DrvNetShaper.cpp revision b0af0b78d25ede09c0d23b2be9163cf43c7ca6f8
3853N/A/* $Id$ */
3853N/A/** @file
3853N/A * NetShaperFilter - Network shaper filter driver.
3853N/A */
3853N/A
3853N/A/*
3853N/A * Copyright (C) 2006-2012 Oracle Corporation
3853N/A *
3853N/A * This file is part of VirtualBox Open Source Edition (OSE), as
3853N/A * available from http://www.virtualbox.org. This file is free software;
3853N/A * you can redistribute it and/or modify it under the terms of the GNU
3853N/A * General Public License (GPL) as published by the Free Software
3853N/A * Foundation, in version 2 as it comes in the "COPYING" file of the
3853N/A * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
3853N/A * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
3853N/A */
3853N/A
3853N/A
3853N/A/*******************************************************************************
3853N/A* Header Files *
3853N/A*******************************************************************************/
3853N/A#define LOG_GROUP LOG_GROUP_NET_SHAPER
3853N/A
3853N/A#include <VBox/vmm/pdmdrv.h>
4994N/A#include <VBox/vmm/pdmnetifs.h>
3853N/A#include <VBox/vmm/pdmnetshaper.h>
3853N/A
3853N/A#include <VBox/log.h>
3853N/A#include <iprt/assert.h>
3853N/A#include <iprt/critsect.h>
3853N/A#include <iprt/string.h>
3853N/A#include <iprt/uuid.h>
3853N/A
3853N/A#include "VBoxDD.h"
3853N/A
3853N/A/*******************************************************************************
3853N/A* Structures and Typedefs *
3853N/A*******************************************************************************/
3853N/A/**
3853N/A * Block driver instance data.
3853N/A *
3853N/A * @implements PDMINETWORKUP
3853N/A * @implements PDMINETWORKDOWN
3853N/A * @implements PDMINETWORKCONFIG
3853N/A */
3853N/Atypedef struct DRVNETSHAPER
3853N/A{
3853N/A /** The network interface. */
3853N/A PDMINETWORKUP INetworkUp;
3853N/A /** The network interface. */
3853N/A PDMINETWORKDOWN INetworkDown;
3853N/A /** The network config interface.
3853N/A * @todo this is a main interface and shouldn't be here... */
3853N/A PDMINETWORKCONFIG INetworkConfig;
3853N/A /** The port we're attached to. */
3853N/A PPDMINETWORKDOWN pIAboveNet;
3853N/A /** The config port interface we're attached to. */
3853N/A PPDMINETWORKCONFIG pIAboveConfig;
3853N/A /** The connector that's attached to us. */
3853N/A PPDMINETWORKUP pIBelowNet;
3853N/A /** The name of bandwidth group we are attached to. */
3853N/A char * pszBwGroup;
3853N/A /** The filter that represents us at bandwidth group. */
3853N/A PDMNSFILTER Filter;
3853N/A /** Pointer to the driver instance. */
3853N/A PPDMDRVINS pDrvIns;
3853N/A /** For when we're the leaf driver. */
3853N/A RTCRITSECT XmitLock;
3853N/A
3853N/A /** TX: Total number of bytes to allocate. */
3853N/A STAMCOUNTER StatXmitBytesRequested;
3853N/A /** TX: Number of bytes delayed. */
3853N/A STAMCOUNTER StatXmitBytesDenied;
3853N/A /** TX: Number of bytes allowed to pass. */
3853N/A STAMCOUNTER StatXmitBytesGranted;
3853N/A /** TX: Total number of packets being sent. */
3853N/A STAMCOUNTER StatXmitPktsRequested;
3853N/A /** TX: Number of packets delayed. */
3853N/A STAMCOUNTER StatXmitPktsDenied;
3853N/A /** TX: Number of packets allowed to pass. */
3853N/A STAMCOUNTER StatXmitPktsGranted;
3853N/A /** TX: Number of calls to pfnXmitPending. */
