#! /usr/bin/env perl
-# Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
+# Copyright 2016-2024 The OpenSSL Project Authors. All Rights Reserved.
#
-# Licensed under the OpenSSL license (the "License"). You may not use
+# Licensed under the Apache License 2.0 (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 feature 'state';
+
use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file bldtop_dir/;
use OpenSSL::Test::Utils;
use TLSProxy::Proxy;
+use TLSProxy::Message;
my $test_name = "test_sslrecords";
setup($test_name);
plan skip_all => "TLSProxy isn't usable on $^O"
- if $^O =~ /^(VMS|MSWin32)$/;
+ if $^O =~ /^(VMS)$/;
plan skip_all => "$test_name needs the dynamic engine feature enabled"
if disabled("engine") || disabled("dynamic-engine");
plan skip_all => "$test_name needs the sock feature enabled"
if disabled("sock");
-plan skip_all => "$test_name needs TLSv1.2 enabled"
- if disabled("tls1_2");
-
-$ENV{OPENSSL_ia32cap} = '~0x200000200000000';
-my $proxy = TLSProxy::Proxy->new(
- \&add_empty_recs_filter,
- cmdstr(app(["openssl"]), display => 1),
- srctop_file("apps", "server.pem"),
- (!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})
-);
-
-#Test 1: Injecting out of context empty records should fail
-my $content_type = TLSProxy::Record::RT_APPLICATION_DATA;
-my $inject_recs_num = 1;
-$proxy->serverflags("-tls1_2");
-$proxy->start() or plan skip_all => "Unable to start up Proxy for tests";
-my $num_tests = 11;
-if (!disabled("tls1_1")) {
- $num_tests++;
-}
-if (!disabled("tls1_3")) {
- $num_tests++;
+my $inject_recs_num = undef;
+my $content_type = undef;
+my $boundary_test_type = undef;
+my $fatal_alert = undef; # set by filters at expected fatal alerts
+my $sslv2testtype = undef;
+my $proxy_start_success = 0;
+
+plan tests => 42;
+
+SKIP: {
+ skip "TLS 1.2 is disabled", 21 if disabled("tls1_2");
+ # Run tests with TLS
+ run_tests(0);
}
-plan tests => $num_tests;
-ok(TLSProxy::Message->fail(), "Out of context empty records test");
-
-#Test 2: Injecting in context empty records should succeed
-$proxy->clear();
-$content_type = TLSProxy::Record::RT_HANDSHAKE;
-$proxy->serverflags("-tls1_2");
-$proxy->start();
-ok(TLSProxy::Message->success(), "In context empty records test");
-
-#Test 3: Injecting too many in context empty records should fail
-$proxy->clear();
-#We allow 32 consecutive in context empty records
-$inject_recs_num = 33;
-$proxy->serverflags("-tls1_2");
-$proxy->start();
-ok(TLSProxy::Message->fail(), "Too many in context empty records test");
-
-#Test 4: Injecting a fragmented fatal alert should fail. We actually expect no
-# alerts to be sent from either side because *we* injected the fatal
-# alert, i.e. this will look like a disorderly close
-$proxy->clear();
-$proxy->filter(\&add_frag_alert_filter);
-$proxy->serverflags("-tls1_2");
-$proxy->start();
-ok(!TLSProxy::Message->end(), "Fragmented alert records test");
-
-#Run some SSLv2 ClientHello tests
-
-use constant {
- TLSV1_2_IN_SSLV2 => 0,
- SSLV2_IN_SSLV2 => 1,
- FRAGMENTED_IN_TLSV1_2 => 2,
- FRAGMENTED_IN_SSLV2 => 3,
- ALERT_BEFORE_SSLV2 => 4
-};
-#Test 5: Inject an SSLv2 style record format for a TLSv1.2 ClientHello
-my $sslv2testtype = TLSV1_2_IN_SSLV2;
-$proxy->clear();
-$proxy->filter(\&add_sslv2_filter);
-$proxy->serverflags("-tls1_2");
-$proxy->start();
-ok(TLSProxy::Message->success(), "TLSv1.2 in SSLv2 ClientHello test");
-
-#Test 6: Inject an SSLv2 style record format for an SSLv2 ClientHello. We don't
-# support this so it should fail. We actually treat it as an unknown
-# protocol so we don't even send an alert in this case.
