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 : #undef DBGC_CLASS
57 : #define DBGC_CLASS DBGC_RPC_SRV
58 :
59 : /*************************************************************************
60 : _netr_LogonControl
61 : *************************************************************************/
62 :
63 331 : WERROR _netr_LogonControl(struct pipes_struct *p,
64 : struct netr_LogonControl *r)
65 : {
66 0 : struct netr_LogonControl2Ex l;
67 :
68 331 : switch (r->in.level) {
69 80 : case 1:
70 80 : break;
71 86 : case 2:
72 251 : return WERR_NOT_SUPPORTED;
73 165 : default:
74 165 : return WERR_INVALID_LEVEL;
75 : }
76 :
77 80 : switch (r->in.function_code) {
78 35 : case NETLOGON_CONTROL_QUERY:
79 : case NETLOGON_CONTROL_REPLICATE:
80 : case NETLOGON_CONTROL_SYNCHRONIZE:
81 : case NETLOGON_CONTROL_PDC_REPLICATE:
82 : case NETLOGON_CONTROL_BREAKPOINT:
83 : case NETLOGON_CONTROL_BACKUP_CHANGE_LOG:
84 : case NETLOGON_CONTROL_TRUNCATE_LOG:
85 35 : break;
86 45 : default:
87 45 : return WERR_NOT_SUPPORTED;
88 : }
89 :
90 35 : l.in.logon_server = r->in.logon_server;
91 35 : l.in.function_code = r->in.function_code;
92 35 : l.in.level = r->in.level;
93 35 : l.in.data = NULL;
94 35 : l.out.query = r->out.query;
95 :
96 35 : return _netr_LogonControl2Ex(p, &l);
97 : }
98 :
99 : /*************************************************************************
100 : _netr_LogonControl2
101 : *************************************************************************/
102 :
103 70 : WERROR _netr_LogonControl2(struct pipes_struct *p,
104 : struct netr_LogonControl2 *r)
105 : {
106 0 : struct netr_LogonControl2Ex l;
107 :
108 70 : l.in.logon_server = r->in.logon_server;
109 70 : l.in.function_code = r->in.function_code;
110 70 : l.in.level = r->in.level;
111 70 : l.in.data = r->in.data;
112 70 : l.out.query = r->out.query;
113 :
114 70 : return _netr_LogonControl2Ex(p, &l);
115 : }
116 :
117 : /*************************************************************************
118 : *************************************************************************/
119 :
120 0 : static bool wb_change_trust_creds(const char *domain, WERROR *tc_status)
121 : {
122 0 : wbcErr result;
123 0 : struct wbcAuthErrorInfo *error = NULL;
124 :
125 0 : result = wbcChangeTrustCredentials(domain, &error);
126 0 : switch (result) {
127 0 : case WBC_ERR_WINBIND_NOT_AVAILABLE:
128 0 : return false;
129 0 : case WBC_ERR_DOMAIN_NOT_FOUND:
130 0 : *tc_status = WERR_NO_SUCH_DOMAIN;
131 0 : return true;
132 0 : case WBC_ERR_SUCCESS:
133 0 : *tc_status = WERR_OK;
134 0 : return true;
135 0 : default:
136 0 : break;
137 : }
138 :
139 0 : if (error && error->nt_status != 0) {
140 0 : *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status));
141 : } else {
142 0 : *tc_status = WERR_TRUST_FAILURE;
143 : }
144 0 : wbcFreeMemory(error);
145 0 : return true;
146 : }
147 :
148 : /*************************************************************************
149 : *************************************************************************/
150 :
151 0 : static bool wb_check_trust_creds(const char *domain, WERROR *tc_status)
152 : {
153 0 : wbcErr result;
154 0 : struct wbcAuthErrorInfo *error = NULL;
155 :
156 0 : result = wbcCheckTrustCredentials(domain, &error);
157 0 : switch (result) {
158 0 : case WBC_ERR_WINBIND_NOT_AVAILABLE:
159 0 : return false;
160 0 : case WBC_ERR_DOMAIN_NOT_FOUND:
161 0 : *tc_status = WERR_NO_SUCH_DOMAIN;
162 0 : return true;
163 0 : case WBC_ERR_SUCCESS:
164 0 : *tc_status = WERR_OK;
165 0 : return true;
166 0 : default:
167 0 : break;
168 : }
169 :
170 0 : if (error && error->nt_status != 0) {
171 0 : *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status));
172 : } else {
173 0 : *tc_status = WERR_TRUST_FAILURE;
174 : }
175 0 : wbcFreeMemory(error);
176 0 : return true;
177 : }
178 :
179 : /****************************************************************
180 : _netr_LogonControl2Ex
181 : ****************************************************************/
182 :
183 175 : WERROR _netr_LogonControl2Ex(struct pipes_struct *p,
184 : struct netr_LogonControl2Ex *r)
185 : {
186 175 : struct dcesrv_call_state *dce_call = p->dce_call;
187 0 : struct auth_session_info *session_info =
188 175 : dcesrv_call_session_info(dce_call);
189 175 : uint32_t flags = 0x0;
190 175 : WERROR pdc_connection_status = WERR_OK;
191 175 : uint32_t logon_attempts = 0x0;
192 0 : WERROR tc_status;
193 0 : fstring dc_name2;
194 175 : const char *dc_name = NULL;
195 0 : struct sockaddr_storage dc_ss;
196 175 : const char *domain = NULL;
197 0 : struct netr_NETLOGON_INFO_1 *info1;
198 0 : struct netr_NETLOGON_INFO_2 *info2;
199 0 : struct netr_NETLOGON_INFO_3 *info3;
200 0 : struct netr_NETLOGON_INFO_4 *info4;
201 0 : const char *fn;
202 0 : NTSTATUS status;
203 0 : struct netr_DsRGetDCNameInfo *dc_info;
204 :
205 175 : switch (dce_call->pkt.u.request.opnum) {
206 35 : case NDR_NETR_LOGONCONTROL:
207 35 : fn = "_netr_LogonControl";
208 35 : break;
209 70 : case NDR_NETR_LOGONCONTROL2:
210 70 : fn = "_netr_LogonControl2";
211 70 : break;
212 70 : case NDR_NETR_LOGONCONTROL2EX:
213 70 : fn = "_netr_LogonControl2Ex";
214 70 : break;
215 0 : default:
216 0 : return WERR_INVALID_PARAMETER;
217 : }
218 :
219 175 : switch (r->in.level) {
220 165 : case 1:
221 : case 2:
222 : case 3:
223 : case 4:
224 165 : break;
225 10 : default:
226 10 : return WERR_INVALID_LEVEL;
227 : }
228 :
229 165 : switch (r->in.function_code) {
230 5 : case NETLOGON_CONTROL_QUERY:
231 5 : break;
232 160 : default:
233 160 : if ((geteuid() != sec_initial_uid()) &&
234 96 : !nt_token_check_domain_rid(
235 96 : session_info->security_token, DOMAIN_RID_ADMINS) &&
236 96 : !nt_token_check_sid(
237 : &global_sid_Builtin_Administrators,
238 96 : session_info->security_token))
239 : {
240 96 : return WERR_ACCESS_DENIED;
241 : }
242 64 : break;
243 : }
244 :
245 69 : tc_status = WERR_NO_SUCH_DOMAIN;
246 :
247 69 : switch (r->in.function_code) {
248 5 : case NETLOGON_CONTROL_QUERY:
249 5 : switch (r->in.level) {
250 5 : case 1:
251 : case 3:
252 5 : break;
253 0 : default:
254 0 : return WERR_INVALID_PARAMETER;
255 : }
256 :
257 5 : tc_status = WERR_OK;
258 5 : break;
259 24 : case NETLOGON_CONTROL_REPLICATE:
260 : case NETLOGON_CONTROL_SYNCHRONIZE:
261 : case NETLOGON_CONTROL_PDC_REPLICATE:
262 : case NETLOGON_CONTROL_BACKUP_CHANGE_LOG:
263 : case NETLOGON_CONTROL_BREAKPOINT:
264 : case NETLOGON_CONTROL_TRUNCATE_LOG:
265 : case NETLOGON_CONTROL_TRANSPORT_NOTIFY:
266 : case NETLOGON_CONTROL_FORCE_DNS_REG:
267 : case NETLOGON_CONTROL_QUERY_DNS_REG:
268 24 : return WERR_NOT_SUPPORTED;
269 :
270 0 : case NETLOGON_CONTROL_FIND_USER:
271 0 : if (!r->in.data || !r->in.data->user) {
272 0 : return WERR_NOT_SUPPORTED;
273 : }
274 0 : break;
275 12 : case NETLOGON_CONTROL_SET_DBFLAG:
276 12 : if (!r->in.data) {
277 0 : return WERR_NOT_SUPPORTED;
278 : }
279 12 : break;
280 0 : case NETLOGON_CONTROL_TC_VERIFY:
281 0 : if (!r->in.data || !r->in.data->domain) {
282 0 : return WERR_NOT_SUPPORTED;
283 : }
284 :
285 0 : if (!wb_check_trust_creds(r->in.data->domain, &tc_status)) {
286 0 : return WERR_NOT_SUPPORTED;
287 : }
288 0 : break;
289 12 : case NETLOGON_CONTROL_TC_QUERY:
290 12 : if (!r->in.data || !r->in.data->domain) {
291 0 : return WERR_NOT_SUPPORTED;
292 : }
293 :
294 12 : domain = r->in.data->domain;
295 :
296 12 : if (!is_trusted_domain(domain)) {
297 12 : break;
298 : }
299 :
300 0 : if (!get_dc_name(domain, NULL, dc_name2, &dc_ss)) {
301 0 : tc_status = WERR_NO_LOGON_SERVERS;
302 0 : break;
303 : }
304 :
305 0 : dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2);
306 0 : if (!dc_name) {
307 0 : return WERR_NOT_ENOUGH_MEMORY;
308 : }
309 :
310 0 : tc_status = WERR_OK;
311 :
312 0 : break;
313 :
314 12 : case NETLOGON_CONTROL_REDISCOVER:
315 12 : if (!r->in.data || !r->in.data->domain) {
316 0 : return WERR_NOT_SUPPORTED;
317 : }
318 :
319 12 : domain = r->in.data->domain;
320 :
321 12 : if (!is_trusted_domain(domain)) {
322 12 : break;
323 : }
324 :
325 0 : status = dsgetdcname(p->mem_ctx, p->msg_ctx, domain, NULL, NULL,
326 : DS_FORCE_REDISCOVERY | DS_RETURN_FLAT_NAME,
327 : &dc_info);
328 0 : if (!NT_STATUS_IS_OK(status)) {
329 0 : tc_status = WERR_NO_LOGON_SERVERS;
330 0 : break;
331 : }
332 :
333 0 : dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_info->dc_unc);
334 0 : if (!dc_name) {
335 0 : return WERR_NOT_ENOUGH_MEMORY;
336 : }
337 :
338 0 : tc_status = WERR_OK;
339 :
340 0 : break;
341 :
342 0 : case NETLOGON_CONTROL_CHANGE_PASSWORD:
343 0 : if (!r->in.data || !r->in.data->domain) {
344 0 : return WERR_NOT_SUPPORTED;
345 : }
346 :
347 0 : if (!wb_change_trust_creds(r->in.data->domain, &tc_status)) {
348 0 : return WERR_NOT_SUPPORTED;
349 : }
350 0 : break;
351 :
352 4 : default:
353 : /* no idea what this should be */
354 4 : DEBUG(0,("%s: unimplemented function level [%d]\n",
355 : fn, r->in.function_code));
356 4 : return WERR_NOT_SUPPORTED;
357 : }
358 :
359 : /* prepare the response */
360 :
361 41 : switch (r->in.level) {
362 17 : case 1:
363 17 : info1 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_1);
364 17 : W_ERROR_HAVE_NO_MEMORY(info1);
365 :
366 17 : info1->flags = flags;
367 17 : info1->pdc_connection_status = pdc_connection_status;
368 :
369 17 : r->out.query->info1 = info1;
370 17 : break;
371 12 : case 2:
372 12 : info2 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_2);
373 12 : W_ERROR_HAVE_NO_MEMORY(info2);
374 :
375 12 : info2->flags = flags;
376 12 : info2->pdc_connection_status = pdc_connection_status;
377 12 : info2->trusted_dc_name = dc_name;
378 12 : info2->tc_connection_status = tc_status;
379 :
380 12 : r->out.query->info2 = info2;
381 12 : break;
382 12 : case 3:
383 12 : info3 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_3);
384 12 : W_ERROR_HAVE_NO_MEMORY(info3);
385 :
386 12 : info3->flags = flags;
387 12 : info3->logon_attempts = logon_attempts;
388 :
389 12 : r->out.query->info3 = info3;
390 12 : break;
391 0 : case 4:
392 0 : info4 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_4);
393 0 : W_ERROR_HAVE_NO_MEMORY(info4);
394 :
395 0 : info4->trusted_dc_name = dc_name;
396 0 : info4->trusted_domain_name = r->in.data->domain;
397 :
398 0 : r->out.query->info4 = info4;
399 0 : break;
400 0 : default:
401 0 : return WERR_INVALID_LEVEL;
402 : }
403 :
404 41 : return WERR_OK;
405 : }
406 :
407 : /*************************************************************************
408 : _netr_NetrEnumerateTrustedDomains
409 : *************************************************************************/
410 :
411 0 : NTSTATUS _netr_NetrEnumerateTrustedDomains(struct pipes_struct *p,
412 : struct netr_NetrEnumerateTrustedDomains *r)
413 : {
414 0 : struct dcesrv_call_state *dce_call = p->dce_call;
415 0 : struct dcesrv_connection *dcesrv_conn = dce_call->conn;
416 0 : const struct tsocket_address *local_address =
417 0 : dcesrv_connection_get_local_address(dcesrv_conn);
418 0 : const struct tsocket_address *remote_address =
419 0 : dcesrv_connection_get_remote_address(dcesrv_conn);
420 0 : struct auth_session_info *session_info =
421 0 : dcesrv_call_session_info(dce_call);
422 0 : NTSTATUS status;
423 0 : NTSTATUS result = NT_STATUS_OK;
424 0 : DATA_BLOB blob;
425 0 : size_t num_domains = 0;
426 0 : const char **trusted_domains = NULL;
427 0 : struct lsa_DomainList domain_list;
428 0 : struct dcerpc_binding_handle *h = NULL;
429 0 : struct policy_handle pol;
430 0 : uint32_t enum_ctx = 0;
431 0 : uint32_t max_size = (uint32_t)-1;
432 :
433 0 : ZERO_STRUCT(pol);
434 0 : DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
435 :
436 0 : status = rpcint_binding_handle(p->mem_ctx,
437 : &ndr_table_lsarpc,
438 : remote_address,
439 : local_address,
440 : session_info,
441 : p->msg_ctx,
442 : &h);
443 0 : if (!NT_STATUS_IS_OK(status)) {
444 0 : return status;
445 : }
446 :
447 0 : status = dcerpc_lsa_open_policy2(h,
