519 lines
18 KiB
C++
519 lines
18 KiB
C++
|
// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 OR ISC
|
||
|
|
|
||
|
|
#include <gtest/gtest.h>
|
||
|
|
|
||
|
|
#include <openssl/ssl.h>
|
||
|
|
#include <openssl/tls1.h>
|
||
|
|
#include <openssl/mem.h>
|
||
|
|
|
||
|
|
#include "ssl_common_test.h"
|
||
|
|
|
||
|
|
#include <memory>
|
||
|
|
|
||
|
|
BSSL_NAMESPACE_BEGIN
|
||
|
|
|
||
|
|
namespace {
|
||
|
|
|
||
|
|
// Test SSL client hello callback functionality
|
||
|
|
TEST(SSLClientHelloTest, ClientHelloCallback) {
|
||
|
|
UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
|
||
|
|
UniquePtr<SSL_CTX> server_ctx =
|
||
|
|
CreateContextWithTestCertificate(TLS_method());
|
||
|
|
ASSERT_TRUE(client_ctx);
|
||
|
|
ASSERT_TRUE(server_ctx);
|
||
|
|
|
||
|
|
// Test that callback is called and can access client hello data
|
||
|
|
bool callback_called = false;
|
||
|
|
SSL_CTX_set_client_hello_cb(
|
||
|
|
server_ctx.get(),
|
||
|
|
[](SSL *ssl, int *al, void *arg) -> int {
|
||
|
|
bool *called = static_cast<bool *>(arg);
|
||
|
|
*called = true;
|
||
|
|
|
||
|
|
// Test SSL_client_hello_isv2 - should return 0 (not SSLv2)
|
||
|
|
EXPECT_EQ(0, SSL_client_hello_isv2(ssl));
|
||
|
|
|
||
|
|
// Test SSL_client_hello_get0_ext for a common extension
|
||
|
|
const unsigned char *ext_data = nullptr;
|
||
|
|
size_t ext_len = 0;
|
||
|
|
// Try to get server_name extension (type 0)
|
||
|
|
(void)SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_server_name, &ext_data,
|
||
|
|
&ext_len);
|
||
|
|
// Extension may or may not be present, but function should not crash
|
||
|
|
|
||
|
|
return SSL_CLIENT_HELLO_SUCCESS;
|
||
|
|
},
|
||
|
|
&callback_called);
|
||
|
|
|
||
|
|
UniquePtr<SSL> client, server;
|
||
|
|
ASSERT_TRUE(ConnectClientAndServer(&client, &server, client_ctx.get(),
|
||
|
|
server_ctx.get()));
|
||
|
|
EXPECT_TRUE(callback_called);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test client hello callback return values
|
||
|
|
TEST(SSLClientHelloTest, ClientHelloCallbackReturnValues) {
|
||
|
|
UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
|
||
|
|
UniquePtr<SSL_CTX> server_ctx =
|
||
|
|
CreateContextWithTestCertificate(TLS_method());
|
||
|
|
ASSERT_TRUE(client_ctx);
|
||
|
|
ASSERT_TRUE(server_ctx);
|
||
|
|
|
||
|
|
// Test SSL_CLIENT_HELLO_ERROR causes connection failure
|
||
|
|
SSL_CTX_set_client_hello_cb(
|
||
|
|
server_ctx.get(),
|
||
|
|
[](SSL *ssl, int *al, void *arg) -> int {
|
||
|
|
*al = SSL_AD_INTERNAL_ERROR;
|
||
|
|
return SSL_CLIENT_HELLO_ERROR;
|
||
|
|
},
|
||
|
|
nullptr);
|
||
|
|
|
||
|
|
UniquePtr<SSL> client, server;
|
||
|
|
ASSERT_FALSE(ConnectClientAndServer(&client, &server, client_ctx.get(),
|
||
|
|
server_ctx.get()));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test SSL_client_hello_get0_ext with various extensions
|
||
|
|
TEST(SSLClientHelloTest, ClientHelloGetExtension) {
|
||
|
|
UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
