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| 1 | +/* | |
| 2 | + * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.security.provider.certpath; | |
| 27 | + | |
| 28 | +import java.util.*; | |
| 29 | +import java.io.IOException; | |
| 30 | + | |
| 31 | +import java.security.cert.Certificate; | |
| 32 | +import java.security.cert.CertificateException; | |
| 33 | +import java.security.cert.CertPathValidatorException; | |
| 34 | +import java.security.cert.PKIXCertPathChecker; | |
| 35 | +import java.security.cert.PKIXReason; | |
| 36 | +import java.security.cert.PolicyNode; | |
| 37 | +import java.security.cert.PolicyQualifierInfo; | |
| 38 | +import java.security.cert.X509Certificate; | |
| 39 | + | |
| 40 | +import sun.security.util.Debug; | |
| 41 | +import sun.security.x509.CertificatePoliciesExtension; | |
| 42 | +import sun.security.x509.PolicyConstraintsExtension; | |
| 43 | +import sun.security.x509.PolicyMappingsExtension; | |
| 44 | +import sun.security.x509.CertificatePolicyMap; | |
| 45 | +import sun.security.x509.PKIXExtensions; | |
| 46 | +import sun.security.x509.PolicyInformation; | |
| 47 | +import sun.security.x509.X509CertImpl; | |
| 48 | +import sun.security.x509.InhibitAnyPolicyExtension; | |
| 49 | + | |
| 50 | +/** | |
| 51 | + * PolicyChecker is a <code>PKIXCertPathChecker</code> that checks policy | |
| 52 | + * information on a PKIX certificate, namely certificate policies, policy | |
| 53 | + * mappings, policy constraints and policy qualifiers. | |
| 54 | + * | |
| 55 | + * @since 1.4 | |
| 56 | + * @author Yassir Elley | |
| 57 | + */ | |
| 58 | +class PolicyChecker extends PKIXCertPathChecker { | |
| 59 | + | |
| 60 | + private final Set<String> initPolicies; | |
| 61 | + private final int certPathLen; | |
| 62 | + private final boolean expPolicyRequired; | |
| 63 | + private final boolean polMappingInhibited; | |
| 64 | + private final boolean anyPolicyInhibited; | |
| 65 | + private final boolean rejectPolicyQualifiers; | |
| 66 | + private PolicyNodeImpl rootNode; | |
| 67 | + private int explicitPolicy; | |
| 68 | + private int policyMapping; | |
| 69 | + private int inhibitAnyPolicy; | |
| 70 | + private int certIndex; | |
| 71 | + | |
| 72 | + private Set<String> supportedExts; | |
| 73 | + | |
| 74 | + private static final Debug debug = Debug.getInstance("certpath"); | |
| 75 | + static final String ANY_POLICY = "2.5.29.32.0"; | |
| 76 | + | |
| 77 | + /** | |
| 78 | + * Constructs a Policy Checker. | |
| 79 | + * | |
| 80 | + * @param initialPolicies Set of initial policies | |
| 81 | + * @param certPathLen length of the certification path to be checked | |
| 82 | + * @param expPolicyRequired true if explicit policy is required | |
| 83 | + * @param polMappingInhibited true if policy mapping is inhibited | |
| 84 | + * @param anyPolicyInhibited true if the ANY_POLICY OID should be inhibited | |
| 85 | + * @param rejectPolicyQualifiers true if pol qualifiers are to be rejected | |
| 86 | + * @param rootNode the initial root node of the valid policy tree | |
| 87 | + */ | |
| 88 | + PolicyChecker(Set<String> initialPolicies, int certPathLen, | |
| 89 | + boolean expPolicyRequired, boolean polMappingInhibited, | |
| 90 | + boolean anyPolicyInhibited, boolean rejectPolicyQualifiers, | |
| 91 | + PolicyNodeImpl rootNode) throws CertPathValidatorException | |
| 92 | + { | |
| 93 | + if (initialPolicies.isEmpty()) { | |
| 94 | + // if no initialPolicies are specified by user, set | |
| 95 | + // initPolicies to be anyPolicy by default | |
| 96 | + this.initPolicies = new HashSet<String>(1); | |
| 97 | + this.initPolicies.add(ANY_POLICY); | |
| 98 | + } else { | |
| 99 | + this.initPolicies = new HashSet<String>(initialPolicies); | |
| 100 | + } | |
| 101 | + this.certPathLen = certPathLen; | |
| 102 | + this.expPolicyRequired = expPolicyRequired; | |
| 103 | + this.polMappingInhibited = polMappingInhibited; | |
| 104 | + this.anyPolicyInhibited = anyPolicyInhibited; | |
| 105 | + this.rejectPolicyQualifiers = rejectPolicyQualifiers; | |
| 106 | + this.rootNode = rootNode; | |
| 107 | + init(false); | |
| 108 | + } | |
| 109 | + | |
| 110 | + /** | |
| 111 | + * Initializes the internal state of the checker from parameters | |
| 112 | + * specified in the constructor | |
| 113 | + * | |
| 114 | + * @param forward a boolean indicating whether this checker should | |
| 115 | + * be initialized capable of building in the forward direction | |
| 116 | + * @exception CertPathValidatorException Exception thrown if user | |
| 117 | + * wants to enable forward checking and forward checking is not supported. | |
| 118 | + */ | |
| 119 | + public void init(boolean forward) throws CertPathValidatorException { | |
| 120 | + if (forward) { | |
| 121 | + throw new CertPathValidatorException | |
| 122 | + ("forward checking not supported"); | |
| 123 | + } | |
| 124 | + | |
| 125 | + certIndex = 1; | |
| 126 | + explicitPolicy = (expPolicyRequired ? 0 : certPathLen + 1); | |
| 127 | + policyMapping = (polMappingInhibited ? 0 : certPathLen + 1); | |
| 128 | + inhibitAnyPolicy = (anyPolicyInhibited ? 0 : certPathLen + 1); | |
