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/dirent.h>
41#include <sys/fcntl.h>
42#include <sys/filedesc.h>
43#include <sys/jail.h>
44#include <sys/kernel.h>
45#include <sys/lock.h>
46#include <sys/malloc.h>
47#include <sys/file.h> /* Must come after sys/malloc.h */
48#include <sys/mman.h>
49#include <sys/mount.h>
50#include <sys/msg.h>
51#include <sys/mutex.h>
52#include <sys/namei.h>
53#include <sys/proc.h>
54#include <sys/ptrace.h>
55#include <sys/resource.h>
56#include <sys/resourcevar.h>
57#include <sys/sem.h>
58#include <sys/stat.h>
59#include <sys/sx.h>
60#include <sys/sysproto.h>
61#include <sys/time.h>
62#include <sys/times.h>
63#include <sys/uio.h>
64#include <sys/user.h>
65#include <sys/vnode.h>
66#include <sys/wait.h>
67
68#include <compat/svr4/svr4.h>
69#include <compat/svr4/svr4_types.h>
70#include <compat/svr4/svr4_signal.h>
71#include <compat/svr4/svr4_proto.h>
72#include <compat/svr4/svr4_util.h>
73#include <compat/svr4/svr4_sysconfig.h>
74#include <compat/svr4/svr4_dirent.h>
75#include <compat/svr4/svr4_acl.h>
76#include <compat/svr4/svr4_ulimit.h>
77#include <compat/svr4/svr4_statvfs.h>
78#include <compat/svr4/svr4_hrt.h>
79#include <compat/svr4/svr4_mman.h>
80#include <compat/svr4/svr4_wait.h>
81
82#include <machine/vmparam.h>
83#include <vm/vm.h>
84#include <vm/vm_param.h>
85#include <vm/vm_map.h>
86#if defined(__FreeBSD__)
87#include <vm/vm_zone.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 thread *, 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 thread *, 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(td, uap)
117 register struct thread *td;
118 struct svr4_sys_setitimer_args *uap;
119{
120 td->td_retval[0] = 0;
121 return 0;
122}
123#endif
124
125int
126svr4_sys_wait(td, uap)
127 struct thread *td;
128 struct svr4_sys_wait_args *uap;
129{
130 struct wait_args w4;
131 int error, *retval = td->td_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(td, &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(td, uap)
178 struct thread *td;
179 struct svr4_sys_execv_args *uap;
180{
181 struct execve_args ap;
182 caddr_t sg;
183
184 sg = stackgap_init();
185 CHECKALTEXIST(td, &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(td, &ap);
192}
193
194int
195svr4_sys_execve(td, uap)
196 struct thread *td;
197 struct svr4_sys_execve_args *uap;
198{
199 struct execve_args ap;
200 caddr_t sg;
201
202 sg = stackgap_init();
203 CHECKALTEXIST(td, &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(td, &ap);
210}
211
212int
213svr4_sys_time(td, v)
214 struct thread *td;
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 td->td_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(td, uap)
241 struct thread *td;
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 td->td_proc->p_pid, SCARG(uap, fd), SCARG(uap, nbytes)));
262 if ((error = getvnode(td->td_proc->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, td->td_proc->p_ucred, td))) {
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, td);
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_td = td;
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 td->td_retval[0] = nbytes - resid;
402out:
403 if (cookies)
404 free(cookies, M_TEMP);
405 VOP_UNLOCK(vp, 0, td);
406 free(buf, M_TEMP);
407 return error;
408}
409
410
411int
412svr4_sys_getdents(td, uap)
413 struct thread *td;
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 = td->td_retval;
430
431 if ((error = getvnode(td->td_proc->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, td);
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_td = td;
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, td);
518 if (cookiebuf)
519 free(cookiebuf, M_TEMP);
520 free(buf, M_TEMP);
521 return error;
522}
523
524
525int
526svr4_sys_mmap(td, uap)
527 struct thread *td;
528 struct svr4_sys_mmap_args *uap;
529{
530 struct mmap_args mm;
531 int *retval;
532
533 retval = td->td_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(td, &mm);
552}
553
554int
555svr4_sys_mmap64(td, uap)
556 struct thread *td;
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
| 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/dirent.h>
41#include <sys/fcntl.h>
42#include <sys/filedesc.h>
43#include <sys/jail.h>
44#include <sys/kernel.h>
45#include <sys/lock.h>
46#include <sys/malloc.h>
47#include <sys/file.h> /* Must come after sys/malloc.h */
48#include <sys/mman.h>
49#include <sys/mount.h>
50#include <sys/msg.h>
51#include <sys/mutex.h>
52#include <sys/namei.h>
53#include <sys/proc.h>
54#include <sys/ptrace.h>
55#include <sys/resource.h>
56#include <sys/resourcevar.h>
57#include <sys/sem.h>
58#include <sys/stat.h>
59#include <sys/sx.h>
60#include <sys/sysproto.h>
61#include <sys/time.h>
62#include <sys/times.h>
63#include <sys/uio.h>
64#include <sys/user.h>
65#include <sys/vnode.h>
66#include <sys/wait.h>
67
68#include <compat/svr4/svr4.h>
69#include <compat/svr4/svr4_types.h>
70#include <compat/svr4/svr4_signal.h>
71#include <compat/svr4/svr4_proto.h>
72#include <compat/svr4/svr4_util.h>
73#include <compat/svr4/svr4_sysconfig.h>
74#include <compat/svr4/svr4_dirent.h>
75#include <compat/svr4/svr4_acl.h>
76#include <compat/svr4/svr4_ulimit.h>
77#include <compat/svr4/svr4_statvfs.h>
78#include <compat/svr4/svr4_hrt.h>
79#include <compat/svr4/svr4_mman.h>
80#include <compat/svr4/svr4_wait.h>
81
82#include <machine/vmparam.h>
83#include <vm/vm.h>
84#include <vm/vm_param.h>
85#include <vm/vm_map.h>
86#if defined(__FreeBSD__)
87#include <vm/vm_zone.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 thread *, 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 thread *, 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(td, uap)
117 register struct thread *td;
118 struct svr4_sys_setitimer_args *uap;
119{
120 td->td_retval[0] = 0;
121 return 0;
122}
123#endif
124
125int
126svr4_sys_wait(td, uap)
127 struct thread *td;
128 struct svr4_sys_wait_args *uap;
129{
130 struct wait_args w4;
131 int error, *retval = td->td_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(td, &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(td, uap)
178 struct thread *td;
179 struct svr4_sys_execv_args *uap;
180{
181 struct execve_args ap;
182 caddr_t sg;
183
184 sg = stackgap_init();
185 CHECKALTEXIST(td, &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(td, &ap);
192}
193
194int
195svr4_sys_execve(td, uap)
196 struct thread *td;
197 struct svr4_sys_execve_args *uap;
198{
199 struct execve_args ap;
200 caddr_t sg;
201
202 sg = stackgap_init();
203 CHECKALTEXIST(td, &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(td, &ap);
210}
211
212int
213svr4_sys_time(td, v)
214 struct thread *td;
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 td->td_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(td, uap)
241 struct thread *td;
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 td->td_proc->p_pid, SCARG(uap, fd), SCARG(uap, nbytes)));
262 if ((error = getvnode(td->td_proc->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, td->td_proc->p_ucred, td))) {
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, td);
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_td = td;
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 td->td_retval[0] = nbytes - resid;
402out:
403 if (cookies)
404 free(cookies, M_TEMP);
405 VOP_UNLOCK(vp, 0, td);
406 free(buf, M_TEMP);
407 return error;
408}
409
410
411int
412svr4_sys_getdents(td, uap)
413 struct thread *td;
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 = td->td_retval;
430
431 if ((error = getvnode(td->td_proc->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, td);
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_td = td;
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, td);
518 if (cookiebuf)
519 free(cookiebuf, M_TEMP);
520 free(buf, M_TEMP);
521 return error;
522}
523
524
525int
526svr4_sys_mmap(td, uap)
527 struct thread *td;
528 struct svr4_sys_mmap_args *uap;
529{
530 struct mmap_args mm;
531 int *retval;
532
533 retval = td->td_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(td, &mm);
552}
553
554int
555svr4_sys_mmap64(td, uap)
556 struct thread *td;
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
|
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(td, &mm);
585}
586
587
588int
589svr4_sys_fchroot(td, uap)
590 struct thread *td;
591 struct svr4_sys_fchroot_args *uap;
592{
593 struct filedesc *fdp = td->td_proc->p_fd;
594 struct vnode *vp;
595 struct file *fp;
596 int error;
597
598 if ((error = suser_td(td)) != 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, td);
604 if (vp->v_type != VDIR)
605 error = ENOTDIR;
606 else
607 error = VOP_ACCESS(vp, VEXEC, td->td_proc->p_ucred, td);
608 VOP_UNLOCK(vp, 0, td);
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(td, retval, path, mode, dev)
621 struct thread *td;
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(td, &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(td, &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(td, &ap);
642 }
643}
644
645
646int
647svr4_sys_mknod(td, uap)
648 register struct thread *td;
649 struct svr4_sys_mknod_args *uap;
650{
651 int *retval = td->td_retval;
652 return svr4_mknod(td, 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(td, uap)
660 struct thread *td;
661 struct svr4_sys_xmknod_args *uap;
662{
663 int *retval = td->td_retval;
664 return svr4_mknod(td, 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(td, uap)
672 struct thread *td;
673 struct svr4_sys_vhangup_args *uap;
674{
675 return 0;
676}
677
678
679int
680svr4_sys_sysconfig(td, uap)
681 struct thread *td;
682 struct svr4_sys_sysconfig_args *uap;
683{
684 int *retval;
685
686 retval = &(td->td_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(td, uap)
783 struct thread *td;
784 struct svr4_sys_break_args *uap;
785{
786 struct vmspace *vm = td->td_proc->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 /* For p_rlimit. */
794 mtx_assert(&Giant, MA_OWNED);
795 if (new > base) {
796 if ((new - base) > (unsigned) td->td_proc->p_rlimit[RLIMIT_DATA].rlim_cur) {
797 return ENOMEM;
798 }
799 if (new >= VM_MAXUSER_ADDRESS) {
800 return (ENOMEM);
801 }
802 } else if (new < base) {
803 /*
804 * This is simply an invalid value. If someone wants to
805 * do fancy address space manipulations, mmap and munmap
806 * can do most of what the user would want.
