1 /* $NetBSD: svc_raw.c,v 1.14 2000/07/06 03:10:35 christos 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 #if defined(LIBC_SCCS) && !defined(lint) 38 static char sccsid[] = "@(#)svc_raw.c 1.25 89/01/31 Copyr 1984 Sun Micro"; 39 #endif 40 #include <sys/cdefs.h> 41 __FBSDID("$FreeBSD$"); 42 43 /* 44 * svc_raw.c, This a toy for simple testing and timing. 45 * Interface to create an rpc client and server in the same UNIX process. 46 * This lets us similate rpc and get rpc (round trip) overhead, without 47 * any interference from the kernel. 48 * 49 */ 50 51 #include "namespace.h" 52 #include "reentrant.h" 53 #include <rpc/rpc.h> 54 #include <sys/types.h> 55 #include <rpc/raw.h> 56 #include <stdlib.h> 57 #include "un-namespace.h" 58 #include "mt_misc.h" 59 60 #ifndef UDPMSGSIZE 61 #define UDPMSGSIZE 8800 62 #endif 63 64 /* 65 * This is the "network" that we will be moving data over 66 */ 67 static struct svc_raw_private { 68 char *raw_buf; /* should be shared with the cl handle */ 69 SVCXPRT *server; 70 XDR xdr_stream; 71 char verf_body[MAX_AUTH_BYTES]; 72 } *svc_raw_private; 73 74 static enum xprt_stat svc_raw_stat(SVCXPRT *); 75 static bool_t svc_raw_recv(SVCXPRT *, struct rpc_msg *); 76 static bool_t svc_raw_reply(SVCXPRT *, struct rpc_msg *); 77 static bool_t svc_raw_getargs(SVCXPRT *, xdrproc_t, void *); 78 static bool_t svc_raw_freeargs(SVCXPRT *, xdrproc_t, void *); 79 static void svc_raw_destroy(SVCXPRT *); 80 static void svc_raw_ops(SVCXPRT *); 81 static bool_t svc_raw_control(SVCXPRT *, const u_int, void *); 82 83 char *__rpc_rawcombuf = NULL; 84 85 SVCXPRT * 86 svc_raw_create() 87 { 88 struct svc_raw_private *srp; 89 /* VARIABLES PROTECTED BY svcraw_lock: svc_raw_private, srp */ 90 91 mutex_lock(&svcraw_lock); 92 srp = svc_raw_private; 93 if (srp == NULL) { 94 srp = (struct svc_raw_private *)calloc(1, sizeof (*srp)); 95 if (srp == NULL) { 96 mutex_unlock(&svcraw_lock); 97 return (NULL); 98 } 99 if (__rpc_rawcombuf == NULL) { 100 __rpc_rawcombuf = calloc(UDPMSGSIZE, sizeof (char)); 101 if (__rpc_rawcombuf == NULL) { 102 free(srp); 103 mutex_unlock(&svcraw_lock); 104 return (NULL); 105 } 106 } 107 srp->raw_buf = __rpc_rawcombuf; /* Share it with the client */ 108 srp->server = svc_xprt_alloc(); 109 if (srp->server == NULL) { 110 free(__rpc_rawcombuf); 111 free(srp); 112 mutex_unlock(&svcraw_lock); 113 return (NULL); 114 } 115 svc_raw_private = srp; 116 } 117 srp->server->xp_fd = FD_SETSIZE; 118 srp->server->xp_port = 0; 119 svc_raw_ops(srp->server); 120 srp->server->xp_verf.oa_base = srp->verf_body; 121 xdrmem_create(&srp->xdr_stream, srp->raw_buf, UDPMSGSIZE, XDR_DECODE); 122 xprt_register(srp->server); 123 mutex_unlock(&svcraw_lock); 124 return (srp->server); 125 } 126 127 /*ARGSUSED*/ 128 static enum xprt_stat 129 svc_raw_stat(xprt) 130 SVCXPRT *xprt; /* args needed to satisfy ANSI-C typechecking */ 131 { 132 return (XPRT_IDLE); 133 } 134 135 /*ARGSUSED*/ 136 static bool_t 137 svc_raw_recv(xprt, msg) 138 SVCXPRT *xprt; 139 struct rpc_msg *msg; 140 { 141 struct svc_raw_private *srp; 142 XDR *xdrs; 143 144 mutex_lock(&svcraw_lock); 145 srp = svc_raw_private; 146 if (srp == NULL) { 