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);
226 if ((cred->name->flags & (NAME_FLAG_NAI | NAME_FLAG_SERVICE)) == 0) {
227 *minor = GSSEAP_BAD_INITIATOR_NAME;
228 return GSS_S_BAD_NAME;
232 major = gssEapDisplayName(minor, cred->name, &identity, NULL);
233 if (GSS_ERROR(major))
236 eapPeerConfig->identity = (unsigned char *)identity.value;
237 eapPeerConfig->identity_len = identity.length;
239 krbPrincRealmToGssBuffer(cred->name->krbPrincipal, &realm);
241 /* anonymous_identity */
242 eapPeerConfig->anonymous_identity = GSSEAP_MALLOC(realm.length + 2);
243 if (eapPeerConfig->anonymous_identity == NULL) {
245 return GSS_S_FAILURE;
248 eapPeerConfig->anonymous_identity[0] = '@';
249 memcpy(eapPeerConfig->anonymous_identity + 1, realm.value, realm.length);
250 eapPeerConfig->anonymous_identity[1 + realm.length] = '\0';
251 eapPeerConfig->anonymous_identity_len = 1 + realm.length;
254 eapPeerConfig->password = (unsigned char *)cred->password.value;
255 eapPeerConfig->password_len = cred->password.length;
258 return GSS_S_COMPLETE;
262 peerConfigFree(OM_uint32 *minor,
265 struct eap_peer_config *eapPeerConfig = &ctx->initiatorCtx.eapPeerConfig;
267 if (eapPeerConfig->identity != NULL) {
268 GSSEAP_FREE(eapPeerConfig->identity);
269 eapPeerConfig->identity = NULL;
270 eapPeerConfig->identity_len = 0;
273 if (eapPeerConfig->anonymous_identity != NULL) {
274 GSSEAP_FREE(eapPeerConfig->anonymous_identity);
275 eapPeerConfig->anonymous_identity = NULL;
276 eapPeerConfig->anonymous_identity_len = 0;
280 return GSS_S_COMPLETE;
284 * Mark an initiator context as ready for cryptographic operations
287 initReady(OM_uint32 *minor, gss_ctx_id_t ctx, OM_uint32 reqFlags)
290 const unsigned char *key;
294 /* XXX actually check for mutual auth */
295 if (reqFlags & GSS_C_MUTUAL_FLAG)
296 ctx->gssFlags |= GSS_C_MUTUAL_FLAG;
299 /* Cache encryption type derived from selected mechanism OID */
300 major = gssEapOidToEnctype(minor, ctx->mechanismUsed, &ctx->encryptionType);
301 if (GSS_ERROR(major))
304 if (!eap_key_available(ctx->initiatorCtx.eap)) {
305 *minor = GSSEAP_KEY_UNAVAILABLE;
306 return GSS_S_UNAVAILABLE;
309 key = eap_get_eapKeyData(ctx->initiatorCtx.eap, &keyLength);
311 if (keyLength < EAP_EMSK_LEN) {
312 *minor = GSSEAP_KEY_TOO_SHORT;
313 return GSS_S_UNAVAILABLE;
316 major = gssEapDeriveRfc3961Key(minor,
317 &key[EAP_EMSK_LEN / 2],
321 if (GSS_ERROR(major))
324 major = rfc3961ChecksumTypeForKey(minor, &ctx->rfc3961Key,
326 if (GSS_ERROR(major))
329 major = sequenceInit(minor,
332 ((ctx->gssFlags & GSS_C_REPLAY_FLAG) != 0),
333 ((ctx->gssFlags & GSS_C_SEQUENCE_FLAG) != 0),
335 if (GSS_ERROR(major))
339 return GSS_S_COMPLETE;
343 initBegin(OM_uint32 *minor,
348 OM_uint32 reqFlags GSSEAP_UNUSED,
350 gss_channel_bindings_t chanBindings GSSEAP_UNUSED)
354 assert(cred != GSS_C_NO_CREDENTIAL);
356 if (cred->expiryTime)
357 ctx->expiryTime = cred->expiryTime;
358 else if (timeReq == 0 || timeReq == GSS_C_INDEFINITE)
361 ctx->expiryTime = time(NULL) + timeReq;
364 * The credential mutex protects its name, however we need to
365 * explicitly lock the acceptor name (unlikely as it may be
366 * that it has attributes set on it).
