2 * Copyright (c) 2011, JANET(UK)
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34 * Fast reauthentication support.
37 #include "gssapiP_eap.h"
42 * Fast reauthentication support for EAP GSS.
46 krb5_encrypt_tkt_part(krb5_context, const krb5_keyblock *, krb5_ticket *);
49 encode_krb5_ticket(const krb5_ticket *rep, krb5_data **code);
52 gssDisplayName(OM_uint32 *minor,
58 gssImportName(OM_uint32 *minor,
63 static krb5_error_code
64 getAcceptorKey(krb5_context krbContext,
67 krb5_principal *princ,
71 krb5_keytab keytab = NULL;
72 krb5_keytab_entry ktent = { 0 };
73 krb5_kt_cursor cursor;
76 memset(key, 0, sizeof(*key));
77 memset(&cursor, 0, sizeof(cursor));
79 code = krb5_kt_default(krbContext, &keytab);
83 if (cred != GSS_C_NO_CREDENTIAL && cred->name != GSS_C_NO_NAME) {
84 code = krb5_kt_get_entry(krbContext, keytab,
85 cred->name->krbPrincipal, 0,
86 ctx->encryptionType, &ktent);
91 * It's not clear that looking encrypting the ticket in the
92 * requested EAP enctype provides any value.
94 code = krb5_kt_start_seq_get(krbContext, keytab, &cursor);
98 while ((code = krb5_kt_next_entry(krbContext, keytab,
99 &ktent, &cursor)) == 0) {
100 if (KRB_KEY_TYPE(KRB_KT_ENT_KEYBLOCK(&ktent)) == ctx->encryptionType)
103 KRB_KT_ENT_FREE(krbContext, &ktent);
108 *princ = ktent.principal;
109 *key = *KRB_KT_ENT_KEYBLOCK(&ktent);
113 if (cred == GSS_C_NO_CREDENTIAL || cred->name == GSS_C_NO_NAME)
114 krb5_kt_end_seq_get(krbContext, keytab, &cursor);
115 krb5_kt_close(krbContext, keytab);
117 KRB_KT_ENT_FREE(krbContext, &ktent);
123 freezeAttrContext(OM_uint32 *minor,
124 gss_name_t initiatorName,
125 krb5_const_principal acceptorPrinc,
126 krb5_keyblock *session,
127 #ifdef HAVE_HEIMDAL_VERSION
128 krb5_authdata *kdcIssuedAuthData
130 krb5_authdata ***kdcIssuedAuthData
134 OM_uint32 major, tmpMinor;
135 krb5_error_code code;
136 krb5_context krbContext;
137 gss_buffer_desc attrBuf = GSS_C_EMPTY_BUFFER;
138 #ifdef HAVE_HEIMDAL_VERSION
139 krb5_authdata authDataBuf, *authData = &authDataBuf;
140 AuthorizationDataElement authDatum = { 0 };
142 krb5_authdata *authData[2], authDatum = { 0 };
145 memset(kdcIssuedAuthData, 0, sizeof(*kdcIssuedAuthData));
147 GSSEAP_KRB_INIT(&krbContext);
149 major = gssEapExportAttrContext(minor, initiatorName, &attrBuf);
150 if (GSS_ERROR(major))
153 authDatum.ad_type = KRB5_AUTHDATA_RADIUS_AVP;
154 #ifdef HAVE_HEIMDAL_VERSION
155 authDatum.ad_data.length = attrBuf.length;
156 authDatum.ad_data.data = attrBuf.value;
158 authData->val = &authDatum;
160 authDatum.length = attrBuf.length;
161 authDatum.contents = attrBuf.value;
162 authData[0] = &authDatum;
166 code = krbMakeAuthDataKdcIssued(krbContext, session, acceptorPrinc,
167 authData, kdcIssuedAuthData);
169 major = GSS_S_FAILURE;
172 major = GSS_S_COMPLETE;
175 gss_release_buffer(&tmpMinor, &attrBuf);
181 * Fabricate a ticket to ourselves given a GSS EAP context.
