Initial import from FreeBSD RELENG_4:
[dragonfly.git] / sys / emulation / svr4 / svr4_misc.c
CommitLineData
984263bc
MD
1/*
2 * Copyright (c) 1998 Mark Newton
3 * Copyright (c) 1994 Christos Zoulas
4 * 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. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission
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, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: src/sys/svr4/svr4_misc.c,v 1.13.2.7 2003/01/14 21:33:58 dillon Exp $
29 */
30
31/*
32 * SVR4 compatibility module.
33 *
34 * SVR4 system calls that are implemented differently in BSD are
35 * handled here.
36 */
37
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/namei.h>
41#include <sys/dirent.h>
42#include <sys/malloc.h>
43#include <sys/proc.h>
44#include <sys/file.h>
45#include <sys/stat.h>
46#include <sys/time.h>
47#include <sys/file.h>
48#include <sys/filedesc.h>
49#include <sys/kernel.h>
50#include <sys/mman.h>
51#include <sys/mount.h>
52#include <sys/resource.h>
53#include <sys/resourcevar.h>
54#include <sys/vnode.h>
55#include <sys/uio.h>
56#include <sys/wait.h>
57#include <sys/times.h>
58#include <sys/fcntl.h>
59#include <sys/sem.h>
60#include <sys/msg.h>
61#include <sys/ptrace.h>
62#include <vm/vm_zone.h>
63
64#include <sys/sysproto.h>
65
66#include <svr4/svr4.h>
67#include <svr4/svr4_types.h>
68#include <svr4/svr4_signal.h>
69#include <svr4/svr4_proto.h>
70#include <svr4/svr4_util.h>
71#include <svr4/svr4_sysconfig.h>
72#include <svr4/svr4_dirent.h>
73#include <svr4/svr4_acl.h>
74#include <svr4/svr4_ulimit.h>
75#include <svr4/svr4_statvfs.h>
76#include <svr4/svr4_hrt.h>
77#include <svr4/svr4_mman.h>
78#include <svr4/svr4_wait.h>
79
80#include <machine/vmparam.h>
81#include <vm/vm.h>
82#include <vm/vm_param.h>
83#include <vm/vm_map.h>
84
85#if defined(__FreeBSD__)
86#include <vm/vm_extern.h>
87#endif
88
89#if defined(NetBSD)
90# if defined(UVM)
91# include <uvm/uvm_extern.h>
92# endif
93#endif
94
95#define BSD_DIRENT(cp) ((struct dirent *)(cp))
96
97static int svr4_mknod __P((struct proc *, register_t *, char *,
98 svr4_mode_t, svr4_dev_t));
99
100static __inline clock_t timeval_to_clock_t __P((struct timeval *));
101static int svr4_setinfo __P((struct proc *, int, svr4_siginfo_t *));
102
103struct svr4_hrtcntl_args;
104static int svr4_hrtcntl __P((struct proc *, struct svr4_hrtcntl_args *,
105 register_t *));
106static void bsd_statfs_to_svr4_statvfs __P((const struct statfs *,
107 struct svr4_statvfs *));
108static void bsd_statfs_to_svr4_statvfs64 __P((const struct statfs *,
109 struct svr4_statvfs64 *));
110static struct proc *svr4_pfind __P((pid_t pid));
111
112/* BOGUS noop */
113#if defined(BOGUS)
114int
115svr4_sys_setitimer(p, uap)
116 register struct proc *p;
117 struct svr4_sys_setitimer_args *uap;
118{
119 p->p_retval[0] = 0;
120 return 0;
121}
122#endif
123
124int
125svr4_sys_wait(p, uap)
126 struct proc *p;
127 struct svr4_sys_wait_args *uap;
128{
129 struct wait_args w4;
130 int error, *retval = p->p_retval, st, sig;
131 size_t sz = sizeof(*SCARG(&w4, status));
132
133 SCARG(&w4, rusage) = NULL;
134 SCARG(&w4, options) = 0;
135
136 if (SCARG(uap, status) == NULL) {
137 caddr_t sg = stackgap_init();
138
139 SCARG(&w4, status) = stackgap_alloc(&sg, sz);
140 }
141 else
142 SCARG(&w4, status) = SCARG(uap, status);
143
144 SCARG(&w4, pid) = WAIT_ANY;
145
146 if ((error = wait4(p, &w4)) != 0)
147 return error;
148
149 if ((error = copyin(SCARG(&w4, status), &st, sizeof(st))) != 0)
150 return error;
151
152 if (WIFSIGNALED(st)) {
153 sig = WTERMSIG(st);
154 if (sig >= 0 && sig < NSIG)
155 st = (st & ~0177) | SVR4_BSD2SVR4_SIG(sig);
156 } else if (WIFSTOPPED(st)) {
157 sig = WSTOPSIG(st);
158 if (sig >= 0 && sig < NSIG)
159 st = (st & ~0xff00) | (SVR4_BSD2SVR4_SIG(sig) << 8);
160 }
161
162 /*
163 * It looks like wait(2) on svr4/solaris/2.4 returns
164 * the status in retval[1], and the pid on retval[0].
165 */
166 retval[1] = st;
167
168 if (SCARG(uap, status))
169 if ((error = copyout(&st, SCARG(uap, status), sizeof(st))) != 0)
170 return error;
171
172 return 0;
173}
174
175int
176svr4_sys_execv(p, uap)
177 struct proc *p;
178 struct svr4_sys_execv_args *uap;
179{
180 struct execve_args ap;
181 caddr_t sg;
182
183 sg = stackgap_init();
184 CHECKALTEXIST(p, &sg, SCARG(uap, path));
185
186 SCARG(&ap, fname) = SCARG(uap, path);
187 SCARG(&ap, argv) = SCARG(uap, argp);
188 SCARG(&ap, envv) = NULL;
189
190 return execve(p, &ap);
191}
192
193int
194svr4_sys_execve(p, uap)
195 struct proc *p;
196 struct svr4_sys_execve_args *uap;
197{
198 struct execve_args ap;
199 caddr_t sg;
200
201 sg = stackgap_init();
202 CHECKALTEXIST(p, &sg, uap->path);
203
204 SCARG(&ap, fname) = SCARG(uap, path);
205 SCARG(&ap, argv) = SCARG(uap, argp);
206 SCARG(&ap, envv) = SCARG(uap, envp);
207
208 return execve(p, &ap);
209}
210
211int
212svr4_sys_time(p, v)
213 struct proc *p;
214 struct svr4_sys_time_args *v;
215{
216 struct svr4_sys_time_args *uap = v;
217 int error = 0;
218 struct timeval tv;
219
220 microtime(&tv);
221 if (SCARG(uap, t))
222 error = copyout(&tv.tv_sec, SCARG(uap, t),
223 sizeof(*(SCARG(uap, t))));
224 p->p_retval[0] = (int) tv.tv_sec;
225
226 return error;
227}
228
229
230/*
231 * Read SVR4-style directory entries. We suck them into kernel space so
232 * that they can be massaged before being copied out to user code.