368 major = gssEapDuplicateName(minor, cred->name, &ctx->initiatorName);
369 if (GSS_ERROR(major))
372 if (target != GSS_C_NO_NAME) {
373 GSSEAP_MUTEX_LOCK(&target->mutex);
375 major = gssEapDuplicateName(minor, target, &ctx->acceptorName);
376 if (GSS_ERROR(major)) {
377 GSSEAP_MUTEX_UNLOCK(&target->mutex);
381 GSSEAP_MUTEX_UNLOCK(&target->mutex);
384 major = gssEapCanonicalizeOid(minor,
386 OID_FLAG_NULL_VALID | OID_FLAG_MAP_NULL_TO_DEFAULT_MECH,
387 &ctx->mechanismUsed);
388 if (GSS_ERROR(major))
391 /* If credentials were provided, check they're usable with this mech */
392 if (!gssEapCredAvailable(cred, ctx->mechanismUsed)) {
393 *minor = GSSEAP_CRED_MECH_MISMATCH;
394 return GSS_S_BAD_MECH;
398 return GSS_S_COMPLETE;
402 eapGssSmInitError(OM_uint32 *minor,
403 gss_cred_id_t cred GSSEAP_UNUSED,
404 gss_ctx_id_t ctx GSSEAP_UNUSED,
405 gss_name_t target GSSEAP_UNUSED,
406 gss_OID mech GSSEAP_UNUSED,
407 OM_uint32 reqFlags GSSEAP_UNUSED,
408 OM_uint32 timeReq GSSEAP_UNUSED,
409 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
410 gss_buffer_t inputToken,
411 gss_buffer_t outputToken GSSEAP_UNUSED,
412 OM_uint32 *smFlags GSSEAP_UNUSED)
417 if (inputToken->length < 8) {
418 *minor = GSSEAP_TOK_TRUNC;
419 return GSS_S_DEFECTIVE_TOKEN;
422 p = (unsigned char *)inputToken->value;
424 major = load_uint32_be(&p[0]);
425 *minor = ERROR_TABLE_BASE_eapg + load_uint32_be(&p[4]);
427 if (!GSS_ERROR(major) || !IS_WIRE_ERROR(*minor)) {
428 major = GSS_S_FAILURE;
429 *minor = GSSEAP_BAD_ERROR_TOKEN;
432 assert(GSS_ERROR(major));
437 #ifdef GSSEAP_ENABLE_REAUTH
439 eapGssSmInitGssReauth(OM_uint32 *minor,
443 gss_OID mech GSSEAP_UNUSED,
446 gss_channel_bindings_t chanBindings,
447 gss_buffer_t inputToken,
448 gss_buffer_t outputToken,
449 OM_uint32 *smFlags GSSEAP_UNUSED)
451 OM_uint32 major, tmpMinor;
452 gss_name_t mechTarget = GSS_C_NO_NAME;
453 gss_OID actualMech = GSS_C_NO_OID;
454 OM_uint32 gssFlags, timeRec;
456 assert(cred != GSS_C_NO_CREDENTIAL);
458 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_INITIAL) {
459 if (!gssEapCanReauthP(cred, target, timeReq))
460 return GSS_S_CONTINUE_NEEDED;
462 ctx->flags |= CTX_FLAG_KRB_REAUTH;
463 } else if ((ctx->flags & CTX_FLAG_KRB_REAUTH) == 0) {
464 major = GSS_S_DEFECTIVE_TOKEN;
465 *minor = GSSEAP_WRONG_ITOK;
469 major = gssEapMechToGlueName(minor, target, &mechTarget);
470 if (GSS_ERROR(major))
473 major = gssInitSecContext(minor,
477 (gss_OID)gss_mech_krb5,
478 reqFlags | GSS_C_MUTUAL_FLAG,
486 if (GSS_ERROR(major))
489 ctx->gssFlags = gssFlags;
491 if (major == GSS_S_COMPLETE) {
492 assert(GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_REAUTHENTICATE);
