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Diffstat (limited to '')
| -rw-r--r-- | plugins-scripts/check_disk_smb.pl | 349 |
1 files changed, 349 insertions, 0 deletions
diff --git a/plugins-scripts/check_disk_smb.pl b/plugins-scripts/check_disk_smb.pl new file mode 100644 index 0000000..eda8dd4 --- /dev/null +++ b/plugins-scripts/check_disk_smb.pl @@ -0,0 +1,349 @@ +#!@PERL@ -w +# +# +# check_disk.pl <host> <share> <user> <pass> [warn] [critical] [port] +# +# Monitoring host script to get the disk usage from a SMB share +# +# Changes and Modifications +# ========================= +# 7-Aug-1999 - Michael Anthon +# Created from check_disk.pl script provided with netsaint_statd (basically +# cause I was too lazy (or is that smart?) to write it from scratch) +# 8-Aug-1999 - Michael Anthon +# Modified [warn] and [critical] parameters to accept format of nnn[M|G] to +# allow setting of limits in MBytes or GBytes. Percentage settings for large +# drives is a pain in the butt +# 2-May-2002 - SGhosh fix for embedded perl +# +# + +require 5.004; +use POSIX qw(setsid); +use strict; +use Getopt::Long; +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 $opt_C $opt_t $verbose); +use vars qw($PROGNAME); +use FindBin; +use lib "$FindBin::Bin"; +use utils qw($TIMEOUT %ERRORS &print_revision &support &usage); + +# make us session leader which makes all children exit if we do +setsid; + +sub print_help (); +sub print_usage (); + +$PROGNAME = "check_disk_smb"; + +$ENV{'PATH'}='@TRUSTED_PATH@'; +$ENV{'BASH_ENV'}=''; +$ENV{'ENV'}=''; + +Getopt::Long::Configure('bundling'); +GetOptions + ("v" => \$verbose, "verbose" => \$verbose, + "t=i" => \$opt_t, "timeout=i" => \$opt_t, + "P=s" => \$opt_P, "port=s" => \$opt_P, + "V" => \$opt_V, "version" => \$opt_V, + "h" => \$opt_h, "help" => \$opt_h, + "w=s" => \$opt_w, "warning=s" => \$opt_w, + "c=s" => \$opt_c, "critical=s" => \$opt_c, + "p=s" => \$opt_p, "password=s" => \$opt_p, + "u=s" => \$opt_u, "username=s" => \$opt_u, + "s=s" => \$opt_s, "share=s" => \$opt_s, + "W=s" => \$opt_W, "workgroup=s" => \$opt_W, + "H=s" => \$opt_H, "hostname=s" => \$opt_H, + "a=s" => \$opt_a, "address=s" => \$opt_a, + "C=s" => \$opt_C, "configfile=s" => \$opt_C); + +if ($opt_V) { + print_revision($PROGNAME,'@NP_VERSION@'); #' + exit $ERRORS{'UNKNOWN'}; +} + +if ($opt_h) {print_help(); exit $ERRORS{'UNKNOWN'};} + +my $smbclient = $utils::PATH_TO_SMBCLIENT; +$smbclient || usage("check requires smbclient, smbclient not set\n"); +-x $smbclient || usage("check requires smbclient, $smbclient: $!\n"); + +# Options checking + +($opt_H) || ($opt_H = shift @ARGV) || usage("Host name not specified\n"); +my $host = $1 if ($opt_H =~ /^([-_.A-Za-z0-9 ]+\$?)$/); +($host) || usage("Invalid host: $opt_H\n"); + +($opt_s) || ($opt_s = shift @ARGV) || usage("Share volume not specified\n"); +my $share = $1 if ($opt_s =~ /^([-_.A-Za-z0-9 ]+\$?)$/); +($share) || usage("Invalid share: $opt_s\n"); + +defined($opt_u) || ($opt_u = shift @ARGV) || ($opt_u = "guest"); +my $user = $1 if ($opt_u =~ /^([-_.A-Za-z0-9\\]*)$/); +defined($user) || usage("Invalid user: $opt_u\n"); + +defined($opt_p) || ($opt_p = shift @ARGV) || ($opt_p = ""); +my $pass = $1 if ($opt_p =~ /(.*)/); + +($opt_w) || ($opt_w = shift @ARGV) || ($opt_w = 85); +my $warn = $1 if ($opt_w =~ /^([0-9]{1,2}\%?|100\%?|[0-9]+[kMG])$/); +($warn) || usage("Invalid warning threshold: $opt_w\n"); + +($opt_c) || ($opt_c = shift @ARGV) || ($opt_c = 95); +my $crit = $1 if ($opt_c =~ /^([0-9]{1,2}\%?|100\%?