2 * Copyright (c) 2011, JANET(UK)
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6 * modification, are permitted provided that the following conditions
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29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * Establish a security context on the acceptor (server). These functions
35 * wrap around libradsec and (thus) talk to a RADIUS server or proxy.
38 #include "gssapiP_eap.h"
40 #ifdef GSSEAP_ENABLE_REAUTH
42 eapGssSmAcceptGssReauth(OM_uint32 *minor,
49 gss_channel_bindings_t chanBindings,
50 gss_buffer_t inputToken,
51 gss_buffer_t outputToken,
56 * Mark an acceptor context as ready for cryptographic operations
59 acceptReadyEap(OM_uint32 *minor, gss_ctx_id_t ctx, gss_cred_id_t cred)
61 OM_uint32 major, tmpMinor;
63 gss_buffer_desc nameBuf = GSS_C_EMPTY_BUFFER;
65 /* Cache encryption type derived from selected mechanism OID */
66 major = gssEapOidToEnctype(minor, ctx->mechanismUsed,
67 &ctx->encryptionType);
71 gssEapReleaseName(&tmpMinor, &ctx->initiatorName);
73 major = gssEapRadiusGetRawAvp(minor, ctx->acceptorCtx.vps,
74 PW_USER_NAME, 0, &vp);
75 if (major == GSS_S_COMPLETE) {
76 nameBuf.length = vp->length;
77 nameBuf.value = vp->vp_strvalue;
79 ctx->gssFlags |= GSS_C_ANON_FLAG;
82 major = gssEapImportName(minor, &nameBuf,
83 (ctx->gssFlags & GSS_C_ANON_FLAG) ?
84 GSS_C_NT_ANONYMOUS : GSS_C_NT_USER_NAME,
89 major = gssEapRadiusGetRawAvp(minor, ctx->acceptorCtx.vps,
90 PW_MS_MPPE_SEND_KEY, VENDORPEC_MS, &vp);
91 if (GSS_ERROR(major)) {
92 *minor = GSSEAP_KEY_UNAVAILABLE;
93 return GSS_S_UNAVAILABLE;
96 major = gssEapDeriveRfc3961Key(minor,
101 if (GSS_ERROR(major))
104 major = rfc3961ChecksumTypeForKey(minor, &ctx->rfc3961Key,
106 if (GSS_ERROR(major))
109 major = sequenceInit(minor,
110 &ctx->seqState, ctx->recvSeq,
111 ((ctx->gssFlags & GSS_C_REPLAY_FLAG) != 0),
112 ((ctx->gssFlags & GSS_C_SEQUENCE_FLAG) != 0),
114 if (GSS_ERROR(major))
117 major = gssEapCreateAttrContext(minor, cred, ctx,
118 &ctx->initiatorName->attrCtx,
120 if (GSS_ERROR(major))
124 return GSS_S_COMPLETE;
128 eapGssSmAcceptAcceptorName(OM_uint32 *minor,
129 gss_cred_id_t cred GSSEAP_UNUSED,
131 gss_name_t target GSSEAP_UNUSED,
132 gss_OID mech GSSEAP_UNUSED,
133 OM_uint32 reqFlags GSSEAP_UNUSED,
134 OM_uint32 timeReq GSSEAP_UNUSED,
135 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
136 gss_buffer_t inputToken GSSEAP_UNUSED,
137 gss_buffer_t outputToken,
138 OM_uint32 *smFlags GSSEAP_UNUSED)
142 /* XXX TODO import and validate name from inputToken */
144 if (ctx->acceptorName != GSS_C_NO_NAME) {
145 /* Send desired target name to acceptor */
146 major = gssEapDisplayName(minor, ctx->acceptorName,
148 if (GSS_ERROR(major))
152 return GSS_S_CONTINUE_NEEDED;
157 eapGssSmAcceptVendorInfo(OM_uint32 *minor,
158 gss_cred_id_t cred GSSEAP_UNUSED,
159 gss_ctx_id_t ctx GSSEAP_UNUSED,
160 gss_name_t target GSSEAP_UNUSED,
161 gss_OID mech GSSEAP_UNUSED,
162 OM_uint32 reqFlags GSSEAP_UNUSED,
163 OM_uint32 timeReq GSSEAP_UNUSED,
164 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
165 gss_buffer_t inputToken,
