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auth: Allow domain join to itself when we are a PDC
[Samba.git] / source3 / libnet / libnet_join.c
blobdd87c6d4255062b9878d60204f29012ac91cb1d5
1 /*
2 * Unix SMB/CIFS implementation.
3 * libnet Join Support
4 * Copyright (C) Gerald (Jerry) Carter 2006
5 * Copyright (C) Guenther Deschner 2007-2008
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "ads.h"
23 #include "librpc/gen_ndr/ndr_libnet_join.h"
24 #include "libnet/libnet_join.h"
25 #include "libcli/auth/libcli_auth.h"
26 #include "../librpc/gen_ndr/ndr_samr_c.h"
27 #include "rpc_client/init_samr.h"
28 #include "../librpc/gen_ndr/ndr_lsa_c.h"
29 #include "rpc_client/cli_lsarpc.h"
30 #include "../librpc/gen_ndr/ndr_netlogon.h"
31 #include "rpc_client/cli_netlogon.h"
32 #include "lib/smbconf/smbconf.h"
33 #include "lib/smbconf/smbconf_reg.h"
34 #include "../libds/common/flags.h"
35 #include "secrets.h"
36 #include "rpc_client/init_lsa.h"
37 #include "rpc_client/cli_pipe.h"
38 #include "../libcli/security/security.h"
39 #include "passdb.h"
40 #include "libsmb/libsmb.h"
41 #include "../libcli/smb/smbXcli_base.h"
42 #include "lib/param/loadparm.h"
43 #include "libcli/auth/netlogon_creds_cli.h"
44 #include "auth/credentials/credentials.h"
45
46 /****************************************************************
47 ****************************************************************/
48
49 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
50 do { \
51 char *str = NULL; \
52 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
53 DEBUG(1,("libnet_Join:\n%s", str)); \
54 TALLOC_FREE(str); \
55 } while (0)
56
57 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
58 LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
59 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
60 LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
61
62 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
63 do { \
64 char *str = NULL; \
65 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
66 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
67 TALLOC_FREE(str); \
68 } while (0)
69
70 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
71 LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
72 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
73 LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
74
75 /****************************************************************
76 ****************************************************************/
77
78 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
79 struct libnet_JoinCtx *r,
80 const char *format, ...)
81 {
82 va_list args;
83
84 if (r->out.error_string) {
85 return;
86 }
87
88 va_start(args, format);
89 r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
90 va_end(args);
91 }
92
93 /****************************************************************
94 ****************************************************************/
95
96 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
97 struct libnet_UnjoinCtx *r,
98 const char *format, ...)
99 {
100 va_list args;
101
102 if (r->out.error_string) {
103 return;
104 }
105
106 va_start(args, format);
107 r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
108 va_end(args);
109 }
110
111 #ifdef HAVE_ADS
112
113 /****************************************************************
114 ****************************************************************/
115
116 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
117 const char *netbios_domain_name,
118 const char *dc_name,
119 const char *user_name,
120 const char *password,
121 ADS_STRUCT **ads)
122 {
123 ADS_STATUS status;
124 ADS_STRUCT *my_ads = NULL;
125 char *cp;
126
127 my_ads = ads_init(dns_domain_name,
128 netbios_domain_name,
129 dc_name);
130 if (!my_ads) {
131 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
132 }
133
134 if (user_name) {
135 SAFE_FREE(my_ads->auth.user_name);
136 my_ads->auth.user_name = SMB_STRDUP(user_name);
137 if ((cp = strchr_m(my_ads->auth.user_name, '@'))!=0) {
138 *cp++ = '\0';
139 SAFE_FREE(my_ads->auth.realm);
140 my_ads->auth.realm = smb_xstrdup(cp);
141 if (!strupper_m(my_ads->auth.realm)) {
142 ads_destroy(&my_ads);
143 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
144 }
145 }
146 }
147
148 if (password) {
149 SAFE_FREE(my_ads->auth.password);
150 my_ads->auth.password = SMB_STRDUP(password);
151 }
152
153 status = ads_connect_user_creds(my_ads);
154 if (!ADS_ERR_OK(status)) {
155 ads_destroy(&my_ads);
156 return status;
157 }
158
159 *ads = my_ads;
160 return ADS_SUCCESS;
161 }
162
163 /****************************************************************
164 ****************************************************************/
165
166 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
167 struct libnet_JoinCtx *r)
168 {
169 ADS_STATUS status;
170
171 status = libnet_connect_ads(r->out.dns_domain_name,
172 r->out.netbios_domain_name,
173 r->in.dc_name,
174 r->in.admin_account,
175 r->in.admin_password,
176 &r->in.ads);
177 if (!ADS_ERR_OK(status)) {
178 libnet_join_set_error_string(mem_ctx, r,
179 "failed to connect to AD: %s",
180 ads_errstr(status));
181 return status;
182 }
183
184 if (!r->out.netbios_domain_name) {
185 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
186 r->in.ads->server.workgroup);
187 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
188 }
189
190 if (!r->out.dns_domain_name) {
191 r->out.dns_domain_name = talloc_strdup(mem_ctx,
192 r->in.ads->config.realm);
193 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
194 }
195
196 r->out.domain_is_ad = true;
197
198 return ADS_SUCCESS;
199 }
200
201 /****************************************************************
202 ****************************************************************/
203
204 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
205 struct libnet_UnjoinCtx *r)
206 {
207 ADS_STATUS status;
208
209 status = libnet_connect_ads(r->in.domain_name,
210 r->in.domain_name,
211 r->in.dc_name,
212 r->in.admin_account,
213 r->in.admin_password,
214 &r->in.ads);
215 if (!ADS_ERR_OK(status)) {
216 libnet_unjoin_set_error_string(mem_ctx, r,
217 "failed to connect to AD: %s",
218 ads_errstr(status));
219 }
220
221 return status;
222 }
223
224 /****************************************************************
225 join a domain using ADS (LDAP mods)
226 ****************************************************************/
227
228 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
229 struct libnet_JoinCtx *r)
230 {
231 ADS_STATUS status;
232 LDAPMessage *res = NULL;
233 const char *attrs[] = { "dn", NULL };
234 bool moved = false;
235
236 status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
237 if (!ADS_ERR_OK(status)) {
238 return status;
239 }
240
241 status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
242 if (!ADS_ERR_OK(status)) {
243 return status;
244 }
245
246 if (ads_count_replies(r->in.ads, res) != 1) {
247 ads_msgfree(r->in.ads, res);
248 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
249 }
250
251 ads_msgfree(r->in.ads, res);
252
253 /* Attempt to create the machine account and bail if this fails.
254 Assume that the admin wants exactly what they requested */
255
256 status = ads_create_machine_acct(r->in.ads,
257 r->in.machine_name,
258 r->in.account_ou);
259
260 if (ADS_ERR_OK(status)) {
261 DEBUG(1,("machine account creation created\n"));
262 return status;
263 } else if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
264 (status.err.rc == LDAP_ALREADY_EXISTS)) {
265 status = ADS_SUCCESS;
266 }
267
268 if (!ADS_ERR_OK(status)) {
269 DEBUG(1,("machine account creation failed\n"));
270 return status;
271 }
272
273 status = ads_move_machine_acct(r->in.ads,
274 r->in.machine_name,
275 r->in.account_ou,
276 &moved);
277 if (!ADS_ERR_OK(status)) {
278 DEBUG(1,("failure to locate/move pre-existing "
279 "machine account\n"));
280 return status;
281 }
282
283 DEBUG(1,("The machine account %s the specified OU.\n",
284 moved ? "was moved into" : "already exists in"));
285
286 return status;
287 }
288
289 /****************************************************************
290 ****************************************************************/
291
292 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
293 struct libnet_UnjoinCtx *r)
294 {
295 ADS_STATUS status;
296
297 if (!r->in.ads) {
298 status = libnet_unjoin_connect_ads(mem_ctx, r);
299 if (!ADS_ERR_OK(status)) {
300 libnet_unjoin_set_error_string(mem_ctx, r,
301 "failed to connect to AD: %s",
302 ads_errstr(status));
303 return status;
304 }
305 }
306
307 status = ads_leave_realm(r->in.ads, r->in.machine_name);
308 if (!ADS_ERR_OK(status)) {
309 libnet_unjoin_set_error_string(mem_ctx, r,
310 "failed to leave realm: %s",
311 ads_errstr(status));
312 return status;
313 }
314
315 return ADS_SUCCESS;
316 }
