linux32_time.c revision 1.16
1 /* $NetBSD: linux32_time.c,v 1.16 2007/12/20 23:02:59 dsl Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Emmanuel Dreyfus 17 * 4. The name of the author may not be used to endorse or promote 18 * products derived from this software without specific prior written 19 * permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 36 __KERNEL_RCSID(0, "$NetBSD: linux32_time.c,v 1.16 2007/12/20 23:02:59 dsl Exp $"); 37 38 #include <sys/types.h> 39 #include <sys/param.h> 40 #include <sys/fstypes.h> 41 #include <sys/signal.h> 42 #include <sys/dirent.h> 43 #include <sys/kauth.h> 44 #include <sys/kernel.h> 45 #include <sys/fcntl.h> 46 #include <sys/namei.h> 47 #include <sys/select.h> 48 #include <sys/proc.h> 49 #include <sys/resourcevar.h> 50 #include <sys/ucred.h> 51 #include <sys/swap.h> 52 #include <sys/vfs_syscalls.h> 53 54 #include <machine/types.h> 55 56 #include <sys/syscallargs.h> 57 58 #include <compat/netbsd32/netbsd32.h> 59 #include <compat/netbsd32/netbsd32_conv.h> 60 #include <compat/netbsd32/netbsd32_syscallargs.h> 61 62 #include <compat/linux/common/linux_types.h> 63 #include <compat/linux/common/linux_signal.h> 64 #include <compat/linux/common/linux_machdep.h> 65 #include <compat/linux/common/linux_misc.h> 66 #include <compat/linux/common/linux_oldolduname.h> 67 #include <compat/linux/linux_syscallargs.h> 68 69 #include <compat/linux32/common/linux32_types.h> 70 #include <compat/linux32/common/linux32_signal.h> 71 #include <compat/linux32/common/linux32_machdep.h> 72 #include <compat/linux32/common/linux32_sysctl.h> 73 #include <compat/linux32/common/linux32_socketcall.h> 74 #include <compat/linux32/linux32_syscallargs.h> 75 76 extern struct timezone linux_sys_tz; 77 int 78 linux32_sys_gettimeofday(struct lwp *l, const struct linux32_sys_gettimeofday_args *uap, register_t *retval) 79 { 80 /* { 81 syscallarg(netbsd32_timevalp_t) tp; 82 syscallarg(netbsd32_timezonep_t) tzp; 83 } */ 84 struct timeval tv; 85 struct netbsd32_timeval tv32; 86 int error; 87 88 if (SCARG_P32(uap, tp) != NULL) { 89 microtime(&tv); 90 netbsd32_from_timeval(&tv, &tv32); 91 if ((error = copyout(&tv32, SCARG_P32(uap, tp), 92 sizeof(tv32))) != 0) 93 return error; 94 } 95 96 /* timezone size does not change */ 97 if (SCARG_P32(uap, tzp) != NULL) { 98 if ((error = copyout(&linux_sys_tz, SCARG_P32(uap, tzp), 99 sizeof(linux_sys_tz))) != 0) 100 return error; 101 } 102 103 return 0; 104 } 105 106 int 107 linux32_sys_settimeofday(struct lwp *l, const struct linux32_sys_settimeofday_args *uap, register_t *retval) 108 { 109 /* { 110 syscallarg(netbsd32_timevalp_t) tp; 111 syscallarg(netbsd32_timezonep_t) tzp; 112 } */ 113 struct linux_sys_settimeofday_args ua; 114 115 NETBSD32TOP_UAP(tp, struct timeval); 116 NETBSD32TOP_UAP(tzp, struct timezone); 117 118 return linux_sys_settimeofday(l, &ua, retval); 119 } 120 121 int 122 linux32_sys_time(struct lwp *l, const struct linux32_sys_time_args *uap, register_t *retval) 123 { 124 /* { 125 syscallcarg(linux32_timep_t) t; 126 } */ 127 struct timeval atv; 128 linux32_time_t tt; 129 int error; 130 131 microtime(&atv); 132 133 tt = (linux32_time_t)atv.tv_sec; 134 135 if (SCARG_P32(uap, t) && (error = copyout(&tt, 136 SCARG_P32(uap, t), sizeof(tt)))) 137 return error; 138 139 retval[0] = tt; 140 141 return 0; 142 } 143 144 145 static inline linux32_clock_t 146 timeval_to_clock_t(struct timeval *tv) 147 { 148 return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz); 149 } 150 151 int 152 linux32_sys_times(struct lwp *l, const struct linux32_sys_times_args *uap, register_t *retval) 153 { 154 /* { 155 syscallarg(linux32_tmsp_t) tms; 156 } */ 157 struct linux32_tms ltms32; 158 159 struct timeval t; 160 struct rusage *ru; 161 struct proc *p = l->l_proc; 162 163 ru = &p->p_stats->p_ru; 164 mutex_enter(&p->p_smutex); 165 calcru(p, &ru->ru_utime, &ru->ru_stime, NULL, NULL); 166 mutex_exit(&p->p_smutex); 167 168 ltms32.ltms32_utime = timeval_to_clock_t(&ru->ru_utime); 169 ltms32.ltms32_stime = timeval_to_clock_t(&ru->ru_stime); 170 171 ru = &p->p_stats->p_cru; 172 ltms32.ltms32_cutime = timeval_to_clock_t(&ru->ru_utime); 173 ltms32.ltms32_cstime = timeval_to_clock_t(&ru->ru_stime); 174 175 microtime(&t); 176 *retval = timeval_to_clock_t(&t); 177 178 return copyout(<ms32, SCARG_P32(uap, tms), sizeof(ltms32)); 179 } 180 181 int 182 linux32_sys_stime(struct lwp *l, const struct linux32_sys_stime_args *uap, register_t *retval) 183 { 184 /* { 185 syscallarg(linux32_timep_t) t; 186 } */ 187 struct timespec ts; 188 linux32_time_t tt32; 189 int error; 190 191 if ((error = copyin(&tt32, SCARG_P32(uap, t), sizeof tt32)) != 0) 192 return error; 193 194 ts.tv_sec = (long)tt32; 195 ts.tv_nsec = 0; 196 197 return settime(l->l_proc, &ts); 198 } 199 200 int 201 linux32_sys_utime(struct lwp *l, const struct linux32_sys_utime_args *uap, register_t *retval) 202 { 203 /* { 204 syscallarg(const netbsd32_charp) path; 205 syscallarg(linux32_utimbufp_t) times; 206 } */ 207 struct timeval tv[2], *tvp; 208 struct linux32_utimbuf lut; 209 int error; 210 211 if (SCARG_P32(uap, times) != NULL) { 212 if ((error = copyin(SCARG_P32(uap, times), &lut, sizeof lut))) 213 return error; 214 215 tv[0].tv_sec = (long)lut.l_actime; 216 tv[0].tv_usec = 0; 217 tv[1].tv_sec = (long)lut.l_modtime; 218 tv[1].tv_usec = 0; 219 tvp = tv; 220 } else { 221 tvp = NULL; 222 } 223 224 return do_sys_utimes(l, NULL, SCARG_P32(uap, path), FOLLOW, 225 tvp, UIO_SYSSPACE); 226 } 227
Indexes created Tue Sep 23 21:09:50 GMT 2025