/* $Id: DrvNetShaper.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */ /** @file * NetShaperFilter - Network shaper filter driver. */ /* * Copyright (C) 2011-2023 Oracle and/or its affiliates. * * This file is part of VirtualBox base platform packages, as * available from https://www.virtualbox.org. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation, in version 3 of the * License. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . * * SPDX-License-Identifier: GPL-3.0-only */ /********************************************************************************************************************************* * Header Files * *********************************************************************************************************************************/ #define LOG_GROUP LOG_GROUP_NET_SHAPER #include #include #include #include #include #include #include #include #include "VBoxDD.h" /********************************************************************************************************************************* * Defined Constants And Macros * *********************************************************************************************************************************/ #if 0 #define VBOX_WITH_DRVNETSHAPER_IN_R0 #endif /********************************************************************************************************************************* * Structures and Typedefs * *********************************************************************************************************************************/ /** * Block driver instance data. * * @implements PDMINETWORKUP * @implements PDMINETWORKDOWN * @implements PDMINETWORKCONFIG */ typedef struct DRVNETSHAPER { /** Pointer to the driver instance. */ PPDMDRVINS pDrvInsR3; /** The network interface. */ PDMINETWORKUP INetworkUpR3; /** The connector that's attached to us. */ PPDMINETWORKUP pIBelowNetR3; #ifdef VBOX_WITH_DRVNETSHAPER_IN_R0 /** Pointer to the driver instance. */ PPDMDRVINSR0 pDrvInsR0; /** The network interface. */ PDMINETWORKUPR0 INetworkUpR0; /** The connector that's attached to us. */ PPDMINETWORKUPR0 pIBelowNetR0; /** Ring-3 base interface for the ring-0 context. */ PDMIBASER0 IBaseR0; /** Ring-3 base interface for the raw-mode context. */ PDMIBASERC IBaseRC; #endif /** For when we're the leaf driver. */ PDMCRITSECT XmitLock; /** The network interface. */ PDMINETWORKDOWN INetworkDown; /** The network config interface. * @todo this is a main interface and shouldn't be here... */ PDMINETWORKCONFIG INetworkConfig; /** The port we're attached to. */ PPDMINETWORKDOWN pIAboveNet; /** The config port interface we're attached to. */ PPDMINETWORKCONFIG pIAboveConfig; /** The filter that represents us at bandwidth group. */ PDMNSFILTER Filter; /** The name of bandwidth group we are attached to. */ char * pszBwGroup; /** TX: Total number of bytes to allocate. */ STAMCOUNTER StatXmitBytesRequested; /** TX: Number of bytes delayed. */ STAMCOUNTER StatXmitBytesDenied; /** TX: Number of bytes allowed to pass. */ STAMCOUNTER StatXmitBytesGranted; /** TX: Total number of packets being sent. */ STAMCOUNTER StatXmitPktsRequested; /** TX: Number of packets delayed. */ STAMCOUNTER StatXmitPktsDenied; /** TX: Number of packets allowed to pass. */ STAMCOUNTER StatXmitPktsGranted; /** TX: Number of calls to pfnXmitPending. */ STAMCOUNTER