233 *
234 * This code is ported from the Linux emulator: Changes to the VFS interface
235 * between FreeBSD and NetBSD have made it simpler to port it from there than
236 * to adapt the NetBSD version.
237 */
238int
239svr4_sys_getdents64(p, uap)
240 struct proc *p;
241 struct svr4_sys_getdents64_args *uap;
242{
243 register struct dirent *bdp;
244 struct vnode *vp;
245 caddr_t inp, buf; /* BSD-format */
246 int len, reclen; /* BSD-format */
247 caddr_t outp; /* SVR4-format */
248 int resid, svr4reclen=0; /* SVR4-format */
249 struct file *fp;
250 struct uio auio;
251 struct iovec aiov;
252 struct vattr va;
253 off_t off;
254 struct svr4_dirent64 svr4_dirent;
255 int buflen, error, eofflag, nbytes, justone;
256 u_long *cookies = NULL, *cookiep;
257 int ncookies;
258
259 DPRINTF(("svr4_sys_getdents64(%d, *, %d)\n",
260 p->p_pid, SCARG(uap, fd), SCARG(uap, nbytes)));
261 if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) {
262 return (error);
263 }
264
265 if ((fp->f_flag & FREAD) == 0)
266 return (EBADF);
267
268 vp = (struct vnode *) fp->f_data;
269
270 if (vp->v_type != VDIR)
271 return (EINVAL);
272
273 if ((error = VOP_GETATTR(vp, &va, p->p_ucred, p))) {
274 return error;
275 }
276
277 nbytes = SCARG(uap, nbytes);
278 if (nbytes == 1) {
279 nbytes = sizeof (struct svr4_dirent64);
280 justone = 1;
281 }
282 else
283 justone = 0;
284
285 off = fp->f_offset;
286#define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */
287 buflen = max(DIRBLKSIZ, nbytes);
288 buflen = min(buflen, MAXBSIZE);
289 buf = malloc(buflen, M_TEMP, M_WAITOK);
290 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
291again:
292 aiov.iov_base = buf;
293 aiov.iov_len = buflen;
294 auio.uio_iov = &aiov;
295 auio.uio_iovcnt = 1;
296 auio.uio_rw = UIO_READ;
297 auio.uio_segflg = UIO_SYSSPACE;
298 auio.uio_procp = p;
299 auio.uio_resid = buflen;
300 auio.uio_offset = off;
301
302 if (cookies) {
303 free(cookies, M_TEMP);
304 cookies = NULL;
305 }
306
307 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag,
308 &ncookies, &cookies);
309 if (error) {
310 goto out;
311 }
312
313 inp = buf;
314 outp = (caddr_t) SCARG(uap, dp);
315 resid = nbytes;
316 if ((len = buflen - auio.uio_resid) <= 0) {
317 goto eof;
318 }
319
320 cookiep = cookies;
321
322 if (cookies) {
323 /*
324 * When using cookies, the vfs has the option of reading from
325 * a different offset than that supplied (UFS truncates the
326 * offset to a block boundary to make sure that it never reads
327 * partway through a directory entry, even if the directory
328 * has been compacted).
329 */
330 while (len > 0 && ncookies > 0 && *cookiep <= off) {
331 bdp = (struct dirent *) inp;
332 len -= bdp->d_reclen;
333 inp += bdp->d_reclen;
334 cookiep++;
335 ncookies--;
336 }
337 }
338
339 while (len > 0) {
340 if (cookiep && ncookies == 0)
341 break;
342 bdp = (struct dirent *) inp;
343 reclen = bdp->d_reclen;
344 if (reclen & 3) {
345 DPRINTF(("svr4_readdir: reclen=%d\n", reclen));
346 error = EFAULT;
347 goto out;
348 }
349
350 if (bdp->d_fileno == 0) {
351 inp += reclen;
352 if (cookiep) {
353 off = *cookiep++;
354 ncookies--;
355 } else
356 off += reclen;
357 len -= reclen;
358 continue;
359 }
360 svr4reclen = SVR4_RECLEN(&svr4_dirent, bdp->d_namlen);
361 if (reclen > len || resid < svr4reclen) {
362 outp++;
363 break;
364 }
365 svr4_dirent.d_ino = (long) bdp->d_fileno;
366 if (justone) {
367 /*
368 * old svr4-style readdir usage.
369 */
370 svr4_dirent.d_off = (svr4_off_t) svr4reclen;
371 svr4_dirent.d_reclen = (u_short) bdp->d_namlen;
372 } else {
373 svr4_dirent.d_off = (svr4_off_t)(off + reclen);
374 svr4_dirent.d_reclen = (u_short) svr4reclen;
375 }
376 strcpy(svr4_dirent.d_name, bdp->d_name);
377 if ((error = copyout((caddr_t)&svr4_dirent, outp, svr4reclen)))
378 goto out;
379 inp += reclen;
380 if (cookiep) {
381 off = *cookiep++;
382 ncookies--;
383 } else
384 off += reclen;
385 outp += svr4reclen;
386 resid -= svr4reclen;
387 len -= reclen;
388 if (justone)
389 break;
390 }
391
392 if (outp == (caddr_t) SCARG(uap, dp))
393 goto again;
394 fp->f_offset = off;
395
396 if (justone)
397 nbytes = resid + svr4reclen;
398
399eof:
400 p->p_retval[0] = nbytes - resid;
401out:
402 if (cookies)
403 free(cookies, M_TEMP);
404 VOP_UNLOCK(vp, 0, p);
405 free(buf, M_TEMP);
406 return error;
407}
408
409
410int
411svr4_sys_getdents(p, uap)
412 struct proc *p;
413 struct svr4_sys_getdents_args *uap;
414{
415 struct dirent *bdp;
416 struct vnode *vp;
417 caddr_t inp, buf; /* BSD-format */
418 int len, reclen; /* BSD-format */
419 caddr_t outp; /* SVR4-format */
420 int resid, svr4_reclen; /* SVR4-format */
421 struct file *fp;
422 struct uio auio;
423 struct iovec aiov;
424 struct svr4_dirent idb;
425 off_t off; /* true file offset */
426 int buflen, error, eofflag;
427 u_long *cookiebuf = NULL, *cookie;
428 int ncookies = 0, *retval = p->p_retval;
429
430 if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0)
431 return (error);
432
433 if ((fp->f_flag & FREAD) == 0)
434 return (EBADF);
435
436 vp = (struct vnode *)fp->f_data;
437 if (vp->v_type != VDIR)
438 return (EINVAL);
439
440 buflen = min(MAXBSIZE, SCARG(uap, nbytes));
441 buf = malloc(buflen, M_TEMP, M_WAITOK);
442 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
443 off = fp->f_offset;
444again:
445 aiov.iov_base = buf;
446 aiov.iov_len = buflen;
447 auio.uio_iov = &aiov;
448 auio.uio_iovcnt = 1;
449 auio.uio_rw = UIO_READ;
450 auio.uio_segflg = UIO_SYSSPACE;
451 auio.uio_procp = p;
452 auio.uio_resid = buflen;
453 auio.uio_offset = off;
454 /*
455 * First we read into the malloc'ed buffer, then
456 * we massage it into user space, one record at a time.
