2 Unix SMB/CIFS implementation.
3 Samba utility functions
5 Copyright (C) Andrew Tridgell 2004
6 Copyright (C) Volker Lendecke 2004
7 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006
8 Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include "events/events.h"
27 #include "ldb_errors.h"
28 #include "../lib/util/util_ldb.h"
29 #include "../lib/crypto/crypto.h"
30 #include "dsdb/samdb/samdb.h"
31 #include "libcli/security/security.h"
32 #include "librpc/gen_ndr/ndr_security.h"
33 #include "librpc/gen_ndr/ndr_misc.h"
34 #include "../libds/common/flags.h"
35 #include "dsdb/common/proto.h"
36 #include "libcli/ldap/ldap_ndr.h"
37 #include "param/param.h"
38 #include "libcli/auth/libcli_auth.h"
39 #include "librpc/gen_ndr/ndr_drsblobs.h"
42 search the sam for the specified attributes in a specific domain, filter on
43 objectSid being in domain_sid.
45 int samdb_search_domain(struct ldb_context *sam_ldb,
47 struct ldb_dn *basedn,
48 struct ldb_message ***res,
49 const char * const *attrs,
50 const struct dom_sid *domain_sid,
51 const char *format, ...) _PRINTF_ATTRIBUTE(7,8)
57 count = gendb_search_v(sam_ldb, mem_ctx, basedn,
58 res, attrs, format, ap);
64 struct dom_sid *entry_sid;
66 entry_sid = samdb_result_dom_sid(mem_ctx, (*res)[i], "objectSid");
68 if ((entry_sid == NULL) ||
69 (!dom_sid_in_domain(domain_sid, entry_sid))) {
70 /* Delete that entry from the result set */
71 (*res)[i] = (*res)[count-1];
73 talloc_free(entry_sid);
76 talloc_free(entry_sid);
84 search the sam for a single string attribute in exactly 1 record
86 const char *samdb_search_string_v(struct ldb_context *sam_ldb,
88 struct ldb_dn *basedn,
89 const char *attr_name,
90 const char *format, va_list ap) _PRINTF_ATTRIBUTE(5,0)
93 const char *attrs[2] = { NULL, NULL };
94 struct ldb_message **res = NULL;
98 count = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, attrs, format, ap);
100 DEBUG(1,("samdb: search for %s %s not single valued (count=%d)\n",
101 attr_name, format, count));
108 return samdb_result_string(res[0], attr_name, NULL);
112 search the sam for a single string attribute in exactly 1 record
114 const char *samdb_search_string(struct ldb_context *sam_ldb,
116 struct ldb_dn *basedn,
117 const char *attr_name,
118 const char *format, ...) _PRINTF_ATTRIBUTE(5,6)
123 va_start(ap, format);
124 str = samdb_search_string_v(sam_ldb, mem_ctx, basedn, attr_name, format, ap);
130 struct ldb_dn *samdb_search_dn(struct ldb_context *sam_ldb,
132 struct ldb_dn *basedn,
133 const char *format, ...) _PRINTF_ATTRIBUTE(4,5)
137 struct ldb_message **res = NULL;
140 va_start(ap, format);
141 count = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, NULL, format, ap);
144 if (count != 1) return NULL;
146 ret = talloc_steal(mem_ctx, res[0]->dn);
153 search the sam for a dom_sid attribute in exactly 1 record
155 struct dom_sid *samdb_search_dom_sid(struct ldb_context *sam_ldb,
157 struct ldb_dn *basedn,
158 const char *attr_name,
159 const char *format, ...) _PRINTF_ATTRIBUTE(5,6)
163 struct ldb_message **res;
164 const char *attrs[2] = { NULL, NULL };
167 attrs[0] = attr_name;
169 va_start(ap, format);
170 count = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, attrs, format, ap);
173 DEBUG(1,("samdb: search for %s %s not single valued (count=%d)\n",
174 attr_name, format, count));
180 sid = samdb_result_dom_sid(mem_ctx, res[0], attr_name);
186 return the count of the number of records in the sam matching the query
188 int samdb_search_count(struct ldb_context *sam_ldb,
190 struct ldb_dn *basedn,
191 const char *format, ...) _PRINTF_ATTRIBUTE(4,5)
194 struct ldb_message **res;
195 const char * const attrs[] = { NULL };
198 va_start(ap, format);
199 ret = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, attrs, format, ap);
207 search the sam for a single integer attribute in exactly 1 record
209 uint_t samdb_search_uint(struct ldb_context *sam_ldb,
211 uint_t default_value,
212 struct ldb_dn *basedn,
213 const char *attr_name,
214 const char *format, ...) _PRINTF_ATTRIBUTE(6,7)
218 struct ldb_message **res;
219 const char *attrs[2] = { NULL, NULL };
221 attrs[0] = attr_name;
223 va_start(ap, format);
224 count = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, attrs, format, ap);
228 return default_value;
231 return samdb_result_uint(res[0], attr_name, default_value);
235 search the sam for a single signed 64 bit integer attribute in exactly 1 record
237 int64_t samdb_search_int64(struct ldb_context *sam_ldb,
239 int64_t default_value,
240 struct ldb_dn *basedn,
241 const char *attr_name,
242 const char *format, ...) _PRINTF_ATTRIBUTE(6,7)
246 struct ldb_message **res;
247 const char *attrs[2] = { NULL, NULL };
249 attrs[0] = attr_name;
251 va_start(ap, format);
252 count = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, attrs, format, ap);
256 return default_value;
259 return samdb_result_int64(res[0], attr_name, default_value);
263 search the sam for multipe records each giving a single string attribute
264 return the number of matches, or -1 on error
266 int samdb_search_string_multiple(struct ldb_context *sam_ldb,
268 struct ldb_dn *basedn,
270 const char *attr_name,
271 const char *format, ...) _PRINTF_ATTRIBUTE(6,7)
275 const char *attrs[2] = { NULL, NULL };
276 struct ldb_message **res = NULL;
278 attrs[0] = attr_name;
280 va_start(ap, format);
281 count = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, attrs, format, ap);
288 /* make sure its single valued */
289 for (i=0;i<count;i++) {
290 if (res[i]->num_elements != 1) {
291 DEBUG(1,("samdb: search for %s %s not single valued\n",
298 *strs = talloc_array(mem_ctx, const char *, count+1);
304 for (i=0;i<count;i++) {
305 (*strs)[i] = samdb_result_string(res[i], attr_name, NULL);
307 (*strs)[count] = NULL;
313 pull a uint from a result set.
315 uint_t samdb_result_uint(const struct ldb_message *msg, const char *attr, uint_t default_value)
317 return ldb_msg_find_attr_as_uint(msg, attr, default_value);
321 pull a (signed) int64 from a result set.
323 int64_t samdb_result_int64(const struct ldb_message *msg, const char *attr, int64_t default_value)
325 return ldb_msg_find_attr_as_int64(msg, attr, default_value);
329 pull a string from a result set.
331 const char *samdb_result_string(const struct ldb_message *msg, const char *attr,
332 const char *default_value)
334 return ldb_msg_find_attr_as_string(msg, attr, default_value);
337 struct ldb_dn *samdb_result_dn(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const struct ldb_message *msg,
338 const char *attr, struct ldb_dn *default_value)
340 struct ldb_dn *ret_dn = ldb_msg_find_attr_as_dn(ldb, mem_ctx, msg, attr);
342 return default_value;
348 pull a rid from a objectSid in a result set.
350 uint32_t samdb_result_rid_from_sid(TALLOC_CTX *mem_ctx, const struct ldb_message *msg,
351 const char *attr, uint32_t default_value)
356 sid = samdb_result_dom_sid(mem_ctx, msg, attr);
358 return default_value;
360 rid = sid->sub_auths[sid->num_auths-1];
366 pull a dom_sid structure from a objectSid in a result set.
