util_saml.cpp

   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 /*
  34  * SAML attribute provider implementation.
  35  */
  36
  37 #include "gssapiP_eap.h"
  38
  39 #include <sstream>
  40
  41 #include <xercesc/util/XMLUniDefs.hpp>
  42 #include <xmltooling/unicode.h>
  43 #include <xmltooling/XMLToolingConfig.h>
  44 #include <xmltooling/util/XMLHelper.h>
  45 #include <xmltooling/util/ParserPool.h>
  46 #include <xmltooling/util/DateTime.h>
  47
  48 #include <saml/exceptions.h>
  49 #include <saml/saml1/core/Assertions.h>
  50 #include <saml/saml2/core/Assertions.h>
  51 #include <saml/saml2/metadata/Metadata.h>
  52 #include <saml/saml2/metadata/MetadataProvider.h>
  53
  54 using namespace xmltooling;
  55 using namespace opensaml::saml2md;
  56 using namespace opensaml;
  57 using namespace xercesc;
  58 using namespace std;
  59
  60 /*
  61  * gss_eap_saml_assertion_provider is for retrieving the underlying
  62  * assertion.
  63  */
  64 gss_eap_saml_assertion_provider::gss_eap_saml_assertion_provider(void)
  65 {
  66     m_assertion = NULL;
  67     m_authenticated = false;
  68 }
  69
  70 gss_eap_saml_assertion_provider::~gss_eap_saml_assertion_provider(void)
  71 {
  72     delete m_assertion;
  73 }
  74
  75 bool
  76 gss_eap_saml_assertion_provider::initFromExistingContext(const gss_eap_attr_ctx *manager,
  77                                                          const gss_eap_attr_provider *ctx)
  78 {
  79     /* Then we may be creating from an existing attribute context */
  80     const gss_eap_saml_assertion_provider *saml;
  81
  82     assert(m_assertion == NULL);
  83
  84     if (!gss_eap_attr_provider::initFromExistingContext(manager, ctx))
  85         return false;
  86
  87     saml = static_cast<const gss_eap_saml_assertion_provider *>(ctx);
  88     setAssertion(saml->getAssertion(), saml->authenticated());
  89
  90     return true;
  91 }
  92
  93 bool
  94 gss_eap_saml_assertion_provider::initFromGssContext(const gss_eap_attr_ctx *manager,
  95                                                     const gss_cred_id_t gssCred,
  96                                                     const gss_ctx_id_t gssCtx)
  97 {
  98     const gss_eap_radius_attr_provider *radius;
  99     gss_buffer_desc value = GSS_C_EMPTY_BUFFER;
 100     int authenticated, complete;
 101     OM_uint32 minor;
 102
 103     assert(m_assertion == NULL);
 104
 105     if (!gss_eap_attr_provider::initFromGssContext(manager, gssCred, gssCtx))
 106         return false;
 107
 108     /*
 109      * XXX TODO we need to support draft-howlett-radius-saml-attr-00
 110      */
 111     radius = static_cast<const gss_eap_radius_attr_provider *>
 112         (m_manager->getProvider(ATTR_TYPE_RADIUS));
 113     if (radius != NULL &&
 114         radius->getFragmentedAttribute(PW_SAML_AAA_ASSERTION,
 115                                        VENDORPEC_UKERNA,
 116                                        &authenticated, &complete, &value)) {
 117         setAssertion(&value, authenticated);
 118         gss_release_buffer(&minor, &value);
 119     } else {
 120         m_assertion = NULL;
 121     }
 122
 123     return true;
 124 }
 125
 126 void
 127 gss_eap_saml_assertion_provider::setAssertion(const saml2::Assertion *assertion,
 128                                               bool authenticated)
 129 {
 130
 131     delete m_assertion;
 132
 133     if (assertion != NULL) {
 134 #ifdef __APPLE__
 135         m_assertion = (saml2::Assertion *)((void *)assertion->clone());
 136 #else
 137         m_assertion = dynamic_cast<saml2::Assertion *>(assertion->clone());
 138 #endif
