Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/compat/freebsd32/freebsd32_misc.c
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1 /*- 2 * Copyright (c) 2002 Doug Rabson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_compat.h" 31 32 #include <sys/param.h> 33 #include <sys/bus.h> 34 #include <sys/clock.h> 35 #include <sys/exec.h> 36 #include <sys/fcntl.h> 37 #include <sys/filedesc.h> 38 #include <sys/imgact.h> 39 #include <sys/jail.h> 40 #include <sys/kernel.h> 41 #include <sys/limits.h> 42 #include <sys/lock.h> 43 #include <sys/malloc.h> 44 #include <sys/file.h> /* Must come after sys/malloc.h */ 45 #include <sys/mbuf.h> 46 #include <sys/mman.h> 47 #include <sys/module.h> 48 #include <sys/mount.h> 49 #include <sys/mutex.h> 50 #include <sys/namei.h> 51 #include <sys/proc.h> 52 #include <sys/reboot.h> 53 #include <sys/resource.h> 54 #include <sys/resourcevar.h> 55 #include <sys/selinfo.h> 56 #include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 57 #include <sys/pipe.h> /* Must come after sys/selinfo.h */ 58 #include <sys/signal.h> 59 #include <sys/signalvar.h> 60 #include <sys/socket.h> 61 #include <sys/socketvar.h> 62 #include <sys/stat.h> 63 #include <sys/syscall.h> 64 #include <sys/syscallsubr.h> 65 #include <sys/sysctl.h> 66 #include <sys/sysent.h> 67 #include <sys/sysproto.h> 68 #include <sys/systm.h> 69 #include <sys/thr.h> 70 #include <sys/unistd.h> 71 #include <sys/ucontext.h> 72 #include <sys/vnode.h> 73 #include <sys/wait.h> 74 #include <sys/ipc.h> 75 #include <sys/msg.h> 76 #include <sys/sem.h> 77 #include <sys/shm.h> 78 79 #include <vm/vm.h> 80 #include <vm/vm_kern.h> 81 #include <vm/vm_param.h> 82 #include <vm/pmap.h> 83 #include <vm/vm_map.h> 84 #include <vm/vm_object.h> 85 #include <vm/vm_extern.h> 86 87 #include <machine/cpu.h> 88 89 #include <security/audit/audit.h> 90 91 #include <compat/freebsd32/freebsd32_util.h> 92 #include <compat/freebsd32/freebsd32.h> 93 #include <compat/freebsd32/freebsd32_ipc.h> 94 #include <compat/freebsd32/freebsd32_signal.h> 95 #include <compat/freebsd32/freebsd32_proto.h> 96 97 CTASSERT(sizeof(struct timeval32) == 8); 98 CTASSERT(sizeof(struct timespec32) == 8); 99 CTASSERT(sizeof(struct itimerval32) == 16); 100 CTASSERT(sizeof(struct statfs32) == 256); 101 CTASSERT(sizeof(struct rusage32) == 72); 102 CTASSERT(sizeof(struct sigaltstack32) == 12); 103 CTASSERT(sizeof(struct kevent32) == 20); 104 CTASSERT(sizeof(struct iovec32) == 8); 105 CTASSERT(sizeof(struct msghdr32) == 28); 106 CTASSERT(sizeof(struct stat32) == 96); 107 CTASSERT(sizeof(struct sigaction32) == 24); 108 109 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 110 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 111 112 int 113 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 114 { 115 int error, status; 116 struct rusage32 ru32; 117 struct rusage ru, *rup; 118 119 if (uap->rusage != NULL) 120 rup = &ru; 121 else 122 rup = NULL; 123 error = kern_wait(td, uap->pid, &status, uap->options, rup); 124 if (error) 125 return (error); 126 if (uap->status != NULL) 127 error = copyout(&status, uap->status, sizeof(status)); 128 if (uap->rusage != NULL && error == 0) { 129 TV_CP(ru, ru32, ru_utime); 130 TV_CP(ru, ru32, ru_stime); 131 CP(ru, ru32, ru_maxrss); 132 CP(ru, ru32, ru_ixrss); 133 CP(ru, ru32, ru_idrss); 134 CP(ru, ru32, ru_isrss); 135 CP(ru, ru32, ru_minflt); 136 CP(ru, ru32, ru_majflt); 137 CP(ru, ru32, ru_nswap); 138 CP(ru, ru32, ru_inblock); 139 CP(ru, ru32, ru_oublock); 140 CP(ru, ru32, ru_msgsnd); 141 CP(ru, ru32, ru_msgrcv); 142 CP(ru, ru32, ru_nsignals); 143 CP(ru, ru32, ru_nvcsw); 144 CP(ru, ru32, ru_nivcsw); 145 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 146 } 147 return (error); 148 } 149 150 #ifdef COMPAT_FREEBSD4 151 static void 152 copy_statfs(struct statfs *in, struct statfs32 *out) 153 { 154 155 statfs_scale_blocks(in, INT32_MAX); 156 bzero(out, sizeof(*out)); 157 CP(*in, *out, f_bsize); 158 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 159 CP(*in, *out, f_blocks); 160 CP(*in, *out, f_bfree); 161 CP(*in, *out, f_bavail); 162 out->f_files = MIN(in->f_files, INT32_MAX); 163 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 164 CP(*in, *out, f_fsid); 165 CP(*in, *out, f_owner); 166 CP(*in, *out, f_type); 167 CP(*in, *out, f_flags); 168 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 169 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 170 strlcpy(out->f_fstypename, 171 in->f_fstypename, MFSNAMELEN); 172 strlcpy(out->f_mntonname, 173 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 174 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 175 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 176 strlcpy(out->f_mntfromname, 177 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 178 } 179 #endif 180 181 #ifdef COMPAT_FREEBSD4 182 int 183 freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 184 { 185 struct statfs *buf, *sp; 186 struct statfs32 stat32; 187 size_t count, size; 188 int error; 189 190 count = uap->bufsize / sizeof(struct statfs32); 191 size = count * sizeof(struct statfs); 192 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags); 193 if (size > 0) { 194 count = td->td_retval[0]; 195 sp = buf; 196 while (count > 0 && error == 0) { 197 copy_statfs(sp, &stat32); 198 error = copyout(&stat32, uap->buf, sizeof(stat32)); 199 sp++; 200 uap->buf++; 201 count--; 202 } 203 free(buf, M_TEMP); 204 } 205 return (error); 206 } 207 #endif 208 209 int 210 freebsd32_sigaltstack(struct thread *td, 211 struct freebsd32_sigaltstack_args *uap) 212 { 213 struct sigaltstack32 s32; 214 struct sigaltstack ss, oss, *ssp; 215 int error; 216 217 if (uap->ss != NULL) { 218 error = copyin(uap->ss, &s32, sizeof(s32)); 219 if (error) 220 return (error); 221 PTRIN_CP(s32, ss, ss_sp); 222 CP(s32, ss, ss_size); 223 CP(s32, ss, ss_flags); 224 ssp = &ss; 225 } else 226 ssp = NULL; 227 error = kern_sigaltstack(td, ssp, &oss); 228 if (error == 0 && uap->oss != NULL) { 229 PTROUT_CP(oss, s32, ss_sp); 230 CP(oss, s32, ss_size); 231 CP(oss, s32, ss_flags); 232 error = copyout(&s32, uap->oss, sizeof(s32)); 233 } 234 return (error); 235 } 236 237 /* 238 * Custom version of exec_copyin_args() so that we can translate 239 * the pointers. 240 */ 241 static int 242 freebsd32_exec_copyin_args(struct image_args *args, char *fname, 243 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 244 { 245 char *argp, *envp; 246 u_int32_t *p32, arg; 247 size_t length; 248 int error; 249 250 bzero(args, sizeof(*args)); 251 if (argv == NULL) 252 return (EFAULT); 253 254 /* 255 * Allocate temporary demand zeroed space for argument and 256 * environment strings 257 */ 258 args->buf = (char *) kmem_alloc_wait(exec_map, 259 PATH_MAX + ARG_MAX + MAXSHELLCMDLEN); 260 if (args->buf == NULL) 261 return (ENOMEM); 262 args->begin_argv = args->buf; 263 args->endp = args->begin_argv; 264 args->stringspace = ARG_MAX; 265 266 args->fname = args->buf + ARG_MAX; 267 268 /* 269 * Copy the file name. 270 */ 271 error = (segflg == UIO_SYSSPACE) ? 272 copystr(fname, args->fname, PATH_MAX, &length) : 273 copyinstr(fname, args->fname, PATH_MAX, &length); 274 if (error != 0) 275 goto err_exit; 276 277 /* 278 * extract arguments first 279 */ 280 p32 = argv; 281 for (;;) { 282 error = copyin(p32++, &arg, sizeof(arg)); 283 if (error) 284 goto err_exit; 285 if (arg == 0) 286 break; 287 argp = PTRIN(arg); 288 error = copyinstr(argp, args->endp, args->stringspace, &length); 289 if (error) { 290 if (error == ENAMETOOLONG) 291 error = E2BIG; 292 goto err_exit; 293 } 294 args->stringspace -= length; 295 args->endp += length; 296 args->argc++; 297 } 298 299 args->begin_envv = args->endp; 300 301 /* 302 * extract environment strings 303 */ 304 if (envv) { 305 p32 = envv; 306 for (;;) { 307 error = copyin(p32++, &arg, sizeof(arg)); 308 if (error) 309 goto err_exit; 310 if (arg == 0) 311 break; 312 envp = PTRIN(arg); 313 error = copyinstr(envp, args->endp, args->stringspace, 314 &length); 315 if (error) { 316 if (error == ENAMETOOLONG) 317 error = E2BIG; 318 goto err_exit; 319 } 320 args->stringspace -= length; 321 args->endp += length; 322 args->envc++; 323 } 324 } 325 326 return (0); 327 328 err_exit: 329 kmem_free_wakeup(exec_map, (vm_offset_t)args->buf, 330 PATH_MAX + ARG_MAX + MAXSHELLCMDLEN); 331 args->buf = NULL; 332 return (error); 333 } 334 335 int 336 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 337 { 338 struct image_args eargs; 339 int error; 340 341 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 342 uap->argv, uap->envv); 343 if (error == 0) 344 error = kern_execve(td, &eargs, NULL); 345 return (error); 346 } 347 348 #ifdef __ia64__ 349 static int 350 freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 351 int prot, int fd, off_t pos) 352 { 353 vm_map_t map; 354 vm_map_entry_t entry; 355 int rv; 356 357 map = &td->td_proc->p_vmspace->vm_map; 358 if (fd != -1) 359 prot |= VM_PROT_WRITE; 360 361 if (vm_map_lookup_entry(map, start, &entry)) { 362 if ((entry->protection & prot) != prot) { 363 rv = vm_map_protect(map, 364 trunc_page(start), 365 round_page(end), 366 entry->protection | prot, 367 FALSE); 368 if (rv != KERN_SUCCESS) 369 return (EINVAL); 370 } 371 } else { 372 vm_offset_t addr = trunc_page(start); 373 rv = vm_map_find(map, 0, 0, 374 &addr, PAGE_SIZE, FALSE, prot, 375 VM_PROT_ALL, 0); 376 if (rv != KERN_SUCCESS) 377 return (EINVAL); 378 } 379 380 if (fd != -1) { 381 struct pread_args r; 382 r.fd = fd; 383 r.buf = (void *) start; 384 r.nbyte = end - start; 385 r.offset = pos; 386 return (pread(td, &r)); 387 } else { 388 while (start < end) { 389 subyte((void *) start, 0); 390 start++; 391 } 392 return (0); 393 } 394 } 395 #endif 396 397 int 398 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 399 { 400 struct mmap_args ap; 401 vm_offset_t addr = (vm_offset_t) uap->addr; 402 vm_size_t len = uap->len; 403 int prot = uap->prot; 404 int flags = uap->flags; 405 int fd = uap->fd; 406 off_t pos = (uap->poslo 407 | ((off_t)uap->poshi << 32)); 408 #ifdef __ia64__ 409 vm_size_t pageoff; 410 int error; 411 412 /* 413 * Attempt to handle page size hassles. 414 */ 415 pageoff = (pos & PAGE_MASK); 416 if (flags & MAP_FIXED) { 417 vm_offset_t start, end; 418 start = addr; 419 end = addr + len; 420 421 if (start != trunc_page(start)) { 422 error = freebsd32_mmap_partial(td, start, 423 round_page(start), prot, 424 fd, pos); 425 if (fd != -1) 426 pos += round_page(start) - start; 427 start = round_page(start); 428 } 429 if (end != round_page(end)) { 430 vm_offset_t t = trunc_page(end); 431 error = freebsd32_mmap_partial(td, t, end, 432 prot, fd, 433 pos + t - start); 434 end = trunc_page(end); 435 } 436 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 437 /* 438 * We can't map this region at all. The specified 439 * address doesn't have the same alignment as the file 440 * position. Fake the mapping by simply reading the 441 * entire region into memory. First we need to make 442 * sure the region exists. 443 */ 444 vm_map_t map; 445 struct pread_args r; 446 int rv; 447 448 prot |= VM_PROT_WRITE; 449 map = &td->td_proc->p_vmspace->vm_map; 450 rv = vm_map_remove(map, start, end); 451 if (rv != KERN_SUCCESS) 452 return (EINVAL); 453 rv = vm_map_find(map, 0, 0, 454 &start, end - start, FALSE, 455 prot, VM_PROT_ALL, 0); 456 if (rv != KERN_SUCCESS) 457 return (EINVAL); 458 r.fd = fd; 459 r.buf = (void *) start; 460 r.nbyte = end - start; 461 r.offset = pos; 462 error = pread(td, &r); 463 if (error) 464 return (error); 465 466 td->td_retval[0] = addr; 467 return (0); 468 } 469 if (end == start) { 470 /* 471 * After dealing with the ragged ends, there 472 * might be none left. 473 */ 474 td->td_retval[0] = addr; 475 return (0); 476 } 477 addr = start; 478 len = end - start; 479 } 480 #endif 481 482 ap.addr = (void *) addr; 483 ap.len = len; 484 ap.prot = prot; 485 ap.flags = flags; 486 ap.fd = fd; 487 ap.pos = pos; 488 489 return (mmap(td, &ap)); 490 } 491 492 #ifdef COMPAT_FREEBSD6 493 int 494 freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 495 { 496 struct freebsd32_mmap_args ap; 497 498 ap.addr = uap->addr; 499 ap.len = uap->len; 500 ap.prot = uap->prot; 501 ap.flags = uap->flags; 502 ap.fd = uap->fd; 503 ap.poslo = uap->poslo; 504 ap.poshi = uap->poshi; 505 506 return (freebsd32_mmap(td, &ap)); 507 } 508 #endif 509 510 int 511 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 512 { 513 struct itimerval itv, oitv, *itvp; 514 struct itimerval32 i32; 515 int error; 516 517 if (uap->itv != NULL) { 518 error = copyin(uap->itv, &i32, sizeof(i32)); 519 if (error) 520 return (error); 521 TV_CP(i32, itv, it_interval); 522 TV_CP(i32, itv, it_value); 523 itvp = &itv; 524 } else 525 itvp = NULL; 526 error = kern_setitimer(td, uap->which, itvp, &oitv); 527 if (error || uap->oitv == NULL) 528 return (error); 529 TV_CP(oitv, i32, it_interval); 530 TV_CP(oitv, i32, it_value); 531 return (copyout(&i32, uap->oitv, sizeof(i32))); 532 } 533 534 int 535 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 536 { 537 struct itimerval itv; 538 struct itimerval32 i32; 539 int error; 540 541 error = kern_getitimer(td, uap->which, &itv); 542 if (error || uap->itv == NULL) 543 return (error); 544 TV_CP(itv, i32, it_interval); 545 TV_CP(itv, i32, it_value); 546 return (copyout(&i32, uap->itv, sizeof(i32))); 547 } 548 549 int 550 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 551 { 552 struct timeval32 tv32; 553 struct timeval tv, *tvp; 554 int error; 555 556 if (uap->tv != NULL) { 557 error = copyin(uap->tv, &tv32, sizeof(tv32)); 558 if (error) 559 return (error); 560 CP(tv32, tv, tv_sec); 561 CP(tv32, tv, tv_usec); 562 tvp = &tv; 563 } else 564 tvp = NULL; 565 /* 566 * XXX big-endian needs to convert the fd_sets too. 567 * XXX Do pointers need PTRIN()? 568 */ 569 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp)); 570 } 571 572 /* 573 * Copy 'count' items into the destination list pointed to by uap->eventlist. 574 */ 575 static int 576 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 577 { 578 struct freebsd32_kevent_args *uap; 579 struct kevent32 ks32[KQ_NEVENTS]; 580 int i, error = 0; 581 582 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 583 uap = (struct freebsd32_kevent_args *)arg; 584 585 for (i = 0; i < count; i++) { 586 CP(kevp[i], ks32[i], ident); 587 CP(kevp[i], ks32[i], filter); 588 CP(kevp[i], ks32[i], flags); 589 CP(kevp[i], ks32[i], fflags); 590 CP(kevp[i], ks32[i], data); 591 PTROUT_CP(kevp[i], ks32[i], udata); 592 } 593 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 594 if (error == 0) 595 uap->eventlist += count; 596 return (error); 597 } 598 599 /* 600 * Copy 'count' items from the list pointed to by uap->changelist. 601 */ 602 static int 603 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 604 { 605 struct freebsd32_kevent_args *uap; 606 struct kevent32 ks32[KQ_NEVENTS]; 607 int i, error = 0; 608 609 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 610 uap = (struct freebsd32_kevent_args *)arg; 611 612 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 613 if (error) 614 goto done; 615 uap->changelist += count; 616 617 for (i = 0; i < count; i++) { 618 CP(ks32[i], kevp[i], ident); 619 CP(ks32[i], kevp[i], filter); 620 CP(ks32[i], kevp[i], flags); 621 CP(ks32[i], kevp[i], fflags); 622 CP(ks32[i], kevp[i], data); 623 PTRIN_CP(ks32[i], kevp[i], udata); 624 } 625 done: 626 return (error); 627 } 628 629 int 630 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 631 { 632 struct timespec32 ts32; 633 struct timespec ts, *tsp; 634 struct kevent_copyops k_ops = { uap, 635 freebsd32_kevent_copyout, 636 freebsd32_kevent_copyin}; 637 int error; 638 639 640 if (uap->timeout) { 641 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 642 if (error) 643 return (error); 644 CP(ts32, ts, tv_sec); 645 CP(ts32, ts, tv_nsec); 646 tsp = &ts; 647 } else 648 tsp = NULL; 649 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 650 &k_ops, tsp); 651 return (error); 652 } 653 654 int 655 freebsd32_gettimeofday(struct thread *td, 656 struct freebsd32_gettimeofday_args *uap) 657 { 658 struct timeval atv; 659 struct timeval32 atv32; 660 struct timezone rtz; 661 int error = 0; 662 663 if (uap->tp) { 664 microtime(&atv); 665 CP(atv, atv32, tv_sec); 666 CP(atv, atv32, tv_usec); 667 error = copyout(&atv32, uap->tp, sizeof (atv32)); 668 } 669 if (error == 0 && uap->tzp != NULL) { 670 rtz.tz_minuteswest = tz_minuteswest; 671 rtz.tz_dsttime = tz_dsttime; 672 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 673 } 674 return (error); 675 } 676 677 int 678 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 679 { 680 struct rusage32 s32; 681 struct rusage s; 682 int error; 683 684 error = kern_getrusage(td, uap->who, &s); 685 if (error) 686 return (error); 687 if (uap->rusage != NULL) { 688 TV_CP(s, s32, ru_utime); 689 TV_CP(s, s32, ru_stime); 690 CP(s, s32, ru_maxrss); 691 CP(s, s32, ru_ixrss); 692 CP(s, s32, ru_idrss); 693 CP(s, s32, ru_isrss); 694 CP(s, s32, ru_minflt); 695 CP(s, s32, ru_majflt); 696 CP(s, s32, ru_nswap); 697 CP(s, s32, ru_inblock); 698 CP(s, s32, ru_oublock); 699 CP(s, s32, ru_msgsnd); 700 CP(s, s32, ru_msgrcv); 701 