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,
202 krb5_context krbContext;
203 struct eap_peer_config *eapPeerConfig = &ctx->initiatorCtx.eapPeerConfig;
204 krb5_error_code code;
205 char *identity, *anonymousIdentity;
207 eapPeerConfig->identity = NULL;
208 eapPeerConfig->identity_len = 0;
209 eapPeerConfig->password = NULL;
210 eapPeerConfig->password_len = 0;
212 assert(cred != GSS_C_NO_CREDENTIAL);
214 GSSEAP_KRB_INIT(&krbContext);
216 eapPeerConfig->fragment_size = 1024;
221 assert(cred->name != GSS_C_NO_NAME);
223 if ((cred->name->flags & (NAME_FLAG_NAI | NAME_FLAG_SERVICE)) == 0) {
224 *minor = GSSEAP_BAD_INITIATOR_NAME;
225 return GSS_S_BAD_NAME;
228 code = krb5_unparse_name(krbContext, cred->name->krbPrincipal, &identity);
231 return GSS_S_FAILURE;
234 anonymousIdentity = strchr(identity, '@');
235 if (anonymousIdentity == NULL)
236 anonymousIdentity = "";
238 eapPeerConfig->identity = (unsigned char *)identity;
239 eapPeerConfig->identity_len = strlen(identity);
240 eapPeerConfig->anonymous_identity = (unsigned char *)anonymousIdentity;
241 eapPeerConfig->anonymous_identity_len = strlen(anonymousIdentity);
242 eapPeerConfig->password = (unsigned char *)cred->password.value;
243 eapPeerConfig->password_len = cred->password.length;
246 return GSS_S_COMPLETE;
250 peerConfigFree(OM_uint32 *minor,
253 krb5_context krbContext;
254 struct eap_peer_config *eapPeerConfig = &ctx->initiatorCtx.eapPeerConfig;
256 GSSEAP_KRB_INIT(&krbContext);
258 krb5_free_unparsed_name(krbContext, (char *)eapPeerConfig->identity);
261 return GSS_S_COMPLETE;
265 * Mark an initiator context as ready for cryptographic operations
268 initReady(OM_uint32 *minor, gss_ctx_id_t ctx, OM_uint32 reqFlags)
271 const unsigned char *key;
275 /* XXX actually check for mutual auth */
276 if (reqFlags & GSS_C_MUTUAL_FLAG)
277 ctx->gssFlags |= GSS_C_MUTUAL_FLAG;
280 /* Cache encryption type derived from selected mechanism OID */
281 major = gssEapOidToEnctype(minor, ctx->mechanismUsed, &ctx->encryptionType);
282 if (GSS_ERROR(major))
285 if (!eap_key_available(ctx->initiatorCtx.eap)) {
286 *minor = GSSEAP_KEY_UNAVAILABLE;
287 return GSS_S_UNAVAILABLE;
290 key = eap_get_eapKeyData(ctx->initiatorCtx.eap, &keyLength);
292 if (keyLength < EAP_EMSK_LEN) {
293 *minor = GSSEAP_KEY_TOO_SHORT;
294 return GSS_S_UNAVAILABLE;
297 major = gssEapDeriveRfc3961Key(minor,
298 &key[EAP_EMSK_LEN / 2],
302 if (GSS_ERROR(major))
305 major = rfc3961ChecksumTypeForKey(minor, &ctx->rfc3961Key,
307 if (GSS_ERROR(major))
310 major = sequenceInit(minor,
313 ((ctx->gssFlags & GSS_C_REPLAY_FLAG) != 0),
314 ((ctx->gssFlags & GSS_C_SEQUENCE_FLAG) != 0),
316 if (GSS_ERROR(major))
320 return GSS_S_COMPLETE;
324 initBegin(OM_uint32 *minor,
329 OM_uint32 reqFlags GSSEAP_UNUSED,
331 gss_channel_bindings_t chanBindings GSSEAP_UNUSED)
335 assert(cred != GSS_C_NO_CREDENTIAL);
337 if (cred->expiryTime)
338 ctx->expiryTime = cred->expiryTime;
339 else if (timeReq == 0 || timeReq == GSS_C_INDEFINITE)
342 ctx->expiryTime = time(NULL) + timeReq;
345 * The credential mutex protects its name, however we need to
346 * explicitly lock the acceptor name (unlikely as it may be
347 * that it has attributes set on it).
