83ed790054f5ca5c9bf102f36e2037ca8b1eb265
[kai/samba.git] / source4 / auth / sam.c
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
34 #define KRBTGT_ATTRS \
35         /* required for the krb5 kdc */         \
36         "objectClass",                          \
37         "sAMAccountName",                       \
38         "userPrincipalName",                    \
39         "servicePrincipalName",                 \
40         "msDS-KeyVersionNumber",                \
41         "msDS-SecondaryKrbTgtNumber",           \
42         "msDS-SupportedEncryptionTypes",        \
43         "supplementalCredentials",              \
44                                                 \
45         /* passwords */                         \
46         "dBCSPwd",                              \
47         "unicodePwd",                           \
48                                                 \
49         "userAccountControl",                   \
50         "objectSid",                            \
51                                                 \
52         "pwdLastSet",                           \
53         "accountExpires"
54
55 const char *krbtgt_attrs[] = {
56         KRBTGT_ATTRS, NULL
57 };
58
59 const char *server_attrs[] = {
60         KRBTGT_ATTRS, NULL
61 };
62
63 const char *user_attrs[] = {
64         KRBTGT_ATTRS,
65
66         "logonHours",
67
68         /* check 'allowed workstations' */
69         "userWorkstations",
70                        
71         /* required for user_info_dc, not access control: */
72         "displayName",
73         "scriptPath",
74         "profilePath",
75         "homeDirectory",
76         "homeDrive",
77         "lastLogon",
78         "lastLogoff",
79         "accountExpires",
80         "badPwdCount",
81         "logonCount",
82         "primaryGroupID",
83         "memberOf",
84         NULL,
85 };
86
87 /****************************************************************************
88  Check if a user is allowed to logon at this time. Note this is the
89  servers local time, as logon hours are just specified as a weekly
90  bitmask.
91 ****************************************************************************/
92                                                                                                               
93 static bool logon_hours_ok(struct ldb_message *msg, const char *name_for_logs)
94 {
95         /* In logon hours first bit is Sunday from 12AM to 1AM */
96         const struct ldb_val *hours;
97         struct tm *utctime;
98         time_t lasttime;
99         const char *asct;
100         uint8_t bitmask, bitpos;
101
102         hours = ldb_msg_find_ldb_val(msg, "logonHours");
103         if (!hours) {
104                 DEBUG(5,("logon_hours_ok: No hours restrictions for user %s\n", name_for_logs));
105                 return true;
106         }
107
108         if (hours->length != 168/8) {
109                 DEBUG(5,("logon_hours_ok: malformed logon hours restrictions for user %s\n", name_for_logs));
110                 return true;            
111         }
112
113         lasttime = time(NULL);
114         utctime = gmtime(&lasttime);
115         if (!utctime) {
116                 DEBUG(1, ("logon_hours_ok: failed to get gmtime. Failing logon for user %s\n",
117                         name_for_logs));
118                 return false;
119         }
120
121         /* find the corresponding byte and bit */
122         bitpos = (utctime->tm_wday * 24 + utctime->tm_hour) % 168;
123         bitmask = 1 << (bitpos % 8);
124
125         if (! (hours->data[bitpos/8] & bitmask)) {
126                 struct tm *t = localtime(&lasttime);
127                 if (!t) {
128                         asct = "INVALID TIME";
129                 } else {
130                         asct = asctime(t);
131                         if (!asct) {
132                                 asct = "INVALID TIME";
133                         }
134                 }
135                 
136                 DEBUG(1, ("logon_hours_ok: Account for user %s not allowed to "
137                           "logon at this time (%s).\n",
138                           name_for_logs, asct ));
139                 return false;
140         }
141
142         asct = asctime(utctime);
143         DEBUG(5,("logon_hours_ok: user %s allowed to logon at this time (%s)\n",
144                 name_for_logs, asct ? asct : "UNKNOWN TIME" ));
145
146         return true;
147 }
148
149 /****************************************************************************
150  Do a specific test for a SAM_ACCOUNT being valid for this connection
151  (ie not disabled, expired and the like).
