Home | History | Annotate | Line # | Download | only in netbsd32
netbsd32_compat_50.c revision 1.23
      1 /*	$NetBSD: netbsd32_compat_50.c,v 1.23 2013/03/29 01:04:30 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Christos Zoulas.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 #include <sys/cdefs.h>
     39 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_50.c,v 1.23 2013/03/29 01:04:30 christos Exp $");
     40 
     41 #if defined(_KERNEL_OPT)
     42 #include "opt_sysv.h"
     43 #endif
     44 
     45 #include <sys/param.h>
     46 #include <sys/systm.h>
     47 #include <sys/mount.h>
     48 #include <sys/socket.h>
     49 #include <sys/socketvar.h>
     50 #include <sys/stat.h>
     51 #include <sys/time.h>
     52 #include <sys/ktrace.h>
     53 #include <sys/eventvar.h>
     54 #include <sys/resourcevar.h>
     55 #include <sys/vnode.h>
     56 #include <sys/file.h>
     57 #include <sys/filedesc.h>
     58 #include <sys/poll.h>
     59 #include <sys/namei.h>
     60 #include <sys/statvfs.h>
     61 #include <sys/syscallargs.h>
     62 #include <sys/proc.h>
     63 #include <sys/dirent.h>
     64 #include <sys/kauth.h>
     65 #include <sys/vfs_syscalls.h>
     66 #include <sys/ipc.h>
     67 #include <sys/msg.h>
     68 #include <sys/sem.h>
     69 #include <sys/shm.h>
     70 
     71 #include <compat/netbsd32/netbsd32.h>
     72 #include <compat/netbsd32/netbsd32_syscallargs.h>
     73 #include <compat/netbsd32/netbsd32_conv.h>
     74 #include <compat/sys/mount.h>
     75 #include <compat/sys/time.h>
     76 
     77 
     78 /*
     79  * Common routine to set access and modification times given a vnode.
     80  */
     81 static int
     82 get_utimes32(const netbsd32_timeval50p_t *tptr, struct timeval *tv,
     83     struct timeval **tvp)
     84 {
     85 	int error;
     86 	struct netbsd32_timeval50 tv32[2];
     87 
     88 	if (tptr == NULL) {
     89 		*tvp = NULL;
     90 		return 0;
     91 	}
     92 
     93 	error = copyin(tptr, tv32, sizeof(tv32));
     94 	if (error)
     95 		return error;
     96 	netbsd32_to_timeval50(&tv32[0], &tv[0]);
     97 	netbsd32_to_timeval50(&tv32[1], &tv[1]);
     98 
     99 	*tvp = tv;
    100 	return 0;
    101 }
    102 
    103 int
    104 compat_50_netbsd32_mknod(struct lwp *l,
    105     const struct compat_50_netbsd32_mknod_args *uap, register_t *retval)
    106 {
    107 	/* {
    108 		syscallarg(netbsd32_charp) path;
    109 		syscallarg(mode_t) mode;
    110 		syscallarg(uint32_t) dev;
    111 	} */
    112 	return do_sys_mknod(l, SCARG_P32(uap, path), SCARG(uap, mode),
    113 	    SCARG(uap, dev), retval, UIO_USERSPACE);
    114 }
    115 
    116 int
    117 compat_50_netbsd32_select(struct lwp *l,
    118     const struct compat_50_netbsd32_select_args *uap, register_t *retval)
    119 {
    120 	/* {
    121 		syscallarg(int) nd;
    122 		syscallarg(netbsd32_fd_setp_t) in;
    123 		syscallarg(netbsd32_fd_setp_t) ou;
    124 		syscallarg(netbsd32_fd_setp_t) ex;
    125 		syscallarg(netbsd32_timeval50p_t) tv;
    126 	} */
    127 	int error;
    128 	struct netbsd32_timeval50 tv32;
    129 	struct timespec ats, *ts = NULL;
    130 
    131 	if (SCARG_P32(uap, tv)) {
    132 		error = copyin(SCARG_P32(uap, tv), &tv32, sizeof(tv32));
    133 		if (error != 0)
    134 			return error;
    135 		ats.tv_sec = tv32.tv_sec;
    136 		ats.tv_nsec = tv32.tv_usec * 1000;
    137 		ts = &ats;
    138 	}
    139 
    140 	return selcommon(retval, SCARG(uap, nd), SCARG_P32(uap, in),
    141 	    SCARG_P32(uap, ou), SCARG_P32(uap, ex), ts, NULL);
    142 	return 0;
    143 }
    144 
    145 int
    146 compat_50_netbsd32_gettimeofday(struct lwp *l,
    147     const struct compat_50_netbsd32_gettimeofday_args *uap, register_t *retval)
    148 {
    149 	/* {
    150 		syscallarg(netbsd32_timeval50p_t) tp;
    151 		syscallarg(netbsd32_timezonep_t) tzp;
    152 	} */
    153 	struct timeval atv;
    154 	struct netbsd32_timeval50 tv32;
    155 	int error = 0;
    156 	struct netbsd32_timezone tzfake;
    157 
    158 	if (SCARG_P32(uap, tp)) {
    159 		microtime(&atv);
    160 		netbsd32_from_timeval50(&atv, &tv32);
    161 		error = copyout(&tv32, SCARG_P32(uap, tp), sizeof(tv32));
    162 		if (error)
    163 			return error;
    164 	}
    165 	if (SCARG_P32(uap, tzp)) {
    166 		/*
    167 		 * NetBSD has no kernel notion of time zone, so we just
    168 		 * fake up a timezone struct and return it if demanded.