|
||
|
|
UniquePtr<SSL_CTX> server_ctx =
|
||
|
|
CreateContextWithTestCertificate(TLS_method());
|
||
|
|
ASSERT_TRUE(client_ctx);
|
||
|
|
ASSERT_TRUE(server_ctx);
|
||
|
|
|
||
|
|
struct ExtensionTest {
|
||
|
|
bool found_supported_versions = false;
|
||
|
|
bool found_key_share = false;
|
||
|
|
} test_data;
|
||
|
|
|
||
|
|
SSL_CTX_set_client_hello_cb(
|
||
|
|
server_ctx.get(),
|
||
|
|
[](SSL *ssl, int *al, void *arg) -> int {
|
||
|
|
ExtensionTest *data = static_cast<ExtensionTest *>(arg);
|
||
|
|
const unsigned char *ext_data = nullptr;
|
||
|
|
size_t ext_len = 0;
|
||
|
|
|
||
|
|
// Test common TLS 1.3 extensions
|
||
|
|
// Supported versions extension (43)
|
||
|
|
if (SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_supported_versions,
|
||
|
|
&ext_data, &ext_len)) {
|
||
|
|
data->found_supported_versions = true;
|
||
|
|
EXPECT_GT(ext_len, 0u);
|
||
|
|
EXPECT_NE(nullptr, ext_data);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Key share extension (51) - TLS 1.3
|
||
|
|
if (SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_key_share, &ext_data,
|
||
|
|
&ext_len)) {
|
||
|
|
data->found_key_share = true;
|
||
|
|
EXPECT_GT(ext_len, 0u);
|
||
|
|
EXPECT_NE(nullptr, ext_data);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test non-existent extension (should return 0)
|
||
|
|
EXPECT_EQ(0,
|
||
|
|
SSL_client_hello_get0_ext(ssl, 65535, &ext_data, &ext_len));
|
||
|
|
|
||
|
|
return SSL_CLIENT_HELLO_SUCCESS;
|
||
|
|
},
|
||
|
|
&test_data);
|
||
|
|
|
||
|
|
UniquePtr<SSL> client, server;
|
||
|
|
ASSERT_TRUE(ConnectClientAndServer(&client, &server, client_ctx.get(),
|
||
|
|
server_ctx.get()));
|
||
|
|
|
||
|
|
// In TLS 1.3, we should find supported_versions extension
|
||
|
|
EXPECT_TRUE(test_data.found_supported_versions);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test that SSL_client_hello_isv2 correctly identifies non-SSLv2 hellos
|
||
|
|
TEST(SSLClientHelloTest, ClientHelloIsV2) {
|
||
|
|
UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
|
||
|
|
UniquePtr<SSL_CTX> server_ctx =
|
||
|
|
CreateContextWithTestCertificate(TLS_method());
|
||
|
|
ASSERT_TRUE(client_ctx);
|
||
|
|
ASSERT_TRUE(server_ctx);
|
||
|
|
|
||
|
|
// Test with different TLS versions
|
||
|
|
for (uint16_t version :
|
||
|
|
{TLS1_VERSION, TLS1_1_VERSION, TLS1_2_VERSION, TLS1_3_VERSION}) {
|
||
|
|
SCOPED_TRACE(version);
|
||
|
|
|
||
|
|
ASSERT_TRUE(SSL_CTX_set_min_proto_version(client_ctx.get(), version));
|
||
|
|
ASSERT_TRUE(SSL_CTX_set_max_proto_version(client_ctx.get(), version));
|
||
|
|
ASSERT_TRUE(SSL_CTX_set_min_proto_version(server_ctx.get(), version));
|
||
|
|
ASSERT_TRUE(SSL_CTX_set_max_proto_version(server_ctx.get(), version));
|
||
|
|
|
||
|
|
bool tested = false;
|
||
|
|
SSL_CTX_set_client_hello_cb(
|
||
|
|
server_ctx.get(),
|
||
|
|
[](SSL *ssl, int *al, void *arg) -> int {
|
||
|
|
bool *tested_ptr = static_cast<bool *>(arg);
|
||
|
|
