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      1 /*	$NetBSD: sunos32_misc.c,v 1.86 2023/06/20 15:21:55 riastradh Exp $	*/
      2 /* from :NetBSD: sunos_misc.c,v 1.107 2000/12/01 19:25:10 jdolecek Exp	*/
      3 
      4 /*
      5  * Copyright (c) 2001 Matthew R. Green
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     22  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     24  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     25  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  * SUCH DAMAGE.
     28  */
     29 
     30 /*
     31  * Copyright (c) 1992, 1993
     32  *	The Regents of the University of California.  All rights reserved.
     33  *
     34  * This software was developed by the Computer Systems Engineering group
     35  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
     36  * contributed to Berkeley.
     37  *
     38  * All advertising materials mentioning features or use of this software
     39  * must display the following acknowledgement:
     40  *	This product includes software developed by the University of
     41  *	California, Lawrence Berkeley Laboratory.
     42  *
     43  * Redistribution and use in source and binary forms, with or without
     44  * modification, are permitted provided that the following conditions
     45  * are met:
     46  * 1. Redistributions of source code must retain the above copyright
     47  *    notice, this list of conditions and the following disclaimer.
     48  * 2. Redistributions in binary form must reproduce the above copyright
     49  *    notice, this list of conditions and the following disclaimer in the
     50  *    documentation and/or other materials provided with the distribution.
     51  * 3. Neither the name of the University nor the names of its contributors
     52  *    may be used to endorse or promote products derived from this software
     53  *    without specific prior written permission.
     54  *
     55  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     56  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     57  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     58  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     59  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     60  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     61  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     62  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     63  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     64  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     65  * SUCH DAMAGE.
     66  *
     67  *	@(#)sunos_misc.c	8.1 (Berkeley) 6/18/93
     68  *
     69  *	Header: sunos_misc.c,v 1.16 93/04/07 02:46:27 torek Exp
     70  */
     71 
     72 /*
     73  * SunOS compatibility module, 64-bit kernel version
     74  *
     75  * SunOS system calls that are implemented differently in BSD are
     76  * handled here.
     77  */
     78 
     79 #include <sys/cdefs.h>
     80 __KERNEL_RCSID(0, "$NetBSD: sunos32_misc.c,v 1.86 2023/06/20 15:21:55 riastradh Exp $");
     81 
     82 #define COMPAT_SUNOS 1
     83 
     84 #if defined(_KERNEL_OPT)
     85 #include "opt_compat_43.h"
     86 #include "opt_compat_netbsd.h"
     87 #endif
     88 
     89 #include <sys/param.h>
     90 #include <sys/systm.h>
     91 #include <sys/namei.h>
     92 #include <sys/proc.h>
     93 #include <sys/dirent.h>
     94 #include <sys/file.h>
     95 #include <sys/stat.h>
     96 #include <sys/filedesc.h>
     97 #include <sys/ioctl.h>
     98 #include <sys/kernel.h>
     99 #include <sys/reboot.h>
    100 #include <sys/malloc.h>
    101 #include <sys/mbuf.h>
    102 #include <sys/mman.h>
    103 #include <sys/mount.h>
    104 #include <sys/ptrace.h>
    105 #include <sys/resource.h>
    106 #include <sys/resourcevar.h>
    107 #include <sys/signal.h>
    108 #include <sys/signalvar.h>
    109 #include <sys/socket.h>
    110 #include <sys/tty.h>
    111 #include <sys/vnode.h>
    112 #include <sys/uio.h>
    113 #include <sys/wait.h>
    114 #include <sys/utsname.h>
    115 #include <sys/unistd.h>
    116 #include <sys/syscall.h>
    117 #include <sys/syscallargs.h>
    118 #include <sys/conf.h>
    119 #include <sys/socketvar.h>
    120 #include <sys/exec.h>
    121 #include <sys/swap.h>
    122 #include <sys/kauth.h>
    123 #include <sys/vfs_syscalls.h>
    124 
    125 #include <compat/netbsd32/netbsd32.h>
    126 #include <compat/netbsd32/netbsd32_syscallargs.h>
    127 #include <compat/sunos32/sunos32.h>
    128 #include <compat/sunos32/sunos32_dirent.h>
    129 #include <compat/sunos32/sunos32_syscallargs.h>
    130 #include <compat/common/compat_util.h>
    131 #include <compat/sys/mount.h>
    132 
    133 #include <netinet/in.h>
    134 
    135 #include <miscfs/specfs/specdev.h>
    136 
    137 #include <nfs/rpcv2.h>
    138 #include <nfs/nfsproto.h>
    139 #include <nfs/nfs.h>
    140 #include <nfs/nfsmount.h>
    141 
    142 static void sunos32_sigvec_to_sigaction(const struct netbsd32_sigvec *, struct sigaction *);
    143 static void sunos32_sigvec_from_sigaction(struct netbsd32_sigvec *, const struct sigaction *);
    144 
    145 static int sunstatfs(struct statvfs *, void *);
    146 
    147 static void
    148 sunos32_sigvec_to_sigaction(const struct netbsd32_sigvec *sv, struct sigaction *sa)
    149 {
    150 /*XXX*/ extern void compat_43_sigmask_to_sigset(const int *, sigset_t *);
    151 
    152 	sa->sa_handler = NETBSD32PTR64(sv->sv_handler);
