2 Unix SMB/CIFS implementation.
3 simple kerberos5 routines for active directory
4 Copyright (C) Andrew Tridgell 2001
5 Copyright (C) Luke Howard 2002-2003
6 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
7 Copyright (C) Guenther Deschner 2005-2007
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #define KRB5_PRIVATE 1 /* this file uses PRIVATE interfaces! */
24 #define KRB5_DEPRECATED 1 /* this file uses DEPRECATED interfaces! */
30 #ifdef HAVE_KRB5_KEYBLOCK_KEYVALUE /* Heimdal */
31 #define KRB5_KEY_TYPE(k) ((k)->keytype)
32 #define KRB5_KEY_LENGTH(k) ((k)->keyvalue.length)
33 #define KRB5_KEY_DATA(k) ((k)->keyvalue.data)
35 #define KRB5_KEY_TYPE(k) ((k)->enctype)
36 #define KRB5_KEY_LENGTH(k) ((k)->length)
37 #define KRB5_KEY_DATA(k) ((k)->contents)
38 #endif /* HAVE_KRB5_KEYBLOCK_KEYVALUE */
40 /**************************************************************
41 Wrappers around kerberos string functions that convert from
42 utf8 -> unix charset and vica versa.
43 **************************************************************/
45 /**************************************************************
46 krb5_parse_name that takes a UNIX charset.
47 **************************************************************/
49 krb5_error_code smb_krb5_parse_name(krb5_context context,
50 const char *name, /* in unix charset */
51 krb5_principal *principal)
56 if (push_utf8_allocate(&utf8_name, name) == (size_t)-1) {
60 ret = krb5_parse_name(context, utf8_name, principal);
65 #ifdef HAVE_KRB5_PARSE_NAME_NOREALM
66 /**************************************************************
67 krb5_parse_name_norealm that takes a UNIX charset.
68 **************************************************************/
70 static krb5_error_code smb_krb5_parse_name_norealm_conv(krb5_context context,
71 const char *name, /* in unix charset */
72 krb5_principal *principal)
78 if (push_utf8_allocate(&utf8_name, name) == (size_t)-1) {
82 ret = krb5_parse_name_norealm(context, utf8_name, principal);
88 /**************************************************************
89 krb5_parse_name that returns a UNIX charset name. Must
90 be freed with normal free() call.
91 **************************************************************/
93 krb5_error_code smb_krb5_unparse_name(krb5_context context,
94 krb5_const_principal principal,
101 ret = krb5_unparse_name(context, principal, &utf8_name);
106 if (pull_utf8_allocate(unix_name, utf8_name)==-1) {
107 krb5_free_unparsed_name(context, utf8_name);
110 krb5_free_unparsed_name(context, utf8_name);
114 #ifndef HAVE_KRB5_SET_REAL_TIME
116 * This function is not in the Heimdal mainline.
118 krb5_error_code krb5_set_real_time(krb5_context context, int32_t seconds, int32_t microseconds)
123 ret = krb5_us_timeofday(context, &sec, &usec);
127 context->kdc_sec_offset = seconds - sec;
128 context->kdc_usec_offset = microseconds - usec;
134 #if !defined(HAVE_KRB5_SET_DEFAULT_TGS_KTYPES)
136 #if defined(HAVE_KRB5_SET_DEFAULT_TGS_ENCTYPES)
138 /* With MIT kerberos, we should use krb5_set_default_tgs_enctypes in preference
139 * to krb5_set_default_tgs_ktypes. See
140 * http://lists.samba.org/archive/samba-technical/2006-July/048271.html
142 * If the MIT libraries are not exporting internal symbols, we will end up in
143 * this branch, which is correct. Otherwise we will continue to use the
146 krb5_error_code krb5_set_default_tgs_ktypes(krb5_context ctx, const krb5_enctype *enc)
148 return krb5_set_default_tgs_enctypes(ctx, enc);
151 #elif defined(HAVE_KRB5_SET_DEFAULT_IN_TKT_ETYPES)
154 krb5_error_code krb5_set_default_tgs_ktypes(krb5_context ctx, const krb5_enctype *enc)
156 return krb5_set_default_in_tkt_etypes(ctx, enc);
159 #endif /* HAVE_KRB5_SET_DEFAULT_TGS_ENCTYPES */
161 #endif /* HAVE_KRB5_SET_DEFAULT_TGS_KTYPES */
163 #if defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS)
165 void setup_kaddr_v4( krb5_address *pkaddr, struct sockaddr *paddr)
167 pkaddr->addr_type = KRB5_ADDRESS_INET;
168 pkaddr->address.length = sizeof(((struct sockaddr_in *)paddr)->sin_addr);
169 pkaddr->address.data = (char *)&(((struct sockaddr_in *)paddr)->sin_addr);
171 #elif defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS)
173 void setup_kaddr_v4( krb5_address *pkaddr, struct sockaddr *paddr)
175 pkaddr->addrtype = ADDRTYPE_INET;
176 pkaddr->length = sizeof(((struct sockaddr_in *)paddr)->sin_addr);
177 pkaddr->contents = (krb5_octet *)&(((struct sockaddr_in *)paddr)->sin_addr);
180 #error UNKNOWN_ADDRTYPE
183 #if defined(HAVE_KRB5_PRINCIPAL2SALT) && defined(HAVE_KRB5_USE_ENCTYPE) && defined(HAVE_KRB5_STRING_TO_KEY) && defined(HAVE_KRB5_ENCRYPT_BLOCK)
184 int create_kerberos_key_from_string_direct(krb5_context context,
185 krb5_principal host_princ,
188 krb5_enctype enctype)
192 krb5_encrypt_block eblock;
194 ret = krb5_principal2salt(context, host_princ, &salt);
196 DEBUG(1,("krb5_principal2salt failed (%s)\n", error_message(ret)));
199 krb5_use_enctype(context, &eblock, enctype);
200 ret = krb5_string_to_key(context, &eblock, key, password, &salt);
201 SAFE_FREE(salt.data);
204 #elif defined(HAVE_KRB5_GET_PW_SALT) && defined(HAVE_KRB5_STRING_TO_KEY_SALT)
205 int create_kerberos_key_from_string_direct(krb5_context context,
