| /* Copyright (c) 2014, Google Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ |
| |
| #include <openssl/base.h> |
| |
| #if !defined(OPENSSL_WINDOWS) |
| #include <arpa/inet.h> |
| #include <netinet/in.h> |
| #include <netinet/tcp.h> |
| #include <signal.h> |
| #include <sys/socket.h> |
| #include <sys/time.h> |
| #include <unistd.h> |
| #else |
| #include <io.h> |
| OPENSSL_MSVC_PRAGMA(warning(push, 3)) |
| #include <winsock2.h> |
| #include <ws2tcpip.h> |
| OPENSSL_MSVC_PRAGMA(warning(pop)) |
| |
| OPENSSL_MSVC_PRAGMA(comment(lib, "Ws2_32.lib")) |
| #endif |
| |
| #include <assert.h> |
| #include <inttypes.h> |
| #include <string.h> |
| #include <time.h> |
| |
| #include <openssl/aead.h> |
| #include <openssl/bio.h> |
| #include <openssl/buf.h> |
| #include <openssl/bytestring.h> |
| #include <openssl/cipher.h> |
| #include <openssl/crypto.h> |
| #include <openssl/digest.h> |
| #include <openssl/err.h> |
| #include <openssl/evp.h> |
| #include <openssl/hmac.h> |
| #include <openssl/nid.h> |
| #include <openssl/rand.h> |
| #include <openssl/ssl.h> |
| #include <openssl/x509.h> |
| |
| #include <functional> |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "../../crypto/internal.h" |
| #include "../internal.h" |
| #include "async_bio.h" |
| #include "handshake_util.h" |
| #include "packeted_bio.h" |
| #include "settings_writer.h" |
| #include "test_config.h" |
| #include "test_state.h" |
| |
| #if defined(OPENSSL_LINUX) && !defined(OPENSSL_ANDROID) |
| #define HANDSHAKER_SUPPORTED |
| #endif |
| |
| |
| #if !defined(OPENSSL_WINDOWS) |
| static int closesocket(int sock) { |
| return close(sock); |
| } |
| |
| static void PrintSocketError(const char *func) { |
| perror(func); |
| } |
| #else |
| static void PrintSocketError(const char *func) { |
| fprintf(stderr, "%s: %d\n", func, WSAGetLastError()); |
| } |
| #endif |
| |
| static int Usage(const char *program) { |
| fprintf(stderr, "Usage: %s [flags...]\n", program); |
| return 1; |
| } |
| |
| template<typename T> |
| struct Free { |
| void operator()(T *buf) { |
| free(buf); |
| } |
| }; |
| |
| // Connect returns a new socket connected to localhost on |port| or -1 on |
| // error. |
| static int Connect(uint16_t port) { |
| for (int af : { AF_INET6, AF_INET }) { |
| int sock = socket(af, SOCK_STREAM, 0); |
| if (sock == -1) { |
| PrintSocketError("socket"); |
| return -1; |
| } |
| int nodelay = 1; |
| if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, |
| reinterpret_cast<const char*>(&nodelay), sizeof(nodelay)) != 0) { |
| PrintSocketError("setsockopt"); |
| closesocket(sock); |
| return -1; |
| } |
| |
| sockaddr_storage ss; |
| OPENSSL_memset(&ss, 0, sizeof(ss)); |
| ss.ss_family = af; |
| socklen_t len = 0; |
| |
| if (af == AF_INET6) { |
| sockaddr_in6 *sin6 = (sockaddr_in6 *) &ss; |
| len = sizeof(*sin6); |
| sin6->sin6_port = htons(port); |
| if (!inet_pton(AF_INET6, "::1", &sin6->sin6_addr)) { |
| PrintSocketError("inet_pton"); |
| closesocket(sock); |
| return -1; |
| } |
| } else if (af == AF_INET) { |
| sockaddr_in *sin = (sockaddr_in *) &ss; |
| len = sizeof(*sin); |
| sin->sin_port = htons(port); |
| if (!inet_pton(AF_INET, "127.0.0.1", &sin->sin_addr)) { |
| PrintSocketError("inet_pton"); |
| closesocket(sock); |
| return -1; |
| } |
| } |
| |
| if (connect(sock, reinterpret_cast<const sockaddr*>(&ss), len) == 0) { |
| return sock; |
| } |
| closesocket(sock); |
| } |
| |
| PrintSocketError("connect"); |
| return -1; |
| } |
| |
| class SocketCloser { |
| public: |
| explicit SocketCloser(int sock) : sock_(sock) {} |
| ~SocketCloser() { |
| // Half-close and drain the socket before releasing it. This seems to be |
| // necessary for graceful shutdown on Windows. It will also avoid write |
| // failures in the test runner. |
| #if defined(OPENSSL_WINDOWS) |
| shutdown(sock_, SD_SEND); |
| #else |
| shutdown(sock_, SHUT_WR); |
| #endif |
| while (true) { |
| char buf[1024]; |
| if (recv(sock_, buf, sizeof(buf), 0) <= 0) { |
| break; |
| } |
| } |
| closesocket(sock_); |
| } |
| |
| private: |
| const int sock_; |
| }; |
| |
| // DoRead reads from |ssl|, resolving any asynchronous operations. It returns |
| // the result value of the final |SSL_read| call. |
| static int DoRead(SSL *ssl, uint8_t *out, size_t max_out) { |
| const TestConfig *config = GetTestConfig(ssl); |
| TestState *test_state = GetTestState(ssl); |
| int ret; |
| do { |
| if (config->async) { |
| // The DTLS retransmit logic silently ignores write failures. So the test |
| // may progress, allow writes through synchronously. |SSL_read| may |
| // trigger a retransmit, so disconnect the write quota. |
| AsyncBioEnforceWriteQuota(test_state->async_bio, false); |
| } |
| ret = CheckIdempotentError("SSL_peek/SSL_read", ssl, [&]() -> int { |
