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|
#!/usr/bin/perl
# $OpenBSD: remote.pl,v 1.3 2014/08/18 22:58:19 bluhm Exp $
# Copyright (c) 2010-2014 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;
use File::Basename;
use File::Copy;
use Socket;
use Socket6;
use Client;
use Relay;
use Server;
use Remote;
require 'funcs.pl';
sub usage {
die <<"EOF";
usage:
remote.pl localport remoteaddr remoteport [test-args.pl]
Run test with local client and server. Remote relay
forwarding from remoteaddr remoteport to server localport
has to be started manually.
remote.pl copy|splice listenaddr connectaddr connectport [test-args.pl]
Only start remote relay.
remote.pl copy|splice localaddr remoteaddr remotessh [test-args.pl]
Run test with local client and server. Remote relay is
started automatically with ssh on remotessh.
EOF
}
my $testfile;
our %args;
if (@ARGV and -f $ARGV[-1]) {
$testfile = pop;
do $testfile
or die "Do test file $testfile failed: ", $@ || $!;
}
my $mode =
@ARGV == 3 && $ARGV[0] =~ /^\d+$/ && $ARGV[2] =~ /^\d+$/ ? "manual" :
@ARGV == 4 && $ARGV[1] !~ /^\d+$/ && $ARGV[3] =~ /^\d+$/ ? "relay" :
@ARGV == 4 && $ARGV[1] !~ /^\d+$/ && $ARGV[3] !~ /^\d+$/ ? "auto" :
usage();
my $r;
if ($mode eq "relay") {
$r = Relay->new(
forward => $ARGV[0],
logfile => dirname($0)."/remote.log",
idle => 3,
func => \&relay,
%{$args{relay}},
protocol => "udp",
listendomain => AF_INET,
listenaddr => $ARGV[1],
connectdomain => AF_INET,
connectaddr => $ARGV[2],
connectport => $ARGV[3],
);
open(my $log, '<', $r->{logfile})
or die "Remote log file open failed: $!";
$SIG{__DIE__} = sub {
die @_ if $^S;
copy($log, \*STDERR);
warn @_;
exit 255;
};
copy($log, \*STDERR);
$r->run;
copy($log, \*STDERR);
$r->up;
copy($log, \*STDERR);
$r->down;
copy($log, \*STDERR);
exit;
}
my $s = Server->new(
idle => 4,
func => \&read_datagram,
%{$args{server}},
protocol => "udp",
listendomain => AF_INET,
listenaddr => ($mode eq "auto" ? $ARGV[1] : undef),
listenport => ($mode eq "manual" ? $ARGV[0] : undef),
);
if ($mode eq "auto") {
$r = Remote->new(
forward => $ARGV[0],
logfile => "relay.log",
testfile => $testfile,
%{$args{relay}},
remotessh => $ARGV[3],
protocol => "udp",
listenaddr => $ARGV[2],
connectaddr => $ARGV[1],
connectport => $s->{listenport},
);
$r->run->up;
}
my $c = Client->new(
func => \&write_datagram,
%{$args{client}},
protocol => "udp",
connectdomain => AF_INET,
connectaddr => ($mode eq "manual" ? $ARGV[1] : $r->{listenaddr}),
connectport => ($mode eq "manual" ? $ARGV[2] : $r->{listenport}),
);
$s->run;
$c->run->up;
$s->up;
$c->down;
$r->down if $r;
$s->down;
check_logs($c, $r, $s, %args);
|