166 gss_buffer_t outputToken GSSEAP_UNUSED,
167 OM_uint32 *smFlags GSSEAP_UNUSED)
169 fprintf(stderr, "GSS-EAP: vendor: %.*s\n",
170 (int)inputToken->length, (char *)inputToken->value);
173 return GSS_S_CONTINUE_NEEDED;
179 * Emit a identity EAP request to force the initiator (peer) to identify
183 eapGssSmAcceptIdentity(OM_uint32 *minor,
186 gss_name_t target GSSEAP_UNUSED,
187 gss_OID mech GSSEAP_UNUSED,
188 OM_uint32 reqFlags GSSEAP_UNUSED,
189 OM_uint32 timeReq GSSEAP_UNUSED,
190 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
191 gss_buffer_t inputToken,
192 gss_buffer_t outputToken,
196 struct wpabuf *reqData;
197 gss_buffer_desc pktBuffer;
199 if (!gssEapCredAvailable(cred, ctx->mechanismUsed)) {
200 *minor = GSSEAP_CRED_MECH_MISMATCH;
201 return GSS_S_BAD_MECH;
204 if (inputToken != GSS_C_NO_BUFFER && inputToken->length != 0) {
205 *minor = GSSEAP_WRONG_SIZE;
206 return GSS_S_DEFECTIVE_TOKEN;
209 reqData = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_IDENTITY, 0,
210 EAP_CODE_REQUEST, 0);
211 if (reqData == NULL) {
213 return GSS_S_FAILURE;
216 pktBuffer.length = wpabuf_len(reqData);
217 pktBuffer.value = (void *)wpabuf_head(reqData);
219 major = duplicateBuffer(minor, &pktBuffer, outputToken);
220 if (GSS_ERROR(major))
223 wpabuf_free(reqData);
225 GSSEAP_SM_TRANSITION_NEXT(ctx);
228 *smFlags |= SM_FLAG_OUTPUT_TOKEN_CRITICAL;
230 return GSS_S_CONTINUE_NEEDED;
234 * Returns TRUE if the input token contains an EAP identity response.
237 isIdentityResponseP(gss_buffer_t inputToken)
239 struct wpabuf respData;
241 wpabuf_set(&respData, inputToken->value, inputToken->length);
243 return (eap_get_type(&respData) == EAP_TYPE_IDENTITY);
247 * Save the asserted initiator identity from the EAP identity response.
250 importInitiatorIdentity(OM_uint32 *minor,
252 gss_buffer_t inputToken)
255 struct wpabuf respData;
256 const unsigned char *pos;
258 gss_buffer_desc nameBuf;
260 wpabuf_set(&respData, inputToken->value, inputToken->length);
262 pos = eap_hdr_validate(EAP_VENDOR_IETF, EAP_TYPE_IDENTITY,
265 *minor = GSSEAP_PEER_BAD_MESSAGE;
266 return GSS_S_DEFECTIVE_TOKEN;
269 nameBuf.value = (void *)pos;
270 nameBuf.length = len;
272 gssEapReleaseName(&tmpMinor, &ctx->initiatorName);
274 return gssEapImportName(minor, &nameBuf, GSS_C_NT_USER_NAME,
275 &ctx->initiatorName);
279 * Pass the asserted initiator identity to the authentication server.
282 setInitiatorIdentity(OM_uint32 *minor,
286 OM_uint32 major, tmpMinor;
287 gss_buffer_desc nameBuf;
290 * We should have got an EAP identity response, but if we didn't, then
291 * we will just avoid sending User-Name. Note that radsecproxy requires
292 * User-Name to be sent on every request (presumably so it can remain
295 if (ctx->initiatorName != GSS_C_NO_NAME) {
296 major = gssEapDisplayName(minor, ctx->initiatorName, &nameBuf, NULL);
297 if (GSS_ERROR(major))
300 major = gssEapRadiusAddAvp(minor, vps, PW_USER_NAME, 0, &nameBuf);
301 if (GSS_ERROR(major))
304 gss_release_buffer(&tmpMinor, &nameBuf);
308 return GSS_S_COMPLETE;
312 * Pass the asserted acceptor identity to the authentication server.
