1 /*-
2 * Copyright (c) 2002 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD: releng/9.0/sys/compat/freebsd32/freebsd32_misc.c 225617 2011-09-16 13:58:51Z kmacy $");
29
30 #include "opt_compat.h"
31 #include "opt_inet.h"
32 #include "opt_inet6.h"
33
34 #define __ELF_WORD_SIZE 32
35
36 #include <sys/param.h>
37 #include <sys/bus.h>
38 #include <sys/clock.h>
39 #include <sys/exec.h>
40 #include <sys/fcntl.h>
41 #include <sys/filedesc.h>
42 #include <sys/imgact.h>
43 #include <sys/jail.h>
44 #include <sys/kernel.h>
45 #include <sys/limits.h>
46 #include <sys/linker.h>
47 #include <sys/lock.h>
48 #include <sys/malloc.h>
49 #include <sys/file.h> /* Must come after sys/malloc.h */
50 #include <sys/imgact.h>
51 #include <sys/mbuf.h>
52 #include <sys/mman.h>
53 #include <sys/module.h>
54 #include <sys/mount.h>
55 #include <sys/mutex.h>
56 #include <sys/namei.h>
57 #include <sys/proc.h>
58 #include <sys/reboot.h>
59 #include <sys/resource.h>
60 #include <sys/resourcevar.h>
61 #include <sys/selinfo.h>
62 #include <sys/eventvar.h> /* Must come after sys/selinfo.h */
63 #include <sys/pipe.h> /* Must come after sys/selinfo.h */
64 #include <sys/signal.h>
65 #include <sys/signalvar.h>
66 #include <sys/socket.h>
67 #include <sys/socketvar.h>
68 #include <sys/stat.h>
69 #include <sys/syscall.h>
70 #include <sys/syscallsubr.h>
71 #include <sys/sysctl.h>
72 #include <sys/sysent.h>
73 #include <sys/sysproto.h>
74 #include <sys/systm.h>
75 #include <sys/thr.h>
76 #include <sys/unistd.h>
77 #include <sys/ucontext.h>
78 #include <sys/vnode.h>
79 #include <sys/wait.h>
80 #include <sys/ipc.h>
81 #include <sys/msg.h>
82 #include <sys/sem.h>
83 #include <sys/shm.h>
84
85 #ifdef INET
86 #include <netinet/in.h>
87 #endif
88
89 #include <vm/vm.h>
90 #include <vm/vm_param.h>
91 #include <vm/pmap.h>
92 #include <vm/vm_map.h>
93 #include <vm/vm_object.h>
94 #include <vm/vm_extern.h>
95
96 #include <machine/cpu.h>
97 #include <machine/elf.h>
98
99 #include <security/audit/audit.h>
100
101 #include <compat/freebsd32/freebsd32_util.h>
102 #include <compat/freebsd32/freebsd32.h>
103 #include <compat/freebsd32/freebsd32_ipc.h>
104 #include <compat/freebsd32/freebsd32_signal.h>
105 #include <compat/freebsd32/freebsd32_proto.h>
106
107 CTASSERT(sizeof(struct timeval32) == 8);
108 CTASSERT(sizeof(struct timespec32) == 8);
109 CTASSERT(sizeof(struct itimerval32) == 16);
110 CTASSERT(sizeof(struct statfs32) == 256);
111 CTASSERT(sizeof(struct rusage32) == 72);
112 CTASSERT(sizeof(struct sigaltstack32) == 12);
113 CTASSERT(sizeof(struct kevent32) == 20);
114 CTASSERT(sizeof(struct iovec32) == 8);
115 CTASSERT(sizeof(struct msghdr32) == 28);
116 CTASSERT(sizeof(struct stat32) == 96);
117 CTASSERT(sizeof(struct sigaction32) == 24);
118
119 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count);
120 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count);
121
122 #if BYTE_ORDER == BIG_ENDIAN
123 #define PAIR32TO64(type, name) ((name ## 2) | ((type)(name ## 1) << 32))
124 #define RETVAL_HI 0
125 #define RETVAL_LO 1
126 #else
127 #define PAIR32TO64(type, name) ((name ## 1) | ((type)(name ## 2) << 32))
128 #define RETVAL_HI 1
129 #define RETVAL_LO 0
130 #endif
131
132 void
133 freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32)
134 {
135
136 TV_CP(*s, *s32, ru_utime);
137 TV_CP(*s, *s32, ru_stime);
138 CP(*s, *s32, ru_maxrss);
139 CP(*s, *s32, ru_ixrss);
140 CP(*s, *s32, ru_idrss);
141 CP(*s, *s32, ru_isrss);
142 CP(*s, *s32, ru_minflt);
143 CP(*s, *s32, ru_majflt);
144 CP(*s, *s32, ru_nswap);
145 CP(*s, *s32, ru_inblock);
146 CP(*s, *s32, ru_oublock);
147 CP(*s, *s32, ru_msgsnd);
148 CP(*s, *s32, ru_msgrcv);
149 CP(*s, *s32, ru_nsignals);
150 CP(*s, *s32, ru_nvcsw);
151 CP(*s, *s32, ru_nivcsw);
152 }
153
154 int
155 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap)
156 {
157 int error, status;
158 struct rusage32 ru32;
159 struct rusage ru, *rup;
160
161 if (uap->rusage != NULL)
162 rup = &ru;
163 else
164 rup = NULL;
165 error = kern_wait(td, uap->pid, &status, uap->options, rup);
166 if (error)
167 return (error);
168 if (uap->status != NULL)
169 error = copyout(&status, uap->status, sizeof(status));
170 if (uap->rusage != NULL && error == 0) {
171 freebsd32_rusage_out(&ru, &ru32);
172 error = copyout(&ru32, uap->rusage, sizeof(ru32));
173 }
174 return (error);
175 }
176
177 #ifdef COMPAT_FREEBSD4
178 static void
179 copy_statfs(struct statfs *in, struct statfs32 *out)
180 {
181
182 statfs_scale_blocks(in, INT32_MAX);
183 bzero(out, sizeof(*out));
184 CP(*in, *out, f_bsize);
185 out->f_iosize = MIN(in->f_iosize, INT32_MAX);
186 CP(*in, *out, f_blocks);
187 CP(*in, *out, f_bfree);
188 CP(*in, *out, f_bavail);
189 out->f_files = MIN(in->f_files, INT32_MAX);
190 out->f_ffree = MIN(in->f_ffree, INT32_MAX);
191 CP(*in, *out, f_fsid);
192 CP(*in, *out, f_owner);
193 CP(*in, *out, f_type);
194 CP(*in, *out, f_flags);
195 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX);
196 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX);
197 strlcpy(out->f_fstypename,
198 in->f_fstypename, MFSNAMELEN);
199 strlcpy(out->f_mntonname,
200 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN));
201 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX);
202 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX);
203 strlcpy(out->f_mntfromname,
204 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN));
205 }
206 #endif
207
208 #ifdef COMPAT_FREEBSD4
209 int
210 freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap)
211 {
212 struct statfs *buf, *sp;
213 struct statfs32 stat32;
214 size_t count, size;
215 int error;
216
217 count = uap->bufsize / sizeof(struct statfs32);
218 size = count * sizeof(struct statfs);
219 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags);
220 if (size > 0) {
221 count = td->td_retval[0];
222 sp = buf;
223 while (count > 0 && error == 0) {
224 copy_statfs(sp, &stat32);
225 error = copyout(&stat32, uap->buf, sizeof(stat32));
226 sp++;
227 uap->buf++;
228 count--;
229 }
230 free(buf, M_TEMP);
231 }
232 return (error);
233 }
234 #endif
235
236 int
237 freebsd32_sigaltstack(struct thread *td,
238 struct freebsd32_sigaltstack_args *uap)
239 {
240 struct sigaltstack32 s32;
241 struct sigaltstack ss, oss, *ssp;
242 int error;
243
244 if (uap->ss != NULL) {
245 error = copyin(uap->ss, &s32, sizeof(s32));
246 if (error)
247 return (error);
248 PTRIN_CP(s32, ss, ss_sp);
249 CP(s32, ss, ss_size);
250 CP(s32, ss, ss_flags);
251 ssp = &ss;
252 } else
253 ssp = NULL;
254 error = kern_sigaltstack(td, ssp, &oss);
255 if (error == 0 && uap->oss != NULL) {
256 PTROUT_CP(oss, s32, ss_sp);
257 CP(oss, s32, ss_size);
258 CP(oss, s32, ss_flags);
259 error = copyout(&s32, uap->oss, sizeof(s32));
260 }
261 return (error);
262 }
263
264 /*
265 * Custom version of exec_copyin_args() so that we can translate
266 * the pointers.
267 */
268 int
269 freebsd32_exec_copyin_args(struct image_args *args, char *fname,
270 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv)
271 {
272 char *argp, *envp;
273 u_int32_t *p32, arg;
274 size_t length;
275 int error;
276
277 bzero(args, sizeof(*args));
278 if (argv == NULL)
279 return (EFAULT);
280
281 /*
282 * Allocate demand-paged memory for the file name, argument, and
283 * environment strings.
284 */
285 error = exec_alloc_args(args);
286 if (error != 0)
287 return (error);
288
289 /*
290 * Copy the file name.
291 */
292 if (fname != NULL) {
293 args->fname = args->buf;
294 error = (segflg == UIO_SYSSPACE) ?
