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Diffstat (limited to 'fs/ntfs3/ntfs.h')
-rw-r--r--fs/ntfs3/ntfs.h146
1 files changed, 76 insertions, 70 deletions
diff --git a/fs/ntfs3/ntfs.h b/fs/ntfs3/ntfs.h
index 86ea1826d099..552b97905813 100644
--- a/fs/ntfs3/ntfs.h
+++ b/fs/ntfs3/ntfs.h
@@ -59,7 +59,7 @@ struct GUID {
struct cpu_str {
u8 len;
u8 unused;
- u16 name[10];
+ u16 name[];
};
struct le_str {
@@ -82,9 +82,6 @@ typedef u32 CLST;
#define RESIDENT_LCN ((CLST)-2)
#define COMPRESSED_LCN ((CLST)-3)
-#define COMPRESSION_UNIT 4
-#define COMPRESS_MAX_CLUSTER 0x1000
-
enum RECORD_NUM {
MFT_REC_MFT = 0,
MFT_REC_MIRR = 1,
@@ -95,11 +92,10 @@ enum RECORD_NUM {
MFT_REC_BITMAP = 6,
MFT_REC_BOOT = 7,
MFT_REC_BADCLUST = 8,
- //MFT_REC_QUOTA = 9,
- MFT_REC_SECURE = 9, // NTFS 3.0
+ MFT_REC_SECURE = 9,
MFT_REC_UPCASE = 10,
- MFT_REC_EXTEND = 11, // NTFS 3.0
- MFT_REC_RESERVED = 11,
+ MFT_REC_EXTEND = 11,
+ MFT_REC_RESERVED = 12,
MFT_REC_FREE = 16,
MFT_REC_USER = 24,
};
@@ -109,7 +105,6 @@ enum ATTR_TYPE {
ATTR_STD = cpu_to_le32(0x10),
ATTR_LIST = cpu_to_le32(0x20),
ATTR_NAME = cpu_to_le32(0x30),
- // ATTR_VOLUME_VERSION on Nt4
ATTR_ID = cpu_to_le32(0x40),
ATTR_SECURE = cpu_to_le32(0x50),
ATTR_LABEL = cpu_to_le32(0x60),
@@ -118,7 +113,6 @@ enum ATTR_TYPE {
ATTR_ROOT = cpu_to_le32(0x90),
ATTR_ALLOC = cpu_to_le32(0xA0),
ATTR_BITMAP = cpu_to_le32(0xB0),
- // ATTR_SYMLINK on Nt4
ATTR_REPARSE = cpu_to_le32(0xC0),
ATTR_EA_INFO = cpu_to_le32(0xD0),
ATTR_EA = cpu_to_le32(0xE0),
@@ -144,6 +138,7 @@ enum FILE_ATTRIBUTE {
FILE_ATTRIBUTE_ENCRYPTED = cpu_to_le32(0x00004000),
FILE_ATTRIBUTE_VALID_FLAGS = cpu_to_le32(0x00007fb7),
FILE_ATTRIBUTE_DIRECTORY = cpu_to_le32(0x10000000),
+ FILE_ATTRIBUTE_INDEX = cpu_to_le32(0x20000000)
};
static_assert(sizeof(enum FILE_ATTRIBUTE) == 4);
@@ -266,7 +261,7 @@ enum RECORD_FLAG {
RECORD_FLAG_IN_USE = cpu_to_le16(0x0001),
RECORD_FLAG_DIR = cpu_to_le16(0x0002),
RECORD_FLAG_SYSTEM = cpu_to_le16(0x0004),
- RECORD_FLAG_UNKNOWN = cpu_to_le16(0x0008),
+ RECORD_FLAG_INDEX = cpu_to_le16(0x0008),
};
/* MFT Record structure. */
@@ -290,6 +285,15 @@ struct MFT_REC {
#define MFTRECORD_FIXUP_OFFSET_1 offsetof(struct MFT_REC, res)
#define MFTRECORD_FIXUP_OFFSET_3 offsetof(struct MFT_REC, fixups)
+/*
+ * define MFTRECORD_FIXUP_OFFSET as MFTRECORD_FIXUP_OFFSET_3 (0x30)
+ * to format new mft records with bigger header (as current ntfs.sys does)
+ *
+ * define MFTRECORD_FIXUP_OFFSET as MFTRECORD_FIXUP_OFFSET_1 (0x2A)
+ * to format new mft records with smaller header (as old ntfs.sys did)
+ * Both variants are valid.
