skeleton and the start of libopie2, please read README, ROADMAP and STATUS and comment...

1 files changed, 774 insertions, 0 deletions

diff --git a/libopie2/opienet/onetwork.cpp b/libopie2/opienet/onetwork.cpp
new file mode 100644
index 0000000..1d3b9fe
--- a/dev/null
+++ b/libopie2/opienet/onetwork.cpp
@@ -0,0 +1,774 @@
+/*
+                             This file is part of the Opie Project
+                             Copyright (C) 2003 by the Wellenreiter team:
+                             Martin J. Muench <mjm@remote-exploit.org>
+                             Max Moser <mmo@remote-exploit.org
+                             Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
+              =.
+            .=l.
+           .>+-=
+ _;:,     .>    :=|.         This program is free software; you can
+.> <`_,   >  .   <=          redistribute it and/or  modify it under
+:`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
+.="- .-=="i,     .._         License as published by the Free Software
+ - .   .-<_>     .<>         Foundation; either version 2 of the License,
+     ._= =}       :          or (at your option) any later version.
+    .%`+i>       _;_.
+    .i_,=:_.      -<s.       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
+..}^=.=       =       ;      Library General Public License for more
+++=   -.     .`     .:       details.
+ :     =  ...= . :.=-
+ -.   .:....=;==+<;          You should have received a copy of the GNU
+  -_. . .   )=.  =           Library General Public License along with
+    --        :-=`           this library; see the file COPYING.LIB.
+                             If not, write to the Free Software Foundation,
+                             Inc., 59 Temple Place - Suite 330,
+                             Boston, MA 02111-1307, USA.
+
+*/
+
+/* OPIE */
+
+#include <opie2/onetwork.h>
+
+/* QT */
+
+#include <qfile.h>
+#include <qtextstream.h>
+
+/* UNIX */
+
+#include <arpa/inet.h>
+#include <cerrno>
+#include <cstring>
+#include <cstdlib>
+#include <math.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <linux/wireless.h>
+
+using namespace std;
+
+/*======================================================================================
+ * ONetwork
+ *======================================================================================*/
+
+ONetwork* ONetwork::_instance = 0;
+
+ONetwork::ONetwork()
+{
+    qDebug( "ONetwork::ONetwork()" );
+    synchronize();
+}
+
+void ONetwork::synchronize()
+{
+    // gather available interfaces by inspecting /proc/net/dev
+    // we could use SIOCGIFCONF here, but we aren't interested in virtual (e.g. eth0:0) devices
+
+    _interfaces.clear();
+    QString str;
+    QFile f( "/proc/net/dev" );
+    bool hasFile = f.open( IO_ReadOnly );
+    if ( !hasFile )
+    {
+        qDebug( "ONetwork: /proc/net/dev not existing. No network devices available" );
+        return;
+    }
+    QTextStream s( &f );
+    s.readLine();
+    s.readLine();
+    while ( !s.atEnd() )
+    {
+        s >> str;
+        str.truncate( str.find( ':' ) );
+        qDebug( "ONetwork: found interface '%s'", (const char*) str );
+        ONetworkInterface* iface;
+        if ( isWirelessInterface( str ) )
+        {
+            iface = new OWirelessNetworkInterface( str );
+            qDebug( "ONetwork: interface '%s' has Wireless Extensions", (const char*) str );
+        }
+        else
+        {
+            iface = new ONetworkInterface( str );
+        }
+        _interfaces.insert( str, iface );
+        s.readLine();
+    }
+}
+
+
+ONetworkInterface* ONetwork::interface( QString iface ) const
+{
+    return _interfaces[iface];
+}
+
+
