source/heimdal/lib/gssapi/mech/gss_krb5.c

   1 /*-
   2  * Copyright (c) 2005 Doug Rabson
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  *      $FreeBSD: src/lib/libgssapi/gss_krb5.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
  27  */
  28
  29 #include "mech_locl.h"
  30 #include "krb5/gsskrb5_locl.h"
  31 RCSID("$Id: gss_krb5.c,v 1.13 2006/10/20 22:05:02 lha Exp $");
  32
  33 #include <krb5.h>
  34 #include <roken.h>
  35
  36
  37 OM_uint32
  38 gss_krb5_copy_ccache(OM_uint32 *minor_status,
  39                      gss_cred_id_t cred,
  40                      krb5_ccache out)
  41 {
  42     gss_buffer_set_t data_set = GSS_C_NO_BUFFER_SET;
  43     krb5_context context;
  44     krb5_error_code kret;
  45     krb5_ccache id;
  46     OM_uint32 ret;
  47     char *str;
  48
  49     ret = gss_inquire_cred_by_oid(minor_status,
  50                                   cred,
  51                                   GSS_KRB5_COPY_CCACHE_X,
  52                                   &data_set);
  53     if (ret)
  54         return ret;
  55
  56     if (data_set == GSS_C_NO_BUFFER_SET || data_set->count != 1) {
  57         gss_release_buffer_set(minor_status, &data_set);
  58         *minor_status = EINVAL;
  59         return GSS_S_FAILURE;
  60     }
  61
  62     kret = krb5_init_context(&context);
  63     if (kret) {
  64         *minor_status = kret;
  65         gss_release_buffer_set(minor_status, &data_set);
  66         return GSS_S_FAILURE;
  67     }
  68
  69     kret = asprintf(&str, "%.*s", (int)data_set->elements[0].length,
  70                     (char *)data_set->elements[0].value);
  71     gss_release_buffer_set(minor_status, &data_set);
  72     if (kret == -1) {
  73         *minor_status = ENOMEM;
  74         return GSS_S_FAILURE;
  75     }
  76
  77     kret = krb5_cc_resolve(context, str, &id);
  78     free(str);
  79     if (kret) {
  80         *minor_status = kret;
  81         return GSS_S_FAILURE;
  82     }
  83
  84     kret = krb5_cc_copy_cache(context, id, out);
  85     krb5_cc_close(context, id);
  86     krb5_free_context(context);
  87     if (kret) {
  88         *minor_status = kret;
  89         return GSS_S_FAILURE;
  90     }
  91
  92     return ret;
  93 }
  94
  95 OM_uint32
  96 gss_krb5_import_cred(OM_uint32 *minor_status,
  97                      krb5_ccache id,
  98                      krb5_principal keytab_principal,
  99                      krb5_keytab keytab,
 100                      gss_cred_id_t *cred)
 101 {
 102     gss_buffer_desc buffer;
 103     OM_uint32 major_status;
 104     krb5_context context;
 105     krb5_error_code ret;
 106     krb5_storage *sp;
 107     krb5_data data;
 108     char *str;
 109
 110     *cred = GSS_C_NO_CREDENTIAL;
 111
 112     ret = krb5_init_context(&context);
 113     if (ret) {
 114         *minor_status = ret;
 115         return GSS_S_FAILURE;
 116     }
 117
 118     sp = krb5_storage_emem();
 119     if (sp == NULL) {
 120         *minor_status = ENOMEM;
 121         major_status = GSS_S_FAILURE;
 122         goto out;
 123     }
 124
 125     if (id) {
 126         ret = krb5_cc_get_full_name(context, id, &str);
 127         if (ret == 0) {
 128             ret = krb5_store_string(sp, str);
 129             free(str);
 130         }
 131     } else
 132         ret = krb5_store_string(sp, "");
 133     if (ret) {
 134         *minor_status = ret;
 135         major_status = GSS_S_FAILURE;
 136         goto out;
 137     }
 138
 139     if (keytab_principal) {
 140         ret = krb5_unparse_name(context, keytab_principal, &str);
 141         if (ret == 0) {
 142             ret = krb5_store_string(sp, str);
 143             free(str);
 144         }
