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) 1998-2006 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/rand.h>
 121 #include <openssl/x509.h>
 122 #include <openssl/ssl.h>
 123 #include "s_apps.h"
 124
 125 #define COOKIE_SECRET_LENGTH    16
 126
 127 int verify_depth=0;
 128 int verify_quiet=0;
 129 int verify_error=X509_V_OK;
 130 int verify_return_error=0;
 131 unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
 132 int cookie_initialized=0;
 133
 134 int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
 135         {
 136         X509 *err_cert;
 137         int err,depth;
 138
 139         err_cert=X509_STORE_CTX_get_current_cert(ctx);
 140         err=    X509_STORE_CTX_get_error(ctx);
 141         depth=  X509_STORE_CTX_get_error_depth(ctx);
 142
 143         if (!verify_quiet || !ok)
 144                 {
 145                 BIO_printf(bio_err,"depth=%d ",depth);
 146                 if (err_cert)
 147                         {
 148                         X509_NAME_print_ex(bio_err,
 149                                         X509_get_subject_name(err_cert),
 150                                         0, XN_FLAG_ONELINE);
 151                         BIO_puts(bio_err, "\n");
 152                         }
 153                 else
 154                         BIO_puts(bio_err, "<no cert>\n");
 155                 }
 156         if (!ok)
 157                 {
 158                 BIO_printf(bio_err,"verify error:num=%d:%s\n",err,
 159                         X509_verify_cert_error_string(err));
 160                 if (verify_depth >= depth)
 161                         {
 162                         if (!verify_return_error)
 163                                 ok=1;
 164                         verify_error=X509_V_OK;
 165                         }
 166                 else
 167                         {
 168                         ok=0;
 169                         verify_error=X509_V_ERR_CERT_CHAIN_TOO_LONG;
 170                         }
 171                 }
 172         switch (err)
 173                 {
 174         case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
 175                 BIO_puts(bio_err,"issuer= ");
 176                 X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
 177                                         0, XN_FLAG_ONELINE);
 178                 BIO_puts(bio_err, "\n");
 179                 break;
 180         case X509_V_ERR_CERT_NOT_YET_VALID:
 181         case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
 182                 BIO_printf(bio_err,"notBefore=");
 183                 ASN1_TIME_print(bio_err,X509_get_notBefore(err_cert));
 184                 BIO_printf(bio_err,"\n");
 185                 break;
 186         case X509_V_ERR_CERT_HAS_EXPIRED:
 187         case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
 188                 BIO_printf(bio_err,"notAfter=");
 189                 ASN1_TIME_print(bio_err,X509_get_notAfter(err_cert));
 190                 BIO_printf(bio_err,"\n");
 191                 break;
 192         case X509_V_ERR_NO_EXPLICIT_POLICY:
 193                 policies_print(bio_err, ctx);
 194                 break;
 195                 }
 196         if (err == X509_V_OK && ok == 2 && !verify_quiet)
 197                 policies_print(bio_err, ctx);
 198         if (ok && !verify_quiet)
 199                 BIO_printf(bio_err,"verify return:%d\n",ok);
 200         return(ok);
 201         }
 202
 203 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
 204         {
 205         if (cert_file != NULL)
 206                 {
 207                 /*
 208                 SSL *ssl;
 209                 X509 *x509;
 210                 */
 211
 212                 if (SSL_CTX_use_certificate_file(ctx,cert_file,
 213                         SSL_FILETYPE_PEM) <= 0)
 214                         {
 215                         BIO_printf(bio_err,"unable to get certificate from '%s'\n",cert_file);
 216                         ERR_print_errors(bio_err);
 217                         return(0);
 218                         }
 219                 if (key_file == NULL) key_file=cert_file;
 220                 if (SSL_CTX_use_PrivateKey_file(ctx,key_file,
 221                         SSL_FILETYPE_PEM) <= 0)
 222                         {
 223                         BIO_printf(bio_err,"unable to get private key from '%s'\n",key_file);
 224                         ERR_print_errors(bio_err);
 225                         return(0);
 226                         }
 227
 228                 /*
 229                 In theory this is no longer needed
 230                 ssl=SSL_new(ctx);
 231                 x509=SSL_get_certificate(ssl);
 232
 233                 if (x509 != NULL) {
 234                         EVP_PKEY *pktmp;
 235                         pktmp = X509_get_pubkey(x509);
 236                         EVP_PKEY_copy_parameters(pktmp,
 237                                                 SSL_get_privatekey(ssl));
 238                         EVP_PKEY_free(pktmp);
 239                 }
 240                 SSL_free(ssl);
 241                 */
 242
 243                 /* If we are using DSA, we can copy the parameters from
 244                  * the private key */
 245
 246
 247                 /* Now we know that a key and cert have been set against
 248                  * the SSL context */
 249                 if (!SSL_CTX_check_private_key(ctx))
 250                         {
 251                         BIO_printf(bio_err,"Private key does not match the certificate public key\n");
 252                         return(0);
 253                         }
 254                 }
 255         return(1);
 256         }
 257
 258 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
 259                        STACK_OF(X509) *chain, int build_chain)
 260         {
 261         if (cert == NULL)
 262                 return 1;
 263         if (SSL_CTX_use_certificate(ctx,cert) <= 0)
 264                 {
 265                 BIO_printf(bio_err,"error setting certificate\n");
 266                 ERR_print_errors(bio_err);
 267                 return 0;
 268                 }
 269
 270         if (SSL_CTX_use_PrivateKey(ctx,key) <= 0)
 271                 {
 272                 BIO_printf(bio_err,"error setting private key\n");
 273                 ERR_print_errors(bio_err);
 274                 return 0;
 275                 }
 276
 277         /* Now we know that a key and cert have been set against
 278          * the SSL context */
 279         if (!SSL_CTX_check_private_key(ctx))
 280                 {
 281                 BIO_printf(bio_err,"Private key does not match the certificate public key\n");
 282                 return 0;
 283                 }
 284         if (chain && !SSL_CTX_set1_chain(ctx, chain))
 285                 {
 286                 BIO_printf(bio_err,"error setting certificate chain\n");
 287                 ERR_print_errors(bio_err);
 288                 return 0;
 289                 }
 290         if (!chain && build_chain && !SSL_CTX_build_cert_chain(ctx, 0))
 291                 {
 292                 BIO_printf(bio_err,"error building certificate chain\n");
 293                 ERR_print_errors(bio_err);
 294                 return 0;
