freebsd32_misc.c revision 123744
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 123744 2003-12-23 02:48:11Z peter $"); 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/imgact.h> 39#include <sys/kernel.h> 40#include <sys/lock.h> 41#include <sys/malloc.h> 42#include <sys/file.h> /* Must come after sys/malloc.h */ 43#include <sys/mman.h> 44#include <sys/module.h> 45#include <sys/mount.h> 46#include <sys/mutex.h> 47#include <sys/namei.h> 48#include <sys/param.h> 49#include <sys/proc.h> 50#include <sys/reboot.h> 51#include <sys/resource.h> 52#include <sys/resourcevar.h> 53#include <sys/selinfo.h> 54#include <sys/pipe.h> /* Must come after sys/selinfo.h */ 55#include <sys/signal.h> 56#include <sys/signalvar.h> 57#include <sys/socket.h> 58#include <sys/socketvar.h> 59#include <sys/stat.h> 60#include <sys/syscallsubr.h> 61#include <sys/sysctl.h> 62#include <sys/sysent.h> 63#include <sys/sysproto.h> 64#include <sys/systm.h> 65#include <sys/unistd.h> 66#include <sys/user.h> 67#include <sys/utsname.h> 68#include <sys/vnode.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; 91 caddr_t sg; 92 struct rusage32 *rusage32, ru32; 93 struct rusage *rusage = NULL, ru; 94 95 rusage32 = uap->rusage; 96 if (rusage32) { 97 sg = stackgap_init(); 98 rusage = stackgap_alloc(&sg, sizeof(struct rusage)); 99 uap->rusage = (struct rusage32 *)rusage; 100 } 101 error = wait4(td, (struct wait_args *)uap); 102 if (error) 103 return (error); 104 if (rusage32 && (error = copyin(rusage, &ru, sizeof(ru)) == 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, rusage32, sizeof(ru32)); 122 } 123 return (error); 124} 125 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, MNAMELEN); 147 CP(*in, *out, f_syncreads); 148 CP(*in, *out, f_asyncreads); 149 bcopy(in->f_mntfromname, 150 out->f_mntfromname, MNAMELEN); 151} 152 153int 154freebsd32_getfsstat(struct thread *td, struct freebsd32_getfsstat_args *uap) 155{ 156 int error; 157 caddr_t sg; 158 struct statfs32 *sp32, stat32; 159 struct statfs *sp = NULL, stat; 160 int maxcount, count, i; 161 162 sp32 = uap->buf; 163 maxcount = uap->bufsize / sizeof(struct statfs32); 164 165 if (sp32) { 166 sg = stackgap_init(); 167 sp = stackgap_alloc(&sg, sizeof(struct statfs) * maxcount); 168 uap->buf = (struct statfs32 *)sp; 169 } 170 error = getfsstat(td, (struct getfsstat_args *) uap); 171 if (sp32 && !error) { 172 count = td->td_retval[0]; 173 for (i = 0; i < count; i++) { 174 error = copyin(&sp[i], &stat, sizeof(stat)); 175 if (error) 176 return (error); 177 copy_statfs(&stat, &stat32); 178 error = copyout(&stat32, &sp32[i], sizeof(stat32)); 179 if (error) 180 return (error); 181 } 182 } 183 return (error); 184} 185 186struct sigaltstack32 { 187 u_int32_t ss_sp; 188 u_int32_t ss_size; 189 int ss_flags; 190}; 191 192CTASSERT(sizeof(struct sigaltstack32) == 12); 193 194int 195freebsd32_sigaltstack(struct thread *td, 196 struct freebsd32_sigaltstack_args *uap) 197{ 198 struct sigaltstack32 s32; 199 struct sigaltstack ss, oss, *ssp; 200 int error; 201 202 if (uap->ss != NULL) { 203 error = copyin(uap->ss, &s32, sizeof(s32)); 204 if (error) 205 return (error); 206 PTRIN_CP(s32, ss, ss_sp); 207 CP(s32, ss, ss_size); 208 CP(s32, ss, ss_flags); 209 ssp = &ss; 210 } else 211 ssp = NULL; 212 error = kern_sigaltstack(td, ssp, &oss); 213 if (error == 0 && uap->oss != NULL) { 214 PTROUT_CP(oss, s32, ss_sp); 215 CP(oss, s32, ss_size); 216 CP(oss, s32, ss_flags); 217 error = copyout(&s32, uap->oss, sizeof(s32)); 218 } 219 return (error); 220} 221 222int 223freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 224{ 225 int error; 226 caddr_t