1 /* $NetBSD: netbsd32_time.c,v 1.41 2010/04/08 11:51:14 njoly Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2001 Matthew R. Green 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: netbsd32_time.c,v 1.41 2010/04/08 11:51:14 njoly Exp $"); 31 32 #if defined(_KERNEL_OPT) 33 #include "opt_ntp.h" 34 #include "opt_compat_netbsd.h" 35 #endif 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/mount.h> 40 #include <sys/time.h> 41 #include <sys/timex.h> 42 #include <sys/timevar.h> 43 #include <sys/proc.h> 44 #include <sys/pool.h> 45 #include <sys/resourcevar.h> 46 #include <sys/dirent.h> 47 #include <sys/kauth.h> 48 49 #include <compat/netbsd32/netbsd32.h> 50 #include <compat/netbsd32/netbsd32_syscallargs.h> 51 #include <compat/netbsd32/netbsd32_conv.h> 52 53 #ifdef NTP 54 55 int 56 netbsd32___ntp_gettime50(struct lwp *l, 57 const struct netbsd32___ntp_gettime50_args *uap, register_t *retval) 58 { 59 /* { 60 syscallarg(netbsd32_ntptimevalp_t) ntvp; 61 } */ 62 struct netbsd32_ntptimeval ntv32; 63 struct ntptimeval ntv; 64 int error = 0; 65 66 if (SCARG_P32(uap, ntvp)) { 67 ntp_gettime(&ntv); 68 69 ntv32.time.tv_sec = ntv.time.tv_sec; 70 ntv32.time.tv_nsec = ntv.time.tv_nsec; 71 ntv32.maxerror = (netbsd32_long)ntv.maxerror; 72 ntv32.esterror = (netbsd32_long)ntv.esterror; 73 ntv32.tai = (netbsd32_long)ntv.tai; 74 ntv32.time_state = ntv.time_state; 75 error = copyout(&ntv32, SCARG_P32(uap, ntvp), sizeof(ntv32)); 76 } 77 if (!error) { 78 *retval = ntp_timestatus(); 79 } 80 81 return (error); 82 } 83 84 #ifdef COMPAT_50 85 int 86 compat_50_netbsd32_ntp_gettime(struct lwp *l, 87 const struct compat_50_netbsd32_ntp_gettime_args *uap, register_t *retval) 88 { 89 /* { 90 syscallarg(netbsd32_ntptimeval50p_t) ntvp; 91 } */ 92 struct netbsd32_ntptimeval50 ntv32; 93 struct ntptimeval ntv; 94 int error = 0; 95 96 if (SCARG_P32(uap, ntvp)) { 97 ntp_gettime(&ntv); 98 99 ntv32.time.tv_sec = (int32_t)ntv.time.tv_sec; 100 ntv32.time.tv_nsec = ntv.time.tv_nsec; 101 ntv32.maxerror = (netbsd32_long)ntv.maxerror; 102 ntv32.esterror = (netbsd32_long)ntv.esterror; 103 ntv32.tai = (netbsd32_long)ntv.tai; 104 ntv32.time_state = ntv.time_state; 105 error = copyout(&ntv32, SCARG_P32(uap, ntvp), sizeof(ntv32)); 106 } 107 if (!error) { 108 *retval = ntp_timestatus(); 109 } 110 111 return (error); 112 } 113 #endif 114 115 #ifdef COMPAT_30 116 int 117 compat_30_netbsd32_ntp_gettime(struct lwp *l, const struct compat_30_netbsd32_ntp_gettime_args *uap, register_t *retval) 118 { 119 /* { 120 syscallarg(netbsd32_ntptimevalp_t) ntvp; 121 } */ 122 struct netbsd32_ntptimeval30 ntv32; 123 struct ntptimeval ntv; 124 int error = 0; 125 126 if (SCARG_P32(uap, ntvp)) { 127 ntp_gettime(&ntv); 128 129 ntv32.time.tv_sec = ntv.time.tv_sec; 130 ntv32.time.tv_usec = ntv.time.tv_nsec / 1000; 131 ntv32.maxerror = (netbsd32_long)ntv.maxerror; 