+ */
+#define MFTRECORD_FIXUP_OFFSET MFTRECORD_FIXUP_OFFSET_1
static_assert(MFTRECORD_FIXUP_OFFSET_1 == 0x2A);
static_assert(MFTRECORD_FIXUP_OFFSET_3 == 0x30);
@@ -331,18 +335,18 @@ struct ATTR_NONRESIDENT {
__le64 svcn; // 0x10: Starting VCN of this segment.
__le64 evcn; // 0x18: End VCN of this segment.
__le16 run_off; // 0x20: Offset to packed runs.
- // Unit of Compression size for this stream, expressed
- // as a log of the cluster size.
+ // Unit of Compression size for this stream, expressed
+ // as a log of the cluster size.
//
- // 0 means file is not compressed
- // 1, 2, 3, and 4 are potentially legal values if the
- // stream is compressed, however the implementation
- // may only choose to use 4, or possibly 3. Note
- // that 4 means cluster size time 16. If convenient
- // the implementation may wish to accept a
- // reasonable range of legal values here (1-5?),
- // even if the implementation only generates
- // a smaller set of values itself.
+ // 0 means file is not compressed
+ // 1, 2, 3, and 4 are potentially legal values if the
+ // stream is compressed, however the implementation
+ // may only choose to use 4, or possibly 3.
+ // Note that 4 means cluster size time 16.
+ // If convenient the implementation may wish to accept a
+ // reasonable range of legal values here (1-5?),
+ // even if the implementation only generates
+ // a smaller set of values itself.
u8 c_unit; // 0x22:
u8 res1[5]; // 0x23:
__le64 alloc_size; // 0x28: The allocated size of attribute in bytes.
@@ -435,9 +439,6 @@ static inline u64 attr_svcn(const struct ATTRIB *attr)
return attr->non_res ? le64_to_cpu(attr->nres.svcn) : 0;
}
-/* The size of resident attribute by its resident size. */
-#define BYTES_PER_RESIDENT(b) (0x18 + (b))
-
static_assert(sizeof(struct ATTRIB) == 0x48);
static_assert(sizeof(((struct ATTRIB *)NULL)->res) == 0x08);
static_assert(sizeof(((struct ATTRIB *)NULL)->nres) == 0x38);
@@ -519,12 +520,10 @@ struct ATTR_LIST_ENTRY {
__le64 vcn; // 0x08: Starting VCN of this attribute.
struct MFT_REF ref; // 0x10: MFT record number with attribute.
__le16 id; // 0x18: struct ATTRIB ID.
- __le16 name[3]; // 0x1A: Just to align. To get real name can use bNameOffset.
+ __le16 name[]; // 0x1A: To get real name use name_off.
}; // sizeof(0x20)
-static_assert(sizeof(struct ATTR_LIST_ENTRY) == 0x20);
-
static inline u32 le_size(u8 name_len)
{
return ALIGN(offsetof(struct ATTR_LIST_ENTRY, name) +
@@ -562,8 +561,7 @@ struct NTFS_DUP_INFO {
__le64 alloc_size; // 0x20: Data attribute allocated size, multiple of cluster size.
__le64 data_size; // 0x28: Data attribute size <= Dataalloc_size.
enum FILE_ATTRIBUTE fa; // 0x30: Standard DOS attributes & more.
- __le16 ea_size; // 0x34: Packed EAs.
- __le16 reparse; // 0x36: Used by Reparse.
+ __le32 extend_data; // 0x34: Extended data.
}; // 0x38
@@ -694,14 +692,15 @@ static inline bool de_has_vcn_ex(const struct NTFS_DE *e)
offsetof(struct ATTR_FILE_NAME, name) + \
NTFS_NAME_LEN * sizeof(short), 8)
+#define NTFS_INDEX_HDR_HAS_SUBNODES cpu_to_le32(1)
+
struct INDEX_HDR {
__le32 de_off; // 0x00: The offset from the start of this structure
// to the first NTFS_DE.
