www.project-moonshot.org Git - mech_eap.orig/blob - util_name.c

   1 /*
   2  * Copyright (c) 2011, JANET(UK)
   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  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  *
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * 3. Neither the name of JANET(UK) nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  21  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32 /*
  33  * Portions Copyright 2009 by the Massachusetts Institute of Technology.
  34  * All Rights Reserved.
  35  *
  36  * Export of this software from the United States of America may
  37  *   require a specific license from the United States Government.
  38  *   It is the responsibility of any person or organization contemplating
  39  *   export to obtain such a license before exporting.
  40  *
  41  * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
  42  * distribute this software and its documentation for any purpose and
  43  * without fee is hereby granted, provided that the above copyright
  44  * notice appear in all copies and that both that copyright notice and
  45  * this permission notice appear in supporting documentation, and that
  46  * the name of M.I.T. not be used in advertising or publicity pertaining
  47  * to distribution of the software without specific, written prior
  48  * permission.  Furthermore if you modify this software you must label
  49  * your software as modified software and not distribute it in such a
  50  * fashion that it might be confused with the original M.I.T. software.
  51  * M.I.T. makes no representations about the suitability of
  52  * this software for any purpose.  It is provided "as is" without express
  53  * or implied warranty.
  54  */
  55
  56 /*
  57  * Name utility routines.
  58  */
  59
  60 #include "gssapiP_eap.h"
  61
  62 static gss_OID_desc gssEapNtPrincipalName = {
  63     /* 1.3.6.1.4.1.5322.22.2.1  */
  64     10, "\x2B\x06\x01\x04\x01\xA9\x4A\x16\x02\x01"
  65 };
  66
  67 gss_OID GSS_EAP_NT_PRINCIPAL_NAME = &gssEapNtPrincipalName;
  68
  69 OM_uint32
  70 gssEapAllocName(OM_uint32 *minor, gss_name_t *pName)
  71 {
  72     OM_uint32 tmpMinor;
  73     gss_name_t name;
  74
  75     *pName = GSS_C_NO_NAME;
  76
  77     name = (gss_name_t)GSSEAP_CALLOC(1, sizeof(*name));
  78     if (name == NULL) {
  79         *minor = ENOMEM;
  80         return GSS_S_FAILURE;
  81     }
  82
  83     if (GSSEAP_MUTEX_INIT(&name->mutex) != 0) {
  84         *minor = errno;
  85         gssEapReleaseName(&tmpMinor, &name);
  86         return GSS_S_FAILURE;
  87     }
  88
  89     *pName = name;
  90
  91     return GSS_S_COMPLETE;
  92 }
  93
  94 OM_uint32
  95 gssEapReleaseName(OM_uint32 *minor, gss_name_t *pName)
  96 {
  97     gss_name_t name;
  98     krb5_context krbContext = NULL;
  99     OM_uint32 tmpMinor;
 100
 101     *minor = 0;
 102
 103     if (pName == NULL) {
 104         return GSS_S_COMPLETE;
 105     }
 106
 107     name = *pName;
 108     if (name == GSS_C_NO_NAME) {
 109         return GSS_S_COMPLETE;
 110     }
 111
 112     GSSEAP_KRB_INIT(&krbContext);
 113     krb5_free_principal(krbContext, name->krbPrincipal);
 114     gssEapReleaseOid(&tmpMinor, &name->mechanismUsed);
 115
 116     gssEapReleaseAttrContext(&tmpMinor, name);
 117
 118     GSSEAP_MUTEX_DESTROY(&name->mutex);
 119     GSSEAP_FREE(name);
 120     *pName = NULL;
 121
 122     return GSS_S_COMPLETE;
 123 }
 124
 125 static OM_uint32
