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)
55 size_t converted_size;
57 if (!push_utf8_allocate(&utf8_name, name, &converted_size)) {
61 ret = krb5_parse_name(context, utf8_name, principal);
66 #ifdef HAVE_KRB5_PARSE_NAME_NOREALM
67 /**************************************************************
68 krb5_parse_name_norealm that takes a UNIX charset.
69 **************************************************************/
71 static krb5_error_code smb_krb5_parse_name_norealm_conv(krb5_context context,
72 const char *name, /* in unix charset */
73 krb5_principal *principal)
77 size_t converted_size;
80 if (!push_utf8_allocate(&utf8_name, name, &converted_size)) {
84 ret = krb5_parse_name_norealm(context, utf8_name, principal);
90 /**************************************************************
91 krb5_parse_name that returns a UNIX charset name. Must
92 be freed with normal free() call.
93 **************************************************************/
95 krb5_error_code smb_krb5_unparse_name(krb5_context context,
96 krb5_const_principal principal,
101 size_t converted_size;
104 ret = krb5_unparse_name(context, principal, &utf8_name);
109 if (!pull_utf8_allocate(unix_name, utf8_name, &converted_size)) {
110 krb5_free_unparsed_name(context, utf8_name);
113 krb5_free_unparsed_name(context, utf8_name);
117 #ifndef HAVE_KRB5_SET_REAL_TIME
119 * This function is not in the Heimdal mainline.
121 krb5_error_code krb5_set_real_time(krb5_context context, int32_t seconds, int32_t microseconds)
126 ret = krb5_us_timeofday(context, &sec, &usec);
130 context->kdc_sec_offset = seconds - sec;
131 context->kdc_usec_offset = microseconds - usec;
137 #if !defined(HAVE_KRB5_SET_DEFAULT_TGS_KTYPES)
139 #if defined(HAVE_KRB5_SET_DEFAULT_TGS_ENCTYPES)
141 /* With MIT kerberos, we should use krb5_set_default_tgs_enctypes in preference
142 * to krb5_set_default_tgs_ktypes. See
143 * http://lists.samba.org/archive/samba-technical/2006-July/048271.html
145 * If the MIT libraries are not exporting internal symbols, we will end up in
146 * this branch, which is correct. Otherwise we will continue to use the
149 krb5_error_code krb5_set_default_tgs_ktypes(krb5_context ctx, const krb5_enctype *enc)
151 return krb5_set_default_tgs_enctypes(ctx, enc);
154 #elif defined(HAVE_KRB5_SET_DEFAULT_IN_TKT_ETYPES)
157 krb5_error_code krb5_set_default_tgs_ktypes(krb5_context ctx, const krb5_enctype *enc)
159 return krb5_set_default_in_tkt_etypes(ctx, enc);
162 #endif /* HAVE_KRB5_SET_DEFAULT_TGS_ENCTYPES */
164 #endif /* HAVE_KRB5_SET_DEFAULT_TGS_KTYPES */
166 #if defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS)
168 bool setup_kaddr( krb5_address *pkaddr, struct sockaddr_storage *paddr)
170 memset(pkaddr, '\0', sizeof(krb5_address));
171 #if defined(HAVE_IPV6) && defined(KRB5_ADDRESS_INET6)
172 if (paddr->ss_family == AF_INET6) {
173 pkaddr->addr_type = KRB5_ADDRESS_INET6;
174 pkaddr->address.length = sizeof(((struct sockaddr_in6 *)paddr)->sin6_addr);
175 pkaddr->address.data = (char *)&(((struct sockaddr_in6 *)paddr)->sin6_addr);
179 if (paddr->ss_family == AF_INET) {
180 pkaddr->addr_type = KRB5_ADDRESS_INET;
181 pkaddr->address.length = sizeof(((struct sockaddr_in *)paddr)->sin_addr);
182 pkaddr->address.data = (char *)&(((struct sockaddr_in *)paddr)->sin_addr);
187 #elif defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS)
189 bool setup_kaddr( krb5_address *pkaddr, struct sockaddr_storage *paddr)
191 memset(pkaddr, '\0', sizeof(krb5_address));
192 #if defined(HAVE_IPV6) && defined(ADDRTYPE_INET6)
193 if (paddr->ss_family == AF_INET6) {
194 pkaddr->addrtype = ADDRTYPE_INET6;
195 pkaddr->length = sizeof(((struct sockaddr_in6 *)paddr)->sin6_addr);
196 pkaddr->contents = (krb5_octet *)&(((struct sockaddr_in6 *)paddr)->sin6_addr);
200 if (paddr->ss_family == AF_INET) {
201 pkaddr->addrtype = ADDRTYPE_INET;
202 pkaddr->length = sizeof(((struct sockaddr_in *)paddr)->sin_addr);
203 pkaddr->contents = (krb5_octet *)&(((struct sockaddr_in *)paddr)->sin_addr);
209 #error UNKNOWN_ADDRTYPE
212 #if defined(HAVE_KRB5_PRINCIPAL2SALT) && defined(HAVE_KRB5_USE_ENCTYPE) && defined(HAVE_KRB5_STRING_TO_KEY) && defined(HAVE_KRB5_ENCRYPT_BLOCK)
213 static int create_kerberos_key_from_string_direct(krb5_context context,
214 krb5_principal host_princ,
217 krb5_enctype enctype,
222 krb5_encrypt_block eblock;
225 key->contents = (krb5_octet *)SMB_MALLOC(password->length);
226 if (!key->contents) {
229 memcpy(key->contents, password->data, password->length);
230 key->length = password->length;
231 key->enctype = enctype;
233 ret = krb5_principal2salt(context, host_princ, &salt);
235 DEBUG(1,("krb5_principal2salt failed (%s)\n", error_message(ret)));
238 krb5_use_enctype(context, &eblock, enctype);
239 ret = krb5_string_to_key(context, &eblock, key, password, &salt);
240 SAFE_FREE(salt.data);
244 #elif defined(HAVE_KRB5_GET_PW_SALT) && defined(HAVE_KRB5_STRING_TO_KEY_SALT)
245 static int create_kerberos_key_from_string_direct(krb5_context context,
246 krb5_principal host_princ,
249 krb5_enctype enctype,
256 return krb5_keyblock_init(context, enctype,