184 gssEapMakeReauthCreds(OM_uint32 *minor,
187 gss_buffer_t credBuf)
189 OM_uint32 major = GSS_S_COMPLETE;
190 krb5_error_code code;
191 krb5_context krbContext = NULL;
192 krb5_keyblock session = { 0 }, acceptorKey = { 0 };
193 krb5_principal server = NULL;
194 #ifdef HAVE_HEIMDAL_VERSION
196 EncTicketPart enc_part;
197 AuthorizationData authData = { 0 };
198 krb5_crypto krbCrypto = NULL;
199 krb5_data ticketData = { 0 };
200 krb5_data encPartData = { 0 };
204 krb5_enc_tkt_part enc_part;
205 krb5_data *ticketData = NULL;
207 krb5_data credsData = { 0 };
208 krb5_creds creds = { 0 };
209 krb5_auth_context authContext = NULL;
211 memset(&ticket, 0, sizeof(ticket));
212 memset(&enc_part, 0, sizeof(enc_part));
215 credBuf->value = NULL;
217 GSSEAP_KRB_INIT(&krbContext);
219 code = getAcceptorKey(krbContext, ctx, cred, &server, &acceptorKey);
222 return GSS_S_UNAVAILABLE;
226 * Generate a random session key to place in the ticket and
227 * sign the "KDC-Issued" authorization data element.
229 #ifdef HAVE_HEIMDAL_VERSION
230 ticket.realm = server->realm;
231 ticket.sname = server->name;
233 code = krb5_generate_random_keyblock(krbContext, ctx->encryptionType,
238 enc_part.flags.initial = 1;
239 enc_part.key = session;
240 enc_part.crealm = ctx->initiatorName->krbPrincipal->realm;
241 enc_part.cname = ctx->initiatorName->krbPrincipal->name;
242 enc_part.authtime = time(NULL);
243 enc_part.starttime = &enc_part.authtime;
244 enc_part.endtime = (ctx->expiryTime != 0)
245 ? ctx->expiryTime : KRB_TIME_FOREVER;
246 enc_part.renew_till = NULL;
247 enc_part.authorization_data = &authData;
249 major = freezeAttrContext(minor, ctx->initiatorName, server,
250 &session, &authData);
251 if (GSS_ERROR(major))
254 ASN1_MALLOC_ENCODE(EncTicketPart, encPartData.data, encPartData.length,
255 &enc_part, &len, code);
259 code = krb5_crypto_init(krbContext, &acceptorKey, 0, &krbCrypto);
263 code = krb5_encrypt_EncryptedData(krbContext,
273 ASN1_MALLOC_ENCODE(Ticket, ticketData.data, ticketData.length,
274 &ticket, &len, code);
278 ticket.server = server;
280 code = krb5_c_make_random_key(krbContext, ctx->encryptionType,
285 enc_part.flags = TKT_FLG_INITIAL;
286 enc_part.session = &session;
287 enc_part.client = ctx->initiatorName->krbPrincipal;
288 enc_part.times.authtime = time(NULL);
289 enc_part.times.starttime = enc_part.times.authtime;
290 enc_part.times.endtime = (ctx->expiryTime != 0)
293 enc_part.times.renew_till = 0;
295 major = freezeAttrContext(minor, ctx->initiatorName, server,
296 &session, &enc_part.authorization_data);
297 if (GSS_ERROR(major))
300 ticket.enc_part2 = &enc_part;
302 code = krb5_encrypt_tkt_part(krbContext, &acceptorKey, &ticket);
306 code = encode_krb5_ticket(&ticket, &ticketData);
309 #endif /* HAVE_HEIMDAL_VERSION */
311 creds.client = ctx->initiatorName->krbPrincipal;
312 creds.server = server;
313 #ifdef HAVE_HEIMDAL_VERSION
314 creds.session = session;
315 creds.times.authtime = enc_part.authtime;
316 creds.times.starttime = *enc_part.starttime;
317 creds.times.endtime = enc_part.endtime;
318 creds.times.renew_till = 0;
319 creds.flags.b = enc_part.flags;
320 creds.ticket = ticketData;
321 creds.authdata = authData;
323 creds.keyblock = session;
324 creds.times = enc_part.times;
325 creds.ticket_flags = enc_part.flags;