| 129 | + } | |
| 130 | + | |
| 131 | + /** | |
| 132 | + * Checks if forward checking is supported. Forward checking refers | |
| 133 | + * to the ability of the PKIXCertPathChecker to perform its checks | |
| 134 | + * when presented with certificates in the forward direction (from | |
| 135 | + * target to anchor). | |
| 136 | + * | |
| 137 | + * @return true if forward checking is supported, false otherwise | |
| 138 | + */ | |
| 139 | + public boolean isForwardCheckingSupported() { | |
| 140 | + return false; | |
| 141 | + } | |
| 142 | + | |
| 143 | + /** | |
| 144 | + * Gets an immutable Set of the OID strings for the extensions that | |
| 145 | + * the PKIXCertPathChecker supports (i.e. recognizes, is able to | |
| 146 | + * process), or null if no extensions are | |
| 147 | + * supported. All OID strings that a PKIXCertPathChecker might | |
| 148 | + * possibly be able to process should be included. | |
| 149 | + * | |
| 150 | + * @return the Set of extensions supported by this PKIXCertPathChecker, | |
| 151 | + * or null if no extensions are supported | |
| 152 | + */ | |
| 153 | + public Set<String> getSupportedExtensions() { | |
| 154 | + if (supportedExts == null) { | |
| 155 | + supportedExts = new HashSet<String>(); | |
| 156 | + supportedExts.add(PKIXExtensions.CertificatePolicies_Id.toString()); | |
| 157 | + supportedExts.add(PKIXExtensions.PolicyMappings_Id.toString()); | |
| 158 | + supportedExts.add(PKIXExtensions.PolicyConstraints_Id.toString()); | |
| 159 | + supportedExts.add(PKIXExtensions.InhibitAnyPolicy_Id.toString()); | |
| 160 | + supportedExts = Collections.unmodifiableSet(supportedExts); | |
| 161 | + } | |
| 162 | + return supportedExts; | |
| 163 | + } | |
| 164 | + | |
| 165 | + /** | |
| 166 | + * Performs the policy processing checks on the certificate using its | |
| 167 | + * internal state. | |
| 168 | + * | |
| 169 | + * @param cert the Certificate to be processed | |
| 170 | + * @param unresCritExts the unresolved critical extensions | |
| 171 | + * @exception CertPathValidatorException Exception thrown if | |
| 172 | + * the certificate does not verify. | |
| 173 | + */ | |
| 174 | + public void check(Certificate cert, Collection<String> unresCritExts) | |
| 175 | + throws CertPathValidatorException | |
| 176 | + { | |
| 177 | + // now do the policy checks | |
| 178 | + checkPolicy((X509Certificate) cert); | |
| 179 | + | |
| 180 | + if (unresCritExts != null && !unresCritExts.isEmpty()) { | |
| 181 | + unresCritExts.remove(PKIXExtensions.CertificatePolicies_Id.toString()); | |
| 182 | + unresCritExts.remove(PKIXExtensions.PolicyMappings_Id.toString()); | |
| 183 | + unresCritExts.remove(PKIXExtensions.PolicyConstraints_Id.toString()); | |
| 184 | + unresCritExts.remove(PKIXExtensions.InhibitAnyPolicy_Id.toString()); | |
| 185 | + } | |
| 186 | + } | |
| 187 | + | |
| 188 | + /** | |
| 189 | + * Internal method to run through all the checks. | |
| 190 | + * | |
| 191 | + * @param currCert the certificate to be processed | |
| 192 | + * @exception CertPathValidatorException Exception thrown if | |
| 193 | + * the certificate does not verify | |
| 194 | + */ | |
| 195 | + private void checkPolicy(X509Certificate currCert) | |
| 196 | + throws CertPathValidatorException | |
| 197 | + { | |
| 198 | + String msg = "certificate policies"; | |
| 199 | + if (debug != null) { | |
| 200 | + debug.println("PolicyChecker.checkPolicy() ---checking " + msg | |
| 201 | + + "..."); | |
| 202 | + debug.println("PolicyChecker.checkPolicy() certIndex = " | |
| 203 | + + certIndex); | |
| 204 | + debug.println("PolicyChecker.checkPolicy() BEFORE PROCESSING: " | |
| 205 | + + "explicitPolicy = " + explicitPolicy); | |
| 206 | + debug.println("PolicyChecker.checkPolicy() BEFORE PROCESSING: " | |
| 207 | + + "policyMapping = " + policyMapping); | |
| 208 | + debug.println("PolicyChecker.checkPolicy() BEFORE PROCESSING: " | |
| 209 | + + "inhibitAnyPolicy = " + inhibitAnyPolicy); | |
| 210 | + debug.println("PolicyChecker.checkPolicy() BEFORE PROCESSING: " | |
| 211 | + + "policyTree = " + rootNode); | |
| 212 | + } | |
| 213 | + | |
| 214 | + X509CertImpl currCertImpl = null; | |
| 215 | + try { | |
| 216 | + currCertImpl = X509CertImpl.toImpl(currCert); | |
| 217 | + } catch (CertificateException ce) { | |
| 218 | + throw new CertPathValidatorException(ce); | |
| 219 | + } | |
| 220 | + | |
| 221 | + boolean finalCert = (certIndex == certPathLen); | |
| 222 | + | |
| 223 | + rootNode = processPolicies(certIndex, initPolicies, explicitPolicy, | |
| 224 | + policyMapping, inhibitAnyPolicy, rejectPolicyQualifiers, rootNode, | |
| 225 | + currCertImpl, finalCert); | |
| 226 | + | |
| 227 | + if (!finalCert) { | |
| 228 | + explicitPolicy = mergeExplicitPolicy(explicitPolicy, currCertImpl, | |
| 229 | + finalCert); | |
| 230 | + policyMapping = mergePolicyMapping(policyMapping, currCertImpl); | |
| 231 | + inhibitAnyPolicy = mergeInhibitAnyPolicy(inhibitAnyPolicy, | |
| 232 | + currCertImpl); | |
| 233 | + } | |
| 234 | + | |
| 235 | + certIndex++; | |
| 236 | + | |
| 237 | + if (debug != null) { | |
