?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
examples/VFS: fix skel_transparent.c in reference to shadow_copy changes
[Samba/gebeck_regimport.git] / source3 / libsmb / clikrb5.c
blobb11aed8c7b2d71ec694e845367d647d12bb6cd98
1 /*
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 2005-2009
8
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.
13
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.
18
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/>.
21 */
22
23 #include "includes.h"
24 #include "smb_krb5.h"
25 #include "../librpc/gen_ndr/krb5pac.h"
26 #include "../lib/util/asn1.h"
27 #include "libsmb/nmblib.h"
28
29 #ifndef KRB5_AUTHDATA_WIN2K_PAC
30 #define KRB5_AUTHDATA_WIN2K_PAC 128
31 #endif
32
33 #ifndef KRB5_AUTHDATA_IF_RELEVANT
34 #define KRB5_AUTHDATA_IF_RELEVANT 1
35 #endif
36
37 #ifdef HAVE_KRB5
38
39 #define GSSAPI_CHECKSUM 0x8003 /* Checksum type value for Kerberos */
40 #define GSSAPI_BNDLENGTH 16 /* Bind Length (rfc-1964 pg.3) */
41 #define GSSAPI_CHECKSUM_SIZE (4+GSSAPI_BNDLENGTH+4) /* Length of bind length,
42 bind field, flags field. */
43
44 /* MIT krb5 1.7beta3 (in Ubuntu Karmic) is missing the prototype,
45 but still has the symbol */
46 #if !HAVE_DECL_KRB5_AUTH_CON_SET_REQ_CKSUMTYPE
47 krb5_error_code krb5_auth_con_set_req_cksumtype(
48 krb5_context context,
49 krb5_auth_context auth_context,
50 krb5_cksumtype cksumtype);
51 #endif
52
53 #ifndef HAVE_KRB5_SET_REAL_TIME
54 /*
55 * This function is not in the Heimdal mainline.
56 */
57 krb5_error_code krb5_set_real_time(krb5_context context, int32_t seconds, int32_t microseconds)
58 {
59 krb5_error_code ret;
60 int32_t sec, usec;
61
62 ret = krb5_us_timeofday(context, &sec, &usec);
63 if (ret)
64 return ret;
65
66 context->kdc_sec_offset = seconds - sec;
67 context->kdc_usec_offset = microseconds - usec;
68
69 return 0;
70 }
71 #endif
72
73 #if !defined(HAVE_KRB5_SET_DEFAULT_TGS_KTYPES)
74
75 #if defined(HAVE_KRB5_SET_DEFAULT_TGS_ENCTYPES)
76
77 /* With MIT kerberos, we should use krb5_set_default_tgs_enctypes in preference
78 * to krb5_set_default_tgs_ktypes. See
79 * http://lists.samba.org/archive/samba-technical/2006-July/048271.html
80 *
81 * If the MIT libraries are not exporting internal symbols, we will end up in
82 * this branch, which is correct. Otherwise we will continue to use the
83 * internal symbol
84 */
85 krb5_error_code krb5_set_default_tgs_ktypes(krb5_context ctx, const krb5_enctype *enc)
86 {
87 return krb5_set_default_tgs_enctypes(ctx, enc);
88 }
89
90 #elif defined(HAVE_KRB5_SET_DEFAULT_IN_TKT_ETYPES)
91
92 /* Heimdal */
93 krb5_error_code krb5_set_default_tgs_ktypes(krb5_context ctx, const krb5_enctype *enc)
94 {
95 return krb5_set_default_in_tkt_etypes(ctx, enc);
96 }
97
98 #endif /* HAVE_KRB5_SET_DEFAULT_TGS_ENCTYPES */
99
100 #endif /* HAVE_KRB5_SET_DEFAULT_TGS_KTYPES */
101
102 #if defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS)
103 /* HEIMDAL */
104 bool setup_kaddr( krb5_address *pkaddr, struct sockaddr_storage *paddr)
105 {
106 memset(pkaddr, '\0', sizeof(krb5_address));
107 #if defined(HAVE_IPV6) && defined(KRB5_ADDRESS_INET6)
108 if (paddr->ss_family == AF_INET6) {
109 pkaddr->addr_type = KRB5_ADDRESS_INET6;
110 pkaddr->address.length = sizeof(((struct sockaddr_in6 *)paddr)->sin6_addr);
111 pkaddr->address.data = (char *)&(((struct sockaddr_in6 *)paddr)->sin6_addr);
112 return true;
113 }
114 #endif
115 if (paddr->ss_family == AF_INET) {
116 pkaddr->addr_type = KRB5_ADDRESS_INET;
117 pkaddr->address.length = sizeof(((struct sockaddr_in *)paddr)->sin_addr);
118 pkaddr->address.data = (char *)&(((struct sockaddr_in *)paddr)->sin_addr);
119 return true;
120 }
121 return false;
122 }
123 #elif defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS)
124 /* MIT */
125 bool setup_kaddr( krb5_address *pkaddr, struct sockaddr_storage *paddr)
126 {
127 memset(pkaddr, '\0', sizeof(krb5_address));
128 #if defined(HAVE_IPV6) && defined(ADDRTYPE_INET6)
129 if (paddr->ss_family == AF_INET6) {
130 pkaddr->addrtype = ADDRTYPE_INET6;
131 pkaddr->length = sizeof(((struct sockaddr_in6 *)paddr)->sin6_addr);
132 pkaddr->contents = (krb5_octet *)&(((struct sockaddr_in6 *)paddr)->sin6_addr);
133 return true;
134 }
135 #endif
136 if (paddr->ss_family == AF_INET) {
137 pkaddr->addrtype = ADDRTYPE_INET;
138 pkaddr->length = sizeof(((struct sockaddr_in *)paddr)->sin_addr);
139 pkaddr->contents = (krb5_octet *)&(((struct sockaddr_in *)paddr)->sin_addr);
140 return true;
141 }
142 return false;
143 }
144 #else
145 #error UNKNOWN_ADDRTYPE
146 #endif
147
148 int create_kerberos_key_from_string(krb5_context context,
149 krb5_principal host_princ,
150 krb5_data *password,
151 krb5_keyblock *key,
152 krb5_enctype enctype,
153 bool no_salt)
154 {
155 krb5_principal salt_princ = NULL;
156 int ret;
157 /*
158 * Check if we've determined that the KDC is salting keys for this
159 * principal/enctype in a non-obvious way. If it is, try to match
160 * its behavior.
161 */
162 if (no_salt) {
163 KRB5_KEY_DATA(key) = (KRB5_KEY_DATA_CAST *)SMB_MALLOC(password->length);
164 if (!KRB5_KEY_DATA(key)) {
165 return ENOMEM;
166 }
167 memcpy(KRB5_KEY_DATA(key), password->data, password->length);
168 KRB5_KEY_LENGTH(key) = password->length;
169 KRB5_KEY_TYPE(key) = enctype;
170 return 0;
171 }
172 salt_princ = kerberos_fetch_salt_princ_for_host_princ(context, host_princ, enctype);
173 ret = create_kerberos_key_from_string_direct(context, salt_princ ? salt_princ : host_princ, password, key, enctype);
174 if (salt_princ) {
175 krb5_free_principal(context, salt_princ);
176 }
177 return ret;
178 }
179
180 #if defined(HAVE_KRB5_GET_PERMITTED_ENCTYPES)
181 krb5_error_code get_kerberos_allowed_etypes(krb5_context context,
182 krb5_enctype **enctypes)
183 {
184 return krb5_get_permitted_enctypes(context, enctypes);
185 }
186 #elif defined(HAVE_KRB5_GET_DEFAULT_IN_TKT_ETYPES)
187 krb5_error_code get_kerberos_allowed_etypes(krb5_context context,
188 krb5_enctype **enctypes)
189 {
190 return krb5_get_default_in_tkt_etypes(context, enctypes);
191 }
192 #else
193 #error UNKNOWN_GET_ENCTYPES_FUNCTIONS
194 #endif
195
196 #if defined(HAVE_KRB5_AUTH_CON_SETKEY) && !defined(HAVE_KRB5_AUTH_CON_SETUSERUSERKEY)
197 krb5_error_code krb5_auth_con_setuseruserkey(krb5_context context,
198 krb5_auth_context auth_context,
199 krb5_keyblock *keyblock)
200 {
201 return krb5_auth_con_setkey(context, auth_context, keyblock);
202 }
203 #endif
204
205 bool unwrap_edata_ntstatus(TALLOC_CTX *mem_ctx,
206 DATA_BLOB *edata,
207 DATA_BLOB *edata_out)
208 {
209 DATA_BLOB edata_contents;
210 ASN1_DATA *data;
211 int edata_type;
212
213 if (!edata->length) {
214 return False;
215 }
216
217 data = asn1_init(mem_ctx);
218 if (data == NULL) {
219 return false;
220 }
221
222 asn1_load(data, *edata);
223 asn1_start_tag(data, ASN1_SEQUENCE(0));
224 asn1_start_tag(data, ASN1_CONTEXT(1));
225 asn1_read_Integer(data, &edata_type);
226
227 if (edata_type != KRB5_PADATA_PW_SALT) {
228 DEBUG(0,("edata is not of required type %d but of type %d\n",
229 KRB5_PADATA_PW_SALT, edata_type));
230 asn1_free(data);
231 return False;
232 }
233
234 asn1_start_tag(data, ASN1_CONTEXT(2));
235 asn1_read_OctetString(data, talloc_tos(), &edata_contents);
236 asn1_end_tag(data);
237 asn1_end_tag(data);
238 asn1_end_tag(data);
239 asn1_free(data);
240