317
318 /****************************************************************
319 ****************************************************************/
320
321 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
322 struct libnet_JoinCtx *r)
323 {
324 ADS_STATUS status;
325 LDAPMessage *res = NULL;
326 char *dn = NULL;
327
328 if (!r->in.machine_name) {
329 return ADS_ERROR(LDAP_NO_MEMORY);
330 }
331
332 status = ads_find_machine_acct(r->in.ads,
333 &res,
334 r->in.machine_name);
335 if (!ADS_ERR_OK(status)) {
336 return status;
337 }
338
339 if (ads_count_replies(r->in.ads, res) != 1) {
340 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
341 goto done;
342 }
343
344 dn = ads_get_dn(r->in.ads, mem_ctx, res);
345 if (!dn) {
346 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
347 goto done;
348 }
349
350 r->out.dn = talloc_strdup(mem_ctx, dn);
351 if (!r->out.dn) {
352 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
353 goto done;
354 }
355
356 done:
357 ads_msgfree(r->in.ads, res);
358 TALLOC_FREE(dn);
359
360 return status;
361 }
362
363 static ADS_STATUS libnet_join_get_machine_spns(TALLOC_CTX *mem_ctx,
364 struct libnet_JoinCtx *r,
365 char ***spn_array,
366 size_t *num_spns)
367 {
368 ADS_STATUS status;
369
370 if (r->in.machine_name == NULL) {
371 return ADS_ERROR_SYSTEM(EINVAL);
372 }
373
374 status = ads_get_service_principal_names(mem_ctx,
375 r->in.ads,
376 r->in.machine_name,
377 spn_array,
378 num_spns);
379
380 return status;
381 }
382
383 /****************************************************************
384 Set a machines dNSHostName and servicePrincipalName attributes
385 ****************************************************************/
386
387 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
388 struct libnet_JoinCtx *r)
389 {
390 ADS_STATUS status;
391 ADS_MODLIST mods;
392 fstring my_fqdn;
393 const char **spn_array = NULL;
394 size_t num_spns = 0;
395 char *spn = NULL;
396 bool ok;
397
398 /* Find our DN */
399
400 status = libnet_join_find_machine_acct(mem_ctx, r);
401 if (!ADS_ERR_OK(status)) {
402 return status;
403 }
404
405 status = libnet_join_get_machine_spns(mem_ctx,
406 r,
407 discard_const_p(char **, &spn_array),
408 &num_spns);
409 if (!ADS_ERR_OK(status)) {
410 DEBUG(5, ("Retrieving the servicePrincipalNames failed.\n"));
411 }
412
413 /* Windows only creates HOST/shortname & HOST/fqdn. */
414
415 spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
416 if (!spn) {
417 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
418 }
419 if (!strupper_m(spn)) {
420 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
421 }
422
423 ok = ads_element_in_array(spn_array, num_spns, spn);
424 if (!ok) {
425 ok = add_string_to_array(spn_array, spn,
426 &spn_array, &num_spns);
427 if (!ok) {
428 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
429 }
430 }
431
432 if (!name_to_fqdn(my_fqdn, r->in.machine_name)
433 || (strchr(my_fqdn, '.') == NULL)) {
434 fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
435 r->out.dns_domain_name);
436 }
437
438 if (!strlower_m(my_fqdn)) {
439 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
440 }
441
442 if (!strequal(my_fqdn, r->in.machine_name)) {
443 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
444 if (!spn) {
445 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
446 }
447
448 ok = ads_element_in_array(spn_array, num_spns, spn);
449 if (!ok) {
450 ok = add_string_to_array(spn_array, spn,
451 &spn_array, &num_spns);
452 if (!ok) {
453 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
454 }
455 }
456 }
457
458 /* make sure to NULL terminate the array */
459 spn_array = talloc_realloc(mem_ctx, spn_array, const char *, num_spns + 1);
460 if (spn_array == NULL) {
461 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
462 }
463 spn_array[num_spns] = NULL;
464
465 mods = ads_init_mods(mem_ctx);
466 if (!mods) {
467 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
468 }
469
470 /* fields of primary importance */
471
472 status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
473 if (!ADS_ERR_OK(status)) {
474 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
475 }
476
477 status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
478 spn_array);
479 if (!ADS_ERR_OK(status)) {
480 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
481 }
482
483 return ads_gen_mod(r->in.ads, r->out.dn, mods);
484 }
485
486 /****************************************************************
487 ****************************************************************/
488
489 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
490 struct libnet_JoinCtx *r)
491 {
492 ADS_STATUS status;
493 ADS_MODLIST mods;
494
495 if (!r->in.create_upn) {
496 return ADS_SUCCESS;
497 }
498
499 /* Find our DN */
500
501 status = libnet_join_find_machine_acct(mem_ctx, r);
502 if (!ADS_ERR_OK(status)) {
503 return status;
504 }
505
506 if (!r->in.upn) {
507 const char *realm = r->out.dns_domain_name;
508
509 /* in case we are about to generate a keytab during the join
510 * make sure the default upn we create is usable with kinit -k.
511 * gd */
512
513 if (USE_KERBEROS_KEYTAB) {
514 realm = talloc_strdup_upper(mem_ctx,
515 r->out.dns_domain_name);
516 }
517
518 if (!realm) {
519 return ADS_ERROR(LDAP_NO_MEMORY);
520 }
521
522 r->in.upn = talloc_asprintf(mem_ctx,
523 "host/%s@%s",
524 r->in.machine_name,
525 realm);
526 if (!r->in.upn) {
527 return ADS_ERROR(LDAP_NO_MEMORY);
528 }
529 }
530
531 /* now do the mods */
532
533 mods = ads_init_mods(mem_ctx);
534 if (!mods) {
535 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
536 }
537
538 /* fields of primary importance */
539
540 status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
541 if (!ADS_ERR_OK(status)) {
542 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
543 }
544
545 return ads_gen_mod(r->in.ads, r->out.dn, mods);
546 }
547
548
549 /****************************************************************
550 ****************************************************************/
551
552 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
553 struct libnet_JoinCtx *r)
554 {
555 ADS_STATUS status;
556 ADS_MODLIST mods;
557 char *os_sp = NULL;
558
559 if (!r->in.os_name || !r->in.os_version ) {
560 return ADS_SUCCESS;
561 }
562
563 /* Find our DN */
564
565 status = libnet_join_find_machine_acct(mem_ctx, r);
566 if (!ADS_ERR_OK(status)) {
567 return status;
568 }
569
570 /* now do the mods */
571
572 mods = ads_init_mods(mem_ctx);
573 if (!mods) {
574 return ADS_ERROR(LDAP_NO_MEMORY);
575 }
576
577 os_sp = talloc_asprintf(mem_ctx, "Samba %s", samba_version_string());
578 if (!os_sp) {
579 return ADS_ERROR(LDAP_NO_MEMORY);
580 }
581
582 /* fields of primary importance */
583
584 status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
585 r->in.os_name);
586 if (!ADS_ERR_OK(status)) {
587 return status;
588 }
589
590 status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
591 r->in.os_version);
592 if (!ADS_ERR_OK(status)) {
593 return status;
594 }
595
596 status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
597 os_sp);
598 if (!ADS_ERR_OK(status)) {
599 return status;
600 }
601
602 return ads_gen_mod(r->in.ads, r->out.dn, mods);
603 }
604
605 /****************************************************************
606 ****************************************************************/
607
608 static ADS_STATUS libnet_join_set_etypes(TALLOC_CTX *mem_ctx,
609 struct libnet_JoinCtx *r)
610 {
611 ADS_STATUS status;
612 ADS_MODLIST mods;
613 uint32_t etype_list = ENC_CRC32 | ENC_RSA_MD5 | ENC_RC4_HMAC_MD5;
614 const char *etype_list_str;
615
616 #ifdef HAVE_ENCTYPE_AES128_CTS_HMAC_SHA1_96
617 etype_list |= ENC_HMAC_SHA1_96_AES128;
618 #endif
619 #ifdef HAVE_ENCTYPE_AES256_CTS_HMAC_SHA1_96
620 etype_list |= ENC_HMAC_SHA1_96_AES256;
621 #endif
622
623 etype_list_str = talloc_asprintf(mem_ctx, "%d", etype_list);
624 if (!etype_list_str) {
625 return ADS_ERROR(LDAP_NO_MEMORY);
626 }
627
628 /* Find our DN */
629
630 status = libnet_join_find_machine_acct(mem_ctx, r);
631 if (!ADS_ERR_OK(status)) {
632 return status;
633 }
634
635 /* now do the mods */
636
637 mods = ads_init_mods(mem_ctx);
638 if (!mods) {
639 return ADS_ERROR(LDAP_NO_MEMORY);
640 }
641
642 status = ads_mod_str(mem_ctx, &mods, "msDS-SupportedEncryptionTypes",
643 etype_list_str);
644 if (!ADS_ERR_OK(status)) {
645 return status;
646 }
647
648 return ads_gen_mod(r->in.ads, r->out.dn, mods);
649 }
650
651 /****************************************************************
652 ****************************************************************/
653
654 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
655 struct libnet_JoinCtx *r)
656 {
657 if (!USE_SYSTEM_KEYTAB) {
658 return true;
659 }
660
661 if (ads_keytab_create_default(r->in.ads) != 0) {
662 return false;
