keii.dev
1/*
2 * Copyright (C) 2020-2022 The opuntiaOS Project Authors.
3 * + Contributed by Nikita Melekhin <nimelehin@gmail.com>
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9#ifndef _KERNEL_FS_DEVFS_DEVFS_H
10#define _KERNEL_FS_DEVFS_DEVFS_H
11
12#include <fs/vfs.h>
13#include <libkern/c_attrs.h>
14#include <libkern/types.h>
15
16#define DEVFS_INODE_LEN (sizeof(struct devfs_inode))
17struct PACKED devfs_inode {
18 mode_t mode;
19 uint16_t uid;
20 uint32_t size;
21 uint32_t atime;
22 uint32_t ctime;
23 uint32_t mtime;
24 uint32_t dtime;
25 uint16_t gid;
26 uint16_t links_count;
27 uint32_t blocks;
28 uint32_t flags;
29 uint32_t osd1;
30
31 /* NOTE: Instead of blocks here, we store devfs required things */
32 uint32_t index;
33 uint32_t dev_id;
34 char* name;
35 struct file_ops* handlers;
36 struct devfs_inode* parent;
37 struct devfs_inode* prev;
38 struct devfs_inode* next;
39 struct devfs_inode* first;
40 struct devfs_inode* last;
41 uint8_t padding[24];
42 /* Block hack ends here */
43
44 uint32_t generation;
45 uint32_t file_acl;
46 uint32_t dir_acl;
47 uint32_t faddr;
48 uint32_t osd2[3];
49};
50typedef struct devfs_inode devfs_inode_t;
51
52void devfs_install();
53int devfs_mount();
54
55devfs_inode_t* devfs_mkdir(dentry_t* dir, const char* name, uint32_t len);
56devfs_inode_t* devfs_register(dentry_t* dir, uint32_t devid, const char* name, uint32_t len, mode_t mode, const file_ops_t* handlers);
57
58#endif /* _KERNEL_FS_DEVFS_DEVFS_H */