+ONetwork* ONetwork::instance()
+{
+    if ( !_instance ) _instance = new ONetwork();
+    return _instance;
+}
+
+
+ONetwork::InterfaceIterator ONetwork::iterator() const
+{
+    return ONetwork::InterfaceIterator( _interfaces );
+}
+
+
+bool ONetwork::isWirelessInterface( const char* name ) const
+{
+    int sfd = socket( AF_INET, SOCK_DGRAM, 0 );
+    iwreqstruct iwr;
+    memset( &iwr, 0, sizeof( iwreqstruct ) );
+    strcpy( (char*) &iwr.ifr_name, name );
+    int result = ::ioctl( sfd, SIOCGIWNAME, &iwr );
+    if ( result == -1 )
+        qDebug( "ONetwork::ioctl(): SIOCGIWNAME failed: %d (%s)", result, strerror( errno ) );
+    else
+        qDebug( "ONetwork::ioctl(): SIOCGIWNAME ok." );
+    return ( result != -1 );
+}
+
+/*======================================================================================
+ * ONetworkInterface
+ *======================================================================================*/
+
+ONetworkInterface::ONetworkInterface( const QString& name )
+                   :_name( name ), _sfd( socket( AF_INET, SOCK_DGRAM, 0 ) ), _mon( 0 )
+{
+    qDebug( "ONetworkInterface::ONetworkInterface()" );
+    init();
+}
+
+
+ifreqstruct& ONetworkInterface::ifr() const
+{
+    return _ifr;
+}
+
+
+void ONetworkInterface::init()
+{
+    qDebug( "ONetworkInterface::init()" );
+
+    memset( &_ifr, 0, sizeof( struct ifreq ) );
+
+    if ( _sfd == -1 )
+    {
+        qDebug( "ONetworkInterface::init(): Warning - can't get socket for device '%s'", (const char*) _name );
+        return;
+    }
+}
+
+
+bool ONetworkInterface::ioctl( int call, ifreqstruct& ifreq ) const
+{
+    int result = ::ioctl( _sfd, call, &ifreq );
+    if ( result == -1 )
+        qDebug( "ONetworkInterface::ioctl(): Call %d - Status: Failed: %d (%s)", call, result, strerror( errno ) );
+    else
+        qDebug( "ONetworkInterface::ioctl(): Call %d - Status: Ok.", call );
+    return ( result != -1 );
+}
+
+
+bool ONetworkInterface::ioctl( int call ) const
+{
+    strcpy( _ifr.ifr_name, (const char*) _name );
+    return ioctl( call, _ifr );
+}
+
+
+bool ONetworkInterface::isLoopback() const
+{
+    ioctl( SIOCGIFFLAGS );
+    return _ifr.ifr_flags & IFF_LOOPBACK;
+}
+
+
+bool ONetworkInterface::setUp( bool b )
+{
+    ioctl( SIOCGIFFLAGS );
+    if ( b ) _ifr.ifr_flags |= IFF_UP;
+    else   _ifr.ifr_flags &= (~IFF_UP);
+    return ioctl( SIOCSIFFLAGS );
+}
+
+
+bool ONetworkInterface::isUp() const
+{
+    ioctl( SIOCGIFFLAGS );
+    return _ifr.ifr_flags & IFF_UP;
+}
+
+
+QString ONetworkInterface::ipV4Address() const
+{
+    if ( ioctl( SIOCGIFADDR ) )
+    {
+        struct sockaddr_in *sa = (struct sockaddr_in *) &_ifr.ifr_addr;
+        //FIXME: Use QHostAddress here
+        return QString( inet_ntoa( sa->sin_addr ) );
+    }
+    else
+        return "<unknown>";
+}
+
+
+OMacAddress ONetworkInterface::macAddress() const
+{
+    if ( ioctl( SIOCGIFHWADDR ) )
+    {
+        return OMacAddress( _ifr );
+    }
+    else
+    {
+        return OMacAddress::unknown;
+    }
+}
+
+
+void ONetworkInterface::setMonitoring( OMonitoringInterface* m )
+{
+    _mon = m;
+    qDebug( "ONetwork::setMonitoring(): Installed monitoring interface '%s'", (const char*) m->name() );
+}
+
+
+OMonitoringInterface* ONetworkInterface::monitoring() const
+{
+    return _mon;
+}
+
+
+const QString& ONetworkInterface::name() const
+{
+    return _name;
+}
+
+
+ONetworkInterface::~ONetworkInterface()
+{
+    qDebug( "ONetworkInterface::~ONetworkInterface()" );
+    if ( _sfd != -1 ) ::close( _sfd );
+}
+
+
+bool ONetworkInterface::setPromiscuousMode( bool b )
+{
+    ioctl( SIOCGIFFLAGS );
+    if ( b ) _ifr.ifr_flags |= IFF_PROMISC;