349 major = gssEapDuplicateName(minor, cred->name, &ctx->initiatorName);
350 if (GSS_ERROR(major))
353 if (target != GSS_C_NO_NAME) {
354 GSSEAP_MUTEX_LOCK(&target->mutex);
356 major = gssEapDuplicateName(minor, target, &ctx->acceptorName);
357 if (GSS_ERROR(major)) {
358 GSSEAP_MUTEX_UNLOCK(&target->mutex);
362 GSSEAP_MUTEX_UNLOCK(&target->mutex);
365 major = gssEapCanonicalizeOid(minor,
367 OID_FLAG_NULL_VALID | OID_FLAG_MAP_NULL_TO_DEFAULT_MECH,
368 &ctx->mechanismUsed);
369 if (GSS_ERROR(major))
372 /* If credentials were provided, check they're usable with this mech */
373 if (!gssEapCredAvailable(cred, ctx->mechanismUsed)) {
374 *minor = GSSEAP_CRED_MECH_MISMATCH;
375 return GSS_S_BAD_MECH;
379 return GSS_S_COMPLETE;
383 eapGssSmInitError(OM_uint32 *minor,
384 gss_cred_id_t cred GSSEAP_UNUSED,
385 gss_ctx_id_t ctx GSSEAP_UNUSED,
386 gss_name_t target GSSEAP_UNUSED,
387 gss_OID mech GSSEAP_UNUSED,
388 OM_uint32 reqFlags GSSEAP_UNUSED,
389 OM_uint32 timeReq GSSEAP_UNUSED,
390 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
391 gss_buffer_t inputToken,
392 gss_buffer_t outputToken GSSEAP_UNUSED,
393 OM_uint32 *smFlags GSSEAP_UNUSED)
398 if (inputToken->length < 8) {
399 *minor = GSSEAP_TOK_TRUNC;
400 return GSS_S_DEFECTIVE_TOKEN;
403 p = (unsigned char *)inputToken->value;
405 major = load_uint32_be(&p[0]);
406 *minor = ERROR_TABLE_BASE_eapg + load_uint32_be(&p[4]);
408 if (!GSS_ERROR(major) || !IS_WIRE_ERROR(*minor)) {
409 major = GSS_S_FAILURE;
410 *minor = GSSEAP_BAD_ERROR_TOKEN;
413 assert(GSS_ERROR(major));
418 #ifdef GSSEAP_ENABLE_REAUTH
420 eapGssSmInitGssReauth(OM_uint32 *minor,
424 gss_OID mech GSSEAP_UNUSED,
427 gss_channel_bindings_t chanBindings,
428 gss_buffer_t inputToken,
429 gss_buffer_t outputToken,
430 OM_uint32 *smFlags GSSEAP_UNUSED)
432 OM_uint32 major, tmpMinor;
433 gss_name_t mechTarget = GSS_C_NO_NAME;
434 gss_OID actualMech = GSS_C_NO_OID;
435 OM_uint32 gssFlags, timeRec;
437 assert(cred != GSS_C_NO_CREDENTIAL);
439 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_INITIAL) {
440 if (!gssEapCanReauthP(cred, target, timeReq))
441 return GSS_S_CONTINUE_NEEDED;
443 ctx->flags |= CTX_FLAG_KRB_REAUTH;
444 } else if ((ctx->flags & CTX_FLAG_KRB_REAUTH) == 0) {
445 major = GSS_S_DEFECTIVE_TOKEN;
446 *minor = GSSEAP_WRONG_ITOK;
450 major = gssEapMechToGlueName(minor, target, &mechTarget);
451 if (GSS_ERROR(major))
454 major = gssInitSecContext(minor,
458 (gss_OID)gss_mech_krb5,
459 reqFlags | GSS_C_MUTUAL_FLAG,
467 if (GSS_ERROR(major))
470 ctx->gssFlags = gssFlags;
472 if (major == GSS_S_COMPLETE) {
473 assert(GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_REAUTHENTICATE);
