apps/s_cb.c

   1 /* apps/s_cb.c - callback functions used by s_client, s_server, and s_time */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111
 112 #include <stdio.h>
 113 #include <stdlib.h>
 114 #define USE_SOCKETS
 115 #define NON_MAIN
 116 #include "apps.h"
 117 #undef NON_MAIN
 118 #undef USE_SOCKETS
 119 #include <openssl/err.h>
 120 #include <openssl/x509.h>
 121 #include <openssl/ssl.h>
 122 #include "s_apps.h"
 123
 124 int verify_depth=0;
 125 int verify_error=X509_V_OK;
 126
 127 int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
 128         {
 129         char buf[256];
 130         X509 *err_cert;
 131         int err,depth;
 132
 133         err_cert=X509_STORE_CTX_get_current_cert(ctx);
 134         err=    X509_STORE_CTX_get_error(ctx);
 135         depth=  X509_STORE_CTX_get_error_depth(ctx);
 136
 137         X509_NAME_oneline(X509_get_subject_name(err_cert),buf,sizeof buf);
 138         BIO_printf(bio_err,"depth=%d %s\n",depth,buf);
 139         if (!ok)
 140                 {
 141                 BIO_printf(bio_err,"verify error:num=%d:%s\n",err,
 142                         X509_verify_cert_error_string(err));
 143                 if (verify_depth >= depth)
 144                         {
 145                         ok=1;
 146                         verify_error=X509_V_OK;
 147                         }
 148                 else
 149                         {
 150                         ok=0;
 151                         verify_error=X509_V_ERR_CERT_CHAIN_TOO_LONG;
 152                         }
 153                 }
 154         switch (ctx->error)
 155                 {
 156         case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
 157                 X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert),buf,sizeof buf);
 158                 BIO_printf(bio_err,"issuer= %s\n",buf);
 159                 break;
 160         case X509_V_ERR_CERT_NOT_YET_VALID:
 161         case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
 162                 BIO_printf(bio_err,"notBefore=");
 163                 ASN1_TIME_print(bio_err,X509_get_notBefore(ctx->current_cert));
 164                 BIO_printf(bio_err,"\n");
 165                 break;
 166         case X509_V_ERR_CERT_HAS_EXPIRED:
 167         case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
 168                 BIO_printf(bio_err,"notAfter=");
 169                 ASN1_TIME_print(bio_err,X509_get_notAfter(ctx->current_cert));
 170                 BIO_printf(bio_err,"\n");
 171                 break;
 172                 }
 173         BIO_printf(bio_err,"verify return:%d\n",ok);
 174         return(ok);
 175         }
 176
 177 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
 178         {
 179         if (cert_file != NULL)
 180                 {
 181                 /*
 182                 SSL *ssl;
 183                 X509 *x509;
 184                 */
 185
 186                 if (SSL_CTX_use_certificate_file(ctx,cert_file,
 187                         SSL_FILETYPE_PEM) <= 0)
 188                         {
 189                         BIO_printf(bio_err,"unable to get certificate from '%s'\n",cert_file);
 190                         ERR_print_errors(bio_err);
 191                         return(0);
 192                         }
 193                 if (key_file == NULL) key_file=cert_file;
 194                 if (SSL_CTX_use_PrivateKey_file(ctx,key_file,
 195                         SSL_FILETYPE_PEM) <= 0)
 196                         {
 197                         BIO_printf(bio_err,"unable to get private key from '%s'\n",key_file);
 198                         ERR_print_errors(bio_err);
 199                         return(0);
 200                         }
 201
 202                 /*
 203                 In theory this is no longer needed
 204                 ssl=SSL_new(ctx);
 205                 x509=SSL_get_certificate(ssl);
 206
 207                 if (x509 != NULL) {
 208                         EVP_PKEY *pktmp;
 209                         pktmp = X509_get_pubkey(x509);
 210                         EVP_PKEY_copy_parameters(pktmp,
 211                                                 SSL_get_privatekey(ssl));
 212                         EVP_PKEY_free(pktmp);
 213                 }
 214                 SSL_free(ssl);
 215                 */
 216
 217                 /* If we are using DSA, we can copy the parameters from
 218                  * the private key */
 219
 220
 221                 /* Now we know that a key and cert have been set against
 222                  * the SSL context */
 223                 if (!SSL_CTX_check_private_key(ctx))
 224                         {
 225                         BIO_printf(bio_err,"Private key does not match the certificate public key\n");
 226                         return(0);
 227                         }
 228                 }
 229         return(1);
 230         }
 231
 232 long MS_CALLBACK bio_dump_cb(BIO *bio, int cmd, const char *argp, int argi,
 233              long argl, long ret)
 234         {
 235         BIO *out;
 236
 237         out=(BIO *)BIO_get_callback_arg(bio);
 238         if (out == NULL) return(ret);
 239
 240         if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
 241                 {
 242                 BIO_printf(out,"read from %p [%p] (%d bytes => %ld (0x%lX))\n",
 243                         (void *)bio,argp,argi,ret,ret);
 244                 BIO_dump(out,argp,(int)ret);
 245                 return(ret);
 246                 }
 247         else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
 248                 {
 249                 BIO_printf(out,"write to %p [%p] (%d bytes => %ld (0x%lX))\n",
 250                         (void *)bio,argp,argi,ret,ret);
 251                 BIO_dump(out,argp,(int)ret);
 252                 }
 253         return(ret);
 254         }
 255
 256 void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret)
 257         {
 258         char *str;
 259         int w;
 260
 261         w=where& ~SSL_ST_MASK;
 262
 263         if (w & SSL_ST_CONNECT) str="SSL_connect";
 264         else if (w & SSL_ST_ACCEPT) str="SSL_accept";
 265         else str="undefined";
 266
 267         if (where & SSL_CB_LOOP)
 268                 {
 269                 BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s));
 270                 }
 271         else if (where & SSL_CB_ALERT)
 272                 {
 273                 str=(where & SSL_CB_READ)?"read":"write";
 274                 BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n",
 275                         str,
 276                         SSL_alert_type_string_long(ret),
 277                         SSL_alert_desc_string_long(ret));
 278                 }