CP(s, s32, ru_nsignals); 702 CP(s, s32, ru_nvcsw); 703 CP(s, s32, ru_nivcsw); 704 error = copyout(&s32, uap->rusage, sizeof(s32)); 705 } 706 return (error); 707 } 708 709 static int 710 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 711 { 712 struct iovec32 iov32; 713 struct iovec *iov; 714 struct uio *uio; 715 u_int iovlen; 716 int error, i; 717 718 *uiop = NULL; 719 if (iovcnt > UIO_MAXIOV) 720 return (EINVAL); 721 iovlen = iovcnt * sizeof(struct iovec); 722 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 723 iov = (struct iovec *)(uio + 1); 724 for (i = 0; i < iovcnt; i++) { 725 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 726 if (error) { 727 free(uio, M_IOV); 728 return (error); 729 } 730 iov[i].iov_base = PTRIN(iov32.iov_base); 731 iov[i].iov_len = iov32.iov_len; 732 } 733 uio->uio_iov = iov; 734 uio->uio_iovcnt = iovcnt; 735 uio->uio_segflg = UIO_USERSPACE; 736 uio->uio_offset = -1; 737 uio->uio_resid = 0; 738 for (i = 0; i < iovcnt; i++) { 739 if (iov->iov_len > INT_MAX - uio->uio_resid) { 740 free(uio, M_IOV); 741 return (EINVAL); 742 } 743 uio->uio_resid += iov->iov_len; 744 iov++; 745 } 746 *uiop = uio; 747 return (0); 748 } 749 750 int 751 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 752 { 753 struct uio *auio; 754 int error; 755 756 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 757 if (error) 758 return (error); 759 error = kern_readv(td, uap->fd, auio); 760 free(auio, M_IOV); 761 return (error); 762 } 763 764 int 765 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 766 { 767 struct uio *auio; 768 int error; 769 770 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 771 if (error) 772 return (error); 773 error = kern_writev(td, uap->fd, auio); 774 free(auio, M_IOV); 775 return (error); 776 } 777 778 int 779 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 780 { 781 struct uio *auio; 782 int error; 783 784 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 785 if (error) 786 return (error); 787 error = kern_preadv(td, uap->fd, auio, uap->offset); 788 free(auio, M_IOV); 789 return (error); 790 } 791 792 int 793 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 794 { 795 struct uio *auio; 796 int error; 797 798 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 799 if (error) 800 return (error); 801 error = kern_pwritev(td, uap->fd, auio, uap->offset); 802 free(auio, M_IOV); 803 return (error); 804 } 805 806 static int 807 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 808 int error) 809 { 810 struct iovec32 iov32; 811 struct iovec *iov; 812 u_int iovlen; 813 int i; 814 815 *iovp = NULL; 816 if (iovcnt > UIO_MAXIOV) 817 return (error); 818 iovlen = iovcnt * sizeof(struct iovec); 819 iov = malloc(iovlen, M_IOV, M_WAITOK); 820 for (i = 0; i < iovcnt; i++) { 821 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 822 if (error) { 823 free(iov, M_IOV); 824 return (error); 825 } 826 iov[i].iov_base = PTRIN(iov32.iov_base); 827 iov[i].iov_len = iov32.iov_len; 828 } 829 *iovp = iov; 830 return (0); 831 } 832 833 static int 834 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 835 { 836 struct msghdr32 m32; 837 int error; 838 839 error = copyin(msg32, &m32, sizeof(m32)); 840 if (error) 841 return (error); 842 msg->msg_name = PTRIN(m32.msg_name); 843 msg->msg_namelen = m32.msg_namelen; 844 msg->msg_iov = PTRIN(m32.msg_iov); 845 msg->msg_iovlen = m32.msg_iovlen; 846 msg->msg_control = PTRIN(m32.msg_control); 847 msg->msg_controllen = m32.msg_controllen; 848 msg->msg_flags = m32.msg_flags; 849 return (0); 850 } 851 852 static int 853 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 854 { 855 struct msghdr32 m32; 856 int error; 857 858 m32.msg_name = PTROUT(msg->msg_name); 859 m32.msg_namelen = msg->msg_namelen; 860 m32.msg_iov = PTROUT(msg->msg_iov); 861 m32.msg_iovlen = msg->msg_iovlen; 862 m32.msg_control = PTROUT(msg->msg_control); 863 m32.msg_controllen = msg->msg_controllen; 864 m32.msg_flags = msg->msg_flags; 865 error = copyout(&m32, msg32, sizeof(m32)); 866 return (error); 867 } 868 869 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 870 #define FREEBSD32_ALIGN(p) \ 871 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 872 #define FREEBSD32_CMSG_SPACE(l) \ 873 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 874 875 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 876 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 877 static int 878 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 879 { 880 struct cmsghdr *cm; 881 void *data; 882 socklen_t clen, datalen; 883 int error; 884 caddr_t ctlbuf; 885 int len, maxlen, copylen; 886 struct mbuf *m; 887 error = 0; 888 889 len = msg->msg_controllen; 890 maxlen = msg->msg_controllen; 891 msg->msg_controllen = 0; 892 893 m = control; 894 ctlbuf = msg->msg_control; 895 896 while (m && len > 0) { 897 cm = mtod(m, struct cmsghdr *); 898 clen = m->m_len; 899 900 while (cm != NULL) { 901 902 if (sizeof(struct cmsghdr) > clen || 903 cm->cmsg_len > clen) { 904 error = EINVAL; 905 break; 906 } 907 908 data = CMSG_DATA(cm); 909 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 910 911 /* Adjust message length */ 912 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 913 datalen; 914 915 916 /* Copy cmsghdr */ 917 copylen = sizeof(struct cmsghdr); 918 if (len < copylen) { 919 msg->msg_flags |= MSG_CTRUNC; 920 copylen = len; 921 } 922 923 error = copyout(cm,ctlbuf,copylen); 924 if (error) 925 goto exit; 926 927 ctlbuf += FREEBSD32_ALIGN(copylen); 928 len -= FREEBSD32_ALIGN(copylen); 929 930 if (len <= 0) 931 break; 932 933 /* Copy data */ 934 copylen = datalen; 935 if (len < copylen) { 936 msg->msg_flags |= MSG_CTRUNC; 937 copylen = len; 938 } 939 940 error = copyout(data,ctlbuf,copylen); 941 if (error) 942 goto exit; 943 944 ctlbuf += FREEBSD32_ALIGN(copylen); 945 len -= FREEBSD32_ALIGN(copylen); 946 947 if (CMSG_SPACE(datalen) < clen) { 948 clen -= CMSG_SPACE(datalen); 949 cm = (struct cmsghdr *) 950 ((caddr_t)cm + CMSG_SPACE(datalen)); 951 } else { 952 clen = 0; 953 cm = NULL; 954 } 955 } 956 m = m->m_next; 957 } 958 959 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 960 961 exit: 962 return (error); 963 964 } 965 966 int 967 freebsd32_recvmsg(td, uap) 968 struct thread *td; 969 struct freebsd32_recvmsg_args /* { 970 int s; 971 struct msghdr32 *msg; 972 int flags; 973 } */ *uap; 974 { 975 struct msghdr msg; 976 struct msghdr32 m32; 977 struct iovec *uiov, *iov; 978 struct mbuf *control = NULL; 979 struct mbuf **controlp; 980 981 int error; 982 error = copyin(uap->msg, &m32, sizeof(m32)); 983 if (error) 984 return (error); 985 error = freebsd32_copyinmsghdr(uap->msg, &msg); 986 if (error) 987 return (error); 988 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 989 EMSGSIZE); 990 if (error) 991 return (error); 992 msg.msg_flags = uap->flags; 993 uiov = msg.msg_iov; 994 msg.msg_iov = iov; 995 996 controlp = (msg.msg_control != NULL) ? &control : NULL; 997 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 998 if (error == 0) { 999 msg.msg_iov = uiov; 1000 1001 if (control != NULL) 1002 error = freebsd32_copy_msg_out(&msg, control); 1003 1004 if (error == 0) 1005 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1006 } 1007 free(iov, M_IOV); 1008 1009 if (control != NULL) 1010 m_freem(control); 1011 1012 return (error); 1013 } 1014 1015 1016 static int 1017 freebsd32_convert_msg_in(struct mbuf **controlp) 1018 { 1019 struct mbuf *control = *controlp; 1020 struct cmsghdr *cm = mtod(control, struct cmsghdr *); 1021 void *data; 1022 socklen_t clen = control->m_len, datalen; 1023 int error; 1024 1025 error = 0; 1026 *controlp = NULL; 1027 1028 while (cm != NULL) { 1029 if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) { 1030 error = EINVAL; 1031 break; 1032 } 1033 1034 data = FREEBSD32_CMSG_DATA(cm); 1035 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1036 1037 *controlp = sbcreatecontrol(data, datalen, cm->cmsg_type, 1038 cm->cmsg_level); 1039 controlp = &(*controlp)->m_next; 1040 1041 if (FREEBSD32_CMSG_SPACE(datalen) < clen) { 1042 clen -= FREEBSD32_CMSG_SPACE(datalen); 1043 cm = (struct cmsghdr *) 1044 ((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen)); 1045 } else { 1046 clen = 0; 1047 cm = NULL; 1048 } 1049 } 1050 1051 m_freem(control); 1052 return (error); 1053 } 1054 1055 1056 int 1057 freebsd32_sendmsg(struct thread *td, 1058 struct freebsd32_sendmsg_args *uap) 1059 { 1060 struct msghdr msg; 1061 struct msghdr32 m32; 1062 struct iovec *iov; 1063 struct mbuf *control = NULL; 1064 struct sockaddr *to = NULL; 1065 int error; 