3853N/A STAMCOUNTER StatXmitPendingCalled;
4504N/A} DRVNETSHAPER, *PDRVNETSHAPER;
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{PDMINETWORKUP,pfnBeginXmit}
3853N/A */
3853N/Astatic DECLCALLBACK(int) drvNetShaperUp_BeginXmit(PPDMINETWORKUP pInterface, bool fOnWorkerThread)
3853N/A{
3853N/A PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkUp);
4134N/A if (RT_UNLIKELY(!pThis->pIBelowNet))
3853N/A {
3853N/A int rc = RTCritSectTryEnter(&pThis->XmitLock);
3853N/A if (RT_UNLIKELY(rc == VERR_SEM_BUSY))
3853N/A rc = VERR_TRY_AGAIN;
3853N/A return rc;
3853N/A }
3853N/A return pThis->pIBelowNet->pfnBeginXmit(pThis->pIBelowNet, fOnWorkerThread);
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{PDMINETWORKUP,pfnAllocBuf}
3853N/A */
3853N/Astatic DECLCALLBACK(int) drvNetShaperUp_AllocBuf(PPDMINETWORKUP pInterface, size_t cbMin,
3853N/A PCPDMNETWORKGSO pGso, PPPDMSCATTERGATHER ppSgBuf)
3853N/A{
3853N/A PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkUp);
3853N/A if (RT_UNLIKELY(!pThis->pIBelowNet))
3853N/A return VERR_NET_DOWN;
3853N/A //LogFlow(("drvNetShaperUp_AllocBuf: cb=%d\n", cbMin));
3853N/A STAM_REL_COUNTER_ADD(&pThis->StatXmitBytesRequested, cbMin);
3853N/A STAM_REL_COUNTER_INC(&pThis->StatXmitPktsRequested);
3853N/A if (!PDMR3NsAllocateBandwidth(&pThis->Filter, cbMin))
3853N/A {
3853N/A STAM_REL_COUNTER_ADD(&pThis->StatXmitBytesDenied, cbMin);
3853N/A STAM_REL_COUNTER_INC(&pThis->StatXmitPktsDenied);
3853N/A return VERR_TRY_AGAIN;
5030N/A }
5030N/A STAM_REL_COUNTER_ADD(&pThis->StatXmitBytesGranted, cbMin);
3853N/A STAM_REL_COUNTER_INC(&pThis->StatXmitPktsGranted);
3853N/A //LogFlow(("drvNetShaperUp_AllocBuf: got cb=%d\n", cbMin));
3853N/A return pThis->pIBelowNet->pfnAllocBuf(pThis->pIBelowNet, cbMin, pGso, ppSgBuf);
3853N/A}
3853N/A
3853N/A
4994N/A/**
4994N/A * @interface_method_impl{PDMINETWORKUP,pfnFreeBuf}
3853N/A */
3853N/Astatic DECLCALLBACK(int) drvNetShaperUp_FreeBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf)
3853N/A{
3853N/A PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkUp);
3853N/A if (RT_UNLIKELY(!pThis->pIBelowNet))
3853N/A return VERR_NET_DOWN;
3853N/A return pThis->pIBelowNet->pfnFreeBuf(pThis->pIBelowNet, pSgBuf);
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{PDMINETWORKUP,pfnSendBuf}
3853N/A */
3853N/Astatic DECLCALLBACK(int) drvNetShaperUp_SendBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf, bool fOnWorkerThread)
3853N/A{
3853N/A PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkUp);
3853N/A if (RT_UNLIKELY(!pThis->pIBelowNet))
3853N/A return VERR_NET_DOWN;
3853N/A
3853N/A return pThis->pIBelowNet->pfnSendBuf(pThis->pIBelowNet, pSgBuf, fOnWorkerThread);
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{PDMINETWORKUP,pfnEndXmit}
3853N/A */
3853N/Astatic DECLCALLBACK(void) drvNetShaperUp_EndXmit(PPDMINETWORKUP pInterface)
3853N/A{
3853N/A //LogFlow(("drvNetShaperUp_EndXmit:\n"));
3853N/A PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkUp);
3853N/A if (RT_LIKELY(pThis->pIBelowNet))
3853N/A pThis->pIBelowNet->pfnEndXmit(pThis->pIBelowNet);
3853N/A else
3853N/A RTCritSectLeave(&pThis->XmitLock);
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{PDMINETWORKUP,pfnSetPromiscuousMode}
3853N/A */
3853N/Astatic DECLCALLBACK(void) drvNetShaperUp_SetPromiscuousMode(PPDMINETWORKUP pInterface, bool fPromiscuous)
