1 /*- 2 * Copyright (c) 2002 Doug Rabson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_compat.h" 31 32 #include <sys/param.h> 33 #include <sys/bus.h> 34 #include <sys/clock.h> 35 #include <sys/exec.h> 36 #include <sys/fcntl.h> 37 #include <sys/filedesc.h> 38 #include <sys/imgact.h> 39 #include <sys/jail.h> 40 #include <sys/kernel.h> 41 #include <sys/limits.h> 42 #include <sys/lock.h> 43 #include <sys/malloc.h> 44 #include <sys/file.h> /* Must come after sys/malloc.h */ 45 #include <sys/mbuf.h> 46 #include <sys/mman.h> 47 #include <sys/module.h> 48 #include <sys/mount.h> 49 #include <sys/mutex.h> 50 #include <sys/namei.h> 51 #include <sys/proc.h> 52 #include <sys/reboot.h> 53 #include <sys/resource.h> 54 #include <sys/resourcevar.h> 55 #include <sys/selinfo.h> 56 #include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 57 #include <sys/pipe.h> /* Must come after sys/selinfo.h */ 58 #include <sys/signal.h> 59 #include <sys/signalvar.h> 60 #include <sys/socket.h> 61 #include <sys/socketvar.h> 62 #include <sys/stat.h> 63 #include <sys/syscall.h> 64 #include <sys/syscallsubr.h> 65 #include <sys/sysctl.h> 66 #include <sys/sysent.h> 67 #include <sys/sysproto.h> 68 #include <sys/systm.h> 69 #include <sys/thr.h> 70 #include <sys/unistd.h> 71 #include <sys/ucontext.h> 72 #include <sys/vnode.h> 73 #include <sys/wait.h> 74 #include <sys/ipc.h> 75 #include <sys/msg.h> 76 #include <sys/sem.h> 77 #include <sys/shm.h> 78 79 #include <vm/vm.h> 80 #include <vm/vm_kern.h> 81 #include <vm/vm_param.h> 82 #include <vm/pmap.h> 83 #include <vm/vm_map.h> 84 #include <vm/vm_object.h> 85 #include <vm/vm_extern.h> 86 87 #include <machine/cpu.h> 88 89 #include <security/audit/audit.h> 90 91 #include <compat/freebsd32/freebsd32_util.h> 92 #include <compat/freebsd32/freebsd32.h> 93 #include <compat/freebsd32/freebsd32_ipc.h> 94 #include <compat/freebsd32/freebsd32_signal.h> 95 #include <compat/freebsd32/freebsd32_proto.h> 96 97 CTASSERT(sizeof(struct timeval32) == 8); 98 CTASSERT(sizeof(struct timespec32) == 8); 99 CTASSERT(sizeof(struct itimerval32) == 16); 100 CTASSERT(sizeof(struct statfs32) == 256); 101 CTASSERT(sizeof(struct rusage32) == 72); 102 CTASSERT(sizeof(struct sigaltstack32) == 12); 103 CTASSERT(sizeof(struct kevent32) == 20); 104 CTASSERT(sizeof(struct iovec32) == 8); 105 CTASSERT(sizeof(struct msghdr32) == 28); 106 CTASSERT(sizeof(struct stat32) == 96); 107 CTASSERT(sizeof(struct sigaction32) == 24); 108 109 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 110 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 111 112 int 113 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 114 { 115 int error, status; 116 struct rusage32 ru32; 117 struct rusage ru, *rup; 118 119 if (uap->rusage != NULL) 120 rup = &ru; 121 else 122 rup = NULL; 123 error = kern_wait(td, uap->pid, &status, uap->options, rup); 124 if (error) 125 return (error); 126 if (uap->status != NULL) 127 error = copyout(&status, uap->status, sizeof(status)); 128 if (uap->rusage != NULL && error == 0) { 129 TV_CP(ru, ru32, ru_utime); 130 TV_CP(ru, ru32, ru_stime); 131 CP(ru, ru32, ru_maxrss); 132 CP(ru, ru32, ru_ixrss); 133 CP(ru, ru32, ru_idrss); 134 CP(ru, ru32, ru_isrss); 135 CP(ru, ru32, ru_minflt); 136 CP(ru, ru32, ru_majflt); 137 CP(ru, ru32, ru_nswap); 138 CP(ru, ru32, ru_inblock); 139 CP(ru, ru32, ru_oublock); 140 CP(ru, ru32, ru_msgsnd); 141 CP(ru, ru32, ru_msgrcv); 142 CP(ru, ru32, ru_nsignals); 143 CP(ru, ru32, ru_nvcsw); 144 CP(ru, ru32, ru_nivcsw); 145 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 146 } 147 return (error); 148 } 149 150 #ifdef COMPAT_FREEBSD4 151 static void 152 copy_statfs(struct statfs *in, struct statfs32 *out) 153 { 154 155 statfs_scale_blocks(in, INT32_MAX); 156 bzero(out, sizeof(*out)); 157 CP(*in, *out, f_bsize); 158 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 159 CP(*in, *out, f_blocks); 160 CP(*in, *out, f_bfree); 161 CP(*in, *out, f_bavail); 162 out->f_files = MIN(in->f_files, INT32_MAX); 163 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 164 CP(*in, *out, f_fsid); 165 CP(*in, *out, f_owner); 166 CP(*in, *out, f_type); 167 CP(*in, *out, f_flags); 168 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 169 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 170 strlcpy(out->f_fstypename, 171 in->f_fstypename, MFSNAMELEN); 172 strlcpy(out->f_mntonname, 173 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 174 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 175 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 176 strlcpy(out->f_mntfromname, 177 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 178 } 179 #endif 180 181 #ifdef COMPAT_FREEBSD4 182 int 183 freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 184 { 185 struct statfs *buf, *sp; 186 struct statfs32 stat32; 187 size_t count, size; 188 int error; 189 190 count = uap->bufsize / sizeof(struct statfs32); 191 size = count * sizeof(struct statfs); 192 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags); 193 if (size > 0) { 194 count = td->td_retval[0]; 195 sp = buf; 196 while (count > 0 && error == 0) { 197 copy_statfs(sp, &stat32); 198 error = copyout(&stat32, uap->buf, sizeof(stat32)); 199 sp++; 200 uap->buf++; 201 count--; 202 } 203 free(buf, M_TEMP); 204 } 205 return (error); 206 } 207 #endif 208 209 int 210 freebsd32_sigaltstack(struct thread *td, 211 struct freebsd32_sigaltstack_args *uap) 212 { 213 struct sigaltstack32 s32; 214 struct sigaltstack ss, oss, *ssp; 215 int error; 216 217 if (uap->ss != NULL) { 218 error = copyin(uap->ss, &s32, sizeof(s32)); 219 if (error) 220 return (error); 221 PTRIN_CP(s32, ss, ss_sp); 222 CP(s32, ss, ss_size); 223 CP(s32, ss, ss_flags); 224 ssp = &ss; 225 } else 226 ssp = NULL; 227 error = kern_sigaltstack(td, ssp, &oss); 228 if (error == 0 && uap->oss != NULL) { 229 PTROUT_CP(oss, s32, ss_sp); 230 CP(oss, s32, ss_size); 231 CP(oss, s32, ss_flags); 232 error = copyout(&s32, uap->oss, sizeof(s32)); 233 } 234 return (error); 235 } 236 237 /* 238 * Custom version of exec_copyin_args() so that we can translate 239 * the pointers. 240 */ 241 static int 242 freebsd32_exec_copyin_args(struct image_args *args, char *fname, 243 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 244 { 245 char *argp, *envp; 246 u_int32_t *p32, arg; 247 size_t length; 248 int error; 249 250 bzero(args, sizeof(*args)); 251 if (argv == NULL) 252 return (EFAULT); 253 254 /* 255 * Allocate temporary demand zeroed space for argument and 256 * environment strings 257 */ 258 args->buf = (char *) kmem_alloc_wait(exec_map, 259 PATH_MAX + ARG_MAX + MAXSHELLCMDLEN); 260 if (args->buf == NULL) 261 return (ENOMEM); 262 args->begin_argv = args->buf; 263 args->endp = args->begin_argv; 264 args->stringspace = ARG_MAX; 265 266 /* 267 * Copy the file name. 268 */ 269 if (fname != NULL) { 270 args->fname = args->buf + ARG_MAX; 271 error = (segflg == UIO_SYSSPACE) ? 272 copystr(fname, args->fname, PATH_MAX, &length) : 273 copyinstr(fname, args->fname, PATH_MAX, &length); 274 if (error != 0) 275 goto err_exit; 276 } else 277 args->fname = NULL; 278 279 /* 280 * extract arguments first 281 */ 282 p32 = argv; 283 for (;;) { 284 error = copyin(p32++, &arg, sizeof(arg)); 285 if (error) 286 goto err_exit; 287 if (arg == 0) 288 break; 289 argp = PTRIN(arg); 290 error = copyinstr(argp, args->endp, args->stringspace, &length); 291 if (error) { 292 if (error == ENAMETOOLONG) 293 error = E2BIG; 294 goto err_exit; 295 } 296 args->stringspace -= length; 297 args->endp += length; 298 args->argc++; 299 } 300 301 args->begin_envv = args->endp; 302 303 /* 304 * extract environment strings 305 */ 306 if (envv) { 307 p32 = envv; 308 for (;;) { 309 error = copyin(p32++, &arg, sizeof(arg)); 310 if (error) 311 goto err_exit; 312 if (arg == 0) 313 break; 314 envp = PTRIN(arg); 315 error = copyinstr(envp, args->endp, args->stringspace, 316 &length); 317 if (error) { 318 if (error == ENAMETOOLONG) 319 error = E2BIG; 320 goto err_exit; 321 } 322 args->stringspace -= length; 323 args->endp += length; 324 args->envc++; 325 } 326 } 327 328 return (0); 329 330 err_exit: 331 kmem_free_wakeup(exec_map, (vm_offset_t)args->buf, 332 PATH_MAX + ARG_MAX + MAXSHELLCMDLEN); 333 args->buf = NULL; 334 return (error); 335 } 336 337 int 338 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 339 { 340 struct image_args eargs; 341 int error; 342 343 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 344 uap->argv, uap->envv); 345 if (error == 0) 346 error = kern_execve(td, &eargs, NULL); 347 return (error); 348 } 349 350 int 351 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 352 { 353 struct image_args eargs; 354 int error; 355 356 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 