2.2.14 SMB2 CREATE Response

The SMB2 CREATE Response packet is sent by the server to notify the client of the status of its SMB2 CREATE Request. This response is composed of an SMB2 header, as specified in section 2.2.1, followed by this response structure.

StructureSize (2 bytes): The server MUST set this field to 89, indicating the size of the request structure, not including the header. The server MUST set this field to this value regardless of how long Buffer[] actually is in the request being sent.

OplockLevel (1 byte): The oplock level that is granted to the client for this open. This field MUST contain one of the following values.

Value	Meaning
SMB2_OPLOCK_LEVEL_NONE 0x00	No oplock was granted.
SMB2_OPLOCK_LEVEL_II 0x01	A level II oplock was granted.
SMB2_OPLOCK_LEVEL_EXCLUSIVE 0x08	An exclusive oplock was granted.
SMB2_OPLOCK_LEVEL_BATCH 0x09	A batch oplock was granted.
SMB2_OPLOCK_LEVEL_LEASE 0xFF	A lease is requested. If set, the response packet MUST contain an SMB2_CREATE_RESPONSE_LEASE create context.

Flags (1 byte): If the server implements the SMB 3.x dialect family, this field MUST be constructed using the following value. Otherwise, this field MUST NOT be used and MUST be reserved.

Value	Meaning
SMB2_CREATE_FLAG_REPARSEPOINT 0x01	When set, indicates the last portion of the file path is a reparse point. This MUST be used when the last component of a file opened is a reparse point, and the create request Create Options do not contain FILE_OPEN_REPARSE_POINT.

CreateAction (4 bytes): The action taken in establishing the open. This field MUST contain one of the following values.<57>

Value	Meaning
FILE_SUPERSEDED 0x00000000	An existing file was deleted and a new file was created in its place.
FILE_OPENED 0x00000001	An existing file was opened.
FILE_CREATED 0x00000002	A new file was created.
FILE_OVERWRITTEN 0x00000003	An existing file was overwritten.

CreationTime (8 bytes): The time when the file was created; in FILETIME format as specified in [MS-DTYP] section 2.3.3.

LastAccessTime (8 bytes): The time the file was last accessed; in FILETIME format as specified in [MS-DTYP] section 2.3.3.

LastWriteTime (8 bytes): The time when data was last written to the file; in FILETIME format as specified in [MS-DTYP] section 2.3.3.

ChangeTime (8 bytes): The time when the file was last modified; in FILETIME format as specified in [MS-DTYP] section 2.3.3.

AllocationSize (8 bytes): The size, in bytes, of the data that is allocated to the file.

EndofFile (8 bytes): The size, in bytes, of the file.

FileAttributes (4 bytes): The attributes of the file. The valid flags are as specified in [MS-FSCC] section 2.6.

Reserved2 (4 bytes): This field MUST NOT be used and MUST be reserved. The server SHOULD set this to 0, and the client MUST ignore it on receipt.<58>

FileId (16 bytes): An SMB2_FILEID, as specified in section 2.2.14.1.

The identifier of the open to a file or pipe that was established.

CreateContextsOffset (4 bytes): The offset, in bytes, from the beginning of the SMB2 header to the first 8-byte aligned SMB2_CREATE_CONTEXT response that is contained in this response. If none are being returned in the response, this value MUST be 0. These values are specified in section 2.2.14.2.

CreateContextsLength (4 bytes): The length, in bytes, of the list of SMB2_CREATE_CONTEXT response structures that are contained in this response.

Buffer (variable): A variable-length buffer that contains the list of create contexts that are contained in this response, as described by CreateContextsOffset and CreateContextsLength. This takes the form of a list of SMB2_CREATE_CONTEXT Response Values, as specified in section 2.2.14.2.