    153 	compat_43_sigmask_to_sigset(&sv->sv_mask, &sa->sa_mask);
    154 	sa->sa_flags = sv->sv_flags ^ SA_RESTART;
    155 }
    156 
    157 static void
    158 sunos32_sigvec_from_sigaction(
    159 	struct netbsd32_sigvec *sv,
    160 	const struct sigaction *sa)
    161 {
    162 /*XXX*/ extern void compat_43_sigset_to_sigmask(const sigset_t *, int *);
    163 
    164 	memset(sv, 0, sizeof(*sv));
    165 	NETBSD32PTR32(sv->sv_handler, sa->sa_handler);
    166 	compat_43_sigset_to_sigmask(&sa->sa_mask, &sv->sv_mask);
    167 	sv->sv_flags = sa->sa_flags ^ SA_RESTART;
    168 }
    169 
    170 int
    171 sunos32_sys_stime(struct lwp *l, const struct sunos32_sys_stime_args *uap, register_t *retval)
    172 {
    173 	/* {
    174 		syscallarg(sunos32_time_tp) tp;
    175 	} */
    176 	struct netbsd32_timeval ntv;
    177 	struct timeval tv;
    178 	int error;
    179 
    180 	error = copyin(SCARG_P32(uap, tp), &ntv.tv_sec, sizeof(ntv.tv_sec));
    181 	if (error)
    182 		return error;
    183 	tv.tv_sec = ntv.tv_sec;
    184 	tv.tv_usec = 0;
    185 
    186 	return settimeofday1(&tv, false, NULL, l, true);
    187 }
    188 
    189 int
    190 sunos32_sys_wait4(struct lwp *l, const struct sunos32_sys_wait4_args *uap, register_t *retval)
    191 {
    192 	/* {
    193 		syscallarg(int) pid;
    194 		syscallarg(netbsd32_intp) status;
    195 		syscallarg(int) options;
    196 		syscallarg(netbsd32_rusagep_t) rusage;
    197 	} */
    198 
    199 	struct compat_50_netbsd32_wait4_args bsd_ua;
    200 
    201 	SCARG(&bsd_ua, pid) = SCARG(uap, pid) == 0 ? WAIT_ANY : SCARG(uap, pid);
    202 	SCARG(&bsd_ua, status) = SCARG(uap, status);
    203 	SCARG(&bsd_ua, options) = SCARG(uap, options);
    204 	SCARG(&bsd_ua, rusage) = SCARG(uap, rusage);
    205 
    206 	return compat_50_netbsd32_wait4(l, &bsd_ua, retval);
    207 }
    208 
    209 int
    210 sunos32_sys_creat(struct lwp *l, const struct sunos32_sys_creat_args *uap, register_t *retval)
    211 {
    212 	/* {
    213 		syscallarg(const netbsd32_charp) path;
    214 		syscallarg(int) mode;
    215 	} */
    216 	struct sys_open_args ua;
    217 
    218 	SUNOS32TOP_UAP(path, const char);
    219 	SCARG(&ua, flags) = O_WRONLY | O_CREAT | O_TRUNC;
    220 	SUNOS32TO64_UAP(mode);
    221 
    222 	return (sys_open(l, &ua, retval));
    223 }
    224 
    225 int
    226 sunos32_sys_access(struct lwp *l, const struct sunos32_sys_access_args *uap, register_t *retval)
    227 {
    228 	/* {
    229 		syscallarg(const netbsd32_charp) path;
    230 		syscallarg(int) flags;
    231 	} */
    232 	struct sys_access_args ua;
    233 
    234 	SUNOS32TOP_UAP(path, const char);
    235 	SUNOS32TO64_UAP(flags);
    236 
    237 	return (sys_access(l, &ua, retval));
    238 }
    239 
    240 static inline void sunos32_from___stat13(struct stat *, struct netbsd32_stat43 *);
    241 
    242 static inline void
    243 sunos32_from___stat13(struct stat *sbp, struct netbsd32_stat43 *sb32p)
    244 {
    245 	memset(sb32p, 0, sizeof(*sb32p));
    246 	sb32p->st_dev = sbp->st_dev;
    247 	sb32p->st_ino = sbp->st_ino;
    248 	sb32p->st_mode = sbp->st_mode;
    249 	sb32p->st_nlink = sbp->st_nlink;
    250 	sb32p->st_uid = sbp->st_uid;
    251 	sb32p->st_gid = sbp->st_gid;
    252 	sb32p->st_rdev = sbp->st_rdev;
    253 	if (sbp->st_size < (quad_t)1 << 32)
    254 		sb32p->st_size = sbp->st_size;
    255 	else
    256 		sb32p->st_size = -2;
    257 	sb32p->st_atimespec.tv_sec = (netbsd32_time_t)sbp->st_atimespec.tv_sec;
    258 	sb32p->st_atimespec.tv_nsec = (netbsd32_long)sbp->st_atimespec.tv_nsec;
    259 	sb32p->st_mtimespec.tv_sec = (netbsd32_time_t)sbp->st_mtimespec.tv_sec;
    260 	sb32p->st_mtimespec.tv_nsec = (netbsd32_long)sbp->st_mtimespec.tv_nsec;
    261 	sb32p->st_ctimespec.tv_sec = (netbsd32_time_t)sbp->st_ctimespec.tv_sec;
    262 	sb32p->st_ctimespec.tv_nsec = (netbsd32_long)sbp->st_ctimespec.tv_nsec;
    263 	sb32p->st_blksize = sbp->st_blksize;
    264 	sb32p->st_blocks = sbp->st_blocks;
    265 	sb32p->st_flags = sbp->st_flags;
    266 	sb32p->st_gen = sbp->st_gen;
    267 }
    268 
    269 
    270 int
    271 sunos32_sys_stat(struct lwp *l, const struct sunos32_sys_stat_args *uap, register_t *retval)
    272 {
    273 	/* {
    274 		syscallarg(const netbsd32_charp) path;
    275 		syscallarg(netbsd32_stat43p_t) ub;
    276 	} */
    277 	struct netbsd32_stat43 sb32;
    278 	struct stat sb;
    279 	const char *path;
    280 	int error;
    281 
    282 	path = SCARG_P32(uap, path);
    283 
    284 	error = do_sys_stat(path, FOLLOW, &sb);
    285 	if (error)
    286 		return (error);
    287 	sunos32_from___stat13(&sb, &sb32);
    288 	error = copyout(&sb32, SCARG_P32(uap, ub), sizeof (sb32));
    289 	return (error);
    290 }
    291 
    292 int
    293 sunos32_sys_lstat(struct lwp *l, const struct sunos32_sys_lstat_args *uap, register_t *retval)
    294 {
    295 	/* {
    296 		syscallarg(const netbsd32_charp) path;
    297 		syscallarg(netbsd32_stat43p_t) ub;
    298 	} */
    299 	struct stat sb;
    300 	struct netbsd32_stat43 sb32;
    301 	int error;
    302 
    303 	error = do_sys_stat(SCARG_P32(uap, path), NOFOLLOW, &sb);
    304 	if (error)
    305 		return error;
    306 
    307 	/*
    308 	 * For symbolic links, SunOS returned the attributes of its
    309 	 * containing directory, except for mode, size, and links.
    310 	 * This is no longer emulated, the parent directory is not consulted.
