mech_eap/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 DDF
 308 gss_eap_saml_assertion_provider::marshall(void) const
 309 {
 310     return DDF(NULL);
 311 }
 312
 313 bool
 314 gss_eap_saml_assertion_provider::unmarshallAndInit(const gss_eap_attr_ctx *ctx GSSEAP_UNUSED,
 315                                                    DDF &object GSSEAP_UNUSED)
 316 {
 317     return false;
 318 }
 319
 320 bool
 321 gss_eap_saml_assertion_provider::init(void)
 322 {
 323     gss_eap_attr_ctx::registerProvider(ATTR_TYPE_SAML_ASSERTION,
 324                                        "urn:ietf:params:gss-eap:saml-aaa-assertion",
 325                                        createAttrContext);
 326     return true;
 327 }
 328
 329 void
 330 gss_eap_saml_assertion_provider::finalize(void)
 331 {
 332     gss_eap_attr_ctx::unregisterProvider(ATTR_TYPE_SAML_ASSERTION);
 333 }
 334
 335 gss_eap_attr_provider *
 336 gss_eap_saml_assertion_provider::createAttrContext(void)
 337 {
 338     return new gss_eap_saml_assertion_provider;
 339 }
 340
 341 saml2::Assertion *
 342 gss_eap_saml_assertion_provider::initAssertion(void)
 343 {
 344     delete m_assertion;
 345     m_assertion = saml2::AssertionBuilder::buildAssertion();
 346     m_authenticated = false;
 347
 348     return m_assertion;
 349 }
 350
 351 /*
 352  * gss_eap_saml_attr_provider is for retrieving the underlying attributes.
 353  */
 354 bool
 355 gss_eap_saml_attr_provider::getAssertion(int *authenticated,
 356                                          saml2::Assertion **pAssertion,
 357                                          bool createIfAbsent) const
 358 {
 359     gss_eap_saml_assertion_provider *saml;
 360
 361     if (authenticated != NULL)
 362         *authenticated = false;
 363     if (pAssertion != NULL)
 364         *pAssertion = NULL;
 365
 366     saml = static_cast<const gss_eap_saml_assertion_provider *>
 367         (m_manager->getProvider(ATTR_TYPE_SAML_ASSERTION));
 368     if (saml == NULL)
 369         return false;
 370
 371     if (authenticated != NULL)
 372         *authenticated = saml->authenticated();
 373     if (pAssertion != NULL)
 374         *pAssertion = saml->getAssertion();
 375
 376     if (saml->getAssertion() == NULL) {
 377         if (createIfAbsent) {
 378             if (authenticated != NULL)
 379                 *authenticated = false;
 380             if (pAssertion != NULL)
 381                 *pAssertion = saml->initAssertion();
 382         } else
 383             return false;
 384     }
 385
 386     return true;
 387 }
 388
 389 bool
 390 gss_eap_saml_attr_provider::getAttributeTypes(gss_eap_attr_enumeration_cb addAttribute,
 391                                               void *data) const
 392 {
 393     saml2::Assertion *assertion;
 394     int authenticated;
 395
 396     if (!getAssertion(&authenticated, &assertion))
 397         return true;
 398
 399     /*
 400      * Note: the first prefix is added by the attribute provider manager
 401      *
 402      * From draft-hartman-gss-eap-naming-00:
 403      *
 404      *   Each attribute carried in the assertion SHOULD also be a GSS name
 405      *   attribute.  The name of this attribute has three parts, all separated
 406      *   by an ASCII space character.  The first part is
 407      *   urn:ietf:params:gss-eap:saml-attr.  The second part is the URI for
 408      *   the SAML attribute name format.  The final part is the name of the
 409      *   SAML attribute.  If the mechanism performs an additional attribute
 410      *   query, the retrieved attributes SHOULD be GSS-API name attributes
 411      *   using the same name syntax.