sg; 227 struct execve_args ap; 228 u_int32_t *p32, arg; 229 char **p, *p64; 230 int count; 231 232 sg = stackgap_init(); 233 ap.fname = uap->fname; 234 235 if (uap->argv) { 236 count = 0; 237 p32 = uap->argv; 238 do { 239 error = copyin(p32++, &arg, sizeof(arg)); 240 if (error) 241 return error; 242 count++; 243 } while (arg != 0); 244 p = stackgap_alloc(&sg, count * sizeof(char *)); 245 ap.argv = p; 246 p32 = uap->argv; 247 do { 248 error = copyin(p32++, &arg, sizeof(arg)); 249 if (error) 250 return error; 251 p64 = PTRIN(arg); 252 error = copyout(&p64, p++, sizeof(p64)); 253 if (error) 254 return error; 255 } while (arg != 0); 256 } 257 if (uap->envv) { 258 count = 0; 259 p32 = uap->envv; 260 do { 261 error = copyin(p32++, &arg, sizeof(arg)); 262 if (error) 263 return error; 264 count++; 265 } while (arg != 0); 266 p = stackgap_alloc(&sg, count * sizeof(char *)); 267 ap.envv = p; 268 p32 = uap->envv; 269 do { 270 error = copyin(p32++, &arg, sizeof(arg)); 271 if (error) 272 return error; 273 p64 = PTRIN(arg); 274 error = copyout(&p64, p++, sizeof(p64)); 275 if (error) 276 return error; 277 } while (arg != 0); 278 } 279 280 return execve(td, &ap); 281} 282 283#ifdef __ia64__ 284static int 285freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 286 int prot, int fd, off_t pos) 287{ 288 vm_map_t map; 289 vm_map_entry_t entry; 290 int rv; 291 292 map = &td->td_proc->p_vmspace->vm_map; 293 if (fd != -1) 294 prot |= VM_PROT_WRITE; 295 296 if (vm_map_lookup_entry(map, start, &entry)) { 297 if ((entry->protection & prot) != prot) { 298 rv = vm_map_protect(map, 299 trunc_page(start), 300 round_page(end), 301 entry->protection | prot, 302 FALSE); 303 if (rv != KERN_SUCCESS) 304 return (EINVAL); 305 } 306 } else { 307 vm_offset_t addr = trunc_page(start); 308 rv = vm_map_find(map, 0, 0, 309 &addr, PAGE_SIZE, FALSE, prot, 310 VM_PROT_ALL, 0); 311 if (rv != KERN_SUCCESS) 312 return (EINVAL); 313 } 314 315 if (fd != -1) { 316 struct pread_args r; 317 r.fd = fd; 318 r.buf = (void *) start; 319 r.nbyte = end - start; 320 r.offset = pos; 321 return (pread(td, &r)); 322 } else { 323 while (start < end) { 324 subyte((void *) start, 0); 325 start++; 326 } 327 return (0); 328 } 329} 330#endif 331 332int 333freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 334{ 335 struct mmap_args ap; 336 vm_offset_t addr = (vm_offset_t) uap->addr; 337 vm_size_t len = uap->len; 338 int prot = uap->prot; 339 int flags = uap->flags; 340 int fd = uap->fd; 341 off_t pos = (uap->poslo 342 | ((off_t)uap->poshi << 32)); 343#ifdef __ia64__ 344 vm_size_t pageoff; 345 int error; 346 347 /* 348 * Attempt to handle page size hassles. 349 */ 350 pageoff = (pos & PAGE_MASK); 351 if (flags & MAP_FIXED) { 352 vm_offset_t start, end; 353 start = addr; 354 end = addr + len; 355 356 if (start != trunc_page(start)) { 357 error = freebsd32_mmap_partial(td, start, 358 round_page(start), prot, 359 fd, pos); 360 if (fd != -1) 361 pos += round_page(start) - start; 362 start = round_page(start); 363 } 364 if (end != round_page(end)) { 365 vm_offset_t t = trunc_page(end); 366 error = freebsd32_mmap_partial(td, t, end, 367 prot, fd, 368 pos + t - start); 369 end = trunc_page(end); 370 } 371 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 372 /* 373 * We can't map this region at all. The specified 374 * address doesn't have the same alignment as the file 375 * position. Fake the mapping by simply reading the 376 * entire region into memory. First we need to make 377 * sure the region exists. 