1066 1067 error = copyin(uap->msg, &m32, sizeof(m32)); 1068 if (error) 1069 return (error); 1070 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1071 if (error) 1072 return (error); 1073 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1074 EMSGSIZE); 1075 if (error) 1076 return (error); 1077 msg.msg_iov = iov; 1078 if (msg.msg_name != NULL) { 1079 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1080 if (error) { 1081 to = NULL; 1082 goto out; 1083 } 1084 msg.msg_name = to; 1085 } 1086 1087 if (msg.msg_control) { 1088 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1089 error = EINVAL; 1090 goto out; 1091 } 1092 1093 error = sockargs(&control, msg.msg_control, 1094 msg.msg_controllen, MT_CONTROL); 1095 if (error) 1096 goto out; 1097 1098 error = freebsd32_convert_msg_in(&control); 1099 if (error) 1100 goto out; 1101 } 1102 1103 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1104 UIO_USERSPACE); 1105 1106 out: 1107 free(iov, M_IOV); 1108 if (to) 1109 free(to, M_SONAME); 1110 return (error); 1111 } 1112 1113 int 1114 freebsd32_recvfrom(struct thread *td, 1115 struct freebsd32_recvfrom_args *uap) 1116 { 1117 struct msghdr msg; 1118 struct iovec aiov; 1119 int error; 1120 1121 if (uap->fromlenaddr) { 1122 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1123 sizeof(msg.msg_namelen)); 1124 if (error) 1125 return (error); 1126 } else { 1127 msg.msg_namelen = 0; 1128 } 1129 1130 msg.msg_name = PTRIN(uap->from); 1131 msg.msg_iov = &aiov; 1132 msg.msg_iovlen = 1; 1133 aiov.iov_base = PTRIN(uap->buf); 1134 aiov.iov_len = uap->len; 1135 msg.msg_control = NULL; 1136 msg.msg_flags = uap->flags; 1137 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1138 if (error == 0 && uap->fromlenaddr) 1139 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1140 sizeof (msg.msg_namelen)); 1141 return (error); 1142 } 1143 1144 int 1145 freebsd32_settimeofday(struct thread *td, 1146 struct freebsd32_settimeofday_args *uap) 1147 { 1148 struct timeval32 tv32; 1149 struct timeval tv, *tvp; 1150 struct timezone tz, *tzp; 1151 int error; 1152 1153 if (uap->tv) { 1154 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1155 if (error) 1156 return (error); 1157 CP(tv32, tv, tv_sec); 1158 CP(tv32, tv, tv_usec); 1159 tvp = &tv; 1160 } else 1161 tvp = NULL; 1162 if (uap->tzp) { 1163 error = copyin(uap->tzp, &tz, sizeof(tz)); 1164 if (error) 1165 return (error); 1166 tzp = &tz; 1167 } else 1168 tzp = NULL; 1169 return (kern_settimeofday(td, tvp, tzp)); 1170 } 1171 1172 int 1173 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1174 { 1175 struct timeval32 s32[2]; 1176 struct timeval s[2], *sp; 1177 int error; 1178 1179 if (uap->tptr != NULL) { 1180 error = copyin(uap->tptr, s32, sizeof(s32)); 1181 if (error) 1182 return (error); 1183 CP(s32[0], s[0], tv_sec); 1184 CP(s32[0], s[0], tv_usec); 1185 CP(s32[1], s[1], tv_sec); 1186 CP(s32[1], s[1], tv_usec); 1187 sp = s; 1188 } else 1189 sp = NULL; 1190 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1191 } 1192 1193 int 1194 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1195 { 1196 struct timeval32 s32[2]; 1197 struct timeval s[2], *sp; 1198 int error; 1199 1200 if (uap->tptr != NULL) { 1201 error = copyin(uap->tptr, s32, sizeof(s32)); 1202 if (error) 1203 return (error); 1204 CP(s32[0], s[0], tv_sec); 1205 CP(s32[0], s[0], tv_usec); 1206 CP(s32[1], s[1], tv_sec); 1207 CP(s32[1], s[1], tv_usec); 1208 sp = s; 1209 } else 1210 sp = NULL; 1211 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1212 } 1213 1214 int 1215 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1216 { 1217 struct timeval32 s32[2]; 1218 struct timeval s[2], *sp; 1219 int error; 1220 1221 if (uap->tptr != NULL) { 1222 error = copyin(uap->tptr, s32, sizeof(s32)); 1223 if (error) 1224 return (error); 1225 CP(s32[0], s[0], tv_sec); 1226 CP(s32[0], s[0], tv_usec); 1227 CP(s32[1], s[1], tv_sec); 1228 CP(s32[1], s[1], tv_usec); 1229 sp = s; 1230 } else 1231 sp = NULL; 1232 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1233 } 1234 1235 1236 int 1237 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1238 { 1239 struct timeval32 tv32; 1240 struct timeval delta, olddelta, *deltap; 1241 int error; 1242 1243 if (uap->delta) { 1244 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1245 if (error) 1246 return (error); 1247 CP(tv32, delta, tv_sec); 1248 CP(tv32, delta, tv_usec); 1249 deltap = δ 1250 } else 1251 deltap = NULL; 1252 error = kern_adjtime(td, deltap, &olddelta); 1253 if (uap->olddelta && error == 0) { 1254 CP(olddelta, tv32, tv_sec); 1255 CP(olddelta, tv32, tv_usec); 1256 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1257 } 1258 return (error); 1259 } 1260 1261 #ifdef COMPAT_FREEBSD4 1262 int 1263 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1264 { 1265 struct statfs32 s32; 1266 struct statfs s; 1267 int error; 1268 1269 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1270 if (error) 1271 return (error); 1272 copy_statfs(&s, &s32); 1273 return (copyout(&s32, uap->buf, sizeof(s32))); 1274 } 1275 #endif 1276 1277 #ifdef COMPAT_FREEBSD4 1278 int 1279 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1280 { 1281 struct statfs32 s32; 1282 struct statfs s; 1283 int error; 1284 1285 error = kern_fstatfs(td, uap->fd, &s); 1286 if (error) 1287 return (error); 1288 copy_statfs(&s, &s32); 1289 return (copyout(&s32, uap->buf, sizeof(s32))); 1290 } 1291 #endif 1292 1293 #ifdef COMPAT_FREEBSD4 1294 int 1295 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1296 { 1297 struct statfs32 s32; 1298 struct statfs s; 1299 fhandle_t fh; 1300 int error; 1301 1302 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1303 return (error); 1304 error = kern_fhstatfs(td, fh, &s); 1305 if (error) 1306 return (error); 1307 copy_statfs(&s, &s32); 1308 return (copyout(&s32, uap->buf, sizeof(s32))); 1309 } 1310 #endif 1311 1312 static void 1313 freebsd32_ipcperm_in(struct ipc_perm32 *ip32, struct ipc_perm *ip) 1314 { 1315 1316 CP(*ip32, *ip, cuid); 1317 CP(*ip32, *ip, cgid); 1318 CP(*ip32, *ip, uid); 1319 CP(*ip32, *ip, gid); 1320 CP(*ip32, *ip, mode); 1321 CP(*ip32, *ip, seq); 1322 CP(*ip32, *ip, key); 1323 } 1324 1325 static void 1326 freebsd32_ipcperm_out(struct ipc_perm *ip, struct ipc_perm32 *ip32) 1327 { 1328 1329 CP(*ip, *ip32, cuid); 1330 CP(*ip, *ip32, cgid); 1331 CP(*ip, *ip32, uid); 1332 CP(*ip, *ip32, gid); 1333 CP(*ip, *ip32, mode); 1334 CP(*ip, *ip32, seq); 1335 CP(*ip, *ip32, key); 1336 } 1337 1338 int 1339 freebsd32_semsys(struct thread *td, struct freebsd32_semsys_args *uap) 1340 { 1341 1342 switch (uap->which) { 1343 case 0: 1344 return (freebsd32_semctl(td, 1345 (struct freebsd32_semctl_args *)&uap->a2)); 1346 default: 1347 return (semsys(td, (struct semsys_args *)uap)); 1348 } 1349 } 1350 1351 int 1352 freebsd32_semctl(struct thread *td, struct freebsd32_semctl_args *uap) 1353 { 1354 struct semid_ds32 dsbuf32; 1355 struct semid_ds dsbuf; 1356 union semun semun; 1357 union semun32 arg; 1358 register_t rval; 1359 int error; 1360 1361 switch (uap->cmd) { 1362 case SEM_STAT: 1363 case IPC_SET: 1364 case IPC_STAT: 1365 case GETALL: 1366 case SETVAL: 1367 case SETALL: 1368 error = copyin(uap->arg, &arg, sizeof(arg)); 1369 if (error) 1370 return (error); 1371 break; 1372 } 1373 1374 switch (uap->cmd) { 1375 case SEM_STAT: 1376 case IPC_STAT: 1377 semun.buf = &dsbuf; 1378 break; 1379 case IPC_SET: 1380 error = copyin(PTRIN(arg.buf), &dsbuf32, sizeof(dsbuf32)); 1381 if (error) 1382 return (error); 1383 freebsd32_ipcperm_in(&dsbuf32.sem_perm, &dsbuf.sem_perm); 1384 PTRIN_CP(dsbuf32, dsbuf, sem_base); 1385 CP(dsbuf32, dsbuf, sem_nsems); 1386 CP(dsbuf32, dsbuf, sem_otime); 1387 CP(dsbuf32, dsbuf, sem_pad1); 1388 CP(dsbuf32, dsbuf, sem_ctime); 1389 CP(dsbuf32, dsbuf, sem_pad2); 1390 CP(dsbuf32, dsbuf, sem_pad3[0]); 1391 CP(dsbuf32, dsbuf, sem_pad3[1]); 1392 CP(dsbuf32, dsbuf, sem_pad3[2]); 1393 CP(dsbuf32, dsbuf, sem_pad3[3]); 1394 semun.buf = &dsbuf; 1395 break; 1396 case GETALL: 1397 case SETALL: 1398 semun.array = PTRIN(arg.array); 1399 break; 1400 case SETVAL: 1401 semun.val = arg.val; 1402 break; 1403 } 1404 1405 error = kern_semctl(td, uap->semid, uap->semnum, uap->cmd, &semun, 1406 &rval); 1407 if (error) 1408 return (error); 1409 1410 switch (uap->cmd) { 1411 case SEM_STAT: 1412 case IPC_STAT: 1413 freebsd32_ipcperm_out(&dsbuf.sem_perm, &dsbuf32.sem_perm); 1414 PTROUT_CP(dsbuf, dsbuf32, sem_base); 1415 CP(dsbuf, dsbuf32, sem_nsems); 1416 CP(dsbuf, dsbuf32, sem_otime); 1417 CP(dsbuf, dsbuf32, sem_pad1); 1418 CP(dsbuf, dsbuf32, sem_ctime); 1419 CP(dsbuf, dsbuf32, sem_pad2); 