freebsd32_misc.c revision 142934
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 142934 2005-03-01 17:45:55Z ps $"); 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/pipe.h> /* Must come after sys/selinfo.h */ 56#include <sys/signal.h> 57#include <sys/signalvar.h> 58#include <sys/socket.h> 59#include <sys/socketvar.h> 60#include <sys/stat.h> 61#include <sys/syscallsubr.h> 62#include <sys/sysctl.h> 63#include <sys/sysent.h> 64#include <sys/sysproto.h> 65#include <sys/systm.h> 66#include <sys/unistd.h> 67#include <sys/vnode.h> 68#include <sys/wait.h> 69 70#include <vm/vm.h> 71#include <vm/vm_kern.h> 72#include <vm/vm_param.h> 73#include <vm/pmap.h> 74#include <vm/vm_map.h> 75#include <vm/vm_object.h> 76#include <vm/vm_extern.h> 77 78#include <compat/freebsd32/freebsd32_util.h> 79#include <compat/freebsd32/freebsd32.h> 80#include <compat/freebsd32/freebsd32_proto.h> 81 82CTASSERT(sizeof(struct timeval32) == 8); 83CTASSERT(sizeof(struct timespec32) == 8); 84CTASSERT(sizeof(struct statfs32) == 256); 85CTASSERT(sizeof(struct rusage32) == 72); 86 87int 88freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 89{ 90 int error, status; 91 struct rusage32 ru32; 92 struct rusage ru, *rup; 93 94 if (uap->rusage != NULL) 95 rup = &ru; 96 else 97 rup = NULL; 98 error = kern_wait(td, uap->pid, &status, uap->options, rup); 99 if (error) 100 return (error); 101 if (uap->status != NULL) 102 error = copyout(&status, uap->status, sizeof(status)); 103 if (uap->rusage != NULL && error == 0) { 104 TV_CP(ru, ru32, ru_utime); 105 TV_CP(ru, ru32, ru_stime); 106 CP(ru, ru32, ru_maxrss); 107 CP(ru, ru32, ru_ixrss); 108 CP(ru, ru32, ru_idrss); 109 CP(ru, ru32, ru_isrss); 110 CP(ru, ru32, ru_minflt); 111 CP(ru, ru32, ru_majflt); 112 CP(ru, ru32, ru_nswap); 113 CP(ru, ru32, ru_inblock); 114 CP(ru, ru32, ru_oublock); 115 CP(ru, ru32, ru_msgsnd); 116 CP(ru, ru32, ru_msgrcv); 117 CP(ru, ru32, ru_nsignals); 118 CP(ru, ru32, ru_nvcsw); 119 CP(ru, ru32, ru_nivcsw); 120 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 121 } 122 return (error); 123} 124 125#ifdef COMPAT_FREEBSD4 126static void 127copy_statfs(struct statfs *in, struct statfs32 *out) 128{ 129 CP(*in, *out, f_bsize); 130 CP(*in, *out, f_iosize); 131 CP(*in, *out, f_blocks); 132 CP(*in, *out, f_bfree); 133 CP(*in, *out, f_bavail); 134 CP(*in, *out, f_files); 135 CP(*in, *out, f_ffree); 136 CP(*in, *out, f_fsid); 137 CP(*in, *out, f_owner); 138 CP(*in, *out, f_type); 139 CP(*in, *out, f_flags); 140 CP(*in, *out, f_flags); 141 CP(*in, *out, f_syncwrites); 142 CP(*in, *out, f_asyncwrites); 143 bcopy(in->f_fstypename, 144 out->f_fstypename, MFSNAMELEN); 145 bcopy(in->f_mntonname, 146 out->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 147 CP(*in, *out, f_syncreads); 148 CP(*in, *out, f_asyncreads); 149 bcopy(in->f_mntfromname, 150 out->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 151} 152#endif 153 154#ifdef COMPAT_FREEBSD4 155int 156freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 157{ 158 int error; 159 caddr_t sg; 160 struct statfs32 *sp32, stat32; 161 struct statfs *sp = NULL, stat; 162 int maxcount, count, i; 163 164 sp32 = uap->buf; 165 maxcount = uap->bufsize / sizeof(struct statfs32); 166 167 if (sp32) { 168 sg = stackgap_init(); 169 sp = stackgap_alloc(&sg, sizeof(struct statfs) * maxcount); 170 uap->buf = (struct statfs32 *)sp; 171 } 172 error = getfsstat(td, (struct getfsstat_args *) uap); 