Line data Source code
1 : /*
2 : Unix SMB/CIFS implementation.
3 : Password and authentication handling
4 : Copyright (C) Andrew Bartlett <abartlet@samba.org> 2001-2010
5 : Copyright (C) Gerald Carter 2003
6 : Copyright (C) Stefan Metzmacher 2005
7 : Copyright (C) Matthias Dieter Wallnöfer 2009
8 :
9 : This program is free software; you can redistribute it and/or modify
10 : it under the terms of the GNU General Public License as published by
11 : the Free Software Foundation; either version 3 of the License, or
12 : (at your option) any later version.
13 :
14 : This program is distributed in the hope that it will be useful,
15 : but WITHOUT ANY WARRANTY; without even the implied warranty of
16 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 : GNU General Public License for more details.
18 :
19 : You should have received a copy of the GNU General Public License
20 : along with this program. If not, see <http://www.gnu.org/licenses/>.
21 : */
22 :
23 : #include "includes.h"
24 : #include "system/time.h"
25 : #include "auth/auth.h"
26 : #include <ldb.h>
27 : #include "dsdb/samdb/samdb.h"
28 : #include "libcli/security/security.h"
29 : #include "auth/auth_sam.h"
30 : #include "dsdb/common/util.h"
31 : #include "libcli/ldap/ldap_ndr.h"
32 : #include "param/param.h"
33 : #include "librpc/gen_ndr/ndr_winbind_c.h"
34 : #include "lib/dbwrap/dbwrap.h"
35 : #include "cluster/cluster.h"
36 :
37 : #undef DBGC_CLASS
38 : #define DBGC_CLASS DBGC_AUTH
39 :
40 : #define KRBTGT_ATTRS \
41 : /* required for the krb5 kdc */ \
42 : "objectClass", \
43 : "sAMAccountName", \
44 : "userPrincipalName", \
45 : "servicePrincipalName", \
46 : "msDS-KeyVersionNumber", \
47 : "msDS-SecondaryKrbTgtNumber", \
48 : "msDS-SupportedEncryptionTypes", \
49 : "supplementalCredentials", \
50 : "msDS-AllowedToDelegateTo", \
51 : "msDS-AllowedToActOnBehalfOfOtherIdentity", \
52 : \
53 : /* passwords */ \
54 : "unicodePwd", \
55 : \
56 : "userAccountControl", \
57 : "msDS-User-Account-Control-Computed", \
58 : "objectSid", \
59 : \
60 : "pwdLastSet", \
61 : "msDS-UserPasswordExpiryTimeComputed", \
62 : "accountExpires", \
63 : \
64 : /* Needed for RODC rule processing */ \
65 : "msDS-KrbTgtLinkBL", \
66 : \
67 : /* Required for Group Managed Service Accounts. */ \
68 : "msDS-ManagedPasswordId", \
69 : "msDS-ManagedPasswordInterval", \
70 : "whenCreated"
71 :
72 : #define AUTHN_POLICY_ATTRS \
73 : /* Required for authentication policies / silos */ \
74 : "msDS-AssignedAuthNPolicy", \
75 : "msDS-AssignedAuthNPolicySilo"
76 :
77 : const char *krbtgt_attrs[] = {
78 : /*
79 : * Authentication policies will not be enforced on the TGS
80 : * account. Don’t include the relevant attributes in the account search.
81 : */
82 : KRBTGT_ATTRS, NULL
83 : };
84 :
85 : const char *server_attrs[] = {
86 : KRBTGT_ATTRS,
87 : AUTHN_POLICY_ATTRS,
88 : NULL
89 : };
90 :
91 : const char *user_attrs[] = {
92 : /*
93 : * This ordering (having msDS-ResultantPSO first) is
94 : * important. By processing this attribute first it is
95 : * available in the operational module for the other PSO
96 : * attribute calculations to use.
97 : */
98 : "msDS-ResultantPSO",
99 :
100 : KRBTGT_ATTRS,
101 : AUTHN_POLICY_ATTRS,
102 :
103 : "logonHours",
104 :
105 : /*
106 : * To allow us to zero the badPwdCount and lockoutTime on
107 : * successful logon, without database churn
108 : */
109 : "lockoutTime",
110 :
111 : /*
112 : * Needed for SendToSAM requests
113 : */
114 : "objectGUID",
115 :
116 : /* check 'allowed workstations' */
117 : "userWorkstations",
118 :
119 : /* required for user_info_dc, not access control: */
120 : "displayName",
121 : "scriptPath",
122 : "profilePath",
123 : "homeDirectory",
124 : "homeDrive",
125 : "lastLogon",
126 : "lastLogonTimestamp",
127 : "lastLogoff",
128 : "accountExpires",
129 : "badPwdCount",
130 : "logonCount",
131 : "primaryGroupID",
132 : "memberOf",
133 : "badPasswordTime",
134 : "lmPwdHistory",
135 : "ntPwdHistory",
136 : NULL,
137 : };
138 :
139 : /****************************************************************************
140 : Check if a user is allowed to logon at this time. Note this is the
141 : servers local time, as logon hours are just specified as a weekly
142 : bitmask.
143 : ****************************************************************************/
144 :
145 71680 : static bool logon_hours_ok(struct ldb_message *msg, const char *name_for_logs)
146 : {
147 : /* In logon hours first bit is Sunday from 12AM to 1AM */
148 3186 : const struct ldb_val *hours;
149 3186 : struct tm *utctime;
150 3186 : time_t lasttime;
151 3186 : const char *asct;
152 3186 : uint8_t bitmask, bitpos;
153 :
154 71680 : hours = ldb_msg_find_ldb_val(msg, "logonHours");
155 71680 : if (!hours) {
156 71673 : DEBUG(5,("logon_hours_ok: No hours restrictions for user %s\n", name_for_logs));
157 71673 : return true;
158 : }
159 :
160 7 : if (hours->length != 168/8) {
161 0 : DEBUG(5,("logon_hours_ok: malformed logon hours restrictions for user %s\n", name_for_logs));
162 0 : return true;
163 : }
164 :
165 7 : lasttime = time(NULL);
166 7 : utctime = gmtime(&lasttime);
167 7 : if (!utctime) {
168 0 : DEBUG(1, ("logon_hours_ok: failed to get gmtime. Failing logon for user %s\n",
169 : name_for_logs));
170 0 : return false;
171 : }
172 :
173 : /* find the corresponding byte and bit */
174 7 : bitpos = (utctime->tm_wday * 24 + utctime->tm_hour) % 168;
175 7 : bitmask = 1 << (bitpos % 8);
176 :
177 7 : if (! (hours->data[bitpos/8] & bitmask)) {
178 4 : struct tm *t = localtime(&lasttime);
179 4 : if (!t) {
180 0 : asct = "INVALID TIME";
181 : } else {
182 4 : asct = asctime(t);
183 4 : if (!asct) {
184 0 : asct = "INVALID TIME";
185 : }
186 : }
187 :
188 4 : DEBUG(1, ("logon_hours_ok: Account for user %s not allowed to "
189 : "logon at this time (%s).\n",
190 : name_for_logs, asct ));
191 4 : return false;
192 : }
193 :
194 3 : asct = asctime(utctime);
195 3 : DEBUG(5,("logon_hours_ok: user %s allowed to logon at this time (%s)\n",
196 : name_for_logs, asct ? asct : "UNKNOWN TIME" ));
197 :
198 3 : return true;
199 : }
200 :
201 : /****************************************************************************
202 : Do a specific test for a SAM_ACCOUNT being valid for this connection
203 : (ie not disabled, expired and the like).
