1 /****************************************************************************
2  ****************************************************************************
3  ***
4  ***   This header was automatically generated from a Linux kernel header
5  ***   of the same name, to make information necessary for userspace to
6  ***   call into the kernel available to libc.  It contains only constants,
7  ***   structures, and macros generated from the original header, and thus,
8  ***   contains no copyrightable information.
9  ***
10  ****************************************************************************
11  ****************************************************************************/
12 #ifndef __EFS_DIR_H__
13 #define __EFS_DIR_H__
14 
15 #define EFS_DIRBSIZE_BITS EFS_BLOCKSIZE_BITS
16 #define EFS_DIRBSIZE (1 << EFS_DIRBSIZE_BITS)
17 
18 struct efs_dentry {
19  __be32 inode;
20  unsigned char namelen;
21  char name[3];
22 };
23 
24 #define EFS_DENTSIZE (sizeof(struct efs_dentry) - 3 + 1)
25 #define EFS_MAXNAMELEN ((1 << (sizeof(char) * 8)) - 1)
26 
27 #define EFS_DIRBLK_HEADERSIZE 4
28 #define EFS_DIRBLK_MAGIC 0xbeef
29 
30 struct efs_dir {
31  __be16 magic;
32  unsigned char firstused;
33  unsigned char slots;
34 
35  unsigned char space[EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE];
36 };
37 
38 #define EFS_MAXENTS   ((EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE) /   (EFS_DENTSIZE + sizeof(char)))
39 
40 #define EFS_SLOTAT(dir, slot) EFS_REALOFF((dir)->space[slot])
41 
42 #define EFS_REALOFF(offset) ((offset << 1))
43 
44 #endif
45 
46