xref: /netbsd-src/sys/compat/linux/arch/alpha/linux_osf1.c (revision 21709ad01db1a91e3c201ed96d7d83992cdf0208)
1 /*	$NetBSD: linux_osf1.c,v 1.6 2024/10/01 16:35:41 riastradh Exp $	*/
2 
3 /*
4  * Copyright (c) 1999 Christopher G. Demetriou.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *      This product includes software developed by Christopher G. Demetriou
17  *	for the NetBSD Project.
18  * 4. The name of the author may not be used to endorse or promote products
19  *    derived from this software without specific prior written permission
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: linux_osf1.c,v 1.6 2024/10/01 16:35:41 riastradh Exp $");
35 
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/namei.h>
39 #include <sys/proc.h>
40 #include <sys/file.h>
41 #include <sys/filedesc.h>
42 #include <sys/kernel.h>
43 #include <sys/mount.h>
44 #include <sys/vnode.h>
45 #include <sys/wait.h>
46 #include <sys/select.h>
47 #include <sys/syscallargs.h>
48 #include <sys/vfs_syscalls.h>
49 
50 #include <machine/alpha.h>
51 #include <machine/cpuconf.h>
52 #include <machine/rpb.h>
53 #include <machine/fpu.h>
54 
55 #include <compat/common/compat_util.h>
56 #include <compat/linux/common/linux_types.h>
57 #include <compat/linux/common/linux_signal.h>
58 #include <compat/linux/arch/alpha/linux_signal.h>
59 #include <compat/linux/arch/alpha/linux_osf1.h>
60 #include <compat/linux/linux_syscallargs.h>
61 
62 #include <net/if.h>
63 #include <netinet/in.h>
64 
65 #include <nfs/rpcv2.h>
66 #include <nfs/nfsproto.h>
67 #include <nfs/nfs.h>
68 #include <nfs/nfsmount.h>
69 
70 #include <ufs/ufs/quota.h>
71 #include <ufs/ufs/ufsmount.h>
72 
73 #include <machine/vmparam.h>
74 
75 const struct emul_flags_xtab osf1_wait_options_xtab[] = {
76     {	OSF1_WNOHANG,		OSF1_WNOHANG,		WNOHANG		},
77     {	OSF1_WUNTRACED,		OSF1_WUNTRACED,		WUNTRACED	},
78     {	0								}
79 };
80 
81 const struct emul_flags_xtab osf1_nfs_mount_flags_xtab[] = {
82     {	OSF1_NFSMNT_SOFT,	OSF1_NFSMNT_SOFT,	NFSMNT_SOFT,	},
83     {	OSF1_NFSMNT_WSIZE,	OSF1_NFSMNT_WSIZE,	NFSMNT_WSIZE,	},
84     {	OSF1_NFSMNT_RSIZE,	OSF1_NFSMNT_RSIZE,	NFSMNT_RSIZE,	},
85     {	OSF1_NFSMNT_TIMEO,	OSF1_NFSMNT_TIMEO,	NFSMNT_TIMEO,	},
86     {	OSF1_NFSMNT_RETRANS,	OSF1_NFSMNT_RETRANS,	NFSMNT_RETRANS,	},
87 #if 0 /* no equivalent; needs special handling, see below */
88     {	OSF1_NFSMNT_HOSTNAME,	OSF1_NFSMNT_HOSTNAME,	???,		},
89 #endif
90     {	OSF1_NFSMNT_INT,	OSF1_NFSMNT_INT,	NFSMNT_INT,	},
91     {	OSF1_NFSMNT_NOCONN,	OSF1_NFSMNT_NOCONN,	NFSMNT_NOCONN,	},
92 #if 0 /* no equivalents */
93     {	OSF1_NFSMNT_NOAC,	OSF1_NFSMNT_NOAC,	???,		},
94     {	OSF1_NFSMNT_ACREGMIN,	OSF1_NFSMNT_ACREGMIN,	???,		},
95     {	OSF1_NFSMNT_ACREGMAX,	OSF1_NFSMNT_ACREGMAX,	???,		},
96     {	OSF1_NFSMNT_ACDIRMIN,	OSF1_NFSMNT_ACDIRMIN,	???,		},
