mirror of
https://github.com/monitoring-plugins/monitoring-plugins.git
synced 2026-02-03 18:49:29 -05:00
63734f52ab
This is an initial take at renaming the project to Monitoring Plugins. It's not expected to be fully complete, and it is expected to break things (The perl module for instance). More testing will be required before this goes mainline.
329 lines
9.1 KiB
Perl
Executable file
329 lines
9.1 KiB
Perl
Executable file
#!/usr/bin/perl -w
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#
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#
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# check_disk.pl <host> <share> <user> <pass> [warn] [critical] [port]
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#
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# Monitoring host script to get the disk usage from a SMB share
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#
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# Changes and Modifications
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# =========================
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# 7-Aug-1999 - Michael Anthon
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# Created from check_disk.pl script provided with netsaint_statd (basically
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# cause I was too lazy (or is that smart?) to write it from scratch)
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# 8-Aug-1999 - Michael Anthon
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# Modified [warn] and [critical] parameters to accept format of nnn[M|G] to
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# allow setting of limits in MBytes or GBytes. Percentage settings for large
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# drives is a pain in the butt
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# 2-May-2002 - SGhosh fix for embedded perl
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#
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#
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require 5.004;
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use POSIX;
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use strict;
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use Getopt::Long;
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use vars qw($opt_P $opt_V $opt_h $opt_H $opt_s $opt_W $opt_u $opt_p $opt_w $opt_c $opt_a $verbose);
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use vars qw($PROGNAME);
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use lib utils.pm ;
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use utils qw($TIMEOUT %ERRORS &print_revision &support &usage);
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sub print_help ();
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sub print_usage ();
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$PROGNAME = "check_disk_smb";
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$ENV{'PATH'}='';
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$ENV{'BASH_ENV'}='';
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$ENV{'ENV'}='';
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Getopt::Long::Configure('bundling');
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GetOptions
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("v" => \$verbose, "verbose" => \$verbose,
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"P=s" => \$opt_P, "port=s" => \$opt_P,
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"V" => \$opt_V, "version" => \$opt_V,
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"h" => \$opt_h, "help" => \$opt_h,
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"w=s" => \$opt_w, "warning=s" => \$opt_w,
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"c=s" => \$opt_c, "critical=s" => \$opt_c,
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"p=s" => \$opt_p, "password=s" => \$opt_p,
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"u=s" => \$opt_u, "username=s" => \$opt_u,
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"s=s" => \$opt_s, "share=s" => \$opt_s,
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"W=s" => \$opt_W, "workgroup=s" => \$opt_W,
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"H=s" => \$opt_H, "hostname=s" => \$opt_H,
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"a=s" => \$opt_a, "address=s" => \$opt_a);
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if ($opt_V) {
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print_revision($PROGNAME,'@NP_VERSION@'); #'
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exit $ERRORS{'OK'};
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}
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if ($opt_h) {print_help(); exit $ERRORS{'OK'};}
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my $smbclient = $utils::PATH_TO_SMBCLIENT;
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$smbclient || usage("check requires smbclient, smbclient not set\n");
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-x $smbclient || usage("check requires smbclient, $smbclient: $!\n");
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# Options checking
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($opt_H) || ($opt_H = shift @ARGV) || usage("Host name not specified\n");
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my $host = $1 if ($opt_H =~ /^([-_.A-Za-z0-9 ]+\$?)$/);
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($host) || usage("Invalid host: $opt_H\n");
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($opt_s) || ($opt_s = shift @ARGV) || usage("Share volume not specified\n");
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my $share = $1 if ($opt_s =~ /^([-_.A-Za-z0-9 ]+\$?)$/);
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($share) || usage("Invalid share: $opt_s\n");
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defined($opt_u) || ($opt_u = shift @ARGV) || ($opt_u = "guest");
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my $user = $1 if ($opt_u =~ /^([-_.A-Za-z0-9\\]*)$/);
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defined($user) || usage("Invalid user: $opt_u\n");
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defined($opt_p) || ($opt_p = shift @ARGV) || ($opt_p = "");
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my $pass = $1 if ($opt_p =~ /(.*)/);
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($opt_w) || ($opt_w = shift @ARGV) || ($opt_w = 85);
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my $warn = $1 if ($opt_w =~ /^([0-9]{1,2}\%?|100\%?|[0-9]+[kMG])$/);
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($warn) || usage("Invalid warning threshold: $opt_w\n");
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($opt_c) || ($opt_c = shift @ARGV) || ($opt_c = 95);
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my $crit = $1 if ($opt_c =~ /^([0-9]{1,2}\%?|100\%?|[0-9]+[kMG])$/);
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($crit) || usage("Invalid critical threshold: $opt_c\n");
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# Execute the given command line and return anything it writes to STDOUT and/or
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# STDERR. (This might be useful for other plugins, too, so it should possibly
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# be moved to utils.pm.)
