J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2005-2006 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.security.jgss.spnego; |
| 27 | |
| 28 | import java.io.*; |
| 29 | import java.security.Provider; |
| 30 | import java.util.List; |
| 31 | import java.util.ArrayList; |
| 32 | import org.ietf.jgss.*; |
| 33 | import sun.security.jgss.*; |
| 34 | import sun.security.jgss.spi.*; |
| 35 | import sun.security.util.*; |
| 36 | |
| 37 | /** |
| 38 | * Implements the mechanism specific context class for SPNEGO |
| 39 | * GSS-API mechanism |
| 40 | * |
| 41 | * @author Seema Malkani |
| 42 | * @since 1.6 |
| 43 | */ |
| 44 | public class SpNegoContext implements GSSContextSpi { |
| 45 | |
| 46 | /* |
| 47 | * The different states that this context can be in. |
| 48 | */ |
| 49 | private static final int STATE_NEW = 1; |
| 50 | private static final int STATE_IN_PROCESS = 2; |
| 51 | private static final int STATE_DONE = 3; |
| 52 | private static final int STATE_DELETED = 4; |
| 53 | |
| 54 | private int state = STATE_NEW; |
| 55 | |
| 56 | private static final int CHECKSUM_DELEG_FLAG = 1; |
| 57 | private static final int CHECKSUM_MUTUAL_FLAG = 2; |
| 58 | private static final int CHECKSUM_REPLAY_FLAG = 4; |
| 59 | private static final int CHECKSUM_SEQUENCE_FLAG = 8; |
| 60 | private static final int CHECKSUM_CONF_FLAG = 16; |
| 61 | private static final int CHECKSUM_INTEG_FLAG = 32; |
| 62 | |
| 63 | /* |
| 64 | * Optional features that the application can set and their default |
| 65 | * values. |
| 66 | */ |
| 67 | private boolean credDelegState = false; |
| 68 | private boolean mutualAuthState = true; |
| 69 | private boolean replayDetState = true; |
| 70 | private boolean sequenceDetState = true; |
| 71 | private boolean confState = true; |
| 72 | private boolean integState = true; |
| 73 | |
| 74 | private GSSNameSpi peerName = null; |
| 75 | private GSSNameSpi myName = null; |
| 76 | private SpNegoCredElement myCred = null; |
| 77 | |
| 78 | private GSSContext mechContext = null; |
| 79 | private byte[] DER_mechTypes = null; |
| 80 | |
| 81 | private int lifetime; |
| 82 | private ChannelBinding channelBinding; |
| 83 | private boolean initiator; |
| 84 | |
| 85 | // the underlying negotiated mechanism |
| 86 | private Oid internal_mech = null; |
| 87 | |
| 88 | // the SpNegoMechFactory that creates this context |
| 89 | final private SpNegoMechFactory factory; |
| 90 | |
| 91 | // debug property |
| 92 | static final boolean DEBUG = |
| 93 | java.security.AccessController.doPrivileged( |
| 94 | new sun.security.action.GetBooleanAction |
| 95 | ("sun.security.spnego.debug")).booleanValue(); |
| 96 | |
| 97 | /** |
| 98 | * Constructor for SpNegoContext to be called on the context initiator's |
| 99 | * side. |
| 100 | */ |
| 101 | public SpNegoContext(SpNegoMechFactory factory, GSSNameSpi peerName, |
| 102 | GSSCredentialSpi myCred, |
| 103 | int lifetime) throws GSSException { |
| 104 | |
| 105 | if (peerName == null) |
| 106 | throw new IllegalArgumentException("Cannot have null peer name"); |
| 107 | if ((myCred != null) && !(myCred instanceof SpNegoCredElement)) { |
| 108 | throw new IllegalArgumentException("Wrong cred element type"); |
| 109 | } |
| 110 | this.peerName = peerName; |
| 111 | this.myCred = (SpNegoCredElement) myCred; |
| 112 | this.lifetime = lifetime; |
| 113 | this.initiator = true; |
| 114 | this.factory = factory; |
| 115 | } |
| 116 | |
| 117 | /** |
| 118 | * Constructor for SpNegoContext to be called on the context acceptor's |
| 119 | * side. |
| 120 | */ |
| 121 | public SpNegoContext(SpNegoMechFactory factory, GSSCredentialSpi myCred) |
| 122 | throws GSSException { |
| 123 | if ((myCred != null) && !(myCred instanceof SpNegoCredElement)) { |
| 124 | throw new IllegalArgumentException("Wrong cred element type"); |
| 125 | } |
| 126 | this.myCred = (SpNegoCredElement) myCred; |
| 127 | this.initiator = false; |
| 128 | this.factory = factory; |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * Constructor for SpNegoContext to import a previously exported context. |
| 133 | */ |
| 134 | public SpNegoContext(SpNegoMechFactory factory, byte [] interProcessToken) |
| 135 | throws GSSException { |
| 136 | throw new GSSException(GSSException.UNAVAILABLE, |
| 137 | -1, "GSS Import Context not available"); |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * Requests that confidentiality be available. |
| 142 | */ |
| 143 | public final void requestConf(boolean value) throws GSSException { |
| 144 | if (state == STATE_NEW && isInitiator()) |
| 145 | confState = value; |
| 146 | } |
| 147 | |
| 148 | /** |
| 149 | * Is confidentiality available? |
| 150 | */ |
| 151 | public final boolean getConfState() { |
| 152 | return confState; |
| 153 | } |
| 154 | |
| 155 | /** |
| 156 | * Requests that integrity be available. |
| 157 | */ |
| 158 | public final void requestInteg(boolean value) throws GSSException { |
| 159 | if (state == STATE_NEW && isInitiator()) |
| 160 | integState = value; |
| 161 | } |
| 162 | |
| 163 | /** |
| 164 | * Is integrity available? |
| 165 | */ |
| 166 | public final boolean getIntegState() { |
| 167 | return integState; |
