From 5b67839877efa0aa5a11ffcdb75bd4ab9db788aa Mon Sep 17 00:00:00 2001 From: Jan Wagner Date: Fri, 2 May 2014 19:22:30 +0200 Subject: [PATCH] Add check_tftp --- check_tftp/Makefile | 3 ++ check_tftp/check_tftp | 110 ++++++++++++++++++++++++++++++++++++++ check_tftp/check_tftp.cfg | 5 ++ check_tftp/control | 6 +++ check_tftp/copyright | 7 +++ 5 files changed, 131 insertions(+) create mode 100644 check_tftp/Makefile create mode 100644 check_tftp/check_tftp create mode 100644 check_tftp/check_tftp.cfg create mode 100644 check_tftp/control create mode 100644 check_tftp/copyright diff --git a/check_tftp/Makefile b/check_tftp/Makefile new file mode 100644 index 0000000..cf9673d --- /dev/null +++ b/check_tftp/Makefile @@ -0,0 +1,3 @@ +#/usr/bin/make -f + +include ../common.mk diff --git a/check_tftp/check_tftp b/check_tftp/check_tftp new file mode 100644 index 0000000..1d854f2 --- /dev/null +++ b/check_tftp/check_tftp @@ -0,0 +1,110 @@ +#!/usr/bin/perl +# +# ============================== SUMMARY ===================================== +# +# Program : check_tftp.pl +# Version : 0.11 +# Date : Nov 24 2006 +# (added all the top comments you see, no code changes since 2005?) +# Author : William Leibzon - william@leibzon.org +# Summary : This is a nagios plugin that verifies TFTP server is working +# Licence : GPL - summary below, full text at http://www.fsf.org/licenses/gpl.txt +# +# =========================== PROGRAM LICENSE ================================= +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +# +# ===================== INFORMATION ABOUT THIS PLUGIN ========================= +# +# This is a very simple nagios plugin that checks if TFTP server is up +# It is using Net::TFTP perl module for protocol support +# There are two required parameters/arguments: +# $1 - HOSTNAME to check +# $2 - file to retrieve for this check +# An example of how to use this is as follows: +# +#define command{ +# command_name check_tftp +# command_line $USER1$/check_tftp.pl $HOSTADDRESS$ X86PC/UNDI/linux-install +# } +# +#define service{ +# use generic-service +# hostgroup_name dhcpserv +# service_description TFTP +# check_command check_tftp +# } +# =================================== TODO =================================== +# +# 1. Using GetOpt::Long for specifying parameters including timeout & +# number of retries +# 2. Check to make sure file is writable rather then just read-only check +# +# Note: I'm unlikely to work on this plugin unless somebody writes me they +# actually want "tftp write" or similar feature. +# +# ========================== START OF PROGRAM CODE =========================== + +use strict; +use Net::TFTP; +use FileHandle; + +# Nagios specific +# use lib "/usr/local/nagios/libexec"; +# use utils qw(%ERRORS $TIMEOUT); +my $TIMEOUT = 20; +my %ERRORS=('OK'=>0,'WARNING'=>1,'CRITICAL'=>2,'UNKNOWN'=>3,'DEPENDENT'=>4); + +sub print_usage { + print "TFTP Monitor for Nagios by william(at)leibzon.org\n\n"; + print "Usage: check_tftp.pl hostname filename\n"; +} + +# Get the alarm signal (just in case) +$SIG{'ALRM'} = sub { + print ("ERROR: Alarm signal (Nagios time-out)\n"); + exit $ERRORS{"CRITICAL"}; +}; + +if (!defined($ARGV[0]) || !defined($ARGV[1])) { + print_usage(); + exit $ERRORS{"UNKNOWN"}; +} + +my $HOSTNAME = $ARGV[0]; +my $FILENAME = $ARGV[1]; + +alarm($TIMEOUT); + +my $tftp = Net::TFTP->new($HOSTNAME, Port => 69, Retries => 2); +my $err=$tftp->error(); +my $fh=$tftp->get($FILENAME); + +if (!$fh || $err) { + print "CRITICAL ERROR - could not retrieve $FILENAME from $HOSTNAME using tftp - $err\n"; + exit $ERRORS{"CRITICAL"}; +} +else { + my $data = $fh->getline; + $err = $tftp->error(); + if (defined($data) && !$err) { + print "TFTP OK - file $FILENAME present on server $HOSTNAME\n"; + exit $ERRORS{"OK"}; + } + else { + print "CRITICAL ERROR - could not retrieve $FILENAME from $HOSTNAME using tftp - $err\n"; + exit $ERRORS{"CRITICAL"}; + } +} diff --git a/check_tftp/check_tftp.cfg b/check_tftp/check_tftp.cfg new file mode 100644 index 0000000..caee589 --- /dev/null +++ b/check_tftp/check_tftp.cfg @@ -0,0 +1,5 @@ +# 'check_tftp' command definition +define command{ + command_name check_tftp + command_line /usr/lib/monitoring-plugins/check_tftp $HOSTADDRESS$ $ARG1$ + } diff --git a/check_tftp/control b/check_tftp/control new file mode 100644 index 0000000..b60c771 --- /dev/null +++ b/check_tftp/control @@ -0,0 +1,6 @@ +Homepage: http://william.leibzon.org/nagios/ +Watch: http://william.leibzon.org/nagios/plugins/check_tftp.pl Version : ([0-9.]+) +Uploaders: Jan Wagner +Description: plugin that verifies TFTP server is working. +Recommends: libnet-tftp-perl +Version: 0.11 diff --git a/check_tftp/copyright b/check_tftp/copyright new file mode 100644 index 0000000..07846a1 --- /dev/null +++ b/check_tftp/copyright @@ -0,0 +1,7 @@ +Copyright (c) 2006 William Leibzon + +License: GPL v2 + + On Debian systems, the complete text of the GNU General + Public License version 2 can be found in "/usr/share/common-licenses/GPL-2". +