+    else   _ifr.ifr_flags &= (~IFF_PROMISC);
+    return ioctl( SIOCSIFFLAGS );
+}
+
+
+bool ONetworkInterface::promiscuousMode() const
+{
+    ioctl( SIOCGIFFLAGS );
+    return _ifr.ifr_flags & IFF_PROMISC;
+}
+
+
+bool ONetworkInterface::isWireless() const
+{
+    return ioctl( SIOCGIWNAME );
+}
+
+
+/*======================================================================================
+ * OChannelHopper
+ *======================================================================================*/
+
+OChannelHopper::OChannelHopper( OWirelessNetworkInterface* iface )
+               :QObject( 0, "Mickey's funky hopper" ),
+               _iface( iface ), _interval( 0 ), _channel( 0 ), _tid( 0 )
+{
+}
+
+
+OChannelHopper::~OChannelHopper()
+{
+}
+
+
+void OChannelHopper::timerEvent( QTimerEvent* )
+{
+    //FIXME: Get available channels from OWirelessNetworkInterface
+    if ( --_channel < 0 ) _channel = 13;
+    _iface->setChannel( _channel );
+    qDebug( "OChannelHopper::timerEvent(): set channel %d on interface '%s'",
+            _channel, (const char*) _iface->name() );
+}
+
+
+void OChannelHopper::setInterval( int interval )
+{
+    if ( interval == _interval )
+        return;
+
+    if ( _interval )
+        killTimer( _tid );
+
+    _interval = interval;
+
+    if ( _interval )
+    {
+        _tid = startTimer( interval );
+    }
+}
+
+
+int OChannelHopper::interval() const
+{
+    return _interval;
+}
+
+
+/*======================================================================================
+ * OWirelessNetworkInterface
+ *======================================================================================*/
+
+OWirelessNetworkInterface::OWirelessNetworkInterface( const QString& name )
+                           :ONetworkInterface( name ), _hopper( this )
+{
+    qDebug( "OWirelessNetworkInterface::OWirelessNetworkInterface()" );
+    init();
+}
+
+
+OWirelessNetworkInterface::~OWirelessNetworkInterface()
+{
+}
+
+
+iwreqstruct& OWirelessNetworkInterface::iwr() const
+{
+    return _iwr;
+}
+
+
+void OWirelessNetworkInterface::init()
+{
+    qDebug( "OWirelessNetworkInterface::init()" );
+
+    memset( &_iwr, 0, sizeof( struct iwreq ) );
+
+    // IEEE802.11(b) radio frequency channels
+    //FIXME: get these directly from the interface
+    //FIXME: check if these channels are off-by-one
+
+    iwrangestruct range;
+    _iwr.u.data.pointer = (char*) &range;
+    _iwr.u.data.length = sizeof( iwrangestruct );
+    if ( !wioctl( SIOCGIWRANGE ) )
+    {
+        qDebug( "OWirelessNetworkInterface::init(): SIOCGIWRANGE failed (%s)", strerror( errno ) );
+        return;
+    }
+
+    //TODO: Find out what the difference between num_channel and
+    //      num_frequency is about.
+
+    for ( int i = 0; i < range.num_frequency; ++i )
+    {
+        int freq = (int) ( double( range.freq[i].m ) * pow( 10, range.freq[i].e ) / 1000000.0 );
+        _channels.insert( freq, i );
+    }
+}
+
+
+QString OWirelessNetworkInterface::associatedAP() const
+{
+    //FIXME: use OMacAddress
+    QString mac;
+
+    if ( ioctl( SIOCGIWAP ) )
+    {
+        mac.sprintf( "%.2X:%.2X:%.2X:%.2X:%.2X:%.2X",
+        _ifr.ifr_hwaddr.sa_data[0]&0xff,
+        _ifr.ifr_hwaddr.sa_data[1]&0xff,
+        _ifr.ifr_hwaddr.sa_data[2]&0xff,
+        _ifr.ifr_hwaddr.sa_data[3]&0xff,
+        _ifr.ifr_hwaddr.sa_data[4]&0xff,
+        _ifr.ifr_hwaddr.sa_data[5]&0xff );
+    }
+    else
+    {
+        mac = "<Unknown>";
+    }
+    return mac;
+}
+
+
+int OWirelessNetworkInterface::channel() const
+{
+    if ( !wioctl( SIOCGIWFREQ ) )
+    {
+        return -1;
+    }
+    else
+    {
+        //FIXME: This is off-by-one !? Why?
