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 72578 : 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 3158 : const struct ldb_val *hours;
149 3158 : struct tm *utctime;
150 3158 : time_t lasttime;
151 3158 : const char *asct;
152 3158 : uint8_t bitmask, bitpos;
153 :
154 72578 : hours = ldb_msg_find_ldb_val(msg, "logonHours");
155 72578 : if (!hours) {
156 72571 : DEBUG(5,("logon_hours_ok: No hours restrictions for user %s\n", name_for_logs));
157 72571 : 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 73237 : _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 3158 : uint16_t acct_flags;
216 3158 : const char *workstation_list;
217 3158 : NTTIME acct_expiry;
218 3158 : NTTIME must_change_time;
219 73237 : struct timeval tv_now = timeval_current();
220 73237 : NTTIME now = timeval_to_nttime(&tv_now);
221 :
222 73237 : DEBUG(4,("authsam_account_ok: Checking SMB password for user %s\n", name_for_logs));
223 :
224 73237 : acct_flags = samdb_result_acct_flags(msg, "msDS-User-Account-Control-Computed");
225 :
226 73237 : 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 73237 : must_change_time = samdb_result_nttime(msg,
231 : "msDS-UserPasswordExpiryTimeComputed", 0);
232 :
233 73237 : workstation_list = ldb_msg_find_attr_as_string(msg, "userWorkstations", NULL);
234 :
235 : /* Quit if the account was disabled. */
236 73237 : 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 72961 : 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 72935 : 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 72935 : 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 72921 : 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 72921 : 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 72578 : if (!logon_hours_ok(msg, name_for_logs)) {
295 4 : return NT_STATUS_INVALID_LOGON_HOURS;
296 : }
297 :
298 72574 : if (!allow_domain_trust) {
299 23350 : 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 72570 : 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 72570 : 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 72228 : return NT_STATUS_OK;
320 : }
321 :
322 129780 : static NTSTATUS authsam_domain_group_filter(TALLOC_CTX *mem_ctx,
323 : char **_filter)
324 : {
325 129780 : char *filter = NULL;
326 :
327 129780 : *_filter = NULL;
328 :
329 129780 : filter = talloc_strdup(mem_ctx, "(&(objectClass=group)");
330 129780 : if (filter == NULL) {
331 0 : return NT_STATUS_NO_MEMORY;
332 : }
333 :
334 : /*
335 : * Skip all builtin groups, they're added later.
336 : */
337 129780 : talloc_asprintf_addbuf(&filter,
338 : "(!(groupType:"LDB_OID_COMPARATOR_AND":=%u))",
339 : GROUP_TYPE_BUILTIN_LOCAL_GROUP);
340 129780 : if (filter == NULL) {
341 0 : return NT_STATUS_NO_MEMORY;
342 : }
343 : /*
344 : * Only include security groups.
345 : */
346 129780 : talloc_asprintf_addbuf(&filter,
347 : "(groupType:"LDB_OID_COMPARATOR_AND":=%u))",
348 : GROUP_TYPE_SECURITY_ENABLED);
349 129780 : if (filter == NULL) {
350 0 : return NT_STATUS_NO_MEMORY;
351 : }
352 :
353 129780 : *_filter = filter;
354 129780 : return NT_STATUS_OK;
355 : }
356 :
357 80099 : _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 3200 : NTSTATUS status;
369 3200 : int ret;
370 3200 : struct auth_user_info_dc *user_info_dc;
371 3200 : struct auth_user_info *info;
372 80099 : const char *str = NULL;
373 80099 : char *filter = NULL;
374 : /* SIDs for the account and his primary group */
375 3200 : struct dom_sid *account_sid;
376 3200 : struct dom_sid_buf buf;
377 80099 : const char *primary_group_dn_str = NULL;
378 3200 : DATA_BLOB primary_group_blob;
379 80099 : struct ldb_dn *primary_group_dn = NULL;
380 80099 : struct ldb_message *primary_group_msg = NULL;
381 3200 : unsigned primary_group_type;
382 : /* SID structures for the expanded group memberships */
383 80099 : struct auth_SidAttr *sids = NULL;
384 80099 : uint32_t num_sids = 0;
385 3200 : unsigned int i;
386 3200 : struct dom_sid *domain_sid;
387 3200 : TALLOC_CTX *tmp_ctx;
388 3200 : struct ldb_message_element *el;
389 3200 : static const char * const group_type_attrs[] = { "groupType", NULL };
390 :
391 80099 : if (msg == NULL) {
392 0 : return NT_STATUS_INVALID_PARAMETER;
393 : }
394 :
395 80099 : user_info_dc = talloc_zero(mem_ctx, struct auth_user_info_dc);
396 80099 : NT_STATUS_HAVE_NO_MEMORY(user_info_dc);
397 :
398 80099 : tmp_ctx = talloc_new(user_info_dc);
399 80099 : 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 80099 : sids = talloc_zero_array(user_info_dc, struct auth_SidAttr, 3);
410 80099 : if (sids == NULL) {
411 0 : TALLOC_FREE(user_info_dc);
412 0 : return NT_STATUS_NO_MEMORY;
413 : }
414 :
415 80099 : num_sids = 2;
416 :
417 80099 : account_sid = samdb_result_dom_sid(tmp_ctx, msg, "objectSid");
418 80099 : if (account_sid == NULL) {
419 0 : TALLOC_FREE(user_info_dc);
420 0 : return NT_STATUS_NO_MEMORY;
421 : }
422 :
423 80099 : status = dom_sid_split_rid(tmp_ctx, account_sid, &domain_sid, NULL);
424 80099 : if (!NT_STATUS_IS_OK(status)) {
425 0 : talloc_free(user_info_dc);
426 0 : return status;
427 : }
428 :
429 80099 : sids[PRIMARY_USER_SID_INDEX].sid = *account_sid;
430 80099 : sids[PRIMARY_USER_SID_INDEX].attrs = SE_GROUP_DEFAULT_FLAGS;
431 80099 : sids[PRIMARY_GROUP_SID_INDEX].sid = *domain_sid;
432 80099 : sid_append_rid(&sids[PRIMARY_GROUP_SID_INDEX].sid, ldb_msg_find_attr_as_uint(msg, "primaryGroupID", ~0));
433 80099 : 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 80099 : status = authsam_domain_group_filter(tmp_ctx, &filter);
441 80099 : if (!NT_STATUS_IS_OK(status)) {
442 0 : TALLOC_FREE(user_info_dc);
443 0 : return status;
444 : }
445 :
446 80099 : primary_group_dn_str = talloc_asprintf(
447 : tmp_ctx,
448 : "<SID=%s>",
449 80099 : dom_sid_str_buf(&sids[PRIMARY_GROUP_SID_INDEX].sid, &buf));
450 80099 : 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 80099 : primary_group_dn = ldb_dn_new(tmp_ctx, sam_ctx, primary_group_dn_str);
457 80099 : 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 80099 : 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 80099 : 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 80099 : primary_group_type = ldb_msg_find_attr_as_uint(primary_group_msg, "groupType", 0);
480 80099 : 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 80081 : sids[REMAINING_SIDS_INDEX] = sids[PRIMARY_GROUP_SID_INDEX];
494 80081 : ++num_sids;
495 : }
496 :
497 80099 : 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 80099 : status = dsdb_expand_nested_groups(sam_ctx, &primary_group_blob, true, filter,
509 : user_info_dc, &sids, &num_sids);
510 80099 : 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 80099 : el = ldb_msg_find_element(msg, "memberOf");
517 332297 : 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 248998 : status = dsdb_expand_nested_groups(sam_ctx, &el->values[i], false, filter,