257 password->data, password->length,
260 ret = krb5_get_pw_salt(context, host_princ, &salt);
262 DEBUG(1,("krb5_get_pw_salt failed (%s)\n", error_message(ret)));
266 ret = krb5_string_to_key_salt(context, enctype, (const char *)password->data, salt, key);
267 krb5_free_salt(context, salt);
273 #error UNKNOWN_CREATE_KEY_FUNCTIONS
276 int create_kerberos_key_from_string(krb5_context context,
277 krb5_principal host_princ,
280 krb5_enctype enctype,
283 krb5_principal salt_princ = NULL;
286 * Check if we've determined that the KDC is salting keys for this
287 * principal/enctype in a non-obvious way. If it is, try to match
290 salt_princ = kerberos_fetch_salt_princ_for_host_princ(context, host_princ, enctype);
291 ret = create_kerberos_key_from_string_direct(context, salt_princ ? salt_princ : host_princ, password, key, enctype, no_salt);
293 krb5_free_principal(context, salt_princ);
298 #if defined(HAVE_KRB5_GET_PERMITTED_ENCTYPES)
299 krb5_error_code get_kerberos_allowed_etypes(krb5_context context,
300 krb5_enctype **enctypes)
302 return krb5_get_permitted_enctypes(context, enctypes);
304 #elif defined(HAVE_KRB5_GET_DEFAULT_IN_TKT_ETYPES)
305 krb5_error_code get_kerberos_allowed_etypes(krb5_context context,
306 krb5_enctype **enctypes)
308 return krb5_get_default_in_tkt_etypes(context, enctypes);
311 #error UNKNOWN_GET_ENCTYPES_FUNCTIONS
314 #if defined(HAVE_KRB5_AUTH_CON_SETKEY) && !defined(HAVE_KRB5_AUTH_CON_SETUSERUSERKEY)
315 krb5_error_code krb5_auth_con_setuseruserkey(krb5_context context,
316 krb5_auth_context auth_context,
317 krb5_keyblock *keyblock)
319 return krb5_auth_con_setkey(context, auth_context, keyblock);
323 bool unwrap_edata_ntstatus(TALLOC_CTX *mem_ctx,
325 DATA_BLOB *edata_out)
327 DATA_BLOB edata_contents;
331 if (!edata->length) {
335 asn1_load(&data, *edata);
336 asn1_start_tag(&data, ASN1_SEQUENCE(0));
337 asn1_start_tag(&data, ASN1_CONTEXT(1));
338 asn1_read_Integer(&data, &edata_type);
340 if (edata_type != KRB5_PADATA_PW_SALT) {
341 DEBUG(0,("edata is not of required type %d but of type %d\n",
342 KRB5_PADATA_PW_SALT, edata_type));
347 asn1_start_tag(&data, ASN1_CONTEXT(2));
348 asn1_read_OctetString(&data, &edata_contents);
354 *edata_out = data_blob_talloc(mem_ctx, edata_contents.data, edata_contents.length);
356 data_blob_free(&edata_contents);
362 bool unwrap_pac(TALLOC_CTX *mem_ctx, DATA_BLOB *auth_data, DATA_BLOB *unwrapped_pac_data)
364 DATA_BLOB pac_contents;
368 if (!auth_data->length) {
372 asn1_load(&data, *auth_data);
373 asn1_start_tag(&data, ASN1_SEQUENCE(0));
374 asn1_start_tag(&data, ASN1_SEQUENCE(0));
375 asn1_start_tag(&data, ASN1_CONTEXT(0));
376 asn1_read_Integer(&data, &data_type);
378 if (data_type != KRB5_AUTHDATA_WIN2K_PAC ) {
379 DEBUG(10,("authorization data is not a Windows PAC (type: %d)\n", data_type));
385 asn1_start_tag(&data, ASN1_CONTEXT(1));
386 asn1_read_OctetString(&data, &pac_contents);
392 *unwrapped_pac_data = data_blob_talloc(mem_ctx, pac_contents.data, pac_contents.length);
394 data_blob_free(&pac_contents);
399 bool get_auth_data_from_tkt(TALLOC_CTX *mem_ctx, DATA_BLOB *auth_data, krb5_ticket *tkt)
401 DATA_BLOB auth_data_wrapped;
402 bool got_auth_data_pac = False;
405 #if defined(HAVE_KRB5_TKT_ENC_PART2)
406 if (tkt->enc_part2 && tkt->enc_part2->authorization_data &&
407 tkt->enc_part2->authorization_data[0] &&
408 tkt->enc_part2->authorization_data[0]->length)
410 for (i = 0; tkt->enc_part2->authorization_data[i] != NULL; i++) {
412 if (tkt->enc_part2->authorization_data[i]->ad_type !=
413 KRB5_AUTHDATA_IF_RELEVANT) {
414 DEBUG(10,("get_auth_data_from_tkt: ad_type is %d\n",
415 tkt->enc_part2->authorization_data[i]->ad_type));
419 auth_data_wrapped = data_blob(tkt->enc_part2->authorization_data[i]->contents,
420 tkt->enc_part2->authorization_data[i]->length);
422 /* check if it is a PAC */
423 got_auth_data_pac = unwrap_pac(mem_ctx, &auth_data_wrapped, auth_data);
424 data_blob_free(&auth_data_wrapped);
426 if (got_auth_data_pac) {
431 return got_auth_data_pac;
435 if (tkt->ticket.authorization_data &&
436 tkt->ticket.authorization_data->len)
438 for (i = 0; i < tkt->ticket.authorization_data->len; i++) {
440 if (tkt->ticket.authorization_data->val[i].ad_type !=
441 KRB5_AUTHDATA_IF_RELEVANT) {
442 DEBUG(10,("get_auth_data_from_tkt: ad_type is %d\n",
443 tkt->ticket.authorization_data->val[i].ad_type));
447 auth_data_wrapped = data_blob(tkt->ticket.authorization_data->val[i].ad_data.data,
448 tkt->ticket.authorization_data->val[i].ad_data.length);
450 /* check if it is a PAC */
451 got_auth_data_pac = unwrap_pac(mem_ctx, &auth_data_wrapped, auth_data);
452 data_blob_free(&auth_data_wrapped);
454 if (got_auth_data_pac) {
459 return got_auth_data_pac;
465 krb5_const_principal get_principal_from_tkt(krb5_ticket *tkt)
467 #if defined(HAVE_KRB5_TKT_ENC_PART2)
468 return tkt->enc_part2->client;
474 #if !defined(HAVE_KRB5_LOCATE_KDC)
476 /* krb5_locate_kdc is an internal MIT symbol. MIT are not yet willing to commit
477 * to a public interface for this functionality, so we have to be able to live
478 * without it if the MIT libraries are hiding their internal symbols.
