src/common.c

   1 /*
   2  * Copyright (C) 2000-2012 Free Software Foundation, Inc.
   3  * Author: Nikos Mavrogiannopoulos
   4  *
   5  * This file is part of GnuTLS.
   6  *
   7  * GnuTLS is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation, either version 3 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * GnuTLS is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <config.h>
  22
  23 /* Work around problem reported in
  24    <http://permalink.gmane.org/gmane.comp.lib.gnulib.bugs/15755>.*/
  25 #if GETTIMEOFDAY_CLOBBERS_LOCALTIME
  26 #undef localtime
  27 #endif
  28
  29 #include <getpass.h>
  30
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34 #include <gnutls/gnutls.h>
  35 #include <gnutls/x509.h>
  36 #include <gnutls/openpgp.h>
  37 #include <time.h>
  38 #include <common.h>
  39
  40 #define SU(x) (x!=NULL?x:"Unknown")
  41
  42 extern int verbose;
  43
  44 const char str_unknown[] = "(unknown)";
  45
  46 /* Hex encodes the given data.
  47  */
  48 const char *
  49 raw_to_string (const unsigned char *raw, size_t raw_size)
  50 {
  51     static char buf[1024];
  52     size_t i;
  53     if (raw_size == 0)
  54         return NULL;
  55
  56     if (raw_size * 3 + 1 >= sizeof (buf))
  57         return NULL;
  58
  59     for (i = 0; i < raw_size; i++)
  60       {
  61           sprintf (&(buf[i * 3]), "%02X%s", raw[i],
  62                    (i == raw_size - 1) ? "" : ":");
  63       }
  64     buf[sizeof (buf) - 1] = '\0';
  65
  66     return buf;
  67 }
  68
  69 static void
  70 print_x509_info_compact (gnutls_session_t session)
  71 {
  72     gnutls_x509_crt_t crt;
  73     const gnutls_datum_t *cert_list;
  74     unsigned int cert_list_size = 0;
  75     int ret;
  76     gnutls_datum_t cinfo;
  77
  78     cert_list = gnutls_certificate_get_peers (session, &cert_list_size);
  79     if (cert_list_size == 0)
  80       {
  81           fprintf (stderr, "No certificates found!\n");
  82           return;
  83       }
  84
  85     gnutls_x509_crt_init (&crt);
  86     ret =
  87           gnutls_x509_crt_import (crt, &cert_list[0],
  88                                   GNUTLS_X509_FMT_DER);
  89     if (ret < 0)
  90       {
  91         fprintf (stderr, "Decoding error: %s\n",
  92                  gnutls_strerror (ret));
  93         return;
  94       }
  95
  96     ret =
  97       gnutls_x509_crt_print (crt, GNUTLS_CRT_PRINT_COMPACT, &cinfo);
  98     if (ret == 0)
  99       {
 100         printf ("- X.509 cert: %s\n", cinfo.data);
 101         gnutls_free (cinfo.data);
 102       }
 103
 104     gnutls_x509_crt_deinit (crt);
 105 }
 106
 107 static void
 108 print_x509_info (gnutls_session_t session, int flag, int print_cert)
 109 {
 110     gnutls_x509_crt_t crt;
 111     const gnutls_datum_t *cert_list;
 112     unsigned int cert_list_size = 0, j;
 113     int ret;
 114
 115     cert_list = gnutls_certificate_get_peers (session, &cert_list_size);
 116     if (cert_list_size == 0)
 117       {
 118           fprintf (stderr, "No certificates found!\n");
 119           return;
 120       }
 121
 122     printf ("- Certificate type: X.509\n");
 123     printf ("- Got a certificate list of %d certificates.\n",
 124             cert_list_size);
 125
 126     for (j = 0; j < cert_list_size; j++)
 127       {
 128           gnutls_datum_t cinfo;
 129
 130           gnutls_x509_crt_init (&crt);
 131           ret =
 132               gnutls_x509_crt_import (crt, &cert_list[j],
 133                                       GNUTLS_X509_FMT_DER);
 134           if (ret < 0)
 135             {
 136                 fprintf (stderr, "Decoding error: %s\n",
 137                          gnutls_strerror (ret));
 138                 return;
 139             }
 140
 141           printf ("- Certificate[%d] info:\n - ", j);
 142
 143           ret =
 144             gnutls_x509_crt_print (crt, flag, &cinfo);
 145           if (ret == 0)
 146             {
 147                 printf ("%s\n", cinfo.data);
