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netbsd32_compat_50.c revision 1.39.2.1
      1 /*	$NetBSD: netbsd32_compat_50.c,v 1.39.2.1 2019/12/18 20:04:32 martin 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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 #include <sys/cdefs.h>
     32 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_50.c,v 1.39.2.1 2019/12/18 20:04:32 martin Exp $");
     33 
     34 #if defined(_KERNEL_OPT)
     35 #include "opt_compat_netbsd.h"
     36 #include "opt_compat_netbsd32.h"
     37 #include "opt_ntp.h"
     38 #include "opt_quota.h"
     39 #endif
     40 
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/module.h>
     45 #include <sys/mount.h>
     46 #include <sys/socket.h>
     47 #include <sys/socketvar.h>
     48 #include <sys/stat.h>
     49 #include <sys/time.h>
     50 #include <sys/ktrace.h>
     51 #include <sys/eventvar.h>
     52 #include <sys/resourcevar.h>
     53 #include <sys/vnode.h>
     54 #include <sys/file.h>
     55 #include <sys/filedesc.h>
     56 #include <sys/poll.h>
     57 #include <sys/namei.h>
     58 #include <sys/statvfs.h>
     59 #include <sys/syscallargs.h>
     60 #include <sys/syscallvar.h>
     61 #include <sys/proc.h>
     62 #include <sys/dirent.h>
     63 #include <sys/kauth.h>
     64 #include <sys/vfs_syscalls.h>
     65 #include <sys/rnd.h>
     66 #include <sys/compat_stub.h>
     67 #include <sys/module_hook.h>
     68 
     69 #include <compat/netbsd32/netbsd32.h>
     70 #include <compat/netbsd32/netbsd32_syscall.h>
     71 #include <compat/netbsd32/netbsd32_syscallargs.h>
     72 #include <compat/netbsd32/netbsd32_conv.h>
     73 #include <compat/sys/mount.h>
     74 #include <compat/sys/time.h>
     75 #include <compat/sys/rnd.h>
     76 
     77 #if defined(COMPAT_50)
     78 
     79 /*
     80  * Common routine to set access and modification times given a vnode.
     81  */
     82 static int
     83 get_utimes32(const netbsd32_timeval50p_t *tptr, struct timeval *tv,
     84     struct timeval **tvp)
     85 {
     86 	int error;
     87 	struct netbsd32_timeval50 tv32[2];
     88 
     89 	if (tptr == NULL) {
     90 		*tvp = NULL;
     91 		return 0;
     92 	}
     93 
     94 	error = copyin(tptr, tv32, sizeof(tv32));
     95 	if (error)
     96 		return error;
     97 	netbsd32_to_timeval50(&tv32[0], &tv[0]);
     98 	netbsd32_to_timeval50(&tv32[1], &tv[1]);
     99 
    100 	*tvp = tv;
    101 	return 0;
    102 }
    103 
    104 int
    105 compat_50_netbsd32_mknod(struct lwp *l,
    106     const struct compat_50_netbsd32_mknod_args *uap, register_t *retval)
    107 {
    108 	/* {
    109 		syscallarg(netbsd32_charp) path;
    110 		syscallarg(mode_t) mode;
    111 		syscallarg(uint32_t) dev;
    112 	} */
    113 	return do_sys_mknod(l, SCARG_P32(uap, path), SCARG(uap, mode),
    114 	    SCARG(uap, dev), UIO_USERSPACE);
    115 }
    116 
    117 int
    118 compat_50_netbsd32_select(struct lwp *l,
    119     const struct compat_50_netbsd32_select_args *uap, register_t *retval)
    120 {
    121 	/* {
    122 		syscallarg(int) nd;
    123 		syscallarg(netbsd32_fd_setp_t) in;
    124 		syscallarg(netbsd32_fd_setp_t) ou;
    125 		syscallarg(netbsd32_fd_setp_t) ex;