295 copystr(fname, args->fname, PATH_MAX, &length) :
296 copyinstr(fname, args->fname, PATH_MAX, &length);
297 if (error != 0)
298 goto err_exit;
299 } else
300 length = 0;
301
302 args->begin_argv = args->buf + length;
303 args->endp = args->begin_argv;
304 args->stringspace = ARG_MAX;
305
306 /*
307 * extract arguments first
308 */
309 p32 = argv;
310 for (;;) {
311 error = copyin(p32++, &arg, sizeof(arg));
312 if (error)
313 goto err_exit;
314 if (arg == 0)
315 break;
316 argp = PTRIN(arg);
317 error = copyinstr(argp, args->endp, args->stringspace, &length);
318 if (error) {
319 if (error == ENAMETOOLONG)
320 error = E2BIG;
321 goto err_exit;
322 }
323 args->stringspace -= length;
324 args->endp += length;
325 args->argc++;
326 }
327
328 args->begin_envv = args->endp;
329
330 /*
331 * extract environment strings
332 */
333 if (envv) {
334 p32 = envv;
335 for (;;) {
336 error = copyin(p32++, &arg, sizeof(arg));
337 if (error)
338 goto err_exit;
339 if (arg == 0)
340 break;
341 envp = PTRIN(arg);
342 error = copyinstr(envp, args->endp, args->stringspace,
343 &length);
344 if (error) {
345 if (error == ENAMETOOLONG)
346 error = E2BIG;
347 goto err_exit;
348 }
349 args->stringspace -= length;
350 args->endp += length;
351 args->envc++;
352 }
353 }
354
355 return (0);
356
357 err_exit:
358 exec_free_args(args);
359 return (error);
360 }
361
362 int
363 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap)
364 {
365 struct image_args eargs;
366 int error;
367
368 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE,
369 uap->argv, uap->envv);
370 if (error == 0)
371 error = kern_execve(td, &eargs, NULL);
372 return (error);
373 }
374
375 int
376 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap)
377 {
378 struct image_args eargs;
379 int error;
380
381 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE,
382 uap->argv, uap->envv);
383 if (error == 0) {
384 eargs.fd = uap->fd;
385 error = kern_execve(td, &eargs, NULL);
386 }
387 return (error);
388 }
389
390 #ifdef __ia64__
391 static int
392 freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end,
393 int prot, int fd, off_t pos)
394 {
395 vm_map_t map;
396 vm_map_entry_t entry;
397 int rv;
398
399 map = &td->td_proc->p_vmspace->vm_map;
400 if (fd != -1)
401 prot |= VM_PROT_WRITE;
402
403 if (vm_map_lookup_entry(map, start, &entry)) {
404 if ((entry->protection & prot) != prot) {
405 rv = vm_map_protect(map,
406 trunc_page(start),
407 round_page(end),
408 entry->protection | prot,
409 FALSE);
410 if (rv != KERN_SUCCESS)
411 return (EINVAL);
412 }
413 } else {
414 vm_offset_t addr = trunc_page(start);
415 rv = vm_map_find(map, 0, 0,
416 &addr, PAGE_SIZE, FALSE, prot,
417 VM_PROT_ALL, 0);
418 if (rv != KERN_SUCCESS)
419 return (EINVAL);
420 }
421
422 if (fd != -1) {
423 struct pread_args r;
424 r.fd = fd;
425 r.buf = (void *) start;
426 r.nbyte = end - start;
427 r.offset = pos;
428 return (sys_pread(td, &r));
429 } else {
430 while (start < end) {
431 subyte((void *) start, 0);
432 start++;
433 }
434 return (0);
435 }
436 }
437 #endif
438
439 int
440 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap)
441 {
442 struct mmap_args ap;
443 vm_offset_t addr = (vm_offset_t) uap->addr;
444 vm_size_t len = uap->len;
445 int prot = uap->prot;
446 int flags = uap->flags;
447 int fd = uap->fd;
448 off_t pos = PAIR32TO64(off_t,uap->pos);
449 #ifdef __ia64__
450 vm_size_t pageoff;
451 int error;
452
453 /*
454 * Attempt to handle page size hassles.
455 */
456 pageoff = (pos & PAGE_MASK);
457 if (flags & MAP_FIXED) {
458 vm_offset_t start, end;
459 start = addr;
460 end = addr + len;
461
462 if (start != trunc_page(start)) {
463 error = freebsd32_mmap_partial(td, start,
464 round_page(start), prot,
465 fd, pos);
466 if (fd != -1)
467 pos += round_page(start) - start;
468 start = round_page(start);
469 }
470 if (end != round_page(end)) {
471 vm_offset_t t = trunc_page(end);
472 error = freebsd32_mmap_partial(td, t, end,
473 prot, fd,
474 pos + t - start);
475 end = trunc_page(end);
476 }
477 if (end > start && fd != -1 && (pos & PAGE_MASK)) {
478 /*
479 * We can't map this region at all. The specified
480 * address doesn't have the same alignment as the file
481 * position. Fake the mapping by simply reading the
482 * entire region into memory. First we need to make
483 * sure the region exists.
484 */
485 vm_map_t map;
486 struct pread_args r;
487 int rv;
488
489 prot |= VM_PROT_WRITE;
490 map = &td->td_proc->p_vmspace->vm_map;
491 rv = vm_map_remove(map, start, end);
492 if (rv != KERN_SUCCESS)
493 return (EINVAL);
494 rv = vm_map_find(map, 0, 0,
495 &start, end - start, FALSE,
496 prot, VM_PROT_ALL, 0);
497 if (rv != KERN_SUCCESS)
498 return (EINVAL);
499 r.fd = fd;
500 r.buf = (void *) start;
501 r.nbyte = end - start;
502 r.offset = pos;
503 error = sys_pread(td, &r);
504 if (error)
505 return (error);
506
507 td->td_retval[0] = addr;
508 return (0);
509 }
510 if (end == start) {
511 /*
512 * After dealing with the ragged ends, there
513 * might be none left.
514 */
515 td->td_retval[0] = addr;
516 return (0);
517 }
518 addr = start;
519 len = end - start;
520 }
521 #endif
522
523 ap.addr = (void *) addr;
524 ap.len = len;
525 ap.prot = prot;
526 ap.flags = flags;
527 ap.fd = fd;
528 ap.pos = pos;
529
530 return (sys_mmap(td, &ap));
531 }
532
533 #ifdef COMPAT_FREEBSD6
534 int
535 freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap)
536 {
537 struct freebsd32_mmap_args ap;
538
539 ap.addr = uap->addr;
540 ap.len = uap->len;
541 ap.prot = uap->prot;
542 ap.flags = uap->flags;
543 ap.fd = uap->fd;
544 ap.pos1 = uap->pos1;
545 ap.pos2 = uap->pos2;
546
547 return (freebsd32_mmap(td, &ap));
548 }
549 #endif
550
551 int
552 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap)
553 {
554 struct itimerval itv, oitv, *itvp;
555 struct itimerval32 i32;
556 int error;
557
558 if (uap->itv != NULL) {
559 error = copyin(uap->itv, &i32, sizeof(i32));
560 if (error)
561 return (error);
562 TV_CP(i32, itv, it_interval);
563 TV_CP(i32, itv, it_value);
564 itvp = &itv;
565 } else
566 itvp = NULL;
567 error = kern_setitimer(td, uap->which, itvp, &oitv);
568 if (error || uap->oitv == NULL)
569 return (error);
570 TV_CP(oitv, i32, it_interval);
571 TV_CP(oitv, i32, it_value);
572 return (copyout(&i32, uap->oitv, sizeof(i32)));
573 }
574
575 int
576 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap)
577 {
578 struct itimerval itv;
579 struct itimerval32 i32;
580 int error;
581
582 error = kern_getitimer(td, uap->which, &itv);
583 if (error || uap->itv == NULL)
584 return (error);
585 TV_CP(itv, i32, it_interval);
586 TV_CP(itv, i32, it_value);
587 return (copyout(&i32, uap->itv, sizeof(i32)));
588 }
589
590 int
591 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap)
592 {
593 struct timeval32 tv32;
594 struct timeval tv, *tvp;
595 int error;
596
597 if (uap->tv != NULL) {
598 error = copyin(uap->tv, &tv32, sizeof(tv32));
599 if (error)
600 return (error);
601 CP(tv32, tv, tv_sec);
602 CP(tv32, tv, tv_usec);
603 tvp = &tv;
604 } else
605 tvp = NULL;
606 /*
607 * XXX Do pointers need PTRIN()?
608 */
609 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp,
610 sizeof(int32_t) * 8));
611 }
612
613 int
614 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap)
615 {
616 struct timespec32 ts32;
617 struct timespec ts;
618 struct timeval tv, *tvp;
619 sigset_t set, *uset;
620 int error;
621
622 if (uap->ts != NULL) {
623 error = copyin(uap->ts, &ts32, sizeof(ts32));
624 if (error != 0)
625 return (error);
626 CP(ts32, ts, tv_sec);
627 CP(ts32, ts, tv_nsec);
628 TIMESPEC_TO_TIMEVAL(&tv, &ts);
629 tvp = &tv;
630 } else
631 tvp = NULL;
632 if (uap->sm != NULL) {
633 error = copyin(uap->sm, &set, sizeof(set));
634 if (error != 0)
635 return (error);
636 uset = &set;
637 } else
638 uset = NULL;
639 /*
640 * XXX Do pointers need PTRIN()?
641 */
642 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp,
643 uset, sizeof(int32_t) * 8);
644 return (error);
645 }
646
647 /*
648 * Copy 'count' items into the destination list pointed to by uap->eventlist.
649 */
650 static int
651 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count)
652 {
653 struct freebsd32_kevent_args *uap;
654 struct kevent32 ks32[KQ_NEVENTS];
655 int i, error = 0;
656
657 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
658 uap = (struct freebsd32_kevent_args *)arg;
659
660 for (i = 0; i < count; i++) {
661 CP(kevp[i], ks32[i], ident);
662 CP(kevp[i], ks32[i], filter);
663 CP(kevp[i], ks32[i], flags);
664 CP(kevp[i], ks32[i], fflags);
665 CP(kevp[i], ks32[i], data);
666 PTROUT_CP(kevp[i], ks32[i], udata);
667 }
668 error = copyout(ks32, uap->eventlist, count * sizeof *ks32);
669 if (error == 0)
670 uap->eventlist += count;
671 return (error);
672 }
673
674 /*
675 * Copy 'count' items from the list pointed to by uap->changelist.