206 krb5_principal host_princ,
209 krb5_enctype enctype)
214 ret = krb5_get_pw_salt(context, host_princ, &salt);
216 DEBUG(1,("krb5_get_pw_salt failed (%s)\n", error_message(ret)));
220 ret = krb5_string_to_key_salt(context, enctype, (const char *)password->data, salt, key);
221 krb5_free_salt(context, salt);
225 #error UNKNOWN_CREATE_KEY_FUNCTIONS
228 int create_kerberos_key_from_string(krb5_context context,
229 krb5_principal host_princ,
232 krb5_enctype enctype)
234 krb5_principal salt_princ = NULL;
237 * Check if we've determined that the KDC is salting keys for this
238 * principal/enctype in a non-obvious way. If it is, try to match
241 salt_princ = kerberos_fetch_salt_princ_for_host_princ(context, host_princ, enctype);
242 ret = create_kerberos_key_from_string_direct(context, salt_princ ? salt_princ : host_princ, password, key, enctype);
244 krb5_free_principal(context, salt_princ);
249 #if defined(HAVE_KRB5_GET_PERMITTED_ENCTYPES)
250 krb5_error_code get_kerberos_allowed_etypes(krb5_context context,
251 krb5_enctype **enctypes)
253 return krb5_get_permitted_enctypes(context, enctypes);
255 #elif defined(HAVE_KRB5_GET_DEFAULT_IN_TKT_ETYPES)
256 krb5_error_code get_kerberos_allowed_etypes(krb5_context context,
257 krb5_enctype **enctypes)
259 return krb5_get_default_in_tkt_etypes(context, enctypes);
262 #error UNKNOWN_GET_ENCTYPES_FUNCTIONS
265 #if defined(HAVE_KRB5_AUTH_CON_SETKEY) && !defined(HAVE_KRB5_AUTH_CON_SETUSERUSERKEY)
266 krb5_error_code krb5_auth_con_setuseruserkey(krb5_context context,
267 krb5_auth_context auth_context,
268 krb5_keyblock *keyblock)
270 return krb5_auth_con_setkey(context, auth_context, keyblock);
274 bool unwrap_edata_ntstatus(TALLOC_CTX *mem_ctx,
276 DATA_BLOB *edata_out)
278 DATA_BLOB edata_contents;
282 if (!edata->length) {
286 asn1_load(&data, *edata);
287 asn1_start_tag(&data, ASN1_SEQUENCE(0));
288 asn1_start_tag(&data, ASN1_CONTEXT(1));
289 asn1_read_Integer(&data, &edata_type);
291 if (edata_type != KRB5_PADATA_PW_SALT) {
292 DEBUG(0,("edata is not of required type %d but of type %d\n",
293 KRB5_PADATA_PW_SALT, edata_type));
298 asn1_start_tag(&data, ASN1_CONTEXT(2));
299 asn1_read_OctetString(&data, &edata_contents);
305 *edata_out = data_blob_talloc(mem_ctx, edata_contents.data, edata_contents.length);
307 data_blob_free(&edata_contents);
313 bool unwrap_pac(TALLOC_CTX *mem_ctx, DATA_BLOB *auth_data, DATA_BLOB *unwrapped_pac_data)
315 DATA_BLOB pac_contents;
319 if (!auth_data->length) {
323 asn1_load(&data, *auth_data);
324 asn1_start_tag(&data, ASN1_SEQUENCE(0));
325 asn1_start_tag(&data, ASN1_SEQUENCE(0));
326 asn1_start_tag(&data, ASN1_CONTEXT(0));
327 asn1_read_Integer(&data, &data_type);
329 if (data_type != KRB5_AUTHDATA_WIN2K_PAC ) {
330 DEBUG(10,("authorization data is not a Windows PAC (type: %d)\n", data_type));
336 asn1_start_tag(&data, ASN1_CONTEXT(1));
337 asn1_read_OctetString(&data, &pac_contents);
343 *unwrapped_pac_data = data_blob_talloc(mem_ctx, pac_contents.data, pac_contents.length);
345 data_blob_free(&pac_contents);
350 bool get_auth_data_from_tkt(TALLOC_CTX *mem_ctx, DATA_BLOB *auth_data, krb5_ticket *tkt)
352 DATA_BLOB auth_data_wrapped;
353 bool got_auth_data_pac = False;
356 #if defined(HAVE_KRB5_TKT_ENC_PART2)
357 if (tkt->enc_part2 && tkt->enc_part2->authorization_data &&
358 tkt->enc_part2->authorization_data[0] &&
359 tkt->enc_part2->authorization_data[0]->length)
361 for (i = 0; tkt->enc_part2->authorization_data[i] != NULL; i++) {
363 if (tkt->enc_part2->authorization_data[i]->ad_type !=
364 KRB5_AUTHDATA_IF_RELEVANT) {
365 DEBUG(10,("get_auth_data_from_tkt: ad_type is %d\n",
366 tkt->enc_part2->authorization_data[i]->ad_type));
370 auth_data_wrapped = data_blob(tkt->enc_part2->authorization_data[i]->contents,
371 tkt->enc_part2->authorization_data[i]->length);
373 /* check if it is a PAC */
374 got_auth_data_pac = unwrap_pac(mem_ctx, &auth_data_wrapped, auth_data);
375 data_blob_free(&auth_data_wrapped);
377 if (!got_auth_data_pac) {
382 return got_auth_data_pac;
386 if (tkt->ticket.authorization_data &&
387 tkt->ticket.authorization_data->len)
389 for (i = 0; i < tkt->ticket.authorization_data->len; i++) {
391 if (tkt->ticket.authorization_data->val[i].ad_type !=
392 KRB5_AUTHDATA_IF_RELEVANT) {
393 DEBUG(10,("get_auth_data_from_tkt: ad_type is %d\n",
394 tkt->ticket.authorization_data->val[i].ad_type));
398 auth_data_wrapped = data_blob(tkt->ticket.authorization_data->val[i].ad_data.data,
399 tkt->ticket.authorization_data->val[i].ad_data.length);
401 /* check if it is a PAC */
402 got_auth_data_pac = unwrap_pac(mem_ctx, &auth_data_wrapped, auth_data);
403 data_blob_free(&auth_data_wrapped);
405 if (!got_auth_data_pac) {
410 return got_auth_data_pac;
416 krb5_const_principal get_principal_from_tkt(krb5_ticket *tkt)
418 #if defined(HAVE_KRB5_TKT_ENC_PART2)
419 return tkt->enc_part2->client;
425 #if !defined(HAVE_KRB5_LOCATE_KDC)
427 /* krb5_locate_kdc is an internal MIT symbol. MIT are not yet willing to commit
428 * to a public interface for this functionality, so we have to be able to live
429 * without it if the MIT libraries are hiding their internal symbols.
