Initial revision

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@2 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 188 insertions, 0 deletions

diff --git a/contrib/check_nwstat.pl b/contrib/check_nwstat.pl
new file mode 100644
index 00000000..2194640e
--- /dev/null
+++ b/contrib/check_nwstat.pl
@@ -0,0 +1,188 @@
+#!/usr/bin/perl
+#
+#  check_nwstat.pl: Nagios plugin that uses Jim Drews' nwstat.pl for
+#     MRTG instead of emulating it.  For use particularly with Cliff
+#     Woolley's mrtgext.pl Unix companion to Drews' MRTGEXT.NLM, where
+#     mrtgext.pl can contain custom commands that check_nwstat won't recognize,
+#     though this also does its best to perfectly emulate the C version
+#     of check_nwstat.
+#
+
+
+######################################################################
+#  Configuration
+######################################################################
+
+$nwstatcmd = "/apps/mrtg/helpers/nwstat.pl";
+
+use Getopt::Long;
+
+$::host      = shift || &usage(%ERROR);
+$::opt_v     = undef;
+$::opt_wv    = undef;
+$::opt_cv    = undef;
+$::opt_to    = 10;
+$::opt_url   = undef;
+
+GetOptions (qw(v=s wv=i cv=i to=i url=s)) || &usage(%ERROR);
+
+my $cmd1     = "";
+my $cmd2     = "ZERO";
+my $backward = 0;
+my $desc     = "";
+my $okstr    = "OK";
+my $probstr  = "Problem";
+my $result   = "";
+my @CMD;
+my %ERROR    = ("UNKNOWN"   => -1,
+                "OK"        =>  0,
+                "WARNING"   =>  1,
+                "CRITICAL"  =>  2);
+my $status   = $ERROR{"OK"};
+
+
+######################################################################
+#  Main program
+######################################################################
+
+$SIG{'ALRM'} = sub { 
+    print "Connection timed out\n";
+    exit $ERROR{"CRITICAL"};
+};
+
+# translate table for compatability with
+# check_nwstat (C version)
+SWITCH: for ($::opt_v) {
+           /^LOAD(1|5|15)$/
+                       && do { $desc = "Load <status> - Up <cmd2>, ".
+                                       "$1-min load average = <cmd0>%";
+                               $cmd1 = "UTIL$1";  last; };
+           /^CONNS$/   && do { $desc = "Conns <status>: ".
+                                       "<cmd0> current connections";
+                               $cmd1 = "CONNECT"; last; };
+           /^CDBUFF$/  && do { $desc = "Dirty cache buffers = <cmd0>";
+                               $cmd1 = "S3";      last; };
+           /^LTCH$/    && do { $desc = "Long term cache hits = <cmd0>%";
+                               $cmd1 = "S1";
+                               $backward = 1;     last; };
+           /^CBUFF$/   && do { $desc = "Total cache buffers = <cmd0>";
+                               $cmd1 = "S2";
+                               $backward = 1;     last; };
+           /^LRUM$/    && do { $desc = "LRU sitting time = <cmd0> minutes";
+                               $cmd1 = "S5";
+                               $backward = 1;     last; };
+           /^VPF(.*)$/ && do { $desc = "<status><int(cmd0/1024)> MB ".
