/*
Unix SMB/CIFS implementation.
Password and authentication handling
- Copyright (C) Andrew Bartlett <abartlet@samba.org> 2001-2004
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2001-2010
Copyright (C) Gerald Carter 2003
Copyright (C) Stefan Metzmacher 2005
Copyright (C) Matthias Dieter Wallnöfer 2009
#include "libcli/security/security.h"
#include "auth/auth_sam.h"
#include "dsdb/common/util.h"
+#include "libcli/ldap/ldap_ndr.h"
+#include "param/param.h"
#define KRBTGT_ATTRS \
/* required for the krb5 kdc */ \
"msDS-SecondaryKrbTgtNumber", \
"msDS-SupportedEncryptionTypes", \
"supplementalCredentials", \
+ "msDS-AllowedToDelegateTo", \
\
/* passwords */ \
"dBCSPwd", \
/* check 'allowed workstations' */
"userWorkstations",
- /* required for server_info, not access control: */
+ /* required for user_info_dc, not access control: */
"displayName",
"scriptPath",
"profilePath",
return NT_STATUS_OK;
}
-/* This function tests if a SID structure "sids" contains the SID "sid" */
-static bool sids_contains_sid(const struct dom_sid **sids,
- const unsigned int num_sids,
- const struct dom_sid *sid)
-{
- unsigned int i;
-
- for (i = 0; i < num_sids; i++) {
- if (dom_sid_equal(sids[i], sid))
- return true;
- }
- return false;
-}
-
-
-/*
- * This function generates the transitive closure of a given SAM object "dn_val"
- * (it basically expands nested memberships).
- * If the object isn't located in the "res_sids" structure yet and the
- * "only_childs" flag is false, we add it to "res_sids".
- * Then we've always to consider the "memberOf" attributes. We invoke the
- * function recursively on each of it with the "only_childs" flag set to
- * "false".
- * The "only_childs" flag is particularly useful if you have a user object and
- * want to include all it's groups (referenced with "memberOf") but not itself
- * or considering if that object matches the filter.
- *
- * At the beginning "res_sids" should reference to a NULL pointer.
- */
-NTSTATUS authsam_expand_nested_groups(struct ldb_context *sam_ctx,
- struct ldb_val *dn_val, const bool only_childs, const char *filter,
- TALLOC_CTX *res_sids_ctx, struct dom_sid ***res_sids,
- unsigned int *num_res_sids)
-{
- const char * const attrs[] = { "memberOf", NULL };
- unsigned int i;
- int ret;
- bool already_there;
- struct ldb_dn *dn;
- struct dom_sid sid;
- TALLOC_CTX *tmp_ctx;
- struct ldb_result *res;
- NTSTATUS status;
- const struct ldb_message_element *el;
-
- if (*res_sids == NULL) {
- *num_res_sids = 0;
- }
-
- if (!sam_ctx) {
- DEBUG(0, ("No SAM available, cannot determine local groups\n"));
- return NT_STATUS_INVALID_SYSTEM_SERVICE;
- }
-
- tmp_ctx = talloc_new(res_sids_ctx);
-
- dn = ldb_dn_from_ldb_val(tmp_ctx, sam_ctx, dn_val);
- if (dn == NULL) {
- talloc_free(tmp_ctx);
- DEBUG(0, (__location__ ": we failed parsing DN %*.*s, so we cannot calculate the group token\n",
- (int)dn_val->length, (int)dn_val->length, dn_val->data));
- return NT_STATUS_INTERNAL_DB_CORRUPTION;
- }
-
- status = dsdb_get_extended_dn_sid(dn, &sid, "SID");
- if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
- /* If we fail finding a SID then this is no error since it could
- * be a non SAM object - e.g. a group with object class
- * "groupOfNames" */
- talloc_free(tmp_ctx);
- return NT_STATUS_OK;
- } else if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, (__location__ ": when parsing DN %s we failed to parse our SID component, so we cannot calculate the group token: %s\n",
- ldb_dn_get_extended_linearized(tmp_ctx, dn, 1),
- nt_errstr(status)));
- talloc_free(tmp_ctx);
- return status;
- }
-
- if (only_childs) {
- ret = dsdb_search_dn(sam_ctx, tmp_ctx, &res, dn, attrs,
- DSDB_SEARCH_SHOW_EXTENDED_DN);
- } else {
- /* This is an O(n^2) linear search */
- already_there = sids_contains_sid((const struct dom_sid**) *res_sids,
- *num_res_sids, &sid);
- if (already_there) {
