Eliminate remote tree of dsgetdcname (which will happen in libnetapi then).
[gd/samba/.git] / source / libnet / libnet_join.c
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 /****************************************************************
54 ****************************************************************/
55
56 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
57                                          struct libnet_JoinCtx *r,
58                                          const char *format, ...)
59 {
60         va_list args;
61
62         if (r->out.error_string) {
63                 return;
64         }
65
66         va_start(args, format);
67         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
68         va_end(args);
69 }
70
71 /****************************************************************
72 ****************************************************************/
73
74 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
75                                            struct libnet_UnjoinCtx *r,
76                                            const char *format, ...)
77 {
78         va_list args;
79
80         if (r->out.error_string) {
81                 return;
82         }
83
84         va_start(args, format);
85         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
86         va_end(args);
87 }
88
89 #ifdef WITH_ADS
90
91 /****************************************************************
92 ****************************************************************/
93
94 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
95                                      const char *netbios_domain_name,
96                                      const char *dc_name,
97                                      const char *user_name,
98                                      const char *password,
99                                      ADS_STRUCT **ads)
100 {
101         ADS_STATUS status;
102         ADS_STRUCT *my_ads = NULL;
103
104         my_ads = ads_init(dns_domain_name,
105                           netbios_domain_name,
106                           dc_name);
107         if (!my_ads) {
108                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
109         }
110
111         if (user_name) {
112                 SAFE_FREE(my_ads->auth.user_name);
113                 my_ads->auth.user_name = SMB_STRDUP(user_name);
114         }
115
116         if (password) {
117                 SAFE_FREE(my_ads->auth.password);
118                 my_ads->auth.password = SMB_STRDUP(password);
119         }
120
121         status = ads_connect(my_ads);
122         if (!ADS_ERR_OK(status)) {
123                 ads_destroy(&my_ads);
124                 return status;
125         }
126
127         *ads = my_ads;
128         return ADS_SUCCESS;
129 }
130
131 /****************************************************************
132 ****************************************************************/
133
134 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
135                                           struct libnet_JoinCtx *r)
136 {
137         ADS_STATUS status;
138
139         status = libnet_connect_ads(r->in.domain_name,
140                                     r->in.domain_name,
141                                     r->in.dc_name,
142                                     r->in.admin_account,
143                                     r->in.admin_password,
144                                     &r->in.ads);
145         if (!ADS_ERR_OK(status)) {
146                 libnet_join_set_error_string(mem_ctx, r,
147                         "failed to connect to AD: %s",
148                         ads_errstr(status));
149         }
150
151         return status;
152 }
153
154 /****************************************************************
155 ****************************************************************/
156
157 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
158                                             struct libnet_UnjoinCtx *r)
159 {
160         ADS_STATUS status;
161
162         status = libnet_connect_ads(r->in.domain_name,
163                                     r->in.domain_name,
164                                     r->in.dc_name,
165                                     r->in.admin_account,
166                                     r->in.admin_password,
167                                     &r->in.ads);
168         if (!ADS_ERR_OK(status)) {
169                 libnet_unjoin_set_error_string(mem_ctx, r,
170                         "failed to connect to AD: %s",
171                         ads_errstr(status));
172         }
173
174         return status;
175 }
176
177 /****************************************************************
178 ****************************************************************/
179
180 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
181                                                      struct libnet_JoinCtx *r)
182 {
183         ADS_STATUS status;
184         LDAPMessage *res = NULL;
185         const char *attrs[] = { "dn", NULL };
186
187         status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
188         if (!ADS_ERR_OK(status)) {
189                 return status;
190         }
191
192         if (ads_count_replies(r->in.ads, res) != 1) {
193                 ads_msgfree(r->in.ads, res);
194                 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
195         }
196
197         status = ads_create_machine_acct(r->in.ads,
198                                          r->in.machine_name,
199                                          r->in.account_ou);
200         ads_msgfree(r->in.ads, res);
201
202         if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
203             (status.err.rc == LDAP_ALREADY_EXISTS)) {
204                 status = ADS_SUCCESS;
205         }
206
207         return status;
208 }
209
210 /****************************************************************
211 ****************************************************************/
212
213 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
214                                                     struct libnet_UnjoinCtx *r)
215 {
216         ADS_STATUS status;
217
218         if (!r->in.ads) {
