Security/libsecurity_ssl/regressions/ssl-46-SSLGetSupportedCiphers.c

   1 /*
   2  * Copyright (c) 2012,2014 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <Security/SecureTransport.h>
  28 #include <AssertMacros.h>
  29
  30 #include "ssl_regressions.h"
  31 #include "ssl-utils.h"
  32
  33
  34 #include "cipherSpecs.h"
  35
  36 static int test_GetSupportedCiphers(SSLContextRef ssl)
  37 {
  38     size_t max_ciphers = 0;
  39     int fail=1;
  40     SSLCipherSuite *ciphers = NULL;
  41
  42     require_noerr(SSLGetNumberSupportedCiphers(ssl, &max_ciphers), out);
  43
  44     size_t size = max_ciphers * sizeof (SSLCipherSuite);
  45     ciphers = (SSLCipherSuite *) malloc(size);
  46
  47     require_string(ciphers, out, "out of memory");
  48     memset(ciphers, 0xff, size);
  49
  50     size_t num_ciphers = max_ciphers;
  51     require_noerr(SSLGetSupportedCiphers(ssl, ciphers, &num_ciphers), out);
  52
  53
  54     for (size_t i = 0; i < num_ciphers; i++) {
  55         require(ciphers[i]!=(SSLCipherSuite)(-1), out);
  56     }
  57
  58     /* Success! */
  59     fail=0;
  60
  61 out:
  62     if(ciphers) free(ciphers);
  63     return fail;
  64 }
  65
  66 static
  67 int allowed_default_ciphers(SSLCipherSuite cs)
  68 {
  69     switch (cs) {
  70
  71         /* BAD to enable by default */
  72
  73
  74         /*
  75          * Tags for SSL 2 cipher kinds which are not specified
  76          * for SSL 3.
  77          */
  78         case SSL_RSA_WITH_RC2_CBC_MD5:
  79         case SSL_RSA_WITH_IDEA_CBC_MD5:
  80         case SSL_RSA_WITH_DES_CBC_MD5:
  81         case SSL_RSA_WITH_3DES_EDE_CBC_MD5:
  82
  83         /* Export and Simple DES ciphers */
  84         case SSL_RSA_EXPORT_WITH_RC4_40_MD5:
  85         case SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5:
  86         case SSL_RSA_WITH_IDEA_CBC_SHA:
  87         case SSL_RSA_EXPORT_WITH_DES40_CBC_SHA:
  88         case SSL_RSA_WITH_DES_CBC_SHA:
  89         case SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA:
  90         case SSL_DH_DSS_WITH_DES_CBC_SHA:
  91         case SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA:
  92         case SSL_DH_RSA_WITH_DES_CBC_SHA:
  93         case SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA:
  94         case SSL_DHE_DSS_WITH_DES_CBC_SHA:
  95         case SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA:
  96         case SSL_DHE_RSA_WITH_DES_CBC_SHA:
  97         case SSL_DH_anon_EXPORT_WITH_RC4_40_MD5:
  98         case SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA:
  99         case SSL_DH_anon_WITH_DES_CBC_SHA:
 100         case SSL_FORTEZZA_DMS_WITH_NULL_SHA:
 101         case SSL_FORTEZZA_DMS_WITH_FORTEZZA_CBC_SHA:
 102
 103         case SSL_NO_SUCH_CIPHERSUITE:
 104
 105         /* Null ciphers. */
 106         case TLS_NULL_WITH_NULL_NULL:
 107         case TLS_RSA_WITH_NULL_MD5:
 108         case TLS_RSA_WITH_NULL_SHA:
 109         case TLS_RSA_WITH_NULL_SHA256:
 110         case TLS_ECDH_ECDSA_WITH_NULL_SHA:
 111         case TLS_ECDHE_ECDSA_WITH_NULL_SHA:
 112         case TLS_ECDHE_RSA_WITH_NULL_SHA:
 113         case TLS_ECDH_RSA_WITH_NULL_SHA:
 114         case TLS_ECDH_anon_WITH_NULL_SHA:
 115
 116         /* Completely anonymous Diffie-Hellman */
 117         case TLS_DH_anon_WITH_RC4_128_MD5:
 118         case TLS_DH_anon_WITH_3DES_EDE_CBC_SHA:
 119         case TLS_DH_anon_WITH_AES_128_CBC_SHA:
 120         case TLS_DH_anon_WITH_AES_256_CBC_SHA:
 121         case TLS_DH_anon_WITH_AES_128_CBC_SHA256:
 122         case TLS_DH_anon_WITH_AES_256_CBC_SHA256:
 123         case TLS_DH_anon_WITH_AES_128_GCM_SHA256:
 124         case TLS_DH_anon_WITH_AES_256_GCM_SHA384:
 125         case TLS_ECDH_anon_WITH_RC4_128_SHA:
 126         case TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA:
 127         case TLS_ECDH_anon_WITH_AES_128_CBC_SHA:
 128         case TLS_ECDH_anon_WITH_AES_256_CBC_SHA:
 129
 130             return 0;
 131
 132
 133         /* OK to enable by default */
 134