| return config->peek_then_read ? SSL_peek(ssl, out, max_out) |
| : SSL_read(ssl, out, max_out); |
| }); |
| if (config->async) { |
| AsyncBioEnforceWriteQuota(test_state->async_bio, true); |
| } |
| |
| // Run the exporter after each read. This is to test that the exporter fails |
| // during a renegotiation. |
| if (config->use_exporter_between_reads) { |
| uint8_t buf; |
| if (!SSL_export_keying_material(ssl, &buf, 1, NULL, 0, NULL, 0, 0)) { |
| fprintf(stderr, "failed to export keying material\n"); |
| return -1; |
| } |
| } |
| } while (config->async && RetryAsync(ssl, ret)); |
| |
| if (config->peek_then_read && ret > 0) { |
| std::unique_ptr<uint8_t[]> buf(new uint8_t[static_cast<size_t>(ret)]); |
| |
| // SSL_peek should synchronously return the same data. |
| int ret2 = SSL_peek(ssl, buf.get(), ret); |
| if (ret2 != ret || |
| OPENSSL_memcmp(buf.get(), out, ret) != 0) { |
| fprintf(stderr, "First and second SSL_peek did not match.\n"); |
| return -1; |
| } |
| |
| // SSL_read should synchronously return the same data and consume it. |
| ret2 = SSL_read(ssl, buf.get(), ret); |
| if (ret2 != ret || |
| OPENSSL_memcmp(buf.get(), out, ret) != 0) { |
| fprintf(stderr, "SSL_peek and SSL_read did not match.\n"); |
| return -1; |
| } |
| } |
| |
| return ret; |
| } |
| |
| // WriteAll writes |in_len| bytes from |in| to |ssl|, resolving any asynchronous |
| // operations. It returns the result of the final |SSL_write| call. |
| static int WriteAll(SSL *ssl, const void *in_, size_t in_len) { |
| const uint8_t *in = reinterpret_cast<const uint8_t *>(in_); |
| const TestConfig *config = GetTestConfig(ssl); |
| int ret; |
| do { |
| ret = SSL_write(ssl, in, in_len); |
| if (ret > 0) { |
| in += ret; |
| in_len -= ret; |
| } |
| } while ((config->async && RetryAsync(ssl, ret)) || (ret > 0 && in_len > 0)); |
| return ret; |
| } |
| |
| // DoShutdown calls |SSL_shutdown|, resolving any asynchronous operations. It |
| // returns the result of the final |SSL_shutdown| call. |
| static int DoShutdown(SSL *ssl) { |
| const TestConfig *config = GetTestConfig(ssl); |
| int ret; |
| do { |
| ret = SSL_shutdown(ssl); |
| } while (config->async && RetryAsync(ssl, ret)); |
| return ret; |
| } |
| |
| // DoSendFatalAlert calls |SSL_send_fatal_alert|, resolving any asynchronous |
| // operations. It returns the result of the final |SSL_send_fatal_alert| call. |
| static int DoSendFatalAlert(SSL *ssl, uint8_t alert) { |
| const TestConfig *config = GetTestConfig(ssl); |
| int ret; |
| do { |
| ret = SSL_send_fatal_alert(ssl, alert); |
| } while (config->async && RetryAsync(ssl, ret)); |
| return ret; |
| } |
| |
| static uint16_t GetProtocolVersion(const SSL *ssl) { |
| uint16_t version = SSL_version(ssl); |
| if (!SSL_is_dtls(ssl)) { |
| return version; |
| } |
| return 0x0201 + ~version; |
| } |
| |
| // CheckAuthProperties checks, after the initial handshake is completed or |
| // after a renegotiation, that authentication-related properties match |config|. |
| static bool CheckAuthProperties(SSL *ssl, bool is_resume, |
| const TestConfig *config) { |
| if (!config->expected_ocsp_response.empty()) { |
| const uint8_t *data; |
| size_t len; |
| SSL_get0_ocsp_response(ssl, &data, &len); |
| if (config->expected_ocsp_response.size() != len || |
| OPENSSL_memcmp(config->expected_ocsp_response.data(), data, len) != 0) { |
| fprintf(stderr, "OCSP response mismatch\n"); |
| return false; |
| } |
| } |
| |
| if (!config->expected_signed_cert_timestamps.empty()) { |
| const uint8_t *data; |
| size_t len; |
| SSL_get0_signed_cert_timestamp_list(ssl, &data, &len); |
| if (config->expected_signed_cert_timestamps.size() != len || |
| OPENSSL_memcmp(config->expected_signed_cert_timestamps.data(), data, |
| len) != 0) { |
| fprintf(stderr, "SCT list mismatch\n"); |
| return false; |
| } |
| } |
| |
| if (config->expect_verify_result) { |
| int expected_verify_result = config->verify_fail ? |
| X509_V_ERR_APPLICATION_VERIFICATION : |
| X509_V_OK; |
| |
| if (SSL_get_verify_result(ssl) != expected_verify_result) { |
| fprintf(stderr, "Wrong certificate verification result\n"); |
| return false; |
| } |
| } |
| |
| if (!config->expect_peer_cert_file.empty()) { |
| bssl::UniquePtr<X509> expect_leaf; |
| bssl::UniquePtr<STACK_OF(X509)> expect_chain; |
| if (!LoadCertificate(&expect_leaf, &expect_chain, |
| config->expect_peer_cert_file)) { |
| return false; |
| } |
| |
| // For historical reasons, clients report a chain with a leaf and servers |
| // without. |
| if (!config->is_server) { |
| if (!sk_X509_insert(expect_chain.get(), expect_leaf.get(), 0)) { |
| return false; |
| } |
| X509_up_ref(expect_leaf.get()); // sk_X509_insert takes ownership. |
| } |
| |
| bssl::UniquePtr<X509> leaf(SSL_get_peer_certificate(ssl)); |
| STACK_OF(X509) *chain = SSL_get_peer_cert_chain(ssl); |
