2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #if !defined(__STDC_FORMAT_MACROS)
11 #define __STDC_FORMAT_MACROS
14 #include <openssl/e_os2.h>
16 #if !defined(OPENSSL_SYS_WINDOWS)
17 #include <arpa/inet.h>
18 #include <netinet/in.h>
19 #include <netinet/tcp.h>
21 #include <sys/socket.h>
26 OPENSSL_MSVC_PRAGMA(warning(push, 3))
29 OPENSSL_MSVC_PRAGMA(warning(pop))
31 OPENSSL_MSVC_PRAGMA(comment(lib, "Ws2_32.lib"))
38 #include <openssl/bio.h>
39 #include <openssl/buffer.h>
40 #include <openssl/bn.h>
41 #include <openssl/crypto.h>
42 #include <openssl/dh.h>
43 #include <openssl/err.h>
44 #include <openssl/evp.h>
45 #include <openssl/hmac.h>
46 #include <openssl/objects.h>
47 #include <openssl/rand.h>
48 #include <openssl/ssl.h>
49 #include <openssl/x509.h>
55 #include "async_bio.h"
56 #include "packeted_bio.h"
57 #include "test_config.h"
61 #if !defined(OPENSSL_SYS_WINDOWS)
62 static int closesocket(int sock) {
66 static void PrintSocketError(const char *func) {
70 static void PrintSocketError(const char *func) {
71 fprintf(stderr, "%s: %d\n", func, WSAGetLastError());
75 static int Usage(const char *program) {
76 fprintf(stderr, "Usage: %s [flags...]\n", program);
81 // async_bio is async BIO which pauses reads and writes.
82 BIO *async_bio = nullptr;
83 // packeted_bio is the packeted BIO which simulates read timeouts.
84 BIO *packeted_bio = nullptr;
85 bool cert_ready = false;
86 bool handshake_done = false;
87 // private_key is the underlying private key used when testing custom keys.
88 bssl::UniquePtr<EVP_PKEY> private_key;
89 bool got_new_session = false;
90 bssl::UniquePtr<SSL_SESSION> new_session;
91 bool ticket_decrypt_done = false;
92 bool alpn_select_done = false;
95 static void TestStateExFree(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
96 int index, long argl, void *argp) {
97 delete ((TestState *)ptr);
100 static int g_config_index = 0;
101 static int g_state_index = 0;
103 static bool SetTestConfig(SSL *ssl, const TestConfig *config) {
104 return SSL_set_ex_data(ssl, g_config_index, (void *)config) == 1;
107 static const TestConfig *GetTestConfig(const SSL *ssl) {
108 return (const TestConfig *)SSL_get_ex_data(ssl, g_config_index);
111 static bool SetTestState(SSL *ssl, std::unique_ptr<TestState> state) {
112 // |SSL_set_ex_data| takes ownership of |state| only on success.
113 if (SSL_set_ex_data(ssl, g_state_index, state.get()) == 1) {
120 static TestState *GetTestState(const SSL *ssl) {
121 return (TestState *)SSL_get_ex_data(ssl, g_state_index);
124 static bssl::UniquePtr<X509> LoadCertificate(const std::string &file) {
125 bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_file()));
126 if (!bio || !BIO_read_filename(bio.get(), file.c_str())) {
129 return bssl::UniquePtr<X509>(PEM_read_bio_X509(bio.get(), NULL, NULL, NULL));
132 static bssl::UniquePtr<EVP_PKEY> LoadPrivateKey(const std::string &file) {
133 bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_file()));
134 if (!bio || !BIO_read_filename(bio.get(), file.c_str())) {
137 return bssl::UniquePtr<EVP_PKEY>(
138 PEM_read_bio_PrivateKey(bio.get(), NULL, NULL, NULL));
143 void operator()(T *buf) {
148 static bool GetCertificate(SSL *ssl, bssl::UniquePtr<X509> *out_x509,
149 bssl::UniquePtr<EVP_PKEY> *out_pkey) {
150 const TestConfig *config = GetTestConfig(ssl);
152 if (!config->key_file.empty()) {
153 *out_pkey = LoadPrivateKey(config->key_file.c_str());
158 if (!config->cert_file.empty()) {
159 *out_x509 = LoadCertificate(config->cert_file.c_str());
167 static bool InstallCertificate(SSL *ssl) {
168 bssl::UniquePtr<X509> x509;
169 bssl::UniquePtr<EVP_PKEY> pkey;
170 if (!GetCertificate(ssl, &x509, &pkey)) {
174 if (pkey && !SSL_use_PrivateKey(ssl, pkey.get())) {
178 if (x509 && !SSL_use_certificate(ssl, x509.get())) {
185 static int ClientCertCallback(SSL *ssl, X509 **out_x509, EVP_PKEY **out_pkey) {
186 if (GetTestConfig(ssl)->async && !GetTestState(ssl)->cert_ready) {
190 bssl::UniquePtr<X509> x509;
191 bssl::UniquePtr<EVP_PKEY> pkey;
192 if (!GetCertificate(ssl, &x509, &pkey)) {
196 // Return zero for no certificate.