 139         m_authenticated = authenticated;
 140     } else {
 141         m_assertion = NULL;
 142         m_authenticated = false;
 143     }
 144 }
 145
 146 void
 147 gss_eap_saml_assertion_provider::setAssertion(const gss_buffer_t buffer,
 148                                               bool authenticated)
 149 {
 150     delete m_assertion;
 151
 152     m_assertion = parseAssertion(buffer);
 153     m_authenticated = (m_assertion != NULL && authenticated);
 154 }
 155
 156 saml2::Assertion *
 157 gss_eap_saml_assertion_provider::parseAssertion(const gss_buffer_t buffer)
 158 {
 159     string str((char *)buffer->value, buffer->length);
 160     istringstream istream(str);
 161     DOMDocument *doc;
 162     const XMLObjectBuilder *b;
 163
 164     try {
 165         doc = XMLToolingConfig::getConfig().getParser().parse(istream);
 166         if (doc == NULL)
 167             return NULL;
 168
 169         b = XMLObjectBuilder::getBuilder(doc->getDocumentElement());
 170
 171 #ifdef __APPLE__
 172         return (saml2::Assertion *)((void *)b->buildFromDocument(doc));
 173 #else
 174         return dynamic_cast<saml2::Assertion *>(b->buildFromDocument(doc));
 175 #endif
 176     } catch (exception &e) {
 177         return NULL;
 178     }
 179 }
 180
 181 bool
 182 gss_eap_saml_assertion_provider::getAttributeTypes(gss_eap_attr_enumeration_cb addAttribute,
 183                                                    void *data) const
 184 {
 185     bool ret;
 186
 187     /* just add the prefix */
 188     if (m_assertion != NULL)
 189         ret = addAttribute(this, GSS_C_NO_BUFFER, data);
 190     else
 191         ret = true;
 192
 193     return ret;
 194 }
 195
 196 bool
 197 gss_eap_saml_assertion_provider::setAttribute(int complete GSSEAP_UNUSED,
 198                                               const gss_buffer_t attr,
 199                                               const gss_buffer_t value)
 200 {
 201     if (attr == GSS_C_NO_BUFFER || attr->length == 0) {
 202         setAssertion(value);
 203         return true;
 204     }
 205
 206     return false;
 207 }
 208
 209 bool
 210 gss_eap_saml_assertion_provider::deleteAttribute(const gss_buffer_t value GSSEAP_UNUSED)
 211 {
 212     delete m_assertion;
 213     m_assertion = NULL;
 214     m_authenticated = false;
 215
 216     return true;
 217 }
 218
 219 time_t
 220 gss_eap_saml_assertion_provider::getExpiryTime(void) const
 221 {
 222     saml2::Conditions *conditions;
 223     time_t expiryTime = 0;
 224
 225     if (m_assertion == NULL)
 226         return 0;
 227
 228     conditions = m_assertion->getConditions();
 229
 230     if (conditions != NULL && conditions->getNotOnOrAfter() != NULL)
 231         expiryTime = conditions->getNotOnOrAfter()->getEpoch();
 232
 233     return expiryTime;
 234 }
 235
 236 OM_uint32
 237 gss_eap_saml_assertion_provider::mapException(OM_uint32 *minor,
 238                                               std::exception &e) const
 239 {
 240     if (typeid(e) == typeid(SecurityPolicyException))
 241         *minor = GSSEAP_SAML_SEC_POLICY_FAILURE;
 242     else if (typeid(e) == typeid(BindingException))
 243         *minor = GSSEAP_SAML_BINDING_FAILURE;
 244     else if (typeid(e) == typeid(ProfileException))
 245         *minor = GSSEAP_SAML_PROFILE_FAILURE;
 246     else if (typeid(e) == typeid(FatalProfileException))
 247         *minor = GSSEAP_SAML_FATAL_PROFILE_FAILURE;
 248     else if (typeid(e) == typeid(RetryableProfileException))
 249         *minor = GSSEAP_SAML_RETRY_PROFILE_FAILURE;
 250     else if (typeid(e) == typeid(MetadataException))