663 }
664
665 return true;
666 }
667
668 /****************************************************************
669 ****************************************************************/
670
671 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
672 struct libnet_JoinCtx *r)
673 {
674 uint32_t domain_func;
675 ADS_STATUS status;
676 const char *salt = NULL;
677 char *std_salt = NULL;
678
679 status = ads_domain_func_level(r->in.ads, &domain_func);
680 if (!ADS_ERR_OK(status)) {
681 libnet_join_set_error_string(mem_ctx, r,
682 "failed to determine domain functional level: %s",
683 ads_errstr(status));
684 return false;
685 }
686
687 /* go ahead and setup the default salt */
688
689 std_salt = kerberos_standard_des_salt();
690 if (!std_salt) {
691 libnet_join_set_error_string(mem_ctx, r,
692 "failed to obtain standard DES salt");
693 return false;
694 }
695
696 salt = talloc_strdup(mem_ctx, std_salt);
697 if (!salt) {
698 return false;
699 }
700
701 SAFE_FREE(std_salt);
702
703 /* if it's a Windows functional domain, we have to look for the UPN */
704
705 if (domain_func == DS_DOMAIN_FUNCTION_2000) {
706 char *upn;
707
708 upn = ads_get_upn(r->in.ads, mem_ctx,
709 r->in.machine_name);
710 if (upn) {
711 salt = talloc_strdup(mem_ctx, upn);
712 if (!salt) {
713 return false;
714 }
715 }
716 }
717
718 return kerberos_secrets_store_des_salt(salt);
719 }
720
721 /****************************************************************
722 ****************************************************************/
723
724 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
725 struct libnet_JoinCtx *r)
726 {
727 ADS_STATUS status;
728 uint32_t func_level = 0;
729
730 if (!r->in.ads) {
731 status = libnet_join_connect_ads(mem_ctx, r);
732 if (!ADS_ERR_OK(status)) {
733 return status;
734 }
735 }
736
737 status = libnet_join_set_machine_spn(mem_ctx, r);
738 if (!ADS_ERR_OK(status)) {
739 libnet_join_set_error_string(mem_ctx, r,
740 "Failed to set machine spn: %s\n"
741 "Do you have sufficient permissions to create machine "
742 "accounts?",
743 ads_errstr(status));
744 return status;
745 }
746
747 status = libnet_join_set_os_attributes(mem_ctx, r);
748 if (!ADS_ERR_OK(status)) {
749 libnet_join_set_error_string(mem_ctx, r,
750 "failed to set machine os attributes: %s",
751 ads_errstr(status));
752 return status;
753 }
754
755 status = libnet_join_set_machine_upn(mem_ctx, r);
756 if (!ADS_ERR_OK(status)) {
757 libnet_join_set_error_string(mem_ctx, r,
758 "failed to set machine upn: %s",
759 ads_errstr(status));
760 return status;
761 }
762
763 status = ads_domain_func_level(r->in.ads, &func_level);
764 if (!ADS_ERR_OK(status)) {
765 libnet_join_set_error_string(mem_ctx, r,
766 "failed to query domain controller functional level: %s",
767 ads_errstr(status));
768 return status;
769 }
770
771 if (func_level >= DS_DOMAIN_FUNCTION_2008) {
772 status = libnet_join_set_etypes(mem_ctx, r);
773 if (!ADS_ERR_OK(status)) {
774 libnet_join_set_error_string(mem_ctx, r,
775 "failed to set machine kerberos encryption types: %s",
776 ads_errstr(status));
777 return status;
778 }
779 }
780
781 if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
782 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
783 }
784
785 if (!libnet_join_create_keytab(mem_ctx, r)) {
786 libnet_join_set_error_string(mem_ctx, r,
787 "failed to create kerberos keytab");
788 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
789 }
790
791 return ADS_SUCCESS;
792 }
793 #endif /* HAVE_ADS */
794
795 /****************************************************************
796 Store the machine password and domain SID
797 ****************************************************************/
798
799 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
800 struct libnet_JoinCtx *r)
801 {
802 if (!secrets_store_domain_sid(r->out.netbios_domain_name,
803 r->out.domain_sid))
804 {
805 DEBUG(1,("Failed to save domain sid\n"));
806 return false;
807 }
808
809 if (!secrets_store_machine_password(r->in.machine_password,
810 r->out.netbios_domain_name,
811 r->in.secure_channel_type))
812 {
813 DEBUG(1,("Failed to save machine password\n"));
814 return false;
815 }
816
817 return true;
818 }
819
820 /****************************************************************
821 Connect dc's IPC$ share
822 ****************************************************************/
823
824 static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
825 const char *user,
826 const char *domain,
827 const char *pass,
828 bool use_kerberos,
829 struct cli_state **cli)
830 {
831 int flags = 0;
832
833 if (use_kerberos) {
834 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
835 }
836
837 if (use_kerberos && pass) {
838 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
839 }
840
841 return cli_full_connection(cli, NULL,
842 dc,
843 NULL, 0,
844 "IPC$", "IPC",
845 user,
846 domain,
847 pass,
848 flags,
849 SMB_SIGNING_DEFAULT);
850 }
851
852 /****************************************************************
853 Lookup domain dc's info
854 ****************************************************************/
855
856 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
857 struct libnet_JoinCtx *r,
858 struct cli_state **cli)
859 {
860 struct rpc_pipe_client *pipe_hnd = NULL;
861 struct policy_handle lsa_pol;
862 NTSTATUS status, result;
863 union lsa_PolicyInformation *info = NULL;
864 struct dcerpc_binding_handle *b;
865
866 status = libnet_join_connect_dc_ipc(r->in.dc_name,
867 r->in.admin_account,
868 r->in.admin_domain,
869 r->in.admin_password,
870 r->in.use_kerberos,
871 cli);
872 if (!NT_STATUS_IS_OK(status)) {
873 goto done;
874 }
875
876 status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc,
877 &pipe_hnd);
878 if (!NT_STATUS_IS_OK(status)) {
879 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
880 nt_errstr(status)));
881 goto done;
882 }
883
884 b = pipe_hnd->binding_handle;
885
886 status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
887 SEC_FLAG_MAXIMUM_ALLOWED, &lsa_pol);
888 if (!NT_STATUS_IS_OK(status)) {
889 goto done;
890 }
891
892 status = dcerpc_lsa_QueryInfoPolicy2(b, mem_ctx,
893 &lsa_pol,
894 LSA_POLICY_INFO_DNS,
895 &info,
896 &result);
897 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
898 r->out.domain_is_ad = true;
899 r->out.netbios_domain_name = info->dns.name.string;
900 r->out.dns_domain_name = info->dns.dns_domain.string;
901 r->out.forest_name = info->dns.dns_forest.string;
902 r->out.domain_sid = dom_sid_dup(mem_ctx, info->dns.sid);
903 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
904 }
905
906 if (!NT_STATUS_IS_OK(status)) {
907 status = dcerpc_lsa_QueryInfoPolicy(b, mem_ctx,
908 &lsa_pol,
909 LSA_POLICY_INFO_ACCOUNT_DOMAIN,
910 &info,
911 &result);
912 if (!NT_STATUS_IS_OK(status)) {
913 goto done;
914 }
915 if (!NT_STATUS_IS_OK(result)) {
916 status = result;
917 goto done;
918 }
919
920 r->out.netbios_domain_name = info->account_domain.name.string;
921 r->out.domain_sid = dom_sid_dup(mem_ctx, info->account_domain.sid);
922 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
923 }
924
925 dcerpc_lsa_Close(b, mem_ctx, &lsa_pol, &result);
926 TALLOC_FREE(pipe_hnd);
927
928 done:
929 return status;
930 }
931
932 /****************************************************************
933 Do the domain join unsecure
934 ****************************************************************/
935
936 static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
937 struct libnet_JoinCtx *r,
938 struct cli_state *cli)
939 {
940 TALLOC_CTX *frame = talloc_stackframe();
941 struct rpc_pipe_client *netlogon_pipe = NULL;
942 struct netlogon_creds_cli_context *netlogon_creds = NULL;
943 struct samr_Password current_nt_hash;
944 const char *account_name = NULL;
945 NTSTATUS status;
946
947 status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon,
948 &netlogon_pipe);
949 if (!NT_STATUS_IS_OK(status)) {
950 TALLOC_FREE(frame);
951 return status;
952 }
953
954 if (!r->in.machine_password) {
955 r->in.machine_password = generate_random_password(mem_ctx,
956 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH,
957 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
958 if (r->in.machine_password == NULL) {
959 TALLOC_FREE(frame);
960 return NT_STATUS_NO_MEMORY;
961 }
962 }
963
964 /* according to WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED */
965 E_md4hash(r->in.admin_password, current_nt_hash.hash);
966
967 account_name = talloc_asprintf(frame, "%s$",
968 r->in.machine_name);
969 if (account_name == NULL) {
970 TALLOC_FREE(frame);
971 return NT_STATUS_NO_MEMORY;
972 }
973
974 status = rpccli_create_netlogon_creds(netlogon_pipe->desthost,
975 r->in.domain_name,
976 account_name,
977 r->in.secure_channel_type,
978 r->in.msg_ctx,
979 frame,
980 &netlogon_creds);
981 if (!NT_STATUS_IS_OK(status)) {
