307 lines
7.9 KiB
Perl
307 lines
7.9 KiB
Perl
# SNMP::Info::Layer3::Cumulus
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# $Id$
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#
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# Copyright (c) 2018 Bill Fenner and Oliver Gorwits
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the University of California, Santa Cruz nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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package SNMP::Info::Layer3::Cumulus;
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use strict;
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use Exporter;
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use SNMP::Info::Layer3;
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use SNMP::Info::LLDP;
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use SNMP::Info::IEEE802dot3ad 'agg_ports_lag';
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@SNMP::Info::Layer3::Cumulus::ISA = qw/
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SNMP::Info::IEEE802dot3ad
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SNMP::Info::LLDP
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SNMP::Info::Layer3
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Exporter
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/;
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@SNMP::Info::Layer3::Cumulus::EXPORT_OK = qw/ agg_ports /;
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use vars qw/$VERSION %GLOBALS %MIBS %FUNCS %MUNGE/;
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$VERSION = '3.66';
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%MIBS = (
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%SNMP::Info::Layer3::MIBS,
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%SNMP::Info::LLDP::MIBS,
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%SNMP::Info::IEEE802dot3ad::MIBS,
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'UCD-SNMP-MIB' => 'versionTag',
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'NET-SNMP-TC' => 'netSnmpAliasDomain',
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'HOST-RESOURCES-MIB' => 'hrSystem',
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);
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%GLOBALS = (
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%SNMP::Info::Layer3::GLOBALS,
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%SNMP::Info::LLDP::GLOBALS,
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'netsnmp_vers' => 'versionTag',
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'hrSystemUptime' => 'hrSystemUptime',
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'chassis' => 'entPhysicalDescr.1',
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);
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%FUNCS = (
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%SNMP::Info::Layer3::FUNCS,
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%SNMP::Info::LLDP::FUNCS,
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%SNMP::Info::IEEE802dot3ad::FUNCS,
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);
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%MUNGE = (
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%SNMP::Info::Layer3::MUNGE,
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%SNMP::Info::LLDP::MUNGE,
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%SNMP::Info::IEEE802dot3ad::MUNGE,
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);
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sub vendor { return 'Cumulus Networks' }
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sub os { return 'cumulus' }
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sub os_ver {
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my $netsnmp = shift;
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my $descr = $netsnmp->description();
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# STRING: "Cumulus Linux version 3.5.1 running on innotek GmbH VirtualBox"
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return $1 if ( $descr =~ /^Cumulus Linux.+(\d+\.\d+\.\d+)\s/ );
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return;
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}
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sub model {
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my $netsnmp = shift;
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my $chassis = $netsnmp->chassis();
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# STRING: "Cumulus Networks VX Chassis"
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return $1 if ( $chassis =~ /^Cumulus Networks\s+(.+)/ );
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return $netsnmp->SUPER::model();
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}
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# sysUptime gives us the time since the SNMP daemon has restarted,
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# so return the system uptime since that's probably what the user
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# wants. (Caution: this could cause trouble if using
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# sysUptime-based discontinuity timers or other TimeStamp
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# objects.
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sub uptime {
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my $netsnmp = shift;
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my $uptime;
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$uptime = $netsnmp->hrSystemUptime();
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return $uptime if defined $uptime;
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return $netsnmp->SUPER::uptime();
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}
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# ifDescr is the same for all interfaces in a class, but the ifName is
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# unique, so let's use that for port name. If all else fails,
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# concatentate ifDesc and ifIndex.
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# (code from SNMP/Info/Layer2/Netgear.pm)
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sub interfaces {
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my $netsnmp = shift;
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my $partial = shift;
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my $interfaces = $netsnmp->i_index($partial) || {};
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my $i_descr = $netsnmp->i_description($partial) || {};
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my $i_name = $netsnmp->i_name($partial);
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my $i_isset = ();
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# Replace the description with the ifName field, if set
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foreach my $iid ( keys %$i_name ) {
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my $name = $i_name->{$iid};
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next unless defined $name;
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if (defined $name and $name !~ /^\s*$/) {
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$interfaces->{$iid} = $name;
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$i_isset->{$iid} = 1;
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}
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}
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# Replace the Index with the ifDescr field, appended with index
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# number, to deal with devices with non-unique ifDescr.