*tested_ptr = true;
|
||
|
|
// Should always return 0 since SSLv2 is not supported
|
||
|
|
EXPECT_EQ(0, SSL_client_hello_isv2(ssl));
|
||
|
|
return SSL_CLIENT_HELLO_SUCCESS;
|
||
|
|
},
|
||
|
|
&tested);
|
||
|
|
|
||
|
|
UniquePtr<SSL> client, server;
|
||
|
|
ASSERT_TRUE(ConnectClientAndServer(&client, &server, client_ctx.get(),
|
||
|
|
server_ctx.get()));
|
||
|
|
EXPECT_TRUE(tested);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test multiple callbacks and state management
|
||
|
|
TEST(SSLClientHelloTest, ClientHelloCallbackState) {
|
||
|
|
UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
|
||
|
|
UniquePtr<SSL_CTX> server_ctx =
|
||
|
|
CreateContextWithTestCertificate(TLS_method());
|
||
|
|
ASSERT_TRUE(client_ctx);
|
||
|
|
ASSERT_TRUE(server_ctx);
|
||
|
|
|
||
|
|
int call_count = 0;
|
||
|
|
SSL_CTX_set_client_hello_cb(
|
||
|
|
server_ctx.get(),
|
||
|
|
[](SSL *ssl, int *al, void *arg) -> int {
|
||
|
|
int *count = static_cast<int *>(arg);
|
||
|
|
(*count)++;
|
||
|
|
return SSL_CLIENT_HELLO_SUCCESS;
|
||
|
|
},
|
||
|
|
&call_count);
|
||
|
|
|
||
|
|
// First connection
|
||
|
|
{
|
||
|
|
UniquePtr<SSL> client, server;
|
||
|
|
ASSERT_TRUE(ConnectClientAndServer(&client, &server, client_ctx.get(),
|
||
|
|
server_ctx.get()));
|
||
|
|
}
|
||
|
|
EXPECT_EQ(1, call_count);
|
||
|
|
|
||
|
|
// Second connection should call callback again
|
||
|
|
{
|
||
|
|
UniquePtr<SSL> client, server;
|
||
|
|
ASSERT_TRUE(ConnectClientAndServer(&client, &server, client_ctx.get(),
|
||
|
|
server_ctx.get()));
|
||
|
|
}
|
||
|
|
EXPECT_EQ(2, call_count);
|
||
|
|
|
||
|
|
// Reset callback to nullptr
|
||
|
|
SSL_CTX_set_client_hello_cb(server_ctx.get(), nullptr, nullptr);
|
||
|
|
|
||
|
|
// Third connection should not increment count
|
||
|
|
{
|
||
|
|
UniquePtr<SSL> client, server;
|
||
|
|
ASSERT_TRUE(ConnectClientAndServer(&client, &server, client_ctx.get(),
|
||
|
|
server_ctx.get()));
|
||
|
|
}
|
||
|
|
EXPECT_EQ(2, call_count);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test error handling with invalid parameters
|
||
|
|
TEST(SSLClientHelloTest, ClientHelloCallbackErrorHandling) {
|
||
|
|
UniquePtr<SSL_CTX> server_ctx =
|
||
|
|
CreateContextWithTestCertificate(TLS_method());
|
||
|
|
ASSERT_TRUE(server_ctx);
|
||
|
|
UniquePtr<SSL> ssl(SSL_new(server_ctx.get()));
|
||
|
|
ASSERT_TRUE(ssl);
|
||
|
|
|
||
|
|
// Test SSL_client_hello_isv2 with invalid SSL context (before handshake)
|
||
|
|
// Should not crash but return reasonable value
|
||
|
|
EXPECT_EQ(0, SSL_client_hello_isv2(ssl.get()));
|
||
|
|
|
||
|
|
// Test SSL_client_hello_get0_ext with invalid parameters
|
||
|
|
const unsigned char *ext_data = nullptr;
|
||
|
|
size_t ext_len = 0;
|
||
|
|
EXPECT_EQ(0, SSL_client_hello_get0_ext(ssl.get(), 0, &ext_data, &ext_len));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test interaction with other callbacks (select_certificate_cb)
|
||
|
|
