Main/src-client/GuestSessionImpl.cpp

	GuestSessionImpl.cpp revision 687794577e2e35c3cae67e692a7f2130d1262a82

/* $Id$ */
/** @file
 * VirtualBox Main - XXX.
 */

/*
 * Copyright (C) 2012 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                                                               *
*******************************************************************************/
#include "GuestImpl.h"
#include "GuestSessionImpl.h"

#include "Global.h"
#include "AutoCaller.h"
#include "Logging.h"

#include <iprt/env.h>

#include <VBox/com/array.h>


// constructor / destructor
/////////////////////////////////////////////////////////////////////////////

DEFINE_EMPTY_CTOR_DTOR(GuestSession)

HRESULT GuestSession::FinalConstruct(void)
{
    LogFlowThisFunc(("\n"));
    return BaseFinalConstruct();
}

void GuestSession::FinalRelease(void)
{
    LogFlowThisFuncEnter();
    uninit();
    BaseFinalRelease();
    LogFlowThisFuncLeave();
}

// public initializer/uninitializer for internal purposes only
/////////////////////////////////////////////////////////////////////////////

int GuestSession::init(Guest *aGuest, ULONG aSessionID,
                       Utf8Str aUser, Utf8Str aPassword, Utf8Str aDomain, Utf8Str aName)
{
    LogFlowThisFuncEnter();

    AssertPtrReturn(aGuest, VERR_INVALID_POINTER);
    AssertReturn(aSessionID, VERR_INVALID_PARAMETER);

    /* Enclose the state transition NotReady->InInit->Ready. */
    AutoInitSpan autoInitSpan(this);
    AssertReturn(autoInitSpan.isOk(), VERR_OBJECT_DESTROYED);

    mData.mParent = aGuest;
    mData.mId = aSessionID;

    mData.mCredentials.mUser = aUser;
    mData.mCredentials.mPassword = aPassword;
    mData.mCredentials.mDomain = aDomain;
    mData.mName = aName;

    /* Confirm a successful initialization when it's the case. */
    autoInitSpan.setSucceeded();

    LogFlowFuncLeaveRC(VINF_SUCCESS);
    return VINF_SUCCESS;
}

/**
 * Uninitializes the instance.
 * Called from FinalRelease().
 */
void GuestSession::uninit(void)
{
    LogFlowThisFuncEnter();

    /* Enclose the state transition Ready->InUninit->NotReady. */
    AutoUninitSpan autoUninitSpan(this);
    if (autoUninitSpan.uninitDone())
        return;

#ifdef VBOX_WITH_GUEST_CONTROL
    for (SessionDirectories::iterator itDirs = mData.mDirectories.begin();
         itDirs != mData.mDirectories.end(); ++itDirs)
    {
        (*itDirs)->uninit();
        (*itDirs).setNull();
    }
    mData.mDirectories.clear();

    for (SessionFiles::iterator itFiles = mData.mFiles.begin();
         itFiles != mData.mFiles.end(); ++itFiles)
    {
        (*itFiles)->uninit();
        (*itFiles).setNull();
    }
    mData.mFiles.clear();

    for (SessionProcesses::iterator itProcs = mData.mProcesses.begin();
         itProcs != mData.mProcesses.end(); ++itProcs)
    {
        itProcs->second->uninit();
        itProcs->second.setNull();
    }
    mData.mProcesses.clear();

    mData.mParent->sessionClose(this);

    LogFlowThisFuncLeave();
#endif
}

// implementation of public getters/setters for attributes
/////////////////////////////////////////////////////////////////////////////

STDMETHODIMP GuestSession::COMGETTER(User)(BSTR *aUser)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    CheckComArgOutPointerValid(aUser);

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);

    mData.mCredentials.mUser.cloneTo(aUser);

    LogFlowFuncLeaveRC(S_OK);
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::COMGETTER(Domain)(BSTR *aDomain)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    CheckComArgOutPointerValid(aDomain);

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);

    mData.mCredentials.mDomain.cloneTo(aDomain);

    LogFlowFuncLeaveRC(S_OK);
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::COMGETTER(Name)(BSTR *aName)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    CheckComArgOutPointerValid(aName);

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);

    mData.mName.cloneTo(aName);

    LogFlowFuncLeaveRC(S_OK);
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::COMGETTER(Id)(ULONG *aId)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    CheckComArgOutPointerValid(aId);

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);

    *aId = mData.mId;

