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CVE-2013-4408:s3:Ensure LookupNames replies arrays are range checked.
[Samba.git] / source3 / libnet / libnet_join.c
blobd665d729a8b08ee9f54c0921b98a5c4953f961b0
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
42 /****************************************************************
43 ****************************************************************/
44
45 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
46 do { \
47 char *str = NULL; \
48 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
49 DEBUG(1,("libnet_Join:\n%s", str)); \
50 TALLOC_FREE(str); \
51 } while (0)
52
53 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
54 LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
55 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
56 LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
57
58 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
59 do { \
60 char *str = NULL; \
61 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
62 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
63 TALLOC_FREE(str); \
64 } while (0)
65
66 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
67 LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
68 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
69 LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
70
71 /****************************************************************
72 ****************************************************************/
73
74 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
75 struct libnet_JoinCtx *r,
76 const char *format, ...)
77 {
78 va_list args;
79
80 if (r->out.error_string) {
81 return;
82 }
83
84 va_start(args, format);
85 r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
86 va_end(args);
87 }
88
89 /****************************************************************
90 ****************************************************************/
91
92 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
93 struct libnet_UnjoinCtx *r,
94 const char *format, ...)
95 {
96 va_list args;
97
98 if (r->out.error_string) {
99 return;
100 }
101
102 va_start(args, format);
103 r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
104 va_end(args);
105 }
106
107 #ifdef HAVE_ADS
108
109 /****************************************************************
110 ****************************************************************/
111
112 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
113 const char *netbios_domain_name,
114 const char *dc_name,
115 const char *user_name,
116 const char *password,
117 ADS_STRUCT **ads)
118 {
119 ADS_STATUS status;
120 ADS_STRUCT *my_ads = NULL;
121 char *cp;
122
123 my_ads = ads_init(dns_domain_name,
124 netbios_domain_name,
125 dc_name);
126 if (!my_ads) {
127 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
128 }
129
130 if (user_name) {
131 SAFE_FREE(my_ads->auth.user_name);
132 my_ads->auth.user_name = SMB_STRDUP(user_name);
133 if ((cp = strchr_m(my_ads->auth.user_name, '@'))!=0) {
134 *cp++ = '\0';
135 SAFE_FREE(my_ads->auth.realm);
136 my_ads->auth.realm = smb_xstrdup(cp);
137 strupper_m(my_ads->auth.realm);
138 }
139 }
140
141 if (password) {
142 SAFE_FREE(my_ads->auth.password);
143 my_ads->auth.password = SMB_STRDUP(password);
144 }
145
146 status = ads_connect_user_creds(my_ads);
147 if (!ADS_ERR_OK(status)) {
148 ads_destroy(&my_ads);
149 return status;
150 }
151
152 *ads = my_ads;
153 return ADS_SUCCESS;
154 }
155
156 /****************************************************************
157 ****************************************************************/
158
159 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
160 struct libnet_JoinCtx *r)
161 {
162 ADS_STATUS status;
163
164 status = libnet_connect_ads(r->out.dns_domain_name,
165 r->out.netbios_domain_name,
166 r->in.dc_name,
167 r->in.admin_account,
168 r->in.admin_password,
169 &r->in.ads);
170 if (!ADS_ERR_OK(status)) {
171 libnet_join_set_error_string(mem_ctx, r,
172 "failed to connect to AD: %s",
173 ads_errstr(status));
174 return status;
175 }
176
177 if (!r->out.netbios_domain_name) {
178 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
179 r->in.ads->server.workgroup);
180 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
181 }
182
183 if (!r->out.dns_domain_name) {
184 r->out.dns_domain_name = talloc_strdup(mem_ctx,
185 r->in.ads->config.realm);
186 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
187 }
188
189 r->out.domain_is_ad = true;
190
191 return ADS_SUCCESS;
192 }
193
194 /****************************************************************
195 ****************************************************************/
196
197 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
198 struct libnet_UnjoinCtx *r)
199 {
200 ADS_STATUS status;
201
202 status = libnet_connect_ads(r->in.domain_name,
203 r->in.domain_name,
204 r->in.dc_name,
205 r->in.admin_account,
206 r->in.admin_password,
207 &r->in.ads);
208 if (!ADS_ERR_OK(status)) {
209 libnet_unjoin_set_error_string(mem_ctx, r,
210 "failed to connect to AD: %s",
211 ads_errstr(status));
212 }
213
214 return status;
215 }
216
217 /****************************************************************
218 join a domain using ADS (LDAP mods)
219 ****************************************************************/
220
221 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
222 struct libnet_JoinCtx *r)
223 {
224 ADS_STATUS status;
225 LDAPMessage *res = NULL;
226 const char *attrs[] = { "dn", NULL };
227 bool moved = false;
228
229 status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
230 if (!ADS_ERR_OK(status)) {
231 return status;
232 }
233
234 status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
235 if (!ADS_ERR_OK(status)) {
236 return status;
237 }
238
239 if (ads_count_replies(r->in.ads, res) != 1) {
240 ads_msgfree(r->in.ads, res);
241 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
242 }
243
244 ads_msgfree(r->in.ads, res);
245
246 /* Attempt to create the machine account and bail if this fails.
247 Assume that the admin wants exactly what they requested */
248
249 status = ads_create_machine_acct(r->in.ads,
250 r->in.machine_name,
251 r->in.account_ou);
252
253 if (ADS_ERR_OK(status)) {
254 DEBUG(1,("machine account creation created\n"));
255 return status;
256 } else if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
257 (status.err.rc == LDAP_ALREADY_EXISTS)) {
258 status = ADS_SUCCESS;
259 }
260
261 if (!ADS_ERR_OK(status)) {
262 DEBUG(1,("machine account creation failed\n"));
263 return status;
264 }
265
266 status = ads_move_machine_acct(r->in.ads,
267 r->in.machine_name,
268 r->in.account_ou,
269 &moved);
270 if (!ADS_ERR_OK(status)) {
271 DEBUG(1,("failure to locate/move pre-existing "
272 "machine account\n"));
273 return status;
274 }
275
276 DEBUG(1,("The machine account %s the specified OU.\n",
277 moved ? "was moved into" : "already exists in"));
278
279 return status;
280 }
281
282 /****************************************************************
283 ****************************************************************/
284
285 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
286 struct libnet_UnjoinCtx *r)
287 {
288 ADS_STATUS status;
289
290 if (!r->in.ads) {
291 status = libnet_unjoin_connect_ads(mem_ctx, r);
292 if (!ADS_ERR_OK(status)) {
293 libnet_unjoin_set_error_string(mem_ctx, r,
294 "failed to connect to AD: %s",
295 ads_errstr(status));
296 return status;
297 }
298 }
299
300 status = ads_leave_realm(r->in.ads, r->in.machine_name);
301 if (!ADS_ERR_OK(status)) {
302 libnet_unjoin_set_error_string(mem_ctx, r,
303 "failed to leave realm: %s",
304 ads_errstr(status));
305 return status;
306 }
307
