1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2002 Doug Rabson 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include "opt_inet.h" 33 #include "opt_inet6.h" 34 #include "opt_ktrace.h" 35 36 #define __ELF_WORD_SIZE 32 37 38 #ifdef COMPAT_FREEBSD11 39 #define _WANT_FREEBSD11_KEVENT 40 #endif 41 42 #include <sys/param.h> 43 #include <sys/bus.h> 44 #include <sys/capsicum.h> 45 #include <sys/clock.h> 46 #include <sys/exec.h> 47 #include <sys/fcntl.h> 48 #include <sys/filedesc.h> 49 #include <sys/imgact.h> 50 #include <sys/jail.h> 51 #include <sys/kernel.h> 52 #include <sys/limits.h> 53 #include <sys/linker.h> 54 #include <sys/lock.h> 55 #include <sys/malloc.h> 56 #include <sys/file.h> /* Must come after sys/malloc.h */ 57 #include <sys/imgact.h> 58 #include <sys/mbuf.h> 59 #include <sys/mman.h> 60 #include <sys/module.h> 61 #include <sys/mount.h> 62 #include <sys/mutex.h> 63 #include <sys/namei.h> 64 #include <sys/proc.h> 65 #include <sys/procctl.h> 66 #include <sys/reboot.h> 67 #include <sys/resource.h> 68 #include <sys/resourcevar.h> 69 #include <sys/selinfo.h> 70 #include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 71 #include <sys/pipe.h> /* Must come after sys/selinfo.h */ 72 #include <sys/signal.h> 73 #include <sys/signalvar.h> 74 #include <sys/socket.h> 75 #include <sys/socketvar.h> 76 #include <sys/stat.h> 77 #include <sys/syscall.h> 78 #include <sys/syscallsubr.h> 79 #include <sys/sysctl.h> 80 #include <sys/sysent.h> 81 #include <sys/sysproto.h> 82 #include <sys/systm.h> 83 #include <sys/thr.h> 84 #include <sys/unistd.h> 85 #include <sys/ucontext.h> 86 #include <sys/vnode.h> 87 #include <sys/wait.h> 88 #include <sys/ipc.h> 89 #include <sys/msg.h> 90 #include <sys/sem.h> 91 #include <sys/shm.h> 92 #ifdef KTRACE 93 #include <sys/ktrace.h> 94 #endif 95 96 #ifdef INET 97 #include <netinet/in.h> 98 #endif 99 100 #include <vm/vm.h> 101 #include <vm/vm_param.h> 102 #include <vm/pmap.h> 103 #include <vm/vm_map.h> 104 #include <vm/vm_object.h> 105 #include <vm/vm_extern.h> 106 107 #include <machine/cpu.h> 108 #include <machine/elf.h> 109 110 #include <security/audit/audit.h> 111 112 #include <compat/freebsd32/freebsd32_util.h> 113 #include <compat/freebsd32/freebsd32.h> 114 #include <compat/freebsd32/freebsd32_ipc.h> 115 #include <compat/freebsd32/freebsd32_misc.h> 116 #include <compat/freebsd32/freebsd32_signal.h> 117 #include <compat/freebsd32/freebsd32_proto.h> 118 119 FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD"); 120 121 #ifdef __amd64__ 122 CTASSERT(sizeof(struct timeval32) == 8); 123 CTASSERT(sizeof(struct timespec32) == 8); 124 CTASSERT(sizeof(struct itimerval32) == 16); 125 CTASSERT(sizeof(struct bintime32) == 12); 126 #endif 127 CTASSERT(sizeof(struct statfs32) == 256); 128 #ifdef __amd64__ 129 CTASSERT(sizeof(struct rusage32) == 72); 130 #endif 131 CTASSERT(sizeof(struct sigaltstack32) == 12); 132 #ifdef __amd64__ 133 CTASSERT(sizeof(struct kevent32) == 56); 134 #else 135 CTASSERT(sizeof(struct kevent32) == 64); 136 #endif 137 CTASSERT(sizeof(struct iovec32) == 8); 138 CTASSERT(sizeof(struct msghdr32) == 28); 139 #ifdef __amd64__ 140 CTASSERT(sizeof(struct stat32) == 208); 141 CTASSERT(sizeof(struct freebsd11_stat32) == 96); 142 #endif 143 CTASSERT(sizeof(struct sigaction32) == 24); 144 145 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 146 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 147 static int freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id, 148 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp); 149 150 void 151 freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 152 { 153 154 TV_CP(*s, *s32, ru_utime); 155 TV_CP(*s, *s32, ru_stime); 156 CP(*s, *s32, ru_maxrss); 157 CP(*s, *s32, ru_ixrss); 158 CP(*s, *s32, ru_idrss); 159 CP(*s, *s32, ru_isrss); 160 CP(*s, *s32, ru_minflt); 161 CP(*s, *s32, ru_majflt); 162 CP(*s, *s32, ru_nswap); 163 CP(*s, *s32, ru_inblock); 164 CP(*s, *s32, ru_oublock); 165 CP(*s, *s32, ru_msgsnd); 166 CP(*s, *s32, ru_msgrcv); 167 CP(*s, *s32, ru_nsignals); 168 CP(*s, *s32, ru_nvcsw); 169 CP(*s, *s32, ru_nivcsw); 170 } 171 172 int 173 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 174 { 175 int error, status; 176 struct rusage32 ru32; 177 struct rusage ru, *rup; 178 179 if (uap->rusage != NULL) 180 rup = &ru; 181 else 182 rup = NULL; 183 error = kern_wait(td, uap->pid, &status, uap->options, rup); 184 if (error) 185 return (error); 186 if (uap->status != NULL) 187 error = copyout(&status, uap->status, sizeof(status)); 188 if (uap->rusage != NULL && error == 0) { 189 freebsd32_rusage_out(&ru, &ru32); 190 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 191 } 192 return (error); 193 } 194 195 int 196 freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap) 197 { 198 struct wrusage32 wru32; 199 struct __wrusage wru, *wrup; 200 struct siginfo32 si32; 201 struct __siginfo si, *sip; 202 int error, status; 203 204 if (uap->wrusage != NULL) 205 wrup = &wru; 206 else 207 wrup = NULL; 208 if (uap->info != NULL) { 209 sip = &si; 210 bzero(sip, sizeof(*sip)); 211 } else 212 sip = NULL; 213 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id), 214 &status, uap->options, wrup, sip); 215 if (error != 0) 216 return (error); 217 if (uap->status != NULL) 218 error = copyout(&status, uap->status, sizeof(status)); 219 if (uap->wrusage != NULL && error == 0) { 220 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self); 221 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children); 222 error = copyout(&wru32, uap->wrusage, sizeof(wru32)); 223 } 224 if (uap->info != NULL && error == 0) { 225 siginfo_to_siginfo32 (&si, &si32); 226 error = copyout(&si32, uap->info, sizeof(si32)); 227 } 228 return (error); 229 } 230 231 #ifdef COMPAT_FREEBSD4 232 static void 233 copy_statfs(struct statfs *in, struct statfs32 *out) 234 { 235 236 statfs_scale_blocks(in, INT32_MAX); 237 bzero(out, sizeof(*out)); 238 CP(*in, *out, f_bsize); 239 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 240 CP(*in, *out, f_blocks); 241 CP(*in, *out, f_bfree); 242 CP(*in, *out, f_bavail); 243 out->f_files = MIN(in->f_files, INT32_MAX); 244 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 245 CP(*in, *out, f_fsid); 246 CP(*in, *out, f_owner); 247 CP(*in, *out, f_type); 248 CP(*in, *out, f_flags); 249 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 250 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 251 strlcpy(out->f_fstypename, 252 in->f_fstypename, MFSNAMELEN); 253 strlcpy(out->f_mntonname, 254 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 255 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 256 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 257 strlcpy(out->f_mntfromname, 258 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 259 } 260 #endif 261 262 #ifdef COMPAT_FREEBSD4 263 int 264 freebsd4_freebsd32_getfsstat(struct thread *td, 265 struct freebsd4_freebsd32_getfsstat_args *uap) 266 { 267 struct statfs *buf, *sp; 268 struct statfs32 stat32; 269 size_t count, size, copycount; 270 int error; 271 272 count = uap->bufsize / sizeof(struct statfs32); 273 size = count * sizeof(struct statfs); 274 error = kern_getfsstat(td, &buf, size, &count, UIO_SYSSPACE, uap->mode); 275 if (size > 0) { 276 sp = buf; 277 copycount = count; 278 while (copycount > 0 && error == 0) { 279 copy_statfs(sp, &stat32); 280 error = copyout(&stat32, uap->buf, sizeof(stat32)); 281 sp++; 282 uap->buf++; 283 copycount--; 284 } 285 free(buf, M_STATFS); 286 } 287 if (error == 0) 288 td->td_retval[0] = count; 289 return (error); 290 } 291 #endif 292 293 #ifdef COMPAT_FREEBSD10 294 int 295 freebsd10_freebsd32_pipe(struct thread *td, 296 struct freebsd10_freebsd32_pipe_args *uap) { 297 298 return (freebsd10_pipe(td, (struct freebsd10_pipe_args*)uap)); 299 } 300 #endif 301 302 int 303 freebsd32_sigaltstack(struct thread *td, 304 struct freebsd32_sigaltstack_args *uap) 305 { 306 struct sigaltstack32 s32; 307 struct sigaltstack ss, oss, *ssp; 308 int error; 309 310 if (uap->ss != NULL) { 311 error = copyin(uap->ss, &s32, sizeof(s32)); 312 if (error) 313 return (error); 314 PTRIN_CP(s32, ss, ss_sp); 315 CP(s32, ss, ss_size); 316 CP(s32, ss, ss_flags); 317 ssp = &ss; 318 } else 319 ssp = NULL; 320 error = kern_sigaltstack(td, ssp, &oss); 321 if (error == 0 && uap->oss != NULL) { 322 PTROUT_CP(oss, s32, ss_sp); 323 CP(oss, s32, ss_size); 324 CP(oss, s32, ss_flags); 325 error = copyout(&s32, uap->oss, sizeof(s32)); 326 } 327 return (error); 328 } 329 330 /* 331 * Custom version of exec_copyin_args() so that we can translate 332 * the pointers. 333 */ 334 int 335 freebsd32_exec_copyin_args(struct image_args *args, char *fname, 336 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 337 { 338 char *argp, *envp; 339 u_int32_t *p32, arg; 340 size_t length; 341 int error; 342 343 bzero(args, sizeof(*args)); 344 if (argv == NULL) 345 return (EFAULT); 346 347 /* 348 * Allocate demand-paged memory for the file name, argument, and 349 * environment strings. 350 */ 351 error = exec_alloc_args(args); 352 if (error != 0) 353 return (error); 354 355 /* 356 * Copy the file name. 357 */ 358 if (fname != NULL) { 359 args->fname = args->buf; 360 error = (segflg == UIO_SYSSPACE) ? 361 copystr(fname, args->fname, PATH_MAX, &length) : 362 copyinstr(fname, args->fname, PATH_MAX, &length); 363 if (error != 0) 364 goto err_exit; 365 } else 366 length = 0; 367 368 args->begin_argv = args->buf + length; 369 args->endp = args->begin_argv; 370 args->stringspace = ARG_MAX; 371 372 /* 373 * extract arguments first 374 */ 375 p32 = argv; 376 for (;;) { 377 error = copyin(p32++, &arg, sizeof(arg)); 378 if (error) 379 goto err_exit; 380 if (arg == 0) 381 break; 382 argp = PTRIN(arg); 383 error = copyinstr(argp, args->endp, args->stringspace, &length); 384 if (error) { 385 if (error == ENAMETOOLONG) 386 error = E2BIG; 387 goto err_exit; 388 } 389 args->stringspace -= length; 390 args->endp += length; 391 args->argc++; 392 } 393 394 args->begin_envv = args->endp; 395 396 /* 397 * extract environment strings 398 */ 399 if (envv) { 400 p32 = envv; 401 for (;;) { 402 error = copyin(p32++, &arg, sizeof(arg)); 403 if (error) 404 goto err_exit; 405 if (arg == 0) 406 break; 407 envp = PTRIN(arg); 408 error = copyinstr(envp, args->endp, args->stringspace, 409 &length); 410 if (error) { 411 if (error == ENAMETOOLONG) 412 error = E2BIG; 413 goto err_exit; 414 } 415 args->stringspace -= length; 416 args->endp += length; 417 args->envc++; 418 } 419 } 420 421 return (0); 422 423 err_exit: 424 exec_free_args(args); 425 return (error); 426 } 427 428 int 429 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 430 { 431 struct image_args eargs; 432 struct vmspace *oldvmspace; 433 int error; 434 435 error = pre_execve(td, &oldvmspace); 436 if (error != 0) 437 return (error); 438 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 439 uap->argv, uap->envv); 440 if (error == 0) 441 error = kern_execve(td, &eargs, NULL); 442 