    LogFlowFuncLeaveRC(S_OK);
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::COMGETTER(Timeout)(ULONG *aTimeout)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    CheckComArgOutPointerValid(aTimeout);

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);

    *aTimeout = mData.mTimeout;

    LogFlowFuncLeaveRC(S_OK);
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::COMGETTER(Environment)(ComSafeArrayOut(BSTR, aEnvironment))
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    CheckComArgOutSafeArrayPointerValid(aEnvironment);

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);

    size_t cEnvVars = mData.mEnvironment.Size();
    LogFlowThisFunc(("%s cEnvVars=%RU32\n", mData.mName.c_str(), cEnvVars));
    com::SafeArray<BSTR> environment(cEnvVars);

    for (size_t i = 0; i < cEnvVars; i++)
    {
        Bstr strEnv(mData.mEnvironment.Get(i));
        strEnv.cloneTo(&environment[i]);
    }
    environment.detachTo(ComSafeArrayOutArg(aEnvironment));

    LogFlowFuncLeaveRC(S_OK);
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::COMGETTER(Processes)(ComSafeArrayOut(IGuestProcess *, aProcesses))
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    CheckComArgOutSafeArrayPointerValid(aProcesses);

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);

    SafeIfaceArray<IGuestProcess> collection(mData.mProcesses);
    collection.detachTo(ComSafeArrayOutArg(aProcesses));

    LogFlowFuncLeaveRC(S_OK);
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::COMGETTER(Directories)(ComSafeArrayOut(IGuestDirectory *, aDirectories))
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    CheckComArgOutSafeArrayPointerValid(aDirectories);

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);

    SafeIfaceArray<IGuestDirectory> collection(mData.mDirectories);
    collection.detachTo(ComSafeArrayOutArg(aDirectories));

    LogFlowFuncLeaveRC(S_OK);
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::COMGETTER(Files)(ComSafeArrayOut(IGuestFile *, aFiles))
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    CheckComArgOutSafeArrayPointerValid(aFiles);

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);

    SafeIfaceArray<IGuestFile> collection(mData.mFiles);
    collection.detachTo(ComSafeArrayOutArg(aFiles));

    LogFlowFuncLeaveRC(S_OK);
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

// private methods
/////////////////////////////////////////////////////////////////////////////

int GuestSession::directoryClose(ComObjPtr<GuestDirectory> pDirectory)
{
    AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);

    for (SessionDirectories::iterator itDirs = mData.mDirectories.begin();
         itDirs != mData.mDirectories.end(); ++itDirs)
    {
        if (pDirectory == (*itDirs))
        {
            mData.mDirectories.erase(itDirs);
            return VINF_SUCCESS;
        }
    }

    return VERR_NOT_FOUND;
}

int GuestSession::dispatchToProcess(uint32_t uContextID, uint32_t uFunction, void *pvData, size_t cbData)
{
    AssertPtrReturn(pvData, VERR_INVALID_POINTER);
    AssertReturn(cbData, VERR_INVALID_PARAMETER);

    AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);

    SessionProcesses::const_iterator itProc
        = mData.mProcesses.find(VBOX_GUESTCTRL_CONTEXTID_GET_PROCESS(uContextID));
    if (itProc != mData.mProcesses.end())
    {
        ComObjPtr<GuestProcess> pProcess(itProc->second);
        Assert(!pProcess.isNull());

        alock.release();
        return pProcess->callbackDispatcher(uContextID, uFunction, pvData, cbData);
    }
    return VERR_NOT_FOUND;
}

int GuestSession::fileClose(ComObjPtr<GuestFile> pFile)
{
    AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);

    for (SessionFiles::iterator itFiles = mData.mFiles.begin();
         itFiles != mData.mFiles.end(); ++itFiles)
    {
        if (pFile == (*itFiles))
        {
            mData.mFiles.erase(itFiles);
            return VINF_SUCCESS;
        }
    }

    return VERR_NOT_FOUND;
}

const GuestCredentials& GuestSession::getCredentials(void)
{
    return mData.mCredentials;
}

const GuestEnvironment& GuestSession::getEnvironment(void)
{
    return mData.mEnvironment;
}

int GuestSession::processClose(ComObjPtr<GuestProcess> pProcess)
{
    AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);

    for (SessionProcesses::iterator itProcs = mData.mProcesses.begin();
         itProcs != mData.mProcesses.end(); ++itProcs)
    {
        if (pProcess == itProcs->second)
        {
            mData.mProcesses.erase(itProcs);
            return VINF_SUCCESS;
        }
    }

    return VERR_NOT_FOUND;
}

int GuestSession::processCreateExInteral(GuestProcessInfo &aProcInfo, IGuestProcess **aProcess)
{
    AssertPtrReturn(aProcess, VERR_INVALID_POINTER);