- talloc_free(tmp_ctx);
- return NT_STATUS_OK;
- }
-
- ret = dsdb_search(sam_ctx, tmp_ctx, &res, dn, LDB_SCOPE_BASE,
- attrs, DSDB_SEARCH_SHOW_EXTENDED_DN, "%s",
- filter);
- }
-
- if (ret == LDB_ERR_NO_SUCH_OBJECT) {
- talloc_free(tmp_ctx);
- return NT_STATUS_OK;
- }
-
- if (ret != LDB_SUCCESS) {
- DEBUG(1, (__location__ ": dsdb_search for %s failed: %s\n",
- ldb_dn_get_extended_linearized(tmp_ctx, dn, 1),
- ldb_errstring(sam_ctx)));
- talloc_free(tmp_ctx);
- return NT_STATUS_INTERNAL_DB_CORRUPTION;
- }
-
- /* We may get back 0 results, if the SID didn't match the filter - such as it wasn't a domain group, for example */
- if (res->count != 1) {
- talloc_free(tmp_ctx);
- return NT_STATUS_OK;
- }
-
- /* We only apply this test once we know the SID matches the filter */
- if (!only_childs) {
- *res_sids = talloc_realloc(res_sids_ctx, *res_sids,
- struct dom_sid *, *num_res_sids + 1);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(*res_sids, tmp_ctx);
- (*res_sids)[*num_res_sids] = dom_sid_dup(*res_sids, &sid);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE((*res_sids)[*num_res_sids], tmp_ctx);
- ++(*num_res_sids);
- }
-
- el = ldb_msg_find_element(res->msgs[0], "memberOf");
-
- for (i = 0; el && i < el->num_values; i++) {
- status = authsam_expand_nested_groups(sam_ctx, &el->values[i],
- false, filter, res_sids_ctx, res_sids, num_res_sids);
- if (!NT_STATUS_IS_OK(status)) {
- talloc_free(tmp_ctx);
- return status;
- }
- }
-
- talloc_free(tmp_ctx);
-
- return NT_STATUS_OK;
-}
-
-_PUBLIC_ NTSTATUS authsam_make_server_info(TALLOC_CTX *mem_ctx,
+_PUBLIC_ NTSTATUS authsam_make_user_info_dc(TALLOC_CTX *mem_ctx,
struct ldb_context *sam_ctx,
const char *netbios_name,
const char *domain_name,
struct ldb_message *msg,
DATA_BLOB user_sess_key,
DATA_BLOB lm_sess_key,
- struct auth_serversupplied_info **_server_info)
+ struct auth_user_info_dc **_user_info_dc)
{
NTSTATUS status;
- struct auth_serversupplied_info *server_info;
+ struct auth_user_info_dc *user_info_dc;
+ struct auth_user_info *info;
const char *str, *filter;
/* SIDs for the account and his primary group */
struct dom_sid *account_sid;
- struct dom_sid *primary_group_sid;
const char *primary_group_string;
const char *primary_group_dn;
DATA_BLOB primary_group_blob;
/* SID structures for the expanded group memberships */
- struct dom_sid **groupSIDs = NULL;
- unsigned int num_groupSIDs = 0, i;
+ struct dom_sid *sids = NULL;
+ unsigned int num_sids = 0, i;
struct dom_sid *domain_sid;
TALLOC_CTX *tmp_ctx;
struct ldb_message_element *el;
- server_info = talloc(mem_ctx, struct auth_serversupplied_info);
- NT_STATUS_HAVE_NO_MEMORY(server_info);
+ user_info_dc = talloc(mem_ctx, struct auth_user_info_dc);
+ NT_STATUS_HAVE_NO_MEMORY(user_info_dc);
+
+ tmp_ctx = talloc_new(user_info_dc);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info_dc, user_info_dc);
- tmp_ctx = talloc_new(server_info);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info, server_info);
+ sids = talloc_array(user_info_dc, struct dom_sid, 2);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(sids, user_info_dc);
- account_sid = samdb_result_dom_sid(server_info, msg, "objectSid");
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(account_sid, server_info);
+ num_sids = 2;
+
+ account_sid = samdb_result_dom_sid(user_info_dc, msg, "objectSid");
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(account_sid, user_info_dc);
status = dom_sid_split_rid(tmp_ctx, account_sid, &domain_sid, NULL);
if (!NT_STATUS_IS_OK(status)) {
- talloc_free(server_info);
+ talloc_free(user_info_dc);
return status;
}
- primary_group_sid = dom_sid_add_rid(server_info,
- domain_sid,
- ldb_msg_find_attr_as_uint(msg, "primaryGroupID", ~0));
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(primary_group_sid, server_info);
+ sids[PRIMARY_USER_SID_INDEX] = *account_sid;
