www.project-moonshot.org Git - mech_eap.orig/blob - util.h

   1 /*
   2  * Copyright (c) 2010, 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 2003-2010 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 #ifndef _UTIL_H_
  58 #define _UTIL_H_ 1
  59
  60 #include <sys/param.h>
  61 #include <string.h>
  62 #include <errno.h>
  63
  64 #include <krb5.h>
  65
  66 #ifdef __cplusplus
  67 extern "C" {
  68 #endif
  69
  70 #ifndef MIN
  71 #define MIN(_a,_b)  ((_a)<(_b)?(_a):(_b))
  72 #endif
  73
  74 /* util_buffer.c */
  75 OM_uint32
  76 makeStringBuffer(OM_uint32 *minor,
  77                  const char *string,
  78                  gss_buffer_t buffer);
  79
  80 OM_uint32
  81 bufferToString(OM_uint32 *minor,
  82                const gss_buffer_t buffer,
  83                char **pString);
  84
  85 OM_uint32
  86 duplicateBuffer(OM_uint32 *minor,
  87                 const gss_buffer_t src,
  88                 gss_buffer_t dst);
  89
  90 static inline int
  91 bufferEqual(const gss_buffer_t b1, const gss_buffer_t b2)
  92 {
  93     return (b1->length == b2->length &&
  94             memcmp(b1->value, b2->value, b2->length) == 0);
  95 }
  96
  97 static inline int
  98 bufferEqualString(const gss_buffer_t b1, const char *s)
  99 {
 100     gss_buffer_desc b2;
 101
 102     b2.length = strlen(s);
 103     b2.value = (char *)s;
 104
 105     return bufferEqual(b1, &b2);
 106 }
 107
 108 /* util_cksum.c */
 109 int
 110 gssEapSign(krb5_context context,
 111            krb5_cksumtype type,
 112            size_t rrc,
 113            krb5_keyblock *key,
 114            krb5_keyusage sign_usage,
 115            gss_iov_buffer_desc *iov,
 116            int iov_count);
 117
 118 int
 119 gssEapVerify(krb5_context context,
 120              krb5_cksumtype type,
 121              size_t rrc,
 122              krb5_keyblock *key,
 123              krb5_keyusage sign_usage,
 124              gss_iov_buffer_desc *iov,
 125              int iov_count,
 126              int *valid);
 127
 128 #if 0
 129 OM_uint32
 130 gssEapEncodeGssChannelBindings(OM_uint32 *minor,
 131                                gss_channel_bindings_t chanBindings,
 132                                gss_buffer_t encodedBindings);
 133 #endif
 134
 135 /* util_context.c */
 136 #define EAP_EXPORT_CONTEXT_V1           1
 137
 138 enum gss_eap_token_type {
 139     TOK_TYPE_NONE                    = 0x0000,  /* no token */
 140     TOK_TYPE_MIC                     = 0x0404,  /* RFC 4121 MIC token */
 141     TOK_TYPE_WRAP                    = 0x0504,  /* RFC 4121 wrap token */
 142     TOK_TYPE_EXPORT_NAME             = 0x0401,  /* RFC 2743 exported name */
 143     TOK_TYPE_EXPORT_NAME_COMPOSITE   = 0x0402,  /* exported composite name */
 144     TOK_TYPE_DELETE_CONTEXT          = 0x0405,  /* RFC 2743 delete context */
 145     TOK_TYPE_EAP_RESP                = 0x0601,  /* EAP response */
 146     TOK_TYPE_EAP_REQ                 = 0x0602,  /* EAP request */
 147     TOK_TYPE_EXT_REQ                 = 0x0603,  /* GSS EAP extensions request */
 148     TOK_TYPE_EXT_RESP                = 0x0604,  /* GSS EAP extensions response */
 149     TOK_TYPE_GSS_REAUTH              = 0x0605,  /* GSS EAP fast reauthentication token */
 150     TOK_TYPE_CONTEXT_ERR             = 0x0606,  /* context error */
 151 };
 152
 153 OM_uint32 gssEapAllocContext(OM_uint32 *minor, gss_ctx_id_t *pCtx);
 154 OM_uint32 gssEapReleaseContext(OM_uint32 *minor, gss_ctx_id_t *pCtx);
 155
 156 OM_uint32
 157 gssEapMakeToken(OM_uint32 *minor,
 158                 gss_ctx_id_t ctx,
 159                 const gss_buffer_t innerToken,
 160                 enum gss_eap_token_type tokenType,
 161                 gss_buffer_t outputToken);
 162
 163 OM_uint32
 164 gssEapVerifyToken(OM_uint32 *minor,
 165                   gss_ctx_id_t ctx,