    /* Validate flags. */
    if (aProcInfo.mFlags)
    {
        if (   !(aProcInfo.mFlags & ProcessCreateFlag_IgnoreOrphanedProcesses)
            && !(aProcInfo.mFlags & ProcessCreateFlag_WaitForProcessStartOnly)
            && !(aProcInfo.mFlags & ProcessCreateFlag_Hidden)
            && !(aProcInfo.mFlags & ProcessCreateFlag_NoProfile))
        {
            return VERR_INVALID_PARAMETER;
        }
    }

    /* Adjust timeout. If set to 0, we define
     * an infinite timeout. */
    if (aProcInfo.mTimeoutMS == 0)
        aProcInfo.mTimeoutMS = UINT32_MAX;

    /** @tood Implement process priority + affinity. */

    int rc = VERR_MAX_THRDS_REACHED;

    AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);

    /* Create a new (host-based) process ID and assign it. */
    ULONG uNewProcessID = 0;
    ULONG uTries = 0;

    for (;;)
    {
        /* Is the context ID already used?  Try next ID ... */
        if (!processExists(uNewProcessID++, NULL /* pProgress */))
        {
            /* Callback with context ID was not found. This means
             * we can use this context ID for our new callback we want
             * to add below. */
            rc = VINF_SUCCESS;
            break;
        }

        if (++uTries == UINT32_MAX)
            break; /* Don't try too hard. */
    }
    if (RT_FAILURE(rc)) throw rc;

    ComObjPtr<GuestProcess> pGuestProcess;
    try
    {
        /* Create the session object. */
        HRESULT hr = pGuestProcess.createObject();
        if (FAILED(hr)) throw VERR_COM_UNEXPECTED;

        rc = pGuestProcess->init(mData.mParent->getConsole() /* Console */, this /* Session */,
                                 uNewProcessID, aProcInfo);
        if (RT_FAILURE(rc)) throw rc;

        mData.mProcesses[uNewProcessID] = pGuestProcess;

        /* Return guest session to the caller. */
        hr = pGuestProcess.queryInterfaceTo(aProcess);
        if (FAILED(hr)) throw VERR_COM_OBJECT_NOT_FOUND;
    }
    catch (int rc2)
    {
        rc = rc2;
    }

    return rc;
}

inline bool GuestSession::processExists(ULONG uProcessID, ComObjPtr<GuestProcess> *pProcess)
{
    AssertReturn(uProcessID, false);

    SessionProcesses::const_iterator it = mData.mProcesses.find(uProcessID);
    if (it != mData.mProcesses.end())
    {
        if (pProcess)
            *pProcess = it->second;
        return true;
    }
    return false;
}

inline int GuestSession::processGetByPID(ULONG uPID, ComObjPtr<GuestProcess> *pProcess)
{
    AssertReturn(uPID, false);
    /* pProcess is optional. */

    SessionProcesses::iterator it = mData.mProcesses.begin();
    for (; it != mData.mProcesses.end(); it++)
    {
        ComObjPtr<GuestProcess> pCurProc = it->second;
        AutoCaller procCaller(pCurProc);
        if (procCaller.rc())
            return VERR_COM_INVALID_OBJECT_STATE;

        if (it->second->getPID() == uPID)
        {
            if (pProcess)
                *pProcess = pCurProc;
            return VINF_SUCCESS;
        }
    }

    return VERR_NOT_FOUND;
}

// implementation of public methods
/////////////////////////////////////////////////////////////////////////////

STDMETHODIMP GuestSession::Close(void)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    uninit();