-$sslv2testtype = SSLV2_IN_SSLV2;
-$proxy->clear();
-$proxy->serverflags("-tls1_2");
-$proxy->start();
-ok(!TLSProxy::Message->end(), "SSLv2 in SSLv2 ClientHello test");
-
-#Test 7: Sanity check ClientHello fragmentation. This isn't really an SSLv2 test
-# at all, but it gives us confidence that Test 8 fails for the right
-# reasons
-$sslv2testtype = FRAGMENTED_IN_TLSV1_2;
-$proxy->clear();
-$proxy->serverflags("-tls1_2");
-$proxy->start();
-ok(TLSProxy::Message->success(), "Fragmented ClientHello in TLSv1.2 test");
-
-#Test 8: Fragment a TLSv1.2 ClientHello across a TLS1.2 record; an SSLv2
-# record; and another TLS1.2 record. This isn't allowed so should fail
-$sslv2testtype = FRAGMENTED_IN_SSLV2;
-$proxy->clear();
-$proxy->serverflags("-tls1_2");
-$proxy->start();
-ok(TLSProxy::Message->fail(), "Fragmented ClientHello in TLSv1.2/SSLv2 test");
-
-#Test 9: Send a TLS warning alert before an SSLv2 ClientHello. This should
-# fail because an SSLv2 ClientHello must be the first record.
-$sslv2testtype = ALERT_BEFORE_SSLV2;
-$proxy->clear();
-$proxy->serverflags("-tls1_2");
-$proxy->start();
-ok(TLSProxy::Message->fail(), "Alert before SSLv2 ClientHello test");
-
-#Unregcognised record type tests
-
-#Test 10: Sending an unrecognised record type in TLS1.2 should fail
-$proxy->clear();
-$proxy->filter(\&add_unknown_record_type);
-$proxy->start();
-ok(TLSProxy::Message->fail(), "Unrecognised record type in TLS1.2");
-
-#Test 11: Sending an unrecognised record type in TLS1.1 should fail
-if (!disabled("tls1_1")) {
- $proxy->clear();
- $proxy->clientflags("-tls1_1");
- $proxy->start();
- ok(TLSProxy::Message->fail(), "Unrecognised record type in TLS1.1");
+
+SKIP: {
+ skip "DTLS 1.2 is disabled", 21 if disabled("dtls1_2");
+ skip "DTLSProxy does not work on Windows", 21 if $^O =~ /^(MSWin32)$/;
+ run_tests(1);
}
-#Test 12: Sending a different record version in TLS1.2 should fail
-$proxy->clear();
-$proxy->clientflags("-tls1_2");
-$proxy->filter(\&change_version);
-$proxy->start();
-ok(TLSProxy::Message->fail(), "Changed record version in TLS1.2");
+sub run_tests
+{
+ my $run_test_as_dtls = shift;
+
+ my $proxy;
+ if ($run_test_as_dtls == 1) {
+ $proxy = TLSProxy::Proxy->new_dtls(
+ \&add_empty_recs_filter,
+ cmdstr(app([ "openssl" ]), display => 1),
+ srctop_file("apps", "server.pem"),
+ (!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})
+ );
+ } else {
+ $proxy = TLSProxy::Proxy->new(
+ \&add_empty_recs_filter,
+ cmdstr(app([ "openssl" ]), display => 1),
+ srctop_file("apps", "server.pem"),
+ (!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})
+ );
+ }
+
+ $fatal_alert = 0; # set by filters at expected fatal alerts
+ SKIP: {
+ skip "Record tests not intended for dtls", 1 if $run_test_as_dtls == 1;
+ #Test 1: Injecting out of context empty records should fail
+ $proxy->clear();
+ $content_type = TLSProxy::Record::RT_APPLICATION_DATA;
+ $inject_recs_num = 1;
+ $fatal_alert = 0;
+ $proxy->serverflags("-tls1_2");
