?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
s4:kdc: Implement KDC plugin hardware authentication policy
[Samba.git] / source3 / rpc_server / netlogon / srv_netlog_nt.c
blobfa3e597fa8e40259e83b02525ea6a9e81f8f2f26
1 /*
2 * Unix SMB/CIFS implementation.
3 * RPC Pipe client / server routines
4 * Copyright (C) Andrew Tridgell 1992-1997,
5 * Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
6 * Copyright (C) Paul Ashton 1997.
7 * Copyright (C) Jeremy Allison 1998-2001.
8 * Copyright (C) Andrew Bartlett 2001.
9 * Copyright (C) Guenther Deschner 2008-2009.
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 3 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, see <http://www.gnu.org/licenses/>.
23 */
24
25 /* This is the implementation of the netlogon pipe. */
26
27 #include "includes.h"
28 #include "system/passwd.h" /* uid_wrapper */
29 #include "ntdomain.h"
30 #include "../libcli/auth/schannel.h"
31 #include "librpc/rpc/dcesrv_core.h"
32 #include "librpc/gen_ndr/ndr_netlogon.h"
33 #include "librpc/gen_ndr/ndr_netlogon_scompat.h"
34 #include "librpc/gen_ndr/ndr_samr_c.h"
35 #include "librpc/gen_ndr/ndr_lsa_c.h"
36 #include "rpc_client/cli_lsarpc.h"
37 #include "rpc_client/init_lsa.h"
38 #include "rpc_client/init_samr.h"
39 #include "rpc_server/rpc_ncacn_np.h"
40 #include "../libcli/security/security.h"
41 #include "../libcli/security/dom_sid.h"
42 #include "librpc/gen_ndr/ndr_drsblobs.h"
43 #include "lib/crypto/md4.h"
44 #include "nsswitch/libwbclient/wbclient.h"
45 #include "../libcli/registry/util_reg.h"
46 #include "passdb.h"
47 #include "auth.h"
48 #include "messages.h"
49 #include "../lib/tsocket/tsocket.h"
50 #include "lib/param/param.h"
51 #include "libsmb/dsgetdcname.h"
52 #include "lib/util/util_str_escape.h"
53 #include "source3/lib/substitute.h"
54 #include "librpc/rpc/server/netlogon/schannel_util.h"
55
56 #undef DBGC_CLASS
57 #define DBGC_CLASS DBGC_RPC_SRV
58
59 /*************************************************************************
60 _netr_LogonControl
61 *************************************************************************/
62
63 WERROR _netr_LogonControl(struct pipes_struct *p,
64 struct netr_LogonControl *r)
65 {
66 struct netr_LogonControl2Ex l;
67
68 switch (r->in.level) {
69 case 1:
70 break;
71 case 2:
72 return WERR_NOT_SUPPORTED;
73 default:
74 return WERR_INVALID_LEVEL;
75 }
76
77 switch (r->in.function_code) {
78 case NETLOGON_CONTROL_QUERY:
79 case NETLOGON_CONTROL_REPLICATE:
80 case NETLOGON_CONTROL_SYNCHRONIZE:
81 case NETLOGON_CONTROL_PDC_REPLICATE:
82 case NETLOGON_CONTROL_BREAKPOINT:
83 case NETLOGON_CONTROL_BACKUP_CHANGE_LOG:
84 case NETLOGON_CONTROL_TRUNCATE_LOG:
85 break;
86 default:
87 return WERR_NOT_SUPPORTED;
88 }
89
90 l.in.logon_server = r->in.logon_server;
91 l.in.function_code = r->in.function_code;
92 l.in.level = r->in.level;
93 l.in.data = NULL;
94 l.out.query = r->out.query;
95
96 return _netr_LogonControl2Ex(p, &l);
97 }
98
99 /*************************************************************************
100 _netr_LogonControl2
101 *************************************************************************/
102
103 WERROR _netr_LogonControl2(struct pipes_struct *p,
104 struct netr_LogonControl2 *r)
105 {
106 struct netr_LogonControl2Ex l;
107
108 l.in.logon_server = r->in.logon_server;
109 l.in.function_code = r->in.function_code;
110 l.in.level = r->in.level;
111 l.in.data = r->in.data;
112 l.out.query = r->out.query;
113
114 return _netr_LogonControl2Ex(p, &l);
115 }
116
117 /*************************************************************************
118 *************************************************************************/
119
120 static bool wb_change_trust_creds(const char *domain, WERROR *tc_status)
121 {
122 wbcErr result;
123 struct wbcAuthErrorInfo *error = NULL;
124
125 result = wbcChangeTrustCredentials(domain, &error);
126 switch (result) {
127 case WBC_ERR_WINBIND_NOT_AVAILABLE:
128 return false;
129 case WBC_ERR_DOMAIN_NOT_FOUND:
130 *tc_status = WERR_NO_SUCH_DOMAIN;
131 return true;
132 case WBC_ERR_SUCCESS:
133 *tc_status = WERR_OK;
134 return true;
135 default:
136 break;
137 }
138
139 if (error && error->nt_status != 0) {
140 *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status));
141 } else {
142 *tc_status = WERR_TRUST_FAILURE;
143 }
144 wbcFreeMemory(error);
145 return true;
146 }
147
148 /*************************************************************************
149 *************************************************************************/
150
151 static bool wb_check_trust_creds(const char *domain, WERROR *tc_status)
152 {
153 wbcErr result;
154 struct wbcAuthErrorInfo *error = NULL;
155
156 result = wbcCheckTrustCredentials(domain, &error);
157 switch (result) {
158 case WBC_ERR_WINBIND_NOT_AVAILABLE:
159 return false;
160 case WBC_ERR_DOMAIN_NOT_FOUND:
161 *tc_status = WERR_NO_SUCH_DOMAIN;
162 return true;
163 case WBC_ERR_SUCCESS:
164 *tc_status = WERR_OK;
165 return true;
166 default:
167 break;
168 }
169
170 if (error && error->nt_status != 0) {
171 *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status));
172 } else {
173 *tc_status = WERR_TRUST_FAILURE;
174 }
175 wbcFreeMemory(error);
176 return true;
177 }
178
179 /****************************************************************
180 _netr_LogonControl2Ex
181 ****************************************************************/
182
183 WERROR _netr_LogonControl2Ex(struct pipes_struct *p,
184 struct netr_LogonControl2Ex *r)
185 {
186 struct dcesrv_call_state *dce_call = p->dce_call;
187 struct auth_session_info *session_info =
188 dcesrv_call_session_info(dce_call);
189 uint32_t flags = 0x0;
190 WERROR pdc_connection_status = WERR_OK;
191 uint32_t logon_attempts = 0x0;
192 WERROR tc_status;
193 fstring dc_name2;
194 const char *dc_name = NULL;
195 struct sockaddr_storage dc_ss;
196 const char *domain = NULL;
197 struct netr_NETLOGON_INFO_1 *info1;
198 struct netr_NETLOGON_INFO_2 *info2;
199 struct netr_NETLOGON_INFO_3 *info3;
200 struct netr_NETLOGON_INFO_4 *info4;
201 const char *fn;
202 NTSTATUS status;
203 struct netr_DsRGetDCNameInfo *dc_info;
204
205 switch (dce_call->pkt.u.request.opnum) {
206 case NDR_NETR_LOGONCONTROL:
207 fn = "_netr_LogonControl";
208 break;
209 case NDR_NETR_LOGONCONTROL2:
210 fn = "_netr_LogonControl2";
211 break;
212 case NDR_NETR_LOGONCONTROL2EX:
213 fn = "_netr_LogonControl2Ex";
214 break;
215 default:
216 return WERR_INVALID_PARAMETER;
217 }
218
219 switch (r->in.level) {
220 case 1:
221 case 2:
222 case 3:
223 case 4:
224 break;
225 default:
226 return WERR_INVALID_LEVEL;
227 }
228
229 switch (r->in.function_code) {
230 case NETLOGON_CONTROL_QUERY:
231 break;
232 default:
233 if ((geteuid() != sec_initial_uid()) &&
234 !nt_token_check_domain_rid(
235 session_info->security_token, DOMAIN_RID_ADMINS) &&
236 !nt_token_check_sid(
237 &global_sid_Builtin_Administrators,
238 session_info->security_token))
239 {
240 return WERR_ACCESS_DENIED;
241 }
242 break;
243 }
244
245 tc_status = WERR_NO_SUCH_DOMAIN;
246
247 switch (r->in.function_code) {
248 case NETLOGON_CONTROL_QUERY:
249 switch (r->in.level) {
250 case 1:
251 case 3:
252 break;
253 default:
254 return WERR_INVALID_PARAMETER;
255 }
256
257 tc_status = WERR_OK;
258 break;
259 case NETLOGON_CONTROL_REPLICATE:
260 case NETLOGON_CONTROL_SYNCHRONIZE:
261 case NETLOGON_CONTROL_PDC_REPLICATE:
262 case NETLOGON_CONTROL_BACKUP_CHANGE_LOG:
263 case NETLOGON_CONTROL_BREAKPOINT:
264 case NETLOGON_CONTROL_TRUNCATE_LOG:
265 case NETLOGON_CONTROL_TRANSPORT_NOTIFY:
266 case NETLOGON_CONTROL_FORCE_DNS_REG:
267 case NETLOGON_CONTROL_QUERY_DNS_REG:
268 return WERR_NOT_SUPPORTED;
269
270 case NETLOGON_CONTROL_FIND_USER:
271 if (!r->in.data || !r->in.data->user) {
272 return WERR_NOT_SUPPORTED;
273 }
274 break;
275 case NETLOGON_CONTROL_SET_DBFLAG:
276 if (!r->in.data) {
277 return WERR_NOT_SUPPORTED;
278 }
279 break;
280 case NETLOGON_CONTROL_TC_VERIFY:
281 if (!r->in.data || !r->in.data->domain) {
282 return WERR_NOT_SUPPORTED;
283 }
284
285 if (!wb_check_trust_creds(r->in.data->domain, &tc_status)) {
286 return WERR_NOT_SUPPORTED;
287 }
288 break;
289 case NETLOGON_CONTROL_TC_QUERY:
290 if (!r->in.data || !r->in.data->domain) {
291 return WERR_NOT_SUPPORTED;
292 }
293
294 domain = r->in.data->domain;
295
296 if (!is_trusted_domain(domain)) {
297 break;
298 }
299
300 if (!get_dc_name(domain, NULL, dc_name2, &dc_ss)) {
301 tc_status = WERR_NO_LOGON_SERVERS;
302 break;
303 }
304
305 dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2);
306 if (!dc_name) {
307 return WERR_NOT_ENOUGH_MEMORY;
308 }
309
310 tc_status = WERR_OK;
311
312 break;
313
314 case NETLOGON_CONTROL_REDISCOVER:
315 if (!r->in.data || !r->in.data->domain) {
316 return WERR_NOT_SUPPORTED;
317 }
318
319 domain = r->in.data->domain;
320
321 if (!is_trusted_domain(domain)) {
322 break;
323 }
324
325 status = dsgetdcname(p->mem_ctx, p->msg_ctx, domain, NULL, NULL,
326 DS_FORCE_REDISCOVERY | DS_RETURN_FLAT_NAME,
327 &dc_info);
328 if (!NT_STATUS_IS_OK(status)) {
329 tc_status = WERR_NO_LOGON_SERVERS;
330 break;
331 }
332
333 dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_info->dc_unc);
334 if (!dc_name) {
335 return WERR_NOT_ENOUGH_MEMORY;
336 }
337
338 tc_status = WERR_OK;
339
340 break;
341
342 case NETLOGON_CONTROL_CHANGE_PASSWORD:
343 if (!r->in.data || !r->in.data->domain) {
344 return WERR_NOT_SUPPORTED;
345 }
346
347 if (!wb_change_trust_creds(r->in.data->domain, &tc_status)) {
348 return WERR_NOT_SUPPORTED;
349 }
350 break;
351
352 default:
353 /* no idea what this should be */
354 DEBUG(0,("%s: unimplemented function level [%d]\n",
355 fn, r->in.function_code));
356 return WERR_NOT_SUPPORTED;
357 }
358
359 /* prepare the response */
360
361 switch (r->in.level) {
362 case 1:
363 info1 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_1);
364 W_ERROR_HAVE_NO_MEMORY(info1);
365
366 info1->flags = flags;
367 info1->pdc_connection_status = pdc_connection_status;
368
369 r->out.query->info1 = info1;
370 break;
371 case 2:
372 info2 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_2);
373 W_ERROR_HAVE_NO_MEMORY(info2);
374
375 info2->flags = flags;
376 info2->pdc_connection_status = pdc_connection_status;
377 info2->trusted_dc_name = dc_name;
378 info2->tc_connection_status = tc_status;
379
380 r->out.query->info2 = info2;
381 break;
382 case 3:
383 info3 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_3);
384 W_ERROR_HAVE_NO_MEMORY(info3);
385
386 info3->flags = flags;
387 info3->logon_attempts = logon_attempts;
388
389 r->out.query->info3 = info3;
390 break;
391 case 4:
392 info4 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_4);
393 W_ERROR_HAVE_NO_MEMORY(info4);
394
395 info4->trusted_dc_name = dc_name;
396 info4->trusted_domain_name = r->in.data->domain;
397
398 r->out.query->info4 = info4;
399 break;
400 default:
401 return WERR_INVALID_LEVEL;
402 }
403
404 return WERR_OK;
405 }
406
407 /*************************************************************************
408 _netr_NetrEnumerateTrustedDomains
409 *************************************************************************/
410
411 NTSTATUS _netr_NetrEnumerateTrustedDomains(struct pipes_struct *p,
412 struct netr_NetrEnumerateTrustedDomains *r)
413 {
414 struct dcesrv_call_state *dce_call = p->dce_call;
415 struct dcesrv_connection *dcesrv_conn = dce_call->conn;
416 const struct tsocket_address *local_address =