|[0-9]+[kMG])$/); +($crit) || usage("Invalid critical threshold: $opt_c\n"); + +($opt_C) || ($opt_C = shift @ARGV) || ($opt_C = ""); +my $configfile = $opt_C if ($opt_C); +usage("Unable to read config file $configfile\n") if ($configfile) && (! -r $configfile); + +if ($opt_t && $opt_t =~ /^([0-9]+)$/) { $TIMEOUT = $1; } + +# Execute the given command line and return anything it writes to STDOUT and/or +# STDERR. (This might be useful for other plugins, too, so it should possibly +# be moved to utils.pm.) +sub output_and_error_of { + local *CMD; + local $/ = undef; + my $pid = open CMD, "-|"; + if (defined($pid)) { + if ($pid) { + return <CMD>; + } else { + open STDERR, ">&STDOUT" and exec @_; + exit(1); + } + } + return undef; +} + +# split the type from the unit value +#Check $warn and $crit for type (%/M/G) and set up for tests +#P = Percent, K = KBytes +my $warn_type; +my $crit_type; + +if ($opt_w =~ /^([0-9]+)\%?$/) { + $warn = "$1"; + $warn_type = "P"; +} elsif ($opt_w =~ /^([0-9]+)k$/) { + $warn_type = "K"; + $warn = $1; +} elsif ($opt_w =~ /^([0-9]+)M$/) { + $warn_type = "K"; + $warn = $1 * 1024; +} elsif ($opt_w =~ /^([0-9]+)G$/) { + $warn_type = "K"; + $warn = $1 * 1048576; +} +if ($opt_c =~ /^([0-9]+)\%?$/) { + $crit = "$1"; + $crit_type = "P"; +} elsif ($opt_c =~ /^([0-9]+)k$/) { + $crit_type = "K"; + $crit = $1; +} elsif ($opt_c =~ /^([0-9]+)M$/) { + $crit_type = "K"; + $crit = $1 * 1024; +} elsif ($opt_c =~ /^([0-9]+)G$/) { + $crit_type = "K"; + $crit = $1 * 1048576; +} + +# check if both warning and critical are percentage or size +unless( ( $warn_type eq "P" && $crit_type eq "P" ) || ( $warn_type ne "P" && $crit_type ne "P" ) ){ + $opt_w =~ s/\%/\%\%/g; + $opt_c =~ s/\%/\%\%/g; + usage("Both warning and critical should be same type- warning: $opt_w critical: $opt_c \n"); +} + +# verify warning is less than critical +if ( $warn_type eq "K") { + unless ( $warn > $crit) { + usage("Disk size: warning ($opt_w) should be greater than critical ($opt_c) \n"); + } +}else{ + unless ( $warn < $crit) { + $opt_w =~ s/\%/\%\%/g; + $opt_c =~ s/\%/\%\%/g; + usage("Percentage: warning ($opt_w) should be less than critical ($opt_c) \n"); + } +} + +my $workgroup = $1 if (defined($opt_W) && $opt_W =~ /(.*)/); + +my $address = $1 if (defined($opt_a) && $opt_a =~ /(.*)/); + +# end of options checking + + +my $state = "OK"; +my $answer = undef; +my $res = undef; +my $perfdata = ""; +my @lines = undef; + +# Just in case of problems, let's not hang the monitoring system +$SIG{'ALRM'} = sub { + print "No Answer from Client\n"; + $SIG{'INT'} = 'IGNORE'; + kill(-2, $$); + exit $ERRORS{"UNKNOWN"}; +}; +alarm($TIMEOUT); + +# Execute a "du" on the share using smbclient program +# get the results into $res +my @cmd = ( + $smbclient, + "//$host/$share", + "-U", "$user%$pass", + defined($workgroup) ? ("-W", $workgroup) : (), + defined($address) ? ("-I", $address) : (), + defined($opt_P) ? ("-p", $opt_P) : (), + defined($configfile) ? ("-s", $configfile) : (), + "-c", "du" +); + +print join(" ", @cmd) . "\n" if ($verbose); +$res = output_and_error_of(@cmd) or exit $ERRORS{"UNKNOWN"}; + +#Turn off alarm +alarm(0); + +#Split $res into an array of lines +@lines = split /\n/, $res; + +#Get the last line into $_ +$_ = $lines[$#lines-1]; +#print "$_\n"; + +#Process the last line to get free space. +#If line does not match required regexp, return an UNKNOWN error +if (/\s*(\d*) blocks of size (\d*)\. (\d*) blocks available/) { + + my ($avail_bytes) = $3 * $2; + my ($total_bytes) = $1 * $2; + my ($occupied_bytes) = $1 * $2 - $avail_bytes; + my ($avail) = $avail_bytes/1024; + my ($capper); + if ($1!