448 : p->mem_ctx,
449 : NULL,
450 : true,
451 : LSA_POLICY_VIEW_LOCAL_INFORMATION,
452 : &pol,
453 : &result);
454 0 : if (any_nt_status_not_ok(status, result, &status)) {
455 0 : goto out;
456 : }
457 :
458 0 : do {
459 0 : uint32_t i;
460 :
461 : /* Lookup list of trusted domains */
462 0 : status = dcerpc_lsa_EnumTrustDom(h,
463 : p->mem_ctx,
464 : &pol,
465 : &enum_ctx,
466 : &domain_list,
467 : max_size,
468 : &result);
469 0 : if (!NT_STATUS_IS_OK(status)) {
470 0 : goto out;
471 : }
472 0 : if (!NT_STATUS_IS_OK(result) &&
473 0 : !NT_STATUS_EQUAL(result, NT_STATUS_NO_MORE_ENTRIES) &&
474 0 : !NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) {
475 0 : status = result;
476 0 : goto out;
477 : }
478 :
479 0 : for (i = 0; i < domain_list.count; i++) {
480 0 : if (!add_string_to_array(p->mem_ctx, domain_list.domains[i].name.string,
481 : &trusted_domains, &num_domains)) {
482 0 : status = NT_STATUS_NO_MEMORY;
483 0 : goto out;
484 : }
485 : }
486 0 : } while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES));
487 :
488 0 : if (num_domains > 0) {
489 : /* multi sz terminate */
490 0 : trusted_domains = talloc_realloc(p->mem_ctx, trusted_domains, const char *, num_domains + 1);
491 0 : if (trusted_domains == NULL) {
492 0 : status = NT_STATUS_NO_MEMORY;
493 0 : goto out;
494 : }
495 :
496 0 : trusted_domains[num_domains] = NULL;
497 : }
498 :
499 0 : if (!push_reg_multi_sz(trusted_domains, &blob, trusted_domains)) {
500 0 : TALLOC_FREE(trusted_domains);
501 0 : status = NT_STATUS_NO_MEMORY;
502 0 : goto out;
503 : }
504 :
505 0 : r->out.trusted_domains_blob->data = blob.data;
506 0 : r->out.trusted_domains_blob->length = blob.length;
507 :
508 0 : DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
509 :
510 0 : status = NT_STATUS_OK;
511 :
512 0 : out:
513 0 : if (is_valid_policy_hnd(&pol)) {
514 0 : dcerpc_lsa_Close(h, p->mem_ctx, &pol, &result);
515 : }
516 :
517 0 : return status;
518 : }
519 :
520 : /*************************************************************************
521 : *************************************************************************/
522 :
523 121 : static NTSTATUS samr_find_machine_account(TALLOC_CTX *mem_ctx,
524 : struct dcerpc_binding_handle *b,
525 : const char *account_name,
526 : uint32_t access_mask,
527 : struct dom_sid2 **domain_sid_p,
528 : uint32_t *user_rid_p,
529 : struct policy_handle *user_handle)
530 : {
531 0 : NTSTATUS status;
532 121 : NTSTATUS result = NT_STATUS_OK;
533 0 : struct policy_handle connect_handle;
534 121 : struct policy_handle domain_handle = { 0, };
535 0 : struct lsa_String domain_name;
536 0 : struct dom_sid2 *domain_sid;
537 0 : struct lsa_String names;
538 0 : struct samr_Ids rids;
539 0 : struct samr_Ids types;
540 0 : uint32_t rid;
541 :
542 121 : status = dcerpc_samr_Connect2(b, mem_ctx,
543 : lp_netbios_name(),
544 : SAMR_ACCESS_CONNECT_TO_SERVER |
545 : SAMR_ACCESS_ENUM_DOMAINS |
546 : SAMR_ACCESS_LOOKUP_DOMAIN,
547 : &connect_handle,
548 : &result);
549 121 : if (any_nt_status_not_ok(status, result, &status)) {
550 0 : goto out;
551 : }
552 :
553 121 : init_lsa_String(&domain_name, get_global_sam_name());
554 :
555 121 : status = dcerpc_samr_LookupDomain(b, mem_ctx,
556 : &connect_handle,
557 : &domain_name,
558 : &domain_sid,
559 : &result);
560 121 : if (any_nt_status_not_ok(status, result, &status)) {
561 0 : goto out;
562 : }
563 :
564 121 : status = dcerpc_samr_OpenDomain(b, mem_ctx,
565 : &connect_handle,
566 : SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
567 : domain_sid,
568 : &domain_handle,
569 : &result);
570 121 : if (any_nt_status_not_ok(status, result, &status)) {
571 0 : goto out;
572 : }
573 :
574 121 : init_lsa_String(&names, account_name);
575 :
576 121 : status = dcerpc_samr_LookupNames(b, mem_ctx,
577 : &domain_handle,
578 : 1,
579 : &names,
580 : &rids,
581 : &types,
582 : &result);
583 121 : if (any_nt_status_not_ok(status, result, &status)) {
584 8 : goto out;
585 : }
586 :
587 113 : if (rids.count != 1) {
588 0 : status = NT_STATUS_NO_SUCH_USER;
589 0 : goto out;
590 : }
591 113 : if (types.count != 1) {
592 0 : status = NT_STATUS_INVALID_PARAMETER;
593 0 : goto out;
594 : }
595 113 : if (types.ids[0] != SID_NAME_USER) {
596 0 : status = NT_STATUS_NO_SUCH_USER;
597 0 : goto out;
598 : }
599 :
600 113 : rid = rids.ids[0];
601 :
602 113 : status = dcerpc_samr_OpenUser(b, mem_ctx,
603 : &domain_handle,
604 : access_mask,
605 : rid,
606 : user_handle,
607 : &result);
608 113 : if (any_nt_status_not_ok(status, result, &status)) {
609 0 : goto out;
610 : }
611 :
612 113 : if (user_rid_p) {
613 113 : *user_rid_p = rid;
614 : }
615 :
616 113 : if (domain_sid_p) {
617 113 : *domain_sid_p = domain_sid;
618 : }
619 :
620 0 : out:
621 121 : if (is_valid_policy_hnd(&domain_handle)) {
622 121 : dcerpc_samr_Close(b, mem_ctx, &domain_handle, &result);
623 : }
624 121 : if (is_valid_policy_hnd(&connect_handle)) {
625 121 : dcerpc_samr_Close(b, mem_ctx, &connect_handle, &result);
626 : }
627 :
628 121 : return status;
629 : }
630 :
631 : /******************************************************************
632 : gets a machine password entry. checks access rights of the host.
633 : ******************************************************************/
634 :
635 121 : static NTSTATUS get_md4pw(struct samr_Password *md4pw, const char *mach_acct,
636 : enum netr_SchannelType sec_chan_type,
637 : struct dom_sid *sid,
638 : struct messaging_context *msg_ctx)
639 : {
640 0 : NTSTATUS status;
641 121 : NTSTATUS result = NT_STATUS_OK;
642 121 : TALLOC_CTX *mem_ctx = NULL;
643 121 : struct dcerpc_binding_handle *h = NULL;
644 121 : struct tsocket_address *local = NULL;
645 121 : struct policy_handle user_handle = { .handle_type = 0 };
646 121 : uint32_t user_rid = UINT32_MAX;
647 121 : struct dom_sid *domain_sid = NULL;
648 121 : uint32_t acct_ctrl = 0;
649 121 : union samr_UserInfo *info = NULL;
650 121 : struct auth_session_info *session_info = NULL;
651 0 : int rc;
652 :
653 : #if 0
654 :
655 : /*
656 : * Currently this code is redundant as we already have a filter
657 : * by hostname list. What this code really needs to do is to
658 : * get a hosts allowed/hosts denied list from the SAM database
659 : * on a per user basis, and make the access decision there.
660 : * I will leave this code here for now as a reminder to implement
661 : * this at a later date. JRA.
662 : */
663 :
664 : if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(),
665 : p->client_id.name,
666 : p->client_id.addr)) {
667 : DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct));
668 : return False;
669 : }
670 : #endif /* 0 */
671 :
672 121 : mem_ctx = talloc_stackframe();
673 :
674 121 : status = make_session_info_system(mem_ctx, &session_info);
675 121 : if (!NT_STATUS_IS_OK(status)) {
676 0 : goto out;
677 : }
678 :
679 121 : ZERO_STRUCT(user_handle);
680 :
681 121 : rc = tsocket_address_inet_from_strings(mem_ctx,
682 : "ip",
683 : "127.0.0.1",
684 : 0,
685 : &local);
686 121 : if (rc < 0) {
687 0 : status = NT_STATUS_NO_MEMORY;
688 0 : goto out;
689 : }
690 :
691 121 : status = rpcint_binding_handle(mem_ctx,
692 : &ndr_table_samr,
693 : local,
694 : NULL,
695 : session_info,
696 : msg_ctx,
697 : &h);
698 121 : if (!NT_STATUS_IS_OK(status)) {
699 0 : goto out;
700 : }
701 :
702 121 : status = samr_find_machine_account(mem_ctx, h, mach_acct,
703 : SEC_FLAG_MAXIMUM_ALLOWED,
704 : &domain_sid, &user_rid,
705 : &user_handle);
706 121 : if (!NT_STATUS_IS_OK(status)) {
707 8 : goto out;
708 : }
709 :
710 113 : status = dcerpc_samr_QueryUserInfo2(h,
711 : mem_ctx,
712 : &user_handle,
713 : UserControlInformation,
714 : &info,
715 : &result);
716 113 : if (any_nt_status_not_ok(status, result, &status)) {
717 0 : goto out;
718 : }
719 :
720 113 : acct_ctrl = info->info16.acct_flags;
721 :
722 113 : if (acct_ctrl & ACB_DISABLED) {
723 0 : DEBUG(0,("get_md4pw: Workstation %s: account is disabled\n", mach_acct));
724 0 : status = NT_STATUS_ACCOUNT_DISABLED;
725 0 : goto out;
726 : }
727 :
728 113 : if (!(acct_ctrl & ACB_SVRTRUST) &&
729 64 : !(acct_ctrl & ACB_WSTRUST) &&
730 0 : !(acct_ctrl & ACB_DOMTRUST))
731 : {
732 0 : DEBUG(0,("get_md4pw: Workstation %s: account is not a trust account\n", mach_acct));
733 0 : status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
734 0 : goto out;
735 : }
736 :
737 113 : switch (sec_chan_type) {
738 49 : case SEC_CHAN_BDC:
739 49 : if (!(acct_ctrl & ACB_SVRTRUST)) {
740 0 : DEBUG(0,("get_md4pw: Workstation %s: BDC secure channel requested "
741 : "but not a server trust account\n", mach_acct));
742 0 : status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
743 0 : goto out;
744 : }
745 49 : break;
746 64 : case SEC_CHAN_WKSTA:
747 64 : if (!(acct_ctrl & ACB_WSTRUST)) {
748 0 : DEBUG(0,("get_md4pw: Workstation %s: WORKSTATION secure channel requested "
749 : "but not a workstation trust account\n", mach_acct));
750 0 : status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
751 0 : goto out;
752 : }
753 64 : break;
754 0 : case SEC_CHAN_DOMAIN:
755 0 : if (!(acct_ctrl & ACB_DOMTRUST)) {
756 0 : DEBUG(0,("get_md4pw: Workstation %s: DOMAIN secure channel requested "
757 : "but not a interdomain trust account\n", mach_acct));
758 0 : status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
759 0 : goto out;
760 : }
761 0 : break;
762 0 : default:
763 0 : break;
764 : }
765 :
766 113 : become_root();
767 113 : status = dcerpc_samr_QueryUserInfo2(h,
768 : mem_ctx,
769 : &user_handle,
770 : UserInternal1Information,
771 : &info,
772 : &result);
773 113 : unbecome_root();
774 113 : if (any_nt_status_not_ok(status, result, &status)) {
775 0 : goto out;
776 : }
777 :
778 113 : if (info->info18.nt_pwd_active == 0) {
779 0 : DEBUG(0,("get_md4pw: Workstation %s: account does not have a password\n", mach_acct));
780 0 : status = NT_STATUS_LOGON_FAILURE;
781 0 : goto out;
782 : }
783 :
784 : /* samr gives out nthash unencrypted (!) */
785 113 : memcpy(md4pw->hash, info->info18.nt_pwd.hash, 16);
786 :
787 113 : sid_compose(sid, domain_sid, user_rid);
788 :
789 121 : out:
790 121 : if (h && is_valid_policy_hnd(&user_handle)) {
791 113 : dcerpc_samr_Close(h, mem_ctx, &user_handle, &result);
792 : }
793 :
794 121 : talloc_free(mem_ctx);
795 :
796 121 : return status;
797 : }
798 :
799 : /*************************************************************************
800 : _netr_ServerReqChallenge
801 : *************************************************************************/
802 :
803 1551 : NTSTATUS _netr_ServerReqChallenge(struct pipes_struct *p,
804 : struct netr_ServerReqChallenge *r)
805 : {
806 1551 : struct dcesrv_call_state *dce_call = p->dce_call;
807 1551 : struct netlogon_server_pipe_state *pipe_state = NULL;
808 0 : NTSTATUS status;
809 :
810 1551 : pipe_state = dcesrv_iface_state_find_conn(
811 : dce_call,
812 : NETLOGON_SERVER_PIPE_STATE_MAGIC,
813 : struct netlogon_server_pipe_state);
814 :
815 1551 : if (pipe_state) {
816 1468 : DEBUG(10,("_netr_ServerReqChallenge: new challenge requested. Clearing old state.\n"));
817 1468 : talloc_free(pipe_state);
818 : }
819 :
820 1551 : pipe_state = talloc(p->mem_ctx, struct netlogon_server_pipe_state);
821 1551 : NT_STATUS_HAVE_NO_MEMORY(pipe_state);
822 :
823 1551 : pipe_state->client_challenge = *r->in.credentials;
824 :
825 1551 : netlogon_creds_random_challenge(&pipe_state->server_challenge);
826 :
827 1551 : *r->out.return_credentials = pipe_state->server_challenge;
828 :
829 1551 : status = dcesrv_iface_state_store_conn(
830 : dce_call,
831 : NETLOGON_SERVER_PIPE_STATE_MAGIC,
832 : pipe_state);
833 1551 : if (!NT_STATUS_IS_OK(status)) {
834 0 : return status;
835 : }
836 :
837 1551 : return NT_STATUS_OK;
838 : }
839 :
840 : /*************************************************************************
841 : _netr_ServerAuthenticate
842 : Create the initial credentials.
