1a2b1caceaed76c165674d9ab5103084901feaf7
[samba.git] / source3 / libnet / libnet_dssync.c
1 /*
2    Unix SMB/CIFS implementation.
3
4    Copyright (C) Stefan (metze) Metzmacher 2005
5    Copyright (C) Guenther Deschner 2008
6    Copyright (C) Michael Adam 2008
7
8    This program is free software; you can redistribute it and/or modify
9    it under the terms of the GNU General Public License as published by
10    the Free Software Foundation; either version 3 of the License, or
11    (at your option) any later version.
12
13    This program is distributed in the hope that it will be useful,
14    but WITHOUT ANY WARRANTY; without even the implied warranty of
15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16    GNU General Public License for more details.
17
18    You should have received a copy of the GNU General Public License
19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
20 */
21
22
23 #include "includes.h"
24 #include "libnet/libnet.h"
25 #include "../libcli/drsuapi/drsuapi.h"
26 #include "../librpc/gen_ndr/cli_drsuapi.h"
27
28 /****************************************************************
29 ****************************************************************/
30
31 static int libnet_dssync_free_context(struct dssync_context *ctx)
32 {
33         if (!ctx) {
34                 return 0;
35         }
36
37         if (is_valid_policy_hnd(&ctx->bind_handle) && ctx->cli) {
38                 rpccli_drsuapi_DsUnbind(ctx->cli, ctx, &ctx->bind_handle, NULL);
39         }
40
41         return 0;
42 }
43
44 /****************************************************************
45 ****************************************************************/
46
47 NTSTATUS libnet_dssync_init_context(TALLOC_CTX *mem_ctx,
48                                     struct dssync_context **ctx_p)
49 {
50         struct dssync_context *ctx;
51
52         ctx = TALLOC_ZERO_P(mem_ctx, struct dssync_context);
53         NT_STATUS_HAVE_NO_MEMORY(ctx);
54
55         talloc_set_destructor(ctx, libnet_dssync_free_context);
56         ctx->clean_old_entries = false;
57
58         *ctx_p = ctx;
59
60         return NT_STATUS_OK;
61 }
62
63 /****************************************************************
64 ****************************************************************/
65
66 static void parse_obj_identifier(struct drsuapi_DsReplicaObjectIdentifier *id,
67                                  uint32_t *rid)
68 {
69         if (!id || !rid) {
70                 return;
71         }
72
73         *rid = 0;
74
75         if (id->sid.num_auths > 0) {
76                 *rid = id->sid.sub_auths[id->sid.num_auths - 1];
77         }
78 }
79
80 /****************************************************************
81 ****************************************************************/
82
83 static void libnet_dssync_decrypt_attributes(TALLOC_CTX *mem_ctx,
84                                              DATA_BLOB *session_key,
85                                              struct drsuapi_DsReplicaObjectListItemEx *cur)
86 {
87         for (; cur; cur = cur->next_object) {
88
89                 uint32_t i;
90                 uint32_t rid = 0;
91
92                 parse_obj_identifier(cur->object.identifier, &rid);
93
94                 for (i=0; i < cur->object.attribute_ctr.num_attributes; i++) {
95
96                         struct drsuapi_DsReplicaAttribute *attr;
97
98                         attr = &cur->object.attribute_ctr.attributes[i];
99
100                         if (attr->value_ctr.num_values < 1) {
101                                 continue;
102                         }
103
104                         if (!attr->value_ctr.values[0].blob) {
105                                 continue;
106                         }
107
108                         drsuapi_decrypt_attribute(mem_ctx,
109                                                   session_key,
110                                                   rid,
111                                                   attr);
112                 }
113         }
114 }
115 /****************************************************************
116 ****************************************************************/
117
118 static NTSTATUS libnet_dssync_bind(TALLOC_CTX *mem_ctx,
119                                    struct dssync_context *ctx)
120 {
121         NTSTATUS status;
122         WERROR werr;
123
124         struct GUID bind_guid;
125         struct drsuapi_DsBindInfoCtr bind_info;
126         struct drsuapi_DsBindInfo28 info28;
127
128         ZERO_STRUCT(info28);
129
130         GUID_from_string(DRSUAPI_DS_BIND_GUID, &bind_guid);
131
132         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_BASE;
133         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION;