219                 status = libnet_unjoin_connect_ads(mem_ctx, r);
220                 if (!ADS_ERR_OK(status)) {
221                         return status;
222                 }
223         }
224
225         status = ads_leave_realm(r->in.ads, r->in.machine_name);
226         if (!ADS_ERR_OK(status)) {
227                 libnet_unjoin_set_error_string(mem_ctx, r,
228                         "failed to leave realm: %s",
229                         ads_errstr(status));
230                 return status;
231         }
232
233         return ADS_SUCCESS;
234 }
235
236 /****************************************************************
237 ****************************************************************/
238
239 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
240                                                 struct libnet_JoinCtx *r)
241 {
242         ADS_STATUS status;
243         LDAPMessage *res = NULL;
244         char *dn = NULL;
245
246         if (!r->in.machine_name) {
247                 return ADS_ERROR(LDAP_NO_MEMORY);
248         }
249
250         status = ads_find_machine_acct(r->in.ads,
251                                        &res,
252                                        r->in.machine_name);
253         if (!ADS_ERR_OK(status)) {
254                 return status;
255         }
256
257         if (ads_count_replies(r->in.ads, res) != 1) {
258                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
259                 goto done;
260         }
261
262         dn = ads_get_dn(r->in.ads, res);
263         if (!dn) {
264                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
265                 goto done;
266         }
267
268         r->out.dn = talloc_strdup(mem_ctx, dn);
269         if (!r->out.dn) {
270                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
271                 goto done;
272         }
273
274  done:
275         ads_msgfree(r->in.ads, res);
276         ads_memfree(r->in.ads, dn);
277
278         return status;
279 }
280
281 /****************************************************************
282 ****************************************************************/
283
284 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
285                                               struct libnet_JoinCtx *r)
286 {
287         ADS_STATUS status;
288         ADS_MODLIST mods;
289         fstring my_fqdn;
290         const char *spn_array[3] = {NULL, NULL, NULL};
291         char *spn = NULL;
292
293         if (!r->in.ads) {
294                 status = libnet_join_connect_ads(mem_ctx, r);
295                 if (!ADS_ERR_OK(status)) {
296                         return status;
297                 }
298         }
299
300         status = libnet_join_find_machine_acct(mem_ctx, r);
301         if (!ADS_ERR_OK(status)) {
302                 return status;
303         }
304
305         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
306         if (!spn) {
307                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
308         }
309         strupper_m(spn);
310         spn_array[0] = spn;
311
312         if (name_to_fqdn(my_fqdn, r->in.machine_name) &&
313             !strequal(my_fqdn, r->in.machine_name)) {
314
315                 strlower_m(my_fqdn);
316                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
317                 if (!spn) {
318                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
319                 }
320                 spn_array[1] = spn;
321         }
322
323         mods = ads_init_mods(mem_ctx);
324         if (!mods) {
325                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
326         }
327
328         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
329         if (!ADS_ERR_OK(status)) {
330                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
331         }
332
333         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
334                                  spn_array);
335         if (!ADS_ERR_OK(status)) {
336                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
337         }
338
339         return ads_gen_mod(r->in.ads, r->out.dn, mods);
340 }
341
342 /****************************************************************
343 ****************************************************************/
344
345 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
346                                               struct libnet_JoinCtx *r)
347 {
348         ADS_STATUS status;
349         ADS_MODLIST mods;
350
351         if (!r->in.create_upn) {
352                 return ADS_SUCCESS;
353         }
354
355         if (!r->in.ads) {
356                 status = libnet_join_connect_ads(mem_ctx, r);
357                 if (!ADS_ERR_OK(status)) {
358                         return status;
359                 }
360         }
361
362         status = libnet_join_find_machine_acct(mem_ctx, r);
363         if (!ADS_ERR_OK(status)) {
364                 return status;
365         }
366
367         if (!r->in.upn) {
368                 r->in.upn = talloc_asprintf(mem_ctx,
369                                             "host/%s@%s",
370                                             r->in.machine_name,
371                                             r->out.dns_domain_name);
372                 if (!r->in.upn) {
373                         return ADS_ERROR(LDAP_NO_MEMORY);
374                 }
375         }
376
377         mods = ads_init_mods(mem_ctx);
378         if (!mods) {
379                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
380         }
381
382         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
383         if (!ADS_ERR_OK(status)) {
384                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
385         }
386
387         return ads_gen_mod(r->in.ads, r->out.dn, mods);
388 }
389
390
391 /****************************************************************
392 ****************************************************************/
393
394 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
395                                                 struct libnet_JoinCtx *r)
396 {
397         ADS_STATUS status;
398         ADS_MODLIST mods;