475 major = gssEapReauthComplete(minor, ctx, cred, actualMech, timeRec);
476 if (GSS_ERROR(major))
478 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_ESTABLISHED);
480 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_REAUTHENTICATE);
484 gssReleaseName(&tmpMinor, &mechTarget);
488 #endif /* GSSEAP_ENABLE_REAUTH */
492 eapGssSmInitVendorInfo(OM_uint32 *minor,
493 gss_cred_id_t cred GSSEAP_UNUSED,
494 gss_ctx_id_t ctx GSSEAP_UNUSED,
495 gss_name_t target GSSEAP_UNUSED,
496 gss_OID mech GSSEAP_UNUSED,
497 OM_uint32 reqFlags GSSEAP_UNUSED,
498 OM_uint32 timeReq GSSEAP_UNUSED,
499 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
500 gss_buffer_t inputToken GSSEAP_UNUSED,
501 gss_buffer_t outputToken,
502 OM_uint32 *smFlags GSSEAP_UNUSED)
506 major = makeStringBuffer(minor, "JANET(UK)", outputToken);
507 if (GSS_ERROR(major))
510 return GSS_S_CONTINUE_NEEDED;
515 eapGssSmInitAcceptorName(OM_uint32 *minor,
516 gss_cred_id_t cred GSSEAP_UNUSED,
518 gss_name_t target GSSEAP_UNUSED,
519 gss_OID mech GSSEAP_UNUSED,
520 OM_uint32 reqFlags GSSEAP_UNUSED,
521 OM_uint32 timeReq GSSEAP_UNUSED,
522 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
523 gss_buffer_t inputToken GSSEAP_UNUSED,
524 gss_buffer_t outputToken,
525 OM_uint32 *smFlags GSSEAP_UNUSED)
529 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_INITIAL &&
530 ctx->acceptorName != GSS_C_NO_NAME) {
532 /* Send desired target name to acceptor */
533 major = gssEapDisplayName(minor, ctx->acceptorName,
535 if (GSS_ERROR(major))
537 } else if (inputToken != GSS_C_NO_BUFFER &&
538 ctx->acceptorName == GSS_C_NO_NAME) {
539 /* Accept target name hint from acceptor */
540 major = gssEapImportName(minor, inputToken,
544 if (GSS_ERROR(major))
549 * Currently, other parts of the code assume that the acceptor name
550 * is available, hence this check.
552 if (ctx->acceptorName == GSS_C_NO_NAME) {
553 *minor = GSSEAP_NO_ACCEPTOR_NAME;
554 return GSS_S_FAILURE;
557 return GSS_S_CONTINUE_NEEDED;
561 eapGssSmInitIdentity(OM_uint32 *minor,
562 gss_cred_id_t cred GSSEAP_UNUSED,
564 gss_name_t target GSSEAP_UNUSED,
565 gss_OID mech GSSEAP_UNUSED,
566 OM_uint32 reqFlags GSSEAP_UNUSED,
567 OM_uint32 timeReq GSSEAP_UNUSED,
568 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
569 gss_buffer_t inputToken GSSEAP_UNUSED,
570 gss_buffer_t outputToken GSSEAP_UNUSED,
573 struct eap_config eapConfig;
575 #ifdef GSSEAP_ENABLE_REAUTH
576 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_REAUTHENTICATE) {
579 /* server didn't support reauthentication, sent EAP request */
580 gssDeleteSecContext(&tmpMinor, &ctx->kerberosCtx, GSS_C_NO_BUFFER);
