1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2002 Doug Rabson
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31
32 #include "opt_inet.h"
33 #include "opt_inet6.h"
34 #include "opt_ktrace.h"
35
36 #define __ELF_WORD_SIZE 32
37
38 #ifdef COMPAT_FREEBSD11
39 #define _WANT_FREEBSD11_KEVENT
40 #endif
41
42 #include <sys/param.h>
43 #include <sys/bus.h>
44 #include <sys/capsicum.h>
45 #include <sys/clock.h>
46 #include <sys/exec.h>
47 #include <sys/fcntl.h>
48 #include <sys/filedesc.h>
49 #include <sys/imgact.h>
50 #include <sys/jail.h>
51 #include <sys/kernel.h>
52 #include <sys/limits.h>
53 #include <sys/linker.h>
54 #include <sys/lock.h>
55 #include <sys/malloc.h>
56 #include <sys/file.h> /* Must come after sys/malloc.h */
57 #include <sys/imgact.h>
58 #include <sys/mbuf.h>
59 #include <sys/mman.h>
60 #include <sys/module.h>
61 #include <sys/mount.h>
62 #include <sys/mutex.h>
63 #include <sys/namei.h>
64 #include <sys/proc.h>
65 #include <sys/procctl.h>
66 #include <sys/ptrace.h>
67 #include <sys/reboot.h>
68 #include <sys/resource.h>
69 #include <sys/resourcevar.h>
70 #include <sys/selinfo.h>
71 #include <sys/eventvar.h> /* Must come after sys/selinfo.h */
72 #include <sys/pipe.h> /* Must come after sys/selinfo.h */
73 #include <sys/signal.h>
74 #include <sys/signalvar.h>
75 #include <sys/socket.h>
76 #include <sys/socketvar.h>
77 #include <sys/stat.h>
78 #include <sys/syscall.h>
79 #include <sys/syscallsubr.h>
80 #include <sys/sysctl.h>
81 #include <sys/sysent.h>
82 #include <sys/sysproto.h>
83 #include <sys/systm.h>
84 #include <sys/thr.h>
85 #include <sys/timex.h>
86 #include <sys/unistd.h>
87 #include <sys/ucontext.h>
88 #include <sys/umtx.h>
89 #include <sys/vnode.h>
90 #include <sys/wait.h>
91 #include <sys/ipc.h>
92 #include <sys/msg.h>
93 #include <sys/sem.h>
94 #include <sys/shm.h>
95 #ifdef KTRACE
96 #include <sys/ktrace.h>
97 #endif
98
99 #ifdef INET
100 #include <netinet/in.h>
101 #endif
102
103 #include <vm/vm.h>
104 #include <vm/vm_param.h>
105 #include <vm/pmap.h>
106 #include <vm/vm_map.h>
107 #include <vm/vm_object.h>
108 #include <vm/vm_extern.h>
109
110 #include <machine/cpu.h>
111 #include <machine/elf.h>
112 #ifdef __amd64__
113 #include <machine/md_var.h>
114 #endif
115
116 #include <security/audit/audit.h>
117
118 #include <compat/freebsd32/freebsd32_util.h>
119 #include <compat/freebsd32/freebsd32.h>
120 #include <compat/freebsd32/freebsd32_ipc.h>
121 #include <compat/freebsd32/freebsd32_misc.h>
122 #include <compat/freebsd32/freebsd32_signal.h>
123 #include <compat/freebsd32/freebsd32_proto.h>
124
125 FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD");
126
127 struct ptrace_io_desc32 {
128 int piod_op;
129 uint32_t piod_offs;
130 uint32_t piod_addr;
131 uint32_t piod_len;
132 };
133
134 struct ptrace_sc_ret32 {
135 uint32_t sr_retval[2];
136 int sr_error;
137 };
138
139 struct ptrace_vm_entry32 {
140 int pve_entry;
141 int pve_timestamp;
142 uint32_t pve_start;
143 uint32_t pve_end;
144 uint32_t pve_offset;
145 u_int pve_prot;
146 u_int pve_pathlen;
147 int32_t pve_fileid;
148 u_int pve_fsid;
149 uint32_t pve_path;
150 };
151
152 #ifdef __amd64__
153 CTASSERT(sizeof(struct timeval32) == 8);
154 CTASSERT(sizeof(struct timespec32) == 8);
155 CTASSERT(sizeof(struct itimerval32) == 16);
156 CTASSERT(sizeof(struct bintime32) == 12);
157 #endif
158 CTASSERT(sizeof(struct statfs32) == 256);
159 #ifdef __amd64__
160 CTASSERT(sizeof(struct rusage32) == 72);
161 #endif
162 CTASSERT(sizeof(struct sigaltstack32) == 12);
163 #ifdef __amd64__
164 CTASSERT(sizeof(struct kevent32) == 56);
165 #else
166 CTASSERT(sizeof(struct kevent32) == 64);
167 #endif
168 CTASSERT(sizeof(struct iovec32) == 8);
169 CTASSERT(sizeof(struct msghdr32) == 28);
170 #ifdef __amd64__
171 CTASSERT(sizeof(struct stat32) == 208);
172 CTASSERT(sizeof(struct freebsd11_stat32) == 96);
173 #endif
174 CTASSERT(sizeof(struct sigaction32) == 24);
175
176 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count);
177 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count);
178 static int freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id,
179 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp);
180
181 void
freebsd32_rusage_out(const struct rusage * s,struct rusage32 * s32)182 freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32)
183 {
184
185 TV_CP(*s, *s32, ru_utime);
186 TV_CP(*s, *s32, ru_stime);
187 CP(*s, *s32, ru_maxrss);
188 CP(*s, *s32, ru_ixrss);
189 CP(*s, *s32, ru_idrss);
190 CP(*s, *s32, ru_isrss);
191 CP(*s, *s32, ru_minflt);
192 CP(*s, *s32, ru_majflt);
193 CP(*s, *s32, ru_nswap);
194 CP(*s, *s32, ru_inblock);
195 CP(*s, *s32, ru_oublock);
196 CP(*s, *s32, ru_msgsnd);
197 CP(*s, *s32, ru_msgrcv);
198 CP(*s, *s32, ru_nsignals);
199 CP(*s, *s32, ru_nvcsw);
200 CP(*s, *s32, ru_nivcsw);
201 }
202
203 int
freebsd32_wait4(struct thread * td,struct freebsd32_wait4_args * uap)204 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap)
205 {
206 int error, status;
207 struct rusage32 ru32;
208 struct rusage ru, *rup;
209
210 if (uap->rusage != NULL)
211 rup = &ru;
212 else
213 rup = NULL;
214 error = kern_wait(td, uap->pid, &status, uap->options, rup);
215 if (error)
216 return (error);
217 if (uap->status != NULL)
218 error = copyout(&status, uap->status, sizeof(status));
219 if (uap->rusage != NULL && error == 0) {
220 freebsd32_rusage_out(&ru, &ru32);
221 error = copyout(&ru32, uap->rusage, sizeof(ru32));
222 }
223 return (error);
224 }
225
226 int
freebsd32_wait6(struct thread * td,struct freebsd32_wait6_args * uap)227 freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap)
228 {
229 struct wrusage32 wru32;
230 struct __wrusage wru, *wrup;
231 struct siginfo32 si32;
232 struct __siginfo si, *sip;
233 int error, status;
234
235 if (uap->wrusage != NULL)
236 wrup = &wru;
237 else
238 wrup = NULL;
239 if (uap->info != NULL) {
240 sip = &si;
241 bzero(sip, sizeof(*sip));
242 } else
243 sip = NULL;
244 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id),
245 &status, uap->options, wrup, sip);
246 if (error != 0)
247 return (error);
248 if (uap->status != NULL)
249 error = copyout(&status, uap->status, sizeof(status));
250 if (uap->wrusage != NULL && error == 0) {
251 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self);
252 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children);
253 error = copyout(&wru32, uap->wrusage, sizeof(wru32));
254 }
255 if (uap->info != NULL && error == 0) {
256 siginfo_to_siginfo32 (&si, &si32);
257 error = copyout(&si32, uap->info, sizeof(si32));
258 }
259 return (error);
260 }
261
262 #ifdef COMPAT_FREEBSD4
263 static void
copy_statfs(struct statfs * in,struct statfs32 * out)264 copy_statfs(struct statfs *in, struct statfs32 *out)
265 {
266
267 statfs_scale_blocks(in, INT32_MAX);
268 bzero(out, sizeof(*out));
269 CP(*in, *out, f_bsize);
270 out->f_iosize = MIN(in->f_iosize, INT32_MAX);
271 CP(*in, *out, f_blocks);
272 CP(*in, *out, f_bfree);
273 CP(*in, *out, f_bavail);
274 out->f_files = MIN(in->f_files, INT32_MAX);
275 out->f_ffree = MIN(in->f_ffree, INT32_MAX);
276 CP(*in, *out, f_fsid);
277 CP(*in, *out, f_owner);
278 CP(*in, *out, f_type);
279 CP(*in, *out, f_flags);
280 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX);
281 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX);
282 strlcpy(out->f_fstypename,
283 in->f_fstypename, MFSNAMELEN);
284 strlcpy(out->f_mntonname,
285 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN));
286 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX);
287 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX);
288 strlcpy(out->f_mntfromname,
289 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN));
290 }
291 #endif
292
293 #ifdef COMPAT_FREEBSD4
294 int
freebsd4_freebsd32_getfsstat(struct thread * td,struct freebsd4_freebsd32_getfsstat_args * uap)295 freebsd4_freebsd32_getfsstat(struct thread *td,
296 struct freebsd4_freebsd32_getfsstat_args *uap)
297 {
298 struct statfs *buf, *sp;
299 struct statfs32 stat32;
300 size_t count, size, copycount;
301 int error;
302
303 count = uap->bufsize / sizeof(struct statfs32);
304 size = count * sizeof(struct statfs);
305 error = kern_getfsstat(td, &buf, size, &count, UIO_SYSSPACE, uap->mode);
306 if (size > 0) {
307 sp = buf;
308 copycount = count;
309 while (copycount > 0 && error == 0) {
310 copy_statfs(sp, &stat32);
311 error = copyout(&stat32, uap->buf, sizeof(stat32));
312 sp++;
313 uap->buf++;
314 copycount--;
315 }
316 free(buf, M_STATFS);
317 }
318 if (error == 0)
319 td->td_retval[0] = count;
320 return (error);
321 }
322 #endif
323
324 #ifdef COMPAT_FREEBSD10
325 int
freebsd10_freebsd32_pipe(struct thread * td,struct freebsd10_freebsd32_pipe_args * uap)326 freebsd10_freebsd32_pipe(struct thread *td,
327 struct freebsd10_freebsd32_pipe_args *uap) {
328 return (freebsd10_pipe(td, (struct freebsd10_pipe_args*)uap));
329 }
330 #endif
331
332 int
freebsd32_sigaltstack(struct thread * td,struct freebsd32_sigaltstack_args * uap)333 freebsd32_sigaltstack(struct thread *td,
334 struct freebsd32_sigaltstack_args *uap)
335 {
336 struct sigaltstack32 s32;
337 struct sigaltstack ss, oss, *ssp;
338 int error;
339
340 if (uap->ss != NULL) {
341 error = copyin(uap->ss, &s32, sizeof(s32));
342 if (error)
343 return (error);
344 PTRIN_CP(s32, ss, ss_sp);
345 CP(s32, ss, ss_size);
346 CP(s32, ss, ss_flags);
347 ssp = &ss;
348 } else
349 ssp = NULL;
350 error = kern_sigaltstack(td, ssp, &oss);
351 if (error == 0 && uap->oss != NULL) {
352 PTROUT_CP(oss, s32, ss_sp);
353 CP(oss, s32, ss_size);
354 CP(oss, s32, ss_flags);
355 error = copyout(&s32, uap->oss, sizeof(s32));
356 }
357 return (error);
358 }
359
360 /*
361 * Custom version of exec_copyin_args() so that we can translate
362 * the pointers.
363 */
364 int
freebsd32_exec_copyin_args(struct image_args * args,const char * fname,enum uio_seg segflg,u_int32_t * argv,u_int32_t * envv)365 freebsd32_exec_copyin_args(struct image_args *args, const char *fname,
366 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv)
367 {
368 char *argp, *envp;
369 u_int32_t *p32, arg;
370 int error;
371
372 bzero(args, sizeof(*args));
373 if (argv == NULL)
374 return (EFAULT);
375
376 /*
377 * Allocate demand-paged memory for the file name, argument, and
378 * environment strings.
379 */
380 error = exec_alloc_args(args);
381 if (error != 0)
382 return (error);
383
384 /*
385 * Copy the file name.
386 */
387 error = exec_args_add_fname(args, fname, segflg);
388 if (error != 0)
389 goto err_exit;
390
391 /*
392 * extract arguments first
393 */
394 p32 = argv;
395 for (;;) {
396 error = copyin(p32++, &arg, sizeof(arg));
397 if (error)
398 goto err_exit;
399 if (arg == 0)
400 break;
401 argp = PTRIN(arg);
402 error = exec_args_add_arg(args, argp, UIO_USERSPACE);
403 if (error != 0)
404 goto err_exit;
405 }
406
407 /*
408 * extract environment strings
409 */
410 if (envv) {
411 p32 = envv;
412 for (;;) {
413 error = copyin(p32++, &arg, sizeof(arg));
414 if (error)
415 goto err_exit;
416 if (arg == 0)
417 break;
418 envp = PTRIN(arg);
419 error = exec_args_add_env(args, envp, UIO_USERSPACE);
420 if (error != 0)
421 goto err_exit;
422 }
423 }
424
425 return (0);
426
427 err_exit:
428 exec_free_args(args);
429 return (error);
430 }
431
432 int
freebsd32_execve(struct thread * td,struct freebsd32_execve_args * uap)433 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap)
434 {
435 struct image_args eargs;
436 struct vmspace *oldvmspace;
437 int error;
438
439 error = pre_execve(td, &oldvmspace);
440 if (error != 0)
441 return (error);
442 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE,
443 uap->argv, uap->envv);
444 if (error == 0)
445 error = kern_execve(td, &eargs, NULL, oldvmspace);
446 post_execve(td, error, oldvmspace);
447 AUDIT_SYSCALL_EXIT(error == EJUSTRETURN ? 0 : error, td);
448 return (error);
449 }
450
451 int
freebsd32_fexecve(struct thread * td,struct freebsd32_fexecve_args * uap)452 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap)
453 {
454 struct image_args eargs;
455 struct vmspace *oldvmspace;
456 int error;
457
458 error = pre_execve(td, &oldvmspace);
459 if (error != 0)
460 return (error);
461 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE,
462 uap->argv, uap->envv);
463 if (error == 0) {
464 eargs.fd = uap->fd;
465 error = kern_execve(td, &eargs, NULL, oldvmspace);
466 }
467 post_execve(td, error, oldvmspace);
468 AUDIT_SYSCALL_EXIT(error == EJUSTRETURN ? 0 : error, td);
469 return (error);
470 }
471
472 int
freebsd32_mknodat(struct thread * td,struct freebsd32_mknodat_args * uap)473 freebsd32_mknodat(struct thread *td, struct freebsd32_mknodat_args *uap)
474 {
475
476 return (kern_mknodat(td, uap->fd, uap->path, UIO_USERSPACE,
477 uap->mode, PAIR32TO64(dev_t, uap->dev)));
478 }
479
480 int
freebsd32_mprotect(struct thread * td,struct freebsd32_mprotect_args * uap)481 freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap)
482 {
483 int prot;
484
485 prot = uap->prot;
486 #if defined(__amd64__)
487 if (i386_read_exec && (prot & PROT_READ) != 0)
488 prot |= PROT_EXEC;
489 #endif
490 return (kern_mprotect(td, (uintptr_t)PTRIN(uap->addr), uap->len,
491 prot));
492 }
493
494 int
freebsd32_mmap(struct thread * td,struct freebsd32_mmap_args * uap)495 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap)
496 {
497 int prot;
498
499 prot = uap->prot;
500 #if defined(__amd64__)
501 if (i386_read_exec && (prot & PROT_READ))
502 prot |= PROT_EXEC;
503 #endif
504
505 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot,
506 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos)));
507 }
508
509 #ifdef COMPAT_FREEBSD6
510 int
freebsd6_freebsd32_mmap(struct thread * td,struct freebsd6_freebsd32_mmap_args * uap)511 freebsd6_freebsd32_mmap(struct thread *td,
512 struct freebsd6_freebsd32_mmap_args *uap)
513 {
514 int prot;
515
516 prot = uap->prot;
517 #if defined(__amd64__)
518 if (i386_read_exec && (prot & PROT_READ))
519 prot |= PROT_EXEC;
520 #endif
521
522 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot,
523 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos)));
524 }
525 #endif
526
527 int
freebsd32_setitimer(struct thread * td,struct freebsd32_setitimer_args * uap)528 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap)
529 {
530 struct itimerval itv, oitv, *itvp;
531 struct itimerval32 i32;
532 int error;
533
534 if (uap->itv != NULL) {
535 error = copyin(uap->itv, &i32, sizeof(i32));
536 if (error)
537 return (error);
538 TV_CP(i32, itv, it_interval);
539 TV_CP(i32, itv, it_value);
540 itvp = &itv;
541 } else
542 itvp = NULL;
543 error = kern_setitimer(td, uap->which, itvp, &oitv);
544 if (error || uap->oitv == NULL)
545 return (error);
546 TV_CP(oitv, i32, it_interval);
547 TV_CP(oitv, i32, it_value);
548 return (copyout(&i32, uap->oitv, sizeof(i32)));
549 }
550
551 int
freebsd32_getitimer(struct thread * td,struct freebsd32_getitimer_args * uap)552 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap)
553 {
554 struct itimerval itv;
555 struct itimerval32 i32;
556 int error;
557
558 error = kern_getitimer(td, uap->which, &itv);
559 if (error || uap->itv == NULL)
560 return (error);
561 TV_CP(itv, i32, it_interval);
562 TV_CP(itv, i32, it_value);
563 return (copyout(&i32, uap->itv, sizeof(i32)));
564 }
565
566 int
freebsd32_select(struct thread * td,struct freebsd32_select_args * uap)567 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap)
568 {
569 struct timeval32 tv32;
570 struct timeval tv, *tvp;
571 int error;
572
573 if (uap->tv != NULL) {
574 error = copyin(uap->tv, &tv32, sizeof(tv32));
575 if (error)
576 return (error);
577 CP(tv32, tv, tv_sec);
578 CP(tv32, tv, tv_usec);
579 tvp = &tv;
580 } else
581 tvp = NULL;
582 /*
583 * XXX Do pointers need PTRIN()?
