www.project-moonshot.org Git - mech_eap.orig/blob - 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)
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  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     buffer->length = 0;
 311     buffer->value = NULL;
 312 }
 313
 314 bool
 315 gss_eap_saml_assertion_provider::initFromBuffer(const gss_eap_attr_ctx *ctx GSSEAP_UNUSED,
 316                                                 const gss_buffer_t buffer GSSEAP_UNUSED)
 317 {
 318     return false;
 319 }
 320
 321 bool
 322 gss_eap_saml_assertion_provider::init(void)
 323 {
 324     gss_eap_attr_ctx::registerProvider(ATTR_TYPE_SAML_ASSERTION,
 325                                        "urn:ietf:params:gss-eap:saml-aaa-assertion",
 326                                        createAttrContext);
 327     return true;
 328 }
 329
 330 void
 331 gss_eap_saml_assertion_provider::finalize(void)
 332 {
 333     gss_eap_attr_ctx::unregisterProvider(ATTR_TYPE_SAML_ASSERTION);
 334 }
 335
 336 gss_eap_attr_provider *
 337 gss_eap_saml_assertion_provider::createAttrContext(void)
 338 {
 339     return new gss_eap_saml_assertion_provider;
 340 }
 341
 342 saml2::Assertion *
 343 gss_eap_saml_assertion_provider::initAssertion(void)
 344 {
 345     delete m_assertion;
 346     m_assertion = saml2::AssertionBuilder::buildAssertion();
 347     m_authenticated = false;
 348
 349     return m_assertion;
 350 }
 351
 352 /*
 353  * gss_eap_saml_attr_provider is for retrieving the underlying attributes.
 354  */
 355 bool
 356 gss_eap_saml_attr_provider::getAssertion(int *authenticated,
 357                                          saml2::Assertion **pAssertion,
 358                                          bool createIfAbsent) const
 359 {
 360     gss_eap_saml_assertion_provider *saml;
 361
 362     if (authenticated != NULL)
 363         *authenticated = false;
 364     if (pAssertion != NULL)
 365         *pAssertion = NULL;
 366
 367     saml = static_cast<const gss_eap_saml_assertion_provider *>
 368         (m_manager->getProvider(ATTR_TYPE_SAML_ASSERTION));
 369     if (saml == NULL)
 370         return false;
 371
 372     if (authenticated != NULL)
 373         *authenticated = saml->authenticated();
 374     if (pAssertion != NULL)
 375         *pAssertion = saml->getAssertion();
 376
 377     if (saml->getAssertion() == NULL) {
 378         if (createIfAbsent) {
 379             if (authenticated != NULL)
 380                 *authenticated = false;
 381             if (pAssertion != NULL)
 382                 *pAssertion = saml->initAssertion();
 383         } else
 384             return false;
 385     }
 386
 387     return true;
 388 }
 389
 390 bool
 391 gss_eap_saml_attr_provider::getAttributeTypes(gss_eap_attr_enumeration_cb addAttribute,
 392                                               void *data) const
 393 {
 394     saml2::Assertion *assertion;
 395     int authenticated;
 396
 397     if (!getAssertion(&authenticated, &assertion))
 398         return true;
 399
 400     /*
 401      * Note: the first prefix is added by the attribute provider manager
 402      *
 403      * From draft-hartman-gss-eap-naming-00:
 404      *
 405      *   Each attribute carried in the assertion SHOULD also be a GSS name
 406      *   attribute.  The name of this attribute has three parts, all separated
 407      *   by an ASCII space character.  The first part is
 408      *   urn:ietf:params:gss-eap:saml-attr.  The second part is the URI for
 409      *   the SAML attribute name format.  The final part is the name of the
 410      *   SAML attribute.  If the mechanism performs an additional attribute
 411      *   query, the retrieved attributes SHOULD be GSS-API name attributes
 412      *   using the same name syntax.
