265 lines
6.6 KiB
C
265 lines
6.6 KiB
C
/* $NetBSD: svc_raw.c,v 1.25 2015/11/06 19:32:08 christos Exp $ */
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/*
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* Copyright (c) 2010, Oracle America, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* * Neither the name of the "Oracle America, Inc." nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1986-1991 by Sun Microsystems Inc.
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*/
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/* #ident "@(#)svc_raw.c 1.16 94/04/24 SMI" */
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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static char sccsid[] = "@(#)svc_raw.c 1.25 89/01/31 Copyr 1984 Sun Micro";
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#else
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__RCSID("$NetBSD: svc_raw.c,v 1.25 2015/11/06 19:32:08 christos Exp $");
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#endif
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#endif
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/*
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* svc_raw.c, This a toy for simple testing and timing.
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* Interface to create an rpc client and server in the same UNIX process.
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* This lets us similate rpc and get rpc (round trip) overhead, without
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* any interference from the kernel.
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*
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*/
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#include "namespace.h"
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#include "reentrant.h"
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#include <rpc/rpc.h>
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#include <sys/types.h>
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#include <rpc/raw.h>
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#include <assert.h>
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#include <stdlib.h>
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#ifdef __weak_alias
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__weak_alias(svc_raw_create,_svc_raw_create)
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#endif
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#ifndef UDPMSGSIZE
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#define UDPMSGSIZE 8800
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#endif
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/*
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* This is the "network" that we will be moving data over
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*/
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static struct svc_raw_private {
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char *raw_buf; /* should be shared with the cl handle */
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SVCXPRT server;
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XDR xdr_stream;
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char verf_body[MAX_AUTH_BYTES];
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} *svc_raw_private;
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#ifdef _REENTRANT
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extern mutex_t svcraw_lock;
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#endif
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static enum xprt_stat svc_raw_stat(SVCXPRT *);
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static bool_t svc_raw_recv(SVCXPRT *, struct rpc_msg *);
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static bool_t svc_raw_reply(SVCXPRT *, struct rpc_msg *);
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static bool_t svc_raw_getargs(SVCXPRT *, xdrproc_t, caddr_t);
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static bool_t svc_raw_freeargs(SVCXPRT *, xdrproc_t, caddr_t);
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static void svc_raw_destroy(SVCXPRT *);
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static void svc_raw_ops(SVCXPRT *);
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static bool_t svc_raw_control(SVCXPRT *, const u_int, void *);
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char *__rpc_rawcombuf = NULL;
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SVCXPRT *
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svc_raw_create(void)
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{
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struct svc_raw_private *srp;
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/* VARIABLES PROTECTED BY svcraw_lock: svc_raw_private, srp */
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mutex_lock(&svcraw_lock);
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srp = svc_raw_private;
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if (srp == NULL) {
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srp = calloc(1, sizeof(*srp));
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if (srp == NULL)
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goto out;
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if (__rpc_rawcombuf == NULL)
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__rpc_rawcombuf = malloc(UDPMSGSIZE);
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if (__rpc_rawcombuf == NULL)
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goto out;
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srp->raw_buf = __rpc_rawcombuf; /* Share it with the client */
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svc_raw_private = srp;
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}
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srp->server.xp_fd = -1;
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srp->server.xp_port = 0;
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srp->server.xp_p3 = NULL;
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svc_raw_ops(&srp->server);
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srp->server.xp_verf.oa_base = srp->verf_body;
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xdrmem_create(&srp->xdr_stream, srp->raw_buf, UDPMSGSIZE, XDR_DECODE);
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if (!xprt_register(&srp->server))
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goto out;
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mutex_unlock(&svcraw_lock);
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return (&srp->server);
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out:
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if (srp != NULL)
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free(srp);
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mutex_unlock(&svcraw_lock);
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return (NULL);
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}
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/*ARGSUSED*/
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static enum xprt_stat
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svc_raw_stat(SVCXPRT *xprt) /* args needed to satisfy ANSI-C typechecking */
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{
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return (XPRT_IDLE);
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}
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/*ARGSUSED*/
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static bool_t
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svc_raw_recv(SVCXPRT *xprt, struct rpc_msg *msg)
