386 lines
10 KiB
C
386 lines
10 KiB
C
/* $NetBSD: linux32_time.c,v 1.29 2009/07/21 18:50:43 njoly Exp $ */
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/*-
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* Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
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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
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* are met:
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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Emmanuel Dreyfus
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* 4. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: linux32_time.c,v 1.29 2009/07/21 18:50:43 njoly Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/fstypes.h>
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#include <sys/signal.h>
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#include <sys/dirent.h>
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#include <sys/kauth.h>
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#include <sys/kernel.h>
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#include <sys/fcntl.h>
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#include <sys/namei.h>
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#include <sys/select.h>
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#include <sys/proc.h>
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#include <sys/resourcevar.h>
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#include <sys/ucred.h>
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#include <sys/swap.h>
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#include <sys/vfs_syscalls.h>
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#include <sys/timetc.h>
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#include <machine/types.h>
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#include <sys/syscallargs.h>
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#include <compat/netbsd32/netbsd32.h>
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#include <compat/netbsd32/netbsd32_conv.h>
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#include <compat/netbsd32/netbsd32_syscallargs.h>
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#include <compat/linux/common/linux_types.h>
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#include <compat/linux/common/linux_signal.h>
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#include <compat/linux/common/linux_machdep.h>
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#include <compat/linux/common/linux_misc.h>
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#include <compat/linux/common/linux_oldolduname.h>
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#include <compat/linux/common/linux_sched.h>
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#include <compat/linux/common/linux_ipc.h>
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#include <compat/linux/common/linux_sem.h>
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#include <compat/linux/linux_syscallargs.h>
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#include <compat/linux32/common/linux32_types.h>
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#include <compat/linux32/common/linux32_signal.h>
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#include <compat/linux32/common/linux32_machdep.h>
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#include <compat/linux32/common/linux32_sysctl.h>
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#include <compat/linux32/common/linux32_socketcall.h>
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#include <compat/linux32/linux32_syscallargs.h>
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extern struct timezone linux_sys_tz;
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static __inline void
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native_to_linux32_timespec(struct linux32_timespec *, struct timespec *);
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static __inline void
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linux32_to_native_timespec(struct timespec *, struct linux32_timespec *);
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int
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linux32_sys_gettimeofday(struct lwp *l, const struct linux32_sys_gettimeofday_args *uap, register_t *retval)
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{
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/* {
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syscallarg(netbsd32_timeval50p_t) tp;
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syscallarg(netbsd32_timezonep_t) tzp;
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} */
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struct timeval tv;
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struct netbsd32_timeval50 tv32;
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int error;
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if (SCARG_P32(uap, tp) != NULL) {
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microtime(&tv);
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netbsd32_from_timeval50(&tv, &tv32);
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if ((error = copyout(&tv32, SCARG_P32(uap, tp),
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sizeof(tv32))) != 0)
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return error;
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}
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/* timezone size does not change */
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if (SCARG_P32(uap, tzp) != NULL) {
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if ((error = copyout(&linux_sys_tz, SCARG_P32(uap, tzp),
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sizeof(linux_sys_tz))) != 0)
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return error;
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}
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return 0;
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}
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int
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linux32_sys_settimeofday(struct lwp *l, const struct linux32_sys_settimeofday_args *uap, register_t *retval)
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{
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/* {
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syscallarg(netbsd32_timeval50p_t) tp;
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syscallarg(netbsd32_timezonep_t) tzp;
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} */
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struct linux_sys_settimeofday_args ua;
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NETBSD32TOP_UAP(tp, struct timeval50);
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NETBSD32TOP_UAP(tzp, struct timezone);
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return linux_sys_settimeofday(l, &ua, retval);
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}
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int
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linux32_sys_time(struct lwp *l, const struct linux32_sys_time_args *uap, register_t *retval)
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{
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/* {
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syscallarg(linux32_timep_t) t;
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} */
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struct timeval atv;
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linux32_time_t tt;
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int error;
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microtime(&atv);
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tt = (linux32_time_t)atv.tv_sec;
