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/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
dlcreg.h
Abstract:
Defines, Structures, Typedefs, Macros, Externs and Prototypes for dlcreg.c
Author:
Richard L Firth (rfirth) 31-Mar-1993
Revision History:
30-Mar-1993 rfirth
created
04-May-1994 rfirth
Exposed GetAdapterParameters
--*/
#ifndef _DLCREG_
#define _DLCREG_
//
// manifests
//
#define PARAMETER_AS_SPECIFIED ((ULONG)-1)
#define PARAMETER_IS_BOOLEAN 1
#define PARAMETER_IS_UCHAR 2
//
// types
//
//
// REGISTRY_PARAMETER_DESCRIPTOR - structure used to get values from registry
// entries. Maintains information about a registry entry and supplies a default
// value should the registry entry not be available
//
typedef struct {
ULONG Type; // expected type
ULONG RealType; // eg. PARAMETER_BOOLEAN
PVOID Value; // default value if REG_DWORD, or pointer to default value
ULONG Length; // IN: expected length of variable; OUT: actual length
PVOID Variable; // pointer to variable to update from registry
ULONG LowerLimit; // lower limit for REG_DWORD values
ULONG UpperLimit; // upper limit for REG_DWORD values
} REGISTRY_PARAMETER_DESCRIPTOR, *PREGISTRY_PARAMETER_DESCRIPTOR;
//
// DLC_REGISTRY_PARAMETER - describes an entry in the DLC\Parameters\<adapter>
// section. Supplies the name of the parameter and its default value
//
typedef struct {
PWSTR ParameterName;
PVOID DefaultValue;
REGISTRY_PARAMETER_DESCRIPTOR Descriptor;
} DLC_REGISTRY_PARAMETER, *PDLC_REGISTRY_PARAMETER;
//
// ADAPTER_CONFIGURATION_INFO - for each adapter that DLC can talk to, there is
// potentially the following configuration information which can be stored in
// the DLC\Parameters\<adapter_name> key. The values are not necessarily stored
// in the format in which they are used internally
//
typedef struct {
//
// SwapAddressBits - when talking over Ethernet, defines whether to swap the
// outgoing destination address bits and incoming source address bits
//
BOOLEAN SwapAddressBits;
//
// UseDix - if the Ethernet type in the DIR.OPEN.ADAPTER is set to default,
// then we consult this flag to determine whether to send DIX or 802.3
// format Ethernet frames. The default is 802.3 (ie UseDix = 0)
//
BOOLEAN UseDix;
//
// T1TickOne, T2TickOne, TiTickOne, T1TickTwo, T2TickTwo, TiTickTwo - timer
// tick values in 40mSec increments. Contained in LLC_TICKS structure
//
LLC_TICKS TimerTicks;
//
// UseEthernetFrameSize - if set for a non-TR card then we use the value
// reported by ethernet cards for the maximum frame size, else we query
// the MAC for the maximum supported frame size.
// Bridging is the mother of this invention: we need some way to influence
// DLC's maximum frame size when talking over non-Token Ring nets - FDDI
// and Ethernet in this case.
//
BOOLEAN UseEthernetFrameSize;
} ADAPTER_CONFIGURATION_INFO, *PADAPTER_CONFIGURATION_INFO;
//
// prototypes
//
VOID
DlcRegistryInitialization(
IN PUNICODE_STRING RegistryPath
);
VOID
DlcRegistryTermination(
VOID
);
VOID
LoadDlcConfiguration(
VOID
);
VOID
LoadAdapterConfiguration(
IN PUNICODE_STRING AdapterName,
OUT PADAPTER_CONFIGURATION_INFO ConfigInfo
);
NTSTATUS
GetAdapterParameters(
IN PUNICODE_STRING AdapterName,
IN PDLC_REGISTRY_PARAMETER Parameters,
IN ULONG NumberOfParameters,
IN BOOLEAN SetOnFail
);
#endif // _DLCREG_
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