diff options
Diffstat (limited to 'openssl-1.1.0h/util/perl/TLSProxy/Proxy.pm')
| -rw-r--r-- | openssl-1.1.0h/util/perl/TLSProxy/Proxy.pm | 553 |
1 files changed, 553 insertions, 0 deletions
diff --git a/openssl-1.1.0h/util/perl/TLSProxy/Proxy.pm b/openssl-1.1.0h/util/perl/TLSProxy/Proxy.pm new file mode 100644 index 0000000..de14362 --- /dev/null +++ b/openssl-1.1.0h/util/perl/TLSProxy/Proxy.pm @@ -0,0 +1,553 @@ +# Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved. +# +# Licensed under the OpenSSL license (the "License"). You may not use +# this file except in compliance with the License. You can obtain a copy +# in the file LICENSE in the source distribution or at +# https://www.openssl.org/source/license.html + +use strict; +use POSIX ":sys_wait_h"; + +package TLSProxy::Proxy; + +use File::Spec; +use IO::Socket; +use IO::Select; +use TLSProxy::Record; +use TLSProxy::Message; +use TLSProxy::ClientHello; +use TLSProxy::ServerHello; +use TLSProxy::ServerKeyExchange; +use TLSProxy::NewSessionTicket; +use Time::HiRes qw/usleep/; + +my $have_IPv6 = 0; +my $IP_factory; + +sub new +{ + my $class = shift; + my ($filter, + $execute, + $cert, + $debug) = @_; + + my $self = { + #Public read/write + proxy_addr => "localhost", + proxy_port => 4453, + server_addr => "localhost", + server_port => 4443, + filter => $filter, + serverflags => "", + clientflags => "", + serverconnects => 1, + serverpid => 0, + clientpid => 0, + reneg => 0, + + #Public read + execute => $execute, + cert => $cert, + debug => $debug, + cipherc => "", + ciphers => "AES128-SHA", + flight => -1, + direction => -1, + partial => ["", ""], + record_list => [], + message_list => [], + }; + + # IO::Socket::IP is on the core module list, IO::Socket::INET6 isn't. + # However, IO::Socket::INET6 is older and is said to be more widely + # deployed for the moment, and may have less bugs, so we try the latter + # first, then fall back on the code modules. Worst case scenario, we + # fall back to IO::Socket::INET, only supports IPv4. + eval { + require IO::Socket::INET6; + my $s = IO::Socket::INET6->new( + LocalAddr => "::1", + LocalPort => 0, + Listen=>1, + ); + $s or die "\n"; + $s->close(); + }; + if ($@ eq "") { + $IP_factory = sub { IO::Socket::INET6->new(@_); }; + $have_IPv6 = 1; + } else { + eval { + require IO::Socket::IP; + my $s = IO::Socket::IP->new( + LocalAddr => "::1", + LocalPort => 0, + Listen=>1, + ); + $s or die "\n"; + $s->close(); + }; + if ($@ eq "") { + $IP_factory = sub { IO::Socket::IP->new(@_); }; + $have_IPv6 = 1; + } else { + $IP_factory = sub { IO::Socket::INET->new(@_); }; + } + } + + # Create the Proxy socket + my $proxaddr = $self->{proxy_addr}; + $proxaddr =~ s/[\[\]]//g; # Remove [ and ] + my @proxyargs = ( + LocalHost => $proxaddr, + LocalPort => $self->{proxy_port}, + Proto => "tcp", + Listen => SOMAXCONN, + ); + push @proxyargs, ReuseAddr => 1 + unless $^O eq "MSWin32"; + $self->{proxy_sock} = $IP_factory->(@proxyargs); + + if ($self->{proxy_sock}) { + print "Proxy started on port ".$self->{proxy_port}."\n"; + } else { + warn "Failed creating proxy socket (".$proxaddr.",".$self->{proxy_port}."): $!\n"; + } + + return bless $self, $class; +} + +sub DESTROY +{ + my $self = shift; + + $self->{proxy_sock}->close() if $self->{proxy_sock}; +} + +sub clearClient +{ + my $self = shift; + + $self->{cipherc} = ""; + $self->{flight} = -1; + $self->{direction} = -1; + $self->{partial} = ["", ""]; + $self->{record_list} = []; + $self->{message_list} = []; + $self->{clientflags} = ""; + $self->{clientpid} = 0; + + TLSProxy::Message->clear(); + TLSProxy::Record->clear(); +} + +sub clear +{ + my $self = shift; + + $self->clearClient; + $self->{ciphers} = "AES128-SHA"; + $self->{serverflags} = ""; + $self->{serverconnects} = 1; + $self->{serverpid} = 0; + $self->{reneg} = 0; +} + +sub restart +{ + my $self = shift; + + $self->clear; + $self->start; +} + +sub clientrestart +{ + my $self = shift; + + $self->clear; + $self->clientstart; +} + +sub start +{ + my ($self) = shift; + my $pid; + + if ($self->{proxy_sock} == 0) { + return 0; + } + + $pid = fork(); + if ($pid == 0) { + my $execcmd = $self->execute + ." s_server -max_protocol TLSv1.2 -no_comp -rev -engine ossltest -accept " + .