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# SNMP::Info::Layer2::C2900
# $Id$
#
# Copyright (c) 2008 Max Baker changes from version 0.8 and beyond.
#
# Copyright (c) 2002,2003 Regents of the University of California
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#     * Redistributions of source code must retain the above copyright notice,
#       this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * Neither the name of the University of California, Santa Cruz nor the
#       names of its contributors may be used to endorse or promote products
#       derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
package SNMP::Info::Layer2::C2900;
use strict;
use Exporter;
use SNMP::Info::Layer2::Cisco;
@SNMP::Info::Layer2::C2900::ISA = qw/SNMP::Info::Layer2::Cisco Exporter/;
@SNMP::Info::Layer2::C2900::EXPORT_OK = qw//;
use vars qw/$VERSION %FUNCS %GLOBALS %MIBS %MUNGE/;
$VERSION = '3.32';
%GLOBALS = (
    %SNMP::Info::Layer2::Cisco::GLOBALS,
);
%FUNCS = (
    %SNMP::Info::Layer2::Cisco::FUNCS,
    'i_name' => 'ifAlias',
    # C2900PortEntry
    'c2900_p_index'        => 'c2900PortIfIndex',
    'c2900_p_duplex'       => 'c2900PortDuplexStatus',
    'c2900_p_duplex_admin' => 'c2900PortDuplexState',
    'c2900_p_speed_admin'  => 'c2900PortAdminSpeed',
);
%MIBS = (
    %SNMP::Info::Layer2::Cisco::MIBS,
    'CISCO-C2900-MIB' => 'ciscoC2900MIB',
);
%MUNGE = (
    %SNMP::Info::Layer2::Cisco::MUNGE,
);
sub vendor {
    return 'cisco';
}
sub cisco_comm_indexing {
    return 1;
}
sub i_duplex {
    my $c2900   = shift;
    my $partial = shift;
    my $interfaces     = $c2900->interfaces($partial);
    my $c2900_p_index  = $c2900->c2900_p_index() || {};
    my $c2900_p_duplex = $c2900->c2900_p_duplex();
    my %reverse_2900 = reverse %$c2900_p_index;
    my %i_duplex;
    foreach my $if ( keys %$interfaces ) {
        my $port_2900 = $reverse_2900{$if};
        next unless defined $port_2900;
        my $duplex = $c2900_p_duplex->{$port_2900};
        next unless defined $duplex;
        $duplex = 'half' if $duplex =~ /half/i;
        $duplex = 'full' if $duplex =~ /full/i;
        $i_duplex{$if} = $duplex;
    }
    return \%i_duplex;
}
sub i_duplex_admin {
    my $c2900   = shift;
    my $partial = shift;
    my $interfaces    = $c2900->interfaces($partial);
    my $c2900_p_index = $c2900->c2900_p_index() || {};
    my $c2900_p_admin = $c2900->c2900_p_duplex_admin();
    my %reverse_2900 = reverse %$c2900_p_index;
    my %i_duplex_admin;
    foreach my $if ( keys %$interfaces ) {
        my $port_2900 = $reverse_2900{$if};
        next unless defined $port_2900;
        my $duplex = $c2900_p_admin->{$port_2900};
        next unless defined $duplex;
        $duplex = 'half' if $duplex =~ /half/i;
        $duplex = 'full' if $duplex =~ /full/i;
        $duplex = 'auto' if $duplex =~ /auto/i;
        $i_duplex_admin{$if} = $duplex;
    }
    return \%i_duplex_admin;
}
sub i_speed_admin {
    my $c2900   = shift;
    my $partial = shift;
    my %i_speed_admin;
    my $p_port        = $c2900->p_port() || {};
    my $interfaces    = $c2900->interfaces($partial);
    my $c2900_p_index = $c2900->c2900_p_index() || {};
    my %reverse_2900 = reverse %$c2900_p_index;
    my $c2900_p_speed
        = $c2900->c2900_p_speed_admin( $reverse_2900{$partial} );
    my %speeds = (
        'autoDetect' => 'auto',
        's10000000'  => '10 Mbps',
        's100000000' => '100 Mbps',
    );
    %i_speed_admin
        = map { $c2900_p_index->{$_} => $speeds{ $c2900_p_speed->{$_} } }
        keys %$c2900_p_index;
    return \%i_speed_admin;
}
sub set_i_speed_admin {
    my $c2900 = shift;
    my ( $speed, $iid ) = @_;
    # map speeds to those the switch will understand
    my %speeds = qw/auto 1 10 10000000 100 100000000/;
    my $c2900_p_index = $c2900->c2900_p_index() || {};
    my %reverse_2900 = reverse %$c2900_p_index;
    $speed = lc($speed);
    return unless defined $speeds{$speed};
    # account for weirdness of c2900 mib
    $iid = $reverse_2900{$iid};
    return $c2900->set_c2900_p_speed_admin( $speeds{$speed}, $iid );
}
sub set_i_duplex_admin {
    my $c2900 = shift;
    my ( $duplex, $iid ) = @_;
    # map a textual duplex to an integer one the switch understands
    my %duplexes = qw/full 1 half 2 auto 3/;
    my $c2900_p_index = $c2900->c2900_p_index() || {};
    my %reverse_2900 = reverse %$c2900_p_index;
    $duplex = lc($duplex);
    return unless defined $duplexes{$duplex};
    # account for weirdness of c2900 mib
    $iid = $reverse_2900{$iid};
    return $c2900->set_c2900_p_duplex_admin( $duplexes{$duplex}, $iid );