676 */
677 static int
678 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count)
679 {
680 struct freebsd32_kevent_args *uap;
681 struct kevent32 ks32[KQ_NEVENTS];
682 int i, error = 0;
683
684 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
685 uap = (struct freebsd32_kevent_args *)arg;
686
687 error = copyin(uap->changelist, ks32, count * sizeof *ks32);
688 if (error)
689 goto done;
690 uap->changelist += count;
691
692 for (i = 0; i < count; i++) {
693 CP(ks32[i], kevp[i], ident);
694 CP(ks32[i], kevp[i], filter);
695 CP(ks32[i], kevp[i], flags);
696 CP(ks32[i], kevp[i], fflags);
697 CP(ks32[i], kevp[i], data);
698 PTRIN_CP(ks32[i], kevp[i], udata);
699 }
700 done:
701 return (error);
702 }
703
704 int
705 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap)
706 {
707 struct timespec32 ts32;
708 struct timespec ts, *tsp;
709 struct kevent_copyops k_ops = { uap,
710 freebsd32_kevent_copyout,
711 freebsd32_kevent_copyin};
712 int error;
713
714
715 if (uap->timeout) {
716 error = copyin(uap->timeout, &ts32, sizeof(ts32));
717 if (error)
718 return (error);
719 CP(ts32, ts, tv_sec);
720 CP(ts32, ts, tv_nsec);
721 tsp = &ts;
722 } else
723 tsp = NULL;
724 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents,
725 &k_ops, tsp);
726 return (error);
727 }
728
729 int
730 freebsd32_gettimeofday(struct thread *td,
731 struct freebsd32_gettimeofday_args *uap)
732 {
733 struct timeval atv;
734 struct timeval32 atv32;
735 struct timezone rtz;
736 int error = 0;
737
738 if (uap->tp) {
739 microtime(&atv);
740 CP(atv, atv32, tv_sec);
741 CP(atv, atv32, tv_usec);
742 error = copyout(&atv32, uap->tp, sizeof (atv32));
743 }
744 if (error == 0 && uap->tzp != NULL) {
745 rtz.tz_minuteswest = tz_minuteswest;
746 rtz.tz_dsttime = tz_dsttime;
747 error = copyout(&rtz, uap->tzp, sizeof (rtz));
748 }
749 return (error);
750 }
751
752 int
753 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap)
754 {
755 struct rusage32 s32;
756 struct rusage s;
757 int error;
758
759 error = kern_getrusage(td, uap->who, &s);
760 if (error)
761 return (error);
762 if (uap->rusage != NULL) {
763 freebsd32_rusage_out(&s, &s32);
764 error = copyout(&s32, uap->rusage, sizeof(s32));
765 }
766 return (error);
767 }
768
769 static int
770 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop)
771 {
772 struct iovec32 iov32;
773 struct iovec *iov;
774 struct uio *uio;
775 u_int iovlen;
776 int error, i;
777
778 *uiop = NULL;
779 if (iovcnt > UIO_MAXIOV)
780 return (EINVAL);
781 iovlen = iovcnt * sizeof(struct iovec);
782 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK);
783 iov = (struct iovec *)(uio + 1);
784 for (i = 0; i < iovcnt; i++) {
785 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32));
786 if (error) {
787 free(uio, M_IOV);
788 return (error);
789 }
790 iov[i].iov_base = PTRIN(iov32.iov_base);
791 iov[i].iov_len = iov32.iov_len;
792 }
793 uio->uio_iov = iov;
794 uio->uio_iovcnt = iovcnt;
795 uio->uio_segflg = UIO_USERSPACE;
796 uio->uio_offset = -1;
797 uio->uio_resid = 0;
798 for (i = 0; i < iovcnt; i++) {
799 if (iov->iov_len > INT_MAX - uio->uio_resid) {
800 free(uio, M_IOV);
801 return (EINVAL);
802 }
803 uio->uio_resid += iov->iov_len;
804 iov++;
805 }
806 *uiop = uio;
807 return (0);
808 }
809
810 int
811 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap)
812 {
813 struct uio *auio;
814 int error;
815
816 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
817 if (error)
818 return (error);
819 error = kern_readv(td, uap->fd, auio);
820 free(auio, M_IOV);
821 return (error);
822 }
823
824 int
825 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap)
826 {
827 struct uio *auio;
828 int error;
829
830 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
831 if (error)
832 return (error);
833 error = kern_writev(td, uap->fd, auio);
834 free(auio, M_IOV);
835 return (error);
836 }
837
838 int
839 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap)
840 {
841 struct uio *auio;
842 int error;
843
844 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
845 if (error)
846 return (error);
847 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset));
848 free(auio, M_IOV);
849 return (error);
850 }
851
852 int
853 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap)
854 {
855 struct uio *auio;
856 int error;
857
858 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
859 if (error)
860 return (error);
861 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset));
862 free(auio, M_IOV);
863 return (error);
864 }
865
866 int
867 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp,
868 int error)
869 {
870 struct iovec32 iov32;
871 struct iovec *iov;
872 u_int iovlen;
873 int i;
874
875 *iovp = NULL;
876 if (iovcnt > UIO_MAXIOV)
877 return (error);
878 iovlen = iovcnt * sizeof(struct iovec);
879 iov = malloc(iovlen, M_IOV, M_WAITOK);
880 for (i = 0; i < iovcnt; i++) {
881 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32));
882 if (error) {
883 free(iov, M_IOV);
884 return (error);
885 }
886 iov[i].iov_base = PTRIN(iov32.iov_base);
887 iov[i].iov_len = iov32.iov_len;
888 }
889 *iovp = iov;
890 return (0);
891 }
892
893 static int
894 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg)
895 {
896 struct msghdr32 m32;
897 int error;
898
899 error = copyin(msg32, &m32, sizeof(m32));
900 if (error)
901 return (error);
902 msg->msg_name = PTRIN(m32.msg_name);
903 msg->msg_namelen = m32.msg_namelen;
904 msg->msg_iov = PTRIN(m32.msg_iov);
905 msg->msg_iovlen = m32.msg_iovlen;
906 msg->msg_control = PTRIN(m32.msg_control);
907 msg->msg_controllen = m32.msg_controllen;
908 msg->msg_flags = m32.msg_flags;
909 return (0);
910 }
911
912 static int
913 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32)
914 {
915 struct msghdr32 m32;
916 int error;
917
918 m32.msg_name = PTROUT(msg->msg_name);
919 m32.msg_namelen = msg->msg_namelen;
920 m32.msg_iov = PTROUT(msg->msg_iov);
921 m32.msg_iovlen = msg->msg_iovlen;
922 m32.msg_control = PTROUT(msg->msg_control);
923 m32.msg_controllen = msg->msg_controllen;
924 m32.msg_flags = msg->msg_flags;
925 error = copyout(&m32, msg32, sizeof(m32));
926 return (error);
927 }
928
929 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1)
930 #define FREEBSD32_ALIGN(p) \
931 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES)
932 #define FREEBSD32_CMSG_SPACE(l) \
933 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l))
934
935 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \
936 FREEBSD32_ALIGN(sizeof(struct cmsghdr)))
937 static int
938 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control)
939 {
940 struct cmsghdr *cm;
941 void *data;
942 socklen_t clen, datalen;
943 int error;
944 caddr_t ctlbuf;
945 int len, maxlen, copylen;
946 struct mbuf *m;
947 error = 0;
948
949 len = msg->msg_controllen;
950 maxlen = msg->msg_controllen;
951 msg->msg_controllen = 0;
952
953 m = control;
954 ctlbuf = msg->msg_control;
955
956 while (m && len > 0) {
957 cm = mtod(m, struct cmsghdr *);
958 clen = m->m_len;
959
960 while (cm != NULL) {
961
962 if (sizeof(struct cmsghdr) > clen ||
963 cm->cmsg_len > clen) {
964 error = EINVAL;
965 break;
966 }
967
968 data = CMSG_DATA(cm);
969 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data;
970
971 /* Adjust message length */
972 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) +
973 datalen;
974
975
976 /* Copy cmsghdr */
977 copylen = sizeof(struct cmsghdr);
978 if (len < copylen) {
979 msg->msg_flags |= MSG_CTRUNC;
980 copylen = len;
981 }
982
983 error = copyout(cm,ctlbuf,copylen);
984 if (error)
985 goto exit;
986
987 ctlbuf += FREEBSD32_ALIGN(copylen);
988 len -= FREEBSD32_ALIGN(copylen);
989
990 if (len <= 0)
991 break;
992
993 /* Copy data */
994 copylen = datalen;
995 if (len < copylen) {
996 msg->msg_flags |= MSG_CTRUNC;
997 copylen = len;
998 }
999
1000 error = copyout(data,ctlbuf,copylen);
1001 if (error)
1002 goto exit;
1003
1004 ctlbuf += FREEBSD32_ALIGN(copylen);
1005 len -= FREEBSD32_ALIGN(copylen);
1006
1007 if (CMSG_SPACE(datalen) < clen) {
1008 clen -= CMSG_SPACE(datalen);
1009 cm = (struct cmsghdr *)
1010 ((caddr_t)cm + CMSG_SPACE(datalen));
1011 } else {
1012 clen = 0;
1013 cm = NULL;
1014 }
1015 }
1016 m = m->m_next;
1017 }
1018
1019 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control;
1020
1021 exit:
1022 return (error);
1023
1024 }
1025
1026 int
1027 freebsd32_recvmsg(td, uap)
1028 struct thread *td;
1029 struct freebsd32_recvmsg_args /* {
1030 int s;
1031 struct msghdr32 *msg;
1032 int flags;
1033 } */ *uap;
1034 {
1035 struct msghdr msg;
1036 struct msghdr32 m32;
1037 struct iovec *uiov, *iov;
1038 struct mbuf *control = NULL;
1039 struct mbuf **controlp;
1040
1041 int error;
1042 error = copyin(uap->msg, &m32, sizeof(m32));
1043 if (error)
1044 return (error);
1045 error = freebsd32_copyinmsghdr(uap->msg, &msg);
1046 if (error)
1047 return (error);
1048 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov,
1049 EMSGSIZE);
1050 if (error)
1051 return (error);
1052 msg.msg_flags = uap->flags;
1053 uiov = msg.msg_iov;
1054 msg.msg_iov = iov;
1055
1056 controlp = (msg.msg_control != NULL) ? &control : NULL;
1057 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp);
1058 if (error == 0) {
1059 msg.msg_iov = uiov;
1060
1061 if (control != NULL)
1062 error = freebsd32_copy_msg_out(&msg, control);
1063 else
1064 msg.msg_controllen = 0;
1065
1066 if (error == 0)
1067 error = freebsd32_copyoutmsghdr(&msg, uap->msg);
1068 }
1069 free(iov, M_IOV);
1070
1071 if (control != NULL)
1072 m_freem(control);
1073
1074 return (error);
1075 }
1076
1077
1078 static int
1079 freebsd32_convert_msg_in(struct mbuf **controlp)