432 #if defined(KRB5_KRBHST_INIT)
434 krb5_error_code smb_krb5_locate_kdc(krb5_context ctx, const krb5_data *realm, struct sockaddr **addr_pp, int *naddrs, int get_masters)
436 krb5_krbhst_handle hnd;
437 krb5_krbhst_info *hinfo;
446 rc = krb5_krbhst_init(ctx, realm->data, KRB5_KRBHST_KDC, &hnd);
448 DEBUG(0, ("smb_krb5_locate_kdc: krb5_krbhst_init failed (%s)\n", error_message(rc)));
452 for ( num_kdcs = 0; (rc = krb5_krbhst_next(ctx, hnd, &hinfo) == 0); num_kdcs++)
455 krb5_krbhst_reset(ctx, hnd);
458 DEBUG(0, ("smb_krb5_locate_kdc: zero kdcs found !\n"));
459 krb5_krbhst_free(ctx, hnd);
463 sa = SMB_MALLOC_ARRAY( struct sockaddr, num_kdcs );
465 DEBUG(0, ("smb_krb5_locate_kdc: malloc failed\n"));
466 krb5_krbhst_free(ctx, hnd);
471 memset(sa, '\0', sizeof(struct sockaddr) * num_kdcs );
473 for (i = 0; i < num_kdcs && (rc = krb5_krbhst_next(ctx, hnd, &hinfo) == 0); i++) {
475 #if defined(HAVE_KRB5_KRBHST_GET_ADDRINFO)
476 rc = krb5_krbhst_get_addrinfo(ctx, hinfo, &ai);
478 DEBUG(0,("krb5_krbhst_get_addrinfo failed: %s\n", error_message(rc)));
482 if (hinfo->ai && hinfo->ai->ai_family == AF_INET)
483 memcpy(&sa[i], hinfo->ai->ai_addr, sizeof(struct sockaddr));
486 krb5_krbhst_free(ctx, hnd);
493 #else /* ! defined(KRB5_KRBHST_INIT) */
495 krb5_error_code smb_krb5_locate_kdc(krb5_context ctx, const krb5_data *realm,
496 struct sockaddr **addr_pp, int *naddrs, int get_masters)
498 DEBUG(0, ("unable to explicitly locate the KDC on this platform\n"));
499 return KRB5_KDC_UNREACH;
502 #endif /* KRB5_KRBHST_INIT */
504 #else /* ! HAVE_KRB5_LOCATE_KDC */
506 krb5_error_code smb_krb5_locate_kdc(krb5_context ctx, const krb5_data *realm,
507 struct sockaddr **addr_pp, int *naddrs, int get_masters)
509 return krb5_locate_kdc(ctx, realm, addr_pp, naddrs, get_masters);
512 #endif /* HAVE_KRB5_LOCATE_KDC */
514 #if !defined(HAVE_KRB5_FREE_UNPARSED_NAME)
515 void krb5_free_unparsed_name(krb5_context context, char *val)
521 void kerberos_free_data_contents(krb5_context context, krb5_data *pdata)
523 #if defined(HAVE_KRB5_FREE_DATA_CONTENTS)
525 krb5_free_data_contents(context, pdata);
528 SAFE_FREE(pdata->data);
532 void kerberos_set_creds_enctype(krb5_creds *pcreds, int enctype)
534 #if defined(HAVE_KRB5_KEYBLOCK_IN_CREDS)
535 KRB5_KEY_TYPE((&pcreds->keyblock)) = enctype;
536 #elif defined(HAVE_KRB5_SESSION_IN_CREDS)
537 KRB5_KEY_TYPE((&pcreds->session)) = enctype;
539 #error UNKNOWN_KEYBLOCK_MEMBER_IN_KRB5_CREDS_STRUCT
543 bool kerberos_compatible_enctypes(krb5_context context,
544 krb5_enctype enctype1,
545 krb5_enctype enctype2)
547 #if defined(HAVE_KRB5_C_ENCTYPE_COMPARE)
548 krb5_boolean similar = 0;
550 krb5_c_enctype_compare(context, enctype1, enctype2, &similar);
551 return similar ? True : False;
552 #elif defined(HAVE_KRB5_ENCTYPES_COMPATIBLE_KEYS)
553 return krb5_enctypes_compatible_keys(context, enctype1, enctype2) ? True : False;
557 static bool ads_cleanup_expired_creds(krb5_context context,
561 krb5_error_code retval;
562 const char *cc_type = krb5_cc_get_type(context, ccache);
564 DEBUG(3, ("ads_cleanup_expired_creds: Ticket in ccache[%s:%s] expiration %s\n",
565 cc_type, krb5_cc_get_name(context, ccache),
566 http_timestring(credsp->times.endtime)));
568 /* we will probably need new tickets if the current ones
569 will expire within 10 seconds.