326 creds.ticket = *ticketData;
327 creds.authdata = enc_part.authorization_data;
330 code = krb5_auth_con_init(krbContext, &authContext);
334 code = krb5_auth_con_setflags(krbContext, authContext, 0);
338 code = krb5_auth_con_setsendsubkey(krbContext, authContext,
343 code = krbMakeCred(krbContext, authContext, &creds, &credsData);
347 krbDataToGssBuffer(&credsData, credBuf);
350 #ifdef HAVE_HEIMDAL_VERSION
351 if (krbCrypto != NULL)
352 krb5_crypto_destroy(krbContext, krbCrypto);
353 free_AuthorizationData(&authData);
354 free_EncryptedData(&ticket.enc_part);
355 krb5_data_free(&ticketData);
356 krb5_data_free(&encPartData);
358 krb5_free_authdata(krbContext, enc_part.authorization_data);
359 if (ticket.enc_part.ciphertext.data != NULL)
360 GSSEAP_FREE(ticket.enc_part.ciphertext.data);
361 krb5_free_data(krbContext, ticketData);
363 krb5_free_keyblock_contents(krbContext, &session);
364 krb5_free_principal(krbContext, server);
365 krb5_free_keyblock_contents(krbContext, &acceptorKey);
366 krb5_auth_con_free(krbContext, authContext);
368 if (major == GSS_S_COMPLETE) {
370 major = (code != 0) ? GSS_S_FAILURE : GSS_S_COMPLETE;
377 isTicketGrantingServiceP(krb5_context krbContext GSSEAP_UNUSED,
378 krb5_const_principal principal)
380 if (KRB_PRINC_LENGTH(principal) == 2 &&
381 #ifdef HAVE_HEIMDAL_VERSION
382 strcmp(KRB_PRINC_NAME(principal)[0], "krbtgt") == 0
384 krb5_princ_component(krbContext, principal, 0)->length == 6 &&
385 memcmp(krb5_princ_component(krbContext,
386 principal, 0)->data, "krbtgt", 6) == 0
395 * Returns TRUE if the configuration variable reauth_use_ccache is
396 * set in krb5.conf for the eap_gss application and the client realm.
399 reauthUseCredsCache(krb5_context krbContext,
400 krb5_principal principal)
404 /* if reauth_use_ccache, use default credentials cache if ticket is for us */
405 krb5_appdefault_boolean(krbContext, "eap_gss",
406 KRB_PRINC_REALM(principal),
407 "reauth_use_ccache", 0, &reauthUseCCache);
409 return reauthUseCCache;
413 * Look in default credentials cache for reauthentication credentials,
417 getDefaultReauthCredentials(OM_uint32 *minor,
423 OM_uint32 major = GSS_S_CRED_UNAVAIL;
424 krb5_context krbContext = NULL;
425 krb5_error_code code = 0;
426 krb5_ccache ccache = NULL;
427 krb5_creds match = { 0 };
428 krb5_creds creds = { 0 };
430 GSSEAP_KRB_INIT(&krbContext);
432 assert(cred != GSS_C_NO_CREDENTIAL);
433 assert(target != GSS_C_NO_NAME);
435 if (cred->name == GSS_C_NO_NAME ||
436 !reauthUseCredsCache(krbContext, cred->name->krbPrincipal))
439 match.client = cred->name->krbPrincipal;
440 match.server = target->krbPrincipal;
441 if (timeReq != 0 && timeReq != GSS_C_INDEFINITE)
442 match.times.endtime = now + timeReq;
444 code = krb5_cc_default(krbContext, &ccache);
448 code = krb5_cc_retrieve_cred(krbContext, ccache, 0, &match, &creds);
452 cred->flags |= CRED_FLAG_DEFAULT_CCACHE;
453 cred->krbCredCache = ccache;
456 major = gss_krb5_import_cred(minor, cred->krbCredCache, NULL, NULL,
460 if (major == GSS_S_CRED_UNAVAIL)
464 krb5_cc_close(krbContext, ccache);
465 krb5_free_cred_contents(krbContext, &creds);
471 * Returns TRUE if the credential handle's reauth credentials are
472 * valid or if we can use the default credentials cache. Credentials
473 * handle must be locked.
