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