571 if (credsp->times.endtime >= (time(NULL) + 10))
574 /* heimdal won't remove creds from a file ccache, and
575 perhaps we shouldn't anyway, since internally we
576 use memory ccaches, and a FILE one probably means that
577 we're using creds obtained outside of our exectuable
579 if (strequal(cc_type, "FILE")) {
580 DEBUG(5, ("ads_cleanup_expired_creds: We do not remove creds from a %s ccache\n", cc_type));
584 retval = krb5_cc_remove_cred(context, ccache, 0, credsp);
586 DEBUG(1, ("ads_cleanup_expired_creds: krb5_cc_remove_cred failed, err %s\n",
587 error_message(retval)));
588 /* If we have an error in this, we want to display it,
589 but continue as though we deleted it */
595 we can't use krb5_mk_req because w2k wants the service to be in a particular format
597 static krb5_error_code ads_krb5_mk_req(krb5_context context,
598 krb5_auth_context *auth_context,
599 const krb5_flags ap_req_options,
600 const char *principal,
605 krb5_error_code retval;
606 krb5_principal server;
610 bool creds_ready = False;
611 int i = 0, maxtries = 3;
613 retval = smb_krb5_parse_name(context, principal, &server);
615 DEBUG(1,("ads_krb5_mk_req: Failed to parse principal %s\n", principal));
619 /* obtain ticket & session key */
621 if ((retval = krb5_copy_principal(context, server, &creds.server))) {
622 DEBUG(1,("ads_krb5_mk_req: krb5_copy_principal failed (%s)\n",
623 error_message(retval)));
627 if ((retval = krb5_cc_get_principal(context, ccache, &creds.client))) {
628 /* This can commonly fail on smbd startup with no ticket in the cache.
629 * Report at higher level than 1. */
630 DEBUG(3,("ads_krb5_mk_req: krb5_cc_get_principal failed (%s)\n",
631 error_message(retval)));
635 while (!creds_ready && (i < maxtries)) {
637 if ((retval = krb5_get_credentials(context, 0, ccache,
639 DEBUG(1,("ads_krb5_mk_req: krb5_get_credentials failed for %s (%s)\n",
640 principal, error_message(retval)));
644 /* cope with ticket being in the future due to clock skew */
645 if ((unsigned)credsp->times.starttime > time(NULL)) {
646 time_t t = time(NULL);
647 int time_offset =(int)((unsigned)credsp->times.starttime-t);
648 DEBUG(4,("ads_krb5_mk_req: Advancing clock by %d seconds to cope with clock skew\n", time_offset));
649 krb5_set_real_time(context, t + time_offset + 1, 0);
652 if (!ads_cleanup_expired_creds(context, ccache, credsp)) {
659 DEBUG(10,("ads_krb5_mk_req: Ticket (%s) in ccache (%s:%s) is valid until: (%s - %u)\n",
660 principal, krb5_cc_get_type(context, ccache), krb5_cc_get_name(context, ccache),
661 http_timestring((unsigned)credsp->times.endtime),
662 (unsigned)credsp->times.endtime));
665 *expire_time = (time_t)credsp->times.endtime;
669 retval = krb5_mk_req_extended(context, auth_context, ap_req_options,
670 &in_data, credsp, outbuf);
672 DEBUG(1,("ads_krb5_mk_req: krb5_mk_req_extended failed (%s)\n",
673 error_message(retval)));
676 krb5_free_creds(context, credsp);
679 krb5_free_cred_contents(context, &creds);
682 krb5_free_principal(context, server);
688 get a kerberos5 ticket for the given service
690 int cli_krb5_get_ticket(const char *principal, time_t time_offset,
691 DATA_BLOB *ticket, DATA_BLOB *session_key_krb5,
692 uint32 extra_ap_opts, const char *ccname,
696 krb5_error_code retval;
698 krb5_context context = NULL;
699 krb5_ccache ccdef = NULL;
700 krb5_auth_context auth_context = NULL;
701 krb5_enctype enc_types[] = {
702 #ifdef ENCTYPE_ARCFOUR_HMAC
703 ENCTYPE_ARCFOUR_HMAC,
709 initialize_krb5_error_table();
710 retval = krb5_init_context(&context);
712 DEBUG(1,("cli_krb5_get_ticket: krb5_init_context failed (%s)\n",
713 error_message(retval)));
717 if (time_offset != 0) {
718 krb5_set_real_time(context, time(NULL) + time_offset, 0);
721 if ((retval = krb5_cc_resolve(context, ccname ?
722 ccname : krb5_cc_default_name(context), &ccdef))) {
723 DEBUG(1,("cli_krb5_get_ticket: krb5_cc_default failed (%s)\n",
724 error_message(retval)));
728 if ((retval = krb5_set_default_tgs_ktypes(context, enc_types))) {
729 DEBUG(1,("cli_krb5_get_ticket: krb5_set_default_tgs_ktypes failed (%s)\n",
730 error_message(retval)));
734 if ((retval = ads_krb5_mk_req(context,
736 AP_OPTS_USE_SUBKEY | (krb5_flags)extra_ap_opts,
743 get_krb5_smb_session_key(context, auth_context, session_key_krb5, False);
745 *ticket = data_blob(packet.data, packet.length);
747 kerberos_free_data_contents(context, &packet);
753 krb5_cc_close(context, ccdef);
755 krb5_auth_con_free(context, auth_context);
756 krb5_free_context(context);
762 bool get_krb5_smb_session_key(krb5_context context, krb5_auth_context auth_context, DATA_BLOB *session_key, bool remote)
769 err = krb5_auth_con_getremotesubkey(context, auth_context, &skey);
771 err = krb5_auth_con_getlocalsubkey(context, auth_context, &skey);
772 if (err == 0 && skey != NULL) {
773 DEBUG(10, ("Got KRB5 session key of length %d\n", (int)KRB5_KEY_LENGTH(skey)));
774 *session_key = data_blob(KRB5_KEY_DATA(skey), KRB5_KEY_LENGTH(skey));
775 dump_data_pw("KRB5 Session Key:\n", session_key->data, session_key->length);
779 krb5_free_keyblock(context, skey);
781 DEBUG(10, ("KRB5 error getting session key %d\n", err));
788 #if defined(HAVE_KRB5_PRINCIPAL_GET_COMP_STRING) && !defined(HAVE_KRB5_PRINC_COMPONENT)
789 const krb5_data *krb5_princ_component(krb5_context context, krb5_principal principal, int i );
791 const krb5_data *krb5_princ_component(krb5_context context, krb5_principal principal, int i )
793 static krb5_data kdata;
795 kdata.data = (char *)krb5_principal_get_comp_string(context, principal, i);
796 kdata.length = strlen((const char *)kdata.data);
801 krb5_error_code smb_krb5_kt_free_entry(krb5_context context, krb5_keytab_entry *kt_entry)
803 #if defined(HAVE_KRB5_KT_FREE_ENTRY)