315 setAcceptorIdentity(OM_uint32 *minor,
320 gss_buffer_desc nameBuf;
321 krb5_context krbContext = NULL;
322 krb5_principal krbPrinc;
323 struct rs_context *rc = ctx->acceptorCtx.radContext;
327 if (ctx->acceptorName == GSS_C_NO_NAME) {
329 return GSS_S_COMPLETE;
332 if ((ctx->acceptorName->flags & NAME_FLAG_SERVICE) == 0) {
333 *minor = GSSEAP_BAD_SERVICE_NAME;
334 return GSS_S_BAD_NAME;
337 GSSEAP_KRB_INIT(&krbContext);
339 krbPrinc = ctx->acceptorName->krbPrincipal;
340 assert(krbPrinc != NULL);
341 assert(KRB_PRINC_LENGTH(krbPrinc) >= 2);
343 /* Acceptor-Service-Name */
344 krbPrincComponentToGssBuffer(krbPrinc, 0, &nameBuf);
346 major = gssEapRadiusAddAvp(minor, vps,
347 PW_GSS_ACCEPTOR_SERVICE_NAME,
350 if (GSS_ERROR(major))
353 /* Acceptor-Host-Name */
354 krbPrincComponentToGssBuffer(krbPrinc, 1, &nameBuf);
356 major = gssEapRadiusAddAvp(minor, vps,
357 PW_GSS_ACCEPTOR_HOST_NAME,
360 if (GSS_ERROR(major))
363 if (KRB_PRINC_LENGTH(krbPrinc) > 2) {
364 /* Acceptor-Service-Specific */
365 krb5_principal_data ssiPrinc = *krbPrinc;
368 KRB_PRINC_LENGTH(&ssiPrinc) -= 2;
369 KRB_PRINC_NAME(&ssiPrinc) += 2;
371 *minor = krb5_unparse_name_flags(krbContext, &ssiPrinc,
372 KRB5_PRINCIPAL_UNPARSE_NO_REALM, &ssi);
374 return GSS_S_FAILURE;
377 nameBuf.length = strlen(ssi);
379 major = gssEapRadiusAddAvp(minor, vps,
380 PW_GSS_ACCEPTOR_SERVICE_SPECIFIC,
384 if (GSS_ERROR(major)) {
385 krb5_free_unparsed_name(krbContext, ssi);
388 krb5_free_unparsed_name(krbContext, ssi);
391 krbPrincRealmToGssBuffer(krbPrinc, &nameBuf);
392 if (nameBuf.length != 0) {
393 /* Acceptor-Realm-Name */
394 major = gssEapRadiusAddAvp(minor, vps,
395 PW_GSS_ACCEPTOR_REALM_NAME,
398 if (GSS_ERROR(major))
403 return GSS_S_COMPLETE;
407 * Allocate a RadSec handle
410 createRadiusHandle(OM_uint32 *minor,
414 struct gss_eap_acceptor_ctx *actx = &ctx->acceptorCtx;
415 const char *configFile = RS_CONFIG_FILE;
416 const char *configStanza = "gss-eap";
417 struct rs_alloc_scheme ralloc;
418 struct rs_error *err;
420 assert(actx->radContext == NULL);
421 assert(actx->radConn == NULL);
423 if (rs_context_create(&actx->radContext, RS_DICT_FILE) != 0) {
424 *minor = GSSEAP_RADSEC_CONTEXT_FAILURE;
425 return GSS_S_FAILURE;
428 if (cred->radiusConfigFile != NULL)
429 configFile = cred->radiusConfigFile;
430 if (cred->radiusConfigStanza != NULL)
431 configStanza = cred->radiusConfigStanza;
433 ralloc.calloc = GSSEAP_CALLOC;
434 ralloc.malloc = GSSEAP_MALLOC;
435 ralloc.free = GSSEAP_FREE;
436 ralloc.realloc = GSSEAP_REALLOC;
438 rs_context_set_alloc_scheme(actx->radContext, &ralloc);
440 if (rs_context_read_config(actx->radContext, configFile) != 0) {
441 err = rs_err_ctx_pop(actx->radContext);
445 if (rs_conn_create(actx->radContext, &actx->radConn, configStanza) != 0) {
446 err = rs_err_conn_pop(actx->radConn);
450 if (actx->radServer != NULL) {
451 if (rs_conn_select_peer(actx->radConn, actx->radServer) != 0) {
452 err = rs_err_conn_pop(actx->radConn);
458 return GSS_S_COMPLETE;
461 return gssEapRadiusMapError(minor, err);
465 * Process a EAP response from the initiator.
