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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 *authdata
130 krb5_authdata ***authdata
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 GSSEAP_KRB_INIT(&krbContext);
147 major = gssEapExportAttrContext(minor, initiatorName, &attrBuf);
148 if (GSS_ERROR(major))
151 authDatum.ad_type = KRB5_AUTHDATA_RADIUS_AVP;
152 #ifdef HAVE_HEIMDAL_VERSION
153 authDatum.ad_data.length = attrBuf.length;
154 authDatum.ad_data.data = attrBuf.value;
156 authData->val = &authDatum;
158 authDatum.length = attrBuf.length;
159 authDatum.contents = attrBuf.value;
160 authData[0] = &authDatum;
164 code = krbMakeAuthDataKdcIssued(krbContext, session, acceptorPrinc,
167 major = GSS_S_FAILURE;
170 major = GSS_S_COMPLETE;
173 gss_release_buffer(&tmpMinor, &attrBuf);
179 * Fabricate a ticket to ourselves given a GSS EAP context.
182 gssEapMakeReauthCreds(OM_uint32 *minor,
185 gss_buffer_t credBuf)
187 OM_uint32 major = GSS_S_COMPLETE;
188 krb5_error_code code;
189 krb5_context krbContext = NULL;
190 krb5_keyblock session = { 0 }, acceptorKey = { 0 };
191 krb5_principal server = NULL;
192 #ifdef HAVE_HEIMDAL_VERSION
194 EncTicketPart enc_part;
195 AuthorizationData authData = { 0 };
196 krb5_crypto krbCrypto = NULL;
197 unsigned char *buf = NULL;
198 size_t buf_size, len;
201 krb5_enc_tkt_part enc_part;
203 krb5_data *ticketData = NULL, credsData = { 0 };
204 krb5_creds creds = { 0 };
205 krb5_auth_context authContext = NULL;
207 memset(&ticket, 0, sizeof(ticket));
208 memset(&enc_part, 0, sizeof(enc_part));
211 credBuf->value = NULL;
213 GSSEAP_KRB_INIT(&krbContext);
215 code = getAcceptorKey(krbContext, ctx, cred, &server, &acceptorKey);
216 if (code == KRB5_KT_NOTFOUND) {
218 return GSS_S_UNAVAILABLE;
219 } else if (code != 0)
222 #ifdef HAVE_HEIMDAL_VERSION
223 ticket.realm = server->realm;
224 ticket.sname = server->name;
226 ticket.server = server;
230 * Generate a random session key to place in the ticket and
231 * sign the "KDC-Issued" authorization data element.
233 code = krb5_c_make_random_key(krbContext, ctx->encryptionType,
238 #ifdef HAVE_HEIMDAL_VERSION
239 enc_part.flags.initial = 1;
240 enc_part.key = session;
241 enc_part.crealm = ctx->initiatorName->krbPrincipal->realm;
242 enc_part.cname = ctx->initiatorName->krbPrincipal->name;
243 enc_part.authtime = time(NULL);
244 enc_part.starttime = &enc_part.authtime;
245 enc_part.endtime = (ctx->expiryTime != 0)
246 ? ctx->expiryTime : KRB_TIME_FOREVER;
247 enc_part.renew_till = NULL;
248 enc_part.authorization_data = &authData;
250 major = freezeAttrContext(minor, ctx->initiatorName, server,
251 &session, &authData);
252 if (GSS_ERROR(major))
255 ASN1_MALLOC_ENCODE(EncTicketPart, buf, buf_size, &enc_part, &len, code);
259 code = krb5_crypto_init(krbContext, &acceptorKey, 0, &krbCrypto);
263 code = krb5_encrypt_EncryptedData(krbContext,
276 ASN1_MALLOC_ENCODE(Ticket, buf, buf_size, &ticket, &len, code);
280 enc_part.flags = TKT_FLG_INITIAL;
281 enc_part.session = &session;
282 enc_part.client = ctx->initiatorName->krbPrincipal;
283 enc_part.times.authtime = time(NULL);
284 enc_part.times.starttime = enc_part.times.authtime;
285 enc_part.times.endtime = (ctx->expiryTime != 0)
288 enc_part.times.renew_till = 0;
290 major = freezeAttrContext(minor, ctx->initiatorName, server,
291 &session, &enc_part.authorization_data);
292 if (GSS_ERROR(major))
295 ticket.enc_part2 = &enc_part;
297 code = krb5_encrypt_tkt_part(krbContext, &acceptorKey, &ticket);
301 code = encode_krb5_ticket(&ticket, &ticketData);
304 #endif /* HAVE_HEIMDAL_VERSION */
306 creds.client = ctx->initiatorName->krbPrincipal;