804 return krb5_kt_free_entry(context, kt_entry);
805 #elif defined(HAVE_KRB5_FREE_KEYTAB_ENTRY_CONTENTS)
806 return krb5_free_keytab_entry_contents(context, kt_entry);
808 #error UNKNOWN_KT_FREE_FUNCTION
812 void smb_krb5_checksum_from_pac_sig(krb5_checksum *cksum,
813 PAC_SIGNATURE_DATA *sig)
815 #ifdef HAVE_CHECKSUM_IN_KRB5_CHECKSUM
816 cksum->cksumtype = (krb5_cksumtype)sig->type;
817 cksum->checksum.length = sig->signature.buf_len;
818 cksum->checksum.data = sig->signature.buffer;
820 cksum->checksum_type = (krb5_cksumtype)sig->type;
821 cksum->length = sig->signature.buf_len;
822 cksum->contents = sig->signature.buffer;
826 krb5_error_code smb_krb5_verify_checksum(krb5_context context,
827 krb5_keyblock *keyblock,
829 krb5_checksum *cksum,
835 /* verify the checksum */
837 /* welcome to the wonderful world of samba's kerberos abstraction layer:
839 * function heimdal 0.6.1rc3 heimdal 0.7 MIT krb 1.4.2
840 * -----------------------------------------------------------------------------
841 * krb5_c_verify_checksum - works works
842 * krb5_verify_checksum works (6 args) works (6 args) broken (7 args)
845 #if defined(HAVE_KRB5_C_VERIFY_CHECKSUM)
847 krb5_boolean checksum_valid = False;
850 input.data = (char *)data;
851 input.length = length;
853 ret = krb5_c_verify_checksum(context,
860 DEBUG(3,("smb_krb5_verify_checksum: krb5_c_verify_checksum() failed: %s\n",
861 error_message(ret)));
866 ret = KRB5KRB_AP_ERR_BAD_INTEGRITY;
869 #elif KRB5_VERIFY_CHECKSUM_ARGS == 6 && defined(HAVE_KRB5_CRYPTO_INIT) && defined(HAVE_KRB5_CRYPTO) && defined(HAVE_KRB5_CRYPTO_DESTROY)
871 /* Warning: MIT's krb5_verify_checksum cannot be used as it will use a key
872 * without enctype and it ignores any key_usage types - Guenther */
877 ret = krb5_crypto_init(context,
882 DEBUG(0,("smb_krb5_verify_checksum: krb5_crypto_init() failed: %s\n",
883 error_message(ret)));
887 ret = krb5_verify_checksum(context,
894 krb5_crypto_destroy(context, crypto);
898 #error UNKNOWN_KRB5_VERIFY_CHECKSUM_FUNCTION
904 time_t get_authtime_from_tkt(krb5_ticket *tkt)
906 #if defined(HAVE_KRB5_TKT_ENC_PART2)
907 return tkt->enc_part2->times.authtime;
909 return tkt->ticket.authtime;
913 #ifdef HAVE_KRB5_DECODE_AP_REQ /* Heimdal */
914 static int get_kvno_from_ap_req(krb5_ap_req *ap_req)
916 #ifdef HAVE_TICKET_POINTER_IN_KRB5_AP_REQ /* MIT */
917 if (ap_req->ticket->enc_part.kvno)
918 return ap_req->ticket->enc_part.kvno;
920 if (ap_req->ticket.enc_part.kvno)
921 return *ap_req->ticket.enc_part.kvno;
926 static krb5_enctype get_enctype_from_ap_req(krb5_ap_req *ap_req)
928 #ifdef HAVE_ETYPE_IN_ENCRYPTEDDATA /* Heimdal */
929 return ap_req->ticket.enc_part.etype;
931 return ap_req->ticket->enc_part.enctype;
934 #endif /* HAVE_KRB5_DECODE_AP_REQ */
936 static krb5_error_code
937 get_key_from_keytab(krb5_context context,
938 krb5_const_principal server,
939 krb5_enctype enctype,
941 krb5_keyblock **out_key)
943 krb5_keytab_entry entry;
948 /* We have to open a new keytab handle here, as MIT does
949 an implicit open/getnext/close on krb5_kt_get_entry. We
950 may be in the middle of a keytab enumeration when this is
953 ret = smb_krb5_open_keytab(context, NULL, False, &keytab);
955 DEBUG(1,("get_key_from_keytab: smb_krb5_open_keytab failed (%s)\n", error_message(ret)));
959 if ( DEBUGLEVEL >= 10 ) {
960 if (smb_krb5_unparse_name(context, server, &name) == 0) {
961 DEBUG(10,("get_key_from_keytab: will look for kvno %d, enctype %d and name: %s\n",
962 kvno, enctype, name));
967 ret = krb5_kt_get_entry(context,
975 DEBUG(0,("get_key_from_keytab: failed to retrieve key: %s\n", error_message(ret)));
979 #ifdef HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK /* Heimdal */
980 ret = krb5_copy_keyblock(context, &entry.keyblock, out_key);
981 #elif defined(HAVE_KRB5_KEYTAB_ENTRY_KEY) /* MIT */
982 ret = krb5_copy_keyblock(context, &entry.key, out_key);
984 #error UNKNOWN_KRB5_KEYTAB_ENTRY_FORMAT
988 DEBUG(0,("get_key_from_keytab: failed to copy key: %s\n", error_message(ret)));
992 smb_krb5_kt_free_entry(context, &entry);
995 krb5_kt_close(context, keytab);
1001 krb5_error_code smb_krb5_get_keyinfo_from_ap_req(krb5_context context,
1002 const krb5_data *inbuf,
1004 krb5_enctype *enctype)
1006 #ifdef HAVE_KRB5_DECODE_AP_REQ /* Heimdal */
1008 krb5_error_code ret;
1011 ret = krb5_decode_ap_req(context, inbuf, &ap_req);
1015 *kvno = get_kvno_from_ap_req(&ap_req);
1016 *enctype = get_enctype_from_ap_req(&ap_req);
1018 free_AP_REQ(&ap_req);
1023 /* Possibly not an appropriate error code. */
1024 return KRB5KDC_ERR_BADOPTION;
1027 krb5_error_code krb5_rd_req_return_keyblock_from_keytab(krb5_context context,
1028 krb5_auth_context *auth_context,
1029 const krb5_data *inbuf,
1030 krb5_const_principal server,
1032 krb5_flags *ap_req_options,
1033 krb5_ticket **ticket,
1034 krb5_keyblock **keyblock)
1036 krb5_error_code ret;
1038 krb5_enctype enctype;
1039 krb5_keyblock *local_keyblock;
1041 ret = krb5_rd_req(context,
1052 #ifdef KRB5_TICKET_HAS_KEYINFO
1053 enctype = (*ticket)->enc_part.enctype;
1054 kvno = (*ticket)->enc_part.kvno;
1056 ret = smb_krb5_get_keyinfo_from_ap_req(context, inbuf, &kvno, &enctype);
1062 ret = get_key_from_keytab(context,
1068 DEBUG(0,("krb5_rd_req_return_keyblock_from_keytab: failed to call get_key_from_keytab\n"));
1073 if (ret && local_keyblock != NULL) {
1074 krb5_free_keyblock(context, local_keyblock);
1076 *keyblock = local_keyblock;
1082 krb5_error_code smb_krb5_parse_name_norealm(krb5_context context,
1084 krb5_principal *principal)
1086 #ifdef HAVE_KRB5_PARSE_NAME_NOREALM
1087 return smb_krb5_parse_name_norealm_conv(context, name, principal);
1090 /* we are cheating here because parse_name will in fact set the realm.