476 gssEapCanReauthP(gss_cred_id_t cred,
480 time_t now, expiryReq;
483 assert(cred != GSS_C_NO_CREDENTIAL);
487 if (timeReq != GSS_C_INDEFINITE)
488 expiryReq += timeReq;
490 if (cred->krbCredCache != NULL && cred->expiryTime > expiryReq)
493 if (getDefaultReauthCredentials(&minor, cred, target,
494 now, timeReq) == GSS_S_COMPLETE)
501 * Store re-authentication (Kerberos) credentials in a credential handle.
502 * Credentials handle must be locked.
505 gssEapStoreReauthCreds(OM_uint32 *minor,
508 gss_buffer_t credBuf)
510 OM_uint32 major = GSS_S_COMPLETE;
511 krb5_error_code code;
512 krb5_context krbContext = NULL;
513 krb5_auth_context authContext = NULL;
514 krb5_data credData = { 0 };
515 krb5_creds **creds = NULL;
516 krb5_principal canonPrinc;
517 krb5_principal ccPrinc = NULL;
520 if (credBuf->length == 0 || cred == GSS_C_NO_CREDENTIAL)
521 return GSS_S_COMPLETE;
523 GSSEAP_KRB_INIT(&krbContext);
525 code = krb5_auth_con_init(krbContext, &authContext);
529 code = krb5_auth_con_setflags(krbContext, authContext, 0);
533 code = krb5_auth_con_setrecvsubkey(krbContext, authContext,
538 gssBufferToKrbData(credBuf, &credData);
540 code = krb5_rd_cred(krbContext, authContext, &credData, &creds, NULL);
544 if (creds == NULL || creds[0] == NULL)
547 code = krb5_copy_principal(krbContext, creds[0]->client, &canonPrinc);
551 krb5_free_principal(krbContext, cred->name->krbPrincipal);
552 cred->name->krbPrincipal = canonPrinc;
554 if (creds[0]->times.endtime == KRB_TIME_FOREVER)
555 cred->expiryTime = 0;
557 cred->expiryTime = creds[0]->times.endtime;
559 if (cred->krbCredCache == NULL) {
560 if (reauthUseCredsCache(krbContext, creds[0]->client) &&
561 krb5_cc_default(krbContext, &cred->krbCredCache) == 0)
562 cred->flags |= CRED_FLAG_DEFAULT_CCACHE;
565 * If we already have an associated credentials cache, possibly from
566 * the last time we stored a reauthentication credential, then we
567 * need to clear it out and release the associated GSS credential.
569 if (cred->flags & CRED_FLAG_DEFAULT_CCACHE) {
570 krb5_cc_remove_cred(krbContext, cred->krbCredCache, 0, creds[0]);
572 krb5_cc_destroy(krbContext, cred->krbCredCache);
573 cred->krbCredCache = NULL;
575 gssReleaseCred(minor, &cred->krbCred);
578 if (cred->krbCredCache == NULL) {
579 code = krb5_cc_new_unique(krbContext, "MEMORY", NULL, &cred->krbCredCache);
584 if ((cred->flags & CRED_FLAG_DEFAULT_CCACHE) == 0 ||
585 krb5_cc_get_principal(krbContext, cred->krbCredCache, &ccPrinc) != 0) {
586 code = krb5_cc_initialize(krbContext, cred->krbCredCache,
592 for (i = 0; creds[i] != NULL; i++) {
593 krb5_creds kcred = *(creds[i]);
596 * Swap in the acceptor name the client asked for so
597 * get_credentials() works. We're making the assumption that
598 * any service tickets returned are for us. We'll need to
599 * reflect some more on whether that is a safe assumption.