    126 		syscallarg(netbsd32_timeval50p_t) tv;
    127 	} */
    128 	int error;
    129 	struct netbsd32_timeval50 tv32;
    130 	struct timespec ats, *ts = NULL;
    131 
    132 	if (SCARG_P32(uap, tv)) {
    133 		error = copyin(SCARG_P32(uap, tv), &tv32, sizeof(tv32));
    134 		if (error != 0)
    135 			return error;
    136 		ats.tv_sec = tv32.tv_sec;
    137 		ats.tv_nsec = tv32.tv_usec * 1000;
    138 		ts = &ats;
    139 	}
    140 
    141 	return selcommon(retval, SCARG(uap, nd), SCARG_P32(uap, in),
    142 	    SCARG_P32(uap, ou), SCARG_P32(uap, ex), ts, NULL);
    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 		mutex_spin_enter(&timecounter_lock);
    252 		atv.tv_sec = time_adjtime / 1000000;
    253 		atv.tv_usec = time_adjtime % 1000000;
    254 		if (atv.tv_usec < 0) {
    255 			atv.tv_usec += 1000000;
    256 			atv.tv_sec--;
    257 		}
    258 		mutex_spin_exit(&timecounter_lock);
    259 
    260 		error = copyout(&atv, SCARG_P32(uap, olddelta), sizeof(atv));
    261 		if (error)
    262 			return (error);
    263 	}
    264 
    265 	if (SCARG_P32(uap, delta)) {
    266 		error = copyin(SCARG_P32(uap, delta), &atv, sizeof(atv));
    267 		if (error)
    268 			return (error);
    269 
    270 		mutex_spin_enter(&timecounter_lock);
    271 		time_adjtime = (int64_t)atv.tv_sec * 1000000 + atv.tv_usec;
    272 		if (time_adjtime)
    273 			/* We need to save the system time during shutdown */
    274 			time_adjusted |= 1;
    275 		mutex_spin_exit(&timecounter_lock);
    276 	}
    277 
    278 	return 0;
    279 }
    280 
    281 int
    282 compat_50_netbsd32_futimes(struct lwp *l,
    283     const struct compat_50_netbsd32_futimes_args *uap, register_t *retval)
    284 {
    285 	/* {
    286 		syscallarg(int) fd;
    287 		syscallarg(const netbsd32_timeval50p_t) tptr;
    288 	} */
    289 	int error;
    290 	file_t *fp;
    291 	struct timeval tv[2], *tvp;
    292 
    293 	error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
    294 	if (error != 0)
    295 		return error;
    296 
    297 	/* fd_getvnode() will use the descriptor for us */
    298 	if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
    299 		return error;
    300 
    301 	error = do_sys_utimes(l, fp->f_vnode, NULL, 0, tvp, UIO_SYSSPACE);
    302 
    303 	fd_putfile(SCARG(uap, fd));
    304 	return error;
    305 }
    306 
    307 int
    308 compat_50_netbsd32_clock_gettime(struct lwp *l,
    309     const struct compat_50_netbsd32_clock_gettime_args *uap, register_t *retval)
    310 {
    311 	/* {
    312 		syscallarg(netbsd32_clockid_t) clock_id;
    313 		syscallarg(netbsd32_timespec50p_t) tp;
    314 	} */
    315 	int error;
    316 	struct timespec ats;
    317 	struct netbsd32_timespec50 ts32;
    318 
    319 	error = clock_gettime1(SCARG(uap, clock_id), &ats);
    320 	if (error != 0)
    321 		return error;
    322 
    323 	netbsd32_from_timespec50(&ats, &ts32);
    324 	return copyout(&ts32, SCARG_P32(uap, tp), sizeof(ts32));
    325 }
    326 
    327 int
    328 compat_50_netbsd32_clock_settime(struct lwp *l,
    329     const struct compat_50_netbsd32_clock_settime_args *uap, register_t *retval)
    330 {
    331 	/* {