| if (X509_cmp(leaf.get(), expect_leaf.get()) != 0) { |
| fprintf(stderr, "Received a different leaf certificate than expected.\n"); |
| return false; |
| } |
| |
| if (sk_X509_num(chain) != sk_X509_num(expect_chain.get())) { |
| fprintf(stderr, "Received a chain of length %zu instead of %zu.\n", |
| sk_X509_num(chain), sk_X509_num(expect_chain.get())); |
| return false; |
| } |
| |
| for (size_t i = 0; i < sk_X509_num(chain); i++) { |
| if (X509_cmp(sk_X509_value(chain, i), |
| sk_X509_value(expect_chain.get(), i)) != 0) { |
| fprintf(stderr, "Chain certificate %zu did not match.\n", |
| i + 1); |
| return false; |
| } |
| } |
| } |
| |
| if (!!SSL_SESSION_has_peer_sha256(SSL_get_session(ssl)) != |
| config->expect_sha256_client_cert) { |
| fprintf(stderr, |
| "Unexpected SHA-256 client cert state: expected:%d is_resume:%d.\n", |
| config->expect_sha256_client_cert, is_resume); |
| return false; |
| } |
| |
| if (config->expect_sha256_client_cert && |
| SSL_SESSION_get0_peer_certificates(SSL_get_session(ssl)) != nullptr) { |
| fprintf(stderr, "Have both client cert and SHA-256 hash: is_resume:%d.\n", |
| is_resume); |
| return false; |
| } |
| |
| const uint8_t *peer_sha256; |
| size_t peer_sha256_len; |
| SSL_SESSION_get0_peer_sha256(SSL_get_session(ssl), &peer_sha256, |
| &peer_sha256_len); |
| if (SSL_SESSION_has_peer_sha256(SSL_get_session(ssl))) { |
| if (peer_sha256_len != 32) { |
| fprintf(stderr, "Peer SHA-256 hash had length %zu instead of 32\n", |
| peer_sha256_len); |
| return false; |
| } |
| } else { |
| if (peer_sha256_len != 0) { |
| fprintf(stderr, "Unexpected peer SHA-256 hash of length %zu\n", |
| peer_sha256_len); |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| static const char *EarlyDataReasonToString(ssl_early_data_reason_t reason) { |
| switch (reason) { |
| case ssl_early_data_unknown: |
| return "unknown"; |
| case ssl_early_data_disabled: |
| return "disabled"; |
| case ssl_early_data_accepted: |
| return "accepted"; |
| case ssl_early_data_protocol_version: |
| return "protocol_version"; |
| case ssl_early_data_peer_declined: |
| return "peer_declined"; |
| case ssl_early_data_no_session_offered: |
| return "no_session_offered"; |
| case ssl_early_data_session_not_resumed: |
| return "session_not_resumed"; |
| case ssl_early_data_unsupported_for_session: |
| return "unsupported_for_session"; |
| case ssl_early_data_hello_retry_request: |
| return "hello_retry_request"; |
| case ssl_early_data_alpn_mismatch: |
| return "alpn_mismatch"; |
| case ssl_early_data_channel_id: |
| return "channel_id"; |
| case ssl_early_data_token_binding: |
| return "token_binding"; |
| case ssl_early_data_ticket_age_skew: |
| return "ticket_age_skew"; |
| } |
| |
| abort(); |
| } |
| |
| // CheckHandshakeProperties checks, immediately after |ssl| completes its |
| // initial handshake (or False Starts), whether all the properties are |
| // consistent with the test configuration and invariants. |
| static bool CheckHandshakeProperties(SSL *ssl, bool is_resume, |
| const TestConfig *config) { |
| if (!CheckAuthProperties(ssl, is_resume, config)) { |
| return false; |
| } |
| |
| if (SSL_get_current_cipher(ssl) == nullptr) { |
| fprintf(stderr, "null cipher after handshake\n"); |
| return false; |
| } |
| |
| if (config->expect_version != 0 && |
| SSL_version(ssl) != config->expect_version) { |
| fprintf(stderr, "want version %04x, got %04x\n", config->expect_version, |
| SSL_version(ssl)); |
| return false; |
| } |
| |
| bool expect_resume = |
| is_resume && (!config->expect_session_miss || SSL_in_early_data(ssl)); |
| if (!!SSL_session_reused(ssl) != expect_resume) { |
| fprintf(stderr, "session unexpectedly was%s reused\n", |
| SSL_session_reused(ssl) ? "" : " not"); |
| return false; |
| } |
| |
| bool expect_handshake_done = |
| (is_resume || !config->false_start) && !SSL_in_early_data(ssl); |
| if (expect_handshake_done != GetTestState(ssl)->handshake_done) { |
| fprintf(stderr, "handshake was%s completed\n", |
| GetTestState(ssl)->handshake_done ? "" : " not"); |
| return false; |
| } |
| |
| if (expect_handshake_done && !config->is_server) { |
| bool expect_new_session = |
| !config->expect_no_session && |
| (!SSL_session_reused(ssl) || config->expect_ticket_renewal) && |
| // Session tickets are sent post-handshake in TLS 1.3. |
| GetProtocolVersion(ssl) < TLS1_3_VERSION; |
| if (expect_new_session != GetTestState(ssl)->got_new_session) { |
| fprintf(stderr, |
| "new session was%s cached, but we expected the opposite\n", |
| GetTestState(ssl)->got_new_session ? "" : " not"); |
| return false; |
| } |
| } |
| |
| if (!is_resume) { |
| if (config->expect_session_id && !GetTestState(ssl)->got_new_session) { |
| fprintf(stderr, "session was not cached on the server.\n"); |
