linux_timer.c revision 283476
1271743Sbz/*- 2271743Sbz * Copyright (c) 2014 Bjoern A. Zeeb 3271743Sbz * All rights reserved. 4271743Sbz * 5271743Sbz * This software was developed by SRI International and the University of 6271743Sbz * Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-11-C-0249 7271743Sbz * ("MRC2"), as part of the DARPA MRC research programme. 8271743Sbz * 9271743Sbz * Redistribution and use in source and binary forms, with or without 10271743Sbz * modification, are permitted provided that the following conditions 11271743Sbz * are met: 12271743Sbz * 1. Redistributions of source code must retain the above copyright 13271743Sbz * notice, this list of conditions and the following disclaimer. 14271743Sbz * 2. Redistributions in binary form must reproduce the above copyright 15271743Sbz * notice, this list of conditions and the following disclaimer in the 16271743Sbz * documentation and/or other materials provided with the distribution. 17271743Sbz * 18271743Sbz * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19271743Sbz * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20271743Sbz * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21271743Sbz * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22271743Sbz * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23271743Sbz * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24271743Sbz * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25271743Sbz * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26271743Sbz * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27271743Sbz * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28271743Sbz * SUCH DAMAGE. 29271743Sbz */ 30271743Sbz#include <sys/cdefs.h> 31271743Sbz__FBSDID("$FreeBSD: head/sys/compat/linux/linux_timer.c 283476 2015-05-24 17:49:09Z dchagin $"); 32271743Sbz 33271743Sbz#include "opt_compat.h" 34271743Sbz 35271743Sbz#include <sys/param.h> 36271743Sbz#include <sys/errno.h> 37271743Sbz#include <sys/signal.h> 38271743Sbz#include <sys/syscallsubr.h> 39271743Sbz#include <sys/systm.h> 40271743Sbz#include <sys/time.h> 41271743Sbz#include <sys/types.h> 42271743Sbz 43271743Sbz#ifdef COMPAT_LINUX32 44271743Sbz#include <machine/../linux32/linux.h> 45271743Sbz#include <machine/../linux32/linux32_proto.h> 46271743Sbz#else 47271743Sbz#include <machine/../linux/linux.h> 48271743Sbz#include <machine/../linux/linux_proto.h> 49271743Sbz#endif 50271743Sbz#include <compat/linux/linux_timer.h> 51271743Sbz 52271743Sbz 53271743Sbzstatic int 54271743Sbzlinux_convert_l_sigevent(struct l_sigevent *l_sig, struct sigevent *sig) 55271743Sbz{ 56271743Sbz 57271743Sbz CP(*l_sig, *sig, sigev_notify); 58271743Sbz switch (l_sig->sigev_notify) { 59271743Sbz case L_SIGEV_SIGNAL: 60271743Sbz sig->sigev_notify = SIGEV_SIGNAL; 61283476Sdchagin sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo); 62271743Sbz PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr); 63271743Sbz break; 64271743Sbz case L_SIGEV_NONE: 65271743Sbz sig->sigev_notify = SIGEV_NONE; 66271743Sbz break; 67271743Sbz case L_SIGEV_THREAD: 68271743Sbz#if 0 69271743Sbz /* Seems to not be used anywhere (anymore)? */ 70271743Sbz sig->sigev_notify = SIGEV_THREAD; 71271743Sbz return (ENOSYS); 72271743Sbz#else 73271743Sbz return (EINVAL); 74271743Sbz#endif 75271743Sbz case L_SIGEV_THREAD_ID: 76271743Sbz sig->sigev_notify = SIGEV_THREAD_ID; 77271743Sbz CP2(*l_sig, *sig, _l_sigev_un._tid, sigev_notify_thread_id); 78283476Sdchagin sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo); 79271743Sbz PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr); 80271743Sbz break; 81271743Sbz default: 82271743Sbz return (EINVAL); 83271743Sbz } 84271743Sbz return (0); 85271743Sbz} 86271743Sbz 87271743Sbzint 88271743Sbzlinux_timer_create(struct thread *td, struct linux_timer_create_args *uap) 89271743Sbz{ 90271743Sbz struct l_sigevent l_ev; 91271743Sbz struct sigevent ev, *evp; 92283464Sdchagin clockid_t nwhich; 93271743Sbz int error, id; 94271743Sbz 95271743Sbz if (uap->evp == NULL) { 96271743Sbz evp = NULL; 97271743Sbz } else { 98271743Sbz error = copyin(uap->evp, &l_ev, sizeof(l_ev)); 99271743Sbz if (error != 0) 100271743Sbz return (error); 101271743Sbz error = linux_convert_l_sigevent(&l_ev, &ev); 102271743Sbz if (error != 0) 103271743Sbz return (error); 104271743Sbz evp = &ev; 105271743Sbz } 106283464Sdchagin error = linux_to_native_clockid(&nwhich, uap->clock_id); 107271743Sbz if (error != 0) 108271743Sbz return (error); 109283464Sdchagin error = kern_ktimer_create(td, nwhich, evp, &id, -1); 110271743Sbz if (error == 0) { 111271743Sbz error = copyout(&id, uap->timerid, sizeof(int)); 112271743Sbz if (error != 0) 113271743Sbz kern_ktimer_delete(td, id); 114271743Sbz } 115271743Sbz return (error); 116271743Sbz} 117271743Sbz 118271743Sbzint 119271743Sbzlinux_timer_settime(struct thread *td, struct linux_timer_settime_args *uap) 120271743Sbz{ 121271743Sbz struct l_itimerspec l_val, l_oval; 122271743Sbz struct itimerspec val, oval, *ovalp; 123271743Sbz int error; 124271743Sbz 125271743Sbz error = copyin(uap->new, &l_val, sizeof(l_val)); 126271743Sbz if (error != 0) 127271743Sbz return (error); 128271743Sbz ITS_CP(l_val, val); 129271743Sbz ovalp = uap->old != NULL ? &oval : NULL; 130271743Sbz error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 131271743Sbz if (error == 0 && uap->old != NULL) { 132271743Sbz ITS_CP(oval, l_oval); 133271743Sbz error = copyout(&l_oval, uap->old, sizeof(l_oval)); 134271743Sbz } 135271743Sbz return (error); 136271743Sbz} 137271743Sbz 138271743Sbzint 139271743Sbzlinux_timer_gettime(struct thread *td, struct linux_timer_gettime_args *uap) 140271743Sbz{ 141271743Sbz struct l_itimerspec l_val; 142271743Sbz struct itimerspec val; 143271743Sbz int error; 144271743Sbz 145271743Sbz error = kern_ktimer_gettime(td, uap->timerid, &val); 146271743Sbz if (error == 0) { 147271743Sbz ITS_CP(val, l_val); 148271743Sbz error = copyout(&l_val, uap->setting, sizeof(l_val)); 149271743Sbz } 150271743Sbz return (error); 151271743Sbz} 152271743Sbz 153271743Sbzint 154271743Sbzlinux_timer_getoverrun(struct thread *td, struct linux_timer_getoverrun_args *uap) 155271743Sbz{ 156271743Sbz 157271743Sbz return (kern_ktimer_getoverrun(td, uap->timerid)); 158271743Sbz} 159271743Sbz 160271743Sbzint 161271743Sbzlinux_timer_delete(struct thread *td, struct linux_timer_delete_args *uap) 162271743Sbz{ 163271743Sbz 164271743Sbz return (kern_ktimer_delete(td, uap->timerid)); 165271743Sbz} 166