test/ssl_test.c

   1 /*
   2  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   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
   8  */
   9
  10 #include <stdio.h>
  11 #include <string.h>
  12
  13 #include <openssl/conf.h>
  14 #include <openssl/err.h>
  15 #include <openssl/ssl.h>
  16
  17 #include "handshake_helper.h"
  18 #include "ssl_test_ctx.h"
  19 #include "testutil.h"
  20 #include "test_main_custom.h"
  21
  22 static CONF *conf = NULL;
  23
  24 /* Currently the section names are of the form test-<number>, e.g. test-15. */
  25 #define MAX_TESTCASE_NAME_LENGTH 100
  26
  27 static const char *print_alert(int alert)
  28 {
  29     return alert ? SSL_alert_desc_string_long(alert) : "no alert";
  30 }
  31
  32 static int check_result(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
  33 {
  34     if (result->result != test_ctx->expected_result) {
  35         fprintf(stderr, "ExpectedResult mismatch: expected %s, got %s.\n",
  36                 ssl_test_result_name(test_ctx->expected_result),
  37                 ssl_test_result_name(result->result));
  38         return 0;
  39     }
  40     return 1;
  41 }
  42
  43 static int check_alerts(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
  44 {
  45     if (result->client_alert_sent != result->client_alert_received) {
  46         fprintf(stderr, "Client sent alert %s but server received %s\n.",
  47                 print_alert(result->client_alert_sent),
  48                 print_alert(result->client_alert_received));
  49         /*
  50          * We can't bail here because the peer doesn't always get far enough
  51          * to process a received alert. Specifically, in protocol version
  52          * negotiation tests, we have the following scenario.
  53          * Client supports TLS v1.2 only; Server supports TLS v1.1.
  54          * Client proposes TLS v1.2; server responds with 1.1;
  55          * Client now sends a protocol alert, using TLS v1.2 in the header.
  56          * The server, however, rejects the alert because of version mismatch
  57          * in the record layer; therefore, the server appears to never
  58          * receive the alert.
  59          */
  60         /* return 0; */
  61     }
  62
  63     if (result->server_alert_sent != result->server_alert_received) {
  64         fprintf(stderr, "Server sent alert %s but client received %s\n.",
  65                 print_alert(result->server_alert_sent),
  66                 print_alert(result->server_alert_received));
  67         /* return 0; */
  68     }
  69
  70     /* Tolerate an alert if one wasn't explicitly specified in the test. */
  71     if (test_ctx->expected_client_alert
  72         /*
  73          * The info callback alert value is computed as
  74          * (s->s3->send_alert[0] << 8) | s->s3->send_alert[1]
  75          * where the low byte is the alert code and the high byte is other stuff.
  76          */
  77         && (result->client_alert_sent & 0xff) != test_ctx->expected_client_alert) {
  78         fprintf(stderr, "ClientAlert mismatch: expected %s, got %s.\n",
  79                 print_alert(test_ctx->expected_client_alert),
  80                 print_alert(result->client_alert_sent));
  81         return 0;
  82     }
  83
  84     if (test_ctx->expected_server_alert
  85         && (result->server_alert_sent & 0xff) != test_ctx->expected_server_alert) {
  86         fprintf(stderr, "ServerAlert mismatch: expected %s, got %s.\n",
  87                 print_alert(test_ctx->expected_server_alert),
  88                 print_alert(result->server_alert_sent));
  89         return 0;
  90     }
  91
  92     if (result->client_num_fatal_alerts_sent > 1) {
  93         fprintf(stderr, "Client sent %d fatal alerts.\n",
  94                 result->client_num_fatal_alerts_sent);
  95         return 0;
  96     }
  97     if (result->server_num_fatal_alerts_sent > 1) {
