| -rw-r--r-- | libopie2/opienet/onetwork.cpp | 23 | ||||
| -rw-r--r-- | libopie2/opienet/onetwork.h | 4 |
2 files changed, 21 insertions, 6 deletions
diff --git a/libopie2/opienet/onetwork.cpp b/libopie2/opienet/onetwork.cpp index 915814d..e5b091f 100644 --- a/libopie2/opienet/onetwork.cpp +++ b/libopie2/opienet/onetwork.cpp @@ -51,192 +51,203 @@ #include <sys/socket.h>
#include <sys/types.h>
#include <unistd.h>
#include <linux/sockios.h>
#include <net/if_arp.h>
#include <stdarg.h>
#ifndef NODEBUG
#include <opie2/odebugmapper.h>
DebugMapper* debugmapper = new DebugMapper();
#endif
/*======================================================================================
* ONetwork
*======================================================================================*/
ONetwork* ONetwork::_instance = 0;
ONetwork::ONetwork()
{
odebug << "ONetwork::ONetwork()" << oendl;
odebug << "ONetwork: This code has been compiled against Wireless Extensions V" << WIRELESS_EXT << oendl;
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
//FIXME: Best is use SIOCGIFCONF and if this doesn't work (result=-1), then fallback to parsing /proc/net/dev
_interfaces.clear();
QString str;
QFile f( "/proc/net/dev" );
bool hasFile = f.open( IO_ReadOnly );
if ( !hasFile )
{
odebug << "ONetwork: /proc/net/dev not existing. No network devices available" << oendl;
return;
}
QTextStream s( &f );
s.readLine();
s.readLine();
while ( !s.atEnd() )
{
s >> str;
str.truncate( str.find( ':' ) );
odebug << "ONetwork: found interface '" << str << "'" << oendl;
ONetworkInterface* iface;
if ( isWirelessInterface( str ) )
{
iface = new OWirelessNetworkInterface( this, (const char*) str );
odebug << "ONetwork: interface '" << str << "' has Wireless Extensions" << oendl;
}
else
{
iface = new ONetworkInterface( this, (const char*) str );
}
_interfaces.insert( str, iface );
s.readLine();
}
}
short ONetwork::wirelessExtensionVersion()
{
return WIRELESS_EXT;
}
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::isPresent( const char* name ) const
+{
+ int sfd = socket( AF_INET, SOCK_STREAM, 0 );
+ struct ifreq ifr;
+ memset( &ifr, 0, sizeof( struct ifreq ) );
+ strcpy( (char*) &ifr.ifr_name, name );
+ int result = ::ioctl( sfd, SIOCGIFFLAGS, &ifr );
+ return result != -1;
+}
+
+
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 )
{
odebug << "ONetworkInterface::ONetworkInterface()" << oendl;
init();
}
struct ifreq& ONetworkInterface::ifr() const
{
return _ifr;
}
void ONetworkInterface::init()
{
odebug << "ONetworkInterface::init()" << oendl;
memset( &_ifr, 0, sizeof( struct ifreq ) );
if ( _sfd == -1 )
{
odebug << "ONetworkInterface::init(): Warning - can't get socket for device '" << name() << "'" << oendl;
return;
}
}
bool ONetworkInterface::ioctl( int call, struct ifreq& ifreq ) const
{
#ifndef NODEBUG
int result = ::ioctl( _sfd, call, &ifreq );
if ( result == -1 )
odebug << "ONetworkInterface::ioctl (" << name() << ") call '" << debugmapper->map( call )
<< "' FAILED! " << result << " (" << strerror( errno ) << ")" << oendl;
else
odebug << "ONetworkInterface::ioctl (" << name() << ") call '" << debugmapper->map( call )
<< "' - Status: Ok." << oendl;
return ( result != -1 );
#else
return ::ioctl( _sfd, call, &ifreq ) != -1;
#endif
}
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() );
@@ -489,197 +500,197 @@ void OWirelessNetworkInterface::buildInformation() {
//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*
//ML: We allocate a large memory region in RAM and check whether the
//ML: driver pollutes this extra space. The complaint will be made on stdout,
//ML: so please forward this...
