libnetjoin: Merge in comments, debugs and missing code from original join code.
[jra/samba/.git] / source3 / 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 #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->in.domain_name,
146                                     r->in.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_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
211         if (!ADS_ERR_OK(status)) {
212                 return status;
213         }
214
215         if (ads_count_replies(r->in.ads, res) != 1) {
216                 ads_msgfree(r->in.ads, res);
217                 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
218         }
219
220         ads_msgfree(r->in.ads, res);
221
222         /* Attempt to create the machine account and bail if this fails.
223            Assume that the admin wants exactly what they requested */
224
225         status = ads_create_machine_acct(r->in.ads,
226                                          r->in.machine_name,
227                                          r->in.account_ou);
228
229         if (ADS_ERR_OK(status)) {
230                 DEBUG(1,("machine account creation created\n"));
231                 return status;
232         } else  if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
233                     (status.err.rc == LDAP_ALREADY_EXISTS)) {
234                 status = ADS_SUCCESS;
235         }
236
237         if (!ADS_ERR_OK(status)) {
238                 DEBUG(1,("machine account creation failed\n"));
239                 return status;
240         }
241
242         status = ads_move_machine_acct(r->in.ads,
243                                        r->in.machine_name,
244                                        r->in.account_ou,
245                                        &moved);
246         if (!ADS_ERR_OK(status)) {
247                 DEBUG(1,("failure to locate/move pre-existing "
248                         "machine account\n"));
249                 return status;
250         }
251
252         DEBUG(1,("The machine account %s the specified OU.\n",
253                 moved ? "was moved into" : "already exists in"));
254
255         return status;
256 }
257
258 /****************************************************************
259 ****************************************************************/
260
261 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
262                                                     struct libnet_UnjoinCtx *r)
263 {
264         ADS_STATUS status;
265
266         if (!r->in.ads) {
267                 status = libnet_unjoin_connect_ads(mem_ctx, r);
268                 if (!ADS_ERR_OK(status)) {
269                         return status;
270                 }
271         }
272
273         status = ads_leave_realm(r->in.ads, r->in.machine_name);
274         if (!ADS_ERR_OK(status)) {
275                 libnet_unjoin_set_error_string(mem_ctx, r,
276                         "failed to leave realm: %s",
277                         ads_errstr(status));
278                 return status;
279         }
280
281         return ADS_SUCCESS;
282 }
283
284 /****************************************************************
285 ****************************************************************/
286
287 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
288                                                 struct libnet_JoinCtx *r)
289 {
290         ADS_STATUS status;
291         LDAPMessage *res = NULL;
292         char *dn = NULL;
293
294         if (!r->in.machine_name) {
295                 return ADS_ERROR(LDAP_NO_MEMORY);
296         }
297
298         status = ads_find_machine_acct(r->in.ads,
299                                        &res,
300                                        r->in.machine_name);
301         if (!ADS_ERR_OK(status)) {
302                 return status;
303         }
304
305         if (ads_count_replies(r->in.ads, res) != 1) {
306                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
307                 goto done;
308         }
309
310         dn = ads_get_dn(r->in.ads, res);
311         if (!dn) {
312                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
313                 goto done;
314         }
315
316         r->out.dn = talloc_strdup(mem_ctx, dn);
317         if (!r->out.dn) {
318                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
319                 goto done;
320         }
321
322  done:
323         ads_msgfree(r->in.ads, res);
324         ads_memfree(r->in.ads, dn);
325
326         return status;
327 }
328
329 /****************************************************************
330  Set a machines dNSHostName and servicePrincipalName attributes
331 ****************************************************************/
332
333 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
334                                               struct libnet_JoinCtx *r)
335 {
336         ADS_STATUS status;
337         ADS_MODLIST mods;
338         fstring my_fqdn;
339         const char *spn_array[3] = {NULL, NULL, NULL};
340         char *spn = NULL;
341
342         /* Find our DN */
343
344         status = libnet_join_find_machine_acct(mem_ctx, r);
345         if (!ADS_ERR_OK(status)) {
346                 return status;
347         }
348
349         /* Windows only creates HOST/shortname & HOST/fqdn. */
350
351         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
352         if (!spn) {
353                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
354         }
355         strupper_m(spn);
356         spn_array[0] = spn;
357
358         if (name_to_fqdn(my_fqdn, r->in.machine_name) &&
359             !strequal(my_fqdn, r->in.machine_name)) {
360
361                 strlower_m(my_fqdn);
362                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
363                 if (!spn) {
364                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
365                 }
366                 spn_array[1] = spn;
367         }
368
369         mods = ads_init_mods(mem_ctx);
370         if (!mods) {
371                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
372         }
373
374         /* fields of primary importance */
375
376         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
377         if (!ADS_ERR_OK(status)) {
378                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
379         }
380
381         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
382                                  spn_array);
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 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
394                                               struct libnet_JoinCtx *r)
395 {
396         ADS_STATUS status;
397         ADS_MODLIST mods;
398
399         if (!r->in.create_upn) {
400                 return ADS_SUCCESS;
401         }
402
403         /* Find our DN */
404
405         status = libnet_join_find_machine_acct(mem_ctx, r);
406         if (!ADS_ERR_OK(status)) {
407                 return status;
408         }
409
410         if (!r->in.upn) {