 166                   const gss_buffer_t inputToken,
 167                   enum gss_eap_token_type *tokenType,
 168                   gss_buffer_t innerInputToken);
 169
 170 OM_uint32
 171 gssEapContextTime(OM_uint32 *minor,
 172                   gss_ctx_id_t context_handle,
 173                   OM_uint32 *time_rec);
 174
 175 OM_uint32
 176 gssEapDisplayName(OM_uint32 *minor,
 177                   gss_name_t name,
 178                   gss_buffer_t output_name_buffer,
 179                   gss_OID *output_name_type);
 180
 181 /* util_cred.c */
 182 OM_uint32 gssEapAllocCred(OM_uint32 *minor, gss_cred_id_t *pCred);
 183 OM_uint32 gssEapReleaseCred(OM_uint32 *minor, gss_cred_id_t *pCred);
 184
 185 OM_uint32
 186 gssEapAcquireCred(OM_uint32 *minor,
 187                   const gss_name_t desiredName,
 188                   const gss_buffer_t password,
 189                   OM_uint32 timeReq,
 190                   const gss_OID_set desiredMechs,
 191                   int cred_usage,
 192                   gss_cred_id_t *pCred,
 193                   gss_OID_set *pActualMechs,
 194                   OM_uint32 *timeRec);
 195
 196 int gssEapCredAvailable(gss_cred_id_t cred, gss_OID mech);
 197
 198 /* util_crypt.c */
 199 int
 200 gssEapEncrypt(krb5_context context, int dce_style, size_t ec,
 201               size_t rrc, krb5_keyblock *key, int usage, krb5_pointer iv,
 202               gss_iov_buffer_desc *iov, int iov_count);
 203
 204 int
 205 gssEapDecrypt(krb5_context context, int dce_style, size_t ec,
 206               size_t rrc, krb5_keyblock *key, int usage, krb5_pointer iv,
 207               gss_iov_buffer_desc *iov, int iov_count);
 208
 209 krb5_cryptotype
 210 gssEapMapCryptoFlag(OM_uint32 type);
 211
 212 gss_iov_buffer_t
 213 gssEapLocateIov(gss_iov_buffer_desc *iov,
 214                 int iov_count,
 215                 OM_uint32 type);
 216
 217 void
 218 gssEapIovMessageLength(gss_iov_buffer_desc *iov,
 219                        int iov_count,
 220                        size_t *data_length,
 221                        size_t *assoc_data_length);
 222
 223 void
 224 gssEapReleaseIov(gss_iov_buffer_desc *iov, int iov_count);
 225
 226 int
 227 gssEapIsIntegrityOnly(gss_iov_buffer_desc *iov, int iov_count);
 228
 229 int
 230 gssEapAllocIov(gss_iov_buffer_t iov, size_t size);
 231
 232 OM_uint32
 233 gssEapDeriveRfc3961Key(OM_uint32 *minor,
 234                        const unsigned char *key,
 235                        size_t keyLength,
 236                        krb5_enctype enctype,
 237                        krb5_keyblock *pKey);
 238
 239 /* util_exts.c */
 240 #define EXT_FLAG_CRITICAL               0x80000000
 241 #define EXT_FLAG_VERIFIED               0x40000000
 242
 243 #define EXT_TYPE_GSS_CHANNEL_BINDINGS   0x00000000
 244 #define EXT_TYPE_REAUTH_CREDS           0x00000001
 245 #define EXT_TYPE_MASK                   (~(EXT_FLAG_CRITICAL | EXT_FLAG_VERIFIED))
 246
 247 struct gss_eap_extension_provider {
 248     OM_uint32 type;
 249     int critical; /* client */
 250     int required; /* server */
 251     OM_uint32 (*make)(OM_uint32 *,
 252                       gss_cred_id_t,
 253                       gss_ctx_id_t,
 254                       gss_channel_bindings_t,
 255                       gss_buffer_t);
 256     OM_uint32 (*verify)(OM_uint32 *,
 257                         gss_cred_id_t,
 258                         gss_ctx_id_t,
 259                         gss_channel_bindings_t,
 260                         const gss_buffer_t);
 261 };
 262
 263 OM_uint32
 264 gssEapMakeExtensions(OM_uint32 *minor,
 265                      gss_cred_id_t cred,
 266                      gss_ctx_id_t ctx,
 267                      gss_channel_bindings_t chanBindings,
 268                      gss_buffer_t buffer);
 269
 270 OM_uint32
 271 gssEapVerifyExtensions(OM_uint32 *minor,