post_execve(td, error, oldvmspace); 443 return (error); 444 } 445 446 int 447 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 448 { 449 struct image_args eargs; 450 struct vmspace *oldvmspace; 451 int error; 452 453 error = pre_execve(td, &oldvmspace); 454 if (error != 0) 455 return (error); 456 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 457 uap->argv, uap->envv); 458 if (error == 0) { 459 eargs.fd = uap->fd; 460 error = kern_execve(td, &eargs, NULL); 461 } 462 post_execve(td, error, oldvmspace); 463 return (error); 464 } 465 466 #if defined(COMPAT_FREEBSD11) 467 int 468 freebsd11_freebsd32_mknod(struct thread *td, 469 struct freebsd11_freebsd32_mknod_args *uap) 470 { 471 472 return (kern_mknodat(td, AT_FDCWD, uap->path, UIO_USERSPACE, uap->mode, 473 uap->dev)); 474 } 475 476 int 477 freebsd11_freebsd32_mknodat(struct thread *td, 478 struct freebsd11_freebsd32_mknodat_args *uap) 479 { 480 481 return (kern_mknodat(td, uap->fd, uap->path, UIO_USERSPACE, uap->mode, 482 uap->dev)); 483 } 484 #endif /* COMPAT_FREEBSD11 */ 485 486 int 487 freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 488 { 489 int prot; 490 491 prot = uap->prot; 492 #if defined(__amd64__) 493 if (i386_read_exec && (prot & PROT_READ) != 0) 494 prot |= PROT_EXEC; 495 #endif 496 return (kern_mprotect(td, (uintptr_t)PTRIN(uap->addr), uap->len, 497 prot)); 498 } 499 500 int 501 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 502 { 503 int prot; 504 505 prot = uap->prot; 506 #if defined(__amd64__) 507 if (i386_read_exec && (prot & PROT_READ)) 508 prot |= PROT_EXEC; 509 #endif 510 511 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot, 512 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos))); 513 } 514 515 #ifdef COMPAT_FREEBSD6 516 int 517 freebsd6_freebsd32_mmap(struct thread *td, 518 struct freebsd6_freebsd32_mmap_args *uap) 519 { 520 int prot; 521 522 prot = uap->prot; 523 #if defined(__amd64__) 524 if (i386_read_exec && (prot & PROT_READ)) 525 prot |= PROT_EXEC; 526 #endif 527 528 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot, 529 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos))); 530 } 531 #endif 532 533 int 534 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 535 { 536 struct itimerval itv, oitv, *itvp; 537 struct itimerval32 i32; 538 int error; 539 540 if (uap->itv != NULL) { 541 error = copyin(uap->itv, &i32, sizeof(i32)); 542 if (error) 543 return (error); 544 TV_CP(i32, itv, it_interval); 545 TV_CP(i32, itv, it_value); 546 itvp = &itv; 547 } else 548 itvp = NULL; 549 error = kern_setitimer(td, uap->which, itvp, &oitv); 550 if (error || uap->oitv == NULL) 551 return (error); 552 TV_CP(oitv, i32, it_interval); 553 TV_CP(oitv, i32, it_value); 554 return (copyout(&i32, uap->oitv, sizeof(i32))); 555 } 556 557 int 558 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 559 { 560 struct itimerval itv; 561 struct itimerval32 i32; 562 int error; 563 564 error = kern_getitimer(td, uap->which, &itv); 565 if (error || uap->itv == NULL) 566 return (error); 567 TV_CP(itv, i32, it_interval); 568 TV_CP(itv, i32, it_value); 569 return (copyout(&i32, uap->itv, sizeof(i32))); 570 } 571 572 int 573 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 574 { 575 struct timeval32 tv32; 576 struct timeval tv, *tvp; 577 int error; 578 579 if (uap->tv != NULL) { 580 error = copyin(uap->tv, &tv32, sizeof(tv32)); 581 if (error) 582 return (error); 583 CP(tv32, tv, tv_sec); 584 CP(tv32, tv, tv_usec); 585 tvp = &tv; 586 } else 587 tvp = NULL; 588 /* 589 * XXX Do pointers need PTRIN()? 590 */ 591 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 592 sizeof(int32_t) * 8)); 593 } 594 595 int 596 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 597 { 598 struct timespec32 ts32; 599 struct timespec ts; 600 struct timeval tv, *tvp; 601 sigset_t set, *uset; 602 int error; 603 604 if (uap->ts != NULL) { 605 error = copyin(uap->ts, &ts32, sizeof(ts32)); 606 if (error != 0) 607 return (error); 608 CP(ts32, ts, tv_sec); 609 CP(ts32, ts, tv_nsec); 610 TIMESPEC_TO_TIMEVAL(&tv, &ts); 611 tvp = &tv; 612 } else 613 tvp = NULL; 614 if (uap->sm != NULL) { 615 error = copyin(uap->sm, &set, sizeof(set)); 616 if (error != 0) 617 return (error); 618 uset = &set; 619 } else 620 uset = NULL; 621 /* 622 * XXX Do pointers need PTRIN()? 623 */ 624 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 625 uset, sizeof(int32_t) * 8); 626 return (error); 627 } 628 629 /* 630 * Copy 'count' items into the destination list pointed to by uap->eventlist. 631 */ 632 static int 633 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 634 { 635 struct freebsd32_kevent_args *uap; 636 struct kevent32 ks32[KQ_NEVENTS]; 637 uint64_t e; 638 int i, j, error; 639 640 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 641 uap = (struct freebsd32_kevent_args *)arg; 642 643 for (i = 0; i < count; i++) { 644 CP(kevp[i], ks32[i], ident); 645 CP(kevp[i], ks32[i], filter); 646 CP(kevp[i], ks32[i], flags); 647 CP(kevp[i], ks32[i], fflags); 648 #if BYTE_ORDER == LITTLE_ENDIAN 649 ks32[i].data1 = kevp[i].data; 650 ks32[i].data2 = kevp[i].data >> 32; 651 #else 652 ks32[i].data1 = kevp[i].data >> 32; 653 ks32[i].data2 = kevp[i].data; 654 #endif 655 PTROUT_CP(kevp[i], ks32[i], udata); 656 for (j = 0; j < nitems(kevp->ext); j++) { 657 e = kevp[i].ext[j]; 658 #if BYTE_ORDER == LITTLE_ENDIAN 659 ks32[i].ext64[2 * j] = e; 660 ks32[i].ext64[2 * j + 1] = e >> 32; 661 #else 662 ks32[i].ext64[2 * j] = e >> 32; 663 ks32[i].ext64[2 * j + 1] = e; 664 #endif 665 } 666 } 667 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 668 if (error == 0) 669 uap->eventlist += count; 670 return (error); 671 } 672 673 /* 674 * Copy 'count' items from the list pointed to by uap->changelist. 675 */ 676 static int 677 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 678 { 679 struct freebsd32_kevent_args *uap; 680 struct kevent32 ks32[KQ_NEVENTS]; 681 uint64_t e; 682 int i, j, error; 683 684 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 685 uap = (struct freebsd32_kevent_args *)arg; 686 687 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 688 if (error) 689 goto done; 690 uap->changelist += count; 691 692 for (i = 0; i < count; i++) { 693 CP(ks32[i], kevp[i], ident); 694 CP(ks32[i], kevp[i], filter); 695 CP(ks32[i], kevp[i], flags); 696 CP(ks32[i], kevp[i], fflags); 697 kevp[i].data = PAIR32TO64(uint64_t, ks32[i].data); 698 PTRIN_CP(ks32[i], kevp[i], udata); 699 for (j = 0; j < nitems(kevp->ext); j++) { 700 #if BYTE_ORDER == LITTLE_ENDIAN 701 e = ks32[i].ext64[2 * j + 1]; 702 e <<= 32; 703 e += ks32[i].ext64[2 * j]; 704 #else 705 e = ks32[i].ext64[2 * j]; 706 e <<= 32; 707 e += ks32[i].ext64[2 * j + 1]; 708 #endif 709 kevp[i].ext[j] = e; 710 } 711 } 712 done: 713 return (error); 714 } 715 716 int 717 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 718 { 719 struct timespec32 ts32; 720 struct timespec ts, *tsp; 721 struct kevent_copyops k_ops = { 722 .arg = uap, 723 .k_copyout = freebsd32_kevent_copyout, 724 .k_copyin = freebsd32_kevent_copyin, 725 }; 726 #ifdef KTRACE 727 struct kevent32 *eventlist = uap->eventlist; 728 #endif 729 int error; 730 731 if (uap->timeout) { 732 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 733 if (error) 734 return (error); 735 CP(ts32, ts, tv_sec); 736 CP(ts32, ts, tv_nsec); 737 tsp = &ts; 738 } else 739 tsp = NULL; 740 #ifdef KTRACE 741 if (KTRPOINT(td, KTR_STRUCT_ARRAY)) 742 ktrstructarray("kevent32", UIO_USERSPACE, uap->changelist, 743 uap->nchanges, sizeof(struct kevent32)); 744 #endif 745 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 746 &k_ops, tsp); 747 #ifdef KTRACE 748 if (error == 0 && KTRPOINT(td, KTR_STRUCT_ARRAY)) 749 ktrstructarray("kevent32", UIO_USERSPACE, eventlist, 750 td->td_retval[0], sizeof(struct kevent32)); 751 #endif 752 return (error); 753 } 754 755 #ifdef COMPAT_FREEBSD11 756 static int 757 freebsd32_kevent11_copyout(void *arg, struct kevent *kevp, int count) 758 { 759 struct freebsd11_freebsd32_kevent_args *uap; 760 struct kevent32_freebsd11 ks32[KQ_NEVENTS]; 761 int i, error; 762 763 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 764 uap = (struct freebsd11_freebsd32_kevent_args *)arg; 765 766 for (i = 0; i < count; i++) { 767 CP(kevp[i], ks32[i], ident); 768 CP(kevp[i], ks32[i], filter); 769 CP(kevp[i], ks32[i], flags); 770 CP(kevp[i], ks32[i], fflags); 771 CP(kevp[i], ks32[i], data); 772 PTROUT_CP(kevp[i], ks32[i], udata); 773 } 774 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 775 if (error == 0) 776 uap->eventlist += count; 777 return (error); 778 } 779 780 /* 781 * Copy 'count' items from the list pointed to by uap->changelist. 782 */ 783 static int 784 freebsd32_kevent11_copyin(void *arg, struct kevent *kevp, int count) 785 { 786 struct freebsd11_freebsd32_kevent_args *uap; 787 struct kevent32_freebsd11 ks32[KQ_NEVENTS]; 788 int i, j, error; 789 790 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 791 uap = (struct freebsd11_freebsd32_kevent_args *)arg; 792 793 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 794 if (error) 795 goto done; 796 uap->changelist += count; 797 798 for (i = 0; i < count; i++) { 799 CP(ks32[i], kevp[i], ident); 800 CP(ks32[i], kevp[i], filter); 801 CP(ks32[i], kevp[i], flags); 802 CP(ks32[i], kevp[i], fflags); 803 CP(ks32[i], kevp[i], data); 804 PTRIN_CP(ks32[i], kevp[i], udata); 805 for (j = 0; j < nitems(kevp->ext); j++) 806 kevp[i].ext[j] = 0; 807 } 808 done: 809 return (error); 810 } 811 812 int 813 freebsd11_freebsd32_kevent(struct thread *td, 814 struct freebsd11_freebsd32_kevent_args *uap) 815 { 816 struct timespec32 ts32; 817 struct timespec ts, *tsp; 818 struct kevent_copyops k_ops = { 819 .arg = uap, 820 .k_copyout = freebsd32_kevent11_copyout, 821 .k_copyin = freebsd32_kevent11_copyin, 822 }; 823 #ifdef KTRACE 824 struct kevent32_freebsd11 *eventlist = uap->eventlist; 825 #endif 826 int error; 827 828 if (uap->timeout) { 829 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 830 if (error) 831 return (error); 832 CP(ts32, ts, tv_sec); 833 CP(ts32, ts, tv_nsec); 834 tsp = &ts; 835 } else 836 tsp = NULL; 837 #ifdef KTRACE 838 if (KTRPOINT(td, KTR_STRUCT_ARRAY)) 839 ktrstructarray("kevent32_freebsd11", UIO_USERSPACE, 840 uap->changelist, uap->nchanges, 841 sizeof(struct kevent32_freebsd11)); 842 #endif 843 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 844 &k_ops, tsp); 845 #ifdef KTRACE 846 if (error == 0 && KTRPOINT(td, KTR_STRUCT_ARRAY)) 847 ktrstructarray("kevent32_freebsd11", UIO_USERSPACE, 848 eventlist, td->td_retval[0], 849 sizeof(struct kevent32_freebsd11)); 850 #endif 851 return (error); 852 } 853 #endif 854 855 int 856 freebsd32_gettimeofday(struct thread *td, 857 struct freebsd32_gettimeofday_args *uap) 858 { 859 struct timeval atv; 860 struct timeval32 atv32; 861 struct timezone rtz; 862 int error = 0; 863 864 if (uap->tp) { 865 microtime(&atv); 866 CP(atv, atv32, tv_sec); 867 CP(atv, atv32, tv_usec); 868 error = copyout(&atv32, uap->tp, sizeof (atv32)); 869 } 870 if (error == 0 && uap->tzp != NULL) { 871 rtz.tz_minuteswest = tz_minuteswest; 872 rtz.tz_dsttime = tz_dsttime; 873 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 874 } 875 return (error); 876 } 877 878 int 879 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 880 { 881 struct rusage32 s32; 882 struct rusage s; 883 int error; 884 885 error = kern_getrusage(td, uap->who, &s); 886 if (error) 887 return (error); 888 if (uap->rusage != NULL) { 889 freebsd32_rusage_out(&s, &s32); 890 error = copyout(&s32, uap->rusage, sizeof(s32)); 891 } 892 return (error); 893 } 894 895 static int 896 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 897 { 898 struct iovec32 iov32; 899 struct iovec *iov; 900 struct uio *uio; 901 u_int iovlen; 902 int error, i; 903 904 *uiop = NULL; 905 if (iovcnt > UIO_MAXIOV) 906 return (EINVAL); 907 iovlen = iovcnt * sizeof(struct iovec); 908 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 909 iov = (struct iovec *)(uio + 1); 910 for (i = 0; i < iovcnt; i++) { 911 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 912 if (error) { 913 free(uio, M_IOV); 914 return (error); 915 } 916 iov[i].iov_base = PTRIN(iov32.iov_base); 917 iov[i].iov_len = iov32.iov_len; 918 } 919 uio->uio_iov = iov; 920 uio->uio_iovcnt = iovcnt; 921 uio->uio_segflg = UIO_USERSPACE; 922 uio->uio_offset = -1; 923 uio->uio_resid = 0; 924 for (i = 0; i < iovcnt; i++) { 925 if (iov->iov_len > INT_MAX - uio->uio_resid) { 926 free(uio, M_IOV); 927 return (EINVAL); 928 } 929 uio->uio_resid += iov->iov_len; 930 iov++; 931 } 932 *uiop = uio; 933 return (0); 934 } 935 936 int 937 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 938 { 939 struct uio *auio; 940 int error; 941 942 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 943 if (error) 944 return (error); 945 error = kern_readv(td, uap->fd, auio); 946 free(auio, M_IOV); 947 return (error); 948 } 949 950 int 951 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 952 { 953 struct uio *auio; 954 int error; 955 956 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 957 if (error) 958 return (error); 959 error = kern_writev(td, uap->fd, auio); 960 free(auio, M_IOV); 961 return (error); 962 } 963 964 int 965 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 966 { 967 struct uio *auio; 968 int error; 969 970 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 971 if (error) 972 return (error); 973 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 974 free(auio, M_IOV); 975 return (error); 976 } 977 978 int 979 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 980 { 981 struct uio *auio; 982 int error; 983 984 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 985 if (error) 986 return (error); 987 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 988 free(auio, M_IOV); 989 return (error); 990 } 991 992 int 993 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 994 int error) 995 { 996 struct iovec32 iov32; 997 struct iovec *iov; 998 u_int iovlen; 999 int i; 1000 1001 *iovp = NULL; 1002 if (iovcnt > UIO_MAXIOV) 1003 return (error); 1004 iovlen = iovcnt * sizeof(struct iovec); 1005 iov = malloc(iovlen, M_IOV, M_WAITOK); 1006 for (i = 0; i < iovcnt; i++) { 1007 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 1008 if (error) { 1009 free(iov, M_IOV); 1010 return (error); 1011 } 1012 iov[i].iov_base = PTRIN(iov32.iov_base); 1013 iov[i].iov_len = iov32.iov_len; 1014 } 1015 *iovp = iov; 1016 return (0); 1017 } 1018 1019 static int 1020 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 1021 { 1022 struct msghdr32 m32; 1023 int error; 1024 1025 error = copyin(msg32, &m32, sizeof(m32)); 1026 if (error) 1027 return (error); 1028 msg->msg_name = PTRIN(m32.msg_name); 1029 msg->msg_namelen = m32.msg_namelen; 1030 msg->msg_iov = PTRIN(m32.msg_iov); 1031 msg->msg_iovlen = m32.msg_iovlen; 1032 msg->msg_control = PTRIN(m32.msg_control); 1033 msg->msg_controllen = m32.msg_controllen; 1034 msg->msg_flags = m32.msg_flags; 1035 return (0); 1036 } 1037 1038 static int 1039 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 1040 { 1041 struct msghdr32 m32; 1042 int error; 1043 1044 m32.msg_name = PTROUT(msg->msg_name); 1045 m32.msg_namelen = msg->msg_namelen; 1046 m32.msg_iov = PTROUT(msg->msg_iov); 1047 m32.msg_iovlen = msg->msg_iovlen; 1048 m32.msg_control = PTROUT(msg->msg_control); 1049 m32.msg_controllen = msg->msg_controllen; 1050 m32.msg_flags = msg->msg_flags; 1051 error = copyout(&m32, msg32, sizeof(m32)); 1052 return (error); 1053 } 1054 1055 #ifndef __mips__ 1056 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 1057 #else 1058 #define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 1059 #endif 1060 #define FREEBSD32_ALIGN(p) \ 1061 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 1062 #define FREEBSD32_CMSG_SPACE(l) \ 1063 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 1064 1065 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 1066 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 1067 1068 static size_t 1069 freebsd32_cmsg_convert(struct cmsghdr *cm, void *data, socklen_t datalen) 1070 { 1071 size_t copylen; 1072 union { 1073 struct timespec32 ts; 1074 struct timeval32 tv; 1075 struct bintime32 bt; 1076 } tmp32; 1077 1078 union { 1079 struct timespec ts; 1080 struct timeval tv; 1081 struct bintime bt; 1082 } *in; 1083 1084 in = data; 1085 copylen = 0; 1086 switch (cm->cmsg_level) { 1087 case SOL_SOCKET: 1088 switch (cm->cmsg_type) { 1089 case SCM_TIMESTAMP: 1090 TV_CP(*in, tmp32, tv); 1091 copylen = sizeof(tmp32.tv); 1092 break; 1093 1094 case SCM_BINTIME: 1095 BT_CP(*in, tmp32, bt); 1096 copylen = sizeof(tmp32.bt); 1097 break; 1098 1099 case SCM_REALTIME: 1100 case SCM_MONOTONIC: 1101 TS_CP(*in, tmp32, ts); 1102 copylen = sizeof(tmp32.ts); 1103 break; 1104 1105 default: 1106 break; 1107 } 1108 1109 default: 1110 break; 1111 } 1112 1113 if (copylen == 0) 1114 return (datalen); 1115 1116 KASSERT((datalen >= copylen), ("corrupted cmsghdr")); 1117 1118 bcopy(&tmp32, data, copylen); 1119 return (copylen); 1120 } 1121 1122 static int 1123 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 1124 { 1125 struct cmsghdr *cm; 1126 void *data; 1127 socklen_t clen, datalen, datalen_out; 1128 int error; 1129 caddr_t ctlbuf; 1130 int len, maxlen, copylen; 1131 struct mbuf *m; 1132 error = 0; 1133 1134 len = msg->msg_controllen; 1135 maxlen = msg->msg_controllen; 1136 msg->msg_controllen = 0; 1137 1138 m = control; 1139 ctlbuf = msg->msg_control; 1140 1141 while (m && len > 0) { 1142 cm = mtod(m, struct cmsghdr *); 1143 clen = m->m_len; 1144 1145 while (cm != NULL) { 1146 1147 if (sizeof(struct cmsghdr) > clen || 1148 cm->cmsg_len > clen) { 1149 error = EINVAL; 1150 break; 1151 } 1152 1153 data = CMSG_DATA(cm); 1154 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1155 datalen_out = freebsd32_cmsg_convert(cm, data, datalen); 1156 1157 /* Adjust message length */ 1158 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 1159 datalen_out; 1160 1161 /* Copy cmsghdr */ 1162 copylen = sizeof(struct cmsghdr); 1163 if (len < copylen) { 1164 msg->msg_flags |= MSG_CTRUNC; 1165 copylen = len; 1166 } 1167 1168 error = copyout(cm, ctlbuf, copylen); 1169 if (error) 1170 goto exit; 1171 1172 ctlbuf += FREEBSD32_ALIGN(copylen); 1173 len -= FREEBSD32_ALIGN(copylen); 1174 1175 if (len <= 0) 1176 break; 1177 1178 /* Copy data */ 1179 copylen = datalen_out; 1180 if (len < copylen) { 1181 msg->msg_flags |= MSG_CTRUNC; 1182 copylen = len; 1183 } 1184 1185 error = copyout(data, ctlbuf, copylen); 1186 if (error) 1187 goto exit; 1188 1189 ctlbuf += FREEBSD32_ALIGN(copylen); 1190 len -= FREEBSD32_ALIGN(copylen); 1191 1192 if (CMSG_SPACE(datalen) < clen) { 1193 clen -= CMSG_SPACE(datalen); 1194 cm = (struct cmsghdr *) 1195 ((caddr_t)cm + CMSG_SPACE(datalen)); 1196 } else { 1197 clen = 0; 1198 cm = NULL; 1199 } 1200 } 1201 m = m->m_next; 1202 } 1203 1204 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 1205 1206 exit: 1207 return (error); 1208 1209 } 1210 1211 int 1212 freebsd32_recvmsg(td, uap) 1213 struct thread *td; 1214 struct freebsd32_recvmsg_args /* { 1215 int s; 1216 struct msghdr32 *msg; 1217 int flags; 1218 } */ *uap; 1219 { 1220 struct msghdr msg; 1221 struct msghdr32 m32; 1222 struct iovec *uiov, *iov; 1223 struct mbuf *control = NULL; 1224 struct mbuf **controlp; 1225 1226 int error; 1227 error = copyin(uap->msg, &m32, sizeof(m32)); 1228 if (error) 1229 return (error); 1230 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1231 if (error) 1232 return (error); 1233 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1234 EMSGSIZE); 1235 if (error) 1236 return (error); 1237 msg.msg_flags = uap->flags; 1238 uiov = msg.msg_iov; 1239 msg.msg_iov = iov; 1240 1241 controlp = (msg.msg_control != NULL) ? &control : NULL; 1242 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1243 if (error == 0) { 1244 msg.msg_iov = uiov; 1245 1246 if (control != NULL) 1247 error = freebsd32_copy_msg_out(&msg, control); 1248 else 1249 msg.msg_controllen = 0; 1250 1251 if (error == 0) 1252 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1253 } 1254 free(iov, M_IOV); 1255 1256 if (control != NULL) 1257 m_freem(control); 1258 1259 return (error); 1260 } 1261 1262 /* 1263 * Copy-in the array of control messages constructed using alignment 1264 * and padding suitable for a 32-bit environment and construct an 1265 * mbuf using alignment and padding suitable for a 64-bit kernel. 1266 * The alignment and padding are defined indirectly by CMSG_DATA(), 1267 * CMSG_SPACE() and CMSG_LEN(). 1268 */ 1269 static int 1270 freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1271 { 1272 struct mbuf *m; 1273 void *md; 1274 u_int idx, len, msglen; 1275 int error; 1276 1277 buflen = FREEBSD32_ALIGN(buflen); 1278 1279 if (buflen > MCLBYTES) 1280 return (EINVAL); 1281 1282 /* 1283 * Iterate over the buffer and get the length of each message 1284 * in there. This has 32-bit alignment and padding. Use it to 1285 * determine the length of these messages when using 64-bit 1286 * alignment and padding. 