/* $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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation 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 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 __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 #include #include #include #include #include #include #include #include #include #ifdef COMPAT_LINUX32 #include #include #else #include #include #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); }