| 238 | + debug.println("PolicyChecker.checkPolicy() AFTER PROCESSING: " | |
| 239 | + + "explicitPolicy = " + explicitPolicy); | |
| 240 | + debug.println("PolicyChecker.checkPolicy() AFTER PROCESSING: " | |
| 241 | + + "policyMapping = " + policyMapping); | |
| 242 | + debug.println("PolicyChecker.checkPolicy() AFTER PROCESSING: " | |
| 243 | + + "inhibitAnyPolicy = " + inhibitAnyPolicy); | |
| 244 | + debug.println("PolicyChecker.checkPolicy() AFTER PROCESSING: " | |
| 245 | + + "policyTree = " + rootNode); | |
| 246 | + debug.println("PolicyChecker.checkPolicy() " + msg + " verified"); | |
| 247 | + } | |
| 248 | + } | |
| 249 | + | |
| 250 | + /** | |
| 251 | + * Merges the specified explicitPolicy value with the | |
| 252 | + * requireExplicitPolicy field of the <code>PolicyConstraints</code> | |
| 253 | + * extension obtained from the certificate. An explicitPolicy | |
| 254 | + * value of -1 implies no constraint. | |
| 255 | + * | |
| 256 | + * @param explicitPolicy an integer which indicates if a non-null | |
| 257 | + * valid policy tree is required | |
| 258 | + * @param currCert the Certificate to be processed | |
| 259 | + * @param finalCert a boolean indicating whether currCert is | |
| 260 | + * the final cert in the cert path | |
| 261 | + * @return returns the new explicitPolicy value | |
| 262 | + * @exception CertPathValidatorException Exception thrown if an error | |
| 263 | + * occurs | |
| 264 | + */ | |
| 265 | + static int mergeExplicitPolicy(int explicitPolicy, X509CertImpl currCert, | |
| 266 | + boolean finalCert) throws CertPathValidatorException | |
| 267 | + { | |
| 268 | + if ((explicitPolicy > 0) && !X509CertImpl.isSelfIssued(currCert)) { | |
| 269 | + explicitPolicy--; | |
| 270 | + } | |
| 271 | + | |
| 272 | + try { | |
| 273 | + PolicyConstraintsExtension polConstExt | |
| 274 | + = currCert.getPolicyConstraintsExtension(); | |
| 275 | + if (polConstExt == null) | |
| 276 | + return explicitPolicy; | |
| 277 | + int require = ((Integer) | |
| 278 | + polConstExt.get(PolicyConstraintsExtension.REQUIRE)).intValue(); | |
| 279 | + if (debug != null) { | |
| 280 | + debug.println("PolicyChecker.mergeExplicitPolicy() " | |
| 281 | + + "require Index from cert = " + require); | |
| 282 | + } | |
| 283 | + if (!finalCert) { | |
| 284 | + if (require != -1) { | |
| 285 | + if ((explicitPolicy == -1) || (require < explicitPolicy)) { | |
| 286 | + explicitPolicy = require; | |
| 287 | + } | |
| 288 | + } | |
| 289 | + } else { | |
| 290 | + if (require == 0) | |
| 291 | + explicitPolicy = require; | |
| 292 | + } | |
| 293 | + } catch (Exception e) { | |
| 294 | + if (debug != null) { | |
| 295 | + debug.println("PolicyChecker.mergeExplicitPolicy " | |
| 296 | + + "unexpected exception"); | |
| 297 | + e.printStackTrace(); | |
| 298 | + } | |
| 299 | + throw new CertPathValidatorException(e); | |
| 300 | + } | |
| 301 | + | |
| 302 | + return explicitPolicy; | |
| 303 | + } | |
| 304 | + | |
| 305 | + /** | |
| 306 | + * Merges the specified policyMapping value with the | |
| 307 | + * inhibitPolicyMapping field of the <code>PolicyConstraints</code> | |
| 308 | + * extension obtained from the certificate. A policyMapping | |
| 309 | + * value of -1 implies no constraint. | |
| 310 | + * | |
| 311 | + * @param policyMapping an integer which indicates if policy mapping | |
| 312 | + * is inhibited | |
| 313 | + * @param currCert the Certificate to be processed | |
| 314 | + * @return returns the new policyMapping value | |
| 315 | + * @exception CertPathValidatorException Exception thrown if an error | |
| 316 | + * occurs | |
| 317 | + */ | |
| 318 | + static int mergePolicyMapping(int policyMapping, X509CertImpl currCert) | |
| 319 | + throws CertPathValidatorException | |
| 320 | + { | |
| 321 | + if ((policyMapping > 0) && !X509CertImpl.isSelfIssued(currCert)) { | |
| 322 | + policyMapping--; | |
| 323 | + } | |
| 324 | + | |
| 325 | + try { | |
| 326 | + PolicyConstraintsExtension polConstExt | |
| 327 | + = currCert.getPolicyConstraintsExtension(); | |
| 328 | + if (polConstExt == null) | |
| 329 | + return policyMapping; | |
| 330 | + | |
| 331 | + int inhibit = ((Integer) | |
| 332 | + polConstExt.get(PolicyConstraintsExtension.INHIBIT)).intValue(); | |
| 333 | + if (debug != null) | |
| 334 | + debug.println("PolicyChecker.mergePolicyMapping() " | |
| 335 | + + "inhibit Index from cert = " + inhibit); | |
| 336 | + | |
| 337 | + if (inhibit != -1) { | |
| 338 | + if ((policyMapping == -1) || (inhibit < policyMapping)) { | |
| 339 | + policyMapping = inhibit; | |
| 340 | + } | |
| 341 | + } | |
| 342 | + } catch (Exception e) { | |
| 343 | + if (debug != null) { | |
| 344 | + debug.println("PolicyChecker.mergePolicyMapping " | |
| 345 | + + "unexpected exception"); | |
| 346 | + e.printStackTrace(); | |
| 347 | + } | |
| 348 | + throw new CertPathValidatorException(e); | |
| 349 | + } | |
| 350 | + | |
| 351 | + return policyMapping; | |
| 352 | + } | |
| 353 | + | |
| 354 | + /** | |
| 355 | + * Merges the specified inhibitAnyPolicy value with the | |
| 356 | + * SkipCerts value of the InhibitAnyPolicy | |