 145     } else
 146         krb5_store_string(sp, "");
 147     if (ret) {
 148         *minor_status = ret;
 149         major_status = GSS_S_FAILURE;
 150         goto out;
 151     }
 152
 153
 154     if (keytab) {
 155         ret = krb5_kt_get_full_name(context, keytab, &str);
 156         if (ret == 0) {
 157             ret = krb5_store_string(sp, str);
 158             free(str);
 159         }
 160     } else
 161         krb5_store_string(sp, "");
 162     if (ret) {
 163         *minor_status = ret;
 164         major_status = GSS_S_FAILURE;
 165         goto out;
 166     }
 167
 168     krb5_storage_to_data(sp, &data);
 169
 170     buffer.value = data.data;
 171     buffer.length = data.length;
 172
 173     major_status = gss_set_cred_option(minor_status,
 174                                        cred,
 175                                        GSS_KRB5_IMPORT_CRED_X,
 176                                        &buffer);
 177     krb5_data_free(&data);
 178 out:
 179     if (sp)
 180         krb5_storage_free(sp);
 181     krb5_free_context(context);
 182     return major_status;
 183 }
 184
 185 OM_uint32
 186 gsskrb5_register_acceptor_identity(const char *identity)
 187 {
 188         struct _gss_mech_switch *m;
 189         gss_buffer_desc buffer;
 190         OM_uint32 junk;
 191
 192         _gss_load_mech();
 193
 194         buffer.value = rk_UNCONST(identity);
 195         buffer.length = strlen(identity);
 196
 197         SLIST_FOREACH(m, &_gss_mechs, gm_link) {
 198                 if (m->gm_mech.gm_set_sec_context_option == NULL)
 199                         continue;
 200                 m->gm_mech.gm_set_sec_context_option(&junk, NULL,
 201                     GSS_KRB5_REGISTER_ACCEPTOR_IDENTITY_X, &buffer);
 202         }
 203
 204         return (GSS_S_COMPLETE);
 205 }
 206
 207 OM_uint32
 208 gsskrb5_set_dns_canonicalize(int flag)
 209 {
 210         struct _gss_mech_switch *m;
 211         gss_buffer_desc buffer;
 212         OM_uint32 junk;
 213         char b = (flag != 0);
 214
 215         _gss_load_mech();
 216
 217         buffer.value = &b;
 218         buffer.length = sizeof(b);
 219
 220         SLIST_FOREACH(m, &_gss_mechs, gm_link) {
 221                 if (m->gm_mech.gm_set_sec_context_option == NULL)
 222                         continue;
 223                 m->gm_mech.gm_set_sec_context_option(&junk, NULL,
 224                     GSS_KRB5_SET_DNS_CANONICALIZE_X, &buffer);
 225         }
 226
 227         return (GSS_S_COMPLETE);
 228 }
 229
 230
 231
 232 static krb5_error_code
 233 set_key(krb5_keyblock *keyblock, gss_krb5_lucid_key_t *key)
 234 {
 235     key->type = keyblock->keytype;
 236     key->length = keyblock->keyvalue.length;
 237     key->data = malloc(key->length);
 238     if (key->data == NULL && key->length != 0)
 239         return ENOMEM;
 240     memcpy(key->data, keyblock->keyvalue.data, key->length);
 241     return 0;
 242 }
 243
 244 static void
 245 free_key(gss_krb5_lucid_key_t *key)
 246 {
 247     memset(key->data, 0, key->length);
 248     free(key->data);
 249     memset(key, 0, sizeof(*key));
 250 }
 251
 252
 253 OM_uint32
 254 gss_krb5_export_lucid_sec_context(OM_uint32 *minor_status,
 255                                   gss_ctx_id_t *context_handle,
 256                                   OM_uint32 version,
 257                                   void **rctx)
 258 {
 259     krb5_context context = NULL;
 260     krb5_error_code ret;
 261     gss_buffer_set_t data_set = GSS_C_NO_BUFFER_SET;
 262     OM_uint32 major_status;
 263     gss_krb5_lucid_context_v1_t *ctx = NULL;
 264     krb5_storage *sp = NULL;
 265     uint32_t num;
 266
