freebsd32_misc.c revision 185435
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 185435 2008-11-29 14:32:14Z bz $"); 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 97CTASSERT(sizeof(struct timeval32) == 8); 98CTASSERT(sizeof(struct timespec32) == 8); 99CTASSERT(sizeof(struct itimerval32) == 16); 100CTASSERT(sizeof(struct statfs32) == 256); 101CTASSERT(sizeof(struct rusage32) == 72); 102CTASSERT(sizeof(struct sigaltstack32) == 12); 103CTASSERT(sizeof(struct kevent32) == 20); 104CTASSERT(sizeof(struct iovec32) == 8); 105CTASSERT(sizeof(struct msghdr32) == 28); 106CTASSERT(sizeof(struct stat32) == 96); 107CTASSERT(sizeof(struct sigaction32) == 24); 108 109static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 110static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 111 112int 113freebsd32_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 151static void 152copy_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 182int 183freebsd4_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 209int 210freebsd32_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 */ 241static int 242freebsd32_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 /* 267 * Copy the file name. 268 */ 269 if (fname != NULL) { 270 args->fname = args->buf + ARG_MAX; 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 } else 277 args->fname = NULL; 278 279 /* 280 * extract arguments first 281 */ 282 p32 = argv; 283 for (;;) { 284 error = copyin(p32++, &arg, sizeof(arg)); 285 if (error) 286 goto err_exit; 287 if (arg == 0) 288 break; 289 argp = PTRIN(arg); 290 error = copyinstr(argp, args->endp, args->stringspace, &length); 291 if (error) { 292 if (error == ENAMETOOLONG) 293 error = E2BIG; 294 goto err_exit; 295 } 296 args->stringspace -= length; 297 args->endp += length; 298 args->argc++; 299 } 300 301 args->begin_envv = args->endp; 302 303 /* 304 * extract environment strings 305 */ 306 if (envv) { 307 p32 = envv; 308 for (;;) { 309 error = copyin(p32++, &arg, sizeof(arg)); 310 if (error) 311 goto err_exit; 312 if (arg == 0) 313 break; 314 envp = PTRIN(arg); 315 error = copyinstr(envp, args->endp, args->stringspace, 316 &length); 317 if (error) { 318 if (error == ENAMETOOLONG) 319 error = E2BIG; 320 goto err_exit; 321 } 322 args->stringspace -= length; 323 args->endp += length; 324 args->envc++; 325 } 326 } 327 328 return (0); 329 330err_exit: 331 kmem_free_wakeup(exec_map, (vm_offset_t)args->buf, 332 PATH_MAX + ARG_MAX + MAXSHELLCMDLEN); 333 args->buf = NULL; 334 return (error); 335} 336 337int 338freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 339{ 340 struct image_args eargs; 341 int error; 342 343 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 344 uap->argv, uap->envv); 345 if (error == 0) 346 error = kern_execve(td, &eargs, NULL); 347 return (error); 348} 349 350int 351freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 352{ 353 struct image_args eargs; 354 int error; 355 356 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 357 uap->argv, uap->envv); 358 if (error == 0) { 359 eargs.fd = uap->fd; 360 error = kern_execve(td, &eargs, NULL); 361 } 362 return (error); 363} 364 365#ifdef __ia64__ 366static int 367freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 368 int prot, int fd, off_t pos) 369{ 370 vm_map_t map; 371 vm_map_entry_t entry; 372 int rv; 373 374 map = &td->td_proc->p_vmspace->vm_map; 375 if (fd != -1) 376 prot |= VM_PROT_WRITE; 377 378 if (vm_map_lookup_entry(map, start, &entry)) { 379 if ((entry->protection & prot) != prot) { 380 rv = vm_map_protect(map, 381 trunc_page(start), 382 round_page(end), 383 entry->protection | prot, 384 FALSE); 385 if (rv != KERN_SUCCESS) 386 return (EINVAL); 387 } 388 } else { 389 vm_offset_t addr = trunc_page(start); 390 rv = vm_map_find(map, 0, 0, 391 &addr, PAGE_SIZE, FALSE, prot, 392 VM_PROT_ALL, 0); 393 if (rv != KERN_SUCCESS) 394 return (EINVAL); 395 } 396 397 if (fd != -1) { 398 struct pread_args r; 399 r.fd = fd; 400 r.buf = (void *) start; 401 r.nbyte = end - start; 402 r.offset = pos; 403 return (pread(td, &r)); 404 } else { 405 while (start < end) { 406 subyte((void *) start, 0); 407 start++; 408 } 409 return (0); 410 } 411} 412#endif 413 414int 415freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 416{ 417 struct mmap_args ap; 418 vm_offset_t addr = (vm_offset_t) uap->addr; 419 vm_size_t len = uap->len; 420 int prot = uap->prot; 421 int flags = uap->flags; 422 int fd = uap->fd; 423 off_t pos = (uap->poslo 424 | ((off_t)uap->poshi << 32)); 425#ifdef __ia64__ 426 vm_size_t pageoff; 427 int error; 428 429 /* 430 * Attempt to handle page size hassles. 431 */ 432 pageoff = (pos & PAGE_MASK); 433 if (flags & MAP_FIXED) { 434 vm_offset_t start, end; 435 start = addr; 436 end = addr + len; 437 438 if (start != trunc_page(start)) { 439 error = freebsd32_mmap_partial(td, start, 440 round_page(start), prot, 441 fd, pos); 442 if (fd != -1) 443 pos += round_page(start) - start; 444 start = round_page(start); 445 } 446 if (end != round_page(end)) { 447 vm_offset_t t = trunc_page(end); 448 error = freebsd32_mmap_partial(td, t, end, 449 prot, fd, 450 pos + t - start); 451 end = trunc_page(end); 452 } 453 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 454 /* 455 * We can't map this region at all. The specified 456 * address doesn't have the same alignment as the file 457 * position. Fake the mapping by simply reading the 458 * entire region into memory. First we need to make 459 * sure the region exists. 460 */ 461 vm_map_t map; 462 struct pread_args r; 463 int rv; 464 465 prot |= VM_PROT_WRITE; 466 map = &td->td_proc->p_vmspace->vm_map; 467 rv = vm_map_remove(map, start, end); 468 if (rv != KERN_SUCCESS) 469 return (EINVAL); 470 rv = vm_map_find(map, 0, 0, 471 &start, end - start, FALSE, 472 prot, VM_PROT_ALL, 0); 473 if (rv != KERN_SUCCESS) 474 return (EINVAL); 475 r.fd = fd; 476 r.buf = (void *) start; 477 r.nbyte = end - start; 478 r.offset = pos; 479 error = pread(td, &r); 480 if (error) 481 return (error); 482 483 td->td_retval[0] = addr; 484 return (0); 485 } 486 if (end == start) { 487 /* 488 * After dealing with the ragged ends, there 489 * might be none left. 490 */ 491 td->td_retval[0] = addr; 492 return (0); 493 } 494 addr = start; 495 len = end - start; 496 } 497#endif 498 499 ap.addr = (void *) addr; 500 ap.len = len; 501 ap.prot = prot; 502 ap.flags = flags; 503 ap.fd = fd; 504 ap.pos = pos; 505 506 return (mmap(td, &ap)); 507} 508 509#ifdef COMPAT_FREEBSD6 510int 511freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 512{ 513 struct freebsd32_mmap_args ap; 514 515 ap.addr = uap->addr; 516 ap.len = uap->len; 517 ap.prot = uap->prot; 518 ap.flags = uap->flags; 519 ap.fd = uap->fd; 520 ap.poslo = uap->poslo; 521 ap.poshi = uap->poshi; 522 523 return (freebsd32_mmap(td, &ap)); 524} 525#endif 526 527int 528freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 529{ 530 struct itimerval itv, oitv, *itvp; 531 struct itimerval32 i32; 532 int error; 533 534 if (uap->itv != NULL) { 535 error = copyin(uap->itv, &i32, sizeof(i32)); 536 if (error) 537 return (error); 538 TV_CP(i32, itv, it_interval); 539 TV_CP(i32, itv, it_value); 540 itvp = &itv; 541 } else 542 itvp = NULL; 543 error = kern_setitimer(td, uap->which, itvp, &oitv); 544 if (error || uap->oitv == NULL) 545 return (error); 546 TV_CP(oitv, i32, it_interval); 547 TV_CP(oitv, i32, it_value); 548 return (copyout(&i32, uap->oitv, sizeof(i32))); 549} 550 551int 552freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 553{ 554 struct itimerval itv; 555 struct itimerval32 i32; 556 int error; 557 558 error = kern_getitimer(td, uap->which, &itv); 559 if (error || uap->itv == NULL) 560 return (error); 561 TV_CP(itv, i32, it_interval); 562 TV_CP(itv, i32, it_value); 563 return (copyout(&i32, uap->itv, sizeof(i32))); 564} 565 566int 567freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 568{ 569 struct timeval32 tv32; 570 struct timeval tv, *tvp; 571 int error; 572 573 if (uap->tv != NULL) { 574 error = copyin(uap->tv, &tv32, sizeof(tv32)); 575 if (error) 576 return (error); 577 CP(tv32, tv, tv_sec); 578 CP(tv32, tv, tv_usec); 579 tvp = &tv; 580 } else 581 tvp = NULL; 582 /* 583 * XXX big-endian needs to convert the fd_sets too. 584 * XXX Do pointers need PTRIN()? 