147 mutex_unlock(&svcraw_lock); 148 return (FALSE); 149 } 150 mutex_unlock(&svcraw_lock); 151 152 xdrs = &srp->xdr_stream; 153 xdrs->x_op = XDR_DECODE; 154 (void) XDR_SETPOS(xdrs, 0); 155 if (! xdr_callmsg(xdrs, msg)) { 156 return (FALSE); 157 } 158 return (TRUE); 159 } 160 161 /*ARGSUSED*/ 162 static bool_t 163 svc_raw_reply(xprt, msg) 164 SVCXPRT *xprt; 165 struct rpc_msg *msg; 166 { 167 struct svc_raw_private *srp; 168 XDR *xdrs; 169 bool_t stat; 170 xdrproc_t xdr_proc; 171 caddr_t xdr_where; 172 173 mutex_lock(&svcraw_lock); 174 srp = svc_raw_private; 175 if (srp == NULL) { 176 mutex_unlock(&svcraw_lock); 177 return (FALSE); 178 } 179 mutex_unlock(&svcraw_lock); 180 181 xdrs = &srp->xdr_stream; 182 xdrs->x_op = XDR_ENCODE; 183 (void) XDR_SETPOS(xdrs, 0); 184 if (msg->rm_reply.rp_stat == MSG_ACCEPTED && 185 msg->rm_reply.rp_acpt.ar_stat == SUCCESS) { 186 xdr_proc = msg->acpted_rply.ar_results.proc; 187 xdr_where = msg->acpted_rply.ar_results.where; 188 msg->acpted_rply.ar_results.proc = (xdrproc_t) xdr_void; 189 msg->acpted_rply.ar_results.where = NULL; 190 191 stat = xdr_replymsg(xdrs, msg) && 192 SVCAUTH_WRAP(&SVC_AUTH(xprt), xdrs, xdr_proc, xdr_where); 193 } else { 194 stat = xdr_replymsg(xdrs, msg); 195 } 196 if (!stat) { 197 return (FALSE); 198 } 199 (void) XDR_GETPOS(xdrs); /* called just for overhead */ 200 return (TRUE); 201 } 202 203 /*ARGSUSED*/ 204 static bool_t 205 svc_raw_getargs(xprt, xdr_args, args_ptr) 206 SVCXPRT *xprt; 207 xdrproc_t xdr_args; 208 void *args_ptr; 209 { 210 struct svc_raw_private *srp; 211 212 mutex_lock(&svcraw_lock); 213 srp = svc_raw_private; 214 if (srp == NULL) { 215 mutex_unlock(&svcraw_lock); 216 return (FALSE); 217 } 218 mutex_unlock(&svcraw_lock); 219 220 return (SVCAUTH_UNWRAP(&SVC_AUTH(xprt), &srp->xdr_stream, 221 xdr_args, args_ptr)); 222 } 223 224 /*ARGSUSED*/ 225 static bool_t 226 svc_raw_freeargs(xprt, xdr_args, args_ptr) 227 SVCXPRT *xprt; 228 xdrproc_t xdr_args; 229 void *args_ptr; 230 { 231 struct svc_raw_private *srp; 232 XDR *xdrs; 233 234 mutex_lock(&svcraw_lock); 235 srp = svc_raw_private; 236 if (srp == NULL) { 237 mutex_unlock(&svcraw_lock); 238 return (FALSE); 239 } 240 mutex_unlock(&svcraw_lock); 241 242 xdrs = &srp->xdr_stream; 243 xdrs->x_op = XDR_FREE; 244 return (*xdr_args)(xdrs, args_ptr); 245 } 246 247 /*ARGSUSED*/ 248 static void 249 svc_raw_destroy(xprt) 250 SVCXPRT *xprt; 251 { 252 } 253 254 /*ARGSUSED*/ 255 static bool_t 256 svc_raw_control(xprt, rq, in) 257 SVCXPRT *xprt; 258 const u_int rq; 259 void *in; 260 { 261 return (FALSE); 262 } 263 264 static void 265 svc_raw_ops(xprt) 266 SVCXPRT *xprt; 267 { 268 static struct xp_ops ops; 269 static struct xp_ops2 ops2; 270 271 /* VARIABLES PROTECTED BY ops_lock: ops */ 272 273 mutex_lock(&ops_lock); 274 if (ops.xp_recv == NULL) { 275 ops.xp_recv = svc_raw_recv; 276 ops.xp_stat = svc_raw_stat; 277 ops.xp_getargs = svc_raw_getargs; 278 ops.xp_reply = svc_raw_reply; 279 ops.xp_freeargs = svc_raw_freeargs; 280 ops.xp_destroy = svc_raw_destroy; 281 ops2.xp_control = svc_raw_control; 282 } 283 xprt->xp_ops = &ops; 284 xprt->xp_ops2 = &ops2; 285 mutex_unlock(&ops_lock); 286 } 287