457 */
458 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies,
459 &cookiebuf);
460 if (error)
461 goto out;
462
463 inp = buf;
464 outp = SCARG(uap, buf);
465 resid = SCARG(uap, nbytes);
466 if ((len = buflen - auio.uio_resid) == 0)
467 goto eof;
468
469 for (cookie = cookiebuf; len > 0; len -= reclen) {
470 bdp = (struct dirent *)inp;
471 reclen = bdp->d_reclen;
472 if (reclen & 3)
473 panic("svr4_sys_getdents64: bad reclen");
474 off = *cookie++; /* each entry points to the next */
475 if ((off >> 32) != 0) {
476 uprintf("svr4_sys_getdents64: dir offset too large for emulated program");
477 error = EINVAL;
478 goto out;
479 }
480 if (bdp->d_fileno == 0) {
481 inp += reclen; /* it is a hole; squish it out */
482 continue;
483 }
484 svr4_reclen = SVR4_RECLEN(&idb, bdp->d_namlen);
485 if (reclen > len || resid < svr4_reclen) {
486 /* entry too big for buffer, so just stop */
487 outp++;
488 break;
489 }
490 /*
491 * Massage in place to make a SVR4-shaped dirent (otherwise
492 * we have to worry about touching user memory outside of
493 * the copyout() call).
494 */
495 idb.d_ino = (svr4_ino_t)bdp->d_fileno;
496 idb.d_off = (svr4_off_t)off;
497 idb.d_reclen = (u_short)svr4_reclen;
498 strcpy(idb.d_name, bdp->d_name);
499 if ((error = copyout((caddr_t)&idb, outp, svr4_reclen)))
500 goto out;
501 /* advance past this real entry */
502 inp += reclen;
503 /* advance output past SVR4-shaped entry */
504 outp += svr4_reclen;
505 resid -= svr4_reclen;
506 }
507
508 /* if we squished out the whole block, try again */
509 if (outp == SCARG(uap, buf))
510 goto again;
511 fp->f_offset = off; /* update the vnode offset */
512
513eof:
514 *retval = SCARG(uap, nbytes) - resid;
515out:
516 VOP_UNLOCK(vp, 0, p);
517 if (cookiebuf)
518 free(cookiebuf, M_TEMP);
519 free(buf, M_TEMP);
520 return error;
521}
522
523
524int
525svr4_sys_mmap(p, uap)
526 struct proc *p;
527 struct svr4_sys_mmap_args *uap;
528{
529 struct mmap_args mm;
530 int *retval;
531
532 retval = p->p_retval;
533#define _MAP_NEW 0x80000000
534 /*
535 * Verify the arguments.
536 */
537 if (SCARG(uap, prot) & ~(PROT_READ | PROT_WRITE | PROT_EXEC))
538 return EINVAL; /* XXX still needed? */
539
540 if (SCARG(uap, len) == 0)
541 return EINVAL;
542
543 SCARG(&mm, prot) = SCARG(uap, prot);
544 SCARG(&mm, len) = SCARG(uap, len);
545 SCARG(&mm, flags) = SCARG(uap, flags) & ~_MAP_NEW;
546 SCARG(&mm, fd) = SCARG(uap, fd);
547 SCARG(&mm, addr) = SCARG(uap, addr);
548 SCARG(&mm, pos) = SCARG(uap, pos);
549
550 return mmap(p, &mm);
551}
552
553int
554svr4_sys_mmap64(p, uap)
555 struct proc *p;
556 struct svr4_sys_mmap64_args *uap;
557{
558 struct mmap_args mm;
559 void *rp;
560
561#define _MAP_NEW 0x80000000
562 /*
563 * Verify the arguments.
564 */
565 if (SCARG(uap, prot) & ~(PROT_READ | PROT_WRITE | PROT_EXEC))
566 return EINVAL; /* XXX still needed? */
567
568 if (SCARG(uap, len) == 0)
569 return EINVAL;
570
571 SCARG(&mm, prot) = SCARG(uap, prot);
572 SCARG(&mm, len) = SCARG(uap, len);
573 SCARG(&mm, flags) = SCARG(uap, flags) & ~_MAP_NEW;
574 SCARG(&mm, fd) = SCARG(uap, fd);
575 SCARG(&mm, addr) = SCARG(uap, addr);
576 SCARG(&mm, pos) = SCARG(uap, pos);
577
578 rp = (void *) round_page((vm_offset_t)(p->p_vmspace->vm_daddr + maxdsiz));
579 if ((SCARG(&mm, flags) & MAP_FIXED) == 0 &&
580 SCARG(&mm, addr) != 0 && (void *)SCARG(&mm, addr) < rp)
581 SCARG(&mm, addr) = rp;
582
583 return mmap(p, &mm);
584}
585
586
587int
588svr4_sys_fchroot(p, uap)
589 struct proc *p;
590 struct svr4_sys_fchroot_args *uap;
591{
592 struct filedesc *fdp = p->p_fd;
593 struct vnode *vp;
594 struct file *fp;
595 int error;
596
597 if ((error = suser(p)) != 0)
598 return error;
599 if ((error = getvnode(fdp, SCARG(uap, fd), &fp)) != 0)
600 return error;
601 vp = (struct vnode *) fp->f_data;
602 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
603 if (vp->v_type != VDIR)
604 error = ENOTDIR;
605 else
606 error = VOP_ACCESS(vp, VEXEC, p->p_ucred, p);
607 VOP_UNLOCK(vp, 0, p);
608 if (error)
609 return error;
610 VREF(vp);
611 if (fdp->fd_rdir != NULL)
612 vrele(fdp->fd_rdir);
613 fdp->fd_rdir = vp;
614 return 0;
615}
616
617
618static int
619svr4_mknod(p, retval, path, mode, dev)
620 struct proc *p;
621 register_t *retval;
622 char *path;
623 svr4_mode_t mode;
624 svr4_dev_t dev;
625{
