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/10.2/sys/compat/freebsd32/freebsd32_misc.c 283359 2015-05-24 07:32:02Z kib $");
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/capsicum.h>
39 #include <sys/clock.h>
40 #include <sys/exec.h>
41 #include <sys/fcntl.h>
42 #include <sys/filedesc.h>
43 #include <sys/imgact.h>
44 #include <sys/jail.h>
45 #include <sys/kernel.h>
46 #include <sys/limits.h>
47 #include <sys/linker.h>
48 #include <sys/lock.h>
49 #include <sys/malloc.h>
50 #include <sys/file.h> /* Must come after sys/malloc.h */
51 #include <sys/imgact.h>
52 #include <sys/mbuf.h>
53 #include <sys/mman.h>
54 #include <sys/module.h>
55 #include <sys/mount.h>
56 #include <sys/mutex.h>
57 #include <sys/namei.h>
58 #include <sys/proc.h>
59 #include <sys/procctl.h>
60 #include <sys/reboot.h>
61 #include <sys/resource.h>
62 #include <sys/resourcevar.h>
63 #include <sys/selinfo.h>
64 #include <sys/eventvar.h> /* Must come after sys/selinfo.h */
65 #include <sys/pipe.h> /* Must come after sys/selinfo.h */
66 #include <sys/signal.h>
67 #include <sys/signalvar.h>
68 #include <sys/socket.h>
69 #include <sys/socketvar.h>
70 #include <sys/stat.h>
71 #include <sys/syscall.h>
72 #include <sys/syscallsubr.h>
73 #include <sys/sysctl.h>
74 #include <sys/sysent.h>
75 #include <sys/sysproto.h>
76 #include <sys/systm.h>
77 #include <sys/thr.h>
78 #include <sys/unistd.h>
79 #include <sys/ucontext.h>
80 #include <sys/vnode.h>
81 #include <sys/wait.h>
82 #include <sys/ipc.h>
83 #include <sys/msg.h>
84 #include <sys/sem.h>
85 #include <sys/shm.h>
86
87 #ifdef INET
88 #include <netinet/in.h>
89 #endif
90
91 #include <vm/vm.h>
92 #include <vm/vm_param.h>
93 #include <vm/pmap.h>
94 #include <vm/vm_map.h>
95 #include <vm/vm_object.h>
96 #include <vm/vm_extern.h>
97
98 #include <machine/cpu.h>
99 #include <machine/elf.h>
100
101 #include <security/audit/audit.h>
102
103 #include <compat/freebsd32/freebsd32_util.h>
104 #include <compat/freebsd32/freebsd32.h>
105 #include <compat/freebsd32/freebsd32_ipc.h>
106 #include <compat/freebsd32/freebsd32_misc.h>
107 #include <compat/freebsd32/freebsd32_signal.h>
108 #include <compat/freebsd32/freebsd32_proto.h>
109
110 FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD");
111
112 #ifndef __mips__
113 CTASSERT(sizeof(struct timeval32) == 8);
114 CTASSERT(sizeof(struct timespec32) == 8);
115 CTASSERT(sizeof(struct itimerval32) == 16);
116 #endif
117 CTASSERT(sizeof(struct statfs32) == 256);
118 #ifndef __mips__
119 CTASSERT(sizeof(struct rusage32) == 72);
120 #endif
121 CTASSERT(sizeof(struct sigaltstack32) == 12);
122 CTASSERT(sizeof(struct kevent32) == 20);
123 CTASSERT(sizeof(struct iovec32) == 8);
124 CTASSERT(sizeof(struct msghdr32) == 28);
125 #ifndef __mips__
126 CTASSERT(sizeof(struct stat32) == 96);
127 #endif
128 CTASSERT(sizeof(struct sigaction32) == 24);
129
130 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count);
131 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count);
132
133 void
134 freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32)
135 {
136
137 TV_CP(*s, *s32, ru_utime);
138 TV_CP(*s, *s32, ru_stime);
139 CP(*s, *s32, ru_maxrss);
140 CP(*s, *s32, ru_ixrss);
141 CP(*s, *s32, ru_idrss);
142 CP(*s, *s32, ru_isrss);
143 CP(*s, *s32, ru_minflt);
144 CP(*s, *s32, ru_majflt);
145 CP(*s, *s32, ru_nswap);
146 CP(*s, *s32, ru_inblock);
147 CP(*s, *s32, ru_oublock);
148 CP(*s, *s32, ru_msgsnd);
149 CP(*s, *s32, ru_msgrcv);
150 CP(*s, *s32, ru_nsignals);
151 CP(*s, *s32, ru_nvcsw);
152 CP(*s, *s32, ru_nivcsw);
153 }
154
155 int
156 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap)
157 {
158 int error, status;
159 struct rusage32 ru32;
160 struct rusage ru, *rup;
161
162 if (uap->rusage != NULL)
163 rup = &ru;
164 else
165 rup = NULL;
166 error = kern_wait(td, uap->pid, &status, uap->options, rup);
167 if (error)
168 return (error);
169 if (uap->status != NULL)
170 error = copyout(&status, uap->status, sizeof(status));
171 if (uap->rusage != NULL && error == 0) {
172 freebsd32_rusage_out(&ru, &ru32);
173 error = copyout(&ru32, uap->rusage, sizeof(ru32));
174 }
175 return (error);
176 }
177
178 int
179 freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap)
180 {
181 struct wrusage32 wru32;
182 struct __wrusage wru, *wrup;
183 struct siginfo32 si32;
184 struct __siginfo si, *sip;
185 int error, status;
186
187 if (uap->wrusage != NULL)
188 wrup = &wru;
189 else
190 wrup = NULL;
191 if (uap->info != NULL) {
192 sip = &si;
193 bzero(sip, sizeof(*sip));
194 } else
195 sip = NULL;
196 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id),
197 &status, uap->options, wrup, sip);
198 if (error != 0)
199 return (error);
200 if (uap->status != NULL)
201 error = copyout(&status, uap->status, sizeof(status));
202 if (uap->wrusage != NULL && error == 0) {
203 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self);
204 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children);
205 error = copyout(&wru32, uap->wrusage, sizeof(wru32));
206 }
207 if (uap->info != NULL && error == 0) {
208 siginfo_to_siginfo32 (&si, &si32);
209 error = copyout(&si32, uap->info, sizeof(si32));
210 }
211 return (error);
212 }
213
214 #ifdef COMPAT_FREEBSD4
215 static void
216 copy_statfs(struct statfs *in, struct statfs32 *out)
217 {
218
219 statfs_scale_blocks(in, INT32_MAX);
220 bzero(out, sizeof(*out));
221 CP(*in, *out, f_bsize);
222 out->f_iosize = MIN(in->f_iosize, INT32_MAX);
223 CP(*in, *out, f_blocks);
224 CP(*in, *out, f_bfree);
225 CP(*in, *out, f_bavail);
226 out->f_files = MIN(in->f_files, INT32_MAX);
227 out->f_ffree = MIN(in->f_ffree, INT32_MAX);
228 CP(*in, *out, f_fsid);
229 CP(*in, *out, f_owner);
230 CP(*in, *out, f_type);
231 CP(*in, *out, f_flags);
232 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX);
233 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX);
234 strlcpy(out->f_fstypename,
235 in->f_fstypename, MFSNAMELEN);
236 strlcpy(out->f_mntonname,
237 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN));
238 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX);
239 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX);
240 strlcpy(out->f_mntfromname,
241 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN));
242 }
243 #endif
244
245 #ifdef COMPAT_FREEBSD4
246 int
247 freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap)
248 {
249 struct statfs *buf, *sp;
250 struct statfs32 stat32;
251 size_t count, size;
252 int error;
253
254 count = uap->bufsize / sizeof(struct statfs32);
255 size = count * sizeof(struct statfs);
256 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags);
257 if (size > 0) {
258 count = td->td_retval[0];
259 sp = buf;
260 while (count > 0 && error == 0) {
261 copy_statfs(sp, &stat32);
262 error = copyout(&stat32, uap->buf, sizeof(stat32));
263 sp++;
264 uap->buf++;
265 count--;
266 }
267 free(buf, M_TEMP);
268 }
269 return (error);
270 }
271 #endif
272
273 int
274 freebsd32_sigaltstack(struct thread *td,
275 struct freebsd32_sigaltstack_args *uap)
276 {
277 struct sigaltstack32 s32;
278 struct sigaltstack ss, oss, *ssp;
279 int error;
280
281 if (uap->ss != NULL) {
282 error = copyin(uap->ss, &s32, sizeof(s32));
283 if (error)
284 return (error);
285 PTRIN_CP(s32, ss, ss_sp);
286 CP(s32, ss, ss_size);
287 CP(s32, ss, ss_flags);
288 ssp = &ss;
289 } else
290 ssp = NULL;
291 error = kern_sigaltstack(td, ssp, &oss);
292 if (error == 0 && uap->oss != NULL) {
293 PTROUT_CP(oss, s32, ss_sp);
294 CP(oss, s32, ss_size);
295 CP(oss, s32, ss_flags);
296 error = copyout(&s32, uap->oss, sizeof(s32));
297 }
298 return (error);
299 }
300
301 /*
302 * Custom version of exec_copyin_args() so that we can translate
303 * the pointers.
304 */
305 int
306 freebsd32_exec_copyin_args(struct image_args *args, char *fname,
307 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv)
308 {
309 char *argp, *envp;
310 u_int32_t *p32, arg;
311 size_t length;
312 int error;
313
314 bzero(args, sizeof(*args));
315 if (argv == NULL)
316 return (EFAULT);
317
318 /*
319 * Allocate demand-paged memory for the file name, argument, and
320 * environment strings.
321 */
322 error = exec_alloc_args(args);
323 if (error != 0)
324 return (error);
325
326 /*
327 * Copy the file name.
328 */
329 if (fname != NULL) {
330 args->fname = args->buf;
331 error = (segflg == UIO_SYSSPACE) ?
