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s3-netlogon: Make sure we do not deference a NULL pointer.
[Samba.git] / source3 / rpc_server / netlogon / srv_netlog_nt.c
blob701d2997e2138e5a1c8f71be05148867f8362bc7
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/gen_ndr/srv_netlogon.h"
32 #include "../librpc/gen_ndr/ndr_samr_c.h"
33 #include "../librpc/gen_ndr/ndr_lsa_c.h"
34 #include "rpc_client/cli_lsarpc.h"
35 #include "rpc_client/init_lsa.h"
36 #include "rpc_server/rpc_ncacn_np.h"
37 #include "../libcli/security/security.h"
38 #include "../libcli/security/dom_sid.h"
39 #include "librpc/gen_ndr/ndr_drsblobs.h"
40 #include "lib/crypto/arcfour.h"
41 #include "lib/crypto/md4.h"
42 #include "nsswitch/libwbclient/wbclient.h"
43 #include "../libcli/registry/util_reg.h"
44 #include "passdb.h"
45 #include "auth.h"
46 #include "messages.h"
47 #include "../lib/tsocket/tsocket.h"
48 #include "lib/param/param.h"
49
50 extern userdom_struct current_user_info;
51
52 #undef DBGC_CLASS
53 #define DBGC_CLASS DBGC_RPC_SRV
54
55 struct netlogon_server_pipe_state {
56 struct netr_Credential client_challenge;
57 struct netr_Credential server_challenge;
58 };
59
60 /*************************************************************************
61 _netr_LogonControl
62 *************************************************************************/
63
64 WERROR _netr_LogonControl(struct pipes_struct *p,
65 struct netr_LogonControl *r)
66 {
67 struct netr_LogonControl2Ex l;
68
69 switch (r->in.level) {
70 case 1:
71 break;
72 case 2:
73 return WERR_NOT_SUPPORTED;
74 default:
75 return WERR_UNKNOWN_LEVEL;
76 }
77
78 l.in.logon_server = r->in.logon_server;
79 l.in.function_code = r->in.function_code;
80 l.in.level = r->in.level;
81 l.in.data = NULL;
82 l.out.query = r->out.query;
83
84 return _netr_LogonControl2Ex(p, &l);
85 }
86
87 /*************************************************************************
88 _netr_LogonControl2
89 *************************************************************************/
90
91 WERROR _netr_LogonControl2(struct pipes_struct *p,
92 struct netr_LogonControl2 *r)
93 {
94 struct netr_LogonControl2Ex l;
95
96 l.in.logon_server = r->in.logon_server;
97 l.in.function_code = r->in.function_code;
98 l.in.level = r->in.level;
99 l.in.data = r->in.data;
100 l.out.query = r->out.query;
101
102 return _netr_LogonControl2Ex(p, &l);
103 }
104
105 /*************************************************************************
106 *************************************************************************/
107
108 static bool wb_change_trust_creds(const char *domain, WERROR *tc_status)
109 {
110 wbcErr result;
111 struct wbcAuthErrorInfo *error = NULL;
112
113 result = wbcChangeTrustCredentials(domain, &error);
114 switch (result) {
115 case WBC_ERR_WINBIND_NOT_AVAILABLE:
116 return false;
117 case WBC_ERR_DOMAIN_NOT_FOUND:
118 *tc_status = WERR_NO_SUCH_DOMAIN;
119 return true;
120 case WBC_ERR_SUCCESS:
121 *tc_status = WERR_OK;
122 return true;
123 default:
124 break;
125 }
126
127 if (error && error->nt_status != 0) {
128 *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status));
129 } else {
130 *tc_status = WERR_TRUST_FAILURE;
131 }
132 wbcFreeMemory(error);
133 return true;
134 }
135
136 /*************************************************************************
137 *************************************************************************/
138
139 static bool wb_check_trust_creds(const char *domain, WERROR *tc_status)
140 {
141 wbcErr result;
142 struct wbcAuthErrorInfo *error = NULL;
143
144 result = wbcCheckTrustCredentials(domain, &error);
145 switch (result) {
146 case WBC_ERR_WINBIND_NOT_AVAILABLE:
147 return false;
148 case WBC_ERR_DOMAIN_NOT_FOUND:
149 *tc_status = WERR_NO_SUCH_DOMAIN;
150 return true;
151 case WBC_ERR_SUCCESS:
152 *tc_status = WERR_OK;
153 return true;
154 default:
155 break;
156 }
157
158 if (error && error->nt_status != 0) {
159 *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status));
160 } else {
161 *tc_status = WERR_TRUST_FAILURE;
162 }
163 wbcFreeMemory(error);
164 return true;
165 }
166
167 /****************************************************************
168 _netr_LogonControl2Ex
169 ****************************************************************/
170
171 WERROR _netr_LogonControl2Ex(struct pipes_struct *p,
172 struct netr_LogonControl2Ex *r)
173 {
174 uint32_t flags = 0x0;
175 WERROR pdc_connection_status = WERR_OK;
176 uint32_t logon_attempts = 0x0;
177 WERROR tc_status;
178 fstring dc_name2;
179 const char *dc_name = NULL;
180 struct sockaddr_storage dc_ss;
181 const char *domain = NULL;
182 struct netr_NETLOGON_INFO_1 *info1;
183 struct netr_NETLOGON_INFO_2 *info2;
184 struct netr_NETLOGON_INFO_3 *info3;
185 struct netr_NETLOGON_INFO_4 *info4;
186 const char *fn;
187 uint32_t acct_ctrl;
188 NTSTATUS status;
189 struct netr_DsRGetDCNameInfo *dc_info;
190
191 switch (p->opnum) {
192 case NDR_NETR_LOGONCONTROL:
193 fn = "_netr_LogonControl";
194 break;
195 case NDR_NETR_LOGONCONTROL2:
196 fn = "_netr_LogonControl2";
197 break;
198 case NDR_NETR_LOGONCONTROL2EX:
199 fn = "_netr_LogonControl2Ex";
200 break;
201 default:
202 return WERR_INVALID_PARAM;
203 }
204
205 acct_ctrl = p->session_info->info->acct_flags;
206
207 switch (r->in.function_code) {
208 case NETLOGON_CONTROL_TC_VERIFY:
209 case NETLOGON_CONTROL_CHANGE_PASSWORD:
210 case NETLOGON_CONTROL_REDISCOVER:
211 if ((geteuid() != sec_initial_uid()) &&
212 !nt_token_check_domain_rid(p->session_info->security_token, DOMAIN_RID_ADMINS) &&
213 !nt_token_check_sid(&global_sid_Builtin_Administrators, p->session_info->security_token) &&
214 !(acct_ctrl & (ACB_WSTRUST | ACB_SVRTRUST))) {
215 return WERR_ACCESS_DENIED;
216 }
217 break;
218 default:
219 break;
220 }
221
222 tc_status = WERR_NO_SUCH_DOMAIN;
223
224 switch (r->in.function_code) {
225 case NETLOGON_CONTROL_QUERY:
226 tc_status = WERR_OK;
227 break;
228 case NETLOGON_CONTROL_REPLICATE:
229 case NETLOGON_CONTROL_SYNCHRONIZE:
230 case NETLOGON_CONTROL_PDC_REPLICATE:
231 case NETLOGON_CONTROL_BACKUP_CHANGE_LOG:
232 case NETLOGON_CONTROL_BREAKPOINT:
233 if (acct_ctrl & ACB_NORMAL) {
234 return WERR_NOT_SUPPORTED;
235 } else if (acct_ctrl & (ACB_WSTRUST | ACB_SVRTRUST)) {
236 return WERR_ACCESS_DENIED;
237 } else {
238 return WERR_ACCESS_DENIED;
239 }
240 case NETLOGON_CONTROL_TRUNCATE_LOG:
241 if (acct_ctrl & ACB_NORMAL) {
242 break;
243 } else if (acct_ctrl & (ACB_WSTRUST | ACB_SVRTRUST)) {
244 return WERR_ACCESS_DENIED;
245 } else {
246 return WERR_ACCESS_DENIED;
247 }
248
249 case NETLOGON_CONTROL_TRANSPORT_NOTIFY:
250 case NETLOGON_CONTROL_FORCE_DNS_REG:
251 case NETLOGON_CONTROL_QUERY_DNS_REG:
252 return WERR_NOT_SUPPORTED;
253 case NETLOGON_CONTROL_FIND_USER:
254 if (!r->in.data || !r->in.data->user) {
255 return WERR_NOT_SUPPORTED;
256 }
257 break;
258 case NETLOGON_CONTROL_SET_DBFLAG:
259 if (!r->in.data) {
260 return WERR_NOT_SUPPORTED;
261 }
262 break;
263 case NETLOGON_CONTROL_TC_VERIFY:
264 if (!r->in.data || !r->in.data->domain) {
265 return WERR_NOT_SUPPORTED;
266 }
267
268 if (!wb_check_trust_creds(r->in.data->domain, &tc_status)) {
269 return WERR_NOT_SUPPORTED;
270 }
271 break;
272 case NETLOGON_CONTROL_TC_QUERY:
273 if (!r->in.data || !r->in.data->domain) {
274 return WERR_NOT_SUPPORTED;
275 }
276
277 domain = r->in.data->domain;
278
279 if (!is_trusted_domain(domain)) {
280 break;
281 }
282
283 if (!get_dc_name(domain, NULL, dc_name2, &dc_ss)) {
284 tc_status = WERR_NO_LOGON_SERVERS;
285 break;
286 }
287
288 dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2);
289 if (!dc_name) {
290 return WERR_NOMEM;
291 }
292
293 tc_status = WERR_OK;
294
295 break;
296
297 case NETLOGON_CONTROL_REDISCOVER:
298 if (!r->in.data || !r->in.data->domain) {
299 return WERR_NOT_SUPPORTED;
300 }
301
302 domain = r->in.data->domain;
303
304 if (!is_trusted_domain(domain)) {
305 break;
306 }
307
308 status = dsgetdcname(p->mem_ctx, p->msg_ctx, domain, NULL, NULL,
309 DS_FORCE_REDISCOVERY | DS_RETURN_FLAT_NAME,
310 &dc_info);
311 if (!NT_STATUS_IS_OK(status)) {
312 tc_status = WERR_NO_LOGON_SERVERS;
313 break;
314 }
315
316 dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_info->dc_unc);
317 if (!dc_name) {
318 return WERR_NOMEM;
319 }
320
321 tc_status = WERR_OK;
322
323 break;
324
325 case NETLOGON_CONTROL_CHANGE_PASSWORD:
326 if (!r->in.data || !r->in.data->domain) {
327 return WERR_NOT_SUPPORTED;
328 }
329
330 if (!wb_change_trust_creds(r->in.data->domain, &tc_status)) {
331 return WERR_NOT_SUPPORTED;
332 }
333 break;
334
335 default:
336 /* no idea what this should be */
337 DEBUG(0,("%s: unimplemented function level [%d]\n",
338 fn, r->in.function_code));
339 return WERR_UNKNOWN_LEVEL;
340 }
341
342 /* prepare the response */
343
344 switch (r->in.level) {
345 case 1:
346 info1 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_1);
347 W_ERROR_HAVE_NO_MEMORY(info1);
348
349 info1->flags = flags;
350 info1->pdc_connection_status = pdc_connection_status;
351
352 r->out.query->info1 = info1;
353 break;
354 case 2:
355 info2 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_2);
356 W_ERROR_HAVE_NO_MEMORY(info2);
357
358 info2->flags = flags;
359 info2->pdc_connection_status = pdc_connection_status;
360 info2->trusted_dc_name = dc_name;
361 info2->tc_connection_status = tc_status;
362
363 r->out.query->info2 = info2;
364 break;
365 case 3:
366 info3 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_3);
367 W_ERROR_HAVE_NO_MEMORY(info3);
368
369 info3->flags = flags;
370 info3->logon_attempts = logon_attempts;
371
372 r->out.query->info3 = info3;
373 break;
374 case 4:
375 info4 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_4);
376 W_ERROR_HAVE_NO_MEMORY(info4);
377
378 info4->trusted_dc_name = dc_name;
379 info4->trusted_domain_name = r->in.data->domain;
380
381 r->out.query->info4 = info4;
382 break;
383 default:
384 return WERR_UNKNOWN_LEVEL;
385 }
386
387 return WERR_OK;
388 }
389
390 /*************************************************************************
391 _netr_NetrEnumerateTrustedDomains
392 *************************************************************************/
393
394 NTSTATUS _netr_NetrEnumerateTrustedDomains(struct pipes_struct *p,
395 struct netr_NetrEnumerateTrustedDomains *r)
396 {
397 NTSTATUS status;
398 NTSTATUS result = NT_STATUS_OK;