 272                        gss_cred_id_t cred,
 273                        gss_ctx_id_t ctx,
 274                        gss_channel_bindings_t chanBindings,
 275                        const gss_buffer_t buffer);
 276
 277 /* util_krb.c */
 278 #define KRB_KEY_TYPE(key)       ((key)->enctype)
 279 #define KRB_KEY_DATA(key)       ((key)->contents)
 280 #define KRB_KEY_LENGTH(key)     ((key)->length)
 281 #define KRB_KEY_INIT(key)       do {        \
 282         KRB_KEY_TYPE(key) = ENCTYPE_NULL;   \
 283         KRB_KEY_DATA(key) = NULL;           \
 284         KRB_KEY_LENGTH(key) = 0;            \
 285     } while (0)
 286
 287 #define GSSEAP_KRB_INIT(ctx) do {                   \
 288         OM_uint32 tmpMajor;                         \
 289                                                     \
 290         tmpMajor  = gssEapKerberosInit(minor, ctx); \
 291         if (GSS_ERROR(tmpMajor)) {                  \
 292             return tmpMajor;                        \
 293         }                                           \
 294     } while (0)
 295
 296 OM_uint32
 297 gssEapKerberosInit(OM_uint32 *minor, krb5_context *context);
 298
 299 OM_uint32
 300 rfc3961ChecksumTypeForKey(OM_uint32 *minor,
 301                           krb5_keyblock *key,
 302                           krb5_cksumtype *cksumtype);
 303
 304 /* util_lucid.c */
 305 OM_uint32
 306 gssEapExportLucidSecContext(OM_uint32 *minor,
 307                             gss_ctx_id_t ctx,
 308                             const gss_OID desiredObject,
 309                             gss_buffer_set_t *data_set);
 310
 311 /* util_mech.c */
 312 extern gss_OID GSS_EAP_MECHANISM;
 313
 314 int
 315 gssEapInternalizeOid(const gss_OID oid,
 316                      gss_OID *const pInternalizedOid);
 317
 318 OM_uint32
 319 gssEapDefaultMech(OM_uint32 *minor,
 320                   gss_OID *oid);
 321
 322 OM_uint32
 323 gssEapIndicateMechs(OM_uint32 *minor,
 324                     gss_OID_set *mechs);
 325
 326 OM_uint32
 327 gssEapEnctypeToOid(OM_uint32 *minor,
 328                    krb5_enctype enctype,
 329                    gss_OID *pOid);
 330
 331 OM_uint32
 332 gssEapOidToEnctype(OM_uint32 *minor,
 333                    const gss_OID oid,
 334                    krb5_enctype *enctype);
 335
 336 int
 337 gssEapIsMechanismOid(const gss_OID oid);
 338
 339 int
 340 gssEapIsConcreteMechanismOid(const gss_OID oid);
 341
 342 OM_uint32
 343 gssEapValidateMechs(OM_uint32 *minor,
 344                    const gss_OID_set mechs);
 345
 346 gss_buffer_t
 347 gssEapOidToSaslName(const gss_OID oid);
 348
 349 gss_OID
 350 gssEapSaslNameToOid(const gss_buffer_t name);
 351
 352 /* util_name.c */
 353 #define EXPORT_NAME_FLAG_OID        0x1
 354 #define EXPORT_NAME_FLAG_COMPOSITE  0x2
 355
 356 OM_uint32 gssEapAllocName(OM_uint32 *minor, gss_name_t *pName);
 357 OM_uint32 gssEapReleaseName(OM_uint32 *minor, gss_name_t *pName);
 358 OM_uint32 gssEapExportName(OM_uint32 *minor,
 359                            const gss_name_t name,
 360                            gss_buffer_t exportedName);
 361 OM_uint32 gssEapExportNameInternal(OM_uint32 *minor,
 362                                    const gss_name_t name,
 363                                    gss_buffer_t exportedName,
 364                                    unsigned int flags);
 365 OM_uint32 gssEapImportName(OM_uint32 *minor,
 366                            const gss_buffer_t input_name_buffer,
 367                            gss_OID input_name_type,
 368                            gss_name_t *output_name);
 369 OM_uint32 gssEapImportNameInternal(OM_uint32 *minor,
 370                                    const gss_buffer_t input_name_buffer,
 371                                    gss_name_t *output_name,
 372                                    unsigned int flags);
 373 OM_uint32
