1/*	$NetBSD$	*/
2
3/*
4 * Copyright (c) 2007 Kungliga Tekniska H��gskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include "kdc_locl.h"
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_PLUGIN_MINOR)
59	    continue;
60
61	(*windcft->init)(context, &windcctx);
62	break;
63    }
64    _krb5_plugin_free(list);
65    if (e == NULL) {
66	krb5_set_error_message(context, ENOENT, "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		hdb_entry_ex *krbtgt,
92		krb5_pac *pac,
93		int *verified)
94{
95    krb5_error_code ret;
96
97    if (windcft == NULL)
98	return 0;
99
100    ret = windcft->pac_verify(windcctx, context,
101			      client_principal, client, server, krbtgt, pac);
102    if (ret == 0)
103	*verified = 1;
104    return ret;
105}
106
107krb5_error_code
108_kdc_check_access(krb5_context context,
109		  krb5_kdc_configuration *config,
110		  hdb_entry_ex *client_ex, const char *client_name,
111		  hdb_entry_ex *server_ex, const char *server_name,
112		  KDC_REQ *req,
113		  krb5_data *e_data)
114{
115    if (windcft == NULL)
116	    return kdc_check_flags(context, config,
117				   client_ex, client_name,
118				   server_ex, server_name,
119				   req->msg_type == krb_as_req);
120
121    return (windcft->client_access)(windcctx,
122				    context, config,
123				    client_ex, client_name,
124				    server_ex, server_name,
125				    req, e_data);
126}
127