201 // Asynchronous private keys are not supported with client_cert_cb.
202 *out_x509 = x509.release();
203 *out_pkey = pkey.release();
207 static int VerifySucceed(X509_STORE_CTX *store_ctx, void *arg) {
211 static int VerifyFail(X509_STORE_CTX *store_ctx, void *arg) {
212 X509_STORE_CTX_set_error(store_ctx, X509_V_ERR_APPLICATION_VERIFICATION);
216 static int NextProtosAdvertisedCallback(SSL *ssl, const uint8_t **out,
217 unsigned int *out_len, void *arg) {
218 const TestConfig *config = GetTestConfig(ssl);
219 if (config->advertise_npn.empty()) {
220 return SSL_TLSEXT_ERR_NOACK;
223 *out = (const uint8_t*)config->advertise_npn.data();
224 *out_len = config->advertise_npn.size();
225 return SSL_TLSEXT_ERR_OK;
228 static int NextProtoSelectCallback(SSL* ssl, uint8_t** out, uint8_t* outlen,
229 const uint8_t* in, unsigned inlen, void* arg) {
230 const TestConfig *config = GetTestConfig(ssl);
231 if (config->select_next_proto.empty()) {
232 return SSL_TLSEXT_ERR_NOACK;
235 *out = (uint8_t*)config->select_next_proto.data();
236 *outlen = config->select_next_proto.size();
237 return SSL_TLSEXT_ERR_OK;
240 static int AlpnSelectCallback(SSL* ssl, const uint8_t** out, uint8_t* outlen,
241 const uint8_t* in, unsigned inlen, void* arg) {
242 if (GetTestState(ssl)->alpn_select_done) {
243 fprintf(stderr, "AlpnSelectCallback called after completion.\n");
247 GetTestState(ssl)->alpn_select_done = true;
249 const TestConfig *config = GetTestConfig(ssl);
250 if (config->decline_alpn) {
251 return SSL_TLSEXT_ERR_NOACK;
254 if (!config->expected_advertised_alpn.empty() &&
255 (config->expected_advertised_alpn.size() != inlen ||
256 memcmp(config->expected_advertised_alpn.data(),
258 fprintf(stderr, "bad ALPN select callback inputs\n");
262 *out = (const uint8_t*)config->select_alpn.data();
263 *outlen = config->select_alpn.size();
264 return SSL_TLSEXT_ERR_OK;
267 static unsigned PskClientCallback(SSL *ssl, const char *hint,
269 unsigned max_identity_len,
270 uint8_t *out_psk, unsigned max_psk_len) {
271 const TestConfig *config = GetTestConfig(ssl);
273 if (config->psk_identity.empty()) {
274 if (hint != nullptr) {
275 fprintf(stderr, "Server PSK hint was non-null.\n");
278 } else if (hint == nullptr ||
279 strcmp(hint, config->psk_identity.c_str()) != 0) {
280 fprintf(stderr, "Server PSK hint did not match.\n");
284 // Account for the trailing '\0' for the identity.
285 if (config->psk_identity.size() >= max_identity_len ||
286 config->psk.size() > max_psk_len) {
287 fprintf(stderr, "PSK buffers too small\n");
291 BUF_strlcpy(out_identity, config->psk_identity.c_str(),
293 memcpy(out_psk, config->psk.data(), config->psk.size());
294 return config->psk.size();
297 static unsigned PskServerCallback(SSL *ssl, const char *identity,
298 uint8_t *out_psk, unsigned max_psk_len) {
299 const TestConfig *config = GetTestConfig(ssl);
301 if (strcmp(identity, config->psk_identity.c_str()) != 0) {
302 fprintf(stderr, "Client PSK identity did not match.\n");
306 if (config->psk.size() > max_psk_len) {
307 fprintf(stderr, "PSK buffers too small\n");
311 memcpy(out_psk, config->psk.data(), config->psk.size());
312 return config->psk.size();
315 static int CertCallback(SSL *ssl, void *arg) {
316 const TestConfig *config = GetTestConfig(ssl);
318 // Check the CertificateRequest metadata is as expected.
320 // TODO(davidben): Test |SSL_get_client_CA_list|.
321 if (!SSL_is_server(ssl) &&
322 !config->expected_certificate_types.empty()) {
323 const uint8_t *certificate_types;
324 size_t certificate_types_len =
325 SSL_get0_certificate_types(ssl, &certificate_types);
326 if (certificate_types_len != config->expected_certificate_types.size() ||
327 memcmp(certificate_types,
328 config->expected_certificate_types.data(),
329 certificate_types_len) != 0) {
330 fprintf(stderr, "certificate types mismatch\n");
335 // The certificate will be installed via other means.
