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 gssEapNtEapName = {
  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_EAP_NAME = &gssEapNtEapName;
  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_error_code code;
 159     krb5_context krbContext;
 160     krb5_principal krbPrinc;
 161     char *service, *host, *realm = NULL;
 162
 163     GSSEAP_KRB_INIT(&krbContext);
 164
 165     major = bufferToString(minor, nameBuffer, &service);
 166     if (GSS_ERROR(major))
 167         return major;
 168
 169     host = strchr(service, '@');
 170     if (host != NULL) {
 171         *host = '\0';
 172         host++;
 173     }
 174
 175     krb5_get_default_realm(krbContext, &realm);
 176
 177     code = krb5_build_principal(krbContext,
 178                                 &krbPrinc,
 179                                 realm != NULL ? strlen(realm) : 0,
 180                                 realm != NULL ? realm : "",
 181                                 service,
 182                                 host,
 183                                 NULL);
 184
 185     if (realm != NULL)
 186         krb5_free_default_realm(krbContext, realm);
 187
 188     if (code == 0) {
 189         KRB_PRINC_TYPE(krbPrinc) = KRB5_NT_SRV_HST;
 190
 191         major = krbPrincipalToName(minor, &krbPrinc, pName);
 192         if (GSS_ERROR(major))
 193             krb5_free_principal(krbContext, krbPrinc);
 194     } else {
 195         major = GSS_S_FAILURE;
 196         *minor = GSSEAP_BAD_SERVICE_NAME;
 197     }
 198
 199     GSSEAP_FREE(service);
 200
 201     return major;
 202 }
 203
 204 static OM_uint32
 205 importUserName(OM_uint32 *minor,
 206                const gss_buffer_t nameBuffer,
 207                gss_name_t *pName)
 208 {
 209     OM_uint32 major;
 210     krb5_context krbContext;
 211     krb5_principal krbPrinc;
 212     char *nameString, *realm = NULL;
 213     int flags = 0;
 214     krb5_error_code code;
 215
 216     GSSEAP_KRB_INIT(&krbContext);
 217
 218     code = krb5_get_default_realm(krbContext, &realm);
 219     if (code != 0 || realm == NULL)
 220         flags |= KRB5_PRINCIPAL_PARSE_REQUIRE_REALM;
 221     else
 222         krb5_free_default_realm(krbContext, realm);
 223
 224     if (nameBuffer == GSS_C_NO_BUFFER) {
 225         *minor = krb5_copy_principal(krbContext,
 226                                      krbAnonymousPrincipal(), &krbPrinc);
 227         if (*minor != 0)
 228             return GSS_S_FAILURE;
 229     } else {
 230         major = bufferToString(minor, nameBuffer, &nameString);
 231         if (GSS_ERROR(major))
 232             return major;
 233
 234         *minor = krb5_parse_name_flags(krbContext, nameString, flags, &krbPrinc);
 235         if (*minor != 0) {
 236             GSSEAP_FREE(nameString);
 237             return GSS_S_FAILURE;
 238         }
 239     }
 240
 241     major = krbPrincipalToName(minor, &krbPrinc, pName);
 242     if (GSS_ERROR(major)) {
 243         krb5_free_principal(krbContext, krbPrinc);
 244     }
 245
 246     GSSEAP_FREE(nameString);
 247     return major;
 248 }
 249
 250 static OM_uint32
 251 importAnonymousName(OM_uint32 *minor,
 252                     const gss_buffer_t nameBuffer GSSEAP_UNUSED,
 253                     gss_name_t *pName)
 254 {
 255     OM_uint32 major;
 256     krb5_context krbContext;
 257     krb5_principal krbPrinc;
 258
 259     GSSEAP_KRB_INIT(&krbContext);
 260
