svc_raw.c revision 1.17.6.1 1 /* $NetBSD: svc_raw.c,v 1.17.6.1 2005/11/21 20:15:20 tron Exp $ */
2
3 /*
4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
5 * unrestricted use provided that this legend is included on all tape
6 * media and as a part of the software program in whole or part. Users
7 * may copy or modify Sun RPC without charge, but are not authorized
8 * to license or distribute it to anyone else except as part of a product or
9 * program developed by the user.
10 *
11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
14 *
15 * Sun RPC is provided with no support and without any obligation on the
16 * part of Sun Microsystems, Inc. to assist in its use, correction,
17 * modification or enhancement.
18 *
19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
21 * OR ANY PART THEREOF.
22 *
23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
24 * or profits or other special, indirect and consequential damages, even if
25 * Sun has been advised of the possibility of such damages.
26 *
27 * Sun Microsystems, Inc.
28 * 2550 Garcia Avenue
29 * Mountain View, California 94043
30 */
31 /*
32 * Copyright (c) 1986-1991 by Sun Microsystems Inc.
33 */
34
35 /* #ident "@(#)svc_raw.c 1.16 94/04/24 SMI" */
36
37 #include <sys/cdefs.h>
38 #if defined(LIBC_SCCS) && !defined(lint)
39 #if 0
40 static char sccsid[] = "@(#)svc_raw.c 1.25 89/01/31 Copyr 1984 Sun Micro";
41 #else
42 __RCSID("$NetBSD: svc_raw.c,v 1.17.6.1 2005/11/21 20:15:20 tron Exp $");
43 #endif
44 #endif
45
46 /*
47 * svc_raw.c, This a toy for simple testing and timing.
48 * Interface to create an rpc client and server in the same UNIX process.
49 * This lets us similate rpc and get rpc (round trip) overhead, without
50 * any interference from the kernal.
51 *
52 */
53
54 #include "namespace.h"
55 #include "reentrant.h"
56 #include <rpc/rpc.h>
57 #include <sys/types.h>
58 #include <rpc/raw.h>
59 #include <assert.h>
60 #include <stdlib.h>
61
62 #ifdef __weak_alias
63 __weak_alias(svc_raw_create,_svc_raw_create)
64 #endif
65
66 #ifndef UDPMSGSIZE
67 #define UDPMSGSIZE 8800
68 #endif
69
70 /*
71 * This is the "network" that we will be moving data over
72 */
73 static struct svc_raw_private {
74 char *raw_buf; /* should be shared with the cl handle */
75 SVCXPRT server;
76 XDR xdr_stream;
77 char verf_body[MAX_AUTH_BYTES];
78 } *svc_raw_private;
79
80 #ifdef _REENTRANT
81 extern mutex_t svcraw_lock;
82 #endif
83
84 static enum xprt_stat svc_raw_stat __P((SVCXPRT *));
85 static bool_t svc_raw_recv __P((SVCXPRT *, struct rpc_msg *));
86 static bool_t svc_raw_reply __P((SVCXPRT *, struct rpc_msg *));
87 static bool_t svc_raw_getargs __P((SVCXPRT *, xdrproc_t, caddr_t));
88 static bool_t svc_raw_freeargs __P((SVCXPRT *, xdrproc_t, caddr_t));
89 static void svc_raw_destroy __P((SVCXPRT *));
90 static void svc_raw_ops __P((SVCXPRT *));
91 static bool_t svc_raw_control __P((SVCXPRT *, const u_int, void *));
92
93 char *__rpc_rawcombuf = NULL;
94
95 SVCXPRT *
96 svc_raw_create()
97 {
98 struct svc_raw_private *srp;
99 /* VARIABLES PROTECTED BY svcraw_lock: svc_raw_private, srp */
100
101 mutex_lock(&svcraw_lock);
102 srp = svc_raw_private;
103 if (srp == NULL) {
104 srp = (struct svc_raw_private *)calloc(1, sizeof (*srp));
105 if (srp == NULL) {
106 mutex_unlock(&svcraw_lock);
107 return (NULL);
108 }
109 if (__rpc_rawcombuf == NULL)
110 __rpc_rawcombuf = malloc(UDPMSGSIZE);
111 srp->raw_buf = __rpc_rawcombuf; /* Share it with the client */
112 svc_raw_private = srp;