173 if (sp32 && !error) { 174 count = td->td_retval[0]; 175 for (i = 0; i < count; i++) { 176 error = copyin(&sp[i], &stat, sizeof(stat)); 177 if (error) 178 return (error); 179 copy_statfs(&stat, &stat32); 180 error = copyout(&stat32, &sp32[i], sizeof(stat32)); 181 if (error) 182 return (error); 183 } 184 } 185 return (error); 186} 187#endif 188 189struct sigaltstack32 { 190 u_int32_t ss_sp; 191 u_int32_t ss_size; 192 int ss_flags; 193}; 194 195CTASSERT(sizeof(struct sigaltstack32) == 12); 196 197int 198freebsd32_sigaltstack(struct thread *td, 199 struct freebsd32_sigaltstack_args *uap) 200{ 201 struct sigaltstack32 s32; 202 struct sigaltstack ss, oss, *ssp; 203 int error; 204 205 if (uap->ss != NULL) { 206 error = copyin(uap->ss, &s32, sizeof(s32)); 207 if (error) 208 return (error); 209 PTRIN_CP(s32, ss, ss_sp); 210 CP(s32, ss, ss_size); 211 CP(s32, ss, ss_flags); 212 ssp = &ss; 213 } else 214 ssp = NULL; 215 error = kern_sigaltstack(td, ssp, &oss); 216 if (error == 0 && uap->oss != NULL) { 217 PTROUT_CP(oss, s32, ss_sp); 218 CP(oss, s32, ss_size); 219 CP(oss, s32, ss_flags); 220 error = copyout(&s32, uap->oss, sizeof(s32)); 221 } 222 return (error); 223} 224 225/* 226 * Custom version of exec_copyin_args() so that we can translate 227 * the pointers. 228 */ 229static int 230freebsd32_exec_copyin_args(struct image_args *args, char *fname, 231 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 232{ 233 char *argp, *envp; 234 u_int32_t *p32, arg; 235 size_t length; 236 int error; 237 238 bzero(args, sizeof(*args)); 239 if (argv == NULL) 240 return (EFAULT); 241 242 /* 243 * Allocate temporary demand zeroed space for argument and 244 * environment strings 245 */ 246 args->buf = (char *) kmem_alloc_wait(exec_map, PATH_MAX + ARG_MAX); 247 if (args->buf == NULL) 248 return (ENOMEM); 249 args->begin_argv = args->buf; 250 args->endp = args->begin_argv; 251 args->stringspace = ARG_MAX; 252 253 args->fname = args->buf + ARG_MAX; 254 255 /* 256 * Copy the file name. 257 */ 258 error = (segflg == UIO_SYSSPACE) ? 259 copystr(fname, args->fname, PATH_MAX, &length) : 260 copyinstr(fname, args->fname, PATH_MAX, &length); 261 if (error != 0) 262 return (error); 263 264 /* 265 * extract arguments first 266 */ 267 p32 = argv; 268 for (;;) { 269 error = copyin(p32++, &arg, sizeof(arg)); 270 if (error) 271 return (error); 272 if (arg == 0) 273 break; 274 argp = PTRIN(arg); 275 error = copyinstr(argp, args->endp, args->stringspace, &length); 276 if (error) { 277 if (error == ENAMETOOLONG) 278 return (E2BIG); 279 else 280 return (error); 281 } 282 args->stringspace -= length; 283 args->endp += length; 284 args->argc++; 285 } 286 287 args->begin_envv = args->endp; 288 289 /* 290 * extract environment strings 291 */ 292 if (envv) { 293 p32 = envv; 294 for (;;) { 295 error = copyin(p32++, &arg, sizeof(arg)); 296 if (error) 297 return (error); 298 if (arg == 0) 299 break; 300 envp = PTRIN(arg); 301 error = copyinstr(envp, args->endp, args->stringspace, 302 &length); 303 if (error) { 304 if (error == ENAMETOOLONG) 305 return (E2BIG); 306 else 307 return (error); 308 } 309 args->stringspace -= length; 310 args->endp += length; 311 args->envc++; 312 } 313 } 314 315 return (0); 316} 317 318int 319freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 320{ 321 struct image_args eargs; 322 int error; 323 324 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 325 uap->argv, uap->envv); 326 