241 *edata_out = data_blob_talloc(mem_ctx, edata_contents.data, edata_contents.length);
242
243 data_blob_free(&edata_contents);
244
245 return True;
246 }
247
248
249 bool unwrap_pac(TALLOC_CTX *mem_ctx, DATA_BLOB *auth_data, DATA_BLOB *unwrapped_pac_data)
250 {
251 DATA_BLOB pac_contents;
252 ASN1_DATA *data;
253 int data_type;
254
255 if (!auth_data->length) {
256 return False;
257 }
258
259 data = asn1_init(mem_ctx);
260 if (data == NULL) {
261 return false;
262 }
263
264 asn1_load(data, *auth_data);
265 asn1_start_tag(data, ASN1_SEQUENCE(0));
266 asn1_start_tag(data, ASN1_SEQUENCE(0));
267 asn1_start_tag(data, ASN1_CONTEXT(0));
268 asn1_read_Integer(data, &data_type);
269
270 if (data_type != KRB5_AUTHDATA_WIN2K_PAC ) {
271 DEBUG(10,("authorization data is not a Windows PAC (type: %d)\n", data_type));
272 asn1_free(data);
273 return False;
274 }
275
276 asn1_end_tag(data);
277 asn1_start_tag(data, ASN1_CONTEXT(1));
278 asn1_read_OctetString(data, talloc_tos(), &pac_contents);
279 asn1_end_tag(data);
280 asn1_end_tag(data);
281 asn1_end_tag(data);
282 asn1_free(data);
283
284 *unwrapped_pac_data = data_blob_talloc(mem_ctx, pac_contents.data, pac_contents.length);
285
286 data_blob_free(&pac_contents);
287
288 return True;
289 }
290
291 bool get_auth_data_from_tkt(TALLOC_CTX *mem_ctx, DATA_BLOB *auth_data, krb5_ticket *tkt)
292 {
293 DATA_BLOB auth_data_wrapped;
294 bool got_auth_data_pac = False;
295 int i;
296
297 #if defined(HAVE_KRB5_TKT_ENC_PART2)
298 if (tkt->enc_part2 && tkt->enc_part2->authorization_data &&
299 tkt->enc_part2->authorization_data[0] &&
300 tkt->enc_part2->authorization_data[0]->length)
301 {
302 for (i = 0; tkt->enc_part2->authorization_data[i] != NULL; i++) {
303
304 if (tkt->enc_part2->authorization_data[i]->ad_type !=
305 KRB5_AUTHDATA_IF_RELEVANT) {
306 DEBUG(10,("get_auth_data_from_tkt: ad_type is %d\n",
307 tkt->enc_part2->authorization_data[i]->ad_type));
308 continue;
309 }
310
311 auth_data_wrapped = data_blob(tkt->enc_part2->authorization_data[i]->contents,
312 tkt->enc_part2->authorization_data[i]->length);
313
314 /* check if it is a PAC */
315 got_auth_data_pac = unwrap_pac(mem_ctx, &auth_data_wrapped, auth_data);
316 data_blob_free(&auth_data_wrapped);
317
318 if (got_auth_data_pac) {
319 return true;
320 }
321 }
322
323 return got_auth_data_pac;
324 }
325
326 #else
327 if (tkt->ticket.authorization_data &&
328 tkt->ticket.authorization_data->len)
329 {
330 for (i = 0; i < tkt->ticket.authorization_data->len; i++) {
331
332 if (tkt->ticket.authorization_data->val[i].ad_type !=
333 KRB5_AUTHDATA_IF_RELEVANT) {
334 DEBUG(10,("get_auth_data_from_tkt: ad_type is %d\n",
335 tkt->ticket.authorization_data->val[i].ad_type));
336 continue;
337 }
338
339 auth_data_wrapped = data_blob(tkt->ticket.authorization_data->val[i].ad_data.data,
340 tkt->ticket.authorization_data->val[i].ad_data.length);
341
342 /* check if it is a PAC */
343 got_auth_data_pac = unwrap_pac(mem_ctx, &auth_data_wrapped, auth_data);
344 data_blob_free(&auth_data_wrapped);
345
346 if (got_auth_data_pac) {
347 return true;
348 }
349 }
350
351 return got_auth_data_pac;
352 }
353 #endif
354 return False;
355 }
356
357 krb5_const_principal get_principal_from_tkt(krb5_ticket *tkt)
358 {
359 #if defined(HAVE_KRB5_TKT_ENC_PART2)
360 return tkt->enc_part2->client;
361 #else
362 return tkt->client;
363 #endif
364 }
365
366 #if !defined(HAVE_KRB5_LOCATE_KDC)
367
368 /* krb5_locate_kdc is an internal MIT symbol. MIT are not yet willing to commit
369 * to a public interface for this functionality, so we have to be able to live
370 * without it if the MIT libraries are hiding their internal symbols.
371 */
372
373 #if defined(KRB5_KRBHST_INIT)
374 /* Heimdal */
375 krb5_error_code smb_krb5_locate_kdc(krb5_context ctx, const krb5_data *realm, struct sockaddr **addr_pp, int *naddrs, int get_masters)
376 {
377 krb5_krbhst_handle hnd;
378 krb5_krbhst_info *hinfo;
379 krb5_error_code rc;
380 int num_kdcs, i;
381 struct sockaddr *sa;
382 struct addrinfo *ai;
383
384 *addr_pp = NULL;
385 *naddrs = 0;
386
387 rc = krb5_krbhst_init(ctx, realm->data, KRB5_KRBHST_KDC, &hnd);
388 if (rc) {
389 DEBUG(0, ("smb_krb5_locate_kdc: krb5_krbhst_init failed (%s)\n", error_message(rc)));
390 return rc;
391 }
392
393 for ( num_kdcs = 0; (rc = krb5_krbhst_next(ctx, hnd, &hinfo) == 0); num_kdcs++)
394 ;
395
396 krb5_krbhst_reset(ctx, hnd);
397
398 if (!num_kdcs) {
399 DEBUG(0, ("smb_krb5_locate_kdc: zero kdcs found !\n"));
400 krb5_krbhst_free(ctx, hnd);
401 return -1;
402 }
403
404 sa = SMB_MALLOC_ARRAY( struct sockaddr, num_kdcs );
405 if (!sa) {
406 DEBUG(0, ("smb_krb5_locate_kdc: malloc failed\n"));
407 krb5_krbhst_free(ctx, hnd);
408 naddrs = 0;
409 return -1;
410 }
411
412 memset(sa, '\0', sizeof(struct sockaddr) * num_kdcs );
413
414 for (i = 0; i < num_kdcs && (rc = krb5_krbhst_next(ctx, hnd, &hinfo) == 0); i++) {
415
416 #if defined(HAVE_KRB5_KRBHST_GET_ADDRINFO)
417 rc = krb5_krbhst_get_addrinfo(ctx, hinfo, &ai);
418 if (rc) {
419 DEBUG(0,("krb5_krbhst_get_addrinfo failed: %s\n", error_message(rc)));
420 continue;
421 }
422 #endif
423 if (hinfo->ai && hinfo->ai->ai_family == AF_INET)
424 memcpy(&sa[i], hinfo->ai->ai_addr, sizeof(struct sockaddr));
425 }
426
427 krb5_krbhst_free(ctx, hnd);
428
429 *naddrs = num_kdcs;
430 *addr_pp = sa;
431 return 0;
432 }
433
434 #else /* ! defined(KRB5_KRBHST_INIT) */
435
436 krb5_error_code smb_krb5_locate_kdc(krb5_context ctx, const krb5_data *realm,
437 struct sockaddr **addr_pp, int *naddrs, int get_masters)
438 {
439 DEBUG(0, ("unable to explicitly locate the KDC on this platform\n"));
440 return KRB5_KDC_UNREACH;
441 }
442
443 #endif /* KRB5_KRBHST_INIT */
444
445 #else /* ! HAVE_KRB5_LOCATE_KDC */
446
447 krb5_error_code smb_krb5_locate_kdc(krb5_context ctx, const krb5_data *realm,
448 struct sockaddr **addr_pp, int *naddrs, int get_masters)
449 {
450 return krb5_locate_kdc(ctx, realm, addr_pp, naddrs, get_masters);
451 }
452
453 #endif /* HAVE_KRB5_LOCATE_KDC */
454
455 void kerberos_set_creds_enctype(krb5_creds *pcreds, int enctype)
456 {
457 #if defined(HAVE_KRB5_KEYBLOCK_IN_CREDS)
458 KRB5_KEY_TYPE((&pcreds->keyblock)) = enctype;
459 #elif defined(HAVE_KRB5_SESSION_IN_CREDS)
460 KRB5_KEY_TYPE((&pcreds->session)) = enctype;
461 #else
462 #error UNKNOWN_KEYBLOCK_MEMBER_IN_KRB5_CREDS_STRUCT
463 #endif
464 }
465
466 bool kerberos_compatible_enctypes(krb5_context context,
467 krb5_enctype enctype1,
468 krb5_enctype enctype2)
469 {
470 #if defined(HAVE_KRB5_C_ENCTYPE_COMPARE)
471 krb5_boolean similar = 0;
472
473 krb5_c_enctype_compare(context, enctype1, enctype2, &similar);
474 return similar ? True : False;
475 #elif defined(HAVE_KRB5_ENCTYPES_COMPATIBLE_KEYS)
476 return krb5_enctypes_compatible_keys(context, enctype1, enctype2) ? True : False;
477 #endif
478 }
479
480 static bool ads_cleanup_expired_creds(krb5_context context,
481 krb5_ccache ccache,
482 krb5_creds *credsp)
483 {
484 krb5_error_code retval;
485 const char *cc_type = krb5_cc_get_type(context, ccache);
486
487 DEBUG(3, ("ads_cleanup_expired_creds: Ticket in ccache[%s:%s] expiration %s\n",
488 cc_type, krb5_cc_get_name(context, ccache),
489 http_timestring(talloc_tos(), credsp->times.endtime)));
490
491 /* we will probably need new tickets if the current ones
492 will expire within 10 seconds.