843 : *************************************************************************/
844 :
845 0 : NTSTATUS _netr_ServerAuthenticate(struct pipes_struct *p,
846 : struct netr_ServerAuthenticate *r)
847 : {
848 0 : struct netr_ServerAuthenticate3 a;
849 0 : uint32_t negotiate_flags = 0;
850 0 : uint32_t rid;
851 :
852 0 : a.in.server_name = r->in.server_name;
853 0 : a.in.account_name = r->in.account_name;
854 0 : a.in.secure_channel_type = r->in.secure_channel_type;
855 0 : a.in.computer_name = r->in.computer_name;
856 0 : a.in.credentials = r->in.credentials;
857 0 : a.in.negotiate_flags = &negotiate_flags;
858 :
859 0 : a.out.return_credentials = r->out.return_credentials;
860 0 : a.out.rid = &rid;
861 0 : a.out.negotiate_flags = &negotiate_flags;
862 :
863 0 : return _netr_ServerAuthenticate3(p, &a);
864 :
865 : }
866 :
867 : /*************************************************************************
868 : _netr_ServerAuthenticate3
869 : *************************************************************************/
870 :
871 121 : NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
872 : struct netr_ServerAuthenticate3 *r)
873 : {
874 121 : struct dcesrv_call_state *dce_call = p->dce_call;
875 0 : NTSTATUS status;
876 0 : uint32_t srv_flgs;
877 : /* r->in.negotiate_flags is an aliased pointer to r->out.negotiate_flags,
878 : * so use a copy to avoid destroying the client values. */
879 121 : uint32_t in_neg_flags = *r->in.negotiate_flags;
880 0 : const char *fn;
881 121 : struct loadparm_context *lp_ctx = p->dce_call->conn->dce_ctx->lp_ctx;
882 0 : struct dom_sid sid;
883 0 : struct samr_Password mach_pwd;
884 0 : struct netlogon_creds_CredentialState *creds;
885 121 : struct netlogon_server_pipe_state *pipe_state = NULL;
886 :
887 : /* According to Microsoft (see bugid #6099)
888 : * Windows 7 looks at the negotiate_flags
889 : * returned in this structure *even if the
890 : * call fails with access denied* ! So in order
891 : * to allow Win7 to connect to a Samba NT style
892 : * PDC we set the flags before we know if it's
893 : * an error or not.
894 : */
895 :
896 : /* 0x000001ff */
897 121 : srv_flgs = NETLOGON_NEG_ACCOUNT_LOCKOUT |
898 : NETLOGON_NEG_PERSISTENT_SAMREPL |
899 : NETLOGON_NEG_ARCFOUR |
900 : NETLOGON_NEG_PROMOTION_COUNT |
901 : NETLOGON_NEG_CHANGELOG_BDC |
902 : NETLOGON_NEG_FULL_SYNC_REPL |
903 : NETLOGON_NEG_MULTIPLE_SIDS |
904 : NETLOGON_NEG_REDO |
905 : NETLOGON_NEG_PASSWORD_CHANGE_REFUSAL |
906 : NETLOGON_NEG_PASSWORD_SET2;
907 :
908 : /* Ensure we support strong (128-bit) keys. */
909 121 : if (in_neg_flags & NETLOGON_NEG_STRONG_KEYS) {
910 121 : srv_flgs |= NETLOGON_NEG_STRONG_KEYS;
911 : }
912 :
913 121 : if (in_neg_flags & NETLOGON_NEG_SUPPORTS_AES) {
914 112 : srv_flgs |= NETLOGON_NEG_SUPPORTS_AES;
915 : }
916 :
917 121 : if (in_neg_flags & NETLOGON_NEG_SCHANNEL) {
918 121 : srv_flgs |= NETLOGON_NEG_SCHANNEL;
919 : }
920 :
921 : /*
922 : * Support authentication of trusted domains.
923 : *
924 : * These flags are the minimum required set which works with win2k3
925 : * and win2k8.
926 : */
927 121 : if (pdb_capabilities() & PDB_CAP_TRUSTED_DOMAINS_EX) {
928 0 : srv_flgs |= NETLOGON_NEG_TRANSITIVE_TRUSTS |
929 : NETLOGON_NEG_DNS_DOMAIN_TRUSTS |
930 : NETLOGON_NEG_CROSS_FOREST_TRUSTS |
931 : NETLOGON_NEG_NEUTRALIZE_NT4_EMULATION;
932 : }
933 :
934 : /*
935 : * If weak crypto is disabled, do not announce that we support RC4.
936 : */
937 121 : if (lp_weak_crypto() == SAMBA_WEAK_CRYPTO_DISALLOWED) {
938 0 : srv_flgs &= ~NETLOGON_NEG_ARCFOUR;
939 : }
940 :
941 121 : switch (dce_call->pkt.u.request.opnum) {
942 0 : case NDR_NETR_SERVERAUTHENTICATE:
943 0 : fn = "_netr_ServerAuthenticate";
944 0 : break;
945 55 : case NDR_NETR_SERVERAUTHENTICATE2:
946 55 : fn = "_netr_ServerAuthenticate2";
947 55 : break;
948 66 : case NDR_NETR_SERVERAUTHENTICATE3:
949 66 : fn = "_netr_ServerAuthenticate3";
950 66 : break;
951 0 : default:
952 0 : return NT_STATUS_INTERNAL_ERROR;
953 : }
954 :
955 : /* We use this as the key to store the creds: */
956 : /* r->in.computer_name */
957 :
958 121 : pipe_state = dcesrv_iface_state_find_conn(
959 : dce_call,
960 : NETLOGON_SERVER_PIPE_STATE_MAGIC,
961 : struct netlogon_server_pipe_state);
962 :
963 121 : if (!pipe_state) {
964 0 : DEBUG(0,("%s: no challenge sent to client %s\n", fn,
965 : r->in.computer_name));
966 0 : status = NT_STATUS_ACCESS_DENIED;
967 0 : goto out;
968 : }
969 :
970 121 : status = get_md4pw(&mach_pwd,
971 : r->in.account_name,
972 : r->in.secure_channel_type,
973 : &sid, p->msg_ctx);
974 121 : if (!NT_STATUS_IS_OK(status)) {
975 8 : DEBUG(0,("%s: failed to get machine password for "
976 : "account %s: %s\n",
977 : fn, r->in.account_name, nt_errstr(status) ));
978 : /* always return NT_STATUS_ACCESS_DENIED */
979 8 : status = NT_STATUS_ACCESS_DENIED;
980 8 : goto out;
981 : }
982 :
983 : /* From the client / server challenges and md4 password, generate sess key */
984 : /* Check client credentials are valid. */
985 113 : creds = netlogon_creds_server_init(p->mem_ctx,
986 : r->in.account_name,
987 : r->in.computer_name,
988 113 : r->in.secure_channel_type,
989 113 : &pipe_state->client_challenge,
990 113 : &pipe_state->server_challenge,
991 : &mach_pwd,
992 113 : r->in.credentials,
993 : r->out.return_credentials,
994 : srv_flgs);
995 113 : if (!creds) {
996 8 : DEBUG(0,("%s: netlogon_creds_server_check failed. Rejecting auth "
997 : "request from client %s machine account %s\n",
998 : fn, r->in.computer_name,
999 : r->in.account_name));
1000 8 : status = NT_STATUS_ACCESS_DENIED;
1001 8 : goto out;
1002 : }
1003 :
1004 105 : creds->sid = dom_sid_dup(creds, &sid);
1005 105 : if (!creds->sid) {
1006 0 : status = NT_STATUS_NO_MEMORY;
1007 0 : goto out;
1008 : }
1009 :
1010 : /* Store off the state so we can continue after client disconnect. */
1011 105 : become_root();
1012 105 : status = schannel_save_creds_state(p->mem_ctx, lp_ctx, creds);
1013 105 : unbecome_root();
1014 :
1015 105 : if (!NT_STATUS_IS_OK(status)) {
1016 0 : ZERO_STRUCTP(r->out.return_credentials);
1017 0 : goto out;
1018 : }
1019 :
1020 105 : sid_peek_rid(&sid, r->out.rid);
1021 :
1022 105 : status = NT_STATUS_OK;
1023 :
1024 121 : out:
1025 :
1026 121 : *r->out.negotiate_flags = srv_flgs;
1027 121 : return status;
1028 : }
1029 :
1030 : /*************************************************************************
1031 : _netr_ServerAuthenticate2
1032 : *************************************************************************/
1033 :
1034 55 : NTSTATUS _netr_ServerAuthenticate2(struct pipes_struct *p,
1035 : struct netr_ServerAuthenticate2 *r)
1036 : {
1037 0 : struct netr_ServerAuthenticate3 a;
1038 0 : uint32_t rid;
1039 :
1040 55 : a.in.server_name = r->in.server_name;
1041 55 : a.in.account_name = r->in.account_name;
1042 55 : a.in.secure_channel_type = r->in.secure_channel_type;
1043 55 : a.in.computer_name = r->in.computer_name;
1044 55 : a.in.credentials = r->in.credentials;
1045 55 : a.in.negotiate_flags = r->in.negotiate_flags;
1046 :
1047 55 : a.out.return_credentials = r->out.return_credentials;
1048 55 : a.out.rid = &rid;
1049 55 : a.out.negotiate_flags = r->out.negotiate_flags;
1050 :
1051 55 : return _netr_ServerAuthenticate3(p, &a);
1052 : }
1053 :
1054 : /*************************************************************************
1055 : *************************************************************************/
1056 :
1057 21 : static NTSTATUS samr_open_machine_account(
1058 : struct dcerpc_binding_handle *b,
1059 : const struct dom_sid *machine_sid,
1060 : uint32_t access_mask,
1061 : struct policy_handle *machine_handle)
1062 : {
1063 21 : TALLOC_CTX *frame = talloc_stackframe();
1064 21 : struct policy_handle connect_handle = { .handle_type = 0 };
1065 21 : struct policy_handle domain_handle = { .handle_type = 0 };
1066 21 : struct dom_sid domain_sid = *machine_sid;
1067 0 : uint32_t machine_rid;
1068 21 : NTSTATUS result = NT_STATUS_OK;
1069 21 : NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
1070 0 : bool ok;
1071 :
1072 21 : ok = sid_split_rid(&domain_sid, &machine_rid);
1073 21 : if (!ok) {
1074 0 : goto out;
1075 : }
1076 :
1077 21 : status = dcerpc_samr_Connect2(
1078 : b,
1079 : frame,
1080 : lp_netbios_name(),
1081 : SAMR_ACCESS_CONNECT_TO_SERVER |
1082 : SAMR_ACCESS_ENUM_DOMAINS |
1083 : SAMR_ACCESS_LOOKUP_DOMAIN,
1084 : &connect_handle,
1085 : &result);
1086 21 : if (any_nt_status_not_ok(status, result, &status)) {
1087 0 : goto out;
1088 : }
1089 :
1090 21 : status = dcerpc_samr_OpenDomain(
1091 : b,
1092 : frame,
1093 : &connect_handle,
1094 : SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
1095 : &domain_sid,
1096 : &domain_handle,
1097 : &result);
1098 21 : if (any_nt_status_not_ok(status, result, &status)) {
1099 0 : goto out;
1100 : }
1101 :
1102 21 : status = dcerpc_samr_OpenUser(
1103 : b,
1104 : frame,
1105 : &domain_handle,
1106 : SEC_FLAG_MAXIMUM_ALLOWED,
1107 : machine_rid,
1108 : machine_handle,
1109 : &result);
1110 21 : if (any_nt_status_not_ok(status, result, &status)) {
1111 0 : goto out;
1112 : }
1113 :
1114 21 : out:
1115 21 : if ((b != NULL) && is_valid_policy_hnd(&domain_handle)) {
1116 21 : dcerpc_samr_Close(b, frame, &domain_handle, &result);
1117 : }
1118 21 : if ((b != NULL) && is_valid_policy_hnd(&connect_handle)) {
1119 21 : dcerpc_samr_Close(b, frame, &connect_handle, &result);
1120 : }
1121 21 : TALLOC_FREE(frame);
1122 21 : return status;
1123 : }
1124 :
1125 : struct _samr_Credentials_t {
1126 : enum {
1127 : CRED_TYPE_NT_HASH,
1128 : CRED_TYPE_PLAIN_TEXT,
1129 : } cred_type;
1130 : union {
1131 : struct samr_Password *nt_hash;
1132 : const char *password;
1133 : } creds;
1134 : };
1135 :
1136 :
1137 21 : static NTSTATUS netr_set_machine_account_password(
1138 : TALLOC_CTX *mem_ctx,
1139 : struct auth_session_info *session_info,
1140 : struct messaging_context *msg_ctx,
1141 : const struct dom_sid *machine_sid,
1142 : struct _samr_Credentials_t *cr)
1143 : {
1144 0 : NTSTATUS status;
1145 21 : NTSTATUS result = NT_STATUS_OK;
1146 21 : struct dcerpc_binding_handle *h = NULL;
1147 0 : struct tsocket_address *local;
1148 21 : struct policy_handle user_handle = { .handle_type = 0 };
1149 0 : uint32_t acct_ctrl;
1150 0 : union samr_UserInfo *info;
1151 0 : struct samr_UserInfo18 info18;
1152 0 : struct samr_UserInfo26 info26;
1153 0 : DATA_BLOB in,out;
1154 0 : int rc;
1155 0 : DATA_BLOB session_key;
1156 0 : enum samr_UserInfoLevel infolevel;
1157 21 : TALLOC_CTX *frame = talloc_stackframe();
1158 :
