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