308 return ADS_SUCCESS;
309 }
310
311 /****************************************************************
312 ****************************************************************/
313
314 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
315 struct libnet_JoinCtx *r)
316 {
317 ADS_STATUS status;
318 LDAPMessage *res = NULL;
319 char *dn = NULL;
320
321 if (!r->in.machine_name) {
322 return ADS_ERROR(LDAP_NO_MEMORY);
323 }
324
325 status = ads_find_machine_acct(r->in.ads,
326 &res,
327 r->in.machine_name);
328 if (!ADS_ERR_OK(status)) {
329 return status;
330 }
331
332 if (ads_count_replies(r->in.ads, res) != 1) {
333 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
334 goto done;
335 }
336
337 dn = ads_get_dn(r->in.ads, mem_ctx, res);
338 if (!dn) {
339 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
340 goto done;
341 }
342
343 r->out.dn = talloc_strdup(mem_ctx, dn);
344 if (!r->out.dn) {
345 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
346 goto done;
347 }
348
349 done:
350 ads_msgfree(r->in.ads, res);
351 TALLOC_FREE(dn);
352
353 return status;
354 }
355
356 /****************************************************************
357 Set a machines dNSHostName and servicePrincipalName attributes
358 ****************************************************************/
359
360 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
361 struct libnet_JoinCtx *r)
362 {
363 ADS_STATUS status;
364 ADS_MODLIST mods;
365 fstring my_fqdn;
366 const char *spn_array[3] = {NULL, NULL, NULL};
367 char *spn = NULL;
368
369 /* Find our DN */
370
371 status = libnet_join_find_machine_acct(mem_ctx, r);
372 if (!ADS_ERR_OK(status)) {
373 return status;
374 }
375
376 /* Windows only creates HOST/shortname & HOST/fqdn. */
377
378 spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
379 if (!spn) {
380 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
381 }
382 strupper_m(spn);
383 spn_array[0] = spn;
384
385 if (!name_to_fqdn(my_fqdn, r->in.machine_name)
386 || (strchr(my_fqdn, '.') == NULL)) {
387 fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
388 r->out.dns_domain_name);
389 }
390
391 strlower_m(my_fqdn);
392
393 if (!strequal(my_fqdn, r->in.machine_name)) {
394 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
395 if (!spn) {
396 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
397 }
398 spn_array[1] = spn;
399 }
400
401 mods = ads_init_mods(mem_ctx);
402 if (!mods) {
403 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
404 }
405
406 /* fields of primary importance */
407
408 status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
409 if (!ADS_ERR_OK(status)) {
410 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
411 }
412
413 status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
414 spn_array);
415 if (!ADS_ERR_OK(status)) {
416 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
417 }
418
419 return ads_gen_mod(r->in.ads, r->out.dn, mods);
420 }
421
422 /****************************************************************
423 ****************************************************************/
424
425 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
426 struct libnet_JoinCtx *r)
427 {
428 ADS_STATUS status;
429 ADS_MODLIST mods;
430
431 if (!r->in.create_upn) {
432 return ADS_SUCCESS;
433 }
434
435 /* Find our DN */
436
437 status = libnet_join_find_machine_acct(mem_ctx, r);
438 if (!ADS_ERR_OK(status)) {
439 return status;
440 }
441
442 if (!r->in.upn) {
443 r->in.upn = talloc_asprintf(mem_ctx,
444 "host/%s@%s",
445 r->in.machine_name,
446 r->out.dns_domain_name);
447 if (!r->in.upn) {
448 return ADS_ERROR(LDAP_NO_MEMORY);
449 }
450 }
451
452 /* now do the mods */
453
454 mods = ads_init_mods(mem_ctx);
455 if (!mods) {
456 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
457 }
458
459 /* fields of primary importance */
460
461 status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
462 if (!ADS_ERR_OK(status)) {
463 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
464 }
465
466 return ads_gen_mod(r->in.ads, r->out.dn, mods);
467 }
468
469
470 /****************************************************************
471 ****************************************************************/
472
473 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
474 struct libnet_JoinCtx *r)
475 {
476 ADS_STATUS status;
477 ADS_MODLIST mods;
478 char *os_sp = NULL;
479
480 if (!r->in.os_name || !r->in.os_version ) {
481 return ADS_SUCCESS;
482 }
483
484 /* Find our DN */
485
486 status = libnet_join_find_machine_acct(mem_ctx, r);
487 if (!ADS_ERR_OK(status)) {
488 return status;
489 }
490
491 /* now do the mods */
492
493 mods = ads_init_mods(mem_ctx);
494 if (!mods) {
495 return ADS_ERROR(LDAP_NO_MEMORY);
496 }
497
498 os_sp = talloc_asprintf(mem_ctx, "Samba %s", samba_version_string());
499 if (!os_sp) {
500 return ADS_ERROR(LDAP_NO_MEMORY);
501 }
502
503 /* fields of primary importance */
504
505 status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
506 r->in.os_name);
507 if (!ADS_ERR_OK(status)) {
508 return status;
509 }
510
511 status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
512 r->in.os_version);
513 if (!ADS_ERR_OK(status)) {
514 return status;
515 }
516
517 status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
518 os_sp);
519 if (!ADS_ERR_OK(status)) {
520 return status;
521 }
522
523 return ads_gen_mod(r->in.ads, r->out.dn, mods);
524 }
525
526 /****************************************************************
527 ****************************************************************/
528
529 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
530 struct libnet_JoinCtx *r)
531 {
532 if (!USE_SYSTEM_KEYTAB) {
533 return true;
534 }
535
536 if (ads_keytab_create_default(r->in.ads) != 0) {
537 return false;
538 }
539
540 return true;
541 }
542
543 /****************************************************************
544 ****************************************************************/
545
546 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
547 struct libnet_JoinCtx *r)
548 {
549 uint32_t domain_func;
550 ADS_STATUS status;
551 const char *salt = NULL;
552 char *std_salt = NULL;
553
554 status = ads_domain_func_level(r->in.ads, &domain_func);
555 if (!ADS_ERR_OK(status)) {
556 libnet_join_set_error_string(mem_ctx, r,
557 "failed to determine domain functional level: %s",
558 ads_errstr(status));
559 return false;
560 }
561
562 /* go ahead and setup the default salt */
563
564 std_salt = kerberos_standard_des_salt();
565 if (!std_salt) {
566 libnet_join_set_error_string(mem_ctx, r,
567 "failed to obtain standard DES salt");
568 return false;
569 }
570
571 salt = talloc_strdup(mem_ctx, std_salt);
572 if (!salt) {
573 return false;
574 }
575
576 SAFE_FREE(std_salt);
577
578 /* if it's a Windows functional domain, we have to look for the UPN */
579
580 if (domain_func == DS_DOMAIN_FUNCTION_2000) {
581 char *upn;
582
583 upn = ads_get_upn(r->in.ads, mem_ctx,
584 r->in.machine_name);
585 if (upn) {
586 salt = talloc_strdup(mem_ctx, upn);
587 if (!salt) {
588 return false;
589 }
590 }
591 }
592
593 return kerberos_secrets_store_des_salt(salt);
594 }
595
596 /****************************************************************
597 ****************************************************************/
598
599 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
600 struct libnet_JoinCtx *r)
601 {
602 ADS_STATUS status;
603
604 if (!r->in.ads) {
605 status = libnet_join_connect_ads(mem_ctx, r);
606 if (!ADS_ERR_OK(status)) {
607 return status;
608 }
609 }
610
611 status = libnet_join_set_machine_spn(mem_ctx, r);
612 if (!ADS_ERR_OK(status)) {
613 libnet_join_set_error_string(mem_ctx, r,
614 "failed to set machine spn: %s",
