1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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 #include "opt_ffclock.h"
31 #include "opt_inet.h"
32 #include "opt_inet6.h"
33 #include "opt_ktrace.h"
34
35 #define __ELF_WORD_SIZE 32
36
37 #ifdef COMPAT_FREEBSD11
38 #define _WANT_FREEBSD11_KEVENT
39 #endif
40
41 #include <sys/param.h>
42 #include <sys/bus.h>
43 #include <sys/capsicum.h>
44 #include <sys/clock.h>
45 #include <sys/exec.h>
46 #include <sys/fcntl.h>
47 #include <sys/filedesc.h>
48 #include <sys/imgact.h>
49 #include <sys/jail.h>
50 #include <sys/kernel.h>
51 #include <sys/limits.h>
52 #include <sys/linker.h>
53 #include <sys/lock.h>
54 #include <sys/malloc.h>
55 #include <sys/file.h> /* Must come after sys/malloc.h */
56 #include <sys/imgact.h>
57 #include <sys/mbuf.h>
58 #include <sys/mman.h>
59 #include <sys/module.h>
60 #include <sys/mount.h>
61 #include <sys/mutex.h>
62 #include <sys/namei.h>
63 #include <sys/priv.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/timerfd.h>
86 #include <sys/timex.h>
87 #include <sys/unistd.h>
88 #include <sys/ucontext.h>
89 #include <sys/ucred.h>
90 #include <sys/vnode.h>
91 #include <sys/wait.h>
92 #include <sys/ipc.h>
93 #include <sys/msg.h>
94 #include <sys/sem.h>
95 #include <sys/shm.h>
96 #include <sys/timeffc.h>
97 #ifdef KTRACE
98 #include <sys/ktrace.h>
99 #endif
100
101 #ifdef INET
102 #include <netinet/in.h>
103 #endif
104
105 #include <vm/vm.h>
106 #include <vm/vm_param.h>
107 #include <vm/pmap.h>
108 #include <vm/vm_map.h>
109 #include <vm/vm_object.h>
110 #include <vm/vm_extern.h>
111
112 #include <machine/cpu.h>
113 #include <machine/elf.h>
114 #ifdef __amd64__
115 #include <machine/md_var.h>
116 #endif
117
118 #include <security/audit/audit.h>
119 #include <security/mac/mac_syscalls.h>
120
121 #include <compat/freebsd32/freebsd32_util.h>
122 #include <compat/freebsd32/freebsd32.h>
123 #include <compat/freebsd32/freebsd32_ipc.h>
124 #include <compat/freebsd32/freebsd32_misc.h>
125 #include <compat/freebsd32/freebsd32_signal.h>
126 #include <compat/freebsd32/freebsd32_proto.h>
127
128 int compat_freebsd_32bit = 1;
129
130 static void
register_compat32_feature(void * arg)131 register_compat32_feature(void *arg)
132 {
133 if (!compat_freebsd_32bit)
134 return;
135
136 FEATURE_ADD("compat_freebsd32", "Compatible with 32-bit FreeBSD");
137 FEATURE_ADD("compat_freebsd_32bit",
138 "Compatible with 32-bit FreeBSD (legacy feature name)");
139 }
140 SYSINIT(freebsd32, SI_SUB_EXEC, SI_ORDER_ANY, register_compat32_feature,
141 NULL);
142
143 struct ptrace_io_desc32 {
144 int piod_op;
145 uint32_t piod_offs;
146 uint32_t piod_addr;
147 uint32_t piod_len;
148 };
149
150 struct ptrace_vm_entry32 {
151 int pve_entry;
152 int pve_timestamp;
153 uint32_t pve_start;
154 uint32_t pve_end;
155 uint32_t pve_offset;
156 u_int pve_prot;
157 u_int pve_pathlen;
158 int32_t pve_fileid;
159 u_int pve_fsid;
160 uint32_t pve_path;
161 };
162
163 #ifdef __amd64__
164 CTASSERT(sizeof(struct timeval32) == 8);
165 CTASSERT(sizeof(struct timespec32) == 8);
166 CTASSERT(sizeof(struct itimerval32) == 16);
167 CTASSERT(sizeof(struct bintime32) == 12);
168 #else
169 CTASSERT(sizeof(struct timeval32) == 16);
170 CTASSERT(sizeof(struct timespec32) == 16);
171 CTASSERT(sizeof(struct itimerval32) == 32);
172 CTASSERT(sizeof(struct bintime32) == 16);
173 #endif
174 CTASSERT(sizeof(struct ostatfs32) == 256);
175 #ifdef __amd64__
176 CTASSERT(sizeof(struct rusage32) == 72);
177 #else
178 CTASSERT(sizeof(struct rusage32) == 88);
179 #endif
180 CTASSERT(sizeof(struct sigaltstack32) == 12);
181 #ifdef __amd64__
182 CTASSERT(sizeof(struct kevent32) == 56);
183 #else
184 CTASSERT(sizeof(struct kevent32) == 64);
185 #endif
186 CTASSERT(sizeof(struct iovec32) == 8);
187 CTASSERT(sizeof(struct msghdr32) == 28);
188 #ifdef __amd64__
189 CTASSERT(sizeof(struct stat32) == 208);
190 CTASSERT(sizeof(struct freebsd11_stat32) == 96);
191 #else
192 CTASSERT(sizeof(struct stat32) == 224);
193 CTASSERT(sizeof(struct freebsd11_stat32) == 120);
194 #endif
195 CTASSERT(sizeof(struct sigaction32) == 24);
196
197 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count);
198 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count);
199 static int freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id,
200 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp);
201
202 void
freebsd32_rusage_out(const struct rusage * s,struct rusage32 * s32)203 freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32)
204 {
205
206 bzero(s32, sizeof(*s32));
207 TV_CP(*s, *s32, ru_utime);
208 TV_CP(*s, *s32, ru_stime);
209 CP(*s, *s32, ru_maxrss);
210 CP(*s, *s32, ru_ixrss);
211 CP(*s, *s32, ru_idrss);
212 CP(*s, *s32, ru_isrss);
213 CP(*s, *s32, ru_minflt);
214 CP(*s, *s32, ru_majflt);
215 CP(*s, *s32, ru_nswap);
216 CP(*s, *s32, ru_inblock);
217 CP(*s, *s32, ru_oublock);
218 CP(*s, *s32, ru_msgsnd);
219 CP(*s, *s32, ru_msgrcv);
220 CP(*s, *s32, ru_nsignals);
221 CP(*s, *s32, ru_nvcsw);
222 CP(*s, *s32, ru_nivcsw);
223 }
224
225 int
freebsd32_wait4(struct thread * td,struct freebsd32_wait4_args * uap)226 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap)
227 {
228 int error, status;
229 struct rusage32 ru32;
230 struct rusage ru, *rup;
231
232 if (uap->rusage != NULL)
233 rup = &ru;
234 else
235 rup = NULL;
236 error = kern_wait(td, uap->pid, &status, uap->options, rup);
237 if (error)
238 return (error);
239 if (uap->status != NULL)
240 error = copyout(&status, uap->status, sizeof(status));
241 if (uap->rusage != NULL && error == 0) {
242 freebsd32_rusage_out(&ru, &ru32);
243 error = copyout(&ru32, uap->rusage, sizeof(ru32));
244 }
245 return (error);
246 }
247
248 int
freebsd32_wait6(struct thread * td,struct freebsd32_wait6_args * uap)249 freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap)
250 {
251 struct __wrusage32 wru32;
252 struct __wrusage wru, *wrup;
253 struct __siginfo32 si32;
254 struct __siginfo si, *sip;
255 int error, status;
256
257 if (uap->wrusage != NULL)
258 wrup = &wru;
259 else
260 wrup = NULL;
261 if (uap->info != NULL) {
262 sip = &si;
263 bzero(sip, sizeof(*sip));
264 } else
265 sip = NULL;
266 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id),
267 &status, uap->options, wrup, sip);
268 if (error != 0)
269 return (error);
270 if (uap->status != NULL)
271 error = copyout(&status, uap->status, sizeof(status));
272 if (uap->wrusage != NULL && error == 0) {
273 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self);
274 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children);
275 error = copyout(&wru32, uap->wrusage, sizeof(wru32));
276 }
277 if (uap->info != NULL && error == 0) {
278 siginfo_to_siginfo32 (&si, &si32);
279 error = copyout(&si32, uap->info, sizeof(si32));
280 }
281 return (error);
282 }
283
284 int
freebsd32_pdwait(struct thread * td,struct freebsd32_pdwait_args * uap)285 freebsd32_pdwait(struct thread *td, struct freebsd32_pdwait_args *uap)
286 {
287 struct __wrusage32 wru32;
288 struct __wrusage wru, *wrup;
289 struct __siginfo32 si32;
290 struct __siginfo si, *sip;
291 int error, status;
292
293 wrup = uap->wrusage != NULL ? &wru : NULL;
294 if (uap->info != NULL) {
295 sip = &si;
296 bzero(sip, sizeof(*sip));
297 } else {
298 sip = NULL;
299 }
300 error = kern_pdwait(td, uap->fd, &status, uap->options, wrup, sip);
301 if (uap->status != NULL && error == 0)
302 error = copyout(&status, uap->status, sizeof(status));
303 if (uap->wrusage != NULL && error == 0) {
304 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self);
305 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children);
306 error = copyout(&wru32, uap->wrusage, sizeof(wru32));
307 }
308 if (uap->info != NULL && error == 0) {
309 siginfo_to_siginfo32 (&si, &si32);
310 error = copyout(&si32, uap->info, sizeof(si32));
311 }
312 return (error);
313 }
314
315 #ifdef COMPAT_FREEBSD4
316 static void
copy_statfs(struct statfs * in,struct ostatfs32 * out)317 copy_statfs(struct statfs *in, struct ostatfs32 *out)
318 {
319
320 statfs_scale_blocks(in, INT32_MAX);
321 bzero(out, sizeof(*out));
322 CP(*in, *out, f_bsize);
323 out->f_iosize = MIN(in->f_iosize, INT32_MAX);
324 CP(*in, *out, f_blocks);
325 CP(*in, *out, f_bfree);
326 CP(*in, *out, f_bavail);
327 out->f_files = MIN(in->f_files, INT32_MAX);
328 out->f_ffree = MIN(in->f_ffree, INT32_MAX);
329 CP(*in, *out, f_fsid);
330 CP(*in, *out, f_owner);
331 CP(*in, *out, f_type);
332 CP(*in, *out, f_flags);
333 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX);
334 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX);
335 strlcpy(out->f_fstypename,
336 in->f_fstypename, MFSNAMELEN);
337 strlcpy(out->f_mntonname,
338 in->f_mntonname, min(MNAMELEN, FREEBSD4_OMNAMELEN));
339 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX);
340 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX);
341 strlcpy(out->f_mntfromname,
342 in->f_mntfromname, min(MNAMELEN, FREEBSD4_OMNAMELEN));
343 }
344 #endif
345
346 int
freebsd32_getfsstat(struct thread * td,struct freebsd32_getfsstat_args * uap)347 freebsd32_getfsstat(struct thread *td, struct freebsd32_getfsstat_args *uap)
348 {
349 size_t count;
350 int error;
351
352 if (uap->bufsize < 0 || uap->bufsize > SIZE_MAX)
353 return (EINVAL);
354 error = kern_getfsstat(td, &uap->buf, uap->bufsize, &count,
355 UIO_USERSPACE, uap->mode);
356 if (error == 0)
357 td->td_retval[0] = count;
358 return (error);
359 }
360
361 #ifdef COMPAT_FREEBSD4
362 int
freebsd4_freebsd32_getfsstat(struct thread * td,struct freebsd4_freebsd32_getfsstat_args * uap)363 freebsd4_freebsd32_getfsstat(struct thread *td,
364 struct freebsd4_freebsd32_getfsstat_args *uap)
365 {
366 struct statfs *buf, *sp;
367 struct ostatfs32 stat32;
368 size_t count, size, copycount;
369 int error;
370
371 count = uap->bufsize / sizeof(struct ostatfs32);
372 size = count * sizeof(struct statfs);
373 error = kern_getfsstat(td, &buf, size, &count, UIO_SYSSPACE, uap->mode);
374 if (size > 0) {
375 sp = buf;
376 copycount = count;
377 while (copycount > 0 && error == 0) {
378 copy_statfs(sp, &stat32);
379 error = copyout(&stat32, uap->buf, sizeof(stat32));
380 sp++;
381 uap->buf++;
382 copycount--;
383 }
384 free(buf, M_STATFS);
385 }
386 if (error == 0)
387 td->td_retval[0] = count;
388 return (error);
389 }
390 #endif
391
392 #ifdef COMPAT_FREEBSD11
393 int
freebsd11_freebsd32_getfsstat(struct thread * td,struct freebsd11_freebsd32_getfsstat_args * uap)394 freebsd11_freebsd32_getfsstat(struct thread *td,
395 struct freebsd11_freebsd32_getfsstat_args *uap)
396 {
397 return(kern_freebsd11_getfsstat(td, uap->buf, uap->bufsize,
398 uap->mode));
399 }
400 #endif
401
402 int
freebsd32_sigaltstack(struct thread * td,struct freebsd32_sigaltstack_args * uap)403 freebsd32_sigaltstack(struct thread *td,
404 struct freebsd32_sigaltstack_args *uap)
405 {
406 struct sigaltstack32 s32;
407 struct sigaltstack ss, oss, *ssp;
408 int error;
409
410 if (uap->ss != NULL) {
411 error = copyin(uap->ss, &s32, sizeof(s32));
412 if (error)
413 return (error);
414 PTRIN_CP(s32, ss, ss_sp);
415 CP(s32, ss, ss_size);
416 CP(s32, ss, ss_flags);
417 ssp = &ss;
418 } else
419 ssp = NULL;
420 error = kern_sigaltstack(td, ssp, &oss);
421 if (error == 0 && uap->oss != NULL) {
422 PTROUT_CP(oss, s32, ss_sp);
423 CP(oss, s32, ss_size);
424 CP(oss, s32, ss_flags);
425 error = copyout(&s32, uap->oss, sizeof(s32));
426 }
427 return (error);
428 }
429
430 /*
431 * Custom version of exec_copyin_args() so that we can translate
432 * the pointers.
433 */
434 int
freebsd32_exec_copyin_args(struct image_args * args,const char * fname,uint32_t * argv,uint32_t * envv)435 freebsd32_exec_copyin_args(struct image_args *args, const char *fname,
436 uint32_t *argv, uint32_t *envv)
437 {
438 char *argp, *envp;
439 uint32_t *p32, arg;
440 int error;
441
442 bzero(args, sizeof(*args));
443 if (argv == NULL)
444 return (EFAULT);
445
446 /*
447 * Allocate demand-paged memory for the file name, argument, and
448 * environment strings.
449 */
450 error = exec_alloc_args(args);
451 if (error != 0)
452 return (error);
453
454 /*
455 * Copy the file name.
456 */
457 error = exec_args_add_fname(args, fname, UIO_USERSPACE);
458 if (error != 0)
459 goto err_exit;
460
461 /*
462 * extract arguments first
463 */
464 p32 = argv;
465 for (;;) {
466 error = copyin(p32++, &arg, sizeof(arg));
467 if (error)
468 goto err_exit;
469 if (arg == 0)
470 break;
471 argp = PTRIN(arg);
472 error = exec_args_add_arg(args, argp, UIO_USERSPACE);
473 if (error != 0)
474 goto err_exit;
475 }
476
477 /*
478 * extract environment strings
479 */
480 if (envv) {
481 p32 = envv;
482 for (;;) {
483 error = copyin(p32++, &arg, sizeof(arg));
484 if (error)
485 goto err_exit;
486 if (arg == 0)
487 break;
488 envp = PTRIN(arg);
489 error = exec_args_add_env(args, envp, UIO_USERSPACE);
490 if (error != 0)
491 goto err_exit;
492 }
493 }
494
495 return (0);
496
497 err_exit:
498 exec_free_args(args);
499 return (error);
500 }
501
502 int
freebsd32_execve(struct thread * td,struct freebsd32_execve_args * uap)503 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap)
504 {
505 struct image_args eargs;
506 struct vmspace *oldvmspace;
507 int error;
508
509 error = pre_execve(td, &oldvmspace);
510 if (error != 0)
511 return (error);
512 error = freebsd32_exec_copyin_args(&eargs, uap->fname, uap->argv,
513 uap->envv);
514 if (error == 0)
515 error = kern_execve(td, &eargs, NULL, oldvmspace);
516 post_execve(td, error, oldvmspace);
517 AUDIT_SYSCALL_EXIT(error == EJUSTRETURN ? 0 : error, td);
518 return (error);
519 }
520
521 int
freebsd32_fexecve(struct thread * td,struct freebsd32_fexecve_args * uap)522 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap)
523 {
524 struct image_args eargs;
525 struct vmspace *oldvmspace;
526 int error;
527
528 error = pre_execve(td, &oldvmspace);
529 if (error != 0)
530 return (error);
531 error = freebsd32_exec_copyin_args(&eargs, NULL, uap->argv, uap->envv);
532 if (error == 0) {
533 eargs.fd = uap->fd;
534 error = kern_execve(td, &eargs, NULL, oldvmspace);
535 }
536 post_execve(td, error, oldvmspace);
537 AUDIT_SYSCALL_EXIT(error == EJUSTRETURN ? 0 : error, td);
538 return (error);
539 }
540
541 int
freebsd32_mknodat(struct thread * td,struct freebsd32_mknodat_args * uap)542 freebsd32_mknodat(struct thread *td, struct freebsd32_mknodat_args *uap)
543 {
544
545 return (kern_mknodat(td, uap->fd, uap->path, UIO_USERSPACE,
546 uap->mode, PAIR32TO64(dev_t, uap->dev)));
547 }
548
549 int
freebsd32_mprotect(struct thread * td,struct freebsd32_mprotect_args * uap)550 freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap)
551 {
552 int prot;
553
554 prot = uap->prot;
555 #if defined(__amd64__)
556 if (i386_read_exec && (prot & PROT_READ) != 0)
557 prot |= PROT_EXEC;
558 #endif
559 return (kern_mprotect(td, (uintptr_t)PTRIN(uap->addr), uap->len,
560 prot, 0));
561 }
562
563 int
freebsd32_mmap(struct thread * td,struct freebsd32_mmap_args * uap)564 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap)
565 {
566 int prot;
567
568 prot = uap->prot;
569 #if defined(__amd64__)
570 if (i386_read_exec && (prot & PROT_READ))
571 prot |= PROT_EXEC;
572 #endif
573
574 return (kern_mmap(td, &(struct mmap_req){
575 .mr_hint = (uintptr_t)uap->addr,
576 .mr_len = uap->len,
577 .mr_prot = prot,
578 .mr_flags = uap->flags,
579 .mr_fd = uap->fd,
580 .mr_pos = PAIR32TO64(off_t, uap->pos),
581 }));
582 }
583
584 #ifdef COMPAT_FREEBSD6
585 int
freebsd6_freebsd32_mmap(struct thread * td,struct freebsd6_freebsd32_mmap_args * uap)586 freebsd6_freebsd32_mmap(struct thread *td,
587 struct freebsd6_freebsd32_mmap_args *uap)
588 {
589 int prot;
590
591 prot = uap->prot;
592 #if defined(__amd64__)
593 if (i386_read_exec && (prot & PROT_READ))
594 prot |= PROT_EXEC;
595 #endif
596
597 return (kern_mmap(td, &(struct mmap_req){
598 .mr_hint = (uintptr_t)uap->addr,
599 .mr_len = uap->len,
600 .mr_prot = prot,
601 .mr_flags = uap->flags,
602 .mr_fd = uap->fd,
603 .mr_pos = PAIR32TO64(off_t, uap->pos),
604 }));
605 }
606 #endif
607
608 #ifdef COMPAT_43
609 int
ofreebsd32_mmap(struct thread * td,struct ofreebsd32_mmap_args * uap)610 ofreebsd32_mmap(struct thread *td, struct ofreebsd32_mmap_args *uap)
611 {
612 return (kern_ommap(td, (uintptr_t)uap->addr, uap->len, uap->prot,
613 uap->flags, uap->fd, uap->pos));
614 }
615 #endif
616
617 int
freebsd32_setitimer(struct thread * td,struct freebsd32_setitimer_args * uap)618 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap)
619 {
620 struct itimerval itv, oitv, *itvp;
621 struct itimerval32 i32;
622 int error;
623
624 if (uap->itv != NULL) {
625 error = copyin(uap->itv, &i32, sizeof(i32));
626 if (error)
627 return (error);
628 TV_CP(i32, itv, it_interval);
629 TV_CP(i32, itv, it_value);
630 itvp = &itv;
631 } else
632 itvp = NULL;
633 error = kern_setitimer(td, uap->which, itvp, &oitv);
634 if (error || uap->oitv == NULL)
635 return (error);
636 TV_CP(oitv, i32, it_interval);
637 TV_CP(oitv, i32, it_value);
638 return (copyout(&i32, uap->oitv, sizeof(i32)));
639 }
640
641 int
freebsd32_getitimer(struct thread * td,struct freebsd32_getitimer_args * uap)642 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap)
643 {
644 struct itimerval itv;
645 struct itimerval32 i32;
646 int error;
647
648 error = kern_getitimer(td, uap->which, &itv);
649 if (error || uap->itv == NULL)
650 return (error);
651 TV_CP(itv, i32, it_interval);
652 TV_CP(itv, i32, it_value);
653 return (copyout(&i32, uap->itv, sizeof(i32)));
654 }
655
656 int
freebsd32_select(struct thread * td,struct freebsd32_select_args * uap)657 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap)
658 {
659 struct timeval32 tv32;
660 struct timeval tv, *tvp;
661 int error;
662
663 if (uap->tv != NULL) {
664 error = copyin(uap->tv, &tv32, sizeof(tv32));
665 if (error)
666 return (error);
667 CP(tv32, tv, tv_sec);
668 CP(tv32, tv, tv_usec);
669 tvp = &tv;
670 } else
671 tvp = NULL;
672 /*
673 * XXX Do pointers need PTRIN()?
