/* $Id: VBoxNetBaseService.cpp 63267 2016-08-10 13:34:15Z vboxsync $ */ /** @file * VBoxNetBaseService - common services for VBoxNetDHCP and VBoxNetNAT. */ /* * Copyright (C) 2009-2016 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. */ /********************************************************************************************************************************* * Header Files * *********************************************************************************************************************************/ #define LOG_GROUP LOG_GROUP_NET_SERVICE #include #include #include #include #include #include #include #include #include #include #include #include #include /* must come before getopt.h. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "VBoxNetLib.h" #include "VBoxNetBaseService.h" #ifdef RT_OS_WINDOWS /* WinMain */ # include # include #endif /********************************************************************************************************************************* * Structures and Typedefs * *********************************************************************************************************************************/ struct VBoxNetBaseService::Data { Data(const std::string& aServiceName, const std::string& aNetworkName): m_ServiceName(aServiceName), m_NetworkName(aNetworkName), m_enmTrunkType(kIntNetTrunkType_WhateverNone), m_pSession(NIL_RTR0PTR), m_cbSendBuf(128 * _1K), m_cbRecvBuf(256 * _1K), m_hIf(INTNET_HANDLE_INVALID), m_pIfBuf(NULL), m_cVerbosity(0), m_fNeedMain(false), m_EventQ(NULL), m_hThrRecv(NIL_RTTHREAD), fShutdown(false) { int rc = RTCritSectInit(&m_csThis); AssertRC(rc); }; std::string m_ServiceName; std::string m_NetworkName; std::string m_TrunkName; INTNETTRUNKTYPE m_enmTrunkType; RTMAC m_MacAddress; RTNETADDRIPV4 m_Ipv4Address; RTNETADDRIPV4 m_Ipv4Netmask; PSUPDRVSESSION m_pSession; uint32_t m_cbSendBuf; uint32_t m_cbRecvBuf; INTNETIFHANDLE m_hIf; /**< The handle to the network interface. */ PINTNETBUF m_pIfBuf; /**< Interface buffer. */ std::vector m_vecOptionDefs; int32_t m_cVerbosity; /* cs for syncing */ RTCRITSECT m_csThis; /* Controls whether service will connect SVC for runtime needs */ bool m_fNeedMain; /* Event Queue */ com::NativeEventQueue *m_EventQ; /** receiving thread, used only if main is used */ RTTHREAD m_hThrRecv; bool fShutdown; static DECLCALLBACK(int) recvLoop(RTTHREAD, void *); }; /********************************************************************************************************************************* * Global Variables * *********************************************************************************************************************************/ /* Commonly used options for network configuration */ static RTGETOPTDEF g_aGetOptDef[] = { { "--name", 'N', RTGETOPT_REQ_STRING }, { "--network", 'n', RTGETOPT_REQ_STRING }, { "--trunk-name", 't', RTGETOPT_REQ_STRING }, { "--trunk-type", 'T', RTGETOPT_REQ_STRING }, { "--mac-address", 'a', RTGETOPT_REQ_MACADDR }, { "--ip-address", 'i', RTGETOPT_REQ_IPV4ADDR }, { "--netmask", 'm', RTGETOPT_REQ_IPV4ADDR }, { "--verbose", 