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#195 IP address table - IPv4 Address Table will use the IP-MIB::ipAddressTable if the deprecated IP-MIB::ipAddrTable doesn't return results

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This commit is contained in:
Eric A. Miller
2018-05-07 21:09:16 -04:00
parent 4ff904f3cd
commit 1a80138026
7 changed files with 249 additions and 34 deletions
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5
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@@ -2,7 +2,10 @@ Version 3.61
[ENHANCEMENTS]
* #255 IPv6 support
* #255 IPv6 support - Set the transport-specifier if given an IPv6 address
* #195 IP address table - IPv4 Address Table will use the
IP-MIB::ipAddressTable if the deprecated IP-MIB::ipAddrTable doesn't
return results
Version 3.60 (2018-05-06)

128
lib/SNMP/Info.pm
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@@ -2560,36 +2560,45 @@ See C<IF-MIB> for full description
=back
=head2 IP Address Table
=head2 IPv4 Address Table
Each entry in this table is an IP address in use on this device. Usually
this is implemented in Layer3 Devices.
Each entry in this table is an IPv4 address in use on this device. Usually
this is implemented in Layer3 Devices. These methods try the deprecated IPv4
address table C<IP-MIB::ipAddrTable> first due to its prevalence and will try
the current C<IP-MIB::ipAddressTable> if it doesn't return any results.
C<IP-MIB::ipAddressTable> results are filtered to only return IPv4 unicast
addresses and modified to match the return format of the older table for
backwards compatibility.
See documentation in L<SNMP::Info::IPv6> for IPv6 Address Table.
=over
=item $info->ip_index()
Maps the IP Table to the IID
Maps the IPv4 addresses to the interface index
(C<ipAdEntIfIndex>)
(C<ipAdEntIfIndex>) or filtered and index modified (C<ipAddressIfIndex>)
=item $info->ip_table()
Maps the Table to the IP address
Maps the Table to the IPv4 address
(C<ipAdEntAddr>)
(C<ipAdEntAddr>) or address extracted from (C<ipAddressIfIndex>)
=item $info->ip_netmask()
Gives netmask setting for IP table entry.
Gives netmask setting for IPv4 table entry.
(C<ipAdEntNetMask>)
(C<ipAdEntNetMask>) or netmask calculated from (C<ipAddressPrefix>)
=item $info->ip_broadcast()
Gives broadcast address for IP table entry.
Gives the value of the least-significant bit in the IPv4 broadcast address
either 1 or 0.
(C<ipAdEntBcastAddr>)
(C<ipAdEntBcastAddr>), there is no equivalent from the
C<IP-MIB::ipAddressTable>
=back
@@ -2770,6 +2779,88 @@ no protocols are supported or running.
=cut
sub ip_index {
my $self = shift;
my $o_ip_idx = $self->old_ip_index();
return $o_ip_idx
if ( ref {} eq ref $o_ip_idx and scalar keys %$o_ip_idx );
