2 * Copyright (c) 2011, JANET(UK)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
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.
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.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * Establish a security context on the initiator (client). These functions
38 #include "gssapiP_eap.h"
41 policyVariableToFlag(enum eapol_bool_var variable)
46 case EAPOL_eapSuccess:
47 flag = CTX_FLAG_EAP_SUCCESS;
49 case EAPOL_eapRestart:
50 flag = CTX_FLAG_EAP_RESTART;
53 flag = CTX_FLAG_EAP_FAIL;
56 flag = CTX_FLAG_EAP_RESP;
59 flag = CTX_FLAG_EAP_NO_RESP;
62 flag = CTX_FLAG_EAP_REQ;
64 case EAPOL_portEnabled:
65 flag = CTX_FLAG_EAP_PORT_ENABLED;
68 flag = CTX_FLAG_EAP_ALT_ACCEPT;
71 flag = CTX_FLAG_EAP_ALT_REJECT;
78 static struct eap_peer_config *
79 peerGetConfig(void *ctx)
81 gss_ctx_id_t gssCtx = (gss_ctx_id_t)ctx;
83 return &gssCtx->initiatorCtx.eapPeerConfig;
87 peerGetBool(void *data, enum eapol_bool_var variable)
89 gss_ctx_id_t ctx = data;
92 if (ctx == GSS_C_NO_CONTEXT)
95 flag = policyVariableToFlag(variable);
97 return ((ctx->flags & flag) != 0);
101 peerSetBool(void *data, enum eapol_bool_var variable,
104 gss_ctx_id_t ctx = data;
107 if (ctx == GSS_C_NO_CONTEXT)
110 flag = policyVariableToFlag(variable);
115 ctx->flags &= ~(flag);
119 peerGetInt(void *data, enum eapol_int_var variable)
121 gss_ctx_id_t ctx = data;
123 if (ctx == GSS_C_NO_CONTEXT)
126 GSSEAP_ASSERT(CTX_IS_INITIATOR(ctx));
129 case EAPOL_idleWhile:
130 return ctx->initiatorCtx.idleWhile;
138 peerSetInt(void *data, enum eapol_int_var variable,
141 gss_ctx_id_t ctx = data;
143 if (ctx == GSS_C_NO_CONTEXT)
146 GSSEAP_ASSERT(CTX_IS_INITIATOR(ctx));
149 case EAPOL_idleWhile:
150 ctx->initiatorCtx.idleWhile = value;
155 static struct wpabuf *
156 peerGetEapReqData(void *ctx)
158 gss_ctx_id_t gssCtx = (gss_ctx_id_t)ctx;
160 return &gssCtx->initiatorCtx.reqData;
164 peerSetConfigBlob(void *ctx GSSEAP_UNUSED,
165 struct wpa_config_blob *blob GSSEAP_UNUSED)
169 static const struct wpa_config_blob *
170 peerGetConfigBlob(void *ctx GSSEAP_UNUSED,
171 const char *name GSSEAP_UNUSED)
177 peerNotifyPending(void *ctx GSSEAP_UNUSED)
181 static struct eapol_callbacks gssEapPolicyCallbacks = {
194 extern int wpa_debug_level;
198 peerConfigInit(OM_uint32 *minor, gss_ctx_id_t ctx)
201 krb5_context krbContext;
202 struct eap_peer_config *eapPeerConfig = &ctx->initiatorCtx.eapPeerConfig;
203 gss_buffer_desc identity = GSS_C_EMPTY_BUFFER;
204 gss_buffer_desc realm = GSS_C_EMPTY_BUFFER;
205 gss_cred_id_t cred = ctx->cred;
207 eapPeerConfig->identity = NULL;
208 eapPeerConfig->identity_len = 0;
209 eapPeerConfig->anonymous_identity = NULL;
210 eapPeerConfig->anonymous_identity_len = 0;
211 eapPeerConfig->password = NULL;
212 eapPeerConfig->password_len = 0;
214 GSSEAP_ASSERT(cred != GSS_C_NO_CREDENTIAL);
216 GSSEAP_KRB_INIT(&krbContext);
218 eapPeerConfig->fragment_size = 1024;
223 GSSEAP_ASSERT(cred->name != GSS_C_NO_NAME);
225 if ((cred->name->flags & (NAME_FLAG_NAI | NAME_FLAG_SERVICE)) == 0) {
226 *minor = GSSEAP_BAD_INITIATOR_NAME;
227 return GSS_S_BAD_NAME;
231 major = gssEapDisplayName(minor, cred->name, &identity, NULL);