 295                 }
 296
 297         return 1;
 298         }
 299
 300 static void ssl_print_client_cert_types(BIO *bio, SSL *s)
 301         {
 302         const unsigned char *p;
 303         int i;
 304         int cert_type_num = SSL_get0_certificate_types(s, &p);
 305         if (!cert_type_num)
 306                 return;
 307         BIO_puts(bio, "Client Certificate Types: ");
 308         for (i = 0; i < cert_type_num; i++)
 309                 {
 310                 unsigned char cert_type = p[i];
 311                 char *cname;
 312                 switch(cert_type)
 313                         {
 314                 case TLS_CT_RSA_SIGN:
 315                         cname = "RSA sign";
 316                         break;
 317
 318                 case TLS_CT_DSS_SIGN:
 319                         cname = "DSA sign";
 320                         break;
 321
 322                 case TLS_CT_RSA_FIXED_DH:
 323                         cname = "RSA fixed DH";
 324                         break;
 325
 326                 case TLS_CT_DSS_FIXED_DH:
 327                         cname = "DSS fixed DH";
 328                         break;
 329
 330                 case TLS_CT_ECDSA_SIGN:
 331                         cname = "ECDSA sign";
 332                         break;
 333
 334                 case TLS_CT_RSA_FIXED_ECDH:
 335                         cname = "RSA fixed ECDH";
 336                         break;
 337
 338                 case TLS_CT_ECDSA_FIXED_ECDH:
 339                         cname = "ECDSA fixed ECDH";
 340                         break;
 341
 342                 case TLS_CT_GOST94_SIGN:
 343                         cname = "GOST94 Sign";
 344                         break;
 345
 346                 case TLS_CT_GOST01_SIGN:
 347                         cname = "GOST01 Sign";
 348                         break;
 349
 350                 default:
 351                          cname = NULL;
 352                         }
 353
 354                 if (i)
 355                         BIO_puts(bio, ", ");
 356
 357                 if (cname)
 358                         BIO_puts(bio, cname);
 359                 else
 360                         BIO_printf(bio, "UNKNOWN (%d),", cert_type);
 361                 }
 362         BIO_puts(bio, "\n");
 363         }
 364
 365 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
 366         {
 367         int i, nsig, client;
 368         client = SSL_is_server(s) ? 0 : 1;
 369         if (shared)
 370                 nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL,
 371                                                         NULL, NULL);
 372         else
 373                 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
 374         if (nsig == 0)
 375                 return 1;
 376
 377         if (shared)
 378                 BIO_puts(out, "Shared ");
 379
 380         if (client)
 381                 BIO_puts(out, "Requested ");
 382         BIO_puts(out, "Signature Algorithms: ");
 383         for (i = 0; i < nsig; i++)
 384                 {
 385                 int hash_nid, sign_nid;
 386                 unsigned char rhash, rsign;
 387                 const char *sstr = NULL;
 388                 if (shared)
 389                         SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
 390                                                         &rsign, &rhash);
 391                 else
 392                         SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
 393                                                         &rsign, &rhash);
 394                 if (i)
 395                         BIO_puts(out, ":");
 396                 if (sign_nid == EVP_PKEY_RSA)
 397                         sstr = "RSA";
 398                 else if(sign_nid == EVP_PKEY_DSA)
 399                         sstr = "DSA";
 400                 else if(sign_nid == EVP_PKEY_EC)
 401                         sstr = "ECDSA";
 402                 if (sstr)
 403                         BIO_printf(out,"%s+", sstr);
 404                 else
 405                         BIO_printf(out,"0x%02X+", (int)rsign);
 406                 if (hash_nid != NID_undef)
 407                         BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
 408                 else
 409                         BIO_printf(out,"0x%02X", (int)rhash);
 410                 }
 411         BIO_puts(out, "\n");
 412         return 1;
 413         }
 414
 415 int ssl_print_sigalgs(BIO *out, SSL *s)
 416         {
 417         int mdnid;
 418         if (!SSL_is_server(s))
 419                 ssl_print_client_cert_types(out, s);
 420         do_print_sigalgs(out, s, 0);
 421         do_print_sigalgs(out, s, 1);
 422         if (SSL_get_peer_signature_nid(s, &mdnid))
 423                 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
 424         return 1;
 425         }
 426
 427 int ssl_print_curves(BIO *out, SSL *s, int noshared)
 428         {
 429         int i, ncurves, *curves, nid;
 430         const char *cname;
 431         ncurves = SSL_get1_curves(s, NULL);
 432         if (ncurves <= 0)
 433                 return 1;
 434         curves = OPENSSL_malloc(ncurves * sizeof(int));
 435         SSL_get1_curves(s, curves);
 436
 437         BIO_puts(out, "Supported Elliptic Curves: ");
 438         for (i = 0; i < ncurves; i++)
 439                 {
 440                 if (i)
 441                         BIO_puts(out, ":");
 442                 nid = curves[i];
 443                 /* If unrecognised print out hex version */
 444                 if (nid & TLSEXT_nid_unknown)
 445                         BIO_printf(out, "0x%04X", nid & 0xFFFF);
 446                 else
 447                         {
 448                         /* Use NIST name for curve if it exists */
 449                         cname = EC_curve_nid2nist(nid);
 450                         if (!cname)
 451                                 cname = OBJ_nid2sn(nid);
 452                         BIO_printf(out, "%s", cname);
 453                         }
 454                 }
 455         if (ncurves == 0)
 456                 BIO_puts(out, "NONE");
 457         if (noshared)
 458                 {
 459                 BIO_puts(out, "\n");
 460                 return 1;
 461                 }
 462         BIO_puts(out, "\nShared Elliptic curves: ");
 463         OPENSSL_free(curves);
 464         ncurves = SSL_get_shared_curve(s, -1);
 465         for (i = 0; i < ncurves; i++)
 466                 {
 467                 if (i)
 468                         BIO_puts(out, ":");
 469                 nid = SSL_get_shared_curve(s, i);
 470                 cname = EC_curve_nid2nist(nid);
 471                 if (!cname)
 472                         cname = OBJ_nid2sn(nid);
 473                 BIO_printf(out, "%s", cname);
 474                 }
 475         if (ncurves == 0)
 476                 BIO_puts(out, "NONE");
 477         BIO_puts(out, "\n");
 478         return 1;
 479         }
 480
 481 int ssl_print_tmp_key(BIO *out, SSL *s)
 482         {
 483         EVP_PKEY *key;
 484         if (!SSL_get_server_tmp_key(s, &key))
 485                 return 1;
 486         BIO_puts(out, "Server Temp Key: ");
 487         switch (EVP_PKEY_id(key))
