/
ssl_agent_unittest.cc
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/
ssl_agent_unittest.cc
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "ssl.h"
#include "sslerr.h"
#include "sslproto.h"
#include <memory>
#include "databuffer.h"
#include "tls_agent.h"
#include "tls_connect.h"
#include "tls_filter.h"
#include "tls_parser.h"
namespace nss_test {
// This is a 1-RTT ClientHello with ECDHE.
const static uint8_t kCannedTls13ClientHello[] = {
0x01, 0x00, 0x00, 0xcf, 0x03, 0x03, 0x6c, 0xb3, 0x46, 0x81, 0xc8, 0x1a,
0xf9, 0xd2, 0x05, 0x97, 0x48, 0x7c, 0xa8, 0x31, 0x03, 0x1c, 0x06, 0xa8,
0x62, 0xb1, 0x90, 0xd6, 0x21, 0x44, 0x7f, 0xc1, 0x9b, 0x87, 0x3e, 0xad,
0x91, 0x85, 0x00, 0x00, 0x06, 0x13, 0x01, 0x13, 0x03, 0x13, 0x02, 0x01,
0x00, 0x00, 0xa0, 0x00, 0x00, 0x00, 0x0b, 0x00, 0x09, 0x00, 0x00, 0x06,
0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0xff, 0x01, 0x00, 0x01, 0x00, 0x00,
0x0a, 0x00, 0x12, 0x00, 0x10, 0x00, 0x17, 0x00, 0x18, 0x00, 0x19, 0x01,
0x00, 0x01, 0x01, 0x01, 0x02, 0x01, 0x03, 0x01, 0x04, 0x00, 0x33, 0x00,
0x47, 0x00, 0x45, 0x00, 0x17, 0x00, 0x41, 0x04, 0x86, 0x4a, 0xb9, 0xdc,
0x6a, 0x38, 0xa7, 0xce, 0xe7, 0xc2, 0x4f, 0xa6, 0x28, 0xb9, 0xdc, 0x65,
0xbf, 0x73, 0x47, 0x3c, 0x9c, 0x65, 0x8c, 0x47, 0x6d, 0x57, 0x22, 0x8a,
0xc2, 0xb3, 0xc6, 0x80, 0x72, 0x86, 0x08, 0x86, 0x8f, 0x52, 0xc5, 0xcb,
0xbf, 0x2a, 0xb5, 0x59, 0x64, 0xcc, 0x0c, 0x49, 0x95, 0x36, 0xe4, 0xd9,
0x2f, 0xd4, 0x24, 0x66, 0x71, 0x6f, 0x5d, 0x70, 0xe2, 0xa0, 0xea, 0x26,
0x00, 0x2b, 0x00, 0x03, 0x02, 0x03, 0x04, 0x00, 0x0d, 0x00, 0x20, 0x00,
0x1e, 0x04, 0x03, 0x05, 0x03, 0x06, 0x03, 0x02, 0x03, 0x08, 0x04, 0x08,
0x05, 0x08, 0x06, 0x04, 0x01, 0x05, 0x01, 0x06, 0x01, 0x02, 0x01, 0x04,
0x02, 0x05, 0x02, 0x06, 0x02, 0x02, 0x02};
static const size_t kFirstFragmentSize = 20;
static const char *k0RttData = "ABCDEF";
TEST_P(TlsAgentTest, EarlyFinished) {
DataBuffer buffer;
MakeTrivialHandshakeRecord(kTlsHandshakeFinished, 0, &buffer);
ExpectAlert(kTlsAlertUnexpectedMessage);
ProcessMessage(buffer, TlsAgent::STATE_ERROR,
SSL_ERROR_RX_UNEXPECTED_FINISHED);
}
TEST_P(TlsAgentTest, EarlyCertificateVerify) {
DataBuffer buffer;
MakeTrivialHandshakeRecord(kTlsHandshakeCertificateVerify, 0, &buffer);
ExpectAlert(kTlsAlertUnexpectedMessage);
ProcessMessage(buffer, TlsAgent::STATE_ERROR,
SSL_ERROR_RX_UNEXPECTED_CERT_VERIFY);
}
TEST_P(TlsAgentTestClient13, CannedHello) {
DataBuffer buffer;
EnsureInit();
DataBuffer server_hello;
auto sh = MakeCannedTls13ServerHello();
MakeHandshakeMessage(kTlsHandshakeServerHello, sh.data(), sh.len(),
&server_hello);
MakeRecord(ssl_ct_handshake, SSL_LIBRARY_VERSION_TLS_1_3, server_hello.data(),
server_hello.len(), &buffer);
ProcessMessage(buffer, TlsAgent::STATE_CONNECTING);
}
TEST_P(TlsAgentTestClient13, EncryptedExtensionsInClear) {
DataBuffer server_hello;
auto sh = MakeCannedTls13ServerHello();
MakeHandshakeMessage(kTlsHandshakeServerHello, sh.data(), sh.len(),
&server_hello);
DataBuffer encrypted_extensions;
MakeHandshakeMessage(kTlsHandshakeEncryptedExtensions, nullptr, 0,
&encrypted_extensions, 1);
server_hello.Append(encrypted_extensions);
DataBuffer buffer;
MakeRecord(ssl_ct_handshake, SSL_LIBRARY_VERSION_TLS_1_3, server_hello.data(),
server_hello.len(), &buffer);