1287 */ 1288 idx = 0; 1289 len = 0; 1290 while (idx < buflen) { 1291 error = copyin(buf + idx, &msglen, sizeof(msglen)); 1292 if (error) 1293 return (error); 1294 if (msglen < sizeof(struct cmsghdr)) 1295 return (EINVAL); 1296 msglen = FREEBSD32_ALIGN(msglen); 1297 if (idx + msglen > buflen) 1298 return (EINVAL); 1299 idx += msglen; 1300 msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) - 1301 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1302 len += CMSG_ALIGN(msglen); 1303 } 1304 1305 if (len > MCLBYTES) 1306 return (EINVAL); 1307 1308 m = m_get(M_WAITOK, MT_CONTROL); 1309 if (len > MLEN) 1310 MCLGET(m, M_WAITOK); 1311 m->m_len = len; 1312 1313 md = mtod(m, void *); 1314 while (buflen > 0) { 1315 error = copyin(buf, md, sizeof(struct cmsghdr)); 1316 if (error) 1317 break; 1318 msglen = *(u_int *)md; 1319 msglen = FREEBSD32_ALIGN(msglen); 1320 1321 /* Modify the message length to account for alignment. */ 1322 *(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) - 1323 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1324 1325 md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr)); 1326 buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1327 buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1328 1329 msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1330 if (msglen > 0) { 1331 error = copyin(buf, md, msglen); 1332 if (error) 1333 break; 1334 md = (char *)md + CMSG_ALIGN(msglen); 1335 buf += msglen; 1336 buflen -= msglen; 1337 } 1338 } 1339 1340 if (error) 1341 m_free(m); 1342 else 1343 *mp = m; 1344 return (error); 1345 } 1346 1347 int 1348 freebsd32_sendmsg(struct thread *td, 1349 struct freebsd32_sendmsg_args *uap) 1350 { 1351 struct msghdr msg; 1352 struct msghdr32 m32; 1353 struct iovec *iov; 1354 struct mbuf *control = NULL; 1355 struct sockaddr *to = NULL; 1356 int error; 1357 1358 error = copyin(uap->msg, &m32, sizeof(m32)); 1359 if (error) 1360 return (error); 1361 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1362 if (error) 1363 return (error); 1364 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1365 EMSGSIZE); 1366 if (error) 1367 return (error); 1368 msg.msg_iov = iov; 1369 if (msg.msg_name != NULL) { 1370 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1371 if (error) { 1372 to = NULL; 1373 goto out; 1374 } 1375 msg.msg_name = to; 1376 } 1377 1378 if (msg.msg_control) { 1379 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1380 error = EINVAL; 1381 goto out; 1382 } 1383 1384 error = freebsd32_copyin_control(&control, msg.msg_control, 1385 msg.msg_controllen); 1386 if (error) 1387 goto out; 1388 1389 msg.msg_control = NULL; 1390 msg.msg_controllen = 0; 1391 } 1392 1393 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1394 UIO_USERSPACE); 1395 1396 out: 1397 free(iov, M_IOV); 1398 if (to) 1399 free(to, M_SONAME); 1400 return (error); 1401 } 1402 1403 int 1404 freebsd32_recvfrom(struct thread *td, 1405 struct freebsd32_recvfrom_args *uap) 1406 { 1407 struct msghdr msg; 1408 struct iovec aiov; 1409 int error; 1410 1411 if (uap->fromlenaddr) { 1412 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1413 sizeof(msg.msg_namelen)); 1414 if (error) 1415 return (error); 1416 } else { 1417 msg.msg_namelen = 0; 1418 } 1419 1420 msg.msg_name = PTRIN(uap->from); 1421 msg.msg_iov = &aiov; 1422 msg.msg_iovlen = 1; 1423 aiov.iov_base = PTRIN(uap->buf); 1424 aiov.iov_len = uap->len; 1425 msg.msg_control = NULL; 1426 msg.msg_flags = uap->flags; 1427 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1428 if (error == 0 && uap->fromlenaddr) 1429 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1430 sizeof (msg.msg_namelen)); 1431 return (error); 1432 } 1433 1434 int 1435 freebsd32_settimeofday(struct thread *td, 1436 struct freebsd32_settimeofday_args *uap) 1437 { 1438 struct timeval32 tv32; 1439 struct timeval tv, *tvp; 1440 struct timezone tz, *tzp; 1441 int error; 1442 1443 if (uap->tv) { 1444 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1445 if (error) 1446 return (error); 1447 CP(tv32, tv, tv_sec); 1448 CP(tv32, tv, tv_usec); 1449 tvp = &tv; 1450 } else 1451 tvp = NULL; 1452 if (uap->tzp) { 1453 error = copyin(uap->tzp, &tz, sizeof(tz)); 1454 if (error) 1455 return (error); 1456 tzp = &tz; 1457 } else 1458 tzp = NULL; 1459 return (kern_settimeofday(td, tvp, tzp)); 1460 } 1461 1462 int 1463 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1464 { 1465 struct timeval32 s32[2]; 1466 struct timeval s[2], *sp; 1467 int error; 1468 1469 if (uap->tptr != NULL) { 1470 error = copyin(uap->tptr, s32, sizeof(s32)); 1471 if (error) 1472 return (error); 1473 CP(s32[0], s[0], tv_sec); 1474 CP(s32[0], s[0], tv_usec); 1475 CP(s32[1], s[1], tv_sec); 1476 CP(s32[1], s[1], tv_usec); 1477 sp = s; 1478 } else 1479 sp = NULL; 1480 return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE, 1481 sp, UIO_SYSSPACE)); 1482 } 1483 1484 int 1485 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1486 { 1487 struct timeval32 s32[2]; 1488 struct timeval s[2], *sp; 1489 int error; 1490 1491 if (uap->tptr != NULL) { 1492 error = copyin(uap->tptr, s32, sizeof(s32)); 1493 if (error) 1494 return (error); 1495 CP(s32[0], s[0], tv_sec); 1496 CP(s32[0], s[0], tv_usec); 1497 CP(s32[1], s[1], tv_sec); 1498 CP(s32[1], s[1], tv_usec); 1499 sp = s; 1500 } else 1501 sp = NULL; 1502 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1503 } 1504 1505 int 1506 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1507 { 1508 struct timeval32 s32[2]; 1509 struct timeval s[2], *sp; 1510 int error; 1511 1512 if (uap->tptr != NULL) { 1513 error = copyin(uap->tptr, s32, sizeof(s32)); 1514 if (error) 1515 return (error); 1516 CP(s32[0], s[0], tv_sec); 1517 CP(s32[0], s[0], tv_usec); 1518 CP(s32[1], s[1], tv_sec); 1519 CP(s32[1], s[1], tv_usec); 1520 sp = s; 1521 } else 1522 sp = NULL; 1523 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1524 } 1525 1526 int 1527 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1528 { 1529 struct timeval32 s32[2]; 1530 struct timeval s[2], *sp; 1531 int error; 1532 1533 if (uap->times != NULL) { 1534 error = copyin(uap->times, s32, sizeof(s32)); 1535 if (error) 1536 return (error); 1537 CP(s32[0], s[0], tv_sec); 1538 CP(s32[0], s[0], tv_usec); 1539 CP(s32[1], s[1], tv_sec); 1540 CP(s32[1], s[1], tv_usec); 1541 sp = s; 1542 } else 1543 sp = NULL; 1544 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1545 sp, UIO_SYSSPACE)); 1546 } 1547 1548 int 1549 freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap) 1550 { 1551 struct timespec32 ts32[2]; 1552 struct timespec ts[2], *tsp; 1553 int error; 1554 1555 if (uap->times != NULL) { 1556 error = copyin(uap->times, ts32, sizeof(ts32)); 1557 if (error) 1558 return (error); 1559 CP(ts32[0], ts[0], tv_sec); 1560 CP(ts32[0], ts[0], tv_nsec); 1561 CP(ts32[1], ts[1], tv_sec); 1562 CP(ts32[1], ts[1], tv_nsec); 1563 tsp = ts; 1564 } else 1565 tsp = NULL; 1566 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE)); 1567 } 1568 1569 int 1570 freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap) 1571 { 1572 struct timespec32 ts32[2]; 1573 struct timespec ts[2], *tsp; 1574 int error; 1575 1576 if (uap->times != NULL) { 1577 error = copyin(uap->times, ts32, sizeof(ts32)); 1578 if (error) 1579 return (error); 1580 CP(ts32[0], ts[0], tv_sec); 1581 CP(ts32[0], ts[0], tv_nsec); 1582 CP(ts32[1], ts[1], tv_sec); 1583 CP(ts32[1], ts[1], tv_nsec); 1584 tsp = ts; 1585 } else 1586 tsp = NULL; 1587 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE, 1588 tsp, UIO_SYSSPACE, uap->flag)); 1589 } 1590 1591 int 1592 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1593 { 1594 struct timeval32 tv32; 1595 struct timeval delta, olddelta, *deltap; 1596 int error; 1597 1598 if (uap->delta) { 1599 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1600 if (error) 1601 return (error); 1602 CP(tv32, delta, tv_sec); 1603 CP(tv32, delta, tv_usec); 1604 deltap = δ 1605 } else 1606 deltap = NULL; 1607 error = kern_adjtime(td, deltap, &olddelta); 1608 if (uap->olddelta && error == 0) { 1609 CP(olddelta, tv32, tv_sec); 1610 CP(olddelta, tv32, tv_usec); 1611 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1612 } 1613 return (error); 1614 } 1615 1616 #ifdef COMPAT_FREEBSD4 1617 int 1618 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1619 { 1620 struct statfs32 s32; 1621 struct statfs *sp; 1622 int error; 1623 1624 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1625 error = kern_statfs(td, uap->path, UIO_USERSPACE, sp); 1626 if (error == 0) { 1627 copy_statfs(sp, &s32); 1628 error = copyout(&s32, uap->buf, sizeof(s32)); 1629 } 1630 free(sp, M_STATFS); 1631 return (error); 1632 } 1633 #endif 1634 1635 #ifdef COMPAT_FREEBSD4 1636 int 1637 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1638 { 1639 struct statfs32 s32; 1640 struct statfs *sp; 1641 int error; 1642 1643 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1644 error = kern_fstatfs(td, uap->fd, sp); 1645 if (error == 0) { 1646 copy_statfs(sp, &s32); 1647 error = copyout(&s32, uap->buf, sizeof(s32)); 1648 } 1649 free(sp, M_STATFS); 1650 return (error); 1651 } 1652 #endif 1653 1654 #ifdef COMPAT_FREEBSD4 1655 int 1656 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1657 { 1658 struct statfs32 s32; 1659 struct statfs *sp; 1660 fhandle_t fh; 1661 int error; 1662 1663 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1664 return (error); 1665 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1666 error = kern_fhstatfs(td, fh, sp); 1667 if (error == 0) { 1668 copy_statfs(sp, &s32); 1669 error = copyout(&s32, uap->buf, sizeof(s32)); 1670 } 1671 free(sp, M_STATFS); 1672 return (error); 1673 } 1674 #endif 1675 1676 int 1677 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1678 { 1679 1680 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte, 1681 PAIR32TO64(off_t, uap->offset))); 1682 } 1683 1684 int 1685 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1686 { 1687 1688 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte, 1689 PAIR32TO64(off_t, uap->offset))); 1690 } 1691 1692 #ifdef COMPAT_43 1693 int 1694 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1695 { 1696 1697 return (kern_lseek(td, uap->fd, uap->offset, uap->whence)); 1698 } 1699 #endif 1700 1701 int 1702 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1703 { 1704 int error; 1705 off_t pos; 1706 1707 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset), 1708 uap->whence); 1709 /* Expand the quad return into two parts for eax and edx */ 1710 pos = td->td_uretoff.tdu_off; 1711 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1712 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1713 return error; 1714 } 1715 1716 int 1717 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1718 { 1719 1720 return (kern_truncate(td, uap->path, UIO_USERSPACE, 1721 PAIR32TO64(off_t, uap->length))); 1722 } 1723 1724 int 1725 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1726 { 1727 1728 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length))); 1729 } 1730 1731 #ifdef COMPAT_43 1732 int 1733 ofreebsd32_getdirentries(struct thread *td, 1734 struct ofreebsd32_getdirentries_args *uap) 1735 { 1736 struct ogetdirentries_args ap; 1737 int error; 1738 long loff; 1739 int32_t loff_cut; 1740 1741 ap.fd = uap->fd; 1742 ap.buf = uap->buf; 1743 ap.count = uap->count; 1744 ap.basep = NULL; 1745 error = kern_ogetdirentries(td, &ap, &loff); 1746 if (error == 0) { 1747 loff_cut = loff; 1748 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1749 } 1750 return (error); 1751 } 1752 #endif 1753 1754 #if defined(COMPAT_FREEBSD11) 1755 int 1756 freebsd11_freebsd32_getdirentries(struct thread *td, 1757 struct freebsd11_freebsd32_getdirentries_args *uap) 1758 { 1759 long base; 1760 int32_t base32; 1761 int error; 1762 1763 error = freebsd11_kern_getdirentries(td, uap->fd, uap->buf, uap->count, 