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*** check_ifoperstatus.orig 2005-08-19 17:45:13.000000000 -0400
--- check_ifoperstatus 2005-08-23 16:32:12.000000000 -0400
*************** my $community = "public";
*** 64,78 ****
my $maxmsgsize = 1472 ; # Net::SNMP default is 1472
my ($seclevel, $authproto, $secname, $authpass, $privpass, $auth, $priv, $context);
my $port = 161;
- my @snmpoids;
my $sysUptime = '1.3.6.1.2.1.1.3.0';
my $snmpIfDescr = '1.3.6.1.2.1.2.2.1.2';
my $snmpIfAdminStatus = '1.3.6.1.2.1.2.2.1.7';
my $snmpIfOperStatus = '1.3.6.1.2.1.2.2.1.8';
my $snmpIfName = '1.3.6.1.2.1.31.1.1.1.1';
my $snmpIfLastChange = '1.3.6.1.2.1.2.2.1.9';
my $snmpIfAlias = '1.3.6.1.2.1.31.1.1.1.18';
my $snmpLocIfDescr = '1.3.6.1.4.1.9.2.2.1.1.28';
my $hostname;
my $ifName;
my $session;
--- 64,84 ----
my $maxmsgsize = 1472 ; # Net::SNMP default is 1472
my ($seclevel, $authproto, $secname, $authpass, $privpass, $auth, $priv, $context);
my $port = 161;
my $sysUptime = '1.3.6.1.2.1.1.3.0';
my $snmpIfDescr = '1.3.6.1.2.1.2.2.1.2';
+ my $snmpIfDescrOid = $snmpIfDescr;
my $snmpIfAdminStatus = '1.3.6.1.2.1.2.2.1.7';
+ my $snmpIfAdminStatusOid = $snmpIfAdminStatus;
my $snmpIfOperStatus = '1.3.6.1.2.1.2.2.1.8';
+ my $snmpIfOperStatusOid = $snmpIfOperStatus;
my $snmpIfName = '1.3.6.1.2.1.31.1.1.1.1';
+ my $snmpIfNameOid = $snmpIfName;
my $snmpIfLastChange = '1.3.6.1.2.1.2.2.1.9';
+ my $snmpIfLastChangeOid = $snmpIfLastChange;
my $snmpIfAlias = '1.3.6.1.2.1.31.1.1.1.18';
+ my $snmpIfAliasOid = $snmpIfAlias;
my $snmpLocIfDescr = '1.3.6.1.4.1.9.2.2.1.1.28';
+ my $snmpLocIfDescrOid = $snmpLocIfDescr;
my $hostname;
my $ifName;
my $session;
*************** my $lastc;
*** 88,93 ****
--- 94,101 ----
my $dormantWarn;
my $adminWarn;
my $name;
+ my $cacheFileChecked = 0;
+ my $cacheFileName = '/tmp/interface_cache.db';
### Validate Arguments
*************** alarm($timeout);
*** 106,114 ****
## map ifdescr to ifindex - should look at being able to cache this value
if (defined $ifdescr) {
- # escape "/" in ifdescr - very common in the Cisco world
- $ifdescr =~ s/\//\\\//g;
-
$status=fetch_ifdescr(); # if using on device with large number of interfaces
# recommend use of SNMP v2 (get-bulk)
if ($status==0) {
--- 114,119 ----
*************** if (defined $ifdescr) {
*** 122,155 ****
## Main function
! $snmpIfAdminStatus = $snmpIfAdminStatus . "." . $snmpkey;
! $snmpIfOperStatus = $snmpIfOperStatus . "." . $snmpkey;
! $snmpIfDescr = $snmpIfDescr . "." . $snmpkey;
! $snmpIfName = $snmpIfName . "." . $snmpkey ;
! $snmpIfAlias = $snmpIfAlias . "." . $snmpkey ;
!