332 copystr(fname, args->fname, PATH_MAX, &length) :
333 copyinstr(fname, args->fname, PATH_MAX, &length);
334 if (error != 0)
335 goto err_exit;
336 } else
337 length = 0;
338
339 args->begin_argv = args->buf + length;
340 args->endp = args->begin_argv;
341 args->stringspace = ARG_MAX;
342
343 /*
344 * extract arguments first
345 */
346 p32 = argv;
347 for (;;) {
348 error = copyin(p32++, &arg, sizeof(arg));
349 if (error)
350 goto err_exit;
351 if (arg == 0)
352 break;
353 argp = PTRIN(arg);
354 error = copyinstr(argp, args->endp, args->stringspace, &length);
355 if (error) {
356 if (error == ENAMETOOLONG)
357 error = E2BIG;
358 goto err_exit;
359 }
360 args->stringspace -= length;
361 args->endp += length;
362 args->argc++;
363 }
364
365 args->begin_envv = args->endp;
366
367 /*
368 * extract environment strings
369 */
370 if (envv) {
371 p32 = envv;
372 for (;;) {
373 error = copyin(p32++, &arg, sizeof(arg));
374 if (error)
375 goto err_exit;
376 if (arg == 0)
377 break;
378 envp = PTRIN(arg);
379 error = copyinstr(envp, args->endp, args->stringspace,
380 &length);
381 if (error) {
382 if (error == ENAMETOOLONG)
383 error = E2BIG;
384 goto err_exit;
385 }
386 args->stringspace -= length;
387 args->endp += length;
388 args->envc++;
389 }
390 }
391
392 return (0);
393
394 err_exit:
395 exec_free_args(args);
396 return (error);
397 }
398
399 int
400 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap)
401 {
402 struct image_args eargs;
403 struct vmspace *oldvmspace;
404 int error;
405
406 error = pre_execve(td, &oldvmspace);
407 if (error != 0)
408 return (error);
409 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE,
410 uap->argv, uap->envv);
411 if (error == 0)
412 error = kern_execve(td, &eargs, NULL);
413 post_execve(td, error, oldvmspace);
414 return (error);
415 }
416
417 int
418 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap)
419 {
420 struct image_args eargs;
421 struct vmspace *oldvmspace;
422 int error;
423
424 error = pre_execve(td, &oldvmspace);
425 if (error != 0)
426 return (error);
427 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE,
428 uap->argv, uap->envv);
429 if (error == 0) {
430 eargs.fd = uap->fd;
431 error = kern_execve(td, &eargs, NULL);
432 }
433 post_execve(td, error, oldvmspace);
434 return (error);
435 }
436
437 #ifdef __ia64__
438 static int
439 freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end,
440 int prot, int fd, off_t pos)
441 {
442 vm_map_t map;
443 vm_map_entry_t entry;
444 int rv;
445
446 map = &td->td_proc->p_vmspace->vm_map;
447 if (fd != -1)
448 prot |= VM_PROT_WRITE;
449
450 if (vm_map_lookup_entry(map, start, &entry)) {
451 if ((entry->protection & prot) != prot) {
452 rv = vm_map_protect(map,
453 trunc_page(start),
454 round_page(end),
455 entry->protection | prot,
456 FALSE);
457 if (rv != KERN_SUCCESS)
458 return (EINVAL);
459 }
460 } else {
461 vm_offset_t addr = trunc_page(start);
462 rv = vm_map_find(map, NULL, 0, &addr, PAGE_SIZE, 0,
463 VMFS_NO_SPACE, prot, VM_PROT_ALL, 0);
464 if (rv != KERN_SUCCESS)
465 return (EINVAL);
466 }
467
468 if (fd != -1) {
469 struct pread_args r;
470 r.fd = fd;
471 r.buf = (void *) start;
472 r.nbyte = end - start;
473 r.offset = pos;
474 return (sys_pread(td, &r));
475 } else {
476 while (start < end) {
477 subyte((void *) start, 0);
478 start++;
479 }
480 return (0);
481 }
482 }
483 #endif
484
485 int
486 freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap)
487 {
488 struct mprotect_args ap;
489
490 ap.addr = PTRIN(uap->addr);
491 ap.len = uap->len;
492 ap.prot = uap->prot;
493 #if defined(__amd64__) || defined(__ia64__)
494 if (i386_read_exec && (ap.prot & PROT_READ) != 0)
495 ap.prot |= PROT_EXEC;
496 #endif
497 return (sys_mprotect(td, &ap));
498 }
499
500 int
501 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap)
502 {
503 struct mmap_args ap;
504 vm_offset_t addr = (vm_offset_t) uap->addr;
505 vm_size_t len = uap->len;
506 int prot = uap->prot;
507 int flags = uap->flags;
508 int fd = uap->fd;
509 off_t pos = PAIR32TO64(off_t,uap->pos);
510 #ifdef __ia64__
511 vm_size_t pageoff;
512 int error;
513
514 /*
515 * Attempt to handle page size hassles.
516 */
517 pageoff = (pos & PAGE_MASK);
518 if (flags & MAP_FIXED) {
519 vm_offset_t start, end;
520 start = addr;
521 end = addr + len;
522
523 if (start != trunc_page(start)) {
524 error = freebsd32_mmap_partial(td, start,
525 round_page(start), prot,
526 fd, pos);
527 if (fd != -1)
528 pos += round_page(start) - start;
529 start = round_page(start);
530 }
531 if (end != round_page(end)) {
532 vm_offset_t t = trunc_page(end);
533 error = freebsd32_mmap_partial(td, t, end,
534 prot, fd,
535 pos + t - start);
536 end = trunc_page(end);
537 }
538 if (end > start && fd != -1 && (pos & PAGE_MASK)) {
539 /*
540 * We can't map this region at all. The specified
541 * address doesn't have the same alignment as the file
542 * position. Fake the mapping by simply reading the
543 * entire region into memory. First we need to make
544 * sure the region exists.
545 */
546 vm_map_t map;
547 struct pread_args r;
548 int rv;
549
550 prot |= VM_PROT_WRITE;
551 map = &td->td_proc->p_vmspace->vm_map;
552 rv = vm_map_remove(map, start, end);
553 if (rv != KERN_SUCCESS)
554 return (EINVAL);
555 rv = vm_map_find(map, NULL, 0, &start, end - start,
556 0, VMFS_NO_SPACE, prot, VM_PROT_ALL, 0);
557 if (rv != KERN_SUCCESS)
558 return (EINVAL);
559 r.fd = fd;
560 r.buf = (void *) start;
561 r.nbyte = end - start;
562 r.offset = pos;
563 error = sys_pread(td, &r);
564 if (error)
565 return (error);
566
567 td->td_retval[0] = addr;
568 return (0);
569 }
570 if (end == start) {
571 /*
572 * After dealing with the ragged ends, there
573 * might be none left.
574 */
575 td->td_retval[0] = addr;
576 return (0);
577 }
578 addr = start;
579 len = end - start;
580 }
581 #endif
582
583 #if defined(__amd64__) || defined(__ia64__)
584 if (i386_read_exec && (prot & PROT_READ))
585 prot |= PROT_EXEC;
586 #endif
587
588 ap.addr = (void *) addr;
589 ap.len = len;
590 ap.prot = prot;
591 ap.flags = flags;
592 ap.fd = fd;
593 ap.pos = pos;
594
595 return (sys_mmap(td, &ap));
596 }
597
598 #ifdef COMPAT_FREEBSD6
599 int
600 freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap)
601 {
602 struct freebsd32_mmap_args ap;
603
604 ap.addr = uap->addr;
605 ap.len = uap->len;
606 ap.prot = uap->prot;
607 ap.flags = uap->flags;
608 ap.fd = uap->fd;
609 ap.pos1 = uap->pos1;
610 ap.pos2 = uap->pos2;
611
612 return (freebsd32_mmap(td, &ap));
613 }
614 #endif
615
616 int
617 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap)
618 {
619 struct itimerval itv, oitv, *itvp;
620 struct itimerval32 i32;
621 int error;
622
623 if (uap->itv != NULL) {
624 error = copyin(uap->itv, &i32, sizeof(i32));
625 if (error)
626 return (error);
627 TV_CP(i32, itv, it_interval);
628 TV_CP(i32, itv, it_value);
629 itvp = &itv;
630 } else
631 itvp = NULL;
632 error = kern_setitimer(td, uap->which, itvp, &oitv);
633 if (error || uap->oitv == NULL)
634 return (error);
635 TV_CP(oitv, i32, it_interval);
636 TV_CP(oitv, i32, it_value);
637 return (copyout(&i32, uap->oitv, sizeof(i32)));
638 }
639
640 int
641 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap)
642 {
643 struct itimerval itv;
644 struct itimerval32 i32;
645 int error;
646
647 error = kern_getitimer(td, uap->which, &itv);
648 if (error || uap->itv == NULL)
649 return (error);
650 TV_CP(itv, i32, it_interval);
651 TV_CP(itv, i32, it_value);
652 return (copyout(&i32, uap->itv, sizeof(i32)));
653 }
654
655 int
656 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap)
657 {
658 struct timeval32 tv32;
659 struct timeval tv, *tvp;
660 int error;
661
662 if (uap->tv != NULL) {
663 error = copyin(uap->tv, &tv32, sizeof(tv32));
664 if (error)
665 return (error);
666 CP(tv32, tv, tv_sec);
667 CP(tv32, tv, tv_usec);
668 tvp = &tv;
669 } else
670 tvp = NULL;
671 /*
672 * XXX Do pointers need PTRIN()?
673 */
674 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp,
675 sizeof(int32_t) * 8));
676 }
677
678 int
679 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap)
680 {
681 struct timespec32 ts32;
682 struct timespec ts;
683 struct timeval tv, *tvp;
684 sigset_t set, *uset;
685 int error;
686
687 if (uap->ts != NULL) {
688 error = copyin(uap->ts, &ts32, sizeof(ts32));
689 if (error != 0)
690 return (error);
691 CP(ts32, ts, tv_sec);
692 CP(ts32, ts, tv_nsec);
693 TIMESPEC_TO_TIMEVAL(&tv, &ts);
694 tvp = &tv;
695 } else
696 tvp = NULL;
697 if (uap->sm != NULL) {
698 error = copyin(uap->sm, &set, sizeof(set));
699 if (error != 0)
700 return (error);
701 uset = &set;
702 } else
703 uset = NULL;
704 /*
705 * XXX Do pointers need PTRIN()?
706 */
707 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp,
708 uset, sizeof(int32_t) * 8);
709 return (error);
710 }
711
712 /*
713 * Copy 'count' items into the destination list pointed to by uap->eventlist.
714 */
715 static int
716 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count)
717 {
718 struct freebsd32_kevent_args *uap;
719 struct kevent32 ks32[KQ_NEVENTS];
720 int i, error = 0;
721
722 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
723 uap = (struct freebsd32_kevent_args *)arg;
724
725 for (i = 0; i < count; i++) {
726 CP(kevp[i], ks32[i], ident);
727 CP(kevp[i], ks32[i], filter);
728 CP(kevp[i], ks32[i], flags);
729 CP(kevp[i], ks32[i], fflags);
730 CP(kevp[i], ks32[i], data);
731 PTROUT_CP(kevp[i], ks32[i], udata);
732 }
733 error = copyout(ks32, uap->eventlist, count * sizeof *ks32);
734 if (error == 0)
735 uap->eventlist += count;
736 return (error);
737 }
738
739 /*
740 * Copy 'count' items from the list pointed to by uap->changelist.