    332 		syscallarg(netbsd32_clockid_t) clock_id;
    333 		syscallarg(const netbsd32_timespec50p_t) tp;
    334 	} */
    335 	struct netbsd32_timespec50 ts32;
    336 	struct timespec ats;
    337 	int error;
    338 
    339 	if ((error = copyin(SCARG_P32(uap, tp), &ts32, sizeof(ts32))) != 0)
    340 		return (error);
    341 
    342 	netbsd32_to_timespec50(&ts32, &ats);
    343 	return clock_settime1(l->l_proc, SCARG(uap, clock_id), &ats, true);
    344 }
    345 
    346 int
    347 compat_50_netbsd32_clock_getres(struct lwp *l,
    348     const struct compat_50_netbsd32_clock_getres_args *uap, register_t *retval)
    349 {
    350 	/* {
    351 		syscallarg(netbsd32_clockid_t) clock_id;
    352 		syscallarg(netbsd32_timespec50p_t) tp;
    353 	} */
    354 	struct netbsd32_timespec50 ts32;
    355 	struct timespec ts;
    356 	int error;
    357 
    358 	error = clock_getres1(SCARG(uap, clock_id), &ts);
    359 	if (error != 0)
    360 		return error;
    361 
    362 	if (SCARG_P32(uap, tp)) {
    363 		netbsd32_from_timespec50(&ts, &ts32);
    364 		error = copyout(&ts32, SCARG_P32(uap, tp), sizeof(ts32));
    365 	}
    366 
    367 	return error;
    368 }
    369 
    370 int
    371 compat_50_netbsd32_timer_settime(struct lwp *l,
    372     const struct compat_50_netbsd32_timer_settime_args *uap, register_t *retval)
    373 {
    374 	/* {
    375 		syscallarg(netbsd32_timer_t) timerid;
    376 		syscallarg(int) flags;
    377 		syscallarg(const netbsd32_itimerspec50p_t) value;
    378 		syscallarg(netbsd32_itimerspec50p_t) ovalue;
    379 	} */
    380 	int error;
    381 	struct itimerspec value, ovalue, *ovp = NULL;
    382 	struct netbsd32_itimerspec50 its32;
    383 
    384 	if ((error = copyin(SCARG_P32(uap, value), &its32, sizeof(its32))) != 0)
    385 		return (error);
    386 	netbsd32_to_timespec50(&its32.it_interval, &value.it_interval);
    387 	netbsd32_to_timespec50(&its32.it_value, &value.it_value);
    388 
    389 	if (SCARG_P32(uap, ovalue))
    390 		ovp = &ovalue;
    391 
    392 	if ((error = dotimer_settime(SCARG(uap, timerid), &value, ovp,
    393 	    SCARG(uap, flags), l->l_proc)) != 0)
    394 		return error;
    395 
    396 	if (ovp) {
    397 		netbsd32_from_timespec50(&ovp->it_interval, &its32.it_interval);
    398 		netbsd32_from_timespec50(&ovp->it_value, &its32.it_value);
    399 		return copyout(&its32, SCARG_P32(uap, ovalue), sizeof(its32));
    400 	}
    401 	return 0;
    402 }
    403 
    404 int
    405 compat_50_netbsd32_timer_gettime(struct lwp *l, const struct compat_50_netbsd32_timer_gettime_args *uap, register_t *retval)
    406 {
    407 	/* {
    408 		syscallarg(netbsd32_timer_t) timerid;
    409 		syscallarg(netbsd32_itimerspec50p_t) value;
    410 	} */
    411 	int error;
    412 	struct itimerspec its;
    413 	struct netbsd32_itimerspec50 its32;
    414 
    415 	if ((error = dotimer_gettime(SCARG(uap, timerid), l->l_proc,
    416 	    &its)) != 0)
    417 		return error;
    418 
    419 	netbsd32_from_timespec50(&its.it_interval, &its32.it_interval);
    420 	netbsd32_from_timespec50(&its.it_value, &its32.it_value);
    421 
    422 	return copyout(&its32, SCARG_P32(uap, value), sizeof(its32));
    423 }
    424 
    425 int