struct iwreq wrq;
int len = sizeof( struct iw_range )*2;
char *buffer = (char*) malloc( len );
//FIXME: Validate if we actually got the memory block
memset( buffer, 0, len );
memcpy( wrq.ifr_name, name(), IFNAMSIZ);
wrq.u.data.pointer = (caddr_t) buffer;
wrq.u.data.length = sizeof( struct iw_range );
wrq.u.data.flags = 0;
if ( ::ioctl( _sfd, SIOCGIWRANGE, &wrq ) == -1 )
{
owarn << "OWirelessNetworkInterface::buildInformation(): Can't get channel information - using default values." << oendl;
_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
memset( &_range, 0, sizeof( struct iw_range ) );
}
else
{
// <check if the driver overwrites stuff>
int max = 0;
for ( int r = sizeof( struct iw_range ); r < len; r++ )
if (buffer[r] != 0)
max = r;
if (max > 0)
{
owarn << "OWirelessNetworkInterface::buildInformation(): Driver for wireless interface '" << name()
<< "' sucks! It overwrote the buffer end with at least " << max - sizeof( struct iw_range ) << " bytes!" << oendl;
}
// </check if the driver overwrites stuff>
struct iw_range range;
memcpy( &range, buffer, sizeof range );
odebug << "OWirelessNetworkInterface::buildInformation(): Interface reported to have " << (int) range.num_frequency << " channels." << oendl;
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 );
}
}
memcpy( &_range, buffer, sizeof( struct iw_range ) );
odebug << "OWirelessNetworkInterface::buildInformation(): Information block constructed." << oendl;
free(buffer);
}
void OWirelessNetworkInterface::buildPrivateList()
{
odebug << "OWirelessNetworkInterface::buildPrivateList()" << oendl;
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 ) )
{
owarn << "OWirelessNetworkInterface::buildPrivateList(): Can't get private ioctl information." << oendl;
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 );
}
odebug << "OWirelessNetworkInterface::buildPrivateList(): Private ioctl list constructed." << oendl;
}
void OWirelessNetworkInterface::dumpInformation() const
{
odebug << "OWirelessNetworkInterface::() -------------- dumping information block ----------------" << oendl;
- qDebug( " - driver's idea of maximum throughput is %d bps = %d byte/s = %d Kb/s = %f.2 Mb/s",
+ qDebug( " - driver's idea of maximum throughput is %d bps = %d byte/s = %d Kb/s = %f.2 Mb/s",
_range.throughput, _range.throughput / 8, _range.throughput / 8 / 1024, float( _range.throughput ) / 8.0 / 1024.0 / 1024.0 );
qDebug( " - driver for '%s' (V%d) has been compiled against WE V%d",
name(), _range.we_version_source, _range.we_version_compiled );
-
+
if ( _range.we_version_compiled != WIRELESS_EXT )
{
owarn << "Version mismatch! WE_DRIVER = " << _range.we_version_compiled << " and WE_OPIENET = " << WIRELESS_EXT << oendl;
}
odebug << "OWirelessNetworkInterface::() ---------------------------------------------------------" << oendl;
}
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();
if ( !wioctl( SIOCGIWFREQ ) )
{
return -1;
}
else
{
return _channels[ static_cast<int>(double( _iwr.u.freq.m ) * pow( 10.0, _iwr.u.freq.e ) / 1000000) ];
}
}
void OWirelessNetworkInterface::setChannel( int c ) const
{
if ( !c )
{
oerr << "OWirelessNetworkInterface::setChannel( 0 ) called - fix your application!" << oendl;
return;
}
if ( !_mon )
{
memset( &_iwr, 0, sizeof( struct iwreq ) );
