kernel/include/vfs.h

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2007  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   4  *  Copyright (C) 2008  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   5  *
   6  *  This program is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20
  21 #ifndef _VFS_H
  22 #define _VFS_H
  23
  24 #define VFS_FILEATTR_FILE       0x1
  25 #define VFS_FILEATTR_DIR        0x2
  26 #define VFS_FILEATTR_HIDDEN     0x4
  27 #define VFS_FILEATTR_SYSTEM     0x8
  28 #define VFS_FILEATTR_BIN        0x10
  29 #define VFS_FILEATTR_READ       0x20
  30 #define VFS_FILEATTR_WRITE      0x40
  31 #define VFS_FILEATTR_MOUNTED    0x80
  32
  33 #define VFS_FILENAME_LEN        10
  34 #define VFS_MOUNTPOINT_LEN      32
  35
  36 typedef struct {
  37         char *ptr;
  38         unsigned long len;
  39 } vfs_content_t;
  40
  41 /* Virtual filesystem structure */
  42 typedef struct vfs_context {
  43         struct vfs_context *next, *prev;
  44
  45         char *name;
  46         char mountpoint[VFS_MOUNTPOINT_LEN];
  47         unsigned attrib;
  48         vfs_content_t *content;
  49 } vfs_t;
  50
  51 typedef struct {
  52         char *name;
  53         unsigned attrib;
  54         unsigned char next;
  55         unsigned char unused;
  56 } __attribute__ ((__packed__)) vfs_dirent_t;
  57
  58 /* externs */
  59 extern vfs_t *vfs_list_find (char *name, char *mountpoint);
  60 extern vfs_t *vfs_list_findbymp (char *mountpoint);
  61 extern vfs_t *vfs_list_add (char *name, unsigned attrib, char *mountpoint);
  62 extern bool vfs_list_del (vfs_t *vfs);
  63 extern bool vfs_list_delbymp (char *mountpoint);
  64 extern bool vfs_mmap (char *file, unsigned file_len, char *data, unsigned long len);
  65 extern int vfs_read (char *file, unsigned file_len);
  66 extern bool vfs_cat (char *file, unsigned file_len);
  67 extern bool vfs_ls (char *file, unsigned file_len);
  68 extern bool vfs_cd (char *file, unsigned file_len);
  69 extern bool vfs_mkdir (char *file, unsigned file_len);
  70 extern bool vfs_touch (char *file, unsigned file_len);
  71 extern int vfs_rm (char *file, unsigned file_len);
  72 extern vfs_dirent_t *vfs_dirent ();
  73 extern unsigned int init_vfs ();
  74
  75 #endif