 148                 gnutls_free (cinfo.data);
 149             }
 150
 151           if (print_cert)
 152             {
 153                 size_t size = 0;
 154                 char *p = NULL;
 155
 156                 ret =
 157                     gnutls_x509_crt_export (crt, GNUTLS_X509_FMT_PEM, p,
 158                                             &size);
 159                 if (ret == GNUTLS_E_SHORT_MEMORY_BUFFER)
 160                   {
 161                       p = malloc (size);
 162                       if (!p)
 163                         {
 164                             fprintf (stderr, "gnutls_malloc\n");
 165                             exit (1);
 166                         }
 167
 168                       ret =
 169                           gnutls_x509_crt_export (crt, GNUTLS_X509_FMT_PEM,
 170                                                   p, &size);
 171                   }
 172                 if (ret < 0)
 173                   {
 174                       fprintf (stderr, "Encoding error: %s\n",
 175                                gnutls_strerror (ret));
 176                       return;
 177                   }
 178
 179                 fputs ("\n", stdout);
 180                 fputs (p, stdout);
 181                 fputs ("\n", stdout);
 182
 183                 gnutls_free (p);
 184             }
 185
 186           gnutls_x509_crt_deinit (crt);
 187       }
 188 }
 189
 190 /* returns true or false, depending on whether the hostname
 191  * matches to certificate */
 192 static int
 193 verify_x509_hostname (gnutls_session_t session, const char *hostname)
 194 {
 195   gnutls_x509_crt_t crt;
 196   const gnutls_datum_t *cert_list;
 197   unsigned int cert_list_size = 0;
 198   int ret;
 199
 200   cert_list = gnutls_certificate_get_peers (session, &cert_list_size);
 201   if (cert_list_size == 0)
 202     {
 203       fprintf (stderr, "No certificates found!\n");
 204       return 0;
 205     }
 206
 207   gnutls_x509_crt_init (&crt);
 208   ret =
 209       gnutls_x509_crt_import (crt, &cert_list[0],
 210                               GNUTLS_X509_FMT_DER);
 211   if (ret < 0)
 212     {
 213       fprintf (stderr, "Decoding error: %s\n",
 214                gnutls_strerror (ret));
 215       return 0;
 216     }
 217
 218   /* Check the hostname of the first certificate if it matches
 219    * the name of the host we connected to.
 220    */
 221   if (hostname != NULL)
 222     {
 223       if (gnutls_x509_crt_check_hostname (crt, hostname) == 0)
 224         {
 225           printf
 226              ("- The hostname in the certificate does NOT match '%s'\n",
 227               hostname);
 228           ret = 0;
 229         }
 230       else
 231         {
 232           printf ("- The hostname in the certificate matches '%s'.\n",
 233                   hostname);
 234           ret = 1;
 235         }
 236     }
 237
 238   gnutls_x509_crt_deinit (crt);
 239
 240   return ret;
 241 }
 242
 243 #ifdef ENABLE_OPENPGP
 244 /* returns true or false, depending on whether the hostname
 245  * matches to certificate */
 246 static int
 247 verify_openpgp_hostname (gnutls_session_t session, const char *hostname)
 248 {
 249   gnutls_openpgp_crt_t crt;
 250   const gnutls_datum_t *cert_list;
 251   unsigned int cert_list_size = 0;
 252   int ret;
 253
 254   cert_list = gnutls_certificate_get_peers (session, &cert_list_size);
 255   if (cert_list_size == 0)
 256     {
 257       fprintf (stderr, "No certificates found!\n");
 258       return 0;
 259     }
 260
 261   gnutls_openpgp_crt_init (&crt);
 262   ret =
 263       gnutls_openpgp_crt_import (crt, &cert_list[0],
 264                               GNUTLS_OPENPGP_FMT_RAW);
 265   if (ret < 0)
 266     {
 267       fprintf (stderr, "Decoding error: %s\n",
 268                gnutls_strerror (ret));
 269       return 0;
 270     }
 271
 272   /* Check the hostname of the first certificate if it matches
 273    * the name of the host we connected to.