_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( 10.0, _iwr.u.freq.e ) / 1000000000.0;
}
}
int OWirelessNetworkInterface::channels() const
{
return _channels.count();
}
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();
}
OChannelHopper* OWirelessNetworkInterface::channelHopper() const
{
return _hopper;
}
void OWirelessNetworkInterface::commit() const
{
wioctl( SIOCSIWCOMMIT );
}
@@ -879,209 +890,209 @@ OStationList* OWirelessNetworkInterface::scanNetwork() continue;
}
else if ( errno == EAGAIN)
{
odebug << "ONetworkInterface::scanNetwork() - scan in progress..." << oendl;
#if 0
if ( qApp )
{
qApp->processEvents( 100 );
continue;
}
#endif
tv.tv_sec = 0;
tv.tv_usec = 100000;
continue;
}
}
odebug << "ONetworkInterface::scanNetwork() - scan finished." << oendl;
if ( results )
{
odebug << " - result length = " << _iwr.u.data.length << oendl;
if ( !_iwr.u.data.length )
{
odebug << " - no results (empty neighbourhood)" << oendl;
return stations;
}
odebug << " - results are in!" << oendl;
dumpBytes( (const unsigned char*) &buffer[0], _iwr.u.data.length );
// parse results
int offset = 0;
struct iw_event* we = (struct iw_event*) &buffer[0];
while ( offset < _iwr.u.data.length )
{
//const char* cmd = *(*_ioctlmap)[we->cmd];
//if ( !cmd ) cmd = "<unknown>";
odebug << " - reading next event... cmd=" << we->cmd << ", len=" << we->len << oendl;
switch (we->cmd)
{
case SIOCGIWAP:
{
odebug << "SIOCGIWAP" << oendl;
stations->append( new OStation() );
stations->last()->macAddress = (const unsigned char*) &we->u.ap_addr.sa_data[0];
break;
}
case SIOCGIWMODE:
{
odebug << "SIOCGIWMODE" << oendl;
stations->last()->type = modeToString( we->u.mode );
break;
}
case SIOCGIWFREQ:
{
odebug << "SIOCGIWFREQ" << oendl;
stations->last()->channel = _channels[ static_cast<int>(double( we->u.freq.m ) * pow( 10.0, we->u.freq.e ) / 1000000) ];
break;
}
case SIOCGIWESSID:
{
odebug << "SIOCGIWESSID" << oendl;
stations->last()->ssid = we->u.essid.pointer;
break;
}
case SIOCGIWSENS: odebug << "SIOCGIWSENS" << oendl; break;
case SIOCGIWENCODE: odebug << "SIOCGIWENCODE" << oendl; break;
case IWEVTXDROP: odebug << "IWEVTXDROP" << oendl; break; /* Packet dropped to excessive retry */
case IWEVQUAL: odebug << "IWEVQUAL" << oendl; break; /* Quality part of statistics (scan) */
case IWEVCUSTOM: odebug << "IWEVCUSTOM" << oendl; break; /* Driver specific ascii string */
case IWEVREGISTERED: odebug << "IWEVREGISTERED" << oendl; break; /* Discovered a new node (AP mode) */
case IWEVEXPIRED: odebug << "IWEVEXPIRED" << oendl; break; /* Expired a node (AP mode) */
default: odebug << "unhandled event" << oendl;
}
offset += we->len;
we = (struct iw_event*) &buffer[offset];
}
return stations;
return stations;
}
else
{
odebug << " - no results (timeout) :(" << oendl;
return stations;
}
}
int OWirelessNetworkInterface::signalStrength() const
-{
+{
iw_statistics stat;
::memset( &stat, 0, sizeof stat );
_iwr.u.data.pointer = (char*) &stat;
_iwr.u.data.flags = 0;
_iwr.u.data.length = sizeof stat;
-
+
if ( !wioctl( SIOCGIWSTATS ) )
{
return -1;
}
-
+
int max = _range.max_qual.qual;
int cur = stat.qual.qual;
int lev = stat.qual.level; //FIXME: Do something with them?
int noi = stat.qual.noise; //FIXME: Do something with them?