417 dcesrv_connection_get_local_address(dcesrv_conn);
418 const struct tsocket_address *remote_address =
419 dcesrv_connection_get_remote_address(dcesrv_conn);
420 struct auth_session_info *session_info =
421 dcesrv_call_session_info(dce_call);
422 NTSTATUS status;
423 NTSTATUS result = NT_STATUS_OK;
424 DATA_BLOB blob;
425 size_t num_domains = 0;
426 const char **trusted_domains = NULL;
427 struct lsa_DomainList domain_list;
428 struct dcerpc_binding_handle *h = NULL;
429 struct policy_handle pol;
430 uint32_t enum_ctx = 0;
431 uint32_t max_size = (uint32_t)-1;
432 union lsa_revision_info out_revision_info = {
433 .info1 = {
434 .revision = 0,
435 },
436 };
437 uint32_t out_version = 0;
438
439 ZERO_STRUCT(pol);
440 DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
441
442 status = rpcint_binding_handle(p->mem_ctx,
443 &ndr_table_lsarpc,
444 remote_address,
445 local_address,
446 session_info,
447 p->msg_ctx,
448 &h);
449 if (!NT_STATUS_IS_OK(status)) {
450 return status;
451 }
452
453 status = dcerpc_lsa_open_policy_fallback(
454 h,
455 p->mem_ctx,
456 NULL,
457 true,
458 LSA_POLICY_VIEW_LOCAL_INFORMATION,
459 &out_version,
460 &out_revision_info,
461 &pol,
462 &result);
463 if (any_nt_status_not_ok(status, result, &status)) {
464 goto out;
465 }
466
467 do {
468 uint32_t i;
469
470 /* Lookup list of trusted domains */
471 status = dcerpc_lsa_EnumTrustDom(h,
472 p->mem_ctx,
473 &pol,
474 &enum_ctx,
475 &domain_list,
476 max_size,
477 &result);
478 if (!NT_STATUS_IS_OK(status)) {
479 goto out;
480 }
481 if (!NT_STATUS_IS_OK(result) &&
482 !NT_STATUS_EQUAL(result, NT_STATUS_NO_MORE_ENTRIES) &&
483 !NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) {
484 status = result;
485 goto out;
486 }
487
488 for (i = 0; i < domain_list.count; i++) {
489 if (!add_string_to_array(p->mem_ctx, domain_list.domains[i].name.string,
490 &trusted_domains, &num_domains)) {
491 status = NT_STATUS_NO_MEMORY;
492 goto out;
493 }
494 }
495 } while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES));
496
497 if (num_domains > 0) {
498 /* multi sz terminate */
499 trusted_domains = talloc_realloc(p->mem_ctx, trusted_domains, const char *, num_domains + 1);
500 if (trusted_domains == NULL) {
501 status = NT_STATUS_NO_MEMORY;
502 goto out;
503 }
504
505 trusted_domains[num_domains] = NULL;
506 }
507
508 if (!push_reg_multi_sz(trusted_domains, &blob, trusted_domains)) {
509 TALLOC_FREE(trusted_domains);
510 status = NT_STATUS_NO_MEMORY;
511 goto out;
512 }
513
514 r->out.trusted_domains_blob->data = blob.data;
515 r->out.trusted_domains_blob->length = blob.length;
516
517 DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
518
519 status = NT_STATUS_OK;
520
521 out:
522 if (is_valid_policy_hnd(&pol)) {
523 dcerpc_lsa_Close(h, p->mem_ctx, &pol, &result);
524 }
525
526 return status;
527 }
528
529 /*************************************************************************
530 *************************************************************************/
531
532 static NTSTATUS samr_find_machine_account(TALLOC_CTX *mem_ctx,
533 struct dcerpc_binding_handle *b,
534 const char *account_name,
535 uint32_t access_mask,
536 struct dom_sid2 **domain_sid_p,
537 uint32_t *user_rid_p,
538 struct policy_handle *user_handle)
539 {
540 NTSTATUS status;
541 NTSTATUS result = NT_STATUS_OK;
542 struct policy_handle connect_handle;
543 struct policy_handle domain_handle = { 0, };
544 struct lsa_String domain_name;
545 struct dom_sid2 *domain_sid;
546 struct lsa_String names;
547 struct samr_Ids rids;
548 struct samr_Ids types;
549 uint32_t rid;
550
551 status = dcerpc_samr_Connect2(b, mem_ctx,
552 lp_netbios_name(),
553 SAMR_ACCESS_CONNECT_TO_SERVER |
554 SAMR_ACCESS_ENUM_DOMAINS |
555 SAMR_ACCESS_LOOKUP_DOMAIN,
556 &connect_handle,
557 &result);
558 if (any_nt_status_not_ok(status, result, &status)) {
559 goto out;
560 }
561
562 init_lsa_String(&domain_name, get_global_sam_name());
563
564 status = dcerpc_samr_LookupDomain(b, mem_ctx,
565 &connect_handle,
566 &domain_name,
567 &domain_sid,
568 &result);
569 if (any_nt_status_not_ok(status, result, &status)) {
570 goto out;
571 }
572
573 status = dcerpc_samr_OpenDomain(b, mem_ctx,
574 &connect_handle,
575 SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
576 domain_sid,
577 &domain_handle,
578 &result);
579 if (any_nt_status_not_ok(status, result, &status)) {
580 goto out;
581 }
582
583 init_lsa_String(&names, account_name);
584
585 status = dcerpc_samr_LookupNames(b, mem_ctx,
586 &domain_handle,
587 1,
588 &names,
589 &rids,
590 &types,
591 &result);
592 if (any_nt_status_not_ok(status, result, &status)) {
593 goto out;
594 }
595
596 if (rids.count != 1) {
597 status = NT_STATUS_NO_SUCH_USER;
598 goto out;
599 }
600 if (types.count != 1) {
601 status = NT_STATUS_INVALID_PARAMETER;
602 goto out;
603 }
604 if (types.ids[0] != SID_NAME_USER) {
605 status = NT_STATUS_NO_SUCH_USER;
606 goto out;
607 }
608
609 rid = rids.ids[0];
610
611 status = dcerpc_samr_OpenUser(b, mem_ctx,
612 &domain_handle,
613 access_mask,
614 rid,
615 user_handle,
616 &result);
617 if (any_nt_status_not_ok(status, result, &status)) {
618 goto out;
619 }
620
621 if (user_rid_p) {
622 *user_rid_p = rid;
623 }
624
625 if (domain_sid_p) {
626 *domain_sid_p = domain_sid;
627 }
628
629 out:
630 if (is_valid_policy_hnd(&domain_handle)) {
631 dcerpc_samr_Close(b, mem_ctx, &domain_handle, &result);
632 }
633 if (is_valid_policy_hnd(&connect_handle)) {
634 dcerpc_samr_Close(b, mem_ctx, &connect_handle, &result);
635 }
636
637 return status;
638 }
639
640 /******************************************************************
641 gets a machine password entry. checks access rights of the host.
642 ******************************************************************/
643
644 static NTSTATUS get_md4pw(struct samr_Password *md4pw, const char *mach_acct,
645 enum netr_SchannelType sec_chan_type,
646 struct dom_sid *sid,
647 struct messaging_context *msg_ctx)
648 {
649 NTSTATUS status;
650 NTSTATUS result = NT_STATUS_OK;
651 TALLOC_CTX *mem_ctx = NULL;
652 struct dcerpc_binding_handle *h = NULL;
653 struct tsocket_address *local = NULL;
654 struct policy_handle user_handle = { .handle_type = 0 };
655 uint32_t user_rid = UINT32_MAX;
656 struct dom_sid *domain_sid = NULL;
657 uint32_t acct_ctrl = 0;
658 union samr_UserInfo *info = NULL;
659 struct auth_session_info *session_info = NULL;
660 int rc;
661
662 #if 0
663
664 /*
665 * Currently this code is redundant as we already have a filter
666 * by hostname list. What this code really needs to do is to
667 * get a hosts allowed/hosts denied list from the SAM database
668 * on a per user basis, and make the access decision there.
669 * I will leave this code here for now as a reminder to implement
670 * this at a later date. JRA.
671 */
672
673 if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(),
674 p->client_id.name,
675 p->client_id.addr)) {
676 DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct));
677 return False;
678 }
679 #endif /* 0 */
680
681 mem_ctx = talloc_stackframe();
682
683 status = make_session_info_system(mem_ctx, &session_info);
684 if (!NT_STATUS_IS_OK(status)) {
685 goto out;
686 }
687
688 ZERO_STRUCT(user_handle);
689
690 rc = tsocket_address_inet_from_strings(mem_ctx,
691 "ip",
692 "127.0.0.1",
693 0,
694 &local);
695 if (rc < 0) {
696 status = NT_STATUS_NO_MEMORY;
697 goto out;
698 }
699
700 status = rpcint_binding_handle(mem_ctx,
701 &ndr_table_samr,
702 local,
703 NULL,
704 session_info,
705 msg_ctx,
706 &h);
707 if (!NT_STATUS_IS_OK(status)) {
708 goto out;
709 }
710
711 status = samr_find_machine_account(mem_ctx, h, mach_acct,
712 SEC_FLAG_MAXIMUM_ALLOWED,
713 &domain_sid, &user_rid,
714 &user_handle);
715 if (!NT_STATUS_IS_OK(status)) {
716 goto out;
717 }
718
719 status = dcerpc_samr_QueryUserInfo2(h,
720 mem_ctx,
721 &user_handle,
722 UserControlInformation,
723 &info,
724 &result);
725 if (any_nt_status_not_ok(status, result, &status)) {
726 goto out;
727 }
728
729 acct_ctrl = info->info16.acct_flags;
730
731 if (acct_ctrl & ACB_DISABLED) {
732 DEBUG(0,("get_md4pw: Workstation %s: account is disabled\n", mach_acct));
733 status = NT_STATUS_ACCOUNT_DISABLED;
734 goto out;
735 }
736
737 if (!(acct_ctrl & ACB_SVRTRUST) &&
738 !(acct_ctrl & ACB_WSTRUST) &&
739 !(acct_ctrl & ACB_DOMTRUST))
740 {
741 DEBUG(0,("get_md4pw: Workstation %s: account is not a trust account\n", mach_acct));
742 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
743 goto out;
744 }
745
746 switch (sec_chan_type) {
747 case SEC_CHAN_BDC:
748 if (!(acct_ctrl & ACB_SVRTRUST)) {
749 DEBUG(0,("get_md4pw: Workstation %s: BDC secure channel requested "
750 "but not a server trust account\n", mach_acct));
751 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
752 goto out;
753 }
754 break;
755 case SEC_CHAN_WKSTA:
756 if (!(acct_ctrl & ACB_WSTRUST)) {
757 DEBUG(0,("get_md4pw: Workstation %s: WORKSTATION secure channel requested "
758 "but not a workstation trust account\n", mach_acct));
759 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
760 goto out;
761 }
762 break;
763 case SEC_CHAN_DOMAIN:
764 if (!(acct_ctrl & ACB_DOMTRUST)) {
765 DEBUG(0,("get_md4pw: Workstation %s: DOMAIN secure channel requested "
766 "but not a interdomain trust account\n", mach_acct));
767 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
768 goto out;
769 }
770 break;
771 default:
772 break;
773 }
774
775 become_root();
776 status = dcerpc_samr_QueryUserInfo2(h,
777 mem_ctx,
778 &user_handle,
779 UserInternal1Information,
780 &info,
781 &result);
782 unbecome_root();
783 if (any_nt_status_not_ok(status, result, &status)) {
784 goto out;
785 }
786
787 if (info->info18.nt_pwd_active == 0) {
788 DEBUG(0,("get_md4pw: Workstation %s: account does not have a password\n", mach_acct));
789 status = NT_STATUS_LOGON_FAILURE;
790 goto out;
791 }
792
793 /* samr gives out nthash unencrypted (!) */
794 memcpy(md4pw->hash, info->info18.nt_pwd.hash, 16);
795
796 sid_compose(sid, domain_sid, user_rid);
797
798 out:
799 if (h && is_valid_policy_hnd(&user_handle)) {
800 dcerpc_samr_Close(h, mem_ctx, &user_handle, &result);
801 }
802
803 talloc_free(mem_ctx);
804
805 return status;
806 }
807
808 /*************************************************************************
809 _netr_ServerReqChallenge
810 *************************************************************************/
811
812 NTSTATUS _netr_ServerReqChallenge(struct pipes_struct *p,
813 struct netr_ServerReqChallenge *r)
814 {
815 struct dcesrv_call_state *dce_call = p->dce_call;
816 struct netlogon_server_pipe_state *pipe_state = NULL;
817 NTSTATUS status;
818
819 pipe_state = dcesrv_iface_state_find_conn(
820 dce_call,
821 NETLOGON_SERVER_PIPE_STATE_MAGIC,
822 struct netlogon_server_pipe_state);
823
824 if (pipe_state) {
825 DEBUG(10,("_netr_ServerReqChallenge: new challenge requested. Clearing old state.\n"));
826 talloc_free(pipe_state);
827 }
828
829 pipe_state = talloc(p->mem_ctx, struct netlogon_server_pipe_state);
830 NT_STATUS_HAVE_NO_MEMORY(pipe_state);
831
832 pipe_state->client_challenge = *r->in.credentials;
833
834 netlogon_creds_random_challenge(&pipe_state->server_challenge);
835
836 *r->out.return_credentials = pipe_state->server_challenge;
837
838 status = dcesrv_iface_state_store_conn(
839 dce_call,
840 NETLOGON_SERVER_PIPE_STATE_MAGIC,
841 pipe_state);
842 if (!NT_STATUS_IS_OK(status)) {
843 return status;
844 }
845
846 return NT_STATUS_OK;