1159 21 : status = session_extract_session_key(session_info,
1160 : &session_key,
1161 : KEY_USE_16BYTES);
1162 21 : if (!NT_STATUS_IS_OK(status)) {
1163 0 : goto out;
1164 : }
1165 :
1166 21 : rc = tsocket_address_inet_from_strings(frame,
1167 : "ip",
1168 : "127.0.0.1",
1169 : 0,
1170 : &local);
1171 21 : if (rc < 0) {
1172 0 : status = NT_STATUS_NO_MEMORY;
1173 0 : goto out;
1174 : }
1175 :
1176 21 : status = rpcint_binding_handle(frame,
1177 : &ndr_table_samr,
1178 : local,
1179 : NULL,
1180 : get_session_info_system(),
1181 : msg_ctx,
1182 : &h);
1183 21 : if (!NT_STATUS_IS_OK(status)) {
1184 0 : goto out;
1185 : }
1186 :
1187 21 : status = samr_open_machine_account(
1188 : h, machine_sid, SEC_FLAG_MAXIMUM_ALLOWED, &user_handle);
1189 21 : if (!NT_STATUS_IS_OK(status)) {
1190 0 : goto out;
1191 : }
1192 :
1193 21 : status = dcerpc_samr_QueryUserInfo2(h,
1194 : frame,
1195 : &user_handle,
1196 : UserControlInformation,
1197 : &info,
1198 : &result);
1199 21 : if (any_nt_status_not_ok(status, result, &status)) {
1200 0 : goto out;
1201 : }
1202 :
1203 21 : acct_ctrl = info->info16.acct_flags;
1204 :
1205 21 : if (!(acct_ctrl & ACB_WSTRUST ||
1206 2 : acct_ctrl & ACB_SVRTRUST ||
1207 0 : acct_ctrl & ACB_DOMTRUST)) {
1208 0 : status = NT_STATUS_NO_SUCH_USER;
1209 0 : goto out;
1210 : }
1211 :
1212 21 : if (acct_ctrl & ACB_DISABLED) {
1213 0 : status = NT_STATUS_ACCOUNT_DISABLED;
1214 0 : goto out;
1215 : }
1216 :
1217 21 : switch(cr->cred_type) {
1218 8 : case CRED_TYPE_NT_HASH:
1219 8 : ZERO_STRUCT(info18);
1220 :
1221 8 : infolevel = UserInternal1Information;
1222 :
1223 8 : in = data_blob_const(cr->creds.nt_hash, 16);
1224 8 : out = data_blob_talloc_zero(frame, 16);
1225 8 : if (out.data == NULL) {
1226 0 : status = NT_STATUS_NO_MEMORY;
1227 0 : goto out;
1228 : }
1229 8 : rc = sess_crypt_blob(&out, &in, &session_key, SAMBA_GNUTLS_ENCRYPT);
1230 8 : if (rc != 0) {
1231 0 : status = gnutls_error_to_ntstatus(rc,
1232 : NT_STATUS_ACCESS_DISABLED_BY_POLICY_OTHER);
1233 0 : goto out;
1234 : }
1235 8 : memcpy(info18.nt_pwd.hash, out.data, out.length);
1236 :
1237 8 : info18.nt_pwd_active = true;
1238 :
1239 8 : info->info18 = info18;
1240 8 : break;
1241 13 : case CRED_TYPE_PLAIN_TEXT:
1242 13 : ZERO_STRUCT(info26);
1243 :
1244 13 : infolevel = UserInternal5InformationNew;
1245 :
1246 13 : status = init_samr_CryptPasswordEx(cr->creds.password,
1247 : &session_key,
1248 : &info26.password);
1249 13 : if (!NT_STATUS_IS_OK(status)) {
1250 0 : goto out;
1251 : }
1252 :
1253 13 : info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1254 13 : info->info26 = info26;
1255 13 : break;
1256 0 : default:
1257 0 : status = NT_STATUS_INTERNAL_ERROR;
1258 0 : goto out;
1259 : break;
1260 : }
1261 :
1262 21 : status = dcerpc_samr_SetUserInfo2(h,
1263 : frame,
1264 : &user_handle,
1265 : infolevel,
1266 : info,
1267 : &result);
1268 21 : if (any_nt_status_not_ok(status, result, &status)) {
1269 0 : goto out;
1270 : }
1271 :
1272 21 : out:
1273 21 : if (h && is_valid_policy_hnd(&user_handle)) {
1274 21 : dcerpc_samr_Close(h, frame, &user_handle, &result);
1275 : }
1276 21 : TALLOC_FREE(frame);
1277 :
1278 21 : return status;
1279 : }
1280 :
1281 : /*************************************************************************
1282 : _netr_ServerPasswordSet
1283 : *************************************************************************/
1284 :
1285 12 : NTSTATUS _netr_ServerPasswordSet(struct pipes_struct *p,
1286 : struct netr_ServerPasswordSet *r)
1287 : {
1288 12 : struct dcesrv_call_state *dce_call = p->dce_call;
1289 0 : struct auth_session_info *session_info =
1290 12 : dcesrv_call_session_info(dce_call);
1291 12 : NTSTATUS status = NT_STATUS_OK;
1292 0 : size_t i;
1293 12 : struct netlogon_creds_CredentialState *creds = NULL;
1294 12 : struct _samr_Credentials_t cr = { CRED_TYPE_NT_HASH, {0}};
1295 :
1296 12 : DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__));
1297 :
1298 12 : become_root();
1299 12 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
1300 : p->mem_ctx,
1301 : r->in.computer_name,
1302 : r->in.credential,
1303 : r->out.return_authenticator,
1304 : &creds);
1305 12 : unbecome_root();
1306 :
1307 12 : if (!NT_STATUS_IS_OK(status)) {
1308 4 : const char *computer_name = "<unknown>";
1309 :
1310 4 : if (creds != NULL && creds->computer_name != NULL) {
1311 0 : computer_name = creds->computer_name;
1312 : }
1313 4 : DEBUG(2,("_netr_ServerPasswordSet: netlogon_creds_server_step failed. Rejecting auth "
1314 : "request from client %s machine account %s\n",
1315 : r->in.computer_name, computer_name));
1316 4 : TALLOC_FREE(creds);
1317 4 : return status;
1318 : }
1319 :
1320 8 : DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n",
1321 : r->in.computer_name, creds->computer_name));
1322 :
1323 8 : status = netlogon_creds_des_decrypt(creds, r->in.new_password);
1324 8 : if (!NT_STATUS_IS_OK(status)) {
1325 0 : return status;
1326 : }
1327 :
1328 8 : DEBUG(100,("_netr_ServerPasswordSet: new given value was :\n"));
1329 136 : for(i = 0; i < sizeof(r->in.new_password->hash); i++)
1330 128 : DEBUG(100,("%02X ", r->in.new_password->hash[i]));
1331 8 : DEBUG(100,("\n"));
1332 :
1333 8 : cr.creds.nt_hash = r->in.new_password;
1334 8 : status = netr_set_machine_account_password(p->mem_ctx,
1335 : session_info,
1336 : p->msg_ctx,
1337 8 : creds->sid,
1338 : &cr);
1339 8 : return status;
1340 : }
1341 :
1342 : /****************************************************************
1343 : _netr_ServerPasswordSet2
1344 : ****************************************************************/
1345 :
1346 28 : NTSTATUS _netr_ServerPasswordSet2(struct pipes_struct *p,
1347 : struct netr_ServerPasswordSet2 *r)
1348 : {
1349 28 : struct dcesrv_call_state *dce_call = p->dce_call;
1350 0 : struct auth_session_info *session_info =
1351 28 : dcesrv_call_session_info(dce_call);
1352 0 : NTSTATUS status;
1353 28 : struct netlogon_creds_CredentialState *creds = NULL;
1354 28 : DATA_BLOB plaintext = data_blob_null;
1355 28 : DATA_BLOB new_password = data_blob_null;
1356 0 : size_t confounder_len;
1357 28 : DATA_BLOB dec_blob = data_blob_null;
1358 28 : DATA_BLOB enc_blob = data_blob_null;
1359 0 : struct samr_CryptPassword password_buf;
1360 28 : struct _samr_Credentials_t cr = { CRED_TYPE_PLAIN_TEXT, {0}};
1361 0 : bool ok;
1362 :
1363 28 : become_root();
1364 28 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
1365 : p->mem_ctx,
1366 : r->in.computer_name,
1367 : r->in.credential,
1368 : r->out.return_authenticator,
1369 : &creds);
1370 28 : unbecome_root();
1371 :
1372 28 : if (!NT_STATUS_IS_OK(status)) {
1373 3 : DBG_NOTICE("netlogon_creds_server_step failed. "
1374 : "Rejecting auth request from client %s\n",
1375 : r->in.computer_name);
1376 3 : TALLOC_FREE(creds);
1377 3 : return status;
1378 : }
1379 :
1380 25 : DBG_NOTICE("Server Password Set2 by remote "
1381 : "machine:[%s] on account [%s]\n",
1382 : r->in.computer_name,
1383 : creds->computer_name != NULL ?
1384 : creds->computer_name : "<unknown>");
1385 :
1386 25 : memcpy(password_buf.data, r->in.new_password->data, 512);
1387 25 : SIVAL(password_buf.data, 512, r->in.new_password->length);
1388 :
1389 25 : if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
1390 21 : status = netlogon_creds_aes_decrypt(creds,
1391 : password_buf.data,
1392 : 516);
1393 : } else {
1394 4 : status = netlogon_creds_arcfour_crypt(creds,
1395 : password_buf.data,
1396 : 516);
1397 : }
1398 25 : if (!NT_STATUS_IS_OK(status)) {
1399 0 : TALLOC_FREE(creds);
1400 0 : return status;
1401 : }
1402 :
1403 25 : if (!extract_pw_from_buffer(p->mem_ctx, password_buf.data, &new_password)) {
1404 0 : DEBUG(2,("_netr_ServerPasswordSet2: unable to extract password "
1405 : "from a buffer. Rejecting auth request as a wrong password\n"));
1406 0 : TALLOC_FREE(creds);
1407 0 : return NT_STATUS_WRONG_PASSWORD;
1408 : }
1409 :
1410 : /*
1411 : * Make sure the length field was encrypted,
1412 : * otherwise we are under attack.
1413 : */
1414 25 : if (new_password.length == r->in.new_password->length) {
1415 2 : DBG_WARNING("Length[%zu] field not encrypted\n",
1416 : new_password.length);
1417 2 : TALLOC_FREE(creds);
1418 2 : return NT_STATUS_WRONG_PASSWORD;
1419 : }
1420 :
1421 : /*
1422 : * We don't allow empty passwords for machine accounts.
1423 : */
1424 23 : if (new_password.length < 2) {
1425 2 : DBG_WARNING("Empty password Length[%zu]\n",
1426 : new_password.length);
1427 2 : TALLOC_FREE(creds);
1428 2 : return NT_STATUS_WRONG_PASSWORD;
1429 : }
1430 :
1431 : /*
1432 : * Make sure the confounder part of CryptPassword
1433 : * buffer was encrypted, otherwise we are under attack.
1434 : */
1435 21 : confounder_len = 512 - new_password.length;
1436 21 : enc_blob = data_blob_const(r->in.new_password->data, confounder_len);
1437 21 : dec_blob = data_blob_const(password_buf.data, confounder_len);
1438 21 : if (confounder_len > 0 && data_blob_equal_const_time(&dec_blob, &enc_blob)) {
1439 2 : DBG_WARNING("Confounder buffer not encrypted Length[%zu]\n",
1440 : confounder_len);
1441 2 : TALLOC_FREE(creds);
1442 2 : return NT_STATUS_WRONG_PASSWORD;
1443 : }
1444 :
1445 : /*
1446 : * Check that the password part was actually encrypted,
1447 : * otherwise we are under attack.
1448 : */
1449 19 : enc_blob = data_blob_const(r->in.new_password->data + confounder_len,
1450 : new_password.length);
1451 19 : dec_blob = data_blob_const(password_buf.data + confounder_len,
1452 : new_password.length);
1453 19 : if (data_blob_equal_const_time(&dec_blob, &enc_blob)) {
1454 2 : DBG_WARNING("Password buffer not encrypted Length[%zu]\n",
1455 : new_password.length);
1456 2 : TALLOC_FREE(creds);
1457 2 : return NT_STATUS_WRONG_PASSWORD;
1458 : }
1459 :
1460 : /*
1461 : * don't allow zero buffers
1462 : */
1463 17 : if (all_zero(new_password.data, new_password.length)) {
1464 2 : DBG_WARNING("Password zero buffer Length[%zu]\n",
1465 : new_password.length);
1466 2 : TALLOC_FREE(creds);
1467 2 : return NT_STATUS_WRONG_PASSWORD;
1468 : }
1469 :
1470 : /* Convert from UTF16 -> plaintext. */
1471 15 : ok = convert_string_talloc(p->mem_ctx,
1472 : CH_UTF16,
1473 : CH_UNIX,
1474 15 : new_password.data,
1475 : new_password.length,
1476 : &plaintext.data,
1477 : &plaintext.length);
1478 15 : if (!ok) {
1479 2 : DBG_WARNING("unable to extract password from a buffer. "
1480 : "Rejecting auth request as a wrong password\n");
1481 2 : TALLOC_FREE(creds);
1482 2 : return NT_STATUS_WRONG_PASSWORD;
1483 : }
1484 :
1485 : /*
1486 : * We don't allow empty passwords for machine accounts.
