FwxDataFilterPriorityClass enumeration

  • Article

Applies to: desktop apps only

The FwxDataFilterPriorityClass enumerated type contains values used to specify the order of data filters for the same connection. Within the same priority class, the order will be arbitrary.

Syntax

typedef enum FwxDataFilterPriorityClass { 
  fwx_dfpc_NAT,
  fwx_dfpc_Internal,
  fwx_dfpc_PostTrust,
  fwx_dfpc_Middle,
  fwx_dfpc_PreTrust,
  fwx_dfpc_External,
  fwx_dfpc_Emulation
} FwxDataFilterPriorityClass;

Constants

  • fwx_dfpc_NAT
    As close to the client as possible. This should be used only if the data filter is a SecureNAT editor.

  • fwx_dfpc_Internal
    As close to the client as possible for a non-SecureNAT filter.

  • fwx_dfpc_PostTrust
    Close to the client side.

  • fwx_dfpc_Middle
    Middle of the chain. Virus scanners should use this priority.

  • fwx_dfpc_PreTrust
    Close to the server side.

  • fwx_dfpc_External
    As close to the external source as possible.

  • fwx_dfpc_Emulation
    Used by emulation filters. The filter is the source of the data.

Remarks

Each priority setting is defined as being closer to the client or closer to the server. A data filter that is closer to the client is likely to be the first to examine data flowing from the client, and unlikely to be the first to examine data flowing to the client. A data filter that is closer to the server is likely to be the first to examine data flowing from the server to the client, and unlikely to be the first to examine data flowing from the client to the server.

Requirements

Minimum supported client

 None supported

Minimum supported server

 Windows Server 2008 R2, Windows Server 2008 with SP2 (64-bit only)

Version

 Forefront Threat Management Gateway (TMG) 2010

Header

 Wspfwext.idl

See also

Filter Enumerated Types

IFWXConnection::AttachDataFilter

IFWXConnection::AttachDataFilterWithDestination

IFWXConnection::EmulateConnection

IFWXSession::SetDataFilterFactory

 

 

Build date: 7/12/2010