diff options
Diffstat (limited to 'test/ossl_shim/ossl_shim.cc')
| -rw-r--r-- | test/ossl_shim/ossl_shim.cc | 1312 |
1 files changed, 0 insertions, 1312 deletions
diff --git a/test/ossl_shim/ossl_shim.cc b/test/ossl_shim/ossl_shim.cc deleted file mode 100644 index 7ea8050ae7..0000000000 --- a/test/ossl_shim/ossl_shim.cc +++ /dev/null @@ -1,1312 +0,0 @@ -/* - * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved. - * - * Licensed under the Apache License 2.0 (the "License"). You may not use - * this file except in compliance with the License. You can obtain a copy - * in the file LICENSE in the source distribution or at - * https://www.openssl.org/source/license.html - */ - -#if !defined(__STDC_FORMAT_MACROS) -#define __STDC_FORMAT_MACROS -#endif - -#include "packeted_bio.h" -#include <openssl/e_os2.h> - -#if !defined(OPENSSL_SYS_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 <openssl/bio.h> -#include <openssl/buffer.h> -#include <openssl/bn.h> -#include <openssl/core_names.h> -#include <openssl/crypto.h> -#include <openssl/dh.h> -#include <openssl/err.h> -#include <openssl/evp.h> -#include <openssl/hmac.h> -#include <openssl/objects.h> -#include <openssl/rand.h> -#include <openssl/ssl.h> -#include <openssl/x509.h> - -#include <memory> -#include <string> -#include <vector> - -#include "async_bio.h" -#include "test_config.h" - -namespace bssl { - -#if !defined(OPENSSL_SYS_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; -} - -struct TestState { - // async_bio is async BIO which pauses reads and writes. - BIO *async_bio = nullptr; - // packeted_bio is the packeted BIO which simulates read timeouts. - BIO *packeted_bio = nullptr; - bool cert_ready = false; - bool handshake_done = false; - // private_key is the underlying private key used when testing custom keys. - bssl::UniquePtr<EVP_PKEY> private_key; - bool got_new_session = false; - bssl::UniquePtr<SSL_SESSION> new_session; - bool ticket_decrypt_done = false; - bool alpn_select_done = false; -}; - -static void TestStateExFree(void *parent, void *ptr, CRYPTO_EX_DATA *ad, - int index, long argl, void *argp) { - delete ((TestState *)ptr); -} - -static int g_config_index = 0; -static int g_state_index = 0; - -static bool SetTestConfig(SSL *ssl, const TestConfig *config) { - return SSL_set_ex_data(ssl, g_config_index, (void *)config) == 1; -} - -static const TestConfig *GetTestConfig(const SSL *ssl) { - return (const TestConfig *)SSL_get_ex_data(ssl, g_config_index); -} - -static bool SetTestState(SSL *ssl, std::unique_ptr<TestState> state) { - // |SSL_set_ex_data| takes ownership of |state| only on success. - if (SSL_set_ex_data(ssl, g_state_index, state.get()) == 1) { - state.release(); - return true; - } - return false; -} - -static TestState *GetTestState(const SSL *ssl) { - return (TestState *)SSL_get_ex_data(ssl, g_state_index); -} - -static bssl::UniquePtr<X509> LoadCertificate(const std::string &file) { - bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_file())); - if (!bio || !BIO_read_filename(bio.get(), file.c_str())) { - return nullptr; - } - return bssl::UniquePtr<X509>(PEM_read_bio_X509(bio.get(), NULL, NULL, NULL)); -} - -static bssl::UniquePtr<EVP_PKEY> LoadPrivateKey(const std::string &file) { - bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_file())); - if (!bio || !BIO_read_filename(bio.get(), file.c_str())) { - return nullptr; - } - return bssl::UniquePtr<EVP_PKEY>( - PEM_read_bio_PrivateKey(bio.get(), NULL, NULL, NULL)); -} - -template<typename T> -struct Free { - void operator()(T *buf) { - free(buf); - } -}; - -static bool GetCertificate(SSL *ssl, bssl::UniquePtr<X509> *out_x509, - bssl::UniquePtr<EVP_PKEY> *out_pkey) { - const TestConfig *config = GetTestConfig(ssl); - - if (!config->key_file.empty()) { - *out_pkey = LoadPrivateKey(config->key_file.c_str()); - if (!