1 /* $OpenBSD: svc_raw.c,v 1.13 2022/02/14 03:38:59 guenther Exp $ */
2
3 /*
4 * Copyright (c) 2010, Oracle America, Inc.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met:
9 *
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials
15 * provided with the distribution.
16 * * Neither the name of the "Oracle America, Inc." nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
27 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 /*
35 * svc_raw.c, This a toy for simple testing and timing.
36 * Interface to create an rpc client and server in the same UNIX process.
37 * This lets us similate rpc and get rpc (round trip) overhead, without
38 * any interference from the kernel.
39 */
40
41 #include <stdlib.h>
42 #include <rpc/rpc.h>
43
44
45 /*
46 * This is the "network" that we will be moving data over
47 */
48 static struct svcraw_private {
49 char _raw_buf[UDPMSGSIZE];
50 SVCXPRT server;
51 XDR xdr_stream;
52 char verf_body[MAX_AUTH_BYTES];
53 } *svcraw_private;
54
55 static bool_t svcraw_recv(SVCXPRT *xprt, struct rpc_msg *msg);
56 static enum xprt_stat svcraw_stat(SVCXPRT *xprt);
57 static bool_t svcraw_getargs(SVCXPRT *xprt, xdrproc_t xdr_args,
58 caddr_t args_ptr);
59 static bool_t svcraw_reply(SVCXPRT *xprt, struct rpc_msg *msg);
60 static bool_t svcraw_freeargs(SVCXPRT *xprt, xdrproc_t xdr_args,
61 caddr_t args_ptr);
62 static void svcraw_destroy(SVCXPRT *xprt);
63
64 static const struct xp_ops server_ops = {
65 svcraw_recv,
66 svcraw_stat,
67 svcraw_getargs,
68 svcraw_reply,
69 svcraw_freeargs,
70 svcraw_destroy
71 };
72
73 SVCXPRT *
svcraw_create(void)74 svcraw_create(void)
75 {
76 struct svcraw_private *srp = svcraw_private;
77
78 if (srp == NULL) {
79 srp = calloc(1, sizeof (*srp));
80 if (srp == NULL)
81 return (NULL);
82 }
83 srp->server.xp_sock = 0;
84 srp->server.xp_port = 0;
85 srp->server.xp_ops = &server_ops;
86 srp->server.xp_verf.oa_base = srp->verf_body;
87 xdrmem_create(&srp->xdr_stream, srp->_raw_buf, UDPMSGSIZE, XDR_FREE);
88 return (&srp->server);
89 }
90
91 static enum xprt_stat
svcraw_stat(SVCXPRT * xprt)92 svcraw_stat(SVCXPRT *xprt)
93 {
94
95 return (XPRT_IDLE);
96 }
97
98 static bool_t
svcraw_recv(SVCXPRT * xprt,struct rpc_msg * msg)99 svcraw_recv(SVCXPRT *xprt, struct rpc_msg *msg)
100 {
101 struct svcraw_private *srp = svcraw_private;
102 XDR *xdrs;
103
104 if (srp == NULL)
105 return (0);
106 xdrs = &srp->xdr_stream;
107 xdrs->x_op = XDR_DECODE;
108 XDR_SETPOS(xdrs, 0);
109 if (! xdr_callmsg(xdrs, msg))
110 return (FALSE);
111 return (TRUE);
112 }
113
114 static bool_t
svcraw_reply(SVCXPRT * xprt,struct rpc_msg * msg)115 svcraw_reply(SVCXPRT *xprt, struct rpc_msg *msg)
116 {
117 struct svcraw_private *srp = svcraw_private;
118 XDR *xdrs;
119
120 if (srp == NULL)
121 return (FALSE);
122 xdrs = &srp->xdr_stream;
123 xdrs->x_op = XDR_ENCODE;
124 XDR_SETPOS(xdrs, 0);
125 if (! xdr_replymsg(xdrs, msg))
126 return (FALSE);
127 (void)XDR_GETPOS(xdrs); /* called just for overhead */
128 return (TRUE);
129 }
130
131 static bool_t
svcraw_getargs(SVCXPRT * xprt,xdrproc_t xdr_args,caddr_t args_ptr)132 svcraw_getargs(SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr)
133 {
134 struct svcraw_private *srp = svcraw_private;
135
136 if (srp == NULL)
137 return (FALSE);
138 return ((*xdr_args)(&srp->xdr_stream, args_ptr));
139 }
140
141 static bool_t
svcraw_freeargs(SVCXPRT * xprt,xdrproc_t xdr_args,caddr_t args_ptr)142 svcraw_freeargs(SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr)
143 {
144 struct svcraw_private *srp = svcraw_private;
145 XDR *xdrs;
146
147 if (srp == NULL)
148 return (FALSE);
149 xdrs = &srp->xdr_stream;
150 xdrs->x_op = XDR_FREE;
151 return ((*xdr_args)(xdrs, args_ptr));
152 }
153
154 static void
svcraw_destroy(SVCXPRT * xprt)155 svcraw_destroy(SVCXPRT *xprt)
156 {
157 }
158