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# $OpenBSD: Server.pm,v 1.15 2021/12/22 11:50:28 bluhm Exp $
# Copyright (c) 2010-2021 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 Server;
use parent 'Proc';
use Carp;
use Config;
use Socket qw(:DEFAULT IPPROTO_TCP TCP_NODELAY);
use Socket6;
use IO::Socket::IP;
use IO::Socket::SSL;
sub new {
my $class = shift;
my %args = @_;
$args{logfile} ||= "server.log";
$args{up} ||= "Accepted";
my $self = Proc::new($class, %args);
$self->{listendomain}
or croak "$class listen domain not given";
$SSL_ERROR = "";
my $iosocket = $self->{ssl} ? "IO::Socket::SSL" : "IO::Socket::IP";
my $ls = $iosocket->new(
Proto => "tcp",
ReuseAddr => 1,
Domain => $self->{listendomain},
# IO::Socket::IP calls the domain family
Family => $self->{listendomain},
$self->{listenaddr} ? (LocalAddr => $self->{listenaddr}) : (),
$self->{listenport} ? (LocalPort => $self->{listenport}) : (),
SSL_server => 1,
SSL_key_file => "server.key",
SSL_cert_file => "server.crt",
SSL_verify_mode => SSL_VERIFY_NONE,
) or die ref($self), " $iosocket socket failed: $!,$SSL_ERROR";
if ($self->{sndbuf}) {
setsockopt($ls, SOL_SOCKET, SO_SNDBUF,
pack('i', $self->{sndbuf}))
or die ref($self), " set SO_SNDBUF failed: $!";
}
if ($self->{rcvbuf}) {
setsockopt($ls, SOL_SOCKET, SO_RCVBUF,
pack('i', $self->{rcvbuf}))
or die ref($self), " set SO_RCVBUF failed: $!";
}
my $packstr = $Config{longsize} == 8 ? 'ql!' :
$Config{byteorder} == 1234 ? 'lxxxxl!xxxx' : 'xxxxll!';
if ($self->{sndtimeo}) {
setsockopt($ls, SOL_SOCKET, SO_SNDTIMEO,
pack($packstr, $self->{sndtimeo}, 0))
or die ref($self), " set SO_SNDTIMEO failed: $!";
}
if ($self->{rcvtimeo}) {
setsockopt($ls, SOL_SOCKET, SO_RCVTIMEO,
pack($packstr, $self->{rcvtimeo}, 0))
or die ref($self), " set SO_RCVTIMEO failed: $!";
}
setsockopt($ls, IPPROTO_TCP, TCP_NODELAY, pack('i', 1))
or die ref($self), " set TCP_NODELAY failed: $!";
listen($ls, 1)
or die ref($self), " socket listen failed: $!";
my $log = $self->{log};
print $log "listen sock: ",$ls->sockhost()," ",$ls->sockport(),"\n";
$self->{listenaddr} = $ls->sockhost() unless $self->{listenaddr};
$self->{listenport} = $ls->sockport() unless $self->{listenport};
$self->{ls} = $ls;
return $self;
}
sub child {
my $self = shift;
# in case we redo the accept, shutdown the old one
shutdown(\*STDOUT, SHUT_WR);
delete $self->{as};
my $as = $self->{ls}->accept()
or die ref($self)," ",ref($self->{ls}),
" socket accept failed: $!,$SSL_ERROR";
print STDERR "accept sock: ",$as->sockhost()," ",$as->sockport(),"\n";
print STDERR "accept peer: ",$as->peerhost()," ",$as->peerport(),"\n";
if ($self->{ssl}) {
print STDERR "ssl version: ",$as->get_sslversion(),"\n";
print STDERR "ssl cipher: ",$as->get_cipher(),"\n";
print STDERR "ssl peer certificate:\n",
$as->dump_peer_certificate();
}
*STDIN = *STDOUT = $self->{as} = $as;
}
1;
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