 413      */
 414     /* For each attribute statement, look for an attribute match */
 415     const vector <saml2::AttributeStatement *> &statements =
 416         const_cast<const saml2::Assertion *>(assertion)->getAttributeStatements();
 417
 418     for (vector<saml2::AttributeStatement *>::const_iterator s = statements.begin();
 419         s != statements.end();
 420         ++s) {
 421         const vector<saml2::Attribute*> &attrs =
 422             const_cast<const saml2::AttributeStatement*>(*s)->getAttributes();
 423
 424         for (vector<saml2::Attribute*>::const_iterator a = attrs.begin(); a != attrs.end(); ++a) {
 425             const XMLCh *attributeName, *attributeNameFormat;
 426             XMLCh *qualifiedName;
 427             XMLCh space[2] = { ' ', 0 };
 428             gss_buffer_desc utf8;
 429             bool ret;
 430
 431             attributeName = (*a)->getName();
 432             attributeNameFormat = (*a)->getNameFormat();
 433             if (attributeNameFormat == NULL || attributeNameFormat[0] == '\0')
 434                 attributeNameFormat = saml2::Attribute::UNSPECIFIED;
 435
 436             qualifiedName = new XMLCh[XMLString::stringLen(attributeNameFormat) + 1 +
 437                                       XMLString::stringLen(attributeName) + 1];
 438             XMLString::copyString(qualifiedName, attributeNameFormat);
 439             XMLString::catString(qualifiedName, space);
 440             XMLString::catString(qualifiedName, attributeName);
 441
 442             utf8.value = (void *)toUTF8(qualifiedName);
 443             utf8.length = strlen((char *)utf8.value);
 444
 445             ret = addAttribute(this, &utf8, data);
 446
 447             delete qualifiedName;
 448
 449             if (!ret)
 450                 return ret;
 451         }
 452     }
 453
 454     return true;
 455 }
 456
 457 static BaseRefVectorOf<XMLCh> *
 458 decomposeAttributeName(const gss_buffer_t attr)
 459 {
 460     XMLCh *qualifiedAttr = new XMLCh[attr->length + 1];
 461     XMLString::transcode((const char *)attr->value, qualifiedAttr, attr->length);
 462
 463     BaseRefVectorOf<XMLCh> *components = XMLString::tokenizeString(qualifiedAttr);
 464
 465     delete qualifiedAttr;
 466
 467     if (components->size() != 2) {
 468         delete components;
 469         components = NULL;
 470     }
 471
 472     return components;
 473 }
 474
 475 bool
 476 gss_eap_saml_attr_provider::setAttribute(int complete GSSEAP_UNUSED,
 477                                          const gss_buffer_t attr,
 478                                          const gss_buffer_t value)
 479 {
 480     saml2::Assertion *assertion;
 481     saml2::Attribute *attribute;
 482     saml2::AttributeValue *attributeValue;
 483     saml2::AttributeStatement *attributeStatement;
 484
 485     if (!getAssertion(NULL, &assertion, true))
 486         return false;
 487
 488     if (assertion->getAttributeStatements().size() != 0) {
 489         attributeStatement = assertion->getAttributeStatements().front();
 490     } else {
 491         attributeStatement = saml2::AttributeStatementBuilder::buildAttributeStatement();
 492         assertion->getAttributeStatements().push_back(attributeStatement);
 493     }
 494
 495     /* Check the attribute name consists of name format | whsp | name */
 496     BaseRefVectorOf<XMLCh> *components = decomposeAttributeName(attr);
 497     if (components == NULL)
 498         return false;
 499
 500     attribute = saml2::AttributeBuilder::buildAttribute();
 501     attribute->setNameFormat(components->elementAt(0));
 502     attribute->setName(components->elementAt(1));
 503
 504     XMLCh *xmlValue = new XMLCh[value->length + 1];
 505     XMLString::transcode((const char *)value->value, xmlValue, attr->length);
 506
 507     attributeValue = saml2::AttributeValueBuilder::buildAttributeValue();
 508     attributeValue->setTextContent(xmlValue);
 509
