source: branches/samba-3.0/source/libads/util.c@ 614

Last change on this file since 614 was 124, checked in by Paul Smedley, 17 years ago

Update source to 3.0.28a
File size: 3.0 KB
Line 
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
56ADS_STATUS ads_guess_service_principal(ADS_STRUCT *ads,
57 char **returned_principal)
58{
59 char *princ = NULL;
60
61 if (ads->server.realm && ads->server.ldap_server) {
62 char *server, *server_realm;
63
64 server = SMB_STRDUP(ads->server.ldap_server);
65 server_realm = SMB_STRDUP(ads->server.realm);
66
67 if (!server || !server_realm) {
68 return ADS_ERROR(LDAP_NO_MEMORY);
69 }
70
71 strlower_m(server);
72 strupper_m(server_realm);
73 asprintf(&princ, "ldap/%s@%s", server, server_realm);
74
75 SAFE_FREE(server);
76 SAFE_FREE(server_realm);
77
78 if (!princ) {
79 return ADS_ERROR(LDAP_NO_MEMORY);
80 }
81 } else if (ads->config.realm && ads->config.ldap_server_name) {
82 char *server, *server_realm;
83
84 server = SMB_STRDUP(ads->config.ldap_server_name);
85 server_realm = SMB_STRDUP(ads->config.realm);
86
87 if (!server || !server_realm) {
88 return ADS_ERROR(LDAP_NO_MEMORY);
89 }
90
91 strlower_m(server);
92 strupper_m(server_realm);
93 asprintf(&princ, "ldap/%s@%s", server, server_realm);
94
95 SAFE_FREE(server);
96 SAFE_FREE(server_realm);
97
98 if (!princ) {
99 return ADS_ERROR(LDAP_NO_MEMORY);
100 }
101 }
102
103 if (!princ) {
104 return ADS_ERROR(LDAP_PARAM_ERROR);
105 }
106
107 *returned_principal = princ;
108
109 return ADS_SUCCESS;
110}
111
112#endif
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