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 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 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,
203 krb5_context krbContext;
204 struct eap_peer_config *eapPeerConfig = &ctx->initiatorCtx.eapPeerConfig;
205 gss_buffer_desc identity = GSS_C_EMPTY_BUFFER;
206 gss_buffer_desc realm = GSS_C_EMPTY_BUFFER;
208 eapPeerConfig->identity = NULL;
209 eapPeerConfig->identity_len = 0;
210 eapPeerConfig->anonymous_identity = NULL;
211 eapPeerConfig->anonymous_identity_len = 0;
212 eapPeerConfig->password = NULL;
213 eapPeerConfig->password_len = 0;
215 assert(cred != GSS_C_NO_CREDENTIAL);
217 GSSEAP_KRB_INIT(&krbContext);
219 eapPeerConfig->fragment_size = 1024;
224 assert(cred->name != GSS_C_NO_NAME);
227 * draft-ietf-abfab-gss-eap-01: the host portion is empty
230 if ((cred->name->flags & NAME_FLAG_NAI) == 0) {
231 *minor = GSSEAP_BAD_INITIATOR_NAME;
232 return GSS_S_BAD_NAME;
236 major = gssEapDisplayName(minor, cred->name, &identity, NULL);
237 if (GSS_ERROR(major))
240 eapPeerConfig->identity = (unsigned char *)identity.value;
241 eapPeerConfig->identity_len = identity.length;
243 krbPrincRealmToGssBuffer(cred->name->krbPrincipal, &realm);
245 /* anonymous_identity */
246 eapPeerConfig->anonymous_identity = GSSEAP_MALLOC(realm.length + 2);
247 if (eapPeerConfig->anonymous_identity == NULL) {
249 return GSS_S_FAILURE;
252 eapPeerConfig->anonymous_identity[0] = '@';
253 memcpy(eapPeerConfig->anonymous_identity + 1, realm.value, realm.length);
254 eapPeerConfig->anonymous_identity[1 + realm.length] = '\0';
255 eapPeerConfig->anonymous_identity_len = 1 + realm.length;
258 eapPeerConfig->password = (unsigned char *)cred->password.value;
259 eapPeerConfig->password_len = cred->password.length;
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,
352 OM_uint32 reqFlags GSSEAP_UNUSED,
354 gss_channel_bindings_t chanBindings GSSEAP_UNUSED)
358 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 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 userChanBindings,
451 gss_buffer_t inputToken,
452 gss_buffer_t outputToken,
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;
459 struct gss_channel_bindings_struct wireChanBindings = { 0 };
461 assert(cred != GSS_C_NO_CREDENTIAL);
463 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_INITIAL) {
464 if (!gssEapCanReauthP(cred, target, timeReq)) {
465 major = GSS_S_CONTINUE_NEEDED;
469 major = gssEapMakeTokenChannelBindings(minor, ctx,
473 if (GSS_ERROR(major))
476 ctx->flags |= CTX_FLAG_KRB_REAUTH;
477 } else if ((ctx->flags & CTX_FLAG_KRB_REAUTH) == 0) {
478 major = GSS_S_DEFECTIVE_TOKEN;
479 *minor = GSSEAP_WRONG_ITOK;
483 major = gssEapMechToGlueName(minor, target, &mechTarget);
484 if (GSS_ERROR(major))
487 major = gssInitSecContext(minor,
491 (gss_OID)gss_mech_krb5,
492 reqFlags | GSS_C_MUTUAL_FLAG,
500 if (GSS_ERROR(major))
503 ctx->gssFlags = gssFlags;
505 if (major == GSS_S_COMPLETE) {
506 assert(GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_REAUTHENTICATE);
508 major = gssEapReauthComplete(minor, ctx, cred, actualMech, timeRec);
