#!/usr/bin/php

### Clean up the database removing old IPs and links

<?php
include("config.php");
include("includes/functions.php");

$query = "SELECT *,A.id as id FROM ipv4_addresses AS A, ports as I, devices as D 
          WHERE A.interface_id = I.interface_id AND I.device_id = D.device_id AND D.status = '1'";

$data = mysql_query($query);
while($row = mysql_fetch_array($data)) {

  $mask = trim(shell_exec($config['ipcalc'] . " ".$row['ipv4_address']."/".$row['ipv4_prefixlen']." | grep Netmask: | cut -d \" \" -f 4"));
  $response = trim(`snmpget -v2c -Osq -c $row[community] $row[hostname]:$row[port] ipAdEntIfIndex.".$row['ipv4_address']." | cut -d " " -f 2`);
  $maskcheck = trim(`snmpget -v2c -Osq -c $row[community] $row[hostname]:$row[port] ipAdEntNetMask.".$row['ipv4_address']." | cut -d " " -f 2`);
  if($response == $row['ifIndex'] && $mask == $maskcheck) {
  } else {
    mysql_query("delete from ipv4_address where id = '".$row['ipv4_address_id']."'");
    echo("Deleted ".$row['ipv4_address']." from $row[hostname]\n");
  }
}

$sql = "SELECT * FROM devices WHERE status = '1'";
$query = mysql_query($sql);
while($device = mysql_fetch_array($query)) {
  echo($device['hostname'] . " \n\n");
  $oids = shell_exec("snmpwalk -v2c -c ".$device['community']." ".$device['hostname'].":".$device['port']." ipAddressIfIndex.ipv6 -Osq");
  $oids = str_replace("ipAddressIfIndex.ipv6.", "", $oids);  $oids = str_replace("\"", "", $oids);  $oids = trim($oids);
  unset($valid_ips);
  foreach(explode("\n", $oids) as $data) {
    $data = trim($data);
    list($ipv6addr,$ifIndex) = explode(" ", $data);
    $valid_ips[] = $ipv6addr;
  }
  $sql   = "SELECT * FROM ip6addr AS A, ports AS I, devices as D WHERE A.interface_id = I.interface_id AND I.device_id = '".$device['device_id']."'";
  $data = mysql_query($sql);
  while($row = mysql_fetch_array($data)) {
    echo($row['addr'] . "\n");
    unset($valid);
    foreach($valid_ips as $valid_ip) {
      echo($row['addr'] . " = $valid_ip ? \n");
    }
  }
}


$query = "SELECT * FROM ports AS I, devices as D 
          WHERE I.device_id = D.device_id AND D.status = '1'";
$data = mysql_query($query);
while($row = mysql_fetch_array($data)) {
  $index = $row['ifIndex'];
  $hostname = $row['hostname'];
  $community = $row['community']; 
  $port = $row['port'];
  $response = trim(`snmpget -v2c -Osq -c $community $hostname:$port ifIndex.$index | cut -d " " -f 2`);
  if($response != $index) {
    mysql_query("DELETE from ports where interface_id = '" . $row['interface_id'] . "'");
    mysql_query("DELETE from `adjacencies` WHERE `interface_id` = '" . $row['interface_id'] . "'");
    mysql_query("DELETE from `links` WHERE `local_interface_id` = '" . $row['interface_id'] . "'");
    mysql_query("DELETE from `links` WHERE `remote_interface_id` = '" . $row['interface_id'] . "'");
    mysql_query("DELETE from `ipaddr` WHERE `interface_id` = '" . $row['interface_id'] . "'");
    echo("Removed interface " . $row['ifDescr'] . " from " . $row['hostname'] . "<br />");
  }
}

echo(mysql_result(mysql_query("SELECT COUNT(*) FROM `ports`"), 0) . " ports at start\n");
$interface_query = mysql_query("SELECT interface_id,device_id FROM `ports`");
while ($interface = mysql_fetch_array($interface_query)) {
  $device_id = $interface['device_id'];
  $interface_id = $interface['interface_id'];
  if(mysql_result(mysql_query("SELECT COUNT(*) FROM `devices` WHERE `device_id` = '$device_id'"), 0) == '0') {
    mysql_query("delete from ports where `interface_id` = '$interface_id'");
    echo("Deleting if $interface_id \n");
  } 
}
echo(mysql_result(mysql_query("SELECT COUNT(*) FROM `ports`"), 0) . " ports at end\n");

echo(mysql_result(mysql_query("SELECT COUNT(id) FROM `links`"), 0) . " links at start\n");
$link_query = mysql_query("SELECT id,local_interface_id,remote_interface_id FROM `links`");
while ($link = mysql_fetch_array($link_query)) {
  $id = $link['id'];
  $src = $link['local_interface_id'];
  $dst = $link['remote_interface_id'];
  if(mysql_result(mysql_query("SELECT COUNT(interface_id) FROM `ports` WHERE `interface_id` = '$src'"), 0) == '0' || mysql_result(mysql_query("SELECT COUNT(*) FROM `ports` WHERE `interface_id` = '$dst'"), 0) == '0') {
    mysql_query("delete from links where `id` = '$id'");
    echo("Deleting link $id \n");
  }
}
echo(mysql_result(mysql_query("SELECT COUNT(id) FROM `links`"), 0) . " links at end\n");

echo(mysql_result(mysql_query("SELECT COUNT(adj_id) FROM `adjacencies`"), 0) . " adjacencies at start\n");
$link_query = mysql_query("SELECT * FROM `adjacencies` AS A, `ports` AS I, `devices` AS D, networks AS N WHERE I.interface_id = A.interface_id AND D.device_id = I.device_id AND N.id = A.network_id");
while ($link = mysql_fetch_array($link_query)) {
  $id = $link['adj_id'];
  $netid = $link['network_id'];
  $ifid = $link['interface_id'];
  if(mysql_result(mysql_query("SELECT COUNT(*) FROM `ports` WHERE `interface_id` = '$ifid'"), 0) == '0' || mysql_result(mysql_query("SELECT COUNT(id) FROM `networks` WHERE `id` = '$netid'"), 0) == '0') {
    $remove = 1;
    echo("Removed Interface!\n");
  }

  list($network, $cidr) = explode("/", $link['cidr']);

  $checksql = "SELECT COUNT(*) FROM `ipaddr` WHERE `interface_id` = '" . $link['interface_id'] . "' AND `cidr` = '$cidr' AND `network` = '$network'";
  if(mysql_result(mysql_query($checksql),0) == 0) { $remove = 1; }


#  echo($link['if'] . " (" . $link['interface_id'] . ") -> " . $link['cidr'] . " \n");

  if($link['cidr'] == "") { $remove = 1; echo("Broken CIDR entry!"); }


  if($remove) {
    mysql_query("delete from adjacencies where `adj_id` = '$id'");
    echo("Deleting link $id (".$link['cidr']." - ". $link['hostname'] ." - ". $link['ifDescr']  .")\n");
  }
  unset($remove);
}
echo(mysql_result(mysql_query("SELECT COUNT(adj_id) FROM `adjacencies`"), 0) . " adjacencies at end\n");


?>