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# $OpenBSD: Switchd.pm,v 1.1 2017/06/22 20:06:14 bluhm Exp $
# Copyright (c) 2010-2017 Alexander Bluhm <bluhm@openbsd.org>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
use strict;
use warnings;
package Switchd;
use parent 'Proc';
use Carp;
use Cwd;
use Sys::Hostname;
use File::Basename;
sub new {
my $class = shift;
my %args = @_;
$args{logfile} ||= "switchd.log";
$args{up} ||= $args{dryrun} || "listen on ";
$args{down} ||= $args{dryrun} ? "switchd.conf:" : "parent terminating";
$args{func} = sub { Carp::confess "$class func may not be called" };
$args{conffile} ||= "switchd.conf";
my $self = Proc::new($class, %args);
$self->{listenaddr}
or croak "$class listen addr not given";
$self->{listenport}
or croak "$class listen port not given";
# substitute variables in config file
my $curdir = dirname($0) || ".";
my $objdir = getcwd();
my $hostname = hostname();
(my $host = $hostname) =~ s/\..*//;
my $listenaddr = $self->{listenaddr};
my $listenport = $self->{listenport};
my $test = basename($self->{testfile} || "");
open(my $fh, '>', $self->{conffile})
or die ref($self), " conf file $self->{conffile} create failed: $!";
my $config = "# regress $test\n";
$config .= "listen on $self->{listenaddr} port $self->{listenport}\n"
unless $self->{conf} && $self->{conf} =~ /^listen /;
$config .= $self->{conf} if $self->{conf};
$config =~ s/(\$[a-z]+)/$1/eeg;
print $fh $config;
close $fh;
return $self;
}
sub child {
my $self = shift;
my @sudo = $ENV{SUDO} ? $ENV{SUDO} : ();
my @ktrace = $ENV{KTRACE} ? ($ENV{KTRACE}, "-i") : ();
my $switchd = $ENV{SWITCHD} ? $ENV{SWITCHD} : "switchd";
my @cmd = (@sudo, @ktrace, $switchd, "-dvv", "-f", $self->{conffile});
print STDERR "execute: @cmd\n";
exec @cmd;
die ref($self), " exec '@cmd' failed: $!";
}
1;
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