+ $proxy->clientflags("-no_tls1_3");
+ $proxy_start_success = $proxy->start();
+ ok($fatal_alert, "Out of context empty records test");
+ }
-#Test 13: Sending a different record version in TLS1.3 should succeed
-if (!disabled("tls1_3")) {
+ skip "TLSProxy did not start correctly", 21 if $proxy_start_success == 0
+ && $run_test_as_dtls == 0;
+
+ #Test 2: Injecting in context empty records should succeed
$proxy->clear();
- $proxy->filter(\&change_version);
- $proxy->start();
- ok(TLSProxy::Message->success(), "Changed record version in TLS1.3");
+ $content_type = TLSProxy::Record::RT_HANDSHAKE;
+ if ($run_test_as_dtls == 1) {
+ $proxy->serverflags("-min_protocol DTLSv1.2 -max_protocol DTLSv1.2");
+ $proxy->clientflags("-max_protocol DTLSv1.2");
+ } else {
+ $proxy->serverflags("-tls1_2");
+ $proxy->clientflags("-no_tls1_3");
+ }
+ $proxy_start_success = $proxy->start();
+
+ skip "TLSProxy did not start correctly", 20 if $proxy_start_success == 0
+ && $run_test_as_dtls == 1;
+
+ ok($proxy_start_success && TLSProxy::Message->success(),
+ "In context empty records test".($run_test_as_dtls == 1) ? " for DTLS" : " for TLS");
+
+ SKIP: {
+ skip "Record tests not intended for dtls", 7 if $run_test_as_dtls == 1;
+ #Test 3: Injecting too many in context empty records should fail
+ $fatal_alert = 0;
+ $proxy->clear();
+ #We allow 32 consecutive in context empty records
+ $inject_recs_num = 33;
+ $proxy->serverflags("-tls1_2");
+ $proxy->clientflags("-no_tls1_3");
+ $proxy->start();
+ ok($fatal_alert, "Too many in context empty records test");
+
+ #Test 4: Injecting a fragmented fatal alert should fail. We expect the server to
+ # send back an alert of its own because it cannot handle fragmented
+ # alerts
+ $fatal_alert = 0;
+ $proxy->clear();
+ $proxy->filter(\&add_frag_alert_filter);
+ $proxy->serverflags("-tls1_2");
+ $proxy->clientflags("-no_tls1_3");
+ $proxy->start();
+ ok($fatal_alert, "Fragmented alert records test");
+
+ #Run some SSLv2 ClientHello tests
+
+ use constant {
+ TLSV1_2_IN_SSLV2 => 0,
+ SSLV2_IN_SSLV2 => 1,
+ FRAGMENTED_IN_TLSV1_2 => 2,
+ FRAGMENTED_IN_SSLV2 => 3,
+ ALERT_BEFORE_SSLV2 => 4
+ };
+
+ # The TLSv1.2 in SSLv2 ClientHello need to run at security level 0
+ # because in a SSLv2 ClientHello we can't send extensions to indicate
+ # which signature algorithm we want to use, and the default is SHA1.
+
+ #Test 5: Inject an SSLv2 style record format for a TLSv1.2 ClientHello
+ $sslv2testtype = TLSV1_2_IN_SSLV2;
+ $proxy->clear();
+ $proxy->filter(\&add_sslv2_filter);
+ $proxy->serverflags("-tls1_2");
+ $proxy->clientflags("-no_tls1_3 -legacy_renegotiation");
+ $proxy->ciphers("AES128-SHA:\@SECLEVEL=0");
+ $proxy->start();
+ ok(TLSProxy::Message->success(), "TLSv1.2 in SSLv2 ClientHello test");
+
+ #Test 6: Inject an SSLv2 style record format for an SSLv2 ClientHello. We don't
+ # support this so it should fail. We actually treat it as an unknown
+ # protocol so we don't even send an alert in this case.