1764 &base, NULL); 1765 if (error) 1766 return (error); 1767 if (uap->basep != NULL) { 1768 base32 = base; 1769 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1770 } 1771 return (error); 1772 } 1773 1774 int 1775 freebsd11_freebsd32_getdents(struct thread *td, 1776 struct freebsd11_freebsd32_getdents_args *uap) 1777 { 1778 struct freebsd11_freebsd32_getdirentries_args ap; 1779 1780 ap.fd = uap->fd; 1781 ap.buf = uap->buf; 1782 ap.count = uap->count; 1783 ap.basep = NULL; 1784 return (freebsd11_freebsd32_getdirentries(td, &ap)); 1785 } 1786 #endif /* COMPAT_FREEBSD11 */ 1787 1788 #ifdef COMPAT_FREEBSD6 1789 /* versions with the 'int pad' argument */ 1790 int 1791 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1792 { 1793 1794 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte, 1795 PAIR32TO64(off_t, uap->offset))); 1796 } 1797 1798 int 1799 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1800 { 1801 1802 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte, 1803 PAIR32TO64(off_t, uap->offset))); 1804 } 1805 1806 int 1807 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1808 { 1809 int error; 1810 off_t pos; 1811 1812 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset), 1813 uap->whence); 1814 /* Expand the quad return into two parts for eax and edx */ 1815 pos = *(off_t *)(td->td_retval); 1816 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1817 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1818 return error; 1819 } 1820 1821 int 1822 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1823 { 1824 1825 return (kern_truncate(td, uap->path, UIO_USERSPACE, 1826 PAIR32TO64(off_t, uap->length))); 1827 } 1828 1829 int 1830 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1831 { 1832 1833 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length))); 1834 } 1835 #endif /* COMPAT_FREEBSD6 */ 1836 1837 struct sf_hdtr32 { 1838 uint32_t headers; 1839 int hdr_cnt; 1840 uint32_t trailers; 1841 int trl_cnt; 1842 }; 1843 1844 static int 1845 freebsd32_do_sendfile(struct thread *td, 1846 struct freebsd32_sendfile_args *uap, int compat) 1847 { 1848 struct sf_hdtr32 hdtr32; 1849 struct sf_hdtr hdtr; 1850 struct uio *hdr_uio, *trl_uio; 1851 struct file *fp; 1852 cap_rights_t rights; 1853 struct iovec32 *iov32; 1854 off_t offset, sbytes; 1855 int error; 1856 1857 offset = PAIR32TO64(off_t, uap->offset); 1858 if (offset < 0) 1859 return (EINVAL); 1860 1861 hdr_uio = trl_uio = NULL; 1862 1863 if (uap->hdtr != NULL) { 1864 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1865 if (error) 1866 goto out; 1867 PTRIN_CP(hdtr32, hdtr, headers); 1868 CP(hdtr32, hdtr, hdr_cnt); 1869 PTRIN_CP(hdtr32, hdtr, trailers); 1870 CP(hdtr32, hdtr, trl_cnt); 1871 1872 if (hdtr.headers != NULL) { 1873 iov32 = PTRIN(hdtr32.headers); 1874 error = freebsd32_copyinuio(iov32, 1875 hdtr32.hdr_cnt, &hdr_uio); 1876 if (error) 1877 goto out; 1878 #ifdef COMPAT_FREEBSD4 1879 /* 1880 * In FreeBSD < 5.0 the nbytes to send also included 1881 * the header. If compat is specified subtract the 1882 * header size from nbytes. 1883 */ 1884 if (compat) { 1885 if (uap->nbytes > hdr_uio->uio_resid) 1886 uap->nbytes -= hdr_uio->uio_resid; 1887 else 1888 uap->nbytes = 0; 1889 } 1890 #endif 1891 } 1892 if (hdtr.trailers != NULL) { 1893 iov32 = PTRIN(hdtr32.trailers); 1894 error = freebsd32_copyinuio(iov32, 1895 hdtr32.trl_cnt, &trl_uio); 1896 if (error) 1897 goto out; 1898 } 1899 } 1900 1901 AUDIT_ARG_FD(uap->fd); 1902 1903 if ((error = fget_read(td, uap->fd, 1904 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) 1905 goto out; 1906 1907 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1908 uap->nbytes, &sbytes, uap->flags, td); 1909 fdrop(fp, td); 1910 1911 if (uap->sbytes != NULL) 1912 copyout(&sbytes, uap->sbytes, sizeof(off_t)); 1913 1914 out: 1915 if (hdr_uio) 1916 free(hdr_uio, M_IOV); 1917 if (trl_uio) 1918 free(trl_uio, M_IOV); 1919 return (error); 1920 } 1921 1922 #ifdef COMPAT_FREEBSD4 1923 int 1924 freebsd4_freebsd32_sendfile(struct thread *td, 1925 struct freebsd4_freebsd32_sendfile_args *uap) 1926 { 1927 return (freebsd32_do_sendfile(td, 1928 (struct freebsd32_sendfile_args *)uap, 1)); 1929 } 1930 #endif 1931 1932 int 1933 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1934 { 1935 1936 return (freebsd32_do_sendfile(td, uap, 0)); 1937 } 1938 1939 static void 1940 copy_stat(struct stat *in, struct stat32 *out) 1941 { 1942 1943 CP(*in, *out, st_dev); 1944 CP(*in, *out, st_ino); 1945 CP(*in, *out, st_mode); 1946 CP(*in, *out, st_nlink); 1947 CP(*in, *out, st_uid); 1948 CP(*in, *out, st_gid); 1949 CP(*in, *out, st_rdev); 1950 TS_CP(*in, *out, st_atim); 1951 TS_CP(*in, *out, st_mtim); 1952 TS_CP(*in, *out, st_ctim); 1953 CP(*in, *out, st_size); 1954 CP(*in, *out, st_blocks); 1955 CP(*in, *out, st_blksize); 1956 CP(*in, *out, st_flags); 1957 CP(*in, *out, st_gen); 1958 TS_CP(*in, *out, st_birthtim); 1959 out->st_padding0 = 0; 1960 out->st_padding1 = 0; 1961 #ifdef __STAT32_TIME_T_EXT 1962 out->st_atim_ext = 0; 1963 out->st_mtim_ext = 0; 1964 out->st_ctim_ext = 0; 1965 out->st_btim_ext = 0; 1966 #endif 1967 bzero(out->st_spare, sizeof(out->st_spare)); 1968 } 1969 1970 #ifdef COMPAT_43 1971 static void 1972 copy_ostat(struct stat *in, struct ostat32 *out) 1973 { 1974 1975 CP(*in, *out, st_dev); 1976 CP(*in, *out, st_ino); 1977 CP(*in, *out, st_mode); 1978 CP(*in, *out, st_nlink); 1979 CP(*in, *out, st_uid); 1980 CP(*in, *out, st_gid); 1981 CP(*in, *out, st_rdev); 1982 CP(*in, *out, st_size); 1983 TS_CP(*in, *out, st_atim); 1984 TS_CP(*in, *out, st_mtim); 1985 TS_CP(*in, *out, st_ctim); 1986 CP(*in, *out, st_blksize); 1987 CP(*in, *out, st_blocks); 1988 CP(*in, *out, st_flags); 1989 CP(*in, *out, st_gen); 1990 } 1991 #endif 1992 1993 #ifdef COMPAT_43 1994 int 1995 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1996 { 1997 struct stat sb; 1998 struct ostat32 sb32; 1999 int error; 2000 2001 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 2002 &sb, NULL); 2003 if (error) 2004 return (error); 2005 copy_ostat(&sb, &sb32); 2006 error = copyout(&sb32, uap->ub, sizeof (sb32)); 2007 return (error); 2008 } 2009 #endif 2010 2011 int 2012 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 2013 { 2014 struct stat ub; 2015 struct stat32 ub32; 2016 int error; 2017 2018 error = kern_fstat(td, uap->fd, &ub); 2019 if (error) 2020 return (error); 2021 copy_stat(&ub, &ub32); 2022 error = copyout(&ub32, uap->ub, sizeof(ub32)); 2023 return (error); 2024 } 2025 2026 #ifdef COMPAT_43 2027 int 2028 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 2029 { 2030 struct stat ub; 2031 struct ostat32 ub32; 2032 int error; 2033 2034 error = kern_fstat(td, uap->fd, &ub); 2035 if (error) 2036 return (error); 2037 copy_ostat(&ub, &ub32); 2038 error = copyout(&ub32, uap->ub, sizeof(ub32)); 2039 return (error); 2040 } 2041 #endif 2042 2043 int 2044 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 2045 { 2046 struct stat ub; 2047 struct stat32 ub32; 2048 int error; 2049 2050 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, 2051 &ub, NULL); 2052 if (error) 2053 return (error); 2054 copy_stat(&ub, &ub32); 2055 error = copyout(&ub32, uap->buf, sizeof(ub32)); 2056 return (error); 2057 } 2058 2059 #ifdef COMPAT_43 2060 int 2061 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 2062 { 2063 struct stat sb; 2064 struct ostat32 sb32; 2065 int error; 2066 2067 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 2068 UIO_USERSPACE, &sb, NULL); 2069 if (error) 2070 return (error); 2071 copy_ostat(&sb, &sb32); 2072 error = copyout(&sb32, uap->ub, sizeof (sb32)); 2073 return (error); 2074 } 2075 #endif 2076 2077 int 2078 freebsd32_fhstat(struct thread *td, struct freebsd32_fhstat_args *uap) 2079 { 2080 struct stat sb; 2081 struct stat32 sb32; 2082 struct fhandle fh; 2083 int error; 2084 2085 error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t)); 2086 if (error != 0) 2087 return (error); 2088 error = kern_fhstat(td, fh, &sb); 2089 if (error != 0) 2090 return (error); 2091 copy_stat(&sb, &sb32); 2092 error = copyout(&sb32, uap->sb, sizeof (sb32)); 2093 return (error); 2094 } 2095 2096 #if defined(COMPAT_FREEBSD11) 2097 extern int ino64_trunc_error; 2098 2099 static int 2100 freebsd11_cvtstat32(struct stat *in, struct freebsd11_stat32 *out) 2101 { 2102 2103 CP(*in, *out, st_ino); 2104 if (in->st_ino != out->st_ino) { 2105 switch (ino64_trunc_error) { 2106 default: 2107 case 0: 2108 break; 2109 case 1: 2110 return (EOVERFLOW); 2111 case 2: 2112 out->st_ino = UINT32_MAX; 2113 break; 2114 } 2115 } 2116 CP(*in, *out, st_nlink); 2117 if (in->st_nlink != out->st_nlink) { 2118 switch (ino64_trunc_error) { 2119 default: 2120 case 0: 2121 break; 2122 case 1: 2123 return (EOVERFLOW); 2124 case 2: 2125 out->st_nlink = UINT16_MAX; 2126 break; 2127 } 2128 } 2129 CP(*in, *out, st_dev); 2130 CP(*in, *out, st_mode); 2131 CP(*in, *out, st_uid); 2132 CP(*in, *out, st_gid); 2133 CP(*in, *out, st_rdev); 2134 TS_CP(*in, *out, st_atim); 2135 TS_CP(*in, *out, st_mtim); 2136 TS_CP(*in, *out, st_ctim); 2137 CP(*in, *out, st_size); 2138 CP(*in, *out, st_blocks); 2139 CP(*in, *out, st_blksize); 2140 CP(*in, *out, st_flags); 2141 CP(*in, *out, st_gen); 2142 TS_CP(*in, *out, st_birthtim); 2143 out->st_lspare = 0; 2144 bzero((char *)&out->st_birthtim + sizeof(out->st_birthtim), 2145 sizeof(*out) - offsetof(struct freebsd11_stat32, 2146 st_birthtim) - sizeof(out->st_birthtim)); 2147 return (0); 2148 } 2149 2150 int 2151 freebsd11_freebsd32_stat(struct thread *td, 2152 struct freebsd11_freebsd32_stat_args *uap) 2153 { 2154 struct stat sb; 2155 struct freebsd11_stat32 sb32; 2156 int error; 2157 2158 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 2159 &sb, NULL); 2160 if (error != 0) 2161 return (error); 2162 error = freebsd11_cvtstat32(&sb, &sb32); 2163 if (error == 0) 2164 error = copyout(&sb32, uap->ub, sizeof (sb32)); 2165 return (error); 2166 } 2167 2168 int 2169 freebsd11_freebsd32_fstat(struct thread *td, 2170 struct freebsd11_freebsd32_fstat_args *uap) 2171 { 2172 struct stat sb; 2173 struct freebsd11_stat32 sb32; 2174 int error; 2175 2176 error = kern_fstat(td, uap->fd, &sb); 2177 if (error != 0) 2178 return (error); 2179 error = freebsd11_cvtstat32(&sb, &sb32); 2180 if (error == 0) 2181 error = copyout(&sb32, uap->ub, sizeof (sb32)); 2182 return (error); 2183 } 2184 2185 int 2186 freebsd11_freebsd32_fstatat(struct thread *td, 2187 struct freebsd11_freebsd32_fstatat_args *uap) 2188 { 2189 struct stat sb; 2190 struct freebsd11_stat32 sb32; 2191 int error; 2192 2193 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, 2194 &sb, NULL); 2195 if (error != 0) 2196 return (error); 2197 error = freebsd11_cvtstat32(&sb, &sb32); 2198 if (error == 0) 2199 error = copyout(&sb32, uap->buf, sizeof (sb32)); 2200 return (error); 2201 } 2202 2203 int 2204 freebsd11_freebsd32_lstat(struct thread *td, 2205 struct freebsd11_freebsd32_lstat_args *uap) 2206 { 2207 struct