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 * Copyright 2003 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 26 /* All Rights Reserved */ 27 /* 28 * Portions of this source code were derived from Berkeley 29 * 4.3 BSD under license from the Regents of the University of 30 * California. 31 */ 32 33 #pragma ident "%Z%%M% %I% %E% SMI" 34 35 /* 36 * auth_none.c 37 * Creates a client authentication handle for passing "null" 38 * credentials and verifiers to remote systems. 39 */ 40 41 #include "mt.h" 42 #include "rpc_mt.h" 43 #include <rpc/types.h> 44 #include <rpc/trace.h> 45 #include <rpc/xdr.h> 46 #include <rpc/auth.h> 47 #define MAX_MARSHEL_SIZE 20 48 49 50 extern bool_t xdr_opaque_auth(); 51 52 static struct auth_ops *authnone_ops(); 53 54 static struct authnone_private { 55 AUTH no_client; 56 char marshalled_client[MAX_MARSHEL_SIZE]; 57 uint_t mcnt; 58 } *authnone_private; 59 60 char *calloc(); 61 62 AUTH * 63 authnone_create() 64 { 65 struct authnone_private *ap; 66 XDR xdr_stream; 67 XDR *xdrs; 68 extern mutex_t authnone_lock; 69 70 /* VARIABLES PROTECTED BY authnone_lock: ap */ 71 72 trace1(TR_authnone_create, 0); 73 mutex_lock(&authnone_lock); 74 ap = authnone_private; 75 if (ap == NULL) { 76 /* LINTED pointer alignment */ 77 ap = (struct authnone_private *)calloc(1, sizeof (*ap)); 78 if (ap == NULL) { 79 mutex_unlock(&authnone_lock); 80 trace1(TR_authnone_create, 1); 81 return ((AUTH *)NULL); 82 } 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 = authnone_ops(); 88 xdrs = &xdr_stream; 89 xdrmem_create(xdrs, ap->marshalled_client, 90 (uint_t)MAX_MARSHEL_SIZE, XDR_ENCODE); 91 (void) xdr_opaque_auth(xdrs, &ap->no_client.ah_cred); 92 (void) xdr_opaque_auth(xdrs, &ap->no_client.ah_verf); 93 ap->mcnt = XDR_GETPOS(xdrs); 94 XDR_DESTROY(xdrs); 95 } 96 mutex_unlock(&authnone_lock); 97 trace1(TR_authnone_create, 1); 98 return (&ap->no_client); 99 } 100 101 /*ARGSUSED*/ 102 static bool_t 103 authnone_marshal(AUTH *client, XDR *xdrs) 104 { 105 struct authnone_private *ap; 106 bool_t dummy; 107 extern mutex_t authnone_lock; 108 109 trace1(TR_authnone_marshal, 0); 110 mutex_lock(&authnone_lock); 111 ap = authnone_private; 112 if (ap == NULL) { 113 mutex_unlock(&authnone_lock); 114 trace1(TR_authnone_marshal, 1); 115 return (FALSE); 116 } 117 dummy = (*xdrs->x_ops->x_putbytes)(xdrs, 118 ap->marshalled_client, ap->mcnt); 119 mutex_unlock(&authnone_lock); 120 trace1(TR_authnone_marshal, 1); 121 return (dummy); 122 } 123 124 /* All these unused parameters are required to keep ANSI-C from grumbling */ 125 /*ARGSUSED*/ 126 static void 127 authnone_verf(AUTH *client) 128 { 129 trace1(TR_authnone_verf, 0); 130 trace1(TR_authnone_verf, 1); 131 } 132 133 /*ARGSUSED*/ 134 static bool_t 135 authnone_validate(AUTH *client, struct opaque_auth *opaque) 136 { 137 trace1(TR_authnone_validate, 0); 138 trace1(TR_authnone_validate, 1); 139 return (TRUE); 140 } 141 142 /*ARGSUSED*/ 143 static bool_t 144 authnone_refresh(AUTH *client, void *dummy) 145 { 146 trace1(TR_authnone_refresh, 0); 147 trace1(TR_authnone_refresh, 1); 148 return (FALSE); 149 } 150 151 /*ARGSUSED*/ 152 static void 153 authnone_destroy(AUTH *client) 154 { 155 trace1(TR_authnone_destroy, 0); 156 trace1(TR_authnone_destroy, 1); 157 } 158 159 static struct auth_ops * 160 authnone_ops() 161 { 162 static struct auth_ops ops; 163 extern mutex_t ops_lock; 164 165 /* VARIABLES PROTECTED BY ops_lock: ops */ 166 167 trace1(TR_authnone_ops, 0); 168 mutex_lock(&ops_lock); 169 if (ops.ah_nextverf == NULL) { 170 ops.ah_nextverf = authnone_verf; 171 ops.ah_marshal = authnone_marshal; 172 ops.ah_validate = authnone_validate; 173 ops.ah_refresh = authnone_refresh; 174 ops.ah_destroy = authnone_destroy; 175 } 176 mutex_unlock(&ops_lock); 177 trace1(TR_authnone_ops, 1); 178 return (&ops); 179 } 180