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