232 if (GSS_ERROR(major))
235 eapPeerConfig->identity = (unsigned char *)identity.value;
236 eapPeerConfig->identity_len = identity.length;
238 krbPrincRealmToGssBuffer(cred->name->krbPrincipal, &realm);
240 /* anonymous_identity */
241 eapPeerConfig->anonymous_identity = GSSEAP_MALLOC(realm.length + 2);
242 if (eapPeerConfig->anonymous_identity == NULL) {
244 return GSS_S_FAILURE;
247 eapPeerConfig->anonymous_identity[0] = '@';
248 memcpy(eapPeerConfig->anonymous_identity + 1, realm.value, realm.length);
249 eapPeerConfig->anonymous_identity[1 + realm.length] = '\0';
250 eapPeerConfig->anonymous_identity_len = 1 + realm.length;
253 eapPeerConfig->password = (unsigned char *)cred->password.value;
254 eapPeerConfig->password_len = cred->password.length;
257 eapPeerConfig->ca_cert = (unsigned char *)cred->caCertificate.value;
258 eapPeerConfig->subject_match = (unsigned char *)cred->subjectNameConstraint.value;
259 eapPeerConfig->altsubject_match = (unsigned char *)cred->subjectAltNameConstraint.value;
262 return GSS_S_COMPLETE;
266 peerConfigFree(OM_uint32 *minor,
269 struct eap_peer_config *eapPeerConfig = &ctx->initiatorCtx.eapPeerConfig;
271 if (eapPeerConfig->identity != NULL) {
272 GSSEAP_FREE(eapPeerConfig->identity);
273 eapPeerConfig->identity = NULL;
274 eapPeerConfig->identity_len = 0;
277 if (eapPeerConfig->anonymous_identity != NULL) {
278 GSSEAP_FREE(eapPeerConfig->anonymous_identity);
279 eapPeerConfig->anonymous_identity = NULL;
280 eapPeerConfig->anonymous_identity_len = 0;
284 return GSS_S_COMPLETE;
288 * Mark an initiator context as ready for cryptographic operations
291 initReady(OM_uint32 *minor, gss_ctx_id_t ctx, OM_uint32 reqFlags)
294 const unsigned char *key;
298 /* XXX actually check for mutual auth */
299 if (reqFlags & GSS_C_MUTUAL_FLAG)
300 ctx->gssFlags |= GSS_C_MUTUAL_FLAG;
303 /* Cache encryption type derived from selected mechanism OID */
304 major = gssEapOidToEnctype(minor, ctx->mechanismUsed, &ctx->encryptionType);
305 if (GSS_ERROR(major))
308 if (!eap_key_available(ctx->initiatorCtx.eap)) {
309 *minor = GSSEAP_KEY_UNAVAILABLE;
310 return GSS_S_UNAVAILABLE;
313 key = eap_get_eapKeyData(ctx->initiatorCtx.eap, &keyLength);
315 if (keyLength < EAP_EMSK_LEN) {
316 *minor = GSSEAP_KEY_TOO_SHORT;
317 return GSS_S_UNAVAILABLE;
320 major = gssEapDeriveRfc3961Key(minor,
321 &key[EAP_EMSK_LEN / 2],
325 if (GSS_ERROR(major))
328 major = rfc3961ChecksumTypeForKey(minor, &ctx->rfc3961Key,
330 if (GSS_ERROR(major))
333 major = sequenceInit(minor,
336 ((ctx->gssFlags & GSS_C_REPLAY_FLAG) != 0),
337 ((ctx->gssFlags & GSS_C_SEQUENCE_FLAG) != 0),
339 if (GSS_ERROR(major))
343 return GSS_S_COMPLETE;
347 initBegin(OM_uint32 *minor,
351 OM_uint32 reqFlags GSSEAP_UNUSED,
353 gss_channel_bindings_t chanBindings GSSEAP_UNUSED)
356 gss_cred_id_t cred = ctx->cred;
358 GSSEAP_ASSERT(cred != GSS_C_NO_CREDENTIAL);
360 if (cred->expiryTime)
361 ctx->expiryTime = cred->expiryTime;
362 else if (timeReq == 0 || timeReq == GSS_C_INDEFINITE)
365 ctx->expiryTime = time(NULL) + timeReq;
368 * The credential mutex protects its name, however we need to
369 * explicitly lock the acceptor name (unlikely as it may be
370 * that it has attributes set on it).