522 : user_info_dc, &sids, &num_sids);
523 248998 : if (!NT_STATUS_IS_OK(status)) {
524 0 : talloc_free(user_info_dc);
525 0 : return status;
526 : }
527 : }
528 :
529 80099 : user_info_dc->sids = sids;
530 80099 : user_info_dc->num_sids = num_sids;
531 :
532 80099 : user_info_dc->info = info = talloc_zero(user_info_dc, struct auth_user_info);
533 80099 : if (user_info_dc->info == NULL) {
534 0 : talloc_free(user_info_dc);
535 0 : return NT_STATUS_NO_MEMORY;
536 : }
537 :
538 80099 : str = ldb_msg_find_attr_as_string(msg, "sAMAccountName", NULL);
539 80099 : info->account_name = talloc_strdup(info, str);
540 80099 : if (info->account_name == NULL) {
541 0 : TALLOC_FREE(user_info_dc);
542 0 : return NT_STATUS_NO_MEMORY;
543 : }
544 :
545 80099 : str = ldb_msg_find_attr_as_string(msg, "userPrincipalName", NULL);
546 80099 : if (str == NULL && dns_domain_name != NULL) {
547 69355 : info->user_principal_name = talloc_asprintf(info, "%s@%s",
548 : info->account_name,
549 : dns_domain_name);
550 69355 : if (info->user_principal_name == NULL) {
551 0 : TALLOC_FREE(user_info_dc);
552 0 : return NT_STATUS_NO_MEMORY;
553 : }
554 69355 : info->user_principal_constructed = true;
555 10744 : } else if (str != NULL) {
556 10646 : info->user_principal_name = talloc_strdup(info, str);
557 10646 : if (info->user_principal_name == NULL) {
558 0 : TALLOC_FREE(user_info_dc);
559 0 : return NT_STATUS_NO_MEMORY;
560 : }
561 : }
562 :
563 80099 : info->domain_name = talloc_strdup(info, domain_name);
564 80099 : if (info->domain_name == NULL) {
565 0 : TALLOC_FREE(user_info_dc);
566 0 : return NT_STATUS_NO_MEMORY;
567 : }
568 :
569 80099 : if (dns_domain_name != NULL) {
570 80001 : info->dns_domain_name = talloc_strdup(info, dns_domain_name);
571 80001 : if (info->dns_domain_name == NULL) {
572 0 : TALLOC_FREE(user_info_dc);
573 0 : return NT_STATUS_NO_MEMORY;
574 : }
575 : }
576 :
577 80099 : str = ldb_msg_find_attr_as_string(msg, "displayName", "");
578 80099 : info->full_name = talloc_strdup(info, str);
579 80099 : if (info->full_name == NULL) {
580 0 : TALLOC_FREE(user_info_dc);
581 0 : return NT_STATUS_NO_MEMORY;
582 : }
583 :
584 80099 : str = ldb_msg_find_attr_as_string(msg, "scriptPath", "");
585 80099 : info->logon_script = talloc_strdup(info, str);
586 80099 : if (info->logon_script == NULL) {
587 0 : TALLOC_FREE(user_info_dc);
588 0 : return NT_STATUS_NO_MEMORY;
589 : }
590 :
591 80099 : str = ldb_msg_find_attr_as_string(msg, "profilePath", "");
592 80099 : info->profile_path = talloc_strdup(info, str);
593 80099 : if (info->profile_path == NULL) {
594 0 : TALLOC_FREE(user_info_dc);
595 0 : return NT_STATUS_NO_MEMORY;
596 : }
597 :
598 80099 : str = ldb_msg_find_attr_as_string(msg, "homeDirectory", "");
599 80099 : info->home_directory = talloc_strdup(info, str);
600 80099 : if (info->home_directory == NULL) {
601 0 : TALLOC_FREE(user_info_dc);
602 0 : return NT_STATUS_NO_MEMORY;
603 : }
604 :
605 80099 : str = ldb_msg_find_attr_as_string(msg, "homeDrive", "");
606 80099 : info->home_drive = talloc_strdup(info, str);
607 80099 : if (info->home_drive == NULL) {
608 0 : TALLOC_FREE(user_info_dc);
609 0 : return NT_STATUS_NO_MEMORY;
610 : }
611 :
612 80099 : info->logon_server = talloc_strdup(info, netbios_name);
613 80099 : if (info->logon_server == NULL) {
614 0 : TALLOC_FREE(user_info_dc);
615 0 : return NT_STATUS_NO_MEMORY;
616 : }
617 :
618 80099 : info->last_logon = samdb_result_nttime(msg, "lastLogon", 0);
619 80099 : info->last_logoff = samdb_result_last_logoff(msg);
620 80099 : info->acct_expiry = samdb_result_account_expires(msg);
621 80099 : info->last_password_change = samdb_result_nttime(msg,
622 : "pwdLastSet", 0);
623 3200 : info->allow_password_change
624 80099 : = samdb_result_allow_password_change(sam_ctx, mem_ctx,
625 : domain_dn, msg, "pwdLastSet");
626 80099 : info->force_password_change = samdb_result_nttime(msg,
627 : "msDS-UserPasswordExpiryTimeComputed", 0);
628 80099 : info->logon_count = ldb_msg_find_attr_as_uint(msg, "logonCount", 0);
629 80099 : info->bad_password_count = ldb_msg_find_attr_as_uint(msg, "badPwdCount",
630 : 0);
631 :
632 80099 : info->acct_flags = samdb_result_acct_flags(msg, "msDS-User-Account-Control-Computed");
633 :
634 80099 : user_info_dc->user_session_key = data_blob_talloc(user_info_dc,
635 : user_sess_key.data,
636 : user_sess_key.length);
637 80099 : 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 80099 : user_info_dc->lm_session_key = data_blob_talloc(user_info_dc,
644 : lm_sess_key.data,
645 : lm_sess_key.length);
646 80099 : 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 80099 : if (info->acct_flags & ACB_SVRTRUST) {
654 : /* the SID_NT_ENTERPRISE_DCS SID gets added into the
655 : PAC */
656 3558 : 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 3558 : if (user_info_dc->sids == NULL) {
661 0 : TALLOC_FREE(user_info_dc);
662 0 : return NT_STATUS_NO_MEMORY;
663 : }
664 3558 : user_info_dc->sids[user_info_dc->num_sids].sid = global_sid_Enterprise_DCs;
665 3558 : user_info_dc->sids[user_info_dc->num_sids].attrs = SE_GROUP_DEFAULT_FLAGS;
666 3558 : user_info_dc->num_sids++;
667 : }
668 :
669 80099 : 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 */
672 664 : 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);
676 664 : if (user_info_dc->sids == NULL) {
677 0 : TALLOC_FREE(user_info_dc);
678 0 : return NT_STATUS_NO_MEMORY;
679 : }
680 664 : user_info_dc->sids[user_info_dc->num_sids].sid = *domain_sid;
681 664 : sid_append_rid(&user_info_dc->sids[user_info_dc->num_sids].sid,
682 : DOMAIN_RID_ENTERPRISE_READONLY_DCS);
683 664 : user_info_dc->sids[user_info_dc->num_sids].attrs = SE_GROUP_DEFAULT_FLAGS;
684 664 : user_info_dc->num_sids++;
685 : }
686 :
687 80099 : info->user_flags = 0;
688 :
689 80099 : talloc_free(tmp_ctx);
690 80099 : *_user_info_dc = user_info_dc;
691 :
692 80099 : return NT_STATUS_OK;
693 : }
694 :
695 49681 : _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 49681 : char *filter = NULL;
700 1658 : NTSTATUS status;
701 1658 : uint32_t i;
702 49681 : 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 49681 : status = authsam_domain_group_filter(mem_ctx, &filter);
715 49681 : 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 49681 : n = user_info_dc->num_sids;
724 442198 : for (i = 0; i < n; i++) {
725 392517 : struct dom_sid *sid = &user_info_dc->sids[i].sid;
726 13685 : struct dom_sid_buf sid_buf;
727 13685 : char dn_str[sizeof(sid_buf.buf)*2];
728 392517 : DATA_BLOB dn_blob = data_blob_null;
729 :
730 392517 : snprintf(dn_str,
731 : sizeof(dn_str),
732 : "<SID=%s>",
733 : dom_sid_str_buf(sid, &sid_buf));
734 392517 : 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 392517 : 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 392517 : if (!NT_STATUS_IS_OK(status)) {