204 : ****************************************************************************/
205 72339 : _PUBLIC_ NTSTATUS authsam_account_ok(TALLOC_CTX *mem_ctx,
206 : struct ldb_context *sam_ctx,
207 : uint32_t logon_parameters,
208 : struct ldb_dn *domain_dn,
209 : struct ldb_message *msg,
210 : const char *logon_workstation,
211 : const char *name_for_logs,
212 : bool allow_domain_trust,
213 : bool password_change)
214 : {
215 3186 : uint16_t acct_flags;
216 3186 : const char *workstation_list;
217 3186 : NTTIME acct_expiry;
218 3186 : NTTIME must_change_time;
219 72339 : struct timeval tv_now = timeval_current();
220 72339 : NTTIME now = timeval_to_nttime(&tv_now);
221 :
222 72339 : DEBUG(4,("authsam_account_ok: Checking SMB password for user %s\n", name_for_logs));
223 :
224 72339 : acct_flags = samdb_result_acct_flags(msg, "msDS-User-Account-Control-Computed");
225 :
226 72339 : acct_expiry = samdb_result_account_expires(msg);
227 :
228 : /* Check for when we must change this password, taking the
229 : * userAccountControl flags into account */
230 72339 : must_change_time = samdb_result_nttime(msg,
231 : "msDS-UserPasswordExpiryTimeComputed", 0);
232 :
233 72339 : workstation_list = ldb_msg_find_attr_as_string(msg, "userWorkstations", NULL);
234 :
235 : /* Quit if the account was disabled. */
236 72339 : if (acct_flags & ACB_DISABLED) {
237 276 : DEBUG(2,("authsam_account_ok: Account for user '%s' was disabled.\n", name_for_logs));
238 276 : return NT_STATUS_ACCOUNT_DISABLED;
239 : }
240 :
241 : /* Quit if the account was locked out. */
242 72063 : if (acct_flags & ACB_AUTOLOCK) {
243 26 : DEBUG(2,("authsam_account_ok: Account for user %s was locked out.\n", name_for_logs));
244 26 : return NT_STATUS_ACCOUNT_LOCKED_OUT;
245 : }
246 :
247 : /* Test account expire time */
248 72037 : if (now > acct_expiry) {
249 0 : DEBUG(2,("authsam_account_ok: Account for user '%s' has expired.\n", name_for_logs));
250 0 : DEBUG(3,("authsam_account_ok: Account expired at '%s'.\n",
251 : nt_time_string(mem_ctx, acct_expiry)));
252 0 : return NT_STATUS_ACCOUNT_EXPIRED;
253 : }
254 :
255 : /* check for immediate expiry "must change at next logon" (but not if this is a password change request) */
256 72037 : if ((must_change_time == 0) && !password_change) {
257 14 : DEBUG(2,("sam_account_ok: Account for user '%s' password must change!.\n",
258 : name_for_logs));
259 14 : return NT_STATUS_PASSWORD_MUST_CHANGE;
260 : }
261 :
262 : /* check for expired password (but not if this is a password change request) */
263 72023 : if ((must_change_time < now) && !password_change) {
264 0 : DEBUG(2,("sam_account_ok: Account for user '%s' password expired!.\n",
265 : name_for_logs));
266 0 : DEBUG(2,("sam_account_ok: Password expired at '%s' unix time.\n",
267 : nt_time_string(mem_ctx, must_change_time)));
268 0 : return NT_STATUS_PASSWORD_EXPIRED;
269 : }
270 :
271 : /* Test workstation. Workstation list is comma separated. */
272 72023 : if (logon_workstation && workstation_list && *workstation_list) {
273 343 : bool invalid_ws = true;
274 0 : int i;
275 343 : char **workstations = str_list_make(mem_ctx, workstation_list, ",");
276 :
277 686 : for (i = 0; workstations && workstations[i]; i++) {
278 343 : DEBUG(10,("sam_account_ok: checking for workstation match '%s' and '%s'\n",
279 : workstations[i], logon_workstation));
280 :
281 343 : if (strequal(workstations[i], logon_workstation)) {
282 0 : invalid_ws = false;
283 0 : break;
284 : }
285 : }
286 :
287 343 : talloc_free(workstations);
288 :
289 343 : if (invalid_ws) {
290 343 : return NT_STATUS_INVALID_WORKSTATION;
291 : }
292 : }
293 :
294 71680 : if (!logon_hours_ok(msg, name_for_logs)) {
295 4 : return NT_STATUS_INVALID_LOGON_HOURS;
296 : }
297 :
298 71676 : if (!allow_domain_trust) {
299 23412 : if (acct_flags & ACB_DOMTRUST) {
300 4 : DEBUG(2,("sam_account_ok: Domain trust account %s denied by server\n", name_for_logs));
301 4 : return NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT;
302 : }
303 : }
304 71672 : if (!(logon_parameters & MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT)) {
305 10580 : if (acct_flags & ACB_SVRTRUST) {
306 0 : DEBUG(2,("sam_account_ok: Server trust account %s denied by server\n", name_for_logs));
307 0 : return NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT;
308 : }
309 : }
310 71672 : if (!(logon_parameters & MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT)) {
311 : /* TODO: this fails with current solaris client. We
312 : need to work with Gordon to work out why */
313 9554 : if (acct_flags & ACB_WSTRUST) {
314 342 : DEBUG(4,("sam_account_ok: Wksta trust account %s denied by server\n", name_for_logs));
315 342 : return NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT;
316 : }
317 : }
318 :
319 71330 : return NT_STATUS_OK;
320 : }
321 :
322 128913 : static NTSTATUS authsam_domain_group_filter(TALLOC_CTX *mem_ctx,
323 : char **_filter)
324 : {
325 128913 : char *filter = NULL;
326 :
327 128913 : *_filter = NULL;
328 :
329 128913 : filter = talloc_strdup(mem_ctx, "(&(objectClass=group)");
330 128913 : if (filter == NULL) {
331 0 : return NT_STATUS_NO_MEMORY;
332 : }
333 :
334 : /*
335 : * Skip all builtin groups, they're added later.
336 : */
337 128913 : talloc_asprintf_addbuf(&filter,
338 : "(!(groupType:"LDB_OID_COMPARATOR_AND":=%u))",
339 : GROUP_TYPE_BUILTIN_LOCAL_GROUP);
340 128913 : if (filter == NULL) {
341 0 : return NT_STATUS_NO_MEMORY;
342 : }
343 : /*
344 : * Only include security groups.
345 : */
346 128913 : talloc_asprintf_addbuf(&filter,
347 : "(groupType:"LDB_OID_COMPARATOR_AND":=%u))",
348 : GROUP_TYPE_SECURITY_ENABLED);
349 128913 : if (filter == NULL) {
350 0 : return NT_STATUS_NO_MEMORY;
351 : }
352 :
353 128913 : *_filter = filter;
354 128913 : return NT_STATUS_OK;
355 : }
356 :
357 79225 : _PUBLIC_ NTSTATUS authsam_make_user_info_dc(TALLOC_CTX *mem_ctx,
358 : struct ldb_context *sam_ctx,
359 : const char *netbios_name,
360 : const char *domain_name,
361 : const char *dns_domain_name,
362 : struct ldb_dn *domain_dn,
363 : const struct ldb_message *msg,
364 : DATA_BLOB user_sess_key,
365 : DATA_BLOB lm_sess_key,
366 : struct auth_user_info_dc **_user_info_dc)
367 : {
368 3228 : NTSTATUS status;
369 3228 : int ret;
370 3228 : struct auth_user_info_dc *user_info_dc;
371 3228 : struct auth_user_info *info;
372 79225 : const char *str = NULL;
373 79225 : char *filter = NULL;
374 : /* SIDs for the account and his primary group */
375 3228 : struct dom_sid *account_sid;
376 3228 : struct dom_sid_buf buf;
377 79225 : const char *primary_group_dn_str = NULL;
378 3228 : DATA_BLOB primary_group_blob;
379 79225 : struct ldb_dn *primary_group_dn = NULL;
380 79225 : struct ldb_message *primary_group_msg = NULL;
381 3228 : unsigned primary_group_type;
382 : /* SID structures for the expanded group memberships */
383 79225 : struct auth_SidAttr *sids = NULL;
384 79225 : uint32_t num_sids = 0;
385 3228 : unsigned int i;
386 3228 : struct dom_sid *domain_sid;
387 3228 : TALLOC_CTX *tmp_ctx;
388 3228 : struct ldb_message_element *el;
389 3228 : static const char * const group_type_attrs[] = { "groupType", NULL };
390 :
391 79225 : if (msg == NULL) {
392 0 : return NT_STATUS_INVALID_PARAMETER;
393 : }
394 :
395 79225 : user_info_dc = talloc_zero(mem_ctx, struct auth_user_info_dc);
396 79225 : NT_STATUS_HAVE_NO_MEMORY(user_info_dc);
397 :
398 79225 : tmp_ctx = talloc_new(user_info_dc);
399 79225 : if (tmp_ctx == NULL) {
400 0 : TALLOC_FREE(user_info_dc);
401 0 : return NT_STATUS_NO_MEMORY;
402 : }
403 :
404 : /*
405 : * We'll typically store three SIDs: the SID of the user, the SID of the
406 : * primary group, and a copy of the latter if it's not a resource
407 : * group. Allocate enough memory for these three SIDs.
408 : */
409 79225 : sids = talloc_zero_array(user_info_dc, struct auth_SidAttr, 3);
410 79225 : if (sids == NULL) {
411 0 : TALLOC_FREE(user_info_dc);
412 0 : return NT_STATUS_NO_MEMORY;
413 : }
414 :
415 79225 : num_sids = 2;
416 :
417 79225 : account_sid = samdb_result_dom_sid(tmp_ctx, msg, "objectSid");
418 79225 : if (account_sid == NULL) {
419 0 : TALLOC_FREE(user_info_dc);
420 0 : return NT_STATUS_NO_MEMORY;
421 : }
422 :
423 79225 : status = dom_sid_split_rid(tmp_ctx, account_sid, &domain_sid, NULL);
424 79225 : if (!NT_STATUS_IS_OK(status)) {
425 0 : talloc_free(user_info_dc);
426 0 : return status;
427 : }
428 :
429 79225 : sids[PRIMARY_USER_SID_INDEX].sid = *account_sid;
430 79225 : sids[PRIMARY_USER_SID_INDEX].attrs = SE_GROUP_DEFAULT_FLAGS;
431 79225 : sids[PRIMARY_GROUP_SID_INDEX].sid = *domain_sid;
432 79225 : sid_append_rid(&sids[PRIMARY_GROUP_SID_INDEX].sid, ldb_msg_find_attr_as_uint(msg, "primaryGroupID", ~0));
433 79225 : sids[PRIMARY_GROUP_SID_INDEX].attrs = SE_GROUP_DEFAULT_FLAGS;
434 :
435 : /*
436 : * Filter out builtin groups from this token. We will search
437 : * for builtin groups later, and not include them in the PAC
438 : * or SamLogon validation info.
439 : */
440 79225 : status = authsam_domain_group_filter(tmp_ctx, &filter);
441 79225 : if (!NT_STATUS_IS_OK(status)) {
442 0 : TALLOC_FREE(user_info_dc);
443 0 : return status;
444 : }
445 :
446 79225 : primary_group_dn_str = talloc_asprintf(
447 : tmp_ctx,
448 : "<SID=%s>",
449 79225 : dom_sid_str_buf(&sids[PRIMARY_GROUP_SID_INDEX].sid, &buf));
450 79225 : if (primary_group_dn_str == NULL) {
451 0 : TALLOC_FREE(user_info_dc);
452 0 : return NT_STATUS_NO_MEMORY;
453 : }
454 :
455 : /* Get the DN of the primary group. */
456 79225 : primary_group_dn = ldb_dn_new(tmp_ctx, sam_ctx, primary_group_dn_str);
457 79225 : if (primary_group_dn == NULL) {
458 0 : TALLOC_FREE(user_info_dc);
459 0 : return NT_STATUS_NO_MEMORY;
460 : }
461 :
462 : /*
463 : * Do a search for the primary group, for the purpose of checking
464 : * whether it's a resource group.
465 : */
466 79225 : ret = dsdb_search_one(sam_ctx, tmp_ctx,
467 : &primary_group_msg,
468 : primary_group_dn,
469 : LDB_SCOPE_BASE,
470 : group_type_attrs,
471 : 0,
472 : NULL);
473 79225 : if (ret != LDB_SUCCESS) {
474 0 : talloc_free(user_info_dc);
475 0 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
476 : }
477 :
478 : /* Check the type of the primary group. */
479 79225 : primary_group_type = ldb_msg_find_attr_as_uint(primary_group_msg, "groupType", 0);
480 79225 : if (primary_group_type & GROUP_TYPE_RESOURCE_GROUP) {
481 : /*
482 : * If it's a resource group, we might as well indicate that in
483 : * its attributes. At any rate, the primary group's attributes
484 : * are unlikely to be used in the code, as there's nowhere to
485 : * store them.
486 : */
487 18 : sids[PRIMARY_GROUP_SID_INDEX].attrs |= SE_GROUP_RESOURCE;
488 : } else {
489 : /*
490 : * The primary group is not a resource group. Make a copy of its
491 : * SID to ensure it is added to the Base SIDs in the PAC.