+        return _channels[ static_cast<int>(double( _iwr.u.freq.m ) * pow( 10, _iwr.u.freq.e ) / 1000000) ];
+    }
+}
+
+
+void OWirelessNetworkInterface::setChannel( int c ) const
+{
+    if ( !_mon )
+    {
+        memset( &_iwr, 0, sizeof( iwreqstruct ) );
+        _iwr.u.freq.m = c;
+        _iwr.u.freq.e = 0;
+        wioctl( SIOCSIWFREQ );
+    }
+    else
+    {
+        _mon->setChannel( c );
+    }
+}
+
+
+double OWirelessNetworkInterface::frequency() const
+{
+    if ( !wioctl( SIOCGIWFREQ ) )
+    {
+        return -1.0;
+    }
+    else
+    {
+        return double( _iwr.u.freq.m ) * pow( 10, _iwr.u.freq.e ) / 1000000000.0;
+    }
+}
+
+
+int OWirelessNetworkInterface::channels() const
+{
+    return _channels.count();
+}
+
+
+void OWirelessNetworkInterface::setChannelHopping( int interval )
+{
+    _hopper.setInterval( interval );
+}
+
+
+int OWirelessNetworkInterface::channelHopping() const
+{
+    return _hopper.interval();
+}
+
+
+void OWirelessNetworkInterface::setMonitorMode( bool b )
+{
+    if ( _mon )
+        _mon->setEnabled( b );
+    else
+        qDebug( "ONetwork(): can't switch monitor mode without installed monitoring interface" );
+}
+
+bool OWirelessNetworkInterface::monitorMode() const
+{
+    return _mon ? _mon->enabled() : false;
+}
+
+
+QString OWirelessNetworkInterface::nickName() const
+{
+    char str[IW_ESSID_MAX_SIZE];
+    _iwr.u.data.pointer = &str[0];
+    _iwr.u.data.length = IW_ESSID_MAX_SIZE;
+    if ( !wioctl( SIOCGIWNICKN ) )
+    {
+        return "<unknown>";
+    }
+    else
+    {
+        str[_iwr.u.data.length] = 0x0; // some drivers (e.g. wlan-ng) don't zero-terminate the string
+        return str;
+    }
+}
+
+
+QString OWirelessNetworkInterface::SSID() const
+{
+    char str[IW_ESSID_MAX_SIZE];
+    _iwr.u.essid.pointer = &str[0];
+    _iwr.u.essid.length = IW_ESSID_MAX_SIZE;
+    if ( !wioctl( SIOCGIWESSID ) )
+    {
+        return "<unknown>";
+    }
+    else
+    {
+        return str;
+    }
+}
+
+
+void OWirelessNetworkInterface::setSSID( const QString& ssid )
+{
+    _iwr.u.essid.pointer = const_cast<char*>( (const char*) ssid );
+    _iwr.u.essid.length = ssid.length();
+    wioctl( SIOCSIWESSID );
+}
+
+
+bool OWirelessNetworkInterface::wioctl( int call, iwreqstruct& iwreq ) const
+{
+    int result = ::ioctl( _sfd, call, &iwreq );
+    if ( result == -1 )
+        qDebug( "ONetworkInterface::wioctl(): Call %d - Status: Failed: %d (%s)", call, result, strerror( errno ) );
+    else
+        qDebug( "ONetworkInterface::wioctl(): Call %d - Status: Ok.", call );
+    return ( result != -1 );
+}
+
+
+bool OWirelessNetworkInterface::wioctl( int call ) const
+{
+    strcpy( _iwr.ifr_name, (const char*) _name );
+    return wioctl( call, _iwr );
+}
+
+
+/*======================================================================================
+ * OMonitoringInterface
+ *======================================================================================*/
+
+OMonitoringInterface::OMonitoringInterface( ONetworkInterface* iface )
+                      :_enabled( false ), _if( static_cast<OWirelessNetworkInterface*>( iface ) )
+{
+}
+
+
+OMonitoringInterface::~OMonitoringInterface()
+{
+}
+
+
+void OMonitoringInterface::setChannel( int c )
+{
+    // use standard WE channel switching protocol
+    memset( &_if->_iwr, 0, sizeof( iwreqstruct ) );
+    _if->_iwr.u.freq.m = c;
+    _if->_iwr.u.freq.e = 0;
+    _if->wioctl( SIOCSIWFREQ );
+}
+
+
+bool OMonitoringInterface::enabled() const
+{
+    return _enabled;
+}
+
+void OMonitoringInterface::setEnabled( bool b )
+{
+    // open a packet capturer here or leave this to
+    // the client code?