493 */
494 if (credsp->times.endtime >= (time(NULL) + 10))
495 return False;
496
497 /* heimdal won't remove creds from a file ccache, and
498 perhaps we shouldn't anyway, since internally we
499 use memory ccaches, and a FILE one probably means that
500 we're using creds obtained outside of our exectuable
501 */
502 if (strequal(cc_type, "FILE")) {
503 DEBUG(5, ("ads_cleanup_expired_creds: We do not remove creds from a %s ccache\n", cc_type));
504 return False;
505 }
506
507 retval = krb5_cc_remove_cred(context, ccache, 0, credsp);
508 if (retval) {
509 DEBUG(1, ("ads_cleanup_expired_creds: krb5_cc_remove_cred failed, err %s\n",
510 error_message(retval)));
511 /* If we have an error in this, we want to display it,
512 but continue as though we deleted it */
513 }
514 return True;
515 }
516
517 /* Allocate and setup the auth context into the state we need. */
518
519 static krb5_error_code setup_auth_context(krb5_context context,
520 krb5_auth_context *auth_context)
521 {
522 krb5_error_code retval;
523
524 retval = krb5_auth_con_init(context, auth_context );
525 if (retval) {
526 DEBUG(1,("krb5_auth_con_init failed (%s)\n",
527 error_message(retval)));
528 return retval;
529 }
530
531 /* Ensure this is an addressless ticket. */
532 retval = krb5_auth_con_setaddrs(context, *auth_context, NULL, NULL);
533 if (retval) {
534 DEBUG(1,("krb5_auth_con_setaddrs failed (%s)\n",
535 error_message(retval)));
536 }
537
538 return retval;
539 }
540
541 #if defined(TKT_FLG_OK_AS_DELEGATE ) && defined(HAVE_KRB5_FWD_TGT_CREDS) && defined(HAVE_KRB5_AUTH_CON_SETUSERUSERKEY) && defined(KRB5_AUTH_CONTEXT_USE_SUBKEY) && defined(HAVE_KRB5_AUTH_CON_SET_REQ_CKSUMTYPE)
542 static krb5_error_code create_gss_checksum(krb5_data *in_data, /* [inout] */
543 uint32_t gss_flags)
544 {
545 unsigned int orig_length = in_data->length;
546 unsigned int base_cksum_size = GSSAPI_CHECKSUM_SIZE;
547 char *gss_cksum = NULL;
548
549 if (orig_length) {
550 /* Extra length field for delgated ticket. */
551 base_cksum_size += 4;
552 }
553
554 if ((unsigned int)base_cksum_size + orig_length <
555 (unsigned int)base_cksum_size) {
556 return EINVAL;
557 }
558
559 gss_cksum = (char *)SMB_MALLOC(base_cksum_size + orig_length);
560 if (gss_cksum == NULL) {
561 return ENOMEM;
562 }
563
564 memset(gss_cksum, '\0', base_cksum_size + orig_length);
565 SIVAL(gss_cksum, 0, GSSAPI_BNDLENGTH);
566
567 /*
568 * GSS_C_NO_CHANNEL_BINDINGS means 16 zero bytes.
569 * This matches the behavior of heimdal and mit.
570 *
571 * And it is needed to work against some closed source
572 * SMB servers.
573 *
574 * See bug #7883
575 */
576 memset(&gss_cksum[4], 0x00, GSSAPI_BNDLENGTH);
577
578 SIVAL(gss_cksum, 20, gss_flags);
579
580 if (orig_length) {
581 SSVAL(gss_cksum, 24, 1); /* The Delegation Option identifier */
582 SSVAL(gss_cksum, 26, orig_length);
583 /* Copy the kerberos KRB_CRED data */
584 memcpy(gss_cksum + 28, in_data->data, orig_length);
585 free(in_data->data);
586 in_data->data = NULL;
587 in_data->length = 0;
588 }
589 in_data->data = gss_cksum;
590 in_data->length = base_cksum_size + orig_length;
591 return 0;
592 }
593 #endif
594
595 /*
596 we can't use krb5_mk_req because w2k wants the service to be in a particular format
597 */
598 static krb5_error_code ads_krb5_mk_req(krb5_context context,
599 krb5_auth_context *auth_context,
600 const krb5_flags ap_req_options,
601 const char *principal,
602 krb5_ccache ccache,
603 krb5_data *outbuf,
604 time_t *expire_time,
605 const char *impersonate_princ_s)
606 {
607 krb5_error_code retval;
608 krb5_principal server;
609 krb5_principal impersonate_princ = NULL;
610 krb5_creds * credsp;
611 krb5_creds creds;
612 krb5_data in_data;
613 bool creds_ready = False;
614 int i = 0, maxtries = 3;
615
616 ZERO_STRUCT(in_data);
617
618 retval = smb_krb5_parse_name(context, principal, &server);
619 if (retval) {
620 DEBUG(1,("ads_krb5_mk_req: Failed to parse principal %s\n", principal));
621 return retval;
622 }
623
624 if (impersonate_princ_s) {
625 retval = smb_krb5_parse_name(context, impersonate_princ_s,
626 &impersonate_princ);
627 if (retval) {
628 DEBUG(1,("ads_krb5_mk_req: Failed to parse principal %s\n", impersonate_princ_s));
629 goto cleanup_princ;
630 }
631 }
632
633 /* obtain ticket & session key */
634 ZERO_STRUCT(creds);
635 if ((retval = krb5_copy_principal(context, server, &creds.server))) {
636 DEBUG(1,("ads_krb5_mk_req: krb5_copy_principal failed (%s)\n",
637 error_message(retval)));
638 goto cleanup_princ;
639 }
640
641 if ((retval = krb5_cc_get_principal(context, ccache, &creds.client))) {
642 /* This can commonly fail on smbd startup with no ticket in the cache.
643 * Report at higher level than 1. */
644 DEBUG(3,("ads_krb5_mk_req: krb5_cc_get_principal failed (%s)\n",
645 error_message(retval)));
646 goto cleanup_creds;
647 }
648
649 while (!creds_ready && (i < maxtries)) {
650
651 if ((retval = smb_krb5_get_credentials(context, ccache,
652 creds.client,
653 creds.server,
654 impersonate_princ,
655 &credsp))) {
656 DEBUG(1,("ads_krb5_mk_req: smb_krb5_get_credentials failed for %s (%s)\n",
657 principal, error_message(retval)));
658 goto cleanup_creds;
659 }
660
661 /* cope with ticket being in the future due to clock skew */
662 if ((unsigned)credsp->times.starttime > time(NULL)) {
663 time_t t = time(NULL);
664 int time_offset =(int)((unsigned)credsp->times.starttime-t);
665 DEBUG(4,("ads_krb5_mk_req: Advancing clock by %d seconds to cope with clock skew\n", time_offset));
666 krb5_set_real_time(context, t + time_offset + 1, 0);
667 }
668
669 if (!ads_cleanup_expired_creds(context, ccache, credsp)) {
670 creds_ready = True;
671 }
672
673 i++;
674 }
675
676 DEBUG(10,("ads_krb5_mk_req: Ticket (%s) in ccache (%s:%s) is valid until: (%s - %u)\n",
677 principal, krb5_cc_get_type(context, ccache), krb5_cc_get_name(context, ccache),
678 http_timestring(talloc_tos(), (unsigned)credsp->times.endtime),
679 (unsigned)credsp->times.endtime));
680
681 if (expire_time) {
682 *expire_time = (time_t)credsp->times.endtime;
683 }
684
685 /* Allocate the auth_context. */
686 retval = setup_auth_context(context, auth_context);
687 if (retval) {
688 DEBUG(1,("setup_auth_context failed (%s)\n",
689 error_message(retval)));
690 goto cleanup_creds;
691 }
692
693 #if defined(TKT_FLG_OK_AS_DELEGATE ) && defined(HAVE_KRB5_FWD_TGT_CREDS) && defined(HAVE_KRB5_AUTH_CON_SETUSERUSERKEY) && defined(KRB5_AUTH_CONTEXT_USE_SUBKEY) && defined(HAVE_KRB5_AUTH_CON_SET_REQ_CKSUMTYPE)
694 {
695 uint32_t gss_flags = 0;
696
697 if( credsp->ticket_flags & TKT_FLG_OK_AS_DELEGATE ) {
698 /* Fetch a forwarded TGT from the KDC so that we can hand off a 2nd ticket
699 as part of the kerberos exchange. */
700
701 DEBUG( 3, ("ads_krb5_mk_req: server marked as OK to delegate to, building forwardable TGT\n") );
702
703 retval = krb5_auth_con_setuseruserkey(context,
704 *auth_context,
705 &credsp->keyblock );
706 if (retval) {
707 DEBUG(1,("krb5_auth_con_setuseruserkey failed (%s)\n",
708 error_message(retval)));
709 goto cleanup_creds;
710 }
711
712 /* Must use a subkey for forwarded tickets. */
713 retval = krb5_auth_con_setflags(context,
714 *auth_context,
715 KRB5_AUTH_CONTEXT_USE_SUBKEY);
716 if (retval) {
717 DEBUG(1,("krb5_auth_con_setflags failed (%s)\n",
718 error_message(retval)));
719 goto cleanup_creds;
720 }
721
722 retval = krb5_fwd_tgt_creds(context,/* Krb5 context [in] */
723 *auth_context, /* Authentication context [in] */
724 discard_const_p(char, KRB5_TGS_NAME), /* Ticket service name ("krbtgt") [in] */
725 credsp->client, /* Client principal for the tgt [in] */
726 credsp->server, /* Server principal for the tgt [in] */
727 ccache, /* Credential cache to use for storage [in] */
728 1, /* Turn on for "Forwardable ticket" [in] */
729 &in_data ); /* Resulting response [out] */
730
731 if (retval) {
732 DEBUG( 3, ("krb5_fwd_tgt_creds failed (%s)\n",
733 error_message( retval ) ) );
734
735 /*
736 * This is not fatal. Delete the *auth_context and continue
737 * with krb5_mk_req_extended to get a non-forwardable ticket.