    426 compat_50_netbsd32_nanosleep(struct lwp *l,
    427     const struct compat_50_netbsd32_nanosleep_args *uap, register_t *retval)
    428 {
    429 	/* {
    430 		syscallarg(const netbsd32_timespec50p_t) rqtp;
    431 		syscallarg(netbsd32_timespecp_t) rmtp;
    432 	} */
    433 	struct netbsd32_timespec50 ts32;
    434 	struct timespec rqt, rmt;
    435 	int error, error1;
    436 
    437 	error = copyin(SCARG_P32(uap, rqtp), &ts32, sizeof(ts32));
    438 	if (error)
    439 		return (error);
    440 	netbsd32_to_timespec50(&ts32, &rqt);
    441 
    442 	error = nanosleep1(l, CLOCK_MONOTONIC, 0, &rqt,
    443 	    SCARG_P32(uap, rmtp) ? &rmt : NULL);
    444 	if (SCARG_P32(uap, rmtp) == NULL || (error != 0 && error != EINTR))
    445 		return error;
    446 
    447 	netbsd32_from_timespec50(&rmt, &ts32);
    448 	error1 = copyout(&ts32, SCARG_P32(uap,rmtp), sizeof(ts32));
    449 	return error1 ? error1 : error;
    450 }
    451 
    452 static int
    453 compat_50_netbsd32_sigtimedwait_put_info(const void *src, void *dst, size_t size)
    454 {
    455 	const siginfo_t *info = src;
    456 	siginfo32_t info32;
    457 
    458 	netbsd32_si_to_si32(&info32, info);
    459 
    460 	return copyout(&info32, dst, sizeof(info32));
    461 }
    462 
    463 static int
    464 compat_50_netbsd32_sigtimedwait_fetch_timeout(const void *src, void *dst, size_t size)
    465 {
    466 	struct timespec *ts = dst;
    467 	struct netbsd32_timespec50 ts32;
    468 	int error;
    469 
    470 	error = copyin(src, &ts32, sizeof(ts32));
    471 	if (error)
    472 		return error;
    473 
    474 	netbsd32_to_timespec50(&ts32, ts);
    475 	return 0;
    476 }
    477 
    478 static int
    479 compat_50_netbsd32_sigtimedwait_put_timeout(const void *src, void *dst, size_t size)
    480 {
    481 	const struct timespec *ts = src;
    482 	struct netbsd32_timespec50 ts32;
    483 
    484 	netbsd32_from_timespec50(ts, &ts32);
    485 
    486 	return copyout(&ts32, dst, sizeof(ts32));
    487 }
    488 
    489 int
    490 compat_50_netbsd32___sigtimedwait(struct lwp *l,
    491     const struct compat_50_netbsd32___sigtimedwait_args *uap, register_t *retval)
    492 {
    493 	/* {
    494 		syscallarg(netbsd32_sigsetp_t) set;
    495 		syscallarg(netbsd32_siginfop_t) info;
    496 		syscallarg(netbsd32_timespec50p_t) timeout;
    497 	} */
    498 	struct sys_____sigtimedwait50_args ua;
    499 	int res;
    500 
    501 	NETBSD32TOP_UAP(set, const sigset_t);
    502 	NETBSD32TOP_UAP(info, siginfo_t);
    503 	NETBSD32TOP_UAP(timeout, struct timespec);
    504 
    505 	res = sigtimedwait1(l, &ua, retval,
    506 	    copyin,
    507 	    compat_50_netbsd32_sigtimedwait_put_info,
    508 	    compat_50_netbsd32_sigtimedwait_fetch_timeout,
    509 	    compat_50_netbsd32_sigtimedwait_put_timeout);
    510 	if (!res)
    511 		*retval = 0; /* NetBSD<=5 was not POSIX compliant */
    512 	return res;
    513 }
    514 
    515 int
    516 compat_50_netbsd32_lutimes(struct lwp *l,
    517     const struct compat_50_netbsd32_lutimes_args *uap, register_t *retval)
    518 {
    519 	/* {
    520 		syscallarg(const netbsd32_charp) path;
    521 		syscallarg(const netbsd32_timeval50p_t) tptr;
    522 	} */