 274    */
 275   if (gnutls_openpgp_crt_check_hostname (crt, hostname) == 0)
 276     {
 277       printf
 278              ("- The hostname in the certificate does NOT match '%s'\n",
 279               hostname);
 280       ret = 0;
 281     }
 282   else
 283     {
 284       printf ("- The hostname in the certificate matches '%s'.\n",
 285               hostname);
 286       ret = 1;
 287     }
 288
 289   gnutls_openpgp_crt_deinit (crt);
 290
 291   return ret;
 292 }
 293
 294 static void
 295 print_openpgp_info_compact (gnutls_session_t session)
 296 {
 297
 298     gnutls_openpgp_crt_t crt;
 299     const gnutls_datum_t *cert_list;
 300     unsigned int cert_list_size = 0;
 301     int ret;
 302
 303     cert_list = gnutls_certificate_get_peers (session, &cert_list_size);
 304
 305     if (cert_list_size > 0)
 306       {
 307           gnutls_datum_t cinfo;
 308
 309           gnutls_openpgp_crt_init (&crt);
 310           ret = gnutls_openpgp_crt_import (crt, &cert_list[0],
 311                                            GNUTLS_OPENPGP_FMT_RAW);
 312           if (ret < 0)
 313             {
 314                 fprintf (stderr, "Decoding error: %s\n",
 315                          gnutls_strerror (ret));
 316                 return;
 317             }
 318
 319           ret =
 320               gnutls_openpgp_crt_print (crt, GNUTLS_CRT_PRINT_COMPACT, &cinfo);
 321           if (ret == 0)
 322             {
 323                 printf ("- OpenPGP cert: %s\n", cinfo.data);
 324                 gnutls_free (cinfo.data);
 325             }
 326
 327           gnutls_openpgp_crt_deinit (crt);
 328       }
 329 }
 330
 331 static void
 332 print_openpgp_info (gnutls_session_t session, int flag, int print_cert)
 333 {
 334
 335     gnutls_openpgp_crt_t crt;
 336     const gnutls_datum_t *cert_list;
 337     unsigned int cert_list_size = 0;
 338     int ret;
 339
 340     printf ("- Certificate type: OpenPGP\n");
 341
 342     cert_list = gnutls_certificate_get_peers (session, &cert_list_size);
 343
 344     if (cert_list_size > 0)
 345       {
 346           gnutls_datum_t cinfo;
 347
 348           gnutls_openpgp_crt_init (&crt);
 349           ret = gnutls_openpgp_crt_import (crt, &cert_list[0],
 350                                            GNUTLS_OPENPGP_FMT_RAW);
 351           if (ret < 0)
 352             {
 353                 fprintf (stderr, "Decoding error: %s\n",
 354                          gnutls_strerror (ret));
 355                 return;
 356             }
 357
 358           ret =
 359               gnutls_openpgp_crt_print (crt, flag, &cinfo);
 360           if (ret == 0)
 361             {
 362                 printf ("- %s\n", cinfo.data);
 363                 gnutls_free (cinfo.data);
 364             }
 365
 366           if (print_cert)
 367             {
 368                 size_t size = 0;
 369                 char *p = NULL;
 370
 371                 ret =
 372                     gnutls_openpgp_crt_export (crt,
 373                                                GNUTLS_OPENPGP_FMT_BASE64,
 374                                                p, &size);
 375                 if (ret == GNUTLS_E_SHORT_MEMORY_BUFFER)
 376                   {
 377                       p = malloc (size);
 378                       if (!p)
 379                         {
 380                             fprintf (stderr, "gnutls_malloc\n");
 381                             exit (1);
 382                         }
 383
 384                       ret =
 385                           gnutls_openpgp_crt_export (crt,
 386                                                      GNUTLS_OPENPGP_FMT_BASE64,
 387                                                      p, &size);
 388                   }
 389                 if (ret < 0)
 390                   {
 391                       fprintf (stderr, "Encoding error: %s\n",
 392                                gnutls_strerror (ret));
 393                       return;
 394                   }
 395
 396                 fputs (p, stdout);
 397                 fputs ("\n", stdout);
 398