494 major = gssEapReauthComplete(minor, ctx, cred, actualMech, timeRec);
495 if (GSS_ERROR(major))
497 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_ESTABLISHED);
499 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_REAUTHENTICATE);
503 gssReleaseName(&tmpMinor, &mechTarget);
507 #endif /* GSSEAP_ENABLE_REAUTH */
511 eapGssSmInitVendorInfo(OM_uint32 *minor,
512 gss_cred_id_t cred GSSEAP_UNUSED,
513 gss_ctx_id_t ctx GSSEAP_UNUSED,
514 gss_name_t target GSSEAP_UNUSED,
515 gss_OID mech GSSEAP_UNUSED,
516 OM_uint32 reqFlags GSSEAP_UNUSED,
517 OM_uint32 timeReq GSSEAP_UNUSED,
518 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
519 gss_buffer_t inputToken GSSEAP_UNUSED,
520 gss_buffer_t outputToken,
521 OM_uint32 *smFlags GSSEAP_UNUSED)
525 major = makeStringBuffer(minor, "JANET(UK)", outputToken);
526 if (GSS_ERROR(major))
529 return GSS_S_CONTINUE_NEEDED;
534 eapGssSmInitAcceptorName(OM_uint32 *minor,
535 gss_cred_id_t cred GSSEAP_UNUSED,
537 gss_name_t target GSSEAP_UNUSED,
538 gss_OID mech GSSEAP_UNUSED,
539 OM_uint32 reqFlags GSSEAP_UNUSED,
540 OM_uint32 timeReq GSSEAP_UNUSED,
541 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
542 gss_buffer_t inputToken GSSEAP_UNUSED,
543 gss_buffer_t outputToken,
544 OM_uint32 *smFlags GSSEAP_UNUSED)
548 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_INITIAL &&
549 ctx->acceptorName != GSS_C_NO_NAME) {
551 /* Send desired target name to acceptor */
552 major = gssEapDisplayName(minor, ctx->acceptorName,
554 if (GSS_ERROR(major))
556 } else if (inputToken != GSS_C_NO_BUFFER &&
557 ctx->acceptorName == GSS_C_NO_NAME) {
558 /* Accept target name hint from acceptor */
559 major = gssEapImportName(minor, inputToken,
563 if (GSS_ERROR(major))
568 * Currently, other parts of the code assume that the acceptor name
569 * is available, hence this check.
571 if (ctx->acceptorName == GSS_C_NO_NAME) {
572 *minor = GSSEAP_NO_ACCEPTOR_NAME;
573 return GSS_S_FAILURE;
576 return GSS_S_CONTINUE_NEEDED;
580 eapGssSmInitIdentity(OM_uint32 *minor,
581 gss_cred_id_t cred GSSEAP_UNUSED,
583 gss_name_t target GSSEAP_UNUSED,
584 gss_OID mech GSSEAP_UNUSED,
585 OM_uint32 reqFlags GSSEAP_UNUSED,
586 OM_uint32 timeReq GSSEAP_UNUSED,
587 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
588 gss_buffer_t inputToken GSSEAP_UNUSED,
589 gss_buffer_t outputToken GSSEAP_UNUSED,
592 struct eap_config eapConfig;
594 #ifdef GSSEAP_ENABLE_REAUTH
595 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_REAUTHENTICATE) {
598 /* server didn't support reauthentication, sent EAP request */
599 gssDeleteSecContext(&tmpMinor, &ctx->reauthCtx, GSS_C_NO_BUFFER);
600 ctx->flags &= ~(CTX_FLAG_KRB_REAUTH);
