freebsd32_misc.c revision 147813
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: head/sys/compat/freebsd32/freebsd32_misc.c 147813 2005-07-07 18:17:55Z jhb $"); 29 30#include "opt_compat.h" 31 32#include <sys/param.h> 33#include <sys/systm.h> 34#include <sys/bus.h> 35#include <sys/exec.h> 36#include <sys/fcntl.h> 37#include <sys/filedesc.h> 38#include <sys/namei.h> 39#include <sys/imgact.h> 40#include <sys/kernel.h> 41#include <sys/lock.h> 42#include <sys/malloc.h> 43#include <sys/file.h> /* Must come after sys/malloc.h */ 44#include <sys/mman.h> 45#include <sys/module.h> 46#include <sys/mount.h> 47#include <sys/mutex.h> 48#include <sys/namei.h> 49#include <sys/param.h> 50#include <sys/proc.h> 51#include <sys/reboot.h> 52#include <sys/resource.h> 53#include <sys/resourcevar.h> 54#include <sys/selinfo.h> 55#include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 56#include <sys/pipe.h> /* Must come after sys/selinfo.h */ 57#include <sys/signal.h> 58#include <sys/signalvar.h> 59#include <sys/socket.h> 60#include <sys/socketvar.h> 61#include <sys/stat.h> 62#include <sys/syscallsubr.h> 63#include <sys/sysctl.h> 64#include <sys/sysent.h> 65#include <sys/sysproto.h> 66#include <sys/systm.h> 67#include <sys/unistd.h> 68#include <sys/vnode.h> 69#include <sys/wait.h> 70 71#include <vm/vm.h> 72#include <vm/vm_kern.h> 73#include <vm/vm_param.h> 74#include <vm/pmap.h> 75#include <vm/vm_map.h> 76#include <vm/vm_object.h> 77#include <vm/vm_extern.h> 78 79#include <compat/freebsd32/freebsd32_util.h> 80#include <compat/freebsd32/freebsd32.h> 81#include <compat/freebsd32/freebsd32_proto.h> 82 83CTASSERT(sizeof(struct timeval32) == 8); 84CTASSERT(sizeof(struct timespec32) == 8); 85CTASSERT(sizeof(struct statfs32) == 256); 86CTASSERT(sizeof(struct rusage32) == 72); 87 88int 89freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 90{ 91 int error, status; 92 struct rusage32 ru32; 93 struct rusage ru, *rup; 94 95 if (uap->rusage != NULL) 96 rup = &ru; 97 else 98 rup = NULL; 99 error = kern_wait(td, uap->pid, &status, uap->options, rup); 100 if (error) 101 return (error); 102 if (uap->status != NULL) 103 error = copyout(&status, uap->status, sizeof(status)); 104 if (uap->rusage != NULL && error == 0) { 105 TV_CP(ru, ru32, ru_utime); 106 TV_CP(ru, ru32, ru_stime); 107 CP(ru, ru32, ru_maxrss); 108 CP(ru, ru32, ru_ixrss); 109 CP(ru, ru32, ru_idrss); 110 CP(ru, ru32, ru_isrss); 111 CP(ru, ru32, ru_minflt); 112 CP(ru, ru32, ru_majflt); 113 CP(ru, ru32, ru_nswap); 114 CP(ru, ru32, ru_inblock); 115 CP(ru, ru32, ru_oublock); 116 CP(ru, ru32, ru_msgsnd); 117 CP(ru, ru32, ru_msgrcv); 118 CP(ru, ru32, ru_nsignals); 119 CP(ru, ru32, ru_nvcsw); 120 CP(ru, ru32, ru_nivcsw); 121 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 122 } 123 return (error); 124} 125 126#ifdef COMPAT_FREEBSD4 127static void 128copy_statfs(struct statfs *in, struct statfs32 *out) 129{ 130 CP(*in, *out, f_bsize); 131 CP(*in, *out, f_iosize); 132 CP(*in, *out, f_blocks); 133 CP(*in, *out, f_bfree); 134 CP(*in, *out, f_bavail); 135 CP(*in, *out, f_files); 136 CP(*in, *out, f_ffree); 137 CP(*in, *out, f_fsid); 138 CP(*in, *out, f_owner); 139 CP(*in, *out, f_type); 140 CP(*in, *out, f_flags); 141 CP(*in, *out, f_flags); 142 CP(*in, *out, f_syncwrites); 143 CP(*in, *out, f_asyncwrites); 144 bcopy(in->f_fstypename, 145 out->f_fstypename, MFSNAMELEN); 146 bcopy(in->f_mntonname, 147 out->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 148 CP(*in, *out, f_syncreads); 149 CP(*in, *out, f_asyncreads); 150 bcopy(in->f_mntfromname, 151 out->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 152} 153#endif 154 155#ifdef COMPAT_FREEBSD4 156int 157freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 158{ 159 struct statfs *buf, *sp; 160 struct statfs32 stat32; 161 size_t count, size; 