411                 r->in.upn = talloc_asprintf(mem_ctx,
412                                             "host/%s@%s",
413                                             r->in.machine_name,
414                                             r->out.dns_domain_name);
415                 if (!r->in.upn) {
416                         return ADS_ERROR(LDAP_NO_MEMORY);
417                 }
418         }
419
420         /* now do the mods */
421
422         mods = ads_init_mods(mem_ctx);
423         if (!mods) {
424                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
425         }
426
427         /* fields of primary importance */
428
429         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
430         if (!ADS_ERR_OK(status)) {
431                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
432         }
433
434         return ads_gen_mod(r->in.ads, r->out.dn, mods);
435 }
436
437
438 /****************************************************************
439 ****************************************************************/
440
441 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
442                                                 struct libnet_JoinCtx *r)
443 {
444         ADS_STATUS status;
445         ADS_MODLIST mods;
446         char *os_sp = NULL;
447
448         if (!r->in.os_name || !r->in.os_version ) {
449                 return ADS_SUCCESS;
450         }
451
452         /* Find our DN */
453
454         status = libnet_join_find_machine_acct(mem_ctx, r);
455         if (!ADS_ERR_OK(status)) {
456                 return status;
457         }
458
459         /* now do the mods */
460
461         mods = ads_init_mods(mem_ctx);
462         if (!mods) {
463                 return ADS_ERROR(LDAP_NO_MEMORY);
464         }
465
466         os_sp = talloc_asprintf(mem_ctx, "Samba %s", SAMBA_VERSION_STRING);
467         if (!os_sp) {
468                 return ADS_ERROR(LDAP_NO_MEMORY);
469         }
470
471         /* fields of primary importance */
472
473         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
474                              r->in.os_name);
475         if (!ADS_ERR_OK(status)) {
476                 return status;
477         }
478
479         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
480                              r->in.os_version);
481         if (!ADS_ERR_OK(status)) {
482                 return status;
483         }
484
485         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
486                              os_sp);
487         if (!ADS_ERR_OK(status)) {
488                 return status;
489         }
490
491         return ads_gen_mod(r->in.ads, r->out.dn, mods);
492 }
493
494 /****************************************************************
495 ****************************************************************/
496
497 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
498                                       struct libnet_JoinCtx *r)
499 {
500         if (!lp_use_kerberos_keytab()) {
501                 return true;
502         }
503
504         if (!ads_keytab_create_default(r->in.ads)) {
505                 return false;
506         }
507
508         return true;
509 }
510
511 /****************************************************************
512 ****************************************************************/
513
514 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
515                                                  struct libnet_JoinCtx *r)
516 {
517         uint32_t domain_func;
518         ADS_STATUS status;
519         const char *salt = NULL;
520         char *std_salt = NULL;
521
522         status = ads_domain_func_level(r->in.ads, &domain_func);
523         if (!ADS_ERR_OK(status)) {
524                 libnet_join_set_error_string(mem_ctx, r,
525                         "failed to determine domain functional level: %s",
526                         ads_errstr(status));
527                 return false;
528         }
529
530         /* go ahead and setup the default salt */
531
532         std_salt = kerberos_standard_des_salt();
533         if (!std_salt) {
534                 libnet_join_set_error_string(mem_ctx, r,
535                         "failed to obtain standard DES salt");
536                 return false;
537         }
538
539         salt = talloc_strdup(mem_ctx, std_salt);
540         if (!salt) {
541                 return false;
542         }
543
544         SAFE_FREE(std_salt);
545
546         /* if it's a Windows functional domain, we have to look for the UPN */
547
548         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
549                 char *upn;
550
551                 upn = ads_get_upn(r->in.ads, mem_ctx,
552                                   r->in.machine_name);
553                 if (upn) {
554                         salt = talloc_strdup(mem_ctx, upn);
555                         if (!salt) {
556                                 return false;
557                         }
558                 }
559         }
560
561         return kerberos_secrets_store_des_salt(salt);
562 }
563
564 /****************************************************************
565 ****************************************************************/
566
567 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
568                                                   struct libnet_JoinCtx *r)
569 {
570         ADS_STATUS status;
571
572         if (!r->in.ads) {
573                 status = libnet_join_connect_ads(mem_ctx, r);
574                 if (!ADS_ERR_OK(status)) {
575                         return status;
576                 }
577         }
578
579         status = libnet_join_set_machine_spn(mem_ctx, r);
580         if (!ADS_ERR_OK(status)) {
581                 libnet_join_set_error_string(mem_ctx, r,
582                         "failed to set machine spn: %s",
583                         ads_errstr(status));
584                 return status;
585         }
586
587         status = libnet_join_set_os_attributes(mem_ctx, r);
588         if (!ADS_ERR_OK(status)) {
589                 libnet_join_set_error_string(mem_ctx, r,
590                         "failed to set machine os attributes: %s",
591                         ads_errstr(status));
592                 return status;
593         }
594
595         status = libnet_join_set_machine_upn(mem_ctx, r);
596         if (!ADS_ERR_OK(status)) {
597                 libnet_join_set_error_string(mem_ctx, r,
598                         "failed to set machine upn: %s",
599                         ads_errstr(status));
600                 return status;
601         }
602
603         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
604                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
605         }
606
607         if (!libnet_join_create_keytab(mem_ctx, r)) {
608                 libnet_join_set_error_string(mem_ctx, r,
609                         "failed to create kerberos keytab");
610                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
611         }
612
613         return ADS_SUCCESS;
614 }
615 #endif /* WITH_ADS */
616