741 */
742 static int
743 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count)
744 {
745 struct freebsd32_kevent_args *uap;
746 struct kevent32 ks32[KQ_NEVENTS];
747 int i, error = 0;
748
749 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
750 uap = (struct freebsd32_kevent_args *)arg;
751
752 error = copyin(uap->changelist, ks32, count * sizeof *ks32);
753 if (error)
754 goto done;
755 uap->changelist += count;
756
757 for (i = 0; i < count; i++) {
758 CP(ks32[i], kevp[i], ident);
759 CP(ks32[i], kevp[i], filter);
760 CP(ks32[i], kevp[i], flags);
761 CP(ks32[i], kevp[i], fflags);
762 CP(ks32[i], kevp[i], data);
763 PTRIN_CP(ks32[i], kevp[i], udata);
764 }
765 done:
766 return (error);
767 }
768
769 int
770 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap)
771 {
772 struct timespec32 ts32;
773 struct timespec ts, *tsp;
774 struct kevent_copyops k_ops = { uap,
775 freebsd32_kevent_copyout,
776 freebsd32_kevent_copyin};
777 int error;
778
779
780 if (uap->timeout) {
781 error = copyin(uap->timeout, &ts32, sizeof(ts32));
782 if (error)
783 return (error);
784 CP(ts32, ts, tv_sec);
785 CP(ts32, ts, tv_nsec);
786 tsp = &ts;
787 } else
788 tsp = NULL;
789 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents,
790 &k_ops, tsp);
791 return (error);
792 }
793
794 int
795 freebsd32_gettimeofday(struct thread *td,
796 struct freebsd32_gettimeofday_args *uap)
797 {
798 struct timeval atv;
799 struct timeval32 atv32;
800 struct timezone rtz;
801 int error = 0;
802
803 if (uap->tp) {
804 microtime(&atv);
805 CP(atv, atv32, tv_sec);
806 CP(atv, atv32, tv_usec);
807 error = copyout(&atv32, uap->tp, sizeof (atv32));
808 }
809 if (error == 0 && uap->tzp != NULL) {
810 rtz.tz_minuteswest = tz_minuteswest;
811 rtz.tz_dsttime = tz_dsttime;
812 error = copyout(&rtz, uap->tzp, sizeof (rtz));
813 }
814 return (error);
815 }
816
817 int
818 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap)
819 {
820 struct rusage32 s32;
821 struct rusage s;
822 int error;
823
824 error = kern_getrusage(td, uap->who, &s);
825 if (error)
826 return (error);
827 if (uap->rusage != NULL) {
828 freebsd32_rusage_out(&s, &s32);
829 error = copyout(&s32, uap->rusage, sizeof(s32));
830 }
831 return (error);
832 }
833
834 static int
835 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop)
836 {
837 struct iovec32 iov32;
838 struct iovec *iov;
839 struct uio *uio;
840 u_int iovlen;
841 int error, i;
842
843 *uiop = NULL;
844 if (iovcnt > UIO_MAXIOV)
845 return (EINVAL);
846 iovlen = iovcnt * sizeof(struct iovec);
847 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK);
848 iov = (struct iovec *)(uio + 1);
849 for (i = 0; i < iovcnt; i++) {
850 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32));
851 if (error) {
852 free(uio, M_IOV);
853 return (error);
854 }
855 iov[i].iov_base = PTRIN(iov32.iov_base);
856 iov[i].iov_len = iov32.iov_len;
857 }
858 uio->uio_iov = iov;
859 uio->uio_iovcnt = iovcnt;
860 uio->uio_segflg = UIO_USERSPACE;
861 uio->uio_offset = -1;
862 uio->uio_resid = 0;
863 for (i = 0; i < iovcnt; i++) {
864 if (iov->iov_len > INT_MAX - uio->uio_resid) {
865 free(uio, M_IOV);
866 return (EINVAL);
867 }
868 uio->uio_resid += iov->iov_len;
869 iov++;
870 }
871 *uiop = uio;
872 return (0);
873 }
874
875 int
876 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap)
877 {
878 struct uio *auio;
879 int error;
880
881 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
882 if (error)
883 return (error);
884 error = kern_readv(td, uap->fd, auio);
885 free(auio, M_IOV);
886 return (error);
887 }
888
889 int
890 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap)
891 {
892 struct uio *auio;
893 int error;
894
895 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
896 if (error)
897 return (error);
898 error = kern_writev(td, uap->fd, auio);
899 free(auio, M_IOV);
900 return (error);
901 }
902
903 int
904 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap)
905 {
906 struct uio *auio;
907 int error;
908
909 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
910 if (error)
911 return (error);
912 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset));
913 free(auio, M_IOV);
914 return (error);
915 }
916
917 int
918 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap)
919 {
920 struct uio *auio;
921 int error;
922
923 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
924 if (error)
925 return (error);
926 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset));
927 free(auio, M_IOV);
928 return (error);
929 }
930
931 int
932 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp,
933 int error)
934 {
935 struct iovec32 iov32;
936 struct iovec *iov;
937 u_int iovlen;
938 int i;
939
940 *iovp = NULL;
941 if (iovcnt > UIO_MAXIOV)
942 return (error);
943 iovlen = iovcnt * sizeof(struct iovec);
944 iov = malloc(iovlen, M_IOV, M_WAITOK);
945 for (i = 0; i < iovcnt; i++) {
946 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32));
947 if (error) {
948 free(iov, M_IOV);
949 return (error);
950 }
951 iov[i].iov_base = PTRIN(iov32.iov_base);
952 iov[i].iov_len = iov32.iov_len;
953 }
954 *iovp = iov;
955 return (0);
956 }
957
958 static int
959 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg)
960 {
961 struct msghdr32 m32;
962 int error;
963
964 error = copyin(msg32, &m32, sizeof(m32));
965 if (error)
966 return (error);
967 msg->msg_name = PTRIN(m32.msg_name);
968 msg->msg_namelen = m32.msg_namelen;
969 msg->msg_iov = PTRIN(m32.msg_iov);
970 msg->msg_iovlen = m32.msg_iovlen;
971 msg->msg_control = PTRIN(m32.msg_control);
972 msg->msg_controllen = m32.msg_controllen;
973 msg->msg_flags = m32.msg_flags;
974 return (0);
975 }
976
977 static int
978 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32)
979 {
980 struct msghdr32 m32;
981 int error;
982
983 m32.msg_name = PTROUT(msg->msg_name);
984 m32.msg_namelen = msg->msg_namelen;
985 m32.msg_iov = PTROUT(msg->msg_iov);
986 m32.msg_iovlen = msg->msg_iovlen;
987 m32.msg_control = PTROUT(msg->msg_control);
988 m32.msg_controllen = msg->msg_controllen;
989 m32.msg_flags = msg->msg_flags;
990 error = copyout(&m32, msg32, sizeof(m32));
991 return (error);
992 }
993
994 #ifndef __mips__
995 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1)
996 #else
997 #define FREEBSD32_ALIGNBYTES (sizeof(long) - 1)
998 #endif
999 #define FREEBSD32_ALIGN(p) \
1000 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES)
1001 #define FREEBSD32_CMSG_SPACE(l) \
1002 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l))
1003
1004 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \
1005 FREEBSD32_ALIGN(sizeof(struct cmsghdr)))
1006 static int
1007 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control)
1008 {
1009 struct cmsghdr *cm;
1010 void *data;
1011 socklen_t clen, datalen;
1012 int error;
1013 caddr_t ctlbuf;
1014 int len, maxlen, copylen;
1015 struct mbuf *m;
1016 error = 0;
1017
1018 len = msg->msg_controllen;
1019 maxlen = msg->msg_controllen;
1020 msg->msg_controllen = 0;
1021
1022 m = control;
1023 ctlbuf = msg->msg_control;
1024
1025 while (m && len > 0) {
1026 cm = mtod(m, struct cmsghdr *);
1027 clen = m->m_len;
1028
1029 while (cm != NULL) {
1030
1031 if (sizeof(struct cmsghdr) > clen ||
1032 cm->cmsg_len > clen) {
1033 error = EINVAL;
1034 break;
1035 }
1036
1037 data = CMSG_DATA(cm);
1038 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data;
1039
1040 /* Adjust message length */
1041 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) +
1042 datalen;
1043
1044
1045 /* Copy cmsghdr */
1046 copylen = sizeof(struct cmsghdr);
1047 if (len < copylen) {
1048 msg->msg_flags |= MSG_CTRUNC;
1049 copylen = len;
1050 }
1051
1052 error = copyout(cm,ctlbuf,copylen);
1053 if (error)
1054 goto exit;
1055
1056 ctlbuf += FREEBSD32_ALIGN(copylen);
1057 len -= FREEBSD32_ALIGN(copylen);
1058
1059 if (len <= 0)
1060 break;
1061
1062 /* Copy data */
1063 copylen = datalen;
1064 if (len < copylen) {
1065 msg->msg_flags |= MSG_CTRUNC;
1066 copylen = len;
1067 }
1068
1069 error = copyout(data,ctlbuf,copylen);
1070 if (error)
1071 goto exit;
1072
1073 ctlbuf += FREEBSD32_ALIGN(copylen);
1074 len -= FREEBSD32_ALIGN(copylen);
1075
1076 if (CMSG_SPACE(datalen) < clen) {
1077 clen -= CMSG_SPACE(datalen);
1078 cm = (struct cmsghdr *)
1079 ((caddr_t)cm + CMSG_SPACE(datalen));
1080 } else {
1081 clen = 0;
1082 cm = NULL;
1083 }
1084 }
1085 m = m->m_next;
1086 }
1087
1088 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control;
1089
1090 exit:
1091 return (error);
1092
1093 }
1094
1095 int
1096 freebsd32_recvmsg(td, uap)
1097 struct thread *td;
1098 struct freebsd32_recvmsg_args /* {
1099 int s;
1100 struct msghdr32 *msg;
1101 int flags;
1102 } */ *uap;
1103 {
1104 struct msghdr msg;
1105 struct msghdr32 m32;
1106 struct iovec *uiov, *iov;
1107 struct mbuf *control = NULL;
1108 struct mbuf **controlp;
1109
1110 int error;
1111 error = copyin(uap->msg, &m32, sizeof(m32));
1112 if (error)
1113 return (error);
1114 error = freebsd32_copyinmsghdr(uap->msg, &msg);
1115 if (error)
1116 return (error);
1117 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov,
1118 EMSGSIZE);
1119 if (error)
1120 return (error);
1121 msg.msg_flags = uap->flags;
1122 uiov = msg.msg_iov;
1123 msg.msg_iov = iov;
1124
1125 controlp = (msg.msg_control != NULL) ? &control : NULL;
1126 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp);
1127 if (error == 0) {
1128 msg.msg_iov = uiov;
1129
1130 if (control != NULL)
1131 error = freebsd32_copy_msg_out(&msg, control);
1132 else
1133 msg.msg_controllen = 0;
1134
1135 if (error == 0)
1136 error = freebsd32_copyoutmsghdr(&msg, uap->msg);
1137 }
1138 free(iov, M_IOV);
1139
1140 if (control != NULL)
1141 m_freem(control);
1142
1143 return (error);
1144 }
1145
1146 /*
1147 * Copy-in the array of control messages constructed using alignment
1148 * and padding suitable for a 32-bit environment and construct an
1149 * mbuf using alignment and padding suitable for a 64-bit kernel.
1150 * The alignment and padding are defined indirectly by CMSG_DATA(),
1151 * CMSG_SPACE() and CMSG_LEN().
1152 */
1153 static int
1154 freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen)
1155 {
1156 struct mbuf *m;
1157 void *md;
1158 u_int idx, len, msglen;
1159 int error;
1160
1161 buflen = FREEBSD32_ALIGN(buflen);
1162
1163 if (buflen > MCLBYTES)
1164 return (EINVAL);
1165
1166 /*
1167 * Iterate over the buffer and get the length of each message
1168 * in there. This has 32-bit alignment and padding. Use it to
1169 * determine the length of these messages when using 64-bit
1170 * alignment and padding.