584 */
585 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp,
586 sizeof(int32_t) * 8));
587 }
588
589 int
freebsd32_pselect(struct thread * td,struct freebsd32_pselect_args * uap)590 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap)
591 {
592 struct timespec32 ts32;
593 struct timespec ts;
594 struct timeval tv, *tvp;
595 sigset_t set, *uset;
596 int error;
597
598 if (uap->ts != NULL) {
599 error = copyin(uap->ts, &ts32, sizeof(ts32));
600 if (error != 0)
601 return (error);
602 CP(ts32, ts, tv_sec);
603 CP(ts32, ts, tv_nsec);
604 TIMESPEC_TO_TIMEVAL(&tv, &ts);
605 tvp = &tv;
606 } else
607 tvp = NULL;
608 if (uap->sm != NULL) {
609 error = copyin(uap->sm, &set, sizeof(set));
610 if (error != 0)
611 return (error);
612 uset = &set;
613 } else
614 uset = NULL;
615 /*
616 * XXX Do pointers need PTRIN()?
617 */
618 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp,
619 uset, sizeof(int32_t) * 8);
620 return (error);
621 }
622
623 /*
624 * Copy 'count' items into the destination list pointed to by uap->eventlist.
625 */
626 static int
freebsd32_kevent_copyout(void * arg,struct kevent * kevp,int count)627 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count)
628 {
629 struct freebsd32_kevent_args *uap;
630 struct kevent32 ks32[KQ_NEVENTS];
631 uint64_t e;
632 int i, j, error;
633
634 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
635 uap = (struct freebsd32_kevent_args *)arg;
636
637 for (i = 0; i < count; i++) {
638 CP(kevp[i], ks32[i], ident);
639 CP(kevp[i], ks32[i], filter);
640 CP(kevp[i], ks32[i], flags);
641 CP(kevp[i], ks32[i], fflags);
642 #if BYTE_ORDER == LITTLE_ENDIAN
643 ks32[i].data1 = kevp[i].data;
644 ks32[i].data2 = kevp[i].data >> 32;
645 #else
646 ks32[i].data1 = kevp[i].data >> 32;
647 ks32[i].data2 = kevp[i].data;
648 #endif
649 PTROUT_CP(kevp[i], ks32[i], udata);
650 for (j = 0; j < nitems(kevp->ext); j++) {
651 e = kevp[i].ext[j];
652 #if BYTE_ORDER == LITTLE_ENDIAN
653 ks32[i].ext64[2 * j] = e;
654 ks32[i].ext64[2 * j + 1] = e >> 32;
655 #else
656 ks32[i].ext64[2 * j] = e >> 32;
657 ks32[i].ext64[2 * j + 1] = e;
658 #endif
659 }
660 }
661 error = copyout(ks32, uap->eventlist, count * sizeof *ks32);
662 if (error == 0)
663 uap->eventlist += count;
664 return (error);
665 }
666
667 /*
668 * Copy 'count' items from the list pointed to by uap->changelist.
669 */
670 static int
freebsd32_kevent_copyin(void * arg,struct kevent * kevp,int count)671 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count)
672 {
673 struct freebsd32_kevent_args *uap;
674 struct kevent32 ks32[KQ_NEVENTS];
675 uint64_t e;
676 int i, j, error;
677
678 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
679 uap = (struct freebsd32_kevent_args *)arg;
680
681 error = copyin(uap->changelist, ks32, count * sizeof *ks32);
682 if (error)
683 goto done;
684 uap->changelist += count;
685
686 for (i = 0; i < count; i++) {
687 CP(ks32[i], kevp[i], ident);
688 CP(ks32[i], kevp[i], filter);
689 CP(ks32[i], kevp[i], flags);
690 CP(ks32[i], kevp[i], fflags);
691 kevp[i].data = PAIR32TO64(uint64_t, ks32[i].data);
692 PTRIN_CP(ks32[i], kevp[i], udata);
693 for (j = 0; j < nitems(kevp->ext); j++) {
694 #if BYTE_ORDER == LITTLE_ENDIAN
695 e = ks32[i].ext64[2 * j + 1];
696 e <<= 32;
697 e += ks32[i].ext64[2 * j];
698 #else
699 e = ks32[i].ext64[2 * j];
700 e <<= 32;
701 e += ks32[i].ext64[2 * j + 1];
702 #endif
703 kevp[i].ext[j] = e;
704 }
705 }
706 done:
707 return (error);
708 }
709
710 int
freebsd32_kevent(struct thread * td,struct freebsd32_kevent_args * uap)711 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap)
712 {
713 struct timespec32 ts32;
714 struct timespec ts, *tsp;
715 struct kevent_copyops k_ops = {
716 .arg = uap,
717 .k_copyout = freebsd32_kevent_copyout,
718 .k_copyin = freebsd32_kevent_copyin,
719 };
720 #ifdef KTRACE
721 struct kevent32 *eventlist = uap->eventlist;
722 #endif
723 int error;
724
725 if (uap->timeout) {
726 error = copyin(uap->timeout, &ts32, sizeof(ts32));
727 if (error)
728 return (error);
729 CP(ts32, ts, tv_sec);
730 CP(ts32, ts, tv_nsec);
731 tsp = &ts;
732 } else
733 tsp = NULL;
734 #ifdef KTRACE
735 if (KTRPOINT(td, KTR_STRUCT_ARRAY))
736 ktrstructarray("kevent32", UIO_USERSPACE, uap->changelist,
737 uap->nchanges, sizeof(struct kevent32));
738 #endif
739 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents,
740 &k_ops, tsp);
741 #ifdef KTRACE
742 if (error == 0 && KTRPOINT(td, KTR_STRUCT_ARRAY))
743 ktrstructarray("kevent32", UIO_USERSPACE, eventlist,
744 td->td_retval[0], sizeof(struct kevent32));
745 #endif
746 return (error);
747 }
748
749 #ifdef COMPAT_FREEBSD11
750 static int
freebsd32_kevent11_copyout(void * arg,struct kevent * kevp,int count)751 freebsd32_kevent11_copyout(void *arg, struct kevent *kevp, int count)
752 {
753 struct freebsd11_freebsd32_kevent_args *uap;
754 struct kevent32_freebsd11 ks32[KQ_NEVENTS];
755 int i, error;
756
757 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
758 uap = (struct freebsd11_freebsd32_kevent_args *)arg;
759
760 for (i = 0; i < count; i++) {
761 CP(kevp[i], ks32[i], ident);
762 CP(kevp[i], ks32[i], filter);
763 CP(kevp[i], ks32[i], flags);
764 CP(kevp[i], ks32[i], fflags);
765 CP(kevp[i], ks32[i], data);
766 PTROUT_CP(kevp[i], ks32[i], udata);
767 }
768 error = copyout(ks32, uap->eventlist, count * sizeof *ks32);
769 if (error == 0)
770 uap->eventlist += count;
771 return (error);
772 }
773
774 /*
775 * Copy 'count' items from the list pointed to by uap->changelist.
776 */
777 static int
freebsd32_kevent11_copyin(void * arg,struct kevent * kevp,int count)778 freebsd32_kevent11_copyin(void *arg, struct kevent *kevp, int count)
779 {
780 struct freebsd11_freebsd32_kevent_args *uap;
781 struct kevent32_freebsd11 ks32[KQ_NEVENTS];
782 int i, j, error;
783
784 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
785 uap = (struct freebsd11_freebsd32_kevent_args *)arg;
786
787 error = copyin(uap->changelist, ks32, count * sizeof *ks32);
788 if (error)
789 goto done;
790 uap->changelist += count;
791
792 for (i = 0; i < count; i++) {
793 CP(ks32[i], kevp[i], ident);
794 CP(ks32[i], kevp[i], filter);
795 CP(ks32[i], kevp[i], flags);
796 CP(ks32[i], kevp[i], fflags);
797 CP(ks32[i], kevp[i], data);
798 PTRIN_CP(ks32[i], kevp[i], udata);
799 for (j = 0; j < nitems(kevp->ext); j++)
800 kevp[i].ext[j] = 0;
801 }
802 done:
803 return (error);
804 }
805
806 int
freebsd11_freebsd32_kevent(struct thread * td,struct freebsd11_freebsd32_kevent_args * uap)807 freebsd11_freebsd32_kevent(struct thread *td,
808 struct freebsd11_freebsd32_kevent_args *uap)
809 {
810 struct timespec32 ts32;
811 struct timespec ts, *tsp;
812 struct kevent_copyops k_ops = {
813 .arg = uap,
814 .k_copyout = freebsd32_kevent11_copyout,
815 .k_copyin = freebsd32_kevent11_copyin,
816 };
817 #ifdef KTRACE
818 struct kevent32_freebsd11 *eventlist = uap->eventlist;
819 #endif
820 int error;
821
822 if (uap->timeout) {
823 error = copyin(uap->timeout, &ts32, sizeof(ts32));
824 if (error)
825 return (error);
826 CP(ts32, ts, tv_sec);
827 CP(ts32, ts, tv_nsec);
828 tsp = &ts;
829 } else
830 tsp = NULL;
831 #ifdef KTRACE
832 if (KTRPOINT(td, KTR_STRUCT_ARRAY))
833 ktrstructarray("kevent32_freebsd11", UIO_USERSPACE,
834 uap->changelist, uap->nchanges,
835 sizeof(struct kevent32_freebsd11));
836 #endif
837 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents,
838 &k_ops, tsp);
839 #ifdef KTRACE
840 if (error == 0 && KTRPOINT(td, KTR_STRUCT_ARRAY))
841 ktrstructarray("kevent32_freebsd11", UIO_USERSPACE,
842 eventlist, td->td_retval[0],
843 sizeof(struct kevent32_freebsd11));
844 #endif
845 return (error);
846 }
847 #endif
848
849 int
freebsd32_gettimeofday(struct thread * td,struct freebsd32_gettimeofday_args * uap)850 freebsd32_gettimeofday(struct thread *td,
851 struct freebsd32_gettimeofday_args *uap)
852 {
853 struct timeval atv;
854 struct timeval32 atv32;
855 struct timezone rtz;
856 int error = 0;
857
858 if (uap->tp) {
859 microtime(&atv);
860 CP(atv, atv32, tv_sec);
861 CP(atv, atv32, tv_usec);
862 error = copyout(&atv32, uap->tp, sizeof (atv32));
863 }
864 if (error == 0 && uap->tzp != NULL) {
865 rtz.tz_minuteswest = 0;
866 rtz.tz_dsttime = 0;
867 error = copyout(&rtz, uap->tzp, sizeof (rtz));
868 }
869 return (error);
870 }
871
872 int
freebsd32_getrusage(struct thread * td,struct freebsd32_getrusage_args * uap)873 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap)
874 {
875 struct rusage32 s32;
876 struct rusage s;
877 int error;
878
879 error = kern_getrusage(td, uap->who, &s);
880 if (error == 0) {
881 freebsd32_rusage_out(&s, &s32);
882 error = copyout(&s32, uap->rusage, sizeof(s32));
883 }
884 return (error);
885 }
886
887 static void
ptrace_lwpinfo_to32(const struct ptrace_lwpinfo * pl,struct ptrace_lwpinfo32 * pl32)888 ptrace_lwpinfo_to32(const struct ptrace_lwpinfo *pl,
889 struct ptrace_lwpinfo32 *pl32)
890 {
891
892 bzero(pl32, sizeof(*pl32));
893 pl32->pl_lwpid = pl->pl_lwpid;
894 pl32->pl_event = pl->pl_event;
895 pl32->pl_flags = pl->pl_flags;
896 pl32->pl_sigmask = pl->pl_sigmask;
897 pl32->pl_siglist = pl->pl_siglist;
898 siginfo_to_siginfo32(&pl->pl_siginfo, &pl32->pl_siginfo);
899 strcpy(pl32->pl_tdname, pl->pl_tdname);
900 pl32->pl_child_pid = pl->pl_child_pid;
901 pl32->pl_syscall_code = pl->pl_syscall_code;
902 pl32->pl_syscall_narg = pl->pl_syscall_narg;
903 }
904
905 static void
ptrace_sc_ret_to32(const struct ptrace_sc_ret * psr,struct ptrace_sc_ret32 * psr32)906 ptrace_sc_ret_to32(const struct ptrace_sc_ret *psr,
907 struct ptrace_sc_ret32 *psr32)
908 {
909
910 bzero(psr32, sizeof(*psr32));
911 psr32->sr_retval[0] = psr->sr_retval[0];
912 psr32->sr_retval[1] = psr->sr_retval[1];
913 psr32->sr_error = psr->sr_error;
914 }
915
916 int
freebsd32_ptrace(struct thread * td,struct freebsd32_ptrace_args * uap)917 freebsd32_ptrace(struct thread *td, struct freebsd32_ptrace_args *uap)
918 {
919 union {
920 struct ptrace_io_desc piod;
921 struct ptrace_lwpinfo pl;
922 struct ptrace_vm_entry pve;
923 struct ptrace_coredump pc;
924 struct dbreg32 dbreg;
925 struct fpreg32 fpreg;
926 struct reg32 reg;
927 register_t args[nitems(td->td_sa.args)];
928 struct ptrace_sc_ret psr;
929 int ptevents;
930 } r;
931 union {
932 struct ptrace_io_desc32 piod;
933 struct ptrace_lwpinfo32 pl;
934 struct ptrace_vm_entry32 pve;
935 struct ptrace_coredump32 pc;
936 uint32_t args[nitems(td->td_sa.args)];
937 struct ptrace_sc_ret32 psr;
938 } r32;
939 void *addr;
940 int data, error, i;
941
942 if (!allow_ptrace)
943 return (ENOSYS);
944 error = 0;
945
946 AUDIT_ARG_PID(uap->pid);
947 AUDIT_ARG_CMD(uap->req);
948 AUDIT_ARG_VALUE(uap->data);
949 addr = &r;
950 data = uap->data;
951 switch (uap->req) {
952 case PT_GET_EVENT_MASK:
953 case PT_GET_SC_ARGS:
954 case PT_GET_SC_RET:
955 break;
956 case PT_LWPINFO:
957 if (uap->data > sizeof(r32.pl))
958 return (EINVAL);
959
960 /*
961 * Pass size of native structure in 'data'. Truncate
962 * if necessary to avoid siginfo.