492 : */
493 79207 : sids[REMAINING_SIDS_INDEX] = sids[PRIMARY_GROUP_SID_INDEX];
494 79207 : ++num_sids;
495 : }
496 :
497 79225 : primary_group_blob = data_blob_string_const(primary_group_dn_str);
498 :
499 : /* Expands the primary group - this function takes in
500 : * memberOf-like values, so we fake one up with the
501 : * <SID=S-...> format of DN and then let it expand
502 : * them, as long as they meet the filter - so only
503 : * domain groups, not builtin groups
504 : *
505 : * The primary group is still treated specially, so we set the
506 : * 'only childs' flag to true
507 : */
508 79225 : status = dsdb_expand_nested_groups(sam_ctx, &primary_group_blob, true, filter,
509 : user_info_dc, &sids, &num_sids);
510 79225 : if (!NT_STATUS_IS_OK(status)) {
511 0 : talloc_free(user_info_dc);
512 0 : return status;
513 : }
514 :
515 : /* Expands the additional groups */
516 79225 : el = ldb_msg_find_element(msg, "memberOf");
517 328269 : for (i = 0; el && i < el->num_values; i++) {
518 : /* This function takes in memberOf values and expands
519 : * them, as long as they meet the filter - so only
520 : * domain groups, not builtin groups */
521 245816 : status = dsdb_expand_nested_groups(sam_ctx, &el->values[i], false, filter,
522 : user_info_dc, &sids, &num_sids);
523 245816 : if (!NT_STATUS_IS_OK(status)) {
524 0 : talloc_free(user_info_dc);
525 0 : return status;
526 : }
527 : }
528 :
529 79225 : user_info_dc->sids = sids;
530 79225 : user_info_dc->num_sids = num_sids;
531 :
532 79225 : user_info_dc->info = info = talloc_zero(user_info_dc, struct auth_user_info);
533 79225 : if (user_info_dc->info == NULL) {
534 0 : talloc_free(user_info_dc);
535 0 : return NT_STATUS_NO_MEMORY;
536 : }
537 :
538 79225 : str = ldb_msg_find_attr_as_string(msg, "sAMAccountName", NULL);
539 79225 : info->account_name = talloc_strdup(info, str);
540 79225 : if (info->account_name == NULL) {
541 0 : TALLOC_FREE(user_info_dc);
542 0 : return NT_STATUS_NO_MEMORY;
543 : }
544 :
545 79225 : str = ldb_msg_find_attr_as_string(msg, "userPrincipalName", NULL);
546 79225 : if (str == NULL && dns_domain_name != NULL) {
547 68482 : info->user_principal_name = talloc_asprintf(info, "%s@%s",
548 : info->account_name,
549 : dns_domain_name);
550 68482 : if (info->user_principal_name == NULL) {
551 0 : TALLOC_FREE(user_info_dc);
552 0 : return NT_STATUS_NO_MEMORY;
553 : }
554 68482 : info->user_principal_constructed = true;
555 10743 : } else if (str != NULL) {
556 10645 : info->user_principal_name = talloc_strdup(info, str);
557 10645 : if (info->user_principal_name == NULL) {
558 0 : TALLOC_FREE(user_info_dc);
559 0 : return NT_STATUS_NO_MEMORY;
560 : }
561 : }
562 :
563 79225 : info->domain_name = talloc_strdup(info, domain_name);
564 79225 : if (info->domain_name == NULL) {
565 0 : TALLOC_FREE(user_info_dc);
566 0 : return NT_STATUS_NO_MEMORY;
567 : }
568 :
569 79225 : if (dns_domain_name != NULL) {
570 79127 : info->dns_domain_name = talloc_strdup(info, dns_domain_name);
571 79127 : if (info->dns_domain_name == NULL) {
572 0 : TALLOC_FREE(user_info_dc);
573 0 : return NT_STATUS_NO_MEMORY;
574 : }
575 : }
576 :
577 79225 : str = ldb_msg_find_attr_as_string(msg, "displayName", "");
578 79225 : info->full_name = talloc_strdup(info, str);
579 79225 : if (info->full_name == NULL) {
580 0 : TALLOC_FREE(user_info_dc);
581 0 : return NT_STATUS_NO_MEMORY;
582 : }
583 :
584 79225 : str = ldb_msg_find_attr_as_string(msg, "scriptPath", "");
585 79225 : info->logon_script = talloc_strdup(info, str);
586 79225 : if (info->logon_script == NULL) {
587 0 : TALLOC_FREE(user_info_dc);
588 0 : return NT_STATUS_NO_MEMORY;
589 : }
590 :
591 79225 : str = ldb_msg_find_attr_as_string(msg, "profilePath", "");
592 79225 : info->profile_path = talloc_strdup(info, str);
593 79225 : if (info->profile_path == NULL) {
594 0 : TALLOC_FREE(user_info_dc);
595 0 : return NT_STATUS_NO_MEMORY;
596 : }
597 :
598 79225 : str = ldb_msg_find_attr_as_string(msg, "homeDirectory", "");
599 79225 : info->home_directory = talloc_strdup(info, str);
600 79225 : if (info->home_directory == NULL) {
601 0 : TALLOC_FREE(user_info_dc);
602 0 : return NT_STATUS_NO_MEMORY;
603 : }
604 :
605 79225 : str = ldb_msg_find_attr_as_string(msg, "homeDrive", "");
606 79225 : info->home_drive = talloc_strdup(info, str);
607 79225 : if (info->home_drive == NULL) {
608 0 : TALLOC_FREE(user_info_dc);
609 0 : return NT_STATUS_NO_MEMORY;
610 : }
611 :
612 79225 : info->logon_server = talloc_strdup(info, netbios_name);
613 79225 : if (info->logon_server == NULL) {
614 0 : TALLOC_FREE(user_info_dc);
615 0 : return NT_STATUS_NO_MEMORY;
616 : }
617 :
618 79225 : info->last_logon = samdb_result_nttime(msg, "lastLogon", 0);
619 79225 : info->last_logoff = samdb_result_last_logoff(msg);
620 79225 : info->acct_expiry = samdb_result_account_expires(msg);
621 79225 : info->last_password_change = samdb_result_nttime(msg,
622 : "pwdLastSet", 0);
623 3228 : info->allow_password_change
624 79225 : = samdb_result_allow_password_change(sam_ctx, mem_ctx,
625 : domain_dn, msg, "pwdLastSet");
626 79225 : info->force_password_change = samdb_result_nttime(msg,
627 : "msDS-UserPasswordExpiryTimeComputed", 0);
628 79225 : info->logon_count = ldb_msg_find_attr_as_uint(msg, "logonCount", 0);
629 79225 : info->bad_password_count = ldb_msg_find_attr_as_uint(msg, "badPwdCount",
630 : 0);
631 :
632 79225 : info->acct_flags = samdb_result_acct_flags(msg, "msDS-User-Account-Control-Computed");
633 :
634 79225 : user_info_dc->user_session_key = data_blob_talloc(user_info_dc,
635 : user_sess_key.data,
636 : user_sess_key.length);
637 79225 : if (user_sess_key.data) {
638 0 : if (user_info_dc->user_session_key.data == NULL) {
639 0 : TALLOC_FREE(user_info_dc);
640 0 : return NT_STATUS_NO_MEMORY;
641 : }
642 : }
643 79225 : user_info_dc->lm_session_key = data_blob_talloc(user_info_dc,
644 : lm_sess_key.data,
645 : lm_sess_key.length);
646 79225 : if (lm_sess_key.data) {
647 0 : if (user_info_dc->lm_session_key.data == NULL) {
648 0 : TALLOC_FREE(user_info_dc);
649 0 : return NT_STATUS_NO_MEMORY;
650 : }
651 : }
652 :
653 79225 : if (info->acct_flags & ACB_SVRTRUST) {
654 : /* the SID_NT_ENTERPRISE_DCS SID gets added into the
655 : PAC */
656 3240 : user_info_dc->sids = talloc_realloc(user_info_dc,
657 : user_info_dc->sids,
658 : struct auth_SidAttr,
659 : user_info_dc->num_sids+1);
660 3240 : if (user_info_dc->sids == NULL) {
661 0 : TALLOC_FREE(user_info_dc);
662 0 : return NT_STATUS_NO_MEMORY;
663 : }
664 3240 : user_info_dc->sids[user_info_dc->num_sids].sid = global_sid_Enterprise_DCs;
665 3240 : user_info_dc->sids[user_info_dc->num_sids].attrs = SE_GROUP_DEFAULT_FLAGS;
666 3240 : user_info_dc->num_sids++;
667 : }
668 :
669 79225 : if ((info->acct_flags & (ACB_PARTIAL_SECRETS_ACCOUNT | ACB_WSTRUST)) ==
670 : (ACB_PARTIAL_SECRETS_ACCOUNT | ACB_WSTRUST)) {
671 : /* the DOMAIN_RID_ENTERPRISE_READONLY_DCS PAC */
672 668 : user_info_dc->sids = talloc_realloc(user_info_dc,
673 : user_info_dc->sids,
674 : struct auth_SidAttr,
675 : user_info_dc->num_sids+1);
676 668 : if (user_info_dc->sids == NULL) {
677 0 : TALLOC_FREE(user_info_dc);
678 0 : return NT_STATUS_NO_MEMORY;
679 : }
680 668 : user_info_dc->sids[user_info_dc->num_sids].sid = *domain_sid;
681 668 : sid_append_rid(&user_info_dc->sids[user_info_dc->num_sids].sid,
682 : DOMAIN_RID_ENTERPRISE_READONLY_DCS);
683 668 : user_info_dc->sids[user_info_dc->num_sids].attrs = SE_GROUP_DEFAULT_FLAGS;
684 668 : user_info_dc->num_sids++;
685 : }
686 :
687 79225 : info->user_flags = 0;
688 :
689 79225 : talloc_free(tmp_ctx);
690 79225 : *_user_info_dc = user_info_dc;
691 :
692 79225 : return NT_STATUS_OK;
693 : }
694 :
695 49688 : _PUBLIC_ NTSTATUS authsam_update_user_info_dc(TALLOC_CTX *mem_ctx,
696 : struct ldb_context *sam_ctx,
697 : struct auth_user_info_dc *user_info_dc)
698 : {
699 49688 : char *filter = NULL;
700 1672 : NTSTATUS status;
701 1672 : uint32_t i;
702 49688 : uint32_t n = 0;
703 :
704 : /*
705 : * This function exists to expand group memberships
706 : * in the local domain (forest), as the token
707 : * may come from a different domain.