307 creds.server = server;
308 #ifdef HAVE_HEIMDAL_VERSION
309 creds.session = session;
310 creds.times.authtime = enc_part.authtime;
311 creds.times.starttime = *enc_part.starttime;
312 creds.times.endtime = enc_part.endtime;
313 creds.times.renew_till = 0;
314 creds.flags.b = enc_part.flags;
315 creds.ticket = *ticketData;
316 creds.authdata = authData;
318 creds.keyblock = session;
319 creds.times = enc_part.times;
320 creds.ticket_flags = enc_part.flags;
321 creds.ticket = *ticketData;
322 creds.authdata = enc_part.authorization_data;
325 code = krb5_auth_con_init(krbContext, &authContext);
329 code = krb5_auth_con_setflags(krbContext, authContext, 0);
333 code = krb5_auth_con_setsendsubkey(krbContext, authContext,
338 code = krbMakeCred(krbContext, authContext, &creds, &credsData);
342 krbDataToGssBuffer(&credsData, credBuf);
345 #ifdef HAVE_HEIMDAL_VERSION
346 if (krbCrypto != NULL)
347 krb5_crypto_destroy(krbContext, krbCrypto);
350 free_AuthorizationData(&authData);
351 free_EncryptedData(&ticket.enc_part);
353 krb5_free_authdata(krbContext, enc_part.authorization_data);
354 if (ticket.enc_part.ciphertext.data != NULL)
355 GSSEAP_FREE(ticket.enc_part.ciphertext.data);
357 krb5_free_keyblock_contents(krbContext, &session);
358 krb5_free_principal(krbContext, server);
359 krb5_free_keyblock_contents(krbContext, &acceptorKey);
360 krb5_free_data(krbContext, ticketData);
361 krb5_auth_con_free(krbContext, authContext);
363 if (major == GSS_S_COMPLETE) {
365 major = (code != 0) ? GSS_S_FAILURE : GSS_S_COMPLETE;
372 isTicketGrantingServiceP(krb5_context krbContext,
373 krb5_const_principal principal)
375 if (KRB_PRINC_LENGTH(principal) == 2 &&
376 #ifdef HAVE_HEIMDAL_VERSION
377 strcmp(KRB_PRINC_NAME(principal)[0], "krbtgt") == 0
379 krb5_princ_component(krbContext, principal, 0)->length == 6 &&
380 memcmp(krb5_princ_component(krbContext,
381 principal, 0)->data, "krbtgt", 6) == 0
390 * Returns TRUE if the configuration variable reauth_use_ccache is
391 * set in krb5.conf for the eap_gss application and the client realm.
394 reauthUseCredsCache(krb5_context krbContext,
395 krb5_principal principal)
399 /* if reauth_use_ccache, use default credentials cache if ticket is for us */
400 krb5_appdefault_boolean(krbContext, "eap_gss",
401 KRB_PRINC_REALM(principal),
402 "reauth_use_ccache", 0, &reauthUseCCache);
404 return reauthUseCCache;
408 * Look in default credentials cache for reauthentication credentials,
412 getDefaultReauthCredentials(OM_uint32 *minor,
418 OM_uint32 major = GSS_S_CRED_UNAVAIL;
419 krb5_context krbContext = NULL;
420 krb5_error_code code = 0;
421 krb5_ccache ccache = NULL;
422 krb5_creds match = { 0 };
423 krb5_creds creds = { 0 };
425 GSSEAP_KRB_INIT(&krbContext);
427 assert(cred != GSS_C_NO_CREDENTIAL);
428 assert(target != GSS_C_NO_NAME);
430 if (cred->name == GSS_C_NO_NAME ||
431 !reauthUseCredsCache(krbContext, cred->name->krbPrincipal))
434 match.client = cred->name->krbPrincipal;
435 match.server = target->krbPrincipal;
436 if (timeReq != 0 && timeReq != GSS_C_INDEFINITE)
437 match.times.endtime = now + timeReq;
439 code = krb5_cc_default(krbContext, &ccache);
443 code = krb5_cc_retrieve_cred(krbContext, ccache, 0, &match, &creds);
447 cred->flags |= CRED_FLAG_DEFAULT_CCACHE;
448 cred->krbCredCache = ccache;
451 major = gss_krb5_import_cred(minor, cred->krbCredCache, NULL, NULL,
455 if (major == GSS_S_CRED_UNAVAIL)
459 krb5_cc_close(krbContext, ccache);
460 krb5_free_cred_contents(krbContext, &creds);
466 * Returns TRUE if the credential handle's reauth credentials are
467 * valid or if we can use the default credentials cache. Credentials
468 * handle must be locked.
