diff options
Diffstat (limited to 'plugins-scripts/check_ntp.pl')
| -rwxr-xr-x | plugins-scripts/check_ntp.pl | 196 |
1 files changed, 134 insertions, 62 deletions
diff --git a/plugins-scripts/check_ntp.pl b/plugins-scripts/check_ntp.pl index 560a8775..5a3c44d2 100755 --- a/plugins-scripts/check_ntp.pl +++ b/plugins-scripts/check_ntp.pl @@ -58,8 +58,8 @@ require 5.004; use POSIX; use strict; use Getopt::Long; -use vars qw($opt_V $opt_h $opt_H $opt_w $opt_c $verbose $PROGNAME); -use lib utils.pm ; +use vars qw($opt_V $opt_h $opt_H $opt_w $opt_c $opt_j $opt_k $verbose $PROGNAME); +use lib utils.pm; use utils qw($TIMEOUT %ERRORS &print_revision &support); $PROGNAME="check_ntp"; @@ -71,13 +71,21 @@ $ENV{'PATH'}=''; $ENV{'BASH_ENV'}=''; $ENV{'ENV'}=''; +# defaults in millisec +my $DEFAULT_OFFSET_WARN = 60000; +my $DEFAULT_OFFSET_CRIT = 120000; +my $DEFAULT_JITTER_WARN = 5000; +my $DEFAULT_JITTER_CRIT = 10000; + Getopt::Long::Configure('bundling'); GetOptions ("V" => \$opt_V, "version" => \$opt_V, "h" => \$opt_h, "help" => \$opt_h, - "v" => \$verbose, "verbose" => \$verbose, + "v" => \$verbose, "verbose" => \$verbose, "w=f" => \$opt_w, "warning=f" => \$opt_w, # offset|adjust warning if above this number "c=f" => \$opt_c, "critical=f" => \$opt_c, # offset|adjust critical if above this number + "j=s" => \$opt_j, "jwarn=s" => \$opt_j, # jitter warning if above this number + "k=s" => \$opt_k, "jcrit=s" => \$opt_k, # jitter critical if above this number "H=s" => \$opt_H, "hostname=s" => \$opt_H); if ($opt_V) { @@ -98,36 +106,48 @@ unless ($host) { exit $ERRORS{'UNKNOWN'}; } -($opt_w) || ($opt_w = 60); -my $warning = $1 if ($opt_w =~ /([0-9.]+)/); +($opt_w) || ($opt_w = $DEFAULT_OFFSET_WARN); +my $owarn = $1 if ($opt_w =~ /([0-9.]+)/); + +($opt_c) || ($opt_c = $DEFAULT_OFFSET_CRIT); +my $ocrit = $1 if ($opt_c =~ /([0-9.]+)/); -($opt_c) || ($opt_c = 120); -my $critical = $1 if ($opt_c =~ /([0-9.]+)/); +($opt_j) || ($opt_j = $DEFAULT_JITTER_WARN); +my $jwarn = $1 if ($opt_j =~ /([0-9]+)/); +($opt_k) || ($opt_k = $DEFAULT_JITTER_CRIT); +my $jcrit = $1 if ($opt_k =~ /([0-9]+)/); -if ($critical < $warning ) { +if ($ocrit < $owarn ) { print "Critical offset should be larger than warning offset\n"; print_usage(); exit $ERRORS{"UNKNOWN"}; } +if ($opt_k < $opt_j) { + print "Critical jitter should be larger than warning jitter\n"; + print_usage(); + exit $ERRORS{'UNKNOWN'}; +} my $stratum = -1; my $ignoreret = 0; my $answer = undef; my $offset = undef; +my $jitter = undef; +my $syspeer = undef; +my $candidates = 0; my $msg; # first line of output to print if format is invalid my $state = $ERRORS{'UNKNOWN'}; my $ntpdate_error = $ERRORS{'UNKNOWN'}; -my $dispersion_error = $ERRORS{'UNKNOWN'}; +my $jitter_error = $ERRORS{'UNKNOWN'}; -my $key = undef; -# some systems don't have a proper ntpdc/xntpdc -my $have_ntpdc = undef; -if ($utils::PATH_TO_NTPDC && -x $utils::PATH_TO_NTPDC ) { - $have_ntpdc = 1; +# some systems don't have a proper ntpq (migrated from ntpdc) +my $have_ntpq = undef; +if ($utils::PATH_TO_NTPQ && -x $utils::PATH_TO_NTPQ ) { + $have_ntpq = 1; }else{ - $have_ntpdc = 0; + $have_ntpq = 0; } # Just in case of problems, let's not hang Nagios @@ -194,28 +214,54 @@ if ( $? && !