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libnetjoin: only close existing policy handles while unjoining.
[Samba/bb.git] / source / libnet / libnet_join.c
blob1ab75d7882103d87357bf7fbb054ae24b4fdbad4
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 "libnet/libnet.h"
23
24 /****************************************************************
25 ****************************************************************/
26
27 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
28 do { \
29 char *str = NULL; \
30 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
31 DEBUG(1,("libnet_Join:\n%s", str)); \
32 TALLOC_FREE(str); \
33 } while (0)
34
35 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
36 LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
37 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
38 LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
39
40 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
41 do { \
42 char *str = NULL; \
43 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
44 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
45 TALLOC_FREE(str); \
46 } while (0)
47
48 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
49 LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
50 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
51 LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
52
53 #define W_ERROR_NOT_OK_GOTO_DONE(x) do { \
54 if (!W_ERROR_IS_OK(x)) {\
55 goto done;\
56 }\
57 } while (0)
58
59 /****************************************************************
60 ****************************************************************/
61
62 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
63 struct libnet_JoinCtx *r,
64 const char *format, ...)
65 {
66 va_list args;
67
68 if (r->out.error_string) {
69 return;
70 }
71
72 va_start(args, format);
73 r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
74 va_end(args);
75 }
76
77 /****************************************************************
78 ****************************************************************/
79
80 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
81 struct libnet_UnjoinCtx *r,
82 const char *format, ...)
83 {
84 va_list args;
85
86 if (r->out.error_string) {
87 return;
88 }
89
90 va_start(args, format);
91 r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
92 va_end(args);
93 }
94
95 #ifdef WITH_ADS
96
97 /****************************************************************
98 ****************************************************************/
99
100 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
101 const char *netbios_domain_name,
102 const char *dc_name,
103 const char *user_name,
104 const char *password,
105 ADS_STRUCT **ads)
106 {
107 ADS_STATUS status;
108 ADS_STRUCT *my_ads = NULL;
109
110 my_ads = ads_init(dns_domain_name,
111 netbios_domain_name,
112 dc_name);
113 if (!my_ads) {
114 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
115 }
116
117 if (user_name) {
118 SAFE_FREE(my_ads->auth.user_name);
119 my_ads->auth.user_name = SMB_STRDUP(user_name);
120 }
121
122 if (password) {
123 SAFE_FREE(my_ads->auth.password);
124 my_ads->auth.password = SMB_STRDUP(password);
125 }
126
127 status = ads_connect(my_ads);
128 if (!ADS_ERR_OK(status)) {
129 ads_destroy(&my_ads);
130 return status;
131 }
132
133 *ads = my_ads;
134 return ADS_SUCCESS;
135 }
136
137 /****************************************************************
138 ****************************************************************/
139
140 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
141 struct libnet_JoinCtx *r)
142 {
143 ADS_STATUS status;
144
145 status = libnet_connect_ads(r->out.dns_domain_name,
146 r->out.netbios_domain_name,
147 r->in.dc_name,
148 r->in.admin_account,
149 r->in.admin_password,
150 &r->in.ads);
151 if (!ADS_ERR_OK(status)) {
152 libnet_join_set_error_string(mem_ctx, r,
153 "failed to connect to AD: %s",
154 ads_errstr(status));
155 return status;
156 }
157
158 if (!r->out.netbios_domain_name) {
159 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
160 r->in.ads->server.workgroup);
161 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
162 }
163
164 if (!r->out.dns_domain_name) {
165 r->out.dns_domain_name = talloc_strdup(mem_ctx,
166 r->in.ads->config.realm);
167 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
168 }
169
170 r->out.domain_is_ad = true;
171
172 return ADS_SUCCESS;
173 }
174
175 /****************************************************************
176 ****************************************************************/
177
178 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
179 struct libnet_UnjoinCtx *r)
180 {
181 ADS_STATUS status;
182
183 status = libnet_connect_ads(r->in.domain_name,
184 r->in.domain_name,
185 r->in.dc_name,
186 r->in.admin_account,
187 r->in.admin_password,
188 &r->in.ads);
189 if (!ADS_ERR_OK(status)) {
190 libnet_unjoin_set_error_string(mem_ctx, r,
191 "failed to connect to AD: %s",
192 ads_errstr(status));
193 }
194
195 return status;
196 }
197
198 /****************************************************************
199 join a domain using ADS (LDAP mods)
200 ****************************************************************/
201
202 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
203 struct libnet_JoinCtx *r)
204 {
205 ADS_STATUS status;
206 LDAPMessage *res = NULL;
207 const char *attrs[] = { "dn", NULL };
208 bool moved = false;
209
210 status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
211 if (!ADS_ERR_OK(status)) {
212 return status;
213 }
214
215 status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
216 if (!ADS_ERR_OK(status)) {
217 return status;
218 }
219
220 if (ads_count_replies(r->in.ads, res) != 1) {
221 ads_msgfree(r->in.ads, res);
222 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
223 }
224
225 ads_msgfree(r->in.ads, res);
226
227 /* Attempt to create the machine account and bail if this fails.
