Deleted Added
full compact
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: head/sys/compat/freebsd32/freebsd32_misc.c 227502 2011-11-14 18:00:15Z jhb $");
28__FBSDID("$FreeBSD: head/sys/compat/freebsd32/freebsd32_misc.c 230249 2012-01-17 01:08:01Z mckusick $");
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
107CTASSERT(sizeof(struct timeval32) == 8);
108CTASSERT(sizeof(struct timespec32) == 8);
109CTASSERT(sizeof(struct itimerval32) == 16);
110CTASSERT(sizeof(struct statfs32) == 256);
111CTASSERT(sizeof(struct rusage32) == 72);
112CTASSERT(sizeof(struct sigaltstack32) == 12);
113CTASSERT(sizeof(struct kevent32) == 20);
114CTASSERT(sizeof(struct iovec32) == 8);
115CTASSERT(sizeof(struct msghdr32) == 28);
116CTASSERT(sizeof(struct stat32) == 96);
117CTASSERT(sizeof(struct sigaction32) == 24);
118
119static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count);
120static 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
132void
133freebsd32_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
154int
155freebsd32_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
178static void
179copy_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
209int
210freebsd4_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
236int
237freebsd32_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 */
268int
269freebsd32_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
357err_exit:
358 exec_free_args(args);
359 return (error);
360}
361
362int
363freebsd32_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
375int
376freebsd32_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__
391static int
392freebsd32_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
439int
440freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap)
441{
442 struct mprotect_args ap;
443
444 ap.addr = PTRIN(uap->addr);
445 ap.len = uap->len;
446 ap.prot = uap->prot;
447#if defined(__amd64__) || defined(__ia64__)
448 if (i386_read_exec && (ap.prot & PROT_READ) != 0)
449 ap.prot |= PROT_EXEC;
450#endif
451 return (sys_mprotect(td, &ap));
452}
453
454int
455freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap)
456{
457 struct mmap_args ap;
458 vm_offset_t addr = (vm_offset_t) uap->addr;
459 vm_size_t len = uap->len;
460 int prot = uap->prot;
461 int flags = uap->flags;
462 int fd = uap->fd;
463 off_t pos = PAIR32TO64(off_t,uap->pos);
464#ifdef __ia64__
465 vm_size_t pageoff;
466 int error;
467
468 /*
469 * Attempt to handle page size hassles.
470 */
471 pageoff = (pos & PAGE_MASK);
472 if (flags & MAP_FIXED) {
473 vm_offset_t start, end;
474 start = addr;
475 end = addr + len;
476
477 if (start != trunc_page(start)) {
478 error = freebsd32_mmap_partial(td, start,
479 round_page(start), prot,
480 fd, pos);
481 if (fd != -1)
482 pos += round_page(start) - start;
483 start = round_page(start);
484 }
485 if (end != round_page(end)) {
486 vm_offset_t t = trunc_page(end);
487 error = freebsd32_mmap_partial(td, t, end,
488 prot, fd,
489 pos + t - start);
490 end = trunc_page(end);
491 }
492 if (end > start && fd != -1 && (pos & PAGE_MASK)) {
493 /*
494 * We can't map this region at all. The specified
495 * address doesn't have the same alignment as the file
496 * position. Fake the mapping by simply reading the
497 * entire region into memory. First we need to make
498 * sure the region exists.
499 */
500 vm_map_t map;
501 struct pread_args r;
502 int rv;
503
504 prot |= VM_PROT_WRITE;
505 map = &td->td_proc->p_vmspace->vm_map;
506 rv = vm_map_remove(map, start, end);
507 if (rv != KERN_SUCCESS)
508 return (EINVAL);
509 rv = vm_map_find(map, 0, 0,
510 &start, end - start, FALSE,
511 prot, VM_PROT_ALL, 0);
512 if (rv != KERN_SUCCESS)
513 return (EINVAL);
514 r.fd = fd;
515 r.buf = (void *) start;
516 r.nbyte = end - start;
517 r.offset = pos;
518 error = sys_pread(td, &r);
519 if (error)
520 return (error);
521
522 td->td_retval[0] = addr;
523 return (0);
524 }
525 if (end == start) {
526 /*
527 * After dealing with the ragged ends, there
528 * might be none left.
529 */
530 td->td_retval[0] = addr;
531 return (0);
532 }
533 addr = start;
534 len = end - start;
535 }
536#endif
537
538#if defined(__amd64__) || defined(__ia64__)
539 if (i386_read_exec && (prot & PROT_READ))
540 prot |= PROT_EXEC;
541#endif
542
543 ap.addr = (void *) addr;
544 ap.len = len;
545 ap.prot = prot;
546 ap.flags = flags;
547 ap.fd = fd;
548 ap.pos = pos;
549
550 return (sys_mmap(td, &ap));
551}
552
553#ifdef COMPAT_FREEBSD6
554int
555freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap)
556{
557 struct freebsd32_mmap_args ap;
558
559 ap.addr = uap->addr;
560 ap.len = uap->len;
561 ap.prot = uap->prot;
562 ap.flags = uap->flags;
563 ap.fd = uap->fd;
564 ap.pos1 = uap->pos1;
565 ap.pos2 = uap->pos2;
566
567 return (freebsd32_mmap(td, &ap));
568}
569#endif
570
571int
572freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap)
573{
574 struct itimerval itv, oitv, *itvp;
575 struct itimerval32 i32;
576 int error;
577
578 if (uap->itv != NULL) {
579 error = copyin(uap->itv, &i32, sizeof(i32));
580 if (error)
581 return (error);
582 TV_CP(i32, itv, it_interval);
583 TV_CP(i32, itv, it_value);
584 itvp = &itv;
585 } else
586 itvp = NULL;
587 error = kern_setitimer(td, uap->which, itvp, &oitv);
588 if (error || uap->oitv == NULL)
589 return (error);
590 TV_CP(oitv, i32, it_interval);
591 TV_CP(oitv, i32, it_value);
592 return (copyout(&i32, uap->oitv, sizeof(i32)));
593}
594
595int
596freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap)
597{
598 struct itimerval itv;
599 struct itimerval32 i32;
600 int error;
601
602 error = kern_getitimer(td, uap->which, &itv);
603 if (error || uap->itv == NULL)
604 return (error);
605 TV_CP(itv, i32, it_interval);
606 TV_CP(itv, i32, it_value);
607 return (copyout(&i32, uap->itv, sizeof(i32)));
608}
609
610int
611freebsd32_select(struct thread *td, struct freebsd32_select_args *uap)
612{
613 struct timeval32 tv32;
614 struct timeval tv, *tvp;
615 int error;
616
617 if (uap->tv != NULL) {
618 error = copyin(uap->tv, &tv32, sizeof(tv32));
619 if (error)
620 return (error);
621 CP(tv32, tv, tv_sec);
622 CP(tv32, tv, tv_usec);
623 tvp = &tv;
624 } else
625 tvp = NULL;
626 /*
627 * XXX Do pointers need PTRIN()?
628 */
629 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp,
630 sizeof(int32_t) * 8));
631}
632
633int
634freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap)
635{
636 struct timespec32 ts32;
637 struct timespec ts;
638 struct timeval tv, *tvp;
639 sigset_t set, *uset;
640 int error;
641
642 if (uap->ts != NULL) {
643 error = copyin(uap->ts, &ts32, sizeof(ts32));
644 if (error != 0)
645 return (error);
646 CP(ts32, ts, tv_sec);
647 CP(ts32, ts, tv_nsec);
648 TIMESPEC_TO_TIMEVAL(&tv, &ts);
649 tvp = &tv;
650 } else
651 tvp = NULL;
652 if (uap->sm != NULL) {
653 error = copyin(uap->sm, &set, sizeof(set));
654 if (error != 0)
655 return (error);
656 uset = &set;
657 } else
658 uset = NULL;
659 /*
660 * XXX Do pointers need PTRIN()?
661 */
662 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp,
663 uset, sizeof(int32_t) * 8);
664 return (error);
665}
666
667/*
668 * Copy 'count' items into the destination list pointed to by uap->eventlist.
669 */
670static int
671freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count)
672{
673 struct freebsd32_kevent_args *uap;
674 struct kevent32 ks32[KQ_NEVENTS];
675 int i, error = 0;
676
677 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
678 uap = (struct freebsd32_kevent_args *)arg;
679
680 for (i = 0; i < count; i++) {
681 CP(kevp[i], ks32[i], ident);
682 CP(kevp[i], ks32[i], filter);
683 CP(kevp[i], ks32[i], flags);
684 CP(kevp[i], ks32[i], fflags);
685 CP(kevp[i], ks32[i], data);
686 PTROUT_CP(kevp[i], ks32[i], udata);
687 }
688 error = copyout(ks32, uap->eventlist, count * sizeof *ks32);
689 if (error == 0)
690 uap->eventlist += count;
691 return (error);
692}
693
694/*
695 * Copy 'count' items from the list pointed to by uap->changelist.
