513 lines
12 KiB
Perl
513 lines
12 KiB
Perl
# SNMP::Info::Layer2::Aerohive
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#
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# Copyright (c) 2018 Eric Miller
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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::Layer2::Aerohive;
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use strict;
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use warnings;
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use Exporter;
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use SNMP::Info::Layer2;
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@SNMP::Info::Layer2::Aerohive::ISA = qw/SNMP::Info::Layer2 Exporter/;
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@SNMP::Info::Layer2::Aerohive::EXPORT_OK = qw//;
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our ($VERSION, %FUNCS, %GLOBALS, %MIBS, %MUNGE);
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$VERSION = '3.79';
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%MIBS = (
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%SNMP::Info::Layer2::MIBS,
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'AH-SYSTEM-MIB' => 'ahSystemSerial',
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'AH-INTERFACE-MIB' => 'ahSSIDName',
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);
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%GLOBALS = (
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%SNMP::Info::Layer2::GLOBALS,
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# AH-SYSTEM-MIB
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'serial' => 'ahSystemSerial',
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'os_bin' => 'ahFirmwareVersion',
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# not documented in the most recent mib,
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# but this is the base mac for the device
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'ah_mac' => '.1.3.6.1.4.1.26928.1.3.2.0',
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);
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%FUNCS = (
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%SNMP::Info::Layer2::FUNCS,
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# AH-INTERFACE-MIB::ahRadioAttributeTable
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'i_80211channel' => 'ahRadioChannel',
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'dot11_cur_tx_pwr_mw' => 'ahRadioTxPower',
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# AH-INTERFACE-MIB::ahXIfTable
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'ah_i_ssidlist' => 'ahSSIDName',
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# AH-INTERFACE-MIB::ahAssociationTable
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'cd11_txrate' => 'ahClientLastTxRate',
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'cd11_uptime' => 'ahClientLinkUptime',
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'cd11_sigstrength' => 'ahClientRSSI',
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'cd11_rxpkt' => 'ahClientRxDataFrames',
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'cd11_txpkt' => 'ahClientTxDataFrames',
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'cd11_rxbyte' => 'ahClientRxDataOctets',
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'cd11_txbyte' => 'ahClientTxDataOctets',
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'cd11_ssid' => 'ahClientSSID',
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'ah_c_vlan' => 'ahClientVLAN',
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'ah_c_ip' => 'ahClientIP',
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);
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%MUNGE
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= ( %SNMP::Info::Layer2::MUNGE, 'at_paddr' => \&SNMP::Info::munge_mac, );
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# hiveos does not have sysServices
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sub layers {
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return '00000111';
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}
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sub vendor {
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return 'aerohive';
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}
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sub os {
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return 'hiveos';
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}
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sub serial {
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my $aerohive = shift;
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return $aerohive->ahSystemSerial()
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|| $aerohive->SUPER::serial();
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}
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sub os_ver {
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my $aerohive = shift;
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my $descr = $aerohive->description();
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if ( defined ($descr) && $descr =~ m/\bHiveOS\s(\d+\.\w+)\b/ix ) {
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return $1;
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}
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return;
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}
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sub mac {
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my $aerohive = shift;
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my $ahmac = $aerohive->ah_mac();
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# newer hiveos version just return the mac address
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if (defined $ahmac) {
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# aerohive has a 0000:0000:0000 mac format by default,
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# change to 00:00:00:00:00:00
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$ahmac =~ s/(..)(..:?)/$1:$2/g;
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return $ahmac;
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}
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my @macs;
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my $macs = $aerohive->i_mac();
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foreach my $iid (keys %$macs) {
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if (defined $macs->{$iid}) {
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push( @macs, $macs->{$iid} );
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}
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@macs = sort(@macs);
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}
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return $macs[0];
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}
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sub model {
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my $aerohive = shift;
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my $descr = $aerohive->description();
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if ( defined ($descr) && $descr =~ m/\b(?:Hive|)(AP\d+)\b/ix ) {
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return $1;
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}
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return;
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}
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sub i_ssidlist {
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my $aerohive = shift;
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my $partial = shift;
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my $ssids = $aerohive->ah_i_ssidlist($partial) || {};
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my %i_ssidlist;
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foreach my $iid ( keys %$ssids ) {
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my $ssid = $ssids->{$iid};
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next if $ssid =~ /N\/A/i;
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$i_ssidlist{$iid} = $ssid;
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}
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return \%i_ssidlist;
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}
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sub i_ssidmac {
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my $aerohive = shift;
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my $partial = shift;
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my $ssids = $aerohive->i_ssidlist($partial) || {};
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my $macs = $aerohive->i_mac($partial) || {};
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my %i_ssidmac;
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foreach my $iid ( keys %$ssids ) {
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my $mac = $macs->{$iid};
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next unless $mac;
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$i_ssidmac{$iid} = $mac;
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}
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return \%i_ssidmac;
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}
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# Break up the ahAssociationEntry INDEX into ifIndex and MAC Address.