509 if (GSS_ERROR(major))
512 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_ACCEPTOR_EXTS);
514 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_REAUTHENTICATE);
515 *smFlags |= SM_FLAG_SEND_TOKEN;
518 major = GSS_S_CONTINUE_NEEDED;
521 gssReleaseName(&tmpMinor, &mechTarget);
522 gss_release_buffer(&tmpMinor, &wireChanBindings.application_data);
526 #endif /* GSSEAP_ENABLE_REAUTH */
530 eapGssSmInitVendorInfo(OM_uint32 *minor,
531 gss_cred_id_t cred GSSEAP_UNUSED,
532 gss_ctx_id_t ctx GSSEAP_UNUSED,
533 gss_name_t target GSSEAP_UNUSED,
534 gss_OID mech GSSEAP_UNUSED,
535 OM_uint32 reqFlags GSSEAP_UNUSED,
536 OM_uint32 timeReq GSSEAP_UNUSED,
537 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
538 gss_buffer_t inputToken GSSEAP_UNUSED,
539 gss_buffer_t outputToken,
540 OM_uint32 *smFlags GSSEAP_UNUSED)
544 major = makeStringBuffer(minor, "JANET(UK)", outputToken);
545 if (GSS_ERROR(major))
548 return GSS_S_CONTINUE_NEEDED;
553 eapGssSmInitAcceptorName(OM_uint32 *minor,
554 gss_cred_id_t cred GSSEAP_UNUSED,
556 gss_name_t target GSSEAP_UNUSED,
557 gss_OID mech GSSEAP_UNUSED,
558 OM_uint32 reqFlags GSSEAP_UNUSED,
559 OM_uint32 timeReq GSSEAP_UNUSED,
560 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
561 gss_buffer_t inputToken GSSEAP_UNUSED,
562 gss_buffer_t outputToken,
563 OM_uint32 *smFlags GSSEAP_UNUSED)
567 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_INITIAL &&
568 ctx->acceptorName != GSS_C_NO_NAME) {
570 /* Send desired target name to acceptor */
571 major = gssEapDisplayName(minor, ctx->acceptorName,
573 if (GSS_ERROR(major))
575 } else if (inputToken != GSS_C_NO_BUFFER &&
576 ctx->acceptorName == GSS_C_NO_NAME) {
577 /* Accept target name hint from acceptor */
578 major = gssEapImportName(minor, inputToken,
582 if (GSS_ERROR(major))
587 * Currently, other parts of the code assume that the acceptor name
588 * is available, hence this check.
590 if (ctx->acceptorName == GSS_C_NO_NAME) {
591 *minor = GSSEAP_NO_ACCEPTOR_NAME;
592 return GSS_S_FAILURE;
595 return GSS_S_CONTINUE_NEEDED;
599 gssEapSupportedAcceptorExts[] = {
600 ITOK_TYPE_REAUTH_CREDS,
603 static struct gss_eap_itok_map
604 gssEapInitiatorExtsFlagMap[] = {
608 eapGssSmInitExts(OM_uint32 *minor,
609 gss_cred_id_t cred GSSEAP_UNUSED,
610 gss_ctx_id_t ctx GSSEAP_UNUSED,
611 gss_name_t target GSSEAP_UNUSED,
612 gss_OID mech GSSEAP_UNUSED,
613 OM_uint32 reqFlags GSSEAP_UNUSED,
614 OM_uint32 timeReq GSSEAP_UNUSED,
615 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
616 gss_buffer_t inputToken,
617 gss_buffer_t outputToken,
618 OM_uint32 *smFlags GSSEAP_UNUSED)
620 OM_uint32 major = GSS_S_COMPLETE;
622 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_INITIAL) {
623 major = gssEapEncodeSupportedExts(minor,
624 gssEapSupportedAcceptorExts,
625 sizeof(gssEapSupportedAcceptorExts) /
626 sizeof(gssEapSupportedAcceptorExts[0]),
628 } else if (inputToken != GSS_C_NO_BUFFER) {
629 major = gssEapProcessSupportedExts(minor, inputToken,
630 gssEapInitiatorExtsFlagMap,
631 sizeof(gssEapInitiatorExtsFlagMap) /
