1/*
2   Unix SMB/CIFS implementation.
3   krb5 set password implementation
4   Copyright (C) Remus Koos 2001 (remuskoos@yahoo.com)
5
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.
10
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.
15
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.
19*/
20
21#include "includes.h"
22
23#ifdef HAVE_KRB5
24
25ADS_STATUS ads_change_trust_account_password(ADS_STRUCT *ads, char *host_principal)
26{
27	char *password;
28	char *new_password;
29	ADS_STATUS ret;
30	uint32 sec_channel_type;
31
32	if ((password = secrets_fetch_machine_password(lp_workgroup(), NULL, &sec_channel_type)) == NULL) {
33		DEBUG(1,("Failed to retrieve password for principal %s\n", host_principal));
34		return ADS_ERROR_SYSTEM(ENOENT);
35	}
36
37	new_password = generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
38
39	ret = kerberos_set_password(ads->auth.kdc_server, host_principal, password, host_principal, new_password, ads->auth.time_offset);
40
41	if (!ADS_ERR_OK(ret)) {
42		goto failed;
43	}
44
45	if (!secrets_store_machine_password(new_password, lp_workgroup(), sec_channel_type)) {
46		DEBUG(1,("Failed to save machine password\n"));
47		ret = ADS_ERROR_SYSTEM(EACCES);
48		goto failed;
49	}
50
51failed:
52	SAFE_FREE(password);
53	return ret;
54}
55#endif
56