626 caddr_t sg = stackgap_init();
627
628 CHECKALTEXIST(p, &sg, path);
629
630 if (S_ISFIFO(mode)) {
631 struct mkfifo_args ap;
632 SCARG(&ap, path) = path;
633 SCARG(&ap, mode) = mode;
634 return mkfifo(p, &ap);
635 } else {
636 struct mknod_args ap;
637 SCARG(&ap, path) = path;
638 SCARG(&ap, mode) = mode;
639 SCARG(&ap, dev) = dev;
640 return mknod(p, &ap);
641 }
642}
643
644
645int
646svr4_sys_mknod(p, uap)
647 register struct proc *p;
648 struct svr4_sys_mknod_args *uap;
649{
650 int *retval = p->p_retval;
651 return svr4_mknod(p, retval,
652 SCARG(uap, path), SCARG(uap, mode),
653 (svr4_dev_t)svr4_to_bsd_odev_t(SCARG(uap, dev)));
654}
655
656
657int
658svr4_sys_xmknod(p, uap)
659 struct proc *p;
660 struct svr4_sys_xmknod_args *uap;
661{
662 int *retval = p->p_retval;
663 return svr4_mknod(p, retval,
664 SCARG(uap, path), SCARG(uap, mode),
665 (svr4_dev_t)svr4_to_bsd_dev_t(SCARG(uap, dev)));
666}
667
668
669int
670svr4_sys_vhangup(p, uap)
671 struct proc *p;
672 struct svr4_sys_vhangup_args *uap;
673{
674 return 0;
675}
676
677
678int
679svr4_sys_sysconfig(p, uap)
680 struct proc *p;
681 struct svr4_sys_sysconfig_args *uap;
682{
683 int *retval;
684
685 retval = &(p->p_retval[0]);
686
687 switch (SCARG(uap, name)) {
688 case SVR4_CONFIG_UNUSED:
689 *retval = 0;
690 break;
691 case SVR4_CONFIG_NGROUPS:
692 *retval = NGROUPS_MAX;
693 break;
694 case SVR4_CONFIG_CHILD_MAX:
695 *retval = maxproc;
696 break;
697 case SVR4_CONFIG_OPEN_FILES:
698 *retval = maxfiles;
699 break;
700 case SVR4_CONFIG_POSIX_VER:
701 *retval = 198808;
702 break;
703 case SVR4_CONFIG_PAGESIZE:
704 *retval = PAGE_SIZE;
705 break;
706 case SVR4_CONFIG_CLK_TCK:
707 *retval = 60; /* should this be `hz', ie. 100? */
708 break;
709 case SVR4_CONFIG_XOPEN_VER:
710 *retval = 2; /* XXX: What should that be? */
711 break;
712 case SVR4_CONFIG_PROF_TCK:
713 *retval = 60; /* XXX: What should that be? */
714 break;
715 case SVR4_CONFIG_NPROC_CONF:
716 *retval = 1; /* Only one processor for now */
717 break;
718 case SVR4_CONFIG_NPROC_ONLN:
719 *retval = 1; /* And it better be online */
720 break;
721 case SVR4_CONFIG_AIO_LISTIO_MAX:
722 case SVR4_CONFIG_AIO_MAX:
723 case SVR4_CONFIG_AIO_PRIO_DELTA_MAX:
724 *retval = 0; /* No aio support */
725 break;
726 case SVR4_CONFIG_DELAYTIMER_MAX:
727 *retval = 0; /* No delaytimer support */
728 break;
729 case SVR4_CONFIG_MQ_OPEN_MAX:
730 *retval = msginfo.msgmni;
731 break;
732 case SVR4_CONFIG_MQ_PRIO_MAX:
733 *retval = 0; /* XXX: Don't know */
734 break;
735 case SVR4_CONFIG_RTSIG_MAX:
736 *retval = 0;
737 break;
738 case SVR4_CONFIG_SEM_NSEMS_MAX:
739 *retval = seminfo.semmni;
740 break;
741 case SVR4_CONFIG_SEM_VALUE_MAX:
742 *retval = seminfo.semvmx;
743 break;
744 case SVR4_CONFIG_SIGQUEUE_MAX:
745 *retval = 0; /* XXX: Don't know */
746 break;
747 case SVR4_CONFIG_SIGRT_MIN:
748 case SVR4_CONFIG_SIGRT_MAX:
749 *retval = 0; /* No real time signals */
750 break;
751 case SVR4_CONFIG_TIMER_MAX:
752 *retval = 3; /* XXX: real, virtual, profiling */
753 break;
754#if defined(NOTYET)
755 case SVR4_CONFIG_PHYS_PAGES:
756#if defined(UVM)
757 *retval = uvmexp.free; /* XXX: free instead of total */
758#else
759 *retval = cnt.v_free_count; /* XXX: free instead of total */
760#endif
761 break;
762 case SVR4_CONFIG_AVPHYS_PAGES:
763#if defined(UVM)
764 *retval = uvmexp.active; /* XXX: active instead of avg */
765#else
766 *retval = cnt.v_active_count; /* XXX: active instead of avg */
767#endif
768 break;
769#endif /* NOTYET */
770
771 default:
772 return EINVAL;
773 }
774 return 0;
775}
776
777extern int swap_pager_full;
778
779/* ARGSUSED */
780int
781svr4_sys_break(p, uap)
782 struct proc *p;
783 struct svr4_sys_break_args *uap;
784{
785 struct vmspace *vm = p->p_vmspace;
786 vm_offset_t new, old, base, ns;
787 int rv;
788
789 base = round_page((vm_offset_t) vm->vm_daddr);
790 ns = (vm_offset_t)SCARG(uap, nsize);
791 new = round_page(ns);
792 if (new > base) {
793 if ((new - base) > (unsigned) p->p_rlimit[RLIMIT_DATA].rlim_cur) {
794 return ENOMEM;
795 }
796 if (new >= VM_MAXUSER_ADDRESS) {
797 return (ENOMEM);
798 }
799 } else if (new < base) {
800 /*
801 * This is simply an invalid value. If someone wants to
802 * do fancy address space manipulations, mmap and munmap
803 * can do most of what the user would want.
