ipreg/subnetview.php

<?php
	include("header.php");
	
	// get page
	if(isset($_GET['page'])) {
		$page = $_GET['page'];
	} else {
		$page = 0;
	}
?>

<script language="javascript">
	function linkTo(optVal){
		if(optVal=="")
			return false;
		window.location='subnetview.php?subnet_id='+optVal;
	}
</script>
<script type="text/javascript">
	function change(id,newtext) {
		document.getElementById(id).innerHTML=newtext
	}
</script> 

<?php
	// get all info
	$result = mysql_query("SELECT subnet_address, subnet_mask, vlan_id, subnet_info FROM subnet WHERE subnet_id='$subnet_id'");
	while ($row = mysql_fetch_object($result)) {
		$subnet_address = $row->subnet_address;
		$subnet_mask = $row->subnet_mask;
		$vlan_id = $row->vlan_id;
		$subnet_info = $row->subnet_info;
	}
	
	// determine current range
	$iprange = explode('.', $subnet_address);
	$iprange1 = $iprange[0];
	$iprange2 = $iprange[1];
	$iprange3 = $iprange[2];
	$iprange4 = $iprange[3];
	
	// calculate no. of hosts
	$hostcount = pow(2,(32-$subnet_mask));
	
	// is there a need for pagination?
	if ($hostcount>256) {
		$maxdisplayedip = 256;
		
		// calculate broadcast address and create pagination
		if ($hostcount>65536) {
		// class A subnet
			echo 'Class A subnets (>65536 nodes) are not supported';
			exit;
		} else {
		// class B subnet
			$broadcast_address = $iprange1 . '.' . $iprange2 . '.' . ($hostcount/256-1) . '.255';
			
			$pagination = 'Page: <select name="pagination" onchange="linkTo(this.options[this.selectedIndex].value);">';
			for ($i=0;$i<($hostcount/256);$i++) {
				if ($i==$page) {
					$selected = ' selected';
				} else {
					$selected = '';
				}
				$pagination .= '<option value="' . $subnet_id . '&page=' . $i . '"' . $selected . '>' . $iprange1 . '.' . $iprange2 . '.' . ($i) . '.0</option>';
			}
			$pagination .= '</select>';
		}
	} else {
	// // class C subnet so no pagination needed, set static variables
		$pagination = '&nbsp;';
		$page = 0;
		$maxdisplayedip = $hostcount;
		$broadcast_address = $iprange1 . '.' . $iprange2 . '.' . $iprange3 . '.' . ($iprange4+$hostcount-1);
	}
?>

	<table border="0">
		<tr>
			<td colspan="32">
				<b>Subnet: </b><?php echo $subnet_address . '/'. $subnet_mask; ?>
			</td>
			<td colspan="32" align="right">
				<?php echo $pagination; ?>
			</td>
		</tr>
			
<?php
		echo '<tr>';
		
		for ($i=1;$i<=$maxdisplayedip;$i++) {
			// build current ip
			$ip = $iprange1 . '.' . $iprange2 . '.' . ($iprange3+$page) . '.' . ($i+$iprange4-1);
			
			// disable subnet_address and broadcast_address
			if ($ip==$subnet_address) {
				echo '<td><img src="images/cross.jpg" onMouseOver="change(\'remotetext\',\'' . $ip . ' (Subnet address)\')" onMouseOut="change(\'remotetext\',\'&nbsp;\')"></td>';
			} else if ($ip==$broadcast_address) {
				echo '<td><img src="images/cross.jpg" onMouseOver="change(\'remotetext\',\'' . $ip . ' (Broadcast address)\')" onMouseOut="change(\'remotetext\',\'&nbsp;\')"></td>';
			} else {
				// check for current ip address
				$result = mysql_query("SELECT a.asset_name, acg.color, n.node_id FROM asset a, assetclass ac, assetclassgroup acg, node n WHERE n.ip='$ip' AND a.asset_id=n.asset_id AND ac.assetclass_id=a.assetclass_id AND acg.assetclassgroup_id=ac.assetclassgroup_id");
				if (mysql_num_rows($result)==0) {
				// ip not in use
					echo '<td><a href="assigniptonode.php?ip='. $ip . '&subnet_id=' . $subnet_id . '"><img src="images/grey.jpg" border="0" onMouseOver="change(\'remotetext\',\'' . $ip . '\')" onMouseOut="change(\'remotetext\',\'&nbsp;\')"></a></td>';
				} else {
				// ip in use
					while ($row = mysql_fetch_object($result)) {
						$node_id = $row->node_id;
						echo '<td><a href="nodeview.php?node_id=' . $node_id . '"><img src="images/' . $row->color . '.jpg" border="0" onMouseOver="change(\'remotetext\',\'' . $ip . '&nbsp;' . $row->asset_name . '\')" onMouseOut="change(\'remotetext\',\'&nbsp;\')"></a></td>';
					}
				}
			}
			