399 DATA_BLOB blob;
400 int num_domains = 0;
401 const char **trusted_domains = NULL;
402 struct lsa_DomainList domain_list;
403 struct dcerpc_binding_handle *h = NULL;
404 struct policy_handle pol;
405 uint32_t enum_ctx = 0;
406 int i;
407 uint32_t max_size = (uint32_t)-1;
408
409 DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
410
411 status = rpcint_binding_handle(p->mem_ctx,
412 &ndr_table_lsarpc,
413 p->remote_address,
414 p->session_info,
415 p->msg_ctx,
416 &h);
417 if (!NT_STATUS_IS_OK(status)) {
418 return status;
419 }
420
421 status = dcerpc_lsa_open_policy2(h,
422 p->mem_ctx,
423 NULL,
424 true,
425 LSA_POLICY_VIEW_LOCAL_INFORMATION,
426 &pol,
427 &result);
428 if (!NT_STATUS_IS_OK(status)) {
429 goto out;
430 }
431 if (!NT_STATUS_IS_OK(result)) {
432 status = result;
433 goto out;
434 }
435
436 do {
437 /* Lookup list of trusted domains */
438 status = dcerpc_lsa_EnumTrustDom(h,
439 p->mem_ctx,
440 &pol,
441 &enum_ctx,
442 &domain_list,
443 max_size,
444 &result);
445 if (!NT_STATUS_IS_OK(status)) {
446 goto out;
447 }
448 if (!NT_STATUS_IS_OK(result) &&
449 !NT_STATUS_EQUAL(result, NT_STATUS_NO_MORE_ENTRIES) &&
450 !NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) {
451 status = result;
452 goto out;
453 }
454
455 for (i = 0; i < domain_list.count; i++) {
456 if (!add_string_to_array(p->mem_ctx, domain_list.domains[i].name.string,
457 &trusted_domains, &num_domains)) {
458 status = NT_STATUS_NO_MEMORY;
459 goto out;
460 }
461 }
462 } while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES));
463
464 if (num_domains > 0) {
465 /* multi sz terminate */
466 trusted_domains = talloc_realloc(p->mem_ctx, trusted_domains, const char *, num_domains + 1);
467 if (trusted_domains == NULL) {
468 status = NT_STATUS_NO_MEMORY;
469 goto out;
470 }
471
472 trusted_domains[num_domains] = NULL;
473 }
474
475 if (!push_reg_multi_sz(trusted_domains, &blob, trusted_domains)) {
476 TALLOC_FREE(trusted_domains);
477 status = NT_STATUS_NO_MEMORY;
478 goto out;
479 }
480
481 r->out.trusted_domains_blob->data = blob.data;
482 r->out.trusted_domains_blob->length = blob.length;
483
484 DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
485
486 status = NT_STATUS_OK;
487
488 out:
489 if (is_valid_policy_hnd(&pol)) {
490 dcerpc_lsa_Close(h, p->mem_ctx, &pol, &result);
491 }
492
493 return status;
494 }
495
496 /*************************************************************************
497 *************************************************************************/
498
499 static NTSTATUS samr_find_machine_account(TALLOC_CTX *mem_ctx,
500 struct dcerpc_binding_handle *b,
501 const char *account_name,
502 uint32_t access_mask,
503 struct dom_sid2 **domain_sid_p,
504 uint32_t *user_rid_p,
505 struct policy_handle *user_handle)
506 {
507 NTSTATUS status;
508 NTSTATUS result = NT_STATUS_OK;
509 struct policy_handle connect_handle;
510 struct policy_handle domain_handle = { 0, };
511 struct lsa_String domain_name;
512 struct dom_sid2 *domain_sid;
513 struct lsa_String names;
514 struct samr_Ids rids;
515 struct samr_Ids types;
516 uint32_t rid;
517
518 status = dcerpc_samr_Connect2(b, mem_ctx,
519 lp_netbios_name(),
520 SAMR_ACCESS_CONNECT_TO_SERVER |
521 SAMR_ACCESS_ENUM_DOMAINS |
522 SAMR_ACCESS_LOOKUP_DOMAIN,
523 &connect_handle,
524 &result);
525 if (!NT_STATUS_IS_OK(status)) {
526 goto out;
527 }
528 if (!NT_STATUS_IS_OK(result)) {
529 status = result;
530 goto out;
531 }
532
533 init_lsa_String(&domain_name, get_global_sam_name());
534
535 status = dcerpc_samr_LookupDomain(b, mem_ctx,
536 &connect_handle,
537 &domain_name,
538 &domain_sid,
539 &result);
540 if (!NT_STATUS_IS_OK(status)) {
541 goto out;
542 }
543 if (!NT_STATUS_IS_OK(result)) {
544 status = result;
545 goto out;
546 }
547
548 status = dcerpc_samr_OpenDomain(b, mem_ctx,
549 &connect_handle,
550 SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
551 domain_sid,
552 &domain_handle,
553 &result);
554 if (!NT_STATUS_IS_OK(status)) {
555 goto out;
556 }
557 if (!NT_STATUS_IS_OK(result)) {
558 status = result;
559 goto out;
560 }
561
562 init_lsa_String(&names, account_name);
563
564 status = dcerpc_samr_LookupNames(b, mem_ctx,
565 &domain_handle,
566 1,
567 &names,
568 &rids,
569 &types,
570 &result);
571 if (!NT_STATUS_IS_OK(status)) {
572 goto out;
573 }
574 if (!NT_STATUS_IS_OK(result)) {
575 status = result;
576 goto out;
577 }
578
579 if (rids.count != 1) {
580 status = NT_STATUS_NO_SUCH_USER;
581 goto out;
582 }
583 if (types.count != 1) {
584 status = NT_STATUS_INVALID_PARAMETER;
585 goto out;
586 }
587 if (types.ids[0] != SID_NAME_USER) {
588 status = NT_STATUS_NO_SUCH_USER;
589 goto out;
590 }
591
592 rid = rids.ids[0];
593
594 status = dcerpc_samr_OpenUser(b, mem_ctx,
595 &domain_handle,
596 access_mask,
597 rid,
598 user_handle,
599 &result);
600 if (!NT_STATUS_IS_OK(status)) {
601 goto out;
602 }
603 if (!NT_STATUS_IS_OK(result)) {
604 status = result;
605 goto out;
606 }
607
608 if (user_rid_p) {
609 *user_rid_p = rid;
610 }
611
612 if (domain_sid_p) {
613 *domain_sid_p = domain_sid;
614 }
615
616 out:
617 if (is_valid_policy_hnd(&domain_handle)) {
618 dcerpc_samr_Close(b, mem_ctx, &domain_handle, &result);
619 }
620 if (is_valid_policy_hnd(&connect_handle)) {
621 dcerpc_samr_Close(b, mem_ctx, &connect_handle, &result);
622 }
623
624 return status;
625 }
626
627 /******************************************************************
628 gets a machine password entry. checks access rights of the host.
629 ******************************************************************/
630
631 static NTSTATUS get_md4pw(struct samr_Password *md4pw, const char *mach_acct,
632 enum netr_SchannelType sec_chan_type,
633 struct dom_sid *sid,
634 struct messaging_context *msg_ctx)
635 {
636 NTSTATUS status;
637 NTSTATUS result = NT_STATUS_OK;
638 TALLOC_CTX *mem_ctx;
639 struct dcerpc_binding_handle *h = NULL;
640 struct tsocket_address *local;
641 struct policy_handle user_handle;
642 uint32_t user_rid;
643 struct dom_sid *domain_sid;
644 uint32_t acct_ctrl;
645 union samr_UserInfo *info;
646 struct auth_session_info *session_info;
647 int rc;
648
649 #if 0
650
651 /*
652 * Currently this code is redundent as we already have a filter
653 * by hostname list. What this code really needs to do is to
654 * get a hosts allowed/hosts denied list from the SAM database
655 * on a per user basis, and make the access decision there.
656 * I will leave this code here for now as a reminder to implement
657 * this at a later date. JRA.
658 */
659
660 if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(),
661 p->client_id.name,
662 p->client_id.addr)) {
663 DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct));
664 return False;
665 }
666 #endif /* 0 */
667
668 mem_ctx = talloc_stackframe();
669 if (mem_ctx == NULL) {
670 status = NT_STATUS_NO_MEMORY;
671 goto out;
672 }
673
674 status = make_session_info_system(mem_ctx, &session_info);
675 if (!NT_STATUS_IS_OK(status)) {
676 goto out;
677 }
678
679 ZERO_STRUCT(user_handle);
680
681 rc = tsocket_address_inet_from_strings(mem_ctx,
682 "ip",
683 "127.0.0.1",
684 0,
685 &local);
686 if (rc < 0) {
687 status = NT_STATUS_NO_MEMORY;
688 goto out;
689 }
690
691 status = rpcint_binding_handle(mem_ctx,
692 &ndr_table_samr,
693 local,
694 session_info,
695 msg_ctx,
696 &h);
697 if (!NT_STATUS_IS_OK(status)) {
698 goto out;
699 }
700
701 become_root();
702 status = samr_find_machine_account(mem_ctx, h, mach_acct,
703 SEC_FLAG_MAXIMUM_ALLOWED,
704 &domain_sid, &user_rid,
705 &user_handle);
706 unbecome_root();
707 if (!NT_STATUS_IS_OK(status)) {
708 goto out;
709 }
710
711 status = dcerpc_samr_QueryUserInfo2(h,
712 mem_ctx,
713 &user_handle,
714 UserControlInformation,
715 &info,
716 &result);
717 if (!NT_STATUS_IS_OK(status)) {
718 goto out;
719 }
720 if (!NT_STATUS_IS_OK(result)) {
721 status = result;
722 goto out;
723 }
724
725 acct_ctrl = info->info16.acct_flags;
726
727 if (acct_ctrl & ACB_DISABLED) {
728 DEBUG(0,("get_md4pw: Workstation %s: account is disabled\n", mach_acct));
729 status = NT_STATUS_ACCOUNT_DISABLED;
730 goto out;
731 }
732
733 if (!(acct_ctrl & ACB_SVRTRUST) &&
734 !(acct_ctrl & ACB_WSTRUST) &&
735 !(acct_ctrl & ACB_DOMTRUST))
736 {
737 DEBUG(0,("get_md4pw: Workstation %s: account is not a trust account\n", mach_acct));
738 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
739 goto out;
740 }
741
742 switch (sec_chan_type) {
743 case SEC_CHAN_BDC:
744 if (!(acct_ctrl & ACB_SVRTRUST)) {
745 DEBUG(0,("get_md4pw: Workstation %s: BDC secure channel requested "
746 "but not a server trust account\n", mach_acct));
747 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
748 goto out;
749 }
750 break;
751 case SEC_CHAN_WKSTA:
752 if (!(acct_ctrl & ACB_WSTRUST)) {
753 DEBUG(0,("get_md4pw: Workstation %s: WORKSTATION secure channel requested "
754 "but not a workstation trust account\n", mach_acct));
755 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
756 goto out;
757 }
758 break;
759 case SEC_CHAN_DOMAIN:
760 if (!(acct_ctrl & ACB_DOMTRUST)) {
761 DEBUG(0,("get_md4pw: Workstation %s: DOMAIN secure channel requested "
762 "but not a interdomain trust account\n", mach_acct));
763 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
764 goto out;
765 }
766 break;
767 default:
768 break;
769 }
770
771 become_root();
772 status = dcerpc_samr_QueryUserInfo2(h,
773 mem_ctx,
774 &user_handle,
775 UserInternal1Information,
776 &info,
777 &result);
778 unbecome_root();
779 if (!NT_STATUS_IS_OK(status)) {
780 goto out;
781 }
782 if (!NT_STATUS_IS_OK(result)) {
783 status = result;
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 netlogon_server_pipe_state *pipe_state =
816 talloc_get_type(p->private_data, struct netlogon_server_pipe_state);
817
818 if (pipe_state) {
819 DEBUG(10,("_netr_ServerReqChallenge: new challenge requested. Clearing old state.\n"));
820 talloc_free(pipe_state);
821 p->private_data = NULL;
822 }
823
824 pipe_state = talloc(p, struct netlogon_server_pipe_state);
825 NT_STATUS_HAVE_NO_MEMORY(pipe_state);
826
827 pipe_state->client_challenge = *r->in.credentials;
828
829 generate_random_buffer(pipe_state->server_challenge.data,
830 sizeof(pipe_state->server_challenge.data));
831
832 *r->out.return_credentials = pipe_state->server_challenge;
833
834 p->private_data = pipe_state;
835
836 return NT_STATUS_OK;