 251         *minor = GSSEAP_SAML_METADATA_FAILURE;
 252     else
 253         return GSS_S_CONTINUE_NEEDED;
 254
 255     return GSS_S_FAILURE;
 256 }
 257
 258 bool
 259 gss_eap_saml_assertion_provider::getAttribute(const gss_buffer_t attr,
 260                                               int *authenticated,
 261                                               int *complete,
 262                                               gss_buffer_t value,
 263                                               gss_buffer_t display_value GSSEAP_UNUSED,
 264                                               int *more) const
 265 {
 266     string str;
 267
 268     if (attr != GSS_C_NO_BUFFER && attr->length != 0)
 269         return false;
 270
 271     if (m_assertion == NULL)
 272         return false;
 273
 274     if (*more != -1)
 275         return false;
 276
 277     if (authenticated != NULL)
 278         *authenticated = m_authenticated;
 279     if (complete != NULL)
 280         *complete = true;
 281
 282     XMLHelper::serialize(m_assertion->marshall((DOMDocument *)NULL), str);
 283
 284     duplicateBuffer(str, value);
 285     *more = 0;
 286
 287     return true;
 288 }
 289
 290 gss_any_t
 291 gss_eap_saml_assertion_provider::mapToAny(int authenticated,
 292                                           gss_buffer_t type_id GSSEAP_UNUSED) const
 293 {
 294     if (authenticated && !m_authenticated)
 295         return (gss_any_t)NULL;
 296
 297     return (gss_any_t)m_assertion;
 298 }
 299
 300 void
 301 gss_eap_saml_assertion_provider::releaseAnyNameMapping(gss_buffer_t type_id GSSEAP_UNUSED,
 302                                                        gss_any_t input) const
 303 {
 304     delete ((saml2::Assertion *)input);
 305 }
 306
 307 void
 308 gss_eap_saml_assertion_provider::exportToBuffer(gss_buffer_t buffer) const
 309 {
 310     ostringstream sink;
 311     string str;
 312
 313     buffer->length = 0;
 314     buffer->value = NULL;
 315
 316     if (m_assertion == NULL)
 317         return;
 318
 319     sink << *m_assertion;
 320     str = sink.str();
 321
 322     duplicateBuffer(str, buffer);
 323 }
 324
 325 bool
 326 gss_eap_saml_assertion_provider::initFromBuffer(const gss_eap_attr_ctx *ctx,
 327                                                 const gss_buffer_t buffer)
 328 {
 329     if (!gss_eap_attr_provider::initFromBuffer(ctx, buffer))
 330         return false;
 331
 332     if (buffer->length == 0)
 333         return true;
 334
 335     assert(m_assertion == NULL);
 336
 337     setAssertion(buffer);
 338     /* TODO XXX how to propagate authenticated flag? */
 339
 340     return true;
 341 }
 342
 343 bool
 344 gss_eap_saml_assertion_provider::init(void)
 345 {
 346     gss_eap_attr_ctx::registerProvider(ATTR_TYPE_SAML_ASSERTION,
 347                                        "urn:ietf:params:gss-eap:saml-aaa-assertion",
 348                                        createAttrContext);
 349     return true;
 350 }
 351
 352 void
 353 gss_eap_saml_assertion_provider::finalize(void)
 354 {
 355     gss_eap_attr_ctx::unregisterProvider(ATTR_TYPE_SAML_ASSERTION);
 356 }
 357
 358 gss_eap_attr_provider *
 359 gss_eap_saml_assertion_provider::createAttrContext(void)
 360 {
 361     return new gss_eap_saml_assertion_provider;
 362 }
 363
 364 saml2::Assertion *
 365 gss_eap_saml_assertion_provider::initAssertion(void)
 366 {
 367     delete m_assertion;
 368     m_assertion = saml2::AssertionBuilder::buildAssertion();
 369     m_authenticated = false;
 370
 371     return m_assertion;
 372 }
 373
 374 /*
 375  * gss_eap_saml_attr_provider is for retrieving the underlying attributes.
