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