+ sids[PRIMARY_GROUP_SID_INDEX] = *domain_sid;
+ sid_append_rid(&sids[PRIMARY_GROUP_SID_INDEX], ldb_msg_find_attr_as_uint(msg, "primaryGroupID", ~0));
/* Filter out builtin groups from this token. We will search
* for builtin groups later, and not include them in the PAC
* on SamLogon validation info */
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);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(filter, server_info);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(filter, user_info_dc);
- primary_group_string = dom_sid_string(tmp_ctx, primary_group_sid);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(primary_group_string, server_info);
+ primary_group_string = dom_sid_string(tmp_ctx, &sids[PRIMARY_GROUP_SID_INDEX]);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(primary_group_string, user_info_dc);
primary_group_dn = talloc_asprintf(tmp_ctx, "<SID=%s>", primary_group_string);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(primary_group_dn, server_info);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(primary_group_dn, user_info_dc);
primary_group_blob = data_blob_string_const(primary_group_dn);
* The primary group is still treated specially, so we set the
* 'only childs' flag to true
*/
- status = authsam_expand_nested_groups(sam_ctx, &primary_group_blob, true, filter,
- server_info, &groupSIDs, &num_groupSIDs);
+ status = dsdb_expand_nested_groups(sam_ctx, &primary_group_blob, true, filter,
+ user_info_dc, &sids, &num_sids);
if (!NT_STATUS_IS_OK(status)) {
- talloc_free(server_info);
+ talloc_free(user_info_dc);
return status;
}
/* This function takes in memberOf values and expands
* them, as long as they meet the filter - so only
* domain groups, not builtin groups */
- status = authsam_expand_nested_groups(sam_ctx, &el->values[i], false, filter,
- server_info, &groupSIDs, &num_groupSIDs);
+ status = dsdb_expand_nested_groups(sam_ctx, &el->values[i], false, filter,
+ user_info_dc, &sids, &num_sids);
if (!NT_STATUS_IS_OK(status)) {
- talloc_free(server_info);
+ talloc_free(user_info_dc);
return status;
}
}
- server_info->account_sid = account_sid;
- server_info->primary_group_sid = primary_group_sid;
-
- server_info->domain_groups = groupSIDs;
- server_info->n_domain_groups = num_groupSIDs;
+ user_info_dc->sids = sids;
+ user_info_dc->num_sids = num_sids;
+
+ user_info_dc->info = info = talloc_zero(user_info_dc, struct auth_user_info);
+ NT_STATUS_HAVE_NO_MEMORY(user_info_dc->info);
- server_info->account_name = talloc_steal(server_info,
+ info->account_name = talloc_steal(info,
ldb_msg_find_attr_as_string(msg, "sAMAccountName", NULL));
- server_info->domain_name = talloc_strdup(server_info, domain_name);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info->domain_name,
- server_info);
+ info->domain_name = talloc_strdup(info, domain_name);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->domain_name,
+ user_info_dc);
str = ldb_msg_find_attr_as_string(msg, "displayName", "");
- server_info->full_name = talloc_strdup(server_info, str);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info->full_name, server_info);
+ info->full_name = talloc_strdup(info, str);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->full_name, user_info_dc);
str = ldb_msg_find_attr_as_string(msg, "scriptPath", "");
- server_info->logon_script = talloc_strdup(server_info, str);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info->logon_script,
- server_info);
+ info->logon_script = talloc_strdup(info, str);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->logon_script,
+ user_info_dc);
str = ldb_msg_find_attr_as_string(msg, "profilePath", "");
- server_info->profile_path = talloc_strdup(server_info, str);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info->profile_path,
- server_info);
