1 /*- 2 * Copyright (c) 2014 Bjoern A. Zeeb 3 * All rights reserved. 4 * 5 * This software was developed by SRI International and the University of 6 * Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-11-C-0249 7 * ("MRC2"), as part of the DARPA MRC research programme. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include "opt_compat.h" 34 35 #include <sys/param.h> 36 #include <sys/errno.h> 37 #include <sys/signal.h> 38 #include <sys/syscallsubr.h> 39 #include <sys/systm.h> 40 #include <sys/time.h> 41 #include <sys/types.h> 42 43 #ifdef COMPAT_LINUX32 44 #include <machine/../linux32/linux.h> 45 #include <machine/../linux32/linux32_proto.h> 46 #else 47 #include <machine/../linux/linux.h> 48 #include <machine/../linux/linux_proto.h> 49 #endif 50 #include <compat/linux/linux_timer.h> 51 52 53 static int 54 linux_convert_l_sigevent(struct l_sigevent *l_sig, struct sigevent *sig) 55 { 56 57 CP(*l_sig, *sig, sigev_notify); 58 switch (l_sig->sigev_notify) { 59 case L_SIGEV_SIGNAL: 60 sig->sigev_notify = SIGEV_SIGNAL; 61 sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo); 62 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr); 63 break; 64 case L_SIGEV_NONE: 65 sig->sigev_notify = SIGEV_NONE; 66 break; 67 case L_SIGEV_THREAD: 68 #if 0 69 /* Seems to not be used anywhere (anymore)? */ 70 sig->sigev_notify = SIGEV_THREAD; 71 return (ENOSYS); 72 #else 73 return (EINVAL); 74 #endif 75 case L_SIGEV_THREAD_ID: 76 sig->sigev_notify = SIGEV_THREAD_ID; 77 CP2(*l_sig, *sig, _l_sigev_un._tid, sigev_notify_thread_id); 78 sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo); 79 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr); 80 break; 81 default: 82 return (EINVAL); 83 } 84 return (0); 85 } 86 87 int 88 linux_timer_create(struct thread *td, struct linux_timer_create_args *uap) 89 { 90 struct l_sigevent l_ev; 91 struct sigevent ev, *evp; 92 clockid_t nwhich; 93 int error, id; 94 95 if (uap->evp == NULL) { 96 evp = NULL; 97 } else { 98 error = copyin(uap->evp, &l_ev, sizeof(l_ev)); 99 if (error != 0) 100 return (error); 101 error = linux_convert_l_sigevent(&l_ev, &ev); 102 if (error != 0) 103 return (error); 104 evp = &ev; 105 } 106 error = linux_to_native_clockid(&nwhich, uap->clock_id); 107 if (error != 0) 108 return (error); 109 error = kern_ktimer_create(td, nwhich, evp, &id, -1); 110 if (error == 0) { 111 error = copyout(&id, uap->timerid, sizeof(int)); 112 if (error != 0) 113 kern_ktimer_delete(td, id); 114 } 115 return (error); 116 } 117 118 int 119 linux_timer_settime(struct thread *td, struct linux_timer_settime_args *uap) 120 { 121 struct l_itimerspec l_val, l_oval; 122 struct itimerspec val, oval, *ovalp; 123 int error; 124 125 error = copyin(uap->new, &l_val, sizeof(l_val)); 126 if (error != 0) 127 return (error); 128 ITS_CP(l_val, val); 129 ovalp = uap->old != NULL ? &oval : NULL; 130 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 131 if (error == 0 && uap->old != NULL) { 132 ITS_CP(oval, l_oval); 133 error = copyout(&l_oval, uap->old, sizeof(l_oval)); 134 } 135 return (error); 136 } 137 138 int 139 linux_timer_gettime(struct thread *td, struct linux_timer_gettime_args *uap) 140 { 141 struct l_itimerspec l_val; 142 struct itimerspec val; 143 int error; 144 145 error = kern_ktimer_gettime(td, uap->timerid, &val); 146 if (error == 0) { 147 ITS_CP(val, l_val); 148 error = copyout(&l_val, uap->setting, sizeof(l_val)); 149 } 150 return (error); 151 } 152 153 int 154 linux_timer_getoverrun(struct thread *td, struct linux_timer_getoverrun_args *uap) 155 { 156 157 return (kern_ktimer_getoverrun(td, uap->timerid)); 158 } 159 160 int 161 linux_timer_delete(struct thread *td, struct linux_timer_delete_args *uap) 162 { 163 164 return (kern_ktimer_delete(td, uap->timerid)); 165 } 166