freebsd32_misc.c revision 125171
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 125171 2004-01-28 23:45:48Z 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/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/user.h> 68#include <sys/utsname.h> 69#include <sys/vnode.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; 92 caddr_t sg; 93 struct rusage32 *rusage32, ru32; 94 struct rusage *rusage = NULL, ru; 95 96 rusage32 = uap->rusage; 97 if (rusage32) { 98 sg = stackgap_init(); 99 rusage = stackgap_alloc(&sg, sizeof(struct rusage)); 100 uap->rusage = (struct rusage32 *)rusage; 101 } 102 error = wait4(td, (struct wait_args *)uap); 103 if (error) 104 return (error); 105 if (rusage32 && (error = copyin(rusage, &ru, sizeof(ru)) == 0)) { 106 TV_CP(ru, ru32, ru_utime); 107 TV_CP(ru, ru32, ru_stime); 108 CP(ru, ru32, ru_maxrss); 109 CP(ru, ru32, ru_ixrss); 110 CP(ru, ru32, ru_idrss); 111 CP(ru, ru32, ru_isrss); 112 CP(ru, ru32, ru_minflt); 113 CP(ru, ru32, ru_majflt); 114 CP(ru, ru32, ru_nswap); 115 CP(ru, ru32, ru_inblock); 116 CP(ru, ru32, ru_oublock); 117 CP(ru, ru32, ru_msgsnd); 118 CP(ru, ru32, ru_msgrcv); 119 CP(ru, ru32, ru_nsignals); 120 CP(ru, ru32, ru_nvcsw); 121 CP(ru, ru32, ru_nivcsw); 122 error = copyout(&ru32, rusage32, sizeof(ru32)); 123 } 124 return (error); 125} 126 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, MNAMELEN); 148 CP(*in, *out, f_syncreads); 149 CP(*in, *out, f_asyncreads); 150 bcopy(in->f_mntfromname, 151 out->f_mntfromname, MNAMELEN); 152} 153 154int 155freebsd32_getfsstat(struct thread *td, struct freebsd32_getfsstat_args *uap) 156{ 157 int error; 158 caddr_t sg; 159 struct statfs32 *sp32, stat32; 160 struct statfs *sp = NULL, stat; 161 int maxcount, count, i; 162 163 sp32 = uap->buf; 164 maxcount = uap->bufsize / sizeof(struct statfs32); 165 166 if (sp32) { 167 sg = stackgap_init(); 168 sp = stackgap_alloc(&sg, sizeof(struct statfs) * maxcount); 169 uap->buf = (struct statfs32 *)sp; 170 } 171 error = getfsstat(td, (struct getfsstat_args *) uap); 172 if (sp32 && !error) { 173 count = td->td_retval[0]; 174 for (i = 0; i < count; i++) { 175 error = copyin(&sp[i], &stat, sizeof(stat)); 176 if (error) 177 return (error); 178 copy_statfs(&stat, &stat32); 179 error = copyout(&stat32, &sp32[i], sizeof(stat32)); 180 if (error) 181 return (error); 182 } 183 } 184 return (error); 185} 186 187struct sigaltstack32 { 188 u_int32_t ss_sp; 189 u_int32_t ss_size; 190 int ss_flags; 191}; 192 193CTASSERT(sizeof(struct sigaltstack32) == 12); 194 195int 196freebsd32_sigaltstack(struct thread *td, 197 struct freebsd32_sigaltstack_args *uap) 198{ 199 struct sigaltstack32 s32; 200 struct sigaltstack ss, oss, *ssp; 201 int error; 202 203 if (uap->ss != NULL) { 204 error = copyin(uap->ss, &s32, sizeof(s32)); 205 if (error) 206 return (error); 207 PTRIN_CP(s32, ss, ss_sp); 208 CP(s32, ss, ss_size); 209 CP(s32, ss, ss_flags); 210 ssp = &ss; 211 } else 212 ssp = NULL; 213 error = kern_sigaltstack(td, ssp, &oss); 214 if (error == 0 && uap->oss != NULL) { 215 PTROUT_CP(oss, s32, ss_sp); 216 CP(oss, s32, ss_size); 217 CP(oss, s32, ss_flags); 218 error = copyout(&s32, uap->oss, sizeof(s32)); 219 } 220 return (error); 221} 222 223int 224freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 225{ 226 int error; 227 caddr_t sg; 228 struct execve_args ap; 229 u_int32_t *p32, arg; 230 char **p, *p64; 231 int count; 232 233 sg = stackgap_init(); 234 ap.fname = uap->fname; 235 236 if (uap->argv) { 237 count = 0; 238 p32 = uap->argv; 239 do { 240 error = copyin(p32++, &arg, sizeof(arg)); 241 if (error) 242 return error; 243 count++; 244 } while (arg != 0); 245 p = stackgap_alloc(&sg, count * sizeof(char *)); 246 ap.argv = p; 247 p32 = uap->argv; 248 do { 249 error = copyin(p32++, &arg, sizeof(arg)); 250 if (error) 251 return error; 252 p64 = PTRIN(arg); 253 error = copyout(&p64, p++, sizeof(p64)); 254 if (error) 255 return error; 256 } while (arg != 0); 257 } 258 if (uap->envv) { 259 count = 0; 260 p32 = uap->envv; 261 do { 262 error = copyin(p32++, &arg, sizeof(arg)); 263 if (error) 264 return error; 265 count++; 266 } while (arg != 0); 267 p = stackgap_alloc(&sg, count * sizeof(char *)); 268 ap.envv = p; 269 p32 = uap->envv; 270 do { 271 error = copyin(p32++, &arg, sizeof(arg)); 272 if (error) 273 return error; 274 p64 = PTRIN(arg); 275 error = copyout(&p64, p++, sizeof(p64)); 276 if (error) 277 return error; 278 } while (arg != 0); 279 } 280 281 return execve(td, &ap); 282} 283 284#ifdef __ia64__ 285static int 286freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 287 int prot, int fd, off_t pos) 288{ 289 vm_map_t map; 290 vm_map_entry_t entry; 291 int rv; 292 293 map = &td->td_proc->p_vmspace->vm_map; 294 if (fd != -1) 295 prot |= VM_PROT_WRITE; 296 297 if (vm_map_lookup_entry(map, start, &entry)) { 298 if ((entry->protection & prot) != prot) { 299 rv = vm_map_protect(map, 300 trunc_page(start), 301 round_page(end), 302 entry->protection | prot, 303 FALSE); 304 if (rv != KERN_SUCCESS) 305 return (EINVAL); 306 } 307 } else { 308 vm_offset_t addr = trunc_page(start); 309 rv = vm_map_find(map, 0, 0, 310 &addr, PAGE_SIZE, FALSE, prot, 311 VM_PROT_ALL, 0); 312 if (rv != KERN_SUCCESS) 313 return (EINVAL); 314 } 315 316 if (fd != -1) { 317 struct pread_args r; 318 r.fd = fd; 319 r.buf = (void *) start; 320 r.nbyte = end - start; 321 r.offset = pos; 322 return (pread(td, &r)); 323 } else { 324 while (start < end) { 325 subyte((void *) start, 0); 326 start++; 327 } 328 return (0); 329 } 330} 331#endif 332 333int 334freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 335{ 336 struct mmap_args ap; 337 vm_offset_t addr = (vm_offset_t) uap->addr; 338 vm_size_t len = uap->len; 339 int prot = uap->prot; 340 int flags = uap->flags; 341 int fd = uap->fd; 342 off_t pos = (uap->poslo 343 | ((off_t)uap->poshi << 32)); 344#ifdef __ia64__ 345 vm_size_t pageoff; 346 int error; 347 348 /* 349 * Attempt to handle page size hassles. 350 */ 351 pageoff = (pos & PAGE_MASK); 352 if (flags & MAP_FIXED) { 353 vm_offset_t start, end; 354 start = addr; 355 end = addr + len; 356 357 if (start != trunc_page(start)) { 358 error = freebsd32_mmap_partial(td, start, 359 round_page(start), prot, 360 fd, pos); 361 if (fd != -1) 362 pos += round_page(start) - start; 363 start = round_page(start); 364 } 365 if (end != round_page(end)) { 366 vm_offset_t t = trunc_page(end); 367 error = freebsd32_mmap_partial(td, t, end, 368 prot, fd, 369 pos + t - start); 370 end = trunc_page(end); 371 } 372 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 373 /* 374 * We can't map this region at all. The specified 375 * address doesn't have the same alignment as the file 376 * position. Fake the mapping by simply reading the 377 * entire region into memory. First we need to make 378 * sure the region exists. 