clnt_raw.c revision 8870 
1/*
2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part.  Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
8 *
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12 *
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
16 *
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
20 *
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
24 *
25 * Sun Microsystems, Inc.
26 * 2550 Garcia Avenue
27 * Mountain View, California  94043
28 */
29
30#if defined(LIBC_SCCS) && !defined(lint)
31/*static char *sccsid = "from: @(#)clnt_raw.c 1.22 87/08/11 Copyr 1984 Sun Micro";*/
32/*static char *sccsid = "from: @(#)clnt_raw.c	2.2 88/08/01 4.0 RPCSRC";*/
33static char *rcsid = "$Id: clnt_raw.c,v 1.1 1994/08/07 18:35:45 wollman Exp $";
34#endif
35
36/*
37 * clnt_raw.c
38 *
39 * Copyright (C) 1984, Sun Microsystems, Inc.
40 *
41 * Memory based rpc for simple testing and timing.
42 * Interface to create an rpc client and server in the same process.
43 * This lets us similate rpc and get round trip overhead, without
44 * any interference from the kernal.
45 */
46
47#include <rpc/rpc.h>
48
49#define MCALL_MSG_SIZE 24
50
51/*
52 * This is the "network" we will be moving stuff over.
53 */
54static struct clntraw_private {
55	CLIENT	client_object;
56	XDR	xdr_stream;
57	char	_raw_buf[UDPMSGSIZE];
58	char	mashl_callmsg[MCALL_MSG_SIZE];
59	u_int	mcnt;
60} *clntraw_private;
61
62static enum clnt_stat	clntraw_call();
63static void		clntraw_abort();
64static void		clntraw_geterr();
65static bool_t		clntraw_freeres();
66static bool_t		clntraw_control();
67static void		clntraw_destroy();
68
69static struct clnt_ops client_ops = {
70	clntraw_call,
71	clntraw_abort,
72	clntraw_geterr,
73	clntraw_freeres,
74	clntraw_destroy,
75	clntraw_control
76};
77
78void	svc_getreq();
79
80/*
81 * Create a client handle for memory based rpc.
82 */
83CLIENT *
84clntraw_create(prog, vers)
85	u_long prog;
86	u_long vers;
87{
88	register struct clntraw_private *clp = clntraw_private;
89	struct rpc_msg call_msg;
90	XDR *xdrs = &clp->xdr_stream;
91	CLIENT	*client = &clp->client_object;
92
93	if (clp == 0) {
94		clp = (struct clntraw_private *)calloc(1, sizeof (*clp));
95		if (clp == 0)
96			return (0);
97		clntraw_private = clp;
98	}
99	/*
100	 * pre-serialize the staic part of the call msg and stash it away
101	 */
102	call_msg.rm_direction = CALL;
103	call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
104	call_msg.rm_call.cb_prog = prog;
105	call_msg.rm_call.cb_vers = vers;
106	xdrmem_create(xdrs, clp->mashl_callmsg, MCALL_MSG_SIZE, XDR_ENCODE);
107	if (! xdr_callhdr(xdrs, &call_msg)) {
108		perror("clnt_raw.c - Fatal header serialization error.");
109	}
110	clp->mcnt = XDR_GETPOS(xdrs);
111	XDR_DESTROY(xdrs);
112
113	/*
114	 * Set xdrmem for client/server shared buffer
115	 */
116	xdrmem_create(xdrs, clp->_raw_buf, UDPMSGSIZE, XDR_FREE);
117
118	/*
119	 * create client handle
120	 */
121	client->cl_ops = &client_ops;
122	client->cl_auth = authnone_create();
123	return (client);
124}
125
126static enum clnt_stat
127clntraw_call(h, proc, xargs, argsp, xresults, resultsp, timeout)
128	CLIENT *h;
129	u_long proc;
130	xdrproc_t xargs;
131	caddr_t argsp;
132	xdrproc_t xresults;
133	caddr_t resultsp;
134	struct timeval timeout;
135{
136	register struct clntraw_private *clp = clntraw_private;
137	register XDR *xdrs = &clp->xdr_stream;
138	struct rpc_msg msg;
139	enum clnt_stat status;
140	struct rpc_err error;
141
142	if (clp == 0)
143		return (RPC_FAILED);
144call_again:
145	/*
146	 * send request
147	 */
148	xdrs->x_op = XDR_ENCODE;
149	XDR_SETPOS(xdrs, 0);
150	((struct rpc_msg *)clp->mashl_callmsg)->rm_xid ++ ;
151	if ((! XDR_PUTBYTES(xdrs, clp->mashl_callmsg, clp->mcnt)) ||
152	    (! XDR_PUTLONG(xdrs, (long *)&proc)) ||
153	    (! AUTH_MARSHALL(h->cl_auth, xdrs)) ||
154	    (! (*xargs)(xdrs, argsp))) {
155		return (RPC_CANTENCODEARGS);
156	}
157	(void)XDR_GETPOS(xdrs);  /* called just to cause overhead */
158
159	/*
160	 * We have to call server input routine here because this is
161	 * all going on in one process. Yuk.
162	 */
163	svc_getreq(1);
164
165	/*
166	 * get results
167	 */
168	xdrs->x_op = XDR_DECODE;
169	XDR_SETPOS(xdrs, 0);
170	msg.acpted_rply.ar_verf = _null_auth;
171	msg.acpted_rply.ar_results.where = resultsp;
172	msg.acpted_rply.ar_results.proc = xresults;
173	if (! xdr_replymsg(xdrs, &msg))
174		return (RPC_CANTDECODERES);
175	_seterr_reply(&msg, &error);
176	status = error.re_status;
177
178	if (status == RPC_SUCCESS) {
179		if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
180			status = RPC_AUTHERROR;
181		}
182	}  /* end successful completion */
183	else {
184		if (AUTH_REFRESH(h->cl_auth))
185			goto call_again;
186	}  /* end of unsuccessful completion */
187
188	if (status == RPC_SUCCESS) {
189		if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
190			status = RPC_AUTHERROR;
191		}
192		if (msg.acpted_rply.ar_verf.oa_base != NULL) {
193			xdrs->x_op = XDR_FREE;
194			(void)xdr_opaque_auth(xdrs, &(msg.acpted_rply.ar_verf));
195		}
196	}
197
198	return (status);
199}
200
201static void
202clntraw_geterr()
203{
204}
205
206
207static bool_t
208clntraw_freeres(cl, xdr_res, res_ptr)
209	CLIENT *cl;
210	xdrproc_t xdr_res;
211	caddr_t res_ptr;
212{
213	register struct clntraw_private *clp = clntraw_private;
214	register XDR *xdrs = &clp->xdr_stream;
215	bool_t rval;
216
217	if (clp == 0)
218	{
219		rval = (bool_t) RPC_FAILED;
220		return (rval);
221	}
222	xdrs->x_op = XDR_FREE;
223	return ((*xdr_res)(xdrs, res_ptr));
224}
225
226static void
227clntraw_abort()
228{
229}
230
231static bool_t
232clntraw_control()
233{
234	return (FALSE);
235}
236
237static void
238clntraw_destroy()
239{
240}
241