clnt_raw.c revision 1.14
1 /* $NetBSD: clnt_raw.c,v 1.14 1999/01/20 11:37:35 lukem 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 #include <sys/cdefs.h> 33 #if defined(LIBC_SCCS) && !defined(lint) 34 #if 0 35 static char *sccsid = "@(#)clnt_raw.c 1.22 87/08/11 Copyr 1984 Sun Micro"; 36 static char *sccsid = "@(#)clnt_raw.c 2.2 88/08/01 4.0 RPCSRC"; 37 #else 38 __RCSID("$NetBSD: clnt_raw.c,v 1.14 1999/01/20 11:37:35 lukem Exp $"); 39 #endif 40 #endif 41 42 /* 43 * clnt_raw.c 44 * 45 * Copyright (C) 1984, Sun Microsystems, Inc. 46 * 47 * Memory based rpc for simple testing and timing. 48 * Interface to create an rpc client and server in the same process. 49 * This lets us similate rpc and get round trip overhead, without 50 * any interference from the kernal. 51 */ 52 53 #include "namespace.h" 54 55 #include <err.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 59 #include <rpc/rpc.h> 60 61 #ifdef __weak_alias 62 __weak_alias(clntraw_create,_clntraw_create); 63 #endif 64 65 #define MCALL_MSG_SIZE 24 66 67 /* 68 * This is the "network" we will be moving stuff over. 69 */ 70 static struct clntraw_private { 71 CLIENT client_object; 72 XDR xdr_stream; 73 char _raw_buf[UDPMSGSIZE]; 74 union { 75 struct rpc_msg mashl_rpcmsg; 76 char mashl_callmsg[MCALL_MSG_SIZE]; 77 } u; 78 u_int mcnt; 79 } *clntraw_private; 80 81 82 83 static enum clnt_stat clntraw_call __P((CLIENT *, u_long, xdrproc_t, 84 caddr_t, xdrproc_t, caddr_t, struct timeval)); 85 static void clntraw_geterr __P((CLIENT *, struct rpc_err *)); 86 static bool_t clntraw_freeres __P((CLIENT *, xdrproc_t, caddr_t)); 87 static void clntraw_abort __P((CLIENT *)); 88 static bool_t clntraw_control __P((CLIENT *, u_int, char *)); 89 static void clntraw_destroy __P((CLIENT *)); 90 91 static const struct clnt_ops client_ops = { 92 clntraw_call, 93 clntraw_abort, 94 clntraw_geterr, 95 clntraw_freeres, 96 clntraw_destroy, 97 clntraw_control 98 }; 99 100 /* 101 * Create a client handle for memory based rpc. 102 */ 103 CLIENT * 104 clntraw_create(prog, vers) 105 u_long prog; 106 u_long vers; 107 { 108 struct clntraw_private *clp = clntraw_private; 109 struct rpc_msg call_msg; 110 XDR *xdrs = &clp->xdr_stream; 111 CLIENT *client = &clp->client_object; 112 113 if (clp == 0) { 114 clp = (struct clntraw_private *)calloc(1, sizeof (*clp)); 115 if (clp == 0) 116 return (0); 117 clntraw_private = clp; 118 } 119 /* 120 * pre-serialize the static part of the call msg and stash it away 121 */ 122 call_msg.rm_direction = CALL; 123 call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; 124 /* XXX: prog and vers have been long historically :-( */ 125 call_msg.rm_call.cb_prog = (u_int32_t)prog; 126 call_msg.rm_call.cb_vers = (u_int32_t)vers; 127 xdrmem_create(xdrs, clp->u.mashl_callmsg, MCALL_MSG_SIZE, XDR_ENCODE); 128 if (! xdr_callhdr(xdrs, &call_msg)) 129 warnx("clntraw_create - Fatal header serialization error."); 130 clp->mcnt = XDR_GETPOS(xdrs); 131 XDR_DESTROY(xdrs); 132 133 /* 134 * Set xdrmem for client/server shared buffer 135 */ 136 xdrmem_create(xdrs, clp->_raw_buf, UDPMSGSIZE, XDR_FREE); 137 138 /* 139 * create client handle 140 */ 141 client->cl_ops = &client_ops; 142 client->cl_auth = authnone_create(); 143 return (client); 144 } 145 146 /* ARGSUSED */ 147 static enum clnt_stat 148 clntraw_call(h, proc, xargs, argsp, xresults, resultsp, timeout) 