747 0 : talloc_free(filter);
748 0 : return status;
749 : }
750 : }
751 :
752 49681 : talloc_free(filter);
753 49681 : 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 31198 : 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 31198 : struct auth_user_info_dc *user_info_dc = NULL;
765 31198 : NTSTATUS status = NT_STATUS_OK;
766 :
767 31198 : if (user_info_dc_in == NULL) {
768 0 : return NT_STATUS_INVALID_PARAMETER;
769 : }
770 :
771 31198 : if (user_info_dc_out == NULL) {
772 0 : return NT_STATUS_INVALID_PARAMETER;
773 : }
774 :
775 31198 : user_info_dc = talloc_zero(mem_ctx, struct auth_user_info_dc);
776 31198 : if (user_info_dc == NULL) {
777 0 : status = NT_STATUS_NO_MEMORY;
778 0 : goto out;
779 : }
780 :
781 31198 : *user_info_dc = *user_info_dc_in;
782 :
783 31198 : if (user_info_dc->info != NULL) {
784 31198 : 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 31198 : 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 31198 : 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 31198 : 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 31198 : user_info_dc->sids = talloc_memdup(user_info_dc,
816 : user_info_dc->sids,
817 : talloc_get_size(user_info_dc->sids));
818 31198 : if (user_info_dc->sids == NULL) {
819 0 : status = NT_STATUS_NO_MEMORY;
820 0 : goto out;
821 : }
822 : }
823 :
824 31198 : *user_info_dc_out = user_info_dc;
825 31198 : user_info_dc = NULL;
826 :
827 31198 : out:
828 31198 : talloc_free(user_info_dc);
829 31198 : return status;
830 : }
831 :
832 106127 : NTSTATUS sam_get_results_principal(struct ldb_context *sam_ctx,
833 : TALLOC_CTX *mem_ctx, const char *principal,
834 : const char **attrs,
835 : struct ldb_dn **domain_dn,
836 : struct ldb_message **msg)
837 : {
838 3413 : struct ldb_dn *user_dn;
839 3413 : NTSTATUS nt_status;
840 106127 : TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
841 3413 : int ret;
842 :
843 106127 : if (!tmp_ctx) {
844 0 : return NT_STATUS_NO_MEMORY;
845 : }
846 :
847 106127 : nt_status = crack_user_principal_name(sam_ctx, tmp_ctx, principal,
848 : &user_dn, domain_dn);
849 106127 : if (!NT_STATUS_IS_OK(nt_status)) {
850 2776 : talloc_free(tmp_ctx);
851 2776 : return nt_status;
852 : }
853 :
854 : /* pull the user attributes */
855 103351 : ret = dsdb_search_one(sam_ctx, tmp_ctx, msg, user_dn,
856 : LDB_SCOPE_BASE, attrs,
857 : DSDB_SEARCH_SHOW_EXTENDED_DN | DSDB_SEARCH_NO_GLOBAL_CATALOG,
858 : "(objectClass=*)");
859 103351 : if (ret != LDB_SUCCESS) {
860 0 : talloc_free(tmp_ctx);
861 0 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
862 : }
863 103351 : talloc_steal(mem_ctx, *msg);
864 103351 : talloc_steal(mem_ctx, *domain_dn);
865 103351 : talloc_free(tmp_ctx);
866 :
867 103351 : return NT_STATUS_OK;
868 : }
869 :
870 : /* Used in the gensec_gssapi and gensec_krb5 server-side code, where the PAC isn't available, and for tokenGroups in the DSDB stack.
871 :
872 : Supply either a principal or a DN
873 : */
874 471 : NTSTATUS authsam_get_user_info_dc_principal(TALLOC_CTX *mem_ctx,
875 : struct loadparm_context *lp_ctx,
876 : struct ldb_context *sam_ctx,
877 : const char *principal,
878 : struct ldb_dn *user_dn,
879 : struct auth_user_info_dc **user_info_dc)
880 : {
881 41 : NTSTATUS nt_status;
882 471 : DATA_BLOB user_sess_key = data_blob(NULL, 0);
883 471 : DATA_BLOB lm_sess_key = data_blob(NULL, 0);
884 :
885 41 : struct ldb_message *msg;
886 41 : struct ldb_dn *domain_dn;
887 :
888 471 : TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
889 471 : if (!tmp_ctx) {
890 0 : return NT_STATUS_NO_MEMORY;
891 : }
892 :
893 471 : if (principal) {
894 0 : nt_status = sam_get_results_principal(sam_ctx, tmp_ctx, principal,
895 : user_attrs, &domain_dn, &msg);
896 0 : if (!NT_STATUS_IS_OK(nt_status)) {
897 0 : talloc_free(tmp_ctx);
898 0 : return nt_status;
899 : }
900 471 : } else if (user_dn) {
901 41 : struct dom_sid *user_sid, *domain_sid;
902 41 : int ret;
903 : /* pull the user attributes */
904 471 : ret = dsdb_search_one(sam_ctx, tmp_ctx, &msg, user_dn,
905 : LDB_SCOPE_BASE, user_attrs,
906 : DSDB_SEARCH_SHOW_EXTENDED_DN | DSDB_SEARCH_NO_GLOBAL_CATALOG,
907 : "(objectClass=*)");
908 471 : if (ret == LDB_ERR_NO_SUCH_OBJECT) {
909 0 : talloc_free(tmp_ctx);
910 0 : return NT_STATUS_NO_SUCH_USER;
911 471 : } else if (ret != LDB_SUCCESS) {
912 0 : talloc_free(tmp_ctx);
913 0 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
914 : }
915 :
916 471 : user_sid = samdb_result_dom_sid(msg, msg, "objectSid");
917 :
918 471 : nt_status = dom_sid_split_rid(tmp_ctx, user_sid, &domain_sid, NULL);
919 471 : if (!NT_STATUS_IS_OK(nt_status)) {
920 0 : talloc_free(tmp_ctx);
921 0 : return nt_status;
922 : }
923 :
924 471 : domain_dn = samdb_search_dn(sam_ctx, mem_ctx, NULL,
925 : "(&(objectSid=%s)(objectClass=domain))",
926 : ldap_encode_ndr_dom_sid(tmp_ctx, domain_sid));
927 471 : if (!domain_dn) {
928 0 : struct dom_sid_buf buf;
929 0 : DEBUG(3, ("authsam_get_user_info_dc_principal: Failed to find domain with: SID %s\n",
930 : dom_sid_str_buf(domain_sid, &buf)));
931 0 : talloc_free(tmp_ctx);
932 0 : return NT_STATUS_NO_SUCH_USER;
933 : }
934 :
935 : } else {
936 0 : talloc_free(tmp_ctx);
937 0 : return NT_STATUS_INVALID_PARAMETER;
938 : }
939 :
940 471 : nt_status = authsam_make_user_info_dc(tmp_ctx, sam_ctx,
941 : lpcfg_netbios_name(lp_ctx),
942 : lpcfg_sam_name(lp_ctx),
943 : lpcfg_sam_dnsname(lp_ctx),
944 : domain_dn,
945 : msg,
946 : user_sess_key, lm_sess_key,
947 : user_info_dc);
948 471 : if (!NT_STATUS_IS_OK(nt_status)) {
949 0 : talloc_free(tmp_ctx);
950 0 : return nt_status;
951 : }
952 :
953 471 : talloc_steal(mem_ctx, *user_info_dc);
954 471 : talloc_free(tmp_ctx);
955 :
956 471 : return NT_STATUS_OK;
957 : }
958 :
959 : /*
960 : * Returns the details for the Password Settings Object (PSO), if one applies
961 : * the user.
962 : */
963 3594 : static int authsam_get_user_pso(struct ldb_context *sam_ctx,
964 : TALLOC_CTX *mem_ctx,
965 : struct ldb_message *user_msg,
966 : struct ldb_message **pso_msg)
967 : {
968 3594 : const char *attrs[] = { "msDS-LockoutThreshold",
969 : "msDS-LockoutObservationWindow",
970 : NULL };
971 3594 : struct ldb_dn *pso_dn = NULL;
972 3594 : struct ldb_result *res = NULL;
973 13 : int ret;
974 :
975 : /* check if the user has a PSO that applies to it */
976 3594 : pso_dn = ldb_msg_find_attr_as_dn(sam_ctx, mem_ctx, user_msg,
977 : "msDS-ResultantPSO");
978 :
979 3594 : if (pso_dn != NULL) {
980 26 : ret = dsdb_search_dn(sam_ctx, mem_ctx, &res, pso_dn, attrs, 0);
981 26 : if (ret != LDB_SUCCESS) {
982 0 : return ret;
983 : }
984 :
985 25 : *pso_msg = res->msgs[0];
986 : }
987 :
988 3581 : return LDB_SUCCESS;
989 : }
990 :
991 : /*
992 : * Re-read the bad password and successful logon data for a user.