837 }
838
839 /*************************************************************************
840 _netr_ServerAuthenticate
841 Create the initial credentials.
842 *************************************************************************/
843
844 NTSTATUS _netr_ServerAuthenticate(struct pipes_struct *p,
845 struct netr_ServerAuthenticate *r)
846 {
847 struct netr_ServerAuthenticate3 a;
848 uint32_t negotiate_flags = 0;
849 uint32_t rid;
850
851 a.in.server_name = r->in.server_name;
852 a.in.account_name = r->in.account_name;
853 a.in.secure_channel_type = r->in.secure_channel_type;
854 a.in.computer_name = r->in.computer_name;
855 a.in.credentials = r->in.credentials;
856 a.in.negotiate_flags = &negotiate_flags;
857
858 a.out.return_credentials = r->out.return_credentials;
859 a.out.rid = &rid;
860 a.out.negotiate_flags = &negotiate_flags;
861
862 return _netr_ServerAuthenticate3(p, &a);
863
864 }
865
866 /*************************************************************************
867 _netr_ServerAuthenticate3
868 *************************************************************************/
869
870 NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
871 struct netr_ServerAuthenticate3 *r)
872 {
873 NTSTATUS status;
874 uint32_t srv_flgs;
875 /* r->in.negotiate_flags is an aliased pointer to r->out.negotiate_flags,
876 * so use a copy to avoid destroying the client values. */
877 uint32_t in_neg_flags = *r->in.negotiate_flags;
878 const char *fn;
879 struct loadparm_context *lp_ctx;
880 struct dom_sid sid;
881 struct samr_Password mach_pwd;
882 struct netlogon_creds_CredentialState *creds;
883 struct netlogon_server_pipe_state *pipe_state =
884 talloc_get_type(p->private_data, struct netlogon_server_pipe_state);
885
886 /* According to Microsoft (see bugid #6099)
887 * Windows 7 looks at the negotiate_flags
888 * returned in this structure *even if the
889 * call fails with access denied* ! So in order
890 * to allow Win7 to connect to a Samba NT style
891 * PDC we set the flags before we know if it's
892 * an error or not.
893 */
894
895 /* 0x000001ff */
896 srv_flgs = NETLOGON_NEG_ACCOUNT_LOCKOUT |
897 NETLOGON_NEG_PERSISTENT_SAMREPL |
898 NETLOGON_NEG_ARCFOUR |
899 NETLOGON_NEG_PROMOTION_COUNT |
900 NETLOGON_NEG_CHANGELOG_BDC |
901 NETLOGON_NEG_FULL_SYNC_REPL |
902 NETLOGON_NEG_MULTIPLE_SIDS |
903 NETLOGON_NEG_REDO |
904 NETLOGON_NEG_PASSWORD_CHANGE_REFUSAL |
905 NETLOGON_NEG_PASSWORD_SET2;
906
907 /* Ensure we support strong (128-bit) keys. */
908 if (in_neg_flags & NETLOGON_NEG_STRONG_KEYS) {
909 srv_flgs |= NETLOGON_NEG_STRONG_KEYS;
910 }
911
912 if (in_neg_flags & NETLOGON_NEG_SUPPORTS_AES) {
913 srv_flgs |= NETLOGON_NEG_SUPPORTS_AES;
914 }
915
916 if (lp_server_schannel() != false) {
917 srv_flgs |= NETLOGON_NEG_SCHANNEL;
918 }
919
920 /*
921 * Support authenticaten of trusted domains.
922 *
923 * These flags are the minimum required set which works with win2k3
924 * and win2k8.
925 */
926 if (pdb_capabilities() & PDB_CAP_TRUSTED_DOMAINS_EX) {
927 srv_flgs |= NETLOGON_NEG_TRANSITIVE_TRUSTS |
928 NETLOGON_NEG_DNS_DOMAIN_TRUSTS |
929 NETLOGON_NEG_CROSS_FOREST_TRUSTS |
930 NETLOGON_NEG_NEUTRALIZE_NT4_EMULATION;
931 }
932
933 switch (p->opnum) {
934 case NDR_NETR_SERVERAUTHENTICATE:
935 fn = "_netr_ServerAuthenticate";
936 break;
937 case NDR_NETR_SERVERAUTHENTICATE2:
938 fn = "_netr_ServerAuthenticate2";
939 break;
940 case NDR_NETR_SERVERAUTHENTICATE3:
941 fn = "_netr_ServerAuthenticate3";
942 break;
943 default:
944 return NT_STATUS_INTERNAL_ERROR;
945 }
946
947 /* We use this as the key to store the creds: */
948 /* r->in.computer_name */
949
950 if (!pipe_state) {
951 DEBUG(0,("%s: no challenge sent to client %s\n", fn,
952 r->in.computer_name));
953 status = NT_STATUS_ACCESS_DENIED;
954 goto out;
955 }
956
957 if ( (lp_server_schannel() == true) &&
958 ((in_neg_flags & NETLOGON_NEG_SCHANNEL) == 0) ) {
959
960 /* schannel must be used, but client did not offer it. */
961 DEBUG(0,("%s: schannel required but client failed "
962 "to offer it. Client was %s\n",
963 fn, r->in.account_name));
964 status = NT_STATUS_ACCESS_DENIED;
965 goto out;
966 }
967
968 status = get_md4pw(&mach_pwd,
969 r->in.account_name,
970 r->in.secure_channel_type,
971 &sid, p->msg_ctx);
972 if (!NT_STATUS_IS_OK(status)) {
973 DEBUG(0,("%s: failed to get machine password for "
974 "account %s: %s\n",
975 fn, r->in.account_name, nt_errstr(status) ));
976 /* always return NT_STATUS_ACCESS_DENIED */
977 status = NT_STATUS_ACCESS_DENIED;
978 goto out;
979 }
980
981 /* From the client / server challenges and md4 password, generate sess key */
982 /* Check client credentials are valid. */
983 creds = netlogon_creds_server_init(p->mem_ctx,
984 r->in.account_name,
985 r->in.computer_name,
986 r->in.secure_channel_type,
987 &pipe_state->client_challenge,
988 &pipe_state->server_challenge,
989 &mach_pwd,
990 r->in.credentials,
991 r->out.return_credentials,
992 srv_flgs);
993 if (!creds) {
994 DEBUG(0,("%s: netlogon_creds_server_check failed. Rejecting auth "
995 "request from client %s machine account %s\n",
996 fn, r->in.computer_name,
997 r->in.account_name));
998 status = NT_STATUS_ACCESS_DENIED;
999 goto out;
1000 }
1001
1002 creds->sid = dom_sid_dup(creds, &sid);
1003 if (!creds->sid) {
1004 status = NT_STATUS_NO_MEMORY;
1005 goto out;
1006 }
1007
1008 lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers());
1009 if (lp_ctx == NULL) {
1010 DEBUG(10, ("loadparm_init_s3 failed\n"));
1011 status = NT_STATUS_INTERNAL_ERROR;
1012 goto out;
1013 }
1014
1015 /* Store off the state so we can continue after client disconnect. */
1016 become_root();
1017 status = schannel_save_creds_state(p->mem_ctx, lp_ctx, creds);
1018 unbecome_root();
1019
1020 talloc_unlink(p->mem_ctx, lp_ctx);
1021
1022 if (!NT_STATUS_IS_OK(status)) {
1023 goto out;
1024 }
1025
1026 sid_peek_rid(&sid, r->out.rid);
1027
1028 status = NT_STATUS_OK;
1029
1030 out:
1031
1032 *r->out.negotiate_flags = srv_flgs;
1033 return status;
1034 }
1035
1036 /*************************************************************************
1037 _netr_ServerAuthenticate2
1038 *************************************************************************/
1039
1040 NTSTATUS _netr_ServerAuthenticate2(struct pipes_struct *p,
1041 struct netr_ServerAuthenticate2 *r)
1042 {
1043 struct netr_ServerAuthenticate3 a;
1044 uint32_t rid;
1045
1046 a.in.server_name = r->in.server_name;
1047 a.in.account_name = r->in.account_name;
1048 a.in.secure_channel_type = r->in.secure_channel_type;
1049 a.in.computer_name = r->in.computer_name;
1050 a.in.credentials = r->in.credentials;
1051 a.in.negotiate_flags = r->in.negotiate_flags;
1052
1053 a.out.return_credentials = r->out.return_credentials;
1054 a.out.rid = &rid;
1055 a.out.negotiate_flags = r->out.negotiate_flags;
1056
1057 return _netr_ServerAuthenticate3(p, &a);
1058 }
1059
1060 /*************************************************************************
1061 * If schannel is required for this call test that it actually is available.