 399                 gnutls_free (p);
 400             }
 401
 402           gnutls_openpgp_crt_deinit (crt);
 403       }
 404 }
 405
 406 #endif
 407
 408 /* returns false (0) if not verified, or true (1) otherwise
 409  */
 410 int
 411 cert_verify (gnutls_session_t session, const char* hostname)
 412 {
 413     int rc;
 414     unsigned int status = 0;
 415     int type;
 416
 417     rc = gnutls_certificate_verify_peers2 (session, &status);
 418     if (rc == GNUTLS_E_NO_CERTIFICATE_FOUND)
 419       {
 420           printf ("- Peer did not send any certificate.\n");
 421           return 0;
 422       }
 423
 424     if (rc < 0)
 425       {
 426           printf ("- Could not verify certificate (err: %s)\n",
 427                   gnutls_strerror (rc));
 428           return 0;
 429       }
 430
 431     type = gnutls_certificate_type_get (session);
 432     if (type == GNUTLS_CRT_X509)
 433       {
 434
 435           if (status & GNUTLS_CERT_REVOKED)
 436               printf ("- Peer's certificate chain revoked\n");
 437           if (status & GNUTLS_CERT_SIGNER_NOT_FOUND)
 438               printf ("- Peer's certificate issuer is unknown\n");
 439           if (status & GNUTLS_CERT_SIGNER_NOT_CA)
 440               printf ("- Peer's certificate issuer is not a CA\n");
 441           if (status & GNUTLS_CERT_INSECURE_ALGORITHM)
 442               printf
 443                   ("- Peer's certificate chain uses insecure algorithm\n");
 444           if (status & GNUTLS_CERT_NOT_ACTIVATED)
 445               printf
 446                   ("- Peer's certificate chain uses not yet valid certificate\n");
 447           if (status & GNUTLS_CERT_EXPIRED)
 448               printf
 449                   ("- Peer's certificate chain uses expired certificate\n");
 450           if (status & GNUTLS_CERT_INVALID)
 451               printf ("- Peer's certificate is NOT trusted\n");
 452           else
 453               printf ("- Peer's certificate is trusted\n");
 454
 455           rc = verify_x509_hostname (session, hostname);
 456           if (rc == 0) status |= GNUTLS_CERT_INVALID;
 457       }
 458     else if (type == GNUTLS_CRT_OPENPGP)
 459       {
 460           if (status & GNUTLS_CERT_INVALID)
 461               printf ("- Peer's key is invalid\n");
 462           else
 463               printf ("- Peer's key is valid\n");
 464           if (status & GNUTLS_CERT_SIGNER_NOT_FOUND)
 465               printf ("- Could not find a signer of the peer's key\n");
 466
 467           rc = verify_openpgp_hostname (session, hostname);
 468           if (rc == 0) status |= GNUTLS_CERT_INVALID;
 469       }
 470     else
 471       {
 472         fprintf(stderr, "Unknown certificate type\n");
 473         status |= GNUTLS_CERT_INVALID;
 474       }
 475
 476     if (status)
 477       return 0;
 478
 479     return 1;
 480 }
 481
 482 static void
 483 print_dh_info (gnutls_session_t session, const char *str, int print)
 484 {
 485     printf ("- %sDiffie-Hellman parameters\n", str);
 486     printf (" - Using prime: %d bits\n",
 487             gnutls_dh_get_prime_bits (session));
 488     printf (" - Secret key: %d bits\n",
 489             gnutls_dh_get_secret_bits (session));
 490     printf (" - Peer's public key: %d bits\n",
 491             gnutls_dh_get_peers_public_bits (session));
 492
 493     if (print)
 494       {
 495           int ret;
 496           gnutls_datum_t raw_gen = { NULL, 0 };
 497           gnutls_datum_t raw_prime = { NULL, 0 };
 498           gnutls_dh_params_t dh_params = NULL;
 499           unsigned char *params_data = NULL;
 500           size_t params_data_size = 0;
 501
 502           ret = gnutls_dh_get_group (session, &raw_gen, &raw_prime);
 503           if (ret)
 504             {
 505                 fprintf (stderr, "gnutls_dh_get_group %d\n", ret);
 506                 goto out;
 507             }
 508
 509           ret = gnutls_dh_params_init (&dh_params);
 510           if (ret)
 511             {
 512                 fprintf (stderr, "gnutls_dh_params_init %d\n", ret);
 513                 goto out;