1080 {
1081 struct mbuf *control = *controlp;
1082 struct cmsghdr *cm = mtod(control, struct cmsghdr *);
1083 void *data;
1084 socklen_t clen = control->m_len, datalen;
1085 int error;
1086
1087 error = 0;
1088 *controlp = NULL;
1089
1090 while (cm != NULL) {
1091 if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) {
1092 error = EINVAL;
1093 break;
1094 }
1095
1096 data = FREEBSD32_CMSG_DATA(cm);
1097 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data;
1098
1099 *controlp = sbcreatecontrol(data, datalen, cm->cmsg_type,
1100 cm->cmsg_level);
1101 controlp = &(*controlp)->m_next;
1102
1103 if (FREEBSD32_CMSG_SPACE(datalen) < clen) {
1104 clen -= FREEBSD32_CMSG_SPACE(datalen);
1105 cm = (struct cmsghdr *)
1106 ((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen));
1107 } else {
1108 clen = 0;
1109 cm = NULL;
1110 }
1111 }
1112
1113 m_freem(control);
1114 return (error);
1115 }
1116
1117
1118 int
1119 freebsd32_sendmsg(struct thread *td,
1120 struct freebsd32_sendmsg_args *uap)
1121 {
1122 struct msghdr msg;
1123 struct msghdr32 m32;
1124 struct iovec *iov;
1125 struct mbuf *control = NULL;
1126 struct sockaddr *to = NULL;
1127 int error;
1128
1129 error = copyin(uap->msg, &m32, sizeof(m32));
1130 if (error)
1131 return (error);
1132 error = freebsd32_copyinmsghdr(uap->msg, &msg);
1133 if (error)
1134 return (error);
1135 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov,
1136 EMSGSIZE);
1137 if (error)
1138 return (error);
1139 msg.msg_iov = iov;
1140 if (msg.msg_name != NULL) {
1141 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen);
1142 if (error) {
1143 to = NULL;
1144 goto out;
1145 }
1146 msg.msg_name = to;
1147 }
1148
1149 if (msg.msg_control) {
1150 if (msg.msg_controllen < sizeof(struct cmsghdr)) {
1151 error = EINVAL;
1152 goto out;
1153 }
1154
1155 error = sockargs(&control, msg.msg_control,
1156 msg.msg_controllen, MT_CONTROL);
1157 if (error)
1158 goto out;
1159
1160 error = freebsd32_convert_msg_in(&control);
1161 if (error)
1162 goto out;
1163 }
1164
1165 error = kern_sendit(td, uap->s, &msg, uap->flags, control,
1166 UIO_USERSPACE);
1167
1168 out:
1169 free(iov, M_IOV);
1170 if (to)
1171 free(to, M_SONAME);
1172 return (error);
1173 }
1174
1175 int
1176 freebsd32_recvfrom(struct thread *td,
1177 struct freebsd32_recvfrom_args *uap)
1178 {
1179 struct msghdr msg;
1180 struct iovec aiov;
1181 int error;
1182
1183 if (uap->fromlenaddr) {
1184 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen,
1185 sizeof(msg.msg_namelen));
1186 if (error)
1187 return (error);
1188 } else {
1189 msg.msg_namelen = 0;
1190 }
1191
1192 msg.msg_name = PTRIN(uap->from);
1193 msg.msg_iov = &aiov;
1194 msg.msg_iovlen = 1;
1195 aiov.iov_base = PTRIN(uap->buf);
1196 aiov.iov_len = uap->len;
1197 msg.msg_control = NULL;
1198 msg.msg_flags = uap->flags;
1199 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL);
1200 if (error == 0 && uap->fromlenaddr)
1201 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr),
1202 sizeof (msg.msg_namelen));
1203 return (error);
1204 }
1205
1206 int
1207 freebsd32_settimeofday(struct thread *td,
1208 struct freebsd32_settimeofday_args *uap)
1209 {
1210 struct timeval32 tv32;
1211 struct timeval tv, *tvp;
1212 struct timezone tz, *tzp;
1213 int error;
1214
1215 if (uap->tv) {
1216 error = copyin(uap->tv, &tv32, sizeof(tv32));
1217 if (error)
1218 return (error);
1219 CP(tv32, tv, tv_sec);
1220 CP(tv32, tv, tv_usec);
1221 tvp = &tv;
1222 } else
1223 tvp = NULL;
1224 if (uap->tzp) {
1225 error = copyin(uap->tzp, &tz, sizeof(tz));
1226 if (error)
1227 return (error);
1228 tzp = &tz;
1229 } else
1230 tzp = NULL;
1231 return (kern_settimeofday(td, tvp, tzp));
1232 }
1233
1234 int
1235 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap)
1236 {
1237 struct timeval32 s32[2];
1238 struct timeval s[2], *sp;
1239 int error;
1240
1241 if (uap->tptr != NULL) {
1242 error = copyin(uap->tptr, s32, sizeof(s32));
1243 if (error)
1244 return (error);
1245 CP(s32[0], s[0], tv_sec);
1246 CP(s32[0], s[0], tv_usec);
1247 CP(s32[1], s[1], tv_sec);
1248 CP(s32[1], s[1], tv_usec);
1249 sp = s;
1250 } else
1251 sp = NULL;
1252 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE));
1253 }
1254
1255 int
1256 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap)
1257 {
1258 struct timeval32 s32[2];
1259 struct timeval s[2], *sp;
1260 int error;
1261
1262 if (uap->tptr != NULL) {
1263 error = copyin(uap->tptr, s32, sizeof(s32));
1264 if (error)
1265 return (error);
1266 CP(s32[0], s[0], tv_sec);
1267 CP(s32[0], s[0], tv_usec);
1268 CP(s32[1], s[1], tv_sec);
1269 CP(s32[1], s[1], tv_usec);
1270 sp = s;
1271 } else
1272 sp = NULL;
1273 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE));
1274 }
1275
1276 int
1277 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap)
1278 {
1279 struct timeval32 s32[2];
1280 struct timeval s[2], *sp;
1281 int error;
1282
1283 if (uap->tptr != NULL) {
1284 error = copyin(uap->tptr, s32, sizeof(s32));
1285 if (error)
1286 return (error);
1287 CP(s32[0], s[0], tv_sec);
1288 CP(s32[0], s[0], tv_usec);
1289 CP(s32[1], s[1], tv_sec);
1290 CP(s32[1], s[1], tv_usec);
1291 sp = s;
1292 } else
1293 sp = NULL;
1294 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE));
1295 }
1296
1297 int
1298 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap)
1299 {
1300 struct timeval32 s32[2];
1301 struct timeval s[2], *sp;
1302 int error;
1303
1304 if (uap->times != NULL) {
1305 error = copyin(uap->times, s32, sizeof(s32));
1306 if (error)
1307 return (error);
1308 CP(s32[0], s[0], tv_sec);
1309 CP(s32[0], s[0], tv_usec);
1310 CP(s32[1], s[1], tv_sec);
1311 CP(s32[1], s[1], tv_usec);
1312 sp = s;
1313 } else
1314 sp = NULL;
1315 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE,
1316 sp, UIO_SYSSPACE));
1317 }
1318
1319 int
1320 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap)
1321 {
1322 struct timeval32 tv32;
1323 struct timeval delta, olddelta, *deltap;
1324 int error;
1325
1326 if (uap->delta) {
1327 error = copyin(uap->delta, &tv32, sizeof(tv32));
1328 if (error)
1329 return (error);
1330 CP(tv32, delta, tv_sec);
1331 CP(tv32, delta, tv_usec);
1332 deltap = δ
1333 } else
1334 deltap = NULL;
1335 error = kern_adjtime(td, deltap, &olddelta);
1336 if (uap->olddelta && error == 0) {
1337 CP(olddelta, tv32, tv_sec);
1338 CP(olddelta, tv32, tv_usec);
1339 error = copyout(&tv32, uap->olddelta, sizeof(tv32));
1340 }
1341 return (error);
1342 }
1343
1344 #ifdef COMPAT_FREEBSD4
1345 int
1346 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap)
1347 {
1348 struct statfs32 s32;
1349 struct statfs s;
1350 int error;
1351
1352 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s);
1353 if (error)
1354 return (error);
1355 copy_statfs(&s, &s32);
1356 return (copyout(&s32, uap->buf, sizeof(s32)));
1357 }
1358 #endif
1359
1360 #ifdef COMPAT_FREEBSD4
1361 int
1362 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap)
1363 {
1364 struct statfs32 s32;
1365 struct statfs s;
1366 int error;
1367
1368 error = kern_fstatfs(td, uap->fd, &s);
1369 if (error)
1370 return (error);
1371 copy_statfs(&s, &s32);
1372 return (copyout(&s32, uap->buf, sizeof(s32)));
1373 }
1374 #endif
1375
1376 #ifdef COMPAT_FREEBSD4
1377 int
1378 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap)
1379 {
1380 struct statfs32 s32;
1381 struct statfs s;
1382 fhandle_t fh;
1383 int error;
1384
1385 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0)
1386 return (error);
1387 error = kern_fhstatfs(td, fh, &s);
1388 if (error)
1389 return (error);
1390 copy_statfs(&s, &s32);
1391 return (copyout(&s32, uap->buf, sizeof(s32)));
1392 }
1393 #endif
1394
1395 int
1396 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap)
1397 {
1398 struct pread_args ap;
1399
1400 ap.fd = uap->fd;
1401 ap.buf = uap->buf;
1402 ap.nbyte = uap->nbyte;
1403 ap.offset = PAIR32TO64(off_t,uap->offset);
1404 return (sys_pread(td, &ap));
1405 }
1406
1407 int
1408 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap)
1409 {
1410 struct pwrite_args ap;
1411
1412 ap.fd = uap->fd;
1413 ap.buf = uap->buf;
1414 ap.nbyte = uap->nbyte;
1415 ap.offset = PAIR32TO64(off_t,uap->offset);
1416 return (sys_pwrite(td, &ap));
1417 }
1418
1419 #ifdef COMPAT_43
1420 int
1421 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap)
1422 {
1423 struct lseek_args nuap;
1424
1425 nuap.fd = uap->fd;
1426 nuap.offset = uap->offset;
1427 nuap.whence = uap->whence;
1428 return (sys_lseek(td, &nuap));
1429 }
1430 #endif
1431
1432 int
1433 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap)
1434 {
1435 int error;
1436 struct lseek_args ap;
1437 off_t pos;
1438
1439 ap.fd = uap->fd;
1440 ap.offset = PAIR32TO64(off_t,uap->offset);
1441 ap.whence = uap->whence;
1442 error = sys_lseek(td, &ap);
1443 /* Expand the quad return into two parts for eax and edx */
1444 pos = *(off_t *)(td->td_retval);
1445 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */
1446 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */
1447 return error;
1448 }
1449
1450 int
1451 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap)
1452 {
1453 struct truncate_args ap;
1454
1455 ap.path = uap->path;
1456 ap.length = PAIR32TO64(off_t,uap->length);
1457 return (sys_truncate(td, &ap));
1458 }
1459
1460 int
1461 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap)
1462 {
1463 struct ftruncate_args ap;
1464
1465 ap.fd = uap->fd;
1466 ap.length = PAIR32TO64(off_t,uap->length);
1467 return (sys_ftruncate(td, &ap));
1468 }
1469
1470 #ifdef COMPAT_43
1471 int
1472 ofreebsd32_getdirentries(struct thread *td,
1473 struct ofreebsd32_getdirentries_args *uap)
1474 {
