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) 39 static char sccsid[] = "@(#)svc_raw.c 1.25 89/01/31 Copyr 1984 Sun Micro"; 40 #endif 41 #include <sys/cdefs.h> 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 */ 66 static 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 73 static enum xprt_stat svc_raw_stat(SVCXPRT *); 74 static bool_t svc_raw_recv(SVCXPRT *, struct rpc_msg *); 75 static bool_t svc_raw_reply(SVCXPRT *, struct rpc_msg *); 76 static bool_t svc_raw_getargs(SVCXPRT *, xdrproc_t, void *); 77 static bool_t svc_raw_freeargs(SVCXPRT *, xdrproc_t, void *); 78 static void svc_raw_destroy(SVCXPRT *); 79 static void svc_raw_ops(SVCXPRT *); 80 static bool_t svc_raw_control(SVCXPRT *, const u_int, void *); 81 82 char *__rpc_rawcombuf = NULL; 83 84 SVCXPRT * 85 svc_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*/ 127 static enum xprt_stat 128 svc_raw_stat(SVCXPRT *xprt) 129 { 130 return (XPRT_IDLE); 131 } 132 133 /*ARGSUSED*/ 134 static bool_t 135 svc_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*/ 158 static bool_t 159 svc_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*/ 198 static bool_t 199 svc_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*/ 216 static bool_t 217 svc_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*/ 236 static void 237 svc_raw_destroy(SVCXPRT *xprt) 238 { 239 } 240 241 /*ARGSUSED*/ 242 static bool_t 243 svc_raw_control(SVCXPRT *xprt, const u_int rq, void *in) 244 { 245 return (FALSE); 246 } 247 248 static void 249 svc_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