372 major = gssEapDuplicateName(minor, cred->name, &ctx->initiatorName);
373 if (GSS_ERROR(major))
376 if (target != GSS_C_NO_NAME) {
377 GSSEAP_MUTEX_LOCK(&target->mutex);
379 major = gssEapDuplicateName(minor, target, &ctx->acceptorName);
380 if (GSS_ERROR(major)) {
381 GSSEAP_MUTEX_UNLOCK(&target->mutex);
385 GSSEAP_MUTEX_UNLOCK(&target->mutex);
388 major = gssEapCanonicalizeOid(minor,
390 OID_FLAG_NULL_VALID | OID_FLAG_MAP_NULL_TO_DEFAULT_MECH,
391 &ctx->mechanismUsed);
392 if (GSS_ERROR(major))
395 /* If credentials were provided, check they're usable with this mech */
396 if (!gssEapCredAvailable(cred, ctx->mechanismUsed)) {
397 *minor = GSSEAP_CRED_MECH_MISMATCH;
398 return GSS_S_BAD_MECH;
402 return GSS_S_COMPLETE;
406 eapGssSmInitError(OM_uint32 *minor,
407 gss_cred_id_t cred GSSEAP_UNUSED,
408 gss_ctx_id_t ctx GSSEAP_UNUSED,
409 gss_name_t target GSSEAP_UNUSED,
410 gss_OID mech GSSEAP_UNUSED,
411 OM_uint32 reqFlags GSSEAP_UNUSED,
412 OM_uint32 timeReq GSSEAP_UNUSED,
413 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
414 gss_buffer_t inputToken,
415 gss_buffer_t outputToken GSSEAP_UNUSED,
416 OM_uint32 *smFlags GSSEAP_UNUSED)
421 if (inputToken->length < 8) {
422 *minor = GSSEAP_TOK_TRUNC;
423 return GSS_S_DEFECTIVE_TOKEN;
426 p = (unsigned char *)inputToken->value;
428 major = load_uint32_be(&p[0]);
429 *minor = ERROR_TABLE_BASE_eapg + load_uint32_be(&p[4]);
431 if (!GSS_ERROR(major) || !IS_WIRE_ERROR(*minor)) {
432 major = GSS_S_FAILURE;
433 *minor = GSSEAP_BAD_ERROR_TOKEN;
436 GSSEAP_ASSERT(GSS_ERROR(major));
441 #ifdef GSSEAP_ENABLE_REAUTH
443 eapGssSmInitGssReauth(OM_uint32 *minor,
447 gss_OID mech GSSEAP_UNUSED,
450 gss_channel_bindings_t chanBindings,
451 gss_buffer_t inputToken,
452 gss_buffer_t outputToken,
453 OM_uint32 *smFlags GSSEAP_UNUSED)
455 OM_uint32 major, tmpMinor;
456 gss_name_t mechTarget = GSS_C_NO_NAME;
457 gss_OID actualMech = GSS_C_NO_OID;
458 OM_uint32 gssFlags, timeRec;
461 * Here we use the passed in credential handle because the resolved
462 * context credential does not currently have the reauth creds.