228 Assume that the admin wants exactly what they requested */
229
230 status = ads_create_machine_acct(r->in.ads,
231 r->in.machine_name,
232 r->in.account_ou);
233
234 if (ADS_ERR_OK(status)) {
235 DEBUG(1,("machine account creation created\n"));
236 return status;
237 } else if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
238 (status.err.rc == LDAP_ALREADY_EXISTS)) {
239 status = ADS_SUCCESS;
240 }
241
242 if (!ADS_ERR_OK(status)) {
243 DEBUG(1,("machine account creation failed\n"));
244 return status;
245 }
246
247 status = ads_move_machine_acct(r->in.ads,
248 r->in.machine_name,
249 r->in.account_ou,
250 &moved);
251 if (!ADS_ERR_OK(status)) {
252 DEBUG(1,("failure to locate/move pre-existing "
253 "machine account\n"));
254 return status;
255 }
256
257 DEBUG(1,("The machine account %s the specified OU.\n",
258 moved ? "was moved into" : "already exists in"));
259
260 return status;
261 }
262
263 /****************************************************************
264 ****************************************************************/
265
266 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
267 struct libnet_UnjoinCtx *r)
268 {
269 ADS_STATUS status;
270
271 if (!r->in.ads) {
272 return libnet_unjoin_connect_ads(mem_ctx, r);
273 }
274
275 status = ads_leave_realm(r->in.ads, r->in.machine_name);
276 if (!ADS_ERR_OK(status)) {
277 libnet_unjoin_set_error_string(mem_ctx, r,
278 "failed to leave realm: %s",
279 ads_errstr(status));
280 return status;
281 }
282
283 return ADS_SUCCESS;
284 }
285
286 /****************************************************************
287 ****************************************************************/
288
289 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
290 struct libnet_JoinCtx *r)
291 {
292 ADS_STATUS status;
293 LDAPMessage *res = NULL;
294 char *dn = NULL;
295
296 if (!r->in.machine_name) {
297 return ADS_ERROR(LDAP_NO_MEMORY);
298 }
299
300 status = ads_find_machine_acct(r->in.ads,
301 &res,
302 r->in.machine_name);
303 if (!ADS_ERR_OK(status)) {
304 return status;
305 }
306
307 if (ads_count_replies(r->in.ads, res) != 1) {
308 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
309 goto done;
310 }
311
312 dn = ads_get_dn(r->in.ads, res);
313 if (!dn) {
314 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
315 goto done;
316 }
317
318 r->out.dn = talloc_strdup(mem_ctx, dn);
319 if (!r->out.dn) {
320 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
321 goto done;
322 }
323
324 done:
325 ads_msgfree(r->in.ads, res);
326 ads_memfree(r->in.ads, dn);
327
328 return status;
329 }
330
331 /****************************************************************
332 Set a machines dNSHostName and servicePrincipalName attributes
333 ****************************************************************/
334
335 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
336 struct libnet_JoinCtx *r)
337 {
338 ADS_STATUS status;
339 ADS_MODLIST mods;
340 fstring my_fqdn;
341 const char *spn_array[3] = {NULL, NULL, NULL};
342 char *spn = NULL;
343
344 /* Find our DN */
345
346 status = libnet_join_find_machine_acct(mem_ctx, r);
347 if (!ADS_ERR_OK(status)) {
348 return status;
349 }
350
351 /* Windows only creates HOST/shortname & HOST/fqdn. */
352
353 spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
354 if (!spn) {
355 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
356 }
357 strupper_m(spn);
358 spn_array[0] = spn;
359
360 if (name_to_fqdn(my_fqdn, r->in.machine_name) &&
361 !strequal(my_fqdn, r->in.machine_name)) {
362
363 strlower_m(my_fqdn);
364 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
365 if (!spn) {
366 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
367 }
368 spn_array[1] = spn;
369 }
370
371 mods = ads_init_mods(mem_ctx);
372 if (!mods) {
373 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
374 }
375
376 /* fields of primary importance */
377
378 status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
379 if (!ADS_ERR_OK(status)) {
380 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
381 }
382
383 status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
384 spn_array);
385 if (!ADS_ERR_OK(status)) {
386 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
387 }
388
389 return ads_gen_mod(r->in.ads, r->out.dn, mods);
390 }
391
392 /****************************************************************
393 ****************************************************************/
394
395 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
396 struct libnet_JoinCtx *r)
397 {
398 ADS_STATUS status;
399 ADS_MODLIST mods;
400
401 if (!r->in.create_upn) {
402 return ADS_SUCCESS;
403 }
404
405 /* Find our DN */
406
407 status = libnet_join_find_machine_acct(mem_ctx, r);
408 if (!ADS_ERR_OK(status)) {
409 return status;
410 }
411
412 if (!r->in.upn) {
413 r->in.upn = talloc_asprintf(mem_ctx,
414 "host/%s@%s",
415 r->in.machine_name,
416 r->out.dns_domain_name);
417 if (!r->in.upn) {
418 return ADS_ERROR(LDAP_NO_MEMORY);
419 }
420 }
421
422 /* now do the mods */
423
424 mods = ads_init_mods(mem_ctx);
425 if (!mods) {
426 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
427 }
428
429 /* fields of primary importance */
430
431 status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
432 if (!ADS_ERR_OK(status)) {
433 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
434 }
435
436 return ads_gen_mod(r->in.ads, r->out.dn, mods);
437 }
438
439
440 /****************************************************************
441 ****************************************************************/
442
443 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
444 struct libnet_JoinCtx *r)
445 {
446 ADS_STATUS status;
447 ADS_MODLIST mods;
448 char *os_sp = NULL;
449
450 if (!r->in.os_name || !r->in.os_version ) {
451 return ADS_SUCCESS;
452 }
453
454 /* Find our DN */
455
456 status = libnet_join_find_machine_acct(mem_ctx, r);
457 if (!ADS_ERR_OK(status)) {
458 return status;
459 }
460
461 /* now do the mods */
462
463 mods = ads_init_mods(mem_ctx);
464 if (!mods) {
465 return ADS_ERROR(LDAP_NO_MEMORY);
466 }
467
468 os_sp = talloc_asprintf(mem_ctx, "Samba %s", SAMBA_VERSION_STRING);
469 if (!os_sp) {
470 return ADS_ERROR(LDAP_NO_MEMORY);
471 }
472
473 /* fields of primary importance */
474
475 status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
476 r->in.os_name);
477 if (!ADS_ERR_OK(status)) {
478 return status;
479 }
480
481 status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
482 r->in.os_version);