$ignoreret ) { ### ### -### Then scan xntpdc/ntpdc if it exists -### and look in the 8th column for dispersion (ntpd v4) or jitter (ntpd v3) +### Then scan xntpq/ntpq if it exists +### and look in the 11th column for jitter ### +# Field 1: Tally Code ( Space, 'x','.','-','+','#','*','o') +# Only match for '*' which implies sys.peer +# or 'o' which implies pps.peer +# If both exist, the last one is picked. +# Field 2: address of the remote peer +# Field 3: Refid of the clock (0.0.0.0 if unknown) +# Field 4: stratum (0-15) +# Field 5: Type of the peer: local (l), unicast (u), multicast (m) +# broadcast (b); not sure about multicast/broadcast +# Field 6: last packet receive (in seconds) +# Field 7: polling interval +# Field 8: reachability resgister (octal) +# Field 9: delay +# Field 10: offset +# Field 11: dispersion/jitter +# -if ($have_ntpdc) { +if ($have_ntpq) { - if ( open(NTPDC,"$utils::PATH_TO_NTPDC -s $host 2>&1 |") ) { - while (<NTPDC>) { + if ( open(NTPQ,"$utils::PATH_TO_NTPQ -np $host 2>&1 |") ) { + while (<NTPQ>) { print $_ if ($verbose); - if (/([^\s]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)/) { - if ($8 gt $critical) { - print "Dispersion_crit = $8 :$critical\n" if ($verbose); - $dispersion_error = $ERRORS{'CRITICAL'}; - } elsif ($8 gt $warning ) { - print "Dispersion_warn = $8 :$warning \n" if ($verbose); - $dispersion_error = $ERRORS{'WARNING'}; + # number of candidates on <host> for sys.peer + if (/^(\*|\+|\#|o])/) { + ++$candidates; + print "Candiate count= $candidates\n" if ($verbose); + } + + # match sys.peer or pps.peer + if (/^(\*|o)([-0-9.\s]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([lumb]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)/) { + $syspeer = $2; + $jitter = $11; + print "match $_ \n" if $verbose; + if ($jitter > $jcrit) { + print "Jitter_crit = $11 :$jcrit\n" if ($verbose); + $jitter_error = $ERRORS{'CRITICAL'}; + } elsif ($jitter > $jwarn ) { + print "Jitter_warn = $11 :$jwarn \n" if ($verbose); + $jitter_error = $ERRORS{'WARNING'}; } else { - $dispersion_error = $ERRORS{'OK'}; + $jitter_error = $ERRORS{'OK'}; } } } - close NTPDC; + close NTPQ; } } @@ -229,42 +275,58 @@ if ($ntpdate_error != $ERRORS{'OK'}) { $answer = $msg . "Server for ntp probably down\n"; } - if (defined($offset) && abs($offset) > $critical) { + if (defined($offset) && abs($offset) > $ocrit) { $state = $ERRORS{'CRITICAL'}; - $answer = "Server Error and time difference $offset seconds greater than +/- $critical sec\n"; - } elsif (defined($offset) && abs($offset) > $warning) { - $answer = "Server error and time difference $offset seconds greater than +/- $warning sec\n"; + $answer = "Server Error and offset $offset msec > +/- $ocrit msec\n"; + } elsif (defined($offset) && abs($offset) > $owarn) { + $answer = "Server error and offset $offset msec > +/- $owarn msec\n"; + } elsif (defined($jitter) && abs($jitter) > $jcrit) { + $answer = "Server error and jitter $jitter msec > +/- $jcrit msec\n"; + } elsif (defined($jitter) && abs($jitter) > $jwarn) { + $answer = "Server error and jitter $jitter msec > +/- $jwarn msec\n"; } -} elsif ($have_ntpdc && $dispersion_error != $ERRORS{'OK'}) { - $state = $dispersion_error; - $answer = "Dispersion too high\n"; - if (defined($offset) && abs($offset) > $critical) { +} elsif ($have_ntpq && $jitter_error != $ERRORS{'OK'}) { + $state = $jitter_error; + $answer = "Jitter $jitter too high\n"; + if (defined($offset) && abs($offset) > $ocrit) { $state = $ERRORS{'CRITICAL'}; - $answer = "Dispersion error and time difference $offset seconds greater than +/- $critical sec\n"; - } elsif (defined($offset) && abs($offset) > $warning) { - $answer = "Dispersion error and time difference $offset seconds greater than +/- $warning sec\n"; + $answer = "Jitter error and offset $offset msec > +/- $ocrit msec\n"; + } elsif (defined($offset) && abs($offset) > $owarn) { + $answer = "Jitter error and offset $offset msec > +/- $owarn msec\n"; + } elsif (defined($jitter) && abs($jitter) > $jcrit) { + $answer = "Jitter error and jitter $jitter msec > +/- $jcrit msec\n"; + } elsif (defined($jitter) && abs($jitter) > $jwarn) { + $answer = "Jitter error and jitter $jitter msec > +/- $jwarn msec\n"; } -} else { # no errors from ntpdate or xntpdc - if (defined $offset) { - if (abs($offset) > $critical) { - $state = $ERRORS{'CRITICAL'}; - $answer = "Time difference $offset seconds greater than +/- $critical sec\n"; - } elsif (abs($offset) > $warning) { - $state = $ERRORS{'WARNING'}; - $answer = "Time difference $offset seconds greater than +/- $warning sec\n"; - } elsif (abs($offset) <= $warning) { - $state = $ERRORS{'OK'}; - $answer = "Time difference $offset seconds\n"; - } - } else { # no offset defined - $state = $ERRORS{'UNKNOWN'}; - $answer = "Invalid format returned from ntpdate ($msg)\n"; +} else { # no errors from ntpdate or ntpq + if (abs($offset) > $ocrit) { + $state = $ERRORS{'CRITICAL'}; + $answer = "Offset $offset msec > +/- $ocrit msec, jitter $jitter msec\n"; + } elsif (abs($jitter) > $jcrit ) { + $state = $ERRORS{'CRITICAL'}; + $answer = "Jitter $jitter msec> +/- $jcrit msec, offset $offset msec \n"; + } elsif (abs($offset) > $owarn) { + $state = $ERRORS{'WARNING'}; + $answer = "Offset $offset msec > +/- $owarn msec, jitter $jitter msec\n"; + } elsif (abs($jitter) > $jwarn ) { + $state = $ERRORS{'WARNING'}; + $answer = "Jitter $jitter msec> +/- $jwarn msec, offset $offset msec \n"; + + } else { + $state = $ERRORS{'OK'}; + $answer = "Offset $offset msecs, jitter $jitter msec\n"; } + +# else { # no offset defined +# $state = $ERRORS{'UNKNOWN'}; +# $answer = "Invalid format returned from ntpdate ($msg)\n"; +# } + } -foreach $key (keys %ERRORS) { +foreach my $key (keys %ERRORS) { if ($state==$ERRORS{$key}) { print ("$key: $answer"); last; @@ -272,8 +334,12 @@ foreach $key (keys %ERRORS) { } exit $state; + +#### +#### subs + sub print_usage () { - print "Usage: $PROGNAME -H <host> [-w <warn>] [-c <crit>] [-v verbose]\n"; + print "Usage: $PROGNAME -H <host> [-w <warn>] [-c <crit>] [-j <warn>] [-k <crit>] [-v verbose]\n"; } sub print_help () { @@ -281,10 +347,16 @@ sub print_help () { print "Copyright (c) 2000 Bo Kersey/Karl DeBisschop\n"; print "\n"; print_usage(); - print "\n"; - print "<warn> = Clock offset in seconds at which a warning message will be generated.\n Defaults to 60.\n"; - print "<crit> = Clock offset in seconds at which a critical message will be generated.\n Defaults to 120.\n\n"; - print "The same warning and critical values are used to check against the dispersion \n"; - print "column of ntpdc/xntpdc for the host being queried.\n\n"; + print " +Checks the local timestamp offset versus <host> with ntpdate +Checks the jitter/dispersion of clock signal between <host> and its sys.peer with ntpq\n +-w ( --warning) + Clock offset in milliseconds at which a warning message will be generated.\n Defaults to $DEFAULT_OFFSET_WARN. +-c (--critical) + Clock offset in milliseconds at which a critical message will be generated.\n Defaults to $DEFAULT_OFFSET_CRIT. +-j (--jwarn) + Clock jitter in milliseconds at which a warning message will be generated.\n Defaults to $DEFAULT_JITTER_WARN. +-k (--jcrit) + Clock jitter in milliseconds at which a warning message will be generated.\n Defaults to $DEFAULT_JITTER_CRIT.\n"; support(); } |