468 eapGssSmAcceptAuthenticate(OM_uint32 *minor,
471 gss_name_t target GSSEAP_UNUSED,
472 gss_OID mech GSSEAP_UNUSED,
473 OM_uint32 reqFlags GSSEAP_UNUSED,
474 OM_uint32 timeReq GSSEAP_UNUSED,
475 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
476 gss_buffer_t inputToken,
477 gss_buffer_t outputToken,
480 OM_uint32 major, tmpMinor;
481 struct rs_connection *rconn;
482 struct rs_request *request = NULL;
483 struct rs_packet *req = NULL, *resp = NULL;
484 struct radius_packet *frreq, *frresp;
486 if (ctx->acceptorCtx.radContext == NULL) {
487 /* May be NULL from an imported partial context */
488 major = createRadiusHandle(minor, cred, ctx);
489 if (GSS_ERROR(major))
493 if (isIdentityResponseP(inputToken)) {
494 major = importInitiatorIdentity(minor, ctx, inputToken);
495 if (GSS_ERROR(major))
499 rconn = ctx->acceptorCtx.radConn;
501 if (rs_packet_create_authn_request(rconn, &req, NULL, NULL) != 0) {
502 major = gssEapRadiusMapError(minor, rs_err_conn_pop(rconn));
505 frreq = rs_packet_frpkt(req);
507 major = setInitiatorIdentity(minor, ctx, &frreq->vps);
508 if (GSS_ERROR(major))
511 major = setAcceptorIdentity(minor, ctx, &frreq->vps);
512 if (GSS_ERROR(major))
515 major = gssEapRadiusAddAvp(minor, &frreq->vps,
516 PW_EAP_MESSAGE, 0, inputToken);
517 if (GSS_ERROR(major))
520 if (ctx->acceptorCtx.state.length != 0) {
521 major = gssEapRadiusAddAvp(minor, &frreq->vps, PW_STATE, 0,
522 &ctx->acceptorCtx.state);
523 if (GSS_ERROR(major))
526 gss_release_buffer(&tmpMinor, &ctx->acceptorCtx.state);
529 if (rs_request_create(rconn, &request) != 0) {
530 major = gssEapRadiusMapError(minor, rs_err_conn_pop(rconn));
534 rs_request_add_reqpkt(request, req);
537 if (rs_request_send(request, &resp) != 0) {
538 major = gssEapRadiusMapError(minor, rs_err_conn_pop(rconn));
542 assert(resp != NULL);
544 frresp = rs_packet_frpkt(resp);
545 switch (frresp->code) {
546 case PW_ACCESS_CHALLENGE:
547 case PW_AUTHENTICATION_ACK:
549 case PW_AUTHENTICATION_REJECT:
550 *minor = GSSEAP_RADIUS_AUTH_FAILURE;
551 major = GSS_S_DEFECTIVE_CREDENTIAL;
555 *minor = GSSEAP_UNKNOWN_RADIUS_CODE;
556 major = GSS_S_FAILURE;
561 major = gssEapRadiusGetAvp(minor, frresp->vps, PW_EAP_MESSAGE, 0,
563 if (major == GSS_S_UNAVAILABLE && frresp->code == PW_ACCESS_CHALLENGE) {
