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path: root/libopie2/opienet/onetwork.cpp
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Diffstat (limited to 'libopie2/opienet/onetwork.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r--libopie2/opienet/onetwork.cpp203
1 files changed, 182 insertions, 21 deletions
diff --git a/libopie2/opienet/onetwork.cpp b/libopie2/opienet/onetwork.cpp
index ae1865d..546be9e 100644
--- a/libopie2/opienet/onetwork.cpp
+++ b/libopie2/opienet/onetwork.cpp
@@ -1,93 +1,92 @@
/*
                This file is part of the Opie Project
-              Copyright (C) 2003-2004 by Michael 'Mickey' Lauer
- =. <mickey@Vanille.de>
+              Copyright (C) 2003-2005 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; version 2 of the License.
-     ._= =}       :
+     ._= =}       :
    .%`+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>
#include <opie2/ostation.h>
#include <opie2/odebug.h>
/* QT */
#include <qfile.h>
#include <qtextstream.h>
/* UNIX */
#include <assert.h>
#include <arpa/inet.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#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>
#ifndef NODEBUG
#include <opie2/odebugmapper.h>
-
using namespace Opie::Core;
using namespace Opie::Net::Internal;
DebugMapper* debugmapper = new DebugMapper();
#endif
/*======================================================================================
* ONetwork
*======================================================================================*/
namespace Opie {
namespace Net {
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 )
@@ -836,193 +835,355 @@ void OWirelessNetworkInterface::setPrivate( const QString& call, int numargs, ..
void OWirelessNetworkInterface::getPrivate( const QString& )
{
oerr << "OWirelessNetworkInterface::getPrivate() is not implemented yet." << oendl;
}
bool OWirelessNetworkInterface::hasPrivate( const QString& call )
{
return child( call.local8Bit() );
}
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();
+ _iwr.u.essid.length = ssid.length()+1; // zero byte
wioctl( SIOCSIWESSID );
}
OStationList* OWirelessNetworkInterface::scanNetwork()
{
_iwr.u.param.flags = IW_SCAN_DEFAULT;
_iwr.u.param.value = 0;
if ( !wioctl( SIOCSIWSCAN ) )
{
return 0;
}
OStationList* stations = new OStationList();
- int timeout = 1000000;
+ int timeout = 10000000;
odebug << "ONetworkInterface::scanNetwork() - scan started." << oendl;
bool results = false;
struct timeval tv;
tv.tv_sec = 0;
tv.tv_usec = 250000; // initial timeout ~ 250ms
char buffer[IW_SCAN_MAX_DATA];
while ( !results && timeout > 0 )
{
timeout -= tv.tv_usec;
select( 0, 0, 0, 0, &tv );
_iwr.u.data.pointer = &buffer[0];
_iwr.u.data.flags = 0;
_iwr.u.data.length = sizeof buffer;
if ( wioctl( SIOCGIWSCAN ) )
{
results = true;
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
+ struct iw_event iwe;
+ struct iw_stream_descr stream;
+ unsigned int cmd_index, event_type, event_len;
+ char *pointer;
+
+ const char standard_ioctl_hdr[] = {
+ IW_HEADER_TYPE_NULL, /* SIOCSIWCOMMIT */