3853N/A{
3853N/A LogFlow(("drvNetShaperUp_SetPromiscuousMode: fPromiscuous=%d\n", fPromiscuous));
3853N/A PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkUp);
3853N/A if (pThis->pIBelowNet)
3853N/A pThis->pIBelowNet->pfnSetPromiscuousMode(pThis->pIBelowNet, fPromiscuous);
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{PDMINETWORKUP,pfnNotifyLinkChanged}
3853N/A */
3853N/Astatic DECLCALLBACK(void) drvNetShaperUp_NotifyLinkChanged(PPDMINETWORKUP pInterface, PDMNETWORKLINKSTATE enmLinkState)
3853N/A{
3853N/A LogFlow(("drvNetShaperUp_NotifyLinkChanged: enmLinkState=%d\n", enmLinkState));
3853N/A PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkUp);
3853N/A if (pThis->pIBelowNet)
3853N/A pThis->pIBelowNet->pfnNotifyLinkChanged(pThis->pIBelowNet, enmLinkState);
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{PDMINETWORKDOWN,pfnWaitReceiveAvail}
3853N/A */
3853N/Astatic DECLCALLBACK(int) drvNetShaperDown_WaitReceiveAvail(PPDMINETWORKDOWN pInterface, RTMSINTERVAL cMillies)
3853N/A{
3853N/A PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkDown);
3853N/A return pThis->pIAboveNet->pfnWaitReceiveAvail(pThis->pIAboveNet, cMillies);
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{PDMINETWORKDOWN,pfnReceive}
3853N/A */
3853N/Astatic DECLCALLBACK(int) drvNetShaperDown_Receive(PPDMINETWORKDOWN pInterface, const void *pvBuf, size_t cb)
3853N/A{
3853N/A PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkDown);
3853N/A return pThis->pIAboveNet->pfnReceive(pThis->pIAboveNet, pvBuf, cb);
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{PDMINETWORKDOWN,pfnXmitPending}
3853N/A */
3853N/Astatic DECLCALLBACK(void) drvNetShaperDown_XmitPending(PPDMINETWORKDOWN pInterface)
3853N/A{
3853N/A PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkDown);
3853N/A STAM_REL_COUNTER_INC(&pThis->StatXmitPendingCalled);
3853N/A pThis->pIAboveNet->pfnXmitPending(pThis->pIAboveNet);
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * Gets the current Media Access Control (MAC) address.
3853N/A *
3853N/A * @returns VBox status code.
3853N/A * @param pInterface Pointer to the interface structure containing the called function pointer.
3853N/A * @param pMac Where to store the MAC address.
3853N/A * @thread EMT
3853N/A */
3853N/Astatic DECLCALLBACK(int) drvNetShaperDownCfg_GetMac(PPDMINETWORKCONFIG pInterface, PRTMAC pMac)
3853N/A{
3853N/A PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkConfig);
3853N/A return pThis->pIAboveConfig->pfnGetMac(pThis->pIAboveConfig, pMac);
3853N/A}
3853N/A
3853N/A/**
3853N/A * Gets the new link state.
3853N/A *
3853N/A * @returns The current link state.
3853N/A * @param pInterface Pointer to the interface structure containing the called function pointer.
3853N/A * @thread EMT
3853N/A */
3853N/Astatic DECLCALLBACK(PDMNETWORKLINKSTATE) drvNetShaperDownCfg_GetLinkState(PPDMINETWORKCONFIG pInterface)
3853N/A{
3853N/A PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkConfig);
3853N/A return pThis->pIAboveConfig->pfnGetLinkState(pThis->pIAboveConfig);
3853N/A}
3853N/A
3853N/A/**
3853N/A * Sets the new link state.
3853N/A *
3853N/A * @returns VBox status code.
3853N/A * @param pInterface Pointer to the interface structure containing the called function pointer.