162 int error; 163 164 count = uap->bufsize / sizeof(struct statfs32); 165 size = count * sizeof(struct statfs); 166 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags); 167 if (size > 0) { 168 count = td->td_retval[0]; 169 sp = buf; 170 while (count > 0 && error == 0) { 171 copy_statfs(sp, &stat32); 172 error = copyout(&stat32, uap->buf, sizeof(stat32)); 173 sp++; 174 uap->buf++; 175 count--; 176 } 177 free(buf, M_TEMP); 178 } 179 return (error); 180} 181#endif 182 183struct sigaltstack32 { 184 u_int32_t ss_sp; 185 u_int32_t ss_size; 186 int ss_flags; 187}; 188 189CTASSERT(sizeof(struct sigaltstack32) == 12); 190 191int 192freebsd32_sigaltstack(struct thread *td, 193 struct freebsd32_sigaltstack_args *uap) 194{ 195 struct sigaltstack32 s32; 196 struct sigaltstack ss, oss, *ssp; 197 int error; 198 199 if (uap->ss != NULL) { 200 error = copyin(uap->ss, &s32, sizeof(s32)); 201 if (error) 202 return (error); 203 PTRIN_CP(s32, ss, ss_sp); 204 CP(s32, ss, ss_size); 205 CP(s32, ss, ss_flags); 206 ssp = &ss; 207 } else 208 ssp = NULL; 209 error = kern_sigaltstack(td, ssp, &oss); 210 if (error == 0 && uap->oss != NULL) { 211 PTROUT_CP(oss, s32, ss_sp); 212 CP(oss, s32, ss_size); 213 CP(oss, s32, ss_flags); 214 error = copyout(&s32, uap->oss, sizeof(s32)); 215 } 216 return (error); 217} 218 219/* 220 * Custom version of exec_copyin_args() so that we can translate 221 * the pointers. 222 */ 223static int 224freebsd32_exec_copyin_args(struct image_args *args, char *fname, 225 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 226{ 227 char *argp, *envp; 228 u_int32_t *p32, arg; 229 size_t length; 230 int error; 231 232 bzero(args, sizeof(*args)); 233 if (argv == NULL) 234 return (EFAULT); 235 236 /* 237 * Allocate temporary demand zeroed space for argument and 238 * environment strings 239 */ 240 args->buf = (char *) kmem_alloc_wait(exec_map, 241 PATH_MAX + ARG_MAX + MAXSHELLCMDLEN); 242 if (args->buf == NULL) 243 return (ENOMEM); 244 args->begin_argv = args->buf; 245 args->endp = args->begin_argv; 246 args->stringspace = ARG_MAX; 247 248 args->fname = args->buf + ARG_MAX; 249 250 /* 251 * Copy the file name. 252 */ 253 error = (segflg == UIO_SYSSPACE) ? 254 copystr(fname, args->fname, PATH_MAX, &length) : 255 copyinstr(fname, args->fname, PATH_MAX, &length); 256 if (error != 0) 257 return (error); 258 259 /* 260 * extract arguments first 261 */ 262 p32 = argv; 263 for (;;) { 264 error = copyin(p32++, &arg, sizeof(arg)); 265 if (error) 266 return (error); 267 if (arg == 0) 268 break; 269 argp = PTRIN(arg); 270 error = copyinstr(argp, args->endp, args->stringspace, &length); 271 if (error) { 272 if (error == ENAMETOOLONG) 273 return (E2BIG); 274 else 275 return (error); 276 } 277 args->stringspace -= length; 278 args->endp += length; 279 args->argc++; 280 } 281 282 args->begin_envv = args->endp; 283 284 /* 285 * extract environment strings 286 */ 287 if (envv) { 288 p32 = envv; 289 for (;;) { 290 error = copyin(p32++, &arg, sizeof(arg)); 291 if (error) 292 return (error); 293 if (arg == 0) 294 break; 295 envp = PTRIN(arg); 296 error = copyinstr(envp, args->endp, args->stringspace, 297 &length); 298 if (error) { 299 if (error == ENAMETOOLONG) 300 return (E2BIG); 301 else 302 return (error); 303 } 304 args->stringspace -= length; 305 args->endp += length; 306 args->envc++; 307 } 308 } 309 310 return (0); 311} 312 313int 314freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 315{ 316 struct image_args eargs; 317 int error; 318 319 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 320 uap->argv, uap->envv); 321 if (error == 0) 322 error = kern_execve(td, &eargs, NULL); 323 exec_free_args(&eargs); 324 return (error); 325} 326 327#ifdef __ia64__ 328static int 329freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 330 int