601 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_INITIAL);
604 *smFlags |= SM_FLAG_FORCE_SEND_TOKEN;
606 assert((ctx->flags & CTX_FLAG_KRB_REAUTH) == 0);
607 assert(inputToken == GSS_C_NO_BUFFER);
609 memset(&eapConfig, 0, sizeof(eapConfig));
611 ctx->initiatorCtx.eap = eap_peer_sm_init(ctx,
612 &gssEapPolicyCallbacks,
615 if (ctx->initiatorCtx.eap == NULL) {
616 *minor = GSSEAP_PEER_SM_INIT_FAILURE;
617 return GSS_S_FAILURE;
620 ctx->flags |= CTX_FLAG_EAP_RESTART | CTX_FLAG_EAP_PORT_ENABLED;
622 /* poke EAP state machine */
623 if (eap_peer_sm_step(ctx->initiatorCtx.eap) != 0) {
624 *minor = GSSEAP_PEER_SM_STEP_FAILURE;
625 return GSS_S_FAILURE;
628 GSSEAP_SM_TRANSITION_NEXT(ctx);
632 return GSS_S_CONTINUE_NEEDED;
636 eapGssSmInitAuthenticate(OM_uint32 *minor,
639 gss_name_t target GSSEAP_UNUSED,
640 gss_OID mech GSSEAP_UNUSED,
641 OM_uint32 reqFlags GSSEAP_UNUSED,
642 OM_uint32 timeReq GSSEAP_UNUSED,
643 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
644 gss_buffer_t inputToken GSSEAP_UNUSED,
645 gss_buffer_t outputToken,
651 struct wpabuf *resp = NULL;
655 assert(inputToken != GSS_C_NO_BUFFER);
657 major = peerConfigInit(minor, cred, ctx);
658 if (GSS_ERROR(major))
661 assert(ctx->initiatorCtx.eap != NULL);
662 assert(ctx->flags & CTX_FLAG_EAP_PORT_ENABLED);
664 ctx->flags |= CTX_FLAG_EAP_REQ; /* we have a Request from the acceptor */
666 wpabuf_set(&ctx->initiatorCtx.reqData,
667 inputToken->value, inputToken->length);
669 major = GSS_S_CONTINUE_NEEDED;
671 code = eap_peer_sm_step(ctx->initiatorCtx.eap);
672 if (ctx->flags & CTX_FLAG_EAP_RESP) {
673 ctx->flags &= ~(CTX_FLAG_EAP_RESP);
675 resp = eap_get_eapRespData(ctx->initiatorCtx.eap);
676 } else if (ctx->flags & CTX_FLAG_EAP_SUCCESS) {
677 major = initReady(minor, ctx, reqFlags);
678 if (GSS_ERROR(major))
681 ctx->flags &= ~(CTX_FLAG_EAP_SUCCESS);
682 major = GSS_S_CONTINUE_NEEDED;
683 GSSEAP_SM_TRANSITION_NEXT(ctx);
684 } else if (ctx->flags & CTX_FLAG_EAP_FAIL) {
685 major = GSS_S_DEFECTIVE_CREDENTIAL;
686 *minor = GSSEAP_PEER_AUTH_FAILURE;
688 major = GSS_S_DEFECTIVE_TOKEN;
689 *minor = GSSEAP_PEER_BAD_MESSAGE;
695 gss_buffer_desc respBuf;
697 assert(major == GSS_S_CONTINUE_NEEDED);
699 respBuf.length = wpabuf_len(resp);
700 respBuf.value = (void *)wpabuf_head(resp);
702 tmpMajor = duplicateBuffer(&tmpMinor, &respBuf, outputToken);
703 if (GSS_ERROR(tmpMajor)) {
708 *smFlags |= SM_FLAG_OUTPUT_TOKEN_CRITICAL;
711 wpabuf_set(&ctx->initiatorCtx.reqData, NULL, 0);
712 peerConfigFree(&tmpMinor, ctx);
718 eapGssSmInitGssChannelBindings(OM_uint32 *minor,
719 gss_cred_id_t cred GSSEAP_UNUSED,
721 gss_name_t target GSSEAP_UNUSED,
722 gss_OID mech GSSEAP_UNUSED,
723 OM_uint32 reqFlags GSSEAP_UNUSED,
