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 /* 39 * auth_none.c 40 * Creates a client authentication handle for passing "null" 41 * credentials and verifiers to remote systems. 42 * 43 * Copyright (C) 1984, Sun Microsystems, Inc. 44 */ 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/kernel.h> 49 #include <sys/lock.h> 50 #include <sys/malloc.h> 51 #include <sys/mutex.h> 52 53 #include <rpc/types.h> 54 #include <rpc/xdr.h> 55 #include <rpc/auth.h> 56 #include <rpc/clnt.h> 57 58 #define MAX_MARSHAL_SIZE 20 59 60 /* 61 * Authenticator operations routines 62 */ 63 64 static bool_t authnone_marshal (AUTH *, uint32_t, XDR *, struct mbuf *); 65 static void authnone_verf (AUTH *); 66 static bool_t authnone_validate (AUTH *, uint32_t, struct opaque_auth *, 67 struct mbuf **); 68 static bool_t authnone_refresh (AUTH *, void *); 69 static void authnone_destroy (AUTH *); 70 71 static const struct auth_ops authnone_ops = { 72 .ah_nextverf = authnone_verf, 73 .ah_marshal = authnone_marshal, 74 .ah_validate = authnone_validate, 75 .ah_refresh = authnone_refresh, 76 .ah_destroy = authnone_destroy, 77 }; 78 79 struct authnone_private { 80 AUTH no_client; 81 char mclient[MAX_MARSHAL_SIZE]; 82 u_int mcnt; 83 }; 84 85 static struct authnone_private authnone_private; 86 87 static void 88 authnone_init(void *dummy) 89 { 90 struct authnone_private *ap = &authnone_private; 91 XDR xdrs; 92 93 ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth; 94 ap->no_client.ah_ops = &authnone_ops; 95 xdrmem_create(&xdrs, ap->mclient, MAX_MARSHAL_SIZE, XDR_ENCODE); 96 xdr_opaque_auth(&xdrs, &ap->no_client.ah_cred); 97 xdr_opaque_auth(&xdrs, &ap->no_client.ah_verf); 98 ap->mcnt = XDR_GETPOS(&xdrs); 99 XDR_DESTROY(&xdrs); 100 } 101 SYSINIT(authnone_init, SI_SUB_KMEM, SI_ORDER_ANY, authnone_init, NULL); 102 103 AUTH * 104 authnone_create(void) 105 { 106 struct authnone_private *ap = &authnone_private; 107 108 return (&ap->no_client); 109 } 110 111 /*ARGSUSED*/ 112 static bool_t 113 authnone_marshal(AUTH *client, uint32_t xid, XDR *xdrs, struct mbuf *args) 114 { 115 struct authnone_private *ap = &authnone_private; 116 117 KASSERT(xdrs != NULL, ("authnone_marshal: xdrs is null")); 118 119 if (!XDR_PUTBYTES(xdrs, ap->mclient, ap->mcnt)) 120 return (FALSE); 121 122 xdrmbuf_append(xdrs, args); 123 124 return (TRUE); 125 } 126 127 /* All these unused parameters are required to keep ANSI-C from grumbling */ 128 /*ARGSUSED*/ 129 static void 130 authnone_verf(AUTH *client) 131 { 132 } 133 134 /*ARGSUSED*/ 135 static bool_t 136 authnone_validate(AUTH *client, uint32_t xid, struct opaque_auth *opaque, 137 struct mbuf **mrepp) 138 { 139 140 return (TRUE); 141 } 142 143 /*ARGSUSED*/ 144 static bool_t 145 authnone_refresh(AUTH *client, void *dummy) 146 { 147 148 return (FALSE); 149 } 150 151 /*ARGSUSED*/ 152 static void 153 authnone_destroy(AUTH *client) 154 { 155 } 156