| 168 | } |
| 169 | |
| 170 | /** |
| 171 | * Requests that credential delegation be done during context |
| 172 | * establishment. |
| 173 | */ |
| 174 | public final void requestCredDeleg(boolean value) throws GSSException { |
| 175 | if (state == STATE_NEW && isInitiator()) |
| 176 | credDelegState = value; |
| 177 | } |
| 178 | |
| 179 | /** |
| 180 | * Is credential delegation enabled? |
| 181 | */ |
| 182 | public final boolean getCredDelegState() { |
| 183 | if (mechContext != null && |
| 184 | (state == STATE_IN_PROCESS || state == STATE_DONE)) { |
| 185 | return mechContext.getCredDelegState(); |
| 186 | } else { |
| 187 | return credDelegState; |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | /** |
| 192 | * Requests that mutual authentication be done during context |
| 193 | * establishment. Since this is fromm the client's perspective, it |
| 194 | * essentially requests that the server be authenticated. |
| 195 | */ |
| 196 | public final void requestMutualAuth(boolean value) throws GSSException { |
| 197 | if (state == STATE_NEW && isInitiator()) { |
| 198 | mutualAuthState = value; |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | /** |
| 203 | * Is mutual authentication enabled? Since this is from the client's |
| 204 | * perspective, it essentially meas that the server is being |
| 205 | * authenticated. |
| 206 | */ |
| 207 | public final boolean getMutualAuthState() { |
| 208 | return mutualAuthState; |
| 209 | } |
| 210 | |
| 211 | final void setCredDelegState(boolean state) { |
| 212 | credDelegState = state; |
| 213 | } |
| 214 | |
| 215 | final void setMutualAuthState(boolean state) { |
| 216 | mutualAuthState = state; |
| 217 | } |
| 218 | |
| 219 | final void setReplayDetState(boolean state) { |
| 220 | replayDetState = state; |
| 221 | } |
| 222 | |
| 223 | final void setSequenceDetState(boolean state) { |
| 224 | sequenceDetState = state; |
| 225 | } |
| 226 | |
| 227 | final void setConfState(boolean state) { |
| 228 | confState = state; |
| 229 | } |
| 230 | |
| 231 | final void setIntegState(boolean state) { |
| 232 | integState = state; |
| 233 | } |
| 234 | |
| 235 | /** |
| 236 | * Returns the mechanism oid. |
| 237 | * |
| 238 | * @return the Oid of this context |
| 239 | */ |
| 240 | public final Oid getMech() { |
| 241 | if (isEstablished()) { |
| 242 | return getNegotiatedMech(); |
| 243 | } |
| 244 | return (SpNegoMechFactory.GSS_SPNEGO_MECH_OID); |
| 245 | } |
| 246 | |
| 247 | public final Oid getNegotiatedMech() { |
| 248 | return (internal_mech); |
| 249 | } |
| 250 | |
| 251 | public final Provider getProvider() { |
| 252 | return SpNegoMechFactory.PROVIDER; |
| 253 | } |
| 254 | |
| 255 | public final void dispose() throws GSSException { |
| 256 | mechContext = null; |
| 257 | state = STATE_DELETED; |
| 258 | } |
| 259 | |
| 260 | /** |
| 261 | * Tests if this is the initiator side of the context. |
| 262 | * |
| 263 | * @return boolean indicating if this is initiator (true) |
| 264 | * or target (false) |
| 265 | */ |
| 266 | public final boolean isInitiator() { |
| 267 | return initiator; |
| 268 | } |
| 269 | |
| 270 | /** |
| 271 | * Tests if the context can be used for per-message service. |
| 272 | * Context may allow the calls to the per-message service |
| 273 | * functions before being fully established. |
| 274 | * |
| 275 | * @return boolean indicating if per-message methods can |
| 276 | * be called. |
| 277 | */ |
| 278 | public final boolean isProtReady() { |
| 279 | return (state == STATE_DONE); |
| 280 | } |
| 281 | |
| 282 | /** |
| 283 | * Initiator context establishment call. This method may be |
| 284 | * required to be called several times. A CONTINUE_NEEDED return |
| 285 | * call indicates that more calls are needed after the next token |
| 286 | * is received from the peer. |
| 287 | * |
| 288 | * @param is contains the token received from the peer. On the |
| 289 | * first call it will be ignored. |
| 290 | * @return any token required to be sent to the peer |
| 291 | * It is responsibility of the caller to send the token |
| 292 | * to its peer for processing. |
| 293 | * @exception GSSException |
| 294 | */ |
| 295 | public final byte[] initSecContext(InputStream is, int mechTokenSize) |
| 296 | throws GSSException { |
| 297 | |
| 298 | byte[] retVal = null; |
| 299 | NegTokenInit initToken = null; |
| 300 | byte[] mechToken = null; |
| 301 | int errorCode = GSSException.FAILURE; |
| 302 | |
| 303 | if (DEBUG) { |
| 304 | System.out.println("Entered SpNego.initSecContext with " + |
| 305 | "state=" + printState(state)); |
| 306 | } |
| 307 | if (!isInitiator()) { |
| 308 | throw new GSSException(GSSException.FAILURE, -1, |
| 309 | "initSecContext on an acceptor GSSContext"); |
| 310 | } |
| 311 | |
| 312 | try { |
| 313 | if (state == STATE_NEW) { |
| 314 | state = STATE_IN_PROCESS; |
| 315 | |
| 316 | errorCode = GSSException.NO_CRED; |
| 317 | |
| 318 | // determine available mech set |
| 319 | Oid[] mechList = getAvailableMechs(); |
| 320 | DER_mechTypes = getEncodedMechs(mechList); |
| 321 | |
| 322 | // pull out first mechanism |
| 323 | internal_mech = mechList[0]; |
| 324 | |