399         char *os_sp = NULL;
400
401         if (!r->in.os_name || !r->in.os_version ) {
402                 return ADS_SUCCESS;
403         }
404
405         if (!r->in.ads) {
406                 status = libnet_join_connect_ads(mem_ctx, r);
407                 if (!ADS_ERR_OK(status)) {
408                         return status;
409                 }
410         }
411
412         status = libnet_join_find_machine_acct(mem_ctx, r);
413         if (!ADS_ERR_OK(status)) {
414                 return status;
415         }
416
417         mods = ads_init_mods(mem_ctx);
418         if (!mods) {
419                 return ADS_ERROR(LDAP_NO_MEMORY);
420         }
421
422         os_sp = talloc_asprintf(mem_ctx, "Samba %s", SAMBA_VERSION_STRING);
423         if (!os_sp) {
424                 return ADS_ERROR(LDAP_NO_MEMORY);
425         }
426
427         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
428                              r->in.os_name);
429         if (!ADS_ERR_OK(status)) {
430                 return status;
431         }
432
433         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
434                              r->in.os_version);
435         if (!ADS_ERR_OK(status)) {
436                 return status;
437         }
438
439         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
440                              os_sp);
441         if (!ADS_ERR_OK(status)) {
442                 return status;
443         }
444
445         return ads_gen_mod(r->in.ads, r->out.dn, mods);
446 }
447
448 /****************************************************************
449 ****************************************************************/
450
451 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
452                                       struct libnet_JoinCtx *r)
453 {
454         if (!lp_use_kerberos_keytab()) {
455                 return true;
456         }
457
458         if (!ads_keytab_create_default(r->in.ads)) {
459                 return false;
460         }
461
462         return true;
463 }
464
465 /****************************************************************
466 ****************************************************************/
467
468 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
469                                                  struct libnet_JoinCtx *r)
470 {
471         uint32_t domain_func;
472         ADS_STATUS status;
473         const char *salt = NULL;
474         char *std_salt = NULL;
475
476         status = ads_domain_func_level(r->in.ads, &domain_func);
477         if (!ADS_ERR_OK(status)) {
478                 libnet_join_set_error_string(mem_ctx, r,
479                         "failed to determine domain functional level: %s",
480                         ads_errstr(status));
481                 return false;
482         }
483
484         std_salt = kerberos_standard_des_salt();
485         if (!std_salt) {
486                 libnet_join_set_error_string(mem_ctx, r,
487                         "failed to obtain standard DES salt");
488                 return false;
489         }
490
491         salt = talloc_strdup(mem_ctx, std_salt);
492         if (!salt) {
493                 return false;
494         }
495
496         SAFE_FREE(std_salt);
497
498         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
499                 char *upn;
500
501                 upn = ads_get_upn(r->in.ads, mem_ctx,
502                                   r->in.machine_name);
503                 if (upn) {
504                         salt = talloc_strdup(mem_ctx, upn);
505                         if (!salt) {
506                                 return false;
507                         }
508                 }
509         }
510
511         return kerberos_secrets_store_des_salt(salt);
512 }
513
514 /****************************************************************
515 ****************************************************************/
516
517 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
518                                                   struct libnet_JoinCtx *r)
519 {
520         ADS_STATUS status;
521
522         status = libnet_join_set_machine_spn(mem_ctx, r);
523         if (!ADS_ERR_OK(status)) {
524                 libnet_join_set_error_string(mem_ctx, r,
525                         "failed to set machine spn: %s",
526                         ads_errstr(status));
527                 return status;
528         }
529
530         status = libnet_join_set_os_attributes(mem_ctx, r);
531         if (!ADS_ERR_OK(status)) {
532                 libnet_join_set_error_string(mem_ctx, r,
533                         "failed to set machine os attributes: %s",
534                         ads_errstr(status));
535                 return status;
536         }
537
538         status = libnet_join_set_machine_upn(mem_ctx, r);
539         if (!ADS_ERR_OK(status)) {
540                 libnet_join_set_error_string(mem_ctx, r,
541                         "failed to set machine upn: %s",
542                         ads_errstr(status));
543                 return status;
544         }
545
546         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
547                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
548         }
549
550         if (!libnet_join_create_keytab(mem_ctx, r)) {
551                 libnet_join_set_error_string(mem_ctx, r,
552                         "failed to create kerberos keytab");
553                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
554         }
555
556         return ADS_SUCCESS;
557 }
558 #endif /* WITH_ADS */
559
560 /****************************************************************
561 ****************************************************************/
562
563 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
564                                                  struct libnet_JoinCtx *r)
565 {
566         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
567                                       r->out.domain_sid))
568         {
569                 return false;
570         }
571
572         if (!secrets_store_machine_password(r->in.machine_password,
573                                             r->out.netbios_domain_name,