+ $sslv2testtype = SSLV2_IN_SSLV2;
+ $proxy->clear();
+ $proxy->serverflags("-tls1_2");
+ $proxy->clientflags("-no_tls1_3");
+ $proxy->ciphers("AES128-SHA:\@SECLEVEL=0");
+ $proxy->start();
+ ok(TLSProxy::Message->fail(), "SSLv2 in SSLv2 ClientHello test");
+
+ #Test 7: Sanity check ClientHello fragmentation. This isn't really an SSLv2 test
+ # at all, but it gives us confidence that Test 8 fails for the right
+ # reasons
+ $sslv2testtype = FRAGMENTED_IN_TLSV1_2;
+ $proxy->clear();
+ $proxy->serverflags("-tls1_2");
+ $proxy->clientflags("-no_tls1_3");
+ $proxy->ciphers("AES128-SHA:\@SECLEVEL=0");
+ $proxy->start();
+ ok(TLSProxy::Message->success(), "Fragmented ClientHello in TLSv1.2 test");
+
+ #Test 8: Fragment a TLSv1.2 ClientHello across a TLS1.2 record; an SSLv2
+ # record; and another TLS1.2 record. This isn't allowed so should fail
+ $sslv2testtype = FRAGMENTED_IN_SSLV2;
+ $proxy->clear();
+ $proxy->serverflags("-tls1_2");
+ $proxy->clientflags("-no_tls1_3");
+ $proxy->ciphers("AES128-SHA:\@SECLEVEL=0");
+ $proxy->start();
+ ok(TLSProxy::Message->fail(), "Fragmented ClientHello in TLSv1.2/SSLv2 test");
+
+ #Test 9: Send a TLS warning alert before an SSLv2 ClientHello. This should
+ # fail because an SSLv2 ClientHello must be the first record.
+ $sslv2testtype = ALERT_BEFORE_SSLV2;
+ $proxy->clear();
+ $proxy->serverflags("-tls1_2");
+ $proxy->clientflags("-no_tls1_3");
+ $proxy->ciphers("AES128-SHA:\@SECLEVEL=0");
+ $proxy->start();
+ ok(TLSProxy::Message->fail(), "Alert before SSLv2 ClientHello test");
+ }
+ #Unrecognised record type tests
+
+ #Test 10: Sending an unrecognised record type in TLS1.2 should fail
+ $fatal_alert = 0;
+ $proxy->clear();
+ if ($run_test_as_dtls == 1) {
+ $proxy->serverflags("-min_protocol DTLSv1.2 -max_protocol DTLSv1.2");
+ $proxy->clientflags("-max_protocol DTLSv1.2");
+ } else {
+ $proxy->serverflags("-tls1_2");
+ $proxy->clientflags("-no_tls1_3");
+ }
+ $proxy->filter(\&add_unknown_record_type);
+ $proxy_start_success = $proxy->start();
+
+ if ($run_test_as_dtls == 1) {
+ ok($proxy_start_success == 0, "Unrecognised record type in DTLS1.2");
+ } else {
+ ok($fatal_alert, "Unrecognised record type in TLS1.2");
+ }
+
+ SKIP: {
+ skip "TLSv1.1 or DTLSv1 disabled", 1 if ($run_test_as_dtls == 0 && disabled("tls1_1"))
+ || ($run_test_as_dtls == 1 && disabled("dtls1"));
+
+ #Test 11: Sending an unrecognised record type in TLS1.1 should fail
+ $fatal_alert = 0;
+ $proxy->clear();
+ if ($run_test_as_dtls == 1) {
+ $proxy->clientflags("-min_protocol DTLSv1 -max_protocol DTLSv1 -cipher DEFAULT:\@SECLEVEL=0");
+ } else {
+ $proxy->clientflags("-tls1_1 -cipher DEFAULT:\@SECLEVEL=0");
+ }
+ $proxy->ciphers("AES128-SHA:\@SECLEVEL=0");
+ $proxy_start_success = $proxy->start();
+ if ($run_test_as_dtls == 1) {
+ ok($proxy_start_success == 0, "Unrecognised record type in DTLSv1");
+ } else {
+ ok($fatal_alert, "Unrecognised record type in TLSv1.1");
+ }
+ }
+
+ SKIP: {
+ skip "Record tests not intended for dtls", 10 if $run_test_as_dtls == 1;
+ #Test 12: Sending a different record version in TLS1.2 should fail