| 325 | // get the token for first mechanism |
| 326 | mechToken = GSS_initSecContext(null); |
| 327 | |
| 328 | errorCode = GSSException.DEFECTIVE_TOKEN; |
| 329 | byte[] micToken = null; |
| 330 | if (!GSSUtil.useMSInterop()) { |
| 331 | // calculate MIC only in normal mode |
| 332 | micToken = generateMechListMIC(DER_mechTypes); |
| 333 | } |
| 334 | // generate SPNEGO token |
| 335 | initToken = new NegTokenInit(DER_mechTypes, getContextFlags(), |
| 336 | mechToken, micToken); |
| 337 | if (DEBUG) { |
| 338 | System.out.println("SpNegoContext.initSecContext: " + |
| 339 | "sending token of type = " + |
| 340 | SpNegoToken.getTokenName(initToken.getType())); |
| 341 | } |
| 342 | // get the encoded token |
| 343 | retVal = initToken.getEncoded(); |
| 344 | |
| 345 | } else if (state == STATE_IN_PROCESS) { |
| 346 | |
| 347 | errorCode = GSSException.FAILURE; |
| 348 | if (is == null) { |
| 349 | throw new GSSException(errorCode, -1, |
| 350 | "No token received from peer!"); |
| 351 | } |
| 352 | |
| 353 | errorCode = GSSException.DEFECTIVE_TOKEN; |
| 354 | byte[] server_token = new byte[is.available()]; |
| 355 | SpNegoToken.readFully(is, server_token); |
| 356 | if (DEBUG) { |
| 357 | System.out.println("SpNegoContext.initSecContext: " + |
| 358 | "process received token = " + |
| 359 | SpNegoToken.getHexBytes(server_token)); |
| 360 | } |
| 361 | |
| 362 | // read the SPNEGO token |
| 363 | // token will be validated when parsing |
| 364 | NegTokenTarg targToken = new NegTokenTarg(server_token); |
| 365 | |
| 366 | if (DEBUG) { |
| 367 | System.out.println("SpNegoContext.initSecContext: " + |
| 368 | "received token of type = " + |
| 369 | SpNegoToken.getTokenName(targToken.getType())); |
| 370 | } |
| 371 | |
| 372 | // pull out mechanism |
| 373 | internal_mech = targToken.getSupportedMech(); |
| 374 | if (internal_mech == null) { |
| 375 | // return wth failure |
| 376 | throw new GSSException(errorCode, -1, |
| 377 | "supported mechansim from server is null"); |
| 378 | } |
| 379 | |
| 380 | // get the negotiated result |
| 381 | SpNegoToken.NegoResult negoResult = null; |
| 382 | int result = targToken.getNegotiatedResult(); |
| 383 | switch (result) { |
| 384 | case 0: |
| 385 | negoResult = SpNegoToken.NegoResult.ACCEPT_COMPLETE; |
| 386 | state = STATE_DONE; |
| 387 | break; |
| 388 | case 1: |
| 389 | negoResult = SpNegoToken.NegoResult.ACCEPT_INCOMPLETE; |
| 390 | state = STATE_IN_PROCESS; |
| 391 | break; |
| 392 | case 2: |
| 393 | negoResult = SpNegoToken.NegoResult.REJECT; |
| 394 | state = STATE_DELETED; |
| 395 | break; |
| 396 | default: |
| 397 | state = STATE_DONE; |
| 398 | break; |
| 399 | } |
| 400 | |
| 401 | errorCode = GSSException.BAD_MECH; |
| 402 | |
| 403 | if (negoResult == SpNegoToken.NegoResult.REJECT) { |
| 404 | throw new GSSException(errorCode, -1, |
| 405 | internal_mech.toString()); |
| 406 | } |
| 407 | |
| 408 | errorCode = GSSException.DEFECTIVE_TOKEN; |
| 409 | |
| 410 | if ((negoResult == SpNegoToken.NegoResult.ACCEPT_COMPLETE) || |
| 411 | (negoResult == SpNegoToken.NegoResult.ACCEPT_INCOMPLETE)) { |
| 412 | |
| 413 | // pull out the mechanism token |
| 414 | byte[] accept_token = targToken.getResponseToken(); |
| 415 | if (accept_token == null) { |
| 416 | // return wth failure |
| 417 | throw new GSSException(errorCode, -1, |
| 418 | "mechansim token from server is null"); |
| 419 | } |
| 420 | |
| 421 | mechToken = GSS_initSecContext(accept_token); |
| 422 | |
| 423 | // verify MIC |
| 424 | if (!GSSUtil.useMSInterop()) { |
| 425 | byte[] micToken = targToken.getMechListMIC(); |
| 426 | if (!verifyMechListMIC(DER_mechTypes, micToken)) { |
| 427 | throw new GSSException(errorCode, -1, |
| 428 | "verification of MIC on MechList Failed!"); |
| 429 | } |
| 430 | } |
| 431 | |
| 432 | if (isMechContextEstablished()) { |
| 433 | state = STATE_DONE; |
| 434 | retVal = mechToken; |
| 435 | if (DEBUG) { |
| 436 | System.out.println("SPNEGO Negotiated Mechanism = " |
| 437 | + internal_mech + " " + |
| 438 | GSSUtil.getMechStr(internal_mech)); |
| 439 | } |
| 440 | } else { |
| 441 | // generate SPNEGO token |
| 442 | initToken = new NegTokenInit(null, null, |
| 443 | mechToken, null); |
| 444 | if (DEBUG) { |
| 445 | System.out.println("SpNegoContext.initSecContext:" + |
| 446 | " continue sending token of type = " + |
| 447 | SpNegoToken.getTokenName(initToken.getType())); |
| 448 | } |
| 449 | // get the encoded token |
| 450 | retVal = initToken.getEncoded(); |
| 451 | } |
| 452 | } |
| 453 | |
| 454 | } else { |
| 455 | // XXX Use logging API |
| 456 | if (DEBUG) { |
| 457 | System.out.println(state); |
| 458 | } |
| 459 | } |
| 460 | if (DEBUG) { |
| 461 | if (retVal != null) { |
| 462 | System.out.println("SNegoContext.initSecContext: " + |
| 463 | "sending token = " + SpNegoToken.getHexBytes(retVal)); |
| 464 | } |
| 465 | } |
| 466 | } catch (GSSException e) { |
| 467 | GSSException gssException = |
| 468 | new GSSException(errorCode, -1, e.getMessage()); |
| 469 | gssException.initCause(e); |
| 470 | throw gssException; |
| 471 | } catch (IOException e) { |
| 472 | GSSException gssException = |
| 473 | new GSSException(GSSException.FAILURE, -1, e.getMessage()); |