574                                             SEC_CHAN_WKSTA))
575         {
576                 return false;
577         }
578
579         return true;
580 }
581
582 /****************************************************************
583 ****************************************************************/
584
585 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
586                                            struct libnet_JoinCtx *r)
587 {
588         struct cli_state *cli = NULL;
589         struct rpc_pipe_client *pipe_hnd = NULL;
590         POLICY_HND sam_pol, domain_pol, user_pol, lsa_pol;
591         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
592         char *acct_name;
593         const char *const_acct_name;
594         uint32 user_rid;
595         uint32 num_rids, *name_types, *user_rids;
596         uint32 flags = 0x3e8;
597         uint32 acb_info = ACB_WSTRUST;
598         uint32 fields_present;
599         uchar pwbuf[532];
600         SAM_USERINFO_CTR ctr;
601         SAM_USER_INFO_25 p25;
602         const int infolevel = 25;
603         struct MD5Context md5ctx;
604         uchar md5buffer[16];
605         DATA_BLOB digested_session_key;
606         uchar md4_trust_password[16];
607
608         if (!r->in.machine_password) {
609                 r->in.machine_password = talloc_strdup(mem_ctx, generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH));
610                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
611         }
612
613         status = cli_full_connection(&cli, NULL,
614                                      r->in.dc_name,
615                                      NULL, 0,
616                                      "IPC$", "IPC",
617                                      r->in.admin_account,
618                                      NULL,
619                                      r->in.admin_password,
620                                      0,
621                                      Undefined, NULL);
622
623         if (!NT_STATUS_IS_OK(status)) {
624                 goto done;
625         }
626
627         pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_LSARPC, &status);
628         if (!pipe_hnd) {
629                 goto done;
630         }
631
632         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, True,
633                                         SEC_RIGHTS_MAXIMUM_ALLOWED, &lsa_pol);
634         if (!NT_STATUS_IS_OK(status)) {
635                 goto done;
636         }
637
638         status = rpccli_lsa_query_info_policy2(pipe_hnd, mem_ctx, &lsa_pol,
639                                                12,
640                                                &r->out.netbios_domain_name,
641                                                &r->out.dns_domain_name,
642                                                NULL,
643                                                NULL,
644                                                &r->out.domain_sid);
645
646         if (NT_STATUS_IS_OK(status)) {
647                 r->out.domain_is_ad = true;
648         }
649
650         if (!NT_STATUS_IS_OK(status)) {
651                 status = rpccli_lsa_query_info_policy(pipe_hnd, mem_ctx, &lsa_pol,
652                                                       5,
653                                                       &r->out.netbios_domain_name,
654                                                       &r->out.domain_sid);
655                 if (!NT_STATUS_IS_OK(status)) {
656                         goto done;
657                 }
658         }
659
660         rpccli_lsa_Close(pipe_hnd, mem_ctx, &lsa_pol);
661         cli_rpc_pipe_close(pipe_hnd);
662
663         pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &status);
664         if (!pipe_hnd) {
665                 goto done;
666         }
667
668         status = rpccli_samr_connect(pipe_hnd, mem_ctx,
669                                      SEC_RIGHTS_MAXIMUM_ALLOWED, &sam_pol);
670         if (!NT_STATUS_IS_OK(status)) {
671                 goto done;
672         }
673
674         status = rpccli_samr_open_domain(pipe_hnd, mem_ctx, &sam_pol,
675                                          SEC_RIGHTS_MAXIMUM_ALLOWED,
676                                          r->out.domain_sid,
677                                          &domain_pol);
678         if (!NT_STATUS_IS_OK(status)) {
679                 goto done;
680         }
681
682         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
683         strlower_m(acct_name);
684         const_acct_name = acct_name;
685
686         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
687                 uint32_t acct_flags =
688                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
689                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
690                         SAMR_USER_ACCESS_SET_PASSWORD |
691                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
692                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
693
694                 status = rpccli_samr_create_dom_user(pipe_hnd, mem_ctx,
695                                                      &domain_pol,
696                                                      acct_name, ACB_WSTRUST,
697                                                      acct_flags, &user_pol,
698                                                      &user_rid);
699                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
700                         if (!(r->in.join_flags &
701                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
702                                 goto done;
703                         }
704                 }
705
706                 if (NT_STATUS_IS_OK(status)) {
707                         rpccli_samr_close(pipe_hnd, mem_ctx, &user_pol);
708                 }
709         }
710
711         status = rpccli_samr_lookup_names(pipe_hnd, mem_ctx,
712                                           &domain_pol, flags, 1,
713                                           &const_acct_name,
714                                           &num_rids, &user_rids, &name_types);
715         if (!NT_STATUS_IS_OK(status)) {
716                 goto done;
