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CVE-2013-4408:s3:Ensure LookupNames replies arrays are range checked.
[Samba.git] / source3 / libnet / libnet_join.c
blob22e667518e656b1af23d013f1a71b3c915a8d352
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
44 /****************************************************************
45 ****************************************************************/
46
47 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
48 do { \
49 char *str = NULL; \
50 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
51 DEBUG(1,("libnet_Join:\n%s", str)); \
52 TALLOC_FREE(str); \
53 } while (0)
54
55 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
56 LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
57 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
58 LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
59
60 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
61 do { \
62 char *str = NULL; \
63 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
64 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
65 TALLOC_FREE(str); \
66 } while (0)
67
68 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
69 LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
70 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
71 LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
72
73 /****************************************************************
74 ****************************************************************/
75
76 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
77 struct libnet_JoinCtx *r,
78 const char *format, ...)
79 {
80 va_list args;
81
82 if (r->out.error_string) {
83 return;
84 }
85
86 va_start(args, format);
87 r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
88 va_end(args);
89 }
90
91 /****************************************************************
92 ****************************************************************/
93
94 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
95 struct libnet_UnjoinCtx *r,
96 const char *format, ...)
97 {
98 va_list args;
99
100 if (r->out.error_string) {
101 return;
102 }
103
104 va_start(args, format);
105 r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
106 va_end(args);
107 }
108
109 #ifdef HAVE_ADS
110
111 /****************************************************************
112 ****************************************************************/
113
114 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
115 const char *netbios_domain_name,
116 const char *dc_name,
117 const char *user_name,
118 const char *password,
119 ADS_STRUCT **ads)
120 {
121 ADS_STATUS status;
122 ADS_STRUCT *my_ads = NULL;
123 char *cp;
124
125 my_ads = ads_init(dns_domain_name,
126 netbios_domain_name,
127 dc_name);
128 if (!my_ads) {
129 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
130 }
131
132 if (user_name) {
133 SAFE_FREE(my_ads->auth.user_name);
134 my_ads->auth.user_name = SMB_STRDUP(user_name);
135 if ((cp = strchr_m(my_ads->auth.user_name, '@'))!=0) {
136 *cp++ = '\0';
137 SAFE_FREE(my_ads->auth.realm);
138 my_ads->auth.realm = smb_xstrdup(cp);
139 if (!strupper_m(my_ads->auth.realm)) {
140 ads_destroy(&my_ads);
141 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
142 }
143 }
144 }
145
146 if (password) {
147 SAFE_FREE(my_ads->auth.password);
148 my_ads->auth.password = SMB_STRDUP(password);
149 }
150
151 status = ads_connect_user_creds(my_ads);
152 if (!ADS_ERR_OK(status)) {
153 ads_destroy(&my_ads);
154 return status;
155 }
156
157 *ads = my_ads;
158 return ADS_SUCCESS;
159 }
160
161 /****************************************************************
162 ****************************************************************/
163
164 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
165 struct libnet_JoinCtx *r)
166 {
167 ADS_STATUS status;
168
169 status = libnet_connect_ads(r->out.dns_domain_name,
170 r->out.netbios_domain_name,
171 r->in.dc_name,
172 r->in.admin_account,
173 r->in.admin_password,
174 &r->in.ads);
175 if (!ADS_ERR_OK(status)) {
176 libnet_join_set_error_string(mem_ctx, r,
177 "failed to connect to AD: %s",
178 ads_errstr(status));
179 return status;
180 }
181
182 if (!r->out.netbios_domain_name) {
183 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
184 r->in.ads->server.workgroup);
185 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
186 }
187
188 if (!r->out.dns_domain_name) {
189 r->out.dns_domain_name = talloc_strdup(mem_ctx,
190 r->in.ads->config.realm);
191 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
192 }
193
194 r->out.domain_is_ad = true;
195
196 return ADS_SUCCESS;
197 }
198
199 /****************************************************************
200 ****************************************************************/
201
202 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
203 struct libnet_UnjoinCtx *r)
204 {
205 ADS_STATUS status;
206
207 status = libnet_connect_ads(r->in.domain_name,
208 r->in.domain_name,
209 r->in.dc_name,
210 r->in.admin_account,
211 r->in.admin_password,
212 &r->in.ads);
213 if (!ADS_ERR_OK(status)) {
214 libnet_unjoin_set_error_string(mem_ctx, r,
215 "failed to connect to AD: %s",
216 ads_errstr(status));
217 }
218
219 return status;
220 }
221
222 /****************************************************************
223 join a domain using ADS (LDAP mods)
224 ****************************************************************/
225
226 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
227 struct libnet_JoinCtx *r)
228 {
229 ADS_STATUS status;
230 LDAPMessage *res = NULL;
231 const char *attrs[] = { "dn", NULL };
232 bool moved = false;
233
234 status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
235 if (!ADS_ERR_OK(status)) {
236 return status;
237 }
238
239 status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
240 if (!ADS_ERR_OK(status)) {
241 return status;
242 }
243
244 if (ads_count_replies(r->in.ads, res) != 1) {
245 ads_msgfree(r->in.ads, res);
246 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
247 }
248
249 ads_msgfree(r->in.ads, res);
250
251 /* Attempt to create the machine account and bail if this fails.
252 Assume that the admin wants exactly what they requested */
253
254 status = ads_create_machine_acct(r->in.ads,
255 r->in.machine_name,
256 r->in.account_ou);
257
258 if (ADS_ERR_OK(status)) {
259 DEBUG(1,("machine account creation created\n"));
260 return status;
261 } else if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
262 (status.err.rc == LDAP_ALREADY_EXISTS)) {
263 status = ADS_SUCCESS;
264 }
265
266 if (!ADS_ERR_OK(status)) {
267 DEBUG(1,("machine account creation failed\n"));
268 return status;
269 }
270
271 status = ads_move_machine_acct(r->in.ads,
272 r->in.machine_name,
273 r->in.account_ou,
274 &moved);
275 if (!ADS_ERR_OK(status)) {
276 DEBUG(1,("failure to locate/move pre-existing "
277 "machine account\n"));
278 return status;
279 }
280
281 DEBUG(1,("The machine account %s the specified OU.\n",
282 moved ? "was moved into" : "already exists in"));
283
284 return status;
285 }
286
287 /****************************************************************
288 ****************************************************************/
289
290 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
291 struct libnet_UnjoinCtx *r)
292 {
293 ADS_STATUS status;
294
295 if (!r->in.ads) {
296 status = libnet_unjoin_connect_ads(mem_ctx, r);
297 if (!ADS_ERR_OK(status)) {
298 libnet_unjoin_set_error_string(mem_ctx, r,
299 "failed to connect to AD: %s",
300 ads_errstr(status));
301 return status;
302 }
303 }
304
305 status = ads_leave_realm(r->in.ads, r->in.machine_name);
306 if (!ADS_ERR_OK(status)) {
307 libnet_unjoin_set_error_string(mem_ctx, r,
308 "failed to leave realm: %s",
309 ads_errstr(status));
310 return status;
311 }
312
313 return ADS_SUCCESS;
314 }
315