847 }
848
849 /*************************************************************************
850 _netr_ServerAuthenticate
851 Create the initial credentials.
852 *************************************************************************/
853
854 NTSTATUS _netr_ServerAuthenticate(struct pipes_struct *p,
855 struct netr_ServerAuthenticate *r)
856 {
857 struct netr_ServerAuthenticate3 a;
858 uint32_t negotiate_flags = 0;
859 uint32_t rid;
860
861 a.in.server_name = r->in.server_name;
862 a.in.account_name = r->in.account_name;
863 a.in.secure_channel_type = r->in.secure_channel_type;
864 a.in.computer_name = r->in.computer_name;
865 a.in.credentials = r->in.credentials;
866 a.in.negotiate_flags = &negotiate_flags;
867
868 a.out.return_credentials = r->out.return_credentials;
869 a.out.rid = &rid;
870 a.out.negotiate_flags = &negotiate_flags;
871
872 return _netr_ServerAuthenticate3(p, &a);
873
874 }
875
876 /*************************************************************************
877 _netr_ServerAuthenticate3
878 *************************************************************************/
879
880 NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
881 struct netr_ServerAuthenticate3 *r)
882 {
883 struct dcesrv_call_state *dce_call = p->dce_call;
884 NTSTATUS status;
885 uint32_t srv_flgs;
886 /* r->in.negotiate_flags is an aliased pointer to r->out.negotiate_flags,
887 * so use a copy to avoid destroying the client values. */
888 uint32_t in_neg_flags = *r->in.negotiate_flags;
889 const char *fn;
890 struct loadparm_context *lp_ctx = p->dce_call->conn->dce_ctx->lp_ctx;
891 struct dom_sid sid;
892 struct samr_Password mach_pwd;
893 struct netlogon_creds_CredentialState *creds;
894 struct netlogon_server_pipe_state *pipe_state = NULL;
895
896 /* According to Microsoft (see bugid #6099)
897 * Windows 7 looks at the negotiate_flags
898 * returned in this structure *even if the
899 * call fails with access denied* ! So in order
900 * to allow Win7 to connect to a Samba NT style
901 * PDC we set the flags before we know if it's
902 * an error or not.
903 */
904
905 /* 0x000001ff */
906 srv_flgs = NETLOGON_NEG_ACCOUNT_LOCKOUT |
907 NETLOGON_NEG_PERSISTENT_SAMREPL |
908 NETLOGON_NEG_ARCFOUR |
909 NETLOGON_NEG_PROMOTION_COUNT |
910 NETLOGON_NEG_CHANGELOG_BDC |
911 NETLOGON_NEG_FULL_SYNC_REPL |
912 NETLOGON_NEG_MULTIPLE_SIDS |
913 NETLOGON_NEG_REDO |
914 NETLOGON_NEG_PASSWORD_CHANGE_REFUSAL |
915 NETLOGON_NEG_PASSWORD_SET2;
916
917 /* Ensure we support strong (128-bit) keys. */
918 if (in_neg_flags & NETLOGON_NEG_STRONG_KEYS) {
919 srv_flgs |= NETLOGON_NEG_STRONG_KEYS;
920 }
921
922 if (in_neg_flags & NETLOGON_NEG_SUPPORTS_AES) {
923 srv_flgs |= NETLOGON_NEG_SUPPORTS_AES;
924 }
925
926 if (in_neg_flags & NETLOGON_NEG_SCHANNEL) {
927 srv_flgs |= NETLOGON_NEG_SCHANNEL;
928 }
929
930 /*
931 * Support authentication of trusted domains.
932 *
933 * These flags are the minimum required set which works with win2k3
934 * and win2k8.
935 */
936 if (pdb_capabilities() & PDB_CAP_TRUSTED_DOMAINS_EX) {
937 srv_flgs |= NETLOGON_NEG_TRANSITIVE_TRUSTS |
938 NETLOGON_NEG_DNS_DOMAIN_TRUSTS |
939 NETLOGON_NEG_CROSS_FOREST_TRUSTS |
940 NETLOGON_NEG_NEUTRALIZE_NT4_EMULATION;
941 }
942
943 /*
944 * If weak crypto is disabled, do not announce that we support RC4.
945 */
946 if (lp_weak_crypto() == SAMBA_WEAK_CRYPTO_DISALLOWED) {
947 srv_flgs &= ~NETLOGON_NEG_ARCFOUR;
948 }
949
950 switch (dce_call->pkt.u.request.opnum) {
951 case NDR_NETR_SERVERAUTHENTICATE:
952 fn = "_netr_ServerAuthenticate";
953 break;
954 case NDR_NETR_SERVERAUTHENTICATE2:
955 fn = "_netr_ServerAuthenticate2";
956 break;
957 case NDR_NETR_SERVERAUTHENTICATE3:
958 fn = "_netr_ServerAuthenticate3";
959 break;
960 default:
961 return NT_STATUS_INTERNAL_ERROR;
962 }
963
964 /* We use this as the key to store the creds: */
965 /* r->in.computer_name */
966
967 pipe_state = dcesrv_iface_state_find_conn(
968 dce_call,
969 NETLOGON_SERVER_PIPE_STATE_MAGIC,
970 struct netlogon_server_pipe_state);
971
972 if (!pipe_state) {
973 DEBUG(0,("%s: no challenge sent to client %s\n", fn,
974 r->in.computer_name));
975 status = NT_STATUS_ACCESS_DENIED;
976 goto out;
977 }
978
979 status = get_md4pw(&mach_pwd,
980 r->in.account_name,
981 r->in.secure_channel_type,
982 &sid, p->msg_ctx);
983 if (!NT_STATUS_IS_OK(status)) {
984 DEBUG(0,("%s: failed to get machine password for "
985 "account %s: %s\n",
986 fn, r->in.account_name, nt_errstr(status) ));
987 /* always return NT_STATUS_ACCESS_DENIED */
988 status = NT_STATUS_ACCESS_DENIED;
989 goto out;
990 }
991
992 /* From the client / server challenges and md4 password, generate sess key */
993 /* Check client credentials are valid. */
994 creds = netlogon_creds_server_init(p->mem_ctx,
995 r->in.account_name,
996 r->in.computer_name,
997 r->in.secure_channel_type,
998 &pipe_state->client_challenge,
999 &pipe_state->server_challenge,
1000 &mach_pwd,
1001 r->in.credentials,
1002 r->out.return_credentials,
1003 srv_flgs);
1004 if (!creds) {
1005 DEBUG(0,("%s: netlogon_creds_server_check failed. Rejecting auth "
1006 "request from client %s machine account %s\n",
1007 fn, r->in.computer_name,
1008 r->in.account_name));
1009 status = NT_STATUS_ACCESS_DENIED;
1010 goto out;
1011 }
1012
1013 creds->sid = dom_sid_dup(creds, &sid);
1014 if (!creds->sid) {
1015 status = NT_STATUS_NO_MEMORY;
1016 goto out;
1017 }
1018
1019 /* Store off the state so we can continue after client disconnect. */
1020 become_root();
1021 status = schannel_save_creds_state(p->mem_ctx, lp_ctx, creds);
1022 unbecome_root();
1023
1024 if (!NT_STATUS_IS_OK(status)) {
1025 ZERO_STRUCTP(r->out.return_credentials);
1026 goto out;
1027 }
1028
1029 sid_peek_rid(&sid, r->out.rid);
1030
1031 status = NT_STATUS_OK;
1032
1033 out:
1034
1035 *r->out.negotiate_flags = srv_flgs;
1036 return status;
1037 }
1038
1039 /*************************************************************************
1040 _netr_ServerAuthenticate2
1041 *************************************************************************/
1042
1043 NTSTATUS _netr_ServerAuthenticate2(struct pipes_struct *p,
1044 struct netr_ServerAuthenticate2 *r)
1045 {
1046 struct netr_ServerAuthenticate3 a;
1047 uint32_t rid;
1048
1049 a.in.server_name = r->in.server_name;
1050 a.in.account_name = r->in.account_name;
1051 a.in.secure_channel_type = r->in.secure_channel_type;
1052 a.in.computer_name = r->in.computer_name;
1053 a.in.credentials = r->in.credentials;
1054 a.in.negotiate_flags = r->in.negotiate_flags;
1055
1056 a.out.return_credentials = r->out.return_credentials;
1057 a.out.rid = &rid;
1058 a.out.negotiate_flags = r->out.negotiate_flags;
1059
1060 return _netr_ServerAuthenticate3(p, &a);
1061 }
1062
1063 /*************************************************************************
1064 *************************************************************************/
1065
1066 static NTSTATUS samr_open_machine_account(
1067 struct dcerpc_binding_handle *b,
1068 const struct dom_sid *machine_sid,
1069 uint32_t access_mask,
1070 struct policy_handle *machine_handle)
1071 {
1072 TALLOC_CTX *frame = talloc_stackframe();
1073 struct policy_handle connect_handle = { .handle_type = 0 };
1074 struct policy_handle domain_handle = { .handle_type = 0 };
1075 struct dom_sid domain_sid = *machine_sid;
1076 uint32_t machine_rid;
1077 NTSTATUS result = NT_STATUS_OK;
1078 NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
1079 bool ok;
1080
1081 ok = sid_split_rid(&domain_sid, &machine_rid);
1082 if (!ok) {
1083 goto out;
1084 }
1085
1086 status = dcerpc_samr_Connect2(
1087 b,
1088 frame,
1089 lp_netbios_name(),
1090 SAMR_ACCESS_CONNECT_TO_SERVER |
1091 SAMR_ACCESS_ENUM_DOMAINS |
1092 SAMR_ACCESS_LOOKUP_DOMAIN,
1093 &connect_handle,
1094 &result);
1095 if (any_nt_status_not_ok(status, result, &status)) {
1096 goto out;
1097 }
1098
1099 status = dcerpc_samr_OpenDomain(
1100 b,
1101 frame,
1102 &connect_handle,
1103 SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
1104 &domain_sid,
1105 &domain_handle,
1106 &result);
1107 if (any_nt_status_not_ok(status, result, &status)) {
1108 goto out;
1109 }
1110
1111 status = dcerpc_samr_OpenUser(
1112 b,
1113 frame,
1114 &domain_handle,
1115 SEC_FLAG_MAXIMUM_ALLOWED,
1116 machine_rid,
1117 machine_handle,
1118 &result);
1119 if (any_nt_status_not_ok(status, result, &status)) {
1120 goto out;
1121 }
1122
1123 out:
1124 if ((b != NULL) && is_valid_policy_hnd(&domain_handle)) {
1125 dcerpc_samr_Close(b, frame, &domain_handle, &result);
1126 }
1127 if ((b != NULL) && is_valid_policy_hnd(&connect_handle)) {
1128 dcerpc_samr_Close(b, frame, &connect_handle, &result);
1129 }
1130 TALLOC_FREE(frame);
1131 return status;
1132 }
1133
1134 struct _samr_Credentials_t {
1135 enum {
1136 CRED_TYPE_NT_HASH,
1137 CRED_TYPE_PLAIN_TEXT,
1138 } cred_type;
1139 union {
1140 struct samr_Password *nt_hash;
1141 const char *password;
1142 } creds;
1143 };
1144
1145
1146 static NTSTATUS netr_set_machine_account_password(
1147 TALLOC_CTX *mem_ctx,
1148 struct auth_session_info *session_info,
1149 struct messaging_context *msg_ctx,
1150 const struct dom_sid *machine_sid,
1151 struct _samr_Credentials_t *cr)
1152 {
1153 NTSTATUS status;
1154 NTSTATUS result = NT_STATUS_OK;
1155 struct dcerpc_binding_handle *h = NULL;
1156 struct tsocket_address *local;
1157 struct policy_handle user_handle = { .handle_type = 0 };
1158 uint32_t acct_ctrl;
1159 union samr_UserInfo *info;
1160 struct samr_UserInfo18 info18;
1161 struct samr_UserInfo26 info26;
1162 DATA_BLOB in,out;
1163 int rc;
1164 DATA_BLOB session_key;
1165 enum samr_UserInfoLevel infolevel;