'v', RTGETOPT_REQ_NOTHING }, { "--need-main", 'M', RTGETOPT_REQ_BOOL }, }; DECLCALLBACK(int) VBoxNetBaseService::Data::recvLoop(RTTHREAD, void *pvUser) { VBoxNetBaseService *pThis = static_cast(pvUser); HRESULT hrc = com::Initialize(); AssertComRCReturn(hrc, VERR_INTERNAL_ERROR); pThis->doReceiveLoop(); return VINF_SUCCESS; } VBoxNetBaseService::VBoxNetBaseService(const std::string& aName, const std::string& aNetworkName):m(NULL) { m = new VBoxNetBaseService::Data(aName, aNetworkName); for(unsigned int i = 0; i < RT_ELEMENTS(g_aGetOptDef); ++i) m->m_vecOptionDefs.push_back(&g_aGetOptDef[i]); } VBoxNetBaseService::~VBoxNetBaseService() { /* * Close the interface connection. */ if (m) { shutdown(); if (m->m_hIf != INTNET_HANDLE_INVALID) { INTNETIFCLOSEREQ CloseReq; CloseReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; CloseReq.Hdr.cbReq = sizeof(CloseReq); CloseReq.pSession = m->m_pSession; CloseReq.hIf = m->m_hIf; m->m_hIf = INTNET_HANDLE_INVALID; int rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_INTNET_IF_CLOSE, 0, &CloseReq.Hdr); AssertRC(rc); } if (m->m_pSession != NIL_RTR0PTR) { SUPR3Term(false /*fForced*/); m->m_pSession = NIL_RTR0PTR; } RTCritSectDelete(&m->m_csThis); delete m; m = NULL; } } int VBoxNetBaseService::init() { if (isMainNeeded()) { HRESULT hrc = com::Initialize(); AssertComRCReturn(hrc, VERR_INTERNAL_ERROR); hrc = virtualboxClient.createInprocObject(CLSID_VirtualBoxClient); AssertComRCReturn(hrc, VERR_INTERNAL_ERROR); hrc = virtualboxClient->COMGETTER(VirtualBox)(virtualbox.asOutParam()); AssertComRCReturn(hrc, VERR_INTERNAL_ERROR); } return VINF_SUCCESS; } bool VBoxNetBaseService::isMainNeeded() const { return m->m_fNeedMain; } int VBoxNetBaseService::run() { /** * If the child class needs Main we start the receving thread which calls * doReceiveLoop and enter to event polling loop. For other clients we do * receiving on the current (main) thread. */ if (isMainNeeded()) return startReceiveThreadAndEnterEventLoop(); doReceiveLoop(); return VINF_SUCCESS; } /** * Parse the arguments. * * @returns 0 on success, fully bitched exit code on failure. * * @param argc Argument count. * @param argv Argument vector. */ int VBoxNetBaseService::parseArgs(int argc, char **argv) { RTGETOPTSTATE State; PRTGETOPTDEF paOptionArray = getOptionsPtr(); int rc = RTGetOptInit(&State, argc, argv, paOptionArray, m->m_vecOptionDefs.size(), 0, 0 /*fFlags*/); AssertRCReturn(rc, 49); #if 0 /* default initialization */ m_enmTrunkType = kIntNetTrunkType_WhateverNone; #endif Log2(("BaseService: parseArgs enter\n")); for (;;) { RTGETOPTUNION Val; rc = RTGetOpt(&State, &Val); if (!rc) break; switch (rc) { case 'N': // --name m->m_ServiceName = Val.psz; break; case 'n': // --network m->m_NetworkName = Val.psz; break; case 't': //--trunk-name m->m_TrunkName = Val.psz; break; case 'T': //--trunk-type if (!strcmp(Val.psz, "none")) m->m_enmTrunkType = kIntNetTrunkType_None; else if (!strcmp(Val.psz, "whatever")) m->m_enmTrunkType = kIntNetTrunkType_WhateverNone; else if (!strcmp(Val.psz, "netflt")) m->m_enmTrunkType = kIntNetTrunkType_NetFlt; else