1 /* $NetBSD: auth_none.c,v 1.13 2000/01/22 22:19:17 mycroft Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-3-Clause
5 *
6 * Copyright (c) 2009, Sun Microsystems, Inc.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 * - Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
16 * - Neither the name of Sun Microsystems, Inc. nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 /*
35 * auth_none.c
36 * Creates a client authentication handle for passing "null"
37 * credentials and verifiers to remote systems.
38 *
39 * Copyright (C) 1984, Sun Microsystems, Inc.
40 */
41
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/kernel.h>
45 #include <sys/lock.h>
46 #include <sys/malloc.h>
47 #include <sys/mutex.h>
48
49 #include <rpc/types.h>
50 #include <rpc/xdr.h>
51 #include <rpc/auth.h>
52 #include <rpc/clnt.h>
53
54 #define MAX_MARSHAL_SIZE 20
55
56 /*
57 * Authenticator operations routines
58 */
59
60 static bool_t authnone_marshal (AUTH *, uint32_t, XDR *, struct mbuf *);
61 static void authnone_verf (AUTH *);
62 static bool_t authnone_validate (AUTH *, uint32_t, struct opaque_auth *,
63 struct mbuf **);
64 static bool_t authnone_refresh (AUTH *, void *);
65 static void authnone_destroy (AUTH *);
66
67 static const struct auth_ops authnone_ops = {
68 .ah_nextverf = authnone_verf,
69 .ah_marshal = authnone_marshal,
70 .ah_validate = authnone_validate,
71 .ah_refresh = authnone_refresh,
72 .ah_destroy = authnone_destroy,
73 };
74
75 struct authnone_private {
76 AUTH no_client;
77 char mclient[MAX_MARSHAL_SIZE];
78 u_int mcnt;
79 };
80
81 static struct authnone_private authnone_private;
82
83 static void
authnone_init(void * dummy)84 authnone_init(void *dummy)
85 {
86 struct authnone_private *ap = &authnone_private;
87 XDR xdrs;
88
89 ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
90 ap->no_client.ah_ops = &authnone_ops;
91 xdrmem_create(&xdrs, ap->mclient, MAX_MARSHAL_SIZE, XDR_ENCODE);
92 xdr_opaque_auth(&xdrs, &ap->no_client.ah_cred);
93 xdr_opaque_auth(&xdrs, &ap->no_client.ah_verf);
94 ap->mcnt = XDR_GETPOS(&xdrs);
95 XDR_DESTROY(&xdrs);
96 }
97 SYSINIT(authnone_init, SI_SUB_KMEM, SI_ORDER_ANY, authnone_init, NULL);
98
99 AUTH *
authnone_create(void)100 authnone_create(void)
101 {
102 struct authnone_private *ap = &authnone_private;
103
104 return (&ap->no_client);
105 }
106
107 /*ARGSUSED*/
108 static bool_t
authnone_marshal(AUTH * client,uint32_t xid,XDR * xdrs,struct mbuf * args)109 authnone_marshal(AUTH *client, uint32_t xid, XDR *xdrs, struct mbuf *args)
110 {
111 struct authnone_private *ap = &authnone_private;
112
113 KASSERT(xdrs != NULL, ("authnone_marshal: xdrs is null"));
114
115 if (!XDR_PUTBYTES(xdrs, ap->mclient, ap->mcnt))
116 return (FALSE);
117
118 return (xdr_putmbuf(xdrs, args));
119 }
120
121 /* All these unused parameters are required to keep ANSI-C from grumbling */
122 /*ARGSUSED*/
123 static void
authnone_verf(AUTH * client)124 authnone_verf(AUTH *client)
125 {
126 }
127
128 /*ARGSUSED*/
129 static bool_t
authnone_validate(AUTH * client,uint32_t xid,struct opaque_auth * opaque,struct mbuf ** mrepp)130 authnone_validate(AUTH *client, uint32_t xid, struct opaque_auth *opaque,
131 struct mbuf **mrepp)
132 {
133
134 return (TRUE);
135 }
136
137 /*ARGSUSED*/
138 static bool_t
authnone_refresh(AUTH * client,void * dummy)139 authnone_refresh(AUTH *client, void *dummy)
140 {
141
142 return (FALSE);
143 }
144
145 /*ARGSUSED*/
146 static void
authnone_destroy(AUTH * client)147 authnone_destroy(AUTH *client)
148 {
149 }
150