481 #if defined(KRB5_KRBHST_INIT)
483 krb5_error_code smb_krb5_locate_kdc(krb5_context ctx, const krb5_data *realm, struct sockaddr **addr_pp, int *naddrs, int get_masters)
485 krb5_krbhst_handle hnd;
486 krb5_krbhst_info *hinfo;
495 rc = krb5_krbhst_init(ctx, realm->data, KRB5_KRBHST_KDC, &hnd);
497 DEBUG(0, ("smb_krb5_locate_kdc: krb5_krbhst_init failed (%s)\n", error_message(rc)));
501 for ( num_kdcs = 0; (rc = krb5_krbhst_next(ctx, hnd, &hinfo) == 0); num_kdcs++)
504 krb5_krbhst_reset(ctx, hnd);
507 DEBUG(0, ("smb_krb5_locate_kdc: zero kdcs found !\n"));
508 krb5_krbhst_free(ctx, hnd);
512 sa = SMB_MALLOC_ARRAY( struct sockaddr, num_kdcs );
514 DEBUG(0, ("smb_krb5_locate_kdc: malloc failed\n"));
515 krb5_krbhst_free(ctx, hnd);
520 memset(sa, '\0', sizeof(struct sockaddr) * num_kdcs );
522 for (i = 0; i < num_kdcs && (rc = krb5_krbhst_next(ctx, hnd, &hinfo) == 0); i++) {
524 #if defined(HAVE_KRB5_KRBHST_GET_ADDRINFO)
525 rc = krb5_krbhst_get_addrinfo(ctx, hinfo, &ai);
527 DEBUG(0,("krb5_krbhst_get_addrinfo failed: %s\n", error_message(rc)));
531 if (hinfo->ai && hinfo->ai->ai_family == AF_INET)
532 memcpy(&sa[i], hinfo->ai->ai_addr, sizeof(struct sockaddr));
535 krb5_krbhst_free(ctx, hnd);
542 #else /* ! defined(KRB5_KRBHST_INIT) */
544 krb5_error_code smb_krb5_locate_kdc(krb5_context ctx, const krb5_data *realm,
545 struct sockaddr **addr_pp, int *naddrs, int get_masters)
547 DEBUG(0, ("unable to explicitly locate the KDC on this platform\n"));
548 return KRB5_KDC_UNREACH;
551 #endif /* KRB5_KRBHST_INIT */
553 #else /* ! HAVE_KRB5_LOCATE_KDC */
555 krb5_error_code smb_krb5_locate_kdc(krb5_context ctx, const krb5_data *realm,
556 struct sockaddr **addr_pp, int *naddrs, int get_masters)
558 return krb5_locate_kdc(ctx, realm, addr_pp, naddrs, get_masters);
561 #endif /* HAVE_KRB5_LOCATE_KDC */
563 #if !defined(HAVE_KRB5_FREE_UNPARSED_NAME)
564 void krb5_free_unparsed_name(krb5_context context, char *val)
570 void kerberos_free_data_contents(krb5_context context, krb5_data *pdata)
572 #if defined(HAVE_KRB5_FREE_DATA_CONTENTS)
574 krb5_free_data_contents(context, pdata);
577 SAFE_FREE(pdata->data);
581 void kerberos_set_creds_enctype(krb5_creds *pcreds, int enctype)
583 #if defined(HAVE_KRB5_KEYBLOCK_IN_CREDS)
584 KRB5_KEY_TYPE((&pcreds->keyblock)) = enctype;
585 #elif defined(HAVE_KRB5_SESSION_IN_CREDS)
586 KRB5_KEY_TYPE((&pcreds->session)) = enctype;
588 #error UNKNOWN_KEYBLOCK_MEMBER_IN_KRB5_CREDS_STRUCT
592 bool kerberos_compatible_enctypes(krb5_context context,
593 krb5_enctype enctype1,
594 krb5_enctype enctype2)
596 #if defined(HAVE_KRB5_C_ENCTYPE_COMPARE)
597 krb5_boolean similar = 0;
599 krb5_c_enctype_compare(context, enctype1, enctype2, &similar);
600 return similar ? True : False;
601 #elif defined(HAVE_KRB5_ENCTYPES_COMPATIBLE_KEYS)
602 return krb5_enctypes_compatible_keys(context, enctype1, enctype2) ? True : False;
606 static bool ads_cleanup_expired_creds(krb5_context context,
610 krb5_error_code retval;
611 const char *cc_type = krb5_cc_get_type(context, ccache);
613 DEBUG(3, ("ads_cleanup_expired_creds: Ticket in ccache[%s:%s] expiration %s\n",
614 cc_type, krb5_cc_get_name(context, ccache),
615 http_timestring(credsp->times.endtime)));
617 /* we will probably need new tickets if the current ones
618 will expire within 10 seconds.
620 if (credsp->times.endtime >= (time(NULL) + 10))
623 /* heimdal won't remove creds from a file ccache, and
624 perhaps we shouldn't anyway, since internally we
625 use memory ccaches, and a FILE one probably means that
626 we're using creds obtained outside of our exectuable
628 if (strequal(cc_type, "FILE")) {
629 DEBUG(5, ("ads_cleanup_expired_creds: We do not remove creds from a %s ccache\n", cc_type));
633 retval = krb5_cc_remove_cred(context, ccache, 0, credsp);
635 DEBUG(1, ("ads_cleanup_expired_creds: krb5_cc_remove_cred failed, err %s\n",
636 error_message(retval)));
637 /* If we have an error in this, we want to display it,
638 but continue as though we deleted it */
644 we can't use krb5_mk_req because w2k wants the service to be in a particular format
646 static krb5_error_code ads_krb5_mk_req(krb5_context context,
647 krb5_auth_context *auth_context,
648 const krb5_flags ap_req_options,
649 const char *principal,
654 krb5_error_code retval;
655 krb5_principal server;
659 bool creds_ready = False;
660 int i = 0, maxtries = 3;
662 retval = smb_krb5_parse_name(context, principal, &server);
664 DEBUG(1,("ads_krb5_mk_req: Failed to parse principal %s\n", principal));
668 /* obtain ticket & session key */
670 if ((retval = krb5_copy_principal(context, server, &creds.server))) {
671 DEBUG(1,("ads_krb5_mk_req: krb5_copy_principal failed (%s)\n",
672 error_message(retval)));
676 if ((retval = krb5_cc_get_principal(context, ccache, &creds.client))) {
677 /* This can commonly fail on smbd startup with no ticket in the cache.