 488                 {
 489         case EVP_PKEY_RSA:
 490                 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
 491                 break;
 492
 493         case EVP_PKEY_DH:
 494                 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
 495                 break;
 496
 497         case EVP_PKEY_EC:
 498                         {
 499                         EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
 500                         int nid;
 501                         const char *cname;
 502                         nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
 503                         EC_KEY_free(ec);
 504                         cname = EC_curve_nid2nist(nid);
 505                         if (!cname)
 506                                 cname = OBJ_nid2sn(nid);
 507                         BIO_printf(out, "ECDH, %s, %d bits\n",
 508                                                 cname, EVP_PKEY_bits(key));
 509                         }
 510                 }
 511         EVP_PKEY_free(key);
 512         return 1;
 513         }
 514
 515
 516 long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp,
 517                                    int argi, long argl, long ret)
 518         {
 519         BIO *out;
 520
 521         out=(BIO *)BIO_get_callback_arg(bio);
 522         if (out == NULL) return(ret);
 523
 524         if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
 525                 {
 526                 BIO_printf(out,"read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
 527                         (void *)bio,argp,(unsigned long)argi,ret,ret);
 528                 BIO_dump(out,argp,(int)ret);
 529                 return(ret);
 530                 }
 531         else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
 532                 {
 533                 BIO_printf(out,"write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
 534                         (void *)bio,argp,(unsigned long)argi,ret,ret);
 535                 BIO_dump(out,argp,(int)ret);
 536                 }
 537         return(ret);
 538         }
 539
 540 void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret)
 541         {
 542         const char *str;
 543         int w;
 544
 545         w=where& ~SSL_ST_MASK;
 546
 547         if (w & SSL_ST_CONNECT) str="SSL_connect";
 548         else if (w & SSL_ST_ACCEPT) str="SSL_accept";
 549         else str="undefined";
 550
 551         if (where & SSL_CB_LOOP)
 552                 {
 553                 BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s));
 554                 }
 555         else if (where & SSL_CB_ALERT)
 556                 {
 557                 str=(where & SSL_CB_READ)?"read":"write";
 558                 BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n",
 559                         str,
 560                         SSL_alert_type_string_long(ret),
 561                         SSL_alert_desc_string_long(ret));
 562                 }
 563         else if (where & SSL_CB_EXIT)
 564                 {
 565                 if (ret == 0)
 566                         BIO_printf(bio_err,"%s:failed in %s\n",
 567                                 str,SSL_state_string_long(s));
 568                 else if (ret < 0)
 569                         {
 570                         BIO_printf(bio_err,"%s:error in %s\n",
 571                                 str,SSL_state_string_long(s));
 572                         }
 573                 }
 574         }
 575
 576
 577 void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
 578         {
 579         BIO *bio = arg;
 580         const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= "";
 581
 582         str_write_p = write_p ? ">>>" : "<<<";
 583
 584         switch (version)
 585                 {
 586         case SSL2_VERSION:
 587                 str_version = "SSL 2.0";
 588                 break;
 589         case SSL3_VERSION:
 590                 str_version = "SSL 3.0 ";
 591                 break;
 592         case TLS1_VERSION:
 593                 str_version = "TLS 1.0 ";
 594                 break;
 595         case TLS1_1_VERSION:
 596                 str_version = "TLS 1.1 ";
 597                 break;
 598         case TLS1_2_VERSION:
 599                 str_version = "TLS 1.2 ";
 600                 break;
 601         case DTLS1_VERSION:
 602                 str_version = "DTLS 1.0 ";
 603                 break;
 604         case DTLS1_BAD_VER:
 605                 str_version = "DTLS 1.0 (bad) ";
 606                 break;
 607         default:
 608                 str_version = "???";
 609                 }
 610
 611         if (version == SSL2_VERSION)
 612                 {
 613                 str_details1 = "???";
 614
 615                 if (len > 0)
 616                         {
 617                         switch (((const unsigned char*)buf)[0])
 618                                 {
 619                                 case 0:
 620                                         str_details1 = ", ERROR:";
 621                                         str_details2 = " ???";
 622                                         if (len >= 3)
 623                                                 {
 624                                                 unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2];
 625
 626                                                 switch (err)
 627                                                         {
 628                                                 case 0x0001:
 629                                                         str_details2 = " NO-CIPHER-ERROR";
 630                                                         break;
 631                                                 case 0x0002:
 632                                                         str_details2 = " NO-CERTIFICATE-ERROR";
 633                                                         break;
 634                                                 case 0x0004:
 635                                                         str_details2 = " BAD-CERTIFICATE-ERROR";
 636                                                         break;
 637                                                 case 0x0006:
 638                                                         str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
 639                                                         break;
 640                                                         }
 641                                                 }
 642
 643                                         break;
 644                                 case 1:
 645                                         str_details1 = ", CLIENT-HELLO";
 646                                         break;
 647                                 case 2:
 648                                         str_details1 = ", CLIENT-MASTER-KEY";
 649                                         break;
 650                                 case 3:
 651                                         str_details1 = ", CLIENT-FINISHED";
 652                                         break;
 653                                 case 4:
 654                                         str_details1 = ", SERVER-HELLO";
