Optimize lwkt_rwlock.c a bit
[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 $
1de703da 29 * $DragonFly: src/sys/emulation/svr4/Attic/svr4_misc.c,v 1.2 2003/06/17 04:28:57 dillon Exp $
984263bc
MD
30 */
31
32/*
33 * SVR4 compatibility module.
34 *
35 * SVR4 system calls that are implemented differently in BSD are
36 * handled here.
37 */
38
39#include <sys/param.h>
40#include <sys/systm.h>
41#include <sys/namei.h>
42#include <sys/dirent.h>
43#include <sys/malloc.h>
44#include <sys/proc.h>
45#include <sys/file.h>
46#include <sys/stat.h>
47#include <sys/time.h>
48#include <sys/file.h>
49#include <sys/filedesc.h>
50#include <sys/kernel.h>
51#include <sys/mman.h>
52#include <sys/mount.h>
53#include <sys/resource.h>
54#include <sys/resourcevar.h>
55#include <sys/vnode.h>
56#include <sys/uio.h>
57#include <sys/wait.h>
58#include <sys/times.h>
59#include <sys/fcntl.h>
60#include <sys/sem.h>
61#include <sys/msg.h>
62#include <sys/ptrace.h>
63#include <vm/vm_zone.h>
64
65#include <sys/sysproto.h>
66
67#include <svr4/svr4.h>
68#include <svr4/svr4_types.h>
69#include <svr4/svr4_signal.h>
70#include <svr4/svr4_proto.h>
71#include <svr4/svr4_util.h>
72#include <svr4/svr4_sysconfig.h>
73#include <svr4/svr4_dirent.h>
74#include <svr4/svr4_acl.h>
75#include <svr4/svr4_ulimit.h>
76#include <svr4/svr4_statvfs.h>
77#include <svr4/svr4_hrt.h>
78#include <svr4/svr4_mman.h>
79#include <svr4/svr4_wait.h>
80
81#include <machine/vmparam.h>
82#include <vm/vm.h>
83#include <vm/vm_param.h>
84#include <vm/vm_map.h>
85
86#if defined(__FreeBSD__)
87#include <vm/vm_extern.h>
88#endif
89
90#if defined(NetBSD)
91# if defined(UVM)
92# include <uvm/uvm_extern.h>
93# endif
94#endif
95
96#define BSD_DIRENT(cp) ((struct dirent *)(cp))
97
98static int svr4_mknod __P((struct proc *, register_t *, char *,
99 svr4_mode_t, svr4_dev_t));
100
101static __inline clock_t timeval_to_clock_t __P((struct timeval *));
102static int svr4_setinfo __P((struct proc *, int, svr4_siginfo_t *));
103
104struct svr4_hrtcntl_args;
105static int svr4_hrtcntl __P((struct proc *, struct svr4_hrtcntl_args *,
106 register_t *));
107static void bsd_statfs_to_svr4_statvfs __P((const struct statfs *,
108 struct svr4_statvfs *));
109static void bsd_statfs_to_svr4_statvfs64 __P((const struct statfs *,
110 struct svr4_statvfs64 *));
111static struct proc *svr4_pfind __P((pid_t pid));
112
113/* BOGUS noop */
114#if defined(BOGUS)
115int
116svr4_sys_setitimer(p, uap)
117 register struct proc *p;
118 struct svr4_sys_setitimer_args *uap;
119{
120 p->p_retval[0] = 0;
121 return 0;
122}
123#endif
124
125int
126svr4_sys_wait(p, uap)
127 struct proc *p;
128 struct svr4_sys_wait_args *uap;
129{
130 struct wait_args w4;
131 int error, *retval = p->p_retval, st, sig;
132 size_t sz = sizeof(*SCARG(&w4, status));
133
134 SCARG(&w4, rusage) = NULL;
135 SCARG(&w4, options) = 0;
136
137 if (SCARG(uap, status) == NULL) {
138 caddr_t sg = stackgap_init();
139
140 SCARG(&w4, status) = stackgap_alloc(&sg, sz);
141 }
142 else
143 SCARG(&w4, status) = SCARG(uap, status);
144
145 SCARG(&w4, pid) = WAIT_ANY;
146
147 if ((error = wait4(p, &w4)) != 0)
148 return error;
149
150 if ((error = copyin(SCARG(&w4, status), &st, sizeof(st))) != 0)
151 return error;
152
153 if (WIFSIGNALED(st)) {
154 sig = WTERMSIG(st);
155 if (sig >= 0 && sig < NSIG)
156 st = (st & ~0177) | SVR4_BSD2SVR4_SIG(sig);
157 } else if (WIFSTOPPED(st)) {
158 sig = WSTOPSIG(st);
159 if (sig >= 0 && sig < NSIG)
160 st = (st & ~0xff00) | (SVR4_BSD2SVR4_SIG(sig) << 8);
161 }
162
163 /*
164 * It looks like wait(2) on svr4/solaris/2.4 returns
165 * the status in retval[1], and the pid on retval[0].
166 */
167 retval[1] = st;
168
169 if (SCARG(uap, status))
170 if ((error = copyout(&st, SCARG(uap, status), sizeof(st))) != 0)
171 return error;
172
173 return 0;
174}
175
176int
177svr4_sys_execv(p, uap)
178 struct proc *p;
179 struct svr4_sys_execv_args *uap;
180{
181 struct execve_args ap;
182 caddr_t sg;
183
184 sg = stackgap_init();
185 CHECKALTEXIST(p, &sg, SCARG(uap, path));
186
187 SCARG(&ap, fname) = SCARG(uap, path);
188 SCARG(&ap, argv) = SCARG(uap, argp);
189 SCARG(&ap, envv) = NULL;
190
191 return execve(p, &ap);
192}
193
194int
195svr4_sys_execve(p, uap)
196 struct proc *p;
197 struct svr4_sys_execve_args *uap;
198{
199 struct execve_args ap;
200 caddr_t sg;
201
202 sg = stackgap_init();
203 CHECKALTEXIST(p, &sg, uap->path);
204
205 SCARG(&ap, fname) = SCARG(uap, path);
206 SCARG(&ap, argv) = SCARG(uap, argp);
207 SCARG(&ap, envv) = SCARG(uap, envp);
208
209 return execve(p, &ap);
210}
211
212int
213svr4_sys_time(p, v)
214 struct proc *p;
215 struct svr4_sys_time_args *v;
216{
217 struct svr4_sys_time_args *uap = v;
218 int error = 0;
219 struct timeval tv;
220
221 microtime(&tv);
222 if (SCARG(uap, t))
223 error = copyout(&tv.tv_sec, SCARG(uap, t),
224 sizeof(*(SCARG(uap, t))));
225 p->p_retval[0] = (int) tv.tv_sec;
226
227 return error;
228}
229
230
231/*
232 * Read SVR4-style directory entries. We suck them into kernel space so
233 * that they can be massaged before being copied out to user code.