738 */
739
740 if (in_data.data) {
741 free( in_data.data );
742 in_data.data = NULL;
743 in_data.length = 0;
744 }
745 krb5_auth_con_free(context, *auth_context);
746 *auth_context = NULL;
747 retval = setup_auth_context(context, auth_context);
748 if (retval) {
749 DEBUG(1,("setup_auth_context failed (%s)\n",
750 error_message(retval)));
751 goto cleanup_creds;
752 }
753 } else {
754 /* We got a delegated ticket. */
755 gss_flags |= GSS_C_DELEG_FLAG;
756 }
757 }
758
759 /* Frees and reallocates in_data into a GSS checksum blob. */
760 retval = create_gss_checksum(&in_data, gss_flags);
761 if (retval) {
762 goto cleanup_data;
763 }
764
765 /* We always want GSS-checksum types. */
766 retval = krb5_auth_con_set_req_cksumtype(context, *auth_context, GSSAPI_CHECKSUM );
767 if (retval) {
768 DEBUG(1,("krb5_auth_con_set_req_cksumtype failed (%s)\n",
769 error_message(retval)));
770 goto cleanup_data;
771 }
772 }
773 #endif
774
775 retval = krb5_mk_req_extended(context, auth_context, ap_req_options,
776 &in_data, credsp, outbuf);
777 if (retval) {
778 DEBUG(1,("ads_krb5_mk_req: krb5_mk_req_extended failed (%s)\n",
779 error_message(retval)));
780 }
781
782 #if defined(TKT_FLG_OK_AS_DELEGATE ) && defined(HAVE_KRB5_FWD_TGT_CREDS) && defined(HAVE_KRB5_AUTH_CON_SETUSERUSERKEY) && defined(KRB5_AUTH_CONTEXT_USE_SUBKEY) && defined(HAVE_KRB5_AUTH_CON_SET_REQ_CKSUMTYPE)
783 cleanup_data:
784 #endif
785
786 if (in_data.data) {
787 free( in_data.data );
788 in_data.length = 0;
789 }
790
791 krb5_free_creds(context, credsp);
792
793 cleanup_creds:
794 krb5_free_cred_contents(context, &creds);
795
796 cleanup_princ:
797 krb5_free_principal(context, server);
798 if (impersonate_princ) {
799 krb5_free_principal(context, impersonate_princ);
800 }
801
802 return retval;
803 }
804
805 /*
806 get a kerberos5 ticket for the given service
807 */
808 int cli_krb5_get_ticket(TALLOC_CTX *mem_ctx,
809 const char *principal, time_t time_offset,
810 DATA_BLOB *ticket, DATA_BLOB *session_key_krb5,
811 uint32_t extra_ap_opts, const char *ccname,
812 time_t *tgs_expire,
813 const char *impersonate_princ_s)
814
815 {
816 krb5_error_code retval;
817 krb5_data packet;
818 krb5_context context = NULL;
819 krb5_ccache ccdef = NULL;
820 krb5_auth_context auth_context = NULL;
821 krb5_enctype enc_types[] = {
822 ENCTYPE_ARCFOUR_HMAC,
823 ENCTYPE_DES_CBC_MD5,
824 ENCTYPE_DES_CBC_CRC,
825 ENCTYPE_NULL};
826
827 initialize_krb5_error_table();
828 retval = krb5_init_context(&context);
829 if (retval) {
830 DEBUG(1, ("krb5_init_context failed (%s)\n",
831 error_message(retval)));
832 goto failed;
833 }
834
835 if (time_offset != 0) {
836 krb5_set_real_time(context, time(NULL) + time_offset, 0);
837 }
838
839 if ((retval = krb5_cc_resolve(context, ccname ?
840 ccname : krb5_cc_default_name(context), &ccdef))) {
841 DEBUG(1, ("krb5_cc_default failed (%s)\n",
842 error_message(retval)));
843 goto failed;
844 }
845
846 if ((retval = krb5_set_default_tgs_ktypes(context, enc_types))) {
847 DEBUG(1, ("krb5_set_default_tgs_ktypes failed (%s)\n",
848 error_message(retval)));
849 goto failed;
850 }
851
852 retval = ads_krb5_mk_req(context, &auth_context,
853 AP_OPTS_USE_SUBKEY | (krb5_flags)extra_ap_opts,
854 principal, ccdef, &packet,
855 tgs_expire, impersonate_princ_s);
856 if (retval) {
857 goto failed;
858 }
859
860 get_krb5_smb_session_key(mem_ctx, context, auth_context,
861 session_key_krb5, false);
862
863 *ticket = data_blob_talloc(mem_ctx, packet.data, packet.length);
864
865 kerberos_free_data_contents(context, &packet);
866
867 failed:
868
869 if (context) {
870 if (ccdef)
871 krb5_cc_close(context, ccdef);
872 if (auth_context)
873 krb5_auth_con_free(context, auth_context);
874 krb5_free_context(context);
875 }
876
877 return retval;
878 }
879
880 bool get_krb5_smb_session_key(TALLOC_CTX *mem_ctx,
881 krb5_context context,
882 krb5_auth_context auth_context,
883 DATA_BLOB *session_key, bool remote)
884 {
885 krb5_keyblock *skey = NULL;
886 krb5_error_code err = 0;
887 bool ret = false;
888
889 if (remote) {
890 err = krb5_auth_con_getremotesubkey(context,
891 auth_context, &skey);
892 } else {
893 err = krb5_auth_con_getlocalsubkey(context,
894 auth_context, &skey);
895 }
896
897 if (err || skey == NULL) {
898 DEBUG(10, ("KRB5 error getting session key %d\n", err));
899 goto done;
900 }
901
902 DEBUG(10, ("Got KRB5 session key of length %d\n",
903 (int)KRB5_KEY_LENGTH(skey)));
904
905 *session_key = data_blob_talloc(mem_ctx,
906 KRB5_KEY_DATA(skey),
907 KRB5_KEY_LENGTH(skey));
908 dump_data_pw("KRB5 Session Key:\n",
909 session_key->data,
910 session_key->length);
911
912 ret = true;
913
914 done:
915 if (skey) {
916 krb5_free_keyblock(context, skey);
917 }
918
919 return ret;
920 }
921
922
923 #if defined(HAVE_KRB5_PRINCIPAL_GET_COMP_STRING) && !defined(HAVE_KRB5_PRINC_COMPONENT)
924 const krb5_data *krb5_princ_component(krb5_context context, krb5_principal principal, int i );
925
926 const krb5_data *krb5_princ_component(krb5_context context, krb5_principal principal, int i )
927 {
928 static krb5_data kdata;
929
930 kdata.data = discard_const_p(char, krb5_principal_get_comp_string(context, principal, i));
931 kdata.length = strlen((const char *)kdata.data);
932 return &kdata;
933 }
934 #endif
935
936 time_t get_authtime_from_tkt(krb5_ticket *tkt)
937 {
938 #if defined(HAVE_KRB5_TKT_ENC_PART2)
939 return tkt->enc_part2->times.authtime;
940 #else
941 return tkt->ticket.authtime;
942 #endif
943 }
944
945 #ifdef HAVE_KRB5_DECODE_AP_REQ /* Heimdal */
946 static int get_kvno_from_ap_req(krb5_ap_req *ap_req)
947 {
948 #ifdef HAVE_TICKET_POINTER_IN_KRB5_AP_REQ /* MIT */
949 if (ap_req->ticket->enc_part.kvno)
950 return ap_req->ticket->enc_part.kvno;
951 #else /* Heimdal */
952 if (ap_req->ticket.enc_part.kvno)
953 return *ap_req->ticket.enc_part.kvno;
954 #endif
955 return 0;
956 }
957
958 static krb5_enctype get_enctype_from_ap_req(krb5_ap_req *ap_req)
959 {
960 #ifdef HAVE_ETYPE_IN_ENCRYPTEDDATA /* Heimdal */
961 return ap_req->ticket.enc_part.etype;
962 #else /* MIT */
963 return ap_req->ticket->enc_part.enctype;
964 #endif
965 }
966 #endif /* HAVE_KRB5_DECODE_AP_REQ */
967
968 static krb5_error_code
969 get_key_from_keytab(krb5_context context,
970 krb5_const_principal server,
971 krb5_enctype enctype,
972 krb5_kvno kvno,
973 krb5_keyblock **out_key)
974 {
975 krb5_keytab_entry entry;
976 krb5_error_code ret;
977 krb5_keytab keytab;
978 char *name = NULL;
979 krb5_keyblock *keyp;
980
981 /* We have to open a new keytab handle here, as MIT does
982 an implicit open/getnext/close on krb5_kt_get_entry. We
983 may be in the middle of a keytab enumeration when this is
984 called. JRA. */
985
986 ret = smb_krb5_open_keytab(context, NULL, False, &keytab);
987 if (ret) {
988 DEBUG(1,("get_key_from_keytab: smb_krb5_open_keytab failed (%s)\n", error_message(ret)));
