/* * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the OpenSSL license (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 */ #include #include #include #include #include "handshake_helper.h" #include "ssl_test_ctx.h" #include "testutil.h" static CONF *conf = NULL; /* Currently the section names are of the form test-, e.g. test-15. */ #define MAX_TESTCASE_NAME_LENGTH 100 typedef struct ssl_test_ctx_test_fixture { const char *test_case_name; char test_app[MAX_TESTCASE_NAME_LENGTH]; } SSL_TEST_FIXTURE; static SSL_TEST_FIXTURE set_up(const char *const test_case_name) { SSL_TEST_FIXTURE fixture; fixture.test_case_name = test_case_name; return fixture; } static const char *print_alert(int alert) { return alert ? SSL_alert_desc_string_long(alert) : "no alert"; } static int check_result(HANDSHAKE_RESULT result, SSL_TEST_CTX *test_ctx) { if (result.result != test_ctx->expected_result) { fprintf(stderr, "ExpectedResult mismatch: expected %s, got %s.\n", ssl_test_result_name(test_ctx->expected_result), ssl_test_result_name(result.result)); return 0; } return 1; } static int check_alerts(HANDSHAKE_RESULT result, SSL_TEST_CTX *test_ctx) { if (result.client_alert_sent != result.client_alert_received) { fprintf(stderr, "Client sent alert %s but server received %s\n.", print_alert(result.client_alert_sent), print_alert(result.client_alert_received)); /* * We can't bail here because the peer doesn't always get far enough * to process a received alert. Specifically, in protocol version * negotiation tests, we have the following scenario. * Client supports TLS v1.2 only; Server supports TLS v1.1. * Client proposes TLS v1.2; server responds with 1.1; * Client now sends a protocol alert, using TLS v1.2 in the header. * The server, however, rejects the alert because of version mismatch * in the record layer; therefore, the server appears to never * receive the alert. */ /* return 0; */ } if (result.server_alert_sent != result.server_alert_received) { fprintf(stderr, "Server sent alert %s but client received %s\n.", print_alert(result.server_alert_sent), print_alert(result.server_alert_received)); /* return 0; */ } /* Tolerate an alert if one wasn't explicitly specified in the test. */ if (test_ctx->client_alert /* * The info callback alert value is computed as * (s->s3->send_alert[0] << 8) | s->s3->send_alert[1] * where the low byte is the alert code and the high byte is other stuff. */ && (result.client_alert_sent & 0xff) != test_ctx->client_alert) { fprintf(stderr, "ClientAlert mismatch: expected %s, got %s.\n", print_alert(test_ctx->client_alert), print_alert(result.client_alert_sent)); return 0; } if (test_ctx->server_alert && (result.server_alert_sent & 0xff) != test_ctx->server_alert) { fprintf(stderr, "ServerAlert mismatch: expected %s, got %s.\n", print_alert(test_ctx->server_alert), print_alert(result.server_alert_sent)); return 0; } return 1; } static int check_protocol(HANDSHAKE_RESULT result, SSL_TEST_CTX *test_ctx) { if (result.client_protocol != result.server_protocol) { fprintf(stderr, "Client has protocol %s but server has %s\n.", ssl_protocol_name(result.client_protocol), ssl_protocol_name(result.server_protocol)); return 0; } if (test_ctx->protocol) { if (result.client_protocol != test_ctx->protocol) { fprintf(stderr, "Protocol mismatch: expected %s, got %s.\n", ssl_protocol_name(test_ctx->protocol), ssl_protocol_name(result.client_protocol)); return 0; } } return 1; } /* * This could be further simplified by constructing an expected * HANDSHAKE_RESULT, and implementing comparison methods for * its fields. */ static int check_test(HANDSHAKE_RESULT result, SSL_TEST_CTX *test_ctx) { int ret = 1; ret &= check_result(result, test_ctx); ret &= check_alerts(result, test_ctx); if (result.result == SSL_TEST_SUCCESS) ret &= check_protocol(result, test_ctx); return ret; } static int execute_test(SSL_TEST_FIXTURE fixture) { int ret = 0; SSL_CTX *server_ctx = NULL, *client_ctx = NULL; SSL_TEST_CTX *test_ctx = NULL; HANDSHAKE_RESULT result; server_ctx = SSL_CTX_new(TLS_server_method()); client_ctx = SSL_CTX_new(TLS_client_method()); OPENSSL_assert(server_ctx != NULL && client_ctx != NULL); OPENSSL_assert(CONF_modules_load(conf, fixture.test_app, 0) > 0); if (!SSL_CTX_config(server_ctx, "server") || !SSL_CTX_config(client_ctx, "client")) { goto err; } test_ctx = SSL_TEST_CTX_create(conf, fixture.test_app); if (test_ctx == NULL) goto err; result = do_handshake(server_ctx, client_ctx, test_ctx); ret = check_test(result, test_ctx); err: CONF_modules_unload(0); SSL_CTX_free(server_ctx); SSL_CTX_free(client_ctx); SSL_TEST_CTX_free(test_ctx); if (ret != 1) ERR_print_errors_fp(stderr); return ret; } static void tear_down(SSL_TEST_FIXTURE fixture) { } #define SETUP_SSL_TEST_FIXTURE() \ SETUP_TEST_FIXTURE(SSL_TEST_FIXTURE, set_up) #define EXECUTE_SSL_TEST() \ EXECUTE_TEST(execute_test, tear_down) static int test_handshake(int idx) { SETUP_SSL_TEST_FIXTURE(); BIO_snprintf(fixture.test_app, sizeof(fixture.test_app), "test-%d", idx); EXECUTE_SSL_TEST(); } int main(int argc, char **argv) { int result = 0; long num_tests; if (argc != 2) return 1; conf = NCONF_new(NULL); OPENSSL_assert(conf != NULL); /* argv[1] should point to the test conf file */ OPENSSL_assert(NCONF_load(conf, argv[1], NULL) > 0); OPENSSL_assert(NCONF_get_number_e(conf, NULL, "num_tests", &num_tests)); ADD_ALL_TESTS(test_handshake, (int)(num_tests)); result = run_tests(argv[0]); return result; }