- ONetworkInterfaces are now QObjects

- add support for private IOCTLS
- make buildChannelList() more safe in case of faulty drivers

4 files changed, 178 insertions, 54 deletions

diff --git a/libopie2/opienet/onetutils.cpp b/libopie2/opienet/onetutils.cpp
index 8006f41..3e11b53 100644
--- a/libopie2/opienet/onetutils.cpp
+++ b/libopie2/opienet/onetutils.cpp
@@ -31,16 +31,26 @@
 
 #include <opie2/onetutils.h>
 
 #include <net/if.h>
 
 #include <cstdio>
 using namespace std;
 
+#define IW_PRIV_TYPE_MASK       0x7000
+#define IW_PRIV_TYPE_NONE       0x0000
+#define IW_PRIV_TYPE_BYTE       0x1000
+#define IW_PRIV_TYPE_CHAR       0x2000
+#define IW_PRIV_TYPE_INT        0x4000
+#define IW_PRIV_TYPE_FLOAT      0x5000
+#define IW_PRIV_TYPE_ADDR       0x6000
+#define IW_PRIV_SIZE_FIXED      0x0800
+#define IW_PRIV_SIZE_MASK       0x07FF
+
 /*======================================================================================
  * OMacAddress
  *======================================================================================*/
 
 // static initializer for broadcast and unknown MAC Adresses
 const unsigned char __broadcast[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 const OMacAddress& OMacAddress::broadcast = OMacAddress( __broadcast );
 const unsigned char __unknown[6] = { 0x44, 0x44, 0x44, 0x44, 0x44, 0x44 };
@@ -82,16 +92,65 @@ QString OMacAddress::toString() const
 }
 
 
 bool operator==( const OMacAddress &m1, const OMacAddress &m2 )
 {
     return memcmp( &m1._bytes, &m2._bytes, 6 ) == 0;
 }
 
+
+/*======================================================================================
+ * OHostAddress
+ *======================================================================================*/
+
+
+/*======================================================================================
+ * OPrivateIOCTL
+ *======================================================================================*/
+
+OPrivateIOCTL::OPrivateIOCTL( QObject* parent, const char* name, int cmd, int getargs, int setargs )
+              :QObject( parent, name ), _ioctl( cmd ), _getargs( getargs ), _setargs( setargs )
+{
+}
+
+
+OPrivateIOCTL::~OPrivateIOCTL()
+{
+}
+
+
+inline int OPrivateIOCTL::numberGetArgs() const
+{
+    return _getargs & IW_PRIV_SIZE_MASK;
+}
+
+
+inline int OPrivateIOCTL::typeGetArgs() const
+{
+    return _getargs & IW_PRIV_TYPE_MASK >> 12;
+}
+
+
+inline int OPrivateIOCTL::numberSetArgs() const
+{
+    return _setargs & IW_PRIV_SIZE_MASK;
+}
+
+
+inline int OPrivateIOCTL::typeSetArgs() const
+{
+    return _setargs & IW_PRIV_TYPE_MASK >> 12;
+}
+
+
+/*======================================================================================
+ * assorted functions
+ *======================================================================================*/
+
 void dumpBytes( const unsigned char* data, int num )
 {
     printf( "Dumping %d bytes @ %0x", num, data );
     printf( "-------------------------------------------\n" );
 
     for ( int i = 0; i < num; ++i )
     {
         printf( "%02x ", data[i] );
diff --git a/libopie2/opienet/onetutils.h b/libopie2/opienet/onetutils.h
index 0dabe8d..6640515 100644
--- a/libopie2/opienet/onetutils.h
+++ b/libopie2/opienet/onetutils.h
@@ -31,18 +31,22 @@
 
 #ifndef ONETUTILS_H
 #define ONETUTILS_H
 
 #include <qdict.h>
 #include <qmap.h>
 #include <qstring.h>
 #include <qhostaddress.h>
+#include <qobject.h>
+
+#include <sys/types.h>
 
 struct ifreq;
+class OWirelessNetworkInterface;
 
 /*======================================================================================
  * OMacAddress
  *======================================================================================*/
 
 class OMacAddress
 {
   public:
@@ -75,16 +79,37 @@ class OHostAddress : public QHostAddress
 {
   public:
     OHostAddress();
     ~OHostAddress();
 };
 
 
 /*======================================================================================
+ * OPrivateIOCTL
+ *======================================================================================*/
+
+class OPrivateIOCTL : public QObject
+{
+  public:
+    OPrivateIOCTL( QObject* parent, const char* name, int cmd, int getargs, int setargs );
+    ~OPrivateIOCTL();
+
+    int numberGetArgs() const;
+    int typeGetArgs() const;
+    int numberSetArgs() const;
+    int typeSetArgs() const;
+
+  private:
+    u_int32_t _ioctl;
+    u_int16_t _getargs;
+    u_int16_t _setargs;
+};
+
+ /*======================================================================================
  * Miscellaneous
  *======================================================================================*/
 
