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#include <qfile.h>
#include <qtextstream.h>
#include <resources.h>
#include "lancardrun.h"
void LanCardRun::detectState( NodeCollection * NC ) {
// unavailable : no card found
// available : card found and assigned to us or free
// up : card found and assigned to us and up
QString S = QString( "/tmp/profile-%1.up" ).arg(NC->number());
System & Sys = NSResources->system();
InterfaceInfo * Run;
QFile F( S );
if( F.open( IO_ReadOnly ) ) {
// could open file -> read interface and assign
QString X;
QTextStream TS(&F);
X = TS.readLine();
// find interface
if( handlesInterface( X ) ) {
for( QDictIterator<InterfaceInfo> It(Sys.interfaces());
It.current();
++It ) {
Run = It.current();
if( X == Run->Name ) {
Run->assignNode( netNode() );
assignInterface( Run );
NC->setCurrentState( IsUp );
return;
}
}
}
}
// we are certainly not UP
assignInterface( 0 );
// find possible interface
for( QDictIterator<InterfaceInfo> It(Sys.interfaces());
It.current();
++It ) {
Run = It.current();
if( handlesInterface( Run->Name ) &&
Run->CardType == ARPHRD_ETHER &&
! Run->IsUp
) {
// proper type, and Not UP -> free
NC->setCurrentState( Off );
return;
}
}
// no free found
NC->setCurrentState( Unavailable );
}
bool LanCardRun::setState( NodeCollection * NC, Action_t A ) {
// we only handle activate and deactivate
switch( A ) {
case Activate :
{
if( NC->currentState() != Off ) {
return 0;
}
InterfaceInfo * N = getInterface();
if( ! N ) {
// no interface available
NC->setCurrentState( Unavailable );
return 0;
}
// because we were OFF the interface
// we get back is NOT assigned
N->assignNode( netNode() );
assignInterface( N );
NC->setCurrentState( Available );
return 1;
}
case Deactivate :
if( NC->currentState() == IsUp ) {
// bring down first
if( ! connection()->setState( Down ) )
// could not ...
return 0;
}
if( NC->currentState() != Available ) {
return 1;
}
assignedInterface()->assignNode( 0 ); // release
assignInterface( 0 );
NC->setCurrentState( Off );
return 1;
default :
// FT
break;
}
return 0;
}
bool LanCardRun::canSetState( State_t Curr, Action_t A ) {
// we only handle up down activate and deactivate
switch( A ) {
case Activate :
{ // at least available
if( Curr == Available ) {
return 1;
}
// or we can make one available
InterfaceInfo * N = getInterface();
if( ! N || N->assignedNode() != 0 ) {
// non available or assigned
return 0;
}
return 1;
}
case Deactivate :
return ( Curr >= Available );
default :
// FT
break;
}
return 0;
}
// get interface that is free or assigned to us
InterfaceInfo * LanCardRun::getInterface( void ) {
System & S = NSResources->system();
InterfaceInfo * best = 0, * Run;
for( QDictIterator<InterfaceInfo> It(S.interfaces());
It.current();
++It ) {
Run = It.current();
if( handlesInterface( Run->Name ) &&
Run->CardType == ARPHRD_ETHER
) {
// this is a LAN card
if( Run->assignedNode() == netNode() ) {
// assigned to us
return Run;
} else if( Run->assignedNode() == 0 ) {
// free
best = Run;
}
}
}
return best; // can be 0
}
bool LanCardRun::handlesInterface( const QString & S ) {
return Pat.match( S ) >= 0;
}
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