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/* $NetBSD: linux_time.c,v 1.14 2006/05/14 03:40:54 christos Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Emmanuel Dreyfus.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#if 0
__KERNEL_RCSID(0, "$NetBSD: linux_time.c,v 1.14 2006/05/14 03:40:54 christos Exp $");
#endif
#include "opt_compat.h"
#include <sys/param.h>
#include <sys/ucred.h>
#include <sys/mount.h>
#include <sys/signal.h>
#include <sys/stdint.h>
#include <sys/syscallsubr.h>
#include <sys/sysproto.h>
#include <sys/time.h>
#include <sys/systm.h>
#include <sys/proc.h>
#ifdef COMPAT_LINUX32
#include <machine/../linux32/linux.h>
#include <machine/../linux32/linux32_proto.h>
#else
#include <machine/../linux/linux.h>
#include <machine/../linux/linux_proto.h>
#endif
static void native_to_linux_timespec(struct l_timespec *,
struct timespec *);
static int linux_to_native_timespec(struct timespec *,
struct l_timespec *);
static int linux_to_native_clockid(clockid_t *, clockid_t);
static void
native_to_linux_timespec(struct l_timespec *ltp, struct timespec *ntp)
{
ltp->tv_sec = ntp->tv_sec;
ltp->tv_nsec = ntp->tv_nsec;
}
static int
linux_to_native_timespec(struct timespec *ntp, struct l_timespec *ltp)
{
if (ltp->tv_sec < 0 || ltp->tv_nsec > (l_long)999999999L)
return (EINVAL);
ntp->tv_sec = ltp->tv_sec;
ntp->tv_nsec = ltp->tv_nsec;
return (0);
}
static int
linux_to_native_clockid(clockid_t *n, clockid_t l)
{
switch (l) {
case LINUX_CLOCK_REALTIME:
*n = CLOCK_REALTIME;
break;
case LINUX_CLOCK_MONOTONIC:
*n = CLOCK_MONOTONIC;
break;
case LINUX_CLOCK_PROCESS_CPUTIME_ID:
case LINUX_CLOCK_THREAD_CPUTIME_ID:
case LINUX_CLOCK_REALTIME_HR:
case LINUX_CLOCK_MONOTONIC_HR:
default:
return (EINVAL);
break;
}
return (0);
}
int
linux_clock_gettime(struct thread *td, struct linux_clock_gettime_args *args)
{
struct l_timespec lts;
int error;
clockid_t nwhich = 0; /* XXX: GCC */
struct timespec tp;
error = linux_to_native_clockid(&nwhich, args->which);
if (error != 0)
return (error);
error = kern_clock_gettime(td, nwhich, &tp);
if (error != 0)
return (error);
native_to_linux_timespec(<s, &tp);
return (copyout(<s, args->tp, sizeof lts));
}
int
linux_clock_settime(struct thread *td, struct linux_clock_settime_args *args)
{
struct timespec ts;
struct l_timespec lts;
int error;
clockid_t nwhich = 0; /* XXX: GCC */
error = linux_to_native_clockid(&nwhich, args->which);
if (error != 0)
return (error);
error = copyin(args->tp, <s, sizeof lts);
if (error != 0)
return (error);
error = linux_to_native_timespec(&ts, <s);
if (error != 0)
return (error);
return (kern_clock_settime(td, nwhich, &ts));
}
int
linux_clock_getres(struct thread *td, struct linux_clock_getres_args *args)
{
struct timespec ts;
struct l_timespec lts;
int error;
clockid_t nwhich = 0; /* XXX: GCC */
if (args->tp == NULL)
return (0);
error = linux_to_native_clockid(&nwhich, args->which);
if (error != 0)
return (error);
error = kern_clock_getres(td, nwhich, &ts);
if (error != 0)
return (error);
native_to_linux_timespec(<s, &ts);
return (copyout(<s, args->tp, sizeof lts));
}
int
linux_nanosleep(struct thread *td, struct linux_nanosleep_args *args)
{
struct timespec *rmtp;
struct l_timespec lrqts, lrmts;
struct timespec rqts, rmts;
int error;
error = copyin(args->rqtp, &lrqts, sizeof lrqts);
if (error != 0)
return (error);
if (args->rmtp != NULL)
rmtp = &rmts;
else
rmtp = NULL;
error = linux_to_native_timespec(&rqts, &lrqts);
if (error != 0)
return (error);
error = kern_nanosleep(td, &rqts, rmtp);
if (error != 0)
return (error);
if (args->rmtp != NULL) {
native_to_linux_timespec(&lrmts, rmtp);
error = copyout(&lrmts, args->rmtp, sizeof(lrmts));
if (error != 0)
return (error);
}
return (0);
}
int
linux_clock_nanosleep(struct thread *td, struct linux_clock_nanosleep_args *args)
{
struct timespec *rmtp;
struct l_timespec lrqts, lrmts;
struct timespec rqts, rmts;
int error;
if (args->flags != 0)
return (EINVAL); /* XXX deal with TIMER_ABSTIME */
if (args->which != LINUX_CLOCK_REALTIME)
return (EINVAL);
error = copyin(args->rqtp, &lrqts, sizeof lrqts);
if (error != 0)
return (error);
if (args->rmtp != NULL)
rmtp = &rmts;
else
rmtp = NULL;
error = linux_to_native_timespec(&rqts, &lrqts);
if (error != 0)
return (error);
error = kern_nanosleep(td, &rqts, rmtp);
if (error != 0)
return (error);
if (args->rmtp != NULL) {
native_to_linux_timespec(&lrmts, rmtp);
error = copyout(&lrmts, args->rmtp, sizeof lrmts );
if (error != 0)
return (error);
}
return (0);
}
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