 126 krbPrincipalToName(OM_uint32 *minor,
 127                    krb5_principal *principal,
 128                    gss_name_t *pName)
 129 {
 130     OM_uint32 major;
 131     gss_name_t name;
 132
 133     major = gssEapAllocName(minor, &name);
 134     if (GSS_ERROR(major))
 135         return major;
 136
 137     name->krbPrincipal = *principal;
 138     *principal = NULL;
 139
 140     if (KRB_PRINC_LENGTH(name->krbPrincipal) > 1) {
 141         name->flags |= NAME_FLAG_SERVICE;
 142     } else {
 143         name->flags |= NAME_FLAG_NAI;
 144     }
 145
 146     *pName = name;
 147     *minor = 0;
 148
 149     return GSS_S_COMPLETE;
 150 }
 151
 152 static OM_uint32
 153 importServiceName(OM_uint32 *minor,
 154                   const gss_buffer_t nameBuffer,
 155                   gss_name_t *pName)
 156 {
 157     OM_uint32 major;
 158     krb5_context krbContext;
 159     krb5_principal krbPrinc;
 160     char *service, *host;
 161
 162     GSSEAP_KRB_INIT(&krbContext);
 163
 164     major = bufferToString(minor, nameBuffer, &service);
 165     if (GSS_ERROR(major))
 166         return major;
 167
 168     host = strchr(service, '@');
 169     if (host != NULL) {
 170         *host = '\0';
 171         host++;
 172     }
 173
 174     /* XXX this is probably NOT what we want to be doing */
 175     if (krb5_sname_to_principal(krbContext, host, service,
 176                                 KRB5_NT_SRV_HST, &krbPrinc) != 0) {
 177         GSSEAP_FREE(service);
 178         *minor = GSSEAP_BAD_SERVICE_NAME;
 179         return GSS_S_FAILURE;
 180     }
 181
 182     major = krbPrincipalToName(minor, &krbPrinc, pName);
 183     if (GSS_ERROR(major)) {
 184         krb5_free_principal(krbContext, krbPrinc);
 185     }
 186
 187     GSSEAP_FREE(service);
 188     return major;
 189 }
 190
 191 static OM_uint32
 192 importUserName(OM_uint32 *minor,
 193                const gss_buffer_t nameBuffer,
 194                gss_name_t *pName)
 195 {
 196     OM_uint32 major;
 197     krb5_context krbContext;
 198     krb5_principal krbPrinc;
 199     char *nameString, *realm = NULL;
 200     int flags = 0;
 201     krb5_error_code code;
 202
 203     GSSEAP_KRB_INIT(&krbContext);
 204
 205     code = krb5_get_default_realm(krbContext, &realm);
 206     if (code != 0 || realm == NULL)
 207         flags |= KRB5_PRINCIPAL_PARSE_REQUIRE_REALM;
 208     else
 209         krb5_free_default_realm(krbContext, realm);
 210
 211     if (nameBuffer == GSS_C_NO_BUFFER) {
 212         *minor = krb5_copy_principal(krbContext,
 213                                      krbAnonymousPrincipal(), &krbPrinc);
 214         if (*minor != 0)
 215             return GSS_S_FAILURE;
 216     } else {
 217         major = bufferToString(minor, nameBuffer, &nameString);
 218         if (GSS_ERROR(major))
 219             return major;
 220
 221         *minor = krb5_parse_name_flags(krbContext, nameString, flags, &krbPrinc);
 222         if (*minor != 0) {
 223             GSSEAP_FREE(nameString);
 224             return GSS_S_FAILURE;
 225         }
 226     }
 227
 228     major = krbPrincipalToName(minor, &krbPrinc, pName);
 229     if (GSS_ERROR(major)) {
 230         krb5_free_principal(krbContext, krbPrinc);
 231     }
 232
 233     GSSEAP_FREE(nameString);
 234     return major;
 235 }
 236
 237 static OM_uint32
 238 importAnonymousName(OM_uint32 *minor,
 239                     const gss_buffer_t nameBuffer GSSEAP_UNUSED,
 240                     gss_name_t *pName)