StatXmitPendingCalled; } DRVNETSHAPER, *PDRVNETSHAPER; /** * @interface_method_impl{PDMINETWORKUP,pfnBeginXmit} */ PDMBOTHCBDECL(int) drvNetShaperUp_BeginXmit(PPDMINETWORKUP pInterface, bool fOnWorkerThread) { PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, CTX_SUFF(INetworkUp)); if (RT_UNLIKELY(!pThis->CTX_SUFF(pIBelowNet))) { int rc = PDMDrvHlpCritSectTryEnter(pThis->CTX_SUFF(pDrvIns), &pThis->XmitLock); if (RT_UNLIKELY(rc == VERR_SEM_BUSY)) rc = VERR_TRY_AGAIN; return rc; } return pThis->CTX_SUFF(pIBelowNet)->pfnBeginXmit(pThis->CTX_SUFF(pIBelowNet), fOnWorkerThread); } /** * @interface_method_impl{PDMINETWORKUP,pfnAllocBuf} */ PDMBOTHCBDECL(int) drvNetShaperUp_AllocBuf(PPDMINETWORKUP pInterface, size_t cbMin, PCPDMNETWORKGSO pGso, PPPDMSCATTERGATHER ppSgBuf) { PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, CTX_SUFF(INetworkUp)); if (pThis->CTX_SUFF(pIBelowNet)) { //LogFlow(("drvNetShaperUp_AllocBuf: cb=%d\n", cbMin)); STAM_REL_COUNTER_ADD(&pThis->StatXmitBytesRequested, cbMin); STAM_REL_COUNTER_INC(&pThis->StatXmitPktsRequested); if (!PDMDrvHlpNetShaperAllocateBandwidth(pThis->CTX_SUFF(pDrvIns), &pThis->Filter, cbMin)) { STAM_REL_COUNTER_ADD(&pThis->StatXmitBytesDenied, cbMin); STAM_REL_COUNTER_INC(&pThis->StatXmitPktsDenied); return VERR_TRY_AGAIN; } STAM_REL_COUNTER_ADD(&pThis->StatXmitBytesGranted, cbMin); STAM_REL_COUNTER_INC(&pThis->StatXmitPktsGranted); //LogFlow(("drvNetShaperUp_AllocBuf: got cb=%d\n", cbMin)); return pThis->CTX_SUFF(pIBelowNet)->pfnAllocBuf(pThis->CTX_SUFF(pIBelowNet), cbMin, pGso, ppSgBuf); } return VERR_NET_DOWN; } /** * @interface_method_impl{PDMINETWORKUP,pfnFreeBuf} */ PDMBOTHCBDECL(int) drvNetShaperUp_FreeBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf) { PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, CTX_SUFF(INetworkUp)); if (RT_UNLIKELY(!pThis->CTX_SUFF(pIBelowNet))) return VERR_NET_DOWN; return pThis->CTX_SUFF(pIBelowNet)->pfnFreeBuf(pThis->CTX_SUFF(pIBelowNet), pSgBuf); } /** * @interface_method_impl{PDMINETWORKUP,pfnSendBuf} */ PDMBOTHCBDECL(int) drvNetShaperUp_SendBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf, bool fOnWorkerThread) { PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, CTX_SUFF(INetworkUp)); if (RT_UNLIKELY(!pThis->CTX_SUFF(pIBelowNet))) return VERR_NET_DOWN; return pThis->CTX_SUFF(pIBelowNet)->pfnSendBuf(pThis->CTX_SUFF(pIBelowNet), pSgBuf, fOnWorkerThread); } /** * @interface_method_impl{PDMINETWORKUP,pfnEndXmit} */ PDMBOTHCBDECL(void) drvNetShaperUp_EndXmit(PPDMINETWORKUP pInterface) { //LogFlow(("drvNetShaperUp_EndXmit:\n")); PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, CTX_SUFF(INetworkUp)); if (RT_LIKELY(pThis->CTX_SUFF(pIBelowNet))) pThis->CTX_SUFF(pIBelowNet)->pfnEndXmit(pThis->CTX_SUFF(pIBelowNet)); else PDMDrvHlpCritSectLeave(pThis->CTX_SUFF(pDrvIns), &pThis->XmitLock); } /** * @interface_method_impl{PDMINETWORKUP,pfnSetPromiscuousMode} */ PDMBOTHCBDECL(void) drvNetShaperUp_SetPromiscuousMode(PPDMINETWORKUP pInterface, bool fPromiscuous) { LogFlow(("drvNetShaperUp_SetPromiscuousMode: fPromiscuous=%d\n", fPromiscuous)); PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, CTX_SUFF(INetworkUp)); if (pThis->CTX_SUFF(pIBelowNet)) pThis->CTX_SUFF(pIBelowNet)->pfnSetPromiscuousMode(pThis->CTX_SUFF(pIBelowNet), fPromiscuous); } #ifdef IN_RING3 /** * @interface_method_impl{PDMINETWORKUP,pfnNotifyLinkChanged} */ static