483 if (!ADS_ERR_OK(status)) {
484 return status;
485 }
486
487 status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
488 os_sp);
489 if (!ADS_ERR_OK(status)) {
490 return status;
491 }
492
493 return ads_gen_mod(r->in.ads, r->out.dn, mods);
494 }
495
496 /****************************************************************
497 ****************************************************************/
498
499 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
500 struct libnet_JoinCtx *r)
501 {
502 if (!lp_use_kerberos_keytab()) {
503 return true;
504 }
505
506 if (!ads_keytab_create_default(r->in.ads)) {
507 return false;
508 }
509
510 return true;
511 }
512
513 /****************************************************************
514 ****************************************************************/
515
516 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
517 struct libnet_JoinCtx *r)
518 {
519 uint32_t domain_func;
520 ADS_STATUS status;
521 const char *salt = NULL;
522 char *std_salt = NULL;
523
524 status = ads_domain_func_level(r->in.ads, &domain_func);
525 if (!ADS_ERR_OK(status)) {
526 libnet_join_set_error_string(mem_ctx, r,
527 "failed to determine domain functional level: %s",
528 ads_errstr(status));
529 return false;
530 }
531
532 /* go ahead and setup the default salt */
533
534 std_salt = kerberos_standard_des_salt();
535 if (!std_salt) {
536 libnet_join_set_error_string(mem_ctx, r,
537 "failed to obtain standard DES salt");
538 return false;
539 }
540
541 salt = talloc_strdup(mem_ctx, std_salt);
542 if (!salt) {
543 return false;
544 }
545
546 SAFE_FREE(std_salt);
547
548 /* if it's a Windows functional domain, we have to look for the UPN */
549
550 if (domain_func == DS_DOMAIN_FUNCTION_2000) {
551 char *upn;
552
553 upn = ads_get_upn(r->in.ads, mem_ctx,
554 r->in.machine_name);
555 if (upn) {
556 salt = talloc_strdup(mem_ctx, upn);
557 if (!salt) {
558 return false;
559 }
560 }
561 }
562
563 return kerberos_secrets_store_des_salt(salt);
564 }
565
566 /****************************************************************
567 ****************************************************************/
568
569 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
570 struct libnet_JoinCtx *r)
571 {
572 ADS_STATUS status;
573
574 if (!r->in.ads) {
575 status = libnet_join_connect_ads(mem_ctx, r);
576 if (!ADS_ERR_OK(status)) {
577 return status;
578 }
579 }
580
581 status = libnet_join_set_machine_spn(mem_ctx, r);
582 if (!ADS_ERR_OK(status)) {
583 libnet_join_set_error_string(mem_ctx, r,
584 "failed to set machine spn: %s",
585 ads_errstr(status));
586 return status;
587 }
588
589 status = libnet_join_set_os_attributes(mem_ctx, r);
590 if (!ADS_ERR_OK(status)) {
591 libnet_join_set_error_string(mem_ctx, r,
592 "failed to set machine os attributes: %s",
593 ads_errstr(status));
594 return status;
595 }
596
597 status = libnet_join_set_machine_upn(mem_ctx, r);
598 if (!ADS_ERR_OK(status)) {
599 libnet_join_set_error_string(mem_ctx, r,
600 "failed to set machine upn: %s",
601 ads_errstr(status));
602 return status;
603 }
604
605 if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
606 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
607 }
608
609 if (!libnet_join_create_keytab(mem_ctx, r)) {
610 libnet_join_set_error_string(mem_ctx, r,
611 "failed to create kerberos keytab");
612 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
613 }
614
615 return ADS_SUCCESS;
616 }
617 #endif /* WITH_ADS */
618
619 /****************************************************************
620 Store the machine password and domain SID
621 ****************************************************************/
622
623 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
624 struct libnet_JoinCtx *r)
625 {
626 if (!secrets_store_domain_sid(r->out.netbios_domain_name,
627 r->out.domain_sid))
628 {
629 DEBUG(1,("Failed to save domain sid\n"));
630 return false;
631 }
632
633 if (!secrets_store_machine_password(r->in.machine_password,
634 r->out.netbios_domain_name,
635 r->in.secure_channel_type))
636 {
637 DEBUG(1,("Failed to save machine password\n"));
638 return false;
639 }
640
641 return true;
642 }
643
644 /****************************************************************
645 Lookup domain dc's info
646 ****************************************************************/
647
648 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
649 struct libnet_JoinCtx *r,
650 struct cli_state **cli)
651 {
652 struct rpc_pipe_client *pipe_hnd = NULL;
653 POLICY_HND lsa_pol;
654 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
655 union lsa_PolicyInformation *info = NULL;
656
657 status = cli_full_connection(cli, NULL,
658 r->in.dc_name,
659 NULL, 0,
660 "IPC$", "IPC",
661 r->in.admin_account,
662 NULL,
663 r->in.admin_password,
664 0,
665 Undefined, NULL);
666
667 if (!NT_STATUS_IS_OK(status)) {
668 goto done;
669 }
670
671 pipe_hnd = cli_rpc_pipe_open_noauth(*cli, PI_LSARPC, &status);
672 if (!pipe_hnd) {
673 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
674 nt_errstr(status)));
675 goto done;
676 }
677
678 status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
679 SEC_RIGHTS_MAXIMUM_ALLOWED, &lsa_pol);
680 if (!NT_STATUS_IS_OK(status)) {
681 goto done;
682 }
683
684 status = rpccli_lsa_QueryInfoPolicy2(pipe_hnd, mem_ctx,
685 &lsa_pol,
686 LSA_POLICY_INFO_DNS,
687 &info);
688 if (NT_STATUS_IS_OK(status)) {
689 r->out.domain_is_ad = true;
690 r->out.netbios_domain_name = info->dns.name.string;
691 r->out.dns_domain_name = info->dns.dns_domain.string;
692 r->out.forest_name = info->dns.dns_forest.string;
693 r->out.domain_sid = info->dns.sid;
694 }
695
696 if (!NT_STATUS_IS_OK(status)) {
697 status = rpccli_lsa_QueryInfoPolicy(pipe_hnd, mem_ctx,
698 &lsa_pol,
699 LSA_POLICY_INFO_ACCOUNT_DOMAIN,
700 &info);
701 if (!NT_STATUS_IS_OK(status)) {
702 goto done;
703 }
704
705 r->out.netbios_domain_name = info->account_domain.name.string;
706 r->out.domain_sid = info->account_domain.sid;
707 }
708
709 rpccli_lsa_Close(pipe_hnd, mem_ctx, &lsa_pol);
710 TALLOC_FREE(pipe_hnd);
711
712 done:
713 return status;
714 }
715
716 /****************************************************************
717 Do the domain join
718 ****************************************************************/
719
720 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
721 struct libnet_JoinCtx *r,
722 struct cli_state *cli)
723 {
724 struct rpc_pipe_client *pipe_hnd = NULL;
725 POLICY_HND sam_pol, domain_pol, user_pol;
726 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