 241 {
 242     OM_uint32 major;
 243     krb5_context krbContext;
 244     krb5_principal krbPrinc;
 245
 246     GSSEAP_KRB_INIT(&krbContext);
 247
 248     *minor = krb5_copy_principal(krbContext, krbAnonymousPrincipal(),
 249                                  &krbPrinc);
 250     if (*minor != 0)
 251         return GSS_S_FAILURE;
 252
 253     major = krbPrincipalToName(minor, &krbPrinc, pName);
 254     if (GSS_ERROR(major)) {
 255         krb5_free_principal(krbContext, krbPrinc);
 256     }
 257
 258     return major;
 259 }
 260
 261 #define UPDATE_REMAIN(n)    do {            \
 262         p += (n);                           \
 263         remain -= (n);                      \
 264     } while (0)
 265
 266 #define CHECK_REMAIN(n)     do {        \
 267         if (remain < (n)) {             \
 268             major = GSS_S_BAD_NAME;     \
 269             *minor = GSSEAP_TOK_TRUNC;  \
 270             goto cleanup;               \
 271         }                               \
 272     } while (0)
 273
 274 OM_uint32
 275 gssEapImportNameInternal(OM_uint32 *minor,
 276                          const gss_buffer_t nameBuffer,
 277                          gss_name_t *pName,
 278                          unsigned int flags)
 279 {
 280     OM_uint32 major, tmpMinor;
 281     krb5_context krbContext;
 282     unsigned char *p;
 283     size_t len, remain;
 284     gss_buffer_desc buf;
 285     enum gss_eap_token_type tokType;
 286     gss_name_t name = GSS_C_NO_NAME;
 287     gss_OID mechanismUsed = GSS_C_NO_OID;
 288
 289     GSSEAP_KRB_INIT(&krbContext);
 290
 291     p = (unsigned char *)nameBuffer->value;
 292     remain = nameBuffer->length;
 293
 294     if (flags & EXPORT_NAME_FLAG_OID) {
 295         gss_OID_desc mech;
 296
 297         /* TOK_ID || MECH_OID_LEN || MECH_OID */
 298         if (remain < 6)
 299             return GSS_S_BAD_NAME;
 300
 301         if (flags & EXPORT_NAME_FLAG_COMPOSITE)
 302             tokType = TOK_TYPE_EXPORT_NAME_COMPOSITE;
 303         else
 304             tokType = TOK_TYPE_EXPORT_NAME;
 305
 306         /* TOK_ID */
 307         if (load_uint16_be(p) != tokType)
 308             return GSS_S_BAD_NAME;
 309         UPDATE_REMAIN(2);
 310
 311         /* MECH_OID_LEN */
 312         len = load_uint16_be(p);
 313         if (len < 2)
 314             return GSS_S_BAD_NAME;
 315         UPDATE_REMAIN(2);
 316
 317         /* MECH_OID */
 318         if (p[0] != 0x06)
 319             return GSS_S_BAD_NAME;
 320
 321         mech.length = p[1];
 322         mech.elements = &p[2];
 323
 324         CHECK_REMAIN(mech.length);
 325
 326         major = gssEapCanonicalizeOid(minor,
 327                                       &mech,
 328                                       OID_FLAG_FAMILY_MECH_VALID |
 329                                         OID_FLAG_MAP_FAMILY_MECH_TO_NULL,
 330                                       &mechanismUsed);
 331         if (GSS_ERROR(major))
 332             goto cleanup;
 333
 334         UPDATE_REMAIN(2 + mech.length);
 335     }
 336
 337     /* NAME_LEN */
 338     CHECK_REMAIN(4);
 339     len = load_uint32_be(p);
 340     UPDATE_REMAIN(4);
 341
 342     /* NAME */
 343     CHECK_REMAIN(len);
 344     buf.length = len;
 345     buf.value = p;
 346     UPDATE_REMAIN(len);
 347
 348     major = importUserName(minor, &buf, &name);
 349     if (GSS_ERROR(major))
 350         goto cleanup;
 351
 352     name->mechanismUsed = mechanismUsed;