379 */ 380 vm_map_t map; 381 struct pread_args r; 382 int rv; 383 384 prot |= VM_PROT_WRITE; 385 map = &td->td_proc->p_vmspace->vm_map; 386 rv = vm_map_remove(map, start, end); 387 if (rv != KERN_SUCCESS) 388 return (EINVAL); 389 rv = vm_map_find(map, 0, 0, 390 &start, end - start, FALSE, 391 prot, VM_PROT_ALL, 0); 392 if (rv != KERN_SUCCESS) 393 return (EINVAL); 394 r.fd = fd; 395 r.buf = (void *) start; 396 r.nbyte = end - start; 397 r.offset = pos; 398 error = pread(td, &r); 399 if (error) 400 return (error); 401 402 td->td_retval[0] = addr; 403 return (0); 404 } 405 if (end == start) { 406 /* 407 * After dealing with the ragged ends, there 408 * might be none left. 409 */ 410 td->td_retval[0] = addr; 411 return (0); 412 } 413 addr = start; 414 len = end - start; 415 } 416#endif 417 418 ap.addr = (void *) addr; 419 ap.len = len; 420 ap.prot = prot; 421 ap.flags = flags; 422 ap.fd = fd; 423 ap.pos = pos; 424 425 return (mmap(td, &ap)); 426} 427 428struct itimerval32 { 429 struct timeval32 it_interval; 430 struct timeval32 it_value; 431}; 432 433CTASSERT(sizeof(struct itimerval32) == 16); 434 435int 436freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 437{ 438 int error; 439 caddr_t sg; 440 struct itimerval32 *p32, *op32, s32; 441 struct itimerval *p = NULL, *op = NULL, s; 442 443 p32 = uap->itv; 444 if (p32) { 445 sg = stackgap_init(); 446 p = stackgap_alloc(&sg, sizeof(struct itimerval)); 447 uap->itv = (struct itimerval32 *)p; 448 error = copyin(p32, &s32, sizeof(s32)); 449 if (error) 450 return (error); 451 TV_CP(s32, s, it_interval); 452 TV_CP(s32, s, it_value); 453 error = copyout(&s, p, sizeof(s)); 454 if (error) 455 return (error); 456 } 457 op32 = uap->oitv; 458 if (op32) { 459 sg = stackgap_init(); 460 op = stackgap_alloc(&sg, sizeof(struct itimerval)); 461 uap->oitv = (struct itimerval32 *)op; 462 } 463 error = setitimer(td, (struct setitimer_args *) uap); 464 if (error) 465 return (error); 466 if (op32) { 467 error = copyin(op, &s, sizeof(s)); 468 if (error) 469 return (error); 470 TV_CP(s, s32, it_interval); 471 TV_CP(s, s32, it_value); 472 error = copyout(&s32, op32, sizeof(s32)); 473 } 474 return (error); 475} 476 477int 478freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 479{ 480 int error; 481 caddr_t sg; 482 struct itimerval32 *p32, s32; 483 struct itimerval *p = NULL, s; 484 485 p32 = uap->itv; 486 if (p32) { 487 sg = stackgap_init(); 488 p = stackgap_alloc(&sg, sizeof(struct itimerval)); 489 uap->itv = (struct itimerval32 *)p; 490 } 491 error = getitimer(td, (struct getitimer_args *) uap); 492 if (error) 493 return (error); 494 if (p32) { 495 error = copyin(p, &s, sizeof(s)); 496 if (error) 497 return (error); 498 TV_CP(s, s32, it_interval); 499 TV_CP(s, s32, it_value); 500 error = copyout(&s32, p32, sizeof(s32)); 501 } 502 return (error); 503} 504 505int 506freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 507{ 508 int error; 509 caddr_t sg; 510 struct timeval32 *p32, s32; 511 struct timeval *p = NULL, s; 512 513 p32 = uap->tv; 514 if (p32) { 515 sg = stackgap_init(); 516 p = stackgap_alloc(&sg, sizeof(struct timeval)); 517 uap->tv = (struct timeval32 *)p; 518 error = copyin(p32, &s32, sizeof(s32)); 519 if (error) 520 return (error); 521 CP(s32, s, tv_sec); 522 CP(s32, s, tv_usec); 523 error = copyout(&s, p, sizeof(s)); 524 if (error) 525 return (error); 526 } 527 /* 528 * XXX big-endian needs to convert the fd_sets too. 529 */ 530 return (select(td, (struct select_args *) uap)); 531} 532 533struct kevent32 { 534 u_int32_t ident; /* identifier for this event */ 535 short filter; /* filter for event */ 536 u_short flags; 537 u_int fflags; 538 int32_t data; 539 u_int32_t udata; /* opaque user data identifier */ 540}; 541 542CTASSERT(sizeof(struct kevent32) == 20); 543 544int 545freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 546{ 547 int error; 548 caddr_t sg; 549 struct timespec32 ts32; 550 struct timespec ts; 551 struct kevent32 ks32; 552 struct kevent *ks; 553 struct kevent_args a; 554 int i; 555 556 sg = stackgap_init(); 557 558 a.fd = uap->fd; 559 a.changelist = uap->changelist; 560 a.nchanges = uap->nchanges; 561 a.eventlist = uap->eventlist; 562 