prot, int fd, off_t pos) 331{ 332 vm_map_t map; 333 vm_map_entry_t entry; 334 int rv; 335 336 map = &td->td_proc->p_vmspace->vm_map; 337 if (fd != -1) 338 prot |= VM_PROT_WRITE; 339 340 if (vm_map_lookup_entry(map, start, &entry)) { 341 if ((entry->protection & prot) != prot) { 342 rv = vm_map_protect(map, 343 trunc_page(start), 344 round_page(end), 345 entry->protection | prot, 346 FALSE); 347 if (rv != KERN_SUCCESS) 348 return (EINVAL); 349 } 350 } else { 351 vm_offset_t addr = trunc_page(start); 352 rv = vm_map_find(map, 0, 0, 353 &addr, PAGE_SIZE, FALSE, prot, 354 VM_PROT_ALL, 0); 355 if (rv != KERN_SUCCESS) 356 return (EINVAL); 357 } 358 359 if (fd != -1) { 360 struct pread_args r; 361 r.fd = fd; 362 r.buf = (void *) start; 363 r.nbyte = end - start; 364 r.offset = pos; 365 return (pread(td, &r)); 366 } else { 367 while (start < end) { 368 subyte((void *) start, 0); 369 start++; 370 } 371 return (0); 372 } 373} 374#endif 375 376int 377freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 378{ 379 struct mmap_args ap; 380 vm_offset_t addr = (vm_offset_t) uap->addr; 381 vm_size_t len = uap->len; 382 int prot = uap->prot; 383 int flags = uap->flags; 384 int fd = uap->fd; 385 off_t pos = (uap->poslo 386 | ((off_t)uap->poshi << 32)); 387#ifdef __ia64__ 388 vm_size_t pageoff; 389 int error; 390 391 /* 392 * Attempt to handle page size hassles. 393 */ 394 pageoff = (pos & PAGE_MASK); 395 if (flags & MAP_FIXED) { 396 vm_offset_t start, end; 397 start = addr; 398 end = addr + len; 399 400 if (start != trunc_page(start)) { 401 error = freebsd32_mmap_partial(td, start, 402 round_page(start), prot, 403 fd, pos); 404 if (fd != -1) 405 pos += round_page(start) - start; 406 start = round_page(start); 407 } 408 if (end != round_page(end)) { 409 vm_offset_t t = trunc_page(end); 410 error = freebsd32_mmap_partial(td, t, end, 411 prot, fd, 412 pos + t - start); 413 end = trunc_page(end); 414 } 415 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 416 /* 417 * We can't map this region at all. The specified 418 * address doesn't have the same alignment as the file 419 * position. Fake the mapping by simply reading the 420 * entire region into memory. First we need to make 421 * sure the region exists. 422 */ 423 vm_map_t map; 424 struct pread_args r; 425 int rv; 426 427 prot |= VM_PROT_WRITE; 428 map = &td->td_proc->p_vmspace->vm_map; 429 rv = vm_map_remove(map, start, end); 430 if (rv != KERN_SUCCESS) 431 return (EINVAL); 432 rv = vm_map_find(map, 0, 0, 433 &start, end - start, FALSE, 434 prot, VM_PROT_ALL, 0); 435 if (rv != KERN_SUCCESS) 436 return (EINVAL); 437 r.fd = fd; 438 r.buf = (void *) start; 439 r.nbyte = end - start; 440 r.offset = pos; 441 error = pread(td, &r); 442 if (error) 443 return (error); 444 445 td->td_retval[0] = addr; 446 return (0); 447 } 448 if (end == start) { 449 /* 450 * After dealing with the ragged ends, there 451 * might be none left. 452 */ 453 td->td_retval[0] = addr; 454 return (0); 455 } 456 addr = start; 457 len = end - start; 458 } 459#endif 460 461 ap.addr = (void *) addr; 462 ap.len = len; 463 ap.prot = prot; 464 ap.flags = flags; 465 ap.fd = fd; 466 ap.pos = pos; 467 468 return (mmap(td, &ap)); 469} 470 471struct itimerval32 { 472 struct timeval32 it_interval; 473 struct timeval32 it_value; 474}; 475 476CTASSERT(sizeof(struct itimerval32) == 16); 477 478int 479freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 480{ 481 struct itimerval itv, oitv, *itvp; 482 struct itimerval32 i32; 483 int error; 484 485 if (uap->itv != NULL) { 486 error = copyin(uap->itv, &i32, sizeof(i32)); 487 if (error) 488 return (error); 489 TV_CP(i32, itv, it_interval); 490 TV_CP(i32, itv, it_value); 491 itvp = &itv; 492 } else 493 itvp = NULL; 494 error = kern_setitimer(td, uap->which, itvp, &oitv); 495 if (error || uap->oitv == NULL) 496 return (error); 497 TV_CP(oitv, i32, it_interval); 498 TV_CP(oitv, i32, it_value); 499 return (copyout(&i32, uap->oitv, sizeof(i32))); 500} 501 502int 503freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 504{ 505 struct itimerval itv; 506 struct itimerval32 i32; 507 int error; 508 509 error = kern_getitimer(td, uap->which, &itv); 510 if (error || uap->itv == NULL) 511 return (error); 512 TV_CP(itv, i32, it_interval); 513 TV_CP(itv, i32, it_value); 514 return (copyout(&i32, uap->itv, sizeof(i32))); 515} 516 517int 518freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 519{ 520 struct timeval32 tv32; 521 struct timeval tv, *tvp; 522 int error; 523 524 if (uap->tv != NULL) { 525 error = copyin(uap->tv, &tv32, sizeof(tv32)); 526 if (error) 527 return (error); 528 CP(tv32, tv, tv_sec); 529 CP(tv32, tv, tv_usec); 530 tvp = &tv; 531 } else 532 tvp = NULL; 533 /* 534 * XXX big-endian needs to convert the fd_sets too. 535 * XXX Do pointers need PTRIN()? 536 */ 537 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp)); 538} 539 540struct kevent32 { 541 u_int32_t ident; /* identifier for this event */ 542 short filter; /* filter for event */ 543 u_short flags; 544 u_int fflags; 545 int32_t data; 546 u_int32_t udata; /* opaque user data identifier */ 547}; 548 549CTASSERT(sizeof(struct kevent32) == 20); 550static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 551static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 552 553/* 554 * Copy 'count' items into the destination list pointed to by uap->eventlist. 555 */ 556static int 557freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 558{ 559 struct freebsd32_kevent_args *uap; 560 struct kevent32 ks32[KQ_NEVENTS]; 561 int i, error = 0; 562 563 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 564 uap = (struct freebsd32_kevent_args *)arg; 565 566 for (i = 0; i < count; i++) { 567 CP(kevp[i], ks32[i], ident); 568 CP(kevp[i], ks32[i], filter); 569 CP(kevp[i], ks32[i], flags); 570 CP(kevp[i], ks32[i], fflags); 571 CP(kevp[i], ks32[i], data); 572 PTROUT_CP(kevp[i], ks32[i], udata); 573 } 574 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 575 if (error == 0) 576 uap->eventlist += count; 577 return (error); 578} 579 580/* 581 * Copy 'count' items from the list pointed to by uap->changelist. 582 */ 583static int 584freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 585{ 586 struct freebsd32_kevent_args *uap; 587 struct kevent32 ks32[KQ_NEVENTS]; 588 int i, error = 0; 589 590 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 591 uap = (struct freebsd32_kevent_args *)arg; 592 593 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 594 if (error) 595 goto done; 596 uap->changelist += count; 597 598 for (i = 0; i < count; i++) { 599 CP(ks32[i], kevp[i], ident); 600 CP(ks32[i], kevp[i], filter); 601 CP(ks32[i], kevp[i], flags); 602 CP(ks32[i], kevp[i], fflags); 603 CP(ks32[i], kevp[i], data); 604 PTRIN_CP(ks32[i], kevp[i], udata); 605 } 606done: 607 return (error); 608} 609 610int 611freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 612{ 613 struct timespec32 ts32; 614 struct timespec ts, *tsp; 615 struct kevent_copyops k_ops = { uap, 616 freebsd32_kevent_copyout, 617 freebsd32_kevent_copyin}; 618 int error; 619 620 621 if (uap->timeout) { 622 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 623 if (error) 624 return (error); 625 CP(ts32, ts, tv_sec); 626 CP(ts32, ts, tv_nsec); 627 tsp = &ts; 628 } else 629 tsp = NULL; 630 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 631 &k_ops, tsp); 632 return (error); 633} 634 635int 636freebsd32_gettimeofday(struct thread *td, 637 struct freebsd32_gettimeofday_args *uap) 638{ 639 struct timeval atv; 640 struct timeval32 atv32; 641 struct timezone rtz; 642 int error = 0; 643 644 if (uap->tp) { 