1475 struct ogetdirentries_args ap;
1476 int error;
1477 long loff;
1478 int32_t loff_cut;
1479
1480 ap.fd = uap->fd;
1481 ap.buf = uap->buf;
1482 ap.count = uap->count;
1483 ap.basep = NULL;
1484 error = kern_ogetdirentries(td, &ap, &loff);
1485 if (error == 0) {
1486 loff_cut = loff;
1487 error = copyout(&loff_cut, uap->basep, sizeof(int32_t));
1488 }
1489 return (error);
1490 }
1491 #endif
1492
1493 int
1494 freebsd32_getdirentries(struct thread *td,
1495 struct freebsd32_getdirentries_args *uap)
1496 {
1497 long base;
1498 int32_t base32;
1499 int error;
1500
1501 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base);
1502 if (error)
1503 return (error);
1504 if (uap->basep != NULL) {
1505 base32 = base;
1506 error = copyout(&base32, uap->basep, sizeof(int32_t));
1507 }
1508 return (error);
1509 }
1510
1511 #ifdef COMPAT_FREEBSD6
1512 /* versions with the 'int pad' argument */
1513 int
1514 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap)
1515 {
1516 struct pread_args ap;
1517
1518 ap.fd = uap->fd;
1519 ap.buf = uap->buf;
1520 ap.nbyte = uap->nbyte;
1521 ap.offset = PAIR32TO64(off_t,uap->offset);
1522 return (sys_pread(td, &ap));
1523 }
1524
1525 int
1526 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap)
1527 {
1528 struct pwrite_args ap;
1529
1530 ap.fd = uap->fd;
1531 ap.buf = uap->buf;
1532 ap.nbyte = uap->nbyte;
1533 ap.offset = PAIR32TO64(off_t,uap->offset);
1534 return (sys_pwrite(td, &ap));
1535 }
1536
1537 int
1538 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap)
1539 {
1540 int error;
1541 struct lseek_args ap;
1542 off_t pos;
1543
1544 ap.fd = uap->fd;
1545 ap.offset = PAIR32TO64(off_t,uap->offset);
1546 ap.whence = uap->whence;
1547 error = sys_lseek(td, &ap);
1548 /* Expand the quad return into two parts for eax and edx */
1549 pos = *(off_t *)(td->td_retval);
1550 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */
1551 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */
1552 return error;
1553 }
1554
1555 int
1556 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap)
1557 {
1558 struct truncate_args ap;
1559
1560 ap.path = uap->path;
1561 ap.length = PAIR32TO64(off_t,uap->length);
1562 return (sys_truncate(td, &ap));
1563 }
1564
1565 int
1566 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap)
1567 {
1568 struct ftruncate_args ap;
1569
1570 ap.fd = uap->fd;
1571 ap.length = PAIR32TO64(off_t,uap->length);
1572 return (sys_ftruncate(td, &ap));
1573 }
1574 #endif /* COMPAT_FREEBSD6 */
1575
1576 struct sf_hdtr32 {
1577 uint32_t headers;
1578 int hdr_cnt;
1579 uint32_t trailers;
1580 int trl_cnt;
1581 };
1582
1583 static int
1584 freebsd32_do_sendfile(struct thread *td,
1585 struct freebsd32_sendfile_args *uap, int compat)
1586 {
1587 struct sendfile_args ap;
1588 struct sf_hdtr32 hdtr32;
1589 struct sf_hdtr hdtr;
1590 struct uio *hdr_uio, *trl_uio;
1591 struct iovec32 *iov32;
1592 int error;
1593
1594 hdr_uio = trl_uio = NULL;
1595
1596 ap.fd = uap->fd;
1597 ap.s = uap->s;
1598 ap.offset = PAIR32TO64(off_t,uap->offset);
1599 ap.nbytes = uap->nbytes;
1600 ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */
1601 ap.sbytes = uap->sbytes;
1602 ap.flags = uap->flags;
1603
1604 if (uap->hdtr != NULL) {
1605 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32));
1606 if (error)
1607 goto out;
1608 PTRIN_CP(hdtr32, hdtr, headers);
1609 CP(hdtr32, hdtr, hdr_cnt);
1610 PTRIN_CP(hdtr32, hdtr, trailers);
1611 CP(hdtr32, hdtr, trl_cnt);
1612
1613 if (hdtr.headers != NULL) {
1614 iov32 = PTRIN(hdtr32.headers);
1615 error = freebsd32_copyinuio(iov32,
1616 hdtr32.hdr_cnt, &hdr_uio);
1617 if (error)
1618 goto out;
1619 }
1620 if (hdtr.trailers != NULL) {
1621 iov32 = PTRIN(hdtr32.trailers);
1622 error = freebsd32_copyinuio(iov32,
1623 hdtr32.trl_cnt, &trl_uio);
1624 if (error)
1625 goto out;
1626 }
1627 }
1628
1629 error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat);
1630 out:
1631 if (hdr_uio)
1632 free(hdr_uio, M_IOV);
1633 if (trl_uio)
1634 free(trl_uio, M_IOV);
1635 return (error);
1636 }
1637
1638 #ifdef COMPAT_FREEBSD4
1639 int
1640 freebsd4_freebsd32_sendfile(struct thread *td,
1641 struct freebsd4_freebsd32_sendfile_args *uap)
1642 {
1643 return (freebsd32_do_sendfile(td,
1644 (struct freebsd32_sendfile_args *)uap, 1));
1645 }
1646 #endif
1647
1648 int
1649 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap)
1650 {
1651
1652 return (freebsd32_do_sendfile(td, uap, 0));
1653 }
1654
1655 static void
1656 copy_stat(struct stat *in, struct stat32 *out)
1657 {
1658
1659 CP(*in, *out, st_dev);
1660 CP(*in, *out, st_ino);
1661 CP(*in, *out, st_mode);
1662 CP(*in, *out, st_nlink);
1663 CP(*in, *out, st_uid);
1664 CP(*in, *out, st_gid);
1665 CP(*in, *out, st_rdev);
1666 TS_CP(*in, *out, st_atim);
1667 TS_CP(*in, *out, st_mtim);
1668 TS_CP(*in, *out, st_ctim);
1669 CP(*in, *out, st_size);
1670 CP(*in, *out, st_blocks);
1671 CP(*in, *out, st_blksize);
1672 CP(*in, *out, st_flags);
1673 CP(*in, *out, st_gen);
1674 TS_CP(*in, *out, st_birthtim);
1675 }
1676
1677 #ifdef COMPAT_43
1678 static void
1679 copy_ostat(struct stat *in, struct ostat32 *out)
1680 {
1681
1682 CP(*in, *out, st_dev);
1683 CP(*in, *out, st_ino);
1684 CP(*in, *out, st_mode);
1685 CP(*in, *out, st_nlink);
1686 CP(*in, *out, st_uid);
1687 CP(*in, *out, st_gid);
1688 CP(*in, *out, st_rdev);
1689 CP(*in, *out, st_size);
1690 TS_CP(*in, *out, st_atim);
1691 TS_CP(*in, *out, st_mtim);
1692 TS_CP(*in, *out, st_ctim);
1693 CP(*in, *out, st_blksize);
1694 CP(*in, *out, st_blocks);
1695 CP(*in, *out, st_flags);
1696 CP(*in, *out, st_gen);
1697 }
1698 #endif
1699
1700 int
1701 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap)
1702 {
1703 struct stat sb;
1704 struct stat32 sb32;
1705 int error;
1706
1707 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb);
1708 if (error)
1709 return (error);
1710 copy_stat(&sb, &sb32);
1711 error = copyout(&sb32, uap->ub, sizeof (sb32));
1712 return (error);
1713 }
1714
1715 #ifdef COMPAT_43
1716 int
1717 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap)
1718 {
1719 struct stat sb;
1720 struct ostat32 sb32;
1721 int error;
1722
1723 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb);
1724 if (error)
1725 return (error);
1726 copy_ostat(&sb, &sb32);
1727 error = copyout(&sb32, uap->ub, sizeof (sb32));
1728 return (error);
1729 }
1730 #endif
1731
1732 int
1733 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap)
1734 {
1735 struct stat ub;
1736 struct stat32 ub32;
1737 int error;
1738
1739 error = kern_fstat(td, uap->fd, &ub);
1740 if (error)
1741 return (error);
1742 copy_stat(&ub, &ub32);
1743 error = copyout(&ub32, uap->ub, sizeof(ub32));
1744 return (error);
1745 }
1746
1747 #ifdef COMPAT_43
1748 int
1749 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap)
1750 {
1751 struct stat ub;
1752 struct ostat32 ub32;
1753 int error;
1754
1755 error = kern_fstat(td, uap->fd, &ub);
1756 if (error)
1757 return (error);
1758 copy_ostat(&ub, &ub32);
1759 error = copyout(&ub32, uap->ub, sizeof(ub32));
1760 return (error);
1761 }
1762 #endif
1763
1764 int
1765 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap)
1766 {
1767 struct stat ub;
1768 struct stat32 ub32;
1769 int error;
1770
1771 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub);
1772 if (error)
1773 return (error);
1774 copy_stat(&ub, &ub32);
1775 error = copyout(&ub32, uap->buf, sizeof(ub32));
1776 return (error);
1777 }
1778
1779 int
1780 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap)
1781 {
1782 struct stat sb;
1783 struct stat32 sb32;
1784 int error;
1785
1786 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb);
1787 if (error)
1788 return (error);
1789 copy_stat(&sb, &sb32);
1790 error = copyout(&sb32, uap->ub, sizeof (sb32));
1791 return (error);
1792 }
1793
1794 #ifdef COMPAT_43
1795 int
1796 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap)
1797 {
1798 struct stat sb;
1799 struct ostat32 sb32;
1800 int error;
1801
1802 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb);
1803 if (error)
1804 return (error);
1805 copy_ostat(&sb, &sb32);
1806 error = copyout(&sb32, uap->ub, sizeof (sb32));
1807 return (error);
1808 }
1809 #endif
1810
1811 int
1812 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap)
1813 {
1814 int error, name[CTL_MAXNAME];
1815 size_t j, oldlen;
1816
1817 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2)
1818 return (EINVAL);
1819 error = copyin(uap->name, name, uap->namelen * sizeof(int));
1820 if (error)
1821 return (error);
1822 if (uap->oldlenp)
1823 oldlen = fuword32(uap->oldlenp);
1824 else
1825 oldlen = 0;
1826 error = userland_sysctl(td, name, uap->namelen,
1827 uap->old, &oldlen, 1,
1828 uap->new, uap->newlen, &j, SCTL_MASK32);
1829 if (error && error != ENOMEM)
1830 return (error);
1831 if (uap->oldlenp)
1832 suword32(uap->oldlenp, j);
1833 return (0);
1834 }
1835
1836 int
1837 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap)
1838 {
1839 uint32_t version;
1840 int error;
1841 struct jail j;
1842
1843 error = copyin(uap->jail, &version, sizeof(uint32_t));
1844 if (error)
1845 return (error);
1846
1847 switch (version) {
1848 case 0:
1849 {
1850 /* FreeBSD single IPv4 jails. */
1851 struct jail32_v0 j32_v0;
1852
1853 bzero(&j, sizeof(struct jail));
1854 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0));
1855 if (error)
1856 return (error);
1857 CP(j32_v0, j, version);
1858 PTRIN_CP(j32_v0, j, path);
1859 PTRIN_CP(j32_v0, j, hostname);
1860 j.ip4s = j32_v0.ip_number;
1861 break;
1862 }
1863
1864 case 1:
1865 /*
1866 * Version 1 was used by multi-IPv4 jail implementations
1867 * that never made it into the official kernel.