+ $fatal_alert = 0;
+ $proxy->clear();
+ $proxy->clientflags("-tls1_2");
+ $proxy->filter(\&change_version);
+ $proxy->start();
+ ok($fatal_alert, "Changed record version in TLS1.2");
+
+ #TLS1.3 specific tests
+ SKIP: {
+ skip "TLSv1.3 disabled", 9
+ if disabled("tls1_3") || (disabled("ec") && disabled("dh"));
+
+ #Test 13: Sending a different record version in TLS1.3 should fail
+ $proxy->clear();
+ $proxy->filter(\&change_version);
+ $proxy->start();
+ ok(TLSProxy::Message->fail(), "Changed record version in TLS1.3");
+
+ #Test 14: Sending an unrecognised record type in TLS1.3 should fail
+ $fatal_alert = 0;
+ $proxy->clear();
+ $proxy->filter(\&add_unknown_record_type);
+ $proxy->start();
+ ok($fatal_alert, "Unrecognised record type in TLS1.3");
+
+ #Test 15: Sending an outer record type other than app data once encrypted
+ #should fail
+ $fatal_alert = 0;
+ $proxy->clear();
+ $proxy->filter(\&change_outer_record_type);
+ $proxy->start();
+ ok($fatal_alert, "Wrong outer record type in TLS1.3");
+
+ use constant {
+ DATA_AFTER_SERVER_HELLO => 0,
+ DATA_AFTER_FINISHED => 1,
+ DATA_AFTER_KEY_UPDATE => 2,
+ DATA_BETWEEN_KEY_UPDATE => 3,
+ NO_DATA_BETWEEN_KEY_UPDATE => 4,
+ };
+
+ #Test 16: Sending a ServerHello which doesn't end on a record boundary
+ # should fail
+ $fatal_alert = 0;
+ $proxy->clear();
+ $boundary_test_type = DATA_AFTER_SERVER_HELLO;
+ $proxy->filter(\¬_on_record_boundary);
+ $proxy->start();
+ ok($fatal_alert, "Record not on boundary in TLS1.3 (ServerHello)");
+
+ #Test 17: Sending a Finished which doesn't end on a record boundary
+ # should fail
+ $fatal_alert = 0;
+ $proxy->clear();
+ $boundary_test_type = DATA_AFTER_FINISHED;
+ $proxy->start();
+ ok($fatal_alert, "Record not on boundary in TLS1.3 (Finished)");
+
+ #Test 18: Sending a KeyUpdate which doesn't end on a record boundary
+ # should fail
+ $fatal_alert = 0;
+ $proxy->clear();
+ $boundary_test_type = DATA_AFTER_KEY_UPDATE;
+ $proxy->start();
+ ok($fatal_alert, "Record not on boundary in TLS1.3 (KeyUpdate)");
+
+ #Test 19: Sending application data in the middle of a fragmented KeyUpdate
+ # should fail. Strictly speaking this is not a record boundary test
+ # but we use the same filter.
+ $fatal_alert = 0;
+ $proxy->clear();
+ $boundary_test_type = DATA_BETWEEN_KEY_UPDATE;
+ $proxy->start();
+ ok($fatal_alert, "Data between KeyUpdate");
+
+ #Test 20: Fragmented KeyUpdate. This should succeed. Strictly speaking this
+ # is not a record boundary test but we use the same filter.
+ $proxy->clear();
+ $boundary_test_type = NO_DATA_BETWEEN_KEY_UPDATE;
+ $proxy->start();
+ ok(TLSProxy::Message->success(), "No data between KeyUpdate");
+
+ SKIP: {
+ skip "EC disabled", 1 if disabled("ec");
+
+ #Test 21: Force an HRR and change the "real" ServerHello to have a protocol
+ # record version of 0x0301 (TLSv1.0). At this point we have already
+ # decided that we are doing TLSv1.3 but are still using plaintext
+ # records. The server should be sending a record version of 0x303
+ # (TLSv1.2), but the RFC requires us to ignore this field so we
+ # should tolerate the incorrect version.
