lib/libc/rpc/auth_none.c

   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  * @(#)auth_none.c      1.19 87/08/11 Copyr 1984 Sun Micro
  30  * @(#)auth_none.c      2.1 88/07/29 4.0 RPCSRC
  31  * $FreeBSD: src/lib/libc/rpc/auth_none.c,v 1.9 1999/08/28 00:00:32 peter Exp $
  32  * $DragonFly: src/lib/libc/rpc/auth_none.c,v 1.4 2005/11/13 12:27:04 swildner Exp $
  33  */
  34
  35 /*
  36  * auth_none.c
  37  * Creates a client authentication handle for passing "null"
  38  * credentials and verifiers to remote systems.
  39  *
  40  * Copyright (C) 1984, Sun Microsystems, Inc.
  41  */
  42
  43 #include <stdlib.h>
  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(void)
  74 {
  75         struct authnone_private *ap = authnone_private;
  76         XDR xdr_stream;
  77         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                 xdr_opaque_auth(xdrs, &ap->no_client.ah_cred);
  92                 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(AUTH *client, XDR *xdrs)
 102 {
 103         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(void)
 113 {
 114 }
 115
 116 static bool_t
 117 authnone_validate(void)
 118 {
 119
 120         return (TRUE);
 121 }
 122
 123 static bool_t
 124 authnone_refresh(void)
 125 {
 126
 127         return (FALSE);
 128 }
 129
 130 static void
 131 authnone_destroy(void)
 132 {
 133 }