1868 */
1869 return (EINVAL);
1870
1871 case 2: /* JAIL_API_VERSION */
1872 {
1873 /* FreeBSD multi-IPv4/IPv6,noIP jails. */
1874 struct jail32 j32;
1875
1876 error = copyin(uap->jail, &j32, sizeof(struct jail32));
1877 if (error)
1878 return (error);
1879 CP(j32, j, version);
1880 PTRIN_CP(j32, j, path);
1881 PTRIN_CP(j32, j, hostname);
1882 PTRIN_CP(j32, j, jailname);
1883 CP(j32, j, ip4s);
1884 CP(j32, j, ip6s);
1885 PTRIN_CP(j32, j, ip4);
1886 PTRIN_CP(j32, j, ip6);
1887 break;
1888 }
1889
1890 default:
1891 /* Sci-Fi jails are not supported, sorry. */
1892 return (EINVAL);
1893 }
1894 return (kern_jail(td, &j));
1895 }
1896
1897 int
1898 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap)
1899 {
1900 struct uio *auio;
1901 int error;
1902
1903 /* Check that we have an even number of iovecs. */
1904 if (uap->iovcnt & 1)
1905 return (EINVAL);
1906
1907 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
1908 if (error)
1909 return (error);
1910 error = kern_jail_set(td, auio, uap->flags);
1911 free(auio, M_IOV);
1912 return (error);
1913 }
1914
1915 int
1916 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap)
1917 {
1918 struct iovec32 iov32;
1919 struct uio *auio;
1920 int error, i;
1921
1922 /* Check that we have an even number of iovecs. */
1923 if (uap->iovcnt & 1)
1924 return (EINVAL);
1925
1926 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
1927 if (error)
1928 return (error);
1929 error = kern_jail_get(td, auio, uap->flags);
1930 if (error == 0)
1931 for (i = 0; i < uap->iovcnt; i++) {
1932 PTROUT_CP(auio->uio_iov[i], iov32, iov_base);
1933 CP(auio->uio_iov[i], iov32, iov_len);
1934 error = copyout(&iov32, uap->iovp + i, sizeof(iov32));
1935 if (error != 0)
1936 break;
1937 }
1938 free(auio, M_IOV);
1939 return (error);
1940 }
1941
1942 int
1943 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap)
1944 {
1945 struct sigaction32 s32;
1946 struct sigaction sa, osa, *sap;
1947 int error;
1948
1949 if (uap->act) {
1950 error = copyin(uap->act, &s32, sizeof(s32));
1951 if (error)
1952 return (error);
1953 sa.sa_handler = PTRIN(s32.sa_u);
1954 CP(s32, sa, sa_flags);
1955 CP(s32, sa, sa_mask);
1956 sap = &sa;
1957 } else
1958 sap = NULL;
1959 error = kern_sigaction(td, uap->sig, sap, &osa, 0);
1960 if (error == 0 && uap->oact != NULL) {
1961 s32.sa_u = PTROUT(osa.sa_handler);
1962 CP(osa, s32, sa_flags);
1963 CP(osa, s32, sa_mask);
1964 error = copyout(&s32, uap->oact, sizeof(s32));
1965 }
1966 return (error);
1967 }
1968
1969 #ifdef COMPAT_FREEBSD4
1970 int
1971 freebsd4_freebsd32_sigaction(struct thread *td,
1972 struct freebsd4_freebsd32_sigaction_args *uap)
1973 {
1974 struct sigaction32 s32;
1975 struct sigaction sa, osa, *sap;
1976 int error;
1977
1978 if (uap->act) {
1979 error = copyin(uap->act, &s32, sizeof(s32));
1980 if (error)
1981 return (error);
1982 sa.sa_handler = PTRIN(s32.sa_u);
1983 CP(s32, sa, sa_flags);
1984 CP(s32, sa, sa_mask);
1985 sap = &sa;
1986 } else
1987 sap = NULL;
1988 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4);
1989 if (error == 0 && uap->oact != NULL) {
1990 s32.sa_u = PTROUT(osa.sa_handler);
1991 CP(osa, s32, sa_flags);
1992 CP(osa, s32, sa_mask);
1993 error = copyout(&s32, uap->oact, sizeof(s32));
1994 }
1995 return (error);
1996 }
1997 #endif
1998
1999 #ifdef COMPAT_43
2000 struct osigaction32 {
2001 u_int32_t sa_u;
2002 osigset_t sa_mask;
2003 int sa_flags;
2004 };
2005
2006 #define ONSIG 32
2007
2008 int
2009 ofreebsd32_sigaction(struct thread *td,
2010 struct ofreebsd32_sigaction_args *uap)
2011 {
2012 struct osigaction32 s32;
2013 struct sigaction sa, osa, *sap;
2014 int error;
2015
2016 if (uap->signum <= 0 || uap->signum >= ONSIG)
2017 return (EINVAL);
2018
2019 if (uap->nsa) {
2020 error = copyin(uap->nsa, &s32, sizeof(s32));
2021 if (error)
2022 return (error);
2023 sa.sa_handler = PTRIN(s32.sa_u);
2024 CP(s32, sa, sa_flags);
2025 OSIG2SIG(s32.sa_mask, sa.sa_mask);
2026 sap = &sa;
2027 } else
2028 sap = NULL;
2029 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET);
2030 if (error == 0 && uap->osa != NULL) {
2031 s32.sa_u = PTROUT(osa.sa_handler);
2032 CP(osa, s32, sa_flags);
2033 SIG2OSIG(osa.sa_mask, s32.sa_mask);
2034 error = copyout(&s32, uap->osa, sizeof(s32));
2035 }
2036 return (error);
2037 }
2038
2039 int
2040 ofreebsd32_sigprocmask(struct thread *td,
2041 struct ofreebsd32_sigprocmask_args *uap)
2042 {
2043 sigset_t set, oset;
2044 int error;
2045
2046 OSIG2SIG(uap->mask, set);
2047 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD);
2048 SIG2OSIG(oset, td->td_retval[0]);
2049 return (error);
2050 }
2051
2052 int
2053 ofreebsd32_sigpending(struct thread *td,
2054 struct ofreebsd32_sigpending_args *uap)
2055 {
2056 struct proc *p = td->td_proc;
2057 sigset_t siglist;
2058
2059 PROC_LOCK(p);
2060 siglist = p->p_siglist;
2061 SIGSETOR(siglist, td->td_siglist);
2062 PROC_UNLOCK(p);
2063 SIG2OSIG(siglist, td->td_retval[0]);
2064 return (0);
2065 }
2066
2067 struct sigvec32 {
2068 u_int32_t sv_handler;
2069 int sv_mask;
2070 int sv_flags;
2071 };
2072
2073 int
2074 ofreebsd32_sigvec(struct thread *td,
2075 struct ofreebsd32_sigvec_args *uap)
2076 {
2077 struct sigvec32 vec;
2078 struct sigaction sa, osa, *sap;
2079 int error;
2080
2081 if (uap->signum <= 0 || uap->signum >= ONSIG)
2082 return (EINVAL);
2083
2084 if (uap->nsv) {
2085 error = copyin(uap->nsv, &vec, sizeof(vec));
2086 if (error)
2087 return (error);
2088 sa.sa_handler = PTRIN(vec.sv_handler);
2089 OSIG2SIG(vec.sv_mask, sa.sa_mask);
2090 sa.sa_flags = vec.sv_flags;
2091 sa.sa_flags ^= SA_RESTART;
2092 sap = &sa;
2093 } else
2094 sap = NULL;
2095 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET);
2096 if (error == 0 && uap->osv != NULL) {
2097 vec.sv_handler = PTROUT(osa.sa_handler);
2098 SIG2OSIG(osa.sa_mask, vec.sv_mask);
2099 vec.sv_flags = osa.sa_flags;
2100 vec.sv_flags &= ~SA_NOCLDWAIT;
2101 vec.sv_flags ^= SA_RESTART;
2102 error = copyout(&vec, uap->osv, sizeof(vec));
2103 }
2104 return (error);
2105 }
2106
2107 int
2108 ofreebsd32_sigblock(struct thread *td,
2109 struct ofreebsd32_sigblock_args *uap)
2110 {
2111 sigset_t set, oset;
2112
2113 OSIG2SIG(uap->mask, set);
2114 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0);
2115 SIG2OSIG(oset, td->td_retval[0]);
2116 return (0);
2117 }
2118
2119 int
2120 ofreebsd32_sigsetmask(struct thread *td,
2121 struct ofreebsd32_sigsetmask_args *uap)
2122 {
2123 sigset_t set, oset;
2124
2125 OSIG2SIG(uap->mask, set);
2126 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0);
2127 SIG2OSIG(oset, td->td_retval[0]);
2128 return (0);
2129 }
2130
2131 int
2132 ofreebsd32_sigsuspend(struct thread *td,
2133 struct ofreebsd32_sigsuspend_args *uap)
2134 {
2135 sigset_t mask;
2136
2137 OSIG2SIG(uap->mask, mask);
2138 return (kern_sigsuspend(td, mask));
2139 }
2140
2141 struct sigstack32 {
2142 u_int32_t ss_sp;
2143 int ss_onstack;
2144 };
2145
2146 int
2147 ofreebsd32_sigstack(struct thread *td,
2148 struct ofreebsd32_sigstack_args *uap)
2149 {
2150 struct sigstack32 s32;
2151 struct sigstack nss, oss;
2152 int error = 0, unss;
2153
2154 if (uap->nss != NULL) {
2155 error = copyin(uap->nss, &s32, sizeof(s32));
2156 if (error)
2157 return (error);
2158 nss.ss_sp = PTRIN(s32.ss_sp);
2159 CP(s32, nss, ss_onstack);
2160 unss = 1;
2161 } else {
2162 unss = 0;
2163 }
2164 oss.ss_sp = td->td_sigstk.ss_sp;
2165 oss.ss_onstack = sigonstack(cpu_getstack(td));
2166 if (unss) {
2167 td->td_sigstk.ss_sp = nss.ss_sp;
2168 td->td_sigstk.ss_size = 0;
2169 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK);
2170 td->td_pflags |= TDP_ALTSTACK;
2171 }
2172 if (uap->oss != NULL) {
2173 s32.ss_sp = PTROUT(oss.ss_sp);
2174 CP(oss, s32, ss_onstack);
2175 error = copyout(&s32, uap->oss, sizeof(s32));
2176 }
2177 return (error);
2178 }
2179 #endif
2180
2181 int