 261     *minor = krb5_copy_principal(krbContext, krbAnonymousPrincipal(),
 262                                  &krbPrinc);
 263     if (*minor != 0)
 264         return GSS_S_FAILURE;
 265
 266     major = krbPrincipalToName(minor, &krbPrinc, pName);
 267     if (GSS_ERROR(major)) {
 268         krb5_free_principal(krbContext, krbPrinc);
 269     }
 270
 271     return major;
 272 }
 273
 274 #define UPDATE_REMAIN(n)    do {            \
 275         p += (n);                           \
 276         remain -= (n);                      \
 277     } while (0)
 278
 279 #define CHECK_REMAIN(n)     do {        \
 280         if (remain < (n)) {             \
 281             major = GSS_S_BAD_NAME;     \
 282             *minor = GSSEAP_TOK_TRUNC;  \
 283             goto cleanup;               \
 284         }                               \
 285     } while (0)
 286
 287 OM_uint32
 288 gssEapImportNameInternal(OM_uint32 *minor,
 289                          const gss_buffer_t nameBuffer,
 290                          gss_name_t *pName,
 291                          unsigned int flags)
 292 {
 293     OM_uint32 major, tmpMinor;
 294     krb5_context krbContext;
 295     unsigned char *p;
 296     size_t len, remain;
 297     gss_buffer_desc buf;
 298     enum gss_eap_token_type tokType;
 299     gss_name_t name = GSS_C_NO_NAME;
 300     gss_OID mechanismUsed = GSS_C_NO_OID;
 301
 302     GSSEAP_KRB_INIT(&krbContext);
 303
 304     p = (unsigned char *)nameBuffer->value;
 305     remain = nameBuffer->length;
 306
 307     if (flags & EXPORT_NAME_FLAG_OID) {
 308         gss_OID_desc mech;
 309
 310         /* TOK_ID || MECH_OID_LEN || MECH_OID */
 311         if (remain < 6)
 312             return GSS_S_BAD_NAME;
 313
 314         if (flags & EXPORT_NAME_FLAG_COMPOSITE)
 315             tokType = TOK_TYPE_EXPORT_NAME_COMPOSITE;
 316         else
 317             tokType = TOK_TYPE_EXPORT_NAME;
 318
 319         /* TOK_ID */
 320         if (load_uint16_be(p) != tokType)
 321             return GSS_S_BAD_NAME;
 322         UPDATE_REMAIN(2);
 323
 324         /* MECH_OID_LEN */
 325         len = load_uint16_be(p);
 326         if (len < 2)
 327             return GSS_S_BAD_NAME;
 328         UPDATE_REMAIN(2);
 329
 330         /* MECH_OID */
 331         if (p[0] != 0x06)
 332             return GSS_S_BAD_NAME;
 333
 334         mech.length = p[1];
 335         mech.elements = &p[2];
 336
 337         CHECK_REMAIN(mech.length);
 338
 339         major = gssEapCanonicalizeOid(minor,
 340                                       &mech,
 341                                       OID_FLAG_FAMILY_MECH_VALID |
 342                                         OID_FLAG_MAP_FAMILY_MECH_TO_NULL,
 343                                       &mechanismUsed);
 344         if (GSS_ERROR(major))
 345             goto cleanup;
 346
 347         UPDATE_REMAIN(2 + mech.length);
 348     }
 349
 350     /* NAME_LEN */
 351     CHECK_REMAIN(4);
 352     len = load_uint32_be(p);
 353     UPDATE_REMAIN(4);
 354
 355     /* NAME */
 356     CHECK_REMAIN(len);
 357     buf.length = len;
 358     buf.value = p;
 359     UPDATE_REMAIN(len);
 360
 361     major = importUserName(minor, &buf, &name);
 362     if (GSS_ERROR(major))
 363         goto cleanup;
 364
 365     name->mechanismUsed = mechanismUsed;
 366     mechanismUsed = GSS_C_NO_OID;
 367
 368     if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
 369         gss_buffer_desc buf;
 370