615 ads_errstr(status));
616 return status;
617 }
618
619 status = libnet_join_set_os_attributes(mem_ctx, r);
620 if (!ADS_ERR_OK(status)) {
621 libnet_join_set_error_string(mem_ctx, r,
622 "failed to set machine os attributes: %s",
623 ads_errstr(status));
624 return status;
625 }
626
627 status = libnet_join_set_machine_upn(mem_ctx, r);
628 if (!ADS_ERR_OK(status)) {
629 libnet_join_set_error_string(mem_ctx, r,
630 "failed to set machine upn: %s",
631 ads_errstr(status));
632 return status;
633 }
634
635 if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
636 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
637 }
638
639 if (!libnet_join_create_keytab(mem_ctx, r)) {
640 libnet_join_set_error_string(mem_ctx, r,
641 "failed to create kerberos keytab");
642 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
643 }
644
645 return ADS_SUCCESS;
646 }
647 #endif /* HAVE_ADS */
648
649 /****************************************************************
650 Store the machine password and domain SID
651 ****************************************************************/
652
653 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
654 struct libnet_JoinCtx *r)
655 {
656 if (!secrets_store_domain_sid(r->out.netbios_domain_name,
657 r->out.domain_sid))
658 {
659 DEBUG(1,("Failed to save domain sid\n"));
660 return false;
661 }
662
663 if (!secrets_store_machine_password(r->in.machine_password,
664 r->out.netbios_domain_name,
665 r->in.secure_channel_type))
666 {
667 DEBUG(1,("Failed to save machine password\n"));
668 return false;
669 }
670
671 return true;
672 }
673
674 /****************************************************************
675 Connect dc's IPC$ share
676 ****************************************************************/
677
678 static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
679 const char *user,
680 const char *pass,
681 bool use_kerberos,
682 struct cli_state **cli)
683 {
684 int flags = 0;
685
686 if (use_kerberos) {
687 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
688 }
689
690 if (use_kerberos && pass) {
691 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
692 }
693
694 return cli_full_connection(cli, NULL,
695 dc,
696 NULL, 0,
697 "IPC$", "IPC",
698 user,
699 NULL,
700 pass,
701 flags,
702 Undefined);
703 }
704
705 /****************************************************************
706 Lookup domain dc's info
707 ****************************************************************/
708
709 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
710 struct libnet_JoinCtx *r,
711 struct cli_state **cli)
712 {
713 struct rpc_pipe_client *pipe_hnd = NULL;
714 struct policy_handle lsa_pol;
715 NTSTATUS status, result;
716 union lsa_PolicyInformation *info = NULL;
717 struct dcerpc_binding_handle *b;
718
719 status = libnet_join_connect_dc_ipc(r->in.dc_name,
720 r->in.admin_account,
721 r->in.admin_password,
722 r->in.use_kerberos,
723 cli);
724 if (!NT_STATUS_IS_OK(status)) {
725 goto done;
726 }
727
728 status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc.syntax_id,
729 &pipe_hnd);
730 if (!NT_STATUS_IS_OK(status)) {
731 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
732 nt_errstr(status)));
733 goto done;
734 }
735
736 b = pipe_hnd->binding_handle;
737
738 status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
739 SEC_FLAG_MAXIMUM_ALLOWED, &lsa_pol);
740 if (!NT_STATUS_IS_OK(status)) {
741 goto done;
742 }
743
744 status = dcerpc_lsa_QueryInfoPolicy2(b, mem_ctx,
745 &lsa_pol,
746 LSA_POLICY_INFO_DNS,
747 &info,
748 &result);
749 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
750 r->out.domain_is_ad = true;
751 r->out.netbios_domain_name = info->dns.name.string;
752 r->out.dns_domain_name = info->dns.dns_domain.string;
753 r->out.forest_name = info->dns.dns_forest.string;
754 r->out.domain_sid = dom_sid_dup(mem_ctx, info->dns.sid);
755 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
756 }
757
758 if (!NT_STATUS_IS_OK(status)) {
759 status = dcerpc_lsa_QueryInfoPolicy(b, mem_ctx,
760 &lsa_pol,
761 LSA_POLICY_INFO_ACCOUNT_DOMAIN,
762 &info,
763 &result);
764 if (!NT_STATUS_IS_OK(status)) {
765 goto done;
766 }
767 if (!NT_STATUS_IS_OK(result)) {
768 status = result;
769 goto done;
770 }
771
772 r->out.netbios_domain_name = info->account_domain.name.string;
773 r->out.domain_sid = dom_sid_dup(mem_ctx, info->account_domain.sid);
774 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
775 }
776
777 dcerpc_lsa_Close(b, mem_ctx, &lsa_pol, &result);
778 TALLOC_FREE(pipe_hnd);
779
780 done:
781 return status;
782 }
783
784 /****************************************************************
785 Do the domain join unsecure
786 ****************************************************************/
787
788 static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
789 struct libnet_JoinCtx *r,
790 struct cli_state *cli)
791 {
792 struct rpc_pipe_client *pipe_hnd = NULL;
793 unsigned char orig_trust_passwd_hash[16];
794 unsigned char new_trust_passwd_hash[16];
795 fstring trust_passwd;
796 NTSTATUS status;
797
798 status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon.syntax_id,
799 &pipe_hnd);
800 if (!NT_STATUS_IS_OK(status)) {
801 return status;
802 }
803
804 if (!r->in.machine_password) {
805 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
806 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
807 }
808
809 E_md4hash(r->in.machine_password, new_trust_passwd_hash);
810
811 /* according to WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED */
812 fstrcpy(trust_passwd, r->in.admin_password);
813 strlower_m(trust_passwd);
814
815 /*
816 * Machine names can be 15 characters, but the max length on
817 * a password is 14. --jerry
818 */
819
820 trust_passwd[14] = '\0';
821
822 E_md4hash(trust_passwd, orig_trust_passwd_hash);
823
824 status = rpccli_netlogon_set_trust_password(pipe_hnd, mem_ctx,
825 r->in.machine_name,
826 orig_trust_passwd_hash,
827 r->in.machine_password,
828 new_trust_passwd_hash,
829 r->in.secure_channel_type);
830
831 return status;
832 }
833
834 /****************************************************************
835 Do the domain join
836 ****************************************************************/
837
838 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
839 struct libnet_JoinCtx *r,
840 struct cli_state *cli)
841 {
842 struct rpc_pipe_client *pipe_hnd = NULL;
843 struct policy_handle sam_pol, domain_pol, user_pol;
844 NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
845 char *acct_name;
846 struct lsa_String lsa_acct_name;
847 uint32_t user_rid;
848 uint32_t acct_flags = ACB_WSTRUST;
849 struct samr_Ids user_rids;
850 struct samr_Ids name_types;
851 union samr_UserInfo user_info;
852 struct dcerpc_binding_handle *b = NULL;
853 unsigned int old_timeout = 0;
854
855 struct samr_CryptPassword crypt_pwd;
856 struct samr_CryptPasswordEx crypt_pwd_ex;
857
858 ZERO_STRUCT(sam_pol);
859 ZERO_STRUCT(domain_pol);
860 ZERO_STRUCT(user_pol);
861
862 switch (r->in.secure_channel_type) {
863 case SEC_CHAN_WKSTA:
864 acct_flags = ACB_WSTRUST;
865 break;
866 case SEC_CHAN_BDC:
867 acct_flags = ACB_SVRTRUST;
868 break;
869 default:
870 return NT_STATUS_INVALID_PARAMETER;
871 }
872
873 if (!r->in.machine_password) {
874 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
875 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
876 }
877
878 /* Open the domain */
879
880 status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
881 &pipe_hnd);
882 if (!NT_STATUS_IS_OK(status)) {
883 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
884 nt_errstr(status)));
885 goto done;
886 }
887
888 b = pipe_hnd->binding_handle;
889
890 status = dcerpc_samr_Connect2(b, mem_ctx,