336 if (!config->async ||
337 config->use_old_client_cert_callback) {
341 if (!GetTestState(ssl)->cert_ready) {
344 if (!InstallCertificate(ssl)) {
350 static void InfoCallback(const SSL *ssl, int type, int val) {
351 if (type == SSL_CB_HANDSHAKE_DONE) {
352 if (GetTestConfig(ssl)->handshake_never_done) {
353 fprintf(stderr, "Handshake unexpectedly completed.\n");
354 // Abort before any expected error code is printed, to ensure the overall
358 GetTestState(ssl)->handshake_done = true;
360 // Callbacks may be called again on a new handshake.
361 GetTestState(ssl)->ticket_decrypt_done = false;
362 GetTestState(ssl)->alpn_select_done = false;
366 static int NewSessionCallback(SSL *ssl, SSL_SESSION *session) {
367 GetTestState(ssl)->got_new_session = true;
368 GetTestState(ssl)->new_session.reset(session);
372 static int TicketKeyCallback(SSL *ssl, uint8_t *key_name, uint8_t *iv,
373 EVP_CIPHER_CTX *ctx, HMAC_CTX *hmac_ctx,
376 if (GetTestState(ssl)->ticket_decrypt_done) {
377 fprintf(stderr, "TicketKeyCallback called after completion.\n");
381 GetTestState(ssl)->ticket_decrypt_done = true;
384 // This is just test code, so use the all-zeros key.
385 static const uint8_t kZeros[16] = {0};
388 memcpy(key_name, kZeros, sizeof(kZeros));
390 } else if (memcmp(key_name, kZeros, 16) != 0) {
394 if (!HMAC_Init_ex(hmac_ctx, kZeros, sizeof(kZeros), EVP_sha256(), NULL) ||
395 !EVP_CipherInit_ex(ctx, EVP_aes_128_cbc(), NULL, kZeros, iv, encrypt)) {
400 return GetTestConfig(ssl)->renew_ticket ? 2 : 1;
405 // kCustomExtensionValue is the extension value that the custom extension
406 // callbacks will add.
407 static const uint16_t kCustomExtensionValue = 1234;
408 static void *const kCustomExtensionAddArg =
409 reinterpret_cast<void *>(kCustomExtensionValue);
410 static void *const kCustomExtensionParseArg =
411 reinterpret_cast<void *>(kCustomExtensionValue + 1);
412 static const char kCustomExtensionContents[] = "custom extension";
414 static int CustomExtensionAddCallback(SSL *ssl, unsigned extension_value,
415 const uint8_t **out, size_t *out_len,
416 int *out_alert_value, void *add_arg) {
417 if (extension_value != kCustomExtensionValue ||
418 add_arg != kCustomExtensionAddArg) {
422 if (GetTestConfig(ssl)->custom_extension_skip) {
425 if (GetTestConfig(ssl)->custom_extension_fail_add) {
429 *out = reinterpret_cast<const uint8_t*>(kCustomExtensionContents);
430 *out_len = sizeof(kCustomExtensionContents) - 1;
435 static void CustomExtensionFreeCallback(SSL *ssl, unsigned extension_value,
436 const uint8_t *out, void *add_arg) {
437 if (extension_value != kCustomExtensionValue ||
438 add_arg != kCustomExtensionAddArg ||
439 out != reinterpret_cast<const uint8_t *>(kCustomExtensionContents)) {
444 static int CustomExtensionParseCallback(SSL *ssl, unsigned extension_value,
445 const uint8_t *contents,
447 int *out_alert_value, void *parse_arg) {
448 if (extension_value != kCustomExtensionValue ||
449 parse_arg != kCustomExtensionParseArg) {
453 if (contents_len != sizeof(kCustomExtensionContents) - 1 ||
454 memcmp(contents, kCustomExtensionContents, contents_len) != 0) {
455 *out_alert_value = SSL_AD_DECODE_ERROR;
462 // Connect returns a new socket connected to localhost on |port| or -1 on
464 static int Connect(uint16_t port) {
465 int sock = socket(AF_INET, SOCK_STREAM, 0);
467 PrintSocketError("socket");
471 if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
472 reinterpret_cast<const char*>(&nodelay), sizeof(nodelay)) != 0) {
473 PrintSocketError("setsockopt");
478 memset(&sin, 0, sizeof(sin));
479 sin.sin_family = AF_INET;
480 sin.sin_port = htons(port);
481 if (!inet_pton(AF_INET, "127.0.0.1", &sin.sin_addr)) {
482 PrintSocketError("inet_pton");
486 if (connect(sock, reinterpret_cast<const sockaddr*>(&sin),
488 PrintSocketError("connect");
497 explicit SocketCloser(int sock) : sock_(sock) {}
499 // Half-close and drain the socket before releasing it. This seems to be
500 // necessary for graceful shutdown on Windows. It will also avoid write
501 // failures in the test runner.