! push(@snmpoids,$snmpIfAdminStatus);
! push(@snmpoids,$snmpIfOperStatus);
! push(@snmpoids,$snmpIfDescr);
! push(@snmpoids,$snmpIfName) if (defined $ifXTable) ;
! push(@snmpoids,$snmpIfAlias) if (defined $ifXTable) ;
! if (!defined($response = $session->get_request(@snmpoids))) {
! $answer=$session->error;
! $session->close;
! $state = 'WARNING';
! print ("$state: SNMP error: $answer\n");
! exit $ERRORS{$state};
}
- $answer = sprintf("host '%s', %s(%s) is %s\n",
- $hostname,
- $response->{$snmpIfDescr},
- $snmpkey,
- $ifOperStatus{$response->{$snmpIfOperStatus}}
- );
-
-
## Check to see if ifName match is requested and it matches - exit if no match
## not the interface we want to monitor
if ( defined $name && not ($response->{$snmpIfName} eq $name) ) {
--- 127,145 ----
## Main function
! # moved fetching of information to function to allow it to be recalled if
! # bad snmpkey in cache file
! fetch_data();
! # If using ifDescr check to make sure database didn't return
! # stale snmpkey
! if (defined $ifdescr) {
! if ($response->{$snmpIfDescr} ne $ifdescr) {
! fetch_ifdescr();
! fetch_data();
! }
}
## Check to see if ifName match is requested and it matches - exit if no match
## not the interface we want to monitor
if ( defined $name && not ($response->{$snmpIfName} eq $name) ) {
*************** exit $ERRORS{$state};
*** 225,232 ****
### subroutines
sub fetch_ifdescr {
! if (!defined ($response = $session->get_table($snmpIfDescr))) {
$answer=$session->error;
$session->close;
$state = 'CRITICAL';
--- 215,270 ----
### subroutines
+ sub fetch_data {
+ my @snmpoids;
+
+ $snmpIfAdminStatus = $snmpIfAdminStatusOid . "." . $snmpkey;
+ $snmpIfOperStatus = $snmpIfOperStatusOid . "." . $snmpkey;
+ $snmpIfDescr = $snmpIfDescrOid . "." . $snmpkey;
+ $snmpIfName = $snmpIfNameOid . "." . $snmpkey ;
+ $snmpIfAlias = $snmpIfAliasOid . "." . $snmpkey ;
+
+ push(@snmpoids,$snmpIfAdminStatus);
+ push(@snmpoids,$snmpIfOperStatus);
+ push(@snmpoids,$snmpIfDescr);
+ push(@snmpoids,$snmpIfName) if (defined $ifXTable) ;
+ push(@snmpoids,$snmpIfAlias) if (defined $ifXTable) ;
+
+ if (!defined($response = $session->get_request(@snmpoids))) {
+ $answer=$session->error;
+ $session->close;
+ $state = 'WARNING';
+ print ("$state: SNMP error: $answer\n");
+ exit $ERRORS{$state};
+ }
+
+ $answer = sprintf("host '%s', %s(%s) is %s\n",
+ $hostname,
+ $response->{$snmpIfDescr},
+ $snmpkey,
+ $ifOperStatus{$response->{$snmpIfOperStatus}}
+ );
+ }
+
sub fetch_ifdescr {
! my %intcache;
! dbmopen %intcache, $cacheFileName, 0600 or exit $ERRORS{'CRITICAL'};
!
! # check if we already checked cache file
! if (!$cacheFileChecked) {
! # check cache file for interface information, if exists use
! # if not then update cache file for the entire host looking
! # for this interface
!
! $cacheFileChecked = 1;
! if (exists $intcache{$hostname.$ifdescr}) {
! $snmpkey = $intcache{$hostname.$ifdescr};
! dbmclose %intcache;
! return $snmpkey;
! }
! }
!
! if (!defined ($response = $session->get_table($snmpIfDescrOid))) {
$answer=$session->error;
$session->close;
$state = 'CRITICAL';
*************** sub fetch_ifdescr {
*** 235,246 ****
exit $ERRORS{$state};
}
foreach $key ( keys %{$response}) {
if ($response->{$key} =~ /^$ifdescr$/) {
! $key =~ /.*\.(\d+)$/;
! $snmpkey = $1;
#print "$ifdescr = $key / $snmpkey \n"; #debug
}
}
unless (defined $snmpkey) {
$session->close;
--- 273,297 ----
exit $ERRORS{$state};
}
+ # snmpwalk succesful, empty cache file for this host
+ # TODO: empty cache file for host
+
+ # escape "/" in ifdescr - very common in the Cisco world
+ $ifdescr =~ s/\//\\\//g;
+
foreach $key ( keys %{$response}) {
+ $key =~ /.*\.(\d+)$/;
+ my $cursnmpkey = $1;
+
if ($response->{$key} =~ /^$ifdescr$/) {
! #$key =~ /.*\.(\d+)$/;
! #$snmpkey = $1;
! $snmpkey = $cursnmpkey;
#print "$ifdescr = $key / $snmpkey \n"; #debug
}
+
+ # for each interface update cache file
+ $intcache{$hostname.$response->{$key}} = $cursnmpkey;
}
unless (defined $snmpkey) {
$session->close;
*************** sub fetch_ifdescr {
*** 248,254 ****
printf "$state: Could not match $ifdescr on $hostname\n";
exit $ERRORS{$state};
}
!
return $snmpkey;
}
--- 299,306 ----
printf "$state: Could not match $ifdescr on $hostname\n";
exit $ERRORS{$state};
}
!
! dbmclose %intcache;
return $snmpkey;
}
|