1062 *************************************************************************/
1063 static NTSTATUS schannel_check_required(struct pipe_auth_data *auth_info,
1064 const char *computer_name,
1065 bool integrity, bool privacy)
1066 {
1067 if (auth_info && auth_info->auth_type == DCERPC_AUTH_TYPE_SCHANNEL) {
1068 if (!privacy && !integrity) {
1069 return NT_STATUS_OK;
1070 }
1071
1072 if ((!privacy && integrity) &&
1073 auth_info->auth_level == DCERPC_AUTH_LEVEL_INTEGRITY) {
1074 return NT_STATUS_OK;
1075 }
1076
1077 if ((privacy || integrity) &&
1078 auth_info->auth_level == DCERPC_AUTH_LEVEL_PRIVACY) {
1079 return NT_STATUS_OK;
1080 }
1081 }
1082
1083 /* test didn't pass */
1084 DEBUG(0, ("schannel_check_required: [%s] is not using schannel\n",
1085 computer_name));
1086
1087 return NT_STATUS_ACCESS_DENIED;
1088 }
1089
1090 /*************************************************************************
1091 *************************************************************************/
1092
1093 static NTSTATUS netr_creds_server_step_check(struct pipes_struct *p,
1094 TALLOC_CTX *mem_ctx,
1095 const char *computer_name,
1096 struct netr_Authenticator *received_authenticator,
1097 struct netr_Authenticator *return_authenticator,
1098 struct netlogon_creds_CredentialState **creds_out)
1099 {
1100 NTSTATUS status;
1101 bool schannel_global_required = (lp_server_schannel() == true) ? true:false;
1102 struct loadparm_context *lp_ctx;
1103
1104 if (creds_out != NULL) {
1105 *creds_out = NULL;
1106 }
1107
1108 if (schannel_global_required) {
1109 status = schannel_check_required(&p->auth,
1110 computer_name,
1111 false, false);
1112 if (!NT_STATUS_IS_OK(status)) {
1113 return status;
1114 }
1115 }
1116
1117 lp_ctx = loadparm_init_s3(mem_ctx, loadparm_s3_helpers());
1118 if (lp_ctx == NULL) {
1119 DEBUG(0, ("loadparm_init_s3 failed\n"));
1120 return NT_STATUS_INTERNAL_ERROR;
1121 }
1122
1123 status = schannel_check_creds_state(mem_ctx, lp_ctx,
1124 computer_name, received_authenticator,
1125 return_authenticator, creds_out);
1126 talloc_unlink(mem_ctx, lp_ctx);
1127 return status;
1128 }
1129
1130 /*************************************************************************
1131 *************************************************************************/
1132
1133 static NTSTATUS netr_set_machine_account_password(TALLOC_CTX *mem_ctx,
1134 struct auth_session_info *session_info,
1135 struct messaging_context *msg_ctx,
1136 const char *account_name,
1137 struct samr_Password *nt_hash)
1138 {
1139 NTSTATUS status;
1140 NTSTATUS result = NT_STATUS_OK;
1141 struct dcerpc_binding_handle *h = NULL;
1142 struct tsocket_address *local;
1143 struct policy_handle user_handle;
1144 uint32_t acct_ctrl;
1145 union samr_UserInfo *info;
1146 struct samr_UserInfo18 info18;
1147 DATA_BLOB in,out;
1148 int rc;
1149 DATA_BLOB session_key;
1150
1151 ZERO_STRUCT(user_handle);
1152
1153 status = session_extract_session_key(session_info,
1154 &session_key,
1155 KEY_USE_16BYTES);
1156 if (!NT_STATUS_IS_OK(status)) {
1157 goto out;
1158 }
1159
1160 rc = tsocket_address_inet_from_strings(mem_ctx,
1161 "ip",
1162 "127.0.0.1",
1163 0,
1164 &local);
1165 if (rc < 0) {
1166 status = NT_STATUS_NO_MEMORY;
1167 goto out;
1168 }
1169
1170 status = rpcint_binding_handle(mem_ctx,
1171 &ndr_table_samr,
1172 local,
1173 session_info,
1174 msg_ctx,
1175 &h);
1176 if (!NT_STATUS_IS_OK(status)) {
1177 goto out;
1178 }
1179
1180 become_root();
1181 status = samr_find_machine_account(mem_ctx,
1182 h,
1183 account_name,
1184 SEC_FLAG_MAXIMUM_ALLOWED,
1185 NULL,
1186 NULL,
1187 &user_handle);
1188 unbecome_root();
1189 if (!NT_STATUS_IS_OK(status)) {
1190 goto out;
1191 }
1192
1193 status = dcerpc_samr_QueryUserInfo2(h,
1194 mem_ctx,
1195 &user_handle,
1196 UserControlInformation,
1197 &info,
1198 &result);
1199 if (!NT_STATUS_IS_OK(status)) {
1200 goto out;
1201 }
1202 if (!NT_STATUS_IS_OK(result)) {
1203 status = result;
1204 goto out;
1205 }
1206
1207 acct_ctrl = info->info16.acct_flags;
1208
1209 if (!(acct_ctrl & ACB_WSTRUST ||
1210 acct_ctrl & ACB_SVRTRUST ||
1211 acct_ctrl & ACB_DOMTRUST)) {
1212 status = NT_STATUS_NO_SUCH_USER;
1213 goto out;
1214 }
1215
1216 if (acct_ctrl & ACB_DISABLED) {
1217 status = NT_STATUS_ACCOUNT_DISABLED;
1218 goto out;
1219 }
1220
1221 ZERO_STRUCT(info18);
1222
1223 in = data_blob_const(nt_hash->hash, 16);
1224 out = data_blob_talloc_zero(mem_ctx, 16);
1225 sess_crypt_blob(&out, &in, &session_key, true);
1226 memcpy(info18.nt_pwd.hash, out.data, out.length);
1227
1228 info18.nt_pwd_active = true;
1229
1230 info->info18 = info18;
1231
1232 become_root();
1233 status = dcerpc_samr_SetUserInfo2(h,
1234 mem_ctx,
1235 &user_handle,
1236 UserInternal1Information,
1237 info,
1238 &result);
1239 unbecome_root();
1240 if (!NT_STATUS_IS_OK(status)) {
1241 goto out;
1242 }
1243 if (!NT_STATUS_IS_OK(result)) {
1244 status = result;
1245 goto out;
1246 }
1247
1248 out:
1249 if (h && is_valid_policy_hnd(&user_handle)) {
1250 dcerpc_samr_Close(h, mem_ctx, &user_handle, &result);
1251 }
1252
1253 return status;
1254 }
1255
1256 /*************************************************************************
1257 _netr_ServerPasswordSet
1258 *************************************************************************/
1259
1260 NTSTATUS _netr_ServerPasswordSet(struct pipes_struct *p,
1261 struct netr_ServerPasswordSet *r)
1262 {
1263 NTSTATUS status = NT_STATUS_OK;
1264 int i;
1265 struct netlogon_creds_CredentialState *creds = NULL;
1266
1267 DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__));
1268
1269 become_root();
1270 status = netr_creds_server_step_check(p, p->mem_ctx,
1271 r->in.computer_name,
1272 r->in.credential,
1273 r->out.return_authenticator,
1274 &creds);
1275 unbecome_root();
1276
1277 if (!NT_STATUS_IS_OK(status)) {
1278 const char *computer_name = "<unknown>";
1279
1280 if (creds != NULL && creds->computer_name != NULL) {
1281 computer_name = creds->computer_name;
1282 }
1283 DEBUG(2,("_netr_ServerPasswordSet: netlogon_creds_server_step failed. Rejecting auth "
1284 "request from client %s machine account %s\n",
1285 r->in.computer_name, computer_name));
1286 TALLOC_FREE(creds);
1287 return status;
1288 }
1289
1290 DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n",
1291 r->in.computer_name, creds->computer_name));
1292
1293 netlogon_creds_des_decrypt(creds, r->in.new_password);
1294
1295 DEBUG(100,("_netr_ServerPasswordSet: new given value was :\n"));
1296 for(i = 0; i < sizeof(r->in.new_password->hash); i++)
1297 DEBUG(100,("%02X ", r->in.new_password->hash[i]));
1298 DEBUG(100,("\n"));
1299
1300 status = netr_set_machine_account_password(p->mem_ctx,
1301 p->session_info,
1302 p->msg_ctx,
1303 creds->account_name,
1304 r->in.new_password);
1305 return status;
1306 }
1307
1308 /****************************************************************
1309 _netr_ServerPasswordSet2
1310 ****************************************************************/
1311
1312 NTSTATUS _netr_ServerPasswordSet2(struct pipes_struct *p,
1313 struct netr_ServerPasswordSet2 *r)
1314 {
1315 NTSTATUS status;
1316 struct netlogon_creds_CredentialState *creds = NULL;
1317 DATA_BLOB plaintext;
1318 struct samr_CryptPassword password_buf;
1319 struct samr_Password nt_hash;
1320
1321 become_root();
1322 status = netr_creds_server_step_check(p, p->mem_ctx,
1323 r->in.computer_name,
1324 r->in.credential,
1325 r->out.return_authenticator,
1326 &creds);
1327 unbecome_root();
1328
1329 if (!NT_STATUS_IS_OK(status)) {
1330 const char *computer_name = "<unknown>";
1331
1332 if (creds && creds->computer_name) {
1333 computer_name = creds->computer_name;
1334 }
1335 DEBUG(2,("_netr_ServerPasswordSet2: netlogon_creds_server_step "
1336 "failed. Rejecting auth request from client %s machine account %s\n",
1337 r->in.computer_name, computer_name));
1338 TALLOC_FREE(creds);
1339 return status;
1340 }
1341
1342 memcpy(password_buf.data, r->in.new_password->data, 512);
1343 SIVAL(password_buf.data, 512, r->in.new_password->length);
1344
1345 if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
1346 netlogon_creds_aes_decrypt(creds, password_buf.data, 516);
1347 } else {
1348 netlogon_creds_arcfour_crypt(creds, password_buf.data, 516);
1349 }
1350
1351 if (!extract_pw_from_buffer(p->mem_ctx, password_buf.data, &plaintext)) {
1352 TALLOC_FREE(creds);
1353 return NT_STATUS_WRONG_PASSWORD;
1354 }
1355
1356 mdfour(nt_hash.hash, plaintext.data, plaintext.length);
1357
1358 status = netr_set_machine_account_password(p->mem_ctx,
1359 p->session_info,
1360 p->msg_ctx,
1361 creds->account_name,
1362 &nt_hash);
1363 TALLOC_FREE(creds);
1364 return status;
1365 }
1366
1367 /*************************************************************************
1368 _netr_LogonSamLogoff
1369 *************************************************************************/
1370
1371 NTSTATUS _netr_LogonSamLogoff(struct pipes_struct *p,
1372 struct netr_LogonSamLogoff *r)
1373 {
1374 NTSTATUS status;
1375 struct netlogon_creds_CredentialState *creds;
1376
1377 become_root();
1378 status = netr_creds_server_step_check(p, p->mem_ctx,
1379 r->in.computer_name,
1380 r->in.credential,
1381 r->out.return_authenticator,
1382 &creds);
1383 unbecome_root();
1384
1385 return status;
1386 }
1387
1388 static NTSTATUS _netr_LogonSamLogon_check(const struct netr_LogonSamLogonEx *r)
1389 {
1390 switch (r->in.logon_level) {
1391 case NetlogonInteractiveInformation:
1392 case NetlogonServiceInformation:
1393 case NetlogonInteractiveTransitiveInformation:
1394 case NetlogonServiceTransitiveInformation:
1395 if (r->in.logon->password == NULL) {
1396 return NT_STATUS_INVALID_PARAMETER;
1397 }
1398
1399 switch (r->in.validation_level) {
1400 case NetlogonValidationSamInfo: /* 2 */
1401 case NetlogonValidationSamInfo2: /* 3 */
1402 break;
1403 case NetlogonValidationSamInfo4: /* 6 */
1404 if ((pdb_capabilities() & PDB_CAP_ADS) == 0) {
1405 DEBUG(10,("Not adding validation info level 6 "
1406 "without ADS passdb backend\n"));
1407 return NT_STATUS_INVALID_INFO_CLASS;
1408 }
1409 break;
1410 default:
1411 return NT_STATUS_INVALID_INFO_CLASS;
1412 }
1413
1414 break;
1415 case NetlogonNetworkInformation:
1416 case NetlogonNetworkTransitiveInformation:
1417 if (r->in.logon->network == NULL) {
1418 return NT_STATUS_INVALID_PARAMETER;
1419 }
1420
1421 switch (r->in.validation_level) {
1422 case NetlogonValidationSamInfo: /* 2 */