    311 	 */
    312 	sunos32_from___stat13(&sb, &sb32);
    313 	error = copyout((void *)&sb32, SCARG_P32(uap, ub), sizeof (sb32));
    314 	return (error);
    315 }
    316 
    317 static int
    318 sunos32_execve_fetch_element(char * const *array, size_t index, char **value)
    319 {
    320 	int error;
    321 	netbsd32_charp const *a32 = (void const *)array;
    322 	netbsd32_charp e;
    323 
    324 	error = copyin(a32 + index, &e, sizeof(e));
    325 	if (error)
    326 		return error;
    327 	*value = NETBSD32PTR64(e);
    328 	return 0;
    329 }
    330 
    331 int
    332 sunos32_sys_execv(struct lwp *l, const struct sunos32_sys_execv_args *uap, register_t *retval)
    333 {
    334 	/* {
    335 		syscallarg(const char *) path;
    336 		syscallarg(char **) argv;
    337 	} */
    338 	const char *path = SCARG_P32(uap, path);
    339 
    340 	return execve1(l, true, path, -1, SCARG_P32(uap, argp), NULL,
    341 	    sunos32_execve_fetch_element);
    342 }
    343 
    344 int
    345 sunos32_sys_execve(struct lwp *l, const struct sunos32_sys_execve_args *uap, register_t *retval)
    346 {
    347 	/* {
    348 		syscallarg(const char *) path;
    349 		syscallarg(char **) argv;
    350 		syscallarg(char **) envp;
    351 	} */
    352 	const char *path = SCARG_P32(uap, path);
    353 
    354 	return execve1(l, true, path, -1, SCARG_P32(uap, argp),
    355 	    SCARG_P32(uap, envp), sunos32_execve_fetch_element);
    356 }
    357 
    358 int
    359 sunos32_sys_omsync(struct lwp *l, const struct sunos32_sys_omsync_args *uap, register_t *retval)
    360 {
    361 	/* {
    362 		syscallarg(netbsd32_caddr_t) addr;
    363 		syscallarg(netbsd32_size_t) len;
    364 		syscallarg(int) flags;
    365 	} */
    366 	struct netbsd32___msync13_args ouap;
    367 
    368 	SCARG(&ouap, addr) = SCARG(uap, addr);
    369 	SCARG(&ouap, len) = SCARG(uap, len);
    370 	SCARG(&ouap, flags) = SCARG(uap, flags);
    371 
    372 	return (netbsd32___msync13(l, &ouap, retval));
    373 }
    374 
    375 int
    376 sunos32_sys_unmount(struct lwp *l, const struct sunos32_sys_unmount_args *uap, register_t *retval)
    377 {
    378 	/* {
    379 		syscallarg(netbsd32_charp) path;
    380 	} */
    381 	struct sys_unmount_args ua;
    382 
    383 	SUNOS32TOP_UAP(path, const char);
    384 	SCARG(&ua, flags) = 0;
    385 
    386 	return (sys_unmount(l, &ua, retval));
    387 }
    388 
    389 /*
    390  * Conversion table for SunOS NFS mount flags.
    391  */
    392 static struct {
    393 	int	sun_flg;
    394 	int	bsd_flg;
    395 } sunnfs_flgtab[] = {
    396 	{ SUNNFS_SOFT,		NFSMNT_SOFT },
    397 	{ SUNNFS_WSIZE,		NFSMNT_WSIZE },
    398 	{ SUNNFS_RSIZE,		NFSMNT_RSIZE },
    399 	{ SUNNFS_TIMEO,		NFSMNT_TIMEO },
    400 	{ SUNNFS_RETRANS,	NFSMNT_RETRANS },
    401 	{ SUNNFS_HOSTNAME,	0 },			/* Ignored */
    402 	{ SUNNFS_INT,		NFSMNT_INT },
    403 	{ SUNNFS_NOAC,		0 },			/* Ignored */
    404 	{ SUNNFS_ACREGMIN,	0 },			/* Ignored */
    405 	{ SUNNFS_ACREGMAX,	0 },			/* Ignored */
    406 	{ SUNNFS_ACDIRMIN,	0 },			/* Ignored */
    407 	{ SUNNFS_ACDIRMAX,	0 },			/* Ignored */
    408 	{ SUNNFS_SECURE,	0 },			/* Ignored */
    409 	{ SUNNFS_NOCTO,		0 },			/* Ignored */
    410 	{ SUNNFS_POSIX,		0 }			/* Ignored */
    411 };
    412 
    413 int
    414 sunos32_sys_mount(struct lwp *l, const struct sunos32_sys_mount_args *uap, register_t *retval)
    415 {
    416 	/* {
    417 		syscallarg(netbsd32_charp) type;
    418 		syscallarg(netbsd32_charp) path;
    419 		syscallarg(int) flags;
    420 		syscallarg(netbsd32_caddr_t) data;
    421 	} */
    422 	int oflags = SCARG(uap, flags), nflags, error;
    423 	char fsname[MFSNAMELEN];
    424 	register_t dummy;
    425 
    426 	if (oflags & (SUNM_NOSUB | SUNM_SYS5))
    427 		return (EINVAL);
    428 	if ((oflags & SUNM_NEWTYPE) == 0)
    429 		return (EINVAL);
    430 	nflags = 0;
    431 	if (oflags & SUNM_RDONLY)
    432 		nflags |= MNT_RDONLY;
    433 	if (oflags & SUNM_NOSUID)
    434 		nflags |= MNT_NOSUID;
    435 	if (oflags & SUNM_REMOUNT)
    436 		nflags |= MNT_UPDATE;
    437 
    438 	error = copyinstr(SCARG_P32(uap, type), fsname, sizeof fsname, NULL);
    439 	if (error)
    440 		return (error);
    441 
    442 	if (strncmp(fsname, "nfs", sizeof fsname) == 0) {
    443 		struct sunos_nfs_args sna;
    444 		struct nfs_args na;	/* XXX */
    445 		int n;
    446 
    447 		error = copyin(SCARG_P32(uap, data), &sna, sizeof sna);
    448 		if (error)
    449 			return (error);
    450 		/* sa.sa_len = sizeof(sain); */
    451 		na.version = NFS_ARGSVERSION;
    452 		na.addr = (void *)sna.addr;
    453 		na.addrlen = sizeof(struct sockaddr);
    454 		na.sotype = SOCK_DGRAM;
    455 		na.proto = IPPROTO_UDP;
    456 		na.fh = sna.fh;
    457 		na.fhsize = NFSX_V2FH;
    458 		na.flags = 0;
    459 		n = sizeof(sunnfs_flgtab) / sizeof(sunnfs_flgtab[0]);
    460 		while (--n >= 0)
    461 			if (sna.flags & sunnfs_flgtab[n].sun_flg)
    462 				na.flags |= sunnfs_flgtab[n].bsd_flg;
    463 		na.wsize = sna.wsize;
    464 		na.rsize = sna.rsize;
    465 		if (na.flags & NFSMNT_RSIZE) {
    466 			na.flags |= NFSMNT_READDIRSIZE;
    467 			na.readdirsize = na.rsize;
    468 		}
    469 		na.timeo = sna.timeo;
    470 		na.retrans = sna.retrans;
    471 		na.hostname = (char *)(u_long)sna.hostname;
    472 
    473 		return do_sys_mount(l, "nfs", UIO_SYSSPACE,
    474 		    SCARG_P32(uap, path), nflags, &na, UIO_SYSSPACE, sizeof na,
    475 		    &dummy);
    476 	}
    477 
    478 	if (strcmp(fsname, "4.2") == 0)
    479 		strcpy(fsname, "ffs");
    480 
    481 	return do_sys_mount(l, fsname, UIO_SYSSPACE,
    482 	    SCARG_P32(uap, path), nflags, SCARG_P32(uap, data), UIO_USERSPACE,
    483 	    0, &dummy);
    484 }
    485 
    486 void	native_to_sunos_sigset(const sigset_t *, int *);
    487 void	sunos_to_native_sigset(const int, sigset_t *);
    488 
    489 inline void
    490 native_to_sunos_sigset(const sigset_t *ss, int *mask)
    491 {
    492 
    493 	*mask = ss->__bits[0];
    494 }
    495 
    496 inline void
    497 sunos_to_native_sigset(const int mask, sigset_t *ss)
    498 {
    499 
    500 	memset(ss, 0, sizeof(*ss));
    501 	ss->__bits[0] = mask;
    502 	ss->__bits[1] = 0;
    503 	ss->__bits[2] = 0;
    504 	ss->__bits[3] = 0;
    505 }
    506 
    507 int
    508 sunos32_sys_sigpending(struct lwp *l, const struct sunos32_sys_sigpending_args *uap, register_t *retval)
    509 {
    510 	/* {
    511 		syscallarg(netbsd32_intp) mask;
    512 	} */
    513 	sigset_t ss;
    514 	int mask;
    515 
    516 	sigpending1(l, &ss);
    517 	native_to_sunos_sigset(&ss, &mask);
    518 
    519 	return (copyout((void *)(u_long)&mask, SCARG_P32(uap, mask), sizeof(int)));
    520 }
    521 
    522 int
    523 sunos32_sys_sigsuspend(struct lwp *l, const struct sunos32_sys_sigsuspend_args *uap, register_t *retval)
    524 {
    525 	/* {
    526 		syscallarg(int) mask;
    527 	} */
    528 	int mask;
    529 	sigset_t ss;
    530 
    531 	mask = SCARG(uap, mask);
    532 	sunos_to_native_sigset(mask, &ss);
    533 	return (sigsuspend1(l, &ss));
    534 }
    535 
    536 /*
    537  * Read Sun-style directory entries.  We suck them into kernel space so
    538  * that they can be massaged before being copied out to user code.  Like
    539  * SunOS, we squish out `empty' entries.