 412      */
 413     /* For each attribute statement, look for an attribute match */
 414     const vector <saml2::AttributeStatement *> &statements =
 415         const_cast<const saml2::Assertion *>(assertion)->getAttributeStatements();
 416
 417     for (vector<saml2::AttributeStatement *>::const_iterator s = statements.begin();
 418         s != statements.end();
 419         ++s) {
 420         const vector<saml2::Attribute*> &attrs =
 421             const_cast<const saml2::AttributeStatement*>(*s)->getAttributes();
 422
 423         for (vector<saml2::Attribute*>::const_iterator a = attrs.begin(); a != attrs.end(); ++a) {
 424             const XMLCh *attributeName, *attributeNameFormat;
 425             XMLCh *qualifiedName;
 426             XMLCh space[2] = { ' ', 0 };
 427             gss_buffer_desc utf8;
 428             bool ret;
 429
 430             attributeName = (*a)->getName();
 431             attributeNameFormat = (*a)->getNameFormat();
 432             if (attributeNameFormat == NULL || attributeNameFormat[0] == '\0')
 433                 attributeNameFormat = saml2::Attribute::UNSPECIFIED;
 434
 435             qualifiedName = new XMLCh[XMLString::stringLen(attributeNameFormat) + 1 +
 436                                       XMLString::stringLen(attributeName) + 1];
 437             XMLString::copyString(qualifiedName, attributeNameFormat);
 438             XMLString::catString(qualifiedName, space);
 439             XMLString::catString(qualifiedName, attributeName);
 440
 441             utf8.value = (void *)toUTF8(qualifiedName);
 442             utf8.length = strlen((char *)utf8.value);
 443
 444             ret = addAttribute(this, &utf8, data);
 445
 446             delete qualifiedName;
 447
 448             if (!ret)
 449                 return ret;
 450         }
 451     }
 452
 453     return true;
 454 }
 455
 456 static BaseRefVectorOf<XMLCh> *
 457 decomposeAttributeName(const gss_buffer_t attr)
 458 {
 459     XMLCh *qualifiedAttr = new XMLCh[attr->length + 1];
 460     XMLString::transcode((const char *)attr->value, qualifiedAttr, attr->length);
 461
 462     BaseRefVectorOf<XMLCh> *components = XMLString::tokenizeString(qualifiedAttr);
 463
 464     delete qualifiedAttr;
 465
 466     if (components->size() != 2) {
 467         delete components;
 468         components = NULL;
 469     }
 470
 471     return components;
 472 }
 473
 474 bool
 475 gss_eap_saml_attr_provider::setAttribute(int complete GSSEAP_UNUSED,
 476                                          const gss_buffer_t attr,
 477                                          const gss_buffer_t value)
 478 {
 479     saml2::Assertion *assertion;
 480     saml2::Attribute *attribute;
 481     saml2::AttributeValue *attributeValue;
 482     saml2::AttributeStatement *attributeStatement;
 483
 484     if (!getAssertion(NULL, &assertion, true))
 485         return false;
 486
 487     if (assertion->getAttributeStatements().size() != 0) {
 488         attributeStatement = assertion->getAttributeStatements().front();
 489     } else {
 490         attributeStatement = saml2::AttributeStatementBuilder::buildAttributeStatement();
 491         assertion->getAttributeStatements().push_back(attributeStatement);
 492     }
 493
 494     /* Check the attribute name consists of name format | whsp | name */
 495     BaseRefVectorOf<XMLCh> *components = decomposeAttributeName(attr);
 496     if (components == NULL)
 497         return false;
 498
 499     attribute = saml2::AttributeBuilder::buildAttribute();
 500     attribute->setNameFormat(components->elementAt(0));
 501     attribute->setName(components->elementAt(1));
 502
 503     XMLCh *xmlValue = new XMLCh[value->length + 1];
 504     XMLString::transcode((const char *)value->value, xmlValue, attr->length);
 505
 506     attributeValue = saml2::AttributeValueBuilder::buildAttributeValue();
 507     attributeValue->setTextContent(xmlValue);
 508