2182 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap)
2183 {
2184 struct timespec32 rmt32, rqt32;
2185 struct timespec rmt, rqt;
2186 int error;
2187
2188 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32));
2189 if (error)
2190 return (error);
2191
2192 CP(rqt32, rqt, tv_sec);
2193 CP(rqt32, rqt, tv_nsec);
2194
2195 if (uap->rmtp &&
2196 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE))
2197 return (EFAULT);
2198 error = kern_nanosleep(td, &rqt, &rmt);
2199 if (error && uap->rmtp) {
2200 int error2;
2201
2202 CP(rmt, rmt32, tv_sec);
2203 CP(rmt, rmt32, tv_nsec);
2204
2205 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32));
2206 if (error2)
2207 error = error2;
2208 }
2209 return (error);
2210 }
2211
2212 int
2213 freebsd32_clock_gettime(struct thread *td,
2214 struct freebsd32_clock_gettime_args *uap)
2215 {
2216 struct timespec ats;
2217 struct timespec32 ats32;
2218 int error;
2219
2220 error = kern_clock_gettime(td, uap->clock_id, &ats);
2221 if (error == 0) {
2222 CP(ats, ats32, tv_sec);
2223 CP(ats, ats32, tv_nsec);
2224 error = copyout(&ats32, uap->tp, sizeof(ats32));
2225 }
2226 return (error);
2227 }
2228
2229 int
2230 freebsd32_clock_settime(struct thread *td,
2231 struct freebsd32_clock_settime_args *uap)
2232 {
2233 struct timespec ats;
2234 struct timespec32 ats32;
2235 int error;
2236
2237 error = copyin(uap->tp, &ats32, sizeof(ats32));
2238 if (error)
2239 return (error);
2240 CP(ats32, ats, tv_sec);
2241 CP(ats32, ats, tv_nsec);
2242
2243 return (kern_clock_settime(td, uap->clock_id, &ats));
2244 }
2245
2246 int
2247 freebsd32_clock_getres(struct thread *td,
2248 struct freebsd32_clock_getres_args *uap)
2249 {
2250 struct timespec ts;
2251 struct timespec32 ts32;
2252 int error;
2253
2254 if (uap->tp == NULL)
2255 return (0);
2256 error = kern_clock_getres(td, uap->clock_id, &ts);
2257 if (error == 0) {
2258 CP(ts, ts32, tv_sec);
2259 CP(ts, ts32, tv_nsec);
2260 error = copyout(&ts32, uap->tp, sizeof(ts32));
2261 }
2262 return (error);
2263 }
2264
2265 int
2266 freebsd32_thr_new(struct thread *td,
2267 struct freebsd32_thr_new_args *uap)
2268 {
2269 struct thr_param32 param32;
2270 struct thr_param param;
2271 int error;
2272
2273 if (uap->param_size < 0 ||
2274 uap->param_size > sizeof(struct thr_param32))
2275 return (EINVAL);
2276 bzero(¶m, sizeof(struct thr_param));
2277 bzero(¶m32, sizeof(struct thr_param32));
2278 error = copyin(uap->param, ¶m32, uap->param_size);
2279 if (error != 0)
2280 return (error);
2281 param.start_func = PTRIN(param32.start_func);
2282 param.arg = PTRIN(param32.arg);
2283 param.stack_base = PTRIN(param32.stack_base);
2284 param.stack_size = param32.stack_size;
2285 param.tls_base = PTRIN(param32.tls_base);
2286 param.tls_size = param32.tls_size;
2287 param.child_tid = PTRIN(param32.child_tid);
2288 param.parent_tid = PTRIN(param32.parent_tid);
2289 param.flags = param32.flags;
2290 param.rtp = PTRIN(param32.rtp);
2291 param.spare[0] = PTRIN(param32.spare[0]);
2292 param.spare[1] = PTRIN(param32.spare[1]);
2293 param.spare[2] = PTRIN(param32.spare[2]);
2294
2295 return (kern_thr_new(td, ¶m));
2296 }
2297
2298 int
2299 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap)
2300 {
2301 struct timespec32 ts32;
2302 struct timespec ts, *tsp;
2303 int error;
2304
2305 error = 0;
2306 tsp = NULL;
2307 if (uap->timeout != NULL) {
2308 error = copyin((const void *)uap->timeout, (void *)&ts32,
2309 sizeof(struct timespec32));
2310 if (error != 0)
2311 return (error);
2312 ts.tv_sec = ts32.tv_sec;
2313 ts.tv_nsec = ts32.tv_nsec;
2314 tsp = &ts;
2315 }
2316 return (kern_thr_suspend(td, tsp));
2317 }
2318
2319 void
2320 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst)
2321 {
2322 bzero(dst, sizeof(*dst));
2323 dst->si_signo = src->si_signo;
2324 dst->si_errno = src->si_errno;
2325 dst->si_code = src->si_code;
2326 dst->si_pid = src->si_pid;
2327 dst->si_uid = src->si_uid;
2328 dst->si_status = src->si_status;
2329 dst->si_addr = (uintptr_t)src->si_addr;
2330 dst->si_value.sigval_int = src->si_value.sival_int;
2331 dst->si_timerid = src->si_timerid;
2332 dst->si_overrun = src->si_overrun;
2333 }
2334
2335 int
2336 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap)
2337 {
2338 struct timespec32 ts32;
2339 struct timespec ts;
2340 struct timespec *timeout;
2341 sigset_t set;
2342 ksiginfo_t ksi;
2343 struct siginfo32 si32;
2344 int error;
2345
2346 if (uap->timeout) {
2347 error = copyin(uap->timeout, &ts32, sizeof(ts32));
2348 if (error)
2349 return (error);
2350 ts.tv_sec = ts32.tv_sec;
2351 ts.tv_nsec = ts32.tv_nsec;
2352 timeout = &ts;
2353 } else
2354 timeout = NULL;
2355
2356 error = copyin(uap->set, &set, sizeof(set));
2357 if (error)
2358 return (error);
2359
2360 error = kern_sigtimedwait(td, set, &ksi, timeout);
2361 if (error)
2362 return (error);
2363
2364 if (uap->info) {
2365 siginfo_to_siginfo32(&ksi.ksi_info, &si32);
2366 error = copyout(&si32, uap->info, sizeof(struct siginfo32));
2367 }
2368
2369 if (error == 0)
2370 td->td_retval[0] = ksi.ksi_signo;
2371 return (error);
2372 }
2373
2374 /*
2375 * MPSAFE
2376 */
2377 int
2378 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap)
2379 {
2380 ksiginfo_t ksi;
2381 struct siginfo32 si32;
2382 sigset_t set;
2383 int error;
2384
2385 error = copyin(uap->set, &set, sizeof(set));
2386 if (error)
2387 return (error);
2388
2389 error = kern_sigtimedwait(td, set, &ksi, NULL);
2390 if (error)
2391 return (error);
2392
2393 if (uap->info) {
2394 siginfo_to_siginfo32(&ksi.ksi_info, &si32);
2395 error = copyout(&si32, uap->info, sizeof(struct siginfo32));
2396 }
2397 if (error == 0)
2398 td->td_retval[0] = ksi.ksi_signo;
2399 return (error);
2400 }
2401
2402 int
2403 freebsd32_cpuset_setid(struct thread *td,
2404 struct freebsd32_cpuset_setid_args *uap)
2405 {
2406 struct cpuset_setid_args ap;
2407
2408 ap.which = uap->which;
2409 ap.id = PAIR32TO64(id_t,uap->id);
2410 ap.setid = uap->setid;
2411
2412 return (sys_cpuset_setid(td, &ap));
2413 }
2414
2415 int
2416 freebsd32_cpuset_getid(struct thread *td,
2417 struct freebsd32_cpuset_getid_args *uap)
2418 {
2419 struct cpuset_getid_args ap;
2420
2421 ap.level = uap->level;
2422 ap.which = uap->which;
2423 ap.id = PAIR32TO64(id_t,uap->id);
2424 ap.setid = uap->setid;
2425
2426 return (sys_cpuset_getid(td, &ap));
2427 }
2428
2429 int
2430 freebsd32_cpuset_getaffinity(struct thread *td,
2431 struct freebsd32_cpuset_getaffinity_args *uap)
2432 {
2433 struct cpuset_getaffinity_args ap;
2434
2435 ap.level = uap->level;
2436 ap.which = uap->which;
2437 ap.id = PAIR32TO64(id_t,uap->id);
2438 ap.cpusetsize = uap->cpusetsize;
2439 ap.mask = uap->mask;
2440
2441 return (sys_cpuset_getaffinity(td, &ap));
2442 }
2443
2444 int
2445 freebsd32_cpuset_setaffinity(struct thread *td,
2446 struct freebsd32_cpuset_setaffinity_args *uap)
2447 {
2448 struct cpuset_setaffinity_args ap;
2449
2450 ap.level = uap->level;
2451 ap.which = uap->which;
2452 ap.id = PAIR32TO64(id_t,uap->id);
2453 ap.cpusetsize = uap->cpusetsize;
2454 ap.mask = uap->mask;
2455
2456 return (sys_cpuset_setaffinity(td, &ap));
2457 }
2458
2459 int
2460 freebsd32_nmount(struct thread *td,
2461 struct freebsd32_nmount_args /* {
2462 struct iovec *iovp;
2463 unsigned int iovcnt;
2464 int flags;
2465 } */ *uap)
2466 {
2467 struct uio *auio;
2468 int error;
2469
2470 AUDIT_ARG_FFLAGS(uap->flags);
2471
2472 /*
2473 * Filter out MNT_ROOTFS. We do not want clients of nmount() in
2474 * userspace to set this flag, but we must filter it out if we want
2475 * MNT_UPDATE on the root file system to work.
2476 * MNT_ROOTFS should only be set by the kernel when mounting its
2477 * root file system.
2478 */
2479 uap->flags &= ~MNT_ROOTFS;
2480
2481 /*
2482 * check that we have an even number of iovec's
2483 * and that we have at least two options.
