rpc.subproj/auth_none.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.1 (the "License").  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License.
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  26  * unrestricted use provided that this legend is included on all tape
  27  * media and as a part of the software program in whole or part.  Users
  28  * may copy or modify Sun RPC without charge, but are not authorized
  29  * to license or distribute it to anyone else except as part of a product or
  30  * program developed by the user.
  31  *
  32  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  33  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  34  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  35  *
  36  * Sun RPC is provided with no support and without any obligation on the
  37  * part of Sun Microsystems, Inc. to assist in its use, correction,
  38  * modification or enhancement.
  39  *
  40  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  41  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  42  * OR ANY PART THEREOF.
  43  *
  44  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  45  * or profits or other special, indirect and consequential damages, even if
  46  * Sun has been advised of the possibility of such damages.
  47  *
  48  * Sun Microsystems, Inc.
  49  * 2550 Garcia Avenue
  50  * Mountain View, California  94043
  51  */
  52
  53 #if defined(LIBC_SCCS) && !defined(lint)
  54 /*static char *sccsid = "from: @(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro";*/
  55 /*static char *sccsid = "from: @(#)auth_none.c  2.1 88/07/29 4.0 RPCSRC";*/
  56 static char *rcsid = "$Id: auth_none.c,v 1.3 2002/02/19 20:36:22 epeyton Exp $";
  57 #endif
  58
  59 /*
  60  * auth_none.c
  61  * Creates a client authentication handle for passing "null"
  62  * credentials and verifiers to remote systems.
  63  *
  64  * Copyright (C) 1984, Sun Microsystems, Inc.
  65  */
  66
  67 #include <stdlib.h>
  68 #include <sys/types.h>
  69 #include <netinet/in.h>
  70 #include <rpc/types.h>
  71 #include <rpc/xdr.h>
  72 #include <rpc/auth.h>
  73 #define MAX_MARSHEL_SIZE 20
  74
  75 extern bool_t   xdr_opaque_auth();
  76
  77 /*
  78  * Authenticator operations routines
  79  */
  80 static void     authnone_verf();
  81 static void     authnone_destroy();
  82 static bool_t   authnone_marshal();
  83 static bool_t   authnone_validate();
  84 static bool_t   authnone_refresh();
  85
  86 static struct auth_ops ops = {
  87         authnone_verf,
  88         authnone_marshal,
  89         authnone_validate,
  90         authnone_refresh,
  91         authnone_destroy
  92 };
  93
  94 static struct authnone_private {
  95         AUTH    no_client;
  96         char    marshalled_client[MAX_MARSHEL_SIZE];
  97         u_int   mcnt;
  98 } *authnone_private;
  99
 100 AUTH *
 101 authnone_create()
 102 {
 103         register struct authnone_private *ap = authnone_private;
 104         XDR xdr_stream;
 105         register XDR *xdrs;
 106
 107         if (ap == 0) {
 108                 ap = (struct authnone_private *)calloc(1, sizeof (*ap));
 109                 if (ap == 0)
 110                         return (0);
 111                 authnone_private = ap;
 112         }
 113         if (!ap->mcnt) {
 114                 ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
 115                 ap->no_client.ah_ops = &ops;
 116                 xdrs = &xdr_stream;
 117                 xdrmem_create(xdrs, ap->marshalled_client, (u_int)MAX_MARSHEL_SIZE,
 118                     XDR_ENCODE);
 119                 (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_cred);
 120                 (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_verf);
 121                 ap->mcnt = XDR_GETPOS(xdrs);
 122                 XDR_DESTROY(xdrs);
 123         }
 124         return (&ap->no_client);
 125 }
 126
 127 /*ARGSUSED*/
 128 static bool_t
 129 authnone_marshal(client, xdrs)
 130         AUTH *client;
 131         XDR *xdrs;
 132 {
 133         register struct authnone_private *ap = authnone_private;
 134
 135         if (ap == 0)
 136                 return (0);
 137         return ((*xdrs->x_ops->x_putbytes)(xdrs,
 138             ap->marshalled_client, ap->mcnt));
 139 }
 140
 141 static void
 142 authnone_verf()
 143 {
 144 }
 145
 146 static bool_t
 147 authnone_validate()
 148 {
 149
 150         return (TRUE);
 151 }
 152
 153 static bool_t
 154 authnone_refresh()
 155 {
 156
 157         return (FALSE);
 158 }
 159
 160 static void
 161 authnone_destroy()
 162 {
 163 }