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