464 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_INITIAL) {
465 if (!gssEapCanReauthP(cred, target, timeReq))
466 return GSS_S_CONTINUE_NEEDED;
468 ctx->flags |= CTX_FLAG_KRB_REAUTH;
469 } else if ((ctx->flags & CTX_FLAG_KRB_REAUTH) == 0) {
470 major = GSS_S_DEFECTIVE_TOKEN;
471 *minor = GSSEAP_WRONG_ITOK;
475 GSSEAP_ASSERT(cred != GSS_C_NO_CREDENTIAL);
477 major = gssEapMechToGlueName(minor, target, &mechTarget);
478 if (GSS_ERROR(major))
481 major = gssInitSecContext(minor,
485 (gss_OID)gss_mech_krb5,
486 reqFlags | GSS_C_MUTUAL_FLAG,
494 if (GSS_ERROR(major))
497 ctx->gssFlags = gssFlags;
499 if (major == GSS_S_COMPLETE) {
500 GSSEAP_ASSERT(GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_REAUTHENTICATE);
502 major = gssEapReauthComplete(minor, ctx, cred, actualMech, timeRec);
503 if (GSS_ERROR(major))
505 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_ESTABLISHED);
507 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_REAUTHENTICATE);
511 gssReleaseName(&tmpMinor, &mechTarget);
515 #endif /* GSSEAP_ENABLE_REAUTH */
519 eapGssSmInitVendorInfo(OM_uint32 *minor,
520 gss_cred_id_t cred GSSEAP_UNUSED,
521 gss_ctx_id_t ctx GSSEAP_UNUSED,
522 gss_name_t target GSSEAP_UNUSED,
523 gss_OID mech GSSEAP_UNUSED,
524 OM_uint32 reqFlags GSSEAP_UNUSED,
525 OM_uint32 timeReq GSSEAP_UNUSED,
526 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
527 gss_buffer_t inputToken GSSEAP_UNUSED,
528 gss_buffer_t outputToken,
529 OM_uint32 *smFlags GSSEAP_UNUSED)
533 major = makeStringBuffer(minor, "JANET(UK)", outputToken);
534 if (GSS_ERROR(major))
537 return GSS_S_CONTINUE_NEEDED;
542 eapGssSmInitAcceptorName(OM_uint32 *minor,
543 gss_cred_id_t cred GSSEAP_UNUSED,
545 gss_name_t target GSSEAP_UNUSED,
546 gss_OID mech GSSEAP_UNUSED,
547 OM_uint32 reqFlags GSSEAP_UNUSED,
548 OM_uint32 timeReq GSSEAP_UNUSED,
549 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
550 gss_buffer_t inputToken GSSEAP_UNUSED,
551 gss_buffer_t outputToken,
552 OM_uint32 *smFlags GSSEAP_UNUSED)
556 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_INITIAL &&
557 ctx->acceptorName != GSS_C_NO_NAME) {
559 /* Send desired target name to acceptor */
560 major = gssEapDisplayName(minor, ctx->acceptorName,
562 if (GSS_ERROR(major))
564 } else if (inputToken != GSS_C_NO_BUFFER &&
565 ctx->acceptorName == GSS_C_NO_NAME) {
566 /* Accept target name hint from acceptor */
567 major = gssEapImportName(minor, inputToken,
571 if (GSS_ERROR(major))
576 * Currently, other parts of the code assume that the acceptor name
577 * is available, hence this check.
