1 /* $NetBSD: clnt_raw.c,v 1.20 2000/12/10 04:12:03 christos Exp $ */
4 * Copyright (c) 2009, Sun Microsystems, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 * - Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 * - Neither the name of Sun Microsystems, Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived
16 * from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
31 #if defined(LIBC_SCCS) && !defined(lint)
32 static char *sccsid2 = "@(#)clnt_raw.c 1.22 87/08/11 Copyr 1984 Sun Micro";
33 static char *sccsid = "@(#)clnt_raw.c 2.2 88/08/01 4.0 RPCSRC";
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
41 * Copyright (C) 1984, Sun Microsystems, Inc.
43 * Memory based rpc for simple testing and timing.
44 * Interface to create an rpc client and server in the same process.
45 * This lets us similate rpc and get round trip overhead, without
46 * any interference from the kernel.
49 #include "namespace.h"
50 #include "reentrant.h"
58 #include "un-namespace.h"
61 #define MCALL_MSG_SIZE 24
64 * This is the "network" we will be moving stuff over.
66 static struct clntraw_private {
71 struct rpc_msg mashl_rpcmsg;
72 char mashl_callmsg[MCALL_MSG_SIZE];
77 static enum clnt_stat clnt_raw_call(CLIENT *, rpcproc_t, xdrproc_t, void *,
78 xdrproc_t, void *, struct timeval);
79 static void clnt_raw_geterr(CLIENT *, struct rpc_err *);
80 static bool_t clnt_raw_freeres(CLIENT *, xdrproc_t, void *);
81 static void clnt_raw_abort(CLIENT *);
82 static bool_t clnt_raw_control(CLIENT *, u_int, void *);
83 static void clnt_raw_destroy(CLIENT *);
84 static struct clnt_ops *clnt_raw_ops(void);
87 * Create a client handle for memory based rpc.
90 clnt_raw_create(prog, vers)
94 struct clntraw_private *clp;
95 struct rpc_msg call_msg;
99 mutex_lock(&clntraw_lock);
100 if ((clp = clntraw_private) == NULL) {
101 clp = (struct clntraw_private *)calloc(1, sizeof (*clp));
103 mutex_unlock(&clntraw_lock);
106 if (__rpc_rawcombuf == NULL)
108 (char *)calloc(UDPMSGSIZE, sizeof (char));
109 clp->_raw_buf = __rpc_rawcombuf;
110 clntraw_private = clp;
112 xdrs = &clp->xdr_stream;
113 client = &clp->client_object;
116 * pre-serialize the static part of the call msg and stash it away
118 call_msg.rm_direction = CALL;
119 call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
120 /* XXX: prog and vers have been long historically :-( */
121 call_msg.rm_call.cb_prog = (u_int32_t)prog;
122 call_msg.rm_call.cb_vers = (u_int32_t)vers;
123 xdrmem_create(xdrs, clp->u.mashl_callmsg, MCALL_MSG_SIZE, XDR_ENCODE);
124 if (! xdr_callhdr(xdrs, &call_msg))
125 warnx("clntraw_create - Fatal header serialization error.");
126 clp->mcnt = XDR_GETPOS(xdrs);
130 * Set xdrmem for client/server shared buffer
132 xdrmem_create(xdrs, clp->_raw_buf, UDPMSGSIZE, XDR_FREE);
135 * create client handle
137 client->cl_ops = clnt_raw_ops();
138 client->cl_auth = authnone_create();
139 mutex_unlock(&clntraw_lock);
144 static enum clnt_stat
145 clnt_raw_call(h, proc, xargs, argsp, xresults, resultsp, timeout)
152 struct timeval timeout;
154 struct clntraw_private *clp = clntraw_private;
155 XDR *xdrs = &clp->xdr_stream;
157 enum clnt_stat status;
158 struct rpc_err error;
162 mutex_lock(&clntraw_lock);
164 mutex_unlock(&clntraw_lock);
167 mutex_unlock(&clntraw_lock);
173 xdrs->x_op = XDR_ENCODE;
175 clp->u.mashl_rpcmsg.rm_xid ++ ;
176 if ((! XDR_PUTBYTES(xdrs, clp->u.mashl_callmsg, clp->mcnt)) ||
177 (! XDR_PUTINT32(xdrs, &proc)) ||
178 (! AUTH_MARSHALL(h->cl_auth, xdrs)) ||
179 (! (*xargs)(xdrs, argsp))) {
180 return (RPC_CANTENCODEARGS);
182 (void)XDR_GETPOS(xdrs); /* called just to cause overhead */
185 * We have to call server input routine here because this is
186 * all going on in one process. Yuk.
188 svc_getreq_common(FD_SETSIZE);
193 xdrs->x_op = XDR_DECODE;
195 msg.acpted_rply.ar_verf = _null_auth;
196 msg.acpted_rply.ar_results.where = resultsp;
197 msg.acpted_rply.ar_results.proc = xresults;
198 if (! xdr_replymsg(xdrs, &msg)) {
200 * It's possible for xdr_replymsg() to fail partway
201 * through its attempt to decode the result from the
202 * server. If this happens, it will leave the reply
203 * structure partially populated with dynamically
204 * allocated memory. (This can happen if someone uses
205 * clntudp_bufcreate() to create a CLIENT handle and
206 * specifies a receive buffer size that is too small.)
207 * This memory must be free()ed to avoid a leak.
210 xdrs->x_op = XDR_FREE;
211 xdr_replymsg(xdrs, &msg);
213 return (RPC_CANTDECODERES);
215 _seterr_reply(&msg, &error);
216 status = error.re_status;
218 if (status == RPC_SUCCESS) {
219 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
220 status = RPC_AUTHERROR;
222 } /* end successful completion */
224 if (AUTH_REFRESH(h->cl_auth, &msg))
226 } /* end of unsuccessful completion */
228 if (status == RPC_SUCCESS) {
229 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
230 status = RPC_AUTHERROR;
232 if (msg.acpted_rply.ar_verf.oa_base != NULL) {
233 xdrs->x_op = XDR_FREE;
234 (void)xdr_opaque_auth(xdrs, &(msg.acpted_rply.ar_verf));
243 clnt_raw_geterr(cl, err)
252 clnt_raw_freeres(cl, xdr_res, res_ptr)
257 struct clntraw_private *clp = clntraw_private;
258 XDR *xdrs = &clp->xdr_stream;
261 mutex_lock(&clntraw_lock);
263 rval = (bool_t) RPC_FAILED;
264 mutex_unlock(&clntraw_lock);
267 mutex_unlock(&clntraw_lock);
268 xdrs->x_op = XDR_FREE;
269 return ((*xdr_res)(xdrs, res_ptr));
281 clnt_raw_control(cl, ui, str)
296 static struct clnt_ops *
299 static struct clnt_ops ops;
301 /* VARIABLES PROTECTED BY ops_lock: ops */
303 mutex_lock(&ops_lock);
304 if (ops.cl_call == NULL) {
305 ops.cl_call = clnt_raw_call;
306 ops.cl_abort = clnt_raw_abort;
307 ops.cl_geterr = clnt_raw_geterr;
308 ops.cl_freeres = clnt_raw_freeres;
309 ops.cl_destroy = clnt_raw_destroy;
310 ops.cl_control = clnt_raw_control;
312 mutex_unlock(&ops_lock);