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bad7a3fcea
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/*
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Unix SMB/CIFS implementation.
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PAC Glue between Samba and the KDC
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Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2009
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Copyright (C) Simo Sorce <idra@samba.org> 2010
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "system/kerberos.h"
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#include "auth/kerberos/kerberos.h"
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#include <hdb.h>
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#include "kdc/samba_kdc.h"
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#include "kdc/pac-glue.h"
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#include "librpc/gen_ndr/ndr_krb5pac.h"
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#include "auth/kerberos/pac_utils.h"
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#include "kdc/kdc-glue.h"
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#undef DBGC_CLASS
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#define DBGC_CLASS DBGC_KERBEROS
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int kdc_check_pac(krb5_context context,
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DATA_BLOB srv_sig,
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struct PAC_SIGNATURE_DATA *kdc_sig,
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hdb_entry *ent)
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{
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krb5_enctype etype;
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int ret;
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krb5_keyblock keyblock;
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Key *key;
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if (kdc_sig->type == CKSUMTYPE_HMAC_MD5) {
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etype = ENCTYPE_ARCFOUR_HMAC;
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} else {
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ret = krb5_cksumtype_to_enctype(context,
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kdc_sig->type,
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&etype);
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if (ret != 0) {
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return ret;
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}
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}
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ret = hdb_enctype2key(context, ent, NULL, etype, &key);
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if (ret != 0) {
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return ret;
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}
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keyblock = key->key;
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return check_pac_checksum(srv_sig, kdc_sig,
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context, &keyblock);
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}
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struct samba_kdc_entry_pac samba_kdc_get_device_pac(const astgs_request_t r)
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{
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const hdb_entry *device = kdc_request_get_armor_client(r);
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struct samba_kdc_entry *device_skdc_entry = NULL;
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const hdb_entry *device_krbtgt = NULL;
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const struct samba_kdc_entry *device_krbtgt_skdc_entry = NULL;
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const krb5_const_pac device_pac = kdc_request_get_armor_pac(r);
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if (device != NULL) {
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device_skdc_entry = talloc_get_type_abort(device->context,
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struct samba_kdc_entry);
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device_krbtgt = kdc_request_get_armor_server(r);
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if (device_krbtgt != NULL) {
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device_krbtgt_skdc_entry = talloc_get_type_abort(device_krbtgt->context,
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struct samba_kdc_entry);
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}
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}
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return samba_kdc_entry_pac(device_pac,
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device_skdc_entry,
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samba_kdc_entry_is_trust(device_krbtgt_skdc_entry));
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}
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