601 if (!isTicketGrantingServiceP(krbContext, kcred.server))
602 kcred.server = ctx->acceptorName->krbPrincipal;
604 code = krb5_cc_store_cred(krbContext, cred->krbCredCache, &kcred);
609 major = gss_krb5_import_cred(minor, cred->krbCredCache, NULL, NULL,
611 if (GSS_ERROR(major))
617 krb5_free_principal(krbContext, ccPrinc);
618 krb5_auth_con_free(krbContext, authContext);
620 for (i = 0; creds[i] != NULL; i++)
621 krb5_free_creds(krbContext, creds[i]);
624 if (major == GSS_S_COMPLETE)
625 major = *minor ? GSS_S_FAILURE : GSS_S_COMPLETE;
630 #ifndef HAVE_HEIMDAL_VERSION
631 static gss_buffer_desc radiusAvpKrbAttr = {
632 sizeof("urn:authdata-radius-avp") - 1, "urn:authdata-radius-avp"
637 * Unfortunately extracting an AD-KDCIssued authorization data element
638 * is pretty implementation-dependent. It's not possible to verify the
639 * signature ourselves because the ticket session key is not exposed
640 * outside GSS. In an ideal world, all AD-KDCIssued elements would be
641 * verified by the Kerberos library and authentication would fail if
642 * verification failed. We're not quite there yet and as a result have
643 * to go through some hoops to get this to work. The alternative would
644 * be to sign the authorization data with our long-term key, but it
645 * seems a pity to compromise the design because of current implementation
648 * (Specifically, the hoops involve a libkrb5 authorisation data plugin
649 * that exposes the verified and serialised attribute context through
650 * the Kerberos GSS mechanism's naming extensions API.)
653 defrostAttrContext(OM_uint32 *minor,
654 #ifdef HAVE_HEIMDAL_VERSION
655 gss_ctx_id_t glueContext,
661 OM_uint32 major, tmpMinor;
662 #ifdef HAVE_HEIMDAL_VERSION
663 gss_OID_desc oid = { 0 };
664 gss_buffer_set_t authData = GSS_C_NO_BUFFER_SET;
666 gss_buffer_desc authData = GSS_C_EMPTY_BUFFER;
667 gss_buffer_desc authDataDisplay = GSS_C_EMPTY_BUFFER;
669 int authenticated, complete;
672 #ifdef HAVE_HEIMDAL_VERSION
673 major = composeOid(minor,
674 GSS_KRB5_EXTRACT_AUTHZ_DATA_FROM_SEC_CONTEXT_X->elements,
675 GSS_KRB5_EXTRACT_AUTHZ_DATA_FROM_SEC_CONTEXT_X->length,
676 KRB5_AUTHDATA_RADIUS_AVP, &oid);
677 if (GSS_ERROR(major))
680 /* XXX we are assuming that this verifies AD-KDCIssued signature */
681 major = gssInquireSecContextByOid(minor, glueContext,
683 if (major == GSS_S_COMPLETE) {
684 if (authData == GSS_C_NO_BUFFER_SET || authData->count != 1)
685 major = GSS_S_FAILURE;
687 major = gssEapImportAttrContext(minor, authData->elements, mechName);
688 } else if (major == GSS_S_FAILURE && *minor == ENOENT) {
689 /* This is the equivalent of GSS_S_UNAVAILABLE for MIT attr APIs */
691 major = GSS_S_COMPLETE;
694 gss_release_buffer_set(&tmpMinor, &authData);
695 GSSEAP_FREE(oid.elements);
697 major = gssGetNameAttribute(minor, glueName, &radiusAvpKrbAttr,
698 &authenticated, &complete,
699 &authData, &authDataDisplay, &more);
700 if (major == GSS_S_COMPLETE) {
701 if (authenticated == 0)
702 major = GSS_S_BAD_NAME;
704 major = gssEapImportAttrContext(minor, &authData, mechName);
705 } else if (major == GSS_S_UNAVAILABLE) {
706 major = GSS_S_COMPLETE;
709 gss_release_buffer(&tmpMinor, &authData);
710 gss_release_buffer(&tmpMinor, &authDataDisplay);
711 #endif /* HAVE_HEIMDAL_VERSION */
717 * Convert a mechanism glue to an EAP mechanism name by displaying and
718 * importing it. This also handles the RADIUS attributes.