    540  *
    541  * This is quite ugly, but what do you expect from compatibility code?
    542  */
    543 int
    544 sunos32_sys_getdents(struct lwp *l, const struct sunos32_sys_getdents_args *uap, register_t *retval)
    545 {
    546 	/* {
    547 		syscallarg(int) fd;
    548 		syscallarg(netbsd32_charp) buf;
    549 		syscallarg(int) nbytes;
    550 	} */
    551 	struct dirent *bdp;
    552 	struct vnode *vp;
    553 	char *inp, *sbuf;	/* BSD-format */
    554 	int len, reclen;	/* BSD-format */
    555 	char *outp;		/* Sun-format */
    556 	int resid, sunos_reclen;/* Sun-format */
    557 	struct file *fp;
    558 	struct uio auio;
    559 	struct iovec aiov;
    560 	struct sunos32_dirent idb;
    561 	off_t off;			/* true file offset */
    562 	int buflen, error, eofflag;
    563 	off_t *cookiebuf, *cookie;
    564 	int ncookies;
    565 
    566 	/* fd_getvnode() will use the descriptor for us */
    567 	if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
    568 		return (error);
    569 
    570 	if ((fp->f_flag & FREAD) == 0) {
    571 		error = EBADF;
    572 		goto out1;
    573 	}
    574 
    575 	vp = fp->f_vnode;
    576 	if (vp->v_type != VDIR) {
    577 		error = EINVAL;
    578 		goto out1;
    579 	}
    580 
    581 	buflen = uimin(MAXBSIZE, SCARG(uap, nbytes));
    582 	sbuf = malloc(buflen, M_TEMP, M_WAITOK);
    583 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
    584 	off = fp->f_offset;
    585 again:
    586 	aiov.iov_base = sbuf;
    587 	aiov.iov_len = buflen;
    588 	auio.uio_iov = &aiov;
    589 	auio.uio_iovcnt = 1;
    590 	auio.uio_rw = UIO_READ;
    591 	auio.uio_resid = buflen;
    592 	auio.uio_offset = off;
    593 	UIO_SETUP_SYSSPACE(&auio);
    594 	/*
    595 	 * First we read into the malloc'ed buffer, then
    596 	 * we massage it into user space, one record at a time.
    597 	 */
    598 	error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &cookiebuf,
    599 	    &ncookies);
    600 	if (error)
    601 		goto out;
    602 
    603 	inp = sbuf;
    604 	outp = SCARG_P32(uap, buf);
    605 	resid = SCARG(uap, nbytes);
    606 	if ((len = buflen - auio.uio_resid) == 0)
    607 		goto eof;
    608 
    609 	for (cookie = cookiebuf; len > 0; len -= reclen) {
    610 		bdp = (struct dirent *)inp;
    611 		reclen = bdp->d_reclen;
    612 		if (reclen & 3) {
    613 			error = EIO;
    614 			goto out;
    615 		}
    616 		if (cookie && (*cookie >> 32) != 0) {
    617 			compat_offseterr(vp, "sunos_getdents");
    618 			error = EINVAL;
    619 			goto out;
    620 		}
    621 		if (bdp->d_fileno == 0) {
    622 			inp += reclen;	/* it is a hole; squish it out */
    623 			if (cookie)
    624 				off = *cookie++;
    625 			else
    626 				off += reclen;
    627 			continue;
    628 		}
    629 		memset(&idb, 0, sizeof(idb));
    630 		sunos_reclen = SUNOS32_RECLEN(&idb, bdp->d_namlen);
    631 		if (reclen > len || resid < sunos_reclen) {
    632 			/* entry too big for buffer, so just stop */
    633 			outp++;
    634 			break;
    635 		}
    636 		if (cookie)
    637 			off = *cookie++;	/* each entry points to next */
    638 		else
    639 			off += reclen;
    640 		/*
    641 		 * Massage in place to make a Sun-shaped dirent (otherwise
    642 		 * we have to worry about touching user memory outside of
    643 		 * the copyout() call).
    644 		 */
    645 		idb.d_fileno = bdp->d_fileno;
    646 		idb.d_off = off;
    647 		idb.d_reclen = sunos_reclen;
    648 		idb.d_namlen = bdp->d_namlen;
    649 		strlcpy(idb.d_name, bdp->d_name, sizeof(idb.d_name));
    650 		if ((error = copyout((void *)&idb, outp, sunos_reclen)) != 0)
    651 			goto out;
    652 		/* advance past this real entry */
    653 		inp += reclen;
    654 		/* advance output past Sun-shaped entry */
    655 		outp += sunos_reclen;
    656 		resid -= sunos_reclen;
    657 	}
    658 
    659 	/* if we squished out the whole block, try again */
    660 	if (outp == SCARG_P32(uap, buf)) {
    661 		if (cookiebuf)
    662 			free(cookiebuf, M_TEMP);
    663 		cookiebuf = NULL;
    664 		goto again;
    665 	}
    666 	fp->f_offset = off;		/* update the vnode offset */
    667 
    668 eof:
    669 	*retval = SCARG(uap, nbytes) - resid;
    670 out:
    671 	VOP_UNLOCK(vp);
    672 	free(cookiebuf, M_TEMP);
    673 	free(sbuf, M_TEMP);
    674  out1:
    675  	fd_putfile(SCARG(uap, fd));
    676 	return (error);
    677 }
    678 
    679 #define	SUNOS32__MAP_NEW	0x80000000	/* if not, old mmap & cannot handle */
    680 
    681 int
    682 sunos32_sys_mmap(struct lwp *l, const struct sunos32_sys_mmap_args *uap, register_t *retval)
    683 {
    684 	/* {
    685 		syscallarg(netbsd32_voidp) addr;
    686 		syscallarg(netbsd32_size_t) len;
    687 		syscallarg(int) prot;
    688 		syscallarg(int) flags;
    689 		syscallarg(int) fd;
    690 		syscallarg(netbsd32_long) pos;
    691 	} */
    692 	struct sys_mmap_args ua;
    693 	int error;
    694 
    695 	/*
    696 	 * Verify the arguments.
