Line data Source code
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 : extern userdom_struct current_user_info;
57 :
58 : #undef DBGC_CLASS
59 : #define DBGC_CLASS DBGC_RPC_SRV
60 :
61 : /*************************************************************************
62 : _netr_LogonControl
63 : *************************************************************************/
64 :
65 2 : WERROR _netr_LogonControl(struct pipes_struct *p,
66 : struct netr_LogonControl *r)
67 : {
68 : struct netr_LogonControl2Ex l;
69 :
70 2 : switch (r->in.level) {
71 0 : case 1:
72 0 : break;
73 2 : case 2:
74 2 : return WERR_NOT_SUPPORTED;
75 0 : default:
76 0 : return WERR_INVALID_LEVEL;
77 : }
78 :
79 0 : switch (r->in.function_code) {
80 0 : case NETLOGON_CONTROL_QUERY:
81 : case NETLOGON_CONTROL_REPLICATE:
82 : case NETLOGON_CONTROL_SYNCHRONIZE:
83 : case NETLOGON_CONTROL_PDC_REPLICATE:
84 : case NETLOGON_CONTROL_BREAKPOINT:
85 : case NETLOGON_CONTROL_BACKUP_CHANGE_LOG:
86 : case NETLOGON_CONTROL_TRUNCATE_LOG:
87 0 : break;
88 0 : default:
89 0 : return WERR_NOT_SUPPORTED;
90 : }
91 :
92 0 : l.in.logon_server = r->in.logon_server;
93 0 : l.in.function_code = r->in.function_code;
94 0 : l.in.level = r->in.level;
95 0 : l.in.data = NULL;
96 0 : l.out.query = r->out.query;
97 :
98 0 : return _netr_LogonControl2Ex(p, &l);
99 : }
100 :
101 : /*************************************************************************
102 : _netr_LogonControl2
103 : *************************************************************************/
104 :
105 0 : WERROR _netr_LogonControl2(struct pipes_struct *p,
106 : struct netr_LogonControl2 *r)
107 : {
108 : struct netr_LogonControl2Ex l;
109 :
110 0 : l.in.logon_server = r->in.logon_server;
111 0 : l.in.function_code = r->in.function_code;
112 0 : l.in.level = r->in.level;
113 0 : l.in.data = r->in.data;
114 0 : l.out.query = r->out.query;
115 :
116 0 : return _netr_LogonControl2Ex(p, &l);
117 : }
118 :
119 : /*************************************************************************
120 : *************************************************************************/
121 :
122 0 : static bool wb_change_trust_creds(const char *domain, WERROR *tc_status)
123 : {
124 : wbcErr result;
125 0 : struct wbcAuthErrorInfo *error = NULL;
126 :
127 0 : result = wbcChangeTrustCredentials(domain, &error);
128 0 : switch (result) {
129 0 : case WBC_ERR_WINBIND_NOT_AVAILABLE:
130 0 : return false;
131 0 : case WBC_ERR_DOMAIN_NOT_FOUND:
132 0 : *tc_status = WERR_NO_SUCH_DOMAIN;
133 0 : return true;
134 0 : case WBC_ERR_SUCCESS:
135 0 : *tc_status = WERR_OK;
136 0 : return true;
137 0 : default:
138 0 : break;
139 : }
140 :
141 0 : if (error && error->nt_status != 0) {
142 0 : *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status));
143 : } else {
144 0 : *tc_status = WERR_TRUST_FAILURE;
145 : }
146 0 : wbcFreeMemory(error);
147 0 : return true;
148 : }
149 :
150 : /*************************************************************************
151 : *************************************************************************/
152 :
153 0 : static bool wb_check_trust_creds(const char *domain, WERROR *tc_status)
154 : {
155 : wbcErr result;
156 0 : struct wbcAuthErrorInfo *error = NULL;
157 :
158 0 : result = wbcCheckTrustCredentials(domain, &error);
159 0 : switch (result) {
160 0 : case WBC_ERR_WINBIND_NOT_AVAILABLE:
161 0 : return false;
162 0 : case WBC_ERR_DOMAIN_NOT_FOUND:
163 0 : *tc_status = WERR_NO_SUCH_DOMAIN;
164 0 : return true;
165 0 : case WBC_ERR_SUCCESS:
166 0 : *tc_status = WERR_OK;
167 0 : return true;
168 0 : default:
169 0 : break;
170 : }
171 :
172 0 : if (error && error->nt_status != 0) {
173 0 : *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status));
174 : } else {
175 0 : *tc_status = WERR_TRUST_FAILURE;
176 : }
177 0 : wbcFreeMemory(error);
178 0 : return true;
179 : }
180 :
181 : /****************************************************************
182 : _netr_LogonControl2Ex
183 : ****************************************************************/
184 :
185 0 : WERROR _netr_LogonControl2Ex(struct pipes_struct *p,
186 : struct netr_LogonControl2Ex *r)
187 : {
188 0 : struct dcesrv_call_state *dce_call = p->dce_call;
189 0 : struct auth_session_info *session_info =
190 0 : dcesrv_call_session_info(dce_call);
191 0 : uint32_t flags = 0x0;
192 0 : WERROR pdc_connection_status = WERR_OK;
193 0 : uint32_t logon_attempts = 0x0;
194 : WERROR tc_status;
195 : fstring dc_name2;
196 0 : const char *dc_name = NULL;
197 : struct sockaddr_storage dc_ss;
198 0 : const char *domain = NULL;
199 : struct netr_NETLOGON_INFO_1 *info1;
200 : struct netr_NETLOGON_INFO_2 *info2;
201 : struct netr_NETLOGON_INFO_3 *info3;
202 : struct netr_NETLOGON_INFO_4 *info4;
203 : const char *fn;
204 : NTSTATUS status;
205 : struct netr_DsRGetDCNameInfo *dc_info;
206 :
207 0 : switch (dce_call->pkt.u.request.opnum) {
208 0 : case NDR_NETR_LOGONCONTROL:
209 0 : fn = "_netr_LogonControl";
210 0 : break;
211 0 : case NDR_NETR_LOGONCONTROL2:
212 0 : fn = "_netr_LogonControl2";
213 0 : break;
214 0 : case NDR_NETR_LOGONCONTROL2EX:
215 0 : fn = "_netr_LogonControl2Ex";
216 0 : break;
217 0 : default:
218 0 : return WERR_INVALID_PARAMETER;
219 : }
220 :
221 0 : switch (r->in.level) {
222 0 : case 1:
223 : case 2:
224 : case 3:
225 : case 4:
226 0 : break;
227 0 : default:
228 0 : return WERR_INVALID_LEVEL;
229 : }
230 :
231 0 : switch (r->in.function_code) {
232 0 : case NETLOGON_CONTROL_QUERY:
233 0 : break;
234 0 : default:
235 0 : if ((geteuid() != sec_initial_uid()) &&
236 0 : !nt_token_check_domain_rid(
237 0 : session_info->security_token, DOMAIN_RID_ADMINS) &&
238 0 : !nt_token_check_sid(
239 : &global_sid_Builtin_Administrators,
240 0 : session_info->security_token))
241 : {
242 0 : return WERR_ACCESS_DENIED;
243 : }
244 0 : break;
245 : }
246 :
247 0 : tc_status = WERR_NO_SUCH_DOMAIN;
248 :
249 0 : switch (r->in.function_code) {
250 0 : case NETLOGON_CONTROL_QUERY:
251 0 : switch (r->in.level) {
252 0 : case 1:
253 : case 3:
254 0 : break;
255 0 : default:
256 0 : return WERR_INVALID_PARAMETER;
257 : }
258 :
259 0 : tc_status = WERR_OK;
260 0 : break;
261 0 : case NETLOGON_CONTROL_REPLICATE:
262 : case NETLOGON_CONTROL_SYNCHRONIZE:
263 : case NETLOGON_CONTROL_PDC_REPLICATE:
264 : case NETLOGON_CONTROL_BACKUP_CHANGE_LOG:
265 : case NETLOGON_CONTROL_BREAKPOINT:
266 : case NETLOGON_CONTROL_TRUNCATE_LOG:
267 : case NETLOGON_CONTROL_TRANSPORT_NOTIFY:
268 : case NETLOGON_CONTROL_FORCE_DNS_REG:
269 : case NETLOGON_CONTROL_QUERY_DNS_REG:
270 0 : return WERR_NOT_SUPPORTED;
271 :
272 0 : case NETLOGON_CONTROL_FIND_USER:
273 0 : if (!r->in.data || !r->in.data->user) {
274 0 : return WERR_NOT_SUPPORTED;
275 : }
276 0 : break;
277 0 : case NETLOGON_CONTROL_SET_DBFLAG:
278 0 : if (!r->in.data) {
279 0 : return WERR_NOT_SUPPORTED;
280 : }
281 0 : break;
282 0 : case NETLOGON_CONTROL_TC_VERIFY:
283 0 : if (!r->in.data || !r->in.data->domain) {
284 0 : return WERR_NOT_SUPPORTED;
285 : }
286 :
287 0 : if (!wb_check_trust_creds(r->in.data->domain, &tc_status)) {
288 0 : return WERR_NOT_SUPPORTED;
289 : }
290 0 : break;
291 0 : case NETLOGON_CONTROL_TC_QUERY:
292 0 : if (!r->in.data || !r->in.data->domain) {
293 0 : return WERR_NOT_SUPPORTED;
294 : }
295 :
296 0 : domain = r->in.data->domain;
297 :
298 0 : if (!is_trusted_domain(domain)) {
299 0 : break;
300 : }
301 :
302 0 : if (!get_dc_name(domain, NULL, dc_name2, &dc_ss)) {
303 0 : tc_status = WERR_NO_LOGON_SERVERS;
304 0 : break;
305 : }
306 :
307 0 : dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2);
308 0 : if (!dc_name) {
309 0 : return WERR_NOT_ENOUGH_MEMORY;
310 : }
311 :
312 0 : tc_status = WERR_OK;
313 :
314 0 : break;
315 :
316 0 : case NETLOGON_CONTROL_REDISCOVER:
317 0 : if (!r->in.data || !r->in.data->domain) {
318 0 : return WERR_NOT_SUPPORTED;
319 : }
320 :
321 0 : domain = r->in.data->domain;
322 :
323 0 : if (!is_trusted_domain(domain)) {
324 0 : break;
325 : }
326 :
327 0 : status = dsgetdcname(p->mem_ctx, p->msg_ctx, domain, NULL, NULL,
328 : DS_FORCE_REDISCOVERY | DS_RETURN_FLAT_NAME,
329 : &dc_info);
330 0 : if (!NT_STATUS_IS_OK(status)) {
331 0 : tc_status = WERR_NO_LOGON_SERVERS;
332 0 : break;
333 : }
334 :
335 0 : dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_info->dc_unc);
336 0 : if (!dc_name) {
337 0 : return WERR_NOT_ENOUGH_MEMORY;
338 : }
339 :
340 0 : tc_status = WERR_OK;
341 :
342 0 : break;
343 :
344 0 : case NETLOGON_CONTROL_CHANGE_PASSWORD:
345 0 : if (!r->in.data || !r->in.data->domain) {
346 0 : return WERR_NOT_SUPPORTED;
347 : }
348 :
349 0 : if (!wb_change_trust_creds(r->in.data->domain, &tc_status)) {
350 0 : return WERR_NOT_SUPPORTED;
351 : }
352 0 : break;
353 :
354 0 : default:
355 : /* no idea what this should be */
356 0 : DEBUG(0,("%s: unimplemented function level [%d]\n",
357 : fn, r->in.function_code));
358 0 : return WERR_NOT_SUPPORTED;
359 : }
360 :
361 : /* prepare the response */
362 :
363 0 : switch (r->in.level) {
364 0 : case 1:
365 0 : info1 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_1);
366 0 : W_ERROR_HAVE_NO_MEMORY(info1);
367 :
368 0 : info1->flags = flags;
369 0 : info1->pdc_connection_status = pdc_connection_status;
370 :
371 0 : r->out.query->info1 = info1;
372 0 : break;
373 0 : case 2:
374 0 : info2 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_2);
375 0 : W_ERROR_HAVE_NO_MEMORY(info2);
376 :
377 0 : info2->flags = flags;
378 0 : info2->pdc_connection_status = pdc_connection_status;
379 0 : info2->trusted_dc_name = dc_name;
380 0 : info2->tc_connection_status = tc_status;
381 :
382 0 : r->out.query->info2 = info2;
383 0 : break;
384 0 : case 3:
385 0 : info3 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_3);
386 0 : W_ERROR_HAVE_NO_MEMORY(info3);
387 :
388 0 : info3->flags = flags;
389 0 : info3->logon_attempts = logon_attempts;
390 :
391 0 : r->out.query->info3 = info3;
392 0 : break;
393 0 : case 4:
394 0 : info4 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_4);
395 0 : W_ERROR_HAVE_NO_MEMORY(info4);
396 :
397 0 : info4->trusted_dc_name = dc_name;
398 0 : info4->trusted_domain_name = r->in.data->domain;
399 :
400 0 : r->out.query->info4 = info4;
401 0 : break;
402 0 : default:
403 0 : return WERR_INVALID_LEVEL;
404 : }
405 :
406 0 : return WERR_OK;
407 : }
408 :
409 : /*************************************************************************
410 : _netr_NetrEnumerateTrustedDomains
411 : *************************************************************************/
412 :
413 0 : NTSTATUS _netr_NetrEnumerateTrustedDomains(struct pipes_struct *p,
414 : struct netr_NetrEnumerateTrustedDomains *r)
415 : {
416 0 : struct dcesrv_call_state *dce_call = p->dce_call;
417 0 : struct dcesrv_connection *dcesrv_conn = dce_call->conn;
418 0 : const struct tsocket_address *local_address =
419 0 : dcesrv_connection_get_local_address(dcesrv_conn);
420 0 : const struct tsocket_address *remote_address =
421 0 : dcesrv_connection_get_remote_address(dcesrv_conn);
422 0 : struct auth_session_info *session_info =
423 0 : dcesrv_call_session_info(dce_call);
424 : NTSTATUS status;
425 0 : NTSTATUS result = NT_STATUS_OK;
426 : DATA_BLOB blob;
427 0 : size_t num_domains = 0;
428 0 : const char **trusted_domains = NULL;
429 : struct lsa_DomainList domain_list;
430 0 : struct dcerpc_binding_handle *h = NULL;
431 : struct policy_handle pol;
432 0 : uint32_t enum_ctx = 0;
433 0 : uint32_t max_size = (uint32_t)-1;
434 :
435 0 : ZERO_STRUCT(pol);
436 0 : DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
437 :
438 0 : status = rpcint_binding_handle(p->mem_ctx,
439 : &ndr_table_lsarpc,
440 : remote_address,
441 : local_address,
442 : session_info,
443 : p->msg_ctx,
444 : &h);
445 0 : if (!NT_STATUS_IS_OK(status)) {
446 0 : return status;