 655                                         break;
 656                                 case 5:
 657                                         str_details1 = ", SERVER-VERIFY";
 658                                         break;
 659                                 case 6:
 660                                         str_details1 = ", SERVER-FINISHED";
 661                                         break;
 662                                 case 7:
 663                                         str_details1 = ", REQUEST-CERTIFICATE";
 664                                         break;
 665                                 case 8:
 666                                         str_details1 = ", CLIENT-CERTIFICATE";
 667                                         break;
 668                                 }
 669                         }
 670                 }
 671
 672         if (version == SSL3_VERSION ||
 673             version == TLS1_VERSION ||
 674             version == TLS1_1_VERSION ||
 675             version == TLS1_2_VERSION ||
 676             version == DTLS1_VERSION ||
 677             version == DTLS1_BAD_VER)
 678                 {
 679                 switch (content_type)
 680                         {
 681                 case 20:
 682                         str_content_type = "ChangeCipherSpec";
 683                         break;
 684                 case 21:
 685                         str_content_type = "Alert";
 686                         break;
 687                 case 22:
 688                         str_content_type = "Handshake";
 689                         break;
 690                         }
 691
 692                 if (content_type == 21) /* Alert */
 693                         {
 694                         str_details1 = ", ???";
 695
 696                         if (len == 2)
 697                                 {
 698                                 switch (((const unsigned char*)buf)[0])
 699                                         {
 700                                 case 1:
 701                                         str_details1 = ", warning";
 702                                         break;
 703                                 case 2:
 704                                         str_details1 = ", fatal";
 705                                         break;
 706                                         }
 707
 708                                 str_details2 = " ???";
 709                                 switch (((const unsigned char*)buf)[1])
 710                                         {
 711                                 case 0:
 712                                         str_details2 = " close_notify";
 713                                         break;
 714                                 case 10:
 715                                         str_details2 = " unexpected_message";
 716                                         break;
 717                                 case 20:
 718                                         str_details2 = " bad_record_mac";
 719                                         break;
 720                                 case 21:
 721                                         str_details2 = " decryption_failed";
 722                                         break;
 723                                 case 22:
 724                                         str_details2 = " record_overflow";
 725                                         break;
 726                                 case 30:
 727                                         str_details2 = " decompression_failure";
 728                                         break;
 729                                 case 40:
 730                                         str_details2 = " handshake_failure";
 731                                         break;
 732                                 case 42:
 733                                         str_details2 = " bad_certificate";
 734                                         break;
 735                                 case 43:
 736                                         str_details2 = " unsupported_certificate";
 737                                         break;
 738                                 case 44:
 739                                         str_details2 = " certificate_revoked";
 740                                         break;
 741                                 case 45:
 742                                         str_details2 = " certificate_expired";
 743                                         break;
 744                                 case 46:
 745                                         str_details2 = " certificate_unknown";
 746                                         break;
 747                                 case 47:
 748                                         str_details2 = " illegal_parameter";
 749                                         break;
 750                                 case 48:
 751                                         str_details2 = " unknown_ca";
 752                                         break;
 753                                 case 49:
 754                                         str_details2 = " access_denied";
 755                                         break;
 756                                 case 50:
 757                                         str_details2 = " decode_error";
 758                                         break;
 759                                 case 51:
 760                                         str_details2 = " decrypt_error";
 761                                         break;
 762                                 case 60:
 763                                         str_details2 = " export_restriction";
 764                                         break;
 765                                 case 70:
 766                                         str_details2 = " protocol_version";
 767                                         break;
 768                                 case 71:
 769                                         str_details2 = " insufficient_security";
 770                                         break;
 771                                 case 80:
 772                                         str_details2 = " internal_error";
 773                                         break;
 774                                 case 90:
 775                                         str_details2 = " user_canceled";
 776                                         break;
 777                                 case 100:
 778                                         str_details2 = " no_renegotiation";
 779                                         break;
 780                                 case 110:
 781                                         str_details2 = " unsupported_extension";
 782                                         break;
 783                                 case 111:
 784                                         str_details2 = " certificate_unobtainable";
 785                                         break;
 786                                 case 112:
 787                                         str_details2 = " unrecognized_name";
 788                                         break;
 789                                 case 113:
 790                                         str_details2 = " bad_certificate_status_response";
 791                                         break;
 792                                 case 114:
 793                                         str_details2 = " bad_certificate_hash_value";
 794                                         break;
 795                                 case 115:
 796                                         str_details2 = " unknown_psk_identity";
 797                                         break;
 798                                         }
 799                                 }
 800                         }
 801
 802                 if (content_type == 22) /* Handshake */
 803                         {
 804                         str_details1 = "???";
 805
 806                         if (len > 0)
 807                                 {
 808                                 switch (((const unsigned char*)buf)[0])
 809                                         {
 810                                 case 0:
 811                                         str_details1 = ", HelloRequest";
 812                                         break;
 813                                 case 1:
 814                                         str_details1 = ", ClientHello";
 815                                         break;
 816                                 case 2:
 817                                         str_details1 = ", ServerHello";
 818                                         break;
 819                                 case 3:
 820                                         str_details1 = ", HelloVerifyRequest";
 821                                         break;
 822                                 case 11:
 823                                         str_details1 = ", Certificate";
 824                                         break;
 825                                 case 12:
 826                                         str_details1 = ", ServerKeyExchange";
 827                                         break;
 828                                 case 13:
 829                                         str_details1 = ", CertificateRequest";
 830                                         break;
 831                                 case 14:
 832                                         str_details1 = ", ServerHelloDone";
 833                                         break;
 834                                 case 15:
 835                                         str_details1 = ", CertificateVerify";
 836                                         break;
 837                                 case 16:
 838                                         str_details1 = ", ClientKeyExchange";
 839                                         break;
 840                                 case 20:
 841                                         str_details1 = ", Finished";
 842                                         break;
 843                                         }
 844                                 }
 845                         }
 846
 847 #ifndef OPENSSL_NO_HEARTBEATS
 848                 if (content_type == 24) /* Heartbeat */
 849                         {
 850                         str_details1 = ", Heartbeat";
 851
 852                         if (len > 0)
 853                                 {
 854                                 switch (((const unsigned char*)buf)[0])
 855                                         {
 856                                 case 1:
 857                                         str_details1 = ", HeartbeatRequest";
 858                                         break;
 859                                 case 2:
 860                                         str_details1 = ", HeartbeatResponse";
 861                                         break;
 862                                         }
 863                                 }
 864                         }
 865 #endif
 866                 }
 867
 868         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);
 869
 870         if (len > 0)
 871                 {
 872                 size_t num, i;
 873
 874                 BIO_printf(bio, "   ");
 875                 num = len;
 876 #if 0
 877                 if (num > 16)
 878                         num = 16;
 879 #endif
 880                 for (i = 0; i < num; i++)
 881                         {
 882                         if (i % 16 == 0 && i > 0)
 883                                 BIO_printf(bio, "\n   ");
 884                         BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]);
 885                         }
 886                 if (i < len)
 887                         BIO_printf(bio, " ...");
 888                 BIO_printf(bio, "\n");
 889                 }
 890         (void)BIO_flush(bio);
 891         }
 892
 893 void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type,
 894                                         unsigned char *data, int len,
 895                                         void *arg)
 896         {
 897         BIO *bio = arg;
 898         char *extname;
 899
 900         switch(type)
 901                 {
 902                 case TLSEXT_TYPE_server_name:
 903                 extname = "server name";
 904                 break;
 905
 906                 case TLSEXT_TYPE_max_fragment_length:
 907                 extname = "max fragment length";
 908                 break;
 909
 910                 case TLSEXT_TYPE_client_certificate_url:
 911                 extname = "client certificate URL";
 912                 break;
 913
 914                 case TLSEXT_TYPE_trusted_ca_keys:
 915                 extname = "trusted CA keys";
 916                 break;
 917
 918                 case TLSEXT_TYPE_truncated_hmac:
 919                 extname = "truncated HMAC";
 920                 break;
 921
 922                 case TLSEXT_TYPE_status_request:
 923                 extname = "status request";
 924                 break;
 925
 926                 case TLSEXT_TYPE_user_mapping:
 927                 extname = "user mapping";
 928                 break;
 929
 930                 case TLSEXT_TYPE_client_authz:
 931                 extname = "client authz";
 932                 break;
 933
 934                 case TLSEXT_TYPE_server_authz:
 935                 extname = "server authz";
 936                 break;
 937
 938                 case TLSEXT_TYPE_cert_type:
 939                 extname = "cert type";
 940                 break;
 941
 942                 case TLSEXT_TYPE_elliptic_curves:
 943                 extname = "elliptic curves";
 944                 break;
 945
 946                 case TLSEXT_TYPE_ec_point_formats:
 947                 extname = "EC point formats";
 948                 break;
 949
 950                 case TLSEXT_TYPE_srp:
 951                 extname = "SRP";
 952                 break;
 953
 954                 case TLSEXT_TYPE_signature_algorithms:
 955                 extname = "signature algorithms";
 956                 break;
 957
 958                 case TLSEXT_TYPE_use_srtp:
 959                 extname = "use SRTP";
 960                 break;
 961
 962                 case TLSEXT_TYPE_heartbeat:
 963                 extname = "heartbeat";
 964                 break;