*out_pkey) { - return false; - } - } - if (!config->cert_file.empty()) { - *out_x509 = LoadCertificate(config->cert_file.c_str()); - if (!*out_x509) { - return false; - } - } - return true; -} - -static bool InstallCertificate(SSL *ssl) { - bssl::UniquePtr<X509> x509; - bssl::UniquePtr<EVP_PKEY> pkey; - if (!GetCertificate(ssl, &x509, &pkey)) { - return false; - } - - if (pkey && !SSL_use_PrivateKey(ssl, pkey.get())) { - return false; - } - - if (x509 && !SSL_use_certificate(ssl, x509.get())) { - return false; - } - - return true; -} - -static int ClientCertCallback(SSL *ssl, X509 **out_x509, EVP_PKEY **out_pkey) { - if (GetTestConfig(ssl)->async && !GetTestState(ssl)->cert_ready) { - return -1; - } - - bssl::UniquePtr<X509> x509; - bssl::UniquePtr<EVP_PKEY> pkey; - if (!GetCertificate(ssl, &x509, &pkey)) { - return -1; - } - - // Return zero for no certificate. - if (!x509) { - return 0; - } - - // Asynchronous private keys are not supported with client_cert_cb. - *out_x509 = x509.release(); - *out_pkey = pkey.release(); - return 1; -} - -static int VerifySucceed(X509_STORE_CTX *store_ctx, void *arg) { - return 1; -} - -static int VerifyFail(X509_STORE_CTX *store_ctx, void *arg) { - X509_STORE_CTX_set_error(store_ctx, X509_V_ERR_APPLICATION_VERIFICATION); - return 0; -} - -static int NextProtosAdvertisedCallback(SSL *ssl, const uint8_t **out, - unsigned int *out_len, void *arg) { - const TestConfig *config = GetTestConfig(ssl); - if (config->advertise_npn.empty()) { - return SSL_TLSEXT_ERR_NOACK; - } - - *out = (const uint8_t*)config->advertise_npn.data(); - *out_len = config->advertise_npn.size(); - return SSL_TLSEXT_ERR_OK; -} - -static int NextProtoSelectCallback(SSL* ssl, uint8_t** out, uint8_t* outlen, - const uint8_t* in, unsigned inlen, void* arg) { - const TestConfig *config = GetTestConfig(ssl); - if (config->select_next_proto.empty()) { - return SSL_TLSEXT_ERR_NOACK; - } - - *out = (uint8_t*)config->select_next_proto.data(); - *outlen = config->select_next_proto.size(); - return SSL_TLSEXT_ERR_OK; -} - -static int AlpnSelectCallback(SSL* ssl, const uint8_t** out, uint8_t* outlen, - const uint8_t* in, unsigned inlen, void* arg) { - if (GetTestState(ssl)->alpn_select_done) { - fprintf(stderr, "AlpnSelectCallback called after completion.\n"); - exit(1); - } - - GetTestState(ssl)->alpn_select_done = true; - - const TestConfig *config = GetTestConfig(ssl); - if (config->decline_alpn) { - return SSL_TLSEXT_ERR_NOACK; - } - - if (!config->expected_advertised_alpn.empty() && - (config->expected_advertised_alpn.size() != inlen || - memcmp(config->expected_advertised_alpn.data(), - in, inlen) != 0)) { - fprintf(stderr, "bad ALPN select callback inputs\n"); - exit(1); - } - - *out = (const uint8_t*)config->select_alpn.data(); - *outlen = config->select_alpn.size(); - return SSL_TLSEXT_ERR_OK; -} - -static unsigned PskClientCallback(SSL *ssl, const char *hint, - char *out_identity, - unsigned max_identity_len, - uint8_t *out_psk, unsigned max_psk_len) { - const TestConfig *config = GetTestConfig(ssl); - - if (config->psk_identity.empty()) { - if (hint != nullptr) { - fprintf(stderr, "Server PSK hint was non-null.