add some missing APIs to ONetworkInterface

2 files changed, 75 insertions, 15 deletions

diff --git a/libopie2/opienet/onetwork.cpp b/libopie2/opienet/onetwork.cpp
index f0094c7..be2736a 100644
--- a/libopie2/opienet/onetwork.cpp
+++ b/libopie2/opienet/onetwork.cpp
@@ -15,329 +15,368 @@
      ._= =}       :          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/sockios.h>
 #include <net/if_arp.h>
 #include <stdarg.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
     //FIXME: we could use SIOCGIFCONF here, but we aren't interested in virtual (e.g. eth0:0) devices
     //FIXME: Use SIOCGIFCONF anway, because we can disable listing of aliased 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( this, (const char*) str );
             qDebug( "ONetwork: interface '%s' has Wireless Extensions", (const char*) str );
         }
         else
         {
             iface = new ONetworkInterface( this, (const char*) str );
         }
         _interfaces.insert( str, iface );
         s.readLine();
     }
 }
 
 
+int ONetwork::count() const
+{
+    return _interfaces.count();
+}
+
+
 ONetworkInterface* ONetwork::interface( const 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_STREAM, 0 );
     struct iwreq iwr;
     memset( &iwr, 0, sizeof( struct iwreq ) );
     strcpy( (char*) &iwr.ifr_name, name );
     int result = ::ioctl( sfd, SIOCGIWNAME, &iwr );
     return result != -1;
 }
 
 /*======================================================================================
  * ONetworkInterface
  *======================================================================================*/
 
 ONetworkInterface::ONetworkInterface( QObject* parent, const char* name )
                  :QObject( parent, name ),
                  _sfd( socket( AF_INET, SOCK_DGRAM, 0 ) ), _mon( 0 )
 {
     qDebug( "ONetworkInterface::ONetworkInterface()" );
     init();
 }
 
 
 struct ifreq& 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'", name() );
         return;
     }
 }
 
 
 bool ONetworkInterface::ioctl( int call, struct ifreq& ifreq ) const
 {
     int result = ::ioctl( _sfd, call, &ifreq );
     if ( result == -1 )
         qDebug( "ONetworkInterface::ioctl (%s) call %d - Status: Failed: %d (%s)", name(), call, result, strerror( errno ) );
     else
         qDebug( "ONetworkInterface::ioctl (%s) call %d - Status: Ok.", name(), call );
     return ( result != -1 );
 }
 
 
 bool ONetworkInterface::ioctl( int call ) const
 {
     strcpy( _ifr.ifr_name, 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;
 }
 
 
+void ONetworkInterface::setIPV4Address( const QHostAddress& addr )
+{
+    struct sockaddr_in *sa = (struct sockaddr_in *) &_ifr.ifr_addr;
+    sa->sin_family = AF_INET;
+    sa->sin_port = 0;
+    sa->sin_addr.s_addr = htonl( addr.ip4Addr() );
+    ioctl( SIOCSIFADDR );
+}
+
+
 QString ONetworkInterface::ipV4Address() const
 {
     if ( ioctl( SIOCGIFADDR ) )
     {
-        struct sockaddr_in *sa = (struct sockaddr_in *) &_ifr.ifr_addr;
+        struct sockaddr_in* sa = (struct sockaddr_in *) &_ifr.ifr_addr;
         //FIXME: Use QHostAddress here
         return QString( inet_ntoa( sa->sin_addr ) );
     }
     else
         return "<unknown>";
 }
 
 
 void ONetworkInterface::setMacAddress( const OMacAddress& addr )
 {
     _ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
     memcpy( &_ifr.ifr_hwaddr.sa_data, addr.native(), 6 );
     ioctl( SIOCSIFHWADDR );
 }
 
 
 OMacAddress ONetworkInterface::macAddress() const
 {
     if ( ioctl( SIOCGIFHWADDR ) )
     {
         return OMacAddress( _ifr );
     }
     else
     {
         return OMacAddress::unknown;
     }
 }
 