stat sb; 2208 struct freebsd11_stat32 sb32; 2209 int error; 2210 2211 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 2212 UIO_USERSPACE, &sb, NULL); 2213 if (error != 0) 2214 return (error); 2215 error = freebsd11_cvtstat32(&sb, &sb32); 2216 if (error == 0) 2217 error = copyout(&sb32, uap->ub, sizeof (sb32)); 2218 return (error); 2219 } 2220 2221 int 2222 freebsd11_freebsd32_fhstat(struct thread *td, 2223 struct freebsd11_freebsd32_fhstat_args *uap) 2224 { 2225 struct stat sb; 2226 struct freebsd11_stat32 sb32; 2227 struct fhandle fh; 2228 int error; 2229 2230 error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t)); 2231 if (error != 0) 2232 return (error); 2233 error = kern_fhstat(td, fh, &sb); 2234 if (error != 0) 2235 return (error); 2236 error = freebsd11_cvtstat32(&sb, &sb32); 2237 if (error == 0) 2238 error = copyout(&sb32, uap->sb, sizeof (sb32)); 2239 return (error); 2240 } 2241 #endif 2242 2243 int 2244 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 2245 { 2246 int error, name[CTL_MAXNAME]; 2247 size_t j, oldlen; 2248 uint32_t tmp; 2249 2250 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 2251 return (EINVAL); 2252 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 2253 if (error) 2254 return (error); 2255 if (uap->oldlenp) { 2256 error = fueword32(uap->oldlenp, &tmp); 2257 oldlen = tmp; 2258 } else { 2259 oldlen = 0; 2260 } 2261 if (error != 0) 2262 return (EFAULT); 2263 error = userland_sysctl(td, name, uap->namelen, 2264 uap->old, &oldlen, 1, 2265 uap->new, uap->newlen, &j, SCTL_MASK32); 2266 if (error) 2267 return (error); 2268 if (uap->oldlenp) 2269 suword32(uap->oldlenp, j); 2270 return (0); 2271 } 2272 2273 int 2274 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 2275 { 2276 uint32_t version; 2277 int error; 2278 struct jail j; 2279 2280 error = copyin(uap->jail, &version, sizeof(uint32_t)); 2281 if (error) 2282 return (error); 2283 2284 switch (version) { 2285 case 0: 2286 { 2287 /* FreeBSD single IPv4 jails. */ 2288 struct jail32_v0 j32_v0; 2289 2290 bzero(&j, sizeof(struct jail)); 2291 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 2292 if (error) 2293 return (error); 2294 CP(j32_v0, j, version); 2295 PTRIN_CP(j32_v0, j, path); 2296 PTRIN_CP(j32_v0, j, hostname); 2297 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 2298 break; 2299 } 2300 2301 case 1: 2302 /* 2303 * Version 1 was used by multi-IPv4 jail implementations 2304 * that never made it into the official kernel. 2305 */ 2306 return (EINVAL); 2307 2308 case 2: /* JAIL_API_VERSION */ 2309 { 2310 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 2311 struct jail32 j32; 2312 2313 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 2314 if (error) 2315 return (error); 2316 CP(j32, j, version); 2317 PTRIN_CP(j32, j, path); 2318 PTRIN_CP(j32, j, hostname); 2319 PTRIN_CP(j32, j, jailname); 2320 CP(j32, j, ip4s); 2321 CP(j32, j, ip6s); 2322 PTRIN_CP(j32, j, ip4); 2323 PTRIN_CP(j32, j, ip6); 2324 break; 2325 } 2326 2327 default: 2328 /* Sci-Fi jails are not supported, sorry. */ 2329 return (EINVAL); 2330 } 2331 return (kern_jail(td, &j)); 2332 } 2333 2334 int 2335 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 2336 { 2337 struct uio *auio; 2338 int error; 2339 2340 /* Check that we have an even number of iovecs. */ 2341 if (uap->iovcnt & 1) 2342 return (EINVAL); 2343 2344 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2345 if (error) 2346 return (error); 2347 error = kern_jail_set(td, auio, uap->flags); 2348 free(auio, M_IOV); 2349 return (error); 2350 } 2351 2352 int 2353 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 2354 { 2355 struct iovec32 iov32; 2356 struct uio *auio; 2357 int error, i; 2358 2359 /* Check that we have an even number of iovecs. */ 2360 if (uap->iovcnt & 1) 2361 return (EINVAL); 2362 2363 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2364 if (error) 2365 return (error); 2366 error = kern_jail_get(td, auio, uap->flags); 2367 if (error == 0) 2368 for (i = 0; i < uap->iovcnt; i++) { 2369 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 2370 CP(auio->uio_iov[i], iov32, iov_len); 2371 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 2372 if (error != 0) 2373 break; 2374 } 2375 free(auio, M_IOV); 2376 return (error); 2377 } 2378 2379 int 2380 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2381 { 2382 struct sigaction32 s32; 2383 struct sigaction sa, osa, *sap; 2384 int error; 2385 2386 if (uap->act) { 2387 error = copyin(uap->act, &s32, sizeof(s32)); 2388 if (error) 2389 return (error); 2390 sa.sa_handler = PTRIN(s32.sa_u); 2391 CP(s32, sa, sa_flags); 2392 CP(s32, sa, sa_mask); 2393 sap = &sa; 2394 } else 2395 sap = NULL; 2396 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2397 if (error == 0 && uap->oact != NULL) { 2398 s32.sa_u = PTROUT(osa.sa_handler); 2399 CP(osa, s32, sa_flags); 2400 CP(osa, s32, sa_mask); 2401 error = copyout(&s32, uap->oact, sizeof(s32)); 2402 } 2403 return (error); 2404 } 2405 2406 #ifdef COMPAT_FREEBSD4 2407 int 2408 freebsd4_freebsd32_sigaction(struct thread *td, 2409 struct freebsd4_freebsd32_sigaction_args *uap) 2410 { 2411 struct sigaction32 s32; 2412 struct sigaction sa, osa, *sap; 2413 int error; 2414 2415 if (uap->act) { 2416 error = copyin(uap->act, &s32, sizeof(s32)); 2417 if (error) 2418 return (error); 2419 sa.sa_handler = PTRIN(s32.sa_u); 2420 CP(s32, sa, sa_flags); 2421 CP(s32, sa, sa_mask); 2422 sap = &sa; 2423 } else 2424 sap = NULL; 2425 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2426 if (error == 0 && uap->oact != NULL) { 2427 s32.sa_u = PTROUT(osa.sa_handler); 2428 CP(osa, s32, sa_flags); 2429 CP(osa, s32, sa_mask); 2430 error = copyout(&s32, uap->oact, sizeof(s32)); 2431 } 2432 return (error); 2433 } 2434 #endif 2435 2436 #ifdef COMPAT_43 2437 struct osigaction32 { 2438 u_int32_t sa_u; 2439 osigset_t sa_mask; 2440 int sa_flags; 2441 }; 2442 2443 #define ONSIG 32 2444 2445 int 2446 ofreebsd32_sigaction(struct thread *td, 2447 struct ofreebsd32_sigaction_args *uap) 2448 { 2449 struct osigaction32 s32; 2450 struct sigaction sa, osa, *sap; 2451 int error; 2452 2453 if (uap->signum <= 0 || uap->signum >= ONSIG) 2454 return (EINVAL); 2455 2456 if (uap->nsa) { 2457 error = copyin(uap->nsa, &s32, sizeof(s32)); 2458 if (error) 2459 return (error); 2460 sa.sa_handler = PTRIN(s32.sa_u); 2461 CP(s32, sa, sa_flags); 2462 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2463 sap = &sa; 2464 } else 2465 sap = NULL; 2466 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2467 if (error == 0 && uap->osa != NULL) { 2468 s32.sa_u = PTROUT(osa.sa_handler); 2469 CP(osa, s32, sa_flags); 2470 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2471 error = copyout(&s32, uap->osa, sizeof(s32)); 2472 } 2473 return (error); 2474 } 2475 2476 int 2477 ofreebsd32_sigprocmask(struct thread *td, 2478 struct ofreebsd32_sigprocmask_args *uap) 2479 { 2480 sigset_t set, oset; 2481 int error; 2482 2483 OSIG2SIG(uap->mask, set); 2484 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2485 SIG2OSIG(oset, td->td_retval[0]); 2486 return (error); 2487 } 2488 2489 int 2490 ofreebsd32_sigpending(struct thread *td, 2491 struct ofreebsd32_sigpending_args *uap) 2492 { 2493 struct proc *p = td->td_proc; 2494 sigset_t siglist; 2495 2496 PROC_LOCK(p); 2497 siglist = p->p_siglist; 2498 SIGSETOR(siglist, td->td_siglist); 2499 PROC_UNLOCK(p); 2500 SIG2OSIG(siglist, td->td_retval[0]); 2501 return (0); 2502 } 2503 2504 struct sigvec32 { 2505 u_int32_t sv_handler; 2506 int sv_mask; 2507 int sv_flags; 2508 }; 2509 2510 int 2511 ofreebsd32_sigvec(struct thread *td, 2512 struct ofreebsd32_sigvec_args *uap) 2513 { 2514 struct sigvec32 vec; 2515 struct sigaction sa, osa, *sap; 2516 int error; 2517 2518 if (uap->signum <= 0 || uap->signum >= ONSIG) 2519 return (EINVAL); 2520 2521 if (uap->nsv) { 2522 error = copyin(uap->nsv, &vec, sizeof(vec)); 2523 if (error) 2524 return (error); 2525 sa.sa_handler = PTRIN(vec.sv_handler); 2526 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2527 sa.sa_flags = vec.sv_flags; 2528 sa.sa_flags ^= SA_RESTART; 2529 sap = &sa; 2530 } else 2531 sap = NULL; 2532 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2533 if (error == 0 && uap->osv != NULL) { 2534 vec.sv_handler = PTROUT(osa.sa_handler); 2535 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2536 vec.sv_flags = osa.sa_flags; 2537 vec.sv_flags &= ~SA_NOCLDWAIT; 2538 vec.sv_flags ^= SA_RESTART; 2539 error = copyout(&vec, uap->osv, sizeof(vec)); 2540 } 2541 return (error); 2542 } 2543 2544 int 2545 ofreebsd32_sigblock(struct thread *td, 2546 struct ofreebsd32_sigblock_args *uap) 2547 { 2548 sigset_t set, oset; 2549 2550 OSIG2SIG(uap->mask, set); 2551 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2552 SIG2OSIG(oset, td->td_retval[0]); 2553 return (0); 2554 } 2555 2556 int 2557 ofreebsd32_sigsetmask(struct thread *td, 2558 struct ofreebsd32_sigsetmask_args *uap) 2559 { 2560 sigset_t set, oset; 2561 2562 OSIG2SIG(uap->mask, set); 2563 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2564 SIG2OSIG(oset, td->td_retval[0]); 2565 return (0); 2566 } 2567 2568 int 2569 ofreebsd32_sigsuspend(struct thread *td, 2570 struct ofreebsd32_sigsuspend_args *uap) 2571 { 2572 sigset_t mask; 2573 2574 OSIG2SIG(uap->mask, mask); 2575 return (kern_sigsuspend(td, mask)); 2576 } 2577 2578 struct sigstack32 { 2579 u_int32_t ss_sp; 2580 int ss_onstack; 2581 }; 2582 2583 int 2584 ofreebsd32_sigstack(struct thread *td, 2585 struct ofreebsd32_sigstack_args *uap) 2586 { 2587 struct sigstack32 s32; 2588 struct sigstack nss, oss; 2589 int error = 0, unss; 2590 2591 if (uap->nss != NULL) { 2592 error = copyin(uap->nss, &s32, sizeof(s32)); 2593 if (error) 2594 return (error); 2595 nss.ss_sp = PTRIN(s32.ss_sp); 2596 CP(s32, nss, ss_onstack); 2597 unss = 1; 2598 } else { 2599 unss = 0; 2600 } 2601 oss.ss_sp = td->td_sigstk.ss_sp; 2602 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2603 if (unss) { 2604 td->td_sigstk.ss_sp = nss.ss_sp; 2605 td->td_sigstk.ss_size = 0; 2606 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2607 td->td_pflags |= TDP_ALTSTACK; 2608 } 2609 if (uap->oss != NULL) { 2610 s32.ss_sp = PTROUT(oss.ss_sp); 2611 CP(oss, s32, ss_onstack); 2612 error = copyout(&s32, uap->oss, sizeof(s32)); 2613 } 2614 return (error); 2615 } 2616 #endif 2617 2618 int 2619 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2620 { 2621 2622 return (freebsd32_user_clock_nanosleep(td, CLOCK_REALTIME, 2623 TIMER_RELTIME, uap->rqtp, uap->rmtp)); 2624 } 2625 2626 int 2627 freebsd32_clock_nanosleep(struct thread *td, 2628 struct freebsd32_clock_nanosleep_args *uap) 2629 { 2630 int error; 2631 2632 error = freebsd32_user_clock_nanosleep(td, uap->clock_id, uap->flags, 2633 uap->rqtp, uap->rmtp); 2634 return (kern_posix_error(td, error)); 2635 } 2636 2637 static int 2638 freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id, 2639 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp) 2640 { 