678 * Report at higher level than 1. */
679 DEBUG(3,("ads_krb5_mk_req: krb5_cc_get_principal failed (%s)\n",
680 error_message(retval)));
684 while (!creds_ready && (i < maxtries)) {
686 if ((retval = krb5_get_credentials(context, 0, ccache,
688 DEBUG(1,("ads_krb5_mk_req: krb5_get_credentials failed for %s (%s)\n",
689 principal, error_message(retval)));
693 /* cope with ticket being in the future due to clock skew */
694 if ((unsigned)credsp->times.starttime > time(NULL)) {
695 time_t t = time(NULL);
696 int time_offset =(int)((unsigned)credsp->times.starttime-t);
697 DEBUG(4,("ads_krb5_mk_req: Advancing clock by %d seconds to cope with clock skew\n", time_offset));
698 krb5_set_real_time(context, t + time_offset + 1, 0);
701 if (!ads_cleanup_expired_creds(context, ccache, credsp)) {
708 DEBUG(10,("ads_krb5_mk_req: Ticket (%s) in ccache (%s:%s) is valid until: (%s - %u)\n",
709 principal, krb5_cc_get_type(context, ccache), krb5_cc_get_name(context, ccache),
710 http_timestring((unsigned)credsp->times.endtime),
711 (unsigned)credsp->times.endtime));
714 *expire_time = (time_t)credsp->times.endtime;
718 retval = krb5_mk_req_extended(context, auth_context, ap_req_options,
719 &in_data, credsp, outbuf);
721 DEBUG(1,("ads_krb5_mk_req: krb5_mk_req_extended failed (%s)\n",
722 error_message(retval)));
725 krb5_free_creds(context, credsp);
728 krb5_free_cred_contents(context, &creds);
731 krb5_free_principal(context, server);
737 get a kerberos5 ticket for the given service
739 int cli_krb5_get_ticket(const char *principal, time_t time_offset,
740 DATA_BLOB *ticket, DATA_BLOB *session_key_krb5,
741 uint32 extra_ap_opts, const char *ccname,
745 krb5_error_code retval;
747 krb5_context context = NULL;
748 krb5_ccache ccdef = NULL;
749 krb5_auth_context auth_context = NULL;
750 krb5_enctype enc_types[] = {
751 #ifdef ENCTYPE_ARCFOUR_HMAC
752 ENCTYPE_ARCFOUR_HMAC,
758 initialize_krb5_error_table();
759 retval = krb5_init_context(&context);
761 DEBUG(1,("cli_krb5_get_ticket: krb5_init_context failed (%s)\n",
762 error_message(retval)));
766 if (time_offset != 0) {
767 krb5_set_real_time(context, time(NULL) + time_offset, 0);
770 if ((retval = krb5_cc_resolve(context, ccname ?
771 ccname : krb5_cc_default_name(context), &ccdef))) {
772 DEBUG(1,("cli_krb5_get_ticket: krb5_cc_default failed (%s)\n",
773 error_message(retval)));
777 if ((retval = krb5_set_default_tgs_ktypes(context, enc_types))) {
778 DEBUG(1,("cli_krb5_get_ticket: krb5_set_default_tgs_ktypes failed (%s)\n",
779 error_message(retval)));
783 if ((retval = ads_krb5_mk_req(context,
785 AP_OPTS_USE_SUBKEY | (krb5_flags)extra_ap_opts,
792 get_krb5_smb_session_key(context, auth_context, session_key_krb5, False);
794 *ticket = data_blob(packet.data, packet.length);
796 kerberos_free_data_contents(context, &packet);
802 krb5_cc_close(context, ccdef);
804 krb5_auth_con_free(context, auth_context);
805 krb5_free_context(context);
811 bool get_krb5_smb_session_key(krb5_context context, krb5_auth_context auth_context, DATA_BLOB *session_key, bool remote)
818 err = krb5_auth_con_getremotesubkey(context, auth_context, &skey);
820 err = krb5_auth_con_getlocalsubkey(context, auth_context, &skey);
821 if (err == 0 && skey != NULL) {
822 DEBUG(10, ("Got KRB5 session key of length %d\n", (int)KRB5_KEY_LENGTH(skey)));
823 *session_key = data_blob(KRB5_KEY_DATA(skey), KRB5_KEY_LENGTH(skey));
824 dump_data_pw("KRB5 Session Key:\n", session_key->data, session_key->length);
828 krb5_free_keyblock(context, skey);
830 DEBUG(10, ("KRB5 error getting session key %d\n", err));
837 #if defined(HAVE_KRB5_PRINCIPAL_GET_COMP_STRING) && !defined(HAVE_KRB5_PRINC_COMPONENT)
838 const krb5_data *krb5_princ_component(krb5_context context, krb5_principal principal, int i );
840 const krb5_data *krb5_princ_component(krb5_context context, krb5_principal principal, int i )
842 static krb5_data kdata;
844 kdata.data = (char *)krb5_principal_get_comp_string(context, principal, i);
845 kdata.length = strlen((const char *)kdata.data);
850 krb5_error_code smb_krb5_kt_free_entry(krb5_context context, krb5_keytab_entry *kt_entry)
852 #if defined(HAVE_KRB5_KT_FREE_ENTRY)
853 return krb5_kt_free_entry(context, kt_entry);
854 #elif defined(HAVE_KRB5_FREE_KEYTAB_ENTRY_CONTENTS)
855 return krb5_free_keytab_entry_contents(context, kt_entry);
857 #error UNKNOWN_KT_FREE_FUNCTION
861 void smb_krb5_checksum_from_pac_sig(krb5_checksum *cksum,
862 struct PAC_SIGNATURE_DATA *sig)
864 #ifdef HAVE_CHECKSUM_IN_KRB5_CHECKSUM
865 cksum->cksumtype = (krb5_cksumtype)sig->type;
866 cksum->checksum.length = sig->signature.length;
867 cksum->checksum.data = sig->signature.data;
869 cksum->checksum_type = (krb5_cksumtype)sig->type;
870 cksum->length = sig->signature.length;
871 cksum->contents = sig->signature.data;
875 krb5_error_code smb_krb5_verify_checksum(krb5_context context,
876 const krb5_keyblock *keyblock,
878 krb5_checksum *cksum,
884 /* verify the checksum */