234 *
235 * This code is ported from the Linux emulator: Changes to the VFS interface
236 * between FreeBSD and NetBSD have made it simpler to port it from there than
237 * to adapt the NetBSD version.
238 */
239int
240svr4_sys_getdents64(p, uap)
241 struct proc *p;
242 struct svr4_sys_getdents64_args *uap;
243{
244 register struct dirent *bdp;
245 struct vnode *vp;
246 caddr_t inp, buf; /* BSD-format */
247 int len, reclen; /* BSD-format */
248 caddr_t outp; /* SVR4-format */
249 int resid, svr4reclen=0; /* SVR4-format */
250 struct file *fp;
251 struct uio auio;
252 struct iovec aiov;
253 struct vattr va;
254 off_t off;
255 struct svr4_dirent64 svr4_dirent;
256 int buflen, error, eofflag, nbytes, justone;
257 u_long *cookies = NULL, *cookiep;
258 int ncookies;
259
260 DPRINTF(("svr4_sys_getdents64(%d, *, %d)\n",
261 p->p_pid, SCARG(uap, fd), SCARG(uap, nbytes)));
262 if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) {
263 return (error);
264 }
265
266 if ((fp->f_flag & FREAD) == 0)
267 return (EBADF);
268
269 vp = (struct vnode *) fp->f_data;
270
271 if (vp->v_type != VDIR)
272 return (EINVAL);
273
274 if ((error = VOP_GETATTR(vp, &va, p->p_ucred, p))) {
275 return error;
276 }
277
278 nbytes = SCARG(uap, nbytes);
279 if (nbytes == 1) {
280 nbytes = sizeof (struct svr4_dirent64);
281 justone = 1;
282 }
283 else
284 justone = 0;
285
286 off = fp->f_offset;
287#define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */
288 buflen = max(DIRBLKSIZ, nbytes);
289 buflen = min(buflen, MAXBSIZE);
290 buf = malloc(buflen, M_TEMP, M_WAITOK);
291 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
292again:
293 aiov.iov_base = buf;
294 aiov.iov_len = buflen;
295 auio.uio_iov = &aiov;
296 auio.uio_iovcnt = 1;
297 auio.uio_rw = UIO_READ;
298 auio.uio_segflg = UIO_SYSSPACE;
299 auio.uio_procp = p;
300 auio.uio_resid = buflen;
301 auio.uio_offset = off;
302
303 if (cookies) {
304 free(cookies, M_TEMP);
305 cookies = NULL;
306 }
307
308 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag,
309 &ncookies, &cookies);
310 if (error) {
311 goto out;
312 }
313
314 inp = buf;
315 outp = (caddr_t) SCARG(uap, dp);
316 resid = nbytes;
317 if ((len = buflen - auio.uio_resid) <= 0) {
318 goto eof;
319 }
320
321 cookiep = cookies;
322
323 if (cookies) {
324 /*
325 * When using cookies, the vfs has the option of reading from
326 * a different offset than that supplied (UFS truncates the
327 * offset to a block boundary to make sure that it never reads
328 * partway through a directory entry, even if the directory
329 * has been compacted).
330 */
331 while (len > 0 && ncookies > 0 && *cookiep <= off) {
332 bdp = (struct dirent *) inp;
333 len -= bdp->d_reclen;
334 inp += bdp->d_reclen;
335 cookiep++;
336 ncookies--;
337 }
338 }
339
340 while (len > 0) {
341 if (cookiep && ncookies == 0)
342 break;
343 bdp = (struct dirent *) inp;
344 reclen = bdp->d_reclen;
345 if (reclen & 3) {
346 DPRINTF(("svr4_readdir: reclen=%d\n", reclen));
347 error = EFAULT;
348 goto out;
349 }
350
351 if (bdp->d_fileno == 0) {
352 inp += reclen;
353 if (cookiep) {
354 off = *cookiep++;
355 ncookies--;
356 } else
357 off += reclen;
358 len -= reclen;
359 continue;
360 }
361 svr4reclen = SVR4_RECLEN(&svr4_dirent, bdp->d_namlen);
362 if (reclen > len || resid < svr4reclen) {
363 outp++;
364 break;
365 }
366 svr4_dirent.d_ino = (long) bdp->d_fileno;
367 if (justone) {
368 /*
369 * old svr4-style readdir usage.
370 */
371 svr4_dirent.d_off = (svr4_off_t) svr4reclen;
372 svr4_dirent.d_reclen = (u_short) bdp->d_namlen;
373 } else {
374 svr4_dirent.d_off = (svr4_off_t)(off + reclen);
375 svr4_dirent.d_reclen = (u_short) svr4reclen;
376 }
377 strcpy(svr4_dirent.d_name, bdp->d_name);
378 if ((error = copyout((caddr_t)&svr4_dirent, outp, svr4reclen)))
379 goto out;
380 inp += reclen;
381 if (cookiep) {
382 off = *cookiep++;
383 ncookies--;
384 } else
385 off += reclen;
386 outp += svr4reclen;
387 resid -= svr4reclen;
388 len -= reclen;
389 if (justone)
390 break;
391 }
392
393 if (outp == (caddr_t) SCARG(uap, dp))
394 goto again;
395 fp->f_offset = off;
396
397 if (justone)
398 nbytes = resid + svr4reclen;
399
400eof:
401 p->p_retval[0] = nbytes - resid;
402out:
403 if (cookies)
404 free(cookies, M_TEMP);
405 VOP_UNLOCK(vp, 0, p);
406 free(buf, M_TEMP);
407 return error;
408}
409
410
411int
412svr4_sys_getdents(p, uap)
413 struct proc *p;
414 struct svr4_sys_getdents_args *uap;
415{
416 struct dirent *bdp;
417 struct vnode *vp;
418 caddr_t inp, buf; /* BSD-format */
419 int len, reclen; /* BSD-format */
420 caddr_t outp; /* SVR4-format */
421 int resid, svr4_reclen; /* SVR4-format */
422 struct file *fp;
423 struct uio auio;
424 struct iovec aiov;
425 struct svr4_dirent idb;
426 off_t off; /* true file offset */
427 int buflen, error, eofflag;
428 u_long *cookiebuf = NULL, *cookie;
429 int ncookies = 0, *retval = p->p_retval;
430
431 if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0)
432 return (error);
433
434 if ((fp->f_flag & FREAD) == 0)
435 return (EBADF);
436
437 vp = (struct vnode *)fp->f_data;
438 if (vp->v_type != VDIR)
439 return (EINVAL);
440
441 buflen = min(MAXBSIZE, SCARG(uap, nbytes));
442 buf = malloc(buflen, M_TEMP, M_WAITOK);
443 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
444 off = fp->f_offset;
445again:
446 aiov.iov_base = buf;
447 aiov.iov_len = buflen;
448 auio.uio_iov = &aiov;
449 auio.uio_iovcnt = 1;
450 auio.uio_rw = UIO_READ;
451 auio.uio_segflg = UIO_SYSSPACE;
452 auio.uio_procp = p;
453 auio.uio_resid = buflen;
454 auio.uio_offset = off;
455 /*
456 * First we read into the malloc'ed buffer, then
457 * we massage it into user space, one record at a time.
