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2.2.5.3.1 Request

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SMB_Parameters: The SMB_Parameters section contains the relevant fields for the TRANS_QUERY_NMPIPE_STATE subcommand of the SMB_COM_TRANSACTION request.

WordCount (1 byte): This field value is the total number of SMB parameter words and MUST be 0x10.

Words (32 bytes):

TotalParameterCount (2 bytes): This field MUST be set to 0x0000.

TotalDataCount (2 bytes): This field MUST be set to 0x0000.

MaxParameterCount (2 bytes): This field SHOULD be set to 0x0002.

MaxDataCount (2 bytes): This field SHOULD be set to 0x0000 for this transaction.

MaxSetupCount (1 byte): This field SHOULD be set to 0x00.

Flags (2 bytes): This field SHOULD be set to 0x0000 for this request.

Timeout (4 bytes): This field SHOULD be set to 0x00000000 for this request.

ParameterCount (2 bytes): This field MUST be set to 0x0000.

DataCount (2 bytes): This field MUST be set to 0x0000.

SetupCount (1 byte): This field MUST be set to 0x02.

Setup (4 bytes):

Subcommand (2 bytes): This field MUST be set to the transaction subcommand value TRANS_QUERY_NMPIPE_STATE (0x0021).

FID (2 bytes): This field MUST be set to a valid FID of a named pipe received in a server response for a previous SMB command to open or create a named pipe. These commands include SMB_COM_OPEN, SMB_COM_CREATE, SMB_COM_CREATE_TEMPORARY, SMB_COM_CREATE_NEW, SMB_COM_OPEN_ANDX, SMB_COM_NT_CREATE_ANDX, and SMB_COM_NT_TRANSACT with subcommand NT_TRANSACT_CREATE.