993 : *
994 : * The DN in the passed user record should contain the "objectGUID" in case the
995 : * object DN has changed.
996 : */
997 42357 : NTSTATUS authsam_reread_user_logon_data(
998 : struct ldb_context *sam_ctx,
999 : TALLOC_CTX *mem_ctx,
1000 : const struct ldb_message *user_msg,
1001 : struct ldb_message **current)
1002 : {
1003 42357 : const struct ldb_val *v = NULL;
1004 42357 : struct ldb_result *res = NULL;
1005 42357 : uint16_t acct_flags = 0;
1006 42357 : const char *attr_name = "msDS-User-Account-Control-Computed";
1007 :
1008 1197 : int ret;
1009 :
1010 : /*
1011 : * Re-read the account details, using the GUID in case the DN
1012 : * is being changed (this is automatic in LDB because the
1013 : * original search also used DSDB_SEARCH_SHOW_EXTENDED_DN)
1014 : *
1015 : * We re read all the attributes in user_attrs, rather than using a
1016 : * subset to ensure that we can reuse existing validation code.
1017 : */
1018 43554 : ret = dsdb_search_dn(sam_ctx,
1019 : mem_ctx,
1020 : &res,
1021 42357 : user_msg->dn,
1022 : user_attrs,
1023 : DSDB_SEARCH_SHOW_EXTENDED_DN);
1024 42357 : if (ret != LDB_SUCCESS) {
1025 4 : DBG_ERR("Unable to re-read account control data for %s\n",
1026 : ldb_dn_get_linearized(user_msg->dn));
1027 4 : return NT_STATUS_INTERNAL_ERROR;
1028 : }
1029 :
1030 : /*
1031 : * Ensure the account has not been locked out by another request
1032 : */
1033 42353 : v = ldb_msg_find_ldb_val(res->msgs[0], attr_name);
1034 42353 : if (v == NULL || v->data == NULL) {
1035 1 : DBG_ERR("No %s attribute for %s\n",
1036 : attr_name,
1037 : ldb_dn_get_linearized(user_msg->dn));
1038 1 : TALLOC_FREE(res);
1039 1 : return NT_STATUS_INTERNAL_ERROR;
1040 : }
1041 42352 : acct_flags = samdb_result_acct_flags(res->msgs[0], attr_name);
1042 42352 : if (acct_flags & ACB_AUTOLOCK) {
1043 6 : DBG_WARNING(
1044 : "Account for user %s was locked out.\n",
1045 : ldb_dn_get_linearized(user_msg->dn));
1046 6 : TALLOC_FREE(res);
1047 6 : return NT_STATUS_ACCOUNT_LOCKED_OUT;
1048 : }
1049 42346 : *current = talloc_steal(mem_ctx, res->msgs[0]);
1050 42346 : TALLOC_FREE(res);
1051 42346 : return NT_STATUS_OK;
1052 : }
1053 :
1054 107478 : static struct db_context *authsam_get_bad_password_db(
1055 : TALLOC_CTX *mem_ctx,
1056 : struct ldb_context *sam_ctx)
1057 : {
1058 107478 : struct loadparm_context *lp_ctx = NULL;
1059 107478 : const char *db_name = "bad_password";
1060 107478 : struct db_context *db_ctx = NULL;
1061 :
1062 107478 : lp_ctx = ldb_get_opaque(sam_ctx, "loadparm");
1063 107478 : if (lp_ctx == NULL) {
1064 1 : DBG_ERR("Unable to get loadparm_context\n");
1065 1 : return NULL;
1066 : }
1067 :
1068 107477 : db_ctx = cluster_db_tmp_open(mem_ctx, lp_ctx, db_name, TDB_DEFAULT);
1069 107477 : if (db_ctx == NULL) {
1070 4 : DBG_ERR("Unable to open bad password attempts database\n");
1071 4 : return NULL;
1072 : }
1073 102306 : return db_ctx;
1074 : }
1075 :
1076 107473 : static NTSTATUS get_object_sid_as_tdb_data(
1077 : TALLOC_CTX *mem_ctx,
1078 : const struct ldb_message *msg,
1079 : struct dom_sid_buf *buf,
1080 : TDB_DATA *key)
1081 : {
1082 107473 : struct dom_sid *objectsid = NULL;
1083 :
1084 : /*
1085 : * Convert the objectSID to a human readable form to
1086 : * make debugging easier
1087 : */
1088 107473 : objectsid = samdb_result_dom_sid(mem_ctx, msg, "objectSID");
1089 107473 : if (objectsid == NULL) {
1090 3 : DBG_ERR("Unable to extract objectSID\n");
1091 3 : return NT_STATUS_INTERNAL_ERROR;
1092 : }
1093 107470 : dom_sid_str_buf(objectsid, buf);
1094 107470 : key->dptr = (unsigned char *)buf->buf;
1095 107470 : key->dsize = strlen(buf->buf);
1096 :
1097 107470 : talloc_free(objectsid);
1098 :
1099 107470 : return NT_STATUS_OK;
1100 : }
1101 :
1102 : /*
1103 : * Add the users objectSID to the bad password attempt database
1104 : * to indicate that last authentication failed due to a bad password
1105 : */
1106 582 : static NTSTATUS authsam_set_bad_password_indicator(
1107 : struct ldb_context *sam_ctx,
1108 : TALLOC_CTX *mem_ctx,
1109 : const struct ldb_message *msg)
1110 : {
1111 582 : NTSTATUS status = NT_STATUS_OK;
1112 4 : struct dom_sid_buf buf;
1113 582 : TDB_DATA key = {0};
1114 582 : TDB_DATA value = {0};
1115 582 : struct db_context *db = NULL;
1116 :
1117 582 : TALLOC_CTX *ctx = talloc_new(mem_ctx);
1118 582 : if (ctx == NULL) {
1119 0 : return NT_STATUS_NO_MEMORY;
1120 : }
1121 :
1122 582 : db = authsam_get_bad_password_db(ctx, sam_ctx);
1123 582 : if (db == NULL) {
1124 1 : status = NT_STATUS_INTERNAL_ERROR;
1125 1 : goto exit;
1126 : }
1127 :
1128 581 : status = get_object_sid_as_tdb_data(ctx, msg, &buf, &key);
1129 581 : if (!NT_STATUS_IS_OK(status)) {
1130 1 : goto exit;
1131 : }
1132 :
1133 580 : status = dbwrap_store(db, key, value, 0);
1134 580 : if (!NT_STATUS_IS_OK(status)) {
1135 1 : DBG_ERR("Unable to store bad password indicator\n");
1136 : }
1137 579 : exit:
1138 582 : talloc_free(ctx);
1139 582 : return status;
1140 : }
1141 :
1142 : /*
1143 : * see if the users objectSID is in the bad password attempt database
1144 : */
1145 53451 : static NTSTATUS authsam_check_bad_password_indicator(
1146 : struct ldb_context *sam_ctx,
1147 : TALLOC_CTX *mem_ctx,
1148 : bool *exists,
1149 : const struct ldb_message *msg)
1150 : {
1151 53451 : NTSTATUS status = NT_STATUS_OK;
1152 2587 : struct dom_sid_buf buf;
1153 53451 : TDB_DATA key = {0};
1154 53451 : struct db_context *db = NULL;
1155 :
1156 53451 : TALLOC_CTX *ctx = talloc_new(mem_ctx);
1157 53451 : if (ctx == NULL) {
1158 0 : return NT_STATUS_NO_MEMORY;
1159 : }
1160 :
1161 53451 : db = authsam_get_bad_password_db(ctx, sam_ctx);
1162 53451 : if (db == NULL) {
1163 1 : status = NT_STATUS_INTERNAL_ERROR;
1164 1 : goto exit;
1165 : }
1166 :
1167 53450 : status = get_object_sid_as_tdb_data(ctx, msg, &buf, &key);
1168 53450 : if (!NT_STATUS_IS_OK(status)) {
1169 1 : goto exit;
1170 : }
1171 :
1172 53449 : *exists = dbwrap_exists(db, key);
1173 53451 : exit:
1174 53451 : talloc_free(ctx);
1175 53451 : return status;
1176 : }
1177 :
1178 : /*
1179 : * Remove the users objectSID to the bad password attempt database
1180 : * to indicate that last authentication succeeded.
