mirror of
https://github.com/samba-team/samba.git
synced 2024-12-25 23:21:54 +03:00
ae607c0d05
This can then be easier shared with MIT's kadmin services for kpasswd services. Guenther Signed-off-by: Günther Deschner <gd@samba.org> Reviewed-by: Alexander Bokovoy <ab@samba.org>
113 lines
3.6 KiB
C
113 lines
3.6 KiB
C
/*
|
|
Unix SMB/CIFS implementation.
|
|
|
|
kpasswd Server implementation
|
|
|
|
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
|
|
Copyright (C) Andrew Tridgell 2005
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
#include "dsdb/samdb/samdb.h"
|
|
#include "../lib/util/util_ldb.h"
|
|
#include "libcli/security/security.h"
|
|
#include "dsdb/common/util.h"
|
|
#include "auth/auth.h"
|
|
#include "kdc/kpasswd_glue.h"
|
|
|
|
/*
|
|
A user password change
|
|
|
|
Return true if there is a valid error packet (or success) formed in
|
|
the error_blob
|
|
*/
|
|
NTSTATUS samdb_kpasswd_change_password(TALLOC_CTX *mem_ctx,
|
|
struct loadparm_context *lp_ctx,
|
|
struct tevent_context *event_ctx,
|
|
struct ldb_context *samdb,
|
|
struct auth_session_info *session_info,
|
|
const DATA_BLOB *password,
|
|
enum samPwdChangeReason *reject_reason,
|
|
struct samr_DomInfo1 **dominfo,
|
|
const char **error_string,
|
|
NTSTATUS *result)
|
|
{
|
|
struct samr_Password *oldLmHash, *oldNtHash;
|
|
const char * const attrs[] = { "dBCSPwd", "unicodePwd", NULL };
|
|
struct ldb_message *msg;
|
|
NTSTATUS status;
|
|
int ret;
|
|
|
|
/* Fetch the old hashes to get the old password in order to perform
|
|
* the password change operation. Naturally it would be much better to
|
|
* have a password hash from an authentication around but this doesn't
|
|
* seem to be the case here. */
|
|
ret = dsdb_search_one(samdb, mem_ctx, &msg, ldb_get_default_basedn(samdb),
|
|
LDB_SCOPE_SUBTREE,
|
|
attrs,
|
|
DSDB_SEARCH_NO_GLOBAL_CATALOG,
|
|
"(&(objectClass=user)(sAMAccountName=%s))",
|
|
session_info->info->account_name);
|
|
if (ret != LDB_SUCCESS) {
|
|
*error_string = "No such user when changing password";
|
|
return NT_STATUS_NO_SUCH_USER;
|
|
}
|
|
|
|
/*
|
|
* No need to check for password lockout here, the KDC will
|
|
* have done that when issuing the ticket, which is not based
|
|
* on the user's password
|
|
*/
|
|
status = samdb_result_passwords_no_lockout(mem_ctx, lp_ctx, msg,
|
|
&oldLmHash, &oldNtHash);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
*error_string = "Not permitted to change password";
|
|
return NT_STATUS_ACCESS_DENIED;
|
|
}
|
|
|
|
/* Start a SAM with user privileges for the password change */
|
|
samdb = samdb_connect(mem_ctx, event_ctx, lp_ctx,
|
|
session_info, 0);
|
|
if (!samdb) {
|
|
*error_string = "Failed to open samdb";
|
|
return NT_STATUS_ACCESS_DENIED;
|
|
}
|
|
|
|
DEBUG(3, ("Changing password of %s\\%s (%s)\n",
|
|
session_info->info->domain_name,
|
|
session_info->info->account_name,
|
|
dom_sid_string(mem_ctx, &session_info->security_token->sids[PRIMARY_USER_SID_INDEX])));
|
|
|
|
/* Performs the password change */
|
|
status = samdb_set_password_sid(samdb,
|
|
mem_ctx,
|
|
&session_info->security_token->sids[PRIMARY_USER_SID_INDEX],
|
|
NULL,
|
|
password,
|
|
NULL,
|
|
NULL,
|
|
oldLmHash,
|
|
oldNtHash, /* this is a user password change */
|
|
reject_reason,
|
|
dominfo);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
*error_string = nt_errstr(status);
|
|
}
|
|
*result = status;
|
|
|
|
return NT_STATUS_OK;
|
|
}
|