316 /****************************************************************
317 ****************************************************************/
318
319 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
320 struct libnet_JoinCtx *r)
321 {
322 ADS_STATUS status;
323 LDAPMessage *res = NULL;
324 char *dn = NULL;
325
326 if (!r->in.machine_name) {
327 return ADS_ERROR(LDAP_NO_MEMORY);
328 }
329
330 status = ads_find_machine_acct(r->in.ads,
331 &res,
332 r->in.machine_name);
333 if (!ADS_ERR_OK(status)) {
334 return status;
335 }
336
337 if (ads_count_replies(r->in.ads, res) != 1) {
338 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
339 goto done;
340 }
341
342 dn = ads_get_dn(r->in.ads, mem_ctx, res);
343 if (!dn) {
344 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
345 goto done;
346 }
347
348 r->out.dn = talloc_strdup(mem_ctx, dn);
349 if (!r->out.dn) {
350 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
351 goto done;
352 }
353
354 done:
355 ads_msgfree(r->in.ads, res);
356 TALLOC_FREE(dn);
357
358 return status;
359 }
360
361 /****************************************************************
362 Set a machines dNSHostName and servicePrincipalName attributes
363 ****************************************************************/
364
365 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
366 struct libnet_JoinCtx *r)
367 {
368 ADS_STATUS status;
369 ADS_MODLIST mods;
370 fstring my_fqdn;
371 const char *spn_array[3] = {NULL, NULL, NULL};
372 char *spn = NULL;
373
374 /* Find our DN */
375
376 status = libnet_join_find_machine_acct(mem_ctx, r);
377 if (!ADS_ERR_OK(status)) {
378 return status;
379 }
380
381 /* Windows only creates HOST/shortname & HOST/fqdn. */
382
383 spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
384 if (!spn) {
385 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
386 }
387 if (!strupper_m(spn)) {
388 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
389 }
390 spn_array[0] = spn;
391
392 if (!name_to_fqdn(my_fqdn, r->in.machine_name)
393 || (strchr(my_fqdn, '.') == NULL)) {
394 fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
395 r->out.dns_domain_name);
396 }
397
398 if (!strlower_m(my_fqdn)) {
399 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
400 }
401
402 if (!strequal(my_fqdn, r->in.machine_name)) {
403 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
404 if (!spn) {
405 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
406 }
407 spn_array[1] = spn;
408 }
409
410 mods = ads_init_mods(mem_ctx);
411 if (!mods) {
412 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
413 }
414
415 /* fields of primary importance */
416
417 status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
418 if (!ADS_ERR_OK(status)) {
419 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
420 }
421
422 status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
423 spn_array);
424 if (!ADS_ERR_OK(status)) {
425 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
426 }
427
428 return ads_gen_mod(r->in.ads, r->out.dn, mods);
429 }
430
431 /****************************************************************
432 ****************************************************************/
433
434 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
435 struct libnet_JoinCtx *r)
436 {
437 ADS_STATUS status;
438 ADS_MODLIST mods;
439
440 if (!r->in.create_upn) {
441 return ADS_SUCCESS;
442 }
443
444 /* Find our DN */
445
446 status = libnet_join_find_machine_acct(mem_ctx, r);
447 if (!ADS_ERR_OK(status)) {
448 return status;
449 }
450
451 if (!r->in.upn) {
452 r->in.upn = talloc_asprintf(mem_ctx,
453 "host/%s@%s",
454 r->in.machine_name,
455 r->out.dns_domain_name);
456 if (!r->in.upn) {
457 return ADS_ERROR(LDAP_NO_MEMORY);
458 }
459 }
460
461 /* now do the mods */
462
463 mods = ads_init_mods(mem_ctx);
464 if (!mods) {
465 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
466 }
467
468 /* fields of primary importance */
469
470 status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
471 if (!ADS_ERR_OK(status)) {
472 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
473 }
474
475 return ads_gen_mod(r->in.ads, r->out.dn, mods);
476 }
477
478
479 /****************************************************************
480 ****************************************************************/
481
482 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
483 struct libnet_JoinCtx *r)
484 {
485 ADS_STATUS status;
486 ADS_MODLIST mods;
487 char *os_sp = NULL;
488
489 if (!r->in.os_name || !r->in.os_version ) {
490 return ADS_SUCCESS;
491 }
492
493 /* Find our DN */
494
495 status = libnet_join_find_machine_acct(mem_ctx, r);
496 if (!ADS_ERR_OK(status)) {
497 return status;
498 }
499
500 /* now do the mods */
501
502 mods = ads_init_mods(mem_ctx);
503 if (!mods) {
504 return ADS_ERROR(LDAP_NO_MEMORY);
505 }
506
507 os_sp = talloc_asprintf(mem_ctx, "Samba %s", samba_version_string());
508 if (!os_sp) {
509 return ADS_ERROR(LDAP_NO_MEMORY);
510 }
511
512 /* fields of primary importance */
513
514 status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
515 r->in.os_name);
516 if (!ADS_ERR_OK(status)) {
517 return status;
518 }
519
520 status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
521 r->in.os_version);
522 if (!ADS_ERR_OK(status)) {
523 return status;
524 }
525
526 status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
527 os_sp);
528 if (!ADS_ERR_OK(status)) {
529 return status;
530 }
531
532 return ads_gen_mod(r->in.ads, r->out.dn, mods);
533 }
534
535 /****************************************************************
536 ****************************************************************/
537
538 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
539 struct libnet_JoinCtx *r)
540 {
541 if (!USE_SYSTEM_KEYTAB) {
542 return true;
543 }
544
545 if (ads_keytab_create_default(r->in.ads) != 0) {
546 return false;
547 }
548
549 return true;
550 }
551
552 /****************************************************************
553 ****************************************************************/
554
555 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
556 struct libnet_JoinCtx *r)
557 {
558 uint32_t domain_func;
559 ADS_STATUS status;
560 const char *salt = NULL;
561 char *std_salt = NULL;
562
563 status = ads_domain_func_level(r->in.ads, &domain_func);
564 if (!ADS_ERR_OK(status)) {
565 libnet_join_set_error_string(mem_ctx, r,
566 "failed to determine domain functional level: %s",
567 ads_errstr(status));
568 return false;
569 }
570
571 /* go ahead and setup the default salt */
572
573 std_salt = kerberos_standard_des_salt();
574 if (!std_salt) {
575 libnet_join_set_error_string(mem_ctx, r,
576 "failed to obtain standard DES salt");
577 return false;
578 }
579
580 salt = talloc_strdup(mem_ctx, std_salt);
581 if (!salt) {
582 return false;
583 }
584
585 SAFE_FREE(std_salt);
586
587 /* if it's a Windows functional domain, we have to look for the UPN */
588
589 if (domain_func == DS_DOMAIN_FUNCTION_2000) {
590 char *upn;
591
592 upn = ads_get_upn(r->in.ads, mem_ctx,
593 r->in.machine_name);
594 if (upn) {
595 salt = talloc_strdup(mem_ctx, upn);
596 if (!salt) {
597 return false;
598 }
599 }
600 }
601
602 return kerberos_secrets_store_des_salt(salt);
603 }
604
605 /****************************************************************
606 ****************************************************************/
607
608 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
609 struct libnet_JoinCtx *r)
610 {
611 ADS_STATUS status;
612
613 if (!r->in.ads) {
614 status = libnet_join_connect_ads(mem_ctx, r);
615 if (!ADS_ERR_OK(status)) {
616 return status;
617 }
618 }
619
620 status = libnet_join_set_machine_spn(mem_ctx, r);
621 if (!ADS_ERR_OK(status)) {
622 libnet_join_set_error_string(mem_ctx, r,
623 "failed to set machine spn: %s",
624 ads_errstr(status));