447 : }
448 :
449 0 : status = dcerpc_lsa_open_policy2(h,
450 : p->mem_ctx,
451 : NULL,
452 : true,
453 : LSA_POLICY_VIEW_LOCAL_INFORMATION,
454 : &pol,
455 : &result);
456 0 : if (any_nt_status_not_ok(status, result, &status)) {
457 0 : goto out;
458 : }
459 :
460 : do {
461 : uint32_t i;
462 :
463 : /* Lookup list of trusted domains */
464 0 : status = dcerpc_lsa_EnumTrustDom(h,
465 : p->mem_ctx,
466 : &pol,
467 : &enum_ctx,
468 : &domain_list,
469 : max_size,
470 : &result);
471 0 : if (!NT_STATUS_IS_OK(status)) {
472 0 : goto out;
473 : }
474 0 : if (!NT_STATUS_IS_OK(result) &&
475 0 : !NT_STATUS_EQUAL(result, NT_STATUS_NO_MORE_ENTRIES) &&
476 0 : !NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) {
477 0 : status = result;
478 0 : goto out;
479 : }
480 :
481 0 : for (i = 0; i < domain_list.count; i++) {
482 0 : if (!add_string_to_array(p->mem_ctx, domain_list.domains[i].name.string,
483 : &trusted_domains, &num_domains)) {
484 0 : status = NT_STATUS_NO_MEMORY;
485 0 : goto out;
486 : }
487 : }
488 0 : } while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES));
489 :
490 0 : if (num_domains > 0) {
491 : /* multi sz terminate */
492 0 : trusted_domains = talloc_realloc(p->mem_ctx, trusted_domains, const char *, num_domains + 1);
493 0 : if (trusted_domains == NULL) {
494 0 : status = NT_STATUS_NO_MEMORY;
495 0 : goto out;
496 : }
497 :
498 0 : trusted_domains[num_domains] = NULL;
499 : }
500 :
501 0 : if (!push_reg_multi_sz(trusted_domains, &blob, trusted_domains)) {
502 0 : TALLOC_FREE(trusted_domains);
503 0 : status = NT_STATUS_NO_MEMORY;
504 0 : goto out;
505 : }
506 :
507 0 : r->out.trusted_domains_blob->data = blob.data;
508 0 : r->out.trusted_domains_blob->length = blob.length;
509 :
510 0 : DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
511 :
512 0 : status = NT_STATUS_OK;
513 :
514 0 : out:
515 0 : if (is_valid_policy_hnd(&pol)) {
516 0 : dcerpc_lsa_Close(h, p->mem_ctx, &pol, &result);
517 : }
518 :
519 0 : return status;
520 : }
521 :
522 : /*************************************************************************
523 : *************************************************************************/
524 :
525 10 : static NTSTATUS samr_find_machine_account(TALLOC_CTX *mem_ctx,
526 : struct dcerpc_binding_handle *b,
527 : const char *account_name,
528 : uint32_t access_mask,
529 : struct dom_sid2 **domain_sid_p,
530 : uint32_t *user_rid_p,
531 : struct policy_handle *user_handle)
532 : {
533 : NTSTATUS status;
534 10 : NTSTATUS result = NT_STATUS_OK;
535 : struct policy_handle connect_handle;
536 10 : struct policy_handle domain_handle = { 0, };
537 : struct lsa_String domain_name;
538 : struct dom_sid2 *domain_sid;
539 : struct lsa_String names;
540 : struct samr_Ids rids;
541 : struct samr_Ids types;
542 : uint32_t rid;
543 :
544 10 : status = dcerpc_samr_Connect2(b, mem_ctx,
545 : lp_netbios_name(),
546 : SAMR_ACCESS_CONNECT_TO_SERVER |
547 : SAMR_ACCESS_ENUM_DOMAINS |
548 : SAMR_ACCESS_LOOKUP_DOMAIN,
549 : &connect_handle,
550 : &result);
551 10 : if (any_nt_status_not_ok(status, result, &status)) {
552 0 : goto out;
553 : }
554 :
555 10 : init_lsa_String(&domain_name, get_global_sam_name());
556 :
557 10 : status = dcerpc_samr_LookupDomain(b, mem_ctx,
558 : &connect_handle,
559 : &domain_name,
560 : &domain_sid,
561 : &result);
562 10 : if (any_nt_status_not_ok(status, result, &status)) {
563 0 : goto out;
564 : }
565 :
566 10 : status = dcerpc_samr_OpenDomain(b, mem_ctx,
567 : &connect_handle,
568 : SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
569 : domain_sid,
570 : &domain_handle,
571 : &result);
572 10 : if (any_nt_status_not_ok(status, result, &status)) {
573 0 : goto out;
574 : }
575 :
576 10 : init_lsa_String(&names, account_name);
577 :
578 10 : status = dcerpc_samr_LookupNames(b, mem_ctx,
579 : &domain_handle,
580 : 1,
581 : &names,
582 : &rids,
583 : &types,
584 : &result);
585 10 : if (any_nt_status_not_ok(status, result, &status)) {
586 2 : goto out;
587 : }
588 :
589 8 : if (rids.count != 1) {
590 0 : status = NT_STATUS_NO_SUCH_USER;
591 0 : goto out;
592 : }
593 8 : if (types.count != 1) {
594 0 : status = NT_STATUS_INVALID_PARAMETER;
595 0 : goto out;
596 : }
597 8 : if (types.ids[0] != SID_NAME_USER) {
598 0 : status = NT_STATUS_NO_SUCH_USER;
599 0 : goto out;
600 : }
601 :
602 8 : rid = rids.ids[0];
603 :
604 8 : status = dcerpc_samr_OpenUser(b, mem_ctx,
605 : &domain_handle,
606 : access_mask,
607 : rid,
608 : user_handle,
609 : &result);
610 8 : if (any_nt_status_not_ok(status, result, &status)) {
611 0 : goto out;
612 : }
613 :
614 8 : if (user_rid_p) {
615 8 : *user_rid_p = rid;
616 : }
617 :
618 8 : if (domain_sid_p) {
619 8 : *domain_sid_p = domain_sid;
620 : }
621 :
622 10 : out:
623 10 : if (is_valid_policy_hnd(&domain_handle)) {
624 10 : dcerpc_samr_Close(b, mem_ctx, &domain_handle, &result);
625 : }
626 10 : if (is_valid_policy_hnd(&connect_handle)) {
627 10 : dcerpc_samr_Close(b, mem_ctx, &connect_handle, &result);
628 : }
629 :
630 10 : return status;
631 : }
632 :
633 : /******************************************************************
634 : gets a machine password entry. checks access rights of the host.
635 : ******************************************************************/
636 :
637 10 : static NTSTATUS get_md4pw(struct samr_Password *md4pw, const char *mach_acct,
638 : enum netr_SchannelType sec_chan_type,
639 : struct dom_sid *sid,
640 : struct messaging_context *msg_ctx)
641 : {
642 : NTSTATUS status;
643 10 : NTSTATUS result = NT_STATUS_OK;
644 10 : TALLOC_CTX *mem_ctx = NULL;
645 10 : struct dcerpc_binding_handle *h = NULL;
646 10 : struct tsocket_address *local = NULL;
647 10 : struct policy_handle user_handle = { .handle_type = 0 };
648 10 : uint32_t user_rid = UINT32_MAX;
649 10 : struct dom_sid *domain_sid = NULL;
650 10 : uint32_t acct_ctrl = 0;
651 10 : union samr_UserInfo *info = NULL;
652 10 : struct auth_session_info *session_info = NULL;
653 : int rc;
654 :
655 : #if 0
656 :
657 : /*
658 : * Currently this code is redundant as we already have a filter
659 : * by hostname list. What this code really needs to do is to
660 : * get a hosts allowed/hosts denied list from the SAM database
661 : * on a per user basis, and make the access decision there.
662 : * I will leave this code here for now as a reminder to implement
663 : * this at a later date. JRA.
664 : */
665 :
666 : if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(),
667 : p->client_id.name,
668 : p->client_id.addr)) {
669 : DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct));
670 : return False;
671 : }
672 : #endif /* 0 */
673 :
674 10 : mem_ctx = talloc_stackframe();
675 :
676 10 : status = make_session_info_system(mem_ctx, &session_info);
677 10 : if (!NT_STATUS_IS_OK(status)) {
678 0 : goto out;
679 : }
680 :
681 10 : ZERO_STRUCT(user_handle);
682 :
683 10 : rc = tsocket_address_inet_from_strings(mem_ctx,
684 : "ip",
685 : "127.0.0.1",
686 : 0,
687 : &local);
688 10 : if (rc < 0) {
689 0 : status = NT_STATUS_NO_MEMORY;
690 0 : goto out;
691 : }
692 :
693 10 : status = rpcint_binding_handle(mem_ctx,
694 : &ndr_table_samr,
695 : local,
696 : NULL,
697 : session_info,
698 : msg_ctx,
699 : &h);
700 10 : if (!NT_STATUS_IS_OK(status)) {
701 0 : goto out;
702 : }
703 :
704 10 : status = samr_find_machine_account(mem_ctx, h, mach_acct,
705 : SEC_FLAG_MAXIMUM_ALLOWED,
706 : &domain_sid, &user_rid,
707 : &user_handle);
708 10 : if (!NT_STATUS_IS_OK(status)) {
709 2 : goto out;
710 : }
711 :
712 8 : status = dcerpc_samr_QueryUserInfo2(h,
713 : mem_ctx,
714 : &user_handle,
715 : UserControlInformation,
716 : &info,
717 : &result);
718 8 : if (any_nt_status_not_ok(status, result, &status)) {
719 0 : goto out;
720 : }
721 :
722 8 : acct_ctrl = info->info16.acct_flags;
723 :
724 8 : if (acct_ctrl & ACB_DISABLED) {
725 0 : DEBUG(0,("get_md4pw: Workstation %s: account is disabled\n", mach_acct));
726 0 : status = NT_STATUS_ACCOUNT_DISABLED;
727 0 : goto out;
728 : }
729 :
730 16 : if (!(acct_ctrl & ACB_SVRTRUST) &&
731 8 : !(acct_ctrl & ACB_WSTRUST) &&
732 0 : !(acct_ctrl & ACB_DOMTRUST))
733 : {
734 0 : DEBUG(0,("get_md4pw: Workstation %s: account is not a trust account\n", mach_acct));
735 0 : status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
736 0 : goto out;
737 : }
738 :
739 8 : switch (sec_chan_type) {
740 0 : case SEC_CHAN_BDC:
741 0 : if (!(acct_ctrl & ACB_SVRTRUST)) {
742 0 : DEBUG(0,("get_md4pw: Workstation %s: BDC secure channel requested "
743 : "but not a server trust account\n", mach_acct));
744 0 : status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
745 0 : goto out;
746 : }
747 0 : break;
748 8 : case SEC_CHAN_WKSTA:
749 8 : if (!(acct_ctrl & ACB_WSTRUST)) {
750 0 : DEBUG(0,("get_md4pw: Workstation %s: WORKSTATION secure channel requested "
751 : "but not a workstation trust account\n", mach_acct));
752 0 : status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
753 0 : goto out;
754 : }
755 8 : break;
756 0 : case SEC_CHAN_DOMAIN:
757 0 : if (!(acct_ctrl & ACB_DOMTRUST)) {
758 0 : DEBUG(0,("get_md4pw: Workstation %s: DOMAIN secure channel requested "
759 : "but not a interdomain trust account\n", mach_acct));
760 0 : status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
761 0 : goto out;
762 : }
763 0 : break;
764 0 : default:
765 0 : break;
766 : }
767 :
768 8 : become_root();
769 8 : status = dcerpc_samr_QueryUserInfo2(h,
770 : mem_ctx,
771 : &user_handle,
772 : UserInternal1Information,
773 : &info,
774 : &result);
775 8 : unbecome_root();
776 8 : if (any_nt_status_not_ok(status, result, &status)) {
777 0 : goto out;
778 : }
779 :
780 8 : if (info->info18.nt_pwd_active == 0) {
781 0 : DEBUG(0,("get_md4pw: Workstation %s: account does not have a password\n", mach_acct));
782 0 : status = NT_STATUS_LOGON_FAILURE;
783 0 : goto out;
784 : }
785 :
786 : /* samr gives out nthash unencrypted (!) */
787 8 : memcpy(md4pw->hash, info->info18.nt_pwd.hash, 16);
788 :
789 8 : sid_compose(sid, domain_sid, user_rid);
790 :
791 10 : out:
792 10 : if (h && is_valid_policy_hnd(&user_handle)) {
793 8 : dcerpc_samr_Close(h, mem_ctx, &user_handle, &result);
794 : }
795 :
796 10 : talloc_free(mem_ctx);
797 :
798 10 : return status;
799 : }
800 :
801 : /*************************************************************************
802 : _netr_ServerReqChallenge
803 : *************************************************************************/
804 :
805 10 : NTSTATUS _netr_ServerReqChallenge(struct pipes_struct *p,
806 : struct netr_ServerReqChallenge *r)
807 : {
808 10 : struct dcesrv_call_state *dce_call = p->dce_call;
809 10 : struct netlogon_server_pipe_state *pipe_state = NULL;
810 : NTSTATUS status;
811 :
812 10 : pipe_state = dcesrv_iface_state_find_conn(
813 : dce_call,
814 : NETLOGON_SERVER_PIPE_STATE_MAGIC,
815 : struct netlogon_server_pipe_state);
816 :
817 10 : if (pipe_state) {
818 4 : DEBUG(10,("_netr_ServerReqChallenge: new challenge requested. Clearing old state.\n"));
819 4 : talloc_free(pipe_state);
820 : }
821 :
822 10 : pipe_state = talloc(p->mem_ctx, struct netlogon_server_pipe_state);
823 10 : NT_STATUS_HAVE_NO_MEMORY(pipe_state);
824 :
825 10 : pipe_state->client_challenge = *r->in.credentials;
826 :
827 10 : netlogon_creds_random_challenge(&pipe_state->server_challenge);
828 :
829 10 : *r->out.return_credentials = pipe_state->server_challenge;
830 :
831 10 : status = dcesrv_iface_state_store_conn(
832 : dce_call,
833 : NETLOGON_SERVER_PIPE_STATE_MAGIC,
834 : pipe_state);
835 10 : if (!NT_STATUS_IS_OK(status)) {
836 0 : return status;
837 : }
838 :
839 10 : return NT_STATUS_OK;
840 : }
841 :
842 : /*************************************************************************
843 : _netr_ServerAuthenticate
844 : Create the initial credentials.
