1# $OpenBSD: Server.pm,v 1.15 2021/12/22 11:50:28 bluhm Exp $ 2 3# Copyright (c) 2010-2021 Alexander Bluhm <bluhm@openbsd.org> 4# 5# Permission to use, copy, modify, and distribute this software for any 6# purpose with or without fee is hereby granted, provided that the above 7# copyright notice and this permission notice appear in all copies. 8# 9# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 17use strict; 18use warnings; 19 20package Server; 21use parent 'Proc'; 22use Carp; 23use Config; 24use Socket qw(:DEFAULT IPPROTO_TCP TCP_NODELAY); 25use Socket6; 26use IO::Socket::IP; 27use IO::Socket::SSL; 28 29sub new { 30 my $class = shift; 31 my %args = @_; 32 $args{logfile} ||= "server.log"; 33 $args{up} ||= "Accepted"; 34 my $self = Proc::new($class, %args); 35 $self->{listendomain} 36 or croak "$class listen domain not given"; 37 $SSL_ERROR = ""; 38 my $iosocket = $self->{ssl} ? "IO::Socket::SSL" : "IO::Socket::IP"; 39 my $ls = $iosocket->new( 40 Proto => "tcp", 41 ReuseAddr => 1, 42 Domain => $self->{listendomain}, 43 # IO::Socket::IP calls the domain family 44 Family => $self->{listendomain}, 45 $self->{listenaddr} ? (LocalAddr => $self->{listenaddr}) : (), 46 $self->{listenport} ? (LocalPort => $self->{listenport}) : (), 47 SSL_server => 1, 48 SSL_key_file => "server.key", 49 SSL_cert_file => "server.crt", 50 SSL_verify_mode => SSL_VERIFY_NONE, 51 ) or die ref($self), " $iosocket socket failed: $!,$SSL_ERROR"; 52 if ($self->{sndbuf}) { 53 setsockopt($ls, SOL_SOCKET, SO_SNDBUF, 54 pack('i', $self->{sndbuf})) 55 or die ref($self), " set SO_SNDBUF failed: $!"; 56 } 57 if ($self->{rcvbuf}) { 58 setsockopt($ls, SOL_SOCKET, SO_RCVBUF, 59 pack('i', $self->{rcvbuf})) 60 or die ref($self), " set SO_RCVBUF failed: $!"; 61 } 62 my $packstr = $Config{longsize} == 8 ? 'ql!' : 63 $Config{byteorder} == 1234 ? 'lxxxxl!xxxx' : 'xxxxll!'; 64 if ($self->{sndtimeo}) { 65 setsockopt($ls, SOL_SOCKET, SO_SNDTIMEO, 66 pack($packstr, $self->{sndtimeo}, 0)) 67 or die ref($self), " set SO_SNDTIMEO failed: $!"; 68 } 69 if ($self->{rcvtimeo}) { 70 setsockopt($ls, SOL_SOCKET, SO_RCVTIMEO, 71 pack($packstr, $self->{rcvtimeo}, 0)) 72 or die ref($self), " set SO_RCVTIMEO failed: $!"; 73 } 74 setsockopt($ls, IPPROTO_TCP, TCP_NODELAY, pack('i', 1)) 75 or die ref($self), " set TCP_NODELAY failed: $!"; 76 listen($ls, 1) 77 or die ref($self), " socket listen failed: $!"; 78 my $log = $self->{log}; 79 print $log "listen sock: ",$ls->sockhost()," ",$ls->sockport(),"\n"; 80 $self->{listenaddr} = $ls->sockhost() unless $self->{listenaddr}; 81 $self->{listenport} = $ls->sockport() unless $self->{listenport}; 82 $self->{ls} = $ls; 83 return $self; 84} 85 86sub child { 87 my $self = shift; 88 89 # in case we redo the accept, shutdown the old one 90 shutdown(\*STDOUT, SHUT_WR); 91 delete $self->{as}; 92 93 my $as = $self->{ls}->accept() 94 or die ref($self)," ",ref($self->{ls}), 95 " socket accept failed: $!,$SSL_ERROR"; 96 print STDERR "accept sock: ",$as->sockhost()," ",$as->sockport(),"\n"; 97 print STDERR "accept peer: ",$as->peerhost()," ",$as->peerport(),"\n"; 98 if ($self->{ssl}) { 99 print STDERR "ssl version: ",$as->get_sslversion(),"\n"; 100 print STDERR "ssl cipher: ",$as->get_cipher(),"\n"; 101 print STDERR "ssl peer certificate:\n", 102 $as->dump_peer_certificate(); 103 } 104 105 *STDIN = *STDOUT = $self->{as} = $as; 106} 107 1081; 109