vfs.h

Go to the documentation of this file.

 
#pragma once
 
#include "fs/vfs_types.h"
#include "mem/slab.h"
 
#define MAX_OPEN_FD 16
 
extern kmem_cache_t *vfs_file_cache;
 
struct task_struct;
 
void vfs_init(void);
 
int vfs_register_filesystem(file_system_type *fs);
 
int vfs_unregister_filesystem(file_system_type *fs);
 
int vfs_register_superblock(const char *name, const char *path, file_system_type *type, vfs_file_t *root);
 
int vfs_unregister_superblock(super_block_t *sb);
 
super_block_t *vfs_get_superblock(const char *absolute_path);
 
vfs_file_t *vfs_open_abspath(const char *absolute_path, int flags, mode_t mode);
 
vfs_file_t *vfs_open(const char *path, int flags, mode_t mode);
 
int vfs_close(vfs_file_t *file);
 
ssize_t vfs_read(vfs_file_t *file, void *buf, size_t offset, size_t nbytes);
 
ssize_t vfs_write(vfs_file_t *file, const void *buf, size_t offset, size_t nbytes);
 
off_t vfs_lseek(vfs_file_t *file, off_t offset, int whence);
 
ssize_t vfs_getdents(vfs_file_t *file, dirent_t *dirp, off_t off, size_t count);
 
int vfs_ioctl(vfs_file_t *file, int request, void *data);
 
int vfs_unlink(const char *path);
 
int vfs_mkdir(const char *path, mode_t mode);
 
int vfs_rmdir(const char *path);
 
vfs_file_t *vfs_creat(const char *path, mode_t mode);
 
ssize_t vfs_readlink(const char *path, char *buffer, size_t bufsize);
 
int vfs_symlink(const char *linkname, const char *path);
 
int vfs_stat(const char *path, stat_t *buf);
 
int vfs_fstat(vfs_file_t *file, stat_t *buf);
 
int vfs_mount(const char *type, const char *path, const char *args);
 
void vfs_lock(vfs_file_t *file);
 
int vfs_extend_task_fd_list(struct task_struct *task);
 
int vfs_init_task(struct task_struct *task);
 
int vfs_dup_task(struct task_struct *new_task, struct task_struct *old_task);
 
int vfs_destroy_task(struct task_struct *task);
 
int get_unused_fd(void);
 
int sys_dup(int fd);
 
int vfs_valid_open_permissions(int flags, mode_t mask, uid_t uid, gid_t gid);
 
int vfs_valid_exec_permission(struct task_struct *task, vfs_file_t *file);