1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
/*
Unix SMB/CIFS implementation.
PAC Glue between Samba and the KDC
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2009
Copyright (C) Simo Sorce <idra@samba.org> 2010
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 "system/kerberos.h"
#include "auth/kerberos/kerberos.h"
#include <hdb.h>
#include "kdc/samba_kdc.h"
#include "kdc/pac-glue.h"
#include "librpc/gen_ndr/ndr_krb5pac.h"
#include "auth/kerberos/pac_utils.h"
#include "kdc/kdc-glue.h"
int kdc_check_pac(krb5_context context,
DATA_BLOB srv_sig,
struct PAC_SIGNATURE_DATA *kdc_sig,
struct hdb_entry_ex *ent)
{
krb5_enctype etype;
int ret;
krb5_keyblock keyblock;
Key *key;
if (kdc_sig->type == CKSUMTYPE_HMAC_MD5) {
etype = ENCTYPE_ARCFOUR_HMAC;
} else {
ret = krb5_cksumtype_to_enctype(context,
kdc_sig->type,
&etype);
if (ret != 0) {
return ret;
}
}
#if HDB_ENCTYPE2KEY_TAKES_KEYSET
ret = hdb_enctype2key(context, &ent->entry, NULL, etype, &key);
#else
ret = hdb_enctype2key(context, &ent->entry, etype, &key);
#endif
if (ret != 0) {
return ret;
}
keyblock = key->key;
return check_pac_checksum(srv_sig, kdc_sig,
context, &keyblock);
}
|
