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#!/usr/bin/env perl
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use warnings;
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use strict;
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# Description: Networking for Unix systems
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our $VERSION = '1.2';
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# Linux network module for sysinfo client
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# Author: R. W. Rodolico
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# Date: 2016-04-08
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# module to get network interface information for Linux systems
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# assumes ifconfig is on the system and executable by the user
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# NOTE: this takes the ifconfig output and parses it, so changes to
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# this output invalidates this module
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BEGIN {
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push @INC, shift;
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}
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use library;
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exit 1 unless lc ( &getOperatingSystem() ) eq 'linux';
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my $command = &validCommandOnSystem('/sbin/ifconfig');
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exit 1 unless $command;
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my $CATEGORY = 'network';
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# eth1 Link encap:Ethernet HWaddr 00:16:3E:1F:EF:4F
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my $regexHWADDR = 'hwaddr[^0-9a-f:]+([0-9a-f:]+)[^0-9a-f:]';
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# inet addr:10.110.110.2 Bcast:10.110.110.255 Mask:255.255.255.0
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my $regexINET = 'inet addr:\s*([0-9.]+)[^0-9].*mask:([0-9.]+)';
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# inet6 addr: fe80::216:3eff:fe1f:ef4f/64 Scope:Link
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my $regexINET6 = 'inet6 addr: ([0-9a-f:]+)\/([0-9]+)[^0-9]';
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# UP LOOPBACK RUNNING MTU:16436 Metric:1
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my $regexMTU = 'mtu:([0-9]+)[^0-9]';
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my $temp = qx/$command/;
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my @temp = split( "\n", $temp );
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my $currentIF;
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while ( @temp ) {
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my $line = shift @temp;
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next unless $line;
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if ( $line =~ m/^([^ ]+) /) { # if the first character is not a space, starting new entry
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$currentIF = $1;
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if ( $line =~ m/$regexHWADDR/i ) {
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print "$CATEGORY\t$currentIF\tmac\t$1\n";
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} else {
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print "$CATEGORY\t$currentIF\tmac\tunknown\n";
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}
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} elsif ( $line =~ m/$regexINET/i ) {
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print "$CATEGORY\t$currentIF\taddress\t$1\n";
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print "$CATEGORY\t$currentIF\tnetmask\t$2\n";
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} elsif ( $line =~ m/$regexINET6/i ) {
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print "$CATEGORY\t$currentIF\tip6address\t$1\n";
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print "$CATEGORY\t$currentIF\tip6networkbits\t$2\n";
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} elsif ( $line =~ m/$regexMTU/i ) {
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print "$CATEGORY\t$currentIF\tmtu\t$1\n";
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}
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}
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