152 ****************************************************************************/
153 _PUBLIC_ NTSTATUS authsam_account_ok(TALLOC_CTX *mem_ctx,
154                                      struct ldb_context *sam_ctx,
155                                      uint32_t logon_parameters,
156                                      struct ldb_dn *domain_dn,
157                                      struct ldb_message *msg,
158                                      const char *logon_workstation,
159                                      const char *name_for_logs,
160                                      bool allow_domain_trust,
161                                      bool password_change)
162 {
163         uint16_t acct_flags;
164         const char *workstation_list;
165         NTTIME acct_expiry;
166         NTTIME must_change_time;
167
168         NTTIME now;
169         DEBUG(4,("authsam_account_ok: Checking SMB password for user %s\n", name_for_logs));
170
171         acct_flags = samdb_result_acct_flags(sam_ctx, mem_ctx, msg, domain_dn);
172         
173         acct_expiry = samdb_result_account_expires(msg);
174
175         /* Check for when we must change this password, taking the
176          * userAccountControl flags into account */
177         must_change_time = samdb_result_force_password_change(sam_ctx, mem_ctx, 
178                                                               domain_dn, msg);
179
180         workstation_list = ldb_msg_find_attr_as_string(msg, "userWorkstations", NULL);
181
182         /* Quit if the account was disabled. */
183         if (acct_flags & ACB_DISABLED) {
184                 DEBUG(2,("authsam_account_ok: Account for user '%s' was disabled.\n", name_for_logs));
185                 return NT_STATUS_ACCOUNT_DISABLED;
186         }
187
188         /* Quit if the account was locked out. */
189         if (acct_flags & ACB_AUTOLOCK) {
190                 DEBUG(2,("authsam_account_ok: Account for user %s was locked out.\n", name_for_logs));
191                 return NT_STATUS_ACCOUNT_LOCKED_OUT;
192         }
193
194         /* Test account expire time */
195         unix_to_nt_time(&now, time(NULL));
196         if (now > acct_expiry) {
197                 DEBUG(2,("authsam_account_ok: Account for user '%s' has expired.\n", name_for_logs));
198                 DEBUG(3,("authsam_account_ok: Account expired at '%s'.\n", 
199                          nt_time_string(mem_ctx, acct_expiry)));
200                 return NT_STATUS_ACCOUNT_EXPIRED;
201         }
202
203         /* check for immediate expiry "must change at next logon" (but not if this is a password change request) */
204         if ((must_change_time == 0) && !password_change) {
205                 DEBUG(2,("sam_account_ok: Account for user '%s' password must change!.\n",
206                          name_for_logs));
207                 return NT_STATUS_PASSWORD_MUST_CHANGE;
208         }
209
210         /* check for expired password (but not if this is a password change request) */
211         if ((must_change_time < now) && !password_change) {
212                 DEBUG(2,("sam_account_ok: Account for user '%s' password expired!.\n",
213                          name_for_logs));
214                 DEBUG(2,("sam_account_ok: Password expired at '%s' unix time.\n",
215                          nt_time_string(mem_ctx, must_change_time)));
216                 return NT_STATUS_PASSWORD_EXPIRED;
217         }
218
219         /* Test workstation. Workstation list is comma separated. */
220         if (logon_workstation && workstation_list && *workstation_list) {
221                 bool invalid_ws = true;
222                 int i;
223                 const char **workstations = (const char **)str_list_make(mem_ctx, workstation_list, ",");
224                 
225                 for (i = 0; workstations && workstations[i]; i++) {
226                         DEBUG(10,("sam_account_ok: checking for workstation match '%s' and '%s'\n",
227                                   workstations[i], logon_workstation));
228
229                         if (strequal(workstations[i], logon_workstation)) {
230                                 invalid_ws = false;
231                                 break;
232                         }
233                 }
234
235                 talloc_free(workstations);
236
237                 if (invalid_ws) {
238                         return NT_STATUS_INVALID_WORKSTATION;
239                 }
240         }
241         
242         if (!logon_hours_ok(msg, name_for_logs)) {