\n"); - return 0; - } - } else if (hint == nullptr || - strcmp(hint, config->psk_identity.c_str()) != 0) { - fprintf(stderr, "Server PSK hint did not match.\n"); - return 0; - } - - // Account for the trailing '\0' for the identity. - if (config->psk_identity.size() >= max_identity_len || - config->psk.size() > max_psk_len) { - fprintf(stderr, "PSK buffers too small\n"); - return 0; - } - - OPENSSL_strlcpy(out_identity, config->psk_identity.c_str(), - max_identity_len); - memcpy(out_psk, config->psk.data(), config->psk.size()); - return config->psk.size(); -} - -static unsigned PskServerCallback(SSL *ssl, const char *identity, - uint8_t *out_psk, unsigned max_psk_len) { - const TestConfig *config = GetTestConfig(ssl); - - if (strcmp(identity, config->psk_identity.c_str()) != 0) { - fprintf(stderr, "Client PSK identity did not match.\n"); - return 0; - } - - if (config->psk.size() > max_psk_len) { - fprintf(stderr, "PSK buffers too small\n"); - return 0; - } - - memcpy(out_psk, config->psk.data(), config->psk.size()); - return config->psk.size(); -} - -static int CertCallback(SSL *ssl, void *arg) { - const TestConfig *config = GetTestConfig(ssl); - - // Check the CertificateRequest metadata is as expected. - // - // TODO(davidben): Test |SSL_get_client_CA_list|. - if (!SSL_is_server(ssl) && - !config->expected_certificate_types.empty()) { - const uint8_t *certificate_types; - size_t certificate_types_len = - SSL_get0_certificate_types(ssl, &certificate_types); - if (certificate_types_len != config->expected_certificate_types.size() || - memcmp(certificate_types, - config->expected_certificate_types.data(), - certificate_types_len) != 0) { - fprintf(stderr, "certificate types mismatch\n"); - return 0; - } - } - - // The certificate will be installed via other means. - if (!config->async || - config->use_old_client_cert_callback) { - return 1; - } - - if (!GetTestState(ssl)->cert_ready) { - return -1; - } - if (!InstallCertificate(ssl)) { - return 0; - } - return 1; -} - -static void InfoCallback(const SSL *ssl, int type, int val) { - if (type == SSL_CB_HANDSHAKE_DONE) { - if (GetTestConfig(ssl)->handshake_never_done) { - fprintf(stderr, "Handshake unexpectedly completed.\n"); - // Abort before any expected error code is printed, to ensure the overall - // test fails. - abort(); - } - GetTestState(ssl)->handshake_done = true; - - // Callbacks may be called again on a new handshake. - GetTestState(ssl)->ticket_decrypt_done = false; - GetTestState(ssl)->alpn_select_done = false; - } -} - -static int NewSessionCallback(SSL *ssl, SSL_SESSION *session) { - GetTestState(ssl)->got_new_session = true; - GetTestState(ssl)->new_session.reset(session); - return 1; -} - -static int TicketKeyCallback(SSL *ssl, uint8_t *key_name, uint8_t *iv, - EVP_CIPHER_CTX *ctx, EVP_MAC_CTX *hmac_ctx, - int encrypt) { - OSSL_PARAM params[2], *p = params; - - if (!encrypt) { - if (GetTestState(ssl)->ticket_decrypt_done) { - fprintf(stderr, "TicketKeyCallback called after completion.\n"); - return -1; - } - - GetTestState(ssl)->ticket_decrypt_done = true; - } - - // This is just test code, so use the all-zeros key. - static const uint8_t kZeros[16] = {0}; - - if (encrypt) { - memcpy(key_name, kZeros, sizeof(kZeros)); - RAND_bytes(iv, 16); - } else if (memcmp(key_name, kZeros, 16) != 0) { - return 0; - } - - *p++ = OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_DIGEST, - const_cast<char *>("SHA256"), 0); - *p = OSSL_PARAM_construct_end(); - - if (!EVP_CipherInit_ex(ctx, EVP_aes_128_cbc(), NULL, kZeros, iv, encrypt) - || !EVP_MAC_init(hmac_ctx, kZeros, sizeof(kZeros), params)) { - return -1; - } - - if (!encrypt) { - return GetTestConfig(ssl)->renew_ticket ? 