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sub _ah_association_index {
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my $idx = shift;
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my @values = split( /\./, $idx );
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my $ifindex = shift(@values);
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my $length = shift(@values);
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return ( $ifindex, join( ':', map { sprintf "%02x", $_ } @values ) );
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}
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sub cd11_port {
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my $aerohive = shift;
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my $cd11_txrate = $aerohive->cd11_txrate();
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my $interfaces = $aerohive->interfaces();
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my %ret;
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foreach ( keys %$cd11_txrate ) {
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my ( $ifindex, $mac ) = _ah_association_index($_);
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$ret{$_} = $interfaces->{$ifindex};
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}
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return \%ret;
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}
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sub cd11_mac {
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my $aerohive = shift;
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my $cd11_txrate = $aerohive->cd11_txrate();
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my %ret;
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foreach ( keys %$cd11_txrate ) {
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my ( $ifindex, $mac ) = _ah_association_index($_);
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$ret{$_} = $mac;
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}
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return \%ret;
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}
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# Does not support the standard Bridge MIB
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sub bp_index {
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my $aerohive = shift;
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my $partial = shift;
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# somewhere caching is doing something strange, without load_
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# netdisco can't find bp_index mappings & will not registerer
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# any clients. netdisco/netdisco#496
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my $i_index = $aerohive->load_i_index($partial) || {};
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my %bp_index;
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foreach my $iid ( keys %$i_index ) {
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my $index = $i_index->{$iid};
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next unless defined $index;
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$bp_index{$index} = $iid;
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}
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return \%bp_index;
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}
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sub qb_fw_port {
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my $aerohive = shift;
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my $partial = shift;
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my $txrate = $aerohive->cd11_txrate($partial) || {};
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my $qb_fw_port = {};
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foreach my $idx ( keys %$txrate ) {
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my ( $fdb_id, $mac ) = _ah_association_index($idx);
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$qb_fw_port->{$idx} = $fdb_id;
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}
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return $qb_fw_port;
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}
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sub qb_fw_mac {
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my $aerohive = shift;
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my $partial = shift;
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my $txrate = $aerohive->cd11_txrate($partial) || {};
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my $qb_fw_mac = {};
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foreach my $idx ( keys %$txrate ) {
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my ( $fdb_id, $mac ) = _ah_association_index($idx);
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$qb_fw_mac->{$idx} = $mac;
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}
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return $qb_fw_mac;
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}
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sub qb_fw_vlan {
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my $aerohive = shift;
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my $partial = shift;
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my $vlans = $aerohive->ah_c_vlan($partial) || {};
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my $qb_fw_vlan = {};
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foreach my $idx ( keys %$vlans ) {
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my $vlan = $vlans->{$idx};
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next unless defined $vlan;
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$qb_fw_vlan->{$idx} = $vlan;
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}
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return $qb_fw_vlan;
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}
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# arpnip:
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#
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# This is the AP snooping on the MAC->IP mappings.
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# Pretending this is arpnip data allows us to get MAC->IP
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# mappings even for stations that only communicate locally.