1423 case NetlogonValidationSamInfo2: /* 3 */
1424 break;
1425 case NetlogonValidationSamInfo4: /* 6 */
1426 if ((pdb_capabilities() & PDB_CAP_ADS) == 0) {
1427 DEBUG(10,("Not adding validation info level 6 "
1428 "without ADS passdb backend\n"));
1429 return NT_STATUS_INVALID_INFO_CLASS;
1430 }
1431 break;
1432 default:
1433 return NT_STATUS_INVALID_INFO_CLASS;
1434 }
1435
1436 break;
1437
1438 case NetlogonGenericInformation:
1439 if (r->in.logon->generic == NULL) {
1440 return NT_STATUS_INVALID_PARAMETER;
1441 }
1442
1443 /* we don't support this here */
1444 return NT_STATUS_INVALID_PARAMETER;
1445 #if 0
1446 switch (r->in.validation_level) {
1447 /* TODO: case NetlogonValidationGenericInfo: 4 */
1448 case NetlogonValidationGenericInfo2: /* 5 */
1449 break;
1450 default:
1451 return NT_STATUS_INVALID_INFO_CLASS;
1452 }
1453
1454 break;
1455 #endif
1456 default:
1457 return NT_STATUS_INVALID_PARAMETER;
1458 }
1459
1460 return NT_STATUS_OK;
1461 }
1462
1463 /*************************************************************************
1464 _netr_LogonSamLogon_base
1465 *************************************************************************/
1466
1467 static NTSTATUS _netr_LogonSamLogon_base(struct pipes_struct *p,
1468 struct netr_LogonSamLogonEx *r,
1469 struct netlogon_creds_CredentialState *creds)
1470 {
1471 NTSTATUS status = NT_STATUS_OK;
1472 union netr_LogonLevel *logon = r->in.logon;
1473 const char *nt_username, *nt_domain, *nt_workstation;
1474 struct auth_usersupplied_info *user_info = NULL;
1475 struct auth_serversupplied_info *server_info = NULL;
1476 struct auth_context *auth_context = NULL;
1477 const char *fn;
1478 struct netr_SamBaseInfo *base;
1479
1480 switch (p->opnum) {
1481 case NDR_NETR_LOGONSAMLOGON:
1482 fn = "_netr_LogonSamLogon";
1483 break;
1484 case NDR_NETR_LOGONSAMLOGONWITHFLAGS:
1485 fn = "_netr_LogonSamLogonWithFlags";
1486 break;
1487 case NDR_NETR_LOGONSAMLOGONEX:
1488 fn = "_netr_LogonSamLogonEx";
1489 break;
1490 default:
1491 return NT_STATUS_INTERNAL_ERROR;
1492 }
1493
1494 *r->out.authoritative = true; /* authoritative response */
1495
1496 switch (r->in.validation_level) {
1497 case 2:
1498 r->out.validation->sam2 = talloc_zero(p->mem_ctx, struct netr_SamInfo2);
1499 if (!r->out.validation->sam2) {
1500 return NT_STATUS_NO_MEMORY;
1501 }
1502 break;
1503 case 3:
1504 r->out.validation->sam3 = talloc_zero(p->mem_ctx, struct netr_SamInfo3);
1505 if (!r->out.validation->sam3) {
1506 return NT_STATUS_NO_MEMORY;
1507 }
1508 break;
1509 case 6:
1510 r->out.validation->sam6 = talloc_zero(p->mem_ctx, struct netr_SamInfo6);
1511 if (!r->out.validation->sam6) {
1512 return NT_STATUS_NO_MEMORY;
1513 }
1514 break;
1515 default:
1516 DEBUG(0,("%s: bad validation_level value %d.\n",
1517 fn, (int)r->in.validation_level));
1518 return NT_STATUS_INVALID_INFO_CLASS;
1519 }
1520
1521 switch (r->in.logon_level) {
1522 case NetlogonInteractiveInformation:
1523 case NetlogonServiceInformation:
1524 case NetlogonInteractiveTransitiveInformation:
1525 case NetlogonServiceTransitiveInformation:
1526 nt_username = logon->password->identity_info.account_name.string ?
1527 logon->password->identity_info.account_name.string : "";
1528 nt_domain = logon->password->identity_info.domain_name.string ?
1529 logon->password->identity_info.domain_name.string : "";
1530 nt_workstation = logon->password->identity_info.workstation.string ?
1531 logon->password->identity_info.workstation.string : "";
1532
1533 DEBUG(3,("SAM Logon (Interactive). Domain:[%s]. ", lp_workgroup()));
1534 break;
1535 case NetlogonNetworkInformation:
1536 case NetlogonNetworkTransitiveInformation:
1537 nt_username = logon->network->identity_info.account_name.string ?
1538 logon->network->identity_info.account_name.string : "";
1539 nt_domain = logon->network->identity_info.domain_name.string ?
1540 logon->network->identity_info.domain_name.string : "";
1541 nt_workstation = logon->network->identity_info.workstation.string ?
1542 logon->network->identity_info.workstation.string : "";
1543
1544 DEBUG(3,("SAM Logon (Network). Domain:[%s]. ", lp_workgroup()));
1545 break;
1546 default:
1547 DEBUG(2,("SAM Logon: unsupported switch value\n"));
1548 return NT_STATUS_INVALID_INFO_CLASS;
1549 } /* end switch */
1550
1551 DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username, nt_workstation, nt_domain));
1552 fstrcpy(current_user_info.smb_name, nt_username);
1553 sub_set_smb_name(nt_username);
1554
1555 DEBUG(5,("Attempting validation level %d for unmapped username %s.\n",
1556 r->in.validation_level, nt_username));
1557
1558 status = NT_STATUS_OK;
1559
1560 switch (r->in.logon_level) {
1561 case NetlogonNetworkInformation:
1562 case NetlogonNetworkTransitiveInformation:
1563 {
1564 const char *wksname = nt_workstation;
1565
1566 status = make_auth_context_fixed(talloc_tos(), &auth_context,
1567 logon->network->challenge);
1568 if (!NT_STATUS_IS_OK(status)) {
1569 return status;
1570 }
1571
1572 /* For a network logon, the workstation name comes in with two
1573 * backslashes in the front. Strip them if they are there. */
1574
1575 if (*wksname == '\\') wksname++;
1576 if (*wksname == '\\') wksname++;
1577
1578 /* Standard challenge/response authentication */
1579 if (!make_user_info_netlogon_network(&user_info,
1580 nt_username, nt_domain,
1581 wksname,
1582 p->remote_address,
1583 logon->network->identity_info.parameter_control,
1584 logon->network->lm.data,
1585 logon->network->lm.length,
1586 logon->network->nt.data,
1587 logon->network->nt.length)) {
1588 status = NT_STATUS_NO_MEMORY;
1589 }
1590 break;
1591 }
1592 case NetlogonInteractiveInformation:
1593 case NetlogonServiceInformation:
1594 case NetlogonInteractiveTransitiveInformation:
1595 case NetlogonServiceTransitiveInformation:
1596
1597 /* 'Interactive' authentication, supplies the password in its
1598 MD4 form, encrypted with the session key. We will convert
1599 this to challenge/response for the auth subsystem to chew
1600 on */
1601 {
1602 uint8_t chal[8];
1603
1604 #ifdef DEBUG_PASSWORD
1605 DEBUG(100,("lm owf password:"));
1606 dump_data(100, logon->password->lmpassword.hash, 16);
1607
1608 DEBUG(100,("nt owf password:"));
1609 dump_data(100, logon->password->ntpassword.hash, 16);
1610 #endif
1611 if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
1612 netlogon_creds_aes_decrypt(creds,
1613 logon->password->lmpassword.hash,
1614 16);
1615 netlogon_creds_aes_decrypt(creds,
1616 logon->password->ntpassword.hash,
1617 16);
1618 } else if (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR) {
1619 netlogon_creds_arcfour_crypt(creds,
1620 logon->password->lmpassword.hash,
1621 16);
1622 netlogon_creds_arcfour_crypt(creds,
1623 logon->password->ntpassword.hash,
1624 16);
1625 } else {
1626 netlogon_creds_des_decrypt(creds, &logon->password->lmpassword);
1627 netlogon_creds_des_decrypt(creds, &logon->password->ntpassword);
1628 }
1629
1630 #ifdef DEBUG_PASSWORD
1631 DEBUG(100,("decrypt of lm owf password:"));
1632 dump_data(100, logon->password->lmpassword.hash, 16);
1633
1634 DEBUG(100,("decrypt of nt owf password:"));
1635 dump_data(100, logon->password->ntpassword.hash, 16);
1636 #endif
1637 status = make_auth_context_subsystem(talloc_tos(),
1638 &auth_context);
1639 if (!NT_STATUS_IS_OK(status)) {
1640 return status;
1641 }
1642
1643 auth_get_ntlm_challenge(auth_context, chal);
1644
1645 if (!make_user_info_netlogon_interactive(&user_info,
1646 nt_username, nt_domain,
1647 nt_workstation,
1648 p->remote_address,
1649 logon->password->identity_info.parameter_control,
1650 chal,
1651 logon->password->lmpassword.hash,
1652 logon->password->ntpassword.hash)) {
1653 status = NT_STATUS_NO_MEMORY;
1654 }
1655 break;
1656 }
1657 default:
1658 DEBUG(2,("SAM Logon: unsupported switch value\n"));
1659 return NT_STATUS_INVALID_INFO_CLASS;
1660 } /* end switch */
1661
1662 if ( NT_STATUS_IS_OK(status) ) {
1663 status = auth_check_ntlm_password(auth_context,
1664 user_info, &server_info);
1665 }
1666
1667 TALLOC_FREE(auth_context);
1668 free_user_info(&user_info);
1669
1670 DEBUG(5,("%s: check_password returned status %s\n",
1671 fn, nt_errstr(status)));
1672
1673 /* Check account and password */
1674
1675 if (!NT_STATUS_IS_OK(status)) {
1676 /* If we don't know what this domain is, we need to
1677 indicate that we are not authoritative. This
1678 allows the client to decide if it needs to try
1679 a local user. Fix by jpjanosi@us.ibm.com, #2976 */
1680 if ( NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)
1681 && !strequal(nt_domain, get_global_sam_name())
1682 && !is_trusted_domain(nt_domain) )
1683 *r->out.authoritative = false; /* We are not authoritative */
1684
1685 TALLOC_FREE(server_info);
1686 return status;
1687 }
1688
1689 if (server_info->guest) {
1690 /* We don't like guest domain logons... */
1691 DEBUG(5,("%s: Attempted domain logon as GUEST "
1692 "denied.\n", fn));
1693 TALLOC_FREE(server_info);
1694 return NT_STATUS_LOGON_FAILURE;
1695 }
1696
1697 /* This is the point at which, if the login was successful, that
1698 the SAM Local Security Authority should record that the user is
1699 logged in to the domain. */
1700
1701 switch (r->in.validation_level) {
1702 case 2:
1703 status = serverinfo_to_SamInfo2(server_info,
1704 r->out.validation->sam2);
1705 base = &r->out.validation->sam2->base;
1706 break;
1707 case 3:
1708 status = serverinfo_to_SamInfo3(server_info,
1709 r->out.validation->sam3);
1710 base = &r->out.validation->sam3->base;
1711 break;
1712 case 6:
1713 status = serverinfo_to_SamInfo6(server_info,
1714 r->out.validation->sam6);
1715 base = &r->out.validation->sam6->base;
1716 break;
1717 }
1718
1719 TALLOC_FREE(server_info);
1720
1721 if (!NT_STATUS_IS_OK(status)) {
1722 return status;
1723 }
1724
1725 if (r->in.validation_level == 6) {
1726 /* no further crypto to be applied - gd */
1727 return NT_STATUS_OK;
1728 }
1729
1730 if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
1731 netlogon_creds_aes_encrypt(creds, base->key.key, 16);
1732 netlogon_creds_aes_encrypt(creds, base->LMSessKey.key, 8);
1733 } else if (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR) {
1734 netlogon_creds_arcfour_crypt(creds, base->key.key, 16);
1735 netlogon_creds_arcfour_crypt(creds, base->LMSessKey.key, 8);
1736 } else {
1737 /* key is unencrypted when neither AES nor RC4 bits are set */