632 sizeof(gssEapInitiatorExtsFlagMap[0]),
636 if (GSS_ERROR(major))
639 return GSS_S_CONTINUE_NEEDED;
643 eapGssSmInitIdentity(OM_uint32 *minor,
644 gss_cred_id_t cred GSSEAP_UNUSED,
646 gss_name_t target GSSEAP_UNUSED,
647 gss_OID mech GSSEAP_UNUSED,
648 OM_uint32 reqFlags GSSEAP_UNUSED,
649 OM_uint32 timeReq GSSEAP_UNUSED,
650 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
651 gss_buffer_t inputToken GSSEAP_UNUSED,
652 gss_buffer_t outputToken GSSEAP_UNUSED,
655 struct eap_config eapConfig;
657 #ifdef GSSEAP_ENABLE_REAUTH
658 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_REAUTHENTICATE) {
661 /* server didn't support reauthentication, sent EAP request */
662 gssDeleteSecContext(&tmpMinor, &ctx->reauthCtx, GSS_C_NO_BUFFER);
663 ctx->flags &= ~(CTX_FLAG_KRB_REAUTH);
664 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_INITIAL);
667 *smFlags |= SM_FLAG_SEND_TOKEN;
669 assert((ctx->flags & CTX_FLAG_KRB_REAUTH) == 0);
670 assert(inputToken == GSS_C_NO_BUFFER);
672 memset(&eapConfig, 0, sizeof(eapConfig));
674 ctx->initiatorCtx.eap = eap_peer_sm_init(ctx,
675 &gssEapPolicyCallbacks,
678 if (ctx->initiatorCtx.eap == NULL) {
679 *minor = GSSEAP_PEER_SM_INIT_FAILURE;
680 return GSS_S_FAILURE;
683 ctx->flags |= CTX_FLAG_EAP_RESTART | CTX_FLAG_EAP_PORT_ENABLED;
685 /* poke EAP state machine */
686 if (eap_peer_sm_step(ctx->initiatorCtx.eap) != 0) {
687 *minor = GSSEAP_PEER_SM_STEP_FAILURE;
688 return GSS_S_FAILURE;
691 GSSEAP_SM_TRANSITION_NEXT(ctx);
695 return GSS_S_CONTINUE_NEEDED;
699 eapGssSmInitAuthenticate(OM_uint32 *minor,
702 gss_name_t target GSSEAP_UNUSED,
703 gss_OID mech GSSEAP_UNUSED,
704 OM_uint32 reqFlags GSSEAP_UNUSED,
705 OM_uint32 timeReq GSSEAP_UNUSED,
706 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
707 gss_buffer_t inputToken GSSEAP_UNUSED,
708 gss_buffer_t outputToken,
714 struct wpabuf *resp = NULL;
718 assert(inputToken != GSS_C_NO_BUFFER);
720 major = peerConfigInit(minor, cred, ctx);
721 if (GSS_ERROR(major))
724 assert(ctx->initiatorCtx.eap != NULL);
725 assert(ctx->flags & CTX_FLAG_EAP_PORT_ENABLED);
727 ctx->flags |= CTX_FLAG_EAP_REQ; /* we have a Request from the acceptor */
729 wpabuf_set(&ctx->initiatorCtx.reqData,
730 inputToken->value, inputToken->length);
732 major = GSS_S_CONTINUE_NEEDED;
734 code = eap_peer_sm_step(ctx->initiatorCtx.eap);
735 if (ctx->flags & CTX_FLAG_EAP_RESP) {
736 ctx->flags &= ~(CTX_FLAG_EAP_RESP);
738 resp = eap_get_eapRespData(ctx->initiatorCtx.eap);
739 } else if (ctx->flags & CTX_FLAG_EAP_SUCCESS) {
740 major = initReady(minor, ctx, reqFlags);
741 if (GSS_ERROR(major))
744 ctx->flags &= ~(CTX_FLAG_EAP_SUCCESS);
745 major = GSS_S_CONTINUE_NEEDED;
746 GSSEAP_SM_TRANSITION_NEXT(ctx);
747 } else if (ctx->flags & CTX_FLAG_EAP_FAIL) {
748 major = GSS_S_DEFECTIVE_CREDENTIAL;
749 *minor = GSSEAP_PEER_AUTH_FAILURE;
751 major = GSS_S_DEFECTIVE_TOKEN;
752 *minor = GSSEAP_PEER_BAD_MESSAGE;
758 gss_buffer_desc respBuf;
760 assert(major == GSS_S_CONTINUE_NEEDED);
762 respBuf.length = wpabuf_len(resp);
763 respBuf.value = (void *)wpabuf_head(resp);