963 */
964 data = sizeof(r.pl);
965 if (uap->data < offsetof(struct ptrace_lwpinfo32, pl_siginfo) +
966 sizeof(struct siginfo32))
967 data = offsetof(struct ptrace_lwpinfo, pl_siginfo);
968 break;
969 case PT_GETREGS:
970 bzero(&r.reg, sizeof(r.reg));
971 break;
972 case PT_GETFPREGS:
973 bzero(&r.fpreg, sizeof(r.fpreg));
974 break;
975 case PT_GETDBREGS:
976 bzero(&r.dbreg, sizeof(r.dbreg));
977 break;
978 case PT_SETREGS:
979 error = copyin(uap->addr, &r.reg, sizeof(r.reg));
980 break;
981 case PT_SETFPREGS:
982 error = copyin(uap->addr, &r.fpreg, sizeof(r.fpreg));
983 break;
984 case PT_SETDBREGS:
985 error = copyin(uap->addr, &r.dbreg, sizeof(r.dbreg));
986 break;
987 case PT_SET_EVENT_MASK:
988 if (uap->data != sizeof(r.ptevents))
989 error = EINVAL;
990 else
991 error = copyin(uap->addr, &r.ptevents, uap->data);
992 break;
993 case PT_IO:
994 error = copyin(uap->addr, &r32.piod, sizeof(r32.piod));
995 if (error)
996 break;
997 CP(r32.piod, r.piod, piod_op);
998 PTRIN_CP(r32.piod, r.piod, piod_offs);
999 PTRIN_CP(r32.piod, r.piod, piod_addr);
1000 CP(r32.piod, r.piod, piod_len);
1001 break;
1002 case PT_VM_ENTRY:
1003 error = copyin(uap->addr, &r32.pve, sizeof(r32.pve));
1004 if (error)
1005 break;
1006
1007 CP(r32.pve, r.pve, pve_entry);
1008 CP(r32.pve, r.pve, pve_timestamp);
1009 CP(r32.pve, r.pve, pve_start);
1010 CP(r32.pve, r.pve, pve_end);
1011 CP(r32.pve, r.pve, pve_offset);
1012 CP(r32.pve, r.pve, pve_prot);
1013 CP(r32.pve, r.pve, pve_pathlen);
1014 CP(r32.pve, r.pve, pve_fileid);
1015 CP(r32.pve, r.pve, pve_fsid);
1016 PTRIN_CP(r32.pve, r.pve, pve_path);
1017 break;
1018 case PT_COREDUMP:
1019 if (uap->data != sizeof(r32.pc))
1020 error = EINVAL;
1021 else
1022 error = copyin(uap->addr, &r32.pc, uap->data);
1023 CP(r32.pc, r.pc, pc_fd);
1024 CP(r32.pc, r.pc, pc_flags);
1025 r.pc.pc_limit = PAIR32TO64(off_t, r32.pc.pc_limit);
1026 data = sizeof(r.pc);
1027 break;
1028 default:
1029 addr = uap->addr;
1030 break;
1031 }
1032 if (error)
1033 return (error);
1034
1035 error = kern_ptrace(td, uap->req, uap->pid, addr, data);
1036 if (error)
1037 return (error);
1038
1039 switch (uap->req) {
1040 case PT_VM_ENTRY:
1041 CP(r.pve, r32.pve, pve_entry);
1042 CP(r.pve, r32.pve, pve_timestamp);
1043 CP(r.pve, r32.pve, pve_start);
1044 CP(r.pve, r32.pve, pve_end);
1045 CP(r.pve, r32.pve, pve_offset);
1046 CP(r.pve, r32.pve, pve_prot);
1047 CP(r.pve, r32.pve, pve_pathlen);
1048 CP(r.pve, r32.pve, pve_fileid);
1049 CP(r.pve, r32.pve, pve_fsid);
1050 error = copyout(&r32.pve, uap->addr, sizeof(r32.pve));
1051 break;
1052 case PT_IO:
1053 CP(r.piod, r32.piod, piod_len);
1054 error = copyout(&r32.piod, uap->addr, sizeof(r32.piod));
1055 break;
1056 case PT_GETREGS:
1057 error = copyout(&r.reg, uap->addr, sizeof(r.reg));
1058 break;
1059 case PT_GETFPREGS:
1060 error = copyout(&r.fpreg, uap->addr, sizeof(r.fpreg));
1061 break;
1062 case PT_GETDBREGS:
1063 error = copyout(&r.dbreg, uap->addr, sizeof(r.dbreg));
1064 break;
1065 case PT_GET_EVENT_MASK:
1066 /* NB: The size in uap->data is validated in kern_ptrace(). */
1067 error = copyout(&r.ptevents, uap->addr, uap->data);
1068 break;
1069 case PT_LWPINFO:
1070 ptrace_lwpinfo_to32(&r.pl, &r32.pl);
1071 error = copyout(&r32.pl, uap->addr, uap->data);
1072 break;
1073 case PT_GET_SC_ARGS:
1074 for (i = 0; i < nitems(r.args); i++)
1075 r32.args[i] = (uint32_t)r.args[i];
1076 error = copyout(r32.args, uap->addr, MIN(uap->data,
1077 sizeof(r32.args)));
1078 break;
1079 case PT_GET_SC_RET:
1080 ptrace_sc_ret_to32(&r.psr, &r32.psr);
1081 error = copyout(&r32.psr, uap->addr, MIN(uap->data,
1082 sizeof(r32.psr)));
1083 break;
1084 }
1085
1086 return (error);
1087 }
1088
1089 int
freebsd32_copyinuio(struct iovec32 * iovp,u_int iovcnt,struct uio ** uiop)1090 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop)
1091 {
1092 struct iovec32 iov32;
1093 struct iovec *iov;
1094 struct uio *uio;
1095 u_int iovlen;
1096 int error, i;
1097
1098 *uiop = NULL;
1099 if (iovcnt > UIO_MAXIOV)
1100 return (EINVAL);
1101 iovlen = iovcnt * sizeof(struct iovec);
1102 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK);
1103 iov = (struct iovec *)(uio + 1);
1104 for (i = 0; i < iovcnt; i++) {
1105 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32));
1106 if (error) {
1107 free(uio, M_IOV);
1108 return (error);
1109 }
1110 iov[i].iov_base = PTRIN(iov32.iov_base);
1111 iov[i].iov_len = iov32.iov_len;
1112 }
1113 uio->uio_iov = iov;
1114 uio->uio_iovcnt = iovcnt;
1115 uio->uio_segflg = UIO_USERSPACE;
1116 uio->uio_offset = -1;
1117 uio->uio_resid = 0;
1118 for (i = 0; i < iovcnt; i++) {
1119 if (iov->iov_len > INT_MAX - uio->uio_resid) {
1120 free(uio, M_IOV);
1121 return (EINVAL);
1122 }
1123 uio->uio_resid += iov->iov_len;
1124 iov++;
1125 }
1126 *uiop = uio;
1127 return (0);
1128 }
1129
1130 int
freebsd32_readv(struct thread * td,struct freebsd32_readv_args * uap)1131 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap)
1132 {
1133 struct uio *auio;
1134 int error;
1135
1136 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
1137 if (error)
1138 return (error);
1139 error = kern_readv(td, uap->fd, auio);
1140 free(auio, M_IOV);
1141 return (error);
1142 }
1143
1144 int
freebsd32_writev(struct thread * td,struct freebsd32_writev_args * uap)1145 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap)
1146 {
1147 struct uio *auio;
1148 int error;
1149
1150 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
1151 if (error)
1152 return (error);
1153 error = kern_writev(td, uap->fd, auio);
1154 free(auio, M_IOV);
1155 return (error);
1156 }
1157
1158 int
freebsd32_preadv(struct thread * td,struct freebsd32_preadv_args * uap)1159 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap)
1160 {
1161 struct uio *auio;
1162 int error;
1163
1164 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
1165 if (error)
1166 return (error);
1167 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset));
1168 free(auio, M_IOV);
1169 return (error);
1170 }
1171
1172 int
freebsd32_pwritev(struct thread * td,struct freebsd32_pwritev_args * uap)1173 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap)
1174 {
1175 struct uio *auio;
1176 int error;
1177
1178 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
1179 if (error)
1180 return (error);
1181 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset));
1182 free(auio, M_IOV);
1183 return (error);
1184 }
1185
1186 int
freebsd32_copyiniov(struct iovec32 * iovp32,u_int iovcnt,struct iovec ** iovp,int error)1187 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp,
1188 int error)
1189 {
1190 struct iovec32 iov32;
1191 struct iovec *iov;
1192 u_int iovlen;
1193 int i;
1194
1195 *iovp = NULL;
1196 if (iovcnt > UIO_MAXIOV)
1197 return (error);
1198 iovlen = iovcnt * sizeof(struct iovec);
1199 iov = malloc(iovlen, M_IOV, M_WAITOK);
1200 for (i = 0; i < iovcnt; i++) {
1201 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32));
1202 if (error) {
1203 free(iov, M_IOV);
1204 return (error);
1205 }
1206 iov[i].iov_base = PTRIN(iov32.iov_base);
1207 iov[i].iov_len = iov32.iov_len;
1208 }
1209 *iovp = iov;
1210 return (0);
1211 }
1212
1213 static int
freebsd32_copyinmsghdr(struct msghdr32 * msg32,struct msghdr * msg)1214 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg)
1215 {
1216 struct msghdr32 m32;
1217 int error;
1218
1219 error = copyin(msg32, &m32, sizeof(m32));
1220 if (error)
1221 return (error);
1222 msg->msg_name = PTRIN(m32.msg_name);
1223 msg->msg_namelen = m32.msg_namelen;
1224 msg->msg_iov = PTRIN(m32.msg_iov);
1225 msg->msg_iovlen = m32.msg_iovlen;
1226 msg->msg_control = PTRIN(m32.msg_control);
1227 msg->msg_controllen = m32.msg_controllen;
1228 msg->msg_flags = m32.msg_flags;
1229 return (0);
1230 }
1231
1232 static int
freebsd32_copyoutmsghdr(struct msghdr * msg,struct msghdr32 * msg32)1233 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32)
1234 {
1235 struct msghdr32 m32;
1236 int error;
1237
1238 m32.msg_name = PTROUT(msg->msg_name);
1239 m32.msg_namelen = msg->msg_namelen;
1240 m32.msg_iov = PTROUT(msg->msg_iov);
1241 m32.msg_iovlen = msg->msg_iovlen;
1242 m32.msg_control = PTROUT(msg->msg_control);
1243 m32.msg_controllen = msg->msg_controllen;
1244 m32.msg_flags = msg->msg_flags;
1245 error = copyout(&m32, msg32, sizeof(m32));
1246 return (error);
1247 }
1248
1249 #ifndef __mips__
1250 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1)
1251 #else
1252 #define FREEBSD32_ALIGNBYTES (sizeof(long) - 1)
1253 #endif
1254 #define FREEBSD32_ALIGN(p) \
1255 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES)
1256 #define FREEBSD32_CMSG_SPACE(l) \
1257 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l))
1258
1259 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \
1260 FREEBSD32_ALIGN(sizeof(struct cmsghdr)))
1261
1262 static size_t
freebsd32_cmsg_convert(const struct cmsghdr * cm,void * data,socklen_t datalen)1263 freebsd32_cmsg_convert(const struct cmsghdr *cm, void *data, socklen_t datalen)
1264 {
1265 size_t copylen;
1266 union {
1267 struct timespec32 ts;
1268 struct timeval32 tv;
1269 struct bintime32 bt;
1270 } tmp32;
1271
1272 union {
1273 struct timespec ts;
1274 struct timeval tv;
1275 struct bintime bt;
1276 } *in;
1277
1278 in = data;
1279 copylen = 0;
1280 switch (cm->cmsg_level) {
1281 case SOL_SOCKET:
1282 switch (cm->cmsg_type) {
1283 case SCM_TIMESTAMP:
1284 TV_CP(*in, tmp32, tv);
1285 copylen = sizeof(tmp32.tv);
1286 break;
1287
1288 case SCM_BINTIME:
1289 BT_CP(*in, tmp32, bt);
1290 copylen = sizeof(tmp32.bt);
1291 break;
1292
1293 case SCM_REALTIME:
1294 case SCM_MONOTONIC:
1295 TS_CP(*in, tmp32, ts);
1296 copylen = sizeof(tmp32.ts);
1297 break;
1298
1299 default:
1300 break;
1301 }
1302
1303 default:
1304 break;
1305 }
1306
1307 if (copylen == 0)
1308 return (datalen);
1309
1310 KASSERT((datalen >= copylen), ("corrupted cmsghdr"));
1311
1312 bcopy(&tmp32, data, copylen);
1313 return (copylen);
1314 }
1315
1316 static int
freebsd32_copy_msg_out(struct msghdr * msg,struct mbuf * control)1317 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control)
1318 {
1319 struct cmsghdr *cm;
1320 void *data;
1321 socklen_t clen, datalen, datalen_out, oldclen;
1322 int error;
1323 caddr_t ctlbuf;
1324 int len, maxlen, copylen;
1325 struct mbuf *m;
1326 error = 0;
1327
1328 len = msg->msg_controllen;
1329 maxlen = msg->msg_controllen;
1330 msg->msg_controllen = 0;
1331
1332 ctlbuf = msg->msg_control;
1333 for (m = control; m != NULL && len > 0; m = m->m_next) {
1334 cm = mtod(m, struct cmsghdr *);
1335 clen = m->m_len;
1336 while (cm != NULL) {
1337 if (sizeof(struct cmsghdr) > clen ||
1338 cm->cmsg_len > clen) {
1339 error = EINVAL;
1340 break;
1341 }
1342
1343 data = CMSG_DATA(cm);
1344 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data;
1345 datalen_out = freebsd32_cmsg_convert(cm, data, datalen);
1346
1347 /*
1348 * Copy out the message header. Preserve the native
1349 * message size in case we need to inspect the message
1350 * contents later.
1351 */
1352 copylen = sizeof(struct cmsghdr);
1353 if (len < copylen) {
1354 msg->msg_flags |= MSG_CTRUNC;
1355 m_dispose_extcontrolm(m);
1356 goto exit;
1357 }
1358 oldclen = cm->cmsg_len;
1359 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) +
1360 datalen_out;
1361 error = copyout(cm, ctlbuf, copylen);
1362 cm->cmsg_len = oldclen;
1363 if (error != 0)
1364 goto exit;
1365
1366 ctlbuf += FREEBSD32_ALIGN(copylen);
1367 len -= FREEBSD32_ALIGN(copylen);
1368
1369 copylen = datalen_out;
1370 if (len < copylen) {
1371 msg->msg_flags |= MSG_CTRUNC;
1372 m_dispose_extcontrolm(m);
1373 break;
1374 }
1375
1376 /* Copy out the message data. */
1377 error = copyout(data, ctlbuf, copylen);
1378 if (error)
1379 goto exit;
1380
1381 ctlbuf += FREEBSD32_ALIGN(copylen);
1382 len -= FREEBSD32_ALIGN(copylen);
1383
1384 if (CMSG_SPACE(datalen) < clen) {
1385 clen -= CMSG_SPACE(datalen);
1386 cm = (struct cmsghdr *)
1387 ((caddr_t)cm + CMSG_SPACE(datalen));
1388 } else {
1389 clen = 0;
1390 cm = NULL;
1391 }
1392
1393 msg->msg_controllen +=
1394 FREEBSD32_CMSG_SPACE(datalen_out);
1395 }
1396 }
1397 if (len == 0 && m != NULL) {
1398 msg->msg_flags |= MSG_CTRUNC;
1399 m_dispose_extcontrolm(m);
1400 }
1401
1402 exit:
1403 return (error);
1404 }
1405
1406 int
freebsd32_recvmsg(struct thread * td,struct freebsd32_recvmsg_args * uap)1407 freebsd32_recvmsg(struct thread *td, struct freebsd32_recvmsg_args *uap)
1408 {
1409 struct msghdr msg;
1410 struct iovec *uiov, *iov;
1411 struct mbuf *control = NULL;
1412 struct mbuf **controlp;
1413 int error;
1414
1415 error = freebsd32_copyinmsghdr(uap->msg, &msg);
1416 if (error)
1417 return (error);
1418 error = freebsd32_copyiniov((void *)msg.msg_iov, msg.msg_iovlen, &iov,
1419 EMSGSIZE);
1420 if (error)
1421 return (error);
1422 msg.msg_flags = uap->flags;
1423 uiov = msg.msg_iov;
1424 msg.msg_iov = iov;
1425
1426 controlp = (msg.msg_control != NULL) ? &control : NULL;
1427 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp);
1428 if (error == 0) {
1429 msg.msg_iov = uiov;
1430
1431 if (control != NULL)
1432 error = freebsd32_copy_msg_out(&msg, control);
1433 else
1434 msg.msg_controllen = 0;
1435
1436 if (error == 0)
1437 error = freebsd32_copyoutmsghdr(&msg, uap->msg);
1438 }
1439 free(iov, M_IOV);
1440
1441 if (control != NULL) {
1442 if (error != 0)
1443 m_dispose_extcontrolm(control);
1444 m_freem(control);
1445 }
1446
1447 return (error);
1448 }
1449
1450 /*
1451 * Copy-in the array of control messages constructed using alignment
1452 * and padding suitable for a 32-bit environment and construct an
1453 * mbuf using alignment and padding suitable for a 64-bit kernel.
1454 * The alignment and padding are defined indirectly by CMSG_DATA(),
1455 * CMSG_SPACE() and CMSG_LEN().
1456 */
1457 static int
freebsd32_copyin_control(struct mbuf ** mp,caddr_t buf,u_int buflen)1458 freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen)
1459 {
1460 struct cmsghdr *cm;
1461 struct mbuf *m;
1462 void *in, *in1, *md;
1463 u_int msglen, outlen;
1464 int error;
1465
1466 if (buflen > MCLBYTES)
1467 return (EINVAL);
1468
1469 in = malloc(buflen, M_TEMP, M_WAITOK);
1470 error = copyin(buf, in, buflen);
1471 if (error != 0)
1472 goto out;
1473
1474 /*
1475 * Make a pass over the input buffer to determine the amount of space
1476 * required for 64 bit-aligned copies of the control messages.