891 pipe_hnd->desthost,
892 SAMR_ACCESS_ENUM_DOMAINS
893 | SAMR_ACCESS_LOOKUP_DOMAIN,
894 &sam_pol,
895 &result);
896 if (!NT_STATUS_IS_OK(status)) {
897 goto done;
898 }
899 if (!NT_STATUS_IS_OK(result)) {
900 status = result;
901 goto done;
902 }
903
904 status = dcerpc_samr_OpenDomain(b, mem_ctx,
905 &sam_pol,
906 SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
907 | SAMR_DOMAIN_ACCESS_CREATE_USER
908 | SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
909 r->out.domain_sid,
910 &domain_pol,
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 /* Create domain user */
921
922 acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
923 strlower_m(acct_name);
924
925 init_lsa_String(&lsa_acct_name, acct_name);
926
927 if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
928 uint32_t access_desired =
929 SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
930 SEC_STD_WRITE_DAC | SEC_STD_DELETE |
931 SAMR_USER_ACCESS_SET_PASSWORD |
932 SAMR_USER_ACCESS_GET_ATTRIBUTES |
933 SAMR_USER_ACCESS_SET_ATTRIBUTES;
934 uint32_t access_granted = 0;
935
936 DEBUG(10,("Creating account with desired access mask: %d\n",
937 access_desired));
938
939 status = dcerpc_samr_CreateUser2(b, mem_ctx,
940 &domain_pol,
941 &lsa_acct_name,
942 acct_flags,
943 access_desired,
944 &user_pol,
945 &access_granted,
946 &user_rid,
947 &result);
948 if (!NT_STATUS_IS_OK(status)) {
949 goto done;
950 }
951
952 status = result;
953 if (!NT_STATUS_IS_OK(status) &&
954 !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
955
956 DEBUG(10,("Creation of workstation account failed: %s\n",
957 nt_errstr(status)));
958
959 /* If NT_STATUS_ACCESS_DENIED then we have a valid
960 username/password combo but the user does not have
961 administrator access. */
962
963 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
964 libnet_join_set_error_string(mem_ctx, r,
965 "User specified does not have "
966 "administrator privileges");
967 }
968
969 goto done;
970 }
971
972 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
973 if (!(r->in.join_flags &
974 WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
975 goto done;
976 }
977 }
978
979 /* We *must* do this.... don't ask... */
980
981 if (NT_STATUS_IS_OK(status)) {
982 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
983 }
984 }
985
986 status = dcerpc_samr_LookupNames(b, mem_ctx,
987 &domain_pol,
988 1,
989 &lsa_acct_name,
990 &user_rids,
991 &name_types,
992 &result);
993 if (!NT_STATUS_IS_OK(status)) {
994 goto done;
995 }
996 if (!NT_STATUS_IS_OK(result)) {
997 status = result;
998 goto done;
999 }
1000 if (user_rids.count != 1) {
1001 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1002 goto done;
1003 }
1004 if (name_types.count != 1) {
1005 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1006 goto done;
1007 }
1008
1009 if (name_types.ids[0] != SID_NAME_USER) {
1010 DEBUG(0,("%s is not a user account (type=%d)\n",
1011 acct_name, name_types.ids[0]));
1012 status = NT_STATUS_INVALID_WORKSTATION;
1013 goto done;
1014 }
1015
1016 user_rid = user_rids.ids[0];
1017
1018 /* Open handle on user */
1019
1020 status = dcerpc_samr_OpenUser(b, mem_ctx,
1021 &domain_pol,
1022 SEC_FLAG_MAXIMUM_ALLOWED,
1023 user_rid,
1024 &user_pol,
1025 &result);
1026 if (!NT_STATUS_IS_OK(status)) {
1027 goto done;
1028 }
1029 if (!NT_STATUS_IS_OK(result)) {
1030 status = result;
1031 goto done;
1032 }
1033
1034 /* Fill in the additional account flags now */
1035
1036 acct_flags |= ACB_PWNOEXP;
1037
1038 /* Set account flags on machine account */
1039 ZERO_STRUCT(user_info.info16);
1040 user_info.info16.acct_flags = acct_flags;
1041
1042 status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1043 &user_pol,
1044 16,
1045 &user_info,
1046 &result);
1047 if (!NT_STATUS_IS_OK(status)) {
1048 dcerpc_samr_DeleteUser(b, mem_ctx,
1049 &user_pol,
1050 &result);
1051
1052 libnet_join_set_error_string(mem_ctx, r,
1053 "Failed to set account flags for machine account (%s)\n",
1054 nt_errstr(status));
1055 goto done;
1056 }
1057
1058 if (!NT_STATUS_IS_OK(result)) {
1059 status = result;
1060
1061 dcerpc_samr_DeleteUser(b, mem_ctx,
1062 &user_pol,
1063 &result);
1064
1065 libnet_join_set_error_string(mem_ctx, r,
1066 "Failed to set account flags for machine account (%s)\n",
1067 nt_errstr(status));
1068 goto done;
1069 }
1070
1071 /* Set password on machine account - first try level 26 */
1072
1073 /*
1074 * increase the timeout as password filter modules on the DC
1075 * might delay the operation for a significant amount of time
1076 */
1077 old_timeout = rpccli_set_timeout(pipe_hnd, 600000);
1078
1079 init_samr_CryptPasswordEx(r->in.machine_password,
1080 &cli->user_session_key,
1081 &crypt_pwd_ex);
1082
1083 user_info.info26.password = crypt_pwd_ex;
1084 user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1085
1086 status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1087 &user_pol,
1088 26,
1089 &user_info,
1090 &result);
1091
1092 if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE)) {
1093
1094 /* retry with level 24 */
1095
1096 init_samr_CryptPassword(r->in.machine_password,
1097 &cli->user_session_key,
1098 &crypt_pwd);
1099
1100 user_info.info24.password = crypt_pwd;
1101 user_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1102
1103 status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1104 &user_pol,
1105 24,
1106 &user_info,
1107 &result);
1108 }
1109
1110 old_timeout = rpccli_set_timeout(pipe_hnd, old_timeout);
1111
1112 if (!NT_STATUS_IS_OK(status)) {
1113
1114 dcerpc_samr_DeleteUser(b, mem_ctx,
1115 &user_pol,
1116 &result);
1117
1118 libnet_join_set_error_string(mem_ctx, r,
1119 "Failed to set password for machine account (%s)\n",
1120 nt_errstr(status));
1121 goto done;
1122 }
1123 if (!NT_STATUS_IS_OK(result)) {
1124 status = result;
1125
1126 dcerpc_samr_DeleteUser(b, mem_ctx,
1127 &user_pol,
1128 &result);
1129
1130 libnet_join_set_error_string(mem_ctx, r,
1131 "Failed to set password for machine account (%s)\n",
1132 nt_errstr(status));
1133 goto done;
1134 }
1135
1136 status = NT_STATUS_OK;
1137
1138 done:
1139 if (!pipe_hnd) {
1140 return status;
1141 }
1142
1143 if (is_valid_policy_hnd(&sam_pol)) {
1144 dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1145 }
1146 if (is_valid_policy_hnd(&domain_pol)) {
1147 dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1148 }
1149 if (is_valid_policy_hnd(&user_pol)) {
1150 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1151 }
1152 TALLOC_FREE(pipe_hnd);
1153
1154 return status;
1155 }
1156
1157 /****************************************************************
1158 ****************************************************************/
1159
1160 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
1161 const char *machine_name,
1162 const char *dc_name)
1163 {
1164 uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
1165 struct cli_state *cli = NULL;
1166 struct rpc_pipe_client *pipe_hnd = NULL;
1167 struct rpc_pipe_client *netlogon_pipe = NULL;
1168 NTSTATUS status;
1169 char *machine_password = NULL;
1170 char *machine_account = NULL;
1171
1172 if (!dc_name) {
1173 return NT_STATUS_INVALID_PARAMETER;
1174 }
1175
1176 if (!secrets_init()) {
1177 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1178 }
1179
1180 machine_password = secrets_fetch_machine_password(netbios_domain_name,
1181 NULL, NULL);
1182 if (!machine_password) {
1183 return NT_STATUS_NO_TRUST_LSA_SECRET;
1184 }
1185
1186 if (asprintf(&machine_account, "%s$", machine_name) == -1) {
1187 SAFE_FREE(machine_password);
1188 return NT_STATUS_NO_MEMORY;
1189 }
1190
1191 status = cli_full_connection(&cli, NULL,
1192 dc_name,
1193 NULL, 0,
1194 "IPC$", "IPC",
1195 machine_account,