134         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI;
135         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2;
136         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS;
137         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1;
138         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION;
139         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE;
140         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2;
141         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION;
142         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2;
143         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD;
144         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND;
145         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO;
146         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION;
147         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01;
148         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP;
149         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY;
150         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3;
151         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2;
152         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6;
153         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS;
154         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8;
155         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5;
156         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6;
157         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3;
158         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7;
159         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT;
160         info28.site_guid                = GUID_zero();
161         info28.pid                      = 508;
162         info28.repl_epoch               = 0;
163
164         bind_info.length = 28;
165         bind_info.info.info28 = info28;
166
167         status = rpccli_drsuapi_DsBind(ctx->cli, mem_ctx,
168                                        &bind_guid,
169                                        &bind_info,
170                                        &ctx->bind_handle,
171                                        &werr);
172
173         if (!NT_STATUS_IS_OK(status)) {
174                 return status;
175         }
176
177         if (!W_ERROR_IS_OK(werr)) {
178                 return werror_to_ntstatus(werr);
179         }
180
181         ZERO_STRUCT(ctx->remote_info28);
182         switch (bind_info.length) {
183         case 24: {
184                 struct drsuapi_DsBindInfo24 *info24;
185                 info24 = &bind_info.info.info24;
186                 ctx->remote_info28.site_guid            = info24->site_guid;
187                 ctx->remote_info28.supported_extensions = info24->supported_extensions;
188                 ctx->remote_info28.pid                  = info24->pid;
189                 ctx->remote_info28.repl_epoch           = 0;
190                 break;
191         }
192         case 28:
193                 ctx->remote_info28 = bind_info.info.info28;
194                 break;
195         case 48: {
196                 struct drsuapi_DsBindInfo48 *info48;
197                 info48 = &bind_info.info.info48;
198                 ctx->remote_info28.site_guid            = info48->site_guid;
199                 ctx->remote_info28.supported_extensions = info48->supported_extensions;
200                 ctx->remote_info28.pid                  = info48->pid;
201                 ctx->remote_info28.repl_epoch           = info48->repl_epoch;
202                 break;
203         }
204         default:
205                 DEBUG(1, ("Warning: invalid info length in bind info: %d\n",
206                           bind_info.length));
207                 break;
208         }
209
210         return status;
211 }
212
213 /****************************************************************
214 ****************************************************************/
215
216 static NTSTATUS libnet_dssync_lookup_nc(TALLOC_CTX *mem_ctx,
217                                         struct dssync_context *ctx)
218 {
219         NTSTATUS status;
220         WERROR werr;
221         uint32_t level = 1;
222         union drsuapi_DsNameRequest req;
223         uint32_t level_out;
224         struct drsuapi_DsNameString names[1];
225         union drsuapi_DsNameCtr ctr;
226
227         names[0].str = talloc_asprintf(mem_ctx, "%s\\", ctx->domain_name);
228         NT_STATUS_HAVE_NO_MEMORY(names[0].str);
229
230         req.req1.codepage       = 1252; /* german */
231         req.req1.language       = 0x00000407; /* german */
232         req.req1.count          = 1;