1477 */
1478 in1 = in;
1479 outlen = 0;
1480 while (buflen > 0) {
1481 if (buflen < sizeof(*cm)) {
1482 error = EINVAL;
1483 break;
1484 }
1485 cm = (struct cmsghdr *)in1;
1486 if (cm->cmsg_len < FREEBSD32_ALIGN(sizeof(*cm))) {
1487 error = EINVAL;
1488 break;
1489 }
1490 msglen = FREEBSD32_ALIGN(cm->cmsg_len);
1491 if (msglen > buflen || msglen < cm->cmsg_len) {
1492 error = EINVAL;
1493 break;
1494 }
1495 buflen -= msglen;
1496
1497 in1 = (char *)in1 + msglen;
1498 outlen += CMSG_ALIGN(sizeof(*cm)) +
1499 CMSG_ALIGN(msglen - FREEBSD32_ALIGN(sizeof(*cm)));
1500 }
1501 if (error == 0 && outlen > MCLBYTES) {
1502 /*
1503 * XXXMJ This implies that the upper limit on 32-bit aligned
1504 * control messages is less than MCLBYTES, and so we are not
1505 * perfectly compatible. However, there is no platform
1506 * guarantee that mbuf clusters larger than MCLBYTES can be
1507 * allocated.
1508 */
1509 error = EINVAL;
1510 }
1511 if (error != 0)
1512 goto out;
1513
1514 m = m_get2(outlen, M_WAITOK, MT_CONTROL, 0);
1515 m->m_len = outlen;
1516 md = mtod(m, void *);
1517
1518 /*
1519 * Make a second pass over input messages, copying them into the output
1520 * buffer.
1521 */
1522 in1 = in;
1523 while (outlen > 0) {
1524 /* Copy the message header and align the length field. */
1525 cm = md;
1526 memcpy(cm, in1, sizeof(*cm));
1527 msglen = cm->cmsg_len - FREEBSD32_ALIGN(sizeof(*cm));
1528 cm->cmsg_len = CMSG_ALIGN(sizeof(*cm)) + msglen;
1529
1530 /* Copy the message body. */
1531 in1 = (char *)in1 + FREEBSD32_ALIGN(sizeof(*cm));
1532 md = (char *)md + CMSG_ALIGN(sizeof(*cm));
1533 memcpy(md, in1, msglen);
1534 in1 = (char *)in1 + FREEBSD32_ALIGN(msglen);
1535 md = (char *)md + CMSG_ALIGN(msglen);
1536 KASSERT(outlen >= CMSG_ALIGN(sizeof(*cm)) + CMSG_ALIGN(msglen),
1537 ("outlen %u underflow, msglen %u", outlen, msglen));
1538 outlen -= CMSG_ALIGN(sizeof(*cm)) + CMSG_ALIGN(msglen);
1539 }
1540
1541 *mp = m;
1542 out:
1543 free(in, M_TEMP);
1544 return (error);
1545 }
1546
1547 int
freebsd32_sendmsg(struct thread * td,struct freebsd32_sendmsg_args * uap)1548 freebsd32_sendmsg(struct thread *td, struct freebsd32_sendmsg_args *uap)
1549 {
1550 struct msghdr msg;
1551 struct iovec *iov;
1552 struct mbuf *control = NULL;
1553 struct sockaddr *to = NULL;
1554 int error;
1555
1556 error = freebsd32_copyinmsghdr(uap->msg, &msg);
1557 if (error)
1558 return (error);
1559 error = freebsd32_copyiniov((void *)msg.msg_iov, msg.msg_iovlen, &iov,
1560 EMSGSIZE);
1561 if (error)
1562 return (error);
1563 msg.msg_iov = iov;
1564 if (msg.msg_name != NULL) {
1565 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen);
1566 if (error) {
1567 to = NULL;
1568 goto out;
1569 }
1570 msg.msg_name = to;
1571 }
1572
1573 if (msg.msg_control) {
1574 if (msg.msg_controllen < sizeof(struct cmsghdr)) {
1575 error = EINVAL;
1576 goto out;
1577 }
1578
1579 error = freebsd32_copyin_control(&control, msg.msg_control,
1580 msg.msg_controllen);
1581 if (error)
1582 goto out;
1583
1584 msg.msg_control = NULL;
1585 msg.msg_controllen = 0;
1586 }
1587
1588 error = kern_sendit(td, uap->s, &msg, uap->flags, control,
1589 UIO_USERSPACE);
1590
1591 out:
1592 free(iov, M_IOV);
1593 if (to)
1594 free(to, M_SONAME);
1595 return (error);
1596 }
1597
1598 int
freebsd32_recvfrom(struct thread * td,struct freebsd32_recvfrom_args * uap)1599 freebsd32_recvfrom(struct thread *td,
1600 struct freebsd32_recvfrom_args *uap)
1601 {
1602 struct msghdr msg;
1603 struct iovec aiov;
1604 int error;
1605
1606 if (uap->fromlenaddr) {
1607 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen,
1608 sizeof(msg.msg_namelen));
1609 if (error)
1610 return (error);
1611 } else {
1612 msg.msg_namelen = 0;
1613 }
1614
1615 msg.msg_name = PTRIN(uap->from);
1616 msg.msg_iov = &aiov;
1617 msg.msg_iovlen = 1;
1618 aiov.iov_base = PTRIN(uap->buf);
1619 aiov.iov_len = uap->len;
1620 msg.msg_control = NULL;
1621 msg.msg_flags = uap->flags;
1622 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL);
1623 if (error == 0 && uap->fromlenaddr)
1624 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr),
1625 sizeof (msg.msg_namelen));
1626 return (error);
1627 }
1628
1629 int
freebsd32_settimeofday(struct thread * td,struct freebsd32_settimeofday_args * uap)1630 freebsd32_settimeofday(struct thread *td,
1631 struct freebsd32_settimeofday_args *uap)
1632 {
1633 struct timeval32 tv32;
1634 struct timeval tv, *tvp;
1635 struct timezone tz, *tzp;
1636 int error;
1637
1638 if (uap->tv) {
1639 error = copyin(uap->tv, &tv32, sizeof(tv32));
1640 if (error)
1641 return (error);
1642 CP(tv32, tv, tv_sec);
1643 CP(tv32, tv, tv_usec);
1644 tvp = &tv;
1645 } else
1646 tvp = NULL;
1647 if (uap->tzp) {
1648 error = copyin(uap->tzp, &tz, sizeof(tz));
1649 if (error)
1650 return (error);
1651 tzp = &tz;
1652 } else
1653 tzp = NULL;
1654 return (kern_settimeofday(td, tvp, tzp));
1655 }
1656
1657 int
freebsd32_utimes(struct thread * td,struct freebsd32_utimes_args * uap)1658 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap)
1659 {
1660 struct timeval32 s32[2];
1661 struct timeval s[2], *sp;
1662 int error;
1663
1664 if (uap->tptr != NULL) {
1665 error = copyin(uap->tptr, s32, sizeof(s32));
1666 if (error)
1667 return (error);
1668 CP(s32[0], s[0], tv_sec);
1669 CP(s32[0], s[0], tv_usec);
1670 CP(s32[1], s[1], tv_sec);
1671 CP(s32[1], s[1], tv_usec);
1672 sp = s;
1673 } else
1674 sp = NULL;
1675 return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE,
1676 sp, UIO_SYSSPACE));
1677 }
1678
1679 int
freebsd32_lutimes(struct thread * td,struct freebsd32_lutimes_args * uap)1680 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap)
1681 {
1682 struct timeval32 s32[2];
1683 struct timeval s[2], *sp;
1684 int error;
1685
1686 if (uap->tptr != NULL) {
1687 error = copyin(uap->tptr, s32, sizeof(s32));
1688 if (error)
1689 return (error);
1690 CP(s32[0], s[0], tv_sec);
1691 CP(s32[0], s[0], tv_usec);
1692 CP(s32[1], s[1], tv_sec);
1693 CP(s32[1], s[1], tv_usec);
1694 sp = s;
1695 } else
1696 sp = NULL;
1697 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE));
1698 }
1699
1700 int
freebsd32_futimes(struct thread * td,struct freebsd32_futimes_args * uap)1701 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap)
1702 {
1703 struct timeval32 s32[2];
1704 struct timeval s[2], *sp;
1705 int error;
1706
1707 if (uap->tptr != NULL) {
1708 error = copyin(uap->tptr, s32, sizeof(s32));
1709 if (error)
1710 return (error);
1711 CP(s32[0], s[0], tv_sec);
1712 CP(s32[0], s[0], tv_usec);
1713 CP(s32[1], s[1], tv_sec);
1714 CP(s32[1], s[1], tv_usec);
1715 sp = s;
1716 } else
1717 sp = NULL;
1718 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE));
1719 }
1720
1721 int
freebsd32_futimesat(struct thread * td,struct freebsd32_futimesat_args * uap)1722 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap)
1723 {
1724 struct timeval32 s32[2];
1725 struct timeval s[2], *sp;
1726 int error;
1727
1728 if (uap->times != NULL) {
1729 error = copyin(uap->times, s32, sizeof(s32));
1730 if (error)
1731 return (error);
1732 CP(s32[0], s[0], tv_sec);
1733 CP(s32[0], s[0], tv_usec);
1734 CP(s32[1], s[1], tv_sec);
1735 CP(s32[1], s[1], tv_usec);
1736 sp = s;
1737 } else
1738 sp = NULL;
1739 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE,
1740 sp, UIO_SYSSPACE));
1741 }
1742
1743 int
freebsd32_futimens(struct thread * td,struct freebsd32_futimens_args * uap)1744 freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap)
1745 {
1746 struct timespec32 ts32[2];
1747 struct timespec ts[2], *tsp;
1748 int error;
1749
1750 if (uap->times != NULL) {
1751 error = copyin(uap->times, ts32, sizeof(ts32));
1752 if (error)
1753 return (error);
1754 CP(ts32[0], ts[0], tv_sec);
1755 CP(ts32[0], ts[0], tv_nsec);
1756 CP(ts32[1], ts[1], tv_sec);
1757 CP(ts32[1], ts[1], tv_nsec);
1758 tsp = ts;
1759 } else
1760 tsp = NULL;
1761 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE));
1762 }
1763
1764 int
freebsd32_utimensat(struct thread * td,struct freebsd32_utimensat_args * uap)1765 freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap)
1766 {
1767 struct timespec32 ts32[2];
1768 struct timespec ts[2], *tsp;
1769 int error;
1770
1771 if (uap->times != NULL) {
1772 error = copyin(uap->times, ts32, sizeof(ts32));
1773 if (error)
1774 return (error);
1775 CP(ts32[0], ts[0], tv_sec);
1776 CP(ts32[0], ts[0], tv_nsec);
1777 CP(ts32[1], ts[1], tv_sec);
1778 CP(ts32[1], ts[1], tv_nsec);
1779 tsp = ts;
1780 } else
1781 tsp = NULL;
1782 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE,
1783 tsp, UIO_SYSSPACE, uap->flag));
1784 }
1785
1786 int
freebsd32_adjtime(struct thread * td,struct freebsd32_adjtime_args * uap)1787 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap)
1788 {
1789 struct timeval32 tv32;
1790 struct timeval delta, olddelta, *deltap;
1791 int error;
1792
1793 if (uap->delta) {
1794 error = copyin(uap->delta, &tv32, sizeof(tv32));
1795 if (error)
1796 return (error);
1797 CP(tv32, delta, tv_sec);
1798 CP(tv32, delta, tv_usec);
1799 deltap = δ
1800 } else
1801 deltap = NULL;
1802 error = kern_adjtime(td, deltap, &olddelta);
1803 if (uap->olddelta && error == 0) {
1804 CP(olddelta, tv32, tv_sec);
1805 CP(olddelta, tv32, tv_usec);
1806 error = copyout(&tv32, uap->olddelta, sizeof(tv32));
1807 }
1808 return (error);
1809 }
1810
1811 #ifdef COMPAT_FREEBSD4
1812 int
freebsd4_freebsd32_statfs(struct thread * td,struct freebsd4_freebsd32_statfs_args * uap)1813 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap)
1814 {
1815 struct statfs32 s32;
1816 struct statfs *sp;
1817 int error;
1818
1819 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
1820 error = kern_statfs(td, uap->path, UIO_USERSPACE, sp);
1821 if (error == 0) {
1822 copy_statfs(sp, &s32);
1823 error = copyout(&s32, uap->buf, sizeof(s32));
1824 }
1825 free(sp, M_STATFS);
1826 return (error);
1827 }
1828 #endif
1829
1830 #ifdef COMPAT_FREEBSD4
1831 int
freebsd4_freebsd32_fstatfs(struct thread * td,struct freebsd4_freebsd32_fstatfs_args * uap)1832 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap)
1833 {
1834 struct statfs32 s32;
1835 struct statfs *sp;
1836 int error;
1837
1838 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
1839 error = kern_fstatfs(td, uap->fd, sp);
1840 if (error == 0) {
1841 copy_statfs(sp, &s32);
1842 error = copyout(&s32, uap->buf, sizeof(s32));
1843 }
1844 free(sp, M_STATFS);
1845 return (error);
1846 }
1847 #endif
1848
1849 #ifdef COMPAT_FREEBSD4
1850 int
freebsd4_freebsd32_fhstatfs(struct thread * td,struct freebsd4_freebsd32_fhstatfs_args * uap)1851 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap)
1852 {
1853 struct statfs32 s32;
1854 struct statfs *sp;
1855 fhandle_t fh;
1856 int error;
1857
1858 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0)
1859 return (error);
1860 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
1861 error = kern_fhstatfs(td, fh, sp);
1862 if (error == 0) {
1863 copy_statfs(sp, &s32);
1864 error = copyout(&s32, uap->buf, sizeof(s32));
1865 }
1866 free(sp, M_STATFS);
1867 return (error);
1868 }
1869 #endif
1870
1871 int
freebsd32_pread(struct thread * td,struct freebsd32_pread_args * uap)1872 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap)
1873 {
1874
1875 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte,
1876 PAIR32TO64(off_t, uap->offset)));
1877 }
1878
1879 int
freebsd32_pwrite(struct thread * td,struct freebsd32_pwrite_args * uap)1880 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap)
1881 {
1882
1883 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte,
1884 PAIR32TO64(off_t, uap->offset)));
1885 }
1886
1887 #ifdef COMPAT_43
1888 int
ofreebsd32_lseek(struct thread * td,struct ofreebsd32_lseek_args * uap)1889 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap)
1890 {
1891
1892 return (kern_lseek(td, uap->fd, uap->offset, uap->whence));
1893 }
1894 #endif
1895
1896 int
freebsd32_lseek(struct thread * td,struct freebsd32_lseek_args * uap)1897 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap)
1898 {
1899 int error;
1900 off_t pos;
1901
1902 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset),
1903 uap->whence);
1904 /* Expand the quad return into two parts for eax and edx */
1905 pos = td->td_uretoff.tdu_off;
1906 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */
1907 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */
1908 return error;
1909 }
1910
1911 int
freebsd32_truncate(struct thread * td,struct freebsd32_truncate_args * uap)1912 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap)
1913 {
1914
1915 return (kern_truncate(td, uap->path, UIO_USERSPACE,
1916 PAIR32TO64(off_t, uap->length)));
1917 }
1918
1919 int
freebsd32_ftruncate(struct thread * td,struct freebsd32_ftruncate_args * uap)1920 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap)
1921 {
1922
1923 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length)));
1924 }
1925
1926 #ifdef COMPAT_43
1927 int
ofreebsd32_getdirentries(struct thread * td,struct ofreebsd32_getdirentries_args * uap)1928 ofreebsd32_getdirentries(struct thread *td,
1929 struct ofreebsd32_getdirentries_args *uap)
1930 {
1931 struct ogetdirentries_args ap;
1932 int error;
1933 long loff;
1934 int32_t loff_cut;
1935
1936 ap.fd = uap->fd;
1937 ap.buf = uap->buf;
1938 ap.count = uap->count;
1939 ap.basep = NULL;
1940 error = kern_ogetdirentries(td, &ap, &loff);
1941 if (error == 0) {
1942 loff_cut = loff;
1943 error = copyout(&loff_cut, uap->basep, sizeof(int32_t));
1944 }
1945 return (error);
1946 }
1947 #endif
1948
1949 #if defined(COMPAT_FREEBSD11)
1950 int
freebsd11_freebsd32_getdirentries(struct thread * td,struct freebsd11_freebsd32_getdirentries_args * uap)1951 freebsd11_freebsd32_getdirentries(struct thread *td,
1952 struct freebsd11_freebsd32_getdirentries_args *uap)
1953 {
1954 long base;
1955 int32_t base32;
1956 int error;
1957
1958 error = freebsd11_kern_getdirentries(td, uap->fd, uap->buf, uap->count,
1959 &base, NULL);
1960 if (error)
1961 return (error);
1962 if (uap->basep != NULL) {
1963 base32 = base;
1964 error = copyout(&base32, uap->basep, sizeof(int32_t));
1965 }
1966 return (error);
1967 }
1968
1969 int
freebsd11_freebsd32_getdents(struct thread * td,struct freebsd11_freebsd32_getdents_args * uap)1970 freebsd11_freebsd32_getdents(struct thread *td,
1971 struct freebsd11_freebsd32_getdents_args *uap)
1972 {
1973 struct freebsd11_freebsd32_getdirentries_args ap;
1974
1975 ap.fd = uap->fd;
1976 ap.buf = uap->buf;
1977 ap.count = uap->count;
1978 ap.basep = NULL;
1979 return (freebsd11_freebsd32_getdirentries(td, &ap));
1980 }
1981 #endif /* COMPAT_FREEBSD11 */
1982
1983 #ifdef COMPAT_FREEBSD6
1984 /* versions with the 'int pad' argument */
1985 int
freebsd6_freebsd32_pread(struct thread * td,struct freebsd6_freebsd32_pread_args * uap)1986 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap)
1987 {
1988
1989 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte,
1990 PAIR32TO64(off_t, uap->offset)));
1991 }
1992
1993 int
freebsd6_freebsd32_pwrite(struct thread * td,struct freebsd6_freebsd32_pwrite_args * uap)1994 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap)
1995 {
1996
1997 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte,
1998 PAIR32TO64(off_t, uap->offset)));
1999 }
2000
2001 int
freebsd6_freebsd32_lseek(struct thread * td,struct freebsd6_freebsd32_lseek_args * uap)2002 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap)
2003 {
2004 int error;
2005 off_t pos;
2006
2007 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset),
2008 uap->whence);
2009 /* Expand the quad return into two parts for eax and edx */
2010 pos = *(off_t *)(td->td_retval);
2011 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */
2012 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */
2013 return error;
2014 }
2015
2016 int
freebsd6_freebsd32_truncate(struct thread * td,struct freebsd6_freebsd32_truncate_args * uap)2017 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap)
2018 {
2019
2020 return (kern_truncate(td, uap->path, UIO_USERSPACE,
2021 PAIR32TO64(off_t, uap->length)));
2022 }
2023
2024 int
freebsd6_freebsd32_ftruncate(struct thread * td,struct freebsd6_freebsd32_ftruncate_args * uap)2025 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap)
2026 {
2027
2028 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length)));
2029 }
2030 #endif /* COMPAT_FREEBSD6 */
2031
2032 struct sf_hdtr32 {
2033 uint32_t headers;
2034 int hdr_cnt;
2035 uint32_t trailers;
2036 int trl_cnt;
2037 };
2038
2039 static int
freebsd32_do_sendfile(struct thread * td,struct freebsd32_sendfile_args * uap,int compat)2040 freebsd32_do_sendfile(struct thread *td,
2041 struct freebsd32_sendfile_args *uap, int compat)
2042 {
2043 struct sf_hdtr32 hdtr32;
2044 struct sf_hdtr hdtr;
2045 struct uio *hdr_uio, *trl_uio;
2046 struct file *fp;
2047 cap_rights_t rights;
2048 struct iovec32 *iov32;
2049 off_t offset, sbytes;
2050 int error;
2051
2052 offset = PAIR32TO64(off_t, uap->offset);
2053 if (offset < 0)
2054 return (EINVAL);
2055
2056 hdr_uio = trl_uio = NULL;
2057
2058 if (uap->hdtr != NULL) {
2059 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32));
2060 if (error)
2061 goto out;
2062 PTRIN_CP(hdtr32, hdtr, headers);
2063 CP(hdtr32, hdtr, hdr_cnt);
2064 PTRIN_CP(hdtr32, hdtr, trailers);
2065 CP(hdtr32, hdtr, trl_cnt);
2066
2067 if (hdtr.headers != NULL) {
2068 iov32 = PTRIN(hdtr32.headers);
2069 error = freebsd32_copyinuio(iov32,
2070 hdtr32.hdr_cnt, &hdr_uio);
2071 if (error)
2072 goto out;
2073 #ifdef COMPAT_FREEBSD4
2074 /*
2075 * In FreeBSD < 5.0 the nbytes to send also included
2076 * the header. If compat is specified subtract the
2077 * header size from nbytes.