+ $proxy->clear();
+ $proxy->filter(\&change_server_hello_version);
+ $proxy->serverflags("-groups P-256"); # Force an HRR
+ $proxy->start();
+ ok(TLSProxy::Message->success(), "Bad ServerHello record version after HRR");
+ }
+ }
+ }
}
+
sub add_empty_recs_filter
{
my $proxy = shift;
+ my $records = $proxy->record_list;
+ my $isdtls = $proxy->isdtls();
# We're only interested in the initial ClientHello
if ($proxy->flight != 0) {
+ $fatal_alert = 1 if @{$records}[-1]->is_fatal_alert(1) == TLSProxy::Message::AL_DESC_UNEXPECTED_MESSAGE;
return;
}
for (my $i = 0; $i < $inject_recs_num; $i++) {
- my $record = TLSProxy::Record->new(
- 0,
- $content_type,
- TLSProxy::Record::VERS_TLS_1_2,
- 0,
- 0,
- 0,
- 0,
- "",
- ""
- );
-
- push @{$proxy->record_list}, $record;
+ my $record;
+ if ($isdtls == 1) {
+ $record = TLSProxy::Record->new_dtls(
+ 0,
+ $content_type,
+ TLSProxy::Record::VERS_DTLS_1_2,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ "",
+ ""
+ );
+ } else {
+ $record = TLSProxy::Record->new(
+ 0,
+ $content_type,
+ TLSProxy::Record::VERS_TLS_1_2,
+ 0,
+ 0,
+ 0,
+ 0,
+ "",
+ ""
+ );
+ }
+ push @{$records}, $record;
}
}
sub add_frag_alert_filter
{
my $proxy = shift;
+ my $records = $proxy->record_list;
my $byte;
# We're only interested in the initial ClientHello
if ($proxy->flight != 0) {
+ $fatal_alert = 1 if @{$records}[-1]->is_fatal_alert(1) == TLSProxy::Message::AL_DESC_UNEXPECTED_MESSAGE;
return;
}
$byte,
$byte
);
- push @{$proxy->record_list}, $record;
+ push @{$records}, $record;
# And finally the description (Unexpected message) in a third record
$byte = pack('C', TLSProxy::Message::AL_DESC_UNEXPECTED_MESSAGE);
$byte,
$byte
);
- push @{$proxy->record_list}, $record;
+ push @{$records}, $record;
}
sub add_sslv2_filter
sub add_unknown_record_type
{
my $proxy = shift;
+ my $records = $proxy->record_list;
+ my $isdtls = $proxy->isdtls;
+ state $added_record;
# We'll change a record after the initial version neg has taken place
- if ($proxy->flight != 2) {
+ if ($proxy->flight == 0) {
+ $added_record = 0;
+ return;
+ } elsif ($proxy->flight != 1 || $added_record) {
+ $fatal_alert = 1 if @{$records}[-1]->is_fatal_alert(0) == TLSProxy::Message::AL_DESC_UNEXPECTED_MESSAGE;
return;
}
- my $lastrec = ${$proxy->record_list}[-1];
- my $record = TLSProxy::Record->new(
- 2,
- TLSProxy::Record::RT_UNKNOWN,
- $lastrec->version(),
- 1,
- 0,
- 1,
- 1,
- "X",
- "X"
- );
+ my $record;
- unshift @{$proxy->record_list}, $record;
+ if ($isdtls) {
+ $record = TLSProxy::Record->new_dtls(
+ 1,
+ TLSProxy::Record::RT_UNKNOWN,
+ @{$records}[-1]->version(),
+ @{$records}[-1]->epoch(),
+ @{$records}[-1]->seq() +1,
+ 1,
+ 0,
+ 1,
+ 1,
+ "X",
+ "X"
+ );
+ } else {
+ $record = TLSProxy::Record->new(
+ 1,
+ TLSProxy::Record::RT_UNKNOWN,
+ @{$records}[-1]->version(),