 371         buf.length = remain;
 372         buf.value = p;
 373
 374         major = gssEapImportAttrContext(minor, &buf, name);
 375         if (GSS_ERROR(major))
 376             goto cleanup;
 377     }
 378
 379     major = GSS_S_COMPLETE;
 380     *minor = 0;
 381
 382 cleanup:
 383     if (GSS_ERROR(major)) {
 384         gssEapReleaseOid(&tmpMinor, &mechanismUsed);
 385         gssEapReleaseName(&tmpMinor, &name);
 386     } else {
 387         *pName = name;
 388     }
 389
 390     return major;
 391 }
 392
 393 static OM_uint32
 394 importExportName(OM_uint32 *minor,
 395                  const gss_buffer_t nameBuffer,
 396                  gss_name_t *name)
 397 {
 398     return gssEapImportNameInternal(minor, nameBuffer, name,
 399                                     EXPORT_NAME_FLAG_OID);
 400 }
 401
 402 #ifdef HAVE_GSS_C_NT_COMPOSITE_EXPORT
 403 static OM_uint32
 404 importCompositeExportName(OM_uint32 *minor,
 405                           const gss_buffer_t nameBuffer,
 406                           gss_name_t *name)
 407 {
 408     return gssEapImportNameInternal(minor, nameBuffer, name,
 409                                     EXPORT_NAME_FLAG_OID |
 410                                     EXPORT_NAME_FLAG_COMPOSITE);
 411 }
 412 #endif
 413
 414 struct gss_eap_name_import_provider {
 415     gss_const_OID oid;
 416     OM_uint32 (*import)(OM_uint32 *, const gss_buffer_t, gss_name_t *);
 417 };
 418
 419 OM_uint32
 420 gssEapImportName(OM_uint32 *minor,
 421                  const gss_buffer_t nameBuffer,
 422                  const gss_OID nameType,
 423                  const gss_OID mechType,
 424                  gss_name_t *pName)
 425 {
 426     struct gss_eap_name_import_provider nameTypes[] = {
 427         { GSS_EAP_NT_EAP_NAME,              importUserName              },
 428         { GSS_C_NT_USER_NAME,               importUserName              },
 429         { GSS_C_NT_HOSTBASED_SERVICE,       importServiceName           },
 430         { GSS_C_NT_HOSTBASED_SERVICE_X,     importServiceName           },
 431         { GSS_C_NT_ANONYMOUS,               importAnonymousName         },
 432         { GSS_C_NT_EXPORT_NAME,             importExportName            },
 433         { GSS_KRB5_NT_PRINCIPAL_NAME,       importUserName              },
 434 #ifdef HAVE_GSS_C_NT_COMPOSITE_EXPORT
 435         { GSS_C_NT_COMPOSITE_EXPORT,        importCompositeExportName   },
 436 #endif
 437     };
 438     size_t i;
 439     OM_uint32 major = GSS_S_BAD_NAMETYPE;
 440     OM_uint32 tmpMinor;
 441     gss_name_t name = GSS_C_NO_NAME;
 442
 443     for (i = 0; i < sizeof(nameTypes) / sizeof(nameTypes[0]); i++) {
 444         if (oidEqual(nameTypes[i].oid,
 445                      nameType == GSS_C_NO_OID ? GSS_EAP_NT_EAP_NAME : nameType)) {
 446             major = nameTypes[i].import(minor, nameBuffer, &name);
 447             break;
 448         }
 449     }
 450
 451     if (major == GSS_S_COMPLETE &&
 452         mechType != GSS_C_NO_OID) {
 453         assert(gssEapIsConcreteMechanismOid(mechType));
 454         assert(name->mechanismUsed == GSS_C_NO_OID);
 455
 456         major = gssEapCanonicalizeOid(minor, mechType, 0, &name->mechanismUsed);
 457     }
 458
 459     if (GSS_ERROR(major))
 460         gssEapReleaseName(&tmpMinor, &name);
 461     else
 462         *pName = name;
 463
 464     return major;
 465 }
 466
 467 OM_uint32
 468 gssEapExportName(OM_uint32 *minor,
