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 *sccsid2 = "@(#)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 #include "mt_misc.h" 56 57 #define MAX_MARSHAL_SIZE 20 58 59 /* 60 * Authenticator operations routines 61 */ 62 63 static bool_t authnone_marshal (AUTH *, XDR *); 64 static void authnone_verf (AUTH *); 65 static bool_t authnone_validate (AUTH *, struct opaque_auth *); 66 static bool_t authnone_refresh (AUTH *, void *); 67 static void authnone_destroy (AUTH *); 68 69 extern bool_t xdr_opaque_auth(); 70 71 static struct auth_ops *authnone_ops(); 72 73 static struct authnone_private { 74 AUTH no_client; 75 char marshalled_client[MAX_MARSHAL_SIZE]; 76 u_int mcnt; 77 } *authnone_private; 78 79 AUTH * 80 authnone_create() 81 { 82 struct authnone_private *ap = authnone_private; 83 XDR xdr_stream; 84 XDR *xdrs; 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; 116 117 assert(xdrs != NULL); 118 119 ap = authnone_private; 120 if (ap == NULL) { 121 mutex_unlock(&authnone_lock); 122 return (FALSE); 123 } 124 dummy = (*xdrs->x_ops->x_putbytes)(xdrs, 125 ap->marshalled_client, ap->mcnt); 126 mutex_unlock(&authnone_lock); 127 return (dummy); 128 } 129 130 /* All these unused parameters are required to keep ANSI-C from grumbling */ 131 /*ARGSUSED*/ 132 static void 133 authnone_verf(AUTH *client) 134 { 135 } 136 137 /*ARGSUSED*/ 138 static bool_t 139 authnone_validate(AUTH *client, struct opaque_auth *opaque) 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 } 158 159 static struct auth_ops * 160 authnone_ops() 161 { 162 static struct auth_ops ops; 163 164 /* VARIABLES PROTECTED BY ops_lock: ops */ 165 166 mutex_lock(&ops_lock); 167 if (ops.ah_nextverf == NULL) { 168 ops.ah_nextverf = authnone_verf; 169 ops.ah_marshal = authnone_marshal; 170 ops.ah_validate = authnone_validate; 171 ops.ah_refresh = authnone_refresh; 172 ops.ah_destroy = authnone_destroy; 173 } 174 mutex_unlock(&ops_lock); 175 return (&ops); 176 } 177