357 uap->argv, uap->envv); 358 if (error == 0) { 359 eargs.fd = uap->fd; 360 error = kern_execve(td, &eargs, NULL); 361 } 362 return (error); 363 } 364 365 #ifdef __ia64__ 366 static int 367 freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 368 int prot, int fd, off_t pos) 369 { 370 vm_map_t map; 371 vm_map_entry_t entry; 372 int rv; 373 374 map = &td->td_proc->p_vmspace->vm_map; 375 if (fd != -1) 376 prot |= VM_PROT_WRITE; 377 378 if (vm_map_lookup_entry(map, start, &entry)) { 379 if ((entry->protection & prot) != prot) { 380 rv = vm_map_protect(map, 381 trunc_page(start), 382 round_page(end), 383 entry->protection | prot, 384 FALSE); 385 if (rv != KERN_SUCCESS) 386 return (EINVAL); 387 } 388 } else { 389 vm_offset_t addr = trunc_page(start); 390 rv = vm_map_find(map, 0, 0, 391 &addr, PAGE_SIZE, FALSE, prot, 392 VM_PROT_ALL, 0); 393 if (rv != KERN_SUCCESS) 394 return (EINVAL); 395 } 396 397 if (fd != -1) { 398 struct pread_args r; 399 r.fd = fd; 400 r.buf = (void *) start; 401 r.nbyte = end - start; 402 r.offset = pos; 403 return (pread(td, &r)); 404 } else { 405 while (start < end) { 406 subyte((void *) start, 0); 407 start++; 408 } 409 return (0); 410 } 411 } 412 #endif 413 414 int 415 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 416 { 417 struct mmap_args ap; 418 vm_offset_t addr = (vm_offset_t) uap->addr; 419 vm_size_t len = uap->len; 420 int prot = uap->prot; 421 int flags = uap->flags; 422 int fd = uap->fd; 423 off_t pos = (uap->poslo 424 | ((off_t)uap->poshi << 32)); 425 #ifdef __ia64__ 426 vm_size_t pageoff; 427 int error; 428 429 /* 430 * Attempt to handle page size hassles. 431 */ 432 pageoff = (pos & PAGE_MASK); 433 if (flags & MAP_FIXED) { 434 vm_offset_t start, end; 435 start = addr; 436 end = addr + len; 437 438 if (start != trunc_page(start)) { 439 error = freebsd32_mmap_partial(td, start, 440 round_page(start), prot, 441 fd, pos); 442 if (fd != -1) 443 pos += round_page(start) - start; 444 start = round_page(start); 445 } 446 if (end != round_page(end)) { 447 vm_offset_t t = trunc_page(end); 448 error = freebsd32_mmap_partial(td, t, end, 449 prot, fd, 450 pos + t - start); 451 end = trunc_page(end); 452 } 453 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 454 /* 455 * We can't map this region at all. The specified 456 * address doesn't have the same alignment as the file 457 * position. Fake the mapping by simply reading the 458 * entire region into memory. First we need to make 459 * sure the region exists. 460 */ 461 vm_map_t map; 462 struct pread_args r; 463 int rv; 464 465 prot |= VM_PROT_WRITE; 466 map = &td->td_proc->p_vmspace->vm_map; 467 rv = vm_map_remove(map, start, end); 468 if (rv != KERN_SUCCESS) 469 return (EINVAL); 470 rv = vm_map_find(map, 0, 0, 471 &start, end - start, FALSE, 472 prot, VM_PROT_ALL, 0); 473 if (rv != KERN_SUCCESS) 474 return (EINVAL); 475 r.fd = fd; 476 r.buf = (void *) start; 477 r.nbyte = end - start; 478 r.offset = pos; 479 error = pread(td, &r); 480 if (error) 481 return (error); 482 483 td->td_retval[0] = addr; 484 return (0); 485 } 486 if (end == start) { 487 /* 488 * After dealing with the ragged ends, there 489 * might be none left. 490 */ 491 td->td_retval[0] = addr; 492 return (0); 493 } 494 addr = start; 495 len = end - start; 496 } 497 #endif 498 499 ap.addr = (void *) addr; 500 ap.len = len; 501 ap.prot = prot; 502 ap.flags = flags; 503 ap.fd = fd; 504 ap.pos = pos; 505 506 return (mmap(td, &ap)); 507 } 508 509 #ifdef COMPAT_FREEBSD6 510 int 511 freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 512 { 513 struct freebsd32_mmap_args ap; 514 515 ap.addr = uap->addr; 516 ap.len = uap->len; 517 ap.prot = uap->prot; 518 ap.flags = uap->flags; 519 ap.fd = uap->fd; 520 ap.poslo = uap->poslo; 521 ap.poshi = uap->poshi; 522 523 return (freebsd32_mmap(td, &ap)); 524 } 525 #endif 526 527 int 528 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 529 { 530 struct itimerval itv, oitv, *itvp; 531 struct itimerval32 i32; 532 int error; 533 534 if (uap->itv != NULL) { 535 error = copyin(uap->itv, &i32, sizeof(i32)); 536 if (error) 537 return (error); 538 TV_CP(i32, itv, it_interval); 539 TV_CP(i32, itv, it_value); 540 itvp = &itv; 541 } else 542 itvp = NULL; 543 error = kern_setitimer(td, uap->which, itvp, &oitv); 544 if (error || uap->oitv == NULL) 545 return (error); 546 TV_CP(oitv, i32, it_interval); 547 TV_CP(oitv, i32, it_value); 548 return (copyout(&i32, uap->oitv, sizeof(i32))); 549 } 550 551 int 552 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 553 { 554 struct itimerval itv; 555 struct itimerval32 i32; 556 int error; 557 558 error = kern_getitimer(td, uap->which, &itv); 559 if (error || uap->itv == NULL) 560 return (error); 561 TV_CP(itv, i32, it_interval); 562 TV_CP(itv, i32, it_value); 563 return (copyout(&i32, uap->itv, sizeof(i32))); 564 } 565 566 int 567 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 568 { 569 struct timeval32 tv32; 570 struct timeval tv, *tvp; 571 int error; 572 573 if (uap->tv != NULL) { 574 error = copyin(uap->tv, &tv32, sizeof(tv32)); 575 if (error) 576 return (error); 577 CP(tv32, tv, tv_sec); 578 CP(tv32, tv, tv_usec); 579 tvp = &tv; 580 } else 581 tvp = NULL; 582 /* 583 * XXX big-endian needs to convert the fd_sets too. 584 * XXX Do pointers need PTRIN()? 585 */ 586 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp)); 587 } 588 589 /* 590 * Copy 'count' items into the destination list pointed to by uap->eventlist. 591 */ 592 static int 593 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 594 { 595 struct freebsd32_kevent_args *uap; 596 struct kevent32 ks32[KQ_NEVENTS]; 597 int i, error = 0; 598 599 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 600 uap = (struct freebsd32_kevent_args *)arg; 601 602 for (i = 0; i < count; i++) { 603 CP(kevp[i], ks32[i], ident); 604 CP(kevp[i], ks32[i], filter); 605 CP(kevp[i], ks32[i], flags); 606 CP(kevp[i], ks32[i], fflags); 607 CP(kevp[i], ks32[i], data); 608 PTROUT_CP(kevp[i], ks32[i], udata); 609 } 610 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 611 if (error == 0) 612 uap->eventlist += count; 613 return (error); 614 } 615 616 /* 617 * Copy 'count' items from the list pointed to by uap->changelist. 618 */ 619 static int 620 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 621 { 622 struct freebsd32_kevent_args *uap; 623 struct kevent32 ks32[KQ_NEVENTS]; 624 int i, error = 0; 625 626 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 627 uap = (struct freebsd32_kevent_args *)arg; 628 629 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 630 if (error) 631 goto done; 632 uap->changelist += count; 633 634 for (i = 0; i < count; i++) { 635 CP(ks32[i], kevp[i], ident); 636 CP(ks32[i], kevp[i], filter); 637 CP(ks32[i], kevp[i], flags); 638 CP(ks32[i], kevp[i], fflags); 639 CP(ks32[i], kevp[i], data); 640 PTRIN_CP(ks32[i], kevp[i], udata); 641 } 642 done: 643 return (error); 644 } 645 646 int 647 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 648 { 649 struct timespec32 ts32; 650 struct timespec ts, *tsp; 651 struct kevent_copyops k_ops = { uap, 652 freebsd32_kevent_copyout, 653 freebsd32_kevent_copyin}; 654 int error; 655 656 657 if (uap->timeout) { 658 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 659 if (error) 660 return (error); 661 CP(ts32, ts, tv_sec); 662 CP(ts32, ts, tv_nsec); 663 tsp = &ts; 664 } else 665 tsp = NULL; 666 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 667 &k_ops, tsp); 668 return (error); 669 } 670 671 int 672 freebsd32_gettimeofday(struct thread *td, 673 struct freebsd32_gettimeofday_args *uap) 674 { 675 struct timeval atv; 676 struct timeval32 atv32; 677 struct timezone rtz; 678 int error = 0; 679 680 if (uap->tp) { 681 microtime(&atv); 682 CP(atv, atv32, tv_sec); 683 CP(atv, atv32, tv_usec); 684 error = copyout(&atv32, uap->tp, sizeof (atv32)); 685 } 686 if (error == 0 && uap->tzp != NULL) { 687 rtz.tz_minuteswest = tz_minuteswest; 688 rtz.tz_dsttime = tz_dsttime; 689 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 690 } 691 return (error); 692 } 693 694 int 695 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 696 { 697 struct rusage32 s32; 698 struct rusage s; 699 int error; 700 701 error = kern_getrusage(td, uap->who, &s); 702 if (error) 703 return (error); 704 if (uap->rusage != NULL) { 705 TV_CP(s, s32, ru_utime); 706 TV_CP(s, s32, ru_stime); 707 CP(s, s32, ru_maxrss); 708 CP(s, s32, ru_ixrss); 709 CP(s, s32, ru_idrss); 710 CP(s, s32, ru_isrss); 711 CP(s, s32, ru_minflt); 712 CP(s, s32, ru_majflt); 713 CP(s, s32, ru_nswap); 714 CP(s, s32, ru_inblock); 715 CP(s, s32, ru_oublock); 716 CP(s, s32, ru_msgsnd); 717 CP(s, s32, ru_msgrcv); 718 CP(s, s32, ru_nsignals); 