1181 : */
1182 53443 : static NTSTATUS authsam_clear_bad_password_indicator(
1183 : struct ldb_context *sam_ctx,
1184 : TALLOC_CTX *mem_ctx,
1185 : const struct ldb_message *msg)
1186 : {
1187 53443 : NTSTATUS status = NT_STATUS_OK;
1188 2579 : struct dom_sid_buf buf;
1189 53443 : TDB_DATA key = {0};
1190 53443 : struct db_context *db = NULL;
1191 :
1192 53443 : TALLOC_CTX *ctx = talloc_new(mem_ctx);
1193 53443 : if (ctx == NULL) {
1194 0 : return NT_STATUS_NO_MEMORY;
1195 : }
1196 :
1197 53443 : db = authsam_get_bad_password_db(ctx, sam_ctx);
1198 53443 : if (db == NULL) {
1199 1 : status = NT_STATUS_INTERNAL_ERROR;
1200 1 : goto exit;
1201 : }
1202 :
1203 53442 : status = get_object_sid_as_tdb_data(ctx, msg, &buf, &key);
1204 53442 : if (!NT_STATUS_IS_OK(status)) {
1205 1 : goto exit;
1206 : }
1207 :
1208 53441 : status = dbwrap_delete(db, key);
1209 53441 : if (NT_STATUS_EQUAL(NT_STATUS_NOT_FOUND, status)) {
1210 : /*
1211 : * Ok there was no bad password indicator this is expected
1212 : */
1213 53081 : status = NT_STATUS_OK;
1214 : }
1215 53441 : if (NT_STATUS_IS_ERR(status)) {
1216 1 : DBG_ERR("Unable to delete bad password indicator, %s %s\n",
1217 : nt_errstr(status),
1218 : get_friendly_nt_error_msg(status));
1219 : }
1220 53440 : exit:
1221 53443 : talloc_free(ctx);
1222 53443 : return status;
1223 : }
1224 :
1225 3595 : NTSTATUS authsam_update_bad_pwd_count(struct ldb_context *sam_ctx,
1226 : struct ldb_message *msg,
1227 : struct ldb_dn *domain_dn)
1228 : {
1229 3595 : const char *attrs[] = { "lockoutThreshold",
1230 : "lockOutObservationWindow",
1231 : "lockoutDuration",
1232 : "pwdProperties",
1233 : NULL };
1234 14 : int ret;
1235 14 : NTSTATUS status;
1236 14 : struct ldb_result *domain_res;
1237 3595 : struct ldb_message *msg_mod = NULL;
1238 3595 : struct ldb_message *current = NULL;
1239 3595 : struct ldb_message *pso_msg = NULL;
1240 3595 : bool txn_active = false;
1241 14 : TALLOC_CTX *mem_ctx;
1242 :
1243 3595 : mem_ctx = talloc_new(msg);
1244 3595 : if (mem_ctx == NULL) {
1245 0 : return NT_STATUS_NO_MEMORY;
1246 : }
1247 :
1248 3595 : ret = dsdb_search_dn(sam_ctx, mem_ctx, &domain_res, domain_dn, attrs, 0);
1249 3595 : if (ret != LDB_SUCCESS) {
1250 1 : TALLOC_FREE(mem_ctx);
1251 1 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
1252 : }
1253 :
1254 3594 : ret = authsam_get_user_pso(sam_ctx, mem_ctx, msg, &pso_msg);
1255 3594 : if (ret != LDB_SUCCESS) {
1256 :
1257 : /*
1258 : * fallback to using the domain defaults so that we still
1259 : * record the bad password attempt
1260 : */
1261 1 : DBG_ERR("Error (%d) checking PSO for %s\n",
1262 : ret, ldb_dn_get_linearized(msg->dn));
1263 : }
1264 :
1265 : /*
1266 : * To ensure that the bad password count is updated atomically,
1267 : * we need to:
1268 : * begin a transaction
1269 : * re-read the account details,
1270 : * using the <GUID= part of the DN
1271 : * update the bad password count
1272 : * commit the transaction.
1273 : */
1274 :
1275 : /*
1276 : * Start a new transaction
1277 : */
1278 3594 : ret = ldb_transaction_start(sam_ctx);
1279 3594 : if (ret != LDB_SUCCESS) {
1280 1 : status = NT_STATUS_INTERNAL_ERROR;
1281 1 : goto error;
1282 : }
1283 3593 : txn_active = true;
1284 :
1285 : /*
1286 : * Re-read the account details, using the GUID in case the DN
1287 : * is being changed.
1288 : */
1289 3593 : status = authsam_reread_user_logon_data(
1290 : sam_ctx, mem_ctx, msg, ¤t);
1291 3593 : if (!NT_STATUS_IS_OK(status)) {
1292 : /* The re-read can return account locked out, as well
1293 : * as an internal error
1294 : */
1295 7 : if (NT_STATUS_EQUAL(status, NT_STATUS_ACCOUNT_LOCKED_OUT)) {
1296 : /*
1297 : * For NT_STATUS_ACCOUNT_LOCKED_OUT we want to commit
1298 : * the transaction. Again to avoid cluttering the
1299 : * audit logs with spurious errors
1300 : */
1301 5 : goto exit;
1302 : }
1303 2 : goto error;
1304 : }
1305 :
1306 : /*
1307 : * Update the bad password count and if required lock the account
1308 : */
1309 3595 : status = dsdb_update_bad_pwd_count(
1310 : mem_ctx,
1311 : sam_ctx,
1312 : current,
1313 3586 : domain_res->msgs[0],
1314 : pso_msg,
1315 : &msg_mod);
1316 3586 : if (!NT_STATUS_IS_OK(status)) {
1317 1 : status = NT_STATUS_INTERNAL_ERROR;
1318 1 : goto error;
1319 : }
1320 :
1321 : /*
1322 : * Write the data back to disk if required.
1323 : */
1324 3585 : if (msg_mod != NULL) {
1325 4 : struct ldb_request *req;
1326 :
1327 582 : ret = ldb_build_mod_req(&req, sam_ctx, sam_ctx,
1328 : msg_mod,
1329 : NULL,
1330 : NULL,
1331 : ldb_op_default_callback,
1332 : NULL);
1333 582 : if (ret != LDB_SUCCESS) {
1334 1 : TALLOC_FREE(msg_mod);
1335 1 : status = NT_STATUS_INTERNAL_ERROR;
1336 1 : goto error;
1337 : }
1338 :
1339 581 : ret = ldb_request_add_control(req,
1340 : DSDB_CONTROL_FORCE_RODC_LOCAL_CHANGE,
1341 : false, NULL);
1342 581 : if (ret != LDB_SUCCESS) {
1343 1 : talloc_free(req);
1344 1 : status = NT_STATUS_INTERNAL_ERROR;
1345 1 : goto error;
1346 : }
1347 :
1348 : /*
1349 : * As we're in a transaction, make the ldb request directly
1350 : * to avoid the nested transaction that would result if we
1351 : * called dsdb_autotransaction_request
1352 : */
1353 580 : ret = ldb_request(sam_ctx, req);
1354 580 : if (ret == LDB_SUCCESS) {
1355 579 : ret = ldb_wait(req->handle, LDB_WAIT_ALL);
1356 : }
1357 580 : talloc_free(req);
1358 580 : if (ret != LDB_SUCCESS) {
1359 2 : status = NT_STATUS_INTERNAL_ERROR;
1360 2 : goto error;
1361 : }
1362 578 : status = authsam_set_bad_password_indicator(
1363 : sam_ctx, mem_ctx, msg);
1364 578 : if (!NT_STATUS_IS_OK(status)) {
1365 0 : goto error;
1366 : }
1367 : }
1368 : /*
1369 : * Note that we may not have updated the user record, but
1370 : * committing the transaction in that case is still the correct
1371 : * thing to do.