845 : *************************************************************************/
846 :
847 0 : NTSTATUS _netr_ServerAuthenticate(struct pipes_struct *p,
848 : struct netr_ServerAuthenticate *r)
849 : {
850 : struct netr_ServerAuthenticate3 a;
851 0 : uint32_t negotiate_flags = 0;
852 : uint32_t rid;
853 :
854 0 : a.in.server_name = r->in.server_name;
855 0 : a.in.account_name = r->in.account_name;
856 0 : a.in.secure_channel_type = r->in.secure_channel_type;
857 0 : a.in.computer_name = r->in.computer_name;
858 0 : a.in.credentials = r->in.credentials;
859 0 : a.in.negotiate_flags = &negotiate_flags;
860 :
861 0 : a.out.return_credentials = r->out.return_credentials;
862 0 : a.out.rid = &rid;
863 0 : a.out.negotiate_flags = &negotiate_flags;
864 :
865 0 : return _netr_ServerAuthenticate3(p, &a);
866 :
867 : }
868 :
869 : /*************************************************************************
870 : _netr_ServerAuthenticate3
871 : *************************************************************************/
872 :
873 10 : NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
874 : struct netr_ServerAuthenticate3 *r)
875 : {
876 10 : struct dcesrv_call_state *dce_call = p->dce_call;
877 : NTSTATUS status;
878 : uint32_t srv_flgs;
879 : /* r->in.negotiate_flags is an aliased pointer to r->out.negotiate_flags,
880 : * so use a copy to avoid destroying the client values. */
881 10 : uint32_t in_neg_flags = *r->in.negotiate_flags;
882 : const char *fn;
883 10 : struct loadparm_context *lp_ctx = p->dce_call->conn->dce_ctx->lp_ctx;
884 : struct dom_sid sid;
885 : struct samr_Password mach_pwd;
886 : struct netlogon_creds_CredentialState *creds;
887 10 : struct netlogon_server_pipe_state *pipe_state = NULL;
888 :
889 : /* According to Microsoft (see bugid #6099)
890 : * Windows 7 looks at the negotiate_flags
891 : * returned in this structure *even if the
892 : * call fails with access denied* ! So in order
893 : * to allow Win7 to connect to a Samba NT style
894 : * PDC we set the flags before we know if it's
895 : * an error or not.
896 : */
897 :
898 : /* 0x000001ff */
899 10 : srv_flgs = NETLOGON_NEG_ACCOUNT_LOCKOUT |
900 : NETLOGON_NEG_PERSISTENT_SAMREPL |
901 : NETLOGON_NEG_ARCFOUR |
902 : NETLOGON_NEG_PROMOTION_COUNT |
903 : NETLOGON_NEG_CHANGELOG_BDC |
904 : NETLOGON_NEG_FULL_SYNC_REPL |
905 : NETLOGON_NEG_MULTIPLE_SIDS |
906 : NETLOGON_NEG_REDO |
907 : NETLOGON_NEG_PASSWORD_CHANGE_REFUSAL |
908 : NETLOGON_NEG_PASSWORD_SET2;
909 :
910 : /* Ensure we support strong (128-bit) keys. */
911 10 : if (in_neg_flags & NETLOGON_NEG_STRONG_KEYS) {
912 10 : srv_flgs |= NETLOGON_NEG_STRONG_KEYS;
913 : }
914 :
915 10 : if (in_neg_flags & NETLOGON_NEG_SUPPORTS_AES) {
916 10 : srv_flgs |= NETLOGON_NEG_SUPPORTS_AES;
917 : }
918 :
919 10 : if (in_neg_flags & NETLOGON_NEG_SCHANNEL) {
920 10 : srv_flgs |= NETLOGON_NEG_SCHANNEL;
921 : }
922 :
923 : /*
924 : * Support authenticaten of trusted domains.
925 : *
926 : * These flags are the minimum required set which works with win2k3
927 : * and win2k8.
928 : */
929 10 : if (pdb_capabilities() & PDB_CAP_TRUSTED_DOMAINS_EX) {
930 0 : srv_flgs |= NETLOGON_NEG_TRANSITIVE_TRUSTS |
931 : NETLOGON_NEG_DNS_DOMAIN_TRUSTS |
932 : NETLOGON_NEG_CROSS_FOREST_TRUSTS |
933 : NETLOGON_NEG_NEUTRALIZE_NT4_EMULATION;
934 : }
935 :
936 : /*
937 : * If weak cryto is disabled, do not announce that we support RC4.
938 : */
939 10 : if (lp_weak_crypto() == SAMBA_WEAK_CRYPTO_DISALLOWED) {
940 0 : srv_flgs &= ~NETLOGON_NEG_ARCFOUR;
941 : }
942 :
943 10 : switch (dce_call->pkt.u.request.opnum) {
944 0 : case NDR_NETR_SERVERAUTHENTICATE:
945 0 : fn = "_netr_ServerAuthenticate";
946 0 : break;
947 0 : case NDR_NETR_SERVERAUTHENTICATE2:
948 0 : fn = "_netr_ServerAuthenticate2";
949 0 : break;
950 10 : case NDR_NETR_SERVERAUTHENTICATE3:
951 10 : fn = "_netr_ServerAuthenticate3";
952 10 : break;
953 0 : default:
954 0 : return NT_STATUS_INTERNAL_ERROR;
955 : }
956 :
957 : /* We use this as the key to store the creds: */
958 : /* r->in.computer_name */
959 :
960 10 : pipe_state = dcesrv_iface_state_find_conn(
961 : dce_call,
962 : NETLOGON_SERVER_PIPE_STATE_MAGIC,
963 : struct netlogon_server_pipe_state);
964 :
965 10 : if (!pipe_state) {
966 0 : DEBUG(0,("%s: no challenge sent to client %s\n", fn,
967 : r->in.computer_name));
968 0 : status = NT_STATUS_ACCESS_DENIED;
969 0 : goto out;
970 : }
971 :
972 10 : status = get_md4pw(&mach_pwd,
973 : r->in.account_name,
974 : r->in.secure_channel_type,
975 : &sid, p->msg_ctx);
976 10 : if (!NT_STATUS_IS_OK(status)) {
977 2 : DEBUG(0,("%s: failed to get machine password for "
978 : "account %s: %s\n",
979 : fn, r->in.account_name, nt_errstr(status) ));
980 : /* always return NT_STATUS_ACCESS_DENIED */
981 2 : status = NT_STATUS_ACCESS_DENIED;
982 2 : goto out;
983 : }
984 :
985 : /* From the client / server challenges and md4 password, generate sess key */
986 : /* Check client credentials are valid. */
987 16 : creds = netlogon_creds_server_init(p->mem_ctx,
988 : r->in.account_name,
989 : r->in.computer_name,
990 8 : r->in.secure_channel_type,
991 8 : &pipe_state->client_challenge,
992 8 : &pipe_state->server_challenge,
993 : &mach_pwd,
994 8 : r->in.credentials,
995 : r->out.return_credentials,
996 : srv_flgs);
997 8 : if (!creds) {
998 0 : DEBUG(0,("%s: netlogon_creds_server_check failed. Rejecting auth "
999 : "request from client %s machine account %s\n",
1000 : fn, r->in.computer_name,
1001 : r->in.account_name));
1002 0 : status = NT_STATUS_ACCESS_DENIED;
1003 0 : goto out;
1004 : }
1005 :
1006 8 : creds->sid = dom_sid_dup(creds, &sid);
1007 8 : if (!creds->sid) {
1008 0 : status = NT_STATUS_NO_MEMORY;
1009 0 : goto out;
1010 : }
1011 :
1012 : /* Store off the state so we can continue after client disconnect. */
1013 8 : become_root();
1014 8 : status = schannel_save_creds_state(p->mem_ctx, lp_ctx, creds);
1015 8 : unbecome_root();
1016 :
1017 8 : if (!NT_STATUS_IS_OK(status)) {
1018 0 : ZERO_STRUCTP(r->out.return_credentials);
1019 0 : goto out;
1020 : }
1021 :
1022 8 : sid_peek_rid(&sid, r->out.rid);
1023 :
1024 8 : status = NT_STATUS_OK;
1025 :
1026 10 : out:
1027 :
1028 10 : *r->out.negotiate_flags = srv_flgs;
1029 10 : return status;
1030 : }
1031 :
1032 : /*************************************************************************
1033 : _netr_ServerAuthenticate2
1034 : *************************************************************************/
1035 :
1036 0 : NTSTATUS _netr_ServerAuthenticate2(struct pipes_struct *p,
1037 : struct netr_ServerAuthenticate2 *r)
1038 : {
1039 : struct netr_ServerAuthenticate3 a;
1040 : uint32_t rid;
1041 :
1042 0 : a.in.server_name = r->in.server_name;
1043 0 : a.in.account_name = r->in.account_name;
1044 0 : a.in.secure_channel_type = r->in.secure_channel_type;
1045 0 : a.in.computer_name = r->in.computer_name;
1046 0 : a.in.credentials = r->in.credentials;
1047 0 : a.in.negotiate_flags = r->in.negotiate_flags;
1048 :
1049 0 : a.out.return_credentials = r->out.return_credentials;
1050 0 : a.out.rid = &rid;
1051 0 : a.out.negotiate_flags = r->out.negotiate_flags;
1052 :
1053 0 : return _netr_ServerAuthenticate3(p, &a);
1054 : }
1055 :
1056 : /*************************************************************************
1057 : *************************************************************************/
1058 :
1059 2 : static NTSTATUS samr_open_machine_account(
1060 : struct dcerpc_binding_handle *b,
1061 : const struct dom_sid *machine_sid,
1062 : uint32_t access_mask,
1063 : struct policy_handle *machine_handle)
1064 : {
1065 2 : TALLOC_CTX *frame = talloc_stackframe();
1066 2 : struct policy_handle connect_handle = { .handle_type = 0 };
1067 2 : struct policy_handle domain_handle = { .handle_type = 0 };
1068 2 : struct dom_sid domain_sid = *machine_sid;
1069 : uint32_t machine_rid;
1070 2 : NTSTATUS result = NT_STATUS_OK;
1071 2 : NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
1072 : bool ok;
1073 :
1074 2 : ok = sid_split_rid(&domain_sid, &machine_rid);
1075 2 : if (!ok) {
1076 0 : goto out;
1077 : }
1078 :
1079 2 : status = dcerpc_samr_Connect2(
1080 : b,
1081 : frame,
1082 : lp_netbios_name(),
1083 : SAMR_ACCESS_CONNECT_TO_SERVER |
1084 : SAMR_ACCESS_ENUM_DOMAINS |
1085 : SAMR_ACCESS_LOOKUP_DOMAIN,
1086 : &connect_handle,
1087 : &result);
1088 2 : if (any_nt_status_not_ok(status, result, &status)) {
1089 0 : goto out;
1090 : }
1091 :
1092 2 : status = dcerpc_samr_OpenDomain(
1093 : b,
1094 : frame,
1095 : &connect_handle,
1096 : SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
1097 : &domain_sid,
1098 : &domain_handle,
1099 : &result);
1100 2 : if (any_nt_status_not_ok(status, result, &status)) {
1101 0 : goto out;
1102 : }
1103 :
1104 2 : status = dcerpc_samr_OpenUser(
1105 : b,
1106 : frame,
1107 : &domain_handle,
1108 : SEC_FLAG_MAXIMUM_ALLOWED,
1109 : machine_rid,
1110 : machine_handle,
1111 : &result);
1112 2 : if (any_nt_status_not_ok(status, result, &status)) {
1113 0 : goto out;
1114 : }
1115 :
1116 4 : out:
1117 2 : if ((b != NULL) && is_valid_policy_hnd(&domain_handle)) {
1118 2 : dcerpc_samr_Close(b, frame, &domain_handle, &result);
1119 : }
1120 2 : if ((b != NULL) && is_valid_policy_hnd(&connect_handle)) {
1121 2 : dcerpc_samr_Close(b, frame, &connect_handle, &result);
1122 : }
1123 2 : TALLOC_FREE(frame);
1124 2 : return status;
1125 : }
1126 :
1127 : struct _samr_Credentials_t {
1128 : enum {
1129 : CRED_TYPE_NT_HASH,
1130 : CRED_TYPE_PLAIN_TEXT,
1131 : } cred_type;
1132 : union {
1133 : struct samr_Password *nt_hash;
1134 : const char *password;
1135 : } creds;
1136 : };
1137 :
1138 :
1139 2 : static NTSTATUS netr_set_machine_account_password(
1140 : TALLOC_CTX *mem_ctx,
1141 : struct auth_session_info *session_info,
1142 : struct messaging_context *msg_ctx,
1143 : const struct dom_sid *machine_sid,
1144 : struct _samr_Credentials_t *cr)
1145 : {
1146 : NTSTATUS status;
1147 2 : NTSTATUS result = NT_STATUS_OK;
1148 2 : struct dcerpc_binding_handle *h = NULL;
1149 : struct tsocket_address *local;
1150 2 : struct policy_handle user_handle = { .handle_type = 0 };
1151 : uint32_t acct_ctrl;
1152 : union samr_UserInfo *info;
1153 : struct samr_UserInfo18 info18;
1154 : struct samr_UserInfo26 info26;
1155 : DATA_BLOB in,out;
1156 : int rc;
1157 : DATA_BLOB session_key;
1158 : enum samr_UserInfoLevel infolevel;
1159 2 : TALLOC_CTX *frame = talloc_stackframe();
1160 :
1161 2 : status = session_extract_session_key(session_info,
