sunrpc/auth_none.c

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