function renderNetCellForAlloc($cell, $needed_mask = NULL)
{
if (empty($cell['spare_ranges']) and $cell['kidc'] == 0 and $cell['mask'] < 31) {
$cell['spare_ranges'][$cell['mask'] + 1][] = $cell['ip_bin'];
$cell['spare_ranges'][$cell['mask'] + 1][] = ip_last($cell) & ip4_mask($cell['mask'] + 1);
}
$ranges = array_keys($cell['spare_ranges']);
sort($ranges, SORT_NUMERIC);
foreach ($ranges as &$range) {
$suffix = count($cell['spare_ranges'][$range]) <= 1 ? '' : '<small> x ' . count($cell['spare_ranges'][$range]) . '</small>';
$range = '<a href="' . makeHref(array('page' => 'ipv4space', 'tab' => 'newrange', 'set-prefix' => ip_format($cell['spare_ranges'][$range][0]) . '/' . $range)) . '">/' . $range . '</a>' . $suffix;
}
$spare_cidr = NULL;
if (isset($needed_mask)) {
for ($i = $needed_mask; $i > 0; $i--) {
if (!empty($cell['spare_ranges'][$i])) {
$spare_cidr = ip_format($cell['spare_ranges'][$i][0]) . '/' . $needed_mask;
break;
}
}
}
echo "<table class='slbcell vscell'><tr><td rowspan=3 width='5%'>";
printImageHREF('NET');
echo '</td>';
echo "<td><a href='index.php?page={$cell['realm']}&id={$cell['id']}'>{$cell['ip']}/{$cell['mask']}</a>";
echo getRenderedIPNetCapacity($cell);
echo '</td></tr>';
echo "<tr><td>";
if (strlen($cell['name'])) {
echo "<strong>" . niftyString($cell['name']) . "</strong>";
} else {
echo "<span class=sparenetwork>no name</span>";
}
// render VLAN
echo '<div class="vlan">' . implode(', ', $ranges) . '</div>';
renderNetVLAN($cell);
echo "</td></tr>";
echo '<tr><td>';
echo count($cell['etags']) ? "<small>" . serializeTags($cell['etags']) . "</small>" : ' ';
if (isset($spare_cidr)) {
echo "<div class='vlan'><a href=\"" . makeHref(array('page' => 'ipv4space', 'tab' => 'newrange', 'set-prefix' => $spare_cidr)) . "\">Allocate /{$needed_mask}</a></div>";
}
echo "</td></tr></table>";
}
function constructIPRange($ip_bin, $mask)
{
$node = array();
switch (strlen($ip_bin)) {
case 4:
// IPv4
if ($mask < 0 || $mask > 32) {
throw new InvalidArgException('mask', $mask, "Invalid v4 prefix length");
}
$node['mask_bin'] = ip4_mask($mask);
$node['mask'] = $mask;
$node['ip_bin'] = $ip_bin & $node['mask_bin'];
$node['ip'] = ip4_format($node['ip_bin']);
break;
case 16:
// IPv6
if ($mask < 0 || $mask > 128) {
throw new InvalidArgException('mask', $mask, "Invalid v6 prefix length");
}
$node['mask_bin'] = ip6_mask($mask);
$node['mask'] = $mask;
$node['ip_bin'] = $ip_bin & $node['mask_bin'];
$node['ip'] = ip6_format($node['ip_bin']);
break;
default:
throw new InvalidArgException('ip_bin', $ip_bin, "Invalid binary IP");
}
return $node;
}