1 /* $NetBSD: svc_raw.c,v 1.17 2003/09/09 03:56:40 itojun Exp $ */ 2 3 /* 4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 5 * unrestricted use provided that this legend is included on all tape 6 * media and as a part of the software program in whole or part. Users 7 * may copy or modify Sun RPC without charge, but are not authorized 8 * to license or distribute it to anyone else except as part of a product or 9 * program developed by the user. 10 * 11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 14 * 15 * Sun RPC is provided with no support and without any obligation on the 16 * part of Sun Microsystems, Inc. to assist in its use, correction, 17 * modification or enhancement. 18 * 19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 21 * OR ANY PART THEREOF. 22 * 23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 24 * or profits or other special, indirect and consequential damages, even if 25 * Sun has been advised of the possibility of such damages. 26 * 27 * Sun Microsystems, Inc. 28 * 2550 Garcia Avenue 29 * Mountain View, California 94043 30 */ 31 /* 32 * Copyright (c) 1986-1991 by Sun Microsystems Inc. 33 */ 34 35 /* #ident "@(#)svc_raw.c 1.16 94/04/24 SMI" */ 36 37 #include <sys/cdefs.h> 38 #if defined(LIBC_SCCS) && !defined(lint) 39 #if 0 40 static char sccsid[] = "@(#)svc_raw.c 1.25 89/01/31 Copyr 1984 Sun Micro"; 41 #else 42 __RCSID("$NetBSD: svc_raw.c,v 1.17 2003/09/09 03:56:40 itojun Exp $"); 43 #endif 44 #endif 45 46 /* 47 * svc_raw.c, This a toy for simple testing and timing. 48 * Interface to create an rpc client and server in the same UNIX process. 49 * This lets us similate rpc and get rpc (round trip) overhead, without 50 * any interference from the kernal. 51 * 52 */ 53 54 #include "namespace.h" 55 #include "reentrant.h" 56 #include <rpc/rpc.h> 57 #include <sys/types.h> 58 #include <rpc/raw.h> 59 #include <assert.h> 60 #include <stdlib.h> 61 62 #ifdef __weak_alias 63 __weak_alias(svc_raw_create,_svc_raw_create) 64 #endif 65 66 #ifndef UDPMSGSIZE 67 #define UDPMSGSIZE 8800 68 #endif 69 70 /* 71 * This is the "network" that we will be moving data over 72 */ 73 static struct svc_raw_private { 74 char *raw_buf; /* should be shared with the cl handle */ 75 SVCXPRT server; 76 XDR xdr_stream; 77 char verf_body[MAX_AUTH_BYTES]; 78 } *svc_raw_private; 79 80 #ifdef _REENTRANT 81 extern mutex_t svcraw_lock; 82 #endif 83 84 static enum xprt_stat svc_raw_stat __P((SVCXPRT *)); 85 static bool_t svc_raw_recv __P((SVCXPRT *, struct rpc_msg *)); 86 static bool_t svc_raw_reply __P((SVCXPRT *, struct rpc_msg *)); 87 static bool_t svc_raw_getargs __P((SVCXPRT *, xdrproc_t, caddr_t)); 88 static bool_t svc_raw_freeargs __P((SVCXPRT *, xdrproc_t, caddr_t)); 89 static void svc_raw_destroy __P((SVCXPRT *)); 90 static void svc_raw_ops __P((SVCXPRT *)); 91 static bool_t svc_raw_control __P((SVCXPRT *, const u_int, void *)); 92 93 char *__rpc_rawcombuf = NULL; 94 95 SVCXPRT * 96 svc_raw_create() 97 { 98 struct svc_raw_private *srp; 99 /* VARIABLES PROTECTED BY svcraw_lock: svc_raw_private, srp */ 100 101 mutex_lock(&svcraw_lock); 102 srp = svc_raw_private; 103 if (srp == NULL) { 104 srp = (struct svc_raw_private *)calloc(1, sizeof (*srp)); 105 if (srp == NULL) { 106 mutex_unlock(&svcraw_lock); 107 return (NULL); 108 } 109 if (__rpc_rawcombuf == NULL) 110 __rpc_rawcombuf = calloc(UDPMSGSIZE, sizeof (char)); 111 srp->raw_buf = __rpc_rawcombuf; /* Share it with the client */ 112 svc_raw_private = srp; 113 } 114 srp->server.xp_fd = FD_SETSIZE; 115 srp->server.xp_port = 0; 116 srp->server.xp_p3 = NULL; 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(xprt) 128 SVCXPRT *xprt; /* args needed to satisfy ANSI-C typechecking */ 129 { 130 return (XPRT_IDLE); 131 } 132 133 /*ARGSUSED*/ 134 static bool_t 135 svc_raw_recv(xprt, msg) 136 SVCXPRT *xprt; 137 struct rpc_msg *msg; 138 { 139 struct svc_raw_private *srp; 140 XDR *xdrs; 141 142 mutex_lock(&svcraw_lock); 143 srp = svc_raw_private; 144 if (srp == NULL) { 145 mutex_unlock(&svcraw_lock); 146 return (FALSE); 147 } 148 mutex_unlock(&svcraw_lock); 149 150 xdrs = &srp->xdr_stream; 151 xdrs->x_op = XDR_DECODE; 152 (void) XDR_SETPOS(xdrs, 0); 153 if (! xdr_callmsg(xdrs, msg)) { 154 return (FALSE); 155 } 156 return (TRUE); 157 } 158 159 /*ARGSUSED*/ 160 static bool_t 161 svc_raw_reply(xprt, msg) 162 SVCXPRT *xprt; 163 struct rpc_msg *msg; 164 { 165 struct svc_raw_private *srp; 166 XDR *xdrs; 167 168 mutex_lock(&svcraw_lock); 169 srp = svc_raw_private; 170 if (srp == NULL) { 171 mutex_unlock(&svcraw_lock); 172 return (FALSE); 173 } 174 mutex_unlock(&svcraw_lock); 175 176 xdrs = &srp->xdr_stream; 177 xdrs->x_op = XDR_ENCODE; 178 (void) XDR_SETPOS(xdrs, 0); 179 if (! xdr_replymsg(xdrs, msg)) { 180 return (FALSE); 181 } 182 (void) XDR_GETPOS(xdrs); /* called just for overhead */ 183 return (TRUE); 184 } 185 186 /*ARGSUSED*/ 187 static bool_t 188 svc_raw_getargs(xprt, xdr_args, args_ptr) 189 SVCXPRT *xprt; 190 xdrproc_t xdr_args; 191 caddr_t args_ptr; 192 { 193 struct svc_raw_private *srp; 194 195 mutex_lock(&svcraw_lock); 196 srp = svc_raw_private; 197 if (srp == NULL) { 198 mutex_unlock(&svcraw_lock); 199 return (FALSE); 200 } 201 mutex_unlock(&svcraw_lock); 202 return (*xdr_args)(&srp->xdr_stream, args_ptr); 203 } 204 205 /*ARGSUSED*/ 206 static bool_t 207 svc_raw_freeargs(xprt, xdr_args, args_ptr) 208 SVCXPRT *xprt; 209 xdrproc_t xdr_args; 210 caddr_t args_ptr; 211 { 212 struct svc_raw_private *srp; 213 XDR *xdrs; 214 215 mutex_lock(&svcraw_lock); 216 srp = svc_raw_private; 217 if (srp == NULL) { 218 mutex_unlock(&svcraw_lock); 219 return (FALSE); 220 } 221 mutex_unlock(&svcraw_lock); 222 223 xdrs = &srp->xdr_stream; 224 xdrs->x_op = XDR_FREE; 225 return (*xdr_args)(xdrs, args_ptr); 226 } 227 228 /*ARGSUSED*/ 229 static void 230 svc_raw_destroy(xprt) 231 SVCXPRT *xprt; 232 { 233 } 234 235 /*ARGSUSED*/ 236 static bool_t 237 svc_raw_control(xprt, rq, in) 238 SVCXPRT *xprt; 239 const u_int rq; 240 void *in; 241 { 242 return (FALSE); 243 } 244 245 static void 246 svc_raw_ops(xprt) 247 SVCXPRT *xprt; 248 { 249 static struct xp_ops ops; 250 static struct xp_ops2 ops2; 251 #ifdef _REENTRANT 252 extern mutex_t ops_lock; 253 #endif 254 255 _DIAGASSERT(xprt != NULL); 256 257 /* VARIABLES PROTECTED BY ops_lock: ops */ 258 259 mutex_lock(&ops_lock); 260 if (ops.xp_recv == NULL) { 261 ops.xp_recv = svc_raw_recv; 262 ops.xp_stat = svc_raw_stat; 263 ops.xp_getargs = svc_raw_getargs; 264 ops.xp_reply = svc_raw_reply; 265 ops.xp_freeargs = svc_raw_freeargs; 266 ops.xp_destroy = svc_raw_destroy; 267 ops2.xp_control = svc_raw_control; 268 } 269 xprt->xp_ops = &ops; 270 xprt->xp_ops2 = &ops2; 271 mutex_unlock(&ops_lock); 272 } 273