 /* dump bytes */
 
 void dumpBytes( const unsigned char* data, int num );
 
 /* Network to host order macros */
diff --git a/libopie2/opienet/onetwork.cpp b/libopie2/opienet/onetwork.cpp
index ac2857a..2548a04 100644
--- a/libopie2/opienet/onetwork.cpp
+++ b/libopie2/opienet/onetwork.cpp
@@ -87,22 +87,22 @@ void ONetwork::synchronize()
     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 );
+            iface = new OWirelessNetworkInterface( this, str );
             qDebug( "ONetwork: interface '%s' has Wireless Extensions", (const char*) str );
         }
         else
         {
-            iface = new ONetworkInterface( str );
+            iface = new ONetworkInterface( this, str );
         }
         _interfaces.insert( str, iface );
         s.readLine();
     }
 }
 
 
 ONetworkInterface* ONetwork::interface( QString iface ) const
@@ -121,34 +121,35 @@ ONetwork* ONetwork::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 );
+    int sfd = socket( AF_INET, SOCK_STREAM, 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 )
+ONetworkInterface::ONetworkInterface( QObject* parent, const char* name )
+                 :QObject( parent, name ),
+                 _sfd( socket( AF_INET, SOCK_DGRAM, 0 ) ), _mon( 0 )
 {
     qDebug( "ONetworkInterface::ONetworkInterface()" );
     init();
 }
 
 
 ifreqstruct& ONetworkInterface::ifr() const
 {
@@ -159,17 +160,17 @@ ifreqstruct& ONetworkInterface::ifr() const
 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 );
+        qDebug( "ONetworkInterface::init(): Warning - can't get socket for device '%s'", name() );
         return;
     }
 }
 
 
 bool ONetworkInterface::ioctl( int call, ifreqstruct& ifreq ) const
 {
     int result = ::ioctl( _sfd, call, &ifreq );
@@ -178,17 +179,17 @@ bool ONetworkInterface::ioctl( int call, ifreqstruct& ifreq ) const
     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 );
+    strcpy( _ifr.ifr_name, name() );
     return ioctl( call, _ifr );
 }
 
 
 bool ONetworkInterface::isLoopback() const
 {
     ioctl( SIOCGIFFLAGS );
     return _ifr.ifr_flags & IFF_LOOPBACK;
@@ -235,32 +236,26 @@ OMacAddress ONetworkInterface::macAddress() const
         return OMacAddress::unknown;
     }
 }
 
 
 void ONetworkInterface::setMonitoring( OMonitoringInterface* m )
 {
     _mon = m;
-    qDebug( "ONetwork::setMonitoring(): Installed monitoring driver '%s' on interface '%s'", (const char*) m->name(), (const char*) _name );
+    qDebug( "ONetwork::setMonitoring(): Installed monitoring driver '%s' on interface '%s'", (const char*) m->name(), 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 )
@@ -363,18 +358,18 @@ int OChannelHopper::interval() const
     return _interval;
 }
 
 
 /*======================================================================================
  * OWirelessNetworkInterface
  *======================================================================================*/
 
-OWirelessNetworkInterface::OWirelessNetworkInterface( const QString& name )
-                           :ONetworkInterface( name ), _hopper( 0 )
+OWirelessNetworkInterface::OWirelessNetworkInterface( QObject* parent, const char* name )
+                         :ONetworkInterface( parent, name ), _hopper( 0 )
 {
     qDebug( "OWirelessNetworkInterface::OWirelessNetworkInterface()" );
     init();
 }
 
 
 OWirelessNetworkInterface::~OWirelessNetworkInterface()
 {
@@ -385,45 +380,19 @@ iwreqstruct& OWirelessNetworkInterface::iwr() const
 {
     return _iwr;
 }
 