708 : */
709 :
710 : /*
711 : * Filter out builtin groups from this token. We will search
712 : * for builtin groups later.
713 : */
714 49688 : status = authsam_domain_group_filter(mem_ctx, &filter);
715 49688 : if (!NT_STATUS_IS_OK(status)) {
716 0 : return status;
717 : }
718 :
719 : /*
720 : * We loop only over the existing number of
721 : * sids.
722 : */
723 49688 : n = user_info_dc->num_sids;
724 442030 : for (i = 0; i < n; i++) {
725 392342 : struct dom_sid *sid = &user_info_dc->sids[i].sid;
726 13811 : struct dom_sid_buf sid_buf;
727 13811 : char dn_str[sizeof(sid_buf.buf)*2];
728 392342 : DATA_BLOB dn_blob = data_blob_null;
729 :
730 392342 : snprintf(dn_str,
731 : sizeof(dn_str),
732 : "<SID=%s>",
733 : dom_sid_str_buf(sid, &sid_buf));
734 392342 : dn_blob = data_blob_string_const(dn_str);
735 :
736 : /*
737 : * We already have the SID in the token, so set
738 : * 'only childs' flag to true and add all
739 : * groups which match the filter.
740 : */
741 392342 : status = dsdb_expand_nested_groups(sam_ctx, &dn_blob,
742 : true, filter,
743 : user_info_dc,
744 : &user_info_dc->sids,
745 : &user_info_dc->num_sids);
746 392342 : if (!NT_STATUS_IS_OK(status)) {
747 0 : talloc_free(filter);
748 0 : return status;
749 : }
750 : }
751 :
752 49688 : talloc_free(filter);
753 49688 : return NT_STATUS_OK;
754 : }
755 :
756 : /*
757 : * Make a shallow copy of a talloc-allocated user_info_dc structure, holding a
758 : * reference to each of the original fields.
759 : */
760 30554 : NTSTATUS authsam_shallow_copy_user_info_dc(TALLOC_CTX *mem_ctx,
761 : const struct auth_user_info_dc *user_info_dc_in,
762 : struct auth_user_info_dc **user_info_dc_out)
763 : {
764 30554 : struct auth_user_info_dc *user_info_dc = NULL;
765 30554 : NTSTATUS status = NT_STATUS_OK;
766 :
767 30554 : if (user_info_dc_in == NULL) {
768 0 : return NT_STATUS_INVALID_PARAMETER;
769 : }
770 :
771 30554 : if (user_info_dc_out == NULL) {
772 0 : return NT_STATUS_INVALID_PARAMETER;
773 : }
774 :
775 30554 : user_info_dc = talloc_zero(mem_ctx, struct auth_user_info_dc);
776 30554 : if (user_info_dc == NULL) {
777 0 : status = NT_STATUS_NO_MEMORY;
778 0 : goto out;
779 : }
780 :
781 30554 : *user_info_dc = *user_info_dc_in;
782 :
783 30554 : if (user_info_dc->info != NULL) {
784 30554 : if (talloc_reference(user_info_dc, user_info_dc->info) == NULL) {
785 0 : status = NT_STATUS_NO_MEMORY;
786 0 : goto out;
787 : }
788 : }
789 :
790 30554 : if (user_info_dc->user_session_key.data != NULL) {
791 0 : if (talloc_reference(user_info_dc, user_info_dc->user_session_key.data) == NULL) {
792 0 : status = NT_STATUS_NO_MEMORY;
793 0 : goto out;
794 : }
795 : }
796 :
797 30554 : if (user_info_dc->lm_session_key.data != NULL) {
798 0 : if (talloc_reference(user_info_dc, user_info_dc->lm_session_key.data) == NULL) {
799 0 : status = NT_STATUS_NO_MEMORY;
800 0 : goto out;
801 : }
802 : }
803 :
804 30554 : if (user_info_dc->sids != NULL) {
805 : /*
806 : * Because we want to modify the SIDs in the user_info_dc
807 : * structure, adding various well-known SIDs such as Asserted
808 : * Identity or Claims Valid, make a copy of the SID array to
809 : * guard against modification of the original.
810 : *
811 : * It’s better not to make a reference, because anything that
812 : * tries to call talloc_realloc() on the original or the copy
813 : * will fail when called for any referenced talloc context.
814 : */
815 30554 : user_info_dc->sids = talloc_memdup(user_info_dc,
816 : user_info_dc->sids,
817 : talloc_get_size(user_info_dc->sids));
818 30554 : if (user_info_dc->sids == NULL) {
819 0 : status = NT_STATUS_NO_MEMORY;
820 0 : goto out;
821 : }
822 : }
823 :
824 30554 : *user_info_dc_out = user_info_dc;
825 30554 : user_info_dc = NULL;
826 :
827 30554 : out:
828 30554 : talloc_free(user_info_dc);
829 30554 : return status;
830 : }
831 :
832 105183 : NTSTATUS sam_get_results_principal(struct ldb_context *sam_ctx,
833 : TALLOC_CTX *mem_ctx, const char *principal,
834 : const char **attrs,
835 : const uint32_t dsdb_flags,
836 : struct ldb_dn **domain_dn,
837 : struct ldb_message **msg)
838 : {
839 3448 : struct ldb_dn *user_dn;
840 3448 : NTSTATUS nt_status;
841 105183 : TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
842 3448 : int ret;
843 :
844 105183 : if (!tmp_ctx) {
845 0 : return NT_STATUS_NO_MEMORY;
846 : }
847 :
848 105183 : nt_status = crack_user_principal_name(sam_ctx, tmp_ctx, principal,
849 : &user_dn, domain_dn);
850 105183 : if (!NT_STATUS_IS_OK(nt_status)) {
851 2784 : talloc_free(tmp_ctx);
852 2784 : return nt_status;
853 : }
854 :
855 : /* pull the user attributes */
856 102399 : ret = dsdb_search_one(sam_ctx, tmp_ctx, msg, user_dn,
857 : LDB_SCOPE_BASE, attrs,
858 : dsdb_flags | DSDB_SEARCH_SHOW_EXTENDED_DN | DSDB_SEARCH_NO_GLOBAL_CATALOG,
859 : "(objectClass=*)");
860 102399 : if (ret != LDB_SUCCESS) {
861 0 : talloc_free(tmp_ctx);
862 0 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
863 : }
864 102399 : talloc_steal(mem_ctx, *msg);
865 102399 : talloc_steal(mem_ctx, *domain_dn);
866 102399 : talloc_free(tmp_ctx);
867 :
868 102399 : return NT_STATUS_OK;
869 : }
870 :
871 : /* Used in the gensec_gssapi and gensec_krb5 server-side code, where the PAC isn't available, and for tokenGroups in the DSDB stack.
872 :
873 : Supply either a principal or a DN
874 : */
875 471 : NTSTATUS authsam_get_user_info_dc_principal(TALLOC_CTX *mem_ctx,
876 : struct loadparm_context *lp_ctx,
877 : struct ldb_context *sam_ctx,
878 : const char *principal,
879 : struct ldb_dn *user_dn,
880 : struct auth_user_info_dc **user_info_dc)
881 : {
882 41 : NTSTATUS nt_status;
883 471 : DATA_BLOB user_sess_key = data_blob(NULL, 0);
884 471 : DATA_BLOB lm_sess_key = data_blob(NULL, 0);
885 :
886 41 : struct ldb_message *msg;
887 41 : struct ldb_dn *domain_dn;
888 :
889 471 : TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
890 471 : if (!tmp_ctx) {
891 0 : return NT_STATUS_NO_MEMORY;
892 : }
893 :
894 471 : if (principal) {
895 0 : nt_status = sam_get_results_principal(sam_ctx, tmp_ctx, principal,
896 : user_attrs, DSDB_SEARCH_UPDATE_MANAGED_PASSWORDS, &domain_dn, &msg);
897 0 : if (!NT_STATUS_IS_OK(nt_status)) {
898 0 : talloc_free(tmp_ctx);
899 0 : return nt_status;
900 : }
901 471 : } else if (user_dn) {
902 41 : struct dom_sid *user_sid, *domain_sid;
903 41 : int ret;
904 : /* pull the user attributes */
905 471 : ret = dsdb_search_one(sam_ctx, tmp_ctx, &msg, user_dn,
906 : LDB_SCOPE_BASE, user_attrs,
907 : DSDB_SEARCH_SHOW_EXTENDED_DN | DSDB_SEARCH_NO_GLOBAL_CATALOG | DSDB_SEARCH_UPDATE_MANAGED_PASSWORDS,
908 : "(objectClass=*)");
909 471 : if (ret == LDB_ERR_NO_SUCH_OBJECT) {
910 0 : talloc_free(tmp_ctx);
911 0 : return NT_STATUS_NO_SUCH_USER;
912 471 : } else if (ret != LDB_SUCCESS) {
913 0 : talloc_free(tmp_ctx);
914 0 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
915 : }
916 :
917 471 : user_sid = samdb_result_dom_sid(msg, msg, "objectSid");
918 :
919 471 : nt_status = dom_sid_split_rid(tmp_ctx, user_sid, &domain_sid, NULL);
920 471 : if (!NT_STATUS_IS_OK(nt_status)) {
921 0 : talloc_free(tmp_ctx);
922 0 : return nt_status;
923 : }
924 :
925 471 : domain_dn = samdb_search_dn(sam_ctx, mem_ctx, NULL,
926 : "(&(objectSid=%s)(objectClass=domain))",
927 : ldap_encode_ndr_dom_sid(tmp_ctx, domain_sid));
928 471 : if (!domain_dn) {
929 0 : struct dom_sid_buf buf;
930 0 : DEBUG(3, ("authsam_get_user_info_dc_principal: Failed to find domain with: SID %s\n",
931 : dom_sid_str_buf(domain_sid, &buf)));
932 0 : talloc_free(tmp_ctx);
933 0 : return NT_STATUS_NO_SUCH_USER;
934 : }
935 :
936 : } else {
937 0 : talloc_free(tmp_ctx);
938 0 : return NT_STATUS_INVALID_PARAMETER;
939 : }
940 :
941 471 : nt_status = authsam_make_user_info_dc(tmp_ctx, sam_ctx,
942 : lpcfg_netbios_name(lp_ctx),
943 : lpcfg_sam_name(lp_ctx),
944 : lpcfg_sam_dnsname(lp_ctx),
945 : domain_dn,
946 : msg,
947 : user_sess_key, lm_sess_key,
948 : user_info_dc);
949 471 : if (!NT_STATUS_IS_OK(nt_status)) {
950 0 : talloc_free(tmp_ctx);
951 0 : return nt_status;
952 : }
953 :
954 471 : talloc_steal(mem_ctx, *user_info_dc);
955 471 : talloc_free(tmp_ctx);
956 :
957 471 : return NT_STATUS_OK;
958 : }
959 :
960 : /*
961 : * Returns the details for the Password Settings Object (PSO), if one applies
962 : * the user.