696 */
697static int
698freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count)
699{
700 struct freebsd32_kevent_args *uap;
701 struct kevent32 ks32[KQ_NEVENTS];
702 int i, error = 0;
703
704 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
705 uap = (struct freebsd32_kevent_args *)arg;
706
707 error = copyin(uap->changelist, ks32, count * sizeof *ks32);
708 if (error)
709 goto done;
710 uap->changelist += count;
711
712 for (i = 0; i < count; i++) {
713 CP(ks32[i], kevp[i], ident);
714 CP(ks32[i], kevp[i], filter);
715 CP(ks32[i], kevp[i], flags);
716 CP(ks32[i], kevp[i], fflags);
717 CP(ks32[i], kevp[i], data);
718 PTRIN_CP(ks32[i], kevp[i], udata);
719 }
720done:
721 return (error);
722}
723
724int
725freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap)
726{
727 struct timespec32 ts32;
728 struct timespec ts, *tsp;
729 struct kevent_copyops k_ops = { uap,
730 freebsd32_kevent_copyout,
731 freebsd32_kevent_copyin};
732 int error;
733
734
735 if (uap->timeout) {
736 error = copyin(uap->timeout, &ts32, sizeof(ts32));
737 if (error)
738 return (error);
739 CP(ts32, ts, tv_sec);
740 CP(ts32, ts, tv_nsec);
741 tsp = &ts;
742 } else
743 tsp = NULL;
744 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents,
745 &k_ops, tsp);
746 return (error);
747}
748
749int
750freebsd32_gettimeofday(struct thread *td,
751 struct freebsd32_gettimeofday_args *uap)
752{
753 struct timeval atv;
754 struct timeval32 atv32;
755 struct timezone rtz;
756 int error = 0;
757
758 if (uap->tp) {
759 microtime(&atv);
760 CP(atv, atv32, tv_sec);
761 CP(atv, atv32, tv_usec);
762 error = copyout(&atv32, uap->tp, sizeof (atv32));
763 }
764 if (error == 0 && uap->tzp != NULL) {
765 rtz.tz_minuteswest = tz_minuteswest;
766 rtz.tz_dsttime = tz_dsttime;
767 error = copyout(&rtz, uap->tzp, sizeof (rtz));
768 }
769 return (error);
770}
771
772int
773freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap)
774{
775 struct rusage32 s32;
776 struct rusage s;
777 int error;
778
779 error = kern_getrusage(td, uap->who, &s);
780 if (error)
781 return (error);
782 if (uap->rusage != NULL) {
783 freebsd32_rusage_out(&s, &s32);
784 error = copyout(&s32, uap->rusage, sizeof(s32));
785 }
786 return (error);
787}
788
789static int
790freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop)
791{
792 struct iovec32 iov32;
793 struct iovec *iov;
794 struct uio *uio;
795 u_int iovlen;
796 int error, i;
797
798 *uiop = NULL;
799 if (iovcnt > UIO_MAXIOV)
800 return (EINVAL);
801 iovlen = iovcnt * sizeof(struct iovec);
802 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK);
803 iov = (struct iovec *)(uio + 1);
804 for (i = 0; i < iovcnt; i++) {
805 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32));
806 if (error) {
807 free(uio, M_IOV);
808 return (error);
809 }
810 iov[i].iov_base = PTRIN(iov32.iov_base);
811 iov[i].iov_len = iov32.iov_len;
812 }
813 uio->uio_iov = iov;
814 uio->uio_iovcnt = iovcnt;
815 uio->uio_segflg = UIO_USERSPACE;
816 uio->uio_offset = -1;
817 uio->uio_resid = 0;
818 for (i = 0; i < iovcnt; i++) {
819 if (iov->iov_len > INT_MAX - uio->uio_resid) {
820 free(uio, M_IOV);
821 return (EINVAL);
822 }
823 uio->uio_resid += iov->iov_len;
824 iov++;
825 }
826 *uiop = uio;
827 return (0);
828}
829
830int
831freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap)
832{
833 struct uio *auio;
834 int error;
835
836 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
837 if (error)
838 return (error);
839 error = kern_readv(td, uap->fd, auio);
840 free(auio, M_IOV);
841 return (error);
842}
843
844int
845freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap)
846{
847 struct uio *auio;
848 int error;
849
850 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
851 if (error)
852 return (error);
853 error = kern_writev(td, uap->fd, auio);
854 free(auio, M_IOV);
855 return (error);
856}
857
858int
859freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap)
860{
861 struct uio *auio;
862 int error;
863
864 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
865 if (error)
866 return (error);
867 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset));
868 free(auio, M_IOV);
869 return (error);
870}
871
872int
873freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap)
874{
875 struct uio *auio;
876 int error;
877
878 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
879 if (error)
880 return (error);
881 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset));
882 free(auio, M_IOV);
883 return (error);
884}
885
886int
887freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp,
888 int error)
889{
890 struct iovec32 iov32;
891 struct iovec *iov;
892 u_int iovlen;
893 int i;
894
895 *iovp = NULL;
896 if (iovcnt > UIO_MAXIOV)
897 return (error);
898 iovlen = iovcnt * sizeof(struct iovec);
899 iov = malloc(iovlen, M_IOV, M_WAITOK);
900 for (i = 0; i < iovcnt; i++) {
901 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32));
902 if (error) {
903 free(iov, M_IOV);
904 return (error);
905 }
906 iov[i].iov_base = PTRIN(iov32.iov_base);
907 iov[i].iov_len = iov32.iov_len;
908 }
909 *iovp = iov;
910 return (0);
911}
912
913static int
914freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg)
915{
916 struct msghdr32 m32;
917 int error;
918
919 error = copyin(msg32, &m32, sizeof(m32));
920 if (error)
921 return (error);
922 msg->msg_name = PTRIN(m32.msg_name);
923 msg->msg_namelen = m32.msg_namelen;
924 msg->msg_iov = PTRIN(m32.msg_iov);
925 msg->msg_iovlen = m32.msg_iovlen;
926 msg->msg_control = PTRIN(m32.msg_control);
927 msg->msg_controllen = m32.msg_controllen;
928 msg->msg_flags = m32.msg_flags;
929 return (0);
930}
931
932static int
933freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32)
934{
935 struct msghdr32 m32;
936 int error;
937
938 m32.msg_name = PTROUT(msg->msg_name);
939 m32.msg_namelen = msg->msg_namelen;
940 m32.msg_iov = PTROUT(msg->msg_iov);
941 m32.msg_iovlen = msg->msg_iovlen;
942 m32.msg_control = PTROUT(msg->msg_control);
943 m32.msg_controllen = msg->msg_controllen;
944 m32.msg_flags = msg->msg_flags;
945 error = copyout(&m32, msg32, sizeof(m32));
946 return (error);
947}
948
949#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1)
950#define FREEBSD32_ALIGN(p) \
951 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES)
952#define FREEBSD32_CMSG_SPACE(l) \
953 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l))
954
955#define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \
956 FREEBSD32_ALIGN(sizeof(struct cmsghdr)))
957static int
958freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control)
959{
960 struct cmsghdr *cm;
961 void *data;
962 socklen_t clen, datalen;
963 int error;
964 caddr_t ctlbuf;
965 int len, maxlen, copylen;
966 struct mbuf *m;
967 error = 0;
968
969 len = msg->msg_controllen;
970 maxlen = msg->msg_controllen;
971 msg->msg_controllen = 0;
972
973 m = control;
974 ctlbuf = msg->msg_control;
975
976 while (m && len > 0) {
977 cm = mtod(m, struct cmsghdr *);
978 clen = m->m_len;
979
980 while (cm != NULL) {
981
982 if (sizeof(struct cmsghdr) > clen ||
983 cm->cmsg_len > clen) {
984 error = EINVAL;
985 break;
986 }
987
988 data = CMSG_DATA(cm);
989 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data;
990
991 /* Adjust message length */
992 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) +
993 datalen;
994
995
996 /* Copy cmsghdr */
997 copylen = sizeof(struct cmsghdr);
998 if (len < copylen) {
999 msg->msg_flags |= MSG_CTRUNC;
1000 copylen = len;
1001 }
1002
1003 error = copyout(cm,ctlbuf,copylen);
1004 if (error)
1005 goto exit;
1006
1007 ctlbuf += FREEBSD32_ALIGN(copylen);
1008 len -= FREEBSD32_ALIGN(copylen);
1009
1010 if (len <= 0)
1011 break;
1012
1013 /* Copy data */
1014 copylen = datalen;
1015 if (len < copylen) {
1016 msg->msg_flags |= MSG_CTRUNC;
1017 copylen = len;
1018 }
1019
1020 error = copyout(data,ctlbuf,copylen);