113 }
114 srp->server.xp_fd = FD_SETSIZE;
115 srp->server.xp_port = 0;
116 srp->server.xp_p3 = NULL;
117 svc_raw_ops(&srp->server);
118 srp->server.xp_verf.oa_base = srp->verf_body;
119 xdrmem_create(&srp->xdr_stream, srp->raw_buf, UDPMSGSIZE, XDR_DECODE);
120 xprt_register(&srp->server);
121 mutex_unlock(&svcraw_lock);
122 return (&srp->server);
123 }
124
125 /*ARGSUSED*/
126 static enum xprt_stat
127 svc_raw_stat(xprt)
128 SVCXPRT *xprt; /* args needed to satisfy ANSI-C typechecking */
129 {
130 return (XPRT_IDLE);
131 }
132
133 /*ARGSUSED*/
134 static bool_t
135 svc_raw_recv(xprt, msg)
136 SVCXPRT *xprt;
137 struct rpc_msg *msg;
138 {
139 struct svc_raw_private *srp;
140 XDR *xdrs;
141
142 mutex_lock(&svcraw_lock);
143 srp = svc_raw_private;
144 if (srp == NULL) {
145 mutex_unlock(&svcraw_lock);
146 return (FALSE);
147 }
148 mutex_unlock(&svcraw_lock);
149
150 xdrs = &srp->xdr_stream;
151 xdrs->x_op = XDR_DECODE;
152 (void) XDR_SETPOS(xdrs, 0);
153 if (! xdr_callmsg(xdrs, msg)) {
154 return (FALSE);
155 }
156 return (TRUE);
157 }
158
159 /*ARGSUSED*/
160 static bool_t
161 svc_raw_reply(xprt, msg)
162 SVCXPRT *xprt;
163 struct rpc_msg *msg;
164 {
165 struct svc_raw_private *srp;
166 XDR *xdrs;
167
168 mutex_lock(&svcraw_lock);
169 srp = svc_raw_private;
170 if (srp == NULL) {
171 mutex_unlock(&svcraw_lock);
172 return (FALSE);
173 }
174 mutex_unlock(&svcraw_lock);
175
176 xdrs = &srp->xdr_stream;
177 xdrs->x_op = XDR_ENCODE;
178 (void) XDR_SETPOS(xdrs, 0);
179 if (! xdr_replymsg(xdrs, msg)) {
180 return (FALSE);
181 }
182 (void) XDR_GETPOS(xdrs); /* called just for overhead */
183 return (TRUE);
184 }
185
186 /*ARGSUSED*/
187 static bool_t
188 svc_raw_getargs(xprt, xdr_args, args_ptr)
189 SVCXPRT *xprt;
190 xdrproc_t xdr_args;
191 caddr_t args_ptr;
192 {
193 struct svc_raw_private *srp;
194
195 mutex_lock(&svcraw_lock);
196 srp = svc_raw_private;
197 if (srp == NULL) {
198 mutex_unlock(&svcraw_lock);
199 return (FALSE);
200 }
201 mutex_unlock(&svcraw_lock);
202 return (*xdr_args)(&srp->xdr_stream, args_ptr);
203 }
204
205 /*ARGSUSED*/
206 static bool_t
207 svc_raw_freeargs(xprt, xdr_args, args_ptr)
208 SVCXPRT *xprt;
209 xdrproc_t xdr_args;
210 caddr_t args_ptr;
211 {
212 struct svc_raw_private *srp;
213 XDR *xdrs;
214
215 mutex_lock(&svcraw_lock);
216 srp = svc_raw_private;
217 if (srp == NULL) {
218 mutex_unlock(&svcraw_lock);
219 return (FALSE);
220 }
221 mutex_unlock(&svcraw_lock);
222
223 xdrs = &srp->xdr_stream;
224 xdrs->x_op = XDR_FREE;
225 return (*xdr_args)(xdrs, args_ptr);
226 }
227
228 /*ARGSUSED*/
229 static void
230 svc_raw_destroy(xprt)
231 SVCXPRT *xprt;
232 {
233 }
234
235 /*ARGSUSED*/
236 static bool_t
237 svc_raw_control(xprt, rq, in)
238 SVCXPRT *xprt;
239 const u_int rq;
240 void *in;
241 {
242 return (FALSE);
243 }
244
245 static void
246 svc_raw_ops(xprt)
247 SVCXPRT *xprt;
248 {
249 static struct xp_ops ops;
250 static struct xp_ops2 ops2;
251 #ifdef _REENTRANT
252 extern mutex_t ops_lock;
253 #endif
254
255 _DIAGASSERT(xprt != NULL);
256
257 /* VARIABLES PROTECTED BY ops_lock: ops */
258
259 mutex_lock(&ops_lock);
260 if (ops.xp_recv == NULL) {
261 ops.xp_recv = svc_raw_recv;
262 ops.xp_stat = svc_raw_stat;
263 ops.xp_getargs = svc_raw_getargs;
264 ops.xp_reply = svc_raw_reply;
265 ops.xp_freeargs = svc_raw_freeargs;
266 ops.xp_destroy = svc_raw_destroy;
267 ops2.xp_control = svc_raw_control;
268 }
269 xprt->xp_ops = &ops;
270 xprt->xp_ops2 = &ops2;
271 mutex_unlock(&ops_lock);
272 }
273