471 gssEapCanReauthP(gss_cred_id_t cred,
475 time_t now, expiryReq;
478 assert(cred != GSS_C_NO_CREDENTIAL);
482 if (timeReq != GSS_C_INDEFINITE)
483 expiryReq += timeReq;
485 if (cred->krbCredCache != NULL && cred->expiryTime > expiryReq)
488 if (getDefaultReauthCredentials(&minor, cred, target,
489 now, timeReq) == GSS_S_COMPLETE)
496 * Store re-authentication (Kerberos) credentials in a credential handle.
497 * Credentials handle must be locked.
500 gssEapStoreReauthCreds(OM_uint32 *minor,
503 gss_buffer_t credBuf)
505 OM_uint32 major = GSS_S_COMPLETE;
506 krb5_error_code code;
507 krb5_context krbContext = NULL;
508 krb5_auth_context authContext = NULL;
509 krb5_data credData = { 0 };
510 krb5_creds **creds = NULL;
511 krb5_principal canonPrinc;
512 krb5_principal ccPrinc = NULL;
515 if (credBuf->length == 0 || cred == GSS_C_NO_CREDENTIAL)
516 return GSS_S_COMPLETE;
518 GSSEAP_KRB_INIT(&krbContext);
520 code = krb5_auth_con_init(krbContext, &authContext);
524 code = krb5_auth_con_setflags(krbContext, authContext, 0);
528 code = krb5_auth_con_setrecvsubkey(krbContext, authContext,
533 gssBufferToKrbData(credBuf, &credData);
535 code = krb5_rd_cred(krbContext, authContext, &credData, &creds, NULL);
539 if (creds == NULL || creds[0] == NULL)
542 code = krb5_copy_principal(krbContext, creds[0]->client, &canonPrinc);
546 krb5_free_principal(krbContext, cred->name->krbPrincipal);
547 cred->name->krbPrincipal = canonPrinc;
549 if (creds[0]->times.endtime == KRB_TIME_FOREVER)
550 cred->expiryTime = 0;
552 cred->expiryTime = creds[0]->times.endtime;
554 if (cred->krbCredCache == NULL) {
555 if (reauthUseCredsCache(krbContext, creds[0]->client) &&
556 krb5_cc_default(krbContext, &cred->krbCredCache) == 0)
557 cred->flags |= CRED_FLAG_DEFAULT_CCACHE;
560 * If we already have an associated credentials cache, possibly from
561 * the last time we stored a reauthentication credential, then we
562 * need to clear it out and release the associated GSS credential.
564 if (cred->flags & CRED_FLAG_DEFAULT_CCACHE) {
565 krb5_cc_remove_cred(krbContext, cred->krbCredCache, 0, creds[0]);
567 krb5_cc_destroy(krbContext, cred->krbCredCache);
568 cred->krbCredCache = NULL;
570 gssReleaseCred(minor, &cred->krbCred);
573 if (cred->krbCredCache == NULL) {
574 code = krb5_cc_new_unique(krbContext, "MEMORY", NULL, &cred->krbCredCache);
579 if ((cred->flags & CRED_FLAG_DEFAULT_CCACHE) == 0 ||
580 krb5_cc_get_principal(krbContext, cred->krbCredCache, &ccPrinc) != 0) {
581 code = krb5_cc_initialize(krbContext, cred->krbCredCache,
587 for (i = 0; creds[i] != NULL; i++) {
588 krb5_creds kcred = *(creds[i]);
591 * Swap in the acceptor name the client asked for so
592 * get_credentials() works. We're making the assumption that
593 * any service tickets returned are for us. We'll need to
594 * reflect some more on whether that is a safe assumption.