# Since callers may be using the old iid to get the IP, strip protocol
# and length from the index
my $n_ip_idx = $self->new_ip_index() || {};
my $n_ip_type = $self->new_ip_type() || {};
my %ip_index;
foreach my $iid ( keys %$n_ip_idx ) {
next unless $n_ip_type->{$iid} and $n_ip_type->{$iid} eq 'unicast';
my @parts = split( /\./, $iid );
my $type = shift(@parts);
my $len = shift(@parts);
next unless ( ( $type == 1 ) and ( $len == 4 ) );
my $new_iid = join( ".", @parts );
$ip_index{$new_iid} = $n_ip_idx->{$iid};
}
return \%ip_index;
}
sub ip_table {
my $self = shift;
my $o_ip_table = $self->old_ip_table();
return $o_ip_table
if ( ref {} eq ref $o_ip_table and scalar keys %$o_ip_table );
my $n_ip_idx = $self->new_ip_index() || {};
my $n_ip_type = $self->new_ip_type() || {};
my %ip_table;
foreach my $iid ( keys %$n_ip_idx ) {
next unless $n_ip_type->{$iid} and $n_ip_type->{$iid} eq 'unicast';
my @parts = split( /\./, $iid );
my $type = shift(@parts);
my $len = shift(@parts);
next unless ( ( $type == 1 ) and ( $len == 4 ) );
my $new_iid = join( ".", @parts );
$ip_table{$new_iid} = $new_iid;
}
return \%ip_table;
}
sub ip_netmask {
my $self = shift;
my $o_ip_mask = $self->old_ip_netmask();
return $o_ip_mask
if ( ref {} eq ref $o_ip_mask and scalar keys %$o_ip_mask );
my $n_ip_pfx = $self->new_ip_prefix() || {};
my $n_ip_type = $self->new_ip_type() || {};
my %ip_netmask;
foreach my $iid ( keys %$n_ip_pfx ) {
next unless $n_ip_type->{$iid} and $n_ip_type->{$iid} eq 'unicast';
my @parts = split( /\./, $iid );
my $type = shift(@parts);
my $len = shift(@parts);
next unless ( ( $type == 1 ) and ( $len == 4 ) );
my $prefix = $n_ip_pfx->{$iid};
next if ( !$prefix || $prefix =~ /0\.0$/ );
if ( $prefix =~ /\.(\d+)$/ ) {
$prefix = $1;
}
my $new_iid = join( ".", @parts );
my $mask = NetAddr::IP::Lite->new( $new_iid . '/' . $prefix )->mask()
|| undef;
$ip_netmask{$new_iid} = $mask;
}
return \%ip_netmask;
}
sub has_topo {
my $self = shift;
@@ -3182,11 +3273,16 @@ ALTEON-TS-PHYSICAL-MIB::agPortCurCfgPortName.
# IF-MIB::IfStackTable
'i_stack_status' => 'ifStackStatus',
# IP::MIB::ipAddrTable (deprecated IPv4 address table)
'ip_index' => 'ipAdEntIfIndex',
'ip_table' => 'ipAdEntAddr',
'ip_netmask' => 'ipAdEntNetMask',
'ip_broadcast' => 'ipAdEntBcastAddr',
# IP-MIB::ipAddrTable (deprecated IPv4 address table)
'old_ip_index' => 'ipAdEntIfIndex',
'old_ip_table' => 'ipAdEntAddr',
'old_ip_netmask' => 'ipAdEntNetMask',
'ip_broadcast' => 'ipAdEntBcastAddr',
# IP-MIB::ipAddressTable
'new_ip_index' => 'ipAddressIfIndex',
'new_ip_prefix' => 'ipAddressPrefix',
'new_ip_type' => 'ipAddressType',
# IF-MIB::ifXTable - Extension Table
'i_speed_high' => 'ifHighSpeed',