721 gssEapGlueToMechName(OM_uint32 *minor,
724 gss_name_t *pMechName)
726 OM_uint32 major, tmpMinor;
727 gss_buffer_desc nameBuf = GSS_C_EMPTY_BUFFER;
729 *pMechName = GSS_C_NO_NAME;
731 major = gssDisplayName(minor, glueName, &nameBuf, NULL);
732 if (GSS_ERROR(major))
735 major = gssEapImportName(minor, &nameBuf, GSS_C_NT_USER_NAME,
736 ctx->mechanismUsed, pMechName);
737 if (GSS_ERROR(major))
740 major = defrostAttrContext(minor,
741 #ifdef HAVE_HEIMDAL_VERSION
747 if (GSS_ERROR(major))
751 if (GSS_ERROR(major)) {
752 gssReleaseName(&tmpMinor, pMechName);
753 *pMechName = GSS_C_NO_NAME;
756 gss_release_buffer(&tmpMinor, &nameBuf);
762 * Convert an EAP mechanism name to a mechanism glue name by displaying
766 gssEapMechToGlueName(OM_uint32 *minor,
768 gss_name_t *pGlueName)
770 OM_uint32 major, tmpMinor;
771 gss_buffer_desc nameBuf = GSS_C_EMPTY_BUFFER;
773 *pGlueName = GSS_C_NO_NAME;
775 major = gssEapDisplayName(minor, mechName, &nameBuf, NULL);
776 if (GSS_ERROR(major))
779 major = gssImportName(minor, &nameBuf, GSS_C_NT_USER_NAME,
781 if (GSS_ERROR(major))
785 gss_release_buffer(&tmpMinor, &nameBuf);
791 * Suck out the analgous elements of a Kerberos GSS context into an EAP
792 * one so that the application doesn't know the difference.
795 gssEapReauthComplete(OM_uint32 *minor,
797 gss_cred_id_t cred GSSEAP_UNUSED,
801 OM_uint32 major, tmpMinor;
802 gss_buffer_set_t keyData = GSS_C_NO_BUFFER_SET;
803 krb5_context krbContext = NULL;
804 #ifdef HAVE_HEIMDAL_VERSION
805 krb5_storage *sp = NULL;
808 GSSEAP_KRB_INIT(&krbContext);
810 if (!oidEqual(mech, gss_mech_krb5)) {
811 major = GSS_S_BAD_MECH;
815 /* Get the raw subsession key and encryption type */
816 #ifdef HAVE_HEIMDAL_VERSION
817 #define KRB_GSS_SUBKEY_COUNT 1 /* encoded session key */
818 major = gssInquireSecContextByOid(minor, ctx->kerberosCtx,
819 GSS_KRB5_GET_SUBKEY_X, &keyData);
821 #define KRB_GSS_SUBKEY_COUNT 2 /* raw session key, enctype OID */
822 major = gssInquireSecContextByOid(minor, ctx->kerberosCtx,
823 GSS_C_INQ_SSPI_SESSION_KEY, &keyData);
825 if (GSS_ERROR(major))
828 if (keyData == GSS_C_NO_BUFFER_SET || keyData->count < KRB_GSS_SUBKEY_COUNT) {
829 *minor = GSSEAP_KEY_UNAVAILABLE;
830 major = GSS_S_FAILURE;
834 #ifdef HAVE_HEIMDAL_VERSION
835 sp = krb5_storage_from_mem(keyData->elements[0].value,
836 keyData->elements[0].length);
839 major = GSS_S_FAILURE;
843 *minor = krb5_ret_keyblock(sp, &ctx->rfc3961Key);
845 major = GSS_S_FAILURE;
853 oid.length = keyData->elements[1].length;
854 oid.elements = keyData->elements[1].value;
856 /* GSS_KRB5_SESSION_KEY_ENCTYPE_OID */
857 major = decomposeOid(minor,
858 "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02\x04",
860 if (GSS_ERROR(major))
863 ctx->encryptionType = suffix;
869 KRB_KEY_LENGTH(&key) = keyData->elements[0].length;
870 KRB_KEY_DATA(&key) = keyData->elements[0].value;
871 KRB_KEY_TYPE(&key) = ctx->encryptionType;
873 *minor = krb5_copy_keyblock_contents(krbContext,
874 &key, &ctx->rfc3961Key);
876 major = GSS_S_FAILURE;