243                 return NT_STATUS_INVALID_LOGON_HOURS;
244         }
245         
246         if (!allow_domain_trust) {
247                 if (acct_flags & ACB_DOMTRUST) {
248                         DEBUG(2,("sam_account_ok: Domain trust account %s denied by server\n", name_for_logs));
249                         return NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT;
250                 }
251         }
252         if (!(logon_parameters & MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT)) {
253                 if (acct_flags & ACB_SVRTRUST) {
254                         DEBUG(2,("sam_account_ok: Server trust account %s denied by server\n", name_for_logs));
255                         return NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT;
256                 }
257         }
258         if (!(logon_parameters & MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT)) {
259                 /* TODO: this fails with current solaris client. We
260                    need to work with Gordon to work out why */
261                 if (acct_flags & ACB_WSTRUST) {
262                         DEBUG(4,("sam_account_ok: Wksta trust account %s denied by server\n", name_for_logs));
263                         return NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT;
264                 }
265         }
266
267         return NT_STATUS_OK;
268 }
269
270 _PUBLIC_ NTSTATUS authsam_make_user_info_dc(TALLOC_CTX *mem_ctx,
271                                            struct ldb_context *sam_ctx,
272                                            const char *netbios_name,
273                                            const char *domain_name,
274                                            struct ldb_dn *domain_dn, 
275                                            struct ldb_message *msg,
276                                            DATA_BLOB user_sess_key,
277                                            DATA_BLOB lm_sess_key,
278                                            struct auth_user_info_dc **_user_info_dc)
279 {
280         NTSTATUS status;
281         struct auth_user_info_dc *user_info_dc;
282         struct auth_user_info *info;
283         const char *str, *filter;
284         /* SIDs for the account and his primary group */
285         struct dom_sid *account_sid;
286         const char *primary_group_string;
287         const char *primary_group_dn;
288         DATA_BLOB primary_group_blob;
289         /* SID structures for the expanded group memberships */
290         struct dom_sid *sids = NULL;
291         unsigned int num_sids = 0, i;
292         struct dom_sid *domain_sid;
293         TALLOC_CTX *tmp_ctx;
294         struct ldb_message_element *el;
295
296         user_info_dc = talloc(mem_ctx, struct auth_user_info_dc);
297         NT_STATUS_HAVE_NO_MEMORY(user_info_dc);
298
299         tmp_ctx = talloc_new(user_info_dc);
300         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info_dc, user_info_dc);
301
302         sids = talloc_array(user_info_dc, struct dom_sid, 2);
303         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(sids, user_info_dc);
304
305         num_sids = 2;
306
307         account_sid = samdb_result_dom_sid(user_info_dc, msg, "objectSid");
308         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(account_sid, user_info_dc);
309
310         status = dom_sid_split_rid(tmp_ctx, account_sid, &domain_sid, NULL);
311         if (!NT_STATUS_IS_OK(status)) {
312                 talloc_free(user_info_dc);
313                 return status;
314         }
315
316         sids[PRIMARY_USER_SID_INDEX] = *account_sid;
317         sids[PRIMARY_GROUP_SID_INDEX] = *domain_sid;
318         sid_append_rid(&sids[PRIMARY_GROUP_SID_INDEX], ldb_msg_find_attr_as_uint(msg, "primaryGroupID", ~0));
319
320         /* Filter out builtin groups from this token.  We will search
321          * for builtin groups later, and not include them in the PAC
322          * on SamLogon validation info */
323         filter = talloc_asprintf(tmp_ctx, "(&(objectClass=group)(!(groupType:1.2.840.113556.1.4.803:=%u))(groupType:1.2.840.113556.1.4.803:=%u))", GROUP_TYPE_BUILTIN_LOCAL_GROUP, GROUP_TYPE_SECURITY_ENABLED);
324         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(filter, user_info_dc);
325
326         primary_group_string = dom_sid_string(tmp_ctx, &sids[PRIMARY_GROUP_SID_INDEX]);
327         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(primary_group_string, user_info_dc);