717         }
718
719         if (name_types[0] != SID_NAME_USER) {
720                 status = NT_STATUS_INVALID_WORKSTATION;
721                 goto done;
722         }
723
724         user_rid = user_rids[0];
725
726         status = rpccli_samr_open_user(pipe_hnd, mem_ctx, &domain_pol,
727                                        SEC_RIGHTS_MAXIMUM_ALLOWED, user_rid,
728                                        &user_pol);
729         if (!NT_STATUS_IS_OK(status)) {
730                 goto done;
731         }
732
733         E_md4hash(r->in.machine_password, md4_trust_password);
734         encode_pw_buffer(pwbuf, r->in.machine_password, STR_UNICODE);
735
736         generate_random_buffer((uint8*)md5buffer, sizeof(md5buffer));
737         digested_session_key = data_blob_talloc(mem_ctx, 0, 16);
738
739         MD5Init(&md5ctx);
740         MD5Update(&md5ctx, md5buffer, sizeof(md5buffer));
741         MD5Update(&md5ctx, cli->user_session_key.data,
742                   cli->user_session_key.length);
743         MD5Final(digested_session_key.data, &md5ctx);
744
745         SamOEMhashBlob(pwbuf, sizeof(pwbuf), &digested_session_key);
746         memcpy(&pwbuf[516], md5buffer, sizeof(md5buffer));
747
748         acb_info |= ACB_PWNOEXP;
749         if (r->out.domain_is_ad) {
750 #if !defined(ENCTYPE_ARCFOUR_HMAC)
751                 acb_info |= ACB_USE_DES_KEY_ONLY;
752 #endif
753                 ;;
754         }
755
756         ZERO_STRUCT(ctr);
757         ZERO_STRUCT(p25);
758
759         fields_present = ACCT_NT_PWD_SET | ACCT_LM_PWD_SET | ACCT_FLAGS;
760         init_sam_user_info25P(&p25, fields_present, acb_info, (char *)pwbuf);
761
762         ctr.switch_value = infolevel;
763         ctr.info.id25    = &p25;
764
765         status = rpccli_samr_set_userinfo2(pipe_hnd, mem_ctx, &user_pol,
766                                            infolevel, &cli->user_session_key,
767                                            &ctr);
768         if (!NT_STATUS_IS_OK(status)) {
769                 goto done;
770         }
771
772         rpccli_samr_close(pipe_hnd, mem_ctx, &user_pol);
773         cli_rpc_pipe_close(pipe_hnd);
774
775         status = NT_STATUS_OK;
776  done:
777         if (cli) {
778                 cli_shutdown(cli);
779         }
780
781         return status;
782 }
783
784 /****************************************************************
785 ****************************************************************/
786
787 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
788                                                     struct libnet_UnjoinCtx *r)
789 {
790         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
791                 return false;
792         }
793
794         if (!secrets_delete_domain_sid(lp_workgroup())) {
795                 return false;
796         }
797
798         return true;
799 }
800
801 /****************************************************************
802 ****************************************************************/
803
804 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
805                                              struct libnet_UnjoinCtx *r)
806 {
807         struct cli_state *cli = NULL;
808         struct rpc_pipe_client *pipe_hnd = NULL;
809         POLICY_HND sam_pol, domain_pol, user_pol;
810         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
811         char *acct_name;
812         uint32 flags = 0x3e8;
813         const char *const_acct_name;
814         uint32 user_rid;
815         uint32 num_rids, *name_types, *user_rids;
816         SAM_USERINFO_CTR ctr, *qctr = NULL;
817         SAM_USER_INFO_16 p16;
818
819         status = cli_full_connection(&cli, NULL,
820                                      r->in.dc_name,
821                                      NULL, 0,
822                                      "IPC$", "IPC",
823                                      r->in.admin_account,
824                                      NULL,
825                                      r->in.admin_password,
826                                      0, Undefined, NULL);
827
828         if (!NT_STATUS_IS_OK(status)) {
829                 goto done;
830         }
831
832         pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &status);
833         if (!pipe_hnd) {
834                 goto done;
835         }
836
837         status = rpccli_samr_connect(pipe_hnd, mem_ctx,
838                                      SEC_RIGHTS_MAXIMUM_ALLOWED, &sam_pol);
839         if (!NT_STATUS_IS_OK(status)) {
840                 goto done;
841         }
842
843         status = rpccli_samr_open_domain(pipe_hnd, mem_ctx, &sam_pol,
844                                          SEC_RIGHTS_MAXIMUM_ALLOWED,
845                                          r->in.domain_sid,
846                                          &domain_pol);
847         if (!NT_STATUS_IS_OK(status)) {
848                 goto done;
849         }
850
851         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
852         strlower_m(acct_name);
853         const_acct_name = acct_name;
854
855         status = rpccli_samr_lookup_names(pipe_hnd, mem_ctx,
856                                           &domain_pol, flags, 1,
857                                           &const_acct_name,
858                                           &num_rids, &user_rids, &name_types);
859         if (!NT_STATUS_IS_OK(status)) {
860                 goto done;
861         }
862
863         if (name_types[0] != SID_NAME_USER) {
864                 status = NT_STATUS_INVALID_WORKSTATION;
865                 goto done;
866         }
867
868         user_rid = user_rids[0];
869
870         status = rpccli_samr_open_user(pipe_hnd, mem_ctx, &domain_pol,
871                                        SEC_RIGHTS_MAXIMUM_ALLOWED,
872                                        user_rid, &user_pol);
873         if (!NT_STATUS_IS_OK(status)) {
874                 goto done;
875         }
876
877         status = rpccli_samr_query_userinfo(pipe_hnd, mem_ctx,
878                                             &user_pol, 16, &qctr);
879         if (!NT_STATUS_IS_OK(status)) {
880                 rpccli_samr_close(pipe_hnd, mem_ctx, &user_pol);
