rpc.subproj/clnt_raw.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.1 (the "License").  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License.
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  26  * unrestricted use provided that this legend is included on all tape
  27  * media and as a part of the software program in whole or part.  Users
  28  * may copy or modify Sun RPC without charge, but are not authorized
  29  * to license or distribute it to anyone else except as part of a product or
  30  * program developed by the user.
  31  *
  32  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  33  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  34  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  35  *
  36  * Sun RPC is provided with no support and without any obligation on the
  37  * part of Sun Microsystems, Inc. to assist in its use, correction,
  38  * modification or enhancement.
  39  *
  40  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  41  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  42  * OR ANY PART THEREOF.
  43  *
  44  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  45  * or profits or other special, indirect and consequential damages, even if
  46  * Sun has been advised of the possibility of such damages.
  47  *
  48  * Sun Microsystems, Inc.
  49  * 2550 Garcia Avenue
  50  * Mountain View, California  94043
  51  */
  52
  53 #if defined(LIBC_SCCS) && !defined(lint)
  54 /*static char *sccsid = "from: @(#)clnt_raw.c 1.22 87/08/11 Copyr 1984 Sun Micro";*/
  55 /*static char *sccsid = "from: @(#)clnt_raw.c   2.2 88/08/01 4.0 RPCSRC";*/
  56 static char *rcsid = "$Id: clnt_raw.c,v 1.2 1999/10/14 21:56:53 wsanchez Exp $";
  57 #endif
  58
  59 /*
  60  * clnt_raw.c
  61  *
  62  * Copyright (C) 1984, Sun Microsystems, Inc.
  63  *
  64  * Memory based rpc for simple testing and timing.
  65  * Interface to create an rpc client and server in the same process.
  66  * This lets us similate rpc and get round trip overhead, without
  67  * any interference from the kernal.
  68  */
  69
  70 #include <rpc/rpc.h>
  71
  72 #define MCALL_MSG_SIZE 24
  73
  74 /*
  75  * This is the "network" we will be moving stuff over.
  76  */
  77 static struct clntraw_private {
  78         CLIENT  client_object;
  79         XDR     xdr_stream;
  80         char    _raw_buf[UDPMSGSIZE];
  81         char    mashl_callmsg[MCALL_MSG_SIZE];
  82         u_int   mcnt;
  83 } *clntraw_private;
  84
  85 static enum clnt_stat   clntraw_call();
  86 static void             clntraw_abort();
  87 static void             clntraw_geterr();
  88 static bool_t           clntraw_freeres();
  89 static bool_t           clntraw_control();
  90 static void             clntraw_destroy();
  91
  92 static struct clnt_ops client_ops = {
  93         clntraw_call,
  94         clntraw_abort,
  95         clntraw_geterr,
  96         clntraw_freeres,
  97         clntraw_destroy,
  98         clntraw_control
  99 };
 100
 101 void    svc_getreq();
 102
 103 /*
 104  * Create a client handle for memory based rpc.
 105  */
 106 CLIENT *
 107 clntraw_create(prog, vers)
 108         u_long prog;
 109         u_long vers;
 110 {
 111         register struct clntraw_private *clp = clntraw_private;
 112         struct rpc_msg call_msg;
 113         XDR *xdrs = &clp->xdr_stream;
 114         CLIENT  *client = &clp->client_object;
 115
 116         if (clp == 0) {
 117                 clp = (struct clntraw_private *)calloc(1, sizeof (*clp));
 118                 if (clp == 0)
 119                         return (0);
 120                 clntraw_private = clp;
 121         }
 122         /*
 123          * pre-serialize the staic part of the call msg and stash it away
 124          */
 125         call_msg.rm_direction = CALL;
 126         call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
 127         call_msg.rm_call.cb_prog = prog;
 128         call_msg.rm_call.cb_vers = vers;
 129         xdrmem_create(xdrs, clp->mashl_callmsg, MCALL_MSG_SIZE, XDR_ENCODE);
 130         if (! xdr_callhdr(xdrs, &call_msg)) {
