1/* $NetBSD: svc_raw.c,v 1.14 2000/07/06 03:10:35 christos 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 * Copyright (c) 1986-1991 by Sun Microsystems Inc. 34 */ 35 36/* #ident "@(#)svc_raw.c 1.16 94/04/24 SMI" */ 37 38#if defined(LIBC_SCCS) && !defined(lint) 39static char sccsid[] = "@(#)svc_raw.c 1.25 89/01/31 Copyr 1984 Sun Micro"; 40#endif 41#include <sys/cdefs.h> 42__FBSDID("$FreeBSD$"); 43 44/* 45 * svc_raw.c, This a toy for simple testing and timing. 46 * Interface to create an rpc client and server in the same UNIX process. 47 * This lets us similate rpc and get rpc (round trip) overhead, without 48 * any interference from the kernel. 49 * 50 */ 51 52#include "namespace.h" 53#include "reentrant.h" 54#include <rpc/rpc.h> 55#include <sys/types.h> 56#include <rpc/raw.h> 57#include <stdlib.h> 58#include "un-namespace.h" 59#include "mt_misc.h" 60 61#ifndef UDPMSGSIZE 62#define UDPMSGSIZE 8800 63#endif 64 65/* 66 * This is the "network" that we will be moving data over 67 */ 68static struct svc_raw_private { 69 char *raw_buf; /* should be shared with the cl handle */ 70 SVCXPRT *server; 71 XDR xdr_stream; 72 char verf_body[MAX_AUTH_BYTES]; 73} *svc_raw_private; 74 75static enum xprt_stat svc_raw_stat(SVCXPRT *); 76static bool_t svc_raw_recv(SVCXPRT *, struct rpc_msg *); 77static bool_t svc_raw_reply(SVCXPRT *, struct rpc_msg *); 78static bool_t svc_raw_getargs(SVCXPRT *, xdrproc_t, void *); 79static bool_t svc_raw_freeargs(SVCXPRT *, xdrproc_t, void *); 80static void svc_raw_destroy(SVCXPRT *); 81static void svc_raw_ops(SVCXPRT *); 82static bool_t svc_raw_control(SVCXPRT *, const u_int, void *); 83 84char *__rpc_rawcombuf = NULL; 85 86SVCXPRT * 87svc_raw_create(void) 88{ 89 struct svc_raw_private *srp; 90/* VARIABLES PROTECTED BY svcraw_lock: svc_raw_private, srp */ 91 92 mutex_lock(&svcraw_lock); 93 srp = svc_raw_private; 94 if (srp == NULL) { 95 srp = (struct svc_raw_private *)calloc(1, sizeof (*srp)); 96 if (srp == NULL) { 97 mutex_unlock(&svcraw_lock); 98 return (NULL); 99 } 100 if (__rpc_rawcombuf == NULL) { 101 __rpc_rawcombuf = calloc(UDPMSGSIZE, sizeof (char)); 102 if (__rpc_rawcombuf == NULL) { 103 free(srp); 104 mutex_unlock(&svcraw_lock); 105 return (NULL); 106 } 107 } 108 srp->raw_buf = __rpc_rawcombuf; /* Share it with the client */ 109 srp->server = svc_xprt_alloc(); 110 if (srp->server == NULL) { 111 free(__rpc_rawcombuf); 112 free(srp); 113 mutex_unlock(&svcraw_lock); 114 return (NULL); 115 } 116 svc_raw_private = srp; 117 } 118 srp->server->xp_fd = FD_SETSIZE; 119 srp->server->xp_port = 0; 120 svc_raw_ops(srp->server); 121 srp->server->xp_verf.oa_base = srp->verf_body; 122 xdrmem_create(&srp->xdr_stream, srp->raw_buf, UDPMSGSIZE, XDR_DECODE); 123 xprt_register(srp->server); 124 mutex_unlock(&svcraw_lock); 125 return (srp->server); 126} 127 128/*ARGSUSED*/ 129static enum xprt_stat 130svc_raw_stat(SVCXPRT *xprt) 131{ 132 return (XPRT_IDLE); 133} 134 135/*ARGSUSED*/ 136static bool_t 137svc_raw_recv(SVCXPRT *xprt, struct rpc_msg *msg) 138{ 139 struct svc_raw_private *srp; 140 XDR *xdrs; 141 142 mutex_lock(&svcraw_lock); 143 srp = svc_raw_private; 144 if (srp == NULL) { 145 mutex_unlock(&svcraw_lock); 146 return (FALSE); 147 } 148 mutex_unlock(&svcraw_lock); 149 150 xdrs = &srp->xdr_stream; 151 xdrs->x_op = XDR_DECODE; 152 (void) XDR_SETPOS(xdrs, 0); 153 if (! xdr_callmsg(xdrs, msg)) { 154 return (FALSE); 155 } 156 return (TRUE); 157} 158 159/*ARGSUSED*/ 160static bool_t 161svc_raw_reply(SVCXPRT *xprt, struct rpc_msg *msg) 162{ 163 struct svc_raw_private *srp; 164 XDR *xdrs; 165 bool_t stat; 166 xdrproc_t xdr_proc; 167 caddr_t xdr_where; 168 169 mutex_lock(&svcraw_lock); 170 srp = svc_raw_private; 171 if (srp == NULL) { 172 mutex_unlock(&svcraw_lock); 173 return (FALSE); 174 } 175 mutex_unlock(&svcraw_lock); 176 177 xdrs = &srp->xdr_stream; 178 xdrs->x_op = XDR_ENCODE; 179 (void) XDR_SETPOS(xdrs, 0); 180 if (msg->rm_reply.rp_stat == MSG_ACCEPTED && 181 msg->rm_reply.rp_acpt.ar_stat == SUCCESS) { 182 xdr_proc = msg->acpted_rply.ar_results.proc; 183 xdr_where = msg->acpted_rply.ar_results.where; 184 msg->acpted_rply.ar_results.proc = (xdrproc_t) xdr_void; 185 msg->acpted_rply.ar_results.where = NULL; 186 187 stat = xdr_replymsg(xdrs, msg) && 188 SVCAUTH_WRAP(&SVC_AUTH(xprt), xdrs, xdr_proc, xdr_where); 189 } else { 190 stat = xdr_replymsg(xdrs, msg); 191 } 192 if (!stat) { 193 return (FALSE); 194 } 195 (void) XDR_GETPOS(xdrs); /* called just for overhead */ 196 return (TRUE); 197} 198 199/*ARGSUSED*/ 200static bool_t 201svc_raw_getargs(SVCXPRT *xprt, xdrproc_t xdr_args, void *args_ptr) 202{ 203 struct svc_raw_private *srp; 204 205 mutex_lock(&svcraw_lock); 206 srp = svc_raw_private; 207 if (srp == NULL) { 208 mutex_unlock(&svcraw_lock); 209 return (FALSE); 210 } 211 mutex_unlock(&svcraw_lock); 212 213 return (SVCAUTH_UNWRAP(&SVC_AUTH(xprt), &srp->xdr_stream, 214 xdr_args, args_ptr)); 215} 216 217/*ARGSUSED*/ 218static bool_t 219svc_raw_freeargs(SVCXPRT *xprt, xdrproc_t xdr_args, void *args_ptr) 220{ 221 struct svc_raw_private *srp; 222 XDR *xdrs; 223 224 mutex_lock(&svcraw_lock); 225 srp = svc_raw_private; 226 if (srp == NULL) { 227 mutex_unlock(&svcraw_lock); 228 return (FALSE); 229 } 230 mutex_unlock(&svcraw_lock); 231 232 xdrs = &srp->xdr_stream; 233 xdrs->x_op = XDR_FREE; 234 return (*xdr_args)(xdrs, args_ptr); 235} 236 237/*ARGSUSED*/ 238static void 239svc_raw_destroy(SVCXPRT *xprt) 240{ 241} 242 243/*ARGSUSED*/ 244static bool_t 245svc_raw_control(SVCXPRT *xprt, const u_int rq, void *in) 246{ 247 return (FALSE); 248} 249 250static void 251svc_raw_ops(SVCXPRT *xprt) 252{ 253 static struct xp_ops ops; 254 static struct xp_ops2 ops2; 255 256/* VARIABLES PROTECTED BY ops_lock: ops */ 257 258 mutex_lock(&ops_lock); 259 if (ops.xp_recv == NULL) { 260 ops.xp_recv = svc_raw_recv; 261 ops.xp_stat = svc_raw_stat; 262 ops.xp_getargs = svc_raw_getargs; 263 ops.xp_reply = svc_raw_reply; 264 ops.xp_freeargs = svc_raw_freeargs; 265 ops.xp_destroy = svc_raw_destroy; 266 ops2.xp_control = svc_raw_control; 267 } 268 xprt->xp_ops = &ops; 269 xprt->xp_ops2 = &ops2; 270 mutex_unlock(&ops_lock); 271} 272