1091 * We don't care as the only caller of smb_krb5_parse_name_norealm
1092 * ignores the realm anyway when calling
1093 * smb_krb5_principal_compare_any_realm later - Guenther */
1095 return smb_krb5_parse_name(context, name, principal);
1098 bool smb_krb5_principal_compare_any_realm(krb5_context context,
1099 krb5_const_principal princ1,
1100 krb5_const_principal princ2)
1102 #ifdef HAVE_KRB5_PRINCIPAL_COMPARE_ANY_REALM
1104 return krb5_principal_compare_any_realm(context, princ1, princ2);
1106 /* krb5_princ_size is a macro in MIT */
1107 #elif defined(HAVE_KRB5_PRINC_SIZE) || defined(krb5_princ_size)
1110 const krb5_data *p1, *p2;
1112 len1 = krb5_princ_size(context, princ1);
1113 len2 = krb5_princ_size(context, princ2);
1118 for (i = 0; i < len1; i++) {
1120 p1 = krb5_princ_component(context, CONST_DISCARD(krb5_principal, princ1), i);
1121 p2 = krb5_princ_component(context, CONST_DISCARD(krb5_principal, princ2), i);
1123 if (p1->length != p2->length || memcmp(p1->data, p2->data, p1->length))
1129 #error NO_SUITABLE_PRINCIPAL_COMPARE_FUNCTION
1133 krb5_error_code smb_krb5_renew_ticket(const char *ccache_string, /* FILE:/tmp/krb5cc_0 */
1134 const char *client_string, /* gd@BER.SUSE.DE */
1135 const char *service_string, /* krbtgt/BER.SUSE.DE@BER.SUSE.DE */
1136 time_t *expire_time)
1138 krb5_error_code ret;
1139 krb5_context context = NULL;
1140 krb5_ccache ccache = NULL;
1141 krb5_principal client = NULL;
1142 krb5_creds creds, creds_in, *creds_out = NULL;
1145 ZERO_STRUCT(creds_in);
1147 initialize_krb5_error_table();
1148 ret = krb5_init_context(&context);
1153 if (!ccache_string) {
1154 ccache_string = krb5_cc_default_name(context);
1157 if (!ccache_string) {
1162 DEBUG(10,("smb_krb5_renew_ticket: using %s as ccache\n", ccache_string));
1164 /* FIXME: we should not fall back to defaults */
1165 ret = krb5_cc_resolve(context, CONST_DISCARD(char *, ccache_string), &ccache);
1170 if (client_string) {
1171 ret = smb_krb5_parse_name(context, client_string, &client);
1176 ret = krb5_cc_get_principal(context, ccache, &client);
1182 #ifdef HAVE_KRB5_GET_RENEWED_CREDS /* MIT */
1184 ret = krb5_get_renewed_creds(context, &creds, client, ccache, CONST_DISCARD(char *, service_string));
1186 DEBUG(10,("smb_krb5_renew_ticket: krb5_get_kdc_cred failed: %s\n", error_message(ret)));
1190 #elif defined(HAVE_KRB5_GET_KDC_CRED) /* Heimdal */
1192 krb5_kdc_flags flags;
1193 krb5_realm *client_realm = NULL;
1195 ret = krb5_copy_principal(context, client, &creds_in.client);
1200 if (service_string) {
1201 ret = smb_krb5_parse_name(context, service_string, &creds_in.server);
1206 /* build tgt service by default */
1207 client_realm = krb5_princ_realm(context, creds_in.client);
1208 if (!client_realm) {
1212 ret = krb5_make_principal(context, &creds_in.server, *client_realm, KRB5_TGS_NAME, *client_realm, NULL);
1219 flags.b.renewable = flags.b.renew = True;
1221 ret = krb5_get_kdc_cred(context, ccache, flags, NULL, NULL, &creds_in, &creds_out);
1223 DEBUG(10,("smb_krb5_renew_ticket: krb5_get_kdc_cred failed: %s\n", error_message(ret)));
1230 #error NO_SUITABLE_KRB5_TICKET_RENEW_FUNCTION_AVAILABLE
1233 /* hm, doesn't that create a new one if the old one wasn't there? - Guenther */
1234 ret = krb5_cc_initialize(context, ccache, client);
1239 ret = krb5_cc_store_cred(context, ccache, &creds);
1242 *expire_time = (time_t) creds.times.endtime;
1246 krb5_free_cred_contents(context, &creds_in);
1249 krb5_free_creds(context, creds_out);
1251 krb5_free_cred_contents(context, &creds);
1255 krb5_free_principal(context, client);
1258 krb5_cc_close(context, ccache);
1261 krb5_free_context(context);
1267 krb5_error_code smb_krb5_free_addresses(krb5_context context, smb_krb5_addresses *addr)
1269 krb5_error_code ret = 0;
1273 #if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
1274 krb5_free_addresses(context, addr->addrs);
1275 #elif defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS) /* Heimdal */
1276 ret = krb5_free_addresses(context, addr->addrs);
1277 SAFE_FREE(addr->addrs);
1284 krb5_error_code smb_krb5_gen_netbios_krb5_address(smb_krb5_addresses **kerb_addr)
1286 krb5_error_code ret = 0;
1288 #if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
1289 krb5_address **addrs = NULL;
1290 #elif defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS) /* Heimdal */
1291 krb5_addresses *addrs = NULL;
1294 *kerb_addr = (smb_krb5_addresses *)SMB_MALLOC(sizeof(smb_krb5_addresses));
1295 if (*kerb_addr == NULL) {
1299 put_name(buf, global_myname(), ' ', 0x20);
1301 #if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
1305 addrs = (krb5_address **)SMB_MALLOC(sizeof(krb5_address *) * num_addr);
1306 if (addrs == NULL) {
1307 SAFE_FREE(kerb_addr);
1311 memset(addrs, 0, sizeof(krb5_address *) * num_addr);