 374 gssEapDuplicateName(OM_uint32 *minor,
 375                     const gss_name_t input_name,
 376                     gss_name_t *dest_name);
 377
 378 /* util_oid.c */
 379 OM_uint32
 380 composeOid(OM_uint32 *minor_status,
 381            const char *prefix,
 382            size_t prefix_len,
 383            int suffix,
 384            gss_OID_desc *oid);
 385
 386 OM_uint32
 387 decomposeOid(OM_uint32 *minor_status,
 388              const char *prefix,
 389              size_t prefix_len,
 390              gss_OID_desc *oid,
 391              int *suffix) ;
 392
 393 OM_uint32
 394 duplicateOid(OM_uint32 *minor_status,
 395              const gss_OID_desc * const oid,
 396              gss_OID *new_oid);
 397
 398 OM_uint32
 399 duplicateOidSet(OM_uint32 *minor,
 400                 const gss_OID_set src,
 401                 gss_OID_set *dst);
 402
 403 static inline int
 404 oidEqual(const gss_OID_desc *o1, const gss_OID_desc *o2)
 405 {
 406     if (o1 == GSS_C_NO_OID)
 407         return (o2 == GSS_C_NO_OID);
 408     else if (o2 == GSS_C_NO_OID)
 409         return (o1 == GSS_C_NO_OID);
 410     else
 411         return (o1->length == o2->length &&
 412                 memcmp(o1->elements, o2->elements, o1->length) == 0);
 413 }
 414
 415 /* util_ordering.c */
 416 OM_uint32
 417 sequenceInternalize(OM_uint32 *minor,
 418                     void **vqueue,
 419                     unsigned char **buf,
 420                     size_t *lenremain);
 421
 422 OM_uint32
 423 sequenceExternalize(OM_uint32 *minor,
 424                     void *vqueue,
 425                     unsigned char **buf,
 426                     size_t *lenremain);
 427
 428 size_t
 429 sequenceSize(void *vqueue);
 430
 431 OM_uint32
 432 sequenceFree(OM_uint32 *minor, void **vqueue);
 433
 434 OM_uint32
 435 sequenceCheck(OM_uint32 *minor, void **vqueue, uint64_t seqnum);
 436
 437 OM_uint32
 438 sequenceInit(OM_uint32 *minor, void **vqueue, uint64_t seqnum,
 439              int do_replay, int do_sequence, int wide_nums);
 440
 441 /* util_token.c */
 442 size_t
 443 tokenSize(const gss_OID_desc *mech, size_t body_size);
 444
 445 void
 446 makeTokenHeader(const gss_OID_desc *mech,
 447                 size_t body_size,
 448                 unsigned char **buf,
 449                 enum gss_eap_token_type tok_type);
 450
 451 OM_uint32
 452 verifyTokenHeader(OM_uint32 *minor,
 453                   gss_OID mech,
 454                   size_t *body_size,
 455                   unsigned char **buf_in,
 456                   size_t toksize_in,
 457                   enum gss_eap_token_type *ret_tok_type);
 458
 459 /* Helper macros */
 460
 461 #define GSSEAP_CALLOC                   calloc
 462 #define GSSEAP_MALLOC                   malloc
 463 #define GSSEAP_FREE                     free
 464 #define GSSEAP_REALLOC                  realloc
 465
 466 #define GSSEAP_NOT_IMPLEMENTED          do {            \
 467         assert(0 && "not implemented");                 \
 468         *minor = ENOSYS;                                \
 469         return GSS_S_FAILURE;                           \
 470     } while (0)
 471
 472 #include <pthread.h>
 473
 474 #define GSSEAP_MUTEX                    pthread_mutex_t
 475 #define GSSEAP_MUTEX_INITIALIZER        PTHREAD_MUTEX_INITIALIZER
 476
 477 #define GSSEAP_MUTEX_INIT(m)            pthread_mutex_init((m), NULL)
 478 #define GSSEAP_MUTEX_DESTROY(m)         pthread_mutex_destroy((m))
 479 #define GSSEAP_MUTEX_LOCK(m)            pthread_mutex_lock((m))
 480 #define GSSEAP_MUTEX_UNLOCK(m)          pthread_mutex_unlock((m))
 481
 482 #define GSSEAP_THREAD_KEY               pthread_key_t
 483 #define GSSEAP_KEY_CREATE(k, d)         pthread_key_create((k), (d))
 484 #define GSSEAP_GETSPECIFIC(k)           pthread_getspecific((k))
 485 #define GSSEAP_SETSPECIFIC(k, d)        pthread_setspecific((k), (d))