TEST(SSLClientHelloTest, ClientHelloCallbackWithSelectCertificate) {
|
||
|
|
UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
|
||
|
|
UniquePtr<SSL_CTX> server_ctx =
|
||
|
|
CreateContextWithTestCertificate(TLS_method());
|
||
|
|
ASSERT_TRUE(client_ctx);
|
||
|
|
ASSERT_TRUE(server_ctx);
|
||
|
|
|
||
|
|
bool client_hello_called = false;
|
||
|
|
|
||
|
|
SSL_CTX_set_client_hello_cb(
|
||
|
|
server_ctx.get(),
|
||
|
|
[](SSL *ssl, int *al, void *arg) -> int {
|
||
|
|
bool *called = static_cast<bool *>(arg);
|
||
|
|
*called = true;
|
||
|
|
return SSL_CLIENT_HELLO_SUCCESS;
|
||
|
|
},
|
||
|
|
&client_hello_called);
|
||
|
|
|
||
|
|
SSL_CTX_set_select_certificate_cb(
|
||
|
|
server_ctx.get(),
|
||
|
|
[](const SSL_CLIENT_HELLO *client_hello) -> ssl_select_cert_result_t {
|
||
|
|
// Just verify the callback is called by testing the SSL pointer
|
||
|
|
EXPECT_NE(nullptr, client_hello->ssl);
|
||
|
|
return ssl_select_cert_success;
|
||
|
|
});
|
||
|
|
|
||
|
|
UniquePtr<SSL> client, server;
|
||
|
|
ASSERT_TRUE(ConnectClientAndServer(&client, &server, client_ctx.get(),
|
||
|
|
server_ctx.get()));
|
||
|
|
|
||
|
|
// Client hello callback should be called
|
||
|
|
EXPECT_TRUE(client_hello_called);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test SSL_CLIENT_HELLO_RETRY return value (though treated as error in current
|
||
|
|
// implementation)
|
||
|
|
TEST(SSLClientHelloTest, ClientHelloCallbackRetry) {
|
||
|
|
UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
|
||
|
|
UniquePtr<SSL_CTX> server_ctx =
|
||
|
|
CreateContextWithTestCertificate(TLS_method());
|
||
|
|
ASSERT_TRUE(client_ctx);
|
||
|
|
ASSERT_TRUE(server_ctx);
|
||
|
|
|
||
|
|
// Test SSL_CLIENT_HELLO_RETRY causes connection failure
|
||
|
|
SSL_CTX_set_client_hello_cb(
|
||
|
|
server_ctx.get(),
|
||
|
|
[](SSL *ssl, int *al, void *arg) -> int {
|
||
|
|
return SSL_CLIENT_HELLO_RETRY;
|
||
|
|
},
|
||
|
|
nullptr);
|
||
|
|
|
||
|
|
UniquePtr<SSL> client, server;
|
||
|
|
// Currently, RETRY is treated as failure in AWS-LC
|
||
|
|
ASSERT_FALSE(ConnectClientAndServer(&client, &server, client_ctx.get(),
|
||
|
|
server_ctx.get()));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test extension retrieval with known extensions
|
||
|
|
TEST(SSLClientHelloTest, ClientHelloKnownExtensions) {
|
||
|
|
UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
|
||
|
|
UniquePtr<SSL_CTX> server_ctx =
|
||
|
|
CreateContextWithTestCertificate(TLS_method());
|
||
|
|
ASSERT_TRUE(client_ctx);
|
||
|
|
ASSERT_TRUE(server_ctx);
|
||
|
|
|
||
|
|
struct ExtensionResults {
|
||
|
|
bool found_signature_algorithms = false;
|
||
|
|
bool found_supported_groups = false;
|
||
|
|
size_t signature_algorithms_len = 0;
|
||
|
|
size_t supported_groups_len = 0;
|
||
|
|
} results;
|
||
|
|
|
||
|
|
SSL_CTX_set_client_hello_cb(
|
||
|
|
server_ctx.get(),
|
||
|
|
[](SSL *ssl, int *al, void *arg) -> int {
|
||
|
|
ExtensionResults *res = static_cast<ExtensionResults *>(arg);