    697 	 */
    698 	if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC))
    699 		return (EINVAL);			/* XXX still needed? */
    700 
    701 	if ((SCARG(uap, flags) & SUNOS32__MAP_NEW) == 0)
    702 		return (EINVAL);
    703 
    704 	SUNOS32TOP_UAP(addr, void);
    705 	SUNOS32TOX_UAP(len, size_t);
    706 	SUNOS32TO64_UAP(prot);
    707 	SCARG(&ua, flags) = SCARG(uap, flags) & ~SUNOS32__MAP_NEW;
    708 	SUNOS32TO64_UAP(fd);
    709 	SCARG(&ua, PAD) = 0;
    710 	SUNOS32TOX_UAP(pos, off_t);
    711 
    712 	error = sys_mmap(l, &ua, retval);
    713 	if ((u_long)*retval > (u_long)UINT_MAX) {
    714 		printf("sunos32_mmap: retval out of range: 0x%lx\n",
    715 		       (u_long)*retval);
    716 		/* Should try to recover and return an error here. */
    717 	}
    718 	return (error);
    719 }
    720 
    721 #define	MC_SYNC		1
    722 #define	MC_LOCK		2
    723 #define	MC_UNLOCK	3
    724 #define	MC_ADVISE	4
    725 #define	MC_LOCKAS	5
    726 #define	MC_UNLOCKAS	6
    727 
    728 int
    729 sunos32_sys_mctl(struct lwp *l, const struct sunos32_sys_mctl_args *uap, register_t *retval)
    730 {
    731 	/* {
    732 		syscallarg(netbsd32_voidp) addr;
    733 		syscallarg(int) len;
    734 		syscallarg(int) func;
    735 		syscallarg(netbsd32_voidp) arg;
    736 	} */
    737 
    738 	switch (SCARG(uap, func)) {
    739 	case MC_ADVISE:		/* ignore for now */
    740 		return (0);
    741 	case MC_SYNC:		/* translate to msync */
    742 		return (netbsd32___msync13(l, (const void *)uap, retval));
    743 	default:
    744 		return (EINVAL);
    745 	}
    746 }
    747 
    748 int
    749 sunos32_sys_setsockopt(struct lwp *l, const struct sunos32_sys_setsockopt_args *uap, register_t *retval)
    750 {
    751 	/* {
    752 		syscallarg(int) s;
    753 		syscallarg(int) level;
    754 		syscallarg(int) name;
    755 		syscallarg(netbsd32_caddr_t) val;
    756 		syscallarg(int) valsize;
    757 	} */
    758 	struct sockopt sopt;
    759 	struct socket *so;
    760 	int name = SCARG(uap, name);
    761 	int error;
    762 
    763 	/* fd_getsock() will use the descriptor for us */
    764 	if ((error = fd_getsock(SCARG(uap, s), &so)) != 0)
    765 		return (error);
    766 #define	SO_DONTLINGER (~SO_LINGER)
    767 	if (name == SO_DONTLINGER) {
    768 		struct linger lg;
    769 
    770 		lg.l_onoff = 0;
    771 		error = so_setsockopt(l, so, SCARG(uap, level), SO_LINGER,
    772 		    &lg, sizeof(lg));
    773 		goto out;
    774 	}
    775 	if (SCARG(uap, level) == IPPROTO_IP) {
    776 #define		SUNOS_IP_MULTICAST_IF		2
    777 #define		SUNOS_IP_MULTICAST_TTL		3
    778 #define		SUNOS_IP_MULTICAST_LOOP		4
    779 #define		SUNOS_IP_ADD_MEMBERSHIP		5
    780 #define		SUNOS_IP_DROP_MEMBERSHIP	6
    781 		static const int ipoptxlat[] = {
    782 			IP_MULTICAST_IF,
    783 			IP_MULTICAST_TTL,
    784 			IP_MULTICAST_LOOP,
    785 			IP_ADD_MEMBERSHIP,
    786 			IP_DROP_MEMBERSHIP
    787 		};
    788 		if (name >= SUNOS_IP_MULTICAST_IF &&
    789 		    name <= SUNOS_IP_DROP_MEMBERSHIP) {
    790 			name = ipoptxlat[name - SUNOS_IP_MULTICAST_IF];
    791 		}
    792 	}
    793 	if ((unsigned)SCARG(uap, valsize) > MLEN) {
    794 		error = EINVAL;
    795 		goto out;
    796 	}
    797 	sockopt_init(&sopt, SCARG(uap, level), name, SCARG(uap, valsize));
    798 	if (SCARG_P32(uap, val)) {
    799 		error = copyin(SCARG_P32(uap, val), sopt.sopt_data,
    800 		    (u_int)SCARG(uap, valsize));
    801 	}
    802 	if (error == 0)
    803 		error = sosetopt(so, &sopt);
    804 	sockopt_destroy(&sopt);
    805  out:
    806  	fd_putfile(SCARG(uap, s));
    807 	return (error);
    808 }
    809 
    810 static inline int sunos32_sys_socket_common(struct lwp *, register_t *,
    811 					      int type);
    812 static inline int
    813 sunos32_sys_socket_common(struct lwp *l, register_t *retval, int type)
    814 {
    815 	struct socket *so;
    816 	int error, fd;
    817 
    818 	/* fd_getsock() will use the descriptor for us */
    819 	fd = (int)*retval;
    820 	if ((error = fd_getsock(fd, &so)) == 0) {
    821 		if (type == SOCK_DGRAM)
    822 			so->so_options |= SO_BROADCAST;
    823 		fd_putfile(fd);
    824 	}
    825 	return (error);
    826 }
    827 
    828 int
    829 sunos32_sys_socket(struct lwp *l, const struct sunos32_sys_socket_args *uap, register_t *retval)
    830 {
    831 	/* {
    832 		syscallarg(int) domain;
    833 		syscallarg(int) type;
    834 		syscallarg(int) protocol;
    835 	} */
    836 	int error;
    837 
    838 	error = netbsd32___socket30(l, (const void *)uap, retval);
    839 	if (error)
    840 		return (error);
    841 	return sunos32_sys_socket_common(l, retval, SCARG(uap, type));
    842 }
    843 
    844 int
    845 sunos32_sys_socketpair(struct lwp *l, const struct sunos32_sys_socketpair_args *uap, register_t *retval)
    846 {
    847 	/* {
    848 		syscallarg(int) domain;
    849 		syscallarg(int) type;
    850 		syscallarg(int) protocol;
    851 		syscallarg(int *) rsv;
    852 	} */
    853 	int error;
    854 
    855 	error = netbsd32_socketpair(l, (const void *)uap, retval);
    856 	if (error)
    857 		return (error);
    858 	return sunos32_sys_socket_common(l, retval, SCARG(uap, type));
    859 }
    860 
    861 
    862 /*
    863  * XXX: This needs cleaning up.