564 *minor = GSSEAP_MISSING_EAP_REQUEST;
565 major = GSS_S_DEFECTIVE_TOKEN;
567 } else if (GSS_ERROR(major))
570 if (frresp->code == PW_ACCESS_CHALLENGE) {
571 major = gssEapRadiusGetAvp(minor, frresp->vps, PW_STATE, 0,
572 &ctx->acceptorCtx.state, TRUE);
573 if (GSS_ERROR(major) && *minor != GSSEAP_NO_SUCH_ATTR)
576 ctx->acceptorCtx.vps = frresp->vps;
579 major = acceptReadyEap(minor, ctx, cred);
580 if (GSS_ERROR(major))
583 GSSEAP_SM_TRANSITION_NEXT(ctx);
586 major = GSS_S_CONTINUE_NEEDED;
588 *smFlags |= SM_FLAG_OUTPUT_TOKEN_CRITICAL;
592 rs_request_destroy(request);
594 rs_packet_destroy(req);
596 rs_packet_destroy(resp);
597 if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_INITIATOR_EXTS) {
598 assert(major == GSS_S_CONTINUE_NEEDED);
600 rs_conn_destroy(ctx->acceptorCtx.radConn);
601 ctx->acceptorCtx.radConn = NULL;
608 eapGssSmAcceptGssChannelBindings(OM_uint32 *minor,
609 gss_cred_id_t cred 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,
616 gss_buffer_t inputToken,
617 gss_buffer_t outputToken GSSEAP_UNUSED,
618 OM_uint32 *smFlags GSSEAP_UNUSED)
620 OM_uint32 major, tmpMinor;
621 gss_iov_buffer_desc iov[2];
623 iov[0].type = GSS_IOV_BUFFER_TYPE_DATA | GSS_IOV_BUFFER_FLAG_ALLOCATE;
624 iov[0].buffer.length = 0;
625 iov[0].buffer.value = NULL;
627 iov[1].type = GSS_IOV_BUFFER_TYPE_STREAM;
628 iov[1].buffer = *inputToken;
630 major = gssEapUnwrapOrVerifyMIC(minor, ctx, NULL, NULL,
631 iov, 2, TOK_TYPE_WRAP);
632 if (GSS_ERROR(major))
635 if (chanBindings != GSS_C_NO_CHANNEL_BINDINGS &&
636 !bufferEqual(&iov[0].buffer, &chanBindings->application_data)) {
637 major = GSS_S_BAD_BINDINGS;
638 *minor = GSSEAP_BINDINGS_MISMATCH;
640 major = GSS_S_CONTINUE_NEEDED;
644 gss_release_buffer(&tmpMinor, &iov[0].buffer);
649 #ifdef GSSEAP_ENABLE_REAUTH
651 eapGssSmAcceptReauthCreds(OM_uint32 *minor,
654 gss_name_t target GSSEAP_UNUSED,
655 gss_OID mech GSSEAP_UNUSED,
656 OM_uint32 reqFlags GSSEAP_UNUSED,
657 OM_uint32 timeReq GSSEAP_UNUSED,
658 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
659 gss_buffer_t inputToken GSSEAP_UNUSED,
660 gss_buffer_t outputToken,
661 OM_uint32 *smFlags GSSEAP_UNUSED)
666 * If we're built with fast reauthentication enabled, then
667 * fabricate a ticket from the initiator to ourselves.