1372 : * If the transaction was cancelled, this would be logged by
1373 : * the dsdb audit log as a failure. When in fact it is expected
1374 : * behaviour.
1375 : */
1376 3003 : exit:
1377 3586 : TALLOC_FREE(mem_ctx);
1378 3586 : ret = ldb_transaction_commit(sam_ctx);
1379 3586 : if (ret != LDB_SUCCESS) {
1380 1 : DBG_ERR("Error (%d) %s, committing transaction,"
1381 : " while updating bad password count"
1382 : " for (%s)\n",
1383 : ret,
1384 : ldb_errstring(sam_ctx),
1385 : ldb_dn_get_linearized(msg->dn));
1386 1 : return NT_STATUS_INTERNAL_ERROR;
1387 : }
1388 3585 : return status;
1389 :
1390 8 : error:
1391 8 : DBG_ERR("Failed to update badPwdCount, badPasswordTime or "
1392 : "set lockoutTime on %s: %s\n",
1393 : ldb_dn_get_linearized(msg->dn),
1394 : ldb_errstring(sam_ctx) != NULL ?
1395 : ldb_errstring(sam_ctx) :nt_errstr(status));
1396 8 : if (txn_active) {
1397 7 : ret = ldb_transaction_cancel(sam_ctx);
1398 7 : if (ret != LDB_SUCCESS) {
1399 1 : DBG_ERR("Error rolling back transaction,"
1400 : " while updating bad password count"
1401 : " on %s: %s\n",
1402 : ldb_dn_get_linearized(msg->dn),
1403 : ldb_errstring(sam_ctx));
1404 : }
1405 : }
1406 8 : TALLOC_FREE(mem_ctx);
1407 8 : return status;
1408 :
1409 : }
1410 :
1411 : /*
1412 : * msDS-LogonTimeSyncInterval is an int32_t number of days.
1413 : *
1414 : * The docs say: "the initial update, after the domain functional
1415 : * level is raised to DS_BEHAVIOR_WIN2003 or higher, is calculated as
1416 : * 14 days minus a random percentage of 5 days", but we aren't doing
1417 : * that. The blogosphere seems to think that this randomised update
1418 : * happens every time, but [MS-ADA1] doesn't agree.
1419 : *
1420 : * Dochelp referred us to the following blog post:
1421 : * http://blogs.technet.com/b/askds/archive/2009/04/15/the-lastlogontimestamp-attribute-what-it-was-designed-for-and-how-it-works.aspx
1422 : *
1423 : * when msDS-LogonTimeSyncInterval is zero, the lastLogonTimestamp is
1424 : * not changed.
1425 : */
1426 :
1427 52834 : static NTSTATUS authsam_calculate_lastlogon_sync_interval(
1428 : struct ldb_context *sam_ctx,
1429 : TALLOC_CTX *ctx,
1430 : struct ldb_dn *domain_dn,
1431 : NTTIME *sync_interval_nt)
1432 : {
1433 2584 : static const char *attrs[] = { "msDS-LogonTimeSyncInterval",
1434 : NULL };
1435 2584 : int ret;
1436 52834 : struct ldb_result *domain_res = NULL;
1437 52834 : TALLOC_CTX *mem_ctx = NULL;
1438 2584 : uint32_t sync_interval;
1439 :
1440 52834 : mem_ctx = talloc_new(ctx);
1441 52834 : if (mem_ctx == NULL) {
1442 0 : return NT_STATUS_NO_MEMORY;
1443 : }
1444 :
1445 52834 : ret = dsdb_search_dn(sam_ctx, mem_ctx, &domain_res, domain_dn, attrs,
1446 : 0);
1447 52834 : if (ret != LDB_SUCCESS || domain_res->count != 1) {
1448 0 : TALLOC_FREE(mem_ctx);
1449 0 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
1450 : }
1451 :
1452 52834 : sync_interval = ldb_msg_find_attr_as_int(domain_res->msgs[0],
1453 : "msDS-LogonTimeSyncInterval",
1454 : 14);
1455 52834 : DEBUG(5, ("sync interval is %d\n", sync_interval));
1456 52834 : if (sync_interval >= 5){
1457 : /*
1458 : * Subtract "a random percentage of 5" days. Presumably this
1459 : * percentage is between 0 and 100, and modulus is accurate
1460 : * enough.
1461 : */
1462 51103 : uint32_t r = generate_random() % 6;
1463 51103 : sync_interval -= r;
1464 51103 : DBG_INFO("randomised sync interval is %d (-%d)\n", sync_interval, r);
1465 : }
1466 : /* In the case where sync_interval < 5 there is no randomisation */
1467 :
1468 : /*
1469 : * msDS-LogonTimeSyncInterval is an int32_t number of days,
1470 : * while lastLogonTimestamp (to be updated) is in the 64 bit
1471 : * 100ns NTTIME format so we must convert.
1472 : */
1473 52834 : *sync_interval_nt = sync_interval * 24LL * 3600LL * 10000000LL;
1474 52834 : TALLOC_FREE(mem_ctx);
1475 52834 : return NT_STATUS_OK;
1476 : }
1477 :
1478 :
1479 : /*
1480 : * We only set lastLogonTimestamp if the current value is older than
1481 : * now - msDS-LogonTimeSyncInterval days.
1482 : *
1483 : * lastLogonTimestamp is in the 64 bit 100ns NTTIME format
1484 : */
1485 90317 : static NTSTATUS authsam_update_lastlogon_timestamp(struct ldb_context *sam_ctx,
1486 : struct ldb_message *msg_mod,
1487 : struct ldb_dn *domain_dn,
1488 : NTTIME old_timestamp,
1489 : NTTIME now,
1490 : NTTIME sync_interval_nt)
1491 : {
1492 3751 : int ret;
1493 90317 : DEBUG(5, ("old timestamp is %lld, threshold %lld, diff %lld\n",
1494 : (long long int)old_timestamp,
1495 : (long long int)(now - sync_interval_nt),
1496 : (long long int)(old_timestamp - now + sync_interval_nt)));
1497 :
1498 90317 : if (sync_interval_nt == 0){
1499 : /*
1500 : * Setting msDS-LogonTimeSyncInterval to zero is how you ask
1501 : * that nothing happens here.
