1 /* $NetBSD: auth_none.c,v 1.13 2000/01/22 22:19:17 mycroft Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 * Copyright (c) 2009, Sun Microsystems, Inc. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions are met: 11 * - Redistributions of source code must retain the above copyright notice, 12 * this list of conditions and the following disclaimer. 13 * - Redistributions in binary form must reproduce the above copyright notice, 14 * this list of conditions and the following disclaimer in the documentation 15 * and/or other materials provided with the distribution. 16 * - Neither the name of Sun Microsystems, 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 "AS IS" 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #if defined(LIBC_SCCS) && !defined(lint) 34 static char *sccsid2 = "@(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro"; 35 static char *sccsid = "@(#)auth_none.c 2.1 88/07/29 4.0 RPCSRC"; 36 #endif 37 #include <sys/cdefs.h> 38 __FBSDID("$FreeBSD$"); 39 40 /* 41 * auth_none.c 42 * Creates a client authentication handle for passing "null" 43 * credentials and verifiers to remote systems. 44 * 45 * Copyright (C) 1984, Sun Microsystems, Inc. 46 */ 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/kernel.h> 51 #include <sys/lock.h> 52 #include <sys/malloc.h> 53 #include <sys/mutex.h> 54 55 #include <rpc/types.h> 56 #include <rpc/xdr.h> 57 #include <rpc/auth.h> 58 #include <rpc/clnt.h> 59 60 #define MAX_MARSHAL_SIZE 20 61 62 /* 63 * Authenticator operations routines 64 */ 65 66 static bool_t authnone_marshal (AUTH *, uint32_t, XDR *, struct mbuf *); 67 static void authnone_verf (AUTH *); 68 static bool_t authnone_validate (AUTH *, uint32_t, struct opaque_auth *, 69 struct mbuf **); 70 static bool_t authnone_refresh (AUTH *, void *); 71 static void authnone_destroy (AUTH *); 72 73 static const struct auth_ops authnone_ops = { 74 .ah_nextverf = authnone_verf, 75 .ah_marshal = authnone_marshal, 76 .ah_validate = authnone_validate, 77 .ah_refresh = authnone_refresh, 78 .ah_destroy = authnone_destroy, 79 }; 80 81 struct authnone_private { 82 AUTH no_client; 83 char mclient[MAX_MARSHAL_SIZE]; 84 u_int mcnt; 85 }; 86 87 static struct authnone_private authnone_private; 88 89 static void 90 authnone_init(void *dummy) 91 { 92 struct authnone_private *ap = &authnone_private; 93 XDR xdrs; 94 95 ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth; 96 ap->no_client.ah_ops = &authnone_ops; 97 xdrmem_create(&xdrs, ap->mclient, MAX_MARSHAL_SIZE, XDR_ENCODE); 98 xdr_opaque_auth(&xdrs, &ap->no_client.ah_cred); 99 xdr_opaque_auth(&xdrs, &ap->no_client.ah_verf); 100 ap->mcnt = XDR_GETPOS(&xdrs); 101 XDR_DESTROY(&xdrs); 102 } 103 SYSINIT(authnone_init, SI_SUB_KMEM, SI_ORDER_ANY, authnone_init, NULL); 104 105 AUTH * 106 authnone_create(void) 107 { 108 struct authnone_private *ap = &authnone_private; 109 110 return (&ap->no_client); 111 } 112 113 /*ARGSUSED*/ 114 static bool_t 115 authnone_marshal(AUTH *client, uint32_t xid, XDR *xdrs, struct mbuf *args) 116 { 117 struct authnone_private *ap = &authnone_private; 118 119 KASSERT(xdrs != NULL, ("authnone_marshal: xdrs is null")); 120 121 if (!XDR_PUTBYTES(xdrs, ap->mclient, ap->mcnt)) 122 return (FALSE); 123 124 xdrmbuf_append(xdrs, args); 125 126 return (TRUE); 127 } 128 129 /* All these unused parameters are required to keep ANSI-C from grumbling */ 130 /*ARGSUSED*/ 131 static void 132 authnone_verf(AUTH *client) 133 { 134 } 135 136 /*ARGSUSED*/ 137 static bool_t 138 authnone_validate(AUTH *client, uint32_t xid, struct opaque_auth *opaque, 139 struct mbuf **mrepp) 140 { 141 142 return (TRUE); 143 } 144 145 /*ARGSUSED*/ 146 static bool_t 147 authnone_refresh(AUTH *client, void *dummy) 148 { 149 150 return (FALSE); 151 } 152 153 /*ARGSUSED*/ 154 static void 155 authnone_destroy(AUTH *client) 156 { 157 } 158