989 return ret;
990 }
991
992 if ( DEBUGLEVEL >= 10 ) {
993 if (smb_krb5_unparse_name(talloc_tos(), context, server, &name) == 0) {
994 DEBUG(10,("get_key_from_keytab: will look for kvno %d, enctype %d and name: %s\n",
995 kvno, enctype, name));
996 TALLOC_FREE(name);
997 }
998 }
999
1000 ret = krb5_kt_get_entry(context,
1001 keytab,
1002 server,
1003 kvno,
1004 enctype,
1005 &entry);
1006
1007 if (ret) {
1008 DEBUG(0,("get_key_from_keytab: failed to retrieve key: %s\n", error_message(ret)));
1009 goto out;
1010 }
1011
1012 keyp = KRB5_KT_KEY(&entry);
1013
1014 ret = krb5_copy_keyblock(context, keyp, out_key);
1015 if (ret) {
1016 DEBUG(0,("get_key_from_keytab: failed to copy key: %s\n", error_message(ret)));
1017 goto out;
1018 }
1019
1020 smb_krb5_kt_free_entry(context, &entry);
1021
1022 out:
1023 krb5_kt_close(context, keytab);
1024 return ret;
1025 }
1026
1027 /* Prototypes */
1028
1029 krb5_error_code smb_krb5_get_keyinfo_from_ap_req(krb5_context context,
1030 const krb5_data *inbuf,
1031 krb5_kvno *kvno,
1032 krb5_enctype *enctype)
1033 {
1034 #ifdef HAVE_KRB5_DECODE_AP_REQ /* Heimdal */
1035 {
1036 krb5_error_code ret;
1037 krb5_ap_req ap_req;
1038
1039 ret = krb5_decode_ap_req(context, inbuf, &ap_req);
1040 if (ret)
1041 return ret;
1042
1043 *kvno = get_kvno_from_ap_req(&ap_req);
1044 *enctype = get_enctype_from_ap_req(&ap_req);
1045
1046 free_AP_REQ(&ap_req);
1047 return 0;
1048 }
1049 #endif
1050
1051 /* Possibly not an appropriate error code. */
1052 return KRB5KDC_ERR_BADOPTION;
1053 }
1054
1055 krb5_error_code krb5_rd_req_return_keyblock_from_keytab(krb5_context context,
1056 krb5_auth_context *auth_context,
1057 const krb5_data *inbuf,
1058 krb5_const_principal server,
1059 krb5_keytab keytab,
1060 krb5_flags *ap_req_options,
1061 krb5_ticket **ticket,
1062 krb5_keyblock **keyblock)
1063 {
1064 krb5_error_code ret;
1065 krb5_kvno kvno;
1066 krb5_enctype enctype;
1067 krb5_keyblock *local_keyblock;
1068
1069 ret = krb5_rd_req(context,
1070 auth_context,
1071 inbuf,
1072 server,
1073 keytab,
1074 ap_req_options,
1075 ticket);
1076 if (ret) {
1077 return ret;
1078 }
1079
1080 #ifdef KRB5_TICKET_HAS_KEYINFO
1081 enctype = (*ticket)->enc_part.enctype;
1082 kvno = (*ticket)->enc_part.kvno;
1083 #else
1084 ret = smb_krb5_get_keyinfo_from_ap_req(context, inbuf, &kvno, &enctype);
1085 if (ret) {
1086 return ret;
1087 }
1088 #endif
1089
1090 ret = get_key_from_keytab(context,
1091 server,
1092 enctype,
1093 kvno,
1094 &local_keyblock);
1095 if (ret) {
1096 DEBUG(0,("krb5_rd_req_return_keyblock_from_keytab: failed to call get_key_from_keytab\n"));
1097 goto out;
1098 }
1099
1100 out:
1101 if (ret && local_keyblock != NULL) {
1102 krb5_free_keyblock(context, local_keyblock);
1103 } else {
1104 *keyblock = local_keyblock;
1105 }
1106
1107 return ret;
1108 }
1109
1110 krb5_error_code smb_krb5_renew_ticket(const char *ccache_string, /* FILE:/tmp/krb5cc_0 */
1111 const char *client_string, /* gd@BER.SUSE.DE */
1112 const char *service_string, /* krbtgt/BER.SUSE.DE@BER.SUSE.DE */
1113 time_t *expire_time)
1114 {
1115 krb5_error_code ret;
1116 krb5_context context = NULL;
1117 krb5_ccache ccache = NULL;
1118 krb5_principal client = NULL;
1119 krb5_creds creds, creds_in, *creds_out = NULL;
1120
1121 ZERO_STRUCT(creds);
1122 ZERO_STRUCT(creds_in);
1123
1124 initialize_krb5_error_table();
1125 ret = krb5_init_context(&context);
1126 if (ret) {
1127 goto done;
1128 }
1129
1130 if (!ccache_string) {
1131 ccache_string = krb5_cc_default_name(context);
1132 }
1133
1134 if (!ccache_string) {
1135 ret = EINVAL;
1136 goto done;
1137 }
1138
1139 DEBUG(10,("smb_krb5_renew_ticket: using %s as ccache\n", ccache_string));
1140
1141 /* FIXME: we should not fall back to defaults */
1142 ret = krb5_cc_resolve(context, discard_const_p(char, ccache_string), &ccache);
1143 if (ret) {
1144 goto done;
1145 }
1146
1147 if (client_string) {
1148 ret = smb_krb5_parse_name(context, client_string, &client);
1149 if (ret) {
1150 goto done;
1151 }
1152 } else {
1153 ret = krb5_cc_get_principal(context, ccache, &client);
1154 if (ret) {
1155 goto done;
1156 }
1157 }
1158
1159 #ifdef HAVE_KRB5_GET_RENEWED_CREDS /* MIT */
1160 {
1161 ret = krb5_get_renewed_creds(context, &creds, client, ccache, discard_const_p(char, service_string));
1162 if (ret) {
1163 DEBUG(10,("smb_krb5_renew_ticket: krb5_get_kdc_cred failed: %s\n", error_message(ret)));
1164 goto done;
1165 }
1166 }
1167 #elif defined(HAVE_KRB5_GET_KDC_CRED) /* Heimdal */
1168 {
1169 krb5_kdc_flags flags;
1170 krb5_realm *client_realm = NULL;
1171
1172 ret = krb5_copy_principal(context, client, &creds_in.client);
1173 if (ret) {
1174 goto done;
1175 }
1176
1177 if (service_string) {
1178 ret = smb_krb5_parse_name(context, service_string, &creds_in.server);
1179 if (ret) {
1180 goto done;
1181 }
1182 } else {
1183 /* build tgt service by default */
1184 client_realm = krb5_princ_realm(context, creds_in.client);
1185 if (!client_realm) {
1186 ret = ENOMEM;
1187 goto done;
1188 }
1189 ret = krb5_make_principal(context, &creds_in.server, *client_realm, KRB5_TGS_NAME, *client_realm, NULL);
1190 if (ret) {
1191 goto done;
1192 }
1193 }
1194
1195 flags.i = 0;
1196 flags.b.renewable = flags.b.renew = True;
1197
1198 ret = krb5_get_kdc_cred(context, ccache, flags, NULL, NULL, &creds_in, &creds_out);
1199 if (ret) {
1200 DEBUG(10,("smb_krb5_renew_ticket: krb5_get_kdc_cred failed: %s\n", error_message(ret)));
1201 goto done;
1202 }
1203
1204 creds = *creds_out;
1205 }
1206 #else
1207 #error NO_SUITABLE_KRB5_TICKET_RENEW_FUNCTION_AVAILABLE
1208 #endif
1209
1210 /* hm, doesn't that create a new one if the old one wasn't there? - Guenther */
1211 ret = krb5_cc_initialize(context, ccache, client);
1212 if (ret) {
1213 goto done;
1214 }
1215
1216 ret = krb5_cc_store_cred(context, ccache, &creds);
1217
1218 if (expire_time) {
1219 *expire_time = (time_t) creds.times.endtime;
1220 }
1221
1222 done:
1223 krb5_free_cred_contents(context, &creds_in);
1224
1225 if (creds_out) {
1226 krb5_free_creds(context, creds_out);
1227 } else {
1228 krb5_free_cred_contents(context, &creds);
1229 }
1230
1231 if (client) {
1232 krb5_free_principal(context, client);
1233 }
1234 if (ccache) {
1235 krb5_cc_close(context, ccache);
1236 }
1237 if (context) {
1238 krb5_free_context(context);
1239 }
1240
1241 return ret;
1242 }
1243
1244 krb5_error_code smb_krb5_free_addresses(krb5_context context, smb_krb5_addresses *addr)
1245 {
1246 krb5_error_code ret = 0;
1247 if (addr == NULL) {
1248 return ret;
1249 }
1250 #if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
1251 krb5_free_addresses(context, addr->addrs);
1252 #elif defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS) /* Heimdal */
1253 ret = krb5_free_addresses(context, addr->addrs);
1254 SAFE_FREE(addr->addrs);