719 CP(s, s32, ru_nvcsw); 720 CP(s, s32, ru_nivcsw); 721 error = copyout(&s32, uap->rusage, sizeof(s32)); 722 } 723 return (error); 724 } 725 726 static int 727 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 728 { 729 struct iovec32 iov32; 730 struct iovec *iov; 731 struct uio *uio; 732 u_int iovlen; 733 int error, i; 734 735 *uiop = NULL; 736 if (iovcnt > UIO_MAXIOV) 737 return (EINVAL); 738 iovlen = iovcnt * sizeof(struct iovec); 739 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 740 iov = (struct iovec *)(uio + 1); 741 for (i = 0; i < iovcnt; i++) { 742 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 743 if (error) { 744 free(uio, M_IOV); 745 return (error); 746 } 747 iov[i].iov_base = PTRIN(iov32.iov_base); 748 iov[i].iov_len = iov32.iov_len; 749 } 750 uio->uio_iov = iov; 751 uio->uio_iovcnt = iovcnt; 752 uio->uio_segflg = UIO_USERSPACE; 753 uio->uio_offset = -1; 754 uio->uio_resid = 0; 755 for (i = 0; i < iovcnt; i++) { 756 if (iov->iov_len > INT_MAX - uio->uio_resid) { 757 free(uio, M_IOV); 758 return (EINVAL); 759 } 760 uio->uio_resid += iov->iov_len; 761 iov++; 762 } 763 *uiop = uio; 764 return (0); 765 } 766 767 int 768 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 769 { 770 struct uio *auio; 771 int error; 772 773 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 774 if (error) 775 return (error); 776 error = kern_readv(td, uap->fd, auio); 777 free(auio, M_IOV); 778 return (error); 779 } 780 781 int 782 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 783 { 784 struct uio *auio; 785 int error; 786 787 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 788 if (error) 789 return (error); 790 error = kern_writev(td, uap->fd, auio); 791 free(auio, M_IOV); 792 return (error); 793 } 794 795 int 796 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 797 { 798 struct uio *auio; 799 int error; 800 801 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 802 if (error) 803 return (error); 804 error = kern_preadv(td, uap->fd, auio, uap->offset); 805 free(auio, M_IOV); 806 return (error); 807 } 808 809 int 810 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 811 { 812 struct uio *auio; 813 int error; 814 815 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 816 if (error) 817 return (error); 818 error = kern_pwritev(td, uap->fd, auio, uap->offset); 819 free(auio, M_IOV); 820 return (error); 821 } 822 823 static int 824 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 825 int error) 826 { 827 struct iovec32 iov32; 828 struct iovec *iov; 829 u_int iovlen; 830 int i; 831 832 *iovp = NULL; 833 if (iovcnt > UIO_MAXIOV) 834 return (error); 835 iovlen = iovcnt * sizeof(struct iovec); 836 iov = malloc(iovlen, M_IOV, M_WAITOK); 837 for (i = 0; i < iovcnt; i++) { 838 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 839 if (error) { 840 free(iov, M_IOV); 841 return (error); 842 } 843 iov[i].iov_base = PTRIN(iov32.iov_base); 844 iov[i].iov_len = iov32.iov_len; 845 } 846 *iovp = iov; 847 return (0); 848 } 849 850 static int 851 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 852 { 853 struct msghdr32 m32; 854 int error; 855 856 error = copyin(msg32, &m32, sizeof(m32)); 857 if (error) 858 return (error); 859 msg->msg_name = PTRIN(m32.msg_name); 860 msg->msg_namelen = m32.msg_namelen; 861 msg->msg_iov = PTRIN(m32.msg_iov); 862 msg->msg_iovlen = m32.msg_iovlen; 863 msg->msg_control = PTRIN(m32.msg_control); 864 msg->msg_controllen = m32.msg_controllen; 865 msg->msg_flags = m32.msg_flags; 866 return (0); 867 } 868 869 static int 870 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 871 { 872 struct msghdr32 m32; 873 int error; 874 875 m32.msg_name = PTROUT(msg->msg_name); 876 m32.msg_namelen = msg->msg_namelen; 877 m32.msg_iov = PTROUT(msg->msg_iov); 878 m32.msg_iovlen = msg->msg_iovlen; 879 m32.msg_control = PTROUT(msg->msg_control); 880 m32.msg_controllen = msg->msg_controllen; 881 m32.msg_flags = msg->msg_flags; 882 error = copyout(&m32, msg32, sizeof(m32)); 883 return (error); 884 } 885 886 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 887 #define FREEBSD32_ALIGN(p) \ 888 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 889 #define FREEBSD32_CMSG_SPACE(l) \ 890 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 891 892 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 893 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 894 static int 895 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 896 { 897 struct cmsghdr *cm; 898 void *data; 899 socklen_t clen, datalen; 900 int error; 901 caddr_t ctlbuf; 902 int len, maxlen, copylen; 903 struct mbuf *m; 904 error = 0; 905 906 len = msg->msg_controllen; 907 maxlen = msg->msg_controllen; 908 msg->msg_controllen = 0; 909 910 m = control; 911 ctlbuf = msg->msg_control; 912 913 while (m && len > 0) { 914 cm = mtod(m, struct cmsghdr *); 915 clen = m->m_len; 916 917 while (cm != NULL) { 918 919 if (sizeof(struct cmsghdr) > clen || 920 cm->cmsg_len > clen) { 921 error = EINVAL; 922 break; 923 } 924 925 data = CMSG_DATA(cm); 926 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 927 928 /* Adjust message length */ 929 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 930 datalen; 931 932 933 /* Copy cmsghdr */ 934 copylen = sizeof(struct cmsghdr); 935 if (len < copylen) { 936 msg->msg_flags |= MSG_CTRUNC; 937 copylen = len; 938 } 939 940 error = copyout(cm,ctlbuf,copylen); 941 if (error) 942 goto exit; 943 944 ctlbuf += FREEBSD32_ALIGN(copylen); 945 len -= FREEBSD32_ALIGN(copylen); 946 947 if (len <= 0) 948 break; 949 950 /* Copy data */ 951 copylen = datalen; 952 if (len < copylen) { 953 msg->msg_flags |= MSG_CTRUNC; 954 copylen = len; 955 } 956 957 error = copyout(data,ctlbuf,copylen); 958 if (error) 959 goto exit; 960 961 ctlbuf += FREEBSD32_ALIGN(copylen); 962 len -= FREEBSD32_ALIGN(copylen); 963 964 if (CMSG_SPACE(datalen) < clen) { 965 clen -= CMSG_SPACE(datalen); 966 cm = (struct cmsghdr *) 967 ((caddr_t)cm + CMSG_SPACE(datalen)); 968 } else { 969 clen = 0; 970 cm = NULL; 971 } 972 } 973 m = m->m_next; 974 } 975 976 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 977 978 exit: 979 return (error); 980 981 } 982 983 int 984 freebsd32_recvmsg(td, uap) 985 struct thread *td; 986 struct freebsd32_recvmsg_args /* { 987 int s; 988 struct msghdr32 *msg; 989 int flags; 990 } */ *uap; 991 { 992 struct msghdr msg; 993 struct msghdr32 m32; 994 struct iovec *uiov, *iov; 995 struct mbuf *control = NULL; 996 struct mbuf **controlp; 997 998 int error; 999 error = copyin(uap->msg, &m32, sizeof(m32)); 1000 if (error) 1001 return (error); 1002 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1003 if (error) 1004 return (error); 1005 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1006 EMSGSIZE); 1007 if (error) 1008 return (error); 1009 msg.msg_flags = uap->flags; 1010 uiov = msg.msg_iov; 1011 msg.msg_iov = iov; 1012 1013 controlp = (msg.msg_control != NULL) ? &control : NULL; 1014 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1015 if (error == 0) { 1016 msg.msg_iov = uiov; 1017 1018 if (control != NULL) 1019 error = freebsd32_copy_msg_out(&msg, control); 1020 1021 if (error == 0) 1022 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1023 } 1024 free(iov, M_IOV); 1025 1026 if (control != NULL) 1027 m_freem(control); 1028 1029 return (error); 1030 } 1031 1032 1033 static int 1034 freebsd32_convert_msg_in(struct mbuf **controlp) 1035 { 1036 struct mbuf *control = *controlp; 1037 struct cmsghdr *cm = mtod(control, struct cmsghdr *); 1038 void *data; 1039 socklen_t clen = control->m_len, datalen; 1040 int error; 1041 1042 error = 0; 1043 *controlp = NULL; 1044 1045 while (cm != NULL) { 1046 if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) { 1047 error = EINVAL; 1048 break; 1049 } 1050 1051 data = FREEBSD32_CMSG_DATA(cm); 1052 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1053 1054 *controlp = sbcreatecontrol(data, datalen, cm->cmsg_type, 1055 cm->cmsg_level); 1056 controlp = &(*controlp)->m_next; 1057 1058 if (FREEBSD32_CMSG_SPACE(datalen) < clen) { 1059 clen -= FREEBSD32_CMSG_SPACE(datalen); 1060 cm = (struct cmsghdr *) 1061 ((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen)); 1062 } else { 1063 clen = 0; 1064 cm = NULL; 1065 } 1066 } 1067 1068 m_freem(control); 1069 return (error); 1070 } 1071 1072 1073 int 1074 freebsd32_sendmsg(struct thread *td, 1075 struct freebsd32_sendmsg_args *uap) 1076 { 1077 struct msghdr msg; 1078 struct msghdr32 m32; 1079 struct iovec *iov; 1080 struct mbuf *control = NULL; 1081 struct sockaddr *to = NULL; 1082 int error; 1083 1084 error = copyin(uap->msg, &m32, sizeof(m32)); 1085 if (error) 1086 return (error); 1087 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1088 