Rick Rongen
03f0ec6f88
Added VFS and Ext2 support. Optimized attributes of methods to improve code highlighting. Printf attribute, malloc attribute, etc.
71 lines
1.6 KiB
C
71 lines
1.6 KiB
C
//
|
|
// Created by rick on 19-09-21.
|
|
//
|
|
|
|
#ifndef NEW_KERNEL_VFS_H
|
|
#define NEW_KERNEL_VFS_H
|
|
|
|
#include <stdbool.h>
|
|
#include <sys/stat.h>
|
|
|
|
#define VFS_MOUNT_OK 0
|
|
#define VFS_MOUNT_ERROR 1
|
|
|
|
#define VFS_OPEN_ERROR 1
|
|
#define VFS_OPEN_OK 0
|
|
|
|
#define VFS_CLOSE_OK 1
|
|
|
|
#define VFS_READ_ERROR (-1)
|
|
|
|
#define VFS_DGETENTS_ERR 1
|
|
|
|
struct vfs_mount;
|
|
|
|
typedef struct vfs_mount {
|
|
struct {
|
|
} flags;
|
|
const char *prefix;
|
|
const char *device;
|
|
void *driver; // vfs_mount_driver_t
|
|
void *global_driver_data;
|
|
struct vfs_mount *next;
|
|
} vfs_mount_t;
|
|
|
|
typedef struct vfs_fd {
|
|
struct {
|
|
} flags;
|
|
vfs_mount_t *mount;
|
|
void *driver_data;
|
|
} vfs_fd_t;
|
|
|
|
#define VFS_DIRENT_BASE_SIZE (4 + 4 + 2 + 1)
|
|
#define VFS_DIRENT_SIZE(name_length) ((VFS_DIRENT_BASE_SIZE + (name_length) + 1 + 15) & (~0xF))
|
|
#define VFS_DIRENT_MAX_SIZE (VFS_DIRENT_BASE_SIZE + 256 + 1)
|
|
|
|
typedef struct vfs_dirent {
|
|
uint32_t inode;
|
|
uint32_t offset_next;
|
|
uint16_t reclen;
|
|
uint8_t type;
|
|
char name[];
|
|
} vfs_dirent_t;
|
|
|
|
int vfs_mount(const char *path, const char *device, const char *driver);
|
|
|
|
// https://man7.org/linux/man-pages/man2/open.2.html
|
|
vfs_fd_t *vfs_open(const char *path, int flags, int mode);
|
|
|
|
void vfs_close(vfs_fd_t *fd);
|
|
|
|
// https://man7.org/linux/man-pages/man2/stat.2.html
|
|
int vfs_fstat(vfs_fd_t *fd, stat_t *target, int flags);
|
|
|
|
// https://man7.org/linux/man-pages/man2/read.2.html
|
|
int vfs_read(vfs_fd_t *fd, void *target, size_t size);
|
|
|
|
// inspiration https://man7.org/linux/man-pages/man2/getdents.2.html
|
|
int vfs_getdents(vfs_fd_t *fd, void *target, int count);
|
|
|
|
#endif //NEW_KERNEL_VFS_H
|