2078 */
2079 if (compat) {
2080 if (uap->nbytes > hdr_uio->uio_resid)
2081 uap->nbytes -= hdr_uio->uio_resid;
2082 else
2083 uap->nbytes = 0;
2084 }
2085 #endif
2086 }
2087 if (hdtr.trailers != NULL) {
2088 iov32 = PTRIN(hdtr32.trailers);
2089 error = freebsd32_copyinuio(iov32,
2090 hdtr32.trl_cnt, &trl_uio);
2091 if (error)
2092 goto out;
2093 }
2094 }
2095
2096 AUDIT_ARG_FD(uap->fd);
2097
2098 if ((error = fget_read(td, uap->fd,
2099 cap_rights_init_one(&rights, CAP_PREAD), &fp)) != 0)
2100 goto out;
2101
2102 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset,
2103 uap->nbytes, &sbytes, uap->flags, td);
2104 fdrop(fp, td);
2105
2106 if (uap->sbytes != NULL)
2107 copyout(&sbytes, uap->sbytes, sizeof(off_t));
2108
2109 out:
2110 if (hdr_uio)
2111 free(hdr_uio, M_IOV);
2112 if (trl_uio)
2113 free(trl_uio, M_IOV);
2114 return (error);
2115 }
2116
2117 #ifdef COMPAT_FREEBSD4
2118 int
freebsd4_freebsd32_sendfile(struct thread * td,struct freebsd4_freebsd32_sendfile_args * uap)2119 freebsd4_freebsd32_sendfile(struct thread *td,
2120 struct freebsd4_freebsd32_sendfile_args *uap)
2121 {
2122 return (freebsd32_do_sendfile(td,
2123 (struct freebsd32_sendfile_args *)uap, 1));
2124 }
2125 #endif
2126
2127 int
freebsd32_sendfile(struct thread * td,struct freebsd32_sendfile_args * uap)2128 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap)
2129 {
2130
2131 return (freebsd32_do_sendfile(td, uap, 0));
2132 }
2133
2134 static void
copy_stat(struct stat * in,struct stat32 * out)2135 copy_stat(struct stat *in, struct stat32 *out)
2136 {
2137
2138 #ifndef __amd64__
2139 /*
2140 * 32-bit architectures other than i386 have 64-bit time_t. This
2141 * results in struct timespec32 with 12 bytes for tv_sec and tv_nsec,
2142 * and 4 bytes of padding. Zero the padding holes in struct stat32.
2143 */
2144 bzero(&out->st_atim, sizeof(out->st_atim));
2145 bzero(&out->st_mtim, sizeof(out->st_mtim));
2146 bzero(&out->st_ctim, sizeof(out->st_ctim));
2147 bzero(&out->st_birthtim, sizeof(out->st_birthtim));
2148 #endif
2149 CP(*in, *out, st_dev);
2150 CP(*in, *out, st_ino);
2151 CP(*in, *out, st_mode);
2152 CP(*in, *out, st_nlink);
2153 CP(*in, *out, st_uid);
2154 CP(*in, *out, st_gid);
2155 CP(*in, *out, st_rdev);
2156 TS_CP(*in, *out, st_atim);
2157 TS_CP(*in, *out, st_mtim);
2158 TS_CP(*in, *out, st_ctim);
2159 CP(*in, *out, st_size);
2160 CP(*in, *out, st_blocks);
2161 CP(*in, *out, st_blksize);
2162 CP(*in, *out, st_flags);
2163 CP(*in, *out, st_gen);
2164 TS_CP(*in, *out, st_birthtim);
2165 out->st_padding0 = 0;
2166 out->st_padding1 = 0;
2167 #ifdef __STAT32_TIME_T_EXT
2168 out->st_atim_ext = 0;
2169 out->st_mtim_ext = 0;
2170 out->st_ctim_ext = 0;
2171 out->st_btim_ext = 0;
2172 #endif
2173 bzero(out->st_spare, sizeof(out->st_spare));
2174 }
2175
2176 #ifdef COMPAT_43
2177 static void
copy_ostat(struct stat * in,struct ostat32 * out)2178 copy_ostat(struct stat *in, struct ostat32 *out)
2179 {
2180
2181 bzero(out, sizeof(*out));
2182 CP(*in, *out, st_dev);
2183 CP(*in, *out, st_ino);
2184 CP(*in, *out, st_mode);
2185 CP(*in, *out, st_nlink);
2186 CP(*in, *out, st_uid);
2187 CP(*in, *out, st_gid);
2188 CP(*in, *out, st_rdev);
2189 out->st_size = MIN(in->st_size, INT32_MAX);
2190 TS_CP(*in, *out, st_atim);
2191 TS_CP(*in, *out, st_mtim);
2192 TS_CP(*in, *out, st_ctim);
2193 CP(*in, *out, st_blksize);
2194 CP(*in, *out, st_blocks);
2195 CP(*in, *out, st_flags);
2196 CP(*in, *out, st_gen);
2197 }
2198 #endif
2199
2200 #ifdef COMPAT_43
2201 int
ofreebsd32_stat(struct thread * td,struct ofreebsd32_stat_args * uap)2202 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap)
2203 {
2204 struct stat sb;
2205 struct ostat32 sb32;
2206 int error;
2207
2208 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE,
2209 &sb, NULL);
2210 if (error)
2211 return (error);
2212 copy_ostat(&sb, &sb32);
2213 error = copyout(&sb32, uap->ub, sizeof (sb32));
2214 return (error);
2215 }
2216 #endif
2217
2218 int
freebsd32_fstat(struct thread * td,struct freebsd32_fstat_args * uap)2219 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap)
2220 {
2221 struct stat ub;
2222 struct stat32 ub32;
2223 int error;
2224
2225 error = kern_fstat(td, uap->fd, &ub);
2226 if (error)
2227 return (error);
2228 copy_stat(&ub, &ub32);
2229 error = copyout(&ub32, uap->ub, sizeof(ub32));
2230 return (error);
2231 }
2232
2233 #ifdef COMPAT_43
2234 int
ofreebsd32_fstat(struct thread * td,struct ofreebsd32_fstat_args * uap)2235 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap)
2236 {
2237 struct stat ub;
2238 struct ostat32 ub32;
2239 int error;
2240
2241 error = kern_fstat(td, uap->fd, &ub);
2242 if (error)
2243 return (error);
2244 copy_ostat(&ub, &ub32);
2245 error = copyout(&ub32, uap->ub, sizeof(ub32));
2246 return (error);
2247 }
2248 #endif
2249
2250 int
freebsd32_fstatat(struct thread * td,struct freebsd32_fstatat_args * uap)2251 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap)
2252 {
2253 struct stat ub;
2254 struct stat32 ub32;
2255 int error;
2256
2257 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE,
2258 &ub, NULL);
2259 if (error)
2260 return (error);
2261 copy_stat(&ub, &ub32);
2262 error = copyout(&ub32, uap->buf, sizeof(ub32));
2263 return (error);
2264 }
2265
2266 #ifdef COMPAT_43
2267 int
ofreebsd32_lstat(struct thread * td,struct ofreebsd32_lstat_args * uap)2268 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap)
2269 {
2270 struct stat sb;
2271 struct ostat32 sb32;
2272 int error;
2273
2274 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path,
2275 UIO_USERSPACE, &sb, NULL);
2276 if (error)
2277 return (error);
2278 copy_ostat(&sb, &sb32);
2279 error = copyout(&sb32, uap->ub, sizeof (sb32));
2280 return (error);
2281 }
2282 #endif
2283
2284 int
freebsd32_fhstat(struct thread * td,struct freebsd32_fhstat_args * uap)2285 freebsd32_fhstat(struct thread *td, struct freebsd32_fhstat_args *uap)
2286 {
2287 struct stat sb;
2288 struct stat32 sb32;
2289 struct fhandle fh;
2290 int error;
2291
2292 error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t));
2293 if (error != 0)
2294 return (error);
2295 error = kern_fhstat(td, fh, &sb);
2296 if (error != 0)
2297 return (error);
2298 copy_stat(&sb, &sb32);
2299 error = copyout(&sb32, uap->sb, sizeof (sb32));
2300 return (error);
2301 }
2302
2303 #if defined(COMPAT_FREEBSD11)
2304 extern int ino64_trunc_error;
2305
2306 static int
freebsd11_cvtstat32(struct stat * in,struct freebsd11_stat32 * out)2307 freebsd11_cvtstat32(struct stat *in, struct freebsd11_stat32 *out)
2308 {
2309
2310 #ifndef __amd64__
2311 /*
2312 * 32-bit architectures other than i386 have 64-bit time_t. This
2313 * results in struct timespec32 with 12 bytes for tv_sec and tv_nsec,
2314 * and 4 bytes of padding. Zero the padding holes in freebsd11_stat32.
2315 */
2316 bzero(&out->st_atim, sizeof(out->st_atim));
2317 bzero(&out->st_mtim, sizeof(out->st_mtim));
2318 bzero(&out->st_ctim, sizeof(out->st_ctim));
2319 bzero(&out->st_birthtim, sizeof(out->st_birthtim));
2320 #endif
2321
2322 CP(*in, *out, st_ino);
2323 if (in->st_ino != out->st_ino) {
2324 switch (ino64_trunc_error) {
2325 default:
2326 case 0:
2327 break;
2328 case 1:
2329 return (EOVERFLOW);
2330 case 2:
2331 out->st_ino = UINT32_MAX;
2332 break;
2333 }
2334 }
2335 CP(*in, *out, st_nlink);
2336 if (in->st_nlink != out->st_nlink) {
2337 switch (ino64_trunc_error) {
2338 default:
2339 case 0:
2340 break;
2341 case 1:
2342 return (EOVERFLOW);
2343 case 2:
2344 out->st_nlink = UINT16_MAX;
2345 break;
2346 }
2347 }
2348 out->st_dev = in->st_dev;
2349 if (out->st_dev != in->st_dev) {
2350 switch (ino64_trunc_error) {
2351 default:
2352 break;
2353 case 1:
2354 return (EOVERFLOW);
2355 }
2356 }
2357 CP(*in, *out, st_mode);
2358 CP(*in, *out, st_uid);
2359 CP(*in, *out, st_gid);
2360 out->st_rdev = in->st_rdev;
2361 if (out->st_rdev != in->st_rdev) {
2362 switch (ino64_trunc_error) {
2363 default:
2364 break;
2365 case 1:
2366 return (EOVERFLOW);
2367 }
2368 }
2369 TS_CP(*in, *out, st_atim);
2370 TS_CP(*in, *out, st_mtim);
2371 TS_CP(*in, *out, st_ctim);
2372 CP(*in, *out, st_size);
2373 CP(*in, *out, st_blocks);
2374 CP(*in, *out, st_blksize);
2375 CP(*in, *out, st_flags);
2376 CP(*in, *out, st_gen);
2377 TS_CP(*in, *out, st_birthtim);
2378 out->st_lspare = 0;
2379 bzero((char *)&out->st_birthtim + sizeof(out->st_birthtim),
2380 sizeof(*out) - offsetof(struct freebsd11_stat32,
2381 st_birthtim) - sizeof(out->st_birthtim));
2382 return (0);
2383 }
2384
2385 int
freebsd11_freebsd32_stat(struct thread * td,struct freebsd11_freebsd32_stat_args * uap)2386 freebsd11_freebsd32_stat(struct thread *td,
2387 struct freebsd11_freebsd32_stat_args *uap)
2388 {
2389 struct stat sb;
2390 struct freebsd11_stat32 sb32;
2391 int error;
2392
2393 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE,
2394 &sb, NULL);
2395 if (error != 0)
2396 return (error);
2397 error = freebsd11_cvtstat32(&sb, &sb32);
2398 if (error == 0)
2399 error = copyout(&sb32, uap->ub, sizeof (sb32));
2400 return (error);
2401 }
2402
2403 int
freebsd11_freebsd32_fstat(struct thread * td,struct freebsd11_freebsd32_fstat_args * uap)2404 freebsd11_freebsd32_fstat(struct thread *td,
2405 struct freebsd11_freebsd32_fstat_args *uap)
2406 {
2407 struct stat sb;
2408 struct freebsd11_stat32 sb32;
2409 int error;
2410
2411 error = kern_fstat(td, uap->fd, &sb);
2412 if (error != 0)
2413 return (error);
2414 error = freebsd11_cvtstat32(&sb, &sb32);
2415 if (error == 0)
2416 error = copyout(&sb32, uap->ub, sizeof (sb32));
2417 return (error);
2418 }
2419
2420 int
freebsd11_freebsd32_fstatat(struct thread * td,struct freebsd11_freebsd32_fstatat_args * uap)2421 freebsd11_freebsd32_fstatat(struct thread *td,
2422 struct freebsd11_freebsd32_fstatat_args *uap)
2423 {
2424 struct stat sb;
2425 struct freebsd11_stat32 sb32;
2426 int error;
2427
2428 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE,
2429 &sb, NULL);
2430 if (error != 0)
2431 return (error);
2432 error = freebsd11_cvtstat32(&sb, &sb32);
2433 if (error == 0)
2434 error = copyout(&sb32, uap->buf, sizeof (sb32));
2435 return (error);
2436 }
2437
2438 int
freebsd11_freebsd32_lstat(struct thread * td,struct freebsd11_freebsd32_lstat_args * uap)2439 freebsd11_freebsd32_lstat(struct thread *td,
2440 struct freebsd11_freebsd32_lstat_args *uap)
2441 {
2442 struct stat sb;
2443 struct freebsd11_stat32 sb32;
2444 int error;
2445
2446 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path,
2447 UIO_USERSPACE, &sb, NULL);
2448 if (error != 0)
2449 return (error);
2450 error = freebsd11_cvtstat32(&sb, &sb32);
2451 if (error == 0)
2452 error = copyout(&sb32, uap->ub, sizeof (sb32));
2453 return (error);
2454 }
2455
2456 int
freebsd11_freebsd32_fhstat(struct thread * td,struct freebsd11_freebsd32_fhstat_args * uap)2457 freebsd11_freebsd32_fhstat(struct thread *td,
2458 struct freebsd11_freebsd32_fhstat_args *uap)
2459 {
2460 struct stat sb;
2461 struct freebsd11_stat32 sb32;
2462 struct fhandle fh;
2463 int error;
2464
2465 error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t));
2466 if (error != 0)
2467 return (error);
2468 error = kern_fhstat(td, fh, &sb);
2469 if (error != 0)
2470 return (error);
2471 error = freebsd11_cvtstat32(&sb, &sb32);
2472 if (error == 0)
2473 error = copyout(&sb32, uap->sb, sizeof (sb32));
2474 return (error);
2475 }
2476 #endif
2477
2478 int
freebsd32___sysctl(struct thread * td,struct freebsd32___sysctl_args * uap)2479 freebsd32___sysctl(struct thread *td, struct freebsd32___sysctl_args *uap)
2480 {
2481 int error, name[CTL_MAXNAME];
2482 size_t j, oldlen;
2483 uint32_t tmp;
2484
2485 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2)
2486 return (EINVAL);
2487 error = copyin(uap->name, name, uap->namelen * sizeof(int));
2488 if (error)
2489 return (error);
2490 if (uap->oldlenp) {
2491 error = fueword32(uap->oldlenp, &tmp);
2492 oldlen = tmp;
2493 } else {
2494 oldlen = 0;
2495 }
2496 if (error != 0)
2497 return (EFAULT);
2498 error = userland_sysctl(td, name, uap->namelen,
2499 uap->old, &oldlen, 1,
2500 uap->new, uap->newlen, &j, SCTL_MASK32);
2501 if (error)
2502 return (error);
2503 if (uap->oldlenp)
2504 suword32(uap->oldlenp, j);
2505 return (0);
2506 }
2507
2508 int
freebsd32___sysctlbyname(struct thread * td,struct freebsd32___sysctlbyname_args * uap)2509 freebsd32___sysctlbyname(struct thread *td,
2510 struct freebsd32___sysctlbyname_args *uap)
2511 {
2512 size_t oldlen, rv;
2513 int error;
2514 uint32_t tmp;
2515
2516 if (uap->oldlenp != NULL) {
2517 error = fueword32(uap->oldlenp, &tmp);
2518 oldlen = tmp;
2519 } else {
2520 error = oldlen = 0;
2521 }
2522 if (error != 0)
2523 return (EFAULT);
2524 error = kern___sysctlbyname(td, uap->name, uap->namelen, uap->old,
2525 &oldlen, uap->new, uap->newlen, &rv, SCTL_MASK32, 1);
2526 if (error != 0)
2527 return (error);
2528 if (uap->oldlenp != NULL)
2529 error = suword32(uap->oldlenp, rv);
2530
2531 return (error);
2532 }
2533
2534 int
freebsd32_jail(struct thread * td,struct freebsd32_jail_args * uap)2535 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap)
2536 {
2537 uint32_t version;
2538 int error;
2539 struct jail j;
2540
2541 error = copyin(uap->jail, &version, sizeof(uint32_t));
2542 if (error)
2543 return (error);
2544
2545 switch (version) {
2546 case 0:
2547 {
2548 /* FreeBSD single IPv4 jails. */
2549 struct jail32_v0 j32_v0;
2550
2551 bzero(&j, sizeof(struct jail));
2552 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0));
2553 if (error)
2554 return (error);
2555 CP(j32_v0, j, version);
2556 PTRIN_CP(j32_v0, j, path);
2557 PTRIN_CP(j32_v0, j, hostname);
2558 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */
2559 break;
2560 }
2561
2562 case 1:
2563 /*
2564 * Version 1 was used by multi-IPv4 jail implementations
2565 * that never made it into the official kernel.