617 /****************************************************************
618  Store the machine password and domain SID
619 ****************************************************************/
620
621 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
622                                                  struct libnet_JoinCtx *r)
623 {
624         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
625                                       r->out.domain_sid))
626         {
627                 DEBUG(1,("Failed to save domain sid\n"));
628                 return false;
629         }
630
631         if (!secrets_store_machine_password(r->in.machine_password,
632                                             r->out.netbios_domain_name,
633                                             SEC_CHAN_WKSTA))
634         {
635                 DEBUG(1,("Failed to save machine password\n"));
636                 return false;
637         }
638
639         return true;
640 }
641
642 /****************************************************************
643  Do the domain join
644 ****************************************************************/
645
646 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
647                                            struct libnet_JoinCtx *r)
648 {
649         struct cli_state *cli = NULL;
650         struct rpc_pipe_client *pipe_hnd = NULL;
651         POLICY_HND sam_pol, domain_pol, user_pol, lsa_pol;
652         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
653         char *acct_name;
654         struct lsa_String lsa_acct_name;
655         uint32 user_rid;
656         uint32 acb_info = ACB_WSTRUST;
657         uchar pwbuf[532];
658         struct MD5Context md5ctx;
659         uchar md5buffer[16];
660         DATA_BLOB digested_session_key;
661         uchar md4_trust_password[16];
662         union lsa_PolicyInformation *info = NULL;
663         struct samr_Ids user_rids;
664         struct samr_Ids name_types;
665         union samr_UserInfo user_info;
666
667         if (!r->in.machine_password) {
668                 r->in.machine_password = talloc_strdup(mem_ctx, generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH));
669                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
670         }
671
672         status = cli_full_connection(&cli, NULL,
673                                      r->in.dc_name,
674                                      NULL, 0,
675                                      "IPC$", "IPC",
676                                      r->in.admin_account,
677                                      NULL,
678                                      r->in.admin_password,
679                                      0,
680                                      Undefined, NULL);
681
682         if (!NT_STATUS_IS_OK(status)) {
683                 goto done;
684         }
685
686         pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_LSARPC, &status);
687         if (!pipe_hnd) {
688                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
689                         nt_errstr(status)));
690                 goto done;
691         }
692
693         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, True,
694                                         SEC_RIGHTS_MAXIMUM_ALLOWED, &lsa_pol);
695         if (!NT_STATUS_IS_OK(status)) {
696                 goto done;
697         }
698
699         status = rpccli_lsa_QueryInfoPolicy2(pipe_hnd, mem_ctx,
700                                              &lsa_pol,
701                                              LSA_POLICY_INFO_DNS,
702                                              &info);
703         if (NT_STATUS_IS_OK(status)) {
704                 r->out.domain_is_ad = true;
705                 r->out.netbios_domain_name = info->dns.name.string;
706                 r->out.dns_domain_name = info->dns.dns_domain.string;
707                 r->out.domain_sid = info->dns.sid;
708         }
709
710         if (!NT_STATUS_IS_OK(status)) {
711                 status = rpccli_lsa_QueryInfoPolicy(pipe_hnd, mem_ctx,
712                                                     &lsa_pol,
713                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
714                                                     &info);
715                 if (!NT_STATUS_IS_OK(status)) {
716                         goto done;
717                 }
718
719                 r->out.netbios_domain_name = info->account_domain.name.string;
720                 r->out.domain_sid = info->account_domain.sid;
721         }
722
723         rpccli_lsa_Close(pipe_hnd, mem_ctx, &lsa_pol);
724         cli_rpc_pipe_close(pipe_hnd);
725
726         /* Open the domain */
727
728         pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &status);
729         if (!pipe_hnd) {
730                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
731                         nt_errstr(status)));
732                 goto done;
733         }
734
735         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
736                                       pipe_hnd->cli->desthost,
737                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
738                                       &sam_pol);
739         if (!NT_STATUS_IS_OK(status)) {
740                 goto done;
741         }
742
743         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
744                                         &sam_pol,
745                                         SEC_RIGHTS_MAXIMUM_ALLOWED,
746                                         r->out.domain_sid,
747                                         &domain_pol);
748         if (!NT_STATUS_IS_OK(status)) {
749                 goto done;
750         }
751
752         /* Create domain user */
753
754         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
755         strlower_m(acct_name);
756
757         init_lsa_String(&lsa_acct_name, acct_name);
758
759         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
760                 uint32_t acct_flags =
761                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
762                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
763                         SAMR_USER_ACCESS_SET_PASSWORD |
764                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
765                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
766                 uint32_t access_granted = 0;
767
768                 /* Don't try to set any acb_info flags other than ACB_WSTRUST */
769
770                 DEBUG(10,("Creating account with flags: %d\n", acct_flags));
771
772                 status = rpccli_samr_CreateUser2(pipe_hnd, mem_ctx,
773                                                  &domain_pol,
774                                                  &lsa_acct_name,
775                                                  ACB_WSTRUST,
776                                                  acct_flags,
777                                                  &user_pol,
778                                                  &access_granted,
779                                                  &user_rid);