+ IW_HEADER_TYPE_CHAR, /* SIOCGIWNAME */
+ IW_HEADER_TYPE_PARAM, /* SIOCSIWNWID */
+ IW_HEADER_TYPE_PARAM, /* SIOCGIWNWID */
+ IW_HEADER_TYPE_FREQ, /* SIOCSIWFREQ */
+ IW_HEADER_TYPE_FREQ, /* SIOCGIWFREQ */
+ IW_HEADER_TYPE_UINT, /* SIOCSIWMODE */
+ IW_HEADER_TYPE_UINT, /* SIOCGIWMODE */
+ IW_HEADER_TYPE_PARAM, /* SIOCSIWSENS */
+ IW_HEADER_TYPE_PARAM, /* SIOCGIWSENS */
+ IW_HEADER_TYPE_NULL, /* SIOCSIWRANGE */
+ IW_HEADER_TYPE_POINT, /* SIOCGIWRANGE */
+ IW_HEADER_TYPE_NULL, /* SIOCSIWPRIV */
+ IW_HEADER_TYPE_POINT, /* SIOCGIWPRIV */
+ IW_HEADER_TYPE_NULL, /* SIOCSIWSTATS */
+ IW_HEADER_TYPE_POINT, /* SIOCGIWSTATS */
+ IW_HEADER_TYPE_POINT, /* SIOCSIWSPY */
+ IW_HEADER_TYPE_POINT, /* SIOCGIWSPY */
+ IW_HEADER_TYPE_POINT, /* SIOCSIWTHRSPY */
+ IW_HEADER_TYPE_POINT, /* SIOCGIWTHRSPY */
+ IW_HEADER_TYPE_ADDR, /* SIOCSIWAP */
+ IW_HEADER_TYPE_ADDR, /* SIOCGIWAP */
+ IW_HEADER_TYPE_NULL, /* -- hole -- */
+ IW_HEADER_TYPE_POINT, /* SIOCGIWAPLIST */
+ IW_HEADER_TYPE_PARAM, /* SIOCSIWSCAN */
+ IW_HEADER_TYPE_POINT, /* SIOCGIWSCAN */
+ IW_HEADER_TYPE_POINT, /* SIOCSIWESSID */
+ IW_HEADER_TYPE_POINT, /* SIOCGIWESSID */
+ IW_HEADER_TYPE_POINT, /* SIOCSIWNICKN */
+ IW_HEADER_TYPE_POINT, /* SIOCGIWNICKN */
+ IW_HEADER_TYPE_NULL, /* -- hole -- */
+ IW_HEADER_TYPE_NULL, /* -- hole -- */
+ IW_HEADER_TYPE_PARAM, /* SIOCSIWRATE */
+ IW_HEADER_TYPE_PARAM, /* SIOCGIWRATE */
+ IW_HEADER_TYPE_PARAM, /* SIOCSIWRTS */
+ IW_HEADER_TYPE_PARAM, /* SIOCGIWRTS */
+ IW_HEADER_TYPE_PARAM, /* SIOCSIWFRAG */
+ IW_HEADER_TYPE_PARAM, /* SIOCGIWFRAG */
+ IW_HEADER_TYPE_PARAM, /* SIOCSIWTXPOW */
+ IW_HEADER_TYPE_PARAM, /* SIOCGIWTXPOW */
+ IW_HEADER_TYPE_PARAM, /* SIOCSIWRETRY */
+ IW_HEADER_TYPE_PARAM, /* SIOCGIWRETRY */
+ IW_HEADER_TYPE_POINT, /* SIOCSIWENCODE */
+ IW_HEADER_TYPE_POINT, /* SIOCGIWENCODE */
+ IW_HEADER_TYPE_PARAM, /* SIOCSIWPOWER */
+ IW_HEADER_TYPE_PARAM, /* SIOCGIWPOWER */
+ };
+
+ const char standard_event_hdr[] = {
+ IW_HEADER_TYPE_ADDR, /* IWEVTXDROP */
+ IW_HEADER_TYPE_QUAL, /* IWEVQUAL */
+ IW_HEADER_TYPE_POINT, /* IWEVCUSTOM */
+ IW_HEADER_TYPE_ADDR, /* IWEVREGISTERED */
+ IW_HEADER_TYPE_ADDR, /* IWEVEXPIRED */
+ IW_HEADER_TYPE_POINT, /* IWEVGENIE */
+ IW_HEADER_TYPE_POINT, /* IWEVMICHAELMICFAILURE */
+ IW_HEADER_TYPE_POINT, /* IWEVASSOCREQIE */
+ IW_HEADER_TYPE_POINT, /* IWEVASSOCRESPIE */
+ IW_HEADER_TYPE_POINT, /* IWEVPMKIDCAND */
+ };
+
+
+ const int event_type_size[] = {
+ IW_EV_LCP_LEN, /* IW_HEADER_TYPE_NULL */
+ 0,
+ IW_EV_CHAR_LEN, /* IW_HEADER_TYPE_CHAR */
+ 0,
+ IW_EV_UINT_LEN, /* IW_HEADER_TYPE_UINT */
+ IW_EV_FREQ_LEN, /* IW_HEADER_TYPE_FREQ */
+ IW_EV_ADDR_LEN, /* IW_HEADER_TYPE_ADDR */
+ 0,
+ IW_EV_POINT_LEN, /* Without variable payload */
+ IW_EV_PARAM_LEN, /* IW_HEADER_TYPE_PARAM */
+ IW_EV_QUAL_LEN, /* IW_HEADER_TYPE_QUAL */
+ };
+
+
+ //Initialize the stream
+ memset( &stream, 0, sizeof(struct iw_stream_descr) );
+ stream.current = buffer;
+ stream.end = buffer + _iwr.u.data.length;
+
+ do
+ {
+ if ((stream.current + IW_EV_LCP_LEN) > stream.end)
+ break;
+ memcpy((char *) &iwe, stream.current, IW_EV_LCP_LEN);