 279         else if (where & SSL_CB_EXIT)
 280                 {
 281                 if (ret == 0)
 282                         BIO_printf(bio_err,"%s:failed in %s\n",
 283                                 str,SSL_state_string_long(s));
 284                 else if (ret < 0)
 285                         {
 286                         BIO_printf(bio_err,"%s:error in %s\n",
 287                                 str,SSL_state_string_long(s));
 288                         }
 289                 }
 290         }
 291
 292
 293 void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
 294         {
 295         BIO *bio = arg;
 296         const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= "";
 297
 298         str_write_p = write_p ? ">>>" : "<<<";
 299
 300         switch (version)
 301                 {
 302         case SSL2_VERSION:
 303                 str_version = "SSL 2.0";
 304                 break;
 305         case SSL3_VERSION:
 306                 str_version = "SSL 3.0 ";
 307                 break;
 308         case TLS1_VERSION:
 309                 str_version = "TLS 1.0 ";
 310                 break;
 311         default:
 312                 str_version = "???";
 313                 }
 314
 315         if (version == SSL2_VERSION)
 316                 {
 317                 str_details1 = "???";
 318
 319                 if (len > 0)
 320                         {
 321                         switch (((unsigned char*)buf)[0])
 322                                 {
 323                                 case 0:
 324                                         str_details1 = ", ERROR:";
 325                                         str_details2 = " ???";
 326                                         if (len >= 3)
 327                                                 {
 328                                                 unsigned err = (((unsigned char*)buf)[1]<<8) + ((unsigned char*)buf)[2];
 329
 330                                                 switch (err)
 331                                                         {
 332                                                 case 0x0001:
 333                                                         str_details2 = " NO-CIPHER-ERROR";
 334                                                         break;
 335                                                 case 0x0002:
 336                                                         str_details2 = " NO-CERTIFICATE-ERROR";
 337                                                         break;
 338                                                 case 0x0004:
 339                                                         str_details2 = " BAD-CERTIFICATE-ERROR";
 340                                                         break;
 341                                                 case 0x0006:
 342                                                         str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
 343                                                         break;
 344                                                         }
 345                                                 }
 346
 347                                         break;
 348                                 case 1:
 349                                         str_details1 = ", CLIENT-HELLO";
 350                                         break;
 351                                 case 2:
 352                                         str_details1 = ", CLIENT-MASTER-KEY";
 353                                         break;
 354                                 case 3:
 355                                         str_details1 = ", CLIENT-FINISHED";
 356                                         break;
 357                                 case 4:
 358                                         str_details1 = ", SERVER-HELLO";
 359                                         break;
 360                                 case 5:
 361                                         str_details1 = ", SERVER-VERIFY";
 362                                         break;
 363                                 case 6:
 364                                         str_details1 = ", SERVER-FINISHED";
 365                                         break;
 366                                 case 7:
 367                                         str_details1 = ", REQUEST-CERTIFICATE";
 368                                         break;
 369                                 case 8:
 370                                         str_details1 = ", CLIENT-CERTIFICATE";
 371                                         break;
 372                                 }
 373                         }
 374                 }
 375
 376         if (version == SSL3_VERSION || version == TLS1_VERSION)
 377                 {
 378                 switch (content_type)
 379                         {
 380                 case 20:
 381                         str_content_type = "ChangeCipherSpec";
 382                         break;
 383                 case 21:
 384                         str_content_type = "Alert";
 385                         break;
 386                 case 22:
 387                         str_content_type = "Handshake";
 388                         break;
 389                         }
 390
 391                 if (content_type == 21) /* Alert */
 392                         {
 393                         str_details1 = ", ???";
 394
 395                         if (len == 2)
 396                                 {
 397                                 switch (((unsigned char*)buf)[0])
 398                                         {
 399                                 case 1:
 400                                         str_details1 = ", warning";
 401                                         break;
 402                                 case 2:
 403                                         str_details1 = ", fatal";
 404                                         break;
 405                                         }
 406
 407                                 str_details2 = " ???";
 408                                 switch (((unsigned char*)buf)[1])
 409                                         {
 410                                 case 0:
 411                                         str_details2 = " close_notify";
 412                                         break;
 413                                 case 10:
 414                                         str_details2 = " unexpected_message";
 415                                         break;
 416                                 case 20:
 417                                         str_details2 = " bad_record_mac";
 418                                         break;
 419                                 case 21:
 420                                         str_details2 = " decryption_failed";
 421                                         break;
 422                                 case 22:
 423                                         str_details2 = " record_overflow";
 424                                         break;
 425                                 case 30:
 426                                         str_details2 = " decompression_failure";
 427                                         break;
 428                                 case 40:
 429                                         str_details2 = " handshake_failure";
 430                                         break;
 431                                 case 42:
 432                                         str_details2 = " bad_certificate";
 433                                         break;
 434                                 case 43:
 435                                         str_details2 = " unsupported_certificate";
 436                                         break;
 437                                 case 44:
 438                                         str_details2 = " certificate_revoked";
 439                                         break;
 440                                 case 45:
 441                                         str_details2 = " certificate_expired";
 442                                         break;
 443                                 case 46:
 444                                         str_details2 = " certificate_unknown";
 445                                         break;
 446                                 case 47:
 447                                         str_details2 = " illegal_parameter";
 448                                         break;
 449                                 case 48:
 450                                         str_details2 = " unknown_ca";
 451                                         break;
 452                                 case 49:
 453                                         str_details2 = " access_denied";
 454                                         break;
 455                                 case 50:
 456                                         str_details2 = " decode_error";
 457                                         break;
 458                                 case 51:
 459                                         str_details2 = " decrypt_error";
 460                                         break;
 461                                 case 60:
 462                                         str_details2 = " export_restriction";
 463                                         break;
 464                                 case 70:
 465                                         str_details2 = " protocol_version";
 466                                         break;
 467                                 case 71:
 468                                         str_details2 = " insufficient_security";
 469                                         break;
 470                                 case 80:
 471                                         str_details2 = " internal_error";
 472                                         break;
 473                                 case 90:
 474                                         str_details2 = " user_canceled";
 475                                         break;
 476                                 case 100:
 477                                         str_details2 = " no_renegotiation";
 478                                         break;
 479                                         }
 480                                 }
 481                         }
 482
 483                 if (content_type == 22) /* Handshake */
 484                         {
 485                         str_details1 = "???";
 486
 487                         if (len > 0)
 488                                 {
 489                                 switch (((unsigned char*)buf)[0])
 490                                         {
 491                                 case 0:
 492                                         str_details1 = ", HelloRequest";
 493                                         break;
 494                                 case 1:
 495                                         str_details1 = ", ClientHello";
 496                                         break;
 497                                 case 2:
 498                                         str_details1 = ", ServerHello";
 499                                         break;
 500                                 case 11:
 501                                         str_details1 = ", Certificate";
 502                                         break;
 503                                 case 12:
 504                                         str_details1 = ", ServerKeyExchange";
 505                                         break;
 506                                 case 13:
 507                                         str_details1 = ", CertificateRequest";
 508                                         break;
 509                                 case 14:
 510                                         str_details1 = ", ServerHelloDone";
 511                                         break;
 512                                 case 15:
 513                                         str_details1 = ", CertificateVerify";
 514                                         break;
 515                                 case 16:
 516                                         str_details1 = ", ClientKeyExchange";
 517                                         break;
 518                                 case 20:
 519                                         str_details1 = ", Finished";
 520                                         break;
 521                                         }
 522                                 }
 523                         }
 524                 }
 525
 526         BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version, str_content_type, (unsigned long)len, str_details1, str_details2);
 527
 528         if (len > 0)
 529                 {
 530                 size_t num, i;
 531
 532                 BIO_printf(bio, "   ");
 533                 num = len;
 534 #if 0
 535                 if (num > 16)
 536                         num = 16;
 537 #endif
 538                 for (i = 0; i < num; i++)
 539                         {
 540                         if (i % 16 == 0 && i > 0)
 541                                 BIO_printf(bio, "\n   ");
 542                         BIO_printf(bio, " %02x", ((unsigned char*)buf)[i]);
 543                         }
 544                 if (i < len)
 545                         BIO_printf(bio, " ...");
 546                 BIO_printf(bio, "\n");
 547                 }
 548         BIO_flush(bio);
 549         }