328
329         primary_group_dn = talloc_asprintf(tmp_ctx, "<SID=%s>", primary_group_string);
330         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(primary_group_dn, user_info_dc);
331
332         primary_group_blob = data_blob_string_const(primary_group_dn);
333
334         /* Expands the primary group - this function takes in
335          * memberOf-like values, so we fake one up with the
336          * <SID=S-...> format of DN and then let it expand
337          * them, as long as they meet the filter - so only
338          * domain groups, not builtin groups
339          *
340          * The primary group is still treated specially, so we set the
341          * 'only childs' flag to true
342          */
343         status = dsdb_expand_nested_groups(sam_ctx, &primary_group_blob, true, filter,
344                                            user_info_dc, &sids, &num_sids);
345         if (!NT_STATUS_IS_OK(status)) {
346                 talloc_free(user_info_dc);
347                 return status;
348         }
349
350         /* Expands the additional groups */
351         el = ldb_msg_find_element(msg, "memberOf");
352         for (i = 0; el && i < el->num_values; i++) {
353                 /* This function takes in memberOf values and expands
354                  * them, as long as they meet the filter - so only
355                  * domain groups, not builtin groups */
356                 status = dsdb_expand_nested_groups(sam_ctx, &el->values[i], false, filter,
357                                                    user_info_dc, &sids, &num_sids);
358                 if (!NT_STATUS_IS_OK(status)) {
359                         talloc_free(user_info_dc);
360                         return status;
361                 }
362         }
363
364         user_info_dc->sids = sids;
365         user_info_dc->num_sids = num_sids;
366
367         user_info_dc->info = info = talloc_zero(user_info_dc, struct auth_user_info);
368         NT_STATUS_HAVE_NO_MEMORY(user_info_dc->info);
369
370         info->account_name = talloc_steal(info,
371                 ldb_msg_find_attr_as_string(msg, "sAMAccountName", NULL));
372
373         info->domain_name = talloc_strdup(info, domain_name);
374         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->domain_name,
375                 user_info_dc);
376
377         str = ldb_msg_find_attr_as_string(msg, "displayName", "");
378         info->full_name = talloc_strdup(info, str);
379         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->full_name, user_info_dc);
380
381         str = ldb_msg_find_attr_as_string(msg, "scriptPath", "");
382         info->logon_script = talloc_strdup(info, str);
383         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->logon_script,
384                 user_info_dc);
385
386         str = ldb_msg_find_attr_as_string(msg, "profilePath", "");
387         info->profile_path = talloc_strdup(info, str);
388         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->profile_path,
389                 user_info_dc);
390
391         str = ldb_msg_find_attr_as_string(msg, "homeDirectory", "");
392         info->home_directory = talloc_strdup(info, str);
393         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->home_directory,
394                 user_info_dc);
395
396         str = ldb_msg_find_attr_as_string(msg, "homeDrive", "");
397         info->home_drive = talloc_strdup(info, str);
398         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->home_drive, user_info_dc);
399
400         info->logon_server = talloc_strdup(info, netbios_name);
401         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->logon_server,
402                 user_info_dc);
403
404         info->last_logon = samdb_result_nttime(msg, "lastLogon", 0);
405         info->last_logoff = samdb_result_last_logoff(msg);
406         info->acct_expiry = samdb_result_account_expires(msg);
407         info->last_password_change = samdb_result_nttime(msg,
408                 "pwdLastSet", 0);
409         info->allow_password_change
410                 = samdb_result_allow_password_change(sam_ctx, mem_ctx, 
411                         domain_dn, msg, "pwdLastSet");
412         info->force_password_change
413                 = samdb_result_force_password_change(sam_ctx, mem_ctx,
414                         domain_dn, msg);
415         info->logon_count = ldb_msg_find_attr_as_uint(msg, "logonCount", 0);
416         info->bad_password_count = ldb_msg_find_attr_as_uint(msg, "badPwdCount",