    169 		 */
    170 		tzfake.tz_minuteswest = 0;
    171 		tzfake.tz_dsttime = 0;
    172 		error = copyout(&tzfake, SCARG_P32(uap, tzp), sizeof(tzfake));
    173 	}
    174 	return error;
    175 }
    176 
    177 int
    178 compat_50_netbsd32_settimeofday(struct lwp *l,
    179     const struct compat_50_netbsd32_settimeofday_args *uap, register_t *retval)
    180 {
    181 	/* {
    182 		syscallarg(const netbsd32_timeval50p_t) tv;
    183 		syscallarg(const netbsd32_timezonep_t) tzp;
    184 	} */
    185 	struct netbsd32_timeval50 atv32;
    186 	struct timeval atv;
    187 	struct timespec ats;
    188 	int error;
    189 	struct proc *p = l->l_proc;
    190 
    191 	/* Verify all parameters before changing time. */
    192 
    193 	/*
    194 	 * NetBSD has no kernel notion of time zone, and only an
    195 	 * obsolete program would try to set it, so we log a warning.
    196 	 */
    197 	if (SCARG_P32(uap, tzp))
    198 		printf("pid %d attempted to set the "
    199 		    "(obsolete) kernel time zone\n", p->p_pid);
    200 
    201 	if (SCARG_P32(uap, tv) == 0)
    202 		return 0;
    203 
    204 	if ((error = copyin(SCARG_P32(uap, tv), &atv32, sizeof(atv32))) != 0)
    205 		return error;
    206 
    207 	netbsd32_to_timeval50(&atv32, &atv);
    208 	TIMEVAL_TO_TIMESPEC(&atv, &ats);
    209 	return settime(p, &ats);
    210 }
    211 
    212 int
    213 compat_50_netbsd32_utimes(struct lwp *l,
    214     const struct compat_50_netbsd32_utimes_args *uap, register_t *retval)
    215 {
    216 	/* {
    217 		syscallarg(const netbsd32_charp) path;
    218 		syscallarg(const netbsd32_timeval50p_t) tptr;
    219 	} */
    220 	int error;
    221 	struct timeval tv[2], *tvp;
    222 
    223 	error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
    224 	if (error != 0)
    225 		return error;
    226 
    227 	return do_sys_utimes(l, NULL, SCARG_P32(uap, path), FOLLOW,
    228 	    tvp, UIO_SYSSPACE);
    229 }
    230 
    231 int
    232 compat_50_netbsd32_adjtime(struct lwp *l,
    233     const struct compat_50_netbsd32_adjtime_args *uap, register_t *retval)
    234 {
    235 	/* {
    236 		syscallarg(const netbsd32_timeval50p_t) delta;
    237 		syscallarg(netbsd32_timeval50p_t) olddelta;
    238 	} */
    239 	struct netbsd32_timeval50 atv;
    240 	int error;
    241 
    242 	extern int time_adjusted;     /* in kern_ntptime.c */
    243 	extern int64_t time_adjtime;  /* in kern_ntptime.c */
    244 
    245 	if ((error = kauth_authorize_system(l->l_cred,
    246 	    KAUTH_SYSTEM_TIME, KAUTH_REQ_SYSTEM_TIME_ADJTIME, NULL, NULL,
    247 	    NULL)) != 0)
    248 		return (error);
    249 
    250 	if (SCARG_P32(uap, olddelta)) {
    251 		atv.tv_sec = time_adjtime / 1000000;
    252 		atv.tv_usec = time_adjtime % 1000000;
    253 		if (atv.tv_usec < 0) {
    254 			atv.tv_usec += 1000000;
    255 			atv.tv_sec--;
    256 		}
    257 		(void) copyout(&atv,
    258 			       SCARG_P32(uap, olddelta),
    259 			       sizeof(atv));
    260 		if (error)
    261 			return (error);
    262 	}
    263 
    264 	if (SCARG_P32(uap, delta)) {
    265 		error = copyin(SCARG_P32(uap, delta), &atv,
    266 			       sizeof(struct timeval));
    267 		if (error)
    268 			return (error);
    269 
    270 		time_adjtime = (int64_t)atv.tv_sec * 1000000 + atv.tv_usec;
    271 
    272 		if (time_adjtime)
    273 			/* We need to save the system time during shutdown */
    274 			time_adjusted |= 1;
    275 	}
    276 
    277 	return 0;
    278 }
    279 
    280 int
    281 compat_50_netbsd32_futimes(struct lwp *l,
    282     const struct compat_50_netbsd32_futimes_args *uap, register_t *retval)
    283 {
    284 	/* {
    285 		syscallarg(int) fd;
    286 		syscallarg(const netbsd32_timeval50p_t) tptr;
    287 	} */
    288 	int error;
    289 	file_t *fp;
    290 	struct timeval tv[2], *tvp;
    291 
    292 	error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
    293 	if (error != 0)
    294 		return error;
    295 
    296 	/* fd_getvnode() will use the descriptor for us */
    297 	if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
    298 		return error;
    299 
    300 	error = do_sys_utimes(l, fp->f_data, NULL, 0, tvp, UIO_SYSSPACE);
    301 
