xref: /netbsd-src/crypto/external/bsd/heimdal/dist/lib/krb5/kuserok_plugin.h (revision d3273b5b76f5afaafe308cead5511dbb8df8c5e9)
1 /*	$NetBSD: kuserok_plugin.h,v 1.2 2017/01/28 21:31:49 christos Exp $	*/
2 
3 /*
4  * Copyright (c) 2011, Secure Endpoints Inc.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  *
11  * - Redistributions of source code must retain the above copyright
12  *   notice, this list of conditions and the following disclaimer.
13  *
14  * - Redistributions in binary form must reproduce the above copyright
15  *   notice, this list of conditions and the following disclaimer in
16  *   the documentation and/or other materials provided with the
17  *   distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
24  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
25  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
26  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
28  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
30  * OF THE POSSIBILITY OF SUCH DAMAGE.
31  *
32  */
33 
34 #ifndef HEIMDAL_KRB5_KUSEROK_PLUGIN_H
35 #define HEIMDAL_KRB5_KUSEROK_PLUGIN_H 1
36 
37 #define KRB5_PLUGIN_KUSEROK "krb5_plugin_kuserok"
38 #define KRB5_PLUGIN_KUSEROK_VERSION_0 0
39 
40 /** @struct krb5plugin_kuserok_ftable_desc
41  *
42  * @brief Description of the krb5_kuserok(3) plugin facility.
43  *
44  * The krb5_kuserok(3) function is pluggable.  The plugin is named
45  * KRB5_PLUGIN_KUSEROK ("krb5_plugin_kuserok"), with a single minor
46  * version, KRB5_PLUGIN_KUSEROK_VERSION_0 (0).
47  *
48  * The plugin for krb5_kuserok(3) consists of a data symbol referencing
49  * a structure of type krb5plugin_kuserok_ftable, with four fields:
50  *
51  * @param init          Plugin initialization function (see krb5-plugin(7))
52  *
53  * @param minor_version The plugin minor version number (0)
54  *
55  * @param fini          Plugin finalization function
56  *
57  * @param kuserok       Plugin kuserok function
58  *
59  * The kuserok field is the plugin entry point that performs the
60  * traditional kuserok operation however the plugin desires.  It is
61  * invoked in no particular order relative to other kuserok plugins, but
62  * it has a 'rule' argument that indicates which plugin is intended to
63  * act on the rule.  The plugin kuserok function must return
64  * KRB5_PLUGIN_NO_HANDLE if the rule is not applicable to it.
65  *
66  * The plugin kuserok function has the following arguments, in this
67  * order:
68  *
69  * -# plug_ctx, the context value output by the plugin's init function
70  * -# context, a krb5_context
71  * -# rule, the kuserok rule being evaluated (from krb5.conf(5))
72  * -# flags
73  * -# k5login_dir, configured location of k5login per-user files if any
74  * -# luser, name of the local user account to which principal is attempting to access.
75  * -# principal, the krb5_principal trying to access the luser account
76  * -# result, a krb5_boolean pointer where the plugin will output its result
77  *
78  * @ingroup krb5_support
79  */
80 typedef struct krb5plugin_kuserok_ftable_desc {
81     int			minor_version;
82     krb5_error_code	(KRB5_LIB_CALL *init)(krb5_context, void **);
83     void		(KRB5_LIB_CALL *fini)(void *);
84     krb5_error_code	(KRB5_LIB_CALL *kuserok)(void *, krb5_context, const char *,
85 				   unsigned int, const char *, const char *,
86 				   krb5_const_principal,
87 				   krb5_boolean *);
88 } krb5plugin_kuserok_ftable;
89 
90 #define KUSEROK_ANAME_TO_LNAME_OK        1
91 #define KUSEROK_K5LOGIN_IS_AUTHORITATIVE 2
92 
93 #endif /* HEIMDAL_KRB5_KUSEROK_PLUGIN_H */
94