2 : 1; - } - return 1; -} - -// kCustomExtensionValue is the extension value that the custom extension -// callbacks will add. -static const uint16_t kCustomExtensionValue = 1234; -static void *const kCustomExtensionAddArg = - reinterpret_cast<void *>(kCustomExtensionValue); -static void *const kCustomExtensionParseArg = - reinterpret_cast<void *>(kCustomExtensionValue + 1); -static const char kCustomExtensionContents[] = "custom extension"; - -static int CustomExtensionAddCallback(SSL *ssl, unsigned extension_value, - const uint8_t **out, size_t *out_len, - int *out_alert_value, void *add_arg) { - if (extension_value != kCustomExtensionValue || - add_arg != kCustomExtensionAddArg) { - abort(); - } - - if (GetTestConfig(ssl)->custom_extension_skip) { - return 0; - } - if (GetTestConfig(ssl)->custom_extension_fail_add) { - return -1; - } - - *out = reinterpret_cast<const uint8_t*>(kCustomExtensionContents); - *out_len = sizeof(kCustomExtensionContents) - 1; - - return 1; -} - -static void CustomExtensionFreeCallback(SSL *ssl, unsigned extension_value, - const uint8_t *out, void *add_arg) { - if (extension_value != kCustomExtensionValue || - add_arg != kCustomExtensionAddArg || - out != reinterpret_cast<const uint8_t *>(kCustomExtensionContents)) { - abort(); - } -} - -static int CustomExtensionParseCallback(SSL *ssl, unsigned extension_value, - const uint8_t *contents, - size_t contents_len, - int *out_alert_value, void *parse_arg) { - if (extension_value != kCustomExtensionValue || - parse_arg != kCustomExtensionParseArg) { - abort(); - } - - if (contents_len != sizeof(kCustomExtensionContents) - 1 || - memcmp(contents, kCustomExtensionContents, contents_len) != 0) { - *out_alert_value = SSL_AD_DECODE_ERROR; - return 0; - } - - return 1; -} - -static int ServerNameCallback(SSL *ssl, int *out_alert, void *arg) { - // SNI must be accessible from the SNI callback. - const TestConfig *config = GetTestConfig(ssl); - const char *server_name = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name); - if (server_name == nullptr || - std::string(server_name) != config->expected_server_name) { - fprintf(stderr, "servername mismatch (got %s; want %s)\n", server_name, - config->expected_server_name.c_str()); - return SSL_TLSEXT_ERR_ALERT_FATAL; - } - - return SSL_TLSEXT_ERR_OK; -} - -// Connect returns a new socket connected to localhost on |port| or -1 on -// error. -static int Connect(uint16_t port) { - int sock = socket(AF_INET, 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_in sin; - memset(&sin, 0, sizeof(sin)); - sin.sin_family = AF_INET; - 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*>(&sin), - sizeof(sin)) != 0) { - PrintSocketError("connect"); - closesocket(sock); - return -1; - } - return sock; -} - -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_SYS_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_; -}; - -static bssl::UniquePtr<SSL_CTX> SetupCtx(const TestConfig *config) { - const char sess_id_ctx[] = "ossl_shim"; - bssl::UniquePtr<SSL_CTX> ssl_ctx(SSL_CTX_new( - config->is_dtls ? DTLS_method() : TLS_method())); - if (!ssl_ctx) { - return nullptr; - } - - SSL_CTX_set_security_level(ssl_ctx.get(), 0); -#if 0 - /* Disabled for now until we have some TLS1.3 support */ - // Enable TLS 1.3 for tests. - if (!config->is_dtls && - !SSL_CTX_set_max_proto_version(ssl_ctx.get(), TLS1_3_VERSION)) { - return