1420 CP(dsbuf, dsbuf32, sem_pad3[0]); 1421 CP(dsbuf, dsbuf32, sem_pad3[1]); 1422 CP(dsbuf, dsbuf32, sem_pad3[2]); 1423 CP(dsbuf, dsbuf32, sem_pad3[3]); 1424 error = copyout(&dsbuf32, PTRIN(arg.buf), sizeof(dsbuf32)); 1425 break; 1426 } 1427 1428 if (error == 0) 1429 td->td_retval[0] = rval; 1430 return (error); 1431 } 1432 1433 int 1434 freebsd32_msgsys(struct thread *td, struct freebsd32_msgsys_args *uap) 1435 { 1436 1437 switch (uap->which) { 1438 case 0: 1439 return (freebsd32_msgctl(td, 1440 (struct freebsd32_msgctl_args *)&uap->a2)); 1441 case 2: 1442 return (freebsd32_msgsnd(td, 1443 (struct freebsd32_msgsnd_args *)&uap->a2)); 1444 case 3: 1445 return (freebsd32_msgrcv(td, 1446 (struct freebsd32_msgrcv_args *)&uap->a2)); 1447 default: 1448 return (msgsys(td, (struct msgsys_args *)uap)); 1449 } 1450 } 1451 1452 int 1453 freebsd32_msgctl(struct thread *td, struct freebsd32_msgctl_args *uap) 1454 { 1455 struct msqid_ds msqbuf; 1456 struct msqid_ds32 msqbuf32; 1457 int error; 1458 1459 if (uap->cmd == IPC_SET) { 1460 error = copyin(uap->buf, &msqbuf32, sizeof(msqbuf32)); 1461 if (error) 1462 return (error); 1463 freebsd32_ipcperm_in(&msqbuf32.msg_perm, &msqbuf.msg_perm); 1464 PTRIN_CP(msqbuf32, msqbuf, msg_first); 1465 PTRIN_CP(msqbuf32, msqbuf, msg_last); 1466 CP(msqbuf32, msqbuf, msg_cbytes); 1467 CP(msqbuf32, msqbuf, msg_qnum); 1468 CP(msqbuf32, msqbuf, msg_qbytes); 1469 CP(msqbuf32, msqbuf, msg_lspid); 1470 CP(msqbuf32, msqbuf, msg_lrpid); 1471 CP(msqbuf32, msqbuf, msg_stime); 1472 CP(msqbuf32, msqbuf, msg_pad1); 1473 CP(msqbuf32, msqbuf, msg_rtime); 1474 CP(msqbuf32, msqbuf, msg_pad2); 1475 CP(msqbuf32, msqbuf, msg_ctime); 1476 CP(msqbuf32, msqbuf, msg_pad3); 1477 CP(msqbuf32, msqbuf, msg_pad4[0]); 1478 CP(msqbuf32, msqbuf, msg_pad4[1]); 1479 CP(msqbuf32, msqbuf, msg_pad4[2]); 1480 CP(msqbuf32, msqbuf, msg_pad4[3]); 1481 } 1482 error = kern_msgctl(td, uap->msqid, uap->cmd, &msqbuf); 1483 if (error) 1484 return (error); 1485 if (uap->cmd == IPC_STAT) { 1486 freebsd32_ipcperm_out(&msqbuf.msg_perm, &msqbuf32.msg_perm); 1487 PTROUT_CP(msqbuf, msqbuf32, msg_first); 1488 PTROUT_CP(msqbuf, msqbuf32, msg_last); 1489 CP(msqbuf, msqbuf32, msg_cbytes); 1490 CP(msqbuf, msqbuf32, msg_qnum); 1491 CP(msqbuf, msqbuf32, msg_qbytes); 1492 CP(msqbuf, msqbuf32, msg_lspid); 1493 CP(msqbuf, msqbuf32, msg_lrpid); 1494 CP(msqbuf, msqbuf32, msg_stime); 1495 CP(msqbuf, msqbuf32, msg_pad1); 1496 CP(msqbuf, msqbuf32, msg_rtime); 1497 CP(msqbuf, msqbuf32, msg_pad2); 1498 CP(msqbuf, msqbuf32, msg_ctime); 1499 CP(msqbuf, msqbuf32, msg_pad3); 1500 CP(msqbuf, msqbuf32, msg_pad4[0]); 1501 CP(msqbuf, msqbuf32, msg_pad4[1]); 1502 CP(msqbuf, msqbuf32, msg_pad4[2]); 1503 CP(msqbuf, msqbuf32, msg_pad4[3]); 1504 error = copyout(&msqbuf32, uap->buf, sizeof(struct msqid_ds32)); 1505 } 1506 return (error); 1507 } 1508 1509 int 1510 freebsd32_msgsnd(struct thread *td, struct freebsd32_msgsnd_args *uap) 1511 { 1512 const void *msgp; 1513 long mtype; 1514 int32_t mtype32; 1515 int error; 1516 1517 msgp = PTRIN(uap->msgp); 1518 if ((error = copyin(msgp, &mtype32, sizeof(mtype32))) != 0) 1519 return (error); 1520 mtype = mtype32; 1521 return (kern_msgsnd(td, uap->msqid, 1522 (const char *)msgp + sizeof(mtype32), 1523 uap->msgsz, uap->msgflg, mtype)); 1524 } 1525 1526 int 1527 freebsd32_msgrcv(struct thread *td, struct freebsd32_msgrcv_args *uap) 1528 { 1529 void *msgp; 1530 long mtype; 1531 int32_t mtype32; 1532 int error; 1533 1534 msgp = PTRIN(uap->msgp); 1535 if ((error = kern_msgrcv(td, uap->msqid, 1536 (char *)msgp + sizeof(mtype32), uap->msgsz, 1537 uap->msgtyp, uap->msgflg, &mtype)) != 0) 1538 return (error); 1539 mtype32 = (int32_t)mtype; 1540 return (copyout(&mtype32, msgp, sizeof(mtype32))); 1541 } 1542 1543 int 1544 freebsd32_shmsys(struct thread *td, struct freebsd32_shmsys_args *uap) 1545 { 1546 1547 switch (uap->which) { 1548 case 0: { /* shmat */ 1549 struct shmat_args ap; 1550 1551 ap.shmid = uap->a2; 1552 ap.shmaddr = PTRIN(uap->a3); 1553 ap.shmflg = uap->a4; 1554 return (sysent[SYS_shmat].sy_call(td, &ap)); 1555 } 1556 case 2: { /* shmdt */ 1557 struct shmdt_args ap; 1558 1559 ap.shmaddr = PTRIN(uap->a2); 1560 return (sysent[SYS_shmdt].sy_call(td, &ap)); 1561 } 1562 case 3: { /* shmget */ 1563 struct shmget_args ap; 1564 1565 ap.key = uap->a2; 1566 ap.size = uap->a3; 1567 ap.shmflg = uap->a4; 1568 return (sysent[SYS_shmget].sy_call(td, &ap)); 1569 } 1570 case 4: { /* shmctl */ 1571 struct freebsd32_shmctl_args ap; 1572 1573 ap.shmid = uap->a2; 1574 ap.cmd = uap->a3; 1575 ap.buf = PTRIN(uap->a4); 1576 return (freebsd32_shmctl(td, &ap)); 1577 } 1578 case 1: /* oshmctl */ 1579 default: 1580 return (EINVAL); 1581 } 1582 } 1583 1584 int 1585 freebsd32_shmctl(struct thread *td, struct freebsd32_shmctl_args *uap) 1586 { 1587 int error = 0; 1588 union { 1589 struct shmid_ds shmid_ds; 1590 struct shm_info shm_info; 1591 struct shminfo shminfo; 1592 } u; 1593 union { 1594 struct shmid_ds32 shmid_ds32; 1595 struct shm_info32 shm_info32; 1596 struct shminfo32 shminfo32; 1597 } u32; 1598 size_t sz; 1599 1600 if (uap->cmd == IPC_SET) { 1601 if ((error = copyin(uap->buf, &u32.shmid_ds32, 1602 sizeof(u32.shmid_ds32)))) 1603 goto done; 1604 freebsd32_ipcperm_in(&u32.shmid_ds32.shm_perm, 1605 &u.shmid_ds.shm_perm); 1606 CP(u32.shmid_ds32, u.shmid_ds, shm_segsz); 1607 CP(u32.shmid_ds32, u.shmid_ds, shm_lpid); 1608 CP(u32.shmid_ds32, u.shmid_ds, shm_cpid); 1609 CP(u32.shmid_ds32, u.shmid_ds, shm_nattch); 1610 CP(u32.shmid_ds32, u.shmid_ds, shm_atime); 1611 CP(u32.shmid_ds32, u.shmid_ds, shm_dtime); 1612 CP(u32.shmid_ds32, u.shmid_ds, shm_ctime); 1613 PTRIN_CP(u32.shmid_ds32, u.shmid_ds, shm_internal); 1614 } 1615 1616 error = kern_shmctl(td, uap->shmid, uap->cmd, (void *)&u, &sz); 1617 if (error) 1618 goto done; 1619 1620 /* Cases in which we need to copyout */ 1621 switch (uap->cmd) { 1622 case IPC_INFO: 1623 CP(u.shminfo, u32.shminfo32, shmmax); 1624 CP(u.shminfo, u32.shminfo32, shmmin); 1625 CP(u.shminfo, u32.shminfo32, shmmni); 1626 CP(u.shminfo, u32.shminfo32, shmseg); 1627 CP(u.shminfo, u32.shminfo32, shmall); 1628 error = copyout(&u32.shminfo32, uap->buf, 1629 sizeof(u32.shminfo32)); 1630 break; 1631 case SHM_INFO: 1632 CP(u.shm_info, u32.shm_info32, used_ids); 1633 CP(u.shm_info, u32.shm_info32, shm_rss); 1634 CP(u.shm_info, u32.shm_info32, shm_tot); 1635 CP(u.shm_info, u32.shm_info32, shm_swp); 1636 CP(u.shm_info, u32.shm_info32, swap_attempts); 1637 CP(u.shm_info, u32.shm_info32, swap_successes); 1638 error = copyout(&u32.shm_info32, uap->buf, 1639 sizeof(u32.shm_info32)); 1640 break; 1641 case SHM_STAT: 1642 case IPC_STAT: 1643 freebsd32_ipcperm_out(&u.shmid_ds.shm_perm, 1644 &u32.shmid_ds32.shm_perm); 1645 CP(u.shmid_ds, u32.shmid_ds32, shm_segsz); 1646 CP(u.shmid_ds, u32.shmid_ds32, shm_lpid); 1647 CP(u.shmid_ds, u32.shmid_ds32, shm_cpid); 1648 CP(u.shmid_ds, u32.shmid_ds32, shm_nattch); 1649 CP(u.shmid_ds, u32.shmid_ds32, shm_atime); 1650 CP(u.shmid_ds, u32.shmid_ds32, shm_dtime); 1651 CP(u.shmid_ds, u32.shmid_ds32, shm_ctime); 1652 PTROUT_CP(u.shmid_ds, u32.shmid_ds32, shm_internal); 1653 error = copyout(&u32.shmid_ds32, uap->buf, 1654 sizeof(u32.shmid_ds32)); 1655 break; 1656 } 1657 1658 done: 1659 if (error) { 1660 /* Invalidate the return value */ 1661 td->td_retval[0] = -1; 1662 } 1663 return (error); 1664 } 1665 1666 int 1667 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1668 { 1669 struct pread_args ap; 1670 1671 ap.fd = uap->fd; 1672 ap.buf = uap->buf; 1673 ap.nbyte = uap->nbyte; 1674 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1675 return (pread(td, &ap)); 1676 } 1677 1678 int 1679 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1680 { 1681 struct pwrite_args ap; 1682 1683 ap.fd = uap->fd; 1684 ap.buf = uap->buf; 1685 ap.nbyte = uap->nbyte; 1686 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1687 return (pwrite(td, &ap)); 1688 } 1689 1690 int 1691 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1692 { 1693 int error; 1694 struct lseek_args ap; 1695 off_t pos; 1696 1697 ap.fd = uap->fd; 1698 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1699 ap.whence = uap->whence; 1700 error = lseek(td, &ap); 1701 /* Expand the quad return into two parts for eax and edx */ 1702 pos = *(off_t *)(td->td_retval); 1703 td->td_retval[0] = pos & 0xffffffff; /* %eax */ 1704 td->td_retval[1] = pos >> 32; /* %edx */ 1705 return error; 1706 } 1707 1708 int 1709 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1710 { 1711 struct truncate_args ap; 1712 1713 ap.path = uap->path; 1714 