1162 : &session_key,
1163 : KEY_USE_16BYTES);
1164 2 : if (!NT_STATUS_IS_OK(status)) {
1165 0 : goto out;
1166 : }
1167 :
1168 2 : rc = tsocket_address_inet_from_strings(frame,
1169 : "ip",
1170 : "127.0.0.1",
1171 : 0,
1172 : &local);
1173 2 : if (rc < 0) {
1174 0 : status = NT_STATUS_NO_MEMORY;
1175 0 : goto out;
1176 : }
1177 :
1178 2 : status = rpcint_binding_handle(frame,
1179 : &ndr_table_samr,
1180 : local,
1181 : NULL,
1182 : get_session_info_system(),
1183 : msg_ctx,
1184 : &h);
1185 2 : if (!NT_STATUS_IS_OK(status)) {
1186 0 : goto out;
1187 : }
1188 :
1189 2 : status = samr_open_machine_account(
1190 : h, machine_sid, SEC_FLAG_MAXIMUM_ALLOWED, &user_handle);
1191 2 : if (!NT_STATUS_IS_OK(status)) {
1192 0 : goto out;
1193 : }
1194 :
1195 2 : status = dcerpc_samr_QueryUserInfo2(h,
1196 : frame,
1197 : &user_handle,
1198 : UserControlInformation,
1199 : &info,
1200 : &result);
1201 2 : if (any_nt_status_not_ok(status, result, &status)) {
1202 0 : goto out;
1203 : }
1204 :
1205 2 : acct_ctrl = info->info16.acct_flags;
1206 :
1207 2 : if (!(acct_ctrl & ACB_WSTRUST ||
1208 0 : acct_ctrl & ACB_SVRTRUST ||
1209 0 : acct_ctrl & ACB_DOMTRUST)) {
1210 0 : status = NT_STATUS_NO_SUCH_USER;
1211 0 : goto out;
1212 : }
1213 :
1214 2 : if (acct_ctrl & ACB_DISABLED) {
1215 0 : status = NT_STATUS_ACCOUNT_DISABLED;
1216 0 : goto out;
1217 : }
1218 :
1219 2 : switch(cr->cred_type) {
1220 0 : case CRED_TYPE_NT_HASH:
1221 0 : ZERO_STRUCT(info18);
1222 :
1223 0 : infolevel = UserInternal1Information;
1224 :
1225 0 : in = data_blob_const(cr->creds.nt_hash, 16);
1226 0 : out = data_blob_talloc_zero(frame, 16);
1227 0 : if (out.data == NULL) {
1228 0 : status = NT_STATUS_NO_MEMORY;
1229 0 : goto out;
1230 : }
1231 0 : rc = sess_crypt_blob(&out, &in, &session_key, SAMBA_GNUTLS_ENCRYPT);
1232 0 : if (rc != 0) {
1233 0 : status = gnutls_error_to_ntstatus(rc,
1234 : NT_STATUS_ACCESS_DISABLED_BY_POLICY_OTHER);
1235 0 : goto out;
1236 : }
1237 0 : memcpy(info18.nt_pwd.hash, out.data, out.length);
1238 :
1239 0 : info18.nt_pwd_active = true;
1240 :
1241 0 : info->info18 = info18;
1242 0 : break;
1243 2 : case CRED_TYPE_PLAIN_TEXT:
1244 2 : ZERO_STRUCT(info26);
1245 :
1246 2 : infolevel = UserInternal5InformationNew;
1247 :
1248 2 : status = init_samr_CryptPasswordEx(cr->creds.password,
1249 : &session_key,
1250 : &info26.password);
1251 2 : if (!NT_STATUS_IS_OK(status)) {
1252 0 : goto out;
1253 : }
1254 :
1255 2 : info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1256 2 : info->info26 = info26;
1257 2 : break;
1258 0 : default:
1259 0 : status = NT_STATUS_INTERNAL_ERROR;
1260 0 : goto out;
1261 : break;
1262 : }
1263 :
1264 2 : status = dcerpc_samr_SetUserInfo2(h,
1265 : frame,
1266 : &user_handle,
1267 : infolevel,
1268 : info,
1269 : &result);
1270 2 : if (any_nt_status_not_ok(status, result, &status)) {
1271 0 : goto out;
1272 : }
1273 :
1274 4 : out:
1275 2 : if (h && is_valid_policy_hnd(&user_handle)) {
1276 2 : dcerpc_samr_Close(h, frame, &user_handle, &result);
1277 : }
1278 2 : TALLOC_FREE(frame);
1279 :
1280 2 : return status;
1281 : }
1282 :
1283 : /*************************************************************************
1284 : _netr_ServerPasswordSet
1285 : *************************************************************************/
1286 :
1287 0 : NTSTATUS _netr_ServerPasswordSet(struct pipes_struct *p,
1288 : struct netr_ServerPasswordSet *r)
1289 : {
1290 0 : struct dcesrv_call_state *dce_call = p->dce_call;
1291 0 : struct auth_session_info *session_info =
1292 0 : dcesrv_call_session_info(dce_call);
1293 0 : NTSTATUS status = NT_STATUS_OK;
1294 : size_t i;
1295 0 : struct netlogon_creds_CredentialState *creds = NULL;
1296 0 : struct _samr_Credentials_t cr = { CRED_TYPE_NT_HASH, {0}};
1297 :
1298 0 : DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__));
1299 :
1300 0 : become_root();
1301 0 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
1302 : p->mem_ctx,
1303 : r->in.computer_name,
1304 : r->in.credential,
1305 : r->out.return_authenticator,
1306 : &creds);
1307 0 : unbecome_root();
1308 :
1309 0 : if (!NT_STATUS_IS_OK(status)) {
1310 0 : const char *computer_name = "<unknown>";
1311 :
1312 0 : if (creds != NULL && creds->computer_name != NULL) {
1313 0 : computer_name = creds->computer_name;
1314 : }
1315 0 : DEBUG(2,("_netr_ServerPasswordSet: netlogon_creds_server_step failed. Rejecting auth "
1316 : "request from client %s machine account %s\n",
1317 : r->in.computer_name, computer_name));
1318 0 : TALLOC_FREE(creds);
1319 0 : return status;
1320 : }
1321 :
1322 0 : DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n",
1323 : r->in.computer_name, creds->computer_name));
1324 :
1325 0 : status = netlogon_creds_des_decrypt(creds, r->in.new_password);
1326 0 : if (!NT_STATUS_IS_OK(status)) {
1327 0 : return status;
1328 : }
1329 :
1330 0 : DEBUG(100,("_netr_ServerPasswordSet: new given value was :\n"));
1331 0 : for(i = 0; i < sizeof(r->in.new_password->hash); i++)
1332 0 : DEBUG(100,("%02X ", r->in.new_password->hash[i]));
1333 0 : DEBUG(100,("\n"));
1334 :
1335 0 : cr.creds.nt_hash = r->in.new_password;
1336 0 : status = netr_set_machine_account_password(p->mem_ctx,
1337 : session_info,
1338 : p->msg_ctx,
1339 0 : creds->sid,
1340 : &cr);
1341 0 : return status;
1342 : }
1343 :
1344 : /****************************************************************
1345 : _netr_ServerPasswordSet2
1346 : ****************************************************************/
1347 :
1348 2 : NTSTATUS _netr_ServerPasswordSet2(struct pipes_struct *p,
1349 : struct netr_ServerPasswordSet2 *r)
1350 : {
1351 2 : struct dcesrv_call_state *dce_call = p->dce_call;
1352 2 : struct auth_session_info *session_info =
1353 0 : dcesrv_call_session_info(dce_call);
1354 : NTSTATUS status;
1355 2 : struct netlogon_creds_CredentialState *creds = NULL;
1356 2 : DATA_BLOB plaintext = data_blob_null;
1357 2 : DATA_BLOB new_password = data_blob_null;
1358 : size_t confounder_len;
1359 2 : DATA_BLOB dec_blob = data_blob_null;
1360 2 : DATA_BLOB enc_blob = data_blob_null;
1361 : struct samr_CryptPassword password_buf;
1362 2 : struct _samr_Credentials_t cr = { CRED_TYPE_PLAIN_TEXT, {0}};
1363 : bool ok;
1364 :
1365 2 : become_root();
1366 2 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
1367 : p->mem_ctx,
1368 : r->in.computer_name,
1369 : r->in.credential,
1370 : r->out.return_authenticator,
1371 : &creds);
1372 2 : unbecome_root();
1373 :
1374 2 : if (!NT_STATUS_IS_OK(status)) {
1375 0 : DBG_NOTICE("netlogon_creds_server_step failed. "
1376 : "Rejecting auth request from client %s\n",
1377 : r->in.computer_name);
1378 0 : TALLOC_FREE(creds);
1379 0 : return status;
1380 : }
1381 :
1382 2 : DBG_NOTICE("Server Password Set2 by remote "
1383 : "machine:[%s] on account [%s]\n",
1384 : r->in.computer_name,
1385 : creds->computer_name != NULL ?
1386 : creds->computer_name : "<unknown>");
1387 :
1388 2 : memcpy(password_buf.data, r->in.new_password->data, 512);
1389 2 : SIVAL(password_buf.data, 512, r->in.new_password->length);
1390 :
1391 2 : if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
1392 2 : status = netlogon_creds_aes_decrypt(creds,
1393 : password_buf.data,
1394 : 516);
1395 : } else {
1396 0 : status = netlogon_creds_arcfour_crypt(creds,
1397 : password_buf.data,
1398 : 516);
1399 : }
1400 2 : if (!NT_STATUS_IS_OK(status)) {
1401 0 : TALLOC_FREE(creds);
1402 0 : return status;
1403 : }
1404 :
1405 2 : if (!extract_pw_from_buffer(p->mem_ctx, password_buf.data, &new_password)) {
1406 0 : DEBUG(2,("_netr_ServerPasswordSet2: unable to extract password "
1407 : "from a buffer. Rejecting auth request as a wrong password\n"));
1408 0 : TALLOC_FREE(creds);
1409 0 : return NT_STATUS_WRONG_PASSWORD;
1410 : }
1411 :
1412 : /*
1413 : * Make sure the length field was encrypted,
1414 : * otherwise we are under attack.
1415 : */
1416 2 : if (new_password.length == r->in.new_password->length) {
1417 0 : DBG_WARNING("Length[%zu] field not encrypted\n",
1418 : new_password.length);
1419 0 : TALLOC_FREE(creds);
1420 0 : return NT_STATUS_WRONG_PASSWORD;
1421 : }
1422 :
1423 : /*
1424 : * We don't allow empty passwords for machine accounts.
1425 : */
1426 2 : if (new_password.length < 2) {
1427 0 : DBG_WARNING("Empty password Length[%zu]\n",
1428 : new_password.length);
1429 0 : TALLOC_FREE(creds);
1430 0 : return NT_STATUS_WRONG_PASSWORD;
1431 : }
1432 :
1433 : /*
1434 : * Make sure the confounder part of CryptPassword
1435 : * buffer was encrypted, otherwise we are under attack.
1436 : */
1437 2 : confounder_len = 512 - new_password.length;
1438 2 : enc_blob = data_blob_const(r->in.new_password->data, confounder_len);
1439 2 : dec_blob = data_blob_const(password_buf.data, confounder_len);
1440 2 : if (confounder_len > 0 && data_blob_equal_const_time(&dec_blob, &enc_blob)) {
1441 0 : DBG_WARNING("Confounder buffer not encrypted Length[%zu]\n",
1442 : confounder_len);
1443 0 : TALLOC_FREE(creds);
1444 0 : return NT_STATUS_WRONG_PASSWORD;
1445 : }
1446 :
1447 : /*
1448 : * Check that the password part was actually encrypted,
1449 : * otherwise we are under attack.
1450 : */
1451 2 : enc_blob = data_blob_const(r->in.new_password->data + confounder_len,
1452 : new_password.length);
1453 2 : dec_blob = data_blob_const(password_buf.data + confounder_len,
1454 : new_password.length);
1455 2 : if (data_blob_equal_const_time(&dec_blob, &enc_blob)) {
1456 0 : DBG_WARNING("Password buffer not encrypted Length[%zu]\n",
1457 : new_password.length);
1458 0 : TALLOC_FREE(creds);
1459 0 : return NT_STATUS_WRONG_PASSWORD;
1460 : }
1461 :
1462 : /*
1463 : * don't allow zero buffers
1464 : */
1465 2 : if (all_zero(new_password.data, new_password.length)) {
1466 0 : DBG_WARNING("Password zero buffer Length[%zu]\n",
1467 : new_password.length);
1468 0 : TALLOC_FREE(creds);
1469 0 : return NT_STATUS_WRONG_PASSWORD;
1470 : }
1471 :
1472 : /* Convert from UTF16 -> plaintext. */
1473 4 : ok = convert_string_talloc(p->mem_ctx,
1474 : CH_UTF16,
1475 : CH_UNIX,
1476 2 : new_password.data,
1477 : new_password.length,
1478 : (void *)&plaintext.data,
1479 : &plaintext.length);
1480 2 : if (!ok) {
1481 0 : DBG_WARNING("unable to extract password from a buffer. "
1482 : "Rejecting auth request as a wrong password\n");
1483 0 : TALLOC_FREE(creds);
1484 0 : return NT_STATUS_WRONG_PASSWORD;
1485 : }
1486 :
1487 : /*
1488 : * We don't allow empty passwords for machine accounts.