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if (SCARG_P32(uap, t) && (error = copyout(&tt,
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SCARG_P32(uap, t), sizeof(tt))))
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return error;
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retval[0] = tt;
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return 0;
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}
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#define CONVTCK(r) (r.tv_sec * hz + r.tv_usec / (1000000 / hz))
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int
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linux32_sys_times(struct lwp *l, const struct linux32_sys_times_args *uap, register_t *retval)
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{
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/* {
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syscallarg(linux32_tmsp_t) tms;
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} */
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struct proc *p = l->l_proc;
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struct timeval t;
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int error;
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if (SCARG_P32(uap, tms)) {
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struct linux32_tms ltms32;
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struct rusage ru;
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mutex_enter(p->p_lock);
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calcru(p, &ru.ru_utime, &ru.ru_stime, NULL, NULL);
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ltms32.ltms32_utime = CONVTCK(ru.ru_utime);
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ltms32.ltms32_stime = CONVTCK(ru.ru_stime);
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ltms32.ltms32_cutime = CONVTCK(p->p_stats->p_cru.ru_utime);
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ltms32.ltms32_cstime = CONVTCK(p->p_stats->p_cru.ru_stime);
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mutex_exit(p->p_lock);
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error = copyout(<ms32, SCARG_P32(uap, tms), sizeof(ltms32));
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if (error)
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return error;
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}
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getmicrouptime(&t);
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retval[0] = ((linux32_clock_t)(CONVTCK(t)));
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return 0;
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}
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#undef CONVTCK
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int
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linux32_sys_stime(struct lwp *l, const struct linux32_sys_stime_args *uap, register_t *retval)
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{
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/* {
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syscallarg(linux32_timep_t) t;
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} */
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struct timespec ts;
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linux32_time_t tt32;
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int error;
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if ((error = copyin(SCARG_P32(uap, t), &tt32, sizeof tt32)) != 0)
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return error;
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ts.tv_sec = (long)tt32;
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ts.tv_nsec = 0;
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return settime(l->l_proc, &ts);
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}
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int
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linux32_sys_utime(struct lwp *l, const struct linux32_sys_utime_args *uap, register_t *retval)
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{
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/* {
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syscallarg(const netbsd32_charp) path;
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syscallarg(linux32_utimbufp_t) times;
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} */
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struct timeval tv[2], *tvp;
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struct linux32_utimbuf lut;
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int error;
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if (SCARG_P32(uap, times) != NULL) {
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if ((error = copyin(SCARG_P32(uap, times), &lut, sizeof lut)))
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return error;
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tv[0].tv_sec = (long)lut.l_actime;
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tv[0].tv_usec = 0;
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tv[1].tv_sec = (long)lut.l_modtime;
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tv[1].tv_usec = 0;
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tvp = tv;
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} else {
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tvp = NULL;
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}
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return do_sys_utimes(l, NULL, SCARG_P32(uap, path), FOLLOW,
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tvp, UIO_SYSSPACE);
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}
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static __inline void
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native_to_linux32_timespec(struct linux32_timespec *ltp, struct timespec *ntp)
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{
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ltp->tv_sec = ntp->tv_sec;
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ltp->tv_nsec = ntp->tv_nsec;
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}
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static __inline void
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linux32_to_native_timespec(struct timespec *ntp, struct linux32_timespec *ltp)
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{
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ntp->tv_sec = ltp->tv_sec;
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ntp->tv_nsec = ltp->tv_nsec;
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}
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int
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linux32_sys_nanosleep(struct lwp *l,
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const struct linux32_sys_nanosleep_args *uap, register_t *retval)
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{
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/* {
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syscallarg(linux32_timespecp_t) rqtp;
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syscallarg(linux32_timespecp_t) rmtp;
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} */
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struct timespec rqts, rmts;
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struct linux32_timespec lrqts, lrmts;
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int error, error1;
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error = copyin(SCARG_P32(uap, rqtp), &lrqts, sizeof(lrqts));
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if (error != 0)
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return error;
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linux32_to_native_timespec(&rqts, &lrqts);