if (error) 1089 return (error); 1090 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1091 EMSGSIZE); 1092 if (error) 1093 return (error); 1094 msg.msg_iov = iov; 1095 if (msg.msg_name != NULL) { 1096 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1097 if (error) { 1098 to = NULL; 1099 goto out; 1100 } 1101 msg.msg_name = to; 1102 } 1103 1104 if (msg.msg_control) { 1105 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1106 error = EINVAL; 1107 goto out; 1108 } 1109 1110 error = sockargs(&control, msg.msg_control, 1111 msg.msg_controllen, MT_CONTROL); 1112 if (error) 1113 goto out; 1114 1115 error = freebsd32_convert_msg_in(&control); 1116 if (error) 1117 goto out; 1118 } 1119 1120 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1121 UIO_USERSPACE); 1122 1123 out: 1124 free(iov, M_IOV); 1125 if (to) 1126 free(to, M_SONAME); 1127 return (error); 1128 } 1129 1130 int 1131 freebsd32_recvfrom(struct thread *td, 1132 struct freebsd32_recvfrom_args *uap) 1133 { 1134 struct msghdr msg; 1135 struct iovec aiov; 1136 int error; 1137 1138 if (uap->fromlenaddr) { 1139 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1140 sizeof(msg.msg_namelen)); 1141 if (error) 1142 return (error); 1143 } else { 1144 msg.msg_namelen = 0; 1145 } 1146 1147 msg.msg_name = PTRIN(uap->from); 1148 msg.msg_iov = &aiov; 1149 msg.msg_iovlen = 1; 1150 aiov.iov_base = PTRIN(uap->buf); 1151 aiov.iov_len = uap->len; 1152 msg.msg_control = NULL; 1153 msg.msg_flags = uap->flags; 1154 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1155 if (error == 0 && uap->fromlenaddr) 1156 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1157 sizeof (msg.msg_namelen)); 1158 return (error); 1159 } 1160 1161 int 1162 freebsd32_settimeofday(struct thread *td, 1163 struct freebsd32_settimeofday_args *uap) 1164 { 1165 struct timeval32 tv32; 1166 struct timeval tv, *tvp; 1167 struct timezone tz, *tzp; 1168 int error; 1169 1170 if (uap->tv) { 1171 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1172 if (error) 1173 return (error); 1174 CP(tv32, tv, tv_sec); 1175 CP(tv32, tv, tv_usec); 1176 tvp = &tv; 1177 } else 1178 tvp = NULL; 1179 if (uap->tzp) { 1180 error = copyin(uap->tzp, &tz, sizeof(tz)); 1181 if (error) 1182 return (error); 1183 tzp = &tz; 1184 } else 1185 tzp = NULL; 1186 return (kern_settimeofday(td, tvp, tzp)); 1187 } 1188 1189 int 1190 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1191 { 1192 struct timeval32 s32[2]; 1193 struct timeval s[2], *sp; 1194 int error; 1195 1196 if (uap->tptr != NULL) { 1197 error = copyin(uap->tptr, s32, sizeof(s32)); 1198 if (error) 1199 return (error); 1200 CP(s32[0], s[0], tv_sec); 1201 CP(s32[0], s[0], tv_usec); 1202 CP(s32[1], s[1], tv_sec); 1203 CP(s32[1], s[1], tv_usec); 1204 sp = s; 1205 } else 1206 sp = NULL; 1207 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1208 } 1209 1210 int 1211 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1212 { 1213 struct timeval32 s32[2]; 1214 struct timeval s[2], *sp; 1215 int error; 1216 1217 if (uap->tptr != NULL) { 1218 error = copyin(uap->tptr, s32, sizeof(s32)); 1219 if (error) 1220 return (error); 1221 CP(s32[0], s[0], tv_sec); 1222 CP(s32[0], s[0], tv_usec); 1223 CP(s32[1], s[1], tv_sec); 1224 CP(s32[1], s[1], tv_usec); 1225 sp = s; 1226 } else 1227 sp = NULL; 1228 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1229 } 1230 1231 int 1232 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1233 { 1234 struct timeval32 s32[2]; 1235 struct timeval s[2], *sp; 1236 int error; 1237 1238 if (uap->tptr != NULL) { 1239 error = copyin(uap->tptr, s32, sizeof(s32)); 1240 if (error) 1241 return (error); 1242 CP(s32[0], s[0], tv_sec); 1243 CP(s32[0], s[0], tv_usec); 1244 CP(s32[1], s[1], tv_sec); 1245 CP(s32[1], s[1], tv_usec); 1246 sp = s; 1247 } else 1248 sp = NULL; 1249 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1250 } 1251 1252 int 1253 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1254 { 1255 struct timeval32 s32[2]; 1256 struct timeval s[2], *sp; 1257 int error; 1258 1259 if (uap->times != NULL) { 1260 error = copyin(uap->times, s32, sizeof(s32)); 1261 if (error) 1262 return (error); 1263 CP(s32[0], s[0], tv_sec); 1264 CP(s32[0], s[0], tv_usec); 1265 CP(s32[1], s[1], tv_sec); 1266 CP(s32[1], s[1], tv_usec); 1267 sp = s; 1268 } else 1269 sp = NULL; 1270 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1271 sp, UIO_SYSSPACE)); 1272 } 1273 1274 int 1275 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1276 { 1277 struct timeval32 tv32; 1278 struct timeval delta, olddelta, *deltap; 1279 int error; 1280 1281 if (uap->delta) { 1282 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1283 if (error) 1284 return (error); 1285 CP(tv32, delta, tv_sec); 1286 CP(tv32, delta, tv_usec); 1287 deltap = δ 1288 } else 1289 deltap = NULL; 1290 error = kern_adjtime(td, deltap, &olddelta); 1291 if (uap->olddelta && error == 0) { 1292 CP(olddelta, tv32, tv_sec); 1293 CP(olddelta, tv32, tv_usec); 1294 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1295 } 1296 return (error); 1297 } 1298 1299 #ifdef COMPAT_FREEBSD4 1300 int 1301 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1302 { 1303 struct statfs32 s32; 1304 struct statfs s; 1305 int error; 1306 1307 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1308 if (error) 1309 return (error); 1310 copy_statfs(&s, &s32); 1311 return (copyout(&s32, uap->buf, sizeof(s32))); 1312 } 1313 #endif 1314 1315 #ifdef COMPAT_FREEBSD4 1316 int 1317 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1318 { 1319 struct statfs32 s32; 1320 struct statfs s; 1321 int error; 1322 1323 error = kern_fstatfs(td, uap->fd, &s); 1324 if (error) 1325 return (error); 1326 copy_statfs(&s, &s32); 1327 return (copyout(&s32, uap->buf, sizeof(s32))); 1328 } 1329 #endif 1330 1331 #ifdef COMPAT_FREEBSD4 1332 int 1333 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1334 { 1335 struct statfs32 s32; 1336 struct statfs s; 1337 fhandle_t fh; 1338 int error; 1339 1340 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1341 return (error); 1342 error = kern_fhstatfs(td, fh, &s); 1343 if (error) 1344 return (error); 1345 copy_statfs(&s, &s32); 1346 return (copyout(&s32, uap->buf, sizeof(s32))); 1347 } 1348 #endif 1349 1350 static void 1351 freebsd32_ipcperm_in(struct ipc_perm32 *ip32, struct ipc_perm *ip) 1352 { 1353 1354 CP(*ip32, *ip, cuid); 1355 CP(*ip32, *ip, cgid); 1356 CP(*ip32, *ip, uid); 1357 CP(*ip32, *ip, gid); 1358 CP(*ip32, *ip, mode); 1359 CP(*ip32, *ip, seq); 1360 CP(*ip32, *ip, key); 1361 } 1362 1363 static void 1364 freebsd32_ipcperm_out(struct ipc_perm *ip, struct ipc_perm32 *ip32) 1365 { 1366 1367 CP(*ip, *ip32, cuid); 1368 CP(*ip, *ip32, cgid); 1369 CP(*ip, *ip32, uid); 1370 CP(*ip, *ip32, gid); 1371 CP(*ip, *ip32, mode); 1372 CP(*ip, *ip32, seq); 1373 CP(*ip, *ip32, key); 1374 } 1375 1376 int 1377 freebsd32_semsys(struct thread *td, struct freebsd32_semsys_args *uap) 1378 { 1379 1380 switch (uap->which) { 1381 case 0: 1382 return (freebsd32_semctl(td, 1383 (struct freebsd32_semctl_args *)&uap->a2)); 1384 default: 1385 return (semsys(td, (struct semsys_args *)uap)); 1386 } 1387 } 1388 1389 int 1390 freebsd32_semctl(struct thread *td, struct freebsd32_semctl_args *uap) 1391 { 1392 struct semid_ds32 dsbuf32; 1393 struct semid_ds dsbuf; 1394 union semun semun; 1395 union semun32 arg; 1396 register_t rval; 1397 int error; 1398 1399 switch (uap->cmd) { 1400 case SEM_STAT: 1401 case IPC_SET: 1402 case IPC_STAT: 1403 case GETALL: 1404 case SETVAL: 1405 case SETALL: 1406 error = copyin(uap->arg, &arg, sizeof(arg)); 1407 if (error) 1408 return (error); 1409 break; 1410 } 1411 1412 switch (uap->cmd) { 1413 case SEM_STAT: 1414 case IPC_STAT: 1415 semun.buf = &dsbuf; 1416 break; 1417 case IPC_SET: 1418 error = copyin(PTRIN(arg.buf), &dsbuf32, sizeof(dsbuf32)); 1419 if (error) 1420 return (error); 1421 freebsd32_ipcperm_in(&dsbuf32.sem_perm, &dsbuf.sem_perm); 1422 PTRIN_CP(dsbuf32, dsbuf, sem_base); 1423 CP(dsbuf32, dsbuf, sem_nsems); 1424 CP(dsbuf32, dsbuf, sem_otime); 1425 CP(dsbuf32, dsbuf, sem_pad1); 1426 CP(dsbuf32, dsbuf, sem_ctime); 1427 CP(dsbuf32, dsbuf, sem_pad2); 1428 CP(dsbuf32, dsbuf, sem_pad3[0]); 1429 CP(dsbuf32, dsbuf, sem_pad3[1]); 1430 CP(dsbuf32, dsbuf, sem_pad3[2]); 1431 CP(dsbuf32, dsbuf, sem_pad3[3]); 1432 semun.buf = &dsbuf; 1433 break; 1434 case GETALL: 1435 case SETALL: 1436 semun.array = PTRIN(arg.array); 1437 break; 1438 case SETVAL: 1439 semun.val = arg.val; 1440 break; 1441 } 1442 1443 error = kern_semctl(td, uap->semid, uap->semnum, uap->cmd, &semun, 1444 &rval); 1445 if (error) 1446 return (error); 1447 1448 switch (uap->cmd) { 1449 case SEM_STAT: 1450 case IPC_STAT: 1451 