 965
 966                 case TLSEXT_TYPE_session_ticket:
 967                 extname = "session ticket";
 968                 break;
 969
 970                 case TLSEXT_TYPE_renegotiate:
 971                 extname = "renegotiation info";
 972                 break;
 973
 974 #ifdef TLSEXT_TYPE_opaque_prf_input
 975                 case TLSEXT_TYPE_opaque_prf_input:
 976                 extname = "opaque PRF input";
 977                 break;
 978 #endif
 979 #ifdef TLSEXT_TYPE_next_proto_neg
 980                 case TLSEXT_TYPE_next_proto_neg:
 981                 extname = "next protocol";
 982                 break;
 983 #endif
 984
 985                 default:
 986                 extname = "unknown";
 987                 break;
 988
 989                 }
 990
 991         BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
 992                         client_server ? "server": "client",
 993                         extname, type, len);
 994         BIO_dump(bio, (char *)data, len);
 995         (void)BIO_flush(bio);
 996         }
 997
 998 int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
 999         {
1000         unsigned char *buffer, result[EVP_MAX_MD_SIZE];
1001         unsigned int length, resultlength;
1002         union {
1003                 struct sockaddr sa;
1004                 struct sockaddr_in s4;
1005 #if OPENSSL_USE_IPV6
1006                 struct sockaddr_in6 s6;
1007 #endif
1008         } peer;
1009
1010         /* Initialize a random secret */
1011         if (!cookie_initialized)
1012                 {
1013                 if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH))
1014                         {
1015                         BIO_printf(bio_err,"error setting random cookie secret\n");
1016                         return 0;
1017                         }
1018                 cookie_initialized = 1;
1019                 }
1020
1021         /* Read peer information */
1022         (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
1023
1024         /* Create buffer with peer's address and port */
1025         length = 0;
1026         switch (peer.sa.sa_family)
1027                 {
1028         case AF_INET:
1029                 length += sizeof(struct in_addr);
1030                 length += sizeof(peer.s4.sin_port);
1031                 break;
1032 #if OPENSSL_USE_IPV6
1033         case AF_INET6:
1034                 length += sizeof(struct in6_addr);
1035                 length += sizeof(peer.s6.sin6_port);
1036                 break;
1037 #endif
1038         default:
1039                 OPENSSL_assert(0);
1040                 break;
1041                 }
1042         buffer = OPENSSL_malloc(length);
1043
1044         if (buffer == NULL)
1045                 {
1046                 BIO_printf(bio_err,"out of memory\n");
1047                 return 0;
1048                 }
1049
1050         switch (peer.sa.sa_family)
1051                 {
1052         case AF_INET:
1053                 memcpy(buffer,
1054                        &peer.s4.sin_port,
1055                        sizeof(peer.s4.sin_port));
1056                 memcpy(buffer + sizeof(peer.s4.sin_port),
1057                        &peer.s4.sin_addr,
1058                        sizeof(struct in_addr));
1059                 break;
1060 #if OPENSSL_USE_IPV6
1061         case AF_INET6:
1062                 memcpy(buffer,
1063                        &peer.s6.sin6_port,
1064                        sizeof(peer.s6.sin6_port));
1065                 memcpy(buffer + sizeof(peer.s6.sin6_port),
1066                        &peer.s6.sin6_addr,
1067                        sizeof(struct in6_addr));
1068                 break;
1069 #endif
1070         default:
1071                 OPENSSL_assert(0);
1072                 break;
1073                 }
1074
1075         /* Calculate HMAC of buffer using the secret */
1076         HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1077              buffer, length, result, &resultlength);
1078         OPENSSL_free(buffer);
1079
1080         memcpy(cookie, result, resultlength);
1081         *cookie_len = resultlength;
1082
1083         return 1;
1084         }
1085
1086 int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len)
1087         {
1088         unsigned char *buffer, result[EVP_MAX_MD_SIZE];
1089         unsigned int length, resultlength;
1090         union {
1091                 struct sockaddr sa;
1092                 struct sockaddr_in s4;
1093 #if OPENSSL_USE_IPV6
1094                 struct sockaddr_in6 s6;
1095 #endif
1096         } peer;
1097
1098         /* If secret isn't initialized yet, the cookie can't be valid */
1099         if (!cookie_initialized)
1100                 return 0;
1101
1102         /* Read peer information */
1103         (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
1104
1105         /* Create buffer with peer's address and port */
1106         length = 0;
1107         switch (peer.sa.sa_family)
1108                 {
1109         case AF_INET:
1110                 length += sizeof(struct in_addr);
1111                 length += sizeof(peer.s4.sin_port);
1112                 break;
1113 #if OPENSSL_USE_IPV6
1114         case AF_INET6:
1115                 length += sizeof(struct in6_addr);
1116                 length += sizeof(peer.s6.sin6_port);
1117                 break;
1118 #endif
1119         default:
1120                 OPENSSL_assert(0);
1121                 break;
1122                 }
1123         buffer = OPENSSL_malloc(length);
1124
1125         if (buffer == NULL)
1126                 {
1127                 BIO_printf(bio_err,"out of memory\n");
1128                 return 0;
1129                 }
1130
1131         switch (peer.sa.sa_family)
1132                 {
1133         case AF_INET:
1134                 memcpy(buffer,
1135                        &peer.s4.sin_port,
1136                        sizeof(peer.s4.sin_port));
1137                 memcpy(buffer + sizeof(peer.s4.sin_port),
1138                        &peer.s4.sin_addr,
1139                        sizeof(struct in_addr));
1140                 break;
1141 #if OPENSSL_USE_IPV6
1142         case AF_INET6:
1143                 memcpy(buffer,
1144                        &peer.s6.sin6_port,
1145                        sizeof(peer.s6.sin6_port));
1146                 memcpy(buffer + sizeof(peer.s6.sin6_port),
1147                        &peer.s6.sin6_addr,
1148                        sizeof(struct in6_addr));
1149                 break;
1150 #endif
1151         default:
1152                 OPENSSL_assert(0);
1153                 break;
1154                 }
1155
1156         /* Calculate HMAC of buffer using the secret */
1157         HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1158              buffer, length, result, &resultlength);
1159         OPENSSL_free(buffer);
1160
1161         if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0)
1162                 return 1;
1163
1164         return 0;
1165         }
1166
1167 /* Example of extended certificate handling. Where the standard support
1168  * of one certificate per algorithm is not sufficient an application
1169  * can decide which certificate(s) to use at runtime based on whatever
1170  * criteria it deems appropriate.