__le32 used; // 0x04: The size of this structure plus all
// entries (quad-word aligned).
__le32 total; // 0x08: The allocated size of for this structure plus all entries.
- u8 flags; // 0x0C: 0x00 = Small directory, 0x01 = Large directory.
- u8 res[3];
+ __le32 flags; // 0x0C: 0x00 = Small directory, 0x01 = Large directory.
//
// de_off + used <= total
@@ -717,7 +716,7 @@ static inline struct NTFS_DE *hdr_first_de(const struct INDEX_HDR *hdr)
struct NTFS_DE *e;
u16 esize;
- if (de_off >= used || de_off + sizeof(struct NTFS_DE) > used )
+ if (de_off >= used || size_add(de_off, sizeof(struct NTFS_DE)) > used)
return NULL;
e = Add2Ptr(hdr, de_off);
@@ -749,7 +748,7 @@ static inline struct NTFS_DE *hdr_next_de(const struct INDEX_HDR *hdr,
static inline bool hdr_has_subnode(const struct INDEX_HDR *hdr)
{
- return hdr->flags & 1;
+ return hdr->flags & NTFS_INDEX_HDR_HAS_SUBNODES;
}
struct INDEX_BUFFER {
@@ -769,7 +768,7 @@ static inline bool ib_is_empty(const struct INDEX_BUFFER *ib)
static inline bool ib_is_leaf(const struct INDEX_BUFFER *ib)
{
- return !(ib->ihdr.flags & 1);
+ return !(ib->ihdr.flags & NTFS_INDEX_HDR_HAS_SUBNODES);
}
/* Index root structure ( 0x90 ). */
@@ -839,16 +838,22 @@ static_assert(sizeof(struct ATTR_DEF_ENTRY) == 0xa0);
/* Object ID (0x40) */
struct OBJECT_ID {
struct GUID ObjId; // 0x00: Unique Id assigned to file.
- struct GUID BirthVolumeId; // 0x10: Birth Volume Id is the Object Id of the Volume on.
- // which the Object Id was allocated. It never changes.
- struct GUID BirthObjectId; // 0x20: Birth Object Id is the first Object Id that was
- // ever assigned to this MFT Record. I.e. If the Object Id
- // is changed for some reason, this field will reflect the
- // original value of the Object Id.
- struct GUID DomainId; // 0x30: Domain Id is currently unused but it is intended to be
- // used in a network environment where the local machine is
- // part of a Windows 2000 Domain. This may be used in a Windows
- // 2000 Advanced Server managed domain.
+
+ // Birth Volume Id is the Object Id of the Volume on.
+ // which the Object Id was allocated. It never changes.
+ struct GUID BirthVolumeId; //0x10:
+
+ // Birth Object Id is the first Object Id that was
+ // ever assigned to this MFT Record. I.e. If the Object Id
+ // is changed for some reason, this field will reflect the
+ // original value of the Object Id.
+ struct GUID BirthObjectId; // 0x20:
+
+ // Domain Id is currently unused but it is intended to be
+ // used in a network environment where the local machine is
+ // part of a Windows 2000 Domain. This may be used in a Windows
+ // 2000 Advanced Server managed domain.
+ struct GUID DomainId; // 0x30:
};
static_assert(sizeof(struct OBJECT_ID) == 0x40);
@@ -858,32 +863,35 @@ struct NTFS_DE_O {
struct NTFS_DE de;
struct GUID ObjId; // 0x10: Unique Id assigned to file.
struct MFT_REF ref; // 0x20: MFT record number with this file.
- struct GUID BirthVolumeId; // 0x28: Birth Volume Id is the Object Id of the Volume on
- // which the Object Id was allocated. It never changes.
- struct GUID BirthObjectId; // 0x38: Birth Object Id is the first Object Id that was
- // ever assigned to this MFT Record. I.e. If the Object Id
- // is changed for some reason, this field will reflect the
- // original value of the Object Id.
- // This field is valid if data_size == 0x48.