    LogFlowFuncLeaveRC(S_OK);
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::CopyFrom(IN_BSTR aSource, IN_BSTR aDest, ComSafeArrayIn(ULONG, aFlags), IProgress **aProgress)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::CopyTo(IN_BSTR aSource, IN_BSTR aDest, ComSafeArrayIn(ULONG, aFlags), IProgress **aProgress)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::DirectoryCreate(IN_BSTR aPath, ULONG aMode, ULONG aFlags, IGuestDirectory **aProgress)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::DirectoryCreateTemp(IN_BSTR aTemplate, ULONG aMode, IN_BSTR aName, IGuestDirectory **aDirectory)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::DirectoryExists(IN_BSTR aPath, BOOL *aExists)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::DirectoryOpen(IN_BSTR aPath, IN_BSTR aFilter, IN_BSTR aFlags, IGuestDirectory **aDirectory)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::DirectoryQueryInfo(IN_BSTR aPath, IGuestFsObjInfo **aInfo)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::DirectoryRemove(IN_BSTR aPath)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::DirectoryRemoveRecursive(IN_BSTR aPath, ComSafeArrayIn(DirectoryRemoveRecFlag_T, aFlags), IProgress **aProgress)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::DirectoryRename(IN_BSTR aSource, IN_BSTR aDest, ComSafeArrayIn(PathRenameFlag_T, aFlags))
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::DirectorySetACL(IN_BSTR aPath, IN_BSTR aACL)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::EnvironmentClear(void)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);

    mData.mEnvironment.Clear();

    LogFlowFuncLeaveRC(S_OK);
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::EnvironmentGet(IN_BSTR aName, BSTR *aValue)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    if (RT_UNLIKELY((aName) == NULL || *(aName) == '\0'))
        return setError(E_INVALIDARG, tr("No value name specified"));

    CheckComArgOutPointerValid(aValue);

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);

    Bstr strValue(mData.mEnvironment.Get(Utf8Str(aName)));
    strValue.cloneTo(aValue);

    LogFlowFuncLeaveRC(S_OK);
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::EnvironmentSet(IN_BSTR aName, IN_BSTR aValue)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    if (RT_UNLIKELY((aName) == NULL || *(aName) == '\0'))
        return setError(E_INVALIDARG, tr("No value name specified"));

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);

    int rc = mData.mEnvironment.Set(Utf8Str(aName), Utf8Str(aValue));

    HRESULT hr = RT_SUCCESS(rc) ? S_OK : VBOX_E_IPRT_ERROR;
    LogFlowFuncLeaveRC(hr);
    return hr;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::EnvironmentSetArray(ComSafeArrayIn(IN_BSTR, aValues))
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);

    com::SafeArray<IN_BSTR> environment(ComSafeArrayInArg(aValues));

    int rc = VINF_SUCCESS;
    for (size_t i = 0; i < environment.size() && RT_SUCCESS(rc); i++)
    {
        Utf8Str strEnv(environment[i]);
        if (!strEnv.isEmpty()) /* Silently skip empty entries. */
            rc = mData.mEnvironment.Set(strEnv);
    }

    HRESULT hr = RT_SUCCESS(rc) ? S_OK : VBOX_E_IPRT_ERROR;
    LogFlowFuncLeaveRC(hr);
    return hr;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::EnvironmentUnset(IN_BSTR aName)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);

    mData.mEnvironment.Unset(Utf8Str(aName));

    LogFlowFuncLeaveRC(S_OK);
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::FileCreateTemp(IN_BSTR aTemplate, ULONG aMode, IN_BSTR aName, IGuestFile **aFile)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::FileExists(IN_BSTR aPath, BOOL *aExists)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::FileOpen(IN_BSTR aPath, IN_BSTR aOpenMode, IN_BSTR aDisposition, ULONG aCreationMode, LONG64 aOffset, IGuestFile **aFile)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::FileQueryInfo(IN_BSTR aPath, IGuestFsObjInfo **aInfo)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::FileQuerySize(IN_BSTR aPath, LONG64 *aSize)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::FileRemove(IN_BSTR aPath)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::FileRename(IN_BSTR aSource, IN_BSTR aDest, ComSafeArrayIn(PathRenameFlag_T, aFlags))
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::FileSetACL(IN_BSTR aPath, IN_BSTR aACL)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::ProcessCreate(IN_BSTR aCommand, ComSafeArrayIn(IN_BSTR, aArguments), ComSafeArrayIn(IN_BSTR, aEnvironment),
                                         ComSafeArrayIn(ProcessCreateFlag_T, aFlags), ULONG aTimeoutMS, IGuestProcess **aProcess)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    com::SafeArray<LONG> affinity;

    return ProcessCreateEx(aCommand, ComSafeArrayInArg(aArguments), ComSafeArrayInArg(aEnvironment),
                           ComSafeArrayInArg(aFlags), aTimeoutMS, ProcessPriority_Default, ComSafeArrayAsInParam(affinity), aProcess);
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::ProcessCreateEx(IN_BSTR aCommand, ComSafeArrayIn(IN_BSTR, aArguments), ComSafeArrayIn(IN_BSTR, aEnvironment),
                                           ComSafeArrayIn(ProcessCreateFlag_T, aFlags), ULONG aTimeoutMS,
                                           ProcessPriority_T aPriority, ComSafeArrayIn(LONG, aAffinity),
                                           IGuestProcess **aProcess)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    if (RT_UNLIKELY((aCommand) == NULL || *(aCommand) == '\0'))
        return setError(E_INVALIDARG, tr("No command to execute specified"));
    CheckComArgOutPointerValid(aProcess);