727 char *acct_name;
728 struct lsa_String lsa_acct_name;
729 uint32_t user_rid;
730 uint32_t acct_flags = ACB_WSTRUST;
731 uchar pwbuf[532];
732 struct MD5Context md5ctx;
733 uchar md5buffer[16];
734 DATA_BLOB digested_session_key;
735 uchar md4_trust_password[16];
736 struct samr_Ids user_rids;
737 struct samr_Ids name_types;
738 union samr_UserInfo user_info;
739
740 ZERO_STRUCT(sam_pol);
741 ZERO_STRUCT(domain_pol);
742 ZERO_STRUCT(user_pol);
743
744 if (!r->in.machine_password) {
745 r->in.machine_password = talloc_strdup(mem_ctx, generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH));
746 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
747 }
748
749 /* Open the domain */
750
751 pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &status);
752 if (!pipe_hnd) {
753 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
754 nt_errstr(status)));
755 goto done;
756 }
757
758 status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
759 pipe_hnd->desthost,
760 SEC_RIGHTS_MAXIMUM_ALLOWED,
761 &sam_pol);
762 if (!NT_STATUS_IS_OK(status)) {
763 goto done;
764 }
765
766 status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
767 &sam_pol,
768 SEC_RIGHTS_MAXIMUM_ALLOWED,
769 r->out.domain_sid,
770 &domain_pol);
771 if (!NT_STATUS_IS_OK(status)) {
772 goto done;
773 }
774
775 /* Create domain user */
776
777 acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
778 strlower_m(acct_name);
779
780 init_lsa_String(&lsa_acct_name, acct_name);
781
782 if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
783 uint32_t access_desired =
784 SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
785 SEC_STD_WRITE_DAC | SEC_STD_DELETE |
786 SAMR_USER_ACCESS_SET_PASSWORD |
787 SAMR_USER_ACCESS_GET_ATTRIBUTES |
788 SAMR_USER_ACCESS_SET_ATTRIBUTES;
789 uint32_t access_granted = 0;
790
791 /* Don't try to set any acct_flags flags other than ACB_WSTRUST */
792
793 DEBUG(10,("Creating account with desired access mask: %d\n",
794 access_desired));
795
796 status = rpccli_samr_CreateUser2(pipe_hnd, mem_ctx,
797 &domain_pol,
798 &lsa_acct_name,
799 ACB_WSTRUST,
800 access_desired,
801 &user_pol,
802 &access_granted,
803 &user_rid);
804 if (!NT_STATUS_IS_OK(status) &&
805 !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
806
807 DEBUG(10,("Creation of workstation account failed: %s\n",
808 nt_errstr(status)));
809
810 /* If NT_STATUS_ACCESS_DENIED then we have a valid
811 username/password combo but the user does not have
812 administrator access. */
813
814 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
815 libnet_join_set_error_string(mem_ctx, r,
816 "User specified does not have "
817 "administrator privileges");
818 }
819
820 goto done;
821 }
822
823 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
824 if (!(r->in.join_flags &
825 WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
826 goto done;
827 }
828 }
829
830 /* We *must* do this.... don't ask... */
831
832 if (NT_STATUS_IS_OK(status)) {
833 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
834 }
835 }
836
837 status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
838 &domain_pol,
839 1,
840 &lsa_acct_name,
841 &user_rids,
842 &name_types);
843 if (!NT_STATUS_IS_OK(status)) {
844 goto done;
845 }
846
847 if (name_types.ids[0] != SID_NAME_USER) {
848 DEBUG(0,("%s is not a user account (type=%d)\n",
849 acct_name, name_types.ids[0]));
850 status = NT_STATUS_INVALID_WORKSTATION;
851 goto done;
852 }
853
854 user_rid = user_rids.ids[0];
855
856 /* Open handle on user */
857
858 status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
859 &domain_pol,
860 SEC_RIGHTS_MAXIMUM_ALLOWED,
861 user_rid,
862 &user_pol);
863 if (!NT_STATUS_IS_OK(status)) {
864 goto done;
865 }
866
867 /* Create a random machine account password and generate the hash */
868
869 E_md4hash(r->in.machine_password, md4_trust_password);
870 encode_pw_buffer(pwbuf, r->in.machine_password, STR_UNICODE);
871
872 generate_random_buffer((uint8_t*)md5buffer, sizeof(md5buffer));
873 digested_session_key = data_blob_talloc(mem_ctx, 0, 16);
874
875 MD5Init(&md5ctx);
876 MD5Update(&md5ctx, md5buffer, sizeof(md5buffer));
877 MD5Update(&md5ctx, cli->user_session_key.data,
878 cli->user_session_key.length);
879 MD5Final(digested_session_key.data, &md5ctx);
880
881 SamOEMhashBlob(pwbuf, sizeof(pwbuf), &digested_session_key);
882 memcpy(&pwbuf[516], md5buffer, sizeof(md5buffer));
883
884 /* Fill in the additional account flags now */
885
886 acct_flags |= ACB_PWNOEXP;
887 if (r->out.domain_is_ad) {
888 #if !defined(ENCTYPE_ARCFOUR_HMAC)
889 acct_flags |= ACB_USE_DES_KEY_ONLY;
890 #endif
891 ;;
892 }
893
894 /* Set password and account flags on machine account */
895
896 ZERO_STRUCT(user_info.info25);
897
898 user_info.info25.info.fields_present = ACCT_NT_PWD_SET |
899 ACCT_LM_PWD_SET |
900 SAMR_FIELD_ACCT_FLAGS;
901
902 user_info.info25.info.acct_flags = acct_flags;
903 memcpy(&user_info.info25.password.data, pwbuf, sizeof(pwbuf));
904
905 status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
906 &user_pol,
907 25,
908 &user_info);
909
910 if (NT_STATUS_EQUAL(status, NT_STATUS(DCERPC_FAULT_INVALID_TAG))) {
911
912 uchar pwbuf2[516];
913
914 encode_pw_buffer(pwbuf2, r->in.machine_password, STR_UNICODE);
915
916 /* retry with level 24 */
917 init_samr_user_info24(&user_info.info24, pwbuf2, 24);
918
919 SamOEMhashBlob(user_info.info24.password.data, 516,
920 &cli->user_session_key);
921
922 status = rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
923 &user_pol,
924 24,
925 &user_info);
926 }
927
928 if (!NT_STATUS_IS_OK(status)) {
929
930 rpccli_samr_DeleteUser(pipe_hnd, mem_ctx,
931 &user_pol);
932
933 libnet_join_set_error_string(mem_ctx, r,
934 "Failed to set password for machine account (%s)\n",
935 nt_errstr(status));
936 goto done;
937 }
938
939 status = NT_STATUS_OK;
940
941 done:
942 if (!pipe_hnd) {
943 return status;
944 }
945
946 if (is_valid_policy_hnd(&sam_pol)) {
947 rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
948 }
949 if (is_valid_policy_hnd(&domain_pol)) {
950 rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
951 }
952 if (is_valid_policy_hnd(&user_pol)) {
953 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
954 }
955 TALLOC_FREE(pipe_hnd);
956
957 return status;
958 }
959
960 /****************************************************************
961 ****************************************************************/
962
963 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