1166 TALLOC_CTX *frame = talloc_stackframe();
1167
1168 status = session_extract_session_key(session_info,
1169 &session_key,
1170 KEY_USE_16BYTES);
1171 if (!NT_STATUS_IS_OK(status)) {
1172 goto out;
1173 }
1174
1175 rc = tsocket_address_inet_from_strings(frame,
1176 "ip",
1177 "127.0.0.1",
1178 0,
1179 &local);
1180 if (rc < 0) {
1181 status = NT_STATUS_NO_MEMORY;
1182 goto out;
1183 }
1184
1185 status = rpcint_binding_handle(frame,
1186 &ndr_table_samr,
1187 local,
1188 NULL,
1189 get_session_info_system(),
1190 msg_ctx,
1191 &h);
1192 if (!NT_STATUS_IS_OK(status)) {
1193 goto out;
1194 }
1195
1196 status = samr_open_machine_account(
1197 h, machine_sid, SEC_FLAG_MAXIMUM_ALLOWED, &user_handle);
1198 if (!NT_STATUS_IS_OK(status)) {
1199 goto out;
1200 }
1201
1202 status = dcerpc_samr_QueryUserInfo2(h,
1203 frame,
1204 &user_handle,
1205 UserControlInformation,
1206 &info,
1207 &result);
1208 if (any_nt_status_not_ok(status, result, &status)) {
1209 goto out;
1210 }
1211
1212 acct_ctrl = info->info16.acct_flags;
1213
1214 if (!(acct_ctrl & ACB_WSTRUST ||
1215 acct_ctrl & ACB_SVRTRUST ||
1216 acct_ctrl & ACB_DOMTRUST)) {
1217 status = NT_STATUS_NO_SUCH_USER;
1218 goto out;
1219 }
1220
1221 if (acct_ctrl & ACB_DISABLED) {
1222 status = NT_STATUS_ACCOUNT_DISABLED;
1223 goto out;
1224 }
1225
1226 switch(cr->cred_type) {
1227 case CRED_TYPE_NT_HASH:
1228 ZERO_STRUCT(info18);
1229
1230 infolevel = UserInternal1Information;
1231
1232 in = data_blob_const(cr->creds.nt_hash, 16);
1233 out = data_blob_talloc_zero(frame, 16);
1234 if (out.data == NULL) {
1235 status = NT_STATUS_NO_MEMORY;
1236 goto out;
1237 }
1238 rc = sess_crypt_blob(&out, &in, &session_key, SAMBA_GNUTLS_ENCRYPT);
1239 if (rc != 0) {
1240 status = gnutls_error_to_ntstatus(rc,
1241 NT_STATUS_ACCESS_DISABLED_BY_POLICY_OTHER);
1242 goto out;
1243 }
1244 memcpy(info18.nt_pwd.hash, out.data, out.length);
1245
1246 info18.nt_pwd_active = true;
1247
1248 info->info18 = info18;
1249 break;
1250 case CRED_TYPE_PLAIN_TEXT:
1251 ZERO_STRUCT(info26);
1252
1253 infolevel = UserInternal5InformationNew;
1254
1255 status = init_samr_CryptPasswordEx(cr->creds.password,
1256 &session_key,
1257 &info26.password);
1258 if (!NT_STATUS_IS_OK(status)) {
1259 goto out;
1260 }
1261
1262 info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1263 info->info26 = info26;
1264 break;
1265 default:
1266 status = NT_STATUS_INTERNAL_ERROR;
1267 goto out;
1268 break;
1269 }
1270
1271 status = dcerpc_samr_SetUserInfo2(h,
1272 frame,
1273 &user_handle,
1274 infolevel,
1275 info,
1276 &result);
1277 if (any_nt_status_not_ok(status, result, &status)) {
1278 goto out;
1279 }
1280
1281 out:
1282 if (h && is_valid_policy_hnd(&user_handle)) {
1283 dcerpc_samr_Close(h, frame, &user_handle, &result);
1284 }
1285 TALLOC_FREE(frame);
1286
1287 return status;
1288 }
1289
1290 /*************************************************************************
1291 _netr_ServerPasswordSet
1292 *************************************************************************/
1293
1294 NTSTATUS _netr_ServerPasswordSet(struct pipes_struct *p,
1295 struct netr_ServerPasswordSet *r)
1296 {
1297 struct dcesrv_call_state *dce_call = p->dce_call;
1298 struct auth_session_info *session_info =
1299 dcesrv_call_session_info(dce_call);
1300 NTSTATUS status = NT_STATUS_OK;
1301 size_t i;
1302 struct netlogon_creds_CredentialState *creds = NULL;
1303 struct _samr_Credentials_t cr = { CRED_TYPE_NT_HASH, {0}};
1304
1305 DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__));
1306
1307 become_root();
1308 status = dcesrv_netr_creds_server_step_check(p->dce_call,
1309 p->mem_ctx,
1310 r->in.computer_name,
1311 r->in.credential,
1312 r->out.return_authenticator,
1313 &creds);
1314 unbecome_root();
1315
1316 if (!NT_STATUS_IS_OK(status)) {
1317 const char *computer_name = "<unknown>";
1318
1319 if (creds != NULL && creds->computer_name != NULL) {
1320 computer_name = creds->computer_name;
1321 }
1322 DEBUG(2,("_netr_ServerPasswordSet: netlogon_creds_server_step failed. Rejecting auth "
1323 "request from client %s machine account %s\n",
1324 r->in.computer_name, computer_name));
1325 TALLOC_FREE(creds);
1326 return status;
1327 }
1328
1329 DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n",
1330 r->in.computer_name, creds->computer_name));
1331
1332 status = netlogon_creds_des_decrypt(creds, r->in.new_password);
1333 if (!NT_STATUS_IS_OK(status)) {
1334 return status;
1335 }
1336
1337 DEBUG(100,("_netr_ServerPasswordSet: new given value was :\n"));
1338 for(i = 0; i < sizeof(r->in.new_password->hash); i++)
1339 DEBUG(100,("%02X ", r->in.new_password->hash[i]));
1340 DEBUG(100,("\n"));
1341
1342 cr.creds.nt_hash = r->in.new_password;
1343 status = netr_set_machine_account_password(p->mem_ctx,
1344 session_info,
1345 p->msg_ctx,
1346 creds->sid,
1347 &cr);
1348 return status;
1349 }
1350
1351 /****************************************************************
1352 _netr_ServerPasswordSet2
1353 ****************************************************************/
1354
1355 NTSTATUS _netr_ServerPasswordSet2(struct pipes_struct *p,
1356 struct netr_ServerPasswordSet2 *r)
1357 {
1358 struct dcesrv_call_state *dce_call = p->dce_call;
1359 struct auth_session_info *session_info =
1360 dcesrv_call_session_info(dce_call);
1361 NTSTATUS status;
1362 struct netlogon_creds_CredentialState *creds = NULL;
1363 DATA_BLOB plaintext = data_blob_null;
1364 DATA_BLOB new_password = data_blob_null;
1365 size_t confounder_len;
1366 DATA_BLOB dec_blob = data_blob_null;
1367 DATA_BLOB enc_blob = data_blob_null;
1368 struct samr_CryptPassword password_buf;
1369 struct _samr_Credentials_t cr = { CRED_TYPE_PLAIN_TEXT, {0}};
1370 bool ok;
1371
1372 become_root();
1373 status = dcesrv_netr_creds_server_step_check(p->dce_call,
1374 p->mem_ctx,
1375 r->in.computer_name,
1376 r->in.credential,
1377 r->out.return_authenticator,
1378 &creds);
1379 unbecome_root();
1380
1381 if (!NT_STATUS_IS_OK(status)) {
1382 DBG_NOTICE("netlogon_creds_server_step failed. "
1383 "Rejecting auth request from client %s\n",
1384 r->in.computer_name);
1385 TALLOC_FREE(creds);
1386 return status;
1387 }
1388
1389 DBG_NOTICE("Server Password Set2 by remote "
1390 "machine:[%s] on account [%s]\n",
1391 r->in.computer_name,
1392 creds->computer_name != NULL ?
1393 creds->computer_name : "<unknown>");
1394
1395 memcpy(password_buf.data, r->in.new_password->data, 512);
1396 SIVAL(password_buf.data, 512, r->in.new_password->length);
1397
1398 if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
1399 status = netlogon_creds_aes_decrypt(creds,
1400 password_buf.data,
1401 516);
1402 } else {
1403 status = netlogon_creds_arcfour_crypt(creds,
1404 password_buf.data,
1405 516);
1406 }
1407 if (!NT_STATUS_IS_OK(status)) {
1408 TALLOC_FREE(creds);
1409 return status;
1410 }
1411
1412 if (!extract_pw_from_buffer(p->mem_ctx, password_buf.data, &new_password)) {
1413 DEBUG(2,("_netr_ServerPasswordSet2: unable to extract password "
1414 "from a buffer. Rejecting auth request as a wrong password\n"));
1415 TALLOC_FREE(creds);
1416 return NT_STATUS_WRONG_PASSWORD;
1417 }
1418
1419 /*
1420 * Make sure the length field was encrypted,
1421 * otherwise we are under attack.
1422 */
1423 if (new_password.length == r->in.new_password->length) {
1424 DBG_WARNING("Length[%zu] field not encrypted\n",
1425 new_password.length);
1426 TALLOC_FREE(creds);
1427 return NT_STATUS_WRONG_PASSWORD;
1428 }
1429
1430 /*
1431 * We don't allow empty passwords for machine accounts.
1432 */
1433 if (new_password.length < 2) {
1434 DBG_WARNING("Empty password Length[%zu]\n",
1435 new_password.length);
1436 TALLOC_FREE(creds);
1437 return NT_STATUS_WRONG_PASSWORD;
1438 }
1439
1440 /*
1441 * Make sure the confounder part of CryptPassword
1442 * buffer was encrypted, otherwise we are under attack.
1443 */
1444 confounder_len = 512 - new_password.length;
1445 enc_blob = data_blob_const(r->in.new_password->data, confounder_len);
1446 dec_blob = data_blob_const(password_buf.data, confounder_len);
1447 if (confounder_len > 0 && data_blob_equal_const_time(&dec_blob, &enc_blob)) {
1448 DBG_WARNING("Confounder buffer not encrypted Length[%zu]\n",
1449 confounder_len);
1450 TALLOC_FREE(creds);
1451 return NT_STATUS_WRONG_PASSWORD;
1452 }
1453
1454 /*
1455 * Check that the password part was actually encrypted,
1456 * otherwise we are under attack.
1457 */
1458 enc_blob = data_blob_const(r->in.new_password->data + confounder_len,
1459 new_password.length);
1460 dec_blob = data_blob_const(password_buf.data + confounder_len,
1461 new_password.length);
1462 if (data_blob_equal_const_time(&dec_blob, &enc_blob)) {
1463 DBG_WARNING("Password buffer not encrypted Length[%zu]\n",
1464 new_password.length);
1465 TALLOC_FREE(creds);
1466 return NT_STATUS_WRONG_PASSWORD;
1467 }
1468
1469 /*
1470 * don't allow zero buffers
1471 */
1472 if (all_zero(new_password.data, new_password.length)) {
1473 DBG_WARNING("Password zero buffer Length[%zu]\n",
1474 new_password.length);
1475 TALLOC_FREE(creds);
1476 return NT_STATUS_WRONG_PASSWORD;
1477 }
1478
1479 /* Convert from UTF16 -> plaintext. */
1480 ok = convert_string_talloc(p->mem_ctx,
1481 CH_UTF16,
1482 CH_UNIX,
1483 new_password.data,
1484 new_password.length,
1485 &plaintext.data,
1486 &plaintext.length);
1487 if (!ok) {
1488 DBG_WARNING("unable to extract password from a buffer. "
1489 "Rejecting auth request as a wrong password\n");
1490 TALLOC_FREE(creds);
1491 return NT_STATUS_WRONG_PASSWORD;
1492 }
1493
1494 /*
1495 * We don't allow empty passwords for machine accounts.