1487 : */
1488 :
1489 13 : cr.creds.password = (const char*) plaintext.data;
1490 13 : if (strlen(cr.creds.password) == 0) {
1491 0 : DBG_WARNING("Empty plaintext password\n");
1492 0 : TALLOC_FREE(creds);
1493 0 : return NT_STATUS_WRONG_PASSWORD;
1494 : }
1495 :
1496 13 : status = netr_set_machine_account_password(p->mem_ctx,
1497 : session_info,
1498 : p->msg_ctx,
1499 13 : creds->sid,
1500 : &cr);
1501 13 : TALLOC_FREE(creds);
1502 13 : return status;
1503 : }
1504 :
1505 : /*************************************************************************
1506 : _netr_LogonSamLogoff
1507 : *************************************************************************/
1508 :
1509 0 : NTSTATUS _netr_LogonSamLogoff(struct pipes_struct *p,
1510 : struct netr_LogonSamLogoff *r)
1511 : {
1512 0 : NTSTATUS status;
1513 0 : struct netlogon_creds_CredentialState *creds;
1514 :
1515 0 : become_root();
1516 0 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
1517 : p->mem_ctx,
1518 : r->in.computer_name,
1519 : r->in.credential,
1520 : r->out.return_authenticator,
1521 : &creds);
1522 0 : unbecome_root();
1523 :
1524 0 : return status;
1525 : }
1526 :
1527 1404 : static NTSTATUS _netr_LogonSamLogon_check(const struct netr_LogonSamLogonEx *r)
1528 : {
1529 1404 : switch (r->in.logon_level) {
1530 88 : case NetlogonInteractiveInformation:
1531 : case NetlogonServiceInformation:
1532 : case NetlogonInteractiveTransitiveInformation:
1533 : case NetlogonServiceTransitiveInformation:
1534 88 : if (r->in.logon->password == NULL) {
1535 0 : return NT_STATUS_INVALID_PARAMETER;
1536 : }
1537 :
1538 88 : switch (r->in.validation_level) {
1539 61 : case NetlogonValidationSamInfo: /* 2 */
1540 : case NetlogonValidationSamInfo2: /* 3 */
1541 61 : break;
1542 27 : case NetlogonValidationSamInfo4: /* 6 */
1543 27 : if ((pdb_capabilities() & PDB_CAP_ADS) == 0) {
1544 27 : DEBUG(10,("Not adding validation info level 6 "
1545 : "without ADS passdb backend\n"));
1546 27 : return NT_STATUS_INVALID_INFO_CLASS;
1547 : }
1548 0 : break;
1549 0 : default:
1550 0 : return NT_STATUS_INVALID_INFO_CLASS;
1551 : }
1552 :
1553 61 : break;
1554 1076 : case NetlogonNetworkInformation:
1555 : case NetlogonNetworkTransitiveInformation:
1556 1076 : if (r->in.logon->network == NULL) {
1557 0 : return NT_STATUS_INVALID_PARAMETER;
1558 : }
1559 :
1560 1076 : switch (r->in.validation_level) {
1561 868 : case NetlogonValidationSamInfo: /* 2 */
1562 : case NetlogonValidationSamInfo2: /* 3 */
1563 868 : break;
1564 148 : case NetlogonValidationSamInfo4: /* 6 */
1565 148 : if ((pdb_capabilities() & PDB_CAP_ADS) == 0) {
1566 148 : DEBUG(10,("Not adding validation info level 6 "
1567 : "without ADS passdb backend\n"));
1568 148 : return NT_STATUS_INVALID_INFO_CLASS;
1569 : }
1570 0 : break;
1571 60 : default:
1572 60 : return NT_STATUS_INVALID_INFO_CLASS;
1573 : }
1574 :
1575 868 : break;
1576 :
1577 0 : case NetlogonGenericInformation:
1578 0 : if (r->in.logon->generic == NULL) {
1579 0 : return NT_STATUS_INVALID_PARAMETER;
1580 : }
1581 :
1582 : /* we don't support this here */
1583 0 : return NT_STATUS_INVALID_PARAMETER;
1584 : #if 0
1585 : switch (r->in.validation_level) {
1586 : /* TODO: case NetlogonValidationGenericInfo: 4 */
1587 : case NetlogonValidationGenericInfo2: /* 5 */
1588 : break;
1589 : default:
1590 : return NT_STATUS_INVALID_INFO_CLASS;
1591 : }
1592 :
1593 : break;
1594 : #endif
1595 240 : default:
1596 240 : return NT_STATUS_INVALID_PARAMETER;
1597 : }
1598 :
1599 929 : return NT_STATUS_OK;
1600 : }
1601 :
1602 : /*************************************************************************
1603 : _netr_LogonSamLogon_base
1604 : *************************************************************************/
1605 :
1606 929 : static NTSTATUS _netr_LogonSamLogon_base(struct pipes_struct *p,
1607 : struct netr_LogonSamLogonEx *r,
1608 : struct netlogon_creds_CredentialState *creds)
1609 : {
1610 929 : struct dcesrv_call_state *dce_call = p->dce_call;
1611 929 : struct dcesrv_connection *dcesrv_conn = dce_call->conn;
1612 0 : const struct tsocket_address *local_address =
1613 929 : dcesrv_connection_get_local_address(dcesrv_conn);
1614 0 : const struct tsocket_address *remote_address =
1615 929 : dcesrv_connection_get_remote_address(dcesrv_conn);
1616 929 : NTSTATUS status = NT_STATUS_OK;
1617 929 : union netr_LogonLevel *logon = r->in.logon;
1618 0 : const char *nt_username, *nt_domain, *nt_workstation;
1619 929 : char *sanitized_username = NULL;
1620 929 : struct auth_usersupplied_info *user_info = NULL;
1621 929 : struct auth_serversupplied_info *server_info = NULL;
1622 929 : struct auth_context *auth_context = NULL;
1623 0 : const char *fn;
1624 929 : enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
1625 929 : enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
1626 929 : uint16_t opnum = dce_call->pkt.u.request.opnum;
1627 :
1628 929 : dcesrv_call_auth_info(dce_call, &auth_type, &auth_level);
1629 :
1630 : #ifdef DEBUG_PASSWORD
1631 929 : logon = netlogon_creds_shallow_copy_logon(p->mem_ctx,
1632 : r->in.logon_level,
1633 929 : r->in.logon);
1634 929 : if (logon == NULL) {
1635 0 : logon = r->in.logon;
1636 : }
1637 : #endif
1638 :
1639 929 : switch (opnum) {
1640 392 : case NDR_NETR_LOGONSAMLOGON:
1641 392 : fn = "_netr_LogonSamLogon";
1642 : /*
1643 : * Already called netr_check_schannel() via
1644 : * netr_creds_server_step_check()
1645 : */
1646 392 : break;
1647 0 : case NDR_NETR_LOGONSAMLOGONWITHFLAGS:
1648 0 : fn = "_netr_LogonSamLogonWithFlags";
1649 : /*
1650 : * Already called netr_check_schannel() via
1651 : * netr_creds_server_step_check()
1652 : */
1653 0 : break;
1654 537 : case NDR_NETR_LOGONSAMLOGONEX:
1655 537 : fn = "_netr_LogonSamLogonEx";
1656 :
1657 537 : if (auth_type != DCERPC_AUTH_TYPE_SCHANNEL) {
1658 20 : return NT_STATUS_ACCESS_DENIED;
1659 : }
1660 :
1661 517 : status = dcesrv_netr_check_schannel(p->dce_call,
1662 : creds,
1663 : auth_type,
1664 : auth_level,
1665 : opnum);
1666 517 : if (NT_STATUS_IS_ERR(status)) {
1667 0 : return status;
1668 : }
1669 :
1670 517 : break;
1671 0 : default:
1672 0 : return NT_STATUS_INTERNAL_ERROR;
1673 : }
1674 :
1675 909 : *r->out.authoritative = 1; /* authoritative response */
1676 :
1677 909 : switch (r->in.validation_level) {
1678 262 : case 2:
1679 262 : r->out.validation->sam2 = talloc_zero(p->mem_ctx, struct netr_SamInfo2);
1680 262 : if (!r->out.validation->sam2) {
1681 0 : return NT_STATUS_NO_MEMORY;
1682 : }
1683 262 : break;
1684 647 : case 3:
1685 647 : r->out.validation->sam3 = talloc_zero(p->mem_ctx, struct netr_SamInfo3);
1686 647 : if (!r->out.validation->sam3) {
1687 0 : return NT_STATUS_NO_MEMORY;
1688 : }
1689 647 : break;
1690 0 : case 6:
1691 0 : r->out.validation->sam6 = talloc_zero(p->mem_ctx, struct netr_SamInfo6);
1692 0 : if (!r->out.validation->sam6) {
1693 0 : return NT_STATUS_NO_MEMORY;
1694 : }
1695 0 : break;
1696 0 : default:
1697 0 : DEBUG(0,("%s: bad validation_level value %d.\n",
1698 : fn, (int)r->in.validation_level));
1699 0 : return NT_STATUS_INVALID_INFO_CLASS;
1700 : }
1701 :
1702 909 : switch (r->in.logon_level) {
1703 61 : case NetlogonInteractiveInformation:
1704 : case NetlogonServiceInformation:
1705 : case NetlogonInteractiveTransitiveInformation:
1706 : case NetlogonServiceTransitiveInformation:
1707 122 : nt_username = logon->password->identity_info.account_name.string ?
1708 61 : logon->password->identity_info.account_name.string : "";
1709 122 : nt_domain = logon->password->identity_info.domain_name.string ?
1710 61 : logon->password->identity_info.domain_name.string : "";
1711 122 : nt_workstation = logon->password->identity_info.workstation.string ?
1712 61 : logon->password->identity_info.workstation.string : "";
1713 :
1714 61 : DEBUG(3,("SAM Logon (Interactive). Domain:[%s]. ", lp_workgroup()));
1715 61 : break;
1716 848 : case NetlogonNetworkInformation:
1717 : case NetlogonNetworkTransitiveInformation:
1718 1696 : nt_username = logon->network->identity_info.account_name.string ?
1719 848 : logon->network->identity_info.account_name.string : "";
1720 1696 : nt_domain = logon->network->identity_info.domain_name.string ?
1721 848 : logon->network->identity_info.domain_name.string : "";
1722 1696 : nt_workstation = logon->network->identity_info.workstation.string ?
1723 848 : logon->network->identity_info.workstation.string : "";
1724 :
1725 848 : DEBUG(3,("SAM Logon (Network). Domain:[%s]. ", lp_workgroup()));
1726 848 : break;
1727 0 : default:
1728 0 : DEBUG(2,("SAM Logon: unsupported switch value\n"));
1729 0 : return NT_STATUS_INVALID_INFO_CLASS;
1730 : } /* end switch */
1731 :
1732 909 : DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username, nt_workstation, nt_domain));
1733 :
1734 909 : DEBUG(5,("Attempting validation level %d for unmapped username %s.\n",
1735 : r->in.validation_level, nt_username));
1736 :
1737 909 : status = netlogon_creds_decrypt_samlogon_logon(creds,
1738 : r->in.logon_level,
1739 : logon);
1740 909 : if (!NT_STATUS_IS_OK(status)) {
1741 0 : return status;
1742 : }
1743 :
1744 909 : status = make_auth3_context_for_netlogon(talloc_tos(), &auth_context);
1745 909 : if (!NT_STATUS_IS_OK(status)) {
1746 0 : return status;
1747 : }
1748 :
1749 909 : switch (r->in.logon_level) {
1750 848 : case NetlogonNetworkInformation:
1751 : case NetlogonNetworkTransitiveInformation:
1752 : {
1753 848 : const char *wksname = nt_workstation;
1754 848 : const char *workgroup = lp_workgroup();
1755 0 : bool ok;
1756 :
1757 848 : ok = auth3_context_set_challenge(
1758 848 : auth_context, logon->network->challenge, "fixed");
1759 848 : if (!ok) {
1760 0 : return NT_STATUS_NO_MEMORY;
1761 : }
1762 :
1763 : /* For a network logon, the workstation name comes in with two
1764 : * backslashes in the front. Strip them if they are there. */
1765 :
1766 848 : if (*wksname == '\\') wksname++;
1767 848 : if (*wksname == '\\') wksname++;
1768 :
1769 : /* Standard challenge/response authentication */
1770 848 : if (!make_user_info_netlogon_network(talloc_tos(),
1771 : &user_info,
1772 : nt_username, nt_domain,
1773 : wksname,
1774 : remote_address,
1775 : local_address,
1776 848 : logon->network->identity_info.parameter_control,
1777 848 : logon->network->lm.data,
1778 848 : logon->network->lm.length,
1779 848 : logon->network->nt.data,
1780 848 : logon->network->nt.length)) {
1781 0 : status = NT_STATUS_NO_MEMORY;
1782 : }
1783 :
1784 848 : if (NT_STATUS_IS_OK(status)) {
1785 848 : status = NTLMv2_RESPONSE_verify_netlogon_creds(
1786 848 : user_info->client.account_name,
1787 848 : user_info->client.domain_name,
1788 848 : user_info->password.response.nt,
1789 : creds, workgroup);
1790 : }
1791 848 : break;
1792 : }
1793 61 : case NetlogonInteractiveInformation:
1794 : case NetlogonServiceInformation:
1795 : case NetlogonInteractiveTransitiveInformation:
1796 : case NetlogonServiceTransitiveInformation:
1797 :
1798 : /* 'Interactive' authentication, supplies the password in its
1799 : MD4 form, encrypted with the session key. We will convert
1800 : this to challenge/response for the auth subsystem to chew
1801 : on */
1802 : {
1803 0 : uint8_t chal[8];
1804 :
1805 : #ifdef DEBUG_PASSWORD
1806 61 : if (logon != r->in.logon) {
1807 61 : DEBUG(100,("lm owf password:"));
1808 61 : dump_data(100,
1809 61 : r->in.logon->password->lmpassword.hash, 16);
1810 :
1811 61 : DEBUG(100,("nt owf password:"));
1812 61 : dump_data(100,
1813 61 : r->in.logon->password->ntpassword.hash, 16);
1814 : }
1815 :
1816 61 : DEBUG(100,("decrypt of lm owf password:"));
1817 61 : dump_data(100, logon->password->lmpassword.hash, 16);
1818 :
1819 61 : DEBUG(100,("decrypt of nt owf password:"));
1820 61 : dump_data(100, logon->password->ntpassword.hash, 16);
1821 : #endif
1822 :
1823 61 : auth_get_ntlm_challenge(auth_context, chal);
1824 :
1825 61 : if (!make_user_info_netlogon_interactive(talloc_tos(),
1826 : &user_info,
1827 : nt_username, nt_domain,
1828 : nt_workstation,
1829 : remote_address,
1830 : local_address,
1831 61 : logon->password->identity_info.parameter_control,
1832 : chal,
1833 61 : logon->password->lmpassword.hash,
1834 61 : logon->password->ntpassword.hash)) {
1835 0 : status = NT_STATUS_NO_MEMORY;
1836 : }
1837 61 : break;
1838 : }
1839 0 : default:
1840 0 : DEBUG(2,("SAM Logon: unsupported switch value\n"));
1841 0 : return NT_STATUS_INVALID_INFO_CLASS;
1842 : } /* end switch */
1843 :
1844 909 : if ( NT_STATUS_IS_OK(status) ) {
1845 909 : status = auth_check_ntlm_password(p->mem_ctx,
1846 : auth_context,
1847 : user_info,
1848 : &server_info,
1849 : r->out.authoritative);
1850 : }
1851 :
1852 909 : TALLOC_FREE(auth_context);
1853 909 : TALLOC_FREE(user_info);
1854 :
1855 909 : DEBUG(5,("%s: check_password returned status %s\n",
1856 : fn, nt_errstr(status)));
1857 :
1858 : /* Check account and password */
1859 :
1860 909 : if (!NT_STATUS_IS_OK(status)) {
1861 194 : TALLOC_FREE(server_info);
1862 194 : return status;
1863 : }
1864 :
1865 715 : if (server_info->guest) {
1866 : /* We don't like guest domain logons... */
1867 0 : DEBUG(5,("%s: Attempted domain logon as GUEST "
1868 : "denied.\n", fn));
1869 0 : TALLOC_FREE(server_info);
1870 0 : return NT_STATUS_LOGON_FAILURE;
1871 : }
1872 :
1873 715 : sanitized_username = talloc_alpha_strcpy(talloc_tos(),
1874 : nt_username,
1875 : SAFE_NETBIOS_CHARS "$");
1876 715 : if (sanitized_username == NULL) {
1877 0 : TALLOC_FREE(server_info);
1878 0 : return NT_STATUS_NO_MEMORY;
1879 : }
1880 :
1881 715 : set_current_user_info(sanitized_username,
1882 715 : server_info->unix_name,