| 474 | gssException.initCause(e); |
| 475 | throw gssException; |
| 476 | } |
| 477 | |
| 478 | return retVal; |
| 479 | } |
| 480 | |
| 481 | |
| 482 | /** |
| 483 | * Acceptor's context establishment call. This method may be |
| 484 | * required to be called several times. A CONTINUE_NEEDED return |
| 485 | * call indicates that more calls are needed after the next token |
| 486 | * is received from the peer. |
| 487 | * |
| 488 | * @param is contains the token received from the peer. |
| 489 | * @return any token required to be sent to the peer |
| 490 | * It is responsibility of the caller to send the token |
| 491 | * to its peer for processing. |
| 492 | * @exception GSSException |
| 493 | */ |
| 494 | public final byte[] acceptSecContext(InputStream is, int mechTokenSize) |
| 495 | throws GSSException { |
| 496 | |
| 497 | byte[] retVal = null; |
| 498 | SpNegoToken.NegoResult negoResult; |
| 499 | boolean valid = true; |
| 500 | |
| 501 | if (DEBUG) { |
| 502 | System.out.println("Entered SpNegoContext.acceptSecContext with " + |
| 503 | "state=" + printState(state)); |
| 504 | } |
| 505 | |
| 506 | if (isInitiator()) { |
| 507 | throw new GSSException(GSSException.FAILURE, -1, |
| 508 | "acceptSecContext on an initiator " + |
| 509 | "GSSContext"); |
| 510 | } |
| 511 | try { |
| 512 | if (state == STATE_NEW) { |
| 513 | state = STATE_IN_PROCESS; |
| 514 | |
| 515 | // read data |
| 516 | byte[] token = new byte[is.available()]; |
| 517 | SpNegoToken.readFully(is, token); |
| 518 | if (DEBUG) { |
| 519 | System.out.println("SpNegoContext.acceptSecContext: " + |
| 520 | "receiving token = " + |
| 521 | SpNegoToken.getHexBytes(token)); |
| 522 | } |
| 523 | |
| 524 | // read the SPNEGO token |
| 525 | // token will be validated when parsing |
| 526 | NegTokenInit initToken = new NegTokenInit(token); |
| 527 | |
| 528 | if (DEBUG) { |
| 529 | System.out.println("SpNegoContext.acceptSecContext: " + |
| 530 | "received token of type = " + |
| 531 | SpNegoToken.getTokenName(initToken.getType())); |
| 532 | } |
| 533 | |
| 534 | Oid[] mechList = initToken.getMechTypeList(); |
| 535 | DER_mechTypes = initToken.getMechTypes(); |
| 536 | if (DER_mechTypes == null) { |
| 537 | valid = false; |
| 538 | } |
| 539 | |
| 540 | // get the mechanism token |
| 541 | byte[] mechToken = initToken.getMechToken(); |
| 542 | |
| 543 | /* |
| 544 | * Select the best match between the list of mechs |
| 545 | * that the initiator requested and the list that |
| 546 | * the acceptor will support. |
| 547 | */ |
| 548 | Oid[] supported_mechSet = getAvailableMechs(); |
| 549 | Oid mech_wanted = |
| 550 | negotiate_mech_type(supported_mechSet, mechList); |
| 551 | if (mech_wanted == null) { |
| 552 | valid = false; |
| 553 | } |
| 554 | // save the desired mechansim |
| 555 | internal_mech = mech_wanted; |
| 556 | |
| 557 | // get the token for mechanism |
| 558 | byte[] accept_token = GSS_acceptSecContext(mechToken); |
| 559 | if (accept_token == null) { |
| 560 | valid = false; |
| 561 | } |
| 562 | |
| 563 | // verify MIC |
| 564 | if (!GSSUtil.useMSInterop() && valid) { |
| 565 | valid = verifyMechListMIC(DER_mechTypes, |
| 566 | initToken.getMechListMIC()); |
| 567 | } |
| 568 | |
| 569 | // determine negotiated result status |
| 570 | if (valid) { |
| 571 | if (isMechContextEstablished()) { |
| 572 | negoResult = SpNegoToken.NegoResult.ACCEPT_COMPLETE; |
| 573 | state = STATE_DONE; |
| 574 | // now set the context flags for acceptor |
| 575 | setContextFlags(); |
| 576 | // print the negotiated mech info |
| 577 | if (DEBUG) { |
| 578 | System.out.println("SPNEGO Negotiated Mechanism = " |
| 579 | + internal_mech + " " + |
| 580 | GSSUtil.getMechStr(internal_mech)); |
| 581 | } |
| 582 | } else { |
| 583 | negoResult = SpNegoToken.NegoResult.ACCEPT_INCOMPLETE; |
| 584 | state = STATE_IN_PROCESS; |
| 585 | } |
| 586 | } else { |
| 587 | negoResult = SpNegoToken.NegoResult.REJECT; |
| 588 | state = STATE_DONE; |
| 589 | } |
| 590 | |
| 591 | if (DEBUG) { |
| 592 | System.out.println("SpNegoContext.acceptSecContext: " + |
| 593 | "mechanism wanted = " + mech_wanted); |
| 594 | System.out.println("SpNegoContext.acceptSecContext: " + |
| 595 | "negotiated result = " + negoResult); |
| 596 | } |
| 597 | |
| 598 | // calculate MIC only in normal mode |
| 599 | byte[] micToken = null; |
| 600 | if (!GSSUtil.useMSInterop() && valid) { |
| 601 | micToken = generateMechListMIC(DER_mechTypes); |
| 602 | } |
| 603 | |
| 604 | // generate SPNEGO token |
| 605 | NegTokenTarg targToken = new NegTokenTarg(negoResult.ordinal(), |
| 606 | mech_wanted, accept_token, micToken); |
| 607 | if (DEBUG) { |
| 608 | System.out.println("SpNegoContext.acceptSecContext: " + |
| 609 | "sending token of type = " + |
| 610 | SpNegoToken.getTokenName(targToken.getType())); |
| 611 | } |
| 612 | // get the encoded token |
| 613 | retVal = targToken.getEncoded(); |
| 614 | |
| 615 | } else if (state == STATE_IN_PROCESS) { |
| 616 | // read the token |
| 617 | byte[] client_token = new byte[is.available()]; |
| 618 | SpNegoToken.readFully(is, client_token); |
| 619 | byte[] accept_token = GSS_acceptSecContext(client_token); |