1496 */
1497
1498 cr.creds.password = (const char*) plaintext.data;
1499 if (strlen(cr.creds.password) == 0) {
1500 DBG_WARNING("Empty plaintext password\n");
1501 TALLOC_FREE(creds);
1502 return NT_STATUS_WRONG_PASSWORD;
1503 }
1504
1505 status = netr_set_machine_account_password(p->mem_ctx,
1506 session_info,
1507 p->msg_ctx,
1508 creds->sid,
1509 &cr);
1510 TALLOC_FREE(creds);
1511 return status;
1512 }
1513
1514 /*************************************************************************
1515 _netr_LogonSamLogoff
1516 *************************************************************************/
1517
1518 NTSTATUS _netr_LogonSamLogoff(struct pipes_struct *p,
1519 struct netr_LogonSamLogoff *r)
1520 {
1521 NTSTATUS status;
1522 struct netlogon_creds_CredentialState *creds;
1523
1524 become_root();
1525 status = dcesrv_netr_creds_server_step_check(p->dce_call,
1526 p->mem_ctx,
1527 r->in.computer_name,
1528 r->in.credential,
1529 r->out.return_authenticator,
1530 &creds);
1531 unbecome_root();
1532
1533 return status;
1534 }
1535
1536 static NTSTATUS _netr_LogonSamLogon_check(const struct netr_LogonSamLogonEx *r)
1537 {
1538 switch (r->in.logon_level) {
1539 case NetlogonInteractiveInformation:
1540 case NetlogonServiceInformation:
1541 case NetlogonInteractiveTransitiveInformation:
1542 case NetlogonServiceTransitiveInformation:
1543 if (r->in.logon->password == NULL) {
1544 return NT_STATUS_INVALID_PARAMETER;
1545 }
1546
1547 switch (r->in.validation_level) {
1548 case NetlogonValidationSamInfo: /* 2 */
1549 case NetlogonValidationSamInfo2: /* 3 */
1550 break;
1551 case NetlogonValidationSamInfo4: /* 6 */
1552 if ((pdb_capabilities() & PDB_CAP_ADS) == 0) {
1553 DEBUG(10,("Not adding validation info level 6 "
1554 "without ADS passdb backend\n"));
1555 return NT_STATUS_INVALID_INFO_CLASS;
1556 }
1557 break;
1558 default:
1559 return NT_STATUS_INVALID_INFO_CLASS;
1560 }
1561
1562 break;
1563 case NetlogonNetworkInformation:
1564 case NetlogonNetworkTransitiveInformation:
1565 if (r->in.logon->network == NULL) {
1566 return NT_STATUS_INVALID_PARAMETER;
1567 }
1568
1569 switch (r->in.validation_level) {
1570 case NetlogonValidationSamInfo: /* 2 */
1571 case NetlogonValidationSamInfo2: /* 3 */
1572 break;
1573 case NetlogonValidationSamInfo4: /* 6 */
1574 if ((pdb_capabilities() & PDB_CAP_ADS) == 0) {
1575 DEBUG(10,("Not adding validation info level 6 "
1576 "without ADS passdb backend\n"));
1577 return NT_STATUS_INVALID_INFO_CLASS;
1578 }
1579 break;
1580 default:
1581 return NT_STATUS_INVALID_INFO_CLASS;
1582 }
1583
1584 break;
1585
1586 case NetlogonGenericInformation:
1587 if (r->in.logon->generic == NULL) {
1588 return NT_STATUS_INVALID_PARAMETER;
1589 }
1590
1591 /* we don't support this here */
1592 return NT_STATUS_INVALID_PARAMETER;
1593 #if 0
1594 switch (r->in.validation_level) {
1595 /* TODO: case NetlogonValidationGenericInfo: 4 */
1596 case NetlogonValidationGenericInfo2: /* 5 */
1597 break;
1598 default:
1599 return NT_STATUS_INVALID_INFO_CLASS;
1600 }
1601
1602 break;
1603 #endif
1604 default:
1605 return NT_STATUS_INVALID_PARAMETER;
1606 }
1607
1608 return NT_STATUS_OK;
1609 }
1610
1611 /*************************************************************************
1612 _netr_LogonSamLogon_base
1613 *************************************************************************/
1614
1615 static NTSTATUS _netr_LogonSamLogon_base(struct pipes_struct *p,
1616 struct netr_LogonSamLogonEx *r,
1617 struct netlogon_creds_CredentialState *creds)
1618 {
1619 struct dcesrv_call_state *dce_call = p->dce_call;
1620 struct dcesrv_connection *dcesrv_conn = dce_call->conn;
1621 const struct tsocket_address *local_address =
1622 dcesrv_connection_get_local_address(dcesrv_conn);
1623 const struct tsocket_address *remote_address =
1624 dcesrv_connection_get_remote_address(dcesrv_conn);
1625 NTSTATUS status = NT_STATUS_OK;
1626 union netr_LogonLevel *logon = r->in.logon;
1627 const char *nt_username, *nt_domain, *nt_workstation;
1628 char *sanitized_username = NULL;
1629 struct auth_usersupplied_info *user_info = NULL;
1630 struct auth_serversupplied_info *server_info = NULL;
1631 struct auth_context *auth_context = NULL;
1632 const char *fn;
1633 enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
1634 enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
1635 uint16_t opnum = dce_call->pkt.u.request.opnum;
1636
1637 dcesrv_call_auth_info(dce_call, &auth_type, &auth_level);
1638
1639 #ifdef DEBUG_PASSWORD
1640 logon = netlogon_creds_shallow_copy_logon(p->mem_ctx,
1641 r->in.logon_level,
1642 r->in.logon);
1643 if (logon == NULL) {
1644 logon = r->in.logon;
1645 }
1646 #endif
1647
1648 switch (opnum) {
1649 case NDR_NETR_LOGONSAMLOGON:
1650 fn = "_netr_LogonSamLogon";
1651 /*
1652 * Already called netr_check_schannel() via
1653 * netr_creds_server_step_check()
1654 */
1655 break;
1656 case NDR_NETR_LOGONSAMLOGONWITHFLAGS:
1657 fn = "_netr_LogonSamLogonWithFlags";
1658 /*
1659 * Already called netr_check_schannel() via
1660 * netr_creds_server_step_check()
1661 */
1662 break;
1663 case NDR_NETR_LOGONSAMLOGONEX:
1664 fn = "_netr_LogonSamLogonEx";
1665
1666 if (auth_type != DCERPC_AUTH_TYPE_SCHANNEL) {
1667 return NT_STATUS_ACCESS_DENIED;
1668 }
1669
1670 status = dcesrv_netr_check_schannel(p->dce_call,
1671 creds,
1672 auth_type,
1673 auth_level,
1674 opnum);
1675 if (NT_STATUS_IS_ERR(status)) {
1676 return status;
1677 }
1678
1679 break;
1680 default:
1681 return NT_STATUS_INTERNAL_ERROR;
1682 }
1683
1684 *r->out.authoritative = 1; /* authoritative response */
1685
1686 switch (r->in.validation_level) {
1687 case 2:
1688 r->out.validation->sam2 = talloc_zero(p->mem_ctx, struct netr_SamInfo2);
1689 if (!r->out.validation->sam2) {
1690 return NT_STATUS_NO_MEMORY;
1691 }
1692 break;
1693 case 3:
1694 r->out.validation->sam3 = talloc_zero(p->mem_ctx, struct netr_SamInfo3);
1695 if (!r->out.validation->sam3) {
1696 return NT_STATUS_NO_MEMORY;
1697 }
1698 break;
1699 case 6:
1700 r->out.validation->sam6 = talloc_zero(p->mem_ctx, struct netr_SamInfo6);
1701 if (!r->out.validation->sam6) {
1702 return NT_STATUS_NO_MEMORY;
1703 }
1704 break;
1705 default:
1706 DEBUG(0,("%s: bad validation_level value %d.\n",
1707 fn, (int)r->in.validation_level));
1708 return NT_STATUS_INVALID_INFO_CLASS;
1709 }
1710
1711 switch (r->in.logon_level) {
1712 case NetlogonInteractiveInformation:
1713 case NetlogonServiceInformation:
1714 case NetlogonInteractiveTransitiveInformation:
1715 case NetlogonServiceTransitiveInformation:
1716 nt_username = logon->password->identity_info.account_name.string ?
1717 logon->password->identity_info.account_name.string : "";
1718 nt_domain = logon->password->identity_info.domain_name.string ?
1719 logon->password->identity_info.domain_name.string : "";
1720 nt_workstation = logon->password->identity_info.workstation.string ?
1721 logon->password->identity_info.workstation.string : "";
1722
1723 DEBUG(3,("SAM Logon (Interactive). Domain:[%s]. ", lp_workgroup()));
1724 break;
1725 case NetlogonNetworkInformation:
1726 case NetlogonNetworkTransitiveInformation:
1727 nt_username = logon->network->identity_info.account_name.string ?
1728 logon->network->identity_info.account_name.string : "";
1729 nt_domain = logon->network->identity_info.domain_name.string ?
1730 logon->network->identity_info.domain_name.string : "";
1731 nt_workstation = logon->network->identity_info.workstation.string ?
