_t *finddir_fs(fs_node_t *node,
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char *name);
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#endif
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