2.2.4.41.2 Response

The server MUST populate the FID field only, unless the client has requested file attribute data by setting bit 0 of the Flags field in the request. If file attribute data is not requested, all fields following the FID in the response MUST be set to zero.

 SMB_Parameters
   {
   UCHAR WordCount;
   Words
     {
     UCHAR               AndXCommand;
     UCHAR               AndXReserved;
     USHORT              AndXOffset;
     USHORT              FID;
     SMB_FILE_ATTRIBUTES FileAttrs;
     UTIME               LastWriteTime;
     ULONG               FileDataSize;
     USHORT              AccessRights;
     USHORT              ResourceType;
     SMB_NMPIPE_STATUS   NMPipeStatus;
     USHORT              OpenResults;
     USHORT              Reserved[3];
     }
   }
 SMB_Data
   {
   USHORT ByteCount;
   }
            
            

SMB_Parameters (31 bytes):

0	1	2	3	4	5	6	7	8	9	1 0	1	2	3	4	5	6	7	8	9	2 0	1	2	3	4	5	6	7	8	9	3 0	1
WordCount								Words (30 bytes)
...
...
...

WordCount (1 byte): This field MUST be 0x0F.

Words (30 bytes):

0	1	2	3	4	5	6	7	8	9	1 0	1	2	3	4	5	6	7	8	9	2 0	1	2	3	4	5	6	7	8	9	3 0	1
AndXCommand								AndXReserved								AndXOffset
FID																FileAttrs
LastWriteTime
FileDataSize
AccessRights																ResourceType
NMPipeStatus																OpenResults
Reserved
...

AndXCommand (1 byte): The command code for the next SMB command in the packet. This value MUST be set to 0xFF if there are no additional SMB command responses in the server response packet.

AndXReserved (1 byte): A reserved field. This MUST be set to 0x00 when this response is sent, and the client MUST ignore this field.

AndXOffset (2 bytes): This field MUST be set to the offset, in bytes, from the start of the SMB Header (section 2.2.3.1) to the start of the WordCount field in the next SMB command response in this packet. This field is valid only if the AndXCommand field is not set to 0xFF. If AndXCommand is 0xFF, this field MUST be ignored by the client.

FID (2 bytes): A valid FID representing the open instance of the file.

FileAttrs (2 bytes): The actual file system attributes of the file. If none of the attribute bytes is set, the file attributes refer to a regular file.

LastWriteTime (4 bytes): A 32-bit integer time value of the last modification to the file.

FileDataSize (4 bytes): The number of bytes in the file. This field is advisory and MAY be used.

AccessRights (2 bytes): A 16-bit field that shows granted access rights to the file.

Name andvalue	Meaning
SMB_DA_ACCESS_READ 0x0000	Read-only Access
SMB_DA_ACCESS_WRITE 0x0001	Write-only Access
SMB_DA_ACCESS_READ_WRITE 0x0002	Read/Write Access

All other values are reserved and MUST NOT be used.

ResourceType (2 bytes): A 16-bit field that shows the resource type opened.

Name and value	Meaning
FileTypeDisk 0x0000	Disk file or directory.
FileTypeByteModePipe 0x0001	Byte mode named pipe.
FileTypeMessageModePipe 0x0002	Message-mode named pipe.
FileTypePrinter 0x0003	Printer device.
FileTypeCommDevice 0x0004	Character-mode device. When an extended protocol has been negotiated, this value allows a device to be opened for driver-level I/O. This provides direct access to real-time and interactive devices such as modems, scanners, and so on.
FileTypeUnknown 0xFFFF	Unknown file type.

All other values are reserved and MUST NOT be used.

NMPipeStatus (2 bytes): A 16-bit field that contains the status of the named pipe if the resource type opened is a named pipe.

This field is formatted as an SMB_NMPIPE_STATUS (section 2.2.1.3).

OpenResults (2 bytes): A 16-bit field that shows the results of the open operation.

Name and bitmask	Values	Meaning
OpenResult 0x0003	1	The file existed and was opened.
	2	The file did not exist and was therefore created.
	3	The file existed and was truncated.
	Other	Reserved
LockStatus 0x8000	0	No OpLock was requested, the OpLock could not be granted, or the server does not support OpLocks.
	1	An OpLock was requested by the client and was granted by the server.

Reserved (6 bytes): All entries MUST be 0x0000.

SMB_Data (2 bytes):

0	1	2	3	4	5	6	7	8	9	1 0	1	2	3	4	5	6	7	8	9	2 0	1	2	3	4	5	6	7	8	9	3 0	1
ByteCount

ByteCount (2 bytes): This field MUST be 0x0000. No data is sent by this message.

Error Codes