579 if (ctx->acceptorName == GSS_C_NO_NAME) {
580 *minor = GSSEAP_NO_ACCEPTOR_NAME;
581 return GSS_S_FAILURE;
584 return GSS_S_CONTINUE_NEEDED;
588 eapGssSmInitIdentity(OM_uint32 *minor,
589 gss_cred_id_t cred GSSEAP_UNUSED,
591 gss_name_t target GSSEAP_UNUSED,
592 gss_OID mech GSSEAP_UNUSED,
593 OM_uint32 reqFlags GSSEAP_UNUSED,
594 OM_uint32 timeReq GSSEAP_UNUSED,
595 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
596 gss_buffer_t inputToken GSSEAP_UNUSED,
597 gss_buffer_t outputToken GSSEAP_UNUSED,
600 struct eap_config eapConfig;
602 #ifdef GSSEAP_ENABLE_REAUTH
603 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_REAUTHENTICATE) {
606 /* server didn't support reauthentication, sent EAP request */
607 gssDeleteSecContext(&tmpMinor, &ctx->reauthCtx, GSS_C_NO_BUFFER);
608 ctx->flags &= ~(CTX_FLAG_KRB_REAUTH);
609 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_INITIAL);
612 *smFlags |= SM_FLAG_FORCE_SEND_TOKEN;
614 GSSEAP_ASSERT((ctx->flags & CTX_FLAG_KRB_REAUTH) == 0);
615 GSSEAP_ASSERT(inputToken == GSS_C_NO_BUFFER);
617 memset(&eapConfig, 0, sizeof(eapConfig));
619 ctx->initiatorCtx.eap = eap_peer_sm_init(ctx,
620 &gssEapPolicyCallbacks,
623 if (ctx->initiatorCtx.eap == NULL) {
624 *minor = GSSEAP_PEER_SM_INIT_FAILURE;
625 return GSS_S_FAILURE;
628 ctx->flags |= CTX_FLAG_EAP_RESTART | CTX_FLAG_EAP_PORT_ENABLED;
630 /* poke EAP state machine */
631 if (eap_peer_sm_step(ctx->initiatorCtx.eap) != 0) {
632 *minor = GSSEAP_PEER_SM_STEP_FAILURE;
633 return GSS_S_FAILURE;
636 GSSEAP_SM_TRANSITION_NEXT(ctx);
640 return GSS_S_CONTINUE_NEEDED;
644 eapGssSmInitAuthenticate(OM_uint32 *minor,
645 gss_cred_id_t cred GSSEAP_UNUSED,
647 gss_name_t target GSSEAP_UNUSED,
648 gss_OID mech GSSEAP_UNUSED,
649 OM_uint32 reqFlags GSSEAP_UNUSED,
650 OM_uint32 timeReq GSSEAP_UNUSED,
651 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
652 gss_buffer_t inputToken GSSEAP_UNUSED,
653 gss_buffer_t outputToken,
658 struct wpabuf *resp = NULL;
662 GSSEAP_ASSERT(inputToken != GSS_C_NO_BUFFER);
664 major = peerConfigInit(minor, ctx);
665 if (GSS_ERROR(major))
668 GSSEAP_ASSERT(ctx->initiatorCtx.eap != NULL);
669 GSSEAP_ASSERT(ctx->flags & CTX_FLAG_EAP_PORT_ENABLED);
671 ctx->flags |= CTX_FLAG_EAP_REQ; /* we have a Request from the acceptor */
673 wpabuf_set(&ctx->initiatorCtx.reqData,
674 inputToken->value, inputToken->length);
676 major = GSS_S_CONTINUE_NEEDED;
678 eap_peer_sm_step(ctx->initiatorCtx.eap);
679 if (ctx->flags & CTX_FLAG_EAP_RESP) {
680 ctx->flags &= ~(CTX_FLAG_EAP_RESP);
682 resp = eap_get_eapRespData(ctx->initiatorCtx.eap);
683 } else if (ctx->flags & CTX_FLAG_EAP_SUCCESS) {
684 major = initReady(minor, ctx, reqFlags);
685 if (GSS_ERROR(major))
688 ctx->flags &= ~(CTX_FLAG_EAP_SUCCESS);
689 major = GSS_S_CONTINUE_NEEDED;
