^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) 2012-2013 Samsung Electronics Co., Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #ifndef _EXFAT_RAW_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #define _EXFAT_RAW_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define BOOT_SIGNATURE 0xAA55
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define EXBOOT_SIGNATURE 0xAA550000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define STR_EXFAT "EXFAT " /* size should be 8 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define EXFAT_MAX_FILE_LEN 255
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define VOLUME_DIRTY 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define MEDIA_FAILURE 0x0004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define EXFAT_EOF_CLUSTER 0xFFFFFFFFu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define EXFAT_BAD_CLUSTER 0xFFFFFFF7u
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define EXFAT_FREE_CLUSTER 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) /* Cluster 0, 1 are reserved, the first cluster is 2 in the cluster heap. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define EXFAT_RESERVED_CLUSTERS 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define EXFAT_FIRST_CLUSTER 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define EXFAT_DATA_CLUSTER_COUNT(sbi) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) ((sbi)->num_clusters - EXFAT_RESERVED_CLUSTERS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) /* AllocationPossible and NoFatChain field in GeneralSecondaryFlags Field */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define ALLOC_FAT_CHAIN 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define ALLOC_NO_FAT_CHAIN 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define DENTRY_SIZE 32 /* directory entry size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define DENTRY_SIZE_BITS 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) /* exFAT allows 8388608(256MB) directory entries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define MAX_EXFAT_DENTRIES 8388608
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /* dentry types */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define EXFAT_UNUSED 0x00 /* end of directory */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define EXFAT_DELETE (~0x80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define IS_EXFAT_DELETED(x) ((x) < 0x80) /* deleted file (0x01~0x7F) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define EXFAT_INVAL 0x80 /* invalid value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define EXFAT_BITMAP 0x81 /* allocation bitmap */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define EXFAT_UPCASE 0x82 /* upcase table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define EXFAT_VOLUME 0x83 /* volume label */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define EXFAT_FILE 0x85 /* file or dir */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define EXFAT_GUID 0xA0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define EXFAT_PADDING 0xA1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define EXFAT_ACLTAB 0xA2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define EXFAT_STREAM 0xC0 /* stream entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define EXFAT_NAME 0xC1 /* file name entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define EXFAT_ACL 0xC2 /* stream entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define IS_EXFAT_CRITICAL_PRI(x) (x < 0xA0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define IS_EXFAT_BENIGN_PRI(x) (x < 0xC0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define IS_EXFAT_CRITICAL_SEC(x) (x < 0xE0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) /* checksum types */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define CS_DIR_ENTRY 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define CS_BOOT_SECTOR 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define CS_DEFAULT 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) /* file attributes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #define ATTR_READONLY 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define ATTR_HIDDEN 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define ATTR_SYSTEM 0x0004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #define ATTR_VOLUME 0x0008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #define ATTR_SUBDIR 0x0010
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #define ATTR_ARCHIVE 0x0020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #define ATTR_RWMASK (ATTR_HIDDEN | ATTR_SYSTEM | ATTR_VOLUME | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) ATTR_SUBDIR | ATTR_ARCHIVE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #define BOOTSEC_JUMP_BOOT_LEN 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #define BOOTSEC_FS_NAME_LEN 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #define BOOTSEC_OLDBPB_LEN 53
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #define EXFAT_FILE_NAME_LEN 15
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) #define EXFAT_MIN_SECT_SIZE_BITS 9
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) #define EXFAT_MAX_SECT_SIZE_BITS 12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #define EXFAT_MAX_SECT_PER_CLUS_BITS(x) (25 - (x)->sect_size_bits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /* EXFAT: Main and Backup Boot Sector (512 bytes) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) struct boot_sector {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) __u8 jmp_boot[BOOTSEC_JUMP_BOOT_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) __u8 fs_name[BOOTSEC_FS_NAME_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) __u8 must_be_zero[BOOTSEC_OLDBPB_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) __le64 partition_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) __le64 vol_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) __le32 fat_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) __le32 fat_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) __le32 clu_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) __le32 clu_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) __le32 root_cluster;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) __le32 vol_serial;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) __u8 fs_revision[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) __le16 vol_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) __u8 sect_size_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) __u8 sect_per_clus_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) __u8 num_fats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) __u8 drv_sel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) __u8 percent_in_use;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) __u8 reserved[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) __u8 boot_code[390];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) __le16 signature;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) struct exfat_dentry {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) __u8 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) __u8 num_ext;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) __le16 checksum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) __le16 attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) __le16 reserved1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) __le16 create_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) __le16 create_date;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) __le16 modify_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) __le16 modify_date;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) __le16 access_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) __le16 access_date;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) __u8 create_time_cs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) __u8 modify_time_cs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) __u8 create_tz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) __u8 modify_tz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) __u8 access_tz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) __u8 reserved2[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) } __packed file; /* file directory entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) __u8 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) __u8 reserved1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) __u8 name_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) __le16 name_hash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) __le16 reserved2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) __le64 valid_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) __le32 reserved3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) __le32 start_clu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) __le64 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) } __packed stream; /* stream extension directory entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) __u8 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) __le16 unicode_0_14[EXFAT_FILE_NAME_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) } __packed name; /* file name directory entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) __u8 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) __u8 reserved[18];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) __le32 start_clu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) __le64 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) } __packed bitmap; /* allocation bitmap directory entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) __u8 reserved1[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) __le32 checksum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) __u8 reserved2[12];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) __le32 start_clu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) __le64 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) } __packed upcase; /* up-case table directory entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) } __packed dentry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) #define EXFAT_TZ_VALID (1 << 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) /* Jan 1 GMT 00:00:00 1980 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) #define EXFAT_MIN_TIMESTAMP_SECS 315532800LL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) /* Dec 31 GMT 23:59:59 2107 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) #define EXFAT_MAX_TIMESTAMP_SECS 4354819199LL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) #endif /* !_EXFAT_RAW_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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