368 struct dom_sid *samdb_result_dom_sid(TALLOC_CTX *mem_ctx, const struct ldb_message *msg,
371 const struct ldb_val *v;
373 enum ndr_err_code ndr_err;
374 v = ldb_msg_find_ldb_val(msg, attr);
378 sid = talloc(mem_ctx, struct dom_sid);
382 ndr_err = ndr_pull_struct_blob(v, sid, NULL, sid,
383 (ndr_pull_flags_fn_t)ndr_pull_dom_sid);
384 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
392 pull a guid structure from a objectGUID in a result set.
394 struct GUID samdb_result_guid(const struct ldb_message *msg, const char *attr)
396 const struct ldb_val *v;
397 enum ndr_err_code ndr_err;
403 v = ldb_msg_find_ldb_val(msg, attr);
406 mem_ctx = talloc_named_const(NULL, 0, "samdb_result_guid");
407 if (!mem_ctx) return guid;
408 ndr_err = ndr_pull_struct_blob(v, mem_ctx, NULL, &guid,
409 (ndr_pull_flags_fn_t)ndr_pull_GUID);
410 talloc_free(mem_ctx);
411 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
419 pull a sid prefix from a objectSid in a result set.
420 this is used to find the domain sid for a user
422 struct dom_sid *samdb_result_sid_prefix(TALLOC_CTX *mem_ctx, const struct ldb_message *msg,
425 struct dom_sid *sid = samdb_result_dom_sid(mem_ctx, msg, attr);
426 if (!sid || sid->num_auths < 1) return NULL;
432 pull a NTTIME in a result set.
434 NTTIME samdb_result_nttime(struct ldb_message *msg, const char *attr, NTTIME default_value)
436 return ldb_msg_find_attr_as_uint64(msg, attr, default_value);
440 * Windows stores 0 for lastLogoff.
441 * But when a MS DC return the lastLogoff (as Logoff Time)
442 * it returns 0x7FFFFFFFFFFFFFFF, not returning this value in this case
443 * cause windows 2008 and newer version to fail for SMB requests
445 NTTIME samdb_result_last_logoff(struct ldb_message *msg)
447 NTTIME ret = ldb_msg_find_attr_as_uint64(msg, "lastLogoff",0);
450 ret = 0x7FFFFFFFFFFFFFFFULL;
456 * Windows uses both 0 and 9223372036854775807 (0x7FFFFFFFFFFFFFFFULL) to
457 * indicate an account doesn't expire.
459 * When Windows initially creates an account, it sets
460 * accountExpires = 9223372036854775807 (0x7FFFFFFFFFFFFFFF). However,
461 * when changing from an account having a specific expiration date to
462 * that account never expiring, it sets accountExpires = 0.
464 * Consolidate that logic here to allow clearer logic for account expiry in
465 * the rest of the code.
467 NTTIME samdb_result_account_expires(struct ldb_message *msg)
469 NTTIME ret = ldb_msg_find_attr_as_uint64(msg, "accountExpires",
473 ret = 0x7FFFFFFFFFFFFFFFULL;
479 pull a uint64_t from a result set.
481 uint64_t samdb_result_uint64(struct ldb_message *msg, const char *attr, uint64_t default_value)
483 return ldb_msg_find_attr_as_uint64(msg, attr, default_value);
488 construct the allow_password_change field from the PwdLastSet attribute and the
489 domain password settings
491 NTTIME samdb_result_allow_password_change(struct ldb_context *sam_ldb,
493 struct ldb_dn *domain_dn,
494 struct ldb_message *msg,
497 uint64_t attr_time = samdb_result_uint64(msg, attr, 0);
500 if (attr_time == 0) {
504 minPwdAge = samdb_search_int64(sam_ldb, mem_ctx, 0, domain_dn, "minPwdAge", NULL);
506 /* yes, this is a -= not a += as minPwdAge is stored as the negative
507 of the number of 100-nano-seconds */
508 attr_time -= minPwdAge;
514 construct the force_password_change field from the PwdLastSet
515 attribute, the userAccountControl and the domain password settings
517 NTTIME samdb_result_force_password_change(struct ldb_context *sam_ldb,
519 struct ldb_dn *domain_dn,
520 struct ldb_message *msg)
522 uint64_t attr_time = samdb_result_uint64(msg, "pwdLastSet", 0);
523 uint32_t userAccountControl = samdb_result_uint64(msg, "userAccountControl", 0);
526 /* Machine accounts don't expire, and there is a flag for 'no expiry' */
527 if (!(userAccountControl & UF_NORMAL_ACCOUNT)
528 || (userAccountControl & UF_DONT_EXPIRE_PASSWD)) {
529 return 0x7FFFFFFFFFFFFFFFULL;
532 if (attr_time == 0) {
536 maxPwdAge = samdb_search_int64(sam_ldb, mem_ctx, 0, domain_dn, "maxPwdAge", NULL);
537 if (maxPwdAge == 0) {
538 return 0x7FFFFFFFFFFFFFFFULL;
540 attr_time -= maxPwdAge;
547 pull a samr_Password structutre from a result set.
549 struct samr_Password *samdb_result_hash(TALLOC_CTX *mem_ctx, const struct ldb_message *msg, const char *attr)
551 struct samr_Password *hash = NULL;
552 const struct ldb_val *val = ldb_msg_find_ldb_val(msg, attr);
553 if (val && (val->length >= sizeof(hash->hash))) {
554 hash = talloc(mem_ctx, struct samr_Password);
555 memcpy(hash->hash, val->data, MIN(val->length, sizeof(hash->hash)));
561 pull an array of samr_Password structutres from a result set.
563 uint_t samdb_result_hashes(TALLOC_CTX *mem_ctx, const struct ldb_message *msg,
564 const char *attr, struct samr_Password **hashes)
567 const struct ldb_val *val = ldb_msg_find_ldb_val(msg, attr);
574 count = val->length / 16;
579 *hashes = talloc_array(mem_ctx, struct samr_Password, count);
584 for (i=0;i<count;i++) {
585 memcpy((*hashes)[i].hash, (i*16)+(char *)val->data, 16);
591 NTSTATUS samdb_result_passwords(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx, struct ldb_message *msg,
592 struct samr_Password **lm_pwd, struct samr_Password **nt_pwd)
594 struct samr_Password *lmPwdHash, *ntPwdHash;
597 num_nt = samdb_result_hashes(mem_ctx, msg, "unicodePwd", &ntPwdHash);
600 } else if (num_nt > 1) {
601 return NT_STATUS_INTERNAL_DB_CORRUPTION;
603 *nt_pwd = &ntPwdHash[0];
607 /* Ensure that if we have turned off LM
608 * authentication, that we never use the LM hash, even
610 if (lp_lanman_auth(lp_ctx)) {
612 num_lm = samdb_result_hashes(mem_ctx, msg, "dBCSPwd", &lmPwdHash);
615 } else if (num_lm > 1) {
616 return NT_STATUS_INTERNAL_DB_CORRUPTION;
618 *lm_pwd = &lmPwdHash[0];
628 pull a samr_LogonHours structutre from a result set.
630 struct samr_LogonHours samdb_result_logon_hours(TALLOC_CTX *mem_ctx, struct ldb_message *msg, const char *attr)
632 struct samr_LogonHours hours;
633 const int units_per_week = 168;
634 const struct ldb_val *val = ldb_msg_find_ldb_val(msg, attr);
636 hours.bits = talloc_array(mem_ctx, uint8_t, units_per_week);
640 hours.units_per_week = units_per_week;
641 memset(hours.bits, 0xFF, units_per_week);
643 memcpy(hours.bits, val->data, MIN(val->length, units_per_week));
649 pull a set of account_flags from a result set.