1021 if (error)
1022 goto exit;
1023
1024 ctlbuf += FREEBSD32_ALIGN(copylen);
1025 len -= FREEBSD32_ALIGN(copylen);
1026
1027 if (CMSG_SPACE(datalen) < clen) {
1028 clen -= CMSG_SPACE(datalen);
1029 cm = (struct cmsghdr *)
1030 ((caddr_t)cm + CMSG_SPACE(datalen));
1031 } else {
1032 clen = 0;
1033 cm = NULL;
1034 }
1035 }
1036 m = m->m_next;
1037 }
1038
1039 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control;
1040
1041exit:
1042 return (error);
1043
1044}
1045
1046int
1047freebsd32_recvmsg(td, uap)
1048 struct thread *td;
1049 struct freebsd32_recvmsg_args /* {
1050 int s;
1051 struct msghdr32 *msg;
1052 int flags;
1053 } */ *uap;
1054{
1055 struct msghdr msg;
1056 struct msghdr32 m32;
1057 struct iovec *uiov, *iov;
1058 struct mbuf *control = NULL;
1059 struct mbuf **controlp;
1060
1061 int error;
1062 error = copyin(uap->msg, &m32, sizeof(m32));
1063 if (error)
1064 return (error);
1065 error = freebsd32_copyinmsghdr(uap->msg, &msg);
1066 if (error)
1067 return (error);
1068 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov,
1069 EMSGSIZE);
1070 if (error)
1071 return (error);
1072 msg.msg_flags = uap->flags;
1073 uiov = msg.msg_iov;
1074 msg.msg_iov = iov;
1075
1076 controlp = (msg.msg_control != NULL) ? &control : NULL;
1077 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp);
1078 if (error == 0) {
1079 msg.msg_iov = uiov;
1080
1081 if (control != NULL)
1082 error = freebsd32_copy_msg_out(&msg, control);
1083 else
1084 msg.msg_controllen = 0;
1085
1086 if (error == 0)
1087 error = freebsd32_copyoutmsghdr(&msg, uap->msg);
1088 }
1089 free(iov, M_IOV);
1090
1091 if (control != NULL)
1092 m_freem(control);
1093
1094 return (error);
1095}
1096
1097
1098static int
1099freebsd32_convert_msg_in(struct mbuf **controlp)
1100{
1101 struct mbuf *control = *controlp;
1102 struct cmsghdr *cm = mtod(control, struct cmsghdr *);
1103 void *data;
1104 socklen_t clen = control->m_len, datalen;
1105 int error;
1106
1107 error = 0;
1108 *controlp = NULL;
1109
1110 while (cm != NULL) {
1111 if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) {
1112 error = EINVAL;
1113 break;
1114 }
1115
1116 data = FREEBSD32_CMSG_DATA(cm);
1117 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data;
1118
1119 *controlp = sbcreatecontrol(data, datalen, cm->cmsg_type,
1120 cm->cmsg_level);
1121 controlp = &(*controlp)->m_next;
1122
1123 if (FREEBSD32_CMSG_SPACE(datalen) < clen) {
1124 clen -= FREEBSD32_CMSG_SPACE(datalen);
1125 cm = (struct cmsghdr *)
1126 ((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen));
1127 } else {
1128 clen = 0;
1129 cm = NULL;
1130 }
1131 }
1132
1133 m_freem(control);
1134 return (error);
1135}
1136
1137
1138int
1139freebsd32_sendmsg(struct thread *td,
1140 struct freebsd32_sendmsg_args *uap)
1141{
1142 struct msghdr msg;
1143 struct msghdr32 m32;
1144 struct iovec *iov;
1145 struct mbuf *control = NULL;
1146 struct sockaddr *to = NULL;
1147 int error;
1148
1149 error = copyin(uap->msg, &m32, sizeof(m32));
1150 if (error)
1151 return (error);
1152 error = freebsd32_copyinmsghdr(uap->msg, &msg);
1153 if (error)
1154 return (error);
1155 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov,
1156 EMSGSIZE);
1157 if (error)
1158 return (error);
1159 msg.msg_iov = iov;
1160 if (msg.msg_name != NULL) {
1161 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen);
1162 if (error) {
1163 to = NULL;
1164 goto out;
1165 }
1166 msg.msg_name = to;
1167 }
1168
1169 if (msg.msg_control) {
1170 if (msg.msg_controllen < sizeof(struct cmsghdr)) {
1171 error = EINVAL;
1172 goto out;
1173 }
1174
1175 error = sockargs(&control, msg.msg_control,
1176 msg.msg_controllen, MT_CONTROL);
1177 if (error)
1178 goto out;
1179
1180 error = freebsd32_convert_msg_in(&control);
1181 if (error)
1182 goto out;
1183 }
1184
1185 error = kern_sendit(td, uap->s, &msg, uap->flags, control,
1186 UIO_USERSPACE);
1187
1188out:
1189 free(iov, M_IOV);
1190 if (to)
1191 free(to, M_SONAME);
1192 return (error);
1193}
1194
1195int
1196freebsd32_recvfrom(struct thread *td,
1197 struct freebsd32_recvfrom_args *uap)
1198{
1199 struct msghdr msg;
1200 struct iovec aiov;
1201 int error;
1202
1203 if (uap->fromlenaddr) {
1204 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen,
1205 sizeof(msg.msg_namelen));
1206 if (error)
1207 return (error);
1208 } else {
1209 msg.msg_namelen = 0;
1210 }
1211
1212 msg.msg_name = PTRIN(uap->from);
1213 msg.msg_iov = &aiov;
1214 msg.msg_iovlen = 1;
1215 aiov.iov_base = PTRIN(uap->buf);
1216 aiov.iov_len = uap->len;
1217 msg.msg_control = NULL;
1218 msg.msg_flags = uap->flags;
1219 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL);
1220 if (error == 0 && uap->fromlenaddr)
1221 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr),
1222 sizeof (msg.msg_namelen));
1223 return (error);
1224}
1225
1226int
1227freebsd32_settimeofday(struct thread *td,
1228 struct freebsd32_settimeofday_args *uap)
1229{
1230 struct timeval32 tv32;
1231 struct timeval tv, *tvp;
1232 struct timezone tz, *tzp;
1233 int error;
1234
1235 if (uap->tv) {
1236 error = copyin(uap->tv, &tv32, sizeof(tv32));
1237 if (error)
1238 return (error);
1239 CP(tv32, tv, tv_sec);
1240 CP(tv32, tv, tv_usec);
1241 tvp = &tv;
1242 } else
1243 tvp = NULL;
1244 if (uap->tzp) {
1245 error = copyin(uap->tzp, &tz, sizeof(tz));
1246 if (error)
1247 return (error);
1248 tzp = &tz;
1249 } else
1250 tzp = NULL;
1251 return (kern_settimeofday(td, tvp, tzp));
1252}
1253
1254int
1255freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap)
1256{
1257 struct timeval32 s32[2];
1258 struct timeval s[2], *sp;
1259 int error;
1260
1261 if (uap->tptr != NULL) {
1262 error = copyin(uap->tptr, s32, sizeof(s32));
1263 if (error)
1264 return (error);
1265 CP(s32[0], s[0], tv_sec);
1266 CP(s32[0], s[0], tv_usec);
1267 CP(s32[1], s[1], tv_sec);
1268 CP(s32[1], s[1], tv_usec);
1269 sp = s;
1270 } else
1271 sp = NULL;
1272 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE));
1273}
1274
1275int
1276freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap)
1277{
1278 struct timeval32 s32[2];
1279 struct timeval s[2], *sp;
1280 int error;
1281
1282 if (uap->tptr != NULL) {
1283 error = copyin(uap->tptr, s32, sizeof(s32));
1284 if (error)
1285 return (error);
1286 CP(s32[0], s[0], tv_sec);
1287 CP(s32[0], s[0], tv_usec);
1288 CP(s32[1], s[1], tv_sec);
1289 CP(s32[1], s[1], tv_usec);
1290 sp = s;
1291 } else
1292 sp = NULL;
1293 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE));
1294}
1295
1296int
1297freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap)
1298{
1299 struct timeval32 s32[2];
1300 struct timeval s[2], *sp;
1301 int error;
1302
1303 if (uap->tptr != NULL) {
1304 error = copyin(uap->tptr, s32, sizeof(s32));
1305 if (error)
1306 return (error);
1307 CP(s32[0], s[0], tv_sec);
1308 CP(s32[0], s[0], tv_usec);
1309 CP(s32[1], s[1], tv_sec);
1310 CP(s32[1], s[1], tv_usec);
1311 sp = s;
1312 } else
1313 sp = NULL;
1314 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE));
1315}
1316
1317int
1318freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap)
1319{
1320 struct timeval32 s32[2];
1321 struct timeval s[2], *sp;
1322 int error;
1323
1324 if (uap->times != NULL) {
1325 error = copyin(uap->times, s32, sizeof(s32));
1326 if (error)
1327 return (error);
1328 CP(s32[0], s[0], tv_sec);
1329 CP(s32[0], s[0], tv_usec);
1330 CP(s32[1], s[1], tv_sec);
1331 CP(s32[1], s[1], tv_usec);
1332 sp = s;
1333 } else
1334 sp = NULL;
1335 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE,
1336 sp, UIO_SYSSPACE));
1337}
1338
1339int
1340freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap)
1341{
1342 struct timeval32 tv32;
1343 struct timeval delta, olddelta, *deltap;
1344 int error;
1345
1346 if (uap->delta) {
1347 error = copyin(uap->delta, &tv32, sizeof(tv32));
1348 if (error)
1349 return (error);
1350 CP(tv32, delta, tv_sec);
