function DisplayBareRelations(WebPage $oPage, $bEditMode = false)
{
parent::DisplayBareRelations($oPage, $bEditMode);
if (!$bEditMode) {
$oPage->SetCurrentTab(Dict::S('Class:Subnet/Tab:IPUsage'));
$bit_ip = ip2long($this->Get('ip'));
$bit_mask = ip2long($this->Get('ip_mask'));
$iIPMin = sprintf('%u', $bit_ip & $bit_mask | 1);
// exclude the first one: identifies the subnet itself
$iIPMax = sprintf('%u', ($bit_ip | ~$bit_mask) & 0xfffffffe);
// exclude the last one : broadcast address
$sIPMin = long2ip($iIPMin);
$sIPMax = long2ip($iIPMax);
$oPage->p(Dict::Format('Class:Subnet/Tab:IPUsage-explain', $sIPMin, $sIPMax));
$oIfFilter = DBObjectSearch::FromOQL("SELECT IPInterface AS if WHERE INET_ATON(if.ipaddress) >= INET_ATON('{$sIPMin}') AND INET_ATON(if.ipaddress) <= INET_ATON('{$sIPMax}')");
$oIfSet = new CMDBObjectSet($oIfFilter);
$oBlock = new DisplayBlock($oIfFilter, 'list', false);
$oBlock->Display($oPage, 'nwif', array('menu' => false));
$iCountUsed = $oIfSet->Count();
$iCountRange = $iIPMax - $iIPMin;
// On 32-bit systems the substraction will be computed using floats for values greater than PHP_MAX_INT;
$iFreeCount = $iCountRange - $iCountUsed;
$oPage->SetCurrentTab(Dict::S('Class:Subnet/Tab:FreeIPs'));
$oPage->p(Dict::Format('Class:Subnet/Tab:FreeIPs-count', $iFreeCount));
$oPage->p(Dict::S('Class:Subnet/Tab:FreeIPs-explain'));
$aUsedIPs = $oIfSet->GetColumnAsArray('ipaddress', false);
$iAnIP = $iIPMin;
$iFound = 0;
while ($iFound < min($iFreeCount, 10) && $iAnIP <= $iIPMax) {
$sAnIP = long2ip($iAnIP);
if (!in_array($sAnIP, $aUsedIPs)) {
$iFound++;
$oPage->p($sAnIP);
} else {
}
$iAnIP++;
}
}
}