651 This requires that the attributes:
656 uint32_t samdb_result_acct_flags(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
657 struct ldb_message *msg, struct ldb_dn *domain_dn)
659 uint32_t userAccountControl = ldb_msg_find_attr_as_uint(msg, "userAccountControl", 0);
660 uint32_t acct_flags = ds_uf2acb(userAccountControl);
661 NTTIME must_change_time;
664 must_change_time = samdb_result_force_password_change(sam_ctx, mem_ctx,
667 /* Test account expire time */
668 unix_to_nt_time(&now, time(NULL));
669 /* check for expired password */
670 if (must_change_time < now) {
671 acct_flags |= ACB_PW_EXPIRED;
676 struct lsa_BinaryString samdb_result_parameters(TALLOC_CTX *mem_ctx,
677 struct ldb_message *msg,
680 struct lsa_BinaryString s;
681 const struct ldb_val *val = ldb_msg_find_ldb_val(msg, attr);
689 s.array = talloc_array(mem_ctx, uint16_t, val->length/2);
693 s.length = s.size = val->length/2;
694 memcpy(s.array, val->data, val->length);
699 /* Find an attribute, with a particular value */
701 /* The current callers of this function expect a very specific
702 * behaviour: In particular, objectClass subclass equivilance is not
703 * wanted. This means that we should not lookup the schema for the
704 * comparison function */
705 struct ldb_message_element *samdb_find_attribute(struct ldb_context *ldb,
706 const struct ldb_message *msg,
707 const char *name, const char *value)
710 struct ldb_message_element *el = ldb_msg_find_element(msg, name);
716 for (i=0;i<el->num_values;i++) {
717 if (ldb_attr_cmp(value, (char *)el->values[i].data) == 0) {
725 int samdb_find_or_add_value(struct ldb_context *ldb, struct ldb_message *msg, const char *name, const char *set_value)
727 if (samdb_find_attribute(ldb, msg, name, set_value) == NULL) {
728 return samdb_msg_add_string(ldb, msg, msg, name, set_value);
733 int samdb_find_or_add_attribute(struct ldb_context *ldb, struct ldb_message *msg, const char *name, const char *set_value)
735 struct ldb_message_element *el;
737 el = ldb_msg_find_element(msg, name);
742 return samdb_msg_add_string(ldb, msg, msg, name, set_value);
748 add a string element to a message
750 int samdb_msg_add_string(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
751 const char *attr_name, const char *str)
753 char *s = talloc_strdup(mem_ctx, str);
754 char *a = talloc_strdup(mem_ctx, attr_name);
755 if (s == NULL || a == NULL) {
756 return LDB_ERR_OPERATIONS_ERROR;
758 return ldb_msg_add_string(msg, a, s);
762 add a dom_sid element to a message
764 int samdb_msg_add_dom_sid(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
765 const char *attr_name, struct dom_sid *sid)
768 enum ndr_err_code ndr_err;
770 ndr_err = ndr_push_struct_blob(&v, mem_ctx,
771 lp_iconv_convenience(ldb_get_opaque(sam_ldb, "loadparm")),
773 (ndr_push_flags_fn_t)ndr_push_dom_sid);
774 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
777 return ldb_msg_add_value(msg, attr_name, &v, NULL);
782 add a delete element operation to a message
784 int samdb_msg_add_delete(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
785 const char *attr_name)
787 /* we use an empty replace rather than a delete, as it allows for
788 samdb_replace() to be used everywhere */
789 return ldb_msg_add_empty(msg, attr_name, LDB_FLAG_MOD_REPLACE, NULL);
793 add a add attribute value to a message
795 int samdb_msg_add_addval(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
796 const char *attr_name, const char *value)
798 struct ldb_message_element *el;
801 a = talloc_strdup(mem_ctx, attr_name);
804 v = talloc_strdup(mem_ctx, value);
807 ret = ldb_msg_add_string(msg, a, v);
810 el = ldb_msg_find_element(msg, a);
813 el->flags = LDB_FLAG_MOD_ADD;
818 add a delete attribute value to a message
820 int samdb_msg_add_delval(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
821 const char *attr_name, const char *value)
823 struct ldb_message_element *el;
826 a = talloc_strdup(mem_ctx, attr_name);
829 v = talloc_strdup(mem_ctx, value);
832 ret = ldb_msg_add_string(msg, a, v);
835 el = ldb_msg_find_element(msg, a);
838 el->flags = LDB_FLAG_MOD_DELETE;
843 add a int element to a message
845 int samdb_msg_add_int(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
846 const char *attr_name, int v)
848 const char *s = talloc_asprintf(mem_ctx, "%d", v);
849 return samdb_msg_add_string(sam_ldb, mem_ctx, msg, attr_name, s);
853 add a uint_t element to a message
855 int samdb_msg_add_uint(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
856 const char *attr_name, uint_t v)
858 const char *s = talloc_asprintf(mem_ctx, "%u", v);
859 return samdb_msg_add_string(sam_ldb, mem_ctx, msg, attr_name, s);
863 add a (signed) int64_t element to a message
865 int samdb_msg_add_int64(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
866 const char *attr_name, int64_t v)
868 const char *s = talloc_asprintf(mem_ctx, "%lld", (long long)v);
869 return samdb_msg_add_string(sam_ldb, mem_ctx, msg, attr_name, s);
873 add a uint64_t element to a message
875 int samdb_msg_add_uint64(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
876 const char *attr_name, uint64_t v)
878 const char *s = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)v);
879 return samdb_msg_add_string(sam_ldb, mem_ctx, msg, attr_name, s);
883 add a samr_Password element to a message
885 int samdb_msg_add_hash(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
886 const char *attr_name, struct samr_Password *hash)
889 val.data = talloc_memdup(mem_ctx, hash->hash, 16);
894 return ldb_msg_add_value(msg, attr_name, &val, NULL);
898 add a samr_Password array to a message
900 int samdb_msg_add_hashes(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
901 const char *attr_name, struct samr_Password *hashes, uint_t count)
905 val.data = talloc_array_size(mem_ctx, 16, count);
906 val.length = count*16;
910 for (i=0;i<count;i++) {
911 memcpy(i*16 + (char *)val.data, hashes[i].hash, 16);
913 return ldb_msg_add_value(msg, attr_name, &val, NULL);
917 add a acct_flags element to a message
919 int samdb_msg_add_acct_flags(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
920 const char *attr_name, uint32_t v)
922 return samdb_msg_add_uint(sam_ldb, mem_ctx, msg, attr_name, ds_acb2uf(v));
926 add a logon_hours element to a message
928 int samdb_msg_add_logon_hours(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
929 const char *attr_name, struct samr_LogonHours *hours)
932 val.length = hours->units_per_week / 8;
933 val.data = hours->bits;
934 return ldb_msg_add_value(msg, attr_name, &val, NULL);
938 add a parameters element to a message
940 int samdb_msg_add_parameters(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
941 const char *attr_name, struct lsa_BinaryString *parameters)
944 val.length = parameters->length * 2;
945 val.data = (uint8_t *)parameters->array;
946 return ldb_msg_add_value(msg, attr_name, &val, NULL);
949 add a general value element to a message
951 int samdb_msg_add_value(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