674 */
675 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp,
676 sizeof(int32_t) * 8));
677 }
678
679 int
freebsd32_pselect(struct thread * td,struct freebsd32_pselect_args * uap)680 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap)
681 {
682 struct timespec32 ts32;
683 struct timespec ts;
684 struct timeval tv, *tvp;
685 sigset_t set, *uset;
686 int error;
687
688 if (uap->ts != NULL) {
689 error = copyin(uap->ts, &ts32, sizeof(ts32));
690 if (error != 0)
691 return (error);
692 CP(ts32, ts, tv_sec);
693 CP(ts32, ts, tv_nsec);
694 TIMESPEC_TO_TIMEVAL(&tv, &ts);
695 tvp = &tv;
696 } else
697 tvp = NULL;
698 if (uap->sm != NULL) {
699 error = copyin(uap->sm, &set, sizeof(set));
700 if (error != 0)
701 return (error);
702 uset = &set;
703 } else
704 uset = NULL;
705 /*
706 * XXX Do pointers need PTRIN()?
707 */
708 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp,
709 uset, sizeof(int32_t) * 8);
710 return (error);
711 }
712
713 static void
freebsd32_kevent_to_kevent32(const struct kevent * kevp,struct kevent32 * ks32)714 freebsd32_kevent_to_kevent32(const struct kevent *kevp, struct kevent32 *ks32)
715 {
716 uint64_t e;
717 int j;
718
719 CP(*kevp, *ks32, ident);
720 CP(*kevp, *ks32, filter);
721 CP(*kevp, *ks32, flags);
722 CP(*kevp, *ks32, fflags);
723 #if BYTE_ORDER == LITTLE_ENDIAN
724 ks32->data1 = kevp->data;
725 ks32->data2 = kevp->data >> 32;
726 #else
727 ks32->data1 = kevp->data >> 32;
728 ks32->data2 = kevp->data;
729 #endif
730 PTROUT_CP(*kevp, *ks32, udata);
731 for (j = 0; j < nitems(kevp->ext); j++) {
732 e = kevp->ext[j];
733 #if BYTE_ORDER == LITTLE_ENDIAN
734 ks32->ext64[2 * j] = e;
735 ks32->ext64[2 * j + 1] = e >> 32;
736 #else
737 ks32->ext64[2 * j] = e >> 32;
738 ks32->ext64[2 * j + 1] = e;
739 #endif
740 }
741 }
742
743 void
freebsd32_kinfo_knote_to_32(const struct kinfo_knote * kin,struct kinfo_knote32 * kin32)744 freebsd32_kinfo_knote_to_32(const struct kinfo_knote *kin,
745 struct kinfo_knote32 *kin32)
746 {
747 memset(kin32, 0, sizeof(*kin32));
748 CP(*kin, *kin32, knt_kq_fd);
749 freebsd32_kevent_to_kevent32(&kin->knt_event, &kin32->knt_event);
750 CP(*kin, *kin32, knt_status);
751 CP(*kin, *kin32, knt_extdata);
752 switch (kin->knt_extdata) {
753 case KNOTE_EXTDATA_NONE:
754 break;
755 case KNOTE_EXTDATA_VNODE:
756 CP(*kin, *kin32, knt_vnode.knt_vnode_type);
757 #if BYTE_ORDER == LITTLE_ENDIAN
758 kin32->knt_vnode.knt_vnode_fsid[0] = kin->knt_vnode.
759 knt_vnode_fsid;
760 kin32->knt_vnode.knt_vnode_fsid[1] = kin->knt_vnode.
761 knt_vnode_fsid >> 32;
762 kin32->knt_vnode.knt_vnode_fileid[0] = kin->knt_vnode.
763 knt_vnode_fileid;
764 kin32->knt_vnode.knt_vnode_fileid[1] = kin->knt_vnode.
765 knt_vnode_fileid >> 32;
766 #else
767 kin32->knt_vnode.knt_vnode_fsid[1] = kin->knt_vnode.
768 knt_vnode_fsid;
769 kin32->knt_vnode.knt_vnode_fsid[0] = kin->knt_vnode.
770 knt_vnode_fsid >> 32;
771 kin32->knt_vnode.knt_vnode_fileid[1] = kin->knt_vnode.
772 knt_vnode_fileid;
773 kin32->knt_vnode.knt_vnode_fileid[0] = kin->knt_vnode.
774 knt_vnode_fileid >> 32;
775 #endif
776 memcpy(kin32->knt_vnode.knt_vnode_fullpath,
777 kin->knt_vnode.knt_vnode_fullpath, PATH_MAX);
778 break;
779 case KNOTE_EXTDATA_PIPE:
780 #if BYTE_ORDER == LITTLE_ENDIAN
781 kin32->knt_pipe.knt_pipe_ino[0] = kin->knt_pipe.knt_pipe_ino;
782 kin32->knt_pipe.knt_pipe_ino[1] = kin->knt_pipe.
783 knt_pipe_ino >> 32;
784 #else
785 kin32->knt_pipe.knt_pipe_ino[1] = kin->knt_pipe.knt_pipe_ino;
786 kin32->knt_pipe.knt_pipe_ino[0] = kin->knt_pipe.
787 knt_pipe_ino >> 32;
788 #endif
789 break;
790 }
791 }
792
793 /*
794 * Copy 'count' items into the destination list pointed to by uap->eventlist.
795 */
796 static int
freebsd32_kevent_copyout(void * arg,struct kevent * kevp,int count)797 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count)
798 {
799 struct freebsd32_kevent_args *uap;
800 struct kevent32 ks32[KQ_NEVENTS];
801 int i, error;
802
803 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
804 uap = (struct freebsd32_kevent_args *)arg;
805
806 for (i = 0; i < count; i++)
807 freebsd32_kevent_to_kevent32(&kevp[i], &ks32[i]);
808 error = copyout(ks32, uap->eventlist, count * sizeof *ks32);
809 if (error == 0)
810 uap->eventlist += count;
811 return (error);
812 }
813
814 /*
815 * Copy 'count' items from the list pointed to by uap->changelist.
816 */
817 static int
freebsd32_kevent_copyin(void * arg,struct kevent * kevp,int count)818 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count)
819 {
820 struct freebsd32_kevent_args *uap;
821 struct kevent32 ks32[KQ_NEVENTS];
822 uint64_t e;
823 int i, j, error;
824
825 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
826 uap = (struct freebsd32_kevent_args *)arg;
827
828 error = copyin(uap->changelist, ks32, count * sizeof *ks32);
829 if (error)
830 goto done;
831 uap->changelist += count;
832
833 for (i = 0; i < count; i++) {
834 CP(ks32[i], kevp[i], ident);
835 CP(ks32[i], kevp[i], filter);
836 CP(ks32[i], kevp[i], flags);
837 CP(ks32[i], kevp[i], fflags);
838 kevp[i].data = PAIR32TO64(uint64_t, ks32[i].data);
839 PTRIN_CP(ks32[i], kevp[i], udata);
840 for (j = 0; j < nitems(kevp->ext); j++) {
841 #if BYTE_ORDER == LITTLE_ENDIAN
842 e = ks32[i].ext64[2 * j + 1];
843 e <<= 32;
844 e += ks32[i].ext64[2 * j];
845 #else
846 e = ks32[i].ext64[2 * j];
847 e <<= 32;
848 e += ks32[i].ext64[2 * j + 1];
849 #endif
850 kevp[i].ext[j] = e;
851 }
852 }
853 done:
854 return (error);
855 }
856
857 int
freebsd32_kevent(struct thread * td,struct freebsd32_kevent_args * uap)858 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap)
859 {
860 struct timespec32 ts32;
861 struct timespec ts, *tsp;
862 struct kevent_copyops k_ops = {
863 .arg = uap,
864 .k_copyout = freebsd32_kevent_copyout,
865 .k_copyin = freebsd32_kevent_copyin,
866 };
867 #ifdef KTRACE
868 struct kevent32 *eventlist = uap->eventlist;
869 #endif
870 int error;
871
872 if (uap->timeout) {
873 error = copyin(uap->timeout, &ts32, sizeof(ts32));
874 if (error)
875 return (error);
876 CP(ts32, ts, tv_sec);
877 CP(ts32, ts, tv_nsec);
878 tsp = &ts;
879 } else
880 tsp = NULL;
881 #ifdef KTRACE
882 if (KTRPOINT(td, KTR_STRUCT_ARRAY))
883 ktrstructarray("kevent32", UIO_USERSPACE, uap->changelist,
884 uap->nchanges, sizeof(struct kevent32));
885 #endif
886 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents,
887 &k_ops, tsp);
888 #ifdef KTRACE
889 if (error == 0 && KTRPOINT(td, KTR_STRUCT_ARRAY))
890 ktrstructarray("kevent32", UIO_USERSPACE, eventlist,
891 td->td_retval[0], sizeof(struct kevent32));
892 #endif
893 return (error);
894 }
895
896 #ifdef COMPAT_FREEBSD11
897 static int
freebsd32_kevent11_copyout(void * arg,struct kevent * kevp,int count)898 freebsd32_kevent11_copyout(void *arg, struct kevent *kevp, int count)
899 {
900 struct freebsd11_freebsd32_kevent_args *uap;
901 struct freebsd11_kevent32 ks32[KQ_NEVENTS];
902 int i, error;
903
904 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
905 uap = (struct freebsd11_freebsd32_kevent_args *)arg;
906
907 for (i = 0; i < count; i++) {
908 CP(kevp[i], ks32[i], ident);
909 CP(kevp[i], ks32[i], filter);
910 CP(kevp[i], ks32[i], flags);
911 CP(kevp[i], ks32[i], fflags);
912 CP(kevp[i], ks32[i], data);
913 PTROUT_CP(kevp[i], ks32[i], udata);
914 }
915 error = copyout(ks32, uap->eventlist, count * sizeof *ks32);
916 if (error == 0)
917 uap->eventlist += count;
918 return (error);
919 }
920
921 /*
922 * Copy 'count' items from the list pointed to by uap->changelist.
923 */
924 static int
freebsd32_kevent11_copyin(void * arg,struct kevent * kevp,int count)925 freebsd32_kevent11_copyin(void *arg, struct kevent *kevp, int count)
926 {
927 struct freebsd11_freebsd32_kevent_args *uap;
928 struct freebsd11_kevent32 ks32[KQ_NEVENTS];
929 int i, j, error;
930
931 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));
932 uap = (struct freebsd11_freebsd32_kevent_args *)arg;
933
934 error = copyin(uap->changelist, ks32, count * sizeof *ks32);
935 if (error)
936 goto done;
937 uap->changelist += count;
938
939 for (i = 0; i < count; i++) {
940 CP(ks32[i], kevp[i], ident);
941 CP(ks32[i], kevp[i], filter);
942 CP(ks32[i], kevp[i], flags);
943 CP(ks32[i], kevp[i], fflags);
944 CP(ks32[i], kevp[i], data);
945 PTRIN_CP(ks32[i], kevp[i], udata);
946 for (j = 0; j < nitems(kevp->ext); j++)
947 kevp[i].ext[j] = 0;
948 }
949 done:
950 return (error);
951 }
952
953 int
freebsd11_freebsd32_kevent(struct thread * td,struct freebsd11_freebsd32_kevent_args * uap)954 freebsd11_freebsd32_kevent(struct thread *td,
955 struct freebsd11_freebsd32_kevent_args *uap)
956 {
957 struct timespec32 ts32;
958 struct timespec ts, *tsp;
959 struct kevent_copyops k_ops = {
960 .arg = uap,
961 .k_copyout = freebsd32_kevent11_copyout,
962 .k_copyin = freebsd32_kevent11_copyin,
963 };
964 #ifdef KTRACE
965 struct freebsd11_kevent32 *eventlist = uap->eventlist;
966 #endif
967 int error;
968
969 if (uap->timeout) {
970 error = copyin(uap->timeout, &ts32, sizeof(ts32));
971 if (error)
972 return (error);
973 CP(ts32, ts, tv_sec);
974 CP(ts32, ts, tv_nsec);
975 tsp = &ts;
976 } else
977 tsp = NULL;
978 #ifdef KTRACE
979 if (KTRPOINT(td, KTR_STRUCT_ARRAY))
980 ktrstructarray("freebsd11_kevent32", UIO_USERSPACE,
981 uap->changelist, uap->nchanges,
982 sizeof(struct freebsd11_kevent32));
983 #endif
984 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents,
985 &k_ops, tsp);
986 #ifdef KTRACE
987 if (error == 0 && KTRPOINT(td, KTR_STRUCT_ARRAY))
988 ktrstructarray("freebsd11_kevent32", UIO_USERSPACE,
989 eventlist, td->td_retval[0],
990 sizeof(struct freebsd11_kevent32));
991 #endif
992 return (error);
993 }
994 #endif
995
996 int
freebsd32_gettimeofday(struct thread * td,struct freebsd32_gettimeofday_args * uap)997 freebsd32_gettimeofday(struct thread *td,
998 struct freebsd32_gettimeofday_args *uap)
999 {
1000 struct timeval atv;
1001 struct timeval32 atv32;
1002 struct timezone rtz;
1003 int error = 0;
1004
1005 if (uap->tp) {
1006 microtime(&atv);
1007 CP(atv, atv32, tv_sec);
1008 CP(atv, atv32, tv_usec);
1009 error = copyout(&atv32, uap->tp, sizeof (atv32));
1010 }
1011 if (error == 0 && uap->tzp != NULL) {
1012 rtz.tz_minuteswest = 0;
1013 rtz.tz_dsttime = 0;
1014 error = copyout(&rtz, uap->tzp, sizeof (rtz));
1015 }
1016 return (error);
1017 }
1018
1019 int
freebsd32_getrusage(struct thread * td,struct freebsd32_getrusage_args * uap)1020 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap)
1021 {
1022 struct rusage32 s32;
1023 struct rusage s;
1024 int error;
1025
1026 error = kern_getrusage(td, uap->who, &s);
1027 if (error == 0) {
1028 freebsd32_rusage_out(&s, &s32);
1029 error = copyout(&s32, uap->rusage, sizeof(s32));
1030 }
1031 return (error);
1032 }
1033
1034 static void
ptrace_lwpinfo_to32(const struct ptrace_lwpinfo * pl,struct ptrace_lwpinfo32 * pl32)1035 ptrace_lwpinfo_to32(const struct ptrace_lwpinfo *pl,
1036 struct ptrace_lwpinfo32 *pl32)
1037 {
1038
1039 bzero(pl32, sizeof(*pl32));
1040 pl32->pl_lwpid = pl->pl_lwpid;
1041 pl32->pl_event = pl->pl_event;
1042 pl32->pl_flags = pl->pl_flags;
1043 pl32->pl_sigmask = pl->pl_sigmask;
1044 pl32->pl_siglist = pl->pl_siglist;
1045 siginfo_to_siginfo32(&pl->pl_siginfo, &pl32->pl_siginfo);
1046 strcpy(pl32->pl_tdname, pl->pl_tdname);
1047 pl32->pl_child_pid = pl->pl_child_pid;
1048 pl32->pl_syscall_code = pl->pl_syscall_code;
1049 pl32->pl_syscall_narg = pl->pl_syscall_narg;
1050 }
1051
1052 static void
ptrace_sc_ret_to32(const struct ptrace_sc_ret * psr,struct ptrace_sc_ret32 * psr32)1053 ptrace_sc_ret_to32(const struct ptrace_sc_ret *psr,
1054 struct ptrace_sc_ret32 *psr32)
1055 {
1056
1057 bzero(psr32, sizeof(*psr32));
1058 psr32->sr_retval[0] = psr->sr_retval[0];
1059 psr32->sr_retval[1] = psr->sr_retval[1];
1060 psr32->sr_error = psr->sr_error;
1061 }
1062
1063 int
freebsd32_ptrace(struct thread * td,struct freebsd32_ptrace_args * uap)1064 freebsd32_ptrace(struct thread *td, struct freebsd32_ptrace_args *uap)
1065 {
1066 union {
1067 struct ptrace_io_desc piod;
1068 struct ptrace_lwpinfo pl;
1069 struct ptrace_vm_entry pve;
1070 struct ptrace_coredump pc;
1071 struct ptrace_sc_remote sr;
1072 struct dbreg32 dbreg;
1073 struct fpreg32 fpreg;
1074 struct reg32 reg;
1075 struct iovec vec;
1076 register_t args[nitems(td->td_sa.args)];
1077 struct ptrace_sc_ret psr;
1078 int ptevents;
1079 } r;
1080 union {
1081 struct ptrace_io_desc32 piod;
1082 struct ptrace_lwpinfo32 pl;
1083 struct ptrace_vm_entry32 pve;
1084 struct ptrace_coredump32 pc;
1085 struct ptrace_sc_remote32 sr;
1086 uint32_t args[nitems(td->td_sa.args)];
1087 struct ptrace_sc_ret32 psr;
1088 struct iovec32 vec;
1089 } r32;
1090 syscallarg_t pscr_args[nitems(td->td_sa.args)];
1091 u_int pscr_args32[nitems(td->td_sa.args)];
1092 void *addr;
1093 int data, error, i;
1094
1095 if (!allow_ptrace)
1096 return (ENOSYS);
1097 error = 0;
1098
1099 AUDIT_ARG_PID(uap->pid);
1100 AUDIT_ARG_CMD(uap->req);
1101 AUDIT_ARG_VALUE(uap->data);
1102 addr = &r;
1103 data = uap->data;
1104 switch (uap->req) {
1105 case PT_GET_EVENT_MASK:
1106 case PT_GET_SC_ARGS:
1107 case PT_GET_SC_RET:
1108 break;
1109 case PT_LWPINFO:
1110 if (uap->data > sizeof(r32.pl))
1111 return (EINVAL);
1112
1113 /*
1114 * Pass size of native structure in 'data'. Truncate
1115 * if necessary to avoid siginfo.