669 major = gssEapMakeReauthCreds(minor, ctx, cred, outputToken);
670 if (major == GSS_S_UNAVAILABLE)
671 major = GSS_S_COMPLETE;
672 if (major == GSS_S_COMPLETE)
673 major = GSS_S_CONTINUE_NEEDED;
680 eapGssSmAcceptCompleteInitiatorExts(OM_uint32 *minor,
681 gss_cred_id_t cred GSSEAP_UNUSED,
683 gss_name_t target GSSEAP_UNUSED,
684 gss_OID mech GSSEAP_UNUSED,
685 OM_uint32 reqFlags GSSEAP_UNUSED,
686 OM_uint32 timeReq GSSEAP_UNUSED,
687 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
688 gss_buffer_t inputToken GSSEAP_UNUSED,
689 gss_buffer_t outputToken GSSEAP_UNUSED,
690 OM_uint32 *smFlags GSSEAP_UNUSED)
692 GSSEAP_SM_TRANSITION_NEXT(ctx);
696 return GSS_S_CONTINUE_NEEDED;
700 eapGssSmAcceptCompleteAcceptorExts(OM_uint32 *minor,
701 gss_cred_id_t cred GSSEAP_UNUSED,
703 gss_name_t target GSSEAP_UNUSED,
704 gss_OID mech GSSEAP_UNUSED,
705 OM_uint32 reqFlags GSSEAP_UNUSED,
706 OM_uint32 timeReq GSSEAP_UNUSED,
707 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
708 gss_buffer_t inputToken GSSEAP_UNUSED,
709 gss_buffer_t outputToken GSSEAP_UNUSED,
712 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_ESTABLISHED);
715 *smFlags |= SM_FLAG_FORCE_SEND_TOKEN;
717 return GSS_S_COMPLETE;
720 static struct gss_eap_sm eapGssAcceptorSm[] = {
722 ITOK_TYPE_ACCEPTOR_NAME_REQ,
723 ITOK_TYPE_ACCEPTOR_NAME_RESP,
724 GSSEAP_STATE_INITIAL,
726 eapGssSmAcceptAcceptorName
730 ITOK_TYPE_VENDOR_INFO,
732 GSSEAP_STATE_INITIAL,
734 eapGssSmAcceptVendorInfo,
737 #ifdef GSSEAP_ENABLE_REAUTH
739 ITOK_TYPE_REAUTH_REQ,
740 ITOK_TYPE_REAUTH_RESP,
741 GSSEAP_STATE_INITIAL,
743 eapGssSmAcceptGssReauth,
749 GSSEAP_STATE_INITIAL,
750 SM_ITOK_FLAG_REQUIRED,
751 eapGssSmAcceptIdentity,
756 GSSEAP_STATE_AUTHENTICATE,
757 SM_ITOK_FLAG_REQUIRED,
758 eapGssSmAcceptAuthenticate
761 ITOK_TYPE_GSS_CHANNEL_BINDINGS,
763 GSSEAP_STATE_INITIATOR_EXTS,
764 SM_ITOK_FLAG_REQUIRED,
765 eapGssSmAcceptGssChannelBindings,
770 GSSEAP_STATE_INITIATOR_EXTS,
772 eapGssSmAcceptCompleteInitiatorExts,
774 #ifdef GSSEAP_ENABLE_REAUTH
777 ITOK_TYPE_REAUTH_CREDS,
778 GSSEAP_STATE_ACCEPTOR_EXTS,
780 eapGssSmAcceptReauthCreds,
786 GSSEAP_STATE_ACCEPTOR_EXTS,
788 eapGssSmAcceptCompleteAcceptorExts
793 gss_accept_sec_context(OM_uint32 *minor,
794 gss_ctx_id_t *context_handle,
796 gss_buffer_t input_token,
797 gss_channel_bindings_t input_chan_bindings,
798 gss_name_t *src_name,
800 gss_buffer_t output_token,
801 OM_uint32 *ret_flags,
803 gss_cred_id_t *delegated_cred_handle)
805 OM_uint32 major, tmpMinor;
806 gss_ctx_id_t ctx = *context_handle;
810 output_token->length = 0;
811 output_token->value = NULL;
813 if (src_name != NULL)
814 *src_name = GSS_C_NO_NAME;
816 if (input_token == GSS_C_NO_BUFFER || input_token->length == 0) {
817 *minor = GSSEAP_TOK_TRUNC;
818 return GSS_S_DEFECTIVE_TOKEN;
821 if (ctx == GSS_C_NO_CONTEXT) {
822 major = gssEapAllocContext(minor, &ctx);
823 if (GSS_ERROR(major))
826 *context_handle = ctx;
829 GSSEAP_MUTEX_LOCK(&ctx->mutex);
831 if (cred == GSS_C_NO_CREDENTIAL) {
832 if (ctx->defaultCred == GSS_C_NO_CREDENTIAL) {