149 CLIENT *h; 150 u_long proc; 151 xdrproc_t xargs; 152 caddr_t argsp; 153 xdrproc_t xresults; 154 caddr_t resultsp; 155 struct timeval timeout; 156 { 157 struct clntraw_private *clp = clntraw_private; 158 XDR *xdrs = &clp->xdr_stream; 159 struct rpc_msg msg; 160 enum clnt_stat status; 161 struct rpc_err error; 162 163 if (clp == 0) 164 return (RPC_FAILED); 165 call_again: 166 /* 167 * send request 168 */ 169 xdrs->x_op = XDR_ENCODE; 170 XDR_SETPOS(xdrs, 0); 171 clp->u.mashl_rpcmsg.rm_xid ++ ; 172 if ((! XDR_PUTBYTES(xdrs, clp->u.mashl_callmsg, clp->mcnt)) || 173 (! XDR_PUTLONG(xdrs, (long *)&proc)) || 174 (! AUTH_MARSHALL(h->cl_auth, xdrs)) || 175 (! (*xargs)(xdrs, argsp))) { 176 return (RPC_CANTENCODEARGS); 177 } 178 (void)XDR_GETPOS(xdrs); /* called just to cause overhead */ 179 180 /* 181 * We have to call server input routine here because this is 182 * all going on in one process. Yuk. 183 */ 184 svc_getreq(1); 185 186 /* 187 * get results 188 */ 189 xdrs->x_op = XDR_DECODE; 190 XDR_SETPOS(xdrs, 0); 191 msg.acpted_rply.ar_verf = _null_auth; 192 msg.acpted_rply.ar_results.where = resultsp; 193 msg.acpted_rply.ar_results.proc = xresults; 194 if (! xdr_replymsg(xdrs, &msg)) { 195 /* 196 * It's possible for xdr_replymsg() to fail partway 197 * through its attempt to decode the result from the 198 * server. If this happens, it will leave the reply 199 * structure partially populated with dynamically 200 * allocated memory. (This can happen if someone uses 201 * clntudp_bufcreate() to create a CLIENT handle and 202 * specifies a receive buffer size that is too small.) 203 * This memory must be free()ed to avoid a leak. 204 */ 205 int op = xdrs->x_op; 206 xdrs->x_op = XDR_FREE; 207 xdr_replymsg(xdrs, &msg); 208 xdrs->x_op = op; 209 return (RPC_CANTDECODERES); 210 } 211 _seterr_reply(&msg, &error); 212 status = error.re_status; 213 214 if (status == RPC_SUCCESS) { 215 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) { 216 status = RPC_AUTHERROR; 217 } 218 } /* end successful completion */ 219 else { 220 if (AUTH_REFRESH(h->cl_auth)) 221 goto call_again; 222 } /* end of unsuccessful completion */ 223 224 if (status == RPC_SUCCESS) { 225 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) { 226 status = RPC_AUTHERROR; 227 } 228 if (msg.acpted_rply.ar_verf.oa_base != NULL) { 229 xdrs->x_op = XDR_FREE; 230 (void)xdr_opaque_auth(xdrs, &(msg.acpted_rply.ar_verf)); 231 } 232 } 233 234 return (status); 235 } 236 237 /*ARGSUSED*/ 238 static void 239 clntraw_geterr(cl, err) 240 CLIENT *cl; 241 struct rpc_err *err; 242 { 243 } 244 245 246 /* ARGSUSED */ 247 static bool_t 248 clntraw_freeres(cl, xdr_res, res_ptr) 249 CLIENT *cl; 250 xdrproc_t xdr_res; 251 caddr_t res_ptr; 252 { 253 struct clntraw_private *clp = clntraw_private; 254 XDR *xdrs = &clp->xdr_stream; 255 bool_t rval; 256 257 if (clp == 0) { 258 rval = (bool_t) RPC_FAILED; 259 return (rval); 260 } 261 xdrs->x_op = XDR_FREE; 262 return ((*xdr_res)(xdrs, res_ptr)); 263 } 264 265 /*ARGSUSED*/ 266 static void 267 clntraw_abort(cl) 268 CLIENT *cl; 269 { 270 } 271 272 /*ARGSUSED*/ 273 static bool_t 274 clntraw_control(cl, ui, str) 275 CLIENT *cl; 276 u_int ui; 277 char *str; 278 { 279 return (FALSE); 280 } 281 282 /*ARGSUSED*/ 283 static void 284 clntraw_destroy(cl) 285 CLIENT *cl; 286 { 287 } 288
Indexes created Mon Sep 29 21:09:56 GMT 2025