502 #if defined(OPENSSL_SYS_WINDOWS)
503 shutdown(sock_, SD_SEND);
505 shutdown(sock_, SHUT_WR);
509 if (recv(sock_, buf, sizeof(buf), 0) <= 0) {
520 static bssl::UniquePtr<SSL_CTX> SetupCtx(const TestConfig *config) {
521 const char sess_id_ctx[] = "ossl_shim";
522 bssl::UniquePtr<SSL_CTX> ssl_ctx(SSL_CTX_new(
523 config->is_dtls ? DTLS_method() : TLS_method()));
528 SSL_CTX_set_security_level(ssl_ctx.get(), 0);
530 /* Disabled for now until we have some TLS1.3 support */
531 // Enable TLS 1.3 for tests.
532 if (!config->is_dtls &&
533 !SSL_CTX_set_max_proto_version(ssl_ctx.get(), TLS1_3_VERSION)) {
538 std::string cipher_list = "ALL";
539 if (!config->cipher.empty()) {
540 cipher_list = config->cipher;
541 SSL_CTX_set_options(ssl_ctx.get(), SSL_OP_CIPHER_SERVER_PREFERENCE);
543 if (!SSL_CTX_set_cipher_list(ssl_ctx.get(), cipher_list.c_str())) {
549 if (config->use_sparse_dh_prime) {
554 if (p == NULL || g == NULL || tmpdh == NULL) {
560 // This prime number is 2^1024 + 643 – a value just above a power of two.
561 // Because of its form, values modulo it are essentially certain to be one
562 // byte shorter. This is used to test padding of these values.
565 "1000000000000000000000000000000000000000000000000000000000000000"
566 "0000000000000000000000000000000000000000000000000000000000000000"
567 "0000000000000000000000000000000000000000000000000000000000000000"
568 "0000000000000000000000000000000000000000000000000000000000000028"
570 !BN_set_word(g, 2)) {
576 DH_set0_pqg(tmpdh, p, NULL, g);
578 tmpdh = DH_get_2048_256();
581 bssl::UniquePtr<DH> dh(tmpdh);
583 if (!dh || !SSL_CTX_set_tmp_dh(ssl_ctx.get(), dh.get())) {
587 SSL_CTX_set_session_cache_mode(ssl_ctx.get(), SSL_SESS_CACHE_BOTH);
589 if (config->use_old_client_cert_callback) {
590 SSL_CTX_set_client_cert_cb(ssl_ctx.get(), ClientCertCallback);
593 SSL_CTX_set_npn_advertised_cb(
594 ssl_ctx.get(), NextProtosAdvertisedCallback, NULL);
595 if (!config->select_next_proto.empty()) {
596 SSL_CTX_set_next_proto_select_cb(ssl_ctx.get(), NextProtoSelectCallback,
600 if (!config->select_alpn.empty() || config->decline_alpn) {
601 SSL_CTX_set_alpn_select_cb(ssl_ctx.get(), AlpnSelectCallback, NULL);
604 SSL_CTX_set_info_callback(ssl_ctx.get(), InfoCallback);
605 SSL_CTX_sess_set_new_cb(ssl_ctx.get(), NewSessionCallback);
607 if (config->use_ticket_callback) {
608 SSL_CTX_set_tlsext_ticket_key_cb(ssl_ctx.get(), TicketKeyCallback);
611 if (config->enable_client_custom_extension &&
612 !SSL_CTX_add_client_custom_ext(
613 ssl_ctx.get(), kCustomExtensionValue, CustomExtensionAddCallback,
614 CustomExtensionFreeCallback, kCustomExtensionAddArg,
615 CustomExtensionParseCallback, kCustomExtensionParseArg)) {
619 if (config->enable_server_custom_extension &&
620 !SSL_CTX_add_server_custom_ext(
621 ssl_ctx.get(), kCustomExtensionValue, CustomExtensionAddCallback,
622 CustomExtensionFreeCallback, kCustomExtensionAddArg,
623 CustomExtensionParseCallback, kCustomExtensionParseArg)) {
627 if (config->verify_fail) {
628 SSL_CTX_set_cert_verify_callback(ssl_ctx.get(), VerifyFail, NULL);
630 SSL_CTX_set_cert_verify_callback(ssl_ctx.get(), VerifySucceed, NULL);
633 if (config->use_null_client_ca_list) {
634 SSL_CTX_set_client_CA_list(ssl_ctx.get(), nullptr);
637 SSL_CTX_set_session_id_context(ssl_ctx.get(),
638 (const unsigned char *)sess_id_ctx,
639 sizeof(sess_id_ctx) - 1);
644 // RetryAsync is called after a failed operation on |ssl| with return code
645 // |ret|. If the operation should be retried, it simulates one asynchronous
646 // event and returns true. Otherwise it returns false.
647 static bool RetryAsync(SSL *ssl, int ret) {
648 // No error; don't retry.
653 TestState *test_state = GetTestState(ssl);
654 assert(GetTestConfig(ssl)->async);
656 if (test_state->packeted_bio != nullptr &&
657 PacketedBioAdvanceClock(test_state->packeted_bio)) {
658 // The DTLS retransmit logic silently ignores write failures. So the test
659 // may progress, allow writes through synchronously.