97     {	OSF1_NFSMNT_ACDIRMAX,	OSF1_NFSMNT_ACDIRMAX,	???,		},
98     {	OSF1_NFSMNT_NOCTO,	OSF1_NFSMNT_NOCTO,	???,		},
99     {	OSF1_NFSMNT_POSIX,	OSF1_NFSMNT_POSIX,	???,		},
100     {	OSF1_NFSMNT_AUTO,	OSF1_NFSMNT_AUTO,	???,		},
101     {	OSF1_NFSMNT_SEC,	OSF1_NFSMNT_SEC,	???,		},
102     {	OSF1_NFSMNT_TCP,	OSF1_NFSMNT_TCP,	???,		},
103     {	OSF1_NFSMNT_PROPLIST,	OSF1_NFSMNT_PROPLIST,	???,		},
104 #endif
105     {	0								}
106 };
107 
108 static void
109 osf1_cvt_rusage_from_native(const struct rusage *ru, struct osf1_rusage *oru)
110 {
111 
112 	memset(oru, 0, sizeof(*oru));
113 
114 	oru->ru_utime.tv_sec = ru->ru_utime.tv_sec;
115 	oru->ru_utime.tv_usec = ru->ru_utime.tv_usec;
116 
117 	oru->ru_stime.tv_sec = ru->ru_stime.tv_sec;
118 	oru->ru_stime.tv_usec = ru->ru_stime.tv_usec;
119 
120 	oru->ru_maxrss = ru->ru_maxrss;
121 	oru->ru_ixrss = ru->ru_ixrss;
122 	oru->ru_idrss = ru->ru_idrss;
123 	oru->ru_isrss = ru->ru_isrss;
124 	oru->ru_minflt = ru->ru_minflt;
125 	oru->ru_majflt = ru->ru_majflt;
126 	oru->ru_nswap = ru->ru_nswap;
127 	oru->ru_inblock = ru->ru_inblock;
128 	oru->ru_oublock = ru->ru_oublock;
129 	oru->ru_msgsnd = ru->ru_msgsnd;
130 	oru->ru_msgrcv = ru->ru_msgrcv;
131 	oru->ru_nsignals = ru->ru_nsignals;
132 	oru->ru_nvcsw = ru->ru_nvcsw;
133 	oru->ru_nivcsw = ru->ru_nivcsw;
134 }
135 
136 static void
137 osf1_cvt_statfs_from_native(const struct statvfs *bsfs, struct osf1_statfs *osfs)
138 {
139 
140 	memset(osfs, 0, sizeof(*osfs));
141 	if (!strncmp(MOUNT_FFS, bsfs->f_fstypename, sizeof(bsfs->f_fstypename)))
142 		osfs->f_type = OSF1_MOUNT_UFS;
143 	else if (!strncmp(MOUNT_NFS, bsfs->f_fstypename, sizeof(bsfs->f_fstypename)))
144 		osfs->f_type = OSF1_MOUNT_NFS;
145 	else if (!strncmp(MOUNT_MFS, bsfs->f_fstypename, sizeof(bsfs->f_fstypename)))
146 		osfs->f_type = OSF1_MOUNT_MFS;
147 	else
148 		/* uh oh...  XXX = PC, CDFS, PROCFS, etc. */
149 		osfs->f_type = OSF1_MOUNT_ADDON;
150 	osfs->f_flags = bsfs->f_flag;		/* XXX translate */
151 	osfs->f_fsize = bsfs->f_frsize;
152 	osfs->f_bsize = bsfs->f_bsize;
153 	osfs->f_blocks = bsfs->f_blocks;
154 	osfs->f_bfree = bsfs->f_bfree;
155 	osfs->f_bavail = bsfs->f_bavail;
156 	osfs->f_files = bsfs->f_files;
157 	osfs->f_ffree = bsfs->f_ffree;
158 	memcpy(&osfs->f_fsid, &bsfs->f_fsidx, sizeof osfs->f_fsid);
159 	/* osfs->f_spare zeroed above */
160 	memcpy(osfs->f_mntonname, bsfs->f_mntonname, sizeof osfs->f_mntonname);
161 	memcpy(osfs->f_mntfromname, bsfs->f_mntfromname,
162 	    sizeof osfs->f_mntfromname);
163 	/* XXX osfs->f_xxx should be filled in... */
164 }
165 
166 /* --------------------------------------------------------------------- */
167 
168 int
169 linux_sys_osf1_wait4(struct lwp *l, const struct linux_sys_osf1_wait4_args *uap, register_t *retval)
170 {
171 	struct osf1_rusage osf1_rusage;