378 */ 379 vm_map_t map; 380 struct pread_args r; 381 int rv; 382 383 prot |= VM_PROT_WRITE; 384 map = &td->td_proc->p_vmspace->vm_map; 385 rv = vm_map_remove(map, start, end); 386 if (rv != KERN_SUCCESS) 387 return (EINVAL); 388 rv = vm_map_find(map, 0, 0, 389 &start, end - start, FALSE, 390 prot, VM_PROT_ALL, 0); 391 if (rv != KERN_SUCCESS) 392 return (EINVAL); 393 r.fd = fd; 394 r.buf = (void *) start; 395 r.nbyte = end - start; 396 r.offset = pos; 397 error = pread(td, &r); 398 if (error) 399 return (error); 400 401 td->td_retval[0] = addr; 402 return (0); 403 } 404 if (end == start) { 405 /* 406 * After dealing with the ragged ends, there 407 * might be none left. 408 */ 409 td->td_retval[0] = addr; 410 return (0); 411 } 412 addr = start; 413 len = end - start; 414 } 415#endif 416 417 ap.addr = (void *) addr; 418 ap.len = len; 419 ap.prot = prot; 420 ap.flags = flags; 421 ap.fd = fd; 422 ap.pos = pos; 423 424 return (mmap(td, &ap)); 425} 426 427struct itimerval32 { 428 struct timeval32 it_interval; 429 struct timeval32 it_value; 430}; 431 432CTASSERT(sizeof(struct itimerval32) == 16); 433 434int 435freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 436{ 437 int error; 438 caddr_t sg; 439 struct itimerval32 *p32, *op32, s32; 440 struct itimerval *p = NULL, *op = NULL, s; 441 442 p32 = uap->itv; 443 if (p32) { 444 sg = stackgap_init(); 445 p = stackgap_alloc(&sg, sizeof(struct itimerval)); 446 uap->itv = (struct itimerval32 *)p; 447 error = copyin(p32, &s32, sizeof(s32)); 448 if (error) 449 return (error); 450 TV_CP(s32, s, it_interval); 451 TV_CP(s32, s, it_value); 452 error = copyout(&s, p, sizeof(s)); 453 if (error) 454 return (error); 455 } 456 op32 = uap->oitv; 457 if (op32) { 458 sg = stackgap_init(); 459 op = stackgap_alloc(&sg, sizeof(struct itimerval)); 460 uap->oitv = (struct itimerval32 *)op; 461 } 462 error = setitimer(td, (struct setitimer_args *) uap); 463 if (error) 464 return (error); 465 if (op32) { 466 error = copyin(op, &s, sizeof(s)); 467 if (error) 468 return (error); 469 TV_CP(s, s32, it_interval); 470 TV_CP(s, s32, it_value); 471 error = copyout(&s32, op32, sizeof(s32)); 472 } 473 return (error); 474} 475 476int 477freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 478{ 479 int error; 480 caddr_t sg; 481 struct timeval32 *p32, s32; 482 struct timeval *p = NULL, s; 483 484 p32 = uap->tv; 485 if (p32) { 486 sg = stackgap_init(); 487 p = stackgap_alloc(&sg, sizeof(struct timeval)); 488 uap->tv = (struct timeval32 *)p; 489 error = copyin(p32, &s32, sizeof(s32)); 490 if (error) 491 return (error); 492 CP(s32, s, tv_sec); 493 CP(s32, s, tv_usec); 494 error = copyout(&s, p, sizeof(s)); 495 if (error) 496 return (error); 497 } 498 /* 499 * XXX big-endian needs to convert the fd_sets too. 500 */ 501 return (select(td, (struct select_args *) uap)); 502} 503 504struct kevent32 { 505 u_int32_t ident; /* identifier for this event */ 506 short filter; /* filter for event */ 507 u_short flags; 508 u_int fflags; 509 int32_t data; 510 u_int32_t udata; /* opaque user data identifier */ 511}; 512 513CTASSERT(sizeof(struct kevent32) == 20); 514 515int 516freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 517{ 518 int error; 519 caddr_t sg; 520 struct timespec32 ts32; 521 struct timespec ts; 522 struct kevent32 ks32; 523 struct kevent *ks; 524 struct kevent_args a; 525 int i; 526 527 sg = stackgap_init(); 528 529 a.fd = uap->fd; 530 a.changelist = uap->changelist; 531 a.nchanges = uap->nchanges; 532 a.eventlist = uap->eventlist; 533 a.nevents = uap->nevents; 534 a.timeout = NULL; 535 536 if (uap->timeout) { 537 a.timeout = stackgap_alloc(&sg, sizeof(struct timespec)); 538 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 