458 */
459 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies,
460 &cookiebuf);
461 if (error)
462 goto out;
463
464 inp = buf;
465 outp = SCARG(uap, buf);
466 resid = SCARG(uap, nbytes);
467 if ((len = buflen - auio.uio_resid) == 0)
468 goto eof;
469
470 for (cookie = cookiebuf; len > 0; len -= reclen) {
471 bdp = (struct dirent *)inp;
472 reclen = bdp->d_reclen;
473 if (reclen & 3)
474 panic("svr4_sys_getdents64: bad reclen");
475 off = *cookie++; /* each entry points to the next */
476 if ((off >> 32) != 0) {
477 uprintf("svr4_sys_getdents64: dir offset too large for emulated program");
478 error = EINVAL;
479 goto out;
480 }
481 if (bdp->d_fileno == 0) {
482 inp += reclen; /* it is a hole; squish it out */
483 continue;
484 }
485 svr4_reclen = SVR4_RECLEN(&idb, bdp->d_namlen);
486 if (reclen > len || resid < svr4_reclen) {
487 /* entry too big for buffer, so just stop */
488 outp++;
489 break;
490 }
491 /*
492 * Massage in place to make a SVR4-shaped dirent (otherwise
493 * we have to worry about touching user memory outside of
494 * the copyout() call).
495 */
496 idb.d_ino = (svr4_ino_t)bdp->d_fileno;
497 idb.d_off = (svr4_off_t)off;
498 idb.d_reclen = (u_short)svr4_reclen;
499 strcpy(idb.d_name, bdp->d_name);
500 if ((error = copyout((caddr_t)&idb, outp, svr4_reclen)))
501 goto out;
502 /* advance past this real entry */
503 inp += reclen;
504 /* advance output past SVR4-shaped entry */
505 outp += svr4_reclen;
506 resid -= svr4_reclen;
507 }
508
509 /* if we squished out the whole block, try again */
510 if (outp == SCARG(uap, buf))
511 goto again;
512 fp->f_offset = off; /* update the vnode offset */
513
514eof:
515 *retval = SCARG(uap, nbytes) - resid;
516out:
517 VOP_UNLOCK(vp, 0, p);
518 if (cookiebuf)
519 free(cookiebuf, M_TEMP);
520 free(buf, M_TEMP);
521 return error;
522}
523
524
525int
526svr4_sys_mmap(p, uap)
527 struct proc *p;
528 struct svr4_sys_mmap_args *uap;
529{
530 struct mmap_args mm;
531 int *retval;
532
533 retval = p->p_retval;
534#define _MAP_NEW 0x80000000
535 /*
536 * Verify the arguments.
537 */
538 if (SCARG(uap, prot) & ~(PROT_READ | PROT_WRITE | PROT_EXEC))
539 return EINVAL; /* XXX still needed? */
540
541 if (SCARG(uap, len) == 0)
542 return EINVAL;
543
544 SCARG(&mm, prot) = SCARG(uap, prot);
545 SCARG(&mm, len) = SCARG(uap, len);
546 SCARG(&mm, flags) = SCARG(uap, flags) & ~_MAP_NEW;
547 SCARG(&mm, fd) = SCARG(uap, fd);
548 SCARG(&mm, addr) = SCARG(uap, addr);
549 SCARG(&mm, pos) = SCARG(uap, pos);
550
551 return mmap(p, &mm);
552}
553
554int
555svr4_sys_mmap64(p, uap)
556 struct proc *p;
557 struct svr4_sys_mmap64_args *uap;
558{
559 struct mmap_args mm;
560 void *rp;
561
562#define _MAP_NEW 0x80000000
563 /*
564 * Verify the arguments.
565 */
566 if (SCARG(uap, prot) & ~(PROT_READ | PROT_WRITE | PROT_EXEC))
567 return EINVAL; /* XXX still needed? */
568
569 if (SCARG(uap, len) == 0)
570 return EINVAL;
571
572 SCARG(&mm, prot) = SCARG(uap, prot);
573 SCARG(&mm, len) = SCARG(uap, len);
574 SCARG(&mm, flags) = SCARG(uap, flags) & ~_MAP_NEW;
575 SCARG(&mm, fd) = SCARG(uap, fd);
576 SCARG(&mm, addr) = SCARG(uap, addr);
577 SCARG(&mm, pos) = SCARG(uap, pos);
578
579 rp = (void *) round_page((vm_offset_t)(p->p_vmspace->vm_daddr + maxdsiz));
580 if ((SCARG(&mm, flags) & MAP_FIXED) == 0 &&
581 SCARG(&mm, addr) != 0 && (void *)SCARG(&mm, addr) < rp)
582 SCARG(&mm, addr) = rp;
583
584 return mmap(p, &mm);
585}
586
587
588int
589svr4_sys_fchroot(p, uap)
590 struct proc *p;
591 struct svr4_sys_fchroot_args *uap;
592{
593 struct filedesc *fdp = p->p_fd;
594 struct vnode *vp;
595 struct file *fp;
596 int error;
597
598 if ((error = suser(p)) != 0)
599 return error;
600 if ((error = getvnode(fdp, SCARG(uap, fd), &fp)) != 0)
601 return error;
602 vp = (struct vnode *) fp->f_data;
603 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
604 if (vp->v_type != VDIR)
605 error = ENOTDIR;
606 else
607 error = VOP_ACCESS(vp, VEXEC, p->p_ucred, p);
608 VOP_UNLOCK(vp, 0, p);
609 if (error)
610 return error;
611 VREF(vp);
612 if (fdp->fd_rdir != NULL)
613 vrele(fdp->fd_rdir);
614 fdp->fd_rdir = vp;
615 return 0;
616}
617
618
619static int
620svr4_mknod(p, retval, path, mode, dev)
621 struct proc *p;
622 register_t *retval;
623 char *path;
624 svr4_mode_t mode;
625 svr4_dev_t dev;
626{