233         req.req1.names          = names;
234         req.req1.format_flags   = DRSUAPI_DS_NAME_FLAG_NO_FLAGS;
235         req.req1.format_offered = DRSUAPI_DS_NAME_FORMAT_UNKNOWN;
236         req.req1.format_desired = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
237
238         status = rpccli_drsuapi_DsCrackNames(ctx->cli, mem_ctx,
239                                              &ctx->bind_handle,
240                                              level,
241                                              &req,
242                                              &level_out,
243                                              &ctr,
244                                              &werr);
245         if (!NT_STATUS_IS_OK(status)) {
246                 ctx->error_message = talloc_asprintf(ctx,
247                         "Failed to lookup DN for domain name: %s",
248                         get_friendly_werror_msg(werr));
249                 return status;
250         }
251
252         if (!W_ERROR_IS_OK(werr)) {
253                 return werror_to_ntstatus(werr);
254         }
255
256         if (ctr.ctr1->count != 1) {
257                 return NT_STATUS_UNSUCCESSFUL;
258         }
259
260         if (ctr.ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
261                 return NT_STATUS_UNSUCCESSFUL;
262         }
263
264         ctx->nc_dn = talloc_strdup(mem_ctx, ctr.ctr1->array[0].result_name);
265         NT_STATUS_HAVE_NO_MEMORY(ctx->nc_dn);
266
267         if (!ctx->dns_domain_name) {
268                 ctx->dns_domain_name = talloc_strdup_upper(mem_ctx,
269                         ctr.ctr1->array[0].dns_domain_name);
270                 NT_STATUS_HAVE_NO_MEMORY(ctx->dns_domain_name);
271         }
272
273         return NT_STATUS_OK;
274 }
275
276 /****************************************************************
277 ****************************************************************/
278
279 static NTSTATUS libnet_dssync_init(TALLOC_CTX *mem_ctx,
280                                    struct dssync_context *ctx)
281 {
282         NTSTATUS status;
283
284         status = libnet_dssync_bind(mem_ctx, ctx);
285         if (!NT_STATUS_IS_OK(status)) {
286                 return status;
287         }
288
289         if (!ctx->nc_dn) {
290                 status = libnet_dssync_lookup_nc(mem_ctx, ctx);
291         }
292
293         return status;
294 }
295
296 /****************************************************************
297 ****************************************************************/
298
299 static NTSTATUS libnet_dssync_build_request(TALLOC_CTX *mem_ctx,
300                                             struct dssync_context *ctx,
301                                             const char *dn,
302                                             struct replUpToDateVectorBlob *utdv,
303                                             uint32_t *plevel,
304                                             union drsuapi_DsGetNCChangesRequest *preq)
305 {
306         NTSTATUS status;
307         uint32_t count;
308         uint32_t level;
309         union drsuapi_DsGetNCChangesRequest req;
310         struct dom_sid null_sid;
311         enum drsuapi_DsExtendedOperation extended_op;
312         struct drsuapi_DsReplicaObjectIdentifier *nc = NULL;
313         struct drsuapi_DsReplicaCursorCtrEx *cursors = NULL;
314
315         uint32_t replica_flags  = DRSUAPI_DRS_WRIT_REP |
316                                   DRSUAPI_DRS_INIT_SYNC |
317                                   DRSUAPI_DRS_PER_SYNC |
318                                   DRSUAPI_DRS_GET_ANC |
319                                   DRSUAPI_DRS_NEVER_SYNCED;
320
321         ZERO_STRUCT(null_sid);
322         ZERO_STRUCT(req);
323
324         if (ctx->remote_info28.supported_extensions
325             & DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8)
326         {
327                 level = 8;
328         } else {
329                 level = 5;
330         }
331
332         nc = TALLOC_ZERO_P(mem_ctx, struct drsuapi_DsReplicaObjectIdentifier);
333         if (!nc) {
334                 status = NT_STATUS_NO_MEMORY;
335                 goto fail;
336         }
337         nc->dn = dn;
338         nc->guid = GUID_zero();
339         nc->sid = null_sid;
340
341         if (!ctx->single_object_replication &&
342             !ctx->force_full_replication && utdv)
343         {
344                 cursors = TALLOC_ZERO_P(mem_ctx,
345                                          struct drsuapi_DsReplicaCursorCtrEx);
346                 if (!cursors) {
347                         status = NT_STATUS_NO_MEMORY;
348                         goto fail;
349                 }
350
351                 switch (utdv->version) {