2566 */
2567 return (EINVAL);
2568
2569 case 2: /* JAIL_API_VERSION */
2570 {
2571 /* FreeBSD multi-IPv4/IPv6,noIP jails. */
2572 struct jail32 j32;
2573
2574 error = copyin(uap->jail, &j32, sizeof(struct jail32));
2575 if (error)
2576 return (error);
2577 CP(j32, j, version);
2578 PTRIN_CP(j32, j, path);
2579 PTRIN_CP(j32, j, hostname);
2580 PTRIN_CP(j32, j, jailname);
2581 CP(j32, j, ip4s);
2582 CP(j32, j, ip6s);
2583 PTRIN_CP(j32, j, ip4);
2584 PTRIN_CP(j32, j, ip6);
2585 break;
2586 }
2587
2588 default:
2589 /* Sci-Fi jails are not supported, sorry. */
2590 return (EINVAL);
2591 }
2592 return (kern_jail(td, &j));
2593 }
2594
2595 int
freebsd32_jail_set(struct thread * td,struct freebsd32_jail_set_args * uap)2596 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap)
2597 {
2598 struct uio *auio;
2599 int error;
2600
2601 /* Check that we have an even number of iovecs. */
2602 if (uap->iovcnt & 1)
2603 return (EINVAL);
2604
2605 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
2606 if (error)
2607 return (error);
2608 error = kern_jail_set(td, auio, uap->flags);
2609 free(auio, M_IOV);
2610 return (error);
2611 }
2612
2613 int
freebsd32_jail_get(struct thread * td,struct freebsd32_jail_get_args * uap)2614 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap)
2615 {
2616 struct iovec32 iov32;
2617 struct uio *auio;
2618 int error, i;
2619
2620 /* Check that we have an even number of iovecs. */
2621 if (uap->iovcnt & 1)
2622 return (EINVAL);
2623
2624 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
2625 if (error)
2626 return (error);
2627 error = kern_jail_get(td, auio, uap->flags);
2628 if (error == 0)
2629 for (i = 0; i < uap->iovcnt; i++) {
2630 PTROUT_CP(auio->uio_iov[i], iov32, iov_base);
2631 CP(auio->uio_iov[i], iov32, iov_len);
2632 error = copyout(&iov32, uap->iovp + i, sizeof(iov32));
2633 if (error != 0)
2634 break;
2635 }
2636 free(auio, M_IOV);
2637 return (error);
2638 }
2639
2640 int
freebsd32_sigaction(struct thread * td,struct freebsd32_sigaction_args * uap)2641 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap)
2642 {
2643 struct sigaction32 s32;
2644 struct sigaction sa, osa, *sap;
2645 int error;
2646
2647 if (uap->act) {
2648 error = copyin(uap->act, &s32, sizeof(s32));
2649 if (error)
2650 return (error);
2651 sa.sa_handler = PTRIN(s32.sa_u);
2652 CP(s32, sa, sa_flags);
2653 CP(s32, sa, sa_mask);
2654 sap = &sa;
2655 } else
2656 sap = NULL;
2657 error = kern_sigaction(td, uap->sig, sap, &osa, 0);
2658 if (error == 0 && uap->oact != NULL) {
2659 s32.sa_u = PTROUT(osa.sa_handler);
2660 CP(osa, s32, sa_flags);
2661 CP(osa, s32, sa_mask);
2662 error = copyout(&s32, uap->oact, sizeof(s32));
2663 }
2664 return (error);
2665 }
2666
2667 #ifdef COMPAT_FREEBSD4
2668 int
freebsd4_freebsd32_sigaction(struct thread * td,struct freebsd4_freebsd32_sigaction_args * uap)2669 freebsd4_freebsd32_sigaction(struct thread *td,
2670 struct freebsd4_freebsd32_sigaction_args *uap)
2671 {
2672 struct sigaction32 s32;
2673 struct sigaction sa, osa, *sap;
2674 int error;
2675
2676 if (uap->act) {
2677 error = copyin(uap->act, &s32, sizeof(s32));
2678 if (error)
2679 return (error);
2680 sa.sa_handler = PTRIN(s32.sa_u);
2681 CP(s32, sa, sa_flags);
2682 CP(s32, sa, sa_mask);
2683 sap = &sa;
2684 } else
2685 sap = NULL;
2686 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4);
2687 if (error == 0 && uap->oact != NULL) {
2688 s32.sa_u = PTROUT(osa.sa_handler);
2689 CP(osa, s32, sa_flags);
2690 CP(osa, s32, sa_mask);
2691 error = copyout(&s32, uap->oact, sizeof(s32));
2692 }
2693 return (error);
2694 }
2695 #endif
2696
2697 #ifdef COMPAT_43
2698 struct osigaction32 {
2699 u_int32_t sa_u;
2700 osigset_t sa_mask;
2701 int sa_flags;
2702 };
2703
2704 #define ONSIG 32
2705
2706 int
ofreebsd32_sigaction(struct thread * td,struct ofreebsd32_sigaction_args * uap)2707 ofreebsd32_sigaction(struct thread *td,
2708 struct ofreebsd32_sigaction_args *uap)
2709 {
2710 struct osigaction32 s32;
2711 struct sigaction sa, osa, *sap;
2712 int error;
2713
2714 if (uap->signum <= 0 || uap->signum >= ONSIG)
2715 return (EINVAL);
2716
2717 if (uap->nsa) {
2718 error = copyin(uap->nsa, &s32, sizeof(s32));
2719 if (error)
2720 return (error);
2721 sa.sa_handler = PTRIN(s32.sa_u);
2722 CP(s32, sa, sa_flags);
2723 OSIG2SIG(s32.sa_mask, sa.sa_mask);
2724 sap = &sa;
2725 } else
2726 sap = NULL;
2727 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET);
2728 if (error == 0 && uap->osa != NULL) {
2729 s32.sa_u = PTROUT(osa.sa_handler);
2730 CP(osa, s32, sa_flags);
2731 SIG2OSIG(osa.sa_mask, s32.sa_mask);
2732 error = copyout(&s32, uap->osa, sizeof(s32));
2733 }
2734 return (error);
2735 }
2736
2737 int
ofreebsd32_sigprocmask(struct thread * td,struct ofreebsd32_sigprocmask_args * uap)2738 ofreebsd32_sigprocmask(struct thread *td,
2739 struct ofreebsd32_sigprocmask_args *uap)
2740 {
2741 sigset_t set, oset;
2742 int error;
2743
2744 OSIG2SIG(uap->mask, set);
2745 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD);
2746 SIG2OSIG(oset, td->td_retval[0]);
2747 return (error);
2748 }
2749
2750 int
ofreebsd32_sigpending(struct thread * td,struct ofreebsd32_sigpending_args * uap)2751 ofreebsd32_sigpending(struct thread *td,
2752 struct ofreebsd32_sigpending_args *uap)
2753 {
2754 struct proc *p = td->td_proc;
2755 sigset_t siglist;
2756
2757 PROC_LOCK(p);
2758 siglist = p->p_siglist;
2759 SIGSETOR(siglist, td->td_siglist);
2760 PROC_UNLOCK(p);
2761 SIG2OSIG(siglist, td->td_retval[0]);
2762 return (0);
2763 }
2764
2765 struct sigvec32 {
2766 u_int32_t sv_handler;
2767 int sv_mask;
2768 int sv_flags;
2769 };
2770
2771 int
ofreebsd32_sigvec(struct thread * td,struct ofreebsd32_sigvec_args * uap)2772 ofreebsd32_sigvec(struct thread *td,
2773 struct ofreebsd32_sigvec_args *uap)
2774 {
2775 struct sigvec32 vec;
2776 struct sigaction sa, osa, *sap;
2777 int error;
2778
2779 if (uap->signum <= 0 || uap->signum >= ONSIG)
2780 return (EINVAL);
2781
2782 if (uap->nsv) {
2783 error = copyin(uap->nsv, &vec, sizeof(vec));
2784 if (error)
2785 return (error);
2786 sa.sa_handler = PTRIN(vec.sv_handler);
2787 OSIG2SIG(vec.sv_mask, sa.sa_mask);
2788 sa.sa_flags = vec.sv_flags;
2789 sa.sa_flags ^= SA_RESTART;
2790 sap = &sa;
2791 } else
2792 sap = NULL;
2793 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET);
2794 if (error == 0 && uap->osv != NULL) {
2795 vec.sv_handler = PTROUT(osa.sa_handler);
2796 SIG2OSIG(osa.sa_mask, vec.sv_mask);
2797 vec.sv_flags = osa.sa_flags;
2798 vec.sv_flags &= ~SA_NOCLDWAIT;
2799 vec.sv_flags ^= SA_RESTART;
2800 error = copyout(&vec, uap->osv, sizeof(vec));
2801 }
2802 return (error);
2803 }
2804
2805 int
ofreebsd32_sigblock(struct thread * td,struct ofreebsd32_sigblock_args * uap)2806 ofreebsd32_sigblock(struct thread *td,
2807 struct ofreebsd32_sigblock_args *uap)
2808 {
2809 sigset_t set, oset;
2810
2811 OSIG2SIG(uap->mask, set);
2812 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0);
2813 SIG2OSIG(oset, td->td_retval[0]);
2814 return (0);
2815 }
2816
2817 int
ofreebsd32_sigsetmask(struct thread * td,struct ofreebsd32_sigsetmask_args * uap)2818 ofreebsd32_sigsetmask(struct thread *td,
2819 struct ofreebsd32_sigsetmask_args *uap)
2820 {
2821 sigset_t set, oset;
2822
2823 OSIG2SIG(uap->mask, set);
2824 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0);
2825 SIG2OSIG(oset, td->td_retval[0]);
2826 return (0);
2827 }
2828
2829 int
ofreebsd32_sigsuspend(struct thread * td,struct ofreebsd32_sigsuspend_args * uap)2830 ofreebsd32_sigsuspend(struct thread *td,
2831 struct ofreebsd32_sigsuspend_args *uap)
2832 {
2833 sigset_t mask;
2834
2835 OSIG2SIG(uap->mask, mask);
2836 return (kern_sigsuspend(td, mask));
2837 }
2838
2839 struct sigstack32 {
2840 u_int32_t ss_sp;
2841 int ss_onstack;
2842 };
2843
2844 int
ofreebsd32_sigstack(struct thread * td,struct ofreebsd32_sigstack_args * uap)2845 ofreebsd32_sigstack(struct thread *td,
2846 struct ofreebsd32_sigstack_args *uap)
2847 {
2848 struct sigstack32 s32;
2849 struct sigstack nss, oss;
2850 int error = 0, unss;
2851
2852 if (uap->nss != NULL) {
2853 error = copyin(uap->nss, &s32, sizeof(s32));
2854 if (error)
2855 return (error);
2856 nss.ss_sp = PTRIN(s32.ss_sp);
2857 CP(s32, nss, ss_onstack);
2858 unss = 1;
2859 } else {
2860 unss = 0;
2861 }
2862 oss.ss_sp = td->td_sigstk.ss_sp;
2863 oss.ss_onstack = sigonstack(cpu_getstack(td));
2864 if (unss) {
2865 td->td_sigstk.ss_sp = nss.ss_sp;
2866 td->td_sigstk.ss_size = 0;
2867 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK);
2868 td->td_pflags |= TDP_ALTSTACK;
2869 }
2870 if (uap->oss != NULL) {
2871 s32.ss_sp = PTROUT(oss.ss_sp);
2872 CP(oss, s32, ss_onstack);
2873 error = copyout(&s32, uap->oss, sizeof(s32));
2874 }
2875 return (error);
2876 }
2877 #endif
2878
2879 int
freebsd32_nanosleep(struct thread * td,struct freebsd32_nanosleep_args * uap)2880 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap)
2881 {
2882
2883 return (freebsd32_user_clock_nanosleep(td, CLOCK_REALTIME,
2884 TIMER_RELTIME, uap->rqtp, uap->rmtp));
2885 }
2886
2887 int
freebsd32_clock_nanosleep(struct thread * td,struct freebsd32_clock_nanosleep_args * uap)2888 freebsd32_clock_nanosleep(struct thread *td,
2889 struct freebsd32_clock_nanosleep_args *uap)
2890 {
2891 int error;
2892
2893 error = freebsd32_user_clock_nanosleep(td, uap->clock_id, uap->flags,
2894 uap->rqtp, uap->rmtp);
2895 return (kern_posix_error(td, error));
2896 }
2897
2898 static int
freebsd32_user_clock_nanosleep(struct thread * td,clockid_t clock_id,int flags,const struct timespec32 * ua_rqtp,struct timespec32 * ua_rmtp)2899 freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id,
2900 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp)
2901 {
2902 struct timespec32 rmt32, rqt32;
2903 struct timespec rmt, rqt;
2904 int error, error2;
2905
2906 error = copyin(ua_rqtp, &rqt32, sizeof(rqt32));
2907 if (error)
2908 return (error);
2909
2910 CP(rqt32, rqt, tv_sec);
2911 CP(rqt32, rqt, tv_nsec);
2912
2913 error = kern_clock_nanosleep(td, clock_id, flags, &rqt, &rmt);
2914 if (error == EINTR && ua_rmtp != NULL && (flags & TIMER_ABSTIME) == 0) {
2915 CP(rmt, rmt32, tv_sec);
2916 CP(rmt, rmt32, tv_nsec);
2917
2918 error2 = copyout(&rmt32, ua_rmtp, sizeof(rmt32));
2919 if (error2 != 0)
2920 error = error2;
2921 }
2922 return (error);
2923 }
2924
2925 int
freebsd32_clock_gettime(struct thread * td,struct freebsd32_clock_gettime_args * uap)2926 freebsd32_clock_gettime(struct thread *td,
2927 struct freebsd32_clock_gettime_args *uap)
2928 {
2929 struct timespec ats;
2930 struct timespec32 ats32;
2931 int error;
2932
2933 error = kern_clock_gettime(td, uap->clock_id, &ats);
2934 if (error == 0) {
2935 CP(ats, ats32, tv_sec);
2936 CP(ats, ats32, tv_nsec);
2937 error = copyout(&ats32, uap->tp, sizeof(ats32));
2938 }
2939 return (error);
2940 }
2941
2942 int
freebsd32_clock_settime(struct thread * td,struct freebsd32_clock_settime_args * uap)2943 freebsd32_clock_settime(struct thread *td,
2944 struct freebsd32_clock_settime_args *uap)
2945 {
2946 struct timespec ats;
2947 struct timespec32 ats32;
2948 int error;
2949
2950 error = copyin(uap->tp, &ats32, sizeof(ats32));
2951 if (error)
2952 return (error);
2953 CP(ats32, ats, tv_sec);
2954 CP(ats32, ats, tv_nsec);
2955
2956 return (kern_clock_settime(td, uap->clock_id, &ats));
2957 }
2958
2959 int
freebsd32_clock_getres(struct thread * td,struct freebsd32_clock_getres_args * uap)2960 freebsd32_clock_getres(struct thread *td,
2961 struct freebsd32_clock_getres_args *uap)
2962 {
2963 struct timespec ts;
2964 struct timespec32 ts32;
2965 int error;
2966
2967 if (uap->tp == NULL)
2968 return (0);
2969 error = kern_clock_getres(td, uap->clock_id, &ts);
2970 if (error == 0) {
2971 CP(ts, ts32, tv_sec);
2972 CP(ts, ts32, tv_nsec);
2973 error = copyout(&ts32, uap->tp, sizeof(ts32));
2974 }
2975 return (error);
2976 }
2977
freebsd32_ktimer_create(struct thread * td,struct freebsd32_ktimer_create_args * uap)2978 int freebsd32_ktimer_create(struct thread *td,
2979 struct freebsd32_ktimer_create_args *uap)
2980 {
2981 struct sigevent32 ev32;
2982 struct sigevent ev, *evp;
2983 int error, id;
2984
2985 if (uap->evp == NULL) {
2986 evp = NULL;
2987 } else {
2988 evp = &ev;
2989 error = copyin(uap->evp, &ev32, sizeof(ev32));