1351 CP(tv32, delta, tv_usec);
1352 deltap = &delta;
1353 } else
1354 deltap = NULL;
1355 error = kern_adjtime(td, deltap, &olddelta);
1356 if (uap->olddelta && error == 0) {
1357 CP(olddelta, tv32, tv_sec);
1358 CP(olddelta, tv32, tv_usec);
1359 error = copyout(&tv32, uap->olddelta, sizeof(tv32));
1360 }
1361 return (error);
1362}
1363
1364#ifdef COMPAT_FREEBSD4
1365int
1366freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap)
1367{
1368 struct statfs32 s32;
1369 struct statfs s;
1370 int error;
1371
1372 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s);
1373 if (error)
1374 return (error);
1375 copy_statfs(&s, &s32);
1376 return (copyout(&s32, uap->buf, sizeof(s32)));
1377}
1378#endif
1379
1380#ifdef COMPAT_FREEBSD4
1381int
1382freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap)
1383{
1384 struct statfs32 s32;
1385 struct statfs s;
1386 int error;
1387
1388 error = kern_fstatfs(td, uap->fd, &s);
1389 if (error)
1390 return (error);
1391 copy_statfs(&s, &s32);
1392 return (copyout(&s32, uap->buf, sizeof(s32)));
1393}
1394#endif
1395
1396#ifdef COMPAT_FREEBSD4
1397int
1398freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap)
1399{
1400 struct statfs32 s32;
1401 struct statfs s;
1402 fhandle_t fh;
1403 int error;
1404
1405 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0)
1406 return (error);
1407 error = kern_fhstatfs(td, fh, &s);
1408 if (error)
1409 return (error);
1410 copy_statfs(&s, &s32);
1411 return (copyout(&s32, uap->buf, sizeof(s32)));
1412}
1413#endif
1414
1415int
1416freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap)
1417{
1418 struct pread_args ap;
1419
1420 ap.fd = uap->fd;
1421 ap.buf = uap->buf;
1422 ap.nbyte = uap->nbyte;
1423 ap.offset = PAIR32TO64(off_t,uap->offset);
1424 return (sys_pread(td, &ap));
1425}
1426
1427int
1428freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap)
1429{
1430 struct pwrite_args ap;
1431
1432 ap.fd = uap->fd;
1433 ap.buf = uap->buf;
1434 ap.nbyte = uap->nbyte;
1435 ap.offset = PAIR32TO64(off_t,uap->offset);
1436 return (sys_pwrite(td, &ap));
1437}
1438
1439#ifdef COMPAT_43
1440int
1441ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap)
1442{
1443 struct lseek_args nuap;
1444
1445 nuap.fd = uap->fd;
1446 nuap.offset = uap->offset;
1447 nuap.whence = uap->whence;
1448 return (sys_lseek(td, &nuap));
1449}
1450#endif
1451
1452int
1453freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap)
1454{
1455 int error;
1456 struct lseek_args ap;
1457 off_t pos;
1458
1459 ap.fd = uap->fd;
1460 ap.offset = PAIR32TO64(off_t,uap->offset);
1461 ap.whence = uap->whence;
1462 error = sys_lseek(td, &ap);
1463 /* Expand the quad return into two parts for eax and edx */
1464 pos = *(off_t *)(td->td_retval);
1465 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */
1466 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */
1467 return error;
1468}
1469
1470int
1471freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap)
1472{
1473 struct truncate_args ap;
1474
1475 ap.path = uap->path;
1476 ap.length = PAIR32TO64(off_t,uap->length);
1477 return (sys_truncate(td, &ap));
1478}
1479
1480int
1481freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap)
1482{
1483 struct ftruncate_args ap;
1484
1485 ap.fd = uap->fd;
1486 ap.length = PAIR32TO64(off_t,uap->length);
1487 return (sys_ftruncate(td, &ap));
1488}
1489
1490#ifdef COMPAT_43
1491int
1492ofreebsd32_getdirentries(struct thread *td,
1493 struct ofreebsd32_getdirentries_args *uap)
1494{
1495 struct ogetdirentries_args ap;
1496 int error;
1497 long loff;
1498 int32_t loff_cut;
1499
1500 ap.fd = uap->fd;
1501 ap.buf = uap->buf;
1502 ap.count = uap->count;
1503 ap.basep = NULL;
1504 error = kern_ogetdirentries(td, &ap, &loff);
1505 if (error == 0) {
1506 loff_cut = loff;
1507 error = copyout(&loff_cut, uap->basep, sizeof(int32_t));
1508 }
1509 return (error);
1510}
1511#endif
1512
1513int
1514freebsd32_getdirentries(struct thread *td,
1515 struct freebsd32_getdirentries_args *uap)
1516{
1517 long base;
1518 int32_t base32;
1519 int error;
1520
1521 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base);
1522 if (error)
1523 return (error);
1524 if (uap->basep != NULL) {
1525 base32 = base;
1526 error = copyout(&base32, uap->basep, sizeof(int32_t));
1527 }
1528 return (error);
1529}
1530
1531#ifdef COMPAT_FREEBSD6
1532/* versions with the 'int pad' argument */
1533int
1534freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap)
1535{
1536 struct pread_args ap;
1537
1538 ap.fd = uap->fd;
1539 ap.buf = uap->buf;
1540 ap.nbyte = uap->nbyte;
1541 ap.offset = PAIR32TO64(off_t,uap->offset);
1542 return (sys_pread(td, &ap));
1543}
1544
1545int
1546freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap)
1547{
1548 struct pwrite_args ap;
1549
1550 ap.fd = uap->fd;
1551 ap.buf = uap->buf;
1552 ap.nbyte = uap->nbyte;
1553 ap.offset = PAIR32TO64(off_t,uap->offset);
1554 return (sys_pwrite(td, &ap));
1555}
1556
1557int
1558freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap)
1559{
1560 int error;
1561 struct lseek_args ap;
1562 off_t pos;
1563
1564 ap.fd = uap->fd;
1565 ap.offset = PAIR32TO64(off_t,uap->offset);
1566 ap.whence = uap->whence;
1567 error = sys_lseek(td, &ap);
1568 /* Expand the quad return into two parts for eax and edx */
1569 pos = *(off_t *)(td->td_retval);
1570 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */
1571 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */
1572 return error;
1573}
1574
1575int
1576freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap)
1577{
1578 struct truncate_args ap;
1579
1580 ap.path = uap->path;
1581 ap.length = PAIR32TO64(off_t,uap->length);
1582 return (sys_truncate(td, &ap));
1583}
1584
1585int
1586freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap)
1587{
1588 struct ftruncate_args ap;
1589
1590 ap.fd = uap->fd;
1591 ap.length = PAIR32TO64(off_t,uap->length);
1592 return (sys_ftruncate(td, &ap));
1593}
1594#endif /* COMPAT_FREEBSD6 */
1595
1596struct sf_hdtr32 {
1597 uint32_t headers;
1598 int hdr_cnt;
1599 uint32_t trailers;
1600 int trl_cnt;
1601};
1602
1603static int
1604freebsd32_do_sendfile(struct thread *td,
1605 struct freebsd32_sendfile_args *uap, int compat)
1606{
1607 struct sendfile_args ap;
1608 struct sf_hdtr32 hdtr32;
1609 struct sf_hdtr hdtr;
1610 struct uio *hdr_uio, *trl_uio;
1611 struct iovec32 *iov32;
1612 int error;
1613
1614 hdr_uio = trl_uio = NULL;
1615
1616 ap.fd = uap->fd;
1617 ap.s = uap->s;
1618 ap.offset = PAIR32TO64(off_t,uap->offset);
1619 ap.nbytes = uap->nbytes;
1620 ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */
1621 ap.sbytes = uap->sbytes;
1622 ap.flags = uap->flags;
1623
1624 if (uap->hdtr != NULL) {
1625 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32));
1626 if (error)
1627 goto out;
1628 PTRIN_CP(hdtr32, hdtr, headers);
1629 CP(hdtr32, hdtr, hdr_cnt);
1630 PTRIN_CP(hdtr32, hdtr, trailers);
1631 CP(hdtr32, hdtr, trl_cnt);
1632
1633 if (hdtr.headers != NULL) {
1634 iov32 = PTRIN(hdtr32.headers);
1635 error = freebsd32_copyinuio(iov32,
1636 hdtr32.hdr_cnt, &hdr_uio);
1637 if (error)
1638 goto out;
1639 }
1640 if (hdtr.trailers != NULL) {
1641 iov32 = PTRIN(hdtr32.trailers);
1642 error = freebsd32_copyinuio(iov32,
1643 hdtr32.trl_cnt, &trl_uio);
1644 if (error)
1645 goto out;
1646 }
1647 }
1648
1649 error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat);
1650out:
1651 if (hdr_uio)
1652 free(hdr_uio, M_IOV);
1653 if (trl_uio)
1654 free(trl_uio, M_IOV);
1655 return (error);
1656}
1657
1658#ifdef COMPAT_FREEBSD4
1659int
1660freebsd4_freebsd32_sendfile(struct thread *td,
1661 struct freebsd4_freebsd32_sendfile_args *uap)
1662{
1663 return (freebsd32_do_sendfile(td,
1664 (struct freebsd32_sendfile_args *)uap, 1));
1665}
1666#endif
1667
1668int
1669freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap)
1670{
1671
1672 return (freebsd32_do_sendfile(td, uap, 0));
