dialup.cpp

Trolltech公司发布的图形界面操作系统。可在qt-embedded-2.3.10平台上编译为嵌入式图形界面操作系统。

    mkdir("/etc/ppp/peers",0700);
    QFile options("/etc/ppp/peers/"+acid);
    if ( options.open(IO_WriteOnly) ) {
	QTextStream opt(&options);
	opt << cfg.readEntry("speed") << "\n";
	QString dial = dialString(cfg);
	//opt << "debug\n";
#ifdef QTOPIA_PHONE
	opt << "connect '" // No tr
	    << QPEApplication::qpeDir() << "/bin/qtopia-dial-internal'\n";
	opt << "disconnect '" // No tr
	    << QPEApplication::qpeDir() << "/bin/qtopia-stop-internal'\n";
#else
	opt << "connect '/usr/sbin/chat " // No tr
		"-s -v "
		"ABORT \"NO CARRIER\" " // No tr
		"ABORT \"NO DIALTONE\" " // No tr
		"ABORT \"BUSY\" " // No tr
	    << "\"\" ATZ OK " + dial + " CONNECT'\n";
#endif
	if ( cfg.readBoolEntry("crtscts") )
	    opt << "crtscts\n";
	else
	    opt << "nocrtscts\n";
	opt << "noipdefault\n";
	opt << "modem\n"; // No tr
	QString user = cfg.readEntry("username");
	if ( !user.isEmpty() )
	    opt << "user " << Global::stringQuote(user) << "\n"; // No tr
	int dialmode = cfg.readNumEntry("dialmode",0);
	if ( dialmode == 2 )
	    opt << "demand\n"; // No tr
	int idlet = cfg.readNumEntry("idletime",120);
	if ( dialmode > 0 && idlet )
	    opt << "idle " << idlet << "\n"; // No tr
	if ( cfg.readBoolEntry("usepeerdns",TRUE) )
	    opt << "usepeerdns\n";
	if ( cfg.readBoolEntry("defaultroute",TRUE) )
	    opt << "defaultroute\n";
	int cdel = cfg.readNumEntry("connectdelay",0);
	if ( cdel )
	    opt << "connect-delay " << cdel << "\n";
	if ( !acid.isEmpty() )
	    opt << "remotename " << acid << "\n";
	QString pw = cfg.readEntry("password");
	bool pwsetok = TRUE;
	if ( !pw.isEmpty() )
	    pwsetok = setPapSecret(user,acid,pw,"");
	else
	    pwsetok = setPapSecret(user,acid,QString::null,"");
	if ( !pwsetok ) {
	    QMessageBox::critical(parent,Dialup::tr("I/O Error"),
		Dialup::tr("<P>Cannot write to PPP password files."));
	    return FALSE;
	}
	return TRUE;
    } else {
	QMessageBox::critical(parent,Dialup::tr("I/O Error"),
	    Dialup::tr("<P>Cannot write to %1.").arg(options.name()));
	return FALSE;
    }
}

QString DialupImpl::dev( Config& cfg ) const
{
    QString d = cfg.readEntry("SerialDevice");
    if ( d.isEmpty() ) {
	QString ct = cardType(cfg);
	if ( !ct.isEmpty() ) {
	    FILE* f = fopen("/var/run/stab", "r");
	    if (!f) f = fopen("/var/state/pcmcia/stab", "r");
	    if (!f) f = fopen("/var/lib/pcmcia/stab", "r");
	    if ( f ) {
		char line[1024];
		char devtype[80];
		char devname[80];
		while ( fgets( line, 1024, f ) ) {
		    // 0       serial  serial_cs       0       ttyS0   4       64
		    if ( sscanf(line,"%*d %s %*s %*s %s", devtype, devname )==2 )
		    {
			if ( ct == devtype ) {
			    fclose(f);
			    return QString("/dev/")+devname;
			}
		    }
		}
		fclose(f);
	    }
	}
    }
    return d;
}

bool DialupImpl::create( Config& )
{
    // nothing special
    return TRUE;
}

bool DialupImpl::remove( Config&cfg )
{
    stop(cfg);
    cfg.setGroup("Info");
    QString peer = cfg.readEntry( "Id" );
    if ( !peer.isEmpty() ) {
	peer = "/etc/ppp/peers/" + peer;
	unlink( peer.latin1() );
    }
    return TRUE;
}


class PppMon : public QObject {
    Q_OBJECT

    enum { Initialize, Connect, Authenticate, Timing, Disappearing } state;
    int age;
    int start;
    bool demand;
    QString logfile;

public:
    PppMon(bool demanddialing) :
	demand(demanddialing)
    {
	age = 0;
	start = 0;
	state = Initialize;
	logfile= Global::tempDir()+ "qpe-pppd-log";
	progress(demand ? tr("Waiting for activity") : tr("Initializing modem"),1);
	startTimer(demand ? 8000 /* progress less interesting */ : 2000);
    }
    ~PppMon()
    {
    }