  98         fprintf(stderr, "Server sent %d alerts.\n",
  99                 result->server_num_fatal_alerts_sent);
 100         return 0;
 101     }
 102     return 1;
 103 }
 104
 105 static int check_protocol(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 106 {
 107     if (result->client_protocol != result->server_protocol) {
 108         fprintf(stderr, "Client has protocol %s but server has %s\n.",
 109                 ssl_protocol_name(result->client_protocol),
 110                 ssl_protocol_name(result->server_protocol));
 111         return 0;
 112     }
 113
 114     if (test_ctx->expected_protocol) {
 115         if (result->client_protocol != test_ctx->expected_protocol) {
 116             fprintf(stderr, "Protocol mismatch: expected %s, got %s.\n",
 117                     ssl_protocol_name(test_ctx->expected_protocol),
 118                     ssl_protocol_name(result->client_protocol));
 119             return 0;
 120         }
 121     }
 122     return 1;
 123 }
 124
 125 static int check_servername(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 126 {
 127     if (result->servername != test_ctx->expected_servername) {
 128       fprintf(stderr, "Client ServerName mismatch, expected %s, got %s\n.",
 129               ssl_servername_name(test_ctx->expected_servername),
 130               ssl_servername_name(result->servername));
 131       return 0;
 132     }
 133   return 1;
 134 }
 135
 136 static int check_session_ticket(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 137 {
 138     if (test_ctx->session_ticket_expected == SSL_TEST_SESSION_TICKET_IGNORE)
 139         return 1;
 140     if (result->session_ticket != test_ctx->session_ticket_expected) {
 141         fprintf(stderr, "Client SessionTicketExpected mismatch, expected %s, got %s\n.",
 142                 ssl_session_ticket_name(test_ctx->session_ticket_expected),
 143                 ssl_session_ticket_name(result->session_ticket));
 144         return 0;
 145     }
 146     return 1;
 147 }
 148
 149 #ifndef OPENSSL_NO_NEXTPROTONEG
 150 static int check_npn(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 151 {
 152     int ret = 1;
 153     ret &= strings_equal("NPN Negotiated (client vs server)",
 154                          result->client_npn_negotiated,
 155                          result->server_npn_negotiated);
 156     ret &= strings_equal("ExpectedNPNProtocol",
 157                          test_ctx->expected_npn_protocol,
 158                          result->client_npn_negotiated);
 159     return ret;
 160 }
 161 #endif
 162
 163 static int check_alpn(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 164 {
 165     int ret = 1;
 166     ret &= strings_equal("ALPN Negotiated (client vs server)",
 167                          result->client_alpn_negotiated,
 168                          result->server_alpn_negotiated);
 169     ret &= strings_equal("ExpectedALPNProtocol",
 170                          test_ctx->expected_alpn_protocol,
 171                          result->client_alpn_negotiated);
 172     return ret;
 173 }
 174
 175 static int check_resumption(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 176 {
 177     if (result->client_resumed != result->server_resumed) {
 178         fprintf(stderr, "Resumption mismatch (client vs server): %d vs %d\n",
 179                 result->client_resumed, result->server_resumed);
 180         return 0;
 181     }
 182     if (result->client_resumed != test_ctx->resumption_expected) {
 183         fprintf(stderr, "ResumptionExpected mismatch: %d vs %d\n",
 184                 test_ctx->resumption_expected, result->client_resumed);
 185         return 0;
 186     }
 187     return 1;
 188 }
 189
 190 /*
 191  * This could be further simplified by constructing an expected
 192  * HANDSHAKE_RESULT, and implementing comparison methods for
 193  * its fields.