 267     if (context_handle == NULL || *context_handle == GSS_C_NO_CONTEXT || version != 1) {
 268         ret = EINVAL;
 269         return GSS_S_FAILURE;
 270     }
 271
 272     major_status =
 273         gss_inquire_sec_context_by_oid (minor_status,
 274                                         *context_handle,
 275                                         GSS_KRB5_EXPORT_LUCID_CONTEXT_V1_X,
 276                                         &data_set);
 277     if (major_status)
 278         return major_status;
 279
 280     if (data_set == GSS_C_NO_BUFFER_SET || data_set->count != 1) {
 281         gss_release_buffer_set(minor_status, &data_set);
 282         *minor_status = EINVAL;
 283         return GSS_S_FAILURE;
 284     }
 285
 286     ret = krb5_init_context(&context);
 287     if (ret)
 288         goto out;
 289
 290     ctx = calloc(1, sizeof(*ctx));
 291     if (ctx == NULL) {
 292         ret = ENOMEM;
 293         goto out;
 294     }
 295
 296     sp = krb5_storage_from_mem(data_set->elements[0].value,
 297                                data_set->elements[0].length);
 298     if (sp == NULL) {
 299         ret = ENOMEM;
 300         goto out;
 301     }
 302
 303     ret = krb5_ret_uint32(sp, &num);
 304     if (ret) goto out;
 305     if (num != 1) {
 306         ret = EINVAL;
 307         goto out;
 308     }
 309     ctx->version = 1;
 310     /* initiator */
 311     ret = krb5_ret_uint32(sp, &ctx->initiate);
 312     if (ret) goto out;
 313     /* endtime */
 314     ret = krb5_ret_uint32(sp, &ctx->endtime);
 315     if (ret) goto out;
 316     /* send_seq */
 317     ret = krb5_ret_uint32(sp, &num);
 318     if (ret) goto out;
 319     ctx->send_seq = ((uint64_t)num) << 32;
 320     ret = krb5_ret_uint32(sp, &num);
 321     if (ret) goto out;
 322     ctx->send_seq |= num;
 323     /* recv_seq */
 324     ret = krb5_ret_uint32(sp, &num);
 325     if (ret) goto out;
 326     ctx->recv_seq = ((uint64_t)num) << 32;
 327     ret = krb5_ret_uint32(sp, &num);
 328     if (ret) goto out;
 329     ctx->recv_seq |= num;
 330     /* protocol */
 331     ret = krb5_ret_uint32(sp, &ctx->protocol);
 332     if (ret) goto out;
 333     if (ctx->protocol == 0) {
 334         krb5_keyblock key;
 335
 336         /* sign_alg */
 337         ret = krb5_ret_uint32(sp, &ctx->rfc1964_kd.sign_alg);
 338         if (ret) goto out;
 339         /* seal_alg */
 340         ret = krb5_ret_uint32(sp, &ctx->rfc1964_kd.seal_alg);
 341         if (ret) goto out;
 342         /* ctx_key */
 343         ret = krb5_ret_keyblock(sp, &key);
 344         if (ret) goto out;
 345         ret = set_key(&key, &ctx->rfc1964_kd.ctx_key);
 346         krb5_free_keyblock_contents(context, &key);
 347         if (ret) goto out;
 348     } else if (ctx->protocol == 1) {
 349         krb5_keyblock key;
 350
 351         /* acceptor_subkey */
 352         ret = krb5_ret_uint32(sp, &ctx->cfx_kd.have_acceptor_subkey);
 353         if (ret) goto out;
 354         /* ctx_key */
 355         ret = krb5_ret_keyblock(sp, &key);
 356         if (ret) goto out;
 357         ret = set_key(&key, &ctx->cfx_kd.ctx_key);
 358         krb5_free_keyblock_contents(context, &key);
 359         if (ret) goto out;
 360         /* acceptor_subkey */
 361         if (ctx->cfx_kd.have_acceptor_subkey) {
 362             ret = krb5_ret_keyblock(sp, &key);
 363             if (ret) goto out;
 364             ret = set_key(&key, &ctx->cfx_kd.acceptor_subkey);
 365             krb5_free_keyblock_contents(context, &key);
 366             if (ret) goto out;
 367         }
 368     } else {
 369         ret = EINVAL;
 370         goto out;
 371     }
 372
 373     *rctx = ctx;
 374
 375 out:
 376     gss_release_buffer_set(minor_status, &data_set);