freebsd32_ipcperm_out(&dsbuf.sem_perm, &dsbuf32.sem_perm); 1452 PTROUT_CP(dsbuf, dsbuf32, sem_base); 1453 CP(dsbuf, dsbuf32, sem_nsems); 1454 CP(dsbuf, dsbuf32, sem_otime); 1455 CP(dsbuf, dsbuf32, sem_pad1); 1456 CP(dsbuf, dsbuf32, sem_ctime); 1457 CP(dsbuf, dsbuf32, sem_pad2); 1458 CP(dsbuf, dsbuf32, sem_pad3[0]); 1459 CP(dsbuf, dsbuf32, sem_pad3[1]); 1460 CP(dsbuf, dsbuf32, sem_pad3[2]); 1461 CP(dsbuf, dsbuf32, sem_pad3[3]); 1462 error = copyout(&dsbuf32, PTRIN(arg.buf), sizeof(dsbuf32)); 1463 break; 1464 } 1465 1466 if (error == 0) 1467 td->td_retval[0] = rval; 1468 return (error); 1469 } 1470 1471 int 1472 freebsd32_msgsys(struct thread *td, struct freebsd32_msgsys_args *uap) 1473 { 1474 1475 switch (uap->which) { 1476 case 0: 1477 return (freebsd32_msgctl(td, 1478 (struct freebsd32_msgctl_args *)&uap->a2)); 1479 case 2: 1480 return (freebsd32_msgsnd(td, 1481 (struct freebsd32_msgsnd_args *)&uap->a2)); 1482 case 3: 1483 return (freebsd32_msgrcv(td, 1484 (struct freebsd32_msgrcv_args *)&uap->a2)); 1485 default: 1486 return (msgsys(td, (struct msgsys_args *)uap)); 1487 } 1488 } 1489 1490 int 1491 freebsd32_msgctl(struct thread *td, struct freebsd32_msgctl_args *uap) 1492 { 1493 struct msqid_ds msqbuf; 1494 struct msqid_ds32 msqbuf32; 1495 int error; 1496 1497 if (uap->cmd == IPC_SET) { 1498 error = copyin(uap->buf, &msqbuf32, sizeof(msqbuf32)); 1499 if (error) 1500 return (error); 1501 freebsd32_ipcperm_in(&msqbuf32.msg_perm, &msqbuf.msg_perm); 1502 PTRIN_CP(msqbuf32, msqbuf, msg_first); 1503 PTRIN_CP(msqbuf32, msqbuf, msg_last); 1504 CP(msqbuf32, msqbuf, msg_cbytes); 1505 CP(msqbuf32, msqbuf, msg_qnum); 1506 CP(msqbuf32, msqbuf, msg_qbytes); 1507 CP(msqbuf32, msqbuf, msg_lspid); 1508 CP(msqbuf32, msqbuf, msg_lrpid); 1509 CP(msqbuf32, msqbuf, msg_stime); 1510 CP(msqbuf32, msqbuf, msg_pad1); 1511 CP(msqbuf32, msqbuf, msg_rtime); 1512 CP(msqbuf32, msqbuf, msg_pad2); 1513 CP(msqbuf32, msqbuf, msg_ctime); 1514 CP(msqbuf32, msqbuf, msg_pad3); 1515 CP(msqbuf32, msqbuf, msg_pad4[0]); 1516 CP(msqbuf32, msqbuf, msg_pad4[1]); 1517 CP(msqbuf32, msqbuf, msg_pad4[2]); 1518 CP(msqbuf32, msqbuf, msg_pad4[3]); 1519 } 1520 error = kern_msgctl(td, uap->msqid, uap->cmd, &msqbuf); 1521 if (error) 1522 return (error); 1523 if (uap->cmd == IPC_STAT) { 1524 freebsd32_ipcperm_out(&msqbuf.msg_perm, &msqbuf32.msg_perm); 1525 PTROUT_CP(msqbuf, msqbuf32, msg_first); 1526 PTROUT_CP(msqbuf, msqbuf32, msg_last); 1527 CP(msqbuf, msqbuf32, msg_cbytes); 1528 CP(msqbuf, msqbuf32, msg_qnum); 1529 CP(msqbuf, msqbuf32, msg_qbytes); 1530 CP(msqbuf, msqbuf32, msg_lspid); 1531 CP(msqbuf, msqbuf32, msg_lrpid); 1532 CP(msqbuf, msqbuf32, msg_stime); 1533 CP(msqbuf, msqbuf32, msg_pad1); 1534 CP(msqbuf, msqbuf32, msg_rtime); 1535 CP(msqbuf, msqbuf32, msg_pad2); 1536 CP(msqbuf, msqbuf32, msg_ctime); 1537 CP(msqbuf, msqbuf32, msg_pad3); 1538 CP(msqbuf, msqbuf32, msg_pad4[0]); 1539 CP(msqbuf, msqbuf32, msg_pad4[1]); 1540 CP(msqbuf, msqbuf32, msg_pad4[2]); 1541 CP(msqbuf, msqbuf32, msg_pad4[3]); 1542 error = copyout(&msqbuf32, uap->buf, sizeof(struct msqid_ds32)); 1543 } 1544 return (error); 1545 } 1546 1547 int 1548 freebsd32_msgsnd(struct thread *td, struct freebsd32_msgsnd_args *uap) 1549 { 1550 const void *msgp; 1551 long mtype; 1552 int32_t mtype32; 1553 int error; 1554 1555 msgp = PTRIN(uap->msgp); 1556 if ((error = copyin(msgp, &mtype32, sizeof(mtype32))) != 0) 1557 return (error); 1558 mtype = mtype32; 1559 return (kern_msgsnd(td, uap->msqid, 1560 (const char *)msgp + sizeof(mtype32), 1561 uap->msgsz, uap->msgflg, mtype)); 1562 } 1563 1564 int 1565 freebsd32_msgrcv(struct thread *td, struct freebsd32_msgrcv_args *uap) 1566 { 1567 void *msgp; 1568 long mtype; 1569 int32_t mtype32; 1570 int error; 1571 1572 msgp = PTRIN(uap->msgp); 1573 if ((error = kern_msgrcv(td, uap->msqid, 1574 (char *)msgp + sizeof(mtype32), uap->msgsz, 1575 uap->msgtyp, uap->msgflg, &mtype)) != 0) 1576 return (error); 1577 mtype32 = (int32_t)mtype; 1578 return (copyout(&mtype32, msgp, sizeof(mtype32))); 1579 } 1580 1581 int 1582 freebsd32_shmsys(struct thread *td, struct freebsd32_shmsys_args *uap) 1583 { 1584 1585 switch (uap->which) { 1586 case 0: { /* shmat */ 1587 struct shmat_args ap; 1588 1589 ap.shmid = uap->a2; 1590 ap.shmaddr = PTRIN(uap->a3); 1591 ap.shmflg = uap->a4; 1592 return (sysent[SYS_shmat].sy_call(td, &ap)); 1593 } 1594 case 2: { /* shmdt */ 1595 struct shmdt_args ap; 1596 1597 ap.shmaddr = PTRIN(uap->a2); 1598 return (sysent[SYS_shmdt].sy_call(td, &ap)); 1599 } 1600 case 3: { /* shmget */ 1601 struct shmget_args ap; 1602 1603 ap.key = uap->a2; 1604 ap.size = uap->a3; 1605 ap.shmflg = uap->a4; 1606 return (sysent[SYS_shmget].sy_call(td, &ap)); 1607 } 1608 case 4: { /* shmctl */ 1609 struct freebsd32_shmctl_args ap; 1610 1611 ap.shmid = uap->a2; 1612 ap.cmd = uap->a3; 1613 ap.buf = PTRIN(uap->a4); 1614 return (freebsd32_shmctl(td, &ap)); 1615 } 1616 case 1: /* oshmctl */ 1617 default: 1618 return (EINVAL); 1619 } 1620 } 1621 1622 int 1623 freebsd32_shmctl(struct thread *td, struct freebsd32_shmctl_args *uap) 1624 { 1625 int error = 0; 1626 union { 1627 struct shmid_ds shmid_ds; 1628 struct shm_info shm_info; 1629 struct shminfo shminfo; 1630 } u; 1631 union { 1632 struct shmid_ds32 shmid_ds32; 1633 struct shm_info32 shm_info32; 1634 struct shminfo32 shminfo32; 1635 } u32; 1636 size_t sz; 1637 1638 if (uap->cmd == IPC_SET) { 1639 if ((error = copyin(uap->buf, &u32.shmid_ds32, 1640 sizeof(u32.shmid_ds32)))) 1641 goto done; 1642 freebsd32_ipcperm_in(&u32.shmid_ds32.shm_perm, 1643 &u.shmid_ds.shm_perm); 1644 CP(u32.shmid_ds32, u.shmid_ds, shm_segsz); 1645 CP(u32.shmid_ds32, u.shmid_ds, shm_lpid); 1646 CP(u32.shmid_ds32, u.shmid_ds, shm_cpid); 1647 CP(u32.shmid_ds32, u.shmid_ds, shm_nattch); 1648 CP(u32.shmid_ds32, u.shmid_ds, shm_atime); 1649 CP(u32.shmid_ds32, u.shmid_ds, shm_dtime); 1650 CP(u32.shmid_ds32, u.shmid_ds, shm_ctime); 1651 PTRIN_CP(u32.shmid_ds32, u.shmid_ds, shm_internal); 1652 } 1653 1654 error = kern_shmctl(td, uap->shmid, uap->cmd, (void *)&u, &sz); 1655 if (error) 1656 goto done; 1657 1658 /* Cases in which we need to copyout */ 1659 switch (uap->cmd) { 1660 case IPC_INFO: 1661 CP(u.shminfo, u32.shminfo32, shmmax); 1662 CP(u.shminfo, u32.shminfo32, shmmin); 1663 CP(u.shminfo, u32.shminfo32, shmmni); 1664 CP(u.shminfo, u32.shminfo32, shmseg); 1665 CP(u.shminfo, u32.shminfo32, shmall); 1666 error = copyout(&u32.shminfo32, uap->buf, 1667 sizeof(u32.shminfo32)); 1668 break; 1669 case SHM_INFO: 1670 CP(u.shm_info, u32.shm_info32, used_ids); 1671 CP(u.shm_info, u32.shm_info32, shm_rss); 1672 CP(u.shm_info, u32.shm_info32, shm_tot); 1673 CP(u.shm_info, u32.shm_info32, shm_swp); 1674 CP(u.shm_info, u32.shm_info32, swap_attempts); 1675 CP(u.shm_info, u32.shm_info32, swap_successes); 1676 error = copyout(&u32.shm_info32, uap->buf, 1677 sizeof(u32.shm_info32)); 1678 break; 1679 case SHM_STAT: 1680 case IPC_STAT: 1681 freebsd32_ipcperm_out(&u.shmid_ds.shm_perm, 1682 &u32.shmid_ds32.shm_perm); 1683 CP(u.shmid_ds, u32.shmid_ds32, shm_segsz); 1684 CP(u.shmid_ds, u32.shmid_ds32, shm_lpid); 1685 CP(u.shmid_ds, u32.shmid_ds32, shm_cpid); 1686 CP(u.shmid_ds, u32.shmid_ds32, shm_nattch); 1687 CP(u.shmid_ds, u32.shmid_ds32, shm_atime); 1688 CP(u.shmid_ds, u32.shmid_ds32, shm_dtime); 1689 CP(u.shmid_ds, u32.shmid_ds32, shm_ctime); 1690 PTROUT_CP(u.shmid_ds, u32.shmid_ds32, shm_internal); 1691 error = copyout(&u32.shmid_ds32, uap->buf, 1692 sizeof(u32.shmid_ds32)); 1693 break; 1694 } 1695 1696 done: 1697 if (error) { 1698 /* Invalidate the return value */ 1699 td->td_retval[0] = -1; 1700 } 1701 return (error); 1702 } 1703 1704 int 1705 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1706 { 1707 struct pread_args ap; 1708 1709 ap.fd = uap->fd; 1710 ap.buf = uap->buf; 1711 ap.nbyte = uap->nbyte; 1712 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1713 return (pread(td, &ap)); 1714 } 1715 1716 int 1717 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1718 { 1719 struct pwrite_args ap; 1720 1721 ap.fd = uap->fd; 1722 ap.buf = uap->buf; 1723 ap.nbyte = uap->nbyte; 1724 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1725 return (pwrite(td, &ap)); 1726 } 1727 1728 int 1729 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1730 { 1731 int error; 1732 struct lseek_args ap; 1733 off_t pos; 1734 1735 ap.fd = uap->fd; 1736 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1737 ap.whence = uap->whence; 1738 error = lseek(td, &ap); 1739 /* Expand the quad return into two parts for eax and edx */ 1740 pos = *(off_t *)(td->td_retval); 1741 td->td_retval[0] = pos & 0xffffffff; /* %eax */ 1742 td->td_retval[1] = pos >> 32; /* %edx */ 1743 return error; 1744 } 1745 1746 int 1747 