 509     attribute->getAttributeValues().push_back(attributeValue);
 510
 511     assert(attributeStatement != NULL);
 512     attributeStatement->getAttributes().push_back(attribute);
 513
 514     delete components;
 515     delete xmlValue;
 516
 517     return true;
 518 }
 519
 520 bool
 521 gss_eap_saml_attr_provider::deleteAttribute(const gss_buffer_t attr)
 522 {
 523     saml2::Assertion *assertion;
 524     bool ret = false;
 525
 526     if (!getAssertion(NULL, &assertion) ||
 527         assertion->getAttributeStatements().size() == 0)
 528         return false;
 529
 530     /* Check the attribute name consists of name format | whsp | name */
 531     BaseRefVectorOf<XMLCh> *components = decomposeAttributeName(attr);
 532     if (components == NULL)
 533         return false;
 534
 535     /* For each attribute statement, look for an attribute match */
 536     const vector<saml2::AttributeStatement *> &statements =
 537         const_cast<const saml2::Assertion *>(assertion)->getAttributeStatements();
 538
 539     for (vector<saml2::AttributeStatement *>::const_iterator s = statements.begin();
 540         s != statements.end();
 541         ++s) {
 542         const vector<saml2::Attribute *> &attrs =
 543             const_cast<const saml2::AttributeStatement *>(*s)->getAttributes();
 544         ssize_t index = -1, i = 0;
 545
 546         /* There's got to be an easier way to do this */
 547         for (vector<saml2::Attribute *>::const_iterator a = attrs.begin();
 548              a != attrs.end();
 549              ++a) {
 550             if (XMLString::equals((*a)->getNameFormat(), components->elementAt(0)) &&
 551                 XMLString::equals((*a)->getName(), components->elementAt(1))) {
 552                 index = i;
 553                 break;
 554             }
 555             ++i;
 556         }
 557         if (index != -1) {
 558             (*s)->getAttributes().erase((*s)->getAttributes().begin() + index);
 559             ret = true;
 560         }
 561     }
 562
 563     delete components;
 564
 565     return ret;
 566 }
 567
 568 bool
 569 gss_eap_saml_attr_provider::getAttribute(const gss_buffer_t attr,
 570                                          int *authenticated,
 571                                          int *complete,
 572                                          const saml2::Attribute **pAttribute) const
 573 {
 574     saml2::Assertion *assertion;
 575
 576     if (authenticated != NULL)
 577         *authenticated = false;
 578     if (complete != NULL)
 579         *complete = true;
 580     *pAttribute = NULL;
 581
 582     if (!getAssertion(authenticated, &assertion) ||
 583         assertion->getAttributeStatements().size() == 0)
 584         return false;
 585
 586     /* Check the attribute name consists of name format | whsp | name */
 587     BaseRefVectorOf<XMLCh> *components = decomposeAttributeName(attr);
 588     if (components == NULL)
 589         return false;
 590
 591     /* For each attribute statement, look for an attribute match */
 592     const vector <saml2::AttributeStatement *> &statements =
 593         const_cast<const saml2::Assertion *>(assertion)->getAttributeStatements();
 594     const saml2::Attribute *ret = NULL;
 595
 596     for (vector<saml2::AttributeStatement *>::const_iterator s = statements.begin();
 597         s != statements.end();
 598         ++s) {
 599         const vector<saml2::Attribute *> &attrs =
 600             const_cast<const saml2::AttributeStatement*>(*s)->getAttributes();
 601
 602         for (vector<saml2::Attribute *>::const_iterator a = attrs.begin(); a != attrs.end(); ++a) {
 603             const XMLCh *attributeName, *attributeNameFormat;
 604
 605             attributeName = (*a)->getName();
 606             attributeNameFormat = (*a)->getNameFormat();
 607             if (attributeNameFormat == NULL || attributeNameFormat[0] == '\0')
 608                 attributeNameFormat = saml2::Attribute::UNSPECIFIED;