1116 */
1117 data = sizeof(r.pl);
1118 if (uap->data < offsetof(struct ptrace_lwpinfo32, pl_siginfo) +
1119 sizeof(struct __siginfo32))
1120 data = offsetof(struct ptrace_lwpinfo, pl_siginfo);
1121 break;
1122 case PT_GETREGS:
1123 bzero(&r.reg, sizeof(r.reg));
1124 break;
1125 case PT_GETFPREGS:
1126 bzero(&r.fpreg, sizeof(r.fpreg));
1127 break;
1128 case PT_GETDBREGS:
1129 bzero(&r.dbreg, sizeof(r.dbreg));
1130 break;
1131 case PT_SETREGS:
1132 error = copyin(uap->addr, &r.reg, sizeof(r.reg));
1133 break;
1134 case PT_SETFPREGS:
1135 error = copyin(uap->addr, &r.fpreg, sizeof(r.fpreg));
1136 break;
1137 case PT_SETDBREGS:
1138 error = copyin(uap->addr, &r.dbreg, sizeof(r.dbreg));
1139 break;
1140 case PT_GETREGSET:
1141 case PT_SETREGSET:
1142 error = copyin(uap->addr, &r32.vec, sizeof(r32.vec));
1143 if (error != 0)
1144 break;
1145
1146 r.vec.iov_len = r32.vec.iov_len;
1147 r.vec.iov_base = PTRIN(r32.vec.iov_base);
1148 break;
1149 case PT_SET_EVENT_MASK:
1150 if (uap->data != sizeof(r.ptevents))
1151 error = EINVAL;
1152 else
1153 error = copyin(uap->addr, &r.ptevents, uap->data);
1154 break;
1155 case PT_IO:
1156 error = copyin(uap->addr, &r32.piod, sizeof(r32.piod));
1157 if (error)
1158 break;
1159 CP(r32.piod, r.piod, piod_op);
1160 PTRIN_CP(r32.piod, r.piod, piod_offs);
1161 PTRIN_CP(r32.piod, r.piod, piod_addr);
1162 CP(r32.piod, r.piod, piod_len);
1163 break;
1164 case PT_VM_ENTRY:
1165 error = copyin(uap->addr, &r32.pve, sizeof(r32.pve));
1166 if (error)
1167 break;
1168
1169 CP(r32.pve, r.pve, pve_entry);
1170 CP(r32.pve, r.pve, pve_timestamp);
1171 CP(r32.pve, r.pve, pve_start);
1172 CP(r32.pve, r.pve, pve_end);
1173 CP(r32.pve, r.pve, pve_offset);
1174 CP(r32.pve, r.pve, pve_prot);
1175 CP(r32.pve, r.pve, pve_pathlen);
1176 CP(r32.pve, r.pve, pve_fileid);
1177 CP(r32.pve, r.pve, pve_fsid);
1178 PTRIN_CP(r32.pve, r.pve, pve_path);
1179 break;
1180 case PT_COREDUMP:
1181 if (uap->data != sizeof(r32.pc))
1182 error = EINVAL;
1183 else
1184 error = copyin(uap->addr, &r32.pc, uap->data);
1185 CP(r32.pc, r.pc, pc_fd);
1186 CP(r32.pc, r.pc, pc_flags);
1187 r.pc.pc_limit = PAIR32TO64(off_t, r32.pc.pc_limit);
1188 data = sizeof(r.pc);
1189 break;
1190 case PT_SC_REMOTE:
1191 if (uap->data != sizeof(r32.sr)) {
1192 error = EINVAL;
1193 break;
1194 }
1195 error = copyin(uap->addr, &r32.sr, uap->data);
1196 if (error != 0)
1197 break;
1198 CP(r32.sr, r.sr, pscr_syscall);
1199 CP(r32.sr, r.sr, pscr_nargs);
1200 if (r.sr.pscr_nargs > nitems(td->td_sa.args)) {
1201 error = EINVAL;
1202 break;
1203 }
1204 error = copyin(PTRIN(r32.sr.pscr_args), pscr_args32,
1205 sizeof(u_int) * r32.sr.pscr_nargs);
1206 if (error != 0)
1207 break;
1208 for (i = 0; i < r32.sr.pscr_nargs; i++)
1209 pscr_args[i] = pscr_args32[i];
1210 r.sr.pscr_args = pscr_args;
1211 break;
1212 case PTINTERNAL_FIRST ... PTINTERNAL_LAST:
1213 error = EINVAL;
1214 break;
1215 default:
1216 addr = uap->addr;
1217 break;
1218 }
1219 if (error)
1220 return (error);
1221
1222 error = kern_ptrace(td, uap->req, uap->pid, addr, data);
1223 if (error)
1224 return (error);
1225
1226 switch (uap->req) {
1227 case PT_VM_ENTRY:
1228 CP(r.pve, r32.pve, pve_entry);
1229 CP(r.pve, r32.pve, pve_timestamp);
1230 CP(r.pve, r32.pve, pve_start);
1231 CP(r.pve, r32.pve, pve_end);
1232 CP(r.pve, r32.pve, pve_offset);
1233 CP(r.pve, r32.pve, pve_prot);
1234 CP(r.pve, r32.pve, pve_pathlen);
1235 CP(r.pve, r32.pve, pve_fileid);
1236 CP(r.pve, r32.pve, pve_fsid);
1237 error = copyout(&r32.pve, uap->addr, sizeof(r32.pve));
1238 break;
1239 case PT_IO:
1240 CP(r.piod, r32.piod, piod_len);
1241 error = copyout(&r32.piod, uap->addr, sizeof(r32.piod));
1242 break;
1243 case PT_GETREGS:
1244 error = copyout(&r.reg, uap->addr, sizeof(r.reg));
1245 break;
1246 case PT_GETFPREGS:
1247 error = copyout(&r.fpreg, uap->addr, sizeof(r.fpreg));
1248 break;
1249 case PT_GETDBREGS:
1250 error = copyout(&r.dbreg, uap->addr, sizeof(r.dbreg));
1251 break;
1252 case PT_GETREGSET:
1253 r32.vec.iov_len = r.vec.iov_len;
1254 error = copyout(&r32.vec, uap->addr, sizeof(r32.vec));
1255 break;
1256 case PT_GET_EVENT_MASK:
1257 /* NB: The size in uap->data is validated in kern_ptrace(). */
1258 error = copyout(&r.ptevents, uap->addr, uap->data);
1259 break;
1260 case PT_LWPINFO:
1261 ptrace_lwpinfo_to32(&r.pl, &r32.pl);
1262 error = copyout(&r32.pl, uap->addr, uap->data);
1263 break;
1264 case PT_GET_SC_ARGS:
1265 for (i = 0; i < nitems(r.args); i++)
1266 r32.args[i] = (uint32_t)r.args[i];
1267 error = copyout(r32.args, uap->addr, MIN(uap->data,
1268 sizeof(r32.args)));
1269 break;
1270 case PT_GET_SC_RET:
1271 ptrace_sc_ret_to32(&r.psr, &r32.psr);
1272 error = copyout(&r32.psr, uap->addr, MIN(uap->data,
1273 sizeof(r32.psr)));
1274 break;
1275 case PT_SC_REMOTE:
1276 ptrace_sc_ret_to32(&r.sr.pscr_ret, &r32.sr.pscr_ret);
1277 error = copyout(&r32.sr.pscr_ret, uap->addr +
1278 offsetof(struct ptrace_sc_remote32, pscr_ret),
1279 sizeof(r32.psr));
1280 break;
1281 }
1282
1283 return (error);
1284 }
1285
1286 int
freebsd32_copyinuio(const struct iovec32 * iovp,u_int iovcnt,struct uio ** uiop)1287 freebsd32_copyinuio(const struct iovec32 *iovp, u_int iovcnt, struct uio **uiop)
1288 {
1289 struct iovec32 iov32;
1290 struct iovec *iov;
1291 struct uio *uio;
1292 int error, i;
1293
1294 *uiop = NULL;
1295 if (iovcnt > UIO_MAXIOV)
1296 return (EINVAL);
1297 uio = allocuio(iovcnt);
1298 iov = uio->uio_iov;
1299 for (i = 0; i < iovcnt; i++) {
1300 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32));
1301 if (error) {
1302 freeuio(uio);
1303 return (error);
1304 }
1305 iov[i].iov_base = PTRIN(iov32.iov_base);
1306 iov[i].iov_len = iov32.iov_len;
1307 }
1308 uio->uio_iovcnt = iovcnt;
1309 uio->uio_segflg = UIO_USERSPACE;
1310 uio->uio_offset = -1;
1311 uio->uio_resid = 0;
1312 for (i = 0; i < iovcnt; i++) {
1313 if (iov->iov_len > INT_MAX - uio->uio_resid) {
1314 freeuio(uio);
1315 return (EINVAL);
1316 }
1317 uio->uio_resid += iov->iov_len;
1318 iov++;
1319 }
1320 *uiop = uio;
1321 return (0);
1322 }
1323
1324 int
freebsd32_readv(struct thread * td,struct freebsd32_readv_args * uap)1325 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap)
1326 {
1327 struct uio *auio;
1328 int error;
1329
1330 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
1331 if (error)
1332 return (error);
1333 error = kern_readv(td, uap->fd, auio);
1334 freeuio(auio);
1335 return (error);
1336 }
1337
1338 int
freebsd32_writev(struct thread * td,struct freebsd32_writev_args * uap)1339 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap)
1340 {
1341 struct uio *auio;
1342 int error;
1343
1344 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
1345 if (error)
1346 return (error);
1347 error = kern_writev(td, uap->fd, auio);
1348 freeuio(auio);
1349 return (error);
1350 }
1351
1352 int
freebsd32_preadv(struct thread * td,struct freebsd32_preadv_args * uap)1353 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap)
1354 {
1355 struct uio *auio;
1356 int error;
1357
1358 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
1359 if (error)
1360 return (error);
1361 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset));
1362 freeuio(auio);
1363 return (error);
1364 }
1365
1366 int
freebsd32_pwritev(struct thread * td,struct freebsd32_pwritev_args * uap)1367 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap)
1368 {
1369 struct uio *auio;
1370 int error;
1371
1372 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
1373 if (error)
1374 return (error);
1375 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset));
1376 freeuio(auio);
1377 return (error);
1378 }
1379
1380 int
freebsd32_copyiniov(struct iovec32 * iovp32,u_int iovcnt,struct iovec ** iovp,int error)1381 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp,
1382 int error)
1383 {
1384 struct iovec32 iov32;
1385 struct iovec *iov;
1386 u_int iovlen;
1387 int i;
1388
1389 *iovp = NULL;
1390 if (iovcnt > UIO_MAXIOV)
1391 return (error);
1392 iovlen = iovcnt * sizeof(struct iovec);
1393 iov = malloc(iovlen, M_IOV, M_WAITOK);
1394 for (i = 0; i < iovcnt; i++) {
1395 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32));
1396 if (error) {
1397 free(iov, M_IOV);
1398 return (error);
1399 }
1400 iov[i].iov_base = PTRIN(iov32.iov_base);
1401 iov[i].iov_len = iov32.iov_len;
1402 }
1403 *iovp = iov;
1404 return (0);
1405 }
1406
1407 static int
freebsd32_copyinmsghdr(const struct msghdr32 * msg32,struct msghdr * msg)1408 freebsd32_copyinmsghdr(const struct msghdr32 *msg32, struct msghdr *msg)
1409 {
1410 struct msghdr32 m32;
1411 int error;
1412
1413 error = copyin(msg32, &m32, sizeof(m32));
1414 if (error)
1415 return (error);
1416 msg->msg_name = PTRIN(m32.msg_name);
1417 msg->msg_namelen = m32.msg_namelen;
1418 msg->msg_iov = PTRIN(m32.msg_iov);
1419 msg->msg_iovlen = m32.msg_iovlen;
1420 msg->msg_control = PTRIN(m32.msg_control);
1421 msg->msg_controllen = m32.msg_controllen;
1422 msg->msg_flags = m32.msg_flags;
1423 return (0);
1424 }
1425
1426 static int
freebsd32_copyoutmsghdr(struct msghdr * msg,struct msghdr32 * msg32)1427 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32)
1428 {
1429 struct msghdr32 m32;
1430 int error;
1431
1432 m32.msg_name = PTROUT(msg->msg_name);
1433 m32.msg_namelen = msg->msg_namelen;
1434 m32.msg_iov = PTROUT(msg->msg_iov);
1435 m32.msg_iovlen = msg->msg_iovlen;
1436 m32.msg_control = PTROUT(msg->msg_control);
1437 m32.msg_controllen = msg->msg_controllen;
1438 m32.msg_flags = msg->msg_flags;
1439 error = copyout(&m32, msg32, sizeof(m32));
1440 return (error);
1441 }
1442
1443 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1)
1444 #define FREEBSD32_ALIGN(p) \
1445 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES)
1446 #define FREEBSD32_CMSG_SPACE(l) \
1447 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l))
1448
1449 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \
1450 FREEBSD32_ALIGN(sizeof(struct cmsghdr)))
1451
1452 static size_t
freebsd32_cmsg_convert(const struct cmsghdr * cm,void * data,socklen_t datalen)1453 freebsd32_cmsg_convert(const struct cmsghdr *cm, void *data, socklen_t datalen)
1454 {
1455 size_t copylen;
1456 union {
1457 struct timespec32 ts;
1458 struct timeval32 tv;
1459 struct bintime32 bt;
1460 } tmp32;
1461
1462 union {
1463 struct timespec ts;
1464 struct timeval tv;
1465 struct bintime bt;
1466 } *in;
1467
1468 in = data;
1469 copylen = 0;
1470 switch (cm->cmsg_level) {
1471 case SOL_SOCKET:
1472 switch (cm->cmsg_type) {
1473 case SCM_TIMESTAMP:
1474 TV_CP(*in, tmp32, tv);
1475 copylen = sizeof(tmp32.tv);
1476 break;
1477
1478 case SCM_BINTIME:
1479 BT_CP(*in, tmp32, bt);
1480 copylen = sizeof(tmp32.bt);
1481 break;
1482
1483 case SCM_REALTIME:
1484 case SCM_MONOTONIC:
1485 TS_CP(*in, tmp32, ts);
1486 copylen = sizeof(tmp32.ts);
1487 break;
1488
1489 default:
1490 break;
1491 }
1492
1493 default:
1494 break;
1495 }
1496
1497 if (copylen == 0)
1498 return (datalen);
1499
1500 KASSERT((datalen >= copylen), ("corrupted cmsghdr"));
1501
1502 bcopy(&tmp32, data, copylen);
1503 return (copylen);
1504 }
1505
1506 static int
freebsd32_copy_msg_out(struct msghdr * msg,struct mbuf * control)1507 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control)
1508 {
1509 struct cmsghdr *cm;
1510 void *data;
1511 socklen_t clen, datalen, datalen_out, oldclen;
1512 int error;
1513 caddr_t ctlbuf;
1514 int len, copylen;
1515 struct mbuf *m;
1516 error = 0;
1517
1518 len = msg->msg_controllen;
1519 msg->msg_controllen = 0;
1520
1521 ctlbuf = msg->msg_control;
1522 for (m = control; m != NULL && len > 0; m = m->m_next) {
1523 cm = mtod(m, struct cmsghdr *);
1524 clen = m->m_len;
1525 while (cm != NULL) {
1526 if (sizeof(struct cmsghdr) > clen ||
1527 cm->cmsg_len > clen) {
1528 error = EINVAL;
1529 break;
1530 }
1531
1532 data = CMSG_DATA(cm);
1533 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data;
1534 datalen_out = freebsd32_cmsg_convert(cm, data, datalen);
1535
1536 /*
1537 * Copy out the message header. Preserve the native
1538 * message size in case we need to inspect the message
1539 * contents later.
1540 */
1541 copylen = sizeof(struct cmsghdr);
1542 if (len < copylen) {
1543 msg->msg_flags |= MSG_CTRUNC;
1544 m_dispose_extcontrolm(m);
1545 goto exit;
1546 }
1547 oldclen = cm->cmsg_len;
1548 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) +
1549 datalen_out;
1550 error = copyout(cm, ctlbuf, copylen);
1551 cm->cmsg_len = oldclen;
1552 if (error != 0)
1553 goto exit;
1554
1555 ctlbuf += FREEBSD32_ALIGN(copylen);
1556 len -= FREEBSD32_ALIGN(copylen);
1557
1558 copylen = datalen_out;
1559 if (len < copylen) {
1560 msg->msg_flags |= MSG_CTRUNC;
1561 m_dispose_extcontrolm(m);
1562 break;
1563 }
1564
1565 /* Copy out the message data. */
1566 error = copyout(data, ctlbuf, copylen);
1567 if (error)
1568 goto exit;
1569
1570 ctlbuf += FREEBSD32_ALIGN(copylen);
1571 len -= FREEBSD32_ALIGN(copylen);
1572
1573 if (CMSG_SPACE(datalen) < clen) {
1574 clen -= CMSG_SPACE(datalen);
1575 cm = (struct cmsghdr *)
1576 ((caddr_t)cm + CMSG_SPACE(datalen));
1577 } else {
1578 clen = 0;
1579 cm = NULL;
1580 }
1581
1582 msg->msg_controllen +=
1583 FREEBSD32_CMSG_SPACE(datalen_out);
1584 }
1585 }
1586 if (len == 0 && m != NULL) {
1587 msg->msg_flags |= MSG_CTRUNC;
1588 m_dispose_extcontrolm(m);
1589 }
1590
1591 exit:
1592 return (error);
1593 }
1594
1595 int
freebsd32_recvmsg(struct thread * td,struct freebsd32_recvmsg_args * uap)1596 freebsd32_recvmsg(struct thread *td, struct freebsd32_recvmsg_args *uap)
1597 {
1598 struct msghdr msg;
1599 struct iovec *uiov, *iov;
1600 struct mbuf *control = NULL;
1601 struct mbuf **controlp;
1602 int error;
1603
1604 error = freebsd32_copyinmsghdr(uap->msg, &msg);
1605 if (error)
1606 return (error);
1607 error = freebsd32_copyiniov((void *)msg.msg_iov, msg.msg_iovlen, &iov,
1608 EMSGSIZE);
1609 if (error)
1610 return (error);
1611 msg.msg_flags = uap->flags;
1612 uiov = msg.msg_iov;
1613 msg.msg_iov = iov;
1614
1615 controlp = (msg.msg_control != NULL) ? &control : NULL;
1616 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp);
1617 if (error == 0) {
1618 msg.msg_iov = uiov;
1619
1620 if (control != NULL)
1621 error = freebsd32_copy_msg_out(&msg, control);
1622 else
1623 msg.msg_controllen = 0;
1624
1625 if (error == 0)
1626 error = freebsd32_copyoutmsghdr(&msg, uap->msg);
1627 }
1628 free(iov, M_IOV);
1629
1630 if (control != NULL) {
1631 if (error != 0)
1632 m_dispose_extcontrolm(control);
1633 m_freem(control);
1634 }
1635
1636 return (error);
1637 }
1638
1639 #ifdef COMPAT_43
1640 int
ofreebsd32_recvmsg(struct thread * td,struct ofreebsd32_recvmsg_args * uap)1641 ofreebsd32_recvmsg(struct thread *td, struct ofreebsd32_recvmsg_args *uap)
1642 {
1643 return (ENOSYS);
1644 }
1645 #endif
1646
1647 /*
1648 * Copy-in the array of control messages constructed using alignment
1649 * and padding suitable for a 32-bit environment and construct an
1650 * mbuf using alignment and padding suitable for a 64-bit kernel.