625 return status;
626 }
627
628 status = libnet_join_set_os_attributes(mem_ctx, r);
629 if (!ADS_ERR_OK(status)) {
630 libnet_join_set_error_string(mem_ctx, r,
631 "failed to set machine os attributes: %s",
632 ads_errstr(status));
633 return status;
634 }
635
636 status = libnet_join_set_machine_upn(mem_ctx, r);
637 if (!ADS_ERR_OK(status)) {
638 libnet_join_set_error_string(mem_ctx, r,
639 "failed to set machine upn: %s",
640 ads_errstr(status));
641 return status;
642 }
643
644 if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
645 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
646 }
647
648 if (!libnet_join_create_keytab(mem_ctx, r)) {
649 libnet_join_set_error_string(mem_ctx, r,
650 "failed to create kerberos keytab");
651 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
652 }
653
654 return ADS_SUCCESS;
655 }
656 #endif /* HAVE_ADS */
657
658 /****************************************************************
659 Store the machine password and domain SID
660 ****************************************************************/
661
662 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
663 struct libnet_JoinCtx *r)
664 {
665 if (!secrets_store_domain_sid(r->out.netbios_domain_name,
666 r->out.domain_sid))
667 {
668 DEBUG(1,("Failed to save domain sid\n"));
669 return false;
670 }
671
672 if (!secrets_store_machine_password(r->in.machine_password,
673 r->out.netbios_domain_name,
674 r->in.secure_channel_type))
675 {
676 DEBUG(1,("Failed to save machine password\n"));
677 return false;
678 }
679
680 return true;
681 }
682
683 /****************************************************************
684 Connect dc's IPC$ share
685 ****************************************************************/
686
687 static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
688 const char *user,
689 const char *pass,
690 bool use_kerberos,
691 struct cli_state **cli)
692 {
693 int flags = 0;
694
695 if (use_kerberos) {
696 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
697 }
698
699 if (use_kerberos && pass) {
700 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
701 }
702
703 return cli_full_connection(cli, NULL,
704 dc,
705 NULL, 0,
706 "IPC$", "IPC",
707 user,
708 NULL,
709 pass,
710 flags,
711 SMB_SIGNING_DEFAULT);
712 }
713
714 /****************************************************************
715 Lookup domain dc's info
716 ****************************************************************/
717
718 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
719 struct libnet_JoinCtx *r,
720 struct cli_state **cli)
721 {
722 struct rpc_pipe_client *pipe_hnd = NULL;
723 struct policy_handle lsa_pol;
724 NTSTATUS status, result;
725 union lsa_PolicyInformation *info = NULL;
726 struct dcerpc_binding_handle *b;
727
728 status = libnet_join_connect_dc_ipc(r->in.dc_name,
729 r->in.admin_account,
730 r->in.admin_password,
731 r->in.use_kerberos,
732 cli);
733 if (!NT_STATUS_IS_OK(status)) {
734 goto done;
735 }
736
737 status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc.syntax_id,
738 &pipe_hnd);
739 if (!NT_STATUS_IS_OK(status)) {
740 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
741 nt_errstr(status)));
742 goto done;
743 }
744
745 b = pipe_hnd->binding_handle;
746
747 status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
748 SEC_FLAG_MAXIMUM_ALLOWED, &lsa_pol);
749 if (!NT_STATUS_IS_OK(status)) {
750 goto done;
751 }
752
753 status = dcerpc_lsa_QueryInfoPolicy2(b, mem_ctx,
754 &lsa_pol,
755 LSA_POLICY_INFO_DNS,
756 &info,
757 &result);
758 if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
759 r->out.domain_is_ad = true;
760 r->out.netbios_domain_name = info->dns.name.string;
761 r->out.dns_domain_name = info->dns.dns_domain.string;
762 r->out.forest_name = info->dns.dns_forest.string;
763 r->out.domain_sid = dom_sid_dup(mem_ctx, info->dns.sid);
764 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
765 }
766
767 if (!NT_STATUS_IS_OK(status)) {
768 status = dcerpc_lsa_QueryInfoPolicy(b, mem_ctx,
769 &lsa_pol,
770 LSA_POLICY_INFO_ACCOUNT_DOMAIN,
771 &info,
772 &result);
773 if (!NT_STATUS_IS_OK(status)) {
774 goto done;
775 }
776 if (!NT_STATUS_IS_OK(result)) {
777 status = result;
778 goto done;
779 }
780
781 r->out.netbios_domain_name = info->account_domain.name.string;
782 r->out.domain_sid = dom_sid_dup(mem_ctx, info->account_domain.sid);
783 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
784 }
785
786 dcerpc_lsa_Close(b, mem_ctx, &lsa_pol, &result);
787 TALLOC_FREE(pipe_hnd);
788
789 done:
790 return status;
791 }
792
793 /****************************************************************
794 Do the domain join unsecure
795 ****************************************************************/
796
797 static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
798 struct libnet_JoinCtx *r,
799 struct cli_state *cli)
800 {
801 struct rpc_pipe_client *pipe_hnd = NULL;
802 unsigned char orig_trust_passwd_hash[16];
803 unsigned char new_trust_passwd_hash[16];
804 fstring trust_passwd;
805 NTSTATUS status;
806
807 status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon.syntax_id,
808 &pipe_hnd);
809 if (!NT_STATUS_IS_OK(status)) {
810 return status;
811 }
812
813 if (!r->in.machine_password) {
814 r->in.machine_password = generate_random_password(mem_ctx,
815 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH,
816 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
817 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
818 }
819
820 E_md4hash(r->in.machine_password, new_trust_passwd_hash);
821
822 /* according to WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED */
823 fstrcpy(trust_passwd, r->in.admin_password);
824 if (!strlower_m(trust_passwd)) {
825 return NT_STATUS_INVALID_PARAMETER;
826 }
827
828 /*
829 * Machine names can be 15 characters, but the max length on
830 * a password is 14. --jerry
831 */
832
833 trust_passwd[14] = '\0';
834
835 E_md4hash(trust_passwd, orig_trust_passwd_hash);
836
837 status = rpccli_netlogon_set_trust_password(pipe_hnd, mem_ctx,
838 r->in.machine_name,
839 orig_trust_passwd_hash,
840 r->in.machine_password,
841 new_trust_passwd_hash,
842 r->in.secure_channel_type);
843
844 return status;
845 }
846
847 /****************************************************************
848 Do the domain join
849 ****************************************************************/
850
851 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
852 struct libnet_JoinCtx *r,
853 struct cli_state *cli)
854 {
855 struct rpc_pipe_client *pipe_hnd = NULL;
856 struct policy_handle sam_pol, domain_pol, user_pol;
857 NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
858 char *acct_name;
859 struct lsa_String lsa_acct_name;
860 uint32_t user_rid;
861 uint32_t acct_flags = ACB_WSTRUST;
862 struct samr_Ids user_rids;
863 struct samr_Ids name_types;
864 union samr_UserInfo user_info;
865 struct dcerpc_binding_handle *b = NULL;
866
867 DATA_BLOB session_key = data_blob_null;
868 struct samr_CryptPassword crypt_pwd;
869 struct samr_CryptPasswordEx crypt_pwd_ex;
870
871 ZERO_STRUCT(sam_pol);
872 ZERO_STRUCT(domain_pol);
873 ZERO_STRUCT(user_pol);
874
875 switch (r->in.secure_channel_type) {
876 case SEC_CHAN_WKSTA:
877 acct_flags = ACB_WSTRUST;
878 break;
879 case SEC_CHAN_BDC:
880 acct_flags = ACB_SVRTRUST;
881 break;
882 default:
883 return NT_STATUS_INVALID_PARAMETER;
884 }
885
886 if (!r->in.machine_password) {
887 r->in.machine_password = generate_random_password(mem_ctx,
888 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH,
889 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
890 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
891 }
892
893 /* Open the domain */
894
895 status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
896 &pipe_hnd);
897 if (!NT_STATUS_IS_OK(status)) {