1171 */
1172 idx = 0;
1173 len = 0;
1174 while (idx < buflen) {
1175 error = copyin(buf + idx, &msglen, sizeof(msglen));
1176 if (error)
1177 return (error);
1178 if (msglen < sizeof(struct cmsghdr))
1179 return (EINVAL);
1180 msglen = FREEBSD32_ALIGN(msglen);
1181 if (idx + msglen > buflen)
1182 return (EINVAL);
1183 idx += msglen;
1184 msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) -
1185 FREEBSD32_ALIGN(sizeof(struct cmsghdr));
1186 len += CMSG_ALIGN(msglen);
1187 }
1188
1189 if (len > MCLBYTES)
1190 return (EINVAL);
1191
1192 m = m_get(M_WAITOK, MT_CONTROL);
1193 if (len > MLEN)
1194 MCLGET(m, M_WAITOK);
1195 m->m_len = len;
1196
1197 md = mtod(m, void *);
1198 while (buflen > 0) {
1199 error = copyin(buf, md, sizeof(struct cmsghdr));
1200 if (error)
1201 break;
1202 msglen = *(u_int *)md;
1203 msglen = FREEBSD32_ALIGN(msglen);
1204
1205 /* Modify the message length to account for alignment. */
1206 *(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) -
1207 FREEBSD32_ALIGN(sizeof(struct cmsghdr));
1208
1209 md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr));
1210 buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr));
1211 buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr));
1212
1213 msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr));
1214 if (msglen > 0) {
1215 error = copyin(buf, md, msglen);
1216 if (error)
1217 break;
1218 md = (char *)md + CMSG_ALIGN(msglen);
1219 buf += msglen;
1220 buflen -= msglen;
1221 }
1222 }
1223
1224 if (error)
1225 m_free(m);
1226 else
1227 *mp = m;
1228 return (error);
1229 }
1230
1231 int
1232 freebsd32_sendmsg(struct thread *td,
1233 struct freebsd32_sendmsg_args *uap)
1234 {
1235 struct msghdr msg;
1236 struct msghdr32 m32;
1237 struct iovec *iov;
1238 struct mbuf *control = NULL;
1239 struct sockaddr *to = NULL;
1240 int error;
1241
1242 error = copyin(uap->msg, &m32, sizeof(m32));
1243 if (error)
1244 return (error);
1245 error = freebsd32_copyinmsghdr(uap->msg, &msg);
1246 if (error)
1247 return (error);
1248 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov,
1249 EMSGSIZE);
1250 if (error)
1251 return (error);
1252 msg.msg_iov = iov;
1253 if (msg.msg_name != NULL) {
1254 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen);
1255 if (error) {
1256 to = NULL;
1257 goto out;
1258 }
1259 msg.msg_name = to;
1260 }
1261
1262 if (msg.msg_control) {
1263 if (msg.msg_controllen < sizeof(struct cmsghdr)) {
1264 error = EINVAL;
1265 goto out;
1266 }
1267
1268 error = freebsd32_copyin_control(&control, msg.msg_control,
1269 msg.msg_controllen);
1270 if (error)
1271 goto out;
1272
1273 msg.msg_control = NULL;
1274 msg.msg_controllen = 0;
1275 }
1276
1277 error = kern_sendit(td, uap->s, &msg, uap->flags, control,
1278 UIO_USERSPACE);
1279
1280 out:
1281 free(iov, M_IOV);
1282 if (to)
1283 free(to, M_SONAME);
1284 return (error);
1285 }
1286
1287 int
1288 freebsd32_recvfrom(struct thread *td,
1289 struct freebsd32_recvfrom_args *uap)
1290 {
1291 struct msghdr msg;
1292 struct iovec aiov;
1293 int error;
1294
1295 if (uap->fromlenaddr) {
1296 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen,
1297 sizeof(msg.msg_namelen));
1298 if (error)
1299 return (error);
1300 } else {
1301 msg.msg_namelen = 0;
1302 }
1303
1304 msg.msg_name = PTRIN(uap->from);
1305 msg.msg_iov = &aiov;
1306 msg.msg_iovlen = 1;
1307 aiov.iov_base = PTRIN(uap->buf);
1308 aiov.iov_len = uap->len;
1309 msg.msg_control = NULL;
1310 msg.msg_flags = uap->flags;
1311 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL);
1312 if (error == 0 && uap->fromlenaddr)
1313 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr),
1314 sizeof (msg.msg_namelen));
1315 return (error);
1316 }
1317
1318 int
1319 freebsd32_settimeofday(struct thread *td,
1320 struct freebsd32_settimeofday_args *uap)
1321 {
1322 struct timeval32 tv32;
1323 struct timeval tv, *tvp;
1324 struct timezone tz, *tzp;
1325 int error;
1326
1327 if (uap->tv) {
1328 error = copyin(uap->tv, &tv32, sizeof(tv32));
1329 if (error)
1330 return (error);
1331 CP(tv32, tv, tv_sec);
1332 CP(tv32, tv, tv_usec);
1333 tvp = &tv;
1334 } else
1335 tvp = NULL;
1336 if (uap->tzp) {
1337 error = copyin(uap->tzp, &tz, sizeof(tz));
1338 if (error)
1339 return (error);
1340 tzp = &tz;
1341 } else
1342 tzp = NULL;
1343 return (kern_settimeofday(td, tvp, tzp));
1344 }
1345
1346 int
1347 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap)
1348 {
1349 struct timeval32 s32[2];
1350 struct timeval s[2], *sp;
1351 int error;
1352
1353 if (uap->tptr != NULL) {
1354 error = copyin(uap->tptr, s32, sizeof(s32));
1355 if (error)
1356 return (error);
1357 CP(s32[0], s[0], tv_sec);
1358 CP(s32[0], s[0], tv_usec);
1359 CP(s32[1], s[1], tv_sec);
1360 CP(s32[1], s[1], tv_usec);
1361 sp = s;
1362 } else
1363 sp = NULL;
1364 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE));
1365 }
1366
1367 int
1368 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap)
1369 {
1370 struct timeval32 s32[2];
1371 struct timeval s[2], *sp;
1372 int error;
1373
1374 if (uap->tptr != NULL) {
1375 error = copyin(uap->tptr, s32, sizeof(s32));
1376 if (error)
1377 return (error);
1378 CP(s32[0], s[0], tv_sec);
1379 CP(s32[0], s[0], tv_usec);
1380 CP(s32[1], s[1], tv_sec);
1381 CP(s32[1], s[1], tv_usec);
1382 sp = s;
1383 } else
1384 sp = NULL;
1385 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE));
1386 }
1387
1388 int
1389 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap)
1390 {
1391 struct timeval32 s32[2];
1392 struct timeval s[2], *sp;
1393 int error;
1394
1395 if (uap->tptr != NULL) {
1396 error = copyin(uap->tptr, s32, sizeof(s32));
1397 if (error)
1398 return (error);
1399 CP(s32[0], s[0], tv_sec);
1400 CP(s32[0], s[0], tv_usec);
1401 CP(s32[1], s[1], tv_sec);
1402 CP(s32[1], s[1], tv_usec);
1403 sp = s;
1404 } else
1405 sp = NULL;
1406 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE));
1407 }
1408
1409 int
1410 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap)
1411 {
1412 struct timeval32 s32[2];
1413 struct timeval s[2], *sp;
1414 int error;
1415
1416 if (uap->times != NULL) {
1417 error = copyin(uap->times, s32, sizeof(s32));
1418 if (error)
1419 return (error);
1420 CP(s32[0], s[0], tv_sec);
1421 CP(s32[0], s[0], tv_usec);
1422 CP(s32[1], s[1], tv_sec);
1423 CP(s32[1], s[1], tv_usec);
1424 sp = s;
1425 } else
1426 sp = NULL;
1427 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE,
1428 sp, UIO_SYSSPACE));
1429 }
1430
1431 int
1432 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap)
1433 {
1434 struct timeval32 tv32;
1435 struct timeval delta, olddelta, *deltap;
1436 int error;
1437
1438 if (uap->delta) {
1439 error = copyin(uap->delta, &tv32, sizeof(tv32));
1440 if (error)
1441 return (error);
1442 CP(tv32, delta, tv_sec);
1443 CP(tv32, delta, tv_usec);
1444 deltap = δ
1445 } else
1446 deltap = NULL;
1447 error = kern_adjtime(td, deltap, &olddelta);
1448 if (uap->olddelta && error == 0) {
1449 CP(olddelta, tv32, tv_sec);
1450 CP(olddelta, tv32, tv_usec);
1451 error = copyout(&tv32, uap->olddelta, sizeof(tv32));
1452 }
1453 return (error);
1454 }
1455
1456 #ifdef COMPAT_FREEBSD4
1457 int
1458 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap)
1459 {
1460 struct statfs32 s32;
1461 struct statfs s;
1462 int error;
1463
1464 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s);
1465 if (error)
1466 return (error);
1467 copy_statfs(&s, &s32);
1468 return (copyout(&s32, uap->buf, sizeof(s32)));
1469 }
1470 #endif
1471
1472 #ifdef COMPAT_FREEBSD4
1473 int
1474 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap)
1475 {
1476 struct statfs32 s32;
1477 struct statfs s;
1478 int error;
1479
1480 error = kern_fstatfs(td, uap->fd, &s);
1481 if (error)
1482 return (error);
1483 copy_statfs(&s, &s32);
1484 return (copyout(&s32, uap->buf, sizeof(s32)));
1485 }
1486 #endif
1487
1488 #ifdef COMPAT_FREEBSD4
1489 int
1490 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap)
1491 {
1492 struct statfs32 s32;
1493 struct statfs s;
1494 fhandle_t fh;
1495 int error;
1496
1497 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0)
1498 return (error);
1499 error = kern_fhstatfs(td, fh, &s);
1500 if (error)
1501 return (error);
1502 copy_statfs(&s, &s32);
1503 return (copyout(&s32, uap->buf, sizeof(s32)));
1504 }
1505 #endif
1506
1507 int
1508 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap)
1509 {
1510 struct pread_args ap;
1511
1512 ap.fd = uap->fd;
1513 ap.buf = uap->buf;
1514 ap.nbyte = uap->nbyte;
1515 ap.offset = PAIR32TO64(off_t,uap->offset);
1516 return (sys_pread(td, &ap));
1517 }
1518
1519 int
1520 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap)
1521 {
1522 struct pwrite_args ap;
1523
1524 ap.fd = uap->fd;
1525 ap.buf = uap->buf;
1526 ap.nbyte = uap->nbyte;
1527 ap.offset = PAIR32TO64(off_t,uap->offset);
1528 return (sys_pwrite(td, &ap));
1529 }
1530
1531 #ifdef COMPAT_43
1532 int
1533 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap)
1534 {
1535 struct lseek_args nuap;
1536
1537 nuap.fd = uap->fd;
1538 nuap.offset = uap->offset;
1539 nuap.whence = uap->whence;
1540 return (sys_lseek(td, &nuap));
1541 }
1542 #endif
1543
1544 int
1545 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap)
1546 {
1547 int error;
1548 struct lseek_args ap;
1549 off_t pos;
1550
1551 ap.fd = uap->fd;
1552 ap.offset = PAIR32TO64(off_t,uap->offset);
1553 ap.whence = uap->whence;
1554 error = sys_lseek(td, &ap);
1555 /* Expand the quad return into two parts for eax and edx */
1556 pos = *(off_t *)(td->td_retval);
1557 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */
1558 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */
1559 return error;
1560 }
1561
1562 int
1563 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap)
1564 {
1565 struct truncate_args ap;
1566
1567 ap.path = uap->path;
1568 ap.length = PAIR32TO64(off_t,uap->length);
1569 return (sys_truncate(td, &ap));
1570 }
1571
1572 int
1573 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap)
1574 {
1575 struct ftruncate_args ap;
1576
1577 ap.fd = uap->fd;
1578 ap.length = PAIR32TO64(off_t,uap->length);
