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auth_none.c revision 1.1 
      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 = "$Id: auth_none.c,v 1.1 1993/10/07 07:29:36 cgd Exp $";
     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 <rpc/types.h>
     45 #include <rpc/xdr.h>
     46 #include <rpc/auth.h>
     47 #define MAX_MARSHEL_SIZE 20
     48 
     49 /*
     50  * Authenticator operations routines
     51  */
     52 static void	authnone_verf();
     53 static void	authnone_destroy();
     54 static bool_t	authnone_marshal();
     55 static bool_t	authnone_validate();
     56 static bool_t	authnone_refresh();
     57 
     58 static struct auth_ops ops = {
     59 	authnone_verf,
     60 	authnone_marshal,
     61 	authnone_validate,
     62 	authnone_refresh,
     63 	authnone_destroy
     64 };
     65 
     66 static struct authnone_private {
     67 	AUTH	no_client;
     68 	char	marshalled_client[MAX_MARSHEL_SIZE];
     69 	u_int	mcnt;
     70 } *authnone_private;
     71 
     72 AUTH *
     73 authnone_create()
     74 {
     75 	register struct authnone_private *ap = authnone_private;
     76 	XDR xdr_stream;
     77 	register XDR *xdrs;
     78 
     79 	if (ap == 0) {
     80 		ap = (struct authnone_private *)calloc(1, sizeof (*ap));
     81 		if (ap == 0)
     82 			return (0);
     83 		authnone_private = ap;
     84 	}
     85 	if (!ap->mcnt) {
     86 		ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
     87 		ap->no_client.ah_ops = &ops;
     88 		xdrs = &xdr_stream;
     89 		xdrmem_create(xdrs, ap->marshalled_client, (u_int)MAX_MARSHEL_SIZE,
     90 		    XDR_ENCODE);
     91 		(void)xdr_opaque_auth(xdrs, &ap->no_client.ah_cred);
     92 		(void)xdr_opaque_auth(xdrs, &ap->no_client.ah_verf);
     93 		ap->mcnt = XDR_GETPOS(xdrs);
     94 		XDR_DESTROY(xdrs);
     95 	}
     96 	return (&ap->no_client);
     97 }
     98 
     99 /*ARGSUSED*/
    100 static bool_t
    101 authnone_marshal(client, xdrs)
    102 	AUTH *client;
    103 	XDR *xdrs;
    104 {
    105 	register struct authnone_private *ap = authnone_private;
    106 
    107 	if (ap == 0)
    108 		return (0);
    109 	return ((*xdrs->x_ops->x_putbytes)(xdrs,
    110 	    ap->marshalled_client, ap->mcnt));
    111 }
    112 
    113 static void
    114 authnone_verf()
    115 {
    116 }
    117 
    118 static bool_t
    119 authnone_validate()
    120 {
    121 
    122 	return (TRUE);
    123 }
    124 
    125 static bool_t
    126 authnone_refresh()
    127 {
    128 
    129 	return (FALSE);
    130 }
    131 
    132 static void
    133 authnone_destroy()
    134 {
    135 }
    136