protected:
    void timerEvent(QTimerEvent*)
    {
	if ( state == Disappearing ) {
	    killTimers();
	    delete this;
	    return;
	}
	QFile logf(logfile);
	if ( logf.open(IO_ReadOnly) ) {
	    QString log = logf.readAll();
	    log.replace(QRegExp("\r"),"");
	    switch (state) {
	      case Initialize:
		if ( log.find(QRegExp("\nFailed"))>=start ) { // No tr
		    progress(tr("Connection failed"),0);
		    state = Disappearing;
		} else if ( demand ) {
		    int ns;
		    if ( (ns=log.find(QRegExp("Starting link\n")))>=start ) { // No tr
			progress(tr("Connecting"),5);
			state = Connect;
			start = ns+1;
		    }
		} else {
		    int ns;
		    if ( (ns=log.find(QRegExp("\nOK\n -- got it")))>=start ) { // No tr
			progress(tr("Connecting"),1);
			state = Connect;
			start = ns+1;
		    }
		}
		break;
	      case Connect:
		if ( log.find(QRegExp("\nCONNECT[^\n]*\n -- got it"))>=start ) { // No tr
		    progress(tr("Authenticating"),1); // No tr
		    state = Authenticate;
		} else if ( log.find(QRegExp("\nNO DIALTONE"))>=start ) {
		    progress(tr("No dialtone"),0);
		    state = Disappearing;
		} else if ( log.find(QRegExp("\nNO CARRIER"))>=start ) {
		    progress(tr("No carrier"),0);
		    state = Disappearing;
		} else if ( log.find(QRegExp("\nBUSY"))>=start ) {
		    progress(tr("Number is busy"),0);
		    state = Disappearing;
		} else if ( log.find(QRegExp("\nalarm"))>=start ) { // No tr
		    progress(tr("Timed out"),0);
		    state = Disappearing;
		} else if ( log.find(QRegExp("\nFailed"))>=start ) { // No tr
		    progress(tr("Connection failed"),0);
		    state = Disappearing;
		}
		break;
	      case Authenticate:
		if ( log.find(QRegExp("\nPAP authentication failed"))>=start ) { // No tr
		    progress(tr("Authentication Failed"),0);
		    state = Disappearing;
		} else if ( log.find(QRegExp("\nCHAP authentication failed"))>=start ) { // No tr
		    progress(tr("Authentication Failed"),0);
		    state = Disappearing;
		} else if ( log.find(QRegExp("\nipcp: up"))>=start ) { // No tr
		    progress(tr("Connected"),5);
		    if ( demand )
			state = Timing;
		    else
			state = Disappearing;
		}
		break;
	      case Timing:
		if ( log.find(QRegExp("\nConnection terminated"))>=start ) { // No tr
		    progress(tr("Waiting for activity"),1);
		    state = Initialize;
		}
		break;
	      case Disappearing:
		break;
	    }
	    if ( !demand && age++ > 120 ) // fail-safe self destruction
		state = Disappearing;
	} else
	    state = Disappearing;
    }

    void progress(const QString& p, int flag)
    {
#ifndef QT_NO_COP
	QCopEnvelope e("QPE/Network", "progress(QString,int)");
	if ( demand ) flag |= 2;
	e << p << flag;
#endif
    }
};

bool DialupImpl::start( Config& cfg )
{
    return start(cfg,QString::null);
}

bool DialupImpl::start( Config& cfg, const QString& password )
{
    // start pppd
    QString cmd = cfg.readEntry("script");
    QStringList args;
    if ( cmd.isEmpty() ) {
	if ( !cfg.readBoolEntry("usepeerdns",TRUE) ) {
	    bool any=FALSE;
	    for (int i=1; i<5 && !any; i++)
		any = !cfg.readEntry("dns"+QString::number(i)).isEmpty();
	    if ( any ) {
		QFile rc("/etc/ppp/resolv.conf");
		if ( rc.open(IO_WriteOnly) ) {
		    QTextStream stream(&rc);
		    for (int i=1; i<5; i++) {
			QString dns = cfg.readEntry("dns"+QString::number(i));
			if ( !dns.isEmpty() )
			    stream << "nameserver " << dns << "\n";
		    }
		} else {
		    qWarning("Cannot write to /etc/ppp/resolv.conf file.");
		}
	    }
	}
	cfg.setGroup("Info");
	args.append("/usr/sbin/pppd");	    // No tr
#ifdef QTOPIA_PHONE
	args.append("nodetach");	    // No tr
	args.append("notty");		    // No tr
#else
	QString d = dev(cfg);
	if ( d.isEmpty() ) {
	    qWarning("No device for card type %s",cardType(cfg).latin1());
	    return FALSE;
	}
	args.append("updetach");	    // No tr
	args.append(d);
#endif
	args.append("debug");		    // No tr
	args.append("call");		    // No tr
	args.append(cfg.readEntry("Id"));   // No tr
    } else {
	args = QStringList::split(" ", cmd);
#ifndef QTOPIA_PHONE
	args.append(dev(cfg));
#endif
    }
    if ( !password.isNull() ) {
	args.append("password");	    // No tr
	args.append(password);
    }
    args.append("logfile");		    // No tr
    args.append(logfile);
    QFile::remove(logfile);