if (!strcmp(Val.psz, "netadp")) m->m_enmTrunkType = kIntNetTrunkType_NetAdp; else if (!strcmp(Val.psz, "srvnat")) m->m_enmTrunkType = kIntNetTrunkType_SrvNat; else { RTStrmPrintf(g_pStdErr, "Invalid trunk type '%s'\n", Val.psz); return 1; } break; case 'a': // --mac-address m->m_MacAddress = Val.MacAddr; break; case 'i': // --ip-address m->m_Ipv4Address = Val.IPv4Addr; break; case 'm': // --netmask m->m_Ipv4Netmask = Val.IPv4Addr; break; case 'v': // --verbose m->m_cVerbosity++; break; case 'V': // --version (missed) RTPrintf("%sr%u\n", RTBldCfgVersion(), RTBldCfgRevision()); return 1; case 'M': // --need-main m->m_fNeedMain = true; break; case 'h': // --help (missed) RTPrintf("%s Version %sr%u\n" "(C) 2009-" VBOX_C_YEAR " " VBOX_VENDOR "\n" "All rights reserved.\n" "\n" "Usage: %s \n" "\n" "Options:\n", RTProcShortName(), RTBldCfgVersion(), RTBldCfgRevision(), RTProcShortName()); for (unsigned int i = 0; i < m->m_vecOptionDefs.size(); i++) RTPrintf(" -%c, %s\n", m->m_vecOptionDefs[i]->iShort, m->m_vecOptionDefs[i]->pszLong); usage(); /* to print Service Specific usage */ return 1; default: { int rc1 = parseOpt(rc, Val); if (RT_FAILURE(rc1)) { rc = RTGetOptPrintError(rc, &Val); RTPrintf("Use --help for more information.\n"); return rc; } break; } } } RTMemFree(paOptionArray); return rc; } int VBoxNetBaseService::tryGoOnline(void) { /* * Open the session, load ring-0 and issue the request. */ int rc = SUPR3Init(&m->m_pSession); if (RT_FAILURE(rc)) { m->m_pSession = NIL_RTR0PTR; LogRel(("VBoxNetBaseService: SUPR3Init -> %Rrc\n", rc)); return rc; } char szPath[RTPATH_MAX]; rc = RTPathExecDir(szPath, sizeof(szPath) - sizeof("/VMMR0.r0")); if (RT_FAILURE(rc)) { LogRel(("VBoxNetBaseService: RTPathExecDir -> %Rrc\n", rc)); return rc; } rc = SUPR3LoadVMM(strcat(szPath, "/VMMR0.r0")); if (RT_FAILURE(rc)) { LogRel(("VBoxNetBaseService: SUPR3LoadVMM(\"%s\") -> %Rrc\n", szPath, rc)); return rc; } /* * Create the open request. */ PINTNETBUF pBuf; INTNETOPENREQ OpenReq; OpenReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; OpenReq.Hdr.cbReq = sizeof(OpenReq); OpenReq.pSession = m->m_pSession; RTStrCopy(OpenReq.szNetwork, sizeof(OpenReq.szNetwork), m->m_NetworkName.c_str()); OpenReq.szNetwork[sizeof(OpenReq.szNetwork) - 1] = '\0'; RTStrCopy(OpenReq.szTrunk, sizeof(OpenReq.szTrunk), m->m_TrunkName.c_str()); OpenReq.szTrunk[sizeof(OpenReq.szTrunk) - 1] = '\0'; OpenReq.enmTrunkType = m->m_enmTrunkType; OpenReq.fFlags = 0; /** @todo check this */ OpenReq.cbSend = m->m_cbSendBuf; OpenReq.cbRecv = m->m_cbRecvBuf; OpenReq.hIf = INTNET_HANDLE_INVALID; /* * Issue the request. */ Log2(("attempting to open/create network \"%s\"...