645 microtime(&atv); 646 CP(atv, atv32, tv_sec); 647 CP(atv, atv32, tv_usec); 648 error = copyout(&atv32, uap->tp, sizeof (atv32)); 649 } 650 if (error == 0 && uap->tzp != NULL) { 651 rtz.tz_minuteswest = tz_minuteswest; 652 rtz.tz_dsttime = tz_dsttime; 653 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 654 } 655 return (error); 656} 657 658int 659freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 660{ 661 struct rusage32 s32; 662 struct rusage s; 663 int error; 664 665 error = kern_getrusage(td, uap->who, &s); 666 if (error) 667 return (error); 668 if (uap->rusage != NULL) { 669 TV_CP(s, s32, ru_utime); 670 TV_CP(s, s32, ru_stime); 671 CP(s, s32, ru_maxrss); 672 CP(s, s32, ru_ixrss); 673 CP(s, s32, ru_idrss); 674 CP(s, s32, ru_isrss); 675 CP(s, s32, ru_minflt); 676 CP(s, s32, ru_majflt); 677 CP(s, s32, ru_nswap); 678 CP(s, s32, ru_inblock); 679 CP(s, s32, ru_oublock); 680 CP(s, s32, ru_msgsnd); 681 CP(s, s32, ru_msgrcv); 682 CP(s, s32, ru_nsignals); 683 CP(s, s32, ru_nvcsw); 684 CP(s, s32, ru_nivcsw); 685 error = copyout(&s32, uap->rusage, sizeof(s32)); 686 } 687 return (error); 688} 689 690struct iovec32 { 691 u_int32_t iov_base; 692 int iov_len; 693}; 694 695CTASSERT(sizeof(struct iovec32) == 8); 696 697static int 698freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 699{ 700 struct iovec32 iov32; 701 struct iovec *iov; 702 struct uio *uio; 703 u_int iovlen; 704 int error, i; 705 706 *uiop = NULL; 707 if (iovcnt > UIO_MAXIOV) 708 return (EINVAL); 709 iovlen = iovcnt * sizeof(struct iovec); 710 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 711 iov = (struct iovec *)(uio + 1); 712 for (i = 0; i < iovcnt; i++) { 713 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 714 if (error) { 715 free(uio, M_IOV); 716 return (error); 717 } 718 iov[i].iov_base = PTRIN(iov32.iov_base); 719 iov[i].iov_len = iov32.iov_len; 720 } 721 uio->uio_iov = iov; 722 uio->uio_iovcnt = iovcnt; 723 uio->uio_segflg = UIO_USERSPACE; 724 uio->uio_offset = -1; 725 uio->uio_resid = 0; 726 for (i = 0; i < iovcnt; i++) { 727 if (iov->iov_len > INT_MAX - uio->uio_resid) { 728 free(uio, M_IOV); 729 return (EINVAL); 730 } 731 uio->uio_resid += iov->iov_len; 732 iov++; 733 } 734 *uiop = uio; 735 return (0); 736} 737 738int 739freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 740{ 741 struct uio *auio; 742 int error; 743 744 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 745 if (error) 746 return (error); 747 error = kern_readv(td, uap->fd, auio); 748 free(auio, M_IOV); 749 return (error); 750} 751 752int 753freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 754{ 755 struct uio *auio; 756 int error; 757 758 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 759 if (error) 760 return (error); 761 error = kern_writev(td, uap->fd, auio); 762 free(auio, M_IOV); 763 return (error); 764} 765 766int 767freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 768{ 769 struct uio *auio; 770 int error; 771 772 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 773 if (error) 774 return (error); 775 error = kern_preadv(td, uap->fd, auio, uap->offset); 776 free(auio, M_IOV); 777 return (error); 778} 779 780int 781freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 782{ 783 struct uio *auio; 784 int error; 785 786 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 787 if (error) 788 return (error); 789 error = kern_pwritev(td, uap->fd, auio, uap->offset); 790 free(auio, M_IOV); 791 return (error); 792} 793 794int 795freebsd32_settimeofday(struct thread *td, 796 struct freebsd32_settimeofday_args *uap) 797{ 798 struct timeval32 tv32; 799 struct timeval tv, *tvp; 800 struct timezone tz, *tzp; 801 int error; 802 803 if (uap->tv) { 804 error = copyin(uap->tv, &tv32, sizeof(tv32)); 805 if (error) 806 return (error); 807 