352                 case 1:
353                         cursors->count = utdv->ctr.ctr1.count;
354                         cursors->cursors = utdv->ctr.ctr1.cursors;
355                         break;
356                 case 2:
357                         cursors->count = utdv->ctr.ctr2.count;
358                         cursors->cursors = talloc_array(cursors,
359                                                 struct drsuapi_DsReplicaCursor,
360                                                 cursors->count);
361                         if (!cursors->cursors) {
362                                 status = NT_STATUS_NO_MEMORY;
363                                 goto fail;
364                         }
365                         for (count = 0; count < cursors->count; count++) {
366                                 cursors->cursors[count].source_dsa_invocation_id =
367                                         utdv->ctr.ctr2.cursors[count].source_dsa_invocation_id;
368                                 cursors->cursors[count].highest_usn =
369                                         utdv->ctr.ctr2.cursors[count].highest_usn;
370                         }
371                         break;
372                 }
373         }
374
375         if (ctx->single_object_replication) {
376                 extended_op = DRSUAPI_EXOP_REPL_OBJ;
377         } else {
378                 extended_op = DRSUAPI_EXOP_NONE;
379         }
380
381         if (level == 8) {
382                 req.req8.naming_context         = nc;
383                 req.req8.replica_flags          = replica_flags;
384                 req.req8.max_object_count       = 402;
385                 req.req8.max_ndr_size           = 402116;
386                 req.req8.uptodateness_vector    = cursors;
387                 req.req8.extended_op            = extended_op;
388         } else if (level == 5) {
389                 req.req5.naming_context         = nc;
390                 req.req5.replica_flags          = replica_flags;
391                 req.req5.max_object_count       = 402;
392                 req.req5.max_ndr_size           = 402116;
393                 req.req5.uptodateness_vector    = cursors;
394                 req.req5.extended_op            = extended_op;
395         } else {
396                 status = NT_STATUS_INVALID_PARAMETER;
397                 goto fail;
398         }
399
400         if (plevel) {
401                 *plevel = level;
402         }
403
404         if (preq) {
405                 *preq = req;
406         }
407
408         return NT_STATUS_OK;
409
410 fail:
411         TALLOC_FREE(nc);
412         TALLOC_FREE(cursors);
413         return status;
414 }
415
416 static NTSTATUS libnet_dssync_getncchanges(TALLOC_CTX *mem_ctx,
417                                            struct dssync_context *ctx,
418                                            uint32_t level,
419                                            union drsuapi_DsGetNCChangesRequest *req,
420                                            struct replUpToDateVectorBlob **pnew_utdv)
421 {
422         NTSTATUS status;
423         WERROR werr;
424         union drsuapi_DsGetNCChangesCtr ctr;
425         struct drsuapi_DsGetNCChangesCtr1 *ctr1 = NULL;
426         struct drsuapi_DsGetNCChangesCtr6 *ctr6 = NULL;
427         struct replUpToDateVectorBlob *new_utdv = NULL;
428         uint32_t level_out = 0;
429         uint32_t out_level = 0;
430         int y;
431         bool last_query;
432
433         if (!ctx->single_object_replication) {
434                 new_utdv = TALLOC_ZERO_P(mem_ctx, struct replUpToDateVectorBlob);
435                 if (!new_utdv) {
436                         status = NT_STATUS_NO_MEMORY;
437                         goto out;
438                 }
439         }
440
441         for (y=0, last_query = false; !last_query; y++) {
442                 struct drsuapi_DsReplicaObjectListItemEx *first_object = NULL;
443                 struct drsuapi_DsReplicaOIDMapping_Ctr *mapping_ctr = NULL;
444
445                 if (level == 8) {
446                         DEBUG(1,("start[%d] tmp_higest_usn: %llu , highest_usn: %llu\n",y,
447                                 (long long)req->req8.highwatermark.tmp_highest_usn,
448                                 (long long)req->req8.highwatermark.highest_usn));
449                 } else if (level == 5) {
450                         DEBUG(1,("start[%d] tmp_higest_usn: %llu , highest_usn: %llu\n",y,
451                                 (long long)req->req5.highwatermark.tmp_highest_usn,
452                                 (long long)req->req5.highwatermark.highest_usn));
453                 }
454
455                 status = rpccli_drsuapi_DsGetNCChanges(ctx->cli, mem_ctx,
