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auth_none.c revision 1.8 
      1 /*	$NetBSD: auth_none.c,v 1.8 1998/02/12 01:57:27 lukem 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 #include <sys/cdefs.h>
     33 #if defined(LIBC_SCCS) && !defined(lint)
     34 #if 0
     35 static char *sccsid = "@(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro";
     36 static char *sccsid = "@(#)auth_none.c	2.1 88/07/29 4.0 RPCSRC";
     37 #else
     38 __RCSID("$NetBSD: auth_none.c,v 1.8 1998/02/12 01:57:27 lukem Exp $");
     39 #endif
     40 #endif
     41 
     42 /*
     43  * auth_none.c
     44  * Creates a client authentication handle for passing "null"
     45  * credentials and verifiers to remote systems.
     46  *
     47  * Copyright (C) 1984, Sun Microsystems, Inc.
     48  */
     49 
     50 #include "namespace.h"
     51 #include <stdlib.h>
     52 #include <rpc/types.h>
     53 #include <rpc/xdr.h>
     54 #include <rpc/auth.h>
     55 
     56 #ifdef __weak_alias
     57 __weak_alias(authnone_create,_authnone_create);
     58 #endif
     59 
     60 #define MAX_MARSHEL_SIZE 20
     61 
     62 /*
     63  * Authenticator operations routines
     64  */
     65 
     66 static bool_t authnone_marshal __P((AUTH *, XDR *));
     67 static void authnone_verf __P((AUTH *));
     68 static bool_t authnone_validate __P((AUTH *, struct opaque_auth *));
     69 static bool_t authnone_refresh __P((AUTH *));
     70 static void authnone_destroy __P((AUTH *));
     71 
     72 static struct auth_ops ops = {
     73 	authnone_verf,
     74 	authnone_marshal,
     75 	authnone_validate,
     76 	authnone_refresh,
     77 	authnone_destroy
     78 };
     79 
     80 static struct authnone_private {
     81 	AUTH	no_client;
     82 	char	marshalled_client[MAX_MARSHEL_SIZE];
     83 	u_int	mcnt;
     84 } *authnone_private;
     85 
     86 AUTH *
     87 authnone_create()
     88 {
     89 	register struct authnone_private *ap = authnone_private;
     90 	XDR xdr_stream;
     91 	register XDR *xdrs;
     92 
     93 	if (ap == 0) {
     94 		ap = (struct authnone_private *)calloc(1, sizeof (*ap));
     95 		if (ap == 0)
     96 			return (0);
     97 		authnone_private = ap;
     98 	}
     99 	if (!ap->mcnt) {
    100 		ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
    101 		ap->no_client.ah_ops = &ops;
    102 		xdrs = &xdr_stream;
    103 		xdrmem_create(xdrs, ap->marshalled_client, (u_int)MAX_MARSHEL_SIZE,
    104 		    XDR_ENCODE);
    105 		(void)xdr_opaque_auth(xdrs, &ap->no_client.ah_cred);
    106 		(void)xdr_opaque_auth(xdrs, &ap->no_client.ah_verf);
    107 		ap->mcnt = XDR_GETPOS(xdrs);
    108 		XDR_DESTROY(xdrs);
    109 	}
    110 	return (&ap->no_client);
    111 }
    112 
    113 /*ARGSUSED*/
    114 static bool_t
    115 authnone_marshal(client, xdrs)
    116 	AUTH *client;
    117 	XDR *xdrs;
    118 {
    119 	register struct authnone_private *ap = authnone_private;
    120 
    121 	if (ap == 0)
    122 		return (0);
    123 	return ((*xdrs->x_ops->x_putbytes)(xdrs,
    124 	    ap->marshalled_client, ap->mcnt));
    125 }
    126 
    127 /*ARGSUSED*/
    128 static void
    129 authnone_verf(client)
    130 	AUTH *client;
    131 {
    132 }
    133 
    134 /*ARGSUSED*/
    135 static bool_t
    136 authnone_validate(client, auth)
    137 	AUTH *client;
    138 	struct opaque_auth *auth;
    139 {
    140 
    141 	return (TRUE);
    142 }
    143 
    144 /*ARGSUSED*/
    145 static bool_t
    146 authnone_refresh(client)
    147 	AUTH *client;
    148 {
    149 
    150 	return (FALSE);
    151 }
    152 
    153 /*ARGSUSED*/
    154 static void
    155 authnone_destroy(client)
    156 	AUTH *client;
    157 {
    158 }
    159