581 ctx->flags &= ~(CTX_FLAG_KRB_REAUTH);
582 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_INITIAL);
585 *smFlags |= SM_FLAG_FORCE_SEND_TOKEN;
587 assert((ctx->flags & CTX_FLAG_KRB_REAUTH) == 0);
588 assert(inputToken == GSS_C_NO_BUFFER);
590 memset(&eapConfig, 0, sizeof(eapConfig));
592 ctx->initiatorCtx.eap = eap_peer_sm_init(ctx,
593 &gssEapPolicyCallbacks,
596 if (ctx->initiatorCtx.eap == NULL) {
597 *minor = GSSEAP_PEER_SM_INIT_FAILURE;
598 return GSS_S_FAILURE;
601 ctx->flags |= CTX_FLAG_EAP_RESTART | CTX_FLAG_EAP_PORT_ENABLED;
603 /* poke EAP state machine */
604 if (eap_peer_sm_step(ctx->initiatorCtx.eap) != 0) {
605 *minor = GSSEAP_PEER_SM_STEP_FAILURE;
606 return GSS_S_FAILURE;
609 GSSEAP_SM_TRANSITION_NEXT(ctx);
613 return GSS_S_CONTINUE_NEEDED;
617 eapGssSmInitAuthenticate(OM_uint32 *minor,
620 gss_name_t target GSSEAP_UNUSED,
621 gss_OID mech GSSEAP_UNUSED,
622 OM_uint32 reqFlags GSSEAP_UNUSED,
623 OM_uint32 timeReq GSSEAP_UNUSED,
624 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
625 gss_buffer_t inputToken GSSEAP_UNUSED,
626 gss_buffer_t outputToken,
632 struct wpabuf *resp = NULL;
636 assert(inputToken != GSS_C_NO_BUFFER);
638 major = peerConfigInit(minor, cred, ctx);
639 if (GSS_ERROR(major))
642 assert(ctx->initiatorCtx.eap != NULL);
643 assert(ctx->flags & CTX_FLAG_EAP_PORT_ENABLED);
645 ctx->flags |= CTX_FLAG_EAP_REQ; /* we have a Request from the acceptor */
647 wpabuf_set(&ctx->initiatorCtx.reqData,
648 inputToken->value, inputToken->length);
650 major = GSS_S_CONTINUE_NEEDED;
652 code = eap_peer_sm_step(ctx->initiatorCtx.eap);
653 if (ctx->flags & CTX_FLAG_EAP_RESP) {
654 ctx->flags &= ~(CTX_FLAG_EAP_RESP);
656 resp = eap_get_eapRespData(ctx->initiatorCtx.eap);
657 } else if (ctx->flags & CTX_FLAG_EAP_SUCCESS) {
658 major = initReady(minor, ctx, reqFlags);
659 if (GSS_ERROR(major))
662 ctx->flags &= ~(CTX_FLAG_EAP_SUCCESS);
663 major = GSS_S_CONTINUE_NEEDED;
664 GSSEAP_SM_TRANSITION_NEXT(ctx);
665 } else if (ctx->flags & CTX_FLAG_EAP_FAIL) {
666 major = GSS_S_DEFECTIVE_CREDENTIAL;
667 *minor = GSSEAP_PEER_AUTH_FAILURE;
669 major = GSS_S_DEFECTIVE_TOKEN;
670 *minor = GSSEAP_PEER_BAD_MESSAGE;
676 gss_buffer_desc respBuf;
678 assert(major == GSS_S_CONTINUE_NEEDED);
680 respBuf.length = wpabuf_len(resp);
681 respBuf.value = (void *)wpabuf_head(resp);
683 tmpMajor = duplicateBuffer(&tmpMinor, &respBuf, outputToken);
684 if (GSS_ERROR(tmpMajor)) {
689 *smFlags |= SM_FLAG_OUTPUT_TOKEN_CRITICAL;
692 wpabuf_set(&ctx->initiatorCtx.reqData, NULL, 0);
693 peerConfigFree(&tmpMinor, ctx);
699 eapGssSmInitGssChannelBindings(OM_uint32 *minor,
700 gss_cred_id_t cred GSSEAP_UNUSED,
