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NdisIfGetInterfaceIndexFromNetLuid (Compact 7)

  • Article

3/12/2014

This function gets the network interface index that is associated with a NET_LUID value.

Syntax

NDIS_STATUS
  NdisIfGetInterfaceIndexFromNetLuid(
    IN NET_LUID  NetLuid,
    OUT PNET_IFINDEX  pIfIndex
    );

Parameters

  • NetLuid
    A NET_LUID value that identifies a network interface.
  • pIfIndex
    A pointer to a caller-supplied interface index variable. If NdisIfGetInterfaceIndexFromNetLuid succeeds, NDIS writes the network interface index that is associated with the specified NET_LUID to this variable.

Return Value

NdisIfGetInterfaceIndexFromNetLuid returns one of the following status values:

Value Description

NDIS_STATUS_SUCCESS

The operation completed successfully.

NDIS_STATUS_INTERFACE_NOT_FOUND

NdisIfGetInterfaceIndexFromNetLuid failed because the specified NET_LUID was not present in the list of registered interfaces.

Remarks

NDIS drivers can call the NdisIfGetInterfaceIndexFromNetLuid function to obtain the network interface index that is associated with a NET_LUID value.

For the interfaces that the NDIS proxy provider service manages, NDIS provides the interface index and NET_LUID in various driver initialization structures:

  • Miniport drivers can obtain the interface index and NET_LUID for a miniport adapter in the NDIS_MINIPORT_INIT_PARAMETERS structure.
  • Filter drivers can obtain the interface index and NET_LUID for a filter module in the NDIS_FILTER_ATTACH_PARAMETERS structure.
  • Protocol drivers can obtain the interface index and NET_LUID of the highest and the lowest interfaces on a driver stack in the NDIS_BIND_PARAMETERS structure.

NDIS assigns an interface index to a network interface when the interface provider calls the NdisIfRegisterInterface function. An interface provider calls the NDIS_MAKE_NET_LUID macro to create the NET_LUID value before it registers an interface.

The interface index value can change without a device restart. Deregistering and reregistering an interface that is associated with a NET_LUID value might result in different interface index values. Do not confuse the interface index with the NET_LUID index that persists after a device restarts.

NDIS provides the NdisIfGetNetLuidFromInterfaceIndex function to obtain the NET_LUID value that is associated with a specified interface index.

Requirements

Header

ndis.h

See Also

Reference

NDIS Network Interface Functions
NDIS_BIND_PARAMETERS
NDIS_FILTER_ATTACH_PARAMETERS
NDIS_MAKE_NET_LUID
NDIS_MINIPORT_INIT_PARAMETERS
NdisIfGetNetLuidFromInterfaceIndex
NdisIfRegisterInterface

Other Resources

NET_LUID