804 */
805 return EINVAL;
806 }
807
808 old = base + ctob(vm->vm_dsize);
809
810 if (new > old) {
811 vm_size_t diff;
812 diff = new - old;
813 if (vm->vm_map.size + diff > p->p_rlimit[RLIMIT_VMEM].rlim_cur)
814 return(ENOMEM);
815 rv = vm_map_find(&vm->vm_map, NULL, 0, &old, diff, FALSE,
816 VM_PROT_ALL, VM_PROT_ALL, 0);
817 if (rv != KERN_SUCCESS) {
818 return (ENOMEM);
819 }
820 vm->vm_dsize += btoc(diff);
821 } else if (new < old) {
822 rv = vm_map_remove(&vm->vm_map, new, old);
823 if (rv != KERN_SUCCESS) {
824 return (ENOMEM);
825 }
826 vm->vm_dsize -= btoc(old - new);
827 }
828
829 return (0);
830}
831
832static __inline clock_t
833timeval_to_clock_t(tv)
834 struct timeval *tv;
835{
836 return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz);
837}
838
839
840int
841svr4_sys_times(p, uap)
842 struct proc *p;
843 struct svr4_sys_times_args *uap;
844{
845 int error, *retval = p->p_retval;
846 struct tms tms;
847 struct timeval t;
848 struct rusage *ru;
849 struct rusage r;
850 struct getrusage_args ga;
851
852 caddr_t sg = stackgap_init();
853 ru = stackgap_alloc(&sg, sizeof(struct rusage));
854
855 SCARG(&ga, who) = RUSAGE_SELF;
856 SCARG(&ga, rusage) = ru;
857
858 error = getrusage(p, &ga);
859 if (error)
860 return error;
861
862 if ((error = copyin(ru, &r, sizeof r)) != 0)
863 return error;
864
865 tms.tms_utime = timeval_to_clock_t(&r.ru_utime);
866 tms.tms_stime = timeval_to_clock_t(&r.ru_stime);
867
868 SCARG(&ga, who) = RUSAGE_CHILDREN;
869 error = getrusage(p, &ga);
870 if (error)
871 return error;
872
873 if ((error = copyin(ru, &r, sizeof r)) != 0)
874 return error;
875
876 tms.tms_cutime = timeval_to_clock_t(&r.ru_utime);
877 tms.tms_cstime = timeval_to_clock_t(&r.ru_stime);
878
879 microtime(&t);
880 *retval = timeval_to_clock_t(&t);
881
882 return copyout(&tms, SCARG(uap, tp), sizeof(tms));
883}
884
885
886int
887svr4_sys_ulimit(p, uap)
888 struct proc *p;
889 struct svr4_sys_ulimit_args *uap;
890{
891 int *retval = p->p_retval;
892
893 switch (SCARG(uap, cmd)) {
894 case SVR4_GFILLIM:
895 *retval = p->p_rlimit[RLIMIT_FSIZE].rlim_cur / 512;
896 if (*retval == -1)
897 *retval = 0x7fffffff;
898 return 0;
899
900 case SVR4_SFILLIM:
901 {
902 int error;
903 struct __setrlimit_args srl;
904 struct rlimit krl;
905 caddr_t sg = stackgap_init();
906 struct rlimit *url = (struct rlimit *)
907 stackgap_alloc(&sg, sizeof *url);
908
909 krl.rlim_cur = SCARG(uap, newlimit) * 512;
910 krl.rlim_max = p->p_rlimit[RLIMIT_FSIZE].rlim_max;
911
912 error = copyout(&krl, url, sizeof(*url));
913 if (error)
914 return error;
915
916 SCARG(&srl, which) = RLIMIT_FSIZE;
917 SCARG(&srl, rlp) = (struct orlimit *)url;
918
919 error = setrlimit(p, &srl);
920 if (error)
921 return error;
922
923 *retval = p->p_rlimit[RLIMIT_FSIZE].rlim_cur;
924 if (*retval == -1)
925 *retval = 0x7fffffff;
926 return 0;
927 }
928
929 case SVR4_GMEMLIM:
930 {
931 struct vmspace *vm = p->p_vmspace;
932 register_t r = p->p_rlimit[RLIMIT_DATA].rlim_cur;
933
934 if (r == -1)
935 r = 0x7fffffff;
936 r += (long) vm->vm_daddr;
937 if (r < 0)
938 r = 0x7fffffff;
939 *retval = r;
940 return 0;
941 }
942
943 case SVR4_GDESLIM:
944 *retval = p->p_rlimit[RLIMIT_NOFILE].rlim_cur;
945 if (*retval == -1)
946 *retval = 0x7fffffff;
947 return 0;
948
949 default:
950 return EINVAL;
951 }
952}
953
954static struct proc *
955svr4_pfind(pid)
956 pid_t pid;
957{
958 struct proc *p;
959
960 /* look in the live processes */
961 if ((p = pfind(pid)) != NULL)
962 return p;
963
964 /* look in the zombies */
965 for (p = zombproc.lh_first; p != 0; p = p->p_list.le_next)
966 if (p->p_pid == pid)
967 return p;
968
969 return NULL;
970}
971
972
973int
974svr4_sys_pgrpsys(p, uap)
975 struct proc *p;
976 struct svr4_sys_pgrpsys_args *uap;
977{
978 int *retval = p->p_retval;
979
980 switch (SCARG(uap, cmd)) {
981 case 1: /* setpgrp() */
982 /*
983 * SVR4 setpgrp() (which takes no arguments) has the
984 * semantics that the session ID is also created anew, so
985 * in almost every sense, setpgrp() is identical to
986 * setsid() for SVR4. (Under BSD, the difference is that
987 * a setpgid(0,0) will not create a new session.)
988 */
989 setsid(p, NULL);
990 /*FALLTHROUGH*/
991
992 case 0: /* getpgrp() */
993 *retval = p->p_pgrp->pg_id;
994 return 0;
995
996 case 2: /* getsid(pid) */
997 if (SCARG(uap, pid) != 0 &&
998 (p = svr4_pfind(SCARG(uap, pid))) == NULL)
999 return ESRCH;
1000 /*
1001 * This has already been initialized to the pid of
1002 * the session leader.
1003 */
1004 *retval = (register_t) p->p_session->s_leader->p_pid;
1005 return 0;
1006
1007 case 3: /* setsid() */
1008 return setsid(p, NULL);
1009
1010 case 4: /* getpgid(pid) */
1011
1012 if (SCARG(uap, pid) != 0 &&
1013 (p = svr4_pfind(SCARG(uap, pid))) == NULL)
1014 return ESRCH;
1015
1016 *retval = (int) p->p_pgrp->pg_id;
1017 return 0;
1018
1019 case 5: /* setpgid(pid, pgid); */
1020 {
1021 struct setpgid_args sa;
1022
1023 SCARG(&sa, pid) = SCARG(uap, pid);
1024 SCARG(&sa, pgid) = SCARG(uap, pgid);
1025 return setpgid(p, &sa);
1026 }
1027
1028 default:
1029 return EINVAL;
1030 }
1031}
1032
1033#define syscallarg(x) union { x datum; register_t pad; }
1034
1035struct svr4_hrtcntl_args {
1036 int cmd;