1883 715 : server_info->info3->base.logon_domain.string);
1884 715 : TALLOC_FREE(sanitized_username);
1885 :
1886 : /* This is the point at which, if the login was successful, that
1887 : the SAM Local Security Authority should record that the user is
1888 : logged in to the domain. */
1889 :
1890 715 : switch (r->in.validation_level) {
1891 262 : case 2:
1892 262 : status = serverinfo_to_SamInfo2(server_info,
1893 262 : r->out.validation->sam2);
1894 262 : break;
1895 453 : case 3:
1896 453 : status = serverinfo_to_SamInfo3(server_info,
1897 453 : r->out.validation->sam3);
1898 453 : break;
1899 0 : case 6: {
1900 : /* Only allow this if the pipe is protected. */
1901 0 : if (auth_level < DCERPC_AUTH_LEVEL_PRIVACY) {
1902 0 : DEBUG(0,("netr_Validation6: client %s not using privacy for netlogon\n",
1903 : get_remote_machine_name()));
1904 0 : status = NT_STATUS_INVALID_PARAMETER;
1905 0 : break;
1906 : }
1907 :
1908 0 : status = serverinfo_to_SamInfo6(server_info,
1909 0 : r->out.validation->sam6);
1910 0 : break;
1911 : }
1912 : }
1913 :
1914 715 : TALLOC_FREE(server_info);
1915 :
1916 715 : if (!NT_STATUS_IS_OK(status)) {
1917 0 : return status;
1918 : }
1919 :
1920 715 : status = netlogon_creds_encrypt_samlogon_validation(creds,
1921 715 : r->in.validation_level,
1922 : r->out.validation);
1923 :
1924 715 : return status;
1925 : }
1926 :
1927 : /****************************************************************
1928 : _netr_LogonSamLogonWithFlags
1929 : ****************************************************************/
1930 :
1931 692 : NTSTATUS _netr_LogonSamLogonWithFlags(struct pipes_struct *p,
1932 : struct netr_LogonSamLogonWithFlags *r)
1933 : {
1934 0 : NTSTATUS status;
1935 0 : struct netlogon_creds_CredentialState *creds;
1936 0 : struct netr_LogonSamLogonEx r2;
1937 0 : struct netr_Authenticator return_authenticator;
1938 :
1939 692 : *r->out.authoritative = true;
1940 :
1941 692 : r2.in.server_name = r->in.server_name;
1942 692 : r2.in.computer_name = r->in.computer_name;
1943 692 : r2.in.logon_level = r->in.logon_level;
1944 692 : r2.in.logon = r->in.logon;
1945 692 : r2.in.validation_level = r->in.validation_level;
1946 692 : r2.in.flags = r->in.flags;
1947 692 : r2.out.validation = r->out.validation;
1948 692 : r2.out.authoritative = r->out.authoritative;
1949 692 : r2.out.flags = r->out.flags;
1950 :
1951 692 : status = _netr_LogonSamLogon_check(&r2);
1952 692 : if (!NT_STATUS_IS_OK(status)) {
1953 300 : return status;
1954 : }
1955 :
1956 392 : become_root();
1957 392 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
1958 : p->mem_ctx,
1959 : r->in.computer_name,
1960 : r->in.credential,
1961 : &return_authenticator,
1962 : &creds);
1963 392 : unbecome_root();
1964 392 : if (!NT_STATUS_IS_OK(status)) {
1965 0 : return status;
1966 : }
1967 :
1968 392 : status = _netr_LogonSamLogon_base(p, &r2, creds);
1969 :
1970 392 : *r->out.return_authenticator = return_authenticator;
1971 :
1972 392 : return status;
1973 : }
1974 :
1975 : /*************************************************************************
1976 : _netr_LogonSamLogon
1977 : *************************************************************************/
1978 :
1979 692 : NTSTATUS _netr_LogonSamLogon(struct pipes_struct *p,
1980 : struct netr_LogonSamLogon *r)
1981 : {
1982 0 : NTSTATUS status;
1983 0 : struct netr_LogonSamLogonWithFlags r2;
1984 692 : uint32_t flags = 0;
1985 :
1986 692 : r2.in.server_name = r->in.server_name;
1987 692 : r2.in.computer_name = r->in.computer_name;
1988 692 : r2.in.credential = r->in.credential;
1989 692 : r2.in.logon_level = r->in.logon_level;
1990 692 : r2.in.logon = r->in.logon;
1991 692 : r2.in.validation_level = r->in.validation_level;
1992 692 : r2.in.return_authenticator = r->in.return_authenticator;
1993 692 : r2.in.flags = &flags;
1994 692 : r2.out.validation = r->out.validation;
1995 692 : r2.out.authoritative = r->out.authoritative;
1996 692 : r2.out.flags = &flags;
1997 692 : r2.out.return_authenticator = r->out.return_authenticator;
1998 :
1999 692 : status = _netr_LogonSamLogonWithFlags(p, &r2);
2000 :
2001 692 : return status;
2002 : }
2003 :
2004 : /*************************************************************************
2005 : _netr_LogonSamLogonEx
2006 : - no credential chaining. Map into net sam logon.
2007 : *************************************************************************/
2008 :
2009 712 : NTSTATUS _netr_LogonSamLogonEx(struct pipes_struct *p,
2010 : struct netr_LogonSamLogonEx *r)
2011 : {
2012 0 : NTSTATUS status;
2013 712 : struct netlogon_creds_CredentialState *creds = NULL;
2014 712 : struct loadparm_context *lp_ctx = p->dce_call->conn->dce_ctx->lp_ctx;
2015 :
2016 712 : *r->out.authoritative = true;
2017 :
2018 712 : status = _netr_LogonSamLogon_check(r);
2019 712 : if (!NT_STATUS_IS_OK(status)) {
2020 175 : return status;
2021 : }
2022 :
2023 537 : become_root();
2024 537 : status = schannel_get_creds_state(p->mem_ctx, lp_ctx,
2025 : r->in.computer_name, &creds);
2026 537 : unbecome_root();
2027 537 : if (!NT_STATUS_IS_OK(status)) {
2028 0 : return status;
2029 : }
2030 :
2031 537 : status = _netr_LogonSamLogon_base(p, r, creds);
2032 537 : TALLOC_FREE(creds);
2033 :
2034 537 : return status;
2035 : }
2036 :
2037 : /*************************************************************************
2038 : _ds_enum_dom_trusts
2039 : *************************************************************************/
2040 : #if 0 /* JERRY -- not correct */
2041 : NTSTATUS _ds_enum_dom_trusts(struct pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u,
2042 : DS_R_ENUM_DOM_TRUSTS *r_u)
2043 : {
2044 : NTSTATUS status = NT_STATUS_OK;
2045 :
2046 : /* TODO: According to MSDN, the can only be executed against a
2047 : DC or domain member running Windows 2000 or later. Need
2048 : to test against a standalone 2k server and see what it
2049 : does. A windows 2000 DC includes its own domain in the
2050 : list. --jerry */
2051 :
2052 : return status;
2053 : }
2054 : #endif /* JERRY */
2055 :
2056 :
2057 : /****************************************************************
2058 : ****************************************************************/
2059 :
2060 0 : WERROR _netr_LogonUasLogon(struct pipes_struct *p,
2061 : struct netr_LogonUasLogon *r)
2062 : {
2063 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2064 0 : return WERR_NOT_SUPPORTED;
2065 : }
2066 :
2067 : /****************************************************************
2068 : ****************************************************************/
2069 :
2070 0 : WERROR _netr_LogonUasLogoff(struct pipes_struct *p,
2071 : struct netr_LogonUasLogoff *r)
2072 : {
2073 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2074 0 : return WERR_NOT_SUPPORTED;
2075 : }
2076 :
2077 : /****************************************************************
2078 : ****************************************************************/
2079 :
2080 0 : NTSTATUS _netr_DatabaseDeltas(struct pipes_struct *p,
2081 : struct netr_DatabaseDeltas *r)
2082 : {
2083 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2084 0 : return NT_STATUS_NOT_IMPLEMENTED;
2085 : }
2086 :
2087 : /****************************************************************
2088 : ****************************************************************/
2089 :
2090 0 : NTSTATUS _netr_DatabaseSync(struct pipes_struct *p,
2091 : struct netr_DatabaseSync *r)
2092 : {
2093 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2094 0 : return NT_STATUS_NOT_IMPLEMENTED;
2095 : }
2096 :
2097 : /****************************************************************
2098 : ****************************************************************/
2099 :
2100 0 : NTSTATUS _netr_AccountDeltas(struct pipes_struct *p,
2101 : struct netr_AccountDeltas *r)
2102 : {
2103 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2104 0 : return NT_STATUS_NOT_IMPLEMENTED;
2105 : }
2106 :
2107 : /****************************************************************
2108 : ****************************************************************/
2109 :
2110 0 : NTSTATUS _netr_AccountSync(struct pipes_struct *p,
2111 : struct netr_AccountSync *r)
2112 : {
2113 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2114 0 : return NT_STATUS_NOT_IMPLEMENTED;
2115 : }
2116 :
2117 : /****************************************************************
2118 : ****************************************************************/
2119 :
2120 0 : static bool wb_getdcname(TALLOC_CTX *mem_ctx,
2121 : const char *domain,
2122 : const char **dcname,
2123 : uint32_t flags,
2124 : WERROR *werr)
2125 : {
2126 0 : wbcErr result;
2127 0 : struct wbcDomainControllerInfo *dc_info = NULL;
2128 :
2129 0 : result = wbcLookupDomainController(domain,
2130 : flags,
2131 : &dc_info);
2132 0 : switch (result) {
2133 0 : case WBC_ERR_SUCCESS:
2134 0 : break;
2135 0 : case WBC_ERR_WINBIND_NOT_AVAILABLE:
2136 0 : return false;
2137 0 : case WBC_ERR_DOMAIN_NOT_FOUND:
2138 0 : *werr = WERR_NO_SUCH_DOMAIN;
2139 0 : return true;
2140 0 : default:
2141 0 : *werr = WERR_DOMAIN_CONTROLLER_NOT_FOUND;
2142 0 : return true;
2143 : }
2144 :
2145 0 : *dcname = talloc_strdup(mem_ctx, dc_info->dc_name);
2146 0 : wbcFreeMemory(dc_info);
2147 0 : if (!*dcname) {
2148 0 : *werr = WERR_NOT_ENOUGH_MEMORY;
2149 0 : return false;
2150 : }
2151 :
2152 0 : *werr = WERR_OK;
2153 :
2154 0 : return true;
2155 : }
2156 :
2157 : /****************************************************************
2158 : _netr_GetDcName
2159 : ****************************************************************/
2160 :
2161 0 : WERROR _netr_GetDcName(struct pipes_struct *p,
2162 : struct netr_GetDcName *r)
2163 : {
2164 0 : NTSTATUS status;
2165 0 : WERROR werr;
2166 0 : uint32_t flags;
2167 0 : struct netr_DsRGetDCNameInfo *info;
2168 0 : bool ret;
2169 :
2170 0 : ret = wb_getdcname(p->mem_ctx,
2171 : r->in.domainname,
2172 : r->out.dcname,
2173 : WBC_LOOKUP_DC_IS_FLAT_NAME |
2174 : WBC_LOOKUP_DC_RETURN_FLAT_NAME |
2175 : WBC_LOOKUP_DC_PDC_REQUIRED,
2176 : &werr);
2177 0 : if (ret == true) {
2178 0 : return werr;
2179 : }
2180 :
2181 0 : flags = DS_PDC_REQUIRED | DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
2182 :
2183 0 : status = dsgetdcname(p->mem_ctx,
2184 : p->msg_ctx,
2185 : r->in.domainname,
2186 : NULL,
2187 : NULL,
2188 : flags,
2189 : &info);
2190 0 : if (!NT_STATUS_IS_OK(status)) {
2191 0 : return ntstatus_to_werror(status);
2192 : }
2193 :
2194 0 : *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
2195 0 : talloc_free(info);
2196 0 : if (!*r->out.dcname) {
2197 0 : return WERR_NOT_ENOUGH_MEMORY;
2198 : }
2199 :
2200 0 : return WERR_OK;
2201 : }
2202 :
2203 : /****************************************************************
2204 : _netr_GetAnyDCName
2205 : ****************************************************************/
2206 :
2207 0 : WERROR _netr_GetAnyDCName(struct pipes_struct *p,
2208 : struct netr_GetAnyDCName *r)
2209 : {
2210 0 : NTSTATUS status;
2211 0 : WERROR werr;
2212 0 : uint32_t flags;
2213 0 : struct netr_DsRGetDCNameInfo *info;
2214 0 : bool ret;
2215 :
2216 0 : ret = wb_getdcname(p->mem_ctx,
2217 : r->in.domainname,
2218 : r->out.dcname,
2219 : WBC_LOOKUP_DC_IS_FLAT_NAME |
2220 : WBC_LOOKUP_DC_RETURN_FLAT_NAME,
2221 : &werr);
2222 0 : if (ret == true) {
2223 0 : return werr;
2224 : }
2225 :
2226 0 : flags = DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
2227 :
2228 0 : status = dsgetdcname(p->mem_ctx,
2229 : p->msg_ctx,
2230 : r->in.domainname,
2231 : NULL,
2232 : NULL,
2233 : flags,
2234 : &info);
2235 0 : if (!NT_STATUS_IS_OK(status)) {
2236 0 : return ntstatus_to_werror(status);
2237 : }
2238 :
2239 0 : *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
2240 0 : talloc_free(info);
2241 0 : if (!*r->out.dcname) {
2242 0 : return WERR_NOT_ENOUGH_MEMORY;
2243 : }
2244 :
2245 0 : return WERR_OK;
2246 : }
2247 :
2248 : /****************************************************************
2249 : ****************************************************************/
2250 :
2251 0 : NTSTATUS _netr_DatabaseSync2(struct pipes_struct *p,
2252 : struct netr_DatabaseSync2 *r)
2253 : {
2254 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2255 0 : return NT_STATUS_NOT_IMPLEMENTED;
2256 : }
2257 :
2258 : /****************************************************************
2259 : ****************************************************************/
2260 :
2261 0 : NTSTATUS _netr_DatabaseRedo(struct pipes_struct *p,
2262 : struct netr_DatabaseRedo *r)
2263 : {
2264 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2265 0 : return NT_STATUS_NOT_IMPLEMENTED;
2266 : }
2267 :
2268 : /****************************************************************
2269 : ****************************************************************/
2270 :
2271 0 : WERROR _netr_DsRGetDCName(struct pipes_struct *p,
2272 : struct netr_DsRGetDCName *r)
2273 : {
2274 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2275 0 : return WERR_NOT_SUPPORTED;
2276 : }
2277 :
2278 : /****************************************************************
2279 : ****************************************************************/
2280 :
2281 198 : NTSTATUS _netr_LogonGetCapabilities(struct pipes_struct *p,
2282 : struct netr_LogonGetCapabilities *r)
2283 : {
2284 0 : struct netlogon_creds_CredentialState *creds;
2285 0 : NTSTATUS status;
2286 :
2287 198 : switch (r->in.query_level) {
2288 78 : case 1:
2289 78 : break;
2290 120 : case 2:
2291 : /*
2292 : * Until we know the details behind KB5028166
2293 : * just return DCERPC_NCA_S_FAULT_INVALID_TAG
2294 : * like an unpatched Windows Server.
