r13679: Commiting the rm_primary_group.patch posted on samba-technical
[Samba.git] / source / libads / util.c
blob4a4d90d7fbc5a7a71303eefe687071e354b83594
1 /*
2 Unix SMB/CIFS implementation.
3 krb5 set password implementation
4 Copyright (C) Remus Koos 2001 (remuskoos@yahoo.com)
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include "includes.h"
23 #ifdef HAVE_KRB5
25 ADS_STATUS ads_change_trust_account_password(ADS_STRUCT *ads, char *host_principal)
27 char *password;
28 char *new_password;
29 char *service_principal;
30 ADS_STATUS ret;
31 uint32 sec_channel_type;
33 if ((password = secrets_fetch_machine_password(lp_workgroup(), NULL, &sec_channel_type)) == NULL) {
34 DEBUG(1,("Failed to retrieve password for principal %s\n", host_principal));
35 return ADS_ERROR_SYSTEM(ENOENT);
38 new_password = generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
40 asprintf(&service_principal, "HOST/%s", host_principal);
42 ret = kerberos_set_password(ads->auth.kdc_server, service_principal, password, service_principal, new_password, ads->auth.time_offset);
44 if (!ADS_ERR_OK(ret)) {
45 goto failed;
48 if (!secrets_store_machine_password(new_password, lp_workgroup(), sec_channel_type)) {
49 DEBUG(1,("Failed to save machine password\n"));
50 ret = ADS_ERROR_SYSTEM(EACCES);
51 goto failed;
54 /* Determine if the KDC is salting keys for this principal in a
55 * non-obvious way. */
56 if (!kerberos_derive_salting_principal(service_principal)) {
57 DEBUG(1,("Failed to determine correct salting principal for %s\n", service_principal));
58 ret = ADS_ERROR_SYSTEM(EACCES);
59 goto failed;
62 failed:
63 SAFE_FREE(service_principal);
64 SAFE_FREE(password);
65 return ret;
67 #endif