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/auth.h>
  44
  45 #define MAX_MARSHEL_SIZE 20
  46
  47 extern bool_t xdr_opaque_auth (XDR *, struct opaque_auth *);
  48
  49 /*
  50  * Authenticator operations routines
  51  */
  52 static void authnone_verf (AUTH *);
  53 static void authnone_destroy (AUTH *);
  54 static bool_t authnone_marshal (AUTH *, XDR *);
  55 static bool_t authnone_validate (AUTH *, struct opaque_auth *);
  56 static bool_t authnone_refresh (AUTH *);
  57
  58 static struct auth_ops ops =
  59 {
  60   authnone_verf,
  61   authnone_marshal,
  62   authnone_validate,
  63   authnone_refresh,
  64   authnone_destroy
  65 };
  66
  67 static struct authnone_private
  68   {
  69     AUTH no_client;
  70     char marshalled_client[MAX_MARSHEL_SIZE];
  71     u_int mcnt;
  72   }
  73  *authnone_private;
  74
  75 AUTH *
  76 authnone_create (void)
  77 {
  78   struct authnone_private *ap = authnone_private;
  79   XDR xdr_stream;
  80   XDR *xdrs;
  81
  82   if (ap == 0)
  83     {
  84       ap = (struct authnone_private *) calloc (1, sizeof (*ap));
  85       if (ap == 0)
  86         return NULL;
  87       authnone_private = ap;
  88     }
  89   if (!ap->mcnt)
  90     {
  91       ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
  92       ap->no_client.ah_ops = &ops;
  93       xdrs = &xdr_stream;
  94       xdrmem_create (xdrs, ap->marshalled_client, (u_int) MAX_MARSHEL_SIZE,
  95                      XDR_ENCODE);
  96       (void) xdr_opaque_auth (xdrs, &ap->no_client.ah_cred);
  97       (void) xdr_opaque_auth (xdrs, &ap->no_client.ah_verf);
  98       ap->mcnt = XDR_GETPOS (xdrs);
  99       XDR_DESTROY (xdrs);
 100     }
 101   return (&ap->no_client);
 102 }
 103
 104 /*ARGSUSED */
 105 static bool_t
 106 authnone_marshal (AUTH *client, XDR *xdrs)
 107 {
 108   struct authnone_private *ap = authnone_private;
 109
 110   if (ap == 0)
 111     return (0);
 112   return ((*xdrs->x_ops->x_putbytes) (xdrs,
 113                                       ap->marshalled_client, ap->mcnt));
 114 }
 115
 116 static void
 117 authnone_verf (AUTH *auth)
 118 {
 119 }
 120
 121 static bool_t
 122 authnone_validate (AUTH *auth, struct opaque_auth *oa)
 123 {
 124   return TRUE;
 125 }
 126
 127 static bool_t
 128 authnone_refresh (AUTH *auth)
 129 {
 130   return FALSE;
 131 }
 132
 133 static void
 134 authnone_destroy (AUTH *auth)
 135 {
 136 }