 353     mechanismUsed = GSS_C_NO_OID;
 354
 355     if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
 356         gss_buffer_desc buf;
 357
 358         buf.length = remain;
 359         buf.value = p;
 360
 361         major = gssEapImportAttrContext(minor, &buf, name);
 362         if (GSS_ERROR(major))
 363             goto cleanup;
 364     }
 365
 366     major = GSS_S_COMPLETE;
 367     *minor = 0;
 368
 369 cleanup:
 370     if (GSS_ERROR(major)) {
 371         gssEapReleaseOid(&tmpMinor, &mechanismUsed);
 372         gssEapReleaseName(&tmpMinor, &name);
 373     } else {
 374         *pName = name;
 375     }
 376
 377     return major;
 378 }
 379
 380 static OM_uint32
 381 importExportName(OM_uint32 *minor,
 382                  const gss_buffer_t nameBuffer,
 383                  gss_name_t *name)
 384 {
 385     return gssEapImportNameInternal(minor, nameBuffer, name,
 386                                     EXPORT_NAME_FLAG_OID);
 387 }
 388
 389 #ifdef HAVE_GSS_C_NT_COMPOSITE_EXPORT
 390 static OM_uint32
 391 importCompositeExportName(OM_uint32 *minor,
 392                           const gss_buffer_t nameBuffer,
 393                           gss_name_t *name)
 394 {
 395     return gssEapImportNameInternal(minor, nameBuffer, name,
 396                                     EXPORT_NAME_FLAG_OID |
 397                                     EXPORT_NAME_FLAG_COMPOSITE);
 398 }
 399 #endif
 400
 401 struct gss_eap_name_import_provider {
 402     gss_OID oid;
 403     OM_uint32 (*import)(OM_uint32 *, const gss_buffer_t, gss_name_t *);
 404 };
 405
 406 OM_uint32
 407 gssEapImportName(OM_uint32 *minor,
 408                  const gss_buffer_t nameBuffer,
 409                  gss_OID nameType,
 410                  gss_OID mechType,
 411                  gss_name_t *pName)
 412 {
 413     struct gss_eap_name_import_provider nameTypes[] = {
 414         { GSS_C_NT_USER_NAME,               importUserName              },
 415         { GSS_EAP_NT_PRINCIPAL_NAME,        importUserName              },
 416         { GSS_C_NT_HOSTBASED_SERVICE,       importServiceName           },
 417         { GSS_C_NT_HOSTBASED_SERVICE_X,     importServiceName           },
 418         { GSS_C_NT_ANONYMOUS,               importAnonymousName         },
 419         { GSS_C_NT_EXPORT_NAME,             importExportName            },
 420 #ifdef HAVE_GSS_C_NT_COMPOSITE_EXPORT
 421         { GSS_C_NT_COMPOSITE_EXPORT,        importCompositeExportName   },
 422 #endif
 423     };
 424     size_t i;
 425     OM_uint32 major = GSS_S_BAD_NAMETYPE;
 426     OM_uint32 tmpMinor;
 427     gss_name_t name = GSS_C_NO_NAME;
 428
 429     if (nameType == GSS_C_NO_OID)
 430         nameType = nameTypes[0].oid;
 431
 432     for (i = 0; i < sizeof(nameTypes) / sizeof(nameTypes[0]); i++) {
 433         if (oidEqual(nameTypes[i].oid, nameType)) {
 434             major = nameTypes[i].import(minor, nameBuffer, &name);
 435             break;
 436         }
 437     }
 438
 439     if (major == GSS_S_COMPLETE &&
 440         mechType != GSS_C_NO_OID) {
 441         assert(gssEapIsConcreteMechanismOid(mechType));
 442         assert(name->mechanismUsed == GSS_C_NO_OID);
 443
 444         major = gssEapCanonicalizeOid(minor, mechType, 0, &name->mechanismUsed);
 445     }
 446
 447     if (GSS_ERROR(major))
 448         gssEapReleaseName(&tmpMinor, &name);
 449     else
 450         *pName = name;
 451
 452     return major;
 453 }
 454
 455 OM_uint32