 609
 610             if (XMLString::equals(attributeNameFormat, components->elementAt(0)) &&
 611                 XMLString::equals(attributeName, components->elementAt(1))) {
 612                 ret = *a;
 613                 break;
 614             }
 615         }
 616
 617         if (ret != NULL)
 618             break;
 619     }
 620
 621     delete components;
 622
 623     *pAttribute = ret;
 624
 625     return (ret != NULL);
 626 }
 627
 628 bool
 629 gss_eap_saml_attr_provider::getAttribute(const gss_buffer_t attr,
 630                                          int *authenticated,
 631                                          int *complete,
 632                                          gss_buffer_t value,
 633                                          gss_buffer_t display_value,
 634                                          int *more) const
 635 {
 636     const saml2::Attribute *a;
 637     const saml2::AttributeValue *av;
 638     int nvalues, i = *more;
 639
 640     *more = 0;
 641
 642     if (!getAttribute(attr, authenticated, complete, &a))
 643         return false;
 644
 645     nvalues = a->getAttributeValues().size();
 646
 647     if (i == -1)
 648         i = 0;
 649     else if (i >= nvalues)
 650         return false;
 651 #ifdef __APPLE__
 652     av = (const saml2::AttributeValue *)((void *)(a->getAttributeValues().at(i)));
 653 #else
 654     av = dynamic_cast<const saml2::AttributeValue *>(a->getAttributeValues().at(i));
 655 #endif
 656     if (av != NULL) {
 657         if (value != NULL) {
 658             value->value = toUTF8(av->getTextContent(), true);
 659             value->length = strlen((char *)value->value);
 660         }
 661         if (display_value != NULL) {
 662             display_value->value = toUTF8(av->getTextContent(), true);
 663             display_value->length = strlen((char *)value->value);
 664         }
 665     }
 666
 667     if (nvalues > ++i)
 668         *more = i;
 669
 670     return true;
 671 }
 672
 673 gss_any_t
 674 gss_eap_saml_attr_provider::mapToAny(int authenticated GSSEAP_UNUSED,
 675                                      gss_buffer_t type_id GSSEAP_UNUSED) const
 676 {
 677     return (gss_any_t)NULL;
 678 }
 679
 680 void
 681 gss_eap_saml_attr_provider::releaseAnyNameMapping(gss_buffer_t type_id GSSEAP_UNUSED,
 682                                                   gss_any_t input GSSEAP_UNUSED) const
 683 {
 684 }
 685
 686 DDF
 687 gss_eap_saml_attr_provider::marshall(void) const
 688 {
 689     return DDF(NULL);
 690 }
 691
 692 bool
 693 gss_eap_saml_attr_provider::unmarshallAndInit(const gss_eap_attr_ctx *ctx GSSEAP_UNUSED,
 694                                               DDF &object GSSEAP_UNUSED)
 695 {
 696     return false;
 697 }
 698
 699 bool
 700 gss_eap_saml_attr_provider::init(void)
 701 {
 702     gss_eap_attr_ctx::registerProvider(ATTR_TYPE_SAML,
 703                                        "urn:ietf:params:gss-eap:saml-attr",
 704                                        createAttrContext);
 705     return true;
 706 }
 707
 708 void
 709 gss_eap_saml_attr_provider::finalize(void)
 710 {
 711     gss_eap_attr_ctx::unregisterProvider(ATTR_TYPE_SAML);
 712 }
 713
 714 gss_eap_attr_provider *
 715 gss_eap_saml_attr_provider::createAttrContext(void)
 716 {
 717     return new gss_eap_saml_attr_provider;
 718 }
 719
 720 OM_uint32
 721 gssEapSamlAttrProvidersInit(OM_uint32 *minor)
 722 {
 723     if (!gss_eap_saml_assertion_provider::init() ||
 724         !gss_eap_saml_attr_provider::init()) {
 725         *minor = GSSEAP_SAML_INIT_FAILURE;
 726         return GSS_S_FAILURE;
 727     }
 728
 729     return GSS_S_COMPLETE;
 730 }
 731
 732 OM_uint32
 733 gssEapSamlAttrProvidersFinalize(OM_uint32 *minor)
 734 {
 735     gss_eap_saml_attr_provider::finalize();
 736     gss_eap_saml_assertion_provider::finalize();
 737
 738     *minor = 0;
 739     return GSS_S_COMPLETE;
 740 }