172 	struct rusage netbsd_rusage;
173 	unsigned long leftovers;
174 	int error, status;
175 	int options = SCARG(uap, options);
176 	int pid = SCARG(uap, pid);
177 
178 	/* translate options */
179 	options = emul_flags_translate(osf1_wait_options_xtab,
180 	    options, &leftovers);
181 	if (leftovers != 0)
182 		return (EINVAL);
183 
184 	error = do_sys_wait(&pid, &status, options,
185 	    SCARG(uap, rusage) != NULL ? &netbsd_rusage : NULL);
186 
187 	retval[0] = pid;
188 	if (pid == 0)
189 		return error;
190 
191 	if (SCARG(uap, rusage)) {
192 		osf1_cvt_rusage_from_native(&netbsd_rusage, &osf1_rusage);
193 		error = copyout(&osf1_rusage, SCARG(uap, rusage),
194 		    sizeof osf1_rusage);
195 	}
196 
197 	if (error == 0 && SCARG(uap, status))
198 		error = copyout(&status, SCARG(uap, status), sizeof(status));
199 
200 	return error;
201 }
202 
203 #define	OSF1_MNT_WAIT		0x1
204 #define	OSF1_MNT_NOWAIT		0x2
205 
206 #define	OSF1_MNT_FORCE		0x1
207 #define	OSF1_MNT_NOFORCE	0x2
208 
209 /* acceptable flags for various calls */
210 #define	OSF1_GETFSSTAT_FLAGS	(OSF1_MNT_WAIT|OSF1_MNT_NOWAIT)
211 #define	OSF1_MOUNT_FLAGS	0xffffffff			/* XXX */
212 #define	OSF1_UNMOUNT_FLAGS	(OSF1_MNT_FORCE|OSF1_MNT_NOFORCE)
213 
214 static int
215 osf1_mount_mfs(struct lwp *l, const struct linux_sys_osf1_mount_args *uap)
216 {
217 	struct osf1_mfs_args osf_ma;
218 	struct mfs_args bsd_ma;
219 	int error;
220 	register_t dummy;
221 
222 	if ((error = copyin(SCARG(uap, data), &osf_ma, sizeof osf_ma)))
223 		return error;
224 
225 	memset(&bsd_ma, 0, sizeof bsd_ma);
226 	bsd_ma.fspec = osf_ma.name;
227 	/* XXX export args */
228 	bsd_ma.base = osf_ma.base;
229 	bsd_ma.size = osf_ma.size;
230 
231 	return do_sys_mount(l, "mfs", UIO_SYSSPACE, SCARG(uap, path),
232 	    SCARG(uap, flags), &bsd_ma, UIO_SYSSPACE, sizeof bsd_ma, &dummy);
233 }
234 
235 static int
236 osf1_mount_nfs(struct lwp *l, const struct linux_sys_osf1_mount_args *uap)
237 {
238 	struct osf1_nfs_args osf_na;
239 	struct nfs_args bsd_na;
240 	int error;
241 	unsigned long leftovers;
242 	register_t dummy;
243 
244 	if ((error = copyin(SCARG(uap, data), &osf_na, sizeof osf_na)))
245 		return error;
246 
247 	memset(&bsd_na, 0, sizeof bsd_na);
248 	bsd_na.addr = (struct sockaddr *)osf_na.addr;
249 	bsd_na.addrlen = sizeof (struct sockaddr_in);
250 	bsd_na.fh = osf_na.fh;
251 
252         /* translate flags */
253         bsd_na.flags = emul_flags_translate(osf1_nfs_mount_flags_xtab,
254             osf_na.flags, &leftovers);
255 	if (leftovers & OSF1_NFSMNT_HOSTNAME) {
256 		leftovers &= ~OSF1_NFSMNT_HOSTNAME;
257 		bsd_na.hostname = osf_na.hostname;
258 	} else {
259 		/* XXX FILL IN HOST NAME WITH IPADDR? */
260 	}
261 	if (leftovers & OSF1_NFSMNT_TCP) {
262 		leftovers &= ~OSF1_NFSMNT_TCP;
263 		bsd_na.sotype = SOCK_DGRAM;