952 const char *attr_name, const struct ldb_val *val)
954 return ldb_msg_add_value(msg, attr_name, val, NULL);
958 sets a general value element to a message
960 int samdb_msg_set_value(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
961 const char *attr_name, const struct ldb_val *val)
963 struct ldb_message_element *el;
965 el = ldb_msg_find_element(msg, attr_name);
969 return ldb_msg_add_value(msg, attr_name, val, NULL);
973 set a string element in a message
975 int samdb_msg_set_string(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
976 const char *attr_name, const char *str)
978 struct ldb_message_element *el;
980 el = ldb_msg_find_element(msg, attr_name);
984 return samdb_msg_add_string(sam_ldb, mem_ctx, msg, attr_name, str);
988 replace elements in a record
990 int samdb_replace(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg)
994 /* mark all the message elements as LDB_FLAG_MOD_REPLACE */
995 for (i=0;i<msg->num_elements;i++) {
996 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
999 /* modify the samdb record */
1000 return ldb_modify(sam_ldb, msg);
1004 return a default security descriptor
1006 struct security_descriptor *samdb_default_security_descriptor(TALLOC_CTX *mem_ctx)
1008 struct security_descriptor *sd;
1010 sd = security_descriptor_initialise(mem_ctx);
1015 struct ldb_dn *samdb_base_dn(struct ldb_context *sam_ctx)
1017 return ldb_get_default_basedn(sam_ctx);
1020 struct ldb_dn *samdb_config_dn(struct ldb_context *sam_ctx)
1022 return ldb_get_config_basedn(sam_ctx);
1025 struct ldb_dn *samdb_schema_dn(struct ldb_context *sam_ctx)
1027 return ldb_get_schema_basedn(sam_ctx);
1030 struct ldb_dn *samdb_root_dn(struct ldb_context *sam_ctx)
1032 return ldb_get_root_basedn(sam_ctx);
1035 struct ldb_dn *samdb_partitions_dn(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx)
1037 struct ldb_dn *new_dn;
1039 new_dn = ldb_dn_copy(mem_ctx, samdb_config_dn(sam_ctx));
1040 if ( ! ldb_dn_add_child_fmt(new_dn, "CN=Partitions")) {
1041 talloc_free(new_dn);
1047 struct ldb_dn *samdb_sites_dn(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx)
1049 struct ldb_dn *new_dn;
1051 new_dn = ldb_dn_copy(mem_ctx, samdb_config_dn(sam_ctx));
1052 if ( ! ldb_dn_add_child_fmt(new_dn, "CN=Sites")) {
1053 talloc_free(new_dn);
1060 work out the domain sid for the current open ldb
1062 const struct dom_sid *samdb_domain_sid(struct ldb_context *ldb)
1064 TALLOC_CTX *tmp_ctx;
1065 const struct dom_sid *domain_sid;
1066 const char *attrs[] = {
1070 struct ldb_result *res;
1073 /* see if we have a cached copy */
1074 domain_sid = (struct dom_sid *)ldb_get_opaque(ldb, "cache.domain_sid");
1079 tmp_ctx = talloc_new(ldb);
1080 if (tmp_ctx == NULL) {
1084 ret = ldb_search(ldb, tmp_ctx, &res, ldb_get_default_basedn(ldb), LDB_SCOPE_BASE, attrs, "objectSid=*");
1086 if (ret != LDB_SUCCESS) {
1090 if (res->count != 1) {
1094 domain_sid = samdb_result_dom_sid(tmp_ctx, res->msgs[0], "objectSid");
1095 if (domain_sid == NULL) {
1099 /* cache the domain_sid in the ldb */
1100 if (ldb_set_opaque(ldb, "cache.domain_sid", discard_const_p(struct dom_sid, domain_sid)) != LDB_SUCCESS) {
1104 talloc_steal(ldb, domain_sid);
1105 talloc_free(tmp_ctx);
1110 DEBUG(1,("Failed to find domain_sid for open ldb\n"));
1111 talloc_free(tmp_ctx);
1115 bool samdb_set_domain_sid(struct ldb_context *ldb, const struct dom_sid *dom_sid_in)
1117 TALLOC_CTX *tmp_ctx;
1118 struct dom_sid *dom_sid_new;
1119 struct dom_sid *dom_sid_old;
1121 /* see if we have a cached copy */
1122 dom_sid_old = talloc_get_type(ldb_get_opaque(ldb,
1123 "cache.domain_sid"), struct dom_sid);
1125 tmp_ctx = talloc_new(ldb);
1126 if (tmp_ctx == NULL) {
1130 dom_sid_new = dom_sid_dup(tmp_ctx, dom_sid_in);
1135 /* cache the domain_sid in the ldb */
1136 if (ldb_set_opaque(ldb, "cache.domain_sid", dom_sid_new) != LDB_SUCCESS) {
1140 talloc_steal(ldb, dom_sid_new);
1141 talloc_free(tmp_ctx);
1142 talloc_free(dom_sid_old);
1147 DEBUG(1,("Failed to set our own cached domain SID in the ldb!\n"));
1148 talloc_free(tmp_ctx);
1152 /* Obtain the short name of the flexible single master operator
1153 * (FSMO), such as the PDC Emulator */
1154 const char *samdb_result_fsmo_name(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const struct ldb_message *msg,
1157 /* Format is cn=NTDS Settings,cn=<NETBIOS name of FSMO>,.... */
1158 struct ldb_dn *fsmo_dn = ldb_msg_find_attr_as_dn(ldb, mem_ctx, msg, attr);
1159 const struct ldb_val *val = ldb_dn_get_component_val(fsmo_dn, 1);
1160 const char *name = ldb_dn_get_component_name(fsmo_dn, 1);
1162 if (!name || (ldb_attr_cmp(name, "cn") != 0)) {
1163 /* Ensure this matches the format. This gives us a
1164 * bit more confidence that a 'cn' value will be a
1169 return (char *)val->data;
1175 work out the ntds settings dn for the current open ldb
1177 struct ldb_dn *samdb_ntds_settings_dn(struct ldb_context *ldb)
1179 TALLOC_CTX *tmp_ctx;
1180 const char *root_attrs[] = { "dsServiceName", NULL };
1182 struct ldb_result *root_res;
1183 struct ldb_dn *settings_dn;
1185 /* see if we have a cached copy */
1186 settings_dn = (struct ldb_dn *)ldb_get_opaque(ldb, "cache.settings_dn");
1191 tmp_ctx = talloc_new(ldb);
1192 if (tmp_ctx == NULL) {
1196 ret = ldb_search(ldb, tmp_ctx, &root_res, ldb_dn_new(tmp_ctx, ldb, ""), LDB_SCOPE_BASE, root_attrs, NULL);
1198 DEBUG(1,("Searching for dsServiceName in rootDSE failed: %s\n",
1199 ldb_errstring(ldb)));
1203 if (root_res->count != 1) {
1207 settings_dn = ldb_msg_find_attr_as_dn(ldb, tmp_ctx, root_res->msgs[0], "dsServiceName");
1209 /* cache the domain_sid in the ldb */
1210 if (ldb_set_opaque(ldb, "cache.settings_dn", settings_dn) != LDB_SUCCESS) {
1214 talloc_steal(ldb, settings_dn);
1215 talloc_free(tmp_ctx);
1220 DEBUG(1,("Failed to find our own NTDS Settings DN in the ldb!\n"));
1221 talloc_free(tmp_ctx);
1226 work out the ntds settings invocationId for the current open ldb
1228 const struct GUID *samdb_ntds_invocation_id(struct ldb_context *ldb)
1230 TALLOC_CTX *tmp_ctx;
1231 const char *attrs[] = { "invocationId", NULL };
1233 struct ldb_result *res;
1234 struct GUID *invocation_id;
1236 /* see if we have a cached copy */
1237 invocation_id = (struct GUID *)ldb_get_opaque(ldb, "cache.invocation_id");
1238 if (invocation_id) {
1239 return invocation_id;
1242 tmp_ctx = talloc_new(ldb);
1243 if (tmp_ctx == NULL) {
1247 ret = ldb_search(ldb, tmp_ctx, &res, samdb_ntds_settings_dn(ldb), LDB_SCOPE_BASE, attrs, NULL);
1252 if (res->count != 1) {
1256 invocation_id = talloc(tmp_ctx, struct GUID);
1257 if (!invocation_id) {
1261 *invocation_id = samdb_result_guid(res->msgs[0], "invocationId");
1263 /* cache the domain_sid in the ldb */
1264 if (ldb_set_opaque(ldb, "cache.invocation_id", invocation_id) != LDB_SUCCESS) {
1268 talloc_steal(ldb, invocation_id);
1269 talloc_free(tmp_ctx);
1271 return invocation_id;
1274 DEBUG(1,("Failed to find our own NTDS Settings invocationId in the ldb!\n"));