1196 NULL,
1197 machine_password,
1198 0,
1199 Undefined);
1200 free(machine_account);
1201 free(machine_password);
1202
1203 if (!NT_STATUS_IS_OK(status)) {
1204 status = cli_full_connection(&cli, NULL,
1205 dc_name,
1206 NULL, 0,
1207 "IPC$", "IPC",
1208 "",
1209 NULL,
1210 "",
1211 0,
1212 Undefined);
1213 }
1214
1215 if (!NT_STATUS_IS_OK(status)) {
1216 return status;
1217 }
1218
1219 status = get_schannel_session_key(cli, netbios_domain_name,
1220 &neg_flags, &netlogon_pipe);
1221 if (!NT_STATUS_IS_OK(status)) {
1222 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
1223 cli_shutdown(cli);
1224 return NT_STATUS_OK;
1225 }
1226
1227 DEBUG(0,("libnet_join_ok: failed to get schannel session "
1228 "key from server %s for domain %s. Error was %s\n",
1229 cli->desthost, netbios_domain_name, nt_errstr(status)));
1230 cli_shutdown(cli);
1231 return status;
1232 }
1233
1234 if (!lp_client_schannel()) {
1235 cli_shutdown(cli);
1236 return NT_STATUS_OK;
1237 }
1238
1239 status = cli_rpc_pipe_open_schannel_with_key(
1240 cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
1241 DCERPC_AUTH_LEVEL_PRIVACY,
1242 netbios_domain_name, &netlogon_pipe->dc, &pipe_hnd);
1243
1244 cli_shutdown(cli);
1245
1246 if (!NT_STATUS_IS_OK(status)) {
1247 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1248 "on netlogon pipe to server %s for domain %s. "
1249 "Error was %s\n",
1250 cli->desthost, netbios_domain_name, nt_errstr(status)));
1251 return status;
1252 }
1253
1254 return NT_STATUS_OK;
1255 }
1256
1257 /****************************************************************
1258 ****************************************************************/
1259
1260 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1261 struct libnet_JoinCtx *r)
1262 {
1263 NTSTATUS status;
1264
1265 status = libnet_join_ok(r->out.netbios_domain_name,
1266 r->in.machine_name,
1267 r->in.dc_name);
1268 if (!NT_STATUS_IS_OK(status)) {
1269 libnet_join_set_error_string(mem_ctx, r,
1270 "failed to verify domain membership after joining: %s",
1271 get_friendly_nt_error_msg(status));
1272 return WERR_SETUP_NOT_JOINED;
1273 }
1274
1275 return WERR_OK;
1276 }
1277
1278 /****************************************************************
1279 ****************************************************************/
1280
1281 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1282 struct libnet_UnjoinCtx *r)
1283 {
1284 if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1285 return false;
1286 }
1287
1288 if (!secrets_delete_domain_sid(lp_workgroup())) {
1289 return false;
1290 }
1291
1292 return true;
1293 }
1294
1295 /****************************************************************
1296 ****************************************************************/
1297
1298 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1299 struct libnet_UnjoinCtx *r)
1300 {
1301 struct cli_state *cli = NULL;
1302 struct rpc_pipe_client *pipe_hnd = NULL;
1303 struct policy_handle sam_pol, domain_pol, user_pol;
1304 NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
1305 char *acct_name;
1306 uint32_t user_rid;
1307 struct lsa_String lsa_acct_name;
1308 struct samr_Ids user_rids;
1309 struct samr_Ids name_types;
1310 union samr_UserInfo *info = NULL;
1311 struct dcerpc_binding_handle *b = NULL;
1312
1313 ZERO_STRUCT(sam_pol);
1314 ZERO_STRUCT(domain_pol);
1315 ZERO_STRUCT(user_pol);
1316
1317 status = libnet_join_connect_dc_ipc(r->in.dc_name,
1318 r->in.admin_account,
1319 r->in.admin_password,
1320 r->in.use_kerberos,
1321 &cli);
1322 if (!NT_STATUS_IS_OK(status)) {
1323 goto done;
1324 }
1325
1326 /* Open the domain */
1327
1328 status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
1329 &pipe_hnd);
1330 if (!NT_STATUS_IS_OK(status)) {
1331 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1332 nt_errstr(status)));
1333 goto done;
1334 }
1335
1336 b = pipe_hnd->binding_handle;
1337
1338 status = dcerpc_samr_Connect2(b, mem_ctx,
1339 pipe_hnd->desthost,
1340 SEC_FLAG_MAXIMUM_ALLOWED,
1341 &sam_pol,
1342 &result);
1343 if (!NT_STATUS_IS_OK(status)) {
1344 goto done;
1345 }
1346 if (!NT_STATUS_IS_OK(result)) {
1347 status = result;
1348 goto done;
1349 }
1350
1351 status = dcerpc_samr_OpenDomain(b, mem_ctx,
1352 &sam_pol,
1353 SEC_FLAG_MAXIMUM_ALLOWED,
1354 r->in.domain_sid,
1355 &domain_pol,
1356 &result);
1357 if (!NT_STATUS_IS_OK(status)) {
1358 goto done;
1359 }
1360 if (!NT_STATUS_IS_OK(result)) {
1361 status = result;
1362 goto done;
1363 }
1364
1365 /* Create domain user */
1366
1367 acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1368 strlower_m(acct_name);
1369
1370 init_lsa_String(&lsa_acct_name, acct_name);
1371
1372 status = dcerpc_samr_LookupNames(b, mem_ctx,
1373 &domain_pol,
1374 1,
1375 &lsa_acct_name,
1376 &user_rids,
1377 &name_types,
1378 &result);
1379
1380 if (!NT_STATUS_IS_OK(status)) {
1381 goto done;
1382 }
1383 if (!NT_STATUS_IS_OK(result)) {
1384 status = result;
1385 goto done;
1386 }
1387 if (user_rids.count != 1) {
1388 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1389 goto done;
1390 }
1391 if (name_types.count != 1) {
1392 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1393 goto done;
1394 }
1395
1396 if (name_types.ids[0] != SID_NAME_USER) {
1397 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1398 name_types.ids[0]));
1399 status = NT_STATUS_INVALID_WORKSTATION;
1400 goto done;
1401 }
1402
1403 user_rid = user_rids.ids[0];
1404
1405 /* Open handle on user */
1406
1407 status = dcerpc_samr_OpenUser(b, mem_ctx,
1408 &domain_pol,
1409 SEC_FLAG_MAXIMUM_ALLOWED,
1410 user_rid,
1411 &user_pol,
1412 &result);
1413 if (!NT_STATUS_IS_OK(status)) {
1414 goto done;
1415 }
1416 if (!NT_STATUS_IS_OK(result)) {
1417 status = result;
1418 goto done;
1419 }
1420
1421 /* Get user info */
1422
1423 status = dcerpc_samr_QueryUserInfo(b, mem_ctx,
1424 &user_pol,
1425 16,
1426 &info,
1427 &result);
1428 if (!NT_STATUS_IS_OK(status)) {
1429 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1430 goto done;
1431 }
1432 if (!NT_STATUS_IS_OK(result)) {
1433 status = result;
1434 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1435 goto done;
1436 }
1437
1438 /* now disable and setuser info */
1439
1440 info->info16.acct_flags |= ACB_DISABLED;
1441
1442 status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1443 &user_pol,
1444 16,
1445 info,
1446 &result);
1447 if (!NT_STATUS_IS_OK(status)) {
1448 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1449 goto done;
1450 }
1451 if (!NT_STATUS_IS_OK(result)) {
1452 status = result;
1453 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1454 goto done;
1455 }
1456 status = result;
1457 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1458
1459 done:
1460 if (pipe_hnd && b) {
1461 if (is_valid_policy_hnd(&domain_pol)) {
1462 dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1463 }
1464 if (is_valid_policy_hnd(&sam_pol)) {
1465 dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1466 }
1467 TALLOC_FREE(pipe_hnd);
1468 }
1469
1470 if (cli) {
1471 cli_shutdown(cli);
1472 }
1473
1474 return status;
1475 }
1476
1477 /****************************************************************
1478 ****************************************************************/
1479
1480 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1481 {
1482 WERROR werr = WERR_OK;
1483 sbcErr err;
1484 struct smbconf_ctx *ctx;
1485
1486 err = smbconf_init_reg(r, &ctx, NULL);
1487 if (!SBC_ERROR_IS_OK(err)) {
1488 werr = WERR_NO_SUCH_SERVICE;
1489 goto done;
1490 }
1491
1492 if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1493
1494 err = smbconf_set_global_parameter(ctx, "security", "user");
1495 if (!SBC_ERROR_IS_OK(err)) {
1496 werr = WERR_NO_SUCH_SERVICE;