    302 	fd_putfile(SCARG(uap, fd));
    303 	return error;
    304 }
    305 
    306 int
    307 compat_50_netbsd32_clock_gettime(struct lwp *l,
    308     const struct compat_50_netbsd32_clock_gettime_args *uap, register_t *retval)
    309 {
    310 	/* {
    311 		syscallarg(netbsd32_clockid_t) clock_id;
    312 		syscallarg(netbsd32_timespec50p_t) tp;
    313 	} */
    314 	int error;
    315 	struct timespec ats;
    316 	struct netbsd32_timespec50 ts32;
    317 
    318 	error = clock_gettime1(SCARG(uap, clock_id), &ats);
    319 	if (error != 0)
    320 		return error;
    321 
    322 	netbsd32_from_timespec50(&ats, &ts32);
    323 	return copyout(&ts32, SCARG_P32(uap, tp), sizeof(ts32));
    324 }
    325 
    326 int
    327 compat_50_netbsd32_clock_settime(struct lwp *l,
    328     const struct compat_50_netbsd32_clock_settime_args *uap, register_t *retval)
    329 {
    330 	/* {
    331 		syscallarg(netbsd32_clockid_t) clock_id;
    332 		syscallarg(const netbsd32_timespec50p_t) tp;
    333 	} */
    334 	struct netbsd32_timespec50 ts32;
    335 	struct timespec ats;
    336 	int error;
    337 
    338 	if ((error = copyin(SCARG_P32(uap, tp), &ts32, sizeof(ts32))) != 0)
    339 		return (error);
    340 
    341 	netbsd32_to_timespec50(&ts32, &ats);
    342 	return clock_settime1(l->l_proc, SCARG(uap, clock_id), &ats, true);
    343 }
    344 
    345 int
    346 compat_50_netbsd32_clock_getres(struct lwp *l,
    347     const struct compat_50_netbsd32_clock_getres_args *uap, register_t *retval)
    348 {
    349 	/* {
    350 		syscallarg(netbsd32_clockid_t) clock_id;
    351 		syscallarg(netbsd32_timespec50p_t) tp;
    352 	} */
    353 	struct netbsd32_timespec50 ts32;
    354 	struct timespec ts;
    355 	int error = 0;
    356 
    357 	error = clock_getres1(SCARG(uap, clock_id), &ts);
    358 	if (error != 0)
    359 		return error;
    360 
    361 	if (SCARG_P32(uap, tp)) {
    362 		netbsd32_from_timespec50(&ts, &ts32);
    363 		error = copyout(&ts32, SCARG_P32(uap, tp), sizeof(ts32));
    364 	}
    365 
    366 	return error;
    367 }
    368 
    369 int
    370 compat_50_netbsd32_timer_settime(struct lwp *l,
    371     const struct compat_50_netbsd32_timer_settime_args *uap, register_t *retval)
    372 {
    373 	/* {
    374 		syscallarg(netbsd32_timer_t) timerid;
    375 		syscallarg(int) flags;
    376 		syscallarg(const netbsd32_itimerspec50p_t) value;
    377 		syscallarg(netbsd32_itimerspec50p_t) ovalue;
    378 	} */
    379 	int error;
    380 	struct itimerspec value, ovalue, *ovp = NULL;
    381 	struct netbsd32_itimerspec50 its32;
    382 
    383 	if ((error = copyin(SCARG_P32(uap, value), &its32, sizeof(its32))) != 0)
    384 		return (error);
    385 	netbsd32_to_timespec50(&its32.it_interval, &value.it_interval);
    386 	netbsd32_to_timespec50(&its32.it_value, &value.it_value);
    387 
    388 	if (SCARG_P32(uap, ovalue))
    389 		ovp = &ovalue;
    390 
    391 	if ((error = dotimer_settime(SCARG(uap, timerid), &value, ovp,
    392 	    SCARG(uap, flags), l->l_proc)) != 0)
    393 		return error;
    394 
    395 	if (ovp) {
    396 		netbsd32_from_timespec50(&ovp->it_interval, &its32.it_interval);
    397 		netbsd32_from_timespec50(&ovp->it_value, &its32.it_value);
    398 		return copyout(&its32, SCARG_P32(uap, ovalue), sizeof(its32));
    399 	}
    400 	return 0;
    401 }
    402 
    403 int
    404 compat_50_netbsd32_timer_gettime(struct lwp *l, const struct compat_50_netbsd32_timer_gettime_args *uap, register_t *retval)
    405 {
    406 	/* {
    407 		syscallarg(netbsd32_timer_t) timerid;
    408 		syscallarg(netbsd32_itimerspec50p_t) value;
    409 	} */
    410 	int error;
    411 	struct itimerspec its;
    412 	struct netbsd32_itimerspec50 its32;
    413 
    414 	if ((error = dotimer_gettime(SCARG(uap, timerid), l->l_proc,
    415 	    &its)) != 0)
    416 		return error;
    417 
    418 	netbsd32_from_timespec50(&its.it_interval, &its32.it_interval);
    419 	netbsd32_from_timespec50(&its.it_value, &its32.it_value);
    420 
    421 	return copyout(&its32, SCARG_P32(uap, value), sizeof(its32));
    422 }
    423 
    424 int
    425 compat_50_netbsd32_nanosleep(struct lwp *l,