EnsureInit();
ExpectAlert(kTlsAlertUnexpectedMessage);
ProcessMessage(buffer, TlsAgent::STATE_ERROR,
SSL_ERROR_RX_UNEXPECTED_HANDSHAKE);
}
TEST_F(TlsAgentStreamTestClient, EncryptedExtensionsInClearTwoPieces) {
DataBuffer server_hello;
auto sh = MakeCannedTls13ServerHello();
MakeHandshakeMessage(kTlsHandshakeServerHello, sh.data(), sh.len(),
&server_hello);
DataBuffer encrypted_extensions;
MakeHandshakeMessage(kTlsHandshakeEncryptedExtensions, nullptr, 0,
&encrypted_extensions, 1);
server_hello.Append(encrypted_extensions);
DataBuffer buffer;
MakeRecord(ssl_ct_handshake, SSL_LIBRARY_VERSION_TLS_1_3, server_hello.data(),
kFirstFragmentSize, &buffer);
DataBuffer buffer2;
MakeRecord(ssl_ct_handshake, SSL_LIBRARY_VERSION_TLS_1_3,
server_hello.data() + kFirstFragmentSize,
server_hello.len() - kFirstFragmentSize, &buffer2);
EnsureInit();
agent_->SetVersionRange(SSL_LIBRARY_VERSION_TLS_1_3,
SSL_LIBRARY_VERSION_TLS_1_3);
ProcessMessage(buffer, TlsAgent::STATE_CONNECTING);
ExpectAlert(kTlsAlertUnexpectedMessage);
ProcessMessage(buffer2, TlsAgent::STATE_ERROR,
SSL_ERROR_RX_UNEXPECTED_HANDSHAKE);
}
TEST_F(TlsAgentDgramTestClient, EncryptedExtensionsInClearTwoPieces) {
auto sh = MakeCannedTls13ServerHello();
DataBuffer server_hello_frag1;
MakeHandshakeMessageFragment(kTlsHandshakeServerHello, sh.data(), sh.len(),
&server_hello_frag1, 0, 0, kFirstFragmentSize);
DataBuffer server_hello_frag2;
MakeHandshakeMessageFragment(kTlsHandshakeServerHello,
sh.data() + kFirstFragmentSize, sh.len(),
&server_hello_frag2, 0, kFirstFragmentSize,
sh.len() - kFirstFragmentSize);
DataBuffer encrypted_extensions;
MakeHandshakeMessage(kTlsHandshakeEncryptedExtensions, nullptr, 0,
&encrypted_extensions, 1);
server_hello_frag2.Append(encrypted_extensions);
DataBuffer buffer;
MakeRecord(ssl_ct_handshake, SSL_LIBRARY_VERSION_TLS_1_3,
server_hello_frag1.data(), server_hello_frag1.len(), &buffer);
DataBuffer buffer2;
MakeRecord(ssl_ct_handshake, SSL_LIBRARY_VERSION_TLS_1_3,
server_hello_frag2.data(), server_hello_frag2.len(), &buffer2, 1);
EnsureInit();
agent_->SetVersionRange(SSL_LIBRARY_VERSION_TLS_1_3,
SSL_LIBRARY_VERSION_TLS_1_3);
ProcessMessage(buffer, TlsAgent::STATE_CONNECTING);
ExpectAlert(kTlsAlertUnexpectedMessage);
ProcessMessage(buffer2, TlsAgent::STATE_ERROR,
SSL_ERROR_RX_UNEXPECTED_HANDSHAKE);
}
TEST_F(TlsAgentDgramTestClient, AckWithBogusLengthField) {
EnsureInit();
// Length doesn't match
const uint8_t ackBuf[] = {0x00, 0x08, 0x00};
DataBuffer record;
MakeRecord(variant_, ssl_ct_ack, SSL_LIBRARY_VERSION_TLS_1_2, ackBuf,
sizeof(ackBuf), &record, 0);
agent_->SetVersionRange(SSL_LIBRARY_VERSION_TLS_1_3,
SSL_LIBRARY_VERSION_TLS_1_3);
ExpectAlert(kTlsAlertDecodeError);
ProcessMessage(record, TlsAgent::STATE_ERROR,
SSL_ERROR_RX_MALFORMED_DTLS_ACK);
}
TEST_F(TlsAgentDgramTestClient, AckWithNonEvenLength) {
EnsureInit();
// Length isn't a multiple of 8
const uint8_t ackBuf[] = {0x00, 0x01, 0x00};
DataBuffer record;
MakeRecord(variant_, ssl_ct_ack, SSL_LIBRARY_VERSION_TLS_1_2, ackBuf,
sizeof(ackBuf), &record, 0);
agent_->SetVersionRange(SSL_LIBRARY_VERSION_TLS_1_3,
SSL_LIBRARY_VERSION_TLS_1_3);
// Because we haven't negotiated the version,
// ssl3_DecodeError() sends an older (pre-TLS error).
