FreeBSD/Linux Kernel Cross Reference
sys/rpc/auth_none.c
1 /* $NetBSD: auth_none.c,v 1.13 2000/01/22 22:19:17 mycroft Exp $ */
2
3 /*-
4 * Copyright (c) 2009, Sun Microsystems, 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 are met:
9 * - Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 * - Neither the name of Sun Microsystems, Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived
16 * from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #if defined(LIBC_SCCS) && !defined(lint)
32 static char *sccsid2 = "@(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro";
33 static char *sccsid = "@(#)auth_none.c 2.1 88/07/29 4.0 RPCSRC";
34 #endif
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD: releng/11.2/sys/rpc/auth_none.c 331722 2018-03-29 02:50:57Z eadler $");
37
38 /*
39 * auth_none.c
40 * Creates a client authentication handle for passing "null"
41 * credentials and verifiers to remote systems.
42 *
43 * Copyright (C) 1984, Sun Microsystems, Inc.
44 */
45
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #include <sys/kernel.h>
49 #include <sys/lock.h>
50 #include <sys/malloc.h>
51 #include <sys/mutex.h>
52
53 #include <rpc/types.h>
54 #include <rpc/xdr.h>
55 #include <rpc/auth.h>
56 #include <rpc/clnt.h>
57
58 #define MAX_MARSHAL_SIZE 20
59
60 /*
61 * Authenticator operations routines
62 */
63
64 static bool_t authnone_marshal (AUTH *, uint32_t, XDR *, struct mbuf *);
65 static void authnone_verf (AUTH *);
66 static bool_t authnone_validate (AUTH *, uint32_t, struct opaque_auth *,
67 struct mbuf **);
68 static bool_t authnone_refresh (AUTH *, void *);
69 static void authnone_destroy (AUTH *);
70
71 static struct auth_ops authnone_ops = {
72 .ah_nextverf = authnone_verf,
73 .ah_marshal = authnone_marshal,
74 .ah_validate = authnone_validate,
75 .ah_refresh = authnone_refresh,
76 .ah_destroy = authnone_destroy,
77 };
78
79 struct authnone_private {
80 AUTH no_client;
81 char mclient[MAX_MARSHAL_SIZE];
82 u_int mcnt;
83 };
84
85 static struct authnone_private authnone_private;
86
87 static void
88 authnone_init(void *dummy)
89 {
90 struct authnone_private *ap = &authnone_private;
91 XDR xdrs;
92
93 ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
94 ap->no_client.ah_ops = &authnone_ops;
95 xdrmem_create(&xdrs, ap->mclient, MAX_MARSHAL_SIZE, XDR_ENCODE);
96 xdr_opaque_auth(&xdrs, &ap->no_client.ah_cred);
97 xdr_opaque_auth(&xdrs, &ap->no_client.ah_verf);
98 ap->mcnt = XDR_GETPOS(&xdrs);
99 XDR_DESTROY(&xdrs);
100 }
101 SYSINIT(authnone_init, SI_SUB_KMEM, SI_ORDER_ANY, authnone_init, NULL);
102
103 AUTH *
104 authnone_create()
105 {
106 struct authnone_private *ap = &authnone_private;
107
108 return (&ap->no_client);
109 }
110
111 /*ARGSUSED*/
112 static bool_t
113 authnone_marshal(AUTH *client, uint32_t xid, XDR *xdrs, struct mbuf *args)
114 {
115 struct authnone_private *ap = &authnone_private;
116
117 KASSERT(xdrs != NULL, ("authnone_marshal: xdrs is null"));
118
119 if (!XDR_PUTBYTES(xdrs, ap->mclient, ap->mcnt))
120 return (FALSE);
121
122 xdrmbuf_append(xdrs, args);
123
124 return (TRUE);
125 }
126
127 /* All these unused parameters are required to keep ANSI-C from grumbling */
128 /*ARGSUSED*/
129 static void
130 authnone_verf(AUTH *client)
131 {
132 }
133
134 /*ARGSUSED*/
135 static bool_t
136 authnone_validate(AUTH *client, uint32_t xid, struct opaque_auth *opaque,
137 struct mbuf **mrepp)
138 {
139
140 return (TRUE);
141 }
142
143 /*ARGSUSED*/
144 static bool_t
145 authnone_refresh(AUTH *client, void *dummy)
146 {
147
148 return (FALSE);
149 }
150
151 /*ARGSUSED*/
152 static void
153 authnone_destroy(AUTH *client)
154 {
155 }
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