1 /* $NetBSD: netbsd32_time.c,v 1.37 2010/03/28 22:03:51 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 1.37 2010/03/28 22:03:51 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/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_gettime50(struct lwp *l, 58 const struct netbsd32___ntp_gettime50_args *uap, register_t *retval) 59 { 60 /* { 61 syscallarg(netbsd32_ntptimevalp_t) ntvp; 62 } */ 63 struct netbsd32_ntptimeval ntv32; 64 struct ntptimeval ntv; 65 int error = 0; 66 67 if (SCARG_P32(uap, ntvp)) { 68 ntp_gettime(&ntv); 69 70 ntv32.time.tv_sec = ntv.time.tv_sec; 71 ntv32.time.tv_nsec = ntv.time.tv_nsec; 72 ntv32.maxerror = (netbsd32_long)ntv.maxerror; 73 ntv32.esterror = (netbsd32_long)ntv.esterror; 74 ntv32.tai = (netbsd32_long)ntv.tai; 75 ntv32.time_state = ntv.time_state; 76 error = copyout(&ntv32, SCARG_P32(uap, ntvp), sizeof(ntv32)); 77 } 78 if (!error) { 79 *retval = ntp_timestatus(); 80 } 81 82 return (error); 83 } 84 85 #ifdef COMPAT_50 86 int 87 compat_50_netbsd32_ntp_gettime(struct lwp *l, 88 const struct compat_50_netbsd32_ntp_gettime_args *uap, register_t *retval) 89 { 90 /* { 91 syscallarg(netbsd32_ntptimeval50p_t) ntvp; 92 } */ 93 struct netbsd32_ntptimeval50 ntv32; 94 struct ntptimeval ntv; 95 int error = 0; 96 97 if (SCARG_P32(uap, ntvp)) { 98 ntp_gettime(&ntv); 99 100 ntv32.time.tv_sec = (int32_t)ntv.time.tv_sec; 101 ntv32.time.tv_nsec = ntv.time.tv_nsec; 102 ntv32.maxerror = (netbsd32_long)ntv.maxerror; 103 ntv32.esterror = (netbsd32_long)ntv.esterror; 104 ntv32.tai = (netbsd32_long)ntv.tai; 105 ntv32.time_state = ntv.time_state; 106 error = copyout(&ntv32, SCARG_P32(uap, ntvp), sizeof(ntv32)); 107 } 108 if (!error) { 109 *retval = ntp_timestatus(); 110 } 111 112 return (error); 113 } 114 #endif 115 116 #ifdef COMPAT_30 117 int 118 compat_30_netbsd32_ntp_gettime(struct lwp *l, const struct compat_30_netbsd32_ntp_gettime_args *uap, register_t *retval) 119 { 120 /* { 121 syscallarg(netbsd32_ntptimevalp_t) ntvp; 122 } */ 123 struct netbsd32_ntptimeval30 ntv32; 124 struct ntptimeval ntv; 125 int error = 0; 126 127 if (SCARG_P32(uap, ntvp)) { 128 ntp_gettime(&ntv); 129 130 ntv32.time.tv_sec = ntv.time.tv_sec; 131 ntv32.time.tv_usec = ntv.time.tv_nsec / 1000; 132 ntv32.maxerror = (netbsd32_long)ntv.maxerror; 133 ntv32.esterror = (netbsd32_long)ntv.esterror; 134 error = copyout(&ntv32, SCARG_P32(uap, ntvp), sizeof(ntv32)); 135 } 136 if (!error) { 137 *retval = ntp_timestatus(); 138 } 139 140 return (error); 141 } 142 #endif 143 144 int 145 netbsd32_ntp_adjtime(struct lwp *l, const struct netbsd32_ntp_adjtime_args *uap, register_t *retval) 146 { 147 /* { 148 syscallarg(netbsd32_timexp_t) tp; 149 } */ 150 struct netbsd32_timex ntv32; 151 struct timex ntv; 152 int error = 0; 153 int modes; 154 155 if ((error = copyin(SCARG_P32(uap, tp), &ntv32, sizeof(ntv32)))) 156 return (error); 157 158 netbsd32_to_timex(&ntv32, &ntv); 159 160 /* 161 * Update selected clock variables - only the superuser can 162 * change anything. Note that there is no error checking here on 163 * the assumption the superuser should know what it is doing. 