1489 : */
1490 :
1491 2 : cr.creds.password = (const char*) plaintext.data;
1492 2 : if (strlen(cr.creds.password) == 0) {
1493 0 : DBG_WARNING("Empty plaintext password\n");
1494 0 : TALLOC_FREE(creds);
1495 0 : return NT_STATUS_WRONG_PASSWORD;
1496 : }
1497 :
1498 2 : status = netr_set_machine_account_password(p->mem_ctx,
1499 : session_info,
1500 : p->msg_ctx,
1501 2 : creds->sid,
1502 : &cr);
1503 2 : TALLOC_FREE(creds);
1504 2 : return status;
1505 : }
1506 :
1507 : /*************************************************************************
1508 : _netr_LogonSamLogoff
1509 : *************************************************************************/
1510 :
1511 0 : NTSTATUS _netr_LogonSamLogoff(struct pipes_struct *p,
1512 : struct netr_LogonSamLogoff *r)
1513 : {
1514 : NTSTATUS status;
1515 : struct netlogon_creds_CredentialState *creds;
1516 :
1517 0 : become_root();
1518 0 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
1519 : p->mem_ctx,
1520 : r->in.computer_name,
1521 : r->in.credential,
1522 : r->out.return_authenticator,
1523 : &creds);
1524 0 : unbecome_root();
1525 :
1526 0 : return status;
1527 : }
1528 :
1529 0 : static NTSTATUS _netr_LogonSamLogon_check(const struct netr_LogonSamLogonEx *r)
1530 : {
1531 0 : switch (r->in.logon_level) {
1532 0 : case NetlogonInteractiveInformation:
1533 : case NetlogonServiceInformation:
1534 : case NetlogonInteractiveTransitiveInformation:
1535 : case NetlogonServiceTransitiveInformation:
1536 0 : if (r->in.logon->password == NULL) {
1537 0 : return NT_STATUS_INVALID_PARAMETER;
1538 : }
1539 :
1540 0 : switch (r->in.validation_level) {
1541 0 : case NetlogonValidationSamInfo: /* 2 */
1542 : case NetlogonValidationSamInfo2: /* 3 */
1543 0 : break;
1544 0 : case NetlogonValidationSamInfo4: /* 6 */
1545 0 : if ((pdb_capabilities() & PDB_CAP_ADS) == 0) {
1546 0 : DEBUG(10,("Not adding validation info level 6 "
1547 : "without ADS passdb backend\n"));
1548 0 : return NT_STATUS_INVALID_INFO_CLASS;
1549 : }
1550 0 : break;
1551 0 : default:
1552 0 : return NT_STATUS_INVALID_INFO_CLASS;
1553 : }
1554 :
1555 0 : break;
1556 0 : case NetlogonNetworkInformation:
1557 : case NetlogonNetworkTransitiveInformation:
1558 0 : if (r->in.logon->network == NULL) {
1559 0 : return NT_STATUS_INVALID_PARAMETER;
1560 : }
1561 :
1562 0 : switch (r->in.validation_level) {
1563 0 : case NetlogonValidationSamInfo: /* 2 */
1564 : case NetlogonValidationSamInfo2: /* 3 */
1565 0 : break;
1566 0 : case NetlogonValidationSamInfo4: /* 6 */
1567 0 : if ((pdb_capabilities() & PDB_CAP_ADS) == 0) {
1568 0 : DEBUG(10,("Not adding validation info level 6 "
1569 : "without ADS passdb backend\n"));
1570 0 : return NT_STATUS_INVALID_INFO_CLASS;
1571 : }
1572 0 : break;
1573 0 : default:
1574 0 : return NT_STATUS_INVALID_INFO_CLASS;
1575 : }
1576 :
1577 0 : break;
1578 :
1579 0 : case NetlogonGenericInformation:
1580 0 : if (r->in.logon->generic == NULL) {
1581 0 : return NT_STATUS_INVALID_PARAMETER;
1582 : }
1583 :
1584 : /* we don't support this here */
1585 0 : return NT_STATUS_INVALID_PARAMETER;
1586 : #if 0
1587 : switch (r->in.validation_level) {
1588 : /* TODO: case NetlogonValidationGenericInfo: 4 */
1589 : case NetlogonValidationGenericInfo2: /* 5 */
1590 : break;
1591 : default:
1592 : return NT_STATUS_INVALID_INFO_CLASS;
1593 : }
1594 :
1595 : break;
1596 : #endif
1597 0 : default:
1598 0 : return NT_STATUS_INVALID_PARAMETER;
1599 : }
1600 :
1601 0 : return NT_STATUS_OK;
1602 : }
1603 :
1604 : /*************************************************************************
1605 : _netr_LogonSamLogon_base
1606 : *************************************************************************/
1607 :
1608 0 : static NTSTATUS _netr_LogonSamLogon_base(struct pipes_struct *p,
1609 : struct netr_LogonSamLogonEx *r,
1610 : struct netlogon_creds_CredentialState *creds)
1611 : {
1612 0 : struct dcesrv_call_state *dce_call = p->dce_call;
1613 0 : struct dcesrv_connection *dcesrv_conn = dce_call->conn;
1614 0 : const struct tsocket_address *local_address =
1615 0 : dcesrv_connection_get_local_address(dcesrv_conn);
1616 0 : const struct tsocket_address *remote_address =
1617 0 : dcesrv_connection_get_remote_address(dcesrv_conn);
1618 0 : NTSTATUS status = NT_STATUS_OK;
1619 0 : union netr_LogonLevel *logon = r->in.logon;
1620 : const char *nt_username, *nt_domain, *nt_workstation;
1621 0 : char *sanitized_username = NULL;
1622 0 : struct auth_usersupplied_info *user_info = NULL;
1623 0 : struct auth_serversupplied_info *server_info = NULL;
1624 0 : struct auth_context *auth_context = NULL;
1625 : const char *fn;
1626 0 : enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
1627 0 : enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
1628 0 : uint16_t opnum = dce_call->pkt.u.request.opnum;
1629 :
1630 0 : dcesrv_call_auth_info(dce_call, &auth_type, &auth_level);
1631 :
1632 : #ifdef DEBUG_PASSWORD
1633 0 : logon = netlogon_creds_shallow_copy_logon(p->mem_ctx,
1634 : r->in.logon_level,
1635 0 : r->in.logon);
1636 0 : if (logon == NULL) {
1637 0 : logon = r->in.logon;
1638 : }
1639 : #endif
1640 :
1641 0 : switch (opnum) {
1642 0 : case NDR_NETR_LOGONSAMLOGON:
1643 0 : fn = "_netr_LogonSamLogon";
1644 : /*
1645 : * Already called netr_check_schannel() via
1646 : * netr_creds_server_step_check()
1647 : */
1648 0 : break;
1649 0 : case NDR_NETR_LOGONSAMLOGONWITHFLAGS:
1650 0 : fn = "_netr_LogonSamLogonWithFlags";
1651 : /*
1652 : * Already called netr_check_schannel() via
1653 : * netr_creds_server_step_check()
1654 : */
1655 0 : break;
1656 0 : case NDR_NETR_LOGONSAMLOGONEX:
1657 0 : fn = "_netr_LogonSamLogonEx";
1658 :
1659 0 : if (auth_type != DCERPC_AUTH_TYPE_SCHANNEL) {
1660 0 : return NT_STATUS_ACCESS_DENIED;
1661 : }
1662 :
1663 0 : status = dcesrv_netr_check_schannel(p->dce_call,
1664 : creds,
1665 : auth_type,
1666 : auth_level,
1667 : opnum);
1668 0 : if (NT_STATUS_IS_ERR(status)) {
1669 0 : return status;
1670 : }
1671 :
1672 0 : break;
1673 0 : default:
1674 0 : return NT_STATUS_INTERNAL_ERROR;
1675 : }
1676 :
1677 0 : *r->out.authoritative = 1; /* authoritative response */
1678 :
1679 0 : switch (r->in.validation_level) {
1680 0 : case 2:
1681 0 : r->out.validation->sam2 = talloc_zero(p->mem_ctx, struct netr_SamInfo2);
1682 0 : if (!r->out.validation->sam2) {
1683 0 : return NT_STATUS_NO_MEMORY;
1684 : }
1685 0 : break;
1686 0 : case 3:
1687 0 : r->out.validation->sam3 = talloc_zero(p->mem_ctx, struct netr_SamInfo3);
1688 0 : if (!r->out.validation->sam3) {
1689 0 : return NT_STATUS_NO_MEMORY;
1690 : }
1691 0 : break;
1692 0 : case 6:
1693 0 : r->out.validation->sam6 = talloc_zero(p->mem_ctx, struct netr_SamInfo6);
1694 0 : if (!r->out.validation->sam6) {
1695 0 : return NT_STATUS_NO_MEMORY;
1696 : }
1697 0 : break;
1698 0 : default:
1699 0 : DEBUG(0,("%s: bad validation_level value %d.\n",
1700 : fn, (int)r->in.validation_level));
1701 0 : return NT_STATUS_INVALID_INFO_CLASS;
1702 : }
1703 :
1704 0 : switch (r->in.logon_level) {
1705 0 : case NetlogonInteractiveInformation:
1706 : case NetlogonServiceInformation:
1707 : case NetlogonInteractiveTransitiveInformation:
1708 : case NetlogonServiceTransitiveInformation:
1709 0 : nt_username = logon->password->identity_info.account_name.string ?
1710 0 : logon->password->identity_info.account_name.string : "";
1711 0 : nt_domain = logon->password->identity_info.domain_name.string ?
1712 0 : logon->password->identity_info.domain_name.string : "";
1713 0 : nt_workstation = logon->password->identity_info.workstation.string ?
1714 0 : logon->password->identity_info.workstation.string : "";
1715 :
1716 0 : DEBUG(3,("SAM Logon (Interactive). Domain:[%s]. ", lp_workgroup()));
1717 0 : break;
1718 0 : case NetlogonNetworkInformation:
1719 : case NetlogonNetworkTransitiveInformation:
1720 0 : nt_username = logon->network->identity_info.account_name.string ?
1721 0 : logon->network->identity_info.account_name.string : "";
1722 0 : nt_domain = logon->network->identity_info.domain_name.string ?
1723 0 : logon->network->identity_info.domain_name.string : "";
1724 0 : nt_workstation = logon->network->identity_info.workstation.string ?
1725 0 : logon->network->identity_info.workstation.string : "";
1726 :
1727 0 : DEBUG(3,("SAM Logon (Network). Domain:[%s]. ", lp_workgroup()));
1728 0 : break;
1729 0 : default:
1730 0 : DEBUG(2,("SAM Logon: unsupported switch value\n"));
1731 0 : return NT_STATUS_INVALID_INFO_CLASS;
1732 : } /* end switch */
1733 :
1734 0 : DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username, nt_workstation, nt_domain));
1735 :
1736 0 : DEBUG(5,("Attempting validation level %d for unmapped username %s.\n",
1737 : r->in.validation_level, nt_username));
1738 :
1739 0 : status = netlogon_creds_decrypt_samlogon_logon(creds,
1740 : r->in.logon_level,
1741 : logon);
1742 0 : if (!NT_STATUS_IS_OK(status)) {
1743 0 : return status;
1744 : }
1745 :
1746 0 : status = make_auth3_context_for_netlogon(talloc_tos(), &auth_context);
1747 0 : if (!NT_STATUS_IS_OK(status)) {
1748 0 : return status;
1749 : }
1750 :
1751 0 : switch (r->in.logon_level) {
1752 0 : case NetlogonNetworkInformation:
1753 : case NetlogonNetworkTransitiveInformation:
1754 : {
1755 0 : const char *wksname = nt_workstation;
1756 0 : const char *workgroup = lp_workgroup();
1757 : bool ok;
1758 :
1759 0 : ok = auth3_context_set_challenge(
1760 0 : auth_context, logon->network->challenge, "fixed");
1761 0 : if (!ok) {
1762 0 : return NT_STATUS_NO_MEMORY;
1763 : }
1764 :
1765 : /* For a network logon, the workstation name comes in with two
1766 : * backslashes in the front. Strip them if they are there. */
1767 :
1768 0 : if (*wksname == '\\') wksname++;
1769 0 : if (*wksname == '\\') wksname++;
1770 :
1771 : /* Standard challenge/response authentication */
1772 0 : if (!make_user_info_netlogon_network(talloc_tos(),
1773 : &user_info,
1774 : nt_username, nt_domain,
1775 : wksname,
1776 : remote_address,
1777 : local_address,
1778 0 : logon->network->identity_info.parameter_control,
1779 0 : logon->network->lm.data,
1780 0 : logon->network->lm.length,
1781 0 : logon->network->nt.data,
1782 0 : logon->network->nt.length)) {
1783 0 : status = NT_STATUS_NO_MEMORY;
1784 : }
1785 :
1786 0 : if (NT_STATUS_IS_OK(status)) {
1787 0 : status = NTLMv2_RESPONSE_verify_netlogon_creds(
1788 0 : user_info->client.account_name,
1789 0 : user_info->client.domain_name,
1790 0 : user_info->password.response.nt,
1791 : creds, workgroup);
1792 : }
1793 0 : break;
1794 : }
1795 0 : case NetlogonInteractiveInformation:
1796 : case NetlogonServiceInformation:
1797 : case NetlogonInteractiveTransitiveInformation:
1798 : case NetlogonServiceTransitiveInformation:
1799 :
1800 : /* 'Interactive' authentication, supplies the password in its
1801 : MD4 form, encrypted with the session key. We will convert
1802 : this to challenge/response for the auth subsystem to chew
1803 : on */
1804 : {
1805 : uint8_t chal[8];
1806 :
1807 : #ifdef DEBUG_PASSWORD
1808 0 : if (logon != r->in.logon) {
1809 0 : DEBUG(100,("lm owf password:"));
1810 0 : dump_data(100,
1811 0 : r->in.logon->password->lmpassword.hash, 16);
1812 :
1813 0 : DEBUG(100,("nt owf password:"));
1814 0 : dump_data(100,
1815 0 : r->in.logon->password->ntpassword.hash, 16);
1816 : }
1817 :
1818 0 : DEBUG(100,("decrypt of lm owf password:"));
1819 0 : dump_data(100, logon->password->lmpassword.hash, 16);
1820 :
1821 0 : DEBUG(100,("decrypt of nt owf password:"));
1822 0 : dump_data(100, logon->password->ntpassword.hash, 16);
1823 : #endif
1824 :
1825 0 : auth_get_ntlm_challenge(auth_context, chal);
1826 :
1827 0 : if (!make_user_info_netlogon_interactive(talloc_tos(),
1828 : &user_info,
1829 : nt_username, nt_domain,
1830 : nt_workstation,
1831 : remote_address,
1832 : local_address,
1833 0 : logon->password->identity_info.parameter_control,
1834 : chal,
1835 0 : logon->password->lmpassword.hash,
1836 0 : logon->password->ntpassword.hash)) {
1837 0 : status = NT_STATUS_NO_MEMORY;
1838 : }
1839 0 : break;
1840 : }
1841 0 : default:
1842 0 : DEBUG(2,("SAM Logon: unsupported switch value\n"));
1843 0 : return NT_STATUS_INVALID_INFO_CLASS;
1844 : } /* end switch */
1845 :
1846 0 : if ( NT_STATUS_IS_OK(status) ) {
1847 0 : status = auth_check_ntlm_password(p->mem_ctx,
1848 : auth_context,
1849 : user_info,
1850 : &server_info,
1851 : r->out.authoritative);
1852 : }
1853 :
1854 0 : TALLOC_FREE(auth_context);
1855 0 : TALLOC_FREE(user_info);
1856 :
1857 0 : DEBUG(5,("%s: check_password returned status %s\n",
1858 : fn, nt_errstr(status)));
1859 :
1860 : /* Check account and password */
1861 :
1862 0 : if (!NT_STATUS_IS_OK(status)) {
1863 0 : TALLOC_FREE(server_info);
1864 0 : return status;
1865 : }
1866 :
1867 0 : if (server_info->guest) {
1868 : /* We don't like guest domain logons... */
1869 0 : DEBUG(5,("%s: Attempted domain logon as GUEST "
1870 : "denied.\n", fn));
1871 0 : TALLOC_FREE(server_info);
1872 0 : return NT_STATUS_LOGON_FAILURE;
1873 : }
1874 :
1875 0 : sanitized_username = talloc_alpha_strcpy(talloc_tos(),
1876 : nt_username,
1877 : SAFE_NETBIOS_CHARS "$");
1878 0 : if (sanitized_username == NULL) {
1879 0 : TALLOC_FREE(server_info);
1880 0 : return NT_STATUS_NO_MEMORY;
1881 : }
1882 :
1883 0 : set_current_user_info(sanitized_username,
1884 0 : server_info->unix_name,
1885 0 : server_info->info3->base.logon_domain.string);