585 */ 586 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp)); 587} 588 589/* 590 * Copy 'count' items into the destination list pointed to by uap->eventlist. 591 */ 592static int 593freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 594{ 595 struct freebsd32_kevent_args *uap; 596 struct kevent32 ks32[KQ_NEVENTS]; 597 int i, error = 0; 598 599 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 600 uap = (struct freebsd32_kevent_args *)arg; 601 602 for (i = 0; i < count; i++) { 603 CP(kevp[i], ks32[i], ident); 604 CP(kevp[i], ks32[i], filter); 605 CP(kevp[i], ks32[i], flags); 606 CP(kevp[i], ks32[i], fflags); 607 CP(kevp[i], ks32[i], data); 608 PTROUT_CP(kevp[i], ks32[i], udata); 609 } 610 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 611 if (error == 0) 612 uap->eventlist += count; 613 return (error); 614} 615 616/* 617 * Copy 'count' items from the list pointed to by uap->changelist. 618 */ 619static int 620freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 621{ 622 struct freebsd32_kevent_args *uap; 623 struct kevent32 ks32[KQ_NEVENTS]; 624 int i, error = 0; 625 626 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 627 uap = (struct freebsd32_kevent_args *)arg; 628 629 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 630 if (error) 631 goto done; 632 uap->changelist += count; 633 634 for (i = 0; i < count; i++) { 635 CP(ks32[i], kevp[i], ident); 636 CP(ks32[i], kevp[i], filter); 637 CP(ks32[i], kevp[i], flags); 638 CP(ks32[i], kevp[i], fflags); 639 CP(ks32[i], kevp[i], data); 640 PTRIN_CP(ks32[i], kevp[i], udata); 641 } 642done: 643 return (error); 644} 645 646int 647freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 648{ 649 struct timespec32 ts32; 650 struct timespec ts, *tsp; 651 struct kevent_copyops k_ops = { uap, 652 freebsd32_kevent_copyout, 653 freebsd32_kevent_copyin}; 654 int error; 655 656 657 if (uap->timeout) { 658 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 659 if (error) 660 return (error); 661 CP(ts32, ts, tv_sec); 662 CP(ts32, ts, tv_nsec); 663 tsp = &ts; 664 } else 665 tsp = NULL; 666 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 667 &k_ops, tsp); 668 return (error); 669} 670 671int 672freebsd32_gettimeofday(struct thread *td, 673 struct freebsd32_gettimeofday_args *uap) 674{ 675 struct timeval atv; 676 struct timeval32 atv32; 677 struct timezone rtz; 678 int error = 0; 679 680 if (uap->tp) { 681 microtime(&atv); 682 CP(atv, atv32, tv_sec); 683 CP(atv, atv32, tv_usec); 684 error = copyout(&atv32, uap->tp, sizeof (atv32)); 685 } 686 if (error == 0 && uap->tzp != NULL) { 687 rtz.tz_minuteswest = tz_minuteswest; 688 rtz.tz_dsttime = tz_dsttime; 689 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 690 } 691 return (error); 692} 693 694int 695freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 696{ 697 struct rusage32 s32; 698 struct rusage s; 699 int error; 700 701 error = kern_getrusage(td, uap->who, &s); 702 if (error) 703 return (error); 704 if (uap->rusage != NULL) { 705 TV_CP(s, s32, ru_utime); 706 TV_CP(s, s32, ru_stime); 707 CP(s, s32, ru_maxrss); 708 CP(s, s32, ru_ixrss); 709 CP(s, s32, ru_idrss); 710 CP(s, s32, ru_isrss); 711 CP(s, s32, ru_minflt); 712 CP(s, s32, ru_majflt); 713 CP(s, s32, ru_nswap); 714 CP(s, s32, ru_inblock); 715 CP(s, s32, ru_oublock); 716 CP(s, s32, ru_msgsnd); 717 CP(s, s32, ru_msgrcv); 718 CP(s, s32, ru_nsignals); 719 CP(s, s32, ru_nvcsw); 720 CP(s, s32, ru_nivcsw); 721 error = copyout(&s32, uap->rusage, sizeof(s32)); 722 } 723 return (error); 724} 725 726static int 727freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 728{ 729 struct iovec32 iov32; 730 struct iovec *iov; 731 struct uio *uio; 732 u_int iovlen; 733 int error, i; 734 735 *uiop = NULL; 736 if (iovcnt > UIO_MAXIOV) 737 return (EINVAL); 738 iovlen = iovcnt * sizeof(struct iovec); 739 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 740 iov = (struct iovec *)(uio + 1); 741 for (i = 0; i < iovcnt; i++) { 742 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 743 if (error) { 744 free(uio, M_IOV); 745 return (error); 746 } 747 iov[i].iov_base = PTRIN(iov32.iov_base); 748 iov[i].iov_len = iov32.iov_len; 749 } 750 uio->uio_iov = iov; 751 uio->uio_iovcnt = iovcnt; 752 uio->uio_segflg = UIO_USERSPACE; 753 uio->uio_offset = -1; 754 uio->uio_resid = 0; 755 for (i = 0; i < iovcnt; i++) { 756 if (iov->iov_len > INT_MAX - uio->uio_resid) { 757 free(uio, M_IOV); 758 return (EINVAL); 759 } 760 uio->uio_resid += iov->iov_len; 761 iov++; 762 } 763 *uiop = uio; 764 return (0); 765} 766 767int 768freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 769{ 770 struct uio *auio; 771 int error; 772 773 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 774 if (error) 775 return (error); 776 error = kern_readv(td, uap->fd, auio); 777 free(auio, M_IOV); 778 return (error); 779} 780 781int 782freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 783{ 784 struct uio *auio; 785 int error; 786 787 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 788 if (error) 789 return (error); 790 error = kern_writev(td, uap->fd, auio); 791 free(auio, M_IOV); 792 return (error); 793} 794 795int 796freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 797{ 798 struct uio *auio; 799 int error; 800 801 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 802 if (error) 803 return (error); 804 error = kern_preadv(td, uap->fd, auio, uap->offset); 805 free(auio, M_IOV); 806 return (error); 807} 808 809int 810freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 811{ 812 struct uio *auio; 813 int error; 814 815 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 816 if (error) 817 return (error); 818 error = kern_pwritev(td, uap->fd, auio, uap->offset); 819 free(auio, M_IOV); 820 return (error); 821} 822 823static int 824freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 825 int error) 826{ 827 struct iovec32 iov32; 828 struct iovec *iov; 829 u_int iovlen; 830 int i; 831 832 *iovp = NULL; 833 if (iovcnt > UIO_MAXIOV) 834 return (error); 835 iovlen = iovcnt * sizeof(struct iovec); 836 iov = malloc(iovlen, M_IOV, M_WAITOK); 837 for (i = 0; i < iovcnt; i++) { 838 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 839 if (error) { 840 free(iov, M_IOV); 841 return (error); 842 } 843 iov[i].iov_base = PTRIN(iov32.iov_base); 844 iov[i].iov_len = iov32.iov_len; 845 } 846 *iovp = iov; 847 return (0); 848} 849 850static int 851freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 852{ 853 struct msghdr32 m32; 854 int error; 855 856 error = copyin(msg32, &m32, sizeof(m32)); 857 if (error) 858 return (error); 859 msg->msg_name = PTRIN(m32.msg_name); 860 msg->msg_namelen = m32.msg_namelen; 861 msg->msg_iov = PTRIN(m32.msg_iov); 862 msg->msg_iovlen = m32.msg_iovlen; 863 msg->msg_control = PTRIN(m32.msg_control); 864 msg->msg_controllen = m32.msg_controllen; 865 msg->msg_flags = m32.msg_flags; 866 return (0); 867} 868 869static int 870freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 871{ 872 struct msghdr32 m32; 873 int error; 874 875 m32.msg_name = PTROUT(msg->msg_name); 876 m32.msg_namelen = msg->msg_namelen; 877 m32.msg_iov = PTROUT(msg->msg_iov); 878 m32.msg_iovlen = msg->msg_iovlen; 879 m32.msg_control = PTROUT(msg->msg_control); 880 m32.msg_controllen = msg->msg_controllen; 881 m32.msg_flags = msg->msg_flags; 882 error = copyout(&m32, msg32, sizeof(m32)); 883 return (error); 884} 885 886#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 887#define FREEBSD32_ALIGN(p) \ 888 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 889#define FREEBSD32_CMSG_SPACE(l) \ 890 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 891 