1/*
2 * svc_raw.c, This a toy for simple testing and timing.
3 * Interface to create an rpc client and server in the same UNIX process.
4 * This lets us simulate rpc and get rpc (round trip) overhead, without
5 * any interference from the kernel.
6 *
7 * Copyright (c) 2010, Oracle America, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are
11 * met:
12 *
13 * * Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * * Redistributions in binary form must reproduce the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer in the documentation and/or other materials
18 * provided with the distribution.
19 * * Neither the name of the "Oracle America, Inc." nor the names of its
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
26 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
27 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
28 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
30 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
32 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
33 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 */
36
37#include <rpc/rpc.h>
38#include <rpc/svc.h>
39
40/*
41 * This is the "network" that we will be moving data over
42 */
43struct svcraw_private_s
44 {
45 char _raw_buf[UDPMSGSIZE];
46 SVCXPRT server;
47 XDR xdr_stream;
48 char verf_body[MAX_AUTH_BYTES];
49 };
50#ifdef _RPC_THREAD_SAFE_
51#define svcraw_private RPC_THREAD_VARIABLE(svcraw_private_s)
52#else
53static struct svcraw_private_s *svcraw_private;
54#endif
55
56static bool_t svcraw_recv (SVCXPRT *, struct rpc_msg *);
57static enum xprt_stat svcraw_stat (SVCXPRT *);
58static bool_t svcraw_getargs (SVCXPRT *, xdrproc_t, caddr_t);
59static bool_t svcraw_reply (SVCXPRT *, struct rpc_msg *);
60static bool_t svcraw_freeargs (SVCXPRT *, xdrproc_t, caddr_t);
61static void svcraw_destroy (SVCXPRT *);
62
63static const struct xp_ops server_ops =
64{
65 svcraw_recv,
66 svcraw_stat,
67 svcraw_getargs,
68 svcraw_reply,
69 svcraw_freeargs,
70 svcraw_destroy
71};
72
73SVCXPRT *
74svcraw_create (void)
75{
76 struct svcraw_private_s *srp = svcraw_private;
77
78 if (srp == 0)
79 {
80 srp = (struct svcraw_private_s *) calloc (1, sizeof (*srp));
81 if (srp == 0)
82 return NULL;
83 }
84 srp->server.xp_sock = 0;
85 srp->server.xp_port = 0;
86 srp->server.xp_ops = (struct xp_ops *) &server_ops;
87 srp->server.xp_verf.oa_base = srp->verf_body;
88 xdrmem_create (&srp->xdr_stream, srp->_raw_buf, UDPMSGSIZE, XDR_FREE);
89 return &srp->server;
90}
91libc_hidden_nolink_sunrpc (svcraw_create, GLIBC_2_0)
92
93static enum xprt_stat
94svcraw_stat (SVCXPRT *xprt)
95{
96 return XPRT_IDLE;
97}
98
99static bool_t
100svcraw_recv (SVCXPRT *xprt, struct rpc_msg *msg)
101{
102 struct svcraw_private_s *srp = svcraw_private;
103 XDR *xdrs;
104
105 if (srp == 0)
106 return FALSE;
107 xdrs = &srp->xdr_stream;
108 xdrs->x_op = XDR_DECODE;
109 XDR_SETPOS (xdrs, 0);
110 if (!xdr_callmsg (xdrs, msg))
111 return FALSE;
112 return TRUE;
113}
114
115static bool_t
116svcraw_reply (SVCXPRT *xprt, struct rpc_msg *msg)
117{
118 struct svcraw_private_s *srp = svcraw_private;
119 XDR *xdrs;
120
121 if (srp == 0)
122 return FALSE;
123 xdrs = &srp->xdr_stream;
124 xdrs->x_op = XDR_ENCODE;
125 XDR_SETPOS (xdrs, 0);
126 if (!xdr_replymsg (xdrs, msg))
127 return FALSE;
128 (void) XDR_GETPOS (xdrs); /* called just for overhead */
129 return TRUE;
130}
131
132static bool_t
133svcraw_getargs (SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr)
134{
135 struct svcraw_private_s *srp = svcraw_private;
136
137 if (srp == 0)
138 return FALSE;
139 return (*xdr_args) (&srp->xdr_stream, args_ptr);
140}
141
142static bool_t
143svcraw_freeargs (SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr)
144{
145 struct svcraw_private_s *srp = svcraw_private;
146 XDR *xdrs;
147
148 if (srp == 0)
149 return FALSE;
150 xdrs = &srp->xdr_stream;
151 xdrs->x_op = XDR_FREE;
152 return (*xdr_args) (xdrs, args_ptr);
153}
154
155static void
156svcraw_destroy (SVCXPRT *xprt)
157{
158}
159