 514             }
 515
 516           ret =
 517               gnutls_dh_params_import_raw (dh_params, &raw_prime,
 518                                            &raw_gen);
 519           if (ret)
 520             {
 521                 fprintf (stderr, "gnutls_dh_params_import_raw %d\n", ret);
 522                 goto out;
 523             }
 524
 525           ret = gnutls_dh_params_export_pkcs3 (dh_params,
 526                                                GNUTLS_X509_FMT_PEM,
 527                                                params_data,
 528                                                &params_data_size);
 529           if (ret != GNUTLS_E_SHORT_MEMORY_BUFFER)
 530             {
 531                 fprintf (stderr, "gnutls_dh_params_export_pkcs3 %d\n",
 532                          ret);
 533                 goto out;
 534             }
 535
 536           params_data = gnutls_malloc (params_data_size);
 537           if (!params_data)
 538             {
 539                 fprintf (stderr, "gnutls_malloc %d\n", ret);
 540                 goto out;
 541             }
 542
 543           ret = gnutls_dh_params_export_pkcs3 (dh_params,
 544                                                GNUTLS_X509_FMT_PEM,
 545                                                params_data,
 546                                                &params_data_size);
 547           if (ret)
 548             {
 549                 fprintf (stderr, "gnutls_dh_params_export_pkcs3-2 %d\n",
 550                          ret);
 551                 goto out;
 552             }
 553
 554           printf (" - PKCS#3 format:\n\n%.*s\n", (int) params_data_size,
 555                   params_data);
 556
 557         out:
 558           gnutls_free (params_data);
 559           gnutls_free (raw_prime.data);
 560           gnutls_free (raw_gen.data);
 561           gnutls_dh_params_deinit (dh_params);
 562       }
 563 }
 564
 565 static void
 566 print_ecdh_info (gnutls_session_t session, const char *str)
 567 {
 568     int curve;
 569
 570     printf ("- %sEC Diffie-Hellman parameters\n", str);
 571
 572     curve = gnutls_ecc_curve_get (session);
 573
 574     printf (" - Using curve: %s\n", gnutls_ecc_curve_get_name (curve));
 575     printf (" - Curve size: %d bits\n",
 576             gnutls_ecc_curve_get_size (curve) * 8);
 577
 578 }
 579
 580 int
 581 print_info (gnutls_session_t session, int print_cert)
 582 {
 583     const char *tmp;
 584     gnutls_credentials_type_t cred;
 585     gnutls_kx_algorithm_t kx;
 586     unsigned char session_id[33];
 587     size_t session_id_size = sizeof (session_id);
 588
 589     /* print session ID */
 590     gnutls_session_get_id (session, session_id, &session_id_size);
 591     printf ("- Session ID: %s\n",
 592             raw_to_string (session_id, session_id_size));
 593
 594     /* print the key exchange's algorithm name
 595      */
 596     kx = gnutls_kx_get (session);
 597
 598     cred = gnutls_auth_get_type (session);
 599     switch (cred)
 600       {
 601 #ifdef ENABLE_ANON
 602       case GNUTLS_CRD_ANON:
 603           if (kx == GNUTLS_KX_ANON_ECDH)
 604               print_ecdh_info (session, "Anonymous ");
 605           else
 606               print_dh_info (session, "Anonymous ", verbose);
 607           break;
 608 #endif
 609 #ifdef ENABLE_SRP
 610       case GNUTLS_CRD_SRP:
 611           /* This should be only called in server
 612            * side.
 613            */
 614           if (gnutls_srp_server_get_username (session) != NULL)
 615               printf ("- SRP authentication. Connected as '%s'\n",
 616                       gnutls_srp_server_get_username (session));
 617           break;
 618 #endif
 619 #ifdef ENABLE_PSK
 620       case GNUTLS_CRD_PSK:
 621           /* This returns NULL in server side.
 622            */
 623           if (gnutls_psk_client_get_hint (session) != NULL)
 624               printf ("- PSK authentication. PSK hint '%s'\n",
 625                       gnutls_psk_client_get_hint (session));
 626           /* This returns NULL in client side.