898 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
899 nt_errstr(status)));
900 goto done;
901 }
902
903 b = pipe_hnd->binding_handle;
904
905 status = cli_get_session_key(mem_ctx, pipe_hnd, &session_key);
906 if (!NT_STATUS_IS_OK(status)) {
907 DEBUG(0,("Error getting session_key of SAM pipe. Error was %s\n",
908 nt_errstr(status)));
909 goto done;
910 }
911
912 status = dcerpc_samr_Connect2(b, mem_ctx,
913 pipe_hnd->desthost,
914 SAMR_ACCESS_ENUM_DOMAINS
915 | SAMR_ACCESS_LOOKUP_DOMAIN,
916 &sam_pol,
917 &result);
918 if (!NT_STATUS_IS_OK(status)) {
919 goto done;
920 }
921 if (!NT_STATUS_IS_OK(result)) {
922 status = result;
923 goto done;
924 }
925
926 status = dcerpc_samr_OpenDomain(b, mem_ctx,
927 &sam_pol,
928 SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
929 | SAMR_DOMAIN_ACCESS_CREATE_USER
930 | SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
931 r->out.domain_sid,
932 &domain_pol,
933 &result);
934 if (!NT_STATUS_IS_OK(status)) {
935 goto done;
936 }
937 if (!NT_STATUS_IS_OK(result)) {
938 status = result;
939 goto done;
940 }
941
942 /* Create domain user */
943
944 acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
945 if (!strlower_m(acct_name)) {
946 status = NT_STATUS_INVALID_PARAMETER;
947 goto done;
948 }
949
950 init_lsa_String(&lsa_acct_name, acct_name);
951
952 if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
953 uint32_t access_desired =
954 SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
955 SEC_STD_WRITE_DAC | SEC_STD_DELETE |
956 SAMR_USER_ACCESS_SET_PASSWORD |
957 SAMR_USER_ACCESS_GET_ATTRIBUTES |
958 SAMR_USER_ACCESS_SET_ATTRIBUTES;
959 uint32_t access_granted = 0;
960
961 DEBUG(10,("Creating account with desired access mask: %d\n",
962 access_desired));
963
964 status = dcerpc_samr_CreateUser2(b, mem_ctx,
965 &domain_pol,
966 &lsa_acct_name,
967 acct_flags,
968 access_desired,
969 &user_pol,
970 &access_granted,
971 &user_rid,
972 &result);
973 if (!NT_STATUS_IS_OK(status)) {
974 goto done;
975 }
976
977 status = result;
978 if (!NT_STATUS_IS_OK(status) &&
979 !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
980
981 DEBUG(10,("Creation of workstation account failed: %s\n",
982 nt_errstr(status)));
983
984 /* If NT_STATUS_ACCESS_DENIED then we have a valid
985 username/password combo but the user does not have
986 administrator access. */
987
988 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
989 libnet_join_set_error_string(mem_ctx, r,
990 "User specified does not have "
991 "administrator privileges");
992 }
993
994 goto done;
995 }
996
997 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
998 if (!(r->in.join_flags &
999 WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
1000 goto done;
1001 }
1002 }
1003
1004 /* We *must* do this.... don't ask... */
1005
1006 if (NT_STATUS_IS_OK(status)) {
1007 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1008 }
1009 }
1010
1011 status = dcerpc_samr_LookupNames(b, mem_ctx,
1012 &domain_pol,
1013 1,
1014 &lsa_acct_name,
1015 &user_rids,
1016 &name_types,
1017 &result);
1018 if (!NT_STATUS_IS_OK(status)) {
1019 goto done;
1020 }
1021 if (!NT_STATUS_IS_OK(result)) {
1022 status = result;
1023 goto done;
1024 }
1025 if (user_rids.count != 1) {
1026 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1027 goto done;
1028 }
1029 if (name_types.count != 1) {
1030 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1031 goto done;
1032 }
1033
1034 if (name_types.ids[0] != SID_NAME_USER) {
1035 DEBUG(0,("%s is not a user account (type=%d)\n",
1036 acct_name, name_types.ids[0]));
1037 status = NT_STATUS_INVALID_WORKSTATION;
1038 goto done;
1039 }
1040
1041 user_rid = user_rids.ids[0];
1042
1043 /* Open handle on user */
1044
1045 status = dcerpc_samr_OpenUser(b, mem_ctx,
1046 &domain_pol,
1047 SEC_FLAG_MAXIMUM_ALLOWED,
1048 user_rid,
1049 &user_pol,
1050 &result);
1051 if (!NT_STATUS_IS_OK(status)) {
1052 goto done;
1053 }
1054 if (!NT_STATUS_IS_OK(result)) {
1055 status = result;
1056 goto done;
1057 }
1058
1059 /* Fill in the additional account flags now */
1060
1061 acct_flags |= ACB_PWNOEXP;
1062
1063 /* Set account flags on machine account */
1064 ZERO_STRUCT(user_info.info16);
1065 user_info.info16.acct_flags = acct_flags;
1066
1067 status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1068 &user_pol,
1069 16,
1070 &user_info,
1071 &result);
1072 if (!NT_STATUS_IS_OK(status)) {
1073 dcerpc_samr_DeleteUser(b, mem_ctx,
1074 &user_pol,
1075 &result);
1076
1077 libnet_join_set_error_string(mem_ctx, r,
1078 "Failed to set account flags for machine account (%s)\n",
1079 nt_errstr(status));
1080 goto done;
1081 }
1082
1083 if (!NT_STATUS_IS_OK(result)) {
1084 status = result;
1085
1086 dcerpc_samr_DeleteUser(b, mem_ctx,
1087 &user_pol,
1088 &result);
1089
1090 libnet_join_set_error_string(mem_ctx, r,
1091 "Failed to set account flags for machine account (%s)\n",
1092 nt_errstr(status));
1093 goto done;
1094 }
1095
1096 /* Set password on machine account - first try level 26 */
1097
1098 init_samr_CryptPasswordEx(r->in.machine_password,
1099 &session_key,
1100 &crypt_pwd_ex);
1101
1102 user_info.info26.password = crypt_pwd_ex;
1103 user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1104
1105 status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1106 &user_pol,
1107 26,
1108 &user_info,
1109 &result);
1110
1111 if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE)) {
1112
1113 /* retry with level 24 */
1114
1115 init_samr_CryptPassword(r->in.machine_password,
1116 &session_key,
1117 &crypt_pwd);
1118
1119 user_info.info24.password = crypt_pwd;
1120 user_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1121
1122 status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1123 &user_pol,
1124 24,
1125 &user_info,
1126 &result);
1127 }
1128
1129 if (!NT_STATUS_IS_OK(status)) {
1130
1131 dcerpc_samr_DeleteUser(b, mem_ctx,
1132 &user_pol,
1133 &result);
1134
1135 libnet_join_set_error_string(mem_ctx, r,
1136 "Failed to set password for machine account (%s)\n",
1137 nt_errstr(status));
1138 goto done;
1139 }
1140 if (!NT_STATUS_IS_OK(result)) {
1141 status = result;
1142
1143 dcerpc_samr_DeleteUser(b, mem_ctx,
1144 &user_pol,
1145 &result);
1146
1147 libnet_join_set_error_string(mem_ctx, r,
1148 "Failed to set password for machine account (%s)\n",
1149 nt_errstr(status));
1150 goto done;
1151 }
1152
1153 status = NT_STATUS_OK;
1154
1155 done:
1156 if (!pipe_hnd) {
1157 return status;
1158 }
1159
1160 data_blob_clear_free(&session_key);
1161
1162 if (is_valid_policy_hnd(&sam_pol)) {
1163 dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1164 }
1165 if (is_valid_policy_hnd(&domain_pol)) {
1166 dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1167 }
1168 if (is_valid_policy_hnd(&user_pol)) {
1169 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1170 }
1171 TALLOC_FREE(pipe_hnd);
1172
1173 return status;
1174 }
1175
1176 /****************************************************************
1177 ****************************************************************/
1178
1179 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
1180 const char *machine_name,
1181 const char *dc_name,
1182 const bool use_kerberos)
1183 {
1184 uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
1185 struct cli_state *cli = NULL;
1186 struct rpc_pipe_client *pipe_hnd = NULL;
1187 struct rpc_pipe_client *netlogon_pipe = NULL;
1188 NTSTATUS status;
1189 char *machine_password = NULL;
1190 char *machine_account = NULL;
1191 int flags = 0;
1192
1193 if (!dc_name) {
1194 return NT_STATUS_INVALID_PARAMETER;
1195 }
1196
1197 if (!secrets_init()) {
1198 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1199 }
1200
1201 machine_password = secrets_fetch_machine_password(netbios_domain_name,
1202 NULL, NULL);
1203 if (!machine_password) {
1204 return NT_STATUS_NO_TRUST_LSA_SECRET;