886 /* welcome to the wonderful world of samba's kerberos abstraction layer:
888 * function heimdal 0.6.1rc3 heimdal 0.7 MIT krb 1.4.2
889 * -----------------------------------------------------------------------------
890 * krb5_c_verify_checksum - works works
891 * krb5_verify_checksum works (6 args) works (6 args) broken (7 args)
894 #if defined(HAVE_KRB5_C_VERIFY_CHECKSUM)
896 krb5_boolean checksum_valid = False;
899 input.data = (char *)data;
900 input.length = length;
902 ret = krb5_c_verify_checksum(context,
909 DEBUG(3,("smb_krb5_verify_checksum: krb5_c_verify_checksum() failed: %s\n",
910 error_message(ret)));
915 ret = KRB5KRB_AP_ERR_BAD_INTEGRITY;
918 #elif KRB5_VERIFY_CHECKSUM_ARGS == 6 && defined(HAVE_KRB5_CRYPTO_INIT) && defined(HAVE_KRB5_CRYPTO) && defined(HAVE_KRB5_CRYPTO_DESTROY)
920 /* Warning: MIT's krb5_verify_checksum cannot be used as it will use a key
921 * without enctype and it ignores any key_usage types - Guenther */
926 ret = krb5_crypto_init(context,
931 DEBUG(0,("smb_krb5_verify_checksum: krb5_crypto_init() failed: %s\n",
932 error_message(ret)));
936 ret = krb5_verify_checksum(context,
943 krb5_crypto_destroy(context, crypto);
947 #error UNKNOWN_KRB5_VERIFY_CHECKSUM_FUNCTION
953 time_t get_authtime_from_tkt(krb5_ticket *tkt)
955 #if defined(HAVE_KRB5_TKT_ENC_PART2)
956 return tkt->enc_part2->times.authtime;
958 return tkt->ticket.authtime;
962 #ifdef HAVE_KRB5_DECODE_AP_REQ /* Heimdal */
963 static int get_kvno_from_ap_req(krb5_ap_req *ap_req)
965 #ifdef HAVE_TICKET_POINTER_IN_KRB5_AP_REQ /* MIT */
966 if (ap_req->ticket->enc_part.kvno)
967 return ap_req->ticket->enc_part.kvno;
969 if (ap_req->ticket.enc_part.kvno)
970 return *ap_req->ticket.enc_part.kvno;
975 static krb5_enctype get_enctype_from_ap_req(krb5_ap_req *ap_req)
977 #ifdef HAVE_ETYPE_IN_ENCRYPTEDDATA /* Heimdal */
978 return ap_req->ticket.enc_part.etype;
980 return ap_req->ticket->enc_part.enctype;
983 #endif /* HAVE_KRB5_DECODE_AP_REQ */
985 static krb5_error_code
986 get_key_from_keytab(krb5_context context,
987 krb5_const_principal server,
988 krb5_enctype enctype,
990 krb5_keyblock **out_key)
992 krb5_keytab_entry entry;
997 /* We have to open a new keytab handle here, as MIT does
998 an implicit open/getnext/close on krb5_kt_get_entry. We
999 may be in the middle of a keytab enumeration when this is
1002 ret = smb_krb5_open_keytab(context, NULL, False, &keytab);
1004 DEBUG(1,("get_key_from_keytab: smb_krb5_open_keytab failed (%s)\n", error_message(ret)));
1008 if ( DEBUGLEVEL >= 10 ) {
1009 if (smb_krb5_unparse_name(context, server, &name) == 0) {
1010 DEBUG(10,("get_key_from_keytab: will look for kvno %d, enctype %d and name: %s\n",
1011 kvno, enctype, name));
1016 ret = krb5_kt_get_entry(context,
1024 DEBUG(0,("get_key_from_keytab: failed to retrieve key: %s\n", error_message(ret)));
1028 #ifdef HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK /* Heimdal */
1029 ret = krb5_copy_keyblock(context, &entry.keyblock, out_key);
1030 #elif defined(HAVE_KRB5_KEYTAB_ENTRY_KEY) /* MIT */
1031 ret = krb5_copy_keyblock(context, &entry.key, out_key);
1033 #error UNKNOWN_KRB5_KEYTAB_ENTRY_FORMAT
1037 DEBUG(0,("get_key_from_keytab: failed to copy key: %s\n", error_message(ret)));
1041 smb_krb5_kt_free_entry(context, &entry);
1044 krb5_kt_close(context, keytab);
1050 krb5_error_code smb_krb5_get_keyinfo_from_ap_req(krb5_context context,
1051 const krb5_data *inbuf,
1053 krb5_enctype *enctype)
1055 #ifdef HAVE_KRB5_DECODE_AP_REQ /* Heimdal */
1057 krb5_error_code ret;
1060 ret = krb5_decode_ap_req(context, inbuf, &ap_req);
1064 *kvno = get_kvno_from_ap_req(&ap_req);
1065 *enctype = get_enctype_from_ap_req(&ap_req);
1067 free_AP_REQ(&ap_req);
1072 /* Possibly not an appropriate error code. */
1073 return KRB5KDC_ERR_BADOPTION;
1076 krb5_error_code krb5_rd_req_return_keyblock_from_keytab(krb5_context context,
1077 krb5_auth_context *auth_context,
1078 const krb5_data *inbuf,
1079 krb5_const_principal server,
1081 krb5_flags *ap_req_options,
1082 krb5_ticket **ticket,
1083 krb5_keyblock **keyblock)
1085 krb5_error_code ret;
1087 krb5_enctype enctype;
1088 krb5_keyblock *local_keyblock;
1090 ret = krb5_rd_req(context,
1101 #ifdef KRB5_TICKET_HAS_KEYINFO
1102 enctype = (*ticket)->enc_part.enctype;
1103 kvno = (*ticket)->enc_part.kvno;
1105 ret = smb_krb5_get_keyinfo_from_ap_req(context, inbuf, &kvno, &enctype);
1111 ret = get_key_from_keytab(context,
1117 DEBUG(0,("krb5_rd_req_return_keyblock_from_keytab: failed to call get_key_from_keytab\n"));
1122 if (ret && local_keyblock != NULL) {
1123 krb5_free_keyblock(context, local_keyblock);
1125 *keyblock = local_keyblock;
1131 krb5_error_code smb_krb5_parse_name_norealm(krb5_context context,
1133 krb5_principal *principal)
1135 #ifdef HAVE_KRB5_PARSE_NAME_NOREALM
1136 return smb_krb5_parse_name_norealm_conv(context, name, principal);
1139 /* we are cheating here because parse_name will in fact set the realm.