1275 talloc_free(tmp_ctx);
1279 bool samdb_set_ntds_invocation_id(struct ldb_context *ldb, const struct GUID *invocation_id_in)
1281 TALLOC_CTX *tmp_ctx;
1282 struct GUID *invocation_id_new;
1283 struct GUID *invocation_id_old;
1285 /* see if we have a cached copy */
1286 invocation_id_old = (struct GUID *)ldb_get_opaque(ldb,
1287 "cache.invocation_id");
1289 tmp_ctx = talloc_new(ldb);
1290 if (tmp_ctx == NULL) {
1294 invocation_id_new = talloc(tmp_ctx, struct GUID);
1295 if (!invocation_id_new) {
1299 *invocation_id_new = *invocation_id_in;
1301 /* cache the domain_sid in the ldb */
1302 if (ldb_set_opaque(ldb, "cache.invocation_id", invocation_id_new) != LDB_SUCCESS) {
1306 talloc_steal(ldb, invocation_id_new);
1307 talloc_free(tmp_ctx);
1308 talloc_free(invocation_id_old);
1313 DEBUG(1,("Failed to set our own cached invocationId in the ldb!\n"));
1314 talloc_free(tmp_ctx);
1319 work out the ntds settings objectGUID for the current open ldb
1321 const struct GUID *samdb_ntds_objectGUID(struct ldb_context *ldb)
1323 TALLOC_CTX *tmp_ctx;
1324 const char *attrs[] = { "objectGUID", NULL };
1326 struct ldb_result *res;
1327 struct GUID *ntds_guid;
1329 /* see if we have a cached copy */
1330 ntds_guid = (struct GUID *)ldb_get_opaque(ldb, "cache.ntds_guid");
1335 tmp_ctx = talloc_new(ldb);
1336 if (tmp_ctx == NULL) {
1340 ret = ldb_search(ldb, tmp_ctx, &res, samdb_ntds_settings_dn(ldb), LDB_SCOPE_BASE, attrs, NULL);
1345 if (res->count != 1) {
1349 ntds_guid = talloc(tmp_ctx, struct GUID);
1354 *ntds_guid = samdb_result_guid(res->msgs[0], "objectGUID");
1356 /* cache the domain_sid in the ldb */
1357 if (ldb_set_opaque(ldb, "cache.ntds_guid", ntds_guid) != LDB_SUCCESS) {
1361 talloc_steal(ldb, ntds_guid);
1362 talloc_free(tmp_ctx);
1367 DEBUG(1,("Failed to find our own NTDS Settings objectGUID in the ldb!\n"));
1368 talloc_free(tmp_ctx);
1372 bool samdb_set_ntds_objectGUID(struct ldb_context *ldb, const struct GUID *ntds_guid_in)
1374 TALLOC_CTX *tmp_ctx;
1375 struct GUID *ntds_guid_new;
1376 struct GUID *ntds_guid_old;
1378 /* see if we have a cached copy */
1379 ntds_guid_old = (struct GUID *)ldb_get_opaque(ldb, "cache.ntds_guid");
1381 tmp_ctx = talloc_new(ldb);
1382 if (tmp_ctx == NULL) {
1386 ntds_guid_new = talloc(tmp_ctx, struct GUID);
1387 if (!ntds_guid_new) {
1391 *ntds_guid_new = *ntds_guid_in;
1393 /* cache the domain_sid in the ldb */
1394 if (ldb_set_opaque(ldb, "cache.ntds_guid", ntds_guid_new) != LDB_SUCCESS) {
1398 talloc_steal(ldb, ntds_guid_new);
1399 talloc_free(tmp_ctx);
1400 talloc_free(ntds_guid_old);
1405 DEBUG(1,("Failed to set our own cached invocationId in the ldb!\n"));
1406 talloc_free(tmp_ctx);
1411 work out the server dn for the current open ldb
1413 struct ldb_dn *samdb_server_dn(struct ldb_context *ldb, TALLOC_CTX *mem_ctx)
1415 return ldb_dn_get_parent(mem_ctx, samdb_ntds_settings_dn(ldb));
1419 work out the server dn for the current open ldb
1421 struct ldb_dn *samdb_server_site_dn(struct ldb_context *ldb, TALLOC_CTX *mem_ctx)
1423 struct ldb_dn *server_dn;
1424 struct ldb_dn *server_site_dn;
1426 server_dn = samdb_server_dn(ldb, mem_ctx);
1427 if (!server_dn) return NULL;
1429 server_site_dn = ldb_dn_get_parent(mem_ctx, server_dn);
1431 talloc_free(server_dn);
1432 return server_site_dn;
1436 work out if we are the PDC for the domain of the current open ldb
1438 bool samdb_is_pdc(struct ldb_context *ldb)
1440 const char *dom_attrs[] = { "fSMORoleOwner", NULL };
1442 struct ldb_result *dom_res;
1443 TALLOC_CTX *tmp_ctx;
1447 tmp_ctx = talloc_new(ldb);
1448 if (tmp_ctx == NULL) {
1449 DEBUG(1, ("talloc_new failed in samdb_is_pdc"));
1453 ret = ldb_search(ldb, tmp_ctx, &dom_res, ldb_get_default_basedn(ldb), LDB_SCOPE_BASE, dom_attrs, NULL);
1455 DEBUG(1,("Searching for fSMORoleOwner in %s failed: %s\n",
1456 ldb_dn_get_linearized(ldb_get_default_basedn(ldb)),
1457 ldb_errstring(ldb)));
1460 if (dom_res->count != 1) {
1464 pdc = ldb_msg_find_attr_as_dn(ldb, tmp_ctx, dom_res->msgs[0], "fSMORoleOwner");
1466 if (ldb_dn_compare(samdb_ntds_settings_dn(ldb), pdc) == 0) {
1472 talloc_free(tmp_ctx);
1477 DEBUG(1,("Failed to find if we are the PDC for this ldb\n"));
1478 talloc_free(tmp_ctx);
1483 work out if we are a Global Catalog server for the domain of the current open ldb
1485 bool samdb_is_gc(struct ldb_context *ldb)
1487 const char *attrs[] = { "options", NULL };
1489 struct ldb_result *res;
1490 TALLOC_CTX *tmp_ctx;
1492 tmp_ctx = talloc_new(ldb);
1493 if (tmp_ctx == NULL) {
1494 DEBUG(1, ("talloc_new failed in samdb_is_pdc"));
1498 /* Query cn=ntds settings,.... */
1499 ret = ldb_search(ldb, tmp_ctx, &res, samdb_ntds_settings_dn(ldb), LDB_SCOPE_BASE, attrs, NULL);
1501 talloc_free(tmp_ctx);
1504 if (res->count != 1) {
1505 talloc_free(tmp_ctx);
1509 options = ldb_msg_find_attr_as_int(res->msgs[0], "options", 0);
1510 talloc_free(tmp_ctx);
1512 /* if options attribute has the 0x00000001 flag set, then enable the global catlog */
1513 if (options & 0x000000001) {
1519 /* Find a domain object in the parents of a particular DN. */
1520 int samdb_search_for_parent_domain(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, struct ldb_dn *dn,
1521 struct ldb_dn **parent_dn, const char **errstring)
1523 TALLOC_CTX *local_ctx;
1524 struct ldb_dn *sdn = dn;
1525 struct ldb_result *res = NULL;
1527 const char *attrs[] = { NULL };
1529 local_ctx = talloc_new(mem_ctx);
1530 if (local_ctx == NULL) return LDB_ERR_OPERATIONS_ERROR;
1532 while ((sdn = ldb_dn_get_parent(local_ctx, sdn))) {
1533 ret = ldb_search(ldb, local_ctx, &res, sdn, LDB_SCOPE_BASE, attrs,
1534 "(|(|(objectClass=domain)(objectClass=builtinDomain))(objectClass=samba4LocalDomain))");
1535 if (ret == LDB_SUCCESS) {
1536 if (res->count == 1) {
1544 if (ret != LDB_SUCCESS) {
1545 *errstring = talloc_asprintf(mem_ctx, "Error searching for parent domain of %s, failed searching for %s: %s",
1546 ldb_dn_get_linearized(dn),
1547 ldb_dn_get_linearized(sdn),
1548 ldb_errstring(ldb));
1549 talloc_free(local_ctx);
1552 if (res->count != 1) {
1553 *errstring = talloc_asprintf(mem_ctx, "Invalid dn (%s), not child of a domain object",
1554 ldb_dn_get_linearized(dn));
1555 talloc_free(local_ctx);
1556 return LDB_ERR_CONSTRAINT_VIOLATION;
1559 *parent_dn = talloc_steal(mem_ctx, res->msgs[0]->dn);
1560 talloc_free(local_ctx);
1566 set the user password using plaintext, obeying any user or domain
1567 password restrictions
1569 note that this function doesn't actually store the result in the
1570 database, it just fills in the "mod" structure with ldb modify
1571 elements to setup the correct change when samdb_replace() is
1572 called. This allows the caller to combine the change with other
1573 changes (as is needed by some of the set user info levels)
1575 The caller should probably have a transaction wrapping this
1577 NTSTATUS samdb_set_password(struct ldb_context *ctx, TALLOC_CTX *mem_ctx,
1578 struct ldb_dn *user_dn,
1579 struct ldb_dn *domain_dn,
1580 struct ldb_message *mod,