 376  */
 377 bool
 378 gss_eap_saml_attr_provider::getAssertion(int *authenticated,
 379                                          saml2::Assertion **pAssertion,
 380                                          bool createIfAbsent) const
 381 {
 382     gss_eap_saml_assertion_provider *saml;
 383
 384     if (authenticated != NULL)
 385         *authenticated = false;
 386     if (pAssertion != NULL)
 387         *pAssertion = NULL;
 388
 389     saml = static_cast<const gss_eap_saml_assertion_provider *>
 390         (m_manager->getProvider(ATTR_TYPE_SAML_ASSERTION));
 391     if (saml == NULL)
 392         return false;
 393
 394     if (authenticated != NULL)
 395         *authenticated = saml->authenticated();
 396     if (pAssertion != NULL)
 397         *pAssertion = saml->getAssertion();
 398
 399     if (saml->getAssertion() == NULL) {
 400         if (createIfAbsent) {
 401             if (authenticated != NULL)
 402                 *authenticated = false;
 403             if (pAssertion != NULL)
 404                 *pAssertion = saml->initAssertion();
 405         } else
 406             return false;
 407     }
 408
 409     return true;
 410 }
 411
 412 bool
 413 gss_eap_saml_attr_provider::getAttributeTypes(gss_eap_attr_enumeration_cb addAttribute,
 414                                               void *data) const
 415 {
 416     saml2::Assertion *assertion;
 417     int authenticated;
 418
 419     if (!getAssertion(&authenticated, &assertion))
 420         return true;
 421
 422     /*
 423      * Note: the first prefix is added by the attribute provider manager
 424      *
 425      * From draft-hartman-gss-eap-naming-00:
 426      *
 427      *   Each attribute carried in the assertion SHOULD also be a GSS name
 428      *   attribute.  The name of this attribute has three parts, all separated
 429      *   by an ASCII space character.  The first part is
 430      *   urn:ietf:params:gss-eap:saml-attr.  The second part is the URI for
 431      *   the SAML attribute name format.  The final part is the name of the
 432      *   SAML attribute.  If the mechanism performs an additional attribute
 433      *   query, the retrieved attributes SHOULD be GSS-API name attributes
 434      *   using the same name syntax.
 435      */
 436     /* For each attribute statement, look for an attribute match */
 437     const vector <saml2::AttributeStatement *> &statements =
 438         const_cast<const saml2::Assertion *>(assertion)->getAttributeStatements();
 439
 440     for (vector<saml2::AttributeStatement *>::const_iterator s = statements.begin();
 441         s != statements.end();
 442         ++s) {
 443         const vector<saml2::Attribute*> &attrs =
 444             const_cast<const saml2::AttributeStatement*>(*s)->getAttributes();
 445
 446         for (vector<saml2::Attribute*>::const_iterator a = attrs.begin(); a != attrs.end(); ++a) {
 447             const XMLCh *attributeName = (*a)->getName();
 448             const XMLCh *attributeNameFormat = (*a)->getNameFormat();
 449             XMLCh *qualifiedName;
 450             XMLCh space[2] = { ' ', 0 };
 451             gss_buffer_desc utf8;
 452             bool ret;
 453
 454             qualifiedName = new XMLCh[XMLString::stringLen(attributeNameFormat) + 1 +
 455                                       XMLString::stringLen(attributeName) + 1];
 456             XMLString::copyString(qualifiedName, attributeNameFormat);
 457             XMLString::catString(qualifiedName, space);
 458             XMLString::catString(qualifiedName, attributeName);
 459
 460             utf8.value = (void *)toUTF8(qualifiedName);
 461             utf8.length = strlen((char *)utf8.value);
 462
 463             ret = addAttribute(this, &utf8, data);
 464
 465             delete qualifiedName;
 466
 467             if (!ret)
 468                 return ret;
 469         }
 470     }
 471
 472     return true;
 473 }
 474
 475 static BaseRefVectorOf<XMLCh> *
 476 decomposeAttributeName(const gss_buffer_t attr)
 477 {
 478     XMLCh *qualifiedAttr = new XMLCh[attr->length + 1];
 479     XMLString::transcode((const char *)attr->value, qualifiedAttr, attr->length);
 480
 481     BaseRefVectorOf<XMLCh> *components = XMLString::tokenizeString(qualifiedAttr);
 482
 483     delete qualifiedAttr;
 484
 485     if (components->size() != 2) {
 486         delete components;
 487         components = NULL;
 488     }
 489
 490     return components;
 491 }
 492
 493 bool
 494 gss_eap_saml_attr_provider::setAttribute(int complete GSSEAP_UNUSED,