1673}
1674
1675static void
1676copy_stat(struct stat *in, struct stat32 *out)
1677{
1678
1679 CP(*in, *out, st_dev);
1680 CP(*in, *out, st_ino);
1681 CP(*in, *out, st_mode);
1682 CP(*in, *out, st_nlink);
1683 CP(*in, *out, st_uid);
1684 CP(*in, *out, st_gid);
1685 CP(*in, *out, st_rdev);
1686 TS_CP(*in, *out, st_atim);
1687 TS_CP(*in, *out, st_mtim);
1688 TS_CP(*in, *out, st_ctim);
1689 CP(*in, *out, st_size);
1690 CP(*in, *out, st_blocks);
1691 CP(*in, *out, st_blksize);
1692 CP(*in, *out, st_flags);
1693 CP(*in, *out, st_gen);
1694 TS_CP(*in, *out, st_birthtim);
1695}
1696
1697#ifdef COMPAT_43
1698static void
1699copy_ostat(struct stat *in, struct ostat32 *out)
1700{
1701
1702 CP(*in, *out, st_dev);
1703 CP(*in, *out, st_ino);
1704 CP(*in, *out, st_mode);
1705 CP(*in, *out, st_nlink);
1706 CP(*in, *out, st_uid);
1707 CP(*in, *out, st_gid);
1708 CP(*in, *out, st_rdev);
1709 CP(*in, *out, st_size);
1710 TS_CP(*in, *out, st_atim);
1711 TS_CP(*in, *out, st_mtim);
1712 TS_CP(*in, *out, st_ctim);
1713 CP(*in, *out, st_blksize);
1714 CP(*in, *out, st_blocks);
1715 CP(*in, *out, st_flags);
1716 CP(*in, *out, st_gen);
1717}
1718#endif
1719
1720int
1721freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap)
1722{
1723 struct stat sb;
1724 struct stat32 sb32;
1725 int error;
1726
1727 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb);
1728 if (error)
1729 return (error);
1730 copy_stat(&sb, &sb32);
1731 error = copyout(&sb32, uap->ub, sizeof (sb32));
1732 return (error);
1733}
1734
1735#ifdef COMPAT_43
1736int
1737ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap)
1738{
1739 struct stat sb;
1740 struct ostat32 sb32;
1741 int error;
1742
1743 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb);
1744 if (error)
1745 return (error);
1746 copy_ostat(&sb, &sb32);
1747 error = copyout(&sb32, uap->ub, sizeof (sb32));
1748 return (error);
1749}
1750#endif
1751
1752int
1753freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap)
1754{
1755 struct stat ub;
1756 struct stat32 ub32;
1757 int error;
1758
1759 error = kern_fstat(td, uap->fd, &ub);
1760 if (error)
1761 return (error);
1762 copy_stat(&ub, &ub32);
1763 error = copyout(&ub32, uap->ub, sizeof(ub32));
1764 return (error);
1765}
1766
1767#ifdef COMPAT_43
1768int
1769ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap)
1770{
1771 struct stat ub;
1772 struct ostat32 ub32;
1773 int error;
1774
1775 error = kern_fstat(td, uap->fd, &ub);
1776 if (error)
1777 return (error);
1778 copy_ostat(&ub, &ub32);
1779 error = copyout(&ub32, uap->ub, sizeof(ub32));
1780 return (error);
1781}
1782#endif
1783
1784int
1785freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap)
1786{
1787 struct stat ub;
1788 struct stat32 ub32;
1789 int error;
1790
1791 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub);
1792 if (error)
1793 return (error);
1794 copy_stat(&ub, &ub32);
1795 error = copyout(&ub32, uap->buf, sizeof(ub32));
1796 return (error);
1797}
1798
1799int
1800freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap)
1801{
1802 struct stat sb;
1803 struct stat32 sb32;
1804 int error;
1805
1806 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb);
1807 if (error)
1808 return (error);
1809 copy_stat(&sb, &sb32);
1810 error = copyout(&sb32, uap->ub, sizeof (sb32));
1811 return (error);
1812}
1813
1814#ifdef COMPAT_43
1815int
1816ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap)
1817{
1818 struct stat sb;
1819 struct ostat32 sb32;
1820 int error;
1821
1822 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb);
1823 if (error)
1824 return (error);
1825 copy_ostat(&sb, &sb32);
1826 error = copyout(&sb32, uap->ub, sizeof (sb32));
1827 return (error);
1828}
1829#endif
1830
1831int
1832freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap)
1833{
1834 int error, name[CTL_MAXNAME];
1835 size_t j, oldlen;
1836
1837 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2)
1838 return (EINVAL);
1839 error = copyin(uap->name, name, uap->namelen * sizeof(int));
1840 if (error)
1841 return (error);
1842 if (uap->oldlenp)
1843 oldlen = fuword32(uap->oldlenp);
1844 else
1845 oldlen = 0;
1846 error = userland_sysctl(td, name, uap->namelen,
1847 uap->old, &oldlen, 1,
1848 uap->new, uap->newlen, &j, SCTL_MASK32);
1849 if (error && error != ENOMEM)
1850 return (error);
1851 if (uap->oldlenp)
1852 suword32(uap->oldlenp, j);
1853 return (0);
1854}
1855
1856int
1857freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap)
1858{
1859 uint32_t version;
1860 int error;
1861 struct jail j;
1862
1863 error = copyin(uap->jail, &version, sizeof(uint32_t));
1864 if (error)
1865 return (error);
1866
1867 switch (version) {
1868 case 0:
1869 {
1870 /* FreeBSD single IPv4 jails. */
1871 struct jail32_v0 j32_v0;
1872
1873 bzero(&j, sizeof(struct jail));
1874 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0));
1875 if (error)
1876 return (error);
1877 CP(j32_v0, j, version);
1878 PTRIN_CP(j32_v0, j, path);
1879 PTRIN_CP(j32_v0, j, hostname);
1880 j.ip4s = j32_v0.ip_number;
1881 break;
1882 }
1883
1884 case 1:
1885 /*
1886 * Version 1 was used by multi-IPv4 jail implementations
1887 * that never made it into the official kernel.
1888 */
1889 return (EINVAL);
1890
1891 case 2: /* JAIL_API_VERSION */
1892 {
1893 /* FreeBSD multi-IPv4/IPv6,noIP jails. */
1894 struct jail32 j32;
1895
1896 error = copyin(uap->jail, &j32, sizeof(struct jail32));
1897 if (error)
1898 return (error);
1899 CP(j32, j, version);
1900 PTRIN_CP(j32, j, path);
1901 PTRIN_CP(j32, j, hostname);
1902 PTRIN_CP(j32, j, jailname);
1903 CP(j32, j, ip4s);
1904 CP(j32, j, ip6s);
1905 PTRIN_CP(j32, j, ip4);
1906 PTRIN_CP(j32, j, ip6);
1907 break;
1908 }
1909
1910 default:
1911 /* Sci-Fi jails are not supported, sorry. */
1912 return (EINVAL);
1913 }
1914 return (kern_jail(td, &j));
1915}
1916
1917int
1918freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap)
1919{
1920 struct uio *auio;
1921 int error;
1922
1923 /* Check that we have an even number of iovecs. */
1924 if (uap->iovcnt & 1)
1925 return (EINVAL);
1926
1927 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
1928 if (error)
1929 return (error);
1930 error = kern_jail_set(td, auio, uap->flags);
1931 free(auio, M_IOV);
1932 return (error);
1933}
1934
1935int
1936freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap)
1937{
1938 struct iovec32 iov32;
1939 struct uio *auio;
1940 int error, i;
1941
1942 /* Check that we have an even number of iovecs. */
1943 if (uap->iovcnt & 1)
1944 return (EINVAL);
1945
1946 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
1947 if (error)
1948 return (error);
1949 error = kern_jail_get(td, auio, uap->flags);
1950 if (error == 0)
1951 for (i = 0; i < uap->iovcnt; i++) {
1952 PTROUT_CP(auio->uio_iov[i], iov32, iov_base);
1953 CP(auio->uio_iov[i], iov32, iov_len);
1954 error = copyout(&iov32, uap->iovp + i, sizeof(iov32));
1955 if (error != 0)
1956 break;
1957 }
1958 free(auio, M_IOV);
1959 return (error);
1960}
1961
1962int
1963freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap)
1964{
1965 struct sigaction32 s32;
1966 struct sigaction sa, osa, *sap;
1967 int error;
1968
1969 if (uap->act) {
1970 error = copyin(uap->act, &s32, sizeof(s32));
1971 if (error)
1972 return (error);
1973 sa.sa_handler = PTRIN(s32.sa_u);
1974 CP(s32, sa, sa_flags);
1975 CP(s32, sa, sa_mask);
1976 sap = &sa;
1977 } else
1978 sap = NULL;
1979 error = kern_sigaction(td, uap->sig, sap, &osa, 0);
1980 if (error == 0 && uap->oact != NULL) {
1981 s32.sa_u = PTROUT(osa.sa_handler);
1982 CP(osa, s32, sa_flags);
1983 CP(osa, s32, sa_mask);
1984 error = copyout(&s32, uap->oact, sizeof(s32));
1985 }
1986 return (error);
1987}
1988
1989#ifdef COMPAT_FREEBSD4
1990int
1991freebsd4_freebsd32_sigaction(struct thread *td,
1992 struct freebsd4_freebsd32_sigaction_args *uap)
1993{
1994 struct sigaction32 s32;