DECLCALLBACK(void) drvR3NetShaperUp_NotifyLinkChanged(PPDMINETWORKUP pInterface, PDMNETWORKLINKSTATE enmLinkState) { LogFlow(("drvNetShaperUp_NotifyLinkChanged: enmLinkState=%d\n", enmLinkState)); PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, CTX_SUFF(INetworkUp)); if (pThis->pIBelowNetR3) pThis->pIBelowNetR3->pfnNotifyLinkChanged(pThis->pIBelowNetR3, enmLinkState); } /** * @interface_method_impl{PDMINETWORKDOWN,pfnWaitReceiveAvail} */ static DECLCALLBACK(int) drvR3NetShaperDown_WaitReceiveAvail(PPDMINETWORKDOWN pInterface, RTMSINTERVAL cMillies) { PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkDown); return pThis->pIAboveNet->pfnWaitReceiveAvail(pThis->pIAboveNet, cMillies); } /** * @interface_method_impl{PDMINETWORKDOWN,pfnReceive} */ static DECLCALLBACK(int) drvR3NetShaperDown_Receive(PPDMINETWORKDOWN pInterface, const void *pvBuf, size_t cb) { PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkDown); return pThis->pIAboveNet->pfnReceive(pThis->pIAboveNet, pvBuf, cb); } /** * @interface_method_impl{PDMINETWORKDOWN,pfnReceiveGso} */ static DECLCALLBACK(int) drvR3NetShaperDown_ReceiveGso(PPDMINETWORKDOWN pInterface, const void *pvBuf, size_t cb, PCPDMNETWORKGSO pGso) { PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkDown); if (pThis->pIAboveNet->pfnReceiveGso) return pThis->pIAboveNet->pfnReceiveGso(pThis->pIAboveNet, pvBuf, cb, pGso); return VERR_NOT_SUPPORTED; } /** * @interface_method_impl{PDMINETWORKDOWN,pfnXmitPending} */ static DECLCALLBACK(void) drvR3NetShaperDown_XmitPending(PPDMINETWORKDOWN pInterface) { PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkDown); STAM_REL_COUNTER_INC(&pThis->StatXmitPendingCalled); pThis->pIAboveNet->pfnXmitPending(pThis->pIAboveNet); } /** * Gets the current Media Access Control (MAC) address. * * @returns VBox status code. * @param pInterface Pointer to the interface structure containing the called function pointer. * @param pMac Where to store the MAC address. * @thread EMT */ static DECLCALLBACK(int) drvR3NetShaperDownCfg_GetMac(PPDMINETWORKCONFIG pInterface, PRTMAC pMac) { PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkConfig); return pThis->pIAboveConfig->pfnGetMac(pThis->pIAboveConfig, pMac); } /** * Gets the new link state. * * @returns The current link state. * @param pInterface Pointer to the interface structure containing the called function pointer. * @thread EMT */ static DECLCALLBACK(PDMNETWORKLINKSTATE) drvR3NetShaperDownCfg_GetLinkState(PPDMINETWORKCONFIG pInterface) { PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkConfig); return pThis->pIAboveConfig->pfnGetLinkState(pThis->pIAboveConfig); } /** * Sets the new link state. * * @returns VBox status code. * @param pInterface Pointer to the interface structure containing the called function pointer. * @param enmState The new link state * @thread EMT */ static DECLCALLBACK(int) drvR3NetShaperDownCfg_SetLinkState(PPDMINETWORKCONFIG pInterface, PDMNETWORKLINKSTATE enmState) { PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, INetworkConfig); return pThis->pIAboveConfig->pfnSetLinkState(pThis->pIAboveConfig, enmState); } #ifdef VBOX_WITH_DRVNETSHAPER_IN_R0 /** * @interface_method_impl{PDMIBASER0,pfnQueryInterface} */ static DECLCALLBACK(RTR0PTR) drvR3NetShaperIBaseR0_QueryInterface(PPDMIBASER0 pInterface, const char *pszIID) { PDRVNETSHAPER pThis = RT_FROM_MEMBER(pInterface, DRVNETSHAPER, IBaseR0); /* * We