833 major = gssEapAcquireCred(minor,
842 if (GSS_ERROR(major))
846 cred = ctx->defaultCred;
849 GSSEAP_MUTEX_LOCK(&cred->mutex);
851 if (cred->name != GSS_C_NO_NAME) {
852 major = gssEapDuplicateName(minor, cred->name, &ctx->acceptorName);
853 if (GSS_ERROR(major))
857 major = gssEapSmStep(minor,
868 sizeof(eapGssAcceptorSm) / sizeof(eapGssAcceptorSm[0]));
869 if (GSS_ERROR(major))
872 if (mech_type != NULL) {
873 if (!gssEapInternalizeOid(ctx->mechanismUsed, mech_type))
874 duplicateOid(&tmpMinor, ctx->mechanismUsed, mech_type);
876 if (ret_flags != NULL)
877 *ret_flags = ctx->gssFlags;
878 if (delegated_cred_handle != NULL)
879 *delegated_cred_handle = GSS_C_NO_CREDENTIAL;
881 if (major == GSS_S_COMPLETE) {
882 if (src_name != NULL && ctx->initiatorName != GSS_C_NO_NAME) {
883 major = gssEapDuplicateName(&tmpMinor, ctx->initiatorName, src_name);
884 if (GSS_ERROR(major))
887 if (time_rec != NULL) {
888 major = gssEapContextTime(&tmpMinor, ctx, time_rec);
889 if (GSS_ERROR(major))
894 assert(CTX_IS_ESTABLISHED(ctx) || major == GSS_S_CONTINUE_NEEDED);
897 if (cred != GSS_C_NO_CREDENTIAL)
898 GSSEAP_MUTEX_UNLOCK(&cred->mutex);
899 GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
901 if (GSS_ERROR(major))
902 gssEapReleaseContext(&tmpMinor, context_handle);
907 #ifdef GSSEAP_ENABLE_REAUTH
909 acceptReadyKrb(OM_uint32 *minor,
912 const gss_name_t initiator,
918 major = gssEapGlueToMechName(minor, ctx, initiator, &ctx->initiatorName);
919 if (GSS_ERROR(major))
922 major = gssEapReauthComplete(minor, ctx, cred, mech, timeRec);
923 if (GSS_ERROR(major))
927 return GSS_S_COMPLETE;
931 eapGssSmAcceptGssReauth(OM_uint32 *minor,
934 gss_name_t target GSSEAP_UNUSED,
936 OM_uint32 reqFlags GSSEAP_UNUSED,
937 OM_uint32 timeReq GSSEAP_UNUSED,
938 gss_channel_bindings_t chanBindings,
939 gss_buffer_t inputToken,
940 gss_buffer_t outputToken,
943 OM_uint32 major, tmpMinor;
944 gss_name_t krbInitiator = GSS_C_NO_NAME;
945 OM_uint32 gssFlags, timeRec = GSS_C_INDEFINITE;
948 * If we're built with fast reauthentication support, it's valid
949 * for an initiator to send a GSS reauthentication token as its
950 * initial context token, causing us to short-circuit the state
951 * machine and process Kerberos GSS messages instead.
954 ctx->flags |= CTX_FLAG_KRB_REAUTH;
956 major = gssAcceptSecContext(minor,
967 if (major == GSS_S_COMPLETE) {
968 major = acceptReadyKrb(minor, ctx, cred,
969 krbInitiator, mech, timeRec);
970 if (major == GSS_S_COMPLETE) {
971 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_ESTABLISHED);
973 ctx->gssFlags = gssFlags;
974 } else if (GSS_ERROR(major) &&
975 (*smFlags & SM_FLAG_INPUT_TOKEN_CRITICAL) == 0) {
976 /* pretend reauthentication attempt never happened */
977 gssDeleteSecContext(&tmpMinor, &ctx->kerberosCtx, GSS_C_NO_BUFFER);
978 ctx->flags &= ~(CTX_FLAG_KRB_REAUTH);
979 GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_INITIAL);
980 major = GSS_S_CONTINUE_NEEDED;
983 gssReleaseName(&tmpMinor, &krbInitiator);
987 #endif /* GSSEAP_ENABLE_REAUTH */