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sub output_and_error_of {
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local *CMD;
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local $/ = undef;
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my $pid = open CMD, "-|";
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if (defined($pid)) {
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if ($pid) {
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return <CMD>;
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} else {
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open STDERR, ">&STDOUT" and exec @_;
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exit(1);
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}
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}
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return undef;
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}
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# split the type from the unit value
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#Check $warn and $crit for type (%/M/G) and set up for tests
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#P = Percent, K = KBytes
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my $warn_type;
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my $crit_type;
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if ($opt_w =~ /^([0-9]+)\%?$/) {
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$warn = "$1";
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$warn_type = "P";
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} elsif ($opt_w =~ /^([0-9]+)k$/) {
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$warn_type = "K";
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$warn = $1;
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} elsif ($opt_w =~ /^([0-9]+)M$/) {
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$warn_type = "K";
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$warn = $1 * 1024;
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} elsif ($opt_w =~ /^([0-9]+)G$/) {
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$warn_type = "K";
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$warn = $1 * 1048576;
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}
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if ($opt_c =~ /^([0-9]+)\%?$/) {
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$crit = "$1";
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$crit_type = "P";
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} elsif ($opt_c =~ /^([0-9]+)k$/) {
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$crit_type = "K";
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$crit = $1;
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} elsif ($opt_c =~ /^([0-9]+)M$/) {
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$crit_type = "K";
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$crit = $1 * 1024;
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} elsif ($opt_c =~ /^([0-9]+)G$/) {
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$crit_type = "K";
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$crit = $1 * 1048576;
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}
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# check if both warning and critical are percentage or size
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unless( ( $warn_type eq "P" && $crit_type eq "P" ) || ( $warn_type ne "P" && $crit_type ne "P" ) ){
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$opt_w =~ s/\%/\%\%/g;
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$opt_c =~ s/\%/\%\%/g;
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usage("Both warning and critical should be same type- warning: $opt_w critical: $opt_c \n");
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}
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# verify warning is less than critical
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if ( $warn_type eq "K") {
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unless ( $warn > $crit) {
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usage("Disk size: warning ($opt_w) should be greater than critical ($opt_c) \n");
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}
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}else{
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unless ( $warn < $crit) {
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$opt_w =~ s/\%/\%\%/g;
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$opt_c =~ s/\%/\%\%/g;
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usage("Percentage: warning ($opt_w) should be less than critical ($opt_c) \n");
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}
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}
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my $workgroup = $1 if (defined($opt_W) && $opt_W =~ /(.*)/);
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my $address = $1 if (defined($opt_a) && $opt_a =~ /(.*)/);
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# end of options checking
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my $state = "OK";
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my $answer = undef;
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my $res = undef;
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my $perfdata = "";
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my @lines = undef;
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# Just in case of problems, let's not hang the monitoring system
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$SIG{'ALRM'} = sub {
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print "No Answer from Client\n";
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exit $ERRORS{"UNKNOWN"};
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};
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alarm($TIMEOUT);
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# Execute a "du" on the share using smbclient program
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# get the results into $res
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my @cmd = (
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$smbclient,
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"//$host/$share",
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"-U", "$user%$pass",
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defined($workgroup) ? ("-W", $workgroup) : (),
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defined($address) ? ("-I", $address) : (),
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defined($opt_P) ? ("-p", $opt_P) : (),
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"-c", "du"
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);
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print join(" ", @cmd) . "\n" if ($verbose);
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$res = output_and_error_of(@cmd) or exit $ERRORS{"UNKNOWN"};
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#Turn off alarm
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alarm(0);
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#Split $res into an array of lines
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@lines = split /\n/, $res;
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#Get the last line into $_
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$_ = $lines[$#lines-1];
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#print "$_\n";
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#Process the last line to get free space.