264 		bsd_na.proto = 0;
265 	} else {
266 		bsd_na.sotype = SOCK_STREAM;
267 		bsd_na.proto = 0;
268 	}
269         if (leftovers != 0)
270                 return (EINVAL);
271 
272 	/* copy structure elements based on flags */
273 	if (bsd_na.flags & NFSMNT_WSIZE)
274 		bsd_na.wsize = osf_na.wsize;
275 	if (bsd_na.flags & NFSMNT_RSIZE)
276 		bsd_na.rsize = osf_na.rsize;
277 	if (bsd_na.flags & NFSMNT_TIMEO)
278 		bsd_na.timeo = osf_na.timeo;
279 	if (bsd_na.flags & NFSMNT_RETRANS)
280 		bsd_na.retrans = osf_na.retrans;
281 
282 	return do_sys_mount(l, "nfs", UIO_SYSSPACE, SCARG(uap, path),
283 	    SCARG(uap, flags), &bsd_na, UIO_SYSSPACE, sizeof bsd_na, &dummy);
284 }
285 
286 int
287 linux_sys_osf1_mount(struct lwp *l, const struct linux_sys_osf1_mount_args *uap, register_t *retval)
288 {
289 
290 	if (SCARG(uap, flags) & ~OSF1_MOUNT_FLAGS)
291 		return (EINVAL);
292 
293 	/* XXX - xlate flags */
294 
295 	switch (SCARG(uap, type)) {
296 	case OSF1_MOUNT_NFS:
297 		return osf1_mount_nfs(l, uap);
298 		break;
299 
300 	case OSF1_MOUNT_MFS:
301 		return osf1_mount_mfs(l, uap);
302 
303 	default:
304 		return (EINVAL);
305 	}
306 }
307 
308 int
309 linux_sys_osf1_set_program_attributes(struct lwp *l, const struct linux_sys_osf1_set_program_attributes_args *uap, register_t *retval)
310 {
311 	struct proc *p = l->l_proc;
312 	segsz_t tsize, dsize;
313 
314 	tsize = btoc(SCARG(uap, tsize));
315 	dsize = btoc(SCARG(uap, dsize));
316 
317 	if (dsize > p->p_rlimit[RLIMIT_DATA].rlim_cur)
318 		return (ENOMEM);
319 #ifdef MAXTSIZ
320 	if (tsize > MAXTSIZ)
321 		return (ENOMEM);
322 #endif
323 
324 	/* XXXSMP unlocked */
325 	p->p_vmspace->vm_taddr = SCARG(uap, taddr);
326 	p->p_vmspace->vm_tsize = tsize;
327 	p->p_vmspace->vm_daddr = SCARG(uap, daddr);
328 	p->p_vmspace->vm_dsize = dsize;
329 
330 	return (0);
331 }
332 
333 int
334 linux_sys_osf1_setitimer(struct lwp *l, const struct linux_sys_osf1_setitimer_args *uap, register_t *retval)
335 {
336 	struct osf1_itimerval o_itv, o_oitv;
337 	struct itimerval b_itv, b_oitv;
338 	int which;
339 	int error;
340 
341 	switch (SCARG(uap, which)) {
342 	case OSF1_ITIMER_REAL:
343 		which = ITIMER_REAL;
344 		break;
345 
346 	case OSF1_ITIMER_VIRTUAL:
347 		which = ITIMER_VIRTUAL;
348 		break;
349 
350 	case OSF1_ITIMER_PROF:
351 		which = ITIMER_PROF;
352 		break;
353 
354 	default:
355 		return (EINVAL);
356 	}
357 
358 	/* get the OSF/1 itimerval argument */
359 	error = copyin(SCARG(uap, itv), &o_itv, sizeof o_itv);
360 	if (error != 0)
361 		return error;
362 
363 	/* fill in and the NetBSD timeval */
364 	memset(&b_itv, 0, sizeof b_itv);
365 	b_itv.it_interval.tv_sec = o_itv.it_interval.tv_sec;
366 	b_itv.it_interval.tv_usec = o_itv.it_interval.tv_usec;
367 	b_itv.it_value.tv_sec = o_itv.it_value.tv_sec;