780                 if (!NT_STATUS_IS_OK(status) &&
781                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
782
783                         DEBUG(10,("Creation of workstation account failed: %s\n",
784                                 nt_errstr(status)));
785
786                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
787                            username/password combo but the user does not have
788                            administrator access. */
789
790                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
791                                 libnet_join_set_error_string(mem_ctx, r,
792                                         "User specified does not have "
793                                         "administrator privileges");
794                         }
795
796                         return status;
797                 }
798
799                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
800                         if (!(r->in.join_flags &
801                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
802                                 goto done;
803                         }
804                 }
805
806                 /* We *must* do this.... don't ask... */
807
808                 if (NT_STATUS_IS_OK(status)) {
809                         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
810                 }
811         }
812
813         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
814                                          &domain_pol,
815                                          1,
816                                          &lsa_acct_name,
817                                          &user_rids,
818                                          &name_types);
819         if (!NT_STATUS_IS_OK(status)) {
820                 goto done;
821         }
822
823         if (name_types.ids[0] != SID_NAME_USER) {
824                 DEBUG(0,("%s is not a user account (type=%d)\n",
825                         acct_name, name_types.ids[0]));
826                 status = NT_STATUS_INVALID_WORKSTATION;
827                 goto done;
828         }
829
830         user_rid = user_rids.ids[0];
831
832         /* Open handle on user */
833
834         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
835                                       &domain_pol,
836                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
837                                       user_rid,
838                                       &user_pol);
839         if (!NT_STATUS_IS_OK(status)) {
840                 goto done;
841         }
842
843         /* Create a random machine account password and generate the hash */
844
845         E_md4hash(r->in.machine_password, md4_trust_password);
846         encode_pw_buffer(pwbuf, r->in.machine_password, STR_UNICODE);
847
848         generate_random_buffer((uint8*)md5buffer, sizeof(md5buffer));
849         digested_session_key = data_blob_talloc(mem_ctx, 0, 16);
850
851         MD5Init(&md5ctx);
852         MD5Update(&md5ctx, md5buffer, sizeof(md5buffer));
853         MD5Update(&md5ctx, cli->user_session_key.data,
854                   cli->user_session_key.length);
855         MD5Final(digested_session_key.data, &md5ctx);
856
857         SamOEMhashBlob(pwbuf, sizeof(pwbuf), &digested_session_key);
858         memcpy(&pwbuf[516], md5buffer, sizeof(md5buffer));
859
860         /* Fill in the additional account flags now */
861
862         acb_info |= ACB_PWNOEXP;
863         if (r->out.domain_is_ad) {
864 #if !defined(ENCTYPE_ARCFOUR_HMAC)
865                 acb_info |= ACB_USE_DES_KEY_ONLY;
866 #endif
867                 ;;
868         }
869
870         /* Set password and account flags on machine account */
871
872         ZERO_STRUCT(user_info.info25);
873
874         user_info.info25.info.fields_present = ACCT_NT_PWD_SET |
875                                                ACCT_LM_PWD_SET |
876                                                SAMR_FIELD_ACCT_FLAGS;
877         user_info.info25.info.acct_flags = acb_info;
878         memcpy(&user_info.info25.password.data, pwbuf, sizeof(pwbuf));
879
880         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
881                                          &user_pol,
882                                          25,
883                                          &user_info);
884         if (!NT_STATUS_IS_OK(status)) {
885                 libnet_join_set_error_string(mem_ctx, r,
886                         "Failed to set password for machine account (%s)\n",
887                         nt_errstr(status));
888                 goto done;
889         }
890
891         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
892         cli_rpc_pipe_close(pipe_hnd);
893
894         status = NT_STATUS_OK;
895  done:
896         if (cli) {
897                 cli_shutdown(cli);
898         }
899
900         return status;
901 }
902
903 /****************************************************************
904 ****************************************************************/
905
906 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
907                         const char *machine_name,
908                         const char *dc_name)
909 {
910         uint32_t neg_flags = NETLOGON_NEG_AUTH2_FLAGS |
911                              NETLOGON_NEG_SCHANNEL;
912         /* FIXME: NETLOGON_NEG_SELECT_AUTH2_FLAGS */
913         struct cli_state *cli = NULL;
914         struct rpc_pipe_client *pipe_hnd = NULL;
915         struct rpc_pipe_client *netlogon_pipe = NULL;
916         NTSTATUS status;
917         char *machine_password = NULL;
918         char *machine_account = NULL;
919
920         if (!dc_name) {
921                 return NT_STATUS_INVALID_PARAMETER;
922         }
923
924         if (!secrets_init()) {
925                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
926         }
927
928         machine_password = secrets_fetch_machine_password(netbios_domain_name,
929                                                           NULL, NULL);
930         if (!machine_password) {
931                 return NT_STATUS_NO_TRUST_LSA_SECRET;
932         }
933
934         asprintf(&machine_account, "%s$", machine_name);
935         if (!machine_account) {
936                 SAFE_FREE(machine_password);
937                 return NT_STATUS_NO_MEMORY;
938         }
939
940         status = cli_full_connection(&cli, NULL,
941                                      dc_name,
942                                      NULL, 0,
943                                      "IPC$", "IPC",
944                                      machine_account,
945                                      NULL,
946                                      machine_password,
947                                      0,
948                                      Undefined, NULL);
949         free(machine_account);
950         free(machine_password);
951
952         if (!NT_STATUS_IS_OK(status)) {
953                 status = cli_full_connection(&cli, NULL,
954                                              dc_name,