1651 * The alignment and padding are defined indirectly by CMSG_DATA(),
1652 * CMSG_SPACE() and CMSG_LEN().
1653 */
1654 static int
freebsd32_copyin_control(struct mbuf ** mp,caddr_t buf,u_int buflen)1655 freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen)
1656 {
1657 struct cmsghdr *cm;
1658 struct mbuf *m;
1659 void *in, *in1, *md;
1660 u_int msglen, outlen;
1661 int error;
1662
1663 /* Enforce the size limit of the native implementation. */
1664 if (buflen > MCLBYTES)
1665 return (EINVAL);
1666
1667 in = malloc(buflen, M_TEMP, M_WAITOK);
1668 error = copyin(buf, in, buflen);
1669 if (error != 0)
1670 goto out;
1671
1672 /*
1673 * Make a pass over the input buffer to determine the amount of space
1674 * required for 64 bit-aligned copies of the control messages.
1675 */
1676 in1 = in;
1677 outlen = 0;
1678 while (buflen > 0) {
1679 if (buflen < sizeof(*cm)) {
1680 error = EINVAL;
1681 break;
1682 }
1683 cm = (struct cmsghdr *)in1;
1684 if (cm->cmsg_len < FREEBSD32_ALIGN(sizeof(*cm)) ||
1685 cm->cmsg_len > buflen) {
1686 error = EINVAL;
1687 break;
1688 }
1689 msglen = FREEBSD32_ALIGN(cm->cmsg_len);
1690 if (msglen < cm->cmsg_len) {
1691 error = EINVAL;
1692 break;
1693 }
1694 /* The native ABI permits the final padding to be omitted. */
1695 if (msglen > buflen)
1696 msglen = buflen;
1697 buflen -= msglen;
1698
1699 in1 = (char *)in1 + msglen;
1700 outlen += CMSG_ALIGN(sizeof(*cm)) +
1701 CMSG_ALIGN(msglen - FREEBSD32_ALIGN(sizeof(*cm)));
1702 }
1703 if (error != 0)
1704 goto out;
1705
1706 /*
1707 * Allocate up to MJUMPAGESIZE space for the re-aligned and
1708 * re-padded control messages. This allows a full MCLBYTES of
1709 * 32-bit sized and aligned messages to fit and avoids an ABI
1710 * mismatch with the native implementation.
1711 */
1712 m = m_get2(outlen, M_WAITOK, MT_CONTROL, 0);
1713 if (m == NULL) {
1714 error = EINVAL;
1715 goto out;
1716 }
1717 m->m_len = outlen;
1718 md = mtod(m, void *);
1719
1720 /*
1721 * Make a second pass over input messages, copying them into the output
1722 * buffer.
1723 */
1724 in1 = in;
1725 while (outlen > 0) {
1726 /* Copy the message header and align the length field. */
1727 cm = md;
1728 memcpy(cm, in1, sizeof(*cm));
1729 msglen = cm->cmsg_len - FREEBSD32_ALIGN(sizeof(*cm));
1730 cm->cmsg_len = CMSG_ALIGN(sizeof(*cm)) + msglen;
1731
1732 /* Copy the message body. */
1733 in1 = (char *)in1 + FREEBSD32_ALIGN(sizeof(*cm));
1734 md = (char *)md + CMSG_ALIGN(sizeof(*cm));
1735 memcpy(md, in1, msglen);
1736 in1 = (char *)in1 + FREEBSD32_ALIGN(msglen);
1737 md = (char *)md + CMSG_ALIGN(msglen);
1738 KASSERT(outlen >= CMSG_ALIGN(sizeof(*cm)) + CMSG_ALIGN(msglen),
1739 ("outlen %u underflow, msglen %u", outlen, msglen));
1740 outlen -= CMSG_ALIGN(sizeof(*cm)) + CMSG_ALIGN(msglen);
1741 }
1742
1743 *mp = m;
1744 out:
1745 free(in, M_TEMP);
1746 return (error);
1747 }
1748
1749 int
freebsd32_sendmsg(struct thread * td,struct freebsd32_sendmsg_args * uap)1750 freebsd32_sendmsg(struct thread *td, struct freebsd32_sendmsg_args *uap)
1751 {
1752 struct msghdr msg;
1753 struct iovec *iov;
1754 struct mbuf *control = NULL;
1755 struct sockaddr *to = NULL;
1756 int error;
1757
1758 error = freebsd32_copyinmsghdr(uap->msg, &msg);
1759 if (error)
1760 return (error);
1761 error = freebsd32_copyiniov((void *)msg.msg_iov, msg.msg_iovlen, &iov,
1762 EMSGSIZE);
1763 if (error)
1764 return (error);
1765 msg.msg_iov = iov;
1766 if (msg.msg_name != NULL) {
1767 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen);
1768 if (error) {
1769 to = NULL;
1770 goto out;
1771 }
1772 msg.msg_name = to;
1773 }
1774
1775 if (msg.msg_control) {
1776 if (msg.msg_controllen < sizeof(struct cmsghdr)) {
1777 error = EINVAL;
1778 goto out;
1779 }
1780
1781 error = freebsd32_copyin_control(&control, msg.msg_control,
1782 msg.msg_controllen);
1783 if (error)
1784 goto out;
1785
1786 msg.msg_control = NULL;
1787 msg.msg_controllen = 0;
1788 }
1789
1790 error = kern_sendit(td, uap->s, &msg, uap->flags, control,
1791 UIO_USERSPACE);
1792
1793 out:
1794 free(iov, M_IOV);
1795 if (to)
1796 free(to, M_SONAME);
1797 return (error);
1798 }
1799
1800 #ifdef COMPAT_43
1801 int
ofreebsd32_sendmsg(struct thread * td,struct ofreebsd32_sendmsg_args * uap)1802 ofreebsd32_sendmsg(struct thread *td, struct ofreebsd32_sendmsg_args *uap)
1803 {
1804 return (ENOSYS);
1805 }
1806 #endif
1807
1808
1809 int
freebsd32_settimeofday(struct thread * td,struct freebsd32_settimeofday_args * uap)1810 freebsd32_settimeofday(struct thread *td,
1811 struct freebsd32_settimeofday_args *uap)
1812 {
1813 struct timeval32 tv32;
1814 struct timeval tv, *tvp;
1815 struct timezone tz, *tzp;
1816 int error;
1817
1818 if (uap->tv) {
1819 error = copyin(uap->tv, &tv32, sizeof(tv32));
1820 if (error)
1821 return (error);
1822 CP(tv32, tv, tv_sec);
1823 CP(tv32, tv, tv_usec);
1824 tvp = &tv;
1825 } else
1826 tvp = NULL;
1827 if (uap->tzp) {
1828 error = copyin(uap->tzp, &tz, sizeof(tz));
1829 if (error)
1830 return (error);
1831 tzp = &tz;
1832 } else
1833 tzp = NULL;
1834 return (kern_settimeofday(td, tvp, tzp));
1835 }
1836
1837 int
freebsd32_utimes(struct thread * td,struct freebsd32_utimes_args * uap)1838 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap)
1839 {
1840 struct timeval32 s32[2];
1841 struct timeval s[2], *sp;
1842 int error;
1843
1844 if (uap->tptr != NULL) {
1845 error = copyin(uap->tptr, s32, sizeof(s32));
1846 if (error)
1847 return (error);
1848 CP(s32[0], s[0], tv_sec);
1849 CP(s32[0], s[0], tv_usec);
1850 CP(s32[1], s[1], tv_sec);
1851 CP(s32[1], s[1], tv_usec);
1852 sp = s;
1853 } else
1854 sp = NULL;
1855 return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE,
1856 sp, UIO_SYSSPACE));
1857 }
1858
1859 int
freebsd32_lutimes(struct thread * td,struct freebsd32_lutimes_args * uap)1860 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap)
1861 {
1862 struct timeval32 s32[2];
1863 struct timeval s[2], *sp;
1864 int error;
1865
1866 if (uap->tptr != NULL) {
1867 error = copyin(uap->tptr, s32, sizeof(s32));
1868 if (error)
1869 return (error);
1870 CP(s32[0], s[0], tv_sec);
1871 CP(s32[0], s[0], tv_usec);
1872 CP(s32[1], s[1], tv_sec);
1873 CP(s32[1], s[1], tv_usec);
1874 sp = s;
1875 } else
1876 sp = NULL;
1877 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE));
1878 }
1879
1880 int
freebsd32_futimes(struct thread * td,struct freebsd32_futimes_args * uap)1881 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap)
1882 {
1883 struct timeval32 s32[2];
1884 struct timeval s[2], *sp;
1885 int error;
1886
1887 if (uap->tptr != NULL) {
1888 error = copyin(uap->tptr, s32, sizeof(s32));
1889 if (error)
1890 return (error);
1891 CP(s32[0], s[0], tv_sec);
1892 CP(s32[0], s[0], tv_usec);
1893 CP(s32[1], s[1], tv_sec);
1894 CP(s32[1], s[1], tv_usec);
1895 sp = s;
1896 } else
1897 sp = NULL;
1898 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE));
1899 }
1900
1901 int
freebsd32_futimesat(struct thread * td,struct freebsd32_futimesat_args * uap)1902 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap)
1903 {
1904 struct timeval32 s32[2];
1905 struct timeval s[2], *sp;
1906 int error;
1907
1908 if (uap->times != NULL) {
1909 error = copyin(uap->times, s32, sizeof(s32));
1910 if (error)
1911 return (error);
1912 CP(s32[0], s[0], tv_sec);
1913 CP(s32[0], s[0], tv_usec);
1914 CP(s32[1], s[1], tv_sec);
1915 CP(s32[1], s[1], tv_usec);
1916 sp = s;
1917 } else
1918 sp = NULL;
1919 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE,
1920 sp, UIO_SYSSPACE));
1921 }
1922
1923 int
freebsd32_futimens(struct thread * td,struct freebsd32_futimens_args * uap)1924 freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap)
1925 {
1926 struct timespec32 ts32[2];
1927 struct timespec ts[2], *tsp;
1928 int error;
1929
1930 if (uap->times != NULL) {
1931 error = copyin(uap->times, ts32, sizeof(ts32));
1932 if (error)
1933 return (error);
1934 CP(ts32[0], ts[0], tv_sec);
1935 CP(ts32[0], ts[0], tv_nsec);
1936 CP(ts32[1], ts[1], tv_sec);
1937 CP(ts32[1], ts[1], tv_nsec);
1938 tsp = ts;
1939 } else
1940 tsp = NULL;
1941 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE));
1942 }
1943
1944 int
freebsd32_utimensat(struct thread * td,struct freebsd32_utimensat_args * uap)1945 freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap)
1946 {
1947 struct timespec32 ts32[2];
1948 struct timespec ts[2], *tsp;
1949 int error;
1950
1951 if (uap->times != NULL) {
1952 error = copyin(uap->times, ts32, sizeof(ts32));
1953 if (error)
1954 return (error);
1955 CP(ts32[0], ts[0], tv_sec);
1956 CP(ts32[0], ts[0], tv_nsec);
1957 CP(ts32[1], ts[1], tv_sec);
1958 CP(ts32[1], ts[1], tv_nsec);
1959 tsp = ts;
1960 } else
1961 tsp = NULL;
1962 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE,
1963 tsp, UIO_SYSSPACE, uap->flag));
1964 }
1965
1966 int
freebsd32_adjtime(struct thread * td,struct freebsd32_adjtime_args * uap)1967 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap)
1968 {
1969 struct timeval32 tv32;
1970 struct timeval delta, olddelta, *deltap;
1971 int error;
1972
1973 if (uap->delta) {
1974 error = copyin(uap->delta, &tv32, sizeof(tv32));
1975 if (error)
1976 return (error);
1977 CP(tv32, delta, tv_sec);
1978 CP(tv32, delta, tv_usec);
1979 deltap = δ
1980 } else
1981 deltap = NULL;
1982 error = kern_adjtime(td, deltap, &olddelta);
1983 if (uap->olddelta && error == 0) {
1984 CP(olddelta, tv32, tv_sec);
1985 CP(olddelta, tv32, tv_usec);
1986 error = copyout(&tv32, uap->olddelta, sizeof(tv32));
1987 }
1988 return (error);
1989 }
1990
1991 #ifdef COMPAT_FREEBSD4
1992 int
freebsd4_freebsd32_statfs(struct thread * td,struct freebsd4_freebsd32_statfs_args * uap)1993 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap)
1994 {
1995 struct ostatfs32 s32;
1996 struct statfs *sp;
1997 int error;
1998
1999 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
2000 error = kern_statfs(td, uap->path, UIO_USERSPACE, sp);
2001 if (error == 0) {
2002 copy_statfs(sp, &s32);
2003 error = copyout(&s32, uap->buf, sizeof(s32));
2004 }
2005 free(sp, M_STATFS);
2006 return (error);
2007 }
2008 #endif
2009
2010 #ifdef COMPAT_FREEBSD4
2011 int
freebsd4_freebsd32_fstatfs(struct thread * td,struct freebsd4_freebsd32_fstatfs_args * uap)2012 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap)
2013 {
2014 struct ostatfs32 s32;
2015 struct statfs *sp;
2016 int error;
2017
2018 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
2019 error = kern_fstatfs(td, uap->fd, sp);
2020 if (error == 0) {
2021 copy_statfs(sp, &s32);
2022 error = copyout(&s32, uap->buf, sizeof(s32));
2023 }
2024 free(sp, M_STATFS);
2025 return (error);
2026 }
2027 #endif
2028
2029 #ifdef COMPAT_FREEBSD4
2030 int
freebsd4_freebsd32_fhstatfs(struct thread * td,struct freebsd4_freebsd32_fhstatfs_args * uap)2031 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap)
2032 {
2033 struct ostatfs32 s32;
2034 struct statfs *sp;
2035 fhandle_t fh;
2036 int error;
2037
2038 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0)
2039 return (error);
2040 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
2041 error = kern_fhstatfs(td, fh, sp);
2042 if (error == 0) {
2043 copy_statfs(sp, &s32);
2044 error = copyout(&s32, uap->buf, sizeof(s32));
2045 }
2046 free(sp, M_STATFS);
2047 return (error);
2048 }
2049 #endif
2050
2051 int
freebsd32_pread(struct thread * td,struct freebsd32_pread_args * uap)2052 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap)
2053 {
2054
2055 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte,
2056 PAIR32TO64(off_t, uap->offset)));
2057 }
2058
2059 int
freebsd32_pwrite(struct thread * td,struct freebsd32_pwrite_args * uap)2060 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap)
2061 {
2062
2063 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte,
2064 PAIR32TO64(off_t, uap->offset)));
2065 }
2066
2067 #ifdef COMPAT_43
2068 int
ofreebsd32_lseek(struct thread * td,struct ofreebsd32_lseek_args * uap)2069 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap)
2070 {
2071
2072 return (kern_lseek(td, uap->fd, uap->offset, uap->whence));
2073 }
2074 #endif
2075
2076 int
freebsd32_lseek(struct thread * td,struct freebsd32_lseek_args * uap)2077 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap)
2078 {
2079 int error;
2080 off_t pos;
2081
2082 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset),
2083 uap->whence);
2084 /* Expand the quad return into two parts for eax and edx */
2085 pos = td->td_uretoff.tdu_off;
2086 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */
2087 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */
2088 return error;
2089 }
2090
2091 int
freebsd32_truncate(struct thread * td,struct freebsd32_truncate_args * uap)2092 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap)
2093 {
2094
2095 return (kern_truncate(td, uap->path, UIO_USERSPACE,
2096 PAIR32TO64(off_t, uap->length)));
2097 }
2098
2099 #ifdef COMPAT_43
2100 int
ofreebsd32_truncate(struct thread * td,struct ofreebsd32_truncate_args * uap)2101 ofreebsd32_truncate(struct thread *td, struct ofreebsd32_truncate_args *uap)
2102 {
2103 return (kern_truncate(td, uap->path, UIO_USERSPACE, uap->length));
2104 }
2105 #endif
2106
2107 int
freebsd32_ftruncate(struct thread * td,struct freebsd32_ftruncate_args * uap)2108 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap)
2109 {
2110
2111 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length)));
2112 }
2113
2114 #ifdef COMPAT_43
2115 int
ofreebsd32_ftruncate(struct thread * td,struct ofreebsd32_ftruncate_args * uap)2116 ofreebsd32_ftruncate(struct thread *td, struct ofreebsd32_ftruncate_args *uap)
2117 {
2118 return (kern_ftruncate(td, uap->fd, uap->length));
2119 }
2120
2121 int
ofreebsd32_getdirentries(struct thread * td,struct ofreebsd32_getdirentries_args * uap)2122 ofreebsd32_getdirentries(struct thread *td,
2123 struct ofreebsd32_getdirentries_args *uap)
2124 {
2125 struct ogetdirentries_args ap;
2126 int error;
2127 long loff;
2128 int32_t loff_cut;
2129
2130 ap.fd = uap->fd;
2131 ap.buf = uap->buf;
2132 ap.count = uap->count;
2133 ap.basep = NULL;
2134 error = kern_ogetdirentries(td, &ap, &loff);
2135 if (error == 0) {
2136 loff_cut = loff;
2137 error = copyout(&loff_cut, uap->basep, sizeof(int32_t));
2138 }
2139 return (error);
2140 }
2141 #endif
2142
2143 #if defined(COMPAT_FREEBSD11)
2144 int
freebsd11_freebsd32_getdirentries(struct thread * td,struct freebsd11_freebsd32_getdirentries_args * uap)2145 freebsd11_freebsd32_getdirentries(struct thread *td,
2146 struct freebsd11_freebsd32_getdirentries_args *uap)
2147 {
2148 long base;
2149 int32_t base32;
2150 int error;
2151
2152 error = freebsd11_kern_getdirentries(td, uap->fd, uap->buf, uap->count,
2153 &base, NULL);
2154 if (error)
2155 return (error);
2156 if (uap->basep != NULL) {
2157 base32 = base;
2158 error = copyout(&base32, uap->basep, sizeof(int32_t));
2159 }
2160 return (error);
2161 }
2162 #endif /* COMPAT_FREEBSD11 */
2163
2164 #ifdef COMPAT_FREEBSD6
2165 /* versions with the 'int pad' argument */
2166 int
freebsd6_freebsd32_pread(struct thread * td,struct freebsd6_freebsd32_pread_args * uap)2167 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap)
2168 {
2169
2170 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte,
2171 PAIR32TO64(off_t, uap->offset)));
2172 }
2173
2174 int
freebsd6_freebsd32_pwrite(struct thread * td,struct freebsd6_freebsd32_pwrite_args * uap)2175 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap)
2176 {
2177
2178 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte,
2179 PAIR32TO64(off_t, uap->offset)));
2180 }
2181
2182 int
freebsd6_freebsd32_lseek(struct thread * td,struct freebsd6_freebsd32_lseek_args * uap)2183 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap)
2184 {
2185 int error;
2186 off_t pos;
2187
2188 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset),
2189 uap->whence);
2190 /* Expand the quad return into two parts for eax and edx */
2191 pos = *(off_t *)(td->td_retval);
2192 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */
2193 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */
2194 return error;
2195 }
2196
2197 int
freebsd6_freebsd32_truncate(struct thread * td,struct freebsd6_freebsd32_truncate_args * uap)2198 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap)
2199 {
2200
2201 return (kern_truncate(td, uap->path, UIO_USERSPACE,
2202 PAIR32TO64(off_t, uap->length)));
2203 }
2204
2205 int
freebsd6_freebsd32_ftruncate(struct thread * td,struct freebsd6_freebsd32_ftruncate_args * uap)2206 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap)
2207 {
2208
2209 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length)));
2210 }
2211 #endif /* COMPAT_FREEBSD6 */
2212
2213 struct sf_hdtr32 {
2214 uint32_t headers;
2215 int hdr_cnt;
2216 uint32_t trailers;
2217 int trl_cnt;
2218 };
2219
2220 static int
freebsd32_do_sendfile(struct thread * td,struct freebsd32_sendfile_args * uap,int compat)2221 freebsd32_do_sendfile(struct thread *td,
2222 struct freebsd32_sendfile_args *uap, int compat)
2223 {
2224 struct sf_hdtr32 hdtr32;
2225 struct sf_hdtr hdtr;
2226 struct uio *hdr_uio, *trl_uio;
2227 struct file *fp;
2228 cap_rights_t rights;
2229 struct iovec32 *iov32;
2230 off_t offset, sbytes;
2231 int error;
2232
2233 offset = PAIR32TO64(off_t, uap->offset);
2234 if (offset < 0)
2235 return (EINVAL);
2236
2237 hdr_uio = trl_uio = NULL;
2238
2239 if (uap->hdtr != NULL) {
2240 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32));
2241 if (error)
2242 goto out;
2243 PTRIN_CP(hdtr32, hdtr, headers);
2244 CP(hdtr32, hdtr, hdr_cnt);
2245 PTRIN_CP(hdtr32, hdtr, trailers);
2246 CP(hdtr32, hdtr, trl_cnt);
2247
2248 if (hdtr.headers != NULL) {
2249 iov32 = PTRIN(hdtr32.headers);
2250 error = freebsd32_copyinuio(iov32,
2251 hdtr32.hdr_cnt, &hdr_uio);
2252 if (error)
2253 goto out;
2254 #ifdef COMPAT_FREEBSD4
2255 /*
2256 * In FreeBSD < 5.0 the nbytes to send also included
2257 * the header. If compat is specified subtract the
2258 * header size from nbytes.