CP(tv32, tv, tv_sec); 808 CP(tv32, tv, tv_usec); 809 tvp = &tv; 810 } else 811 tvp = NULL; 812 if (uap->tzp) { 813 error = copyin(uap->tzp, &tz, sizeof(tz)); 814 if (error) 815 return (error); 816 tzp = &tz; 817 } else 818 tzp = NULL; 819 return (kern_settimeofday(td, tvp, tzp)); 820} 821 822int 823freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 824{ 825 struct timeval32 s32[2]; 826 struct timeval s[2], *sp; 827 int error; 828 829 if (uap->tptr != NULL) { 830 error = copyin(uap->tptr, s32, sizeof(s32)); 831 if (error) 832 return (error); 833 CP(s32[0], s[0], tv_sec); 834 CP(s32[0], s[0], tv_usec); 835 CP(s32[1], s[1], tv_sec); 836 CP(s32[1], s[1], tv_usec); 837 sp = s; 838 } else 839 sp = NULL; 840 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 841} 842 843int 844freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 845{ 846 struct timeval32 tv32; 847 struct timeval delta, olddelta, *deltap; 848 int error; 849 850 if (uap->delta) { 851 error = copyin(uap->delta, &tv32, sizeof(tv32)); 852 if (error) 853 return (error); 854 CP(tv32, delta, tv_sec); 855 CP(tv32, delta, tv_usec); 856 deltap = δ 857 } else 858 deltap = NULL; 859 error = kern_adjtime(td, deltap, &olddelta); 860 if (uap->olddelta && error == 0) { 861 CP(olddelta, tv32, tv_sec); 862 CP(olddelta, tv32, tv_usec); 863 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 864 } 865 return (error); 866} 867 868#ifdef COMPAT_FREEBSD4 869int 870freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 871{ 872 struct statfs32 s32; 873 struct statfs s; 874 int error; 875 876 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 877 if (error) 878 return (error); 879 copy_statfs(&s, &s32); 880 return (copyout(&s32, uap->buf, sizeof(s32))); 881} 882#endif 883 884#ifdef COMPAT_FREEBSD4 885int 886freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 887{ 888 struct statfs32 s32; 889 struct statfs s; 890 int error; 891 892 error = kern_fstatfs(td, uap->fd, &s); 893 if (error) 894 return (error); 895 copy_statfs(&s, &s32); 896 return (copyout(&s32, uap->buf, sizeof(s32))); 897} 898#endif 899 900#ifdef COMPAT_FREEBSD4 901int 902freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 903{ 904 struct statfs32 s32; 905 struct statfs s; 906 fhandle_t fh; 907 int error; 908 909 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 910 return (error); 911 error = kern_fhstatfs(td, fh, &s); 912 if (error) 913 return (error); 914 copy_statfs(&s, &s32); 915 return (copyout(&s32, uap->buf, sizeof(s32))); 916} 917#endif 918 919int 920freebsd32_semsys(struct thread *td, struct freebsd32_semsys_args *uap) 921{ 922 /* 923 * Vector through to semsys if it is loaded. 924 */ 925 return sysent[169].sy_call(td, uap); 926} 927 928int 929freebsd32_msgsys(struct thread *td, struct freebsd32_msgsys_args *uap) 930{ 931 /* 932 * Vector through to msgsys if it is loaded. 933 */ 934 return sysent[170].sy_call(td, uap); 935} 936 937int 938freebsd32_shmsys(struct thread *td, struct freebsd32_shmsys_args *uap) 939{ 940 /* 941 * Vector through to shmsys if it is loaded. 942 */ 943 return sysent[171].sy_call(td, uap); 944} 945 946int 947freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 948{ 949 struct pread_args ap; 950 951 ap.fd = uap->fd; 952 ap.buf = uap->buf; 953 ap.nbyte = uap->nbyte; 954 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 955 return (pread(td, &ap)); 956} 957 958int 959freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 960{ 961 struct pwrite_args ap; 962 963 ap.fd = uap->fd; 964 ap.buf = uap->buf; 965 ap.nbyte = uap->nbyte; 966 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 967 return (pwrite(td, &ap)); 968} 969 970int 971freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 972{ 973 int error; 974 struct lseek_args ap; 975 off_t pos; 976 977 ap.fd = uap->fd; 