1497 goto done;
1498 }
1499
1500 err = smbconf_set_global_parameter(ctx, "workgroup",
1501 r->in.domain_name);
1502 if (!SBC_ERROR_IS_OK(err)) {
1503 werr = WERR_NO_SUCH_SERVICE;
1504 goto done;
1505 }
1506
1507 smbconf_delete_global_parameter(ctx, "realm");
1508 goto done;
1509 }
1510
1511 err = smbconf_set_global_parameter(ctx, "security", "domain");
1512 if (!SBC_ERROR_IS_OK(err)) {
1513 werr = WERR_NO_SUCH_SERVICE;
1514 goto done;
1515 }
1516
1517 err = smbconf_set_global_parameter(ctx, "workgroup",
1518 r->out.netbios_domain_name);
1519 if (!SBC_ERROR_IS_OK(err)) {
1520 werr = WERR_NO_SUCH_SERVICE;
1521 goto done;
1522 }
1523
1524 if (r->out.domain_is_ad) {
1525 err = smbconf_set_global_parameter(ctx, "security", "ads");
1526 if (!SBC_ERROR_IS_OK(err)) {
1527 werr = WERR_NO_SUCH_SERVICE;
1528 goto done;
1529 }
1530
1531 err = smbconf_set_global_parameter(ctx, "realm",
1532 r->out.dns_domain_name);
1533 if (!SBC_ERROR_IS_OK(err)) {
1534 werr = WERR_NO_SUCH_SERVICE;
1535 goto done;
1536 }
1537 }
1538
1539 done:
1540 smbconf_shutdown(ctx);
1541 return werr;
1542 }
1543
1544 /****************************************************************
1545 ****************************************************************/
1546
1547 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1548 {
1549 WERROR werr = WERR_OK;
1550 sbcErr err;
1551 struct smbconf_ctx *ctx;
1552
1553 err = smbconf_init_reg(r, &ctx, NULL);
1554 if (!SBC_ERROR_IS_OK(err)) {
1555 werr = WERR_NO_SUCH_SERVICE;
1556 goto done;
1557 }
1558
1559 if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1560
1561 err = smbconf_set_global_parameter(ctx, "security", "user");
1562 if (!SBC_ERROR_IS_OK(err)) {
1563 werr = WERR_NO_SUCH_SERVICE;
1564 goto done;
1565 }
1566
1567 err = smbconf_delete_global_parameter(ctx, "workgroup");
1568 if (!SBC_ERROR_IS_OK(err)) {
1569 werr = WERR_NO_SUCH_SERVICE;
1570 goto done;
1571 }
1572
1573 smbconf_delete_global_parameter(ctx, "realm");
1574 }
1575
1576 done:
1577 smbconf_shutdown(ctx);
1578 return werr;
1579 }
1580
1581 /****************************************************************
1582 ****************************************************************/
1583
1584 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1585 {
1586 WERROR werr;
1587
1588 if (!W_ERROR_IS_OK(r->out.result)) {
1589 return r->out.result;
1590 }
1591
1592 if (!r->in.modify_config) {
1593 return WERR_OK;
1594 }
1595
1596 werr = do_join_modify_vals_config(r);
1597 if (!W_ERROR_IS_OK(werr)) {
1598 return werr;
1599 }
1600
1601 lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1602
1603 r->out.modified_config = true;
1604 r->out.result = werr;
1605
1606 return werr;
1607 }
1608
1609 /****************************************************************
1610 ****************************************************************/
1611
1612 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1613 {
1614 WERROR werr;
1615
1616 if (!W_ERROR_IS_OK(r->out.result)) {
1617 return r->out.result;
1618 }
1619
1620 if (!r->in.modify_config) {
1621 return WERR_OK;
1622 }
1623
1624 werr = do_unjoin_modify_vals_config(r);
1625 if (!W_ERROR_IS_OK(werr)) {
1626 return werr;
1627 }
1628
1629 lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1630
1631 r->out.modified_config = true;
1632 r->out.result = werr;
1633
1634 return werr;
1635 }
1636
1637 /****************************************************************
1638 ****************************************************************/
1639
1640 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1641 const char *domain_str,
1642 const char **domain_p,
1643 const char **dc_p)
1644 {
1645 char *domain = NULL;
1646 char *dc = NULL;
1647 const char *p = NULL;
1648
1649 if (!domain_str || !domain_p || !dc_p) {
1650 return false;
1651 }
1652
1653 p = strchr_m(domain_str, '\\');
1654
1655 if (p != NULL) {
1656 domain = talloc_strndup(mem_ctx, domain_str,
1657 PTR_DIFF(p, domain_str));
1658 dc = talloc_strdup(mem_ctx, p+1);
1659 if (!dc) {
1660 return false;
1661 }
1662 } else {
1663 domain = talloc_strdup(mem_ctx, domain_str);
1664 dc = NULL;
1665 }
1666 if (!domain) {
1667 return false;
1668 }
1669
1670 *domain_p = domain;
1671
1672 if (!*dc_p && dc) {
1673 *dc_p = dc;
1674 }
1675
1676 return true;
1677 }
1678
1679 /****************************************************************
1680 ****************************************************************/
1681
1682 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1683 struct libnet_JoinCtx *r)
1684 {
1685 if (!r->in.domain_name) {
1686 libnet_join_set_error_string(mem_ctx, r,
1687 "No domain name defined");
1688 return WERR_INVALID_PARAM;
1689 }
1690
1691 if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1692 &r->in.domain_name,
1693 &r->in.dc_name)) {
1694 libnet_join_set_error_string(mem_ctx, r,
1695 "Failed to parse domain name");
1696 return WERR_INVALID_PARAM;
1697 }
1698
1699 if (IS_DC) {
1700 return WERR_SETUP_DOMAIN_CONTROLLER;
1701 }
1702
1703 if (!secrets_init()) {
1704 libnet_join_set_error_string(mem_ctx, r,
1705 "Unable to open secrets database");
1706 return WERR_CAN_NOT_COMPLETE;
1707 }
1708
1709 return WERR_OK;
1710 }
1711
1712 /****************************************************************
1713 ****************************************************************/
1714
1715 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1716 {
1717 NTSTATUS status;
1718
1719 /* Try adding dom admins to builtin\admins. Only log failures. */
1720 status = create_builtin_administrators(domain_sid);
1721 if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1722 DEBUG(10,("Unable to auto-add domain administrators to "
1723 "BUILTIN\\Administrators during join because "
1724 "winbindd must be running."));
1725 } else if (!NT_STATUS_IS_OK(status)) {
1726 DEBUG(5, ("Failed to auto-add domain administrators to "
1727 "BUILTIN\\Administrators during join: %s\n",
1728 nt_errstr(status)));
1729 }
1730
1731 /* Try adding dom users to builtin\users. Only log failures. */
1732 status = create_builtin_users(domain_sid);
1733 if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1734 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1735 "during join because winbindd must be running."));
1736 } else if (!NT_STATUS_IS_OK(status)) {
1737 DEBUG(5, ("Failed to auto-add domain administrators to "
1738 "BUILTIN\\Administrators during join: %s\n",
1739 nt_errstr(status)));
1740 }
1741 }
1742
1743 /****************************************************************
1744 ****************************************************************/
1745
1746 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1747 struct libnet_JoinCtx *r)
1748 {
1749 WERROR werr;
1750
1751 if (!W_ERROR_IS_OK(r->out.result)) {
1752 return r->out.result;
1753 }
1754
1755 werr = do_JoinConfig(r);
1756 if (!W_ERROR_IS_OK(werr)) {
1757 return werr;
1758 }
1759
1760 if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1761 return WERR_OK;
1762 }
1763
1764 saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
1765 if (r->out.dns_domain_name) {
1766 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
1767 }
1768
1769 #ifdef HAVE_ADS
1770 if (r->out.domain_is_ad &&
1771 !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1772 ADS_STATUS ads_status;
1773
1774 ads_status = libnet_join_post_processing_ads(mem_ctx, r);
1775 if (!ADS_ERR_OK(ads_status)) {
1776 return WERR_GENERAL_FAILURE;
1777 }
1778 }
1779 #endif /* HAVE_ADS */
1780
1781 libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
1782
1783 return WERR_OK;
1784 }
1785
1786 /****************************************************************
1787 ****************************************************************/