    426     const struct compat_50_netbsd32_nanosleep_args *uap, register_t *retval)
    427 {
    428 	/* {
    429 		syscallarg(const netbsd32_timespec50p_t) rqtp;
    430 		syscallarg(netbsd32_timespecp_t) rmtp;
    431 	} */
    432 	struct netbsd32_timespec50 ts32;
    433 	struct timespec rqt, rmt;
    434 	int error, error1;
    435 
    436 	error = copyin(SCARG_P32(uap, rqtp), &ts32, sizeof(ts32));
    437 	if (error)
    438 		return (error);
    439 	netbsd32_to_timespec50(&ts32, &rqt);
    440 
    441 	error = nanosleep1(l, CLOCK_MONOTONIC, 0, &rqt,
    442 	    SCARG_P32(uap, rmtp) ? &rmt : NULL);
    443 	if (SCARG_P32(uap, rmtp) == NULL || (error != 0 && error != EINTR))
    444 		return error;
    445 
    446 	netbsd32_from_timespec50(&rmt, &ts32);
    447 	error1 = copyout(&ts32, SCARG_P32(uap,rmtp), sizeof(ts32));
    448 	return error1 ? error1 : error;
    449 }
    450 
    451 static int
    452 compat_50_netbsd32_sigtimedwait_put_info(const void *src, void *dst, size_t size)
    453 {
    454 	const siginfo_t *info = src;
    455 	siginfo32_t info32;
    456 
    457 	netbsd32_si_to_si32(&info32, info);
    458 
    459 	return copyout(&info32, dst, sizeof(info32));
    460 }
    461 
    462 static int
    463 compat_50_netbsd32_sigtimedwait_fetch_timeout(const void *src, void *dst, size_t size)
    464 {
    465 	struct timespec *ts = dst;
    466 	struct netbsd32_timespec50 ts32;
    467 	int error;
    468 
    469 	error = copyin(src, &ts32, sizeof(ts32));
    470 	if (error)
    471 		return error;
    472 
    473 	netbsd32_to_timespec50(&ts32, ts);
    474 	return 0;
    475 }
    476 
    477 static int
    478 compat_50_netbsd32_sigtimedwait_put_timeout(const void *src, void *dst, size_t size)
    479 {
    480 	const struct timespec *ts = src;
    481 	struct netbsd32_timespec50 ts32;
    482 
    483 	netbsd32_from_timespec50(ts, &ts32);
    484 
    485 	return copyout(&ts32, dst, sizeof(ts32));
    486 }
    487 
    488 int
    489 compat_50_netbsd32___sigtimedwait(struct lwp *l,
    490     const struct compat_50_netbsd32___sigtimedwait_args *uap, register_t *retval)
    491 {
    492 	/* {
    493 		syscallarg(netbsd32_sigsetp_t) set;
    494 		syscallarg(netbsd32_siginfop_t) info;
    495 		syscallarg(netbsd32_timespec50p_t) timeout;
    496 	} */
    497 	struct sys_____sigtimedwait50_args ua;
    498 	int res;
    499 
    500 	NETBSD32TOP_UAP(set, const sigset_t);
    501 	NETBSD32TOP_UAP(info, siginfo_t);
    502 	NETBSD32TOP_UAP(timeout, struct timespec);
    503 
    504 	res = sigtimedwait1(l, &ua, retval,
    505 	    copyin,
    506 	    compat_50_netbsd32_sigtimedwait_put_info,
    507 	    compat_50_netbsd32_sigtimedwait_fetch_timeout,
    508 	    compat_50_netbsd32_sigtimedwait_put_timeout);
    509 	if (!res)
    510 		*retval = 0; /* XXX NetBSD<=5 was not POSIX compliant */
    511 	return res;
    512 }
    513 
    514 int
    515 compat_50_netbsd32_lutimes(struct lwp *l,
    516     const struct compat_50_netbsd32_lutimes_args *uap, register_t *retval)
    517 {
    518 	/* {
    519 		syscallarg(const netbsd32_charp) path;
    520 		syscallarg(const netbsd32_timeval50p_t) tptr;
    521 	} */
    522 	int error;
    523 	struct timeval tv[2], *tvp;
    524 
    525 	error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
    526 	if (error != 0)
    527 		return error;
    528 
    529 	return do_sys_utimes(l, NULL, SCARG_P32(uap, path), NOFOLLOW,
    530 	    tvp, UIO_SYSSPACE);
    531 }
    532 
    533 int
    534 compat_50_netbsd32__lwp_park(struct lwp *l,
    535     const struct compat_50_netbsd32__lwp_park_args *uap, register_t *retval)
    536 {
    537 	/* {
    538 		syscallarg(const netbsd32_timespec50p) ts;
    539 		syscallarg(lwpid_t) unpark;
    540 		syscallarg(netbsd32_voidp) hint;
    541 		syscallarg(netbsd32_voidp) unparkhint;
    542 	} */
    543 	struct timespec ts, *tsp;
    544 	struct netbsd32_timespec50 ts32;
    545 	int error;
    546 
    547 	if (SCARG_P32(uap, ts) == NULL)
    548 		tsp = NULL;
    549 	else {
    550 		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof ts32);
    551 		if (error != 0)
    552 			return error;
    553 		netbsd32_to_timespec50(&ts32, &ts);
    554 		tsp = &ts;
    555 	}
    556 