1886 0 : TALLOC_FREE(sanitized_username);
1887 :
1888 : /* This is the point at which, if the login was successful, that
1889 : the SAM Local Security Authority should record that the user is
1890 : logged in to the domain. */
1891 :
1892 0 : switch (r->in.validation_level) {
1893 0 : case 2:
1894 0 : status = serverinfo_to_SamInfo2(server_info,
1895 0 : r->out.validation->sam2);
1896 0 : break;
1897 0 : case 3:
1898 0 : status = serverinfo_to_SamInfo3(server_info,
1899 0 : r->out.validation->sam3);
1900 0 : break;
1901 0 : case 6: {
1902 : /* Only allow this if the pipe is protected. */
1903 0 : if (auth_level < DCERPC_AUTH_LEVEL_PRIVACY) {
1904 0 : DEBUG(0,("netr_Validation6: client %s not using privacy for netlogon\n",
1905 : get_remote_machine_name()));
1906 0 : status = NT_STATUS_INVALID_PARAMETER;
1907 0 : break;
1908 : }
1909 :
1910 0 : status = serverinfo_to_SamInfo6(server_info,
1911 0 : r->out.validation->sam6);
1912 0 : break;
1913 : }
1914 : }
1915 :
1916 0 : TALLOC_FREE(server_info);
1917 :
1918 0 : if (!NT_STATUS_IS_OK(status)) {
1919 0 : return status;
1920 : }
1921 :
1922 0 : status = netlogon_creds_encrypt_samlogon_validation(creds,
1923 0 : r->in.validation_level,
1924 : r->out.validation);
1925 :
1926 0 : return status;
1927 : }
1928 :
1929 : /****************************************************************
1930 : _netr_LogonSamLogonWithFlags
1931 : ****************************************************************/
1932 :
1933 0 : NTSTATUS _netr_LogonSamLogonWithFlags(struct pipes_struct *p,
1934 : struct netr_LogonSamLogonWithFlags *r)
1935 : {
1936 : NTSTATUS status;
1937 : struct netlogon_creds_CredentialState *creds;
1938 : struct netr_LogonSamLogonEx r2;
1939 : struct netr_Authenticator return_authenticator;
1940 :
1941 0 : *r->out.authoritative = true;
1942 :
1943 0 : r2.in.server_name = r->in.server_name;
1944 0 : r2.in.computer_name = r->in.computer_name;
1945 0 : r2.in.logon_level = r->in.logon_level;
1946 0 : r2.in.logon = r->in.logon;
1947 0 : r2.in.validation_level = r->in.validation_level;
1948 0 : r2.in.flags = r->in.flags;
1949 0 : r2.out.validation = r->out.validation;
1950 0 : r2.out.authoritative = r->out.authoritative;
1951 0 : r2.out.flags = r->out.flags;
1952 :
1953 0 : status = _netr_LogonSamLogon_check(&r2);
1954 0 : if (!NT_STATUS_IS_OK(status)) {
1955 0 : return status;
1956 : }
1957 :
1958 0 : become_root();
1959 0 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
1960 : p->mem_ctx,
1961 : r->in.computer_name,
1962 : r->in.credential,
1963 : &return_authenticator,
1964 : &creds);
1965 0 : unbecome_root();
1966 0 : if (!NT_STATUS_IS_OK(status)) {
1967 0 : return status;
1968 : }
1969 :
1970 0 : status = _netr_LogonSamLogon_base(p, &r2, creds);
1971 :
1972 0 : *r->out.return_authenticator = return_authenticator;
1973 :
1974 0 : return status;
1975 : }
1976 :
1977 : /*************************************************************************
1978 : _netr_LogonSamLogon
1979 : *************************************************************************/
1980 :
1981 0 : NTSTATUS _netr_LogonSamLogon(struct pipes_struct *p,
1982 : struct netr_LogonSamLogon *r)
1983 : {
1984 : NTSTATUS status;
1985 : struct netr_LogonSamLogonWithFlags r2;
1986 0 : uint32_t flags = 0;
1987 :
1988 0 : r2.in.server_name = r->in.server_name;
1989 0 : r2.in.computer_name = r->in.computer_name;
1990 0 : r2.in.credential = r->in.credential;
1991 0 : r2.in.logon_level = r->in.logon_level;
1992 0 : r2.in.logon = r->in.logon;
1993 0 : r2.in.validation_level = r->in.validation_level;
1994 0 : r2.in.return_authenticator = r->in.return_authenticator;
1995 0 : r2.in.flags = &flags;
1996 0 : r2.out.validation = r->out.validation;
1997 0 : r2.out.authoritative = r->out.authoritative;
1998 0 : r2.out.flags = &flags;
1999 0 : r2.out.return_authenticator = r->out.return_authenticator;
2000 :
2001 0 : status = _netr_LogonSamLogonWithFlags(p, &r2);
2002 :
2003 0 : return status;
2004 : }
2005 :
2006 : /*************************************************************************
2007 : _netr_LogonSamLogonEx
2008 : - no credential chaining. Map into net sam logon.
2009 : *************************************************************************/
2010 :
2011 0 : NTSTATUS _netr_LogonSamLogonEx(struct pipes_struct *p,
2012 : struct netr_LogonSamLogonEx *r)
2013 : {
2014 : NTSTATUS status;
2015 0 : struct netlogon_creds_CredentialState *creds = NULL;
2016 0 : struct loadparm_context *lp_ctx = p->dce_call->conn->dce_ctx->lp_ctx;
2017 :
2018 0 : *r->out.authoritative = true;
2019 :
2020 0 : status = _netr_LogonSamLogon_check(r);
2021 0 : if (!NT_STATUS_IS_OK(status)) {
2022 0 : return status;
2023 : }
2024 :
2025 0 : become_root();
2026 0 : status = schannel_get_creds_state(p->mem_ctx, lp_ctx,
2027 : r->in.computer_name, &creds);
2028 0 : unbecome_root();
2029 0 : if (!NT_STATUS_IS_OK(status)) {
2030 0 : return status;
2031 : }
2032 :
2033 0 : status = _netr_LogonSamLogon_base(p, r, creds);
2034 0 : TALLOC_FREE(creds);
2035 :
2036 0 : return status;
2037 : }
2038 :
2039 : /*************************************************************************
2040 : _ds_enum_dom_trusts
2041 : *************************************************************************/
2042 : #if 0 /* JERRY -- not correct */
2043 : NTSTATUS _ds_enum_dom_trusts(struct pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u,
2044 : DS_R_ENUM_DOM_TRUSTS *r_u)
2045 : {
2046 : NTSTATUS status = NT_STATUS_OK;
2047 :
2048 : /* TODO: According to MSDN, the can only be executed against a
2049 : DC or domain member running Windows 2000 or later. Need
2050 : to test against a standalone 2k server and see what it
2051 : does. A windows 2000 DC includes its own domain in the
2052 : list. --jerry */
2053 :
2054 : return status;
2055 : }
2056 : #endif /* JERRY */
2057 :
2058 :
2059 : /****************************************************************
2060 : ****************************************************************/
2061 :
2062 0 : WERROR _netr_LogonUasLogon(struct pipes_struct *p,
2063 : struct netr_LogonUasLogon *r)
2064 : {
2065 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2066 0 : return WERR_NOT_SUPPORTED;
2067 : }
2068 :
2069 : /****************************************************************
2070 : ****************************************************************/
2071 :
2072 0 : WERROR _netr_LogonUasLogoff(struct pipes_struct *p,
2073 : struct netr_LogonUasLogoff *r)
2074 : {
2075 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2076 0 : return WERR_NOT_SUPPORTED;
2077 : }
2078 :
2079 : /****************************************************************
2080 : ****************************************************************/
2081 :
2082 0 : NTSTATUS _netr_DatabaseDeltas(struct pipes_struct *p,
2083 : struct netr_DatabaseDeltas *r)
2084 : {
2085 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2086 0 : return NT_STATUS_NOT_IMPLEMENTED;
2087 : }
2088 :
2089 : /****************************************************************
2090 : ****************************************************************/
2091 :
2092 0 : NTSTATUS _netr_DatabaseSync(struct pipes_struct *p,
2093 : struct netr_DatabaseSync *r)
2094 : {
2095 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2096 0 : return NT_STATUS_NOT_IMPLEMENTED;
2097 : }
2098 :
2099 : /****************************************************************
2100 : ****************************************************************/
2101 :
2102 0 : NTSTATUS _netr_AccountDeltas(struct pipes_struct *p,
2103 : struct netr_AccountDeltas *r)
2104 : {
2105 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2106 0 : return NT_STATUS_NOT_IMPLEMENTED;
2107 : }
2108 :
2109 : /****************************************************************
2110 : ****************************************************************/
2111 :
2112 0 : NTSTATUS _netr_AccountSync(struct pipes_struct *p,
2113 : struct netr_AccountSync *r)
2114 : {
2115 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2116 0 : return NT_STATUS_NOT_IMPLEMENTED;
2117 : }
2118 :
2119 : /****************************************************************
2120 : ****************************************************************/
2121 :
2122 0 : static bool wb_getdcname(TALLOC_CTX *mem_ctx,
2123 : const char *domain,
2124 : const char **dcname,
2125 : uint32_t flags,
2126 : WERROR *werr)
2127 : {
2128 : wbcErr result;
2129 0 : struct wbcDomainControllerInfo *dc_info = NULL;
2130 :
2131 0 : result = wbcLookupDomainController(domain,
2132 : flags,
2133 : &dc_info);
2134 0 : switch (result) {
2135 0 : case WBC_ERR_SUCCESS:
2136 0 : break;
2137 0 : case WBC_ERR_WINBIND_NOT_AVAILABLE:
2138 0 : return false;
2139 0 : case WBC_ERR_DOMAIN_NOT_FOUND:
2140 0 : *werr = WERR_NO_SUCH_DOMAIN;
2141 0 : return true;
2142 0 : default:
2143 0 : *werr = WERR_DOMAIN_CONTROLLER_NOT_FOUND;
2144 0 : return true;
2145 : }
2146 :
2147 0 : *dcname = talloc_strdup(mem_ctx, dc_info->dc_name);
2148 0 : wbcFreeMemory(dc_info);
2149 0 : if (!*dcname) {
2150 0 : *werr = WERR_NOT_ENOUGH_MEMORY;
2151 0 : return false;
2152 : }
2153 :
2154 0 : *werr = WERR_OK;
2155 :
2156 0 : return true;
2157 : }
2158 :
2159 : /****************************************************************
2160 : _netr_GetDcName
2161 : ****************************************************************/
2162 :
2163 0 : WERROR _netr_GetDcName(struct pipes_struct *p,
2164 : struct netr_GetDcName *r)
2165 : {
2166 : NTSTATUS status;
2167 : WERROR werr;
2168 : uint32_t flags;
2169 : struct netr_DsRGetDCNameInfo *info;
2170 : bool ret;
2171 :
2172 0 : ret = wb_getdcname(p->mem_ctx,
2173 : r->in.domainname,
2174 : r->out.dcname,
2175 : WBC_LOOKUP_DC_IS_FLAT_NAME |
2176 : WBC_LOOKUP_DC_RETURN_FLAT_NAME |
2177 : WBC_LOOKUP_DC_PDC_REQUIRED,
2178 : &werr);
2179 0 : if (ret == true) {
2180 0 : return werr;
2181 : }
2182 :
2183 0 : flags = DS_PDC_REQUIRED | DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
2184 :
2185 0 : status = dsgetdcname(p->mem_ctx,
2186 : p->msg_ctx,
2187 : r->in.domainname,
2188 : NULL,
2189 : NULL,
2190 : flags,
2191 : &info);
2192 0 : if (!NT_STATUS_IS_OK(status)) {
2193 0 : return ntstatus_to_werror(status);
2194 : }
2195 :
2196 0 : *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
2197 0 : talloc_free(info);
2198 0 : if (!*r->out.dcname) {
2199 0 : return WERR_NOT_ENOUGH_MEMORY;
2200 : }
2201 :
2202 0 : return WERR_OK;
2203 : }
2204 :
2205 : /****************************************************************
2206 : _netr_GetAnyDCName
2207 : ****************************************************************/
2208 :
2209 0 : WERROR _netr_GetAnyDCName(struct pipes_struct *p,
2210 : struct netr_GetAnyDCName *r)
2211 : {
2212 : NTSTATUS status;
2213 : WERROR werr;
2214 : uint32_t flags;
2215 : struct netr_DsRGetDCNameInfo *info;
2216 : bool ret;
2217 :
2218 0 : ret = wb_getdcname(p->mem_ctx,
2219 : r->in.domainname,
2220 : r->out.dcname,
2221 : WBC_LOOKUP_DC_IS_FLAT_NAME |
2222 : WBC_LOOKUP_DC_RETURN_FLAT_NAME,
2223 : &werr);
2224 0 : if (ret == true) {
2225 0 : return werr;
2226 : }
2227 :
2228 0 : flags = DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
2229 :
2230 0 : status = dsgetdcname(p->mem_ctx,
2231 : p->msg_ctx,
2232 : r->in.domainname,
2233 : NULL,
2234 : NULL,
2235 : flags,
2236 : &info);
2237 0 : if (!NT_STATUS_IS_OK(status)) {
2238 0 : return ntstatus_to_werror(status);
2239 : }
2240 :
2241 0 : *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
2242 0 : talloc_free(info);
2243 0 : if (!*r->out.dcname) {
2244 0 : return WERR_NOT_ENOUGH_MEMORY;
2245 : }
2246 :
2247 0 : return WERR_OK;
2248 : }
2249 :
2250 : /****************************************************************
2251 : ****************************************************************/
2252 :
2253 0 : NTSTATUS _netr_DatabaseSync2(struct pipes_struct *p,
2254 : struct netr_DatabaseSync2 *r)
2255 : {
2256 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2257 0 : return NT_STATUS_NOT_IMPLEMENTED;
2258 : }
2259 :
2260 : /****************************************************************
2261 : ****************************************************************/
2262 :
2263 0 : NTSTATUS _netr_DatabaseRedo(struct pipes_struct *p,
2264 : struct netr_DatabaseRedo *r)
2265 : {
2266 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2267 0 : return NT_STATUS_NOT_IMPLEMENTED;
2268 : }
2269 :
2270 : /****************************************************************
2271 : ****************************************************************/
2272 :
2273 0 : WERROR _netr_DsRGetDCName(struct pipes_struct *p,
2274 : struct netr_DsRGetDCName *r)
2275 : {
2276 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2277 0 : return WERR_NOT_SUPPORTED;
2278 : }
2279 :
2280 : /****************************************************************
2281 : ****************************************************************/
2282 :
2283 4 : NTSTATUS _netr_LogonGetCapabilities(struct pipes_struct *p,
2284 : struct netr_LogonGetCapabilities *r)
2285 : {
2286 : struct netlogon_creds_CredentialState *creds;
2287 : NTSTATUS status;
2288 :
2289 4 : switch (r->in.query_level) {
2290 4 : case 1:
2291 4 : break;
2292 0 : case 2:
2293 : /*
2294 : * Until we know the details behind KB5028166
2295 : * just return DCERPC_NCA_S_FAULT_INVALID_TAG
2296 : * like an unpatched Windows Server.