1995 struct sigaction sa, osa, *sap;
1996 int error;
1997
1998 if (uap->act) {
1999 error = copyin(uap->act, &s32, sizeof(s32));
2000 if (error)
2001 return (error);
2002 sa.sa_handler = PTRIN(s32.sa_u);
2003 CP(s32, sa, sa_flags);
2004 CP(s32, sa, sa_mask);
2005 sap = &sa;
2006 } else
2007 sap = NULL;
2008 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4);
2009 if (error == 0 && uap->oact != NULL) {
2010 s32.sa_u = PTROUT(osa.sa_handler);
2011 CP(osa, s32, sa_flags);
2012 CP(osa, s32, sa_mask);
2013 error = copyout(&s32, uap->oact, sizeof(s32));
2014 }
2015 return (error);
2016}
2017#endif
2018
2019#ifdef COMPAT_43
2020struct osigaction32 {
2021 u_int32_t sa_u;
2022 osigset_t sa_mask;
2023 int sa_flags;
2024};
2025
2026#define ONSIG 32
2027
2028int
2029ofreebsd32_sigaction(struct thread *td,
2030 struct ofreebsd32_sigaction_args *uap)
2031{
2032 struct osigaction32 s32;
2033 struct sigaction sa, osa, *sap;
2034 int error;
2035
2036 if (uap->signum <= 0 || uap->signum >= ONSIG)
2037 return (EINVAL);
2038
2039 if (uap->nsa) {
2040 error = copyin(uap->nsa, &s32, sizeof(s32));
2041 if (error)
2042 return (error);
2043 sa.sa_handler = PTRIN(s32.sa_u);
2044 CP(s32, sa, sa_flags);
2045 OSIG2SIG(s32.sa_mask, sa.sa_mask);
2046 sap = &sa;
2047 } else
2048 sap = NULL;
2049 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET);
2050 if (error == 0 && uap->osa != NULL) {
2051 s32.sa_u = PTROUT(osa.sa_handler);
2052 CP(osa, s32, sa_flags);
2053 SIG2OSIG(osa.sa_mask, s32.sa_mask);
2054 error = copyout(&s32, uap->osa, sizeof(s32));
2055 }
2056 return (error);
2057}
2058
2059int
2060ofreebsd32_sigprocmask(struct thread *td,
2061 struct ofreebsd32_sigprocmask_args *uap)
2062{
2063 sigset_t set, oset;
2064 int error;
2065
2066 OSIG2SIG(uap->mask, set);
2067 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD);
2068 SIG2OSIG(oset, td->td_retval[0]);
2069 return (error);
2070}
2071
2072int
2073ofreebsd32_sigpending(struct thread *td,
2074 struct ofreebsd32_sigpending_args *uap)
2075{
2076 struct proc *p = td->td_proc;
2077 sigset_t siglist;
2078
2079 PROC_LOCK(p);
2080 siglist = p->p_siglist;
2081 SIGSETOR(siglist, td->td_siglist);
2082 PROC_UNLOCK(p);
2083 SIG2OSIG(siglist, td->td_retval[0]);
2084 return (0);
2085}
2086
2087struct sigvec32 {
2088 u_int32_t sv_handler;
2089 int sv_mask;
2090 int sv_flags;
2091};
2092
2093int
2094ofreebsd32_sigvec(struct thread *td,
2095 struct ofreebsd32_sigvec_args *uap)
2096{
2097 struct sigvec32 vec;
2098 struct sigaction sa, osa, *sap;
2099 int error;
2100
2101 if (uap->signum <= 0 || uap->signum >= ONSIG)
2102 return (EINVAL);
2103
2104 if (uap->nsv) {
2105 error = copyin(uap->nsv, &vec, sizeof(vec));
2106 if (error)
2107 return (error);
2108 sa.sa_handler = PTRIN(vec.sv_handler);
2109 OSIG2SIG(vec.sv_mask, sa.sa_mask);
2110 sa.sa_flags = vec.sv_flags;
2111 sa.sa_flags ^= SA_RESTART;
2112 sap = &sa;
2113 } else
2114 sap = NULL;
2115 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET);
2116 if (error == 0 && uap->osv != NULL) {
2117 vec.sv_handler = PTROUT(osa.sa_handler);
2118 SIG2OSIG(osa.sa_mask, vec.sv_mask);
2119 vec.sv_flags = osa.sa_flags;
2120 vec.sv_flags &= ~SA_NOCLDWAIT;
2121 vec.sv_flags ^= SA_RESTART;
2122 error = copyout(&vec, uap->osv, sizeof(vec));
2123 }
2124 return (error);
2125}
2126
2127int
2128ofreebsd32_sigblock(struct thread *td,
2129 struct ofreebsd32_sigblock_args *uap)
2130{
2131 sigset_t set, oset;
2132
2133 OSIG2SIG(uap->mask, set);
2134 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0);
2135 SIG2OSIG(oset, td->td_retval[0]);
2136 return (0);
2137}
2138
2139int
2140ofreebsd32_sigsetmask(struct thread *td,
2141 struct ofreebsd32_sigsetmask_args *uap)
2142{
2143 sigset_t set, oset;
2144
2145 OSIG2SIG(uap->mask, set);
2146 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0);
2147 SIG2OSIG(oset, td->td_retval[0]);
2148 return (0);
2149}
2150
2151int
2152ofreebsd32_sigsuspend(struct thread *td,
2153 struct ofreebsd32_sigsuspend_args *uap)
2154{
2155 sigset_t mask;
2156
2157 OSIG2SIG(uap->mask, mask);
2158 return (kern_sigsuspend(td, mask));
2159}
2160
2161struct sigstack32 {
2162 u_int32_t ss_sp;
2163 int ss_onstack;
2164};
2165
2166int
2167ofreebsd32_sigstack(struct thread *td,
2168 struct ofreebsd32_sigstack_args *uap)
2169{
2170 struct sigstack32 s32;
2171 struct sigstack nss, oss;
2172 int error = 0, unss;
2173
2174 if (uap->nss != NULL) {
2175 error = copyin(uap->nss, &s32, sizeof(s32));
2176 if (error)
2177 return (error);
2178 nss.ss_sp = PTRIN(s32.ss_sp);
2179 CP(s32, nss, ss_onstack);
2180 unss = 1;
2181 } else {
2182 unss = 0;
2183 }
2184 oss.ss_sp = td->td_sigstk.ss_sp;
2185 oss.ss_onstack = sigonstack(cpu_getstack(td));
2186 if (unss) {
2187 td->td_sigstk.ss_sp = nss.ss_sp;
2188 td->td_sigstk.ss_size = 0;
2189 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK);
2190 td->td_pflags |= TDP_ALTSTACK;
2191 }
2192 if (uap->oss != NULL) {
2193 s32.ss_sp = PTROUT(oss.ss_sp);
2194 CP(oss, s32, ss_onstack);
2195 error = copyout(&s32, uap->oss, sizeof(s32));
2196 }
2197 return (error);
2198}
2199#endif
2200
2201int
2202freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap)
2203{
2204 struct timespec32 rmt32, rqt32;
2205 struct timespec rmt, rqt;
2206 int error;
2207
2208 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32));
2209 if (error)
2210 return (error);
2211
2212 CP(rqt32, rqt, tv_sec);
2213 CP(rqt32, rqt, tv_nsec);
2214
2215 if (uap->rmtp &&
2216 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE))
2217 return (EFAULT);
2218 error = kern_nanosleep(td, &rqt, &rmt);
2219 if (error && uap->rmtp) {
2220 int error2;
2221
2222 CP(rmt, rmt32, tv_sec);
2223 CP(rmt, rmt32, tv_nsec);
2224
2225 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32));
2226 if (error2)
2227 error = error2;
2228 }
2229 return (error);
2230}
2231
2232int
2233freebsd32_clock_gettime(struct thread *td,
2234 struct freebsd32_clock_gettime_args *uap)
2235{
2236 struct timespec ats;
2237 struct timespec32 ats32;
2238 int error;
2239
2240 error = kern_clock_gettime(td, uap->clock_id, &ats);
2241 if (error == 0) {
2242 CP(ats, ats32, tv_sec);
2243 CP(ats, ats32, tv_nsec);
2244 error = copyout(&ats32, uap->tp, sizeof(ats32));
2245 }
2246 return (error);
2247}
2248
2249int
2250freebsd32_clock_settime(struct thread *td,
2251 struct freebsd32_clock_settime_args *uap)
2252{
2253 struct timespec ats;
2254 struct timespec32 ats32;
2255 int error;
2256
2257 error = copyin(uap->tp, &ats32, sizeof(ats32));
2258 if (error)
2259 return (error);
2260 CP(ats32, ats, tv_sec);
2261 CP(ats32, ats, tv_nsec);
2262
2263 return (kern_clock_settime(td, uap->clock_id, &ats));
2264}
2265
2266int
2267freebsd32_clock_getres(struct thread *td,
2268 struct freebsd32_clock_getres_args *uap)
2269{
2270 struct timespec ts;
2271 struct timespec32 ts32;
2272 int error;
2273
2274 if (uap->tp == NULL)
2275 return (0);
2276 error = kern_clock_getres(td, uap->clock_id, &ts);
2277 if (error == 0) {
2278 CP(ts, ts32, tv_sec);
2279 CP(ts, ts32, tv_nsec);
2280 error = copyout(&ts32, uap->tp, sizeof(ts32));
2281 }
2282 return (error);
2283}
2284
2285int
2286freebsd32_thr_new(struct thread *td,
2287 struct freebsd32_thr_new_args *uap)
2288{
2289 struct thr_param32 param32;
2290 struct thr_param param;
2291 int error;
2292
2293 if (uap->param_size < 0 ||
2294 uap->param_size > sizeof(struct thr_param32))
2295 return (EINVAL);
2296 bzero(&param, sizeof(struct thr_param));
2297 bzero(&param32, sizeof(struct thr_param32));
2298 error = copyin(uap->param, &param32, uap->param_size);
2299 if (error != 0)
2300 return (error);
2301 param.start_func = PTRIN(param32.start_func);
2302 param.arg = PTRIN(param32.arg);
2303 param.stack_base = PTRIN(param32.stack_base);
2304 param.stack_size = param32.stack_size;
2305 param.tls_base = PTRIN(param32.tls_base);
2306 param.tls_size = param32.tls_size;
2307 param.child_tid = PTRIN(param32.child_tid);