2259 */
2260 if (compat) {
2261 if (uap->nbytes > hdr_uio->uio_resid)
2262 uap->nbytes -= hdr_uio->uio_resid;
2263 else
2264 uap->nbytes = 0;
2265 }
2266 #endif
2267 }
2268 if (hdtr.trailers != NULL) {
2269 iov32 = PTRIN(hdtr32.trailers);
2270 error = freebsd32_copyinuio(iov32,
2271 hdtr32.trl_cnt, &trl_uio);
2272 if (error)
2273 goto out;
2274 }
2275 }
2276
2277 AUDIT_ARG_FD(uap->fd);
2278
2279 if ((error = fget_read(td, uap->fd,
2280 cap_rights_init_one(&rights, CAP_PREAD), &fp)) != 0)
2281 goto out;
2282
2283 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset,
2284 uap->nbytes, &sbytes, uap->flags, td);
2285 fdrop(fp, td);
2286
2287 if (uap->sbytes != NULL)
2288 (void)copyout(&sbytes, uap->sbytes, sizeof(off_t));
2289
2290 out:
2291 if (hdr_uio)
2292 freeuio(hdr_uio);
2293 if (trl_uio)
2294 freeuio(trl_uio);
2295 return (error);
2296 }
2297
2298 #ifdef COMPAT_FREEBSD4
2299 int
freebsd4_freebsd32_sendfile(struct thread * td,struct freebsd4_freebsd32_sendfile_args * uap)2300 freebsd4_freebsd32_sendfile(struct thread *td,
2301 struct freebsd4_freebsd32_sendfile_args *uap)
2302 {
2303 return (freebsd32_do_sendfile(td,
2304 (struct freebsd32_sendfile_args *)uap, 1));
2305 }
2306 #endif
2307
2308 int
freebsd32_sendfile(struct thread * td,struct freebsd32_sendfile_args * uap)2309 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap)
2310 {
2311
2312 return (freebsd32_do_sendfile(td, uap, 0));
2313 }
2314
2315 static void
copy_stat(struct stat * in,struct stat32 * out)2316 copy_stat(struct stat *in, struct stat32 *out)
2317 {
2318
2319 #ifndef __amd64__
2320 /*
2321 * 32-bit architectures other than i386 have 64-bit time_t. This
2322 * results in struct timespec32 with 12 bytes for tv_sec and tv_nsec,
2323 * and 4 bytes of padding. Zero the padding holes in struct stat32.
2324 */
2325 bzero(&out->st_atim, sizeof(out->st_atim));
2326 bzero(&out->st_mtim, sizeof(out->st_mtim));
2327 bzero(&out->st_ctim, sizeof(out->st_ctim));
2328 bzero(&out->st_birthtim, sizeof(out->st_birthtim));
2329 #endif
2330 CP(*in, *out, st_dev);
2331 CP(*in, *out, st_ino);
2332 CP(*in, *out, st_mode);
2333 CP(*in, *out, st_nlink);
2334 CP(*in, *out, st_uid);
2335 CP(*in, *out, st_gid);
2336 CP(*in, *out, st_rdev);
2337 TS_CP(*in, *out, st_atim);
2338 TS_CP(*in, *out, st_mtim);
2339 TS_CP(*in, *out, st_ctim);
2340 CP(*in, *out, st_size);
2341 CP(*in, *out, st_blocks);
2342 CP(*in, *out, st_blksize);
2343 CP(*in, *out, st_flags);
2344 CP(*in, *out, st_gen);
2345 CP(*in, *out, st_filerev);
2346 CP(*in, *out, st_bsdflags);
2347 TS_CP(*in, *out, st_birthtim);
2348 out->st_padding1 = 0;
2349 #ifdef __STAT32_TIME_T_EXT
2350 out->st_atim_ext = 0;
2351 out->st_mtim_ext = 0;
2352 out->st_ctim_ext = 0;
2353 out->st_btim_ext = 0;
2354 #endif
2355 bzero(out->st_spare, sizeof(out->st_spare));
2356 }
2357
2358 #ifdef COMPAT_43
2359 static void
copy_ostat(struct stat * in,struct ostat32 * out)2360 copy_ostat(struct stat *in, struct ostat32 *out)
2361 {
2362
2363 bzero(out, sizeof(*out));
2364 CP(*in, *out, st_dev);
2365 CP(*in, *out, st_ino);
2366 CP(*in, *out, st_mode);
2367 CP(*in, *out, st_nlink);
2368 CP(*in, *out, st_uid);
2369 CP(*in, *out, st_gid);
2370 CP(*in, *out, st_rdev);
2371 out->st_size = MIN(in->st_size, INT32_MAX);
2372 TS_CP(*in, *out, st_atim);
2373 TS_CP(*in, *out, st_mtim);
2374 TS_CP(*in, *out, st_ctim);
2375 CP(*in, *out, st_blksize);
2376 CP(*in, *out, st_blocks);
2377 CP(*in, *out, st_flags);
2378 CP(*in, *out, st_gen);
2379 }
2380 #endif
2381
2382 #ifdef COMPAT_43
2383 int
ofreebsd32_stat(struct thread * td,struct ofreebsd32_stat_args * uap)2384 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap)
2385 {
2386 struct stat sb;
2387 struct ostat32 sb32;
2388 int error;
2389
2390 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, &sb);
2391 if (error)
2392 return (error);
2393 copy_ostat(&sb, &sb32);
2394 error = copyout(&sb32, uap->ub, sizeof (sb32));
2395 return (error);
2396 }
2397 #endif
2398
2399 int
freebsd32_fstat(struct thread * td,struct freebsd32_fstat_args * uap)2400 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap)
2401 {
2402 struct stat ub;
2403 struct stat32 ub32;
2404 int error;
2405
2406 error = kern_fstat(td, uap->fd, &ub);
2407 if (error)
2408 return (error);
2409 copy_stat(&ub, &ub32);
2410 error = copyout(&ub32, uap->sb, sizeof(ub32));
2411 return (error);
2412 }
2413
2414 #ifdef COMPAT_43
2415 int
ofreebsd32_fstat(struct thread * td,struct ofreebsd32_fstat_args * uap)2416 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap)
2417 {
2418 struct stat ub;
2419 struct ostat32 ub32;
2420 int error;
2421
2422 error = kern_fstat(td, uap->fd, &ub);
2423 if (error)
2424 return (error);
2425 copy_ostat(&ub, &ub32);
2426 error = copyout(&ub32, uap->sb, sizeof(ub32));
2427 return (error);
2428 }
2429 #endif
2430
2431 int
freebsd32_fstatat(struct thread * td,struct freebsd32_fstatat_args * uap)2432 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap)
2433 {
2434 struct stat ub;
2435 struct stat32 ub32;
2436 int error;
2437
2438 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE,
2439 &ub);
2440 if (error)
2441 return (error);
2442 copy_stat(&ub, &ub32);
2443 error = copyout(&ub32, uap->buf, sizeof(ub32));
2444 return (error);
2445 }
2446
2447 #ifdef COMPAT_43
2448 int
ofreebsd32_lstat(struct thread * td,struct ofreebsd32_lstat_args * uap)2449 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap)
2450 {
2451 struct stat sb;
2452 struct ostat32 sb32;
2453 int error;
2454
2455 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path,
2456 UIO_USERSPACE, &sb);
2457 if (error)
2458 return (error);
2459 copy_ostat(&sb, &sb32);
2460 error = copyout(&sb32, uap->ub, sizeof (sb32));
2461 return (error);
2462 }
2463 #endif
2464
2465 int
freebsd32_fhstat(struct thread * td,struct freebsd32_fhstat_args * uap)2466 freebsd32_fhstat(struct thread *td, struct freebsd32_fhstat_args *uap)
2467 {
2468 struct stat sb;
2469 struct stat32 sb32;
2470 struct fhandle fh;
2471 int error;
2472
2473 error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t));
2474 if (error != 0)
2475 return (error);
2476 error = kern_fhstat(td, fh, &sb);
2477 if (error != 0)
2478 return (error);
2479 copy_stat(&sb, &sb32);
2480 error = copyout(&sb32, uap->sb, sizeof (sb32));
2481 return (error);
2482 }
2483
2484 #if defined(COMPAT_FREEBSD11)
2485 extern int ino64_trunc_error;
2486
2487 static int
freebsd11_cvtstat32(struct stat * in,struct freebsd11_stat32 * out)2488 freebsd11_cvtstat32(struct stat *in, struct freebsd11_stat32 *out)
2489 {
2490
2491 #ifndef __amd64__
2492 /*
2493 * 32-bit architectures other than i386 have 64-bit time_t. This
2494 * results in struct timespec32 with 12 bytes for tv_sec and tv_nsec,
2495 * and 4 bytes of padding. Zero the padding holes in freebsd11_stat32.
2496 */
2497 bzero(&out->st_atim, sizeof(out->st_atim));
2498 bzero(&out->st_mtim, sizeof(out->st_mtim));
2499 bzero(&out->st_ctim, sizeof(out->st_ctim));
2500 bzero(&out->st_birthtim, sizeof(out->st_birthtim));
2501 #endif
2502
2503 CP(*in, *out, st_ino);
2504 if (in->st_ino != out->st_ino) {
2505 switch (ino64_trunc_error) {
2506 default:
2507 case 0:
2508 break;
2509 case 1:
2510 return (EOVERFLOW);
2511 case 2:
2512 out->st_ino = UINT32_MAX;
2513 break;
2514 }
2515 }
2516 CP(*in, *out, st_nlink);
2517 if (in->st_nlink != out->st_nlink) {
2518 switch (ino64_trunc_error) {
2519 default:
2520 case 0:
2521 break;
2522 case 1:
2523 return (EOVERFLOW);
2524 case 2:
2525 out->st_nlink = UINT16_MAX;
2526 break;
2527 }
2528 }
2529 out->st_dev = in->st_dev;
2530 if (out->st_dev != in->st_dev) {
2531 switch (ino64_trunc_error) {
2532 default:
2533 break;
2534 case 1:
2535 return (EOVERFLOW);
2536 }
2537 }
2538 CP(*in, *out, st_mode);
2539 CP(*in, *out, st_uid);
2540 CP(*in, *out, st_gid);
2541 out->st_rdev = in->st_rdev;
2542 if (out->st_rdev != in->st_rdev) {
2543 switch (ino64_trunc_error) {
2544 default:
2545 break;
2546 case 1:
2547 return (EOVERFLOW);
2548 }
2549 }
2550 TS_CP(*in, *out, st_atim);
2551 TS_CP(*in, *out, st_mtim);
2552 TS_CP(*in, *out, st_ctim);
2553 CP(*in, *out, st_size);
2554 CP(*in, *out, st_blocks);
2555 CP(*in, *out, st_blksize);
2556 CP(*in, *out, st_flags);
2557 CP(*in, *out, st_gen);
2558 TS_CP(*in, *out, st_birthtim);
2559 out->st_lspare = 0;
2560 bzero((char *)&out->st_birthtim + sizeof(out->st_birthtim),
2561 sizeof(*out) - offsetof(struct freebsd11_stat32,
2562 st_birthtim) - sizeof(out->st_birthtim));
2563 return (0);
2564 }
2565
2566 int
freebsd11_freebsd32_stat(struct thread * td,struct freebsd11_freebsd32_stat_args * uap)2567 freebsd11_freebsd32_stat(struct thread *td,
2568 struct freebsd11_freebsd32_stat_args *uap)
2569 {
2570 struct stat sb;
2571 struct freebsd11_stat32 sb32;
2572 int error;
2573
2574 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, &sb);
2575 if (error != 0)
2576 return (error);
2577 error = freebsd11_cvtstat32(&sb, &sb32);
2578 if (error == 0)
2579 error = copyout(&sb32, uap->ub, sizeof (sb32));
2580 return (error);
2581 }
2582
2583 int
freebsd11_freebsd32_fstat(struct thread * td,struct freebsd11_freebsd32_fstat_args * uap)2584 freebsd11_freebsd32_fstat(struct thread *td,
2585 struct freebsd11_freebsd32_fstat_args *uap)
2586 {
2587 struct stat sb;
2588 struct freebsd11_stat32 sb32;
2589 int error;
2590
2591 error = kern_fstat(td, uap->fd, &sb);
2592 if (error != 0)
2593 return (error);
2594 error = freebsd11_cvtstat32(&sb, &sb32);
2595 if (error == 0)
2596 error = copyout(&sb32, uap->sb, sizeof (sb32));
2597 return (error);
2598 }
2599
2600 int
freebsd11_freebsd32_fstatat(struct thread * td,struct freebsd11_freebsd32_fstatat_args * uap)2601 freebsd11_freebsd32_fstatat(struct thread *td,
2602 struct freebsd11_freebsd32_fstatat_args *uap)
2603 {
2604 struct stat sb;
2605 struct freebsd11_stat32 sb32;
2606 int error;
2607
2608 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE,
2609 &sb);
2610 if (error != 0)
2611 return (error);
2612 error = freebsd11_cvtstat32(&sb, &sb32);
2613 if (error == 0)
2614 error = copyout(&sb32, uap->buf, sizeof (sb32));
2615 return (error);
2616 }
2617
2618 int
freebsd11_freebsd32_lstat(struct thread * td,struct freebsd11_freebsd32_lstat_args * uap)2619 freebsd11_freebsd32_lstat(struct thread *td,
2620 struct freebsd11_freebsd32_lstat_args *uap)
2621 {
2622 struct stat sb;
2623 struct freebsd11_stat32 sb32;
2624 int error;
2625
2626 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path,
2627 UIO_USERSPACE, &sb);
2628 if (error != 0)
2629 return (error);
2630 error = freebsd11_cvtstat32(&sb, &sb32);
2631 if (error == 0)
2632 error = copyout(&sb32, uap->ub, sizeof (sb32));
2633 return (error);
2634 }
2635
2636 int
freebsd11_freebsd32_fhstat(struct thread * td,struct freebsd11_freebsd32_fhstat_args * uap)2637 freebsd11_freebsd32_fhstat(struct thread *td,
2638 struct freebsd11_freebsd32_fhstat_args *uap)
2639 {
2640 struct stat sb;
2641 struct freebsd11_stat32 sb32;
2642 struct fhandle fh;
2643 int error;
2644
2645 error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t));
2646 if (error != 0)
2647 return (error);
2648 error = kern_fhstat(td, fh, &sb);
2649 if (error != 0)
2650 return (error);
2651 error = freebsd11_cvtstat32(&sb, &sb32);
2652 if (error == 0)
2653 error = copyout(&sb32, uap->sb, sizeof (sb32));
2654 return (error);
2655 }
2656
2657 static int
freebsd11_cvtnstat32(struct stat * sb,struct nstat32 * nsb32)2658 freebsd11_cvtnstat32(struct stat *sb, struct nstat32 *nsb32)
2659 {
2660 struct nstat nsb;
2661 int error;
2662
2663 error = freebsd11_cvtnstat(sb, &nsb);
2664 if (error != 0)
2665 return (error);
2666
2667 bzero(nsb32, sizeof(*nsb32));
2668 CP(nsb, *nsb32, st_dev);
2669 CP(nsb, *nsb32, st_ino);
2670 CP(nsb, *nsb32, st_mode);
2671 CP(nsb, *nsb32, st_nlink);
2672 CP(nsb, *nsb32, st_uid);
2673 CP(nsb, *nsb32, st_gid);
2674 CP(nsb, *nsb32, st_rdev);
2675 CP(nsb, *nsb32, st_atim.tv_sec);
2676 CP(nsb, *nsb32, st_atim.tv_nsec);
2677 CP(nsb, *nsb32, st_mtim.tv_sec);
2678 CP(nsb, *nsb32, st_mtim.tv_nsec);
2679 CP(nsb, *nsb32, st_ctim.tv_sec);
2680 CP(nsb, *nsb32, st_ctim.tv_nsec);
2681 CP(nsb, *nsb32, st_size);
2682 CP(nsb, *nsb32, st_blocks);
2683 CP(nsb, *nsb32, st_blksize);
2684 CP(nsb, *nsb32, st_flags);
2685 CP(nsb, *nsb32, st_gen);
2686 CP(nsb, *nsb32, st_birthtim.tv_sec);
2687 CP(nsb, *nsb32, st_birthtim.tv_nsec);
2688 return (0);
2689 }
2690
2691 int
freebsd11_freebsd32_nstat(struct thread * td,struct freebsd11_freebsd32_nstat_args * uap)2692 freebsd11_freebsd32_nstat(struct thread *td,
2693 struct freebsd11_freebsd32_nstat_args *uap)
2694 {
2695 struct stat sb;
2696 struct nstat32 nsb;
2697 int error;
2698
2699 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, &sb);
2700 if (error != 0)
2701 return (error);
2702 error = freebsd11_cvtnstat32(&sb, &nsb);
2703 if (error != 0)
2704 error = copyout(&nsb, uap->ub, sizeof (nsb));
2705 return (error);
2706 }
2707
2708 int
freebsd11_freebsd32_nlstat(struct thread * td,struct freebsd11_freebsd32_nlstat_args * uap)2709 freebsd11_freebsd32_nlstat(struct thread *td,
2710 struct freebsd11_freebsd32_nlstat_args *uap)
2711 {
2712 struct stat sb;
2713 struct nstat32 nsb;
2714 int error;
2715
2716 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path,
2717 UIO_USERSPACE, &sb);
2718 if (error != 0)
2719 return (error);
2720 error = freebsd11_cvtnstat32(&sb, &nsb);
2721 if (error == 0)
2722 error = copyout(&nsb, uap->ub, sizeof (nsb));
2723 return (error);
2724 }
2725
2726 int
freebsd11_freebsd32_nfstat(struct thread * td,struct freebsd11_freebsd32_nfstat_args * uap)2727 freebsd11_freebsd32_nfstat(struct thread *td,
2728 struct freebsd11_freebsd32_nfstat_args *uap)
2729 {
2730 struct nstat32 nub;
2731 struct stat ub;
2732 int error;
2733
2734 error = kern_fstat(td, uap->fd, &ub);
2735 if (error != 0)
2736 return (error);
2737 error = freebsd11_cvtnstat32(&ub, &nub);
2738 if (error == 0)
2739 error = copyout(&nub, uap->sb, sizeof(nub));
2740 return (error);
2741 }
2742 #endif
2743
2744 int
freebsd32___sysctl(struct thread * td,struct freebsd32___sysctl_args * uap)2745 freebsd32___sysctl(struct thread *td, struct freebsd32___sysctl_args *uap)
2746 {
2747 int error, name[CTL_MAXNAME];
2748 size_t j, oldlen;
2749 uint32_t tmp;
2750
2751 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2)
2752 return (EINVAL);
2753 error = copyin(uap->name, name, uap->namelen * sizeof(int));
2754 if (error)
2755 return (error);
2756 if (uap->oldlenp) {
2757 error = fueword32(uap->oldlenp, &tmp);
2758 oldlen = tmp;
2759 } else {
2760 oldlen = 0;
2761 }
2762 if (error != 0)
2763 return (EFAULT);
2764 error = userland_sysctl(td, name, uap->namelen,
2765 uap->old, &oldlen, 1,
2766 uap->new, uap->newlen, &j, SCTL_MASK32);
2767 if (error)
2768 return (error);
2769 if (uap->oldlenp != NULL && suword32(uap->oldlenp, j) != 0)
2770 error = EFAULT;
2771 return (error);
2772 }
2773
2774 int
freebsd32___sysctlbyname(struct thread * td,struct freebsd32___sysctlbyname_args * uap)2775 freebsd32___sysctlbyname(struct thread *td,
2776 struct freebsd32___sysctlbyname_args *uap)
2777 {
2778 size_t oldlen, rv;
2779 int error;
2780 uint32_t tmp;
2781
2782 if (uap->oldlenp != NULL) {
2783 error = fueword32(uap->oldlenp, &tmp);
2784 oldlen = tmp;
2785 } else {
2786 error = oldlen = 0;
2787 }
2788 if (error != 0)
2789 return (EFAULT);
2790 error = kern___sysctlbyname(td, uap->name, uap->namelen, uap->old,
2791 &oldlen, uap->new, uap->newlen, &rv, SCTL_MASK32, 1);
2792 if (error != 0)
2793 return (error);
2794 if (uap->oldlenp != NULL && suword32(uap->oldlenp, rv) != 0)
2795 error = EFAULT;
2796 return (error);
2797 }
2798
2799 int
freebsd32_jail(struct thread * td,struct freebsd32_jail_args * uap)2800 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap)
2801 {
2802 uint32_t version;
2803 int error;
2804 struct jail j;
2805
2806 error = copyin(uap->jail, &version, sizeof(uint32_t));
2807 if (error)
2808 return (error);
2809
2810 switch (version) {
2811 case 0:
2812 {
2813 /* FreeBSD single IPv4 jails. */
2814 struct jail32_v0 j32_v0;
2815
2816 bzero(&j, sizeof(struct jail));
2817 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0));
2818 if (error)
2819 return (error);
2820 CP(j32_v0, j, version);
2821 PTRIN_CP(j32_v0, j, path);
2822 PTRIN_CP(j32_v0, j, hostname);
2823 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */
2824 break;
2825 }
2826
2827 case 1:
2828 /*
2829 * Version 1 was used by multi-IPv4 jail implementations
2830 * that never made it into the official kernel.