- int offset = 0;
- struct iw_event* we = (struct iw_event*) &buffer[0];
+ if (iwe.len <= IW_EV_LCP_LEN) //If yes, it is an invalid event
+ break;
+ if (iwe.cmd <= SIOCIWLAST) {
+ cmd_index = iwe.cmd - SIOCIWFIRST;
- while ( offset < _iwr.u.data.length )
- {
- //const char* cmd = *(*_ioctlmap)[we->cmd];
- //if ( !cmd ) cmd = "<unknown>";
+ if(cmd_index < sizeof(standard_ioctl_hdr))
+ event_type = standard_ioctl_hdr[cmd_index];
+ }
+ else {
+ cmd_index = iwe.cmd - IWEVFIRST;
+
+ if(cmd_index < sizeof(standard_event_hdr))
+ event_type = standard_event_hdr[cmd_index];
+ }
+
+ /* Unknown events -> event_type=0 => IW_EV_LCP_LEN */
+ event_len = event_type_size[event_type];
+
+ /* Fixup for later version of WE */
+ if((_range.we_version_compiled > 18) && (event_type == IW_HEADER_TYPE_POINT))
+ event_len -= IW_EV_POINT_OFF;
+
+ /* Check if we know about this event */
+ if(event_len <= IW_EV_LCP_LEN) {
+ /* Skip to next event */
+ stream.current += iwe.len;
+ continue;
+ }
+
+ event_len -= IW_EV_LCP_LEN;
+
+ /* Set pointer on data */
+ if(stream.value != NULL)
+ pointer = stream.value; /* Next value in event */
+ else
+ pointer = stream.current + IW_EV_LCP_LEN; /* First value in event */
+
+ if((pointer + event_len) > stream.end) {
+ /* Go to next event */
+ stream.current += iwe.len;
+ break;
+ }
+
+ /* Fixup for later version of WE */
+ if((_range.we_version_compiled > 18) && (event_type == IW_HEADER_TYPE_POINT))
+ memcpy((char *) &iwe + IW_EV_LCP_LEN + IW_EV_POINT_OFF, pointer, event_len);
+ else
+ memcpy((char *) &iwe + IW_EV_LCP_LEN, pointer, event_len);
+
+ /* Skip event in the stream */
+ pointer += event_len;
+
+ /* Special processing for iw_point events */
+ if(event_type == IW_HEADER_TYPE_POINT) {
+ /* Check the length of the payload */
+
+ if((iwe.len - (event_len + IW_EV_LCP_LEN)) > 0)
+ /* Set pointer on variable part (warning : non aligned) */
+ iwe.u.data.pointer = pointer;
+ else
+ /* No data */
+ iwe.u.data.pointer = NULL;
+ /* Go to next event */
+ stream.current += iwe.len;
+ }
+
+ else {
+ /* Is there more value in the event ? */
+ if((pointer + event_len) <= (stream.current + iwe.len))
+ /* Go to next value */
+ stream.value = pointer;
+ else {
+ /* Go to next event */
+ stream.value = NULL;
+ stream.current += iwe.len;
+ }
+ }
+
+ struct iw_event *we = &iwe;
+ //------
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 = static_cast<const char*>( we->u.essid.pointer );
+ we->u.essid.length = '\0'; // make sure it is zero terminated
+ stations->last()->ssid = static_cast<const char*> (we->u.essid.pointer);
+ odebug << "ESSID: " << stations->last()->ssid << oendl;
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;
-
+ } while (true);
}
else
{
odebug << " - no results (timeout) :(" << oendl;
- return stations;
}
+ 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 max != 0 ? cur*100/max: -1;
}
bool OWirelessNetworkInterface::wioctl( int call, struct iwreq& iwreq ) const
{
#ifndef NODEBUG
int result = ::ioctl( _sfd, call, &iwreq );
if ( result == -1 )