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error = nanosleep1(l, &rqts, SCARG_P32(uap, rmtp) ? &rmts : NULL);
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if (SCARG_P32(uap, rmtp) == NULL || (error != 0 && error != EINTR))
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return error;
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native_to_linux32_timespec(&lrmts, &rmts);
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error1 = copyout(&lrmts, SCARG_P32(uap, rmtp), sizeof(lrmts));
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return error1 ? error1 : error;
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}
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int
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linux32_sys_clock_settime(struct lwp *l,
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const struct linux32_sys_clock_settime_args *uap, register_t *retval)
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{
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/* {
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syscallarg(clockid_t) which;
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syscallarg(linux32_timespecp_t) tp;
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} */
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int error;
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struct timespec ts;
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struct linux32_timespec lts;
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switch (SCARG(uap, which)) {
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case LINUX_CLOCK_REALTIME:
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break;
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default:
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return EINVAL;
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}
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if ((error = copyin(SCARG_P32(uap, tp), <s, sizeof lts)))
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return error;
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linux32_to_native_timespec(&ts, <s);
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return settime(l->l_proc, &ts);
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}
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int
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linux32_sys_clock_gettime(struct lwp *l,
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const struct linux32_sys_clock_gettime_args *uap, register_t *retval)
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{
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/* {
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syscallarg(clockid_t) which;
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syscallarg(linux32_timespecp_t) tp;
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} */
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struct timespec ts;
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struct linux32_timespec lts;
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switch (SCARG(uap, which)) {
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case LINUX_CLOCK_REALTIME:
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nanotime(&ts);
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break;
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case LINUX_CLOCK_MONOTONIC:
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nanouptime(&ts);
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break;
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default:
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return EINVAL;
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}
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native_to_linux32_timespec(<s, &ts);
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return copyout(<s, SCARG_P32(uap, tp), sizeof lts);
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}
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int
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linux32_sys_clock_getres(struct lwp *l,
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const struct linux32_sys_clock_getres_args *uap, register_t *retval)
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{
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/* {
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syscallarg(clockid_t) which;
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syscallarg(linux32_timespecp_t) tp;
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} */
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int error;
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clockid_t id;
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struct timespec ts;
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struct linux32_timespec lts;
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error = linux_to_native_clockid(&id, SCARG(uap, which));
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if (error != 0 || SCARG_P32(uap, tp) == NULL)
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return error;
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ts.tv_sec = 0;
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ts.tv_nsec = 1000000000 / tc_getfrequency();
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native_to_linux32_timespec(<s, &ts);
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return copyout(<s, SCARG_P32(uap, tp), sizeof lts);
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}
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int
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linux32_sys_clock_nanosleep(struct lwp *l,
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const struct linux32_sys_clock_nanosleep_args *uap, register_t *retval)
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{
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/* {
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syscallarg(clockid_t) which;
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syscallarg(int) flags;
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syscallarg(linux32_timespecp_t) rqtp;
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syscallarg(linux32_timespecp_t) rmtp;
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} */
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struct linux32_timespec lrqts, lrmts;
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struct timespec rqts, rmts;
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int error, error1;
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if (SCARG(uap, flags) != 0)
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return EINVAL; /* XXX deal with TIMER_ABSTIME */
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if (SCARG(uap, which) != LINUX_CLOCK_REALTIME)
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return EINVAL;
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error = copyin(SCARG_P32(uap, rqtp), &lrqts, sizeof lrqts);
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if (error != 0)
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return error;
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linux32_to_native_timespec(&rqts, &lrqts);
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error = nanosleep1(l, &rqts, SCARG_P32(uap, rmtp) ? &rmts : 0);
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if (SCARG_P32(uap, rmtp) == NULL || (error != 0 && error != EINTR))
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return error;
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native_to_linux32_timespec(&lrmts, &rmts);
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error1 = copyout(&lrmts, SCARG_P32(uap, rmtp), sizeof lrmts);
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return error1 ? error1 : error;
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}
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