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