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Raw format, 3 years 4 months old, and 960 hits.

darkfader
Tuesday, September 30th, 2008 at 2:03:41pm MDT 

  1. #!/usr/local/bin/ksh93
  2. # Copyright Florian Heigl(2008)
  3. # availability / other licences upon request. i refuse to think about it now.
  4. # no warranties.
  5.  
  6.  
  7. # Syntax to be
  8. # nagswitch -n <switch name> -g <hostgroup name> [-i <switch ip address] [-c "Description String"]
  9.  
  10.  
  11. # Variables
  12. naghostname=""
  13. # ex: naghostname="vendor-model-num"   
  14. # mandatory: switch hostname as used by nagios
  15. #
  16. naghostname_ip=""
  17. # ex: naghostname_ip="192.168.0.1"     
  18. # mandatory: alternate ip for accessing the switch in case the nagios hostname
  19. # is not resolvable or the visible hostname isnt routable etc.
  20. # obviously this should be optional
  21. # IPv6 addresses should work just as fine
  22. #
  23. naghostgrp=""
  24. # ex: naghostgrp="lanswitches"
  25. # mandatory: nagios hostgroup the device should be added to, must be predefined
  26. # it would be possible, but not helpful to use something like "default" for
  27. # small environments (i guess)
  28. #
  29. #numports=16            # number of switchports
  30. # obsolete, removed,
  31. # will be enumerated via snmp, unless specified
  32. # there are a few pieces that would not work with the switch being unreachable
  33. # needs to some consideration
  34. # also it seems some switches allow for per-vlan statistics and other stuff
  35. # that will be shown as interfaces and need to be filtered, probably via
  36. # iftype (dealt with, as long as the interface types are ethernet-ish
  37. #
  38.  
  39.  
  40. #naghostname="msu1800-1"       
  41. #naghostname_ip="192.168.10.35" 
  42. #nagdescr="Nortel Metro Ethernet Services Unit 1800"
  43. #naghostgroup=switches
  44.  
  45.  
  46. #naghostname="lcs-gs9420-1"
  47. #naghostname_ip="192.168.10.36"
  48. #nagdescr="Longshine GS9420"
  49. #naghostgroup="switches"
  50.  
  51. #naghostname="linksys"
  52. #naghostname_ip="192.168.10.17"
  53. #nagdescr="Linksys WRT54GL DDWRT"
  54. #naghostgroup="routers"
  55.  
  56.  
  57. SNMPCMD="snmpget -c public -v 1"
  58. SNMPWCMD="snmpwalk -c public -v 1"
  59.  
  60.  
  61. # exit if our needed vars are unset, especially now that i can't supply them
  62. # via cmd line
  63.  
  64. if [ -z $naghostname ] || [ -z naghostname_ip ]
  65. then
  66.     echo "Please supply needed information, see source."
  67. fi
  68.  
  69. # define a description string if not already set
  70. if [ -z $nagdescr ]
  71. then
  72.     nagdescr=$( $SNMPCMD $naghostname SNMPv2-MIB::sysName.0 | cut -f3 -d\: )
  73. fi
  74.  
  75.  
  76. # start writing info to cfg file
  77.  
  78. # start out by host definition, use host/service templates
  79. echo "define host{
  80.         use             generic-switch
  81.         host_name       $naghostname
  82.         alias           $nagdescr
  83.         address         $naghostname_ip
  84.         hostgroups      switches
  85.         }" > $naghostname.cfg
  86.  
  87.  
  88. # set up generic services (ping, uptime)
  89. echo "define service{
  90.         use               generic-service
  91.         host_name              $naghostname
  92.         service_description     PING
  93.         service_description     PING
  94.         check_command           check_ping!200.0,20%!600.0,60%
  95.         normal_check_interval   5
  96.         retry_check_interval    1
  97. }" >> $naghostname.cfg
  98.  
  99. #set up specific services (ssh, http[s], telnet, snmp)
  100.  
  101.  
  102.  
  103. # set up services for each port (link state, bandwidth)
  104. # to be added:
  105. # these will all be needed to make this script actually useful, as in
  106. # reducing false positives
  107. # * error counters
  108. # * full duplex / autoneg (must be adjustable to full-duplex manual for
  109. #   people still living in '90s, UNLESS gigabit link)
  110. # * bandwidth monitoring right now uses random values for fast ethernet,
  111. #   need to find a query link speed to get those right
  112. # * also, need to set up according to admin/oper states:
  113. #   op down at scan:    no notifications
  114. #   admin down at scan: no active checks
  115.  
  116. # id of switchport padded with two zeroes, not yet according to port number
  117. # this isnt real padding, obviously. wc -c on number of ports should
  118. # do though, but i.e. vlan ports (1026++ on my switch) should be excluded
  119.  
  120. typeset -Z02 idpad
  121.  
  122. for id in $( $SNMPWCMD $naghostname_ip IF-MIB::ifIndex | awk '{print $NF}' )
  123.  
  124. do
  125.  
  126. ifType="$( $SNMPCMD $naghostname_ip IF-MIB::ifType.$id | awk '{print $NF}' | cut -f1 -d\( )"
  127. if [ "X${ifType}" = "XethernetCsmacd" ] || [ "X${ifType}" = "XgigabitEthernet" ]
  128.  
  129. then
  130.  
  131. idpad="$id"
  132.  
  133. # i wonder if anyone work prefer the ifName supplied names (1/10...)
  134. # geeks probably yes, monitoring people probably not.
  135. #
  136. echo "define service{
  137.         use                     generic-service
  138.         host_name               $naghostname
  139.         service_description     Port $idpad Link Status
  140.         check_command           check_snmp!-C public -o ifOperStatus.$id -r 1 -m RFC1213-MIB
  141.         }
  142. define service{
  143.         use                     generic-service
  144.         host_name               $naghostname
  145.         service_description     Port $idpad Bandwidth Usage
  146.         check_command           check_local_mrtgtraf!/usr/local/www/mrtg/${naghostname_ip}_${id}.log!AVG!1000000,1000000!5000000,5000000!10
  147.         }
  148. define servicedependency{
  149.         host_name                     $naghostname
  150.         service_description          Port $idpad Link Status
  151.         dependent_host_name          $naghostname
  152.         dependent_service_description   Port $idpad Bandwidth Usage
  153.         execution_failure_criteria      w,c,u
  154.         notification_failure_criteria   w,c,u
  155.         }" >> $naghostname.cfg
  156.  
  157. if [ $id = 1 ]
  158.  then
  159.    all_port_services="Port $idpad Link Status, Port $idpad Bandwidth Usage"
  160.  else
  161.    all_port_services="${all_port_services},Port $idpad Link Status, Port $idpad Bandwidth Usage"
  162. fi
  163.  
  164. fi
  165.  
  166.  
  167. done
  168. echo "define servicedependency{
  169.         host_name                       $naghostname
  170.         service_description             PING
  171.         dependent_host_name             $naghostname
  172.         dependent_service_description   $all_port_services
  173.         execution_failure_criteria      w,c,u
  174.         notification_failure_criteria   w,c,u
  175. }" >> $naghostname.cfg

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