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foreach my $iid ( keys %$i_descr ) {
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my $port = $i_descr->{$iid} . '-' . $iid;
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next unless defined $port;
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next if (defined $i_isset->{$iid} and $i_isset->{$iid} == 1);
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$interfaces->{$iid} = $port;
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}
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return $interfaces;
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}
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sub i_ignore {
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my $l3 = shift;
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my $partial = shift;
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my $interfaces = $l3->interfaces($partial) || {};
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my %i_ignore;
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foreach my $if ( keys %$interfaces ) {
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# vlan1@br0 or peerlink.4094@peerlink
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if ( $interfaces->{$if} =~ /@/i ) {
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$i_ignore{$if}++;
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}
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}
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return \%i_ignore;
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}
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sub agg_ports { return agg_ports_lag(@_) }
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1;
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__END__
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=head1 NAME
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SNMP::Info::Layer3::Cumulus - SNMP Interface to Cumulus Networks Devices
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=head1 AUTHORS
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Oliver Gorwits - based on Layer3::NetSNMP implementation
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=head1 SYNOPSIS
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# Let SNMP::Info determine the correct subclass for you.
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my $cumulus = new SNMP::Info(
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AutoSpecify => 1,
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Debug => 1,
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DestHost => 'myrouter',
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Community => 'public',
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Version => 2
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)
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or die "Can't connect to DestHost.\n";
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my $class = $cumulus->class();
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print "SNMP::Info determined this device to fall under subclass : $class\n";
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=head1 DESCRIPTION
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Subclass for Cumulus Networks devices
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=head2 Inherited Classes
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=over
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=item SNMP::Info::Layer3
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=back
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=head2 Required MIBs
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=over
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=item F<UCD-SNMP-MIB>
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=item F<NET-SNMP-TC>
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=item F<HOST-RESOURCES-MIB>
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=item Inherited Classes' MIBs
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See L<SNMP::Info::Layer3> for its own MIB requirements.
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See L<SNMP::Info::LLDP> for its own MIB requirements.
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See L<SNMP::Info::IEEE802dot3ad> for its own MIB requirements.
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=back
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=head1 GLOBALS
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These are methods that return scalar value from SNMP
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=over
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=item $cumulus->vendor()
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Returns 'Cumulus Networks'.
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=item $cumulus->os()
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Returns 'cumulus'.
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=item $cumulus->os_ver()
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Returns the software version extracted from C<sysDescr>.
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=item $cumulus->uptime()
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Returns the system uptime instead of the agent uptime.
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NOTE: discontinuity timers and other Time Stamp based objects
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are based on agent uptime, so use orig_uptime().
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=item $l3->model()
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Returns the chassis type.
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=back
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=head2 Globals imported from SNMP::Info::Layer3
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See documentation in L<SNMP::Info::Layer3> for details.
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=head2 Globals imported from SNMP::Info::LLDP
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See documentation in L<SNMP::Info::LLDP> for details.
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=head2 Globals imported from SNMP::Info::IEEE802dot3ad
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See documentation in L<SNMP::Info::IEEE802dot3ad> for details.
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=head1 TABLE ENTRIES
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These are methods that return tables of information in the form of a reference
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to a hash.
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=head2 Overrides
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=over
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=item $cumulus->interfaces()
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Uses the i_name() field.
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=item $cumulus->i_ignore()
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Ignores interfaces with an "@" in them.
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=item C<agg_ports>
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Returns a HASH reference mapping from slave to master port for each member of
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a port bundle on the device. Keys are ifIndex of the slave ports, Values are
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ifIndex of the corresponding master ports.
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=back
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=head2 Table Methods imported from SNMP::Info::Layer3
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See documentation in L<SNMP::Info::Layer3> for details.
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=head2 Table Methods imported from SNMP::Info::LLDP
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See documentation in L<SNMP::Info::LLDP> for details.
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=head2 Table Methods imported from SNMP::Info::IEEE802dot3ad
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See documentation in L<SNMP::Info::IEEE802dot3ad> for details.
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=cut
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