 510     attribute->getAttributeValues().push_back(attributeValue);
 511
 512     assert(attributeStatement != NULL);
 513     attributeStatement->getAttributes().push_back(attribute);
 514
 515     delete components;
 516     delete xmlValue;
 517
 518     return true;
 519 }
 520
 521 bool
 522 gss_eap_saml_attr_provider::deleteAttribute(const gss_buffer_t attr)
 523 {
 524     saml2::Assertion *assertion;
 525     bool ret = false;
 526
 527     if (!getAssertion(NULL, &assertion) ||
 528         assertion->getAttributeStatements().size() == 0)
 529         return false;
 530
 531     /* Check the attribute name consists of name format | whsp | name */
 532     BaseRefVectorOf<XMLCh> *components = decomposeAttributeName(attr);
 533     if (components == NULL)
 534         return false;
 535
 536     /* For each attribute statement, look for an attribute match */
 537     const vector<saml2::AttributeStatement *> &statements =
 538         const_cast<const saml2::Assertion *>(assertion)->getAttributeStatements();
 539
 540     for (vector<saml2::AttributeStatement *>::const_iterator s = statements.begin();
 541         s != statements.end();
 542         ++s) {
 543         const vector<saml2::Attribute *> &attrs =
 544             const_cast<const saml2::AttributeStatement *>(*s)->getAttributes();
 545         ssize_t index = -1, i = 0;
 546
 547         /* There's got to be an easier way to do this */
 548         for (vector<saml2::Attribute *>::const_iterator a = attrs.begin();
 549              a != attrs.end();
 550              ++a) {
 551             if (XMLString::equals((*a)->getNameFormat(), components->elementAt(0)) &&
 552                 XMLString::equals((*a)->getName(), components->elementAt(1))) {
 553                 index = i;
 554                 break;
 555             }
 556             ++i;
 557         }
 558         if (index != -1) {
 559             (*s)->getAttributes().erase((*s)->getAttributes().begin() + index);
 560             ret = true;
 561         }
 562     }
 563
 564     delete components;
 565
 566     return ret;
 567 }
 568
 569 bool
 570 gss_eap_saml_attr_provider::getAttribute(const gss_buffer_t attr,
 571                                          int *authenticated,
 572                                          int *complete,
 573                                          const saml2::Attribute **pAttribute) const
 574 {
 575     saml2::Assertion *assertion;
 576
 577     if (authenticated != NULL)
 578         *authenticated = false;
 579     if (complete != NULL)
 580         *complete = true;
 581     *pAttribute = NULL;
 582
 583     if (!getAssertion(authenticated, &assertion) ||
 584         assertion->getAttributeStatements().size() == 0)
 585         return false;
 586
 587     /* Check the attribute name consists of name format | whsp | name */
 588     BaseRefVectorOf<XMLCh> *components = decomposeAttributeName(attr);
 589     if (components == NULL)
 590         return false;
 591
 592     /* For each attribute statement, look for an attribute match */
 593     const vector <saml2::AttributeStatement *> &statements =
 594         const_cast<const saml2::Assertion *>(assertion)->getAttributeStatements();
 595     const saml2::Attribute *ret = NULL;
 596
 597     for (vector<saml2::AttributeStatement *>::const_iterator s = statements.begin();
 598         s != statements.end();
 599         ++s) {
 600         const vector<saml2::Attribute *> &attrs =
 601             const_cast<const saml2::AttributeStatement*>(*s)->getAttributes();
 602
 603         for (vector<saml2::Attribute *>::const_iterator a = attrs.begin(); a != attrs.end(); ++a) {
 604             const XMLCh *attributeName, *attributeNameFormat;
 605
 606             attributeName = (*a)->getName();
 607             attributeNameFormat = (*a)->getNameFormat();
 608             if (attributeNameFormat == NULL || attributeNameFormat[0] == '\0')
 609                 attributeNameFormat = saml2::Attribute::UNSPECIFIED;
 610
