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/* $Id: VBoxAutostartStart.cpp $ */
/** @file
* VBoxAutostart - VirtualBox Autostart service, start machines during system boot.
*/
/*
* Copyright (C) 2012-2023 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 <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#include <VBox/com/com.h>
#include <VBox/com/string.h>
#include <VBox/com/Guid.h>
#include <VBox/com/array.h>
#include <VBox/com/ErrorInfo.h>
#include <VBox/com/errorprint.h>
#include <iprt/errcore.h>
#include <iprt/log.h>
#include <iprt/message.h>
#include <iprt/stream.h>
#include <iprt/thread.h>
#include <algorithm>
#include <list>
#include "VBoxAutostart.h"
extern unsigned g_cVerbosity;
using namespace com;
/**
* VM list entry.
*/
typedef struct AUTOSTARTVM
{
/** ID of the VM to start. */
Bstr strId;
/** Startup delay of the VM. */
ULONG uStartupDelay;
} AUTOSTARTVM;
static DECLCALLBACK(bool) autostartVMCmp(const AUTOSTARTVM &vm1, const AUTOSTARTVM &vm2)
{
return vm1.uStartupDelay <= vm2.uStartupDelay;
}
DECLHIDDEN(int) autostartStartMain(PCFGAST pCfgAst)
{
int vrc = VINF_SUCCESS;
std::list<AUTOSTARTVM> listVM;
uint32_t uStartupDelay = 0;
autostartSvcLogVerbose(1, "Starting machines ...\n");
pCfgAst = autostartConfigAstGetByName(pCfgAst, "startup_delay");
if (pCfgAst)
{
if (pCfgAst->enmType == CFGASTNODETYPE_KEYVALUE)
{
vrc = RTStrToUInt32Full(pCfgAst->u.KeyValue.aszValue, 10, &uStartupDelay);
if (RT_FAILURE(vrc))
return autostartSvcLogErrorRc(vrc, "'startup_delay' must be an unsigned number");
}
}
if (uStartupDelay)
{
autostartSvcLogVerbose(1, "Delaying start for %RU32 seconds ...\n", uStartupDelay);
vrc = RTThreadSleep(uStartupDelay * 1000);
}
if (vrc == VERR_INTERRUPTED)
return VINF_SUCCESS;
/*
* Build a list of all VMs we need to autostart first, apply the overrides
* from the configuration and start the VMs afterwards.
*/
com::SafeIfaceArray<IMachine> machines;
HRESULT hrc = g_pVirtualBox->COMGETTER(Machines)(ComSafeArrayAsOutParam(machines));
if (SUCCEEDED(hrc))
{
/*
* Iterate through the collection
*/
for (size_t i = 0; i < machines.size(); ++i)
{
if (machines[i])
{
Bstr strName;
CHECK_ERROR_BREAK(machines[i], COMGETTER(Name)(strName.asOutParam()));
BOOL fAccessible;
CHECK_ERROR_BREAK(machines[i], COMGETTER(Accessible)(&fAccessible));
if (!fAccessible)
{
autostartSvcLogVerbose(1, "Machine '%ls' is not accessible, skipping\n", strName.raw());
continue;
}
AUTOSTARTVM autostartVM;
BOOL fAutostart;
CHECK_ERROR_BREAK(machines[i], COMGETTER(AutostartEnabled)(&fAutostart));
if (fAutostart)
{
CHECK_ERROR_BREAK(machines[i], COMGETTER(Id)(autostartVM.strId.asOutParam()));
CHECK_ERROR_BREAK(machines[i], COMGETTER(AutostartDelay)(&autostartVM.uStartupDelay));
listVM.push_back(autostartVM);
}
autostartSvcLogVerbose(1, "Machine '%ls': Autostart is %s (startup delay is %RU32 seconds)\n",
strName.raw(), fAutostart ? "enabled" : "disabled",
fAutostart ? autostartVM.uStartupDelay : 0);
}
}
/**
* @todo r=uwe I'm not reindenting this whole burnt offering
* to mistinterpreted Dijkstra's "single exit" commandment
* just to add this log, hence a bit of duplicate logic here.
*/
if (SUCCEEDED(hrc))
{
if (machines.size() == 0)
autostartSvcLogWarning("No virtual machines found.\n"
"This either could be a configuration problem (access rights), "
"or there are no VMs configured yet.");
else if (listVM.empty())
autostartSvcLogWarning("No virtual machines configured for autostart.\n"
"Please consult the manual about how to enable auto starting VMs.\n");
}
else
autostartSvcLogError("Enumerating virtual machines failed with %Rhrc\n", hrc);
if ( SUCCEEDED(hrc)
&& !listVM.empty())
{
ULONG uDelayCur = 0;
/* Sort by startup delay and apply base override. */
listVM.sort(autostartVMCmp);
std::list<AUTOSTARTVM>::iterator it;
for (it = listVM.begin(); it != listVM.end(); ++it)
{
ComPtr<IMachine> machine;
ComPtr<IProgress> progress;
CHECK_ERROR_BREAK(g_pVirtualBox, FindMachine((*it).strId.raw(), machine.asOutParam()));
Bstr strName;
CHECK_ERROR_BREAK(machine, COMGETTER(Name)(strName.asOutParam()));
if ((*it).uStartupDelay > uDelayCur)
{
autostartSvcLogVerbose(1, "Waiting for %ul seconds before starting machine '%s' ...\n",
(*it).uStartupDelay - uDelayCur, strName.raw());
RTThreadSleep(((*it).uStartupDelay - uDelayCur) * 1000);
uDelayCur = (*it).uStartupDelay;
}
CHECK_ERROR_BREAK(machine, LaunchVMProcess(g_pSession, Bstr("headless").raw(),
ComSafeArrayNullInParam(), progress.asOutParam()));
if (SUCCEEDED(hrc) && !progress.isNull())
{
autostartSvcLogVerbose(1, "Waiting for machine '%ls' to power on ...\n", strName.raw());
CHECK_ERROR(progress, WaitForCompletion(-1));
if (SUCCEEDED(hrc))
{
BOOL completed = true;
CHECK_ERROR(progress, COMGETTER(Completed)(&completed));
if (SUCCEEDED(hrc))
{
ASSERT(completed);
LONG iRc;
CHECK_ERROR(progress, COMGETTER(ResultCode)(&iRc));
if (SUCCEEDED(hrc))
{
if (FAILED(iRc))
{
ProgressErrorInfo info(progress);
com::GluePrintErrorInfo(info);
}
else
autostartSvcLogVerbose(1, "Machine '%ls' has been successfully started.\n", strName.raw());
}
}
}
}
SessionState_T enmSessionState;
CHECK_ERROR(g_pSession, COMGETTER(State)(&enmSessionState));
if (SUCCEEDED(hrc) && enmSessionState == SessionState_Locked)
g_pSession->UnlockMachine();
}
}
}
return vrc;
}
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