368 	b_itv.it_value.tv_usec = o_itv.it_value.tv_usec;
369 
370 	if (SCARG(uap, oitv) != NULL) {
371 		dogetitimer(l->l_proc, which, &b_oitv);
372 		if (error)
373 			return error;
374 	}
375 
376 	error = dosetitimer(l->l_proc, which, &b_itv);
377 
378 	if (error == 0 || SCARG(uap, oitv) == NULL)
379 		return error;
380 
381 	/* fill in and copy out the old timeval */
382 	memset(&o_oitv, 0, sizeof o_oitv);
383 	o_oitv.it_interval.tv_sec = b_oitv.it_interval.tv_sec;
384 	o_oitv.it_interval.tv_usec = b_oitv.it_interval.tv_usec;
385 	o_oitv.it_value.tv_sec = b_oitv.it_value.tv_sec;
386 	o_oitv.it_value.tv_usec = b_oitv.it_value.tv_usec;
387 
388 	return copyout(&o_oitv, SCARG(uap, oitv), sizeof o_oitv);
389 }
390 
391 int
392 linux_sys_osf1_select(struct lwp *l, const struct linux_sys_osf1_select_args *uap,
393     register_t *retval)
394 {
395 	struct osf1_timeval otv;
396 	struct timespec ats, *ts = NULL;
397 	int error;
398 
399 	if (SCARG(uap, tv)) {
400 		/* get the OSF/1 timeval argument */
401 		error = copyin(SCARG(uap, tv), &otv, sizeof otv);
402 		if (error != 0)
403 			return error;
404 
405 		ats.tv_sec = otv.tv_sec;
406 		ats.tv_nsec = otv.tv_usec * 1000;
407 		ts = &ats;
408 	}
409 
410 	return selcommon(retval, SCARG(uap, nd), SCARG(uap, in),
411 	    SCARG(uap, ou), SCARG(uap, ex), ts, NULL);
412 }
413 
414 int
415 linux_sys_osf1_gettimeofday(struct lwp *l, const struct linux_sys_osf1_gettimeofday_args *uap, register_t *retval)
416 {
417 	struct osf1_timeval otv;
418 	struct osf1_timezone otz;
419 	struct timeval tv;
420 	int error;
421 
422 	microtime(&tv);
423 	memset(&otv, 0, sizeof otv);
424 	otv.tv_sec = tv.tv_sec;
425 	otv.tv_usec = tv.tv_usec;
426 	error = copyout(&otv, SCARG(uap, tv), sizeof otv);
427 
428 	if (error == 0 && SCARG(uap, tzp) != NULL) {
429 		memset(&otz, 0, sizeof otz);
430 		error = copyout(&otz, SCARG(uap, tzp), sizeof otz);
431 	}
432 	return (error);
433 }
434 
435 int
436 linux_sys_osf1_getrusage(struct lwp *l, const struct linux_sys_osf1_getrusage_args *uap, register_t *retval)
437 {
438 	int error, who;
439 	struct osf1_rusage osf1_rusage;
440 	struct rusage ru;
441 	struct proc *p = l->l_proc;
442 
443 
444 	switch (SCARG(uap, who)) {
445 	case OSF1_RUSAGE_SELF:
446 		who = RUSAGE_SELF;
447 		break;
448 
449 	case OSF1_RUSAGE_CHILDREN:
450 		who = RUSAGE_CHILDREN;
451 		break;
452 
453 	case OSF1_RUSAGE_THREAD:		/* XXX not supported */
454 	default:
455 		return EINVAL;
456 	}
457 
458 	error = getrusage1(p, who, &ru);
459 	if (error != 0)
460 		return error;
461 
462 	osf1_cvt_rusage_from_native(&ru, &osf1_rusage);
463 
464 	return copyout(&osf1_rusage, SCARG(uap, rusage), sizeof osf1_rusage);
465 }
466 
467 int
468 linux_sys_osf1_settimeofday(struct lwp *l, const struct linux_sys_osf1_settimeofday_args *uap, register_t *retval)
469 {