892#define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 893 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 894static int 895freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 896{ 897 struct cmsghdr *cm; 898 void *data; 899 socklen_t clen, datalen; 900 int error; 901 caddr_t ctlbuf; 902 int len, maxlen, copylen; 903 struct mbuf *m; 904 error = 0; 905 906 len = msg->msg_controllen; 907 maxlen = msg->msg_controllen; 908 msg->msg_controllen = 0; 909 910 m = control; 911 ctlbuf = msg->msg_control; 912 913 while (m && len > 0) { 914 cm = mtod(m, struct cmsghdr *); 915 clen = m->m_len; 916 917 while (cm != NULL) { 918 919 if (sizeof(struct cmsghdr) > clen || 920 cm->cmsg_len > clen) { 921 error = EINVAL; 922 break; 923 } 924 925 data = CMSG_DATA(cm); 926 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 927 928 /* Adjust message length */ 929 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 930 datalen; 931 932 933 /* Copy cmsghdr */ 934 copylen = sizeof(struct cmsghdr); 935 if (len < copylen) { 936 msg->msg_flags |= MSG_CTRUNC; 937 copylen = len; 938 } 939 940 error = copyout(cm,ctlbuf,copylen); 941 if (error) 942 goto exit; 943 944 ctlbuf += FREEBSD32_ALIGN(copylen); 945 len -= FREEBSD32_ALIGN(copylen); 946 947 if (len <= 0) 948 break; 949 950 /* Copy data */ 951 copylen = datalen; 952 if (len < copylen) { 953 msg->msg_flags |= MSG_CTRUNC; 954 copylen = len; 955 } 956 957 error = copyout(data,ctlbuf,copylen); 958 if (error) 959 goto exit; 960 961 ctlbuf += FREEBSD32_ALIGN(copylen); 962 len -= FREEBSD32_ALIGN(copylen); 963 964 if (CMSG_SPACE(datalen) < clen) { 965 clen -= CMSG_SPACE(datalen); 966 cm = (struct cmsghdr *) 967 ((caddr_t)cm + CMSG_SPACE(datalen)); 968 } else { 969 clen = 0; 970 cm = NULL; 971 } 972 } 973 m = m->m_next; 974 } 975 976 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 977 978exit: 979 return (error); 980 981} 982 983int 984freebsd32_recvmsg(td, uap) 985 struct thread *td; 986 struct freebsd32_recvmsg_args /* { 987 int s; 988 struct msghdr32 *msg; 989 int flags; 990 } */ *uap; 991{ 992 struct msghdr msg; 993 struct msghdr32 m32; 994 struct iovec *uiov, *iov; 995 struct mbuf *control = NULL; 996 struct mbuf **controlp; 997 998 int error; 999 error = copyin(uap->msg, &m32, sizeof(m32)); 1000 if (error) 1001 return (error); 1002 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1003 if (error) 1004 return (error); 1005 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1006 EMSGSIZE); 1007 if (error) 1008 return (error); 1009 msg.msg_flags = uap->flags; 1010 uiov = msg.msg_iov; 1011 msg.msg_iov = iov; 1012 1013 controlp = (msg.msg_control != NULL) ? &control : NULL; 1014 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1015 if (error == 0) { 1016 msg.msg_iov = uiov; 1017 1018 if (control != NULL) 1019 error = freebsd32_copy_msg_out(&msg, control); 1020 1021 if (error == 0) 1022 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1023 } 1024 free(iov, M_IOV); 1025 1026 if (control != NULL) 1027 m_freem(control); 1028 1029 return (error); 1030} 1031 1032 1033static int 1034freebsd32_convert_msg_in(struct mbuf **controlp) 1035{ 1036 struct mbuf *control = *controlp; 1037 struct cmsghdr *cm = mtod(control, struct cmsghdr *); 1038 void *data; 1039 socklen_t clen = control->m_len, datalen; 1040 int error; 1041 1042 error = 0; 1043 *controlp = NULL; 1044 1045 while (cm != NULL) { 1046 if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) { 1047 error = EINVAL; 1048 break; 1049 } 1050 1051 data = FREEBSD32_CMSG_DATA(cm); 1052 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1053 1054 *controlp = sbcreatecontrol(data, datalen, cm->cmsg_type, 1055 cm->cmsg_level); 1056 controlp = &(*controlp)->m_next; 1057 1058 if (FREEBSD32_CMSG_SPACE(datalen) < clen) { 1059 clen -= FREEBSD32_CMSG_SPACE(datalen); 1060 cm = (struct cmsghdr *) 1061 ((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen)); 1062 } else { 1063 clen = 0; 1064 cm = NULL; 1065 } 1066 } 1067 1068 m_freem(control); 1069 return (error); 1070} 1071 1072 1073int 1074freebsd32_sendmsg(struct thread *td, 1075 struct freebsd32_sendmsg_args *uap) 1076{ 1077 struct msghdr msg; 1078 struct msghdr32 m32; 1079 struct iovec *iov; 1080 struct mbuf *control = NULL; 1081 struct sockaddr *to = NULL; 1082 int error; 1083 1084 error = copyin(uap->msg, &m32, sizeof(m32)); 1085 if (error) 1086 return (error); 1087 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1088 if (error) 1089 return (error); 1090 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1091 EMSGSIZE); 1092 if (error) 1093 return (error); 1094 msg.msg_iov = iov; 1095 if (msg.msg_name != NULL) { 1096 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1097 if (error) { 1098 to = NULL; 1099 goto out; 1100 } 1101 msg.msg_name = to; 1102 } 1103 1104 if (msg.msg_control) { 1105 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1106 error = EINVAL; 1107 goto out; 1108 } 1109 1110 error = sockargs(&control, msg.msg_control, 1111 msg.msg_controllen, MT_CONTROL); 1112 if (error) 1113 goto out; 1114 1115 error = freebsd32_convert_msg_in(&control); 1116 if (error) 1117 goto out; 1118 } 1119 1120 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1121 UIO_USERSPACE); 1122 1123out: 1124 free(iov, M_IOV); 1125 if (to) 1126 free(to, M_SONAME); 1127 return (error); 1128} 1129 1130int 1131freebsd32_recvfrom(struct thread *td, 1132 struct freebsd32_recvfrom_args *uap) 1133{ 1134 struct msghdr msg; 1135 struct iovec aiov; 1136 int error; 1137 1138 if (uap->fromlenaddr) { 1139 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1140 sizeof(msg.msg_namelen)); 1141 if (error) 1142 return (error); 1143 } else { 1144 msg.msg_namelen = 0; 1145 } 1146 1147 msg.msg_name = PTRIN(uap->from); 1148 msg.msg_iov = &aiov; 1149 msg.msg_iovlen = 1; 1150 aiov.iov_base = PTRIN(uap->buf); 1151 aiov.iov_len = uap->len; 1152 msg.msg_control = NULL; 1153 msg.msg_flags = uap->flags; 1154 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1155 if (error == 0 && uap->fromlenaddr) 1156 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1157 sizeof (msg.msg_namelen)); 1158 return (error); 1159} 1160 1161int 1162freebsd32_settimeofday(struct thread *td, 1163 struct freebsd32_settimeofday_args *uap) 1164{ 1165 struct timeval32 tv32; 1166 struct timeval tv, *tvp; 1167 struct timezone tz, *tzp; 1168 int error; 1169 1170 if (uap->tv) { 1171 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1172 if (error) 1173 return (error); 1174 CP(tv32, tv, tv_sec); 1175 CP(tv32, tv, tv_usec); 1176 tvp = &tv; 1177 } else 1178 tvp = NULL; 1179 if (uap->tzp) { 1180 error = copyin(uap->tzp, &tz, sizeof(tz)); 1181 if (error) 1182 return (error); 1183 tzp = &tz; 1184 } else 1185 tzp = NULL; 1186 return (kern_settimeofday(td, tvp, tzp)); 1187} 1188 1189int 1190freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1191{ 1192 struct timeval32 s32[2]; 1193 struct timeval s[2], *sp; 1194 int error; 1195 1196 if (uap->tptr != NULL) { 1197 error = copyin(uap->tptr, s32, sizeof(s32)); 1198 if (error) 1199 return (error); 1200 CP(s32[0], s[0], tv_sec); 1201 CP(s32[0], s[0], tv_usec); 1202 CP(s32[1], s[1], tv_sec); 1203 CP(s32[1], s[1], tv_usec); 1204 sp = s; 1205 } else 1206 sp = NULL; 1207 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1208} 1209 1210int 1211freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1212{ 1213 struct timeval32 s32[2]; 1214 struct timeval s[2], *sp; 1215 int error; 1216 1217 if (uap->tptr != NULL) { 1218 error = copyin(uap->tptr, s32, sizeof(s32)); 1219 if (error) 1220 return (error); 1221 CP(s32[0], s[0], tv_sec); 1222 CP(s32[0], s[0], tv_usec); 1223 CP(s32[1], s[1], tv_sec); 1224 CP(s32[1], s[1], tv_usec); 1225 sp = s; 1226 } else 1227 sp = NULL; 1228 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1229} 1230 1231int 1232freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1233{ 1234 struct timeval32 s32[2]; 1235 struct timeval s[2], *sp; 1236 int error; 1237 1238 if (uap->tptr != NULL) { 1239 error = copyin(uap->tptr, s32, sizeof(s32)); 1240 if (error) 1241 return (error); 1242 CP(s32[0], s[0], tv_sec); 1243 CP(s32[0], s[0], tv_usec); 1244 CP(s32[1], s[1], tv_sec); 1245 CP(s32[1], s[1], tv_usec); 1246 sp = s; 1247 } else 1248 sp = NULL; 1249 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1250} 1251 1252int 1253freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1254{ 1255 struct timeval32 s32[2]; 1256 struct timeval s[2], *sp; 1257 int error; 1258 1259 if (uap->times != NULL) { 1260 error = copyin(uap->times, s32, sizeof(s32)); 1261 if (error) 1262 return (error); 1263 CP(s32[0], s[0], tv_sec); 1264 CP(s32[0], s[0], tv_usec); 1265 CP(s32[1], s[1], tv_sec); 1266 CP(s32[1], s[1], tv_usec); 1267 sp = s; 1268 } else 1269 sp = NULL; 1270 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1271 sp, UIO_SYSSPACE)); 1272} 1273 1274int 1275freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1276{ 1277 struct timeval32 tv32; 1278 struct timeval delta, olddelta, *deltap; 1279 int error; 1280 1281 if (uap->delta) { 1282 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1283 if (error) 1284 return (error); 1285 CP(tv32, delta, tv_sec); 1286 CP(tv32, delta, tv_usec); 1287 deltap = δ 1288 } else 1289 deltap = NULL; 1290 error = kern_adjtime(td, deltap, &olddelta); 1291 if (uap->olddelta && error == 0) { 1292 CP(olddelta, tv32, tv_sec); 1293 CP(olddelta, tv32, tv_usec); 1294 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1295 } 1296 return (error); 1297} 1298 1299#ifdef COMPAT_FREEBSD4 1300int 1301freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1302{ 1303 struct statfs32 s32; 1304 struct statfs s; 1305 int error; 1306 1307 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1308 if (error) 1309 return (error); 1310 copy_statfs(&s, &s32); 1311 return (copyout(&s32, uap->buf, sizeof(s32))); 1312} 1313#endif 1314 1315#ifdef COMPAT_FREEBSD4 1316int 1317freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1318{ 1319 struct statfs32 s32; 1320 struct statfs s; 1321 int error; 1322 1323 error = kern_fstatfs(td, uap->fd, &s); 1324 if (error) 1325 return (error); 1326 copy_statfs(&s, &s32); 1327 return (copyout(&s32, uap->buf, sizeof(s32))); 1328} 1329#endif 1330 1331#ifdef COMPAT_FREEBSD4 1332int 1333freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1334{ 1335 struct statfs32 s32; 1336 struct statfs s; 1337 fhandle_t fh; 1338 int error; 1339 1340 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1341 return (error); 1342 error = kern_fhstatfs(td, fh, &s); 1343 if (error) 1344 return (error); 1345 copy_statfs(&s, &s32); 1346 return (copyout(&s32, uap->buf, sizeof(s32))); 1347} 1348#endif 1349 1350static void 1351freebsd32_ipcperm_in(struct ipc_perm32 *ip32, struct ipc_perm *ip) 1352{ 1353 1354 CP(*ip32, *ip, cuid); 1355 CP(*ip32, *ip, cgid); 1356 CP(*ip32, *ip, uid); 1357 CP(*ip32, *ip, gid); 1358 CP(*ip32, *ip, mode); 1359 CP(*ip32, *ip, seq); 1360 CP(*ip32, *ip, key); 1361} 1362 1363static void 1364freebsd32_ipcperm_out(struct ipc_perm *ip, struct ipc_perm32 *ip32) 1365{ 1366 1367 CP(*ip, *ip32, cuid); 1368 CP(*ip, *ip32, cgid); 1369 CP(*ip, *ip32, uid); 1370 CP(*ip, *ip32, gid); 1371 CP(*ip, *ip32, mode); 1372 CP(*ip, *ip32, seq); 1373 CP(*ip, *ip32, key); 1374} 1375 1376int 1377freebsd32_semsys(struct thread *td, struct freebsd32_semsys_args *uap) 1378{ 1379 1380 switch (uap->which) { 1381 case 0: 1382 return (freebsd32_semctl(td, 1383 (struct freebsd32_semctl_args *)&uap->a2)); 1384 default: 1385 return (semsys(td, (struct semsys_args *)uap)); 1386 } 1387} 1388 1389int 1390freebsd32_semctl(struct thread *td, struct freebsd32_semctl_args *uap) 1391{ 1392 struct semid_ds32 dsbuf32; 1393 struct semid_ds dsbuf; 1394 union semun semun; 1395 union semun32 arg; 1396 register_t rval; 1397 int error; 1398 1399 switch (uap->cmd) { 1400 case SEM_STAT: 1401 case IPC_SET: 1402 case IPC_STAT: 1403 case GETALL: 1404 case SETVAL: 1405 case SETALL: 1406 error = copyin(uap->arg, &arg, sizeof(arg)); 1407 if (error) 1408 return (error); 1409 break; 1410 } 1411 1412 switch (uap->cmd) { 1413 case SEM_STAT: 1414 case IPC_STAT: 1415 semun.buf = &dsbuf; 1416 break; 1417 case IPC_SET: 1418 error = copyin(PTRIN(arg.buf), &dsbuf32, sizeof(dsbuf32)); 1419 if (error) 1420 return (error); 1421 freebsd32_ipcperm_in(&dsbuf32.sem_perm, &dsbuf.sem_perm); 1422 PTRIN_CP(dsbuf32, dsbuf, sem_base); 1423 CP(dsbuf32, dsbuf, sem_nsems); 1424 CP(dsbuf32, dsbuf, sem_otime); 1425 CP(dsbuf32, dsbuf, sem_pad1); 1426 CP(dsbuf32, dsbuf, sem_ctime); 1427 CP(dsbuf32, dsbuf, sem_pad2); 1428 CP(dsbuf32, dsbuf, sem_pad3[0]); 1429 CP(dsbuf32, dsbuf, sem_pad3[1]); 1430 CP(dsbuf32, dsbuf, sem_pad3[2]); 1431 CP(dsbuf32, dsbuf, sem_pad3[3]); 1432 semun.buf = &dsbuf; 1433 break; 1434 case GETALL: 1435 case SETALL: 1436 semun.array = PTRIN(arg.array); 1437 break; 1438 case SETVAL: 1439 semun.val = arg.val; 1440 break; 1441 } 1442 1443 error = kern_semctl(td, uap->semid, uap->semnum, uap->cmd, &semun, 1444 &rval); 1445 if (error) 1446 return (error); 1447 1448 switch (uap->cmd) { 1449 case SEM_STAT: 1450 case IPC_STAT: 1451 freebsd32_ipcperm_out(&dsbuf.sem_perm, &dsbuf32.sem_perm); 1452 PTROUT_CP(dsbuf, dsbuf32, sem_base); 1453 CP(dsbuf, dsbuf32, sem_nsems); 1454 CP(dsbuf, dsbuf32, sem_otime); 1455 CP(dsbuf, dsbuf32, sem_pad1); 1456 CP(dsbuf, dsbuf32, sem_ctime); 1457 CP(dsbuf, dsbuf32, sem_pad2); 1458 CP(dsbuf, dsbuf32, sem_pad3[0]); 1459 CP(dsbuf, dsbuf32, sem_pad3[1]); 1460 CP(dsbuf, dsbuf32, sem_pad3[2]); 1461 CP(dsbuf, dsbuf32, sem_pad3[3]); 1462 error = copyout(&dsbuf32, PTRIN(arg.buf), sizeof(dsbuf32)); 1463 break; 1464 } 1465 1466 if (error == 0) 1467 td->td_retval[0] = rval; 1468 return (error); 1469} 1470 1471int 1472freebsd32_msgsys(struct thread *td, struct freebsd32_msgsys_args *uap) 1473{ 1474 1475 switch (uap->which) { 1476 case 0: 1477 return (freebsd32_msgctl(td, 1478 (struct freebsd32_msgctl_args *)&uap->a2)); 1479 case 2: 1480 return (freebsd32_msgsnd(td, 1481 (struct freebsd32_msgsnd_args *)&uap->a2)); 1482 case 3: 1483 return (freebsd32_msgrcv(td, 1484 (struct freebsd32_msgrcv_args *)&uap->a2)); 1485 default: 1486 return (msgsys(td, (struct msgsys_args *)uap)); 1487 } 1488} 1489 1490int 1491freebsd32_msgctl(struct thread *td, struct freebsd32_msgctl_args *uap) 1492{ 1493 struct msqid_ds msqbuf; 1494 struct msqid_ds32 msqbuf32; 1495 int error; 1496 1497 if (uap->cmd == IPC_SET) { 1498 error = copyin(uap->buf, &msqbuf32, sizeof(msqbuf32)); 1499 if (error) 1500 return (error); 1501 freebsd32_ipcperm_in(&msqbuf32.msg_perm, &msqbuf.msg_perm); 1502 PTRIN_CP(msqbuf32, msqbuf, msg_first); 1503 PTRIN_CP(msqbuf32, msqbuf, msg_last); 1504 CP(msqbuf32, msqbuf, msg_cbytes); 1505 CP(msqbuf32, msqbuf, msg_qnum); 1506 CP(msqbuf32, msqbuf, msg_qbytes); 1507 CP(msqbuf32, msqbuf, msg_lspid); 1508 CP(msqbuf32, msqbuf, msg_lrpid); 1509 CP(msqbuf32, msqbuf, msg_stime); 1510 CP(msqbuf32, msqbuf, msg_pad1); 1511 CP(msqbuf32, msqbuf, msg_rtime); 1512 CP(msqbuf32, msqbuf, msg_pad2); 1513 CP(msqbuf32, msqbuf, msg_ctime); 1514 CP(msqbuf32, msqbuf, msg_pad3); 1515 CP(msqbuf32, msqbuf, msg_pad4[0]); 1516 CP(msqbuf32, msqbuf, msg_pad4[1]); 1517 CP(msqbuf32, msqbuf, msg_pad4[2]); 1518 CP(msqbuf32, msqbuf, msg_pad4[3]); 1519 } 1520 error = kern_msgctl(td, uap->msqid, uap->cmd, &msqbuf); 1521 if (error) 1522 return (error); 1523 if (uap->cmd == IPC_STAT) { 1524 freebsd32_ipcperm_out(&msqbuf.msg_perm, &msqbuf32.msg_perm); 1525 PTROUT_CP(msqbuf, msqbuf32, msg_first); 1526 PTROUT_CP(msqbuf, msqbuf32, msg_last); 1527 CP(msqbuf, msqbuf32, msg_cbytes); 1528 CP(msqbuf, msqbuf32, msg_qnum); 1529 CP(msqbuf, msqbuf32, msg_qbytes); 1530 CP(msqbuf, msqbuf32, msg_lspid); 1531 CP(msqbuf, msqbuf32, msg_lrpid); 1532 CP(msqbuf, msqbuf32, msg_stime); 1533 CP(msqbuf, msqbuf32, msg_pad1); 1534 CP(msqbuf, msqbuf32, msg_rtime); 1535 CP(msqbuf, msqbuf32, msg_pad2); 1536 CP(msqbuf, msqbuf32, msg_ctime); 1537 CP(msqbuf, msqbuf32, msg_pad3); 1538 