690 GSSEAP_SM_TRANSITION_NEXT(ctx);
691 } else if (ctx->flags & CTX_FLAG_EAP_FAIL) {
692 major = GSS_S_DEFECTIVE_CREDENTIAL;
693 *minor = GSSEAP_PEER_AUTH_FAILURE;
695 major = GSS_S_DEFECTIVE_TOKEN;
696 *minor = GSSEAP_PEER_BAD_MESSAGE;
702 gss_buffer_desc respBuf;
704 GSSEAP_ASSERT(major == GSS_S_CONTINUE_NEEDED);
706 respBuf.length = wpabuf_len(resp);
707 respBuf.value = (void *)wpabuf_head(resp);
709 tmpMajor = duplicateBuffer(&tmpMinor, &respBuf, outputToken);
710 if (GSS_ERROR(tmpMajor)) {
715 *smFlags |= SM_FLAG_OUTPUT_TOKEN_CRITICAL;
718 wpabuf_set(&ctx->initiatorCtx.reqData, NULL, 0);
719 peerConfigFree(&tmpMinor, ctx);
725 eapGssSmInitGssFlags(OM_uint32 *minor,
726 gss_cred_id_t cred GSSEAP_UNUSED,
728 gss_name_t target GSSEAP_UNUSED,
729 gss_OID mech GSSEAP_UNUSED,
730 OM_uint32 reqFlags GSSEAP_UNUSED,
731 OM_uint32 timeReq GSSEAP_UNUSED,
732 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
733 gss_buffer_t inputToken GSSEAP_UNUSED,
734 gss_buffer_t outputToken,
735 OM_uint32 *smFlags GSSEAP_UNUSED)
737 unsigned char wireFlags[4];
738 gss_buffer_desc flagsBuf;
740 store_uint32_be(ctx->gssFlags & GSSEAP_WIRE_FLAGS_MASK, wireFlags);
742 flagsBuf.length = sizeof(wireFlags);
743 flagsBuf.value = wireFlags;
745 return duplicateBuffer(minor, &flagsBuf, outputToken);
749 eapGssSmInitGssChannelBindings(OM_uint32 *minor,
750 gss_cred_id_t cred GSSEAP_UNUSED,
752 gss_name_t target GSSEAP_UNUSED,
753 gss_OID mech GSSEAP_UNUSED,
754 OM_uint32 reqFlags GSSEAP_UNUSED,
755 OM_uint32 timeReq GSSEAP_UNUSED,
756 gss_channel_bindings_t chanBindings,
757 gss_buffer_t inputToken GSSEAP_UNUSED,
758 gss_buffer_t outputToken,
762 gss_buffer_desc buffer = GSS_C_EMPTY_BUFFER;
764 if (chanBindings != GSS_C_NO_CHANNEL_BINDINGS)
765 buffer = chanBindings->application_data;
767 major = gssEapWrap(minor, ctx, TRUE, GSS_C_QOP_DEFAULT,
768 &buffer, NULL, outputToken);
769 if (GSS_ERROR(major))
772 GSSEAP_ASSERT(outputToken->value != NULL);
775 *smFlags |= SM_FLAG_OUTPUT_TOKEN_CRITICAL;
777 return GSS_S_CONTINUE_NEEDED;
781 eapGssSmInitInitiatorMIC(OM_uint32 *minor,
782 gss_cred_id_t cred GSSEAP_UNUSED,
784 gss_name_t target GSSEAP_UNUSED,
785 gss_OID mech GSSEAP_UNUSED,
786 OM_uint32 reqFlags GSSEAP_UNUSED,
787 OM_uint32 timeReq GSSEAP_UNUSED,
788 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
789 gss_buffer_t inputToken GSSEAP_UNUSED,
790 gss_buffer_t outputToken,
795 major = gssEapMakeTokenMIC(minor, ctx, outputToken);
796 if (GSS_ERROR(major))
799 GSSEAP_SM_TRANSITION_NEXT(ctx);
802 *smFlags |= SM_FLAG_OUTPUT_TOKEN_CRITICAL;
804 return GSS_S_CONTINUE_NEEDED;
807 #ifdef GSSEAP_ENABLE_REAUTH
809 eapGssSmInitReauthCreds(OM_uint32 *minor,
812 gss_name_t target GSSEAP_UNUSED,
813 gss_OID mech GSSEAP_UNUSED,
814 OM_uint32 reqFlags GSSEAP_UNUSED,