1502 : */
1503 3377 : return NT_STATUS_OK;
1504 : }
1505 86940 : if (old_timestamp > now){
1506 0 : DEBUG(0, ("lastLogonTimestamp is in the future! (%lld > %lld)\n",
1507 : (long long int)old_timestamp, (long long int)now));
1508 : /* then what? */
1509 :
1510 86940 : } else if (old_timestamp < now - sync_interval_nt){
1511 17277 : DEBUG(5, ("updating lastLogonTimestamp to %lld\n",
1512 : (long long int)now));
1513 :
1514 : /* The time has come to update lastLogonTimestamp */
1515 17277 : ret = samdb_msg_add_int64(sam_ctx, msg_mod, msg_mod,
1516 : "lastLogonTimestamp", now);
1517 :
1518 17277 : if (ret != LDB_SUCCESS) {
1519 0 : return NT_STATUS_NO_MEMORY;
1520 : }
1521 : }
1522 86940 : return NT_STATUS_OK;
1523 : }
1524 :
1525 : /****************************************************************************
1526 : Look for the specified user in the sam, return ldb result structures
1527 : ****************************************************************************/
1528 :
1529 29980 : NTSTATUS authsam_search_account(TALLOC_CTX *mem_ctx, struct ldb_context *sam_ctx,
1530 : const char *account_name,
1531 : struct ldb_dn *domain_dn,
1532 : struct ldb_message **ret_msg)
1533 : {
1534 1410 : int ret;
1535 29980 : char *account_name_encoded = NULL;
1536 :
1537 29980 : account_name_encoded = ldb_binary_encode_string(mem_ctx, account_name);
1538 29980 : if (account_name_encoded == NULL) {
1539 0 : return NT_STATUS_NO_MEMORY;
1540 : }
1541 :
1542 : /* pull the user attributes */
1543 29980 : ret = dsdb_search_one(sam_ctx, mem_ctx, ret_msg, domain_dn, LDB_SCOPE_SUBTREE,
1544 : user_attrs,
1545 : DSDB_SEARCH_SHOW_EXTENDED_DN,
1546 : "(&(sAMAccountName=%s)(objectclass=user))",
1547 : account_name_encoded);
1548 29980 : if (ret == LDB_ERR_NO_SUCH_OBJECT) {
1549 1484 : DEBUG(3,("authsam_search_account: Couldn't find user [%s] in samdb, under %s\n",
1550 : account_name, ldb_dn_get_linearized(domain_dn)));
1551 1484 : return NT_STATUS_NO_SUCH_USER;
1552 : }
1553 28496 : if (ret != LDB_SUCCESS) {
1554 0 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
1555 : }
1556 :
1557 28496 : return NT_STATUS_OK;
1558 : }
1559 :
1560 :
1561 : /* Reset the badPwdCount to zero and update the lastLogon time. */
1562 53449 : NTSTATUS authsam_logon_success_accounting(struct ldb_context *sam_ctx,
1563 : const struct ldb_message *msg,
1564 : struct ldb_dn *domain_dn,
1565 : bool interactive_or_kerberos,
1566 : TALLOC_CTX *send_to_sam_mem_ctx,
1567 : struct netr_SendToSamBase **send_to_sam)
1568 : {
1569 2585 : int ret;
1570 2585 : NTSTATUS status;
1571 2585 : int badPwdCount;
1572 2585 : int dbBadPwdCount;
1573 2585 : int64_t lockoutTime;
1574 2585 : struct ldb_message *msg_mod;
1575 2585 : TALLOC_CTX *mem_ctx;
1576 2585 : struct timeval tv_now;
1577 2585 : NTTIME now;
1578 2585 : NTTIME lastLogonTimestamp;
1579 2585 : int64_t lockOutObservationWindow;
1580 53449 : NTTIME sync_interval_nt = 0;
1581 53449 : bool am_rodc = false;
1582 53449 : bool txn_active = false;
1583 2585 : bool need_db_reread;
1584 :
1585 53449 : mem_ctx = talloc_new(msg);
1586 53449 : if (mem_ctx == NULL) {
1587 0 : return NT_STATUS_NO_MEMORY;
1588 : }
1589 :
1590 : /*
1591 : * Any update of the last logon data, needs to be done inside a
1592 : * transaction.
1593 : * And the user data needs to be re-read, and the account re-checked
1594 : * for lockout.
1595 : *
1596 : * However we have long-running transactions like replication
1597 : * that could otherwise grind the system to a halt so we first
1598 : * determine if *this* account has seen a bad password,
1599 : * otherwise we only start a transaction if there was a need
1600 : * (because a change was to be made).
1601 : */
1602 :
1603 53449 : status = authsam_check_bad_password_indicator(
1604 : sam_ctx, mem_ctx, &need_db_reread, msg);
1605 53449 : if (!NT_STATUS_IS_OK(status)) {
1606 0 : TALLOC_FREE(mem_ctx);
1607 0 : return status;
1608 : }
1609 :
1610 53449 : if (interactive_or_kerberos == false) {
1611 : /*
1612 : * Avoid calculating this twice, it reads the PSO. A
1613 : * race on this is unimportant.
1614 : */
1615 1403 : lockOutObservationWindow
1616 22807 : = samdb_result_msds_LockoutObservationWindow(
1617 : sam_ctx, mem_ctx, domain_dn, msg);
1618 : }
1619 :
1620 53449 : ret = samdb_rodc(sam_ctx, &am_rodc);
1621 53449 : if (ret != LDB_SUCCESS) {
1622 1 : status = NT_STATUS_INTERNAL_ERROR;
1623 1 : goto error;
1624 : }
1625 :
1626 53448 : if (!am_rodc) {
1627 : /*
1628 : * Avoid reading the main domain DN twice. A race on
1629 : * this is unimportant.
1630 : */
1631 52834 : status = authsam_calculate_lastlogon_sync_interval(
1632 : sam_ctx, mem_ctx, domain_dn, &sync_interval_nt);
1633 :
1634 52834 : if (!NT_STATUS_IS_OK(status)) {
1635 0 : status = NT_STATUS_INTERNAL_ERROR;
1636 0 : goto error;
1637 : }
1638 : }
1639 :
1640 53448 : get_transaction:
1641 :
1642 91406 : if (need_db_reread) {
1643 38326 : struct ldb_message *current = NULL;
1644 :
1645 : /*
1646 : * Start a new transaction
1647 : */
1648 38326 : ret = ldb_transaction_start(sam_ctx);
1649 38326 : if (ret != LDB_SUCCESS) {
1650 1 : status = NT_STATUS_INTERNAL_ERROR;
1651 1 : goto error;
1652 : }
1653 :
1654 38325 : txn_active = true;
1655 :
1656 : /*
1657 : * Re-read the account details, using the GUID
1658 : * embedded in DN so this is safe against a race where
1659 : * it is being renamed.
1660 : */
1661 38325 : status = authsam_reread_user_logon_data(
1662 : sam_ctx, mem_ctx, msg, ¤t);
1663 38325 : if (!NT_STATUS_IS_OK(status)) {
1664 : /*
1665 : * The re-read can return account locked out, as well
1666 : * as an internal error
1667 : */
1668 1 : if (NT_STATUS_EQUAL(status, NT_STATUS_ACCOUNT_LOCKED_OUT)) {
1669 : /*
1670 : * For NT_STATUS_ACCOUNT_LOCKED_OUT we want to commit
1671 : * the transaction. Again to avoid cluttering the
1672 : * audit logs with spurious errors
1673 : */
1674 0 : goto exit;
1675 : }
1676 1 : goto error;
1677 : }
1678 38324 : msg = current;
1679 : }
1680 :
1681 91404 : lockoutTime = ldb_msg_find_attr_as_int64(msg, "lockoutTime", 0);
1682 91404 : dbBadPwdCount = ldb_msg_find_attr_as_int(msg, "badPwdCount", 0);
1683 91404 : tv_now = timeval_current();
1684 91404 : now = timeval_to_nttime(&tv_now);
1685 :
1686 91404 : if (interactive_or_kerberos) {
1687 58782 : badPwdCount = dbBadPwdCount;
1688 : } else {
1689 : /*
1690 : * We get lockOutObservationWindow above, before the
1691 : * transaction
1692 : */
1693 30273 : badPwdCount = dsdb_effective_badPwdCount(
1694 : msg, lockOutObservationWindow, now);
1695 : }
1696 95157 : lastLogonTimestamp =
1697 91404 : ldb_msg_find_attr_as_int64(msg, "lastLogonTimestamp", 0);
1698 :
