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(rpcprog_t prog, rpcvers_t vers)
92 struct clntraw_private *clp;
93 struct rpc_msg call_msg;
97 mutex_lock(&clntraw_lock);
98 if ((clp = clntraw_private) == NULL) {
99 clp = (struct clntraw_private *)calloc(1, sizeof (*clp));
101 mutex_unlock(&clntraw_lock);
104 if (__rpc_rawcombuf == NULL)
106 (char *)calloc(UDPMSGSIZE, sizeof (char));
107 clp->_raw_buf = __rpc_rawcombuf;
108 clntraw_private = clp;
110 xdrs = &clp->xdr_stream;
111 client = &clp->client_object;
114 * pre-serialize the static part of the call msg and stash it away
116 call_msg.rm_direction = CALL;
117 call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
118 /* XXX: prog and vers have been long historically :-( */
119 call_msg.rm_call.cb_prog = (u_int32_t)prog;
120 call_msg.rm_call.cb_vers = (u_int32_t)vers;
121 xdrmem_create(xdrs, clp->u.mashl_callmsg, MCALL_MSG_SIZE, XDR_ENCODE);
122 if (! xdr_callhdr(xdrs, &call_msg))
123 warnx("clntraw_create - Fatal header serialization error.");
124 clp->mcnt = XDR_GETPOS(xdrs);
128 * Set xdrmem for client/server shared buffer
130 xdrmem_create(xdrs, clp->_raw_buf, UDPMSGSIZE, XDR_FREE);
133 * create client handle
135 client->cl_ops = clnt_raw_ops();
136 client->cl_auth = authnone_create();
137 mutex_unlock(&clntraw_lock);
142 static enum clnt_stat
143 clnt_raw_call(CLIENT *h, rpcproc_t proc, xdrproc_t xargs, void *argsp,
144 xdrproc_t xresults, void *resultsp, struct timeval timeout)
146 struct clntraw_private *clp = clntraw_private;
147 XDR *xdrs = &clp->xdr_stream;
149 enum clnt_stat status;
150 struct rpc_err error;
154 mutex_lock(&clntraw_lock);
156 mutex_unlock(&clntraw_lock);
159 mutex_unlock(&clntraw_lock);
165 xdrs->x_op = XDR_ENCODE;
167 clp->u.mashl_rpcmsg.rm_xid ++ ;
168 if ((! XDR_PUTBYTES(xdrs, clp->u.mashl_callmsg, clp->mcnt)) ||
169 (! XDR_PUTINT32(xdrs, &proc)) ||
170 (! AUTH_MARSHALL(h->cl_auth, xdrs)) ||
171 (! (*xargs)(xdrs, argsp))) {
172 return (RPC_CANTENCODEARGS);
174 (void)XDR_GETPOS(xdrs); /* called just to cause overhead */
177 * We have to call server input routine here because this is
178 * all going on in one process. Yuk.
180 svc_getreq_common(FD_SETSIZE);
185 xdrs->x_op = XDR_DECODE;
187 msg.acpted_rply.ar_verf = _null_auth;
188 msg.acpted_rply.ar_results.where = resultsp;
189 msg.acpted_rply.ar_results.proc = xresults;
190 if (! xdr_replymsg(xdrs, &msg)) {
192 * It's possible for xdr_replymsg() to fail partway
193 * through its attempt to decode the result from the
194 * server. If this happens, it will leave the reply
195 * structure partially populated with dynamically
196 * allocated memory. (This can happen if someone uses
197 * clntudp_bufcreate() to create a CLIENT handle and
198 * specifies a receive buffer size that is too small.)
199 * This memory must be free()ed to avoid a leak.
202 xdrs->x_op = XDR_FREE;
203 xdr_replymsg(xdrs, &msg);
205 return (RPC_CANTDECODERES);
207 _seterr_reply(&msg, &error);
208 status = error.re_status;
210 if (status == RPC_SUCCESS) {
211 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
212 status = RPC_AUTHERROR;
214 } /* end successful completion */
216 if (AUTH_REFRESH(h->cl_auth, &msg))
218 } /* end of unsuccessful completion */
220 if (status == RPC_SUCCESS) {
221 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
222 status = RPC_AUTHERROR;
224 if (msg.acpted_rply.ar_verf.oa_base != NULL) {
225 xdrs->x_op = XDR_FREE;
226 (void)xdr_opaque_auth(xdrs, &(msg.acpted_rply.ar_verf));
235 clnt_raw_geterr(CLIENT *cl, struct rpc_err *err)
242 clnt_raw_freeres(CLIENT *cl, xdrproc_t xdr_res, void *res_ptr)
244 struct clntraw_private *clp = clntraw_private;
245 XDR *xdrs = &clp->xdr_stream;
248 mutex_lock(&clntraw_lock);
250 rval = (bool_t) RPC_FAILED;
251 mutex_unlock(&clntraw_lock);
254 mutex_unlock(&clntraw_lock);
255 xdrs->x_op = XDR_FREE;
256 return ((*xdr_res)(xdrs, res_ptr));
261 clnt_raw_abort(CLIENT *cl)
267 clnt_raw_control(CLIENT *cl, u_int ui, void *str)
274 clnt_raw_destroy(CLIENT *cl)
278 static struct clnt_ops *
281 static struct clnt_ops ops;
283 /* VARIABLES PROTECTED BY ops_lock: ops */
285 mutex_lock(&ops_lock);
286 if (ops.cl_call == NULL) {
287 ops.cl_call = clnt_raw_call;
288 ops.cl_abort = clnt_raw_abort;
289 ops.cl_geterr = clnt_raw_geterr;
290 ops.cl_freeres = clnt_raw_freeres;
291 ops.cl_destroy = clnt_raw_destroy;
292 ops.cl_control = clnt_raw_control;
294 mutex_unlock(&ops_lock);