1581 const DATA_BLOB *new_password,
1582 struct samr_Password *param_lmNewHash,
1583 struct samr_Password *param_ntNewHash,
1585 enum samr_RejectReason *reject_reason,
1586 struct samr_DomInfo1 **_dominfo)
1588 const char * const user_attrs[] = { "userAccountControl", "lmPwdHistory",
1590 "dBCSPwd", "unicodePwd",
1592 "pwdLastSet", NULL };
1593 const char * const domain_attrs[] = { "pwdProperties", "pwdHistoryLength",
1594 "maxPwdAge", "minPwdAge",
1595 "minPwdLength", NULL };
1598 uint_t minPwdLength, pwdProperties, pwdHistoryLength;
1599 uint_t userAccountControl;
1600 struct samr_Password *sambaLMPwdHistory, *sambaNTPwdHistory,
1601 *lmPwdHash, *ntPwdHash, *lmNewHash, *ntNewHash;
1602 struct samr_Password local_lmNewHash, local_ntNewHash;
1603 int sambaLMPwdHistory_len, sambaNTPwdHistory_len;
1604 struct dom_sid *domain_sid;
1605 struct ldb_message **res;
1608 time_t now = time(NULL);
1612 /* we need to know the time to compute password age */
1613 unix_to_nt_time(&now_nt, now);
1615 /* pull all the user parameters */
1616 count = gendb_search_dn(ctx, mem_ctx, user_dn, &res, user_attrs);
1618 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1620 userAccountControl = samdb_result_uint(res[0], "userAccountControl", 0);
1621 sambaLMPwdHistory_len = samdb_result_hashes(mem_ctx, res[0],
1622 "lmPwdHistory", &sambaLMPwdHistory);
1623 sambaNTPwdHistory_len = samdb_result_hashes(mem_ctx, res[0],
1624 "ntPwdHistory", &sambaNTPwdHistory);
1625 lmPwdHash = samdb_result_hash(mem_ctx, res[0], "dBCSPwd");
1626 ntPwdHash = samdb_result_hash(mem_ctx, res[0], "unicodePwd");
1627 pwdLastSet = samdb_result_uint64(res[0], "pwdLastSet", 0);
1629 /* Copy parameters */
1630 lmNewHash = param_lmNewHash;
1631 ntNewHash = param_ntNewHash;
1633 /* Only non-trust accounts have restrictions (possibly this
1634 * test is the wrong way around, but I like to be restrictive
1636 restrictions = !(userAccountControl & (UF_INTERDOMAIN_TRUST_ACCOUNT
1637 |UF_WORKSTATION_TRUST_ACCOUNT
1638 |UF_SERVER_TRUST_ACCOUNT));
1641 /* pull the domain parameters */
1642 count = gendb_search_dn(ctx, mem_ctx, domain_dn, &res, domain_attrs);
1644 DEBUG(2, ("samdb_set_password: Domain DN %s is invalid, for user %s\n",
1645 ldb_dn_get_linearized(domain_dn),
1646 ldb_dn_get_linearized(user_dn)));
1647 return NT_STATUS_NO_SUCH_DOMAIN;
1650 /* work out the domain sid, and pull the domain from there */
1651 domain_sid = samdb_result_sid_prefix(mem_ctx, res[0], "objectSid");
1652 if (domain_sid == NULL) {
1653 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1656 count = gendb_search(ctx, mem_ctx, NULL, &res, domain_attrs,
1658 ldap_encode_ndr_dom_sid(mem_ctx, domain_sid));
1660 DEBUG(2, ("samdb_set_password: Could not find domain to match SID: %s, for user %s\n",
1661 dom_sid_string(mem_ctx, domain_sid),
1662 ldb_dn_get_linearized(user_dn)));
1663 return NT_STATUS_NO_SUCH_DOMAIN;
1667 pwdProperties = samdb_result_uint(res[0], "pwdProperties", 0);
1668 pwdHistoryLength = samdb_result_uint(res[0], "pwdHistoryLength", 0);
1669 minPwdLength = samdb_result_uint(res[0], "minPwdLength", 0);
1670 minPwdAge = samdb_result_int64(res[0], "minPwdAge", 0);
1672 if (userAccountControl & UF_PASSWD_NOTREQD) {
1673 /* see [MS-ADTS] 2.2.15 */
1678 struct samr_DomInfo1 *dominfo;
1679 /* on failure we need to fill in the reject reasons */
1680 dominfo = talloc(mem_ctx, struct samr_DomInfo1);
1681 if (dominfo == NULL) {
1682 return NT_STATUS_NO_MEMORY;
1684 dominfo->min_password_length = minPwdLength;
1685 dominfo->password_properties = pwdProperties;
1686 dominfo->password_history_length = pwdHistoryLength;
1687 dominfo->max_password_age = minPwdAge;
1688 dominfo->min_password_age = minPwdAge;
1689 *_dominfo = dominfo;
1692 if (restrictions && new_password) {
1695 /* check the various password restrictions */
1696 if (restrictions && minPwdLength > utf16_len_n(new_password->data, new_password->length) / 2) {
1697 if (reject_reason) {
1698 *reject_reason = SAMR_REJECT_TOO_SHORT;
1700 return NT_STATUS_PASSWORD_RESTRICTION;
1703 /* Create the NT hash */
1704 mdfour(local_ntNewHash.hash, new_password->data, new_password->length);
1706 ntNewHash = &local_ntNewHash;
1708 /* Only check complexity if we can convert it at all. Assuming unconvertable passwords are 'strong' */
1709 if (convert_string_talloc_convenience(mem_ctx,
1710 lp_iconv_convenience(ldb_get_opaque(ctx, "loadparm")),
1712 new_password->data, new_password->length,
1713 (void **)&new_pass, NULL, false)) {
1715 /* possibly check password complexity */
1716 if (restrictions && (pwdProperties & DOMAIN_PASSWORD_COMPLEX) &&
1717 !check_password_quality(new_pass)) {
1718 if (reject_reason) {
1719 *reject_reason = SAMR_REJECT_COMPLEXITY;
1721 return NT_STATUS_PASSWORD_RESTRICTION;
1724 /* compute the new lm hashes (for checking history - case insenitivly!) */
1725 if (E_deshash(new_pass, local_lmNewHash.hash)) {
1726 lmNewHash = &local_lmNewHash;
1731 if (restrictions && user_change) {
1732 /* are all password changes disallowed? */
1733 if (pwdProperties & DOMAIN_REFUSE_PASSWORD_CHANGE) {
1734 if (reject_reason) {
1735 *reject_reason = SAMR_REJECT_OTHER;
1737 return NT_STATUS_PASSWORD_RESTRICTION;
1740 /* can this user change password? */
1741 if (userAccountControl & UF_PASSWD_CANT_CHANGE) {
1742 if (reject_reason) {
1743 *reject_reason = SAMR_REJECT_OTHER;
1745 return NT_STATUS_PASSWORD_RESTRICTION;
1748 /* yes, this is a minus. The ages are in negative 100nsec units! */
1749 if (pwdLastSet - minPwdAge > now_nt) {
1750 if (reject_reason) {
1751 *reject_reason = SAMR_REJECT_OTHER;
1753 return NT_STATUS_PASSWORD_RESTRICTION;
1756 /* check the immediately past password */
1757 if (pwdHistoryLength > 0) {
1758 if (lmNewHash && lmPwdHash && memcmp(lmNewHash->hash, lmPwdHash->hash, 16) == 0) {
1759 if (reject_reason) {
1760 *reject_reason = SAMR_REJECT_IN_HISTORY;
1762 return NT_STATUS_PASSWORD_RESTRICTION;
1764 if (ntNewHash && ntPwdHash && memcmp(ntNewHash->hash, ntPwdHash->hash, 16) == 0) {
1765 if (reject_reason) {
1766 *reject_reason = SAMR_REJECT_IN_HISTORY;
1768 return NT_STATUS_PASSWORD_RESTRICTION;
1772 /* check the password history */
1773 sambaLMPwdHistory_len = MIN(sambaLMPwdHistory_len, pwdHistoryLength);
1774 sambaNTPwdHistory_len = MIN(sambaNTPwdHistory_len, pwdHistoryLength);
1776 for (i=0; lmNewHash && i<sambaLMPwdHistory_len;i++) {
1777 if (memcmp(lmNewHash->hash, sambaLMPwdHistory[i].hash, 16) == 0) {
1778 if (reject_reason) {
1779 *reject_reason = SAMR_REJECT_IN_HISTORY;
1781 return NT_STATUS_PASSWORD_RESTRICTION;
1784 for (i=0; ntNewHash && i<sambaNTPwdHistory_len;i++) {
1785 if (memcmp(ntNewHash->hash, sambaNTPwdHistory[i].hash, 16) == 0) {
1786 if (reject_reason) {
1787 *reject_reason = SAMR_REJECT_IN_HISTORY;
1789 return NT_STATUS_PASSWORD_RESTRICTION;
1794 #define CHECK_RET(x) do { if (x != 0) return NT_STATUS_NO_MEMORY; } while(0)
1796 /* the password is acceptable. Start forming the new fields */
1798 /* if we know the cleartext UTF16 password, then set it.