627 caddr_t sg = stackgap_init();
628
629 CHECKALTEXIST(p, &sg, path);
630
631 if (S_ISFIFO(mode)) {
632 struct mkfifo_args ap;
633 SCARG(&ap, path) = path;
634 SCARG(&ap, mode) = mode;
635 return mkfifo(p, &ap);
636 } else {
637 struct mknod_args ap;
638 SCARG(&ap, path) = path;
639 SCARG(&ap, mode) = mode;
640 SCARG(&ap, dev) = dev;
641 return mknod(p, &ap);
642 }
643}
644
645
646int
647svr4_sys_mknod(p, uap)
648 register struct proc *p;
649 struct svr4_sys_mknod_args *uap;
650{
651 int *retval = p->p_retval;
652 return svr4_mknod(p, retval,
653 SCARG(uap, path), SCARG(uap, mode),
654 (svr4_dev_t)svr4_to_bsd_odev_t(SCARG(uap, dev)));
655}
656
657
658int
659svr4_sys_xmknod(p, uap)
660 struct proc *p;
661 struct svr4_sys_xmknod_args *uap;
662{
663 int *retval = p->p_retval;
664 return svr4_mknod(p, retval,
665 SCARG(uap, path), SCARG(uap, mode),
666 (svr4_dev_t)svr4_to_bsd_dev_t(SCARG(uap, dev)));
667}
668
669
670int
671svr4_sys_vhangup(p, uap)
672 struct proc *p;
673 struct svr4_sys_vhangup_args *uap;
674{
675 return 0;
676}
677
678
679int
680svr4_sys_sysconfig(p, uap)
681 struct proc *p;
682 struct svr4_sys_sysconfig_args *uap;
683{
684 int *retval;
685
686 retval = &(p->p_retval[0]);
687
688 switch (SCARG(uap, name)) {
689 case SVR4_CONFIG_UNUSED:
690 *retval = 0;
691 break;
692 case SVR4_CONFIG_NGROUPS:
693 *retval = NGROUPS_MAX;
694 break;
695 case SVR4_CONFIG_CHILD_MAX:
696 *retval = maxproc;
697 break;
698 case SVR4_CONFIG_OPEN_FILES:
699 *retval = maxfiles;
700 break;
701 case SVR4_CONFIG_POSIX_VER:
702 *retval = 198808;
703 break;
704 case SVR4_CONFIG_PAGESIZE:
705 *retval = PAGE_SIZE;
706 break;
707 case SVR4_CONFIG_CLK_TCK:
708 *retval = 60; /* should this be `hz', ie. 100? */
709 break;
710 case SVR4_CONFIG_XOPEN_VER:
711 *retval = 2; /* XXX: What should that be? */
712 break;
713 case SVR4_CONFIG_PROF_TCK:
714 *retval = 60; /* XXX: What should that be? */
715 break;
716 case SVR4_CONFIG_NPROC_CONF:
717 *retval = 1; /* Only one processor for now */
718 break;
719 case SVR4_CONFIG_NPROC_ONLN:
720 *retval = 1; /* And it better be online */
721 break;
722 case SVR4_CONFIG_AIO_LISTIO_MAX:
723 case SVR4_CONFIG_AIO_MAX:
724 case SVR4_CONFIG_AIO_PRIO_DELTA_MAX:
725 *retval = 0; /* No aio support */
726 break;
727 case SVR4_CONFIG_DELAYTIMER_MAX:
728 *retval = 0; /* No delaytimer support */
729 break;
730 case SVR4_CONFIG_MQ_OPEN_MAX:
731 *retval = msginfo.msgmni;
732 break;
733 case SVR4_CONFIG_MQ_PRIO_MAX:
734 *retval = 0; /* XXX: Don't know */
735 break;
736 case SVR4_CONFIG_RTSIG_MAX:
737 *retval = 0;
738 break;
739 case SVR4_CONFIG_SEM_NSEMS_MAX:
740 *retval = seminfo.semmni;
741 break;
742 case SVR4_CONFIG_SEM_VALUE_MAX:
743 *retval = seminfo.semvmx;
744 break;
745 case SVR4_CONFIG_SIGQUEUE_MAX:
746 *retval = 0; /* XXX: Don't know */
747 break;
748 case SVR4_CONFIG_SIGRT_MIN:
749 case SVR4_CONFIG_SIGRT_MAX:
750 *retval = 0; /* No real time signals */
751 break;
752 case SVR4_CONFIG_TIMER_MAX:
753 *retval = 3; /* XXX: real, virtual, profiling */
754 break;
755#if defined(NOTYET)
756 case SVR4_CONFIG_PHYS_PAGES:
757#if defined(UVM)
758 *retval = uvmexp.free; /* XXX: free instead of total */
759#else
760 *retval = cnt.v_free_count; /* XXX: free instead of total */
761#endif
762 break;
763 case SVR4_CONFIG_AVPHYS_PAGES:
764#if defined(UVM)
765 *retval = uvmexp.active; /* XXX: active instead of avg */
766#else
767 *retval = cnt.v_active_count; /* XXX: active instead of avg */
768#endif
769 break;
770#endif /* NOTYET */
771
772 default:
773 return EINVAL;
774 }
775 return 0;
776}
777
778extern int swap_pager_full;
779
780/* ARGSUSED */
781int
782svr4_sys_break(p, uap)
783 struct proc *p;
784 struct svr4_sys_break_args *uap;
785{
786 struct vmspace *vm = p->p_vmspace;
787 vm_offset_t new, old, base, ns;
788 int rv;
789
790 base = round_page((vm_offset_t) vm->vm_daddr);
791 ns = (vm_offset_t)SCARG(uap, nsize);
792 new = round_page(ns);
793 if (new > base) {
794 if ((new - base) > (unsigned) p->p_rlimit[RLIMIT_DATA].rlim_cur) {
795 return ENOMEM;
796 }
797 if (new >= VM_MAXUSER_ADDRESS) {
798 return (ENOMEM);
799 }
800 } else if (new < base) {
801 /*
802 * This is simply an invalid value. If someone wants to
803 * do fancy address space manipulations, mmap and munmap
804 * can do most of what the user would want.
