1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
#!/usr/bin/perl -wT
#
# Copyright (c) 2000 Hugo Gayosso
#
# Description:
# Nagios plug-in that monitors the resources on an HP-UX machine
# by querying the SNMP daemon
#
# License: General Public License (GPL)
# http://www.gnu.org/copyleft/gpl.txt
#
# ChangeLog
#
# Requirements: Perl 5.005 or higher
# Variable initialization
$ENV{'PATH'}="";
$ENV{'ENV'}="";
$ENV{'BASH_ENV'}="";
if (-e "/usr/bin/snmpwalk") {
$snmpwalk = "/usr/bin/snmpwalk";
} elsif (-e "/usr/local/bin/snmpwalk") {
$snmpwalk = "/usr/local/bin/snmpwalk";
}
# HP-UX SNMP OIDs
$filesystemID1_OID = ".1.3.6.1.4.1.11.2.3.1.2.2.1.1";
$mounted_OID = ".1.3.6.1.4.1.11.2.3.1.2.2.1.3";
$totalspace_OID = ".1.3.6.1.4.1.11.2.3.1.2.2.1.4";
$freespace_OID = ".1.3.6.1.4.1.11.2.3.1.2.2.1.6";
$path_OID = ".1.3.6.1.4.1.11.2.3.1.2.2.1.10";
$cpu_5min_OID = ".1.3.6.1.4.1.11.2.3.1.1.4";
use Getopt::Long;
GetOptions( "check-filesystem" => \$chk_fs,
"show-filesystems" => \$show_fs,
"check-filesystemID" => \$chk_fsid,
"check-cpu" => \$chk_cpu,
"host=s" => \$target_host,
"community=s" => \$target_community,
"filesystemID1=i" => \$fsid1_opt,
"filesystem=s" => \$fs_opt,
"protocol:s" => \$proto_opt,
"warning=i" => \$warning_opt,
"critical=i" => \$critical_opt);
$proto_opt = 1
unless $proto_opt == 1 ||
$proto_opt == '2c' ||
$proto_opt == 3;
if ($chk_fs) {
walk_data($snmpwalk, $target_host, $target_community, $mounted_OID,$proto_opt );
walk_data($snmpwalk, $target_host, $target_community, $totalspace_OID,$proto_opt );
walk_data($snmpwalk, $target_host, $target_community, $freespace_OID,$proto_opt ); check_filesystem($fs_opt, $warning_opt, $critical_opt);
} elsif ($show_fs) {
walk_data($snmpwalk, $target_host, $target_community, $filesystemID1_OID,$proto_opt);
walk_data($snmpwalk, $target_host, $target_community, $mounted_OID,$proto_opt );
walk_data($snmpwalk, $target_host, $target_community, $path_OID,$proto_opt);
show_filesystem();
} elsif ($chk_fsid){
$totalspace_fsID_OID = "$totalspace_OID.$fsid1_opt";
$freespace_fsID_OID = "$freespace_OID.$fsid1_opt";
walk_data($snmpwalk, $target_host, $target_community, $totalspace_fsID_OID,$proto_opt);
walk_data($snmpwalk, $target_host, $target_community, $freespace_fsID_OID,$proto_opt);
check_filesystemID1($fsid1_opt, $warning_opt, $critical_opt);
} elsif ($chk_cpu) {
get_cpu_load($snmpwalk, $target_host, $target_community, $cpu_5min_OID,$proto_opt);
check_cpu_5min($cpu, $warning_opt, $critical_opt);
} else {
print "\n\nUsage:\n";
print "Checking 5-min CPU Load:\n";
print " $0 --check-cpu -warning <threshold> --critical <threshold> --host <yourhost> --community <SNMP community> --protocol <SNMP version [1|2c|3]>\n\n";
print "Checking local filesystem mounted on a host:\n";
print " $0 --show-filesystems --host <hostname> --community <SNMP community> --protocol <SNMP version [1|2c|3]>\n\n";
print "Checking by filesystem name:\n";
print " $0 --check-filesystem --filesystem </dev/vg00/lvol1> --warning <% used space> --critical <% used space> --host <hostname> --community <SNMP community> --protocol <SNMP version [1|2c|3]>\n\n";
print "Checking by filesystem ID:\n";
print " $0 --check-filesystemID --filesystemID <filesystemID1> --warning <% used space> --critical <% used space> --host <hostname> --community <SNMP community> --protocol <SNMP version [1|2c|3]>\n\n";
}
sub get_cpu_load {
my ($snmpwalk, $target_host, $target_community, $OID,$vers) = @_;
die "cannot fork: $!" unless defined($pid = open(SNMPWALK, "-|"));
if ($pid) { # parent
while (<SNMPWALK>) {
my @snmpdata = split(/:/,$_);
$cpu = $snmpdata[1]/100;
}
close(SNMPWALK) or warn "kid exited $?";
