[Mon-commit] mon/mon.d local-syslog.monitor,NONE,1.1.2.1
Brought to you by:
trockij
|
From: Jim T. <tr...@us...> - 2007-06-03 13:43:38
|
Update of /cvsroot/mon/mon/mon.d In directory sc8-pr-cvs16.sourceforge.net:/tmp/cvs-serv22843/mon.d Added Files: Tag: mon-1-2-branch local-syslog.monitor Log Message: added local-syslog.monitor --- NEW FILE: local-syslog.monitor --- #!/usr/bin/perl # # A syslog monitor for mon, with support for Cisco router messages # # $Id: local-syslog.monitor,v 1.1.2.1 2007/06/03 13:43:35 trockij Exp $ # # Copyright (C) 2001-2006, Jon Meek, meekj at ieee.org # # 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 # =head1 NAME B<local-syslog.monitor> - syslog monitor for mon =head1 DESCRIPTION Watch local syslog log files and alert when a regular expression is matched. Include router interface descriptions for logs generate by a Cisco router. =head1 SYNOPSIS When the regular expression is matched, an alert is triggered. The alert details contain the actual log entries that matched. An optional additional description can be added to the details for an IP address / Interface Name pair if the log entry comes from a Cisco router. A common usage involves having other systems send their syslog information to this mon server so they can be watched by this monitor. =head1 OPTIONS =over 5 =item B<-c> Configuration file =item B<-d> Debug/Test. Useful for manual command line use. =back =head1 CONFIGURATION FILE =item B<Strings> Regular expression that will trigger an alarm when there is a match. =item B<BaseDir> The top of the directory tree where the syslog files are kept. =item B<File> Syslog files are usually specified on the command line, but can be listed in the config file as well. =item B<Extended Name> IP Address / Interface Name pairs can be expanded in the details section of an alert. These lines consist of an IP address followed by whitespace, then the interface name followed by whitespace, then a description of the interface. This is added to the alert if the log entry is found to match the output generated from a Cisco router. Example: Strings %BGP-5|%LINEPROTO-5-UPDOWN|%LINK-3-UPDOWN BaseDir /d2/logs/remotesyslog #File exnetmon-gv/cisco.log #File ot-gv/cisco.log 192.168.56.1 FastEthernet0/0 To Extranet Switch 192.168.56.1 Serial0/0 Frame-Relay DHEC266467 DLCI 612 192.168.56.1 FastEthernet0/1 Inside Interface 192.168.56.1 Serial0/1 T-1 to ICO DHEC397828 =head1 MON CONFIGURATION EXAMPLE hostgroup remote-syslog exnetmon-wl/cisco.log ot-wl/cisco.log watch remote-syslog service syslog interval 15m monitor local-syslog.monitor -c /usr/local/mon/syslog.cfg period wd {Sun-Sat} alert mail.alert meekj-at-ieee.org =head1 AUTHOR Jon Meek, meekj at ieee.org =cut use Getopt::Std; #use File::Basename; #use Time::HiRes qw( gettimeofday tv_interval ); $BaseDir = ''; @Failures = (); # Initialize failure list $TimeOfDay = time; # Current time getopts ("dc:"); if (defined $ENV{MON_STATEDIR}) { # Are we running under mon? $STATE_DIR = $ENV{MON_STATEDIR}; $RunningUnderMon = 1; } else { $RunningUnderMon = 0; } if ($opt_c) { # Read configuration file $ConfigFile = $opt_c; if (open(C, $ConfigFile)) { while ($in = <C>) { last if ($in =~ /^Exit/i); next if ($in =~ /^\#/); # Comments chomp $in; if ($in =~ /^BaseDir/i) { ($tag, $BaseDir) = split(' ', $in, 2); next; } if ($in =~ /^File/i) { ($tag, $file) = split(' ', $in, 2); push(@Files, $file); next; } if ($in =~ /^Strings/i) { ($tag, $data) = split(' ', $in, 2); $RegEx .= $data; next; } if ($in =~ /^[0-9\.]+/) { ($router_ip, $interface_name, $description) = split(' ', $in, 3); # print "$router_ip - $interface_name - $description\n" if $opt_d; $RouterInterfaceDescription{"$router_ip $interface_name"} = $description; next; } if ($in =~ /^RouterList/i) { ($tag, $RouterListFile) = split(' ', $in, 2); next; } if ($in =~ /^StateDir/i) { # If the mon environment variable needs to be overriden ($tag, $STATE_DIR) = split(' ', $in, 2); next; } } } else { print "local-syslog.monitor: Couldn't open $ConfigFile configuration file\n"; exit 1; } } push (@Files, @ARGV); # Get file names from the command line foreach $File (@Files) { $FullPath = "$BaseDir/$File"; if (!-e $FullPath) { # File does not exist print "**** $FullPath does not exist\n" if $opt_d; next; } $StateFile = $FullPath; $StateFile =~ s/\//-/g; # Change / to - to make filename $StateFile =~ s/^-//; $StateFile = "$STATE_DIR/$StateFile"; # # Read the previous file sizes if the State File exists # if (-e $StateFile) { print "Existing $StateFile\n" if $opt_d; open(F, $StateFile); $in = <F>; ($t, $last_size) = split(' ', $in); close F; $StateFileExists = 1; # Remember that there is a existing State File } else { $StateFileExists = 0; # or not $last_size = 0; print "No Existing $StateFile\n" if $opt_d; } # # Get file information # ($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size, $atime, $mtime, $ctime, $blksize, $blocks) = stat($FullPath); # $basename = basename($SmartAlarm); # Get the path to the module # $dirname = dirname($SmartAlarm); print "$StateFile Last size: $last_size Size - : $size\n" if $opt_d; next if ($size == $last_size); # File has not changed since last check (may want to check time too) $FailureDetail{$File} = ''; open(F, $FullPath); if ($size > $last_size) { # Position to read new lines only seek(F, $last_size, 0); } while ($in = <F>) { chomp $in; if ($in =~ /$RegEx/o) { # Check the master regular expression # # see if we have a description on the router/interface (from cisco) # if ($in =~ /^(\w{3}\s+\d{1,2}\s+\d{2}:\d{2}:\d{2})\s+(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})/) { $router_ip = $2; $in =~ /\s+Interface\s+([\w\/\.]+)/; $interface_name = $1; # print "*** $router_ip $interface_name\n"; if (exists $RouterInterfaceDescription{"$router_ip $interface_name"}) { $in .= ' [' . $RouterInterfaceDescription{"$router_ip $interface_name"} . ']'; } } $HaveFailureData{$File}++; $FailureDetail{$File} .= "$in\n"; print "$in\n" if $opt_d; } } $CurrentPosition = tell(F); print "Final Position: $CurrentPosition\n" if $opt_d; close F; # Write new state file print "Writing a new $StateFile\n" if $opt_d; open(F, ">$StateFile"); print F "$TimeOfDay $CurrentPosition\n"; close F; } foreach $k (sort keys %HaveFailureData) { push(@Failures, $k); } if (@Failures == 0) { # Indicate "all OK" to mon exit 0; } # # Otherwise we have one or more failures # print "@Failures\n"; foreach $k (@Failures) { print "$k $FailureDetail{$k}\n"; } print "\n"; exit 1; # Indicate failure to mon |