805 */
806 return EINVAL;
807 }
808
809 old = base + ctob(vm->vm_dsize);
810
811 if (new > old) {
812 vm_size_t diff;
813 diff = new - old;
814 if (vm->vm_map.size + diff > p->p_rlimit[RLIMIT_VMEM].rlim_cur)
815 return(ENOMEM);
816 rv = vm_map_find(&vm->vm_map, NULL, 0, &old, diff, FALSE,
817 VM_PROT_ALL, VM_PROT_ALL, 0);
818 if (rv != KERN_SUCCESS) {
819 return (ENOMEM);
820 }
821 vm->vm_dsize += btoc(diff);
822 } else if (new < old) {
823 rv = vm_map_remove(&vm->vm_map, new, old);
824 if (rv != KERN_SUCCESS) {
825 return (ENOMEM);
826 }
827 vm->vm_dsize -= btoc(old - new);
828 }
829
830 return (0);
831}
832
833static __inline clock_t
834timeval_to_clock_t(tv)
835 struct timeval *tv;
836{
837 return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz);
838}
839
840
841int
842svr4_sys_times(p, uap)
843 struct proc *p;
844 struct svr4_sys_times_args *uap;
845{
846 int error, *retval = p->p_retval;
847 struct tms tms;
848 struct timeval t;
849 struct rusage *ru;
850 struct rusage r;
851 struct getrusage_args ga;
852
853 caddr_t sg = stackgap_init();
854 ru = stackgap_alloc(&sg, sizeof(struct rusage));
855
856 SCARG(&ga, who) = RUSAGE_SELF;
857 SCARG(&ga, rusage) = ru;
858
859 error = getrusage(p, &ga);
860 if (error)
861 return error;
862
863 if ((error = copyin(ru, &r, sizeof r)) != 0)
864 return error;
865
866 tms.tms_utime = timeval_to_clock_t(&r.ru_utime);
867 tms.tms_stime = timeval_to_clock_t(&r.ru_stime);
868
869 SCARG(&ga, who) = RUSAGE_CHILDREN;
870 error = getrusage(p, &ga);
871 if (error)
872 return error;
873
874 if ((error = copyin(ru, &r, sizeof r)) != 0)
875 return error;
876
877 tms.tms_cutime = timeval_to_clock_t(&r.ru_utime);
878 tms.tms_cstime = timeval_to_clock_t(&r.ru_stime);
879
880 microtime(&t);
881 *retval = timeval_to_clock_t(&t);
882
883 return copyout(&tms, SCARG(uap, tp), sizeof(tms));
884}
885
886
887int
888svr4_sys_ulimit(p, uap)
889 struct proc *p;
890 struct svr4_sys_ulimit_args *uap;
891{
892 int *retval = p->p_retval;
893
894 switch (SCARG(uap, cmd)) {
895 case SVR4_GFILLIM:
896 *retval = p->p_rlimit[RLIMIT_FSIZE].rlim_cur / 512;
897 if (*retval == -1)
898 *retval = 0x7fffffff;
899 return 0;
900
901 case SVR4_SFILLIM:
902 {
903 int error;
904 struct __setrlimit_args srl;
905 struct rlimit krl;
906 caddr_t sg = stackgap_init();
907 struct rlimit *url = (struct rlimit *)
908 stackgap_alloc(&sg, sizeof *url);
909
910 krl.rlim_cur = SCARG(uap, newlimit) * 512;
911 krl.rlim_max = p->p_rlimit[RLIMIT_FSIZE].rlim_max;
912
913 error = copyout(&krl, url, sizeof(*url));
914 if (error)
915 return error;
916
917 SCARG(&srl, which) = RLIMIT_FSIZE;
918 SCARG(&srl, rlp) = (struct orlimit *)url;
919
920 error = setrlimit(p, &srl);
921 if (error)
922 return error;
923
924 *retval = p->p_rlimit[RLIMIT_FSIZE].rlim_cur;
925 if (*retval == -1)
926 *retval = 0x7fffffff;
927 return 0;
928 }
929
930 case SVR4_GMEMLIM:
931 {
932 struct vmspace *vm = p->p_vmspace;
933 register_t r = p->p_rlimit[RLIMIT_DATA].rlim_cur;
934
935 if (r == -1)
936 r = 0x7fffffff;
937 r += (long) vm->vm_daddr;
938 if (r < 0)
939 r = 0x7fffffff;
940 *retval = r;
941 return 0;
942 }
943
944 case SVR4_GDESLIM:
945 *retval = p->p_rlimit[RLIMIT_NOFILE].rlim_cur;
946 if (*retval == -1)
947 *retval = 0x7fffffff;
948 return 0;
949
950 default:
951 return EINVAL;
952 }
953}
954
955static struct proc *
956svr4_pfind(pid)
957 pid_t pid;
958{
959 struct proc *p;
960
961 /* look in the live processes */
962 if ((p = pfind(pid)) != NULL)
963 return p;
964
965 /* look in the zombies */
966 for (p = zombproc.lh_first; p != 0; p = p->p_list.le_next)
967 if (p->p_pid == pid)
968 return p;
969
970 return NULL;
971}
972
973
974int
975svr4_sys_pgrpsys(p, uap)
976 struct proc *p;
977 struct svr4_sys_pgrpsys_args *uap;
978{
979 int *retval = p->p_retval;
980
981 switch (SCARG(uap, cmd)) {
982 case 1: /* setpgrp() */
983 /*
984 * SVR4 setpgrp() (which takes no arguments) has the
985 * semantics that the session ID is also created anew, so
986 * in almost every sense, setpgrp() is identical to
987 * setsid() for SVR4. (Under BSD, the difference is that
988 * a setpgid(0,0) will not create a new session.)
989 */
990 setsid(p, NULL);
991 /*FALLTHROUGH*/
992
993 case 0: /* getpgrp() */
994 *retval = p->p_pgrp->pg_id;
995 return 0;
996
997 case 2: /* getsid(pid) */
998 if (SCARG(uap, pid) != 0 &&
999 (p = svr4_pfind(SCARG(uap, pid))) == NULL)
1000 return ESRCH;
1001 /*
1002 * This has already been initialized to the pid of
1003 * the session leader.
1004 */
1005 *retval = (register_t) p->p_session->s_leader->p_pid;
1006 return 0;
1007
1008 case 3: /* setsid() */
1009 return setsid(p, NULL);
1010
1011 case 4: /* getpgid(pid) */
1012
1013 if (SCARG(uap, pid) != 0 &&
1014 (p = svr4_pfind(SCARG(uap, pid))) == NULL)
1015 return ESRCH;
1016
1017 *retval = (int) p->p_pgrp->pg_id;
1018 return 0;
1019
1020 case 5: /* setpgid(pid, pgid); */
1021 {
1022 struct setpgid_args sa;
1023
1024 SCARG(&sa, pid) = SCARG(uap, pid);
1025 SCARG(&sa, pgid) = SCARG(uap, pgid);
1026 return setpgid(p, &sa);
1027 }
1028
1029 default:
1030 return EINVAL;
1031 }
1032}
1033
1034#define syscallarg(x) union { x datum; register_t pad; }
1035
1036struct svr4_hrtcntl_args {
1037 int cmd;