596 if (!isTicketGrantingServiceP(krbContext, kcred.server))
597 kcred.server = ctx->acceptorName->krbPrincipal;
599 code = krb5_cc_store_cred(krbContext, cred->krbCredCache, &kcred);
604 major = gss_krb5_import_cred(minor, cred->krbCredCache, NULL, NULL,
606 if (GSS_ERROR(major))
612 krb5_free_principal(krbContext, ccPrinc);
613 krb5_auth_con_free(krbContext, authContext);
615 for (i = 0; creds[i] != NULL; i++)
616 krb5_free_creds(krbContext, creds[i]);
619 if (major == GSS_S_COMPLETE)
620 major = *minor ? GSS_S_FAILURE : GSS_S_COMPLETE;
625 #ifndef HAVE_HEIMDAL_VERSION
626 static gss_buffer_desc radiusAvpKrbAttr = {
627 sizeof("urn:authdata-radius-avp") - 1, "urn:authdata-radius-avp"
632 * Unfortunately extracting an AD-KDCIssued authorization data element
633 * is pretty implementation-dependent. It's not possible to verify the
634 * signature ourselves because the ticket session key is not exposed
635 * outside GSS. In an ideal world, all AD-KDCIssued elements would be
636 * verified by the Kerberos library and authentication would fail if
637 * verification failed. We're not quite there yet and as a result have
638 * to go through some hoops to get this to work. The alternative would
639 * be to sign the authorization data with our long-term key, but it
640 * seems a pity to compromise the design because of current implementation
643 * (Specifically, the hoops involve a libkrb5 authorisation data plugin
644 * that exposes the verified and serialised attribute context through
645 * the Kerberos GSS mechanism's naming extensions API.)
648 defrostAttrContext(OM_uint32 *minor,
649 gss_ctx_id_t glueContext,
653 OM_uint32 major, tmpMinor;
654 #ifdef HAVE_HEIMDAL_VERSION
655 gss_OID_desc oid = { 0 };
656 gss_buffer_set_t authData = GSS_C_NO_BUFFER_SET;
658 gss_buffer_desc authData = GSS_C_EMPTY_BUFFER;
659 gss_buffer_desc authDataDisplay = GSS_C_EMPTY_BUFFER;
661 int authenticated, complete;
664 #ifdef HAVE_HEIMDAL_VERSION
665 major = composeOid(minor,
666 GSS_KRB5_EXTRACT_AUTHZ_DATA_FROM_SEC_CONTEXT_X->elements,
667 GSS_KRB5_EXTRACT_AUTHZ_DATA_FROM_SEC_CONTEXT_X->length,
668 KRB5_AUTHDATA_RADIUS_AVP, &oid);
669 if (GSS_ERROR(major))
672 /* XXX we are assuming that this verifies AD-KDCIssued signature */
673 major = gssInquireSecContextByOid(minor, glueContext,
675 if (major == GSS_S_COMPLETE) {
676 if (authData == GSS_C_NO_BUFFER_SET || authData->count != 1)
677 major = GSS_S_FAILURE;
679 major = gssEapImportAttrContext(minor, authData->elements, mechName);
680 } else if (major == GSS_S_FAILURE && *minor == ENOENT) {
681 /* This is the equivalent of GSS_S_UNAVAILABLE for MIT attr APIs */
683 major = GSS_S_COMPLETE;
686 gss_release_buffer_set(&tmpMinor, &authData);
687 GSSEAP_FREE(oid.elements);
689 major = gssGetNameAttribute(minor, glueName, &radiusAvpKrbAttr,
690 &authenticated, &complete,
691 &authData, &authDataDisplay, &more);
692 if (major == GSS_S_COMPLETE) {
693 if (authenticated == 0)
694 major = GSS_S_BAD_NAME;
696 major = gssEapImportAttrContext(minor, &authData, mechName);
697 } else if (major == GSS_S_UNAVAILABLE) {
698 major = GSS_S_COMPLETE;
701 gss_release_buffer(&tmpMinor, &authData);
702 gss_release_buffer(&tmpMinor, &authDataDisplay);
703 #endif /* HAVE_HEIMDAL_VERSION */
709 * Convert a mechanism glue to an EAP mechanism name by displaying and
710 * importing it. This also handles the RADIUS attributes.