2295 : */
2296 0 : FALL_THROUGH;
2297 : default:
2298 : /*
2299 : * There would not be a way to marshall the
2300 : * the response. Which would mean our final
2301 : * ndr_push would fail an we would return
2302 : * an RPC-level fault with DCERPC_FAULT_BAD_STUB_DATA.
2303 : *
2304 : * But it's important to match a Windows server
2305 : * especially before KB5028166, see also our bug #15418
2306 : * Otherwise Windows client would stop talking to us.
2307 : */
2308 120 : p->fault_state = DCERPC_NCA_S_FAULT_INVALID_TAG;
2309 120 : return NT_STATUS_NOT_SUPPORTED;
2310 : }
2311 :
2312 78 : become_root();
2313 78 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
2314 : p->mem_ctx,
2315 : r->in.computer_name,
2316 : r->in.credential,
2317 : r->out.return_authenticator,
2318 : &creds);
2319 78 : unbecome_root();
2320 78 : if (!NT_STATUS_IS_OK(status)) {
2321 0 : return status;
2322 : }
2323 :
2324 78 : r->out.capabilities->server_capabilities = creds->negotiate_flags;
2325 :
2326 78 : return NT_STATUS_OK;
2327 : }
2328 :
2329 : /****************************************************************
2330 : ****************************************************************/
2331 :
2332 0 : WERROR _netr_NETRLOGONSETSERVICEBITS(struct pipes_struct *p,
2333 : struct netr_NETRLOGONSETSERVICEBITS *r)
2334 : {
2335 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2336 0 : return WERR_NOT_SUPPORTED;
2337 : }
2338 :
2339 : /****************************************************************
2340 : ****************************************************************/
2341 :
2342 0 : WERROR _netr_LogonGetTrustRid(struct pipes_struct *p,
2343 : struct netr_LogonGetTrustRid *r)
2344 : {
2345 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2346 0 : return WERR_NOT_SUPPORTED;
2347 : }
2348 :
2349 : /****************************************************************
2350 : ****************************************************************/
2351 :
2352 0 : WERROR _netr_NETRLOGONCOMPUTESERVERDIGEST(struct pipes_struct *p,
2353 : struct netr_NETRLOGONCOMPUTESERVERDIGEST *r)
2354 : {
2355 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2356 0 : return WERR_NOT_SUPPORTED;
2357 : }
2358 :
2359 : /****************************************************************
2360 : ****************************************************************/
2361 :
2362 0 : WERROR _netr_NETRLOGONCOMPUTECLIENTDIGEST(struct pipes_struct *p,
2363 : struct netr_NETRLOGONCOMPUTECLIENTDIGEST *r)
2364 : {
2365 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2366 0 : return WERR_NOT_SUPPORTED;
2367 : }
2368 :
2369 : /****************************************************************
2370 : ****************************************************************/
2371 :
2372 0 : WERROR _netr_DsRGetDCNameEx(struct pipes_struct *p,
2373 : struct netr_DsRGetDCNameEx *r)
2374 : {
2375 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2376 0 : return WERR_NOT_SUPPORTED;
2377 : }
2378 :
2379 : /****************************************************************
2380 : ****************************************************************/
2381 :
2382 0 : WERROR _netr_DsRGetSiteName(struct pipes_struct *p,
2383 : struct netr_DsRGetSiteName *r)
2384 : {
2385 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2386 0 : return WERR_NOT_SUPPORTED;
2387 : }
2388 :
2389 : /****************************************************************
2390 : ****************************************************************/
2391 :
2392 0 : NTSTATUS _netr_LogonGetDomainInfo(struct pipes_struct *p,
2393 : struct netr_LogonGetDomainInfo *r)
2394 : {
2395 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2396 0 : return NT_STATUS_NOT_IMPLEMENTED;
2397 : }
2398 :
2399 : /****************************************************************
2400 : ****************************************************************/
2401 :
2402 0 : NTSTATUS _netr_ServerPasswordGet(struct pipes_struct *p,
2403 : struct netr_ServerPasswordGet *r)
2404 : {
2405 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2406 0 : return NT_STATUS_NOT_SUPPORTED;
2407 : }
2408 :
2409 : /****************************************************************
2410 : ****************************************************************/
2411 :
2412 0 : NTSTATUS _netr_NetrLogonSendToSam(struct pipes_struct *p,
2413 : struct netr_NetrLogonSendToSam *r)
2414 : {
2415 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2416 0 : return NT_STATUS_NOT_IMPLEMENTED;
2417 : }
2418 :
2419 : /****************************************************************
2420 : ****************************************************************/
2421 :
2422 0 : WERROR _netr_DsRAddressToSitenamesW(struct pipes_struct *p,
2423 : struct netr_DsRAddressToSitenamesW *r)
2424 : {
2425 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2426 0 : return WERR_NOT_SUPPORTED;
2427 : }
2428 :
2429 : /****************************************************************
2430 : ****************************************************************/
2431 :
2432 0 : WERROR _netr_DsRGetDCNameEx2(struct pipes_struct *p,
2433 : struct netr_DsRGetDCNameEx2 *r)
2434 : {
2435 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2436 0 : return WERR_NOT_SUPPORTED;
2437 : }
2438 :
2439 : /****************************************************************
2440 : ****************************************************************/
2441 :
2442 0 : WERROR _netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN(struct pipes_struct *p,
2443 : struct netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN *r)
2444 : {
2445 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2446 0 : return WERR_NOT_SUPPORTED;
2447 : }
2448 :
2449 : /****************************************************************
2450 : ****************************************************************/
2451 :
2452 0 : WERROR _netr_NetrEnumerateTrustedDomainsEx(struct pipes_struct *p,
2453 : struct netr_NetrEnumerateTrustedDomainsEx *r)
2454 : {
2455 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2456 0 : return WERR_NOT_SUPPORTED;
2457 : }
2458 :
2459 : /****************************************************************
2460 : ****************************************************************/
2461 :
2462 0 : WERROR _netr_DsRAddressToSitenamesExW(struct pipes_struct *p,
2463 : struct netr_DsRAddressToSitenamesExW *r)
2464 : {
2465 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2466 0 : return WERR_NOT_SUPPORTED;
2467 : }
2468 :
2469 : /****************************************************************
2470 : ****************************************************************/
2471 :
2472 0 : WERROR _netr_DsrGetDcSiteCoverageW(struct pipes_struct *p,
2473 : struct netr_DsrGetDcSiteCoverageW *r)
2474 : {
2475 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2476 0 : return WERR_NOT_SUPPORTED;
2477 : }
2478 :
2479 : /****************************************************************
2480 : ****************************************************************/
2481 :
2482 0 : WERROR _netr_DsrEnumerateDomainTrusts(struct pipes_struct *p,
2483 : struct netr_DsrEnumerateDomainTrusts *r)
2484 : {
2485 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2486 0 : return WERR_NOT_SUPPORTED;
2487 : }
2488 :
2489 : /****************************************************************
2490 : ****************************************************************/
2491 :
2492 0 : WERROR _netr_DsrDeregisterDNSHostRecords(struct pipes_struct *p,
2493 : struct netr_DsrDeregisterDNSHostRecords *r)
2494 : {
2495 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2496 0 : return WERR_NOT_SUPPORTED;
2497 : }
2498 :
2499 : /****************************************************************
2500 : ****************************************************************/
2501 :
2502 0 : NTSTATUS _netr_ServerTrustPasswordsGet(struct pipes_struct *p,
2503 : struct netr_ServerTrustPasswordsGet *r)
2504 : {
2505 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2506 0 : return NT_STATUS_NOT_IMPLEMENTED;
2507 : }
2508 :
2509 : /****************************************************************
2510 : ****************************************************************/
2511 :
2512 0 : static NTSTATUS fill_forest_trust_array(TALLOC_CTX *mem_ctx,
2513 : struct lsa_ForestTrustInformation *info)
2514 : {
2515 0 : struct lsa_ForestTrustRecord *e;
2516 0 : struct pdb_domain_info *dom_info;
2517 0 : struct lsa_ForestTrustDomainInfo *domain_info;
2518 0 : char **upn_suffixes = NULL;
2519 0 : uint32_t num_suffixes = 0;
2520 0 : uint32_t i = 0;
2521 0 : NTSTATUS status;
2522 :
2523 0 : dom_info = pdb_get_domain_info(mem_ctx);
2524 0 : if (dom_info == NULL) {
2525 0 : return NT_STATUS_NO_MEMORY;
2526 : }
2527 :
2528 0 : info->count = 2;
2529 :
2530 0 : become_root();
2531 0 : status = pdb_enum_upn_suffixes(info, &num_suffixes, &upn_suffixes);
2532 0 : unbecome_root();
2533 0 : if (NT_STATUS_IS_OK(status) && (num_suffixes > 0)) {
2534 0 : info->count += num_suffixes;
2535 : }
2536 :
2537 0 : info->entries = talloc_array(info, struct lsa_ForestTrustRecord *, info->count);
2538 0 : if (info->entries == NULL) {
2539 0 : return NT_STATUS_NO_MEMORY;
2540 : }
2541 :
2542 0 : e = talloc(info, struct lsa_ForestTrustRecord);
2543 0 : if (e == NULL) {
2544 0 : return NT_STATUS_NO_MEMORY;
2545 : }
2546 :
2547 0 : e->flags = 0;
2548 0 : e->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME;
2549 0 : e->time = 0; /* so far always 0 in trces. */
2550 0 : e->forest_trust_data.top_level_name.string = talloc_steal(info,
2551 : dom_info->dns_forest);
2552 :
2553 0 : info->entries[0] = e;
2554 :
2555 0 : if (num_suffixes > 0) {
2556 0 : for (i = 0; i < num_suffixes ; i++) {
2557 0 : e = talloc(info, struct lsa_ForestTrustRecord);
2558 0 : if (e == NULL) {
2559 0 : return NT_STATUS_NO_MEMORY;
2560 : }
2561 :
2562 0 : e->flags = 0;
2563 0 : e->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME;
2564 0 : e->time = 0; /* so far always 0 in traces. */
2565 0 : e->forest_trust_data.top_level_name.string = upn_suffixes[i];
2566 0 : info->entries[1 + i] = e;
2567 : }
2568 : }
2569 :
2570 0 : e = talloc(info, struct lsa_ForestTrustRecord);
2571 0 : if (e == NULL) {
2572 0 : return NT_STATUS_NO_MEMORY;
2573 : }
2574 :
2575 : /* TODO: check if disabled and set flags accordingly */
2576 0 : e->flags = 0;
2577 0 : e->type = LSA_FOREST_TRUST_DOMAIN_INFO;
2578 0 : e->time = 0; /* so far always 0 in traces. */
2579 :
2580 0 : domain_info = &e->forest_trust_data.domain_info;
2581 0 : domain_info->domain_sid = dom_sid_dup(info, &dom_info->sid);
2582 :
2583 0 : domain_info->dns_domain_name.string = talloc_steal(info,
2584 : dom_info->dns_domain);
2585 0 : domain_info->netbios_domain_name.string = talloc_steal(info,
2586 : dom_info->name);
2587 :
2588 0 : info->entries[info->count - 1] = e;
2589 :
2590 0 : return NT_STATUS_OK;
2591 : }
2592 :
2593 : /****************************************************************
2594 : ****************************************************************/
2595 :
2596 0 : WERROR _netr_DsRGetForestTrustInformation(struct pipes_struct *p,
2597 : struct netr_DsRGetForestTrustInformation *r)
2598 : {
2599 0 : struct dcesrv_call_state *dce_call = p->dce_call;
2600 0 : struct auth_session_info *session_info =
2601 0 : dcesrv_call_session_info(dce_call);
2602 0 : NTSTATUS status;
2603 0 : struct lsa_ForestTrustInformation *info, **info_ptr;