955                                              NULL, 0,
956                                              "IPC$", "IPC",
957                                              "",
958                                              NULL,
959                                              "",
960                                              0,
961                                              Undefined, NULL);
962         }
963
964         if (!NT_STATUS_IS_OK(status)) {
965                 return status;
966         }
967
968         netlogon_pipe = get_schannel_session_key(cli,
969                                                  netbios_domain_name,
970                                                  &neg_flags, &status);
971         if (!netlogon_pipe) {
972                 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
973                         cli_shutdown(cli);
974                         return NT_STATUS_OK;
975                 }
976
977                 DEBUG(0,("libnet_join_ok: failed to get schannel session "
978                         "key from server %s for domain %s. Error was %s\n",
979                 cli->desthost, netbios_domain_name, nt_errstr(status)));
980                 cli_shutdown(cli);
981                 return status;
982         }
983
984         if (!lp_client_schannel()) {
985                 cli_shutdown(cli);
986                 return NT_STATUS_OK;
987         }
988
989         pipe_hnd = cli_rpc_pipe_open_schannel_with_key(cli, PI_NETLOGON,
990                                                        PIPE_AUTH_LEVEL_PRIVACY,
991                                                        netbios_domain_name,
992                                                        netlogon_pipe->dc,
993                                                        &status);
994
995         cli_shutdown(cli);
996
997         if (!pipe_hnd) {
998                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
999                         "on netlogon pipe to server %s for domain %s. "
1000                         "Error was %s\n",
1001                         cli->desthost, netbios_domain_name, nt_errstr(status)));
1002                 return status;
1003         }
1004
1005         return NT_STATUS_OK;
1006 }
1007
1008 /****************************************************************
1009 ****************************************************************/
1010
1011 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1012                                       struct libnet_JoinCtx *r)
1013 {
1014         NTSTATUS status;
1015
1016         status = libnet_join_ok(r->out.netbios_domain_name,
1017                                 r->in.machine_name,
1018                                 r->in.dc_name);
1019         if (!NT_STATUS_IS_OK(status)) {
1020                 libnet_join_set_error_string(mem_ctx, r,
1021                         "failed to verify domain membership after joining: %s",
1022                         get_friendly_nt_error_msg(status));
1023                 return WERR_SETUP_NOT_JOINED;
1024         }
1025
1026         return WERR_OK;
1027 }
1028
1029 /****************************************************************
1030 ****************************************************************/
1031
1032 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1033                                                     struct libnet_UnjoinCtx *r)
1034 {
1035         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1036                 return false;
1037         }
1038
1039         if (!secrets_delete_domain_sid(lp_workgroup())) {
1040                 return false;
1041         }
1042
1043         return true;
1044 }
1045
1046 /****************************************************************
1047 ****************************************************************/
1048
1049 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1050                                              struct libnet_UnjoinCtx *r)
1051 {
1052         struct cli_state *cli = NULL;
1053         struct rpc_pipe_client *pipe_hnd = NULL;
1054         POLICY_HND sam_pol, domain_pol, user_pol;
1055         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
1056         char *acct_name;
1057         uint32 user_rid;
1058         struct lsa_String lsa_acct_name;
1059         struct samr_Ids user_rids;
1060         struct samr_Ids name_types;
1061         union samr_UserInfo *info = NULL;
1062
1063         status = cli_full_connection(&cli, NULL,
1064                                      r->in.dc_name,
1065                                      NULL, 0,
1066                                      "IPC$", "IPC",
1067                                      r->in.admin_account,
1068                                      NULL,
1069                                      r->in.admin_password,
1070                                      0, Undefined, NULL);
1071
1072         if (!NT_STATUS_IS_OK(status)) {
1073                 goto done;
1074         }
1075
1076         /* Open the domain */
1077
1078         pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &status);
1079         if (!pipe_hnd) {
1080                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1081                         nt_errstr(status)));
1082                 goto done;
1083         }
1084
1085         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
1086                                       pipe_hnd->cli->desthost,
1087                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
1088                                       &sam_pol);
1089         if (!NT_STATUS_IS_OK(status)) {
1090                 goto done;
1091         }
1092
1093         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
1094                                         &sam_pol,
1095                                         SEC_RIGHTS_MAXIMUM_ALLOWED,
1096                                         r->in.domain_sid,
1097                                         &domain_pol);
1098         if (!NT_STATUS_IS_OK(status)) {
1099                 goto done;
1100         }
1101
1102         /* Create domain user */
1103
1104         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1105         strlower_m(acct_name);
1106
1107         init_lsa_String(&lsa_acct_name, acct_name);
1108
1109         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
1110                                          &domain_pol,
1111                                          1,
1112                                          &lsa_acct_name,
1113                                          &user_rids,
1114                                          &name_types);
1115
1116         if (!NT_STATUS_IS_OK(status)) {
1117                 goto done;
1118         }
1119
1120         if (name_types.ids[0] != SID_NAME_USER) {
1121                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1122                         name_types.ids[0]));
1123                 status = NT_STATUS_INVALID_WORKSTATION;
1124                 goto done;
1125         }
1126
1127         user_rid = user_rids.ids[0];
1128
1129         /* Open handle on user */
1130