|
||
|
|
const unsigned char *ext_data = nullptr;
|
||
|
|
size_t ext_len = 0;
|
||
|
|
|
||
|
|
// Check signature_algorithms extension (13)
|
||
|
|
if (SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_signature_algorithms,
|
||
|
|
&ext_data, &ext_len)) {
|
||
|
|
res->found_signature_algorithms = true;
|
||
|
|
res->signature_algorithms_len = ext_len;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check supported_groups extension (10)
|
||
|
|
if (SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_supported_groups,
|
||
|
|
&ext_data, &ext_len)) {
|
||
|
|
res->found_supported_groups = true;
|
||
|
|
res->supported_groups_len = ext_len;
|
||
|
|
}
|
||
|
|
|
||
|
|
return SSL_CLIENT_HELLO_SUCCESS;
|
||
|
|
},
|
||
|
|
&results);
|
||
|
|
|
||
|
|
UniquePtr<SSL> client, server;
|
||
|
|
ASSERT_TRUE(ConnectClientAndServer(&client, &server, client_ctx.get(),
|
||
|
|
server_ctx.get()));
|
||
|
|
|
||
|
|
// These extensions should be present in modern TLS handshakes
|
||
|
|
EXPECT_TRUE(results.found_signature_algorithms);
|
||
|
|
EXPECT_TRUE(results.found_supported_groups);
|
||
|
|
EXPECT_GT(results.signature_algorithms_len, 0u);
|
||
|
|
EXPECT_GT(results.supported_groups_len, 0u);
|
||
|
|
}
|
||
|
|
|
||
|
|
struct ExtensionsPresentTestArgs {
|
||
|
|
bool *called;
|
||
|
|
bool expect_session_ticket;
|
||
|
|
};
|
||
|
|
|
||
|
|
int callback_SSL_client_hello_get1_extensions_present_impl(
|
||
|
|
SSL *ssl, int *al, void *arg) {
|
||
|
|
auto *args = static_cast<ExtensionsPresentTestArgs *>(arg);
|
||
|
|
*(args->called) = true;
|
||
|
|
|
||
|
|
int *extensions = nullptr;
|
||
|
|
size_t extensions_len = 0;
|
||
|
|
if (!SSL_client_hello_get1_extensions_present(ssl, &extensions,
|
||
|
|
&extensions_len)) {
|
||
|
|
ADD_FAILURE() << "SSL_client_hello_get1_extensions_present failed";
|
||
|
|
return SSL_CLIENT_HELLO_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
EXPECT_GT(extensions_len, 0u);
|
||
|
|
EXPECT_TRUE(extensions);
|
||
|
|
|
||
|
|
unsigned legacy_version = SSL_client_hello_get0_legacy_version(ssl);
|
||
|
|
EXPECT_EQ(legacy_version, (unsigned)TLS1_2_VERSION);
|
||
|
|
|
||
|
|
// Verify a few common extensions are present
|
||
|
|
bool found_supported_groups = false;
|
||
|
|
bool found_session_ticket = false;
|
||
|
|
for (size_t i = 0; i < extensions_len; i++) {
|
||
|
|
if (extensions[i] == TLSEXT_TYPE_supported_groups) {
|
||
|
|
found_supported_groups = true;
|
||
|
|
}
|
||
|
|
if (extensions[i] == TLSEXT_TYPE_session_ticket) {
|
||
|
|
found_session_ticket = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
EXPECT_TRUE(found_supported_groups);
|
||
|
|
EXPECT_EQ(found_session_ticket, args->expect_session_ticket);
|
||
|
|
|
||
|
|
OPENSSL_free(extensions);
|
||
|
|
|
||
|
|
return SSL_CLIENT_HELLO_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test SSL_client_hello_get1_extensions_present with a client hello that has
|
||
|
|
// extensions.