1788
1789 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1790 {
1791 if (r->in.ads) {
1792 ads_destroy(&r->in.ads);
1793 }
1794
1795 return 0;
1796 }
1797
1798 /****************************************************************
1799 ****************************************************************/
1800
1801 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1802 {
1803 if (r->in.ads) {
1804 ads_destroy(&r->in.ads);
1805 }
1806
1807 return 0;
1808 }
1809
1810 /****************************************************************
1811 ****************************************************************/
1812
1813 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1814 struct libnet_JoinCtx **r)
1815 {
1816 struct libnet_JoinCtx *ctx;
1817
1818 ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1819 if (!ctx) {
1820 return WERR_NOMEM;
1821 }
1822
1823 talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1824
1825 ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1826 W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1827
1828 ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1829
1830 *r = ctx;
1831
1832 return WERR_OK;
1833 }
1834
1835 /****************************************************************
1836 ****************************************************************/
1837
1838 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1839 struct libnet_UnjoinCtx **r)
1840 {
1841 struct libnet_UnjoinCtx *ctx;
1842
1843 ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1844 if (!ctx) {
1845 return WERR_NOMEM;
1846 }
1847
1848 talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1849
1850 ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1851 W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1852
1853 *r = ctx;
1854
1855 return WERR_OK;
1856 }
1857
1858 /****************************************************************
1859 ****************************************************************/
1860
1861 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1862 struct libnet_JoinCtx *r)
1863 {
1864 bool valid_security = false;
1865 bool valid_workgroup = false;
1866 bool valid_realm = false;
1867
1868 /* check if configuration is already set correctly */
1869
1870 valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
1871
1872 switch (r->out.domain_is_ad) {
1873 case false:
1874 valid_security = (lp_security() == SEC_DOMAIN);
1875 if (valid_workgroup && valid_security) {
1876 /* nothing to be done */
1877 return WERR_OK;
1878 }
1879 break;
1880 case true:
1881 valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
1882 switch (lp_security()) {
1883 case SEC_DOMAIN:
1884 case SEC_ADS:
1885 valid_security = true;
1886 }
1887
1888 if (valid_workgroup && valid_realm && valid_security) {
1889 /* nothing to be done */
1890 return WERR_OK;
1891 }
1892 break;
1893 }
1894
1895 /* check if we are supposed to manipulate configuration */
1896
1897 if (!r->in.modify_config) {
1898
1899 char *wrong_conf = talloc_strdup(mem_ctx, "");
1900
1901 if (!valid_workgroup) {
1902 wrong_conf = talloc_asprintf_append(wrong_conf,
1903 "\"workgroup\" set to '%s', should be '%s'",
1904 lp_workgroup(), r->out.netbios_domain_name);
1905 W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1906 }
1907
1908 if (!valid_realm) {
1909 wrong_conf = talloc_asprintf_append(wrong_conf,
1910 "\"realm\" set to '%s', should be '%s'",
1911 lp_realm(), r->out.dns_domain_name);
1912 W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1913 }
1914
1915 if (!valid_security) {
1916 const char *sec = NULL;
1917 switch (lp_security()) {
1918 case SEC_SHARE: sec = "share"; break;
1919 case SEC_USER: sec = "user"; break;
1920 case SEC_DOMAIN: sec = "domain"; break;
1921 case SEC_ADS: sec = "ads"; break;
1922 }
1923 wrong_conf = talloc_asprintf_append(wrong_conf,
1924 "\"security\" set to '%s', should be %s",
1925 sec, r->out.domain_is_ad ?
1926 "either 'domain' or 'ads'" : "'domain'");
1927 W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1928 }
1929
1930 libnet_join_set_error_string(mem_ctx, r,
1931 "Invalid configuration (%s) and configuration modification "
1932 "was not requested", wrong_conf);
1933 return WERR_CAN_NOT_COMPLETE;
1934 }
1935
1936 /* check if we are able to manipulate configuration */
1937
1938 if (!lp_config_backend_is_registry()) {
1939 libnet_join_set_error_string(mem_ctx, r,
1940 "Configuration manipulation requested but not "
1941 "supported by backend");
1942 return WERR_NOT_SUPPORTED;
1943 }
1944
1945 return WERR_OK;
1946 }
1947
1948 /****************************************************************
1949 ****************************************************************/
1950
1951 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1952 struct libnet_JoinCtx *r)
1953 {
1954 NTSTATUS status;
1955 WERROR werr;
1956 struct cli_state *cli = NULL;
1957 #ifdef HAVE_ADS
1958 ADS_STATUS ads_status;
1959 #endif /* HAVE_ADS */
1960
1961 if (!r->in.dc_name) {
1962 struct netr_DsRGetDCNameInfo *info;
1963 const char *dc;
1964 status = dsgetdcname(mem_ctx,
1965 r->in.msg_ctx,
1966 r->in.domain_name,
1967 NULL,
1968 NULL,
1969 DS_FORCE_REDISCOVERY |
1970 DS_DIRECTORY_SERVICE_REQUIRED |
1971 DS_WRITABLE_REQUIRED |
1972 DS_RETURN_DNS_NAME,
1973 &info);
1974 if (!NT_STATUS_IS_OK(status)) {
1975 libnet_join_set_error_string(mem_ctx, r,
1976 "failed to find DC for domain %s",
1977 r->in.domain_name,
1978 get_friendly_nt_error_msg(status));
1979 return WERR_DCNOTFOUND;
1980 }
1981
1982 dc = strip_hostname(info->dc_unc);
1983 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1984 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1985 }
1986
1987 status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1988 if (!NT_STATUS_IS_OK(status)) {
1989 libnet_join_set_error_string(mem_ctx, r,
1990 "failed to lookup DC info for domain '%s' over rpc: %s",
1991 r->in.domain_name, get_friendly_nt_error_msg(status));
1992 return ntstatus_to_werror(status);
1993 }
1994
1995 werr = libnet_join_check_config(mem_ctx, r);
1996 if (!W_ERROR_IS_OK(werr)) {
1997 goto done;
1998 }
1999
2000 #ifdef HAVE_ADS
2001
2002 create_local_private_krb5_conf_for_domain(
2003 r->out.dns_domain_name, r->out.netbios_domain_name,
2004 NULL, &cli->dest_ss, cli->desthost);
2005
2006 if (r->out.domain_is_ad && r->in.account_ou &&
2007 !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
2008
2009 ads_status = libnet_join_connect_ads(mem_ctx, r);
2010 if (!ADS_ERR_OK(ads_status)) {
2011 return WERR_DEFAULT_JOIN_REQUIRED;
2012 }
2013
2014 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
2015 if (!ADS_ERR_OK(ads_status)) {
2016 libnet_join_set_error_string(mem_ctx, r,
2017 "failed to precreate account in ou %s: %s",
2018 r->in.account_ou,
2019 ads_errstr(ads_status));
2020 return WERR_DEFAULT_JOIN_REQUIRED;
2021 }
2022
2023 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
2024 }
2025 #endif /* HAVE_ADS */
2026
2027 if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
2028 (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
2029 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
2030 } else {
2031 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
2032 }
2033 if (!NT_STATUS_IS_OK(status)) {
2034 libnet_join_set_error_string(mem_ctx, r,
2035 "failed to join domain '%s' over rpc: %s",
2036 r->in.domain_name, get_friendly_nt_error_msg(status));
2037 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
2038 return WERR_SETUP_ALREADY_JOINED;
2039 }
2040 werr = ntstatus_to_werror(status);
2041 goto done;
2042 }
2043
2044 if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
2045 werr = WERR_SETUP_NOT_JOINED;
2046 goto done;
2047 }
2048
2049 werr = WERR_OK;
2050
2051 done:
2052 if (cli) {