1037 int fun;
1038 int clk;
1039 svr4_hrt_interval_t * iv;
1040 svr4_hrt_time_t * ti;
1041};
1042
1043
1044static int
1045svr4_hrtcntl(p, uap, retval)
1046 struct proc *p;
1047 struct svr4_hrtcntl_args *uap;
1048 register_t *retval;
1049{
1050 switch (SCARG(uap, fun)) {
1051 case SVR4_HRT_CNTL_RES:
1052 DPRINTF(("htrcntl(RES)\n"));
1053 *retval = SVR4_HRT_USEC;
1054 return 0;
1055
1056 case SVR4_HRT_CNTL_TOFD:
1057 DPRINTF(("htrcntl(TOFD)\n"));
1058 {
1059 struct timeval tv;
1060 svr4_hrt_time_t t;
1061 if (SCARG(uap, clk) != SVR4_HRT_CLK_STD) {
1062 DPRINTF(("clk == %d\n", SCARG(uap, clk)));
1063 return EINVAL;
1064 }
1065 if (SCARG(uap, ti) == NULL) {
1066 DPRINTF(("ti NULL\n"));
1067 return EINVAL;
1068 }
1069 microtime(&tv);
1070 t.h_sec = tv.tv_sec;
1071 t.h_rem = tv.tv_usec;
1072 t.h_res = SVR4_HRT_USEC;
1073 return copyout(&t, SCARG(uap, ti), sizeof(t));
1074 }
1075
1076 case SVR4_HRT_CNTL_START:
1077 DPRINTF(("htrcntl(START)\n"));
1078 return ENOSYS;
1079
1080 case SVR4_HRT_CNTL_GET:
1081 DPRINTF(("htrcntl(GET)\n"));
1082 return ENOSYS;
1083 default:
1084 DPRINTF(("Bad htrcntl command %d\n", SCARG(uap, fun)));
1085 return ENOSYS;
1086 }
1087}
1088
1089
1090int
1091svr4_sys_hrtsys(p, uap)
1092 struct proc *p;
1093 struct svr4_sys_hrtsys_args *uap;
1094{
1095 int *retval = p->p_retval;
1096
1097 switch (SCARG(uap, cmd)) {
1098 case SVR4_HRT_CNTL:
1099 return svr4_hrtcntl(p, (struct svr4_hrtcntl_args *) uap,
1100 retval);
1101
1102 case SVR4_HRT_ALRM:
1103 DPRINTF(("hrtalarm\n"));
1104 return ENOSYS;
1105
1106 case SVR4_HRT_SLP:
1107 DPRINTF(("hrtsleep\n"));
1108 return ENOSYS;
1109
1110 case SVR4_HRT_CAN:
1111 DPRINTF(("hrtcancel\n"));
1112 return ENOSYS;
1113
1114 default:
1115 DPRINTF(("Bad hrtsys command %d\n", SCARG(uap, cmd)));
1116 return EINVAL;
1117 }
1118}
1119
1120
1121static int
1122svr4_setinfo(p, st, s)
1123 struct proc *p;
1124 int st;
1125 svr4_siginfo_t *s;
1126{
1127 svr4_siginfo_t i;
1128 int sig;
1129
1130 memset(&i, 0, sizeof(i));
1131
1132 i.si_signo = SVR4_SIGCHLD;
1133 i.si_errno = 0; /* XXX? */
1134
1135 if (p) {
1136 i.si_pid = p->p_pid;
1137 if (p->p_stat == SZOMB) {
1138 i.si_stime = p->p_ru->ru_stime.tv_sec;
1139 i.si_utime = p->p_ru->ru_utime.tv_sec;
1140 }
1141 else {
1142 i.si_stime = p->p_stats->p_ru.ru_stime.tv_sec;
1143 i.si_utime = p->p_stats->p_ru.ru_utime.tv_sec;
1144 }
1145 }
1146
1147 if (WIFEXITED(st)) {
1148 i.si_status = WEXITSTATUS(st);
1149 i.si_code = SVR4_CLD_EXITED;
1150 } else if (WIFSTOPPED(st)) {
1151 sig = WSTOPSIG(st);
1152 if (sig >= 0 && sig < NSIG)
1153 i.si_status = SVR4_BSD2SVR4_SIG(sig);
1154
1155 if (i.si_status == SVR4_SIGCONT)
1156 i.si_code = SVR4_CLD_CONTINUED;
1157 else
1158 i.si_code = SVR4_CLD_STOPPED;
1159 } else {
1160 sig = WTERMSIG(st);
1161 if (sig >= 0 && sig < NSIG)
1162 i.si_status = SVR4_BSD2SVR4_SIG(sig);
1163
1164 if (WCOREDUMP(st))
1165 i.si_code = SVR4_CLD_DUMPED;
1166 else
1167 i.si_code = SVR4_CLD_KILLED;
1168 }
1169
1170 DPRINTF(("siginfo [pid %ld signo %d code %d errno %d status %d]\n",
1171 i.si_pid, i.si_signo, i.si_code, i.si_errno, i.si_status));
1172
1173 return copyout(&i, s, sizeof(i));
1174}
1175
1176
1177int
1178svr4_sys_waitsys(p, uap)
1179 struct proc *p;
1180 struct svr4_sys_waitsys_args *uap;
1181{
1182 int nfound;
1183 int error, *retval = p->p_retval;
1184 struct proc *q, *t;
1185
1186
1187 switch (SCARG(uap, grp)) {
1188 case SVR4_P_PID:
1189 break;
1190
1191 case SVR4_P_PGID:
1192 SCARG(uap, id) = -p->p_pgid;
1193 break;
1194
1195 case SVR4_P_ALL:
1196 SCARG(uap, id) = WAIT_ANY;
1197 break;
1198
1199 default:
1200 return EINVAL;
1201 }
1202
1203 DPRINTF(("waitsys(%d, %d, %p, %x)\n",
1204 SCARG(uap, grp), SCARG(uap, id),
1205 SCARG(uap, info), SCARG(uap, options)));
1206
1207loop:
1208 nfound = 0;
1209 for (q = p->p_children.lh_first; q != 0; q = q->p_sibling.le_next) {
1210 if (SCARG(uap, id) != WAIT_ANY &&
1211 q->p_pid != SCARG(uap, id) &&
1212 q->p_pgid != -SCARG(uap, id)) {
1213 DPRINTF(("pid %d pgid %d != %d\n", q->p_pid,
1214 q->p_pgid, SCARG(uap, id)));
1215 continue;
1216 }
1217 nfound++;
1218 if (q->p_stat == SZOMB &&
1219 ((SCARG(uap, options) & (SVR4_WEXITED|SVR4_WTRAPPED)))) {
1220 *retval = 0;
1221 DPRINTF(("found %d\n", q->p_pid));
1222 if ((error = svr4_setinfo(q, q->p_xstat,
1223 SCARG(uap, info))) != 0)
1224 return error;
1225
1226
1227 if ((SCARG(uap, options) & SVR4_WNOWAIT)) {
1228 DPRINTF(("Don't wait\n"));
1229 return 0;
1230 }
1231
1232 /*
1233 * If we got the child via ptrace(2) or procfs, and
1234 * the parent is different (meaning the process was
1235 * attached, rather than run as a child), then we need
1236 * to give it back to the ol dparent, and send the
1237 * parent a SIGCHLD. The rest of the cleanup will be
1238 * done when the old parent waits on the child.
1239 */
1240 if ((q->p_flag & P_TRACED) &&
1241 q->p_oppid != q->p_pptr->p_pid) {
1242 t = pfind(q->p_oppid);
1243 proc_reparent(q, t ? t : initproc);
1244 q->p_oppid = 0;
1245 q->p_flag &= ~(P_TRACED | P_WAITED);
1246 wakeup((caddr_t)q->p_pptr);
1247 return 0;
1248 }
1249 q->p_xstat = 0;
1250 ruadd(&p->p_stats->p_cru, q->p_ru);
1251
1252 FREE(q->p_ru, M_ZOMBIE);
1253
1254 /*
1255 * Finally finished with old proc entry.