 
 void OWirelessNetworkInterface::init()
 {
     qDebug( "OWirelessNetworkInterface::init()" );
-
     memset( &_iwr, 0, sizeof( struct iwreq ) );
-
-    // IEEE802.11(b) radio frequency channels
-
-    iwrangestruct range;
-    //ML: work around an ugly HostAP bug, which needs
-    //ML: extra space or will complain with "invalid argument length"... :-(
-    //ML: But don't allocate too much or prism2_usb will segfault *sigh*
-    char __extraBufferForBuggyDrivers[20];
-
-    qDebug( "sizeof(iwrangestruct)=%d, sizeof range=%d, sizeof range*2=%d", sizeof(iwrangestruct), sizeof range, (sizeof range)*2 );
-
-    _iwr.u.data.pointer = (char*) &range;
-    _iwr.u.data.length =  sizeof(iwrangestruct)+20;
-    _iwr.u.data.flags = 0;
-    if ( !wioctl( SIOCGIWRANGE ) )
-    {
-        qDebug( "OWirelessNetworkInterface::init(): SIOCGIWRANGE failed (%s)", strerror( errno ) );
-        return;
-    }
-
-    qDebug( "OWirelessNetworkInterface::init(): Interface %s reported to have %d channels.", (const char*) _name, range.num_frequency );
-
-    for ( int i = 0; i < range.num_frequency; ++i )
-    {
-        int freq = (int) ( double( range.freq[i].m ) * pow( 10.0, range.freq[i].e ) / 1000000.0 );
-        _channels.insert( freq, i+1 );
-    }
+    buildChannelList();
+    buildPrivateList();
 }
 
 
 QString OWirelessNetworkInterface::associatedAP() const
 {
     //FIXME: use OMacAddress
     QString mac;
 
@@ -440,16 +409,83 @@ QString OWirelessNetworkInterface::associatedAP() const
     else
     {
         mac = "<Unknown>";
     }
     return mac;
 }
 
 
+void OWirelessNetworkInterface::buildChannelList()
+{
+    // IEEE802.11(b) radio frequency channels
+    struct iw_range range;
+
+    //ML: If you listen carefully enough, you can hear lots of WLAN drivers suck
+    //ML: The HostAP drivers need more than sizeof struct_iw range to complete
+    //ML: SIOCGIWRANGE otherwise they fail with "Invalid Argument Length".
+    //ML: The Wlan-NG drivers on the otherside fail (segfault!) if you allocate
+    //ML: _too much_ space. This is damn shitty crap *sigh*
+
+    _iwr.u.data.pointer = (char*) &range;
+    _iwr.u.data.length = IW_MAX_FREQUENCIES; //sizeof range;
+    _iwr.u.data.flags = 0;
+
+    if ( !wioctl( SIOCGIWRANGE ) )
+    {
+        qDebug( "OWirelessNetworkInterface::buildChannelList(): SIOCGIWRANGE failed (%s) - defaulting to 11 channels", strerror( errno ) );
+        _channels.insert( 2412,  1 ); // 2.412 GHz
+        _channels.insert( 2417,  2 ); // 2.417 GHz
+        _channels.insert( 2422,  3 ); // 2.422 GHz
+        _channels.insert( 2427,  4 ); // 2.427 GHz
+        _channels.insert( 2432,  5 ); // 2.432 GHz
+        _channels.insert( 2437,  6 ); // 2.437 GHz
+        _channels.insert( 2442,  7 ); // 2.442 GHz
+        _channels.insert( 2447,  8 ); // 2.447 GHz
+        _channels.insert( 2452,  9 ); // 2.452 GHz
+        _channels.insert( 2457, 10 ); // 2.457 GHz
+        _channels.insert( 2462, 11 ); // 2.462 GHz
+    }
+    else
+    {
+        qDebug( "OWirelessNetworkInterface::buildChannelList(): Interface %s reported to have %d channels.", name(), range.num_frequency );
+        for ( int i = 0; i < range.num_frequency; ++i )
+        {
+            int freq = (int) ( double( range.freq[i].m ) * pow( 10.0, range.freq[i].e ) / 1000000.0 );
+            _channels.insert( freq, i+1 );
+        }
+    }
+    qDebug( "OWirelessNetworkInterface::buildChannelList(): Channel list constructed." );
+}
+
+
+void OWirelessNetworkInterface::buildPrivateList()
+{
+    qDebug( "OWirelessNetworkInterface::buildPrivateList()" );
+
+    struct iw_priv_args priv[IW_MAX_PRIV_DEF];
+
+    _iwr.u.data.pointer = (char*) &priv;
+    _iwr.u.data.length = IW_MAX_PRIV_DEF; // length in terms of number of (sizeof iw_priv_args), not (sizeof iw_priv_args) itself
+    _iwr.u.data.flags = 0;
+
+    if ( !wioctl( SIOCGIWPRIV ) )
+    {
+        qDebug( "OWirelessNetworkInterface::buildPrivateList(): SIOCGIWPRIV failed (%s) - can't get private ioctl information.", strerror( errno ) );
+        return;
+    }
+
+    for ( int i = 0; i < _iwr.u.data.length; ++i )
+    {
+        new OPrivateIOCTL( this, priv[i].name, priv[i].cmd, priv[i].get_args, priv[i].set_args );
+    }
+    qDebug( "OWirelessNetworkInterface::buildPrivateList(): Private IOCTL list constructed." );
+}
+
+
 int OWirelessNetworkInterface::channel() const
 {
     //FIXME: When monitoring enabled, then use it
     //FIXME: to gather the current RF channel
     //FIXME: Until then, get active channel from hopper.
     if ( _hopper && _hopper->isActive() )
         return _hopper->channel();
 