 
+void ONetworkInterface::setIPV4Netmask( const QHostAddress& addr )
+{
+    struct sockaddr_in *sa = (struct sockaddr_in *) &_ifr.ifr_addr;
+    sa->sin_family = AF_INET;
+    sa->sin_port = 0;
+    sa->sin_addr.s_addr = htonl( addr.ip4Addr() );
+    ioctl( SIOCSIFNETMASK );
+}
+
+
+QString ONetworkInterface::ipV4Netmask() const
+{
+    if ( ioctl( SIOCGIFNETMASK ) )
+    {
+        struct sockaddr_in* sa = (struct sockaddr_in *) &_ifr.ifr_addr;
+        //FIXME: Use QHostAddress here
+        return QString( inet_ntoa( sa->sin_addr ) );
+    }
+    else
+        return "<unknown>";
+}
+
+
 int ONetworkInterface::dataLinkType() const
 {
     if ( ioctl( SIOCGIFHWADDR ) )
     {
         return _ifr.ifr_hwaddr.sa_family;
     }
     else
     {
         return -1;
     }
 }
 
 
 void ONetworkInterface::setMonitoring( OMonitoringInterface* m )
 {
     _mon = m;
     qDebug( "ONetwork::setMonitoring(): Installed monitoring driver '%s' on interface '%s'", (const char*) m->name(), name() );
 }
 
 
 OMonitoringInterface* ONetworkInterface::monitoring() const
 {
     return _mon;
 }
 
 
 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 ), _tid( 0 )
 {
     int _maxChannel = iface->channels()+1;
     // generate fancy hopping sequence honoring the device capabilities
     if ( _maxChannel >=  1 ) _channels.append(  1 );
     if ( _maxChannel >=  7 ) _channels.append(  7 );
     if ( _maxChannel >= 13 ) _channels.append( 13 );
     if ( _maxChannel >=  2 ) _channels.append(  2 );
     if ( _maxChannel >=  8 ) _channels.append(  8 );
     if ( _maxChannel >=  3 ) _channels.append(  3 );
     if ( _maxChannel >= 14 ) _channels.append( 14 );
     if ( _maxChannel >=  9 ) _channels.append(  9 );
     if ( _maxChannel >=  4 ) _channels.append(  4 );
     if ( _maxChannel >= 10 ) _channels.append( 10 );
     if ( _maxChannel >=  5 ) _channels.append(  5 );
     if ( _maxChannel >= 11 ) _channels.append( 11 );
     if ( _maxChannel >=  6 ) _channels.append(  6 );
     if ( _maxChannel >= 12 ) _channels.append( 12 );
     _channel = _channels.begin();
 
 }
 
 
 OChannelHopper::~OChannelHopper()
 {
 }
 
 
 bool OChannelHopper::isActive() const
 {
     return _tid;
 }
 
 
 int OChannelHopper::channel() const
diff --git a/libopie2/opienet/onetwork.h b/libopie2/opienet/onetwork.h
index db8e702..2348bbc 100644
--- a/libopie2/opienet/onetwork.h
+++ b/libopie2/opienet/onetwork.h
@@ -1,296 +1,317 @@
 /*
                              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.
 
 */
 
 #ifndef ONETWORK_H
 #define ONETWORK_H
 
 /* QT */
 
 #include <qvaluelist.h>
 #include <qdict.h>
 #include <qmap.h>
 #include <qobject.h>
 #include <qhostaddress.h>
 
 /* OPIE */
 
 #include <opie2/onetutils.h>
 
 #ifndef IFNAMSIZ
 #define IFNAMSIZ 16
 #endif
 #ifndef IW_MAX_PRIV_DEF
 #define IW_MAX_PRIV_DEF        128
 #endif
 