1140 * We don't care as the only caller of smb_krb5_parse_name_norealm
1141 * ignores the realm anyway when calling
1142 * smb_krb5_principal_compare_any_realm later - Guenther */
1144 return smb_krb5_parse_name(context, name, principal);
1147 bool smb_krb5_principal_compare_any_realm(krb5_context context,
1148 krb5_const_principal princ1,
1149 krb5_const_principal princ2)
1151 #ifdef HAVE_KRB5_PRINCIPAL_COMPARE_ANY_REALM
1153 return krb5_principal_compare_any_realm(context, princ1, princ2);
1155 /* krb5_princ_size is a macro in MIT */
1156 #elif defined(HAVE_KRB5_PRINC_SIZE) || defined(krb5_princ_size)
1159 const krb5_data *p1, *p2;
1161 len1 = krb5_princ_size(context, princ1);
1162 len2 = krb5_princ_size(context, princ2);
1167 for (i = 0; i < len1; i++) {
1169 p1 = krb5_princ_component(context, CONST_DISCARD(krb5_principal, princ1), i);
1170 p2 = krb5_princ_component(context, CONST_DISCARD(krb5_principal, princ2), i);
1172 if (p1->length != p2->length || memcmp(p1->data, p2->data, p1->length))
1178 #error NO_SUITABLE_PRINCIPAL_COMPARE_FUNCTION
1182 krb5_error_code smb_krb5_renew_ticket(const char *ccache_string, /* FILE:/tmp/krb5cc_0 */
1183 const char *client_string, /* gd@BER.SUSE.DE */
1184 const char *service_string, /* krbtgt/BER.SUSE.DE@BER.SUSE.DE */
1185 time_t *expire_time)
1187 krb5_error_code ret;
1188 krb5_context context = NULL;
1189 krb5_ccache ccache = NULL;
1190 krb5_principal client = NULL;
1191 krb5_creds creds, creds_in, *creds_out = NULL;
1194 ZERO_STRUCT(creds_in);
1196 initialize_krb5_error_table();
1197 ret = krb5_init_context(&context);
1202 if (!ccache_string) {
1203 ccache_string = krb5_cc_default_name(context);
1206 if (!ccache_string) {
1211 DEBUG(10,("smb_krb5_renew_ticket: using %s as ccache\n", ccache_string));
1213 /* FIXME: we should not fall back to defaults */
1214 ret = krb5_cc_resolve(context, CONST_DISCARD(char *, ccache_string), &ccache);
1219 if (client_string) {
1220 ret = smb_krb5_parse_name(context, client_string, &client);
1225 ret = krb5_cc_get_principal(context, ccache, &client);
1231 #ifdef HAVE_KRB5_GET_RENEWED_CREDS /* MIT */
1233 ret = krb5_get_renewed_creds(context, &creds, client, ccache, CONST_DISCARD(char *, service_string));
1235 DEBUG(10,("smb_krb5_renew_ticket: krb5_get_kdc_cred failed: %s\n", error_message(ret)));
1239 #elif defined(HAVE_KRB5_GET_KDC_CRED) /* Heimdal */
1241 krb5_kdc_flags flags;
1242 krb5_realm *client_realm = NULL;
1244 ret = krb5_copy_principal(context, client, &creds_in.client);
1249 if (service_string) {
1250 ret = smb_krb5_parse_name(context, service_string, &creds_in.server);
1255 /* build tgt service by default */
1256 client_realm = krb5_princ_realm(context, creds_in.client);
1257 if (!client_realm) {
1261 ret = krb5_make_principal(context, &creds_in.server, *client_realm, KRB5_TGS_NAME, *client_realm, NULL);
1268 flags.b.renewable = flags.b.renew = True;
1270 ret = krb5_get_kdc_cred(context, ccache, flags, NULL, NULL, &creds_in, &creds_out);
1272 DEBUG(10,("smb_krb5_renew_ticket: krb5_get_kdc_cred failed: %s\n", error_message(ret)));
1279 #error NO_SUITABLE_KRB5_TICKET_RENEW_FUNCTION_AVAILABLE
1282 /* hm, doesn't that create a new one if the old one wasn't there? - Guenther */
1283 ret = krb5_cc_initialize(context, ccache, client);
1288 ret = krb5_cc_store_cred(context, ccache, &creds);
1291 *expire_time = (time_t) creds.times.endtime;
1295 krb5_free_cred_contents(context, &creds_in);
1298 krb5_free_creds(context, creds_out);
1300 krb5_free_cred_contents(context, &creds);
1304 krb5_free_principal(context, client);
1307 krb5_cc_close(context, ccache);
1310 krb5_free_context(context);
1316 krb5_error_code smb_krb5_free_addresses(krb5_context context, smb_krb5_addresses *addr)
1318 krb5_error_code ret = 0;
1322 #if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
1323 krb5_free_addresses(context, addr->addrs);
1324 #elif defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS) /* Heimdal */
1325 ret = krb5_free_addresses(context, addr->addrs);
1326 SAFE_FREE(addr->addrs);
1333 krb5_error_code smb_krb5_gen_netbios_krb5_address(smb_krb5_addresses **kerb_addr)
1335 krb5_error_code ret = 0;
1337 #if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
1338 krb5_address **addrs = NULL;
1339 #elif defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS) /* Heimdal */
1340 krb5_addresses *addrs = NULL;
1343 *kerb_addr = (smb_krb5_addresses *)SMB_MALLOC(sizeof(smb_krb5_addresses));
1344 if (*kerb_addr == NULL) {
1348 put_name(buf, global_myname(), ' ', 0x20);
1350 #if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
1354 addrs = (krb5_address **)SMB_MALLOC(sizeof(krb5_address *) * num_addr);
1355 if (addrs == NULL) {
1356 SAFE_FREE(kerb_addr);
1360 memset(addrs, 0, sizeof(krb5_address *) * num_addr);