a.nevents = uap->nevents; 563 a.timeout = NULL; 564 565 if (uap->timeout) { 566 a.timeout = stackgap_alloc(&sg, sizeof(struct timespec)); 567 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 568 if (error) 569 return (error); 570 CP(ts32, ts, tv_sec); 571 CP(ts32, ts, tv_nsec); 572 error = copyout(&ts, (void *)(uintptr_t)a.timeout, sizeof(ts)); 573 if (error) 574 return (error); 575 } 576 if (uap->changelist) { 577 a.changelist = (struct kevent *)stackgap_alloc(&sg, 578 uap->nchanges * sizeof(struct kevent)); 579 for (i = 0; i < uap->nchanges; i++) { 580 error = copyin(&uap->changelist[i], &ks32, 581 sizeof(ks32)); 582 if (error) 583 return (error); 584 ks = (struct kevent *)(uintptr_t)&a.changelist[i]; 585 CP(ks32, *ks, ident); 586 CP(ks32, *ks, filter); 587 CP(ks32, *ks, flags); 588 CP(ks32, *ks, fflags); 589 CP(ks32, *ks, data); 590 PTRIN_CP(ks32, *ks, udata); 591 } 592 } 593 if (uap->eventlist) { 594 a.eventlist = stackgap_alloc(&sg, 595 uap->nevents * sizeof(struct kevent)); 596 } 597 error = kevent(td, &a); 598 if (uap->eventlist && error > 0) { 599 for (i = 0; i < error; i++) { 600 ks = &a.eventlist[i]; 601 CP(*ks, ks32, ident); 602 CP(*ks, ks32, filter); 603 CP(*ks, ks32, flags); 604 CP(*ks, ks32, fflags); 605 CP(*ks, ks32, data); 606 PTROUT_CP(*ks, ks32, udata); 607 error = copyout(&ks32, &uap->eventlist[i], 608 sizeof(ks32)); 609 if (error) 610 return (error); 611 } 612 } 613 return error; 614} 615 616int 617freebsd32_gettimeofday(struct thread *td, 618 struct freebsd32_gettimeofday_args *uap) 619{ 620 struct timeval atv; 621 struct timeval32 atv32; 622 struct timezone rtz; 623 int error = 0; 624 625 if (uap->tp) { 626 microtime(&atv); 627 CP(atv, atv32, tv_sec); 628 CP(atv, atv32, tv_usec); 629 error = copyout(&atv32, uap->tp, sizeof (atv32)); 630 } 631 if (error == 0 && uap->tzp != NULL) { 632 rtz.tz_minuteswest = tz_minuteswest; 633 rtz.tz_dsttime = tz_dsttime; 634 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 635 } 636 return (error); 637} 638 639int 640freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 641{ 642 int error; 643 caddr_t sg; 644 struct rusage32 *p32, s32; 645 struct rusage *p = NULL, s; 646 647 p32 = uap->rusage; 648 if (p32) { 649 sg = stackgap_init(); 650 p = stackgap_alloc(&sg, sizeof(struct rusage)); 651 uap->rusage = (struct rusage32 *)p; 652 } 653 error = getrusage(td, (struct getrusage_args *) uap); 654 if (error) 655 return (error); 656 if (p32) { 657 error = copyin(p, &s, sizeof(s)); 658 if (error) 659 return (error); 660 TV_CP(s, s32, ru_utime); 661 TV_CP(s, s32, ru_stime); 662 CP(s, s32, ru_maxrss); 663 CP(s, s32, ru_ixrss); 664 CP(s, s32, ru_idrss); 665 CP(s, s32, ru_isrss); 666 CP(s, s32, ru_minflt); 667 CP(s, s32, ru_majflt); 668 CP(s, s32, ru_nswap); 669 CP(s, s32, ru_inblock); 670 CP(s, s32, ru_oublock); 671 CP(s, s32, ru_msgsnd); 672 CP(s, s32, ru_msgrcv); 673 CP(s, s32, ru_nsignals); 674 CP(s, s32, ru_nvcsw); 675 CP(s, s32, ru_nivcsw); 676 error = copyout(&s32, p32, sizeof(s32)); 677 } 678 return (error); 679} 680 681struct iovec32 { 682 u_int32_t iov_base; 683 int iov_len; 684}; 685#define STACKGAPLEN 400 686 687CTASSERT(sizeof(struct iovec32) == 8); 688 689int 690freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 691{ 692 int error, osize, nsize, i; 693 caddr_t sg; 694 struct readv_args /* { 695 syscallarg(int) fd; 696 syscallarg(struct iovec *) iovp; 697 syscallarg(u_int) iovcnt; 698 } */ a; 699 struct iovec32 *oio; 700 struct iovec *nio; 701 702 sg = stackgap_init(); 703 704 if (uap->iovcnt > (STACKGAPLEN / sizeof (struct iovec))) 705 return (EINVAL); 706 707 osize = uap->iovcnt * sizeof (struct iovec32); 708 nsize = uap->iovcnt * sizeof (struct iovec); 709 710 oio = malloc(osize, M_TEMP, M_WAITOK); 711 nio = malloc(nsize, M_TEMP, M_WAITOK); 712 713 error = 0; 714 if ((error = copyin(uap->iovp, oio, osize))) 715 goto punt; 716 for (i = 0; i < uap->iovcnt; i++) { 717 nio[i].iov_base = PTRIN(oio[i].iov_base); 718 nio[i].iov_len = oio[i].iov_len; 719 } 720 721 a.fd = uap->fd; 722 a.iovp = stackgap_alloc(&sg, nsize); 723 a.iovcnt = uap->iovcnt; 724 725 if ((error = copyout(nio, (caddr_t)a.iovp, nsize))) 726 goto punt; 727 error = readv(td, &a); 728 729punt: 730 free(oio, M_TEMP); 731 free(nio, M_TEMP); 732 return (error); 733} 734 735int 736freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 737{ 738 int error, i, nsize, osize; 739 caddr_t sg; 740 struct writev_args /* { 741 syscallarg(int) fd; 742 syscallarg(struct iovec *) iovp; 743 syscallarg(u_int) iovcnt; 744 } */ a; 745 struct iovec32 *oio; 746 struct iovec *nio; 747 748 sg = stackgap_init(); 749 750 if (uap->iovcnt > (STACKGAPLEN / sizeof (struct iovec))) 751 return (EINVAL); 752 753 osize = uap->iovcnt * sizeof (struct iovec32); 754 nsize = uap->iovcnt * sizeof (struct iovec); 755 756 oio = malloc(osize, M_TEMP, M_WAITOK); 757 nio = malloc(nsize, M_TEMP, M_WAITOK); 758 759 error = 0; 760 if ((error = copyin(uap->iovp, oio, osize))) 761 goto punt; 762 for (i = 0; i < uap->iovcnt; i++) { 763 nio[i].iov_base = PTRIN(oio[i].iov_base); 764 nio[i].iov_len = oio[i].iov_len; 765 } 766 767 a.fd = uap->fd; 768 a.iovp = stackgap_alloc(&sg, nsize); 769 a.iovcnt = uap->iovcnt; 770 771 if ((error = copyout(nio, (caddr_t)a.iovp, nsize))) 772 goto punt; 773 error = writev(td, &a); 774 775punt: 776 free(oio, M_TEMP); 777 free(nio, M_TEMP); 778 return (error); 779} 780 781int 782freebsd32_settimeofday(struct thread *td, 783 struct freebsd32_settimeofday_args *uap) 784{ 785 int error; 786 caddr_t sg; 787 struct timeval32 *p32, s32; 788 struct timeval *p = NULL, s; 789 790 p32 = uap->tv; 791 if (p32) { 792 sg = stackgap_init(); 793 p = stackgap_alloc(&sg, sizeof(struct timeval)); 794 uap->tv = (struct timeval32 *)p; 795 error = copyin(p32, &s32, sizeof(s32)); 796 if (error) 797 return (error); 798 CP(s32, s, tv_sec); 799 CP(s32, s, tv_usec); 800 error = copyout(&s, p, sizeof(s)); 801 if (error) 802 return (error); 803 } 804 return (settimeofday(td, (struct settimeofday_args *) uap)); 805} 806 807int 808freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 809{ 810 int error; 811 caddr_t sg; 812 struct timeval32 *p32, s32[2]; 813 struct timeval *p = NULL, s[2]; 814 815 p32 = uap->tptr; 816 if (p32) { 817 sg = stackgap_init(); 818 p = stackgap_alloc(&sg, 2*sizeof(struct timeval)); 819 uap->tptr = (struct timeval32 *)p; 820 error = copyin(p32, s32, sizeof(s32)); 821 if (error) 822 return (error); 823 CP(s32[0], s[0], tv_sec); 824 CP(s32[0], s[0], tv_usec); 825 CP(s32[1], s[1], tv_sec); 826 CP(s32[1], s[1], tv_usec); 827 error = copyout(s, p, sizeof(s)); 828 if (error) 829 return (error); 830 } 831 return (utimes(td, (struct utimes_args *) uap)); 832} 833 834int 835freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 836{ 837 int error; 838 caddr_t sg; 839 struct timeval32 *p32, *op32, s32; 840 struct timeval *p = NULL, *op = NULL, s; 841 842 p32 = uap->delta; 843 if (p32) { 844 sg = stackgap_init(); 845 p = stackgap_alloc(&sg, sizeof(struct timeval)); 846 uap->delta = (struct timeval32 *)p; 847 error = copyin(p32, &s32, sizeof(s32)); 848 if (error) 849 return (error); 850 CP(s32, s, tv_sec); 851 CP(s32, s, tv_usec); 852 error = copyout(&s, p, sizeof(s)); 853 if (error) 854 return (error); 855 } 856 op32 = uap->olddelta; 857 if (op32) { 858 sg = stackgap_init(); 859 