1131         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
1132                                       &domain_pol,
1133                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
1134                                       user_rid,
1135                                       &user_pol);
1136         if (!NT_STATUS_IS_OK(status)) {
1137                 goto done;
1138         }
1139
1140         /* Get user info */
1141
1142         status = rpccli_samr_QueryUserInfo(pipe_hnd, mem_ctx,
1143                                            &user_pol,
1144                                            16,
1145                                            &info);
1146         if (!NT_STATUS_IS_OK(status)) {
1147                 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1148                 goto done;
1149         }
1150
1151         /* now disable and setuser info */
1152
1153         info->info16.acct_flags |= ACB_DISABLED;
1154
1155         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
1156                                          &user_pol,
1157                                          16,
1158                                          info);
1159
1160         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1161
1162 done:
1163         if (pipe_hnd) {
1164                 rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
1165                 rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
1166                 cli_rpc_pipe_close(pipe_hnd);
1167         }
1168
1169         if (cli) {
1170                 cli_shutdown(cli);
1171         }
1172
1173         return status;
1174 }
1175
1176 /****************************************************************
1177 ****************************************************************/
1178
1179 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1180 {
1181         WERROR werr;
1182         struct libnet_conf_ctx *ctx;
1183
1184         werr = libnet_conf_open(r, &ctx);
1185         if (!W_ERROR_IS_OK(werr)) {
1186                 goto done;
1187         }
1188
1189         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1190
1191                 werr = libnet_conf_set_global_parameter(ctx, "security", "user");
1192                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1193
1194                 werr = libnet_conf_set_global_parameter(ctx, "workgroup",
1195                                                         r->in.domain_name);
1196                 goto done;
1197         }
1198
1199         werr = libnet_conf_set_global_parameter(ctx, "security", "domain");
1200         W_ERROR_NOT_OK_GOTO_DONE(werr);
1201
1202         werr = libnet_conf_set_global_parameter(ctx, "workgroup",
1203                                                 r->out.netbios_domain_name);
1204         W_ERROR_NOT_OK_GOTO_DONE(werr);
1205
1206         if (r->out.domain_is_ad) {
1207                 werr = libnet_conf_set_global_parameter(ctx, "security", "ads");
1208                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1209
1210                 werr = libnet_conf_set_global_parameter(ctx, "realm",
1211                                                         r->out.dns_domain_name);
1212                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1213         }
1214
1215  done:
1216         libnet_conf_close(ctx);
1217         return werr;
1218 }
1219
1220 /****************************************************************
1221 ****************************************************************/
1222
1223 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1224 {
1225         WERROR werr = WERR_OK;
1226         struct libnet_conf_ctx *ctx;
1227
1228         werr = libnet_conf_open(r, &ctx);
1229         if (!W_ERROR_IS_OK(werr)) {
1230                 goto done;
1231         }
1232
1233         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1234
1235                 werr = libnet_conf_set_global_parameter(ctx, "security", "user");
1236                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1237                 libnet_conf_delete_global_parameter(ctx, "realm");
1238         }
1239
1240  done:
1241         libnet_conf_close(ctx);
1242         return werr;
1243 }
1244
1245 /****************************************************************
1246 ****************************************************************/
1247
1248 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1249 {
1250         WERROR werr;
1251
1252         if (!W_ERROR_IS_OK(r->out.result)) {
1253                 return r->out.result;
1254         }
1255
1256         if (!r->in.modify_config) {
1257                 return WERR_OK;
1258         }
1259
1260         werr = do_join_modify_vals_config(r);
1261         if (!W_ERROR_IS_OK(werr)) {
1262                 return werr;
1263         }
1264
1265         r->out.modified_config = true;
1266         r->out.result = werr;
1267
1268         return werr;
1269 }
1270
1271 /****************************************************************
1272 ****************************************************************/
1273
1274 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1275 {
1276         WERROR werr;
1277
1278         if (!W_ERROR_IS_OK(r->out.result)) {
1279                 return r->out.result;
1280         }
1281
1282         if (!r->in.modify_config) {
1283                 return WERR_OK;
1284         }
1285
1286         werr = do_unjoin_modify_vals_config(r);
1287         if (!W_ERROR_IS_OK(werr)) {
1288                 return werr;
1289         }
1290
1291         r->out.modified_config = true;
1292         r->out.result = werr;
1293
1294         return werr;
1295 }
1296
1297 /****************************************************************
1298 ****************************************************************/
1299
1300 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1301                                          struct libnet_JoinCtx *r)
1302 {
1303         if (!r->in.domain_name) {
1304                 libnet_join_set_error_string(mem_ctx, r,
1305                         "No domain name defined");
1306                 return WERR_INVALID_PARAM;
1307         }
1308
1309         if (r->in.modify_config && !lp_config_backend_is_registry()) {
1310                 libnet_join_set_error_string(mem_ctx, r,
1311                         "Configuration manipulation requested but not "
1312                         "supported by backend");
1313                 return WERR_NOT_SUPPORTED;
1314         }
1315
1316         if (IS_DC) {
1317                 return WERR_SETUP_DOMAIN_CONTROLLER;
1318         }
1319
1320         if (!secrets_init()) {
1321                 libnet_join_set_error_string(mem_ctx, r,
1322                         "Unable to open secrets database");
1323                 return WERR_CAN_NOT_COMPLETE;
1324         }
1325
1326         return WERR_OK;
1327 }
1328
1329 /****************************************************************
1330 ****************************************************************/
1331
1332 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1333                                           struct libnet_JoinCtx *r)