978 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 979 ap.whence = uap->whence; 980 error = lseek(td, &ap); 981 /* Expand the quad return into two parts for eax and edx */ 982 pos = *(off_t *)(td->td_retval); 983 td->td_retval[0] = pos & 0xffffffff; /* %eax */ 984 td->td_retval[1] = pos >> 32; /* %edx */ 985 return error; 986} 987 988int 989freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 990{ 991 struct truncate_args ap; 992 993 ap.path = uap->path; 994 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 995 return (truncate(td, &ap)); 996} 997 998int 999freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1000{ 1001 struct ftruncate_args ap; 1002 1003 ap.fd = uap->fd; 1004 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1005 return (ftruncate(td, &ap)); 1006} 1007 1008#ifdef COMPAT_FREEBSD4 1009int 1010freebsd4_freebsd32_sendfile(struct thread *td, 1011 struct freebsd4_freebsd32_sendfile_args *uap) 1012{ 1013 struct freebsd4_sendfile_args ap; 1014 1015 ap.fd = uap->fd; 1016 ap.s = uap->s; 1017 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1018 ap.nbytes = uap->nbytes; /* XXX check */ 1019 ap.hdtr = uap->hdtr; /* XXX check */ 1020 ap.sbytes = uap->sbytes; /* XXX FIXME!! */ 1021 ap.flags = uap->flags; 1022 return (freebsd4_sendfile(td, &ap)); 1023} 1024#endif 1025 1026int 1027freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1028{ 1029 struct sendfile_args ap; 1030 1031 ap.fd = uap->fd; 1032 ap.s = uap->s; 1033 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1034 ap.nbytes = uap->nbytes; /* XXX check */ 1035 ap.hdtr = uap->hdtr; /* XXX check */ 1036 ap.sbytes = uap->sbytes; /* XXX FIXME!! */ 1037 ap.flags = uap->flags; 1038 return (sendfile(td, &ap)); 1039} 1040 1041struct stat32 { 1042 dev_t st_dev; 1043 ino_t st_ino; 1044 mode_t st_mode; 1045 nlink_t st_nlink; 1046 uid_t st_uid; 1047 gid_t st_gid; 1048 dev_t st_rdev; 1049 struct timespec32 st_atimespec; 1050 struct timespec32 st_mtimespec; 1051 struct timespec32 st_ctimespec; 1052 off_t st_size; 1053 int64_t st_blocks; 1054 u_int32_t st_blksize; 1055 u_int32_t st_flags; 1056 u_int32_t st_gen; 1057 struct timespec32 st_birthtimespec; 1058 unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec32)); 1059 unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec32)); 1060}; 1061 1062 1063CTASSERT(sizeof(struct stat32) == 96); 1064 1065static void 1066copy_stat( struct stat *in, struct stat32 *out) 1067{ 1068 CP(*in, *out, st_dev); 1069 CP(*in, *out, st_ino); 1070 CP(*in, *out, st_mode); 1071 CP(*in, *out, st_nlink); 1072 CP(*in, *out, st_uid); 1073 CP(*in, *out, st_gid); 1074 CP(*in, *out, st_rdev); 1075 TS_CP(*in, *out, st_atimespec); 1076 TS_CP(*in, *out, st_mtimespec); 1077 TS_CP(*in, *out, st_ctimespec); 1078 CP(*in, *out, st_size); 1079 CP(*in, *out, st_blocks); 1080 CP(*in, *out, st_blksize); 1081 CP(*in, *out, st_flags); 1082 CP(*in, *out, st_gen); 1083} 1084 1085int 1086freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1087{ 1088 struct stat sb; 1089 struct stat32 sb32; 1090 int error; 1091 1092 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1093 if (error) 1094 return (error); 1095 copy_stat(&sb, &sb32); 1096 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1097 return (error); 1098} 1099 1100int 1101freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1102{ 1103 struct stat ub; 1104 struct stat32 ub32; 1105 int error; 1106 1107 error = kern_fstat(td, uap->fd, &ub); 1108 if (error) 1109 return (error); 1110 copy_stat(&ub, &ub32); 1111 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1112 return (error); 1113} 1114 1115int 1116freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1117{ 1118 struct stat sb; 1119 struct stat32 sb32; 1120 int error; 1121 1122 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1123 