 627            */
 628           if (gnutls_psk_server_get_username (session) != NULL)
 629               printf ("- PSK authentication. Connected as '%s'\n",
 630                       gnutls_psk_server_get_username (session));
 631           if (kx == GNUTLS_KX_DHE_PSK)
 632               print_dh_info (session, "Ephemeral ", verbose);
 633           if (kx == GNUTLS_KX_ECDHE_PSK)
 634               print_ecdh_info (session, "Ephemeral ");
 635           break;
 636 #endif
 637       case GNUTLS_CRD_IA:
 638           printf ("- TLS/IA authentication\n");
 639           break;
 640       case GNUTLS_CRD_CERTIFICATE:
 641           {
 642               char dns[256];
 643               size_t dns_size = sizeof (dns);
 644               unsigned int type;
 645
 646               /* This fails in client side */
 647               if (gnutls_server_name_get
 648                   (session, dns, &dns_size, &type, 0) == 0)
 649                 {
 650                     printf ("- Given server name[%d]: %s\n", type, dns);
 651                 }
 652           }
 653
 654           print_cert_info (session,
 655                            verbose?GNUTLS_CRT_PRINT_FULL:GNUTLS_CRT_PRINT_COMPACT,
 656                            print_cert);
 657
 658           if (kx == GNUTLS_KX_DHE_RSA || kx == GNUTLS_KX_DHE_DSS)
 659               print_dh_info (session, "Ephemeral ", verbose);
 660           else if (kx == GNUTLS_KX_ECDHE_RSA
 661                    || kx == GNUTLS_KX_ECDHE_ECDSA)
 662               print_ecdh_info (session, "Ephemeral ");
 663       }
 664
 665     tmp =
 666         SU (gnutls_protocol_get_name
 667             (gnutls_protocol_get_version (session)));
 668     printf ("- Version: %s\n", tmp);
 669
 670     tmp = SU (gnutls_kx_get_name (kx));
 671     printf ("- Key Exchange: %s\n", tmp);
 672
 673     tmp = SU (gnutls_cipher_get_name (gnutls_cipher_get (session)));
 674     printf ("- Cipher: %s\n", tmp);
 675
 676     tmp = SU (gnutls_mac_get_name (gnutls_mac_get (session)));
 677     printf ("- MAC: %s\n", tmp);
 678
 679     tmp =
 680         SU (gnutls_compression_get_name
 681             (gnutls_compression_get (session)));
 682     printf ("- Compression: %s\n", tmp);
 683
 684     if (verbose)
 685       {
 686           gnutls_datum_t cb;
 687           int rc;
 688
 689           rc = gnutls_session_channel_binding (session,
 690                                                GNUTLS_CB_TLS_UNIQUE, &cb);
 691           if (rc)
 692               fprintf (stderr, "Channel binding error: %s\n",
 693                        gnutls_strerror (rc));
 694           else
 695             {
 696                 size_t i;
 697
 698                 printf ("- Channel binding 'tls-unique': ");
 699                 for (i = 0; i < cb.size; i++)
 700                     printf ("%02x", cb.data[i]);
 701                 printf ("\n");
 702             }
 703       }
 704
 705     /* Warning: Do not print anything more here. The 'Compression:'
 706        output MUST be the last non-verbose output.  This is used by
 707        Emacs starttls.el code. */
 708
 709     fflush (stdout);
 710
 711     return 0;
 712 }
 713
 714 void
 715 print_cert_info (gnutls_session_t session, int flag, int print_cert)
 716 {
 717
 718     if (gnutls_certificate_client_get_request_status (session) != 0)
 719         printf ("- Server has requested a certificate.\n");
 720
 721     switch (gnutls_certificate_type_get (session))
 722       {
 723       case GNUTLS_CRT_X509:
 724           print_x509_info (session, flag, print_cert);
 725           break;
 726 #ifdef ENABLE_OPENPGP
 727       case GNUTLS_CRT_OPENPGP:
 728           print_openpgp_info (session, flag, print_cert);
 729           break;
 730 #endif
 731       default:
 732           printf ("Unknown type\n");
 733           break;
 734       }
 735 }
 736
 737 void
 738 print_cert_info_compact (gnutls_session_t session)
 739 {
 740
 741     if (gnutls_certificate_client_get_request_status (session) != 0)
 742         printf ("- Server has requested a certificate.\n");
 743
 744     switch (gnutls_certificate_type_get (session))
 745       {
 746       case GNUTLS_CRT_X509:
 747           print_x509_info_compact (session);
 748           break;
 749 #ifdef ENABLE_OPENPGP
 750       case GNUTLS_CRT_OPENPGP:
 751           print_openpgp_info_compact (session);
 752           break;
 753 #endif
 754       default:
 755           printf ("Unknown type\n");
 756           break;
 757       }
 758 }
 759
 760 void
 761 print_list (const char *priorities, int verbose)
 762 {
 763     size_t i;
 764     int ret;
 765     unsigned int idx;
 766     const char *name;
 767     const char *err;