CP(msqbuf, msqbuf32, msg_pad4[0]); 1539 CP(msqbuf, msqbuf32, msg_pad4[1]); 1540 CP(msqbuf, msqbuf32, msg_pad4[2]); 1541 CP(msqbuf, msqbuf32, msg_pad4[3]); 1542 error = copyout(&msqbuf32, uap->buf, sizeof(struct msqid_ds32)); 1543 } 1544 return (error); 1545} 1546 1547int 1548freebsd32_msgsnd(struct thread *td, struct freebsd32_msgsnd_args *uap) 1549{ 1550 const void *msgp; 1551 long mtype; 1552 int32_t mtype32; 1553 int error; 1554 1555 msgp = PTRIN(uap->msgp); 1556 if ((error = copyin(msgp, &mtype32, sizeof(mtype32))) != 0) 1557 return (error); 1558 mtype = mtype32; 1559 return (kern_msgsnd(td, uap->msqid, 1560 (const char *)msgp + sizeof(mtype32), 1561 uap->msgsz, uap->msgflg, mtype)); 1562} 1563 1564int 1565freebsd32_msgrcv(struct thread *td, struct freebsd32_msgrcv_args *uap) 1566{ 1567 void *msgp; 1568 long mtype; 1569 int32_t mtype32; 1570 int error; 1571 1572 msgp = PTRIN(uap->msgp); 1573 if ((error = kern_msgrcv(td, uap->msqid, 1574 (char *)msgp + sizeof(mtype32), uap->msgsz, 1575 uap->msgtyp, uap->msgflg, &mtype)) != 0) 1576 return (error); 1577 mtype32 = (int32_t)mtype; 1578 return (copyout(&mtype32, msgp, sizeof(mtype32))); 1579} 1580 1581int 1582freebsd32_shmsys(struct thread *td, struct freebsd32_shmsys_args *uap) 1583{ 1584 1585 switch (uap->which) { 1586 case 0: { /* shmat */ 1587 struct shmat_args ap; 1588 1589 ap.shmid = uap->a2; 1590 ap.shmaddr = PTRIN(uap->a3); 1591 ap.shmflg = uap->a4; 1592 return (sysent[SYS_shmat].sy_call(td, &ap)); 1593 } 1594 case 2: { /* shmdt */ 1595 struct shmdt_args ap; 1596 1597 ap.shmaddr = PTRIN(uap->a2); 1598 return (sysent[SYS_shmdt].sy_call(td, &ap)); 1599 } 1600 case 3: { /* shmget */ 1601 struct shmget_args ap; 1602 1603 ap.key = uap->a2; 1604 ap.size = uap->a3; 1605 ap.shmflg = uap->a4; 1606 return (sysent[SYS_shmget].sy_call(td, &ap)); 1607 } 1608 case 4: { /* shmctl */ 1609 struct freebsd32_shmctl_args ap; 1610 1611 ap.shmid = uap->a2; 1612 ap.cmd = uap->a3; 1613 ap.buf = PTRIN(uap->a4); 1614 return (freebsd32_shmctl(td, &ap)); 1615 } 1616 case 1: /* oshmctl */ 1617 default: 1618 return (EINVAL); 1619 } 1620} 1621 1622int 1623freebsd32_shmctl(struct thread *td, struct freebsd32_shmctl_args *uap) 1624{ 1625 int error = 0; 1626 union { 1627 struct shmid_ds shmid_ds; 1628 struct shm_info shm_info; 1629 struct shminfo shminfo; 1630 } u; 1631 union { 1632 struct shmid_ds32 shmid_ds32; 1633 struct shm_info32 shm_info32; 1634 struct shminfo32 shminfo32; 1635 } u32; 1636 size_t sz; 1637 1638 if (uap->cmd == IPC_SET) { 1639 if ((error = copyin(uap->buf, &u32.shmid_ds32, 1640 sizeof(u32.shmid_ds32)))) 1641 goto done; 1642 freebsd32_ipcperm_in(&u32.shmid_ds32.shm_perm, 1643 &u.shmid_ds.shm_perm); 1644 CP(u32.shmid_ds32, u.shmid_ds, shm_segsz); 1645 CP(u32.shmid_ds32, u.shmid_ds, shm_lpid); 1646 CP(u32.shmid_ds32, u.shmid_ds, shm_cpid); 1647 CP(u32.shmid_ds32, u.shmid_ds, shm_nattch); 1648 CP(u32.shmid_ds32, u.shmid_ds, shm_atime); 1649 CP(u32.shmid_ds32, u.shmid_ds, shm_dtime); 1650 CP(u32.shmid_ds32, u.shmid_ds, shm_ctime); 1651 PTRIN_CP(u32.shmid_ds32, u.shmid_ds, shm_internal); 1652 } 1653 1654 error = kern_shmctl(td, uap->shmid, uap->cmd, (void *)&u, &sz); 1655 if (error) 1656 goto done; 1657 1658 /* Cases in which we need to copyout */ 1659 switch (uap->cmd) { 1660 case IPC_INFO: 1661 CP(u.shminfo, u32.shminfo32, shmmax); 1662 CP(u.shminfo, u32.shminfo32, shmmin); 1663 CP(u.shminfo, u32.shminfo32, shmmni); 1664 CP(u.shminfo, u32.shminfo32, shmseg); 1665 CP(u.shminfo, u32.shminfo32, shmall); 1666 error = copyout(&u32.shminfo32, uap->buf, 1667 sizeof(u32.shminfo32)); 1668 break; 1669 case SHM_INFO: 1670 CP(u.shm_info, u32.shm_info32, used_ids); 1671 CP(u.shm_info, u32.shm_info32, shm_rss); 1672 CP(u.shm_info, u32.shm_info32, shm_tot); 1673 CP(u.shm_info, u32.shm_info32, shm_swp); 1674 CP(u.shm_info, u32.shm_info32, swap_attempts); 1675 CP(u.shm_info, u32.shm_info32, swap_successes); 1676 error = copyout(&u32.shm_info32, uap->buf, 1677 sizeof(u32.shm_info32)); 1678 break; 1679 case SHM_STAT: 1680 case IPC_STAT: 1681 freebsd32_ipcperm_out(&u.shmid_ds.shm_perm, 1682 &u32.shmid_ds32.shm_perm); 1683 CP(u.shmid_ds, u32.shmid_ds32, shm_segsz); 1684 CP(u.shmid_ds, u32.shmid_ds32, shm_lpid); 1685 CP(u.shmid_ds, u32.shmid_ds32, shm_cpid); 1686 CP(u.shmid_ds, u32.shmid_ds32, shm_nattch); 1687 CP(u.shmid_ds, u32.shmid_ds32, shm_atime); 1688 CP(u.shmid_ds, u32.shmid_ds32, shm_dtime); 1689 CP(u.shmid_ds, u32.shmid_ds32, shm_ctime); 1690 PTROUT_CP(u.shmid_ds, u32.shmid_ds32, shm_internal); 1691 error = copyout(&u32.shmid_ds32, uap->buf, 1692 sizeof(u32.shmid_ds32)); 1693 break; 1694 } 1695 1696done: 1697 if (error) { 1698 /* Invalidate the return value */ 1699 td->td_retval[0] = -1; 1700 } 1701 return (error); 1702} 1703 1704int 1705freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1706{ 1707 struct pread_args ap; 1708 1709 ap.fd = uap->fd; 1710 ap.buf = uap->buf; 1711 ap.nbyte = uap->nbyte; 1712 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1713 return (pread(td, &ap)); 1714} 1715 1716int 1717freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1718{ 1719 struct pwrite_args ap; 1720 1721 ap.fd = uap->fd; 1722 ap.buf = uap->buf; 1723 ap.nbyte = uap->nbyte; 1724 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1725 return (pwrite(td, &ap)); 1726} 1727 1728int 1729freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1730{ 1731 int error; 1732 struct lseek_args ap; 1733 off_t pos; 1734 1735 ap.fd = uap->fd; 1736 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1737 ap.whence = uap->whence; 1738 error = lseek(td, &ap); 1739 /* Expand the quad return into two parts for eax and edx */ 1740 pos = *(off_t *)(td->td_retval); 1741 td->td_retval[0] = pos & 0xffffffff; /* %eax */ 1742 td->td_retval[1] = pos >> 32; /* %edx */ 1743 return error; 1744} 1745 1746int 1747freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1748{ 1749 struct truncate_args ap; 1750 1751 ap.path = uap->path; 1752 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1753 return (truncate(td, &ap)); 1754} 1755 1756int 1757freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1758{ 1759 struct ftruncate_args ap; 1760 1761 ap.fd = uap->fd; 1762 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1763 return (ftruncate(td, &ap)); 1764} 1765 1766int 1767freebsd32_getdirentries(struct thread *td, 1768 struct freebsd32_getdirentries_args *uap) 1769{ 1770 long base; 1771 int32_t base32; 1772 int error; 1773 1774 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base); 1775 if (error) 1776 return (error); 1777 if (uap->basep != NULL) { 1778 base32 = base; 1779 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1780 } 1781 return (error); 1782} 1783 1784#ifdef COMPAT_FREEBSD6 1785/* versions with the 'int pad' argument */ 1786int 1787freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1788{ 1789 struct pread_args ap; 1790 1791 ap.fd = uap->fd; 1792 ap.buf = uap->buf; 1793 ap.nbyte = uap->nbyte; 1794 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1795 return (pread(td, &ap)); 1796} 1797 1798int 1799freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1800{ 1801 struct pwrite_args ap; 1802 1803 ap.fd = uap->fd; 1804 ap.buf = uap->buf; 1805 ap.nbyte = uap->nbyte; 1806 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1807 return (pwrite(td, &ap)); 1808} 1809 1810int 1811freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1812{ 1813 int error; 1814 struct lseek_args ap; 1815 off_t pos; 1816 1817 ap.fd = uap->fd; 1818 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1819 ap.whence = uap->whence; 1820 error = lseek(td, &ap); 1821 /* Expand the quad return into two parts for eax and edx */ 1822 pos = *(off_t *)(td->td_retval); 1823 td->td_retval[0] = pos & 0xffffffff; /* %eax */ 1824 td->td_retval[1] = pos >> 32; /* %edx */ 1825 return error; 1826} 1827 1828int 1829freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1830{ 1831 struct truncate_args ap; 1832 1833 ap.path = uap->path; 