10
lib/SNMP/Info/Airespace.pm
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@@ -508,8 +508,8 @@ sub ip_index {
my $airespace = shift;
my $partial = shift;
my $ip_index = $airespace->orig_ip_index($partial) || {};
my $if_ip = $airespace->airespace_if_ip() || {};
my $ip_index = $airespace->SUPER::ip_index($partial) || {};
my $if_ip = $airespace->airespace_if_ip() || {};
my %ip_index;
foreach my $ip ( keys %$ip_index ) {
@@ -534,9 +534,9 @@ sub ip_netmask {
my $airespace = shift;
my $partial = shift;
my $ip_mask = $airespace->orig_ip_netmask($partial) || {};
my $if_ip = $airespace->airespace_if_ip() || {};
my $if_mask = $airespace->airespace_if_mask() || {};
my $ip_mask = $airespace->SUPER::ip_netmask($partial) || {};
my $if_ip = $airespace->airespace_if_ip() || {};
my $if_mask = $airespace->airespace_if_mask() || {};
my %ip_netmask;
foreach my $ip ( keys %$ip_mask ) {

14
lib/SNMP/Info/Layer3/Nexus.pm
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@@ -143,7 +143,7 @@ sub model {
# override methods in ipAddrTable
sub ip_table {
my $nexus = shift;
my $orig_ip_table = $nexus->orig_ip_table();
my $orig_ip_table = $nexus->SUPER::ip_table();
my %ip_table;
foreach my $iid ( keys %$orig_ip_table ) {
@@ -163,8 +163,8 @@ sub ip_table {
sub ip_index {
my $nexus = shift;
my $orig_ip_table = $nexus->orig_ip_table();
my $orig_ip_index = $nexus->orig_ip_index();
my $orig_ip_table = $nexus->SUPER::ip_table();
my $orig_ip_index = $nexus->SUPER::ip_index();
my %ip_index;
foreach my $iid ( keys %$orig_ip_table ) {
@@ -186,8 +186,8 @@ sub ip_index {
sub ip_netmask {
my $nexus = shift;
my $orig_ip_table = $nexus->orig_ip_table();
my $orig_ip_netmask = $nexus->orig_ip_netmask();
my $orig_ip_table = $nexus->SUPER::ip_table();
my $orig_ip_netmask = $nexus->SUPER::ip_netmask();
my %ip_netmask;
foreach my $iid ( keys %$orig_ip_table ) {
@@ -209,8 +209,8 @@ sub ip_netmask {
sub ip_broadcast {
my $nexus = shift;
my $orig_ip_table = $nexus->orig_ip_table();
my $orig_ip_broadcast = $nexus->orig_ip_broadcast();
my $orig_ip_table = $nexus->SUPER::ip_table();
my $orig_ip_broadcast = $nexus->SUPER::ip_broadcast();
my %ip_broadcast;
foreach my $iid ( keys %$orig_ip_table ) {

4
lib/SNMP/Info/Layer3/Passport.pm
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@@ -450,7 +450,7 @@ sub ip_index {
my $partial = shift;
my $model = $passport->model();
my $ip_index = $passport->orig_ip_index($partial) || {};
my $ip_index = $passport->SUPER::ip_index($partial) || {};
my %ip_index;
foreach my $ip ( keys %$ip_index ) {
@@ -492,7 +492,7 @@ sub ip_netmask {
my $partial = shift;
my $model = $passport->model();
my $ip_mask = $passport->orig_ip_netmask($partial) || {};
my $ip_mask = $passport->SUPER::ip_netmask($partial) || {};
my %ip_index;
foreach my $iid ( keys %$ip_mask ) {

15
lib/SNMP/Info/Layer7/Netscaler.pm
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@@ -55,8 +55,8 @@ $VERSION = '3.60';
%FUNCS = (
%SNMP::Info::Layer7::FUNCS,
# IP Address Table - NS-ROOT-MIB::nsIpAddrTable
'ip_index' => 'ipAddr',
'ip_netmask' => 'ipNetmask',
'ns_ip_index' => 'ipAddr',
'ns_ip_netmask' => 'ipNetmask',
# TODO VLAN - NS-ROOT-MIB::vlanTable
'ns_vid' =>'vlanId',
'ns_vlan_mem' => 'vlanMemberInterfaces',
@@ -96,6 +96,17 @@ sub os_ver {
return $ver;
}
sub ip_index {
my $ns = shift;
return $ns->ns_ip_index();
}
sub ip_netmask {
my $ns = shift;
return $ns->ns_ip_netmask();
}
1;
__END__