660 AsyncBioEnforceWriteQuota(test_state->async_bio, false);
661 int timeout_ret = DTLSv1_handle_timeout(ssl);
662 AsyncBioEnforceWriteQuota(test_state->async_bio, true);
664 if (timeout_ret < 0) {
665 fprintf(stderr, "Error retransmitting.\n");
671 // See if we needed to read or write more. If so, allow one byte through on
672 // the appropriate end to maximally stress the state machine.
673 switch (SSL_get_error(ssl, ret)) {
674 case SSL_ERROR_WANT_READ:
675 AsyncBioAllowRead(test_state->async_bio, 1);
677 case SSL_ERROR_WANT_WRITE:
678 AsyncBioAllowWrite(test_state->async_bio, 1);
680 case SSL_ERROR_WANT_X509_LOOKUP:
681 test_state->cert_ready = true;
688 // DoRead reads from |ssl|, resolving any asynchronous operations. It returns
689 // the result value of the final |SSL_read| call.
690 static int DoRead(SSL *ssl, uint8_t *out, size_t max_out) {
691 const TestConfig *config = GetTestConfig(ssl);
692 TestState *test_state = GetTestState(ssl);
696 // The DTLS retransmit logic silently ignores write failures. So the test
697 // may progress, allow writes through synchronously. |SSL_read| may
698 // trigger a retransmit, so disconnect the write quota.
699 AsyncBioEnforceWriteQuota(test_state->async_bio, false);
701 ret = config->peek_then_read ? SSL_peek(ssl, out, max_out)
702 : SSL_read(ssl, out, max_out);
704 AsyncBioEnforceWriteQuota(test_state->async_bio, true);
706 } while (config->async && RetryAsync(ssl, ret));
708 if (config->peek_then_read && ret > 0) {
709 std::unique_ptr<uint8_t[]> buf(new uint8_t[static_cast<size_t>(ret)]);
711 // SSL_peek should synchronously return the same data.
712 int ret2 = SSL_peek(ssl, buf.get(), ret);
714 memcmp(buf.get(), out, ret) != 0) {
715 fprintf(stderr, "First and second SSL_peek did not match.\n");
719 // SSL_read should synchronously return the same data and consume it.
720 ret2 = SSL_read(ssl, buf.get(), ret);
722 memcmp(buf.get(), out, ret) != 0) {
723 fprintf(stderr, "SSL_peek and SSL_read did not match.\n");
731 // WriteAll writes |in_len| bytes from |in| to |ssl|, resolving any asynchronous
732 // operations. It returns the result of the final |SSL_write| call.
733 static int WriteAll(SSL *ssl, const uint8_t *in, size_t in_len) {
734 const TestConfig *config = GetTestConfig(ssl);
737 ret = SSL_write(ssl, in, in_len);
742 } while ((config->async && RetryAsync(ssl, ret)) || (ret > 0 && in_len > 0));
746 // DoShutdown calls |SSL_shutdown|, resolving any asynchronous operations. It
747 // returns the result of the final |SSL_shutdown| call.
748 static int DoShutdown(SSL *ssl) {
749 const TestConfig *config = GetTestConfig(ssl);
752 ret = SSL_shutdown(ssl);
753 } while (config->async && RetryAsync(ssl, ret));
757 static uint16_t GetProtocolVersion(const SSL *ssl) {
758 uint16_t version = SSL_version(ssl);
759 if (!SSL_is_dtls(ssl)) {
762 return 0x0201 + ~version;
765 // CheckHandshakeProperties checks, immediately after |ssl| completes its
766 // initial handshake (or False Starts), whether all the properties are
767 // consistent with the test configuration and invariants.
768 static bool CheckHandshakeProperties(SSL *ssl, bool is_resume) {
769 const TestConfig *config = GetTestConfig(ssl);
771 if (SSL_get_current_cipher(ssl) == nullptr) {
772 fprintf(stderr, "null cipher after handshake\n");
777 (!!SSL_session_reused(ssl) == config->expect_session_miss)) {
778 fprintf(stderr, "session was%s reused\n",
779 SSL_session_reused(ssl) ? "" : " not");
783 if (!GetTestState(ssl)->handshake_done) {
784 fprintf(stderr, "handshake was not completed\n");
788 if (!config->is_server) {
789 bool expect_new_session =
790 !config->expect_no_session &&
791 (!SSL_session_reused(ssl) || config->expect_ticket_renewal) &&
792 // Session tickets are sent post-handshake in TLS 1.3.