2641 struct timespec32 rmt32, rqt32; 2642 struct timespec rmt, rqt; 2643 int error; 2644 2645 error = copyin(ua_rqtp, &rqt32, sizeof(rqt32)); 2646 if (error) 2647 return (error); 2648 2649 CP(rqt32, rqt, tv_sec); 2650 CP(rqt32, rqt, tv_nsec); 2651 2652 if (ua_rmtp != NULL && (flags & TIMER_ABSTIME) == 0 && 2653 !useracc(ua_rmtp, sizeof(rmt32), VM_PROT_WRITE)) 2654 return (EFAULT); 2655 error = kern_clock_nanosleep(td, clock_id, flags, &rqt, &rmt); 2656 if (error == EINTR && ua_rmtp != NULL && (flags & TIMER_ABSTIME) == 0) { 2657 int error2; 2658 2659 CP(rmt, rmt32, tv_sec); 2660 CP(rmt, rmt32, tv_nsec); 2661 2662 error2 = copyout(&rmt32, ua_rmtp, sizeof(rmt32)); 2663 if (error2) 2664 error = error2; 2665 } 2666 return (error); 2667 } 2668 2669 int 2670 freebsd32_clock_gettime(struct thread *td, 2671 struct freebsd32_clock_gettime_args *uap) 2672 { 2673 struct timespec ats; 2674 struct timespec32 ats32; 2675 int error; 2676 2677 error = kern_clock_gettime(td, uap->clock_id, &ats); 2678 if (error == 0) { 2679 CP(ats, ats32, tv_sec); 2680 CP(ats, ats32, tv_nsec); 2681 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2682 } 2683 return (error); 2684 } 2685 2686 int 2687 freebsd32_clock_settime(struct thread *td, 2688 struct freebsd32_clock_settime_args *uap) 2689 { 2690 struct timespec ats; 2691 struct timespec32 ats32; 2692 int error; 2693 2694 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2695 if (error) 2696 return (error); 2697 CP(ats32, ats, tv_sec); 2698 CP(ats32, ats, tv_nsec); 2699 2700 return (kern_clock_settime(td, uap->clock_id, &ats)); 2701 } 2702 2703 int 2704 freebsd32_clock_getres(struct thread *td, 2705 struct freebsd32_clock_getres_args *uap) 2706 { 2707 struct timespec ts; 2708 struct timespec32 ts32; 2709 int error; 2710 2711 if (uap->tp == NULL) 2712 return (0); 2713 error = kern_clock_getres(td, uap->clock_id, &ts); 2714 if (error == 0) { 2715 CP(ts, ts32, tv_sec); 2716 CP(ts, ts32, tv_nsec); 2717 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2718 } 2719 return (error); 2720 } 2721 2722 int freebsd32_ktimer_create(struct thread *td, 2723 struct freebsd32_ktimer_create_args *uap) 2724 { 2725 struct sigevent32 ev32; 2726 struct sigevent ev, *evp; 2727 int error, id; 2728 2729 if (uap->evp == NULL) { 2730 evp = NULL; 2731 } else { 2732 evp = &ev; 2733 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2734 if (error != 0) 2735 return (error); 2736 error = convert_sigevent32(&ev32, &ev); 2737 if (error != 0) 2738 return (error); 2739 } 2740 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2741 if (error == 0) { 2742 error = copyout(&id, uap->timerid, sizeof(int)); 2743 if (error != 0) 2744 kern_ktimer_delete(td, id); 2745 } 2746 return (error); 2747 } 2748 2749 int 2750 freebsd32_ktimer_settime(struct thread *td, 2751 struct freebsd32_ktimer_settime_args *uap) 2752 { 2753 struct itimerspec32 val32, oval32; 2754 struct itimerspec val, oval, *ovalp; 2755 int error; 2756 2757 error = copyin(uap->value, &val32, sizeof(val32)); 2758 if (error != 0) 2759 return (error); 2760 ITS_CP(val32, val); 2761 ovalp = uap->ovalue != NULL ? &oval : NULL; 2762 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2763 if (error == 0 && uap->ovalue != NULL) { 2764 ITS_CP(oval, oval32); 2765 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2766 } 2767 return (error); 2768 } 2769 2770 int 2771 freebsd32_ktimer_gettime(struct thread *td, 2772 struct freebsd32_ktimer_gettime_args *uap) 2773 { 2774 struct itimerspec32 val32; 2775 struct itimerspec val; 2776 int error; 2777 2778 error = kern_ktimer_gettime(td, uap->timerid, &val); 2779 if (error == 0) { 2780 ITS_CP(val, val32); 2781 error = copyout(&val32, uap->value, sizeof(val32)); 2782 } 2783 return (error); 2784 } 2785 2786 int 2787 freebsd32_clock_getcpuclockid2(struct thread *td, 2788 struct freebsd32_clock_getcpuclockid2_args *uap) 2789 { 2790 clockid_t clk_id; 2791 int error; 2792 2793 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2794 uap->which, &clk_id); 2795 if (error == 0) 2796 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2797 return (error); 2798 } 2799 2800 int 2801 freebsd32_thr_new(struct thread *td, 2802 struct freebsd32_thr_new_args *uap) 2803 { 2804 struct thr_param32 param32; 2805 struct thr_param param; 2806 int error; 2807 2808 if (uap->param_size < 0 || 2809 uap->param_size > sizeof(struct thr_param32)) 2810 return (EINVAL); 2811 bzero(¶m, sizeof(struct thr_param)); 2812 bzero(¶m32, sizeof(struct thr_param32)); 2813 error = copyin(uap->param, ¶m32, uap->param_size); 2814 if (error != 0) 2815 return (error); 2816 param.start_func = PTRIN(param32.start_func); 2817 param.arg = PTRIN(param32.arg); 2818 param.stack_base = PTRIN(param32.stack_base); 2819 param.stack_size = param32.stack_size; 2820 param.tls_base = PTRIN(param32.tls_base); 2821 param.tls_size = param32.tls_size; 2822 param.child_tid = PTRIN(param32.child_tid); 2823 param.parent_tid = PTRIN(param32.parent_tid); 2824 param.flags = param32.flags; 2825 param.rtp = PTRIN(param32.rtp); 2826 param.spare[0] = PTRIN(param32.spare[0]); 2827 param.spare[1] = PTRIN(param32.spare[1]); 2828 param.spare[2] = PTRIN(param32.spare[2]); 2829 2830 return (kern_thr_new(td, ¶m)); 2831 } 2832 2833 int 2834 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2835 { 2836 struct timespec32 ts32; 2837 struct timespec ts, *tsp; 2838 int error; 2839 2840 error = 0; 2841 tsp = NULL; 2842 if (uap->timeout != NULL) { 2843 error = copyin((const void *)uap->timeout, (void *)&ts32, 2844 sizeof(struct timespec32)); 2845 if (error != 0) 2846 return (error); 2847 ts.tv_sec = ts32.tv_sec; 2848 ts.tv_nsec = ts32.tv_nsec; 2849 tsp = &ts; 2850 } 2851 return (kern_thr_suspend(td, tsp)); 2852 } 2853 2854 void 2855 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2856 { 2857 bzero(dst, sizeof(*dst)); 2858 dst->si_signo = src->si_signo; 2859 dst->si_errno = src->si_errno; 2860 dst->si_code = src->si_code; 2861 dst->si_pid = src->si_pid; 2862 dst->si_uid = src->si_uid; 2863 dst->si_status = src->si_status; 2864 dst->si_addr = (uintptr_t)src->si_addr; 2865 dst->si_value.sival_int = src->si_value.sival_int; 2866 dst->si_timerid = src->si_timerid; 2867 dst->si_overrun = src->si_overrun; 2868 } 2869 2870 #ifndef _FREEBSD32_SYSPROTO_H_ 2871 struct freebsd32_sigqueue_args { 2872 pid_t pid; 2873 int signum; 2874 /* union sigval32 */ int value; 2875 }; 2876 #endif 2877 int 2878 freebsd32_sigqueue(struct thread *td, struct freebsd32_sigqueue_args *uap) 2879 { 2880 union sigval sv; 2881 2882 /* 2883 * On 32-bit ABIs, sival_int and sival_ptr are the same. 2884 * On 64-bit little-endian ABIs, the low bits are the same. 2885 * In 64-bit big-endian ABIs, sival_int overlaps with 2886 * sival_ptr's HIGH bits. We choose to support sival_int 2887 * rather than sival_ptr in this case as it seems to be 2888 * more common. 2889 */ 2890 bzero(&sv, sizeof(sv)); 2891 sv.sival_int = uap->value; 2892 2893 return (kern_sigqueue(td, uap->pid, uap->signum, &sv)); 2894 } 2895 2896 int 2897 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2898 { 2899 struct timespec32 ts32; 2900 struct timespec ts; 2901 struct timespec *timeout; 2902 sigset_t set; 2903 ksiginfo_t ksi; 2904 struct siginfo32 si32; 2905 int error; 2906 2907 if (uap->timeout) { 2908 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2909 if (error) 2910 return (error); 2911 ts.tv_sec = ts32.tv_sec; 2912 ts.tv_nsec = ts32.tv_nsec; 2913 timeout = &ts; 2914 } else 2915 timeout = NULL; 2916 2917 error = copyin(uap->set, &set, sizeof(set)); 2918 if (error) 2919 return (error); 2920 2921 error = kern_sigtimedwait(td, set, &ksi, timeout); 2922 if (error) 2923 return (error); 2924 2925 if (uap->info) { 2926 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2927 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2928 } 2929 2930 if (error == 0) 2931 td->td_retval[0] = ksi.ksi_signo; 2932 return (error); 2933 } 2934 2935 /* 2936 * MPSAFE 2937 */ 2938 int 2939 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2940 { 2941 ksiginfo_t ksi; 2942 struct siginfo32 si32; 2943 sigset_t set; 2944 int error; 2945 2946 error = copyin(uap->set, &set, sizeof(set)); 2947 if (error) 2948 return (error); 2949 2950 error = kern_sigtimedwait(td, set, &ksi, NULL); 2951 if (error) 2952 return (error); 2953 2954 if (uap->info) { 2955 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2956 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2957 } 2958 if (error == 0) 2959 td->td_retval[0] = ksi.ksi_signo; 2960 return (error); 2961 } 2962 2963 int 2964 freebsd32_cpuset_setid(struct thread *td, 2965 struct freebsd32_cpuset_setid_args *uap) 2966 { 2967 2968 return (kern_cpuset_setid(td, uap->which, 2969 PAIR32TO64(id_t, uap->id), uap->setid)); 2970 } 2971 2972 int 2973 freebsd32_cpuset_getid(struct thread *td, 2974 struct freebsd32_cpuset_getid_args *uap) 2975 { 2976 2977 return (kern_cpuset_getid(td, uap->level, uap->which, 2978 PAIR32TO64(id_t, uap->id), uap->setid)); 2979 } 2980 2981 int 2982 freebsd32_cpuset_getaffinity(struct thread *td, 2983 struct freebsd32_cpuset_getaffinity_args *uap) 2984 { 2985 2986 return (kern_cpuset_getaffinity(td, uap->level, uap->which, 2987 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask)); 2988 } 2989 2990 int 2991 freebsd32_cpuset_setaffinity(struct thread *td, 2992 struct freebsd32_cpuset_setaffinity_args *uap) 2993 { 2994 2995 return (kern_cpuset_setaffinity(td, uap->level, uap->which, 2996 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask)); 2997 } 2998 2999 int 3000 freebsd32_cpuset_getdomain(struct thread *td, 3001 struct freebsd32_cpuset_getdomain_args *uap) 3002 { 3003 3004 return (kern_cpuset_getdomain(td, uap->level, uap->which, 3005 PAIR32TO64(id_t,uap->id), uap->domainsetsize, uap->mask, uap->policy)); 3006 } 3007 3008 int 3009 freebsd32_cpuset_setdomain(struct thread *td, 3010 struct freebsd32_cpuset_setdomain_args *uap) 3011 { 3012 3013 return (kern_cpuset_setdomain(td, uap->level, uap->which, 3014 PAIR32TO64(id_t,uap->id), uap->domainsetsize, uap->mask, uap->policy)); 3015 } 3016 3017 int 3018 freebsd32_nmount(struct thread *td, 3019 struct freebsd32_nmount_args /* { 3020 struct iovec *iovp; 3021 unsigned int iovcnt; 3022 int flags; 3023 } */ *uap) 3024 { 3025 struct uio *auio; 3026 uint64_t flags; 3027 int error; 3028 3029 /* 3030 * Mount flags are now 64-bits. On 32-bit archtectures only 3031 * 32-bits are passed in, but from here on everything handles 3032 * 64-bit flags correctly. 3033 */ 3034 flags = uap->flags; 3035 3036 AUDIT_ARG_FFLAGS(flags); 3037 3038 /* 3039 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 3040 * userspace to set this flag, but we must filter it out if we want 3041 * MNT_UPDATE on the root file system to work. 3042 * MNT_ROOTFS should only be set by the kernel when mounting its 3043 * root file system. 3044 */ 3045 flags &= ~MNT_ROOTFS; 3046 3047 /* 3048 * check that we have an even number of iovec's 3049 * and that we have at least two options. 