2604 0 : enum security_user_level security_level;
2605 :
2606 0 : security_level = security_session_user_level(session_info, NULL);
2607 0 : if (security_level < SECURITY_USER) {
2608 0 : return WERR_ACCESS_DENIED;
2609 : }
2610 :
2611 0 : if (r->in.flags & (~DS_GFTI_UPDATE_TDO)) {
2612 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2613 0 : return WERR_INVALID_FLAGS;
2614 : }
2615 :
2616 0 : if ((r->in.flags & DS_GFTI_UPDATE_TDO) && (lp_server_role() != ROLE_DOMAIN_PDC)) {
2617 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2618 0 : return WERR_NERR_NOTPRIMARY;
2619 : }
2620 :
2621 0 : if ((r->in.trusted_domain_name == NULL) && (r->in.flags & DS_GFTI_UPDATE_TDO)) {
2622 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2623 0 : return WERR_INVALID_PARAMETER;
2624 : }
2625 :
2626 : /* retrieve forest trust information and stop further processing */
2627 0 : if (r->in.trusted_domain_name == NULL) {
2628 0 : info_ptr = talloc(p->mem_ctx, struct lsa_ForestTrustInformation *);
2629 0 : if (info_ptr == NULL) {
2630 0 : p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2631 0 : return WERR_NOT_ENOUGH_MEMORY;
2632 : }
2633 0 : info = talloc_zero(info_ptr, struct lsa_ForestTrustInformation);
2634 0 : if (info == NULL) {
2635 0 : p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2636 0 : return WERR_NOT_ENOUGH_MEMORY;
2637 : }
2638 :
2639 : /* Fill forest trust information and expand UPN suffixes list */
2640 0 : status = fill_forest_trust_array(p->mem_ctx, info);
2641 0 : if (!NT_STATUS_IS_OK(status)) {
2642 0 : p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2643 0 : return WERR_NOT_ENOUGH_MEMORY;
2644 : }
2645 :
2646 0 : *info_ptr = info;
2647 0 : r->out.forest_trust_info = info_ptr;
2648 :
2649 0 : return WERR_OK;
2650 :
2651 : }
2652 :
2653 : /* TODO: implement remaining parts of DsrGetForestTrustInformation (opnum 43)
2654 : * when trusted_domain_name is not NULL */
2655 :
2656 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2657 0 : return WERR_NOT_SUPPORTED;
2658 : }
2659 :
2660 : /****************************************************************
2661 : _netr_GetForestTrustInformation
2662 : ****************************************************************/
2663 :
2664 0 : NTSTATUS _netr_GetForestTrustInformation(struct pipes_struct *p,
2665 : struct netr_GetForestTrustInformation *r)
2666 : {
2667 0 : NTSTATUS status;
2668 0 : struct netlogon_creds_CredentialState *creds;
2669 0 : struct lsa_ForestTrustInformation *info, **info_ptr;
2670 :
2671 : /* TODO: check server name */
2672 :
2673 0 : become_root();
2674 0 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
2675 : p->mem_ctx,
2676 : r->in.computer_name,
2677 : r->in.credential,
2678 : r->out.return_authenticator,
2679 : &creds);
2680 0 : unbecome_root();
2681 0 : if (!NT_STATUS_IS_OK(status)) {
2682 0 : return status;
2683 : }
2684 :
2685 0 : if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) &&
2686 0 : (creds->secure_channel_type != SEC_CHAN_DOMAIN)) {
2687 0 : return NT_STATUS_NOT_IMPLEMENTED;
2688 : }
2689 :
2690 0 : info_ptr = talloc(p->mem_ctx, struct lsa_ForestTrustInformation *);
2691 0 : if (!info_ptr) {
2692 0 : return NT_STATUS_NO_MEMORY;
2693 : }
2694 0 : info = talloc_zero(info_ptr, struct lsa_ForestTrustInformation);
2695 0 : if (!info) {
2696 0 : return NT_STATUS_NO_MEMORY;
2697 : }
2698 :
2699 : /* Fill forest trust information, do expand UPN suffixes list */
2700 0 : status = fill_forest_trust_array(p->mem_ctx, info);
2701 0 : if (!NT_STATUS_IS_OK(status)) {
2702 0 : return status;
2703 : }
2704 :
2705 0 : *info_ptr = info;
2706 0 : r->out.forest_trust_info = info_ptr;
2707 :
2708 0 : return NT_STATUS_OK;
2709 : }
2710 :
2711 : /****************************************************************
2712 : ****************************************************************/
2713 :
2714 0 : static NTSTATUS get_password_from_trustAuth(TALLOC_CTX *mem_ctx,
2715 : const DATA_BLOB *trustAuth_blob,
2716 : struct netlogon_creds_CredentialState *creds,
2717 : struct samr_Password *current_pw_enc,
2718 : struct samr_Password *previous_pw_enc)
2719 : {
2720 0 : enum ndr_err_code ndr_err;
2721 0 : struct trustAuthInOutBlob trustAuth;
2722 0 : NTSTATUS status;
2723 :
2724 0 : ndr_err = ndr_pull_struct_blob_all(trustAuth_blob, mem_ctx, &trustAuth,
2725 : (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2726 0 : if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2727 0 : return NT_STATUS_UNSUCCESSFUL;
2728 : }
2729 :
2730 0 : if (trustAuth.count != 0 && trustAuth.current.count != 0 &&
2731 0 : trustAuth.current.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) {
2732 0 : mdfour(current_pw_enc->hash,
2733 0 : trustAuth.current.array[0].AuthInfo.clear.password,
2734 0 : trustAuth.current.array[0].AuthInfo.clear.size);
2735 0 : status = netlogon_creds_des_encrypt(creds, current_pw_enc);
2736 0 : if (!NT_STATUS_IS_OK(status)) {
2737 0 : return status;
2738 : }
2739 : } else {
2740 0 : return NT_STATUS_UNSUCCESSFUL;
2741 : }
2742 :
2743 :
2744 0 : if (trustAuth.previous.count != 0 &&
2745 0 : trustAuth.previous.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) {
2746 0 : mdfour(previous_pw_enc->hash,
2747 0 : trustAuth.previous.array[0].AuthInfo.clear.password,
2748 0 : trustAuth.previous.array[0].AuthInfo.clear.size);
2749 0 : status = netlogon_creds_des_encrypt(creds, previous_pw_enc);
2750 0 : if (!NT_STATUS_IS_OK(status)) {
2751 0 : return status;
2752 : }
2753 : } else {
2754 0 : ZERO_STRUCTP(previous_pw_enc);
2755 : }
2756 :
2757 0 : return NT_STATUS_OK;
2758 : }
2759 :
2760 : /****************************************************************
2761 : _netr_ServerGetTrustInfo
2762 : ****************************************************************/
2763 :
2764 0 : NTSTATUS _netr_ServerGetTrustInfo(struct pipes_struct *p,
2765 : struct netr_ServerGetTrustInfo *r)
2766 : {
2767 0 : NTSTATUS status;
2768 0 : struct netlogon_creds_CredentialState *creds;
2769 0 : char *account_name;
2770 0 : size_t account_name_last;
2771 0 : bool trusted;
2772 0 : struct netr_TrustInfo *trust_info;
2773 0 : struct pdb_trusted_domain *td;
2774 :
2775 : /* TODO: check server name */
2776 :
2777 0 : become_root();
2778 0 : status = dcesrv_netr_creds_server_step_check(p->dce_call,
2779 : p->mem_ctx,
2780 : r->in.computer_name,
2781 : r->in.credential,
2782 : r->out.return_authenticator,
2783 : &creds);
2784 0 : unbecome_root();
2785 0 : if (!NT_STATUS_IS_OK(status)) {
2786 0 : return status;
2787 : }
2788 :
2789 0 : account_name = talloc_strdup(p->mem_ctx, r->in.account_name);
2790 0 : if (account_name == NULL) {
2791 0 : return NT_STATUS_NO_MEMORY;
2792 : }
2793 :
2794 0 : account_name_last = strlen(account_name);
2795 0 : if (account_name_last == 0) {
2796 0 : return NT_STATUS_INVALID_PARAMETER;
2797 : }
2798 0 : account_name_last--;
2799 0 : if (account_name[account_name_last] == '.') {
2800 0 : account_name[account_name_last] = '\0';
2801 : }
2802 :
2803 0 : if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) &&
2804 0 : (creds->secure_channel_type != SEC_CHAN_DOMAIN)) {
2805 0 : trusted = false;
2806 : } else {
2807 0 : trusted = true;
2808 : }
2809 :
2810 :
2811 0 : if (trusted) {
2812 0 : account_name_last = strlen(account_name);
2813 0 : if (account_name_last == 0) {
2814 0 : return NT_STATUS_INVALID_PARAMETER;
2815 : }
2816 0 : account_name_last--;
2817 0 : if (account_name[account_name_last] == '$') {
2818 0 : account_name[account_name_last] = '\0';
2819 : }
2820 :
2821 0 : status = pdb_get_trusted_domain(p->mem_ctx, account_name, &td);
2822 0 : if (!NT_STATUS_IS_OK(status)) {
2823 0 : return status;
2824 : }
2825 :
2826 0 : if (r->out.trust_info != NULL) {
2827 0 : trust_info = talloc_zero(p->mem_ctx, struct netr_TrustInfo);
2828 0 : if (trust_info == NULL) {
2829 0 : return NT_STATUS_NO_MEMORY;
2830 : }
2831 0 : trust_info->count = 1;
2832 :
2833 0 : trust_info->data = talloc_array(trust_info, uint32_t, 1);
2834 0 : if (trust_info->data == NULL) {
2835 0 : return NT_STATUS_NO_MEMORY;
2836 : }
2837 0 : trust_info->data[0] = td->trust_attributes;
2838 :
2839 0 : *r->out.trust_info = trust_info;
2840 : }
2841 :
2842 0 : if (td->trust_auth_incoming.data == NULL) {
2843 0 : return NT_STATUS_INVALID_PARAMETER;
2844 : }
2845 :
2846 0 : status = get_password_from_trustAuth(p->mem_ctx,
2847 0 : &td->trust_auth_incoming,
2848 : creds,
2849 : r->out.new_owf_password,
2850 : r->out.old_owf_password);
2851 :
2852 0 : if (!NT_STATUS_IS_OK(status)) {
2853 0 : return status;
2854 : }
2855 :
2856 : } else {
2857 : /* TODO: look for machine password */
2858 0 : ZERO_STRUCTP(r->out.new_owf_password);
2859 0 : ZERO_STRUCTP(r->out.old_owf_password);
2860 :
2861 0 : return NT_STATUS_NOT_IMPLEMENTED;
2862 : }
2863 :
2864 0 : return NT_STATUS_OK;
2865 : }
2866 :
2867 : /****************************************************************
2868 : ****************************************************************/
2869 :
2870 0 : NTSTATUS _netr_Unused47(struct pipes_struct *p,
2871 : struct netr_Unused47 *r)
2872 : {
2873 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2874 0 : return NT_STATUS_NOT_IMPLEMENTED;
2875 : }
2876 :
2877 : /****************************************************************
2878 : ****************************************************************/
2879 :
2880 0 : NTSTATUS _netr_DsrUpdateReadOnlyServerDnsRecords(struct pipes_struct *p,
2881 : struct netr_DsrUpdateReadOnlyServerDnsRecords *r)
2882 : {
2883 0 : p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2884 0 : return NT_STATUS_NOT_IMPLEMENTED;
2885 : }
2886 :
2887 : /*
2888 : * Define the bind function that will be used by ndr_netlogon_scompat.c,
2889 : * included at the bottom of this file.
2890 : */
2891 : #define DCESRV_INTERFACE_NETLOGON_BIND(context, iface) \
2892 : dcesrv_interface_netlogon_bind(context, iface)
2893 :
2894 212 : static NTSTATUS dcesrv_interface_netlogon_bind(struct dcesrv_connection_context *context,
2895 : const struct dcesrv_interface *iface)
2896 : {
2897 212 : struct loadparm_context *lp_ctx = context->conn->dce_ctx->lp_ctx;
2898 212 : int schannel = lpcfg_server_schannel(lp_ctx);
2899 212 : bool schannel_global_required = (schannel == true);
2900 212 : bool global_require_seal = lpcfg_server_schannel_require_seal(lp_ctx);
2901 0 : static bool warned_global_schannel_once = false;
2902 0 : static bool warned_global_seal_once = false;
2903 :
2904 212 : if (!schannel_global_required && !warned_global_schannel_once) {
2905 : /*
2906 : * We want admins to notice their misconfiguration!
2907 : */
2908 0 : D_ERR("CVE-2020-1472(ZeroLogon): "
2909 : "Please configure 'server schannel = yes' (the default), "
2910 : "See https://bugzilla.samba.org/show_bug.cgi?id=14497\n");
2911 0 : warned_global_schannel_once = true;
2912 : }
2913 :
2914 212 : if (!global_require_seal && !warned_global_seal_once) {
2915 : /*
2916 : * We want admins to notice their misconfiguration!
2917 : */
2918 0 : D_ERR("CVE-2022-38023 (and others): "
2919 : "Please configure 'server schannel require seal = yes' (the default), "
2920 : "See https://bugzilla.samba.org/show_bug.cgi?id=15240\n");
2921 0 : warned_global_seal_once = true;
2922 : }
2923 :
2924 212 : return NT_STATUS_OK;
2925 : }
2926 :
2927 : /* include the generated boilerplate */
2928 : #include "librpc/gen_ndr/ndr_netlogon_scompat.c"
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