164 */ 165 modes = ntv.modes; 166 if (modes != 0 && (error = kauth_authorize_system(l->l_cred, 167 KAUTH_SYSTEM_TIME, KAUTH_REQ_SYSTEM_TIME_NTPADJTIME, NULL, NULL, 168 NULL))) 169 return (error); 170 171 ntp_adjtime1(&ntv); 172 173 netbsd32_from_timex(&ntv, &ntv32); 174 error = copyout(&ntv32, SCARG_P32(uap, tp), sizeof(ntv32)); 175 if (!error) { 176 *retval = ntp_timestatus(); 177 } 178 return error; 179 } 180 #endif /* NTP */ 181 182 int 183 netbsd32___setitimer50(struct lwp *l, const struct netbsd32___setitimer50_args *uap, register_t *retval) 184 { 185 /* { 186 syscallarg(int) which; 187 syscallarg(const netbsd32_itimervalp_t) itv; 188 syscallarg(netbsd32_itimervalp_t) oitv; 189 } */ 190 struct proc *p = l->l_proc; 191 struct netbsd32_itimerval s32it, *itv32; 192 int which = SCARG(uap, which); 193 struct netbsd32___getitimer50_args getargs; 194 struct itimerval aitv; 195 int error; 196 197 if ((u_int)which > ITIMER_PROF) 198 return (EINVAL); 199 itv32 = SCARG_P32(uap, itv); 200 if (itv32) { 201 if ((error = copyin(itv32, &s32it, sizeof(s32it)))) 202 return (error); 203 netbsd32_to_itimerval(&s32it, &aitv); 204 } 205 if (SCARG_P32(uap, oitv) != 0) { 206 SCARG(&getargs, which) = which; 207 SCARG(&getargs, itv) = SCARG(uap, oitv); 208 if ((error = netbsd32___getitimer50(l, &getargs, retval)) != 0) 209 return (error); 210 } 211 if (itv32 == 0) 212 return 0; 213 214 return dosetitimer(p, which, &aitv); 215 } 216 217 int 218 netbsd32___getitimer50(struct lwp *l, const struct netbsd32___getitimer50_args *uap, register_t *retval) 219 { 220 /* { 221 syscallarg(int) which; 222 syscallarg(netbsd32_itimervalp_t) itv; 223 } */ 224 struct proc *p = l->l_proc; 225 struct netbsd32_itimerval s32it; 226 struct itimerval aitv; 227 int error; 228 229 error = dogetitimer(p, SCARG(uap, which), &aitv); 230 if (error) 231 return error; 232 233 netbsd32_from_itimerval(&aitv, &s32it); 234 return copyout(&s32it, SCARG_P32(uap, itv), sizeof(s32it)); 235 } 236 237 int 238 netbsd32___gettimeofday50(struct lwp *l, const struct netbsd32___gettimeofday50_args *uap, register_t *retval) 239 { 240 /* { 241 syscallarg(netbsd32_timevalp_t) tp; 242 syscallarg(netbsd32_timezonep_t) tzp; 243 } */ 244 struct timeval atv; 245 struct netbsd32_timeval tv32; 246 int error = 0; 247 struct netbsd32_timezone tzfake; 248 249 if (SCARG_P32(uap, tp)) { 250 microtime(&atv); 251 netbsd32_from_timeval(&atv, &tv32); 252 error = copyout(&tv32, SCARG_P32(uap, tp), sizeof(tv32)); 253 if (error) 254 return (error); 255 } 256 if (SCARG_P32(uap, tzp)) { 257 /* 258 * NetBSD has no kernel notion of time zone, so we just 259 * fake up a timezone struct and return it if demanded. 260 */ 261 tzfake.tz_minuteswest = 0; 262 tzfake.tz_dsttime = 0; 263 error = copyout(&tzfake, SCARG_P32(uap, tzp), sizeof(tzfake)); 264 } 265 return (error); 266 } 267 268 int 269 netbsd32___settimeofday50(struct lwp *l, const struct netbsd32___settimeofday50_args *uap, register_t *retval) 270 { 271 /* { 272 syscallarg(const netbsd32_timevalp_t) tv; 273 syscallarg(const netbsd32_timezonep_t) tzp; 274 } */ 275 struct netbsd32_timeval atv32; 276 struct timeval atv; 277 struct timespec ats; 278 int error; 279 struct proc *p = l->l_proc; 280 281 /* Verify all parameters before changing time. */ 282 283 /* 284 * NetBSD has no kernel notion of time zone, and only an 285 * obsolete program would try to set it, so we log a warning. 