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    GuestProcessInfo procInfo;

    procInfo.mCommand = Utf8Str(aCommand);

    com::SafeArray<IN_BSTR> arguments(ComSafeArrayInArg(aArguments));
    procInfo.mArguments.reserve(arguments.size());
    for (size_t i = 0; i < arguments.size(); i++)
        procInfo.mArguments[i] = Utf8Str(Bstr(arguments[i]));

    int rc = VINF_SUCCESS;

    /* Create the process environment:
     * - Apply the session environment in a first step, and
     * - Apply environment variables specified by this call to
     *   have the chance of overwriting/deleting session entries.
     */
    procInfo.mEnvironment = mData.mEnvironment;
    com::SafeArray<IN_BSTR> environment(ComSafeArrayInArg(aEnvironment));
    for (size_t i = 0; i < environment.size() && RT_SUCCESS(rc); i++)
        rc = mData.mEnvironment.Set(Utf8Str(environment[i]));

    if (RT_SUCCESS(rc))
    {
        com::SafeArray<ProcessCreateFlag_T> flags(ComSafeArrayInArg(aFlags));
        for (size_t i = 0; i < flags.size(); i++)
            procInfo.mFlags |= flags[i];

        procInfo.mTimeoutMS = aTimeoutMS;

        com::SafeArray<LONG> affinity(ComSafeArrayInArg(aAffinity));
        procInfo.mAffinity.reserve(affinity.size());
        for (size_t i = 0; i < affinity.size(); i++)
            procInfo.mAffinity[i] = affinity[i]; /** @todo Really necessary? Later. */

        procInfo.mPriority = aPriority;

        rc = processCreateExInteral(procInfo, aProcess);
    }

    HRESULT hr = RT_SUCCESS(rc) ? S_OK : VBOX_E_IPRT_ERROR;
    LogFlowFuncLeaveRC(hr);
    return hr;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::ProcessGet(ULONG aPID, IGuestProcess **aProcess)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFunc(("aPID=%RU32\n", aPID));

    CheckComArgOutPointerValid(aProcess);
    if (aPID == 0)
        return setError(E_INVALIDARG, tr("No valid process ID (PID) specified"));

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);

    HRESULT hr = S_OK;

    ComObjPtr<GuestProcess> pProcess;
    int rc = processGetByPID(aPID, &pProcess);
    if (RT_FAILURE(rc))
        hr = setError(E_INVALIDARG, tr("No process with PID %RU32 found"), aPID);

    /* This will set (*aProcess) to NULL if pProgress is NULL. */
    HRESULT hr2 = pProcess.queryInterfaceTo(aProcess);
    if (SUCCEEDED(hr))
        hr = hr2;

    LogFlowThisFunc(("aProcess=%p, hr=%Rrc\n", *aProcess, hr));
    return hr;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::SetTimeout(ULONG aTimeoutMS)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    if (aTimeoutMS < 1000)
        return setError(E_INVALIDARG, tr("Invalid timeout value specified"));

    mData.mTimeout = aTimeoutMS;

    LogFlowThisFunc(("aTimeoutMS=%RU32\n", mData.mTimeout));
    return S_OK;
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::SymlinkCreate(IN_BSTR aSource, IN_BSTR aTarget, SymlinkType_T aType)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::SymlinkExists(IN_BSTR aSymlink, BOOL *aExists)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::SymlinkRead(IN_BSTR aSymlink, ComSafeArrayIn(SymlinkReadFlag_T, aFlags), BSTR *aTarget)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::SymlinkRemoveDirectory(IN_BSTR aPath)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}

STDMETHODIMP GuestSession::SymlinkRemoveFile(IN_BSTR aFile)
{
#ifndef VBOX_WITH_GUEST_CONTROL
    ReturnComNotImplemented();
#else
    LogFlowThisFuncEnter();

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    ReturnComNotImplemented();
#endif /* VBOX_WITH_GUEST_CONTROL */
}