539 if (error) 540 return (error); 541 CP(ts32, ts, tv_sec); 542 CP(ts32, ts, tv_nsec); 543 error = copyout(&ts, (void *)(uintptr_t)a.timeout, sizeof(ts)); 544 if (error) 545 return (error); 546 } 547 if (uap->changelist) { 548 a.changelist = (struct kevent *)stackgap_alloc(&sg, 549 uap->nchanges * sizeof(struct kevent)); 550 for (i = 0; i < uap->nchanges; i++) { 551 error = copyin(&uap->changelist[i], &ks32, 552 sizeof(ks32)); 553 if (error) 554 return (error); 555 ks = (struct kevent *)(uintptr_t)&a.changelist[i]; 556 CP(ks32, *ks, ident); 557 CP(ks32, *ks, filter); 558 CP(ks32, *ks, flags); 559 CP(ks32, *ks, fflags); 560 CP(ks32, *ks, data); 561 PTRIN_CP(ks32, *ks, udata); 562 } 563 } 564 if (uap->eventlist) { 565 a.eventlist = stackgap_alloc(&sg, 566 uap->nevents * sizeof(struct kevent)); 567 } 568 error = kevent(td, &a); 569 if (uap->eventlist && error > 0) { 570 for (i = 0; i < error; i++) { 571 ks = &a.eventlist[i]; 572 CP(*ks, ks32, ident); 573 CP(*ks, ks32, filter); 574 CP(*ks, ks32, flags); 575 CP(*ks, ks32, fflags); 576 CP(*ks, ks32, data); 577 PTROUT_CP(*ks, ks32, udata); 578 error = copyout(&ks32, &uap->eventlist[i], 579 sizeof(ks32)); 580 if (error) 581 return (error); 582 } 583 } 584 return error; 585} 586 587int 588freebsd32_gettimeofday(struct thread *td, 589 struct freebsd32_gettimeofday_args *uap) 590{ 591 struct timeval atv; 592 struct timeval32 atv32; 593 struct timezone rtz; 594 int error = 0; 595 596 if (uap->tp) { 597 microtime(&atv); 598 CP(atv, atv32, tv_sec); 599 CP(atv, atv32, tv_usec); 600 error = copyout(&atv32, uap->tp, sizeof (atv32)); 601 } 602 if (error == 0 && uap->tzp != NULL) { 603 rtz.tz_minuteswest = tz_minuteswest; 604 rtz.tz_dsttime = tz_dsttime; 605 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 606 } 607 return (error); 608} 609 610int 611freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 612{ 613 int error; 614 caddr_t sg; 615 struct rusage32 *p32, s32; 616 struct rusage *p = NULL, s; 617 618 p32 = uap->rusage; 619 if (p32) { 620 sg = stackgap_init(); 621 p = stackgap_alloc(&sg, sizeof(struct rusage)); 622 uap->rusage = (struct rusage32 *)p; 623 } 624 error = getrusage(td, (struct getrusage_args *) uap); 625 if (error) 626 return (error); 627 if (p32) { 628 error = copyin(p, &s, sizeof(s)); 629 if (error) 630 return (error); 631 TV_CP(s, s32, ru_utime); 632 TV_CP(s, s32, ru_stime); 633 CP(s, s32, ru_maxrss); 634 CP(s, s32, ru_ixrss); 635 CP(s, s32, ru_idrss); 636 CP(s, s32, ru_isrss); 637 CP(s, s32, ru_minflt); 638 CP(s, s32, ru_majflt); 639 CP(s, s32, ru_nswap); 640 CP(s, s32, ru_inblock); 641 CP(s, s32, ru_oublock); 642 CP(s, s32, ru_msgsnd); 643 CP(s, s32, ru_msgrcv); 644 CP(s, s32, ru_nsignals); 645 CP(s, s32, ru_nvcsw); 646 CP(s, s32, ru_nivcsw); 647 error = copyout(&s32, p32, sizeof(s32)); 648 } 649 return (error); 650} 651 652struct iovec32 { 653 u_int32_t iov_base; 654 int iov_len; 655}; 656#define STACKGAPLEN 400 657 658CTASSERT(sizeof(struct iovec32) == 8); 659 660int 661freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 662{ 663 int error, osize, nsize, i; 664 caddr_t sg; 665 struct readv_args /* { 666 syscallarg(int) fd; 667 syscallarg(struct iovec *) iovp; 668 syscallarg(u_int) iovcnt; 669 } */ a; 670 struct iovec32 *oio; 671 struct iovec *nio; 672 673 sg = stackgap_init(); 674 675 if (uap->iovcnt > (STACKGAPLEN / sizeof (struct iovec))) 676 return (EINVAL); 677 678 osize = uap->iovcnt * sizeof (struct iovec32); 679 nsize = uap->iovcnt * sizeof (struct iovec); 680 681 oio = malloc(osize, M_TEMP, M_WAITOK); 682 nio = malloc(nsize, M_TEMP, M_WAITOK); 683 684 error = 0; 