nullptr; - } -#else - /* Ensure we don't negotiate TLSv1.3 until we can handle it */ - if (!config->is_dtls && - !SSL_CTX_set_max_proto_version(ssl_ctx.get(), TLS1_2_VERSION)) { - return nullptr; - } -#endif - - std::string cipher_list = "ALL"; - if (!config->cipher.empty()) { - cipher_list = config->cipher; - SSL_CTX_set_options(ssl_ctx.get(), SSL_OP_CIPHER_SERVER_PREFERENCE); - } - if (!SSL_CTX_set_cipher_list(ssl_ctx.get(), cipher_list.c_str())) { - return nullptr; - } - - DH *tmpdh; - - if (config->use_sparse_dh_prime) { - BIGNUM *p, *g; - p = BN_new(); - g = BN_new(); - tmpdh = DH_new(); - if (p == NULL || g == NULL || tmpdh == NULL) { - BN_free(p); - BN_free(g); - DH_free(tmpdh); - return nullptr; - } - // This prime number is 2^1024 + 643 – a value just above a power of two. - // Because of its form, values modulo it are essentially certain to be one - // byte shorter. This is used to test padding of these values. - if (BN_hex2bn( - &p, - "1000000000000000000000000000000000000000000000000000000000000000" - "0000000000000000000000000000000000000000000000000000000000000000" - "0000000000000000000000000000000000000000000000000000000000000000" - "0000000000000000000000000000000000000000000000000000000000000028" - "3") == 0 || - !BN_set_word(g, 2)) { - BN_free(p); - BN_free(g); - DH_free(tmpdh); - return nullptr; - } - DH_set0_pqg(tmpdh, p, NULL, g); - } else { - tmpdh = DH_get_2048_256(); - } - - bssl::UniquePtr<DH> dh(tmpdh); - - if (!dh || !SSL_CTX_set_tmp_dh(ssl_ctx.get(), dh.get())) { - return nullptr; - } - - SSL_CTX_set_session_cache_mode(ssl_ctx.get(), SSL_SESS_CACHE_BOTH); - - if (config->use_old_client_cert_callback) { - SSL_CTX_set_client_cert_cb(ssl_ctx.get(), ClientCertCallback); - } - - SSL_CTX_set_npn_advertised_cb( - ssl_ctx.get(), NextProtosAdvertisedCallback, NULL); - if (!config->select_next_proto.empty()) { - SSL_CTX_set_next_proto_select_cb(ssl_ctx.get(), NextProtoSelectCallback, - NULL); - } - - if (!config->select_alpn.empty() || config->decline_alpn) { - SSL_CTX_set_alpn_select_cb(ssl_ctx.get(), AlpnSelectCallback, NULL); - } - - SSL_CTX_set_info_callback(ssl_ctx.get(), InfoCallback); - SSL_CTX_sess_set_new_cb(ssl_ctx.get(), NewSessionCallback); - - if (config->use_ticket_callback) { - SSL_CTX_set_tlsext_ticket_key_evp_cb(ssl_ctx.get(), TicketKeyCallback); - } - - if (config->enable_client_custom_extension && - !SSL_CTX_add_client_custom_ext( - ssl_ctx.get(), kCustomExtensionValue, CustomExtensionAddCallback, - CustomExtensionFreeCallback, kCustomExtensionAddArg, - CustomExtensionParseCallback, kCustomExtensionParseArg)) { - return nullptr; - } - - if (config->enable_server_custom_extension && - !SSL_CTX_add_server_custom_ext( - ssl_ctx.get(), kCustomExtensionValue, CustomExtensionAddCallback, - CustomExtensionFreeCallback, kCustomExtensionAddArg, - CustomExtensionParseCallback, kCustomExtensionParseArg)) { - return nullptr; - } - - if (config->verify_fail) { - SSL_CTX_set_cert_verify_callback(ssl_ctx.get(), VerifyFail, NULL); - } else { - SSL_CTX_set_cert_verify_callback(ssl_ctx.get(), VerifySucceed, NULL); - } - - if (config->use_null_client_ca_list) { - SSL_CTX_set_client_CA_list(ssl_ctx.get(), nullptr); - } - - if (!SSL_CTX_set_session_id_context(ssl_ctx.get(), - (const unsigned char *)sess_id_ctx, - sizeof(sess_id_ctx) - 1)) - return nullptr; - - if (!config->expected_server_name.empty()) { - SSL_CTX_set_tlsext_servername_callback(ssl_ctx.get(), ServerNameCallback); - } - - return ssl_ctx; -} - -// RetryAsync is called after a failed