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 31 #include <sys/param.h> 32 #include <sys/proc.h> 33 #include <sys/signal.h> 34 #include <sys/syscallsubr.h> 35 #include <sys/time.h> 36 37 #ifdef COMPAT_LINUX32 38 #include <machine/../linux32/linux.h> 39 #include <machine/../linux32/linux32_proto.h> 40 #else 41 #include <machine/../linux/linux.h> 42 #include <machine/../linux/linux_proto.h> 43 #endif 44 #include <compat/linux/linux_time.h> 45 46 static int 47 linux_convert_l_sigevent(struct l_sigevent *l_sig, struct sigevent *sig) 48 { 49 50 CP(*l_sig, *sig, sigev_notify); 51 switch (l_sig->sigev_notify) { 52 case L_SIGEV_SIGNAL: 53 if (!LINUX_SIG_VALID(l_sig->sigev_signo)) 54 return (EINVAL); 55 sig->sigev_notify = SIGEV_SIGNAL; 56 sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo); 57 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr); 58 break; 59 case L_SIGEV_NONE: 60 sig->sigev_notify = SIGEV_NONE; 61 break; 62 case L_SIGEV_THREAD: 63 #if 0 64 /* Seems to not be used anywhere (anymore)? */ 65 sig->sigev_notify = SIGEV_THREAD; 66 return (ENOSYS); 67 #else 68 return (EINVAL); 69 #endif 70 case L_SIGEV_THREAD_ID: 71 if (!LINUX_SIG_VALID(l_sig->sigev_signo)) 72 return (EINVAL); 73 sig->sigev_notify = SIGEV_THREAD_ID; 74 CP2(*l_sig, *sig, _l_sigev_un._tid, sigev_notify_thread_id); 75 sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo); 76 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr); 77 break; 78 default: 79 return (EINVAL); 80 } 81 return (0); 82 } 83 84 int 85 linux_timer_create(struct thread *td, struct linux_timer_create_args *uap) 86 { 87 struct l_sigevent l_ev; 88 struct sigevent ev, *evp; 89 clockid_t nwhich; 90 int error, id; 91 92 if (uap->evp == NULL) { 93 evp = NULL; 94 } else { 95 error = copyin(uap->evp, &l_ev, sizeof(l_ev)); 96 if (error != 0) 97 return (error); 98 error = linux_convert_l_sigevent(&l_ev, &ev); 99 if (error != 0) 100 return (error); 101 evp = &ev; 102 } 103 error = linux_to_native_clockid(&nwhich, uap->clock_id); 104 if (error != 0) 105 return (error); 106 error = kern_ktimer_create(td, nwhich, evp, &id, -1); 107 if (error == 0) { 108 error = copyout(&id, uap->timerid, sizeof(int)); 109 if (error != 0) 110 kern_ktimer_delete(td, id); 111 } 112 return (error); 113 } 114 115 int 116 linux_timer_settime(struct thread *td, struct linux_timer_settime_args *uap) 117 { 118 struct l_itimerspec l_val, l_oval; 119 struct itimerspec val, oval, *ovalp; 120 int flags, error; 121 122 error = copyin(uap->new, &l_val, sizeof(l_val)); 123 if (error != 0) 124 return (error); 125 error = linux_to_native_itimerspec(&val, &l_val); 126 if (error != 0) 127 return (error); 128 ovalp = uap->old != NULL ? &oval : NULL; 129 error = linux_to_native_timerflags(&flags, uap->flags); 130 if (error != 0) 131 return (error); 132 error = kern_ktimer_settime(td, uap->timerid, flags, &val, ovalp); 133 if (error == 0 && uap->old != NULL) { 134 error = native_to_linux_itimerspec(&l_val, &val); 135 if (error == 0) 136 error = copyout(&l_oval, uap->old, sizeof(l_oval)); 137 } 138 return (error); 139 } 140 141 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 142 int 143 linux_timer_settime64(struct thread *td, struct linux_timer_settime64_args *uap) 144 { 145 struct l_itimerspec64 l_val, l_oval; 146 struct itimerspec val, oval, *ovalp; 147 int flags, error; 148 149 error = copyin(uap->new, &l_val, sizeof(l_val)); 150 if (error != 0) 151 return (error); 152 error = linux_to_native_itimerspec64(&val, &l_val); 153 if (error != 0) 154 return (error); 155 ovalp = uap->old != NULL ? &oval : NULL; 156 error = linux_to_native_timerflags(&flags, uap->flags); 157 if (error != 0) 158 return (error); 159 error = kern_ktimer_settime(td, uap->timerid, flags, &val, ovalp); 160 if (error == 0 && uap->old != NULL) { 161 error = native_to_linux_itimerspec64(&l_val, &val); 162 if (error == 0) 163 error = copyout(&l_oval, uap->old, sizeof(l_oval)); 164 } 165 return (error); 166 } 167 #endif 168 169 int 170 linux_timer_gettime(struct thread *td, struct linux_timer_gettime_args *uap) 171 { 172 struct l_itimerspec l_val; 173 struct itimerspec val; 174 int error; 175 176 error = kern_ktimer_gettime(td, uap->timerid, &val); 177 if (error == 0) 178 error = native_to_linux_itimerspec(&l_val, &val); 179 if (error == 0) 180 error = copyout(&l_val, uap->setting, sizeof(l_val)); 181 return (error); 182 } 183 184 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 185 int 186 linux_timer_gettime64(struct thread *td, struct linux_timer_gettime64_args *uap) 187 { 188 struct l_itimerspec64 l_val; 189 struct itimerspec val; 190 int error; 191 192 error = kern_ktimer_gettime(td, uap->timerid, &val); 193 if (error == 0) 194 error = native_to_linux_itimerspec64(&l_val, &val); 195 if (error == 0) 196 error = copyout(&l_val, uap->setting, sizeof(l_val)); 197 return (error); 198 } 199 #endif 200 201 int 202 linux_timer_getoverrun(struct thread *td, struct linux_timer_getoverrun_args *uap) 203 { 204 205 return (kern_ktimer_getoverrun(td, uap->timerid)); 206 } 207 208 int 209 linux_timer_delete(struct thread *td, struct linux_timer_delete_args *uap) 210 { 211 212 return (kern_ktimer_delete(td, uap->timerid)); 213 } 214