need to check if the underlying driver supports R0. If it does not, * then it is useless and even harmful to support R0 here, as we will end up * returning errors when a network adapter tries to allocate a buffer in R0. */ if (pThis->pIBelowNetR0) PDMIBASER0_RETURN_INTERFACE(pThis->pDrvInsR3, pszIID, PDMINETWORKUP, &pThis->INetworkUpR0); return NIL_RTR0PTR; } /** * @interface_method_impl{PDMIBASERC,pfnQueryInterface} */ static DECLCALLBACK(RTRCPTR) drvR3NetShaperIBaseRC_QueryInterface(PPDMIBASERC pInterface, const char *pszIID) { RT_NOREF(pInterface, pszIID); return NIL_RTRCPTR; } #endif /** * @interface_method_impl{PDMIBASE,pfnQueryInterface} */ static DECLCALLBACK(void *) drvR3NetShaperIBase_QueryInterface(PPDMIBASE pInterface, const char *pszIID) { PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface); PDRVNETSHAPER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSHAPER); PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase); #ifdef VBOX_WITH_DRVNETSHAPER_IN_R0 PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASER0, &pThis->IBaseR0); PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASERC, &pThis->IBaseRC); #endif PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKUP, &pThis->INetworkUpR3); PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKDOWN, &pThis->INetworkDown); PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKCONFIG, &pThis->INetworkConfig); return NULL; } /** * @interface_method_impl{PDMDRVREG,pfnDetach} */ static DECLCALLBACK(void) drvR3NetShaperDetach(PPDMDRVINS pDrvIns, uint32_t fFlags) { RT_NOREF(fFlags); PDRVNETSHAPER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSHAPER); LogFlow(("drvNetShaperDetach: pDrvIns: %p, fFlags: %u\n", pDrvIns, fFlags)); PDMDrvHlpCritSectEnter(pDrvIns, &pThis->XmitLock, VERR_IGNORED); pThis->pIBelowNetR3 = NULL; #ifdef VBOX_WITH_DRVNETSHAPER_IN_R0 pThis->pIBelowNetR0 = NIL_RTR0PTR; #endif PDMDrvHlpCritSectLeave(pDrvIns, &pThis->XmitLock); } /** * @interface_method_impl{PDMDRVREG,pfnAttach} */ static DECLCALLBACK(int) drvR3NetShaperAttach(PPDMDRVINS pDrvIns, uint32_t fFlags) { PDRVNETSHAPER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSHAPER); LogFlow(("drvNetShaperAttach/#%#x: fFlags=%#x\n", pDrvIns->iInstance, fFlags)); PDMDrvHlpCritSectEnter(pDrvIns, &pThis->XmitLock, VERR_IGNORED); /* * Query the network connector interface. */ PPDMIBASE pBaseDown; int rc = PDMDrvHlpAttach(pDrvIns, fFlags, &pBaseDown); if ( rc == VERR_PDM_NO_ATTACHED_DRIVER || rc == VERR_PDM_CFG_MISSING_DRIVER_NAME) { pThis->pIBelowNetR3 = NULL; #ifdef VBOX_WITH_DRVNETSHAPER_IN_R0 pThis->pIBelowNetR0 = NIL_RTR0PTR; #endif rc = VINF_SUCCESS; } else if (RT_SUCCESS(rc)) { pThis->pIBelowNetR3 = PDMIBASE_QUERY_INTERFACE(pBaseDown, PDMINETWORKUP); if (pThis->pIBelowNetR3) { #ifdef VBOX_WITH_DRVNETSHAPER_IN_R0 PPDMIBASER0 pBaseR0 = PDMIBASE_QUERY_INTERFACE(pBaseDown, PDMIBASER0); pThis->pIBelowNetR0 = pBaseR0 ? pBaseR0->pfnQueryInterface(pBaseR0, PDMINETWORKUP_IID) : NIL_RTR0PTR; #endif rc = VINF_SUCCESS; } else { AssertMsgFailed(("Configuration error: the driver below didn't export the network connector interface!