964 const char *machine_name,
965 const char *dc_name)
966 {
967 uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
968 struct cli_state *cli = NULL;
969 struct rpc_pipe_client *pipe_hnd = NULL;
970 struct rpc_pipe_client *netlogon_pipe = NULL;
971 NTSTATUS status;
972 char *machine_password = NULL;
973 char *machine_account = NULL;
974
975 if (!dc_name) {
976 return NT_STATUS_INVALID_PARAMETER;
977 }
978
979 if (!secrets_init()) {
980 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
981 }
982
983 machine_password = secrets_fetch_machine_password(netbios_domain_name,
984 NULL, NULL);
985 if (!machine_password) {
986 return NT_STATUS_NO_TRUST_LSA_SECRET;
987 }
988
989 asprintf(&machine_account, "%s$", machine_name);
990 if (!machine_account) {
991 SAFE_FREE(machine_password);
992 return NT_STATUS_NO_MEMORY;
993 }
994
995 status = cli_full_connection(&cli, NULL,
996 dc_name,
997 NULL, 0,
998 "IPC$", "IPC",
999 machine_account,
1000 NULL,
1001 machine_password,
1002 0,
1003 Undefined, NULL);
1004 free(machine_account);
1005 free(machine_password);
1006
1007 if (!NT_STATUS_IS_OK(status)) {
1008 status = cli_full_connection(&cli, NULL,
1009 dc_name,
1010 NULL, 0,
1011 "IPC$", "IPC",
1012 "",
1013 NULL,
1014 "",
1015 0,
1016 Undefined, NULL);
1017 }
1018
1019 if (!NT_STATUS_IS_OK(status)) {
1020 return status;
1021 }
1022
1023 netlogon_pipe = get_schannel_session_key(cli,
1024 netbios_domain_name,
1025 &neg_flags, &status);
1026 if (!netlogon_pipe) {
1027 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
1028 cli_shutdown(cli);
1029 return NT_STATUS_OK;
1030 }
1031
1032 DEBUG(0,("libnet_join_ok: failed to get schannel session "
1033 "key from server %s for domain %s. Error was %s\n",
1034 cli->desthost, netbios_domain_name, nt_errstr(status)));
1035 cli_shutdown(cli);
1036 return status;
1037 }
1038
1039 if (!lp_client_schannel()) {
1040 cli_shutdown(cli);
1041 return NT_STATUS_OK;
1042 }
1043
1044 pipe_hnd = cli_rpc_pipe_open_schannel_with_key(cli, PI_NETLOGON,
1045 PIPE_AUTH_LEVEL_PRIVACY,
1046 netbios_domain_name,
1047 netlogon_pipe->dc,
1048 &status);
1049
1050 cli_shutdown(cli);
1051
1052 if (!pipe_hnd) {
1053 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1054 "on netlogon pipe to server %s for domain %s. "
1055 "Error was %s\n",
1056 cli->desthost, netbios_domain_name, nt_errstr(status)));
1057 return status;
1058 }
1059
1060 return NT_STATUS_OK;
1061 }
1062
1063 /****************************************************************
1064 ****************************************************************/
1065
1066 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1067 struct libnet_JoinCtx *r)
1068 {
1069 NTSTATUS status;
1070
1071 status = libnet_join_ok(r->out.netbios_domain_name,
1072 r->in.machine_name,
1073 r->in.dc_name);
1074 if (!NT_STATUS_IS_OK(status)) {
1075 libnet_join_set_error_string(mem_ctx, r,
1076 "failed to verify domain membership after joining: %s",
1077 get_friendly_nt_error_msg(status));
1078 return WERR_SETUP_NOT_JOINED;
1079 }
1080
1081 return WERR_OK;
1082 }
1083
1084 /****************************************************************
1085 ****************************************************************/
1086
1087 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1088 struct libnet_UnjoinCtx *r)
1089 {
1090 if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1091 return false;
1092 }
1093
1094 if (!secrets_delete_domain_sid(lp_workgroup())) {
1095 return false;
1096 }
1097
1098 return true;
1099 }
1100
1101 /****************************************************************
1102 ****************************************************************/
1103
1104 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1105 struct libnet_UnjoinCtx *r)
1106 {
1107 struct cli_state *cli = NULL;
1108 struct rpc_pipe_client *pipe_hnd = NULL;
1109 POLICY_HND sam_pol, domain_pol, user_pol;
1110 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
1111 char *acct_name;
1112 uint32_t user_rid;
1113 struct lsa_String lsa_acct_name;
1114 struct samr_Ids user_rids;
1115 struct samr_Ids name_types;
1116 union samr_UserInfo *info = NULL;
1117
1118 ZERO_STRUCT(sam_pol);
1119 ZERO_STRUCT(domain_pol);
1120 ZERO_STRUCT(user_pol);
1121
1122 status = cli_full_connection(&cli, NULL,
1123 r->in.dc_name,
1124 NULL, 0,
1125 "IPC$", "IPC",
1126 r->in.admin_account,
1127 NULL,
1128 r->in.admin_password,
1129 0, Undefined, NULL);
1130
1131 if (!NT_STATUS_IS_OK(status)) {
1132 goto done;
1133 }
1134
1135 /* Open the domain */
1136
1137 pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &status);
1138 if (!pipe_hnd) {
1139 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1140 nt_errstr(status)));
1141 goto done;
1142 }
1143
1144 status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
1145 pipe_hnd->desthost,
1146 SEC_RIGHTS_MAXIMUM_ALLOWED,
1147 &sam_pol);
1148 if (!NT_STATUS_IS_OK(status)) {
1149 goto done;
1150 }
1151
1152 status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
1153 &sam_pol,
1154 SEC_RIGHTS_MAXIMUM_ALLOWED,
1155 r->in.domain_sid,
1156 &domain_pol);
1157 if (!NT_STATUS_IS_OK(status)) {
1158 goto done;
1159 }
1160
1161 /* Create domain user */
1162
1163 acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1164 strlower_m(acct_name);
1165
1166 init_lsa_String(&lsa_acct_name, acct_name);
1167
1168 status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
1169 &domain_pol,
1170 1,
1171 &lsa_acct_name,
1172 &user_rids,
1173 &name_types);
1174
1175 if (!NT_STATUS_IS_OK(status)) {
1176 goto done;
1177 }
1178
1179 if (name_types.ids[0] != SID_NAME_USER) {
1180 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1181 name_types.ids[0]));
1182 status = NT_STATUS_INVALID_WORKSTATION;
1183 goto done;
1184 }
1185
1186 user_rid = user_rids.ids[0];
1187
1188 /* Open handle on user */
1189
1190 status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
1191 &domain_pol,
1192 SEC_RIGHTS_MAXIMUM_ALLOWED,
1193 user_rid,
1194 &user_pol);
1195 if (!NT_STATUS_IS_OK(status)) {
1196 goto done;
1197 }
1198
1199 /* Get user info */
1200
1201 status = rpccli_samr_QueryUserInfo(pipe_hnd, mem_ctx,
1202 &user_pol,
1203 16,
1204 &info);
1205 if (!NT_STATUS_IS_OK(status)) {
1206 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1207 goto done;
1208 }
1209
1210 /* now disable and setuser info */
1211
1212 info->info16.acct_flags |= ACB_DISABLED;
1213
1214 status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
1215 &user_pol,
1216 16,
1217 info);
1218
