1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
#!/usr/bin/perl
# $OpenBSD: remote.pl,v 1.1.1.1 2013/01/03 17:36:39 bluhm Exp $
# Copyright (c) 2010-2013 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 $test;
our %args;
if (@ARGV and -f $ARGV[-1]) {
$test = pop;
do $test
or die "Do test file $test 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($0)."/remote.log",
idle => 5,
func => \&relay,
%{$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 $s = Server->new(
func => \&read_datagram,
%{$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 => $test,
%{$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);
|