132 ntv32.esterror = (netbsd32_long)ntv.esterror; 133 error = copyout(&ntv32, SCARG_P32(uap, ntvp), sizeof(ntv32)); 134 } 135 if (!error) { 136 *retval = ntp_timestatus(); 137 } 138 139 return (error); 140 } 141 #endif 142 143 int 144 netbsd32_ntp_adjtime(struct lwp *l, const struct netbsd32_ntp_adjtime_args *uap, register_t *retval) 145 { 146 /* { 147 syscallarg(netbsd32_timexp_t) tp; 148 } */ 149 struct netbsd32_timex ntv32; 150 struct timex ntv; 151 int error = 0; 152 int modes; 153 154 if ((error = copyin(SCARG_P32(uap, tp), &ntv32, sizeof(ntv32)))) 155 return (error); 156 157 netbsd32_to_timex(&ntv32, &ntv); 158 159 /* 160 * Update selected clock variables - only the superuser can 161 * change anything. Note that there is no error checking here on 162 * the assumption the superuser should know what it is doing. 163 */ 164 modes = ntv.modes; 165 if (modes != 0 && (error = kauth_authorize_system(l->l_cred, 166 KAUTH_SYSTEM_TIME, KAUTH_REQ_SYSTEM_TIME_NTPADJTIME, NULL, NULL, 167 NULL))) 168 return (error); 169 170 ntp_adjtime1(&ntv); 171 172 netbsd32_from_timex(&ntv, &ntv32); 173 error = copyout(&ntv32, SCARG_P32(uap, tp), sizeof(ntv32)); 174 if (!error) { 175 *retval = ntp_timestatus(); 176 } 177 return error; 178 } 179 #endif /* NTP */ 180 181 int 182 netbsd32___setitimer50(struct lwp *l, const struct netbsd32___setitimer50_args *uap, register_t *retval) 183 { 184 /* { 185 syscallarg(int) which; 186 syscallarg(const netbsd32_itimervalp_t) itv; 187 syscallarg(netbsd32_itimervalp_t) oitv; 188 } */ 189 struct proc *p = l->l_proc; 190 struct netbsd32_itimerval s32it, *itv32; 191 int which = SCARG(uap, which); 192 struct netbsd32___getitimer50_args getargs; 193 struct itimerval aitv; 194 int error; 195 196 if ((u_int)which > ITIMER_PROF) 197 return (EINVAL); 198 itv32 = SCARG_P32(uap, itv); 199 if (itv32) { 200 if ((error = copyin(itv32, &s32it, sizeof(s32it)))) 201 return (error); 202 netbsd32_to_itimerval(&s32it, &aitv); 203 } 204 if (SCARG_P32(uap, oitv) != 0) { 205 SCARG(&getargs, which) = which; 206 SCARG(&getargs, itv) = SCARG(uap, oitv); 207 if ((error = netbsd32___getitimer50(l, &getargs, retval)) != 0) 208 return (error); 209 } 210 if (itv32 == 0) 211 return 0; 212 213 return dosetitimer(p, which, &aitv); 214 } 215 216 int 217 netbsd32___getitimer50(struct lwp *l, const struct netbsd32___getitimer50_args *uap, register_t *retval) 218 { 219 /* { 220 syscallarg(int) which; 221 syscallarg(netbsd32_itimervalp_t) itv; 222 } */ 223 struct proc *p = l->l_proc; 224 struct netbsd32_itimerval s32it; 225 struct itimerval aitv; 226 int error; 227 228 error = dogetitimer(p, SCARG(uap, which), &aitv); 229 if (error) 230 return error; 231 232 netbsd32_from_itimerval(&aitv, &s32it); 233 return copyout(&s32it, SCARG_P32(uap, itv), sizeof(s32it)); 234 } 235 236 int 237 netbsd32___gettimeofday50(struct