793 GetProtocolVersion(ssl) < TLS1_3_VERSION;
794 if (expect_new_session != GetTestState(ssl)->got_new_session) {
796 "new session was%s cached, but we expected the opposite\n",
797 GetTestState(ssl)->got_new_session ? "" : " not");
802 if (!config->expected_server_name.empty()) {
803 const char *server_name =
804 SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
805 if (server_name != config->expected_server_name) {
806 fprintf(stderr, "servername mismatch (got %s; want %s)\n",
807 server_name, config->expected_server_name.c_str());
812 if (!config->expected_next_proto.empty()) {
813 const uint8_t *next_proto;
814 unsigned next_proto_len;
815 SSL_get0_next_proto_negotiated(ssl, &next_proto, &next_proto_len);
816 if (next_proto_len != config->expected_next_proto.size() ||
817 memcmp(next_proto, config->expected_next_proto.data(),
818 next_proto_len) != 0) {
819 fprintf(stderr, "negotiated next proto mismatch\n");
824 if (!config->expected_alpn.empty()) {
825 const uint8_t *alpn_proto;
826 unsigned alpn_proto_len;
827 SSL_get0_alpn_selected(ssl, &alpn_proto, &alpn_proto_len);
828 if (alpn_proto_len != config->expected_alpn.size() ||
829 memcmp(alpn_proto, config->expected_alpn.data(),
830 alpn_proto_len) != 0) {
831 fprintf(stderr, "negotiated alpn proto mismatch\n");
836 if (config->expect_extended_master_secret) {
837 if (!SSL_get_extms_support(ssl)) {
838 fprintf(stderr, "No EMS for connection when expected");
843 if (config->expect_verify_result) {
844 int expected_verify_result = config->verify_fail ?
845 X509_V_ERR_APPLICATION_VERIFICATION :
848 if (SSL_get_verify_result(ssl) != expected_verify_result) {
849 fprintf(stderr, "Wrong certificate verification result\n");
854 if (!config->psk.empty()) {
855 if (SSL_get_peer_cert_chain(ssl) != nullptr) {
856 fprintf(stderr, "Received peer certificate on a PSK cipher.\n");
859 } else if (!config->is_server || config->require_any_client_certificate) {
860 if (SSL_get_peer_certificate(ssl) == nullptr) {
861 fprintf(stderr, "Received no peer certificate but expected one.\n");
869 // DoExchange runs a test SSL exchange against the peer. On success, it returns
870 // true and sets |*out_session| to the negotiated SSL session. If the test is a
871 // resumption attempt, |is_resume| is true and |session| is the session from the
872 // previous exchange.
873 static bool DoExchange(bssl::UniquePtr<SSL_SESSION> *out_session,
874 SSL_CTX *ssl_ctx, const TestConfig *config,
875 bool is_resume, SSL_SESSION *session) {
876 bssl::UniquePtr<SSL> ssl(SSL_new(ssl_ctx));
881 if (!SetTestConfig(ssl.get(), config) ||
882 !SetTestState(ssl.get(), std::unique_ptr<TestState>(new TestState))) {
886 if (config->fallback_scsv &&
887 !SSL_set_mode(ssl.get(), SSL_MODE_SEND_FALLBACK_SCSV)) {
890 // Install the certificate synchronously if nothing else will handle it.
891 if (!config->use_old_client_cert_callback &&
893 !InstallCertificate(ssl.get())) {
896 SSL_set_cert_cb(ssl.get(), CertCallback, nullptr);
897 if (config->require_any_client_certificate) {
898 SSL_set_verify(ssl.get(), SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
901 if (config->verify_peer) {
902 SSL_set_verify(ssl.get(), SSL_VERIFY_PEER, NULL);
904 if (config->partial_write) {
905 SSL_set_mode(ssl.get(), SSL_MODE_ENABLE_PARTIAL_WRITE);
907 if (config->no_tls13) {
908 SSL_set_options(ssl.get(), SSL_OP_NO_TLSv1_3);
910 if (config->no_tls12) {
911 SSL_set_options(ssl.get(), SSL_OP_NO_TLSv1_2);
913 if (config->no_tls11) {
914 SSL_set_options(ssl.get(), SSL_OP_NO_TLSv1_1);
916 if (config->no_tls1) {
917 SSL_set_options(ssl.get(), SSL_OP_NO_TLSv1);
919 if (config->no_ssl3) {
920 SSL_set_options(ssl.get(), SSL_OP_NO_SSLv3);
922 if (!config->host_name.empty() &&
923 !SSL_set_tlsext_host_name(ssl.get(), config->host_name.c_str())) {
926 if (!config->advertise_alpn.empty() &&
927 SSL_set_alpn_protos(ssl.get(),
928 (const uint8_t *)config->advertise_alpn.data(),
929 config->advertise_alpn.size()) != 0) {
932 if (!config->psk.empty()) {
933 SSL_set_psk_client_callback(ssl.get(), PskClientCallback);
934 SSL_set_psk_server_callback(ssl.get(), PskServerCallback);
936 if (!config->psk_identity.empty() &&
937 !SSL_use_psk_identity_hint(ssl.get(), config->psk_identity.c_str())) {
940 if (!config->srtp_profiles.empty() &&
941 SSL_set_tlsext_use_srtp(ssl.get(), config->srtp_profiles.c_str())) {
944 if (config->min_version != 0 &&
945 !SSL_set_min_proto_version(ssl.get(), (uint16_t)config->min_version)) {
948 if (config->max_version != 0 &&
949 !SSL_set_max_proto_version(ssl.get(), (uint16_t)config->max_version)) {
952 if (config->mtu != 0) {
953 SSL_set_options(ssl.get(), SSL_OP_NO_QUERY_MTU);
954 SSL_set_mtu(ssl.get(), config->mtu);
956 if (config->renegotiate_freely) {
957 // This is always on for OpenSSL.