| 357 | + * extension obtained from the certificate. | |
| 358 | + * | |
| 359 | + * @param inhibitAnyPolicy an integer which indicates whether | |
| 360 | + * "any-policy" is considered a match | |
| 361 | + * @param currCert the Certificate to be processed | |
| 362 | + * @return returns the new inhibitAnyPolicy value | |
| 363 | + * @exception CertPathValidatorException Exception thrown if an error | |
| 364 | + * occurs | |
| 365 | + */ | |
| 366 | + static int mergeInhibitAnyPolicy(int inhibitAnyPolicy, | |
| 367 | + X509CertImpl currCert) throws CertPathValidatorException | |
| 368 | + { | |
| 369 | + if ((inhibitAnyPolicy > 0) && !X509CertImpl.isSelfIssued(currCert)) { | |
| 370 | + inhibitAnyPolicy--; | |
| 371 | + } | |
| 372 | + | |
| 373 | + try { | |
| 374 | + InhibitAnyPolicyExtension inhAnyPolExt = (InhibitAnyPolicyExtension) | |
| 375 | + currCert.getExtension(PKIXExtensions.InhibitAnyPolicy_Id); | |
| 376 | + if (inhAnyPolExt == null) | |
| 377 | + return inhibitAnyPolicy; | |
| 378 | + | |
| 379 | + int skipCerts = ((Integer) | |
| 380 | + inhAnyPolExt.get(InhibitAnyPolicyExtension.SKIP_CERTS)).intValue(); | |
| 381 | + if (debug != null) | |
| 382 | + debug.println("PolicyChecker.mergeInhibitAnyPolicy() " | |
| 383 | + + "skipCerts Index from cert = " + skipCerts); | |
| 384 | + | |
| 385 | + if (skipCerts != -1) { | |
| 386 | + if (skipCerts < inhibitAnyPolicy) { | |
| 387 | + inhibitAnyPolicy = skipCerts; | |
| 388 | + } | |
| 389 | + } | |
| 390 | + } catch (Exception e) { | |
| 391 | + if (debug != null) { | |
| 392 | + debug.println("PolicyChecker.mergeInhibitAnyPolicy " | |
| 393 | + + "unexpected exception"); | |
| 394 | + e.printStackTrace(); | |
| 395 | + } | |
| 396 | + throw new CertPathValidatorException(e); | |
| 397 | + } | |
| 398 | + | |
| 399 | + return inhibitAnyPolicy; | |
| 400 | + } | |
| 401 | + | |
| 402 | + /** | |
| 403 | + * Processes certificate policies in the certificate. | |
| 404 | + * | |
| 405 | + * @param certIndex the index of the certificate | |
| 406 | + * @param initPolicies the initial policies required by the user | |
| 407 | + * @param explicitPolicy an integer which indicates if a non-null | |
| 408 | + * valid policy tree is required | |
| 409 | + * @param policyMapping an integer which indicates if policy | |
| 410 | + * mapping is inhibited | |
| 411 | + * @param inhibitAnyPolicy an integer which indicates whether | |
| 412 | + * "any-policy" is considered a match | |
| 413 | + * @param rejectPolicyQualifiers a boolean indicating whether the | |
| 414 | + * user wants to reject policies that have qualifiers | |
| 415 | + * @param origRootNode the root node of the valid policy tree | |
| 416 | + * @param currCert the Certificate to be processed | |
| 417 | + * @param finalCert a boolean indicating whether currCert is the final | |
| 418 | + * cert in the cert path | |
| 419 | + * @return the root node of the valid policy tree after modification | |
| 420 | + * @exception CertPathValidatorException Exception thrown if an | |
| 421 | + * error occurs while processing policies. | |
| 422 | + */ | |
| 423 | + static PolicyNodeImpl processPolicies(int certIndex, Set<String> initPolicies, | |
| 424 | + int explicitPolicy, int policyMapping, int inhibitAnyPolicy, | |
| 425 | + boolean rejectPolicyQualifiers, PolicyNodeImpl origRootNode, | |
| 426 | + X509CertImpl currCert, boolean finalCert) | |
| 427 | + throws CertPathValidatorException | |
| 428 | + { | |
| 429 | + boolean policiesCritical = false; | |
| 430 | + List<PolicyInformation> policyInfo; | |
| 431 | + PolicyNodeImpl rootNode = null; | |
| 432 | + Set<PolicyQualifierInfo> anyQuals = new HashSet<PolicyQualifierInfo>(); | |
| 433 | + | |
| 434 | + if (origRootNode == null) | |
| 435 | + rootNode = null; | |
| 436 | + else | |
| 437 | + rootNode = origRootNode.copyTree(); | |
| 438 | + | |
| 439 | + // retrieve policyOIDs from currCert | |
| 440 | + CertificatePoliciesExtension currCertPolicies | |
| 441 | + = currCert.getCertificatePoliciesExtension(); | |
| 442 | + | |
| 443 | + // PKIX: Section 6.1.3: Step (d) | |
| 444 | + if ((currCertPolicies != null) && (rootNode != null)) { | |
| 445 | + policiesCritical = currCertPolicies.isCritical(); | |
| 446 | + if (debug != null) | |
| 447 | + debug.println("PolicyChecker.processPolicies() " | |
| 448 | + + "policiesCritical = " + policiesCritical); | |
| 449 | + | |
| 450 | + try { | |
| 451 | + policyInfo = (List<PolicyInformation>) | |
| 452 | + currCertPolicies.get(CertificatePoliciesExtension.POLICIES); | |
| 453 | + } catch (IOException ioe) { | |
| 454 | + throw new CertPathValidatorException("Exception while " | |
| 455 | + + "retrieving policyOIDs", ioe); | |
| 456 | + } | |
| 457 | + | |
| 458 | + if (debug != null) | |
| 459 | + debug.println("PolicyChecker.processPolicies() " | |
| 460 | + + "rejectPolicyQualifiers = " + rejectPolicyQualifiers); | |
| 461 | + | |
| 462 | + boolean foundAnyPolicy = false; | |
| 463 | + | |
| 464 | + // process each policy in cert | |
| 465 | + for (PolicyInformation curPolInfo : policyInfo) { | |