470 	struct osf1_timeval otv;
471 	struct timeval tv, *tvp;
472 	int error = 0;
473 
474 	if (SCARG(uap, tv) == NULL)
475 		tvp = NULL;
476 	else {
477 		/* get the OSF/1 timeval argument */
478 		error = copyin(SCARG(uap, tv), &otv, sizeof otv);
479 		if (error != 0)
480 			return error;
481 
482 		tv.tv_sec = otv.tv_sec;
483 		tv.tv_usec = otv.tv_usec;
484 		tvp = &tv;
485 	}
486 
487 	/* NetBSD ignores the timezone field */
488 
489 	return settimeofday1(tvp, false, (const void *)SCARG(uap, tzp), l, true);
490 }
491 
492 int
493 linux_sys_osf1_utimes(struct lwp *l, const struct linux_sys_osf1_utimes_args *uap, register_t *retval)
494 {
495 	struct osf1_timeval otv;
496 	struct timeval tv[2], *tvp;
497 	int error;
498 
499 	if (SCARG(uap, tptr) == NULL)
500 		tvp = NULL;
501 	else {
502 		/* get the OSF/1 timeval argument */
503 		error = copyin(SCARG(uap, tptr), &otv, sizeof otv);
504 		if (error != 0)
505 			return error;
506 
507 		/* fill in and copy out the NetBSD timeval */
508 		tv[0].tv_sec = otv.tv_sec;
509 		tv[0].tv_usec = otv.tv_usec;
510 		/* Set access and modified to the same time */
511 		tv[1].tv_sec = otv.tv_sec;
512 		tv[1].tv_usec = otv.tv_usec;
513 		tvp = tv;
514 	}
515 
516 	return do_sys_utimes(l, NULL, SCARG(uap, path), FOLLOW,
517 			    tvp, UIO_SYSSPACE);
518 }
519 
520 int
521 linux_sys_osf1_statfs(struct lwp *l, const struct linux_sys_osf1_statfs_args *uap, register_t *retval)
522 {
523 	struct mount *mp;
524 	struct statvfs *sp;
525 	struct osf1_statfs osfs;
526 	int error;
527 	struct vnode *vp;
528 
529 	error = namei_simple_user(SCARG(uap, path),
530 				NSM_FOLLOW_TRYEMULROOT, &vp);
531 	if (error != 0)
532 		return (error);
533 	mp = vp->v_mount;
534 	sp = &mp->mnt_stat;
535 	vrele(vp);
536 	if ((error = VFS_STATVFS(mp, sp)))
537 		return (error);
538 	sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
539 	osf1_cvt_statfs_from_native(sp, &osfs);
540 	return copyout(&osfs, SCARG(uap, buf), uimin(sizeof osfs,
541 	    SCARG(uap, len)));
542 }
543 
544 int
545 linux_sys_osf1_fstatfs(struct lwp *l, const struct linux_sys_osf1_fstatfs_args *uap, register_t *retval)
546 {
547 	file_t *fp;
548 	struct mount *mp;
549 	struct statvfs *sp;
550 	struct osf1_statfs osfs;
551 	int error;
552 
553 	/* fd_getvnode() will use the descriptor for us */
554 	if ((error = fd_getvnode(SCARG(uap, fd), &fp)))
555 		return (error);
556 	mp = fp->f_vnode->v_mount;
557 	sp = &mp->mnt_stat;
558 	if ((error = VFS_STATVFS(mp, sp)))
559 		goto out;
560 	sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
561 	osf1_cvt_statfs_from_native(sp, &osfs);
562 	error = copyout(&osfs, SCARG(uap, buf), uimin(sizeof osfs,
563 	    SCARG(uap, len)));
564  out:
565  	fd_putfile(SCARG(uap, fd));
566 	return (error);
567 }
568 
569 int