1732 logon->network->identity_info.workstation.string : "";
1733
1734 DEBUG(3,("SAM Logon (Network). Domain:[%s]. ", lp_workgroup()));
1735 break;
1736 default:
1737 DEBUG(2,("SAM Logon: unsupported switch value\n"));
1738 return NT_STATUS_INVALID_INFO_CLASS;
1739 } /* end switch */
1740
1741 DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username, nt_workstation, nt_domain));
1742
1743 DEBUG(5,("Attempting validation level %d for unmapped username %s.\n",
1744 r->in.validation_level, nt_username));
1745
1746 status = netlogon_creds_decrypt_samlogon_logon(creds,
1747 r->in.logon_level,
1748 logon);
1749 if (!NT_STATUS_IS_OK(status)) {
1750 return status;
1751 }
1752
1753 status = make_auth3_context_for_netlogon(talloc_tos(), &auth_context);
1754 if (!NT_STATUS_IS_OK(status)) {
1755 return status;
1756 }
1757
1758 switch (r->in.logon_level) {
1759 case NetlogonNetworkInformation:
1760 case NetlogonNetworkTransitiveInformation:
1761 {
1762 const char *wksname = nt_workstation;
1763 const char *workgroup = lp_workgroup();
1764 bool ok;
1765
1766 ok = auth3_context_set_challenge(
1767 auth_context, logon->network->challenge, "fixed");
1768 if (!ok) {
1769 return NT_STATUS_NO_MEMORY;
1770 }
1771
1772 /* For a network logon, the workstation name comes in with two
1773 * backslashes in the front. Strip them if they are there. */
1774
1775 if (*wksname == '\\') wksname++;
1776 if (*wksname == '\\') wksname++;
1777
1778 /* Standard challenge/response authentication */
1779 if (!make_user_info_netlogon_network(talloc_tos(),
1780 &user_info,
1781 nt_username, nt_domain,
1782 wksname,
1783 remote_address,
1784 local_address,
1785 logon->network->identity_info.parameter_control,
1786 logon->network->lm.data,
1787 logon->network->lm.length,
1788 logon->network->nt.data,
1789 logon->network->nt.length)) {
1790 status = NT_STATUS_NO_MEMORY;
1791 }
1792
1793 if (NT_STATUS_IS_OK(status)) {
1794 status = NTLMv2_RESPONSE_verify_netlogon_creds(
1795 user_info->client.account_name,
1796 user_info->client.domain_name,
1797 user_info->password.response.nt,
1798 creds, workgroup);
1799 }
1800 break;
1801 }
1802 case NetlogonInteractiveInformation:
1803 case NetlogonServiceInformation:
1804 case NetlogonInteractiveTransitiveInformation:
1805 case NetlogonServiceTransitiveInformation:
1806
1807 /* 'Interactive' authentication, supplies the password in its
1808 MD4 form, encrypted with the session key. We will convert
1809 this to challenge/response for the auth subsystem to chew
1810 on */
1811 {
1812 uint8_t chal[8];
1813
1814 #ifdef DEBUG_PASSWORD
1815 if (logon != r->in.logon) {
1816 DEBUG(100,("lm owf password:"));
1817 dump_data(100,
1818 r->in.logon->password->lmpassword.hash, 16);
1819
1820 DEBUG(100,("nt owf password:"));
1821 dump_data(100,
1822 r->in.logon->password->ntpassword.hash, 16);
1823 }
1824
1825 DEBUG(100,("decrypt of lm owf password:"));
1826 dump_data(100, logon->password->lmpassword.hash, 16);
1827
1828 DEBUG(100,("decrypt of nt owf password:"));
1829 dump_data(100, logon->password->ntpassword.hash, 16);
1830 #endif
1831
1832 auth_get_ntlm_challenge(auth_context, chal);
1833
1834 if (!make_user_info_netlogon_interactive(talloc_tos(),
1835 &user_info,
1836 nt_username, nt_domain,
1837 nt_workstation,
1838 remote_address,
1839 local_address,
1840 logon->password->identity_info.parameter_control,
1841 chal,
1842 logon->password->lmpassword.hash,
1843 logon->password->ntpassword.hash)) {
1844 status = NT_STATUS_NO_MEMORY;
1845 }
1846 break;
1847 }
1848 default:
1849 DEBUG(2,("SAM Logon: unsupported switch value\n"));
1850 return NT_STATUS_INVALID_INFO_CLASS;
1851 } /* end switch */
1852
1853 if ( NT_STATUS_IS_OK(status) ) {
1854 status = auth_check_ntlm_password(p->mem_ctx,
1855 auth_context,
1856 user_info,
1857 &server_info,
1858 r->out.authoritative);
1859 }
1860
1861 TALLOC_FREE(auth_context);
1862 TALLOC_FREE(user_info);
1863
1864 DEBUG(5,("%s: check_password returned status %s\n",
1865 fn, nt_errstr(status)));
1866
1867 /* Check account and password */
1868
1869 if (!NT_STATUS_IS_OK(status)) {
1870 TALLOC_FREE(server_info);
1871 return status;
1872 }
1873
1874 if (server_info->guest) {
1875 /* We don't like guest domain logons... */
1876 DEBUG(5,("%s: Attempted domain logon as GUEST "
1877 "denied.\n", fn));
1878 TALLOC_FREE(server_info);
1879 return NT_STATUS_LOGON_FAILURE;
1880 }
1881
1882 sanitized_username = talloc_alpha_strcpy(talloc_tos(),
1883 nt_username,
1884 SAFE_NETBIOS_CHARS "$");
1885 if (sanitized_username == NULL) {
1886 TALLOC_FREE(server_info);
1887 return NT_STATUS_NO_MEMORY;
1888 }
1889
1890 set_current_user_info(sanitized_username,
1891 server_info->unix_name,
1892 server_info->info3->base.logon_domain.string);
1893 TALLOC_FREE(sanitized_username);
1894
1895 /* This is the point at which, if the login was successful, that
1896 the SAM Local Security Authority should record that the user is
1897 logged in to the domain. */
1898
1899 switch (r->in.validation_level) {
1900 case 2:
1901 status = serverinfo_to_SamInfo2(server_info,
1902 r->out.validation->sam2);
1903 break;
1904 case 3:
1905 status = serverinfo_to_SamInfo3(server_info,
1906 r->out.validation->sam3);
1907 break;
1908 case 6: {
1909 /* Only allow this if the pipe is protected. */
1910 if (auth_level < DCERPC_AUTH_LEVEL_PRIVACY) {
1911 DEBUG(0,("netr_Validation6: client %s not using privacy for netlogon\n",
1912 get_remote_machine_name()));
1913 status = NT_STATUS_INVALID_PARAMETER;
1914 break;
1915 }
1916
1917 status = serverinfo_to_SamInfo6(server_info,
1918 r->out.validation->sam6);
1919 break;
1920 }
1921 }
1922
1923 TALLOC_FREE(server_info);
1924
1925 if (!NT_STATUS_IS_OK(status)) {
1926 return status;
1927 }
1928
1929 status = netlogon_creds_encrypt_samlogon_validation(creds,
1930 r->in.validation_level,
1931 r->out.validation);
1932
1933 return status;
1934 }
1935
1936 /****************************************************************
1937 _netr_LogonSamLogonWithFlags
1938 ****************************************************************/
1939
1940 NTSTATUS _netr_LogonSamLogonWithFlags(struct pipes_struct *p,
1941 struct netr_LogonSamLogonWithFlags *r)
1942 {
1943 NTSTATUS status;
1944 struct netlogon_creds_CredentialState *creds;
1945 struct netr_LogonSamLogonEx r2;
1946 struct netr_Authenticator return_authenticator;
1947
1948 *r->out.authoritative = true;
1949
1950 r2.in.server_name = r->in.server_name;
1951 r2.in.computer_name = r->in.computer_name;
1952 r2.in.logon_level = r->in.logon_level;
1953 r2.in.logon = r->in.logon;
1954 r2.in.validation_level = r->in.validation_level;
1955 r2.in.flags = r->in.flags;
1956 r2.out.validation = r->out.validation;
1957 r2.out.authoritative = r->out.authoritative;
1958 r2.out.flags = r->out.flags;
1959
1960 status = _netr_LogonSamLogon_check(&r2);
1961 if (!NT_STATUS_IS_OK(status)) {
1962 return status;
1963 }
1964
1965 become_root();
1966 status = dcesrv_netr_creds_server_step_check(p->dce_call,
1967 p->mem_ctx,
1968 r->in.computer_name,
1969 r->in.credential,
1970 &return_authenticator,
1971 &creds);
1972 unbecome_root();
1973 if (!NT_STATUS_IS_OK(status)) {
1974 return status;
1975 }
1976
1977 status = _netr_LogonSamLogon_base(p, &r2, creds);
1978
1979 *r->out.return_authenticator = return_authenticator;
1980
1981 return status;
1982 }
1983
1984 /*************************************************************************
1985 _netr_LogonSamLogon
1986 *************************************************************************/
1987
1988 NTSTATUS _netr_LogonSamLogon(struct pipes_struct *p,
1989 struct netr_LogonSamLogon *r)
1990 {
1991 NTSTATUS status;
1992 struct netr_LogonSamLogonWithFlags r2;
1993 uint32_t flags = 0;
1994
1995 r2.in.server_name = r->in.server_name;
1996 r2.in.computer_name = r->in.computer_name;
1997 r2.in.credential = r->in.credential;
1998 r2.in.logon_level = r->in.logon_level;
1999 r2.in.logon = r->in.logon;
2000 r2.in.validation_level = r->in.validation_level;
2001 r2.in.return_authenticator = r->in.return_authenticator;
2002 r2.in.flags = &flags;
2003 r2.out.validation = r->out.validation;
2004 r2.out.authoritative = r->out.authoritative;
2005 r2.out.flags = &flags;
2006 r2.out.return_authenticator = r->out.return_authenticator;
2007
2008 status = _netr_LogonSamLogonWithFlags(p, &r2);
2009
2010 return status;
2011 }
2012
2013 /*************************************************************************
2014 _netr_LogonSamLogonEx
2015 - no credential chaining. Map into net sam logon.
2016 *************************************************************************/
2017
2018 NTSTATUS _netr_LogonSamLogonEx(struct pipes_struct *p,
2019 struct netr_LogonSamLogonEx *r)
2020 {
2021 NTSTATUS status;
2022 struct netlogon_creds_CredentialState *creds = NULL;
2023 struct loadparm_context *lp_ctx = p->dce_call->conn->dce_ctx->lp_ctx;
2024
2025 *r->out.authoritative = true;
2026
2027 status = _netr_LogonSamLogon_check(r);
2028 if (!NT_STATUS_IS_OK(status)) {
2029 return status;
2030 }
2031
2032 become_root();
2033 status = schannel_get_creds_state(p->mem_ctx, lp_ctx,
2034 r->in.computer_name, &creds);
2035 unbecome_root();
2036 if (!NT_STATUS_IS_OK(status)) {
2037 return status;
2038 }
2039
2040 status = _netr_LogonSamLogon_base(p, r, creds);
2041 TALLOC_FREE(creds);
2042
2043 return status;
2044 }
2045
2046 /*************************************************************************
2047 _ds_enum_dom_trusts
2048 *************************************************************************/
2049 #if 0 /* JERRY -- not correct */
2050 NTSTATUS _ds_enum_dom_trusts(struct pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u,
2051 DS_R_ENUM_DOM_TRUSTS *r_u)
2052 {
2053 NTSTATUS status = NT_STATUS_OK;
2054
2055 /* TODO: According to MSDN, the can only be executed against a
2056 DC or domain member running Windows 2000 or later. Need
2057 to test against a standalone 2k server and see what it
2058 does. A windows 2000 DC includes its own domain in the
2059 list. --jerry */
2060
2061 return status;
2062 }
2063 #endif /* JERRY */
2064
2065
2066 /****************************************************************
2067 ****************************************************************/
2068
2069 WERROR _netr_LogonUasLogon(struct pipes_struct *p,
2070 struct netr_LogonUasLogon *r)
2071 {
2072 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2073 return WERR_NOT_SUPPORTED;
2074 }
2075
2076 /****************************************************************
2077 ****************************************************************/
2078
2079 WERROR _netr_LogonUasLogoff(struct pipes_struct *p,
2080 struct netr_LogonUasLogoff *r)
2081 {
2082 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2083 return WERR_NOT_SUPPORTED;
2084 }
2085
2086 /****************************************************************
2087 ****************************************************************/
2088
2089 NTSTATUS _netr_DatabaseDeltas(struct pipes_struct *p,
2090 struct netr_DatabaseDeltas *r)
2091 {
2092 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2093 return NT_STATUS_NOT_IMPLEMENTED;
2094 }
2095
2096 /****************************************************************
2097 ****************************************************************/
2098
2099 NTSTATUS _netr_DatabaseSync(struct pipes_struct *p,
2100 struct netr_DatabaseSync *r)
2101 {
2102 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2103 return NT_STATUS_NOT_IMPLEMENTED;
2104 }
2105
2106 /****************************************************************
2107 ****************************************************************/
2108
2109 NTSTATUS _netr_AccountDeltas(struct pipes_struct *p,
2110 struct netr_AccountDeltas *r)
2111 {
2112 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2113 return NT_STATUS_NOT_IMPLEMENTED;
2114 }
2115
2116 /****************************************************************
2117 ****************************************************************/
2118
2119 NTSTATUS _netr_AccountSync(struct pipes_struct *p,
2120 struct netr_AccountSync *r)
2121 {
2122 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2123 return NT_STATUS_NOT_IMPLEMENTED;
2124 }
2125
2126 /****************************************************************
2127 ****************************************************************/
2128
2129 static bool wb_getdcname(TALLOC_CTX *mem_ctx,
2130 const char *domain,
2131 const char **dcname,
2132 uint32_t flags,
2133 WERROR *werr)
2134 {
2135 wbcErr result;
2136 struct wbcDomainControllerInfo *dc_info = NULL;
2137
2138 result = wbcLookupDomainController(domain,
2139 flags,
2140 &dc_info);
2141 switch (result) {
2142 case WBC_ERR_SUCCESS:
2143 break;
2144 case WBC_ERR_WINBIND_NOT_AVAILABLE:
2145 return false;
2146 case WBC_ERR_DOMAIN_NOT_FOUND:
2147 *werr = WERR_NO_SUCH_DOMAIN;
2148 return true;
2149 default:
2150 *werr = WERR_DOMAIN_CONTROLLER_NOT_FOUND;
2151 return true;
2152 }
2153
2154 *dcname = talloc_strdup(mem_ctx, dc_info->dc_name);
2155 wbcFreeMemory(dc_info);
2156 if (!*dcname) {
2157 *werr = WERR_NOT_ENOUGH_MEMORY;
2158 return false;
2159 }
2160
2161 *werr = WERR_OK;
2162
2163 return true;
2164 }
2165
2166 /****************************************************************
2167 _netr_GetDcName
2168 ****************************************************************/
2169
2170 WERROR _netr_GetDcName(struct pipes_struct *p,
2171 struct netr_GetDcName *r)
2172 {
2173 NTSTATUS status;
2174 WERROR werr;
2175 uint32_t flags;
2176 struct netr_DsRGetDCNameInfo *info;
2177 bool ret;
2178
2179 ret = wb_getdcname(p->mem_ctx,
2180 r->in.domainname,
2181 r->out.dcname,
2182 WBC_LOOKUP_DC_IS_FLAT_NAME |
2183 WBC_LOOKUP_DC_RETURN_FLAT_NAME |
2184 WBC_LOOKUP_DC_PDC_REQUIRED,
2185 &werr);
2186 if (ret == true) {
2187 return werr;
2188 }
2189
2190 flags = DS_PDC_REQUIRED | DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
2191
2192 status = dsgetdcname(p->mem_ctx,
2193 p->msg_ctx,
2194 r->in.domainname,
2195 NULL,
2196 NULL,
2197 flags,
2198 &info);
2199 if (!NT_STATUS_IS_OK(status)) {
2200 return ntstatus_to_werror(status);
2201 }
2202
2203 *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
2204 talloc_free(info);
2205 if (!*r->out.dcname) {
2206 return WERR_NOT_ENOUGH_MEMORY;
2207 }
2208
2209 return WERR_OK;
2210 }
2211
2212 /****************************************************************
2213 _netr_GetAnyDCName
2214 ****************************************************************/
2215
2216 WERROR _netr_GetAnyDCName(struct pipes_struct *p,
2217 struct netr_GetAnyDCName *r)
2218 {
2219 NTSTATUS status;
2220 WERROR werr;
2221 uint32_t flags;
2222 struct netr_DsRGetDCNameInfo *info;
2223 bool ret;
2224
2225 ret = wb_getdcname(p->mem_ctx,
2226 r->in.domainname,
2227 r->out.dcname,
2228 WBC_LOOKUP_DC_IS_FLAT_NAME |
2229 WBC_LOOKUP_DC_RETURN_FLAT_NAME,
2230 &werr);
2231 if (ret == true) {
2232 return werr;
2233 }
2234
2235 flags = DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
2236
2237 status = dsgetdcname(p->mem_ctx,
2238 p->msg_ctx,
2239 r->in.domainname,
2240 NULL,
2241 NULL,
2242 flags,
2243 &info);
2244 if (!NT_STATUS_IS_OK(status)) {
2245 return ntstatus_to_werror(status);
2246 }
2247
2248 *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
2249 talloc_free(info);
2250 if (!*r->out.dcname) {
2251 return WERR_NOT_ENOUGH_MEMORY;
2252 }
2253
2254 return WERR_OK;
2255 }
2256
2257 /****************************************************************
2258 ****************************************************************/
2259
2260 NTSTATUS _netr_DatabaseSync2(struct pipes_struct *p,
2261 struct netr_DatabaseSync2 *r)
2262 {
2263 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2264 return NT_STATUS_NOT_IMPLEMENTED;
2265 }
2266
2267 /****************************************************************
2268 ****************************************************************/
2269
2270 NTSTATUS _netr_DatabaseRedo(struct pipes_struct *p,
2271 struct netr_DatabaseRedo *r)
2272 {
2273 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2274 return NT_STATUS_NOT_IMPLEMENTED;
2275 }
2276
2277 /****************************************************************
2278 ****************************************************************/
2279
2280 WERROR _netr_DsRGetDCName(struct pipes_struct *p,
2281 struct netr_DsRGetDCName *r)
2282 {
2283 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2284 return WERR_NOT_SUPPORTED;
2285 }
2286
2287 /****************************************************************
2288 ****************************************************************/
2289
2290 NTSTATUS _netr_LogonGetCapabilities(struct pipes_struct *p,
2291 struct netr_LogonGetCapabilities *r)
2292 {
2293 struct netlogon_creds_CredentialState *creds;
2294 NTSTATUS status;
2295
2296 switch (r->in.query_level) {
2297 case 1:
2298 break;
2299 case 2:
2300 /*
2301 * Until we know the details behind KB5028166
2302 * just return DCERPC_NCA_S_FAULT_INVALID_TAG
2303 * like an unpatched Windows Server.