1205 }
1206
1207 if (asprintf(&machine_account, "%s$", machine_name) == -1) {
1208 SAFE_FREE(machine_password);
1209 return NT_STATUS_NO_MEMORY;
1210 }
1211
1212 if (use_kerberos) {
1213 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
1214 }
1215
1216 status = cli_full_connection(&cli, NULL,
1217 dc_name,
1218 NULL, 0,
1219 "IPC$", "IPC",
1220 machine_account,
1221 NULL,
1222 machine_password,
1223 flags,
1224 SMB_SIGNING_DEFAULT);
1225 free(machine_account);
1226 free(machine_password);
1227
1228 if (!NT_STATUS_IS_OK(status)) {
1229 status = cli_full_connection(&cli, NULL,
1230 dc_name,
1231 NULL, 0,
1232 "IPC$", "IPC",
1233 "",
1234 NULL,
1235 "",
1236 0,
1237 SMB_SIGNING_DEFAULT);
1238 }
1239
1240 if (!NT_STATUS_IS_OK(status)) {
1241 return status;
1242 }
1243
1244 status = get_schannel_session_key(cli, netbios_domain_name,
1245 &neg_flags, &netlogon_pipe);
1246 if (!NT_STATUS_IS_OK(status)) {
1247 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
1248 cli_shutdown(cli);
1249 return NT_STATUS_OK;
1250 }
1251
1252 DEBUG(0,("libnet_join_ok: failed to get schannel session "
1253 "key from server %s for domain %s. Error was %s\n",
1254 smbXcli_conn_remote_name(cli->conn),
1255 netbios_domain_name, nt_errstr(status)));
1256 cli_shutdown(cli);
1257 return status;
1258 }
1259
1260 if (!lp_client_schannel()) {
1261 cli_shutdown(cli);
1262 return NT_STATUS_OK;
1263 }
1264
1265 status = cli_rpc_pipe_open_schannel_with_key(
1266 cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
1267 DCERPC_AUTH_LEVEL_PRIVACY,
1268 netbios_domain_name, &netlogon_pipe->dc, &pipe_hnd);
1269
1270 cli_shutdown(cli);
1271
1272 if (!NT_STATUS_IS_OK(status)) {
1273 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1274 "on netlogon pipe to server %s for domain %s. "
1275 "Error was %s\n",
1276 smbXcli_conn_remote_name(cli->conn),
1277 netbios_domain_name, nt_errstr(status)));
1278 return status;
1279 }
1280
1281 return NT_STATUS_OK;
1282 }
1283
1284 /****************************************************************
1285 ****************************************************************/
1286
1287 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1288 struct libnet_JoinCtx *r)
1289 {
1290 NTSTATUS status;
1291
1292 status = libnet_join_ok(r->out.netbios_domain_name,
1293 r->in.machine_name,
1294 r->in.dc_name,
1295 r->in.use_kerberos);
1296 if (!NT_STATUS_IS_OK(status)) {
1297 libnet_join_set_error_string(mem_ctx, r,
1298 "failed to verify domain membership after joining: %s",
1299 get_friendly_nt_error_msg(status));
1300 return WERR_SETUP_NOT_JOINED;
1301 }
1302
1303 return WERR_OK;
1304 }
1305
1306 /****************************************************************
1307 ****************************************************************/
1308
1309 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1310 struct libnet_UnjoinCtx *r)
1311 {
1312 if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1313 return false;
1314 }
1315
1316 if (!secrets_delete_domain_sid(lp_workgroup())) {
1317 return false;
1318 }
1319
1320 return true;
1321 }
1322
1323 /****************************************************************
1324 ****************************************************************/
1325
1326 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1327 struct libnet_UnjoinCtx *r)
1328 {
1329 struct cli_state *cli = NULL;
1330 struct rpc_pipe_client *pipe_hnd = NULL;
1331 struct policy_handle sam_pol, domain_pol, user_pol;
1332 NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
1333 char *acct_name;
1334 uint32_t user_rid;
1335 struct lsa_String lsa_acct_name;
1336 struct samr_Ids user_rids;
1337 struct samr_Ids name_types;
1338 union samr_UserInfo *info = NULL;
1339 struct dcerpc_binding_handle *b = NULL;
1340
1341 ZERO_STRUCT(sam_pol);
1342 ZERO_STRUCT(domain_pol);
1343 ZERO_STRUCT(user_pol);
1344
1345 status = libnet_join_connect_dc_ipc(r->in.dc_name,
1346 r->in.admin_account,
1347 r->in.admin_password,
1348 r->in.use_kerberos,
1349 &cli);
1350 if (!NT_STATUS_IS_OK(status)) {
1351 goto done;
1352 }
1353
1354 /* Open the domain */
1355
1356 status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
1357 &pipe_hnd);
1358 if (!NT_STATUS_IS_OK(status)) {
1359 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1360 nt_errstr(status)));
1361 goto done;
1362 }
1363
1364 b = pipe_hnd->binding_handle;
1365
1366 status = dcerpc_samr_Connect2(b, mem_ctx,
1367 pipe_hnd->desthost,
1368 SEC_FLAG_MAXIMUM_ALLOWED,
1369 &sam_pol,
1370 &result);
1371 if (!NT_STATUS_IS_OK(status)) {
1372 goto done;
1373 }
1374 if (!NT_STATUS_IS_OK(result)) {
1375 status = result;
1376 goto done;
1377 }
1378
1379 status = dcerpc_samr_OpenDomain(b, mem_ctx,
1380 &sam_pol,
1381 SEC_FLAG_MAXIMUM_ALLOWED,
1382 r->in.domain_sid,
1383 &domain_pol,
1384 &result);
1385 if (!NT_STATUS_IS_OK(status)) {
1386 goto done;
1387 }
1388 if (!NT_STATUS_IS_OK(result)) {
1389 status = result;
1390 goto done;
1391 }
1392
1393 /* Create domain user */
1394
1395 acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1396 if (!strlower_m(acct_name)) {
1397 status = NT_STATUS_INVALID_PARAMETER;
1398 goto done;
1399 }
1400
1401 init_lsa_String(&lsa_acct_name, acct_name);
1402
1403 status = dcerpc_samr_LookupNames(b, mem_ctx,
1404 &domain_pol,
1405 1,
1406 &lsa_acct_name,
1407 &user_rids,
1408 &name_types,
1409 &result);
1410
1411 if (!NT_STATUS_IS_OK(status)) {
1412 goto done;
1413 }
1414 if (!NT_STATUS_IS_OK(result)) {
1415 status = result;
1416 goto done;
1417 }
1418 if (user_rids.count != 1) {
1419 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1420 goto done;
1421 }
1422 if (name_types.count != 1) {
1423 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1424 goto done;
1425 }
1426
1427 if (name_types.ids[0] != SID_NAME_USER) {
1428 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1429 name_types.ids[0]));
1430 status = NT_STATUS_INVALID_WORKSTATION;
1431 goto done;
1432 }
1433
1434 user_rid = user_rids.ids[0];
1435
1436 /* Open handle on user */
1437
1438 status = dcerpc_samr_OpenUser(b, mem_ctx,
1439 &domain_pol,
1440 SEC_FLAG_MAXIMUM_ALLOWED,
1441 user_rid,
1442 &user_pol,
1443 &result);
1444 if (!NT_STATUS_IS_OK(status)) {
1445 goto done;
1446 }
1447 if (!NT_STATUS_IS_OK(result)) {
1448 status = result;
1449 goto done;
1450 }
1451
1452 /* Get user info */
1453
1454 status = dcerpc_samr_QueryUserInfo(b, mem_ctx,
1455 &user_pol,
1456 16,
1457 &info,
1458 &result);
1459 if (!NT_STATUS_IS_OK(status)) {
1460 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1461 goto done;
1462 }
1463 if (!NT_STATUS_IS_OK(result)) {
1464 status = result;
1465 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1466 goto done;
1467 }
1468
1469 /* now disable and setuser info */
1470
1471 info->info16.acct_flags |= ACB_DISABLED;
1472
1473 status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1474 &user_pol,
1475 16,
1476 info,
1477 &result);
1478 if (!NT_STATUS_IS_OK(status)) {
1479 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1480 goto done;
1481 }
1482 if (!NT_STATUS_IS_OK(result)) {
1483 status = result;
1484 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1485 goto done;
1486 }
1487 status = result;
1488 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1489
1490 done:
1491 if (pipe_hnd && b) {
1492 if (is_valid_policy_hnd(&domain_pol)) {
1493 dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1494 }
1495 if (is_valid_policy_hnd(&sam_pol)) {
1496 dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1497 }
1498 TALLOC_FREE(pipe_hnd);
1499 }
1500
1501 if (cli) {
1502 cli_shutdown(cli);
1503 }
1504
1505 return status;
1506 }
1507
1508 /****************************************************************
1509 ****************************************************************/
1510
1511 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1512 {