1219 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1220
1221 done:
1222 if (pipe_hnd) {
1223 if (is_valid_policy_hnd(&domain_pol)) {
1224 rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
1225 }
1226 if (is_valid_policy_hnd(&sam_pol)) {
1227 rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
1228 }
1229 TALLOC_FREE(pipe_hnd);
1230 }
1231
1232 if (cli) {
1233 cli_shutdown(cli);
1234 }
1235
1236 return status;
1237 }
1238
1239 /****************************************************************
1240 ****************************************************************/
1241
1242 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1243 {
1244 WERROR werr;
1245 struct smbconf_ctx *ctx;
1246
1247 werr = smbconf_init_reg(r, &ctx, NULL);
1248 if (!W_ERROR_IS_OK(werr)) {
1249 goto done;
1250 }
1251
1252 if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1253
1254 werr = smbconf_set_global_parameter(ctx, "security", "user");
1255 W_ERROR_NOT_OK_GOTO_DONE(werr);
1256
1257 werr = smbconf_set_global_parameter(ctx, "workgroup",
1258 r->in.domain_name);
1259
1260 smbconf_delete_global_parameter(ctx, "realm");
1261 goto done;
1262 }
1263
1264 werr = smbconf_set_global_parameter(ctx, "security", "domain");
1265 W_ERROR_NOT_OK_GOTO_DONE(werr);
1266
1267 werr = smbconf_set_global_parameter(ctx, "workgroup",
1268 r->out.netbios_domain_name);
1269 W_ERROR_NOT_OK_GOTO_DONE(werr);
1270
1271 if (r->out.domain_is_ad) {
1272 werr = smbconf_set_global_parameter(ctx, "security", "ads");
1273 W_ERROR_NOT_OK_GOTO_DONE(werr);
1274
1275 werr = smbconf_set_global_parameter(ctx, "realm",
1276 r->out.dns_domain_name);
1277 W_ERROR_NOT_OK_GOTO_DONE(werr);
1278 }
1279
1280 done:
1281 smbconf_shutdown(ctx);
1282 return werr;
1283 }
1284
1285 /****************************************************************
1286 ****************************************************************/
1287
1288 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1289 {
1290 WERROR werr = WERR_OK;
1291 struct smbconf_ctx *ctx;
1292
1293 werr = smbconf_init_reg(r, &ctx, NULL);
1294 if (!W_ERROR_IS_OK(werr)) {
1295 goto done;
1296 }
1297
1298 if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1299
1300 werr = smbconf_set_global_parameter(ctx, "security", "user");
1301 W_ERROR_NOT_OK_GOTO_DONE(werr);
1302
1303 werr = smbconf_delete_global_parameter(ctx, "workgroup");
1304 W_ERROR_NOT_OK_GOTO_DONE(werr);
1305
1306 smbconf_delete_global_parameter(ctx, "realm");
1307 }
1308
1309 done:
1310 smbconf_shutdown(ctx);
1311 return werr;
1312 }
1313
1314 /****************************************************************
1315 ****************************************************************/
1316
1317 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1318 {
1319 WERROR werr;
1320
1321 if (!W_ERROR_IS_OK(r->out.result)) {
1322 return r->out.result;
1323 }
1324
1325 if (!r->in.modify_config) {
1326 return WERR_OK;
1327 }
1328
1329 werr = do_join_modify_vals_config(r);
1330 if (!W_ERROR_IS_OK(werr)) {
1331 return werr;
1332 }
1333
1334 r->out.modified_config = true;
1335 r->out.result = werr;
1336
1337 return werr;
1338 }
1339
1340 /****************************************************************
1341 ****************************************************************/
1342
1343 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1344 {
1345 WERROR werr;
1346
1347 if (!W_ERROR_IS_OK(r->out.result)) {
1348 return r->out.result;
1349 }
1350
1351 if (!r->in.modify_config) {
1352 return WERR_OK;
1353 }
1354
1355 werr = do_unjoin_modify_vals_config(r);
1356 if (!W_ERROR_IS_OK(werr)) {
1357 return werr;
1358 }
1359
1360 r->out.modified_config = true;
1361 r->out.result = werr;
1362
1363 return werr;
1364 }
1365
1366 /****************************************************************
1367 ****************************************************************/
1368
1369 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1370 const char *domain_str,
1371 const char **domain_p,
1372 const char **dc_p)
1373 {
1374 char *domain = NULL;
1375 char *dc = NULL;
1376 const char *p = NULL;
1377
1378 if (!domain_str || !domain_p || !dc_p) {
1379 return false;
1380 }
1381
1382 p = strchr_m(domain_str, '\\');
1383
1384 if (p != NULL) {
1385 domain = talloc_strndup(mem_ctx, domain_str,
1386 PTR_DIFF(p, domain_str));
1387 dc = talloc_strdup(mem_ctx, p+1);
1388 if (!dc) {
1389 return false;
1390 }
1391 } else {
1392 domain = talloc_strdup(mem_ctx, domain_str);
1393 dc = NULL;
1394 }
1395 if (!domain) {
1396 return false;
1397 }
1398
1399 *domain_p = domain;
1400
1401 if (!*dc_p && dc) {
1402 *dc_p = dc;
1403 }
1404
1405 return true;
1406 }
1407
1408 /****************************************************************
1409 ****************************************************************/
1410
1411 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1412 struct libnet_JoinCtx *r)
1413 {
1414 if (!r->in.domain_name) {
1415 libnet_join_set_error_string(mem_ctx, r,
1416 "No domain name defined");
1417 return WERR_INVALID_PARAM;
1418 }
1419
1420 if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1421 &r->in.domain_name,
1422 &r->in.dc_name)) {
1423 libnet_join_set_error_string(mem_ctx, r,
1424 "Failed to parse domain name");
1425 return WERR_INVALID_PARAM;
1426 }
1427
1428 if (IS_DC) {
1429 return WERR_SETUP_DOMAIN_CONTROLLER;
1430 }
1431
1432 if (!secrets_init()) {
1433 libnet_join_set_error_string(mem_ctx, r,
1434 "Unable to open secrets database");
1435 return WERR_CAN_NOT_COMPLETE;
1436 }
1437
1438 return WERR_OK;
1439 }
1440
1441 /****************************************************************
1442 ****************************************************************/
1443
1444 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1445 struct libnet_JoinCtx *r)
1446 {
1447 WERROR werr;
1448
1449 if (!W_ERROR_IS_OK(r->out.result)) {
1450 return r->out.result;
1451 }
1452
1453 werr = do_JoinConfig(r);
1454 if (!W_ERROR_IS_OK(werr)) {
1455 return werr;
1456 }
1457
1458 if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1459 saf_store(r->in.domain_name, r->in.dc_name);
1460 }
1461
1462 return WERR_OK;
1463 }
1464
1465 /****************************************************************
1466 ****************************************************************/
1467
1468 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1469 {
1470 const char *krb5_cc_env = NULL;
1471
1472 if (r->in.ads) {
1473 ads_destroy(&r->in.ads);
1474 }
1475
1476 krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1477 if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1478 unsetenv(KRB5_ENV_CCNAME);