1579 return (sys_ftruncate(td, &ap));
1580 }
1581
1582 #ifdef COMPAT_43
1583 int
1584 ofreebsd32_getdirentries(struct thread *td,
1585 struct ofreebsd32_getdirentries_args *uap)
1586 {
1587 struct ogetdirentries_args ap;
1588 int error;
1589 long loff;
1590 int32_t loff_cut;
1591
1592 ap.fd = uap->fd;
1593 ap.buf = uap->buf;
1594 ap.count = uap->count;
1595 ap.basep = NULL;
1596 error = kern_ogetdirentries(td, &ap, &loff);
1597 if (error == 0) {
1598 loff_cut = loff;
1599 error = copyout(&loff_cut, uap->basep, sizeof(int32_t));
1600 }
1601 return (error);
1602 }
1603 #endif
1604
1605 int
1606 freebsd32_getdirentries(struct thread *td,
1607 struct freebsd32_getdirentries_args *uap)
1608 {
1609 long base;
1610 int32_t base32;
1611 int error;
1612
1613 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base,
1614 NULL, UIO_USERSPACE);
1615 if (error)
1616 return (error);
1617 if (uap->basep != NULL) {
1618 base32 = base;
1619 error = copyout(&base32, uap->basep, sizeof(int32_t));
1620 }
1621 return (error);
1622 }
1623
1624 #ifdef COMPAT_FREEBSD6
1625 /* versions with the 'int pad' argument */
1626 int
1627 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap)
1628 {
1629 struct pread_args ap;
1630
1631 ap.fd = uap->fd;
1632 ap.buf = uap->buf;
1633 ap.nbyte = uap->nbyte;
1634 ap.offset = PAIR32TO64(off_t,uap->offset);
1635 return (sys_pread(td, &ap));
1636 }
1637
1638 int
1639 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap)
1640 {
1641 struct pwrite_args ap;
1642
1643 ap.fd = uap->fd;
1644 ap.buf = uap->buf;
1645 ap.nbyte = uap->nbyte;
1646 ap.offset = PAIR32TO64(off_t,uap->offset);
1647 return (sys_pwrite(td, &ap));
1648 }
1649
1650 int
1651 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap)
1652 {
1653 int error;
1654 struct lseek_args ap;
1655 off_t pos;
1656
1657 ap.fd = uap->fd;
1658 ap.offset = PAIR32TO64(off_t,uap->offset);
1659 ap.whence = uap->whence;
1660 error = sys_lseek(td, &ap);
1661 /* Expand the quad return into two parts for eax and edx */
1662 pos = *(off_t *)(td->td_retval);
1663 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */
1664 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */
1665 return error;
1666 }
1667
1668 int
1669 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap)
1670 {
1671 struct truncate_args ap;
1672
1673 ap.path = uap->path;
1674 ap.length = PAIR32TO64(off_t,uap->length);
1675 return (sys_truncate(td, &ap));
1676 }
1677
1678 int
1679 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap)
1680 {
1681 struct ftruncate_args ap;
1682
1683 ap.fd = uap->fd;
1684 ap.length = PAIR32TO64(off_t,uap->length);
1685 return (sys_ftruncate(td, &ap));
1686 }
1687 #endif /* COMPAT_FREEBSD6 */
1688
1689 struct sf_hdtr32 {
1690 uint32_t headers;
1691 int hdr_cnt;
1692 uint32_t trailers;
1693 int trl_cnt;
1694 };
1695
1696 static int
1697 freebsd32_do_sendfile(struct thread *td,
1698 struct freebsd32_sendfile_args *uap, int compat)
1699 {
1700 struct sf_hdtr32 hdtr32;
1701 struct sf_hdtr hdtr;
1702 struct uio *hdr_uio, *trl_uio;
1703 struct iovec32 *iov32;
1704 struct file *fp;
1705 cap_rights_t rights;
1706 off_t offset;
1707 int error;
1708
1709 offset = PAIR32TO64(off_t, uap->offset);
1710 if (offset < 0)
1711 return (EINVAL);
1712
1713 hdr_uio = trl_uio = NULL;
1714
1715 if (uap->hdtr != NULL) {
1716 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32));
1717 if (error)
1718 goto out;
1719 PTRIN_CP(hdtr32, hdtr, headers);
1720 CP(hdtr32, hdtr, hdr_cnt);
1721 PTRIN_CP(hdtr32, hdtr, trailers);
1722 CP(hdtr32, hdtr, trl_cnt);
1723
1724 if (hdtr.headers != NULL) {
1725 iov32 = PTRIN(hdtr32.headers);
1726 error = freebsd32_copyinuio(iov32,
1727 hdtr32.hdr_cnt, &hdr_uio);
1728 if (error)
1729 goto out;
1730 }
1731 if (hdtr.trailers != NULL) {
1732 iov32 = PTRIN(hdtr32.trailers);
1733 error = freebsd32_copyinuio(iov32,
1734 hdtr32.trl_cnt, &trl_uio);
1735 if (error)
1736 goto out;
1737 }
1738 }
1739
1740 AUDIT_ARG_FD(uap->fd);
1741
1742 if ((error = fget_read(td, uap->fd,
1743 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) {
1744 goto out;
1745 }
1746
1747 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset,
1748 uap->nbytes, uap->sbytes, uap->flags, compat ? SFK_COMPAT : 0, td);
1749 fdrop(fp, td);
1750
1751 out:
1752 if (hdr_uio)
1753 free(hdr_uio, M_IOV);
1754 if (trl_uio)
1755 free(trl_uio, M_IOV);
1756 return (error);
1757 }
1758
1759 #ifdef COMPAT_FREEBSD4
1760 int
1761 freebsd4_freebsd32_sendfile(struct thread *td,
1762 struct freebsd4_freebsd32_sendfile_args *uap)
1763 {
1764 return (freebsd32_do_sendfile(td,
1765 (struct freebsd32_sendfile_args *)uap, 1));
1766 }
1767 #endif
1768
1769 int
1770 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap)
1771 {
1772
1773 return (freebsd32_do_sendfile(td, uap, 0));
1774 }
1775
1776 static void
1777 copy_stat(struct stat *in, struct stat32 *out)
1778 {
1779
1780 CP(*in, *out, st_dev);
1781 CP(*in, *out, st_ino);
1782 CP(*in, *out, st_mode);
1783 CP(*in, *out, st_nlink);
1784 CP(*in, *out, st_uid);
1785 CP(*in, *out, st_gid);
1786 CP(*in, *out, st_rdev);
1787 TS_CP(*in, *out, st_atim);
1788 TS_CP(*in, *out, st_mtim);
1789 TS_CP(*in, *out, st_ctim);
1790 CP(*in, *out, st_size);
1791 CP(*in, *out, st_blocks);
1792 CP(*in, *out, st_blksize);
1793 CP(*in, *out, st_flags);
1794 CP(*in, *out, st_gen);
1795 TS_CP(*in, *out, st_birthtim);
1796 }
1797
1798 #ifdef COMPAT_43
1799 static void
1800 copy_ostat(struct stat *in, struct ostat32 *out)
1801 {
1802
1803 CP(*in, *out, st_dev);
1804 CP(*in, *out, st_ino);
1805 CP(*in, *out, st_mode);
1806 CP(*in, *out, st_nlink);
1807 CP(*in, *out, st_uid);
1808 CP(*in, *out, st_gid);
1809 CP(*in, *out, st_rdev);
1810 CP(*in, *out, st_size);
1811 TS_CP(*in, *out, st_atim);
1812 TS_CP(*in, *out, st_mtim);
1813 TS_CP(*in, *out, st_ctim);
1814 CP(*in, *out, st_blksize);
1815 CP(*in, *out, st_blocks);
1816 CP(*in, *out, st_flags);
1817 CP(*in, *out, st_gen);
1818 }
1819 #endif
1820
1821 int
1822 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap)
1823 {
1824 struct stat sb;
1825 struct stat32 sb32;
1826 int error;
1827
1828 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb);
1829 if (error)
1830 return (error);
1831 copy_stat(&sb, &sb32);
1832 error = copyout(&sb32, uap->ub, sizeof (sb32));
1833 return (error);
1834 }
1835
1836 #ifdef COMPAT_43
1837 int
1838 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap)
1839 {
1840 struct stat sb;
1841 struct ostat32 sb32;
1842 int error;
1843
1844 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb);
1845 if (error)
1846 return (error);
1847 copy_ostat(&sb, &sb32);
1848 error = copyout(&sb32, uap->ub, sizeof (sb32));
1849 return (error);
1850 }
1851 #endif
1852
1853 int
1854 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap)
1855 {
1856 struct stat ub;
1857 struct stat32 ub32;
1858 int error;
1859
1860 error = kern_fstat(td, uap->fd, &ub);
1861 if (error)
1862 return (error);
1863 copy_stat(&ub, &ub32);
1864 error = copyout(&ub32, uap->ub, sizeof(ub32));
1865 return (error);
1866 }
1867
1868 #ifdef COMPAT_43
1869 int
1870 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap)
1871 {
1872 struct stat ub;
1873 struct ostat32 ub32;
1874 int error;
1875
1876 error = kern_fstat(td, uap->fd, &ub);
1877 if (error)
1878 return (error);
1879 copy_ostat(&ub, &ub32);
1880 error = copyout(&ub32, uap->ub, sizeof(ub32));
1881 return (error);
1882 }
1883 #endif
1884
1885 int
1886 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap)
1887 {
1888 struct stat ub;
1889 struct stat32 ub32;
1890 int error;
1891
1892 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub);
1893 if (error)
1894 return (error);
1895 copy_stat(&ub, &ub32);
1896 error = copyout(&ub32, uap->buf, sizeof(ub32));
1897 return (error);
1898 }
1899
1900 int
1901 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap)
1902 {
1903 struct stat sb;
1904 struct stat32 sb32;
1905 int error;
1906
1907 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb);
1908 if (error)
1909 return (error);
1910 copy_stat(&sb, &sb32);
1911 error = copyout(&sb32, uap->ub, sizeof (sb32));
1912 return (error);
1913 }
1914
1915 #ifdef COMPAT_43
1916 int
1917 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap)
1918 {
1919 struct stat sb;
1920 struct ostat32 sb32;
1921 int error;
1922
1923 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb);
1924 if (error)
1925 return (error);
1926 copy_ostat(&sb, &sb32);
1927 error = copyout(&sb32, uap->ub, sizeof (sb32));
1928 return (error);
1929 }
1930 #endif
1931
1932 int
1933 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap)
1934 {
1935 int error, name[CTL_MAXNAME];
1936 size_t j, oldlen;
1937 uint32_t tmp;
1938
1939 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2)
1940 return (EINVAL);
1941 error = copyin(uap->name, name, uap->namelen * sizeof(int));
1942 if (error)
1943 return (error);
1944 if (uap->oldlenp) {
1945 error = fueword32(uap->oldlenp, &tmp);
1946 oldlen = tmp;
1947 } else {
1948 oldlen = 0;
1949 }
1950 if (error != 0)
1951 return (EFAULT);
1952 error = userland_sysctl(td, name, uap->namelen,
1953 uap->old, &oldlen, 1,
1954 uap->new, uap->newlen, &j, SCTL_MASK32);
1955 if (error && error != ENOMEM)
1956 return (error);
1957 if (uap->oldlenp)
1958 suword32(uap->oldlenp, j);
1959 return (0);
1960 }
1961
1962 int
1963 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap)
1964 {
1965 uint32_t version;
1966 int error;
1967 struct jail j;
1968
1969 error = copyin(uap->jail, &version, sizeof(uint32_t));
1970 if (error)
1971 return (error);
1972
1973 switch (version) {
1974 case 0:
1975 {
1976 /* FreeBSD single IPv4 jails. */
1977 struct jail32_v0 j32_v0;
1978
1979 bzero(&j, sizeof(struct jail));
1980 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0));
1981 if (error)
1982 return (error);
1983 CP(j32_v0, j, version);
1984 PTRIN_CP(j32_v0, j, path);
1985 PTRIN_CP(j32_v0, j, hostname);
1986 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */
1987 break;
1988 }
1989
1990 case 1:
1991 /*
1992 * Version 1 was used by multi-IPv4 jail implementations
1993 * that never made it into the official kernel.