if (error == 0) 327 error = kern_execve(td, &eargs, NULL); 328 exec_free_args(&eargs); 329 return (error); 330} 331 332#ifdef __ia64__ 333static int 334freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 335 int prot, int fd, off_t pos) 336{ 337 vm_map_t map; 338 vm_map_entry_t entry; 339 int rv; 340 341 map = &td->td_proc->p_vmspace->vm_map; 342 if (fd != -1) 343 prot |= VM_PROT_WRITE; 344 345 if (vm_map_lookup_entry(map, start, &entry)) { 346 if ((entry->protection & prot) != prot) { 347 rv = vm_map_protect(map, 348 trunc_page(start), 349 round_page(end), 350 entry->protection | prot, 351 FALSE); 352 if (rv != KERN_SUCCESS) 353 return (EINVAL); 354 } 355 } else { 356 vm_offset_t addr = trunc_page(start); 357 rv = vm_map_find(map, 0, 0, 358 &addr, PAGE_SIZE, FALSE, prot, 359 VM_PROT_ALL, 0); 360 if (rv != KERN_SUCCESS) 361 return (EINVAL); 362 } 363 364 if (fd != -1) { 365 struct pread_args r; 366 r.fd = fd; 367 r.buf = (void *) start; 368 r.nbyte = end - start; 369 r.offset = pos; 370 return (pread(td, &r)); 371 } else { 372 while (start < end) { 373 subyte((void *) start, 0); 374 start++; 375 } 376 return (0); 377 } 378} 379#endif 380 381int 382freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 383{ 384 struct mmap_args ap; 385 vm_offset_t addr = (vm_offset_t) uap->addr; 386 vm_size_t len = uap->len; 387 int prot = uap->prot; 388 int flags = uap->flags; 389 int fd = uap->fd; 390 off_t pos = (uap->poslo 391 | ((off_t)uap->poshi << 32)); 392#ifdef __ia64__ 393 vm_size_t pageoff; 394 int error; 395 396 /* 397 * Attempt to handle page size hassles. 398 */ 399 pageoff = (pos & PAGE_MASK); 400 if (flags & MAP_FIXED) { 401 vm_offset_t start, end; 402 start = addr; 403 end = addr + len; 404 405 if (start != trunc_page(start)) { 406 error = freebsd32_mmap_partial(td, start, 407 round_page(start), prot, 408 fd, pos); 409 if (fd != -1) 410 pos += round_page(start) - start; 411 start = round_page(start); 412 } 413 if (end != round_page(end)) { 414 vm_offset_t t = trunc_page(end); 415 error = freebsd32_mmap_partial(td, t, end, 416 prot, fd, 417 pos + t - start); 418 end = trunc_page(end); 419 } 420 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 421 /* 422 * We can't map this region at all. The specified 423 * address doesn't have the same alignment as the file 424 * position. Fake the mapping by simply reading the 425 * entire region into memory. First we need to make 426 * sure the region exists. 427 */ 428 vm_map_t map; 429 struct pread_args r; 430 int rv; 431 432 prot |= VM_PROT_WRITE; 433 map = &td->td_proc->p_vmspace->vm_map; 434 rv = vm_map_remove(map, start, end); 435 if (rv != KERN_SUCCESS) 436 return (EINVAL); 437 rv = vm_map_find(map, 0, 0, 438 &start, end - start, FALSE, 439 prot, VM_PROT_ALL, 0); 440 if (rv != KERN_SUCCESS) 441 return (EINVAL); 442 r.fd = fd; 443 r.buf = (void *) start; 444 r.nbyte = end - start; 445 r.offset = pos; 446 error = pread(td, &r); 447 if (error) 448 return (error); 449 450 td->td_retval[0] = addr; 451 return (0); 452 } 453 if (end == start) { 454 /* 455 * After dealing with the ragged ends, there 456 * might be none left. 457 */ 458 td->td_retval[0] = addr; 459 return (0); 460 } 461 addr = start; 462 len = end - start; 463 } 464#endif 465 466 ap.addr = (void *) addr; 467 ap.len = len; 468 ap.prot = prot; 469 ap.flags = flags; 470 ap.fd = fd; 471 ap.pos = pos; 472 473 return (mmap(td, &ap)); 474} 475 476struct