\n")); rc = VERR_PDM_MISSING_INTERFACE_BELOW; } } else AssertMsgFailed(("Failed to attach to driver below! rc=%Rrc\n", rc)); PDMDrvHlpCritSectLeave(pDrvIns, &pThis->XmitLock); return VINF_SUCCESS; } /** * @interface_method_impl{PDMDRVREG,pfnDestruct} */ static DECLCALLBACK(void) drvR3NetShaperDestruct(PPDMDRVINS pDrvIns) { PDRVNETSHAPER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSHAPER); PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns); PDMDrvHlpNetShaperDetach(pDrvIns, &pThis->Filter); if (PDMDrvHlpCritSectIsInitialized(pDrvIns, &pThis->XmitLock)) PDMDrvHlpCritSectDelete(pDrvIns, &pThis->XmitLock); } /** * @interface_method_impl{Construct a NAT network transport driver instance, * PDMDRVREG,pfnDestruct} */ static DECLCALLBACK(int) drvR3NetShaperConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags) { PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns); PDRVNETSHAPER pThis = PDMINS_2_DATA(pDrvIns, PDRVNETSHAPER); PCPDMDRVHLPR3 pHlp = pDrvIns->pHlpR3; LogFlow(("drvNetShaperConstruct:\n")); /* * Init the static parts. */ pThis->pDrvInsR3 = pDrvIns; #ifdef VBOX_WITH_DRVNETSHAPER_IN_R0 pThis->pDrvInsR0 = PDMDRVINS_2_R0PTR(pDrvIns); #endif /* IBase */ pDrvIns->IBase.pfnQueryInterface = drvR3NetShaperIBase_QueryInterface; #ifdef VBOX_WITH_DRVNETSHAPER_IN_R0 pThis->IBaseR0.pfnQueryInterface = drvR3NetShaperIBaseR0_QueryInterface; pThis->IBaseRC.pfnQueryInterface = drvR3NetShaperIBaseRC_QueryInterface; #endif /* INetworkUp */ pThis->INetworkUpR3.pfnBeginXmit = drvNetShaperUp_BeginXmit; pThis->INetworkUpR3.pfnAllocBuf = drvNetShaperUp_AllocBuf; pThis->INetworkUpR3.pfnFreeBuf = drvNetShaperUp_FreeBuf; pThis->INetworkUpR3.pfnSendBuf = drvNetShaperUp_SendBuf; pThis->INetworkUpR3.pfnEndXmit = drvNetShaperUp_EndXmit; pThis->INetworkUpR3.pfnSetPromiscuousMode = drvNetShaperUp_SetPromiscuousMode; pThis->INetworkUpR3.pfnNotifyLinkChanged = drvR3NetShaperUp_NotifyLinkChanged; #ifdef VBOX_WITH_DRVNETSHAPER_IN_R0 /* Resolve the ring-0 context interface addresses. */ if (true) { int rc = pDrvIns->pHlpR3->pfnLdrGetR0InterfaceSymbols(pDrvIns, &pThis->INetworkUpR0, sizeof(pThis->INetworkUpR0), "drvNetShaperUp_", PDMINETWORKUP_SYM_LIST); AssertLogRelRCReturn(rc, rc); } #endif /* INetworkDown */ pThis->INetworkDown.pfnWaitReceiveAvail = drvR3NetShaperDown_WaitReceiveAvail; pThis->INetworkDown.pfnReceive = drvR3NetShaperDown_Receive; pThis->INetworkDown.pfnReceiveGso = drvR3NetShaperDown_ReceiveGso; pThis->INetworkDown.pfnXmitPending = drvR3NetShaperDown_XmitPending; /* INetworkConfig */ pThis->INetworkConfig.pfnGetMac = drvR3NetShaperDownCfg_GetMac; pThis->INetworkConfig.pfnGetLinkState = drvR3NetShaperDownCfg_GetLinkState; pThis->INetworkConfig.pfnSetLinkState = drvR3NetShaperDownCfg_SetLinkState; /* * Create the locks. */ int rc = PDMDrvHlpCritSectInit(pDrvIns, &pThis->XmitLock, RT_SRC_POS, "NetShaper"); AssertRCReturn(rc, rc); /* * Validate the config. */ PDMDRV_VALIDATE_CONFIG_RETURN(pDrvIns, "BwGroup", ""); /* * Find the bandwidth group we have to attach to. */ rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "BwGroup", &pThis->pszBwGroup); if (RT_FAILURE(rc) && rc != VERR_CFGM_VALUE_NOT_FOUND) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("DrvNetShaper: Configuration error: Querying \"BwGroup\" as string failed")); pThis->Filter.pIDrvNetR3 = &pThis->INetworkDown; rc = PDMDrvHlpNetShaperAttach(pDrvIns, pThis->pszBwGroup, &pThis->Filter); if (RT_FAILURE(rc)) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("DrvNetShaper: Configuration error: Failed to attach to bandwidth group")); /* * Query the network port interface. */ pThis->pIAboveNet = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMINETWORKDOWN); if (!pThis->pIAboveNet) { AssertMsgFailed(("Configuration error: the above device/driver didn't export the network port interface!