963 : */
964 3598 : static int authsam_get_user_pso(struct ldb_context *sam_ctx,
965 : TALLOC_CTX *mem_ctx,
966 : struct ldb_message *user_msg,
967 : struct ldb_message **pso_msg)
968 : {
969 3598 : const char *attrs[] = { "msDS-LockoutThreshold",
970 : "msDS-LockoutObservationWindow",
971 : NULL };
972 3598 : struct ldb_dn *pso_dn = NULL;
973 3598 : struct ldb_result *res = NULL;
974 13 : int ret;
975 :
976 : /* check if the user has a PSO that applies to it */
977 3598 : pso_dn = ldb_msg_find_attr_as_dn(sam_ctx, mem_ctx, user_msg,
978 : "msDS-ResultantPSO");
979 :
980 3598 : if (pso_dn != NULL) {
981 26 : ret = dsdb_search_dn(sam_ctx, mem_ctx, &res, pso_dn, attrs, 0);
982 26 : if (ret != LDB_SUCCESS) {
983 0 : return ret;
984 : }
985 :
986 25 : *pso_msg = res->msgs[0];
987 : }
988 :
989 3585 : return LDB_SUCCESS;
990 : }
991 :
992 : /*
993 : * Re-read the bad password and successful logon data for a user.
994 : *
995 : * The DN in the passed user record should contain the "objectGUID" in case the
996 : * object DN has changed.
997 : */
998 41714 : NTSTATUS authsam_reread_user_logon_data(
999 : struct ldb_context *sam_ctx,
1000 : TALLOC_CTX *mem_ctx,
1001 : const struct ldb_message *user_msg,
1002 : struct ldb_message **current)
1003 : {
1004 41714 : const struct ldb_val *v = NULL;
1005 41714 : struct ldb_result *res = NULL;
1006 41714 : uint16_t acct_flags = 0;
1007 41714 : const char *attr_name = "msDS-User-Account-Control-Computed";
1008 :
1009 1211 : int ret;
1010 :
1011 : /*
1012 : * Re-read the account details, using the GUID in case the DN
1013 : * is being changed (this is automatic in LDB because the
1014 : * original search also used DSDB_SEARCH_SHOW_EXTENDED_DN)
1015 : *
1016 : * We re read all the attributes in user_attrs, rather than using a
1017 : * subset to ensure that we can reuse existing validation code.
1018 : */
1019 42925 : ret = dsdb_search_dn(sam_ctx,
1020 : mem_ctx,
1021 : &res,
1022 41714 : user_msg->dn,
1023 : user_attrs,
1024 : DSDB_SEARCH_SHOW_EXTENDED_DN | DSDB_SEARCH_UPDATE_MANAGED_PASSWORDS);
1025 41714 : if (ret != LDB_SUCCESS) {
1026 4 : DBG_ERR("Unable to re-read account control data for %s\n",
1027 : ldb_dn_get_linearized(user_msg->dn));
1028 4 : return NT_STATUS_INTERNAL_ERROR;
1029 : }
1030 :
1031 : /*
1032 : * Ensure the account has not been locked out by another request
1033 : */
1034 41710 : v = ldb_msg_find_ldb_val(res->msgs[0], attr_name);
1035 41710 : if (v == NULL || v->data == NULL) {
1036 1 : DBG_ERR("No %s attribute for %s\n",
1037 : attr_name,
1038 : ldb_dn_get_linearized(user_msg->dn));
1039 1 : TALLOC_FREE(res);
1040 1 : return NT_STATUS_INTERNAL_ERROR;
1041 : }
1042 41709 : acct_flags = samdb_result_acct_flags(res->msgs[0], attr_name);
1043 41709 : if (acct_flags & ACB_AUTOLOCK) {
1044 5 : DBG_WARNING(
1045 : "Account for user %s was locked out.\n",
1046 : ldb_dn_get_linearized(user_msg->dn));
1047 5 : TALLOC_FREE(res);
1048 5 : return NT_STATUS_ACCOUNT_LOCKED_OUT;
1049 : }
1050 41704 : *current = talloc_steal(mem_ctx, res->msgs[0]);
1051 41704 : TALLOC_FREE(res);
1052 41704 : return NT_STATUS_OK;
1053 : }
1054 :
1055 106324 : static struct db_context *authsam_get_bad_password_db(
1056 : TALLOC_CTX *mem_ctx,
1057 : struct ldb_context *sam_ctx)
1058 : {
1059 106324 : struct loadparm_context *lp_ctx = NULL;
1060 106324 : const char *db_name = "bad_password";
1061 106324 : struct db_context *db_ctx = NULL;
1062 :
1063 106324 : lp_ctx = ldb_get_opaque(sam_ctx, "loadparm");
1064 106324 : if (lp_ctx == NULL) {
1065 1 : DBG_ERR("Unable to get loadparm_context\n");
1066 1 : return NULL;
1067 : }
1068 :
1069 106323 : db_ctx = cluster_db_tmp_open(mem_ctx, lp_ctx, db_name, TDB_DEFAULT);
1070 106323 : if (db_ctx == NULL) {
1071 4 : DBG_ERR("Unable to open bad password attempts database\n");
1072 4 : return NULL;
1073 : }
1074 101110 : return db_ctx;
1075 : }
1076 :
1077 106319 : static NTSTATUS get_object_sid_as_tdb_data(
1078 : TALLOC_CTX *mem_ctx,
1079 : const struct ldb_message *msg,
1080 : struct dom_sid_buf *buf,
1081 : TDB_DATA *key)
1082 : {
1083 106319 : struct dom_sid *objectsid = NULL;
1084 :
1085 : /*
1086 : * Convert the objectSID to a human readable form to
1087 : * make debugging easier
1088 : */
1089 106319 : objectsid = samdb_result_dom_sid(mem_ctx, msg, "objectSID");
1090 106319 : if (objectsid == NULL) {
1091 3 : DBG_ERR("Unable to extract objectSID\n");
1092 3 : return NT_STATUS_INTERNAL_ERROR;
1093 : }
1094 106316 : dom_sid_str_buf(objectsid, buf);
1095 106316 : key->dptr = (unsigned char *)buf->buf;
1096 106316 : key->dsize = strlen(buf->buf);
1097 :
1098 106316 : talloc_free(objectsid);
1099 :
1100 106316 : return NT_STATUS_OK;
1101 : }
1102 :
1103 : /*
1104 : * Add the users objectSID to the bad password attempt database
1105 : * to indicate that last authentication failed due to a bad password
1106 : */
1107 594 : static NTSTATUS authsam_set_bad_password_indicator(
1108 : struct ldb_context *sam_ctx,
1109 : TALLOC_CTX *mem_ctx,
1110 : const struct ldb_message *msg)
1111 : {
1112 594 : NTSTATUS status = NT_STATUS_OK;
1113 4 : struct dom_sid_buf buf;
1114 594 : TDB_DATA key = {0};
1115 594 : TDB_DATA value = {0};
1116 594 : struct db_context *db = NULL;
1117 :
1118 594 : TALLOC_CTX *ctx = talloc_new(mem_ctx);
1119 594 : if (ctx == NULL) {
1120 0 : return NT_STATUS_NO_MEMORY;
1121 : }
1122 :
1123 594 : db = authsam_get_bad_password_db(ctx, sam_ctx);
1124 594 : if (db == NULL) {
1125 1 : status = NT_STATUS_INTERNAL_ERROR;
1126 1 : goto exit;
1127 : }
1128 :
1129 593 : status = get_object_sid_as_tdb_data(ctx, msg, &buf, &key);
1130 593 : if (!NT_STATUS_IS_OK(status)) {
1131 1 : goto exit;
1132 : }
1133 :
1134 592 : status = dbwrap_store(db, key, value, 0);
1135 592 : if (!NT_STATUS_IS_OK(status)) {
1136 1 : DBG_ERR("Unable to store bad password indicator\n");
1137 : }
1138 591 : exit:
1139 594 : talloc_free(ctx);
1140 594 : return status;
1141 : }
1142 :
1143 : /*
1144 : * see if the users objectSID is in the bad password attempt database
1145 : */
1146 52868 : static NTSTATUS authsam_check_bad_password_indicator(
1147 : struct ldb_context *sam_ctx,
1148 : TALLOC_CTX *mem_ctx,
1149 : bool *exists,
1150 : const struct ldb_message *msg)
1151 : {
1152 52868 : NTSTATUS status = NT_STATUS_OK;
1153 2608 : struct dom_sid_buf buf;
1154 52868 : TDB_DATA key = {0};
1155 52868 : struct db_context *db = NULL;
1156 :
1157 52868 : TALLOC_CTX *ctx = talloc_new(mem_ctx);
1158 52868 : if (ctx == NULL) {
1159 0 : return NT_STATUS_NO_MEMORY;
1160 : }
1161 :
1162 52868 : db = authsam_get_bad_password_db(ctx, sam_ctx);
1163 52868 : if (db == NULL) {
1164 1 : status = NT_STATUS_INTERNAL_ERROR;
1165 1 : goto exit;
1166 : }
1167 :
1168 52867 : status = get_object_sid_as_tdb_data(ctx, msg, &buf, &key);
1169 52867 : if (!NT_STATUS_IS_OK(status)) {
1170 1 : goto exit;
1171 : }
1172 :
1173 52866 : *exists = dbwrap_exists(db, key);
1174 52868 : exit:
1175 52868 : talloc_free(ctx);
1176 52868 : return status;
1177 : }
1178 :
1179 : /*
1180 : * Remove the users objectSID to the bad password attempt database
1181 : * to indicate that last authentication succeeded.
