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