1255 #endif
1256 SAFE_FREE(addr);
1257 addr = NULL;
1258 return ret;
1259 }
1260
1261 krb5_error_code smb_krb5_gen_netbios_krb5_address(smb_krb5_addresses **kerb_addr)
1262 {
1263 krb5_error_code ret = 0;
1264 nstring buf;
1265 #if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
1266 krb5_address **addrs = NULL;
1267 #elif defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS) /* Heimdal */
1268 krb5_addresses *addrs = NULL;
1269 #endif
1270
1271 *kerb_addr = (smb_krb5_addresses *)SMB_MALLOC(sizeof(smb_krb5_addresses));
1272 if (*kerb_addr == NULL) {
1273 return ENOMEM;
1274 }
1275
1276 put_name(buf, lp_netbios_name(), ' ', 0x20);
1277
1278 #if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
1279 {
1280 int num_addr = 2;
1281
1282 addrs = (krb5_address **)SMB_MALLOC(sizeof(krb5_address *) * num_addr);
1283 if (addrs == NULL) {
1284 SAFE_FREE(*kerb_addr);
1285 return ENOMEM;
1286 }
1287
1288 memset(addrs, 0, sizeof(krb5_address *) * num_addr);
1289
1290 addrs[0] = (krb5_address *)SMB_MALLOC(sizeof(krb5_address));
1291 if (addrs[0] == NULL) {
1292 SAFE_FREE(addrs);
1293 SAFE_FREE(*kerb_addr);
1294 return ENOMEM;
1295 }
1296
1297 addrs[0]->magic = KV5M_ADDRESS;
1298 addrs[0]->addrtype = KRB5_ADDR_NETBIOS;
1299 addrs[0]->length = MAX_NETBIOSNAME_LEN;
1300 addrs[0]->contents = (unsigned char *)SMB_MALLOC(addrs[0]->length);
1301 if (addrs[0]->contents == NULL) {
1302 SAFE_FREE(addrs[0]);
1303 SAFE_FREE(addrs);
1304 SAFE_FREE(*kerb_addr);
1305 return ENOMEM;
1306 }
1307
1308 memcpy(addrs[0]->contents, buf, addrs[0]->length);
1309
1310 addrs[1] = NULL;
1311 }
1312 #elif defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS) /* Heimdal */
1313 {
1314 addrs = (krb5_addresses *)SMB_MALLOC(sizeof(krb5_addresses));
1315 if (addrs == NULL) {
1316 SAFE_FREE(*kerb_addr);
1317 return ENOMEM;
1318 }
1319
1320 memset(addrs, 0, sizeof(krb5_addresses));
1321
1322 addrs->len = 1;
1323 addrs->val = (krb5_address *)SMB_MALLOC(sizeof(krb5_address));
1324 if (addrs->val == NULL) {
1325 SAFE_FREE(addrs);
1326 SAFE_FREE(kerb_addr);
1327 return ENOMEM;
1328 }
1329
1330 addrs->val[0].addr_type = KRB5_ADDR_NETBIOS;
1331 addrs->val[0].address.length = MAX_NETBIOSNAME_LEN;
1332 addrs->val[0].address.data = (unsigned char *)SMB_MALLOC(addrs->val[0].address.length);
1333 if (addrs->val[0].address.data == NULL) {
1334 SAFE_FREE(addrs->val);
1335 SAFE_FREE(addrs);
1336 SAFE_FREE(*kerb_addr);
1337 return ENOMEM;
1338 }
1339
1340 memcpy(addrs->val[0].address.data, buf, addrs->val[0].address.length);
1341 }
1342 #else
1343 #error UNKNOWN_KRB5_ADDRESS_FORMAT
1344 #endif
1345 (*kerb_addr)->addrs = addrs;
1346
1347 return ret;
1348 }
1349
1350 void smb_krb5_free_error(krb5_context context, krb5_error *krberror)
1351 {
1352 #ifdef HAVE_KRB5_FREE_ERROR_CONTENTS /* Heimdal */
1353 krb5_free_error_contents(context, krberror);
1354 #else /* MIT */
1355 krb5_free_error(context, krberror);
1356 #endif
1357 }
1358
1359 krb5_error_code handle_krberror_packet(krb5_context context,
1360 krb5_data *packet)
1361 {
1362 krb5_error_code ret;
1363 bool got_error_code = False;
1364
1365 DEBUG(10,("handle_krberror_packet: got error packet\n"));
1366
1367 #ifdef HAVE_E_DATA_POINTER_IN_KRB5_ERROR /* Heimdal */
1368 {
1369 krb5_error krberror;
1370
1371 if ((ret = krb5_rd_error(context, packet, &krberror))) {
1372 DEBUG(10,("handle_krberror_packet: krb5_rd_error failed with: %s\n",
1373 error_message(ret)));
1374 return ret;
1375 }
1376
1377 if (krberror.e_data == NULL || krberror.e_data->data == NULL) {
1378 ret = (krb5_error_code) krberror.error_code;
1379 got_error_code = True;
1380 }
1381
1382 smb_krb5_free_error(context, &krberror);
1383 }
1384 #else /* MIT */
1385 {
1386 krb5_error *krberror;
1387
1388 if ((ret = krb5_rd_error(context, packet, &krberror))) {
1389 DEBUG(10,("handle_krberror_packet: krb5_rd_error failed with: %s\n",
1390 error_message(ret)));
1391 return ret;
1392 }
1393
1394 if (krberror->e_data.data == NULL) {
1395 #if defined(ERROR_TABLE_BASE_krb5)
1396 ret = ERROR_TABLE_BASE_krb5 + (krb5_error_code) krberror->error;
1397 #else
1398 ret = (krb5_error_code)krberror->error;
1399 #endif
1400 got_error_code = True;
1401 }
1402 smb_krb5_free_error(context, krberror);
1403 }
1404 #endif
1405 if (got_error_code) {
1406 DEBUG(5,("handle_krberror_packet: got KERBERR from kpasswd: %s (%d)\n",
1407 error_message(ret), ret));
1408 }
1409 return ret;
1410 }
1411
1412 krb5_error_code smb_krb5_get_init_creds_opt_alloc(krb5_context context,
1413 krb5_get_init_creds_opt **opt)
1414 {
1415 #ifdef HAVE_KRB5_GET_INIT_CREDS_OPT_ALLOC
1416 /* Heimdal or modern MIT version */
1417 return krb5_get_init_creds_opt_alloc(context, opt);
1418 #else
1419 /* Historical MIT version */
1420 krb5_get_init_creds_opt *my_opt;
1421
1422 *opt = NULL;
1423
1424 if ((my_opt = SMB_MALLOC_P(krb5_get_init_creds_opt)) == NULL) {
1425 return ENOMEM;
1426 }
1427
1428 krb5_get_init_creds_opt_init(my_opt);
1429
1430 *opt = my_opt;
1431 return 0;
1432 #endif /* HAVE_KRB5_GET_INIT_CREDS_OPT_ALLOC */
1433 }
1434
1435 void smb_krb5_get_init_creds_opt_free(krb5_context context,
1436 krb5_get_init_creds_opt *opt)
1437 {
1438 #ifdef HAVE_KRB5_GET_INIT_CREDS_OPT_FREE
1439
1440 #ifdef KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT
1441 /* Modern MIT or Heimdal version */
1442 krb5_get_init_creds_opt_free(context, opt);
1443 #else
1444 /* Heimdal version */
1445 krb5_get_init_creds_opt_free(opt);
1446 #endif /* KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT */
1447
1448 #else /* HAVE_KRB5_GET_INIT_CREDS_OPT_FREE */
1449 /* Historical MIT version */
1450 SAFE_FREE(opt);
1451 opt = NULL;
1452 #endif /* HAVE_KRB5_GET_INIT_CREDS_OPT_FREE */
1453 }
1454
1455 krb5_enctype smb_get_enctype_from_kt_entry(krb5_keytab_entry *kt_entry)
1456 {
1457 return KRB5_KEY_TYPE(KRB5_KT_KEY(kt_entry));
1458 }
1459
1460
1461 /* caller needs to free etype_s */
1462 krb5_error_code smb_krb5_enctype_to_string(krb5_context context,
1463 krb5_enctype enctype,
1464 char **etype_s)
1465 {
1466 #ifdef HAVE_KRB5_ENCTYPE_TO_STRING_WITH_KRB5_CONTEXT_ARG
1467 return krb5_enctype_to_string(context, enctype, etype_s); /* Heimdal */
1468 #elif defined(HAVE_KRB5_ENCTYPE_TO_STRING_WITH_SIZE_T_ARG)
1469 char buf[256];
1470 krb5_error_code ret = krb5_enctype_to_string(enctype, buf, 256); /* MIT */
1471 if (ret) {
1472 return ret;
1473 }
1474 *etype_s = SMB_STRDUP(buf);
1475 if (!*etype_s) {
1476 return ENOMEM;
1477 }
1478 return ret;
1479 #else
1480 #error UNKNOWN_KRB5_ENCTYPE_TO_STRING_FUNCTION
1481 #endif
1482 }
1483
1484 krb5_error_code smb_krb5_mk_error(krb5_context context,
1485 krb5_error_code error_code,
1486 const krb5_principal server,
1487 krb5_data *reply)
1488 {
1489 #ifdef HAVE_SHORT_KRB5_MK_ERROR_INTERFACE /* MIT */
1490 /*
1491 * The MIT interface is *terrible*.
