87 lines
2.3 KiB
Perl
87 lines
2.3 KiB
Perl
#!/usr/bin/perl
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#
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# Generate a report of the status of interfaces configured
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# by 'ifupdown'
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# (c) 2004 Javier Fernandez-Sanguino <jfs@debian.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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$statefile="/run/network/ifstate";
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$configfile="/etc/network/interfaces";
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open (IFACE,"<$configfile") || die ("Could not open $configfile: $!\n");
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while (<IFACE>) {
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chomp;
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if ( /^iface\s+(\w+)\s+/ ) {
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$configured{$1}=$_;
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}
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}
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close IFACE;
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open (IPLINK,"ip link show|") || die ("Could not execute ip: $!\n");
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while (<IPLINK>) {
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chomp;
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# FORMAT
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# #: AAAA: <XXXXX,UP> mtu 16436 qdisc noqueue
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if ( /^\d+: (\w+):.*?\<.*?,UP.*?\>/ ) {
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$iplink{$1}=$_;
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}
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}
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close IPLINK;
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open (STATE,"<$statefile") || die ("Could not open $statefile: $!\n");
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$line = 0;
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while (<STATE>) {
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chomp;
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$line++;
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# Format is IFACE=IFACE
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if ( /^(\w+)=(\w+)$/ ) {
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$iface = $1;
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$ifaces = $2;
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if ( $iface ne $ifaces ) {
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print STDERR "Error in $statefile (line $line), interface names do not match ('$iface' and '$ifaces')\n";
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} else {
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check_status($iface);
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}
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} else {
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print STDERR "Error in $statefile (line $line), unknown content\n";
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}
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}
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close STATE;
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exit 0;
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sub check_status {
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my ($int) = @_;
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print "$int: ";
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my $status = "UP";
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# Check if it's really up, this is done basically because ifupdown
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# might not have configured it properly even if it thinks he has
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# (sample: ifconfig croaks when wrong parameters are used and
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# ifupdown does not detect that the system call went awry)
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$status = "ERROR_NOT_REALLY_UP" if ! defined ($iplink{$int}) ;
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if ( defined ( $configured{$int} ) ) {
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$status .= ",CONFIGURED";
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} else {
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$status .= ",MANUALLY_CONFIGURED";
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}
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print "$status\n";
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return 0;
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}
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