807 */
808 return EINVAL;
809 }
810
811 old = base + ctob(vm->vm_dsize);
812
813 if (new > old) {
814 vm_size_t diff;
815 if (swap_pager_full) {
816 return (ENOMEM);
817 }
818 diff = new - old;
819 rv = vm_map_find(&vm->vm_map, NULL, 0, &old, diff, FALSE,
820 VM_PROT_ALL, VM_PROT_ALL, 0);
821 if (rv != KERN_SUCCESS) {
822 return (ENOMEM);
823 }
824 vm->vm_dsize += btoc(diff);
825 } else if (new < old) {
826 rv = vm_map_remove(&vm->vm_map, new, old);
827 if (rv != KERN_SUCCESS) {
828 return (ENOMEM);
829 }
830 vm->vm_dsize -= btoc(old - new);
831 }
832
833 return (0);
834}
835
836static __inline clock_t
837timeval_to_clock_t(tv)
838 struct timeval *tv;
839{
840 return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz);
841}
842
843
844int
845svr4_sys_times(td, uap)
846 struct thread *td;
847 struct svr4_sys_times_args *uap;
848{
849 int error, *retval = td->td_retval;
850 struct tms tms;
851 struct timeval t;
852 struct rusage *ru;
853 struct rusage r;
854 struct getrusage_args ga;
855
856 caddr_t sg = stackgap_init();
857 ru = stackgap_alloc(&sg, sizeof(struct rusage));
858
859 SCARG(&ga, who) = RUSAGE_SELF;
860 SCARG(&ga, rusage) = ru;
861
862 error = getrusage(td, &ga);
863 if (error)
864 return error;
865
866 if ((error = copyin(ru, &r, sizeof r)) != 0)
867 return error;
868
869 tms.tms_utime = timeval_to_clock_t(&r.ru_utime);
870 tms.tms_stime = timeval_to_clock_t(&r.ru_stime);
871
872 SCARG(&ga, who) = RUSAGE_CHILDREN;
873 error = getrusage(td, &ga);
874 if (error)
875 return error;
876
877 if ((error = copyin(ru, &r, sizeof r)) != 0)
878 return error;
879
880 tms.tms_cutime = timeval_to_clock_t(&r.ru_utime);
881 tms.tms_cstime = timeval_to_clock_t(&r.ru_stime);
882
883 microtime(&t);
884 *retval = timeval_to_clock_t(&t);
885
886 return copyout(&tms, SCARG(uap, tp), sizeof(tms));
887}
888
889
890int
891svr4_sys_ulimit(td, uap)
892 struct thread *td;
893 struct svr4_sys_ulimit_args *uap;
894{
895 int *retval = td->td_retval;
896
897 switch (SCARG(uap, cmd)) {
898 case SVR4_GFILLIM:
899 /* For p_rlimit below. */
900 mtx_assert(&Giant, MA_OWNED);
901 *retval = td->td_proc->p_rlimit[RLIMIT_FSIZE].rlim_cur / 512;
902 if (*retval == -1)
903 *retval = 0x7fffffff;
904 return 0;
905
906 case SVR4_SFILLIM:
907 {
908 int error;
909 struct __setrlimit_args srl;
910 struct rlimit krl;
911 caddr_t sg = stackgap_init();
912 struct rlimit *url = (struct rlimit *)
913 stackgap_alloc(&sg, sizeof *url);
914
915 krl.rlim_cur = SCARG(uap, newlimit) * 512;
916 mtx_assert(&Giant, MA_OWNED);
917 krl.rlim_max = td->td_proc->p_rlimit[RLIMIT_FSIZE].rlim_max;
918
919 error = copyout(&krl, url, sizeof(*url));
920 if (error)
921 return error;
922
923 SCARG(&srl, which) = RLIMIT_FSIZE;
924 SCARG(&srl, rlp) = url;
925
926 error = setrlimit(td, &srl);
927 if (error)
928 return error;
929
930 mtx_assert(&Giant, MA_OWNED);
931 *retval = td->td_proc->p_rlimit[RLIMIT_FSIZE].rlim_cur;
932 if (*retval == -1)
933 *retval = 0x7fffffff;
934 return 0;
935 }
936
937 case SVR4_GMEMLIM:
938 {
939 struct vmspace *vm = td->td_proc->p_vmspace;
940 register_t r;
941
942 mtx_assert(&Giant, MA_OWNED);
943 r = td->td_proc->p_rlimit[RLIMIT_DATA].rlim_cur;
944
945 if (r == -1)
946 r = 0x7fffffff;
947 r += (long) vm->vm_daddr;
948 if (r < 0)
949 r = 0x7fffffff;
950 *retval = r;
951 return 0;
952 }
953
954 case SVR4_GDESLIM:
955 mtx_assert(&Giant, MA_OWNED);
956 *retval = td->td_proc->p_rlimit[RLIMIT_NOFILE].rlim_cur;
957 if (*retval == -1)
958 *retval = 0x7fffffff;
959 return 0;
960
961 default:
962 return EINVAL;
963 }
964}
965
966static struct proc *
967svr4_pfind(pid)
968 pid_t pid;
969{
970 struct proc *p;
971
972 /* look in the live processes */
973 if ((p = pfind(pid)) == NULL)
974 /* look in the zombies */
975 p = zpfind(pid);
976
977 return p;
978}
979
980
981int
982svr4_sys_pgrpsys(td, uap)
983 struct thread *td;
984 struct svr4_sys_pgrpsys_args *uap;
985{
986 int *retval = td->td_retval;
987 struct proc *p = td->td_proc;
988
989 switch (SCARG(uap, cmd)) {
990 case 1: /* setpgrp() */
991 /*
992 * SVR4 setpgrp() (which takes no arguments) has the
993 * semantics that the session ID is also created anew, so
994 * in almost every sense, setpgrp() is identical to
995 * setsid() for SVR4. (Under BSD, the difference is that
996 * a setpgid(0,0) will not create a new session.)
997 */
998 setsid(td, NULL);
999 /*FALLTHROUGH*/
1000
1001 case 0: /* getpgrp() */
1002 *retval = p->p_pgrp->pg_id;
1003 return 0;
1004
1005 case 2: /* getsid(pid) */
1006 if (SCARG(uap, pid) != 0 &&
1007 (p = svr4_pfind(SCARG(uap, pid))) == NULL)
1008 return ESRCH;
1009 /*
1010 * This has already been initialized to the pid of
1011 * the session leader.