} else { # child
exec($snmpwalk,'-c',$target_community,'-v',$vers,$target_host,$OID) or die "can't exec program: $!";
}
}
sub walk_data {
#This function queries the SNMP daemon for the specific OID
my ($snmpwalk, $target_host, $target_community, $OID,$vers) = @_;
die "cannot fork: $!" unless defined($pid = open(SNMPWALK, "-|"));
if ($pid) { # parent
while (<SNMPWALK>) {
$output = $_;
sort_walk_data($output);
}
close(SNMPWALK) or warn "kid exited $?";
} else { # child
exec($snmpwalk,'-c',$target_community,'-v',$vers,$target_host,$OID) or die "can't exec program: $!";
}
}
sub sort_walk_data {
my ($snmp_data) = @_;
@fields = split(/\./,$snmp_data);
$item = $fields[8];
$filesystemID1 = $fields[9];
@fields2 = split(/=/,$fields[10]);
# $filesystemID2 = $fields2[0];
$value = $fields2[1];
chomp($value);
if ($value =~ /"/) {
@fields3 = split(/"/,$value);
$value = $fields3[1];
}
if ($item == 3) {
$mounted{$filesystemID1} = "$value";
} elsif ($item == 4) {
$totalspace{$filesystemID1} = "$value";
} elsif ($item == 6) {
$freespace{$filesystemID1} = "$value";
} elsif ($item == 10) {
$filesystempath{$filesystemID1} = "$value";
}
}
sub show_filesystem {
print "\n\nfilesystemID1\tmounted filesystem\tfilesystem path\n";
foreach $element (keys %mounted) {
print "$element\t$mounted{$element}\t\t$filesystempath{$element}\n";
}
print "\n\n";
}
sub check_filesystem {
# Warning = percentage of used space >= $warning and < $critical
# Critical = percentage of used space > $warning and >= $critical
# OK = percentage of used space < $warning and < $critical
my ($mounted_filesystem, $warning, $critical) = @_;
foreach $element (keys %mounted) {
if ($mounted{$element} eq $mounted_filesystem) {
my $warning_result = $totalspace{$element}*(100-$warning)/100;
my $critical_result = $totalspace{$element}*(100-$critical)/100;
my $result_percent = $freespace{$element}*100/$totalspace{$element};
if (($freespace{$element} <= $warning_result) && ($freespace{$element} > $critical_result)) {
printf "Only %d M (%d%s) free\n",$freespace{$element}/1024,$result_percent,"%";
exit 1;
} elsif ($freespace{$element} <= $critical_result) {
printf "Only %d M (%d%s) free\n",$freespace{$element}/1024,$result_percent,"%";
exit 2;
} else {
printf "Disk ok - %d M (%d%s) free\n",$freespace{$element}/1024,$result_percent,"%";
exit 0;
}
}
}
print "$mounted_filesystem doesn't exist in $target_host\n\n";
exit -1;
}
sub check_filesystemID1{
# Warning = percentage of used space >= $warning and < $critical
# Critical = percentage of used space > $warning and >= $critical
# OK = percentage of used space < $warning and < $critical
my ($fsid1, $warning, $critical) = @_;
foreach $element (keys %totalspace) {
if ($element eq $fsid1) {
my $warning_result = $totalspace{$element}*(100-$warning)/100;
my $critical_result = $totalspace{$element}*(100-$critical)/100;
my $result_percent = $freespace{$element}*100/$totalspace{$element};
if (($freespace{$element} <= $warning_result) && ($freespace{$element} >= $critical_result)) {
printf "Only %d M (%d%s) free\n",$freespace{$element}/1024,$result_percent,"%";
exit 1;
} elsif ($freespace{$element} <= $critical_result) {
printf "Only %d M (%d%s) free\n",$freespace{$element}/1024,$result_percent,"%";
exit 2;
} else {
printf "Disk ok - %d M (%d%s) free\n",$freespace{$element}/1024,$result_percent,"%";
exit 0;
}
}
}
print "$fsid1 doesn't exist in $target_host\n\n";
exit -1;
}
sub check_cpu_5min {
my ($cpu, $warn, $crit) = @_;
if ($cpu >= $crit) {
print "Critical- 5-min load: $cpu\n";
exit 2;
} elsif ($cpu >= $warn) {
print "Warning - 5-min load: $cpu\n";
exit 1;
} else {
print "Load ok - 5-min load: $cpu\n";
exit 0;
}
}
|