 486
 487 #define GSSEAP_THREAD_ONCE              pthread_once_t
 488 #define GSSEAP_ONCE(o, i)               pthread_once((o), (i))
 489 #define GSSEAP_ONCE_INITIALIZER         PTHREAD_ONCE_INIT
 490
 491 /* Helper functions */
 492 static inline void
 493 store_uint16_be(uint16_t val, void *vp)
 494 {
 495     unsigned char *p = (unsigned char *)vp;
 496
 497     p[0] = (val >>  8) & 0xff;
 498     p[1] = (val      ) & 0xff;
 499 }
 500
 501 static inline uint16_t
 502 load_uint16_be(const void *cvp)
 503 {
 504     const unsigned char *p = (const unsigned char *)cvp;
 505
 506     return (p[1] | (p[0] << 8));
 507 }
 508
 509 static inline void
 510 store_uint32_be(uint32_t val, void *vp)
 511 {
 512     unsigned char *p = (unsigned char *)vp;
 513
 514     p[0] = (val >> 24) & 0xff;
 515     p[1] = (val >> 16) & 0xff;
 516     p[2] = (val >>  8) & 0xff;
 517     p[3] = (val      ) & 0xff;
 518 }
 519
 520 static inline uint32_t
 521 load_uint32_be(const void *cvp)
 522 {
 523     const unsigned char *p = (const unsigned char *)cvp;
 524
 525     return (p[3] | (p[2] << 8)
 526             | ((uint32_t) p[1] << 16)
 527             | ((uint32_t) p[0] << 24));
 528 }
 529
 530 static inline void
 531 store_uint64_be(uint64_t val, void *vp)
 532 {
 533     unsigned char *p = (unsigned char *)vp;
 534
 535     p[0] = (unsigned char)((val >> 56) & 0xff);
 536     p[1] = (unsigned char)((val >> 48) & 0xff);
 537     p[2] = (unsigned char)((val >> 40) & 0xff);
 538     p[3] = (unsigned char)((val >> 32) & 0xff);
 539     p[4] = (unsigned char)((val >> 24) & 0xff);
 540     p[5] = (unsigned char)((val >> 16) & 0xff);
 541     p[6] = (unsigned char)((val >>  8) & 0xff);
 542     p[7] = (unsigned char)((val      ) & 0xff);
 543 }
 544
 545 static inline uint64_t
 546 load_uint64_be(const void *cvp)
 547 {
 548     const unsigned char *p = (const unsigned char *)cvp;
 549
 550     return ((uint64_t)load_uint32_be(p) << 32) | load_uint32_be(p + 4);
 551 }
 552
 553 static inline unsigned char *
 554 store_buffer(gss_buffer_t buffer, void *vp, int wide_nums)
 555 {
 556     unsigned char *p = (unsigned char *)vp;
 557
 558     if (wide_nums) {
 559         store_uint64_be(buffer->length, p);
 560         p += 8;
 561     } else {
 562         store_uint32_be(buffer->length, p);
 563         p += 4;
 564     }
 565
 566     if (buffer->value != NULL) {
 567         memcpy(p, buffer->value, buffer->length);
 568         p += buffer->length;
 569     }
 570
 571     return p;
 572 }
 573
 574 static inline unsigned char *
 575 load_buffer(const void *cvp, size_t length, gss_buffer_t buffer)
 576 {
 577     buffer->length = 0;
 578     buffer->value = GSSEAP_MALLOC(length);
 579     if (buffer->value == NULL)
 580         return NULL;
 581     buffer->length = length;
 582     memcpy(buffer->value, cvp, length);
 583     return (unsigned char *)cvp + length;
 584 }
 585
 586 static inline unsigned char *
 587 store_oid(gss_OID oid, void *vp)
 588 {
 589     gss_buffer_desc buf;
 590
 591     if (oid != GSS_C_NO_OID) {
 592         buf.length = oid->length;
 593         buf.value = oid->elements;
 594     } else {
 595         buf.length = 0;
 596         buf.value = NULL;
 597     }
 598
 599     return store_buffer(&buf, vp, FALSE);
 600 }
 601
 602 static inline void
 603 krbDataToGssBuffer(krb5_data *data, gss_buffer_t buffer)
 604 {
 605     buffer->value = (void *)data->data;
 606     buffer->length = data->length;
 607 }
 608
 609 static inline void
 610 gssBufferToKrbData(gss_buffer_t buffer, krb5_data *data)
 611 {
 612     data->data = (char *)buffer->value;
 613     data->length = buffer->length;
 614 }
 615
 616 #ifdef __cplusplus
 617 }
 618 #endif
 619
 620 #include "util_attr.h"
 621 #ifdef GSSEAP_ENABLE_REAUTH
 622 #include "util_reauth.h"
 623 #endif
 624
 625 #endif /* _UTIL_H_ */