    523 	int error;
    524 	struct timeval tv[2], *tvp;
    525 
    526 	error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
    527 	if (error != 0)
    528 		return error;
    529 
    530 	return do_sys_utimes(l, NULL, SCARG_P32(uap, path), NOFOLLOW,
    531 	    tvp, UIO_SYSSPACE);
    532 }
    533 
    534 int
    535 compat_50_netbsd32__lwp_park(struct lwp *l,
    536     const struct compat_50_netbsd32__lwp_park_args *uap, register_t *retval)
    537 {
    538 	/* {
    539 		syscallarg(const netbsd32_timespec50p) ts;
    540 		syscallarg(lwpid_t) unpark;
    541 		syscallarg(netbsd32_voidp) hint;
    542 		syscallarg(netbsd32_voidp) unparkhint;
    543 	} */
    544 	struct timespec ts, *tsp;
    545 	struct netbsd32_timespec50 ts32;
    546 	int error;
    547 
    548 	if (SCARG_P32(uap, ts) == NULL)
    549 		tsp = NULL;
    550 	else {
    551 		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof ts32);
    552 		if (error != 0)
    553 			return error;
    554 		netbsd32_to_timespec50(&ts32, &ts);
    555 		tsp = &ts;
    556 	}
    557 
    558 	if (SCARG(uap, unpark) != 0) {
    559 		error = lwp_unpark(SCARG(uap, unpark),
    560 		    SCARG_P32(uap, unparkhint));
    561 		if (error != 0)
    562 			return error;
    563 	}
    564 
    565 	return lwp_park(CLOCK_REALTIME, TIMER_ABSTIME, tsp,
    566 	    SCARG_P32(uap, hint));
    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 *ctx, 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 = ctx;
    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 *ctx, struct kevent *events,
    603     struct kevent *eventlist, size_t index, int n)
    604 {
    605 	struct netbsd32_kevent *kev32, *events32 = ctx;
    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 = KQ_NEVENTS;
    637 
    638 	netbsd32_kevent_ops.keo_private =
    639 	    kmem_alloc(maxalloc * sizeof(struct netbsd32_kevent), KM_SLEEP);
    640 
    641 	error = kevent1(retval, SCARG(uap, fd),
    642 	    NETBSD32PTR64(SCARG(uap, changelist)), nchanges,
    643 	    NETBSD32PTR64(SCARG(uap, eventlist)), nevents,
    644 	    NETBSD32PTR64(SCARG(uap, timeout)), &netbsd32_kevent_ops);
    645 
    646 	kmem_free(netbsd32_kevent_ops.keo_private,
    647 	    maxalloc * sizeof(struct netbsd32_kevent));
    648 	return error;
    649 }
    650 
    651 int
    652 compat_50_netbsd32_pselect(struct lwp *l,
    653     const struct compat_50_netbsd32_pselect_args *uap, register_t *retval)
    654 {
    655 	/* {
    656 		syscallarg(int) nd;
    657 		syscallarg(netbsd32_fd_setp_t) in;
    658 		syscallarg(netbsd32_fd_setp_t) ou;
    659 		syscallarg(netbsd32_fd_setp_t) ex;
    660 		syscallarg(const netbsd32_timespec50p_t) ts;
    661 		syscallarg(const netbsd32_sigsetp_t) mask;
    662 	} */
    663 	int error;
    664 	struct netbsd32_timespec50 ts32;
    665 	struct timespec ats, *ts = NULL;
    666 	sigset_t amask, *mask = NULL;
    667 
    668 	if (SCARG_P32(uap, ts)) {
    669 		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof(ts32));
    670 		if (error != 0)
    671 			return error;
    672 		netbsd32_to_timespec50(&ts32, &ats);
    673 		ts = &ats;
    674 	}
    675 	if (SCARG_P32(uap, mask)) {