1012 */
1013 *retval = (register_t) p->p_session->s_leader->p_pid;
1014 PROC_UNLOCK(p);
1015 return 0;
1016
1017 case 3: /* setsid() */
1018 return setsid(td, NULL);
1019
1020 case 4: /* getpgid(pid) */
1021
1022 if (SCARG(uap, pid) != 0 &&
1023 (p = svr4_pfind(SCARG(uap, pid))) == NULL)
1024 return ESRCH;
1025
1026 *retval = (int) p->p_pgrp->pg_id;
1027 PROC_UNLOCK(p);
1028 return 0;
1029
1030 case 5: /* setpgid(pid, pgid); */
1031 {
1032 struct setpgid_args sa;
1033
1034 SCARG(&sa, pid) = SCARG(uap, pid);
1035 SCARG(&sa, pgid) = SCARG(uap, pgid);
1036 return setpgid(td, &sa);
1037 }
1038
1039 default:
1040 return EINVAL;
1041 }
1042}
1043
1044#define syscallarg(x) union { x datum; register_t pad; }
1045
1046struct svr4_hrtcntl_args {
1047 int cmd;
1048 int fun;
1049 int clk;
1050 svr4_hrt_interval_t * iv;
1051 svr4_hrt_time_t * ti;
1052};
1053
1054
1055static int
1056svr4_hrtcntl(td, uap, retval)
1057 struct thread *td;
1058 struct svr4_hrtcntl_args *uap;
1059 register_t *retval;
1060{
1061 switch (SCARG(uap, fun)) {
1062 case SVR4_HRT_CNTL_RES:
1063 DPRINTF(("htrcntl(RES)\n"));
1064 *retval = SVR4_HRT_USEC;
1065 return 0;
1066
1067 case SVR4_HRT_CNTL_TOFD:
1068 DPRINTF(("htrcntl(TOFD)\n"));
1069 {
1070 struct timeval tv;
1071 svr4_hrt_time_t t;
1072 if (SCARG(uap, clk) != SVR4_HRT_CLK_STD) {
1073 DPRINTF(("clk == %d\n", SCARG(uap, clk)));
1074 return EINVAL;
1075 }
1076 if (SCARG(uap, ti) == NULL) {
1077 DPRINTF(("ti NULL\n"));
1078 return EINVAL;
1079 }
1080 microtime(&tv);
1081 t.h_sec = tv.tv_sec;
1082 t.h_rem = tv.tv_usec;
1083 t.h_res = SVR4_HRT_USEC;
1084 return copyout(&t, SCARG(uap, ti), sizeof(t));
1085 }
1086
1087 case SVR4_HRT_CNTL_START:
1088 DPRINTF(("htrcntl(START)\n"));
1089 return ENOSYS;
1090
1091 case SVR4_HRT_CNTL_GET:
1092 DPRINTF(("htrcntl(GET)\n"));
1093 return ENOSYS;
1094 default:
1095 DPRINTF(("Bad htrcntl command %d\n", SCARG(uap, fun)));
1096 return ENOSYS;
1097 }
1098}
1099
1100
1101int
1102svr4_sys_hrtsys(td, uap)
1103 struct thread *td;
1104 struct svr4_sys_hrtsys_args *uap;
1105{
1106 int *retval = td->td_retval;
1107
1108 switch (SCARG(uap, cmd)) {
1109 case SVR4_HRT_CNTL:
1110 return svr4_hrtcntl(td, (struct svr4_hrtcntl_args *) uap,
1111 retval);
1112
1113 case SVR4_HRT_ALRM:
1114 DPRINTF(("hrtalarm\n"));
1115 return ENOSYS;
1116
1117 case SVR4_HRT_SLP:
1118 DPRINTF(("hrtsleep\n"));
1119 return ENOSYS;
1120
1121 case SVR4_HRT_CAN:
1122 DPRINTF(("hrtcancel\n"));
1123 return ENOSYS;
1124
1125 default:
1126 DPRINTF(("Bad hrtsys command %d\n", SCARG(uap, cmd)));
1127 return EINVAL;
1128 }
1129}
1130
1131
1132static int
1133svr4_setinfo(p, st, s)
1134 struct proc *p;
1135 int st;
1136 svr4_siginfo_t *s;
1137{
1138 svr4_siginfo_t i;
1139 int sig;
1140
1141 memset(&i, 0, sizeof(i));
1142
1143 i.si_signo = SVR4_SIGCHLD;
1144 i.si_errno = 0; /* XXX? */
1145
1146 if (p) {
1147 i.si_pid = p->p_pid;
1148 mtx_lock_spin(&sched_lock);
1149 if (p->p_stat == SZOMB) {
1150 i.si_stime = p->p_ru->ru_stime.tv_sec;
1151 i.si_utime = p->p_ru->ru_utime.tv_sec;
1152 }
1153 else {
1154 i.si_stime = p->p_stats->p_ru.ru_stime.tv_sec;
1155 i.si_utime = p->p_stats->p_ru.ru_utime.tv_sec;
1156 }
1157 mtx_unlock_spin(&sched_lock);
1158 }
1159
1160 if (WIFEXITED(st)) {
1161 i.si_status = WEXITSTATUS(st);
1162 i.si_code = SVR4_CLD_EXITED;
1163 } else if (WIFSTOPPED(st)) {
1164 sig = WSTOPSIG(st);
1165 if (sig >= 0 && sig < NSIG)
1166 i.si_status = SVR4_BSD2SVR4_SIG(sig);
1167
1168 if (i.si_status == SVR4_SIGCONT)
1169 i.si_code = SVR4_CLD_CONTINUED;
1170 else
1171 i.si_code = SVR4_CLD_STOPPED;
1172 } else {
1173 sig = WTERMSIG(st);
1174 if (sig >= 0 && sig < NSIG)
1175 i.si_status = SVR4_BSD2SVR4_SIG(sig);
1176
1177 if (WCOREDUMP(st))
1178 i.si_code = SVR4_CLD_DUMPED;
1179 else
1180 i.si_code = SVR4_CLD_KILLED;
1181 }
1182
1183 DPRINTF(("siginfo [pid %ld signo %d code %d errno %d status %d]\n",
1184 i.si_pid, i.si_signo, i.si_code, i.si_errno, i.si_status));
1185
1186 return copyout(&i, s, sizeof(i));
1187}
1188
1189
1190int
1191svr4_sys_waitsys(td, uap)
1192 struct thread *td;
1193 struct svr4_sys_waitsys_args *uap;
1194{
1195 int nfound;
1196 int error, *retval = td->td_retval;
1197 struct proc *q, *t;
1198
1199
1200 switch (SCARG(uap, grp)) {
1201 case SVR4_P_PID:
1202 break;
1203
1204 case SVR4_P_PGID:
1205 SCARG(uap, id) = -td->td_proc->p_pgid;
1206 break;
1207
1208 case SVR4_P_ALL:
1209 SCARG(uap, id) = WAIT_ANY;
1210 break;
1211
1212 default:
1213 return EINVAL;
1214 }
1215
1216 DPRINTF(("waitsys(%d, %d, %p, %x)\n",
1217 SCARG(uap, grp), SCARG(uap, id),
1218 SCARG(uap, info), SCARG(uap, options)));
1219
1220loop:
1221 nfound = 0;
1222 sx_slock(&proctree_lock);
1223 LIST_FOREACH(q, &td->td_proc->p_children, p_sibling) {
1224 if (SCARG(uap, id) != WAIT_ANY &&
1225 q->p_pid != SCARG(uap, id) &&
1226 q->p_pgid != -SCARG(uap, id)) {
1227 DPRINTF(("pid %d pgid %d != %d\n", q->p_pid,
1228 q->p_pgid, SCARG(uap, id)));
1229 continue;
1230 }
1231 nfound++;
1232 PROC_LOCK(q);
1233 mtx_lock_spin(&sched_lock);
1234 if (q->p_stat == SZOMB &&
1235 ((SCARG(uap, options) & (SVR4_WEXITED|SVR4_WTRAPPED)))) {
1236 mtx_unlock_spin(&sched_lock);
1237 PROC_UNLOCK(q);
1238 sx_sunlock(&proctree_lock);
1239 *retval = 0;
1240 DPRINTF(("found %d\n", q->p_pid));
1241 error = svr4_setinfo(q, q->p_xstat, SCARG(uap, info));
1242 if (error != 0)
1243 return error;
1244
1245
1246 if ((SCARG(uap, options) & SVR4_WNOWAIT)) {
1247 DPRINTF(("Don't wait\n"));
1248 return 0;
1249 }
1250
1251 /*
1252 * If we got the child via ptrace(2) or procfs, and
1253 * the parent is different (meaning the process was
1254 * attached, rather than run as a child), then we need
1255 * to give it back to the old parent, and send the
1256 * parent a SIGCHLD. The rest of the cleanup will be
1257 * done when the old parent waits on the child.
1258 */
1259 sx_xlock(&proctree_lock);
1260 PROC_LOCK(q);
1261 if (q->p_flag & P_TRACED) {
1262 if (q->p_oppid != q->p_pptr->p_pid) {
1263 PROC_UNLOCK(q);
1264 t = pfind(q->p_oppid);
1265 PROC_LOCK(q);
1266 proc_reparent(q, t ? t : initproc);
1267 q->p_oppid = 0;
1268 q->p_flag &= ~(P_TRACED | P_WAITED);
1269 PROC_UNLOCK(q);
1270 psignal(t, SIGCHLD);
1271 wakeup(t);
1272 PROC_UNLOCK(t);
1273 sx_xunlock(&proctree_lock);
1274 return 0;
1275 }
1276 }
1277 PROC_UNLOCK(q);
1278 sx_xunlock(&proctree_lock);
1279 q->p_xstat = 0;
1280 ruadd(&td->td_proc->p_stats->p_cru, q->p_ru);
1281 FREE(q->p_ru, M_ZOMBIE);
1282 q->p_ru = 0;
1283
1284 /*
1285 * Decrement the count of procs running with this uid.
1286 */
1287 (void)chgproccnt(q->p_ucred->cr_ruidinfo, -1, 0);
1288
1289 /*
1290 * Release reference to text vnode.
1291 */
1292 if (q->p_textvp)
1293 vrele(q->p_textvp);
1294
1295 /*
1296 * Free up credentials.
1297 */
1298 crfree(q->p_ucred);
1299 q->p_ucred = NULL;
1300
1301 /*
1302 * Remove unused arguments
1303 */
1304 if (q->p_args && --q->p_args->ar_ref == 0)
1305 FREE(q->p_args, M_PARGS);
1306 PROC_UNLOCK(q);
1307
1308 /*
1309 * Finally finished with old proc entry.
1310 * Unlink it from its process group and free it.