982 TALLOC_FREE(frame);
983 return status;
984 }
985
986 status = rpccli_setup_netlogon_creds(cli, NCACN_NP,
987 netlogon_creds,
988 true, /* force_reauth */
989 current_nt_hash,
990 NULL); /* previous_nt_hash */
991 if (!NT_STATUS_IS_OK(status)) {
992 TALLOC_FREE(frame);
993 return status;
994 }
995
996 status = netlogon_creds_cli_ServerPasswordSet(netlogon_creds,
997 netlogon_pipe->binding_handle,
998 r->in.machine_password,
999 NULL); /* new_version */
1000 if (!NT_STATUS_IS_OK(status)) {
1001 TALLOC_FREE(frame);
1002 return status;
1003 }
1004
1005 TALLOC_FREE(frame);
1006 return NT_STATUS_OK;
1007 }
1008
1009 /****************************************************************
1010 Do the domain join
1011 ****************************************************************/
1012
1013 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
1014 struct libnet_JoinCtx *r,
1015 struct cli_state *cli)
1016 {
1017 struct rpc_pipe_client *pipe_hnd = NULL;
1018 struct policy_handle sam_pol, domain_pol, user_pol;
1019 NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
1020 char *acct_name;
1021 struct lsa_String lsa_acct_name;
1022 uint32_t user_rid;
1023 uint32_t acct_flags = ACB_WSTRUST;
1024 struct samr_Ids user_rids;
1025 struct samr_Ids name_types;
1026 union samr_UserInfo user_info;
1027 struct dcerpc_binding_handle *b = NULL;
1028 unsigned int old_timeout = 0;
1029
1030 DATA_BLOB session_key = data_blob_null;
1031 struct samr_CryptPassword crypt_pwd;
1032 struct samr_CryptPasswordEx crypt_pwd_ex;
1033
1034 ZERO_STRUCT(sam_pol);
1035 ZERO_STRUCT(domain_pol);
1036 ZERO_STRUCT(user_pol);
1037
1038 switch (r->in.secure_channel_type) {
1039 case SEC_CHAN_WKSTA:
1040 acct_flags = ACB_WSTRUST;
1041 break;
1042 case SEC_CHAN_BDC:
1043 acct_flags = ACB_SVRTRUST;
1044 break;
1045 default:
1046 return NT_STATUS_INVALID_PARAMETER;
1047 }
1048
1049 if (!r->in.machine_password) {
1050 r->in.machine_password = generate_random_password(mem_ctx,
1051 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH,
1052 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
1053 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
1054 }
1055
1056 /* Open the domain */
1057
1058 status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr,
1059 &pipe_hnd);
1060 if (!NT_STATUS_IS_OK(status)) {
1061 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1062 nt_errstr(status)));
1063 goto done;
1064 }
1065
1066 b = pipe_hnd->binding_handle;
1067
1068 status = cli_get_session_key(mem_ctx, pipe_hnd, &session_key);
1069 if (!NT_STATUS_IS_OK(status)) {
1070 DEBUG(0,("Error getting session_key of SAM pipe. Error was %s\n",
1071 nt_errstr(status)));
1072 goto done;
1073 }
1074
1075 status = dcerpc_samr_Connect2(b, mem_ctx,
1076 pipe_hnd->desthost,
1077 SAMR_ACCESS_ENUM_DOMAINS
1078 | SAMR_ACCESS_LOOKUP_DOMAIN,
1079 &sam_pol,
1080 &result);
1081 if (!NT_STATUS_IS_OK(status)) {
1082 goto done;
1083 }
1084 if (!NT_STATUS_IS_OK(result)) {
1085 status = result;
1086 goto done;
1087 }
1088
1089 status = dcerpc_samr_OpenDomain(b, mem_ctx,
1090 &sam_pol,
1091 SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
1092 | SAMR_DOMAIN_ACCESS_CREATE_USER
1093 | SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
1094 r->out.domain_sid,
1095 &domain_pol,
1096 &result);
1097 if (!NT_STATUS_IS_OK(status)) {
1098 goto done;
1099 }
1100 if (!NT_STATUS_IS_OK(result)) {
1101 status = result;
1102 goto done;
1103 }
1104
1105 /* Create domain user */
1106
1107 acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1108 if (!strlower_m(acct_name)) {
1109 status = NT_STATUS_INVALID_PARAMETER;
1110 goto done;
1111 }
1112
1113 init_lsa_String(&lsa_acct_name, acct_name);
1114
1115 if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
1116 uint32_t access_desired =
1117 SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
1118 SEC_STD_WRITE_DAC | SEC_STD_DELETE |
1119 SAMR_USER_ACCESS_SET_PASSWORD |
1120 SAMR_USER_ACCESS_GET_ATTRIBUTES |
1121 SAMR_USER_ACCESS_SET_ATTRIBUTES;
1122 uint32_t access_granted = 0;
1123
1124 DEBUG(10,("Creating account with desired access mask: %d\n",
1125 access_desired));
1126
1127 status = dcerpc_samr_CreateUser2(b, mem_ctx,
1128 &domain_pol,
1129 &lsa_acct_name,
1130 acct_flags,
1131 access_desired,
1132 &user_pol,
1133 &access_granted,
1134 &user_rid,
1135 &result);
1136 if (!NT_STATUS_IS_OK(status)) {
1137 goto done;
1138 }
1139
1140 status = result;
1141 if (!NT_STATUS_IS_OK(status) &&
1142 !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1143
1144 DEBUG(10,("Creation of workstation account failed: %s\n",
1145 nt_errstr(status)));
1146
1147 /* If NT_STATUS_ACCESS_DENIED then we have a valid
1148 username/password combo but the user does not have
1149 administrator access. */
1150
1151 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
1152 libnet_join_set_error_string(mem_ctx, r,
1153 "User specified does not have "
1154 "administrator privileges");
1155 }
1156
1157 goto done;
1158 }
1159
1160 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1161 if (!(r->in.join_flags &
1162 WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
1163 goto done;
1164 }
1165 }
1166
1167 /* We *must* do this.... don't ask... */
1168
1169 if (NT_STATUS_IS_OK(status)) {
1170 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1171 }
1172 }
1173
1174 status = dcerpc_samr_LookupNames(b, mem_ctx,
1175 &domain_pol,
1176 1,
1177 &lsa_acct_name,
1178 &user_rids,
1179 &name_types,
1180 &result);
1181 if (!NT_STATUS_IS_OK(status)) {
1182 goto done;
1183 }
1184 if (!NT_STATUS_IS_OK(result)) {
1185 status = result;
1186 goto done;
1187 }
1188 if (user_rids.count != 1) {
1189 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1190 goto done;
1191 }
1192 if (name_types.count != 1) {
1193 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1194 goto done;
1195 }
1196
1197 if (name_types.ids[0] != SID_NAME_USER) {
1198 DEBUG(0,("%s is not a user account (type=%d)\n",
1199 acct_name, name_types.ids[0]));
1200 status = NT_STATUS_INVALID_WORKSTATION;
1201 goto done;
1202 }
1203
1204 user_rid = user_rids.ids[0];
1205
1206 /* Open handle on user */
1207
1208 status = dcerpc_samr_OpenUser(b, mem_ctx,
1209 &domain_pol,
1210 SEC_FLAG_MAXIMUM_ALLOWED,
1211 user_rid,
1212 &user_pol,
1213 &result);
1214 if (!NT_STATUS_IS_OK(status)) {
1215 goto done;
1216 }
1217 if (!NT_STATUS_IS_OK(result)) {
1218 status = result;
1219 goto done;
1220 }
1221
1222 /* Fill in the additional account flags now */
1223
1224 acct_flags |= ACB_PWNOEXP;
1225
1226 /* Set account flags on machine account */
1227 ZERO_STRUCT(user_info.info16);
1228 user_info.info16.acct_flags = acct_flags;
1229
1230 status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1231 &user_pol,
1232 16,
1233 &user_info,
1234 &result);
1235 if (!NT_STATUS_IS_OK(status)) {
1236 dcerpc_samr_DeleteUser(b, mem_ctx,
1237 &user_pol,
1238 &result);
1239
1240 libnet_join_set_error_string(mem_ctx, r,
1241 "Failed to set account flags for machine account (%s)\n",
1242 nt_errstr(status));
1243 goto done;
1244 }
1245
1246 if (!NT_STATUS_IS_OK(result)) {
1247 status = result;
1248
1249 dcerpc_samr_DeleteUser(b, mem_ctx,
1250 &user_pol,
1251 &result);
1252
1253 libnet_join_set_error_string(mem_ctx, r,
1254 "Failed to set account flags for machine account (%s)\n",
1255 nt_errstr(status));
1256 goto done;
1257 }
1258
1259 /* Set password on machine account - first try level 26 */
1260
1261 /*
1262 * increase the timeout as password filter modules on the DC
1263 * might delay the operation for a significant amount of time
1264 */
1265 old_timeout = rpccli_set_timeout(pipe_hnd, 600000);
1266
1267 init_samr_CryptPasswordEx(r->in.machine_password,
1268 &session_key,
1269 &crypt_pwd_ex);
1270
1271 user_info.info26.password = crypt_pwd_ex;
1272 user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1273
1274 status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1275 &user_pol,
1276 26,
1277 &user_info,
1278 &result);
1279
1280 if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE)) {
1281
1282 /* retry with level 24 */
1283
1284 init_samr_CryptPassword(r->in.machine_password,
1285 &session_key,
1286 &crypt_pwd);
1287
1288 user_info.info24.password = crypt_pwd;
1289 user_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1290
1291 status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1292 &user_pol,
1293 24,
1294 &user_info,
1295 &result);
1296 }
1297
1298 old_timeout = rpccli_set_timeout(pipe_hnd, old_timeout);
1299
1300 if (!NT_STATUS_IS_OK(status)) {
1301
1302 dcerpc_samr_DeleteUser(b, mem_ctx,
1303 &user_pol,
1304 &result);
1305
1306 libnet_join_set_error_string(mem_ctx, r,
1307 "Failed to set password for machine account (%s)\n",
1308 nt_errstr(status));
1309 goto done;
1310 }
1311 if (!NT_STATUS_IS_OK(result)) {
1312 status = result;
1313
1314 dcerpc_samr_DeleteUser(b, mem_ctx,