1513 WERROR werr = WERR_OK;
1514 sbcErr err;
1515 struct smbconf_ctx *ctx;
1516
1517 err = smbconf_init_reg(r, &ctx, NULL);
1518 if (!SBC_ERROR_IS_OK(err)) {
1519 werr = WERR_NO_SUCH_SERVICE;
1520 goto done;
1521 }
1522
1523 if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1524
1525 err = smbconf_set_global_parameter(ctx, "security", "user");
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, "workgroup",
1532 r->in.domain_name);
1533 if (!SBC_ERROR_IS_OK(err)) {
1534 werr = WERR_NO_SUCH_SERVICE;
1535 goto done;
1536 }
1537
1538 smbconf_delete_global_parameter(ctx, "realm");
1539 goto done;
1540 }
1541
1542 err = smbconf_set_global_parameter(ctx, "security", "domain");
1543 if (!SBC_ERROR_IS_OK(err)) {
1544 werr = WERR_NO_SUCH_SERVICE;
1545 goto done;
1546 }
1547
1548 err = smbconf_set_global_parameter(ctx, "workgroup",
1549 r->out.netbios_domain_name);
1550 if (!SBC_ERROR_IS_OK(err)) {
1551 werr = WERR_NO_SUCH_SERVICE;
1552 goto done;
1553 }
1554
1555 if (r->out.domain_is_ad) {
1556 err = smbconf_set_global_parameter(ctx, "security", "ads");
1557 if (!SBC_ERROR_IS_OK(err)) {
1558 werr = WERR_NO_SUCH_SERVICE;
1559 goto done;
1560 }
1561
1562 err = smbconf_set_global_parameter(ctx, "realm",
1563 r->out.dns_domain_name);
1564 if (!SBC_ERROR_IS_OK(err)) {
1565 werr = WERR_NO_SUCH_SERVICE;
1566 goto done;
1567 }
1568 }
1569
1570 done:
1571 smbconf_shutdown(ctx);
1572 return werr;
1573 }
1574
1575 /****************************************************************
1576 ****************************************************************/
1577
1578 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1579 {
1580 WERROR werr = WERR_OK;
1581 sbcErr err;
1582 struct smbconf_ctx *ctx;
1583
1584 err = smbconf_init_reg(r, &ctx, NULL);
1585 if (!SBC_ERROR_IS_OK(err)) {
1586 werr = WERR_NO_SUCH_SERVICE;
1587 goto done;
1588 }
1589
1590 if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1591
1592 err = smbconf_set_global_parameter(ctx, "security", "user");
1593 if (!SBC_ERROR_IS_OK(err)) {
1594 werr = WERR_NO_SUCH_SERVICE;
1595 goto done;
1596 }
1597
1598 err = smbconf_delete_global_parameter(ctx, "workgroup");
1599 if (!SBC_ERROR_IS_OK(err)) {
1600 werr = WERR_NO_SUCH_SERVICE;
1601 goto done;
1602 }
1603
1604 smbconf_delete_global_parameter(ctx, "realm");
1605 }
1606
1607 done:
1608 smbconf_shutdown(ctx);
1609 return werr;
1610 }
1611
1612 /****************************************************************
1613 ****************************************************************/
1614
1615 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1616 {
1617 WERROR werr;
1618
1619 if (!W_ERROR_IS_OK(r->out.result)) {
1620 return r->out.result;
1621 }
1622
1623 if (!r->in.modify_config) {
1624 return WERR_OK;
1625 }
1626
1627 werr = do_join_modify_vals_config(r);
1628 if (!W_ERROR_IS_OK(werr)) {
1629 return werr;
1630 }
1631
1632 lp_load_global(get_dyn_CONFIGFILE());
1633
1634 r->out.modified_config = true;
1635 r->out.result = werr;
1636
1637 return werr;
1638 }
1639
1640 /****************************************************************
1641 ****************************************************************/
1642
1643 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1644 {
1645 WERROR werr;
1646
1647 if (!W_ERROR_IS_OK(r->out.result)) {
1648 return r->out.result;
1649 }
1650
1651 if (!r->in.modify_config) {
1652 return WERR_OK;
1653 }
1654
1655 werr = do_unjoin_modify_vals_config(r);
1656 if (!W_ERROR_IS_OK(werr)) {
1657 return werr;
1658 }
1659
1660 lp_load_global(get_dyn_CONFIGFILE());
1661
1662 r->out.modified_config = true;
1663 r->out.result = werr;
1664
1665 return werr;
1666 }
1667
1668 /****************************************************************
1669 ****************************************************************/
1670
1671 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1672 const char *domain_str,
1673 const char **domain_p,
1674 const char **dc_p)
1675 {
1676 char *domain = NULL;
1677 char *dc = NULL;
1678 const char *p = NULL;
1679
1680 if (!domain_str || !domain_p || !dc_p) {
1681 return false;
1682 }
1683
1684 p = strchr_m(domain_str, '\\');
1685
1686 if (p != NULL) {
1687 domain = talloc_strndup(mem_ctx, domain_str,
1688 PTR_DIFF(p, domain_str));
1689 dc = talloc_strdup(mem_ctx, p+1);
1690 if (!dc) {
1691 return false;
1692 }
1693 } else {
1694 domain = talloc_strdup(mem_ctx, domain_str);
1695 dc = NULL;
1696 }
1697 if (!domain) {
1698 return false;
1699 }
1700
1701 *domain_p = domain;
1702
1703 if (!*dc_p && dc) {
1704 *dc_p = dc;
1705 }
1706
1707 return true;
1708 }
1709
1710 /****************************************************************
1711 ****************************************************************/
1712
1713 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1714 struct libnet_JoinCtx *r)
1715 {
1716 if (!r->in.domain_name) {
1717 libnet_join_set_error_string(mem_ctx, r,
1718 "No domain name defined");
1719 return WERR_INVALID_PARAM;
1720 }
1721
1722 if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1723 &r->in.domain_name,
1724 &r->in.dc_name)) {
1725 libnet_join_set_error_string(mem_ctx, r,
1726 "Failed to parse domain name");
1727 return WERR_INVALID_PARAM;
1728 }
1729
1730 if (IS_DC) {
1731 return WERR_SETUP_DOMAIN_CONTROLLER;
1732 }
1733
1734 if (!secrets_init()) {
1735 libnet_join_set_error_string(mem_ctx, r,
1736 "Unable to open secrets database");
1737 return WERR_CAN_NOT_COMPLETE;
1738 }
1739
1740 return WERR_OK;
1741 }
1742
1743 /****************************************************************
1744 ****************************************************************/
1745
1746 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1747 {
1748 NTSTATUS status;
1749
1750 /* Try adding dom admins to builtin\admins. Only log failures. */
1751 status = create_builtin_administrators(domain_sid);
1752 if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1753 DEBUG(10,("Unable to auto-add domain administrators to "
1754 "BUILTIN\\Administrators during join because "
1755 "winbindd must be running.\n"));
1756 } else if (!NT_STATUS_IS_OK(status)) {
1757 DEBUG(5, ("Failed to auto-add domain administrators to "
1758 "BUILTIN\\Administrators during join: %s\n",
1759 nt_errstr(status)));
1760 }
1761
1762 /* Try adding dom users to builtin\users. Only log failures. */
1763 status = create_builtin_users(domain_sid);
1764 if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1765 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1766 "during join because winbindd must be running.\n"));
1767 } else if (!NT_STATUS_IS_OK(status)) {
1768 DEBUG(5, ("Failed to auto-add domain administrators to "
1769 "BUILTIN\\Administrators during join: %s\n",
1770 nt_errstr(status)));
1771 }
1772 }
1773
1774 /****************************************************************
1775 ****************************************************************/
1776
1777 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1778 struct libnet_JoinCtx *r)
1779 {
1780 WERROR werr;
1781
1782 if (!W_ERROR_IS_OK(r->out.result)) {
1783 return r->out.result;
1784 }
1785
1786 werr = do_JoinConfig(r);
1787 if (!W_ERROR_IS_OK(werr)) {
1788 return werr;
1789 }
1790
1791 if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1792 return WERR_OK;
1793 }
1794
1795 saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
1796 if (r->out.dns_domain_name) {
1797 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
1798 }
1799
1800 #ifdef HAVE_ADS
1801 if (r->out.domain_is_ad &&
1802 !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1803 ADS_STATUS ads_status;
1804
1805 ads_status = libnet_join_post_processing_ads(mem_ctx, r);
1806 if (!ADS_ERR_OK(ads_status)) {
1807 return WERR_GENERAL_FAILURE;
1808 }
1809 }
1810 #endif /* HAVE_ADS */
1811
1812 libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