 768     unsigned char id[2];
 769     gnutls_kx_algorithm_t kx;
 770     gnutls_cipher_algorithm_t cipher;
 771     gnutls_mac_algorithm_t mac;
 772     gnutls_protocol_t version;
 773     gnutls_priority_t pcache;
 774     const unsigned int *list;
 775
 776     if (priorities != NULL)
 777       {
 778           printf ("Cipher suites for %s\n", priorities);
 779
 780           ret = gnutls_priority_init (&pcache, priorities, &err);
 781           if (ret < 0)
 782             {
 783                 fprintf (stderr, "Syntax error at: %s\n", err);
 784                 exit (1);
 785             }
 786
 787           for (i = 0;; i++)
 788             {
 789                 ret =
 790                     gnutls_priority_get_cipher_suite_index (pcache, i,
 791                                                             &idx);
 792                 if (ret == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE)
 793                     break;
 794                 if (ret == GNUTLS_E_UNKNOWN_CIPHER_SUITE)
 795                     continue;
 796
 797                 name =
 798                     gnutls_cipher_suite_info (idx, id, NULL, NULL, NULL,
 799                                               &version);
 800
 801                 if (name != NULL)
 802                     printf ("%-50s\t0x%02x, 0x%02x\t%s\n",
 803                             name, (unsigned char) id[0],
 804                             (unsigned char) id[1],
 805                             gnutls_protocol_get_name (version));
 806             }
 807
 808           printf("\n");
 809           {
 810               ret = gnutls_priority_certificate_type_list (pcache, &list);
 811
 812               printf ("Certificate types: ");
 813               if (ret == 0) printf("none\n");
 814               for (i = 0; i < (unsigned)ret; i++)
 815                 {
 816                     printf ("CTYPE-%s",
 817                             gnutls_certificate_type_get_name (list[i]));
 818                     if (i+1!=(unsigned)ret)
 819                         printf (", ");
 820                     else
 821                         printf ("\n");
 822                 }
 823           }
 824
 825           {
 826               ret = gnutls_priority_protocol_list (pcache, &list);
 827
 828               printf ("Protocols: ");
 829               if (ret == 0) printf("none\n");
 830               for (i = 0; i < (unsigned)ret; i++)
 831                 {
 832                     printf ("VERS-%s", gnutls_protocol_get_name (list[i]));
 833                     if (i+1!=(unsigned)ret)
 834                         printf (", ");
 835                     else
 836                         printf ("\n");
 837                 }
 838           }
 839
 840           {
 841               ret = gnutls_priority_compression_list (pcache, &list);
 842
 843               printf ("Compression: ");
 844               if (ret == 0) printf("none\n");
 845               for (i = 0; i < (unsigned)ret; i++)
 846                 {
 847                     printf ("COMP-%s",
 848                             gnutls_compression_get_name (list[i]));
 849                     if (i+1!=(unsigned)ret)
 850                         printf (", ");
 851                     else
 852                         printf ("\n");
 853                 }
 854           }
 855
 856           {
 857               ret = gnutls_priority_ecc_curve_list (pcache, &list);
 858
 859               printf ("Elliptic curves: ");
 860               if (ret == 0) printf("none\n");
 861               for (i = 0; i < (unsigned)ret; i++)
 862                 {
 863                     printf ("CURVE-%s",
 864                             gnutls_ecc_curve_get_name (list[i]));
 865                     if (i+1!=(unsigned)ret)
 866                         printf (", ");
 867                     else
 868                         printf ("\n");
 869                 }
 870           }
 871
 872           {
 873               ret = gnutls_priority_sign_list (pcache, &list);
 874
 875               printf ("PK-signatures: ");
 876               if (ret == 0) printf("none\n");
 877               for (i = 0; i < (unsigned)ret; i++)
 878                 {
 879                     printf ("SIGN-%s",
 880                             gnutls_sign_algorithm_get_name (list[i]));
 881                     if (i+1!=(unsigned)ret)
 882                         printf (", ");
 883                     else
 884                         printf ("\n");
 885                 }
 886           }
 887
 888           return;
 889       }
 890
 891     printf ("Cipher suites:\n");
 892     for (i = 0; (name = gnutls_cipher_suite_info
 893                  (i, id, &kx, &cipher, &mac, &version)); i++)