2831 */
2832 return (EINVAL);
2833
2834 case 2: /* JAIL_API_VERSION */
2835 {
2836 /* FreeBSD multi-IPv4/IPv6,noIP jails. */
2837 struct jail32 j32;
2838
2839 error = copyin(uap->jail, &j32, sizeof(struct jail32));
2840 if (error)
2841 return (error);
2842 CP(j32, j, version);
2843 PTRIN_CP(j32, j, path);
2844 PTRIN_CP(j32, j, hostname);
2845 PTRIN_CP(j32, j, jailname);
2846 CP(j32, j, ip4s);
2847 CP(j32, j, ip6s);
2848 PTRIN_CP(j32, j, ip4);
2849 PTRIN_CP(j32, j, ip6);
2850 break;
2851 }
2852
2853 default:
2854 /* Sci-Fi jails are not supported, sorry. */
2855 return (EINVAL);
2856 }
2857 return (kern_jail(td, &j));
2858 }
2859
2860 int
freebsd32_jail_set(struct thread * td,struct freebsd32_jail_set_args * uap)2861 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap)
2862 {
2863 struct uio *auio;
2864 int error;
2865
2866 /* Check that we have an even number of iovecs. */
2867 if (uap->iovcnt & 1)
2868 return (EINVAL);
2869
2870 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
2871 if (error)
2872 return (error);
2873 error = kern_jail_set(td, auio, uap->flags);
2874 freeuio(auio);
2875 return (error);
2876 }
2877
2878 int
freebsd32_jail_get(struct thread * td,struct freebsd32_jail_get_args * uap)2879 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap)
2880 {
2881 struct iovec32 iov32;
2882 struct uio *auio;
2883 int error, i;
2884
2885 /* Check that we have an even number of iovecs. */
2886 if (uap->iovcnt & 1)
2887 return (EINVAL);
2888
2889 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
2890 if (error)
2891 return (error);
2892 error = kern_jail_get(td, auio, uap->flags);
2893 if (error == 0)
2894 for (i = 0; i < uap->iovcnt; i++) {
2895 PTROUT_CP(auio->uio_iov[i], iov32, iov_base);
2896 CP(auio->uio_iov[i], iov32, iov_len);
2897 error = copyout(&iov32, uap->iovp + i, sizeof(iov32));
2898 if (error != 0)
2899 break;
2900 }
2901 freeuio(auio);
2902 return (error);
2903 }
2904
2905 int
freebsd32_sigaction(struct thread * td,struct freebsd32_sigaction_args * uap)2906 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap)
2907 {
2908 struct sigaction32 s32;
2909 struct sigaction sa, osa, *sap;
2910 int error;
2911
2912 if (uap->act) {
2913 error = copyin(uap->act, &s32, sizeof(s32));
2914 if (error)
2915 return (error);
2916 sa.sa_handler = PTRIN(s32.sa_u);
2917 CP(s32, sa, sa_flags);
2918 CP(s32, sa, sa_mask);
2919 sap = &sa;
2920 } else
2921 sap = NULL;
2922 error = kern_sigaction(td, uap->sig, sap, &osa, 0);
2923 if (error == 0 && uap->oact != NULL) {
2924 s32.sa_u = PTROUT(osa.sa_handler);
2925 CP(osa, s32, sa_flags);
2926 CP(osa, s32, sa_mask);
2927 error = copyout(&s32, uap->oact, sizeof(s32));
2928 }
2929 return (error);
2930 }
2931
2932 #ifdef COMPAT_FREEBSD4
2933 int
freebsd4_freebsd32_sigaction(struct thread * td,struct freebsd4_freebsd32_sigaction_args * uap)2934 freebsd4_freebsd32_sigaction(struct thread *td,
2935 struct freebsd4_freebsd32_sigaction_args *uap)
2936 {
2937 struct sigaction32 s32;
2938 struct sigaction sa, osa, *sap;
2939 int error;
2940
2941 if (uap->act) {
2942 error = copyin(uap->act, &s32, sizeof(s32));
2943 if (error)
2944 return (error);
2945 sa.sa_handler = PTRIN(s32.sa_u);
2946 CP(s32, sa, sa_flags);
2947 CP(s32, sa, sa_mask);
2948 sap = &sa;
2949 } else
2950 sap = NULL;
2951 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4);
2952 if (error == 0 && uap->oact != NULL) {
2953 s32.sa_u = PTROUT(osa.sa_handler);
2954 CP(osa, s32, sa_flags);
2955 CP(osa, s32, sa_mask);
2956 error = copyout(&s32, uap->oact, sizeof(s32));
2957 }
2958 return (error);
2959 }
2960 #endif
2961
2962 #ifdef COMPAT_43
2963 struct osigaction32 {
2964 uint32_t sa_u;
2965 osigset_t sa_mask;
2966 int sa_flags;
2967 };
2968
2969 #define ONSIG 32
2970
2971 int
ofreebsd32_sigaction(struct thread * td,struct ofreebsd32_sigaction_args * uap)2972 ofreebsd32_sigaction(struct thread *td,
2973 struct ofreebsd32_sigaction_args *uap)
2974 {
2975 struct osigaction32 s32;
2976 struct sigaction sa, osa, *sap;
2977 int error;
2978
2979 if (uap->signum <= 0 || uap->signum >= ONSIG)
2980 return (EINVAL);
2981
2982 if (uap->nsa) {
2983 error = copyin(uap->nsa, &s32, sizeof(s32));
2984 if (error)
2985 return (error);
2986 sa.sa_handler = PTRIN(s32.sa_u);
2987 CP(s32, sa, sa_flags);
2988 OSIG2SIG(s32.sa_mask, sa.sa_mask);
2989 sap = &sa;
2990 } else
2991 sap = NULL;
2992 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET);
2993 if (error == 0 && uap->osa != NULL) {
2994 s32.sa_u = PTROUT(osa.sa_handler);
2995 CP(osa, s32, sa_flags);
2996 SIG2OSIG(osa.sa_mask, s32.sa_mask);
2997 error = copyout(&s32, uap->osa, sizeof(s32));
2998 }
2999 return (error);
3000 }
3001
3002 struct sigvec32 {
3003 uint32_t sv_handler;
3004 int sv_mask;
3005 int sv_flags;
3006 };
3007
3008 int
ofreebsd32_sigvec(struct thread * td,struct ofreebsd32_sigvec_args * uap)3009 ofreebsd32_sigvec(struct thread *td,
3010 struct ofreebsd32_sigvec_args *uap)
3011 {
3012 struct sigvec32 vec;
3013 struct sigaction sa, osa, *sap;
3014 int error;
3015
3016 if (uap->signum <= 0 || uap->signum >= ONSIG)
3017 return (EINVAL);
3018
3019 if (uap->nsv) {
3020 error = copyin(uap->nsv, &vec, sizeof(vec));
3021 if (error)
3022 return (error);
3023 sa.sa_handler = PTRIN(vec.sv_handler);
3024 OSIG2SIG(vec.sv_mask, sa.sa_mask);
3025 sa.sa_flags = vec.sv_flags;
3026 sa.sa_flags ^= SA_RESTART;
3027 sap = &sa;
3028 } else
3029 sap = NULL;
3030 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET);
3031 if (error == 0 && uap->osv != NULL) {
3032 vec.sv_handler = PTROUT(osa.sa_handler);
3033 SIG2OSIG(osa.sa_mask, vec.sv_mask);
3034 vec.sv_flags = osa.sa_flags;
3035 vec.sv_flags &= ~SA_NOCLDWAIT;
3036 vec.sv_flags ^= SA_RESTART;
3037 error = copyout(&vec, uap->osv, sizeof(vec));
3038 }
3039 return (error);
3040 }
3041
3042 struct sigstack32 {
3043 uint32_t ss_sp;
3044 int ss_onstack;
3045 };
3046
3047 int
ofreebsd32_sigstack(struct thread * td,struct ofreebsd32_sigstack_args * uap)3048 ofreebsd32_sigstack(struct thread *td,
3049 struct ofreebsd32_sigstack_args *uap)
3050 {
3051 struct sigstack32 s32;
3052 struct sigstack nss, oss;
3053 int error = 0, unss;
3054
3055 if (uap->nss != NULL) {
3056 error = copyin(uap->nss, &s32, sizeof(s32));
3057 if (error)
3058 return (error);
3059 nss.ss_sp = PTRIN(s32.ss_sp);
3060 CP(s32, nss, ss_onstack);
3061 unss = 1;
3062 } else {
3063 unss = 0;
3064 }
3065 oss.ss_sp = td->td_sigstk.ss_sp;
3066 oss.ss_onstack = sigonstack(cpu_getstack(td));
3067 if (unss) {
3068 td->td_sigstk.ss_sp = nss.ss_sp;
3069 td->td_sigstk.ss_size = 0;
3070 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK);
3071 td->td_pflags |= TDP_ALTSTACK;
3072 }
3073 if (uap->oss != NULL) {
3074 s32.ss_sp = PTROUT(oss.ss_sp);
3075 CP(oss, s32, ss_onstack);
3076 error = copyout(&s32, uap->oss, sizeof(s32));
3077 }
3078 return (error);
3079 }
3080 #endif
3081
3082 int
freebsd32_nanosleep(struct thread * td,struct freebsd32_nanosleep_args * uap)3083 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap)
3084 {
3085
3086 return (freebsd32_user_clock_nanosleep(td, CLOCK_REALTIME,
3087 TIMER_RELTIME, uap->rqtp, uap->rmtp));
3088 }
3089
3090 int
freebsd32_clock_nanosleep(struct thread * td,struct freebsd32_clock_nanosleep_args * uap)3091 freebsd32_clock_nanosleep(struct thread *td,
3092 struct freebsd32_clock_nanosleep_args *uap)
3093 {
3094 int error;
3095
3096 error = freebsd32_user_clock_nanosleep(td, uap->clock_id, uap->flags,
3097 uap->rqtp, uap->rmtp);
3098 return (kern_posix_error(td, error));
3099 }
3100
3101 static int
freebsd32_user_clock_nanosleep(struct thread * td,clockid_t clock_id,int flags,const struct timespec32 * ua_rqtp,struct timespec32 * ua_rmtp)3102 freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id,
3103 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp)
3104 {
3105 struct timespec32 rmt32, rqt32;
3106 struct timespec rmt, rqt;
3107 int error, error2;
3108
3109 error = copyin(ua_rqtp, &rqt32, sizeof(rqt32));
3110 if (error)
3111 return (error);
3112
3113 CP(rqt32, rqt, tv_sec);
3114 CP(rqt32, rqt, tv_nsec);
3115
3116 error = kern_clock_nanosleep(td, clock_id, flags, &rqt, &rmt);
3117 if (error == EINTR && ua_rmtp != NULL && (flags & TIMER_ABSTIME) == 0) {
3118 CP(rmt, rmt32, tv_sec);
3119 CP(rmt, rmt32, tv_nsec);
3120
3121 error2 = copyout(&rmt32, ua_rmtp, sizeof(rmt32));
3122 if (error2 != 0)
3123 error = error2;
3124 }
3125 return (error);
3126 }
3127
3128 int
freebsd32_clock_gettime(struct thread * td,struct freebsd32_clock_gettime_args * uap)3129 freebsd32_clock_gettime(struct thread *td,
3130 struct freebsd32_clock_gettime_args *uap)
3131 {
3132 struct timespec ats;
3133 struct timespec32 ats32;
3134 int error;
3135
3136 error = kern_clock_gettime(td, uap->clock_id, &ats);
3137 if (error == 0) {
3138 CP(ats, ats32, tv_sec);
3139 CP(ats, ats32, tv_nsec);
3140 error = copyout(&ats32, uap->tp, sizeof(ats32));
3141 }
3142 return (error);
3143 }
3144
3145 int
freebsd32_clock_settime(struct thread * td,struct freebsd32_clock_settime_args * uap)3146 freebsd32_clock_settime(struct thread *td,
3147 struct freebsd32_clock_settime_args *uap)
3148 {
3149 struct timespec ats;
3150 struct timespec32 ats32;
3151 int error;
3152
3153 error = copyin(uap->tp, &ats32, sizeof(ats32));
3154 if (error)
3155 return (error);
3156 CP(ats32, ats, tv_sec);
3157 CP(ats32, ats, tv_nsec);
3158
3159 return (kern_clock_settime(td, uap->clock_id, &ats));
3160 }
3161
3162 int
freebsd32_clock_getres(struct thread * td,struct freebsd32_clock_getres_args * uap)3163 freebsd32_clock_getres(struct thread *td,
3164 struct freebsd32_clock_getres_args *uap)
3165 {
3166 struct timespec ts;
3167 struct timespec32 ts32;
3168 int error;
3169
3170 if (uap->tp == NULL)
3171 return (0);
3172 error = kern_clock_getres(td, uap->clock_id, &ts);
3173 if (error == 0) {
3174 CP(ts, ts32, tv_sec);
3175 CP(ts, ts32, tv_nsec);
3176 error = copyout(&ts32, uap->tp, sizeof(ts32));
3177 }
3178 return (error);
3179 }
3180
freebsd32_ktimer_create(struct thread * td,struct freebsd32_ktimer_create_args * uap)3181 int freebsd32_ktimer_create(struct thread *td,
3182 struct freebsd32_ktimer_create_args *uap)
3183 {
3184 struct sigevent32 ev32;
3185 struct sigevent ev, *evp;
3186 int error, id;
3187
3188 if (uap->evp == NULL) {
3189 evp = NULL;
3190 } else {
3191 evp = &ev;
3192 error = copyin(uap->evp, &ev32, sizeof(ev32));
3193 if (error != 0)
3194 return (error);
3195 error = convert_sigevent32(&ev32, &ev);
3196 if (error != 0)
3197 return (error);
3198 }
3199 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1);
3200 if (error == 0) {
3201 error = copyout(&id, uap->timerid, sizeof(int));
3202 if (error != 0)
3203 kern_ktimer_delete(td, id);
3204 }
3205 return (error);
3206 }
3207
3208 int
freebsd32_ktimer_settime(struct thread * td,struct freebsd32_ktimer_settime_args * uap)3209 freebsd32_ktimer_settime(struct thread *td,
3210 struct freebsd32_ktimer_settime_args *uap)
3211 {
3212 struct itimerspec32 val32, oval32;
3213 struct itimerspec val, oval, *ovalp;
3214 int error;
3215
3216 error = copyin(uap->value, &val32, sizeof(val32));
3217 if (error != 0)
3218 return (error);
3219 ITS_CP(val32, val);
3220 ovalp = uap->ovalue != NULL ? &oval : NULL;
3221 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp);
3222 if (error == 0 && uap->ovalue != NULL) {
3223 ITS_CP(oval, oval32);
3224 error = copyout(&oval32, uap->ovalue, sizeof(oval32));
3225 }
3226 return (error);
3227 }
3228
3229 int
freebsd32_ktimer_gettime(struct thread * td,struct freebsd32_ktimer_gettime_args * uap)3230 freebsd32_ktimer_gettime(struct thread *td,
3231 struct freebsd32_ktimer_gettime_args *uap)
3232 {
3233 struct itimerspec32 val32;
3234 struct itimerspec val;
3235 int error;
3236
3237 error = kern_ktimer_gettime(td, uap->timerid, &val);
3238 if (error == 0) {
3239 ITS_CP(val, val32);
3240 error = copyout(&val32, uap->value, sizeof(val32));
3241 }
3242 return (error);
3243 }
3244
3245 int
freebsd32_timerfd_gettime(struct thread * td,struct freebsd32_timerfd_gettime_args * uap)3246 freebsd32_timerfd_gettime(struct thread *td,
3247 struct freebsd32_timerfd_gettime_args *uap)
3248 {
3249 struct itimerspec curr_value;
3250 struct itimerspec32 curr_value32;
3251 int error;
3252
3253 error = kern_timerfd_gettime(td, uap->fd, &curr_value);
3254 if (error == 0) {
3255 CP(curr_value, curr_value32, it_value.tv_sec);
3256 CP(curr_value, curr_value32, it_value.tv_nsec);
3257 CP(curr_value, curr_value32, it_interval.tv_sec);
3258 CP(curr_value, curr_value32, it_interval.tv_nsec);
3259 error = copyout(&curr_value32, uap->curr_value,
3260 sizeof(curr_value32));
3261 }
3262
3263 return (error);
3264 }
3265
3266 int
freebsd32_timerfd_settime(struct thread * td,struct freebsd32_timerfd_settime_args * uap)3267 freebsd32_timerfd_settime(struct thread *td,
3268 struct freebsd32_timerfd_settime_args *uap)
3269 {
3270 struct itimerspec new_value, old_value;
3271 struct itimerspec32 new_value32, old_value32;
3272 int error;
3273
3274 error = copyin(uap->new_value, &new_value32, sizeof(new_value32));
3275 if (error != 0)
3276 return (error);
3277 CP(new_value32, new_value, it_value.tv_sec);
3278 CP(new_value32, new_value, it_value.tv_nsec);
3279 CP(new_value32, new_value, it_interval.tv_sec);
3280 CP(new_value32, new_value, it_interval.tv_nsec);
3281 if (uap->old_value == NULL) {
3282 error = kern_timerfd_settime(td, uap->fd, uap->flags,
3283 &new_value, NULL);
3284 } else {
3285 error = kern_timerfd_settime(td, uap->fd, uap->flags,
3286 &new_value, &old_value);
3287 if (error == 0) {
3288 CP(old_value, old_value32, it_value.tv_sec);
3289 CP(old_value, old_value32, it_value.tv_nsec);
3290 CP(old_value, old_value32, it_interval.tv_sec);
3291 CP(old_value, old_value32, it_interval.tv_nsec);
3292 error = copyout(&old_value32, uap->old_value,
3293 sizeof(old_value32));
3294 }
3295 }
3296 return (error);
3297 }
3298
3299 int
freebsd32_clock_getcpuclockid2(struct thread * td,struct freebsd32_clock_getcpuclockid2_args * uap)3300 freebsd32_clock_getcpuclockid2(struct thread *td,
3301 struct freebsd32_clock_getcpuclockid2_args *uap)
3302 {
3303 clockid_t clk_id;
3304 int error;
3305
3306 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id),
3307 uap->which, &clk_id);
3308 if (error == 0)
3309 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t));
3310 return (error);
3311 }
3312
3313 int
freebsd32_thr_new(struct thread * td,struct freebsd32_thr_new_args * uap)3314 freebsd32_thr_new(struct thread *td,
3315 struct freebsd32_thr_new_args *uap)
3316 {
3317 struct thr_param32 param32;
3318 struct thr_param param;
3319 int error;
3320
3321 if (uap->param_size < 0 ||
3322 uap->param_size > sizeof(struct thr_param32))
3323 return (EINVAL);
3324 bzero(¶m, sizeof(struct thr_param));
3325 bzero(¶m32, sizeof(struct thr_param32));
3326 error = copyin(uap->param, ¶m32, uap->param_size);
3327 if (error != 0)
3328 return (error);
3329 param.start_func = PTRIN(param32.start_func);
3330 param.arg = PTRIN(param32.arg);
3331 param.stack_base = PTRIN(param32.stack_base);
3332 param.stack_size = param32.stack_size;
3333 param.tls_base = PTRIN(param32.tls_base);
3334 param.tls_size = param32.tls_size;
3335 param.child_tid = PTRIN(param32.child_tid);
3336 param.parent_tid = PTRIN(param32.parent_tid);
3337 param.flags = param32.flags;
3338 param.rtp = PTRIN(param32.rtp);
3339 param.spare[0] = PTRIN(param32.spare[0]);
3340 param.spare[1] = PTRIN(param32.spare[1]);
3341 param.spare[2] = PTRIN(param32.spare[2]);
3342
3343 return (kern_thr_new(td, ¶m));
3344 }
3345
3346 int
freebsd32_thr_suspend(struct thread * td,struct freebsd32_thr_suspend_args * uap)3347 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap)
3348 {
3349 struct timespec32 ts32;
3350 struct timespec ts, *tsp;
3351 int error;
3352
3353 error = 0;
3354 tsp = NULL;
3355 if (uap->timeout != NULL) {
3356 error = copyin((const void *)uap->timeout, (void *)&ts32,
3357 sizeof(struct timespec32));
3358 if (error != 0)
3359 return (error);
3360 ts.tv_sec = ts32.tv_sec;
3361 ts.tv_nsec = ts32.tv_nsec;
3362 tsp = &ts;
3363 }
3364 return (kern_thr_suspend(td, tsp));
3365 }
3366
3367 void
siginfo_to_siginfo32(const siginfo_t * src,struct __siginfo32 * dst)3368 siginfo_to_siginfo32(const siginfo_t *src, struct __siginfo32 *dst)
3369 {
3370 bzero(dst, sizeof(*dst));
3371 dst->si_signo = src->si_signo;
3372 dst->si_errno = src->si_errno;
3373 dst->si_code = src->si_code;
3374 dst->si_pid = src->si_pid;
3375 dst->si_uid = src->si_uid;
3376 dst->si_status = src->si_status;
3377 dst->si_addr = (uintptr_t)src->si_addr;
3378 dst->si_value.sival_int = src->si_value.sival_int;
3379 dst->si_timerid = src->si_timerid;
3380 dst->si_overrun = src->si_overrun;
3381 }
3382
3383 #ifndef _FREEBSD32_SYSPROTO_H_
3384 struct freebsd32_sigqueue_args {
3385 pid_t pid;
3386 int signum;
3387 /* union sigval32 */ int value;
3388 };
3389 #endif
3390 int
freebsd32_sigqueue(struct thread * td,struct freebsd32_sigqueue_args * uap)3391 freebsd32_sigqueue(struct thread *td, struct freebsd32_sigqueue_args *uap)
3392 {
3393 union sigval sv;
3394
3395 /*
3396 * On 32-bit ABIs, sival_int and sival_ptr are the same.