959 if (!config->check_close_notify) {
960 SSL_set_quiet_shutdown(ssl.get(), 1);
962 if (config->p384_only) {
963 int nid = NID_secp384r1;
964 if (!SSL_set1_curves(ssl.get(), &nid, 1)) {
968 if (config->enable_all_curves) {
969 static const int kAllCurves[] = {
970 NID_X9_62_prime256v1, NID_secp384r1, NID_secp521r1, NID_X25519,
972 if (!SSL_set1_curves(ssl.get(), kAllCurves,
973 OPENSSL_ARRAY_SIZE(kAllCurves))) {
977 if (config->max_cert_list > 0) {
978 SSL_set_max_cert_list(ssl.get(), config->max_cert_list);
981 int sock = Connect(config->port);
985 SocketCloser closer(sock);
987 bssl::UniquePtr<BIO> bio(BIO_new_socket(sock, BIO_NOCLOSE));
991 if (config->is_dtls) {
992 bssl::UniquePtr<BIO> packeted = PacketedBioCreate(!config->async);
996 GetTestState(ssl.get())->packeted_bio = packeted.get();
997 BIO_push(packeted.get(), bio.release());
998 bio = std::move(packeted);
1000 if (config->async) {
1001 bssl::UniquePtr<BIO> async_scoped =
1002 config->is_dtls ? AsyncBioCreateDatagram() : AsyncBioCreate();
1003 if (!async_scoped) {
1006 BIO_push(async_scoped.get(), bio.release());
1007 GetTestState(ssl.get())->async_bio = async_scoped.get();
1008 bio = std::move(async_scoped);
1010 SSL_set_bio(ssl.get(), bio.get(), bio.get());
1011 bio.release(); // SSL_set_bio takes ownership.
1013 if (session != NULL) {
1014 if (!config->is_server) {
1015 if (SSL_set_session(ssl.get(), session) != 1) {
1022 // KNOWN BUG: OpenSSL's SSL_get_current_cipher behaves incorrectly when
1023 // offering resumption.
1024 if (SSL_get_current_cipher(ssl.get()) != nullptr) {
1025 fprintf(stderr, "non-null cipher before handshake\n");
1031 if (config->implicit_handshake) {
1032 if (config->is_server) {
1033 SSL_set_accept_state(ssl.get());
1035 SSL_set_connect_state(ssl.get());
1039 if (config->is_server) {
1040 ret = SSL_accept(ssl.get());
1042 ret = SSL_connect(ssl.get());
1044 } while (config->async && RetryAsync(ssl.get(), ret));
1046 !CheckHandshakeProperties(ssl.get(), is_resume)) {
1050 // Reset the state to assert later that the callback isn't called in
1052 GetTestState(ssl.get())->got_new_session = false;
1055 if (config->export_keying_material > 0) {
1056 std::vector<uint8_t> result(
1057 static_cast<size_t>(config->export_keying_material));
1058 if (SSL_export_keying_material(
1059 ssl.get(), result.data(), result.size(),
1060 config->export_label.data(), config->export_label.size(),
1061 reinterpret_cast<const uint8_t*>(config->export_context.data()),
1062 config->export_context.size(), config->use_export_context) != 1) {
1063 fprintf(stderr, "failed to export keying material\n");
1066 if (WriteAll(ssl.get(), result.data(), result.size()) < 0) {
1071 if (config->write_different_record_sizes) {
1072 if (config->is_dtls) {
1073 fprintf(stderr, "write_different_record_sizes not supported for DTLS\n");
1076 // This mode writes a number of different record sizes in an attempt to
1077 // trip up the CBC record splitting code.
1078 static const size_t kBufLen = 32769;
1079 std::unique_ptr<uint8_t[]> buf(new uint8_t[kBufLen]);
1080 memset(buf.get(), 0x42, kBufLen);
1081 static const size_t kRecordSizes[] = {
1082 0, 1, 255, 256, 257, 16383, 16384, 16385, 32767, 32768, 32769};
1083 for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(kRecordSizes); i++) {
1084 const size_t len = kRecordSizes[i];
1085 if (len > kBufLen) {
1086 fprintf(stderr, "Bad kRecordSizes value.\n");
1089 if (WriteAll(ssl.get(), buf.get(), len) < 0) {
1094 if (config->shim_writes_first) {
1095 if (WriteAll(ssl.get(), reinterpret_cast<const uint8_t *>("hello"),
1100 if (!config->shim_shuts_down) {
1102 static const size_t kBufLen = 16384;
1103 std::unique_ptr<uint8_t[]> buf(new uint8_t[kBufLen]);
1105 // Read only 512 bytes at a time in TLS to ensure records may be
1106 // returned in multiple reads.