1182 : */
1183 52860 : static NTSTATUS authsam_clear_bad_password_indicator(
1184 : struct ldb_context *sam_ctx,
1185 : TALLOC_CTX *mem_ctx,
1186 : const struct ldb_message *msg)
1187 : {
1188 52860 : NTSTATUS status = NT_STATUS_OK;
1189 2600 : struct dom_sid_buf buf;
1190 52860 : TDB_DATA key = {0};
1191 52860 : struct db_context *db = NULL;
1192 :
1193 52860 : TALLOC_CTX *ctx = talloc_new(mem_ctx);
1194 52860 : if (ctx == NULL) {
1195 0 : return NT_STATUS_NO_MEMORY;
1196 : }
1197 :
1198 52860 : db = authsam_get_bad_password_db(ctx, sam_ctx);
1199 52860 : if (db == NULL) {
1200 1 : status = NT_STATUS_INTERNAL_ERROR;
1201 1 : goto exit;
1202 : }
1203 :
1204 52859 : status = get_object_sid_as_tdb_data(ctx, msg, &buf, &key);
1205 52859 : if (!NT_STATUS_IS_OK(status)) {
1206 1 : goto exit;
1207 : }
1208 :
1209 52858 : status = dbwrap_delete(db, key);
1210 52858 : if (NT_STATUS_EQUAL(NT_STATUS_NOT_FOUND, status)) {
1211 : /*
1212 : * Ok there was no bad password indicator this is expected
1213 : */
1214 52498 : status = NT_STATUS_OK;
1215 : }
1216 52858 : if (NT_STATUS_IS_ERR(status)) {
1217 1 : DBG_ERR("Unable to delete bad password indicator, %s %s\n",
1218 : nt_errstr(status),
1219 : get_friendly_nt_error_msg(status));
1220 : }
1221 52857 : exit:
1222 52860 : talloc_free(ctx);
1223 52860 : return status;
1224 : }
1225 :
1226 3599 : NTSTATUS authsam_update_bad_pwd_count(struct ldb_context *sam_ctx,
1227 : struct ldb_message *msg,
1228 : struct ldb_dn *domain_dn)
1229 : {
1230 3599 : const char *attrs[] = { "lockoutThreshold",
1231 : "lockOutObservationWindow",
1232 : "lockoutDuration",
1233 : "pwdProperties",
1234 : NULL };
1235 14 : int ret;
1236 14 : NTSTATUS status;
1237 14 : struct ldb_result *domain_res;
1238 3599 : struct ldb_message *msg_mod = NULL;
1239 3599 : struct ldb_message *current = NULL;
1240 3599 : struct ldb_message *pso_msg = NULL;
1241 3599 : bool txn_active = false;
1242 14 : TALLOC_CTX *mem_ctx;
1243 :
1244 3599 : mem_ctx = talloc_new(msg);
1245 3599 : if (mem_ctx == NULL) {
1246 0 : return NT_STATUS_NO_MEMORY;
1247 : }
1248 :
1249 3599 : ret = dsdb_search_dn(sam_ctx, mem_ctx, &domain_res, domain_dn, attrs, 0);
1250 3599 : if (ret != LDB_SUCCESS) {
1251 1 : TALLOC_FREE(mem_ctx);
1252 1 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
1253 : }
1254 :
1255 3598 : ret = authsam_get_user_pso(sam_ctx, mem_ctx, msg, &pso_msg);
1256 3598 : if (ret != LDB_SUCCESS) {
1257 :
1258 : /*
1259 : * fallback to using the domain defaults so that we still
1260 : * record the bad password attempt
1261 : */
1262 1 : DBG_ERR("Error (%d) checking PSO for %s\n",
1263 : ret, ldb_dn_get_linearized(msg->dn));
1264 : }
1265 :
1266 : /*
1267 : * To ensure that the bad password count is updated atomically,
1268 : * we need to:
1269 : * begin a transaction
1270 : * re-read the account details,
1271 : * using the <GUID= part of the DN
1272 : * update the bad password count
1273 : * commit the transaction.
1274 : */
1275 :
1276 : /*
1277 : * Start a new transaction
1278 : */
1279 3598 : ret = ldb_transaction_start(sam_ctx);
1280 3598 : if (ret != LDB_SUCCESS) {
1281 1 : status = NT_STATUS_INTERNAL_ERROR;
1282 1 : goto error;
1283 : }
1284 3597 : txn_active = true;
1285 :
1286 : /*
1287 : * Re-read the account details, using the GUID in case the DN
1288 : * is being changed.
1289 : */
1290 3597 : status = authsam_reread_user_logon_data(
1291 : sam_ctx, mem_ctx, msg, ¤t);
1292 3597 : if (!NT_STATUS_IS_OK(status)) {
1293 : /* The re-read can return account locked out, as well
1294 : * as an internal error
1295 : */
1296 6 : if (NT_STATUS_EQUAL(status, NT_STATUS_ACCOUNT_LOCKED_OUT)) {
1297 : /*
1298 : * For NT_STATUS_ACCOUNT_LOCKED_OUT we want to commit
1299 : * the transaction. Again to avoid cluttering the
1300 : * audit logs with spurious errors
1301 : */
1302 4 : goto exit;
1303 : }
1304 2 : goto error;
1305 : }
1306 :
1307 : /*
1308 : * Update the bad password count and if required lock the account
1309 : */
1310 3600 : status = dsdb_update_bad_pwd_count(
1311 : mem_ctx,
1312 : sam_ctx,
1313 : current,
1314 3591 : domain_res->msgs[0],
1315 : pso_msg,
1316 : &msg_mod);
1317 3591 : if (!NT_STATUS_IS_OK(status)) {
1318 1 : status = NT_STATUS_INTERNAL_ERROR;
1319 1 : goto error;
1320 : }
1321 :
1322 : /*
1323 : * Write the data back to disk if required.
1324 : */
1325 3590 : if (msg_mod != NULL) {
1326 4 : struct ldb_request *req;
1327 :
1328 594 : ret = ldb_build_mod_req(&req, sam_ctx, sam_ctx,
1329 : msg_mod,
1330 : NULL,
1331 : NULL,
1332 : ldb_op_default_callback,
1333 : NULL);
1334 594 : if (ret != LDB_SUCCESS) {
1335 1 : TALLOC_FREE(msg_mod);
1336 1 : status = NT_STATUS_INTERNAL_ERROR;
1337 1 : goto error;
1338 : }
1339 :
1340 593 : ret = ldb_request_add_control(req,
1341 : DSDB_CONTROL_FORCE_RODC_LOCAL_CHANGE,
1342 : false, NULL);
1343 593 : if (ret != LDB_SUCCESS) {
1344 1 : talloc_free(req);
1345 1 : status = NT_STATUS_INTERNAL_ERROR;
1346 1 : goto error;
1347 : }
1348 :
1349 : /*
1350 : * As we're in a transaction, make the ldb request directly
1351 : * to avoid the nested transaction that would result if we
1352 : * called dsdb_autotransaction_request
1353 : */
1354 592 : ret = ldb_request(sam_ctx, req);
1355 592 : if (ret == LDB_SUCCESS) {
1356 591 : ret = ldb_wait(req->handle, LDB_WAIT_ALL);
1357 : }
1358 592 : talloc_free(req);
1359 592 : if (ret != LDB_SUCCESS) {
1360 2 : status = NT_STATUS_INTERNAL_ERROR;
1361 2 : goto error;
1362 : }
1363 590 : status = authsam_set_bad_password_indicator(
1364 : sam_ctx, mem_ctx, msg);
1365 590 : if (!NT_STATUS_IS_OK(status)) {
1366 0 : goto error;
1367 : }
1368 : }
1369 : /*
1370 : * Note that we may not have updated the user record, but
1371 : * committing the transaction in that case is still the correct
1372 : * thing to do.
1373 : * If the transaction was cancelled, this would be logged by
1374 : * the dsdb audit log as a failure. When in fact it is expected
1375 : * behaviour.
1376 : */
1377 2996 : exit:
1378 3590 : TALLOC_FREE(mem_ctx);
1379 3590 : ret = ldb_transaction_commit(sam_ctx);
1380 3590 : if (ret != LDB_SUCCESS) {
1381 1 : DBG_ERR("Error (%d) %s, committing transaction,"
1382 : " while updating bad password count"
1383 : " for (%s)\n",
1384 : ret,
1385 : ldb_errstring(sam_ctx),
1386 : ldb_dn_get_linearized(msg->dn));
1387 1 : return NT_STATUS_INTERNAL_ERROR;
1388 : }
1389 3589 : return status;
1390 :
1391 8 : error:
1392 8 : DBG_ERR("Failed to update badPwdCount, badPasswordTime or "
1393 : "set lockoutTime on %s: %s\n",
1394 : ldb_dn_get_linearized(msg->dn),
1395 : ldb_errstring(sam_ctx) != NULL ?
1396 : ldb_errstring(sam_ctx) :nt_errstr(status));
1397 8 : if (txn_active) {
1398 7 : ret = ldb_transaction_cancel(sam_ctx);
1399 7 : if (ret != LDB_SUCCESS) {
1400 1 : DBG_ERR("Error rolling back transaction,"
1401 : " while updating bad password count"
1402 : " on %s: %s\n",
1403 : ldb_dn_get_linearized(msg->dn),
1404 : ldb_errstring(sam_ctx));
1405 : }
1406 : }
1407 8 : TALLOC_FREE(mem_ctx);
1408 8 : return status;
1409 :
1410 : }
1411 :
1412 : /*
1413 : * msDS-LogonTimeSyncInterval is an int32_t number of days.
1414 : *
1415 : * The docs say: "the initial update, after the domain functional
1416 : * level is raised to DS_BEHAVIOR_WIN2003 or higher, is calculated as
1417 : * 14 days minus a random percentage of 5 days", but we aren't doing
1418 : * that. The blogosphere seems to think that this randomised update
1419 : * happens every time, but [MS-ADA1] doesn't agree.
1420 : *
1421 : * Dochelp referred us to the following blog post:
1422 : * http://blogs.technet.com/b/askds/archive/2009/04/15/the-lastlogontimestamp-attribute-what-it-was-designed-for-and-how-it-works.aspx
1423 : *
1424 : * when msDS-LogonTimeSyncInterval is zero, the lastLogonTimestamp is
1425 : * not changed.