1479 }
1480
1481 return 0;
1482 }
1483
1484 /****************************************************************
1485 ****************************************************************/
1486
1487 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1488 {
1489 const char *krb5_cc_env = NULL;
1490
1491 if (r->in.ads) {
1492 ads_destroy(&r->in.ads);
1493 }
1494
1495 krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1496 if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1497 unsetenv(KRB5_ENV_CCNAME);
1498 }
1499
1500 return 0;
1501 }
1502
1503 /****************************************************************
1504 ****************************************************************/
1505
1506 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1507 struct libnet_JoinCtx **r)
1508 {
1509 struct libnet_JoinCtx *ctx;
1510 const char *krb5_cc_env = NULL;
1511
1512 ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1513 if (!ctx) {
1514 return WERR_NOMEM;
1515 }
1516
1517 talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1518
1519 ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1520 W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1521
1522 krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1523 if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1524 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1525 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1526 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1527 }
1528
1529 ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1530
1531 *r = ctx;
1532
1533 return WERR_OK;
1534 }
1535
1536 /****************************************************************
1537 ****************************************************************/
1538
1539 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1540 struct libnet_UnjoinCtx **r)
1541 {
1542 struct libnet_UnjoinCtx *ctx;
1543 const char *krb5_cc_env = NULL;
1544
1545 ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1546 if (!ctx) {
1547 return WERR_NOMEM;
1548 }
1549
1550 talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1551
1552 ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1553 W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1554
1555 krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1556 if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1557 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1558 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1559 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1560 }
1561
1562 *r = ctx;
1563
1564 return WERR_OK;
1565 }
1566
1567 /****************************************************************
1568 ****************************************************************/
1569
1570 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1571 struct libnet_JoinCtx *r)
1572 {
1573 /* check if configuration is already set correctly */
1574
1575 switch (r->out.domain_is_ad) {
1576 case false:
1577 if ((strequal(lp_workgroup(),
1578 r->out.netbios_domain_name)) &&
1579 (lp_security() == SEC_DOMAIN)) {
1580 /* nothing to be done */
1581 return WERR_OK;
1582 }
1583 break;
1584 case true:
1585 if ((strequal(lp_workgroup(),
1586 r->out.netbios_domain_name)) &&
1587 (strequal(lp_realm(),
1588 r->out.dns_domain_name)) &&
1589 ((lp_security() == SEC_ADS) ||
1590 (lp_security() == SEC_DOMAIN))) {
1591 /* nothing to be done */
1592 return WERR_OK;
1593 }
1594 break;
1595 }
1596
1597 /* check if we are supposed to manipulate configuration */
1598
1599 if (!r->in.modify_config) {
1600 libnet_join_set_error_string(mem_ctx, r,
1601 "Invalid configuration and configuration modification "
1602 "was not requested");
1603 return WERR_CAN_NOT_COMPLETE;
1604 }
1605
1606 /* check if we are able to manipulate configuration */
1607
1608 if (!lp_config_backend_is_registry()) {
1609 libnet_join_set_error_string(mem_ctx, r,
1610 "Configuration manipulation requested but not "
1611 "supported by backend");
1612 return WERR_NOT_SUPPORTED;
1613 }
1614
1615 return WERR_OK;
1616 }
1617
1618 /****************************************************************
1619 ****************************************************************/
1620
1621 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1622 struct libnet_JoinCtx *r)
1623 {
1624 NTSTATUS status;
1625 WERROR werr;
1626 struct cli_state *cli = NULL;
1627 #ifdef WITH_ADS
1628 ADS_STATUS ads_status;
1629 #endif /* WITH_ADS */
1630
1631 if (!r->in.dc_name) {
1632 struct netr_DsRGetDCNameInfo *info;
1633 const char *dc;
1634 status = dsgetdcname(mem_ctx,
1635 r->in.msg_ctx,
1636 r->in.domain_name,
1637 NULL,
1638 NULL,
1639 DS_DIRECTORY_SERVICE_REQUIRED |
1640 DS_WRITABLE_REQUIRED |
1641 DS_RETURN_DNS_NAME,
1642 &info);
1643 if (!NT_STATUS_IS_OK(status)) {
1644 libnet_join_set_error_string(mem_ctx, r,
1645 "failed to find DC for domain %s",
1646 r->in.domain_name,
1647 get_friendly_nt_error_msg(status));
1648 return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1649 }
1650
1651 dc = strip_hostname(info->dc_unc);
1652 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1653 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1654 }
1655
1656 status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1657 if (!NT_STATUS_IS_OK(status)) {
1658 libnet_join_set_error_string(mem_ctx, r,
1659 "failed to lookup DC info for domain '%s' over rpc: %s",
1660 r->in.domain_name, get_friendly_nt_error_msg(status));
1661 return ntstatus_to_werror(status);
1662 }
1663
1664 werr = libnet_join_check_config(mem_ctx, r);
1665 if (!W_ERROR_IS_OK(werr)) {
1666 goto done;
1667 }
1668
1669 #ifdef WITH_ADS
1670 if (r->out.domain_is_ad && r->in.account_ou) {
1671
1672 ads_status = libnet_join_connect_ads(mem_ctx, r);
1673 if (!ADS_ERR_OK(ads_status)) {
1674 return WERR_DEFAULT_JOIN_REQUIRED;
1675 }
1676
1677 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1678 if (!ADS_ERR_OK(ads_status)) {
1679 libnet_join_set_error_string(mem_ctx, r,
1680 "failed to precreate account in ou %s: %s",
1681 r->in.account_ou,
1682 ads_errstr(ads_status));
1683 return WERR_DEFAULT_JOIN_REQUIRED;
1684 }
1685
1686 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
1687 }
1688 #endif /* WITH_ADS */
1689
1690 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
1691 if (!NT_STATUS_IS_OK(status)) {
1692 libnet_join_set_error_string(mem_ctx, r,
1693 "failed to join domain '%s' over rpc: %s",
1694 r->in.domain_name, get_friendly_nt_error_msg(status));
