TC_GEN_FILTER structure (traffic.h)

The TC_GEN_FILTER structure creates a filter that matches a certain set of packet attributes or criteria, which can subsequently be used to associate packets that meet the attribute criteria with a particular flow. The TC_GEN_FILTER structure uses its AddressType member to indicate a specific filter type to apply to the filter.

Syntax

typedef struct _TC_GEN_FILTER {
  USHORT AddressType;
  ULONG  PatternSize;
  PVOID  Pattern;
  PVOID  Mask;
} TC_GEN_FILTER, *PTC_GEN_FILTER;

Members

AddressType

Defines the filter type to be applied with the filter, as defined in Ntddndis.h. With the designation of a specific filter in AddressType, the generic filter structure TC_GEN_FILTER provides a specific filter type.

PatternSize

Size of the Pattern member, in bytes.

Pattern

Indicates the specific format of the pattern to be applied to the filter, such as IP_PATTERN. The pattern specifies which bits of a given packet should be evaluated when determining whether a packet is included in the filter.

Mask

A bitmask applied to the bits designated in the Pattern member. The application of the Mask member to the Pattern member determines which bits in the Pattern member are significant (should be applied to the filter criteria). Note that the Mask member must be of the same type as the Pattern member.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Header	traffic.h

See also

FLOWSPEC

IP_PATTERN