134 lines
3.9 KiB
Perl
134 lines
3.9 KiB
Perl
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#----------------------------------------------------------------------
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# Copyright 1999-2005 Mitel Networks Corporation
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# This program is free software; you can redistribute it and/or
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# modify it under the same terms as Perl itself.
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#----------------------------------------------------------------------
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package esmith::ethernet;
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#----------------------------------------------------------------------
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use strict;
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use File::Basename;
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=head1 NAME
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esmith::ethernet - Ethernet-related utility routines for e-smith
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=head1 VERSION
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This file documents C<esmith::ethernet> version B<1.4.0>
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=head1 SYNOPSIS
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use esmith::ethernet;
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=head1 DESCRIPTION
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This module contains routines for
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=pod
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=head2 probeAdapters()
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Probe for any recognised adapters
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=cut
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sub probeAdapters ()
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{
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opendir(my $dh, "/sys/class/net") or die "Couldn't open /sys/class/net: $!";
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my @nics = grep { $_ !~ m/^\./ } readdir($dh);
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closedir($dh);
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my $adapters = '';
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my $index = 1;
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foreach my $nic (@nics){
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# Untaint $nic and makes sure the name looks OK
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next unless ($nic =~ m/^(\w+[\.:]?\d+)$/);
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$nic = $1;
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next if (
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# skip loopback
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$nic eq 'lo' ||
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# skip non links
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!-l "/sys/class/net/$nic" ||
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# skip wireless nics
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-d "/sys/class/net/$nic/wireless" ||
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-l "/sys/class/net/$nic/phy80211" ||
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# skip bridges
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-d "/sys/class/net/$nic/bridge" ||
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# skip vlans
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-f "/proc/net/vlan/$nic" ||
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# skip bonds
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-d "/sys/class/net/$nic/bonding" ||
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# skip tun/tap
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-f "/sys/class/net/$nic/tun_flags" ||
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# skip dummy
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-d "/sys/devices/virtual/net/$nic"
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);
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# Now we should be left only wth ethernet adapters
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open HW, "/sys/class/net/$nic/address";
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my $mac = join("", <HW>);
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close HW;
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# Check MAC Addr and untaint it
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next unless ($mac =~ m/^(([\da-f]{2}:){5}[\da-f]{2})$/i);
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$mac = $1;
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# If the device is a slave of a bridge, it's real MAC
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# address can be found in /proc/net/bonding/bondX
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if (-l "/sys/class/net/$nic/master"){
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my $bond = basename (readlink "/sys/class/net/$nic/master");
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local $/ = '';
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open SLAVES, "/proc/net/bonding/$bond";
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my @slaves = <SLAVES>;
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close SLAVES;
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my @slaveInfo = grep { /^Slave\ Interface:\ $nic/m } @slaves;
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foreach (split /\n+/, (join "", @slaveInfo)){
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$mac = $1 if (/^Permanent\ HW\ addr:\ (.*)$/);
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}
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}
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chomp($mac);
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my $driver = basename (readlink "/sys/class/net/$nic/device/driver");
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# Untaint driver name
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next unless ($driver =~ m/^([\w\-]+)$/);
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$driver = $1;
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my $bus = basename (readlink "/sys/class/net/$nic/device/subsystem");
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my $desc = $nic;
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if ($bus eq 'pci'){
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my $dev = basename (readlink "/sys/class/net/$nic/device");
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# Untaint $dev
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if ($dev =~ m/^(\d+:\d+:\d+\.\d+)$/){
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$dev = $1;
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$desc = `/sbin/lspci -s $dev`;
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# Extract only description
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$desc =~ m/^.*:.*:\s+(.*)\s*/;
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$desc = $1;
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}
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}
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elsif ($bus eq 'virtio'){
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$desc = 'Virtio Network Device';
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}
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# TODO: we should also try to get the description of USB devices
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$adapters .= "EthernetDriver" . $index++ . "\t" . $driver . "\t" .
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$mac . "\t" . "\"$desc\"" . "\t" . $nic ."\n";
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}
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return $adapters;
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}
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#----------------------------------------------------------------------
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# Return one to make the import process return success.
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#----------------------------------------------------------------------
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1;
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=pod
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=AUTHOR
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SME Server Developers <bugs@e-smith.com>
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For more information see http://www.e-smith.org/
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=cut
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