3050 */ 3051 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 3052 return (EINVAL); 3053 3054 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 3055 if (error) 3056 return (error); 3057 error = vfs_donmount(td, flags, auio); 3058 3059 free(auio, M_IOV); 3060 return error; 3061 } 3062 3063 #if 0 3064 int 3065 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 3066 { 3067 struct yyy32 *p32, s32; 3068 struct yyy *p = NULL, s; 3069 struct xxx_arg ap; 3070 int error; 3071 3072 if (uap->zzz) { 3073 error = copyin(uap->zzz, &s32, sizeof(s32)); 3074 if (error) 3075 return (error); 3076 /* translate in */ 3077 p = &s; 3078 } 3079 error = kern_xxx(td, p); 3080 if (error) 3081 return (error); 3082 if (uap->zzz) { 3083 /* translate out */ 3084 error = copyout(&s32, p32, sizeof(s32)); 3085 } 3086 return (error); 3087 } 3088 #endif 3089 3090 int 3091 syscall32_module_handler(struct module *mod, int what, void *arg) 3092 { 3093 3094 return (kern_syscall_module_handler(freebsd32_sysent, mod, what, arg)); 3095 } 3096 3097 int 3098 syscall32_helper_register(struct syscall_helper_data *sd, int flags) 3099 { 3100 3101 return (kern_syscall_helper_register(freebsd32_sysent, sd, flags)); 3102 } 3103 3104 int 3105 syscall32_helper_unregister(struct syscall_helper_data *sd) 3106 { 3107 3108 return (kern_syscall_helper_unregister(freebsd32_sysent, sd)); 3109 } 3110 3111 register_t * 3112 freebsd32_copyout_strings(struct image_params *imgp) 3113 { 3114 int argc, envc, i; 3115 u_int32_t *vectp; 3116 char *stringp; 3117 uintptr_t destp; 3118 u_int32_t *stack_base; 3119 struct freebsd32_ps_strings *arginfo; 3120 char canary[sizeof(long) * 8]; 3121 int32_t pagesizes32[MAXPAGESIZES]; 3122 size_t execpath_len; 3123 int szsigcode; 3124 3125 /* 3126 * Calculate string base and vector table pointers. 3127 * Also deal with signal trampoline code for this exec type. 3128 */ 3129 if (imgp->execpath != NULL && imgp->auxargs != NULL) 3130 execpath_len = strlen(imgp->execpath) + 1; 3131 else 3132 execpath_len = 0; 3133 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 3134 sv_psstrings; 3135 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 3136 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 3137 else 3138 szsigcode = 0; 3139 destp = (uintptr_t)arginfo; 3140 3141 /* 3142 * install sigcode 3143 */ 3144 if (szsigcode != 0) { 3145 destp -= szsigcode; 3146 destp = rounddown2(destp, sizeof(uint32_t)); 3147 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 3148 szsigcode); 3149 } 3150 3151 /* 3152 * Copy the image path for the rtld. 3153 */ 3154 if (execpath_len != 0) { 3155 destp -= execpath_len; 3156 imgp->execpathp = destp; 3157 copyout(imgp->execpath, (void *)destp, execpath_len); 3158 } 3159 3160 /* 3161 * Prepare the canary for SSP. 3162 */ 3163 arc4rand(canary, sizeof(canary), 0); 3164 destp -= sizeof(canary); 3165 imgp->canary = destp; 3166 copyout(canary, (void *)destp, sizeof(canary)); 3167 imgp->canarylen = sizeof(canary); 3168 3169 /* 3170 * Prepare the pagesizes array. 3171 */ 3172 for (i = 0; i < MAXPAGESIZES; i++) 3173 pagesizes32[i] = (uint32_t)pagesizes[i]; 3174 destp -= sizeof(pagesizes32); 3175 destp = rounddown2(destp, sizeof(uint32_t)); 3176 imgp->pagesizes = destp; 3177 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 3178 imgp->pagesizeslen = sizeof(pagesizes32); 3179 3180 destp -= ARG_MAX - imgp->args->stringspace; 3181 destp = rounddown2(destp, sizeof(uint32_t)); 3182 3183 vectp = (uint32_t *)destp; 3184 if (imgp->auxargs) { 3185 /* 3186 * Allocate room on the stack for the ELF auxargs 3187 * array. It has up to AT_COUNT entries. 3188 */ 3189 vectp -= howmany(AT_COUNT * sizeof(Elf32_Auxinfo), 3190 sizeof(*vectp)); 3191 } 3192 3193 /* 3194 * Allocate room for the argv[] and env vectors including the 3195 * terminating NULL pointers. 3196 */ 3197 vectp -= imgp->args->argc + 1 + imgp->args->envc + 1; 3198 3199 /* 3200 * vectp also becomes our initial stack base 3201 */ 3202 stack_base = vectp; 3203 3204 stringp = imgp->args->begin_argv; 3205 argc = imgp->args->argc; 3206 envc = imgp->args->envc; 3207 /* 3208 * Copy out strings - arguments and environment. 3209 */ 3210 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 3211 3212 /* 3213 * Fill in "ps_strings" struct for ps, w, etc. 3214 */ 3215 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 3216 suword32(&arginfo->ps_nargvstr, argc); 3217 3218 /* 3219 * Fill in argument portion of vector table. 3220 */ 3221 for (; argc > 0; --argc) { 3222 suword32(vectp++, (u_int32_t)(intptr_t)destp); 3223 while (*stringp++ != 0) 3224 destp++; 3225 destp++; 3226 } 3227 3228 /* a null vector table pointer separates the argp's from the envp's */ 3229 suword32(vectp++, 0); 3230 3231 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 3232 suword32(&arginfo->ps_nenvstr, envc); 3233 3234 /* 3235 * Fill in environment portion of vector table. 3236 */ 3237 for (; envc > 0; --envc) { 3238 suword32(vectp++, (u_int32_t)(intptr_t)destp); 3239 while (*stringp++ != 0) 3240 destp++; 3241 destp++; 3242 } 3243 3244 /* end of vector table is a null pointer */ 3245 suword32(vectp, 0); 3246 3247 return ((register_t *)stack_base); 3248 } 3249 3250 int 3251 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 3252 { 3253 struct kld_file_stat *stat; 3254 struct kld32_file_stat *stat32; 3255 int error, version; 3256 3257 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 3258 != 0) 3259 return (error); 3260 if (version != sizeof(struct kld32_file_stat_1) && 3261 version != sizeof(struct kld32_file_stat)) 3262 return (EINVAL); 3263 3264 stat = malloc(sizeof(*stat), M_TEMP, M_WAITOK | M_ZERO); 3265 stat32 = malloc(sizeof(*stat32), M_TEMP, M_WAITOK | M_ZERO); 3266 error = kern_kldstat(td, uap->fileid, stat); 3267 if (error == 0) { 3268 bcopy(&stat->name[0], &stat32->name[0], sizeof(stat->name)); 3269 CP(*stat, *stat32, refs); 3270 CP(*stat, *stat32, id); 3271 PTROUT_CP(*stat, *stat32, address); 3272 CP(*stat, *stat32, size); 3273 bcopy(&stat->pathname[0], &stat32->pathname[0], 3274 sizeof(stat->pathname)); 3275 stat32->version = version; 3276 error = copyout(stat32, uap->stat, version); 3277 } 3278 free(stat, M_TEMP); 3279 free(stat32, M_TEMP); 3280 return (error); 3281 } 3282 3283 int 3284 freebsd32_posix_fallocate(struct thread *td, 3285 struct freebsd32_posix_fallocate_args *uap) 3286 { 3287 int error; 3288 3289 error = kern_posix_fallocate(td, uap->fd, 3290 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 3291 return (kern_posix_error(td, error)); 3292 } 3293 3294 int 3295 freebsd32_posix_fadvise(struct thread *td, 3296 struct freebsd32_posix_fadvise_args *uap) 3297 { 3298 int error; 3299 3300 error = kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset), 3301 PAIR32TO64(off_t, uap->len), uap->advice); 3302 return (kern_posix_error(td, error)); 3303 } 3304 3305 int 3306 convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 3307 { 3308 3309 CP(*sig32, *sig, sigev_notify); 3310 switch (sig->sigev_notify) { 3311 case SIGEV_NONE: 3312 break; 3313 case SIGEV_THREAD_ID: 3314 CP(*sig32, *sig, sigev_notify_thread_id); 3315 /* FALLTHROUGH */ 3316 case SIGEV_SIGNAL: 3317 CP(*sig32, *sig, sigev_signo); 3318 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3319 break; 3320 case SIGEV_KEVENT: 3321 CP(*sig32, *sig, sigev_notify_kqueue); 3322 CP(*sig32, *sig, sigev_notify_kevent_flags); 3323 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3324 break; 3325 default: 3326 return (EINVAL); 3327 } 3328 return (0); 3329 } 3330 3331 int 3332 freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3333 { 3334 void *data; 3335 union { 3336 struct procctl_reaper_status rs; 3337 struct procctl_reaper_pids rp; 3338 struct procctl_reaper_kill rk; 3339 } x; 3340 union { 3341 struct procctl_reaper_pids32 rp; 3342 } x32; 3343 int error, error1, flags, signum; 3344 3345 switch (uap->com) { 3346 case PROC_SPROTECT: 3347 case PROC_TRACE_CTL: 3348 case PROC_TRAPCAP_CTL: 3349 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3350 if (error != 0) 3351 return (error); 3352 data = &flags; 3353 break; 3354 case PROC_REAP_ACQUIRE: 3355 case PROC_REAP_RELEASE: 3356 if (uap->data != NULL) 3357 return (EINVAL); 3358 data = NULL; 3359 break; 3360 case PROC_REAP_STATUS: 3361 data = &x.rs; 3362 break; 3363 case PROC_REAP_GETPIDS: 3364 error = copyin(uap->data, &x32.rp, sizeof(x32.rp)); 3365 if (error != 0) 3366 return (error); 3367 CP(x32.rp, x.rp, rp_count); 3368 PTRIN_CP(x32.rp, x.rp, rp_pids); 3369 data = &x.rp; 3370 break; 3371 case PROC_REAP_KILL: 3372 error = copyin(uap->data, &x.rk, sizeof(x.rk)); 3373 if (error != 0) 3374 return (error); 3375 data = &x.rk; 3376 break; 3377 case PROC_TRACE_STATUS: 3378 case PROC_TRAPCAP_STATUS: 3379 data = &flags; 3380 break; 3381 case PROC_PDEATHSIG_CTL: 3382 error = copyin(uap->data, &signum, sizeof(signum)); 3383 if (error != 0) 3384 return (error); 3385 data = &signum; 3386 break; 3387 case PROC_PDEATHSIG_STATUS: 3388 data = &signum; 3389 break; 3390 default: 3391 return (EINVAL); 3392 } 3393 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3394 uap->com, data); 3395 switch (uap->com) { 3396 case PROC_REAP_STATUS: 3397 if (error == 0) 3398 error = copyout(&x.rs, uap->data, sizeof(x.rs)); 3399 break; 3400 case PROC_REAP_KILL: 3401 error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); 3402 if (error == 0) 3403 error = error1; 3404 break; 3405 case PROC_TRACE_STATUS: 3406 case PROC_TRAPCAP_STATUS: 3407 if (error == 0) 3408 error = copyout(&flags, uap->data, sizeof(flags)); 3409 break; 3410 case PROC_PDEATHSIG_STATUS: 3411 if (error == 0) 3412 error = copyout(&signum, uap->data, sizeof(signum)); 3413 break; 3414 } 3415 return (error); 3416 } 3417 3418 int 3419 freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 3420 { 3421 long tmp; 3422 3423 switch (uap->cmd) { 3424 /* 3425 * Do unsigned conversion for arg when operation 3426 * interprets it as flags or pointer. 3427 */ 3428 case F_SETLK_REMOTE: 3429 case F_SETLKW: 3430 case F_SETLK: 3431 case F_GETLK: 3432 case F_SETFD: 3433 case F_SETFL: 3434 case F_OGETLK: 3435 case F_OSETLK: 3436 case F_OSETLKW: 3437 tmp = (unsigned int)(uap->arg); 3438 break; 3439 default: 3440 tmp = uap->arg; 3441 break; 3442 } 3443 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 3444 } 3445 3446 int 3447 freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap) 3448 { 3449 struct timespec32 ts32; 3450 struct timespec ts, *tsp; 3451 sigset_t set, *ssp; 3452 int error; 3453 3454 if (uap->ts != NULL) { 3455 error = copyin(uap->ts, &ts32, sizeof(ts32)); 3456 if (error != 0) 3457 return (error); 3458 CP(ts32, ts, tv_sec); 3459 CP(ts32, ts, tv_nsec); 3460 tsp = &ts; 3461 } else 3462 tsp = NULL; 3463 if (uap->set != NULL) { 3464 error = copyin(uap->set, &set, sizeof(set)); 3465 if (error != 0) 3466 return (error); 3467 ssp = &set; 3468 } else 3469 ssp = NULL; 3470 3471 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp)); 3472 } 3473