    864  */
    865 int
    866 sunos32_sys_auditsys(struct lwp *l, const struct sunos32_sys_auditsys_args *uap, register_t *retval)
    867 {
    868 	return 0;
    869 }
    870 
    871 int
    872 sunos32_sys_uname(struct lwp *l, const struct sunos32_sys_uname_args *uap, register_t *retval)
    873 {
    874 	/* {
    875 		syscallarg(sunos32_utsnamep_t) name;
    876 	} */
    877 	struct sunos_utsname sut;
    878 
    879 	memset(&sut, 0, sizeof(sut));
    880 
    881 	strlcpy(sut.sysname, ostype, sizeof(sut.sysname));
    882 	strlcpy(sut.nodename, hostname, sizeof(sut.nodename));
    883 	strlcpy(sut.release, osrelease, sizeof(sut.release));
    884 	strlcpy(sut.version, "1", sizeof(sut.version));
    885 	strlcpy(sut.machine, machine, sizeof(sut.machine));
    886 
    887 	return copyout(&sut, SCARG_P32(uap, name), sizeof(sut));
    888 }
    889 
    890 int
    891 sunos32_sys_setpgrp(struct lwp *l, const struct sunos32_sys_setpgrp_args *uap, register_t *retval)
    892 {
    893 	/* {
    894 		syscallarg(int) pid;
    895 		syscallarg(int) pgid;
    896 	} */
    897 	struct proc *p = l->l_proc;
    898 
    899 	/*
    900 	 * difference to our setpgid call is to include backwards
    901 	 * compatibility to pre-setsid() binaries. Do setsid()
    902 	 * instead of setpgid() in those cases where the process
    903 	 * tries to create a new session the old way.
    904 	 */
    905 	if (!SCARG(uap, pgid) &&
    906 	    (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid))
    907 		return sys_setsid(l, NULL, retval);
    908 	else
    909 		return netbsd32_setpgid(l, (const void *)uap, retval);
    910 }
    911 
    912 int
    913 sunos32_sys_open(struct lwp *l, const struct sunos32_sys_open_args *uap, register_t *retval)
    914 {
    915 	/* {
    916 		syscallarg(const netbsd32_charp) path;
    917 		syscallarg(int) flags;
    918 		syscallarg(int) mode;
    919 	} */
    920 	struct proc *p = l->l_proc;
    921 	struct sys_open_args ua;
    922 	int lf, r;
    923 	int noctty;
    924 	int ret;
    925 
    926 	/* convert mode into NetBSD mode */
    927 	lf = SCARG(uap, flags);
    928 	noctty = lf & 0x8000;
    929 	r =	(lf & (0x0001 | 0x0002 | 0x0008 | 0x0040 | 0x0200 | 0x0400 | 0x0800));
    930 	r |=	((lf & (0x0004 | 0x1000 | 0x4000)) ? O_NONBLOCK : 0);
    931 	r |=	((lf & 0x0080) ? O_SHLOCK : 0);
    932 	r |=	((lf & 0x0100) ? O_EXLOCK : 0);
    933 	r |=	((lf & 0x2000) ? O_FSYNC : 0);
    934 
    935 	SUNOS32TOP_UAP(path, const char);
    936 	SCARG(&ua, flags) = r;
    937 	SUNOS32TO64_UAP(mode);
    938 
    939 	ret = sys_open(l, &ua, retval);
    940 
    941 	/* XXXSMP unlocked */
    942 	if (!ret && !noctty && SESS_LEADER(p) && !(p->p_lflag & PL_CONTROLT)) {
    943 		file_t *fp;
    944 		int fd;
    945 
    946 		fd = (int)*retval;
    947 		fp = fd_getfile(fd);
    948 
    949 		/* ignore any error, just give it a try */
    950 		if (fp != NULL) {
    951 			if (fp->f_type == DTYPE_VNODE)
    952 				(fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, NULL);
    953 			fd_putfile(fd);
    954 		}
    955 	}
    956 	return ret;
    957 }
    958 
    959 int
    960 sunos32_sys_ustat(struct lwp *l, const struct sunos32_sys_ustat_args *uap, register_t *retval)
    961 {
    962 	/* {
    963 		syscallarg(int) dev;
    964 		syscallarg(sunos32_ustatp_t) buf;
    965 	} */
    966 	struct sunos_ustat us;
    967 	int error;
    968 
    969 	memset(&us, 0, sizeof us);
    970 
    971 	/*
    972 	 * XXX: should set f_tfree and f_tinode at least
    973 	 * How do we translate dev -> fstat? (and then to sunos_ustat)
    974 	 */
    975 
    976 	if ((error = copyout(&us, SCARG_P32(uap, buf), sizeof us)) != 0)
    977 		return (error);
    978 	return 0;
    979 }
    980 
    981 int
    982 sunos32_sys_quotactl(struct lwp *l, const struct sunos32_sys_quotactl_args *uap, register_t *retval)
    983 {
    984 
    985 	return EINVAL;
    986 }
    987 
    988 int
    989 sunos32_sys_vhangup(struct lwp *l, const void *v, register_t *retval)
    990 {
    991 	struct proc *p = l->l_proc;
    992 	struct session *sp = p->p_session;
    993 
    994 	if (sp->s_ttyvp == 0)
    995 		return 0;
    996 
    997 	if (sp->s_ttyp && sp->s_ttyp->t_session == sp && sp->s_ttyp->t_pgrp)
    998 		pgsignal(sp->s_ttyp->t_pgrp, SIGHUP, 1);
    999 
   1000 	(void) ttywait(sp->s_ttyp);
   1001 	if (sp->s_ttyvp)
   1002 		VOP_REVOKE(sp->s_ttyvp, REVOKEALL);
   1003 	if (sp->s_ttyvp)
   1004 		vrele(sp->s_ttyvp);
   1005 	sp->s_ttyvp = NULL;
   1006 
   1007 	return 0;
   1008 }
   1009 
   1010 static int
   1011 sunstatfs(struct statvfs *sp, void *sbuf)
   1012 {
   1013 	struct sunos_statfs ssfs;
   1014 
   1015 	memset(&ssfs, 0, sizeof ssfs);
   1016 	ssfs.f_type = 0;
   1017 	ssfs.f_bsize = sp->f_bsize;
   1018 	ssfs.f_blocks = sp->f_blocks;
   1019 	ssfs.f_bfree = sp->f_bfree;
   1020 	ssfs.f_bavail = sp->f_bavail;
   1021 	ssfs.f_files = sp->f_files;
   1022 	ssfs.f_ffree = sp->f_ffree;
   1023 	ssfs.f_fsid = sp->f_fsidx;
   1024 	return copyout((void *)&ssfs, sbuf, sizeof ssfs);
   1025 }
   1026 
   1027 int
   1028 sunos32_sys_statfs(struct lwp *l, const struct sunos32_sys_statfs_args *uap, register_t *retval)
   1029 {
   1030 	/* {
   1031 		syscallarg(const netbsd32_charp) path;
   1032 		syscallarg(sunos32_statfsp_t) buf;
   1033 	} */
   1034 	struct statvfs *sp;
   1035 	int error;
   1036 
   1037 	sp = STATVFSBUF_GET();
   1038 	error = do_sys_pstatvfs(l, SCARG_P32(uap, path), 0, sp);
   1039 	if (error == 0)
   1040 		error = sunstatfs(sp, SCARG_P32(uap, buf));
   1041 	STATVFSBUF_PUT(sp);
   1042 	return error;
   1043 }
   1044 
   1045 int
   1046 sunos32_sys_fstatfs(struct lwp *l, const struct sunos32_sys_fstatfs_args *uap, register_t *retval)
   1047 {
   1048 	/* {
   1049 		syscallarg(int) fd;
   1050 		syscallarg(sunos32_statfsp_t) buf;
   1051 	} */
   1052 	struct statvfs *sp;
   1053 	int error;
   1054 
   1055 	sp = STATVFSBUF_GET();
   1056 	error = do_sys_fstatvfs(l, SCARG(uap, fd), 0, sp);
   1057 	if (error == 0)
   1058 		error = sunstatfs(sp, SCARG_P32(uap, buf));
   1059 	STATVFSBUF_PUT(sp);
   1060 	return error;
   1061 }
   1062 
   1063 int
   1064 sunos32_sys_exportfs(struct lwp *l, const struct sunos32_sys_exportfs_args *uap, register_t *retval)
   1065 {
   1066 	/*
   1067 	 * XXX: should perhaps translate into a mount(2)
   1068 	 * with MOUNT_EXPORT?