 377     if (sp)
 378         krb5_storage_free(sp);
 379     if (context)
 380         krb5_free_context(context);
 381
 382     if (ret) {
 383         if (ctx)
 384             gss_krb5_free_lucid_sec_context(NULL, ctx);
 385
 386         *minor_status = ret;
 387         return GSS_S_FAILURE;
 388     }
 389     *minor_status = 0;
 390     return GSS_S_COMPLETE;
 391 }
 392
 393 OM_uint32
 394 gss_krb5_free_lucid_sec_context(OM_uint32 *minor_status, void *c)
 395 {
 396     gss_krb5_lucid_context_v1_t *ctx = c;
 397
 398     if (ctx->version != 1) {
 399         if (minor_status)
 400             *minor_status = 0;
 401         return GSS_S_FAILURE;
 402     }
 403
 404     if (ctx->protocol == 0) {
 405         free_key(&ctx->rfc1964_kd.ctx_key);
 406     } else if (ctx->protocol == 1) {
 407         free_key(&ctx->cfx_kd.ctx_key);
 408         if (ctx->cfx_kd.have_acceptor_subkey)
 409             free_key(&ctx->cfx_kd.acceptor_subkey);
 410     }
 411     free(ctx);
 412     if (minor_status)
 413         *minor_status = 0;
 414     return GSS_S_COMPLETE;
 415 }
 416
 417 OM_uint32
 418 gsskrb5_set_send_to_kdc(struct gsskrb5_send_to_kdc *c)
 419 {
 420     struct _gss_mech_switch *m;
 421     gss_buffer_desc buffer;
 422     OM_uint32 junk;
 423
 424     _gss_load_mech();
 425
 426     if (c) {
 427         buffer.value = c;
 428         buffer.length = sizeof(*c);
 429     } else {
 430         buffer.value = NULL;
 431         buffer.length = 0;
 432     }
 433
 434     SLIST_FOREACH(m, &_gss_mechs, gm_link) {
 435         if (m->gm_mech.gm_set_sec_context_option == NULL)
 436             continue;
 437         m->gm_mech.gm_set_sec_context_option(&junk, NULL,
 438             GSS_KRB5_SEND_TO_KDC_X, &buffer);
 439     }
 440
 441     return (GSS_S_COMPLETE);
 442 }
 443
 444 OM_uint32
 445 gsskrb5_extract_authtime_from_sec_context(OM_uint32 *minor_status,
 446                                           gss_ctx_id_t context_handle,
 447                                           time_t *authtime)
 448 {
 449     gss_buffer_set_t data_set = GSS_C_NO_BUFFER_SET;
 450     OM_uint32 maj_stat;
 451     krb5_error_code ret;
 452     OM_uint32 time32;
 453
 454     if (context_handle == GSS_C_NO_CONTEXT) {
 455         _gsskrb5_set_status("no context handle");
 456         *minor_status = EINVAL;
 457         return GSS_S_FAILURE;
 458     }
 459
 460     maj_stat =
 461         gss_inquire_sec_context_by_oid (minor_status,
 462                                         context_handle,
 463                                         GSS_KRB5_GET_AUTHTIME_X,
 464                                         &data_set);
 465     if (maj_stat)
 466         return maj_stat;
 467
 468     if (data_set == GSS_C_NO_BUFFER_SET) {
 469         _gsskrb5_set_status("no buffers returned");
 470         gss_release_buffer_set(minor_status, &data_set);
 471         *minor_status = EINVAL;
 472         return GSS_S_FAILURE;
 473     }
 474
 475     if (data_set->count != 1) {
 476         _gsskrb5_set_status("%d != 1 buffers returned", data_set->count);
 477         gss_release_buffer_set(minor_status, &data_set);
 478         *minor_status = EINVAL;
 479         return GSS_S_FAILURE;
 480     }
 481
 482     if (data_set->elements[0].length != 4) {
 483         gss_release_buffer_set(minor_status, &data_set);
 484         _gsskrb5_set_status("Error extracting authtime from security context: only got %d < 4 bytes",
 485                             data_set->elements[0].length);
 486         *minor_status = EINVAL;
 487         return GSS_S_FAILURE;
 488     }
 489
 490     ret = _gsskrb5_decode_om_uint32(data_set->elements[0].value, &time32);
 491     if (ret) {
 492         gss_release_buffer_set(minor_status, &data_set);
