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 #include <sys/cdefs.h> 34 /* 35 * auth_none.c 36 * Creates a client authentication handle for passing "null" 37 * credentials and verifiers to remote systems. 38 * 39 * Copyright (C) 1984, Sun Microsystems, Inc. 40 */ 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/lock.h> 46 #include <sys/malloc.h> 47 #include <sys/mutex.h> 48 49 #include <rpc/types.h> 50 #include <rpc/xdr.h> 51 #include <rpc/auth.h> 52 #include <rpc/clnt.h> 53 54 #define MAX_MARSHAL_SIZE 20 55 56 /* 57 * Authenticator operations routines 58 */ 59 60 static bool_t authnone_marshal (AUTH *, uint32_t, XDR *, struct mbuf *); 61 static void authnone_verf (AUTH *); 62 static bool_t authnone_validate (AUTH *, uint32_t, struct opaque_auth *, 63 struct mbuf **); 64 static bool_t authnone_refresh (AUTH *, void *); 65 static void authnone_destroy (AUTH *); 66 67 static const struct auth_ops authnone_ops = { 68 .ah_nextverf = authnone_verf, 69 .ah_marshal = authnone_marshal, 70 .ah_validate = authnone_validate, 71 .ah_refresh = authnone_refresh, 72 .ah_destroy = authnone_destroy, 73 }; 74 75 struct authnone_private { 76 AUTH no_client; 77 char mclient[MAX_MARSHAL_SIZE]; 78 u_int mcnt; 79 }; 80 81 static struct authnone_private authnone_private; 82 83 static void 84 authnone_init(void *dummy) 85 { 86 struct authnone_private *ap = &authnone_private; 87 XDR xdrs; 88 89 ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth; 90 ap->no_client.ah_ops = &authnone_ops; 91 xdrmem_create(&xdrs, ap->mclient, MAX_MARSHAL_SIZE, XDR_ENCODE); 92 xdr_opaque_auth(&xdrs, &ap->no_client.ah_cred); 93 xdr_opaque_auth(&xdrs, &ap->no_client.ah_verf); 94 ap->mcnt = XDR_GETPOS(&xdrs); 95 XDR_DESTROY(&xdrs); 96 } 97 SYSINIT(authnone_init, SI_SUB_KMEM, SI_ORDER_ANY, authnone_init, NULL); 98 99 AUTH * 100 authnone_create(void) 101 { 102 struct authnone_private *ap = &authnone_private; 103 104 return (&ap->no_client); 105 } 106 107 /*ARGSUSED*/ 108 static bool_t 109 authnone_marshal(AUTH *client, uint32_t xid, XDR *xdrs, struct mbuf *args) 110 { 111 struct authnone_private *ap = &authnone_private; 112 113 KASSERT(xdrs != NULL, ("authnone_marshal: xdrs is null")); 114 115 if (!XDR_PUTBYTES(xdrs, ap->mclient, ap->mcnt)) 116 return (FALSE); 117 118 xdrmbuf_append(xdrs, args); 119 120 return (TRUE); 121 } 122 123 /* All these unused parameters are required to keep ANSI-C from grumbling */ 124 /*ARGSUSED*/ 125 static void 126 authnone_verf(AUTH *client) 127 { 128 } 129 130 /*ARGSUSED*/ 131 static bool_t 132 authnone_validate(AUTH *client, uint32_t xid, struct opaque_auth *opaque, 133 struct mbuf **mrepp) 134 { 135 136 return (TRUE); 137 } 138 139 /*ARGSUSED*/ 140 static bool_t 141 authnone_refresh(AUTH *client, void *dummy) 142 { 143 144 return (FALSE); 145 } 146 147 /*ARGSUSED*/ 148 static void 149 authnone_destroy(AUTH *client) 150 { 151 } 152