2.2.2.2.4 AUX_PERF_CLIENTINFO Auxiliary Block Structure

The AUX_PERF_CLIENTINFO auxiliary block structure identifies which client to associate performance data with.

AdapterSpeed (4 bytes):  The speed of client computer's network adapter, in kilobits per second.

ClientID (2 bytes):  The client-assigned client identification number.

MachineNameOffset (2 bytes):  The offset from the beginning of the AUX_HEADER structure to the MachineName field. A value of zero indicates that the MachineName field is null or empty.

UserNameOffset (2 bytes):  The offset from the beginning of the AUX_HEADER structure to the UserName field. A value of zero indicates that the UserName field is null or empty.

ClientIPSize (2 bytes):  The size of the client IP address referenced by the ClientIPOffset field. The client IP address is located in the ClientIP field.

ClientIPOffset (2 bytes):  The offset from the beginning of the AUX_HEADER structure to the ClientIP field. A value of zero indicates that the ClientIP field is null or empty.

ClientIPMaskSize (2 bytes):  The size of the client IP subnet mask referenced by the ClientIPMaskOffset field. The client IP mask is located in the ClientIPMask field.

ClientIPMaskOffset (2 bytes):  The offset from the beginning of the AUX_HEADER structure to the ClientIPMask field. The size of the IP subnet mask is found in the ClientIPMaskSize field. A value of zero indicates that the ClientIPMask field is null or empty.

AdapterNameOffset (2 bytes):  The offset from the beginning of the AUX_HEADER structure to the AdapterName field. A value of zero indicates that the AdapterName field is null or empty.

MacAddressSize (2 bytes):  The size of the network adapter Media Access Control (MAC) address referenced by the MacAddressOffset field. The network adapter MAC address is located in the MacAddress field.

MacAddressOffset (2 bytes):  The offset from the beginning of the AUX_HEADER structure to the MacAddress field. A value of zero indicates that the MacAddress field is null or empty.

ClientMode (2 bytes):  A flag that shows the mode in which the client is running. The valid values are specified in the following table.

Reserved (2 bytes):  Padding to enforce alignment of the data on a 4-byte field.

MachineName (variable):  A null-terminated Unicode string that contains the client computer name. This variable field is offset from the beginning of the AUX_HEADER structure by the MachineNameOffset field value.

UserName (variable):  A null-terminated Unicode string that contains the user's account name. This variable field is offset from the beginning of the AUX_HEADER structure by the UserNameOffset field value.

ClientIP (variable):  The client's IP address. This field is offset from the beginning of the AUX_HEADER structure by the ClientIPOffset field value. The size of the client IP address data is found in the ClientIPSize field.

ClientIPMask (variable):  The client's IP subnet mask. This field is offset from the beginning of the AUX_HEADER structure by the ClientIPMaskOffset field value. The size of the client IP mask data is found in the ClientIPMaskSize field.

AdapterName (variable):  A null-terminated Unicode string that contains the client network adapter name. This field is offset from the beginning of the AUX_HEADER structure by the AdapterNameOffset field value.

MacAddress (variable):  The client's network adapter MAC address. This field is offset from the beginning of the AUX_HEADER structure by the MacAddressOffset field value. The size of the network adapter MAC address data is found in the MacAddressSize field.