881                 goto done;
882         }
883
884         ZERO_STRUCT(ctr);
885         ctr.switch_value = 16;
886         ctr.info.id16 = &p16;
887
888         p16.acb_info = qctr->info.id16->acb_info | ACB_DISABLED;
889
890         status = rpccli_samr_set_userinfo2(pipe_hnd, mem_ctx, &user_pol, 16,
891                                            &cli->user_session_key, &ctr);
892
893         rpccli_samr_close(pipe_hnd, mem_ctx, &user_pol);
894
895 done:
896         if (pipe_hnd) {
897                 rpccli_samr_close(pipe_hnd, mem_ctx, &domain_pol);
898                 rpccli_samr_close(pipe_hnd, mem_ctx, &sam_pol);
899                 cli_rpc_pipe_close(pipe_hnd);
900         }
901
902         if (cli) {
903                 cli_shutdown(cli);
904         }
905
906         return status;
907 }
908
909 /****************************************************************
910 ****************************************************************/
911
912 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
913 {
914         WERROR werr;
915         struct libnet_conf_ctx *ctx;
916
917         werr = libnet_conf_open(r, &ctx);
918         if (!W_ERROR_IS_OK(werr)) {
919                 goto done;
920         }
921
922         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
923
924                 werr = libnet_conf_set_global_parameter(ctx, "security", "user");
925                 if (!W_ERROR_IS_OK(werr)) {
926                         goto done;
927                 }
928
929                 werr = libnet_conf_set_global_parameter(ctx, "workgroup",
930                                                         r->in.domain_name);
931                 goto done;
932         }
933
934         werr = libnet_conf_set_global_parameter(ctx, "security", "domain");
935         if (!W_ERROR_IS_OK(werr)) {
936                 goto done;
937         }
938
939         werr = libnet_conf_set_global_parameter(ctx, "workgroup",
940                                                 r->out.netbios_domain_name);
941         if (!W_ERROR_IS_OK(werr)) {
942                 goto done;
943         }
944
945         if (r->out.domain_is_ad) {
946                 werr = libnet_conf_set_global_parameter(ctx, "security", "ads");
947                 if (!W_ERROR_IS_OK(werr)) {
948                         goto done;
949                 }
950
951                 werr = libnet_conf_set_global_parameter(ctx, "realm",
952                                                         r->out.dns_domain_name);
953         }
954
955 done:
956         libnet_conf_close(ctx);
957         return werr;
958 }
959
960 /****************************************************************
961 ****************************************************************/
962
963 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
964 {
965         WERROR werr = WERR_OK;
966         struct libnet_conf_ctx *ctx;
967
968         werr = libnet_conf_open(r, &ctx);
969         if (!W_ERROR_IS_OK(werr)) {
970                 goto done;
971         }
972
973         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
974
975                 werr = libnet_conf_set_global_parameter(ctx, "security", "user");
976                 if (!W_ERROR_IS_OK(werr)) {
977                         goto done;
978                 }
979         }
980
981         libnet_conf_delete_global_parameter(ctx, "realm");
982
983 done:
984         libnet_conf_close(ctx);
985         return werr;
986 }
987
988 /****************************************************************
989 ****************************************************************/
990
991 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
992 {
993         WERROR werr;
994
995         if (!W_ERROR_IS_OK(r->out.result)) {
996                 return r->out.result;
997         }
998
999         if (!r->in.modify_config) {
1000                 return WERR_OK;
1001         }
1002
1003         werr = do_join_modify_vals_config(r);
1004         if (!W_ERROR_IS_OK(werr)) {
1005                 return werr;
1006         }
1007
1008         r->out.modified_config = true;
1009         r->out.result = werr;
1010
1011         return werr;
1012 }
1013
1014 /****************************************************************
1015 ****************************************************************/
1016
1017 static WERROR do_UnjoinConfig(struct libnet_UnjoinCtx *r)
1018 {
1019         WERROR werr;
1020
1021         if (!W_ERROR_IS_OK(r->out.result)) {
1022                 return r->out.result;
1023         }
1024
1025         if (!r->in.modify_config) {
1026                 return WERR_OK;
1027         }
1028
1029         werr = do_unjoin_modify_vals_config(r);
1030         if (!W_ERROR_IS_OK(werr)) {
1031                 return werr;
1032         }
1033
1034         r->out.modified_config = true;
1035         r->out.result = werr;
1036
1037         return werr;
1038 }
1039
1040 /****************************************************************
1041 ****************************************************************/
1042
1043 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1044                                          struct libnet_JoinCtx *r)
1045 {
1046
1047         if (!r->in.domain_name) {
1048                 return WERR_INVALID_PARAM;
1049         }
1050
1051         if (r->in.modify_config && !lp_config_backend_is_registry()) {
1052                 return WERR_NOT_SUPPORTED;
1053         }
1054
1055         if (IS_DC) {
1056                 return WERR_SETUP_DOMAIN_CONTROLLER;
1057         }
1058
1059         if (!secrets_init()) {
1060                 libnet_join_set_error_string(mem_ctx, r,
1061                         "Unable to open secrets database");
1062                 return WERR_CAN_NOT_COMPLETE;
1063         }
1064
1065         return WERR_OK;
1066 }
1067
1068 /****************************************************************
1069 ****************************************************************/
1070
1071 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1072                                           struct libnet_JoinCtx *r)
1073 {
1074         WERROR werr;
1075
1076         if (!W_ERROR_IS_OK(r->out.result)) {
1077                 return r->out.result;
1078         }