286 */ 287 if (SCARG_P32(uap, tzp)) 288 printf("pid %d attempted to set the " 289 "(obsolete) kernel time zone\n", p->p_pid); 290 291 if (SCARG_P32(uap, tv) == 0) 292 return 0; 293 294 if ((error = copyin(SCARG_P32(uap, tv), &atv32, sizeof(atv32))) != 0) 295 return error; 296 297 netbsd32_to_timeval(&atv32, &atv); 298 TIMEVAL_TO_TIMESPEC(&atv, &ats); 299 return settime(p, &ats); 300 } 301 302 int 303 netbsd32___adjtime50(struct lwp *l, const struct netbsd32___adjtime50_args *uap, register_t *retval) 304 { 305 /* { 306 syscallarg(const netbsd32_timevalp_t) delta; 307 syscallarg(netbsd32_timevalp_t) olddelta; 308 } */ 309 struct netbsd32_timeval atv; 310 int error; 311 312 extern int time_adjusted; /* in kern_ntptime.c */ 313 extern int64_t time_adjtime; /* in kern_ntptime.c */ 314 315 if ((error = kauth_authorize_system(l->l_cred, 316 KAUTH_SYSTEM_TIME, KAUTH_REQ_SYSTEM_TIME_ADJTIME, NULL, NULL, 317 NULL)) != 0) 318 return (error); 319 320 if (SCARG_P32(uap, olddelta)) { 321 atv.tv_sec = time_adjtime / 1000000; 322 atv.tv_usec = time_adjtime % 1000000; 323 if (atv.tv_usec < 0) { 324 atv.tv_usec += 1000000; 325 atv.tv_sec--; 326 } 327 (void) copyout(&atv, 328 SCARG_P32(uap, olddelta), 329 sizeof(atv)); 330 if (error) 331 return (error); 332 } 333 334 if (SCARG_P32(uap, delta)) { 335 error = copyin(SCARG_P32(uap, delta), &atv, 336 sizeof(struct timeval)); 337 if (error) 338 return (error); 339 340 time_adjtime = (int64_t)atv.tv_sec * 1000000 + atv.tv_usec; 341 342 if (time_adjtime) 343 /* We need to save the system time during shutdown */ 344 time_adjusted |= 1; 345 } 346 347 return (0); 348 } 349 350 int 351 netbsd32___clock_gettime50(struct lwp *l, const struct netbsd32___clock_gettime50_args *uap, register_t *retval) 352 { 353 /* { 354 syscallarg(netbsd32_clockid_t) clock_id; 355 syscallarg(netbsd32_timespecp_t) tp; 356 } */ 357 clockid_t clock_id; 358 struct timespec ats; 359 struct netbsd32_timespec ts32; 360 361 clock_id = SCARG(uap, clock_id); 362 if (clock_id != CLOCK_REALTIME) 363 return (EINVAL); 364 365 nanotime(&ats); 366 netbsd32_from_timespec(&ats, &ts32); 367 368 return copyout(&ts32, SCARG_P32(uap, tp), sizeof(ts32)); 369 } 370 371 int 372 netbsd32___clock_settime50(struct lwp *l, const struct netbsd32___clock_settime50_args *uap, register_t *retval) 373 { 374 /* { 375 syscallarg(netbsd32_clockid_t) clock_id; 376 syscallarg(const netbsd32_timespecp_t) tp; 377 } */ 378 struct netbsd32_timespec ts32; 379 clockid_t clock_id; 380 struct timespec ats; 381 int error; 382 383 clock_id = SCARG(uap, clock_id); 384 if (clock_id != CLOCK_REALTIME) 385 return (EINVAL); 386 387 if ((error = copyin(SCARG_P32(uap, tp), &ts32, sizeof(ts32))) != 0) 388 return (error); 389 390 netbsd32_to_timespec(&ts32, &ats); 391 return settime(l->l_proc, &ats); 392 } 393 394 int 395 netbsd32___clock_getres50(struct lwp *l, const struct netbsd32___clock_getres50_args *uap, register_t *retval) 396 { 397 /* { 398 syscallarg(netbsd32_clockid_t) clock_id; 399 syscallarg(netbsd32_timespecp_t) tp; 400 } */ 401 struct netbsd32_timespec ts32; 402 clockid_t clock_id; 403 struct timespec ts; 404 int error = 0; 405 406 clock_id = SCARG(uap, clock_id); 407 if (clock_id != CLOCK_REALTIME) 408 return (EINVAL); 409 410 if (SCARG_P32(uap, tp)) { 411 ts.tv_sec = 0; 412 ts.tv_nsec = 1000000000 / hz; 413 414 netbsd32_from_timespec(&ts, &ts32); 415 error = copyout(&ts, SCARG_P32(uap, tp), sizeof(ts)); 416 } 417 418 return error; 419 } 420 421 int 422 netbsd32___nanosleep50(struct lwp *l, const struct netbsd32___nanosleep50_args *uap, register_t *retval) 423 { 424 /* { 425 syscallarg(const netbsd32_timespecp_t) rqtp; 426 syscallarg(netbsd32_timespecp_t) rmtp; 427 } */ 428 struct netbsd32_timespec ts32; 429 struct timespec rqt, rmt; 430 int error, error1; 431 432 error = copyin(SCARG_P32(uap, rqtp), &ts32, sizeof(ts32)); 433 if (error) 434 return (error); 435 netbsd32_to_timespec(&ts32, &rqt); 436 437 error = nanosleep1(l, &rqt, SCARG_P32(uap, rmtp) ? &rmt : NULL); 438 if (SCARG_P32(uap, rmtp) == NULL || (error != 0 && error != EINTR)) 439 return error; 440 441 netbsd32_from_timespec(&rmt, &ts32); 442 error1 = copyout(&ts32, SCARG_P32(uap,rmtp), sizeof(ts32)); 443 return error1 ? error1 : error; 444 } 445 446 static int 447 netbsd32_timer_create_fetch(const void *src, void *dst, size_t size) 448 { 449 struct sigevent *evp = dst; 450 struct netbsd32_sigevent ev32; 451 int error; 452 453 error = copyin(src, &ev32, sizeof(ev32)); 454 if (error) 455 return error; 456 457 netbsd32_to_sigevent(&ev32, evp); 458 return 0; 459 } 460 461 int 462 netbsd32_timer_create(struct lwp *l, const struct netbsd32_timer_create_args *uap, register_t *retval) 463 { 464 /* { 465 syscallarg(netbsd32_clockid_t) clock_id; 466 syscallarg(netbsd32_sigeventp_t) evp; 467 syscallarg(netbsd32_timerp_t) timerid; 468 } */ 469 470 return timer_create1(SCARG_P32(uap, timerid), 471 SCARG(uap, clock_id), SCARG_P32(uap, evp), 472 netbsd32_timer_create_fetch, l); 473 } 474 475 int 476 netbsd32_timer_delete(struct lwp *l, const struct netbsd32_timer_delete_args *uap, register_t *retval) 477 { 478 /* { 479 syscallarg(netbsd32_timer_t) timerid; 480 } */ 481 struct sys_timer_delete_args ua; 482 483 NETBSD32TO64_UAP(timerid); 484 return sys_timer_delete(l, (void *)&ua, retval); 485 } 486 487 int 488 netbsd32___timer_settime50(struct lwp *l, const struct netbsd32___timer_settime50_args *uap, register_t *retval) 489 { 490 /* { 491 syscallarg(netbsd32_timer_t) timerid; 492 syscallarg(int) flags; 493 syscallarg(const netbsd32_itimerspecp_t) value; 494 syscallarg(netbsd32_itimerspecp_t) ovalue; 495 } */ 496 int error; 497 struct itimerspec value, ovalue, *ovp = NULL; 498 struct netbsd32_itimerspec its32; 499 500 if ((error = copyin(SCARG_P32(uap, value), &its32, sizeof(its32))) != 0) 501 return (error); 502 netbsd32_to_timespec(&its32.it_interval, &value.it_interval); 503 netbsd32_to_timespec(&its32.it_value, &value.it_value); 504 505 if (SCARG_P32(uap, ovalue)) 506 ovp = &ovalue; 507 508 if ((error = dotimer_settime(SCARG(uap, timerid), &value, ovp, 509 SCARG(uap, flags), l->l_proc)) != 0) 510 return error; 511 512 if (ovp) { 513 netbsd32_from_timespec(&ovp->it_interval, &its32.it_interval); 514 netbsd32_from_timespec(&ovp->it_value, &its32.it_value); 515 return copyout(&its32, SCARG_P32(uap, ovalue), sizeof(its32)); 516 } 517 return 0; 518 } 519 520 int 521 netbsd32___timer_gettime50(struct lwp *l, const struct netbsd32___timer_gettime50_args *uap, register_t *retval) 522 { 523 /* { 524 syscallarg(netbsd32_timer_t) timerid; 525 syscallarg(netbsd32_itimerspecp_t) value; 526 } */ 527 int error; 528 struct itimerspec its; 529 struct netbsd32_itimerspec its32; 530 531 if ((error = dotimer_gettime(SCARG(uap, timerid), l->l_proc, 532 &its)) != 0) 533 return error; 534 535 netbsd32_from_timespec(&its.it_interval, &its32.it_interval); 536 netbsd32_from_timespec(&its.it_value, &its32.it_value); 537 538 return copyout(&its32, SCARG_P32(uap, value), sizeof(its32)); 539 } 540 541 int 542 netbsd32_timer_getoverrun(struct lwp *l, const struct netbsd32_timer_getoverrun_args *uap, register_t *retval) 543 { 544 /* { 545 syscallarg(netbsd32_timer_t) timerid; 546 } */ 547 struct sys_timer_getoverrun_args ua; 548 549 NETBSD32TO64_UAP(timerid); 550 return sys_timer_getoverrun(l, (void *)&ua, retval); 551 } 552