 894       {
 895           printf ("%-50s\t0x%02x, 0x%02x\t%s\n",
 896                   name,
 897                   (unsigned char) id[0], (unsigned char) id[1],
 898                   gnutls_protocol_get_name (version));
 899           if (verbose)
 900               printf ("\tKey exchange: %s\n\tCipher: %s\n\tMAC: %s\n\n",
 901                       gnutls_kx_get_name (kx),
 902                       gnutls_cipher_get_name (cipher),
 903                       gnutls_mac_get_name (mac));
 904       }
 905
 906     printf("\n");
 907     {
 908         const gnutls_certificate_type_t *p =
 909             gnutls_certificate_type_list ();
 910
 911         printf ("Certificate types: ");
 912         for (; *p; p++)
 913           {
 914               printf ("CTYPE-%s", gnutls_certificate_type_get_name (*p));
 915               if (*(p + 1))
 916                   printf (", ");
 917               else
 918                   printf ("\n");
 919           }
 920     }
 921
 922     {
 923         const gnutls_protocol_t *p = gnutls_protocol_list ();
 924
 925         printf ("Protocols: ");
 926         for (; *p; p++)
 927           {
 928               printf ("VERS-%s", gnutls_protocol_get_name (*p));
 929               if (*(p + 1))
 930                   printf (", ");
 931               else
 932                   printf ("\n");
 933           }
 934     }
 935
 936     {
 937         const gnutls_cipher_algorithm_t *p = gnutls_cipher_list ();
 938
 939         printf ("Ciphers: ");
 940         for (; *p; p++)
 941           {
 942               printf ("%s", gnutls_cipher_get_name (*p));
 943               if (*(p + 1))
 944                   printf (", ");
 945               else
 946                   printf ("\n");
 947           }
 948     }
 949
 950     {
 951         const gnutls_mac_algorithm_t *p = gnutls_mac_list ();
 952
 953         printf ("MACs: ");
 954         for (; *p; p++)
 955           {
 956               printf ("%s", gnutls_mac_get_name (*p));
 957               if (*(p + 1))
 958                   printf (", ");
 959               else
 960                   printf ("\n");
 961           }
 962     }
 963
 964     {
 965         const gnutls_kx_algorithm_t *p = gnutls_kx_list ();
 966
 967         printf ("Key exchange algorithms: ");
 968         for (; *p; p++)
 969           {
 970               printf ("%s", gnutls_kx_get_name (*p));
 971               if (*(p + 1))
 972                   printf (", ");
 973               else
 974                   printf ("\n");
 975           }
 976     }
 977
 978     {
 979         const gnutls_compression_method_t *p = gnutls_compression_list ();
 980
 981         printf ("Compression: ");
 982         for (; *p; p++)
 983           {
 984               printf ("COMP-%s", gnutls_compression_get_name (*p));
 985               if (*(p + 1))
 986                   printf (", ");
 987               else
 988                   printf ("\n");
 989           }
 990     }
 991
 992     {
 993         const gnutls_ecc_curve_t *p = gnutls_ecc_curve_list ();
 994
 995         printf ("Elliptic curves: ");
 996         for (; *p; p++)
 997           {
 998               printf ("CURVE-%s", gnutls_ecc_curve_get_name (*p));
 999               if (*(p + 1))
1000                   printf (", ");
1001               else
1002                   printf ("\n");
1003           }
1004     }
1005
1006     {
1007         const gnutls_pk_algorithm_t *p = gnutls_pk_list ();
1008
1009         printf ("Public Key Systems: ");
1010         for (; *p; p++)
1011           {
1012               printf ("%s", gnutls_pk_algorithm_get_name (*p));
1013               if (*(p + 1))
1014                   printf (", ");
1015               else
1016                   printf ("\n");
1017           }
1018     }
1019
1020     {
1021         const gnutls_sign_algorithm_t *p = gnutls_sign_list ();
1022
1023         printf ("PK-signatures: ");
1024         for (; *p; p++)
1025           {
1026               printf ("SIGN-%s", gnutls_sign_algorithm_get_name (*p));
1027               if (*(p + 1))
1028                   printf (", ");
1029               else
1030                   printf ("\n");
1031           }
1032     }
1033 }
1034
1035 int check_command(gnutls_session_t session, const char* str)
1036 {
1037 int len = strlen(str);
1038
1039   if (len > 2 && str[0] == str[1] && str[0] == '*')
1040     {
1041       if (strncmp(str, "**REHANDSHAKE**",
1042           sizeof ("**REHANDSHAKE**") - 1) == 0)
1043         {
1044           fprintf (stderr, "*** Sending rehandshake request\n");
1045                    gnutls_rehandshake (session);
1046           return 1;
1047         }
1048     }
1049   return 0;
1050 }