 469                  const gss_name_t name,
 470                  gss_buffer_t exportedName)
 471 {
 472     return gssEapExportNameInternal(minor, name, exportedName,
 473                                     EXPORT_NAME_FLAG_OID);
 474 }
 475
 476 OM_uint32
 477 gssEapExportNameInternal(OM_uint32 *minor,
 478                          const gss_name_t name,
 479                          gss_buffer_t exportedName,
 480                          unsigned int flags)
 481 {
 482     OM_uint32 major = GSS_S_FAILURE, tmpMinor;
 483     krb5_context krbContext;
 484     char *krbName = NULL;
 485     size_t krbNameLen, exportedNameLen;
 486     unsigned char *p;
 487     gss_buffer_desc attrs = GSS_C_EMPTY_BUFFER;
 488     gss_OID mech;
 489
 490     exportedName->length = 0;
 491     exportedName->value = NULL;
 492
 493     if (name->mechanismUsed != GSS_C_NO_OID)
 494         mech = name->mechanismUsed;
 495     else
 496         mech = GSS_EAP_MECHANISM;
 497
 498     GSSEAP_KRB_INIT(&krbContext);
 499
 500     *minor = krb5_unparse_name(krbContext, name->krbPrincipal, &krbName);
 501     if (*minor != 0) {
 502         major = GSS_S_FAILURE;
 503         goto cleanup;
 504     }
 505     krbNameLen = strlen(krbName);
 506
 507     exportedNameLen = 0;
 508     if (flags & EXPORT_NAME_FLAG_OID) {
 509         exportedNameLen += 6 + mech->length;
 510     }
 511     exportedNameLen += 4 + krbNameLen;
 512     if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
 513         major = gssEapExportAttrContext(minor, name, &attrs);
 514         if (GSS_ERROR(major))
 515             goto cleanup;
 516         exportedNameLen += attrs.length;
 517     }
 518
 519     exportedName->value = GSSEAP_MALLOC(exportedNameLen);
 520     if (exportedName->value == NULL) {
 521         major = GSS_S_FAILURE;
 522         *minor = ENOMEM;
 523         goto cleanup;
 524     }
 525     exportedName->length = exportedNameLen;
 526
 527     p = (unsigned char *)exportedName->value;
 528
 529     if (flags & EXPORT_NAME_FLAG_OID) {
 530         /* TOK | MECH_OID_LEN */
 531         store_uint16_be((flags & EXPORT_NAME_FLAG_COMPOSITE)
 532                         ? TOK_TYPE_EXPORT_NAME_COMPOSITE
 533                         : TOK_TYPE_EXPORT_NAME,
 534                         p);
 535         p += 2;
 536         store_uint16_be(mech->length + 2, p);
 537         p += 2;
 538
 539         /* MECH_OID */
 540         *p++ = 0x06;
 541         *p++ = mech->length & 0xff;
 542         memcpy(p, mech->elements, mech->length);
 543         p += mech->length;
 544     }
 545
 546     /* NAME_LEN */
 547     store_uint32_be(krbNameLen, p);
 548     p += 4;
 549
 550     /* NAME */
 551     memcpy(p, krbName, krbNameLen);
 552     p += krbNameLen;
 553
 554     if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
 555         memcpy(p, attrs.value, attrs.length);
 556         p += attrs.length;
 557     }
 558
 559     assert(p == (unsigned char *)exportedName->value + exportedNameLen);
 560
 561     major = GSS_S_COMPLETE;
 562     *minor = 0;
 563
 564 cleanup:
 565     gss_release_buffer(&tmpMinor, &attrs);
 566     if (GSS_ERROR(major))
 567         gss_release_buffer(&tmpMinor, exportedName);
 568     krb5_free_unparsed_name(krbContext, krbName);
 569
 570     return major;
 571 }
 572
 573 OM_uint32
 574 gssEapCanonicalizeName(OM_uint32 *minor,
 575                        const gss_name_t input_name,