itimerval32 { 477 struct timeval32 it_interval; 478 struct timeval32 it_value; 479}; 480 481CTASSERT(sizeof(struct itimerval32) == 16); 482 483int 484freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 485{ 486 struct itimerval itv, oitv, *itvp; 487 struct itimerval32 i32; 488 int error; 489 490 if (uap->itv != NULL) { 491 error = copyin(uap->itv, &i32, sizeof(i32)); 492 if (error) 493 return (error); 494 TV_CP(i32, itv, it_interval); 495 TV_CP(i32, itv, it_value); 496 itvp = &itv; 497 } else 498 itvp = NULL; 499 error = kern_setitimer(td, uap->which, itvp, &oitv); 500 if (error || uap->oitv == NULL) 501 return (error); 502 TV_CP(oitv, i32, it_interval); 503 TV_CP(oitv, i32, it_value); 504 return (copyout(&i32, uap->oitv, sizeof(i32))); 505} 506 507int 508freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 509{ 510 struct itimerval itv; 511 struct itimerval32 i32; 512 int error; 513 514 error = kern_getitimer(td, uap->which, &itv); 515 if (error || uap->itv == NULL) 516 return (error); 517 TV_CP(itv, i32, it_interval); 518 TV_CP(itv, i32, it_value); 519 return (copyout(&i32, uap->itv, sizeof(i32))); 520} 521 522int 523freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 524{ 525 struct timeval32 tv32; 526 struct timeval tv, *tvp; 527 int error; 528 529 if (uap->tv != NULL) { 530 error = copyin(uap->tv, &tv32, sizeof(tv32)); 531 if (error) 532 return (error); 533 CP(tv32, tv, tv_sec); 534 CP(tv32, tv, tv_usec); 535 tvp = &tv; 536 } else 537 tvp = NULL; 538 /* 539 * XXX big-endian needs to convert the fd_sets too. 540 * XXX Do pointers need PTRIN()? 541 */ 542 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp)); 543} 544 545struct kevent32 { 546 u_int32_t ident; /* identifier for this event */ 547 short filter; /* filter for event */ 548 u_short flags; 549 u_int fflags; 550 int32_t data; 551 u_int32_t udata; /* opaque user data identifier */ 552}; 553 554CTASSERT(sizeof(struct kevent32) == 20); 555 556int 557freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 558{ 559 struct timespec32 ts32; 560 struct timespec ts, *tsp; 561 struct kevent *ks; 562 struct kevent32 ks32; 563 struct kevent *changes, *events; 564 int error, i; 565 566 567 if (uap->timeout) { 568 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 569 if (error) 570 return (error); 571 CP(ts32, ts, tv_sec); 572 CP(ts32, ts, tv_nsec); 573 tsp = &ts; 574 } else 575 tsp = NULL; 576 if (uap->changelist && uap->nchanges > 0) { 577 changes = malloc(sizeof(struct kevent) * uap->nchanges, M_TEMP, 578 M_WAITOK); 579 for (i = 0; i < uap->nchanges; i++) { 580 error = copyin(&uap->changelist[i], &ks32, 581 sizeof(ks32)); 582 if (error) { 583 free(changes, M_TEMP); 584 return (error); 585 } 586 ks = &changes[i]; 587 CP(ks32, *ks, ident); 588 CP(ks32, *ks, filter); 589 CP(ks32, *ks, flags); 590 CP(ks32, *ks, fflags); 591 CP(ks32, *ks, data); 592 PTRIN_CP(ks32, *ks, udata); 593 } 594 } else 595 changes = NULL; 596 if (uap->eventlist && uap->nevents > 0) 597 events = malloc(sizeof(struct kevent) * uap->nevents, M_TEMP, 598 M_WAITOK); 599 else 600 events = NULL; 601 error = kern_kevent(td, uap->fd, changes, uap->nchanges, UIO_SYSSPACE, 602 events, uap->nevents, UIO_SYSSPACE, tsp); 603 free(changes, M_TEMP); 604 if (uap->eventlist && events && td->td_retval[0] > 0) { 605 for (i = 0; i < td->td_retval[0]; i++) { 606 ks = &events[i]; 607 CP(*ks, ks32, ident); 608 CP(*ks, ks32, filter); 609 CP(*ks, ks32, flags); 