2990 if (error != 0)
2991 return (error);
2992 error = convert_sigevent32(&ev32, &ev);
2993 if (error != 0)
2994 return (error);
2995 }
2996 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1);
2997 if (error == 0) {
2998 error = copyout(&id, uap->timerid, sizeof(int));
2999 if (error != 0)
3000 kern_ktimer_delete(td, id);
3001 }
3002 return (error);
3003 }
3004
3005 int
freebsd32_ktimer_settime(struct thread * td,struct freebsd32_ktimer_settime_args * uap)3006 freebsd32_ktimer_settime(struct thread *td,
3007 struct freebsd32_ktimer_settime_args *uap)
3008 {
3009 struct itimerspec32 val32, oval32;
3010 struct itimerspec val, oval, *ovalp;
3011 int error;
3012
3013 error = copyin(uap->value, &val32, sizeof(val32));
3014 if (error != 0)
3015 return (error);
3016 ITS_CP(val32, val);
3017 ovalp = uap->ovalue != NULL ? &oval : NULL;
3018 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp);
3019 if (error == 0 && uap->ovalue != NULL) {
3020 ITS_CP(oval, oval32);
3021 error = copyout(&oval32, uap->ovalue, sizeof(oval32));
3022 }
3023 return (error);
3024 }
3025
3026 int
freebsd32_ktimer_gettime(struct thread * td,struct freebsd32_ktimer_gettime_args * uap)3027 freebsd32_ktimer_gettime(struct thread *td,
3028 struct freebsd32_ktimer_gettime_args *uap)
3029 {
3030 struct itimerspec32 val32;
3031 struct itimerspec val;
3032 int error;
3033
3034 error = kern_ktimer_gettime(td, uap->timerid, &val);
3035 if (error == 0) {
3036 ITS_CP(val, val32);
3037 error = copyout(&val32, uap->value, sizeof(val32));
3038 }
3039 return (error);
3040 }
3041
3042 int
freebsd32_clock_getcpuclockid2(struct thread * td,struct freebsd32_clock_getcpuclockid2_args * uap)3043 freebsd32_clock_getcpuclockid2(struct thread *td,
3044 struct freebsd32_clock_getcpuclockid2_args *uap)
3045 {
3046 clockid_t clk_id;
3047 int error;
3048
3049 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id),
3050 uap->which, &clk_id);
3051 if (error == 0)
3052 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t));
3053 return (error);
3054 }
3055
3056 int
freebsd32_thr_new(struct thread * td,struct freebsd32_thr_new_args * uap)3057 freebsd32_thr_new(struct thread *td,
3058 struct freebsd32_thr_new_args *uap)
3059 {
3060 struct thr_param32 param32;
3061 struct thr_param param;
3062 int error;
3063
3064 if (uap->param_size < 0 ||
3065 uap->param_size > sizeof(struct thr_param32))
3066 return (EINVAL);
3067 bzero(¶m, sizeof(struct thr_param));
3068 bzero(¶m32, sizeof(struct thr_param32));
3069 error = copyin(uap->param, ¶m32, uap->param_size);
3070 if (error != 0)
3071 return (error);
3072 param.start_func = PTRIN(param32.start_func);
3073 param.arg = PTRIN(param32.arg);
3074 param.stack_base = PTRIN(param32.stack_base);
3075 param.stack_size = param32.stack_size;
3076 param.tls_base = PTRIN(param32.tls_base);
3077 param.tls_size = param32.tls_size;
3078 param.child_tid = PTRIN(param32.child_tid);
3079 param.parent_tid = PTRIN(param32.parent_tid);
3080 param.flags = param32.flags;
3081 param.rtp = PTRIN(param32.rtp);
3082 param.spare[0] = PTRIN(param32.spare[0]);
3083 param.spare[1] = PTRIN(param32.spare[1]);
3084 param.spare[2] = PTRIN(param32.spare[2]);
3085
3086 return (kern_thr_new(td, ¶m));
3087 }
3088
3089 int
freebsd32_thr_suspend(struct thread * td,struct freebsd32_thr_suspend_args * uap)3090 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap)
3091 {
3092 struct timespec32 ts32;
3093 struct timespec ts, *tsp;
3094 int error;
3095
3096 error = 0;
3097 tsp = NULL;
3098 if (uap->timeout != NULL) {
3099 error = copyin((const void *)uap->timeout, (void *)&ts32,
3100 sizeof(struct timespec32));
3101 if (error != 0)
3102 return (error);
3103 ts.tv_sec = ts32.tv_sec;
3104 ts.tv_nsec = ts32.tv_nsec;
3105 tsp = &ts;
3106 }
3107 return (kern_thr_suspend(td, tsp));
3108 }
3109
3110 void
siginfo_to_siginfo32(const siginfo_t * src,struct siginfo32 * dst)3111 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst)
3112 {
3113 bzero(dst, sizeof(*dst));
3114 dst->si_signo = src->si_signo;
3115 dst->si_errno = src->si_errno;
3116 dst->si_code = src->si_code;
3117 dst->si_pid = src->si_pid;
3118 dst->si_uid = src->si_uid;
3119 dst->si_status = src->si_status;
3120 dst->si_addr = (uintptr_t)src->si_addr;
3121 dst->si_value.sival_int = src->si_value.sival_int;
3122 dst->si_timerid = src->si_timerid;
3123 dst->si_overrun = src->si_overrun;
3124 }
3125
3126 #ifndef _FREEBSD32_SYSPROTO_H_
3127 struct freebsd32_sigqueue_args {
3128 pid_t pid;
3129 int signum;
3130 /* union sigval32 */ int value;
3131 };
3132 #endif
3133 int
freebsd32_sigqueue(struct thread * td,struct freebsd32_sigqueue_args * uap)3134 freebsd32_sigqueue(struct thread *td, struct freebsd32_sigqueue_args *uap)
3135 {
3136 union sigval sv;
3137
3138 /*
3139 * On 32-bit ABIs, sival_int and sival_ptr are the same.
3140 * On 64-bit little-endian ABIs, the low bits are the same.
3141 * In 64-bit big-endian ABIs, sival_int overlaps with
3142 * sival_ptr's HIGH bits. We choose to support sival_int
3143 * rather than sival_ptr in this case as it seems to be
3144 * more common.
3145 */
3146 bzero(&sv, sizeof(sv));
3147 sv.sival_int = uap->value;
3148
3149 return (kern_sigqueue(td, uap->pid, uap->signum, &sv));
3150 }
3151
3152 int
freebsd32_sigtimedwait(struct thread * td,struct freebsd32_sigtimedwait_args * uap)3153 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap)
3154 {
3155 struct timespec32 ts32;
3156 struct timespec ts;
3157 struct timespec *timeout;
3158 sigset_t set;
3159 ksiginfo_t ksi;
3160 struct siginfo32 si32;
3161 int error;
3162
3163 if (uap->timeout) {
3164 error = copyin(uap->timeout, &ts32, sizeof(ts32));
3165 if (error)
3166 return (error);
3167 ts.tv_sec = ts32.tv_sec;
3168 ts.tv_nsec = ts32.tv_nsec;
3169 timeout = &ts;
3170 } else
3171 timeout = NULL;
3172
3173 error = copyin(uap->set, &set, sizeof(set));
3174 if (error)
3175 return (error);
3176
3177 error = kern_sigtimedwait(td, set, &ksi, timeout);
3178 if (error)
3179 return (error);
3180
3181 if (uap->info) {
3182 siginfo_to_siginfo32(&ksi.ksi_info, &si32);
3183 error = copyout(&si32, uap->info, sizeof(struct siginfo32));
3184 }
3185
3186 if (error == 0)
3187 td->td_retval[0] = ksi.ksi_signo;
3188 return (error);
3189 }
3190
3191 /*
3192 * MPSAFE
3193 */
3194 int
freebsd32_sigwaitinfo(struct thread * td,struct freebsd32_sigwaitinfo_args * uap)3195 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap)
3196 {
3197 ksiginfo_t ksi;
3198 struct siginfo32 si32;
3199 sigset_t set;
3200 int error;
3201
3202 error = copyin(uap->set, &set, sizeof(set));
3203 if (error)
3204 return (error);
3205
3206 error = kern_sigtimedwait(td, set, &ksi, NULL);
3207 if (error)
3208 return (error);
3209
3210 if (uap->info) {
3211 siginfo_to_siginfo32(&ksi.ksi_info, &si32);
3212 error = copyout(&si32, uap->info, sizeof(struct siginfo32));
3213 }
3214 if (error == 0)
3215 td->td_retval[0] = ksi.ksi_signo;
3216 return (error);
3217 }
3218
3219 int
freebsd32_cpuset_setid(struct thread * td,struct freebsd32_cpuset_setid_args * uap)3220 freebsd32_cpuset_setid(struct thread *td,
3221 struct freebsd32_cpuset_setid_args *uap)
3222 {
3223
3224 return (kern_cpuset_setid(td, uap->which,
3225 PAIR32TO64(id_t, uap->id), uap->setid));
3226 }
3227
3228 int
freebsd32_cpuset_getid(struct thread * td,struct freebsd32_cpuset_getid_args * uap)3229 freebsd32_cpuset_getid(struct thread *td,
3230 struct freebsd32_cpuset_getid_args *uap)
3231 {
3232
3233 return (kern_cpuset_getid(td, uap->level, uap->which,
3234 PAIR32TO64(id_t, uap->id), uap->setid));
3235 }
3236
3237 int
freebsd32_cpuset_getaffinity(struct thread * td,struct freebsd32_cpuset_getaffinity_args * uap)3238 freebsd32_cpuset_getaffinity(struct thread *td,
3239 struct freebsd32_cpuset_getaffinity_args *uap)
3240 {
3241
3242 return (kern_cpuset_getaffinity(td, uap->level, uap->which,
3243 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask));
3244 }
3245
3246 int
freebsd32_cpuset_setaffinity(struct thread * td,struct freebsd32_cpuset_setaffinity_args * uap)3247 freebsd32_cpuset_setaffinity(struct thread *td,
3248 struct freebsd32_cpuset_setaffinity_args *uap)
3249 {
3250
3251 return (kern_cpuset_setaffinity(td, uap->level, uap->which,
3252 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask));
3253 }
3254
3255 int
freebsd32_cpuset_getdomain(struct thread * td,struct freebsd32_cpuset_getdomain_args * uap)3256 freebsd32_cpuset_getdomain(struct thread *td,
3257 struct freebsd32_cpuset_getdomain_args *uap)
3258 {
3259
3260 return (kern_cpuset_getdomain(td, uap->level, uap->which,
3261 PAIR32TO64(id_t,uap->id), uap->domainsetsize, uap->mask, uap->policy));
3262 }
3263
3264 int
freebsd32_cpuset_setdomain(struct thread * td,struct freebsd32_cpuset_setdomain_args * uap)3265 freebsd32_cpuset_setdomain(struct thread *td,
3266 struct freebsd32_cpuset_setdomain_args *uap)
3267 {
3268
3269 return (kern_cpuset_setdomain(td, uap->level, uap->which,
3270 PAIR32TO64(id_t,uap->id), uap->domainsetsize, uap->mask, uap->policy));
3271 }
3272
3273 int
freebsd32_nmount(struct thread * td,struct freebsd32_nmount_args * uap)3274 freebsd32_nmount(struct thread *td,
3275 struct freebsd32_nmount_args /* {
3276 struct iovec *iovp;
3277 unsigned int iovcnt;
3278 int flags;
3279 } */ *uap)
3280 {
3281 struct uio *auio;
3282 uint64_t flags;
3283 int error;
3284
3285 /*
3286 * Mount flags are now 64-bits. On 32-bit archtectures only
3287 * 32-bits are passed in, but from here on everything handles
3288 * 64-bit flags correctly.
3289 */
3290 flags = uap->flags;
3291
3292 AUDIT_ARG_FFLAGS(flags);
3293
3294 /*
3295 * Filter out MNT_ROOTFS. We do not want clients of nmount() in
3296 * userspace to set this flag, but we must filter it out if we want
3297 * MNT_UPDATE on the root file system to work.
3298 * MNT_ROOTFS should only be set by the kernel when mounting its
3299 * root file system.
3300 */
3301 flags &= ~MNT_ROOTFS;
3302
3303 /*
3304 * check that we have an even number of iovec's
3305 * and that we have at least two options.
3306 */
3307 if ((uap->iovcnt & 1) || (uap->iovcnt < 4))
3308 return (EINVAL);
3309
3310 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
3311 if (error)
3312 return (error);
3313 error = vfs_donmount(td, flags, auio);
3314
3315 free(auio, M_IOV);
3316 return error;
3317 }
3318
3319 #if 0
3320 int
3321 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap)
3322 {
3323 struct yyy32 *p32, s32;
3324 struct yyy *p = NULL, s;
3325 struct xxx_arg ap;
3326 int error;
3327
3328 if (uap->zzz) {
3329 error = copyin(uap->zzz, &s32, sizeof(s32));
3330 if (error)
3331 return (error);
3332 /* translate in */
3333 p = &s;
3334 }
3335 error = kern_xxx(td, p);
3336 if (error)
3337 return (error);
3338 if (uap->zzz) {
3339 /* translate out */
3340 error = copyout(&s32, p32, sizeof(s32));
3341 }
3342 return (error);
3343 }
3344 #endif
3345
3346 int
syscall32_module_handler(struct module * mod,int what,void * arg)3347 syscall32_module_handler(struct module *mod, int what, void *arg)
3348 {
3349
3350 return (kern_syscall_module_handler(freebsd32_sysent, mod, what, arg));
3351 }
3352
3353 int
syscall32_helper_register(struct syscall_helper_data * sd,int flags)3354 syscall32_helper_register(struct syscall_helper_data *sd, int flags)
3355 {
3356
3357 return (kern_syscall_helper_register(freebsd32_sysent, sd, flags));
3358 }
3359
3360 int
syscall32_helper_unregister(struct syscall_helper_data * sd)3361 syscall32_helper_unregister(struct syscall_helper_data *sd)
3362 {
3363
3364 return (kern_syscall_helper_unregister(freebsd32_sysent, sd));
3365 }
3366
3367 int
freebsd32_copyout_strings(struct image_params * imgp,uintptr_t * stack_base)3368 freebsd32_copyout_strings(struct image_params *imgp, uintptr_t *stack_base)
3369 {
3370 struct sysentvec *sysent;
3371 int argc, envc, i;
3372 u_int32_t *vectp;
3373 char *stringp;
3374 uintptr_t destp, ustringp;
3375 struct freebsd32_ps_strings *arginfo;
3376 char canary[sizeof(long) * 8];
3377 int32_t pagesizes32[MAXPAGESIZES];
3378 size_t execpath_len;
3379 int error, szsigcode;
3380
3381 sysent = imgp->sysent;
3382
3383 arginfo = (struct freebsd32_ps_strings *)PROC_PS_STRINGS(imgp->proc);
3384 imgp->ps_strings = arginfo;
3385 destp = (uintptr_t)arginfo;
3386
3387 /*
3388 * Install sigcode.