1313 addrs[0] = (krb5_address *)SMB_MALLOC(sizeof(krb5_address));
1314 if (addrs[0] == NULL) {
1316 SAFE_FREE(kerb_addr);
1320 addrs[0]->magic = KV5M_ADDRESS;
1321 addrs[0]->addrtype = KRB5_ADDR_NETBIOS;
1322 addrs[0]->length = MAX_NETBIOSNAME_LEN;
1323 addrs[0]->contents = (unsigned char *)SMB_MALLOC(addrs[0]->length);
1324 if (addrs[0]->contents == NULL) {
1325 SAFE_FREE(addrs[0]);
1327 SAFE_FREE(kerb_addr);
1331 memcpy(addrs[0]->contents, buf, addrs[0]->length);
1335 #elif defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS) /* Heimdal */
1337 addrs = (krb5_addresses *)SMB_MALLOC(sizeof(krb5_addresses));
1338 if (addrs == NULL) {
1339 SAFE_FREE(kerb_addr);
1343 memset(addrs, 0, sizeof(krb5_addresses));
1346 addrs->val = (krb5_address *)SMB_MALLOC(sizeof(krb5_address));
1347 if (addrs->val == NULL) {
1349 SAFE_FREE(kerb_addr);
1353 addrs->val[0].addr_type = KRB5_ADDR_NETBIOS;
1354 addrs->val[0].address.length = MAX_NETBIOSNAME_LEN;
1355 addrs->val[0].address.data = (unsigned char *)SMB_MALLOC(addrs->val[0].address.length);
1356 if (addrs->val[0].address.data == NULL) {
1357 SAFE_FREE(addrs->val);
1359 SAFE_FREE(kerb_addr);
1363 memcpy(addrs->val[0].address.data, buf, addrs->val[0].address.length);
1366 #error UNKNOWN_KRB5_ADDRESS_FORMAT
1368 (*kerb_addr)->addrs = addrs;
1373 void smb_krb5_free_error(krb5_context context, krb5_error *krberror)
1375 #ifdef HAVE_KRB5_FREE_ERROR_CONTENTS /* Heimdal */
1376 krb5_free_error_contents(context, krberror);
1378 krb5_free_error(context, krberror);
1382 krb5_error_code handle_krberror_packet(krb5_context context,
1385 krb5_error_code ret;
1386 bool got_error_code = False;
1388 DEBUG(10,("handle_krberror_packet: got error packet\n"));
1390 #ifdef HAVE_E_DATA_POINTER_IN_KRB5_ERROR /* Heimdal */
1392 krb5_error krberror;
1394 if ((ret = krb5_rd_error(context, packet, &krberror))) {
1395 DEBUG(10,("handle_krberror_packet: krb5_rd_error failed with: %s\n",
1396 error_message(ret)));
1400 if (krberror.e_data == NULL || krberror.e_data->data == NULL) {
1401 ret = (krb5_error_code) krberror.error_code;
1402 got_error_code = True;
1405 smb_krb5_free_error(context, &krberror);
1409 krb5_error *krberror;
1411 if ((ret = krb5_rd_error(context, packet, &krberror))) {
1412 DEBUG(10,("handle_krberror_packet: krb5_rd_error failed with: %s\n",
1413 error_message(ret)));
1417 if (krberror->e_data.data == NULL) {
1418 ret = ERROR_TABLE_BASE_krb5 + (krb5_error_code) krberror->error;
1419 got_error_code = True;
1421 smb_krb5_free_error(context, krberror);
1424 if (got_error_code) {
1425 DEBUG(5,("handle_krberror_packet: got KERBERR from kpasswd: %s (%d)\n",
1426 error_message(ret), ret));
1431 krb5_error_code smb_krb5_get_init_creds_opt_alloc(krb5_context context,
1432 krb5_get_init_creds_opt **opt)
1434 #ifdef HAVE_KRB5_GET_INIT_CREDS_OPT_ALLOC
1435 /* Heimdal or modern MIT version */
1436 return krb5_get_init_creds_opt_alloc(context, opt);
1438 /* Historical MIT version */
1439 krb5_get_init_creds_opt *my_opt;
1443 if ((my_opt = SMB_MALLOC_P(krb5_get_init_creds_opt)) == NULL) {
1447 krb5_get_init_creds_opt_init(my_opt);
1451 #endif /* HAVE_KRB5_GET_INIT_CREDS_OPT_ALLOC */
1454 void smb_krb5_get_init_creds_opt_free(krb5_context context,
1455 krb5_get_init_creds_opt *opt)
1457 #ifdef HAVE_KRB5_GET_INIT_CREDS_OPT_FREE
1459 #ifdef KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT
1460 /* Modern MIT or Heimdal version */
1461 krb5_get_init_creds_opt_free(context, opt);
1463 /* Heimdal version */
1464 krb5_get_init_creds_opt_free(opt);
1465 #endif /* KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT */
1467 #else /* HAVE_KRB5_GET_INIT_CREDS_OPT_FREE */
1468 /* Historical MIT version */
1471 #endif /* HAVE_KRB5_GET_INIT_CREDS_OPT_FREE */
1474 krb5_enctype smb_get_enctype_from_kt_entry(const krb5_keytab_entry *kt_entry)
1476 #ifdef HAVE_KRB5_KEYTAB_ENTRY_KEY /* MIT */
1477 return kt_entry->key.enctype;
1478 #elif defined(HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK) /* Heimdal */
1479 return kt_entry->keyblock.keytype;
1481 #error UNKNOWN_KRB5_KEYTAB_ENTRY_KEYBLOCK_FORMAT
1486 /* caller needs to free etype_s */
1487 krb5_error_code smb_krb5_enctype_to_string(krb5_context context,
1488 krb5_enctype enctype,
1491 #ifdef HAVE_KRB5_ENCTYPE_TO_STRING_WITH_KRB5_CONTEXT_ARG
1492 return krb5_enctype_to_string(context, enctype, etype_s); /* Heimdal */
1493 #elif defined(HAVE_KRB5_ENCTYPE_TO_STRING_WITH_SIZE_T_ARG)
1495 krb5_error_code ret = krb5_enctype_to_string(enctype, buf, 256); /* MIT */
1499 *etype_s = SMB_STRDUP(buf);
1505 #error UNKNOWN_KRB5_ENCTYPE_TO_STRING_FUNCTION
1509 krb5_error_code smb_krb5_mk_error(krb5_context context,
1510 krb5_error_code error_code,
1511 const krb5_principal server,
1514 #ifdef HAVE_SHORT_KRB5_MK_ERROR_INTERFACE /* MIT */
1516 * The MIT interface is *terrible*.
