1 /* $NetBSD: auth_none.c,v 1.16 2013/03/11 20:19:28 tron Exp $ */ 2 3 /* 4 * Copyright (c) 2010, Oracle America, Inc. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * * Redistributions in binary form must reproduce the above 13 * copyright notice, this list of conditions and the following 14 * disclaimer in the documentation and/or other materials 15 * provided with the distribution. 16 * * Neither the name of the "Oracle America, Inc." nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 27 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 #if defined(LIBC_SCCS) && !defined(lint) 36 #if 0 37 static char *sccsid = "@(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro"; 38 static char *sccsid = "@(#)auth_none.c 2.1 88/07/29 4.0 RPCSRC"; 39 #else 40 __RCSID("$NetBSD: auth_none.c,v 1.16 2013/03/11 20:19:28 tron Exp $"); 41 #endif 42 #endif 43 44 /* 45 * auth_none.c 46 * Creates a client authentication handle for passing "null" 47 * credentials and verifiers to remote systems. 48 * 49 * Copyright (C) 1984, Sun Microsystems, Inc. 50 */ 51 52 #include "namespace.h" 53 54 #include <assert.h> 55 #include <stdlib.h> 56 57 #include <rpc/types.h> 58 #include <rpc/xdr.h> 59 #include <rpc/auth.h> 60 61 #ifdef __weak_alias 62 __weak_alias(authnone_create,_authnone_create) 63 #endif 64 65 #define MAX_MARSHAL_SIZE 20 66 67 /* 68 * Authenticator operations routines 69 */ 70 71 static bool_t authnone_marshal(AUTH *, XDR *); 72 static void authnone_verf(AUTH *); 73 static bool_t authnone_validate(AUTH *, struct opaque_auth *); 74 static bool_t authnone_refresh(AUTH *); 75 static void authnone_destroy(AUTH *); 76 77 static const struct auth_ops ops = { 78 authnone_verf, 79 authnone_marshal, 80 authnone_validate, 81 authnone_refresh, 82 authnone_destroy 83 }; 84 85 static struct authnone_private { 86 AUTH no_client; 87 char marshalled_client[MAX_MARSHAL_SIZE]; 88 u_int mcnt; 89 } *authnone_private; 90 91 AUTH * 92 authnone_create(void) 93 { 94 struct authnone_private *ap = authnone_private; 95 XDR xdr_stream; 96 XDR *xdrs; 97 98 if (ap == 0) { 99 ap = (struct authnone_private *)calloc(1, sizeof (*ap)); 100 if (ap == 0) 101 return (0); 102 authnone_private = ap; 103 } 104 if (!ap->mcnt) { 105 ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth; 106 ap->no_client.ah_ops = &ops; 107 xdrs = &xdr_stream; 108 xdrmem_create(xdrs, ap->marshalled_client, 109 (u_int)MAX_MARSHAL_SIZE, XDR_ENCODE); 110 (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_cred); 111 (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_verf); 112 ap->mcnt = XDR_GETPOS(xdrs); 113 XDR_DESTROY(xdrs); 114 } 115 return (&ap->no_client); 116 } 117 118 /*ARGSUSED*/ 119 static bool_t 120 authnone_marshal(AUTH *client, 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(AUTH *client) 135 { 136 } 137 138 /*ARGSUSED*/ 139 static bool_t 140 authnone_validate(AUTH *client, struct opaque_auth *auth) 141 { 142 143 return (TRUE); 144 } 145 146 /*ARGSUSED*/ 147 static bool_t 148 authnone_refresh(AUTH *client) 149 { 150 151 return (FALSE); 152 } 153 154 /*ARGSUSED*/ 155 static void 156 authnone_destroy(AUTH *client) 157 { 158 } 159