 194  */
 195 static int check_test(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 196 {
 197     int ret = 1;
 198     ret &= check_result(result, test_ctx);
 199     ret &= check_alerts(result, test_ctx);
 200     if (result->result == SSL_TEST_SUCCESS) {
 201         ret &= check_protocol(result, test_ctx);
 202         ret &= check_servername(result, test_ctx);
 203         ret &= check_session_ticket(result, test_ctx);
 204         ret &= (result->session_ticket_do_not_call == 0);
 205 #ifndef OPENSSL_NO_NEXTPROTONEG
 206         ret &= check_npn(result, test_ctx);
 207 #endif
 208         ret &= check_alpn(result, test_ctx);
 209         ret &= check_resumption(result, test_ctx);
 210     }
 211     return ret;
 212 }
 213
 214 static int test_handshake(int idx)
 215 {
 216     int ret = 0;
 217     SSL_CTX *server_ctx = NULL, *server2_ctx = NULL, *client_ctx = NULL,
 218         *resume_server_ctx = NULL, *resume_client_ctx = NULL;
 219     SSL_TEST_CTX *test_ctx = NULL;
 220     HANDSHAKE_RESULT *result = NULL;
 221     char test_app[MAX_TESTCASE_NAME_LENGTH];
 222
 223     BIO_snprintf(test_app, sizeof(test_app), "test-%d", idx);
 224
 225     test_ctx = SSL_TEST_CTX_create(conf, test_app);
 226     if (test_ctx == NULL)
 227         goto err;
 228
 229 #ifndef OPENSSL_NO_DTLS
 230     if (test_ctx->method == SSL_TEST_METHOD_DTLS) {
 231         server_ctx = SSL_CTX_new(DTLS_server_method());
 232         if (test_ctx->extra.server.servername_callback !=
 233             SSL_TEST_SERVERNAME_CB_NONE) {
 234             server2_ctx = SSL_CTX_new(DTLS_server_method());
 235             TEST_check(server2_ctx != NULL);
 236         }
 237         client_ctx = SSL_CTX_new(DTLS_client_method());
 238         if (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_RESUME) {
 239             resume_server_ctx = SSL_CTX_new(DTLS_server_method());
 240             resume_client_ctx = SSL_CTX_new(DTLS_client_method());
 241             TEST_check(resume_server_ctx != NULL);
 242             TEST_check(resume_client_ctx != NULL);
 243         }
 244     }
 245 #endif
 246     if (test_ctx->method == SSL_TEST_METHOD_TLS) {
 247         server_ctx = SSL_CTX_new(TLS_server_method());
 248         /* SNI on resumption isn't supported/tested yet. */
 249         if (test_ctx->extra.server.servername_callback !=
 250             SSL_TEST_SERVERNAME_CB_NONE) {
 251             server2_ctx = SSL_CTX_new(TLS_server_method());
 252             TEST_check(server2_ctx != NULL);
 253         }
 254         client_ctx = SSL_CTX_new(TLS_client_method());
 255
 256         if (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_RESUME) {
 257             resume_server_ctx = SSL_CTX_new(TLS_server_method());
 258             resume_client_ctx = SSL_CTX_new(TLS_client_method());
 259             TEST_check(resume_server_ctx != NULL);
 260             TEST_check(resume_client_ctx != NULL);
 261         }
 262     }
 263
 264     TEST_check(server_ctx != NULL);
 265     TEST_check(client_ctx != NULL);
 266
 267     TEST_check(CONF_modules_load(conf, test_app, 0) > 0);
 268
 269     if (!SSL_CTX_config(server_ctx, "server")
 270         || !SSL_CTX_config(client_ctx, "client")) {
 271         goto err;
 272     }
 273
 274     if (server2_ctx != NULL && !SSL_CTX_config(server2_ctx, "server2"))
 275         goto err;
 276     if (resume_server_ctx != NULL
 277         && !SSL_CTX_config(resume_server_ctx, "resume-server"))
 278         goto err;
 279     if (resume_client_ctx != NULL
 280         && !SSL_CTX_config(resume_client_ctx, "resume-client"))
 281         goto err;
 282
 283     result = do_handshake(server_ctx, server2_ctx, client_ctx,
 284                           resume_server_ctx, resume_client_ctx, test_ctx);
 285
 286     ret = check_test(result, test_ctx);
 287
 288 err:
 289     CONF_modules_unload(0);
 290     SSL_CTX_free(server_ctx);
 291     SSL_CTX_free(server2_ctx);
 292     SSL_CTX_free(client_ctx);
 293     SSL_CTX_free(resume_server_ctx);
 294     SSL_CTX_free(resume_client_ctx);
 295     SSL_TEST_CTX_free(test_ctx);
 296     HANDSHAKE_RESULT_free(result);
 297     return ret;
 298 }
 299
 300 int test_main(int argc, char **argv)
 301 {
 302     int result = 0;
 303     long num_tests;
 304
 305     if (argc != 2)
 306         return 1;
 307
 308     conf = NCONF_new(NULL);
 309     TEST_check(conf != NULL);
 310
 311     /* argv[1] should point to the test conf file */
 312     TEST_check(NCONF_load(conf, argv[1], NULL) > 0);
 313
 314     TEST_check(NCONF_get_number_e(conf, NULL, "num_tests", &num_tests));
 315
 316     ADD_ALL_TESTS(test_handshake, (int)(num_tests));
 317     result = run_tests(argv[0]);
 318
 319     NCONF_free(conf);
 320     return result;
 321 }