    557 	if (SCARG(uap, unpark) != 0) {
    558 		error = lwp_unpark(SCARG(uap, unpark),
    559 		    SCARG_P32(uap, unparkhint));
    560 		if (error != 0)
    561 			return error;
    562 	}
    563 
    564 	return lwp_park(CLOCK_REALTIME, TIMER_ABSTIME, tsp,
    565 	    SCARG_P32(uap, hint));
    566 	return 0;
    567 }
    568 
    569 static int
    570 netbsd32_kevent_fetch_timeout(const void *src, void *dest, size_t length)
    571 {
    572 	struct netbsd32_timespec50 ts32;
    573 	int error;
    574 
    575 	KASSERT(length == sizeof(struct timespec50));
    576 
    577 	error = copyin(src, &ts32, sizeof(ts32));
    578 	if (error)
    579 		return error;
    580 	netbsd32_to_timespec50(&ts32, (struct timespec *)dest);
    581 	return 0;
    582 }
    583 
    584 static int
    585 netbsd32_kevent_fetch_changes(void *private, const struct kevent *changelist,
    586     struct kevent *changes, size_t index, int n)
    587 {
    588 	const struct netbsd32_kevent *src =
    589 	    (const struct netbsd32_kevent *)changelist;
    590 	struct netbsd32_kevent *kev32, *changes32 = private;
    591 	int error, i;
    592 
    593 	error = copyin(src + index, changes32, n * sizeof(*changes32));
    594 	if (error)
    595 		return error;
    596 	for (i = 0, kev32 = changes32; i < n; i++, kev32++, changes++)
    597 		netbsd32_to_kevent(kev32, changes);
    598 	return 0;
    599 }
    600 
    601 static int
    602 netbsd32_kevent_put_events(void *private, struct kevent *events,
    603     struct kevent *eventlist, size_t index, int n)
    604 {
    605 	struct netbsd32_kevent *kev32, *events32 = private;
    606 	int i;
    607 
    608 	for (i = 0, kev32 = events32; i < n; i++, kev32++, events++)
    609 		netbsd32_from_kevent(events, kev32);
    610 	kev32 = (struct netbsd32_kevent *)eventlist;
    611 	return  copyout(events32, kev32, n * sizeof(*events32));
    612 }
    613 
    614 int
    615 compat_50_netbsd32_kevent(struct lwp *l,
    616     const struct compat_50_netbsd32_kevent_args *uap, register_t *retval)
    617 {
    618 	/* {
    619 		syscallarg(int) fd;
    620 		syscallarg(netbsd32_keventp_t) changelist;
    621 		syscallarg(netbsd32_size_t) nchanges;
    622 		syscallarg(netbsd32_keventp_t) eventlist;
    623 		syscallarg(netbsd32_size_t) nevents;
    624 		syscallarg(netbsd32_timespec50p_t) timeout;
    625 	} */
    626 	int error;
    627 	size_t maxalloc, nchanges, nevents;
    628 	struct kevent_ops netbsd32_kevent_ops = {
    629 		.keo_fetch_timeout = netbsd32_kevent_fetch_timeout,
    630 		.keo_fetch_changes = netbsd32_kevent_fetch_changes,
    631 		.keo_put_events = netbsd32_kevent_put_events,
    632 	};
    633 
    634 	nchanges = SCARG(uap, nchanges);
    635 	nevents = SCARG(uap, nevents);
    636 	maxalloc = MIN(KQ_NEVENTS, MAX(nchanges, nevents));
    637 	netbsd32_kevent_ops.keo_private =
    638 	    kmem_alloc(maxalloc * sizeof(struct netbsd32_kevent), KM_SLEEP);
    639 
    640 	error = kevent1(retval, SCARG(uap, fd),
    641 	    NETBSD32PTR64(SCARG(uap, changelist)), nchanges,
    642 	    NETBSD32PTR64(SCARG(uap, eventlist)), nevents,
    643 	    NETBSD32PTR64(SCARG(uap, timeout)), &netbsd32_kevent_ops);
    644 
    645 	kmem_free(netbsd32_kevent_ops.keo_private,
    646 	    maxalloc * sizeof(struct netbsd32_kevent));
    647 	return error;
    648 }
    649 
    650 int
    651 compat_50_netbsd32_pselect(struct lwp *l,
    652     const struct compat_50_netbsd32_pselect_args *uap, register_t *retval)
    653 {
    654 	/* {
    655 		syscallarg(int) nd;
    656 		syscallarg(netbsd32_fd_setp_t) in;
    657 		syscallarg(netbsd32_fd_setp_t) ou;
    658 		syscallarg(netbsd32_fd_setp_t) ex;
    659 		syscallarg(const netbsd32_timespec50p_t) ts;
    660 		syscallarg(const netbsd32_sigsetp_t) mask;
    661 	} */
    662 	int error;
    663 	struct netbsd32_timespec50 ts32;
    664 	struct timespec ats, *ts = NULL;
    665 	sigset_t amask, *mask = NULL;
    666 
    667 	if (SCARG_P32(uap, ts)) {
    668 		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof(ts32));
    669 		if (error != 0)
    670 			return error;
    671 		netbsd32_to_timespec50(&ts32, &ats);
    672 		ts = &ats;
    673 	}
    674 	if (SCARG_P32(uap, mask)) {