815 OM_uint32 timeReq GSSEAP_UNUSED,
816 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
817 gss_buffer_t inputToken,
818 gss_buffer_t outputToken GSSEAP_UNUSED,
819 OM_uint32 *smFlags GSSEAP_UNUSED)
823 if (ctx->gssFlags & GSS_C_MUTUAL_FLAG) {
824 major = gssEapStoreReauthCreds(minor, ctx, cred, inputToken);
825 if (GSS_ERROR(major))
830 return GSS_S_CONTINUE_NEEDED;
832 #endif /* GSSEAP_ENABLE_REAUTH */
835 eapGssSmInitAcceptorMIC(OM_uint32 *minor,
836 gss_cred_id_t cred GSSEAP_UNUSED,
838 gss_name_t target GSSEAP_UNUSED,
839 gss_OID mech GSSEAP_UNUSED,
840 OM_uint32 reqFlags GSSEAP_UNUSED,
841 OM_uint32 timeReq GSSEAP_UNUSED,
842 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
843 gss_buffer_t inputToken,
844 gss_buffer_t outputToken GSSEAP_UNUSED,
845 OM_uint32 *smFlags GSSEAP_UNUSED)
849 major = gssEapVerifyTokenMIC(minor, ctx, inputToken);
850 if (GSS_ERROR(major))
853 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_ESTABLISHED);
857 return GSS_S_COMPLETE;
860 static struct gss_eap_sm eapGssInitiatorSm[] = {
862 ITOK_TYPE_CONTEXT_ERR,
864 GSSEAP_STATE_ALL & ~(GSSEAP_STATE_INITIAL),
869 ITOK_TYPE_ACCEPTOR_NAME_RESP,
870 ITOK_TYPE_ACCEPTOR_NAME_REQ,
871 GSSEAP_STATE_INITIAL | GSSEAP_STATE_AUTHENTICATE,
873 eapGssSmInitAcceptorName
878 ITOK_TYPE_VENDOR_INFO,
879 GSSEAP_STATE_INITIAL,
881 eapGssSmInitVendorInfo
884 #ifdef GSSEAP_ENABLE_REAUTH
886 ITOK_TYPE_REAUTH_RESP,
887 ITOK_TYPE_REAUTH_REQ,
888 GSSEAP_STATE_INITIAL | GSSEAP_STATE_REAUTHENTICATE,
890 eapGssSmInitGssReauth
896 #ifdef GSSEAP_ENABLE_REAUTH
897 GSSEAP_STATE_REAUTHENTICATE |
899 GSSEAP_STATE_INITIAL,
900 SM_ITOK_FLAG_REQUIRED,
906 GSSEAP_STATE_AUTHENTICATE,
907 SM_ITOK_FLAG_REQUIRED,
908 eapGssSmInitAuthenticate
913 GSSEAP_STATE_INITIATOR_EXTS,
919 ITOK_TYPE_GSS_CHANNEL_BINDINGS,
920 GSSEAP_STATE_INITIATOR_EXTS,
921 SM_ITOK_FLAG_REQUIRED,
922 eapGssSmInitGssChannelBindings
926 ITOK_TYPE_INITIATOR_MIC,
927 GSSEAP_STATE_INITIATOR_EXTS,
928 SM_ITOK_FLAG_REQUIRED,
929 eapGssSmInitInitiatorMIC
931 #ifdef GSSEAP_ENABLE_REAUTH
933 ITOK_TYPE_REAUTH_CREDS,
935 GSSEAP_STATE_ACCEPTOR_EXTS,
937 eapGssSmInitReauthCreds
940 /* other extensions go here */
942 ITOK_TYPE_ACCEPTOR_MIC,
944 GSSEAP_STATE_ACCEPTOR_EXTS,
945 SM_ITOK_FLAG_REQUIRED,
946 eapGssSmInitAcceptorMIC
951 gssEapInitSecContext(OM_uint32 *minor,
954 gss_name_t target_name,
958 gss_channel_bindings_t input_chan_bindings,
959 gss_buffer_t input_token,
960 gss_OID *actual_mech_type,
961 gss_buffer_t output_token,
962 OM_uint32 *ret_flags,
965 OM_uint32 major, tmpMinor;
966 int initialContextToken = (ctx->mechanismUsed == GSS_C_NO_OID);
969 * XXX is acquiring the credential lock here necessary? The password is
970 * mutable but the contract could specify that this is not updated whilst
971 * a context is being initialized.