1038 int fun;
1039 int clk;
1040 svr4_hrt_interval_t * iv;
1041 svr4_hrt_time_t * ti;
1042};
1043
1044
1045static int
1046svr4_hrtcntl(p, uap, retval)
1047 struct proc *p;
1048 struct svr4_hrtcntl_args *uap;
1049 register_t *retval;
1050{
1051 switch (SCARG(uap, fun)) {
1052 case SVR4_HRT_CNTL_RES:
1053 DPRINTF(("htrcntl(RES)\n"));
1054 *retval = SVR4_HRT_USEC;
1055 return 0;
1056
1057 case SVR4_HRT_CNTL_TOFD:
1058 DPRINTF(("htrcntl(TOFD)\n"));
1059 {
1060 struct timeval tv;
1061 svr4_hrt_time_t t;
1062 if (SCARG(uap, clk) != SVR4_HRT_CLK_STD) {
1063 DPRINTF(("clk == %d\n", SCARG(uap, clk)));
1064 return EINVAL;
1065 }
1066 if (SCARG(uap, ti) == NULL) {
1067 DPRINTF(("ti NULL\n"));
1068 return EINVAL;
1069 }
1070 microtime(&tv);
1071 t.h_sec = tv.tv_sec;
1072 t.h_rem = tv.tv_usec;
1073 t.h_res = SVR4_HRT_USEC;
1074 return copyout(&t, SCARG(uap, ti), sizeof(t));
1075 }
1076
1077 case SVR4_HRT_CNTL_START:
1078 DPRINTF(("htrcntl(START)\n"));
1079 return ENOSYS;
1080
1081 case SVR4_HRT_CNTL_GET:
1082 DPRINTF(("htrcntl(GET)\n"));
1083 return ENOSYS;
1084 default:
1085 DPRINTF(("Bad htrcntl command %d\n", SCARG(uap, fun)));
1086 return ENOSYS;
1087 }
1088}
1089
1090
1091int
1092svr4_sys_hrtsys(p, uap)
1093 struct proc *p;
1094 struct svr4_sys_hrtsys_args *uap;
1095{
1096 int *retval = p->p_retval;
1097
1098 switch (SCARG(uap, cmd)) {
1099 case SVR4_HRT_CNTL:
1100 return svr4_hrtcntl(p, (struct svr4_hrtcntl_args *) uap,
1101 retval);
1102
1103 case SVR4_HRT_ALRM:
1104 DPRINTF(("hrtalarm\n"));
1105 return ENOSYS;
1106
1107 case SVR4_HRT_SLP:
1108 DPRINTF(("hrtsleep\n"));
1109 return ENOSYS;
1110
1111 case SVR4_HRT_CAN:
1112 DPRINTF(("hrtcancel\n"));
1113 return ENOSYS;
1114
1115 default:
1116 DPRINTF(("Bad hrtsys command %d\n", SCARG(uap, cmd)));
1117 return EINVAL;
1118 }
1119}
1120
1121
1122static int
1123svr4_setinfo(p, st, s)
1124 struct proc *p;
1125 int st;
1126 svr4_siginfo_t *s;
1127{
1128 svr4_siginfo_t i;
1129 int sig;
1130
1131 memset(&i, 0, sizeof(i));
1132
1133 i.si_signo = SVR4_SIGCHLD;
1134 i.si_errno = 0; /* XXX? */
1135
1136 if (p) {
1137 i.si_pid = p->p_pid;
1138 if (p->p_stat == SZOMB) {
1139 i.si_stime = p->p_ru->ru_stime.tv_sec;
1140 i.si_utime = p->p_ru->ru_utime.tv_sec;
1141 }
1142 else {
1143 i.si_stime = p->p_stats->p_ru.ru_stime.tv_sec;
1144 i.si_utime = p->p_stats->p_ru.ru_utime.tv_sec;
1145 }
1146 }
1147
1148 if (WIFEXITED(st)) {
1149 i.si_status = WEXITSTATUS(st);
1150 i.si_code = SVR4_CLD_EXITED;
1151 } else if (WIFSTOPPED(st)) {
1152 sig = WSTOPSIG(st);
1153 if (sig >= 0 && sig < NSIG)
1154 i.si_status = SVR4_BSD2SVR4_SIG(sig);
1155
1156 if (i.si_status == SVR4_SIGCONT)
1157 i.si_code = SVR4_CLD_CONTINUED;
1158 else
1159 i.si_code = SVR4_CLD_STOPPED;
1160 } else {
1161 sig = WTERMSIG(st);
1162 if (sig >= 0 && sig < NSIG)
1163 i.si_status = SVR4_BSD2SVR4_SIG(sig);
1164
1165 if (WCOREDUMP(st))
1166 i.si_code = SVR4_CLD_DUMPED;
1167 else
1168 i.si_code = SVR4_CLD_KILLED;
1169 }
1170
1171 DPRINTF(("siginfo [pid %ld signo %d code %d errno %d status %d]\n",
1172 i.si_pid, i.si_signo, i.si_code, i.si_errno, i.si_status));
1173
1174 return copyout(&i, s, sizeof(i));
1175}
1176
1177
1178int
1179svr4_sys_waitsys(p, uap)
1180 struct proc *p;
1181 struct svr4_sys_waitsys_args *uap;
1182{
1183 int nfound;
1184 int error, *retval = p->p_retval;
1185 struct proc *q, *t;
1186
1187
1188 switch (SCARG(uap, grp)) {
1189 case SVR4_P_PID:
1190 break;
1191
1192 case SVR4_P_PGID:
1193 SCARG(uap, id) = -p->p_pgid;
1194 break;
1195
1196 case SVR4_P_ALL:
1197 SCARG(uap, id) = WAIT_ANY;
1198 break;
1199
1200 default:
1201 return EINVAL;
1202 }
1203
1204 DPRINTF(("waitsys(%d, %d, %p, %x)\n",
1205 SCARG(uap, grp), SCARG(uap, id),
1206 SCARG(uap, info), SCARG(uap, options)));
1207
1208loop:
1209 nfound = 0;
1210 for (q = p->p_children.lh_first; q != 0; q = q->p_sibling.le_next) {
1211 if (SCARG(uap, id) != WAIT_ANY &&
1212 q->p_pid != SCARG(uap, id) &&
1213 q->p_pgid != -SCARG(uap, id)) {
1214 DPRINTF(("pid %d pgid %d != %d\n", q->p_pid,
1215 q->p_pgid, SCARG(uap, id)));
1216 continue;
1217 }
1218 nfound++;
1219 if (q->p_stat == SZOMB &&
1220 ((SCARG(uap, options) & (SVR4_WEXITED|SVR4_WTRAPPED)))) {
1221 *retval = 0;
1222 DPRINTF(("found %d\n", q->p_pid));
1223 if ((error = svr4_setinfo(q, q->p_xstat,
1224 SCARG(uap, info))) != 0)
1225 return error;
1226
1227
1228 if ((SCARG(uap, options) & SVR4_WNOWAIT)) {
1229 DPRINTF(("Don't wait\n"));
1230 return 0;
1231 }
1232
1233 /*
1234 * If we got the child via ptrace(2) or procfs, and
1235 * the parent is different (meaning the process was
1236 * attached, rather than run as a child), then we need
1237 * to give it back to the ol dparent, and send the
1238 * parent a SIGCHLD. The rest of the cleanup will be
1239 * done when the old parent waits on the child.
1240 */
1241 if ((q->p_flag & P_TRACED) &&
1242 q->p_oppid != q->p_pptr->p_pid) {
1243 t = pfind(q->p_oppid);
1244 proc_reparent(q, t ? t : initproc);
1245 q->p_oppid = 0;
1246 q->p_flag &= ~(P_TRACED | P_WAITED);
1247 wakeup((caddr_t)q->p_pptr);
1248 return 0;
1249 }
1250 q->p_xstat = 0;
1251 ruadd(&p->p_stats->p_cru, q->p_ru);
1252
1253 FREE(q->p_ru, M_ZOMBIE);
1254
1255 /*
1256 * Finally finished with old proc entry.