ExpectAlert(kTlsAlertIllegalParameter);
ProcessMessage(record, TlsAgent::STATE_ERROR, SSL_ERROR_BAD_SERVER);
}
TEST_F(TlsAgentStreamTestClient, Set0RttOptionThenWrite) {
EnsureInit();
agent_->SetVersionRange(SSL_LIBRARY_VERSION_TLS_1_1,
SSL_LIBRARY_VERSION_TLS_1_3);
agent_->StartConnect();
agent_->Set0RttEnabled(true);
auto filter =
MakeTlsFilter<TlsHandshakeRecorder>(agent_, kTlsHandshakeClientHello);
PRInt32 rv = PR_Write(agent_->ssl_fd(), k0RttData, strlen(k0RttData));
EXPECT_EQ(-1, rv);
int32_t err = PORT_GetError();
EXPECT_EQ(PR_WOULD_BLOCK_ERROR, err);
EXPECT_LT(0UL, filter->buffer().len());
}
TEST_F(TlsAgentStreamTestClient, Set0RttOptionThenRead) {
EnsureInit();
agent_->SetVersionRange(SSL_LIBRARY_VERSION_TLS_1_1,
SSL_LIBRARY_VERSION_TLS_1_3);
agent_->StartConnect();
agent_->Set0RttEnabled(true);
DataBuffer buffer;
MakeRecord(ssl_ct_application_data, SSL_LIBRARY_VERSION_TLS_1_3,
reinterpret_cast<const uint8_t *>(k0RttData), strlen(k0RttData),
&buffer);
ExpectAlert(kTlsAlertUnexpectedMessage);
ProcessMessage(buffer, TlsAgent::STATE_ERROR,
SSL_ERROR_RX_UNEXPECTED_APPLICATION_DATA);
}
// The server is allowing 0-RTT but the client doesn't offer it,
// so trial decryption isn't engaged and 0-RTT messages cause
// an error.
TEST_F(TlsAgentStreamTestServer, Set0RttOptionClientHelloThenRead) {
EnsureInit();
agent_->SetVersionRange(SSL_LIBRARY_VERSION_TLS_1_1,
SSL_LIBRARY_VERSION_TLS_1_3);
agent_->StartConnect();
agent_->Set0RttEnabled(true);
DataBuffer buffer;
MakeRecord(ssl_ct_handshake, SSL_LIBRARY_VERSION_TLS_1_3,
kCannedTls13ClientHello, sizeof(kCannedTls13ClientHello), &buffer);
ProcessMessage(buffer, TlsAgent::STATE_CONNECTING);
MakeRecord(ssl_ct_application_data, SSL_LIBRARY_VERSION_TLS_1_3,
reinterpret_cast<const uint8_t *>(k0RttData), strlen(k0RttData),
&buffer);
ExpectAlert(kTlsAlertBadRecordMac);
ProcessMessage(buffer, TlsAgent::STATE_ERROR, SSL_ERROR_BAD_MAC_READ);
}
INSTANTIATE_TEST_CASE_P(
AgentTests, TlsAgentTest,
::testing::Combine(TlsAgentTestBase::kTlsRolesAll,
TlsConnectTestBase::kTlsVariantsStream,
TlsConnectTestBase::kTlsVAll));
INSTANTIATE_TEST_CASE_P(ClientTests, TlsAgentTestClient,
::testing::Combine(TlsConnectTestBase::kTlsVariantsAll,
TlsConnectTestBase::kTlsVAll));
INSTANTIATE_TEST_CASE_P(ClientTests13, TlsAgentTestClient13,
::testing::Combine(TlsConnectTestBase::kTlsVariantsAll,
TlsConnectTestBase::kTlsV13));
} // namespace nss_test