3397 * On 64-bit little-endian ABIs, the low bits are the same.
3398 * In 64-bit big-endian ABIs, sival_int overlaps with
3399 * sival_ptr's HIGH bits. We choose to support sival_int
3400 * rather than sival_ptr in this case as it seems to be
3401 * more common.
3402 */
3403 bzero(&sv, sizeof(sv));
3404 sv.sival_int = (uint32_t)(uint64_t)uap->value;
3405
3406 return (kern_sigqueue(td, uap->pid, uap->signum, &sv));
3407 }
3408
3409 int
freebsd32_sigtimedwait(struct thread * td,struct freebsd32_sigtimedwait_args * uap)3410 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap)
3411 {
3412 struct timespec32 ts32;
3413 struct timespec ts;
3414 struct timespec *timeout;
3415 sigset_t set;
3416 ksiginfo_t ksi;
3417 struct __siginfo32 si32;
3418 int error;
3419
3420 if (uap->timeout) {
3421 error = copyin(uap->timeout, &ts32, sizeof(ts32));
3422 if (error)
3423 return (error);
3424 ts.tv_sec = ts32.tv_sec;
3425 ts.tv_nsec = ts32.tv_nsec;
3426 timeout = &ts;
3427 } else
3428 timeout = NULL;
3429
3430 error = copyin(uap->set, &set, sizeof(set));
3431 if (error)
3432 return (error);
3433
3434 error = kern_sigtimedwait(td, set, &ksi, timeout);
3435 if (error)
3436 return (error);
3437
3438 if (uap->info) {
3439 siginfo_to_siginfo32(&ksi.ksi_info, &si32);
3440 error = copyout(&si32, uap->info, sizeof(struct __siginfo32));
3441 }
3442
3443 if (error == 0)
3444 td->td_retval[0] = ksi.ksi_signo;
3445 return (error);
3446 }
3447
3448 /*
3449 * MPSAFE
3450 */
3451 int
freebsd32_sigwaitinfo(struct thread * td,struct freebsd32_sigwaitinfo_args * uap)3452 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap)
3453 {
3454 ksiginfo_t ksi;
3455 struct __siginfo32 si32;
3456 sigset_t set;
3457 int error;
3458
3459 error = copyin(uap->set, &set, sizeof(set));
3460 if (error)
3461 return (error);
3462
3463 error = kern_sigtimedwait(td, set, &ksi, NULL);
3464 if (error)
3465 return (error);
3466
3467 if (uap->info) {
3468 siginfo_to_siginfo32(&ksi.ksi_info, &si32);
3469 error = copyout(&si32, uap->info, sizeof(struct __siginfo32));
3470 }
3471 if (error == 0)
3472 td->td_retval[0] = ksi.ksi_signo;
3473 return (error);
3474 }
3475
3476 int
freebsd32_cpuset_setid(struct thread * td,struct freebsd32_cpuset_setid_args * uap)3477 freebsd32_cpuset_setid(struct thread *td,
3478 struct freebsd32_cpuset_setid_args *uap)
3479 {
3480
3481 return (kern_cpuset_setid(td, uap->which,
3482 PAIR32TO64(id_t, uap->id), uap->setid));
3483 }
3484
3485 int
freebsd32_cpuset_getid(struct thread * td,struct freebsd32_cpuset_getid_args * uap)3486 freebsd32_cpuset_getid(struct thread *td,
3487 struct freebsd32_cpuset_getid_args *uap)
3488 {
3489
3490 return (kern_cpuset_getid(td, uap->level, uap->which,
3491 PAIR32TO64(id_t, uap->id), uap->setid));
3492 }
3493
3494 static int
copyin32_set(const void * u,void * k,size_t size)3495 copyin32_set(const void *u, void *k, size_t size)
3496 {
3497 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
3498 int rv;
3499 struct bitset *kb = k;
3500 int *p;
3501
3502 rv = copyin(u, k, size);
3503 if (rv != 0)
3504 return (rv);
3505
3506 p = (int *)kb->__bits;
3507 /* Loop through swapping words.
3508 * `size' is in bytes, we need bits. */
3509 for (int i = 0; i < __bitset_words(size * 8); i++) {
3510 int tmp = p[0];
3511 p[0] = p[1];
3512 p[1] = tmp;
3513 p += 2;
3514 }
3515 return (0);
3516 #else
3517 return (copyin(u, k, size));
3518 #endif
3519 }
3520
3521 static int
copyout32_set(const void * k,void * u,size_t size)3522 copyout32_set(const void *k, void *u, size_t size)
3523 {
3524 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
3525 const struct bitset *kb = k;
3526 struct bitset *ub = u;
3527 const int *kp = (const int *)kb->__bits;
3528 int *up = (int *)ub->__bits;
3529 int rv;
3530
3531 for (int i = 0; i < __bitset_words(CPU_SETSIZE); i++) {
3532 /* `size' is in bytes, we need bits. */
3533 for (int i = 0; i < __bitset_words(size * 8); i++) {
3534 rv = suword32(up, kp[1]);
3535 if (rv == 0)
3536 rv = suword32(up + 1, kp[0]);
3537 if (rv != 0)
3538 return (EFAULT);
3539 }
3540 }
3541 return (0);
3542 #else
3543 return (copyout(k, u, size));
3544 #endif
3545 }
3546
3547 static const struct cpuset_copy_cb cpuset_copy32_cb = {
3548 .cpuset_copyin = copyin32_set,
3549 .cpuset_copyout = copyout32_set
3550 };
3551
3552 int
freebsd32_cpuset_getaffinity(struct thread * td,struct freebsd32_cpuset_getaffinity_args * uap)3553 freebsd32_cpuset_getaffinity(struct thread *td,
3554 struct freebsd32_cpuset_getaffinity_args *uap)
3555 {
3556
3557 return (user_cpuset_getaffinity(td, uap->level, uap->which,
3558 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask,
3559 &cpuset_copy32_cb));
3560 }
3561
3562 int
freebsd32_cpuset_setaffinity(struct thread * td,struct freebsd32_cpuset_setaffinity_args * uap)3563 freebsd32_cpuset_setaffinity(struct thread *td,
3564 struct freebsd32_cpuset_setaffinity_args *uap)
3565 {
3566
3567 return (user_cpuset_setaffinity(td, uap->level, uap->which,
3568 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask,
3569 &cpuset_copy32_cb));
3570 }
3571
3572 int
freebsd32_cpuset_getdomain(struct thread * td,struct freebsd32_cpuset_getdomain_args * uap)3573 freebsd32_cpuset_getdomain(struct thread *td,
3574 struct freebsd32_cpuset_getdomain_args *uap)
3575 {
3576
3577 return (kern_cpuset_getdomain(td, uap->level, uap->which,
3578 PAIR32TO64(id_t,uap->id), uap->domainsetsize, uap->mask, uap->policy,
3579 &cpuset_copy32_cb));
3580 }
3581
3582 int
freebsd32_cpuset_setdomain(struct thread * td,struct freebsd32_cpuset_setdomain_args * uap)3583 freebsd32_cpuset_setdomain(struct thread *td,
3584 struct freebsd32_cpuset_setdomain_args *uap)
3585 {
3586
3587 return (kern_cpuset_setdomain(td, uap->level, uap->which,
3588 PAIR32TO64(id_t,uap->id), uap->domainsetsize, uap->mask, uap->policy,
3589 &cpuset_copy32_cb));
3590 }
3591
3592 int
freebsd32_nmount(struct thread * td,struct freebsd32_nmount_args * uap)3593 freebsd32_nmount(struct thread *td,
3594 struct freebsd32_nmount_args /* {
3595 struct iovec *iovp;
3596 unsigned int iovcnt;
3597 int flags;
3598 } */ *uap)
3599 {
3600 struct uio *auio;
3601 uint64_t flags;
3602 int error;
3603
3604 /*
3605 * Mount flags are now 64-bits. On 32-bit archtectures only
3606 * 32-bits are passed in, but from here on everything handles
3607 * 64-bit flags correctly.
3608 */
3609 flags = uap->flags;
3610
3611 AUDIT_ARG_FFLAGS(flags);
3612
3613 /*
3614 * Filter out MNT_ROOTFS. We do not want clients of nmount() in
3615 * userspace to set this flag, but we must filter it out if we want
3616 * MNT_UPDATE on the root file system to work.
3617 * MNT_ROOTFS should only be set by the kernel when mounting its
3618 * root file system.
3619 */
3620 flags &= ~MNT_ROOTFS;
3621
3622 /*
3623 * check that we have an even number of iovec's
3624 * and that we have at least two options.
3625 */
3626 if ((uap->iovcnt & 1) || (uap->iovcnt < 4))
3627 return (EINVAL);
3628
3629 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio);
3630 if (error)
3631 return (error);
3632 error = vfs_donmount(td, flags, auio);
3633
3634 freeuio(auio);
3635 return error;
3636 }
3637
3638 #if 0
3639 int
3640 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap)
3641 {
3642 struct yyy32 *p32, s32;
3643 struct yyy *p = NULL, s;
3644 struct xxx_arg ap;
3645 int error;
3646
3647 if (uap->zzz) {
3648 error = copyin(uap->zzz, &s32, sizeof(s32));
3649 if (error)
3650 return (error);
3651 /* translate in */
3652 p = &s;
3653 }
3654 error = kern_xxx(td, p);
3655 if (error)
3656 return (error);
3657 if (uap->zzz) {
3658 /* translate out */
3659 error = copyout(&s32, p32, sizeof(s32));
3660 }
3661 return (error);
3662 }
3663 #endif
3664
3665 int
syscall32_module_handler(struct module * mod,int what,void * arg)3666 syscall32_module_handler(struct module *mod, int what, void *arg)
3667 {
3668
3669 return (kern_syscall_module_handler(freebsd32_sysent, mod, what, arg));
3670 }
3671
3672 int
syscall32_helper_register(struct syscall_helper_data * sd,int flags)3673 syscall32_helper_register(struct syscall_helper_data *sd, int flags)
3674 {
3675
3676 return (kern_syscall_helper_register(freebsd32_sysent, sd, flags));
3677 }
3678
3679 int
syscall32_helper_unregister(struct syscall_helper_data * sd)3680 syscall32_helper_unregister(struct syscall_helper_data *sd)
3681 {
3682
3683 return (kern_syscall_helper_unregister(freebsd32_sysent, sd));
3684 }
3685
3686 int
freebsd32_copyout_strings(struct image_params * imgp,uintptr_t * stack_base)3687 freebsd32_copyout_strings(struct image_params *imgp, uintptr_t *stack_base)
3688 {
3689 struct sysentvec *sysent;
3690 int argc, envc, i;
3691 uint32_t *vectp;
3692 char *stringp;
3693 uintptr_t destp, ustringp;
3694 struct freebsd32_ps_strings *arginfo;
3695 char canary[sizeof(long) * 8];
3696 int32_t pagesizes32[MAXPAGESIZES];
3697 size_t execpath_len;
3698 int error, szsigcode;
3699
3700 sysent = imgp->sysent;
3701
3702 arginfo = (struct freebsd32_ps_strings *)PROC_PS_STRINGS(imgp->proc);
3703 imgp->ps_strings = arginfo;
3704 destp = (uintptr_t)arginfo;
3705
3706 /*
3707 * Install sigcode.
3708 */
3709 if (!PROC_HAS_SHP(imgp->proc)) {
3710 szsigcode = *sysent->sv_szsigcode;
3711 destp -= szsigcode;
3712 destp = rounddown2(destp, sizeof(uint32_t));
3713 error = copyout(sysent->sv_sigcode, (void *)destp,
3714 szsigcode);
3715 if (error != 0)
3716 return (error);
3717 }
3718
3719 /*
3720 * Copy the image path for the rtld.
3721 */
3722 if (imgp->execpath != NULL && imgp->auxargs != NULL) {
3723 execpath_len = strlen(imgp->execpath) + 1;
3724 destp -= execpath_len;
3725 imgp->execpathp = (void *)destp;
3726 error = copyout(imgp->execpath, imgp->execpathp, execpath_len);
3727 if (error != 0)
3728 return (error);
3729 }
3730
3731 /*
3732 * Prepare the canary for SSP.
3733 */
3734 arc4rand(canary, sizeof(canary), 0);
3735 destp -= sizeof(canary);
3736 imgp->canary = (void *)destp;
3737 error = copyout(canary, imgp->canary, sizeof(canary));
3738 if (error != 0)
3739 return (error);
3740 imgp->canarylen = sizeof(canary);
3741
3742 /*
3743 * Prepare the pagesizes array.
3744 */
3745 for (i = 0; i < MAXPAGESIZES; i++)
3746 pagesizes32[i] = (uint32_t)pagesizes[i];
3747 destp -= sizeof(pagesizes32);
3748 destp = rounddown2(destp, sizeof(uint32_t));
3749 imgp->pagesizes = (void *)destp;
3750 error = copyout(pagesizes32, imgp->pagesizes, sizeof(pagesizes32));
3751 if (error != 0)
3752 return (error);
3753 imgp->pagesizeslen = sizeof(pagesizes32);
3754
3755 /*
3756 * Allocate room for the argument and environment strings.
3757 */
3758 destp -= ARG_MAX - imgp->args->stringspace;
3759 destp = rounddown2(destp, sizeof(uint32_t));
3760 ustringp = destp;
3761
3762 if (imgp->auxargs) {
3763 /*
3764 * Allocate room on the stack for the ELF auxargs
3765 * array. It has up to AT_COUNT entries.
3766 */
3767 destp -= AT_COUNT * sizeof(Elf32_Auxinfo);
3768 destp = rounddown2(destp, sizeof(uint32_t));
3769 }
3770
3771 vectp = (uint32_t *)destp;
3772
3773 /*
3774 * Allocate room for the argv[] and env vectors including the
3775 * terminating NULL pointers.
3776 */
3777 vectp -= imgp->args->argc + 1 + imgp->args->envc + 1;
3778
3779 /*
3780 * vectp also becomes our initial stack base
3781 */
3782 *stack_base = (uintptr_t)vectp;
3783
3784 stringp = imgp->args->begin_argv;
3785 argc = imgp->args->argc;
3786 envc = imgp->args->envc;
3787 /*
3788 * Copy out strings - arguments and environment.
