Source code of Windows XP (NT5)
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/*++
Copyright (c) Microsoft Corporation. All rights reserved.
Module Name:
qos.h - QoS definitions for NDIS components.
Abstract:
This module defines the Quality of Service structures and types used by Winsock applications.
Revision History:
--*/
#ifndef __QOS_H_#define __QOS_H_
/* * Definitions for valued-based Service Type for each direction of data flow. */
typedef ULONG SERVICETYPE;
#define SERVICETYPE_NOTRAFFIC 0x00000000 /* No data in this * direction */#define SERVICETYPE_BESTEFFORT 0x00000001 /* Best Effort */#define SERVICETYPE_CONTROLLEDLOAD 0x00000002 /* Controlled Load */#define SERVICETYPE_GUARANTEED 0x00000003 /* Guaranteed */
#define SERVICETYPE_NETWORK_UNAVAILABLE 0x00000004 /* Used to notify * change to user */#define SERVICETYPE_GENERAL_INFORMATION 0x00000005 /* corresponds to * "General Parameters" * defined by IntServ */#define SERVICETYPE_NOCHANGE 0x00000006 /* used to indicate * that the flow spec * contains no change * from any previous * one */#define SERVICETYPE_NONCONFORMING 0x00000009 /* Non-Conforming Traffic */#define SERVICETYPE_NETWORK_CONTROL 0x0000000A /* Network Control traffic */#define SERVICETYPE_QUALITATIVE 0x0000000D /* Qualitative applications */
/********* The usage of these is currently not supported. ***************/#define SERVICE_BESTEFFORT 0x80010000#define SERVICE_CONTROLLEDLOAD 0x80020000#define SERVICE_GUARANTEED 0x80040000#define SERVICE_QUALITATIVE 0x80200000/* **************************** ***** ************************************ */
/* * Flags to control the usage of RSVP on this flow. */
/* * to turn off traffic control, 'OR' ( | ) this flag with the * ServiceType field in the FLOWSPEC */#define SERVICE_NO_TRAFFIC_CONTROL 0x81000000
/* * this flag can be used to prevent any rsvp signaling messages from being * sent. Local traffic control will be invoked, but no RSVP Path messages * will be sent.This flag can also be used in conjunction with a receiving * flowspec to suppress the automatic generation of a Reserve message. * The application would receive notification that a Path message had arrived * and would then need to alter the QOS by issuing WSAIoctl( SIO_SET_QOS ), * to unset this flag and thereby causing Reserve messages to go out. */
#define SERVICE_NO_QOS_SIGNALING 0x40000000
/* * Flow Specifications for each direction of data flow. */typedef struct _flowspec{ ULONG TokenRate; /* In Bytes/sec */ ULONG TokenBucketSize; /* In Bytes */ ULONG PeakBandwidth; /* In Bytes/sec */ ULONG Latency; /* In microseconds */ ULONG DelayVariation; /* In microseconds */ SERVICETYPE ServiceType; ULONG MaxSduSize; /* In Bytes */ ULONG MinimumPolicedSize; /* In Bytes */
} FLOWSPEC, *PFLOWSPEC, * LPFLOWSPEC;
/* * this value can be used in the FLOWSPEC structure to instruct the Rsvp Service * provider to derive the appropriate default value for the parameter. Note * that not all values in the FLOWSPEC structure can be defaults. In the * ReceivingFlowspec, all parameters can be defaulted except the ServiceType. * In the SendingFlowspec, the MaxSduSize and MinimumPolicedSize can be * defaulted. Other defaults may be possible. Refer to the appropriate * documentation. */#define QOS_NOT_SPECIFIED 0xFFFFFFFF
/* * define a value that can be used for the PeakBandwidth, which will map into * positive infinity when the FLOWSPEC is converted into IntServ floating point * format. We can't use (-1) because that value was previously defined to mean * "select the default". */#define POSITIVE_INFINITY_RATE 0xFFFFFFFE
/* * the provider specific structure can have a number of objects in it. * Each next structure in the * ProviderSpecific will be the QOS_OBJECT_HDR struct that prefaces the actual * data with a type and length for that object. This QOS_OBJECT struct can * repeat several times if there are several objects. This list of objects * terminates either when the buffer length has been reached ( WSABUF ) or * an object of type QOS_END_OF_LIST is encountered. */typedef struct {
ULONG ObjectType; ULONG ObjectLength; /* the length of object buffer INCLUDING * this header */
} QOS_OBJECT_HDR, *LPQOS_OBJECT_HDR;
/* * general QOS objects start at this offset from the base and have a range * of 1000 */#define QOS_GENERAL_ID_BASE 2000
#define QOS_OBJECT_END_OF_LIST (0x00000001 + QOS_GENERAL_ID_BASE) /* QOS_End_of_list structure passed */#define QOS_OBJECT_SD_MODE (0x00000002 + QOS_GENERAL_ID_BASE) /* QOS_ShapeDiscard structure passed */#define QOS_OBJECT_SHAPING_RATE (0x00000003 + QOS_GENERAL_ID_BASE) /* QOS_ShapingRate structure */#define QOS_OBJECT_DESTADDR (0x00000004 + QOS_GENERAL_ID_BASE) /* QOS_DestAddr structure (defined in qossp.h) */
/* * This structure is used to define the behaviour that the traffic * control packet shaper will apply to the flow. * * TC_NONCONF_BORROW - the flow will receive resources remaining * after all higher priority flows have been serviced. If a * TokenRate is specified, packets may be non-conforming and * will be demoted to less than best-effort priority. * * TC_NONCONF_SHAPE - TokenRate must be specified. Non-conforming * packets will be retianed in the packet shaper until they become * conforming. * * TC_NONCONF_DISCARD - TokenRate must be specified. Non-conforming * packets will be discarded. * */
typedef struct _QOS_SD_MODE {
QOS_OBJECT_HDR ObjectHdr; ULONG ShapeDiscardMode;
} QOS_SD_MODE, *LPQOS_SD_MODE;
#define TC_NONCONF_BORROW 0#define TC_NONCONF_SHAPE 1#define TC_NONCONF_DISCARD 2#define TC_NONCONF_BORROW_PLUS 3 // Not supported currently
/* * This structure allows an app to specify a prorated "average token rate" using by * the traffic shaper under SHAPE modehaper queue. It is expressed in bytes per sec. * * ShapingRate (bytes per sec.) * */
typedef struct _QOS_SHAPING_RATE {
QOS_OBJECT_HDR ObjectHdr; ULONG ShapingRate;
} QOS_SHAPING_RATE, *LPQOS_SHAPING_RATE;
#endif /* __QOS_H_ */
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