op = stackgap_alloc(&sg, sizeof(struct timeval)); 860 uap->olddelta = (struct timeval32 *)op; 861 } 862 error = utimes(td, (struct utimes_args *) uap); 863 if (error) 864 return error; 865 if (op32) { 866 error = copyin(op, &s, sizeof(s)); 867 if (error) 868 return (error); 869 CP(s, s32, tv_sec); 870 CP(s, s32, tv_usec); 871 error = copyout(&s32, op32, sizeof(s32)); 872 } 873 return (error); 874} 875 876int 877freebsd32_statfs(struct thread *td, struct freebsd32_statfs_args *uap) 878{ 879 int error; 880 caddr_t sg; 881 struct statfs32 *p32, s32; 882 struct statfs *p = NULL, s; 883 884 p32 = uap->buf; 885 if (p32) { 886 sg = stackgap_init(); 887 p = stackgap_alloc(&sg, sizeof(struct statfs)); 888 uap->buf = (struct statfs32 *)p; 889 } 890 error = statfs(td, (struct statfs_args *) uap); 891 if (error) 892 return (error); 893 if (p32) { 894 error = copyin(p, &s, sizeof(s)); 895 if (error) 896 return (error); 897 copy_statfs(&s, &s32); 898 error = copyout(&s32, p32, sizeof(s32)); 899 } 900 return (error); 901} 902 903int 904freebsd32_fstatfs(struct thread *td, struct freebsd32_fstatfs_args *uap) 905{ 906 int error; 907 caddr_t sg; 908 struct statfs32 *p32, s32; 909 struct statfs *p = NULL, s; 910 911 p32 = uap->buf; 912 if (p32) { 913 sg = stackgap_init(); 914 p = stackgap_alloc(&sg, sizeof(struct statfs)); 915 uap->buf = (struct statfs32 *)p; 916 } 917 error = fstatfs(td, (struct fstatfs_args *) uap); 918 if (error) 919 return (error); 920 if (p32) { 921 error = copyin(p, &s, sizeof(s)); 922 if (error) 923 return (error); 924 copy_statfs(&s, &s32); 925 error = copyout(&s32, p32, sizeof(s32)); 926 } 927 return (error); 928} 929 930int 931freebsd32_semsys(struct thread *td, struct freebsd32_semsys_args *uap) 932{ 933 /* 934 * Vector through to semsys if it is loaded. 935 */ 936 return sysent[169].sy_call(td, uap); 937} 938 939int 940freebsd32_msgsys(struct thread *td, struct freebsd32_msgsys_args *uap) 941{ 942 /* 943 * Vector through to msgsys if it is loaded. 944 */ 945 return sysent[170].sy_call(td, uap); 946} 947 948int 949freebsd32_shmsys(struct thread *td, struct freebsd32_shmsys_args *uap) 950{ 951 /* 952 * Vector through to shmsys if it is loaded. 953 */ 954 return sysent[171].sy_call(td, uap); 955} 956 957int 958freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 959{ 960 struct pread_args ap; 961 962 ap.fd = uap->fd; 963 ap.buf = uap->buf; 964 ap.nbyte = uap->nbyte; 965 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 966 return (pread(td, &ap)); 967} 968 969int 970freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 971{ 972 struct pwrite_args ap; 973 974 ap.fd = uap->fd; 975 ap.buf = uap->buf; 976 ap.nbyte = uap->nbyte; 977 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 978 return (pwrite(td, &ap)); 979} 980 981int 982freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 983{ 984 int error; 985 struct lseek_args ap; 986 off_t pos; 987 988 ap.fd = uap->fd; 989 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 990 ap.whence = uap->whence; 991 error = lseek(td, &ap); 992 /* Expand the quad return into two parts for eax and edx */ 993 pos = *(off_t *)(td->td_retval); 994 td->td_retval[0] = pos & 0xffffffff; /* %eax */ 995 td->td_retval[1] = pos >> 32; /* %edx */ 996 return error; 997} 998 999int 1000freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1001{ 1002 struct truncate_args ap; 1003 1004 ap.path = uap->path; 1005 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1006 return (truncate(td, &ap)); 1007} 1008 1009int 1010freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1011{ 1012 struct ftruncate_args ap; 1013 1014 ap.fd = uap->fd; 1015 