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{
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struct svc_raw_private *srp;
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XDR *xdrs;
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mutex_lock(&svcraw_lock);
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srp = svc_raw_private;
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if (srp == NULL) {
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mutex_unlock(&svcraw_lock);
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return (FALSE);
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}
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mutex_unlock(&svcraw_lock);
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xdrs = &srp->xdr_stream;
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xdrs->x_op = XDR_DECODE;
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(void) XDR_SETPOS(xdrs, 0);
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if (! xdr_callmsg(xdrs, msg)) {
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return (FALSE);
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}
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return (TRUE);
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}
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/*ARGSUSED*/
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static bool_t
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svc_raw_reply(SVCXPRT *xprt, struct rpc_msg *msg)
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{
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struct svc_raw_private *srp;
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XDR *xdrs;
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mutex_lock(&svcraw_lock);
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srp = svc_raw_private;
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if (srp == NULL) {
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mutex_unlock(&svcraw_lock);
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return (FALSE);
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}
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mutex_unlock(&svcraw_lock);
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xdrs = &srp->xdr_stream;
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xdrs->x_op = XDR_ENCODE;
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(void) XDR_SETPOS(xdrs, 0);
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if (! xdr_replymsg(xdrs, msg)) {
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return (FALSE);
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}
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(void) XDR_GETPOS(xdrs); /* called just for overhead */
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return (TRUE);
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}
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/*ARGSUSED*/
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static bool_t
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svc_raw_getargs(SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr)
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{
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struct svc_raw_private *srp;
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mutex_lock(&svcraw_lock);
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srp = svc_raw_private;
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if (srp == NULL) {
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mutex_unlock(&svcraw_lock);
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return (FALSE);
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}
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mutex_unlock(&svcraw_lock);
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return (*xdr_args)(&srp->xdr_stream, args_ptr);
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}
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/*ARGSUSED*/
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static bool_t
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svc_raw_freeargs(SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr)
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{
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struct svc_raw_private *srp;
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XDR *xdrs;
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mutex_lock(&svcraw_lock);
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srp = svc_raw_private;
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if (srp == NULL) {
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mutex_unlock(&svcraw_lock);
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return (FALSE);
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}
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mutex_unlock(&svcraw_lock);
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xdrs = &srp->xdr_stream;
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xdrs->x_op = XDR_FREE;
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return (*xdr_args)(xdrs, args_ptr);
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}
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/*ARGSUSED*/
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static void
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svc_raw_destroy(SVCXPRT *xprt)
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{
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}
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/*ARGSUSED*/
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static bool_t
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svc_raw_control(SVCXPRT *xprt, const u_int rq, void *in)
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{
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return (FALSE);
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}
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static void
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svc_raw_ops(SVCXPRT *xprt)
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{
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static struct xp_ops ops;
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static struct xp_ops2 ops2;
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#ifdef _REENTRANT
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extern mutex_t ops_lock;
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#endif
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_DIAGASSERT(xprt != NULL);
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/* VARIABLES PROTECTED BY ops_lock: ops */
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mutex_lock(&ops_lock);
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if (ops.xp_recv == NULL) {
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ops.xp_recv = svc_raw_recv;
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ops.xp_stat = svc_raw_stat;
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ops.xp_getargs = svc_raw_getargs;
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ops.xp_reply = svc_raw_reply;
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ops.xp_freeargs = svc_raw_freeargs;
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ops.xp_destroy = svc_raw_destroy;
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ops2.xp_control = svc_raw_control;
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}
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xprt->xp_ops = &ops;
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xprt->xp_ops2 = &ops2;
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mutex_unlock(&ops_lock);
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}
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