|
||
|
|
TEST(SSLClientHelloTest, ExtensionsPresent) {
|
||
|
|
UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
|
||
|
|
UniquePtr<SSL_CTX> server_ctx =
|
||
|
|
CreateContextWithTestCertificate(TLS_method());
|
||
|
|
ASSERT_TRUE(client_ctx);
|
||
|
|
ASSERT_TRUE(server_ctx);
|
||
|
|
|
||
|
|
SSL_CTX_set_info_callback(
|
||
|
|
client_ctx.get(), [](const SSL *ssl, int type, int val) {
|
||
|
|
if (type == SSL_CB_HANDSHAKE_START) {
|
||
|
|
ASSERT_TRUE(
|
||
|
|
SSL_set_tlsext_host_name(const_cast<SSL *>(ssl), "example.com"));
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
bool callback_called = false;
|
||
|
|
ExtensionsPresentTestArgs args = {&callback_called,
|
||
|
|
true /* expect_session_ticket */};
|
||
|
|
SSL_CTX_set_client_hello_cb(
|
||
|
|
server_ctx.get(), callback_SSL_client_hello_get1_extensions_present_impl,
|
||
|
|
&args);
|
||
|
|
|
||
|
|
UniquePtr<SSL> client, server;
|
||
|
|
ASSERT_TRUE(ConnectClientAndServer(&client, &server, client_ctx.get(),
|
||
|
|
server_ctx.get()));
|
||
|
|
EXPECT_TRUE(callback_called);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test SSL_client_hello_get1_extensions_present with a client hello that has
|
||
|
|
// no session ticket extension.
|
||
|
|
TEST(SSLClientHelloTest, NoTicketExtensionPresent) {
|
||
|
|
UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
|
||
|
|
UniquePtr<SSL_CTX> server_ctx =
|
||
|
|
CreateContextWithTestCertificate(TLS_method());
|
||
|
|
ASSERT_TRUE(client_ctx);
|
||
|
|
ASSERT_TRUE(server_ctx);
|
||
|
|
|
||
|
|
// Disable all extensions on the client to simulate a "no extensions" scenario
|
||
|
|
// Note: This is a bit artificial as the library might add some extensions
|
||
|
|
// by default. We rely on the callback to check the result.
|
||
|
|
SSL_CTX_set_options(client_ctx.get(), SSL_OP_NO_TICKET);
|
||
|
|
|
||
|
|
bool callback_called = false;
|
||
|
|
ExtensionsPresentTestArgs args = {&callback_called,
|
||
|
|
false /* expect_session_ticket */};
|
||
|
|
SSL_CTX_set_client_hello_cb(
|
||
|
|
server_ctx.get(), callback_SSL_client_hello_get1_extensions_present_impl,
|
||
|
|
&args);
|
||
|
|
|
||
|
|
UniquePtr<SSL> client, server;
|
||
|
|
ASSERT_TRUE(ConnectClientAndServer(&client, &server, client_ctx.get(),
|
||
|
|
server_ctx.get()));
|
||
|
|
EXPECT_TRUE(callback_called);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test SSL_client_hello_get_extension_order to verify its behavior with
|
||
|
|
// different buffer sizes and to ensure it correctly reports the number of
|
||
|
|
// extensions.