operation on |ssl| with return code -// |ret|. If the operation should be retried, it simulates one asynchronous -// event and returns true. Otherwise it returns false. -static bool RetryAsync(SSL *ssl, int ret) { - // No error; don't retry. - if (ret >= 0) { - return false; - } - - TestState *test_state = GetTestState(ssl); - assert(GetTestConfig(ssl)->async); - - if (test_state->packeted_bio != nullptr && - PacketedBioAdvanceClock(test_state->packeted_bio)) { - // The DTLS retransmit logic silently ignores write failures. So the test - // may progress, allow writes through synchronously. - AsyncBioEnforceWriteQuota(test_state->async_bio, false); - int timeout_ret = DTLSv1_handle_timeout(ssl); - AsyncBioEnforceWriteQuota(test_state->async_bio, true); - - if (timeout_ret < 0) { - fprintf(stderr, "Error retransmitting.\n"); - return false; - } - return true; - } - - // See if we needed to read or write more. If so, allow one byte through on - // the appropriate end to maximally stress the state machine. - switch (SSL_get_error(ssl, ret)) { - case SSL_ERROR_WANT_READ: - AsyncBioAllowRead(test_state->async_bio, 1); - return true; - case SSL_ERROR_WANT_WRITE: - AsyncBioAllowWrite(test_state->async_bio, 1); - return true; - case SSL_ERROR_WANT_X509_LOOKUP: - test_state->cert_ready = true; - return true; - default: - return false; - } -} - -// 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 = 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); - } - } 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 || - 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 || - 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 uint8_t *in, size_t in_len) { - 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; -} - -static uint16_t GetProtocolVersion(const SSL *ssl) { - uint16_t version = SSL_version(ssl); - if (!SSL_is_dtls(ssl)) { - return version; - } - return 0x0201 + ~version; -} - -// 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 = GetTestConfig(ssl); - - if (SSL_get_current_cipher(ssl) == nullptr) { - fprintf(stderr, "null cipher after handshake\n"); - return false; - } - - if (is_resume && - (!!SSL_session_reused(ssl) == config->expect_session_miss)) { - fprintf(stderr, "session was%s reused\n", - SSL_session_reused(ssl) ? "" : " not"); - return false; - } - - if (!GetTestState(ssl)->handshake_done) { - fprintf(stderr, "handshake was not completed\n"); - return false; - } - - if (!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 (!config->expected_server_name.empty()) { - const char *server_name = - SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name); - if (server_name == nullptr || - std::string(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() || - memcmp(next_proto, config->expected_next_proto.data(), - next_proto_len) != 0) { - fprintf(stderr, "negotiated next proto mismatch\n"); - return false; - } - } - - if (!config->expected_alpn.empty()) { - 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() || - memcmp(alpn_proto, config->expected_alpn.data(), - alpn_proto_len) != 0) { - fprintf(stderr, "negotiated alpn proto mismatch\n"); - return false; - } - } - - if (config->expect_extended_master_secret) { - if (!SSL_get_extms_support(ssl)) { - fprintf(stderr, "No EMS for connection when expected"); - 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->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_get0_peer_certificate(ssl) == nullptr) { - fprintf(stderr, "Received no peer certificate but expected one.