1834 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1835 return (truncate(td, &ap)); 1836} 1837 1838int 1839freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1840{ 1841 struct ftruncate_args ap; 1842 1843 ap.fd = uap->fd; 1844 ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32)); 1845 return (ftruncate(td, &ap)); 1846} 1847#endif /* COMPAT_FREEBSD6 */ 1848 1849struct sf_hdtr32 { 1850 uint32_t headers; 1851 int hdr_cnt; 1852 uint32_t trailers; 1853 int trl_cnt; 1854}; 1855 1856static int 1857freebsd32_do_sendfile(struct thread *td, 1858 struct freebsd32_sendfile_args *uap, int compat) 1859{ 1860 struct sendfile_args ap; 1861 struct sf_hdtr32 hdtr32; 1862 struct sf_hdtr hdtr; 1863 struct uio *hdr_uio, *trl_uio; 1864 struct iovec32 *iov32; 1865 int error; 1866 1867 hdr_uio = trl_uio = NULL; 1868 1869 ap.fd = uap->fd; 1870 ap.s = uap->s; 1871 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 1872 ap.nbytes = uap->nbytes; 1873 ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */ 1874 ap.sbytes = uap->sbytes; 1875 ap.flags = uap->flags; 1876 1877 if (uap->hdtr != NULL) { 1878 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1879 if (error) 1880 goto out; 1881 PTRIN_CP(hdtr32, hdtr, headers); 1882 CP(hdtr32, hdtr, hdr_cnt); 1883 PTRIN_CP(hdtr32, hdtr, trailers); 1884 CP(hdtr32, hdtr, trl_cnt); 1885 1886 if (hdtr.headers != NULL) { 1887 iov32 = PTRIN(hdtr32.headers); 1888 error = freebsd32_copyinuio(iov32, 1889 hdtr32.hdr_cnt, &hdr_uio); 1890 if (error) 1891 goto out; 1892 } 1893 if (hdtr.trailers != NULL) { 1894 iov32 = PTRIN(hdtr32.trailers); 1895 error = freebsd32_copyinuio(iov32, 1896 hdtr32.trl_cnt, &trl_uio); 1897 if (error) 1898 goto out; 1899 } 1900 } 1901 1902 error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat); 1903out: 1904 if (hdr_uio) 1905 free(hdr_uio, M_IOV); 1906 if (trl_uio) 1907 free(trl_uio, M_IOV); 1908 return (error); 1909} 1910 1911#ifdef COMPAT_FREEBSD4 1912int 1913freebsd4_freebsd32_sendfile(struct thread *td, 1914 struct freebsd4_freebsd32_sendfile_args *uap) 1915{ 1916 return (freebsd32_do_sendfile(td, 1917 (struct freebsd32_sendfile_args *)uap, 1)); 1918} 1919#endif 1920 1921int 1922freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1923{ 1924 1925 return (freebsd32_do_sendfile(td, uap, 0)); 1926} 1927 1928static void 1929copy_stat( struct stat *in, struct stat32 *out) 1930{ 1931 CP(*in, *out, st_dev); 1932 CP(*in, *out, st_ino); 1933 CP(*in, *out, st_mode); 1934 CP(*in, *out, st_nlink); 1935 CP(*in, *out, st_uid); 1936 CP(*in, *out, st_gid); 1937 CP(*in, *out, st_rdev); 1938 TS_CP(*in, *out, st_atimespec); 1939 TS_CP(*in, *out, st_mtimespec); 1940 TS_CP(*in, *out, st_ctimespec); 1941 CP(*in, *out, st_size); 1942 CP(*in, *out, st_blocks); 1943 CP(*in, *out, st_blksize); 1944 CP(*in, *out, st_flags); 1945 CP(*in, *out, st_gen); 1946} 1947 1948int 1949freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1950{ 1951 struct stat sb; 1952 struct stat32 sb32; 1953 int error; 1954 1955 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1956 if (error) 1957 return (error); 1958 copy_stat(&sb, &sb32); 1959 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1960 return (error); 1961} 1962 1963int 1964freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1965{ 1966 struct stat ub; 1967 struct stat32 ub32; 1968 int error; 1969 1970 error = kern_fstat(td, uap->fd, &ub); 1971 if (error) 1972 return (error); 1973 copy_stat(&ub, &ub32); 1974 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1975 return (error); 1976} 1977 1978int 1979freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1980{ 1981 struct stat ub; 1982 struct stat32 ub32; 1983 int error; 1984 1985 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1986 if (error) 1987 return (error); 1988 copy_stat(&ub, &ub32); 1989 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1990 return (error); 1991} 1992 1993int 1994freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1995{ 1996 struct stat sb; 1997 struct stat32 sb32; 1998 int error; 1999 2000 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 2001 if (error) 2002 return (error); 2003 copy_stat(&sb, &sb32); 2004 error = copyout(&sb32, uap->ub, sizeof (sb32)); 2005 return (error); 2006} 2007 2008/* 2009 * MPSAFE 2010 */ 2011int 2012freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 2013{ 2014 int error, name[CTL_MAXNAME]; 2015 size_t j, oldlen; 2016 2017 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 2018 return (EINVAL); 2019 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 2020 if (error) 2021 return (error); 2022 mtx_lock(&Giant); 2023 if (uap->oldlenp) 2024 oldlen = fuword32(uap->oldlenp); 2025 else 2026 oldlen = 0; 2027 error = userland_sysctl(td, name, uap->namelen, 2028 uap->old, &oldlen, 1, 2029 uap->new, uap->newlen, &j, SCTL_MASK32); 2030 if (error && error != ENOMEM) 2031 goto done2; 2032 if (uap->oldlenp) 2033 suword32(uap->oldlenp, j); 2034done2: 2035 mtx_unlock(&Giant); 2036 return (error); 2037} 2038 2039int 2040freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 2041{ 2042 uint32_t version; 2043 int error; 2044 struct jail j; 2045 2046 error = copyin(uap->jail, &version, sizeof(uint32_t)); 2047 if (error) 2048 return (error); 2049 switch (version) { 2050 case 0: 2051 { 2052 /* FreeBSD single IPv4 jails. */ 2053 struct jail32_v0 j32_v0; 2054 2055 bzero(&j, sizeof(struct jail)); 2056 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 2057 if (error) 2058 return (error); 2059 CP(j32_v0, j, version); 2060 PTRIN_CP(j32_v0, j, path); 2061 PTRIN_CP(j32_v0, j, hostname); 2062 j.ip4s = j32_v0.ip_number; 2063 break; 2064 } 2065 2066 case 1: 2067 /* 2068 * Version 1 was used by multi-IPv4 jail implementations 2069 * that never made it into the official kernel. 2070 */ 2071 return (EINVAL); 2072 2073 case 2: /* JAIL_API_VERSION */ 2074 { 2075 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 2076 struct jail32 j32; 2077 2078 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 2079 if (error) 2080 return (error); 2081 CP(j32, j, version); 2082 PTRIN_CP(j32, j, path); 2083 PTRIN_CP(j32, j, hostname); 2084 PTRIN_CP(j32, j, jailname); 2085 CP(j32, j, ip4s); 2086 CP(j32, j, ip6s); 2087 PTRIN_CP(j32, j, ip4); 2088 PTRIN_CP(j32, j, ip6); 2089 break; 2090 } 2091 2092 default: 2093 /* Sci-Fi jails are not supported, sorry. */ 2094 return (EINVAL); 2095 } 2096 return (kern_jail(td, &j)); 2097} 2098 2099int 2100freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2101{ 2102 struct sigaction32 s32; 2103 struct sigaction sa, osa, *sap; 2104 int error; 2105 2106 if (uap->act) { 2107 error = copyin(uap->act, &s32, sizeof(s32)); 2108 if (error) 2109 return (error); 2110 sa.sa_handler = PTRIN(s32.sa_u); 2111 CP(s32, sa, sa_flags); 2112 CP(s32, sa, sa_mask); 2113 sap = &sa; 2114 } else 2115 sap = NULL; 2116 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2117 if (error == 0 && uap->oact != NULL) { 2118 s32.sa_u = PTROUT(osa.sa_handler); 2119 CP(osa, s32, sa_flags); 2120 CP(osa, s32, sa_mask); 2121 error = copyout(&s32, uap->oact, sizeof(s32)); 2122 } 2123 return (error); 2124} 2125 2126#ifdef COMPAT_FREEBSD4 2127int 2128freebsd4_freebsd32_sigaction(struct thread *td, 2129 struct freebsd4_freebsd32_sigaction_args *uap) 2130{ 2131 struct sigaction32 s32; 2132 struct sigaction sa, osa, *sap; 2133 int error; 2134 2135 if (uap->act) { 2136 error = copyin(uap->act, &s32, sizeof(s32)); 2137 if (error) 2138 return (error); 2139 sa.sa_handler = PTRIN(s32.sa_u); 2140 CP(s32, sa, sa_flags); 2141 CP(s32, sa, sa_mask); 2142 sap = &sa; 2143 } else 2144 sap = NULL; 2145 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2146 if (error == 0 && uap->oact != NULL) { 2147 s32.sa_u = PTROUT(osa.sa_handler); 2148 CP(osa, s32, sa_flags); 2149 CP(osa, s32, sa_mask); 2150 error = copyout(&s32, uap->oact, sizeof(s32)); 2151 } 2152 return (error); 2153} 2154#endif 2155 2156#ifdef COMPAT_43 2157struct osigaction32 { 2158 u_int32_t sa_u; 