1 /* 2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 3 * unrestricted use provided that this legend is included on all tape 4 * media and as a part of the software program in whole or part. Users 5 * may copy or modify Sun RPC without charge, but are not authorized 6 * to license or distribute it to anyone else except as part of a product or 7 * program developed by the user. 8 * 9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 12 * 13 * Sun RPC is provided with no support and without any obligation on the 14 * part of Sun Microsystems, Inc. to assist in its use, correction, 15 * modification or enhancement. 16 * 17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 19 * OR ANY PART THEREOF. 20 * 21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 22 * or profits or other special, indirect and consequential damages, even if 23 * Sun has been advised of the possibility of such damages. 24 * 25 * Sun Microsystems, Inc. 26 * 2550 Garcia Avenue 27 * Mountain View, California 94043 28 * 29 * @(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro 30 * @(#)auth_none.c 2.1 88/07/29 4.0 RPCSRC 31 * $NetBSD: auth_none.c,v 1.13 2000/01/22 22:19:17 mycroft Exp $ 32 * $FreeBSD: src/lib/libc/rpc/auth_none.c,v 1.14 2006/02/27 22:10:58 deischen Exp $ 33 * $DragonFly: src/lib/libc/rpc/auth_none.c,v 1.4 2005/11/13 12:27:04 swildner Exp $ 34 */ 35 36 /* 37 * auth_none.c 38 * Creates a client authentication handle for passing "null" 39 * credentials and verifiers to remote systems. 40 * 41 * Copyright (C) 1984, Sun Microsystems, Inc. 42 */ 43 44 #include "namespace.h" 45 #include "reentrant.h" 46 #include <assert.h> 47 #include <stdlib.h> 48 #include <rpc/types.h> 49 #include <rpc/xdr.h> 50 #include <rpc/auth.h> 51 #include "un-namespace.h" 52 #include "mt_misc.h" 53 54 #define MAX_MARSHAL_SIZE 20 55 56 /* 57 * Authenticator operations routines 58 */ 59 60 static bool_t authnone_marshal(AUTH *, XDR *); 61 static void authnone_verf(AUTH *); 62 static bool_t authnone_validate(AUTH *, struct opaque_auth *); 63 static bool_t authnone_refresh(AUTH *, void *); 64 static void authnone_destroy(AUTH *); 65 66 static struct auth_ops *authnone_ops(void); 67 68 static struct authnone_private { 69 AUTH no_client; 70 char marshalled_client[MAX_MARSHAL_SIZE]; 71 u_int mcnt; 72 } *authnone_private; 73 74 AUTH * 75 authnone_create(void) 76 { 77 struct authnone_private *ap = authnone_private; 78 XDR xdr_stream; 79 XDR *xdrs; 80 81 mutex_lock(&authnone_lock); 82 if (ap == 0) { 83 ap = (struct authnone_private *)calloc(1, sizeof (*ap)); 84 if (ap == 0) { 85 mutex_unlock(&authnone_lock); 86 return (0); 87 } 88 authnone_private = ap; 89 } 90 if (!ap->mcnt) { 91 ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth; 92 ap->no_client.ah_ops = authnone_ops(); 93 xdrs = &xdr_stream; 94 xdrmem_create(xdrs, ap->marshalled_client, 95 (u_int)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 mutex_unlock(&authnone_lock); 102 return (&ap->no_client); 103 } 104 105 /*ARGSUSED*/ 106 static bool_t 107 authnone_marshal(AUTH *client, XDR *xdrs) 108 { 109 struct authnone_private *ap; 110 bool_t dummy; 111 112 assert(xdrs != NULL); 113 114 ap = authnone_private; 115 if (ap == NULL) { 116 mutex_unlock(&authnone_lock); 117 return (FALSE); 118 } 119 dummy = (*xdrs->x_ops->x_putbytes)(xdrs, 120 ap->marshalled_client, ap->mcnt); 121 mutex_unlock(&authnone_lock); 122 return (dummy); 123 } 124 125 /* All these unused parameters are required to keep ANSI-C from grumbling */ 126 /*ARGSUSED*/ 127 static void 128 authnone_verf(AUTH *client) 129 { 130 } 131 132 /*ARGSUSED*/ 133 static bool_t 134 authnone_validate(AUTH *client, struct opaque_auth *opaque) 135 { 136 137 return (TRUE); 138 } 139 140 /*ARGSUSED*/ 141 static bool_t 142 authnone_refresh(AUTH *client, void *dummy) 143 { 144 145 return (FALSE); 146 } 147 148 /*ARGSUSED*/ 149 static void 150 authnone_destroy(AUTH *client) 151 { 152 } 153 154 static struct auth_ops * 155 authnone_ops(void) 156 { 157 static struct auth_ops ops; 158 159 /* VARIABLES PROTECTED BY ops_lock: ops */ 160 161 mutex_lock(&ops_lock); 162 if (ops.ah_nextverf == NULL) { 163 ops.ah_nextverf = authnone_verf; 164 ops.ah_marshal = authnone_marshal; 165 ops.ah_validate = authnone_validate; 166 ops.ah_refresh = authnone_refresh; 167 ops.ah_destroy = authnone_destroy; 168 } 169 mutex_unlock(&ops_lock); 170 return (&ops); 171 } 172