			if ($i%64==0) {
				echo '</tr><tr>';
			}
		}
?>
		<tr>
			<td colspan="64">
				<a id="remotetext">&nbsp;</a>
			</td>
		</tr>
	</table>
	
	<table border="0">
		<tr>
			<td>
				<table border="0">
					<tr>
						<td>
							<b>VLAN(s):</b>
						</td>
						<td>
			
			<?php
				// search vlan(s) for this subnet
				$result = mysql_query("SELECT vlan_id, vlan_number, vlan_name FROM vlan WHERE vlan_id='$vlan_id'");
				while ($row = mysql_fetch_object($result)) {
					echo '<a href="vlanview.php?vlan_id=' . $row->vlan_id . '">' . $row->vlan_name . ' ('. $row->vlan_number . ')</a>';
				}
			?>
			
						</td>
					</tr>
					<tr>
						<td>
							<b>Location(s):</b>
						</td>
						<td>
							
			<?php
				// search location(s) for this subnet
				$result = mysql_query("SELECT l.location_id FROM location l INNER JOIN subnetlocation sl ON l.location_id=sl.location_id WHERE sl.subnet_id='$subnet_id'");
				while ($row = mysql_fetch_object($result)) {
					echo location_name($row->location_id, '') . '<br>';
				}
			?>
			
						</td>
					</tr>
					<tr>
						<td>
							<b>Subnet info:</b>
						</td>
						<td>
							<?php echo nl2br($subnet_info); ?>
						</td>
					</tr>
				</table>
			</td>
			<td width="100">
				&nbsp;
			</td>
			<td>
				<table border="0">
					<tr>
						<td>
							<img src="images/grey.jpg"> Unassigned
						</td>
					</tr>
					</tr>
<?php
							// display assetclass(es)
							$result = mysql_query("SELECT assetclassgroup_id, assetclassgroup_name, color FROM assetclassgroup ORDER BY assetclassgroup_id");
							while ($row = mysql_fetch_object($result)) {
								echo '<tr><td><img src="images/' . $row->color . '.jpg"> <a href="assetclassgroupview.php?assetclassgroup_id=' . $row->assetclassgroup_id . '">' . $row->assetclassgroup_name . '</a></td></tr>';
							}
?>
				</table>
			</td>
		</tr>
	</table>
	
	<p>
	
<?php
	// display only if admin
	if($_SESSION['suser_level'] >= 2) {
?>
	
	<table border="0">
		<tr>
			<td>
				<img src="images/arrow.gif" border="0"><a href="subnetedit.php?subnet_id=<?php echo $subnet_id; ?>">Modify subnet</a>
			</td>
		</tr>
		<tr>
			<td>
				<img src="images/arrow.gif" border="0"><a href="assignsubnettolocation.php?subnet_id=<?php echo $subnet_id; ?>">Assign location</a>
			</td>
		</tr>

<?php
	// end display only if admin
	}
?>

		<tr>
			<td>
				<img src="images/arrow.gif" border="0"><a href="nodelist.php?subnet_id=<?php echo $subnet_id; ?>">View assigned IP addresses in subnet</a>
			</td>
		</tr>
	</table>
	
<?php
	include("footer.php");
?>