+ 1,
+ 0,
+ 1,
+ 1,
+ "X",
+ "X"
+ );
+ }
+
+ #Find ServerHello record and insert after that
+ my $i;
+ for ($i = 0; ${$proxy->record_list}[$i]->flight() < 1; $i++) {
+ next;
+ }
+ $i++;
+
+ splice @{$proxy->record_list}, $i, 0, $record;
+ $added_record = 1;
}
sub change_version
{
my $proxy = shift;
+ my $records = $proxy->record_list;
# We'll change a version after the initial version neg has taken place
- if ($proxy->flight != 2) {
+ if ($proxy->flight != 1) {
+ $fatal_alert = 1 if @{$records}[-1]->is_fatal_alert(0) == TLSProxy::Message::AL_DESC_PROTOCOL_VERSION;
return;
}
- (${$proxy->record_list}[-1])->version(TLSProxy::Record::VERS_TLS_1_1);
+ if ($#{$records} > 1) {
+ # ... typically in ServerHelloDone
+ @{$records}[-1]->version(TLSProxy::Record::VERS_TLS_1_1);
+ }
+}
+
+sub change_server_hello_version
+{
+ my $proxy = shift;
+ my $records = $proxy->record_list;
+
+ # We're only interested in changing the ServerHello after an HRR
+ if ($proxy->flight != 3) {
+ return;
+ }
+
+ # The ServerHello has index 5
+ # 0 - ClientHello
+ # 1 - HRR
+ # 2 - CCS
+ # 3 - ClientHello(2)
+ # 4 - CCS
+ # 5 - ServerHello
+ @{$records}[5]->version(TLSProxy::Record::VERS_TLS_1_0);
+}
+
+sub change_outer_record_type
+{
+ my $proxy = shift;
+ my $records = $proxy->record_list;
+
+ # We'll change a record after the initial version neg has taken place
+ if ($proxy->flight != 1) {
+ $fatal_alert = 1 if @{$records}[-1]->is_fatal_alert(0) == TLSProxy::Message::AL_DESC_UNEXPECTED_MESSAGE;
+ return;
+ }
+
+ # Find CCS record and change record after that
+ my $i = 0;
+ foreach my $record (@{$records}) {
+ last if $record->content_type == TLSProxy::Record::RT_CCS;
+ $i++;
+ }
+ if (defined(${$records}[++$i])) {
+ ${$records}[$i]->outer_content_type(TLSProxy::Record::RT_HANDSHAKE);
+ }
+}
+
+sub not_on_record_boundary
+{
+ my $proxy = shift;
+ my $records = $proxy->record_list;
+ my $data;
+
+ #Find server's first flight
+ if ($proxy->flight != 1) {
+ $fatal_alert = 1 if @{$records}[-1]->is_fatal_alert(0) == TLSProxy::Message::AL_DESC_UNEXPECTED_MESSAGE;
+ return;
+ }
+
+ if ($boundary_test_type == DATA_AFTER_SERVER_HELLO) {
+ #Merge the ServerHello and EncryptedExtensions records into one
+ my $i = 0;
+ foreach my $record (@{$records}) {
+ if ($record->content_type == TLSProxy::Record::RT_HANDSHAKE) {
+ $record->{sent} = 1; # pretend it's sent already
+ last;
+ }
+ $i++;
+ }
+
+ if (defined(${$records}[$i+1])) {
+ $data = ${$records}[$i]->data();
+ $data .= ${$records}[$i+1]->decrypt_data();
+ ${$records}[$i+1]->data($data);
+ ${$records}[$i+1]->len(length $data);
+
+ #Delete the old ServerHello record
+ splice @{$records}, $i, 1;
+ }
+ } elsif ($boundary_test_type == DATA_AFTER_FINISHED) {
+ return if @{$proxy->{message_list}}[-1]->{mt}
