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 _UAPI_LINUX_MSDOS_FS_H 20 #define _UAPI_LINUX_MSDOS_FS_H 21 #include <linux/types.h> 22 #include <linux/magic.h> 23 #include <asm/byteorder.h> 24 #ifndef SECTOR_SIZE 25 #define SECTOR_SIZE 512 26 #endif 27 #define SECTOR_BITS 9 28 #define MSDOS_DPB (MSDOS_DPS) 29 #define MSDOS_DPB_BITS 4 30 #define MSDOS_DPS (SECTOR_SIZE / sizeof(struct msdos_dir_entry)) 31 #define MSDOS_DPS_BITS 4 32 #define MSDOS_LONGNAME 256 33 #define CF_LE_W(v) le16_to_cpu(v) 34 #define CF_LE_L(v) le32_to_cpu(v) 35 #define CT_LE_W(v) cpu_to_le16(v) 36 #define CT_LE_L(v) cpu_to_le32(v) 37 #define MSDOS_ROOT_INO 1 38 #define MSDOS_FSINFO_INO 2 39 #define MSDOS_DIR_BITS 5 40 #define FAT_MAX_DIR_ENTRIES (65536) 41 #define FAT_MAX_DIR_SIZE (FAT_MAX_DIR_ENTRIES << MSDOS_DIR_BITS) 42 #define ATTR_NONE 0 43 #define ATTR_RO 1 44 #define ATTR_HIDDEN 2 45 #define ATTR_SYS 4 46 #define ATTR_VOLUME 8 47 #define ATTR_DIR 16 48 #define ATTR_ARCH 32 49 #define ATTR_UNUSED (ATTR_VOLUME | ATTR_ARCH | ATTR_SYS | ATTR_HIDDEN) 50 #define ATTR_EXT (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME) 51 #define CASE_LOWER_BASE 8 52 #define CASE_LOWER_EXT 16 53 #define DELETED_FLAG 0xe5 54 #define IS_FREE(n) (! * (n) || * (n) == DELETED_FLAG) 55 #define FAT_LFN_LEN 255 56 #define MSDOS_NAME 11 57 #define MSDOS_SLOTS 21 58 #define MSDOS_DOT ". " 59 #define MSDOS_DOTDOT ".. " 60 #define FAT_START_ENT 2 61 #define MAX_FAT12 0xFF4 62 #define MAX_FAT16 0xFFF4 63 #define MAX_FAT32 0x0FFFFFF6 64 #define BAD_FAT12 0xFF7 65 #define BAD_FAT16 0xFFF7 66 #define BAD_FAT32 0x0FFFFFF7 67 #define EOF_FAT12 0xFFF 68 #define EOF_FAT16 0xFFFF 69 #define EOF_FAT32 0x0FFFFFFF 70 #define FAT_ENT_FREE (0) 71 #define FAT_ENT_BAD (BAD_FAT32) 72 #define FAT_ENT_EOF (EOF_FAT32) 73 #define FAT_FSINFO_SIG1 0x41615252 74 #define FAT_FSINFO_SIG2 0x61417272 75 #define IS_FSINFO(x) (le32_to_cpu((x)->signature1) == FAT_FSINFO_SIG1 && le32_to_cpu((x)->signature2) == FAT_FSINFO_SIG2) 76 #define FAT_STATE_DIRTY 0x01 77 struct __fat_dirent { 78 long d_ino; 79 __kernel_off_t d_off; 80 unsigned short d_reclen; 81 char d_name[256]; 82 }; 83 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct __fat_dirent[2]) 84 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct __fat_dirent[2]) 85 #define FAT_IOCTL_GET_ATTRIBUTES _IOR('r', 0x10, __u32) 86 #define FAT_IOCTL_SET_ATTRIBUTES _IOW('r', 0x11, __u32) 87 #define FAT_IOCTL_GET_VOLUME_ID _IOR('r', 0x13, __u32) 88 struct fat_boot_sector { 89 __u8 ignored[3]; 90 __u8 system_id[8]; 91 __u8 sector_size[2]; 92 __u8 sec_per_clus; 93 __le16 reserved; 94 __u8 fats; 95 __u8 dir_entries[2]; 96 __u8 sectors[2]; 97 __u8 media; 98 __le16 fat_length; 99 __le16 secs_track; 100 __le16 heads; 101 __le32 hidden; 102 __le32 total_sect; 103 union { 104 struct { 105 __u8 drive_number; 106 __u8 state; 107 __u8 signature; 108 __u8 vol_id[4]; 109 __u8 vol_label[MSDOS_NAME]; 110 __u8 fs_type[8]; 111 } fat16; 112 struct { 113 __le32 length; 114 __le16 flags; 115 __u8 version[2]; 116 __le32 root_cluster; 117 __le16 info_sector; 118 __le16 backup_boot; 119 __le16 reserved2[6]; 120 __u8 drive_number; 121 __u8 state; 122 __u8 signature; 123 __u8 vol_id[4]; 124 __u8 vol_label[MSDOS_NAME]; 125 __u8 fs_type[8]; 126 } fat32; 127 }; 128 }; 129 struct fat_boot_fsinfo { 130 __le32 signature1; 131 __le32 reserved1[120]; 132 __le32 signature2; 133 __le32 free_clusters; 134 __le32 next_cluster; 135 __le32 reserved2[4]; 136 }; 137 struct msdos_dir_entry { 138 __u8 name[MSDOS_NAME]; 139 __u8 attr; 140 __u8 lcase; 141 __u8 ctime_cs; 142 __le16 ctime; 143 __le16 cdate; 144 __le16 adate; 145 __le16 starthi; 146 __le16 time, date, start; 147 __le32 size; 148 }; 149 struct msdos_dir_slot { 150 __u8 id; 151 __u8 name0_4[10]; 152 __u8 attr; 153 __u8 reserved; 154 __u8 alias_checksum; 155 __u8 name5_10[12]; 156 __le16 start; 157 __u8 name11_12[4]; 158 }; 159 #endif 160