1738 netlogon_creds_des_encrypt_LMKey(creds, &base->LMSessKey);
1739 }
1740
1741 return NT_STATUS_OK;
1742 }
1743
1744 /****************************************************************
1745 _netr_LogonSamLogonWithFlags
1746 ****************************************************************/
1747
1748 NTSTATUS _netr_LogonSamLogonWithFlags(struct pipes_struct *p,
1749 struct netr_LogonSamLogonWithFlags *r)
1750 {
1751 NTSTATUS status;
1752 struct netlogon_creds_CredentialState *creds;
1753 struct netr_LogonSamLogonEx r2;
1754 struct netr_Authenticator return_authenticator;
1755
1756 *r->out.authoritative = true;
1757
1758 r2.in.server_name = r->in.server_name;
1759 r2.in.computer_name = r->in.computer_name;
1760 r2.in.logon_level = r->in.logon_level;
1761 r2.in.logon = r->in.logon;
1762 r2.in.validation_level = r->in.validation_level;
1763 r2.in.flags = r->in.flags;
1764 r2.out.validation = r->out.validation;
1765 r2.out.authoritative = r->out.authoritative;
1766 r2.out.flags = r->out.flags;
1767
1768 status = _netr_LogonSamLogon_check(&r2);
1769 if (!NT_STATUS_IS_OK(status)) {
1770 return status;
1771 }
1772
1773 become_root();
1774 status = netr_creds_server_step_check(p, p->mem_ctx,
1775 r->in.computer_name,
1776 r->in.credential,
1777 &return_authenticator,
1778 &creds);
1779 unbecome_root();
1780 if (!NT_STATUS_IS_OK(status)) {
1781 return status;
1782 }
1783
1784 status = _netr_LogonSamLogon_base(p, &r2, creds);
1785
1786 *r->out.return_authenticator = return_authenticator;
1787
1788 return status;
1789 }
1790
1791 /*************************************************************************
1792 _netr_LogonSamLogon
1793 *************************************************************************/
1794
1795 NTSTATUS _netr_LogonSamLogon(struct pipes_struct *p,
1796 struct netr_LogonSamLogon *r)
1797 {
1798 NTSTATUS status;
1799 struct netr_LogonSamLogonWithFlags r2;
1800 uint32_t flags = 0;
1801
1802 r2.in.server_name = r->in.server_name;
1803 r2.in.computer_name = r->in.computer_name;
1804 r2.in.credential = r->in.credential;
1805 r2.in.logon_level = r->in.logon_level;
1806 r2.in.logon = r->in.logon;
1807 r2.in.validation_level = r->in.validation_level;
1808 r2.in.return_authenticator = r->in.return_authenticator;
1809 r2.in.flags = &flags;
1810 r2.out.validation = r->out.validation;
1811 r2.out.authoritative = r->out.authoritative;
1812 r2.out.flags = &flags;
1813 r2.out.return_authenticator = r->out.return_authenticator;
1814
1815 status = _netr_LogonSamLogonWithFlags(p, &r2);
1816
1817 return status;
1818 }
1819
1820 /*************************************************************************
1821 _netr_LogonSamLogonEx
1822 - no credential chaining. Map into net sam logon.
1823 *************************************************************************/
1824
1825 NTSTATUS _netr_LogonSamLogonEx(struct pipes_struct *p,
1826 struct netr_LogonSamLogonEx *r)
1827 {
1828 NTSTATUS status;
1829 struct netlogon_creds_CredentialState *creds = NULL;
1830 struct loadparm_context *lp_ctx;
1831
1832 *r->out.authoritative = true;
1833
1834 status = _netr_LogonSamLogon_check(r);
1835 if (!NT_STATUS_IS_OK(status)) {
1836 return status;
1837 }
1838
1839 /* Only allow this if the pipe is protected. */
1840 if (p->auth.auth_type != DCERPC_AUTH_TYPE_SCHANNEL) {
1841 DEBUG(0,("_netr_LogonSamLogonEx: client %s not using schannel for netlogon\n",
1842 get_remote_machine_name() ));
1843 return NT_STATUS_INVALID_PARAMETER;
1844 }
1845
1846 lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers());
1847 if (lp_ctx == NULL) {
1848 DEBUG(0, ("loadparm_init_s3 failed\n"));
1849 return NT_STATUS_INTERNAL_ERROR;
1850 }
1851
1852 become_root();
1853 status = schannel_get_creds_state(p->mem_ctx, lp_ctx,
1854 r->in.computer_name, &creds);
1855 unbecome_root();
1856 talloc_unlink(p->mem_ctx, lp_ctx);
1857
1858 if (!NT_STATUS_IS_OK(status)) {
1859 return status;
1860 }
1861
1862 status = _netr_LogonSamLogon_base(p, r, creds);
1863 TALLOC_FREE(creds);
1864
1865 return status;
1866 }
1867
1868 /*************************************************************************
1869 _ds_enum_dom_trusts
1870 *************************************************************************/
1871 #if 0 /* JERRY -- not correct */
1872 NTSTATUS _ds_enum_dom_trusts(struct pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u,
1873 DS_R_ENUM_DOM_TRUSTS *r_u)
1874 {
1875 NTSTATUS status = NT_STATUS_OK;
1876
1877 /* TODO: According to MSDN, the can only be executed against a
1878 DC or domain member running Windows 2000 or later. Need
1879 to test against a standalone 2k server and see what it
1880 does. A windows 2000 DC includes its own domain in the
1881 list. --jerry */
1882
1883 return status;
1884 }
1885 #endif /* JERRY */
1886
1887
1888 /****************************************************************
1889 ****************************************************************/
1890
1891 WERROR _netr_LogonUasLogon(struct pipes_struct *p,
1892 struct netr_LogonUasLogon *r)
1893 {
1894 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1895 return WERR_NOT_SUPPORTED;
1896 }
1897
1898 /****************************************************************
1899 ****************************************************************/
1900
1901 WERROR _netr_LogonUasLogoff(struct pipes_struct *p,
1902 struct netr_LogonUasLogoff *r)
1903 {
1904 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1905 return WERR_NOT_SUPPORTED;
1906 }
1907
1908 /****************************************************************
1909 ****************************************************************/
1910
1911 NTSTATUS _netr_DatabaseDeltas(struct pipes_struct *p,
1912 struct netr_DatabaseDeltas *r)
1913 {
1914 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1915 return NT_STATUS_NOT_IMPLEMENTED;
1916 }
1917
1918 /****************************************************************
1919 ****************************************************************/
1920
1921 NTSTATUS _netr_DatabaseSync(struct pipes_struct *p,
1922 struct netr_DatabaseSync *r)
1923 {
1924 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1925 return NT_STATUS_NOT_IMPLEMENTED;
1926 }
1927
1928 /****************************************************************
1929 ****************************************************************/
1930
1931 NTSTATUS _netr_AccountDeltas(struct pipes_struct *p,
1932 struct netr_AccountDeltas *r)
1933 {
1934 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1935 return NT_STATUS_NOT_IMPLEMENTED;
1936 }
1937
1938 /****************************************************************
1939 ****************************************************************/
1940
1941 NTSTATUS _netr_AccountSync(struct pipes_struct *p,
1942 struct netr_AccountSync *r)
1943 {
1944 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1945 return NT_STATUS_NOT_IMPLEMENTED;
1946 }
1947
1948 /****************************************************************
1949 ****************************************************************/
1950
1951 static bool wb_getdcname(TALLOC_CTX *mem_ctx,
1952 const char *domain,
1953 const char **dcname,
1954 uint32_t flags,
1955 WERROR *werr)
1956 {
1957 wbcErr result;
1958 struct wbcDomainControllerInfo *dc_info = NULL;
1959
1960 result = wbcLookupDomainController(domain,
1961 flags,
1962 &dc_info);
1963 switch (result) {
1964 case WBC_ERR_SUCCESS:
1965 break;
1966 case WBC_ERR_WINBIND_NOT_AVAILABLE:
1967 return false;
1968 case WBC_ERR_DOMAIN_NOT_FOUND:
1969 *werr = WERR_NO_SUCH_DOMAIN;
1970 return true;
1971 default:
1972 *werr = WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1973 return true;
1974 }
1975
1976 *dcname = talloc_strdup(mem_ctx, dc_info->dc_name);
1977 wbcFreeMemory(dc_info);
1978 if (!*dcname) {
1979 *werr = WERR_NOMEM;
1980 return false;
1981 }
1982
1983 *werr = WERR_OK;
1984
1985 return true;
1986 }
1987
1988 /****************************************************************
1989 _netr_GetDcName
1990 ****************************************************************/
1991
1992 WERROR _netr_GetDcName(struct pipes_struct *p,
1993 struct netr_GetDcName *r)
1994 {
1995 NTSTATUS status;
1996 WERROR werr;
1997 uint32_t flags;
1998 struct netr_DsRGetDCNameInfo *info;
1999 bool ret;
2000
2001 ret = wb_getdcname(p->mem_ctx,
2002 r->in.domainname,
2003 r->out.dcname,
2004 WBC_LOOKUP_DC_IS_FLAT_NAME |
2005 WBC_LOOKUP_DC_RETURN_FLAT_NAME |
2006 WBC_LOOKUP_DC_PDC_REQUIRED,
2007 &werr);
2008 if (ret == true) {
2009 return werr;
2010 }
2011
2012 flags = DS_PDC_REQUIRED | DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
2013
2014 status = dsgetdcname(p->mem_ctx,
2015 p->msg_ctx,
2016 r->in.domainname,
2017 NULL,
2018 NULL,
2019 flags,
2020 &info);
2021 if (!NT_STATUS_IS_OK(status)) {
2022 return ntstatus_to_werror(status);
2023 }
2024
2025 *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
2026 talloc_free(info);
2027 if (!*r->out.dcname) {
2028 return WERR_NOMEM;
2029 }
2030
2031 return WERR_OK;
2032 }
2033
2034 /****************************************************************
2035 _netr_GetAnyDCName
2036 ****************************************************************/
2037
2038 WERROR _netr_GetAnyDCName(struct pipes_struct *p,
2039 struct netr_GetAnyDCName *r)
2040 {
2041 NTSTATUS status;
2042 WERROR werr;
2043 uint32_t flags;
2044 struct netr_DsRGetDCNameInfo *info;
2045 bool ret;
2046
2047 ret = wb_getdcname(p->mem_ctx,
2048 r->in.domainname,
2049 r->out.dcname,
2050 WBC_LOOKUP_DC_IS_FLAT_NAME |
2051 WBC_LOOKUP_DC_RETURN_FLAT_NAME,
2052 &werr);
2053 if (ret == true) {
2054 return werr;
2055 }
2056
2057 flags = DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
2058
2059 status = dsgetdcname(p->mem_ctx,
2060 p->msg_ctx,
2061 r->in.domainname,
2062 NULL,
2063 NULL,
2064 flags,
2065 &info);
2066 if (!NT_STATUS_IS_OK(status)) {
2067 return ntstatus_to_werror(status);
2068 }
2069
2070 *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
2071 talloc_free(info);
2072 if (!*r->out.dcname) {
2073 return WERR_NOMEM;
2074 }
2075
2076 return WERR_OK;
2077 }
2078
2079 /****************************************************************
2080 ****************************************************************/
2081
2082 NTSTATUS _netr_DatabaseSync2(struct pipes_struct *p,
2083 struct netr_DatabaseSync2 *r)
2084 {
2085 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2086 return NT_STATUS_NOT_IMPLEMENTED;
