1 /* $NetBSD: auth_none.c,v 1.13 2000/01/22 22:19:17 mycroft Exp $ */ 2 3 /* 4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 5 * unrestricted use provided that this legend is included on all tape 6 * media and as a part of the software program in whole or part. Users 7 * may copy or modify Sun RPC without charge, but are not authorized 8 * to license or distribute it to anyone else except as part of a product or 9 * program developed by the user. 10 * 11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 14 * 15 * Sun RPC is provided with no support and without any obligation on the 16 * part of Sun Microsystems, Inc. to assist in its use, correction, 17 * modification or enhancement. 18 * 19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 21 * OR ANY PART THEREOF. 22 * 23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 24 * or profits or other special, indirect and consequential damages, even if 25 * Sun has been advised of the possibility of such damages. 26 * 27 * Sun Microsystems, Inc. 28 * 2550 Garcia Avenue 29 * Mountain View, California 94043 30 */ 31 32 #if defined(LIBC_SCCS) && !defined(lint) 33 static char *sccsid = "@(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro"; 34 static char *sccsid = "@(#)auth_none.c 2.1 88/07/29 4.0 RPCSRC"; 35 #endif 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD$"); 38 39 /* 40 * auth_none.c 41 * Creates a client authentication handle for passing "null" 42 * credentials and verifiers to remote systems. 43 * 44 * Copyright (C) 1984, Sun Microsystems, Inc. 45 */ 46 47 #include "namespace.h" 48 #include "reentrant.h" 49 #include <assert.h> 50 #include <stdlib.h> 51 #include <rpc/types.h> 52 #include <rpc/xdr.h> 53 #include <rpc/auth.h> 54 #include "un-namespace.h" 55 56 #define MAX_MARSHAL_SIZE 20 57 58 /* 59 * Authenticator operations routines 60 */ 61 62 static bool_t authnone_marshal (AUTH *, XDR *); 63 static void authnone_verf (AUTH *); 64 static bool_t authnone_validate (AUTH *, struct opaque_auth *); 65 static bool_t authnone_refresh (AUTH *, void *); 66 static void authnone_destroy (AUTH *); 67 68 extern bool_t xdr_opaque_auth(); 69 70 static struct auth_ops *authnone_ops(); 71 72 static struct authnone_private { 73 AUTH no_client; 74 char marshalled_client[MAX_MARSHAL_SIZE]; 75 u_int mcnt; 76 } *authnone_private; 77 78 AUTH * 79 authnone_create() 80 { 81 struct authnone_private *ap = authnone_private; 82 XDR xdr_stream; 83 XDR *xdrs; 84 extern mutex_t authnone_lock; 85 86 mutex_lock(&authnone_lock); 87 if (ap == 0) { 88 ap = (struct authnone_private *)calloc(1, sizeof (*ap)); 89 if (ap == 0) { 90 mutex_unlock(&authnone_lock); 91 return (0); 92 } 93 authnone_private = ap; 94 } 95 if (!ap->mcnt) { 96 ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth; 97 ap->no_client.ah_ops = authnone_ops(); 98 xdrs = &xdr_stream; 99 xdrmem_create(xdrs, ap->marshalled_client, 100 (u_int)MAX_MARSHAL_SIZE, XDR_ENCODE); 101 (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_cred); 102 (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_verf); 103 ap->mcnt = XDR_GETPOS(xdrs); 104 XDR_DESTROY(xdrs); 105 } 106 mutex_unlock(&authnone_lock); 107 return (&ap->no_client); 108 } 109 110 /*ARGSUSED*/ 111 static bool_t 112 authnone_marshal(AUTH *client, XDR *xdrs) 113 { 114 struct authnone_private *ap; 115 bool_t dummy; 116 extern mutex_t authnone_lock; 117 118 assert(xdrs != NULL); 119 120 ap = authnone_private; 121 if (ap == NULL) { 122 mutex_unlock(&authnone_lock); 123 return (FALSE); 124 } 125 dummy = (*xdrs->x_ops->x_putbytes)(xdrs, 126 ap->marshalled_client, ap->mcnt); 127 mutex_unlock(&authnone_lock); 128 return (dummy); 129 } 130 131 /* All these unused parameters are required to keep ANSI-C from grumbling */ 132 /*ARGSUSED*/ 133 static void 134 authnone_verf(AUTH *client) 135 { 136 } 137 138 /*ARGSUSED*/ 139 static bool_t 140 authnone_validate(AUTH *client, struct opaque_auth *opaque) 141 { 142 143 return (TRUE); 144 } 145 146 /*ARGSUSED*/ 147 static bool_t 148 authnone_refresh(AUTH *client, void *dummy) 149 { 150 151 return (FALSE); 152 } 153 154 /*ARGSUSED*/ 155 static void 156 authnone_destroy(AUTH *client) 157 { 158 } 159 160 static struct auth_ops * 161 authnone_ops() 162 { 163 static struct auth_ops ops; 164 extern mutex_t ops_lock; 165 166 /* VARIABLES PROTECTED BY ops_lock: ops */ 167 168 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 return (&ops); 178 } 179