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1715 return (truncate(td, &ap)); 1716 } 1717 1718 int 1719 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1720 { 1721 struct ftruncate_args ap; 1722 1723 ap.fd = uap->fd; 1724 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1725 return (ftruncate(td, &ap)); 1726 } 1727 1728 int 1729 freebsd32_getdirentries(struct thread *td, 1730 struct freebsd32_getdirentries_args *uap) 1731 { 1732 long base; 1733 int32_t base32; 1734 int error; 1735 1736 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base); 1737 if (error) 1738 return (error); 1739 if (uap->basep != NULL) { 1740 base32 = base; 1741 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1742 } 1743 return (error); 1744 } 1745 1746 #ifdef COMPAT_FREEBSD6 1747 /* versions with the 'int pad' argument */ 1748 int 1749 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1750 { 1751 struct pread_args ap; 1752 1753 ap.fd = uap->fd; 1754 ap.buf = uap->buf; 1755 ap.nbyte = uap->nbyte; 1756 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1757 return (pread(td, &ap)); 1758 } 1759 1760 int 1761 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1762 { 1763 struct pwrite_args ap; 1764 1765 ap.fd = uap->fd; 1766 ap.buf = uap->buf; 1767 ap.nbyte = uap->nbyte; 1768 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1769 return (pwrite(td, &ap)); 1770 } 1771 1772 int 1773 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1774 { 1775 int error; 1776 struct lseek_args ap; 1777 off_t pos; 1778 1779 ap.fd = uap->fd; 1780 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1781 ap.whence = uap->whence; 1782 error = lseek(td, &ap); 1783 /* Expand the quad return into two parts for eax and edx */ 1784 pos = *(off_t *)(td->td_retval); 1785 td->td_retval[0] = pos & 0xffffffff; /* %eax */ 1786 td->td_retval[1] = pos >> 32; /* %edx */ 1787 return error; 1788 } 1789 1790 int 1791 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1792 { 1793 struct truncate_args ap; 1794 1795 ap.path = uap->path; 1796 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1797 return (truncate(td, &ap)); 1798 } 1799 1800 int 1801 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1802 { 1803 struct ftruncate_args ap; 1804 1805 ap.fd = uap->fd; 1806 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1807 return (ftruncate(td, &ap)); 1808 } 1809 #endif /* COMPAT_FREEBSD6 */ 1810 1811 struct sf_hdtr32 { 1812 uint32_t headers; 1813 int hdr_cnt; 1814 uint32_t trailers; 1815 int trl_cnt; 1816 }; 1817 1818 static int 1819 freebsd32_do_sendfile(struct thread *td, 1820 struct freebsd32_sendfile_args *uap, int compat) 1821 { 1822 struct sendfile_args ap; 1823 struct sf_hdtr32 hdtr32; 1824 struct sf_hdtr hdtr; 1825 struct uio *hdr_uio, *trl_uio; 1826 struct iovec32 *iov32; 1827 int error; 1828 1829 hdr_uio = trl_uio = NULL; 1830 1831 ap.fd = uap->fd; 1832 ap.s = uap->s; 1833 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1834 ap.nbytes = uap->nbytes; 1835 ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */ 1836 ap.sbytes = uap->sbytes; 1837 ap.flags = uap->flags; 1838 1839 if (uap->hdtr != NULL) { 1840 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1841 if (error) 1842 goto out; 1843 PTRIN_CP(hdtr32, hdtr, headers); 1844 CP(hdtr32, hdtr, hdr_cnt); 1845 PTRIN_CP(hdtr32, hdtr, trailers); 1846 CP(hdtr32, hdtr, trl_cnt); 1847 1848 if (hdtr.headers != NULL) { 1849 iov32 = PTRIN(hdtr32.headers); 1850 error = freebsd32_copyinuio(iov32, 1851 hdtr32.hdr_cnt, &hdr_uio); 1852 if (error) 1853 goto out; 1854 } 1855 if (hdtr.trailers != NULL) { 1856 iov32 = PTRIN(hdtr32.trailers); 1857 error = freebsd32_copyinuio(iov32, 1858 hdtr32.trl_cnt, &trl_uio); 1859 if (error) 1860 goto out; 1861 } 1862 } 1863 1864 error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat); 1865 out: 1866 if (hdr_uio) 1867 free(hdr_uio, M_IOV); 1868 if (trl_uio) 1869 free(trl_uio, M_IOV); 1870 return (error); 1871 } 1872 1873 #ifdef COMPAT_FREEBSD4 1874 int 1875 freebsd4_freebsd32_sendfile(struct thread *td, 1876 struct freebsd4_freebsd32_sendfile_args *uap) 1877 { 1878 return (freebsd32_do_sendfile(td, 1879 (struct freebsd32_sendfile_args *)uap, 1)); 1880 } 1881 #endif 1882 1883 int 1884 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1885 { 1886 1887 return (freebsd32_do_sendfile(td, uap, 0)); 1888 } 1889 1890 static void 1891 copy_stat( struct stat *in, struct stat32 *out) 1892 { 1893 CP(*in, *out, st_dev); 1894 CP(*in, *out, st_ino); 1895 CP(*in, *out, st_mode); 1896 CP(*in, *out, st_nlink); 1897 CP(*in, *out, st_uid); 1898 CP(*in, *out, st_gid); 1899 CP(*in, *out, st_rdev); 1900 TS_CP(*in, *out, st_atimespec); 1901 TS_CP(*in, *out, st_mtimespec); 1902 TS_CP(*in, *out, st_ctimespec); 1903 CP(*in, *out, st_size); 1904 CP(*in, *out, st_blocks); 1905 CP(*in, *out, st_blksize); 1906 CP(*in, *out, st_flags); 1907 CP(*in, *out, st_gen); 1908 } 1909 1910 int 1911 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1912 { 1913 struct stat sb; 1914 struct stat32 sb32; 1915 int error; 1916 1917 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1918 if (error) 1919 return (error); 1920 copy_stat(&sb, &sb32); 1921 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1922 return (error); 1923 } 1924 1925 int 1926 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1927 { 1928 struct stat ub; 1929 struct stat32 ub32; 1930 int error; 1931 1932 error = kern_fstat(td, uap->fd, &ub); 1933 if (error) 1934 return (error); 1935 copy_stat(&ub, &ub32); 1936 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1937 return (error); 1938 } 1939 1940 int 1941 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1942 { 1943 struct stat sb; 1944 struct stat32 sb32; 1945 int error; 1946 1947 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1948 if (error) 1949 return (error); 1950 copy_stat(&sb, &sb32); 1951 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1952 return (error); 1953 } 1954 1955 /* 1956 * MPSAFE 1957 */ 1958 int 1959 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1960 { 1961 int error, name[CTL_MAXNAME]; 1962 size_t j, oldlen; 1963 1964 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1965 return (EINVAL); 1966 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1967 if (error) 1968 return (error); 1969 if (uap->oldlenp) 1970 oldlen = fuword32(uap->oldlenp); 1971 else 1972 oldlen = 0; 1973 error = userland_sysctl(td, name, uap->namelen, 1974 uap->old, &oldlen, 1, 1975 uap->new, uap->newlen, &j, SCTL_MASK32); 1976 if (error && error != ENOMEM) 1977 return (error); 1978 if (uap->oldlenp) 1979 suword32(uap->oldlenp, j); 1980 return (0); 1981 } 1982 1983 int 1984 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1985 { 1986 uint32_t version; 1987 int error; 1988 struct jail j; 1989 1990 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1991 if (error) 1992 return (error); 1993 switch (version) { 1994 case 0: 1995 { 1996 /* FreeBSD single IPv4 jails. */ 1997 struct jail32_v0 j32_v0; 1998 1999 bzero(&j, sizeof(struct jail)); 2000 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 2001 if (error) 2002 return (error); 2003 CP(j32_v0, j, version); 2004 PTRIN_CP(j32_v0, j, path); 2005 PTRIN_CP(j32_v0, j, hostname); 2006 j.ip4s = j32_v0.ip_number; 2007 break; 2008 } 2009 2010 case 1: 2011 /* 2012 * Version 1 was used by multi-IPv4 jail implementations 2013 * that never made it into the official kernel. 