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 29 struct 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 48 struct bfs_dirent { 49 __le16 ino; 50 char name[BFS_NAMELEN]; 51 }; 52 struct 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
