1/* $NetBSD: svc_raw.c,v 1.14 2000/07/06 03:10:35 christos Exp $ */ 2 3/*- 4 * Copyright (c) 2009, Sun Microsystems, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions are met: 9 * - Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * - Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation 13 * and/or other materials provided with the distribution. 14 * - Neither the name of Sun Microsystems, Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30/* 31 * Copyright (c) 1986-1991 by Sun Microsystems Inc. 32 */ 33 34/* #ident "@(#)svc_raw.c 1.16 94/04/24 SMI" */ 35 36#if defined(LIBC_SCCS) && !defined(lint) 37static char sccsid[] = "@(#)svc_raw.c 1.25 89/01/31 Copyr 1984 Sun Micro"; 38#endif 39#include <sys/cdefs.h> 40__FBSDID("$FreeBSD: stable/10/lib/libc/rpc/svc_raw.c 309487 2016-12-03 17:27:28Z ngie $"); 41 42/* 43 * svc_raw.c, This a toy for simple testing and timing. 44 * Interface to create an rpc client and server in the same UNIX process. 45 * This lets us similate rpc and get rpc (round trip) overhead, without 46 * any interference from the kernel. 47 * 48 */ 49 50#include "namespace.h" 51#include "reentrant.h" 52#include <rpc/rpc.h> 53#include <sys/types.h> 54#include <rpc/raw.h> 55#include <stdlib.h> 56#include "un-namespace.h" 57#include "mt_misc.h" 58 59#ifndef UDPMSGSIZE 60#define UDPMSGSIZE 8800 61#endif 62 63/* 64 * This is the "network" that we will be moving data over 65 */ 66static struct svc_raw_private { 67 char *raw_buf; /* should be shared with the cl handle */ 68 SVCXPRT *server; 69 XDR xdr_stream; 70 char verf_body[MAX_AUTH_BYTES]; 71} *svc_raw_private; 72 73static enum xprt_stat svc_raw_stat(SVCXPRT *); 74static bool_t svc_raw_recv(SVCXPRT *, struct rpc_msg *); 75static bool_t svc_raw_reply(SVCXPRT *, struct rpc_msg *); 76static bool_t svc_raw_getargs(SVCXPRT *, xdrproc_t, void *); 77static bool_t svc_raw_freeargs(SVCXPRT *, xdrproc_t, void *); 78static void svc_raw_destroy(SVCXPRT *); 79static void svc_raw_ops(SVCXPRT *); 80static bool_t svc_raw_control(SVCXPRT *, const u_int, void *); 81 82char *__rpc_rawcombuf = NULL; 83 84SVCXPRT * 85svc_raw_create(void) 86{ 87 struct svc_raw_private *srp; 88/* VARIABLES PROTECTED BY svcraw_lock: svc_raw_private, srp */ 89 90 mutex_lock(&svcraw_lock); 91 srp = svc_raw_private; 92 if (srp == NULL) { 93 srp = (struct svc_raw_private *)calloc(1, sizeof (*srp)); 94 if (srp == NULL) { 95 mutex_unlock(&svcraw_lock); 96 return (NULL); 97 } 98 if (__rpc_rawcombuf == NULL) { 99 __rpc_rawcombuf = calloc(UDPMSGSIZE, sizeof (char)); 100 if (__rpc_rawcombuf == NULL) { 101 free(srp); 102 mutex_unlock(&svcraw_lock); 103 return (NULL); 104 } 105 } 106 srp->raw_buf = __rpc_rawcombuf; /* Share it with the client */ 107 srp->server = svc_xprt_alloc(); 108 if (srp->server == NULL) { 109 free(__rpc_rawcombuf); 110 free(srp); 111 mutex_unlock(&svcraw_lock); 112 return (NULL); 113 } 114 svc_raw_private = srp; 115 } 116 srp->server->xp_fd = FD_SETSIZE; 117 srp->server->xp_port = 0; 118 svc_raw_ops(srp->server); 119 srp->server->xp_verf.oa_base = srp->verf_body; 120 xdrmem_create(&srp->xdr_stream, srp->raw_buf, UDPMSGSIZE, XDR_DECODE); 121 xprt_register(srp->server); 122 mutex_unlock(&svcraw_lock); 123 return (srp->server); 124} 125 126/*ARGSUSED*/ 127static enum