1334 {
1335         WERROR werr;
1336
1337         if (!W_ERROR_IS_OK(r->out.result)) {
1338                 return r->out.result;
1339         }
1340
1341         werr = do_JoinConfig(r);
1342         if (!W_ERROR_IS_OK(werr)) {
1343                 return werr;
1344         }
1345
1346         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1347                 saf_store(r->in.domain_name, r->in.dc_name);
1348         }
1349
1350         return WERR_OK;
1351 }
1352
1353 /****************************************************************
1354 ****************************************************************/
1355
1356 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1357 {
1358         if (r->in.ads) {
1359                 ads_destroy(&r->in.ads);
1360         }
1361
1362         return 0;
1363 }
1364
1365 /****************************************************************
1366 ****************************************************************/
1367
1368 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1369 {
1370         if (r->in.ads) {
1371                 ads_destroy(&r->in.ads);
1372         }
1373
1374         return 0;
1375 }
1376
1377 /****************************************************************
1378 ****************************************************************/
1379
1380 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1381                            struct libnet_JoinCtx **r)
1382 {
1383         struct libnet_JoinCtx *ctx;
1384
1385         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1386         if (!ctx) {
1387                 return WERR_NOMEM;
1388         }
1389
1390         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1391
1392         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1393         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1394
1395         *r = ctx;
1396
1397         return WERR_OK;
1398 }
1399
1400 /****************************************************************
1401 ****************************************************************/
1402
1403 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1404                              struct libnet_UnjoinCtx **r)
1405 {
1406         struct libnet_UnjoinCtx *ctx;
1407
1408         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1409         if (!ctx) {
1410                 return WERR_NOMEM;
1411         }
1412
1413         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1414
1415         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1416         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1417
1418         *r = ctx;
1419
1420         return WERR_OK;
1421 }
1422
1423 /****************************************************************
1424 ****************************************************************/
1425
1426 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1427                                 struct libnet_JoinCtx *r)
1428 {
1429         NTSTATUS status;
1430 #ifdef WITH_ADS
1431         ADS_STATUS ads_status;
1432 #endif /* WITH_ADS */
1433
1434         if (!r->in.dc_name) {
1435                 struct netr_DsRGetDCNameInfo *info;
1436                 status = dsgetdcname(mem_ctx,
1437                                      r->in.domain_name,
1438                                      NULL,
1439                                      NULL,
1440                                      DS_DIRECTORY_SERVICE_REQUIRED |
1441                                      DS_WRITABLE_REQUIRED |
1442                                      DS_RETURN_DNS_NAME,
1443                                      &info);
1444                 if (!NT_STATUS_IS_OK(status)) {
1445                         libnet_join_set_error_string(mem_ctx, r,
1446                                 "failed to find DC for domain %s",
1447                                 r->in.domain_name,
1448                                 get_friendly_nt_error_msg(status));
1449                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1450                 }
1451
1452                 r->in.dc_name = talloc_strdup(mem_ctx,
1453                                               info->dc_unc);
1454                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1455         }
1456
1457 #ifdef WITH_ADS
1458         if (r->in.account_ou) {
1459
1460                 ads_status = libnet_join_connect_ads(mem_ctx, r);
1461                 if (!ADS_ERR_OK(ads_status)) {
1462                         return WERR_DEFAULT_JOIN_REQUIRED;
1463                 }
1464
1465                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1466                 if (!ADS_ERR_OK(ads_status)) {
1467                         libnet_join_set_error_string(mem_ctx, r,
1468                                 "failed to precreate account in ou %s: %s",
1469                                 r->in.account_ou,
1470                                 ads_errstr(ads_status));
1471                         return WERR_DEFAULT_JOIN_REQUIRED;
1472                 }
1473
1474                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
1475         }
1476 #endif /* WITH_ADS */
1477
1478         status = libnet_join_joindomain_rpc(mem_ctx, r);
1479         if (!NT_STATUS_IS_OK(status)) {
1480                 libnet_join_set_error_string(mem_ctx, r,
1481                         "failed to join domain over rpc: %s",
1482                         get_friendly_nt_error_msg(status));
1483                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1484                         return WERR_SETUP_ALREADY_JOINED;
1485                 }
1486                 return ntstatus_to_werror(status);
1487         }
1488
1489         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
1490                 return WERR_SETUP_NOT_JOINED;
1491         }
1492
1493 #ifdef WITH_ADS
1494         if (r->out.domain_is_ad) {
1495                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1496                 if (!ADS_ERR_OK(ads_status)) {
1497                         return WERR_GENERAL_FAILURE;
1498                 }
1499         }
1500 #endif /* WITH_ADS */
1501
1502         return WERR_OK;
1503 }
1504
1505 /****************************************************************
1506 ****************************************************************/
1507
1508 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
1509                    struct libnet_JoinCtx *r)
1510 {
1511         WERROR werr;
1512
1513         if (r->in.debug) {
1514                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
1515         }
1516
1517         werr = libnet_join_pre_processing(mem_ctx, r);
1518         if (!W_ERROR_IS_OK(werr)) {
1519                 goto done;
1520         }
1521
1522         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1523                 werr = libnet_DomainJoin(mem_ctx, r);
1524                 if (!W_ERROR_IS_OK(werr)) {
1525                         goto done;
1526                 }
1527
1528                 werr = libnet_join_post_verify(mem_ctx, r);
1529                 if (!W_ERROR_IS_OK(werr)) {
1530                         goto done;