+
+    /*
+
+    if ( b )
+    {
+        OPacketCapturer* opcap = new OPacketCapturer();
+        opcap->open( _if->name() );
+    }
+    */
+
+    _enabled = b;
+
+}
+
+/*======================================================================================
+ * OCiscoMonitoringInterface
+ *======================================================================================*/
+
+OCiscoMonitoringInterface::OCiscoMonitoringInterface( ONetworkInterface* iface )
+                           :OMonitoringInterface( iface )
+{
+    iface->setMonitoring( this );
+}
+
+
+OCiscoMonitoringInterface::~OCiscoMonitoringInterface()
+{
+}
+
+
+void OCiscoMonitoringInterface::setEnabled( bool b )
+{
+    QString fname;
+    fname.sprintf( "/proc/driver/aironet/%s", (const char*) _if->name() );
+    QFile f( fname );
+    if ( !f.exists() ) return;
+
+    if ( f.open( IO_WriteOnly ) )
+    {
+        QTextStream s( &f );
+        s << "Mode: r";
+        s << "Mode: y";
+        s << "XmitPower: 1";
+
+        OMonitoringInterface::setEnabled( b );
+
+    }
+
+    // flushing and closing will be done automatically when f goes out of scope
+}
+
+
+QString OCiscoMonitoringInterface::name() const
+{
+    return "cisco";
+}
+
+
+void OCiscoMonitoringInterface::setChannel( int )
+{
+    // cisco devices automatically switch channels when in monitor mode
+}
+
+
+/*======================================================================================
+ * OWlanNGMonitoringInterface
+ *======================================================================================*/
+
+
+OWlanNGMonitoringInterface::OWlanNGMonitoringInterface( ONetworkInterface* iface )
+                           :OMonitoringInterface( iface )
+{
+    iface->setMonitoring( this );
+}
+
+
+OWlanNGMonitoringInterface::~OWlanNGMonitoringInterface()
+{
+}
+
+
+void OWlanNGMonitoringInterface::setEnabled( bool b )
+{
+    //FIXME: do nothing if its already in the same mode
+
+    QString enable = b ? "true" : "false";
+    QString cmd;
+    cmd.sprintf( "$(which wlanctl-ng) %s lnxreq_wlansniff channel=%d enable=%s", (const char*) _if->name(), 1, (const char*) enable );
+    system( cmd );
+
+    OMonitoringInterface::setEnabled( b );
+}
+
+
+QString OWlanNGMonitoringInterface::name() const
+{
+    return "wlan-ng";
+}
+
+
+void OWlanNGMonitoringInterface::setChannel( int )
+{
+    // wlan-ng devices automatically switch channels when in monitor mode
+}
+
+
+/*======================================================================================
+ * OHostAPMonitoringInterface
+ *======================================================================================*/
+
+OHostAPMonitoringInterface::OHostAPMonitoringInterface( ONetworkInterface* iface )
+                           :OMonitoringInterface( iface )
+{
+    iface->setMonitoring( this );
+}
+
+OHostAPMonitoringInterface::~OHostAPMonitoringInterface()
+{
+}
+
+void OHostAPMonitoringInterface::setEnabled( bool b )
+{
+    // IW_MODE_MONITOR was introduced in Wireless Extensions Version 15
+    // Wireless Extensions < Version 15 need iwpriv commandos for monitoring
+
+    #if WIRELESS_EXT > 14
+    _if->_iwr.u.mode = IW_MODE_MONITOR;
+    _if->wioctl( SIOCSIWMODE );
+    #else
+    int* args = (int*) &_if._iwr.u.name;
+    args[0] = 2;
+    args[1] = 0;
+    _if->wioctl( SIOCDEVPRIVATE );
+    #endif
+
+    OMonitoringInterface::setEnabled( b );
+}
+
+
+QString OHostAPMonitoringInterface::name() const
+{
+    return "hostap";
+}
+
+
+/*======================================================================================
+ * OOrinocoNetworkInterface
+ *======================================================================================*/
+
+OOrinocoMonitoringInterface::OOrinocoMonitoringInterface( ONetworkInterface* iface )
+                           :OMonitoringInterface( iface )
+{
+    iface->setMonitoring( this );
+}
+
+
+OOrinocoMonitoringInterface::~OOrinocoMonitoringInterface()
+{
+}
+
+
+void OOrinocoMonitoringInterface::setChannel( int c )
+{
+    // call iwpriv <device> monitor 2 <channel>
+    int* args = (int*) &_if->_iwr.u.name;
+    args[0] = 2;
+    args[1] = c;
+    _if->wioctl( SIOCIWFIRSTPRIV + 0x8 );
+}
+
+
+void OOrinocoMonitoringInterface::setEnabled( bool b )
+{
+    if ( b )
+    {
+        setChannel( 1 );
+    }
+    else
+    {
+        // call iwpriv <device> monitor 0 0
+        int* args = (int*) &_if->_iwr.u.name;
+        args[0] = 0;
+        args[1] = 0;
+        _if->wioctl( SIOCIWFIRSTPRIV + 0x8 );
+    }
+
+    OMonitoringInterface::setEnabled( b );
+}
+
+
+QString OOrinocoMonitoringInterface::name() const
+{
+    return "orinoco";
+}