 493         *minor_status = ret;
 494         return GSS_S_FAILURE;
 495     }
 496     *authtime = time32;
 497
 498     gss_release_buffer_set(minor_status, &data_set);
 499
 500     *minor_status = 0;
 501     return GSS_S_COMPLETE;
 502 }
 503
 504 OM_uint32
 505 gsskrb5_extract_authz_data_from_sec_context(OM_uint32 *minor_status,
 506                                             gss_ctx_id_t context_handle,
 507                                             int ad_type,
 508                                             gss_buffer_t ad_data)
 509 {
 510     gss_buffer_set_t data_set = GSS_C_NO_BUFFER_SET;
 511     OM_uint32 maj_stat;
 512     gss_OID_desc authz_oid_flat;
 513     heim_oid authz_oid;
 514     heim_oid new_authz_oid;
 515     size_t size;
 516
 517     if (context_handle == GSS_C_NO_CONTEXT) {
 518         *minor_status = EINVAL;
 519         return GSS_S_FAILURE;
 520     }
 521
 522     /* All this to append an integer to an oid... */
 523
 524     if (der_get_oid(GSS_KRB5_EXTRACT_AUTHZ_DATA_FROM_SEC_CONTEXT_X->elements,
 525                     GSS_KRB5_EXTRACT_AUTHZ_DATA_FROM_SEC_CONTEXT_X->length,
 526                     &authz_oid, NULL) != 0) {
 527         *minor_status = EINVAL;
 528         return GSS_S_FAILURE;
 529     }
 530
 531     new_authz_oid.length = authz_oid.length + 1;
 532     new_authz_oid.components = malloc(new_authz_oid.length * sizeof(*new_authz_oid.components));
 533     if (!new_authz_oid.components) {
 534         free(authz_oid.components);
 535
 536         *minor_status = ENOMEM;
 537         return GSS_S_FAILURE;
 538     }
 539
 540     memcpy(new_authz_oid.components, authz_oid.components,
 541            authz_oid.length * sizeof(*authz_oid.components));
 542
 543     free(authz_oid.components);
 544
 545     new_authz_oid.components[new_authz_oid.length - 1] = ad_type;
 546
 547     authz_oid_flat.length = der_length_oid(&new_authz_oid);
 548     authz_oid_flat.elements = malloc(authz_oid_flat.length);
 549
 550     if (!authz_oid_flat.elements) {
 551         free(new_authz_oid.components);
 552
 553         *minor_status = ENOMEM;
 554         return GSS_S_FAILURE;
 555     }
 556
 557     if (der_put_oid((unsigned char *)authz_oid_flat.elements + authz_oid_flat.length - 1,
 558                     authz_oid_flat.length,
 559                     &new_authz_oid, &size) != 0) {
 560         free(new_authz_oid.components);
 561
 562         *minor_status = EINVAL;
 563         return GSS_S_FAILURE;
 564     }
 565
 566     free(new_authz_oid.components);
 567
 568     /* FINALLY, we have the OID */
 569
 570     maj_stat =
 571         gss_inquire_sec_context_by_oid (minor_status,
 572                                         context_handle,
 573                                         &authz_oid_flat,
 574                                         &data_set);
 575
 576     free(authz_oid_flat.elements);
 577
 578     if (maj_stat)
 579         return maj_stat;
 580
 581     if (data_set == GSS_C_NO_BUFFER_SET || data_set->count != 1) {
 582         gss_release_buffer_set(minor_status, &data_set);
 583         *minor_status = EINVAL;
 584         return GSS_S_FAILURE;
 585     }
 586
 587     ad_data->value = malloc(data_set->elements[0].length);
 588     if (ad_data->value == NULL) {
 589         gss_release_buffer_set(minor_status, &data_set);
 590         *minor_status = ENOMEM;
 591         return GSS_S_FAILURE;
 592     }
 593
 594     ad_data->length = data_set->elements[0].length;
 595     memcpy(ad_data->value, data_set->elements[0].value, ad_data->length);
 596     gss_release_buffer_set(minor_status, &data_set);
 597
 598     *minor_status = 0;
 599     return GSS_S_COMPLETE;