+ info->profile_path = talloc_strdup(info, str);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->profile_path,
+ user_info_dc);
str = ldb_msg_find_attr_as_string(msg, "homeDirectory", "");
- server_info->home_directory = talloc_strdup(server_info, str);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info->home_directory,
- server_info);
+ info->home_directory = talloc_strdup(info, str);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->home_directory,
+ user_info_dc);
str = ldb_msg_find_attr_as_string(msg, "homeDrive", "");
- server_info->home_drive = talloc_strdup(server_info, str);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info->home_drive, server_info);
+ info->home_drive = talloc_strdup(info, str);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->home_drive, user_info_dc);
- server_info->logon_server = talloc_strdup(server_info, netbios_name);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info->logon_server,
- server_info);
+ info->logon_server = talloc_strdup(info, netbios_name);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(info->logon_server,
+ user_info_dc);
- server_info->last_logon = samdb_result_nttime(msg, "lastLogon", 0);
- server_info->last_logoff = samdb_result_last_logoff(msg);
- server_info->acct_expiry = samdb_result_account_expires(msg);
- server_info->last_password_change = samdb_result_nttime(msg,
+ info->last_logon = samdb_result_nttime(msg, "lastLogon", 0);
+ info->last_logoff = samdb_result_last_logoff(msg);
+ info->acct_expiry = samdb_result_account_expires(msg);
+ info->last_password_change = samdb_result_nttime(msg,
"pwdLastSet", 0);
- server_info->allow_password_change
+ info->allow_password_change
= samdb_result_allow_password_change(sam_ctx, mem_ctx,
domain_dn, msg, "pwdLastSet");
- server_info->force_password_change
+ info->force_password_change
= samdb_result_force_password_change(sam_ctx, mem_ctx,
domain_dn, msg);
- server_info->logon_count = ldb_msg_find_attr_as_uint(msg, "logonCount", 0);
- server_info->bad_password_count = ldb_msg_find_attr_as_uint(msg, "badPwdCount",
+ info->logon_count = ldb_msg_find_attr_as_uint(msg, "logonCount", 0);
+ info->bad_password_count = ldb_msg_find_attr_as_uint(msg, "badPwdCount",
0);
- server_info->acct_flags = samdb_result_acct_flags(sam_ctx, mem_ctx,
+ info->acct_flags = samdb_result_acct_flags(sam_ctx, mem_ctx,
msg, domain_dn);
- server_info->user_session_key = data_blob_talloc(server_info,
+ user_info_dc->user_session_key = data_blob_talloc(user_info_dc,
user_sess_key.data,
user_sess_key.length);
if (user_sess_key.data) {
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info->user_session_key.data,
- server_info);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info_dc->user_session_key.data,
+ user_info_dc);
}
- server_info->lm_session_key = data_blob_talloc(server_info,
+ user_info_dc->lm_session_key = data_blob_talloc(user_info_dc,
lm_sess_key.data,
lm_sess_key.length);
if (lm_sess_key.data) {
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info->lm_session_key.data,
- server_info);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info_dc->lm_session_key.data,
+ user_info_dc);
}
- if (server_info->acct_flags & ACB_SVRTRUST) {
+ if (info->acct_flags & ACB_SVRTRUST) {
/* the SID_NT_ENTERPRISE_DCS SID gets added into the
PAC */
- server_info->domain_groups = talloc_realloc(server_info,
- server_info->domain_groups,
- struct dom_sid *,
- server_info->n_domain_groups+1);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info->domain_groups, server_info);
- server_info->domain_groups[server_info->n_domain_groups] =
- dom_sid_parse_talloc(server_info->domain_groups,
- SID_NT_ENTERPRISE_DCS);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info->domain_groups[server_info->n_domain_groups],
- server_info);
- server_info->n_domain_groups++;
+ user_info_dc->sids = talloc_realloc(user_info_dc,
+ user_info_dc->sids,
+ struct dom_sid,
