1 /* $NetBSD: svc_raw.c,v 1.14 2000/07/06 03:10:35 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2009, Sun Microsystems, Inc.
5 * All rights reserved.
6 *
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.
17 *
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.
29 */
30 /*
31 * Copyright (c) 1986-1991 by Sun Microsystems Inc.
32 */
33
34 /* #ident "@(#)svc_raw.c 1.16 94/04/24 SMI" */
35
36 #if defined(LIBC_SCCS) && !defined(lint)
37 static char sccsid[] = "@(#)svc_raw.c 1.25 89/01/31 Copyr 1984 Sun Micro";
38 #endif
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
41
42 /*
43 * svc_raw.c, This a toy for simple testing and timing.
44 * Interface to create an rpc client and server in the same UNIX process.
45 * This lets us similate rpc and get rpc (round trip) overhead, without
46 * any interference from the kernel.
47 *
48 */
49
50 #include "namespace.h"
51 #include "reentrant.h"
52 #include <rpc/rpc.h>
53 #include <sys/types.h>
54 #include <rpc/raw.h>
55 #include <stdlib.h>
56 #include "un-namespace.h"
57 #include "mt_misc.h"
58
59 #ifndef UDPMSGSIZE
60 #define UDPMSGSIZE 8800
61 #endif
62
63 /*
64 * This is the "network" that we will be moving data over
65 */
66 static struct svc_raw_private {
67 char *raw_buf; /* should be shared with the cl handle */
68 SVCXPRT *server;
69 XDR xdr_stream;
70 char verf_body[MAX_AUTH_BYTES];
71 } *svc_raw_private;
72
73 static enum xprt_stat svc_raw_stat(SVCXPRT *);
74 static bool_t svc_raw_recv(SVCXPRT *, struct rpc_msg *);
75 static bool_t svc_raw_reply(SVCXPRT *, struct rpc_msg *);
76 static bool_t svc_raw_getargs(SVCXPRT *, xdrproc_t, void *);
77 static bool_t svc_raw_freeargs(SVCXPRT *, xdrproc_t, void *);
78 static void svc_raw_destroy(SVCXPRT *);
79 static void svc_raw_ops(SVCXPRT *);
80 static bool_t svc_raw_control(SVCXPRT *, const u_int, void *);
81
82 char *__rpc_rawcombuf = NULL;
83
84 SVCXPRT *
svc_raw_create()85 svc_raw_create()
86 {
87 struct svc_raw_private *srp;
88 /* VARIABLES PROTECTED BY svcraw_lock: svc_raw_private, srp */
89
90 mutex_lock(&svcraw_lock);
91 srp = svc_raw_private;
92 if (srp == NULL) {
93 srp = (struct svc_raw_private *)calloc(1, sizeof (*srp));
94 if (srp == NULL) {
95 mutex_unlock(&svcraw_lock);
96 return (NULL);
97 }
98 if (__rpc_rawcombuf == NULL) {
99 __rpc_rawcombuf = calloc(UDPMSGSIZE, sizeof (char));
100 if (__rpc_rawcombuf == NULL) {
101 free(srp);
102 mutex_unlock(&svcraw_lock);
103 return (NULL);
104 }
105 }
106 srp->raw_buf = __rpc_rawcombuf; /* Share it with the client */
107 srp->server = svc_xprt_alloc();
108 if (srp->server == NULL) {
109 free(__rpc_rawcombuf);
110 free(srp);
111 mutex_unlock(&svcraw_lock);
112 return (NULL);
113 }
114 svc_raw_private = srp;
115 }
116 srp->server->xp_fd = FD_SETSIZE;
117 srp->server->xp_port = 0;
118 svc_raw_ops(srp->server);
119 srp->server->xp_verf.oa_base = srp->verf_body;
120 xdrmem_create(&srp->xdr_stream, srp->raw_buf, UDPMSGSIZE, XDR_DECODE);
121 xprt_register(srp->server);
122 mutex_unlock(&svcraw_lock);
123 return (srp->server);
124 }
125
126 /*ARGSUSED*/
127 static enum xprt_stat
svc_raw_stat(xprt)128 svc_raw_stat(xprt)
129 SVCXPRT *xprt; /* args needed to satisfy ANSI-C typechecking */
130 {
131 return (XPRT_IDLE);
132 }
133
134 /*ARGSUSED*/
135 static bool_t
svc_raw_recv(xprt,msg)136 svc_raw_recv(xprt, msg)
137 SVCXPRT *xprt;
138 struct rpc_msg *msg;
139 {
140 struct svc_raw_private *srp;