   1069 	 */
   1070 	return 0;
   1071 }
   1072 
   1073 int
   1074 sunos32_sys_mknod(struct lwp *l, const struct sunos32_sys_mknod_args *uap, register_t *retval)
   1075 {
   1076 	/* {
   1077 		syscallarg(const netbsd32_charp) path;
   1078 		syscallarg(int) mode;
   1079 		syscallarg(int) dev;
   1080 	} */
   1081 
   1082 	if (S_ISFIFO(SCARG(uap, mode)))
   1083 		return netbsd32_mkfifo(l, (const struct netbsd32_mkfifo_args *)uap, retval);
   1084 
   1085 	return compat_50_netbsd32_mknod(l, (const struct compat_50_netbsd32_mknod_args *)uap, retval);
   1086 }
   1087 
   1088 #define SUNOS_SC_ARG_MAX	1
   1089 #define SUNOS_SC_CHILD_MAX	2
   1090 #define SUNOS_SC_CLK_TCK	3
   1091 #define SUNOS_SC_NGROUPS_MAX	4
   1092 #define SUNOS_SC_OPEN_MAX	5
   1093 #define SUNOS_SC_JOB_CONTROL	6
   1094 #define SUNOS_SC_SAVED_IDS	7
   1095 #define SUNOS_SC_VERSION	8
   1096 
   1097 int
   1098 sunos32_sys_sysconf(struct lwp *l, const struct sunos32_sys_sysconf_args *uap, register_t *retval)
   1099 {
   1100 	/* {
   1101 		syscallarg(int) name;
   1102 	} */
   1103 	extern u_int maxfiles;
   1104 
   1105 	switch(SCARG(uap, name)) {
   1106 	case SUNOS_SC_ARG_MAX:
   1107 		*retval = ARG_MAX;
   1108 		break;
   1109 	case SUNOS_SC_CHILD_MAX:
   1110 		*retval = maxproc;
   1111 		break;
   1112 	case SUNOS_SC_CLK_TCK:
   1113 		*retval = 60;		/* should this be `hz', ie. 100? */
   1114 		break;
   1115 	case SUNOS_SC_NGROUPS_MAX:
   1116 		*retval = NGROUPS_MAX;
   1117 		break;
   1118 	case SUNOS_SC_OPEN_MAX:
   1119 		*retval = maxfiles;
   1120 		break;
   1121 	case SUNOS_SC_JOB_CONTROL:
   1122 		*retval = 1;
   1123 		break;
   1124 	case SUNOS_SC_SAVED_IDS:
   1125 #ifdef _POSIX_SAVED_IDS
   1126 		*retval = 1;
   1127 #else
   1128 		*retval = 0;
   1129 #endif
   1130 		break;
   1131 	case SUNOS_SC_VERSION:
   1132 		*retval = 198808;
   1133 		break;
   1134 	default:
   1135 		return EINVAL;
   1136 	}
   1137 	return 0;
   1138 }
   1139 
   1140 #define SUNOS_RLIMIT_NOFILE	6	/* Other RLIMIT_* are the same */
   1141 #define SUNOS_RLIM_NLIMITS	7
   1142 
   1143 int
   1144 sunos32_sys_getrlimit(struct lwp *l, const struct sunos32_sys_getrlimit_args *uap, register_t *retval)
   1145 {
   1146 	/* {
   1147 		syscallarg(u_int) which;
   1148 		syscallarg(netbsd32_orlimitp_t) rlp;
   1149 	} */
   1150 	struct compat_43_netbsd32_ogetrlimit_args ua_43;
   1151 
   1152 	if (SCARG(uap, which) >= SUNOS_RLIM_NLIMITS)
   1153 		return EINVAL;
   1154 
   1155 	SCARG(&ua_43, which) = SCARG(uap, which) == SUNOS_RLIMIT_NOFILE ? RLIMIT_NOFILE : SCARG(uap, which);
   1156 	SCARG(&ua_43, rlp) = SCARG(uap, rlp);
   1157 
   1158 	return compat_43_netbsd32_ogetrlimit(l, &ua_43, retval);
   1159 }
   1160 
   1161 int
   1162 sunos32_sys_setrlimit(struct lwp *l, const struct sunos32_sys_setrlimit_args *uap, register_t *retval)
   1163 {
   1164 	/* {
   1165 		syscallarg(u_int) which;
   1166 		syscallarg(netbsd32_orlimitp_t) rlp;
   1167 	} */
   1168 	struct compat_43_netbsd32_osetrlimit_args ua_43;
   1169 
   1170 	if (SCARG(uap, which) >= SUNOS_RLIM_NLIMITS)
   1171 		return EINVAL;
   1172 
   1173 	SCARG(&ua_43, which) = SCARG(uap, which) == SUNOS_RLIMIT_NOFILE ? RLIMIT_NOFILE : SCARG(uap, which);
   1174 	SCARG(&ua_43, rlp) = SCARG(uap, rlp);
   1175 
   1176 	return compat_43_netbsd32_osetrlimit(l, &ua_43, retval);
   1177 }
   1178 
   1179 /* for the m68k machines */
   1180 #ifndef PT_GETFPREGS
   1181 #define PT_GETFPREGS -1
   1182 #endif
   1183 #ifndef PT_SETFPREGS
   1184 #define PT_SETFPREGS -1
   1185 #endif
   1186 
   1187 static const int sreq2breq[] = {
   1188 	PT_TRACE_ME,    PT_READ_I,      PT_READ_D,      -1,
   1189 	PT_WRITE_I,     PT_WRITE_D,     -1,             PT_CONTINUE,
   1190 	PT_KILL,        -1,             PT_ATTACH,      PT_DETACH,
   1191 	PT_GETREGS,     PT_SETREGS,     PT_GETFPREGS,   PT_SETFPREGS
   1192 };
   1193 static const size_t nreqs = __arraycount(sreq2breq);
   1194 
   1195 int
   1196 sunos32_sys_ptrace(struct lwp *l, const struct sunos32_sys_ptrace_args *uap, register_t *retval)
   1197 {
   1198 	/* {
   1199 		syscallarg(int) req;
   1200 		syscallarg(pid_t) pid;
   1201 		syscallarg(netbsd32_caddr_t) addr;
   1202 		syscallarg(int) data;
   1203 		syscallarg(netbsd32_charp) addr2;
   1204 	} */
   1205 	struct netbsd32_ptrace_args pa;
   1206 	int req;
   1207 
   1208 #define sys_ptrace sysent[SYS_ptrace].sy_call
   1209 	if (sys_ptrace == sys_nosys)
   1210 		return ENOSYS;
   1211 
   1212 	req = SCARG(uap, req);
   1213 	if ((unsigned int)req >= nreqs)
   1214 		return (EINVAL);
   1215 
   1216 	req = sreq2breq[req];
   1217 	if (req == -1)
   1218 		return (EINVAL);
   1219 
   1220 	SCARG(&pa, req) = req;
   1221 	SCARG(&pa, pid) = (pid_t)SCARG(uap, pid);
   1222 	SCARG(&pa, addr) = SCARG(uap, addr);
   1223 	SCARG(&pa, data) = SCARG(uap, data);
   1224 
   1225 	return netbsd32_ptrace(l, &pa, retval);
   1226 }
   1227 
   1228 /*
   1229  * SunOS reboot system call (for compatibility).