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sub at_paddr {
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my $aerohive = shift;
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my $txrate = $aerohive->cd11_txrate() || {};
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my $at_paddr = {};
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foreach my $idx ( keys %$txrate ) {
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my ( $fdb_id, $mac ) = _ah_association_index($idx);
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$at_paddr->{$idx} = $mac;
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}
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return $at_paddr;
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}
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sub at_netaddr {
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my $aerohive = shift;
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my $ips = $aerohive->ah_c_ip() || {};
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my $ret = {};
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foreach my $idx ( keys %$ips ) {
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next if ( $ips->{$idx} eq '0.0.0.0' );
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$ret->{$idx} = $ips->{$idx};
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}
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return $ret;
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}
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1;
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__END__
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=head1 NAME
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SNMP::Info::Layer2::Aerohive - SNMP Interface to Aerohive / Extreme
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access points
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=head1 AUTHOR
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Eric Miller
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=head1 SYNOPSIS
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# Let SNMP::Info determine the correct subclass for you.
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my $aerohive = new SNMP::Info(
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AutoSpecify => 1,
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Debug => 1,
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DestHost => 'myswitch',
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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 = $aerohive->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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Provides abstraction to the configuration information obtainable from an
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Aerohive / Extreme wireless access point through SNMP.
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=head2 Inherited Classes
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=over
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=item SNMP::Info::Layer2
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=back
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=head2 Required MIBs
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=over
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=item F<AH-SYSTEM-MIB>
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=item F<AH-INTERFACE-MIB>
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=back
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=head2 Inherited MIBs
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See L<SNMP::Info::Layer2/"Required MIBs"> for its MIB requirements.
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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 $aerohive->vendor()
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Returns 'aerohive'.
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=item $aerohive->os()
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Returns 'hiveos'.
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=item $aerohive->serial()
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Returns the serial number extracted from C<ahSystemSerial>.
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=item $aerohive->os_ver()
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Returns the OS version extracted from C<sysDescr>.
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=item $aerohive->os_bin()
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Returns the firmware version extracted from C<ahFirmwareVersion>.
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=item $aerohive->mac()
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Returns the base mac address of the aerohive unit from an undocumented
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snmp oid. if this oid is not available it will walk all interfaces and
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return the lowest numbered mac address.
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=item $aerohive->model()
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Returns the model extracted from C<sysDescr>.
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=back
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=head2 Overrides
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=over
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=item $aerohive->layers()
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Returns 00000111. Layer 2 and Layer 3 functionality through proprietary MIBs.
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=back
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=head2 Global Methods imported from SNMP::Info::Layer2
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See L<SNMP::Info::Layer2/"GLOBALS"> for details.
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=head1 TABLE METHODS
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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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=over
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=item $aerohive->i_ssidlist()
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Returns reference to hash. SSID's recognized by the radio interface.
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=item $aerohive->i_ssidmac()
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With the same keys as i_ssidlist, returns the Basic service set
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identification (BSSID), MAC address, the AP is using for the SSID.
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=item $aerohive->i_80211channel()
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Returns reference to hash. Current operating frequency channel of the radio
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interface.
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C<ahRadioChannel>
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=item $aerohive->dot11_cur_tx_pwr_mw()
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Returns reference to hash. Current transmit power, in milliwatts, of the
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radio interface.
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C<ahRadioTxPower>
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=item $aerohive->cd11_port()
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Returns radio interfaces.
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=item $aerohive->cd11_mac()
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Returns client radio interface MAC addresses.
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=back
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=head2 Overrides
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=over
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=item $aerohive->bp_index()
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Simulates bridge MIB by returning reference to a hash mapping i_index() to
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the interface iid.
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=item $aerohive->qb_fw_port()
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Returns reference to hash of forwarding table entries port interface
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identifier (iid).
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=item $aerohive->qb_fw_mac()
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Returns reference to hash of forwarding table MAC Addresses.
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C<ahClientMac>
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=item $aerohive->qb_fw_vlan()
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Returns reference to hash of forwarding table entries VLAN ID.
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C<ahClientVLAN>
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=back
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=head2 Arp Cache Table Augmentation
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The AP has knowledge of MAC->IP mappings for wireless clients.
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Augmenting the arp cache data with these MAC->IP mappings enables visibility
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for stations that only communicate locally.
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=over
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=item $aerohive->at_paddr()
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C<ahClientMac>
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=item $aerohive->at_netaddr()
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C<ahClientIP>
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=back
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=head2 Table Methods imported from SNMP::Info::Layer2
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See L<SNMP::Info::Layer2/"TABLE METHODS"> for details.
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=cut
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