973 if (cred != GSS_C_NO_CREDENTIAL)
974 GSSEAP_MUTEX_LOCK(&cred->mutex);
976 if (ctx->cred == GSS_C_NO_CREDENTIAL) {
977 major = gssEapResolveInitiatorCred(minor, cred, target_name, &ctx->cred);
978 if (GSS_ERROR(major))
981 GSSEAP_ASSERT(ctx->cred != GSS_C_NO_CREDENTIAL);
984 GSSEAP_MUTEX_LOCK(&ctx->cred->mutex);
986 GSSEAP_ASSERT(ctx->cred->flags & CRED_FLAG_RESOLVED);
987 GSSEAP_ASSERT(ctx->cred->flags & CRED_FLAG_INITIATE);
989 if (initialContextToken) {
990 major = initBegin(minor, ctx, target_name, mech_type,
991 req_flags, time_req, input_chan_bindings);
992 if (GSS_ERROR(major))
996 major = gssEapSmStep(minor,
1003 input_chan_bindings,
1007 sizeof(eapGssInitiatorSm) / sizeof(eapGssInitiatorSm[0]));
1008 if (GSS_ERROR(major))
1011 if (actual_mech_type != NULL) {
1014 tmpMajor = gssEapCanonicalizeOid(&tmpMinor, ctx->mechanismUsed, 0, actual_mech_type);
1015 if (GSS_ERROR(tmpMajor)) {
1021 if (ret_flags != NULL)
1022 *ret_flags = ctx->gssFlags;
1023 if (time_rec != NULL)
1024 gssEapContextTime(&tmpMinor, ctx, time_rec);
1026 GSSEAP_ASSERT(CTX_IS_ESTABLISHED(ctx) || major == GSS_S_CONTINUE_NEEDED);
1029 if (cred != GSS_C_NO_CREDENTIAL)
1030 GSSEAP_MUTEX_UNLOCK(&cred->mutex);
1031 if (ctx->cred != GSS_C_NO_CREDENTIAL)
1032 GSSEAP_MUTEX_UNLOCK(&ctx->cred->mutex);
1037 OM_uint32 GSSAPI_CALLCONV
1038 gss_init_sec_context(OM_uint32 *minor,
1040 gss_ctx_id_t *context_handle,
1041 gss_name_t target_name,
1043 OM_uint32 req_flags,
1045 gss_channel_bindings_t input_chan_bindings,
1046 gss_buffer_t input_token,
1047 gss_OID *actual_mech_type,
1048 gss_buffer_t output_token,
1049 OM_uint32 *ret_flags,
1050 OM_uint32 *time_rec)
1052 OM_uint32 major, tmpMinor;
1053 gss_ctx_id_t ctx = *context_handle;
1057 output_token->length = 0;
1058 output_token->value = NULL;
1060 if (ctx == GSS_C_NO_CONTEXT) {
1061 if (input_token != GSS_C_NO_BUFFER && input_token->length != 0) {
1062 *minor = GSSEAP_WRONG_SIZE;
1063 return GSS_S_DEFECTIVE_TOKEN;
1066 major = gssEapAllocContext(minor, &ctx);
1067 if (GSS_ERROR(major))
1070 ctx->flags |= CTX_FLAG_INITIATOR;
1072 *context_handle = ctx;
1075 GSSEAP_MUTEX_LOCK(&ctx->mutex);
1077 major = gssEapInitSecContext(minor,
1084 input_chan_bindings,
1091 GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
1093 if (GSS_ERROR(major))
1094 gssEapReleaseContext(&tmpMinor, context_handle);