713 gssEapGlueToMechName(OM_uint32 *minor,
714 gss_ctx_id_t glueContext,
716 gss_name_t *pMechName)
718 OM_uint32 major, tmpMinor;
719 gss_buffer_desc nameBuf = GSS_C_EMPTY_BUFFER;
721 *pMechName = GSS_C_NO_NAME;
723 major = gssDisplayName(minor, glueName, &nameBuf, NULL);
724 if (GSS_ERROR(major))
727 major = gssEapImportName(minor, &nameBuf, GSS_C_NT_USER_NAME,
729 if (GSS_ERROR(major))
732 major = defrostAttrContext(minor, glueContext, glueName, *pMechName);
733 if (GSS_ERROR(major))
737 if (GSS_ERROR(major)) {
738 gssReleaseName(&tmpMinor, pMechName);
739 *pMechName = GSS_C_NO_NAME;
742 gss_release_buffer(&tmpMinor, &nameBuf);
748 * Convert an EAP mechanism name to a mechanism glue name by displaying
752 gssEapMechToGlueName(OM_uint32 *minor,
754 gss_name_t *pGlueName)
756 OM_uint32 major, tmpMinor;
757 gss_buffer_desc nameBuf = GSS_C_EMPTY_BUFFER;
759 *pGlueName = GSS_C_NO_NAME;
761 major = gssEapDisplayName(minor, mechName, &nameBuf, NULL);
762 if (GSS_ERROR(major))
765 major = gssImportName(minor, &nameBuf, GSS_C_NT_USER_NAME,
767 if (GSS_ERROR(major))
771 gss_release_buffer(&tmpMinor, &nameBuf);
777 * Suck out the analgous elements of a Kerberos GSS context into an EAP
778 * one so that the application doesn't know the difference.
781 gssEapReauthComplete(OM_uint32 *minor,
787 OM_uint32 major, tmpMinor;
788 gss_buffer_set_t keyData = GSS_C_NO_BUFFER_SET;
789 krb5_context krbContext = NULL;
790 #ifdef HAVE_HEIMDAL_VERSION
791 krb5_storage *sp = NULL;
794 GSSEAP_KRB_INIT(&krbContext);
796 if (!oidEqual(mech, gss_mech_krb5)) {
797 major = GSS_S_BAD_MECH;
801 /* Get the raw subsession key and encryption type */
802 #ifdef HAVE_HEIMDAL_VERSION
803 #define KRB_GSS_SUBKEY_COUNT 1 /* encoded session key */
804 major = gssInquireSecContextByOid(minor, ctx->kerberosCtx,
805 GSS_KRB5_GET_SUBKEY_X, &keyData);
807 #define KRB_GSS_SUBKEY_COUNT 2 /* raw session key, enctype OID */
808 major = gssInquireSecContextByOid(minor, ctx->kerberosCtx,
809 GSS_C_INQ_SSPI_SESSION_KEY, &keyData);
811 if (GSS_ERROR(major))
814 if (keyData == GSS_C_NO_BUFFER_SET || keyData->count < KRB_GSS_SUBKEY_COUNT) {
815 *minor = GSSEAP_KEY_UNAVAILABLE;
816 major = GSS_S_FAILURE;
820 #ifdef HAVE_HEIMDAL_VERSION
821 sp = krb5_storage_from_mem(keyData->elements[0].value,
822 keyData->elements[0].length);
825 major = GSS_S_FAILURE;
829 *minor = krb5_ret_keyblock(sp, &ctx->rfc3961Key);
831 major = GSS_S_FAILURE;
839 oid.length = keyData->elements[1].length;
840 oid.elements = keyData->elements[1].value;
842 /* GSS_KRB5_SESSION_KEY_ENCTYPE_OID */
843 major = decomposeOid(minor,
844 "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02\x04",
846 if (GSS_ERROR(major))
849 ctx->encryptionType = suffix;
855 KRB_KEY_LENGTH(&key) = keyData->elements[0].length;
856 KRB_KEY_DATA(&key) = keyData->elements[0].value;
857 KRB_KEY_TYPE(&key) = ctx->encryptionType;
859 *minor = krb5_copy_keyblock_contents(krbContext,
860 &key, &ctx->rfc3961Key);
862 major = GSS_S_FAILURE;