1079
1080         werr = do_JoinConfig(r);
1081         if (!W_ERROR_IS_OK(werr)) {
1082                 return werr;
1083         }
1084
1085         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1086                 saf_store(r->in.domain_name, r->in.dc_name);
1087         }
1088
1089         return WERR_OK;
1090 }
1091
1092 /****************************************************************
1093 ****************************************************************/
1094
1095 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1096 {
1097         if (r->in.ads) {
1098                 ads_destroy(&r->in.ads);
1099         }
1100
1101         return 0;
1102 }
1103
1104 /****************************************************************
1105 ****************************************************************/
1106
1107 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1108 {
1109         if (r->in.ads) {
1110                 ads_destroy(&r->in.ads);
1111         }
1112
1113         return 0;
1114 }
1115
1116 /****************************************************************
1117 ****************************************************************/
1118
1119 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1120                            struct libnet_JoinCtx **r)
1121 {
1122         struct libnet_JoinCtx *ctx;
1123
1124         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1125         if (!ctx) {
1126                 return WERR_NOMEM;
1127         }
1128
1129         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1130
1131         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1132         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1133
1134         *r = ctx;
1135
1136         return WERR_OK;
1137 }
1138
1139 /****************************************************************
1140 ****************************************************************/
1141
1142 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1143                              struct libnet_UnjoinCtx **r)
1144 {
1145         struct libnet_UnjoinCtx *ctx;
1146
1147         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1148         if (!ctx) {
1149                 return WERR_NOMEM;
1150         }
1151
1152         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1153
1154         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1155         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1156
1157         *r = ctx;
1158
1159         return WERR_OK;
1160 }
1161
1162 /****************************************************************
1163 ****************************************************************/
1164
1165 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1166                                 struct libnet_JoinCtx *r)
1167 {
1168         NTSTATUS status;
1169 #ifdef WITH_ADS
1170         ADS_STATUS ads_status;
1171 #endif /* WITH_ADS */
1172
1173         if (!r->in.dc_name) {
1174                 struct DS_DOMAIN_CONTROLLER_INFO *info;
1175                 status = dsgetdcname(mem_ctx,
1176                                      r->in.domain_name,
1177                                      NULL,
1178                                      NULL,
1179                                      DS_DIRECTORY_SERVICE_REQUIRED |
1180                                      DS_WRITABLE_REQUIRED |
1181                                      DS_RETURN_DNS_NAME,
1182                                      &info);
1183                 if (!NT_STATUS_IS_OK(status)) {
1184                         libnet_join_set_error_string(mem_ctx, r,
1185                                 "failed to find DC for domain %s",
1186                                 r->in.domain_name,
1187                                 get_friendly_nt_error_msg(status));
1188                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1189                 }
1190
1191                 r->in.dc_name = talloc_strdup(mem_ctx,
1192                                               info->domain_controller_name);
1193                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1194         }
1195
1196 #ifdef WITH_ADS
1197         if (r->in.account_ou) {
1198
1199                 ads_status = libnet_join_connect_ads(mem_ctx, r);
1200                 if (!ADS_ERR_OK(ads_status)) {
1201                         return WERR_DEFAULT_JOIN_REQUIRED;
1202                 }
1203
1204                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1205                 if (!ADS_ERR_OK(ads_status)) {
1206                         libnet_join_set_error_string(mem_ctx, r,
1207                                 "failed to precreate account in ou %s: %s",
1208                                 r->in.account_ou,
1209                                 ads_errstr(ads_status));
1210                         return WERR_DEFAULT_JOIN_REQUIRED;
1211                 }
1212
1213                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
1214         }
1215 #endif /* WITH_ADS */
1216
1217         status = libnet_join_joindomain_rpc(mem_ctx, r);
1218         if (!NT_STATUS_IS_OK(status)) {
1219                 libnet_join_set_error_string(mem_ctx, r,
1220                         "failed to join domain over rpc: %s",
1221                         get_friendly_nt_error_msg(status));
1222                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1223                         return WERR_SETUP_ALREADY_JOINED;
1224                 }
1225                 return ntstatus_to_werror(status);
1226         }
1227
1228         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
1229                 return WERR_SETUP_NOT_JOINED;
1230         }
1231
1232 #ifdef WITH_ADS
1233         if (r->out.domain_is_ad) {
1234                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1235                 if (!ADS_ERR_OK(ads_status)) {
1236                         return WERR_GENERAL_FAILURE;
1237                 }
1238         }
1239 #endif /* WITH_ADS */
1240
1241         return WERR_OK;
1242 }
1243
1244 /****************************************************************
1245 ****************************************************************/
1246
1247 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