1315 &user_pol,
1316 &result);
1317
1318 libnet_join_set_error_string(mem_ctx, r,
1319 "Failed to set password for machine account (%s)\n",
1320 nt_errstr(status));
1321 goto done;
1322 }
1323
1324 status = NT_STATUS_OK;
1325
1326 done:
1327 if (!pipe_hnd) {
1328 return status;
1329 }
1330
1331 data_blob_clear_free(&session_key);
1332
1333 if (is_valid_policy_hnd(&sam_pol)) {
1334 dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1335 }
1336 if (is_valid_policy_hnd(&domain_pol)) {
1337 dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1338 }
1339 if (is_valid_policy_hnd(&user_pol)) {
1340 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1341 }
1342 TALLOC_FREE(pipe_hnd);
1343
1344 return status;
1345 }
1346
1347 /****************************************************************
1348 ****************************************************************/
1349
1350 NTSTATUS libnet_join_ok(struct messaging_context *msg_ctx,
1351 const char *netbios_domain_name,
1352 const char *dc_name,
1353 const bool use_kerberos)
1354 {
1355 TALLOC_CTX *frame = talloc_stackframe();
1356 struct cli_state *cli = NULL;
1357 struct rpc_pipe_client *netlogon_pipe = NULL;
1358 struct netlogon_creds_cli_context *netlogon_creds = NULL;
1359 struct netlogon_creds_CredentialState *creds = NULL;
1360 uint32_t netlogon_flags = 0;
1361 enum netr_SchannelType sec_chan_type = 0;
1362 NTSTATUS status;
1363 char *machine_password = NULL;
1364 const char *machine_name = NULL;
1365 const char *machine_account = NULL;
1366 int flags = 0;
1367 struct samr_Password current_nt_hash;
1368 struct samr_Password *previous_nt_hash = NULL;
1369 bool ok;
1370
1371 if (!dc_name) {
1372 TALLOC_FREE(frame);
1373 return NT_STATUS_INVALID_PARAMETER;
1374 }
1375
1376 if (!secrets_init()) {
1377 TALLOC_FREE(frame);
1378 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1379 }
1380
1381 ok = get_trust_pw_clear(netbios_domain_name,
1382 &machine_password,
1383 &machine_name,
1384 &sec_chan_type);
1385 if (!ok) {
1386 TALLOC_FREE(frame);
1387 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1388 }
1389
1390 machine_account = talloc_asprintf(frame, "%s$", machine_name);
1391 if (machine_account == NULL) {
1392 SAFE_FREE(machine_password);
1393 SAFE_FREE(previous_nt_hash);
1394 TALLOC_FREE(frame);
1395 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1396 }
1397
1398 if (use_kerberos) {
1399 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
1400 }
1401
1402 status = cli_full_connection(&cli, NULL,
1403 dc_name,
1404 NULL, 0,
1405 "IPC$", "IPC",
1406 machine_account,
1407 netbios_domain_name,
1408 machine_password,
1409 flags,
1410 SMB_SIGNING_DEFAULT);
1411
1412 E_md4hash(machine_password, current_nt_hash.hash);
1413 SAFE_FREE(machine_password);
1414
1415 if (!NT_STATUS_IS_OK(status)) {
1416 status = cli_full_connection(&cli, NULL,
1417 dc_name,
1418 NULL, 0,
1419 "IPC$", "IPC",
1420 "",
1421 NULL,
1422 "",
1423 0,
1424 SMB_SIGNING_DEFAULT);
1425 }
1426
1427 if (!NT_STATUS_IS_OK(status)) {
1428 SAFE_FREE(previous_nt_hash);
1429 TALLOC_FREE(frame);
1430 return status;
1431 }
1432
1433 status = rpccli_create_netlogon_creds(dc_name,
1434 netbios_domain_name,
1435 machine_account,
1436 sec_chan_type,
1437 msg_ctx,
1438 frame,
1439 &netlogon_creds);
1440 if (!NT_STATUS_IS_OK(status)) {
1441 SAFE_FREE(previous_nt_hash);
1442 cli_shutdown(cli);
1443 TALLOC_FREE(frame);
1444 return status;
1445 }
1446
1447 status = rpccli_setup_netlogon_creds(cli, NCACN_NP,
1448 netlogon_creds,
1449 true, /* force_reauth */
1450 current_nt_hash,
1451 previous_nt_hash);
1452 SAFE_FREE(previous_nt_hash);
1453 if (!NT_STATUS_IS_OK(status)) {
1454 DEBUG(0,("connect_to_domain_password_server: "
1455 "unable to open the domain client session to "
1456 "machine %s. Flags[0x%08X] Error was : %s.\n",
1457 dc_name, (unsigned)netlogon_flags,
1458 nt_errstr(status)));
1459 cli_shutdown(cli);
1460 TALLOC_FREE(frame);
1461 return status;
1462 }
1463
1464 status = netlogon_creds_cli_get(netlogon_creds,
1465 talloc_tos(),
1466 &creds);
1467 if (!NT_STATUS_IS_OK(status)) {
1468 cli_shutdown(cli);
1469 TALLOC_FREE(frame);
1470 return status;
1471 }
1472 netlogon_flags = creds->negotiate_flags;
1473 TALLOC_FREE(creds);
1474
1475 if (!(netlogon_flags & NETLOGON_NEG_AUTHENTICATED_RPC)) {
1476 cli_shutdown(cli);
1477 TALLOC_FREE(frame);
1478 return NT_STATUS_OK;
1479 }
1480
1481 status = cli_rpc_pipe_open_schannel_with_key(
1482 cli, &ndr_table_netlogon, NCACN_NP,
1483 netbios_domain_name,
1484 netlogon_creds, &netlogon_pipe);
1485
1486 TALLOC_FREE(netlogon_pipe);
1487
1488 if (!NT_STATUS_IS_OK(status)) {
1489 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1490 "on netlogon pipe to server %s for domain %s. "
1491 "Error was %s\n",
1492 smbXcli_conn_remote_name(cli->conn),
1493 netbios_domain_name, nt_errstr(status)));
1494 cli_shutdown(cli);
1495 TALLOC_FREE(frame);
1496 return status;
1497 }
1498
1499 cli_shutdown(cli);
1500 TALLOC_FREE(frame);
1501 return NT_STATUS_OK;
1502 }
1503
1504 /****************************************************************
1505 ****************************************************************/
1506
1507 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1508 struct libnet_JoinCtx *r)
1509 {
1510 NTSTATUS status;
1511
1512 status = libnet_join_ok(r->in.msg_ctx,
1513 r->out.netbios_domain_name,
1514 r->in.dc_name,
1515 r->in.use_kerberos);
1516 if (!NT_STATUS_IS_OK(status)) {
1517 libnet_join_set_error_string(mem_ctx, r,
1518 "failed to verify domain membership after joining: %s",
1519 get_friendly_nt_error_msg(status));
1520 return WERR_SETUP_NOT_JOINED;
1521 }
1522
1523 return WERR_OK;
1524 }
1525
1526 /****************************************************************
1527 ****************************************************************/
1528
1529 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1530 struct libnet_UnjoinCtx *r)
1531 {
1532 if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1533 return false;
1534 }
1535
1536 if (!secrets_delete_domain_sid(lp_workgroup())) {
1537 return false;
1538 }
1539
1540 return true;
1541 }
1542
1543 /****************************************************************
1544 ****************************************************************/
1545
1546 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1547 struct libnet_UnjoinCtx *r)
1548 {
1549 struct cli_state *cli = NULL;
1550 struct rpc_pipe_client *pipe_hnd = NULL;
1551 struct policy_handle sam_pol, domain_pol, user_pol;
1552 NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
1553 char *acct_name;
1554 uint32_t user_rid;
1555 struct lsa_String lsa_acct_name;
1556 struct samr_Ids user_rids;
1557 struct samr_Ids name_types;
1558 union samr_UserInfo *info = NULL;
1559 struct dcerpc_binding_handle *b = NULL;
1560
1561 ZERO_STRUCT(sam_pol);
1562 ZERO_STRUCT(domain_pol);
1563 ZERO_STRUCT(user_pol);
1564
1565 status = libnet_join_connect_dc_ipc(r->in.dc_name,
1566 r->in.admin_account,
1567 r->in.admin_domain,
1568 r->in.admin_password,
1569 r->in.use_kerberos,
1570 &cli);
1571 if (!NT_STATUS_IS_OK(status)) {
1572 goto done;
1573 }
1574
1575 /* Open the domain */
1576
1577 status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr,
1578 &pipe_hnd);
1579 if (!NT_STATUS_IS_OK(status)) {
1580 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1581 nt_errstr(status)));
1582 goto done;
1583 }
1584
1585 b = pipe_hnd->binding_handle;
1586
1587 status = dcerpc_samr_Connect2(b, mem_ctx,
1588 pipe_hnd->desthost,
1589 SEC_FLAG_MAXIMUM_ALLOWED,
1590 &sam_pol,
1591 &result);
1592 if (!NT_STATUS_IS_OK(status)) {
1593 goto done;
1594 }
1595 if (!NT_STATUS_IS_OK(result)) {
1596 status = result;
1597 goto done;
1598 }
1599
1600 status = dcerpc_samr_OpenDomain(b, mem_ctx,
1601 &sam_pol,
1602 SEC_FLAG_MAXIMUM_ALLOWED,
1603 r->in.domain_sid,
1604 &domain_pol,
1605 &result);
1606 if (!NT_STATUS_IS_OK(status)) {
1607 goto done;
1608 }
1609 if (!NT_STATUS_IS_OK(result)) {
1610 status = result;
1611 goto done;
1612 }
1613
1614 /* Create domain user */
1615
1616 acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1617 if (!strlower_m(acct_name)) {
1618 status = NT_STATUS_INVALID_PARAMETER;
1619 goto done;
1620 }
1621
1622 init_lsa_String(&lsa_acct_name, acct_name);
1623
1624 status = dcerpc_samr_LookupNames(b, mem_ctx,
1625 &domain_pol,
1626 1,
1627 &lsa_acct_name,
1628 &user_rids,
1629 &name_types,
1630 &result);
1631
1632 if (!NT_STATUS_IS_OK(status)) {
1633 goto done;
1634 }
1635 if (!NT_STATUS_IS_OK(result)) {
1636 status = result;
1637 goto done;
1638 }
1639 if (user_rids.count != 1) {
1640 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1641 goto done;
1642 }
1643 if (name_types.count != 1) {
1644 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1645 goto done;
1646 }
1647
1648 if (name_types.ids[0] != SID_NAME_USER) {