2484 */
2485 if ((uap->iovcnt & 1) || (uap->iovcnt < 4))
2486 return (EINVAL);
2487
2488 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
2489 if (error)
2490 return (error);
2491 error = vfs_donmount(td, uap->flags, auio);
2492
2493 free(auio, M_IOV);
2494 return error;
2495 }
2496
2497 #if 0
2498 int
2499 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap)
2500 {
2501 struct yyy32 *p32, s32;
2502 struct yyy *p = NULL, s;
2503 struct xxx_arg ap;
2504 int error;
2505
2506 if (uap->zzz) {
2507 error = copyin(uap->zzz, &s32, sizeof(s32));
2508 if (error)
2509 return (error);
2510 /* translate in */
2511 p = &s;
2512 }
2513 error = kern_xxx(td, p);
2514 if (error)
2515 return (error);
2516 if (uap->zzz) {
2517 /* translate out */
2518 error = copyout(&s32, p32, sizeof(s32));
2519 }
2520 return (error);
2521 }
2522 #endif
2523
2524 int
2525 syscall32_register(int *offset, struct sysent *new_sysent,
2526 struct sysent *old_sysent)
2527 {
2528 if (*offset == NO_SYSCALL) {
2529 int i;
2530
2531 for (i = 1; i < SYS_MAXSYSCALL; ++i)
2532 if (freebsd32_sysent[i].sy_call ==
2533 (sy_call_t *)lkmnosys)
2534 break;
2535 if (i == SYS_MAXSYSCALL)
2536 return (ENFILE);
2537 *offset = i;
2538 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL)
2539 return (EINVAL);
2540 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys &&
2541 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys)
2542 return (EEXIST);
2543
2544 *old_sysent = freebsd32_sysent[*offset];
2545 freebsd32_sysent[*offset] = *new_sysent;
2546 return 0;
2547 }
2548
2549 int
2550 syscall32_deregister(int *offset, struct sysent *old_sysent)
2551 {
2552
2553 if (*offset)
2554 freebsd32_sysent[*offset] = *old_sysent;
2555 return 0;
2556 }
2557
2558 int
2559 syscall32_module_handler(struct module *mod, int what, void *arg)
2560 {
2561 struct syscall_module_data *data = (struct syscall_module_data*)arg;
2562 modspecific_t ms;
2563 int error;
2564
2565 switch (what) {
2566 case MOD_LOAD:
2567 error = syscall32_register(data->offset, data->new_sysent,
2568 &data->old_sysent);
2569 if (error) {
2570 /* Leave a mark so we know to safely unload below. */
2571 data->offset = NULL;
2572 return error;
2573 }
2574 ms.intval = *data->offset;
2575 MOD_XLOCK;
2576 module_setspecific(mod, &ms);
2577 MOD_XUNLOCK;
2578 if (data->chainevh)
2579 error = data->chainevh(mod, what, data->chainarg);
2580 return (error);
2581 case MOD_UNLOAD:
2582 /*
2583 * MOD_LOAD failed, so just return without calling the
2584 * chained handler since we didn't pass along the MOD_LOAD
2585 * event.
2586 */
2587 if (data->offset == NULL)
2588 return (0);
2589 if (data->chainevh) {
2590 error = data->chainevh(mod, what, data->chainarg);
2591 if (error)
2592 return (error);
2593 }
2594 error = syscall32_deregister(data->offset, &data->old_sysent);
2595 return (error);
2596 default:
2597 error = EOPNOTSUPP;
2598 if (data->chainevh)
2599 error = data->chainevh(mod, what, data->chainarg);
2600 return (error);
2601 }
2602 }
2603
2604 int
2605 syscall32_helper_register(struct syscall_helper_data *sd)
2606 {
2607 struct syscall_helper_data *sd1;
2608 int error;
2609
2610 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) {
2611 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent,
2612 &sd1->old_sysent);
2613 if (error != 0) {
2614 syscall32_helper_unregister(sd);
2615 return (error);
2616 }
2617 sd1->registered = 1;
2618 }
2619 return (0);
2620 }
2621
2622 int
2623 syscall32_helper_unregister(struct syscall_helper_data *sd)
2624 {
2625 struct syscall_helper_data *sd1;
2626
2627 for (sd1 = sd; sd1->registered != 0; sd1++) {
2628 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent);
2629 sd1->registered = 0;
2630 }
2631 return (0);
2632 }
2633
2634 register_t *
2635 freebsd32_copyout_strings(struct image_params *imgp)
2636 {
2637 int argc, envc, i;
2638 u_int32_t *vectp;
2639 char *stringp, *destp;
2640 u_int32_t *stack_base;
2641 struct freebsd32_ps_strings *arginfo;
2642 char canary[sizeof(long) * 8];
2643 int32_t pagesizes32[MAXPAGESIZES];
2644 size_t execpath_len;
2645 int szsigcode;
2646
2647 /*
2648 * Calculate string base and vector table pointers.
2649 * Also deal with signal trampoline code for this exec type.
2650 */
2651 if (imgp->execpath != NULL && imgp->auxargs != NULL)
2652 execpath_len = strlen(imgp->execpath) + 1;
2653 else
2654 execpath_len = 0;
2655 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent->
2656 sv_psstrings;
2657 if (imgp->proc->p_sysent->sv_sigcode_base == 0)
2658 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode);
2659 else
2660 szsigcode = 0;
2661 destp = (caddr_t)arginfo - szsigcode - SPARE_USRSPACE -
2662 roundup(execpath_len, sizeof(char *)) -
2663 roundup(sizeof(canary), sizeof(char *)) -
2664 roundup(sizeof(pagesizes32), sizeof(char *)) -
2665 roundup((ARG_MAX - imgp->args->stringspace), sizeof(char *));
2666
2667 /*
2668 * install sigcode
2669 */
2670 if (szsigcode != 0)
2671 copyout(imgp->proc->p_sysent->sv_sigcode,
2672 ((caddr_t)arginfo - szsigcode), szsigcode);
2673
2674 /*
2675 * Copy the image path for the rtld.
2676 */
2677 if (execpath_len != 0) {
2678 imgp->execpathp = (uintptr_t)arginfo - szsigcode - execpath_len;
2679 copyout(imgp->execpath, (void *)imgp->execpathp,
2680 execpath_len);
2681 }
2682
2683 /*
2684 * Prepare the canary for SSP.
2685 */
2686 arc4rand(canary, sizeof(canary), 0);
2687 imgp->canary = (uintptr_t)arginfo - szsigcode - execpath_len -
2688 sizeof(canary);
2689 copyout(canary, (void *)imgp->canary, sizeof(canary));
2690 imgp->canarylen = sizeof(canary);
2691
2692 /*
2693 * Prepare the pagesizes array.
2694 */
2695 for (i = 0; i < MAXPAGESIZES; i++)
2696 pagesizes32[i] = (uint32_t)pagesizes[i];
2697 imgp->pagesizes = (uintptr_t)arginfo - szsigcode - execpath_len -
2698 roundup(sizeof(canary), sizeof(char *)) - sizeof(pagesizes32);
2699 copyout(pagesizes32, (void *)imgp->pagesizes, sizeof(pagesizes32));
2700 imgp->pagesizeslen = sizeof(pagesizes32);
2701
2702 /*
2703 * If we have a valid auxargs ptr, prepare some room
2704 * on the stack.
2705 */
2706 if (imgp->auxargs) {
2707 /*
2708 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for
2709 * lower compatibility.
2710 */
2711 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size
2712 : (AT_COUNT * 2);
2713 /*
2714 * The '+ 2' is for the null pointers at the end of each of
2715 * the arg and env vector sets,and imgp->auxarg_size is room
2716 * for argument of Runtime loader.
2717 */
2718 vectp = (u_int32_t *) (destp - (imgp->args->argc +
2719 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) *
2720 sizeof(u_int32_t));
2721 } else
2722 /*
2723 * The '+ 2' is for the null pointers at the end of each of
2724 * the arg and env vector sets
2725 */
2726 vectp = (u_int32_t *)
2727 (destp - (imgp->args->argc + imgp->args->envc + 2) * sizeof(u_int32_t));
2728
2729 /*
2730 * vectp also becomes our initial stack base
2731 */
2732 stack_base = vectp;
2733
2734 stringp = imgp->args->begin_argv;
2735 argc = imgp->args->argc;
2736 envc = imgp->args->envc;
2737 /*
2738 * Copy out strings - arguments and environment.
2739 */
2740 copyout(stringp, destp, ARG_MAX - imgp->args->stringspace);
2741
2742 /*
2743 * Fill in "ps_strings" struct for ps, w, etc.
2744 */
2745 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp);
2746 suword32(&arginfo->ps_nargvstr, argc);
2747
2748 /*
2749 * Fill in argument portion of vector table.
2750 */
2751 for (; argc > 0; --argc) {
2752 suword32(vectp++, (u_int32_t)(intptr_t)destp);
2753 while (*stringp++ != 0)
2754 destp++;
2755 destp++;
2756 }
2757
2758 /* a null vector table pointer separates the argp's from the envp's */
2759 suword32(vectp++, 0);
2760
2761 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp);
2762 suword32(&arginfo->ps_nenvstr, envc);
2763
2764 /*
2765 * Fill in environment portion of vector table.
2766 */
2767 for (; envc > 0; --envc) {
2768 suword32(vectp++, (u_int32_t)(intptr_t)destp);
2769 while (*stringp++ != 0)
2770 destp++;
2771 destp++;
2772 }
2773
2774 /* end of vector table is a null pointer */
2775 suword32(vectp, 0);
2776
2777 return ((register_t *)stack_base);
2778 }
2779
2780 int
2781 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap)
2782 {
2783 struct kld_file_stat stat;
2784 struct kld32_file_stat stat32;
2785 int error, version;
2786
2787 if ((error = copyin(&uap->stat->version, &version, sizeof(version)))
2788 != 0)
2789 return (error);
2790 if (version != sizeof(struct kld32_file_stat_1) &&
2791 version != sizeof(struct kld32_file_stat))
2792 return (EINVAL);
2793
2794 error = kern_kldstat(td, uap->fileid, &stat);
2795 if (error != 0)
2796 return (error);
2797
2798 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name));
2799 CP(stat, stat32, refs);
2800 CP(stat, stat32, id);
2801 PTROUT_CP(stat, stat32, address);
2802 CP(stat, stat32, size);
2803 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname));
2804 return (copyout(&stat32, uap->stat, version));
2805 }
2806
2807 int
2808 freebsd32_posix_fallocate(struct thread *td,
2809 struct freebsd32_posix_fallocate_args *uap)
2810 {
2811 struct posix_fallocate_args ap;
2812
2813 ap.fd = uap->fd;
2814 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32));
2815 ap.len = (uap->lenlo | ((off_t)uap->lenhi << 32));
2816 return (sys_posix_fallocate(td, &ap));
2817 }
Cache object: e5a3cb56ad0771977ea24ae63de8557b
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