2087 }
2088
2089 /****************************************************************
2090 ****************************************************************/
2091
2092 NTSTATUS _netr_DatabaseRedo(struct pipes_struct *p,
2093 struct netr_DatabaseRedo *r)
2094 {
2095 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2096 return NT_STATUS_NOT_IMPLEMENTED;
2097 }
2098
2099 /****************************************************************
2100 ****************************************************************/
2101
2102 WERROR _netr_DsRGetDCName(struct pipes_struct *p,
2103 struct netr_DsRGetDCName *r)
2104 {
2105 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2106 return WERR_NOT_SUPPORTED;
2107 }
2108
2109 /****************************************************************
2110 ****************************************************************/
2111
2112 NTSTATUS _netr_LogonGetCapabilities(struct pipes_struct *p,
2113 struct netr_LogonGetCapabilities *r)
2114 {
2115 struct netlogon_creds_CredentialState *creds;
2116 NTSTATUS status;
2117
2118 become_root();
2119 status = netr_creds_server_step_check(p, p->mem_ctx,
2120 r->in.computer_name,
2121 r->in.credential,
2122 r->out.return_authenticator,
2123 &creds);
2124 unbecome_root();
2125 if (!NT_STATUS_IS_OK(status)) {
2126 return status;
2127 }
2128
2129 if (r->in.query_level != 1) {
2130 return NT_STATUS_NOT_SUPPORTED;
2131 }
2132
2133 r->out.capabilities->server_capabilities = creds->negotiate_flags;
2134
2135 return NT_STATUS_OK;
2136 }
2137
2138 /****************************************************************
2139 ****************************************************************/
2140
2141 WERROR _netr_NETRLOGONSETSERVICEBITS(struct pipes_struct *p,
2142 struct netr_NETRLOGONSETSERVICEBITS *r)
2143 {
2144 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2145 return WERR_NOT_SUPPORTED;
2146 }
2147
2148 /****************************************************************
2149 ****************************************************************/
2150
2151 WERROR _netr_LogonGetTrustRid(struct pipes_struct *p,
2152 struct netr_LogonGetTrustRid *r)
2153 {
2154 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2155 return WERR_NOT_SUPPORTED;
2156 }
2157
2158 /****************************************************************
2159 ****************************************************************/
2160
2161 WERROR _netr_NETRLOGONCOMPUTESERVERDIGEST(struct pipes_struct *p,
2162 struct netr_NETRLOGONCOMPUTESERVERDIGEST *r)
2163 {
2164 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2165 return WERR_NOT_SUPPORTED;
2166 }
2167
2168 /****************************************************************
2169 ****************************************************************/
2170
2171 WERROR _netr_NETRLOGONCOMPUTECLIENTDIGEST(struct pipes_struct *p,
2172 struct netr_NETRLOGONCOMPUTECLIENTDIGEST *r)
2173 {
2174 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2175 return WERR_NOT_SUPPORTED;
2176 }
2177
2178 /****************************************************************
2179 ****************************************************************/
2180
2181 WERROR _netr_DsRGetDCNameEx(struct pipes_struct *p,
2182 struct netr_DsRGetDCNameEx *r)
2183 {
2184 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2185 return WERR_NOT_SUPPORTED;
2186 }
2187
2188 /****************************************************************
2189 ****************************************************************/
2190
2191 WERROR _netr_DsRGetSiteName(struct pipes_struct *p,
2192 struct netr_DsRGetSiteName *r)
2193 {
2194 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2195 return WERR_NOT_SUPPORTED;
2196 }
2197
2198 /****************************************************************
2199 ****************************************************************/
2200
2201 NTSTATUS _netr_LogonGetDomainInfo(struct pipes_struct *p,
2202 struct netr_LogonGetDomainInfo *r)
2203 {
2204 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2205 return NT_STATUS_NOT_IMPLEMENTED;
2206 }
2207
2208 /****************************************************************
2209 ****************************************************************/
2210
2211 WERROR _netr_ServerPasswordGet(struct pipes_struct *p,
2212 struct netr_ServerPasswordGet *r)
2213 {
2214 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2215 return WERR_NOT_SUPPORTED;
2216 }
2217
2218 /****************************************************************
2219 ****************************************************************/
2220
2221 WERROR _netr_NETRLOGONSENDTOSAM(struct pipes_struct *p,
2222 struct netr_NETRLOGONSENDTOSAM *r)
2223 {
2224 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2225 return WERR_NOT_SUPPORTED;
2226 }
2227
2228 /****************************************************************
2229 ****************************************************************/
2230
2231 WERROR _netr_DsRAddressToSitenamesW(struct pipes_struct *p,
2232 struct netr_DsRAddressToSitenamesW *r)
2233 {
2234 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2235 return WERR_NOT_SUPPORTED;
2236 }
2237
2238 /****************************************************************
2239 ****************************************************************/
2240
2241 WERROR _netr_DsRGetDCNameEx2(struct pipes_struct *p,
2242 struct netr_DsRGetDCNameEx2 *r)
2243 {
2244 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2245 return WERR_NOT_SUPPORTED;
2246 }
2247
2248 /****************************************************************
2249 ****************************************************************/
2250
2251 WERROR _netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN(struct pipes_struct *p,
2252 struct netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN *r)
2253 {
2254 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2255 return WERR_NOT_SUPPORTED;
2256 }
2257
2258 /****************************************************************
2259 ****************************************************************/
2260
2261 WERROR _netr_NetrEnumerateTrustedDomainsEx(struct pipes_struct *p,
2262 struct netr_NetrEnumerateTrustedDomainsEx *r)
2263 {
2264 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2265 return WERR_NOT_SUPPORTED;
2266 }
2267
2268 /****************************************************************
2269 ****************************************************************/
2270
2271 WERROR _netr_DsRAddressToSitenamesExW(struct pipes_struct *p,
2272 struct netr_DsRAddressToSitenamesExW *r)
2273 {
2274 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2275 return WERR_NOT_SUPPORTED;
2276 }
2277
2278 /****************************************************************
2279 ****************************************************************/
2280
2281 WERROR _netr_DsrGetDcSiteCoverageW(struct pipes_struct *p,
2282 struct netr_DsrGetDcSiteCoverageW *r)
2283 {
2284 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2285 return WERR_NOT_SUPPORTED;
2286 }
2287
2288 /****************************************************************
2289 ****************************************************************/
2290
2291 WERROR _netr_DsrEnumerateDomainTrusts(struct pipes_struct *p,
2292 struct netr_DsrEnumerateDomainTrusts *r)
2293 {
2294 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2295 return WERR_NOT_SUPPORTED;
2296 }
2297
2298 /****************************************************************
2299 ****************************************************************/
2300
2301 WERROR _netr_DsrDeregisterDNSHostRecords(struct pipes_struct *p,
2302 struct netr_DsrDeregisterDNSHostRecords *r)
2303 {
2304 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2305 return WERR_NOT_SUPPORTED;
2306 }
2307
2308 /****************************************************************
2309 ****************************************************************/
2310
2311 NTSTATUS _netr_ServerTrustPasswordsGet(struct pipes_struct *p,
2312 struct netr_ServerTrustPasswordsGet *r)
2313 {
2314 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2315 return NT_STATUS_NOT_IMPLEMENTED;
2316 }
2317
2318 /****************************************************************
2319 ****************************************************************/
2320
2321 static NTSTATUS fill_forest_trust_array(TALLOC_CTX *mem_ctx,
2322 struct lsa_ForestTrustInformation *info)
2323 {
2324 struct lsa_ForestTrustRecord *e;
2325 struct pdb_domain_info *dom_info;
2326 struct lsa_ForestTrustDomainInfo *domain_info;
2327 char **upn_suffixes = NULL;
2328 uint32_t num_suffixes = 0;
2329 uint32_t i = 0;
2330 NTSTATUS status;
2331
2332 dom_info = pdb_get_domain_info(mem_ctx);
2333 if (dom_info == NULL) {
2334 return NT_STATUS_NO_MEMORY;
2335 }
2336
2337 info->count = 2;
2338
2339 become_root();
2340 status = pdb_enum_upn_suffixes(info, &num_suffixes, &upn_suffixes);
2341 unbecome_root();
2342 if (NT_STATUS_IS_OK(status) && (num_suffixes > 0)) {
2343 info->count += num_suffixes;
2344 }
2345
2346 info->entries = talloc_array(info, struct lsa_ForestTrustRecord *, info->count);
2347 if (info->entries == NULL) {
2348 return NT_STATUS_NO_MEMORY;
2349 }
2350
2351 e = talloc(info, struct lsa_ForestTrustRecord);
2352 if (e == NULL) {
2353 return NT_STATUS_NO_MEMORY;
2354 }
2355
2356 e->flags = 0;
2357 e->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME;
2358 e->time = 0; /* so far always 0 in trces. */
2359 e->forest_trust_data.top_level_name.string = talloc_steal(info,
2360 dom_info->dns_forest);
2361
2362 info->entries[0] = e;
2363
2364 if (num_suffixes > 0) {
2365 for (i = 0; i < num_suffixes ; i++) {
2366 e = talloc(info, struct lsa_ForestTrustRecord);
2367 if (e == NULL) {
2368 return NT_STATUS_NO_MEMORY;
2369 }
2370
2371 e->flags = 0;
2372 e->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME;
2373 e->time = 0; /* so far always 0 in traces. */
2374 e->forest_trust_data.top_level_name.string = upn_suffixes[i];
2375 info->entries[1 + i] = e;
2376 }
2377 }
2378
2379 e = talloc(info, struct lsa_ForestTrustRecord);
2380 if (e == NULL) {
2381 return NT_STATUS_NO_MEMORY;
2382 }
2383
2384 /* TODO: check if disabled and set flags accordingly */
2385 e->flags = 0;
2386 e->type = LSA_FOREST_TRUST_DOMAIN_INFO;
2387 e->time = 0; /* so far always 0 in traces. */
2388
2389 domain_info = &e->forest_trust_data.domain_info;