1813
1814 return WERR_OK;
1815 }
1816
1817 /****************************************************************
1818 ****************************************************************/
1819
1820 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1821 {
1822 if (r->in.ads) {
1823 ads_destroy(&r->in.ads);
1824 }
1825
1826 return 0;
1827 }
1828
1829 /****************************************************************
1830 ****************************************************************/
1831
1832 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1833 {
1834 if (r->in.ads) {
1835 ads_destroy(&r->in.ads);
1836 }
1837
1838 return 0;
1839 }
1840
1841 /****************************************************************
1842 ****************************************************************/
1843
1844 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1845 struct libnet_JoinCtx **r)
1846 {
1847 struct libnet_JoinCtx *ctx;
1848
1849 ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1850 if (!ctx) {
1851 return WERR_NOMEM;
1852 }
1853
1854 talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1855
1856 ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
1857 W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1858
1859 ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1860
1861 *r = ctx;
1862
1863 return WERR_OK;
1864 }
1865
1866 /****************************************************************
1867 ****************************************************************/
1868
1869 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1870 struct libnet_UnjoinCtx **r)
1871 {
1872 struct libnet_UnjoinCtx *ctx;
1873
1874 ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1875 if (!ctx) {
1876 return WERR_NOMEM;
1877 }
1878
1879 talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1880
1881 ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
1882 W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1883
1884 *r = ctx;
1885
1886 return WERR_OK;
1887 }
1888
1889 /****************************************************************
1890 ****************************************************************/
1891
1892 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1893 struct libnet_JoinCtx *r)
1894 {
1895 bool valid_security = false;
1896 bool valid_workgroup = false;
1897 bool valid_realm = false;
1898
1899 /* check if configuration is already set correctly */
1900
1901 valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
1902
1903 switch (r->out.domain_is_ad) {
1904 case false:
1905 valid_security = (lp_security() == SEC_DOMAIN);
1906 if (valid_workgroup && valid_security) {
1907 /* nothing to be done */
1908 return WERR_OK;
1909 }
1910 break;
1911 case true:
1912 valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
1913 switch (lp_security()) {
1914 case SEC_DOMAIN:
1915 case SEC_ADS:
1916 valid_security = true;
1917 }
1918
1919 if (valid_workgroup && valid_realm && valid_security) {
1920 /* nothing to be done */
1921 return WERR_OK;
1922 }
1923 break;
1924 }
1925
1926 /* check if we are supposed to manipulate configuration */
1927
1928 if (!r->in.modify_config) {
1929
1930 char *wrong_conf = talloc_strdup(mem_ctx, "");
1931
1932 if (!valid_workgroup) {
1933 wrong_conf = talloc_asprintf_append(wrong_conf,
1934 "\"workgroup\" set to '%s', should be '%s'",
1935 lp_workgroup(), r->out.netbios_domain_name);
1936 W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1937 }
1938
1939 if (!valid_realm) {
1940 wrong_conf = talloc_asprintf_append(wrong_conf,
1941 "\"realm\" set to '%s', should be '%s'",
1942 lp_realm(), r->out.dns_domain_name);
1943 W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1944 }
1945
1946 if (!valid_security) {
1947 const char *sec = NULL;
1948 switch (lp_security()) {
1949 case SEC_USER: sec = "user"; break;
1950 case SEC_DOMAIN: sec = "domain"; break;
1951 case SEC_ADS: sec = "ads"; break;
1952 }
1953 wrong_conf = talloc_asprintf_append(wrong_conf,
1954 "\"security\" set to '%s', should be %s",
1955 sec, r->out.domain_is_ad ?
1956 "either 'domain' or 'ads'" : "'domain'");
1957 W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1958 }
1959
1960 libnet_join_set_error_string(mem_ctx, r,
1961 "Invalid configuration (%s) and configuration modification "
1962 "was not requested", wrong_conf);
1963 return WERR_CAN_NOT_COMPLETE;
1964 }
1965
1966 /* check if we are able to manipulate configuration */
1967
1968 if (!lp_config_backend_is_registry()) {
1969 libnet_join_set_error_string(mem_ctx, r,
1970 "Configuration manipulation requested but not "
1971 "supported by backend");
1972 return WERR_NOT_SUPPORTED;
1973 }
1974
1975 return WERR_OK;
1976 }
1977
1978 /****************************************************************
1979 ****************************************************************/
1980
1981 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1982 struct libnet_JoinCtx *r)
1983 {
1984 NTSTATUS status;
1985 WERROR werr;
1986 struct cli_state *cli = NULL;
1987 #ifdef HAVE_ADS
1988 ADS_STATUS ads_status;
1989 #endif /* HAVE_ADS */
1990
1991 if (!r->in.dc_name) {
1992 struct netr_DsRGetDCNameInfo *info;
1993 const char *dc;
1994 status = dsgetdcname(mem_ctx,
1995 r->in.msg_ctx,
1996 r->in.domain_name,
1997 NULL,
1998 NULL,
1999 DS_FORCE_REDISCOVERY |
2000 DS_DIRECTORY_SERVICE_REQUIRED |
2001 DS_WRITABLE_REQUIRED |
2002 DS_RETURN_DNS_NAME,
2003 &info);
2004 if (!NT_STATUS_IS_OK(status)) {
2005 libnet_join_set_error_string(mem_ctx, r,
2006 "failed to find DC for domain %s",
2007 r->in.domain_name,
2008 get_friendly_nt_error_msg(status));
2009 return WERR_DCNOTFOUND;
2010 }
2011
2012 dc = strip_hostname(info->dc_unc);
2013 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2014 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2015 }
2016
2017 status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
2018 if (!NT_STATUS_IS_OK(status)) {
2019 libnet_join_set_error_string(mem_ctx, r,
2020 "failed to lookup DC info for domain '%s' over rpc: %s",
2021 r->in.domain_name, get_friendly_nt_error_msg(status));
2022 return ntstatus_to_werror(status);
2023 }
2024
2025 werr = libnet_join_check_config(mem_ctx, r);
2026 if (!W_ERROR_IS_OK(werr)) {
2027 goto done;
2028 }
2029
2030 #ifdef HAVE_ADS
2031
2032 create_local_private_krb5_conf_for_domain(
2033 r->out.dns_domain_name, r->out.netbios_domain_name,
2034 NULL, smbXcli_conn_remote_sockaddr(cli->conn),
2035 smbXcli_conn_remote_name(cli->conn));
2036
2037 if (r->out.domain_is_ad && r->in.account_ou &&
2038 !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
2039
2040 ads_status = libnet_join_connect_ads(mem_ctx, r);
2041 if (!ADS_ERR_OK(ads_status)) {
2042 return WERR_DEFAULT_JOIN_REQUIRED;
2043 }
2044
2045 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
2046 if (!ADS_ERR_OK(ads_status)) {
2047 libnet_join_set_error_string(mem_ctx, r,
2048 "failed to precreate account in ou %s: %s",
2049 r->in.account_ou,
2050 ads_errstr(ads_status));
2051 return WERR_DEFAULT_JOIN_REQUIRED;
2052 }
2053
2054 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
2055 }
2056 #endif /* HAVE_ADS */
2057
2058 if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
2059 (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
2060 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
2061 } else {
2062 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
2063 }
2064 if (!NT_STATUS_IS_OK(status)) {
2065 libnet_join_set_error_string(mem_ctx, r,
2066 "failed to join domain '%s' over rpc: %s",
2067 r->in.domain_name, get_friendly_nt_error_msg(status));
2068 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
2069 return WERR_SETUP_ALREADY_JOINED;
2070 }
2071 werr = ntstatus_to_werror(status);
2072 goto done;
2073 }
2074
2075 if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
2076 werr = WERR_SETUP_NOT_JOINED;
2077 goto done;