|
||
|
|
TEST(SSLClientHelloTest, GetExtensionOrder) {
|
||
|
|
UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
|
||
|
|
UniquePtr<SSL_CTX> server_ctx =
|
||
|
|
CreateContextWithTestCertificate(TLS_method());
|
||
|
|
ASSERT_TRUE(client_ctx);
|
||
|
|
ASSERT_TRUE(server_ctx);
|
||
|
|
|
||
|
|
bool callback_called = false;
|
||
|
|
SSL_CTX_set_client_hello_cb(
|
||
|
|
server_ctx.get(),
|
||
|
|
[](SSL *ssl, int *al, void *arg) -> int {
|
||
|
|
bool *called = static_cast<bool *>(arg);
|
||
|
|
*called = true;
|
||
|
|
|
||
|
|
size_t num_extensions = 0;
|
||
|
|
// First, call with a null buffer to get the count of extensions.
|
||
|
|
if (SSL_client_hello_get_extension_order(ssl, nullptr,
|
||
|
|
&num_extensions) != 1) {
|
||
|
|
ADD_FAILURE()
|
||
|
|
<< "Failed initial call to SSL_client_hello_get_extension_order";
|
||
|
|
return SSL_CLIENT_HELLO_ERROR;
|
||
|
|
}
|
||
|
|
EXPECT_GT(num_extensions, 0u);
|
||
|
|
|
||
|
|
// Allocate a buffer of the correct size and get the extensions.
|
||
|
|
uint16_t *exts = static_cast<uint16_t *>(
|
||
|
|
OPENSSL_zalloc(sizeof(uint16_t) * num_extensions));
|
||
|
|
if (exts == nullptr) {
|
||
|
|
ADD_FAILURE() << "Failed to allocate extensions";
|
||
|
|
return SSL_CLIENT_HELLO_ERROR;
|
||
|
|
}
|
||
|
|
if (SSL_client_hello_get_extension_order(ssl, exts, &num_extensions) !=
|
||
|
|
1) {
|
||
|
|
ADD_FAILURE()
|
||
|
|
<< "Failed call to SSL_client_hello_get_extension_order";
|
||
|
|
OPENSSL_free(exts);
|
||
|
|
return SSL_CLIENT_HELLO_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
unsigned legacy_version = SSL_client_hello_get0_legacy_version(ssl);
|
||
|
|
EXPECT_EQ(legacy_version, static_cast<unsigned>(TLS1_2_VERSION));
|
||
|
|
|
||
|
|
// Call with a buffer that is too small and confirm it fails.
|
||
|
|
size_t too_small_num_extensions = num_extensions - 1;
|
||
|
|
uint16_t *too_small_exts = static_cast<uint16_t *>(
|
||
|
|
OPENSSL_zalloc(sizeof(uint16_t) * too_small_num_extensions));
|
||
|
|
if (!too_small_exts) {
|
||
|
|
OPENSSL_free(exts);
|
||
|
|
ADD_FAILURE() << "Failed to allocate too small buffer";
|
||
|
|
return SSL_CLIENT_HELLO_ERROR;
|
||
|
|
}
|
||
|
|
// Expect failure
|
||
|
|
if (SSL_client_hello_get_extension_order(
|
||
|
|
ssl, too_small_exts, &too_small_num_extensions) != 0) {
|
||
|
|
OPENSSL_free(exts);
|
||
|
|
OPENSSL_free(too_small_exts);
|
||
|
|
ADD_FAILURE()
|
||
|
|
<< "Failed call to SSL_client_hello_get_extension_order";
|
||
|
|
return SSL_CLIENT_HELLO_ERROR;
|
||
|
|
}
|
||
|
|
OPENSSL_free(exts);
|
||
|
|
OPENSSL_free(too_small_exts);
|
||
|
|
|
||
|
|
return SSL_CLIENT_HELLO_SUCCESS;
|
||
|
|
},
|
||
|
|
&callback_called);
|
||
|
|
|
||
|
|
UniquePtr<SSL> client, server;
|
||
|
|
ASSERT_TRUE(ConnectClientAndServer(&client, &server, client_ctx.get(),
|
||
|
|
server_ctx.get()));
|
||
|
|
EXPECT_TRUE(callback_called);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace
|
||
|
|
|
||
|
|
BSSL_NAMESPACE_END
|