880 #endif /* HAVE_HEIMDAL_VERSION */
882 major = rfc3961ChecksumTypeForKey(minor, &ctx->rfc3961Key,
884 if (GSS_ERROR(major))
887 if (timeRec != GSS_C_INDEFINITE)
888 ctx->expiryTime = time(NULL) + timeRec;
890 /* Initialize our sequence state */
891 major = sequenceInit(minor,
892 &ctx->seqState, ctx->recvSeq,
893 ((ctx->gssFlags & GSS_C_REPLAY_FLAG) != 0),
894 ((ctx->gssFlags & GSS_C_SEQUENCE_FLAG) != 0),
896 if (GSS_ERROR(major))
899 major = GSS_S_COMPLETE;
902 #ifdef HAVE_HEIMDAL_VERSION
904 krb5_storage_free(sp);
906 gss_release_buffer_set(&tmpMinor, &keyData);
912 * The remainder of this file consists of wrappers so we can call into the
913 * mechanism glue without calling ourselves.
916 (*gssInitSecContextNext)(OM_uint32 *,
923 gss_channel_bindings_t,
931 (*gssAcceptSecContextNext)(OM_uint32 *,
935 gss_channel_bindings_t,
944 (*gssReleaseCredNext)(OM_uint32 *, gss_cred_id_t *);
947 (*gssReleaseNameNext)(OM_uint32 *, gss_name_t *);
950 (*gssInquireSecContextByOidNext)(OM_uint32 *,
956 (*gssDeleteSecContextNext)(OM_uint32 *,
961 (*gssDisplayNameNext)(OM_uint32 *,
967 (*gssImportNameNext)(OM_uint32 *,
973 (*gssStoreCredNext)(OM_uint32 *,
983 (*gssGetNameAttributeNext)(OM_uint32 *,
992 #define NEXT_SYMBOL(local, global) do { \
993 ((local) = dlsym(RTLD_NEXT, (global))); \
994 if ((local) == NULL) { \
995 *minor = GSSEAP_NO_MECHGLUE_SYMBOL; \
996 major = GSS_S_UNAVAILABLE; \
1002 gssEapReauthInitialize(OM_uint32 *minor)
1004 OM_uint32 major = GSS_S_COMPLETE;
1006 NEXT_SYMBOL(gssInitSecContextNext, "gss_init_sec_context");
1007 NEXT_SYMBOL(gssAcceptSecContextNext, "gss_accept_sec_context");
1008 NEXT_SYMBOL(gssReleaseCredNext, "gss_release_cred");
1009 NEXT_SYMBOL(gssReleaseNameNext, "gss_release_name");
1010 NEXT_SYMBOL(gssInquireSecContextByOidNext, "gss_inquire_sec_context_by_oid");
1011 NEXT_SYMBOL(gssDeleteSecContextNext, "gss_delete_sec_context");
1012 NEXT_SYMBOL(gssDisplayNameNext, "gss_display_name");
1013 NEXT_SYMBOL(gssImportNameNext, "gss_import_name");
1014 NEXT_SYMBOL(gssStoreCredNext, "gss_store_cred");
1015 #ifndef HAVE_HEIMDAL_VERSION
1016 NEXT_SYMBOL(gssGetNameAttributeNext, "gss_get_name_attribute");
1023 gssInitSecContext(OM_uint32 *minor,
1025 gss_ctx_id_t *context_handle,
1026 gss_name_t target_name,
1028 OM_uint32 req_flags,
1030 gss_channel_bindings_t input_chan_bindings,
1031 gss_buffer_t input_token,
1032 gss_OID *actual_mech_type,
1033 gss_buffer_t output_token,
1034 OM_uint32 *ret_flags,
1035 OM_uint32 *time_rec)
1037 if (gssInitSecContextNext == NULL) {
1038 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1039 return GSS_S_UNAVAILABLE;
1042 return gssInitSecContextNext(minor, cred, context_handle,
1043 target_name, mech_type, req_flags,
1044 time_req, input_chan_bindings,
1045 input_token, actual_mech_type,
1046 output_token, ret_flags, time_rec);
1050 gssAcceptSecContext(OM_uint32 *minor,
1051 gss_ctx_id_t *context_handle,
1053 gss_buffer_t input_token,
1054 gss_channel_bindings_t input_chan_bindings,
1055 gss_name_t *src_name,