1649 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1650 name_types.ids[0]));
1651 status = NT_STATUS_INVALID_WORKSTATION;
1652 goto done;
1653 }
1654
1655 user_rid = user_rids.ids[0];
1656
1657 /* Open handle on user */
1658
1659 status = dcerpc_samr_OpenUser(b, mem_ctx,
1660 &domain_pol,
1661 SEC_FLAG_MAXIMUM_ALLOWED,
1662 user_rid,
1663 &user_pol,
1664 &result);
1665 if (!NT_STATUS_IS_OK(status)) {
1666 goto done;
1667 }
1668 if (!NT_STATUS_IS_OK(result)) {
1669 status = result;
1670 goto done;
1671 }
1672
1673 /* Get user info */
1674
1675 status = dcerpc_samr_QueryUserInfo(b, mem_ctx,
1676 &user_pol,
1677 16,
1678 &info,
1679 &result);
1680 if (!NT_STATUS_IS_OK(status)) {
1681 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1682 goto done;
1683 }
1684 if (!NT_STATUS_IS_OK(result)) {
1685 status = result;
1686 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1687 goto done;
1688 }
1689
1690 /* now disable and setuser info */
1691
1692 info->info16.acct_flags |= ACB_DISABLED;
1693
1694 status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1695 &user_pol,
1696 16,
1697 info,
1698 &result);
1699 if (!NT_STATUS_IS_OK(status)) {
1700 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1701 goto done;
1702 }
1703 if (!NT_STATUS_IS_OK(result)) {
1704 status = result;
1705 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1706 goto done;
1707 }
1708 status = result;
1709 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1710
1711 done:
1712 if (pipe_hnd && b) {
1713 if (is_valid_policy_hnd(&domain_pol)) {
1714 dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1715 }
1716 if (is_valid_policy_hnd(&sam_pol)) {
1717 dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1718 }
1719 TALLOC_FREE(pipe_hnd);
1720 }
1721
1722 if (cli) {
1723 cli_shutdown(cli);
1724 }
1725
1726 return status;
1727 }
1728
1729 /****************************************************************
1730 ****************************************************************/
1731
1732 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1733 {
1734 WERROR werr = WERR_OK;
1735 sbcErr err;
1736 struct smbconf_ctx *ctx;
1737
1738 err = smbconf_init_reg(r, &ctx, NULL);
1739 if (!SBC_ERROR_IS_OK(err)) {
1740 werr = WERR_NO_SUCH_SERVICE;
1741 goto done;
1742 }
1743
1744 if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1745
1746 err = smbconf_set_global_parameter(ctx, "security", "user");
1747 if (!SBC_ERROR_IS_OK(err)) {
1748 werr = WERR_NO_SUCH_SERVICE;
1749 goto done;
1750 }
1751
1752 err = smbconf_set_global_parameter(ctx, "workgroup",
1753 r->in.domain_name);
1754 if (!SBC_ERROR_IS_OK(err)) {
1755 werr = WERR_NO_SUCH_SERVICE;
1756 goto done;
1757 }
1758
1759 smbconf_delete_global_parameter(ctx, "realm");
1760 goto done;
1761 }
1762
1763 err = smbconf_set_global_parameter(ctx, "security", "domain");
1764 if (!SBC_ERROR_IS_OK(err)) {
1765 werr = WERR_NO_SUCH_SERVICE;
1766 goto done;
1767 }
1768
1769 err = smbconf_set_global_parameter(ctx, "workgroup",
1770 r->out.netbios_domain_name);
1771 if (!SBC_ERROR_IS_OK(err)) {
1772 werr = WERR_NO_SUCH_SERVICE;
1773 goto done;
1774 }
1775
1776 if (r->out.domain_is_ad) {
1777 err = smbconf_set_global_parameter(ctx, "security", "ads");
1778 if (!SBC_ERROR_IS_OK(err)) {
1779 werr = WERR_NO_SUCH_SERVICE;
1780 goto done;
1781 }
1782
1783 err = smbconf_set_global_parameter(ctx, "realm",
1784 r->out.dns_domain_name);
1785 if (!SBC_ERROR_IS_OK(err)) {
1786 werr = WERR_NO_SUCH_SERVICE;
1787 goto done;
1788 }
1789 }
1790
1791 done:
1792 smbconf_shutdown(ctx);
1793 return werr;
1794 }
1795
1796 /****************************************************************
1797 ****************************************************************/
1798
1799 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1800 {
1801 WERROR werr = WERR_OK;
1802 sbcErr err;
1803 struct smbconf_ctx *ctx;
1804
1805 err = smbconf_init_reg(r, &ctx, NULL);
1806 if (!SBC_ERROR_IS_OK(err)) {
1807 werr = WERR_NO_SUCH_SERVICE;
1808 goto done;
1809 }
1810
1811 if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1812
1813 err = smbconf_set_global_parameter(ctx, "security", "user");
1814 if (!SBC_ERROR_IS_OK(err)) {
1815 werr = WERR_NO_SUCH_SERVICE;
1816 goto done;
1817 }
1818
1819 err = smbconf_delete_global_parameter(ctx, "workgroup");
1820 if (!SBC_ERROR_IS_OK(err)) {
1821 werr = WERR_NO_SUCH_SERVICE;
1822 goto done;
1823 }
1824
1825 smbconf_delete_global_parameter(ctx, "realm");
1826 }
1827
1828 done:
1829 smbconf_shutdown(ctx);
1830 return werr;
1831 }
1832
1833 /****************************************************************
1834 ****************************************************************/
1835
1836 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1837 {
1838 WERROR werr;
1839
1840 if (!W_ERROR_IS_OK(r->out.result)) {
1841 return r->out.result;
1842 }
1843
1844 if (!r->in.modify_config) {
1845 return WERR_OK;
1846 }
1847
1848 werr = do_join_modify_vals_config(r);
1849 if (!W_ERROR_IS_OK(werr)) {
1850 return werr;
1851 }
1852
1853 lp_load_global(get_dyn_CONFIGFILE());
1854
1855 r->out.modified_config = true;
1856 r->out.result = werr;
1857
1858 return werr;
1859 }
1860
1861 /****************************************************************
1862 ****************************************************************/
1863
1864 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1865 {
1866 WERROR werr;
1867
1868 if (!W_ERROR_IS_OK(r->out.result)) {
1869 return r->out.result;
1870 }
1871
1872 if (!r->in.modify_config) {
1873 return WERR_OK;
1874 }
1875
1876 werr = do_unjoin_modify_vals_config(r);
1877 if (!W_ERROR_IS_OK(werr)) {
1878 return werr;
1879 }
1880
1881 lp_load_global(get_dyn_CONFIGFILE());
1882
1883 r->out.modified_config = true;
1884 r->out.result = werr;
1885
1886 return werr;
1887 }
1888
1889 /****************************************************************
1890 ****************************************************************/
1891
1892 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1893 const char *domain_str,
1894 const char **domain_p,
1895 const char **dc_p)
1896 {
1897 char *domain = NULL;
1898 char *dc = NULL;
1899 const char *p = NULL;
1900
1901 if (!domain_str || !domain_p || !dc_p) {
1902 return false;
1903 }
1904
1905 p = strchr_m(domain_str, '\\');
1906
1907 if (p != NULL) {
1908 domain = talloc_strndup(mem_ctx, domain_str,
1909 PTR_DIFF(p, domain_str));
1910 dc = talloc_strdup(mem_ctx, p+1);
1911 if (!dc) {
1912 return false;
1913 }
1914 } else {
1915 domain = talloc_strdup(mem_ctx, domain_str);
1916 dc = NULL;
1917 }
1918 if (!domain) {
1919 return false;
1920 }
1921
1922 *domain_p = domain;
1923
1924 if (!*dc_p && dc) {
1925 *dc_p = dc;
1926 }
1927
1928 return true;
1929 }
1930
1931 /****************************************************************
1932 ****************************************************************/
1933
1934 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1935 struct libnet_JoinCtx *r)
1936 {
1937 if (!r->in.domain_name) {
1938 libnet_join_set_error_string(mem_ctx, r,
1939 "No domain name defined");
1940 return WERR_INVALID_PARAM;
1941 }
1942
1943 if (strlen(r->in.machine_name) > 15) {
1944 libnet_join_set_error_string(mem_ctx, r,
1945 "Our netbios name can be at most 15 chars long, "
1946 "\"%s\" is %u chars long\n",
1947 r->in.machine_name,
1948 (unsigned int)strlen(r->in.machine_name));
1949 return WERR_INVALID_PARAM;
1950 }
1951
1952 if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1953 &r->in.domain_name,
1954 &r->in.dc_name)) {
1955 libnet_join_set_error_string(mem_ctx, r,
1956 "Failed to parse domain name");
1957 return WERR_INVALID_PARAM;
1958 }
1959
1960 if (!r->in.admin_domain) {
1961 char *admin_domain = NULL;
1962 char *admin_account = NULL;
1963 split_domain_user(mem_ctx,
1964 r->in.admin_account,
1965 &admin_domain,
1966 &admin_account);
1967 r->in.admin_domain = admin_domain;
1968 r->in.admin_account = admin_account;
1969 }
1970
1971 if (!secrets_init()) {
1972 libnet_join_set_error_string(mem_ctx, r,
1973 "Unable to open secrets database");
1974 return WERR_CAN_NOT_COMPLETE;
1975 }
1976
1977 return WERR_OK;
1978 }
1979
1980 /****************************************************************
1981 ****************************************************************/
1982
1983 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1984 {
1985 NTSTATUS status;
1986
1987 /* Try adding dom admins to builtin\admins. Only log failures. */
1988 status = create_builtin_administrators(domain_sid);
1989 if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1990 DEBUG(10,("Unable to auto-add domain administrators to "
1991 "BUILTIN\\Administrators during join because "
1992 "winbindd must be running.\n"));
1993 } else if (!NT_STATUS_IS_OK(status)) {
1994 DEBUG(5, ("Failed to auto-add domain administrators to "