685 if ((error = copyin(uap->iovp, oio, osize))) 686 goto punt; 687 for (i = 0; i < uap->iovcnt; i++) { 688 nio[i].iov_base = PTRIN(oio[i].iov_base); 689 nio[i].iov_len = oio[i].iov_len; 690 } 691 692 a.fd = uap->fd; 693 a.iovp = stackgap_alloc(&sg, nsize); 694 a.iovcnt = uap->iovcnt; 695 696 if ((error = copyout(nio, (caddr_t)a.iovp, nsize))) 697 goto punt; 698 error = readv(td, &a); 699 700punt: 701 free(oio, M_TEMP); 702 free(nio, M_TEMP); 703 return (error); 704} 705 706int 707freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 708{ 709 int error, i, nsize, osize; 710 caddr_t sg; 711 struct writev_args /* { 712 syscallarg(int) fd; 713 syscallarg(struct iovec *) iovp; 714 syscallarg(u_int) iovcnt; 715 } */ a; 716 struct iovec32 *oio; 717 struct iovec *nio; 718 719 sg = stackgap_init(); 720 721 if (uap->iovcnt > (STACKGAPLEN / sizeof (struct iovec))) 722 return (EINVAL); 723 724 osize = uap->iovcnt * sizeof (struct iovec32); 725 nsize = uap->iovcnt * sizeof (struct iovec); 726 727 oio = malloc(osize, M_TEMP, M_WAITOK); 728 nio = malloc(nsize, M_TEMP, M_WAITOK); 729 730 error = 0; 731 if ((error = copyin(uap->iovp, oio, osize))) 732 goto punt; 733 for (i = 0; i < uap->iovcnt; i++) { 734 nio[i].iov_base = PTRIN(oio[i].iov_base); 735 nio[i].iov_len = oio[i].iov_len; 736 } 737 738 a.fd = uap->fd; 739 a.iovp = stackgap_alloc(&sg, nsize); 740 a.iovcnt = uap->iovcnt; 741 742 if ((error = copyout(nio, (caddr_t)a.iovp, nsize))) 743 goto punt; 744 error = writev(td, &a); 745 746punt: 747 free(oio, M_TEMP); 748 free(nio, M_TEMP); 749 return (error); 750} 751 752int 753freebsd32_settimeofday(struct thread *td, 754 struct freebsd32_settimeofday_args *uap) 755{ 756 int error; 757 caddr_t sg; 758 struct timeval32 *p32, s32; 759 struct timeval *p = NULL, s; 760 761 p32 = uap->tv; 762 if (p32) { 763 sg = stackgap_init(); 764 p = stackgap_alloc(&sg, sizeof(struct timeval)); 765 uap->tv = (struct timeval32 *)p; 766 error = copyin(p32, &s32, sizeof(s32)); 767 if (error) 768 return (error); 769 CP(s32, s, tv_sec); 770 CP(s32, s, tv_usec); 771 error = copyout(&s, p, sizeof(s)); 772 if (error) 773 return (error); 774 } 775 return (settimeofday(td, (struct settimeofday_args *) uap)); 776} 777 778int 779freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 780{ 781 int error; 782 caddr_t sg; 783 struct timeval32 *p32, s32[2]; 784 struct timeval *p = NULL, s[2]; 785 786 p32 = uap->tptr; 787 if (p32) { 788 sg = stackgap_init(); 789 p = stackgap_alloc(&sg, 2*sizeof(struct timeval)); 790 uap->tptr = (struct timeval32 *)p; 791 error = copyin(p32, s32, sizeof(s32)); 792 if (error) 793 return (error); 794 CP(s32[0], s[0], tv_sec); 795 CP(s32[0], s[0], tv_usec); 796 CP(s32[1], s[1], tv_sec); 797 CP(s32[1], s[1], tv_usec); 798 error = copyout(s, p, sizeof(s)); 799 if (error) 800 return (error); 801 } 802 return (utimes(td, (struct utimes_args *) uap)); 803} 804 805int 806freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 807{ 808 int error; 809 caddr_t sg; 810 struct timeval32 *p32, *op32, s32; 811 struct timeval *p = NULL, *op = NULL, s; 812 813 p32 = uap->delta; 814 if (p32) { 815 sg = stackgap_init(); 816 p = stackgap_alloc(&sg, sizeof(struct timeval)); 817 uap->delta = (struct timeval32 *)p; 818 error = copyin(p32, &s32, sizeof(s32)); 819 if (error) 820 return (error); 821 CP(s32, s, tv_sec); 822 CP(s32, s, tv_usec); 823 error = copyout(&s, p, sizeof(s)); 824 if (error) 825 return (error); 826 } 827 op32 = uap->olddelta; 828 if (op32) { 829 sg = stackgap_init(); 830 op = stackgap_alloc(&sg, sizeof(struct timeval)); 831 uap->olddelta = (struct timeval32 *)op; 