1994 */
1995 return (EINVAL);
1996
1997 case 2: /* JAIL_API_VERSION */
1998 {
1999 /* FreeBSD multi-IPv4/IPv6,noIP jails. */
2000 struct jail32 j32;
2001
2002 error = copyin(uap->jail, &j32, sizeof(struct jail32));
2003 if (error)
2004 return (error);
2005 CP(j32, j, version);
2006 PTRIN_CP(j32, j, path);
2007 PTRIN_CP(j32, j, hostname);
2008 PTRIN_CP(j32, j, jailname);
2009 CP(j32, j, ip4s);
2010 CP(j32, j, ip6s);
2011 PTRIN_CP(j32, j, ip4);
2012 PTRIN_CP(j32, j, ip6);
2013 break;
2014 }
2015
2016 default:
2017 /* Sci-Fi jails are not supported, sorry. */
2018 return (EINVAL);
2019 }
2020 return (kern_jail(td, &j));
2021 }
2022
2023 int
2024 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap)
2025 {
2026 struct uio *auio;
2027 int error;
2028
2029 /* Check that we have an even number of iovecs. */
2030 if (uap->iovcnt & 1)
2031 return (EINVAL);
2032
2033 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
2034 if (error)
2035 return (error);
2036 error = kern_jail_set(td, auio, uap->flags);
2037 free(auio, M_IOV);
2038 return (error);
2039 }
2040
2041 int
2042 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap)
2043 {
2044 struct iovec32 iov32;
2045 struct uio *auio;
2046 int error, i;
2047
2048 /* Check that we have an even number of iovecs. */
2049 if (uap->iovcnt & 1)
2050 return (EINVAL);
2051
2052 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
2053 if (error)
2054 return (error);
2055 error = kern_jail_get(td, auio, uap->flags);
2056 if (error == 0)
2057 for (i = 0; i < uap->iovcnt; i++) {
2058 PTROUT_CP(auio->uio_iov[i], iov32, iov_base);
2059 CP(auio->uio_iov[i], iov32, iov_len);
2060 error = copyout(&iov32, uap->iovp + i, sizeof(iov32));
2061 if (error != 0)
2062 break;
2063 }
2064 free(auio, M_IOV);
2065 return (error);
2066 }
2067
2068 int
2069 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap)
2070 {
2071 struct sigaction32 s32;
2072 struct sigaction sa, osa, *sap;
2073 int error;
2074
2075 if (uap->act) {
2076 error = copyin(uap->act, &s32, sizeof(s32));
2077 if (error)
2078 return (error);
2079 sa.sa_handler = PTRIN(s32.sa_u);
2080 CP(s32, sa, sa_flags);
2081 CP(s32, sa, sa_mask);
2082 sap = &sa;
2083 } else
2084 sap = NULL;
2085 error = kern_sigaction(td, uap->sig, sap, &osa, 0);
2086 if (error == 0 && uap->oact != NULL) {
2087 s32.sa_u = PTROUT(osa.sa_handler);
2088 CP(osa, s32, sa_flags);
2089 CP(osa, s32, sa_mask);
2090 error = copyout(&s32, uap->oact, sizeof(s32));
2091 }
2092 return (error);
2093 }
2094
2095 #ifdef COMPAT_FREEBSD4
2096 int
2097 freebsd4_freebsd32_sigaction(struct thread *td,
2098 struct freebsd4_freebsd32_sigaction_args *uap)
2099 {
2100 struct sigaction32 s32;
2101 struct sigaction sa, osa, *sap;
2102 int error;
2103
2104 if (uap->act) {
2105 error = copyin(uap->act, &s32, sizeof(s32));
2106 if (error)
2107 return (error);
2108 sa.sa_handler = PTRIN(s32.sa_u);
2109 CP(s32, sa, sa_flags);
2110 CP(s32, sa, sa_mask);
2111 sap = &sa;
2112 } else
2113 sap = NULL;
2114 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4);
2115 if (error == 0 && uap->oact != NULL) {
2116 s32.sa_u = PTROUT(osa.sa_handler);
2117 CP(osa, s32, sa_flags);
2118 CP(osa, s32, sa_mask);
2119 error = copyout(&s32, uap->oact, sizeof(s32));
2120 }
2121 return (error);
2122 }
2123 #endif
2124
2125 #ifdef COMPAT_43
2126 struct osigaction32 {
2127 u_int32_t sa_u;
2128 osigset_t sa_mask;
2129 int sa_flags;
2130 };
2131
2132 #define ONSIG 32
2133
2134 int
2135 ofreebsd32_sigaction(struct thread *td,
2136 struct ofreebsd32_sigaction_args *uap)
2137 {
2138 struct osigaction32 s32;
2139 struct sigaction sa, osa, *sap;
2140 int error;
2141
2142 if (uap->signum <= 0 || uap->signum >= ONSIG)
2143 return (EINVAL);
2144
2145 if (uap->nsa) {
2146 error = copyin(uap->nsa, &s32, sizeof(s32));
2147 if (error)
2148 return (error);
2149 sa.sa_handler = PTRIN(s32.sa_u);
2150 CP(s32, sa, sa_flags);
2151 OSIG2SIG(s32.sa_mask, sa.sa_mask);
2152 sap = &sa;
2153 } else
2154 sap = NULL;
2155 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET);
2156 if (error == 0 && uap->osa != NULL) {
2157 s32.sa_u = PTROUT(osa.sa_handler);
2158 CP(osa, s32, sa_flags);
2159 SIG2OSIG(osa.sa_mask, s32.sa_mask);
2160 error = copyout(&s32, uap->osa, sizeof(s32));
2161 }
2162 return (error);
2163 }
2164
2165 int
2166 ofreebsd32_sigprocmask(struct thread *td,
2167 struct ofreebsd32_sigprocmask_args *uap)
2168 {
2169 sigset_t set, oset;
2170 int error;
2171
2172 OSIG2SIG(uap->mask, set);
2173 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD);
2174 SIG2OSIG(oset, td->td_retval[0]);
2175 return (error);
2176 }
2177
2178 int
2179 ofreebsd32_sigpending(struct thread *td,
2180 struct ofreebsd32_sigpending_args *uap)
2181 {
2182 struct proc *p = td->td_proc;
2183 sigset_t siglist;
2184
2185 PROC_LOCK(p);
2186 siglist = p->p_siglist;
2187 SIGSETOR(siglist, td->td_siglist);
2188 PROC_UNLOCK(p);
2189 SIG2OSIG(siglist, td->td_retval[0]);
2190 return (0);
2191 }
2192
2193 struct sigvec32 {
2194 u_int32_t sv_handler;
2195 int sv_mask;
2196 int sv_flags;
2197 };
2198
2199 int
2200 ofreebsd32_sigvec(struct thread *td,
2201 struct ofreebsd32_sigvec_args *uap)
2202 {
2203 struct sigvec32 vec;
2204 struct sigaction sa, osa, *sap;
2205 int error;
2206
2207 if (uap->signum <= 0 || uap->signum >= ONSIG)
2208 return (EINVAL);
2209
2210 if (uap->nsv) {
2211 error = copyin(uap->nsv, &vec, sizeof(vec));
2212 if (error)
2213 return (error);
2214 sa.sa_handler = PTRIN(vec.sv_handler);
2215 OSIG2SIG(vec.sv_mask, sa.sa_mask);
2216 sa.sa_flags = vec.sv_flags;
2217 sa.sa_flags ^= SA_RESTART;
2218 sap = &sa;
2219 } else
2220 sap = NULL;
2221 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET);
2222 if (error == 0 && uap->osv != NULL) {
2223 vec.sv_handler = PTROUT(osa.sa_handler);
2224 SIG2OSIG(osa.sa_mask, vec.sv_mask);
2225 vec.sv_flags = osa.sa_flags;
2226 vec.sv_flags &= ~SA_NOCLDWAIT;
2227 vec.sv_flags ^= SA_RESTART;
2228 error = copyout(&vec, uap->osv, sizeof(vec));
2229 }
2230 return (error);
2231 }
2232
2233 int
2234 ofreebsd32_sigblock(struct thread *td,
2235 struct ofreebsd32_sigblock_args *uap)
2236 {
2237 sigset_t set, oset;
2238
2239 OSIG2SIG(uap->mask, set);
2240 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0);
2241 SIG2OSIG(oset, td->td_retval[0]);
2242 return (0);
2243 }
2244
2245 int
2246 ofreebsd32_sigsetmask(struct thread *td,
2247 struct ofreebsd32_sigsetmask_args *uap)
2248 {
2249 sigset_t set, oset;
2250
2251 OSIG2SIG(uap->mask, set);
2252 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0);
2253 SIG2OSIG(oset, td->td_retval[0]);
2254 return (0);
2255 }
2256
2257 int
2258 ofreebsd32_sigsuspend(struct thread *td,
2259 struct ofreebsd32_sigsuspend_args *uap)
2260 {
2261 sigset_t mask;
2262
2263 OSIG2SIG(uap->mask, mask);
2264 return (kern_sigsuspend(td, mask));
2265 }
2266
2267 struct sigstack32 {
2268 u_int32_t ss_sp;
2269 int ss_onstack;
2270 };
2271
2272 int
2273 ofreebsd32_sigstack(struct thread *td,
2274 struct ofreebsd32_sigstack_args *uap)
2275 {
2276 struct sigstack32 s32;
2277 struct sigstack nss, oss;
2278 int error = 0, unss;
2279
2280 if (uap->nss != NULL) {
2281 error = copyin(uap->nss, &s32, sizeof(s32));
2282 if (error)
2283 return (error);
2284 nss.ss_sp = PTRIN(s32.ss_sp);
2285 CP(s32, nss, ss_onstack);
2286 unss = 1;
2287 } else {
2288 unss = 0;
2289 }
2290 oss.ss_sp = td->td_sigstk.ss_sp;
2291 oss.ss_onstack = sigonstack(cpu_getstack(td));
2292 if (unss) {
2293 td->td_sigstk.ss_sp = nss.ss_sp;
2294 td->td_sigstk.ss_size = 0;
2295 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK);
2296 td->td_pflags |= TDP_ALTSTACK;
2297 }
2298 if (uap->oss != NULL) {
2299 s32.ss_sp = PTROUT(oss.ss_sp);
2300 CP(oss, s32, ss_onstack);
2301 error = copyout(&s32, uap->oss, sizeof(s32));
2302 }
2303 return (error);
2304 }
2305 #endif
2306
2307 int
2308 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap)
2309 {
2310 struct timespec32 rmt32, rqt32;
2311 struct timespec rmt, rqt;
2312 int error;
2313
2314 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32));
2315 if (error)
2316 return (error);
2317
2318 CP(rqt32, rqt, tv_sec);
2319 CP(rqt32, rqt, tv_nsec);
2320
2321 if (uap->rmtp &&
2322 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE))
2323 return (EFAULT);
2324 error = kern_nanosleep(td, &rqt, &rmt);
2325 if (error && uap->rmtp) {
2326 int error2;
2327
2328 CP(rmt, rmt32, tv_sec);
2329 CP(rmt, rmt32, tv_nsec);
2330
2331 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32));
2332 if (error2)
2333 error = error2;
2334 }
2335 return (error);
2336 }
2337
2338 int
2339 freebsd32_clock_gettime(struct thread *td,
2340 struct freebsd32_clock_gettime_args *uap)
2341 {
2342 struct timespec ats;
2343 struct timespec32 ats32;
2344 int error;
2345
2346 error = kern_clock_gettime(td, uap->clock_id, &ats);
2347 if (error == 0) {
2348 CP(ats, ats32, tv_sec);
2349 CP(ats, ats32, tv_nsec);
2350 error = copyout(&ats32, uap->tp, sizeof(ats32));
2351 }
2352 return (error);
2353 }
2354
2355 int
2356 freebsd32_clock_settime(struct thread *td,
2357 struct freebsd32_clock_settime_args *uap)
2358 {
2359 struct timespec ats;
2360 struct timespec32 ats32;
2361 int error;
2362
2363 error = copyin(uap->tp, &ats32, sizeof(ats32));
2364 if (error)
2365 return (error);
2366 CP(ats32, ats, tv_sec);
2367 CP(ats32, ats, tv_nsec);
2368
2369 return (kern_clock_settime(td, uap->clock_id, &ats));
2370 }
2371
2372 int
2373 freebsd32_clock_getres(struct thread *td,
2374 struct freebsd32_clock_getres_args *uap)
2375 {
2376 struct timespec ts;
2377 struct timespec32 ts32;
2378 int error;
2379
2380 if (uap->tp == NULL)
2381 return (0);
2382 error = kern_clock_getres(td, uap->clock_id, &ts);
2383 if (error == 0) {
2384 CP(ts, ts32, tv_sec);
2385 CP(ts, ts32, tv_nsec);
2386 error = copyout(&ts32, uap->tp, sizeof(ts32));
2387 }
2388 return (error);
2389 }
2390
2391 int freebsd32_ktimer_create(struct thread *td,
2392 struct freebsd32_ktimer_create_args *uap)
2393 {
2394 struct sigevent32 ev32;
2395 struct sigevent ev, *evp;
2396 int error, id;
2397
2398 if (uap->evp == NULL) {
2399 evp = NULL;
2400 } else {
2401 evp = &ev;
2402 error = copyin(uap->evp, &ev32, sizeof(ev32));
2403 if (error != 0)
2404 return (error);
2405 error = convert_sigevent32(&ev32, &ev);