if (error) 1124 return (error); 1125 copy_stat(&sb, &sb32); 1126 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1127 return (error); 1128} 1129 1130/* 1131 * MPSAFE 1132 */ 1133int 1134freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1135{ 1136 int error, name[CTL_MAXNAME]; 1137 size_t j, oldlen; 1138 1139 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1140 return (EINVAL); 1141 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1142 if (error) 1143 return (error); 1144 mtx_lock(&Giant); 1145 if (uap->oldlenp) 1146 oldlen = fuword32(uap->oldlenp); 1147 else 1148 oldlen = 0; 1149 error = userland_sysctl(td, name, uap->namelen, 1150 uap->old, &oldlen, 1, 1151 uap->new, uap->newlen, &j, SCTL_MASK32); 1152 if (error && error != ENOMEM) 1153 goto done2; 1154 if (uap->oldlenp) 1155 suword32(uap->oldlenp, j); 1156done2: 1157 mtx_unlock(&Giant); 1158 return (error); 1159} 1160 1161struct sigaction32 { 1162 u_int32_t sa_u; 1163 int sa_flags; 1164 sigset_t sa_mask; 1165}; 1166 1167CTASSERT(sizeof(struct sigaction32) == 24); 1168 1169int 1170freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1171{ 1172 struct sigaction32 s32; 1173 struct sigaction sa, osa, *sap; 1174 int error; 1175 1176 if (uap->act) { 1177 error = copyin(uap->act, &s32, sizeof(s32)); 1178 if (error) 1179 return (error); 1180 sa.sa_handler = PTRIN(s32.sa_u); 1181 CP(s32, sa, sa_flags); 1182 CP(s32, sa, sa_mask); 1183 sap = &sa; 1184 } else 1185 sap = NULL; 1186 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 1187 if (error == 0 && uap->oact != NULL) { 1188 s32.sa_u = PTROUT(osa.sa_handler); 1189 CP(osa, s32, sa_flags); 1190 CP(osa, s32, sa_mask); 1191 error = copyout(&s32, uap->oact, sizeof(s32)); 1192 } 1193 return (error); 1194} 1195 1196#ifdef COMPAT_FREEBSD4 1197int 1198freebsd4_freebsd32_sigaction(struct thread *td, 1199 struct freebsd4_freebsd32_sigaction_args *uap) 1200{ 1201 struct sigaction32 s32; 1202 struct sigaction sa, osa, *sap; 1203 int error; 1204 1205 if (uap->act) { 1206 error = copyin(uap->act, &s32, sizeof(s32)); 1207 if (error) 1208 return (error); 1209 sa.sa_handler = PTRIN(s32.sa_u); 1210 CP(s32, sa, sa_flags); 1211 CP(s32, sa, sa_mask); 1212 sap = &sa; 1213 } else 1214 sap = NULL; 1215 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 1216 if (error == 0 && uap->oact != NULL) { 1217 s32.sa_u = PTROUT(osa.sa_handler); 1218 CP(osa, s32, sa_flags); 1219 CP(osa, s32, sa_mask); 1220 error = copyout(&s32, uap->oact, sizeof(s32)); 1221 } 1222 return (error); 1223} 1224#endif 1225 1226int 1227freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 1228{ 1229 struct timespec32 rmt32, rqt32; 1230 struct timespec rmt, rqt; 1231 int error; 1232 1233 error = copyin(uap->rqtp, &rqt32, sizeof(rqt)); 1234 if (error) 1235 return (error); 1236 1237 CP(rqt32, rqt, tv_sec); 1238 CP(rqt32, rqt, tv_nsec); 1239 1240 if (uap->rmtp && 1241 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 1242 return (EFAULT); 1243 error = kern_nanosleep(td, &rqt, &rmt); 1244 if (error && uap->rmtp) { 1245 int error2; 1246 1247 CP(rmt, rmt32, tv_sec); 1248 CP(rmt, rmt32, tv_nsec); 1249 1250 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt)); 1251 if (error2) 1252 error = error2; 1253 } 1254 return (error); 1255} 1256 1257#if 0 1258 1259int 1260freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 1261{ 1262 int error; 1263 struct yyy32 *p32, s32; 1264 struct yyy *p = NULL, s; 1265 1266 if (uap->zzz) { 1267 error = copyin(uap->zzz, &s32, sizeof(s32)); 1268 if (error) 1269 return (error); 1270 /* translate in */ 1271 p = &s; 1272 } 1273 error = kern_xxx(td, p); 1274 if (error) 1275 return (error); 1276 if (uap->zzz) { 1277 /* translate out */ 1278 error = copyout(&s32, p32, sizeof(s32)); 1279 } 1280 return (error); 1281} 1282 1283#endif 1284