1362 addrs[0] = (krb5_address *)SMB_MALLOC(sizeof(krb5_address));
1363 if (addrs[0] == NULL) {
1365 SAFE_FREE(kerb_addr);
1369 addrs[0]->magic = KV5M_ADDRESS;
1370 addrs[0]->addrtype = KRB5_ADDR_NETBIOS;
1371 addrs[0]->length = MAX_NETBIOSNAME_LEN;
1372 addrs[0]->contents = (unsigned char *)SMB_MALLOC(addrs[0]->length);
1373 if (addrs[0]->contents == NULL) {
1374 SAFE_FREE(addrs[0]);
1376 SAFE_FREE(kerb_addr);
1380 memcpy(addrs[0]->contents, buf, addrs[0]->length);
1384 #elif defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS) /* Heimdal */
1386 addrs = (krb5_addresses *)SMB_MALLOC(sizeof(krb5_addresses));
1387 if (addrs == NULL) {
1388 SAFE_FREE(kerb_addr);
1392 memset(addrs, 0, sizeof(krb5_addresses));
1395 addrs->val = (krb5_address *)SMB_MALLOC(sizeof(krb5_address));
1396 if (addrs->val == NULL) {
1398 SAFE_FREE(kerb_addr);
1402 addrs->val[0].addr_type = KRB5_ADDR_NETBIOS;
1403 addrs->val[0].address.length = MAX_NETBIOSNAME_LEN;
1404 addrs->val[0].address.data = (unsigned char *)SMB_MALLOC(addrs->val[0].address.length);
1405 if (addrs->val[0].address.data == NULL) {
1406 SAFE_FREE(addrs->val);
1408 SAFE_FREE(kerb_addr);
1412 memcpy(addrs->val[0].address.data, buf, addrs->val[0].address.length);
1415 #error UNKNOWN_KRB5_ADDRESS_FORMAT
1417 (*kerb_addr)->addrs = addrs;
1422 void smb_krb5_free_error(krb5_context context, krb5_error *krberror)
1424 #ifdef HAVE_KRB5_FREE_ERROR_CONTENTS /* Heimdal */
1425 krb5_free_error_contents(context, krberror);
1427 krb5_free_error(context, krberror);
1431 krb5_error_code handle_krberror_packet(krb5_context context,
1434 krb5_error_code ret;
1435 bool got_error_code = False;
1437 DEBUG(10,("handle_krberror_packet: got error packet\n"));
1439 #ifdef HAVE_E_DATA_POINTER_IN_KRB5_ERROR /* Heimdal */
1441 krb5_error krberror;
1443 if ((ret = krb5_rd_error(context, packet, &krberror))) {
1444 DEBUG(10,("handle_krberror_packet: krb5_rd_error failed with: %s\n",
1445 error_message(ret)));
1449 if (krberror.e_data == NULL || krberror.e_data->data == NULL) {
1450 ret = (krb5_error_code) krberror.error_code;
1451 got_error_code = True;
1454 smb_krb5_free_error(context, &krberror);
1458 krb5_error *krberror;
1460 if ((ret = krb5_rd_error(context, packet, &krberror))) {
1461 DEBUG(10,("handle_krberror_packet: krb5_rd_error failed with: %s\n",
1462 error_message(ret)));
1466 if (krberror->e_data.data == NULL) {
1467 ret = ERROR_TABLE_BASE_krb5 + (krb5_error_code) krberror->error;
1468 got_error_code = True;
1470 smb_krb5_free_error(context, krberror);
1473 if (got_error_code) {
1474 DEBUG(5,("handle_krberror_packet: got KERBERR from kpasswd: %s (%d)\n",
1475 error_message(ret), ret));
1480 krb5_error_code smb_krb5_get_init_creds_opt_alloc(krb5_context context,
1481 krb5_get_init_creds_opt **opt)
1483 #ifdef HAVE_KRB5_GET_INIT_CREDS_OPT_ALLOC
1484 /* Heimdal or modern MIT version */
1485 return krb5_get_init_creds_opt_alloc(context, opt);
1487 /* Historical MIT version */
1488 krb5_get_init_creds_opt *my_opt;
1492 if ((my_opt = SMB_MALLOC_P(krb5_get_init_creds_opt)) == NULL) {
1496 krb5_get_init_creds_opt_init(my_opt);
1500 #endif /* HAVE_KRB5_GET_INIT_CREDS_OPT_ALLOC */
1503 void smb_krb5_get_init_creds_opt_free(krb5_context context,
1504 krb5_get_init_creds_opt *opt)
1506 #ifdef HAVE_KRB5_GET_INIT_CREDS_OPT_FREE
1508 #ifdef KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT
1509 /* Modern MIT or Heimdal version */
1510 krb5_get_init_creds_opt_free(context, opt);
1512 /* Heimdal version */
1513 krb5_get_init_creds_opt_free(opt);
1514 #endif /* KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT */
1516 #else /* HAVE_KRB5_GET_INIT_CREDS_OPT_FREE */
1517 /* Historical MIT version */
1520 #endif /* HAVE_KRB5_GET_INIT_CREDS_OPT_FREE */
1523 krb5_enctype smb_get_enctype_from_kt_entry(const krb5_keytab_entry *kt_entry)
1525 #ifdef HAVE_KRB5_KEYTAB_ENTRY_KEY /* MIT */
1526 return kt_entry->key.enctype;
1527 #elif defined(HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK) /* Heimdal */
1528 return kt_entry->keyblock.keytype;
1530 #error UNKNOWN_KRB5_KEYTAB_ENTRY_KEYBLOCK_FORMAT
1535 /* caller needs to free etype_s */
1536 krb5_error_code smb_krb5_enctype_to_string(krb5_context context,
1537 krb5_enctype enctype,
1540 #ifdef HAVE_KRB5_ENCTYPE_TO_STRING_WITH_KRB5_CONTEXT_ARG
1541 return krb5_enctype_to_string(context, enctype, etype_s); /* Heimdal */
1542 #elif defined(HAVE_KRB5_ENCTYPE_TO_STRING_WITH_SIZE_T_ARG)
1544 krb5_error_code ret = krb5_enctype_to_string(enctype, buf, 256); /* MIT */
1548 *etype_s = SMB_STRDUP(buf);
1554 #error UNKNOWN_KRB5_ENCTYPE_TO_STRING_FUNCTION
1558 krb5_error_code smb_krb5_mk_error(krb5_context context,
1559 krb5_error_code error_code,
1560 const krb5_principal server,
1563 #ifdef HAVE_SHORT_KRB5_MK_ERROR_INTERFACE /* MIT */
1565 * The MIT interface is *terrible*.