1995 "BUILTIN\\Administrators during join: %s\n",
1996 nt_errstr(status)));
1997 }
1998
1999 /* Try adding dom users to builtin\users. Only log failures. */
2000 status = create_builtin_users(domain_sid);
2001 if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
2002 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
2003 "during join because winbindd must be running.\n"));
2004 } else if (!NT_STATUS_IS_OK(status)) {
2005 DEBUG(5, ("Failed to auto-add domain administrators to "
2006 "BUILTIN\\Administrators during join: %s\n",
2007 nt_errstr(status)));
2008 }
2009 }
2010
2011 /****************************************************************
2012 ****************************************************************/
2013
2014 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
2015 struct libnet_JoinCtx *r)
2016 {
2017 WERROR werr;
2018
2019 if (!W_ERROR_IS_OK(r->out.result)) {
2020 return r->out.result;
2021 }
2022
2023 werr = do_JoinConfig(r);
2024 if (!W_ERROR_IS_OK(werr)) {
2025 return werr;
2026 }
2027
2028 if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
2029 return WERR_OK;
2030 }
2031
2032 saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
2033 if (r->out.dns_domain_name) {
2034 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
2035 }
2036
2037 #ifdef HAVE_ADS
2038 if (r->out.domain_is_ad &&
2039 !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
2040 ADS_STATUS ads_status;
2041
2042 ads_status = libnet_join_post_processing_ads(mem_ctx, r);
2043 if (!ADS_ERR_OK(ads_status)) {
2044 return WERR_GENERAL_FAILURE;
2045 }
2046 }
2047 #endif /* HAVE_ADS */
2048
2049 libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
2050
2051 return WERR_OK;
2052 }
2053
2054 /****************************************************************
2055 ****************************************************************/
2056
2057 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
2058 {
2059 if (r->in.ads) {
2060 ads_destroy(&r->in.ads);
2061 }
2062
2063 return 0;
2064 }
2065
2066 /****************************************************************
2067 ****************************************************************/
2068
2069 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
2070 {
2071 if (r->in.ads) {
2072 ads_destroy(&r->in.ads);
2073 }
2074
2075 return 0;
2076 }
2077
2078 /****************************************************************
2079 ****************************************************************/
2080
2081 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
2082 struct libnet_JoinCtx **r)
2083 {
2084 struct libnet_JoinCtx *ctx;
2085
2086 ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
2087 if (!ctx) {
2088 return WERR_NOMEM;
2089 }
2090
2091 talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
2092
2093 ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
2094 W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
2095
2096 ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
2097
2098 *r = ctx;
2099
2100 return WERR_OK;
2101 }
2102
2103 /****************************************************************
2104 ****************************************************************/
2105
2106 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
2107 struct libnet_UnjoinCtx **r)
2108 {
2109 struct libnet_UnjoinCtx *ctx;
2110
2111 ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
2112 if (!ctx) {
2113 return WERR_NOMEM;
2114 }
2115
2116 talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
2117
2118 ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
2119 W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
2120
2121 *r = ctx;
2122
2123 return WERR_OK;
2124 }
2125
2126 /****************************************************************
2127 ****************************************************************/
2128
2129 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
2130 struct libnet_JoinCtx *r)
2131 {
2132 bool valid_security = false;
2133 bool valid_workgroup = false;
2134 bool valid_realm = false;
2135
2136 /* check if configuration is already set correctly */
2137
2138 valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
2139
2140 switch (r->out.domain_is_ad) {
2141 case false:
2142 valid_security = (lp_security() == SEC_DOMAIN)
2143 || (lp_server_role() == ROLE_DOMAIN_PDC)
2144 || (lp_server_role() == ROLE_DOMAIN_BDC);
2145 if (valid_workgroup && valid_security) {
2146 /* nothing to be done */
2147 return WERR_OK;
2148 }
2149 break;
2150 case true:
2151 valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
2152 switch (lp_security()) {
2153 case SEC_DOMAIN:
2154 case SEC_ADS:
2155 valid_security = true;
2156 }
2157
2158 if (valid_workgroup && valid_realm && valid_security) {
2159 /* nothing to be done */
2160 return WERR_OK;
2161 }
2162 break;
2163 }
2164
2165 /* check if we are supposed to manipulate configuration */
2166
2167 if (!r->in.modify_config) {
2168
2169 char *wrong_conf = talloc_strdup(mem_ctx, "");
2170
2171 if (!valid_workgroup) {
2172 wrong_conf = talloc_asprintf_append(wrong_conf,
2173 "\"workgroup\" set to '%s', should be '%s'",
2174 lp_workgroup(), r->out.netbios_domain_name);
2175 W_ERROR_HAVE_NO_MEMORY(wrong_conf);
2176 }
2177
2178 if (!valid_realm) {
2179 wrong_conf = talloc_asprintf_append(wrong_conf,
2180 "\"realm\" set to '%s', should be '%s'",
2181 lp_realm(), r->out.dns_domain_name);
2182 W_ERROR_HAVE_NO_MEMORY(wrong_conf);
2183 }
2184
2185 if (!valid_security) {
2186 const char *sec = NULL;
2187 switch (lp_security()) {
2188 case SEC_USER: sec = "user"; break;
2189 case SEC_DOMAIN: sec = "domain"; break;
2190 case SEC_ADS: sec = "ads"; break;
2191 }
2192 wrong_conf = talloc_asprintf_append(wrong_conf,
2193 "\"security\" set to '%s', should be %s",
2194 sec, r->out.domain_is_ad ?
2195 "either 'domain' or 'ads'" : "'domain'");
2196 W_ERROR_HAVE_NO_MEMORY(wrong_conf);
2197 }
2198
2199 libnet_join_set_error_string(mem_ctx, r,
2200 "Invalid configuration (%s) and configuration modification "
2201 "was not requested", wrong_conf);
2202 return WERR_CAN_NOT_COMPLETE;
2203 }
2204
2205 /* check if we are able to manipulate configuration */
2206
2207 if (!lp_config_backend_is_registry()) {
2208 libnet_join_set_error_string(mem_ctx, r,
2209 "Configuration manipulation requested but not "
2210 "supported by backend");
2211 return WERR_NOT_SUPPORTED;
2212 }
2213
2214 return WERR_OK;
2215 }
2216
2217 /****************************************************************
2218 ****************************************************************/
2219
2220 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
2221 struct libnet_JoinCtx *r)
2222 {
2223 NTSTATUS status;
2224 WERROR werr;
2225 struct cli_state *cli = NULL;
2226 #ifdef HAVE_ADS
2227 ADS_STATUS ads_status;
2228 #endif /* HAVE_ADS */
2229
2230 if (!r->in.dc_name) {
2231 struct netr_DsRGetDCNameInfo *info;
2232 const char *dc;
2233 status = dsgetdcname(mem_ctx,
2234 r->in.msg_ctx,
2235 r->in.domain_name,
2236 NULL,
2237 NULL,
2238 DS_FORCE_REDISCOVERY |
2239 DS_DIRECTORY_SERVICE_REQUIRED |
2240 DS_WRITABLE_REQUIRED |
2241 DS_RETURN_DNS_NAME,
2242 &info);
2243 if (!NT_STATUS_IS_OK(status)) {
2244 libnet_join_set_error_string(mem_ctx, r,
2245 "failed to find DC for domain %s",
2246 r->in.domain_name,
2247 get_friendly_nt_error_msg(status));
2248 return WERR_DCNOTFOUND;
2249 }
2250
2251 dc = strip_hostname(info->dc_unc);
2252 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2253 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2254 }
2255
2256 status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
2257 if (!NT_STATUS_IS_OK(status)) {
2258 libnet_join_set_error_string(mem_ctx, r,
2259 "failed to lookup DC info for domain '%s' over rpc: %s",
2260 r->in.domain_name, get_friendly_nt_error_msg(status));
2261 return ntstatus_to_werror(status);
2262 }
2263
2264 werr = libnet_join_check_config(mem_ctx, r);
2265 if (!W_ERROR_IS_OK(werr)) {
2266 goto done;
2267 }
2268
2269 #ifdef HAVE_ADS
2270
2271 create_local_private_krb5_conf_for_domain(
2272 r->out.dns_domain_name, r->out.netbios_domain_name,
2273 NULL, smbXcli_conn_remote_sockaddr(cli->conn));
2274
2275 if (r->out.domain_is_ad && r->in.account_ou &&
2276 !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
2277
2278 ads_status = libnet_join_connect_ads(mem_ctx, r);
2279 if (!ADS_ERR_OK(ads_status)) {
2280 return WERR_DEFAULT_JOIN_REQUIRED;
2281 }
2282
2283 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
2284 if (!ADS_ERR_OK(ads_status)) {
2285 libnet_join_set_error_string(mem_ctx, r,
2286 "failed to precreate account in ou %s: %s",
2287 r->in.account_ou,
2288 ads_errstr(ads_status));
2289 return WERR_DEFAULT_JOIN_REQUIRED;
2290 }
2291
2292 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
2293 }
2294 #endif /* HAVE_ADS */
2295