1171  */
1172
1173 /* Linked list of certificates, keys and chains */
1174 struct  ssl_excert_st
1175         {
1176         int certform;
1177         const char *certfile;
1178         int keyform;
1179         const char *keyfile;
1180         const char *chainfile;
1181         X509 *cert;
1182         EVP_PKEY *key;
1183         STACK_OF(X509) *chain;
1184         int build_chain;
1185         struct ssl_excert_st *next, *prev;
1186         };
1187
1188 struct chain_flags
1189         {
1190         int flag;
1191         const char *name;
1192         };
1193
1194 struct chain_flags chain_flags_list[] =
1195         {
1196                 {CERT_PKEY_VALID, "Overall Validity"},
1197                 {CERT_PKEY_SIGN,  "Sign with EE key"},
1198                 {CERT_PKEY_EE_SIGNATURE, "EE signature"},
1199                 {CERT_PKEY_CA_SIGNATURE, "CA signature"},
1200                 {CERT_PKEY_EE_PARAM, "EE key parameters"},
1201                 {CERT_PKEY_CA_PARAM, "CA key parameters"},
1202                 {CERT_PKEY_EXPLICIT_SIGN,  "Explicity sign with EE key"},
1203                 {CERT_PKEY_ISSUER_NAME,  "Issuer Name"},
1204                 {CERT_PKEY_CERT_TYPE,  "Certificate Type"},
1205                 {0, NULL}
1206         };
1207
1208
1209 static void print_chain_flags(BIO *out, int flags)
1210         {
1211         struct chain_flags *ctmp = chain_flags_list;
1212         while(ctmp->name)
1213                 {
1214                 BIO_printf(out, "\t%s: %s\n", ctmp->name,
1215                                 flags & ctmp->flag ? "OK" : "NOT OK");
1216                 ctmp++;
1217                 }
1218         }
1219
1220 /* Very basic selection callback: just use any certificate chain
1221  * reported as valid. More sophisticated could prioritise according
1222  * to local policy.
1223  */
1224 static int set_cert_cb(SSL *ssl, void *arg)
1225         {
1226         int i, rv;
1227         SSL_EXCERT *exc = arg;
1228         SSL_certs_clear(ssl);
1229
1230         if (!exc)
1231                 return 1;
1232
1233         /* Go to end of list and traverse backwards since we prepend
1234          * newer entries this retains the original order.
1235          */
1236         while (exc->next)
1237                 exc = exc->next;
1238
1239         i = 0;
1240
1241         while(exc)
1242                 {
1243                 i++;
1244                 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
1245                 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
1246                 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
1247                                                         XN_FLAG_ONELINE);
1248                 BIO_puts(bio_err, "\n");
1249
1250                 print_chain_flags(bio_err, rv);
1251                 if (rv & CERT_PKEY_VALID)
1252                         {
1253                         SSL_use_certificate(ssl, exc->cert);
1254                         SSL_use_PrivateKey(ssl, exc->key);
1255                         /* NB: we wouldn't normally do this as it is
1256                          * not efficient building chains on each connection
1257                          * better to cache the chain in advance.
1258                          */
1259                         if (exc->build_chain)
1260                                 {
1261                                 if (!SSL_build_cert_chain(ssl, 0))
1262                                         return 0;
1263                                 }
1264                         else if (exc->chain)
1265                                 SSL_set1_chain(ssl, exc->chain);
1266                         }
1267                 exc = exc->prev;
1268                 }
1269         return 1;
1270         }
1271
1272 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
1273         {
1274         SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
1275         }
1276
1277 static int ssl_excert_prepend(SSL_EXCERT **pexc)
1278         {
1279         SSL_EXCERT *exc;
1280         exc = OPENSSL_malloc(sizeof(SSL_EXCERT));
1281         if (!exc)
1282                 return 0;
1283         exc->certfile = NULL;
1284         exc->keyfile = NULL;
1285         exc->chainfile = NULL;
1286         exc->cert = NULL;
1287         exc->key = NULL;
1288         exc->chain = NULL;
1289         exc->prev = NULL;
1290         exc->build_chain = 0;
1291
1292         exc->next = *pexc;
1293         *pexc = exc;
1294
1295         if (exc->next)
1296                 {
1297                 exc->certform = exc->next->certform;
1298                 exc->keyform = exc->next->keyform;
1299                 exc->next->prev = exc;
1300                 }
1301         else
1302                 {
1303                 exc->certform = FORMAT_PEM;
1304                 exc->keyform = FORMAT_PEM;
1305                 }
1306         return 1;
1307
1308         }
1309
1310 void ssl_excert_free(SSL_EXCERT *exc)
1311         {
1312         SSL_EXCERT *curr;
1313         while (exc)
1314                 {
1315                 if (exc->cert)
1316                         X509_free(exc->cert);
1317                 if (exc->key)
1318                         EVP_PKEY_free(exc->key);
1319                 if (exc->chain)
1320                         sk_X509_pop_free(exc->chain, X509_free);
1321                 curr = exc;
1322                 exc = exc->next;
1323                 OPENSSL_free(curr);
1324                 }
1325         }
1326
1327 int load_excert(SSL_EXCERT **pexc, BIO *err)
1328         {
1329         SSL_EXCERT *exc = *pexc;
1330         if (!exc)
1331                 return 1;
1332         /* If nothing in list, free and set to NULL */
1333         if (!exc->certfile && !exc->next)
1334                 {
1335                 ssl_excert_free(exc);
1336                 *pexc = NULL;
1337                 return 1;
1338                 }
1339         for(; exc; exc=exc->next)
1340                 {
1341                 if (!exc->certfile)
1342                         {
1343                         BIO_printf(err, "Missing filename\n");
1344                         return 0;
1345                         }
1346                 exc->cert = load_cert(err, exc->certfile, exc->certform,
1347                                         NULL, NULL, "Server Certificate");
1348                 if (!exc->cert)
1349                         return 0;
1350                 if (exc->keyfile)
1351                         exc->keyfile = exc->certfile;
1352                 exc->key = load_key(err, exc->certfile, exc->certform, 0,
1353                                         NULL, NULL, "Server Certificate");
1354                 if (!exc->key)
1355                         return 0;
1356                 if (exc->chainfile)
1357                         {
1358                         exc->chain = load_certs(err,
1359                                                 exc->chainfile, FORMAT_PEM,
1360                                                 NULL, NULL,