| return false; |
| } |
| if (config->expect_no_session_id && GetTestState(ssl)->got_new_session) { |
| fprintf(stderr, "session was unexpectedly cached on the server.\n"); |
| return false; |
| } |
| } |
| |
| // early_callback_called is updated in the handshaker, so we don't see it |
| // here. |
| if (!config->handoff && config->is_server && |
| !GetTestState(ssl)->early_callback_called) { |
| fprintf(stderr, "early callback not called\n"); |
| return false; |
| } |
| |
| if (!config->expected_server_name.empty()) { |
| const char *server_name = |
| SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name); |
| if (server_name == nullptr || |
| server_name != config->expected_server_name) { |
| fprintf(stderr, "servername mismatch (got %s; want %s)\n", |
| server_name, config->expected_server_name.c_str()); |
| return false; |
| } |
| } |
| |
| if (!config->expected_next_proto.empty()) { |
| const uint8_t *next_proto; |
| unsigned next_proto_len; |
| SSL_get0_next_proto_negotiated(ssl, &next_proto, &next_proto_len); |
| if (next_proto_len != config->expected_next_proto.size() || |
| OPENSSL_memcmp(next_proto, config->expected_next_proto.data(), |
| next_proto_len) != 0) { |
| fprintf(stderr, "negotiated next proto mismatch\n"); |
| return false; |
| } |
| } |
| |
| if (!config->is_server) { |
| const uint8_t *alpn_proto; |
| unsigned alpn_proto_len; |
| SSL_get0_alpn_selected(ssl, &alpn_proto, &alpn_proto_len); |
| if (alpn_proto_len != config->expected_alpn.size() || |
| OPENSSL_memcmp(alpn_proto, config->expected_alpn.data(), |
| alpn_proto_len) != 0) { |
| fprintf(stderr, "negotiated alpn proto mismatch\n"); |
| return false; |
| } |
| } |
| |
| if (!config->expected_quic_transport_params.empty()) { |
| const uint8_t *peer_params; |
| size_t peer_params_len; |
| SSL_get_peer_quic_transport_params(ssl, &peer_params, &peer_params_len); |
| if (peer_params_len != config->expected_quic_transport_params.size() || |
| OPENSSL_memcmp(peer_params, |
| config->expected_quic_transport_params.data(), |
| peer_params_len) != 0) { |
| fprintf(stderr, "QUIC transport params mismatch\n"); |
| return false; |
| } |
| } |
| |
| if (!config->expected_channel_id.empty()) { |
| uint8_t channel_id[64]; |
| if (!SSL_get_tls_channel_id(ssl, channel_id, sizeof(channel_id))) { |
| fprintf(stderr, "no channel id negotiated\n"); |
| return false; |
| } |
| if (config->expected_channel_id.size() != 64 || |
| OPENSSL_memcmp(config->expected_channel_id.data(), channel_id, 64) != |
| 0) { |
| fprintf(stderr, "channel id mismatch\n"); |
| return false; |
| } |
| } |
| |
| if (config->expected_token_binding_param != -1) { |
| if (!SSL_is_token_binding_negotiated(ssl)) { |
| fprintf(stderr, "no Token Binding negotiated\n"); |
| return false; |
| } |
| if (SSL_get_negotiated_token_binding_param(ssl) != |
| static_cast<uint8_t>(config->expected_token_binding_param)) { |
| fprintf(stderr, "Token Binding param mismatch\n"); |
| return false; |
| } |
| } |
| |
| if (config->expect_extended_master_secret && !SSL_get_extms_support(ssl)) { |
| fprintf(stderr, "No EMS for connection when expected\n"); |
| return false; |
| } |
| |
| if (config->expect_secure_renegotiation && |
| !SSL_get_secure_renegotiation_support(ssl)) { |
| fprintf(stderr, "No secure renegotiation for connection when expected\n"); |
| return false; |
| } |
| |
| if (config->expect_no_secure_renegotiation && |
| SSL_get_secure_renegotiation_support(ssl)) { |
| fprintf(stderr, |
| "Secure renegotiation unexpectedly negotiated for connection\n"); |
| return false; |
| } |
| |
| if (config->expect_peer_signature_algorithm != 0 && |
| config->expect_peer_signature_algorithm != |
| SSL_get_peer_signature_algorithm(ssl)) { |
| fprintf(stderr, "Peer signature algorithm was %04x, wanted %04x.\n", |
| SSL_get_peer_signature_algorithm(ssl), |
| config->expect_peer_signature_algorithm); |
| return false; |
| } |
| |
| if (config->expect_curve_id != 0) { |
| uint16_t curve_id = SSL_get_curve_id(ssl); |
| if (static_cast<uint16_t>(config->expect_curve_id) != curve_id) { |
| fprintf(stderr, "curve_id was %04x, wanted %04x\n", curve_id, |
| static_cast<uint16_t>(config->expect_curve_id)); |
| return false; |
| } |
| } |
| |
| uint16_t cipher_id = |
| static_cast<uint16_t>(SSL_CIPHER_get_id(SSL_get_current_cipher(ssl))); |
| if (config->expect_cipher_aes != 0 && |
| EVP_has_aes_hardware() && |
| static_cast<uint16_t>(config->expect_cipher_aes) != cipher_id) { |
| fprintf(stderr, "Cipher ID was %04x, wanted %04x (has AES hardware)\n", |
| cipher_id, static_cast<uint16_t>(config->expect_cipher_aes)); |
| return false; |
| } |
| |
| if (config->expect_cipher_no_aes != 0 && |
| !EVP_has_aes_hardware() && |
| static_cast<uint16_t>(config->expect_cipher_no_aes) != cipher_id) { |