1311 */
1312 leavepgrp(q);
1313
1314 sx_xlock(&allproc_lock);
1315 LIST_REMOVE(q, p_list); /* off zombproc */
1316 sx_xunlock(&allproc_lock);
1317
1318 sx_xlock(&proctree_lock);
1319 LIST_REMOVE(q, p_sibling);
1320 sx_xunlock(&proctree_lock);
1321
1322 PROC_LOCK(q);
1323 if (--q->p_procsig->ps_refcnt == 0) {
1324 if (q->p_sigacts != &q->p_uarea->u_sigacts)
1325 FREE(q->p_sigacts, M_SUBPROC);
1326 FREE(q->p_procsig, M_SUBPROC);
1327 q->p_procsig = NULL;
1328 }
1329 PROC_UNLOCK(q);
1330
1331 /*
1332 * Give machine-dependent layer a chance
1333 * to free anything that cpu_exit couldn't
1334 * release while still running in process context.
1335 */
1336 cpu_wait(q);
1337#if defined(__NetBSD__)
1338 pool_put(&proc_pool, q);
1339#endif
1340#ifdef __FreeBSD__
1341 mtx_destroy(&q->p_mtx);
1342 zfree(proc_zone, q);
1343#endif
1344 nprocs--;
1345 return 0;
1346 }
1347 if (q->p_stat == SSTOP && (q->p_flag & P_WAITED) == 0 &&
1348 (q->p_flag & P_TRACED ||
1349 (SCARG(uap, options) & (SVR4_WSTOPPED|SVR4_WCONTINUED)))) {
1350 mtx_unlock_spin(&sched_lock);
1351 DPRINTF(("jobcontrol %d\n", q->p_pid));
1352 if (((SCARG(uap, options) & SVR4_WNOWAIT)) == 0)
1353 q->p_flag |= P_WAITED;
1354 PROC_UNLOCK(q);
1355 *retval = 0;
1356 return svr4_setinfo(q, W_STOPCODE(q->p_xstat),
1357 SCARG(uap, info));
1358 }
1359 mtx_unlock_spin(&sched_lock);
1360 PROC_UNLOCK(q);
1361 }
1362
1363 if (nfound == 0)
1364 return ECHILD;
1365
1366 if (SCARG(uap, options) & SVR4_WNOHANG) {
1367 *retval = 0;
1368 if ((error = svr4_setinfo(NULL, 0, SCARG(uap, info))) != 0)
1369 return error;
1370 return 0;
1371 }
1372
1373 if ((error = tsleep((caddr_t)td->td_proc, PWAIT | PCATCH, "svr4_wait", 0)) != 0)
1374 return error;
1375 goto loop;
1376}
1377
1378
1379static void
1380bsd_statfs_to_svr4_statvfs(bfs, sfs)
1381 const struct statfs *bfs;
1382 struct svr4_statvfs *sfs;
1383{
1384 sfs->f_bsize = bfs->f_iosize; /* XXX */
1385 sfs->f_frsize = bfs->f_bsize;
1386 sfs->f_blocks = bfs->f_blocks;
1387 sfs->f_bfree = bfs->f_bfree;
1388 sfs->f_bavail = bfs->f_bavail;
1389 sfs->f_files = bfs->f_files;
1390 sfs->f_ffree = bfs->f_ffree;
1391 sfs->f_favail = bfs->f_ffree;
1392 sfs->f_fsid = bfs->f_fsid.val[0];
1393 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype));
1394 sfs->f_flag = 0;
1395 if (bfs->f_flags & MNT_RDONLY)
1396 sfs->f_flag |= SVR4_ST_RDONLY;
1397 if (bfs->f_flags & MNT_NOSUID)
1398 sfs->f_flag |= SVR4_ST_NOSUID;
1399 sfs->f_namemax = MAXNAMLEN;
1400 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */
1401 memset(sfs->f_filler, 0, sizeof(sfs->f_filler));
1402}
1403
1404
1405static void
1406bsd_statfs_to_svr4_statvfs64(bfs, sfs)
1407 const struct statfs *bfs;
1408 struct svr4_statvfs64 *sfs;
1409{
1410 sfs->f_bsize = bfs->f_iosize; /* XXX */
1411 sfs->f_frsize = bfs->f_bsize;
1412 sfs->f_blocks = bfs->f_blocks;
1413 sfs->f_bfree = bfs->f_bfree;
1414 sfs->f_bavail = bfs->f_bavail;
1415 sfs->f_files = bfs->f_files;
1416 sfs->f_ffree = bfs->f_ffree;
1417 sfs->f_favail = bfs->f_ffree;
1418 sfs->f_fsid = bfs->f_fsid.val[0];
1419 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype));
1420 sfs->f_flag = 0;
1421 if (bfs->f_flags & MNT_RDONLY)
1422 sfs->f_flag |= SVR4_ST_RDONLY;
1423 if (bfs->f_flags & MNT_NOSUID)
1424 sfs->f_flag |= SVR4_ST_NOSUID;
1425 sfs->f_namemax = MAXNAMLEN;
1426 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */
1427 memset(sfs->f_filler, 0, sizeof(sfs->f_filler));
1428}
1429
1430
1431int
1432svr4_sys_statvfs(td, uap)
1433 struct thread *td;
1434 struct svr4_sys_statvfs_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_statvfs sfs;
1441 int error;
1442
1443 CHECKALTEXIST(td, &sg, SCARG(uap, path));
1444 SCARG(&fs_args, path) = SCARG(uap, path);
1445 SCARG(&fs_args, buf) = fs;
1446
1447 if ((error = statfs(td, &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_statvfs(&bfs, &sfs);
1454
1455 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1456}
1457
1458
1459int
1460svr4_sys_fstatvfs(td, uap)
1461 struct thread *td;
1462 struct svr4_sys_fstatvfs_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_statvfs sfs;
1469 int error;
1470
1471 SCARG(&fs_args, fd) = SCARG(uap, fd);
1472 SCARG(&fs_args, buf) = fs;
1473
1474 if ((error = fstatfs(td, &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_statvfs(&bfs, &sfs);
1481
1482 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1483}
1484
1485
1486int
1487svr4_sys_statvfs64(td, uap)
1488 struct thread *td;
1489 struct svr4_sys_statvfs64_args *uap;
1490{
1491 struct statfs_args fs_args;
1492 caddr_t sg = stackgap_init();
1493 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1494 struct statfs bfs;
1495 struct svr4_statvfs64 sfs;
1496 int error;
1497
1498 CHECKALTEXIST(td, &sg, SCARG(uap, path));
1499 SCARG(&fs_args, path) = SCARG(uap, path);
1500 SCARG(&fs_args, buf) = fs;
1501
1502 if ((error = statfs(td, &fs_args)) != 0)
1503 return error;
1504
1505 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1506 return error;
1507
1508 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs);
1509
1510 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1511}
1512
1513
1514int
1515svr4_sys_fstatvfs64(td, uap)
1516 struct thread *td;
1517 struct svr4_sys_fstatvfs64_args *uap;
1518{
1519 struct fstatfs_args fs_args;
1520 caddr_t sg = stackgap_init();
1521 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1522 struct statfs bfs;
1523 struct svr4_statvfs64 sfs;
1524 int error;
1525
1526 SCARG(&fs_args, fd) = SCARG(uap, fd);
1527 SCARG(&fs_args, buf) = fs;
1528
1529 if ((error = fstatfs(td, &fs_args)) != 0)
1530 return error;
1531
1532 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1533 return error;
1534
1535 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs);
1536
1537 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1538}
1539
1540int
1541svr4_sys_alarm(td, uap)
1542 struct thread *td;
1543 struct svr4_sys_alarm_args *uap;
1544{
1545 int error;
1546 struct itimerval *itp, *oitp;
1547 struct setitimer_args sa;
1548 caddr_t sg = stackgap_init();
1549
1550 itp = stackgap_alloc(&sg, sizeof(*itp));
1551 oitp = stackgap_alloc(&sg, sizeof(*oitp));
1552 timevalclear(&itp->it_interval);
1553 itp->it_value.tv_sec = SCARG(uap, sec);
1554 itp->it_value.tv_usec = 0;
1555
1556 SCARG(&sa, which) = ITIMER_REAL;
1557 SCARG(&sa, itv) = itp;
1558 SCARG(&sa, oitv) = oitp;
1559 error = setitimer(td, &sa);
1560 if (error)
1561 return error;
1562 if (oitp->it_value.tv_usec)
1563 oitp->it_value.tv_sec++;
1564 td->td_retval[0] = oitp->it_value.tv_sec;
1565 return 0;
1566
1567}
1568
1569int
1570svr4_sys_gettimeofday(td, uap)
1571 struct thread *td;
1572 struct svr4_sys_gettimeofday_args *uap;
1573{
1574 if (SCARG(uap, tp)) {
1575 struct timeval atv;
1576
1577 microtime(&atv);
1578 return copyout(&atv, SCARG(uap, tp), sizeof (atv));
1579 }
1580
1581 return 0;
1582}
1583
1584int
1585svr4_sys_facl(td, uap)
1586 struct thread *td;
1587 struct svr4_sys_facl_args *uap;
1588{
1589 int *retval;
1590
1591 retval = td->td_retval;
1592 *retval = 0;
1593
1594 switch (SCARG(uap, cmd)) {
1595 case SVR4_SYS_SETACL:
1596 /* We don't support acls on any filesystem */
1597 return ENOSYS;
1598
1599 case SVR4_SYS_GETACL:
1600 return copyout(retval, &SCARG(uap, num),
1601 sizeof(SCARG(uap, num)));
1602
1603 case SVR4_SYS_GETACLCNT:
1604 return 0;
1605
1606 default:
1607 return EINVAL;
1608 }
1609}
1610
1611
1612int
1613svr4_sys_acl(td, uap)
1614 struct thread *td;
1615 struct svr4_sys_acl_args *uap;
1616{
1617 /* XXX: for now the same */
1618 return svr4_sys_facl(td, (struct svr4_sys_facl_args *)uap);
1619}
1620
1621int
1622svr4_sys_auditsys(td, uap)
1623 struct thread *td;
1624 struct svr4_sys_auditsys_args *uap;
1625{
1626 /*
1627 * XXX: Big brother is *not* watching.