| 620 | if (accept_token == null) { |
| 621 | valid = false; |
| 622 | } |
| 623 | |
| 624 | // determine negotiated result status |
| 625 | if (valid) { |
| 626 | if (isMechContextEstablished()) { |
| 627 | negoResult = SpNegoToken.NegoResult.ACCEPT_COMPLETE; |
| 628 | state = STATE_DONE; |
| 629 | } else { |
| 630 | negoResult = SpNegoToken.NegoResult.ACCEPT_INCOMPLETE; |
| 631 | state = STATE_IN_PROCESS; |
| 632 | } |
| 633 | } else { |
| 634 | negoResult = SpNegoToken.NegoResult.REJECT; |
| 635 | state = STATE_DONE; |
| 636 | } |
| 637 | |
| 638 | // generate SPNEGO token |
| 639 | NegTokenTarg targToken = new NegTokenTarg(negoResult.ordinal(), |
| 640 | null, accept_token, null); |
| 641 | if (DEBUG) { |
| 642 | System.out.println("SpNegoContext.acceptSecContext: " + |
| 643 | "sending token of type = " + |
| 644 | SpNegoToken.getTokenName(targToken.getType())); |
| 645 | } |
| 646 | // get the encoded token |
| 647 | retVal = targToken.getEncoded(); |
| 648 | |
| 649 | } else { |
| 650 | // XXX Use logging API |
| 651 | if (DEBUG) { |
| 652 | System.out.println("AcceptSecContext: state = " + state); |
| 653 | } |
| 654 | } |
| 655 | if (DEBUG) { |
| 656 | System.out.println("SpNegoContext.acceptSecContext: " + |
| 657 | "sending token = " + SpNegoToken.getHexBytes(retVal)); |
| 658 | } |
| 659 | } catch (IOException e) { |
| 660 | GSSException gssException = |
| 661 | new GSSException(GSSException.FAILURE, -1, e.getMessage()); |
| 662 | gssException.initCause(e); |
| 663 | throw gssException; |
| 664 | } |
| 665 | |
| 666 | return retVal; |
| 667 | } |
| 668 | |
| 669 | /** |
| 670 | * obtain the available mechanisms |
| 671 | */ |
| 672 | private Oid[] getAvailableMechs() { |
| 673 | if (myCred != null) { |
| 674 | Oid[] mechs = new Oid[1]; |
| 675 | mechs[0] = myCred.getInternalMech(); |
| 676 | return mechs; |
| 677 | } else { |
| 678 | return factory.availableMechs; |
| 679 | } |
| 680 | } |
| 681 | |
| 682 | /** |
| 683 | * get ther DER encoded MechList |
| 684 | */ |
| 685 | private byte[] getEncodedMechs(Oid[] mechSet) |
| 686 | throws IOException, GSSException { |
| 687 | |
| 688 | DerOutputStream mech = new DerOutputStream(); |
| 689 | for (int i = 0; i < mechSet.length; i++) { |
| 690 | byte[] mechType = mechSet[i].getDER(); |
| 691 | mech.write(mechType); |
| 692 | } |
| 693 | // insert in SEQUENCE |
| 694 | DerOutputStream mechTypeList = new DerOutputStream(); |
| 695 | mechTypeList.write(DerValue.tag_Sequence, mech); |
| 696 | byte[] encoded = mechTypeList.toByteArray(); |
| 697 | return encoded; |
| 698 | } |
| 699 | |
| 700 | /** |
| 701 | * get the context flags |
| 702 | */ |
| 703 | private byte[] getContextFlags() { |
| 704 | int flags = 0; |
| 705 | |
| 706 | if (getCredDelegState()) |
| 707 | flags |= CHECKSUM_DELEG_FLAG; |
| 708 | if (getMutualAuthState()) |
| 709 | flags |= CHECKSUM_MUTUAL_FLAG; |
| 710 | if (getReplayDetState()) |
| 711 | flags |= CHECKSUM_REPLAY_FLAG; |
| 712 | if (getSequenceDetState()) |
| 713 | flags |= CHECKSUM_SEQUENCE_FLAG; |
| 714 | if (getIntegState()) |
| 715 | flags |= CHECKSUM_INTEG_FLAG; |
| 716 | if (getConfState()) |
| 717 | flags |= CHECKSUM_CONF_FLAG; |
| 718 | |
| 719 | byte[] temp = new byte[1]; |
| 720 | temp[0] = (byte)(flags & 0xff); |
| 721 | return temp; |
| 722 | } |
| 723 | |
| 724 | private void setContextFlags() { |
| 725 | |
| 726 | if (mechContext != null) { |
| 727 | // default for cred delegation is false |
| 728 | if (mechContext.getCredDelegState()) { |
| 729 | setCredDelegState(true); |
| 730 | } |
| 731 | // default for the following are true |
| 732 | if (!mechContext.getMutualAuthState()) { |
| 733 | setMutualAuthState(false); |
| 734 | } |
| 735 | if (!mechContext.getReplayDetState()) { |
| 736 | setReplayDetState(false); |
| 737 | } |
| 738 | if (!mechContext.getSequenceDetState()) { |
| 739 | setSequenceDetState(false); |
| 740 | } |
| 741 | if (!mechContext.getIntegState()) { |
| 742 | setIntegState(false); |
| 743 | } |
| 744 | if (!mechContext.getConfState()) { |
| 745 | setConfState(false); |
| 746 | } |
| 747 | } |
| 748 | } |
| 749 | |
| 750 | /** |
| 751 | * generate MIC on mechList |
| 752 | */ |
| 753 | private byte[] generateMechListMIC(byte[] mechTypes) |
| 754 | throws GSSException { |
| 755 | |
| 756 | // sanity check the required input |
| 757 | if (mechTypes == null) { |
| 758 | if (DEBUG) { |
| 759 | System.out.println("SpNegoContext: no MIC token included"); |
| 760 | } |
| 761 | return null; |
| 762 | } |
| 763 | |
| 764 | // check if mechansim supports integrity |
| 765 | if (!mechContext.getIntegState()) { |
| 766 | if (DEBUG) { |
| 767 | System.out.println("SpNegoContext: no MIC token included" + |
| 768 | " - mechanism does not support integrity"); |
| 769 | } |
| 770 | return null; |
| 771 | } |
| 772 | |
| 773 | // compute MIC on DER encoded mechanism list |
| 774 | byte[] mic = null; |
| 775 | try { |
| 776 | MessageProp prop = new MessageProp(0, true); |
| 777 | mic = getMIC(mechTypes, 0, mechTypes.length, prop); |
| 778 | if (DEBUG) { |
| 779 | System.out.println("SpNegoContext: getMIC = " + |
| 780 | SpNegoToken.getHexBytes(mic)); |
| 781 | } |