- struct GUID BirthDomainId; // 0x48: Domain Id is currently unused but it is intended
- // to be used in a network environment where the local
- // machine is part of a Windows 2000 Domain. This may be
- // used in a Windows 2000 Advanced Server managed domain.
+
+ // Birth Volume Id is the Object Id of the Volume on
+ // which the Object Id was allocated. It never changes.
+ struct GUID BirthVolumeId; // 0x28:
+
+ // Birth Object Id is the first Object Id that was
+ // ever assigned to this MFT Record. I.e. If the Object Id
+ // is changed for some reason, this field will reflect the
+ // original value of the Object Id.
+ // This field is valid if data_size == 0x48.
+ struct GUID BirthObjectId; // 0x38:
+
+ // Domain Id is currently unused but it is intended
+ // to be used in a network environment where the local
+ // machine is part of a Windows 2000 Domain. This may be
+ // used in a Windows 2000 Advanced Server managed domain.
+ struct GUID BirthDomainId; // 0x48:
};
static_assert(sizeof(struct NTFS_DE_O) == 0x58);
-#define NTFS_OBJECT_ENTRY_DATA_SIZE1 \
- 0x38 // struct NTFS_DE_O.BirthDomainId is not used
-#define NTFS_OBJECT_ENTRY_DATA_SIZE2 \
- 0x48 // struct NTFS_DE_O.BirthDomainId is used
-
/* Q Directory entry structure ( rule = 0x11 ) */
struct NTFS_DE_Q {
struct NTFS_DE de;
__le32 owner_id; // 0x10: Unique Id assigned to file
+
+ /* here is 0x30 bytes of user quota. NOTE: 4 byte aligned! */
__le32 Version; // 0x14: 0x02
- __le32 flags2; // 0x18: Quota flags, see above
+ __le32 Flags; // 0x18: Quota flags, see above
__le64 BytesUsed; // 0x1C:
__le64 ChangeTime; // 0x24:
__le64 WarningLimit; // 0x28:
@@ -891,9 +899,9 @@ struct NTFS_DE_Q {
__le64 ExceededTime; // 0x3C:
// SID is placed here
-}; // sizeof() = 0x44
+}__packed; // sizeof() = 0x44
-#define SIZEOF_NTFS_DE_Q 0x44
+static_assert(sizeof(struct NTFS_DE_Q) == 0x44);
#define SecurityDescriptorsBlockSize 0x40000 // 256K
#define SecurityDescriptorMaxSize 0x20000 // 128K
@@ -915,7 +923,7 @@ struct SECURITY_HDR {
*/
} __packed;
-#define SIZEOF_SECURITY_HDR 0x14
+static_assert(sizeof(struct SECURITY_HDR) == 0x14);
/* SII Directory entry structure */
struct NTFS_DE_SII {
@@ -924,7 +932,8 @@ struct NTFS_DE_SII {
struct SECURITY_HDR sec_hdr; // 0x14:
} __packed;
-#define SIZEOF_SII_DIRENTRY 0x28
+static_assert(offsetof(struct NTFS_DE_SII, sec_hdr) == 0x14);
+static_assert(sizeof(struct NTFS_DE_SII) == 0x28);
/* SDH Directory entry structure */
struct NTFS_DE_SDH {
@@ -990,9 +999,6 @@ struct REPARSE_POINT {
static_assert(sizeof(struct REPARSE_POINT) == 0x18);
-/* Maximum allowed size of the reparse data. */
-#define MAXIMUM_REPARSE_DATA_BUFFER_SIZE (16 * 1024)
-
/*
* The value of the following constant needs to satisfy the following
* conditions:
@@ -1158,7 +1164,7 @@ struct REPARSE_DATA_BUFFER {
#define FILE_NEED_EA 0x80 // See ntifs.h
/*
- *FILE_NEED_EA, indicates that the file to which the EA belongs cannot be
+ * FILE_NEED_EA, indicates that the file to which the EA belongs cannot be
* interpreted without understanding the associated extended attributes.
*/
struct EA_INFO {
generated by cgit (git 2.34.1) at 2025-12-25 09:47:24 +0000