\n"); - return false; - } - } - - return true; -} - -// DoExchange runs a test SSL exchange 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 DoExchange(bssl::UniquePtr<SSL_SESSION> *out_session, - SSL_CTX *ssl_ctx, const TestConfig *config, - bool is_resume, SSL_SESSION *session) { - bssl::UniquePtr<SSL> ssl(SSL_new(ssl_ctx)); - if (!ssl) { - return false; - } - - if (!SetTestConfig(ssl.get(), config) || - !SetTestState(ssl.get(), std::unique_ptr<TestState>(new TestState))) { - return false; - } - - if (config->fallback_scsv && - !SSL_set_mode(ssl.get(), SSL_MODE_SEND_FALLBACK_SCSV)) { - return false; - } - // Install the certificate synchronously if nothing else will handle it. - if (!config->use_old_client_cert_callback && - !config->async && - !InstallCertificate(ssl.get())) { - return false; - } - SSL_set_cert_cb(ssl.get(), CertCallback, nullptr); - if (config->require_any_client_certificate) { - SSL_set_verify(ssl.get(), SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT, - NULL); - } - if (config->verify_peer) { - SSL_set_verify(ssl.get(), SSL_VERIFY_PEER, NULL); - } - if (config->partial_write) { - SSL_set_mode(ssl.get(), SSL_MODE_ENABLE_PARTIAL_WRITE); - } - if (config->no_tls13) { - SSL_set_options(ssl.get(), SSL_OP_NO_TLSv1_3); - } - if (config->no_tls12) { - SSL_set_options(ssl.get(), SSL_OP_NO_TLSv1_2); - } - if (config->no_tls11) { - SSL_set_options(ssl.get(), SSL_OP_NO_TLSv1_1); - } - if (config->no_tls1) { - SSL_set_options(ssl.get(), SSL_OP_NO_TLSv1); - } - if (config->no_ssl3) { - SSL_set_options(ssl.get(), SSL_OP_NO_SSLv3); - } - if (!config->host_name.empty() && - !SSL_set_tlsext_host_name(ssl.get(), config->host_name.c_str())) { - return false; - } - if (!config->advertise_alpn.empty() && - SSL_set_alpn_protos(ssl.get(), - (const uint8_t *)config->advertise_alpn.data(), - config->advertise_alpn.size()) != 0) { - return false; - } - if (!config->psk.empty()) { - SSL_set_psk_client_callback(ssl.get(), PskClientCallback); - SSL_set_psk_server_callback(ssl.get(), PskServerCallback); - } - if (!config->psk_identity.empty() && - !SSL_use_psk_identity_hint(ssl.get(), config->psk_identity.c_str())) { - return false; - } - if (!config->srtp_profiles.empty() && - SSL_set_tlsext_use_srtp(ssl.get(), config->srtp_profiles.c_str())) { - return false; - } - if (config->min_version != 0 && - !SSL_set_min_proto_version(ssl.get(), (uint16_t)config->min_version)) { - return false; - } - if (config->max_version != 0 && - !SSL_set_max_proto_version(ssl.get(), (uint16_t)config->max_version)) { - return false; - } - if (config->mtu != 0) { - SSL_set_options(ssl.get(), SSL_OP_NO_QUERY_MTU); - SSL_set_mtu(ssl.get(), config->mtu); - } - if (config->renegotiate_freely) { - // This is always on for OpenSSL. - } - if (!config->check_close_notify) { - SSL_set_quiet_shutdown(ssl.get(), 1); - } - if (config->p384_only) { - int nid = NID_secp384r1; - if (!SSL_set1_curves(ssl.get(), &nid, 1)) { - return false; - } - } - if (config->enable_all_curves) { - static const int kAllCurves[] = { - NID_X25519, NID_X9_62_prime256v1, NID_X448, NID_secp521r1, NID_secp384r1 - }; - if (!SSL_set1_curves(ssl.get(), kAllCurves, - OPENSSL_ARRAY_SIZE(kAllCurves))) { - return false; - } - } - if (config->max_cert_list > 0) { - SSL_set_max_cert_list(ssl.get(), config->max_cert_list); - } - - if (!config->async) { - SSL_set_mode(ssl.get(), SSL_MODE_AUTO_RETRY); - } - - 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(!config->async); - 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 |