1799 * Modules in ldb will set all the appropriate
1801 CHECK_RET(ldb_msg_add_value(mod, "clearTextPassword", new_password, NULL));
1803 /* We don't have the cleartext, so delete the old one
1804 * and set what we have of the hashes */
1805 CHECK_RET(samdb_msg_add_delete(ctx, mem_ctx, mod, "clearTextPassword"));
1808 CHECK_RET(samdb_msg_add_hash(ctx, mem_ctx, mod, "dBCSPwd", lmNewHash));
1810 CHECK_RET(samdb_msg_add_delete(ctx, mem_ctx, mod, "dBCSPwd"));
1814 CHECK_RET(samdb_msg_add_hash(ctx, mem_ctx, mod, "unicodePwd", ntNewHash));
1816 CHECK_RET(samdb_msg_add_delete(ctx, mem_ctx, mod, "unicodePwd"));
1820 return NT_STATUS_OK;
1825 set the user password using plaintext, obeying any user or domain
1826 password restrictions
1828 This wrapper function takes a SID as input, rather than a user DN,
1829 and actually performs the password change
1832 NTSTATUS samdb_set_password_sid(struct ldb_context *ctx, TALLOC_CTX *mem_ctx,
1833 const struct dom_sid *user_sid,
1834 const DATA_BLOB *new_pass,
1835 struct samr_Password *lmNewHash,
1836 struct samr_Password *ntNewHash,
1838 enum samr_RejectReason *reject_reason,
1839 struct samr_DomInfo1 **_dominfo)
1842 struct ldb_dn *user_dn;
1843 struct ldb_message *msg;
1846 ret = ldb_transaction_start(ctx);
1848 DEBUG(1, ("Failed to start transaction: %s\n", ldb_errstring(ctx)));
1849 return NT_STATUS_TRANSACTION_ABORTED;
1852 user_dn = samdb_search_dn(ctx, mem_ctx, NULL,
1853 "(&(objectSid=%s)(objectClass=user))",
1854 ldap_encode_ndr_dom_sid(mem_ctx, user_sid));
1856 ldb_transaction_cancel(ctx);
1857 DEBUG(3, ("samdb_set_password_sid: SID %s not found in samdb, returning NO_SUCH_USER\n",
1858 dom_sid_string(mem_ctx, user_sid)));
1859 return NT_STATUS_NO_SUCH_USER;
1862 msg = ldb_msg_new(mem_ctx);
1864 ldb_transaction_cancel(ctx);
1865 return NT_STATUS_NO_MEMORY;
1868 msg->dn = ldb_dn_copy(msg, user_dn);
1870 ldb_transaction_cancel(ctx);
1871 return NT_STATUS_NO_MEMORY;
1874 nt_status = samdb_set_password(ctx, mem_ctx,
1877 lmNewHash, ntNewHash,
1878 user_change, /* This is a password set, not change */
1879 reject_reason, _dominfo);
1880 if (!NT_STATUS_IS_OK(nt_status)) {
1881 ldb_transaction_cancel(ctx);
1885 /* modify the samdb record */
1886 ret = samdb_replace(ctx, mem_ctx, msg);
1888 ldb_transaction_cancel(ctx);
1889 return NT_STATUS_ACCESS_DENIED;
1892 ret = ldb_transaction_commit(ctx);
1894 DEBUG(0,("Failed to commit transaction to change password on %s: %s\n",
1895 ldb_dn_get_linearized(msg->dn),
1896 ldb_errstring(ctx)));
1897 return NT_STATUS_TRANSACTION_ABORTED;
1899 return NT_STATUS_OK;
1904 NTSTATUS samdb_create_foreign_security_principal(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
1905 struct dom_sid *sid, struct ldb_dn **ret_dn)
1907 struct ldb_message *msg;
1908 struct ldb_dn *basedn;
1912 sidstr = dom_sid_string(mem_ctx, sid);
1913 NT_STATUS_HAVE_NO_MEMORY(sidstr);
1915 /* We might have to create a ForeignSecurityPrincipal, even if this user
1916 * is in our own domain */
1918 msg = ldb_msg_new(mem_ctx);
1920 return NT_STATUS_NO_MEMORY;
1923 /* TODO: Hmmm. This feels wrong. How do I find the base dn to
1924 * put the ForeignSecurityPrincipals? d_state->domain_dn does
1925 * not work, this is wrong for the Builtin domain, there's no
1926 * cn=For...,cn=Builtin,dc={BASEDN}. -- vl
1929 basedn = samdb_search_dn(sam_ctx, mem_ctx, NULL,
1930 "(&(objectClass=container)(cn=ForeignSecurityPrincipals))");
1932 if (basedn == NULL) {
1933 DEBUG(0, ("Failed to find DN for "
1934 "ForeignSecurityPrincipal container\n"));
1935 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1938 /* add core elements to the ldb_message for the alias */
1939 msg->dn = ldb_dn_copy(mem_ctx, basedn);
1940 if ( ! ldb_dn_add_child_fmt(msg->dn, "CN=%s", sidstr))
1941 return NT_STATUS_NO_MEMORY;
1943 samdb_msg_add_string(sam_ctx, mem_ctx, msg,
1945 "foreignSecurityPrincipal");
1947 /* create the alias */
1948 ret = ldb_add(sam_ctx, msg);
1950 DEBUG(0,("Failed to create foreignSecurityPrincipal "
1952 ldb_dn_get_linearized(msg->dn),
1953 ldb_errstring(sam_ctx)));
1954 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1957 return NT_STATUS_OK;
1962 Find the DN of a domain, assuming it to be a dotted.dns name
1965 struct ldb_dn *samdb_dns_domain_to_dn(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const char *dns_domain)
1968 TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
1969 const char *binary_encoded;
1970 const char **split_realm;
1977 split_realm = (const char **)str_list_make(tmp_ctx, dns_domain, ".");
1979 talloc_free(tmp_ctx);
1982 dn = ldb_dn_new(mem_ctx, ldb, NULL);
1983 for (i=0; split_realm[i]; i++) {
1984 binary_encoded = ldb_binary_encode_string(tmp_ctx, split_realm[i]);
1985 if (!ldb_dn_add_base_fmt(dn, "dc=%s", binary_encoded)) {
1986 DEBUG(2, ("Failed to add dc=%s element to DN %s\n",
1987 binary_encoded, ldb_dn_get_linearized(dn)));
1988 talloc_free(tmp_ctx);
1992 if (!ldb_dn_validate(dn)) {
1993 DEBUG(2, ("Failed to validated DN %s\n",
1994 ldb_dn_get_linearized(dn)));
2000 Find the DN of a domain, be it the netbios or DNS name
2003 struct ldb_dn *samdb_domain_to_dn(struct ldb_context *ldb, TALLOC_CTX *mem_ctx,
2004 const char *domain_name)
2006 const char * const domain_ref_attrs[] = {
2009 const char * const domain_ref2_attrs[] = {
2012 struct ldb_result *res_domain_ref;