 456 gssEapExportName(OM_uint32 *minor,
 457                  const gss_name_t name,
 458                  gss_buffer_t exportedName)
 459 {
 460     return gssEapExportNameInternal(minor, name, exportedName,
 461                                     EXPORT_NAME_FLAG_OID);
 462 }
 463
 464 OM_uint32
 465 gssEapExportNameInternal(OM_uint32 *minor,
 466                          const gss_name_t name,
 467                          gss_buffer_t exportedName,
 468                          unsigned int flags)
 469 {
 470     OM_uint32 major = GSS_S_FAILURE, tmpMinor;
 471     krb5_context krbContext;
 472     char *krbName = NULL;
 473     size_t krbNameLen, exportedNameLen;
 474     unsigned char *p;
 475     gss_buffer_desc attrs = GSS_C_EMPTY_BUFFER;
 476     gss_OID mech;
 477
 478     exportedName->length = 0;
 479     exportedName->value = NULL;
 480
 481     if (name->mechanismUsed != GSS_C_NO_OID)
 482         mech = name->mechanismUsed;
 483     else
 484         mech = GSS_EAP_MECHANISM;
 485
 486     GSSEAP_KRB_INIT(&krbContext);
 487
 488     *minor = krb5_unparse_name(krbContext, name->krbPrincipal, &krbName);
 489     if (*minor != 0) {
 490         major = GSS_S_FAILURE;
 491         goto cleanup;
 492     }
 493     krbNameLen = strlen(krbName);
 494
 495     exportedNameLen = 0;
 496     if (flags & EXPORT_NAME_FLAG_OID) {
 497         exportedNameLen += 6 + mech->length;
 498     }
 499     exportedNameLen += 4 + krbNameLen;
 500     if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
 501         major = gssEapExportAttrContext(minor, name, &attrs);
 502         if (GSS_ERROR(major))
 503             goto cleanup;
 504         exportedNameLen += attrs.length;
 505     }
 506
 507     exportedName->value = GSSEAP_MALLOC(exportedNameLen);
 508     if (exportedName->value == NULL) {
 509         major = GSS_S_FAILURE;
 510         *minor = ENOMEM;
 511         goto cleanup;
 512     }
 513     exportedName->length = exportedNameLen;
 514
 515     p = (unsigned char *)exportedName->value;
 516
 517     if (flags & EXPORT_NAME_FLAG_OID) {
 518         /* TOK | MECH_OID_LEN */
 519         store_uint16_be((flags & EXPORT_NAME_FLAG_COMPOSITE)
 520                         ? TOK_TYPE_EXPORT_NAME_COMPOSITE
 521                         : TOK_TYPE_EXPORT_NAME,
 522                         p);
 523         p += 2;
 524         store_uint16_be(mech->length + 2, p);
 525         p += 2;
 526
 527         /* MECH_OID */
 528         *p++ = 0x06;
 529         *p++ = mech->length & 0xff;
 530         memcpy(p, mech->elements, mech->length);
 531         p += mech->length;
 532     }
 533
 534     /* NAME_LEN */
 535     store_uint32_be(krbNameLen, p);
 536     p += 4;
 537
 538     /* NAME */
 539     memcpy(p, krbName, krbNameLen);
 540     p += krbNameLen;
 541
 542     if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
 543         memcpy(p, attrs.value, attrs.length);
 544         p += attrs.length;
 545     }
 546
 547     assert(p == (unsigned char *)exportedName->value + exportedNameLen);
 548
 549     major = GSS_S_COMPLETE;
 550     *minor = 0;
 551
 552 cleanup:
 553     gss_release_buffer(&tmpMinor, &attrs);
 554     if (GSS_ERROR(major))
 555         gss_release_buffer(&tmpMinor, exportedName);
 556     krb5_free_unparsed_name(krbContext, krbName);
 557
 558     return major;
 559 }
 560
 561 OM_uint32
 562 gssEapCanonicalizeName(OM_uint32 *minor,
 563                        const gss_name_t input_name,