832 } 833 error = utimes(td, (struct utimes_args *) uap); 834 if (error) 835 return error; 836 if (op32) { 837 error = copyin(op, &s, sizeof(s)); 838 if (error) 839 return (error); 840 CP(s, s32, tv_sec); 841 CP(s, s32, tv_usec); 842 error = copyout(&s32, op32, sizeof(s32)); 843 } 844 return (error); 845} 846 847int 848freebsd32_statfs(struct thread *td, struct freebsd32_statfs_args *uap) 849{ 850 int error; 851 caddr_t sg; 852 struct statfs32 *p32, s32; 853 struct statfs *p = NULL, s; 854 855 p32 = uap->buf; 856 if (p32) { 857 sg = stackgap_init(); 858 p = stackgap_alloc(&sg, sizeof(struct statfs)); 859 uap->buf = (struct statfs32 *)p; 860 } 861 error = statfs(td, (struct statfs_args *) uap); 862 if (error) 863 return (error); 864 if (p32) { 865 error = copyin(p, &s, sizeof(s)); 866 if (error) 867 return (error); 868 copy_statfs(&s, &s32); 869 error = copyout(&s32, p32, sizeof(s32)); 870 } 871 return (error); 872} 873 874int 875freebsd32_fstatfs(struct thread *td, struct freebsd32_fstatfs_args *uap) 876{ 877 int error; 878 caddr_t sg; 879 struct statfs32 *p32, s32; 880 struct statfs *p = NULL, s; 881 882 p32 = uap->buf; 883 if (p32) { 884 sg = stackgap_init(); 885 p = stackgap_alloc(&sg, sizeof(struct statfs)); 886 uap->buf = (struct statfs32 *)p; 887 } 888 error = fstatfs(td, (struct fstatfs_args *) uap); 889 if (error) 890 return (error); 891 if (p32) { 892 error = copyin(p, &s, sizeof(s)); 893 if (error) 894 return (error); 895 copy_statfs(&s, &s32); 896 error = copyout(&s32, p32, sizeof(s32)); 897 } 898 return (error); 899} 900 901int 902freebsd32_semsys(struct thread *td, struct freebsd32_semsys_args *uap) 903{ 904 /* 905 * Vector through to semsys if it is loaded. 906 */ 907 return sysent[169].sy_call(td, uap); 908} 909 910int 911freebsd32_msgsys(struct thread *td, struct freebsd32_msgsys_args *uap) 912{ 913 /* 914 * Vector through to msgsys if it is loaded. 915 */ 916 return sysent[170].sy_call(td, uap); 917} 918 919int 920freebsd32_shmsys(struct thread *td, struct freebsd32_shmsys_args *uap) 921{ 922 /* 923 * Vector through to shmsys if it is loaded. 924 */ 925 return sysent[171].sy_call(td, uap); 926} 927 928int 929freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 930{ 931 struct pread_args ap; 932 933 ap.fd = uap->fd; 934 ap.buf = uap->buf; 935 ap.nbyte = uap->nbyte; 936 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 937 return (pread(td, &ap)); 938} 939 940int 941freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 942{ 943 struct pwrite_args ap; 944 945 ap.fd = uap->fd; 946 ap.buf = uap->buf; 947 ap.nbyte = uap->nbyte; 948 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 949 return (pwrite(td, &ap)); 950} 951 952int 953freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 954{ 955 int error; 956 struct lseek_args ap; 957 off_t pos; 958 959 ap.fd = uap->fd; 960 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 961 ap.whence = uap->whence; 962 error = lseek(td, &ap); 963 /* Expand the quad return into two parts for eax and edx */ 964 pos = *(off_t *)(td->td_retval); 965 td->td_retval[0] = pos & 0xffffffff; /* %eax */ 966 td->td_retval[1] = pos >> 32; /* %edx */ 967 return error; 968} 969 970int 971freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 972{ 973 struct truncate_args ap; 974 975 ap.path = uap->path; 976 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 977 return (truncate(td, &ap)); 978} 979 980int 981freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 982{ 983 struct ftruncate_args ap; 984 985 ap.fd = uap->fd; 986 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 987 return (ftruncate(td, &ap)); 988} 989 990#ifdef COMPAT_FREEBSD4 991int 992freebsd4_freebsd32_sendfile(struct thread *td, 993 struct freebsd4_freebsd32_sendfile_args *uap) 994{ 995 struct freebsd4_sendfile_args ap; 996 997 ap.fd = uap->fd; 998 ap.s = uap->s; 999 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1000 ap.nbytes = uap->nbytes; /* XXX check */ 1001 ap.hdtr = uap->hdtr; /* XXX check */ 1002 ap.sbytes = uap->sbytes; /* XXX FIXME!! */ 1003 ap.flags = uap->flags; 1004 return (freebsd4_sendfile(td, &ap)); 1005} 1006#endif 1007 1008int 1009freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1010{ 1011 struct sendfile_args ap; 1012 1013 ap.fd = uap->fd; 1014 ap.s = uap->s; 1015 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1016 ap.nbytes = uap->nbytes; /* XXX check */ 1017 ap.hdtr = uap->hdtr; /* XXX check */ 1018 ap.sbytes = uap->sbytes; /* XXX FIXME!! */ 1019 ap.flags = uap->flags; 1020 return (sendfile(td, &ap)); 1021} 1022 1023struct stat32 { 1024 udev_t st_dev; 1025 ino_t st_ino; 1026 mode_t st_mode; 1027 nlink_t st_nlink; 1028 uid_t st_uid; 1029 gid_t st_gid; 1030 udev_t st_rdev; 1031 struct timespec32 st_atimespec; 1032 struct timespec32 st_mtimespec; 1033 struct timespec32 st_ctimespec; 1034 off_t st_size; 1035 int64_t st_blocks; 1036 u_int32_t st_blksize; 1037 u_int32_t st_flags; 1038 u_int32_t st_gen; 1039 struct timespec32 st_birthtimespec; 1040 unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec32)); 1041 unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec32)); 1042}; 1043 1044 1045CTASSERT(sizeof(struct stat32) == 96); 1046 1047static void 1048copy_stat( struct stat *in, struct stat32 *out) 1049{ 1050 CP(*in, *out, st_dev); 1051 CP(*in, *out, st_ino); 1052 CP(*in, *out, st_mode); 1053 CP(*in, *out, st_nlink); 1054 CP(*in, *out, st_uid); 1055 CP(*in, *out, st_gid); 1056 CP(*in, *out, st_rdev); 1057 TS_CP(*in, *out, st_atimespec); 1058 TS_CP(*in, *out, st_mtimespec); 1059 TS_CP(*in, *out, st_ctimespec); 1060 CP(*in, *out, st_size); 1061 CP(*in, *out, st_blocks); 1062 CP(*in, *out, st_blksize); 1063 CP(*in, *out, st_flags); 1064 CP(*in, *out, st_gen); 1065} 1066 1067int 1068freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1069{ 1070 int error; 1071 caddr_t sg; 1072 struct stat32 *p32, s32; 1073 struct stat *p = NULL, s; 1074 1075 p32 = uap->ub; 1076 if (p32) { 1077 sg = stackgap_init(); 1078 p = stackgap_alloc(&sg, sizeof(struct stat)); 1079 uap->ub = (struct stat32 *)p; 1080 } 1081 error = stat(td, (struct stat_args *) uap); 1082 if (error) 1083 return (error); 1084 if (p32) { 1085 error = copyin(p, &s, sizeof(s)); 1086 if (error) 1087 return (error); 1088 copy_stat(&s, &s32); 1089 error = copyout(&s32, p32, sizeof(s32)); 1090 } 1091 return (error); 1092} 1093 1094int 1095freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1096{ 1097 int error; 1098 caddr_t sg; 1099 struct stat32 *p32, s32; 1100 struct stat *p = NULL, s; 1101 1102 p32 = uap->ub; 1103 if (p32) { 1104 sg = stackgap_init(); 1105 p = stackgap_alloc(&sg, sizeof(struct stat)); 1106 uap->ub = (struct stat32 *)p; 1107 } 1108 error = fstat(td, (struct fstat_args *) uap); 1109 if (error) 1110 return (error); 1111 if (p32) { 1112 error = copyin(p, &s, sizeof(s)); 1113 if (error) 1114 return (error); 1115 copy_stat(&s, &s32); 1116 error = copyout(&s32, p32, sizeof(s32)); 1117 } 1118 return (error); 1119} 1120 1121int 1122freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1123{ 1124 int error; 1125 caddr_t sg; 1126 struct stat32 *p32, s32; 1127 struct stat *p = NULL, s; 1128 1129 p32 = uap->ub; 1130 if (p32) { 1131 sg = stackgap_init(); 1132 