netbsd32_time.c revision 1.32.12.1
1 /* $NetBSD: netbsd32_time.c,v 1.32.12.1 2008/06/23 04:30:55 wrstuden 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 1.32.12.1 2008/06/23 04:30:55 wrstuden 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/timetc.h> 44 #include <sys/proc.h> 45 #include <sys/pool.h> 46 #include <sys/resourcevar.h> 47 #include <sys/dirent.h> 48 #include <sys/kauth.h> 49 50 #include <compat/netbsd32/netbsd32.h> 51 #include <compat/netbsd32/netbsd32_syscallargs.h> 52 #include <compat/netbsd32/netbsd32_conv.h> 53 54 #ifdef NTP 55 56 int 57 netbsd32_ntp_gettime(struct lwp *l, const struct netbsd32_ntp_gettime_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_30 85 int 86 compat_30_netbsd32_ntp_gettime(struct lwp *l, const struct compat_30_netbsd32_ntp_gettime_args *uap, register_t *retval) 87 { 88 /* { 89 syscallarg(netbsd32_ntptimevalp_t) ntvp; 90 } */ 91 struct netbsd32_ntptimeval30 ntv32; 92 struct ntptimeval ntv; 93 int error = 0; 94 95 if (SCARG_P32(uap, ntvp)) { 96 ntp_gettime(&ntv); 97 98 ntv32.time.tv_sec = ntv.time.tv_sec; 99 ntv32.time.tv_usec = ntv.time.tv_nsec / 1000; 100 ntv32.maxerror = (netbsd32_long)ntv.maxerror; 101 ntv32.esterror = (netbsd32_long)ntv.esterror; 102 error = copyout(&ntv32, SCARG_P32(uap, ntvp), sizeof(ntv32)); 103 } 104 if (!error) { 105 *retval = ntp_timestatus(); 106 } 107 108 return (error); 109 } 110 #endif 111 112 int 113 netbsd32_ntp_adjtime(struct lwp *l, const struct netbsd32_ntp_adjtime_args *uap, register_t *retval) 114 { 115 /* { 116 syscallarg(netbsd32_timexp_t) tp; 117 } */ 118 struct netbsd32_timex ntv32; 119 struct timex ntv; 120 int error = 0; 121 int modes; 122 123 if ((error = copyin(SCARG_P32(uap, tp), &ntv32, sizeof(ntv32)))) 124 return (error); 125 126 netbsd32_to_timex(&ntv32, &ntv); 127 128 /* 129 * Update selected clock variables - only the superuser can 130 * change anything. Note that there is no error checking here on 131 * the assumption the superuser should know what it is doing. 132 */ 133 modes = ntv.modes; 134 if (modes != 0 && (error = kauth_authorize_system(l->l_cred, 135 KAUTH_SYSTEM_TIME, KAUTH_REQ_SYSTEM_TIME_NTPADJTIME, NULL, NULL, 136 NULL))) 137 return (error); 138 139 ntp_adjtime1(&ntv); 140 141 netbsd32_from_timex(&ntv, &ntv32); 142 error = copyout(&ntv32, SCARG_P32(uap, tp), sizeof(ntv32)); 143 if (!error) { 144 *retval = ntp_timestatus(); 145 } 146 return error; 147 } 148 #else /* !NTP */ 149 int 150 netbsd32_ntp_gettime(struct lwp *l, const struct netbsd32_ntp_gettime_args *uap, register_t *retval) 151 { 152 153 return (ENOSYS); 154 } 155 156 #ifdef COMPAT_30 157 int 158 compat_30_netbsd32_ntp_gettime(struct lwp *l, const struct compat_30_netbsd32_ntp_gettime_args *uap, register_t *retval) 159 { 160 161 return (ENOSYS); 162 } 163 #endif 164 165 int 166 netbsd32_ntp_adjtime(struct lwp *l, const struct netbsd32_ntp_adjtime_args *uap, register_t *retval) 167 { 168 169 return (ENOSYS); 170 } 171 #endif /* NTP */ 172 173 int 174 netbsd32_setitimer(struct lwp *l, const struct netbsd32_setitimer_args *uap, register_t *retval) 175 { 176 /* { 177 syscallarg(int) which; 178 syscallarg(const netbsd32_itimervalp_t) itv; 179 syscallarg(netbsd32_itimervalp_t) oitv; 180 } */ 181 struct proc *p = l->l_proc; 182 struct netbsd32_itimerval s32it, *itv32; 183 int which = SCARG(uap, which); 184 struct netbsd32_getitimer_args getargs; 185 struct itimerval aitv; 186 int error; 187 188 if ((u_int)which > ITIMER_PROF) 189 return (EINVAL); 190 itv32 = SCARG_P32(uap, itv); 191 if (itv32) { 192 if ((error = copyin(itv32, &s32it, sizeof(s32it)))) 193 return (error); 194 netbsd32_to_itimerval(&s32it, &aitv); 195 } 196 if (SCARG_P32(uap, oitv) != 0) { 197 SCARG(&getargs, which) = which; 198 SCARG(&getargs, itv) = SCARG(uap, oitv); 199 if ((error = netbsd32_getitimer(l, &getargs, retval)) != 0) 200 return (error); 201 } 202 if (itv32 == 0) 203 return 0; 204 205 return dosetitimer(p, which, &aitv); 206 } 207 208 int 209 netbsd32_getitimer(struct lwp *l, const struct netbsd32_getitimer_args *uap, register_t *retval) 210 { 211 /* { 212 syscallarg(int) which; 213 syscallarg(netbsd32_itimervalp_t) itv; 214 } */ 215 struct proc *p = l->l_proc; 216 struct netbsd32_itimerval s32it; 217 struct itimerval aitv; 218 int error; 219 220 error = dogetitimer(p, SCARG(uap, which), &aitv); 221 if (error) 222 return error; 223 224 netbsd32_from_itimerval(&aitv, &s32it); 225 return copyout(&s32it, SCARG_P32(uap, itv), sizeof(s32it)); 226 } 227 228 int 229 netbsd32_gettimeofday(struct lwp *l, const struct netbsd32_gettimeofday_args *uap, register_t *retval) 230 { 231 /* { 232 syscallarg(netbsd32_timevalp_t) tp; 233 syscallarg(netbsd32_timezonep_t) tzp; 234 } */ 235 struct timeval atv; 236 struct netbsd32_timeval tv32; 237 int error = 0; 238 struct netbsd32_timezone tzfake; 239 240 if (SCARG_P32(uap, tp)) { 241 microtime(&atv); 242 netbsd32_from_timeval(&atv, &tv32); 243 error = copyout(&tv32, SCARG_P32(uap, tp), sizeof(tv32)); 244 if (error) 245 return (error); 246 } 247 if (SCARG_P32(uap, tzp)) { 248 /* 249 * NetBSD has no kernel notion of time zone, so we just 250 * fake up a timezone struct and return it if demanded. 251 */ 252 tzfake.tz_minuteswest = 0; 253 tzfake.tz_dsttime = 0; 254 error = copyout(&tzfake, SCARG_P32(uap, tzp), sizeof(tzfake)); 255 } 256 return (error); 257 } 258 259 int 260 netbsd32_settimeofday(struct lwp *l, const struct netbsd32_settimeofday_args *uap, register_t *retval) 261 { 262 /* { 263 syscallarg(const netbsd32_timevalp_t) tv; 264 syscallarg(const netbsd32_timezonep_t) tzp; 265 } */ 266 struct netbsd32_timeval atv32; 267 struct timeval atv; 268 struct timespec ats; 269 int error; 270 struct proc *p = l->l_proc; 271 272 /* Verify all parameters before changing time. */ 273 274 /* 275 * NetBSD has no kernel notion of time zone, and only an 276 * obsolete program would try to set it, so we log a warning. 277 */ 278 if (SCARG_P32(uap, tzp)) 279 printf("pid %d attempted to set the " 280 "(obsolete) kernel time zone\n", p->p_pid); 281 282 if (SCARG_P32(uap, tv) == 0) 283 return 0; 284 285 if ((error = copyin(SCARG_P32(uap, tv), &atv32, sizeof(atv32))) != 0) 286 return error; 287 288 netbsd32_to_timeval(&atv32, &atv); 289 TIMEVAL_TO_TIMESPEC(&atv, &ats); 290 return settime(p, &ats); 291 } 292 293 int 294 netbsd32_adjtime(struct lwp *l, const struct netbsd32_adjtime_args *uap, register_t *retval) 295 { 296 /* { 297 syscallarg(const netbsd32_timevalp_t) delta; 298 syscallarg(netbsd32_timevalp_t) olddelta; 299 } */ 300 struct netbsd32_timeval atv; 301 int error; 302 303 extern int time_adjusted; /* in kern_ntptime.c */ 304 extern int64_t time_adjtime; /* in kern_ntptime.c */ 305 306 if ((error = kauth_authorize_system(l->l_cred, 307 KAUTH_SYSTEM_TIME, KAUTH_REQ_SYSTEM_TIME_ADJTIME, NULL, NULL, 308 NULL)) != 0) 309 return (error); 310 311 if (SCARG_P32(uap, olddelta)) { 312 atv.tv_sec = time_adjtime / 1000000; 313 atv.tv_usec = time_adjtime % 1000000; 314 if (atv.tv_usec < 0) { 315 atv.tv_usec += 1000000; 316 atv.tv_sec--; 317 } 318 (void) copyout(&atv, 319 SCARG_P32(uap, olddelta), 320 sizeof(atv)); 321 if (error) 322 return (error); 323 } 324 325 if (SCARG_P32(uap, delta)) { 326 error = copyin(SCARG_P32(uap, delta), &atv, 327 sizeof(struct timeval)); 328 if (error) 329 return (error); 330 331 time_adjtime = (int64_t)atv.tv_sec * 1000000 + atv.tv_usec; 332 333 if (time_adjtime) 334 /* We need to save the system time during shutdown */ 335 time_adjusted |= 1; 336 } 337 338 return (0); 339 } 340 341 int 342 netbsd32_clock_gettime(struct lwp *l, const struct netbsd32_clock_gettime_args *uap, register_t *retval) 343 { 344 /* { 345 syscallarg(netbsd32_clockid_t) clock_id; 346 syscallarg(netbsd32_timespecp_t) tp; 347 } */ 348 clockid_t clock_id; 349 struct timespec ats; 350 struct netbsd32_timespec ts32; 351 352 clock_id = SCARG(uap, clock_id); 353 if (clock_id != CLOCK_REALTIME) 354 return (EINVAL); 355 356 nanotime(&ats); 357 netbsd32_from_timespec(&ats, &ts32); 358 359 return copyout(&ts32, SCARG_P32(uap, tp), sizeof(ts32)); 360 } 361 362 int 363 netbsd32_clock_settime(struct lwp *l, const struct netbsd32_clock_settime_args *uap, register_t *retval) 364 { 365 /* { 366 syscallarg(netbsd32_clockid_t) clock_id; 367 syscallarg(const netbsd32_timespecp_t) tp; 368 } */ 369 struct netbsd32_timespec ts32; 370 clockid_t clock_id; 371 struct timespec ats; 372 int error; 373 374 clock_id = SCARG(uap, clock_id); 375 if (clock_id != CLOCK_REALTIME) 376 return (EINVAL); 377 378 if ((error = copyin(SCARG_P32(uap, tp), &ts32, sizeof(ts32))) != 0) 379 return (error); 380 381 netbsd32_to_timespec(&ts32, &ats); 382 return settime(l->l_proc, &ats); 383 } 384 385 int 386 netbsd32_clock_getres(struct lwp *l, const struct netbsd32_clock_getres_args *uap, register_t *retval) 387 { 388 /* { 389 syscallarg(netbsd32_clockid_t) clock_id; 390 syscallarg(netbsd32_timespecp_t) tp; 391 } */ 392 struct netbsd32_timespec ts32; 393 clockid_t clock_id; 394 struct timespec ts; 395 int error = 0; 396 397 clock_id = SCARG(uap, clock_id); 398 if (clock_id != CLOCK_REALTIME) 399 return (EINVAL); 400 401 if (SCARG_P32(uap, tp)) { 402 ts.tv_sec = 0; 403 ts.tv_nsec = 1000000000 / hz; 404 405 netbsd32_from_timespec(&ts, &ts32); 406 error = copyout(&ts, SCARG_P32(uap, tp), sizeof(ts)); 407 } 408 409 return error; 410 } 411 412 int 413 netbsd32_nanosleep(struct lwp *l, const struct netbsd32_nanosleep_args *uap, register_t *retval) 414 { 415 /* { 416 syscallarg(const netbsd32_timespecp_t) rqtp; 417 syscallarg(netbsd32_timespecp_t) rmtp; 418 } */ 419 static int nanowait; 420 struct netbsd32_timespec ts32; 421 struct timespec rqt; 422 struct timespec rmt; 423 struct timeval atv, utv, ctime; 424 int error, timo; 425 426 error = copyin(SCARG_P32(uap, rqtp), &ts32, sizeof(ts32)); 427 if (error) 428 return (error); 429 430 netbsd32_to_timespec(&ts32, &rqt); 431 TIMESPEC_TO_TIMEVAL(&atv,&rqt); 432 if (itimerfix(&atv)) 433 return (EINVAL); 434 435 getmicrotime(&ctime); 436 timeradd(&atv,&ctime,&atv); 437 timo = hzto(&atv); 438 /* 439 * Avoid inadvertantly sleeping forever 440 */ 441 if (timo == 0) 442 timo = 1; 443 444 error = tsleep(&nanowait, PWAIT | PCATCH, "nanosleep", timo); 445 if (error == ERESTART) 446 error = EINTR; 447 if (error == EWOULDBLOCK) 448 error = 0; 449 450 if (SCARG_P32(uap, rmtp)) { 451 int error1; 452 453 