linux32_time.c revision 1.10
1 /* $NetBSD: linux32_time.c,v 1.10 2007/03/18 21:38:32 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 1.10 2007/03/18 21:38:32 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/select.h> 47 #include <sys/proc.h> 48 #include <sys/ucred.h> 49 #include <sys/swap.h> 50 51 #include <machine/types.h> 52 53 #include <sys/syscallargs.h> 54 55 #include <compat/netbsd32/netbsd32.h> 56 #include <compat/netbsd32/netbsd32_conv.h> 57 #include <compat/netbsd32/netbsd32_syscallargs.h> 58 59 #include <compat/linux/common/linux_types.h> 60 #include <compat/linux/common/linux_signal.h> 61 #include <compat/linux/common/linux_machdep.h> 62 #include <compat/linux/common/linux_misc.h> 63 #include <compat/linux/common/linux_oldolduname.h> 64 #include <compat/linux/linux_syscallargs.h> 65 66 #include <compat/linux32/common/linux32_types.h> 67 #include <compat/linux32/common/linux32_signal.h> 68 #include <compat/linux32/common/linux32_machdep.h> 69 #include <compat/linux32/common/linux32_sysctl.h> 70 #include <compat/linux32/common/linux32_socketcall.h> 71 #include <compat/linux32/linux32_syscallargs.h> 72 73 extern struct timezone linux_sys_tz; 74 int 75 linux32_sys_gettimeofday(l, v, retval) 76 struct lwp *l; 77 void *v; 78 register_t *retval; 79 { 80 struct linux32_sys_gettimeofday_args /* { 81 syscallarg(netbsd32_timevalp_t) tp; 82 syscallarg(netbsd32_timezonep_t) tzp; 83 } */ *uap = v; 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(l, v, retval) 108 struct lwp *l; 109 void *v; 110 register_t *retval; 111 { 112 struct linux32_sys_settimeofday_args /* { 113 syscallarg(netbsd32_timevalp_t) tp; 114 syscallarg(netbsd32_timezonep_t) tzp; 115 } */ *uap = v; 116 struct linux_sys_settimeofday_args ua; 117 118 NETBSD32TOP_UAP(tp, struct timeval); 119 NETBSD32TOP_UAP(tzp, struct timezone); 120 121 return linux_sys_settimeofday(l, &ua, retval); 122 } 123 124 int 125 linux32_sys_time(l, v, retval) 126 struct lwp *l; 127 void *v; 128 register_t *retval; 129 { 130 struct linux32_sys_time_args /* { 131 syscallcarg(linux32_timep_t) t; 132 } */ *uap = v; 133 struct timeval atv; 134 linux32_time_t tt; 135 int error; 136 137 microtime(&atv); 138 139 tt = (linux32_time_t)atv.tv_sec; 140 141 if (SCARG_P32(uap, t) && (error = copyout(&tt, 142 SCARG_P32(uap, t), sizeof(tt)))) 143 return error; 144 145 retval[0] = tt; 146 147 return 0; 148 } 149 150 151 int 152 linux32_sys_times(l, v, retval) 153 struct lwp *l; 154 void *v; 155 register_t *retval; 156 { 157 struct linux32_sys_times_args /* { 158 syscallarg(linux32_tmsp_t) tms; 159 } */ *uap = v; 160 struct linux32_tms ltms32; 161 struct linux_tms ltms; 162 struct linux_tms *ltmsp; 163 struct linux_sys_times_args ua; 164 void *sg = stackgap_init(l->l_proc, 0); 165 int error; 166 167 ltmsp = stackgap_alloc(l->l_proc, &sg, sizeof(*ltmsp)); 168 SCARG(&ua, tms) = (struct times *)ltmsp; 169 170 if ((error = linux_sys_times(l, &ua, retval)) != 0) 171 return error; 172 173 if ((error = copyin(ltmsp, <ms, sizeof(ltms))) != 0) 174 return error; 175 176 ltms32.ltms32_utime = (linux32_clock_t)ltms.ltms_utime; 177 ltms32.ltms32_stime = (linux32_clock_t)ltms.ltms_stime; 178 ltms32.ltms32_cutime = (linux32_clock_t)ltms.ltms_cutime; 179 ltms32.ltms32_cstime = (linux32_clock_t)ltms.ltms_cstime; 180 181 if ((error = copyout(<ms32, 182 SCARG_P32(uap, tms), sizeof(ltms32))) != 0) 183 return error; 184 185 return 0; 186 } 187 188 int 189 linux32_sys_stime(l, v, retval) 190 struct lwp *l; 191 void *v; 192 register_t *retval; 193 { 194 struct linux32_sys_stime_args /* { 195 syscallarg(linux32_timep_t) t; 196 } */ *uap = v; 197 struct timespec ts; 198 linux32_time_t tt32; 199 int error; 200 201 if ((error = kauth_authorize_system(l->l_cred, 202 KAUTH_SYSTEM_TIME, KAUTH_REQ_SYSTEM_TIME_SYSTEM, NULL, NULL, 203 NULL)) != 0) 204 return error; 205 206 if ((error = copyin(&tt32, SCARG_P32(uap, t), sizeof tt32)) != 0) 207 return error; 208 209 ts.tv_sec = (long)tt32; 210 ts.tv_nsec = 0; 211 212 return settime(l->l_proc, &ts); 213 } 214 215 int 216 linux32_sys_utime(l, v, retval) 217 struct lwp *l; 218 void *v; 219 register_t *retval; 220 { 221 struct linux32_sys_utime_args /* { 222 syscallarg(const netbsd32_charp) path; 223 syscallarg(linux32_utimbufp_t) times; 224 } */ *uap = v; 225 struct proc *p = l->l_proc; 226 void *sg = stackgap_init(p, 0); 227 struct sys_utimes_args ua; 228 struct timeval tv[2], *tvp; 229 struct linux32_utimbuf lut; 230 int error; 231 232 NETBSD32TOP_UAP(path, const char); 233 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 234 235 236 if (SCARG_P32(uap, times) != NULL) { 237 if ((error = copyin(SCARG_P32(uap, times), &lut, sizeof lut))) 238 return error; 239 240 tv[0].tv_sec = (long)lut.l_actime; 241 tv[0].tv_usec = 0; 242 tv[1].tv_sec = (long)lut.l_modtime; 243 tv[1].tv_usec = 0; 244 245 tvp = (struct timeval *) stackgap_alloc(p, &sg, sizeof(tv)); 246 247 if ((error = copyout(tv, tvp, sizeof(tv)))) 248 return error; 249 SCARG(&ua, tptr) = tvp; 250 } else { 251 SCARG(&ua, tptr) = NULL; 252 } 253 254 return sys_utimes(l, &ua, retval); 255 } 256
Indexes created Tue Sep 23 02:09:52 GMT 2025