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1016 return (ftruncate(td, &ap)); 1017} 1018 1019#ifdef COMPAT_FREEBSD4 1020int 1021freebsd4_freebsd32_sendfile(struct thread *td, 1022 struct freebsd4_freebsd32_sendfile_args *uap) 1023{ 1024 struct freebsd4_sendfile_args ap; 1025 1026 ap.fd = uap->fd; 1027 ap.s = uap->s; 1028 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1029 ap.nbytes = uap->nbytes; /* XXX check */ 1030 ap.hdtr = uap->hdtr; /* XXX check */ 1031 ap.sbytes = uap->sbytes; /* XXX FIXME!! */ 1032 ap.flags = uap->flags; 1033 return (freebsd4_sendfile(td, &ap)); 1034} 1035#endif 1036 1037int 1038freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1039{ 1040 struct sendfile_args ap; 1041 1042 ap.fd = uap->fd; 1043 ap.s = uap->s; 1044 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1045 ap.nbytes = uap->nbytes; /* XXX check */ 1046 ap.hdtr = uap->hdtr; /* XXX check */ 1047 ap.sbytes = uap->sbytes; /* XXX FIXME!! */ 1048 ap.flags = uap->flags; 1049 return (sendfile(td, &ap)); 1050} 1051 1052struct stat32 { 1053 udev_t st_dev; 1054 ino_t st_ino; 1055 mode_t st_mode; 1056 nlink_t st_nlink; 1057 uid_t st_uid; 1058 gid_t st_gid; 1059 udev_t st_rdev; 1060 struct timespec32 st_atimespec; 1061 struct timespec32 st_mtimespec; 1062 struct timespec32 st_ctimespec; 1063 off_t st_size; 1064 int64_t st_blocks; 1065 u_int32_t st_blksize; 1066 u_int32_t st_flags; 1067 u_int32_t st_gen; 1068 struct timespec32 st_birthtimespec; 1069 unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec32)); 1070 unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec32)); 1071}; 1072 1073 1074CTASSERT(sizeof(struct stat32) == 96); 1075 1076static void 1077copy_stat( struct stat *in, struct stat32 *out) 1078{ 1079 CP(*in, *out, st_dev); 1080 CP(*in, *out, st_ino); 1081 CP(*in, *out, st_mode); 1082 CP(*in, *out, st_nlink); 1083 CP(*in, *out, st_uid); 1084 CP(*in, *out, st_gid); 1085 CP(*in, *out, st_rdev); 1086 TS_CP(*in, *out, st_atimespec); 1087 TS_CP(*in, *out, st_mtimespec); 1088 TS_CP(*in, *out, st_ctimespec); 1089 CP(*in, *out, st_size); 1090 CP(*in, *out, st_blocks); 1091 CP(*in, *out, st_blksize); 1092 CP(*in, *out, st_flags); 1093 CP(*in, *out, st_gen); 1094} 1095 1096int 1097freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1098{ 1099 struct stat sb; 1100 struct stat32 sb32; 1101 int error; 1102 struct nameidata nd; 1103 1104#ifdef LOOKUP_SHARED 1105 NDINIT(&nd, LOOKUP, FOLLOW | LOCKSHARED | LOCKLEAF | NOOBJ, 1106 UIO_USERSPACE, uap->path, td); 1107#else 1108 NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF | NOOBJ, UIO_USERSPACE, 1109 uap->path, td); 1110#endif 1111 if ((error = namei(&nd)) != 0) 1112 return (error); 1113 error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td); 1114 NDFREE(&nd, NDF_ONLY_PNBUF); 1115 vput(nd.ni_vp); 1116 if (error) 1117 return (error); 1118 copy_stat(&sb, &sb32); 1119 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1120 return (error); 1121} 1122 1123int 1124freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1125{ 1126 struct file *fp; 1127 struct stat ub; 1128 struct stat32 ub32; 1129 int error; 1130 1131 if ((error = fget(td, uap->fd, &fp)) != 0) 1132 return (error); 1133 mtx_lock(&Giant); 1134 error = fo_stat(fp, &ub, td->td_ucred, td); 1135 mtx_unlock(&Giant); 1136 fdrop(fp, td); 1137 if (error) 1138 return (error); 1139 copy_stat(&ub, &ub32); 1140 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1141 return (error); 1142} 1143 1144int 1145freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1146{ 1147 int error; 1148 struct vnode *vp; 1149 struct stat sb; 1150 struct stat32 sb32; 1151 struct nameidata nd; 1152 1153 NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF | NOOBJ, UIO_USERSPACE, 1154 uap->path, td); 1155 if ((error = namei(&nd)) != 0) 1156 return (error); 1157 vp = nd.ni_vp; 1158 error = vn_stat(vp, &sb, td->td_ucred, NOCRED, td); 1159 NDFREE(&nd, NDF_ONLY_PNBUF); 1160 vput(vp); 1161 if (error) 1162 return (error); 1163 copy_stat(&sb, &sb32); 1164 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1165 return (error); 1166} 1167 1168/* 1169 * MPSAFE 1170 */ 1171int 1172freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1173{ 1174 int error, name[CTL_MAXNAME]; 1175 size_t j, oldlen; 1176 1177 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1178 return (EINVAL); 1179 1180 error = copyin(uap->name, &name, uap->namelen * sizeof(int)); 1181 if (error) 1182 return (error); 1183 1184 mtx_lock(&Giant); 1185 1186 if (uap->oldlenp) 1187 oldlen = fuword32(uap->oldlenp); 1188 else 1189 oldlen = 0; 1190 error = userland_sysctl(td, name, uap->namelen, 1191 uap->old, &oldlen, 1, 1192 uap->new, uap->newlen, &j); 1193 if (error && error != ENOMEM) 1194 goto done2; 1195 if (uap->oldlenp) { 1196 suword32(uap->oldlenp, j); 1197 } 1198done2: 1199 mtx_unlock(&Giant); 1200 return (error); 1201} 1202 1203struct sigaction32 { 1204 u_int32_t sa_u; 1205 int sa_flags; 1206 sigset_t sa_mask; 1207}; 1208 1209CTASSERT(sizeof(struct sigaction32) == 24); 1210 1211int 1212freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1213{ 1214 struct sigaction32 s32; 1215 struct sigaction sa, osa, *sap; 1216 int error; 1217 1218 if (uap->act) { 1219 error = copyin(uap->act, &s32, sizeof(s32)); 1220 if (error) 1221 return (error); 1222 sa.sa_handler = PTRIN(s32.sa_u); 1223 CP(s32, sa, sa_flags); 1224 CP(s32, sa, sa_mask); 1225 sap = &sa; 1226 } else 1227 sap = NULL; 1228 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 1229 if (error != 0 && uap->oact != NULL) { 1230 s32.sa_u = PTROUT(osa.sa_handler); 1231 CP(osa, s32, sa_flags); 1232 CP(osa, s32, sa_mask); 1233 error = copyout(&s32, uap->oact, sizeof(s32)); 1234 } 1235 return (error); 1236} 1237 1238#ifdef COMPAT_FREEBSD4 1239int 1240freebsd4_freebsd32_sigaction(struct thread *td, 1241 struct freebsd4_freebsd32_sigaction_args *uap) 1242{ 1243 struct sigaction32 s32; 1244 struct sigaction sa, osa, *sap; 1245 int error; 1246 1247 if (uap->act) { 1248 error = copyin(uap->act, &s32, sizeof(s32)); 1249 if (error) 1250 return (error); 1251 sa.sa_handler = PTRIN(s32.sa_u); 1252 CP(s32, sa, sa_flags); 1253 CP(s32, sa, sa_mask); 1254 sap = &sa; 1255 } else 1256 sap = NULL; 1257 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 1258 if (error != 0 && uap->oact != NULL) { 1259 s32.sa_u = PTROUT(osa.sa_handler); 1260 CP(osa, s32, sa_flags); 1261 CP(osa, s32, sa_mask); 1262 error = copyout(&s32, uap->oact, sizeof(s32)); 1263 } 1264 return (error); 1265} 1266#endif 1267 1268#if 0 1269 1270int 1271freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 1272{ 1273 int error; 1274 caddr_t sg; 1275 struct yyy32 *p32, s32; 1276 struct yyy *p = NULL, s; 1277 1278 p32 = uap->zzz; 1279 if (p32) { 1280 sg = stackgap_init(); 1281 p = stackgap_alloc(&sg, sizeof(struct yyy)); 1282 uap->zzz = (struct yyy32 *)p; 1283 error = copyin(p32, &s32, sizeof(s32)); 1284 if (error) 1285 return (error); 1286 /* translate in */ 1287 error = copyout(&s, p, sizeof(s)); 1288 if (error) 1289 return (error); 1290 } 1291 error = xxx(td, (struct xxx_args *) uap); 1292 if (error) 1293 return (error); 1294 if (p32) { 1295 error = copyin(p, &s, sizeof(s)); 1296 if (error) 1297 return (error); 1298 /* translate out */ 1299 error = copyout(&s32, p32, sizeof(s32)); 1300 } 1301 return (error); 1302} 1303 1304#endif 1305