getmicrotime(&utv); 454 455 timersub(&atv, &utv, &utv); 456 if (utv.tv_sec < 0) 457 timerclear(&utv); 458 459 TIMEVAL_TO_TIMESPEC(&utv,&rmt); 460 netbsd32_from_timespec(&rmt, &ts32); 461 error1 = copyout(&ts32, SCARG_P32(uap,rmtp), sizeof(ts32)); 462 if (error1) 463 return (error1); 464 } 465 466 return error; 467 } 468 469 static int 470 netbsd32_timer_create_fetch(const void *src, void *dst, size_t size) 471 { 472 struct sigevent *evp = dst; 473 struct netbsd32_sigevent ev32; 474 int error; 475 476 error = copyin(src, &ev32, sizeof(ev32)); 477 if (error) 478 return error; 479 480 netbsd32_to_sigevent(&ev32, evp); 481 return 0; 482 } 483 484 int 485 netbsd32_timer_create(struct lwp *l, const struct netbsd32_timer_create_args *uap, register_t *retval) 486 { 487 /* { 488 syscallarg(netbsd32_clockid_t) clock_id; 489 syscallarg(netbsd32_sigeventp_t) evp; 490 syscallarg(netbsd32_timerp_t) timerid; 491 } */ 492 493 return timer_create1(SCARG_P32(uap, timerid), 494 SCARG(uap, clock_id), SCARG_P32(uap, evp), 495 netbsd32_timer_create_fetch, l); 496 } 497 498 int 499 netbsd32_timer_delete(struct lwp *l, const struct netbsd32_timer_delete_args *uap, register_t *retval) 500 { 501 /* { 502 syscallarg(netbsd32_timer_t) timerid; 503 } */ 504 struct sys_timer_delete_args ua; 505 506 NETBSD32TO64_UAP(timerid); 507 return sys_timer_delete(l, (void *)&ua, retval); 508 } 509 510 int 511 netbsd32_timer_settime(struct lwp *l, const struct netbsd32_timer_settime_args *uap, register_t *retval) 512 { 513 /* { 514 syscallarg(netbsd32_timer_t) timerid; 515 syscallarg(int) flags; 516 syscallarg(const netbsd32_itimerspecp_t) value; 517 syscallarg(netbsd32_itimerspecp_t) ovalue; 518 } */ 519 int error; 520 struct itimerspec value, ovalue, *ovp = NULL; 521 struct netbsd32_itimerspec its32; 522 523 if ((error = copyin(SCARG_P32(uap, value), &its32, sizeof(its32))) != 0) 524 return (error); 525 netbsd32_to_timespec(&its32.it_interval, &value.it_interval); 526 netbsd32_to_timespec(&its32.it_value, &value.it_value); 527 528 if (SCARG_P32(uap, ovalue)) 529 ovp = &ovalue; 530 531 if ((error = dotimer_settime(SCARG(uap, timerid), &value, ovp, 532 SCARG(uap, flags), l->l_proc)) != 0) 533 return error; 534 535 if (ovp) { 536 netbsd32_from_timespec(&ovp->it_interval, &its32.it_interval); 537 netbsd32_from_timespec(&ovp->it_value, &its32.it_value); 538 return copyout(&its32, SCARG_P32(uap, ovalue), sizeof(its32)); 539 } 540 return 0; 541 } 542 543 int 544 netbsd32_timer_gettime(struct lwp *l, const struct netbsd32_timer_gettime_args *uap, register_t *retval) 545 { 546 /* { 547 syscallarg(netbsd32_timer_t) timerid; 548 syscallarg(netbsd32_itimerspecp_t) value; 549 } */ 550 int error; 551 struct itimerspec its; 552 struct netbsd32_itimerspec its32; 553 554 if ((error = dotimer_gettime(SCARG(uap, timerid), l->l_proc, 555 &its)) != 0) 556 return error; 557 558 netbsd32_from_timespec(&its.it_interval, &its32.it_interval); 559 netbsd32_from_timespec(&its.it_value, &its32.it_value); 560 561 return copyout(&its32, SCARG_P32(uap, value), sizeof(its32)); 562 } 563 564 int 565 netbsd32_timer_getoverrun(struct lwp *l, const struct netbsd32_timer_getoverrun_args *uap, register_t *retval) 566 { 567 /* { 568 syscallarg(netbsd32_timer_t) timerid; 569 } */ 570 struct sys_timer_getoverrun_args ua; 571 572 NETBSD32TO64_UAP(timerid); 573 return sys_timer_getoverrun(l, (void *)&ua, retval); 574 } 575
Indexes created Sat Sep 27 14:09:57 GMT 2025