456                                                        &ctx->bind_handle,
457                                                        level,
458                                                        req,
459                                                        &level_out,
460                                                        &ctr,
461                                                        &werr);
462                 if (!NT_STATUS_IS_OK(status)) {
463                         ctx->error_message = talloc_asprintf(ctx,
464                                 "Failed to get NC Changes: %s",
465                                 get_friendly_werror_msg(werr));
466                         goto out;
467                 }
468
469                 if (!W_ERROR_IS_OK(werr)) {
470                         status = werror_to_ntstatus(werr);
471                         goto out;
472                 }
473
474                 if (level_out == 1) {
475                         out_level = 1;
476                         ctr1 = &ctr.ctr1;
477                 } else if (level_out == 2 && ctr.ctr2.mszip1.ts) {
478                         out_level = 1;
479                         ctr1 = &ctr.ctr2.mszip1.ts->ctr1;
480                 } else if (level_out == 6) {
481                         out_level = 6;
482                         ctr6 = &ctr.ctr6;
483                 } else if (level_out == 7
484                            && ctr.ctr7.level == 6
485                            && ctr.ctr7.type == DRSUAPI_COMPRESSION_TYPE_MSZIP
486                            && ctr.ctr7.ctr.mszip6.ts) {
487                         out_level = 6;
488                         ctr6 = &ctr.ctr7.ctr.mszip6.ts->ctr6;
489                 } else if (level_out == 7
490                            && ctr.ctr7.level == 6
491                            && ctr.ctr7.type == DRSUAPI_COMPRESSION_TYPE_XPRESS
492                            && ctr.ctr7.ctr.xpress6.ts) {
493                         out_level = 6;
494                         ctr6 = &ctr.ctr7.ctr.xpress6.ts->ctr6;
495                 }
496
497                 if (out_level == 1) {
498                         DEBUG(1,("end[%d] tmp_highest_usn: %llu , highest_usn: %llu\n",y,
499                                 (long long)ctr1->new_highwatermark.tmp_highest_usn,
500                                 (long long)ctr1->new_highwatermark.highest_usn));
501
502                         first_object = ctr1->first_object;
503                         mapping_ctr = &ctr1->mapping_ctr;
504
505                         if (ctr1->more_data) {
506                                 req->req5.highwatermark = ctr1->new_highwatermark;
507                         } else {
508                                 last_query = true;
509                                 if (ctr1->uptodateness_vector &&
510                                     !ctx->single_object_replication)
511                                 {
512                                         new_utdv->version = 1;
513                                         new_utdv->ctr.ctr1.count =
514                                                 ctr1->uptodateness_vector->count;
515                                         new_utdv->ctr.ctr1.cursors =
516                                                 ctr1->uptodateness_vector->cursors;
517                                 }
518                         }
519                 } else if (out_level == 6) {
520                         DEBUG(1,("end[%d] tmp_highest_usn: %llu , highest_usn: %llu\n",y,
521                                 (long long)ctr6->new_highwatermark.tmp_highest_usn,
522                                 (long long)ctr6->new_highwatermark.highest_usn));
523
524                         first_object = ctr6->first_object;
525                         mapping_ctr = &ctr6->mapping_ctr;
526
527                         if (ctr6->more_data) {
528                                 req->req8.highwatermark = ctr6->new_highwatermark;
529                         } else {
530                                 last_query = true;
531                                 if (ctr6->uptodateness_vector &&
532                                     !ctx->single_object_replication)
533                                 {
534                                         new_utdv->version = 2;
535                                         new_utdv->ctr.ctr2.count =
536                                                 ctr6->uptodateness_vector->count;
537                                         new_utdv->ctr.ctr2.cursors =
538                                                 ctr6->uptodateness_vector->cursors;
539                                 }
540                         }
541                 }
542
543                 status = cli_get_session_key(mem_ctx, ctx->cli, &ctx->session_key);