 495                                          const gss_buffer_t attr,
 496                                          const gss_buffer_t value)
 497 {
 498     saml2::Assertion *assertion;
 499     saml2::Attribute *attribute;
 500     saml2::AttributeValue *attributeValue;
 501     saml2::AttributeStatement *attributeStatement;
 502
 503     if (!getAssertion(NULL, &assertion, true))
 504         return false;
 505
 506     if (assertion->getAttributeStatements().size() != 0) {
 507         attributeStatement = assertion->getAttributeStatements().front();
 508     } else {
 509         attributeStatement = saml2::AttributeStatementBuilder::buildAttributeStatement();
 510         assertion->getAttributeStatements().push_back(attributeStatement);
 511     }
 512
 513     /* Check the attribute name consists of name format | whsp | name */
 514     BaseRefVectorOf<XMLCh> *components = decomposeAttributeName(attr);
 515     if (components == NULL)
 516         return false;
 517
 518     attribute = saml2::AttributeBuilder::buildAttribute();
 519     attribute->setNameFormat(components->elementAt(0));
 520     attribute->setName(components->elementAt(1));
 521
 522     XMLCh *xmlValue = new XMLCh[value->length + 1];
 523     XMLString::transcode((const char *)value->value, xmlValue, attr->length);
 524
 525     attributeValue = saml2::AttributeValueBuilder::buildAttributeValue();
 526     attributeValue->setTextContent(xmlValue);
 527
 528     attribute->getAttributeValues().push_back(attributeValue);
 529
 530     assert(attributeStatement != NULL);
 531     attributeStatement->getAttributes().push_back(attribute);
 532
 533     delete components;
 534     delete xmlValue;
 535
 536     return true;
 537 }
 538
 539 bool
 540 gss_eap_saml_attr_provider::deleteAttribute(const gss_buffer_t attr)
 541 {
 542     saml2::Assertion *assertion;
 543     bool ret = false;
 544
 545     if (!getAssertion(NULL, &assertion) ||
 546         assertion->getAttributeStatements().size() == 0)
 547         return false;
 548
 549     /* Check the attribute name consists of name format | whsp | name */
 550     BaseRefVectorOf<XMLCh> *components = decomposeAttributeName(attr);
 551     if (components == NULL)
 552         return false;
 553
 554     /* For each attribute statement, look for an attribute match */
 555     const vector<saml2::AttributeStatement *> &statements =
 556         const_cast<const saml2::Assertion *>(assertion)->getAttributeStatements();
 557
 558     for (vector<saml2::AttributeStatement *>::const_iterator s = statements.begin();
 559         s != statements.end();
 560         ++s) {
 561         const vector<saml2::Attribute *> &attrs =
 562             const_cast<const saml2::AttributeStatement *>(*s)->getAttributes();
 563         ssize_t index = -1, i = 0;
 564
 565         /* There's got to be an easier way to do this */
 566         for (vector<saml2::Attribute *>::const_iterator a = attrs.begin();
 567              a != attrs.end();
 568              ++a) {
 569             if (XMLString::equals((*a)->getNameFormat(), components->elementAt(0)) &&
 570                 XMLString::equals((*a)->getName(), components->elementAt(1))) {
 571                 index = i;
 572                 break;
 573             }
 574             ++i;
 575         }
 576         if (index != -1) {
 577             (*s)->getAttributes().erase((*s)->getAttributes().begin() + index);
 578             ret = true;
 579         }
 580     }
 581
 582     delete components;
 583
 584     return ret;
 585 }
 586
 587 bool
 588 gss_eap_saml_attr_provider::getAttribute(const gss_buffer_t attr,
 589                                          int *authenticated,
 590                                          int *complete,
 591                                          const saml2::Attribute **pAttribute) const
 592 {
 593     saml2::Assertion *assertion;
 594
 595     if (authenticated != NULL)
 596         *authenticated = false;
 597     if (complete != NULL)
 598         *complete = true;
 599     *pAttribute = NULL;
 600
 601     if (!getAssertion(authenticated, &assertion) ||
 602         assertion->getAttributeStatements().size() == 0)
 603         return false;
 604
 605     /* Check the attribute name consists of name format | whsp | name */
 606     BaseRefVectorOf<XMLCh> *components = decomposeAttributeName(attr);
 607     if (components == NULL)
 608         return false;
 609
 610     /* For each attribute statement, look for an attribute match */
 611     const vector <saml2::AttributeStatement *> &statements =