| fprintf(stderr, "Cipher ID was %04x, wanted %04x (no AES hardware)\n", |
| cipher_id, static_cast<uint16_t>(config->expect_cipher_no_aes)); |
| return false; |
| } |
| |
| // The early data status is only applicable after the handshake is confirmed. |
| if (!SSL_in_early_data(ssl)) { |
| if ((config->expect_accept_early_data && !SSL_early_data_accepted(ssl)) || |
| (config->expect_reject_early_data && SSL_early_data_accepted(ssl))) { |
| fprintf(stderr, |
| "Early data was%s accepted, but we expected the opposite\n", |
| SSL_early_data_accepted(ssl) ? "" : " not"); |
| return false; |
| } |
| |
| const char *early_data_reason = |
| EarlyDataReasonToString(SSL_get_early_data_reason(ssl)); |
| if (!config->expect_early_data_reason.empty() && |
| config->expect_early_data_reason != early_data_reason) { |
| fprintf(stderr, "Early data reason was \"%s\", expected \"%s\"\n", |
| early_data_reason, config->expect_early_data_reason.c_str()); |
| return false; |
| } |
| } |
| |
| if (!config->psk.empty()) { |
| if (SSL_get_peer_cert_chain(ssl) != nullptr) { |
| fprintf(stderr, "Received peer certificate on a PSK cipher.\n"); |
| return false; |
| } |
| } else if (!config->is_server || config->require_any_client_certificate) { |
| if (SSL_get_peer_cert_chain(ssl) == nullptr) { |
| fprintf(stderr, "Received no peer certificate but expected one.\n"); |
| return false; |
| } |
| } |
| |
| if (is_resume && config->expect_ticket_age_skew != 0 && |
| SSL_get_ticket_age_skew(ssl) != config->expect_ticket_age_skew) { |
| fprintf(stderr, "Ticket age skew was %" PRId32 ", wanted %d\n", |
| SSL_get_ticket_age_skew(ssl), config->expect_ticket_age_skew); |
| return false; |
| } |
| |
| if (config->expect_tls13_downgrade != !!SSL_is_tls13_downgrade(ssl)) { |
| fprintf(stderr, "Got %s downgrade signal, but wanted the opposite.\n", |
| SSL_is_tls13_downgrade(ssl) ? "" : "no "); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static bool DoExchange(bssl::UniquePtr<SSL_SESSION> *out_session, |
| bssl::UniquePtr<SSL> *ssl_uniqueptr, |
| const TestConfig *config, bool is_resume, bool is_retry, |
| SettingsWriter *writer); |
| |
| // DoConnection tests an SSL connection against the peer. On success, it returns |
| // true and sets |*out_session| to the negotiated SSL session. If the test is a |
| // resumption attempt, |is_resume| is true and |session| is the session from the |
| // previous exchange. |
| static bool DoConnection(bssl::UniquePtr<SSL_SESSION> *out_session, |
| SSL_CTX *ssl_ctx, const TestConfig *config, |
| const TestConfig *retry_config, bool is_resume, |
| SSL_SESSION *session, SettingsWriter *writer) { |
| bssl::UniquePtr<SSL> ssl = config->NewSSL( |
| ssl_ctx, session, is_resume, std::unique_ptr<TestState>(new TestState)); |
| if (!ssl) { |
| return false; |
| } |
| if (config->is_server) { |
| SSL_set_accept_state(ssl.get()); |
| } else { |
| SSL_set_connect_state(ssl.get()); |
| } |
| |
| int sock = Connect(config->port); |
| if (sock == -1) { |
| return false; |
| } |
| SocketCloser closer(sock); |
| |
| bssl::UniquePtr<BIO> bio(BIO_new_socket(sock, BIO_NOCLOSE)); |
| if (!bio) { |
| return false; |
| } |
| if (config->is_dtls) { |
| bssl::UniquePtr<BIO> packeted = PacketedBioCreate(GetClock()); |
| if (!packeted) { |
| return false; |
| } |
| GetTestState(ssl.get())->packeted_bio = packeted.get(); |
| BIO_push(packeted.get(), bio.release()); |
| bio = std::move(packeted); |
| } |
| if (config->async) { |
| bssl::UniquePtr<BIO> async_scoped = |
| config->is_dtls ? AsyncBioCreateDatagram() : AsyncBioCreate(); |
| if (!async_scoped) { |
| return false; |
| } |
| BIO_push(async_scoped.get(), bio.release()); |
| GetTestState(ssl.get())->async_bio = async_scoped.get(); |
| bio = std::move(async_scoped); |
| } |
| SSL_set_bio(ssl.get(), bio.get(), bio.get()); |
| bio.release(); // SSL_set_bio takes ownership. |
| |
| bool ret = DoExchange(out_session, &ssl, config, is_resume, false, writer); |
| if (!config->is_server && is_resume && config->expect_reject_early_data) { |
| // We must have failed due to an early data rejection. |
| if (ret) { |
| fprintf(stderr, "0-RTT exchange unexpected succeeded.\n"); |
| return false; |
| } |
| if (SSL_get_error(ssl.get(), -1) != SSL_ERROR_EARLY_DATA_REJECTED) { |
| fprintf(stderr, |
| "SSL_get_error did not signal SSL_ERROR_EARLY_DATA_REJECTED.\n"); |
| return false; |
| } |
| |
| // Before reseting, early state should still be available. |
| if (!SSL_in_early_data(ssl.get()) || |
| !CheckHandshakeProperties(ssl.get(), is_resume, config)) { |
| fprintf(stderr, "SSL_in_early_data returned false before reset.\n"); |
| return false; |
| } |
| |
| // Client pre- and post-0-RTT reject states are considered logically |
| // different connections with different test expections. Check that the test |