417                 0);
418
419         info->acct_flags = samdb_result_acct_flags(sam_ctx, mem_ctx,
420                                                           msg, domain_dn);
421
422         user_info_dc->user_session_key = data_blob_talloc(user_info_dc,
423                                                          user_sess_key.data,
424                                                          user_sess_key.length);
425         if (user_sess_key.data) {
426                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info_dc->user_session_key.data,
427                                                   user_info_dc);
428         }
429         user_info_dc->lm_session_key = data_blob_talloc(user_info_dc,
430                                                        lm_sess_key.data,
431                                                        lm_sess_key.length);
432         if (lm_sess_key.data) {
433                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info_dc->lm_session_key.data,
434                                                   user_info_dc);
435         }
436
437         if (info->acct_flags & ACB_SVRTRUST) {
438                 /* the SID_NT_ENTERPRISE_DCS SID gets added into the
439                    PAC */
440                 user_info_dc->sids = talloc_realloc(user_info_dc,
441                                                    user_info_dc->sids,
442                                                    struct dom_sid,
443                                                    user_info_dc->num_sids+1);
444                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info_dc->sids, user_info_dc);
445                 user_info_dc->sids[user_info_dc->num_sids] = global_sid_Enterprise_DCs;
446                 user_info_dc->num_sids++;
447         }
448
449         if ((info->acct_flags & (ACB_PARTIAL_SECRETS_ACCOUNT | ACB_WSTRUST)) ==
450             (ACB_PARTIAL_SECRETS_ACCOUNT | ACB_WSTRUST)) {
451                 /* the DOMAIN_RID_ENTERPRISE_READONLY_DCS PAC */
452                 user_info_dc->sids = talloc_realloc(user_info_dc,
453                                                    user_info_dc->sids,
454                                                    struct dom_sid,
455                                                    user_info_dc->num_sids+1);
456                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info_dc->sids, user_info_dc);
457                 user_info_dc->sids[user_info_dc->num_sids] = *domain_sid;
458                 sid_append_rid(&user_info_dc->sids[user_info_dc->num_sids],
459                             DOMAIN_RID_ENTERPRISE_READONLY_DCS);
460                 user_info_dc->num_sids++;
461         }
462
463         info->authenticated = true;
464
465         talloc_free(tmp_ctx);
466         *_user_info_dc = user_info_dc;
467
468         return NT_STATUS_OK;
469 }
470
471 NTSTATUS sam_get_results_principal(struct ldb_context *sam_ctx,
472                                    TALLOC_CTX *mem_ctx, const char *principal,
473                                    const char **attrs,
474                                    struct ldb_dn **domain_dn,
475                                    struct ldb_message **msg)
476 {                          
477         struct ldb_dn *user_dn;
478         NTSTATUS nt_status;
479         TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
480         int ret;
481
482         if (!tmp_ctx) {
483                 return NT_STATUS_NO_MEMORY;
484         }
485
486         nt_status = crack_user_principal_name(sam_ctx, tmp_ctx, principal, 
487                                               &user_dn, domain_dn);
488         if (!NT_STATUS_IS_OK(nt_status)) {
489                 talloc_free(tmp_ctx);
490                 return nt_status;
491         }
492         
493         /* pull the user attributes */
494         ret = dsdb_search_one(sam_ctx, tmp_ctx, msg, user_dn,
495                               LDB_SCOPE_BASE, attrs, DSDB_SEARCH_SHOW_EXTENDED_DN, "(objectClass=*)");
496         if (ret != LDB_SUCCESS) {
497                 talloc_free(tmp_ctx);
498                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
499         }
500         talloc_steal(mem_ctx, *msg);
501         talloc_steal(mem_ctx, *domain_dn);
502         talloc_free(tmp_ctx);
503         
504         return NT_STATUS_OK;
505 }
506
507 /* Used in the gensec_gssapi and gensec_krb5 server-side code, where the PAC isn't available, and for tokenGroups in the DSDB stack.