1257 * Unlink it from its process group and free it.
1258 */
1259 leavepgrp(q);
1260
1261 LIST_REMOVE(q, p_list); /* off zombproc */
1262
1263 LIST_REMOVE(q, p_sibling);
1264
1265 /*
1266 * Decrement the count of procs running with this uid.
1267 */
1268 (void)chgproccnt(q->p_ucred->cr_uidinfo, -1, 0);
1269
1270 /*
1271 * Free up credentials.
1272 */
1273 if (--q->p_cred->p_refcnt == 0) {
1274 crfree(q->p_ucred);
1275 FREE(q->p_cred, M_SUBPROC);
1276 }
1277
1278 /*
1279 * Release reference to text vnode
1280 */
1281 if (q->p_textvp)
1282 vrele(q->p_textvp);
1283
1284 /*
1285 * Give machine-dependent layer a chance
1286 * to free anything that cpu_exit couldn't
1287 * release while still running in process context.
1288 */
1289 vm_waitproc(q);
1290 /* XXX what about process 'q' itself? zfree? */
1291#if defined(__NetBSD__)
1292 pool_put(&proc_pool, q);
1293#endif
1294 nprocs--;
1295 return 0;
1296 }
1297 if (q->p_stat == SSTOP && (q->p_flag & P_WAITED) == 0 &&
1298 (q->p_flag & P_TRACED ||
1299 (SCARG(uap, options) & (SVR4_WSTOPPED|SVR4_WCONTINUED)))) {
1300 DPRINTF(("jobcontrol %d\n", q->p_pid));
1301 if (((SCARG(uap, options) & SVR4_WNOWAIT)) == 0)
1302 q->p_flag |= P_WAITED;
1303 *retval = 0;
1304 return svr4_setinfo(q, W_STOPCODE(q->p_xstat),
1305 SCARG(uap, info));
1306 }
1307 }
1308
1309 if (nfound == 0)
1310 return ECHILD;
1311
1312 if (SCARG(uap, options) & SVR4_WNOHANG) {
1313 *retval = 0;
1314 if ((error = svr4_setinfo(NULL, 0, SCARG(uap, info))) != 0)
1315 return error;
1316 return 0;
1317 }
1318
1319 if ((error = tsleep((caddr_t)p, PWAIT | PCATCH, "svr4_wait", 0)) != 0)
1320 return error;
1321 goto loop;
1322}
1323
1324
1325static void
1326bsd_statfs_to_svr4_statvfs(bfs, sfs)
1327 const struct statfs *bfs;
1328 struct svr4_statvfs *sfs;
1329{
1330 sfs->f_bsize = bfs->f_iosize; /* XXX */
1331 sfs->f_frsize = bfs->f_bsize;
1332 sfs->f_blocks = bfs->f_blocks;
1333 sfs->f_bfree = bfs->f_bfree;
1334 sfs->f_bavail = bfs->f_bavail;
1335 sfs->f_files = bfs->f_files;
1336 sfs->f_ffree = bfs->f_ffree;
1337 sfs->f_favail = bfs->f_ffree;
1338 sfs->f_fsid = bfs->f_fsid.val[0];
1339 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype));
1340 sfs->f_flag = 0;
1341 if (bfs->f_flags & MNT_RDONLY)
1342 sfs->f_flag |= SVR4_ST_RDONLY;
1343 if (bfs->f_flags & MNT_NOSUID)
1344 sfs->f_flag |= SVR4_ST_NOSUID;
1345 sfs->f_namemax = MAXNAMLEN;
1346 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */
1347 memset(sfs->f_filler, 0, sizeof(sfs->f_filler));
1348}
1349
1350
1351static void
1352bsd_statfs_to_svr4_statvfs64(bfs, sfs)
1353 const struct statfs *bfs;
1354 struct svr4_statvfs64 *sfs;
1355{
1356 sfs->f_bsize = bfs->f_iosize; /* XXX */
1357 sfs->f_frsize = bfs->f_bsize;
1358 sfs->f_blocks = bfs->f_blocks;
1359 sfs->f_bfree = bfs->f_bfree;
1360 sfs->f_bavail = bfs->f_bavail;
1361 sfs->f_files = bfs->f_files;
1362 sfs->f_ffree = bfs->f_ffree;
1363 sfs->f_favail = bfs->f_ffree;
1364 sfs->f_fsid = bfs->f_fsid.val[0];
1365 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype));
1366 sfs->f_flag = 0;
1367 if (bfs->f_flags & MNT_RDONLY)
1368 sfs->f_flag |= SVR4_ST_RDONLY;
1369 if (bfs->f_flags & MNT_NOSUID)
1370 sfs->f_flag |= SVR4_ST_NOSUID;
1371 sfs->f_namemax = MAXNAMLEN;
1372 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */
1373 memset(sfs->f_filler, 0, sizeof(sfs->f_filler));
1374}
1375
1376
1377int
1378svr4_sys_statvfs(p, uap)
1379 struct proc *p;
1380 struct svr4_sys_statvfs_args *uap;
1381{
1382 struct statfs_args fs_args;
1383 caddr_t sg = stackgap_init();
1384 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1385 struct statfs bfs;
1386 struct svr4_statvfs sfs;
1387 int error;
1388
1389 CHECKALTEXIST(p, &sg, SCARG(uap, path));
1390 SCARG(&fs_args, path) = SCARG(uap, path);
1391 SCARG(&fs_args, buf) = fs;
1392
1393 if ((error = statfs(p, &fs_args)) != 0)
1394 return error;
1395
1396 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1397 return error;
1398
1399 bsd_statfs_to_svr4_statvfs(&bfs, &sfs);
1400
1401 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1402}
1403
1404
1405int
1406svr4_sys_fstatvfs(p, uap)
1407 struct proc *p;
1408 struct svr4_sys_fstatvfs_args *uap;
1409{
1410 struct fstatfs_args fs_args;
1411 caddr_t sg = stackgap_init();
1412 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1413 struct statfs bfs;
1414 struct svr4_statvfs sfs;
1415 int error;
1416
1417 SCARG(&fs_args, fd) = SCARG(uap, fd);
1418 SCARG(&fs_args, buf) = fs;
1419
1420 if ((error = fstatfs(p, &fs_args)) != 0)
1421 return error;
1422
1423 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1424 return error;
1425
1426 bsd_statfs_to_svr4_statvfs(&bfs, &sfs);
1427
1428 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1429}
1430
1431
1432int
1433svr4_sys_statvfs64(p, uap)
1434 struct proc *p;
1435 struct svr4_sys_statvfs64_args *uap;
1436{
1437 struct statfs_args fs_args;
1438 caddr_t sg = stackgap_init();
1439 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1440 struct statfs bfs;
1441 struct svr4_statvfs64 sfs;
1442 int error;
