1/*
2 * Copyright (c) 2007 Kungliga Tekniska H�gskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include "kdc_locl.h"
35
36RCSID("$Id: windc.c 20559 2007-04-24 16:00:07Z lha $");
37
38static krb5plugin_windc_ftable *windcft;
39static void *windcctx;
40
41/*
42 * Pick the first WINDC module that we find.
43 */
44
45krb5_error_code
46krb5_kdc_windc_init(krb5_context context)
47{
48    struct krb5_plugin *list = NULL, *e;
49    krb5_error_code ret;
50
51    ret = _krb5_plugin_find(context, PLUGIN_TYPE_DATA, "windc", &list);
52    if(ret != 0 || list == NULL)
53	return 0;
54
55    for (e = list; e != NULL; e = _krb5_plugin_get_next(e)) {
56
57	windcft = _krb5_plugin_get_symbol(e);
58	if (windcft->minor_version < KRB5_WINDC_PLUGING_MINOR)
59	    continue;
60
61	(*windcft->init)(context, &windcctx);
62	break;
63    }
64    if (e == NULL) {
65	_krb5_plugin_free(list);
66	krb5_set_error_string(context, "Did not find any WINDC plugin");
67	windcft = NULL;
68	return ENOENT;
69    }
70
71    return 0;
72}
73
74
75krb5_error_code
76_kdc_pac_generate(krb5_context context,
77		  hdb_entry_ex *client,
78		  krb5_pac *pac)
79{
80    *pac = NULL;
81    if (windcft == NULL)
82	return 0;
83    return (windcft->pac_generate)(windcctx, context, client, pac);
84}
85
86krb5_error_code
87_kdc_pac_verify(krb5_context context,
88		const krb5_principal client_principal,
89		hdb_entry_ex *client,
90		hdb_entry_ex *server,
91		krb5_pac *pac)
92{
93    if (windcft == NULL) {
94	krb5_set_error_string(context, "Can't verify PAC, no function");
95	return EINVAL;
96    }
97    return (windcft->pac_verify)(windcctx, context,
98				 client_principal, client, server, pac);
99}
100
101krb5_error_code
102_kdc_windc_client_access(krb5_context context,
103			 struct hdb_entry_ex *client,
104			 KDC_REQ *req)
105{
106    if (windcft == NULL)
107	return 0;
108    return (windcft->client_access)(windcctx, context, client, req);
109}
110