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 ***   To edit the content of this header, modify the corresponding
11 ***   source file (e.g. under external/kernel-headers/original/) then
12 ***   run bionic/libc/kernel/tools/update_all.py
13 ***
14 ***   Any manual change here will be lost the next time this script will
15 ***   be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19#ifndef _LINUX_BFS_FS_H
20#define _LINUX_BFS_FS_H
21#include <linux/types.h>
22#define BFS_BSIZE_BITS 9
23#define BFS_BSIZE (1 << BFS_BSIZE_BITS)
24#define BFS_MAGIC 0x1BADFACE
25#define BFS_ROOT_INO 2
26#define BFS_INODES_PER_BLOCK 8
27#define BFS_VDIR 2L
28#define BFS_VREG 1L
29struct bfs_inode {
30  __le16 i_ino;
31  __u16 i_unused;
32  __le32 i_sblock;
33  __le32 i_eblock;
34  __le32 i_eoffset;
35  __le32 i_vtype;
36  __le32 i_mode;
37  __le32 i_uid;
38  __le32 i_gid;
39  __le32 i_nlink;
40  __le32 i_atime;
41  __le32 i_mtime;
42  __le32 i_ctime;
43  __u32 i_padding[4];
44};
45#define BFS_NAMELEN 14
46#define BFS_DIRENT_SIZE 16
47#define BFS_DIRS_PER_BLOCK 32
48struct bfs_dirent {
49  __le16 ino;
50  char name[BFS_NAMELEN];
51};
52struct bfs_super_block {
53  __le32 s_magic;
54  __le32 s_start;
55  __le32 s_end;
56  __le32 s_from;
57  __le32 s_to;
58  __s32 s_bfrom;
59  __s32 s_bto;
60  char s_fsname[6];
61  char s_volume[6];
62  __u32 s_padding[118];
63};
64#define BFS_OFF2INO(offset) ((((offset) - BFS_BSIZE) / sizeof(struct bfs_inode)) + BFS_ROOT_INO)
65#define BFS_INO2OFF(ino) ((__u32) (((ino) - BFS_ROOT_INO) * sizeof(struct bfs_inode)) + BFS_BSIZE)
66#define BFS_NZFILESIZE(ip) ((le32_to_cpu((ip)->i_eoffset) + 1) - le32_to_cpu((ip)->i_sblock) * BFS_BSIZE)
67#define BFS_FILESIZE(ip) ((ip)->i_sblock == 0 ? 0 : BFS_NZFILESIZE(ip))
68#define BFS_FILEBLOCKS(ip) ((ip)->i_sblock == 0 ? 0 : (le32_to_cpu((ip)->i_eblock) + 1) - le32_to_cpu((ip)->i_sblock))
69#define BFS_UNCLEAN(bfs_sb,sb) ((le32_to_cpu(bfs_sb->s_from) != - 1) && (le32_to_cpu(bfs_sb->s_to) != - 1) && ! (sb->s_flags & SB_RDONLY))
70#endif
71