1057 gss_buffer_t output_token,
1058 OM_uint32 *ret_flags,
1059 OM_uint32 *time_rec,
1060 gss_cred_id_t *delegated_cred_handle)
1062 if (gssAcceptSecContextNext == NULL) {
1063 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1064 return GSS_S_UNAVAILABLE;
1067 return gssAcceptSecContextNext(minor, context_handle, cred,
1068 input_token, input_chan_bindings,
1069 src_name, mech_type, output_token,
1070 ret_flags, time_rec, delegated_cred_handle);
1074 gssReleaseCred(OM_uint32 *minor,
1075 gss_cred_id_t *cred_handle)
1077 if (gssReleaseCredNext == NULL) {
1078 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1079 return GSS_S_UNAVAILABLE;
1082 return gssReleaseCredNext(minor, cred_handle);
1086 gssReleaseName(OM_uint32 *minor,
1089 if (gssReleaseName == NULL) {
1090 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1091 return GSS_S_UNAVAILABLE;
1094 return gssReleaseNameNext(minor, name);
1098 gssDeleteSecContext(OM_uint32 *minor,
1099 gss_ctx_id_t *context_handle,
1100 gss_buffer_t output_token)
1102 if (gssDeleteSecContextNext == NULL) {
1103 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1104 return GSS_S_UNAVAILABLE;
1107 return gssDeleteSecContextNext(minor, context_handle, output_token);
1111 gssDisplayName(OM_uint32 *minor,
1113 gss_buffer_t buffer,
1116 if (gssDisplayNameNext == NULL) {
1117 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1118 return GSS_S_UNAVAILABLE;
1121 return gssDisplayNameNext(minor, name, buffer, name_type);
1125 gssImportName(OM_uint32 *minor,
1126 gss_buffer_t buffer,
1130 if (gssImportNameNext == NULL) {
1131 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1132 return GSS_S_UNAVAILABLE;
1135 return gssImportNameNext(minor, buffer, name_type, name);
1139 gssInquireSecContextByOid(OM_uint32 *minor,
1140 const gss_ctx_id_t context_handle,
1141 const gss_OID desired_object,
1142 gss_buffer_set_t *data_set)
1144 if (gssInquireSecContextByOidNext == NULL) {
1145 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1146 return GSS_S_UNAVAILABLE;
1149 return gssInquireSecContextByOidNext(minor, context_handle,
1150 desired_object, data_set);
1154 gssStoreCred(OM_uint32 *minor,
1155 const gss_cred_id_t input_cred_handle,
1156 gss_cred_usage_t input_usage,
1157 const gss_OID desired_mech,
1158 OM_uint32 overwrite_cred,
1159 OM_uint32 default_cred,
1160 gss_OID_set *elements_stored,
1161 gss_cred_usage_t *cred_usage_stored)
1163 if (gssStoreCredNext == NULL) {
1164 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1165 return GSS_S_UNAVAILABLE;
1168 return gssStoreCredNext(minor, input_cred_handle, input_usage,
1169 desired_mech, overwrite_cred, default_cred,
1170 elements_stored, cred_usage_stored);
1174 gssGetNameAttribute(OM_uint32 *minor,
1180 gss_buffer_t display_value,
1183 if (gssGetNameAttributeNext == NULL) {
1184 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1185 return GSS_S_UNAVAILABLE;
1188 return gssGetNameAttributeNext(minor, name, attr, authenticated, complete,
1189 value, display_value, more);