| // did not mistakenly configure reason expectations on the wrong one. |
| if (!config->expect_early_data_reason.empty()) { |
| fprintf(stderr, |
| "Test error: client reject -expect-early-data-reason flags " |
| "should be configured with -on-retry, not -on-resume.\n"); |
| return false; |
| } |
| |
| // Reset the connection and try again at 1-RTT. |
| SSL_reset_early_data_reject(ssl.get()); |
| GetTestState(ssl.get())->cert_verified = false; |
| |
| // After reseting, the socket should report it is no longer in an early data |
| // state. |
| if (SSL_in_early_data(ssl.get())) { |
| fprintf(stderr, "SSL_in_early_data returned true after reset.\n"); |
| return false; |
| } |
| |
| if (!SetTestConfig(ssl.get(), retry_config)) { |
| return false; |
| } |
| |
| assert(!config->handoff); |
| ret = DoExchange(out_session, &ssl, retry_config, is_resume, true, writer); |
| } |
| |
| if (!ret) { |
| return false; |
| } |
| |
| if (!GetTestState(ssl.get())->msg_callback_ok) { |
| return false; |
| } |
| |
| if (!config->expect_msg_callback.empty() && |
| GetTestState(ssl.get())->msg_callback_text != |
| config->expect_msg_callback) { |
| fprintf(stderr, "Bad message callback trace. Wanted:\n%s\nGot:\n%s\n", |
| config->expect_msg_callback.c_str(), |
| GetTestState(ssl.get())->msg_callback_text.c_str()); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static bool DoExchange(bssl::UniquePtr<SSL_SESSION> *out_session, |
| bssl::UniquePtr<SSL> *ssl_uniqueptr, |
| const TestConfig *config, bool is_resume, bool is_retry, |
| SettingsWriter *writer) { |
| int ret; |
| SSL *ssl = ssl_uniqueptr->get(); |
| SSL_CTX *session_ctx = SSL_get_SSL_CTX(ssl); |
| |
| if (!config->implicit_handshake) { |
| if (config->handoff) { |
| #if defined(HANDSHAKER_SUPPORTED) |
| if (!DoSplitHandshake(ssl_uniqueptr, writer, is_resume)) { |
| return false; |
| } |
| ssl = ssl_uniqueptr->get(); |
| #else |
| fprintf(stderr, "The external handshaker can only be used on Linux\n"); |
| return false; |
| #endif |
| } |
| |
| do { |
| ret = CheckIdempotentError("SSL_do_handshake", ssl, [&]() -> int { |
| return SSL_do_handshake(ssl); |
| }); |
| } while (config->async && RetryAsync(ssl, ret)); |
| |
| if (config->forbid_renegotiation_after_handshake) { |
| SSL_set_renegotiate_mode(ssl, ssl_renegotiate_never); |
| } |
| |
| if (ret != 1 || !CheckHandshakeProperties(ssl, is_resume, config)) { |
| return false; |
| } |
| |
| CopySessions(session_ctx, SSL_get_SSL_CTX(ssl)); |
| |
| if (is_resume && !is_retry && !config->is_server && |
| config->expect_no_offer_early_data && SSL_in_early_data(ssl)) { |
| fprintf(stderr, "Client unexpectedly offered early data.\n"); |
| return false; |
| } |
| |
| if (config->handshake_twice) { |
| do { |
| ret = SSL_do_handshake(ssl); |
| } while (config->async && RetryAsync(ssl, ret)); |
| if (ret != 1) { |
| return false; |
| } |
| } |
| |
| // Skip the |config->async| logic as this should be a no-op. |
| if (config->no_op_extra_handshake && |
| SSL_do_handshake(ssl) != 1) { |
| fprintf(stderr, "Extra SSL_do_handshake was not a no-op.\n"); |
| return false; |
| } |
| |
| // Reset the state to assert later that the callback isn't called in |
| // renegotations. |
| GetTestState(ssl)->got_new_session = false; |
| } |
| |
| if (config->export_early_keying_material > 0) { |
| std::vector<uint8_t> result( |
| static_cast<size_t>(config->export_early_keying_material)); |
| if (!SSL_export_early_keying_material( |
| ssl, result.data(), result.size(), config->export_label.data(), |
| config->export_label.size(), |
| reinterpret_cast<const uint8_t *>(config->export_context.data()), |
| config->export_context.size())) { |
| fprintf(stderr, "failed to export keying material\n"); |
| return false; |
| } |
| if (WriteAll(ssl, result.data(), result.size()) < 0) { |
| return false; |
| } |
| } |
| |
| if (config->export_keying_material > 0) { |
| std::vector<uint8_t> result( |
| static_cast<size_t>(config->export_keying_material)); |
| if (!SSL_export_keying_material( |
| ssl, result.data(), result.size(), config->export_label.data(), |
| config->export_label.size(), |
| reinterpret_cast<const uint8_t *>(config->export_context.data()), |
| config->export_context.size(), config->use_export_context)) { |
| fprintf(stderr, "failed to export keying material\n"); |
| return false; |
| } |
| if (WriteAll(ssl, result.data(), result.size()) < 0) { |
| return false; |
| } |
| } |
| |
| if (config->export_traffic_secrets) { |
| bssl::Span<const uint8_t> read_secret, write_secret; |
| if (!SSL_get_traffic_secrets(ssl, &read_secret, &write_secret)) { |
| fprintf(stderr, "failed to export traffic secrets\n"); |
| return false; |
| } |
| |
| assert(read_secret.size() <= 0xffff); |
| assert(write_secret.size() == read_secret.size()); |