1628 */
1629 return 0;
1630}
1631
1632int
1633svr4_sys_memcntl(td, uap)
1634 struct thread *td;
1635 struct svr4_sys_memcntl_args *uap;
1636{
1637 switch (SCARG(uap, cmd)) {
1638 case SVR4_MC_SYNC:
1639 {
1640 struct msync_args msa;
1641
1642 SCARG(&msa, addr) = SCARG(uap, addr);
1643 SCARG(&msa, len) = SCARG(uap, len);
1644 SCARG(&msa, flags) = (int)SCARG(uap, arg);
1645
1646 return msync(td, &msa);
1647 }
1648 case SVR4_MC_ADVISE:
1649 {
1650 struct madvise_args maa;
1651
1652 SCARG(&maa, addr) = SCARG(uap, addr);
1653 SCARG(&maa, len) = SCARG(uap, len);
1654 SCARG(&maa, behav) = (int)SCARG(uap, arg);
1655
1656 return madvise(td, &maa);
1657 }
1658 case SVR4_MC_LOCK:
1659 case SVR4_MC_UNLOCK:
1660 case SVR4_MC_LOCKAS:
1661 case SVR4_MC_UNLOCKAS:
1662 return EOPNOTSUPP;
1663 default:
1664 return ENOSYS;
1665 }
1666}
1667
1668
1669int
1670svr4_sys_nice(td, uap)
1671 struct thread *td;
1672 struct svr4_sys_nice_args *uap;
1673{
1674 struct setpriority_args ap;
1675 int error;
1676
1677 SCARG(&ap, which) = PRIO_PROCESS;
1678 SCARG(&ap, who) = 0;
1679 SCARG(&ap, prio) = SCARG(uap, prio);
1680
1681 if ((error = setpriority(td, &ap)) != 0)
1682 return error;
1683
1684 /* the cast is stupid, but the structures are the same */
1685 if ((error = getpriority(td, (struct getpriority_args *)&ap)) != 0)
1686 return error;
1687
1688 return 0;
1689}
1690
1691int
1692svr4_sys_resolvepath(td, uap)
1693 struct thread *td;
1694 struct svr4_sys_resolvepath_args *uap;
1695{
1696 struct nameidata nd;
1697 int error, *retval = td->td_retval;
1698
1699 NDINIT(&nd, LOOKUP, NOFOLLOW | SAVENAME, UIO_USERSPACE,
1700 SCARG(uap, path), td);
1701
1702 if ((error = namei(&nd)) != 0)
1703 return error;
1704
1705 if ((error = copyout(nd.ni_cnd.cn_pnbuf, SCARG(uap, buf),
1706 SCARG(uap, bufsiz))) != 0)
1707 goto bad;
1708
1709 *retval = strlen(nd.ni_cnd.cn_pnbuf) < SCARG(uap, bufsiz) ?
1710 strlen(nd.ni_cnd.cn_pnbuf) + 1 : SCARG(uap, bufsiz);
1711bad:
1712 NDFREE(&nd, NDF_ONLY_PNBUF);
1713 vput(nd.ni_vp);
1714 return error;
1715}
| 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(td, &mm);
585}
586
587
588int
589svr4_sys_fchroot(td, uap)
590 struct thread *td;
591 struct svr4_sys_fchroot_args *uap;
592{
593 struct filedesc *fdp = td->td_proc->p_fd;
594 struct vnode *vp;
595 struct file *fp;
596 int error;
597
598 if ((error = suser_td(td)) != 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, td);
604 if (vp->v_type != VDIR)
605 error = ENOTDIR;
606 else
607 error = VOP_ACCESS(vp, VEXEC, td->td_proc->p_ucred, td);
608 VOP_UNLOCK(vp, 0, td);
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(td, retval, path, mode, dev)
621 struct thread *td;
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(td, &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(td, &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(td, &ap);
642 }
643}
644
645
646int
647svr4_sys_mknod(td, uap)
648 register struct thread *td;
649 struct svr4_sys_mknod_args *uap;
650{
651 int *retval = td->td_retval;
652 return svr4_mknod(td, 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(td, uap)
660 struct thread *td;
661 struct svr4_sys_xmknod_args *uap;
662{
663 int *retval = td->td_retval;
664 return svr4_mknod(td, 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(td, uap)
672 struct thread *td;
673 struct svr4_sys_vhangup_args *uap;
674{
675 return 0;
676}
677
678
679int
680svr4_sys_sysconfig(td, uap)
681 struct thread *td;
682 struct svr4_sys_sysconfig_args *uap;
683{
684 int *retval;
685
686 retval = &(td->td_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(td, uap)
783 struct thread *td;
784 struct svr4_sys_break_args *uap;
785{
786 struct vmspace *vm = td->td_proc->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 /* For p_rlimit. */
794 mtx_assert(&Giant, MA_OWNED);
795 if (new > base) {
796 if ((new - base) > (unsigned) td->td_proc->p_rlimit[RLIMIT_DATA].rlim_cur) {
797 return ENOMEM;
798 }
799 if (new >= VM_MAXUSER_ADDRESS) {
800 return (ENOMEM);
801 }
802 } else if (new < base) {
803 /*
804 * This is simply an invalid value. If someone wants to
805 * do fancy address space manipulations, mmap and munmap
806 * can do most of what the user would want.
807 */
808 return EINVAL;
809 }
810
811 old = base + ctob(vm->vm_dsize);
812
813 if (new > old) {
814 vm_size_t diff;
815 if (swap_pager_full) {
816 return (ENOMEM);
817 }
818 diff = new - old;
819 rv = vm_map_find(&vm->vm_map, NULL, 0, &old, diff, FALSE,
820 VM_PROT_ALL, VM_PROT_ALL, 0);
821 if (rv != KERN_SUCCESS) {
822 return (ENOMEM);
823 }
824 vm->vm_dsize += btoc(diff);
825 } else if (new < old) {
826 rv = vm_map_remove(&vm->vm_map, new, old);
827 if (rv != KERN_SUCCESS) {
828 return (ENOMEM);
829 }
830 vm->vm_dsize -= btoc(old - new);
831 }
832
833 return (0);
834}
835
836static __inline clock_t
837timeval_to_clock_t(tv)
838 struct timeval *tv;
839{
840 return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz);
841}
842
843
844int
845svr4_sys_times(td, uap)
846 struct thread *td;
847 struct svr4_sys_times_args *uap;
848{
849 int error, *retval = td->td_retval;
850 struct tms tms;
851 struct timeval t;
852 struct rusage *ru;
853 struct rusage r;
854 struct getrusage_args ga;
855
856 caddr_t sg = stackgap_init();
857 ru = stackgap_alloc(&sg, sizeof(struct rusage));
858
859 SCARG(&ga, who) = RUSAGE_SELF;
860 SCARG(&ga, rusage) = ru;
861
862 error = getrusage(td, &ga);
863 if (error)
864 return error;
865
866 if ((error = copyin(ru, &r, sizeof r)) != 0)
867 return error;
868
869 tms.tms_utime = timeval_to_clock_t(&r.ru_utime);
870 tms.tms_stime = timeval_to_clock_t(&r.ru_stime);
871
872 SCARG(&ga, who) = RUSAGE_CHILDREN;
873 error = getrusage(td, &ga);
874 if (error)
875 return error;
876
877 if ((error = copyin(ru, &r, sizeof r)) != 0)
878 return error;
879
880 tms.tms_cutime = timeval_to_clock_t(&r.ru_utime);
881 tms.tms_cstime = timeval_to_clock_t(&r.ru_stime);
882
883 microtime(&t);
884 *retval = timeval_to_clock_t(&t);
885
886 return copyout(&tms, SCARG(uap, tp), sizeof(tms));
887}
888
889
890int
891svr4_sys_ulimit(td, uap)
892 struct thread *td;
893 struct svr4_sys_ulimit_args *uap;
894{
895 int *retval = td->td_retval;
896
897 switch (SCARG(uap, cmd)) {
898 case SVR4_GFILLIM:
899 /* For p_rlimit below. */
900 mtx_assert(&Giant, MA_OWNED);
901 *retval = td->td_proc->p_rlimit[RLIMIT_FSIZE].rlim_cur / 512;
902 if (*retval == -1)
903 *retval = 0x7fffffff;
904 return 0;
