NetBSD/lib/libc/rpc/svc_raw.c

265 lines
6.6 KiB
C

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