| const uint16_t secret_len = read_secret.size(); |
| if (WriteAll(ssl, &secret_len, sizeof(secret_len)) < 0 || |
| WriteAll(ssl, read_secret.data(), read_secret.size()) < 0 || |
| WriteAll(ssl, write_secret.data(), write_secret.size()) < 0) { |
| return false; |
| } |
| } |
| |
| if (config->tls_unique) { |
| uint8_t tls_unique[16]; |
| size_t tls_unique_len; |
| if (!SSL_get_tls_unique(ssl, tls_unique, &tls_unique_len, |
| sizeof(tls_unique))) { |
| fprintf(stderr, "failed to get tls-unique\n"); |
| return false; |
| } |
| |
| if (tls_unique_len != 12) { |
| fprintf(stderr, "expected 12 bytes of tls-unique but got %u", |
| static_cast<unsigned>(tls_unique_len)); |
| return false; |
| } |
| |
| if (WriteAll(ssl, tls_unique, tls_unique_len) < 0) { |
| return false; |
| } |
| } |
| |
| if (config->send_alert) { |
| if (DoSendFatalAlert(ssl, SSL_AD_DECOMPRESSION_FAILURE) < 0) { |
| return false; |
| } |
| return true; |
| } |
| |
| if (config->write_different_record_sizes) { |
| if (config->is_dtls) { |
| fprintf(stderr, "write_different_record_sizes not supported for DTLS\n"); |
| return false; |
| } |
| // This mode writes a number of different record sizes in an attempt to |
| // trip up the CBC record splitting code. |
| static const size_t kBufLen = 32769; |
| std::unique_ptr<uint8_t[]> buf(new uint8_t[kBufLen]); |
| OPENSSL_memset(buf.get(), 0x42, kBufLen); |
| static const size_t kRecordSizes[] = { |
| 0, 1, 255, 256, 257, 16383, 16384, 16385, 32767, 32768, 32769}; |
| for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(kRecordSizes); i++) { |
| const size_t len = kRecordSizes[i]; |
| if (len > kBufLen) { |
| fprintf(stderr, "Bad kRecordSizes value.\n"); |
| return false; |
| } |
| if (WriteAll(ssl, buf.get(), len) < 0) { |
| return false; |
| } |
| } |
| } else { |
| static const char kInitialWrite[] = "hello"; |
| bool pending_initial_write = false; |
| if (config->read_with_unfinished_write) { |
| if (!config->async) { |
| fprintf(stderr, "-read-with-unfinished-write requires -async.\n"); |
| return false; |
| } |
| |
| // Let only one byte of the record through. |
| AsyncBioAllowWrite(GetTestState(ssl)->async_bio, 1); |
| int write_ret = |
| SSL_write(ssl, kInitialWrite, strlen(kInitialWrite)); |
| if (SSL_get_error(ssl, write_ret) != SSL_ERROR_WANT_WRITE) { |
| fprintf(stderr, "Failed to leave unfinished write.\n"); |
| return false; |
| } |
| pending_initial_write = true; |
| } else if (config->shim_writes_first) { |
| if (WriteAll(ssl, kInitialWrite, strlen(kInitialWrite)) < 0) { |
| return false; |
| } |
| } |
| if (!config->shim_shuts_down) { |
| for (;;) { |
| // Read only 512 bytes at a time in TLS to ensure records may be |
| // returned in multiple reads. |
| size_t read_size = config->is_dtls ? 16384 : 512; |
| if (config->read_size > 0) { |
| read_size = config->read_size; |
| } |
| std::unique_ptr<uint8_t[]> buf(new uint8_t[read_size]); |
| |
| int n = DoRead(ssl, buf.get(), read_size); |
| int err = SSL_get_error(ssl, n); |
| if (err == SSL_ERROR_ZERO_RETURN || |
| (n == 0 && err == SSL_ERROR_SYSCALL)) { |
| if (n != 0) { |
| fprintf(stderr, "Invalid SSL_get_error output\n"); |
| return false; |
| } |
| // Stop on either clean or unclean shutdown. |
| break; |
| } else if (err != SSL_ERROR_NONE) { |
| if (n > 0) { |
| fprintf(stderr, "Invalid SSL_get_error output\n"); |
| return false; |
| } |
| return false; |
| } |
| // Successfully read data. |
| if (n <= 0) { |
| fprintf(stderr, "Invalid SSL_get_error output\n"); |
| return false; |
| } |
| |
| if (!config->is_server && is_resume && !is_retry && |
| config->expect_reject_early_data) { |
| fprintf(stderr, |
| "Unexpectedly received data instead of 0-RTT reject.\n"); |
| return false; |
| } |
| |
| // After a successful read, with or without False Start, the handshake |
| // must be complete unless we are doing early data. |
| if (!GetTestState(ssl)->handshake_done && |
| !SSL_early_data_accepted(ssl)) { |
| fprintf(stderr, "handshake was not completed after SSL_read\n"); |
| return false; |
| } |
| |
| // Clear the initial write, if unfinished. |
| if (pending_initial_write) { |
| if (WriteAll(ssl, kInitialWrite, strlen(kInitialWrite)) < 0) { |
| return false; |
| } |
| pending_initial_write = false; |
| } |
| |
| if (config->key_update && |
| !SSL_key_update(ssl, SSL_KEY_UPDATE_NOT_REQUESTED)) { |
| fprintf(stderr, "SSL_key_update failed.\n"); |
| return false; |
| } |
| |
| for (int i = 0; i < n; i++) { |
| buf[i] ^= 0xff; |
| } |
| if (WriteAll(ssl, buf.get(), n) < 0) { |
| return false; |
| } |
| } |
| } |
| } |
| |
| if (!config->is_server && !config->false_start && |
| !config->implicit_handshake && |
| // Session tickets are sent post-handshake in TLS 1.3. |
| GetProtocolVersion(ssl) < TLS1_3_VERSION && |