3853N/A * @param enmState The new link state
3853N/A * @thread EMT
3853N/A */
3853N/Astatic DECLCALLBACK(int) drvNetShaperDownCfg_SetLinkState(PPDMINETWORKCONFIG pInterface, PDMNETWORKLINKSTATE enmState)
3853N/A{
3853N/A PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkConfig);
3853N/A return pThis->pIAboveConfig->pfnSetLinkState(pThis->pIAboveConfig, enmState);
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{PDMIBASE,pfnQueryInterface}
3853N/A */
3853N/Astatic DECLCALLBACK(void *) drvNetShaperQueryInterface(PPDMIBASE pInterface, const char *pszIID)
3853N/A{
3853N/A PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
3853N/A PDRVNETSHAPER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSHAPER);
3853N/A PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
3853N/A PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKUP, &pThis->INetworkUp);
3853N/A PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKDOWN, &pThis->INetworkDown);
3853N/A PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKCONFIG, &pThis->INetworkConfig);
3853N/A return NULL;
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{PDMDRVREG,pfnDetach}
3853N/A */
3853N/Astatic DECLCALLBACK(void) drvNetShaperDetach(PPDMDRVINS pDrvIns, uint32_t fFlags)
3853N/A{
3853N/A PDRVNETSHAPER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSHAPER);
3853N/A
3853N/A LogFlow(("drvNetShaperDetach: pDrvIns: %p, fFlags: %u\n", pDrvIns, fFlags));
3853N/A RTCritSectEnter(&pThis->XmitLock);
3853N/A pThis->pIBelowNet = NULL;
3853N/A RTCritSectLeave(&pThis->XmitLock);
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{PDMDRVREG,pfnAttach}
3853N/A */
3853N/Astatic DECLCALLBACK(int) drvNetShaperAttach(PPDMDRVINS pDrvIns, uint32_t fFlags)
3853N/A{
3853N/A PDRVNETSHAPER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSHAPER);
3853N/A LogFlow(("drvNetShaperAttach/#%#x: fFlags=%#x\n", pDrvIns->iInstance, fFlags));
3853N/A RTCritSectEnter(&pThis->XmitLock);
3853N/A
3853N/A /*
3853N/A * Query the network connector interface.
3853N/A */
3853N/A PPDMIBASE pBaseDown;
3853N/A int rc = PDMDrvHlpAttach(pDrvIns, fFlags, &pBaseDown);
3853N/A if ( rc == VERR_PDM_NO_ATTACHED_DRIVER
3853N/A || rc == VERR_PDM_CFG_MISSING_DRIVER_NAME)
3853N/A {
3853N/A pThis->pIBelowNet = NULL;
3853N/A rc = VINF_SUCCESS;
3853N/A }
3853N/A else if (RT_SUCCESS(rc))
3853N/A {
3853N/A pThis->pIBelowNet = PDMIBASE_QUERY_INTERFACE(pBaseDown, PDMINETWORKUP);
3853N/A if (pThis->pIBelowNet)
3853N/A rc = VINF_SUCCESS;
3853N/A else
3853N/A {
3853N/A AssertMsgFailed(("Configuration error: the driver below didn't export the network connector interface!\n"));
3853N/A rc = VERR_PDM_MISSING_INTERFACE_BELOW;
3853N/A }
3853N/A }
3853N/A else
3853N/A AssertMsgFailed(("Failed to attach to driver below! rc=%Rrc\n", rc));
3853N/A
3853N/A RTCritSectLeave(&pThis->XmitLock);
3853N/A return VINF_SUCCESS;
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{PDMDRVREG,pfnDestruct}
3853N/A */
3853N/Astatic DECLCALLBACK(void) drvNetShaperDestruct(PPDMDRVINS pDrvIns)
3853N/A{
3853N/A PDRVNETSHAPER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSHAPER);
3853N/A PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
3853N/A
3853N/A PDMDrvHlpNetShaperDetach(pDrvIns, &pThis->Filter);
3853N/A
3853N/A if (RTCritSectIsInitialized(&pThis->XmitLock))
3853N/A RTCritSectDelete(&pThis->XmitLock);
3853N/A}
3853N/A
3853N/A
3853N/A/**
3853N/A * @interface_method_impl{Construct a NAT network transport driver instance,
3853N/A * PDMDRVREG,pfnDestruct}
3853N/A */
3853N/Astatic DECLCALLBACK(int) drvNetShaperConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
3853N/A{
3853N/A PDRVNETSHAPER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSHAPER);
3853N/A LogFlow(("drvNetShaperConstruct:\n"));
3853N/A PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
3853N/A
3853N/A /*
3853N/A * Init the static parts.