1566 * We have to construct this ourselves...
1570 memset(&e, 0, sizeof(e));
1571 krb5_us_timeofday(context, &e.stime, &e.susec);
1573 #if defined(krb5_err_base)
1574 e.error = error_code - krb5_err_base;
1575 #elif defined(ERROR_TABLE_BASE_krb5)
1576 e.error = error_code - ERROR_TABLE_BASE_krb5;
1578 e.error = error_code; /* Almost certainly wrong, but what can we do... ? */
1581 return krb5_mk_error(context, &e, reply);
1582 #else /* Heimdal. */
1583 return krb5_mk_error(context,
1595 /**********************************************************************
1596 * Open a krb5 keytab with flags, handles readonly or readwrite access and
1597 * allows to process non-default keytab names.
1598 * @param context krb5_context
1599 * @param keytab_name_req string
1600 * @param write_access bool if writable keytab is required
1601 * @param krb5_keytab pointer to krb5_keytab (close with krb5_kt_close())
1602 * @return krb5_error_code
1603 **********************************************************************/
1605 /* This MAX_NAME_LEN is a constant defined in krb5.h */
1606 #ifndef MAX_KEYTAB_NAME_LEN
1607 #define MAX_KEYTAB_NAME_LEN 1100
1610 krb5_error_code smb_krb5_open_keytab(krb5_context context,
1611 const char *keytab_name_req,
1613 krb5_keytab *keytab)
1615 krb5_error_code ret = 0;
1616 TALLOC_CTX *mem_ctx;
1617 char keytab_string[MAX_KEYTAB_NAME_LEN];
1618 char *kt_str = NULL;
1619 bool found_valid_name = False;
1620 const char *pragma = "FILE";
1621 const char *tmp = NULL;
1623 if (!write_access && !keytab_name_req) {
1624 /* caller just wants to read the default keytab readonly, so be it */
1625 return krb5_kt_default(context, keytab);
1628 mem_ctx = talloc_init("smb_krb5_open_keytab");
1633 #ifdef HAVE_WRFILE_KEYTAB
1639 if (keytab_name_req) {
1641 if (strlen(keytab_name_req) > MAX_KEYTAB_NAME_LEN) {
1642 ret = KRB5_CONFIG_NOTENUFSPACE;
1646 if ((strncmp(keytab_name_req, "WRFILE:/", 8) == 0) ||
1647 (strncmp(keytab_name_req, "FILE:/", 6) == 0)) {
1648 tmp = keytab_name_req;
1652 if (keytab_name_req[0] != '/') {
1653 ret = KRB5_KT_BADNAME;
1657 tmp = talloc_asprintf(mem_ctx, "%s:%s", pragma, keytab_name_req);
1666 /* we need to handle more complex keytab_strings, like:
1667 * "ANY:FILE:/etc/krb5.keytab,krb4:/etc/srvtab" */
1669 ret = krb5_kt_default_name(context, &keytab_string[0], MAX_KEYTAB_NAME_LEN - 2);
1674 DEBUG(10,("smb_krb5_open_keytab: krb5_kt_default_name returned %s\n", keytab_string));
1676 tmp = talloc_strdup(mem_ctx, keytab_string);
1682 if (strncmp(tmp, "ANY:", 4) == 0) {
1686 memset(&keytab_string, '\0', sizeof(keytab_string));
1688 while (next_token_talloc(mem_ctx, &tmp, &kt_str, ",")) {
1689 if (strncmp(kt_str, "WRFILE:", 7) == 0) {
1690 found_valid_name = True;
1695 if (strncmp(kt_str, "FILE:", 5) == 0) {
1696 found_valid_name = True;
1701 if (found_valid_name) {
1702 if (tmp[0] != '/') {
1703 ret = KRB5_KT_BADNAME;
1707 tmp = talloc_asprintf(mem_ctx, "%s:%s", pragma, tmp);
1716 if (!found_valid_name) {
1717 ret = KRB5_KT_UNKNOWN_TYPE;
1722 DEBUG(10,("smb_krb5_open_keytab: resolving: %s\n", tmp));
1723 ret = krb5_kt_resolve(context, tmp, keytab);
1726 TALLOC_FREE(mem_ctx);
1730 krb5_error_code smb_krb5_keytab_name(TALLOC_CTX *mem_ctx,
1731 krb5_context context,
1733 const char **keytab_name)
1735 char keytab_string[MAX_KEYTAB_NAME_LEN];
1736 krb5_error_code ret = 0;
1738 ret = krb5_kt_get_name(context, keytab,
1739 keytab_string, MAX_KEYTAB_NAME_LEN - 2);
1744 *keytab_name = talloc_strdup(mem_ctx, keytab_string);
1745 if (!*keytab_name) {
1752 #else /* HAVE_KRB5 */
1753 /* this saves a few linking headaches */
1754 int cli_krb5_get_ticket(const char *principal, time_t time_offset,
1755 DATA_BLOB *ticket, DATA_BLOB *session_key_krb5, uint32 extra_ap_opts,
1756 const char *ccname, time_t *tgs_expire)
1758 DEBUG(0,("NO KERBEROS SUPPORT\n"));