508
509  Supply either a principal or a DN
510 */
511 NTSTATUS authsam_get_user_info_dc_principal(TALLOC_CTX *mem_ctx,
512                                            struct loadparm_context *lp_ctx,
513                                            struct ldb_context *sam_ctx,
514                                            const char *principal,
515                                            struct ldb_dn *user_dn,
516                                            struct auth_user_info_dc **user_info_dc)
517 {
518         NTSTATUS nt_status;
519         DATA_BLOB user_sess_key = data_blob(NULL, 0);
520         DATA_BLOB lm_sess_key = data_blob(NULL, 0);
521
522         struct ldb_message *msg;
523         struct ldb_dn *domain_dn;
524
525         TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
526         if (!tmp_ctx) {
527                 return NT_STATUS_NO_MEMORY;
528         }
529
530         if (principal) {
531                 nt_status = sam_get_results_principal(sam_ctx, tmp_ctx, principal,
532                                                       user_attrs, &domain_dn, &msg);
533                 if (!NT_STATUS_IS_OK(nt_status)) {
534                         talloc_free(tmp_ctx);
535                         return nt_status;
536                 }
537         } else if (user_dn) {
538                 struct dom_sid *user_sid, *domain_sid;
539                 int ret;
540                 /* pull the user attributes */
541                 ret = dsdb_search_one(sam_ctx, tmp_ctx, &msg, user_dn,
542                                       LDB_SCOPE_BASE, user_attrs, DSDB_SEARCH_SHOW_EXTENDED_DN, "(objectClass=*)");
543                 if (ret == LDB_ERR_NO_SUCH_OBJECT) {
544                         talloc_free(tmp_ctx);
545                         return NT_STATUS_NO_SUCH_USER;
546                 } else if (ret != LDB_SUCCESS) {
547                         talloc_free(tmp_ctx);
548                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
549                 }
550
551                 user_sid = samdb_result_dom_sid(msg, msg, "objectSid");
552
553                 nt_status = dom_sid_split_rid(tmp_ctx, user_sid, &domain_sid, NULL);
554                 if (!NT_STATUS_IS_OK(nt_status)) {
555                         return nt_status;
556                 }
557
558                 domain_dn = samdb_search_dn(sam_ctx, mem_ctx, NULL,
559                                           "(&(objectSid=%s)(objectClass=domain))",
560                                             ldap_encode_ndr_dom_sid(tmp_ctx, domain_sid));
561                 if (!domain_dn) {
562                         DEBUG(3, ("authsam_get_user_info_dc_principal: Failed to find domain with: SID %s\n",
563                                   dom_sid_string(tmp_ctx, domain_sid)));
564                         return NT_STATUS_NO_SUCH_USER;
565                 }
566
567         } else {
568                 return NT_STATUS_INVALID_PARAMETER;
569         }
570
571         nt_status = authsam_make_user_info_dc(tmp_ctx, sam_ctx,
572                                              lpcfg_netbios_name(lp_ctx),
573                                              lpcfg_workgroup(lp_ctx),
574                                              domain_dn,
575                                              msg,
576                                              user_sess_key, lm_sess_key,
577                                              user_info_dc);
578         if (!NT_STATUS_IS_OK(nt_status)) {
579                 talloc_free(tmp_ctx);
580                 return nt_status;
581         }
582
583         talloc_steal(mem_ctx, *user_info_dc);
584         talloc_free(tmp_ctx);
585
586         return NT_STATUS_OK;
587 }