1248                    struct libnet_JoinCtx *r)
1249 {
1250         WERROR werr;
1251
1252         if (r->in.debug) {
1253                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
1254         }
1255
1256         werr = libnet_join_pre_processing(mem_ctx, r);
1257         if (!W_ERROR_IS_OK(werr)) {
1258                 goto done;
1259         }
1260
1261         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1262                 werr = libnet_DomainJoin(mem_ctx, r);
1263                 if (!W_ERROR_IS_OK(werr)) {
1264                         goto done;
1265                 }
1266         }
1267
1268         werr = libnet_join_post_processing(mem_ctx, r);
1269         if (!W_ERROR_IS_OK(werr)) {
1270                 goto done;
1271         }
1272  done:
1273         r->out.result = werr;
1274
1275         if (r->in.debug) {
1276                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
1277         }
1278         return werr;
1279 }
1280
1281 /****************************************************************
1282 ****************************************************************/
1283
1284 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
1285                                   struct libnet_UnjoinCtx *r)
1286 {
1287         NTSTATUS status;
1288
1289         if (!r->in.domain_sid) {
1290                 struct dom_sid sid;
1291                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
1292                         libnet_unjoin_set_error_string(mem_ctx, r,
1293                                 "Unable to fetch domain sid: are we joined?");
1294                         return WERR_SETUP_NOT_JOINED;
1295                 }
1296                 r->in.domain_sid = sid_dup_talloc(mem_ctx, &sid);
1297                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
1298         }
1299
1300         if (!r->in.dc_name) {
1301                 struct DS_DOMAIN_CONTROLLER_INFO *info;
1302                 status = dsgetdcname(mem_ctx,
1303                                      r->in.domain_name,
1304                                      NULL,
1305                                      NULL,
1306                                      DS_DIRECTORY_SERVICE_REQUIRED |
1307                                      DS_WRITABLE_REQUIRED |
1308                                      DS_RETURN_DNS_NAME,
1309                                      &info);
1310                 if (!NT_STATUS_IS_OK(status)) {
1311                         libnet_unjoin_set_error_string(mem_ctx, r,
1312                                 "failed to find DC for domain %s",
1313                                 r->in.domain_name,
1314                                 get_friendly_nt_error_msg(status));
1315                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1316                 }
1317
1318                 r->in.dc_name = talloc_strdup(mem_ctx,
1319                                               info->domain_controller_name);
1320                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1321         }
1322
1323         status = libnet_join_unjoindomain_rpc(mem_ctx, r);
1324         if (!NT_STATUS_IS_OK(status)) {
1325                 libnet_unjoin_set_error_string(mem_ctx, r,
1326                         "failed to disable machine account via rpc: %s",
1327                         get_friendly_nt_error_msg(status));
1328                 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
1329                         return WERR_SETUP_NOT_JOINED;
1330                 }
1331                 return ntstatus_to_werror(status);
1332         }
1333
1334 #ifdef WITH_ADS
1335         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
1336                 ADS_STATUS ads_status;
1337                 libnet_unjoin_connect_ads(mem_ctx, r);
1338                 ads_status = libnet_unjoin_remove_machine_acct(mem_ctx, r);
1339                 if (!ADS_ERR_OK(ads_status)) {
1340                         libnet_unjoin_set_error_string(mem_ctx, r,
1341                                 "failed to remove machine account from AD: %s",
1342                                 ads_errstr(ads_status));
1343                 }
1344         }
1345 #endif /* WITH_ADS */
1346
1347         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
1348
1349         return WERR_OK;
1350 }
1351
1352 /****************************************************************
1353 ****************************************************************/
1354
1355 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
1356                                            struct libnet_UnjoinCtx *r)
1357 {
1358         if (r->in.modify_config && !lp_config_backend_is_registry()) {
1359                 return WERR_NOT_SUPPORTED;
1360         }
1361
1362         if (!secrets_init()) {
1363                 libnet_unjoin_set_error_string(mem_ctx, r,
1364                         "Unable to open secrets database");
1365                 return WERR_CAN_NOT_COMPLETE;
1366         }
1367
1368         return WERR_OK;
1369 }
1370
1371
1372 /****************************************************************
1373 ****************************************************************/
1374
1375 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
1376                      struct libnet_UnjoinCtx *r)
1377 {
1378         WERROR werr;
1379
1380         if (r->in.debug) {
1381                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
1382         }
1383
1384         werr = libnet_unjoin_pre_processing(mem_ctx, r);
1385         if (!W_ERROR_IS_OK(werr)) {
1386                 goto done;
1387         }
1388
1389         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1390                 werr = libnet_DomainUnjoin(mem_ctx, r);
1391                 if (!W_ERROR_IS_OK(werr)) {
1392                         goto done;
1393                 }
1394         }
1395
1396         werr = do_UnjoinConfig(r);
1397         if (!W_ERROR_IS_OK(werr)) {
1398                 goto done;
1399         }
1400
1401  done:
1402         r->out.result = werr;
1403
1404         if (r->in.debug) {
1405                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
1406         }
1407
1408         return werr;
1409 }