lwp *l, const struct netbsd32___gettimeofday50_args *uap, register_t *retval) 238 { 239 /* { 240 syscallarg(netbsd32_timevalp_t) tp; 241 syscallarg(netbsd32_timezonep_t) tzp; 242 } */ 243 struct timeval atv; 244 struct netbsd32_timeval tv32; 245 int error = 0; 246 struct netbsd32_timezone tzfake; 247 248 if (SCARG_P32(uap, tp)) { 249 microtime(&atv); 250 netbsd32_from_timeval(&atv, &tv32); 251 error = copyout(&tv32, SCARG_P32(uap, tp), sizeof(tv32)); 252 if (error) 253 return (error); 254 } 255 if (SCARG_P32(uap, tzp)) { 256 /* 257 * NetBSD has no kernel notion of time zone, so we just 258 * fake up a timezone struct and return it if demanded. 259 */ 260 tzfake.tz_minuteswest = 0; 261 tzfake.tz_dsttime = 0; 262 error = copyout(&tzfake, SCARG_P32(uap, tzp), sizeof(tzfake)); 263 } 264 return (error); 265 } 266 267 int 268 netbsd32___settimeofday50(struct lwp *l, const struct netbsd32___settimeofday50_args *uap, register_t *retval) 269 { 270 /* { 271 syscallarg(const netbsd32_timevalp_t) tv; 272 syscallarg(const netbsd32_timezonep_t) tzp; 273 } */ 274 struct netbsd32_timeval atv32; 275 struct timeval atv; 276 struct timespec ats; 277 int error; 278 struct proc *p = l->l_proc; 279 280 /* Verify all parameters before changing time. */ 281 282 /* 283 * NetBSD has no kernel notion of time zone, and only an 284 * obsolete program would try to set it, so we log a warning. 285 */ 286 if (SCARG_P32(uap, tzp)) 287 printf("pid %d attempted to set the " 288 "(obsolete) kernel time zone\n", p->p_pid); 289 290 if (SCARG_P32(uap, tv) == 0) 291 return 0; 292 293 if ((error = copyin(SCARG_P32(uap, tv), &atv32, sizeof(atv32))) != 0) 294 return error; 295 296 netbsd32_to_timeval(&atv32, &atv); 297 TIMEVAL_TO_TIMESPEC(&atv, &ats); 298 return settime(p, &ats); 299 } 300 301 int 302 netbsd32___adjtime50(struct lwp *l, const struct netbsd32___adjtime50_args *uap, register_t *retval) 303 { 304 /* { 305 syscallarg(const netbsd32_timevalp_t) delta; 306 syscallarg(netbsd32_timevalp_t) olddelta; 307 } */ 308 struct netbsd32_timeval atv; 309 int error; 310 311 extern int time_adjusted; /* in kern_ntptime.c */ 312 extern int64_t time_adjtime; /* in kern_ntptime.c */ 313 314 if ((error = kauth_authorize_system(l->l_cred, 315 KAUTH_SYSTEM_TIME, KAUTH_REQ_SYSTEM_TIME_ADJTIME, NULL, NULL, 316 NULL)) != 0) 317 return (error); 318 319 if (SCARG_P32(uap, olddelta)) { 320 atv.tv_sec = time_adjtime / 1000000; 321 atv.tv_usec = time_adjtime % 1000000; 322 if (atv.tv_usec < 0) { 323 atv.tv_usec += 1000000; 324 atv.tv_sec--; 325 } 326 (void) copyout(&atv, 327 SCARG_P32(uap, olddelta), 328 sizeof(atv)); 329 if (error) 330 return (error); 331 } 332 333 if (SCARG_P32(uap, delta)) { 334 error = copyin(SCARG_P32(uap, delta), &atv, 335 sizeof(struct timeval)); 336 if (error) 337 return (error); 338 339 time_adjtime = (int64_t)atv.tv_sec * 1000000 + atv.tv_usec; 340 341 if (time_adjtime) 342 /* We need to save the system time during shutdown */ 343 time_adjusted |= 1; 344 } 345 346 return (0); 347 } 348 349 int 350 netbsd32___clock_gettime50(struct lwp *l, const struct netbsd32___clock_gettime50_args *uap, register_t *retval) 351 { 352 /* { 353 syscallarg(netbsd32_clockid_t) clock_id; 354 syscallarg(netbsd32_timespecp_t) tp; 355 } */ 356 int error; 357 struct timespec ats; 358 struct netbsd32_timespec ts32; 359 360 error = clock_gettime1(SCARG(uap, clock_id), &ats); 361 if (error != 0) 362 return error; 363 364 netbsd32_from_timespec(&ats, &ts32); 365 return copyout(&ts32, SCARG_P32(uap, tp), sizeof(ts32)); 366 } 367 368 int 369 netbsd32___clock_settime50(struct lwp *l, const struct netbsd32___clock_settime50_args *uap, register_t *retval) 370 { 371 /* { 372 syscallarg(netbsd32_clockid_t) clock_id; 373 syscallarg(const netbsd32_timespecp_t) tp; 374 } */ 375 struct netbsd32_timespec ts32; 376 struct timespec ats; 377 int error; 378 379 if ((error = copyin(SCARG_P32(uap, tp), &ts32, sizeof(ts32))) != 0) 380 return (error); 381 382 netbsd32_to_timespec(&ts32, &ats); 383 return clock_settime1(l->l_proc, SCARG(uap, clock_id), &ats, true); 384 } 385 386 int 387 netbsd32___clock_getres50(struct lwp *l, const struct netbsd32___clock_getres50_args *uap, register_t *retval) 388 { 389 /* { 390 syscallarg(netbsd32_clockid_t) clock_id; 391 syscallarg(netbsd32_timespecp_t) tp; 392 } */ 393 struct netbsd32_timespec ts32; 394 struct timespec ts; 395 int error = 0; 396 397 error = clock_getres1(SCARG(uap, clock_id), &ts); 398 if (error != 0) 399 return error; 400 401 if (SCARG_P32(uap, tp)) { 402 netbsd32_from_timespec(&ts, &ts32); 403 error = copyout(&ts32, SCARG_P32(uap, tp), sizeof(ts32)); 404 } 405 406 return error; 407 } 408 409 int 410 netbsd32___nanosleep50(struct lwp *l, const struct netbsd32___nanosleep50_args *uap, register_t *retval) 411 { 412 /* { 413 syscallarg(const netbsd32_timespecp_t) rqtp; 414 syscallarg(netbsd32_timespecp_t) rmtp; 415 } */ 416 struct netbsd32_timespec ts32; 417 struct timespec rqt, rmt; 418 int error, error1; 419 420 error = copyin(SCARG_P32(uap, rqtp), &ts32, sizeof(ts32)); 421 if (error) 422 return (error); 423 netbsd32_to_timespec(&ts32, &rqt); 424 425 error = nanosleep1(l, &rqt, SCARG_P32(uap, rmtp) ? &rmt : NULL); 426 if (SCARG_P32(uap, rmtp) == NULL || (error != 0 && error != EINTR)) 427 return error; 428 429 netbsd32_from_timespec(&rmt, &ts32); 430 error1 = copyout(&ts32, SCARG_P32(uap,rmtp), sizeof(ts32)); 431 return error1 ? error1 : error; 432 } 433 434 static int 435 netbsd32_timer_create_fetch(const void *src, void *dst, size_t size) 436 { 437 struct sigevent *evp = dst; 438 struct netbsd32_sigevent ev32; 439 int error; 440 441 error = copyin(src, &ev32, sizeof(ev32)); 442 if (error) 443 return