765 tmpMajor = duplicateBuffer(&tmpMinor, &respBuf, outputToken);
766 if (GSS_ERROR(tmpMajor)) {
771 *smFlags |= SM_FLAG_SEND_TOKEN | SM_FLAG_OUTPUT_TOKEN_CRITICAL;
774 wpabuf_set(&ctx->initiatorCtx.reqData, NULL, 0);
775 peerConfigFree(&tmpMinor, ctx);
781 eapGssSmInitGssFlags(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,
791 OM_uint32 *smFlags GSSEAP_UNUSED)
793 unsigned char wireFlags[4];
794 gss_buffer_desc flagsBuf;
796 store_uint32_be(ctx->gssFlags & GSSEAP_WIRE_FLAGS_MASK, wireFlags);
798 flagsBuf.length = sizeof(wireFlags);
799 flagsBuf.value = wireFlags;
801 return duplicateBuffer(minor, &flagsBuf, outputToken);
805 eapGssSmInitGssChannelBindings(OM_uint32 *minor,
806 gss_cred_id_t cred GSSEAP_UNUSED,
808 gss_name_t target GSSEAP_UNUSED,
809 gss_OID mech GSSEAP_UNUSED,
810 OM_uint32 reqFlags GSSEAP_UNUSED,
811 OM_uint32 timeReq GSSEAP_UNUSED,
812 gss_channel_bindings_t chanBindings,
813 gss_buffer_t inputToken GSSEAP_UNUSED,
814 gss_buffer_t outputToken,
815 OM_uint32 *smFlags GSSEAP_UNUSED)
819 if ((ctx->flags & CTX_FLAG_KRB_REAUTH) == 0 &&
820 chanBindings != GSS_C_NO_CHANNEL_BINDINGS) {
821 major = gssEapWrap(minor, ctx, TRUE, GSS_C_QOP_DEFAULT,
822 &chanBindings->application_data, NULL, outputToken);
823 if (GSS_ERROR(major))
828 return GSS_S_CONTINUE_NEEDED;
831 #ifdef GSSEAP_ENABLE_REAUTH
833 eapGssSmInitReauthCreds(OM_uint32 *minor,
836 gss_name_t target GSSEAP_UNUSED,
837 gss_OID mech GSSEAP_UNUSED,
838 OM_uint32 reqFlags GSSEAP_UNUSED,
839 OM_uint32 timeReq GSSEAP_UNUSED,
840 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
841 gss_buffer_t inputToken,
842 gss_buffer_t outputToken GSSEAP_UNUSED,
843 OM_uint32 *smFlags GSSEAP_UNUSED)
847 if (ctx->gssFlags & GSS_C_MUTUAL_FLAG) {
848 major = gssEapStoreReauthCreds(minor, ctx, cred, inputToken);
849 if (GSS_ERROR(major))
854 return GSS_S_CONTINUE_NEEDED;
856 #endif /* GSSEAP_ENABLE_REAUTH */
859 eapGssSmInitInitiatorMIC(OM_uint32 *minor,
860 gss_cred_id_t cred GSSEAP_UNUSED,
862 gss_name_t target GSSEAP_UNUSED,
863 gss_OID mech GSSEAP_UNUSED,
864 OM_uint32 reqFlags GSSEAP_UNUSED,
865 OM_uint32 timeReq GSSEAP_UNUSED,
866 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
867 gss_buffer_t inputToken GSSEAP_UNUSED,
868 gss_buffer_t outputToken,
873 major = gssEapGetConversationMIC(minor, ctx, outputToken);
874 if (GSS_ERROR(major))
877 GSSEAP_SM_TRANSITION_NEXT(ctx);
880 *smFlags |= SM_FLAG_SEND_TOKEN | SM_FLAG_OUTPUT_TOKEN_CRITICAL;
882 return GSS_S_CONTINUE_NEEDED;
886 eapGssSmInitAcceptorMIC(OM_uint32 *minor,
887 gss_cred_id_t cred GSSEAP_UNUSED,
889 gss_name_t target GSSEAP_UNUSED,
890 gss_OID mech GSSEAP_UNUSED,
891 OM_uint32 reqFlags GSSEAP_UNUSED,
892 OM_uint32 timeReq GSSEAP_UNUSED,
893 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
894 gss_buffer_t inputToken,
895 gss_buffer_t outputToken GSSEAP_UNUSED,
896 OM_uint32 *smFlags GSSEAP_UNUSED)
900 major = gssEapVerifyConversationMIC(minor, ctx, inputToken);
901 if (GSS_ERROR(major))
904 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_ESTABLISHED);
908 return GSS_S_COMPLETE;
912 * Initiator state machine.