+ user_info_dc->num_sids+1);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info_dc->sids, user_info_dc);
+ user_info_dc->sids[user_info_dc->num_sids] = global_sid_Enterprise_DCs;
+ user_info_dc->num_sids++;
}
- if ((server_info->acct_flags & (ACB_PARTIAL_SECRETS_ACCOUNT | ACB_WSTRUST)) ==
+ if ((info->acct_flags & (ACB_PARTIAL_SECRETS_ACCOUNT | ACB_WSTRUST)) ==
(ACB_PARTIAL_SECRETS_ACCOUNT | ACB_WSTRUST)) {
/* the DOMAIN_RID_ENTERPRISE_READONLY_DCS PAC */
- server_info->domain_groups = talloc_realloc(server_info,
- server_info->domain_groups,
- struct dom_sid *,
- server_info->n_domain_groups+1);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info->domain_groups, server_info);
- server_info->domain_groups[server_info->n_domain_groups] =
- dom_sid_add_rid(server_info->domain_groups, domain_sid,
- DOMAIN_RID_ENTERPRISE_READONLY_DCS);
- NT_STATUS_HAVE_NO_MEMORY_AND_FREE(server_info->domain_groups[server_info->n_domain_groups],
- server_info);
- server_info->n_domain_groups++;
+ user_info_dc->sids = talloc_realloc(user_info_dc,
+ user_info_dc->sids,
+ struct dom_sid,
+ user_info_dc->num_sids+1);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info_dc->sids, user_info_dc);
+ user_info_dc->sids[user_info_dc->num_sids] = *domain_sid;
+ sid_append_rid(&user_info_dc->sids[user_info_dc->num_sids],
+ DOMAIN_RID_ENTERPRISE_READONLY_DCS);
+ user_info_dc->num_sids++;
}
- server_info->authenticated = true;
+ info->authenticated = true;
talloc_free(tmp_ctx);
- *_server_info = server_info;
+ *_user_info_dc = user_info_dc;
return NT_STATUS_OK;
}
return NT_STATUS_OK;
}
+
+/* Used in the gensec_gssapi and gensec_krb5 server-side code, where the PAC isn't available, and for tokenGroups in the DSDB stack.
+
+ Supply either a principal or a DN
+*/
+NTSTATUS authsam_get_user_info_dc_principal(TALLOC_CTX *mem_ctx,
+ struct loadparm_context *lp_ctx,
+ struct ldb_context *sam_ctx,
+ const char *principal,
+ struct ldb_dn *user_dn,
+ struct auth_user_info_dc **user_info_dc)
+{
+ NTSTATUS nt_status;
+ DATA_BLOB user_sess_key = data_blob(NULL, 0);
+ DATA_BLOB lm_sess_key = data_blob(NULL, 0);
+
+ struct ldb_message *msg;
+ struct ldb_dn *domain_dn;
+
+ TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+ if (!tmp_ctx) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (principal) {
+ nt_status = sam_get_results_principal(sam_ctx, tmp_ctx, principal,
+ user_attrs, &domain_dn, &msg);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(tmp_ctx);
+ return nt_status;
+ }
+ } else if (user_dn) {
+ struct dom_sid *user_sid, *domain_sid;
+ int ret;
+ /* pull the user attributes */
+ ret = dsdb_search_one(sam_ctx, tmp_ctx, &msg, user_dn,
+ LDB_SCOPE_BASE, user_attrs, DSDB_SEARCH_SHOW_EXTENDED_DN, "(objectClass=*)");
+ if (ret == LDB_ERR_NO_SUCH_OBJECT) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_SUCH_USER;
+ } else if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+
+ user_sid = samdb_result_dom_sid(msg, msg, "objectSid");
+
+ nt_status = dom_sid_split_rid(tmp_ctx, user_sid, &domain_sid, NULL);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+
+ domain_dn = samdb_search_dn(sam_ctx, mem_ctx, NULL,
+ "(&(objectSid=%s)(objectClass=domain))",
+ ldap_encode_ndr_dom_sid(tmp_ctx, domain_sid));
+ if (!domain_dn) {
+ DEBUG(3, ("authsam_get_user_info_dc_principal: Failed to find domain with: SID %s\n",
+ dom_sid_string(tmp_ctx, domain_sid)));
+ return NT_STATUS_NO_SUCH_USER;
+ }
+
+ } else {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ nt_status = authsam_make_user_info_dc(tmp_ctx, sam_ctx,
+ lpcfg_netbios_name(lp_ctx),
+ lpcfg_workgroup(lp_ctx),
+ domain_dn,
+ msg,
+ user_sess_key, lm_sess_key,
+ user_info_dc);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(tmp_ctx);
+ return nt_status;
+ }
+
+ talloc_steal(mem_ctx, *user_info_dc);
+ talloc_free(tmp_ctx);
+
+ return NT_STATUS_OK;
+}