p = stackgap_alloc(&sg, sizeof(struct stat)); 1133 uap->ub = (struct stat32 *)p; 1134 } 1135 error = lstat(td, (struct lstat_args *) uap); 1136 if (error) 1137 return (error); 1138 if (p32) { 1139 error = copyin(p, &s, sizeof(s)); 1140 if (error) 1141 return (error); 1142 copy_stat(&s, &s32); 1143 error = copyout(&s32, p32, sizeof(s32)); 1144 } 1145 return (error); 1146} 1147 1148/* 1149 * MPSAFE 1150 */ 1151int 1152freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1153{ 1154 int error, name[CTL_MAXNAME]; 1155 size_t j, oldlen; 1156 1157 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1158 return (EINVAL); 1159 1160 error = copyin(uap->name, &name, uap->namelen * sizeof(int)); 1161 if (error) 1162 return (error); 1163 1164 mtx_lock(&Giant); 1165 1166 if (uap->oldlenp) 1167 oldlen = fuword32(uap->oldlenp); 1168 else 1169 oldlen = 0; 1170 error = userland_sysctl(td, name, uap->namelen, 1171 uap->old, &oldlen, 1, 1172 uap->new, uap->newlen, &j); 1173 if (error && error != ENOMEM) 1174 goto done2; 1175 if (uap->oldlenp) { 1176 suword32(uap->oldlenp, j); 1177 } 1178done2: 1179 mtx_unlock(&Giant); 1180 return (error); 1181} 1182 1183struct sigaction32 { 1184 u_int32_t sa_u; 1185 int sa_flags; 1186 sigset_t sa_mask; 1187}; 1188 1189CTASSERT(sizeof(struct sigaction32) == 24); 1190 1191int 1192freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1193{ 1194 struct sigaction32 s32; 1195 struct sigaction sa, osa, *sap; 1196 int error; 1197 1198 if (uap->act) { 1199 error = copyin(uap->act, &s32, sizeof(s32)); 1200 if (error) 1201 return (error); 1202 sa.sa_handler = PTRIN(s32.sa_u); 1203 CP(s32, sa, sa_flags); 1204 CP(s32, sa, sa_mask); 1205 sap = &sa; 1206 } else 1207 sap = NULL; 1208 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 1209 if (error != 0 && uap->oact != NULL) { 1210 s32.sa_u = PTROUT(osa.sa_handler); 1211 CP(osa, s32, sa_flags); 1212 CP(osa, s32, sa_mask); 1213 error = copyout(&s32, uap->oact, sizeof(s32)); 1214 } 1215 return (error); 1216} 1217 1218#ifdef COMPAT_FREEBSD4 1219int 1220freebsd4_freebsd32_sigaction(struct thread *td, 1221 struct freebsd4_freebsd32_sigaction_args *uap) 1222{ 1223 struct sigaction32 s32; 1224 struct sigaction sa, osa, *sap; 1225 int error; 1226 1227 if (uap->act) { 1228 error = copyin(uap->act, &s32, sizeof(s32)); 1229 if (error) 1230 return (error); 1231 sa.sa_handler = PTRIN(s32.sa_u); 1232 CP(s32, sa, sa_flags); 1233 CP(s32, sa, sa_mask); 1234 sap = &sa; 1235 } else 1236 sap = NULL; 1237 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 1238 if (error != 0 && uap->oact != NULL) { 1239 s32.sa_u = PTROUT(osa.sa_handler); 1240 CP(osa, s32, sa_flags); 1241 CP(osa, s32, sa_mask); 1242 error = copyout(&s32, uap->oact, sizeof(s32)); 1243 } 1244 return (error); 1245} 1246#endif 1247 1248#if 0 1249 1250int 1251freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 1252{ 1253 int error; 1254 caddr_t sg; 1255 struct yyy32 *p32, s32; 1256 struct yyy *p = NULL, s; 1257 1258 p32 = uap->zzz; 1259 if (p32) { 1260 sg = stackgap_init(); 1261 p = stackgap_alloc(&sg, sizeof(struct yyy)); 1262 uap->zzz = (struct yyy32 *)p; 1263 error = copyin(p32, &s32, sizeof(s32)); 1264 if (error) 1265 return (error); 1266 /* translate in */ 1267 error = copyout(&s, p, sizeof(s)); 1268 if (error) 1269 return (error); 1270 } 1271 error = xxx(td, (struct xxx_args *) uap); 1272 if (error) 1273 return (error); 1274 if (p32) { 1275 error = copyin(p, &s, sizeof(s)); 1276 if (error) 1277 return (error); 1278 /* translate out */ 1279 error = copyout(&s32, p32, sizeof(s32)); 1280 } 1281 return (error); 1282} 1283 1284#endif 1285