| 466 | + String curPolicy = | |
| 467 | + curPolInfo.getPolicyIdentifier().getIdentifier().toString(); | |
| 468 | + | |
| 469 | + if (curPolicy.equals(ANY_POLICY)) { | |
| 470 | + foundAnyPolicy = true; | |
| 471 | + anyQuals = curPolInfo.getPolicyQualifiers(); | |
| 472 | + } else { | |
| 473 | + // PKIX: Section 6.1.3: Step (d)(1) | |
| 474 | + if (debug != null) | |
| 475 | + debug.println("PolicyChecker.processPolicies() " | |
| 476 | + + "processing policy: " + curPolicy); | |
| 477 | + | |
| 478 | + // retrieve policy qualifiers from cert | |
| 479 | + Set<PolicyQualifierInfo> pQuals = | |
| 480 | + curPolInfo.getPolicyQualifiers(); | |
| 481 | + | |
| 482 | + // reject cert if we find critical policy qualifiers and | |
| 483 | + // the policyQualifiersRejected flag is set in the params | |
| 484 | + if (!pQuals.isEmpty() && rejectPolicyQualifiers && | |
| 485 | + policiesCritical) { | |
| 486 | + throw new CertPathValidatorException( | |
| 487 | + "critical policy qualifiers present in certificate", | |
| 488 | + null, null, -1, PKIXReason.INVALID_POLICY); | |
| 489 | + } | |
| 490 | + | |
| 491 | + // PKIX: Section 6.1.3: Step (d)(1)(i) | |
| 492 | + boolean foundMatch = processParents(certIndex, | |
| 493 | + policiesCritical, rejectPolicyQualifiers, rootNode, | |
| 494 | + curPolicy, pQuals, false); | |
| 495 | + | |
| 496 | + if (!foundMatch) { | |
| 497 | + // PKIX: Section 6.1.3: Step (d)(1)(ii) | |
| 498 | + processParents(certIndex, policiesCritical, | |
| 499 | + rejectPolicyQualifiers, rootNode, curPolicy, | |
| 500 | + pQuals, true); | |
| 501 | + } | |
| 502 | + } | |
| 503 | + } | |
| 504 | + | |
| 505 | + // PKIX: Section 6.1.3: Step (d)(2) | |
| 506 | + if (foundAnyPolicy) { | |
| 507 | + if ((inhibitAnyPolicy > 0) || | |
| 508 | + (!finalCert && X509CertImpl.isSelfIssued(currCert))) { | |
| 509 | + if (debug != null) { | |
| 510 | + debug.println("PolicyChecker.processPolicies() " | |
| 511 | + + "processing policy: " + ANY_POLICY); | |
| 512 | + } | |
| 513 | + processParents(certIndex, policiesCritical, | |
| 514 | + rejectPolicyQualifiers, rootNode, ANY_POLICY, anyQuals, | |
| 515 | + true); | |
| 516 | + } | |
| 517 | + } | |
| 518 | + | |
| 519 | + // PKIX: Section 6.1.3: Step (d)(3) | |
| 520 | + rootNode.prune(certIndex); | |
| 521 | + if (!rootNode.getChildren().hasNext()) { | |
| 522 | + rootNode = null; | |
| 523 | + } | |
| 524 | + } else if (currCertPolicies == null) { | |
| 525 | + if (debug != null) | |
| 526 | + debug.println("PolicyChecker.processPolicies() " | |
| 527 | + + "no policies present in cert"); | |
| 528 | + // PKIX: Section 6.1.3: Step (e) | |
| 529 | + rootNode = null; | |
| 530 | + } | |
| 531 | + | |
| 532 | + // We delay PKIX: Section 6.1.3: Step (f) to the end | |
| 533 | + // because the code that follows may delete some nodes | |
| 534 | + // resulting in a null tree | |
| 535 | + if (rootNode != null) { | |
| 536 | + if (!finalCert) { | |
| 537 | + // PKIX: Section 6.1.4: Steps (a)-(b) | |
| 538 | + rootNode = processPolicyMappings(currCert, certIndex, | |
| 539 | + policyMapping, rootNode, policiesCritical, anyQuals); | |
| 540 | + } | |
| 541 | + } | |
| 542 | + | |
| 543 | + // At this point, we optimize the PKIX algorithm by | |
| 544 | + // removing those nodes which would later have | |
| 545 | + // been removed by PKIX: Section 6.1.5: Step (g)(iii) | |
| 546 | + | |
| 547 | + if ((rootNode != null) && (!initPolicies.contains(ANY_POLICY)) | |
| 548 | + && (currCertPolicies != null)) { | |
| 549 | + rootNode = removeInvalidNodes(rootNode, certIndex, | |
| 550 | + initPolicies, currCertPolicies); | |
| 551 | + | |
| 552 | + // PKIX: Section 6.1.5: Step (g)(iii) | |
| 553 | + if ((rootNode != null) && finalCert) { | |
| 554 | + // rewrite anyPolicy leaf nodes (see method comments) | |
| 555 | + rootNode = rewriteLeafNodes(certIndex, initPolicies, rootNode); | |
| 556 | + } | |
| 557 | + } | |
| 558 | + | |
| 559 | + | |
| 560 | + if (finalCert) { | |
| 561 | + // PKIX: Section 6.1.5: Steps (a) and (b) | |
| 562 | + explicitPolicy = mergeExplicitPolicy(explicitPolicy, currCert, | |
| 563 | + finalCert); | |
| 564 | + } | |
| 565 | + | |
| 566 | + // PKIX: Section 6.1.3: Step (f) | |
| 567 | + // verify that either explicit policy is greater than 0 or | |
| 568 | + // the valid_policy_tree is not equal to NULL | |
| 569 | + | |
| 570 | + if ((explicitPolicy == 0) && (rootNode == null)) { | |
| 571 | + throw new CertPathValidatorException | |
| 572 | + ("non-null policy tree required and policy tree is null", | |
| 573 | + null, null, -1, PKIXReason.INVALID_POLICY); | |
| 574 | + } | |
| 575 | + | |
| 576 | + return rootNode; | |
| 577 | + } | |
| 578 | + | |
| 579 | + /** | |
| 580 | + * Rewrite leaf nodes at the end of validation as described in RFC 3280 | |
| 581 | + * section 6.1.5: Step (g)(iii). Leaf nodes with anyPolicy are replaced | |
| 582 | + * by nodes explicitly representing initial policies not already | |
| 583 | + * represented by leaf nodes. | |
| 584 | + * | |
| 585 | + * This method should only be called when processing the final cert | |