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,
707 gss_buffer_t inputToken GSSEAP_UNUSED,
708 gss_buffer_t outputToken,
712 gss_buffer_desc buffer = GSS_C_EMPTY_BUFFER;
714 if (chanBindings != GSS_C_NO_CHANNEL_BINDINGS)
715 buffer = chanBindings->application_data;
717 major = gssEapWrap(minor, ctx, TRUE, GSS_C_QOP_DEFAULT,
718 &buffer, NULL, outputToken);
719 if (GSS_ERROR(major))
722 assert(outputToken->value != NULL);
725 *smFlags |= SM_FLAG_OUTPUT_TOKEN_CRITICAL;
727 return GSS_S_CONTINUE_NEEDED;
730 #ifdef GSSEAP_ENABLE_REAUTH
732 eapGssSmInitReauthCreds(OM_uint32 *minor,
735 gss_name_t target GSSEAP_UNUSED,
736 gss_OID mech GSSEAP_UNUSED,
737 OM_uint32 reqFlags GSSEAP_UNUSED,
738 OM_uint32 timeReq GSSEAP_UNUSED,
739 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
740 gss_buffer_t inputToken,
741 gss_buffer_t outputToken GSSEAP_UNUSED,
742 OM_uint32 *smFlags GSSEAP_UNUSED)
746 if (ctx->gssFlags & GSS_C_MUTUAL_FLAG) {
747 major = gssEapStoreReauthCreds(minor, ctx, cred, inputToken);
748 if (GSS_ERROR(major))
753 return GSS_S_CONTINUE_NEEDED;
755 #endif /* GSSEAP_ENABLE_REAUTH */
758 eapGssSmInitCompleteInitiatorExts(OM_uint32 *minor,
759 gss_cred_id_t cred GSSEAP_UNUSED,
761 gss_name_t target GSSEAP_UNUSED,
762 gss_OID mech GSSEAP_UNUSED,
763 OM_uint32 reqFlags GSSEAP_UNUSED,
764 OM_uint32 timeReq GSSEAP_UNUSED,
765 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
766 gss_buffer_t inputToken GSSEAP_UNUSED,
767 gss_buffer_t outputToken GSSEAP_UNUSED,
770 GSSEAP_SM_TRANSITION_NEXT(ctx);
773 *smFlags |= SM_FLAG_FORCE_SEND_TOKEN;
775 return GSS_S_CONTINUE_NEEDED;
779 eapGssSmInitCompleteAcceptorExts(OM_uint32 *minor,
780 gss_cred_id_t cred GSSEAP_UNUSED,
782 gss_name_t target GSSEAP_UNUSED,
783 gss_OID mech GSSEAP_UNUSED,
784 OM_uint32 reqFlags GSSEAP_UNUSED,
785 OM_uint32 timeReq GSSEAP_UNUSED,
786 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
787 gss_buffer_t inputToken GSSEAP_UNUSED,
788 gss_buffer_t outputToken GSSEAP_UNUSED,
789 OM_uint32 *smFlags GSSEAP_UNUSED)
791 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_ESTABLISHED);
795 return GSS_S_COMPLETE;
798 static struct gss_eap_sm eapGssInitiatorSm[] = {
800 ITOK_TYPE_CONTEXT_ERR,
802 GSSEAP_STATE_ALL & ~(GSSEAP_STATE_INITIAL),
807 ITOK_TYPE_ACCEPTOR_NAME_RESP,
808 ITOK_TYPE_ACCEPTOR_NAME_REQ,
809 GSSEAP_STATE_INITIAL | GSSEAP_STATE_AUTHENTICATE,
811 eapGssSmInitAcceptorName
816 ITOK_TYPE_VENDOR_INFO,
817 GSSEAP_STATE_INITIAL,
819 eapGssSmInitVendorInfo
822 #ifdef GSSEAP_ENABLE_REAUTH
824 ITOK_TYPE_REAUTH_RESP,
825 ITOK_TYPE_REAUTH_REQ,
826 GSSEAP_STATE_INITIAL | GSSEAP_STATE_REAUTHENTICATE,
828 eapGssSmInitGssReauth