    676 		error = copyin(SCARG_P32(uap, mask), &amask, sizeof(amask));
    677 		if (error != 0)
    678 			return error;
    679 		mask = &amask;
    680 	}
    681 
    682 	return selcommon(retval, SCARG(uap, nd), SCARG_P32(uap, in),
    683 	    SCARG_P32(uap, ou), SCARG_P32(uap, ex), ts, mask);
    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 #ifdef QUOTA
    914 int
    915 compat_50_netbsd32_quotactl(struct lwp *l, const struct compat_50_netbsd32_quotactl_args *uap, register_t *retval)
    916 {
    917 	/* {
    918 		syscallarg(const netbsd32_charp) path;
    919 		syscallarg(int) cmd;
    920 		syscallarg(int) uid;
    921 		syscallarg(netbsd32_voidp) arg;
    922 	} */
    923 	struct compat_50_sys_quotactl_args ua;
    924 
    925 	NETBSD32TOP_UAP(path, const char);
    926 	NETBSD32TO64_UAP(cmd);
    927 	NETBSD32TO64_UAP(uid);
    928 	NETBSD32TOP_UAP(arg, void *);
    929 	return (compat_50_sys_quotactl(l, &ua, retval));
    930 }
    931 #endif
    932 
    933 #ifdef NTP
    934 int
    935 compat_50_netbsd32_ntp_gettime(struct lwp *l,
    936     const struct compat_50_netbsd32_ntp_gettime_args *uap, register_t *retval)
    937 {
    938 	/* {
    939 		syscallarg(netbsd32_ntptimeval50p_t) ntvp;
    940 	} */
    941 	struct netbsd32_ntptimeval50 ntv32;
    942 	struct ntptimeval ntv;
    943 	int error = 0;
    944 
    945 	if (vec_ntp_gettime == NULL)
    946 		return EINVAL;
    947 
    948 	if (SCARG_P32(uap, ntvp)) {
    949 		(*vec_ntp_gettime)(&ntv);
    950 
    951 		memset(&ntv32, 0, sizeof(ntv32));
    952 		ntv32.time.tv_sec = (int32_t)ntv.time.tv_sec;
    953 		ntv32.time.tv_nsec = ntv.time.tv_nsec;
    954 		ntv32.maxerror = (netbsd32_long)ntv.maxerror;
    955 		ntv32.esterror = (netbsd32_long)ntv.esterror;
    956 		ntv32.tai = (netbsd32_long)ntv.tai;
    957 		ntv32.time_state = ntv.time_state;
    958 		error = copyout(&ntv32, SCARG_P32(uap, ntvp), sizeof(ntv32));
    959 	}
    960 	if (!error) {
    961 		*retval = (*vec_ntp_timestatus)();
    962 	}
    963 
    964 	return (error);
    965 }
    966 #endif
    967 
    968 static struct syscall_package compat_netbsd32_50_syscalls[] = {
    969 	{ NETBSD32_SYS_compat_50_netbsd32_mknod, 0,
    970 	    (sy_call_t *)compat_50_netbsd32_mknod },
    971 	{ NETBSD32_SYS_compat_50_netbsd32_select, 0,
    972 	    (sy_call_t *)compat_50_netbsd32_select },
    973 	{ NETBSD32_SYS_compat_50_netbsd32_gettimeofday, 0,
    974 	    (sy_call_t *)compat_50_netbsd32_gettimeofday },
    975 	{ NETBSD32_SYS_compat_50_netbsd32_settimeofday, 0,
    976 	    (sy_call_t *)compat_50_netbsd32_settimeofday },
    977 	{ NETBSD32_SYS_compat_50_netbsd32_utimes, 0,
    978 	    (sy_call_t *)compat_50_netbsd32_utimes },
    979 	{ NETBSD32_SYS_compat_50_netbsd32_futimes, 0,
    980 	    (sy_call_t *)compat_50_netbsd32_futimes },
    981 	{ NETBSD32_SYS_compat_50_netbsd32_adjtime, 0,
    982 	    (sy_call_t *)compat_50_netbsd32_adjtime },
    983 	{ NETBSD32_SYS_compat_50_netbsd32_clock_gettime, 0,
    984 	    (sy_call_t *)compat_50_netbsd32_clock_gettime },
    985 	{ NETBSD32_SYS_compat_50_netbsd32_clock_settime, 0,
    986 	    (sy_call_t *)compat_50_netbsd32_clock_settime },
    987 	{ NETBSD32_SYS_compat_50_netbsd32_clock_getres, 0,