+                                       "(<result>%) free on volume $1";
+                               $okstr = ""; $probstr = "Only ";
+                               $cmd1 = "VKF$1";
+                               $cmd2 = "VKS$1";
+                               $backward = 1;     last; };
+           /^VKF/      && do { $desc = "<status><cmd0> KB free on volume $1";
+                               $okstr = ""; $probstr = "Only ";
+                               $cmd1 = "$::opt_v";
+                               $backward = 1;     last; };
+           /^$/        && die "Nothing to check!";
+           $desc = "<status>: <cmd0>";
+           $cmd1 = "$::opt_v";
+        }
+
+
+# begin timeout period, run the check
+alarm($::opt_to);
+open  ( CMD, "$nwstatcmd $host $cmd1 $cmd2|" ) || die "Couldn't execute nwstat";
+@CMD = <CMD>;
+close ( CMD );
+alarm(0);
+
+for (@CMD) { chomp; }
+
+# for any variables that manipulate the results instead of
+# just using <cmd0> directly, do that manipulation here into <result>
+SWITCH: for ($::opt_v) {
+           /^VPF/       && do { $result=int(("$CMD[0]"/"$CMD[1]")*100); last; };
+           $result = "$CMD[0]";
+        }
+
+if ("$result" == -1) {
+   $status = $ERROR{"UNKNOWN"};
+   $desc = "Server returned \"variable unknown\"";
+} elsif ("$result" == -2) {
+   $status = $ERROR{"CRITICAL"};
+   $desc = "Connection failed";
+}
+
+if (defined($::opt_cv) && $status == $ERROR{"OK"}) {
+   if ($backward) {
+      ("$result" <= "$::opt_cv") && ( $status = $ERROR{"CRITICAL"} );
+   } else {
+      ("$result" >= "$::opt_cv") && ( $status = $ERROR{"CRITICAL"} );
+   }
+}
+if (defined($::opt_wv) && $status == $ERROR{"OK"}) {
+   if ($backward) {
+      ("$result" <= "$::opt_wv") && ( $status = $ERROR{"WARNING"} );
+   } else {
+      ("$result" >= "$::opt_wv") && ( $status = $ERROR{"WARNING"} );
+   }
+}
+
+$desc =~ s/<status>/($status == $ERROR{"OK"})?"$okstr":"$probstr"/eg;
+$desc =~ s/<([^>]*)cmd([0-3])([^>]*)>/eval("$1\"$CMD[$2]\"$3")/eg;
+$desc =~ s/<result>/"$result"/eg;
+
+if (defined($::opt_url)) {
+   print "<A HREF=\"$::opt_url\">$desc</A>\n";
+} else {
+   print "$desc\n";
+}
+exit $status;
+
+
+######################################################################
+#  Subroutines
+######################################################################
+
+sub usage {
+
+    %ERROR = shift;
+
+    print <<EOF
+check_nwstat.pl plugin for Nagios
+by Cliff Woolley, (c) 2000
+
+Usage: ./check_nwstat.pl <host_address> [-v variable] [-wv warn_value] [-cv crit_value] [-to to_sec] [-url url_value]
+
+Options:
+ [variable]   = Variable to check.  Valid variables include:
+                  LOAD1    = 1 minute average CPU load
+                  LOAD5    = 5 minute average CPU load
+                  LOAD15   = 15 minute average CPU load
+                  CONNS    = number of currently licensed connections
+                  VPF<vol> = percent free space on volume <vol>
+                  VKF<vol> = KB of free space on volume <vol>
+                  LTCH     = percent long term cache hits
+                  CBUFF    = current number of cache buffers
+                  CDBUFF   = current number of dirty cache buffers
+                  LRUM     = LRU sitting time in minutes
+ [warn_value] = Threshold for value necessary to result in a warning status
+ [crit_value] = Threshold for value necessary to result in a critical status
+ [to_sec]     = Number of secs before connection times out - default is 10 sec
+ [url_value]  = URL to use in output as a hyperlink.  Useful to link to a page
+                with more details or history for this variable (ie an MRTG page)
+
+This plugin attempts to contact the MRTGEXT NLM running on a Novell server
+to gather the requested system information.
+
+Notes:
+ - This plugin requres that the MRTGEXT.NLM file distributed with
+   James Drews' MRTG extension for NetWare (available from
+   http://www.engr.wisc.edu/~drews/mrtg/) be loaded on the Novell
+   servers you wish to check.
+ - Critical thresholds should be lower than warning thresholds when
+   the following variables are checked: VPF, VKF, LTCH, CBUFF, and LRUM.
+EOF
+;
+
+    exit $ERROR{"UNKNOWN"};
+}
+