EthQueryGlobalFilterAddresses

VOID
    EthQueryGlobalFilterAddresses(
        OUT PNDIS_STATUS  Status,
        IN PETH_FILTER  Filter,
        IN UINT  SizeOfArray,
        OUT PUINT  NumberOfAddresses,
        IN OUT CHAR  AddressArray[][ETH_LENGTH_OF_ADDRESS]
        );

EthQueryGlobalFilterAddresses is called by the NIC driver to query the Ethernet filter library database for a list of multicast addresses associated with the network interface card.

Parameters

Status

Points to a caller-supplied variable in which this function returns the status of the query operation. Possible values are:

NDIS_STATUS_FAILURE
NDIS_STATUS_SUCCESS

Filter

Points to a previously created and initialized filter library database.

SizeOfArray

Specifies the byte count for the two-dimensional array to hold the addresses.

NumberOfAddresses

Points to the caller-supplied variable in which this function returns the number of addresses that it writes to the array.

AddressArray[][ETH_LENGTH_OF_ADDRESS]

Specifies the two-dimensional, caller-supplied array in which this function returns addresses currently associated with the network interface card.

Comments

The NIC driver calls this function before it alters registers on the network interface card to effect filtering. The timing of the call is important if a binding has altered the multicast address list. Before calling this function, the NIC driver uses ETH_NUMBER_OF_GLOBAL_FILTER_ADDRESSES to obtain the number of multicast addresses to be retrieved.

A caller must be holding the database spin lock to call EthQueryGlobalFilterAddresses, so the driver is running at IRQL DISPATCH_LEVEL.

See Also

ETH_NUMBER_OF_GLOBAL_FILTER_ADDRESSES