2304 */
2305 FALL_THROUGH;
2306 default:
2307 /*
2308 * There would not be a way to marshall the
2309 * the response. Which would mean our final
2310 * ndr_push would fail an we would return
2311 * an RPC-level fault with DCERPC_FAULT_BAD_STUB_DATA.
2312 *
2313 * But it's important to match a Windows server
2314 * especially before KB5028166, see also our bug #15418
2315 * Otherwise Windows client would stop talking to us.
2316 */
2317 p->fault_state = DCERPC_NCA_S_FAULT_INVALID_TAG;
2318 return NT_STATUS_NOT_SUPPORTED;
2319 }
2320
2321 become_root();
2322 status = dcesrv_netr_creds_server_step_check(p->dce_call,
2323 p->mem_ctx,
2324 r->in.computer_name,
2325 r->in.credential,
2326 r->out.return_authenticator,
2327 &creds);
2328 unbecome_root();
2329 if (!NT_STATUS_IS_OK(status)) {
2330 return status;
2331 }
2332
2333 r->out.capabilities->server_capabilities = creds->negotiate_flags;
2334
2335 return NT_STATUS_OK;
2336 }
2337
2338 /****************************************************************
2339 ****************************************************************/
2340
2341 WERROR _netr_NETRLOGONSETSERVICEBITS(struct pipes_struct *p,
2342 struct netr_NETRLOGONSETSERVICEBITS *r)
2343 {
2344 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2345 return WERR_NOT_SUPPORTED;
2346 }
2347
2348 /****************************************************************
2349 ****************************************************************/
2350
2351 WERROR _netr_LogonGetTrustRid(struct pipes_struct *p,
2352 struct netr_LogonGetTrustRid *r)
2353 {
2354 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2355 return WERR_NOT_SUPPORTED;
2356 }
2357
2358 /****************************************************************
2359 ****************************************************************/
2360
2361 WERROR _netr_NETRLOGONCOMPUTESERVERDIGEST(struct pipes_struct *p,
2362 struct netr_NETRLOGONCOMPUTESERVERDIGEST *r)
2363 {
2364 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2365 return WERR_NOT_SUPPORTED;
2366 }
2367
2368 /****************************************************************
2369 ****************************************************************/
2370
2371 WERROR _netr_NETRLOGONCOMPUTECLIENTDIGEST(struct pipes_struct *p,
2372 struct netr_NETRLOGONCOMPUTECLIENTDIGEST *r)
2373 {
2374 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2375 return WERR_NOT_SUPPORTED;
2376 }
2377
2378 /****************************************************************
2379 ****************************************************************/
2380
2381 WERROR _netr_DsRGetDCNameEx(struct pipes_struct *p,
2382 struct netr_DsRGetDCNameEx *r)
2383 {
2384 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2385 return WERR_NOT_SUPPORTED;
2386 }
2387
2388 /****************************************************************
2389 ****************************************************************/
2390
2391 WERROR _netr_DsRGetSiteName(struct pipes_struct *p,
2392 struct netr_DsRGetSiteName *r)
2393 {
2394 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2395 return WERR_NOT_SUPPORTED;
2396 }
2397
2398 /****************************************************************
2399 ****************************************************************/
2400
2401 NTSTATUS _netr_LogonGetDomainInfo(struct pipes_struct *p,
2402 struct netr_LogonGetDomainInfo *r)
2403 {
2404 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2405 return NT_STATUS_NOT_IMPLEMENTED;
2406 }
2407
2408 /****************************************************************
2409 ****************************************************************/
2410
2411 NTSTATUS _netr_ServerPasswordGet(struct pipes_struct *p,
2412 struct netr_ServerPasswordGet *r)
2413 {
2414 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2415 return NT_STATUS_NOT_SUPPORTED;
2416 }
2417
2418 /****************************************************************
2419 ****************************************************************/
2420
2421 NTSTATUS _netr_NetrLogonSendToSam(struct pipes_struct *p,
2422 struct netr_NetrLogonSendToSam *r)
2423 {
2424 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2425 return NT_STATUS_NOT_IMPLEMENTED;
2426 }
2427
2428 /****************************************************************
2429 ****************************************************************/
2430
2431 WERROR _netr_DsRAddressToSitenamesW(struct pipes_struct *p,
2432 struct netr_DsRAddressToSitenamesW *r)
2433 {
2434 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2435 return WERR_NOT_SUPPORTED;
2436 }
2437
2438 /****************************************************************
2439 ****************************************************************/
2440
2441 WERROR _netr_DsRGetDCNameEx2(struct pipes_struct *p,
2442 struct netr_DsRGetDCNameEx2 *r)
2443 {
2444 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2445 return WERR_NOT_SUPPORTED;
2446 }
2447
2448 /****************************************************************
2449 ****************************************************************/
2450
2451 WERROR _netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN(struct pipes_struct *p,
2452 struct netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN *r)
2453 {
2454 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2455 return WERR_NOT_SUPPORTED;
2456 }
2457
2458 /****************************************************************
2459 ****************************************************************/
2460
2461 WERROR _netr_NetrEnumerateTrustedDomainsEx(struct pipes_struct *p,
2462 struct netr_NetrEnumerateTrustedDomainsEx *r)
2463 {
2464 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2465 return WERR_NOT_SUPPORTED;
2466 }
2467
2468 /****************************************************************
2469 ****************************************************************/
2470
2471 WERROR _netr_DsRAddressToSitenamesExW(struct pipes_struct *p,
2472 struct netr_DsRAddressToSitenamesExW *r)
2473 {
2474 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2475 return WERR_NOT_SUPPORTED;
2476 }
2477
2478 /****************************************************************
2479 ****************************************************************/
2480
2481 WERROR _netr_DsrGetDcSiteCoverageW(struct pipes_struct *p,
2482 struct netr_DsrGetDcSiteCoverageW *r)
2483 {
2484 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2485 return WERR_NOT_SUPPORTED;
2486 }
2487
2488 /****************************************************************
2489 ****************************************************************/
2490
2491 WERROR _netr_DsrEnumerateDomainTrusts(struct pipes_struct *p,
2492 struct netr_DsrEnumerateDomainTrusts *r)
2493 {
2494 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2495 return WERR_NOT_SUPPORTED;
2496 }
2497
2498 /****************************************************************
2499 ****************************************************************/
2500
2501 WERROR _netr_DsrDeregisterDNSHostRecords(struct pipes_struct *p,
2502 struct netr_DsrDeregisterDNSHostRecords *r)
2503 {
2504 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2505 return WERR_NOT_SUPPORTED;
2506 }
2507
2508 /****************************************************************
2509 ****************************************************************/
2510
2511 NTSTATUS _netr_ServerTrustPasswordsGet(struct pipes_struct *p,
2512 struct netr_ServerTrustPasswordsGet *r)
2513 {
2514 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2515 return NT_STATUS_NOT_IMPLEMENTED;
2516 }
2517
2518 /****************************************************************
2519 ****************************************************************/
2520
2521 static NTSTATUS fill_forest_trust_array(TALLOC_CTX *mem_ctx,
2522 struct lsa_ForestTrustInformation *info)
2523 {
2524 struct lsa_ForestTrustRecord *e;
2525 struct pdb_domain_info *dom_info;
2526 struct lsa_ForestTrustDomainInfo *domain_info;
2527 char **upn_suffixes = NULL;
2528 uint32_t num_suffixes = 0;
2529 uint32_t i = 0;
2530 NTSTATUS status;
2531
2532 dom_info = pdb_get_domain_info(mem_ctx);
2533 if (dom_info == NULL) {
2534 return NT_STATUS_NO_MEMORY;
2535 }
2536
2537 info->count = 2;
2538
2539 become_root();
2540 status = pdb_enum_upn_suffixes(info, &num_suffixes, &upn_suffixes);
2541 unbecome_root();
2542 if (NT_STATUS_IS_OK(status) && (num_suffixes > 0)) {
2543 info->count += num_suffixes;
2544 }
2545
2546 info->entries = talloc_array(info, struct lsa_ForestTrustRecord *, info->count);
2547 if (info->entries == NULL) {
2548 return NT_STATUS_NO_MEMORY;
2549 }
2550
2551 e = talloc(info, struct lsa_ForestTrustRecord);
2552 if (e == NULL) {
2553 return NT_STATUS_NO_MEMORY;
2554 }
2555
2556 e->flags = 0;
2557 e->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME;
2558 e->time = 0; /* so far always 0 in trces. */
2559 e->forest_trust_data.top_level_name.string = talloc_steal(info,
2560 dom_info->dns_forest);
2561
2562 info->entries[0] = e;
2563
2564 if (num_suffixes > 0) {
2565 for (i = 0; i < num_suffixes ; i++) {
2566 e = talloc(info, struct lsa_ForestTrustRecord);
2567 if (e == NULL) {
2568 return NT_STATUS_NO_MEMORY;
2569 }
2570
2571 e->flags = 0;
2572 e->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME;
2573 e->time = 0; /* so far always 0 in traces. */
2574 e->forest_trust_data.top_level_name.string = upn_suffixes[i];
2575 info->entries[1 + i] = e;
2576 }
2577 }
2578
2579 e = talloc(info, struct lsa_ForestTrustRecord);
2580 if (e == NULL) {
2581 return NT_STATUS_NO_MEMORY;
2582 }
2583
2584 /* TODO: check if disabled and set flags accordingly */
2585 e->flags = 0;
2586 e->type = LSA_FOREST_TRUST_DOMAIN_INFO;
2587 e->time = 0; /* so far always 0 in traces. */
2588
2589 domain_info = &e->forest_trust_data.domain_info;
2590 domain_info->domain_sid = dom_sid_dup(info, &dom_info->sid);
2591
2592 domain_info->dns_domain_name.string = talloc_steal(info,
2593 dom_info->dns_domain);
2594 domain_info->netbios_domain_name.string = talloc_steal(info,
2595 dom_info->name);
2596
2597 info->entries[info->count - 1] = e;
2598
2599 return NT_STATUS_OK;
2600 }
2601
2602 /****************************************************************
2603 ****************************************************************/
2604
2605 WERROR _netr_DsRGetForestTrustInformation(struct pipes_struct *p,
2606 struct netr_DsRGetForestTrustInformation *r)
2607 {
2608 struct dcesrv_call_state *dce_call = p->dce_call;
2609 struct auth_session_info *session_info =