 // ML: Yeah, I hate to include kernel headers, but it's necessary here
 // ML: Here comes an ugly hack to prevent <linux/wireless.h> including <linux/if.h>
 // ML: which conflicts with the user header <net/if.h>
-// ML: We really a user header for the Wireless Extensions, something like <net/wireless.h>
-// ML: I will drop Jean an mail on that subject
+// ML: We really need a user header for the Wireless Extensions, something like <net/wireless.h>
+// ML: I will drop Jean a mail on that subject
 
 #include <net/if.h>
 #define _LINUX_IF_H
 #include <linux/wireless.h>
 
 class ONetworkInterface;
 class OWirelessNetworkInterface;
 class OChannelHopper;
 class OMonitoringInterface;
 
 /*======================================================================================
  * ONetwork
  *======================================================================================*/
 
 /**
- * @brief A container class for all network devices.
+ * @brief A container class for all network interfaces
  *
- * This class provides access to all available network devices of your computer.
+ * This class provides access to all available network interfaces of your computer.
  * @author Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
  */
 class ONetwork : public QObject
 {
   Q_OBJECT
 
  public:
     typedef QDict<ONetworkInterface> InterfaceMap;
     typedef QDictIterator<ONetworkInterface> InterfaceIterator;
 
   public:
     /**
+     * @returns the number of available interfaces
+     */
+    int count() const;
+    /**
      * @returns a pointer to the (one and only) @ref ONetwork instance.
      */
     static ONetwork* instance();
     /**
      * @returns an iterator usable for iterating through all network interfaces.
      */
     InterfaceIterator iterator() const;
     /**
      * @returns true, if the @p interface supports the wireless extension protocol.
      */
      // FIXME QString? -zecke
     bool isWirelessInterface( const char* interface ) const;
     /**
      * @returns a pointer to the @ref ONetworkInterface object for the specified @p interface or 0, if not found
      * @see ONetworkInterface
      */
      // FIXME: const QString& is prefered over QString!!! -zecke
     ONetworkInterface* interface( const QString& interface ) const;
+    /**
+     * @internal Rebuild the internal interface database
+     * @note Sometimes it might be useful to call this from client code,
+     * e.g. after cardctl insert
+     */
+    void synchronize();
 
   protected:
     ONetwork();
-    void synchronize();
 
   private:
     static ONetwork* _instance;
     InterfaceMap _interfaces;
 };
 
 
 /*======================================================================================
  * ONetworkInterface
  *======================================================================================*/
 
 /**
  * @brief A network interface wrapper.
  *
  * This class provides a wrapper for a network interface. All the cumbersume details of
  * Linux ioctls are hidden under a convenient high-level interface.
  * @warning Most of the setting methods contained in this class require the appropriate
  * process permissions to work.
  * @author Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
  */
 class ONetworkInterface : public QObject
 {
     friend class OMonitoringInterface;
     friend class OCiscoMonitoringInterface;
     friend class OWlanNGMonitoringInterface;
     friend class OHostAPMonitoringInterface;
     friend class OOrinocoMonitoringInterface;
 