2159 osigset_t sa_mask; 2160 int sa_flags; 2161}; 2162 2163#define ONSIG 32 2164 2165int 2166ofreebsd32_sigaction(struct thread *td, 2167 struct ofreebsd32_sigaction_args *uap) 2168{ 2169 struct osigaction32 s32; 2170 struct sigaction sa, osa, *sap; 2171 int error; 2172 2173 if (uap->signum <= 0 || uap->signum >= ONSIG) 2174 return (EINVAL); 2175 2176 if (uap->nsa) { 2177 error = copyin(uap->nsa, &s32, sizeof(s32)); 2178 if (error) 2179 return (error); 2180 sa.sa_handler = PTRIN(s32.sa_u); 2181 CP(s32, sa, sa_flags); 2182 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2183 sap = &sa; 2184 } else 2185 sap = NULL; 2186 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2187 if (error == 0 && uap->osa != NULL) { 2188 s32.sa_u = PTROUT(osa.sa_handler); 2189 CP(osa, s32, sa_flags); 2190 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2191 error = copyout(&s32, uap->osa, sizeof(s32)); 2192 } 2193 return (error); 2194} 2195 2196int 2197ofreebsd32_sigprocmask(struct thread *td, 2198 struct ofreebsd32_sigprocmask_args *uap) 2199{ 2200 sigset_t set, oset; 2201 int error; 2202 2203 OSIG2SIG(uap->mask, set); 2204 error = kern_sigprocmask(td, uap->how, &set, &oset, 1); 2205 SIG2OSIG(oset, td->td_retval[0]); 2206 return (error); 2207} 2208 2209int 2210ofreebsd32_sigpending(struct thread *td, 2211 struct ofreebsd32_sigpending_args *uap) 2212{ 2213 struct proc *p = td->td_proc; 2214 sigset_t siglist; 2215 2216 PROC_LOCK(p); 2217 siglist = p->p_siglist; 2218 SIGSETOR(siglist, td->td_siglist); 2219 PROC_UNLOCK(p); 2220 SIG2OSIG(siglist, td->td_retval[0]); 2221 return (0); 2222} 2223 2224struct sigvec32 { 2225 u_int32_t sv_handler; 2226 int sv_mask; 2227 int sv_flags; 2228}; 2229 2230int 2231ofreebsd32_sigvec(struct thread *td, 2232 struct ofreebsd32_sigvec_args *uap) 2233{ 2234 struct sigvec32 vec; 2235 struct sigaction sa, osa, *sap; 2236 int error; 2237 2238 if (uap->signum <= 0 || uap->signum >= ONSIG) 2239 return (EINVAL); 2240 2241 if (uap->nsv) { 2242 error = copyin(uap->nsv, &vec, sizeof(vec)); 2243 if (error) 2244 return (error); 2245 sa.sa_handler = PTRIN(vec.sv_handler); 2246 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2247 sa.sa_flags = vec.sv_flags; 2248 sa.sa_flags ^= SA_RESTART; 2249 sap = &sa; 2250 } else 2251 sap = NULL; 2252 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2253 if (error == 0 && uap->osv != NULL) { 2254 vec.sv_handler = PTROUT(osa.sa_handler); 2255 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2256 vec.sv_flags = osa.sa_flags; 2257 vec.sv_flags &= ~SA_NOCLDWAIT; 2258 vec.sv_flags ^= SA_RESTART; 2259 error = copyout(&vec, uap->osv, sizeof(vec)); 2260 } 2261 return (error); 2262} 2263 2264int 2265ofreebsd32_sigblock(struct thread *td, 2266 struct ofreebsd32_sigblock_args *uap) 2267{ 2268 struct proc *p = td->td_proc; 2269 sigset_t set; 2270 2271 OSIG2SIG(uap->mask, set); 2272 SIG_CANTMASK(set); 2273 PROC_LOCK(p); 2274 SIG2OSIG(td->td_sigmask, td->td_retval[0]); 2275 SIGSETOR(td->td_sigmask, set); 2276 PROC_UNLOCK(p); 2277 return (0); 2278} 2279 2280int 2281ofreebsd32_sigsetmask(struct thread *td, 2282 struct ofreebsd32_sigsetmask_args *uap) 2283{ 2284 struct proc *p = td->td_proc; 2285 sigset_t set; 2286 2287 OSIG2SIG(uap->mask, set); 2288 SIG_CANTMASK(set); 2289 PROC_LOCK(p); 2290 SIG2OSIG(td->td_sigmask, td->td_retval[0]); 2291 SIGSETLO(td->td_sigmask, set); 2292 signotify(td); 2293 PROC_UNLOCK(p); 2294 return (0); 2295} 2296 2297int 2298ofreebsd32_sigsuspend(struct thread *td, 2299 struct ofreebsd32_sigsuspend_args *uap) 2300{ 2301 struct proc *p = td->td_proc; 2302 sigset_t mask; 2303 2304 PROC_LOCK(p); 2305 td->td_oldsigmask = td->td_sigmask; 2306 td->td_pflags |= TDP_OLDMASK; 2307 OSIG2SIG(uap->mask, mask); 2308 SIG_CANTMASK(mask); 2309 SIGSETLO(td->td_sigmask, mask); 2310 signotify(td); 2311 while (msleep(&p->p_sigacts, &p->p_mtx, PPAUSE|PCATCH, "opause", 0) == 0) 2312 /* void */; 2313 PROC_UNLOCK(p); 2314 /* always return EINTR rather than ERESTART... */ 2315 return (EINTR); 2316} 2317 2318struct sigstack32 { 2319 u_int32_t ss_sp; 2320 int ss_onstack; 2321}; 2322 2323int 2324ofreebsd32_sigstack(struct thread *td, 2325 struct ofreebsd32_sigstack_args *uap) 2326{ 2327 struct sigstack32 s32; 2328 struct sigstack nss, oss; 2329 int error = 0, unss; 2330 2331 if (uap->nss != NULL) { 2332 error = copyin(uap->nss, &s32, sizeof(s32)); 2333 if (error) 2334 return (error); 2335 nss.ss_sp = PTRIN(s32.ss_sp); 2336 CP(s32, nss, ss_onstack); 2337 unss = 1; 2338 } else { 2339 unss = 0; 2340 } 2341 oss.ss_sp = td->td_sigstk.ss_sp; 2342 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2343 if (unss) { 2344 td->td_sigstk.ss_sp = nss.ss_sp; 2345 td->td_sigstk.ss_size = 0; 2346 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2347 td->td_pflags |= TDP_ALTSTACK; 2348 } 2349 if (uap->oss != NULL) { 2350 s32.ss_sp = PTROUT(oss.ss_sp); 2351 CP(oss, s32, ss_onstack); 2352 error = copyout(&s32, uap->oss, sizeof(s32)); 2353 } 2354 return (error); 2355} 2356#endif 2357 2358int 2359freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2360{ 2361 struct timespec32 rmt32, rqt32; 2362 struct timespec rmt, rqt; 2363 int error; 2364 2365 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2366 if (error) 2367 return (error); 2368 2369 CP(rqt32, rqt, tv_sec); 2370 CP(rqt32, rqt, tv_nsec); 2371 2372 if (uap->rmtp && 2373 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2374 return (EFAULT); 2375 error = kern_nanosleep(td, &rqt, &rmt); 2376 if (error && uap->rmtp) { 2377 int error2; 2378 2379 CP(rmt, rmt32, tv_sec); 2380 CP(rmt, rmt32, tv_nsec); 2381 2382 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2383 if (error2) 2384 error = error2; 2385 } 2386 return (error); 2387} 2388 2389int 2390freebsd32_clock_gettime(struct thread *td, 2391 struct freebsd32_clock_gettime_args *uap) 2392{ 2393 struct timespec ats; 2394 struct timespec32 ats32; 2395 int error; 2396 2397 error = kern_clock_gettime(td, uap->clock_id, &ats); 2398 if (error == 0) { 2399 CP(ats, ats32, tv_sec); 2400 CP(ats, ats32, tv_nsec); 2401 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2402 } 2403 return (error); 2404} 2405 2406int 2407freebsd32_clock_settime(struct thread *td, 2408 struct freebsd32_clock_settime_args *uap) 2409{ 2410 struct timespec ats; 2411 struct timespec32 ats32; 2412 int error; 2413 2414 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2415 if (error) 2416 return (error); 2417 CP(ats32, ats, tv_sec); 2418 CP(ats32, ats, tv_nsec); 2419 2420 return (kern_clock_settime(td, uap->clock_id, &ats)); 2421} 2422 2423int 2424freebsd32_clock_getres(struct thread *td, 2425 struct freebsd32_clock_getres_args *uap) 2426{ 2427 struct timespec ts; 2428 struct timespec32 ts32; 2429 int error; 2430 2431 if (uap->tp == NULL) 2432 return (0); 2433 error = kern_clock_getres(td, uap->clock_id, &ts); 2434 if (error == 0) { 2435 CP(ts, ts32, tv_sec); 2436 CP(ts, ts32, tv_nsec); 2437 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2438 } 2439 return (error); 2440} 2441 2442int 2443freebsd32_thr_new(struct thread *td, 2444 struct freebsd32_thr_new_args *uap) 2445{ 2446 struct thr_param32 param32; 2447 struct thr_param param; 2448 int error; 2449 2450 if (uap->param_size < 0 || 2451 uap->param_size > sizeof(struct thr_param32)) 2452 return (EINVAL); 2453 bzero(¶m, sizeof(struct thr_param)); 2454 bzero(¶m32, sizeof(struct thr_param32)); 2455 error = copyin(uap->param, ¶m32, uap->param_size); 2456 if (error != 0) 2457 return (error); 2458 param.start_func = PTRIN(param32.start_func); 2459 param.arg = PTRIN(param32.arg); 2460 param.stack_base = PTRIN(param32.stack_base); 2461 param.stack_size = param32.stack_size; 2462 param.tls_base = PTRIN(param32.tls_base); 2463 param.tls_size = param32.tls_size; 2464 param.child_tid = PTRIN(param32.child_tid); 2465 param.parent_tid = PTRIN(param32.parent_tid); 2466 param.flags = param32.flags; 2467 param.rtp = PTRIN(param32.rtp); 2468 param.spare[0] = PTRIN(param32.spare[0]); 