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[MS-FSCC]: File System Control Codes
2 Structures
2.3 FSCTL Structures
2.3.1 FSCTL_CREATE_OR_GET_OBJECT_ID Request
2.3.2 FSCTL_CREATE_OR_GET_OBJECT_ID Reply
2.3.3 FSCTL_DELETE_OBJECT_ID Request
2.3.4 FSCTL_DELETE_OBJECT_ID Reply
2.3.5 FSCTL_DELETE_REPARSE_POINT Request
2.3.6 FSCTL_DELETE_REPARSE_POINT Reply
2.3.7 FSCTL_FILESYSTEM_GET_STATISTICS Request
2.3.8 FSCTL_FILESYSTEM_GET_STATISTICS Reply
2.3.9 FSCTL_FIND_FILES_BY_SID Request
2.3.10 FSCTL_FIND_FILES_BY_SID Reply
2.3.11 FSCTL_GET_COMPRESSION Request
2.3.12 FSCTL_GET_COMPRESSION Reply
2.3.13 FSCTL_GET_NTFS_VOLUME_DATA Request
2.3.14 FSCTL_GET_NTFS_VOLUME_DATA Reply
2.3.15 FSCTL_GET_OBJECT_ID Request
2.3.16 FSCTL_GET_OBJECT_ID Reply
2.3.17 FSCTL_GET_REPARSE_POINT Request
2.3.18 FSCTL_GET_REPARSE_POINT Reply
2.3.19 FSCTL_GET_RETRIEVAL_POINTERS Request
2.3.20 FSCTL_GET_RETRIEVAL_POINTERS Reply
2.3.21 FSCTL_IS_PATHNAME_VALID Request
2.3.22 FSCTL_IS_PATHNAME_VALID Reply
2.3.23 FSCTL_LMR_SET_LINK_TRACKING_INFORMATION Request
2.3.24 FSCTL_LMR_SET_LINK_TRACKING_INFORMATION Reply
2.3.25 FSCTL_PIPE_PEEK request
2.3.26 FSCTL_PIPE_PEEK Reply
2.3.27 FSCTL_PIPE_WAIT Request
2.3.28 FSCTL_PIPE_WAIT Reply
2.3.29 FSCTL_PIPE_TRANSCEIVE Request
2.3.30 FSCTL_PIPE_TRANSCEIVE Reply
2.3.31 FSCTL_QUERY_ALLOCATED_RANGES Request
2.3.32 FSCTL_QUERY_ALLOCATED_RANGES Reply
2.3.33 FSCTL_QUERY_FAT_BPB Request
2.3.34 FSCTL_QUERY_FAT_BPB Reply
2.3.35 FSCTL_QUERY_FILE_REGIONS Request
2.3.36 FSCTL_QUERY_FILE_REGIONS Reply
2.3.37 FSCTL_QUERY_ON_DISK_VOLUME_INFO Request
2.3.38 FSCTL_QUERY_ON_DISK_VOLUME_INFO Reply
2.3.39 FSCTL_QUERY_SPARING_INFO Request
2.3.40 FSCTL_QUERY_SPARING_INFO Reply
2.3.41 FSCTL_READ_FILE_USN_DATA Request
2.3.42 FSCTL_READ_FILE_USN_DATA Reply
2.3.43 FSCTL_RECALL_FILE Request
2.3.44 FSCTL_RECALL_FILE Reply
2.3.45 FSCTL_SET_COMPRESSION Request
2.3.46 FSCTL_SET_COMPRESSION Reply
2.3.47 FSCTL_GET_INTEGRITY_INFORMATION_Request
2.3.48 FSCTL_GET_INTEGRITY_INFORMATION_Reply
2.3.49 FSCTL_SET_DEFECT_MANAGEMENT Request
2.3.50 FSCTL_SET_DEFECT_MANAGEMENT Reply
2.3.51 FSCTL_SET_ENCRYPTION Request
2.3.52 FSCTL_SET_ENCRYPTION Reply
2.3.53 FSCTL_SET_INTEGRITY_INFORMATION Request
2.3.54 FSCTL_SET_INTEGRITY_INFORMATION Reply
2.3.55 FSCTL_SET_OBJECT_ID Request
2.3.56 FSCTL_SET_OBJECT_ID Reply
2.3.57 FSCTL_SET_OBJECT_ID_EXTENDED Request
2.3.58 FSCTL_SET_OBJECT_ID_EXTENDED Reply
2.3.59 FSCTL_SET_REPARSE_POINT Request
2.3.60 FSCTL_SET_REPARSE_POINT Reply
2.3.61 FSCTL_SET_SPARSE Request
2.3.62 FSCTL_SET_SPARSE Reply
2.3.63 FSCTL_SET_ZERO_DATA Request
2.3.64 FSCTL_SET_ZERO_DATA Reply
2.3.65 FSCTL_SET_ZERO_ON_DEALLOCATION Request
2.3.66 FSCTL_SET_ZERO_ON_DEALLOCATION Reply
2.3.67 FSCTL_SIS_COPYFILE Request
2.3.68 FSCTL_SIS_COPYFILE Reply
2.3.69 FSCTL_WRITE_USN_CLOSE_RECORD Request
2.3.70 FSCTL_WRITE_USN_CLOSE_RECORD Reply
2.3.71 FSCTL_FILE_LEVEL_TRIM Request
2.3.72 FSCTL_FILE_LEVEL_TRIM Reply
2.3.73 FSCTL_OFFLOAD_READ Request
2.3.74 FSCTL_OFFLOAD_READ Reply
2.3.75 STORAGE_OFFLOAD_TOKEN
2.3.76 FSCTL_OFFLOAD_WRITE Request
2.3.77 FSCTL_OFFLOAD_WRITE Reply
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2.3.75 STORAGE_OFFLOAD_TOKEN

The STORAGE_OFFLOAD_TOKEN structure contains the Token to be used as a representation of the data contained within the portion of the file specified in the FSCTL_OFFLOAD_READ_INPUT data element at the time of the FSCTL_OFFLOAD_READ operation. This Token is used in FSCTL_OFFLOAD_READ and FSCTL_OFFLOAD_WRITE operations. The format of the data within this field is either vendor-specific or of a well-known type. The contents of this field MUST NOT be modified during subsequent operations.<62>

STORAGE_OFFLOAD_TOKEN structures are sent in big-endian format.

The STORAGE_OFFLOAD_TOKEN structure is as follows.


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TokenType

Reserved

TokenIdLength

TokenId

...

...

...

...

...

...

...

(TokenId cont'd for 118 rows)

TokenType (4 bytes): A 32-bit unsigned integer that defines the type of Token that is contained within the STORAGE_OFFLOAD_TOKEN structure. This field MUST contain one of the following values.

Value Meaning

STORAGE_OFFLOAD_TOKEN_TYPE_ZERO_DATA
0xFFFF0001

A well-known Token that indicates that the data logically represented by the Token is logically equivalent to zero.<63>

Reserved
0xFFFF0002 – 0xFFFFFFFF

Reserved for other well-known Tokens currently undefined.

Any other value.

A vendor-specific Token format is contained within the Token field.

Reserved (2 bytes): A 16-bit unsigned integer that is reserved. This field SHOULD be set to 0x0000 and MUST be ignored.

TokenIdLength (2 bytes): A 16-bit unsigned integer that defines the length of the TokenId field in bytes.

TokenId (504 bytes): A 504-byte unsigned integer that contains opaque vendor-specific data.

 
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