| 782 | } catch (GSSException e) { |
| 783 | mic = null; |
| 784 | if (DEBUG) { |
| 785 | System.out.println("SpNegoContext: no MIC token included" + |
| 786 | " - getMIC failed : " + e.getMessage()); |
| 787 | } |
| 788 | } |
| 789 | return mic; |
| 790 | } |
| 791 | |
| 792 | /** |
| 793 | * verify MIC on MechList |
| 794 | */ |
| 795 | private boolean verifyMechListMIC(byte[] mechTypes, byte[] token) |
| 796 | throws GSSException { |
| 797 | |
| 798 | // sanity check the input |
| 799 | if (token == null) { |
| 800 | if (DEBUG) { |
| 801 | System.out.println("SpNegoContext: no MIC token validation"); |
| 802 | } |
| 803 | return true; |
| 804 | } |
| 805 | |
| 806 | // check if mechansim supports integrity |
| 807 | if (!mechContext.getIntegState()) { |
| 808 | if (DEBUG) { |
| 809 | System.out.println("SpNegoContext: no MIC token validation" + |
| 810 | " - mechanism does not support integrity"); |
| 811 | } |
| 812 | return true; |
| 813 | } |
| 814 | |
| 815 | // now verify the token |
| 816 | boolean valid = false; |
| 817 | try { |
| 818 | MessageProp prop = new MessageProp(0, true); |
| 819 | verifyMIC(token, 0, token.length, mechTypes, |
| 820 | 0, mechTypes.length, prop); |
| 821 | valid = true; |
| 822 | } catch (GSSException e) { |
| 823 | valid = false; |
| 824 | if (DEBUG) { |
| 825 | System.out.println("SpNegoContext: MIC validation failed! " + |
| 826 | e.getMessage()); |
| 827 | } |
| 828 | } |
| 829 | return valid; |
| 830 | } |
| 831 | |
| 832 | /** |
| 833 | * call gss_init_sec_context for the corresponding underlying mechanism |
| 834 | */ |
| 835 | private byte[] GSS_initSecContext(byte[] token) throws GSSException { |
| 836 | byte[] tok = null; |
| 837 | |
| 838 | if (mechContext == null) { |
| 839 | // initialize mech context |
| 840 | GSSName serverName = |
| 841 | factory.manager.createName(peerName.toString(), |
| 842 | peerName.getStringNameType(), internal_mech); |
| 843 | GSSCredential cred = null; |
| 844 | if (myCred != null) { |
| 845 | // create context with provided credential |
| 846 | cred = new GSSCredentialImpl(factory.manager, |
| 847 | myCred.getInternalCred()); |
| 848 | } |
| 849 | mechContext = |
| 850 | factory.manager.createContext(serverName, |
| 851 | internal_mech, cred, GSSContext.DEFAULT_LIFETIME); |
| 852 | mechContext.requestConf(confState); |
| 853 | mechContext.requestInteg(integState); |
| 854 | mechContext.requestCredDeleg(credDelegState); |
| 855 | mechContext.requestMutualAuth(mutualAuthState); |
| 856 | mechContext.requestReplayDet(replayDetState); |
| 857 | mechContext.requestSequenceDet(sequenceDetState); |
| 858 | } |
| 859 | |
| 860 | // pass token |
| 861 | if (token != null) { |
| 862 | tok = token; |
| 863 | } else { |
| 864 | tok = new byte[0]; |
| 865 | } |
| 866 | |
| 867 | // pass token to mechanism initSecContext |
| 868 | byte[] init_token = mechContext.initSecContext(tok, 0, tok.length); |
| 869 | |
| 870 | return init_token; |
| 871 | } |
| 872 | |
| 873 | /** |
| 874 | * call gss_accept_sec_context for the corresponding underlying mechanism |
| 875 | */ |
| 876 | private byte[] GSS_acceptSecContext(byte[] token) throws GSSException { |
| 877 | |
| 878 | if (mechContext == null) { |
| 879 | // initialize mech context |
| 880 | GSSCredential cred = null; |
| 881 | if (myCred != null) { |
| 882 | // create context with provided credential |
| 883 | cred = new GSSCredentialImpl(factory.manager, |
| 884 | myCred.getInternalCred()); |
| 885 | } |
| 886 | mechContext = |
| 887 | factory.manager.createContext(cred); |
| 888 | } |
| 889 | |
| 890 | // pass token to mechanism acceptSecContext |
| 891 | byte[] accept_token = |
| 892 | mechContext.acceptSecContext(token, 0, token.length); |
| 893 | |
| 894 | return accept_token; |
| 895 | } |
| 896 | |
| 897 | /** |
| 898 | * This routine compares the recieved mechset to the mechset that |
| 899 | * this server can support. It looks sequentially through the mechset |
| 900 | * and the first one that matches what the server can support is |
| 901 | * chosen as the negotiated mechanism. If one is found, negResult |
| 902 | * is set to ACCEPT_COMPLETE, otherwise we return NULL and negResult |
| 903 | * is set to REJECT. |
| 904 | */ |
| 905 | private static Oid negotiate_mech_type(Oid[] supported_mechSet, |
| 906 | Oid[] mechSet) { |
| 907 | for (int i = 0; i < supported_mechSet.length; i++) { |
| 908 | for (int j = 0; j < mechSet.length; j++) { |
| 909 | if (mechSet[j].equals(supported_mechSet[i])) { |
| 910 | if (DEBUG) { |
| 911 | System.out.println("SpNegoContext: " + |
| 912 | "negotiated mechanism = " + mechSet[j]); |
| 913 | } |
| 914 | return (mechSet[j]); |
| 915 | } |
| 916 | } |
| 917 | } |
| 918 | return null; |
| 919 | } |
| 920 | |
| 921 | public final boolean isEstablished() { |
| 922 | return (state == STATE_DONE); |
| 923 | } |
| 924 | |
| 925 | public final boolean isMechContextEstablished() { |
| 926 | if (mechContext != null) { |
| 927 | return mechContext.isEstablished(); |
| 928 | } else { |
| 929 | if (DEBUG) { |
| 930 | System.out.println("The underlying mechansim context has " + |
| 931 | "not been initialized"); |
| 932 | } |
| 933 | return false; |