    675 		error = copyin(SCARG_P32(uap, mask), &amask, sizeof(amask));
    676 		if (error != 0)
    677 			return error;
    678 		mask = &amask;
    679 	}
    680 
    681 	return selcommon(retval, SCARG(uap, nd), SCARG_P32(uap, in),
    682 	    SCARG_P32(uap, ou), SCARG_P32(uap, ex), ts, mask);
    683 	return 0;
    684 }
    685 
    686 int
    687 compat_50_netbsd32_pollts(struct lwp *l,
    688     const struct compat_50_netbsd32_pollts_args *uap, register_t *retval)
    689 {
    690 	/* {
    691 		syscallarg(struct netbsd32_pollfdp_t) fds;
    692 		syscallarg(u_int) nfds;
    693 		syscallarg(const netbsd32_timespec50p_t) ts;
    694 		syscallarg(const netbsd32_sigsetp_t) mask;
    695 	} */
    696 	int error;
    697 	struct netbsd32_timespec50 ts32;
    698 	struct timespec ats, *ts = NULL;
    699 	sigset_t amask, *mask = NULL;
    700 
    701 	if (SCARG_P32(uap, ts)) {
    702 		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof(ts32));
    703 		if (error != 0)
    704 			return error;
    705 		netbsd32_to_timespec50(&ts32, &ats);
    706 		ts = &ats;
    707 	}
    708 	if (NETBSD32PTR64( SCARG(uap, mask))) {
    709 		error = copyin(SCARG_P32(uap, mask), &amask, sizeof(amask));
    710 		if (error != 0)
    711 			return error;
    712 		mask = &amask;
    713 	}
    714 
    715 	return pollcommon(retval, SCARG_P32(uap, fds),
    716 	    SCARG(uap, nfds), ts, mask);
    717 }
    718 
    719 int
    720 compat_50_netbsd32___stat30(struct lwp *l,
    721     const struct compat_50_netbsd32___stat30_args *uap, register_t *retval)
    722 {
    723 	/* {
    724 		syscallarg(const netbsd32_charp) path;
    725 		syscallarg(netbsd32_stat50p_t) ub;
    726 	} */
    727 	struct netbsd32_stat50 sb32;
    728 	struct stat sb;
    729 	int error;
    730 	const char *path;
    731 
    732 	path = SCARG_P32(uap, path);
    733 
    734 	error = do_sys_stat(path, FOLLOW, &sb);
    735 	if (error)
    736 		return error;
    737 	netbsd32_from___stat50(&sb, &sb32);
    738 	error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32));
    739 	return error;
    740 }
    741 
    742 int
    743 compat_50_netbsd32___fstat30(struct lwp *l,
    744     const struct compat_50_netbsd32___fstat30_args *uap, register_t *retval)
    745 {
    746 	/* {
    747 		syscallarg(int) fd;
    748 		syscallarg(netbsd32_stat50p_t) sb;
    749 	} */
    750 	struct netbsd32_stat50 sb32;
    751 	struct stat ub;
    752 	int error;
    753 
    754 	error = do_sys_fstat(SCARG(uap, fd), &ub);
    755 	if (error == 0) {
    756 		netbsd32_from___stat50(&ub, &sb32);
    757 		error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32));
    758 	}
    759 	return error;
    760 }
    761 
    762 int
    763 compat_50_netbsd32___lstat30(struct lwp *l,
    764     const struct compat_50_netbsd32___lstat30_args *uap, register_t *retval)
    765 {
    766 	/* {
    767 		syscallarg(const netbsd32_charp) path;
    768 		syscallarg(netbsd32_stat50p_t) ub;
    769 	} */
    770 	struct netbsd32_stat50 sb32;
    771 	struct stat sb;
    772 	int error;
    773 	const char *path;
    774 
    775 	path = SCARG_P32(uap, path);
    776 
    777 	error = do_sys_stat(path, NOFOLLOW, &sb);
    778 	if (error)
    779 		return error;
    780 	netbsd32_from___stat50(&sb, &sb32);
    781 	error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32));
    782 	return error;
    783 }
    784 
    785 int
    786 compat_50_netbsd32___fhstat40(struct lwp *l, const struct compat_50_netbsd32___fhstat40_args *uap, register_t *retval)
    787 {
    788 	/* {
    789 		syscallarg(const netbsd32_pointer_t) fhp;
    790 		syscallarg(netbsd32_size_t) fh_size;
    791 		syscallarg(netbsd32_stat50p_t) sb;
    792 	} */
    793 	struct stat sb;
    794 	struct netbsd32_stat50 sb32;
    795 	int error;
    796 
    797 	error = do_fhstat(l, SCARG_P32(uap, fhp), SCARG(uap, fh_size), &sb);
    798 	if (error != 0) {
    799 		netbsd32_from___stat50(&sb, &sb32);
    800 		error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb));
    801 	}
    802 	return error;
    803 }
    804 
    805 int
    806 compat_50_netbsd32_wait4(struct lwp *l, const struct compat_50_netbsd32_wait4_args *uap, register_t *retval)
