svc_raw.c revision 261046
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 261046 2014-01-22 23:45:27Z mav $"); 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() 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(xprt) 129SVCXPRT *xprt; /* args needed to satisfy ANSI-C typechecking */ 130{ 131 return (XPRT_IDLE); 132} 133 134/*ARGSUSED*/ 135static bool_t 136svc_raw_recv(xprt, msg) 137 SVCXPRT *xprt; 138 struct rpc_msg *msg; 139{ 140 struct svc_raw_private *srp; 141 XDR *xdrs; 142 143 mutex_lock(&svcraw_lock); 144 srp = svc_raw_private; 145 if (srp == NULL) { 146 mutex_unlock(&svcraw_lock); 147 return (FALSE); 148 } 149 mutex_unlock(&svcraw_lock); 150 151 xdrs = &srp->xdr_stream; 152 xdrs->x_op = XDR_DECODE; 153 (void) XDR_SETPOS(xdrs, 0); 154 if (! xdr_callmsg(xdrs, msg)) { 155 return (FALSE); 156 } 157 return (TRUE); 158} 159 160/*ARGSUSED*/ 161static bool_t 162svc_raw_reply(xprt, msg) 163 SVCXPRT *xprt; 164 struct rpc_msg *msg; 165{ 166 struct svc_raw_private *srp; 167 XDR *xdrs; 168 bool_t stat; 169 xdrproc_t xdr_proc; 170 caddr_t xdr_where; 171 172 mutex_lock(&svcraw_lock); 173 srp = svc_raw_private; 174 if (srp == NULL) { 175 mutex_unlock(&svcraw_lock); 176 return (FALSE); 177 } 178 mutex_unlock(&svcraw_lock); 179 180 xdrs = &srp->xdr_stream; 181 xdrs->x_op = XDR_ENCODE; 182 (void) XDR_SETPOS(xdrs, 0); 183 if (msg->rm_reply.rp_stat == MSG_ACCEPTED && 184 msg->rm_reply.rp_acpt.ar_stat == SUCCESS) { 185 xdr_proc = msg->acpted_rply.ar_results.proc; 186 xdr_where = msg->acpted_rply.ar_results.where; 187 msg->acpted_rply.ar_results.proc = (xdrproc_t) xdr_void; 188 msg->acpted_rply.ar_results.where = NULL; 189 190 stat = xdr_replymsg(xdrs, msg) && 191 SVCAUTH_WRAP(&SVC_AUTH(xprt), xdrs, xdr_proc, xdr_where); 192 } else { 193 stat = xdr_replymsg(xdrs, msg); 194 } 195 if (!stat) { 196 return (FALSE); 197 } 198 (void) XDR_GETPOS(xdrs); /* called just for overhead */ 199 return (TRUE); 200} 201 202/*ARGSUSED*/ 203static bool_t 204svc_raw_getargs(xprt, xdr_args, args_ptr) 205 SVCXPRT *xprt; 206 xdrproc_t xdr_args; 207 void *args_ptr; 208{ 209 struct svc_raw_private *srp; 210 211 mutex_lock(&svcraw_lock); 212 srp = svc_raw_private; 213 if (srp == NULL) { 214 mutex_unlock(&svcraw_lock); 215 return (FALSE); 216 } 217 mutex_unlock(&svcraw_lock); 218 219 return (SVCAUTH_UNWRAP(&SVC_AUTH(xprt), &srp->xdr_stream, 220 xdr_args, args_ptr)); 221} 222 223/*ARGSUSED*/ 224static bool_t 225svc_raw_freeargs(xprt, xdr_args, args_ptr) 226 SVCXPRT *xprt; 227 xdrproc_t xdr_args; 228 void *args_ptr; 229{ 230 struct svc_raw_private *srp; 231 XDR *xdrs; 232 233 mutex_lock(&svcraw_lock); 234 srp = svc_raw_private; 235 if (srp == NULL) { 236 mutex_unlock(&svcraw_lock); 237 return (FALSE); 238 } 239 mutex_unlock(&svcraw_lock); 240 241 xdrs = &srp->xdr_stream; 242 xdrs->x_op = XDR_FREE; 243 return (*xdr_args)(xdrs, args_ptr); 244} 245 246/*ARGSUSED*/ 247static void 248svc_raw_destroy(xprt) 249SVCXPRT *xprt; 250{ 251} 252 253/*ARGSUSED*/ 254static bool_t 255svc_raw_control(xprt, rq, in) 256 SVCXPRT *xprt; 257 const u_int rq; 258 void *in; 259{ 260 return (FALSE); 261} 262 263static void 264svc_raw_ops(xprt) 265 SVCXPRT *xprt; 266{ 267 static struct xp_ops ops; 268 static struct xp_ops2 ops2; 269 270/* VARIABLES PROTECTED BY ops_lock: ops */ 271 272 mutex_lock(&ops_lock); 273 if (ops.xp_recv == NULL) { 274 ops.xp_recv = svc_raw_recv; 275 ops.xp_stat = svc_raw_stat; 276 ops.xp_getargs = svc_raw_getargs; 277 ops.xp_reply = svc_raw_reply; 278 ops.xp_freeargs = svc_raw_freeargs; 279 ops.xp_destroy = svc_raw_destroy; 280 ops2.xp_control = svc_raw_control; 281 } 282 xprt->xp_ops = &ops; 283 xprt->xp_ops2 = &ops2; 284 mutex_unlock(&ops_lock); 285} 286