1426 : */
1427 :
1428 52249 : static NTSTATUS authsam_calculate_lastlogon_sync_interval(
1429 : struct ldb_context *sam_ctx,
1430 : TALLOC_CTX *ctx,
1431 : struct ldb_dn *domain_dn,
1432 : NTTIME *sync_interval_nt)
1433 : {
1434 2605 : static const char *attrs[] = { "msDS-LogonTimeSyncInterval",
1435 : NULL };
1436 2605 : int ret;
1437 52249 : struct ldb_result *domain_res = NULL;
1438 52249 : TALLOC_CTX *mem_ctx = NULL;
1439 2605 : uint32_t sync_interval;
1440 :
1441 52249 : mem_ctx = talloc_new(ctx);
1442 52249 : if (mem_ctx == NULL) {
1443 0 : return NT_STATUS_NO_MEMORY;
1444 : }
1445 :
1446 52249 : ret = dsdb_search_dn(sam_ctx, mem_ctx, &domain_res, domain_dn, attrs,
1447 : 0);
1448 52249 : if (ret != LDB_SUCCESS || domain_res->count != 1) {
1449 0 : TALLOC_FREE(mem_ctx);
1450 0 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
1451 : }
1452 :
1453 52249 : sync_interval = ldb_msg_find_attr_as_int(domain_res->msgs[0],
1454 : "msDS-LogonTimeSyncInterval",
1455 : 14);
1456 52249 : DEBUG(5, ("sync interval is %d\n", sync_interval));
1457 52249 : if (sync_interval >= 5){
1458 : /*
1459 : * Subtract "a random percentage of 5" days. Presumably this
1460 : * percentage is between 0 and 100, and modulus is accurate
1461 : * enough.
1462 : */
1463 50482 : uint32_t r = generate_random() % 6;
1464 50482 : sync_interval -= r;
1465 50482 : DBG_INFO("randomised sync interval is %d (-%d)\n", sync_interval, r);
1466 : }
1467 : /* In the case where sync_interval < 5 there is no randomisation */
1468 :
1469 : /*
1470 : * msDS-LogonTimeSyncInterval is an int32_t number of days,
1471 : * while lastLogonTimestamp (to be updated) is in the 64 bit
1472 : * 100ns NTTIME format so we must convert.
1473 : */
1474 52249 : *sync_interval_nt = sync_interval * 24LL * 3600LL * 10000000LL;
1475 52249 : TALLOC_FREE(mem_ctx);
1476 52249 : return NT_STATUS_OK;
1477 : }
1478 :
1479 :
1480 : /*
1481 : * We only set lastLogonTimestamp if the current value is older than
1482 : * now - msDS-LogonTimeSyncInterval days.
1483 : *
1484 : * lastLogonTimestamp is in the 64 bit 100ns NTTIME format
1485 : */
1486 89083 : static NTSTATUS authsam_update_lastlogon_timestamp(struct ldb_context *sam_ctx,
1487 : struct ldb_message *msg_mod,
1488 : struct ldb_dn *domain_dn,
1489 : NTTIME old_timestamp,
1490 : NTTIME now,
1491 : NTTIME sync_interval_nt)
1492 : {
1493 3786 : int ret;
1494 89083 : DEBUG(5, ("old timestamp is %lld, threshold %lld, diff %lld\n",
1495 : (long long int)old_timestamp,
1496 : (long long int)(now - sync_interval_nt),
1497 : (long long int)(old_timestamp - now + sync_interval_nt)));
1498 :
1499 89083 : if (sync_interval_nt == 0){
1500 : /*
1501 : * Setting msDS-LogonTimeSyncInterval to zero is how you ask
1502 : * that nothing happens here.
1503 : */
1504 3418 : return NT_STATUS_OK;
1505 : }
1506 85665 : if (old_timestamp > now){
1507 0 : DEBUG(0, ("lastLogonTimestamp is in the future! (%lld > %lld)\n",
1508 : (long long int)old_timestamp, (long long int)now));
1509 : /* then what? */
1510 :
1511 85665 : } else if (old_timestamp < now - sync_interval_nt){
1512 17273 : DEBUG(5, ("updating lastLogonTimestamp to %lld\n",
1513 : (long long int)now));
1514 :
1515 : /* The time has come to update lastLogonTimestamp */
1516 17273 : ret = samdb_msg_add_int64(sam_ctx, msg_mod, msg_mod,
1517 : "lastLogonTimestamp", now);
1518 :
1519 17273 : if (ret != LDB_SUCCESS) {
1520 0 : return NT_STATUS_NO_MEMORY;
1521 : }
1522 : }
1523 85665 : return NT_STATUS_OK;
1524 : }
1525 :
1526 : /****************************************************************************
1527 : Look for the specified user in the sam, return ldb result structures
1528 : ****************************************************************************/
1529 :
1530 30048 : NTSTATUS authsam_search_account(TALLOC_CTX *mem_ctx, struct ldb_context *sam_ctx,
1531 : const char *account_name,
1532 : struct ldb_dn *domain_dn,
1533 : struct ldb_message **ret_msg)
1534 : {
1535 1417 : int ret;
1536 30048 : char *account_name_encoded = NULL;
1537 :
1538 30048 : account_name_encoded = ldb_binary_encode_string(mem_ctx, account_name);
1539 30048 : if (account_name_encoded == NULL) {
1540 0 : return NT_STATUS_NO_MEMORY;
1541 : }
1542 :
1543 : /* pull the user attributes */
1544 30048 : ret = dsdb_search_one(sam_ctx, mem_ctx, ret_msg, domain_dn, LDB_SCOPE_SUBTREE,
1545 : user_attrs,
1546 : DSDB_SEARCH_SHOW_EXTENDED_DN | DSDB_SEARCH_UPDATE_MANAGED_PASSWORDS,
1547 : "(&(sAMAccountName=%s)(objectclass=user))",
1548 : account_name_encoded);
1549 30048 : if (ret == LDB_ERR_NO_SUCH_OBJECT) {
1550 1471 : DEBUG(3,("authsam_search_account: Couldn't find user [%s] in samdb, under %s\n",
1551 : account_name, ldb_dn_get_linearized(domain_dn)));
1552 1471 : return NT_STATUS_NO_SUCH_USER;
1553 : }
1554 28577 : if (ret != LDB_SUCCESS) {
1555 0 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
1556 : }
1557 :
1558 28577 : return NT_STATUS_OK;
1559 : }
1560 :
1561 :
1562 : /* Reset the badPwdCount to zero and update the lastLogon time. */
1563 52866 : NTSTATUS authsam_logon_success_accounting(struct ldb_context *sam_ctx,
1564 : const struct ldb_message *msg,
1565 : struct ldb_dn *domain_dn,
1566 : bool interactive_or_kerberos,
1567 : TALLOC_CTX *send_to_sam_mem_ctx,
1568 : struct netr_SendToSamBase **send_to_sam)
1569 : {
1570 2606 : int ret;
1571 2606 : NTSTATUS status;
1572 2606 : int badPwdCount;
1573 2606 : int dbBadPwdCount;
1574 2606 : int64_t lockoutTime;
1575 2606 : struct ldb_message *msg_mod;
1576 2606 : TALLOC_CTX *mem_ctx;
1577 2606 : struct timeval tv_now;
1578 2606 : NTTIME now;
1579 2606 : NTTIME lastLogonTimestamp;
1580 2606 : int64_t lockOutObservationWindow;
1581 52866 : NTTIME sync_interval_nt = 0;
1582 52866 : bool am_rodc = false;
1583 52866 : bool txn_active = false;
1584 52866 : bool need_db_reread = false;
1585 :
1586 52866 : mem_ctx = talloc_new(msg);
1587 52866 : if (mem_ctx == NULL) {
1588 0 : return NT_STATUS_NO_MEMORY;
1589 : }
1590 :
1591 : /*
1592 : * Any update of the last logon data, needs to be done inside a
1593 : * transaction.
1594 : * And the user data needs to be re-read, and the account re-checked
1595 : * for lockout.
1596 : *
1597 : * However we have long-running transactions like replication
1598 : * that could otherwise grind the system to a halt so we first
1599 : * determine if *this* account has seen a bad password,
1600 : * otherwise we only start a transaction if there was a need
1601 : * (because a change was to be made).
1602 : */
1603 :
1604 52866 : status = authsam_check_bad_password_indicator(
1605 : sam_ctx, mem_ctx, &need_db_reread, msg);
1606 52866 : if (!NT_STATUS_IS_OK(status)) {
1607 0 : TALLOC_FREE(mem_ctx);
1608 0 : return status;
1609 : }
1610 :
1611 52866 : if (interactive_or_kerberos == false) {
1612 : /*
1613 : * Avoid calculating this twice, it reads the PSO. A
1614 : * race on this is unimportant.
1615 : */
1616 1410 : lockOutObservationWindow
1617 22869 : = samdb_result_msds_LockoutObservationWindow(
1618 : sam_ctx, mem_ctx, domain_dn, msg);
1619 : }
1620 :
1621 52866 : ret = samdb_rodc(sam_ctx, &am_rodc);
1622 52866 : if (ret != LDB_SUCCESS) {
1623 1 : status = NT_STATUS_INTERNAL_ERROR;
1624 1 : goto error;
1625 : }
1626 :
1627 52865 : if (!am_rodc) {
1628 : /*
1629 : * Avoid reading the main domain DN twice. A race on
1630 : * this is unimportant.
1631 : */
1632 52249 : status = authsam_calculate_lastlogon_sync_interval(
1633 : sam_ctx, mem_ctx, domain_dn, &sync_interval_nt);
1634 :
1635 52249 : if (!NT_STATUS_IS_OK(status)) {
1636 0 : status = NT_STATUS_INTERNAL_ERROR;
1637 0 : goto error;
1638 : }
1639 : }
1640 :
1641 52865 : get_transaction:
1642 :
1643 90176 : if (need_db_reread) {
1644 37679 : struct ldb_message *current = NULL;
1645 :
1646 : /*
1647 : * Start a new transaction
1648 : */
1649 37679 : ret = ldb_transaction_start(sam_ctx);
1650 37679 : if (ret != LDB_SUCCESS) {
1651 1 : status = NT_STATUS_INTERNAL_ERROR;
1652 1 : goto error;
1653 : }
1654 :
1655 37678 : txn_active = true;
1656 :
1657 : /*
1658 : * Re-read the account details, using the GUID
1659 : * embedded in DN so this is safe against a race where
1660 : * it is being renamed.