}
# Use i_descritption for port key, cuz i_name can be manually entered.
sub interfaces {
    my $c2900   = shift;
    my $partial = shift;
    my $interfaces = $c2900->i_index($partial)       || {};
    my $i_descr    = $c2900->i_description($partial) || {};
    my %if;
    foreach my $iid ( keys %$interfaces ) {
        my $port = $i_descr->{$iid};
        next unless defined $port;
        $port =~ s/\./\//g if ( $port =~ /\d+\.\d+$/ );
        $port =~ s/[^\d\/,()\w]+//gi;
        $if{$iid} = $port;
    }
    return \%if;
}
1;
__END__
HideShow 194 lines of Pod
=head1 NAME
SNMP::Info::Layer2::C2900 - SNMP Interface to Cisco Catalyst 2900 Switches
running IOS
=head1 AUTHOR
Max Baker
=head1 SYNOPSIS
 # Let SNMP::Info determine the correct subclass for you. 
 my $c2900 = new SNMP::Info(
                        AutoSpecify => 1,
                        Debug       => 1,
                        # These arguments are passed directly to SNMP::Session
                        DestHost    => 'myswitch',
                        Community   => 'public',
                        Version     => 2
                        ) 
    or die "Can't connect to DestHost.\n";
 my $class = $c2900->class();
 print "SNMP::Info determined this device to fall under subclass : $class\n";
=head1 DESCRIPTION
Provides abstraction to the configuration information obtainable from a 
C2900 device through SNMP. 
For speed or debugging purposes you can call the subclass directly, but not
after determining a more specific class using the method above. 
 my $c2900 = new SNMP::Info::Layer2::C2900(...);
=head2 Inherited Classes
=over
=item SNMP::Info::Layer2::Cisco
=back
=head2 Required MIBs
=over
=item F<CISCO-C2900-MIB>
Part of the v2 MIBs from Cisco.
=back
=head2 Inherited MIBs
See L<SNMP::Info::Layer2::Cisco/"Required MIBs"> for its MIB requirements.
=head1 GLOBALS
These are methods that return scalar value from SNMP
=head2 Overrides
=over
=item $c2900->vendor()
Returns 'cisco' :)
=item $c2900->cisco_comm_indexing()
Returns 1.  Use vlan indexing.
=back
=head2 Globals imported from SNMP::Info::Layer2::Cisco
See L<SNMP::Info::Layer2::Cisco/"GLOBALS"> for details.
=head1 TABLE METHODS
These are methods that return tables of information in the form of a reference
to a hash.
=head2 Overrides
=over
=item $c2900->interfaces()
Returns reference to the map between IID and physical Port.
On the 2900 devices i_name isn't reliable, so we override to just the
description.
Next all dots are changed for forward slashes so that the physical port name 
is the same as the broad-casted CDP port name. 
    (Ethernet0.1 -> Ethernet0/1)
Also, any weird characters are removed, as I saw a few pop up.
=item $c2900->i_duplex()
Returns reference to map of IIDs to current link duplex
Crosses $c2900->c2900_p_index() with $c2900->c2900_p_duplex()
=item $c2900->i_duplex_admin()
Returns reference to hash of IIDs to admin duplex setting
Crosses $c2900->c2900_p_index() with $c2900->c2900_p_duplex_admin()
=item $c2900->i_speed_admin()
Returns reference to hash of IIDs to admin speed setting.
=back
=head2 F<C2900-MIB> Port Entry Table 
=over
=item $c2900->c2900_p_index()
Maps the Switch Port Table to the IID
(C<c2900PortIfIndex>)
=item $c2900->c2900_p_duplex()
Gives Port Duplex Info
(C<c2900PortDuplexStatus>)
=item $c2900->c2900_p_duplex_admin()
Gives admin setting for Duplex Info
(C<c2900PortDuplexState>)
=item $c2900->c2900_p_speed_admin()
Gives Admin speed of port 
(C<c2900PortAdminSpeed>)
=back
=head2 Table Methods imported from SNMP::Info::Layer2::Cisco
See L<SNMP::Info::Layer2::Cisco/"TABLE METHODS"> for details.
=head1 SET METHODS
These are methods that provide SNMP set functionality for overridden methods
or provide a simpler interface to complex set operations.  See
L<SNMP::Info/"SETTING DATA VIA SNMP"> for general information on set
operations. 
=over
=item $c2900->set_i_speed_admin(speed, ifIndex)
Sets port speed, must be supplied with speed and port C<ifIndex>
Speed choices are 'auto', '10', '100'
Crosses $c2900->c2900_p_index() with $c2900->c2900_p_speed_admin() to utilize
port C<ifIndex>.
    Example:
    my %if_map = reverse %{$c2900->interfaces()};
    $c2900->set_i_speed_admin('auto', $if_map{'FastEthernet0/1'}) 
        or die "Couldn't change port speed. ",$c2900->error(1);
=item $c2900->set_i_duplex_admin(duplex, ifIndex)
Sets port duplex, must be supplied with duplex and port C<ifIndex>
Speed choices are 'auto', 'half', 'full'
Crosses $c2900->c2900_p_index() with $c2900->c2900_p_duplex_admin() to utilize
port C<ifIndex>.
    Example:
    my %if_map = reverse %{$c2900->interfaces()};
    $c2900->set_i_duplex_admin('auto', $if_map{'FastEthernet0/1'}) 
        or die "Couldn't change port duplex. ",$c2900->error(1);
=back
=cut