-
+
return cur*100/max;
}
bool OWirelessNetworkInterface::wioctl( int call, struct iwreq& iwreq ) const
{
#ifndef NODEBUG
int result = ::ioctl( _sfd, call, &iwreq );
if ( result == -1 )
odebug << "ONetworkInterface::wioctl (" << name() << ") call '"
<< debugmapper->map( call ) << "' FAILED! " << result << " (" << strerror( errno ) << ")" << oendl;
else
odebug << "ONetworkInterface::wioctl (" << name() << ") call '"
<< debugmapper->map( call ) << "' - Status: Ok." << oendl;
return ( result != -1 );
#else
return ::ioctl( _sfd, call, &iwreq ) != -1;
#endif
}
bool OWirelessNetworkInterface::wioctl( int call ) const
{
strcpy( _iwr.ifr_name, name() );
return wioctl( call, _iwr );
}
/*======================================================================================
* OMonitoringInterface
*======================================================================================*/
OMonitoringInterface::OMonitoringInterface( ONetworkInterface* iface, bool prismHeader )
:_if( static_cast<OWirelessNetworkInterface*>( iface ) ), _prismHeader( prismHeader )
{
}
OMonitoringInterface::~OMonitoringInterface()
{
}
void OMonitoringInterface::setChannel( int c )
{
// use standard WE channel switching protocol
memset( &_if->_iwr, 0, sizeof( struct iwreq ) );
_if->_iwr.u.freq.m = c;
_if->_iwr.u.freq.e = 0;
_if->wioctl( SIOCSIWFREQ );
}
void OMonitoringInterface::setEnabled( bool b )
{
}
/*======================================================================================
* OCiscoMonitoringInterface
*======================================================================================*/
OCiscoMonitoringInterface::OCiscoMonitoringInterface( ONetworkInterface* iface, bool prismHeader )
:OMonitoringInterface( iface, prismHeader )
{
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";
}
// flushing and closing will be done automatically when f goes out of scope
}
QString OCiscoMonitoringInterface::name() const
diff --git a/libopie2/opienet/onetwork.h b/libopie2/opienet/onetwork.h index 0a51108..93b129f 100644 --- a/libopie2/opienet/onetwork.h +++ b/libopie2/opienet/onetwork.h @@ -1,192 +1,196 @@ /* This file is part of the Opie Project Copyright (C) 2003-2004 by Michael 'Mickey' Lauer =. <mickey@Vanille.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 #if !defined( OPIE_WE_VERSION ) #error Need to define a wireless extension version to build against! #endif #if OPIE_WE_VERSION == 15 #include "wireless.15.h" #endif #if OPIE_WE_VERSION == 16 #include "wireless.16.h" #endif /* OPIE */ #include <opie2/onetutils.h> #include <opie2/ostation.h> /* QT */ #include <qvaluelist.h> #include <qdict.h> #include <qmap.h> #include <qobject.h> #include <qhostaddress.h> class ONetworkInterface; class OWirelessNetworkInterface; class OChannelHopper; class OMonitoringInterface; /*====================================================================================== * ONetwork *======================================================================================*/ /** * @brief A container class for all network interfaces * * This class provides access to all available network interfaces of your computer. * * @author Michael 'Mickey' Lauer <mickey@vanille.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 @a interface is present. + */ + bool isPresent( const char* interface ) const; + /** * @returns true, if the @a interface supports the wireless extension protocol. */ bool isWirelessInterface( const char* interface ) const; /** * @returns a pointer to the @ref ONetworkInterface object for the specified @a interface or 0, if not found. * @see ONetworkInterface */ 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 issuing a cardctl insert */ void synchronize(); /** * @returns the wireless extension version used at compile time. **/ static short wirelessExtensionVersion(); protected: ONetwork(); 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@vanille.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; /** * Associate the IP address @ addr with the interface. |