544                 if (!NT_STATUS_IS_OK(status)) {
545                         ctx->error_message = talloc_asprintf(ctx,
546                                 "Failed to get Session Key: %s",
547                                 nt_errstr(status));
548                         goto out;
549                 }
550
551                 libnet_dssync_decrypt_attributes(mem_ctx,
552                                                  &ctx->session_key,
553                                                  first_object);
554
555                 if (ctx->ops->process_objects) {
556                         status = ctx->ops->process_objects(ctx, mem_ctx,
557                                                            first_object,
558                                                            mapping_ctr);
559                         if (!NT_STATUS_IS_OK(status)) {
560                                 ctx->error_message = talloc_asprintf(ctx,
561                                         "Failed to call processing function: %s",
562                                         nt_errstr(status));
563                                 goto out;
564                         }
565                 }
566         }
567
568         *pnew_utdv = new_utdv;
569
570 out:
571         return status;
572 }
573
574 static NTSTATUS libnet_dssync_process(TALLOC_CTX *mem_ctx,
575                                       struct dssync_context *ctx)
576 {
577         NTSTATUS status;
578
579         uint32_t level = 0;
580         union drsuapi_DsGetNCChangesRequest req;
581         struct replUpToDateVectorBlob *old_utdv = NULL;
582         struct replUpToDateVectorBlob *pnew_utdv = NULL;
583         const char **dns;
584         uint32_t dn_count;
585         uint32_t count;
586
587         if (ctx->ops->startup) {
588                 status = ctx->ops->startup(ctx, mem_ctx, &old_utdv);
589                 if (!NT_STATUS_IS_OK(status)) {
590                         ctx->error_message = talloc_asprintf(ctx,
591                                 "Failed to call startup operation: %s",
592                                 nt_errstr(status));
593                         goto out;
594                 }
595         }
596
597         if (ctx->single_object_replication && ctx->object_dns) {
598                 dns = ctx->object_dns;
599                 dn_count = ctx->object_count;
600         } else {
601                 dns = &ctx->nc_dn;
602                 dn_count = 1;
603         }
604
605         status = NT_STATUS_OK;
606
607         for (count=0; count < dn_count; count++) {
608                 status = libnet_dssync_build_request(mem_ctx, ctx,
609                                                      dns[count],
610                                                      old_utdv, &level,
611                                                      &req);
612                 if (!NT_STATUS_IS_OK(status)) {
613                         goto out;
614                 }
615
616                 status = libnet_dssync_getncchanges(mem_ctx, ctx, level, &req,
617                                                     &pnew_utdv);
618                 if (!NT_STATUS_IS_OK(status)) {
619                         ctx->error_message = talloc_asprintf(ctx,
620                                 "Failed to call DsGetNCCHanges: %s",
621                                 nt_errstr(status));
622                         goto out;
623                 }
624         }
625
626         if (ctx->ops->finish) {
627                 status = ctx->ops->finish(ctx, mem_ctx, pnew_utdv);
628                 if (!NT_STATUS_IS_OK(status)) {
629                         ctx->error_message = talloc_asprintf(ctx,
630                                 "Failed to call finishing operation: %s",
631                                 nt_errstr(status));
632                         goto out;
633                 }
634         }
635
636  out:
637         return status;
638 }
639
640 /****************************************************************
641 ****************************************************************/
642
643 NTSTATUS libnet_dssync(TALLOC_CTX *mem_ctx,
644                        struct dssync_context *ctx)
645 {
646         NTSTATUS status;
647         TALLOC_CTX *tmp_ctx;
648
649         tmp_ctx = talloc_new(mem_ctx);
650         if (!tmp_ctx) {
651                 return NT_STATUS_NO_MEMORY;
652         }
653
654         status = libnet_dssync_init(tmp_ctx, ctx);
655         if (!NT_STATUS_IS_OK(status)) {
656                 goto out;
657         }
658
659         status = libnet_dssync_process(tmp_ctx, ctx);
660         if (!NT_STATUS_IS_OK(status)) {
661                 goto out;
662         }
663
664  out:
665         TALLOC_FREE(tmp_ctx);
666         return status;
667 }
668