1517 * We have to construct this ourselves...
1521 memset(&e, 0, sizeof(e));
1522 krb5_us_timeofday(context, &e.stime, &e.susec);
1524 #if defined(krb5_err_base)
1525 e.error = error_code - krb5_err_base;
1526 #elif defined(ERROR_TABLE_BASE_krb5)
1527 e.error = error_code - ERROR_TABLE_BASE_krb5;
1529 e.error = error_code; /* Almost certainly wrong, but what can we do... ? */
1532 return krb5_mk_error(context, &e, reply);
1533 #else /* Heimdal. */
1534 return krb5_mk_error(context,
1546 /**********************************************************************
1547 * Open a krb5 keytab with flags, handles readonly or readwrite access and
1548 * allows to process non-default keytab names.
1549 * @param context krb5_context
1550 * @param keytab_name_req string
1551 * @param write_access bool if writable keytab is required
1552 * @param krb5_keytab pointer to krb5_keytab (close with krb5_kt_close())
1553 * @return krb5_error_code
1554 **********************************************************************/
1556 /* This MAX_NAME_LEN is a constant defined in krb5.h */
1557 #ifndef MAX_KEYTAB_NAME_LEN
1558 #define MAX_KEYTAB_NAME_LEN 1100
1561 krb5_error_code smb_krb5_open_keytab(krb5_context context,
1562 const char *keytab_name_req,
1564 krb5_keytab *keytab)
1566 krb5_error_code ret = 0;
1567 TALLOC_CTX *mem_ctx;
1568 char keytab_string[MAX_KEYTAB_NAME_LEN];
1569 bool found_valid_name = False;
1570 const char *pragma = "FILE";
1571 const char *tmp = NULL;
1573 if (!write_access && !keytab_name_req) {
1574 /* caller just wants to read the default keytab readonly, so be it */
1575 return krb5_kt_default(context, keytab);
1578 mem_ctx = talloc_init("smb_krb5_open_keytab");
1583 #ifdef HAVE_WRFILE_KEYTAB
1589 if (keytab_name_req) {
1591 if (strlen(keytab_name_req) > MAX_KEYTAB_NAME_LEN) {
1592 ret = KRB5_CONFIG_NOTENUFSPACE;
1596 if ((strncmp(keytab_name_req, "WRFILE:/", 8) == 0) ||
1597 (strncmp(keytab_name_req, "FILE:/", 6) == 0)) {
1598 tmp = keytab_name_req;
1602 if (keytab_name_req[0] != '/') {
1603 ret = KRB5_KT_BADNAME;
1607 tmp = talloc_asprintf(mem_ctx, "%s:%s", pragma, keytab_name_req);
1616 /* we need to handle more complex keytab_strings, like:
1617 * "ANY:FILE:/etc/krb5.keytab,krb4:/etc/srvtab" */
1619 ret = krb5_kt_default_name(context, &keytab_string[0], MAX_KEYTAB_NAME_LEN - 2);
1624 DEBUG(10,("smb_krb5_open_keytab: krb5_kt_default_name returned %s\n", keytab_string));
1626 tmp = talloc_strdup(mem_ctx, keytab_string);
1632 if (strncmp(tmp, "ANY:", 4) == 0) {
1636 memset(&keytab_string, '\0', sizeof(keytab_string));
1638 while (next_token(&tmp, keytab_string, ",", sizeof(keytab_string))) {
1640 if (strncmp(keytab_string, "WRFILE:", 7) == 0) {
1641 found_valid_name = True;
1642 tmp = keytab_string;
1646 if (strncmp(keytab_string, "FILE:", 5) == 0) {
1647 found_valid_name = True;
1648 tmp = keytab_string;
1652 if (found_valid_name) {
1654 if (tmp[0] != '/') {
1655 ret = KRB5_KT_BADNAME;
1659 tmp = talloc_asprintf(mem_ctx, "%s:%s", pragma, tmp);
1668 if (!found_valid_name) {
1669 ret = KRB5_KT_UNKNOWN_TYPE;
1674 DEBUG(10,("smb_krb5_open_keytab: resolving: %s\n", tmp));
1675 ret = krb5_kt_resolve(context, tmp, keytab);
1678 TALLOC_FREE(mem_ctx);
1682 #else /* HAVE_KRB5 */
1683 /* this saves a few linking headaches */
1684 int cli_krb5_get_ticket(const char *principal, time_t time_offset,
1685 DATA_BLOB *ticket, DATA_BLOB *session_key_krb5, uint32 extra_ap_opts,
1686 const char *ccname, time_t *tgs_expire)
1688 DEBUG(0,("NO KERBEROS SUPPORT\n"));