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#include <qfile.h>
#include <qfileinfo.h>
#include <qtextstream.h>
#include <resources.h>
#include "usbrun.h"
State_t USBRun::detectState( void ) {
// unavailable : no card found
// available : card found and assigned to us or free
// up : card found and assigned to us and up
NetworkSetup * NC = networkSetup();
QString S = QString( "/tmp/profile-%1.up" ).arg(NC->number());
System & Sys = NSResources->system();
InterfaceInfo * Run;
QFile F( S );
Log(("Detecting for %s\n", NC->name().latin1() ));
if( F.open( IO_ReadOnly ) ) {
// could open file -> read interface and assign
QString X;
QTextStream TS(&F);
X = TS.readLine();
Log(("%s exists\n", S.latin1() ));
// find interface
if( handlesInterface( X ) ) {
for( QDictIterator<InterfaceInfo> It(Sys.interfaces());
It.current();
++It ) {
Run = It.current();
if( X == Run->Name ) {
NC->assignInterface( Run );
return (Run->IsUp) ? IsUp : Available;
}
}
}
}
Log(("Assigned %p\n", NC->assignedInterface() ));
if( ( Run = NC->assignedInterface() ) ) {
// we already have an interface assigned -> still present ?
if( ! Run->IsUp ) {
// usb is still free -> keep assignment
return Available;
} // else interface is up but NOT us -> some other profile
}
// nothing (valid) assigned to us
NC->assignInterface( 0 );
// find possible interface
if( getInterface() ) {
// proper type, and Not UP -> free
// usb cables are currently always available when requested
// until we can detect if we are plugged in
return Available;
}
return Unavailable;
}
QString USBRun::setMyState( NetworkSetup * NC, Action_t, bool ) {
InterfaceInfo * I = getInterface();
if( ! I ) {
return QString("No usb device available");
}
Log(( "Grabbed USB interface %s\n", I->Name.latin1() ));
// grab this interface
NC->assignInterface( I );
return QString();
}
// get interface that is free or assigned to us
InterfaceInfo * USBRun::getInterface( void ) {
System & S = NSResources->system();
InterfaceInfo * best = 0, * Run;
for( QDictIterator<InterfaceInfo> It(S.interfaces());
It.current();
++It ) {
Run = It.current();
Log(("%s %d %d=%d %d\n",
Run->Name.latin1(),
handlesInterface( Run->Name ),
Run->CardType, ARPHRD_ETHER,
! Run->IsUp ));
if( handlesInterface( Run->Name ) &&
Run->CardType == ARPHRD_ETHER
) {
// this is a USB card
if( Run->assignedToNetworkSetup() == netNode()->networkSetup() ) {
// assigned to us
return Run;
} else if( ! Run->IsUp &&
Run->assignedToNetworkSetup() == 0 ) {
// free
best = Run;
} // UP or not assigned to us
}
}
return best; // can be 0
}
bool USBRun::handlesInterface( const QString & S ) {
return Pat.match( S ) >= 0;
}
bool USBRun::handlesInterface( InterfaceInfo * I ) {
return handlesInterface( I->Name );
}
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