866 #endif /* HAVE_HEIMDAL_VERSION */
868 major = rfc3961ChecksumTypeForKey(minor, &ctx->rfc3961Key,
870 if (GSS_ERROR(major))
873 if (timeRec != GSS_C_INDEFINITE)
874 ctx->expiryTime = time(NULL) + timeRec;
876 /* Initialize our sequence state */
877 major = sequenceInit(minor,
878 &ctx->seqState, ctx->recvSeq,
879 ((ctx->gssFlags & GSS_C_REPLAY_FLAG) != 0),
880 ((ctx->gssFlags & GSS_C_SEQUENCE_FLAG) != 0),
882 if (GSS_ERROR(major))
885 major = GSS_S_COMPLETE;
888 #ifdef HAVE_HEIMDAL_VERSION
890 krb5_storage_free(sp);
892 gss_release_buffer_set(&tmpMinor, &keyData);
898 * The remainder of this file consists of wrappers so we can call into the
899 * mechanism glue without calling ourselves.
902 (*gssInitSecContextNext)(OM_uint32 *,
909 gss_channel_bindings_t,
917 (*gssAcceptSecContextNext)(OM_uint32 *,
921 gss_channel_bindings_t,
930 (*gssReleaseCredNext)(OM_uint32 *, gss_cred_id_t *);
933 (*gssReleaseNameNext)(OM_uint32 *, gss_name_t *);
936 (*gssInquireSecContextByOidNext)(OM_uint32 *,
942 (*gssDeleteSecContextNext)(OM_uint32 *,
947 (*gssDisplayNameNext)(OM_uint32 *,
953 (*gssImportNameNext)(OM_uint32 *,
959 (*gssStoreCredNext)(OM_uint32 *,
969 (*gssGetNameAttributeNext)(OM_uint32 *,
978 #define NEXT_SYMBOL(local, global) do { \
979 ((local) = dlsym(RTLD_NEXT, (global))); \
980 if ((local) == NULL) { \
981 *minor = GSSEAP_NO_MECHGLUE_SYMBOL; \
982 major = GSS_S_UNAVAILABLE; \
988 gssEapReauthInitialize(OM_uint32 *minor)
990 OM_uint32 major = GSS_S_COMPLETE;
992 NEXT_SYMBOL(gssInitSecContextNext, "gss_init_sec_context");
993 NEXT_SYMBOL(gssAcceptSecContextNext, "gss_accept_sec_context");
994 NEXT_SYMBOL(gssReleaseCredNext, "gss_release_cred");
995 NEXT_SYMBOL(gssReleaseNameNext, "gss_release_name");
996 NEXT_SYMBOL(gssInquireSecContextByOidNext, "gss_inquire_sec_context_by_oid");
997 NEXT_SYMBOL(gssDeleteSecContextNext, "gss_delete_sec_context");
998 NEXT_SYMBOL(gssDisplayNameNext, "gss_display_name");
999 NEXT_SYMBOL(gssImportNameNext, "gss_import_name");
1000 NEXT_SYMBOL(gssStoreCredNext, "gss_store_cred");
1001 NEXT_SYMBOL(gssGetNameAttributeNext, "gss_get_name_attribute");
1007 gssInitSecContext(OM_uint32 *minor,
1009 gss_ctx_id_t *context_handle,
1010 gss_name_t target_name,
1012 OM_uint32 req_flags,
1014 gss_channel_bindings_t input_chan_bindings,
1015 gss_buffer_t input_token,
1016 gss_OID *actual_mech_type,
1017 gss_buffer_t output_token,
1018 OM_uint32 *ret_flags,
1019 OM_uint32 *time_rec)
1021 if (gssInitSecContextNext == NULL) {
1022 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1023 return GSS_S_UNAVAILABLE;
1026 return gssInitSecContextNext(minor, cred, context_handle,
1027 target_name, mech_type, req_flags,
1028 time_req, input_chan_bindings,
1029 input_token, actual_mech_type,
1030 output_token, ret_flags, time_rec);
1034 gssAcceptSecContext(OM_uint32 *minor,
1035 gss_ctx_id_t *context_handle,
1037 gss_buffer_t input_token,
1038 gss_channel_bindings_t input_chan_bindings,
1039 gss_name_t *src_name,
1041 gss_buffer_t output_token,