+ != TLSProxy::Message::MT_FINISHED;
+
+ my $last_record = @{$records}[-1];
+ $data = $last_record->decrypt_data;
+
+ #Add a KeyUpdate message onto the end of the Finished record
+ my $keyupdate = pack "C5",
+ 0x18, # KeyUpdate
+ 0x00, 0x00, 0x01, # Message length
+ 0x00; # Update not requested
+
+ $data .= $keyupdate;
+
+ #Add content type and tag
+ $data .= pack("C", TLSProxy::Record::RT_HANDSHAKE).("\0"x16);
+
+ #Update the record
+ $last_record->data($data);
+ $last_record->len(length $data);
+ } elsif ($boundary_test_type == DATA_AFTER_KEY_UPDATE) {
+ return if @{$proxy->{message_list}}[-1]->{mt}
+ != TLSProxy::Message::MT_FINISHED;
+
+ #KeyUpdates must end on a record boundary
+
+ my $record = TLSProxy::Record->new(
+ 1,
+ TLSProxy::Record::RT_APPLICATION_DATA,
+ TLSProxy::Record::VERS_TLS_1_2,
+ 0,
+ 0,
+ 0,
+ 0,
+ "",
+ ""
+ );
+
+ #Add two KeyUpdate messages into a single record
+ my $keyupdate = pack "C5",
+ 0x18, # KeyUpdate
+ 0x00, 0x00, 0x01, # Message length
+ 0x00; # Update not requested
+
+ $data = $keyupdate.$keyupdate;
+
+ #Add content type and tag
+ $data .= pack("C", TLSProxy::Record::RT_HANDSHAKE).("\0"x16);
+
+ $record->data($data);
+ $record->len(length $data);
+ push @{$records}, $record;
+ } else {
+ return if @{$proxy->{message_list}}[-1]->{mt}
+ != TLSProxy::Message::MT_FINISHED;
+
+ my $record = TLSProxy::Record->new(
+ 1,
+ TLSProxy::Record::RT_APPLICATION_DATA,
+ TLSProxy::Record::VERS_TLS_1_2,
+ 0,
+ 0,
+ 0,
+ 0,
+ "",
+ ""
+ );
+
+ #Add a partial KeyUpdate message into the record
+ $data = pack "C1",
+ 0x18; # KeyUpdate message type. Omit the rest of the message header
+
+ #Add content type and tag
+ $data .= pack("C", TLSProxy::Record::RT_HANDSHAKE).("\0"x16);
+
+ $record->data($data);
+ $record->len(length $data);
+ push @{$records}, $record;
+
+ if ($boundary_test_type == DATA_BETWEEN_KEY_UPDATE) {
+ #Now add an app data record
+ $record = TLSProxy::Record->new(
+ 1,
+ TLSProxy::Record::RT_APPLICATION_DATA,
+ TLSProxy::Record::VERS_TLS_1_2,
+ 0,
+ 0,
+ 0,
+ 0,
+ "",
+ ""
+ );
+
+ #Add an empty app data record (just content type and tag)
+ $data = pack("C", TLSProxy::Record::RT_APPLICATION_DATA).("\0"x16);
+
+ $record->data($data);
+ $record->len(length $data);
+ push @{$records}, $record;
+ }
+
+ #Now add the rest of the KeyUpdate message
+ $record = TLSProxy::Record->new(
+ 1,
+ TLSProxy::Record::RT_APPLICATION_DATA,
+ TLSProxy::Record::VERS_TLS_1_2,
+ 0,
+ 0,
+ 0,
+ 0,
+ "",
+ ""
+ );
+
+ #Add the last 4 bytes of the KeyUpdate record
+ $data = pack "C4",
+ 0x00, 0x00, 0x01, # Message length
+ 0x00; # Update not requested
+
+ #Add content type and tag
+ $data .= pack("C", TLSProxy::Record::RT_HANDSHAKE).("\0"x16);
+
+ $record->data($data);
+ $record->len(length $data);
+ push @{$records}, $record;
+
+ }
}