 564                        const gss_OID mech_type,
 565                        gss_name_t *dest_name)
 566 {
 567     OM_uint32 major, tmpMinor;
 568     krb5_context krbContext;
 569     gss_name_t name;
 570     gss_OID mech_used;
 571
 572     if (input_name == GSS_C_NO_NAME) {
 573         *minor = EINVAL;
 574         return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_BAD_NAME;
 575     }
 576
 577     GSSEAP_KRB_INIT(&krbContext);
 578
 579     major = gssEapAllocName(minor, &name);
 580     if (GSS_ERROR(major)) {
 581         return major;
 582     }
 583
 584     if (mech_type != GSS_C_NO_OID)
 585         mech_used = mech_type;
 586     else
 587         mech_used = input_name->mechanismUsed;
 588
 589     major = gssEapCanonicalizeOid(minor,
 590                                   mech_used,
 591                                   OID_FLAG_NULL_VALID,
 592                                   &name->mechanismUsed);
 593     if (GSS_ERROR(major))
 594         goto cleanup;
 595
 596     name->flags = input_name->flags;
 597
 598     *minor = krb5_copy_principal(krbContext, input_name->krbPrincipal,
 599                                  &name->krbPrincipal);
 600     if (*minor != 0) {
 601         major = GSS_S_FAILURE;
 602         goto cleanup;
 603     }
 604
 605     if (input_name->attrCtx != NULL) {
 606         major = gssEapDuplicateAttrContext(minor, input_name, name);
 607         if (GSS_ERROR(major))
 608             goto cleanup;
 609     }
 610
 611     *dest_name = name;
 612
 613 cleanup:
 614     if (GSS_ERROR(major)) {
 615         gssEapReleaseName(&tmpMinor, &name);
 616     }
 617
 618     return major;
 619 }
 620
 621 OM_uint32
 622 gssEapDuplicateName(OM_uint32 *minor,
 623                     const gss_name_t input_name,
 624                     gss_name_t *dest_name)
 625 {
 626     return gssEapCanonicalizeName(minor, input_name,
 627                                   GSS_C_NO_OID, dest_name);
 628 }
 629
 630 OM_uint32
 631 gssEapDisplayName(OM_uint32 *minor,
 632                   gss_name_t name,
 633                   gss_buffer_t output_name_buffer,
 634                   gss_OID *output_name_type)
 635 {
 636     OM_uint32 major;
 637     krb5_context krbContext;
 638     char *krbName;
 639     gss_OID name_type;
 640
 641     GSSEAP_KRB_INIT(&krbContext);
 642
 643     output_name_buffer->length = 0;
 644     output_name_buffer->value = NULL;
 645
 646     if (name == GSS_C_NO_NAME) {
 647         *minor = EINVAL;
 648         return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_BAD_NAME;
 649     }
 650
 651     *minor = krb5_unparse_name(krbContext, name->krbPrincipal, &krbName);
 652     if (*minor != 0) {
 653         return GSS_S_FAILURE;
 654     }
 655
 656     major = makeStringBuffer(minor, krbName, output_name_buffer);
 657     if (GSS_ERROR(major)) {
 658         krb5_free_unparsed_name(krbContext, krbName);
 659         return major;
 660     }
 661
 662     krb5_free_unparsed_name(krbContext, krbName);
 663
 664     if (KRB_PRINC_TYPE(name->krbPrincipal) == KRB5_NT_WELLKNOWN &&
 665         krb5_principal_compare(krbContext,
 666                                name->krbPrincipal, krbAnonymousPrincipal())) {
 667         name_type = GSS_C_NT_ANONYMOUS;
 668     } else {
 669         name_type = GSS_EAP_NT_PRINCIPAL_NAME;
 670     }
 671
 672     if (output_name_type != NULL)
 673         *output_name_type = name_type;
 674
 675     return GSS_S_COMPLETE;
 676 }