3789 */
3790 error = copyout(stringp, (void *)ustringp,
3791 ARG_MAX - imgp->args->stringspace);
3792 if (error != 0)
3793 return (error);
3794
3795 /*
3796 * Fill in "ps_strings" struct for ps, w, etc.
3797 */
3798 imgp->argv = vectp;
3799 if (suword32(&arginfo->ps_argvstr, (uint32_t)(intptr_t)vectp) != 0 ||
3800 suword32(&arginfo->ps_nargvstr, argc) != 0)
3801 return (EFAULT);
3802
3803 /*
3804 * Fill in argument portion of vector table.
3805 */
3806 for (; argc > 0; --argc) {
3807 if (suword32(vectp++, ustringp) != 0)
3808 return (EFAULT);
3809 while (*stringp++ != 0)
3810 ustringp++;
3811 ustringp++;
3812 }
3813
3814 /* a null vector table pointer separates the argp's from the envp's */
3815 if (suword32(vectp++, 0) != 0)
3816 return (EFAULT);
3817
3818 imgp->envv = vectp;
3819 if (suword32(&arginfo->ps_envstr, (uint32_t)(intptr_t)vectp) != 0 ||
3820 suword32(&arginfo->ps_nenvstr, envc) != 0)
3821 return (EFAULT);
3822
3823 /*
3824 * Fill in environment portion of vector table.
3825 */
3826 for (; envc > 0; --envc) {
3827 if (suword32(vectp++, ustringp) != 0)
3828 return (EFAULT);
3829 while (*stringp++ != 0)
3830 ustringp++;
3831 ustringp++;
3832 }
3833
3834 /* end of vector table is a null pointer */
3835 if (suword32(vectp, 0) != 0)
3836 return (EFAULT);
3837
3838 if (imgp->auxargs) {
3839 vectp++;
3840 error = imgp->sysent->sv_copyout_auxargs(imgp,
3841 (uintptr_t)vectp);
3842 if (error != 0)
3843 return (error);
3844 }
3845
3846 return (0);
3847 }
3848
3849 int
freebsd32_kldstat(struct thread * td,struct freebsd32_kldstat_args * uap)3850 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap)
3851 {
3852 struct kld_file_stat *stat;
3853 struct kld_file_stat32 *stat32;
3854 int error, version;
3855
3856 if ((error = copyin(&uap->stat->version, &version, sizeof(version)))
3857 != 0)
3858 return (error);
3859 if (version != sizeof(struct kld_file_stat_1_32) &&
3860 version != sizeof(struct kld_file_stat32))
3861 return (EINVAL);
3862
3863 stat = malloc(sizeof(*stat), M_TEMP, M_WAITOK | M_ZERO);
3864 stat32 = malloc(sizeof(*stat32), M_TEMP, M_WAITOK | M_ZERO);
3865 error = kern_kldstat(td, uap->fileid, stat);
3866 if (error == 0) {
3867 bcopy(&stat->name[0], &stat32->name[0], sizeof(stat->name));
3868 CP(*stat, *stat32, refs);
3869 CP(*stat, *stat32, id);
3870 PTROUT_CP(*stat, *stat32, address);
3871 CP(*stat, *stat32, size);
3872 bcopy(&stat->pathname[0], &stat32->pathname[0],
3873 sizeof(stat->pathname));
3874 stat32->version = version;
3875 error = copyout(stat32, uap->stat, version);
3876 }
3877 free(stat, M_TEMP);
3878 free(stat32, M_TEMP);
3879 return (error);
3880 }
3881
3882 int
freebsd32_posix_fallocate(struct thread * td,struct freebsd32_posix_fallocate_args * uap)3883 freebsd32_posix_fallocate(struct thread *td,
3884 struct freebsd32_posix_fallocate_args *uap)
3885 {
3886 int error;
3887
3888 error = kern_posix_fallocate(td, uap->fd,
3889 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len));
3890 return (kern_posix_error(td, error));
3891 }
3892
3893 int
freebsd32_posix_fadvise(struct thread * td,struct freebsd32_posix_fadvise_args * uap)3894 freebsd32_posix_fadvise(struct thread *td,
3895 struct freebsd32_posix_fadvise_args *uap)
3896 {
3897 int error;
3898
3899 error = kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset),
3900 PAIR32TO64(off_t, uap->len), uap->advice);
3901 return (kern_posix_error(td, error));
3902 }
3903
3904 int
convert_sigevent32(struct sigevent32 * sig32,struct sigevent * sig)3905 convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig)
3906 {
3907
3908 CP(*sig32, *sig, sigev_notify);
3909 switch (sig->sigev_notify) {
3910 case SIGEV_NONE:
3911 break;
3912 case SIGEV_THREAD_ID:
3913 CP(*sig32, *sig, sigev_notify_thread_id);
3914 /* FALLTHROUGH */
3915 case SIGEV_SIGNAL:
3916 CP(*sig32, *sig, sigev_signo);
3917 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr);
3918 break;
3919 case SIGEV_KEVENT:
3920 CP(*sig32, *sig, sigev_notify_kqueue);
3921 CP(*sig32, *sig, sigev_notify_kevent_flags);
3922 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr);
3923 break;
3924 default:
3925 return (EINVAL);
3926 }
3927 return (0);
3928 }
3929
3930 int
freebsd32_procctl(struct thread * td,struct freebsd32_procctl_args * uap)3931 freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap)
3932 {
3933 void *data;
3934 union {
3935 struct procctl_reaper_status rs;
3936 struct procctl_reaper_pids rp;
3937 struct procctl_reaper_kill rk;
3938 } x;
3939 union {
3940 struct procctl_reaper_pids32 rp;
3941 } x32;
3942 int error, error1, flags, signum;
3943
3944 if (uap->com >= PROC_PROCCTL_MD_MIN)
3945 return (cpu_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id),
3946 uap->com, PTRIN(uap->data)));
3947
3948 switch (uap->com) {
3949 case PROC_ASLR_CTL:
3950 case PROC_PROTMAX_CTL:
3951 case PROC_SPROTECT:
3952 case PROC_STACKGAP_CTL:
3953 case PROC_TRACE_CTL:
3954 case PROC_TRAPCAP_CTL:
3955 case PROC_NO_NEW_PRIVS_CTL:
3956 case PROC_WXMAP_CTL:
3957 case PROC_LOGSIGEXIT_CTL:
3958 error = copyin(PTRIN(uap->data), &flags, sizeof(flags));
3959 if (error != 0)
3960 return (error);
3961 data = &flags;
3962 break;
3963 case PROC_REAP_ACQUIRE:
3964 case PROC_REAP_RELEASE:
3965 if (uap->data != NULL)
3966 return (EINVAL);
3967 data = NULL;
3968 break;
3969 case PROC_REAP_STATUS:
3970 data = &x.rs;
3971 break;
3972 case PROC_REAP_GETPIDS:
3973 error = copyin(uap->data, &x32.rp, sizeof(x32.rp));
3974 if (error != 0)
3975 return (error);
3976 CP(x32.rp, x.rp, rp_count);
3977 PTRIN_CP(x32.rp, x.rp, rp_pids);
3978 data = &x.rp;
3979 break;
3980 case PROC_REAP_KILL:
3981 error = copyin(uap->data, &x.rk, sizeof(x.rk));
3982 if (error != 0)
3983 return (error);
3984 data = &x.rk;
3985 break;
3986 case PROC_ASLR_STATUS:
3987 case PROC_PROTMAX_STATUS:
3988 case PROC_STACKGAP_STATUS:
3989 case PROC_TRACE_STATUS:
3990 case PROC_TRAPCAP_STATUS:
3991 case PROC_NO_NEW_PRIVS_STATUS:
3992 case PROC_WXMAP_STATUS:
3993 case PROC_LOGSIGEXIT_STATUS:
3994 data = &flags;
3995 break;
3996 case PROC_PDEATHSIG_CTL:
3997 error = copyin(uap->data, &signum, sizeof(signum));
3998 if (error != 0)
3999 return (error);
4000 data = &signum;
4001 break;
4002 case PROC_PDEATHSIG_STATUS:
4003 data = &signum;
4004 break;
4005 default:
4006 return (EINVAL);
4007 }
4008 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id),
4009 uap->com, data);
4010 switch (uap->com) {
4011 case PROC_REAP_STATUS:
4012 if (error == 0)
4013 error = copyout(&x.rs, uap->data, sizeof(x.rs));
4014 break;
4015 case PROC_REAP_KILL:
4016 error1 = copyout(&x.rk, uap->data, sizeof(x.rk));
4017 if (error == 0)
4018 error = error1;
4019 break;
4020 case PROC_ASLR_STATUS:
4021 case PROC_PROTMAX_STATUS:
4022 case PROC_STACKGAP_STATUS:
4023 case PROC_TRACE_STATUS:
4024 case PROC_TRAPCAP_STATUS:
4025 case PROC_NO_NEW_PRIVS_STATUS:
4026 case PROC_WXMAP_STATUS:
4027 case PROC_LOGSIGEXIT_STATUS:
4028 if (error == 0)
4029 error = copyout(&flags, uap->data, sizeof(flags));
4030 break;
4031 case PROC_PDEATHSIG_STATUS:
4032 if (error == 0)
4033 error = copyout(&signum, uap->data, sizeof(signum));
4034 break;
4035 }
4036 return (error);
4037 }
4038
4039 int
freebsd32_fcntl(struct thread * td,struct freebsd32_fcntl_args * uap)4040 freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap)
4041 {
4042 intptr_t tmp;
4043
4044 switch (uap->cmd) {
4045 /*
4046 * Do unsigned conversion for arg when operation
4047 * interprets it as flags or pointer.
4048 */
4049 case F_SETLK_REMOTE:
4050 case F_SETLKW:
4051 case F_SETLK:
4052 case F_GETLK:
4053 case F_SETFD:
4054 case F_SETFL:
4055 case F_OGETLK:
4056 case F_OSETLK:
4057 case F_OSETLKW:
4058 case F_KINFO:
4059 tmp = (unsigned int)(uap->arg);
4060 break;
4061 default:
4062 tmp = uap->arg;
4063 break;
4064 }
4065 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp));
4066 }
4067
4068 int
freebsd32_ppoll(struct thread * td,struct freebsd32_ppoll_args * uap)4069 freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap)
4070 {
4071 struct timespec32 ts32;
4072 struct timespec ts, *tsp;
4073 sigset_t set, *ssp;
4074 int error;
4075
4076 if (uap->ts != NULL) {
4077 error = copyin(uap->ts, &ts32, sizeof(ts32));
4078 if (error != 0)
4079 return (error);
4080 CP(ts32, ts, tv_sec);
4081 CP(ts32, ts, tv_nsec);
4082 tsp = &ts;
4083 } else
4084 tsp = NULL;
4085 if (uap->set != NULL) {
4086 error = copyin(uap->set, &set, sizeof(set));
4087 if (error != 0)
4088 return (error);
4089 ssp = &set;
4090 } else
4091 ssp = NULL;
4092
4093 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp));
4094 }
4095
4096 int
freebsd32_sched_rr_get_interval(struct thread * td,struct freebsd32_sched_rr_get_interval_args * uap)4097 freebsd32_sched_rr_get_interval(struct thread *td,
4098 struct freebsd32_sched_rr_get_interval_args *uap)
4099 {
4100 struct timespec ts;
4101 struct timespec32 ts32;
4102 int error;
4103
4104 error = kern_sched_rr_get_interval(td, uap->pid, &ts);
4105 if (error == 0) {
4106 CP(ts, ts32, tv_sec);
4107 CP(ts, ts32, tv_nsec);
4108 error = copyout(&ts32, uap->interval, sizeof(ts32));
4109 }
4110 return (error);
4111 }
4112
4113 static void
timex_to_32(struct timex32 * dst,struct timex * src)4114 timex_to_32(struct timex32 *dst, struct timex *src)
4115 {
4116 CP(*src, *dst, modes);
4117 CP(*src, *dst, offset);
4118 CP(*src, *dst, freq);
4119 CP(*src, *dst, maxerror);
4120 CP(*src, *dst, esterror);
4121 CP(*src, *dst, status);
4122 CP(*src, *dst, constant);
4123 CP(*src, *dst, precision);
4124 CP(*src, *dst, tolerance);
4125 CP(*src, *dst, ppsfreq);
4126 CP(*src, *dst, jitter);
4127 CP(*src, *dst, shift);
4128 CP(*src, *dst, stabil);
4129 CP(*src, *dst, jitcnt);
4130 CP(*src, *dst, calcnt);
4131 CP(*src, *dst, errcnt);
4132 CP(*src, *dst, stbcnt);
4133 }
4134
4135 static void
timex_from_32(struct timex * dst,struct timex32 * src)4136 timex_from_32(struct timex *dst, struct timex32 *src)
4137 {
4138 CP(*src, *dst, modes);
4139 CP(*src, *dst, offset);
4140 CP(*src, *dst, freq);
4141 CP(*src, *dst, maxerror);
4142 CP(*src, *dst, esterror);
4143 CP(*src, *dst, status);
4144 CP(*src, *dst, constant);
4145 CP(*src, *dst, precision);
4146 CP(*src, *dst, tolerance);
4147 CP(*src, *dst, ppsfreq);
4148 CP(*src, *dst, jitter);
4149 CP(*src, *dst, shift);
4150 CP(*src, *dst, stabil);
4151 CP(*src, *dst, jitcnt);
4152 CP(*src, *dst, calcnt);
4153 CP(*src, *dst, errcnt);
4154 CP(*src, *dst, stbcnt);
4155 }
4156
4157 int
freebsd32_ntp_adjtime(struct thread * td,struct freebsd32_ntp_adjtime_args * uap)4158 freebsd32_ntp_adjtime(struct thread *td, struct freebsd32_ntp_adjtime_args *uap)
4159 {
4160 struct timex tx;
4161 struct timex32 tx32;
4162 int error, retval;
4163
4164 error = copyin(uap->tp, &tx32, sizeof(tx32));
4165 if (error == 0) {
4166 timex_from_32(&tx, &tx32);
4167 error = kern_ntp_adjtime(td, &tx, &retval);
4168 if (error == 0) {
4169 timex_to_32(&tx32, &tx);
4170 error = copyout(&tx32, uap->tp, sizeof(tx32));
4171 if (error == 0)
4172 td->td_retval[0] = retval;
4173 }
4174 }
4175 return (error);
4176 }
4177
4178 #ifdef FFCLOCK
4179 extern struct mtx ffclock_mtx;
4180 extern struct ffclock_estimate ffclock_estimate;
4181 extern int8_t ffclock_updated;
4182
4183 int
freebsd32_ffclock_setestimate(struct thread * td,struct freebsd32_ffclock_setestimate_args * uap)4184 freebsd32_ffclock_setestimate(struct thread *td,
4185 struct freebsd32_ffclock_setestimate_args *uap)
4186 {
4187 struct ffclock_estimate cest;
4188 struct ffclock_estimate32 cest32;
4189 int error;
4190
4191 /* Reuse of PRIV_CLOCK_SETTIME. */
4192 if ((error = priv_check(td, PRIV_CLOCK_SETTIME)) != 0)
4193 return (error);
4194
4195 if ((error = copyin(uap->cest, &cest32,
4196 sizeof(struct ffclock_estimate32))) != 0)
4197 return (error);
4198
4199 CP(cest.update_time, cest32.update_time, sec);
4200 memcpy(&cest.update_time.frac, &cest32.update_time.frac, sizeof(uint64_t));
4201 CP(cest, cest32, update_ffcount);
4202 CP(cest, cest32, leapsec_next);
4203 CP(cest, cest32, period);
4204 CP(cest, cest32, errb_abs);
4205 CP(cest, cest32, errb_rate);
4206 CP(cest, cest32, status);
4207 CP(cest, cest32, leapsec_total);
4208 CP(cest, cest32, leapsec);
4209
4210 mtx_lock(&ffclock_mtx);
4211 memcpy(&ffclock_estimate, &cest, sizeof(struct ffclock_estimate));
4212 ffclock_updated++;
4213 mtx_unlock(&ffclock_mtx);
4214 return (error);
4215 }
4216
4217 int
freebsd32_ffclock_getestimate(struct thread * td,struct freebsd32_ffclock_getestimate_args * uap)4218 freebsd32_ffclock_getestimate(struct thread *td,
4219 struct freebsd32_ffclock_getestimate_args *uap)
4220 {
4221 struct ffclock_estimate cest;
4222 struct ffclock_estimate32 cest32;
4223 int error;
4224
4225 mtx_lock(&ffclock_mtx);
4226 memcpy(&cest, &ffclock_estimate, sizeof(struct ffclock_estimate));
4227 mtx_unlock(&ffclock_mtx);
4228
4229 CP(cest32.update_time, cest.update_time, sec);
4230 memcpy(&cest32.update_time.frac, &cest.update_time.frac, sizeof(uint64_t));
4231 CP(cest32, cest, update_ffcount);
4232 CP(cest32, cest, leapsec_next);
4233 CP(cest32, cest, period);
4234 CP(cest32, cest, errb_abs);
4235 CP(cest32, cest, errb_rate);
4236 CP(cest32, cest, status);
4237 CP(cest32, cest, leapsec_total);
4238 CP(cest32, cest, leapsec);
4239
4240 error = copyout(&cest32, uap->cest, sizeof(struct ffclock_estimate32));
4241 return (error);
4242 }
4243 #else /* !FFCLOCK */
4244 int
freebsd32_ffclock_setestimate(struct thread * td,struct freebsd32_ffclock_setestimate_args * uap)4245 freebsd32_ffclock_setestimate(struct thread *td,
4246 struct freebsd32_ffclock_setestimate_args *uap)
4247 {
4248 return (ENOSYS);
4249 }
4250
4251 int
freebsd32_ffclock_getestimate(struct thread * td,struct freebsd32_ffclock_getestimate_args * uap)4252 freebsd32_ffclock_getestimate(struct thread *td,
4253 struct freebsd32_ffclock_getestimate_args *uap)
4254 {
4255 return (ENOSYS);
4256 }
4257 #endif /* FFCLOCK */
4258
4259 #ifdef COMPAT_43
4260 int
ofreebsd32_sethostid(struct thread * td,struct ofreebsd32_sethostid_args * uap)4261 ofreebsd32_sethostid(struct thread *td, struct ofreebsd32_sethostid_args *uap)
4262 {
4263 int name[] = { CTL_KERN, KERN_HOSTID };
4264 long hostid;
4265
4266 hostid = uap->hostid;
4267 return (kernel_sysctl(td, name, nitems(name), NULL, NULL, &hostid,
4268 sizeof(hostid), NULL, 0));
4269 }
4270 #endif
4271
4272 int
freebsd32_setcred(struct thread * td,struct freebsd32_setcred_args * uap)4273 freebsd32_setcred(struct thread *td, struct freebsd32_setcred_args *uap)
4274 {
4275 struct setcred wcred;
4276 struct setcred32 wcred32;
4277 int error;
4278
4279 if (uap->size != sizeof(wcred32))
4280 return (EINVAL);
4281 error = copyin(uap->wcred, &wcred32, sizeof(wcred32));
4282 if (error != 0)
4283 return (error);
4284 memset(&wcred, 0, sizeof(wcred));
4285 CP(wcred32, wcred, sc_uid);
4286 CP(wcred32, wcred, sc_ruid);
4287 CP(wcred32, wcred, sc_svuid);
4288 CP(wcred32, wcred, sc_gid);
4289 CP(wcred32, wcred, sc_rgid);
4290 CP(wcred32, wcred, sc_svgid);
4291 CP(wcred32, wcred, sc_supp_groups_nb);
4292 PTRIN_CP(wcred32, wcred, sc_supp_groups);
4293 PTRIN_CP(wcred32, wcred, sc_label);
4294 return (user_setcred(td, uap->flags, &wcred));
4295 }
4296