    807 {
    808 	/* {
    809 		syscallarg(int) pid;
    810 		syscallarg(netbsd32_intp) status;
    811 		syscallarg(int) options;
    812 		syscallarg(netbsd32_rusage50p_t) rusage;
    813 	} */
    814 	int error, status, pid = SCARG(uap, pid);
    815 	struct netbsd32_rusage50 ru32;
    816 	struct rusage ru;
    817 
    818 	error = do_sys_wait(&pid, &status, SCARG(uap, options),
    819 	    SCARG_P32(uap, rusage) != NULL ? &ru : NULL);
    820 
    821 	retval[0] = pid;
    822 	if (pid == 0)
    823 		return error;
    824 
    825 	if (SCARG_P32(uap, rusage)) {
    826 		netbsd32_from_rusage50(&ru, &ru32);
    827 		error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32));
    828 	}
    829 
    830 	if (error == 0 && SCARG_P32(uap, status))
    831 		error = copyout(&status, SCARG_P32(uap, status), sizeof(status));
    832 
    833 	return error;
    834 }
    835 
    836 
    837 int
    838 compat_50_netbsd32_getrusage(struct lwp *l, const struct compat_50_netbsd32_getrusage_args *uap, register_t *retval)
    839 {
    840 	/* {
    841 		syscallarg(int) who;
    842 		syscallarg(netbsd32_rusage50p_t) rusage;
    843 	} */
    844 	int error;
    845 	struct proc *p = l->l_proc;
    846 	struct rusage ru;
    847 	struct netbsd32_rusage50 ru32;
    848 
    849 	error = getrusage1(p, SCARG(uap, who), &ru);
    850 	if (error != 0)
    851 		return error;
    852 
    853 	netbsd32_from_rusage50(&ru, &ru32);
    854 	return copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32));
    855 }
    856 
    857 int
    858 compat_50_netbsd32_setitimer(struct lwp *l,
    859     const struct compat_50_netbsd32_setitimer_args *uap, register_t *retval)
    860 {
    861 	/* {
    862 		syscallarg(int) which;
    863 		syscallarg(const netbsd32_itimerval50p_t) itv;
    864 		syscallarg(netbsd32_itimerval50p_t) oitv;
    865 	} */
    866 	struct proc *p = l->l_proc;
    867 	struct netbsd32_itimerval50 s32it, *itv32;
    868 	int which = SCARG(uap, which);
    869 	struct compat_50_netbsd32_getitimer_args getargs;
    870 	struct itimerval aitv;
    871 	int error;
    872 
    873 	if ((u_int)which > ITIMER_PROF)
    874 		return (EINVAL);
    875 	itv32 = SCARG_P32(uap, itv);
    876 	if (itv32) {
    877 		if ((error = copyin(itv32, &s32it, sizeof(s32it))))
    878 			return (error);
    879 		netbsd32_to_itimerval50(&s32it, &aitv);
    880 	}
    881 	if (SCARG_P32(uap, oitv) != 0) {
    882 		SCARG(&getargs, which) = which;
    883 		SCARG(&getargs, itv) = SCARG(uap, oitv);
    884 		if ((error = compat_50_netbsd32_getitimer(l, &getargs, retval)) != 0)
    885 			return (error);
    886 	}
    887 	if (itv32 == 0)
    888 		return 0;
    889 
    890 	return dosetitimer(p, which, &aitv);
    891 }
    892 
    893 int
    894 compat_50_netbsd32_getitimer(struct lwp *l, const struct compat_50_netbsd32_getitimer_args *uap, register_t *retval)
    895 {
    896 	/* {
    897 		syscallarg(int) which;
    898 		syscallarg(netbsd32_itimerval50p_t) itv;
    899 	} */
    900 	struct proc *p = l->l_proc;
    901 	struct netbsd32_itimerval50 s32it;
    902 	struct itimerval aitv;
    903 	int error;
    904 
    905 	error = dogetitimer(p, SCARG(uap, which), &aitv);
    906 	if (error)
    907 		return error;
    908 
    909 	netbsd32_from_itimerval50(&aitv, &s32it);
    910 	return copyout(&s32it, SCARG_P32(uap, itv), sizeof(s32it));
    911 }
    912 
    913 #if defined(SYSVSEM)
    914 
    915 int
    916 compat_50_netbsd32___semctl14(struct lwp *l, const struct compat_50_netbsd32___semctl14_args *uap, register_t *retval)
    917 {
    918 	return do_netbsd32___semctl14(l, uap, retval, NULL);
    919 }
    920 
    921 int
    922 do_netbsd32___semctl14(struct lwp *l, const struct compat_50_netbsd32___semctl14_args *uap, register_t *retval, void *vkarg)
    923 {
    924 	/* {
    925 		syscallarg(int) semid;
    926 		syscallarg(int) semnum;
    927 		syscallarg(int) cmd;
    928 		syscallarg(netbsd32_semun50p_t) arg;
    929 	} */
    930 	struct semid_ds sembuf;
    931 	struct netbsd32_semid_ds50 sembuf32;
    932 	int cmd, error;
    933 	void *pass_arg;
    934 	union __semun karg;
    935 	union netbsd32_semun50 karg32;
    936 