 576                        const gss_OID mech_type,
 577                        gss_name_t *dest_name)
 578 {
 579     OM_uint32 major, tmpMinor;
 580     krb5_context krbContext;
 581     gss_name_t name;
 582     gss_OID mech_used;
 583
 584     if (input_name == GSS_C_NO_NAME) {
 585         *minor = EINVAL;
 586         return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_BAD_NAME;
 587     }
 588
 589     GSSEAP_KRB_INIT(&krbContext);
 590
 591     major = gssEapAllocName(minor, &name);
 592     if (GSS_ERROR(major)) {
 593         return major;
 594     }
 595
 596     if (mech_type != GSS_C_NO_OID)
 597         mech_used = mech_type;
 598     else
 599         mech_used = input_name->mechanismUsed;
 600
 601     major = gssEapCanonicalizeOid(minor,
 602                                   mech_used,
 603                                   OID_FLAG_NULL_VALID,
 604                                   &name->mechanismUsed);
 605     if (GSS_ERROR(major))
 606         goto cleanup;
 607
 608     name->flags = input_name->flags;
 609
 610     *minor = krb5_copy_principal(krbContext, input_name->krbPrincipal,
 611                                  &name->krbPrincipal);
 612     if (*minor != 0) {
 613         major = GSS_S_FAILURE;
 614         goto cleanup;
 615     }
 616
 617     if (input_name->attrCtx != NULL) {
 618         major = gssEapDuplicateAttrContext(minor, input_name, name);
 619         if (GSS_ERROR(major))
 620             goto cleanup;
 621     }
 622
 623     *dest_name = name;
 624
 625 cleanup:
 626     if (GSS_ERROR(major)) {
 627         gssEapReleaseName(&tmpMinor, &name);
 628     }
 629
 630     return major;
 631 }
 632
 633 OM_uint32
 634 gssEapDuplicateName(OM_uint32 *minor,
 635                     const gss_name_t input_name,
 636                     gss_name_t *dest_name)
 637 {
 638     return gssEapCanonicalizeName(minor, input_name,
 639                                   GSS_C_NO_OID, dest_name);
 640 }
 641
 642 OM_uint32
 643 gssEapDisplayName(OM_uint32 *minor,
 644                   gss_name_t name,
 645                   gss_buffer_t output_name_buffer,
 646                   gss_OID *output_name_type)
 647 {
 648     OM_uint32 major;
 649     krb5_context krbContext;
 650     char *krbName;
 651     gss_OID name_type;
 652
 653     GSSEAP_KRB_INIT(&krbContext);
 654
 655     output_name_buffer->length = 0;
 656     output_name_buffer->value = NULL;
 657
 658     if (name == GSS_C_NO_NAME) {
 659         *minor = EINVAL;
 660         return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_BAD_NAME;
 661     }
 662
 663     *minor = krb5_unparse_name(krbContext, name->krbPrincipal, &krbName);
 664     if (*minor != 0) {
 665         return GSS_S_FAILURE;
 666     }
 667
 668     major = makeStringBuffer(minor, krbName, output_name_buffer);
 669     if (GSS_ERROR(major)) {
 670         krb5_free_unparsed_name(krbContext, krbName);
 671         return major;
 672     }
 673
 674     krb5_free_unparsed_name(krbContext, krbName);
 675
 676     if (KRB_PRINC_TYPE(name->krbPrincipal) == KRB5_NT_WELLKNOWN &&
 677         krb5_principal_compare(krbContext,
 678                                name->krbPrincipal, krbAnonymousPrincipal())) {
 679         name_type = GSS_C_NT_ANONYMOUS;
 680     } else {
 681         name_type = GSS_EAP_NT_EAP_NAME;
 682     }
 683
 684     if (output_name_type != NULL)
 685         *output_name_type = name_type;
 686
 687     return GSS_S_COMPLETE;
 688 }