1661 : */
1662 37678 : status = authsam_reread_user_logon_data(
1663 : sam_ctx, mem_ctx, msg, ¤t);
1664 37678 : if (!NT_STATUS_IS_OK(status)) {
1665 : /*
1666 : * The re-read can return account locked out, as well
1667 : * as an internal error
1668 : */
1669 1 : if (NT_STATUS_EQUAL(status, NT_STATUS_ACCOUNT_LOCKED_OUT)) {
1670 : /*
1671 : * For NT_STATUS_ACCOUNT_LOCKED_OUT we want to commit
1672 : * the transaction. Again to avoid cluttering the
1673 : * audit logs with spurious errors
1674 : */
1675 0 : goto exit;
1676 : }
1677 1 : goto error;
1678 : }
1679 37677 : msg = current;
1680 : }
1681 :
1682 90174 : lockoutTime = ldb_msg_find_attr_as_int64(msg, "lockoutTime", 0);
1683 90174 : dbBadPwdCount = ldb_msg_find_attr_as_int(msg, "badPwdCount", 0);
1684 90174 : tv_now = timeval_current();
1685 90174 : now = timeval_to_nttime(&tv_now);
1686 :
1687 90174 : if (interactive_or_kerberos) {
1688 57464 : badPwdCount = dbBadPwdCount;
1689 : } else {
1690 : /*
1691 : * We get lockOutObservationWindow above, before the
1692 : * transaction
1693 : */
1694 30333 : badPwdCount = dsdb_effective_badPwdCount(
1695 : msg, lockOutObservationWindow, now);
1696 : }
1697 93962 : lastLogonTimestamp =
1698 90174 : ldb_msg_find_attr_as_int64(msg, "lastLogonTimestamp", 0);
1699 :
1700 90174 : DEBUG(5, ("lastLogonTimestamp is %lld\n",
1701 : (long long int)lastLogonTimestamp));
1702 :
1703 90174 : msg_mod = ldb_msg_new(mem_ctx);
1704 90174 : if (msg_mod == NULL) {
1705 1 : status = NT_STATUS_NO_MEMORY;
1706 1 : goto error;
1707 : }
1708 :
1709 : /*
1710 : * By using the DN from msg->dn directly, we allow LDB to
1711 : * prefer the embedded GUID form, so this is actually quite
1712 : * safe even in the case where DN has been changed
1713 : */
1714 90173 : msg_mod->dn = msg->dn;
1715 :
1716 90173 : if (lockoutTime != 0) {
1717 : /*
1718 : * This implies "badPwdCount" = 0, see samldb_lockout_time()
1719 : */
1720 44 : ret = samdb_msg_add_int(sam_ctx, msg_mod, msg_mod, "lockoutTime", 0);
1721 44 : if (ret != LDB_SUCCESS) {
1722 0 : status = NT_STATUS_NO_MEMORY;
1723 0 : goto error;
1724 : }
1725 90129 : } else if (badPwdCount != 0) {
1726 327 : ret = samdb_msg_add_int(sam_ctx, msg_mod, msg_mod, "badPwdCount", 0);
1727 327 : if (ret != LDB_SUCCESS) {
1728 0 : status = NT_STATUS_NO_MEMORY;
1729 0 : goto error;
1730 : }
1731 : }
1732 :
1733 90173 : if (interactive_or_kerberos ||
1734 1614 : (badPwdCount != 0 && lockoutTime == 0)) {
1735 60043 : ret = samdb_msg_add_int64(sam_ctx, msg_mod, msg_mod,
1736 : "lastLogon", now);
1737 60043 : if (ret != LDB_SUCCESS) {
1738 1 : status = NT_STATUS_NO_MEMORY;
1739 1 : goto error;
1740 : }
1741 : }
1742 :
1743 90172 : if (interactive_or_kerberos) {
1744 2375 : int logonCount;
1745 :
1746 59839 : logonCount = ldb_msg_find_attr_as_int(msg, "logonCount", 0);
1747 :
1748 59839 : logonCount += 1;
1749 :
1750 59839 : ret = samdb_msg_add_int(sam_ctx, msg_mod, msg_mod,
1751 : "logonCount", logonCount);
1752 59839 : if (ret != LDB_SUCCESS) {
1753 0 : status = NT_STATUS_NO_MEMORY;
1754 0 : goto error;
1755 : }
1756 : } else {
1757 : /* Set an unset logonCount to 0 on first successful login */
1758 30333 : if (ldb_msg_find_ldb_val(msg, "logonCount") == NULL) {
1759 34 : ret = samdb_msg_add_int(sam_ctx, msg_mod, msg_mod,
1760 : "logonCount", 0);
1761 34 : if (ret != LDB_SUCCESS) {
1762 0 : TALLOC_FREE(mem_ctx);
1763 0 : return NT_STATUS_NO_MEMORY;
1764 : }
1765 : }
1766 : }
1767 :
1768 90172 : if (!am_rodc) {
1769 89083 : status = authsam_update_lastlogon_timestamp(
1770 : sam_ctx,
1771 : msg_mod,
1772 : domain_dn,
1773 : lastLogonTimestamp,
1774 : now,
1775 : sync_interval_nt);
1776 89083 : if (!NT_STATUS_IS_OK(status)) {
1777 0 : status = NT_STATUS_NO_MEMORY;
1778 0 : goto error;
1779 : }
1780 : } else {
1781 : /* Perform the (async) SendToSAM calls for MS-SAMS */
1782 1089 : if (dbBadPwdCount != 0 && send_to_sam != NULL) {
1783 0 : struct netr_SendToSamBase *base_msg;
1784 17 : struct GUID guid = samdb_result_guid(msg, "objectGUID");
1785 :
1786 17 : base_msg = talloc_zero(send_to_sam_mem_ctx,
1787 : struct netr_SendToSamBase);
1788 17 : if (base_msg == NULL) {
1789 0 : status = NT_STATUS_NO_MEMORY;
1790 0 : goto error;
1791 : }
1792 :
1793 17 : base_msg->message_type = SendToSamResetBadPasswordCount;
1794 17 : base_msg->message_size = 16;
1795 17 : base_msg->message.reset_bad_password.guid = guid;
1796 17 : *send_to_sam = base_msg;
1797 : }
1798 : }
1799 :
1800 90172 : if (msg_mod->num_elements > 0) {
1801 2377 : unsigned int i;
1802 2377 : struct ldb_request *req;
1803 :
1804 : /*
1805 : * If it turns out we are going to update the DB, go
1806 : * back to the start, get a transaction and the
1807 : * current DB state and try again
1808 : */
1809 74986 : if (txn_active == false) {
1810 37311 : need_db_reread = true;
1811 37311 : goto get_transaction;
1812 : }
1813 :
1814 : /* mark all the message elements as LDB_FLAG_MOD_REPLACE */
1815 107013 : for (i=0;i<msg_mod->num_elements;i++) {
1816 69338 : msg_mod->elements[i].flags = LDB_FLAG_MOD_REPLACE;
1817 : }
1818 :
1819 37675 : ret = ldb_build_mod_req(&req, sam_ctx, sam_ctx,
1820 : msg_mod,
1821 : NULL,
1822 : NULL,
1823 : ldb_op_default_callback,
1824 : NULL);
1825 37675 : if (ret != LDB_SUCCESS) {
1826 1 : status = NT_STATUS_INTERNAL_ERROR;
1827 1 : goto error;
1828 : }
1829 :
1830 37674 : ret = ldb_request_add_control(req,
1831 : DSDB_CONTROL_FORCE_RODC_LOCAL_CHANGE,
1832 : false, NULL);
1833 37674 : if (ret != LDB_SUCCESS) {
1834 1 : TALLOC_FREE(req);
1835 1 : status = NT_STATUS_INTERNAL_ERROR;
1836 1 : goto error;
1837 : }
1838 : /*
1839 : * As we're in a transaction, make the ldb request directly
1840 : * to avoid the nested transaction that would result if we
1841 : * called dsdb_autotransaction_request
1842 : */
1843 37673 : ret = ldb_request(sam_ctx, req);
1844 37673 : if (ret == LDB_SUCCESS) {
1845 37672 : ret = ldb_wait(req->handle, LDB_WAIT_ALL);
1846 : }
1847 37673 : TALLOC_FREE(req);
1848 37673 : if (ret != LDB_SUCCESS) {
1849 3 : status = NT_STATUS_INTERNAL_ERROR;
1850 3 : goto error;
1851 : }
1852 : }
1853 52856 : status = authsam_clear_bad_password_indicator(sam_ctx, mem_ctx, msg);
1854 52856 : if (!NT_STATUS_IS_OK(status)) {
1855 0 : goto error;
1856 : }
1857 :
1858 : /*
1859 : * Note that we may not have updated the user record, but
1860 : * committing the transaction in that case is still the correct
1861 : * thing to do.
1862 : * If the transaction was cancelled, this would be logged by
1863 : * the dsdb audit log as a failure. When in fact it is expected
1864 : * behaviour.
1865 : *
1866 : * Thankfully both TDB and LMDB seem to optimise for the empty
1867 : * transaction case
1868 : */
1869 52856 : exit:
1870 52856 : TALLOC_FREE(mem_ctx);
1871 :
1872 52856 : if (txn_active == false) {
1873 15186 : return status;
1874 : }
1875 :
1876 37670 : ret = ldb_transaction_commit(sam_ctx);
1877 37670 : if (ret != LDB_SUCCESS) {
1878 1 : DBG_ERR("Error (%d) %s, committing transaction,"
1879 : " while updating successful logon accounting"
1880 : " for (%s)\n",
1881 : ret,
1882 : ldb_errstring(sam_ctx),
1883 : ldb_dn_get_linearized(msg->dn));
1884 1 : return NT_STATUS_INTERNAL_ERROR;
1885 : }
1886 37669 : return status;
1887 :
1888 10 : error:
1889 10 : DBG_ERR("Failed to update badPwdCount, badPasswordTime or "
1890 : "set lockoutTime on %s: %s\n",
1891 : ldb_dn_get_linearized(msg->dn),
1892 : ldb_errstring(sam_ctx) != NULL ?
1893 : ldb_errstring(sam_ctx) :nt_errstr(status));
1894 10 : if (txn_active) {
1895 8 : ret = ldb_transaction_cancel(sam_ctx);
1896 8 : if (ret != LDB_SUCCESS) {
1897 1 : DBG_ERR("Error rolling back transaction,"
1898 : " while updating bad password count"
1899 : " on %s: %s\n",
1900 : ldb_dn_get_linearized(msg->dn),
1901 : ldb_errstring(sam_ctx));
1902 : }
1903 : }
1904 10 : TALLOC_FREE(mem_ctx);
1905 10 : return status;
1906 : }
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