905
906 case SVR4_SFILLIM:
907 {
908 int error;
909 struct __setrlimit_args srl;
910 struct rlimit krl;
911 caddr_t sg = stackgap_init();
912 struct rlimit *url = (struct rlimit *)
913 stackgap_alloc(&sg, sizeof *url);
914
915 krl.rlim_cur = SCARG(uap, newlimit) * 512;
916 mtx_assert(&Giant, MA_OWNED);
917 krl.rlim_max = td->td_proc->p_rlimit[RLIMIT_FSIZE].rlim_max;
918
919 error = copyout(&krl, url, sizeof(*url));
920 if (error)
921 return error;
922
923 SCARG(&srl, which) = RLIMIT_FSIZE;
924 SCARG(&srl, rlp) = url;
925
926 error = setrlimit(td, &srl);
927 if (error)
928 return error;
929
930 mtx_assert(&Giant, MA_OWNED);
931 *retval = td->td_proc->p_rlimit[RLIMIT_FSIZE].rlim_cur;
932 if (*retval == -1)
933 *retval = 0x7fffffff;
934 return 0;
935 }
936
937 case SVR4_GMEMLIM:
938 {
939 struct vmspace *vm = td->td_proc->p_vmspace;
940 register_t r;
941
942 mtx_assert(&Giant, MA_OWNED);
943 r = td->td_proc->p_rlimit[RLIMIT_DATA].rlim_cur;
944
945 if (r == -1)
946 r = 0x7fffffff;
947 r += (long) vm->vm_daddr;
948 if (r < 0)
949 r = 0x7fffffff;
950 *retval = r;
951 return 0;
952 }
953
954 case SVR4_GDESLIM:
955 mtx_assert(&Giant, MA_OWNED);
956 *retval = td->td_proc->p_rlimit[RLIMIT_NOFILE].rlim_cur;
957 if (*retval == -1)
958 *retval = 0x7fffffff;
959 return 0;
960
961 default:
962 return EINVAL;
963 }
964}
965
966static struct proc *
967svr4_pfind(pid)
968 pid_t pid;
969{
970 struct proc *p;
971
972 /* look in the live processes */
973 if ((p = pfind(pid)) == NULL)
974 /* look in the zombies */
975 p = zpfind(pid);
976
977 return p;
978}
979
980
981int
982svr4_sys_pgrpsys(td, uap)
983 struct thread *td;
984 struct svr4_sys_pgrpsys_args *uap;
985{
986 int *retval = td->td_retval;
987 struct proc *p = td->td_proc;
988
989 switch (SCARG(uap, cmd)) {
990 case 1: /* setpgrp() */
991 /*
992 * SVR4 setpgrp() (which takes no arguments) has the
993 * semantics that the session ID is also created anew, so
994 * in almost every sense, setpgrp() is identical to
995 * setsid() for SVR4. (Under BSD, the difference is that
996 * a setpgid(0,0) will not create a new session.)
997 */
998 setsid(td, NULL);
999 /*FALLTHROUGH*/
1000
1001 case 0: /* getpgrp() */
1002 *retval = p->p_pgrp->pg_id;
1003 return 0;
1004
1005 case 2: /* getsid(pid) */
1006 if (SCARG(uap, pid) != 0 &&
1007 (p = svr4_pfind(SCARG(uap, pid))) == NULL)
1008 return ESRCH;
1009 /*
1010 * This has already been initialized to the pid of
1011 * the session leader.
1012 */
1013 *retval = (register_t) p->p_session->s_leader->p_pid;
1014 PROC_UNLOCK(p);
1015 return 0;
1016
1017 case 3: /* setsid() */
1018 return setsid(td, NULL);
1019
1020 case 4: /* getpgid(pid) */
1021
1022 if (SCARG(uap, pid) != 0 &&
1023 (p = svr4_pfind(SCARG(uap, pid))) == NULL)
1024 return ESRCH;
1025
1026 *retval = (int) p->p_pgrp->pg_id;
1027 PROC_UNLOCK(p);
1028 return 0;
1029
1030 case 5: /* setpgid(pid, pgid); */
1031 {
1032 struct setpgid_args sa;
1033
1034 SCARG(&sa, pid) = SCARG(uap, pid);
1035 SCARG(&sa, pgid) = SCARG(uap, pgid);
1036 return setpgid(td, &sa);
1037 }
1038
1039 default:
1040 return EINVAL;
1041 }
1042}
1043
1044#define syscallarg(x) union { x datum; register_t pad; }
1045
1046struct svr4_hrtcntl_args {
1047 int cmd;
1048 int fun;
1049 int clk;
1050 svr4_hrt_interval_t * iv;
1051 svr4_hrt_time_t * ti;
1052};
1053
1054
1055static int
1056svr4_hrtcntl(td, uap, retval)
1057 struct thread *td;
1058 struct svr4_hrtcntl_args *uap;
1059 register_t *retval;
1060{
1061 switch (SCARG(uap, fun)) {
1062 case SVR4_HRT_CNTL_RES:
1063 DPRINTF(("htrcntl(RES)\n"));
1064 *retval = SVR4_HRT_USEC;
1065 return 0;
1066
1067 case SVR4_HRT_CNTL_TOFD:
1068 DPRINTF(("htrcntl(TOFD)\n"));
1069 {
1070 struct timeval tv;
1071 svr4_hrt_time_t t;
1072 if (SCARG(uap, clk) != SVR4_HRT_CLK_STD) {
1073 DPRINTF(("clk == %d\n", SCARG(uap, clk)));
1074 return EINVAL;
1075 }
1076 if (SCARG(uap, ti) == NULL) {
1077 DPRINTF(("ti NULL\n"));
1078 return EINVAL;
1079 }
1080 microtime(&tv);
1081 t.h_sec = tv.tv_sec;
1082 t.h_rem = tv.tv_usec;
1083 t.h_res = SVR4_HRT_USEC;
1084 return copyout(&t, SCARG(uap, ti), sizeof(t));
1085 }
1086
1087 case SVR4_HRT_CNTL_START:
1088 DPRINTF(("htrcntl(START)\n"));
1089 return ENOSYS;
1090
1091 case SVR4_HRT_CNTL_GET:
1092 DPRINTF(("htrcntl(GET)\n"));
1093 return ENOSYS;
1094 default:
1095 DPRINTF(("Bad htrcntl command %d\n", SCARG(uap, fun)));
1096 return ENOSYS;
1097 }
1098}
1099
1100
1101int
1102svr4_sys_hrtsys(td, uap)
1103 struct thread *td;
1104 struct svr4_sys_hrtsys_args *uap;
1105{
1106 int *retval = td->td_retval;
1107
1108 switch (SCARG(uap, cmd)) {
1109 case SVR4_HRT_CNTL:
1110 return svr4_hrtcntl(td, (struct svr4_hrtcntl_args *) uap,
1111 retval);
1112
1113 case SVR4_HRT_ALRM:
1114 DPRINTF(("hrtalarm\n"));
1115 return ENOSYS;
1116
1117 case SVR4_HRT_SLP:
1118 DPRINTF(("hrtsleep\n"));
1119 return ENOSYS;
1120
1121 case SVR4_HRT_CAN:
1122 DPRINTF(("hrtcancel\n"));
1123 return ENOSYS;
1124
1125 default:
1126 DPRINTF(("Bad hrtsys command %d\n", SCARG(uap, cmd)));
1127 return EINVAL;
1128 }
1129}
1130
1131
1132static int
1133svr4_setinfo(p, st, s)
1134 struct proc *p;
1135 int st;
1136 svr4_siginfo_t *s;
1137{
1138 svr4_siginfo_t i;
1139 int sig;
1140
1141 memset(&i, 0, sizeof(i));
1142
1143 i.si_signo = SVR4_SIGCHLD;
1144 i.si_errno = 0; /* XXX? */
1145
1146 if (p) {
1147 i.si_pid = p->p_pid;
1148 mtx_lock_spin(&sched_lock);
1149 if (p->p_stat == SZOMB) {
1150 i.si_stime = p->p_ru->ru_stime.tv_sec;
1151 i.si_utime = p->p_ru->ru_utime.tv_sec;
1152 }
1153 else {
1154 i.si_stime = p->p_stats->p_ru.ru_stime.tv_sec;
1155 i.si_utime = p->p_stats->p_ru.ru_utime.tv_sec;
1156 }
1157 mtx_unlock_spin(&sched_lock);
1158 }
1159
1160 if (WIFEXITED(st)) {
1161 i.si_status = WEXITSTATUS(st);
1162 i.si_code = SVR4_CLD_EXITED;
1163 } else if (WIFSTOPPED(st)) {
1164 sig = WSTOPSIG(st);
1165 if (sig >= 0 && sig < NSIG)
1166 i.si_status = SVR4_BSD2SVR4_SIG(sig);
1167
1168 if (i.si_status == SVR4_SIGCONT)
1169 i.si_code = SVR4_CLD_CONTINUED;
1170 else
1171 i.si_code = SVR4_CLD_STOPPED;
1172 } else {
1173 sig = WTERMSIG(st);
1174 if (sig >= 0 && sig < NSIG)
1175 i.si_status = SVR4_BSD2SVR4_SIG(sig);
1176
1177 if (WCOREDUMP(st))
1178 i.si_code = SVR4_CLD_DUMPED;
1179 else
1180 i.si_code = SVR4_CLD_KILLED;
1181 }
1182
1183 DPRINTF(("siginfo [pid %ld signo %d code %d errno %d status %d]\n",
1184 i.si_pid, i.si_signo, i.si_code, i.si_errno, i.si_status));
1185
1186 return copyout(&i, s, sizeof(i));