610 CP(*ks, ks32, fflags); 611 CP(*ks, ks32, data); 612 PTROUT_CP(*ks, ks32, udata); 613 error = copyout(&ks32, &uap->eventlist[i], 614 sizeof(ks32)); 615 if (error) 616 break; 617 } 618 } 619 if (events) 620 free(events, M_TEMP); 621 return (error); 622} 623 624int 625freebsd32_gettimeofday(struct thread *td, 626 struct freebsd32_gettimeofday_args *uap) 627{ 628 struct timeval atv; 629 struct timeval32 atv32; 630 struct timezone rtz; 631 int error = 0; 632 633 if (uap->tp) { 634 microtime(&atv); 635 CP(atv, atv32, tv_sec); 636 CP(atv, atv32, tv_usec); 637 error = copyout(&atv32, uap->tp, sizeof (atv32)); 638 } 639 if (error == 0 && uap->tzp != NULL) { 640 rtz.tz_minuteswest = tz_minuteswest; 641 rtz.tz_dsttime = tz_dsttime; 642 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 643 } 644 return (error); 645} 646 647int 648freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 649{ 650 struct rusage32 s32; 651 struct rusage s; 652 int error; 653 654 error = kern_getrusage(td, uap->who, &s); 655 if (error) 656 return (error); 657 if (uap->rusage != NULL) { 658 TV_CP(s, s32, ru_utime); 659 TV_CP(s, s32, ru_stime); 660 CP(s, s32, ru_maxrss); 661 CP(s, s32, ru_ixrss); 662 CP(s, s32, ru_idrss); 663 CP(s, s32, ru_isrss); 664 CP(s, s32, ru_minflt); 665 CP(s, s32, ru_majflt); 666 CP(s, s32, ru_nswap); 667 CP(s, s32, ru_inblock); 668 CP(s, s32, ru_oublock); 669 CP(s, s32, ru_msgsnd); 670 CP(s, s32, ru_msgrcv); 671 CP(s, s32, ru_nsignals); 672 CP(s, s32, ru_nvcsw); 673 CP(s, s32, ru_nivcsw); 674 error = copyout(&s32, uap->rusage, sizeof(s32)); 675 } 676 return (error); 677} 678 679struct iovec32 { 680 u_int32_t iov_base; 681 int iov_len; 682}; 683#define STACKGAPLEN 400 684 685CTASSERT(sizeof(struct iovec32) == 8); 686 687int 688freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 689{ 690 int error, osize, nsize, i; 691 caddr_t sg; 692 struct readv_args /* { 693 syscallarg(int) fd; 694 syscallarg(struct iovec *) iovp; 695 syscallarg(u_int) iovcnt; 696 } */ a; 697 struct iovec32 *oio; 698 struct iovec *nio; 699 700 sg = stackgap_init(); 701 702 if (uap->iovcnt > (STACKGAPLEN / sizeof (struct iovec))) 703 return (EINVAL); 704 705 osize = uap->iovcnt * sizeof (struct iovec32); 706 nsize = uap->iovcnt * sizeof (struct iovec); 707 708 oio = malloc(osize, M_TEMP, M_WAITOK); 709 nio = malloc(nsize, M_TEMP, M_WAITOK); 710 711 error = 0; 712 if ((error = copyin(uap->iovp, oio, osize))) 713 goto punt; 714 for (i = 0; i < uap->iovcnt; i++) { 715 nio[i].iov_base = PTRIN(oio[i].iov_base); 716 nio[i].iov_len = oio[i].iov_len; 717 } 718 719 a.fd = uap->fd; 720 a.iovp = stackgap_alloc(&sg, nsize); 721 a.iovcnt = uap->iovcnt; 722 723 if ((error = copyout(nio, (caddr_t)a.iovp, nsize))) 724 goto punt; 725 error = readv(td, &a); 726 727punt: 728 free(oio, M_TEMP); 729 free(nio, M_TEMP); 730 return (error); 731} 732 733int 734freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 735{ 736 int error, i, nsize, osize; 737 caddr_t sg; 738 struct writev_args /* { 739 syscallarg(int) fd; 740 syscallarg(struct iovec *) iovp; 741 syscallarg(u_int) iovcnt; 742 } */ a; 743 struct iovec32 *oio; 744 struct iovec *nio; 745 746 sg = stackgap_init(); 747 748 if (uap->iovcnt > (STACKGAPLEN / sizeof (struct iovec))) 749 return (EINVAL); 750 751 osize = uap->iovcnt * sizeof (struct iovec32); 752 nsize = uap->iovcnt * sizeof (struct iovec); 753 754 oio = malloc(osize, M_TEMP, M_WAITOK); 755 