724 OM_uint32 timeReq GSSEAP_UNUSED,
725 gss_channel_bindings_t chanBindings,
726 gss_buffer_t inputToken GSSEAP_UNUSED,
727 gss_buffer_t outputToken,
731 gss_buffer_desc buffer = GSS_C_EMPTY_BUFFER;
733 if (chanBindings != GSS_C_NO_CHANNEL_BINDINGS)
734 buffer = chanBindings->application_data;
736 major = gssEapWrap(minor, ctx, TRUE, GSS_C_QOP_DEFAULT,
737 &buffer, NULL, outputToken);
738 if (GSS_ERROR(major))
741 assert(outputToken->value != NULL);
744 *smFlags |= SM_FLAG_OUTPUT_TOKEN_CRITICAL;
746 return GSS_S_CONTINUE_NEEDED;
749 #ifdef GSSEAP_ENABLE_REAUTH
751 eapGssSmInitReauthCreds(OM_uint32 *minor,
754 gss_name_t target GSSEAP_UNUSED,
755 gss_OID mech GSSEAP_UNUSED,
756 OM_uint32 reqFlags GSSEAP_UNUSED,
757 OM_uint32 timeReq GSSEAP_UNUSED,
758 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
759 gss_buffer_t inputToken,
760 gss_buffer_t outputToken GSSEAP_UNUSED,
761 OM_uint32 *smFlags GSSEAP_UNUSED)
765 if (ctx->gssFlags & GSS_C_MUTUAL_FLAG) {
766 major = gssEapStoreReauthCreds(minor, ctx, cred, inputToken);
767 if (GSS_ERROR(major))
772 return GSS_S_CONTINUE_NEEDED;
774 #endif /* GSSEAP_ENABLE_REAUTH */
777 eapGssSmInitCompleteInitiatorExts(OM_uint32 *minor,
778 gss_cred_id_t cred GSSEAP_UNUSED,
780 gss_name_t target GSSEAP_UNUSED,
781 gss_OID mech GSSEAP_UNUSED,
782 OM_uint32 reqFlags GSSEAP_UNUSED,
783 OM_uint32 timeReq GSSEAP_UNUSED,
784 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
785 gss_buffer_t inputToken GSSEAP_UNUSED,
786 gss_buffer_t outputToken GSSEAP_UNUSED,
789 GSSEAP_SM_TRANSITION_NEXT(ctx);
792 *smFlags |= SM_FLAG_FORCE_SEND_TOKEN;
794 return GSS_S_CONTINUE_NEEDED;
798 eapGssSmInitCompleteAcceptorExts(OM_uint32 *minor,
799 gss_cred_id_t cred GSSEAP_UNUSED,
801 gss_name_t target GSSEAP_UNUSED,
802 gss_OID mech GSSEAP_UNUSED,
803 OM_uint32 reqFlags GSSEAP_UNUSED,
804 OM_uint32 timeReq GSSEAP_UNUSED,
805 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
806 gss_buffer_t inputToken GSSEAP_UNUSED,
807 gss_buffer_t outputToken GSSEAP_UNUSED,
808 OM_uint32 *smFlags GSSEAP_UNUSED)
810 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_ESTABLISHED);
814 return GSS_S_COMPLETE;
817 static struct gss_eap_sm eapGssInitiatorSm[] = {
819 ITOK_TYPE_CONTEXT_ERR,
821 GSSEAP_STATE_ALL & ~(GSSEAP_STATE_INITIAL),
826 ITOK_TYPE_ACCEPTOR_NAME_RESP,
827 ITOK_TYPE_ACCEPTOR_NAME_REQ,
828 GSSEAP_STATE_INITIAL | GSSEAP_STATE_AUTHENTICATE,
830 eapGssSmInitAcceptorName
835 ITOK_TYPE_VENDOR_INFO,
836 GSSEAP_STATE_INITIAL,
838 eapGssSmInitVendorInfo
841 #ifdef GSSEAP_ENABLE_REAUTH
843 ITOK_TYPE_REAUTH_RESP,
844 ITOK_TYPE_REAUTH_REQ,
845 GSSEAP_STATE_INITIAL | GSSEAP_STATE_REAUTHENTICATE,
847 eapGssSmInitGssReauth