2014 */ 2015 return (EINVAL); 2016 2017 case 2: /* JAIL_API_VERSION */ 2018 { 2019 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 2020 struct jail32 j32; 2021 2022 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 2023 if (error) 2024 return (error); 2025 CP(j32, j, version); 2026 PTRIN_CP(j32, j, path); 2027 PTRIN_CP(j32, j, hostname); 2028 PTRIN_CP(j32, j, jailname); 2029 CP(j32, j, ip4s); 2030 CP(j32, j, ip6s); 2031 PTRIN_CP(j32, j, ip4); 2032 PTRIN_CP(j32, j, ip6); 2033 break; 2034 } 2035 2036 default: 2037 /* Sci-Fi jails are not supported, sorry. */ 2038 return (EINVAL); 2039 } 2040 return (kern_jail(td, &j)); 2041 } 2042 2043 int 2044 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2045 { 2046 struct sigaction32 s32; 2047 struct sigaction sa, osa, *sap; 2048 int error; 2049 2050 if (uap->act) { 2051 error = copyin(uap->act, &s32, sizeof(s32)); 2052 if (error) 2053 return (error); 2054 sa.sa_handler = PTRIN(s32.sa_u); 2055 CP(s32, sa, sa_flags); 2056 CP(s32, sa, sa_mask); 2057 sap = &sa; 2058 } else 2059 sap = NULL; 2060 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2061 if (error == 0 && uap->oact != NULL) { 2062 s32.sa_u = PTROUT(osa.sa_handler); 2063 CP(osa, s32, sa_flags); 2064 CP(osa, s32, sa_mask); 2065 error = copyout(&s32, uap->oact, sizeof(s32)); 2066 } 2067 return (error); 2068 } 2069 2070 #ifdef COMPAT_FREEBSD4 2071 int 2072 freebsd4_freebsd32_sigaction(struct thread *td, 2073 struct freebsd4_freebsd32_sigaction_args *uap) 2074 { 2075 struct sigaction32 s32; 2076 struct sigaction sa, osa, *sap; 2077 int error; 2078 2079 if (uap->act) { 2080 error = copyin(uap->act, &s32, sizeof(s32)); 2081 if (error) 2082 return (error); 2083 sa.sa_handler = PTRIN(s32.sa_u); 2084 CP(s32, sa, sa_flags); 2085 CP(s32, sa, sa_mask); 2086 sap = &sa; 2087 } else 2088 sap = NULL; 2089 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2090 if (error == 0 && uap->oact != NULL) { 2091 s32.sa_u = PTROUT(osa.sa_handler); 2092 CP(osa, s32, sa_flags); 2093 CP(osa, s32, sa_mask); 2094 error = copyout(&s32, uap->oact, sizeof(s32)); 2095 } 2096 return (error); 2097 } 2098 #endif 2099 2100 #ifdef COMPAT_43 2101 struct osigaction32 { 2102 u_int32_t sa_u; 2103 osigset_t sa_mask; 2104 int sa_flags; 2105 }; 2106 2107 #define ONSIG 32 2108 2109 int 2110 ofreebsd32_sigaction(struct thread *td, 2111 struct ofreebsd32_sigaction_args *uap) 2112 { 2113 struct osigaction32 s32; 2114 struct sigaction sa, osa, *sap; 2115 int error; 2116 2117 if (uap->signum <= 0 || uap->signum >= ONSIG) 2118 return (EINVAL); 2119 2120 if (uap->nsa) { 2121 error = copyin(uap->nsa, &s32, sizeof(s32)); 2122 if (error) 2123 return (error); 2124 sa.sa_handler = PTRIN(s32.sa_u); 2125 CP(s32, sa, sa_flags); 2126 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2127 sap = &sa; 2128 } else 2129 sap = NULL; 2130 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2131 if (error == 0 && uap->osa != NULL) { 2132 s32.sa_u = PTROUT(osa.sa_handler); 2133 CP(osa, s32, sa_flags); 2134 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2135 error = copyout(&s32, uap->osa, sizeof(s32)); 2136 } 2137 return (error); 2138 } 2139 2140 int 2141 ofreebsd32_sigprocmask(struct thread *td, 2142 struct ofreebsd32_sigprocmask_args *uap) 2143 { 2144 sigset_t set, oset; 2145 int error; 2146 2147 OSIG2SIG(uap->mask, set); 2148 error = kern_sigprocmask(td, uap->how, &set, &oset, 1); 2149 SIG2OSIG(oset, td->td_retval[0]); 2150 return (error); 2151 } 2152 2153 int 2154 ofreebsd32_sigpending(struct thread *td, 2155 struct ofreebsd32_sigpending_args *uap) 2156 { 2157 struct proc *p = td->td_proc; 2158 sigset_t siglist; 2159 2160 PROC_LOCK(p); 2161 siglist = p->p_siglist; 2162 SIGSETOR(siglist, td->td_siglist); 2163 PROC_UNLOCK(p); 2164 SIG2OSIG(siglist, td->td_retval[0]); 2165 return (0); 2166 } 2167 2168 struct sigvec32 { 2169 u_int32_t sv_handler; 2170 int sv_mask; 2171 int sv_flags; 2172 }; 2173 2174 int 2175 ofreebsd32_sigvec(struct thread *td, 2176 struct ofreebsd32_sigvec_args *uap) 2177 { 2178 struct sigvec32 vec; 2179 struct sigaction sa, osa, *sap; 2180 int error; 2181 2182 if (uap->signum <= 0 || uap->signum >= ONSIG) 2183 return (EINVAL); 2184 2185 if (uap->nsv) { 2186 error = copyin(uap->nsv, &vec, sizeof(vec)); 2187 if (error) 2188 return (error); 2189 sa.sa_handler = PTRIN(vec.sv_handler); 2190 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2191 sa.sa_flags = vec.sv_flags; 2192 sa.sa_flags ^= SA_RESTART; 2193 sap = &sa; 2194 } else 2195 sap = NULL; 2196 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2197 if (error == 0 && uap->osv != NULL) { 2198 vec.sv_handler = PTROUT(osa.sa_handler); 2199 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2200 vec.sv_flags = osa.sa_flags; 2201 vec.sv_flags &= ~SA_NOCLDWAIT; 2202 vec.sv_flags ^= SA_RESTART; 2203 error = copyout(&vec, uap->osv, sizeof(vec)); 2204 } 2205 return (error); 2206 } 2207 2208 int 2209 ofreebsd32_sigblock(struct thread *td, 2210 struct ofreebsd32_sigblock_args *uap) 2211 { 2212 struct proc *p = td->td_proc; 2213 sigset_t set; 2214 2215 OSIG2SIG(uap->mask, set); 2216 SIG_CANTMASK(set); 2217 PROC_LOCK(p); 2218 SIG2OSIG(td->td_sigmask, td->td_retval[0]); 2219 SIGSETOR(td->td_sigmask, set); 2220 PROC_UNLOCK(p); 2221 return (0); 2222 } 2223 2224 int 2225 ofreebsd32_sigsetmask(struct thread *td, 2226 struct ofreebsd32_sigsetmask_args *uap) 2227 { 2228 struct proc *p = td->td_proc; 2229 sigset_t set; 2230 2231 OSIG2SIG(uap->mask, set); 2232 SIG_CANTMASK(set); 2233 PROC_LOCK(p); 2234 SIG2OSIG(td->td_sigmask, td->td_retval[0]); 2235 SIGSETLO(td->td_sigmask, set); 2236 signotify(td); 2237 PROC_UNLOCK(p); 2238 return (0); 2239 } 2240 2241 int 2242 ofreebsd32_sigsuspend(struct thread *td, 2243 struct ofreebsd32_sigsuspend_args *uap) 2244 { 2245 struct proc *p = td->td_proc; 2246 sigset_t mask; 2247 2248 PROC_LOCK(p); 2249 td->td_oldsigmask = td->td_sigmask; 2250 td->td_pflags |= TDP_OLDMASK; 2251 OSIG2SIG(uap->mask, mask); 2252 SIG_CANTMASK(mask); 2253 SIGSETLO(td->td_sigmask, mask); 2254 signotify(td); 2255 while (msleep(&p->p_sigacts, &p->p_mtx, PPAUSE|PCATCH, "opause", 0) == 0) 2256 /* void */; 2257 PROC_UNLOCK(p); 2258 /* always return EINTR rather than ERESTART... */ 2259 return (EINTR); 2260 } 2261 2262 struct sigstack32 { 2263 u_int32_t ss_sp; 2264 int ss_onstack; 2265 }; 2266 2267 int 2268 ofreebsd32_sigstack(struct thread *td, 2269 struct ofreebsd32_sigstack_args *uap) 2270 { 2271 struct sigstack32 s32; 2272 struct sigstack nss, oss; 2273 int error = 0, unss; 2274 2275 if (uap->nss != NULL) { 2276 error = copyin(uap->nss, &s32, sizeof(s32)); 2277 if (error) 2278 return (error); 2279 nss.ss_sp = PTRIN(s32.ss_sp); 2280 CP(s32, nss, ss_onstack); 2281 unss = 1; 2282 } else { 2283 unss = 0; 2284 } 2285 oss.ss_sp = td->td_sigstk.ss_sp; 2286 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2287 if (unss) { 2288 td->td_sigstk.ss_sp = nss.ss_sp; 2289 td->td_sigstk.ss_size = 0; 2290 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2291 td->td_pflags |= TDP_ALTSTACK; 2292 } 2293 if (uap->oss != NULL) { 2294 s32.ss_sp = PTROUT(oss.ss_sp); 2295 CP(oss, s32, ss_onstack); 2296 error = copyout(&s32, uap->oss, sizeof(s32)); 2297 } 2298 return (error); 2299 } 2300 #endif 2301 2302 int 2303 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2304 { 2305 struct timespec32 rmt32, rqt32; 2306 struct timespec rmt, rqt; 2307 int error; 2308 2309 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2310 if (error) 2311 return (error); 2312 2313 CP(rqt32, rqt, tv_sec); 2314 CP(rqt32, rqt, tv_nsec); 2315 2316 if (uap->rmtp && 2317 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2318 return (EFAULT); 2319 error = kern_nanosleep(td, &rqt, &rmt); 2320 if (error && uap->rmtp) { 2321 int error2; 2322 2323 CP(rmt, rmt32, tv_sec); 2324 CP(rmt, rmt32, tv_nsec); 2325 2326 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2327 if (error2) 2328 error = error2; 2329 } 2330 return (error); 2331 } 2332 2333 int 2334 freebsd32_clock_gettime(struct thread *td, 2335 struct freebsd32_clock_gettime_args *uap) 2336 { 2337 struct timespec ats; 2338 struct timespec32 ats32; 2339 int error; 2340 2341 error = kern_clock_gettime(td, uap->clock_id, &ats); 2342 if (error == 0) { 2343 CP(ats, ats32, tv_sec); 2344 CP(ats, ats32, tv_nsec); 2345 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2346 } 2347 return (error); 2348 } 2349 2350 int 2351 freebsd32_clock_settime(struct thread *td, 2352 struct freebsd32_clock_settime_args *uap) 2353 { 2354 struct timespec ats; 2355 struct timespec32 ats32; 2356 int error; 2357 2358 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2359 if (error) 2360 return (error); 2361 CP(ats32, ats, tv_sec); 2362 CP(ats32, ats, tv_nsec); 2363 2364 return (kern_clock_settime(td, uap->clock_id, &ats)); 2365 } 2366 2367 int 2368 freebsd32_clock_getres(struct thread *td, 2369 struct freebsd32_clock_getres_args *uap) 2370 { 2371 struct timespec ts; 2372 struct timespec32 ts32; 2373 int error; 2374 2375 if (uap->tp == NULL) 2376 return (0); 2377 error = kern_clock_getres(td, uap->clock_id, &ts); 2378 if (error == 0) { 2379 CP(ts, ts32, tv_sec); 2380 CP(ts, ts32, tv_nsec); 2381 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2382 } 2383 return (error); 2384 } 2385 2386 int 2387 freebsd32_thr_new(struct thread *td, 2388 struct freebsd32_thr_new_args *uap) 2389 { 2390 struct thr_param32 param32; 2391 struct thr_param param; 2392 int error; 2393 2394 if (uap->param_size < 0 || 2395 uap->param_size > sizeof(struct thr_param32)) 2396 return (EINVAL); 2397 bzero(¶m, sizeof(struct thr_param)); 2398 bzero(¶m32, sizeof(struct thr_param32)); 2399 error = copyin(uap->param, ¶m32, uap->param_size); 2400 if (error != 0) 2401 return (error); 2402 