914 static struct gss_eap_sm eapGssInitiatorSm[] = {
916 ITOK_TYPE_CONTEXT_ERR,
918 GSSEAP_STATE_ALL & ~(GSSEAP_STATE_INITIAL),
923 ITOK_TYPE_ACCEPTOR_NAME_RESP,
924 ITOK_TYPE_ACCEPTOR_NAME_REQ,
925 GSSEAP_STATE_INITIAL | GSSEAP_STATE_AUTHENTICATE,
927 eapGssSmInitAcceptorName
930 ITOK_TYPE_SUPPORTED_INITIATOR_EXTS,
931 ITOK_TYPE_SUPPORTED_ACCEPTOR_EXTS,
932 GSSEAP_STATE_INITIAL | GSSEAP_STATE_AUTHENTICATE,
939 ITOK_TYPE_VENDOR_INFO,
940 GSSEAP_STATE_INITIAL,
942 eapGssSmInitVendorInfo
945 #ifdef GSSEAP_ENABLE_REAUTH
947 ITOK_TYPE_REAUTH_RESP,
948 ITOK_TYPE_REAUTH_REQ,
949 GSSEAP_STATE_INITIAL | GSSEAP_STATE_REAUTHENTICATE,
951 eapGssSmInitGssReauth
957 #ifdef GSSEAP_ENABLE_REAUTH
958 GSSEAP_STATE_REAUTHENTICATE |
960 GSSEAP_STATE_INITIAL,
961 SM_ITOK_FLAG_REQUIRED,
967 GSSEAP_STATE_AUTHENTICATE,
968 SM_ITOK_FLAG_REQUIRED,
969 eapGssSmInitAuthenticate
974 GSSEAP_STATE_INITIATOR_EXTS,
980 ITOK_TYPE_GSS_CHANNEL_BINDINGS,
981 GSSEAP_STATE_INITIATOR_EXTS,
983 eapGssSmInitGssChannelBindings
987 ITOK_TYPE_INITIATOR_MIC,
988 GSSEAP_STATE_INITIATOR_EXTS,
990 eapGssSmInitInitiatorMIC
992 #ifdef GSSEAP_ENABLE_REAUTH
994 ITOK_TYPE_REAUTH_CREDS,
996 GSSEAP_STATE_ACCEPTOR_EXTS,
998 eapGssSmInitReauthCreds
1001 /* other extensions go here */
1003 ITOK_TYPE_ACCEPTOR_MIC,
1005 GSSEAP_STATE_ACCEPTOR_EXTS,
1006 SM_ITOK_FLAG_REQUIRED,
1007 eapGssSmInitAcceptorMIC
1012 gss_init_sec_context(OM_uint32 *minor,
1014 gss_ctx_id_t *context_handle,
1015 gss_name_t target_name,
1017 OM_uint32 req_flags,
1019 gss_channel_bindings_t input_chan_bindings,
1020 gss_buffer_t input_token,
1021 gss_OID *actual_mech_type,
1022 gss_buffer_t output_token,
1023 OM_uint32 *ret_flags,
1024 OM_uint32 *time_rec)
1026 OM_uint32 major, tmpMinor;
1027 gss_ctx_id_t ctx = *context_handle;
1028 int initialContextToken = 0;
1032 output_token->length = 0;
1033 output_token->value = NULL;
1035 if (ctx == GSS_C_NO_CONTEXT) {
1036 if (input_token != GSS_C_NO_BUFFER && input_token->length != 0) {
1037 *minor = GSSEAP_WRONG_SIZE;
1038 return GSS_S_DEFECTIVE_TOKEN;
1041 major = gssEapAllocContext(minor, &ctx);
1042 if (GSS_ERROR(major))
1045 ctx->flags |= CTX_FLAG_INITIATOR;
1046 initialContextToken = 1;
1048 *context_handle = ctx;
1051 GSSEAP_MUTEX_LOCK(&ctx->mutex);
1053 if (cred == GSS_C_NO_CREDENTIAL) {
1054 if (ctx->defaultCred == GSS_C_NO_CREDENTIAL) {
1055 major = gssEapAcquireCred(minor,
1064 if (GSS_ERROR(major))
1068 cred = ctx->defaultCred;
1071 GSSEAP_MUTEX_LOCK(&cred->mutex);
1073 if ((cred->flags & CRED_FLAG_INITIATE) == 0) {
1074 major = GSS_S_NO_CRED;
1075 *minor = GSSEAP_CRED_USAGE_MISMATCH;
1079 if (initialContextToken) {
1080 major = initBegin(minor, cred, ctx, target_name, mech_type,
1081 req_flags, time_req, input_chan_bindings);
1082 if (GSS_ERROR(major))
1086 major = gssEapSmStep(minor,
1093 input_chan_bindings,
1097 sizeof(eapGssInitiatorSm) / sizeof(eapGssInitiatorSm[0]));
1098 if (GSS_ERROR(major))
1101 if (actual_mech_type != NULL) {
1104 tmpMajor = gssEapCanonicalizeOid(&tmpMinor, ctx->mechanismUsed, 0, actual_mech_type);
1105 if (GSS_ERROR(tmpMajor)) {
1111 if (ret_flags != NULL)
1112 *ret_flags = ctx->gssFlags;
1113 if (time_rec != NULL)
1114 gssEapContextTime(&tmpMinor, ctx, time_rec);
1116 assert(CTX_IS_ESTABLISHED(ctx) || major == GSS_S_CONTINUE_NEEDED);
1119 if (cred != GSS_C_NO_CREDENTIAL)
1120 GSSEAP_MUTEX_UNLOCK(&cred->mutex);
1121 GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
1123 if (GSS_ERROR(major))
1124 gssEapReleaseContext(&tmpMinor, context_handle);