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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2011-2014 ZeroTier Networks LLC
*
* 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, either version 3 of the License, or
* (at your option) any later version.
*
* 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 <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#pragma region Includes
#include <WinSock2.h>
#include <Windows.h>
#include <stdio.h>
#include <stdlib.h>
#include "ZeroTierOneService.h"
#include "../../node/Defaults.hpp"
#include "../../node/Utils.hpp"
#pragma endregion
ZeroTierOneService::ZeroTierOneService() :
CServiceBase(ZT_SERVICE_NAME,TRUE,TRUE,FALSE),
_node((ZeroTier::Node *)0)
{
}
ZeroTierOneService::~ZeroTierOneService(void)
{
}
void ZeroTierOneService::threadMain()
throw()
{
restart_node:
try {
{
// start or restart
ZeroTier::Mutex::Lock _l(_lock);
delete _node;
_node = new ZeroTier::Node(ZeroTier::ZT_DEFAULTS.defaultHomePath.c_str(),0,0);
}
switch(_node->run()) {
case ZeroTier::Node::NODE_RESTART_FOR_UPGRADE: {
// Shut down node
ZeroTier::Node *n;
{
ZeroTier::Mutex::Lock _l(_lock);
n = _node;
_node = (ZeroTier::Node *)0;
}
std::string msiPath;
const char *msiPathTmp = n->reasonForTermination();
if (msiPathTmp)
msiPath = msiPathTmp;
delete n;
// Write a batch file to ensure the service is stopped
if ((!msiPath.length())||(!ZeroTier::Utils::fileExists(msiPath.c_str()))) {
WriteEventLogEntry("auto-update failed: no msi path provided by Node",EVENTLOG_ERROR_TYPE);
Sleep(5000);
goto restart_node;
}
std::string bat(ZeroTier::ZT_DEFAULTS.defaultHomePath + "\\InstallAndRestartService.bat");
FILE *batf = fopen(bat.c_str(),"wb");
if (!batf) {
WriteEventLogEntry("auto-update failed: unable to create InstallAndRestartService.bat",EVENTLOG_ERROR_TYPE);
Sleep(5000);
goto restart_node;
}
fprintf(batf,"TIMEOUT.EXE /T 1 /NOBREAK\r\n");
fprintf(batf,"NET.EXE STOP \"ZeroTier One\"\r\n");
fprintf(batf,"MSIEXEC.EXE /i \"%s\" /qn\r\n",msiPath.c_str());
fprintf(batf,"NET.EXE START \"ZeroTier One\"\r\n");
fclose(batf);
// Execute updater, which will update and restart service
STARTUPINFOA si;
PROCESS_INFORMATION pi;
memset(&si,0,sizeof(si));
memset(&pi,0,sizeof(pi));
if (!CreateProcessA(NULL,const_cast <LPSTR>((std::string("CMD.EXE /c \"") + bat + "\"").c_str()),NULL,NULL,FALSE,CREATE_NO_WINDOW|CREATE_NEW_PROCESS_GROUP,NULL,NULL,&si,&pi)) {
WriteEventLogEntry("auto-update failed: unable to execute InstallAndRestartService.bat",EVENTLOG_ERROR_TYPE);
Sleep(5000);
goto restart_node;
}
// Terminate service to allow updater to update
Stop();
} return;
case ZeroTier::Node::NODE_UNRECOVERABLE_ERROR: {
std::string err("ZeroTier node encountered an unrecoverable error: ");
const char *r = _node->reasonForTermination();
if (r)
err.append(r);
else err.append("(unknown error)");
err.append(" (restarting in 5 seconds)");
WriteEventLogEntry(const_cast <PSTR>(err.c_str()),EVENTLOG_ERROR_TYPE);
Sleep(5000);
goto restart_node;
} break;
default: // includes normal termination, which will terminate thread
break;
}
} catch ( ... ) {
// sanity check, shouldn't happen since Node::run() should catch all its own errors
// could also happen if we're out of memory though!
WriteEventLogEntry("unexpected exception (out of memory?) (trying again in 5 seconds)",EVENTLOG_ERROR_TYPE);
Sleep(5000);
goto restart_node;
}
_lock.lock();
delete _node;
_node = (ZeroTier::Node *)0;
_lock.unlock();
}
void ZeroTierOneService::OnStart(DWORD dwArgc, LPSTR *lpszArgv)
{
if (_node)
return; // sanity check
try {
_thread = ZeroTier::Thread::start(this);
} catch ( ... ) {
throw (DWORD)ERROR_EXCEPTION_IN_SERVICE;
}
}
void ZeroTierOneService::OnStop()
{
_lock.lock();
ZeroTier::Node *n = _node;
_lock.unlock();
if (n) {
n->terminate(ZeroTier::Node::NODE_NORMAL_TERMINATION,"Windows service stopped");
ZeroTier::Thread::join(_thread);
}
}
void ZeroTierOneService::OnShutdown()
{
// stop thread on system shutdown (if it hasn't happened already)
OnStop();
}
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