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1748 { 1749 struct truncate_args ap; 1750 1751 ap.path = uap->path; 1752 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1753 return (truncate(td, &ap)); 1754 } 1755 1756 int 1757 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1758 { 1759 struct ftruncate_args ap; 1760 1761 ap.fd = uap->fd; 1762 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1763 return (ftruncate(td, &ap)); 1764 } 1765 1766 int 1767 freebsd32_getdirentries(struct thread *td, 1768 struct freebsd32_getdirentries_args *uap) 1769 { 1770 long base; 1771 int32_t base32; 1772 int error; 1773 1774 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base); 1775 if (error) 1776 return (error); 1777 if (uap->basep != NULL) { 1778 base32 = base; 1779 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1780 } 1781 return (error); 1782 } 1783 1784 #ifdef COMPAT_FREEBSD6 1785 /* versions with the 'int pad' argument */ 1786 int 1787 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1788 { 1789 struct pread_args ap; 1790 1791 ap.fd = uap->fd; 1792 ap.buf = uap->buf; 1793 ap.nbyte = uap->nbyte; 1794 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1795 return (pread(td, &ap)); 1796 } 1797 1798 int 1799 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1800 { 1801 struct pwrite_args ap; 1802 1803 ap.fd = uap->fd; 1804 ap.buf = uap->buf; 1805 ap.nbyte = uap->nbyte; 1806 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1807 return (pwrite(td, &ap)); 1808 } 1809 1810 int 1811 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1812 { 1813 int error; 1814 struct lseek_args ap; 1815 off_t pos; 1816 1817 ap.fd = uap->fd; 1818 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1819 ap.whence = uap->whence; 1820 error = lseek(td, &ap); 1821 /* Expand the quad return into two parts for eax and edx */ 1822 pos = *(off_t *)(td->td_retval); 1823 td->td_retval[0] = pos & 0xffffffff; /* %eax */ 1824 td->td_retval[1] = pos >> 32; /* %edx */ 1825 return error; 1826 } 1827 1828 int 1829 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1830 { 1831 struct truncate_args ap; 1832 1833 ap.path = uap->path; 1834 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1835 return (truncate(td, &ap)); 1836 } 1837 1838 int 1839 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1840 { 1841 struct ftruncate_args ap; 1842 1843 ap.fd = uap->fd; 1844 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1845 return (ftruncate(td, &ap)); 1846 } 1847 #endif /* COMPAT_FREEBSD6 */ 1848 1849 struct sf_hdtr32 { 1850 uint32_t headers; 1851 int hdr_cnt; 1852 uint32_t trailers; 1853 int trl_cnt; 1854 }; 1855 1856 static int 1857 freebsd32_do_sendfile(struct thread *td, 1858 struct freebsd32_sendfile_args *uap, int compat) 1859 { 1860 struct sendfile_args ap; 1861 struct sf_hdtr32 hdtr32; 1862 struct sf_hdtr hdtr; 1863 struct uio *hdr_uio, *trl_uio; 1864 struct iovec32 *iov32; 1865 int error; 1866 1867 hdr_uio = trl_uio = NULL; 1868 1869 ap.fd = uap->fd; 1870 ap.s = uap->s; 1871 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1872 ap.nbytes = uap->nbytes; 1873 ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */ 1874 ap.sbytes = uap->sbytes; 1875 ap.flags = uap->flags; 1876 1877 if (uap->hdtr != NULL) { 1878 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1879 if (error) 1880 goto out; 1881 PTRIN_CP(hdtr32, hdtr, headers); 1882 CP(hdtr32, hdtr, hdr_cnt); 1883 PTRIN_CP(hdtr32, hdtr, trailers); 1884 CP(hdtr32, hdtr, trl_cnt); 1885 1886 if (hdtr.headers != NULL) { 1887 iov32 = PTRIN(hdtr32.headers); 1888 error = freebsd32_copyinuio(iov32, 1889 hdtr32.hdr_cnt, &hdr_uio); 1890 if (error) 1891 goto out; 1892 } 1893 if (hdtr.trailers != NULL) { 1894 iov32 = PTRIN(hdtr32.trailers); 1895 error = freebsd32_copyinuio(iov32, 1896 hdtr32.trl_cnt, &trl_uio); 1897 if (error) 1898 goto out; 1899 } 1900 } 1901 1902 error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat); 1903 out: 1904 if (hdr_uio) 1905 free(hdr_uio, M_IOV); 1906 if (trl_uio) 1907 free(trl_uio, M_IOV); 1908 return (error); 1909 } 1910 1911 #ifdef COMPAT_FREEBSD4 1912 int 1913 freebsd4_freebsd32_sendfile(struct thread *td, 1914 struct freebsd4_freebsd32_sendfile_args *uap) 1915 { 1916 return (freebsd32_do_sendfile(td, 1917 (struct freebsd32_sendfile_args *)uap, 1)); 1918 } 1919 #endif 1920 1921 int 1922 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1923 { 1924 1925 return (freebsd32_do_sendfile(td, uap, 0)); 1926 } 1927 1928 static void 1929 copy_stat( struct stat *in, struct stat32 *out) 1930 { 1931 CP(*in, *out, st_dev); 1932 CP(*in, *out, st_ino); 1933 CP(*in, *out, st_mode); 1934 CP(*in, *out, st_nlink); 1935 CP(*in, *out, st_uid); 1936 CP(*in, *out, st_gid); 1937 CP(*in, *out, st_rdev); 1938 TS_CP(*in, *out, st_atimespec); 1939 TS_CP(*in, *out, st_mtimespec); 1940 TS_CP(*in, *out, st_ctimespec); 1941 CP(*in, *out, st_size); 1942 CP(*in, *out, st_blocks); 1943 CP(*in, *out, st_blksize); 1944 CP(*in, *out, st_flags); 1945 CP(*in, *out, st_gen); 1946 } 1947 1948 int 1949 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1950 { 1951 struct stat sb; 1952 struct stat32 sb32; 1953 int error; 1954 1955 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1956 if (error) 1957 return (error); 1958 copy_stat(&sb, &sb32); 1959 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1960 return (error); 1961 } 1962 1963 int 1964 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1965 { 1966 struct stat ub; 1967 struct stat32 ub32; 1968 int error; 1969 1970 error = kern_fstat(td, uap->fd, &ub); 1971 if (error) 1972 return (error); 1973 copy_stat(&ub, &ub32); 1974 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1975 return (error); 1976 } 1977 1978 int 1979 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1980 { 1981 struct stat ub; 1982 struct stat32 ub32; 1983 int error; 1984 1985 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1986 if (error) 1987 return (error); 1988 copy_stat(&ub, &ub32); 1989 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1990 return (error); 1991 } 1992 1993 int 1994 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1995 { 1996 struct stat sb; 1997 struct stat32 sb32; 1998 int error; 1999 2000 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 2001 if (error) 2002 return (error); 2003 copy_stat(&sb, &sb32); 2004 error = copyout(&sb32, uap->ub, sizeof (sb32)); 2005 return (error); 2006 } 2007 2008 /* 2009 * MPSAFE 2010 */ 2011 int 2012 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 2013 { 2014 int error, name[CTL_MAXNAME]; 2015 size_t j, oldlen; 2016 2017 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 2018 return (EINVAL); 2019 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 2020 if (error) 2021 return (error); 2022 if (uap->oldlenp) 2023 oldlen = fuword32(uap->oldlenp); 2024 else 2025 oldlen = 0; 2026 error = userland_sysctl(td, name, uap->namelen, 2027 uap->old, &oldlen, 1, 2028 uap->new, uap->newlen, &j, SCTL_MASK32); 2029 if (error && error != ENOMEM) 2030 return (error); 2031 if (uap->oldlenp) 2032 suword32(uap->oldlenp, j); 2033 return (0); 2034 } 2035 2036 int 2037 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 2038 { 2039 uint32_t version; 2040 int error; 2041 struct jail j; 2042 2043 error = copyin(uap->jail, &version, sizeof(uint32_t)); 2044 if (error) 2045 return (error); 2046 switch (version) { 2047 case 0: 2048 { 2049 /* FreeBSD single IPv4 jails. */ 2050 struct jail32_v0 j32_v0; 2051 2052 bzero(&j, sizeof(struct jail)); 2053 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 2054 if (error) 2055 return (error); 2056 CP(j32_v0, j, version); 2057 PTRIN_CP(j32_v0, j, path); 2058 PTRIN_CP(j32_v0, j, hostname); 2059 j.ip4s = j32_v0.ip_number; 2060 break; 2061 } 2062 2063 case 1: 2064 /* 2065 * Version 1 was used by multi-IPv4 jail implementations 2066 * that never made it into the official kernel. 