 135         /* Server provided RSA certificate for key exchange. */
 136         case TLS_RSA_WITH_RC4_128_MD5:
 137         case TLS_RSA_WITH_RC4_128_SHA:
 138         case TLS_RSA_WITH_3DES_EDE_CBC_SHA:
 139         case TLS_RSA_WITH_AES_128_CBC_SHA:
 140         case TLS_RSA_WITH_AES_256_CBC_SHA:
 141         case TLS_RSA_WITH_AES_128_CBC_SHA256:
 142         case TLS_RSA_WITH_AES_256_CBC_SHA256:
 143             return 1;
 144
 145         /* Server-authenticated (and optionally client-authenticated) Diffie-Hellman. */
 146         case TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA:
 147         case TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA:
 148         case TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA:
 149         case TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA:
 150         case TLS_DH_DSS_WITH_AES_128_CBC_SHA:
 151         case TLS_DH_RSA_WITH_AES_128_CBC_SHA:
 152         case TLS_DHE_DSS_WITH_AES_128_CBC_SHA:
 153         case TLS_DHE_RSA_WITH_AES_128_CBC_SHA:
 154         case TLS_DH_DSS_WITH_AES_256_CBC_SHA:
 155         case TLS_DH_RSA_WITH_AES_256_CBC_SHA:
 156         case TLS_DHE_DSS_WITH_AES_256_CBC_SHA:
 157         case TLS_DHE_RSA_WITH_AES_256_CBC_SHA:
 158         case TLS_DH_DSS_WITH_AES_128_CBC_SHA256:
 159         case TLS_DH_RSA_WITH_AES_128_CBC_SHA256:
 160         case TLS_DHE_DSS_WITH_AES_128_CBC_SHA256:
 161         case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256:
 162         case TLS_DH_DSS_WITH_AES_256_CBC_SHA256:
 163         case TLS_DH_RSA_WITH_AES_256_CBC_SHA256:
 164         case TLS_DHE_DSS_WITH_AES_256_CBC_SHA256:
 165         case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256:
 166
 167         case TLS_RSA_WITH_AES_128_GCM_SHA256:
 168         case TLS_RSA_WITH_AES_256_GCM_SHA384:
 169         case TLS_DHE_RSA_WITH_AES_128_GCM_SHA256:
 170         case TLS_DHE_RSA_WITH_AES_256_GCM_SHA384:
 171         case TLS_DH_RSA_WITH_AES_128_GCM_SHA256:
 172         case TLS_DH_RSA_WITH_AES_256_GCM_SHA384:
 173         case TLS_DHE_DSS_WITH_AES_128_GCM_SHA256:
 174         case TLS_DHE_DSS_WITH_AES_256_GCM_SHA384:
 175         case TLS_DH_DSS_WITH_AES_128_GCM_SHA256:
 176         case TLS_DH_DSS_WITH_AES_256_GCM_SHA384:
 177
 178         case TLS_ECDH_ECDSA_WITH_RC4_128_SHA:
 179         case TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA:
 180         case TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA:
 181         case TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA:
 182         case TLS_ECDHE_ECDSA_WITH_RC4_128_SHA:
 183         case TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA:
 184         case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA:
 185         case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA:
 186         case TLS_ECDH_RSA_WITH_RC4_128_SHA:
 187         case TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA:
 188         case TLS_ECDH_RSA_WITH_AES_128_CBC_SHA:
 189         case TLS_ECDH_RSA_WITH_AES_256_CBC_SHA:
 190         case TLS_ECDHE_RSA_WITH_RC4_128_SHA:
 191         case TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA:
 192         case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA:
 193         case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA:
 194
 195         case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256:
 196         case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384:
 197         case TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256:
 198         case TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384:
 199         case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256:
 200         case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384:
 201         case TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256:
 202         case TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384:
 203
 204         case TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256:
 205         case TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384:
 206         case TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256:
 207         case TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384:
 208         case TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256:
 209         case TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384:
 210         case TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256:
 211         case TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384:
 212
 213         /* RFC 5746 - Secure Renegotiation */
 214         case TLS_EMPTY_RENEGOTIATION_INFO_SCSV:
 215             return 1;
 216
 217         /* unknown cipher ? */
 218         default:
 219             return 0;
 220     }
 221 }
 222
 223 static OSStatus SocketWrite(SSLConnectionRef conn, const void *data, size_t *length)
 224 {
 225     return errSSLWouldBlock;
 226 }
 227
 228 static OSStatus SocketRead(SSLConnectionRef conn, void *data, size_t *length)
 229 {
 230     return errSSLWouldBlock;
 231 }
 232
 233
 234 static int test_GetEnabledCiphers(SSLContextRef ssl)
 235 {
 236     size_t max_ciphers = 0;
 237     int fail=1;
 238     SSLCipherSuite *ciphers = NULL;
 239     OSStatus err;
 240
 241     err=SSLSetIOFuncs(ssl, &SocketRead, &SocketWrite);
 242     err=SSLSetConnection(ssl, NULL);
 243     err=SSLHandshake(ssl);
 244
 245     require_noerr(SSLGetNumberEnabledCiphers(ssl, &max_ciphers), out);
 246
 247     size_t size = max_ciphers * sizeof (SSLCipherSuite);
 248     ciphers = (SSLCipherSuite *) malloc(size);
 249
 250     require_string(ciphers, out, "out of memory");
 251     memset(ciphers, 0xff, size);
 252
 253     size_t num_ciphers = max_ciphers;
 254     require_noerr(SSLGetEnabledCiphers(ssl, ciphers, &num_ciphers), out);
 255
 256     for (size_t i = 0; i < num_ciphers; i++) {
 257         char csname[256];
 258         snprintf(csname, 256, "(%04x) %s", ciphers[i], ciphersuite_name(ciphers[i]));
 259         /* Uncomment the next line if you want to list the default enabled ciphers */
 260         //printf("%s\n", csname);
 261         require_string(allowed_default_ciphers(ciphers[i]), out, csname);
 262     }
 263
 264     /* Success! */
 265     fail=0;
 266
 267 out:
 268     if(ciphers) free(ciphers);
 269     return fail;
 270 }
 271
 272 static int test_SetEnabledCiphers(SSLContextRef ssl)
 273 {
 274     int fail=1;
 275     size_t num_enabled;
 276
 277     /* This should not fail as long as we have one valid cipher in this table */
 278     SSLCipherSuite ciphers[] = {
 279         SSL_RSA_WITH_RC2_CBC_MD5, /* unsupported */
 280         TLS_RSA_WITH_NULL_SHA, /* supported by not enabled by default */
 281         TLS_RSA_WITH_AES_128_CBC_SHA, /* Supported and enabled by default */
 282     };
 283
 284     require_noerr(SSLSetEnabledCiphers(ssl, ciphers, sizeof(ciphers)/sizeof(SSLCipherSuite)), out);
 285     require_noerr(SSLGetNumberEnabledCiphers(ssl, &num_enabled), out);
 286
 287     require(num_enabled==2, out); /* 2 ciphers in the above table are supported */
 288
 289     /* Success! */
 290     fail=0;
 291
 292 out:
 293     return fail;
 294 }
 295
 296
 297 static void
 298 test(void)
 299 {
 300     SSLContextRef ssl = NULL;
 301
 302     require(ssl=SSLCreateContext(kCFAllocatorDefault, kSSLClientSide, kSSLStreamType), out);
 303     ok(ssl, "SSLCreateContext failed");
 304
 305     /* The order of this tests does matter, be careful when adding tests */
 306     ok(!test_GetSupportedCiphers(ssl), "GetSupportedCiphers test failed");
 307     ok(!test_GetEnabledCiphers(ssl), "GetEnabledCiphers test failed");
 308
 309     CFRelease(ssl); ssl=NULL;
 310
 311     require(ssl=SSLCreateContext(kCFAllocatorDefault, kSSLClientSide, kSSLStreamType), out);
 312     ok(ssl, "SSLCreateContext failed");
 313
 314     ok(!test_SetEnabledCiphers(ssl), "SetEnabledCiphers test failed");
 315
 316 out:
 317     if(ssl) CFRelease(ssl);
 318 }
 319
 320
 321 int ssl_46_SSLGetSupportedCiphers(int argc, char *const *argv)
 322 {
 323     plan_tests(5);
 324
 325     test();
 326
 327     return 0;
 328 }
 329