141 XDR *xdrs;
142
143 mutex_lock(&svcraw_lock);
144 srp = svc_raw_private;
145 if (srp == NULL) {
146 mutex_unlock(&svcraw_lock);
147 return (FALSE);
148 }
149 mutex_unlock(&svcraw_lock);
150
151 xdrs = &srp->xdr_stream;
152 xdrs->x_op = XDR_DECODE;
153 (void) XDR_SETPOS(xdrs, 0);
154 if (! xdr_callmsg(xdrs, msg)) {
155 return (FALSE);
156 }
157 return (TRUE);
158 }
159
160 /*ARGSUSED*/
161 static bool_t
svc_raw_reply(xprt,msg)162 svc_raw_reply(xprt, msg)
163 SVCXPRT *xprt;
164 struct rpc_msg *msg;
165 {
166 struct svc_raw_private *srp;
167 XDR *xdrs;
168 bool_t stat;
169 xdrproc_t xdr_proc;
170 caddr_t xdr_where;
171
172 mutex_lock(&svcraw_lock);
173 srp = svc_raw_private;
174 if (srp == NULL) {
175 mutex_unlock(&svcraw_lock);
176 return (FALSE);
177 }
178 mutex_unlock(&svcraw_lock);
179
180 xdrs = &srp->xdr_stream;
181 xdrs->x_op = XDR_ENCODE;
182 (void) XDR_SETPOS(xdrs, 0);
183 if (msg->rm_reply.rp_stat == MSG_ACCEPTED &&
184 msg->rm_reply.rp_acpt.ar_stat == SUCCESS) {
185 xdr_proc = msg->acpted_rply.ar_results.proc;
186 xdr_where = msg->acpted_rply.ar_results.where;
187 msg->acpted_rply.ar_results.proc = (xdrproc_t) xdr_void;
188 msg->acpted_rply.ar_results.where = NULL;
189
190 stat = xdr_replymsg(xdrs, msg) &&
191 SVCAUTH_WRAP(&SVC_AUTH(xprt), xdrs, xdr_proc, xdr_where);
192 } else {
193 stat = xdr_replymsg(xdrs, msg);
194 }
195 if (!stat) {
196 return (FALSE);
197 }
198 (void) XDR_GETPOS(xdrs); /* called just for overhead */
199 return (TRUE);
200 }
201
202 /*ARGSUSED*/
203 static bool_t
svc_raw_getargs(xprt,xdr_args,args_ptr)204 svc_raw_getargs(xprt, xdr_args, args_ptr)
205 SVCXPRT *xprt;
206 xdrproc_t xdr_args;
207 void *args_ptr;
208 {
209 struct svc_raw_private *srp;
210
211 mutex_lock(&svcraw_lock);
212 srp = svc_raw_private;
213 if (srp == NULL) {
214 mutex_unlock(&svcraw_lock);
215 return (FALSE);
216 }
217 mutex_unlock(&svcraw_lock);
218
219 return (SVCAUTH_UNWRAP(&SVC_AUTH(xprt), &srp->xdr_stream,
220 xdr_args, args_ptr));
221 }
222
223 /*ARGSUSED*/
224 static bool_t
svc_raw_freeargs(xprt,xdr_args,args_ptr)225 svc_raw_freeargs(xprt, xdr_args, args_ptr)
226 SVCXPRT *xprt;
227 xdrproc_t xdr_args;
228 void *args_ptr;
229 {
230 struct svc_raw_private *srp;
231 XDR *xdrs;
232
233 mutex_lock(&svcraw_lock);
234 srp = svc_raw_private;
235 if (srp == NULL) {
236 mutex_unlock(&svcraw_lock);
237 return (FALSE);
238 }
239 mutex_unlock(&svcraw_lock);
240
241 xdrs = &srp->xdr_stream;
242 xdrs->x_op = XDR_FREE;
243 return (*xdr_args)(xdrs, args_ptr);
244 }
245
246 /*ARGSUSED*/
247 static void
svc_raw_destroy(xprt)248 svc_raw_destroy(xprt)
249 SVCXPRT *xprt;
250 {
251 }
252
253 /*ARGSUSED*/
254 static bool_t
svc_raw_control(xprt,rq,in)255 svc_raw_control(xprt, rq, in)
256 SVCXPRT *xprt;
257 const u_int rq;
258 void *in;
259 {
260 return (FALSE);
261 }
262
263 static void
svc_raw_ops(xprt)264 svc_raw_ops(xprt)
265 SVCXPRT *xprt;
266 {
267 static struct xp_ops ops;
268 static struct xp_ops2 ops2;
269
270 /* VARIABLES PROTECTED BY ops_lock: ops */
271
272 mutex_lock(&ops_lock);
273 if (ops.xp_recv == NULL) {
274 ops.xp_recv = svc_raw_recv;
275 ops.xp_stat = svc_raw_stat;
276 ops.xp_getargs = svc_raw_getargs;
277 ops.xp_reply = svc_raw_reply;
278 ops.xp_freeargs = svc_raw_freeargs;
279 ops.xp_destroy = svc_raw_destroy;
280 ops2.xp_control = svc_raw_control;
281 }
282 xprt->xp_ops = &ops;
283 xprt->xp_ops2 = &ops2;
284 mutex_unlock(&ops_lock);
285 }
286