2067 */ 2068 return (EINVAL); 2069 2070 case 2: /* JAIL_API_VERSION */ 2071 { 2072 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 2073 struct jail32 j32; 2074 2075 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 2076 if (error) 2077 return (error); 2078 CP(j32, j, version); 2079 PTRIN_CP(j32, j, path); 2080 PTRIN_CP(j32, j, hostname); 2081 PTRIN_CP(j32, j, jailname); 2082 CP(j32, j, ip4s); 2083 CP(j32, j, ip6s); 2084 PTRIN_CP(j32, j, ip4); 2085 PTRIN_CP(j32, j, ip6); 2086 break; 2087 } 2088 2089 default: 2090 /* Sci-Fi jails are not supported, sorry. */ 2091 return (EINVAL); 2092 } 2093 return (kern_jail(td, &j)); 2094 } 2095 2096 int 2097 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2098 { 2099 struct sigaction32 s32; 2100 struct sigaction sa, osa, *sap; 2101 int error; 2102 2103 if (uap->act) { 2104 error = copyin(uap->act, &s32, sizeof(s32)); 2105 if (error) 2106 return (error); 2107 sa.sa_handler = PTRIN(s32.sa_u); 2108 CP(s32, sa, sa_flags); 2109 CP(s32, sa, sa_mask); 2110 sap = &sa; 2111 } else 2112 sap = NULL; 2113 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2114 if (error == 0 && uap->oact != NULL) { 2115 s32.sa_u = PTROUT(osa.sa_handler); 2116 CP(osa, s32, sa_flags); 2117 CP(osa, s32, sa_mask); 2118 error = copyout(&s32, uap->oact, sizeof(s32)); 2119 } 2120 return (error); 2121 } 2122 2123 #ifdef COMPAT_FREEBSD4 2124 int 2125 freebsd4_freebsd32_sigaction(struct thread *td, 2126 struct freebsd4_freebsd32_sigaction_args *uap) 2127 { 2128 struct sigaction32 s32; 2129 struct sigaction sa, osa, *sap; 2130 int error; 2131 2132 if (uap->act) { 2133 error = copyin(uap->act, &s32, sizeof(s32)); 2134 if (error) 2135 return (error); 2136 sa.sa_handler = PTRIN(s32.sa_u); 2137 CP(s32, sa, sa_flags); 2138 CP(s32, sa, sa_mask); 2139 sap = &sa; 2140 } else 2141 sap = NULL; 2142 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2143 if (error == 0 && uap->oact != NULL) { 2144 s32.sa_u = PTROUT(osa.sa_handler); 2145 CP(osa, s32, sa_flags); 2146 CP(osa, s32, sa_mask); 2147 error = copyout(&s32, uap->oact, sizeof(s32)); 2148 } 2149 return (error); 2150 } 2151 #endif 2152 2153 #ifdef COMPAT_43 2154 struct osigaction32 { 2155 u_int32_t sa_u; 2156 osigset_t sa_mask; 2157 int sa_flags; 2158 }; 2159 2160 #define ONSIG 32 2161 2162 int 2163 ofreebsd32_sigaction(struct thread *td, 2164 struct ofreebsd32_sigaction_args *uap) 2165 { 2166 struct osigaction32 s32; 2167 struct sigaction sa, osa, *sap; 2168 int error; 2169 2170 if (uap->signum <= 0 || uap->signum >= ONSIG) 2171 return (EINVAL); 2172 2173 if (uap->nsa) { 2174 error = copyin(uap->nsa, &s32, sizeof(s32)); 2175 if (error) 2176 return (error); 2177 sa.sa_handler = PTRIN(s32.sa_u); 2178 CP(s32, sa, sa_flags); 2179 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2180 sap = &sa; 2181 } else 2182 sap = NULL; 2183 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2184 if (error == 0 && uap->osa != NULL) { 2185 s32.sa_u = PTROUT(osa.sa_handler); 2186 CP(osa, s32, sa_flags); 2187 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2188 error = copyout(&s32, uap->osa, sizeof(s32)); 2189 } 2190 return (error); 2191 } 2192 2193 int 2194 ofreebsd32_sigprocmask(struct thread *td, 2195 struct ofreebsd32_sigprocmask_args *uap) 2196 { 2197 sigset_t set, oset; 2198 int error; 2199 2200 OSIG2SIG(uap->mask, set); 2201 error = kern_sigprocmask(td, uap->how, &set, &oset, 1); 2202 SIG2OSIG(oset, td->td_retval[0]); 2203 return (error); 2204 } 2205 2206 int 2207 ofreebsd32_sigpending(struct thread *td, 2208 struct ofreebsd32_sigpending_args *uap) 2209 { 2210 struct proc *p = td->td_proc; 2211 sigset_t siglist; 2212 2213 PROC_LOCK(p); 2214 siglist = p->p_siglist; 2215 SIGSETOR(siglist, td->td_siglist); 2216 PROC_UNLOCK(p); 2217 SIG2OSIG(siglist, td->td_retval[0]); 2218 return (0); 2219 } 2220 2221 struct sigvec32 { 2222 u_int32_t sv_handler; 2223 int sv_mask; 2224 int sv_flags; 2225 }; 2226 2227 int 2228 ofreebsd32_sigvec(struct thread *td, 2229 struct ofreebsd32_sigvec_args *uap) 2230 { 2231 struct sigvec32 vec; 2232 struct sigaction sa, osa, *sap; 2233 int error; 2234 2235 if (uap->signum <= 0 || uap->signum >= ONSIG) 2236 return (EINVAL); 2237 2238 if (uap->nsv) { 2239 error = copyin(uap->nsv, &vec, sizeof(vec)); 2240 if (error) 2241 return (error); 2242 sa.sa_handler = PTRIN(vec.sv_handler); 2243 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2244 sa.sa_flags = vec.sv_flags; 2245 sa.sa_flags ^= SA_RESTART; 2246 sap = &sa; 2247 } else 2248 sap = NULL; 2249 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2250 if (error == 0 && uap->osv != NULL) { 2251 vec.sv_handler = PTROUT(osa.sa_handler); 2252 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2253 vec.sv_flags = osa.sa_flags; 2254 vec.sv_flags &= ~SA_NOCLDWAIT; 2255 vec.sv_flags ^= SA_RESTART; 2256 error = copyout(&vec, uap->osv, sizeof(vec)); 2257 } 2258 return (error); 2259 } 2260 2261 int 2262 ofreebsd32_sigblock(struct thread *td, 2263 struct ofreebsd32_sigblock_args *uap) 2264 { 2265 struct proc *p = td->td_proc; 2266 sigset_t set; 2267 2268 OSIG2SIG(uap->mask, set); 2269 SIG_CANTMASK(set); 2270 PROC_LOCK(p); 2271 SIG2OSIG(td->td_sigmask, td->td_retval[0]); 2272 SIGSETOR(td->td_sigmask, set); 2273 PROC_UNLOCK(p); 2274 return (0); 2275 } 2276 2277 int 2278 ofreebsd32_sigsetmask(struct thread *td, 2279 struct ofreebsd32_sigsetmask_args *uap) 2280 { 2281 struct proc *p = td->td_proc; 2282 sigset_t set; 2283 2284 OSIG2SIG(uap->mask, set); 2285 SIG_CANTMASK(set); 2286 PROC_LOCK(p); 2287 SIG2OSIG(td->td_sigmask, td->td_retval[0]); 2288 SIGSETLO(td->td_sigmask, set); 2289 signotify(td); 2290 PROC_UNLOCK(p); 2291 return (0); 2292 } 2293 2294 int 2295 ofreebsd32_sigsuspend(struct thread *td, 2296 struct ofreebsd32_sigsuspend_args *uap) 2297 { 2298 struct proc *p = td->td_proc; 2299 sigset_t mask; 2300 2301 PROC_LOCK(p); 2302 td->td_oldsigmask = td->td_sigmask; 2303 td->td_pflags |= TDP_OLDMASK; 2304 OSIG2SIG(uap->mask, mask); 2305 SIG_CANTMASK(mask); 2306 SIGSETLO(td->td_sigmask, mask); 2307 signotify(td); 2308 while (msleep(&p->p_sigacts, &p->p_mtx, PPAUSE|PCATCH, "opause", 0) == 0) 2309 /* void */; 2310 PROC_UNLOCK(p); 2311 /* always return EINTR rather than ERESTART... */ 2312 return (EINTR); 2313 } 2314 2315 struct sigstack32 { 2316 u_int32_t ss_sp; 2317 int ss_onstack; 2318 }; 2319 2320 int 2321 ofreebsd32_sigstack(struct thread *td, 2322 struct ofreebsd32_sigstack_args *uap) 2323 { 2324 struct sigstack32 s32; 2325 struct sigstack nss, oss; 2326 int error = 0, unss; 2327 2328 if (uap->nss != NULL) { 2329 error = copyin(uap->nss, &s32, sizeof(s32)); 2330 if (error) 2331 return (error); 2332 nss.ss_sp = PTRIN(s32.ss_sp); 2333 CP(s32, nss, ss_onstack); 2334 unss = 1; 2335 } else { 2336 unss = 0; 2337 } 2338 oss.ss_sp = td->td_sigstk.ss_sp; 2339 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2340 if (unss) { 2341 td->td_sigstk.ss_sp = nss.ss_sp; 2342 td->td_sigstk.ss_size = 0; 2343 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2344 td->td_pflags |= TDP_ALTSTACK; 2345 } 2346 if (uap->oss != NULL) { 2347 s32.ss_sp = PTROUT(oss.ss_sp); 2348 CP(oss, s32, ss_onstack); 2349 error = copyout(&s32, uap->oss, sizeof(s32)); 2350 } 2351 return (error); 2352 } 2353 #endif 2354 2355 int 2356 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2357 { 2358 struct timespec32 rmt32, rqt32; 2359 struct timespec rmt, rqt; 2360 int error; 2361 2362 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2363 if (error) 2364 return (error); 2365 2366 CP(rqt32, rqt, tv_sec); 2367 CP(rqt32, rqt, tv_nsec); 2368 2369 if (uap->rmtp && 2370 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2371 return (EFAULT); 2372 error = kern_nanosleep(td, &rqt, &rmt); 2373 if (error && uap->rmtp) { 2374 int error2; 2375 2376 CP(rmt, rmt32, tv_sec); 2377 CP(rmt, rmt32, tv_nsec); 2378 2379 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2380 if (error2) 2381 error = error2; 2382 } 2383 return (error); 2384 } 2385 2386 int 2387 freebsd32_clock_gettime(struct thread *td, 2388 struct freebsd32_clock_gettime_args *uap) 2389 { 2390 struct timespec ats; 2391 struct timespec32 ats32; 2392 int error; 2393 2394 error = kern_clock_gettime(td, uap->clock_id, &ats); 2395 if (error == 0) { 2396 CP(ats, ats32, tv_sec); 2397 CP(ats, ats32, tv_nsec); 2398 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2399 } 2400 return (error); 2401 } 2402 2403 int 2404 freebsd32_clock_settime(struct thread *td, 2405 struct freebsd32_clock_settime_args *uap) 2406 { 2407 struct timespec ats; 2408 struct timespec32 ats32; 2409 int error; 2410 2411 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2412 if (error) 2413 return (error); 2414 CP(ats32, ats, tv_sec); 2415 CP(ats32, ats, tv_nsec); 2416 2417 return (kern_clock_settime(td, uap->clock_id, &ats)); 2418 } 2419 2420 int 2421 freebsd32_clock_getres(struct thread *td, 2422 struct freebsd32_clock_getres_args *uap) 2423 { 2424 struct timespec ts; 2425 struct timespec32 ts32; 2426 int error; 2427 2428 if (uap->tp == NULL) 2429 return (0); 2430 error = kern_clock_getres(td, uap->clock_id, &ts); 2431 if (error == 0) { 2432 CP(ts, ts32, tv_sec); 2433 CP(ts, ts32, tv_nsec); 2434 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2435 } 2436 return (error); 2437 } 2438 2439 int 2440 freebsd32_thr_new(struct thread *td, 2441 struct freebsd32_thr_new_args *uap) 2442 { 2443 struct thr_param32 param32; 2444 struct thr_param param; 2445 int error; 2446 2447 if (uap->param_size < 0 || 2448 uap->param_size > sizeof(struct thr_param32)) 