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 #include <shlib-compat.h>
40
41 /*
42 * This is the "network" that we will be moving data over
43 */
44 struct svcraw_private_s
45 {
46 char _raw_buf[UDPMSGSIZE];
47 SVCXPRT server;
48 XDR xdr_stream;
49 char verf_body[MAX_AUTH_BYTES];
50 };
51 #define svcraw_private RPC_THREAD_VARIABLE(svcraw_private_s)
52
53 static bool_t svcraw_recv (SVCXPRT *, struct rpc_msg *);
54 static enum xprt_stat svcraw_stat (SVCXPRT *);
55 static bool_t svcraw_getargs (SVCXPRT *, xdrproc_t, caddr_t);
56 static bool_t svcraw_reply (SVCXPRT *, struct rpc_msg *);
57 static bool_t svcraw_freeargs (SVCXPRT *, xdrproc_t, caddr_t);
58 static void svcraw_destroy (SVCXPRT *);
59
60 static const struct xp_ops server_ops =
61 {
62 svcraw_recv,
63 svcraw_stat,
64 svcraw_getargs,
65 svcraw_reply,
66 svcraw_freeargs,
67 svcraw_destroy
68 };
69
70 SVCXPRT *
71 svcraw_create (void)
72 {
73 struct svcraw_private_s *srp = svcraw_private;
74
75 if (srp == 0)
76 {
77 srp = (struct svcraw_private_s *) calloc (1, sizeof (*srp));
78 if (srp == 0)
79 return NULL;
80 }
81 srp->server.xp_sock = 0;
82 srp->server.xp_port = 0;
83 srp->server.xp_ops = (struct xp_ops *) &server_ops;
84 srp->server.xp_verf.oa_base = srp->verf_body;
85 xdrmem_create (&srp->xdr_stream, srp->_raw_buf, UDPMSGSIZE, XDR_FREE);
86 return &srp->server;
87 }
88 libc_hidden_nolink_sunrpc (svcraw_create, GLIBC_2_0)
89
90 static enum xprt_stat
91 svcraw_stat (SVCXPRT *xprt)
92 {
93 return XPRT_IDLE;
94 }
95
96 static bool_t
97 svcraw_recv (SVCXPRT *xprt, struct rpc_msg *msg)
98 {
99 struct svcraw_private_s *srp = svcraw_private;
100 XDR *xdrs;
101
102 if (srp == 0)
103 return FALSE;
104 xdrs = &srp->xdr_stream;
105 xdrs->x_op = XDR_DECODE;
106 XDR_SETPOS (xdrs, 0);
107 if (!xdr_callmsg (xdrs, msg))
108 return FALSE;
109 return TRUE;
110 }
111
112 static bool_t
113 svcraw_reply (SVCXPRT *xprt, struct rpc_msg *msg)
114 {
115 struct svcraw_private_s *srp = svcraw_private;
116 XDR *xdrs;
117
118 if (srp == 0)
119 return FALSE;
120 xdrs = &srp->xdr_stream;
121 xdrs->x_op = XDR_ENCODE;
122 XDR_SETPOS (xdrs, 0);
123 if (!xdr_replymsg (xdrs, msg))
124 return FALSE;
125 (void) XDR_GETPOS (xdrs); /* called just for overhead */
126 return TRUE;
127 }
128
129 static bool_t
130 svcraw_getargs (SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr)
131 {
132 struct svcraw_private_s *srp = svcraw_private;
133
134 if (srp == 0)
135 return FALSE;
136 return (*xdr_args) (&srp->xdr_stream, args_ptr);
137 }
138
139 static bool_t
140 svcraw_freeargs (SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr)
141 {
142 struct svcraw_private_s *srp = svcraw_private;
143 XDR *xdrs;
144
145 if (srp == 0)
146 return FALSE;
147 xdrs = &srp->xdr_stream;
148 xdrs->x_op = XDR_FREE;
149 return (*xdr_args) (xdrs, args_ptr);
150 }
151
152 static void
153 svcraw_destroy (SVCXPRT *xprt)
154 {
155 }