 612         const_cast<const saml2::Assertion *>(assertion)->getAttributeStatements();
 613     const saml2::Attribute *ret = NULL;
 614
 615     for (vector<saml2::AttributeStatement *>::const_iterator s = statements.begin();
 616         s != statements.end();
 617         ++s) {
 618         const vector<saml2::Attribute *> &attrs =
 619             const_cast<const saml2::AttributeStatement*>(*s)->getAttributes();
 620
 621         for (vector<saml2::Attribute *>::const_iterator a = attrs.begin(); a != attrs.end(); ++a) {
 622             if (XMLString::equals((*a)->getNameFormat(), components->elementAt(0)) &&
 623                 XMLString::equals((*a)->getName(), components->elementAt(1))) {
 624                 ret = *a;
 625                 break;
 626             }
 627         }
 628
 629         if (ret != NULL)
 630             break;
 631     }
 632
 633     delete components;
 634
 635     *pAttribute = ret;
 636
 637     return (ret != NULL);
 638 }
 639
 640 bool
 641 gss_eap_saml_attr_provider::getAttribute(const gss_buffer_t attr,
 642                                          int *authenticated,
 643                                          int *complete,
 644                                          gss_buffer_t value,
 645                                          gss_buffer_t display_value,
 646                                          int *more) const
 647 {
 648     const saml2::Attribute *a;
 649     const saml2::AttributeValue *av;
 650     int nvalues, i = *more;
 651
 652     *more = 0;
 653
 654     if (!getAttribute(attr, authenticated, complete, &a))
 655         return false;
 656
 657     nvalues = a->getAttributeValues().size();
 658
 659     if (i == -1)
 660         i = 0;
 661     else if (i >= nvalues)
 662         return false;
 663 #ifdef __APPLE__
 664     av = (const saml2::AttributeValue *)((void *)(a->getAttributeValues().at(i)));
 665 #else
 666     av = dynamic_cast<const saml2::AttributeValue *>(a->getAttributeValues().at(i));
 667 #endif
 668     if (av != NULL) {
 669         if (value != NULL) {
 670             value->value = toUTF8(av->getTextContent(), true);
 671             value->length = strlen((char *)value->value);
 672         }
 673         if (display_value != NULL) {
 674             display_value->value = toUTF8(av->getTextContent(), true);
 675             display_value->length = strlen((char *)value->value);
 676         }
 677     }
 678
 679     if (nvalues > ++i)
 680         *more = i;
 681
 682     return true;
 683 }
 684
 685 gss_any_t
 686 gss_eap_saml_attr_provider::mapToAny(int authenticated GSSEAP_UNUSED,
 687                                      gss_buffer_t type_id GSSEAP_UNUSED) const
 688 {
 689     return (gss_any_t)NULL;
 690 }
 691
 692 void
 693 gss_eap_saml_attr_provider::releaseAnyNameMapping(gss_buffer_t type_id GSSEAP_UNUSED,
 694                                                   gss_any_t input GSSEAP_UNUSED) const
 695 {
 696 }
 697
 698 void
 699 gss_eap_saml_attr_provider::exportToBuffer(gss_buffer_t buffer) const
 700 {
 701     buffer->length = 0;
 702     buffer->value = NULL;
 703 }
 704
 705 bool
 706 gss_eap_saml_attr_provider::initFromBuffer(const gss_eap_attr_ctx *ctx,
 707                                            const gss_buffer_t buffer)
 708 {
 709     return gss_eap_attr_provider::initFromBuffer(ctx, buffer);
 710 }
 711
 712 bool
 713 gss_eap_saml_attr_provider::init(void)
 714 {
 715     gss_eap_attr_ctx::registerProvider(ATTR_TYPE_SAML,
 716                                        "urn:ietf:params:gss-eap:saml-attr",
 717                                        createAttrContext);
 718     return true;
 719 }
 720
 721 void
 722 gss_eap_saml_attr_provider::finalize(void)
 723 {
 724     gss_eap_attr_ctx::unregisterProvider(ATTR_TYPE_SAML);
 725 }
 726
 727 gss_eap_attr_provider *
 728 gss_eap_saml_attr_provider::createAttrContext(void)
 729 {
 730     return new gss_eap_saml_attr_provider;
 731 }
 732
 733 OM_uint32
 734 gssEapSamlAttrProvidersInit(OM_uint32 *minor)
 735 {
 736     if (!gss_eap_saml_assertion_provider::init() ||
 737         !gss_eap_saml_attr_provider::init()) {
 738         *minor = GSSEAP_SAML_INIT_FAILURE;
 739         return GSS_S_FAILURE;
 740     }
 741
 742     return GSS_S_COMPLETE;
 743 }
 744
 745 OM_uint32
 746 gssEapSamlAttrProvidersFinalize(OM_uint32 *minor)
 747 {
 748     gss_eap_saml_attr_provider::finalize();
 749     gss_eap_saml_assertion_provider::finalize();
 750
 751     *minor = 0;
 752     return GSS_S_COMPLETE;
 753 }