2308 param.parent_tid = PTRIN(param32.parent_tid);
2309 param.flags = param32.flags;
2310 param.rtp = PTRIN(param32.rtp);
2311 param.spare[0] = PTRIN(param32.spare[0]);
2312 param.spare[1] = PTRIN(param32.spare[1]);
2313 param.spare[2] = PTRIN(param32.spare[2]);
2314
2315 return (kern_thr_new(td, &param));
2316}
2317
2318int
2319freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap)
2320{
2321 struct timespec32 ts32;
2322 struct timespec ts, *tsp;
2323 int error;
2324
2325 error = 0;
2326 tsp = NULL;
2327 if (uap->timeout != NULL) {
2328 error = copyin((const void *)uap->timeout, (void *)&ts32,
2329 sizeof(struct timespec32));
2330 if (error != 0)
2331 return (error);
2332 ts.tv_sec = ts32.tv_sec;
2333 ts.tv_nsec = ts32.tv_nsec;
2334 tsp = &ts;
2335 }
2336 return (kern_thr_suspend(td, tsp));
2337}
2338
2339void
2340siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst)
2341{
2342 bzero(dst, sizeof(*dst));
2343 dst->si_signo = src->si_signo;
2344 dst->si_errno = src->si_errno;
2345 dst->si_code = src->si_code;
2346 dst->si_pid = src->si_pid;
2347 dst->si_uid = src->si_uid;
2348 dst->si_status = src->si_status;
2349 dst->si_addr = (uintptr_t)src->si_addr;
2350 dst->si_value.sigval_int = src->si_value.sival_int;
2351 dst->si_timerid = src->si_timerid;
2352 dst->si_overrun = src->si_overrun;
2353}
2354
2355int
2356freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap)
2357{
2358 struct timespec32 ts32;
2359 struct timespec ts;
2360 struct timespec *timeout;
2361 sigset_t set;
2362 ksiginfo_t ksi;
2363 struct siginfo32 si32;
2364 int error;
2365
2366 if (uap->timeout) {
2367 error = copyin(uap->timeout, &ts32, sizeof(ts32));
2368 if (error)
2369 return (error);
2370 ts.tv_sec = ts32.tv_sec;
2371 ts.tv_nsec = ts32.tv_nsec;
2372 timeout = &ts;
2373 } else
2374 timeout = NULL;
2375
2376 error = copyin(uap->set, &set, sizeof(set));
2377 if (error)
2378 return (error);
2379
2380 error = kern_sigtimedwait(td, set, &ksi, timeout);
2381 if (error)
2382 return (error);
2383
2384 if (uap->info) {
2385 siginfo_to_siginfo32(&ksi.ksi_info, &si32);
2386 error = copyout(&si32, uap->info, sizeof(struct siginfo32));
2387 }
2388
2389 if (error == 0)
2390 td->td_retval[0] = ksi.ksi_signo;
2391 return (error);
2392}
2393
2394/*
2395 * MPSAFE
2396 */
2397int
2398freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap)
2399{
2400 ksiginfo_t ksi;
2401 struct siginfo32 si32;
2402 sigset_t set;
2403 int error;
2404
2405 error = copyin(uap->set, &set, sizeof(set));
2406 if (error)
2407 return (error);
2408
2409 error = kern_sigtimedwait(td, set, &ksi, NULL);
2410 if (error)
2411 return (error);
2412
2413 if (uap->info) {
2414 siginfo_to_siginfo32(&ksi.ksi_info, &si32);
2415 error = copyout(&si32, uap->info, sizeof(struct siginfo32));
2416 }
2417 if (error == 0)
2418 td->td_retval[0] = ksi.ksi_signo;
2419 return (error);
2420}
2421
2422int
2423freebsd32_cpuset_setid(struct thread *td,
2424 struct freebsd32_cpuset_setid_args *uap)
2425{
2426 struct cpuset_setid_args ap;
2427
2428 ap.which = uap->which;
2429 ap.id = PAIR32TO64(id_t,uap->id);
2430 ap.setid = uap->setid;
2431
2432 return (sys_cpuset_setid(td, &ap));
2433}
2434
2435int
2436freebsd32_cpuset_getid(struct thread *td,
2437 struct freebsd32_cpuset_getid_args *uap)
2438{
2439 struct cpuset_getid_args ap;
2440
2441 ap.level = uap->level;
2442 ap.which = uap->which;
2443 ap.id = PAIR32TO64(id_t,uap->id);
2444 ap.setid = uap->setid;
2445
2446 return (sys_cpuset_getid(td, &ap));
2447}
2448
2449int
2450freebsd32_cpuset_getaffinity(struct thread *td,
2451 struct freebsd32_cpuset_getaffinity_args *uap)
2452{
2453 struct cpuset_getaffinity_args ap;
2454
2455 ap.level = uap->level;
2456 ap.which = uap->which;
2457 ap.id = PAIR32TO64(id_t,uap->id);
2458 ap.cpusetsize = uap->cpusetsize;
2459 ap.mask = uap->mask;
2460
2461 return (sys_cpuset_getaffinity(td, &ap));
2462}
2463
2464int
2465freebsd32_cpuset_setaffinity(struct thread *td,
2466 struct freebsd32_cpuset_setaffinity_args *uap)
2467{
2468 struct cpuset_setaffinity_args ap;
2469
2470 ap.level = uap->level;
2471 ap.which = uap->which;
2472 ap.id = PAIR32TO64(id_t,uap->id);
2473 ap.cpusetsize = uap->cpusetsize;
2474 ap.mask = uap->mask;
2475
2476 return (sys_cpuset_setaffinity(td, &ap));
2477}
2478
2479int
2480freebsd32_nmount(struct thread *td,
2481 struct freebsd32_nmount_args /* {
2482 struct iovec *iovp;
2483 unsigned int iovcnt;
2484 int flags;
2485 } */ *uap)
2486{
2487 struct uio *auio;
2488 uint64_t flags;
2489 int error;
2490
2490 AUDIT_ARG_FFLAGS(uap->flags);
2491 /*
2492 * Mount flags are now 64-bits. On 32-bit archtectures only
2493 * 32-bits are passed in, but from here on everything handles
2494 * 64-bit flags correctly.
2495 */
2496 flags = uap->flags;
2497
2498 AUDIT_ARG_FFLAGS(flags);
2499
2500 /*
2501 * Filter out MNT_ROOTFS. We do not want clients of nmount() in
2502 * userspace to set this flag, but we must filter it out if we want
2503 * MNT_UPDATE on the root file system to work.
2504 * MNT_ROOTFS should only be set by the kernel when mounting its
2505 * root file system.
2506 */
2499 uap->flags &= ~MNT_ROOTFS;
2507 flags &= ~MNT_ROOTFS;
2508
2509 /*
2510 * check that we have an even number of iovec's
2511 * and that we have at least two options.
2512 */
2513 if ((uap->iovcnt & 1) || (uap->iovcnt < 4))
2514 return (EINVAL);
2515
2516 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
2517 if (error)
2518 return (error);
2511 error = vfs_donmount(td, uap->flags, auio);
2519 error = vfs_donmount(td, flags, auio);
2520
2521 free(auio, M_IOV);
2522 return error;
2523}
2524
2525#if 0
2526int
2527freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap)
2528{
2529 struct yyy32 *p32, s32;
2530 struct yyy *p = NULL, s;
2531 struct xxx_arg ap;
2532 int error;
2533
2534 if (uap->zzz) {
2535 error = copyin(uap->zzz, &s32, sizeof(s32));
2536 if (error)
2537 return (error);
2538 /* translate in */
2539 p = &s;
2540 }
2541 error = kern_xxx(td, p);
2542 if (error)
2543 return (error);
2544 if (uap->zzz) {
2545 /* translate out */
2546 error = copyout(&s32, p32, sizeof(s32));
2547 }
2548 return (error);
2549}
2550#endif
2551
2552int
2553syscall32_register(int *offset, struct sysent *new_sysent,
2554 struct sysent *old_sysent)
2555{
2556 if (*offset == NO_SYSCALL) {
2557 int i;
2558
2559 for (i = 1; i < SYS_MAXSYSCALL; ++i)
2560 if (freebsd32_sysent[i].sy_call ==
2561 (sy_call_t *)lkmnosys)
2562 break;
2563 if (i == SYS_MAXSYSCALL)
2564 return (ENFILE);
2565 *offset = i;
2566 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL)
2567 return (EINVAL);
2568 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys &&
2569 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys)
2570 return (EEXIST);
2571
2572 *old_sysent = freebsd32_sysent[*offset];
2573 freebsd32_sysent[*offset] = *new_sysent;
2574 return 0;
2575}
2576
2577int
2578syscall32_deregister(int *offset, struct sysent *old_sysent)
2579{
2580
2581 if (*offset)
2582 freebsd32_sysent[*offset] = *old_sysent;
2583 return 0;
2584}
2585
2586int
2587syscall32_module_handler(struct module *mod, int what, void *arg)
2588{
2589 struct syscall_module_data *data = (struct syscall_module_data*)arg;
2590 modspecific_t ms;
2591 int error;
2592
2593 switch (what) {
2594 case MOD_LOAD:
2595 error = syscall32_register(data->offset, data->new_sysent,
2596 &data->old_sysent);
2597 if (error) {
2598 /* Leave a mark so we know to safely unload below. */
2599 data->offset = NULL;
2600 return error;
2601 }
2602 ms.intval = *data->offset;
2603 MOD_XLOCK;
2604 module_setspecific(mod, &ms);
2605 MOD_XUNLOCK;
2606 if (data->chainevh)
2607 error = data->chainevh(mod, what, data->chainarg);
2608 return (error);
2609 case MOD_UNLOAD:
2610 /*
2611 * MOD_LOAD failed, so just return without calling the
2612 * chained handler since we didn't pass along the MOD_LOAD
2613 * event.