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#If line does not match required regexp, return an UNKNOWN error
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if (/\s*(\d*) blocks of size (\d*)\. (\d*) blocks available/) {
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my ($avail_bytes) = $3 * $2;
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my ($total_bytes) = $1 * $2;
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my ($occupied_bytes) = $1 * $2 - $avail_bytes;
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my ($avail) = $avail_bytes/1024;
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my ($capper) = int(($3/$1)*100);
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my ($mountpt) = "\\\\$host\\$share";
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# TODO : why is the kB the standard unit for args ?
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my ($warn_bytes) = $total_bytes - $warn * 1024;
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if ($warn_type eq "P") {
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$warn_bytes = $warn * $1 * $2 / 100;
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}
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my ($crit_bytes) = $total_bytes - $crit * 1024;
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if ($crit_type eq "P") {
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$crit_bytes = $crit * $1 * $2 / 100;
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}
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if (int($avail / 1024) > 0) {
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$avail = int($avail / 1024);
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if (int($avail /1024) > 0) {
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$avail = (int(($avail / 1024)*100))/100;
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$avail = $avail ."G";
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} else {
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$avail = $avail ."M";
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}
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} else {
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$avail = $avail ."K";
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}
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#print ":$warn:$warn_type:\n";
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#print ":$crit:$crit_type:\n";
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#print ":$avail:$avail_bytes:$capper:$mountpt:\n";
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$perfdata = "'" . $share . "'=" . $occupied_bytes . 'B;'
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. $warn_bytes . ';'
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. $crit_bytes . ';'
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. '0;'
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. $total_bytes;
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if ($occupied_bytes > $crit_bytes) {
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$state = "CRITICAL";
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$answer = "CRITICAL: Only $avail ($capper%) free on $mountpt";
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} elsif ( $occupied_bytes > $warn_bytes ) {
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$state = "WARNING";
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$answer = "WARNING: Only $avail ($capper%) free on $mountpt";
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} else {
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$answer = "Disk ok - $avail ($capper%) free on $mountpt";
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}
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} else {
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$answer = "Result from smbclient not suitable";
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$state = "UNKNOWN";
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foreach (@lines) {
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if (/(Access denied|NT_STATUS_LOGON_FAILURE|NT_STATUS_ACCESS_DENIED)/) {
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$answer = "Access Denied";
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$state = "CRITICAL";
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last;
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}
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if (/(Unknown host \w*|Connection.*failed)/) {
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$answer = "$1";
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$state = "CRITICAL";
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last;
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}
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if (/(You specified an invalid share name|NT_STATUS_BAD_NETWORK_NAME)/) {
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$answer = "Invalid share name \\\\$host\\$share";
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$state = "CRITICAL";
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last;
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}
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}
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}
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print $answer;
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print " | " . $perfdata if ($perfdata);
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print "\n";
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print "$state\n" if ($verbose);
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exit $ERRORS{$state};
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sub print_usage () {
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print "Usage: $PROGNAME -H <host> -s <share> -u <user> -p <password>
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-w <warn> -c <crit> [-W <workgroup>] [-P <port>] [-a <IP>]\n";
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}
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sub print_help () {
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print_revision($PROGNAME,'@NP_VERSION@');
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print "Copyright (c) 2000 Michael Anthon/Karl DeBisschop
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Perl Check SMB Disk plugin for monitoring
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";
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print_usage();
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print "
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-H, --hostname=HOST
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NetBIOS name of the server
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-s, --share=STRING
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Share name to be tested
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-W, --workgroup=STRING
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Workgroup or Domain used (Defaults to \"WORKGROUP\")
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-a, --address=IP
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IP-address of HOST (only necessary if HOST is in another network)
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-u, --user=STRING
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Username to log in to server. (Defaults to \"guest\")
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-p, --password=STRING
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Password to log in to server. (Defaults to an empty password)
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-w, --warning=INTEGER or INTEGER[kMG]
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Percent of used space at which a warning will be generated (Default: 85%)
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-c, --critical=INTEGER or INTEGER[kMG]
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Percent of used space at which a critical will be generated (Defaults: 95%)
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-P, --port=INTEGER
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Port to be used to connect to. Some Windows boxes use 139, others 445 (Defaults to smbclient default)
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If thresholds are followed by either a k, M, or G then check to see if that
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much disk space is available (kilobytes, Megabytes, Gigabytes)
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Warning percentage should be less than critical
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Warning (remaining) disk space should be greater than critical.
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";
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support();
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}
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