param.start_func = PTRIN(param32.start_func); 2403 param.arg = PTRIN(param32.arg); 2404 param.stack_base = PTRIN(param32.stack_base); 2405 param.stack_size = param32.stack_size; 2406 param.tls_base = PTRIN(param32.tls_base); 2407 param.tls_size = param32.tls_size; 2408 param.child_tid = PTRIN(param32.child_tid); 2409 param.parent_tid = PTRIN(param32.parent_tid); 2410 param.flags = param32.flags; 2411 param.rtp = PTRIN(param32.rtp); 2412 param.spare[0] = PTRIN(param32.spare[0]); 2413 param.spare[1] = PTRIN(param32.spare[1]); 2414 param.spare[2] = PTRIN(param32.spare[2]); 2415 2416 return (kern_thr_new(td, ¶m)); 2417 } 2418 2419 int 2420 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2421 { 2422 struct timespec32 ts32; 2423 struct timespec ts, *tsp; 2424 int error; 2425 2426 error = 0; 2427 tsp = NULL; 2428 if (uap->timeout != NULL) { 2429 error = copyin((const void *)uap->timeout, (void *)&ts32, 2430 sizeof(struct timespec32)); 2431 if (error != 0) 2432 return (error); 2433 ts.tv_sec = ts32.tv_sec; 2434 ts.tv_nsec = ts32.tv_nsec; 2435 tsp = &ts; 2436 } 2437 return (kern_thr_suspend(td, tsp)); 2438 } 2439 2440 void 2441 siginfo_to_siginfo32(siginfo_t *src, struct siginfo32 *dst) 2442 { 2443 bzero(dst, sizeof(*dst)); 2444 dst->si_signo = src->si_signo; 2445 dst->si_errno = src->si_errno; 2446 dst->si_code = src->si_code; 2447 dst->si_pid = src->si_pid; 2448 dst->si_uid = src->si_uid; 2449 dst->si_status = src->si_status; 2450 dst->si_addr = (uintptr_t)src->si_addr; 2451 dst->si_value.sigval_int = src->si_value.sival_int; 2452 dst->si_timerid = src->si_timerid; 2453 dst->si_overrun = src->si_overrun; 2454 } 2455 2456 int 2457 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2458 { 2459 struct timespec32 ts32; 2460 struct timespec ts; 2461 struct timespec *timeout; 2462 sigset_t set; 2463 ksiginfo_t ksi; 2464 struct siginfo32 si32; 2465 int error; 2466 2467 if (uap->timeout) { 2468 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2469 if (error) 2470 return (error); 2471 ts.tv_sec = ts32.tv_sec; 2472 ts.tv_nsec = ts32.tv_nsec; 2473 timeout = &ts; 2474 } else 2475 timeout = NULL; 2476 2477 error = copyin(uap->set, &set, sizeof(set)); 2478 if (error) 2479 return (error); 2480 2481 error = kern_sigtimedwait(td, set, &ksi, timeout); 2482 if (error) 2483 return (error); 2484 2485 if (uap->info) { 2486 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2487 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2488 } 2489 2490 if (error == 0) 2491 td->td_retval[0] = ksi.ksi_signo; 2492 return (error); 2493 } 2494 2495 /* 2496 * MPSAFE 2497 */ 2498 int 2499 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2500 { 2501 ksiginfo_t ksi; 2502 struct siginfo32 si32; 2503 sigset_t set; 2504 int error; 2505 2506 error = copyin(uap->set, &set, sizeof(set)); 2507 if (error) 2508 return (error); 2509 2510 error = kern_sigtimedwait(td, set, &ksi, NULL); 2511 if (error) 2512 return (error); 2513 2514 if (uap->info) { 2515 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2516 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2517 } 2518 if (error == 0) 2519 td->td_retval[0] = ksi.ksi_signo; 2520 return (error); 2521 } 2522 2523 int 2524 freebsd32_cpuset_setid(struct thread *td, 2525 struct freebsd32_cpuset_setid_args *uap) 2526 { 2527 struct cpuset_setid_args ap; 2528 2529 ap.which = uap->which; 2530 ap.id = (uap->idlo | ((id_t)uap->idhi << 32)); 2531 ap.setid = uap->setid; 2532 2533 return cpuset_setid(td, &ap); 2534 } 2535 2536 int 2537 freebsd32_cpuset_getid(struct thread *td, 2538 struct freebsd32_cpuset_getid_args *uap) 2539 { 2540 struct cpuset_getid_args ap; 2541 2542 ap.level = uap->level; 2543 ap.which = uap->which; 2544 ap.id = (uap->idlo | ((id_t)uap->idhi << 32)); 2545 ap.setid = uap->setid; 2546 2547 return cpuset_getid(td, &ap); 2548 } 2549 2550 int 2551 freebsd32_cpuset_getaffinity(struct thread *td, 2552 struct freebsd32_cpuset_getaffinity_args *uap) 2553 { 2554 struct cpuset_getaffinity_args ap; 2555 2556 ap.level = uap->level; 2557 ap.which = uap->which; 2558 ap.id = (uap->idlo | ((id_t)uap->idhi << 32)); 2559 ap.cpusetsize = uap->cpusetsize; 2560 ap.mask = uap->mask; 2561 2562 return cpuset_getaffinity(td, &ap); 2563 } 2564 2565 int 2566 freebsd32_cpuset_setaffinity(struct thread *td, 2567 struct freebsd32_cpuset_setaffinity_args *uap) 2568 { 2569 struct cpuset_setaffinity_args ap; 2570 2571 ap.level = uap->level; 2572 ap.which = uap->which; 2573 ap.id = (uap->idlo | ((id_t)uap->idhi << 32)); 2574 ap.cpusetsize = uap->cpusetsize; 2575 ap.mask = uap->mask; 2576 2577 return cpuset_setaffinity(td, &ap); 2578 } 2579 2580 int 2581 freebsd32_nmount(struct thread *td, 2582 struct freebsd32_nmount_args /* { 2583 struct iovec *iovp; 2584 unsigned int iovcnt; 2585 int flags; 2586 } */ *uap) 2587 { 2588 struct uio *auio; 2589 struct iovec *iov; 2590 int error, k; 2591 2592 AUDIT_ARG(fflags, uap->flags); 2593 2594 /* 2595 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2596 * userspace to set this flag, but we must filter it out if we want 2597 * MNT_UPDATE on the root file system to work. 2598 * MNT_ROOTFS should only be set in the kernel in vfs_mountroot_try(). 2599 */ 2600 uap->flags &= ~MNT_ROOTFS; 2601 2602 /* 2603 * check that we have an even number of iovec's 2604 * and that we have at least two options. 2605 */ 2606 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2607 return (EINVAL); 2608 2609 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2610 if (error) 2611 return (error); 2612 for (iov = auio->uio_iov, k = 0; k < uap->iovcnt; ++k, ++iov) { 2613 if (iov->iov_len > MMAXOPTIONLEN) { 2614 free(auio, M_IOV); 2615 return (EINVAL); 2616 } 2617 } 2618 2619 error = vfs_donmount(td, uap->flags, auio); 2620 free(auio, M_IOV); 2621 return error; 2622 } 2623 2624 #if 0 2625 int 2626 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2627 { 2628 struct yyy32 *p32, s32; 2629 struct yyy *p = NULL, s; 2630 struct xxx_arg ap; 2631 int error; 2632 2633 if (uap->zzz) { 2634 error = copyin(uap->zzz, &s32, sizeof(s32)); 2635 if (error) 2636 return (error); 2637 /* translate in */ 2638 p = &s; 2639 } 2640 error = kern_xxx(td, p); 2641 if (error) 2642 return (error); 2643 if (uap->zzz) { 2644 /* translate out */ 2645 error = copyout(&s32, p32, sizeof(s32)); 2646 } 2647 return (error); 2648 } 2649 #endif 2650 2651 int 2652 syscall32_register(int *offset, struct sysent *new_sysent, 2653 struct sysent *old_sysent) 2654 { 2655 if (*offset == NO_SYSCALL) { 2656 int i; 2657 2658 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2659 if (freebsd32_sysent[i].sy_call == 2660 (sy_call_t *)lkmnosys) 2661 break; 2662 if (i == SYS_MAXSYSCALL) 2663 return (ENFILE); 2664 *offset = i; 2665 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2666 return (EINVAL); 2667 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2668 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2669 return (EEXIST); 2670 2671 *old_sysent = freebsd32_sysent[*offset]; 2672 freebsd32_sysent[*offset] = *new_sysent; 2673 return 0; 2674 } 2675 2676 int 2677 syscall32_deregister(int *offset, struct sysent *old_sysent) 2678 { 2679 2680 if (*offset) 2681 freebsd32_sysent[*offset] = *old_sysent; 2682 return 0; 2683 } 2684 2685 int 2686 syscall32_module_handler(struct module *mod, int what, void *arg) 2687 { 2688 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2689 modspecific_t ms; 2690 int error; 2691 2692 switch (what) { 2693 case MOD_LOAD: 2694 error = syscall32_register(data->offset, data->new_sysent, 2695 &data->old_sysent); 2696 if (error) { 2697 /* Leave a mark so we know to safely unload below. */ 2698 data->offset = NULL; 2699 return error; 2700 } 2701 ms.intval = *data->offset; 2702 MOD_XLOCK; 2703 module_setspecific(mod, &ms); 2704 MOD_XUNLOCK; 2705 if (data->chainevh) 2706 error = data->chainevh(mod, what, data->chainarg); 2707 return (error); 2708 case MOD_UNLOAD: 2709 /* 2710 * MOD_LOAD failed, so just return without calling the 2711 * chained handler since we didn't pass along the MOD_LOAD 2712 * event. 2713 */ 2714 if (data->offset == NULL) 2715 return (0); 2716 if (data->chainevh) { 2717 error = data->chainevh(mod, what, data->chainarg); 2718 if (error) 2719 return (error); 2720 } 2721 error = syscall32_deregister(data->offset, &data->old_sysent); 2722 return (error); 2723 default: 2724 error = EOPNOTSUPP; 2725 if (data->chainevh) 2726 error = data->chainevh(mod, what, data->chainarg); 2727 return (error); 2728 } 2729 }
Cache object: 0138c1aefb09fe0148fe4f4f7a749efc
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