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 if (!LINUX_SIG_VALID(l_sig->sigev_signo)) 61 return (EINVAL); 62 sig->sigev_notify = SIGEV_SIGNAL; 63 sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo); 64 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr); 65 break; 66 case L_SIGEV_NONE: 67 sig->sigev_notify = SIGEV_NONE; 68 break; 69 case L_SIGEV_THREAD: 70 #if 0 71 /* Seems to not be used anywhere (anymore)? */ 72 sig->sigev_notify = SIGEV_THREAD; 73 return (ENOSYS); 74 #else 75 return (EINVAL); 76 #endif 77 case L_SIGEV_THREAD_ID: 78 if (!LINUX_SIG_VALID(l_sig->sigev_signo)) 79 return (EINVAL); 80 sig->sigev_notify = SIGEV_THREAD_ID; 81 CP2(*l_sig, *sig, _l_sigev_un._tid, sigev_notify_thread_id); 82 sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo); 83 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr); 84 break; 85 default: 86 return (EINVAL); 87 } 88 return (0); 89 } 90 91 int 92 linux_timer_create(struct thread *td, struct linux_timer_create_args *uap) 93 { 94 struct l_sigevent l_ev; 95 struct sigevent ev, *evp; 96 clockid_t nwhich; 97 int error, id; 98 99 if (uap->evp == NULL) { 100 evp = NULL; 101 } else { 102 error = copyin(uap->evp, &l_ev, sizeof(l_ev)); 103 if (error != 0) 104 return (error); 105 error = linux_convert_l_sigevent(&l_ev, &ev); 106 if (error != 0) 107 return (error); 108 evp = &ev; 109 } 110 error = linux_to_native_clockid(&nwhich, uap->clock_id); 111 if (error != 0) 112 return (error); 113 error = kern_ktimer_create(td, nwhich, evp, &id, -1); 114 if (error == 0) { 115 error = copyout(&id, uap->timerid, sizeof(int)); 116 if (error != 0) 117 kern_ktimer_delete(td, id); 118 } 119 return (error); 120 } 121 122 int 123 linux_timer_settime(struct thread *td, struct linux_timer_settime_args *uap) 124 { 125 struct l_itimerspec l_val, l_oval; 126 struct itimerspec val, oval, *ovalp; 127 int error; 128 129 error = copyin(uap->new, &l_val, sizeof(l_val)); 130 if (error != 0) 131 return (error); 132 ITS_CP(l_val, val); 133 ovalp = uap->old != NULL ? &oval : NULL; 134 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 135 if (error == 0 && uap->old != NULL) { 136 ITS_CP(oval, l_oval); 137 error = copyout(&l_oval, uap->old, sizeof(l_oval)); 138 } 139 return (error); 140 } 141 142 int 143 linux_timer_gettime(struct thread *td, struct linux_timer_gettime_args *uap) 144 { 145 struct l_itimerspec l_val; 146 struct itimerspec val; 147 int error; 148 149 error = kern_ktimer_gettime(td, uap->timerid, &val); 150 if (error == 0) { 151 ITS_CP(val, l_val); 152 error = copyout(&l_val, uap->setting, sizeof(l_val)); 153 } 154 return (error); 155 } 156 157 int 158 linux_timer_getoverrun(struct thread *td, struct linux_timer_getoverrun_args *uap) 159 { 160 161 return (kern_ktimer_getoverrun(td, uap->timerid)); 162 } 163 164 int 165 linux_timer_delete(struct thread *td, struct linux_timer_delete_args *uap) 166 { 167 168 return (kern_ktimer_delete(td, uap->timerid)); 169 } 170