1361                                                 "Server Chain");
1362                         if (!exc->chainfile)
1363                                 return 0;
1364                         }
1365                 }
1366         return 1;
1367         }
1368
1369
1370 int args_excert(char ***pargs, int *pargc,
1371                         int *badarg, BIO *err, SSL_EXCERT **pexc)
1372         {
1373         char *arg = **pargs, *argn = (*pargs)[1];
1374         SSL_EXCERT *exc = *pexc;
1375         int narg = 2;
1376         if (!exc)
1377                 {
1378                 if (ssl_excert_prepend(&exc))
1379                         *pexc = exc;
1380                 else
1381                         {
1382                         BIO_printf(err, "Error initialising xcert\n");
1383                         *badarg = 1;
1384                         goto err;
1385                         }
1386                 }
1387         if (strcmp(arg, "-xcert") == 0)
1388                 {
1389                 if (!argn)
1390                         {
1391                         *badarg = 1;
1392                         return 1;
1393                         }
1394                 if (exc->certfile && !ssl_excert_prepend(&exc))
1395                         {
1396                         BIO_printf(err, "Error adding xcert\n");
1397                         *badarg = 1;
1398                         goto err;
1399                         }
1400                 exc->certfile = argn;
1401                 }
1402         else if (strcmp(arg,"-xkey") == 0)
1403                 {
1404                 if (!argn)
1405                         {
1406                         *badarg = 1;
1407                         return 1;
1408                         }
1409                 if (exc->keyfile)
1410                         {
1411                         BIO_printf(err, "Key already specified\n");
1412                         *badarg = 1;
1413                         return 1;
1414                         }
1415                 exc->keyfile = argn;
1416                 }
1417         else if (strcmp(arg,"-xchain") == 0)
1418                 {
1419                 if (!argn)
1420                         {
1421                         *badarg = 1;
1422                         return 1;
1423                         }
1424                 if (exc->chainfile)
1425                         {
1426                         BIO_printf(err, "Chain already specified\n");
1427                         *badarg = 1;
1428                         return 1;
1429                         }
1430                 exc->chainfile = argn;
1431                 }
1432         else if (strcmp(arg,"-xchain_build") == 0)
1433                 {
1434                 narg = 1;
1435                 exc->build_chain = 1;
1436                 }
1437         else if (strcmp(arg,"-xcertform") == 0)
1438                 {
1439                 if (!argn)
1440                         {
1441                         *badarg = 1;
1442                         goto err;
1443                         }
1444                 exc->certform = str2fmt(argn);
1445                 }
1446         else if (strcmp(arg,"-xkeyform") == 0)
1447                 {
1448                 if (!argn)
1449                         {
1450                         *badarg = 1;
1451                         goto err;
1452                         }
1453                 exc->keyform = str2fmt(argn);
1454                 }
1455         else
1456                 return 0;
1457
1458         (*pargs) += narg;
1459
1460         if (pargc)
1461                 *pargc -= narg;
1462
1463         *pexc = exc;
1464
1465         return 1;
1466
1467         err:
1468         ERR_print_errors(err);
1469         ssl_excert_free(exc);
1470         *pexc = NULL;
1471         return 1;
1472         }
1473
1474 static void print_raw_cipherlist(BIO *bio, SSL *s)
1475         {
1476         const unsigned char *rlist;
1477         static const unsigned char scsv_id[] = {0, 0, 0xFF};
1478         size_t i, rlistlen, num;
1479         if (!SSL_is_server(s))
1480                 return;
1481         num = SSL_get0_raw_cipherlist(s, NULL);
1482         rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
1483         BIO_puts(bio, "Client cipher list: ");
1484         for (i = 0; i < rlistlen; i += num, rlist += num)
1485                 {
1486                 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
1487                 if (i)
1488                         BIO_puts(bio, ":");
1489                 if (c)
1490                         BIO_puts(bio, SSL_CIPHER_get_name(c));
1491                 else if (!memcmp(rlist, scsv_id - num + 3, num))
1492                         BIO_puts(bio, "SCSV");
1493                 else
1494                         {
1495                         size_t j;
1496                         BIO_puts(bio, "0x");
1497                         for (j = 0; j < num; j++)
1498                                 BIO_printf(bio, "%02X", rlist[j]);
1499                         }
1500                 }
1501         BIO_puts(bio, "\n");
1502         }
1503
1504
1505 void print_ssl_summary(BIO *bio, SSL *s)
1506         {
1507         const SSL_CIPHER *c;
1508         X509 *peer;
1509         /*const char *pnam = SSL_is_server(s) ? "client" : "server";*/
1510         BIO_printf(bio, "Protocol version: %s\n", SSL_get_version(s));
1511         print_raw_cipherlist(bio, s);
1512         c = SSL_get_current_cipher(s);
1513         BIO_printf(bio,"Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1514         do_print_sigalgs(bio, s, 0);
1515         peer = SSL_get_peer_certificate(s);
1516         if (peer)
1517                 {
1518                 int nid;
1519                 BIO_puts(bio, "Peer certificate: ");
1520                 X509_NAME_print_ex(bio, X509_get_subject_name(peer),
1521                                         0, XN_FLAG_ONELINE);
1522                 BIO_puts(bio, "\n");
1523                 if (SSL_get_peer_signature_nid(s, &nid))
1524                         BIO_printf(bio, "Hash used: %s\n", OBJ_nid2sn(nid));
1525                 }
1526         else
1527                 BIO_puts(bio, "No peer certificate\n");
1528         if (peer)
1529                 X509_free(peer);
1530         if (SSL_is_server(s))
1531                 ssl_print_curves(bio, s, 1);
1532         else
1533                 ssl_print_tmp_key(bio, s);
1534         }
1535
1536 void print_ssl_cert_checks(BIO *bio, SSL *s,
1537                                 const unsigned char *checkhost,
1538                                 const unsigned char *checkemail,
1539                                 const char *checkip)
1540         {
1541         X509 *peer;
1542         peer = SSL_get_peer_certificate(s);
1543         if (peer)
1544                 {
1545                 print_cert_checks(bio, peer, checkhost, checkemail, checkip);
1546                 X509_free(peer);
1547                 }
1548         }