xref: /freebsd/lib/libc/rpc/auth_none.c (revision c3aac50f284c6cca5b4f2eb46aaa13812cb8b630)
1 /*
2  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3  * unrestricted use provided that this legend is included on all tape
4  * media and as a part of the software program in whole or part.  Users
5  * may copy or modify Sun RPC without charge, but are not authorized
6  * to license or distribute it to anyone else except as part of a product or
7  * program developed by the user.
8  *
9  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12  *
13  * Sun RPC is provided with no support and without any obligation on the
14  * part of Sun Microsystems, Inc. to assist in its use, correction,
15  * modification or enhancement.
16  *
17  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19  * OR ANY PART THEREOF.
20  *
21  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22  * or profits or other special, indirect and consequential damages, even if
23  * Sun has been advised of the possibility of such damages.
24  *
25  * Sun Microsystems, Inc.
26  * 2550 Garcia Avenue
27  * Mountain View, California  94043
28  */
29 
30 #if defined(LIBC_SCCS) && !defined(lint)
31 /*static char *sccsid = "from: @(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro";*/
32 /*static char *sccsid = "from: @(#)auth_none.c	2.1 88/07/29 4.0 RPCSRC";*/
33 static char *rcsid = "$FreeBSD$";
34 #endif
35 
36 /*
37  * auth_none.c
38  * Creates a client authentication handle for passing "null"
39  * credentials and verifiers to remote systems.
40  *
41  * Copyright (C) 1984, Sun Microsystems, Inc.
42  */
43 
44 #include <stdlib.h>
45 #include <rpc/types.h>
46 #include <rpc/xdr.h>
47 #include <rpc/auth.h>
48 #define MAX_MARSHEL_SIZE 20
49 
50 /*
51  * Authenticator operations routines
52  */
53 static void	authnone_verf();
54 static void	authnone_destroy();
55 static bool_t	authnone_marshal();
56 static bool_t	authnone_validate();
57 static bool_t	authnone_refresh();
58 
59 static struct auth_ops ops = {
60 	authnone_verf,
61 	authnone_marshal,
62 	authnone_validate,
63 	authnone_refresh,
64 	authnone_destroy
65 };
66 
67 static struct authnone_private {
68 	AUTH	no_client;
69 	char	marshalled_client[MAX_MARSHEL_SIZE];
70 	u_int	mcnt;
71 } *authnone_private;
72 
73 AUTH *
74 authnone_create()
75 {
76 	register struct authnone_private *ap = authnone_private;
77 	XDR xdr_stream;
78 	register XDR *xdrs;
79 
80 	if (ap == 0) {
81 		ap = (struct authnone_private *)calloc(1, sizeof (*ap));
82 		if (ap == 0)
83 			return (0);
84 		authnone_private = ap;
85 	}
86 	if (!ap->mcnt) {
87 		ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
88 		ap->no_client.ah_ops = &ops;
89 		xdrs = &xdr_stream;
90 		xdrmem_create(xdrs, ap->marshalled_client, (u_int)MAX_MARSHEL_SIZE,
91 		    XDR_ENCODE);
92 		(void)xdr_opaque_auth(xdrs, &ap->no_client.ah_cred);
93 		(void)xdr_opaque_auth(xdrs, &ap->no_client.ah_verf);
94 		ap->mcnt = XDR_GETPOS(xdrs);
95 		XDR_DESTROY(xdrs);
96 	}
97 	return (&ap->no_client);
98 }
99 
100 /*ARGSUSED*/
101 static bool_t
102 authnone_marshal(client, xdrs)
103 	AUTH *client;
104 	XDR *xdrs;
105 {
106 	register struct authnone_private *ap = authnone_private;
107 
108 	if (ap == 0)
109 		return (0);
110 	return ((*xdrs->x_ops->x_putbytes)(xdrs,
111 	    ap->marshalled_client, ap->mcnt));
112 }
113 
114 static void
115 authnone_verf()
116 {
117 }
118 
119 static bool_t
120 authnone_validate()
121 {
122 
123 	return (TRUE);
124 }
125 
126 static bool_t
127 authnone_refresh()
128 {
129 
130 	return (FALSE);
131 }
132 
133 static void
134 authnone_destroy()
135 {
136 }
137