2013 char *escaped_domain = ldb_binary_encode_string(mem_ctx, domain_name);
2014 /* find the domain's DN */
2015 int ret_domain = ldb_search(ldb, mem_ctx,
2017 samdb_partitions_dn(ldb, mem_ctx),
2020 "(&(nETBIOSName=%s)(objectclass=crossRef))",
2022 if (ret_domain != 0) {
2026 if (res_domain_ref->count == 0) {
2027 ret_domain = ldb_search(ldb, mem_ctx,
2029 samdb_dns_domain_to_dn(ldb, mem_ctx, domain_name),
2032 "(objectclass=domain)");
2033 if (ret_domain != 0) {
2037 if (res_domain_ref->count == 1) {
2038 return res_domain_ref->msgs[0]->dn;
2043 if (res_domain_ref->count > 1) {
2044 DEBUG(0,("Found %d records matching domain [%s]\n",
2045 ret_domain, domain_name));
2049 return samdb_result_dn(ldb, mem_ctx, res_domain_ref->msgs[0], "nCName", NULL);
2055 use a GUID to find a DN
2057 int dsdb_find_dn_by_guid(struct ldb_context *ldb,
2058 TALLOC_CTX *mem_ctx,
2059 const char *guid_str, struct ldb_dn **dn)
2062 struct ldb_result *res;
2063 const char *attrs[] = { NULL };
2064 struct ldb_request *search_req;
2066 struct ldb_search_options_control *options;
2068 expression = talloc_asprintf(mem_ctx, "objectGUID=%s", guid_str);
2070 DEBUG(0, (__location__ ": out of memory\n"));
2071 return LDB_ERR_OPERATIONS_ERROR;
2074 res = talloc_zero(mem_ctx, struct ldb_result);
2076 DEBUG(0, (__location__ ": out of memory\n"));
2077 return LDB_ERR_OPERATIONS_ERROR;
2080 ret = ldb_build_search_req(&search_req, ldb, mem_ctx,
2081 ldb_get_default_basedn(ldb),
2085 res, ldb_search_default_callback,
2087 if (ret != LDB_SUCCESS) {
2091 /* we need to cope with cross-partition links, so search for
2092 the GUID over all partitions */
2093 options = talloc(search_req, struct ldb_search_options_control);
2094 if (options == NULL) {
2095 DEBUG(0, (__location__ ": out of memory\n"));
2096 return LDB_ERR_OPERATIONS_ERROR;
2098 options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
2100 ret = ldb_request_add_control(search_req,
2101 LDB_CONTROL_SEARCH_OPTIONS_OID,
2103 if (ret != LDB_SUCCESS) {
2107 ret = ldb_request(ldb, search_req);
2108 if (ret != LDB_SUCCESS) {
2112 ret = ldb_wait(search_req->handle, LDB_WAIT_ALL);
2113 if (ret != LDB_SUCCESS) {
2117 /* this really should be exactly 1, but there is a bug in the
2118 partitions module that can return two here with the
2119 search_options control set */
2120 if (res->count < 1) {
2121 return LDB_ERR_NO_SUCH_OBJECT;
2124 *dn = res->msgs[0]->dn;
2131 use a DN to find a GUID
2133 int dsdb_find_guid_by_dn(struct ldb_context *ldb,
2134 struct ldb_dn *dn, struct GUID *guid)
2137 struct ldb_result *res;
2138 const char *attrs[] = { "objectGUID", NULL };
2139 TALLOC_CTX *tmp_ctx = talloc_new(ldb);
2141 ret = ldb_search(ldb, tmp_ctx, &res, dn, LDB_SCOPE_BASE, attrs, NULL);
2142 if (ret != LDB_SUCCESS) {
2143 talloc_free(tmp_ctx);
2146 *guid = samdb_result_guid(res->msgs[0], "objectGUID");
2147 talloc_free(tmp_ctx);
2154 load a repsFromTo blob list for a given partition GUID
2155 attr must be "repsFrom" or "repsTo"
2157 WERROR dsdb_loadreps(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx, struct ldb_dn *dn,
2158 const char *attr, struct repsFromToBlob **r, uint32_t *count)
2160 const char *attrs[] = { attr, NULL };
2161 struct ldb_result *res = NULL;
2162 TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
2164 struct ldb_message_element *el;
2169 if (ldb_search(sam_ctx, tmp_ctx, &res, dn, LDB_SCOPE_BASE, attrs, NULL) != LDB_SUCCESS ||
2171 DEBUG(0,("dsdb_loadreps: failed to read partition object\n"));
2172 talloc_free(tmp_ctx);
2173 return WERR_DS_DRA_INTERNAL_ERROR;
2176 el = ldb_msg_find_element(res->msgs[0], attr);
2178 /* it's OK to be empty */
2179 talloc_free(tmp_ctx);
2183 *count = el->num_values;
2184 *r = talloc_array(mem_ctx, struct repsFromToBlob, *count);
2186 talloc_free(tmp_ctx);
2187 return WERR_DS_DRA_INTERNAL_ERROR;
2190 for (i=0; i<(*count); i++) {
2191 enum ndr_err_code ndr_err;
2192 ndr_err = ndr_pull_struct_blob(&el->values[i],
2193 mem_ctx, lp_iconv_convenience(ldb_get_opaque(sam_ctx, "loadparm")),
2195 (ndr_pull_flags_fn_t)ndr_pull_repsFromToBlob);
2196 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2197 talloc_free(tmp_ctx);
2198 return WERR_DS_DRA_INTERNAL_ERROR;
2202 talloc_free(tmp_ctx);
2208 save the repsFromTo blob list for a given partition GUID
2209 attr must be "repsFrom" or "repsTo"
2211 WERROR dsdb_savereps(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx, struct ldb_dn *dn,
2212 const char *attr, struct repsFromToBlob *r, uint32_t count)
2214 TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
2215 struct ldb_message *msg;
2216 struct ldb_message_element *el;
2219 msg = ldb_msg_new(tmp_ctx);
2221 if (ldb_msg_add_empty(msg, attr, LDB_FLAG_MOD_REPLACE, &el) != LDB_SUCCESS) {
2225 el->values = talloc_array(msg, struct ldb_val, count);
2230 for (i=0; i<count; i++) {
2232 enum ndr_err_code ndr_err;
2234 ndr_err = ndr_push_struct_blob(&v, tmp_ctx, lp_iconv_convenience(ldb_get_opaque(sam_ctx, "loadparm")),
2236 (ndr_push_flags_fn_t)ndr_push_repsFromToBlob);
2237 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2245 if (ldb_modify(sam_ctx, msg) != LDB_SUCCESS) {
2246 DEBUG(0,("Failed to store %s - %s\n", attr, ldb_errstring(sam_ctx)));
2250 talloc_free(tmp_ctx);
2255 talloc_free(tmp_ctx);
2256 return WERR_DS_DRA_INTERNAL_ERROR;