clnt_raw.c revision 1.8
1 /* $NetBSD: clnt_raw.c,v 1.8 1998/02/11 07:50:07 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 1.8 1998/02/11 07:50:07 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 <stdio.h> 56 #include <stdlib.h> 57 58 #include <rpc/rpc.h> 59 60 #ifdef __weak_alias 61 __weak_alias(clntraw_create,_clntraw_create); 62 #endif 63 64 #define MCALL_MSG_SIZE 24 65 66 /* 67 * This is the "network" we will be moving stuff over. 68 */ 69 static struct clntraw_private { 70 CLIENT client_object; 71 XDR xdr_stream; 72 char _raw_buf[UDPMSGSIZE]; 73 char mashl_callmsg[MCALL_MSG_SIZE]; 74 size_t mcnt; 75 } *clntraw_private; 76 77 78 79 static enum clnt_stat clntraw_call __P((CLIENT *, u_int32_t, xdrproc_t, 80 caddr_t, xdrproc_t, caddr_t, struct timeval)); 81 static void clntraw_geterr __P((CLIENT *, struct rpc_err *)); 82 static bool_t clntraw_freeres __P((CLIENT *, xdrproc_t, caddr_t)); 83 static void clntraw_abort __P((CLIENT *)); 84 static bool_t clntraw_control __P((CLIENT *, u_int, caddr_t)); 85 static void clntraw_destroy __P((CLIENT *)); 86 87 static struct clnt_ops client_ops = { 88 clntraw_call, 89 clntraw_abort, 90 clntraw_geterr, 91 clntraw_freeres, 92 clntraw_destroy, 93 clntraw_control 94 }; 95 96 /* 97 * Create a client handle for memory based rpc. 98 */ 99 CLIENT * 100 clntraw_create(prog, vers) 101 u_int32_t prog; 102 u_int32_t vers; 103 { 104 struct clntraw_private *clp = clntraw_private; 105 struct rpc_msg call_msg; 106 XDR *xdrs = &clp->xdr_stream; 107 CLIENT *client = &clp->client_object; 108 109 if (clp == NULL) { 110 clp = (struct clntraw_private *)calloc(1, sizeof (*clp)); 111 if (clp == NULL) 112 return (NULL); 113 clntraw_private = clp; 114 } 115 /* 116 * pre-serialize the staic part of the call msg and stash it away 117 */ 118 call_msg.rm_direction = CALL; 119 call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; 120 call_msg.rm_call.cb_prog = prog; 121 call_msg.rm_call.cb_vers = vers; 122 xdrmem_create(xdrs, clp->mashl_callmsg, MCALL_MSG_SIZE, XDR_ENCODE); 123 if (! xdr_callhdr(xdrs, &call_msg)) { 124 perror("clnt_raw.c - Fatal header serialization error."); 125 } 126 clp->mcnt = XDR_GETPOS(xdrs); 127 XDR_DESTROY(xdrs); 128 129 /* 130 * Set xdrmem for client/server shared buffer 131 */ 132 xdrmem_create(xdrs, clp->_raw_buf, UDPMSGSIZE, XDR_FREE); 133 134 /* 135 * create client handle 136 */ 137 client->cl_ops = &client_ops; 138 client->cl_auth = authnone_create(); 139 return (client); 140 } 141 142 static enum clnt_stat 143 clntraw_call(h, proc, xargs, argsp, xresults, resultsp, timeout) 144 CLIENT *h; 145 u_int32_t proc; 146 xdrproc_t xargs; 147 caddr_t argsp; 148 xdrproc_t xresults; 149 caddr_t resultsp; 150 struct timeval timeout; 151 { 152 struct clntraw_private *clp = clntraw_private; 153 XDR *xdrs = &clp->xdr_stream; 154 struct rpc_msg msg; 155 enum clnt_stat status; 156 struct rpc_err error; 157 158 if (clp == NULL) 159 return (RPC_FAILED); 160 call_again: 161 /* 162 * send request 163 */ 164 xdrs->x_op = XDR_ENCODE; 165 XDR_SETPOS(xdrs, 0); 166 ((struct rpc_msg *)clp->mashl_callmsg)->rm_xid ++ ; 167 if ((! XDR_PUTBYTES(xdrs, clp->mashl_callmsg, clp->mcnt)) || 168 (! XDR_PUTLONG(xdrs, &proc)) || 169 (! AUTH_MARSHALL(h->cl_auth, xdrs)) || 170 (! (*xargs)(xdrs, argsp))) { 171 return (RPC_CANTENCODEARGS); 172 } 173 (void)XDR_GETPOS(xdrs); /* called just to cause overhead */ 174 175 /* 176 * We have to call server input routine here because this is 177 * all going on in one process. Yuk. 178 */ 179 svc_getreq(1); 180 181 /* 182 * get results 183 */ 184 xdrs->x_op = XDR_DECODE; 185 XDR_SETPOS(xdrs, 0); 186 msg.acpted_rply.ar_verf = _null_auth; 187 msg.acpted_rply.ar_results.where = resultsp; 188 msg.acpted_rply.ar_results.proc = xresults; 189 if (! xdr_replymsg(xdrs, &msg)) { 190 /* 191 * It's possible for xdr_replymsg() to fail partway 192 * through its attempt to decode the result from the 193 * server. If this happens, it will leave the reply 194 * structure partially populated with dynamically 195 * allocated memory. (This can happen if someone uses 196 * clntudp_bufcreate() to create a CLIENT handle and 197 * specifies a receive buffer size that is too small.) 198 * This memory must be free()ed to avoid a leak. 199 */ 200 int op = xdrs->x_op; 201 xdrs->x_op = XDR_FREE; 202 xdr_replymsg(xdrs, &msg); 203 xdrs->x_op = op; 204 return (RPC_CANTDECODERES); 205 } 206 _seterr_reply(&msg, &error); 207 status = error.re_status; 208 209 if (status == RPC_SUCCESS) { 210 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) { 211 status = RPC_AUTHERROR; 212 } 213 } /* end successful completion */ 214 else { 215 if (AUTH_REFRESH(h->cl_auth)) 216 goto call_again; 217 } /* end of unsuccessful completion */ 218 219 if (status == RPC_SUCCESS) { 220 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) { 221 status = RPC_AUTHERROR; 222 } 223 if (msg.acpted_rply.ar_verf.oa_base != NULL) { 224 xdrs->x_op = XDR_FREE; 225 (void)xdr_opaque_auth(xdrs, &(msg.acpted_rply.ar_verf)); 226 } 227 } 228 229 return (status); 230 } 231 232 /*ARGSUSED*/ 233 static void 234 clntraw_geterr(cl, err) 235 CLIENT *cl; 236 struct rpc_err *err; 237 { 238 } 239 240 241 static bool_t 242 clntraw_freeres(cl, xdr_res, res_ptr) 243 CLIENT *cl; 244 xdrproc_t xdr_res; 245 caddr_t res_ptr; 246 { 247 struct clntraw_private *clp = clntraw_private; 248 XDR *xdrs = &clp->xdr_stream; 249 bool_t rval; 250 251 if (clp == NULL) { 252 rval = (bool_t) RPC_FAILED; 253 return (rval); 254 } 255 xdrs->x_op = XDR_FREE; 256 return ((*xdr_res)(xdrs, res_ptr)); 257 } 258 259 /*ARGSUSED*/ 260 static void 261 clntraw_abort(cl) 262 CLIENT *cl; 263 { 264 } 265 266 /*ARGSUSED*/ 267 static bool_t 268 clntraw_control(cl, ui, str) 269 CLIENT *cl; 270 u_int ui; 271 caddr_t str; 272 { 273 return (FALSE); 274 } 275 276 /*ARGSUSED*/ 277 static void 278 clntraw_destroy(cl) 279 CLIENT *cl; 280 { 281 } 282
Indexes created Mon Sep 29 21:09:56 GMT 2025