| 586 | + * and if the policy tree is not null and initial policies is not | |
| 587 | + * anyPolicy. | |
| 588 | + * | |
| 589 | + * @param certIndex the depth of the tree | |
| 590 | + * @param initPolicies Set of user specified initial policies | |
| 591 | + * @param rootNode the root of the policy tree | |
| 592 | + */ | |
| 593 | + private static PolicyNodeImpl rewriteLeafNodes(int certIndex, | |
| 594 | + Set<String> initPolicies, PolicyNodeImpl rootNode) { | |
| 595 | + Set<PolicyNodeImpl> anyNodes = | |
| 596 | + rootNode.getPolicyNodesValid(certIndex, ANY_POLICY); | |
| 597 | + if (anyNodes.isEmpty()) { | |
| 598 | + return rootNode; | |
| 599 | + } | |
| 600 | + PolicyNodeImpl anyNode = anyNodes.iterator().next(); | |
| 601 | + PolicyNodeImpl parentNode = (PolicyNodeImpl)anyNode.getParent(); | |
| 602 | + parentNode.deleteChild(anyNode); | |
| 603 | + // see if there are any initialPolicies not represented by leaf nodes | |
| 604 | + Set<String> initial = new HashSet<String>(initPolicies); | |
| 605 | + for (PolicyNodeImpl node : rootNode.getPolicyNodes(certIndex)) { | |
| 606 | + initial.remove(node.getValidPolicy()); | |
| 607 | + } | |
| 608 | + if (initial.isEmpty()) { | |
| 609 | + // we deleted the anyPolicy node and have nothing to re-add, | |
| 610 | + // so we need to prune the tree | |
| 611 | + rootNode.prune(certIndex); | |
| 612 | + if (rootNode.getChildren().hasNext() == false) { | |
| 613 | + rootNode = null; | |
| 614 | + } | |
| 615 | + } else { | |
| 616 | + boolean anyCritical = anyNode.isCritical(); | |
| 617 | + Set<PolicyQualifierInfo> anyQualifiers = | |
| 618 | + anyNode.getPolicyQualifiers(); | |
| 619 | + for (String policy : initial) { | |
| 620 | + Set<String> expectedPolicies = Collections.singleton(policy); | |
| 621 | + PolicyNodeImpl node = new PolicyNodeImpl(parentNode, policy, | |
| 622 | + anyQualifiers, anyCritical, expectedPolicies, false); | |
| 623 | + } | |
| 624 | + } | |
| 625 | + return rootNode; | |
| 626 | + } | |
| 627 | + | |
| 628 | + /** | |
| 629 | + * Finds the policy nodes of depth (certIndex-1) where curPolicy | |
| 630 | + * is in the expected policy set and creates a new child node | |
| 631 | + * appropriately. If matchAny is true, then a value of ANY_POLICY | |
| 632 | + * in the expected policy set will match any curPolicy. If matchAny | |
| 633 | + * is false, then the expected policy set must exactly contain the | |
| 634 | + * curPolicy to be considered a match. This method returns a boolean | |
| 635 | + * value indicating whether a match was found. | |
| 636 | + * | |
| 637 | + * @param certIndex the index of the certificate whose policy is | |
| 638 | + * being processed | |
| 639 | + * @param policiesCritical a boolean indicating whether the certificate | |
| 640 | + * policies extension is critical | |
| 641 | + * @param rejectPolicyQualifiers a boolean indicating whether the | |
| 642 | + * user wants to reject policies that have qualifiers | |
| 643 | + * @param rootNode the root node of the valid policy tree | |
| 644 | + * @param curPolicy a String representing the policy being processed | |
| 645 | + * @param pQuals the policy qualifiers of the policy being processed or an | |
| 646 | + * empty Set if there are no qualifiers | |
| 647 | + * @param matchAny a boolean indicating whether a value of ANY_POLICY | |
| 648 | + * in the expected policy set will be considered a match | |
| 649 | + * @return a boolean indicating whether a match was found | |
| 650 | + * @exception CertPathValidatorException Exception thrown if error occurs. | |
| 651 | + */ | |
| 652 | + private static boolean processParents(int certIndex, | |
| 653 | + boolean policiesCritical, boolean rejectPolicyQualifiers, | |
| 654 | + PolicyNodeImpl rootNode, String curPolicy, | |
| 655 | + Set<PolicyQualifierInfo> pQuals, | |
| 656 | + boolean matchAny) throws CertPathValidatorException | |
| 657 | + { | |
| 658 | + boolean foundMatch = false; | |
| 659 | + | |
| 660 | + if (debug != null) | |
| 661 | + debug.println("PolicyChecker.processParents(): matchAny = " | |
| 662 | + + matchAny); | |
| 663 | + | |
| 664 | + // find matching parents | |
| 665 | + Set<PolicyNodeImpl> parentNodes = | |
| 666 | + rootNode.getPolicyNodesExpected(certIndex - 1, | |
| 667 | + curPolicy, matchAny); | |
| 668 | + | |
| 669 | + // for each matching parent, extend policy tree | |
| 670 | + for (PolicyNodeImpl curParent : parentNodes) { | |
| 671 | + if (debug != null) | |
| 672 | + debug.println("PolicyChecker.processParents() " | |
| 673 | + + "found parent:\n" + curParent.asString()); | |
| 674 | + | |
| 675 | + foundMatch = true; | |
| 676 | + String curParPolicy = curParent.getValidPolicy(); | |
| 677 | + | |
| 678 | + PolicyNodeImpl curNode = null; | |
| 679 | + Set<String> curExpPols = null; | |
| 680 | + | |
| 681 | + if (curPolicy.equals(ANY_POLICY)) { | |
| 682 | + // do step 2 | |
| 683 | + Set<String> parExpPols = curParent.getExpectedPolicies(); | |
| 684 | + parentExplicitPolicies: | |
| 685 | + for (String curParExpPol : parExpPols) { | |
| 686 | + | |
| 687 | + Iterator<PolicyNodeImpl> childIter = | |