1107 int n = DoRead(ssl.get(), buf.get(), config->is_dtls ? kBufLen : 512);
1108 int err = SSL_get_error(ssl.get(), n);
1109 if (err == SSL_ERROR_ZERO_RETURN ||
1110 (n == 0 && err == SSL_ERROR_SYSCALL)) {
1112 fprintf(stderr, "Invalid SSL_get_error output\n");
1115 // Stop on either clean or unclean shutdown.
1117 } else if (err != SSL_ERROR_NONE) {
1119 fprintf(stderr, "Invalid SSL_get_error output\n");
1124 // Successfully read data.
1126 fprintf(stderr, "Invalid SSL_get_error output\n");
1130 // After a successful read, with or without False Start, the handshake
1131 // must be complete.
1132 if (!GetTestState(ssl.get())->handshake_done) {
1133 fprintf(stderr, "handshake was not completed after SSL_read\n");
1137 for (int i = 0; i < n; i++) {
1140 if (WriteAll(ssl.get(), buf.get(), n) < 0) {
1147 if (!config->is_server &&
1148 !config->implicit_handshake &&
1149 // Session tickets are sent post-handshake in TLS 1.3.
1150 GetProtocolVersion(ssl.get()) < TLS1_3_VERSION &&
1151 GetTestState(ssl.get())->got_new_session) {
1152 fprintf(stderr, "new session was established after the handshake\n");
1156 if (GetProtocolVersion(ssl.get()) >= TLS1_3_VERSION && !config->is_server) {
1157 bool expect_new_session =
1158 !config->expect_no_session && !config->shim_shuts_down;
1159 if (expect_new_session != GetTestState(ssl.get())->got_new_session) {
1161 "new session was%s cached, but we expected the opposite\n",
1162 GetTestState(ssl.get())->got_new_session ? "" : " not");
1168 *out_session = std::move(GetTestState(ssl.get())->new_session);
1171 ret = DoShutdown(ssl.get());
1173 if (config->shim_shuts_down && config->check_close_notify) {
1174 // We initiate shutdown, so |SSL_shutdown| will return in two stages. First
1175 // it returns zero when our close_notify is sent, then one when the peer's
1178 fprintf(stderr, "Unexpected SSL_shutdown result: %d != 0\n", ret);
1181 ret = DoShutdown(ssl.get());
1185 fprintf(stderr, "Unexpected SSL_shutdown result: %d != 1\n", ret);
1189 if (SSL_total_renegotiations(ssl.get()) !=
1190 config->expect_total_renegotiations) {
1191 fprintf(stderr, "Expected %d renegotiations, got %ld\n",
1192 config->expect_total_renegotiations,
1193 SSL_total_renegotiations(ssl.get()));
1200 class StderrDelimiter {
1202 ~StderrDelimiter() { fprintf(stderr, "--- DONE ---\n"); }
1205 static int Main(int argc, char **argv) {
1206 // To distinguish ASan's output from ours, add a trailing message to stderr.
1207 // Anything following this line will be considered an error.
1208 StderrDelimiter delimiter;
1210 #if defined(OPENSSL_SYS_WINDOWS)
1211 /* Initialize Winsock. */
1212 WORD wsa_version = MAKEWORD(2, 2);
1214 int wsa_err = WSAStartup(wsa_version, &wsa_data);
1216 fprintf(stderr, "WSAStartup failed: %d\n", wsa_err);
1219 if (wsa_data.wVersion != wsa_version) {
1220 fprintf(stderr, "Didn't get expected version: %x\n", wsa_data.wVersion);
1224 signal(SIGPIPE, SIG_IGN);
1227 OPENSSL_init_crypto(0, NULL);
1228 OPENSSL_init_ssl(0, NULL);
1229 g_config_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
1230 g_state_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, TestStateExFree);
1231 if (g_config_index < 0 || g_state_index < 0) {
1236 if (!ParseConfig(argc - 1, argv + 1, &config)) {
1237 return Usage(argv[0]);
1240 bssl::UniquePtr<SSL_CTX> ssl_ctx = SetupCtx(&config);
1242 ERR_print_errors_fp(stderr);
1246 bssl::UniquePtr<SSL_SESSION> session;
1247 for (int i = 0; i < config.resume_count + 1; i++) {
1248 bool is_resume = i > 0;
1249 if (is_resume && !config.is_server && !session) {
1250 fprintf(stderr, "No session to offer.\n");
1254 bssl::UniquePtr<SSL_SESSION> offer_session = std::move(session);
1255 if (!DoExchange(&session, ssl_ctx.get(), &config, is_resume,
1256 offer_session.get())) {
1257 fprintf(stderr, "Connection %d failed.\n", i + 1);
1258 ERR_print_errors_fp(stderr);
1268 int main(int argc, char **argv) {
1269 return bssl::Main(argc, argv);