2406 if (error != 0)
2407 return (error);
2408 }
2409 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1);
2410 if (error == 0) {
2411 error = copyout(&id, uap->timerid, sizeof(int));
2412 if (error != 0)
2413 kern_ktimer_delete(td, id);
2414 }
2415 return (error);
2416 }
2417
2418 int
2419 freebsd32_ktimer_settime(struct thread *td,
2420 struct freebsd32_ktimer_settime_args *uap)
2421 {
2422 struct itimerspec32 val32, oval32;
2423 struct itimerspec val, oval, *ovalp;
2424 int error;
2425
2426 error = copyin(uap->value, &val32, sizeof(val32));
2427 if (error != 0)
2428 return (error);
2429 ITS_CP(val32, val);
2430 ovalp = uap->ovalue != NULL ? &oval : NULL;
2431 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp);
2432 if (error == 0 && uap->ovalue != NULL) {
2433 ITS_CP(oval, oval32);
2434 error = copyout(&oval32, uap->ovalue, sizeof(oval32));
2435 }
2436 return (error);
2437 }
2438
2439 int
2440 freebsd32_ktimer_gettime(struct thread *td,
2441 struct freebsd32_ktimer_gettime_args *uap)
2442 {
2443 struct itimerspec32 val32;
2444 struct itimerspec val;
2445 int error;
2446
2447 error = kern_ktimer_gettime(td, uap->timerid, &val);
2448 if (error == 0) {
2449 ITS_CP(val, val32);
2450 error = copyout(&val32, uap->value, sizeof(val32));
2451 }
2452 return (error);
2453 }
2454
2455 int
2456 freebsd32_clock_getcpuclockid2(struct thread *td,
2457 struct freebsd32_clock_getcpuclockid2_args *uap)
2458 {
2459 clockid_t clk_id;
2460 int error;
2461
2462 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id),
2463 uap->which, &clk_id);
2464 if (error == 0)
2465 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t));
2466 return (error);
2467 }
2468
2469 int
2470 freebsd32_thr_new(struct thread *td,
2471 struct freebsd32_thr_new_args *uap)
2472 {
2473 struct thr_param32 param32;
2474 struct thr_param param;
2475 int error;
2476
2477 if (uap->param_size < 0 ||
2478 uap->param_size > sizeof(struct thr_param32))
2479 return (EINVAL);
2480 bzero(¶m, sizeof(struct thr_param));
2481 bzero(¶m32, sizeof(struct thr_param32));
2482 error = copyin(uap->param, ¶m32, uap->param_size);
2483 if (error != 0)
2484 return (error);
2485 param.start_func = PTRIN(param32.start_func);
2486 param.arg = PTRIN(param32.arg);
2487 param.stack_base = PTRIN(param32.stack_base);
2488 param.stack_size = param32.stack_size;
2489 param.tls_base = PTRIN(param32.tls_base);
2490 param.tls_size = param32.tls_size;
2491 param.child_tid = PTRIN(param32.child_tid);
2492 param.parent_tid = PTRIN(param32.parent_tid);
2493 param.flags = param32.flags;
2494 param.rtp = PTRIN(param32.rtp);
2495 param.spare[0] = PTRIN(param32.spare[0]);
2496 param.spare[1] = PTRIN(param32.spare[1]);
2497 param.spare[2] = PTRIN(param32.spare[2]);
2498
2499 return (kern_thr_new(td, ¶m));
2500 }
2501
2502 int
2503 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap)
2504 {
2505 struct timespec32 ts32;
2506 struct timespec ts, *tsp;
2507 int error;
2508
2509 error = 0;
2510 tsp = NULL;
2511 if (uap->timeout != NULL) {
2512 error = copyin((const void *)uap->timeout, (void *)&ts32,
2513 sizeof(struct timespec32));
2514 if (error != 0)
2515 return (error);
2516 ts.tv_sec = ts32.tv_sec;
2517 ts.tv_nsec = ts32.tv_nsec;
2518 tsp = &ts;
2519 }
2520 return (kern_thr_suspend(td, tsp));
2521 }
2522
2523 void
2524 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst)
2525 {
2526 bzero(dst, sizeof(*dst));
2527 dst->si_signo = src->si_signo;
2528 dst->si_errno = src->si_errno;
2529 dst->si_code = src->si_code;
2530 dst->si_pid = src->si_pid;
2531 dst->si_uid = src->si_uid;
2532 dst->si_status = src->si_status;
2533 dst->si_addr = (uintptr_t)src->si_addr;
2534 dst->si_value.sival_int = src->si_value.sival_int;
2535 dst->si_timerid = src->si_timerid;
2536 dst->si_overrun = src->si_overrun;
2537 }
2538
2539 int
2540 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap)
2541 {
2542 struct timespec32 ts32;
2543 struct timespec ts;
2544 struct timespec *timeout;
2545 sigset_t set;
2546 ksiginfo_t ksi;
2547 struct siginfo32 si32;
2548 int error;
2549
2550 if (uap->timeout) {
2551 error = copyin(uap->timeout, &ts32, sizeof(ts32));
2552 if (error)
2553 return (error);
2554 ts.tv_sec = ts32.tv_sec;
2555 ts.tv_nsec = ts32.tv_nsec;
2556 timeout = &ts;
2557 } else
2558 timeout = NULL;
2559
2560 error = copyin(uap->set, &set, sizeof(set));
2561 if (error)
2562 return (error);
2563
2564 error = kern_sigtimedwait(td, set, &ksi, timeout);
2565 if (error)
2566 return (error);
2567
2568 if (uap->info) {
2569 siginfo_to_siginfo32(&ksi.ksi_info, &si32);
2570 error = copyout(&si32, uap->info, sizeof(struct siginfo32));
2571 }
2572
2573 if (error == 0)
2574 td->td_retval[0] = ksi.ksi_signo;
2575 return (error);
2576 }
2577
2578 /*
2579 * MPSAFE
2580 */
2581 int
2582 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap)
2583 {
2584 ksiginfo_t ksi;
2585 struct siginfo32 si32;
2586 sigset_t set;
2587 int error;
2588
2589 error = copyin(uap->set, &set, sizeof(set));
2590 if (error)
2591 return (error);
2592
2593 error = kern_sigtimedwait(td, set, &ksi, NULL);
2594 if (error)
2595 return (error);
2596
2597 if (uap->info) {
2598 siginfo_to_siginfo32(&ksi.ksi_info, &si32);
2599 error = copyout(&si32, uap->info, sizeof(struct siginfo32));
2600 }
2601 if (error == 0)
2602 td->td_retval[0] = ksi.ksi_signo;
2603 return (error);
2604 }
2605
2606 int
2607 freebsd32_cpuset_setid(struct thread *td,
2608 struct freebsd32_cpuset_setid_args *uap)
2609 {
2610 struct cpuset_setid_args ap;
2611
2612 ap.which = uap->which;
2613 ap.id = PAIR32TO64(id_t,uap->id);
2614 ap.setid = uap->setid;
2615
2616 return (sys_cpuset_setid(td, &ap));
2617 }
2618
2619 int
2620 freebsd32_cpuset_getid(struct thread *td,
2621 struct freebsd32_cpuset_getid_args *uap)
2622 {
2623 struct cpuset_getid_args ap;
2624
2625 ap.level = uap->level;
2626 ap.which = uap->which;
2627 ap.id = PAIR32TO64(id_t,uap->id);
2628 ap.setid = uap->setid;
2629
2630 return (sys_cpuset_getid(td, &ap));
2631 }
2632
2633 int
2634 freebsd32_cpuset_getaffinity(struct thread *td,
2635 struct freebsd32_cpuset_getaffinity_args *uap)
2636 {
2637 struct cpuset_getaffinity_args ap;
2638
2639 ap.level = uap->level;
2640 ap.which = uap->which;
2641 ap.id = PAIR32TO64(id_t,uap->id);
2642 ap.cpusetsize = uap->cpusetsize;
2643 ap.mask = uap->mask;
2644
2645 return (sys_cpuset_getaffinity(td, &ap));
2646 }
2647
2648 int
2649 freebsd32_cpuset_setaffinity(struct thread *td,
2650 struct freebsd32_cpuset_setaffinity_args *uap)
2651 {
2652 struct cpuset_setaffinity_args ap;
2653
2654 ap.level = uap->level;
2655 ap.which = uap->which;
2656 ap.id = PAIR32TO64(id_t,uap->id);
2657 ap.cpusetsize = uap->cpusetsize;
2658 ap.mask = uap->mask;
2659
2660 return (sys_cpuset_setaffinity(td, &ap));
2661 }
2662
2663 int
2664 freebsd32_nmount(struct thread *td,
2665 struct freebsd32_nmount_args /* {
2666 struct iovec *iovp;
2667 unsigned int iovcnt;
2668 int flags;
2669 } */ *uap)
2670 {
2671 struct uio *auio;
2672 uint64_t flags;
2673 int error;
2674
2675 /*
2676 * Mount flags are now 64-bits. On 32-bit archtectures only
2677 * 32-bits are passed in, but from here on everything handles
2678 * 64-bit flags correctly.
2679 */
2680 flags = uap->flags;
2681
2682 AUDIT_ARG_FFLAGS(flags);
2683
2684 /*
2685 * Filter out MNT_ROOTFS. We do not want clients of nmount() in
2686 * userspace to set this flag, but we must filter it out if we want
2687 * MNT_UPDATE on the root file system to work.
2688 * MNT_ROOTFS should only be set by the kernel when mounting its
2689 * root file system.
2690 */
2691 flags &= ~MNT_ROOTFS;
2692
2693 /*
2694 * check that we have an even number of iovec's
2695 * and that we have at least two options.
2696 */
2697 if ((uap->iovcnt & 1) || (uap->iovcnt < 4))
2698 return (EINVAL);
2699
2700 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
2701 if (error)
2702 return (error);
2703 error = vfs_donmount(td, flags, auio);
2704
2705 free(auio, M_IOV);
2706 return error;
2707 }
2708
2709 #if 0
2710 int
2711 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap)
2712 {
2713 struct yyy32 *p32, s32;
2714 struct yyy *p = NULL, s;
2715 struct xxx_arg ap;
2716 int error;
2717
2718 if (uap->zzz) {
2719 error = copyin(uap->zzz, &s32, sizeof(s32));
2720 if (error)
2721 return (error);
2722 /* translate in */
2723 p = &s;
2724 }
2725 error = kern_xxx(td, p);
2726 if (error)
2727 return (error);
2728 if (uap->zzz) {
2729 /* translate out */
2730 error = copyout(&s32, p32, sizeof(s32));
2731 }
2732 return (error);
2733 }
2734 #endif
2735
2736 int
2737 syscall32_register(int *offset, struct sysent *new_sysent,
2738 struct sysent *old_sysent)
2739 {
2740 if (*offset == NO_SYSCALL) {
2741 int i;
2742
2743 for (i = 1; i < SYS_MAXSYSCALL; ++i)
2744 if (freebsd32_sysent[i].sy_call ==
2745 (sy_call_t *)lkmnosys)
2746 break;
2747 if (i == SYS_MAXSYSCALL)
2748 return (ENFILE);
2749 *offset = i;
2750 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL)
2751 return (EINVAL);
2752 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys &&
2753 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys)
2754 return (EEXIST);
2755
2756 *old_sysent = freebsd32_sysent[*offset];
2757 freebsd32_sysent[*offset] = *new_sysent;
2758 return 0;
2759 }
2760
2761 int
2762 syscall32_deregister(int *offset, struct sysent *old_sysent)
2763 {
2764
2765 if (*offset)
2766 freebsd32_sysent[*offset] = *old_sysent;
2767 return 0;
2768 }
2769
2770 int
2771 syscall32_module_handler(struct module *mod, int what, void *arg)
2772 {
2773 struct syscall_module_data *data = (struct syscall_module_data*)arg;
2774 modspecific_t ms;
2775 int error;
2776
2777 switch (what) {
2778 case MOD_LOAD:
2779 error = syscall32_register(data->offset, data->new_sysent,
2780 &data->old_sysent);
2781 if (error) {
2782 /* Leave a mark so we know to safely unload below. */
2783 data->offset = NULL;
2784 return error;
2785 }
2786 ms.intval = *data->offset;
2787 MOD_XLOCK;
2788 module_setspecific(mod, &ms);
2789 MOD_XUNLOCK;
2790 if (data->chainevh)
2791 error = data->chainevh(mod, what, data->chainarg);
2792 return (error);
2793 case MOD_UNLOAD:
2794 /*
2795 * MOD_LOAD failed, so just return without calling the
2796 * chained handler since we didn't pass along the MOD_LOAD
2797 * event.