2469 param.spare[1] = PTRIN(param32.spare[1]); 2470 param.spare[2] = PTRIN(param32.spare[2]); 2471 2472 return (kern_thr_new(td, ¶m)); 2473} 2474 2475int 2476freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2477{ 2478 struct timespec32 ts32; 2479 struct timespec ts, *tsp; 2480 int error; 2481 2482 error = 0; 2483 tsp = NULL; 2484 if (uap->timeout != NULL) { 2485 error = copyin((const void *)uap->timeout, (void *)&ts32, 2486 sizeof(struct timespec32)); 2487 if (error != 0) 2488 return (error); 2489 ts.tv_sec = ts32.tv_sec; 2490 ts.tv_nsec = ts32.tv_nsec; 2491 tsp = &ts; 2492 } 2493 return (kern_thr_suspend(td, tsp)); 2494} 2495 2496void 2497siginfo_to_siginfo32(siginfo_t *src, struct siginfo32 *dst) 2498{ 2499 bzero(dst, sizeof(*dst)); 2500 dst->si_signo = src->si_signo; 2501 dst->si_errno = src->si_errno; 2502 dst->si_code = src->si_code; 2503 dst->si_pid = src->si_pid; 2504 dst->si_uid = src->si_uid; 2505 dst->si_status = src->si_status; 2506 dst->si_addr = (uintptr_t)src->si_addr; 2507 dst->si_value.sigval_int = src->si_value.sival_int; 2508 dst->si_timerid = src->si_timerid; 2509 dst->si_overrun = src->si_overrun; 2510} 2511 2512int 2513freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2514{ 2515 struct timespec32 ts32; 2516 struct timespec ts; 2517 struct timespec *timeout; 2518 sigset_t set; 2519 ksiginfo_t ksi; 2520 struct siginfo32 si32; 2521 int error; 2522 2523 if (uap->timeout) { 2524 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2525 if (error) 2526 return (error); 2527 ts.tv_sec = ts32.tv_sec; 2528 ts.tv_nsec = ts32.tv_nsec; 2529 timeout = &ts; 2530 } else 2531 timeout = NULL; 2532 2533 error = copyin(uap->set, &set, sizeof(set)); 2534 if (error) 2535 return (error); 2536 2537 error = kern_sigtimedwait(td, set, &ksi, timeout); 2538 if (error) 2539 return (error); 2540 2541 if (uap->info) { 2542 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2543 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2544 } 2545 2546 if (error == 0) 2547 td->td_retval[0] = ksi.ksi_signo; 2548 return (error); 2549} 2550 2551/* 2552 * MPSAFE 2553 */ 2554int 2555freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2556{ 2557 ksiginfo_t ksi; 2558 struct siginfo32 si32; 2559 sigset_t set; 2560 int error; 2561 2562 error = copyin(uap->set, &set, sizeof(set)); 2563 if (error) 2564 return (error); 2565 2566 error = kern_sigtimedwait(td, set, &ksi, NULL); 2567 if (error) 2568 return (error); 2569 2570 if (uap->info) { 2571 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2572 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2573 } 2574 if (error == 0) 2575 td->td_retval[0] = ksi.ksi_signo; 2576 return (error); 2577} 2578 2579int 2580freebsd32_cpuset_setid(struct thread *td, 2581 struct freebsd32_cpuset_setid_args *uap) 2582{ 2583 struct cpuset_setid_args ap; 2584 2585 ap.which = uap->which; 2586 ap.id = (uap->idlo | ((id_t)uap->idhi << 32)); 2587 ap.setid = uap->setid; 2588 2589 return (cpuset_setid(td, &ap)); 2590} 2591 2592int 2593freebsd32_cpuset_getid(struct thread *td, 2594 struct freebsd32_cpuset_getid_args *uap) 2595{ 2596 struct cpuset_getid_args ap; 2597 2598 ap.level = uap->level; 2599 ap.which = uap->which; 2600 ap.id = (uap->idlo | ((id_t)uap->idhi << 32)); 2601 ap.setid = uap->setid; 2602 2603 return (cpuset_getid(td, &ap)); 2604} 2605 2606int 2607freebsd32_cpuset_getaffinity(struct thread *td, 2608 struct freebsd32_cpuset_getaffinity_args *uap) 2609{ 2610 struct cpuset_getaffinity_args ap; 2611 2612 ap.level = uap->level; 2613 ap.which = uap->which; 2614 ap.id = (uap->idlo | ((id_t)uap->idhi << 32)); 2615 ap.cpusetsize = uap->cpusetsize; 2616 ap.mask = uap->mask; 2617 2618 return (cpuset_getaffinity(td, &ap)); 2619} 2620 2621int 2622freebsd32_cpuset_setaffinity(struct thread *td, 2623 struct freebsd32_cpuset_setaffinity_args *uap) 2624{ 2625 struct cpuset_setaffinity_args ap; 2626 2627 ap.level = uap->level; 2628 ap.which = uap->which; 2629 ap.id = (uap->idlo | ((id_t)uap->idhi << 32)); 2630 ap.cpusetsize = uap->cpusetsize; 2631 ap.mask = uap->mask; 2632 2633 return (cpuset_setaffinity(td, &ap)); 2634} 2635 2636int 2637freebsd32_nmount(struct thread *td, 2638 struct freebsd32_nmount_args /* { 2639 struct iovec *iovp; 2640 unsigned int iovcnt; 2641 int flags; 2642 } */ *uap) 2643{ 2644 struct uio *auio; 2645 struct iovec *iov; 2646 int error, k; 2647 2648 AUDIT_ARG(fflags, uap->flags); 2649 2650 /* 2651 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2652 * userspace to set this flag, but we must filter it out if we want 2653 * MNT_UPDATE on the root file system to work. 2654 * MNT_ROOTFS should only be set in the kernel in vfs_mountroot_try(). 2655 */ 2656 uap->flags &= ~MNT_ROOTFS; 2657 2658 /* 2659 * check that we have an even number of iovec's 2660 * and that we have at least two options. 2661 */ 2662 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2663 return (EINVAL); 2664 2665 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2666 if (error) 2667 return (error); 2668 for (iov = auio->uio_iov, k = 0; k < uap->iovcnt; ++k, ++iov) { 2669 if (iov->iov_len > MMAXOPTIONLEN) { 2670 free(auio, M_IOV); 2671 return (EINVAL); 2672 } 2673 } 2674 2675 error = vfs_donmount(td, uap->flags, auio); 2676 free(auio, M_IOV); 2677 return error; 2678} 2679 2680#if 0 2681int 2682freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2683{ 2684 struct yyy32 *p32, s32; 2685 struct yyy *p = NULL, s; 2686 struct xxx_arg ap; 2687 int error; 2688 2689 if (uap->zzz) { 2690 error = copyin(uap->zzz, &s32, sizeof(s32)); 2691 if (error) 2692 return (error); 2693 /* translate in */ 2694 p = &s; 2695 } 2696 error = kern_xxx(td, p); 2697 if (error) 2698 return (error); 2699 if (uap->zzz) { 2700 /* translate out */ 2701 error = copyout(&s32, p32, sizeof(s32)); 2702 } 2703 return (error); 2704} 2705#endif 2706 2707int 2708syscall32_register(int *offset, struct sysent *new_sysent, 2709 struct sysent *old_sysent) 2710{ 2711 if (*offset == NO_SYSCALL) { 2712 int i; 2713 2714 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2715 if (freebsd32_sysent[i].sy_call == 2716 (sy_call_t *)lkmnosys) 2717 break; 2718 if (i == SYS_MAXSYSCALL) 2719 return (ENFILE); 2720 *offset = i; 2721 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2722 return (EINVAL); 2723 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2724 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2725 return (EEXIST); 2726 2727 *old_sysent = freebsd32_sysent[*offset]; 2728 freebsd32_sysent[*offset] = *new_sysent; 2729 return 0; 2730} 2731 2732int 2733syscall32_deregister(int *offset, struct sysent *old_sysent) 2734{ 2735 2736 if (*offset) 2737 freebsd32_sysent[*offset] = *old_sysent; 2738 return 0; 2739} 2740 2741int 2742syscall32_module_handler(struct module *mod, int what, void *arg) 2743{ 2744 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2745 modspecific_t ms; 2746 int error; 2747 2748 switch (what) { 2749 case MOD_LOAD: 2750 error = syscall32_register(data->offset, data->new_sysent, 2751 &data->old_sysent); 2752 if (error) { 2753 /* Leave a mark so we know to safely unload below. */ 2754 data->offset = NULL; 2755 return error; 2756 } 2757 ms.intval = *data->offset; 2758 MOD_XLOCK; 2759 module_setspecific(mod, &ms); 2760 MOD_XUNLOCK; 2761 if (data->chainevh) 2762 error = data->chainevh(mod, what, data->chainarg); 2763 return (error); 2764 case MOD_UNLOAD: 2765 /* 2766 * MOD_LOAD failed, so just return without calling the 2767 * chained handler since we didn't pass along the MOD_LOAD 2768 * event. 2769 */ 2770 if (data->offset == NULL) 2771 return (0); 2772 if (data->chainevh) { 2773 error = data->chainevh(mod, what, data->chainarg); 2774 if (error) 2775 return (error); 2776 } 2777 error = syscall_deregister(data->offset, &data->old_sysent); 2778 return (error); 2779 default: 2780 error = EOPNOTSUPP; 2781 if (data->chainevh) 2782 error = data->chainevh(mod, what, data->chainarg); 2783 return (error); 2784 } 2785} 2786