2610 dcesrv_call_session_info(dce_call);
2611 NTSTATUS status;
2612 struct lsa_ForestTrustInformation *info, **info_ptr;
2613 enum security_user_level security_level;
2614
2615 security_level = security_session_user_level(session_info, NULL);
2616 if (security_level < SECURITY_USER) {
2617 return WERR_ACCESS_DENIED;
2618 }
2619
2620 if (r->in.flags & (~DS_GFTI_UPDATE_TDO)) {
2621 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2622 return WERR_INVALID_FLAGS;
2623 }
2624
2625 if ((r->in.flags & DS_GFTI_UPDATE_TDO) && (lp_server_role() != ROLE_DOMAIN_PDC)) {
2626 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2627 return WERR_NERR_NOTPRIMARY;
2628 }
2629
2630 if ((r->in.trusted_domain_name == NULL) && (r->in.flags & DS_GFTI_UPDATE_TDO)) {
2631 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2632 return WERR_INVALID_PARAMETER;
2633 }
2634
2635 /* retrieve forest trust information and stop further processing */
2636 if (r->in.trusted_domain_name == NULL) {
2637 info_ptr = talloc(p->mem_ctx, struct lsa_ForestTrustInformation *);
2638 if (info_ptr == NULL) {
2639 p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2640 return WERR_NOT_ENOUGH_MEMORY;
2641 }
2642 info = talloc_zero(info_ptr, struct lsa_ForestTrustInformation);
2643 if (info == NULL) {
2644 p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2645 return WERR_NOT_ENOUGH_MEMORY;
2646 }
2647
2648 /* Fill forest trust information and expand UPN suffixes list */
2649 status = fill_forest_trust_array(p->mem_ctx, info);
2650 if (!NT_STATUS_IS_OK(status)) {
2651 p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2652 return WERR_NOT_ENOUGH_MEMORY;
2653 }
2654
2655 *info_ptr = info;
2656 r->out.forest_trust_info = info_ptr;
2657
2658 return WERR_OK;
2659
2660 }
2661
2662 /* TODO: implement remaining parts of DsrGetForestTrustInformation (opnum 43)
2663 * when trusted_domain_name is not NULL */
2664
2665 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2666 return WERR_NOT_SUPPORTED;
2667 }
2668
2669 /****************************************************************
2670 _netr_GetForestTrustInformation
2671 ****************************************************************/
2672
2673 NTSTATUS _netr_GetForestTrustInformation(struct pipes_struct *p,
2674 struct netr_GetForestTrustInformation *r)
2675 {
2676 NTSTATUS status;
2677 struct netlogon_creds_CredentialState *creds;
2678 struct lsa_ForestTrustInformation *info, **info_ptr;
2679
2680 /* TODO: check server name */
2681
2682 become_root();
2683 status = dcesrv_netr_creds_server_step_check(p->dce_call,
2684 p->mem_ctx,
2685 r->in.computer_name,
2686 r->in.credential,
2687 r->out.return_authenticator,
2688 &creds);
2689 unbecome_root();
2690 if (!NT_STATUS_IS_OK(status)) {
2691 return status;
2692 }
2693
2694 if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) &&
2695 (creds->secure_channel_type != SEC_CHAN_DOMAIN)) {
2696 return NT_STATUS_NOT_IMPLEMENTED;
2697 }
2698
2699 info_ptr = talloc(p->mem_ctx, struct lsa_ForestTrustInformation *);
2700 if (!info_ptr) {
2701 return NT_STATUS_NO_MEMORY;
2702 }
2703 info = talloc_zero(info_ptr, struct lsa_ForestTrustInformation);
2704 if (!info) {
2705 return NT_STATUS_NO_MEMORY;
2706 }
2707
2708 /* Fill forest trust information, do expand UPN suffixes list */
2709 status = fill_forest_trust_array(p->mem_ctx, info);
2710 if (!NT_STATUS_IS_OK(status)) {
2711 return status;
2712 }
2713
2714 *info_ptr = info;
2715 r->out.forest_trust_info = info_ptr;
2716
2717 return NT_STATUS_OK;
2718 }
2719
2720 /****************************************************************
2721 ****************************************************************/
2722
2723 static NTSTATUS get_password_from_trustAuth(TALLOC_CTX *mem_ctx,
2724 const DATA_BLOB *trustAuth_blob,
2725 struct netlogon_creds_CredentialState *creds,
2726 struct samr_Password *current_pw_enc,
2727 struct samr_Password *previous_pw_enc)
2728 {
2729 enum ndr_err_code ndr_err;
2730 struct trustAuthInOutBlob trustAuth;
2731 NTSTATUS status;
2732
2733 ndr_err = ndr_pull_struct_blob_all(trustAuth_blob, mem_ctx, &trustAuth,
2734 (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2735 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2736 return NT_STATUS_UNSUCCESSFUL;
2737 }
2738
2739 if (trustAuth.count != 0 && trustAuth.current.count != 0 &&
2740 trustAuth.current.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) {
2741 mdfour(current_pw_enc->hash,
2742 trustAuth.current.array[0].AuthInfo.clear.password,
2743 trustAuth.current.array[0].AuthInfo.clear.size);
2744 status = netlogon_creds_des_encrypt(creds, current_pw_enc);
2745 if (!NT_STATUS_IS_OK(status)) {
2746 return status;
2747 }
2748 } else {
2749 return NT_STATUS_UNSUCCESSFUL;
2750 }
2751
2752
2753 if (trustAuth.previous.count != 0 &&
2754 trustAuth.previous.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) {
2755 mdfour(previous_pw_enc->hash,
2756 trustAuth.previous.array[0].AuthInfo.clear.password,
2757 trustAuth.previous.array[0].AuthInfo.clear.size);
2758 status = netlogon_creds_des_encrypt(creds, previous_pw_enc);
2759 if (!NT_STATUS_IS_OK(status)) {
2760 return status;
2761 }
2762 } else {
2763 ZERO_STRUCTP(previous_pw_enc);
2764 }
2765
2766 return NT_STATUS_OK;
2767 }
2768
2769 /****************************************************************
2770 _netr_ServerGetTrustInfo
2771 ****************************************************************/
2772
2773 NTSTATUS _netr_ServerGetTrustInfo(struct pipes_struct *p,
2774 struct netr_ServerGetTrustInfo *r)
2775 {
2776 NTSTATUS status;
2777 struct netlogon_creds_CredentialState *creds;
2778 char *account_name;
2779 size_t account_name_last;
2780 bool trusted;
2781 struct netr_TrustInfo *trust_info;
2782 struct pdb_trusted_domain *td;
2783
2784 /* TODO: check server name */
2785
2786 become_root();
2787 status = dcesrv_netr_creds_server_step_check(p->dce_call,
2788 p->mem_ctx,
2789 r->in.computer_name,
2790 r->in.credential,
2791 r->out.return_authenticator,
2792 &creds);
2793 unbecome_root();
2794 if (!NT_STATUS_IS_OK(status)) {
2795 return status;
2796 }
2797
2798 account_name = talloc_strdup(p->mem_ctx, r->in.account_name);
2799 if (account_name == NULL) {
2800 return NT_STATUS_NO_MEMORY;
2801 }
2802
2803 account_name_last = strlen(account_name);
2804 if (account_name_last == 0) {
2805 return NT_STATUS_INVALID_PARAMETER;
2806 }
2807 account_name_last--;
2808 if (account_name[account_name_last] == '.') {
2809 account_name[account_name_last] = '\0';
2810 }
2811
2812 if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) &&
2813 (creds->secure_channel_type != SEC_CHAN_DOMAIN)) {
2814 trusted = false;
2815 } else {
2816 trusted = true;
2817 }
2818
2819
2820 if (trusted) {
2821 account_name_last = strlen(account_name);
2822 if (account_name_last == 0) {
2823 return NT_STATUS_INVALID_PARAMETER;
2824 }
2825 account_name_last--;
2826 if (account_name[account_name_last] == '$') {
2827 account_name[account_name_last] = '\0';
2828 }
2829
2830 status = pdb_get_trusted_domain(p->mem_ctx, account_name, &td);
2831 if (!NT_STATUS_IS_OK(status)) {
2832 return status;
2833 }
2834
2835 if (r->out.trust_info != NULL) {
2836 trust_info = talloc_zero(p->mem_ctx, struct netr_TrustInfo);
2837 if (trust_info == NULL) {
2838 return NT_STATUS_NO_MEMORY;
2839 }
2840 trust_info->count = 1;
2841
2842 trust_info->data = talloc_array(trust_info, uint32_t, 1);
2843 if (trust_info->data == NULL) {
2844 return NT_STATUS_NO_MEMORY;
2845 }
2846 trust_info->data[0] = td->trust_attributes;
2847
2848 *r->out.trust_info = trust_info;
2849 }
2850
2851 if (td->trust_auth_incoming.data == NULL) {
2852 return NT_STATUS_INVALID_PARAMETER;
2853 }
2854
2855 status = get_password_from_trustAuth(p->mem_ctx,
2856 &td->trust_auth_incoming,
2857 creds,
2858 r->out.new_owf_password,
2859 r->out.old_owf_password);
2860
2861 if (!NT_STATUS_IS_OK(status)) {
2862 return status;
2863 }
2864
2865 } else {
2866 /* TODO: look for machine password */
2867 ZERO_STRUCTP(r->out.new_owf_password);
2868 ZERO_STRUCTP(r->out.old_owf_password);
2869
2870 return NT_STATUS_NOT_IMPLEMENTED;
2871 }
2872
2873 return NT_STATUS_OK;
2874 }
2875
2876 /****************************************************************
2877 ****************************************************************/
2878
2879 NTSTATUS _netr_Unused47(struct pipes_struct *p,
2880 struct netr_Unused47 *r)
2881 {
2882 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2883 return NT_STATUS_NOT_IMPLEMENTED;
2884 }
2885
2886 /****************************************************************
2887 ****************************************************************/
2888
2889 NTSTATUS _netr_DsrUpdateReadOnlyServerDnsRecords(struct pipes_struct *p,
2890 struct netr_DsrUpdateReadOnlyServerDnsRecords *r)
2891 {
2892 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2893 return NT_STATUS_NOT_IMPLEMENTED;
2894 }
2895
2896 /*
2897 * Define the bind function that will be used by ndr_netlogon_scompat.c,
2898 * included at the bottom of this file.
2899 */
2900 #define DCESRV_INTERFACE_NETLOGON_BIND(context, iface) \
2901 dcesrv_interface_netlogon_bind(context, iface)
2902
2903 static NTSTATUS dcesrv_interface_netlogon_bind(struct dcesrv_connection_context *context,
2904 const struct dcesrv_interface *iface)
2905 {
2906 struct loadparm_context *lp_ctx = context->conn->dce_ctx->lp_ctx;
2907 int schannel = lpcfg_server_schannel(lp_ctx);
2908 bool schannel_global_required = (schannel == true);
2909 bool global_require_seal = lpcfg_server_schannel_require_seal(lp_ctx);
2910 static bool warned_global_schannel_once = false;
2911 static bool warned_global_seal_once = false;
2912
2913 if (!schannel_global_required && !warned_global_schannel_once) {
2914 /*
2915 * We want admins to notice their misconfiguration!
2916 */
2917 D_ERR("CVE-2020-1472(ZeroLogon): "
2918 "Please configure 'server schannel = yes' (the default), "
2919 "See https://bugzilla.samba.org/show_bug.cgi?id=14497\n");
2920 warned_global_schannel_once = true;
2921 }
2922
2923 if (!global_require_seal && !warned_global_seal_once) {
2924 /*
2925 * We want admins to notice their misconfiguration!
2926 */
2927 D_ERR("CVE-2022-38023 (and others): "
2928 "Please configure 'server schannel require seal = yes' (the default), "
2929 "See https://bugzilla.samba.org/show_bug.cgi?id=15240\n");
2930 warned_global_seal_once = true;
2931 }
2932
2933 return NT_STATUS_OK;
2934 }
2935
2936 /* include the generated boilerplate */
2937 #include "librpc/gen_ndr/ndr_netlogon_scompat.c"
Samba GIT mirror