853 #ifdef GSSEAP_ENABLE_REAUTH
854 GSSEAP_STATE_REAUTHENTICATE |
856 GSSEAP_STATE_INITIAL,
857 SM_ITOK_FLAG_REQUIRED,
863 GSSEAP_STATE_AUTHENTICATE,
864 SM_ITOK_FLAG_REQUIRED,
865 eapGssSmInitAuthenticate
869 ITOK_TYPE_GSS_CHANNEL_BINDINGS,
870 GSSEAP_STATE_INITIATOR_EXTS,
871 SM_ITOK_FLAG_REQUIRED,
872 eapGssSmInitGssChannelBindings
877 GSSEAP_STATE_INITIATOR_EXTS,
879 eapGssSmInitCompleteInitiatorExts
881 #ifdef GSSEAP_ENABLE_REAUTH
883 ITOK_TYPE_REAUTH_CREDS,
885 GSSEAP_STATE_ACCEPTOR_EXTS,
887 eapGssSmInitReauthCreds
890 /* other extensions go here */
894 GSSEAP_STATE_ACCEPTOR_EXTS,
896 eapGssSmInitCompleteAcceptorExts
900 OM_uint32 KRB5_CALLCONV
901 gss_init_sec_context(OM_uint32 *minor,
903 gss_ctx_id_t *context_handle,
904 gss_name_t target_name,
908 gss_channel_bindings_t input_chan_bindings,
909 gss_buffer_t input_token,
910 gss_OID *actual_mech_type,
911 gss_buffer_t output_token,
912 OM_uint32 *ret_flags,
915 OM_uint32 major, tmpMinor;
916 gss_ctx_id_t ctx = *context_handle;
917 int initialContextToken = 0;
921 output_token->length = 0;
922 output_token->value = NULL;
924 if (ctx == GSS_C_NO_CONTEXT) {
925 if (input_token != GSS_C_NO_BUFFER && input_token->length != 0) {
926 *minor = GSSEAP_WRONG_SIZE;
927 return GSS_S_DEFECTIVE_TOKEN;
930 major = gssEapAllocContext(minor, &ctx);
931 if (GSS_ERROR(major))
934 ctx->flags |= CTX_FLAG_INITIATOR;
935 initialContextToken = 1;
937 *context_handle = ctx;
940 GSSEAP_MUTEX_LOCK(&ctx->mutex);
942 if (cred == GSS_C_NO_CREDENTIAL) {
943 if (ctx->defaultCred == GSS_C_NO_CREDENTIAL) {
944 major = gssEapAcquireCred(minor,
953 if (GSS_ERROR(major))
957 cred = ctx->defaultCred;
960 GSSEAP_MUTEX_LOCK(&cred->mutex);
962 if ((cred->flags & CRED_FLAG_INITIATE) == 0) {
963 major = GSS_S_NO_CRED;
964 *minor = GSSEAP_CRED_USAGE_MISMATCH;
968 if (initialContextToken) {
969 major = initBegin(minor, cred, ctx, target_name, mech_type,
970 req_flags, time_req, input_chan_bindings);
971 if (GSS_ERROR(major))
975 major = gssEapSmStep(minor,
986 sizeof(eapGssInitiatorSm) / sizeof(eapGssInitiatorSm[0]));
987 if (GSS_ERROR(major))
990 if (actual_mech_type != NULL) {
993 tmpMajor = gssEapCanonicalizeOid(&tmpMinor, ctx->mechanismUsed, 0, actual_mech_type);
994 if (GSS_ERROR(tmpMajor)) {
1000 if (ret_flags != NULL)
1001 *ret_flags = ctx->gssFlags;
1002 if (time_rec != NULL)
1003 gssEapContextTime(&tmpMinor, ctx, time_rec);
1005 assert(CTX_IS_ESTABLISHED(ctx) || major == GSS_S_CONTINUE_NEEDED);
1008 if (cred != GSS_C_NO_CREDENTIAL)
1009 GSSEAP_MUTEX_UNLOCK(&cred->mutex);
1010 GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
1012 if (GSS_ERROR(major))
1013 gssEapReleaseContext(&tmpMinor, context_handle);