#!/usr/bin/perl -w
#
# check_bgpstate.pl - nagios plugin 
#
# Copyright (C) 2000 Christoph Kron
#
# 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
#
# Report bugs to: ck@zet.net
#
# 11.01.2000 Version 1.0



use strict;

use Net::SNMP;
use Getopt::Long;
&Getopt::Long::config('auto_abbrev');


# whois programm for RIPE database queries
my $whois = '/usr/bin/whois';
my $status;
my $TIMEOUT = 30;

# critical bgp sessions
my %uplinks = ( 1273, 'Uplink ECRC',
                1755, 'Uplink EBONE',
                3300, 'Uplink AUCS'
	      );

my %ERRORS = ('UNKNOWN' , '-1',
              'OK' , '0',
              'WARNING', '1',
              'CRITICAL', '2');


my %bgpPeerState = (  
           '1',"idle",
           '2',"connect",
           '3',"active",
           '4',"opensent",
           '5',"openconfirm",
           '6',"established"
        );
my $state = "UNKNOWN";
my $answer = "";
my $snmpkey;
my $snmpoid;
my $key;
my $community = "public";
my $port = 161;
my @snmpoids;
my $snmpbgpPeerState = '1.3.6.1.2.1.15.3.1.2';
my $snmpbgpPeerLocalAddr = '1.3.6.1.2.1.15.3.1.5';
my $snmpbgpPeerRemoteAddr = '1.3.6.1.2.1.15.3.1.7';
my $snmpbgpPeerRemoteAs = '1.3.6.1.2.1.15.3.1.9';
my $hostname;
my $session;
my $error;
my $response;
my %bgpStatus;
my $bgpestablished =0 ;
my $bgpcritical =0;
my $bgpdown =0;
my $bgpidle =0;
my $bgpmessage;
my $asname;
my $remoteas;
my @output;

sub usage {
  printf "\nMissing arguments!\n";
  printf "\n";
  printf "Perl bgpstate plugin for Nagios\n";
  printf "monitors all BGP sessions\n";
  printf "usage: \n";
  printf "check_bgpstate.pl -c <READCOMMUNITY> -p <PORT> <HOSTNAME>\n";
  printf "Copyright (C) 2000 Christoph Kron\n";
  printf "check_bgpstate.pl comes with ABSOLUTELY NO WARRANTY\n";
  printf "This programm is licensed under the terms of the ";
  printf "GNU General Public License\n(check source code for details)\n";
  printf "\n\n";
  exit $ERRORS{"UNKNOWN"};
}