1492 * We have to construct this ourselves...
1493 */
1494 krb5_error e;
1495
1496 memset(&e, 0, sizeof(e));
1497 krb5_us_timeofday(context, &e.stime, &e.susec);
1498 e.server = server;
1499 #if defined(krb5_err_base)
1500 e.error = error_code - krb5_err_base;
1501 #elif defined(ERROR_TABLE_BASE_krb5)
1502 e.error = error_code - ERROR_TABLE_BASE_krb5;
1503 #else
1504 e.error = error_code; /* Almost certainly wrong, but what can we do... ? */
1505 #endif
1506
1507 return krb5_mk_error(context, &e, reply);
1508 #else /* Heimdal. */
1509 return krb5_mk_error(context,
1510 error_code,
1511 NULL,
1512 NULL, /* e_data */
1513 NULL,
1514 server,
1515 NULL,
1516 NULL,
1517 reply);
1518 #endif
1519 }
1520
1521 /**********************************************************************
1522 * Open a krb5 keytab with flags, handles readonly or readwrite access and
1523 * allows to process non-default keytab names.
1524 * @param context krb5_context
1525 * @param keytab_name_req string
1526 * @param write_access bool if writable keytab is required
1527 * @param krb5_keytab pointer to krb5_keytab (close with krb5_kt_close())
1528 * @return krb5_error_code
1529 **********************************************************************/
1530
1531 /* This MAX_NAME_LEN is a constant defined in krb5.h */
1532 #ifndef MAX_KEYTAB_NAME_LEN
1533 #define MAX_KEYTAB_NAME_LEN 1100
1534 #endif
1535
1536 krb5_error_code smb_krb5_open_keytab(krb5_context context,
1537 const char *keytab_name_req,
1538 bool write_access,
1539 krb5_keytab *keytab)
1540 {
1541 krb5_error_code ret = 0;
1542 TALLOC_CTX *mem_ctx;
1543 char keytab_string[MAX_KEYTAB_NAME_LEN];
1544 char *kt_str = NULL;
1545 bool found_valid_name = False;
1546 const char *pragma = "FILE";
1547 const char *tmp = NULL;
1548
1549 if (!write_access && !keytab_name_req) {
1550 /* caller just wants to read the default keytab readonly, so be it */
1551 return krb5_kt_default(context, keytab);
1552 }
1553
1554 mem_ctx = talloc_init("smb_krb5_open_keytab");
1555 if (!mem_ctx) {
1556 return ENOMEM;
1557 }
1558
1559 #ifdef HAVE_WRFILE_KEYTAB
1560 if (write_access) {
1561 pragma = "WRFILE";
1562 }
1563 #endif
1564
1565 if (keytab_name_req) {
1566
1567 if (strlen(keytab_name_req) > MAX_KEYTAB_NAME_LEN) {
1568 ret = KRB5_CONFIG_NOTENUFSPACE;
1569 goto out;
1570 }
1571
1572 if ((strncmp(keytab_name_req, "WRFILE:/", 8) == 0) ||
1573 (strncmp(keytab_name_req, "FILE:/", 6) == 0)) {
1574 tmp = keytab_name_req;
1575 goto resolve;
1576 }
1577
1578 if (keytab_name_req[0] != '/') {
1579 ret = KRB5_KT_BADNAME;
1580 goto out;
1581 }
1582
1583 tmp = talloc_asprintf(mem_ctx, "%s:%s", pragma, keytab_name_req);
1584 if (!tmp) {
1585 ret = ENOMEM;
1586 goto out;
1587 }
1588
1589 goto resolve;
1590 }
1591
1592 /* we need to handle more complex keytab_strings, like:
1593 * "ANY:FILE:/etc/krb5.keytab,krb4:/etc/srvtab" */
1594
1595 ret = krb5_kt_default_name(context, &keytab_string[0], MAX_KEYTAB_NAME_LEN - 2);
1596 if (ret) {
1597 goto out;
1598 }
1599
1600 DEBUG(10,("smb_krb5_open_keytab: krb5_kt_default_name returned %s\n", keytab_string));
1601
1602 tmp = talloc_strdup(mem_ctx, keytab_string);
1603 if (!tmp) {
1604 ret = ENOMEM;
1605 goto out;
1606 }
1607
1608 if (strncmp(tmp, "ANY:", 4) == 0) {
1609 tmp += 4;
1610 }
1611
1612 memset(&keytab_string, '\0', sizeof(keytab_string));
1613
1614 while (next_token_talloc(mem_ctx, &tmp, &kt_str, ",")) {
1615 if (strncmp(kt_str, "WRFILE:", 7) == 0) {
1616 found_valid_name = True;
1617 tmp = kt_str;
1618 tmp += 7;
1619 }
1620
1621 if (strncmp(kt_str, "FILE:", 5) == 0) {
1622 found_valid_name = True;
1623 tmp = kt_str;
1624 tmp += 5;
1625 }
1626
1627 if (tmp[0] == '/') {
1628 /* Treat as a FILE: keytab definition. */
1629 found_valid_name = true;
1630 }
1631
1632 if (found_valid_name) {
1633 if (tmp[0] != '/') {
1634 ret = KRB5_KT_BADNAME;
1635 goto out;
1636 }
1637
1638 tmp = talloc_asprintf(mem_ctx, "%s:%s", pragma, tmp);
1639 if (!tmp) {
1640 ret = ENOMEM;
1641 goto out;
1642 }
1643 break;
1644 }
1645 }
1646
1647 if (!found_valid_name) {
1648 ret = KRB5_KT_UNKNOWN_TYPE;
1649 goto out;
1650 }
1651
1652 resolve:
1653 DEBUG(10,("smb_krb5_open_keytab: resolving: %s\n", tmp));
1654 ret = krb5_kt_resolve(context, tmp, keytab);
1655
1656 out:
1657 TALLOC_FREE(mem_ctx);
1658 return ret;
1659 }
1660
1661 krb5_error_code smb_krb5_keytab_name(TALLOC_CTX *mem_ctx,
1662 krb5_context context,
1663 krb5_keytab keytab,
1664 const char **keytab_name)
1665 {
1666 char keytab_string[MAX_KEYTAB_NAME_LEN];
1667 krb5_error_code ret = 0;
1668
1669 ret = krb5_kt_get_name(context, keytab,
1670 keytab_string, MAX_KEYTAB_NAME_LEN - 2);
1671 if (ret) {
1672 return ret;
1673 }
1674
1675 *keytab_name = talloc_strdup(mem_ctx, keytab_string);
1676 if (!*keytab_name) {
1677 return ENOMEM;
1678 }
1679
1680 return ret;
1681 }
1682
1683 #if defined(HAVE_KRB5_GET_CREDS_OPT_SET_IMPERSONATE) && \
1684 defined(HAVE_KRB5_GET_CREDS_OPT_ALLOC) && \
1685 defined(HAVE_KRB5_GET_CREDS)
1686 static krb5_error_code smb_krb5_get_credentials_for_user_opt(krb5_context context,
1687 krb5_ccache ccache,
1688 krb5_principal me,
1689 krb5_principal server,
1690 krb5_principal impersonate_princ,
1691 krb5_creds **out_creds)
1692 {
1693 krb5_error_code ret;
1694 krb5_get_creds_opt opt;
1695
1696 ret = krb5_get_creds_opt_alloc(context, &opt);
1697 if (ret) {
1698 goto done;
1699 }
1700 krb5_get_creds_opt_add_options(context, opt, KRB5_GC_FORWARDABLE);
1701
1702 if (impersonate_princ) {
1703 ret = krb5_get_creds_opt_set_impersonate(context, opt,
1704 impersonate_princ);
1705 if (ret) {
1706 goto done;
1707 }
1708 }
1709
1710 ret = krb5_get_creds(context, opt, ccache, server, out_creds);
1711 if (ret) {
1712 goto done;
1713 }
1714
1715 done:
1716 if (opt) {
1717 krb5_get_creds_opt_free(context, opt);
1718 }
1719 return ret;
1720 }
1721 #endif /* HAVE_KRB5_GET_CREDS_OPT_SET_IMPERSONATE */
1722
1723 #ifdef HAVE_KRB5_GET_CREDENTIALS_FOR_USER
1724 static krb5_error_code smb_krb5_get_credentials_for_user(krb5_context context,
1725 krb5_ccache ccache,
1726 krb5_principal me,
1727 krb5_principal server,
1728 krb5_principal impersonate_princ,
1729 krb5_creds **out_creds)
1730 {
1731 krb5_error_code ret;
1732 krb5_creds in_creds;
1733
1734 #if !HAVE_DECL_KRB5_GET_CREDENTIALS_FOR_USER
1735 krb5_error_code KRB5_CALLCONV
1736 krb5_get_credentials_for_user(krb5_context context, krb5_flags options,
1737 krb5_ccache ccache, krb5_creds *in_creds,
1738 krb5_data *subject_cert,
1739 krb5_creds **out_creds);
1740 #endif /* !HAVE_DECL_KRB5_GET_CREDENTIALS_FOR_USER */