| 688 | + curParent.getChildren(); | |
| 689 | + while (childIter.hasNext()) { | |
| 690 | + PolicyNodeImpl childNode = childIter.next(); | |
| 691 | + String childPolicy = childNode.getValidPolicy(); | |
| 692 | + if (curParExpPol.equals(childPolicy)) { | |
| 693 | + if (debug != null) | |
| 694 | + debug.println(childPolicy + " in parent's " | |
| 695 | + + "expected policy set already appears in " | |
| 696 | + + "child node"); | |
| 697 | + continue parentExplicitPolicies; | |
| 698 | + } | |
| 699 | + } | |
| 700 | + | |
| 701 | + Set<String> expPols = new HashSet<String>(); | |
| 702 | + expPols.add(curParExpPol); | |
| 703 | + | |
| 704 | + curNode = new PolicyNodeImpl | |
| 705 | + (curParent, curParExpPol, pQuals, | |
| 706 | + policiesCritical, expPols, false); | |
| 707 | + } | |
| 708 | + } else { | |
| 709 | + curExpPols = new HashSet<String>(); | |
| 710 | + curExpPols.add(curPolicy); | |
| 711 | + | |
| 712 | + curNode = new PolicyNodeImpl | |
| 713 | + (curParent, curPolicy, pQuals, | |
| 714 | + policiesCritical, curExpPols, false); | |
| 715 | + } | |
| 716 | + } | |
| 717 | + | |
| 718 | + return foundMatch; | |
| 719 | + } | |
| 720 | + | |
| 721 | + /** | |
| 722 | + * Processes policy mappings in the certificate. | |
| 723 | + * | |
| 724 | + * @param currCert the Certificate to be processed | |
| 725 | + * @param certIndex the index of the current certificate | |
| 726 | + * @param policyMapping an integer which indicates if policy | |
| 727 | + * mapping is inhibited | |
| 728 | + * @param rootNode the root node of the valid policy tree | |
| 729 | + * @param policiesCritical a boolean indicating if the certificate policies | |
| 730 | + * extension is critical | |
| 731 | + * @param anyQuals the qualifiers associated with ANY-POLICY, or an empty | |
| 732 | + * Set if there are no qualifiers associated with ANY-POLICY | |
| 733 | + * @return the root node of the valid policy tree after modification | |
| 734 | + * @exception CertPathValidatorException exception thrown if an error | |
| 735 | + * occurs while processing policy mappings | |
| 736 | + */ | |
| 737 | + private static PolicyNodeImpl processPolicyMappings(X509CertImpl currCert, | |
| 738 | + int certIndex, int policyMapping, PolicyNodeImpl rootNode, | |
| 739 | + boolean policiesCritical, Set<PolicyQualifierInfo> anyQuals) | |
| 740 | + throws CertPathValidatorException | |
| 741 | + { | |
| 742 | + PolicyMappingsExtension polMappingsExt | |
| 743 | + = currCert.getPolicyMappingsExtension(); | |
| 744 | + | |
| 745 | + if (polMappingsExt == null) | |
| 746 | + return rootNode; | |
| 747 | + | |
| 748 | + if (debug != null) | |
| 749 | + debug.println("PolicyChecker.processPolicyMappings() " | |
| 750 | + + "inside policyMapping check"); | |
| 751 | + | |
| 752 | + List<CertificatePolicyMap> maps = null; | |
| 753 | + try { | |
| 754 | + maps = (List<CertificatePolicyMap>)polMappingsExt.get | |
| 755 | + (PolicyMappingsExtension.MAP); | |
| 756 | + } catch (IOException e) { | |
| 757 | + if (debug != null) { | |
| 758 | + debug.println("PolicyChecker.processPolicyMappings() " | |
| 759 | + + "mapping exception"); | |
| 760 | + e.printStackTrace(); | |
| 761 | + } | |
| 762 | + throw new CertPathValidatorException("Exception while checking " | |
| 763 | + + "mapping", e); | |
| 764 | + } | |
| 765 | + | |
| 766 | + boolean childDeleted = false; | |
| 767 | + for (int j = 0; j < maps.size(); j++) { | |
| 768 | + CertificatePolicyMap polMap = maps.get(j); | |
| 769 | + String issuerDomain | |
| 770 | + = polMap.getIssuerIdentifier().getIdentifier().toString(); | |
| 771 | + String subjectDomain | |
| 772 | + = polMap.getSubjectIdentifier().getIdentifier().toString(); | |
| 773 | + if (debug != null) { | |
| 774 | + debug.println("PolicyChecker.processPolicyMappings() " | |
| 775 | + + "issuerDomain = " + issuerDomain); | |
| 776 | + debug.println("PolicyChecker.processPolicyMappings() " | |
| 777 | + + "subjectDomain = " + subjectDomain); | |
| 778 | + } | |
| 779 | + | |
| 780 | + if (issuerDomain.equals(ANY_POLICY)) { | |
| 781 | + throw new CertPathValidatorException | |
| 782 | + ("encountered an issuerDomainPolicy of ANY_POLICY", | |
| 783 | + null, null, -1, PKIXReason.INVALID_POLICY); | |
| 784 | + } | |
| 785 | + | |
| 786 | + if (subjectDomain.equals(ANY_POLICY)) { | |
| 787 | + throw new CertPathValidatorException | |
| 788 | + ("encountered a subjectDomainPolicy of ANY_POLICY", | |
| 789 | + null, null, -1, PKIXReason.INVALID_POLICY); | |
| 790 | + } | |
| 791 | + | |
| 792 | + Set<PolicyNodeImpl> validNodes = | |
| 793 | + rootNode.getPolicyNodesValid(certIndex, issuerDomain); | |
| 794 | + if (!validNodes.isEmpty()) { | |
| 795 | + for (PolicyNodeImpl curNode : validNodes) { | |
| 796 | + if ((policyMapping > 0) || (policyMapping == -1)) { | |
| 797 | + curNode.addExpectedPolicy(subjectDomain); | |
| 798 | + } else if (policyMapping == 0) { | |
| 799 | + PolicyNodeImpl parentNode = | |
| 800 | + (PolicyNodeImpl) curNode.getParent(); | |
| 801 | + if (debug != null) | |
| 802 | + debug.println("PolicyChecker.processPolicyMappings" | |