| GetTestState(ssl)->got_new_session) { |
| fprintf(stderr, "new session was established after the handshake\n"); |
| return false; |
| } |
| |
| if (GetProtocolVersion(ssl) >= TLS1_3_VERSION && !config->is_server) { |
| bool expect_new_session = |
| !config->expect_no_session && !config->shim_shuts_down; |
| if (expect_new_session != GetTestState(ssl)->got_new_session) { |
| fprintf(stderr, |
| "new session was%s cached, but we expected the opposite\n", |
| GetTestState(ssl)->got_new_session ? "" : " not"); |
| return false; |
| } |
| |
| if (expect_new_session) { |
| bool got_early_data = |
| GetTestState(ssl)->new_session->ticket_max_early_data != 0; |
| if (config->expect_ticket_supports_early_data != got_early_data) { |
| fprintf(stderr, |
| "new session did%s support early data, but we expected the " |
| "opposite\n", |
| got_early_data ? "" : " not"); |
| return false; |
| } |
| } |
| } |
| |
| if (out_session) { |
| *out_session = std::move(GetTestState(ssl)->new_session); |
| } |
| |
| ret = DoShutdown(ssl); |
| |
| if (config->shim_shuts_down && config->check_close_notify) { |
| // We initiate shutdown, so |SSL_shutdown| will return in two stages. First |
| // it returns zero when our close_notify is sent, then one when the peer's |
| // is received. |
| if (ret != 0) { |
| fprintf(stderr, "Unexpected SSL_shutdown result: %d != 0\n", ret); |
| return false; |
| } |
| ret = DoShutdown(ssl); |
| } |
| |
| if (ret != 1) { |
| fprintf(stderr, "Unexpected SSL_shutdown result: %d != 1\n", ret); |
| return false; |
| } |
| |
| if (SSL_total_renegotiations(ssl) > 0) { |
| if (!SSL_get_session(ssl)->not_resumable) { |
| fprintf(stderr, |
| "Renegotiations should never produce resumable sessions.\n"); |
| return false; |
| } |
| |
| if (SSL_session_reused(ssl)) { |
| fprintf(stderr, "Renegotiations should never resume sessions.\n"); |
| return false; |
| } |
| |
| // Re-check authentication properties after a renegotiation. The reported |
| // values should remain unchanged even if the server sent different SCT |
| // lists. |
| if (!CheckAuthProperties(ssl, is_resume, config)) { |
| return false; |
| } |
| } |
| |
| if (SSL_total_renegotiations(ssl) != config->expect_total_renegotiations) { |
| fprintf(stderr, "Expected %d renegotiations, got %d\n", |
| config->expect_total_renegotiations, SSL_total_renegotiations(ssl)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| class StderrDelimiter { |
| public: |
| ~StderrDelimiter() { fprintf(stderr, "--- DONE ---\n"); } |
| }; |
| |
| int main(int argc, char **argv) { |
| // To distinguish ASan's output from ours, add a trailing message to stderr. |
| // Anything following this line will be considered an error. |
| StderrDelimiter delimiter; |
| |
| #if defined(OPENSSL_WINDOWS) |
| // Initialize Winsock. |
| WORD wsa_version = MAKEWORD(2, 2); |
| WSADATA wsa_data; |
| int wsa_err = WSAStartup(wsa_version, &wsa_data); |
| if (wsa_err != 0) { |
| fprintf(stderr, "WSAStartup failed: %d\n", wsa_err); |
| return 1; |
| } |
| if (wsa_data.wVersion != wsa_version) { |
| fprintf(stderr, "Didn't get expected version: %x\n", wsa_data.wVersion); |
| return 1; |
| } |
| #else |
| signal(SIGPIPE, SIG_IGN); |
| #endif |
| |
| CRYPTO_library_init(); |
| |
| TestConfig initial_config, resume_config, retry_config; |
| if (!ParseConfig(argc - 1, argv + 1, &initial_config, &resume_config, |
| &retry_config)) { |
| return Usage(argv[0]); |
| } |
| |
| if (initial_config.is_handshaker_supported) { |
| #if defined(HANDSHAKER_SUPPORTED) |
| printf("Yes\n"); |
| #else |
| printf("No\n"); |
| #endif |
| return 0; |
| } |
| |
| bssl::UniquePtr<SSL_CTX> ssl_ctx; |
| |
| bssl::UniquePtr<SSL_SESSION> session; |
| for (int i = 0; i < initial_config.resume_count + 1; i++) { |
| bool is_resume = i > 0; |
| TestConfig *config = is_resume ? &resume_config : &initial_config; |
| ssl_ctx = config->SetupCtx(ssl_ctx.get()); |
| if (!ssl_ctx) { |
| ERR_print_errors_fp(stderr); |
| return 1; |
| } |
| |
| if (is_resume && !initial_config.is_server && !session) { |
| fprintf(stderr, "No session to offer.\n"); |
| return 1; |
| } |
| |
| bssl::UniquePtr<SSL_SESSION> offer_session = std::move(session); |
| SettingsWriter writer; |
| if (!writer.Init(i, config, offer_session.get())) { |
| fprintf(stderr, "Error writing settings.\n"); |
| return 1; |
| } |
| bool ok = DoConnection(&session, ssl_ctx.get(), config, &retry_config, |
| is_resume, offer_session.get(), &writer); |
| if (!writer.Commit()) { |
| fprintf(stderr, "Error writing settings.\n"); |
| return 1; |
| } |
| if (!ok) { |
| fprintf(stderr, "Connection %d failed.\n", i + 1); |
| ERR_print_errors_fp(stderr); |
| return 1; |
| } |
| |
| if (config->resumption_delay != 0) { |
| AdvanceClock(config->resumption_delay); |
| } |
| } |
| |
| return 0; |
| } |