2296 if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
2297 (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
2298 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
2299 } else {
2300 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
2301 }
2302 if (!NT_STATUS_IS_OK(status)) {
2303 libnet_join_set_error_string(mem_ctx, r,
2304 "failed to join domain '%s' over rpc: %s",
2305 r->in.domain_name, get_friendly_nt_error_msg(status));
2306 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
2307 return WERR_SETUP_ALREADY_JOINED;
2308 }
2309 werr = ntstatus_to_werror(status);
2310 goto done;
2311 }
2312
2313 if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
2314 werr = WERR_SETUP_NOT_JOINED;
2315 goto done;
2316 }
2317
2318 werr = WERR_OK;
2319
2320 done:
2321 if (cli) {
2322 cli_shutdown(cli);
2323 }
2324
2325 return werr;
2326 }
2327
2328 /****************************************************************
2329 ****************************************************************/
2330
2331 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
2332 struct libnet_JoinCtx *r)
2333 {
2334 WERROR werr;
2335 struct libnet_UnjoinCtx *u = NULL;
2336
2337 werr = libnet_init_UnjoinCtx(mem_ctx, &u);
2338 if (!W_ERROR_IS_OK(werr)) {
2339 return werr;
2340 }
2341
2342 u->in.debug = r->in.debug;
2343 u->in.dc_name = r->in.dc_name;
2344 u->in.domain_name = r->in.domain_name;
2345 u->in.admin_account = r->in.admin_account;
2346 u->in.admin_password = r->in.admin_password;
2347 u->in.modify_config = r->in.modify_config;
2348 u->in.use_kerberos = r->in.use_kerberos;
2349 u->in.unjoin_flags = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
2350 WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
2351
2352 werr = libnet_Unjoin(mem_ctx, u);
2353 TALLOC_FREE(u);
2354
2355 return werr;
2356 }
2357
2358 /****************************************************************
2359 ****************************************************************/
2360
2361 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
2362 struct libnet_JoinCtx *r)
2363 {
2364 WERROR werr;
2365
2366 if (r->in.debug) {
2367 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
2368 }
2369
2370 ZERO_STRUCT(r->out);
2371
2372 werr = libnet_join_pre_processing(mem_ctx, r);
2373 if (!W_ERROR_IS_OK(werr)) {
2374 goto done;
2375 }
2376
2377 if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2378 werr = libnet_DomainJoin(mem_ctx, r);
2379 if (!W_ERROR_IS_OK(werr)) {
2380 goto done;
2381 }
2382 }
2383
2384 werr = libnet_join_post_processing(mem_ctx, r);
2385 if (!W_ERROR_IS_OK(werr)) {
2386 goto done;
2387 }
2388
2389 if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2390 werr = libnet_join_post_verify(mem_ctx, r);
2391 if (!W_ERROR_IS_OK(werr)) {
2392 libnet_join_rollback(mem_ctx, r);
2393 }
2394 }
2395
2396 done:
2397 r->out.result = werr;
2398
2399 if (r->in.debug) {
2400 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
2401 }
2402 return werr;
2403 }
2404
2405 /****************************************************************
2406 ****************************************************************/
2407
2408 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
2409 struct libnet_UnjoinCtx *r)
2410 {
2411 NTSTATUS status;
2412
2413 if (!r->in.domain_sid) {
2414 struct dom_sid sid;
2415 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2416 libnet_unjoin_set_error_string(mem_ctx, r,
2417 "Unable to fetch domain sid: are we joined?");
2418 return WERR_SETUP_NOT_JOINED;
2419 }
2420 r->in.domain_sid = dom_sid_dup(mem_ctx, &sid);
2421 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2422 }
2423
2424 if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2425 !r->in.delete_machine_account) {
2426 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2427 return WERR_OK;
2428 }
2429
2430 if (!r->in.dc_name) {
2431 struct netr_DsRGetDCNameInfo *info;
2432 const char *dc;
2433 status = dsgetdcname(mem_ctx,
2434 r->in.msg_ctx,
2435 r->in.domain_name,
2436 NULL,
2437 NULL,
2438 DS_DIRECTORY_SERVICE_REQUIRED |
2439 DS_WRITABLE_REQUIRED |
2440 DS_RETURN_DNS_NAME,
2441 &info);
2442 if (!NT_STATUS_IS_OK(status)) {
2443 libnet_unjoin_set_error_string(mem_ctx, r,
2444 "failed to find DC for domain %s",
2445 r->in.domain_name,
2446 get_friendly_nt_error_msg(status));
2447 return WERR_DCNOTFOUND;
2448 }
2449
2450 dc = strip_hostname(info->dc_unc);
2451 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2452 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2453 }
2454
2455 #ifdef HAVE_ADS
2456 /* for net ads leave, try to delete the account. If it works,
2457 no sense in disabling. If it fails, we can still try to
2458 disable it. jmcd */
2459
2460 if (r->in.delete_machine_account) {
2461 ADS_STATUS ads_status;
2462 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2463 if (ADS_ERR_OK(ads_status)) {
2464 /* dirty hack */
2465 r->out.dns_domain_name =
2466 talloc_strdup(mem_ctx,
2467 r->in.ads->server.realm);
2468 ads_status =
2469 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2470 }
2471 if (!ADS_ERR_OK(ads_status)) {
2472 libnet_unjoin_set_error_string(mem_ctx, r,
2473 "failed to remove machine account from AD: %s",
2474 ads_errstr(ads_status));
2475 } else {
2476 r->out.deleted_machine_account = true;
2477 W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2478 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2479 return WERR_OK;
2480 }
2481 }
2482 #endif /* HAVE_ADS */
2483
2484 /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2485 "disable". */
2486 if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2487 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2488 if (!NT_STATUS_IS_OK(status)) {
2489 libnet_unjoin_set_error_string(mem_ctx, r,
2490 "failed to disable machine account via rpc: %s",
2491 get_friendly_nt_error_msg(status));
2492 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2493 return WERR_SETUP_NOT_JOINED;
2494 }
2495 return ntstatus_to_werror(status);
2496 }
2497
2498 r->out.disabled_machine_account = true;
2499 }
2500
2501 /* If disable succeeded or was not requested at all, we
2502 should be getting rid of our end of things */
2503
2504 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2505
2506 return WERR_OK;
2507 }
2508
2509 /****************************************************************
2510 ****************************************************************/
2511
2512 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2513 struct libnet_UnjoinCtx *r)
2514 {
2515 if (!r->in.domain_name) {
2516 libnet_unjoin_set_error_string(mem_ctx, r,
2517 "No domain name defined");
2518 return WERR_INVALID_PARAM;
2519 }
2520
2521 if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2522 &r->in.domain_name,
2523 &r->in.dc_name)) {
2524 libnet_unjoin_set_error_string(mem_ctx, r,
2525 "Failed to parse domain name");
2526 return WERR_INVALID_PARAM;
2527 }
2528
2529 if (IS_DC) {
2530 return WERR_SETUP_DOMAIN_CONTROLLER;
2531 }
2532
2533 if (!r->in.admin_domain) {
2534 char *admin_domain = NULL;
2535 char *admin_account = NULL;
2536 split_domain_user(mem_ctx,
2537 r->in.admin_account,
2538 &admin_domain,
2539 &admin_account);
2540 r->in.admin_domain = admin_domain;
2541 r->in.admin_account = admin_account;
2542 }
2543
2544 if (!secrets_init()) {
2545 libnet_unjoin_set_error_string(mem_ctx, r,
2546 "Unable to open secrets database");
2547 return WERR_CAN_NOT_COMPLETE;
2548 }
2549
2550 return WERR_OK;
2551 }
2552
2553 /****************************************************************
2554 ****************************************************************/
2555
2556 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2557 struct libnet_UnjoinCtx *r)
2558 {
2559 saf_delete(r->out.netbios_domain_name);
2560 saf_delete(r->out.dns_domain_name);
2561
2562 return libnet_unjoin_config(r);
2563 }
2564
2565 /****************************************************************
2566 ****************************************************************/
2567
2568 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2569 struct libnet_UnjoinCtx *r)
2570 {
2571 WERROR werr;
2572
2573 if (r->in.debug) {
2574 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2575 }
2576
2577 werr = libnet_unjoin_pre_processing(mem_ctx, r);
2578 if (!W_ERROR_IS_OK(werr)) {
2579 goto done;
2580 }
2581
2582 if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2583 werr = libnet_DomainUnjoin(mem_ctx, r);
2584 if (!W_ERROR_IS_OK(werr)) {
2585 libnet_unjoin_config(r);
2586 goto done;
2587 }
2588 }
2589
2590 werr = libnet_unjoin_post_processing(mem_ctx, r);
2591 if (!W_ERROR_IS_OK(werr)) {
2592 goto done;
2593 }
2594
2595 done:
2596 r->out.result = werr;
2597
2598 if (r->in.debug) {
2599 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2600 }
2601
2602 return werr;
2603 }
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