 611             if (XMLString::equals(attributeNameFormat, components->elementAt(0)) &&
 612                 XMLString::equals(attributeName, components->elementAt(1))) {
 613                 ret = *a;
 614                 break;
 615             }
 616         }
 617
 618         if (ret != NULL)
 619             break;
 620     }
 621
 622     delete components;
 623
 624     *pAttribute = ret;
 625
 626     return (ret != NULL);
 627 }
 628
 629 bool
 630 gss_eap_saml_attr_provider::getAttribute(const gss_buffer_t attr,
 631                                          int *authenticated,
 632                                          int *complete,
 633                                          gss_buffer_t value,
 634                                          gss_buffer_t display_value,
 635                                          int *more) const
 636 {
 637     const saml2::Attribute *a;
 638     const saml2::AttributeValue *av;
 639     int nvalues, i = *more;
 640
 641     *more = 0;
 642
 643     if (!getAttribute(attr, authenticated, complete, &a))
 644         return false;
 645
 646     nvalues = a->getAttributeValues().size();
 647
 648     if (i == -1)
 649         i = 0;
 650     else if (i >= nvalues)
 651         return false;
 652 #ifdef __APPLE__
 653     av = (const saml2::AttributeValue *)((void *)(a->getAttributeValues().at(i)));
 654 #else
 655     av = dynamic_cast<const saml2::AttributeValue *>(a->getAttributeValues().at(i));
 656 #endif
 657     if (av != NULL) {
 658         if (value != NULL) {
 659             value->value = toUTF8(av->getTextContent(), true);
 660             value->length = strlen((char *)value->value);
 661         }
 662         if (display_value != NULL) {
 663             display_value->value = toUTF8(av->getTextContent(), true);
 664             display_value->length = strlen((char *)value->value);
 665         }
 666     }
 667
 668     if (nvalues > ++i)
 669         *more = i;
 670
 671     return true;
 672 }
 673
 674 gss_any_t
 675 gss_eap_saml_attr_provider::mapToAny(int authenticated GSSEAP_UNUSED,
 676                                      gss_buffer_t type_id GSSEAP_UNUSED) const
 677 {
 678     return (gss_any_t)NULL;
 679 }
 680
 681 void
 682 gss_eap_saml_attr_provider::releaseAnyNameMapping(gss_buffer_t type_id GSSEAP_UNUSED,
 683                                                   gss_any_t input GSSEAP_UNUSED) const
 684 {
 685 }
 686
 687 void
 688 gss_eap_saml_attr_provider::exportToBuffer(gss_buffer_t buffer) const
 689 {
 690     buffer->length = 0;
 691     buffer->value = NULL;
 692 }
 693
 694 bool
 695 gss_eap_saml_attr_provider::initFromBuffer(const gss_eap_attr_ctx *ctx GSSEAP_UNUSED,
 696                                            const gss_buffer_t buffer GSSEAP_UNUSED)
 697 {
 698     return false;
 699 }
 700
 701 bool
 702 gss_eap_saml_attr_provider::init(void)
 703 {
 704     gss_eap_attr_ctx::registerProvider(ATTR_TYPE_SAML,
 705                                        "urn:ietf:params:gss-eap:saml-attr",
 706                                        createAttrContext);
 707     return true;
 708 }
 709
 710 void
 711 gss_eap_saml_attr_provider::finalize(void)
 712 {
 713     gss_eap_attr_ctx::unregisterProvider(ATTR_TYPE_SAML);
 714 }
 715
 716 gss_eap_attr_provider *
 717 gss_eap_saml_attr_provider::createAttrContext(void)
 718 {
 719     return new gss_eap_saml_attr_provider;
 720 }
 721
 722 OM_uint32
 723 gssEapSamlAttrProvidersInit(OM_uint32 *minor)
 724 {
 725     if (!gss_eap_saml_assertion_provider::init() ||
 726         !gss_eap_saml_attr_provider::init()) {
 727         *minor = GSSEAP_SAML_INIT_FAILURE;
 728         return GSS_S_FAILURE;
 729     }
 730
 731     return GSS_S_COMPLETE;
 732 }
 733
 734 OM_uint32
 735 gssEapSamlAttrProvidersFinalize(OM_uint32 *minor)
 736 {
 737     gss_eap_saml_attr_provider::finalize();
 738     gss_eap_saml_assertion_provider::finalize();
 739
 740     *minor = 0;
 741     return GSS_S_COMPLETE;
 742 }