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# $OpenBSD: Server.pm,v 1.13 2020/10/16 22:46:45 bluhm Exp $
# Copyright (c) 2010-2020 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 Socket;
use Socket6;
use IO::Socket;
use IO::Socket::INET6;
use IO::Socket::SSL;
sub new {
my $class = shift;
my %args = @_;
$args{ktracepid} = "ktrace" if $args{ktrace};
$args{ktracepid} = $ENV{KTRACE} if $ENV{KTRACE};
$args{ktracefile} ||= "server.ktrace";
$args{logfile} ||= "server.log";
$args{up} ||= "Accepted";
my $self = Proc::new($class, %args);
$self->{listenproto} ||= "udp";
defined($self->{listendomain})
or croak "$class listen domain not given";
return $self->listen();
}
sub listen {
my $self = shift;
$SSL_ERROR = "";
my $iosocket = $self->{listenproto} eq "tls" ?
"IO::Socket::SSL" : "IO::Socket::INET6";
my $proto = $self->{listenproto};
$proto = "tcp" if $proto eq "tls";
my $ls = $iosocket->new(
Proto => $proto,
ReuseAddr => 1,
Domain => $self->{listendomain},
$self->{listenaddr} ? (LocalAddr => $self->{listenaddr}) : (),
$self->{listenport} ? (LocalPort => $self->{listenport}) : (),
SSL_server => 1,
SSL_key_file => "server.key",
SSL_cert_file => "server.crt",
SSL_ca_file => ($self->{sslca} || "ca.crt"),
SSL_verify_mode => ($self->{sslca} ?
SSL_VERIFY_PEER : SSL_VERIFY_NONE),
$self->{sslca} ? (SSL_verifycn_scheme => "none") : (),
$self->{sslversion} ? (SSL_version => $self->{sslversion}) : (),
$self->{sslciphers} ? (SSL_cipher_list => $self->{sslciphers}) : (),
) or die ref($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: $!";
}
if ($self->{listenproto} ne "udp") {
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 close {
my $self = shift;
$self->{ls}->close()
or die ref($self)," ",ref($self->{ls}),
" socket close failed: $!,$SSL_ERROR";
delete $self->{ls};
return $self;
}
sub run {
my $self = shift;
Proc::run($self, @_);
return $self->close();
}
sub child {
my $self = shift;
# TLS 1.3 writes multiple messages without acknowledgement.
# If the other side closes early, we want broken pipe error.
$SIG{PIPE} = 'IGNORE' if $self->{listenproto} eq "tls";
my $as = $self->{ls};
if ($self->{listenproto} ne "udp") {
$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->{listenproto} eq "tls") {
print STDERR "ssl version: ",$as->get_sslversion(),"\n";
print STDERR "ssl cipher: ",$as->get_cipher(),"\n";
print STDERR "ssl subject: ", $as->peer_certificate("subject")
,"\n" if $self->{sslca};
}
*STDIN = *STDOUT = $self->{as} = $as;
}
1;
|