#ifdef QTOPIA_PHONE

    // Construct the full dial control string.
    QString dial = dialString(cfg);

    // Split the dial control string into setup commands and phone number.
    QStringList init = QStringList::split(" ", dial);
    QStringList::Iterator iter;
    QString number;
    for ( iter = init.begin(); iter != init.end(); ) {
	if ( *iter == "OK" ) {
	    // The phone library will take care of looking for "OK".
	    iter = init.remove(iter);
	} else if ( (*iter).startsWith("ATD") ) {
	    // The dial command, starting with ATD, ATDT, or ATDP.
	    number = (*iter).mid(3);
	    if ( number.startsWith("T") || number.startsWith("P") ) {
		number = number.mid(1);
	    }
	    iter = init.remove(iter);
	} else {
	    ++iter;
	}
    }

    // Create a data call.
    PhoneLine line;
    bool demand = cfg.readNumEntry("dialmode",0) == 2;
    line.startData( number, init, args, demand);

#else
    // Quote the command-line before passing it to "system".
    cmd = args[0];
    for ( uint posn = 1; posn < args.count(); ++posn ) {
	cmd += " " + Global::shellQuote(args[posn]);
    }
    cmd += " &";
    system("cardctl resume");
    system(cmd.latin1());
#endif

    cfg.setGroup("Properties");
    int dialmode = cfg.readNumEntry("dialmode",0);
    (void)new PppMon(dialmode==2);
    return TRUE;
}

bool DialupImpl::stop( Config& cfg )
{
#ifdef QTOPIA_PHONE
    Q_CONST_UNUSED(cfg);
    PhoneLine line;
    line.stopData();
    return TRUE;
#else
    // kill pppd
    QString d = device(cfg);
    if ( !QFile::exists("/var/run/"+d+".pid") )
	d += "0";
    QFile pid("/var/run/"+d+".pid");
    if ( pid.open(IO_ReadOnly) ) {
	QString s(pid.readAll());
	int p = s.toInt();
	if ( p ) {
	    kill(p,SIGTERM); // SIGHUP not enough for demand dialing pppd
	    system("cardctl suspend");
	    return TRUE;
	}
    }
    return FALSE;
#endif
}

bool DialupImpl::isAvailable( Config& cfg ) const
{
#ifdef QTOPIA_PHONE
    Q_CONST_UNUSED(cfg);
    return TRUE;
#else
    QString d = dev(cfg);
    if ( d.isEmpty() )
	return FALSE;
    return QFile::exists(d);
#endif
}

bool DialupImpl::needPassword( Config& cfg ) const
{
    return cfg.readEntry("password").isEmpty();
}

bool DialupImpl::setProperties( Config& cfg, const NetworkInterfaceProperties& settings )
{
    // XXX relationship between these proxies and WWW proxies???
    cfg.writeEntry("wapProxyAddress", settings["proxyAddress"].toString());
    cfg.writeEntry("wapProxyAddressType", settings["proxyAddressType"].toString());
    cfg.writeEntry("wapProxyLoginType", settings["proxyLoginType"].toString());
    cfg.writeEntry("wapProxyAuthName", settings["proxyAuthName"].toString());
    cfg.writeEntry("wapProxyAuthPassword", settings["proxyAuthPassword"].toString());
    cfg.writeEntry("wapProxyPort", settings["proxyPort"].toString());
    cfg.writeEntry("wapProxyService", settings["proxyService"].toString());
    cfg.writeEntry("wapDefaultHomePage", settings["homePage"].toString());
    cfg.writeEntry("mmsURL", settings["mmsUrl"].toString());

    QString acid = cfg.readEntry("Id");

    // Remove old password
    QString prev_user = cfg.readEntry("username");
    QString user = settings["authName"].toString();
    if ( prev_user != user ) {
	cfg.writeEntry("username",user);
	setPapSecret(prev_user,acid,QString::null,"");
    }

    cfg.writeEntry("apn", settings["accessPoint"].toString());
    cfg.writeEntry("password", settings["authPassword"].toString());

    return writeSystemFiles(0,cfg);
}

#include "dialup.moc"