rpc.subproj/auth_none.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  27  * unrestricted use provided that this legend is included on all tape
  28  * media and as a part of the software program in whole or part.  Users
  29  * may copy or modify Sun RPC without charge, but are not authorized
  30  * to license or distribute it to anyone else except as part of a product or
  31  * program developed by the user.
  32  *
  33  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  34  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  35  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  36  *
  37  * Sun RPC is provided with no support and without any obligation on the
  38  * part of Sun Microsystems, Inc. to assist in its use, correction,
  39  * modification or enhancement.
  40  *
  41  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  42  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  43  * OR ANY PART THEREOF.
  44  *
  45  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  46  * or profits or other special, indirect and consequential damages, even if
  47  * Sun has been advised of the possibility of such damages.
  48  *
  49  * Sun Microsystems, Inc.
  50  * 2550 Garcia Avenue
  51  * Mountain View, California  94043
  52  */
  53
  54 #if defined(LIBC_SCCS) && !defined(lint)
  55 /*static char *sccsid = "from: @(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro";*/
  56 /*static char *sccsid = "from: @(#)auth_none.c  2.1 88/07/29 4.0 RPCSRC";*/
  57 static char *rcsid = "$Id: auth_none.c,v 1.3 2002/02/19 20:36:22 epeyton Exp $";
  58 #endif
  59
  60 /*
  61  * auth_none.c
  62  * Creates a client authentication handle for passing "null"
  63  * credentials and verifiers to remote systems.
  64  *
  65  * Copyright (C) 1984, Sun Microsystems, Inc.
  66  */
  67
  68 #include <stdlib.h>
  69 #include <sys/types.h>
  70 #include <netinet/in.h>
  71 #include <rpc/types.h>
  72 #include <rpc/xdr.h>
  73 #include <rpc/auth.h>
  74 #define MAX_MARSHEL_SIZE 20
  75
  76 extern bool_t   xdr_opaque_auth();
  77
  78 /*
  79  * Authenticator operations routines
  80  */
  81 static void     authnone_verf();
  82 static void     authnone_destroy();
  83 static bool_t   authnone_marshal();
  84 static bool_t   authnone_validate();
  85 static bool_t   authnone_refresh();
  86
  87 static struct auth_ops ops = {
  88         authnone_verf,
  89         authnone_marshal,
  90         authnone_validate,
  91         authnone_refresh,
  92         authnone_destroy
  93 };
  94
  95 static struct authnone_private {
  96         AUTH    no_client;
  97         char    marshalled_client[MAX_MARSHEL_SIZE];
  98         u_int   mcnt;
  99 } *authnone_private;
 100
 101 AUTH *
 102 authnone_create()
 103 {
 104         register struct authnone_private *ap = authnone_private;
 105         XDR xdr_stream;
 106         register XDR *xdrs;
 107
 108         if (ap == 0) {
 109                 ap = (struct authnone_private *)calloc(1, sizeof (*ap));
 110                 if (ap == 0)
 111                         return (0);
 112                 authnone_private = ap;
 113         }
 114         if (!ap->mcnt) {
 115                 ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth;
 116                 ap->no_client.ah_ops = &ops;
 117                 xdrs = &xdr_stream;
 118                 xdrmem_create(xdrs, ap->marshalled_client, (u_int)MAX_MARSHEL_SIZE,
 119                     XDR_ENCODE);
 120                 (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_cred);
 121                 (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_verf);
 122                 ap->mcnt = XDR_GETPOS(xdrs);
 123                 XDR_DESTROY(xdrs);
 124         }
 125         return (&ap->no_client);
 126 }
 127
 128 /*ARGSUSED*/
 129 static bool_t
 130 authnone_marshal(client, xdrs)
 131         AUTH *client;
 132         XDR *xdrs;
 133 {
 134         register struct authnone_private *ap = authnone_private;
 135
 136         if (ap == 0)
 137                 return (0);
 138         return ((*xdrs->x_ops->x_putbytes)(xdrs,
 139             ap->marshalled_client, ap->mcnt));
 140 }
 141
 142 static void
 143 authnone_verf()
 144 {
 145 }
 146
 147 static bool_t
 148 authnone_validate()
 149 {
 150
 151         return (TRUE);
 152 }
 153
 154 static bool_t
 155 authnone_refresh()
 156 {
 157
 158         return (FALSE);
 159 }
 160
 161 static void
 162 authnone_destroy()
 163 {
 164 }