1042 OM_uint32 *ret_flags,
1043 OM_uint32 *time_rec,
1044 gss_cred_id_t *delegated_cred_handle)
1046 if (gssAcceptSecContextNext == NULL) {
1047 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1048 return GSS_S_UNAVAILABLE;
1051 return gssAcceptSecContextNext(minor, context_handle, cred,
1052 input_token, input_chan_bindings,
1053 src_name, mech_type, output_token,
1054 ret_flags, time_rec, delegated_cred_handle);
1058 gssReleaseCred(OM_uint32 *minor,
1059 gss_cred_id_t *cred_handle)
1061 if (gssReleaseCredNext == NULL) {
1062 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1063 return GSS_S_UNAVAILABLE;
1066 return gssReleaseCredNext(minor, cred_handle);
1070 gssReleaseName(OM_uint32 *minor,
1073 if (gssReleaseName == NULL) {
1074 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1075 return GSS_S_UNAVAILABLE;
1078 return gssReleaseNameNext(minor, name);
1082 gssDeleteSecContext(OM_uint32 *minor,
1083 gss_ctx_id_t *context_handle,
1084 gss_buffer_t output_token)
1086 if (gssDeleteSecContextNext == NULL) {
1087 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1088 return GSS_S_UNAVAILABLE;
1091 return gssDeleteSecContextNext(minor, context_handle, output_token);
1095 gssDisplayName(OM_uint32 *minor,
1097 gss_buffer_t buffer,
1100 if (gssDisplayNameNext == NULL) {
1101 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1102 return GSS_S_UNAVAILABLE;
1105 return gssDisplayNameNext(minor, name, buffer, name_type);
1109 gssImportName(OM_uint32 *minor,
1110 gss_buffer_t buffer,
1114 if (gssImportNameNext == NULL) {
1115 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1116 return GSS_S_UNAVAILABLE;
1119 return gssImportNameNext(minor, buffer, name_type, name);
1123 gssInquireSecContextByOid(OM_uint32 *minor,
1124 const gss_ctx_id_t context_handle,
1125 const gss_OID desired_object,
1126 gss_buffer_set_t *data_set)
1128 if (gssInquireSecContextByOidNext == NULL) {
1129 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1130 return GSS_S_UNAVAILABLE;
1133 return gssInquireSecContextByOidNext(minor, context_handle,
1134 desired_object, data_set);
1138 gssStoreCred(OM_uint32 *minor,
1139 const gss_cred_id_t input_cred_handle,
1140 gss_cred_usage_t input_usage,
1141 const gss_OID desired_mech,
1142 OM_uint32 overwrite_cred,
1143 OM_uint32 default_cred,
1144 gss_OID_set *elements_stored,
1145 gss_cred_usage_t *cred_usage_stored)
1147 if (gssStoreCredNext == NULL) {
1148 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1149 return GSS_S_UNAVAILABLE;
1152 return gssStoreCredNext(minor, input_cred_handle, input_usage,
1153 desired_mech, overwrite_cred, default_cred,
1154 elements_stored, cred_usage_stored);
1158 gssGetNameAttribute(OM_uint32 *minor,
1164 gss_buffer_t display_value,
1167 if (gssGetNameAttributeNext == NULL) {
1168 *minor = GSSEAP_NO_MECHGLUE_SYMBOL;
1169 return GSS_S_UNAVAILABLE;
1172 return gssGetNameAttributeNext(minor, name, attr, authenticated, complete,
1173 value, display_value, more);