2297 : */
2298 : FALL_THROUGH;
2299 : default:
2300 : /*
2301 : * There would not be a way to marshall the
2302 : * the response. Which would mean our final
2303 : * ndr_push would fail an we would return
2304 : * an RPC-level fault with DCERPC_FAULT_BAD_STUB_DATA.
2305 : *
2306 : * But it's important to match a Windows server
2307 : * especially before KB5028166, see also our bug #15418
2308 : * Otherwise Windows client would stop talking to us.
2309 : */
2310 0 : p->fault_state = DCERPC_NCA_S_FAULT_INVALID_TAG;
2311 0 : return NT_STATUS_NOT_SUPPORTED;
2312 : }
2313 :
2314 4 : become_root();
2315 4 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
2316 : p->mem_ctx,
2317 : r->in.computer_name,
2318 : r->in.credential,
2319 : r->out.return_authenticator,
2320 : &creds);
2321 4 : unbecome_root();
2322 4 : if (!NT_STATUS_IS_OK(status)) {
2323 0 : return status;
2324 : }
2325 :
2326 4 : r->out.capabilities->server_capabilities = creds->negotiate_flags;
2327 :
2328 4 : return NT_STATUS_OK;
2329 : }
2330 :
2331 : /****************************************************************
2332 : ****************************************************************/
2333 :
2334 0 : WERROR _netr_NETRLOGONSETSERVICEBITS(struct pipes_struct *p,
2335 : struct netr_NETRLOGONSETSERVICEBITS *r)
2336 : {
2337 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2338 0 : return WERR_NOT_SUPPORTED;
2339 : }
2340 :
2341 : /****************************************************************
2342 : ****************************************************************/
2343 :
2344 0 : WERROR _netr_LogonGetTrustRid(struct pipes_struct *p,
2345 : struct netr_LogonGetTrustRid *r)
2346 : {
2347 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2348 0 : return WERR_NOT_SUPPORTED;
2349 : }
2350 :
2351 : /****************************************************************
2352 : ****************************************************************/
2353 :
2354 0 : WERROR _netr_NETRLOGONCOMPUTESERVERDIGEST(struct pipes_struct *p,
2355 : struct netr_NETRLOGONCOMPUTESERVERDIGEST *r)
2356 : {
2357 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2358 0 : return WERR_NOT_SUPPORTED;
2359 : }
2360 :
2361 : /****************************************************************
2362 : ****************************************************************/
2363 :
2364 0 : WERROR _netr_NETRLOGONCOMPUTECLIENTDIGEST(struct pipes_struct *p,
2365 : struct netr_NETRLOGONCOMPUTECLIENTDIGEST *r)
2366 : {
2367 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2368 0 : return WERR_NOT_SUPPORTED;
2369 : }
2370 :
2371 : /****************************************************************
2372 : ****************************************************************/
2373 :
2374 0 : WERROR _netr_DsRGetDCNameEx(struct pipes_struct *p,
2375 : struct netr_DsRGetDCNameEx *r)
2376 : {
2377 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2378 0 : return WERR_NOT_SUPPORTED;
2379 : }
2380 :
2381 : /****************************************************************
2382 : ****************************************************************/
2383 :
2384 0 : WERROR _netr_DsRGetSiteName(struct pipes_struct *p,
2385 : struct netr_DsRGetSiteName *r)
2386 : {
2387 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2388 0 : return WERR_NOT_SUPPORTED;
2389 : }
2390 :
2391 : /****************************************************************
2392 : ****************************************************************/
2393 :
2394 0 : NTSTATUS _netr_LogonGetDomainInfo(struct pipes_struct *p,
2395 : struct netr_LogonGetDomainInfo *r)
2396 : {
2397 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2398 0 : return NT_STATUS_NOT_IMPLEMENTED;
2399 : }
2400 :
2401 : /****************************************************************
2402 : ****************************************************************/
2403 :
2404 0 : NTSTATUS _netr_ServerPasswordGet(struct pipes_struct *p,
2405 : struct netr_ServerPasswordGet *r)
2406 : {
2407 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2408 0 : return NT_STATUS_NOT_SUPPORTED;
2409 : }
2410 :
2411 : /****************************************************************
2412 : ****************************************************************/
2413 :
2414 0 : NTSTATUS _netr_NetrLogonSendToSam(struct pipes_struct *p,
2415 : struct netr_NetrLogonSendToSam *r)
2416 : {
2417 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2418 0 : return NT_STATUS_NOT_IMPLEMENTED;
2419 : }
2420 :
2421 : /****************************************************************
2422 : ****************************************************************/
2423 :
2424 0 : WERROR _netr_DsRAddressToSitenamesW(struct pipes_struct *p,
2425 : struct netr_DsRAddressToSitenamesW *r)
2426 : {
2427 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2428 0 : return WERR_NOT_SUPPORTED;
2429 : }
2430 :
2431 : /****************************************************************
2432 : ****************************************************************/
2433 :
2434 0 : WERROR _netr_DsRGetDCNameEx2(struct pipes_struct *p,
2435 : struct netr_DsRGetDCNameEx2 *r)
2436 : {
2437 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2438 0 : return WERR_NOT_SUPPORTED;
2439 : }
2440 :
2441 : /****************************************************************
2442 : ****************************************************************/
2443 :
2444 0 : WERROR _netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN(struct pipes_struct *p,
2445 : struct netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN *r)
2446 : {
2447 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2448 0 : return WERR_NOT_SUPPORTED;
2449 : }
2450 :
2451 : /****************************************************************
2452 : ****************************************************************/
2453 :
2454 0 : WERROR _netr_NetrEnumerateTrustedDomainsEx(struct pipes_struct *p,
2455 : struct netr_NetrEnumerateTrustedDomainsEx *r)
2456 : {
2457 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2458 0 : return WERR_NOT_SUPPORTED;
2459 : }
2460 :
2461 : /****************************************************************
2462 : ****************************************************************/
2463 :
2464 0 : WERROR _netr_DsRAddressToSitenamesExW(struct pipes_struct *p,
2465 : struct netr_DsRAddressToSitenamesExW *r)
2466 : {
2467 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2468 0 : return WERR_NOT_SUPPORTED;
2469 : }
2470 :
2471 : /****************************************************************
2472 : ****************************************************************/
2473 :
2474 0 : WERROR _netr_DsrGetDcSiteCoverageW(struct pipes_struct *p,
2475 : struct netr_DsrGetDcSiteCoverageW *r)
2476 : {
2477 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2478 0 : return WERR_NOT_SUPPORTED;
2479 : }
2480 :
2481 : /****************************************************************
2482 : ****************************************************************/
2483 :
2484 0 : WERROR _netr_DsrEnumerateDomainTrusts(struct pipes_struct *p,
2485 : struct netr_DsrEnumerateDomainTrusts *r)
2486 : {
2487 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2488 0 : return WERR_NOT_SUPPORTED;
2489 : }
2490 :
2491 : /****************************************************************
2492 : ****************************************************************/
2493 :
2494 0 : WERROR _netr_DsrDeregisterDNSHostRecords(struct pipes_struct *p,
2495 : struct netr_DsrDeregisterDNSHostRecords *r)
2496 : {
2497 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2498 0 : return WERR_NOT_SUPPORTED;
2499 : }
2500 :
2501 : /****************************************************************
2502 : ****************************************************************/
2503 :
2504 0 : NTSTATUS _netr_ServerTrustPasswordsGet(struct pipes_struct *p,
2505 : struct netr_ServerTrustPasswordsGet *r)
2506 : {
2507 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2508 0 : return NT_STATUS_NOT_IMPLEMENTED;
2509 : }
2510 :
2511 : /****************************************************************
2512 : ****************************************************************/
2513 :
2514 0 : static NTSTATUS fill_forest_trust_array(TALLOC_CTX *mem_ctx,
2515 : struct lsa_ForestTrustInformation *info)
2516 : {
2517 : struct lsa_ForestTrustRecord *e;
2518 : struct pdb_domain_info *dom_info;
2519 : struct lsa_ForestTrustDomainInfo *domain_info;
2520 0 : char **upn_suffixes = NULL;
2521 0 : uint32_t num_suffixes = 0;
2522 0 : uint32_t i = 0;
2523 : NTSTATUS status;
2524 :
2525 0 : dom_info = pdb_get_domain_info(mem_ctx);
2526 0 : if (dom_info == NULL) {
2527 0 : return NT_STATUS_NO_MEMORY;
2528 : }
2529 :
2530 0 : info->count = 2;
2531 :
2532 0 : become_root();
2533 0 : status = pdb_enum_upn_suffixes(info, &num_suffixes, &upn_suffixes);
2534 0 : unbecome_root();
2535 0 : if (NT_STATUS_IS_OK(status) && (num_suffixes > 0)) {
2536 0 : info->count += num_suffixes;
2537 : }
2538 :
2539 0 : info->entries = talloc_array(info, struct lsa_ForestTrustRecord *, info->count);
2540 0 : if (info->entries == NULL) {
2541 0 : return NT_STATUS_NO_MEMORY;
2542 : }
2543 :
2544 0 : e = talloc(info, struct lsa_ForestTrustRecord);
2545 0 : if (e == NULL) {
2546 0 : return NT_STATUS_NO_MEMORY;
2547 : }
2548 :
2549 0 : e->flags = 0;
2550 0 : e->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME;
2551 0 : e->time = 0; /* so far always 0 in trces. */
2552 0 : e->forest_trust_data.top_level_name.string = talloc_steal(info,
2553 : dom_info->dns_forest);
2554 :
2555 0 : info->entries[0] = e;
2556 :
2557 0 : if (num_suffixes > 0) {
2558 0 : for (i = 0; i < num_suffixes ; i++) {
2559 0 : e = talloc(info, struct lsa_ForestTrustRecord);
2560 0 : if (e == NULL) {
2561 0 : return NT_STATUS_NO_MEMORY;
2562 : }
2563 :
2564 0 : e->flags = 0;
2565 0 : e->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME;
2566 0 : e->time = 0; /* so far always 0 in traces. */
2567 0 : e->forest_trust_data.top_level_name.string = upn_suffixes[i];
2568 0 : info->entries[1 + i] = e;
2569 : }
2570 : }
2571 :
2572 0 : e = talloc(info, struct lsa_ForestTrustRecord);
2573 0 : if (e == NULL) {
2574 0 : return NT_STATUS_NO_MEMORY;
2575 : }
2576 :
2577 : /* TODO: check if disabled and set flags accordingly */
2578 0 : e->flags = 0;
2579 0 : e->type = LSA_FOREST_TRUST_DOMAIN_INFO;
2580 0 : e->time = 0; /* so far always 0 in traces. */
2581 :
2582 0 : domain_info = &e->forest_trust_data.domain_info;
2583 0 : domain_info->domain_sid = dom_sid_dup(info, &dom_info->sid);
2584 :
2585 0 : domain_info->dns_domain_name.string = talloc_steal(info,
2586 : dom_info->dns_domain);
2587 0 : domain_info->netbios_domain_name.string = talloc_steal(info,
2588 : dom_info->name);
2589 :
2590 0 : info->entries[info->count - 1] = e;
2591 :
2592 0 : return NT_STATUS_OK;
2593 : }
2594 :
2595 : /****************************************************************
2596 : ****************************************************************/
2597 :
2598 0 : WERROR _netr_DsRGetForestTrustInformation(struct pipes_struct *p,
2599 : struct netr_DsRGetForestTrustInformation *r)
2600 : {
2601 0 : struct dcesrv_call_state *dce_call = p->dce_call;
2602 0 : struct auth_session_info *session_info =
2603 0 : dcesrv_call_session_info(dce_call);
2604 : NTSTATUS status;
2605 : struct lsa_ForestTrustInformation *info, **info_ptr;
