1 /* $OpenBSD: svc_raw.c,v 1.12 2015/11/01 03:45:29 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 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 * 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 92 svcraw_stat(SVCXPRT *xprt) 93 { 94 95 return (XPRT_IDLE); 96 } 97 98 static bool_t 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 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 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 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 155 svcraw_destroy(SVCXPRT *xprt) 156 { 157 } 158