570 linux_sys_osf1_sysinfo(struct lwp *l, const struct linux_sys_osf1_sysinfo_args *uap, register_t *retval)
571 {
572 	const char *string;
573 	size_t slen;
574 	int error;
575 
576 	error = 0;
577 	switch (SCARG(uap, cmd)) {
578 	case OSF1_SI_SYSNAME:
579 		string = ostype;
580 		break;
581 
582 	case OSF1_SI_HOSTNAME:
583 		string = hostname;
584 		break;
585 
586 	case OSF1_SI_RELEASE:
587 		string = osrelease;
588 		break;
589 
590 	case OSF1_SI_VERSION:
591 		goto should_handle;
592 
593 	case OSF1_SI_MACHINE:
594 		string = MACHINE;
595 		break;
596 
597 	case OSF1_SI_ARCHITECTURE:
598 		string = MACHINE_ARCH;
599 		break;
600 
601 	case OSF1_SI_HW_SERIAL:
602 		string = "666";			/* OSF/1 emulation?  YES! */
603 		break;
604 
605 	case OSF1_SI_HW_PROVIDER:
606 		string = "unknown";
607 		break;
608 
609 	case OSF1_SI_SRPC_DOMAIN:
610 		goto dont_care;
611 
612 	case OSF1_SI_SET_HOSTNAME:
613 		goto should_handle;
614 
615 	case OSF1_SI_SET_SYSNAME:
616 		goto should_handle;
617 
618 	case OSF1_SI_SET_SRPC_DOMAIN:
619 		goto dont_care;
620 
621 	default:
622 should_handle:
623 		printf("osf1_sys_sysinfo(%d, %p, 0x%lx)\n", SCARG(uap, cmd),
624 		    SCARG(uap, buf), SCARG(uap,len));
625 dont_care:
626 		return (EINVAL);
627 	};
628 
629 	slen = strlen(string) + 1;
630 	if (SCARG(uap, buf)) {
631 		error = copyout(string, SCARG(uap, buf),
632 				uimin(slen, SCARG(uap, len)));
633 		if (!error && (SCARG(uap, len) > 0) && (SCARG(uap, len) < slen))
634 			error = ustore_char(SCARG(uap, buf)
635 					    + SCARG(uap, len) - 1, 0);
636 	}
637 	if (!error)
638 		retval[0] = slen;
639 
640 	return (error);
641 }
642 
643 int
644 linux_sys_osf1_usleep_thread(struct lwp *l, const struct linux_sys_osf1_usleep_thread_args *uap, register_t *retval)
645 {
646 	struct osf1_timeval otv, endotv;
647 	struct timeval tv, ntv, endtv;
648 	u_long ticks;
649 	int error;
650 
651 	if ((error = copyin(SCARG(uap, sleep), &otv, sizeof otv)))
652 		return (error);
653 	tv.tv_sec = otv.tv_sec;
654 	tv.tv_usec = otv.tv_usec;
655 
656 	ticks = howmany((u_long)tv.tv_sec * 1000000 + tv.tv_usec, tick);
657 	if (ticks == 0)
658 		ticks = 1;
659 
660 	getmicrotime(&tv);
661 
662 	tsleep(l, PUSER|PCATCH, "uslpthrd", ticks);	/* XXX */
663 
664 	if (SCARG(uap, slept) != NULL) {
665 		getmicrotime(&ntv);
666 		timersub(&ntv, &tv, &endtv);
667 		if (endtv.tv_sec < 0 || endtv.tv_usec < 0)
668 			endtv.tv_sec = endtv.tv_usec = 0;
669 
670 		memset(&endotv, 0, sizeof(endotv));
671 		endotv.tv_sec = endtv.tv_sec;
672 		endotv.tv_usec = endtv.tv_usec;
673 		error = copyout(&endotv, SCARG(uap, slept), sizeof endotv);
674 	}
675 	return (error);
676 }
677 
678 int
679 linux_sys_osf1_getsysinfo(struct lwp *l, const struct linux_sys_osf1_getsysinfo_args *uap, register_t *retval)
680 {
681 	extern int ncpus;
682 	int error;
683 	int unit;
684 	long percpu;