2606 : enum security_user_level security_level;
2607 :
2608 0 : security_level = security_session_user_level(session_info, NULL);
2609 0 : if (security_level < SECURITY_USER) {
2610 0 : return WERR_ACCESS_DENIED;
2611 : }
2612 :
2613 0 : if (r->in.flags & (~DS_GFTI_UPDATE_TDO)) {
2614 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2615 0 : return WERR_INVALID_FLAGS;
2616 : }
2617 :
2618 0 : if ((r->in.flags & DS_GFTI_UPDATE_TDO) && (lp_server_role() != ROLE_DOMAIN_PDC)) {
2619 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2620 0 : return WERR_NERR_NOTPRIMARY;
2621 : }
2622 :
2623 0 : if ((r->in.trusted_domain_name == NULL) && (r->in.flags & DS_GFTI_UPDATE_TDO)) {
2624 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2625 0 : return WERR_INVALID_PARAMETER;
2626 : }
2627 :
2628 : /* retrieve forest trust information and stop further processing */
2629 0 : if (r->in.trusted_domain_name == NULL) {
2630 0 : info_ptr = talloc(p->mem_ctx, struct lsa_ForestTrustInformation *);
2631 0 : if (info_ptr == NULL) {
2632 0 : p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2633 0 : return WERR_NOT_ENOUGH_MEMORY;
2634 : }
2635 0 : info = talloc_zero(info_ptr, struct lsa_ForestTrustInformation);
2636 0 : if (info == NULL) {
2637 0 : p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2638 0 : return WERR_NOT_ENOUGH_MEMORY;
2639 : }
2640 :
2641 : /* Fill forest trust information and expand UPN suffixes list */
2642 0 : status = fill_forest_trust_array(p->mem_ctx, info);
2643 0 : if (!NT_STATUS_IS_OK(status)) {
2644 0 : p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2645 0 : return WERR_NOT_ENOUGH_MEMORY;
2646 : }
2647 :
2648 0 : *info_ptr = info;
2649 0 : r->out.forest_trust_info = info_ptr;
2650 :
2651 0 : return WERR_OK;
2652 :
2653 : }
2654 :
2655 : /* TODO: implement remaining parts of DsrGetForestTrustInformation (opnum 43)
2656 : * when trusted_domain_name is not NULL */
2657 :
2658 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2659 0 : return WERR_NOT_SUPPORTED;
2660 : }
2661 :
2662 : /****************************************************************
2663 : _netr_GetForestTrustInformation
2664 : ****************************************************************/
2665 :
2666 0 : NTSTATUS _netr_GetForestTrustInformation(struct pipes_struct *p,
2667 : struct netr_GetForestTrustInformation *r)
2668 : {
2669 : NTSTATUS status;
2670 : struct netlogon_creds_CredentialState *creds;
2671 : struct lsa_ForestTrustInformation *info, **info_ptr;
2672 :
2673 : /* TODO: check server name */
2674 :
2675 0 : become_root();
2676 0 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
2677 : p->mem_ctx,
2678 : r->in.computer_name,
2679 : r->in.credential,
2680 : r->out.return_authenticator,
2681 : &creds);
2682 0 : unbecome_root();
2683 0 : if (!NT_STATUS_IS_OK(status)) {
2684 0 : return status;
2685 : }
2686 :
2687 0 : if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) &&
2688 0 : (creds->secure_channel_type != SEC_CHAN_DOMAIN)) {
2689 0 : return NT_STATUS_NOT_IMPLEMENTED;
2690 : }
2691 :
2692 0 : info_ptr = talloc(p->mem_ctx, struct lsa_ForestTrustInformation *);
2693 0 : if (!info_ptr) {
2694 0 : return NT_STATUS_NO_MEMORY;
2695 : }
2696 0 : info = talloc_zero(info_ptr, struct lsa_ForestTrustInformation);
2697 0 : if (!info) {
2698 0 : return NT_STATUS_NO_MEMORY;
2699 : }
2700 :
2701 : /* Fill forest trust information, do expand UPN suffixes list */
2702 0 : status = fill_forest_trust_array(p->mem_ctx, info);
2703 0 : if (!NT_STATUS_IS_OK(status)) {
2704 0 : return status;
2705 : }
2706 :
2707 0 : *info_ptr = info;
2708 0 : r->out.forest_trust_info = info_ptr;
2709 :
2710 0 : return NT_STATUS_OK;
2711 : }
2712 :
2713 : /****************************************************************
2714 : ****************************************************************/
2715 :
2716 0 : static NTSTATUS get_password_from_trustAuth(TALLOC_CTX *mem_ctx,
2717 : const DATA_BLOB *trustAuth_blob,
2718 : struct netlogon_creds_CredentialState *creds,
2719 : struct samr_Password *current_pw_enc,
2720 : struct samr_Password *previous_pw_enc)
2721 : {
2722 : enum ndr_err_code ndr_err;
2723 : struct trustAuthInOutBlob trustAuth;
2724 : NTSTATUS status;
2725 :
2726 0 : ndr_err = ndr_pull_struct_blob_all(trustAuth_blob, mem_ctx, &trustAuth,
2727 : (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2728 0 : if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2729 0 : return NT_STATUS_UNSUCCESSFUL;
2730 : }
2731 :
2732 0 : if (trustAuth.count != 0 && trustAuth.current.count != 0 &&
2733 0 : trustAuth.current.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) {
2734 0 : mdfour(current_pw_enc->hash,
2735 0 : trustAuth.current.array[0].AuthInfo.clear.password,
2736 0 : trustAuth.current.array[0].AuthInfo.clear.size);
2737 0 : status = netlogon_creds_des_encrypt(creds, current_pw_enc);
2738 0 : if (!NT_STATUS_IS_OK(status)) {
2739 0 : return status;
2740 : }
2741 : } else {
2742 0 : return NT_STATUS_UNSUCCESSFUL;
2743 : }
2744 :
2745 :
2746 0 : if (trustAuth.previous.count != 0 &&
2747 0 : trustAuth.previous.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) {
2748 0 : mdfour(previous_pw_enc->hash,
2749 0 : trustAuth.previous.array[0].AuthInfo.clear.password,
2750 0 : trustAuth.previous.array[0].AuthInfo.clear.size);
2751 0 : status = netlogon_creds_des_encrypt(creds, previous_pw_enc);
2752 0 : if (!NT_STATUS_IS_OK(status)) {
2753 0 : return status;
2754 : }
2755 : } else {
2756 0 : ZERO_STRUCTP(previous_pw_enc);
2757 : }
2758 :
2759 0 : return NT_STATUS_OK;
2760 : }
2761 :
2762 : /****************************************************************
2763 : _netr_ServerGetTrustInfo
2764 : ****************************************************************/
2765 :
2766 0 : NTSTATUS _netr_ServerGetTrustInfo(struct pipes_struct *p,
2767 : struct netr_ServerGetTrustInfo *r)
2768 : {
2769 : NTSTATUS status;
2770 : struct netlogon_creds_CredentialState *creds;
2771 : char *account_name;
2772 : size_t account_name_last;
2773 : bool trusted;
2774 : struct netr_TrustInfo *trust_info;
2775 : struct pdb_trusted_domain *td;
2776 :
2777 : /* TODO: check server name */
2778 :
2779 0 : become_root();
2780 0 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
2781 : p->mem_ctx,
2782 : r->in.computer_name,
2783 : r->in.credential,
2784 : r->out.return_authenticator,
2785 : &creds);
2786 0 : unbecome_root();
2787 0 : if (!NT_STATUS_IS_OK(status)) {
2788 0 : return status;
2789 : }
2790 :
2791 0 : account_name = talloc_strdup(p->mem_ctx, r->in.account_name);
2792 0 : if (account_name == NULL) {
2793 0 : return NT_STATUS_NO_MEMORY;
2794 : }
2795 :
2796 0 : account_name_last = strlen(account_name);
2797 0 : if (account_name_last == 0) {
2798 0 : return NT_STATUS_INVALID_PARAMETER;
2799 : }
2800 0 : account_name_last--;
2801 0 : if (account_name[account_name_last] == '.') {
2802 0 : account_name[account_name_last] = '\0';
2803 : }
2804 :
2805 0 : if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) &&
2806 0 : (creds->secure_channel_type != SEC_CHAN_DOMAIN)) {
2807 0 : trusted = false;
2808 : } else {
2809 0 : trusted = true;
2810 : }
2811 :
2812 :
2813 0 : if (trusted) {
2814 0 : account_name_last = strlen(account_name);
2815 0 : if (account_name_last == 0) {
2816 0 : return NT_STATUS_INVALID_PARAMETER;
2817 : }
2818 0 : account_name_last--;
2819 0 : if (account_name[account_name_last] == '$') {
2820 0 : account_name[account_name_last] = '\0';
2821 : }
2822 :
2823 0 : status = pdb_get_trusted_domain(p->mem_ctx, account_name, &td);
2824 0 : if (!NT_STATUS_IS_OK(status)) {
2825 0 : return status;
2826 : }
2827 :
2828 0 : if (r->out.trust_info != NULL) {
2829 0 : trust_info = talloc_zero(p->mem_ctx, struct netr_TrustInfo);
2830 0 : if (trust_info == NULL) {
2831 0 : return NT_STATUS_NO_MEMORY;
2832 : }
2833 0 : trust_info->count = 1;
2834 :
2835 0 : trust_info->data = talloc_array(trust_info, uint32_t, 1);
2836 0 : if (trust_info->data == NULL) {
2837 0 : return NT_STATUS_NO_MEMORY;
2838 : }
2839 0 : trust_info->data[0] = td->trust_attributes;
2840 :
2841 0 : *r->out.trust_info = trust_info;
2842 : }
2843 :
2844 0 : if (td->trust_auth_incoming.data == NULL) {
2845 0 : return NT_STATUS_INVALID_PARAMETER;
2846 : }
2847 :
2848 0 : status = get_password_from_trustAuth(p->mem_ctx,
2849 0 : &td->trust_auth_incoming,
2850 : creds,
2851 : r->out.new_owf_password,
2852 : r->out.old_owf_password);
2853 :
2854 0 : if (!NT_STATUS_IS_OK(status)) {
2855 0 : return status;
2856 : }
2857 :
2858 : } else {
2859 : /* TODO: look for machine password */
2860 0 : ZERO_STRUCTP(r->out.new_owf_password);
2861 0 : ZERO_STRUCTP(r->out.old_owf_password);
2862 :
2863 0 : return NT_STATUS_NOT_IMPLEMENTED;
2864 : }
2865 :
2866 0 : return NT_STATUS_OK;
2867 : }
2868 :
2869 : /****************************************************************
2870 : ****************************************************************/
2871 :
2872 0 : NTSTATUS _netr_Unused47(struct pipes_struct *p,
2873 : struct netr_Unused47 *r)
2874 : {
2875 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2876 0 : return NT_STATUS_NOT_IMPLEMENTED;
2877 : }
2878 :
2879 : /****************************************************************
2880 : ****************************************************************/
2881 :
2882 0 : NTSTATUS _netr_DsrUpdateReadOnlyServerDnsRecords(struct pipes_struct *p,
2883 : struct netr_DsrUpdateReadOnlyServerDnsRecords *r)
2884 : {
2885 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2886 0 : return NT_STATUS_NOT_IMPLEMENTED;
2887 : }
2888 :
2889 : /*
2890 : * Define the bind function that will be used by ndr_netlogon_scompat.c,
2891 : * included at the bottom of this file.
2892 : */
2893 : #define DCESRV_INTERFACE_NETLOGON_BIND(context, iface) \
2894 : dcesrv_interface_netlogon_bind(context, iface)
2895 :
2896 10 : static NTSTATUS dcesrv_interface_netlogon_bind(struct dcesrv_connection_context *context,
2897 : const struct dcesrv_interface *iface)
2898 : {
2899 10 : struct loadparm_context *lp_ctx = context->conn->dce_ctx->lp_ctx;
2900 10 : int schannel = lpcfg_server_schannel(lp_ctx);
2901 10 : bool schannel_global_required = (schannel == true);
2902 10 : bool global_require_seal = lpcfg_server_schannel_require_seal(lp_ctx);
2903 : static bool warned_global_schannel_once = false;
2904 : static bool warned_global_seal_once = false;
2905 :
2906 10 : if (!schannel_global_required && !warned_global_schannel_once) {
2907 : /*
2908 : * We want admins to notice their misconfiguration!
2909 : */
2910 0 : D_ERR("CVE-2020-1472(ZeroLogon): "
2911 : "Please configure 'server schannel = yes' (the default), "
2912 : "See https://bugzilla.samba.org/show_bug.cgi?id=14497\n");
2913 0 : warned_global_schannel_once = true;
2914 : }
2915 :
2916 10 : if (!global_require_seal && !warned_global_seal_once) {
2917 : /*
2918 : * We want admins to notice their misconfiguration!
2919 : */
2920 0 : D_ERR("CVE-2022-38023 (and others): "
2921 : "Please configure 'server schannel require seal = yes' (the default), "
2922 : "See https://bugzilla.samba.org/show_bug.cgi?id=15240\n");
2923 0 : warned_global_seal_once = true;
2924 : }
2925 :
2926 10 : return NT_STATUS_OK;
2927 : }
2928 :
2929 : /* include the generated boilerplate */
2930 : #include "librpc/gen_ndr/ndr_netlogon_scompat.c"
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