3853N/A */
3853N/A /* IBase */
3853N/A pDrvIns->IBase.pfnQueryInterface = drvNetShaperQueryInterface;
3853N/A /* INetworkUp */
3853N/A pThis->INetworkUp.pfnBeginXmit = drvNetShaperUp_BeginXmit;
3853N/A pThis->INetworkUp.pfnAllocBuf = drvNetShaperUp_AllocBuf;
3853N/A pThis->INetworkUp.pfnFreeBuf = drvNetShaperUp_FreeBuf;
3853N/A pThis->INetworkUp.pfnSendBuf = drvNetShaperUp_SendBuf;
3853N/A pThis->INetworkUp.pfnEndXmit = drvNetShaperUp_EndXmit;
3853N/A pThis->INetworkUp.pfnSetPromiscuousMode = drvNetShaperUp_SetPromiscuousMode;
3853N/A pThis->INetworkUp.pfnNotifyLinkChanged = drvNetShaperUp_NotifyLinkChanged;
3853N/A /* INetworkDown */
3853N/A pThis->INetworkDown.pfnWaitReceiveAvail = drvNetShaperDown_WaitReceiveAvail;
3853N/A pThis->INetworkDown.pfnReceive = drvNetShaperDown_Receive;
3853N/A pThis->INetworkDown.pfnXmitPending = drvNetShaperDown_XmitPending;
3853N/A /* INetworkConfig */
3853N/A pThis->INetworkConfig.pfnGetMac = drvNetShaperDownCfg_GetMac;
3853N/A pThis->INetworkConfig.pfnGetLinkState = drvNetShaperDownCfg_GetLinkState;
3853N/A pThis->INetworkConfig.pfnSetLinkState = drvNetShaperDownCfg_SetLinkState;
3853N/A
3853N/A /*
3853N/A * Create the locks.
3853N/A */
3853N/A int rc = RTCritSectInit(&pThis->XmitLock);
3853N/A AssertRCReturn(rc, rc);
3853N/A
3853N/A /*
3853N/A * Validate the config.
3853N/A */
3853N/A if (!CFGMR3AreValuesValid(pCfg, "BwGroup\0"))
3853N/A return VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES;
3853N/A
3853N/A /*
3853N/A * Find the bandwidth group we have to attach to.
3853N/A */
3853N/A rc = CFGMR3QueryStringAlloc(pCfg, "BwGroup", &pThis->pszBwGroup);
3853N/A if (RT_FAILURE(rc) && rc != VERR_CFGM_VALUE_NOT_FOUND)
3853N/A {
3853N/A rc = PDMDRV_SET_ERROR(pDrvIns, rc,
3853N/A N_("DrvNetShaper: Configuration error: Querying \"BwGroup\" as string failed"));
3853N/A return rc;
3853N/A }
3853N/A else
3853N/A rc = VINF_SUCCESS;
3853N/A
3853N/A rc = PDMDrvHlpNetShaperAttach(pDrvIns, pThis->pszBwGroup, &pThis->Filter);
3853N/A if (RT_FAILURE(rc))
3853N/A {
3853N/A rc = PDMDRV_SET_ERROR(pDrvIns, rc,
3853N/A N_("DrvNetShaper: Configuration error: Failed to attach to bandwidth group"));
3853N/A return rc;
3853N/A }
3853N/A
3853N/A /*
3853N/A * Query the network port interface.
3853N/A */
3853N/A pThis->pIAboveNet = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMINETWORKDOWN);
3853N/A if (!pThis->pIAboveNet)
3853N/A {
3853N/A AssertMsgFailed(("Configuration error: the above device/driver didn't export the network port interface!\n"));
3853N/A return VERR_PDM_MISSING_INTERFACE_ABOVE;
3853N/A }
3853N/A
3853N/A /*
4174N/A * Query the network config interface.
4174N/A */
3853N/A pThis->pIAboveConfig = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMINETWORKCONFIG);
3853N/A if (!pThis->pIAboveConfig)
3853N/A {
3853N/A AssertMsgFailed(("Configuration error: the above device/driver didn't export the network config interface!\n"));
3853N/A return VERR_PDM_MISSING_INTERFACE_ABOVE;
3853N/A }
3853N/A
3853N/A /*
3853N/A * Query the network connector interface.