| 934 | } |
| 935 | } |
| 936 | |
| 937 | public final byte [] export() throws GSSException { |
| 938 | throw new GSSException(GSSException.UNAVAILABLE, -1, |
| 939 | "GSS Export Context not available"); |
| 940 | } |
| 941 | |
| 942 | /** |
| 943 | * Sets the channel bindings to be used during context |
| 944 | * establishment. |
| 945 | */ |
| 946 | public final void setChannelBinding(ChannelBinding channelBinding) |
| 947 | throws GSSException { |
| 948 | this.channelBinding = channelBinding; |
| 949 | } |
| 950 | |
| 951 | final ChannelBinding getChannelBinding() { |
| 952 | return channelBinding; |
| 953 | } |
| 954 | |
| 955 | /* |
| 956 | * Anonymity is a little different in that after an application |
| 957 | * requests anonymity it will want to know whether the mechanism |
| 958 | * can support it or not, prior to sending any tokens across for |
| 959 | * context establishment. Since this is from the initiator's |
| 960 | * perspective, it essentially requests that the initiator be |
| 961 | * anonymous. |
| 962 | */ |
| 963 | public final void requestAnonymity(boolean value) throws GSSException { |
| 964 | // Ignore silently. Application will check back with |
| 965 | // getAnonymityState. |
| 966 | } |
| 967 | |
| 968 | // RFC 2853 actually calls for this to be called after context |
| 969 | // establishment to get the right answer, but that is |
| 970 | // incorrect. The application may not want to send over any |
| 971 | // tokens if anonymity is not available. |
| 972 | public final boolean getAnonymityState() { |
| 973 | return false; |
| 974 | } |
| 975 | |
| 976 | /** |
| 977 | * Requests the desired lifetime. Can only be used on the context |
| 978 | * initiator's side. |
| 979 | */ |
| 980 | public void requestLifetime(int lifetime) throws GSSException { |
| 981 | if (state == STATE_NEW && isInitiator()) |
| 982 | this.lifetime = lifetime; |
| 983 | } |
| 984 | |
| 985 | /** |
| 986 | * The lifetime remaining for this context. |
| 987 | */ |
| 988 | public final int getLifetime() { |
| 989 | if (mechContext != null) { |
| 990 | return mechContext.getLifetime(); |
| 991 | } else { |
| 992 | return GSSContext.INDEFINITE_LIFETIME; |
| 993 | } |
| 994 | } |
| 995 | |
| 996 | public final boolean isTransferable() throws GSSException { |
| 997 | return false; |
| 998 | } |
| 999 | |
| 1000 | /** |
| 1001 | * Requests that sequence checking be done on the GSS wrap and MIC |
| 1002 | * tokens. |
| 1003 | */ |
| 1004 | public final void requestSequenceDet(boolean value) throws GSSException { |
| 1005 | if (state == STATE_NEW && isInitiator()) |
| 1006 | sequenceDetState = value; |
| 1007 | } |
| 1008 | |
| 1009 | /** |
| 1010 | * Is sequence checking enabled on the GSS Wrap and MIC tokens? |
| 1011 | * We enable sequence checking if replay detection is enabled. |
| 1012 | */ |
| 1013 | public final boolean getSequenceDetState() { |
| 1014 | return sequenceDetState || replayDetState; |
| 1015 | } |
| 1016 | |
| 1017 | /** |
| 1018 | * Requests that replay detection be done on the GSS wrap and MIC |
| 1019 | * tokens. |
| 1020 | */ |
| 1021 | public final void requestReplayDet(boolean value) throws GSSException { |
| 1022 | if (state == STATE_NEW && isInitiator()) |
| 1023 | replayDetState = value; |
| 1024 | } |
| 1025 | |
| 1026 | /** |
| 1027 | * Is replay detection enabled on the GSS wrap and MIC tokens? |
| 1028 | * We enable replay detection if sequence checking is enabled. |
| 1029 | */ |
| 1030 | public final boolean getReplayDetState() { |
| 1031 | return replayDetState || sequenceDetState; |
| 1032 | } |
| 1033 | |
| 1034 | public final GSSNameSpi getTargName() throws GSSException { |
| 1035 | // fill-in the GSSName |
| 1036 | // get the peer name for the mechanism |
| 1037 | if (mechContext != null) { |
| 1038 | GSSNameImpl targName = (GSSNameImpl)mechContext.getTargName(); |
| 1039 | peerName = (GSSNameSpi) targName.getElement(internal_mech); |
| 1040 | return peerName; |
| 1041 | } else { |
| 1042 | if (DEBUG) { |
| 1043 | System.out.println("The underlying mechansim context has " + |
| 1044 | "not been initialized"); |
| 1045 | } |
| 1046 | return null; |
| 1047 | } |
| 1048 | } |
| 1049 | |
| 1050 | public final GSSNameSpi getSrcName() throws GSSException { |
| 1051 | // fill-in the GSSName |
| 1052 | // get the src name for the mechanism |
| 1053 | if (mechContext != null) { |
| 1054 | GSSNameImpl srcName = (GSSNameImpl)mechContext.getSrcName(); |
| 1055 | myName = (GSSNameSpi) srcName.getElement(internal_mech); |
| 1056 | return myName; |
| 1057 | } else { |
| 1058 | if (DEBUG) { |
| 1059 | System.out.println("The underlying mechansim context has " + |
| 1060 | "not been initialized"); |
| 1061 | } |
| 1062 | return null; |
| 1063 | } |
| 1064 | } |
| 1065 | |
| 1066 | /** |
| 1067 | * Returns the delegated credential for the context. This |
| 1068 | * is an optional feature of contexts which not all |
| 1069 | * mechanisms will support. A context can be requested to |
| 1070 | * support credential delegation by using the <b>CRED_DELEG</b>. |
| 1071 | * This is only valid on the acceptor side of the context. |
| 1072 | * @return GSSCredentialSpi object for the delegated credential |
