source: branches/samba-3.3.x/source/libads/util.c@ 467

Last change on this file since 467 was 206, checked in by Herwig Bauernfeind, 16 years ago

Import Samba 3.3 branch at 3.0.0 level (psmedley's port)
File size: 3.1 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 3 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, see <http://www.gnu.org/licenses/>.
18*/
19
20#include "includes.h"
21
22#ifdef HAVE_KRB5
23
24ADS_STATUS ads_change_trust_account_password(ADS_STRUCT *ads, char *host_principal)
25{
26 char *password;
27 char *new_password;
28 ADS_STATUS ret;
29 uint32 sec_channel_type;
30
31 if ((password = secrets_fetch_machine_password(lp_workgroup(), NULL, &sec_channel_type)) == NULL) {
32 DEBUG(1,("Failed to retrieve password for principal %s\n", host_principal));
33 return ADS_ERROR_SYSTEM(ENOENT);
34 }
35
36 new_password = generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
37
38 ret = kerberos_set_password(ads->auth.kdc_server, host_principal, password, host_principal, new_password, ads->auth.time_offset);
39
40 if (!ADS_ERR_OK(ret)) {
41 goto failed;
42 }
43
44 if (!secrets_store_machine_password(new_password, lp_workgroup(), sec_channel_type)) {
45 DEBUG(1,("Failed to save machine password\n"));
46 ret = ADS_ERROR_SYSTEM(EACCES);
47 goto failed;
48 }
49
50failed:
51 SAFE_FREE(password);
52 return ret;
53}
54
55ADS_STATUS ads_guess_service_principal(ADS_STRUCT *ads,
56 char **returned_principal)
57{
58 char *princ = NULL;
59
60 if (ads->server.realm && ads->server.ldap_server) {
61 char *server, *server_realm;
62
63 server = SMB_STRDUP(ads->server.ldap_server);
64 server_realm = SMB_STRDUP(ads->server.realm);
65
66 if (!server || !server_realm) {
67 SAFE_FREE(server);
68 SAFE_FREE(server_realm);
69 return ADS_ERROR(LDAP_NO_MEMORY);
70 }
71
72 strlower_m(server);
73 strupper_m(server_realm);
74 if (asprintf(&princ, "ldap/%s@%s", server, server_realm) == -1) {
75 SAFE_FREE(server);
76 SAFE_FREE(server_realm);
77 return ADS_ERROR(LDAP_NO_MEMORY);
78 }
79
80 SAFE_FREE(server);
81 SAFE_FREE(server_realm);
82
83 if (!princ) {
84 return ADS_ERROR(LDAP_NO_MEMORY);
85 }
86 } else if (ads->config.realm && ads->config.ldap_server_name) {
87 char *server, *server_realm;
88
89 server = SMB_STRDUP(ads->config.ldap_server_name);
90 server_realm = SMB_STRDUP(ads->config.realm);
91
92 if (!server || !server_realm) {
93 SAFE_FREE(server);
94 SAFE_FREE(server_realm);
95 return ADS_ERROR(LDAP_NO_MEMORY);
96 }
97
98 strlower_m(server);
99 strupper_m(server_realm);
100 if (asprintf(&princ, "ldap/%s@%s", server, server_realm) == -1) {
101 SAFE_FREE(server);
102 SAFE_FREE(server_realm);
103 return ADS_ERROR(LDAP_NO_MEMORY);
104 }
105
106 SAFE_FREE(server);
107 SAFE_FREE(server_realm);
108
109 if (!princ) {
110 return ADS_ERROR(LDAP_NO_MEMORY);
111 }
112 }
113
114 if (!princ) {
115 return ADS_ERROR(LDAP_PARAM_ERROR);
116 }
117
118 *returned_principal = princ;
119
120 return ADS_SUCCESS;
121}
122
123#endif
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