@@ -499,16 +535,17 @@ int OWirelessNetworkInterface::channels() const
 }
 
 
 void OWirelessNetworkInterface::setChannelHopping( int interval )
 {
     if ( !_hopper ) _hopper = new OChannelHopper( this );
     _hopper->setInterval( interval );
     //FIXME: When and by whom will the channel hopper be deleted?
+    //TODO: rely on QObject hierarchy
 }
 
 
 int OWirelessNetworkInterface::channelHopping() const
 {
     return _hopper->interval();
 }
 
@@ -577,17 +614,17 @@ bool OWirelessNetworkInterface::wioctl( int call, iwreqstruct& iwreq ) const
     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 );
+    strcpy( _iwr.ifr_name, name() );
     return wioctl( call, _iwr );
 }
 
 
 /*======================================================================================
  * OMonitoringInterface
  *======================================================================================*/
 
diff --git a/libopie2/opienet/onetwork.h b/libopie2/opienet/onetwork.h
index b57ac3f..acf2f69 100644
--- a/libopie2/opienet/onetwork.h
+++ b/libopie2/opienet/onetwork.h
@@ -44,16 +44,19 @@
 
 /* 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
 
 #include <net/if.h>
@@ -103,42 +106,40 @@ class ONetwork : public QObject
     InterfaceMap _interfaces;
 };
 
 
 /*======================================================================================
  * ONetworkInterface
  *======================================================================================*/
 
-class ONetworkInterface
+class ONetworkInterface : public QObject
 {
     friend class OMonitoringInterface;
     friend class OCiscoMonitoringInterface;
     friend class OWlanNGMonitoringInterface;
     friend class OHostAPMonitoringInterface;
     friend class OOrinocoMonitoringInterface;
 
   public:
-    ONetworkInterface( const QString& name );
+    ONetworkInterface( QObject* parent, const char* name );
     virtual ~ONetworkInterface();
 
-    const QString& name() const;
     void setMonitoring( OMonitoringInterface* );
     OMonitoringInterface* monitoring() const;
     bool setPromiscuousMode( bool );
     bool promiscuousMode() const;
     bool setUp( bool );
     bool isUp() const;
     bool isLoopback() const;
     bool isWireless() const;
     QString ipV4Address() const;
     OMacAddress macAddress() const;
 
   protected:
-    const QString _name;
     const int _sfd;
     mutable ifreqstruct _ifr;
     OMonitoringInterface* _mon;
 
   protected:
     ifreqstruct& ifr() const;
     virtual void init();
     bool ioctl( int call ) const;
@@ -180,17 +181,17 @@ class OWirelessNetworkInterface : public ONetworkInterface
     friend class OCiscoMonitoringInterface;
     friend class OWlanNGMonitoringInterface;
     friend class OHostAPMonitoringInterface;
     friend class OOrinocoMonitoringInterface;
 
   public:
     enum Mode { AdHoc, Managed, Monitor };
 
-    OWirelessNetworkInterface( const QString& name );
+    OWirelessNetworkInterface( QObject* parent, const char* name );
     virtual ~OWirelessNetworkInterface();
 
     virtual void setChannel( int ) const;
     virtual int channel() const;
     virtual double frequency() const;
     virtual int channels() const;
     //virtual double frequency(int) const;
 
@@ -208,25 +209,27 @@ class OWirelessNetworkInterface : public ONetworkInterface
 
     virtual bool isAssociated() const {};
     virtual QString associatedAP() const;
 
     virtual void setSSID( const QString& );
     virtual QString SSID() const;
 
   protected:
-    mutable iwreqstruct _iwr;
-    QMap<int,int> _channels;
-
-  protected:
+    void buildChannelList();
+    void buildPrivateList();
     virtual void init();
     iwreqstruct& iwr() const;
     bool wioctl( int call ) const;
     bool wioctl( int call, iwreqstruct& ) const;
 
+  protected:
+    mutable iwreqstruct _iwr;
+    QMap<int,int> _channels;
+
   private:
     OChannelHopper* _hopper;
 };
 
 
 /*======================================================================================
  * OMonitoringInterface
  *======================================================================================*/