    937 	cmd = SCARG(uap, cmd);
    938 
    939 	switch (cmd) {
    940 	case IPC_SET:
    941 	case IPC_STAT:
    942 		pass_arg = &sembuf;
    943 		break;
    944 
    945 	case GETALL:
    946 	case SETVAL:
    947 	case SETALL:
    948 		pass_arg = &karg;
    949 		break;
    950 	default:
    951 		pass_arg = NULL;
    952 		break;
    953 	}
    954 
    955 	if (pass_arg) {
    956 		if (vkarg != NULL)
    957 			karg32 = *(union netbsd32_semun50 *)vkarg;
    958 		else {
    959 			error = copyin(SCARG_P32(uap, arg), &karg32,
    960 					sizeof(karg32));
    961 			if (error)
    962 				return error;
    963 		}
    964 		if (pass_arg == &karg) {
    965 			switch (cmd) {
    966 			case GETALL:
    967 			case SETALL:
    968 				karg.array = NETBSD32PTR64(karg32.array);
    969 				break;
    970 			case SETVAL:
    971 				karg.val = karg32.val;
    972 				break;
    973 			}
    974 		}
    975 		if (cmd == IPC_SET) {
    976 			error = copyin(NETBSD32PTR64(karg32.buf), &sembuf32,
    977 			    sizeof(sembuf32));
    978 			if (error)
    979 				return (error);
    980 			netbsd32_to_semid_ds50(&sembuf32, &sembuf);
    981 		}
    982 	}
    983 
    984 	error = semctl1(l, SCARG(uap, semid), SCARG(uap, semnum), cmd,
    985 	    pass_arg, retval);
    986 
    987 	if (error == 0 && cmd == IPC_STAT) {
    988 		netbsd32_from_semid_ds50(&sembuf, &sembuf32);
    989 		error = copyout(&sembuf32, NETBSD32PTR64(karg32.buf),
    990 		    sizeof(sembuf32));
    991 	}
    992 
    993 	return (error);
    994 }
    995 #endif
    996 
    997 #if defined(SYSVMSG)
    998 
    999 int
   1000 compat_50_netbsd32___msgctl13(struct lwp *l, const struct compat_50_netbsd32___msgctl13_args *uap, register_t *retval)
   1001 {
   1002 	/* {
   1003 		syscallarg(int) msqid;
   1004 		syscallarg(int) cmd;
   1005 		syscallarg(netbsd32_msqid_ds50p_t) buf;
   1006 	} */
   1007 	struct msqid_ds ds;
   1008 	struct netbsd32_msqid_ds50 ds32;
   1009 	int error, cmd;
   1010 
   1011 	cmd = SCARG(uap, cmd);
   1012 	if (cmd == IPC_SET) {
   1013 		error = copyin(SCARG_P32(uap, buf), &ds32, sizeof(ds32));
   1014 		if (error)
   1015 			return error;
   1016 		netbsd32_to_msqid_ds50(&ds32, &ds);
   1017 	}
   1018 
   1019 	error = msgctl1(l, SCARG(uap, msqid), cmd,
   1020 	    (cmd == IPC_SET || cmd == IPC_STAT) ? &ds : NULL);
   1021 
   1022 	if (error == 0 && cmd == IPC_STAT) {
   1023 		netbsd32_from_msqid_ds50(&ds, &ds32);
   1024 		error = copyout(&ds32, SCARG_P32(uap, buf), sizeof(ds32));
   1025 	}
   1026 
   1027 	return error;
   1028 }
   1029 #endif
   1030 
   1031 #if defined(SYSVSHM)
   1032 
   1033 int
   1034 compat_50_netbsd32___shmctl13(struct lwp *l, const struct compat_50_netbsd32___shmctl13_args *uap, register_t *retval)
   1035 {
   1036 	/* {
   1037 		syscallarg(int) shmid;
   1038 		syscallarg(int) cmd;
   1039 		syscallarg(netbsd32_shmid_ds50p_t) buf;
   1040 	} */
   1041 	struct shmid_ds ds;
   1042 	struct netbsd32_shmid_ds50 ds32;
   1043 	int error, cmd;
   1044 
   1045 	cmd = SCARG(uap, cmd);
   1046 	if (cmd == IPC_SET) {
   1047 		error = copyin(SCARG_P32(uap, buf), &ds32, sizeof(ds32));
   1048 		if (error)
   1049 			return error;
   1050 		netbsd32_to_shmid_ds50(&ds32, &ds);
   1051 	}
   1052 
   1053 	error = shmctl1(l, SCARG(uap, shmid), cmd,
   1054 	    (cmd == IPC_SET || cmd == IPC_STAT) ? &ds : NULL);
   1055 
   1056 	if (error == 0 && cmd == IPC_STAT) {
   1057 		netbsd32_from_shmid_ds50(&ds, &ds32);
   1058 		error = copyout(&ds32, SCARG_P32(uap, buf), sizeof(ds32));
   1059 	}
   1060 
   1061 	return error;
   1062 }
   1063 #endif
   1064 
   1065 int
   1066 compat_50_netbsd32_quotactl(struct lwp *l, const struct compat_50_netbsd32_quotactl_args *uap, register_t *retval)
   1067 {
   1068 	/* {
   1069 		syscallarg(const netbsd32_charp) path;
   1070 		syscallarg(int) cmd;
   1071 		syscallarg(int) uid;
   1072 		syscallarg(netbsd32_voidp) arg;
   1073 	} */
   1074 	struct compat_50_sys_quotactl_args ua;
   1075 
   1076 	NETBSD32TOP_UAP(path, const char);
   1077 	NETBSD32TO64_UAP(cmd);
   1078 	NETBSD32TO64_UAP(uid);
   1079 	NETBSD32TOP_UAP(arg, void *);
   1080 	return (compat_50_sys_quotactl(l, &ua, retval));
   1081 }
   1082