($self->server_port) + ." -cert ".$self->cert." -naccept ".$self->serverconnects; + unless ($self->supports_IPv6) { + $execcmd .= " -4"; + } + if ($self->ciphers ne "") { + $execcmd .= " -cipher ".$self->ciphers; + } + if ($self->serverflags ne "") { + $execcmd .= " ".$self->serverflags; + } + if ($self->debug) { + print STDERR "Server command: $execcmd\n"; + } + exec($execcmd); + } + $self->serverpid($pid); + + return $self->clientstart; +} + +sub clientstart +{ + my ($self) = shift; + my $oldstdout; + + if ($self->execute) { + my $pid = fork(); + if ($pid == 0) { + my $echostr; + if ($self->reneg()) { + $echostr = "R"; + } else { + $echostr = "test"; + } + my $execcmd = "echo ".$echostr." | ".$self->execute + ." s_client -max_protocol TLSv1.2 -engine ossltest -connect " + .($self->proxy_addr).":".($self->proxy_port); + unless ($self->supports_IPv6) { + $execcmd .= " -4"; + } + if ($self->cipherc ne "") { + $execcmd .= " -cipher ".$self->cipherc; + } + if ($self->clientflags ne "") { + $execcmd .= " ".$self->clientflags; + } + if ($self->debug) { + print STDERR "Client command: $execcmd\n"; + } + exec($execcmd); + } + $self->clientpid($pid); + } + + # Wait for incoming connection from client + my $client_sock; + if(!($client_sock = $self->{proxy_sock}->accept())) { + warn "Failed accepting incoming connection: $!\n"; + return 0; + } + + print "Connection opened\n"; + + # Now connect to the server + my $retry = 50; + my $server_sock; + #We loop over this a few times because sometimes s_server can take a while + #to start up + do { + my $servaddr = $self->server_addr; + $servaddr =~ s/[\[\]]//g; # Remove [ and ] + eval { + $server_sock = $IP_factory->( + PeerAddr => $servaddr, + PeerPort => $self->server_port, + MultiHomed => 1, + Proto => 'tcp' + ); + }; + + $retry--; + #Some buggy IP factories can return a defined server_sock that hasn't + #actually connected, so we check peerport too + if ($@ || !defined($server_sock) || !defined($server_sock->peerport)) { + $server_sock->close() if defined($server_sock); + undef $server_sock; + if ($retry) { + #Sleep for a short while + select(undef, undef, undef, 0.1); + } else { + warn "Failed to start up server (".$servaddr.",".$self->server_port."): $!\n"; + return 0; + } + } + } while (!$server_sock); + + my $sel = IO::Select->new($server_sock, $client_sock); + my $indata; + my @handles = ($server_sock, $client_sock); + + #Wait for either the server socket or the client socket to become readable + my @ready; + local $SIG{PIPE} = "IGNORE"; + while(!(TLSProxy::Message->end) && (@ready = $sel->can_read)) { + foreach my $hand (@ready) { + if ($hand == $server_sock) { + $server_sock->sysread($indata, 16384) or goto END; + $indata = $self->process_packet(1, $indata); + $client_sock->syswrite($indata); + } elsif ($hand == $client_sock) { + $client_sock->sysread($indata, 16384) or goto END; + $indata = $self->process_packet(0, $indata); + $server_sock->syswrite($indata); + } else { + print "Err\n"; + goto END; + } + } + } + + END: + print "Connection closed\n"; + if($server_sock) { + $server_sock->close(); + } + if($client_sock) { + #Closing this also kills the child process + $client_sock->close(); + } + if(!$self->debug) { + select($oldstdout); + } + $self->serverconnects($self->serverconnects - 1); + if ($self->serverconnects == 0) { + die "serverpid is zero\n" if $self->serverpid == 0; + print "Waiting for server process to close: " + .$self->serverpid."\n"; + waitpid( $self->serverpid, 0); + die "exit code $? from server process\n" if $? != 0; + } else { + # Give s_server sufficient time to finish what it was doing + usleep(250000); + } + die "clientpid is zero\n" if $self->clientpid == 0; + print "Waiting for client process to close: ".