\n", OpenReq.szNetwork)); rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_INTNET_OPEN, 0, &OpenReq.Hdr); if (RT_FAILURE(rc)) { Log2(("VBoxNetBaseService: SUPR3CallVMMR0Ex(,VMMR0_DO_INTNET_OPEN,) failed, rc=%Rrc\n", rc)); return rc; } m->m_hIf = OpenReq.hIf; Log2(("successfully opened/created \"%s\" - hIf=%#x\n", OpenReq.szNetwork, m->m_hIf)); /* * Get the ring-3 address of the shared interface buffer. */ INTNETIFGETBUFFERPTRSREQ GetBufferPtrsReq; GetBufferPtrsReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; GetBufferPtrsReq.Hdr.cbReq = sizeof(GetBufferPtrsReq); GetBufferPtrsReq.pSession = m->m_pSession; GetBufferPtrsReq.hIf = m->m_hIf; GetBufferPtrsReq.pRing3Buf = NULL; GetBufferPtrsReq.pRing0Buf = NIL_RTR0PTR; rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_INTNET_IF_GET_BUFFER_PTRS, 0, &GetBufferPtrsReq.Hdr); if (RT_FAILURE(rc)) { Log2(("VBoxNetBaseService: SUPR3CallVMMR0Ex(,VMMR0_DO_INTNET_IF_GET_BUFFER_PTRS,) failed, rc=%Rrc\n", rc)); return rc; } pBuf = GetBufferPtrsReq.pRing3Buf; Log2(("pBuf=%p cbBuf=%d cbSend=%d cbRecv=%d\n", pBuf, pBuf->cbBuf, pBuf->cbSend, pBuf->cbRecv)); m->m_pIfBuf = pBuf; /* * Activate the interface. */ INTNETIFSETACTIVEREQ ActiveReq; ActiveReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; ActiveReq.Hdr.cbReq = sizeof(ActiveReq); ActiveReq.pSession = m->m_pSession; ActiveReq.hIf = m->m_hIf; ActiveReq.fActive = true; rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_INTNET_IF_SET_ACTIVE, 0, &ActiveReq.Hdr); if (RT_SUCCESS(rc)) return 0; /* bail out */ Log2(("VBoxNetBaseService: SUPR3CallVMMR0Ex(,VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE,) failed, rc=%Rrc\n", rc)); /* ignore this error */ return VINF_SUCCESS; } void VBoxNetBaseService::shutdown(void) { syncEnter(); if (!m->fShutdown) { m->fShutdown = true; if (m->m_hThrRecv != NIL_RTTHREAD) { int rc = abortWait(); AssertRC(rc == VINF_SUCCESS || rc == VERR_SEM_DESTROYED); rc = m->m_EventQ->interruptEventQueueProcessing(); if (RT_SUCCESS(rc)) { rc = RTThreadWait(m->m_hThrRecv, 60000, NULL); if (RT_FAILURE(rc)) Log1WarningFunc(("RTThreadWait(%RTthrd) -> %Rrc\n", m->m_hThrRecv, rc)); } else { AssertMsgFailed(("interruptEventQueueProcessing() failed\n")); RTThreadWait(m->m_hThrRecv , 0, NULL); } } } syncLeave(); } int VBoxNetBaseService::syncEnter() { return RTCritSectEnter(&m->m_csThis); } int VBoxNetBaseService::syncLeave() { return RTCritSectLeave(&m->m_csThis); } int VBoxNetBaseService::waitForIntNetEvent(int cMillis) { INTNETIFWAITREQ WaitReq; LogFlowFunc(("ENTER:cMillis: %d\n", cMillis)); WaitReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; WaitReq.Hdr.cbReq = sizeof(WaitReq); WaitReq.pSession = m->m_pSession; WaitReq.hIf = m->m_hIf; WaitReq.cMillies = cMillis; int rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_INTNET_IF_WAIT, 0, &WaitReq.Hdr); LogFlowFuncLeaveRC(rc); return rc; } int VBoxNetBaseService::abortWait() { INTNETIFABORTWAITREQ AbortReq; LogFlowFunc(("ENTER:\n")); AbortReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; AbortReq.Hdr.cbReq = sizeof(AbortReq); AbortReq.pSession = m->m_pSession; AbortReq.hIf = m->m_hIf; AbortReq.fNoMoreWaits = true; int rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_INTNET_IF_ABORT_WAIT, 0, &AbortReq.Hdr); LogFlowFuncLeaveRC(rc); return rc; } /* S/G API */ int VBoxNetBaseService::sendBufferOnWire(PCINTNETSEG paSegs, size_t cSegs, size_t cbFrame) { /* Allocate frame */ PINTNETHDR pHdr = NULL; uint8_t *pbFrame = NULL; int rc = IntNetRingAllocateFrame(&m->m_pIfBuf->Send, (uint32_t)cbFrame, &pHdr, (void **)&pbFrame); AssertRCReturn(rc, rc); /* Now we fill pvFrame with S/G above */ size_t offFrame = 0; for (size_t idxSeg = 0; idxSeg < cSegs; ++idxSeg) { memcpy(&pbFrame[offFrame], paSegs[idxSeg].pv, paSegs[idxSeg].cb); offFrame += paSegs[idxSeg].cb; } /* Commit */ IntNetRingCommitFrameEx(&m->m_pIfBuf->Send, pHdr, cbFrame); LogFlowFuncLeaveRC(rc); return rc; } /** * forcible ask for send packet on the "wire" */ void VBoxNetBaseService::flushWire() { INTNETIFSENDREQ SendReq; SendReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; SendReq.Hdr.cbReq = sizeof(SendReq); SendReq.pSession = m->m_pSession; SendReq.hIf = m->m_hIf; int rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_INTNET_IF_SEND, 0, &SendReq.Hdr); AssertRCReturnVoid(rc); LogFlowFuncLeave(); } int VBoxNetBaseService::hlpUDPBroadcast(unsigned uSrcPort, unsigned uDstPort, void const *pvData, size_t cbData) const { return VBoxNetUDPBroadcast(m->m_pSession, m->m_hIf, m->m_pIfBuf, m->m_Ipv4Address, &m->m_MacAddress, uSrcPort, uDstPort, pvData, cbData); } const std::string VBoxNetBaseService::getServiceName() const { return m->m_ServiceName; } void VBoxNetBaseService::setServiceName(const std::string& aName) { m->m_ServiceName = aName; } const std::string VBoxNetBaseService::getNetworkName() const { return m->m_NetworkName; } void VBoxNetBaseService::setNetworkName(const std::string& aName) { m->m_NetworkName = aName; } const RTMAC VBoxNetBaseService::getMacAddress() const { return m->m_MacAddress; } void VBoxNetBaseService::setMacAddress(const RTMAC& aMac) { m->m_MacAddress = aMac; } const RTNETADDRIPV4 VBoxNetBaseService::getIpv4Address() const { return m->m_Ipv4Address; } void VBoxNetBaseService::setIpv4Address(const RTNETADDRIPV4& aAddress) { m->m_Ipv4Address = aAddress; } const RTNETADDRIPV4 VBoxNetBaseService::getIpv4Netmask() const { return m->m_Ipv4Netmask; } void VBoxNetBaseService::setIpv4Netmask(const RTNETADDRIPV4& aNetmask) { m->m_Ipv4Netmask = aNetmask; } uint32_t VBoxNetBaseService::getSendBufSize() const { return m->m_cbSendBuf; } void VBoxNetBaseService::setSendBufSize(uint32_t cbBuf) { m->m_cbSendBuf = cbBuf; } uint32_t VBoxNetBaseService::getRecvBufSize() const { return m->m_cbRecvBuf; } void VBoxNetBaseService::setRecvBufSize(uint32_t cbBuf) { m->m_cbRecvBuf = cbBuf; } int32_t VBoxNetBaseService::getVerbosityLevel() const { return m->m_cVerbosity; } void VBoxNetBaseService::setVerbosityLevel(int32_t aVerbosity) { m->m_cVerbosity = aVerbosity; } void VBoxNetBaseService::addCommandLineOption(const PRTGETOPTDEF optDef) { m->m_vecOptionDefs.push_back(optDef); } void VBoxNetBaseService::doReceiveLoop() { int rc; /* Well we're ready */ PINTNETRINGBUF pRingBuf = &m->m_pIfBuf->Recv; for (;;) { /* * Wait for a packet to become available. */ rc = waitForIntNetEvent(2000); if (rc == VERR_SEM_DESTROYED) break; if (RT_FAILURE(rc)) { if (rc == VERR_TIMEOUT || rc == VERR_INTERRUPTED) { /* do we want interrupt anyone ??? */ continue; } LogRel(("VBoxNetBaseService: waitForIntNetEvent returned %Rrc\n", rc)); AssertRCReturnVoid(rc); } /* * Process the receive