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 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
5 * unrestricted use provided that this legend is included on all tape
6 * media and as a part of the software program in whole or part. Users
7 * may copy or modify Sun RPC without charge, but are not authorized
8 * to license or distribute it to anyone else except as part of a product or
9 * program developed by the user.
10 *
11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
14 *
15 * Sun RPC is provided with no support and without any obligation on the
16 * part of Sun Microsystems, Inc. to assist in its use, correction,
17 * modification or enhancement.
18 *
19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
21 * OR ANY PART THEREOF.
22 *
23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
24 * or profits or other special, indirect and consequential damages, even if
25 * Sun has been advised of the possibility of such damages.
26 *
27 * Sun Microsystems, Inc.
28 * 2550 Garcia Avenue
29 * Mountain View, California 94043
30 */
31
32 #if defined(LIBC_SCCS) && !defined(lint)
33 static char *sccsid2 = "@(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro";
34 static char *sccsid = "@(#)auth_none.c 2.1 88/07/29 4.0 RPCSRC";
35 #endif
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD: src/sys/rpc/auth_none.c,v 1.2 2008/11/03 10:38:00 dfr Exp $");
38
39 /*
40 * auth_none.c
41 * Creates a client authentication handle for passing "null"
42 * credentials and verifiers to remote systems.
43 *
44 * Copyright (C) 1984, Sun Microsystems, Inc.
45 */
46
47 #include <sys/param.h>
48 #include <sys/systm.h>
49 #include <sys/kernel.h>
50 #include <sys/lock.h>
51 #include <sys/malloc.h>
52 #include <sys/mutex.h>
53
54 #include <rpc/types.h>
55 #include <rpc/xdr.h>
56 #include <rpc/auth.h>
57 #include <rpc/clnt.h>
58
59 #define MAX_MARSHAL_SIZE 20
60
61 /*
62 * Authenticator operations routines
63 */
64
65 static bool_t authnone_marshal (AUTH *, uint32_t, XDR *, struct mbuf *);
66 static void authnone_verf (AUTH *);
67 static bool_t authnone_validate (AUTH *, uint32_t, struct opaque_auth *,
68 struct mbuf **);
69 static bool_t authnone_refresh (AUTH *, void *);
70 static void authnone_destroy (AUTH *);
71
72 static struct auth_ops authnone_ops = {
73 .ah_nextverf = authnone_verf,
74 .ah_marshal = authnone_marshal,
75 .ah_validate = authnone_validate,
76 .ah_refresh = authnone_refresh,
77 .ah_destroy = authnone_destroy,
78 };
79
80 struct authnone_private {
81 AUTH no_client;
82 char mclient[MAX_MARSHAL_SIZE];
83 u_int mcnt;
84 };
85
86 static struct authnone_private authnone_private;
87
88 static void
89 authnone_init(void *dummy)
90 {
91 struct authnone_private *ap = &authnone_private;
92 XDR xdrs;
93
94 ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
95 ap->no_client.ah_ops = &authnone_ops;
96 xdrmem_create(&xdrs, ap->mclient, MAX_MARSHAL_SIZE, XDR_ENCODE);
97 xdr_opaque_auth(&xdrs, &ap->no_client.ah_cred);
98 xdr_opaque_auth(&xdrs, &ap->no_client.ah_verf);
99 ap->mcnt = XDR_GETPOS(&xdrs);
100 XDR_DESTROY(&xdrs);
101 }
102 SYSINIT(authnone_init, SI_SUB_KMEM, SI_ORDER_ANY, authnone_init, NULL);
103
104 AUTH *
105 authnone_create()
106 {
107 struct authnone_private *ap = &authnone_private;
108
109 return (&ap->no_client);
110 }
111
112 /*ARGSUSED*/
113 static bool_t
114 authnone_marshal(AUTH *client, uint32_t xid, XDR *xdrs, struct mbuf *args)
115 {
116 struct authnone_private *ap = &authnone_private;
117
118 KASSERT(xdrs != NULL, ("authnone_marshal: xdrs is null"));
119
120 if (!XDR_PUTBYTES(xdrs, ap->mclient, ap->mcnt))
121 return (FALSE);
122
123 xdrmbuf_append(xdrs, args);
124
125 return (TRUE);
126 }
127
128 /* All these unused parameters are required to keep ANSI-C from grumbling */
129 /*ARGSUSED*/
130 static void
131 authnone_verf(AUTH *client)
132 {
133 }
134
135 /*ARGSUSED*/
136 static bool_t
137 authnone_validate(AUTH *client, uint32_t xid, struct opaque_auth *opaque,
138 struct mbuf **mrepp)
139 {
140
141 return (TRUE);
142 }
143
144 /*ARGSUSED*/
145 static bool_t
146 authnone_refresh(AUTH *client, void *dummy)
147 {
148
149 return (FALSE);
150 }
151
152 /*ARGSUSED*/
153 static void
154 authnone_destroy(AUTH *client)
155 {
156 }
157
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