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