1256 * Unlink it from its process group and free it.
1257 */
1258 leavepgrp(q);
1259
1260 LIST_REMOVE(q, p_list); /* off zombproc */
1261
1262 LIST_REMOVE(q, p_sibling);
1263
1264 /*
1265 * Decrement the count of procs running with this uid.
1266 */
1267 (void)chgproccnt(q->p_ucred->cr_uidinfo, -1, 0);
1268
1269 /*
1270 * Free up credentials.
1271 */
1272 if (--q->p_cred->p_refcnt == 0) {
1273 crfree(q->p_ucred);
1274 FREE(q->p_cred, M_SUBPROC);
1275 }
1276
1277 /*
1278 * Release reference to text vnode
1279 */
1280 if (q->p_textvp)
1281 vrele(q->p_textvp);
1282
1283 /*
1284 * Give machine-dependent layer a chance
1285 * to free anything that cpu_exit couldn't
1286 * release while still running in process context.
1287 */
1288 vm_waitproc(q);
1289 /* XXX what about process 'q' itself? zfree? */
1290#if defined(__NetBSD__)
1291 pool_put(&proc_pool, q);
1292#endif
1293 nprocs--;
1294 return 0;
1295 }
1296 if (q->p_stat == SSTOP && (q->p_flag & P_WAITED) == 0 &&
1297 (q->p_flag & P_TRACED ||
1298 (SCARG(uap, options) & (SVR4_WSTOPPED|SVR4_WCONTINUED)))) {
1299 DPRINTF(("jobcontrol %d\n", q->p_pid));
1300 if (((SCARG(uap, options) & SVR4_WNOWAIT)) == 0)
1301 q->p_flag |= P_WAITED;
1302 *retval = 0;
1303 return svr4_setinfo(q, W_STOPCODE(q->p_xstat),
1304 SCARG(uap, info));
1305 }
1306 }
1307
1308 if (nfound == 0)
1309 return ECHILD;
1310
1311 if (SCARG(uap, options) & SVR4_WNOHANG) {
1312 *retval = 0;
1313 if ((error = svr4_setinfo(NULL, 0, SCARG(uap, info))) != 0)
1314 return error;
1315 return 0;
1316 }
1317
1318 if ((error = tsleep((caddr_t)p, PWAIT | PCATCH, "svr4_wait", 0)) != 0)
1319 return error;
1320 goto loop;
1321}
1322
1323
1324static void
1325bsd_statfs_to_svr4_statvfs(bfs, sfs)
1326 const struct statfs *bfs;
1327 struct svr4_statvfs *sfs;
1328{
1329 sfs->f_bsize = bfs->f_iosize; /* XXX */
1330 sfs->f_frsize = bfs->f_bsize;
1331 sfs->f_blocks = bfs->f_blocks;
1332 sfs->f_bfree = bfs->f_bfree;
1333 sfs->f_bavail = bfs->f_bavail;
1334 sfs->f_files = bfs->f_files;
1335 sfs->f_ffree = bfs->f_ffree;
1336 sfs->f_favail = bfs->f_ffree;
1337 sfs->f_fsid = bfs->f_fsid.val[0];
1338 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype));
1339 sfs->f_flag = 0;
1340 if (bfs->f_flags & MNT_RDONLY)
1341 sfs->f_flag |= SVR4_ST_RDONLY;
1342 if (bfs->f_flags & MNT_NOSUID)
1343 sfs->f_flag |= SVR4_ST_NOSUID;
1344 sfs->f_namemax = MAXNAMLEN;
1345 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */
1346 memset(sfs->f_filler, 0, sizeof(sfs->f_filler));
1347}
1348
1349
1350static void
1351bsd_statfs_to_svr4_statvfs64(bfs, sfs)
1352 const struct statfs *bfs;
1353 struct svr4_statvfs64 *sfs;
1354{
1355 sfs->f_bsize = bfs->f_iosize; /* XXX */
1356 sfs->f_frsize = bfs->f_bsize;
1357 sfs->f_blocks = bfs->f_blocks;
1358 sfs->f_bfree = bfs->f_bfree;
1359 sfs->f_bavail = bfs->f_bavail;
1360 sfs->f_files = bfs->f_files;
1361 sfs->f_ffree = bfs->f_ffree;
1362 sfs->f_favail = bfs->f_ffree;
1363 sfs->f_fsid = bfs->f_fsid.val[0];
1364 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype));
1365 sfs->f_flag = 0;
1366 if (bfs->f_flags & MNT_RDONLY)
1367 sfs->f_flag |= SVR4_ST_RDONLY;
1368 if (bfs->f_flags & MNT_NOSUID)
1369 sfs->f_flag |= SVR4_ST_NOSUID;
1370 sfs->f_namemax = MAXNAMLEN;
1371 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */
1372 memset(sfs->f_filler, 0, sizeof(sfs->f_filler));
1373}
1374
1375
1376int
1377svr4_sys_statvfs(p, uap)
1378 struct proc *p;
1379 struct svr4_sys_statvfs_args *uap;
1380{
1381 struct statfs_args fs_args;
1382 caddr_t sg = stackgap_init();
1383 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1384 struct statfs bfs;
1385 struct svr4_statvfs sfs;
1386 int error;
1387
1388 CHECKALTEXIST(p, &sg, SCARG(uap, path));
1389 SCARG(&fs_args, path) = SCARG(uap, path);
1390 SCARG(&fs_args, buf) = fs;
1391
1392 if ((error = statfs(p, &fs_args)) != 0)
1393 return error;
1394
1395 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1396 return error;
1397
1398 bsd_statfs_to_svr4_statvfs(&bfs, &sfs);
1399
1400 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1401}
1402
1403
1404int
1405svr4_sys_fstatvfs(p, uap)
1406 struct proc *p;
1407 struct svr4_sys_fstatvfs_args *uap;
1408{
1409 struct fstatfs_args fs_args;
1410 caddr_t sg = stackgap_init();
1411 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1412 struct statfs bfs;
1413 struct svr4_statvfs sfs;
1414 int error;
1415
1416 SCARG(&fs_args, fd) = SCARG(uap, fd);
1417 SCARG(&fs_args, buf) = fs;
1418
1419 if ((error = fstatfs(p, &fs_args)) != 0)
1420 return error;
1421
1422 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1423 return error;
1424
1425 bsd_statfs_to_svr4_statvfs(&bfs, &sfs);
1426
1427 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1428}
1429
1430
1431int
1432svr4_sys_statvfs64(p, uap)
1433 struct proc *p;
1434 struct svr4_sys_statvfs64_args *uap;
1435{
1436 struct statfs_args fs_args;
1437 caddr_t sg = stackgap_init();
1438 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1439 struct statfs bfs;
1440 struct svr4_statvfs64 sfs;
1441 int error;