=0) { $capper = int(($3/$1)*100) } else { $capper=100 }; + my ($mountpt) = "\\\\$host\\$share"; + + # TODO : why is the kB the standard unit for args ? + my ($warn_bytes) = $total_bytes - $warn * 1024; + if ($warn_type eq "P") { + $warn_bytes = $warn * $1 * $2 / 100; + } + my ($crit_bytes) = $total_bytes - $crit * 1024; + if ($crit_type eq "P") { + $crit_bytes = $crit * $1 * $2 / 100; + } + + + if (int($avail / 1024) > 0) { + $avail = int($avail / 1024); + if (int($avail /1024) > 0) { + $avail = (int(($avail / 1024)*100))/100; + $avail = $avail ."G"; + } else { + $avail = $avail ."M"; + } + } else { + $avail = $avail ."K"; + } + +#print ":$warn:$warn_type:\n"; +#print ":$crit:$crit_type:\n"; +#print ":$avail:$avail_bytes:$capper:$mountpt:\n"; + $perfdata = "'" . $share . "'=" . $occupied_bytes . 'B;' + . $warn_bytes . ';' + . $crit_bytes . ';' + . '0;' + . $total_bytes; + + if ($occupied_bytes > $crit_bytes) { + $state = "CRITICAL"; + $answer = "CRITICAL: Only $avail ($capper%) free on $mountpt"; + } elsif ( $occupied_bytes > $warn_bytes ) { + $state = "WARNING"; + $answer = "WARNING: Only $avail ($capper%) free on $mountpt"; + } else { + $answer = "Disk ok - $avail ($capper%) free on $mountpt"; + } +} else { + $answer = "Result from smbclient not suitable"; + $state = "UNKNOWN"; + foreach (@lines) { + if (/(Access denied|NT_STATUS_LOGON_FAILURE|NT_STATUS_ACCESS_DENIED)/) { + $answer = "Access Denied"; + $state = "CRITICAL"; + last; + } + if (/(Unknown host \w*|Connection.*failed)/) { + $answer = "$1"; + $state = "CRITICAL"; + last; + } + if (/(You specified an invalid share name|NT_STATUS_BAD_NETWORK_NAME)/) { + $answer = "Invalid share name \\\\$host\\$share"; + $state = "CRITICAL"; + last; + } + } +} + + +print $answer; +print " | " . $perfdata if ($perfdata); +print "\n"; +print "$state\n" if ($verbose); +exit $ERRORS{$state}; + +sub print_usage () { + print "Usage: $PROGNAME -H <host> -s <share> -u <user> -p <password> + -w <warn> -c <crit> [-W <workgroup>] [-P <port>] [-a <IP>] [-t timeout] + [-C <configfile>]\n"; +} + +sub print_help () { + print_revision($PROGNAME,'@NP_VERSION@'); + print "Copyright (c) 2000 Michael Anthon/Karl DeBisschop + +Perl Check SMB Disk plugin for monitoring + +"; + print_usage(); + print " +-H, --hostname=HOST + NetBIOS name of the server +-s, --share=STRING + Share name to be tested +-W, --workgroup=STRING + Workgroup or Domain used (Defaults to \"WORKGROUP\") +-a, --address=IP + IP-address of HOST (only necessary if HOST is in another network) +-u, --user=STRING + Username to log in to server. (Defaults to \"guest\") +-p, --password=STRING + Password to log in to server. (Defaults to an empty password) +-w, --warning=INTEGER or INTEGER[kMG] + Percent of used space at which a warning will be generated (Default: 85%) +-c, --critical=INTEGER or INTEGER[kMG] + Percent of used space at which a critical will be generated (Defaults: 95%) +-t, --timeout=INTEGER + Seconds before connection times out (Default: 15) +-P, --port=INTEGER + Port to be used to connect to. Some Windows boxes use 139, others 445 (Defaults to smbclient default) +-C, --configfile=STRING + Path to configfile which should be used by smbclient (Defaults to smb.conf of your smb installation) + + If thresholds are followed by either a k, M, or G then check to see if that + much disk space is available (kilobytes, Megabytes, Gigabytes) + + Warning percentage should be less than critical + Warning (remaining) disk space should be greater than critical. + +"; + support(); +} |