| 803 | + + "() before deleting: policy tree = " | |
| 804 | + + rootNode); | |
| 805 | + parentNode.deleteChild(curNode); | |
| 806 | + childDeleted = true; | |
| 807 | + if (debug != null) | |
| 808 | + debug.println("PolicyChecker.processPolicyMappings" | |
| 809 | + + "() after deleting: policy tree = " | |
| 810 | + + rootNode); | |
| 811 | + } | |
| 812 | + } | |
| 813 | + } else { // no node of depth i has a valid policy | |
| 814 | + if ((policyMapping > 0) || (policyMapping == -1)) { | |
| 815 | + Set<PolicyNodeImpl> validAnyNodes = | |
| 816 | + rootNode.getPolicyNodesValid(certIndex, ANY_POLICY); | |
| 817 | + for (PolicyNodeImpl curAnyNode : validAnyNodes) { | |
| 818 | + PolicyNodeImpl curAnyNodeParent = | |
| 819 | + (PolicyNodeImpl) curAnyNode.getParent(); | |
| 820 | + | |
| 821 | + Set<String> expPols = new HashSet<String>(); | |
| 822 | + expPols.add(subjectDomain); | |
| 823 | + | |
| 824 | + PolicyNodeImpl curNode = new PolicyNodeImpl | |
| 825 | + (curAnyNodeParent, issuerDomain, anyQuals, | |
| 826 | + policiesCritical, expPols, true); | |
| 827 | + } | |
| 828 | + } | |
| 829 | + } | |
| 830 | + } | |
| 831 | + | |
| 832 | + if (childDeleted) { | |
| 833 | + rootNode.prune(certIndex); | |
| 834 | + if (!rootNode.getChildren().hasNext()) { | |
| 835 | + if (debug != null) | |
| 836 | + debug.println("setting rootNode to null"); | |
| 837 | + rootNode = null; | |
| 838 | + } | |
| 839 | + } | |
| 840 | + | |
| 841 | + return rootNode; | |
| 842 | + } | |
| 843 | + | |
| 844 | + /** | |
| 845 | + * Removes those nodes which do not intersect with the initial policies | |
| 846 | + * specified by the user. | |
| 847 | + * | |
| 848 | + * @param rootNode the root node of the valid policy tree | |
| 849 | + * @param certIndex the index of the certificate being processed | |
| 850 | + * @param initPolicies the Set of policies required by the user | |
| 851 | + * @param currCertPolicies the CertificatePoliciesExtension of the | |
| 852 | + * certificate being processed | |
| 853 | + * @returns the root node of the valid policy tree after modification | |
| 854 | + * @exception CertPathValidatorException Exception thrown if error occurs. | |
| 855 | + */ | |
| 856 | + private static PolicyNodeImpl removeInvalidNodes(PolicyNodeImpl rootNode, | |
| 857 | + int certIndex, Set<String> initPolicies, | |
| 858 | + CertificatePoliciesExtension currCertPolicies) | |
| 859 | + throws CertPathValidatorException | |
| 860 | + { | |
| 861 | + List<PolicyInformation> policyInfo = null; | |
| 862 | + try { | |
| 863 | + policyInfo = (List<PolicyInformation>) | |
| 864 | + currCertPolicies.get(CertificatePoliciesExtension.POLICIES); | |
| 865 | + } catch (IOException ioe) { | |
| 866 | + throw new CertPathValidatorException("Exception while " | |
| 867 | + + "retrieving policyOIDs", ioe); | |
| 868 | + } | |
| 869 | + | |
| 870 | + boolean childDeleted = false; | |
| 871 | + for (PolicyInformation curPolInfo : policyInfo) { | |
| 872 | + String curPolicy = | |
| 873 | + curPolInfo.getPolicyIdentifier().getIdentifier().toString(); | |
| 874 | + | |
| 875 | + if (debug != null) | |
| 876 | + debug.println("PolicyChecker.processPolicies() " | |
| 877 | + + "processing policy second time: " + curPolicy); | |
| 878 | + | |
| 879 | + Set<PolicyNodeImpl> validNodes = | |
| 880 | + rootNode.getPolicyNodesValid(certIndex, curPolicy); | |
| 881 | + for (PolicyNodeImpl curNode : validNodes) { | |
| 882 | + PolicyNodeImpl parentNode = (PolicyNodeImpl)curNode.getParent(); | |
| 883 | + if (parentNode.getValidPolicy().equals(ANY_POLICY)) { | |
| 884 | + if ((!initPolicies.contains(curPolicy)) && | |
| 885 | + (!curPolicy.equals(ANY_POLICY))) { | |
| 886 | + if (debug != null) | |
| 887 | + debug.println("PolicyChecker.processPolicies() " | |
| 888 | + + "before deleting: policy tree = " + rootNode); | |
| 889 | + parentNode.deleteChild(curNode); | |
| 890 | + childDeleted = true; | |
| 891 | + if (debug != null) | |
| 892 | + debug.println("PolicyChecker.processPolicies() " | |
| 893 | + + "after deleting: policy tree = " + rootNode); | |
| 894 | + } | |
| 895 | + } | |
| 896 | + } | |
| 897 | + } | |
| 898 | + | |
| 899 | + if (childDeleted) { | |
| 900 | + rootNode.prune(certIndex); | |
| 901 | + if (!rootNode.getChildren().hasNext()) { | |
| 902 | + rootNode = null; | |
| 903 | + } | |
| 904 | + } | |
| 905 | + | |
| 906 | + return rootNode; | |
| 907 | + } | |
| 908 | + | |
| 909 | + /** | |
| 910 | + * Gets the root node of the valid policy tree, or null if the | |
| 911 | + * valid policy tree is null. Marks each node of the returned tree | |
| 912 | + * immutable and thread-safe. | |
| 913 | + * | |
| 914 | + * @returns the root node of the valid policy tree, or null if | |
| 915 | + * the valid policy tree is null | |
| 916 | + */ | |
| 917 | + PolicyNode getPolicyTree() { | |
| 918 | + if (rootNode == null) | |
| 919 | + return null; | |
| 920 | + else { | |
| 921 | + PolicyNodeImpl policyTree = rootNode.copyTree(); | |
| 922 | + policyTree.setImmutable(); | |
| 923 | + return policyTree; | |
| 924 | + } | |
| 925 | + } | |
| 926 | +} | |