buffer. */ PCINTNETHDR pHdr; while ((pHdr = IntNetRingGetNextFrameToRead(pRingBuf)) != NULL) { uint8_t const u8Type = pHdr->u8Type; size_t cbFrame = pHdr->cbFrame; switch (u8Type) { case INTNETHDR_TYPE_FRAME: { void *pvFrame = IntNetHdrGetFramePtr(pHdr, m->m_pIfBuf); rc = processFrame(pvFrame, cbFrame); if (RT_FAILURE(rc) && rc == VERR_IGNORED) { /* XXX: UDP + ARP for DHCP */ VBOXNETUDPHDRS Hdrs; size_t cb; void *pv = VBoxNetUDPMatch(m->m_pIfBuf, RTNETIPV4_PORT_BOOTPS, &m->m_MacAddress, VBOXNETUDP_MATCH_UNICAST | VBOXNETUDP_MATCH_BROADCAST | VBOXNETUDP_MATCH_CHECKSUM | (m->m_cVerbosity > 2 ? VBOXNETUDP_MATCH_PRINT_STDERR : 0), &Hdrs, &cb); if (pv && cb) processUDP(pv, cb); else VBoxNetArpHandleIt(m->m_pSession, m->m_hIf, m->m_pIfBuf, &m->m_MacAddress, m->m_Ipv4Address); } break; } case INTNETHDR_TYPE_GSO: { PCPDMNETWORKGSO pGso = IntNetHdrGetGsoContext(pHdr, m->m_pIfBuf); rc = processGSO(pGso, cbFrame); if (RT_FAILURE(rc) && rc == VERR_IGNORED) break; break; } case INTNETHDR_TYPE_PADDING: break; default: break; } IntNetRingSkipFrame(&m->m_pIfBuf->Recv); } /* loop */ } } int VBoxNetBaseService::startReceiveThreadAndEnterEventLoop() { AssertMsgReturn(isMainNeeded(), ("It's expected that we need Main"), VERR_INTERNAL_ERROR); /* start receiving thread */ int rc = RTThreadCreate(&m->m_hThrRecv, /* thread handle*/ &VBoxNetBaseService::Data::recvLoop, /* routine */ this, /* user data */ 128 * _1K, /* stack size */ RTTHREADTYPE_IO, /* type */ RTTHREADFLAGS_WAITABLE, /* flags */ "RECV"); AssertRCReturn(rc, rc); m->m_EventQ = com::NativeEventQueue::getMainEventQueue(); AssertPtrReturn(m->m_EventQ, VERR_INTERNAL_ERROR); while (!m->fShutdown) { rc = m->m_EventQ->processEventQueue(RT_INDEFINITE_WAIT); if (rc == VERR_INTERRUPTED) { LogFlow(("Event queue processing ended with rc=%Rrc\n", rc)); break; } } return VINF_SUCCESS; } void VBoxNetBaseService::debugPrint(int32_t iMinLevel, bool fMsg, const char *pszFmt, ...) const { if (iMinLevel <= m->m_cVerbosity) { va_list va; va_start(va, pszFmt); debugPrintV(iMinLevel, fMsg, pszFmt, va); va_end(va); } } /** * Print debug message depending on the m_cVerbosity level. * * @param iMinLevel The minimum m_cVerbosity level for this message. * @param fMsg Whether to dump parts for the current service message. * @param pszFmt The message format string. * @param va Optional arguments. */ void VBoxNetBaseService::debugPrintV(int iMinLevel, bool fMsg, const char *pszFmt, va_list va) const { RT_NOREF(fMsg); if (iMinLevel <= m->m_cVerbosity) { va_list vaCopy; /* This dude is *very* special, thus the copy. */ va_copy(vaCopy, va); RTStrmPrintf(g_pStdErr, "%s: %s: %N\n", RTProcShortName(), iMinLevel >= 2 ? "debug" : "info", pszFmt, &vaCopy); va_end(vaCopy); } } PRTGETOPTDEF VBoxNetBaseService::getOptionsPtr() { PRTGETOPTDEF pOptArray = NULL; pOptArray = (PRTGETOPTDEF)RTMemAlloc(sizeof(RTGETOPTDEF) * m->m_vecOptionDefs.size()); if (!pOptArray) return NULL; for (unsigned int i = 0; i < m->m_vecOptionDefs.size(); ++i) { PRTGETOPTDEF pOpt = m->m_vecOptionDefs[i]; memcpy(&pOptArray[i], pOpt, sizeof(*pOpt)); } return pOptArray; }