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index 560a87757ee4de73d7f40cf634df3bfba98a29ba..5a3c44d2b10c0716f5ffb313ece7705c3dada907 100755 (executable)
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";
$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) {
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;
+ $have_ntpq = 0;
}
# Just in case of problems, let's not hang Nagios
###
###
-### Then scan xntpdc/ntpdc if it exists
-### and look in the 8th column for dispersion (ntpd v4) or jitter (ntpd v3)
+### Then scan xntpq/ntpq if it exists
+### and look in the 11th column for jitter
###
+# Field 1: Tally Code ( Space, 'x','.','-','+','#','*','o')
+# Only match for '*' which implies sys.peer
+# or 'o' which implies pps.peer
+# If both exist, the last one is picked.
+# Field 2: address of the remote peer
+# Field 3: Refid of the clock (0.0.0.0 if unknown)
+# Field 4: stratum (0-15)
+# Field 5: Type of the peer: local (l), unicast (u), multicast (m)
+# broadcast (b); not sure about multicast/broadcast
+# Field 6: last packet receive (in seconds)
+# Field 7: polling interval
+# Field 8: reachability resgister (octal)
+# Field 9: delay
+# Field 10: offset
+# Field 11: dispersion/jitter
+#
-if ($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;
}
}
$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;
}
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 () {
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();
}