1531                 }
1532         }
1533
1534         werr = libnet_join_post_processing(mem_ctx, r);
1535         if (!W_ERROR_IS_OK(werr)) {
1536                 goto done;
1537         }
1538  done:
1539         r->out.result = werr;
1540
1541         if (r->in.debug) {
1542                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
1543         }
1544         return werr;
1545 }
1546
1547 /****************************************************************
1548 ****************************************************************/
1549
1550 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
1551                                   struct libnet_UnjoinCtx *r)
1552 {
1553         NTSTATUS status;
1554
1555         if (!r->in.domain_sid) {
1556                 struct dom_sid sid;
1557                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
1558                         libnet_unjoin_set_error_string(mem_ctx, r,
1559                                 "Unable to fetch domain sid: are we joined?");
1560                         return WERR_SETUP_NOT_JOINED;
1561                 }
1562                 r->in.domain_sid = sid_dup_talloc(mem_ctx, &sid);
1563                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
1564         }
1565
1566         if (!r->in.dc_name) {
1567                 struct netr_DsRGetDCNameInfo *info;
1568                 status = dsgetdcname(mem_ctx,
1569                                      r->in.domain_name,
1570                                      NULL,
1571                                      NULL,
1572                                      DS_DIRECTORY_SERVICE_REQUIRED |
1573                                      DS_WRITABLE_REQUIRED |
1574                                      DS_RETURN_DNS_NAME,
1575                                      &info);
1576                 if (!NT_STATUS_IS_OK(status)) {
1577                         libnet_unjoin_set_error_string(mem_ctx, r,
1578                                 "failed to find DC for domain %s",
1579                                 r->in.domain_name,
1580                                 get_friendly_nt_error_msg(status));
1581                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1582                 }
1583
1584                 r->in.dc_name = talloc_strdup(mem_ctx,
1585                                               info->dc_unc);
1586                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1587         }
1588
1589         status = libnet_join_unjoindomain_rpc(mem_ctx, r);
1590         if (!NT_STATUS_IS_OK(status)) {
1591                 libnet_unjoin_set_error_string(mem_ctx, r,
1592                         "failed to disable machine account via rpc: %s",
1593                         get_friendly_nt_error_msg(status));
1594                 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
1595                         return WERR_SETUP_NOT_JOINED;
1596                 }
1597                 return ntstatus_to_werror(status);
1598         }
1599
1600         r->out.disabled_machine_account = true;
1601
1602 #ifdef WITH_ADS
1603         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
1604                 ADS_STATUS ads_status;
1605                 libnet_unjoin_connect_ads(mem_ctx, r);
1606                 ads_status = libnet_unjoin_remove_machine_acct(mem_ctx, r);
1607                 if (!ADS_ERR_OK(ads_status)) {
1608                         libnet_unjoin_set_error_string(mem_ctx, r,
1609                                 "failed to remove machine account from AD: %s",
1610                                 ads_errstr(ads_status));
1611                 } else {
1612                         r->out.deleted_machine_account = true;
1613                         /* dirty hack */
1614                         r->out.dns_domain_name = talloc_strdup(mem_ctx,
1615                                                                r->in.ads->server.realm);
1616                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
1617                 }
1618         }
1619 #endif /* WITH_ADS */
1620
1621         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
1622
1623         return WERR_OK;
1624 }
1625
1626 /****************************************************************
1627 ****************************************************************/
1628
1629 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
1630                                            struct libnet_UnjoinCtx *r)
1631 {
1632         if (!r->in.domain_name) {
1633                 libnet_unjoin_set_error_string(mem_ctx, r,
1634                         "No domain name defined");
1635                 return WERR_INVALID_PARAM;
1636         }
1637
1638         if (r->in.modify_config && !lp_config_backend_is_registry()) {
1639                 libnet_unjoin_set_error_string(mem_ctx, r,
1640                         "Configuration manipulation requested but not "
1641                         "supported by backend");
1642                 return WERR_NOT_SUPPORTED;
1643         }
1644
1645         if (IS_DC) {
1646                 return WERR_SETUP_DOMAIN_CONTROLLER;
1647         }
1648
1649         if (!secrets_init()) {
1650                 libnet_unjoin_set_error_string(mem_ctx, r,
1651                         "Unable to open secrets database");
1652                 return WERR_CAN_NOT_COMPLETE;
1653         }
1654
1655         return WERR_OK;
1656 }
1657
1658 /****************************************************************
1659 ****************************************************************/
1660
1661 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
1662                                             struct libnet_UnjoinCtx *r)
1663 {
1664         saf_delete(r->out.netbios_domain_name);
1665         saf_delete(r->out.dns_domain_name);
1666
1667         return libnet_unjoin_config(r);
1668 }
1669
1670 /****************************************************************
1671 ****************************************************************/
1672
1673 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
1674                      struct libnet_UnjoinCtx *r)
1675 {
1676         WERROR werr;
1677
1678         if (r->in.debug) {
1679                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
1680         }
1681
1682         werr = libnet_unjoin_pre_processing(mem_ctx, r);
1683         if (!W_ERROR_IS_OK(werr)) {
1684                 goto done;
1685         }
1686
1687         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1688                 werr = libnet_DomainUnjoin(mem_ctx, r);
1689                 if (!W_ERROR_IS_OK(werr)) {
1690                         libnet_unjoin_config(r);
1691                         goto done;
1692                 }
1693         }
1694
1695         werr = libnet_unjoin_post_processing(mem_ctx, r);
1696         if (!W_ERROR_IS_OK(werr)) {
1697                 goto done;
1698         }
1699
1700  done:
1701         r->out.result = werr;
1702
1703         if (r->in.debug) {
1704                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
1705         }
1706
1707         return werr;
1708 }