1442
1443 CHECKALTEXIST(p, &sg, SCARG(uap, path));
1444 SCARG(&fs_args, path) = SCARG(uap, path);
1445 SCARG(&fs_args, buf) = fs;
1446
1447 if ((error = statfs(p, &fs_args)) != 0)
1448 return error;
1449
1450 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1451 return error;
1452
1453 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs);
1454
1455 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1456}
1457
1458
1459int
1460svr4_sys_fstatvfs64(p, uap)
1461 struct proc *p;
1462 struct svr4_sys_fstatvfs64_args *uap;
1463{
1464 struct fstatfs_args fs_args;
1465 caddr_t sg = stackgap_init();
1466 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1467 struct statfs bfs;
1468 struct svr4_statvfs64 sfs;
1469 int error;
1470
1471 SCARG(&fs_args, fd) = SCARG(uap, fd);
1472 SCARG(&fs_args, buf) = fs;
1473
1474 if ((error = fstatfs(p, &fs_args)) != 0)
1475 return error;
1476
1477 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1478 return error;
1479
1480 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs);
1481
1482 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1483}
1484
1485int
1486svr4_sys_alarm(p, uap)
1487 struct proc *p;
1488 struct svr4_sys_alarm_args *uap;
1489{
1490 int error;
1491 struct itimerval *itp, *oitp;
1492 struct setitimer_args sa;
1493 caddr_t sg = stackgap_init();
1494
1495 itp = stackgap_alloc(&sg, sizeof(*itp));
1496 oitp = stackgap_alloc(&sg, sizeof(*oitp));
1497 timevalclear(&itp->it_interval);
1498 itp->it_value.tv_sec = SCARG(uap, sec);
1499 itp->it_value.tv_usec = 0;
1500
1501 SCARG(&sa, which) = ITIMER_REAL;
1502 SCARG(&sa, itv) = itp;
1503 SCARG(&sa, oitv) = oitp;
1504 error = setitimer(p, &sa);
1505 if (error)
1506 return error;
1507 if (oitp->it_value.tv_usec)
1508 oitp->it_value.tv_sec++;
1509 p->p_retval[0] = oitp->it_value.tv_sec;
1510 return 0;
1511
1512}
1513
1514int
1515svr4_sys_gettimeofday(p, uap)
1516 struct proc *p;
1517 struct svr4_sys_gettimeofday_args *uap;
1518{
1519 if (SCARG(uap, tp)) {
1520 struct timeval atv;
1521
1522 microtime(&atv);
1523 return copyout(&atv, SCARG(uap, tp), sizeof (atv));
1524 }
1525
1526 return 0;
1527}
1528
1529int
1530svr4_sys_facl(p, uap)
1531 struct proc *p;
1532 struct svr4_sys_facl_args *uap;
1533{
1534 int *retval;
1535
1536 retval = p->p_retval;
1537 *retval = 0;
1538
1539 switch (SCARG(uap, cmd)) {
1540 case SVR4_SYS_SETACL:
1541 /* We don't support acls on any filesystem */
1542 return ENOSYS;
1543
1544 case SVR4_SYS_GETACL:
1545 return copyout(retval, &SCARG(uap, num),
1546 sizeof(SCARG(uap, num)));
1547
1548 case SVR4_SYS_GETACLCNT:
1549 return 0;
1550
1551 default:
1552 return EINVAL;
1553 }
1554}
1555
1556
1557int
1558svr4_sys_acl(p, uap)
1559 struct proc *p;
1560 struct svr4_sys_acl_args *uap;
1561{
1562 /* XXX: for now the same */
1563 return svr4_sys_facl(p, (struct svr4_sys_facl_args *)uap);
1564}
1565
1566int
1567svr4_sys_auditsys(p, uap)
1568 struct proc *p;
1569 struct svr4_sys_auditsys_args *uap;
1570{
1571 /*
1572 * XXX: Big brother is *not* watching.
1573 */
1574 return 0;
1575}
1576
1577int
1578svr4_sys_memcntl(p, uap)
1579 struct proc *p;
1580 struct svr4_sys_memcntl_args *uap;
1581{
1582 switch (SCARG(uap, cmd)) {
1583 case SVR4_MC_SYNC:
1584 {
1585 struct msync_args msa;
1586
1587 SCARG(&msa, addr) = SCARG(uap, addr);
1588 SCARG(&msa, len) = SCARG(uap, len);
1589 SCARG(&msa, flags) = (int)SCARG(uap, arg);
1590
1591 return msync(p, &msa);
1592 }
1593 case SVR4_MC_ADVISE:
1594 {
1595 struct madvise_args maa;
1596
1597 SCARG(&maa, addr) = SCARG(uap, addr);
1598 SCARG(&maa, len) = SCARG(uap, len);
1599 SCARG(&maa, behav) = (int)SCARG(uap, arg);
1600
1601 return madvise(p, &maa);
1602 }
1603 case SVR4_MC_LOCK:
1604 case SVR4_MC_UNLOCK:
1605 case SVR4_MC_LOCKAS:
1606 case SVR4_MC_UNLOCKAS:
1607 return EOPNOTSUPP;
1608 default:
1609 return ENOSYS;
1610 }
1611}
1612
1613
1614int
1615svr4_sys_nice(p, uap)
1616 struct proc *p;
1617 struct svr4_sys_nice_args *uap;
1618{
1619 struct setpriority_args ap;
1620 int error;
1621
1622 SCARG(&ap, which) = PRIO_PROCESS;
1623 SCARG(&ap, who) = 0;
1624 SCARG(&ap, prio) = SCARG(uap, prio);
1625
1626 if ((error = setpriority(p, &ap)) != 0)
1627 return error;
1628
1629 /* the cast is stupid, but the structures are the same */
1630 if ((error = getpriority(p, (struct getpriority_args *)&ap)) != 0)
1631 return error;
1632
1633 return 0;
1634}
1635
1636int
1637svr4_sys_resolvepath(p, uap)
1638 struct proc *p;
1639 struct svr4_sys_resolvepath_args *uap;
1640{
1641 struct nameidata nd;
1642 int error, *retval = p->p_retval;
1643
1644 NDINIT(&nd, LOOKUP, NOFOLLOW | SAVENAME, UIO_USERSPACE,
1645 SCARG(uap, path), p);
1646
1647 if ((error = namei(&nd)) != 0)
1648 return error;
1649
1650 if ((error = copyout(nd.ni_cnd.cn_pnbuf, SCARG(uap, buf),
1651 SCARG(uap, bufsiz))) != 0)
1652 goto bad;
1653
1654 *retval = strlen(nd.ni_cnd.cn_pnbuf) < SCARG(uap, bufsiz) ?
1655 strlen(nd.ni_cnd.cn_pnbuf) + 1 : SCARG(uap, bufsiz);
1656bad:
1657 NDFREE(&nd, NDF_ONLY_PNBUF);
1658 vput(nd.ni_vp);
1659 return error;
1660}