2614 */
2615 if (data->offset == NULL)
2616 return (0);
2617 if (data->chainevh) {
2618 error = data->chainevh(mod, what, data->chainarg);
2619 if (error)
2620 return (error);
2621 }
2622 error = syscall32_deregister(data->offset, &data->old_sysent);
2623 return (error);
2624 default:
2625 error = EOPNOTSUPP;
2626 if (data->chainevh)
2627 error = data->chainevh(mod, what, data->chainarg);
2628 return (error);
2629 }
2630}
2631
2632int
2633syscall32_helper_register(struct syscall_helper_data *sd)
2634{
2635 struct syscall_helper_data *sd1;
2636 int error;
2637
2638 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) {
2639 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent,
2640 &sd1->old_sysent);
2641 if (error != 0) {
2642 syscall32_helper_unregister(sd);
2643 return (error);
2644 }
2645 sd1->registered = 1;
2646 }
2647 return (0);
2648}
2649
2650int
2651syscall32_helper_unregister(struct syscall_helper_data *sd)
2652{
2653 struct syscall_helper_data *sd1;
2654
2655 for (sd1 = sd; sd1->registered != 0; sd1++) {
2656 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent);
2657 sd1->registered = 0;
2658 }
2659 return (0);
2660}
2661
2662register_t *
2663freebsd32_copyout_strings(struct image_params *imgp)
2664{
2665 int argc, envc, i;
2666 u_int32_t *vectp;
2667 char *stringp, *destp;
2668 u_int32_t *stack_base;
2669 struct freebsd32_ps_strings *arginfo;
2670 char canary[sizeof(long) * 8];
2671 int32_t pagesizes32[MAXPAGESIZES];
2672 size_t execpath_len;
2673 int szsigcode;
2674
2675 /*
2676 * Calculate string base and vector table pointers.
2677 * Also deal with signal trampoline code for this exec type.
2678 */
2679 if (imgp->execpath != NULL && imgp->auxargs != NULL)
2680 execpath_len = strlen(imgp->execpath) + 1;
2681 else
2682 execpath_len = 0;
2683 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent->
2684 sv_psstrings;
2685 if (imgp->proc->p_sysent->sv_sigcode_base == 0)
2686 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode);
2687 else
2688 szsigcode = 0;
2689 destp = (caddr_t)arginfo - szsigcode - SPARE_USRSPACE -
2690 roundup(execpath_len, sizeof(char *)) -
2691 roundup(sizeof(canary), sizeof(char *)) -
2692 roundup(sizeof(pagesizes32), sizeof(char *)) -
2693 roundup((ARG_MAX - imgp->args->stringspace), sizeof(char *));
2694
2695 /*
2696 * install sigcode
2697 */
2698 if (szsigcode != 0)
2699 copyout(imgp->proc->p_sysent->sv_sigcode,
2700 ((caddr_t)arginfo - szsigcode), szsigcode);
2701
2702 /*
2703 * Copy the image path for the rtld.
2704 */
2705 if (execpath_len != 0) {
2706 imgp->execpathp = (uintptr_t)arginfo - szsigcode - execpath_len;
2707 copyout(imgp->execpath, (void *)imgp->execpathp,
2708 execpath_len);
2709 }
2710
2711 /*
2712 * Prepare the canary for SSP.
2713 */
2714 arc4rand(canary, sizeof(canary), 0);
2715 imgp->canary = (uintptr_t)arginfo - szsigcode - execpath_len -
2716 sizeof(canary);
2717 copyout(canary, (void *)imgp->canary, sizeof(canary));
2718 imgp->canarylen = sizeof(canary);
2719
2720 /*
2721 * Prepare the pagesizes array.
2722 */
2723 for (i = 0; i < MAXPAGESIZES; i++)
2724 pagesizes32[i] = (uint32_t)pagesizes[i];
2725 imgp->pagesizes = (uintptr_t)arginfo - szsigcode - execpath_len -
2726 roundup(sizeof(canary), sizeof(char *)) - sizeof(pagesizes32);
2727 copyout(pagesizes32, (void *)imgp->pagesizes, sizeof(pagesizes32));
2728 imgp->pagesizeslen = sizeof(pagesizes32);
2729
2730 /*
2731 * If we have a valid auxargs ptr, prepare some room
2732 * on the stack.
2733 */
2734 if (imgp->auxargs) {
2735 /*
2736 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for
2737 * lower compatibility.
2738 */
2739 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size
2740 : (AT_COUNT * 2);
2741 /*
2742 * The '+ 2' is for the null pointers at the end of each of
2743 * the arg and env vector sets,and imgp->auxarg_size is room
2744 * for argument of Runtime loader.
2745 */
2746 vectp = (u_int32_t *) (destp - (imgp->args->argc +
2747 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) *
2748 sizeof(u_int32_t));
2749 } else
2750 /*
2751 * The '+ 2' is for the null pointers at the end of each of
2752 * the arg and env vector sets
2753 */
2754 vectp = (u_int32_t *)
2755 (destp - (imgp->args->argc + imgp->args->envc + 2) * sizeof(u_int32_t));
2756
2757 /*
2758 * vectp also becomes our initial stack base
2759 */
2760 stack_base = vectp;
2761
2762 stringp = imgp->args->begin_argv;
2763 argc = imgp->args->argc;
2764 envc = imgp->args->envc;
2765 /*
2766 * Copy out strings - arguments and environment.
2767 */
2768 copyout(stringp, destp, ARG_MAX - imgp->args->stringspace);
2769
2770 /*
2771 * Fill in "ps_strings" struct for ps, w, etc.
2772 */
2773 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp);
2774 suword32(&arginfo->ps_nargvstr, argc);
2775
2776 /*
2777 * Fill in argument portion of vector table.
2778 */
2779 for (; argc > 0; --argc) {
2780 suword32(vectp++, (u_int32_t)(intptr_t)destp);
2781 while (*stringp++ != 0)
2782 destp++;
2783 destp++;
2784 }
2785
2786 /* a null vector table pointer separates the argp's from the envp's */
2787 suword32(vectp++, 0);
2788
2789 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp);
2790 suword32(&arginfo->ps_nenvstr, envc);
2791
2792 /*
2793 * Fill in environment portion of vector table.
2794 */
2795 for (; envc > 0; --envc) {
2796 suword32(vectp++, (u_int32_t)(intptr_t)destp);
2797 while (*stringp++ != 0)
2798 destp++;
2799 destp++;
2800 }
2801
2802 /* end of vector table is a null pointer */
2803 suword32(vectp, 0);
2804
2805 return ((register_t *)stack_base);
2806}
2807
2808int
2809freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap)
2810{
2811 struct kld_file_stat stat;
2812 struct kld32_file_stat stat32;
2813 int error, version;
2814
2815 if ((error = copyin(&uap->stat->version, &version, sizeof(version)))
2816 != 0)
2817 return (error);
2818 if (version != sizeof(struct kld32_file_stat_1) &&
2819 version != sizeof(struct kld32_file_stat))
2820 return (EINVAL);
2821
2822 error = kern_kldstat(td, uap->fileid, &stat);
2823 if (error != 0)
2824 return (error);
2825
2826 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name));
2827 CP(stat, stat32, refs);
2828 CP(stat, stat32, id);
2829 PTROUT_CP(stat, stat32, address);
2830 CP(stat, stat32, size);
2831 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname));
2832 return (copyout(&stat32, uap->stat, version));
2833}
2834
2835int
2836freebsd32_posix_fallocate(struct thread *td,
2837 struct freebsd32_posix_fallocate_args *uap)
2838{
2839
2840 return (kern_posix_fallocate(td, uap->fd,
2841 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)));
2842}
2843
2844int
2845freebsd32_posix_fadvise(struct thread *td,
2846 struct freebsd32_posix_fadvise_args *uap)
2847{
2848
2849 return (kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset),
2850 PAIR32TO64(off_t, uap->len), uap->advice));
2851}