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auth_none.c revision 1.2 
      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 1.2 1994/12/04 01:13:11 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 <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