1741
1742 ZERO_STRUCT(in_creds);
1743
1744 if (impersonate_princ) {
1745
1746 in_creds.server = me;
1747 in_creds.client = impersonate_princ;
1748
1749 ret = krb5_get_credentials_for_user(context,
1750 0, /* krb5_flags options */
1751 ccache,
1752 &in_creds,
1753 NULL, /* krb5_data *subject_cert */
1754 out_creds);
1755 } else {
1756 in_creds.client = me;
1757 in_creds.server = server;
1758
1759 ret = krb5_get_credentials(context, 0, ccache,
1760 &in_creds, out_creds);
1761 }
1762
1763 return ret;
1764 }
1765 #endif /* HAVE_KRB5_GET_CREDENTIALS_FOR_USER */
1766
1767 /*
1768 * smb_krb5_get_credentials
1769 *
1770 * @brief Get krb5 credentials for a server
1771 *
1772 * @param[in] context An initialized krb5_context
1773 * @param[in] ccache An initialized krb5_ccache
1774 * @param[in] me The krb5_principal of the caller
1775 * @param[in] server The krb5_principal of the requested service
1776 * @param[in] impersonate_princ The krb5_principal of a user to impersonate as (optional)
1777 * @param[out] out_creds The returned krb5_creds structure
1778 * @return krb5_error_code
1779 *
1780 */
1781 krb5_error_code smb_krb5_get_credentials(krb5_context context,
1782 krb5_ccache ccache,
1783 krb5_principal me,
1784 krb5_principal server,
1785 krb5_principal impersonate_princ,
1786 krb5_creds **out_creds)
1787 {
1788 krb5_error_code ret;
1789 krb5_creds *creds = NULL;
1790
1791 *out_creds = NULL;
1792
1793 if (impersonate_princ) {
1794 #ifdef HAVE_KRB5_GET_CREDS_OPT_SET_IMPERSONATE /* Heimdal */
1795 ret = smb_krb5_get_credentials_for_user_opt(context, ccache, me, server, impersonate_princ, &creds);
1796 #elif defined(HAVE_KRB5_GET_CREDENTIALS_FOR_USER) /* MIT */
1797 ret = smb_krb5_get_credentials_for_user(context, ccache, me, server, impersonate_princ, &creds);
1798 #else
1799 ret = ENOTSUP;
1800 #endif
1801 } else {
1802 krb5_creds in_creds;
1803
1804 ZERO_STRUCT(in_creds);
1805
1806 in_creds.client = me;
1807 in_creds.server = server;
1808
1809 ret = krb5_get_credentials(context, 0, ccache,
1810 &in_creds, &creds);
1811 }
1812 if (ret) {
1813 goto done;
1814 }
1815
1816 ret = krb5_cc_store_cred(context, ccache, creds);
1817 if (ret) {
1818 goto done;
1819 }
1820
1821 if (out_creds) {
1822 *out_creds = creds;
1823 }
1824
1825 done:
1826 if (creds && ret) {
1827 krb5_free_creds(context, creds);
1828 }
1829
1830 return ret;
1831 }
1832
1833 /*
1834 * smb_krb5_get_creds
1835 *
1836 * @brief Get krb5 credentials for a server
1837 *
1838 * @param[in] server_s The string name of the service
1839 * @param[in] time_offset The offset to the KDCs time in seconds (optional)
1840 * @param[in] cc The krb5 credential cache string name (optional)
1841 * @param[in] impersonate_princ_s The string principal name to impersonate (optional)
1842 * @param[out] creds_p The returned krb5_creds structure
1843 * @return krb5_error_code
1844 *
1845 */
1846 krb5_error_code smb_krb5_get_creds(const char *server_s,
1847 time_t time_offset,
1848 const char *cc,
1849 const char *impersonate_princ_s,
1850 krb5_creds **creds_p)
1851 {
1852 krb5_error_code ret;
1853 krb5_context context = NULL;
1854 krb5_principal me = NULL;
1855 krb5_principal server = NULL;
1856 krb5_principal impersonate_princ = NULL;
1857 krb5_creds *creds = NULL;
1858 krb5_ccache ccache = NULL;
1859
1860 *creds_p = NULL;
1861
1862 initialize_krb5_error_table();
1863 ret = krb5_init_context(&context);
1864 if (ret) {
1865 goto done;
1866 }
1867
1868 if (time_offset != 0) {
1869 krb5_set_real_time(context, time(NULL) + time_offset, 0);
1870 }
1871
1872 ret = krb5_cc_resolve(context, cc ? cc :
1873 krb5_cc_default_name(context), &ccache);
1874 if (ret) {
1875 goto done;
1876 }
1877
1878 ret = krb5_cc_get_principal(context, ccache, &me);
1879 if (ret) {
1880 goto done;
1881 }
1882
1883 ret = smb_krb5_parse_name(context, server_s, &server);
1884 if (ret) {
1885 goto done;
1886 }
1887
1888 if (impersonate_princ_s) {
1889 ret = smb_krb5_parse_name(context, impersonate_princ_s,
1890 &impersonate_princ);
1891 if (ret) {
1892 goto done;
1893 }
1894 }
1895
1896 ret = smb_krb5_get_credentials(context, ccache,
1897 me, server, impersonate_princ,
1898 &creds);
1899 if (ret) {
1900 goto done;
1901 }
1902
1903 ret = krb5_cc_store_cred(context, ccache, creds);
1904 if (ret) {
1905 goto done;
1906 }
1907
1908 if (creds_p) {
1909 *creds_p = creds;
1910 }
1911
1912 DEBUG(1,("smb_krb5_get_creds: got ticket for %s\n",
1913 server_s));
1914
1915 if (impersonate_princ_s) {
1916 char *client = NULL;
1917
1918 ret = smb_krb5_unparse_name(talloc_tos(), context, creds->client, &client);
1919 if (ret) {
1920 goto done;
1921 }
1922 DEBUGADD(1,("smb_krb5_get_creds: using S4U2SELF impersonation as %s\n",
1923 client));
1924 TALLOC_FREE(client);
1925 }
1926
1927 done:
1928 if (!context) {
1929 return ret;
1930 }
1931
1932 if (creds && ret) {
1933 krb5_free_creds(context, creds);
1934 }
1935 if (server) {
1936 krb5_free_principal(context, server);
1937 }
1938 if (me) {
1939 krb5_free_principal(context, me);
1940 }
1941 if (impersonate_princ) {
1942 krb5_free_principal(context, impersonate_princ);
1943 }
1944 if (ccache) {
1945 krb5_cc_close(context, ccache);
1946 }
1947 krb5_free_context(context);
1948
1949 return ret;
1950 }
1951
1952 /*
1953 * smb_krb5_principal_get_realm
1954 *
1955 * @brief Get realm of a principal
1956 *
1957 * @param[in] context The krb5_context
1958 * @param[in] principal The principal
1959 * @return pointer to the realm
1960 *
1961 */
1962
1963 char *smb_krb5_principal_get_realm(krb5_context context,
1964 krb5_principal principal)
1965 {
1966 #ifdef HAVE_KRB5_PRINCIPAL_GET_REALM /* Heimdal */
1967 return discard_const_p(char, krb5_principal_get_realm(context, principal));
1968 #elif defined(krb5_princ_realm) /* MIT */
1969 krb5_data *realm;
1970 realm = krb5_princ_realm(context, principal);
1971 return discard_const_p(char, realm->data);
1972 #else
1973 return NULL;
1974 #endif
1975 }
1976
1977 #else /* HAVE_KRB5 */
1978 /* this saves a few linking headaches */
1979 int cli_krb5_get_ticket(TALLOC_CTX *mem_ctx,
1980 const char *principal, time_t time_offset,
1981 DATA_BLOB *ticket, DATA_BLOB *session_key_krb5,
1982 uint32_t extra_ap_opts,
1983 const char *ccname, time_t *tgs_expire,
1984 const char *impersonate_princ_s)
1985 {
1986 DEBUG(0,("NO KERBEROS SUPPORT\n"));
1987 return 1;
1988 }
1989
1990 bool unwrap_pac(TALLOC_CTX *mem_ctx, DATA_BLOB *auth_data, DATA_BLOB *unwrapped_pac_data)
1991 {
1992 DEBUG(0,("NO KERBEROS SUPPORT\n"));
1993 return false;
1994 }
1995
1996 #endif /* HAVE_KRB5 */
reg import