$self->clientpid."\n"; + waitpid($self->clientpid, 0); + + return 1; +} + +sub process_packet +{ + my ($self, $server, $packet) = @_; + my $len_real; + my $decrypt_len; + my $data; + my $recnum; + + if ($server) { + print "Received server packet\n"; + } else { + print "Received client packet\n"; + } + + if ($self->{direction} != $server) { + $self->{flight} = $self->{flight} + 1; + $self->{direction} = $server; + } + + print "Packet length = ".length($packet)."\n"; + print "Processing flight ".$self->flight."\n"; + + #Return contains the list of record found in the packet followed by the + #list of messages in those records and any partial message + my @ret = TLSProxy::Record->get_records($server, $self->flight, $self->{partial}[$server].$packet); + $self->{partial}[$server] = $ret[2]; + push @{$self->record_list}, @{$ret[0]}; + push @{$self->{message_list}}, @{$ret[1]}; + + print "\n"; + + if (scalar(@{$ret[0]}) == 0 or length($ret[2]) != 0) { + return ""; + } + + #Finished parsing. Call user provided filter here + if (defined $self->filter) { + $self->filter->($self); + } + + #Reconstruct the packet + $packet = ""; + foreach my $record (@{$self->record_list}) { + $packet .= $record->reconstruct_record(); + } + + print "Forwarded packet length = ".length($packet)."\n\n"; + + return $packet; +} + +#Read accessors +sub execute +{ + my $self = shift; + return $self->{execute}; +} +sub cert +{ + my $self = shift; + return $self->{cert}; +} +sub debug +{ + my $self = shift; + return $self->{debug}; +} +sub flight +{ + my $self = shift; + return $self->{flight}; +} +sub record_list +{ + my $self = shift; + return $self->{record_list}; +} +sub success +{ + my $self = shift; + return $self->{success}; +} +sub end +{ + my $self = shift; + return $self->{end}; +} +sub supports_IPv6 +{ + my $self = shift; + return $have_IPv6; +} +sub proxy_addr +{ + my $self = shift; + return $self->{proxy_addr}; +} +sub proxy_port +{ + my $self = shift; + return $self->{proxy_port}; +} + +#Read/write accessors +sub server_addr +{ + my $self = shift; + if (@_) { + $self->{server_addr} = shift; + } + return $self->{server_addr}; +} +sub server_port +{ + my $self = shift; + if (@_) { + $self->{server_port} = shift; + } + return $self->{server_port}; +} +sub filter +{ + my $self = shift; + if (@_) { + $self->{filter} = shift; + } + return $self->{filter}; +} +sub cipherc +{ + my $self = shift; + if (@_) { + $self->{cipherc} = shift; + } + return $self->{cipherc}; +} +sub ciphers +{ + my $self = shift; + if (@_) { + $self->{ciphers} = shift; + } + return $self->{ciphers}; +} +sub serverflags +{ + my $self = shift; + if (@_) { + $self->{serverflags} = shift; + } + return $self->{serverflags}; +} +sub clientflags +{ + my $self = shift; + if (@_) { + $self->{clientflags} = shift; + } + return $self->{clientflags}; +} +sub serverconnects +{ + my $self = shift; + if (@_) { + $self->{serverconnects} = shift; + } + return $self->{serverconnects}; +} +# This is a bit ugly because the caller is responsible for keeping the records +# in sync with the updated message list; simply updating the message list isn't +# sufficient to get the proxy to forward the new message. +# But it does the trick for the one test (test_sslsessiontick) that needs it. +sub message_list +{ + my $self = shift; + if (@_) { + $self->{message_list} = shift; + } + return $self->{message_list}; +} +sub serverpid +{ + my $self = shift; + if (@_) { + $self->{serverpid} = shift; + } + return $self->{serverpid}; +} +sub clientpid +{ + my $self = shift; + if (@_) { + $self->{clientpid} = shift; + } + return $self->{clientpid}; +} + +sub fill_known_data +{ + my $length = shift; + my $ret = ""; + for (my $i = 0; $i < $length; $i++) { + $ret .= chr($i); + } + return $ret; +} + +sub reneg +{ + my $self = shift; + if (@_) { + $self->{reneg} = shift; + } + return $self->{reneg}; +} + +1; |