2078 }
2079
2080 werr = WERR_OK;
2081
2082 done:
2083 if (cli) {
2084 cli_shutdown(cli);
2085 }
2086
2087 return werr;
2088 }
2089
2090 /****************************************************************
2091 ****************************************************************/
2092
2093 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
2094 struct libnet_JoinCtx *r)
2095 {
2096 WERROR werr;
2097 struct libnet_UnjoinCtx *u = NULL;
2098
2099 werr = libnet_init_UnjoinCtx(mem_ctx, &u);
2100 if (!W_ERROR_IS_OK(werr)) {
2101 return werr;
2102 }
2103
2104 u->in.debug = r->in.debug;
2105 u->in.dc_name = r->in.dc_name;
2106 u->in.domain_name = r->in.domain_name;
2107 u->in.admin_account = r->in.admin_account;
2108 u->in.admin_password = r->in.admin_password;
2109 u->in.modify_config = r->in.modify_config;
2110 u->in.use_kerberos = r->in.use_kerberos;
2111 u->in.unjoin_flags = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
2112 WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
2113
2114 werr = libnet_Unjoin(mem_ctx, u);
2115 TALLOC_FREE(u);
2116
2117 return werr;
2118 }
2119
2120 /****************************************************************
2121 ****************************************************************/
2122
2123 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
2124 struct libnet_JoinCtx *r)
2125 {
2126 WERROR werr;
2127
2128 if (r->in.debug) {
2129 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
2130 }
2131
2132 ZERO_STRUCT(r->out);
2133
2134 werr = libnet_join_pre_processing(mem_ctx, r);
2135 if (!W_ERROR_IS_OK(werr)) {
2136 goto done;
2137 }
2138
2139 if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2140 werr = libnet_DomainJoin(mem_ctx, r);
2141 if (!W_ERROR_IS_OK(werr)) {
2142 goto done;
2143 }
2144 }
2145
2146 werr = libnet_join_post_processing(mem_ctx, r);
2147 if (!W_ERROR_IS_OK(werr)) {
2148 goto done;
2149 }
2150
2151 if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2152 werr = libnet_join_post_verify(mem_ctx, r);
2153 if (!W_ERROR_IS_OK(werr)) {
2154 libnet_join_rollback(mem_ctx, r);
2155 }
2156 }
2157
2158 done:
2159 r->out.result = werr;
2160
2161 if (r->in.debug) {
2162 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
2163 }
2164 return werr;
2165 }
2166
2167 /****************************************************************
2168 ****************************************************************/
2169
2170 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
2171 struct libnet_UnjoinCtx *r)
2172 {
2173 NTSTATUS status;
2174
2175 if (!r->in.domain_sid) {
2176 struct dom_sid sid;
2177 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2178 libnet_unjoin_set_error_string(mem_ctx, r,
2179 "Unable to fetch domain sid: are we joined?");
2180 return WERR_SETUP_NOT_JOINED;
2181 }
2182 r->in.domain_sid = dom_sid_dup(mem_ctx, &sid);
2183 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2184 }
2185
2186 if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2187 !r->in.delete_machine_account) {
2188 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2189 return WERR_OK;
2190 }
2191
2192 if (!r->in.dc_name) {
2193 struct netr_DsRGetDCNameInfo *info;
2194 const char *dc;
2195 status = dsgetdcname(mem_ctx,
2196 r->in.msg_ctx,
2197 r->in.domain_name,
2198 NULL,
2199 NULL,
2200 DS_DIRECTORY_SERVICE_REQUIRED |
2201 DS_WRITABLE_REQUIRED |
2202 DS_RETURN_DNS_NAME,
2203 &info);
2204 if (!NT_STATUS_IS_OK(status)) {
2205 libnet_unjoin_set_error_string(mem_ctx, r,
2206 "failed to find DC for domain %s",
2207 r->in.domain_name,
2208 get_friendly_nt_error_msg(status));
2209 return WERR_DCNOTFOUND;
2210 }
2211
2212 dc = strip_hostname(info->dc_unc);
2213 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2214 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2215 }
2216
2217 #ifdef HAVE_ADS
2218 /* for net ads leave, try to delete the account. If it works,
2219 no sense in disabling. If it fails, we can still try to
2220 disable it. jmcd */
2221
2222 if (r->in.delete_machine_account) {
2223 ADS_STATUS ads_status;
2224 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2225 if (ADS_ERR_OK(ads_status)) {
2226 /* dirty hack */
2227 r->out.dns_domain_name =
2228 talloc_strdup(mem_ctx,
2229 r->in.ads->server.realm);
2230 ads_status =
2231 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2232 }
2233 if (!ADS_ERR_OK(ads_status)) {
2234 libnet_unjoin_set_error_string(mem_ctx, r,
2235 "failed to remove machine account from AD: %s",
2236 ads_errstr(ads_status));
2237 } else {
2238 r->out.deleted_machine_account = true;
2239 W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2240 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2241 return WERR_OK;
2242 }
2243 }
2244 #endif /* HAVE_ADS */
2245
2246 /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2247 "disable". */
2248 if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2249 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2250 if (!NT_STATUS_IS_OK(status)) {
2251 libnet_unjoin_set_error_string(mem_ctx, r,
2252 "failed to disable machine account via rpc: %s",
2253 get_friendly_nt_error_msg(status));
2254 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2255 return WERR_SETUP_NOT_JOINED;
2256 }
2257 return ntstatus_to_werror(status);
2258 }
2259
2260 r->out.disabled_machine_account = true;
2261 }
2262
2263 /* If disable succeeded or was not requested at all, we
2264 should be getting rid of our end of things */
2265
2266 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2267
2268 return WERR_OK;
2269 }
2270
2271 /****************************************************************
2272 ****************************************************************/
2273
2274 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2275 struct libnet_UnjoinCtx *r)
2276 {
2277 if (!r->in.domain_name) {
2278 libnet_unjoin_set_error_string(mem_ctx, r,
2279 "No domain name defined");
2280 return WERR_INVALID_PARAM;
2281 }
2282
2283 if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2284 &r->in.domain_name,
2285 &r->in.dc_name)) {
2286 libnet_unjoin_set_error_string(mem_ctx, r,
2287 "Failed to parse domain name");
2288 return WERR_INVALID_PARAM;
2289 }
2290
2291 if (IS_DC) {
2292 return WERR_SETUP_DOMAIN_CONTROLLER;
2293 }
2294
2295 if (!secrets_init()) {
2296 libnet_unjoin_set_error_string(mem_ctx, r,
2297 "Unable to open secrets database");
2298 return WERR_CAN_NOT_COMPLETE;
2299 }
2300
2301 return WERR_OK;
2302 }
2303
2304 /****************************************************************
2305 ****************************************************************/
2306
2307 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2308 struct libnet_UnjoinCtx *r)
2309 {
2310 saf_delete(r->out.netbios_domain_name);
2311 saf_delete(r->out.dns_domain_name);
2312
2313 return libnet_unjoin_config(r);
2314 }
2315
2316 /****************************************************************
2317 ****************************************************************/
2318
2319 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2320 struct libnet_UnjoinCtx *r)
2321 {
2322 WERROR werr;
2323
2324 if (r->in.debug) {
2325 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2326 }
2327
2328 werr = libnet_unjoin_pre_processing(mem_ctx, r);
2329 if (!W_ERROR_IS_OK(werr)) {
2330 goto done;
2331 }
2332
2333 if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2334 werr = libnet_DomainUnjoin(mem_ctx, r);
2335 if (!W_ERROR_IS_OK(werr)) {
2336 libnet_unjoin_config(r);
2337 goto done;
2338 }
2339 }
2340
2341 werr = libnet_unjoin_post_processing(mem_ctx, r);
2342 if (!W_ERROR_IS_OK(werr)) {
2343 goto done;
2344 }
2345
2346 done:
2347 r->out.result = werr;
2348
2349 if (r->in.debug) {
2350 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2351 }
2352
2353 return werr;
2354 }
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