2449 return (EINVAL); 2450 bzero(¶m, sizeof(struct thr_param)); 2451 bzero(¶m32, sizeof(struct thr_param32)); 2452 error = copyin(uap->param, ¶m32, uap->param_size); 2453 if (error != 0) 2454 return (error); 2455 param.start_func = PTRIN(param32.start_func); 2456 param.arg = PTRIN(param32.arg); 2457 param.stack_base = PTRIN(param32.stack_base); 2458 param.stack_size = param32.stack_size; 2459 param.tls_base = PTRIN(param32.tls_base); 2460 param.tls_size = param32.tls_size; 2461 param.child_tid = PTRIN(param32.child_tid); 2462 param.parent_tid = PTRIN(param32.parent_tid); 2463 param.flags = param32.flags; 2464 param.rtp = PTRIN(param32.rtp); 2465 param.spare[0] = PTRIN(param32.spare[0]); 2466 param.spare[1] = PTRIN(param32.spare[1]); 2467 param.spare[2] = PTRIN(param32.spare[2]); 2468 2469 return (kern_thr_new(td, ¶m)); 2470 } 2471 2472 int 2473 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2474 { 2475 struct timespec32 ts32; 2476 struct timespec ts, *tsp; 2477 int error; 2478 2479 error = 0; 2480 tsp = NULL; 2481 if (uap->timeout != NULL) { 2482 error = copyin((const void *)uap->timeout, (void *)&ts32, 2483 sizeof(struct timespec32)); 2484 if (error != 0) 2485 return (error); 2486 ts.tv_sec = ts32.tv_sec; 2487 ts.tv_nsec = ts32.tv_nsec; 2488 tsp = &ts; 2489 } 2490 return (kern_thr_suspend(td, tsp)); 2491 } 2492 2493 void 2494 siginfo_to_siginfo32(siginfo_t *src, struct siginfo32 *dst) 2495 { 2496 bzero(dst, sizeof(*dst)); 2497 dst->si_signo = src->si_signo; 2498 dst->si_errno = src->si_errno; 2499 dst->si_code = src->si_code; 2500 dst->si_pid = src->si_pid; 2501 dst->si_uid = src->si_uid; 2502 dst->si_status = src->si_status; 2503 dst->si_addr = (uintptr_t)src->si_addr; 2504 dst->si_value.sigval_int = src->si_value.sival_int; 2505 dst->si_timerid = src->si_timerid; 2506 dst->si_overrun = src->si_overrun; 2507 } 2508 2509 int 2510 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2511 { 2512 struct timespec32 ts32; 2513 struct timespec ts; 2514 struct timespec *timeout; 2515 sigset_t set; 2516 ksiginfo_t ksi; 2517 struct siginfo32 si32; 2518 int error; 2519 2520 if (uap->timeout) { 2521 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2522 if (error) 2523 return (error); 2524 ts.tv_sec = ts32.tv_sec; 2525 ts.tv_nsec = ts32.tv_nsec; 2526 timeout = &ts; 2527 } else 2528 timeout = NULL; 2529 2530 error = copyin(uap->set, &set, sizeof(set)); 2531 if (error) 2532 return (error); 2533 2534 error = kern_sigtimedwait(td, set, &ksi, timeout); 2535 if (error) 2536 return (error); 2537 2538 if (uap->info) { 2539 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2540 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2541 } 2542 2543 if (error == 0) 2544 td->td_retval[0] = ksi.ksi_signo; 2545 return (error); 2546 } 2547 2548 /* 2549 * MPSAFE 2550 */ 2551 int 2552 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2553 { 2554 ksiginfo_t ksi; 2555 struct siginfo32 si32; 2556 sigset_t set; 2557 int error; 2558 2559 error = copyin(uap->set, &set, sizeof(set)); 2560 if (error) 2561 return (error); 2562 2563 error = kern_sigtimedwait(td, set, &ksi, NULL); 2564 if (error) 2565 return (error); 2566 2567 if (uap->info) { 2568 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2569 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2570 } 2571 if (error == 0) 2572 td->td_retval[0] = ksi.ksi_signo; 2573 return (error); 2574 } 2575 2576 int 2577 freebsd32_cpuset_setid(struct thread *td, 2578 struct freebsd32_cpuset_setid_args *uap) 2579 { 2580 struct cpuset_setid_args ap; 2581 2582 ap.which = uap->which; 2583 ap.id = (uap->idlo | ((id_t)uap->idhi << 32)); 2584 ap.setid = uap->setid; 2585 2586 return (cpuset_setid(td, &ap)); 2587 } 2588 2589 int 2590 freebsd32_cpuset_getid(struct thread *td, 2591 struct freebsd32_cpuset_getid_args *uap) 2592 { 2593 struct cpuset_getid_args ap; 2594 2595 ap.level = uap->level; 2596 ap.which = uap->which; 2597 ap.id = (uap->idlo | ((id_t)uap->idhi << 32)); 2598 ap.setid = uap->setid; 2599 2600 return (cpuset_getid(td, &ap)); 2601 } 2602 2603 int 2604 freebsd32_cpuset_getaffinity(struct thread *td, 2605 struct freebsd32_cpuset_getaffinity_args *uap) 2606 { 2607 struct cpuset_getaffinity_args ap; 2608 2609 ap.level = uap->level; 2610 ap.which = uap->which; 2611 ap.id = (uap->idlo | ((id_t)uap->idhi << 32)); 2612 ap.cpusetsize = uap->cpusetsize; 2613 ap.mask = uap->mask; 2614 2615 return (cpuset_getaffinity(td, &ap)); 2616 } 2617 2618 int 2619 freebsd32_cpuset_setaffinity(struct thread *td, 2620 struct freebsd32_cpuset_setaffinity_args *uap) 2621 { 2622 struct cpuset_setaffinity_args ap; 2623 2624 ap.level = uap->level; 2625 ap.which = uap->which; 2626 ap.id = (uap->idlo | ((id_t)uap->idhi << 32)); 2627 ap.cpusetsize = uap->cpusetsize; 2628 ap.mask = uap->mask; 2629 2630 return (cpuset_setaffinity(td, &ap)); 2631 } 2632 2633 int 2634 freebsd32_nmount(struct thread *td, 2635 struct freebsd32_nmount_args /* { 2636 struct iovec *iovp; 2637 unsigned int iovcnt; 2638 int flags; 2639 } */ *uap) 2640 { 2641 struct uio *auio; 2642 struct iovec *iov; 2643 int error, k; 2644 2645 AUDIT_ARG(fflags, uap->flags); 2646 2647 /* 2648 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2649 * userspace to set this flag, but we must filter it out if we want 2650 * MNT_UPDATE on the root file system to work. 2651 * MNT_ROOTFS should only be set in the kernel in vfs_mountroot_try(). 2652 */ 2653 uap->flags &= ~MNT_ROOTFS; 2654 2655 /* 2656 * check that we have an even number of iovec's 2657 * and that we have at least two options. 2658 */ 2659 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2660 return (EINVAL); 2661 2662 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2663 if (error) 2664 return (error); 2665 for (iov = auio->uio_iov, k = 0; k < uap->iovcnt; ++k, ++iov) { 2666 if (iov->iov_len > MMAXOPTIONLEN) { 2667 free(auio, M_IOV); 2668 return (EINVAL); 2669 } 2670 } 2671 2672 error = vfs_donmount(td, uap->flags, auio); 2673 free(auio, M_IOV); 2674 return error; 2675 } 2676 2677 #if 0 2678 int 2679 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2680 { 2681 struct yyy32 *p32, s32; 2682 struct yyy *p = NULL, s; 2683 struct xxx_arg ap; 2684 int error; 2685 2686 if (uap->zzz) { 2687 error = copyin(uap->zzz, &s32, sizeof(s32)); 2688 if (error) 2689 return (error); 2690 /* translate in */ 2691 p = &s; 2692 } 2693 error = kern_xxx(td, p); 2694 if (error) 2695 return (error); 2696 if (uap->zzz) { 2697 /* translate out */ 2698 error = copyout(&s32, p32, sizeof(s32)); 2699 } 2700 return (error); 2701 } 2702 #endif 2703 2704 int 2705 syscall32_register(int *offset, struct sysent *new_sysent, 2706 struct sysent *old_sysent) 2707 { 2708 if (*offset == NO_SYSCALL) { 2709 int i; 2710 2711 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2712 if (freebsd32_sysent[i].sy_call == 2713 (sy_call_t *)lkmnosys) 2714 break; 2715 if (i == SYS_MAXSYSCALL) 2716 return (ENFILE); 2717 *offset = i; 2718 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2719 return (EINVAL); 2720 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2721 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2722 return (EEXIST); 2723 2724 *old_sysent = freebsd32_sysent[*offset]; 2725 freebsd32_sysent[*offset] = *new_sysent; 2726 return 0; 2727 } 2728 2729 int 2730 syscall32_deregister(int *offset, struct sysent *old_sysent) 2731 { 2732 2733 if (*offset) 2734 freebsd32_sysent[*offset] = *old_sysent; 2735 return 0; 2736 } 2737 2738 int 2739 syscall32_module_handler(struct module *mod, int what, void *arg) 2740 { 2741 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2742 modspecific_t ms; 2743 int error; 2744 2745 switch (what) { 2746 case MOD_LOAD: 2747 error = syscall32_register(data->offset, data->new_sysent, 2748 &data->old_sysent); 2749 if (error) { 2750 /* Leave a mark so we know to safely unload below. */ 2751 data->offset = NULL; 2752 return error; 2753 } 2754 ms.intval = *data->offset; 2755 MOD_XLOCK; 2756 module_setspecific(mod, &ms); 2757 MOD_XUNLOCK; 2758 if (data->chainevh) 2759 error = data->chainevh(mod, what, data->chainarg); 2760 return (error); 2761 case MOD_UNLOAD: 2762 /* 2763 * MOD_LOAD failed, so just return without calling the 2764 * chained handler since we didn't pass along the MOD_LOAD 2765 * event. 2766 */ 2767 if (data->offset == NULL) 2768 return (0); 2769 if (data->chainevh) { 2770 error = data->chainevh(mod, what, data->chainarg); 2771 if (error) 2772 return (error); 2773 } 2774 error = syscall32_deregister(data->offset, &data->old_sysent); 2775 return (error); 2776 default: 2777 error = EOPNOTSUPP; 2778 if (data->chainevh) 2779 error = data->chainevh(mod, what, data->chainarg); 2780 return (error); 2781 } 2782 } 2783