1443
1444 CHECKALTEXIST(p, &sg, SCARG(uap, path));
1445 SCARG(&fs_args, path) = SCARG(uap, path);
1446 SCARG(&fs_args, buf) = fs;
1447
1448 if ((error = statfs(p, &fs_args)) != 0)
1449 return error;
1450
1451 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1452 return error;
1453
1454 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs);
1455
1456 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1457}
1458
1459
1460int
1461svr4_sys_fstatvfs64(p, uap)
1462 struct proc *p;
1463 struct svr4_sys_fstatvfs64_args *uap;
1464{
1465 struct fstatfs_args fs_args;
1466 caddr_t sg = stackgap_init();
1467 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1468 struct statfs bfs;
1469 struct svr4_statvfs64 sfs;
1470 int error;
1471
1472 SCARG(&fs_args, fd) = SCARG(uap, fd);
1473 SCARG(&fs_args, buf) = fs;
1474
1475 if ((error = fstatfs(p, &fs_args)) != 0)
1476 return error;
1477
1478 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1479 return error;
1480
1481 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs);
1482
1483 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1484}
1485
1486int
1487svr4_sys_alarm(p, uap)
1488 struct proc *p;
1489 struct svr4_sys_alarm_args *uap;
1490{
1491 int error;
1492 struct itimerval *itp, *oitp;
1493 struct setitimer_args sa;
1494 caddr_t sg = stackgap_init();
1495
1496 itp = stackgap_alloc(&sg, sizeof(*itp));
1497 oitp = stackgap_alloc(&sg, sizeof(*oitp));
1498 timevalclear(&itp->it_interval);
1499 itp->it_value.tv_sec = SCARG(uap, sec);
1500 itp->it_value.tv_usec = 0;
1501
1502 SCARG(&sa, which) = ITIMER_REAL;
1503 SCARG(&sa, itv) = itp;
1504 SCARG(&sa, oitv) = oitp;
1505 error = setitimer(p, &sa);
1506 if (error)
1507 return error;
1508 if (oitp->it_value.tv_usec)
1509 oitp->it_value.tv_sec++;
1510 p->p_retval[0] = oitp->it_value.tv_sec;
1511 return 0;
1512
1513}
1514
1515int
1516svr4_sys_gettimeofday(p, uap)
1517 struct proc *p;
1518 struct svr4_sys_gettimeofday_args *uap;
1519{
1520 if (SCARG(uap, tp)) {
1521 struct timeval atv;
1522
1523 microtime(&atv);
1524 return copyout(&atv, SCARG(uap, tp), sizeof (atv));
1525 }
1526
1527 return 0;
1528}
1529
1530int
1531svr4_sys_facl(p, uap)
1532 struct proc *p;
1533 struct svr4_sys_facl_args *uap;
1534{
1535 int *retval;
1536
1537 retval = p->p_retval;
1538 *retval = 0;
1539
1540 switch (SCARG(uap, cmd)) {
1541 case SVR4_SYS_SETACL:
1542 /* We don't support acls on any filesystem */
1543 return ENOSYS;
1544
1545 case SVR4_SYS_GETACL:
1546 return copyout(retval, &SCARG(uap, num),
1547 sizeof(SCARG(uap, num)));
1548
1549 case SVR4_SYS_GETACLCNT:
1550 return 0;
1551
1552 default:
1553 return EINVAL;
1554 }
1555}
1556
1557
1558int
1559svr4_sys_acl(p, uap)
1560 struct proc *p;
1561 struct svr4_sys_acl_args *uap;
1562{
1563 /* XXX: for now the same */
1564 return svr4_sys_facl(p, (struct svr4_sys_facl_args *)uap);
1565}
1566
1567int
1568svr4_sys_auditsys(p, uap)
1569 struct proc *p;
1570 struct svr4_sys_auditsys_args *uap;
1571{
1572 /*
1573 * XXX: Big brother is *not* watching.
1574 */
1575 return 0;
1576}
1577
1578int
1579svr4_sys_memcntl(p, uap)
1580 struct proc *p;
1581 struct svr4_sys_memcntl_args *uap;
1582{
1583 switch (SCARG(uap, cmd)) {
1584 case SVR4_MC_SYNC:
1585 {
1586 struct msync_args msa;
1587
1588 SCARG(&msa, addr) = SCARG(uap, addr);
1589 SCARG(&msa, len) = SCARG(uap, len);
1590 SCARG(&msa, flags) = (int)SCARG(uap, arg);
1591
1592 return msync(p, &msa);
1593 }
1594 case SVR4_MC_ADVISE:
1595 {
1596 struct madvise_args maa;
1597
1598 SCARG(&maa, addr) = SCARG(uap, addr);
1599 SCARG(&maa, len) = SCARG(uap, len);
1600 SCARG(&maa, behav) = (int)SCARG(uap, arg);
1601
1602 return madvise(p, &maa);
1603 }
1604 case SVR4_MC_LOCK:
1605 case SVR4_MC_UNLOCK:
1606 case SVR4_MC_LOCKAS:
1607 case SVR4_MC_UNLOCKAS:
1608 return EOPNOTSUPP;
1609 default:
1610 return ENOSYS;
1611 }
1612}
1613
1614
1615int
1616svr4_sys_nice(p, uap)
1617 struct proc *p;
1618 struct svr4_sys_nice_args *uap;
1619{
1620 struct setpriority_args ap;
1621 int error;
1622
1623 SCARG(&ap, which) = PRIO_PROCESS;
1624 SCARG(&ap, who) = 0;
1625 SCARG(&ap, prio) = SCARG(uap, prio);
1626
1627 if ((error = setpriority(p, &ap)) != 0)
1628 return error;
1629
1630 /* the cast is stupid, but the structures are the same */
1631 if ((error = getpriority(p, (struct getpriority_args *)&ap)) != 0)
1632 return error;
1633
1634 return 0;
1635}
1636
1637int
1638svr4_sys_resolvepath(p, uap)
1639 struct proc *p;
1640 struct svr4_sys_resolvepath_args *uap;
1641{
1642 struct nameidata nd;
1643 int error, *retval = p->p_retval;
1644
1645 NDINIT(&nd, LOOKUP, NOFOLLOW | SAVENAME, UIO_USERSPACE,
1646 SCARG(uap, path), p);
1647
1648 if ((error = namei(&nd)) != 0)
1649 return error;
1650
1651 if ((error = copyout(nd.ni_cnd.cn_pnbuf, SCARG(uap, buf),
1652 SCARG(uap, bufsiz))) != 0)
1653 goto bad;
1654
1655 *retval = strlen(nd.ni_cnd.cn_pnbuf) < SCARG(uap, bufsiz) ?
1656 strlen(nd.ni_cnd.cn_pnbuf) + 1 : SCARG(uap, bufsiz);
1657bad:
1658 NDFREE(&nd, NDF_ONLY_PNBUF);
1659 vput(nd.ni_vp);
1660 return error;
1661}