lib/libc/rpc/auth_none.c

   1 /*      $NetBSD: auth_none.c,v 1.14 2001/01/16 15:46:52 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 1.14 2001/01/16 15:46:52 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
  52 #include <assert.h>
  53 #include <stdlib.h>
  54
  55 #include <rpc/types.h>
  56 #include <rpc/xdr.h>
  57 #include <rpc/auth.h>
  58
  59 #ifdef __weak_alias
  60 __weak_alias(authnone_create,_authnone_create)
  61 #endif
  62
  63 #define MAX_MARSHAL_SIZE 20
  64
  65 /*
  66  * Authenticator operations routines
  67  */
  68
  69 static bool_t authnone_marshal __P((AUTH *, XDR *));
  70 static void authnone_verf __P((AUTH *));
  71 static bool_t authnone_validate __P((AUTH *, struct opaque_auth *));
  72 static bool_t authnone_refresh __P((AUTH *));
  73 static void authnone_destroy __P((AUTH *));
  74
  75 static const struct auth_ops ops = {
  76         authnone_verf,
  77         authnone_marshal,
  78         authnone_validate,
  79         authnone_refresh,
  80         authnone_destroy
  81 };
  82
  83 static struct authnone_private {
  84         AUTH    no_client;
  85         char    marshalled_client[MAX_MARSHAL_SIZE];
  86         u_int   mcnt;
  87 } *authnone_private;
  88
  89 AUTH *
  90 authnone_create()
  91 {
  92         struct authnone_private *ap = authnone_private;
  93         XDR xdr_stream;
  94         XDR *xdrs;
  95
  96         if (ap == 0) {
  97                 ap = (struct authnone_private *)calloc(1, sizeof (*ap));
  98                 if (ap == 0)
  99                         return (0);
 100                 authnone_private = ap;
 101         }
 102         if (!ap->mcnt) {
 103                 ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
 104                 ap->no_client.ah_ops = &ops;
 105                 xdrs = &xdr_stream;
 106                 xdrmem_create(xdrs, ap->marshalled_client,
 107                     (u_int)MAX_MARSHAL_SIZE, XDR_ENCODE);
 108                 (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_cred);
 109                 (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_verf);
 110                 ap->mcnt = XDR_GETPOS(xdrs);
 111                 XDR_DESTROY(xdrs);
 112         }
 113         return (&ap->no_client);
 114 }
 115
 116 /*ARGSUSED*/
 117 static bool_t
 118 authnone_marshal(client, xdrs)
 119         AUTH *client;
 120         XDR *xdrs;
 121 {
 122         struct authnone_private *ap = authnone_private;
 123
 124         _DIAGASSERT(xdrs != NULL);
 125
 126         if (ap == 0)
 127                 return (0);
 128         return ((*xdrs->x_ops->x_putbytes)(xdrs,
 129             ap->marshalled_client, ap->mcnt));
 130 }
 131
 132 /*ARGSUSED*/
 133 static void
 134 authnone_verf(client)
 135         AUTH *client;
 136 {
 137 }
 138
 139 /*ARGSUSED*/
 140 static bool_t
 141 authnone_validate(client, auth)
 142         AUTH *client;
 143         struct opaque_auth *auth;
 144 {
 145
 146         return (TRUE);
 147 }
 148
 149 /*ARGSUSED*/
 150 static bool_t
 151 authnone_refresh(client)
 152         AUTH *client;
 153 {
 154
 155         return (FALSE);
 156 }
 157
 158 /*ARGSUSED*/
 159 static void
 160 authnone_destroy(client)
 161         AUTH *client;
 162 {
 163 }