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 <sys/param.h> 34 #include <sys/errno.h> 35 #include <sys/signal.h> 36 #include <sys/syscallsubr.h> 37 #include <sys/systm.h> 38 #include <sys/time.h> 39 #include <sys/types.h> 40 41 #ifdef COMPAT_LINUX32 42 #include <machine/../linux32/linux.h> 43 #include <machine/../linux32/linux32_proto.h> 44 #else 45 #include <machine/../linux/linux.h> 46 #include <machine/../linux/linux_proto.h> 47 #endif 48 #include <compat/linux/linux_timer.h> 49 50 static int 51 linux_convert_l_sigevent(struct l_sigevent *l_sig, struct sigevent *sig) 52 { 53 54 CP(*l_sig, *sig, sigev_notify); 55 switch (l_sig->sigev_notify) { 56 case L_SIGEV_SIGNAL: 57 if (!LINUX_SIG_VALID(l_sig->sigev_signo)) 58 return (EINVAL); 59 sig->sigev_notify = SIGEV_SIGNAL; 60 sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo); 61 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr); 62 break; 63 case L_SIGEV_NONE: 64 sig->sigev_notify = SIGEV_NONE; 65 break; 66 case L_SIGEV_THREAD: 67 #if 0 68 /* Seems to not be used anywhere (anymore)? */ 69 sig->sigev_notify = SIGEV_THREAD; 70 return (ENOSYS); 71 #else 72 return (EINVAL); 73 #endif 74 case L_SIGEV_THREAD_ID: 75 if (!LINUX_SIG_VALID(l_sig->sigev_signo)) 76 return (EINVAL); 77 sig->sigev_notify = SIGEV_THREAD_ID; 78 CP2(*l_sig, *sig, _l_sigev_un._tid, sigev_notify_thread_id); 79 sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo); 80 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr); 81 break; 82 default: 83 return (EINVAL); 84 } 85 return (0); 86 } 87 88 int 89 linux_timer_create(struct thread *td, struct linux_timer_create_args *uap) 90 { 91 struct l_sigevent l_ev; 92 struct sigevent ev, *evp; 93 clockid_t nwhich; 94 int error, id; 95 96 if (uap->evp == NULL) { 97 evp = NULL; 98 } else { 99 error = copyin(uap->evp, &l_ev, sizeof(l_ev)); 100 if (error != 0) 101 return (error); 102 error = linux_convert_l_sigevent(&l_ev, &ev); 103 if (error != 0) 104 return (error); 105 evp = &ev; 106 } 107 error = linux_to_native_clockid(&nwhich, uap->clock_id); 108 if (error != 0) 109 return (error); 110 error = kern_ktimer_create(td, nwhich, evp, &id, -1); 111 if (error == 0) { 112 error = copyout(&id, uap->timerid, sizeof(int)); 113 if (error != 0) 114 kern_ktimer_delete(td, id); 115 } 116 return (error); 117 } 118 119 int 120 linux_timer_settime(struct thread *td, struct linux_timer_settime_args *uap) 121 { 122 struct l_itimerspec l_val, l_oval; 123 struct itimerspec val, oval, *ovalp; 124 int flags, error; 125 126 error = copyin(uap->new, &l_val, sizeof(l_val)); 127 if (error != 0) 128 return (error); 129 error = linux_to_native_itimerspec(&val, &l_val); 130 if (error != 0) 131 return (error); 132 ovalp = uap->old != NULL ? &oval : NULL; 133 error = linux_to_native_timerflags(&flags, uap->flags); 134 if (error != 0) 135 return (error); 136 error = kern_ktimer_settime(td, uap->timerid, flags, &val, ovalp); 137 if (error == 0 && uap->old != NULL) { 138 error = native_to_linux_itimerspec(&l_val, &val); 139 if (error == 0) 140 error = copyout(&l_oval, uap->old, sizeof(l_oval)); 141 } 142 return (error); 143 } 144 145 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 146 int 147 linux_timer_settime64(struct thread *td, struct linux_timer_settime64_args *uap) 148 { 149 struct l_itimerspec64 l_val, l_oval; 150 struct itimerspec val, oval, *ovalp; 151 int flags, error; 152 153 error = copyin(uap->new, &l_val, sizeof(l_val)); 154 if (error != 0) 155 return (error); 156 error = linux_to_native_itimerspec64(&val, &l_val); 157 if (error != 0) 158 return (error); 159 ovalp = uap->old != NULL ? &oval : NULL; 160 error = linux_to_native_timerflags(&flags, uap->flags); 161 if (error != 0) 162 return (error); 163 error = kern_ktimer_settime(td, uap->timerid, flags, &val, ovalp); 164 if (error == 0 && uap->old != NULL) { 165 error = native_to_linux_itimerspec64(&l_val, &val); 166 if (error == 0) 167 error = copyout(&l_oval, uap->old, sizeof(l_oval)); 168 } 169 return (error); 170 } 171 #endif 172 173 int 174 linux_timer_gettime(struct thread *td, struct linux_timer_gettime_args *uap) 175 { 176 struct l_itimerspec l_val; 177 struct itimerspec val; 178 int error; 179 180 error = kern_ktimer_gettime(td, uap->timerid, &val); 181 if (error == 0) 182 error = native_to_linux_itimerspec(&l_val, &val); 183 if (error == 0) 184 error = copyout(&l_val, uap->setting, sizeof(l_val)); 185 return (error); 186 } 187 188 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 189 int 190 linux_timer_gettime64(struct thread *td, struct linux_timer_gettime64_args *uap) 191 { 192 struct l_itimerspec64 l_val; 193 struct itimerspec val; 194 int error; 195 196 error = kern_ktimer_gettime(td, uap->timerid, &val); 197 if (error == 0) 198 error = native_to_linux_itimerspec64(&l_val, &val); 199 if (error == 0) 200 error = copyout(&l_val, uap->setting, sizeof(l_val)); 201 return (error); 202 } 203 #endif 204 205 int 206 linux_timer_getoverrun(struct thread *td, struct linux_timer_getoverrun_args *uap) 207 { 208 209 return (kern_ktimer_getoverrun(td, uap->timerid)); 210 } 211 212 int 213 linux_timer_delete(struct thread *td, struct linux_timer_delete_args *uap) 214 { 215 216 return (kern_ktimer_delete(td, uap->timerid)); 217 } 218