error; 444 445 netbsd32_to_sigevent(&ev32, evp); 446 return 0; 447 } 448 449 int 450 netbsd32_timer_create(struct lwp *l, const struct netbsd32_timer_create_args *uap, register_t *retval) 451 { 452 /* { 453 syscallarg(netbsd32_clockid_t) clock_id; 454 syscallarg(netbsd32_sigeventp_t) evp; 455 syscallarg(netbsd32_timerp_t) timerid; 456 } */ 457 458 return timer_create1(SCARG_P32(uap, timerid), 459 SCARG(uap, clock_id), SCARG_P32(uap, evp), 460 netbsd32_timer_create_fetch, l); 461 } 462 463 int 464 netbsd32_timer_delete(struct lwp *l, const struct netbsd32_timer_delete_args *uap, register_t *retval) 465 { 466 /* { 467 syscallarg(netbsd32_timer_t) timerid; 468 } */ 469 struct sys_timer_delete_args ua; 470 471 NETBSD32TO64_UAP(timerid); 472 return sys_timer_delete(l, (void *)&ua, retval); 473 } 474 475 int 476 netbsd32___timer_settime50(struct lwp *l, const struct netbsd32___timer_settime50_args *uap, register_t *retval) 477 { 478 /* { 479 syscallarg(netbsd32_timer_t) timerid; 480 syscallarg(int) flags; 481 syscallarg(const netbsd32_itimerspecp_t) value; 482 syscallarg(netbsd32_itimerspecp_t) ovalue; 483 } */ 484 int error; 485 struct itimerspec value, ovalue, *ovp = NULL; 486 struct netbsd32_itimerspec its32; 487 488 if ((error = copyin(SCARG_P32(uap, value), &its32, sizeof(its32))) != 0) 489 return (error); 490 netbsd32_to_timespec(&its32.it_interval, &value.it_interval); 491 netbsd32_to_timespec(&its32.it_value, &value.it_value); 492 493 if (SCARG_P32(uap, ovalue)) 494 ovp = &ovalue; 495 496 if ((error = dotimer_settime(SCARG(uap, timerid), &value, ovp, 497 SCARG(uap, flags), l->l_proc)) != 0) 498 return error; 499 500 if (ovp) { 501 netbsd32_from_timespec(&ovp->it_interval, &its32.it_interval); 502 netbsd32_from_timespec(&ovp->it_value, &its32.it_value); 503 return copyout(&its32, SCARG_P32(uap, ovalue), sizeof(its32)); 504 } 505 return 0; 506 } 507 508 int 509 netbsd32___timer_gettime50(struct lwp *l, const struct netbsd32___timer_gettime50_args *uap, register_t *retval) 510 { 511 /* { 512 syscallarg(netbsd32_timer_t) timerid; 513 syscallarg(netbsd32_itimerspecp_t) value; 514 } */ 515 int error; 516 struct itimerspec its; 517 struct netbsd32_itimerspec its32; 518 519 if ((error = dotimer_gettime(SCARG(uap, timerid), l->l_proc, 520 &its)) != 0) 521 return error; 522 523 netbsd32_from_timespec(&its.it_interval, &its32.it_interval); 524 netbsd32_from_timespec(&its.it_value, &its32.it_value); 525 526 return copyout(&its32, SCARG_P32(uap, value), sizeof(its32)); 527 } 528 529 int 530 netbsd32_timer_getoverrun(struct lwp *l, const struct netbsd32_timer_getoverrun_args *uap, register_t *retval) 531 { 532 /* { 533 syscallarg(netbsd32_timer_t) timerid; 534 } */ 535 struct sys_timer_getoverrun_args ua; 536 537 NETBSD32TO64_UAP(timerid); 538 return sys_timer_getoverrun(l, (void *)&ua, retval); 539 } 540