\n")); return VERR_PDM_MISSING_INTERFACE_ABOVE; } /* * Query the network config interface. */ pThis->pIAboveConfig = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMINETWORKCONFIG); if (!pThis->pIAboveConfig) { AssertMsgFailed(("Configuration error: the above device/driver didn't export the network config interface!\n")); return VERR_PDM_MISSING_INTERFACE_ABOVE; } /* * Query the network connector interface. */ PPDMIBASE pBaseDown = NULL; rc = PDMDrvHlpAttach(pDrvIns, fFlags, &pBaseDown); if ( rc == VERR_PDM_NO_ATTACHED_DRIVER || rc == VERR_PDM_CFG_MISSING_DRIVER_NAME) { pThis->pIBelowNetR3 = NULL; #ifdef VBOX_WITH_DRVNETSHAPER_IN_R0 pThis->pIBelowNetR0 = NIL_RTR0PTR; #endif } else if (RT_SUCCESS(rc)) { pThis->pIBelowNetR3 = PDMIBASE_QUERY_INTERFACE(pBaseDown, PDMINETWORKUP); if (!pThis->pIBelowNetR3) { AssertMsgFailed(("Configuration error: the driver below didn't export the network connector interface!\n")); return VERR_PDM_MISSING_INTERFACE_BELOW; } #ifdef VBOX_WITH_DRVNETSHAPER_IN_R0 PPDMIBASER0 pBaseR0 = PDMIBASE_QUERY_INTERFACE(pBaseDown, PDMIBASER0); pThis->pIBelowNetR0 = pBaseR0 ? pBaseR0->pfnQueryInterface(pBaseR0, PDMINETWORKUP_IID) : NIL_RTR0PTR; #endif } else { AssertMsgFailed(("Failed to attach to driver below! rc=%Rrc\n", rc)); return rc; } /* * Register statistics. */ PDMDrvHlpSTAMRegCounterEx(pDrvIns, &pThis->StatXmitBytesRequested, "Bytes/Tx/Requested", STAMUNIT_BYTES, "Number of requested TX bytes."); PDMDrvHlpSTAMRegCounterEx(pDrvIns, &pThis->StatXmitBytesDenied, "Bytes/Tx/Denied", STAMUNIT_BYTES, "Number of denied TX bytes."); PDMDrvHlpSTAMRegCounterEx(pDrvIns, &pThis->StatXmitBytesGranted, "Bytes/Tx/Granted", STAMUNIT_BYTES, "Number of granted TX bytes."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitPktsRequested, "Packets/Tx/Requested", "Number of requested TX packets."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitPktsDenied, "Packets/Tx/Denied", "Number of denied TX packets."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitPktsGranted, "Packets/Tx/Granted", "Number of granted TX packets."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitPendingCalled, "Tx/WakeUp", "Number of wakeup TX calls."); return VINF_SUCCESS; } /** * Network sniffer filter driver registration record. */ const PDMDRVREG g_DrvNetShaper = { /* u32Version */ PDM_DRVREG_VERSION, /* szName */ "NetShaper", /* szRCMod */ "", /* szR0Mod */ "VBoxDDR0.r0", /* pszDescription */ "Network Shaper Filter Driver", /* fFlags */ #ifdef VBOX_WITH_DRVNETSHAPER_IN_R0 PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT | PDM_DRVREG_FLAGS_R0, #else PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT, #endif /* fClass. */ PDM_DRVREG_CLASS_NETWORK, /* cMaxInstances */ UINT32_MAX, /* cbInstance */ sizeof(DRVNETSHAPER), /* pfnConstruct */ drvR3NetShaperConstruct, /* pfnDestruct */ drvR3NetShaperDestruct, /* pfnRelocate */ NULL, /* pfnIOCtl */ NULL, /* pfnPowerOn */ NULL, /* pfnReset */ NULL, /* pfnSuspend */ NULL, /* pfnResume */ NULL, /* pfnAttach */ drvR3NetShaperAttach, /* pfnDetach */ drvR3NetShaperDetach, /* pfnPowerOff */ NULL, /* pfnSoftReset */ NULL, /* u32EndVersion */ PDM_DRVREG_VERSION }; #endif /* IN_RING3 */