685 	long proctype;
686 	u_int64_t fpflags;
687 	struct osf1_cpu_info cpuinfo;
688 	const void *data;
689 	size_t datalen;
690 
691 	error = 0;
692 
693 	switch(SCARG(uap, op))
694 	{
695 	case OSF_GET_MAX_UPROCS:
696 		data = &maxproc;
697 		datalen = sizeof(maxproc);
698 		break;
699 	case OSF_GET_PHYSMEM:
700 		data = &physmem;
701 		datalen = sizeof(physmem);
702 		break;
703 	case OSF_GET_MAX_CPU:
704 	case OSF_GET_CPUS_IN_BOX:
705 		data = &ncpus;
706 		datalen = sizeof(ncpus);
707 		break;
708 	case OSF_GET_IEEE_FP_CONTROL:
709 		if (((fpflags = alpha_read_fp_c(l)) & IEEE_INHERIT) != 0) {
710 			fpflags |= 1ULL << 63;
711 			fpflags &= ~IEEE_INHERIT;
712 		}
713 		data = &fpflags;
714 		datalen = sizeof(fpflags);
715 		break;
716 	case OSF_GET_CPU_INFO:
717 		memset(&cpuinfo, 0, sizeof(cpuinfo));
718 #ifdef __alpha__
719 		unit = alpha_pal_whami();
720 #else
721 		unit = 0; /* XXX */
722 #endif
723 		cpuinfo.current_cpu = unit;
724 		cpuinfo.cpus_in_box = ncpus;
725 		cpuinfo.cpu_type = LOCATE_PCS(hwrpb, unit)->pcs_proc_type;
726 		cpuinfo.ncpus = ncpus;
727 		cpuinfo.cpus_present = ncpus;
728 		cpuinfo.cpus_running = ncpus;
729 		cpuinfo.cpu_binding = 1;
730 		cpuinfo.cpu_ex_binding = 0;
731 		cpuinfo.mhz = hwrpb->rpb_cc_freq / 1000000;
732 		data = &cpuinfo;
733 		datalen = sizeof(cpuinfo);
734 		break;
735 	case OSF_GET_PROC_TYPE:
736 #ifdef __alpha__
737 		unit = alpha_pal_whami();
738 		proctype = LOCATE_PCS(hwrpb, unit)->pcs_proc_type;
739 #else
740 		proctype = 0;	/* XXX */
741 #endif
742 		data = &proctype;
743 		datalen = sizeof(percpu);
744 		break;
745 	case OSF_GET_HWRPB: /* note -- osf/1 doesn't have rpb_tbhint[8] */
746 		data = hwrpb;
747 		datalen = hwrpb->rpb_size;
748 		break;
749 	case OSF_GET_PLATFORM_NAME:
750 		data = platform.model;
751 		datalen = strlen(platform.model) + 1;
752 		break;
753 	default:
754 		printf("osf1_getsysinfo called with unknown op=%ld\n",
755 		       SCARG(uap, op));
756 		/* return EINVAL; */
757 		return 0;
758 	}
759 
760 	if (SCARG(uap, nbytes) < datalen)
761 		return (EINVAL);
762 	error = copyout(data, SCARG(uap, buffer), datalen);
763 	if (!error)
764 		retval[0] = 1;
765 	return (error);
766 }
767 
768 int
769 linux_sys_osf1_setsysinfo(struct lwp *l, const struct linux_sys_osf1_setsysinfo_args *uap, register_t *retval)
770 {
771 	u_int64_t temp;
772 	int error;
773 
774 	error = 0;
775 
776 	switch(SCARG(uap, op)) {
777 	case OSF_SET_IEEE_FP_CONTROL:
778 
779 		if ((error = copyin(SCARG(uap, buffer), &temp, sizeof(temp))))
780 			break;
781 		if (temp >> 63 != 0)
782 			temp |= IEEE_INHERIT;
783 		alpha_write_fp_c(l, temp);
784 		break;
785 	default:
786 		uprintf("osf1_setsysinfo called with op=%ld\n", SCARG(uap, op));
787 		//error = EINVAL;
788 	}
789 	retval[0] = 0;
790 	return (error);
791 }
792