 131                 perror("clnt_raw.c - Fatal header serialization error.");
 132         }
 133         clp->mcnt = XDR_GETPOS(xdrs);
 134         XDR_DESTROY(xdrs);
 135
 136         /*
 137          * Set xdrmem for client/server shared buffer
 138          */
 139         xdrmem_create(xdrs, clp->_raw_buf, UDPMSGSIZE, XDR_FREE);
 140
 141         /*
 142          * create client handle
 143          */
 144         client->cl_ops = &client_ops;
 145         client->cl_auth = authnone_create();
 146         return (client);
 147 }
 148
 149 static enum clnt_stat
 150 clntraw_call(h, proc, xargs, argsp, xresults, resultsp, timeout)
 151         CLIENT *h;
 152         u_long proc;
 153         xdrproc_t xargs;
 154         caddr_t argsp;
 155         xdrproc_t xresults;
 156         caddr_t resultsp;
 157         struct timeval timeout;
 158 {
 159         register struct clntraw_private *clp = clntraw_private;
 160         register XDR *xdrs = &clp->xdr_stream;
 161         struct rpc_msg msg;
 162         enum clnt_stat status;
 163         struct rpc_err error;
 164
 165         if (clp == 0)
 166                 return (RPC_FAILED);
 167 call_again:
 168         /*
 169          * send request
 170          */
 171         xdrs->x_op = XDR_ENCODE;
 172         XDR_SETPOS(xdrs, 0);
 173         ((struct rpc_msg *)clp->mashl_callmsg)->rm_xid ++ ;
 174         if ((! XDR_PUTBYTES(xdrs, clp->mashl_callmsg, clp->mcnt)) ||
 175             (! XDR_PUTLONG(xdrs, (long *)&proc)) ||
 176             (! AUTH_MARSHALL(h->cl_auth, xdrs)) ||
 177             (! (*xargs)(xdrs, argsp))) {
 178                 return (RPC_CANTENCODEARGS);
 179         }
 180         (void)XDR_GETPOS(xdrs);  /* called just to cause overhead */
 181
 182         /*
 183          * We have to call server input routine here because this is
 184          * all going on in one process. Yuk.
 185          */
 186         svc_getreq(1);
 187
 188         /*
 189          * get results
 190          */
 191         xdrs->x_op = XDR_DECODE;
 192         XDR_SETPOS(xdrs, 0);
 193         msg.acpted_rply.ar_verf = _null_auth;
 194         msg.acpted_rply.ar_results.where = resultsp;
 195         msg.acpted_rply.ar_results.proc = xresults;
 196         if (! xdr_replymsg(xdrs, &msg))
 197                 return (RPC_CANTDECODERES);
 198         _seterr_reply(&msg, &error);
 199         status = error.re_status;
 200
 201         if (status == RPC_SUCCESS) {
 202                 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
 203                         status = RPC_AUTHERROR;
 204                 }
 205         }  /* end successful completion */
 206         else {
 207                 if (AUTH_REFRESH(h->cl_auth))
 208                         goto call_again;
 209         }  /* end of unsuccessful completion */
 210
 211         if (status == RPC_SUCCESS) {
 212                 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
 213                         status = RPC_AUTHERROR;
 214                 }
 215                 if (msg.acpted_rply.ar_verf.oa_base != NULL) {
 216                         xdrs->x_op = XDR_FREE;
 217                         (void)xdr_opaque_auth(xdrs, &(msg.acpted_rply.ar_verf));
 218                 }
 219         }
 220
 221         return (status);
 222 }
 223
 224 static void
 225 clntraw_geterr()
 226 {
 227 }
 228
 229
 230 static bool_t
 231 clntraw_freeres(cl, xdr_res, res_ptr)
 232         CLIENT *cl;
 233         xdrproc_t xdr_res;
 234         caddr_t res_ptr;
 235 {
 236         register struct clntraw_private *clp = clntraw_private;
 237         register XDR *xdrs = &clp->xdr_stream;
 238         bool_t rval;
 239
 240         if (clp == 0)
 241         {
 242                 rval = (bool_t) RPC_FAILED;
 243                 return (rval);
 244         }
 245         xdrs->x_op = XDR_FREE;
 246         return ((*xdr_res)(xdrs, res_ptr));
 247 }
 248
 249 static void
 250 clntraw_abort()
 251 {
 252 }
 253
 254 static bool_t
 255 clntraw_control()
 256 {
 257         return (FALSE);
 258 }
 259
 260 static void
 261 clntraw_destroy()
 262 {
 263 }