2053 cli_shutdown(cli);
2054 }
2055
2056 return werr;
2057 }
2058
2059 /****************************************************************
2060 ****************************************************************/
2061
2062 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
2063 struct libnet_JoinCtx *r)
2064 {
2065 WERROR werr;
2066 struct libnet_UnjoinCtx *u = NULL;
2067
2068 werr = libnet_init_UnjoinCtx(mem_ctx, &u);
2069 if (!W_ERROR_IS_OK(werr)) {
2070 return werr;
2071 }
2072
2073 u->in.debug = r->in.debug;
2074 u->in.dc_name = r->in.dc_name;
2075 u->in.domain_name = r->in.domain_name;
2076 u->in.admin_account = r->in.admin_account;
2077 u->in.admin_password = r->in.admin_password;
2078 u->in.modify_config = r->in.modify_config;
2079 u->in.unjoin_flags = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
2080 WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
2081
2082 werr = libnet_Unjoin(mem_ctx, u);
2083 TALLOC_FREE(u);
2084
2085 return werr;
2086 }
2087
2088 /****************************************************************
2089 ****************************************************************/
2090
2091 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
2092 struct libnet_JoinCtx *r)
2093 {
2094 WERROR werr;
2095
2096 if (r->in.debug) {
2097 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
2098 }
2099
2100 ZERO_STRUCT(r->out);
2101
2102 werr = libnet_join_pre_processing(mem_ctx, r);
2103 if (!W_ERROR_IS_OK(werr)) {
2104 goto done;
2105 }
2106
2107 if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2108 werr = libnet_DomainJoin(mem_ctx, r);
2109 if (!W_ERROR_IS_OK(werr)) {
2110 goto done;
2111 }
2112 }
2113
2114 werr = libnet_join_post_processing(mem_ctx, r);
2115 if (!W_ERROR_IS_OK(werr)) {
2116 goto done;
2117 }
2118
2119 if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2120 werr = libnet_join_post_verify(mem_ctx, r);
2121 if (!W_ERROR_IS_OK(werr)) {
2122 libnet_join_rollback(mem_ctx, r);
2123 }
2124 }
2125
2126 done:
2127 r->out.result = werr;
2128
2129 if (r->in.debug) {
2130 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
2131 }
2132 return werr;
2133 }
2134
2135 /****************************************************************
2136 ****************************************************************/
2137
2138 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
2139 struct libnet_UnjoinCtx *r)
2140 {
2141 NTSTATUS status;
2142
2143 if (!r->in.domain_sid) {
2144 struct dom_sid sid;
2145 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2146 libnet_unjoin_set_error_string(mem_ctx, r,
2147 "Unable to fetch domain sid: are we joined?");
2148 return WERR_SETUP_NOT_JOINED;
2149 }
2150 r->in.domain_sid = dom_sid_dup(mem_ctx, &sid);
2151 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2152 }
2153
2154 if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2155 !r->in.delete_machine_account) {
2156 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2157 return WERR_OK;
2158 }
2159
2160 if (!r->in.dc_name) {
2161 struct netr_DsRGetDCNameInfo *info;
2162 const char *dc;
2163 status = dsgetdcname(mem_ctx,
2164 r->in.msg_ctx,
2165 r->in.domain_name,
2166 NULL,
2167 NULL,
2168 DS_DIRECTORY_SERVICE_REQUIRED |
2169 DS_WRITABLE_REQUIRED |
2170 DS_RETURN_DNS_NAME,
2171 &info);
2172 if (!NT_STATUS_IS_OK(status)) {
2173 libnet_unjoin_set_error_string(mem_ctx, r,
2174 "failed to find DC for domain %s",
2175 r->in.domain_name,
2176 get_friendly_nt_error_msg(status));
2177 return WERR_DCNOTFOUND;
2178 }
2179
2180 dc = strip_hostname(info->dc_unc);
2181 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2182 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2183 }
2184
2185 #ifdef HAVE_ADS
2186 /* for net ads leave, try to delete the account. If it works,
2187 no sense in disabling. If it fails, we can still try to
2188 disable it. jmcd */
2189
2190 if (r->in.delete_machine_account) {
2191 ADS_STATUS ads_status;
2192 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2193 if (ADS_ERR_OK(ads_status)) {
2194 /* dirty hack */
2195 r->out.dns_domain_name =
2196 talloc_strdup(mem_ctx,
2197 r->in.ads->server.realm);
2198 ads_status =
2199 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2200 }
2201 if (!ADS_ERR_OK(ads_status)) {
2202 libnet_unjoin_set_error_string(mem_ctx, r,
2203 "failed to remove machine account from AD: %s",
2204 ads_errstr(ads_status));
2205 } else {
2206 r->out.deleted_machine_account = true;
2207 W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2208 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2209 return WERR_OK;
2210 }
2211 }
2212 #endif /* HAVE_ADS */
2213
2214 /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2215 "disable". */
2216 if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2217 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2218 if (!NT_STATUS_IS_OK(status)) {
2219 libnet_unjoin_set_error_string(mem_ctx, r,
2220 "failed to disable machine account via rpc: %s",
2221 get_friendly_nt_error_msg(status));
2222 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2223 return WERR_SETUP_NOT_JOINED;
2224 }
2225 return ntstatus_to_werror(status);
2226 }
2227
2228 r->out.disabled_machine_account = true;
2229 }
2230
2231 /* If disable succeeded or was not requested at all, we
2232 should be getting rid of our end of things */
2233
2234 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2235
2236 return WERR_OK;
2237 }
2238
2239 /****************************************************************
2240 ****************************************************************/
2241
2242 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2243 struct libnet_UnjoinCtx *r)
2244 {
2245 if (!r->in.domain_name) {
2246 libnet_unjoin_set_error_string(mem_ctx, r,
2247 "No domain name defined");
2248 return WERR_INVALID_PARAM;
2249 }
2250
2251 if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2252 &r->in.domain_name,
2253 &r->in.dc_name)) {
2254 libnet_unjoin_set_error_string(mem_ctx, r,
2255 "Failed to parse domain name");
2256 return WERR_INVALID_PARAM;
2257 }
2258
2259 if (IS_DC) {
2260 return WERR_SETUP_DOMAIN_CONTROLLER;
2261 }
2262
2263 if (!secrets_init()) {
2264 libnet_unjoin_set_error_string(mem_ctx, r,
2265 "Unable to open secrets database");
2266 return WERR_CAN_NOT_COMPLETE;
2267 }
2268
2269 return WERR_OK;
2270 }
2271
2272 /****************************************************************
2273 ****************************************************************/
2274
2275 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2276 struct libnet_UnjoinCtx *r)
2277 {
2278 saf_delete(r->out.netbios_domain_name);
2279 saf_delete(r->out.dns_domain_name);
2280
2281 return libnet_unjoin_config(r);
2282 }
2283
2284 /****************************************************************
2285 ****************************************************************/
2286
2287 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2288 struct libnet_UnjoinCtx *r)
2289 {
2290 WERROR werr;
2291
2292 if (r->in.debug) {
2293 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2294 }
2295
2296 werr = libnet_unjoin_pre_processing(mem_ctx, r);
2297 if (!W_ERROR_IS_OK(werr)) {
2298 goto done;
2299 }
2300
2301 if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2302 werr = libnet_DomainUnjoin(mem_ctx, r);
2303 if (!W_ERROR_IS_OK(werr)) {
2304 libnet_unjoin_config(r);
2305 goto done;
2306 }
2307 }
2308
2309 werr = libnet_unjoin_post_processing(mem_ctx, r);
2310 if (!W_ERROR_IS_OK(werr)) {
2311 goto done;
2312 }
2313
2314 done:
2315 r->out.result = werr;
2316
2317 if (r->in.debug) {
2318 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2319 }
2320
2321 return werr;
2322 }
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