xprt_stat 128svc_raw_stat(SVCXPRT *xprt) 129{ 130 return (XPRT_IDLE); 131} 132 133/*ARGSUSED*/ 134static bool_t 135svc_raw_recv(SVCXPRT *xprt, struct rpc_msg *msg) 136{ 137 struct svc_raw_private *srp; 138 XDR *xdrs; 139 140 mutex_lock(&svcraw_lock); 141 srp = svc_raw_private; 142 if (srp == NULL) { 143 mutex_unlock(&svcraw_lock); 144 return (FALSE); 145 } 146 mutex_unlock(&svcraw_lock); 147 148 xdrs = &srp->xdr_stream; 149 xdrs->x_op = XDR_DECODE; 150 (void) XDR_SETPOS(xdrs, 0); 151 if (! xdr_callmsg(xdrs, msg)) { 152 return (FALSE); 153 } 154 return (TRUE); 155} 156 157/*ARGSUSED*/ 158static bool_t 159svc_raw_reply(SVCXPRT *xprt, struct rpc_msg *msg) 160{ 161 struct svc_raw_private *srp; 162 XDR *xdrs; 163 bool_t stat; 164 xdrproc_t xdr_proc; 165 caddr_t xdr_where; 166 167 mutex_lock(&svcraw_lock); 168 srp = svc_raw_private; 169 if (srp == NULL) { 170 mutex_unlock(&svcraw_lock); 171 return (FALSE); 172 } 173 mutex_unlock(&svcraw_lock); 174 175 xdrs = &srp->xdr_stream; 176 xdrs->x_op = XDR_ENCODE; 177 (void) XDR_SETPOS(xdrs, 0); 178 if (msg->rm_reply.rp_stat == MSG_ACCEPTED && 179 msg->rm_reply.rp_acpt.ar_stat == SUCCESS) { 180 xdr_proc = msg->acpted_rply.ar_results.proc; 181 xdr_where = msg->acpted_rply.ar_results.where; 182 msg->acpted_rply.ar_results.proc = (xdrproc_t) xdr_void; 183 msg->acpted_rply.ar_results.where = NULL; 184 185 stat = xdr_replymsg(xdrs, msg) && 186 SVCAUTH_WRAP(&SVC_AUTH(xprt), xdrs, xdr_proc, xdr_where); 187 } else { 188 stat = xdr_replymsg(xdrs, msg); 189 } 190 if (!stat) { 191 return (FALSE); 192 } 193 (void) XDR_GETPOS(xdrs); /* called just for overhead */ 194 return (TRUE); 195} 196 197/*ARGSUSED*/ 198static bool_t 199svc_raw_getargs(SVCXPRT *xprt, xdrproc_t xdr_args, void *args_ptr) 200{ 201 struct svc_raw_private *srp; 202 203 mutex_lock(&svcraw_lock); 204 srp = svc_raw_private; 205 if (srp == NULL) { 206 mutex_unlock(&svcraw_lock); 207 return (FALSE); 208 } 209 mutex_unlock(&svcraw_lock); 210 211 return (SVCAUTH_UNWRAP(&SVC_AUTH(xprt), &srp->xdr_stream, 212 xdr_args, args_ptr)); 213} 214 215/*ARGSUSED*/ 216static bool_t 217svc_raw_freeargs(SVCXPRT *xprt, xdrproc_t xdr_args, void *args_ptr) 218{ 219 struct svc_raw_private *srp; 220 XDR *xdrs; 221 222 mutex_lock(&svcraw_lock); 223 srp = svc_raw_private; 224 if (srp == NULL) { 225 mutex_unlock(&svcraw_lock); 226 return (FALSE); 227 } 228 mutex_unlock(&svcraw_lock); 229 230 xdrs = &srp->xdr_stream; 231 xdrs->x_op = XDR_FREE; 232 return (*xdr_args)(xdrs, args_ptr); 233} 234 235/*ARGSUSED*/ 236static void 237svc_raw_destroy(SVCXPRT *xprt) 238{ 239} 240 241/*ARGSUSED*/ 242static bool_t 243svc_raw_control(SVCXPRT *xprt, const u_int rq, void *in) 244{ 245 return (FALSE); 246} 247 248static void 249svc_raw_ops(SVCXPRT *xprt) 250{ 251 static struct xp_ops ops; 252 static struct xp_ops2 ops2; 253 254/* VARIABLES PROTECTED BY ops_lock: ops */ 255 256 mutex_lock(&ops_lock); 257 if (ops.xp_recv == NULL) { 258 ops.xp_recv = svc_raw_recv; 259 ops.xp_stat = svc_raw_stat; 260 ops.xp_getargs = svc_raw_getargs; 261 ops.xp_reply = svc_raw_reply; 262 ops.xp_freeargs = svc_raw_freeargs; 263 ops.xp_destroy = svc_raw_destroy; 264 ops2.xp_control = svc_raw_control; 265 } 266 xprt->xp_ops = &ops; 267 xprt->xp_ops2 = &ops2; 268 mutex_unlock(&ops_lock); 269} 270