| 1073 | * @exception GSSException |
| 1074 | * @see GSSContext#getDelegCredState |
| 1075 | */ |
| 1076 | public final GSSCredentialSpi getDelegCred() throws GSSException { |
| 1077 | if (state != STATE_IN_PROCESS && state != STATE_DONE) |
| 1078 | throw new GSSException(GSSException.NO_CONTEXT); |
| 1079 | if (mechContext != null) { |
| 1080 | GSSCredentialImpl delegCred = |
| 1081 | (GSSCredentialImpl)mechContext.getDelegCred(); |
| 1082 | // determine delegated cred element usage |
| 1083 | boolean initiate = false; |
| 1084 | if (delegCred.getUsage() == GSSCredential.INITIATE_ONLY) { |
| 1085 | initiate = true; |
| 1086 | } |
| 1087 | GSSCredentialSpi mechCred = (GSSCredentialSpi) |
| 1088 | delegCred.getElement(internal_mech, initiate); |
| 1089 | SpNegoCredElement cred = new SpNegoCredElement(mechCred); |
| 1090 | return cred.getInternalCred(); |
| 1091 | } else { |
| 1092 | throw new GSSException(GSSException.NO_CONTEXT, -1, |
| 1093 | "getDelegCred called in invalid state!"); |
| 1094 | } |
| 1095 | } |
| 1096 | |
| 1097 | public final int getWrapSizeLimit(int qop, boolean confReq, |
| 1098 | int maxTokSize) throws GSSException { |
| 1099 | if (mechContext != null) { |
| 1100 | return mechContext.getWrapSizeLimit(qop, confReq, maxTokSize); |
| 1101 | } else { |
| 1102 | throw new GSSException(GSSException.NO_CONTEXT, -1, |
| 1103 | "getWrapSizeLimit called in invalid state!"); |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | public final byte[] wrap(byte inBuf[], int offset, int len, |
| 1108 | MessageProp msgProp) throws GSSException { |
| 1109 | if (mechContext != null) { |
| 1110 | return mechContext.wrap(inBuf, offset, len, msgProp); |
| 1111 | } else { |
| 1112 | throw new GSSException(GSSException.NO_CONTEXT, -1, |
| 1113 | "Wrap called in invalid state!"); |
| 1114 | } |
| 1115 | } |
| 1116 | |
| 1117 | public final void wrap(InputStream is, OutputStream os, |
| 1118 | MessageProp msgProp) throws GSSException { |
| 1119 | if (mechContext != null) { |
| 1120 | mechContext.wrap(is, os, msgProp); |
| 1121 | } else { |
| 1122 | throw new GSSException(GSSException.NO_CONTEXT, -1, |
| 1123 | "Wrap called in invalid state!"); |
| 1124 | } |
| 1125 | } |
| 1126 | |
| 1127 | public final byte[] unwrap(byte inBuf[], int offset, int len, |
| 1128 | MessageProp msgProp) |
| 1129 | throws GSSException { |
| 1130 | if (mechContext != null) { |
| 1131 | return mechContext.unwrap(inBuf, offset, len, msgProp); |
| 1132 | } else { |
| 1133 | throw new GSSException(GSSException.NO_CONTEXT, -1, |
| 1134 | "UnWrap called in invalid state!"); |
| 1135 | } |
| 1136 | } |
| 1137 | |
| 1138 | public final void unwrap(InputStream is, OutputStream os, |
| 1139 | MessageProp msgProp) throws GSSException { |
| 1140 | if (mechContext != null) { |
| 1141 | mechContext.unwrap(is, os, msgProp); |
| 1142 | } else { |
| 1143 | throw new GSSException(GSSException.NO_CONTEXT, -1, |
| 1144 | "UnWrap called in invalid state!"); |
| 1145 | } |
| 1146 | } |
| 1147 | |
| 1148 | public final byte[] getMIC(byte []inMsg, int offset, int len, |
| 1149 | MessageProp msgProp) |
| 1150 | throws GSSException { |
| 1151 | if (mechContext != null) { |
| 1152 | return mechContext.getMIC(inMsg, offset, len, msgProp); |
| 1153 | } else { |
| 1154 | throw new GSSException(GSSException.NO_CONTEXT, -1, |
| 1155 | "getMIC called in invalid state!"); |
| 1156 | } |
| 1157 | } |
| 1158 | |
| 1159 | public final void getMIC(InputStream is, OutputStream os, |
| 1160 | MessageProp msgProp) throws GSSException { |
| 1161 | if (mechContext != null) { |
| 1162 | mechContext.getMIC(is, os, msgProp); |
| 1163 | } else { |
| 1164 | throw new GSSException(GSSException.NO_CONTEXT, -1, |
| 1165 | "getMIC called in invalid state!"); |
| 1166 | } |
| 1167 | } |
| 1168 | |
| 1169 | public final void verifyMIC(byte []inTok, int tokOffset, int tokLen, |
| 1170 | byte[] inMsg, int msgOffset, int msgLen, |
| 1171 | MessageProp msgProp) |
| 1172 | throws GSSException { |
| 1173 | if (mechContext != null) { |
| 1174 | mechContext.verifyMIC(inTok, tokOffset, tokLen, inMsg, msgOffset, |
| 1175 | msgLen, msgProp); |
| 1176 | } else { |
| 1177 | throw new GSSException(GSSException.NO_CONTEXT, -1, |
| 1178 | "verifyMIC called in invalid state!"); |
| 1179 | } |
| 1180 | } |
| 1181 | |
| 1182 | public final void verifyMIC(InputStream is, InputStream msgStr, |
| 1183 | MessageProp msgProp) throws GSSException { |
| 1184 | if (mechContext != null) { |
| 1185 | mechContext.verifyMIC(is, msgStr, msgProp); |
| 1186 | } else { |
| 1187 | throw new GSSException(GSSException.NO_CONTEXT, -1, |
| 1188 | "verifyMIC called in invalid state!"); |
| 1189 | } |
| 1190 | } |
| 1191 | |
| 1192 | private static String printState(int state) { |
| 1193 | switch (state) { |
| 1194 | case STATE_NEW: |
| 1195 | return ("STATE_NEW"); |
| 1196 | case STATE_IN_PROCESS: |
| 1197 | return ("STATE_IN_PROCESS"); |
| 1198 | case STATE_DONE: |
| 1199 | return ("STATE_DONE"); |
| 1200 | case STATE_DELETED: |
| 1201 | return ("STATE_DELETED"); |
| 1202 | default: |
| 1203 | return ("Unknown state " + state); |
| 1204 | } |
| 1205 | } |
| 1206 | } |