1699 91404 : DEBUG(5, ("lastLogonTimestamp is %lld\n",
1700 : (long long int)lastLogonTimestamp));
1701 :
1702 91404 : msg_mod = ldb_msg_new(mem_ctx);
1703 91404 : if (msg_mod == NULL) {
1704 1 : status = NT_STATUS_NO_MEMORY;
1705 1 : goto error;
1706 : }
1707 :
1708 : /*
1709 : * By using the DN from msg->dn directly, we allow LDB to
1710 : * prefer the embedded GUID form, so this is actually quite
1711 : * safe even in the case where DN has been changed
1712 : */
1713 91403 : msg_mod->dn = msg->dn;
1714 :
1715 91403 : if (lockoutTime != 0) {
1716 : /*
1717 : * This implies "badPwdCount" = 0, see samldb_lockout_time()
1718 : */
1719 44 : ret = samdb_msg_add_int(sam_ctx, msg_mod, msg_mod, "lockoutTime", 0);
1720 44 : if (ret != LDB_SUCCESS) {
1721 0 : status = NT_STATUS_NO_MEMORY;
1722 0 : goto error;
1723 : }
1724 91359 : } else if (badPwdCount != 0) {
1725 327 : ret = samdb_msg_add_int(sam_ctx, msg_mod, msg_mod, "badPwdCount", 0);
1726 327 : if (ret != LDB_SUCCESS) {
1727 0 : status = NT_STATUS_NO_MEMORY;
1728 0 : goto error;
1729 : }
1730 : }
1731 :
1732 91403 : if (interactive_or_kerberos ||
1733 1607 : (badPwdCount != 0 && lockoutTime == 0)) {
1734 61333 : ret = samdb_msg_add_int64(sam_ctx, msg_mod, msg_mod,
1735 : "lastLogon", now);
1736 61333 : if (ret != LDB_SUCCESS) {
1737 1 : status = NT_STATUS_NO_MEMORY;
1738 1 : goto error;
1739 : }
1740 : }
1741 :
1742 91402 : if (interactive_or_kerberos) {
1743 2347 : int logonCount;
1744 :
1745 61129 : logonCount = ldb_msg_find_attr_as_int(msg, "logonCount", 0);
1746 :
1747 61129 : logonCount += 1;
1748 :
1749 61129 : ret = samdb_msg_add_int(sam_ctx, msg_mod, msg_mod,
1750 : "logonCount", logonCount);
1751 61129 : if (ret != LDB_SUCCESS) {
1752 0 : status = NT_STATUS_NO_MEMORY;
1753 0 : goto error;
1754 : }
1755 : } else {
1756 : /* Set an unset logonCount to 0 on first successful login */
1757 30273 : if (ldb_msg_find_ldb_val(msg, "logonCount") == NULL) {
1758 34 : ret = samdb_msg_add_int(sam_ctx, msg_mod, msg_mod,
1759 : "logonCount", 0);
1760 34 : if (ret != LDB_SUCCESS) {
1761 0 : TALLOC_FREE(mem_ctx);
1762 0 : return NT_STATUS_NO_MEMORY;
1763 : }
1764 : }
1765 : }
1766 :
1767 91402 : if (!am_rodc) {
1768 90317 : status = authsam_update_lastlogon_timestamp(
1769 : sam_ctx,
1770 : msg_mod,
1771 : domain_dn,
1772 : lastLogonTimestamp,
1773 : now,
1774 : sync_interval_nt);
1775 90317 : if (!NT_STATUS_IS_OK(status)) {
1776 0 : status = NT_STATUS_NO_MEMORY;
1777 0 : goto error;
1778 : }
1779 : } else {
1780 : /* Perform the (async) SendToSAM calls for MS-SAMS */
1781 1085 : if (dbBadPwdCount != 0 && send_to_sam != NULL) {
1782 0 : struct netr_SendToSamBase *base_msg;
1783 17 : struct GUID guid = samdb_result_guid(msg, "objectGUID");
1784 :
1785 17 : base_msg = talloc_zero(send_to_sam_mem_ctx,
1786 : struct netr_SendToSamBase);
1787 17 : if (base_msg == NULL) {
1788 0 : status = NT_STATUS_NO_MEMORY;
1789 0 : goto error;
1790 : }
1791 :
1792 17 : base_msg->message_type = SendToSamResetBadPasswordCount;
1793 17 : base_msg->message_size = 16;
1794 17 : base_msg->message.reset_bad_password.guid = guid;
1795 17 : *send_to_sam = base_msg;
1796 : }
1797 : }
1798 :
1799 91402 : if (msg_mod->num_elements > 0) {
1800 2349 : unsigned int i;
1801 2349 : struct ldb_request *req;
1802 :
1803 : /*
1804 : * If it turns out we are going to update the DB, go
1805 : * back to the start, get a transaction and the
1806 : * current DB state and try again
1807 : */
1808 76280 : if (txn_active == false) {
1809 37958 : need_db_reread = true;
1810 37958 : goto get_transaction;
1811 : }
1812 :
1813 : /* mark all the message elements as LDB_FLAG_MOD_REPLACE */
1814 108952 : for (i=0;i<msg_mod->num_elements;i++) {
1815 70630 : msg_mod->elements[i].flags = LDB_FLAG_MOD_REPLACE;
1816 : }
1817 :
1818 38322 : ret = ldb_build_mod_req(&req, sam_ctx, sam_ctx,
1819 : msg_mod,
1820 : NULL,
1821 : NULL,
1822 : ldb_op_default_callback,
1823 : NULL);
1824 38322 : if (ret != LDB_SUCCESS) {
1825 1 : status = NT_STATUS_INTERNAL_ERROR;
1826 1 : goto error;
1827 : }
1828 :
1829 38321 : ret = ldb_request_add_control(req,
1830 : DSDB_CONTROL_FORCE_RODC_LOCAL_CHANGE,
1831 : false, NULL);
1832 38321 : if (ret != LDB_SUCCESS) {
1833 1 : TALLOC_FREE(req);
1834 1 : status = NT_STATUS_INTERNAL_ERROR;
1835 1 : goto error;
1836 : }
1837 : /*
1838 : * As we're in a transaction, make the ldb request directly
1839 : * to avoid the nested transaction that would result if we
1840 : * called dsdb_autotransaction_request
1841 : */
1842 38320 : ret = ldb_request(sam_ctx, req);
1843 38320 : if (ret == LDB_SUCCESS) {
1844 38319 : ret = ldb_wait(req->handle, LDB_WAIT_ALL);
1845 : }
1846 38320 : TALLOC_FREE(req);
1847 38320 : if (ret != LDB_SUCCESS) {
1848 3 : status = NT_STATUS_INTERNAL_ERROR;
1849 3 : goto error;
1850 : }
1851 : }
1852 53439 : status = authsam_clear_bad_password_indicator(sam_ctx, mem_ctx, msg);
1853 53439 : if (!NT_STATUS_IS_OK(status)) {
1854 0 : goto error;
1855 : }
1856 :
1857 : /*
1858 : * Note that we may not have updated the user record, but
1859 : * committing the transaction in that case is still the correct
1860 : * thing to do.
1861 : * If the transaction was cancelled, this would be logged by
1862 : * the dsdb audit log as a failure. When in fact it is expected
1863 : * behaviour.
1864 : *
1865 : * Thankfully both TDB and LMDB seem to optimise for the empty
1866 : * transaction case
1867 : */
1868 53439 : exit:
1869 53439 : TALLOC_FREE(mem_ctx);
1870 :
1871 53439 : if (txn_active == false) {
1872 15122 : return status;
1873 : }
1874 :
1875 38317 : ret = ldb_transaction_commit(sam_ctx);
1876 38317 : if (ret != LDB_SUCCESS) {
1877 1 : DBG_ERR("Error (%d) %s, committing transaction,"
1878 : " while updating successful logon accounting"
1879 : " for (%s)\n",
1880 : ret,
1881 : ldb_errstring(sam_ctx),
1882 : ldb_dn_get_linearized(msg->dn));
1883 1 : return NT_STATUS_INTERNAL_ERROR;
1884 : }
1885 38316 : return status;
1886 :
1887 10 : error:
1888 10 : DBG_ERR("Failed to update badPwdCount, badPasswordTime or "
1889 : "set lockoutTime on %s: %s\n",
1890 : ldb_dn_get_linearized(msg->dn),
1891 : ldb_errstring(sam_ctx) != NULL ?
1892 : ldb_errstring(sam_ctx) :nt_errstr(status));
1893 10 : if (txn_active) {
1894 8 : ret = ldb_transaction_cancel(sam_ctx);
1895 8 : if (ret != LDB_SUCCESS) {
1896 1 : DBG_ERR("Error rolling back transaction,"
1897 : " while updating bad password count"
1898 : " on %s: %s\n",
1899 : ldb_dn_get_linearized(msg->dn),
1900 : ldb_errstring(sam_ctx));
1901 : }
1902 : }
1903 10 : TALLOC_FREE(mem_ctx);
1904 10 : return status;
1905 : }
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