1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 /* 24 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 /* 30 * Portions of this source code were derived from Berkeley 31 * 4.3 BSD under license from the Regents of the University of 32 * California. 33 */ 34 35 #pragma ident "%Z%%M% %I% %E% SMI" 36 37 /* 38 * auth_none.c 39 * Creates a client authentication handle for passing "null" 40 * credentials and verifiers to remote systems. 41 */ 42 43 #include "mt.h" 44 #include "rpc_mt.h" 45 #include <stdlib.h> 46 #include <rpc/types.h> 47 #include <rpc/xdr.h> 48 #include <rpc/auth.h> 49 #define MAX_MARSHEL_SIZE 20 50 51 52 extern bool_t xdr_opaque_auth(XDR *, struct opaque_auth *); 53 54 static struct auth_ops *authnone_ops(void); 55 56 static struct authnone_private { 57 AUTH no_client; 58 char marshalled_client[MAX_MARSHEL_SIZE]; 59 uint_t mcnt; 60 } *authnone_private; 61 62 63 AUTH * 64 authnone_create(void) 65 { 66 struct authnone_private *ap; 67 XDR xdr_stream; 68 XDR *xdrs; 69 extern mutex_t authnone_lock; 70 71 /* VARIABLES PROTECTED BY authnone_lock: ap */ 72 73 (void) mutex_lock(&authnone_lock); 74 ap = authnone_private; 75 if (ap == NULL) { 76 ap = calloc(1, sizeof (*ap)); 77 if (ap == NULL) { 78 (void) mutex_unlock(&authnone_lock); 79 return (NULL); 80 } 81 authnone_private = ap; 82 } 83 if (!ap->mcnt) { 84 ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth; 85 ap->no_client.ah_ops = authnone_ops(); 86 xdrs = &xdr_stream; 87 xdrmem_create(xdrs, ap->marshalled_client, 88 (uint_t)MAX_MARSHEL_SIZE, XDR_ENCODE); 89 (void) xdr_opaque_auth(xdrs, &ap->no_client.ah_cred); 90 (void) xdr_opaque_auth(xdrs, &ap->no_client.ah_verf); 91 ap->mcnt = XDR_GETPOS(xdrs); 92 XDR_DESTROY(xdrs); 93 } 94 (void) mutex_unlock(&authnone_lock); 95 return (&ap->no_client); 96 } 97 98 /*ARGSUSED*/ 99 static bool_t 100 authnone_marshal(AUTH *client, XDR *xdrs) 101 { 102 struct authnone_private *ap; 103 bool_t res; 104 extern mutex_t authnone_lock; 105 106 (void) mutex_lock(&authnone_lock); 107 ap = authnone_private; 108 if (ap == NULL) { 109 (void) mutex_unlock(&authnone_lock); 110 return (FALSE); 111 } 112 res = (*xdrs->x_ops->x_putbytes)(xdrs, 113 ap->marshalled_client, ap->mcnt); 114 (void) mutex_unlock(&authnone_lock); 115 return (res); 116 } 117 118 /* All these unused parameters are required to keep ANSI-C from grumbling */ 119 /*ARGSUSED*/ 120 static void 121 authnone_verf(AUTH *client) 122 { 123 } 124 125 /*ARGSUSED*/ 126 static bool_t 127 authnone_validate(AUTH *client, struct opaque_auth *opaque) 128 { 129 return (TRUE); 130 } 131 132 /*ARGSUSED*/ 133 static bool_t 134 authnone_refresh(AUTH *client, void *dummy) 135 { 136 return (FALSE); 137 } 138 139 /*ARGSUSED*/ 140 static void 141 authnone_destroy(AUTH *client) 142 { 143 } 144 145 static struct auth_ops * 146 authnone_ops(void) 147 { 148 static struct auth_ops ops; 149 extern mutex_t ops_lock; 150 151 /* VARIABLES PROTECTED BY ops_lock: ops */ 152 153 (void) mutex_lock(&ops_lock); 154 if (ops.ah_nextverf == NULL) { 155 ops.ah_nextverf = authnone_verf; 156 ops.ah_marshal = authnone_marshal; 157 ops.ah_validate = authnone_validate; 158 ops.ah_refresh = authnone_refresh; 159 ops.ah_destroy = authnone_destroy; 160 } 161 (void) mutex_unlock(&ops_lock); 162 return (&ops); 163 } 164