2798 */
2799 if (data->offset == NULL)
2800 return (0);
2801 if (data->chainevh) {
2802 error = data->chainevh(mod, what, data->chainarg);
2803 if (error)
2804 return (error);
2805 }
2806 error = syscall32_deregister(data->offset, &data->old_sysent);
2807 return (error);
2808 default:
2809 error = EOPNOTSUPP;
2810 if (data->chainevh)
2811 error = data->chainevh(mod, what, data->chainarg);
2812 return (error);
2813 }
2814 }
2815
2816 int
2817 syscall32_helper_register(struct syscall_helper_data *sd)
2818 {
2819 struct syscall_helper_data *sd1;
2820 int error;
2821
2822 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) {
2823 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent,
2824 &sd1->old_sysent);
2825 if (error != 0) {
2826 syscall32_helper_unregister(sd);
2827 return (error);
2828 }
2829 sd1->registered = 1;
2830 }
2831 return (0);
2832 }
2833
2834 int
2835 syscall32_helper_unregister(struct syscall_helper_data *sd)
2836 {
2837 struct syscall_helper_data *sd1;
2838
2839 for (sd1 = sd; sd1->registered != 0; sd1++) {
2840 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent);
2841 sd1->registered = 0;
2842 }
2843 return (0);
2844 }
2845
2846 register_t *
2847 freebsd32_copyout_strings(struct image_params *imgp)
2848 {
2849 int argc, envc, i;
2850 u_int32_t *vectp;
2851 char *stringp;
2852 uintptr_t destp;
2853 u_int32_t *stack_base;
2854 struct freebsd32_ps_strings *arginfo;
2855 char canary[sizeof(long) * 8];
2856 int32_t pagesizes32[MAXPAGESIZES];
2857 size_t execpath_len;
2858 int szsigcode;
2859
2860 /*
2861 * Calculate string base and vector table pointers.
2862 * Also deal with signal trampoline code for this exec type.
2863 */
2864 if (imgp->execpath != NULL && imgp->auxargs != NULL)
2865 execpath_len = strlen(imgp->execpath) + 1;
2866 else
2867 execpath_len = 0;
2868 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent->
2869 sv_psstrings;
2870 if (imgp->proc->p_sysent->sv_sigcode_base == 0)
2871 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode);
2872 else
2873 szsigcode = 0;
2874 destp = (uintptr_t)arginfo;
2875
2876 /*
2877 * install sigcode
2878 */
2879 if (szsigcode != 0) {
2880 destp -= szsigcode;
2881 destp = rounddown2(destp, sizeof(uint32_t));
2882 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp,
2883 szsigcode);
2884 }
2885
2886 /*
2887 * Copy the image path for the rtld.
2888 */
2889 if (execpath_len != 0) {
2890 destp -= execpath_len;
2891 imgp->execpathp = destp;
2892 copyout(imgp->execpath, (void *)destp, execpath_len);
2893 }
2894
2895 /*
2896 * Prepare the canary for SSP.
2897 */
2898 arc4rand(canary, sizeof(canary), 0);
2899 destp -= sizeof(canary);
2900 imgp->canary = destp;
2901 copyout(canary, (void *)destp, sizeof(canary));
2902 imgp->canarylen = sizeof(canary);
2903
2904 /*
2905 * Prepare the pagesizes array.
2906 */
2907 for (i = 0; i < MAXPAGESIZES; i++)
2908 pagesizes32[i] = (uint32_t)pagesizes[i];
2909 destp -= sizeof(pagesizes32);
2910 destp = rounddown2(destp, sizeof(uint32_t));
2911 imgp->pagesizes = destp;
2912 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32));
2913 imgp->pagesizeslen = sizeof(pagesizes32);
2914
2915 destp -= ARG_MAX - imgp->args->stringspace;
2916 destp = rounddown2(destp, sizeof(uint32_t));
2917
2918 /*
2919 * If we have a valid auxargs ptr, prepare some room
2920 * on the stack.
2921 */
2922 if (imgp->auxargs) {
2923 /*
2924 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for
2925 * lower compatibility.
2926 */
2927 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size
2928 : (AT_COUNT * 2);
2929 /*
2930 * The '+ 2' is for the null pointers at the end of each of
2931 * the arg and env vector sets,and imgp->auxarg_size is room
2932 * for argument of Runtime loader.
2933 */
2934 vectp = (u_int32_t *) (destp - (imgp->args->argc +
2935 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) *
2936 sizeof(u_int32_t));
2937 } else {
2938 /*
2939 * The '+ 2' is for the null pointers at the end of each of
2940 * the arg and env vector sets
2941 */
2942 vectp = (u_int32_t *)(destp - (imgp->args->argc +
2943 imgp->args->envc + 2) * sizeof(u_int32_t));
2944 }
2945
2946 /*
2947 * vectp also becomes our initial stack base
2948 */
2949 stack_base = vectp;
2950
2951 stringp = imgp->args->begin_argv;
2952 argc = imgp->args->argc;
2953 envc = imgp->args->envc;
2954 /*
2955 * Copy out strings - arguments and environment.
2956 */
2957 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace);
2958
2959 /*
2960 * Fill in "ps_strings" struct for ps, w, etc.
2961 */
2962 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp);
2963 suword32(&arginfo->ps_nargvstr, argc);
2964
2965 /*
2966 * Fill in argument portion of vector table.
2967 */
2968 for (; argc > 0; --argc) {
2969 suword32(vectp++, (u_int32_t)(intptr_t)destp);
2970 while (*stringp++ != 0)
2971 destp++;
2972 destp++;
2973 }
2974
2975 /* a null vector table pointer separates the argp's from the envp's */
2976 suword32(vectp++, 0);
2977
2978 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp);
2979 suword32(&arginfo->ps_nenvstr, envc);
2980
2981 /*
2982 * Fill in environment portion of vector table.
2983 */
2984 for (; envc > 0; --envc) {
2985 suword32(vectp++, (u_int32_t)(intptr_t)destp);
2986 while (*stringp++ != 0)
2987 destp++;
2988 destp++;
2989 }
2990
2991 /* end of vector table is a null pointer */
2992 suword32(vectp, 0);
2993
2994 return ((register_t *)stack_base);
2995 }
2996
2997 int
2998 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap)
2999 {
3000 struct kld_file_stat stat;
3001 struct kld32_file_stat stat32;
3002 int error, version;
3003
3004 if ((error = copyin(&uap->stat->version, &version, sizeof(version)))
3005 != 0)
3006 return (error);
3007 if (version != sizeof(struct kld32_file_stat_1) &&
3008 version != sizeof(struct kld32_file_stat))
3009 return (EINVAL);
3010
3011 error = kern_kldstat(td, uap->fileid, &stat);
3012 if (error != 0)
3013 return (error);
3014
3015 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name));
3016 CP(stat, stat32, refs);
3017 CP(stat, stat32, id);
3018 PTROUT_CP(stat, stat32, address);
3019 CP(stat, stat32, size);
3020 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname));
3021 return (copyout(&stat32, uap->stat, version));
3022 }
3023
3024 int
3025 freebsd32_posix_fallocate(struct thread *td,
3026 struct freebsd32_posix_fallocate_args *uap)
3027 {
3028
3029 td->td_retval[0] = kern_posix_fallocate(td, uap->fd,
3030 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len));
3031 return (0);
3032 }
3033
3034 int
3035 freebsd32_posix_fadvise(struct thread *td,
3036 struct freebsd32_posix_fadvise_args *uap)
3037 {
3038
3039 td->td_retval[0] = kern_posix_fadvise(td, uap->fd,
3040 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len),
3041 uap->advice);
3042 return (0);
3043 }
3044
3045 int
3046 convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig)
3047 {
3048
3049 CP(*sig32, *sig, sigev_notify);
3050 switch (sig->sigev_notify) {
3051 case SIGEV_NONE:
3052 break;
3053 case SIGEV_THREAD_ID:
3054 CP(*sig32, *sig, sigev_notify_thread_id);
3055 /* FALLTHROUGH */
3056 case SIGEV_SIGNAL:
3057 CP(*sig32, *sig, sigev_signo);
3058 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr);
3059 break;
3060 case SIGEV_KEVENT:
3061 CP(*sig32, *sig, sigev_notify_kqueue);
3062 CP(*sig32, *sig, sigev_notify_kevent_flags);
3063 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr);
3064 break;
3065 default:
3066 return (EINVAL);
3067 }
3068 return (0);
3069 }
3070
3071 int
3072 freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap)
3073 {
3074 void *data;
3075 union {
3076 struct procctl_reaper_status rs;
3077 struct procctl_reaper_pids rp;
3078 struct procctl_reaper_kill rk;
3079 } x;
3080 union {
3081 struct procctl_reaper_pids32 rp;
3082 } x32;
3083 int error, error1, flags;
3084
3085 switch (uap->com) {
3086 case PROC_SPROTECT:
3087 case PROC_TRACE_CTL:
3088 error = copyin(PTRIN(uap->data), &flags, sizeof(flags));
3089 if (error != 0)
3090 return (error);
3091 data = &flags;
3092 break;
3093 case PROC_REAP_ACQUIRE:
3094 case PROC_REAP_RELEASE:
3095 if (uap->data != NULL)
3096 return (EINVAL);
3097 data = NULL;
3098 break;
3099 case PROC_REAP_STATUS:
3100 data = &x.rs;
3101 break;
3102 case PROC_REAP_GETPIDS:
3103 error = copyin(uap->data, &x32.rp, sizeof(x32.rp));
3104 if (error != 0)
3105 return (error);
3106 CP(x32.rp, x.rp, rp_count);
3107 PTRIN_CP(x32.rp, x.rp, rp_pids);
3108 data = &x.rp;
3109 break;
3110 case PROC_REAP_KILL:
3111 error = copyin(uap->data, &x.rk, sizeof(x.rk));
3112 if (error != 0)
3113 return (error);
3114 data = &x.rk;
3115 break;
3116 case PROC_TRACE_STATUS:
3117 data = &flags;
3118 break;
3119 default:
3120 return (EINVAL);
3121 }
3122 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id),
3123 uap->com, data);
3124 switch (uap->com) {
3125 case PROC_REAP_STATUS:
3126 if (error == 0)
3127 error = copyout(&x.rs, uap->data, sizeof(x.rs));
3128 break;
3129 case PROC_REAP_KILL:
3130 error1 = copyout(&x.rk, uap->data, sizeof(x.rk));
3131 if (error == 0)
3132 error = error1;
3133 break;
3134 case PROC_TRACE_STATUS:
3135 if (error == 0)
3136 error = copyout(&flags, uap->data, sizeof(flags));
3137 break;
3138 }
3139 return (error);
3140 }
3141
3142 int
3143 freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap)
3144 {
3145 long tmp;
3146
3147 switch (uap->cmd) {
3148 /*
3149 * Do unsigned conversion for arg when operation
3150 * interprets it as flags or pointer.
3151 */
3152 case F_SETLK_REMOTE:
3153 case F_SETLKW:
3154 case F_SETLK:
3155 case F_GETLK:
3156 case F_SETFD:
3157 case F_SETFL:
3158 case F_OGETLK:
3159 case F_OSETLK:
3160 case F_OSETLKW:
3161 tmp = (unsigned int)(uap->arg);
3162 break;
3163 default:
3164 tmp = uap->arg;
3165 break;
3166 }
3167 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp));
3168 }
3169
3170 int
3171 freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap)
3172 {
3173 struct timespec32 ts32;
3174 struct timespec ts, *tsp;
3175 sigset_t set, *ssp;
3176 int error;
3177
3178 if (uap->ts != NULL) {
3179 error = copyin(uap->ts, &ts32, sizeof(ts32));
3180 if (error != 0)
3181 return (error);
3182 CP(ts32, ts, tv_sec);
3183 CP(ts32, ts, tv_nsec);
3184 tsp = &ts;
3185 } else
3186 tsp = NULL;
3187 if (uap->set != NULL) {
3188 error = copyin(uap->set, &set, sizeof(set));
3189 if (error != 0)
3190 return (error);
3191 ssp = &set;
3192 } else
3193 ssp = NULL;
3194
3195 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp));
3196 }
Cache object: 851a0d52193b12d438f82fbf2773944b
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