3389 */
3390 if (sysent->sv_sigcode_base == 0) {
3391 szsigcode = *sysent->sv_szsigcode;
3392 destp -= szsigcode;
3393 destp = rounddown2(destp, sizeof(uint32_t));
3394 error = copyout(sysent->sv_sigcode, (void *)destp,
3395 szsigcode);
3396 if (error != 0)
3397 return (error);
3398 }
3399
3400 /*
3401 * Copy the image path for the rtld.
3402 */
3403 if (imgp->execpath != NULL && imgp->auxargs != NULL) {
3404 execpath_len = strlen(imgp->execpath) + 1;
3405 destp -= execpath_len;
3406 imgp->execpathp = (void *)destp;
3407 error = copyout(imgp->execpath, imgp->execpathp, execpath_len);
3408 if (error != 0)
3409 return (error);
3410 }
3411
3412 /*
3413 * Prepare the canary for SSP.
3414 */
3415 arc4rand(canary, sizeof(canary), 0);
3416 destp -= sizeof(canary);
3417 imgp->canary = (void *)destp;
3418 error = copyout(canary, imgp->canary, sizeof(canary));
3419 if (error != 0)
3420 return (error);
3421 imgp->canarylen = sizeof(canary);
3422
3423 /*
3424 * Prepare the pagesizes array.
3425 */
3426 for (i = 0; i < MAXPAGESIZES; i++)
3427 pagesizes32[i] = (uint32_t)pagesizes[i];
3428 destp -= sizeof(pagesizes32);
3429 destp = rounddown2(destp, sizeof(uint32_t));
3430 imgp->pagesizes = (void *)destp;
3431 error = copyout(pagesizes32, imgp->pagesizes, sizeof(pagesizes32));
3432 if (error != 0)
3433 return (error);
3434 imgp->pagesizeslen = sizeof(pagesizes32);
3435
3436 /*
3437 * Allocate room for the argument and environment strings.
3438 */
3439 destp -= ARG_MAX - imgp->args->stringspace;
3440 destp = rounddown2(destp, sizeof(uint32_t));
3441 ustringp = destp;
3442
3443 if (imgp->auxargs) {
3444 /*
3445 * Allocate room on the stack for the ELF auxargs
3446 * array. It has up to AT_COUNT entries.
3447 */
3448 destp -= AT_COUNT * sizeof(Elf32_Auxinfo);
3449 destp = rounddown2(destp, sizeof(uint32_t));
3450 }
3451
3452 vectp = (uint32_t *)destp;
3453
3454 /*
3455 * Allocate room for the argv[] and env vectors including the
3456 * terminating NULL pointers.
3457 */
3458 vectp -= imgp->args->argc + 1 + imgp->args->envc + 1;
3459
3460 /*
3461 * vectp also becomes our initial stack base
3462 */
3463 *stack_base = (uintptr_t)vectp;
3464
3465 stringp = imgp->args->begin_argv;
3466 argc = imgp->args->argc;
3467 envc = imgp->args->envc;
3468 /*
3469 * Copy out strings - arguments and environment.
3470 */
3471 error = copyout(stringp, (void *)ustringp,
3472 ARG_MAX - imgp->args->stringspace);
3473 if (error != 0)
3474 return (error);
3475
3476 /*
3477 * Fill in "ps_strings" struct for ps, w, etc.
3478 */
3479 imgp->argv = vectp;
3480 if (suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp) != 0 ||
3481 suword32(&arginfo->ps_nargvstr, argc) != 0)
3482 return (EFAULT);
3483
3484 /*
3485 * Fill in argument portion of vector table.
3486 */
3487 for (; argc > 0; --argc) {
3488 if (suword32(vectp++, ustringp) != 0)
3489 return (EFAULT);
3490 while (*stringp++ != 0)
3491 ustringp++;
3492 ustringp++;
3493 }
3494
3495 /* a null vector table pointer separates the argp's from the envp's */
3496 if (suword32(vectp++, 0) != 0)
3497 return (EFAULT);
3498
3499 imgp->envv = vectp;
3500 if (suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp) != 0 ||
3501 suword32(&arginfo->ps_nenvstr, envc) != 0)
3502 return (EFAULT);
3503
3504 /*
3505 * Fill in environment portion of vector table.
3506 */
3507 for (; envc > 0; --envc) {
3508 if (suword32(vectp++, ustringp) != 0)
3509 return (EFAULT);
3510 while (*stringp++ != 0)
3511 ustringp++;
3512 ustringp++;
3513 }
3514
3515 /* end of vector table is a null pointer */
3516 if (suword32(vectp, 0) != 0)
3517 return (EFAULT);
3518
3519 if (imgp->auxargs) {
3520 vectp++;
3521 error = imgp->sysent->sv_copyout_auxargs(imgp,
3522 (uintptr_t)vectp);
3523 if (error != 0)
3524 return (error);
3525 }
3526
3527 return (0);
3528 }
3529
3530 int
freebsd32_kldstat(struct thread * td,struct freebsd32_kldstat_args * uap)3531 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap)
3532 {
3533 struct kld_file_stat *stat;
3534 struct kld32_file_stat *stat32;
3535 int error, version;
3536
3537 if ((error = copyin(&uap->stat->version, &version, sizeof(version)))
3538 != 0)
3539 return (error);
3540 if (version != sizeof(struct kld32_file_stat_1) &&
3541 version != sizeof(struct kld32_file_stat))
3542 return (EINVAL);
3543
3544 stat = malloc(sizeof(*stat), M_TEMP, M_WAITOK | M_ZERO);
3545 stat32 = malloc(sizeof(*stat32), M_TEMP, M_WAITOK | M_ZERO);
3546 error = kern_kldstat(td, uap->fileid, stat);
3547 if (error == 0) {
3548 bcopy(&stat->name[0], &stat32->name[0], sizeof(stat->name));
3549 CP(*stat, *stat32, refs);
3550 CP(*stat, *stat32, id);
3551 PTROUT_CP(*stat, *stat32, address);
3552 CP(*stat, *stat32, size);
3553 bcopy(&stat->pathname[0], &stat32->pathname[0],
3554 sizeof(stat->pathname));
3555 stat32->version = version;
3556 error = copyout(stat32, uap->stat, version);
3557 }
3558 free(stat, M_TEMP);
3559 free(stat32, M_TEMP);
3560 return (error);
3561 }
3562
3563 int
freebsd32_posix_fallocate(struct thread * td,struct freebsd32_posix_fallocate_args * uap)3564 freebsd32_posix_fallocate(struct thread *td,
3565 struct freebsd32_posix_fallocate_args *uap)
3566 {
3567 int error;
3568
3569 error = kern_posix_fallocate(td, uap->fd,
3570 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len));
3571 return (kern_posix_error(td, error));
3572 }
3573
3574 int
freebsd32_posix_fadvise(struct thread * td,struct freebsd32_posix_fadvise_args * uap)3575 freebsd32_posix_fadvise(struct thread *td,
3576 struct freebsd32_posix_fadvise_args *uap)
3577 {
3578 int error;
3579
3580 error = kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset),
3581 PAIR32TO64(off_t, uap->len), uap->advice);
3582 return (kern_posix_error(td, error));
3583 }
3584
3585 int
convert_sigevent32(struct sigevent32 * sig32,struct sigevent * sig)3586 convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig)
3587 {
3588
3589 CP(*sig32, *sig, sigev_notify);
3590 switch (sig->sigev_notify) {
3591 case SIGEV_NONE:
3592 break;
3593 case SIGEV_THREAD_ID:
3594 CP(*sig32, *sig, sigev_notify_thread_id);
3595 /* FALLTHROUGH */
3596 case SIGEV_SIGNAL:
3597 CP(*sig32, *sig, sigev_signo);
3598 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr);
3599 break;
3600 case SIGEV_KEVENT:
3601 CP(*sig32, *sig, sigev_notify_kqueue);
3602 CP(*sig32, *sig, sigev_notify_kevent_flags);
3603 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr);
3604 break;
3605 default:
3606 return (EINVAL);
3607 }
3608 return (0);
3609 }
3610
3611 int
freebsd32_procctl(struct thread * td,struct freebsd32_procctl_args * uap)3612 freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap)
3613 {
3614 void *data;
3615 union {
3616 struct procctl_reaper_status rs;
3617 struct procctl_reaper_pids rp;
3618 struct procctl_reaper_kill rk;
3619 } x;
3620 union {
3621 struct procctl_reaper_pids32 rp;
3622 } x32;
3623 int error, error1, flags, signum;
3624
3625 if (uap->com >= PROC_PROCCTL_MD_MIN)
3626 return (cpu_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id),
3627 uap->com, PTRIN(uap->data)));
3628
3629 switch (uap->com) {
3630 case PROC_ASLR_CTL:
3631 case PROC_PROTMAX_CTL:
3632 case PROC_SPROTECT:
3633 case PROC_STACKGAP_CTL:
3634 case PROC_TRACE_CTL:
3635 case PROC_TRAPCAP_CTL:
3636 case PROC_NO_NEW_PRIVS_CTL:
3637 case PROC_WXMAP_CTL:
3638 error = copyin(PTRIN(uap->data), &flags, sizeof(flags));
3639 if (error != 0)
3640 return (error);
3641 data = &flags;
3642 break;
3643 case PROC_REAP_ACQUIRE:
3644 case PROC_REAP_RELEASE:
3645 if (uap->data != NULL)
3646 return (EINVAL);
3647 data = NULL;
3648 break;
3649 case PROC_REAP_STATUS:
3650 data = &x.rs;
3651 break;
3652 case PROC_REAP_GETPIDS:
3653 error = copyin(uap->data, &x32.rp, sizeof(x32.rp));
3654 if (error != 0)
3655 return (error);
3656 CP(x32.rp, x.rp, rp_count);
3657 PTRIN_CP(x32.rp, x.rp, rp_pids);
3658 data = &x.rp;
3659 break;
3660 case PROC_REAP_KILL:
3661 error = copyin(uap->data, &x.rk, sizeof(x.rk));
3662 if (error != 0)
3663 return (error);
3664 data = &x.rk;
3665 break;
3666 case PROC_ASLR_STATUS:
3667 case PROC_PROTMAX_STATUS:
3668 case PROC_STACKGAP_STATUS:
3669 case PROC_TRACE_STATUS:
3670 case PROC_TRAPCAP_STATUS:
3671 case PROC_NO_NEW_PRIVS_STATUS:
3672 case PROC_WXMAP_STATUS:
3673 data = &flags;
3674 break;
3675 case PROC_PDEATHSIG_CTL:
3676 error = copyin(uap->data, &signum, sizeof(signum));
3677 if (error != 0)
3678 return (error);
3679 data = &signum;
3680 break;
3681 case PROC_PDEATHSIG_STATUS:
3682 data = &signum;
3683 break;
3684 default:
3685 return (EINVAL);
3686 }
3687 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id),
3688 uap->com, data);
3689 switch (uap->com) {
3690 case PROC_REAP_STATUS:
3691 if (error == 0)
3692 error = copyout(&x.rs, uap->data, sizeof(x.rs));
3693 break;
3694 case PROC_REAP_KILL:
3695 error1 = copyout(&x.rk, uap->data, sizeof(x.rk));
3696 if (error == 0)
3697 error = error1;
3698 break;
3699 case PROC_ASLR_STATUS:
3700 case PROC_PROTMAX_STATUS:
3701 case PROC_STACKGAP_STATUS:
3702 case PROC_TRACE_STATUS:
3703 case PROC_TRAPCAP_STATUS:
3704 case PROC_NO_NEW_PRIVS_STATUS:
3705 case PROC_WXMAP_STATUS:
3706 if (error == 0)
3707 error = copyout(&flags, uap->data, sizeof(flags));
3708 break;
3709 case PROC_PDEATHSIG_STATUS:
3710 if (error == 0)
3711 error = copyout(&signum, uap->data, sizeof(signum));
3712 break;
3713 }
3714 return (error);
3715 }
3716
3717 int
freebsd32_fcntl(struct thread * td,struct freebsd32_fcntl_args * uap)3718 freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap)
3719 {
3720 long tmp;
3721
3722 switch (uap->cmd) {
3723 /*
3724 * Do unsigned conversion for arg when operation
3725 * interprets it as flags or pointer.
3726 */
3727 case F_SETLK_REMOTE:
3728 case F_SETLKW:
3729 case F_SETLK:
3730 case F_GETLK:
3731 case F_SETFD:
3732 case F_SETFL:
3733 case F_OGETLK:
3734 case F_OSETLK:
3735 case F_OSETLKW:
3736 case F_KINFO:
3737 tmp = (unsigned int)(uap->arg);
3738 break;
3739 default:
3740 tmp = uap->arg;
3741 break;
3742 }
3743 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp));
3744 }
3745
3746 int
freebsd32_ppoll(struct thread * td,struct freebsd32_ppoll_args * uap)3747 freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap)
3748 {
3749 struct timespec32 ts32;
3750 struct timespec ts, *tsp;
3751 sigset_t set, *ssp;
3752 int error;
3753
3754 if (uap->ts != NULL) {
3755 error = copyin(uap->ts, &ts32, sizeof(ts32));
3756 if (error != 0)
3757 return (error);
3758 CP(ts32, ts, tv_sec);
3759 CP(ts32, ts, tv_nsec);
3760 tsp = &ts;
3761 } else
3762 tsp = NULL;
3763 if (uap->set != NULL) {
3764 error = copyin(uap->set, &set, sizeof(set));
3765 if (error != 0)
3766 return (error);
3767 ssp = &set;
3768 } else
3769 ssp = NULL;
3770
3771 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp));
3772 }
3773
3774 int
freebsd32_sched_rr_get_interval(struct thread * td,struct freebsd32_sched_rr_get_interval_args * uap)3775 freebsd32_sched_rr_get_interval(struct thread *td,
3776 struct freebsd32_sched_rr_get_interval_args *uap)
3777 {
3778 struct timespec ts;
3779 struct timespec32 ts32;
3780 int error;
3781
3782 error = kern_sched_rr_get_interval(td, uap->pid, &ts);
3783 if (error == 0) {
3784 CP(ts, ts32, tv_sec);
3785 CP(ts, ts32, tv_nsec);
3786 error = copyout(&ts32, uap->interval, sizeof(ts32));
3787 }
3788 return (error);
3789 }
3790
3791 static void
timex_to_32(struct timex32 * dst,struct timex * src)3792 timex_to_32(struct timex32 *dst, struct timex *src)
3793 {
3794 CP(*src, *dst, modes);
3795 CP(*src, *dst, offset);
3796 CP(*src, *dst, freq);
3797 CP(*src, *dst, maxerror);
3798 CP(*src, *dst, esterror);
3799 CP(*src, *dst, status);
3800 CP(*src, *dst, constant);
3801 CP(*src, *dst, precision);
3802 CP(*src, *dst, tolerance);
3803 CP(*src, *dst, ppsfreq);
3804 CP(*src, *dst, jitter);
3805 CP(*src, *dst, shift);
3806 CP(*src, *dst, stabil);
3807 CP(*src, *dst, jitcnt);
3808 CP(*src, *dst, calcnt);
3809 CP(*src, *dst, errcnt);
3810 CP(*src, *dst, stbcnt);
3811 }
3812
3813 static void
timex_from_32(struct timex * dst,struct timex32 * src)3814 timex_from_32(struct timex *dst, struct timex32 *src)
3815 {
3816 CP(*src, *dst, modes);
3817 CP(*src, *dst, offset);
3818 CP(*src, *dst, freq);
3819 CP(*src, *dst, maxerror);
3820 CP(*src, *dst, esterror);
3821 CP(*src, *dst, status);
3822 CP(*src, *dst, constant);
3823 CP(*src, *dst, precision);
3824 CP(*src, *dst, tolerance);
3825 CP(*src, *dst, ppsfreq);
3826 CP(*src, *dst, jitter);
3827 CP(*src, *dst, shift);
3828 CP(*src, *dst, stabil);
3829 CP(*src, *dst, jitcnt);
3830 CP(*src, *dst, calcnt);
3831 CP(*src, *dst, errcnt);
3832 CP(*src, *dst, stbcnt);
3833 }
3834
3835 int
freebsd32_ntp_adjtime(struct thread * td,struct freebsd32_ntp_adjtime_args * uap)3836 freebsd32_ntp_adjtime(struct thread *td, struct freebsd32_ntp_adjtime_args *uap)
3837 {
3838 struct timex tx;
3839 struct timex32 tx32;
3840 int error, retval;
3841
3842 error = copyin(uap->tp, &tx32, sizeof(tx32));
3843 if (error == 0) {
3844 timex_from_32(&tx, &tx32);
3845 error = kern_ntp_adjtime(td, &tx, &retval);
3846 if (error == 0) {
3847 timex_to_32(&tx32, &tx);
3848 error = copyout(&tx32, uap->tp, sizeof(tx32));
3849 if (error == 0)
3850 td->td_retval[0] = retval;
3851 }
3852 }
3853 return (error);
3854 }
3855