// extension.h

typedef enum _NET_EXTENSION_TYPE {
  NetExtensionTypePacket = 1,
  NetExtensionTypeFragment = 2,
  NetExtensionTypeBuffer
} NET_EXTENSION_TYPE;
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Windows Driver Kit DDI reference (ne-extension-_net_extension_type)

NET_EXTENSION_TYPE enumeration

Description

The NET_EXTENSION_TYPE enumeration specifies the type of extension that a client driver is querying.

Constants

`NetExtensionTypePacket:1`

The extension is a NET_PACKET extension.

`NetExtensionTypeFragment:2`

The extension is a NET_FRAGMENT extension.

`NetExtensionTypeBuffer`

Reserved for system use.

Remarks

Client drivers pass this enumeration as a value to NET_EXTENSION_QUERY_INIT to differentiate between packet extensions and fragment extension queries during packet queue creation.

NET_EXTENSION_TYPE - NtDoc