nio = malloc(nsize, M_TEMP, M_WAITOK); 756 757 error = 0; 758 if ((error = copyin(uap->iovp, oio, osize))) 759 goto punt; 760 for (i = 0; i < uap->iovcnt; i++) { 761 nio[i].iov_base = PTRIN(oio[i].iov_base); 762 nio[i].iov_len = oio[i].iov_len; 763 } 764 765 a.fd = uap->fd; 766 a.iovp = stackgap_alloc(&sg, nsize); 767 a.iovcnt = uap->iovcnt; 768 769 if ((error = copyout(nio, (caddr_t)a.iovp, nsize))) 770 goto punt; 771 error = writev(td, &a); 772 773punt: 774 free(oio, M_TEMP); 775 free(nio, M_TEMP); 776 return (error); 777} 778 779int 780freebsd32_settimeofday(struct thread *td, 781 struct freebsd32_settimeofday_args *uap) 782{ 783 int error; 784 caddr_t sg; 785 struct timeval32 *p32, s32; 786 struct timeval *p = NULL, s; 787 788 p32 = uap->tv; 789 if (p32) { 790 sg = stackgap_init(); 791 p = stackgap_alloc(&sg, sizeof(struct timeval)); 792 uap->tv = (struct timeval32 *)p; 793 error = copyin(p32, &s32, sizeof(s32)); 794 if (error) 795 return (error); 796 CP(s32, s, tv_sec); 797 CP(s32, s, tv_usec); 798 error = copyout(&s, p, sizeof(s)); 799 if (error) 800 return (error); 801 } 802 return (settimeofday(td, (struct settimeofday_args *) uap)); 803} 804 805int 806freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 807{ 808 struct timeval32 s32[2]; 809 struct timeval s[2], *sp; 810 int error; 811 812 if (uap->tptr != NULL) { 813 error = copyin(uap->tptr, s32, sizeof(s32)); 814 if (error) 815 return (error); 816 CP(s32[0], s[0], tv_sec); 817 CP(s32[0], s[0], tv_usec); 818 CP(s32[1], s[1], tv_sec); 819 CP(s32[1], s[1], tv_usec); 820 sp = s; 821 } else 822 sp = NULL; 823 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 824} 825 826int 827freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 828{ 829 int error; 830 caddr_t sg; 831 struct timeval32 *p32, *op32, s32; 832 struct timeval *p = NULL, *op = NULL, s; 833 834 p32 = uap->delta; 835 if (p32) { 836 sg = stackgap_init(); 837 p = stackgap_alloc(&sg, sizeof(struct timeval)); 838 uap->delta = (struct timeval32 *)p; 839 error = copyin(p32, &s32, sizeof(s32)); 840 if (error) 841 return (error); 842 CP(s32, s, tv_sec); 843 CP(s32, s, tv_usec); 844 error = copyout(&s, p, sizeof(s)); 845 if (error) 846 return (error); 847 } 848 op32 = uap->olddelta; 849 if (op32) { 850 sg = stackgap_init(); 851 op = stackgap_alloc(&sg, sizeof(struct timeval)); 852 uap->olddelta = (struct timeval32 *)op; 853 } 854 error = adjtime(td, (struct adjtime_args *) uap); 855 if (error) 856 return error; 857 if (op32) { 858 error = copyin(op, &s, sizeof(s)); 859 if (error) 860 return (error); 861 CP(s, s32, tv_sec); 862 CP(s, s32, tv_usec); 863 error = copyout(&s32, op32, sizeof(s32)); 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 caddr_t sg; 1264 struct yyy32 *p32, s32; 1265 struct yyy *p = NULL, s; 1266 1267 p32 = uap->zzz; 1268 if (p32) { 1269 sg = stackgap_init(); 1270 p = stackgap_alloc(&sg, sizeof(struct yyy)); 1271 uap->zzz = (struct yyy32 *)p; 1272 error = copyin(p32, &s32, sizeof(s32)); 1273 if (error) 1274 return (error); 1275 /* translate in */ 1276 error = copyout(&s, p, sizeof(s)); 1277 if (error) 1278 return (error); 1279 } 1280 error = xxx(td, (struct xxx_args *) uap); 1281 if (error) 1282 return (error); 1283 if (p32) { 1284 error = copyin(p, &s, sizeof(s)); 1285 if (error) 1286 return (error); 1287 /* translate out */ 1288 error = copyout(&s32, p32, sizeof(s32)); 1289 } 1290 return (error); 1291} 1292 1293#endif 1294