1187}
1188
1189
1190int
1191svr4_sys_waitsys(td, uap)
1192 struct thread *td;
1193 struct svr4_sys_waitsys_args *uap;
1194{
1195 int nfound;
1196 int error, *retval = td->td_retval;
1197 struct proc *q, *t;
1198
1199
1200 switch (SCARG(uap, grp)) {
1201 case SVR4_P_PID:
1202 break;
1203
1204 case SVR4_P_PGID:
1205 SCARG(uap, id) = -td->td_proc->p_pgid;
1206 break;
1207
1208 case SVR4_P_ALL:
1209 SCARG(uap, id) = WAIT_ANY;
1210 break;
1211
1212 default:
1213 return EINVAL;
1214 }
1215
1216 DPRINTF(("waitsys(%d, %d, %p, %x)\n",
1217 SCARG(uap, grp), SCARG(uap, id),
1218 SCARG(uap, info), SCARG(uap, options)));
1219
1220loop:
1221 nfound = 0;
1222 sx_slock(&proctree_lock);
1223 LIST_FOREACH(q, &td->td_proc->p_children, p_sibling) {
1224 if (SCARG(uap, id) != WAIT_ANY &&
1225 q->p_pid != SCARG(uap, id) &&
1226 q->p_pgid != -SCARG(uap, id)) {
1227 DPRINTF(("pid %d pgid %d != %d\n", q->p_pid,
1228 q->p_pgid, SCARG(uap, id)));
1229 continue;
1230 }
1231 nfound++;
1232 PROC_LOCK(q);
1233 mtx_lock_spin(&sched_lock);
1234 if (q->p_stat == SZOMB &&
1235 ((SCARG(uap, options) & (SVR4_WEXITED|SVR4_WTRAPPED)))) {
1236 mtx_unlock_spin(&sched_lock);
1237 PROC_UNLOCK(q);
1238 sx_sunlock(&proctree_lock);
1239 *retval = 0;
1240 DPRINTF(("found %d\n", q->p_pid));
1241 error = svr4_setinfo(q, q->p_xstat, SCARG(uap, info));
1242 if (error != 0)
1243 return error;
1244
1245
1246 if ((SCARG(uap, options) & SVR4_WNOWAIT)) {
1247 DPRINTF(("Don't wait\n"));
1248 return 0;
1249 }
1250
1251 /*
1252 * If we got the child via ptrace(2) or procfs, and
1253 * the parent is different (meaning the process was
1254 * attached, rather than run as a child), then we need
1255 * to give it back to the old parent, and send the
1256 * parent a SIGCHLD. The rest of the cleanup will be
1257 * done when the old parent waits on the child.
1258 */
1259 sx_xlock(&proctree_lock);
1260 PROC_LOCK(q);
1261 if (q->p_flag & P_TRACED) {
1262 if (q->p_oppid != q->p_pptr->p_pid) {
1263 PROC_UNLOCK(q);
1264 t = pfind(q->p_oppid);
1265 PROC_LOCK(q);
1266 proc_reparent(q, t ? t : initproc);
1267 q->p_oppid = 0;
1268 q->p_flag &= ~(P_TRACED | P_WAITED);
1269 PROC_UNLOCK(q);
1270 psignal(t, SIGCHLD);
1271 wakeup(t);
1272 PROC_UNLOCK(t);
1273 sx_xunlock(&proctree_lock);
1274 return 0;
1275 }
1276 }
1277 PROC_UNLOCK(q);
1278 sx_xunlock(&proctree_lock);
1279 q->p_xstat = 0;
1280 ruadd(&td->td_proc->p_stats->p_cru, q->p_ru);
1281 FREE(q->p_ru, M_ZOMBIE);
1282 q->p_ru = 0;
1283
1284 /*
1285 * Decrement the count of procs running with this uid.
1286 */
1287 (void)chgproccnt(q->p_ucred->cr_ruidinfo, -1, 0);
1288
1289 /*
1290 * Release reference to text vnode.
1291 */
1292 if (q->p_textvp)
1293 vrele(q->p_textvp);
1294
1295 /*
1296 * Free up credentials.
1297 */
1298 crfree(q->p_ucred);
1299 q->p_ucred = NULL;
1300
1301 /*
1302 * Remove unused arguments
1303 */
1304 if (q->p_args && --q->p_args->ar_ref == 0)
1305 FREE(q->p_args, M_PARGS);
1306 PROC_UNLOCK(q);
1307
1308 /*
1309 * Finally finished with old proc entry.
1310 * Unlink it from its process group and free it.
1311 */
1312 leavepgrp(q);
1313
1314 sx_xlock(&allproc_lock);
1315 LIST_REMOVE(q, p_list); /* off zombproc */
1316 sx_xunlock(&allproc_lock);
1317
1318 sx_xlock(&proctree_lock);
1319 LIST_REMOVE(q, p_sibling);
1320 sx_xunlock(&proctree_lock);
1321
1322 PROC_LOCK(q);
1323 if (--q->p_procsig->ps_refcnt == 0) {
1324 if (q->p_sigacts != &q->p_uarea->u_sigacts)
1325 FREE(q->p_sigacts, M_SUBPROC);
1326 FREE(q->p_procsig, M_SUBPROC);
1327 q->p_procsig = NULL;
1328 }
1329 PROC_UNLOCK(q);
1330
1331 /*
1332 * Give machine-dependent layer a chance
1333 * to free anything that cpu_exit couldn't
1334 * release while still running in process context.
1335 */
1336 cpu_wait(q);
1337#if defined(__NetBSD__)
1338 pool_put(&proc_pool, q);
1339#endif
1340#ifdef __FreeBSD__
1341 mtx_destroy(&q->p_mtx);
1342 zfree(proc_zone, q);
1343#endif
1344 nprocs--;
1345 return 0;
1346 }
1347 if (q->p_stat == SSTOP && (q->p_flag & P_WAITED) == 0 &&
1348 (q->p_flag & P_TRACED ||
1349 (SCARG(uap, options) & (SVR4_WSTOPPED|SVR4_WCONTINUED)))) {
1350 mtx_unlock_spin(&sched_lock);
1351 DPRINTF(("jobcontrol %d\n", q->p_pid));
1352 if (((SCARG(uap, options) & SVR4_WNOWAIT)) == 0)
1353 q->p_flag |= P_WAITED;
1354 PROC_UNLOCK(q);
1355 *retval = 0;
1356 return svr4_setinfo(q, W_STOPCODE(q->p_xstat),
1357 SCARG(uap, info));
1358 }
1359 mtx_unlock_spin(&sched_lock);
1360 PROC_UNLOCK(q);
1361 }
1362
1363 if (nfound == 0)
1364 return ECHILD;
1365
1366 if (SCARG(uap, options) & SVR4_WNOHANG) {
1367 *retval = 0;
1368 if ((error = svr4_setinfo(NULL, 0, SCARG(uap, info))) != 0)
1369 return error;
1370 return 0;
1371 }
1372
1373 if ((error = tsleep((caddr_t)td->td_proc, PWAIT | PCATCH, "svr4_wait", 0)) != 0)
1374 return error;
1375 goto loop;
1376}
1377
1378
1379static void
1380bsd_statfs_to_svr4_statvfs(bfs, sfs)
1381 const struct statfs *bfs;
1382 struct svr4_statvfs *sfs;
1383{
1384 sfs->f_bsize = bfs->f_iosize; /* XXX */
1385 sfs->f_frsize = bfs->f_bsize;
1386 sfs->f_blocks = bfs->f_blocks;
1387 sfs->f_bfree = bfs->f_bfree;
1388 sfs->f_bavail = bfs->f_bavail;
1389 sfs->f_files = bfs->f_files;
1390 sfs->f_ffree = bfs->f_ffree;
1391 sfs->f_favail = bfs->f_ffree;
1392 sfs->f_fsid = bfs->f_fsid.val[0];
1393 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype));
1394 sfs->f_flag = 0;
1395 if (bfs->f_flags & MNT_RDONLY)
1396 sfs->f_flag |= SVR4_ST_RDONLY;
1397 if (bfs->f_flags & MNT_NOSUID)
1398 sfs->f_flag |= SVR4_ST_NOSUID;
1399 sfs->f_namemax = MAXNAMLEN;
1400 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */
1401 memset(sfs->f_filler, 0, sizeof(sfs->f_filler));
1402}
1403
1404
1405static void
1406bsd_statfs_to_svr4_statvfs64(bfs, sfs)
1407 const struct statfs *bfs;
1408 struct svr4_statvfs64 *sfs;
1409{
1410 sfs->f_bsize = bfs->f_iosize; /* XXX */
1411 sfs->f_frsize = bfs->f_bsize;
1412 sfs->f_blocks = bfs->f_blocks;
1413 sfs->f_bfree = bfs->f_bfree;
1414 sfs->f_bavail = bfs->f_bavail;
1415 sfs->f_files = bfs->f_files;
1416 sfs->f_ffree = bfs->f_ffree;
1417 sfs->f_favail = bfs->f_ffree;
1418 sfs->f_fsid = bfs->f_fsid.val[0];
1419 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype));
1420 sfs->f_flag = 0;
1421 if (bfs->f_flags & MNT_RDONLY)
1422 sfs->f_flag |= SVR4_ST_RDONLY;
1423 if (bfs->f_flags & MNT_NOSUID)
1424 sfs->f_flag |= SVR4_ST_NOSUID;
1425 sfs->f_namemax = MAXNAMLEN;
1426 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */
1427 memset(sfs->f_filler, 0, sizeof(sfs->f_filler));
1428}
1429
1430
1431int
1432svr4_sys_statvfs(td, uap)
1433 struct thread *td;
1434 struct svr4_sys_statvfs_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_statvfs sfs;
1441 int error;
1442
1443 CHECKALTEXIST(td, &sg, SCARG(uap, path));
1444 SCARG(&fs_args, path) = SCARG(uap, path);
1445 SCARG(&fs_args, buf) = fs;
1446
1447 if ((error = statfs(td, &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_statvfs(&bfs, &sfs);
1454
1455 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1456}
1457
1458
1459int
1460svr4_sys_fstatvfs(td, uap)
1461 struct thread *td;
1462 struct svr4_sys_fstatvfs_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_statvfs sfs;
1469 int error;
1470
1471 SCARG(&fs_args, fd) = SCARG(uap, fd);
1472 SCARG(&fs_args, buf) = fs;
1473
1474 if ((error = fstatfs(td, &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_statvfs(&bfs, &sfs);
1481
1482 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1483}
1484
1485
1486int
1487svr4_sys_statvfs64(td, uap)
1488 struct thread *td;
1489 struct svr4_sys_statvfs64_args *uap;
1490{
1491 struct statfs_args fs_args;
1492 caddr_t sg = stackgap_init();
1493 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1494 struct statfs bfs;
1495 struct svr4_statvfs64 sfs;
1496 int error;
1497
1498 CHECKALTEXIST(td, &sg, SCARG(uap, path));
1499 SCARG(&fs_args, path) = SCARG(uap, path);
1500 SCARG(&fs_args, buf) = fs;
1501
1502 if ((error = statfs(td, &fs_args)) != 0)
1503 return error;
1504
1505 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1506 return error;
1507
1508 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs);
1509
1510 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1511}
1512
1513
1514int
1515svr4_sys_fstatvfs64(td, uap)
1516 struct thread *td;
1517 struct svr4_sys_fstatvfs64_args *uap;
1518{
1519 struct fstatfs_args fs_args;
1520 caddr_t sg = stackgap_init();
1521 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs));
1522 struct statfs bfs;
1523 struct svr4_statvfs64 sfs;
1524 int error;
1525
1526 SCARG(&fs_args, fd) = SCARG(uap, fd);
1527 SCARG(&fs_args, buf) = fs;
1528
1529 if ((error = fstatfs(td, &fs_args)) != 0)
1530 return error;
1531
1532 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0)
1533 return error;
1534
1535 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs);
1536
1537 return copyout(&sfs, SCARG(uap, fs), sizeof(sfs));
1538}
1539
1540int
1541svr4_sys_alarm(td, uap)
1542 struct thread *td;
1543 struct svr4_sys_alarm_args *uap;
1544{
1545 int error;
1546 struct itimerval *itp, *oitp;
1547 struct setitimer_args sa;
1548 caddr_t sg = stackgap_init();
1549
1550 itp = stackgap_alloc(&sg, sizeof(*itp));
1551 oitp = stackgap_alloc(&sg, sizeof(*oitp));
1552 timevalclear(&itp->it_interval);
1553 itp->it_value.tv_sec = SCARG(uap, sec);
1554 itp->it_value.tv_usec = 0;
1555
1556 SCARG(&sa, which) = ITIMER_REAL;
1557 SCARG(&sa, itv) = itp;
1558 SCARG(&sa, oitv) = oitp;
1559 error = setitimer(td, &sa);
1560 if (error)
1561 return error;
1562 if (oitp->it_value.tv_usec)
1563 oitp->it_value.tv_sec++;
1564 td->td_retval[0] = oitp->it_value.tv_sec;
1565 return 0;
1566
1567}
1568
1569int
1570svr4_sys_gettimeofday(td, uap)
1571 struct thread *td;
1572 struct svr4_sys_gettimeofday_args *uap;
1573{
1574 if (SCARG(uap, tp)) {
1575 struct timeval atv;
1576
1577 microtime(&atv);
1578 return copyout(&atv, SCARG(uap, tp), sizeof (atv));
1579 }
1580
1581 return 0;
1582}
1583
1584int
1585svr4_sys_facl(td, uap)
1586 struct thread *td;
1587 struct svr4_sys_facl_args *uap;
1588{
1589 int *retval;
1590
1591 retval = td->td_retval;
1592 *retval = 0;
1593
1594 switch (SCARG(uap, cmd)) {
1595 case SVR4_SYS_SETACL:
1596 /* We don't support acls on any filesystem */
1597 return ENOSYS;
1598
1599 case SVR4_SYS_GETACL:
1600 return copyout(retval, &SCARG(uap, num),
1601 sizeof(SCARG(uap, num)));
1602
1603 case SVR4_SYS_GETACLCNT:
1604 return 0;
1605
1606 default:
1607 return EINVAL;
1608 }
1609}
1610
1611
1612int
1613svr4_sys_acl(td, uap)
1614 struct thread *td;
1615 struct svr4_sys_acl_args *uap;
1616{
1617 /* XXX: for now the same */
1618 return svr4_sys_facl(td, (struct svr4_sys_facl_args *)uap);
1619}
1620
1621int
1622svr4_sys_auditsys(td, uap)
1623 struct thread *td;
1624 struct svr4_sys_auditsys_args *uap;
1625{
1626 /*
1627 * XXX: Big brother is *not* watching.
1628 */
1629 return 0;
1630}
1631
1632int
1633svr4_sys_memcntl(td, uap)
1634 struct thread *td;
1635 struct svr4_sys_memcntl_args *uap;
1636{
1637 switch (SCARG(uap, cmd)) {
1638 case SVR4_MC_SYNC:
1639 {
1640 struct msync_args msa;
1641
1642 SCARG(&msa, addr) = SCARG(uap, addr);
1643 SCARG(&msa, len) = SCARG(uap, len);
1644 SCARG(&msa, flags) = (int)SCARG(uap, arg);
1645
1646 return msync(td, &msa);
1647 }
1648 case SVR4_MC_ADVISE:
1649 {
1650 struct madvise_args maa;
1651
1652 SCARG(&maa, addr) = SCARG(uap, addr);
1653 SCARG(&maa, len) = SCARG(uap, len);
1654 SCARG(&maa, behav) = (int)SCARG(uap, arg);
1655
1656 return madvise(td, &maa);
1657 }
1658 case SVR4_MC_LOCK:
1659 case SVR4_MC_UNLOCK:
1660 case SVR4_MC_LOCKAS:
1661 case SVR4_MC_UNLOCKAS:
1662 return EOPNOTSUPP;
1663 default:
1664 return ENOSYS;
1665 }
1666}
1667
1668
1669int
1670svr4_sys_nice(td, uap)
1671 struct thread *td;
1672 struct svr4_sys_nice_args *uap;
1673{
1674 struct setpriority_args ap;
1675 int error;
1676
1677 SCARG(&ap, which) = PRIO_PROCESS;
1678 SCARG(&ap, who) = 0;
1679 SCARG(&ap, prio) = SCARG(uap, prio);
1680
1681 if ((error = setpriority(td, &ap)) != 0)
1682 return error;
1683
1684 /* the cast is stupid, but the structures are the same */
1685 if ((error = getpriority(td, (struct getpriority_args *)&ap)) != 0)
1686 return error;
1687
1688 return 0;
1689}
1690
1691int
1692svr4_sys_resolvepath(td, uap)
1693 struct thread *td;
1694 struct svr4_sys_resolvepath_args *uap;
1695{
1696 struct nameidata nd;
1697 int error, *retval = td->td_retval;
1698
1699 NDINIT(&nd, LOOKUP, NOFOLLOW | SAVENAME, UIO_USERSPACE,
1700 SCARG(uap, path), td);
1701
1702 if ((error = namei(&nd)) != 0)
1703 return error;
1704
1705 if ((error = copyout(nd.ni_cnd.cn_pnbuf, SCARG(uap, buf),
1706 SCARG(uap, bufsiz))) != 0)
1707 goto bad;
1708
1709 *retval = strlen(nd.ni_cnd.cn_pnbuf) < SCARG(uap, bufsiz) ?
1710 strlen(nd.ni_cnd.cn_pnbuf) + 1 : SCARG(uap, bufsiz);
1711bad:
1712 NDFREE(&nd, NDF_ONLY_PNBUF);
1713 vput(nd.ni_vp);
1714 return error;
1715}
|