1695 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1696 return WERR_SETUP_ALREADY_JOINED;
1697 }
1698 werr = ntstatus_to_werror(status);
1699 goto done;
1700 }
1701
1702 if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
1703 werr = WERR_SETUP_NOT_JOINED;
1704 goto done;
1705 }
1706
1707 #ifdef WITH_ADS
1708 if (r->out.domain_is_ad) {
1709 ads_status = libnet_join_post_processing_ads(mem_ctx, r);
1710 if (!ADS_ERR_OK(ads_status)) {
1711 werr = WERR_GENERAL_FAILURE;
1712 goto done;
1713 }
1714 }
1715 #endif /* WITH_ADS */
1716
1717 werr = WERR_OK;
1718
1719 done:
1720 if (cli) {
1721 cli_shutdown(cli);
1722 }
1723
1724 return werr;
1725 }
1726
1727 /****************************************************************
1728 ****************************************************************/
1729
1730 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
1731 struct libnet_JoinCtx *r)
1732 {
1733 WERROR werr;
1734
1735 if (r->in.debug) {
1736 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
1737 }
1738
1739 werr = libnet_join_pre_processing(mem_ctx, r);
1740 if (!W_ERROR_IS_OK(werr)) {
1741 goto done;
1742 }
1743
1744 if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1745 werr = libnet_DomainJoin(mem_ctx, r);
1746 if (!W_ERROR_IS_OK(werr)) {
1747 goto done;
1748 }
1749
1750 werr = libnet_join_post_verify(mem_ctx, r);
1751 if (!W_ERROR_IS_OK(werr)) {
1752 goto done;
1753 }
1754 }
1755
1756 werr = libnet_join_post_processing(mem_ctx, r);
1757 if (!W_ERROR_IS_OK(werr)) {
1758 goto done;
1759 }
1760 done:
1761 r->out.result = werr;
1762
1763 if (r->in.debug) {
1764 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
1765 }
1766 return werr;
1767 }
1768
1769 /****************************************************************
1770 ****************************************************************/
1771
1772 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
1773 struct libnet_UnjoinCtx *r)
1774 {
1775 NTSTATUS status;
1776
1777 if (!r->in.domain_sid) {
1778 struct dom_sid sid;
1779 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
1780 libnet_unjoin_set_error_string(mem_ctx, r,
1781 "Unable to fetch domain sid: are we joined?");
1782 return WERR_SETUP_NOT_JOINED;
1783 }
1784 r->in.domain_sid = sid_dup_talloc(mem_ctx, &sid);
1785 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
1786 }
1787
1788 if (!r->in.dc_name) {
1789 struct netr_DsRGetDCNameInfo *info;
1790 const char *dc;
1791 status = dsgetdcname(mem_ctx,
1792 r->in.msg_ctx,
1793 r->in.domain_name,
1794 NULL,
1795 NULL,
1796 DS_DIRECTORY_SERVICE_REQUIRED |
1797 DS_WRITABLE_REQUIRED |
1798 DS_RETURN_DNS_NAME,
1799 &info);
1800 if (!NT_STATUS_IS_OK(status)) {
1801 libnet_unjoin_set_error_string(mem_ctx, r,
1802 "failed to find DC for domain %s",
1803 r->in.domain_name,
1804 get_friendly_nt_error_msg(status));
1805 return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1806 }
1807
1808 dc = strip_hostname(info->dc_unc);
1809 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1810 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1811 }
1812
1813 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
1814 if (!NT_STATUS_IS_OK(status)) {
1815 libnet_unjoin_set_error_string(mem_ctx, r,
1816 "failed to disable machine account via rpc: %s",
1817 get_friendly_nt_error_msg(status));
1818 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
1819 return WERR_SETUP_NOT_JOINED;
1820 }
1821 return ntstatus_to_werror(status);
1822 }
1823
1824 r->out.disabled_machine_account = true;
1825
1826 #ifdef WITH_ADS
1827 if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
1828 ADS_STATUS ads_status;
1829 libnet_unjoin_connect_ads(mem_ctx, r);
1830 ads_status = libnet_unjoin_remove_machine_acct(mem_ctx, r);
1831 if (!ADS_ERR_OK(ads_status)) {
1832 libnet_unjoin_set_error_string(mem_ctx, r,
1833 "failed to remove machine account from AD: %s",
1834 ads_errstr(ads_status));
1835 } else {
1836 r->out.deleted_machine_account = true;
1837 /* dirty hack */
1838 r->out.dns_domain_name = talloc_strdup(mem_ctx,
1839 r->in.ads->server.realm);
1840 W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
1841 }
1842 }
1843 #endif /* WITH_ADS */
1844
1845 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
1846
1847 return WERR_OK;
1848 }
1849
1850 /****************************************************************
1851 ****************************************************************/
1852
1853 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
1854 struct libnet_UnjoinCtx *r)
1855 {
1856 if (!r->in.domain_name) {
1857 libnet_unjoin_set_error_string(mem_ctx, r,
1858 "No domain name defined");
1859 return WERR_INVALID_PARAM;
1860 }
1861
1862 if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1863 &r->in.domain_name,
1864 &r->in.dc_name)) {
1865 libnet_unjoin_set_error_string(mem_ctx, r,
1866 "Failed to parse domain name");
1867 return WERR_INVALID_PARAM;
1868 }
1869
1870 if (IS_DC) {
1871 return WERR_SETUP_DOMAIN_CONTROLLER;
1872 }
1873
1874 if (!secrets_init()) {
1875 libnet_unjoin_set_error_string(mem_ctx, r,
1876 "Unable to open secrets database");
1877 return WERR_CAN_NOT_COMPLETE;
1878 }
1879
1880 return WERR_OK;
1881 }
1882
1883 /****************************************************************
1884 ****************************************************************/
1885
1886 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
1887 struct libnet_UnjoinCtx *r)
1888 {
1889 saf_delete(r->out.netbios_domain_name);
1890 saf_delete(r->out.dns_domain_name);
1891
1892 return libnet_unjoin_config(r);
1893 }
1894
1895 /****************************************************************
1896 ****************************************************************/
1897
1898 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
1899 struct libnet_UnjoinCtx *r)
1900 {
1901 WERROR werr;
1902
1903 if (r->in.debug) {
1904 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
1905 }
1906
1907 werr = libnet_unjoin_pre_processing(mem_ctx, r);
1908 if (!W_ERROR_IS_OK(werr)) {
1909 goto done;
1910 }
1911
1912 if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1913 werr = libnet_DomainUnjoin(mem_ctx, r);
1914 if (!W_ERROR_IS_OK(werr)) {
1915 libnet_unjoin_config(r);
1916 goto done;
1917 }
1918 }
1919
1920 werr = libnet_unjoin_post_processing(mem_ctx, r);
1921 if (!W_ERROR_IS_OK(werr)) {
1922 goto done;
1923 }
1924
1925 done:
1926 r->out.result = werr;
1927
1928 if (r->in.debug) {
1929 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
1930 }
1931
1932 return werr;
1933 }