3853N/A */
5057N/A PPDMIBASE pBaseDown;
5057N/A rc = PDMDrvHlpAttach(pDrvIns, fFlags, &pBaseDown);
5057N/A if ( rc == VERR_PDM_NO_ATTACHED_DRIVER
5057N/A || rc == VERR_PDM_CFG_MISSING_DRIVER_NAME)
3853N/A pThis->pIBelowNet = NULL;
3853N/A else if (RT_SUCCESS(rc))
3853N/A {
3853N/A pThis->pIBelowNet = PDMIBASE_QUERY_INTERFACE(pBaseDown, PDMINETWORKUP);
3853N/A if (!pThis->pIBelowNet)
3853N/A {
3853N/A AssertMsgFailed(("Configuration error: the driver below didn't export the network connector interface!\n"));
3853N/A return VERR_PDM_MISSING_INTERFACE_BELOW;
3853N/A }
3853N/A }
3853N/A else
3853N/A {
3853N/A AssertMsgFailed(("Failed to attach to driver below! rc=%Rrc\n", rc));
3853N/A return rc;
3853N/A }
3853N/A
3853N/A /*
3853N/A * Register statistics.
3853N/A */
3853N/A PDMDrvHlpSTAMRegCounterEx(pDrvIns, &pThis->StatXmitBytesRequested, "Bytes/Tx/Requested", STAMUNIT_BYTES, "Number of requested TX bytes.");
3853N/A PDMDrvHlpSTAMRegCounterEx(pDrvIns, &pThis->StatXmitBytesDenied, "Bytes/Tx/Denied", STAMUNIT_BYTES, "Number of denied TX bytes.");
3853N/A PDMDrvHlpSTAMRegCounterEx(pDrvIns, &pThis->StatXmitBytesGranted, "Bytes/Tx/Granted", STAMUNIT_BYTES, "Number of granted TX bytes.");
3853N/A
3853N/A PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitPktsRequested, "Packets/Tx/Requested", "Number of requested TX packets.");
3853N/A PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitPktsDenied, "Packets/Tx/Denied", "Number of denied TX packets.");
3853N/A PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitPktsGranted, "Packets/Tx/Granted", "Number of granted TX packets.");
3853N/A PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitPendingCalled, "Tx/WakeUp", "Number of wakeup TX calls.");
3853N/A
3853N/A return VINF_SUCCESS;
3853N/A}
3853N/A
3853N/A
3853N/A
3853N/A/**
3853N/A * Network sniffer filter driver registration record.
3853N/A */
4994N/Aconst PDMDRVREG g_DrvNetShaper =
3853N/A{
3853N/A /* u32Version */
3853N/A PDM_DRVREG_VERSION,
3853N/A /* szName */
3853N/A "NetShaper",
3853N/A /* szRCMod */
3853N/A "",
3853N/A /* szR0Mod */
3853N/A "",
5130N/A /* pszDescription */
5130N/A "Network Shaper Filter Driver",
5130N/A /* fFlags */
5130N/A PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
5130N/A /* fClass. */
5130N/A PDM_DRVREG_CLASS_NETWORK,
5130N/A /* cMaxInstances */
5130N/A UINT32_MAX,
5130N/A /* cbInstance */
5130N/A sizeof(DRVNETSHAPER),
5130N/A /* pfnConstruct */
3853N/A drvNetShaperConstruct,
3853N/A /* pfnDestruct */
3853N/A drvNetShaperDestruct,
3853N/A /* pfnRelocate */
3853N/A NULL,
3853N/A /* pfnIOCtl */
3853N/A NULL,
3853N/A /* pfnPowerOn */
3853N/A NULL,
3853N/A /* pfnReset */
3853N/A NULL,
3853N/A /* pfnSuspend */
3853N/A NULL,
3853N/A /* pfnResume */
3853N/A NULL,
3853N/A /* pfnAttach */
3853N/A drvNetShaperAttach,
3853N/A /* pfnDetach */
3853N/A drvNetShaperDetach,
3853N/A /* pfnPowerOff */
3853N/A NULL,
4994N/A /* pfnSoftReset */
3853N/A NULL,
3853N/A /* u32EndVersion */
4994N/A PDM_DRVREG_VERSION
3853N/A};
3853N/A
3853N/A