   public:
     /**
      * Constructor. Normally you don't create @ref ONetworkInterface objects yourself,
      * but access them via @ref ONetwork::interface().
      */
     ONetworkInterface( QObject* parent, const char* name );
     /**
      * Destructor.
      */
     virtual ~ONetworkInterface();
     /**
      * Associates a @a monitoring interface with this network interface.
      * @note This is currently only useful with @ref OWirelessNetworkInterface objects.
      */
     void setMonitoring( OMonitoringInterface* monitoring );
     /**
      * @returns the currently associated monitoring interface or 0, if no monitoring is associated.
      */
     OMonitoringInterface* monitoring() const;
     /**
      * Setting an interface to promiscuous mode enables the device to receive
      * all packets on the shared medium - as opposed to packets which are addressed to this interface.
      */
     bool setPromiscuousMode( bool );
     /**
      * @returns true if the interface is set to promiscuous mode.
      */
     bool promiscuousMode() const;
     /**
      * Setting an interface to up enables it to receive packets.
      */
     bool setUp( bool );
     /**
      * @returns true if the interface is up.
      */
     bool isUp() const;
-    /*
+    /**
      * @returns true if the interface is a loopback interface.
      */
     bool isLoopback() const;
-    /*
+    /**
      * @returns true if the interface is featuring supports the wireless extension protocol.
      */
     bool isWireless() const;
-    /*
-     * @returns the IPv4 address associated with this interface.
+    /**
+     * Associate the IP address @ addr with the interface.
+     */
+    void setIPV4Address( const QHostAddress& addr );
+    /**
+     * @returns the IPv4 address associated with the interface.
      */
     QString ipV4Address() const;
-    /*
+    /**
      * Associate the MAC address @a addr with the interface.
      * @note It can be necessary to shut down the interface prior to calling this method.
      * @warning This is not supported by all drivers.
      */
     void setMacAddress( const OMacAddress& addr );
-    /*
-     * @returns the MAC address associated with this interface.
+    /**
+     * @returns the MAC address associated with the interface.
      */
     OMacAddress macAddress() const;
-    /*
-     * @returns the data link type currently associated with this interface.
+    /**
+     * Associate the IPv4 @a netmask with the interface.
+     */
+    void setIPV4Netmask( const QHostAddress& netmask );
+    /**
+     * @returns the IPv4 netmask associated with the interface.
+     */
+    QString ipV4Netmask() const;
+    /**
+     * @returns the data link type currently associated with the interface.
      * @see #include <net/if_arp.h> for possible values.
      */
     int dataLinkType() const;
 
   protected:
     const int _sfd;
     mutable ifreq _ifr;
     OMonitoringInterface* _mon;
 
   protected:
     struct ifreq& ifr() const;
     virtual void init();
     bool ioctl( int call ) const;
     bool ioctl( int call, struct ifreq& ) const;
 };
 
 /*======================================================================================
  * OChannelHopper
  *======================================================================================*/
 
 /**
  * @brief A radio frequency channel hopper.
  *
  * This class provides a channel hopper for radio frequencies. A channel hopper frequently
  * changes the radio frequency channel of its associated @ref OWirelessNetworkInterface.
  * This is necessary when in monitoring mode and scanning for other devices, because
  * the radio frequency hardware can only detect packets sent on the same frequency.
  * @author Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
  */
 class OChannelHopper : public QObject
 {
   Q_OBJECT
 
   public:
     OChannelHopper( OWirelessNetworkInterface* );
     virtual ~OChannelHopper();
     bool isActive() const;
     int channel() const;
     virtual void timerEvent( QTimerEvent* );
     void setInterval( int );
     int interval() const;
 
   signals:
     void hopped( int );
 
   private:
     OWirelessNetworkInterface* _iface;
     int _interval;
     int _tid;
     QValueList<int> _channels;
     QValueList<int>::Iterator _channel;
 };
 
 
 /*======================================================================================
  * OWirelessNetworkInterface
  *======================================================================================*/
 
 /**
  * @brief A network interface wrapper for interfaces supporting the wireless extensions protocol.
  *
  * This class provides a high-level encapsulation of the Linux wireless extension API.
  */
 class OWirelessNetworkInterface : public ONetworkInterface
 {
     friend class OMonitoringInterface;
     friend class OCiscoMonitoringInterface;
     friend class OWlanNGMonitoringInterface;
     friend class OHostAPMonitoringInterface;
     friend class OOrinocoMonitoringInterface;
 
     friend class OPrivateIOCTL;
 
   public:
     enum Mode { AdHoc, Managed, Monitor };
 
     /**
      * Constructor.
      */
     OWirelessNetworkInterface( QObject* parent, const char* name );
     /**
      * Destructor.
      */
     virtual ~OWirelessNetworkInterface();
     /**
      * Setting the @a channel of the interface changes the radio frequency (RF)
      * of the corresponding wireless network device.
      */
     virtual void setChannel( int channel ) const;
     /**
      * @returns the channel index of the current radio frequency.
      */
     virtual int channel() const;
     /**
      * @returns the current radio frequency (in MHz).
      */