 600 }
 601
 602 static OM_uint32
 603 gsskrb5_extract_key(OM_uint32 *minor_status,
 604                     gss_ctx_id_t context_handle,
 605                     const gss_OID oid,
 606                     krb5_keyblock **keyblock)
 607 {
 608     krb5_error_code ret;
 609     gss_buffer_set_t data_set = GSS_C_NO_BUFFER_SET;
 610     OM_uint32 major_status;
 611     krb5_storage *sp = NULL;
 612
 613     ret = _gsskrb5_init();
 614     if(ret) {
 615         *minor_status = ret;
 616         return GSS_S_FAILURE;
 617     }
 618
 619     if (context_handle == GSS_C_NO_CONTEXT) {
 620         _gsskrb5_set_status("no context handle");
 621         *minor_status = EINVAL;
 622         return GSS_S_FAILURE;
 623     }
 624
 625     major_status =
 626         gss_inquire_sec_context_by_oid (minor_status,
 627                                         context_handle,
 628                                         oid,
 629                                         &data_set);
 630     if (major_status)
 631         return major_status;
 632
 633     if (data_set == GSS_C_NO_BUFFER_SET) {
 634         _gsskrb5_set_status("no buffers returned");
 635         gss_release_buffer_set(minor_status, &data_set);
 636         *minor_status = EINVAL;
 637         return GSS_S_FAILURE;
 638     }
 639
 640     if (data_set->count != 1) {
 641         _gsskrb5_set_status("%d != 1 buffers returned", data_set->count);
 642         gss_release_buffer_set(minor_status, &data_set);
 643         *minor_status = EINVAL;
 644         return GSS_S_FAILURE;
 645     }
 646
 647     sp = krb5_storage_from_mem(data_set->elements[0].value,
 648                                data_set->elements[0].length);
 649     if (sp == NULL) {
 650         ret = ENOMEM;
 651         goto out;
 652     }
 653
 654     *keyblock = calloc(1, sizeof(**keyblock));
 655     if (keyblock == NULL) {
 656         ret = ENOMEM;
 657         goto out;
 658     }
 659
 660     ret = krb5_ret_keyblock(sp, *keyblock);
 661
 662 out:
 663     gss_release_buffer_set(minor_status, &data_set);
 664     if (sp)
 665         krb5_storage_free(sp);
 666     if (ret) {
 667         _gsskrb5_set_error_string();
 668         if (keyblock) {
 669             krb5_free_keyblock(_gsskrb5_context, *keyblock);
 670         }
 671
 672         *minor_status = ret;
 673         return GSS_S_FAILURE;
 674     }
 675     *minor_status = 0;
 676     return GSS_S_COMPLETE;
 677 }
 678
 679 OM_uint32
 680 gsskrb5_extract_service_keyblock(OM_uint32 *minor_status,
 681                                  gss_ctx_id_t context_handle,
 682                                  krb5_keyblock **keyblock)
 683 {
 684     return gsskrb5_extract_key(minor_status,
 685                                context_handle,
 686                                GSS_KRB5_GET_SERVICE_KEYBLOCK_X,
 687                                keyblock);
 688 }
 689
 690 OM_uint32
 691 gsskrb5_get_initiator_subkey(OM_uint32 *minor_status,
 692                              gss_ctx_id_t context_handle,
 693                              krb5_keyblock **keyblock)
 694 {
 695     return gsskrb5_extract_key(minor_status,
 696                                context_handle,
 697                                GSS_KRB5_GET_INITIATOR_SUBKEY_X,
 698                                keyblock);
 699 }
 700
 701 OM_uint32
 702 gsskrb5_get_subkey(OM_uint32 *minor_status,
 703                    gss_ctx_id_t context_handle,
 704                    krb5_keyblock **keyblock)
 705 {
 706     return gsskrb5_extract_key(minor_status,
 707                                context_handle,
 708                                GSS_KRB5_GET_ACCEPTOR_SUBKEY_X,
 709                                keyblock);
 710 }