105
xt/lib/Test/SNMP/Info.pm
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@@ -457,6 +457,111 @@ sub i_speed_raw : Tests(3) {
$expected, 'Munges restored after i_speed_raw() call');
}
sub ip_index : Tests(4) {
my $test = shift;
can_ok($test->{info}, 'ip_index');
my $cache_data = {
'_old_ip_index' => 1,
'_new_ip_index' => 1,
'_new_ip_type' => 1,
'store' => {
'old_ip_index' =>
{'2.3.4.5' => 7, '2.2.2.2' => 11},
'new_ip_index' =>
{'1.4.1.2.3.4' => 6, '1.4.10.255.255.255' => 8, '1.4.8.8.8.8' => 10},
'new_ip_type' =>
{'1.4.1.2.3.4' => 'unicast', '1.4.10.255.255.255' => 'broadcast', '1.4.8.8.8.8' => 'unicast'},
}
};
$test->{info}->cache($cache_data);
my $expected = {'2.3.4.5' => 7, '2.2.2.2' => 11};
cmp_deeply($test->{info}->ip_index(),
$expected, q(IP addresses mapped to 'ifIndex' using old 'ipAddrTable'));
delete $test->{info}{_old_ip_index};
$expected = {'1.2.3.4' => 6, '8.8.8.8' => 10};
cmp_deeply($test->{info}->ip_index(),
$expected, q(IP addresses mapped to 'ifIndex' using new 'ipAddressTable'));
$test->{info}->clear_cache();
cmp_deeply($test->{info}->ip_index(), {}, q(No data returns empty hash));
}
sub ip_table : Tests(4) {
my $test = shift;
can_ok($test->{info}, 'ip_table');
my $cache_data = {
'_old_ip_table' => 1,
'_new_ip_index' => 1,
'_new_ip_type' => 1,
'store' => {
'old_ip_table' =>
{'2.3.4.5' => '2.3.4.5', '2.2.2.2' => '2.2.2.2'},
'new_ip_index' =>
{'1.4.1.2.3.4' => 6, '1.4.10.255.255.255' => 8, '1.4.8.8.8.8' => 10},
'new_ip_type' =>
{'1.4.1.2.3.4' => 'unicast', '1.4.10.255.255.255' => 'broadcast', '1.4.8.8.8.8' => 'unicast'},
}
};
$test->{info}->cache($cache_data);
my $expected = {'2.3.4.5' => '2.3.4.5', '2.2.2.2' => '2.2.2.2'};
cmp_deeply($test->{info}->ip_table(),
$expected, q(IP addresses using old 'ipAddrTable'));
delete $test->{info}{_old_ip_table};
$expected = {'1.2.3.4' => '1.2.3.4', '8.8.8.8' => '8.8.8.8'};
cmp_deeply($test->{info}->ip_table(),
$expected, q(IP addresses using new 'ipAddressTable'));
$test->{info}->clear_cache();
cmp_deeply($test->{info}->ip_table(), {}, q(No data returns empty hash));
}
sub ip_netmask : Tests(4) {
my $test = shift;
can_ok($test->{info}, 'ip_netmask');
my $cache_data = {
'_old_ip_netmask' => 1,
'_new_ip_prefix' => 1,
'_new_ip_type' => 1,
'store' => {
'old_ip_netmask' =>
{'2.3.4.5' => '255.255.255.0', '2.2.2.2' => '255.255.0.0'},
'new_ip_prefix' =>
{'1.4.1.2.3.4' => 'IP-MIB::ipAddressPrefixOrigin.2.ipv4."1.2.3.0".24', '1.4.10.2.3.4' => '.1.3.6.1.2.1.4.32.1.5.6.1.4.10.0.0.0.8', '1.4.8.8.8.8' => '.0.0'},
'new_ip_type' =>
{'1.4.1.2.3.4' => 'unicast', '1.4.10.2.3.4' => 'unicast', '1.4.8.8.8.8' => 'unicast'},
}
};
$test->{info}->cache($cache_data);
my $expected = {'2.3.4.5' => '255.255.255.0', '2.2.2.2' => '255.255.0.0'};
cmp_deeply($test->{info}->ip_netmask(),
$expected, q(IP netmask using old 'ipAddrTable'));
delete $test->{info}{_old_ip_netmask};
$expected = {'1.2.3.4' => '255.255.255.0', '10.2.3.4' => '255.0.0.0'};
cmp_deeply($test->{info}->ip_netmask(),
$expected, q(IP netmask using new 'ipAddressTable'));
$test->{info}->clear_cache();
cmp_deeply($test->{info}->ip_netmask(), {}, q(No data returns empty hash));
}
# Topo routines will need to be tested in sub classes for conditionals
sub has_topo : Tests(2) {
my $test = shift;