From c51721af5c7898d2b4ab3bbfa10bcbcdb89e45d5 Mon Sep 17 00:00:00 2001
From: Adam Amstrong <adama@localhost>
Date: Tue, 10 Nov 2009 19:30:40 +0000
Subject: [PATCH] add CDP discovery to normal discovery

git-svn-id: http://www.observium.org/svn/observer/trunk@510 61d68cd4-352d-0410-923a-c4978735b2b8
---
 includes/discovery/cisco-cdp.inc.php | 69 ++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100755 includes/discovery/cisco-cdp.inc.php

diff --git a/includes/discovery/cisco-cdp.inc.php b/includes/discovery/cisco-cdp.inc.php
new file mode 100755
index 000000000..7bdb814c8
--- /dev/null
+++ b/includes/discovery/cisco-cdp.inc.php
@@ -0,0 +1,69 @@
+<?php
+
+  $community = $device['community'];
+
+  echo("CISCO-CDP-MIB: ");
+
+   
+  unset($cdp_array);
+  $cdp_array = snmpwalk_cache_twopart_oid("cdpCache", $device, $cdp_array, "CISCO-CDP-MIB");
+
+  $cdp_array = $cdp_array[$device[device_id]];
+
+  unset($cdp_links);
+  foreach( array_keys($cdp_array) as $key) { 
+    $interface = mysql_fetch_array(mysql_query("SELECT * FROM `interfaces` WHERE device_id = '".$device['device_id']."' AND `ifIndex` = '".$key."'"));
+    $cdp_if_array = $cdp_array[$key]; 
+    foreach( array_keys($cdp_if_array) as $entry_key) {
+      $cdp_entry_array = $cdp_if_array[$entry_key];
+      if($device['hostname'] && $interface['ifDescr'] && $cdp_entry_array['cdpCacheDeviceId'] && $cdp_entry_array['cdpCacheDevicePort']){
+        $cdp_links .= $device['hostname'] . "," . $interface['ifDescr'] . "," . $cdp_entry_array['cdpCacheDeviceId'] . "," . $cdp_entry_array['cdpCacheDevicePort'] . "\n";
+      }
+    }    
+  }
+
+  #echo("$cdp_links");
+
+  foreach ( explode("\n" ,$cdp_links) as $link ) {
+    if ($link == "") { break; }
+    list($src_host,$src_if, $dst_host, $dst_if) = explode(",", $link);
+    $dst_host = strtolower($dst_host);
+    $dst_if = strtolower($dst_if);
+    $src_host = strtolower($src_host);
+    $src_if = strtolower($src_if);
+    $ip = gethostbyname($dst_host);
+    if ( match_network($config['nets'], $ip) ) {
+      if ( mysql_result(mysql_query("SELECT COUNT(*) FROM `devices` WHERE `sysName` = '$dst_host'"), 0) == '0' ) {
+        if($config['cdp_autocreate']) {
+          echo("++ Creating: $dst_host \n");
+          createHost ($dst_host, $community, "v2c");
+        }
+      } else {
+        echo(".");
+      }
+    } else {
+      echo("!($dst_host)");
+    }
+
+    if ( mysql_result(mysql_query("SELECT COUNT(*) FROM `devices` WHERE `sysName` = '$dst_host'"), 0) == '1' && 
+      mysql_result(mysql_query("SELECT COUNT(*) FROM `devices` WHERE `hostname` = '$src_host'"), 0) == '1' &&
+      mysql_result(mysql_query("SELECT COUNT(*) FROM `interfaces` AS I, `devices` AS D WHERE `ifDescr` = '$dst_if' AND sysName = '$dst_host' AND D.device_id = I.device_id"), 0) == '1' && 
+      mysql_result(mysql_query("SELECT COUNT(*) FROM `interfaces` AS I, `devices` AS D WHERE `ifDescr` = '$src_if' AND hostname = '$src_host' AND D.device_id = I.device_id"), 0) == '1')
+    {
+      $dst_if_id   = mysql_result(mysql_query("SELECT I.interface_id FROM `interfaces` AS I, `devices` AS D WHERE `ifDescr` = '$dst_if' AND sysName = '$dst_host' AND D.device_id = I.device_id"), 0);
+      $src_if_id   = mysql_result(mysql_query("SELECT I.interface_id FROM `interfaces` AS I, `devices` AS D WHERE `ifDescr` = '$src_if' AND hostname = '$src_host' AND D.device_id = I.device_id"), 0);
+      $linkalive[] = $src_if_id . "," . $dst_if_id;
+      if ( mysql_result(mysql_query("SELECT COUNT(*) FROM `links` WHERE `dst_if` = '$dst_if_id' AND `src_if` = '$src_if_id'"),0) == '0') 
+      { 
+        $sql = "INSERT INTO `links` (`src_if`, `dst_if`, `cdp`) VALUES ('$src_if_id', '$dst_if_id', '1')";
+        mysql_query($sql);
+        echo("\n++($src_host $src_if -> $dst_host $dst_if)");
+      } else { 
+        echo(".."); 
+      }
+    } else {
+
+    } 
+  }
+  echo("\n");
+?>