2390 domain_info->domain_sid = dom_sid_dup(info, &dom_info->sid);
2391
2392 domain_info->dns_domain_name.string = talloc_steal(info,
2393 dom_info->dns_domain);
2394 domain_info->netbios_domain_name.string = talloc_steal(info,
2395 dom_info->name);
2396
2397 info->entries[info->count - 1] = e;
2398
2399 return NT_STATUS_OK;
2400 }
2401
2402 /****************************************************************
2403 ****************************************************************/
2404
2405 WERROR _netr_DsRGetForestTrustInformation(struct pipes_struct *p,
2406 struct netr_DsRGetForestTrustInformation *r)
2407 {
2408 NTSTATUS status;
2409 struct lsa_ForestTrustInformation *info, **info_ptr;
2410
2411 if (!(p->pipe_bound && (p->auth.auth_type != DCERPC_AUTH_TYPE_NONE)
2412 && (p->auth.auth_level != DCERPC_AUTH_LEVEL_NONE))) {
2413 p->fault_state = DCERPC_FAULT_ACCESS_DENIED;
2414 return WERR_ACCESS_DENIED;
2415 }
2416
2417 if (r->in.flags & (~DS_GFTI_UPDATE_TDO)) {
2418 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2419 return WERR_INVALID_FLAGS;
2420 }
2421
2422 if ((r->in.flags & DS_GFTI_UPDATE_TDO) && (lp_server_role() != ROLE_DOMAIN_PDC)) {
2423 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2424 return WERR_NERR_NOTPRIMARY;
2425 }
2426
2427 if ((r->in.trusted_domain_name == NULL) && (r->in.flags & DS_GFTI_UPDATE_TDO)) {
2428 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2429 return WERR_INVALID_PARAMETER;
2430 }
2431
2432 /* retrieve forest trust information and stop further processing */
2433 if (r->in.trusted_domain_name == NULL) {
2434 info_ptr = talloc(p->mem_ctx, struct lsa_ForestTrustInformation *);
2435 if (info_ptr == NULL) {
2436 p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2437 return WERR_NOMEM;
2438 }
2439 info = talloc_zero(info_ptr, struct lsa_ForestTrustInformation);
2440 if (info == NULL) {
2441 p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2442 return WERR_NOMEM;
2443 }
2444
2445 /* Fill forest trust information and expand UPN suffixes list */
2446 status = fill_forest_trust_array(p->mem_ctx, info);
2447 if (!NT_STATUS_IS_OK(status)) {
2448 p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2449 return WERR_NOMEM;
2450 }
2451
2452 *info_ptr = info;
2453 r->out.forest_trust_info = info_ptr;
2454
2455 return WERR_OK;
2456
2457 }
2458
2459 /* TODO: implement remaining parts of DsrGetForestTrustInformation (opnum 43)
2460 * when trusted_domain_name is not NULL */
2461
2462 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2463 return WERR_NOT_SUPPORTED;
2464 }
2465
2466 /****************************************************************
2467 _netr_GetForestTrustInformation
2468 ****************************************************************/
2469
2470 NTSTATUS _netr_GetForestTrustInformation(struct pipes_struct *p,
2471 struct netr_GetForestTrustInformation *r)
2472 {
2473 NTSTATUS status;
2474 struct netlogon_creds_CredentialState *creds;
2475 struct lsa_ForestTrustInformation *info, **info_ptr;
2476 struct loadparm_context *lp_ctx;
2477
2478 /* TODO: check server name */
2479
2480 lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers());
2481 if (lp_ctx == NULL) {
2482 DEBUG(0, ("loadparm_init_s3 failed\n"));
2483 return NT_STATUS_INTERNAL_ERROR;
2484 }
2485
2486 status = schannel_check_creds_state(p->mem_ctx, lp_ctx,
2487 r->in.computer_name,
2488 r->in.credential,
2489 r->out.return_authenticator,
2490 &creds);
2491 talloc_unlink(p->mem_ctx, lp_ctx);
2492 if (!NT_STATUS_IS_OK(status)) {
2493 return status;
2494 }
2495
2496 if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) &&
2497 (creds->secure_channel_type != SEC_CHAN_DOMAIN)) {
2498 return NT_STATUS_NOT_IMPLEMENTED;
2499 }
2500
2501 info_ptr = talloc(p->mem_ctx, struct lsa_ForestTrustInformation *);
2502 if (!info_ptr) {
2503 return NT_STATUS_NO_MEMORY;
2504 }
2505 info = talloc_zero(info_ptr, struct lsa_ForestTrustInformation);
2506 if (!info) {
2507 return NT_STATUS_NO_MEMORY;
2508 }
2509
2510 /* Fill forest trust information, do expand UPN suffixes list */
2511 status = fill_forest_trust_array(p->mem_ctx, info);
2512 if (!NT_STATUS_IS_OK(status)) {
2513 return status;
2514 }
2515
2516 *info_ptr = info;
2517 r->out.forest_trust_info = info_ptr;
2518
2519 return NT_STATUS_OK;
2520 }
2521
2522 /****************************************************************
2523 ****************************************************************/
2524
2525 static NTSTATUS get_password_from_trustAuth(TALLOC_CTX *mem_ctx,
2526 const DATA_BLOB *trustAuth_blob,
2527 struct netlogon_creds_CredentialState *creds,
2528 struct samr_Password *current_pw_enc,
2529 struct samr_Password *previous_pw_enc)
2530 {
2531 enum ndr_err_code ndr_err;
2532 struct trustAuthInOutBlob trustAuth;
2533
2534 ndr_err = ndr_pull_struct_blob_all(trustAuth_blob, mem_ctx, &trustAuth,
2535 (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2536 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2537 return NT_STATUS_UNSUCCESSFUL;
2538 }
2539
2540
2541 if (trustAuth.count != 0 && trustAuth.current.count != 0 &&
2542 trustAuth.current.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) {
2543 mdfour(previous_pw_enc->hash,
2544 trustAuth.current.array[0].AuthInfo.clear.password,
2545 trustAuth.current.array[0].AuthInfo.clear.size);
2546 } else {
2547 return NT_STATUS_UNSUCCESSFUL;
2548 }
2549
2550 netlogon_creds_des_encrypt(creds, current_pw_enc);
2551
2552 if (trustAuth.previous.count != 0 &&
2553 trustAuth.previous.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) {
2554 mdfour(previous_pw_enc->hash,
2555 trustAuth.previous.array[0].AuthInfo.clear.password,
2556 trustAuth.previous.array[0].AuthInfo.clear.size);
2557 } else {
2558 mdfour(previous_pw_enc->hash, NULL, 0);
2559 }
2560
2561 netlogon_creds_des_encrypt(creds, previous_pw_enc);
2562
2563 return NT_STATUS_OK;
2564 }
2565
2566 /****************************************************************
2567 _netr_ServerGetTrustInfo
2568 ****************************************************************/
2569
2570 NTSTATUS _netr_ServerGetTrustInfo(struct pipes_struct *p,
2571 struct netr_ServerGetTrustInfo *r)
2572 {
2573 NTSTATUS status;
2574 struct netlogon_creds_CredentialState *creds;
2575 char *account_name;
2576 size_t account_name_last;
2577 bool trusted;
2578 struct netr_TrustInfo *trust_info;
2579 struct pdb_trusted_domain *td;
2580 DATA_BLOB trustAuth_blob;
2581 struct samr_Password *new_owf_enc;
2582 struct samr_Password *old_owf_enc;
2583 struct loadparm_context *lp_ctx;
2584
2585 lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers());
2586 if (lp_ctx == NULL) {
2587 DEBUG(0, ("loadparm_init_s3 failed\n"));
2588 return NT_STATUS_INTERNAL_ERROR;
2589 }
2590
2591 /* TODO: check server name */
2592
2593 status = schannel_check_creds_state(p->mem_ctx, lp_ctx,
2594 r->in.computer_name,
2595 r->in.credential,
2596 r->out.return_authenticator,
2597 &creds);
2598 talloc_unlink(p->mem_ctx, lp_ctx);
2599 if (!NT_STATUS_IS_OK(status)) {
2600 return status;
2601 }
2602
2603 account_name = talloc_strdup(p->mem_ctx, r->in.account_name);
2604 if (account_name == NULL) {
2605 return NT_STATUS_NO_MEMORY;
2606 }
2607
2608 account_name_last = strlen(account_name);
2609 if (account_name_last == 0) {
2610 return NT_STATUS_INVALID_PARAMETER;
2611 }
2612 account_name_last--;
2613 if (account_name[account_name_last] == '.') {
2614 account_name[account_name_last] = '\0';
2615 }
2616
2617 if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) &&
2618 (creds->secure_channel_type != SEC_CHAN_DOMAIN)) {
2619 trusted = false;
2620 } else {
2621 trusted = true;
2622 }
2623
2624
2625 if (trusted) {
2626 account_name_last = strlen(account_name);
2627 if (account_name_last == 0) {
2628 return NT_STATUS_INVALID_PARAMETER;
2629 }
2630 account_name_last--;
2631 if (account_name[account_name_last] == '$') {
2632 account_name[account_name_last] = '\0';
2633 }
2634
2635 status = pdb_get_trusted_domain(p->mem_ctx, account_name, &td);
2636 if (!NT_STATUS_IS_OK(status)) {
2637 return status;
2638 }
2639
2640 if (r->out.trust_info != NULL) {
2641 trust_info = talloc_zero(p->mem_ctx, struct netr_TrustInfo);
2642 if (trust_info == NULL) {
2643 return NT_STATUS_NO_MEMORY;
2644 }
2645 trust_info->count = 1;
2646
2647 trust_info->data = talloc_array(trust_info, uint32_t, 1);
2648 if (trust_info->data == NULL) {
2649 return NT_STATUS_NO_MEMORY;
2650 }
2651 trust_info->data[0] = td->trust_attributes;
2652
2653 *r->out.trust_info = trust_info;
2654 }
2655
2656 new_owf_enc = talloc_zero(p->mem_ctx, struct samr_Password);
2657 old_owf_enc = talloc_zero(p->mem_ctx, struct samr_Password);
2658 if (new_owf_enc == NULL || old_owf_enc == NULL) {
2659 return NT_STATUS_NO_MEMORY;
2660 }
2661
2662 /* TODO: which trustAuth shall we use if we have in/out trust or do they have to
2663 * be equal ? */
2664 if (td->trust_direction & NETR_TRUST_FLAG_INBOUND) {
2665 trustAuth_blob = td->trust_auth_incoming;
2666 } else if (td->trust_direction & NETR_TRUST_FLAG_OUTBOUND) {
2667 trustAuth_blob = td->trust_auth_outgoing;
2668 }
2669
2670 status = get_password_from_trustAuth(p->mem_ctx, &trustAuth_blob,
2671 creds,
2672 new_owf_enc, old_owf_enc);
2673
2674 if (!NT_STATUS_IS_OK(status)) {
2675 return status;
2676 }
2677
2678 r->out.new_owf_password = new_owf_enc;
2679 r->out.old_owf_password = old_owf_enc;
2680 } else {
2681 /* TODO: look for machine password */
2682 r->out.new_owf_password = NULL;
2683 r->out.old_owf_password = NULL;
2684
2685 return NT_STATUS_NOT_IMPLEMENTED;
2686 }
2687
2688 return NT_STATUS_OK;
2689 }
2690
2691 /****************************************************************
2692 ****************************************************************/
2693
2694 NTSTATUS _netr_Unused47(struct pipes_struct *p,
2695 struct netr_Unused47 *r)
2696 {
2697 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2698 return NT_STATUS_NOT_IMPLEMENTED;
2699 }
2700
2701 /****************************************************************
2702 ****************************************************************/
2703
2704 NTSTATUS _netr_DsrUpdateReadOnlyServerDnsRecords(struct pipes_struct *p,
2705 struct netr_DsrUpdateReadOnlyServerDnsRecords *r)
2706 {
2707 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2708 return NT_STATUS_NOT_IMPLEMENTED;
2709 }
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