    988 	    (sy_call_t *)compat_50_netbsd32_clock_getres },
    989 	{ NETBSD32_SYS_compat_50_netbsd32_timer_settime, 0,
    990 	    (sy_call_t *)compat_50_netbsd32_timer_settime },
    991 	{ NETBSD32_SYS_compat_50_netbsd32_timer_gettime, 0,
    992 	    (sy_call_t *)compat_50_netbsd32_timer_gettime },
    993 	{ NETBSD32_SYS_compat_50_netbsd32_nanosleep, 0,
    994 	    (sy_call_t *)compat_50_netbsd32_nanosleep },
    995 	{ NETBSD32_SYS_compat_50_netbsd32___sigtimedwait, 0,
    996 	    (sy_call_t *)compat_50_netbsd32___sigtimedwait },
    997 	{ NETBSD32_SYS_compat_50_netbsd32_lutimes, 0,
    998 	    (sy_call_t *)compat_50_netbsd32_lutimes },
    999 	{ NETBSD32_SYS_compat_50_netbsd32__lwp_park, 0,
   1000 	    (sy_call_t *)compat_50_netbsd32__lwp_park },
   1001 	{ NETBSD32_SYS_compat_50_netbsd32_kevent, 0,
   1002 	    (sy_call_t *)compat_50_netbsd32_kevent },
   1003 	{ NETBSD32_SYS_compat_50_netbsd32_pselect, 0,
   1004 	    (sy_call_t *)compat_50_netbsd32_pselect },
   1005 	{ NETBSD32_SYS_compat_50_netbsd32_pollts, 0,
   1006 	    (sy_call_t *)compat_50_netbsd32_pollts },
   1007 	{ NETBSD32_SYS_compat_50_netbsd32___stat30, 0,
   1008 	    (sy_call_t *)compat_50_netbsd32___stat30 },
   1009 	{ NETBSD32_SYS_compat_50_netbsd32___fstat30, 0,
   1010 	    (sy_call_t *)compat_50_netbsd32___fstat30 },
   1011 	{ NETBSD32_SYS_compat_50_netbsd32___lstat30, 0,
   1012 	    (sy_call_t *)compat_50_netbsd32___lstat30 },
   1013 	{ NETBSD32_SYS_compat_50_netbsd32___fhstat40, 0,
   1014 	    (sy_call_t *)compat_50_netbsd32___fhstat40 },
   1015 	{ NETBSD32_SYS_compat_50_netbsd32_wait4, 0,
   1016 	    (sy_call_t *)compat_50_netbsd32_wait4 },
   1017 	{ NETBSD32_SYS_compat_50_netbsd32_getrusage, 0,
   1018 	    (sy_call_t *)compat_50_netbsd32_getrusage },
   1019 	{ NETBSD32_SYS_compat_50_netbsd32_setitimer, 0,
   1020 	    (sy_call_t *)compat_50_netbsd32_setitimer },
   1021 	{ NETBSD32_SYS_compat_50_netbsd32_getitimer, 0,
   1022 	    (sy_call_t *)compat_50_netbsd32_getitimer },
   1023 #ifdef QUOTA
   1024 	{ NETBSD32_SYS_compat_50_netbsd32_quotactl, 0,
   1025 	    (sy_call_t *)compat_50_netbsd32_quotactl },
   1026 #endif
   1027 #ifdef NTP
   1028 	{ NETBSD32_SYS_compat_50_netbsd32_ntp_gettime, 0,
   1029 	    (sy_call_t *)compat_50_netbsd32_ntp_gettime },
   1030 #endif
   1031 	{ 0, 0, NULL }
   1032 };
   1033 
   1034 MODULE(MODULE_CLASS_EXEC, compat_netbsd32_50, "compat_netbsd32_60,compat_50");
   1035 
   1036 static int
   1037 compat_netbsd32_50_modcmd(modcmd_t cmd, void *arg)
   1038 {
   1039 	int ret;
   1040 
   1041 	switch (cmd) {
   1042 	case MODULE_CMD_INIT:
   1043                 ret = syscall_establish(&emul_netbsd32,
   1044 		    compat_netbsd32_50_syscalls);
   1045 		if (ret == 0)
   1046 			MODULE_HOOK_SET(rnd_ioctl32_50_hook, "rnd32_50",
   1047 			    compat32_50_rnd_ioctl);
   1048 		return ret;
   1049 
   1050 	case MODULE_CMD_FINI:
   1051                 ret = syscall_disestablish(&emul_netbsd32,
   1052 		    compat_netbsd32_50_syscalls);
   1053 		if (ret == 0)
   1054 			MODULE_HOOK_UNSET(rnd_ioctl32_50_hook);
   1055 		return ret;
   1056 
   1057 	default:
   1058 		return ENOTTY;
   1059 	}
   1060 }
   1061 #endif /* COMPAT_50 */
   1062