   1230  * Sun lets you pass in a boot string which the PROM
   1231  * saves and provides to the next boot program.
   1232  */
   1233 
   1234 #define SUNOS_RB_ASKNAME	0x001
   1235 #define SUNOS_RB_SINGLE 	0x002
   1236 #define SUNOS_RB_NOSYNC		0x004
   1237 #define SUNOS_RB_HALT		0x008
   1238 #define SUNOS_RB_DUMP		0x080
   1239 #define	SUNOS_RB_STRING		0x200
   1240 
   1241 static struct sunos_howto_conv {
   1242 	int sun_howto;
   1243 	int bsd_howto;
   1244 } sunos_howto_conv[] = {
   1245 	{ SUNOS_RB_ASKNAME,	RB_ASKNAME },
   1246 	{ SUNOS_RB_SINGLE,	RB_SINGLE },
   1247 	{ SUNOS_RB_NOSYNC,	RB_NOSYNC },
   1248 	{ SUNOS_RB_HALT,	RB_HALT },
   1249 	{ SUNOS_RB_DUMP,	RB_DUMP },
   1250 	{ SUNOS_RB_STRING,	RB_STRING },
   1251 	{ 0x000,		0 },
   1252 };
   1253 
   1254 int
   1255 sunos32_sys_reboot(struct lwp *l, const struct sunos32_sys_reboot_args *uap, register_t *retval)
   1256 {
   1257 	/* {
   1258 		syscallarg(int) howto;
   1259 		syscallarg(netbsd32_charp) bootstr;
   1260 	} */
   1261 	struct sys_reboot_args ua;
   1262 	struct sunos_howto_conv *convp;
   1263 	int error, bsd_howto, sun_howto;
   1264 	char *bootstr;
   1265 
   1266 	if ((error = kauth_authorize_system(l->l_cred,
   1267 	    KAUTH_SYSTEM_REBOOT, 0, NULL, NULL, NULL)) != 0)
   1268 		return (error);
   1269 
   1270 	/*
   1271 	 * Convert howto bits to BSD format.
   1272 	 */
   1273 	sun_howto = SCARG(uap, howto);
   1274 	bsd_howto = 0;
   1275 	convp = sunos_howto_conv;
   1276 	while (convp->sun_howto) {
   1277 		if (sun_howto & convp->sun_howto)
   1278 			bsd_howto |= convp->bsd_howto;
   1279 		convp++;
   1280 	}
   1281 
   1282 	/*
   1283 	 * Sun RB_STRING (Get user supplied bootstring.)
   1284 	 * If the machine supports passing a string to the
   1285 	 * next booted kernel.
   1286 	 */
   1287 	if (sun_howto & SUNOS_RB_STRING)
   1288 		bootstr = SCARG_P32(uap, bootstr);
   1289 	else
   1290 		bootstr = NULL;
   1291 
   1292 	SCARG(&ua, opt) = bsd_howto;
   1293 	SCARG(&ua, bootstr) = bootstr;
   1294 	return (sys_reboot(l, &ua, retval));
   1295 }
   1296 
   1297 /*
   1298  * Generalized interface signal handler, 4.3-compatible.
   1299  */
   1300 /* ARGSUSED */
   1301 int
   1302 sunos32_sys_sigvec(struct lwp *l, const struct sunos32_sys_sigvec_args *uap, register_t *retval)
   1303 {
   1304 	/* {
   1305 		syscallarg(int) signum;
   1306 		syscallarg(struct sigvec *) nsv;
   1307 		syscallarg(struct sigvec *) osv;
   1308 	} */
   1309 	struct netbsd32_sigvec sv;
   1310 	struct sigaction nsa, osa;
   1311 	int error;
   1312 
   1313 	if (SCARG_P32(uap, nsv)) {
   1314 		error = copyin(SCARG_P32(uap, nsv), &sv, sizeof(sv));
   1315 		if (error != 0)
   1316 			return (error);
   1317 
   1318 		/*
   1319 		 * SunOS uses the mask 0x0004 as SV_RESETHAND
   1320 		 * meaning: `reset to SIG_DFL on delivery'.
   1321 		 * We support only the bits in: 0xF
   1322 		 * (those bits are the same as ours)
   1323 		 */
   1324 		if (sv.sv_flags & ~0xF)
   1325 			return (EINVAL);
   1326 
   1327 		sunos32_sigvec_to_sigaction(&sv, &nsa);
   1328 	}
   1329 	error = sigaction1(l, SCARG(uap, signum),
   1330 			   SCARG_P32(uap, nsv) ? &nsa : 0,
   1331 			   SCARG_P32(uap, osv) ? &osa : 0,
   1332 			   NULL, 0);
   1333 	if (error != 0)
   1334 		return (error);
   1335 
   1336 	if (SCARG_P32(uap, osv)) {
   1337 		sunos32_sigvec_from_sigaction(&sv, &osa);
   1338 		error = copyout(&sv, SCARG_P32(uap, osv), sizeof(sv));
   1339 		if (error != 0)
   1340 			return (error);
   1341 	}
   1342 
   1343 	return (0);
   1344 }
   1345