834 #ifdef GSSEAP_ENABLE_REAUTH
835 GSSEAP_STATE_REAUTHENTICATE |
837 GSSEAP_STATE_INITIAL,
838 SM_ITOK_FLAG_REQUIRED,
844 GSSEAP_STATE_AUTHENTICATE,
845 SM_ITOK_FLAG_REQUIRED,
846 eapGssSmInitAuthenticate
850 ITOK_TYPE_GSS_CHANNEL_BINDINGS,
851 GSSEAP_STATE_INITIATOR_EXTS,
852 SM_ITOK_FLAG_REQUIRED,
853 eapGssSmInitGssChannelBindings
858 GSSEAP_STATE_INITIATOR_EXTS,
860 eapGssSmInitCompleteInitiatorExts
862 #ifdef GSSEAP_ENABLE_REAUTH
864 ITOK_TYPE_REAUTH_CREDS,
866 GSSEAP_STATE_ACCEPTOR_EXTS,
868 eapGssSmInitReauthCreds
871 /* other extensions go here */
875 GSSEAP_STATE_ACCEPTOR_EXTS,
877 eapGssSmInitCompleteAcceptorExts
882 gss_init_sec_context(OM_uint32 *minor,
884 gss_ctx_id_t *context_handle,
885 gss_name_t target_name,
889 gss_channel_bindings_t input_chan_bindings,
890 gss_buffer_t input_token,
891 gss_OID *actual_mech_type,
892 gss_buffer_t output_token,
893 OM_uint32 *ret_flags,
896 OM_uint32 major, tmpMinor;
897 gss_ctx_id_t ctx = *context_handle;
898 int initialContextToken = 0;
902 output_token->length = 0;
903 output_token->value = NULL;
905 if (ctx == GSS_C_NO_CONTEXT) {
906 if (input_token != GSS_C_NO_BUFFER && input_token->length != 0) {
907 *minor = GSSEAP_WRONG_SIZE;
908 return GSS_S_DEFECTIVE_TOKEN;
911 major = gssEapAllocContext(minor, &ctx);
912 if (GSS_ERROR(major))
915 ctx->flags |= CTX_FLAG_INITIATOR;
916 initialContextToken = 1;
918 *context_handle = ctx;
921 GSSEAP_MUTEX_LOCK(&ctx->mutex);
923 if (cred == GSS_C_NO_CREDENTIAL) {
924 if (ctx->defaultCred == GSS_C_NO_CREDENTIAL) {
925 major = gssEapAcquireCred(minor,
934 if (GSS_ERROR(major))
938 cred = ctx->defaultCred;
941 GSSEAP_MUTEX_LOCK(&cred->mutex);
943 if ((cred->flags & CRED_FLAG_INITIATE) == 0) {
944 major = GSS_S_NO_CRED;
945 *minor = GSSEAP_CRED_USAGE_MISMATCH;
949 if (initialContextToken) {
950 major = initBegin(minor, cred, ctx, target_name, mech_type,
951 req_flags, time_req, input_chan_bindings);
952 if (GSS_ERROR(major))
956 major = gssEapSmStep(minor,
967 sizeof(eapGssInitiatorSm) / sizeof(eapGssInitiatorSm[0]));
968 if (GSS_ERROR(major))
971 if (actual_mech_type != NULL) {
974 tmpMajor = gssEapCanonicalizeOid(&tmpMinor, ctx->mechanismUsed, 0, actual_mech_type);
975 if (GSS_ERROR(tmpMajor)) {
981 if (ret_flags != NULL)
982 *ret_flags = ctx->gssFlags;
983 if (time_rec != NULL)
984 gssEapContextTime(&tmpMinor, ctx, time_rec);
986 assert(CTX_IS_ESTABLISHED(ctx) || major == GSS_S_CONTINUE_NEEDED);
989 if (cred != GSS_C_NO_CREDENTIAL)
990 GSSEAP_MUTEX_UNLOCK(&cred->mutex);
991 GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
993 if (GSS_ERROR(major))
994 gssEapReleaseContext(&tmpMinor, context_handle);