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 #include "opt_inet.h" 32 #include "opt_inet6.h" 33 34 #define __ELF_WORD_SIZE 32 35 36 #include <sys/param.h> 37 #include <sys/bus.h> 38 #include <sys/clock.h> 39 #include <sys/exec.h> 40 #include <sys/fcntl.h> 41 #include <sys/filedesc.h> 42 #include <sys/imgact.h> 43 #include <sys/jail.h> 44 #include <sys/kernel.h> 45 #include <sys/limits.h> 46 #include <sys/lock.h> 47 #include <sys/malloc.h> 48 #include <sys/file.h> /* Must come after sys/malloc.h */ 49 #include <sys/imgact.h> 50 #include <sys/mbuf.h> 51 #include <sys/mman.h> 52 #include <sys/module.h> 53 #include <sys/mount.h> 54 #include <sys/mutex.h> 55 #include <sys/namei.h> 56 #include <sys/proc.h> 57 #include <sys/reboot.h> 58 #include <sys/resource.h> 59 #include <sys/resourcevar.h> 60 #include <sys/selinfo.h> 61 #include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 62 #include <sys/pipe.h> /* Must come after sys/selinfo.h */ 63 #include <sys/signal.h> 64 #include <sys/signalvar.h> 65 #include <sys/socket.h> 66 #include <sys/socketvar.h> 67 #include <sys/stat.h> 68 #include <sys/syscall.h> 69 #include <sys/syscallsubr.h> 70 #include <sys/sysctl.h> 71 #include <sys/sysent.h> 72 #include <sys/sysproto.h> 73 #include <sys/systm.h> 74 #include <sys/thr.h> 75 #include <sys/unistd.h> 76 #include <sys/ucontext.h> 77 #include <sys/vnode.h> 78 #include <sys/wait.h> 79 #include <sys/ipc.h> 80 #include <sys/msg.h> 81 #include <sys/sem.h> 82 #include <sys/shm.h> 83 84 #ifdef INET 85 #include <netinet/in.h> 86 #endif 87 88 #include <vm/vm.h> 89 #include <vm/vm_kern.h> 90 #include <vm/vm_param.h> 91 #include <vm/pmap.h> 92 #include <vm/vm_map.h> 93 #include <vm/vm_object.h> 94 #include <vm/vm_extern.h> 95 96 #include <machine/cpu.h> 97 #include <machine/elf.h> 98 99 #include <security/audit/audit.h> 100 101 #include <compat/freebsd32/freebsd32_util.h> 102 #include <compat/freebsd32/freebsd32.h> 103 #include <compat/freebsd32/freebsd32_ipc.h> 104 #include <compat/freebsd32/freebsd32_signal.h> 105 #include <compat/freebsd32/freebsd32_proto.h> 106 107 CTASSERT(sizeof(struct timeval32) == 8); 108 CTASSERT(sizeof(struct timespec32) == 8); 109 CTASSERT(sizeof(struct itimerval32) == 16); 110 CTASSERT(sizeof(struct statfs32) == 256); 111 CTASSERT(sizeof(struct rusage32) == 72); 112 CTASSERT(sizeof(struct sigaltstack32) == 12); 113 CTASSERT(sizeof(struct kevent32) == 20); 114 CTASSERT(sizeof(struct iovec32) == 8); 115 CTASSERT(sizeof(struct msghdr32) == 28); 116 CTASSERT(sizeof(struct stat32) == 96); 117 CTASSERT(sizeof(struct sigaction32) == 24); 118 119 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 120 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 121 122 #if BYTE_ORDER == BIG_ENDIAN 123 #define PAIR32TO64(type, name) ((name ## 2) | ((type)(name ## 1) << 32)) 124 #define RETVAL_HI 0 125 #define RETVAL_LO 1 126 #else 127 #define PAIR32TO64(type, name) ((name ## 1) | ((type)(name ## 2) << 32)) 128 #define RETVAL_HI 1 129 #define RETVAL_LO 0 130 #endif 131 132 void 133 freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 134 { 135 136 TV_CP(*s, *s32, ru_utime); 137 TV_CP(*s, *s32, ru_stime); 138 CP(*s, *s32, ru_maxrss); 139 CP(*s, *s32, ru_ixrss); 140 CP(*s, *s32, ru_idrss); 141 CP(*s, *s32, ru_isrss); 142 CP(*s, *s32, ru_minflt); 143 CP(*s, *s32, ru_majflt); 144 CP(*s, *s32, ru_nswap); 145 CP(*s, *s32, ru_inblock); 146 CP(*s, *s32, ru_oublock); 147 CP(*s, *s32, ru_msgsnd); 148 CP(*s, *s32, ru_msgrcv); 149 CP(*s, *s32, ru_nsignals); 150 CP(*s, *s32, ru_nvcsw); 151 CP(*s, *s32, ru_nivcsw); 152 } 153 154 int 155 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 156 { 157 int error, status; 158 struct rusage32 ru32; 159 struct rusage ru, *rup; 160 161 if (uap->rusage != NULL) 162 rup = &ru; 163 else 164 rup = NULL; 165 error = kern_wait(td, uap->pid, &status, uap->options, rup); 166 if (error) 167 return (error); 168 if (uap->status != NULL) 169 error = copyout(&status, uap->status, sizeof(status)); 170 if (uap->rusage != NULL && error == 0) { 171 freebsd32_rusage_out(&ru, &ru32); 172 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 173 } 174 return (error); 175 } 176 177 #ifdef COMPAT_FREEBSD4 178 static void 179 copy_statfs(struct statfs *in, struct statfs32 *out) 180 { 181 182 statfs_scale_blocks(in, INT32_MAX); 183 bzero(out, sizeof(*out)); 184 CP(*in, *out, f_bsize); 185 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 186 CP(*in, *out, f_blocks); 187 CP(*in, *out, f_bfree); 188 CP(*in, *out, f_bavail); 189 out->f_files = MIN(in->f_files, INT32_MAX); 190 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 191 CP(*in, *out, f_fsid); 192 CP(*in, *out, f_owner); 193 CP(*in, *out, f_type); 194 CP(*in, *out, f_flags); 195 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 196 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 197 strlcpy(out->f_fstypename, 198 in->f_fstypename, MFSNAMELEN); 199 strlcpy(out->f_mntonname, 200 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 201 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 202 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 203 strlcpy(out->f_mntfromname, 204 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 205 } 206 #endif 207 208 #ifdef COMPAT_FREEBSD4 209 int 210 freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 211 { 212 struct statfs *buf, *sp; 213 struct statfs32 stat32; 214 size_t count, size; 215 int error; 216 217 count = uap->bufsize / sizeof(struct statfs32); 218 size = count * sizeof(struct statfs); 219 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags); 220 if (size > 0) { 221 count = td->td_retval[0]; 222 sp = buf; 223 while (count > 0 && error == 0) { 224 copy_statfs(sp, &stat32); 225 error = copyout(&stat32, uap->buf, sizeof(stat32)); 226 sp++; 227 uap->buf++; 228 count--; 229 } 230 free(buf, M_TEMP); 231 } 232 return (error); 233 } 234 #endif 235 236 int 237 freebsd32_sigaltstack(struct thread *td, 238 struct freebsd32_sigaltstack_args *uap) 239 { 240 struct sigaltstack32 s32; 241 struct sigaltstack ss, oss, *ssp; 242 int error; 243 244 if (uap->ss != NULL) { 245 error = copyin(uap->ss, &s32, sizeof(s32)); 246 if (error) 247 return (error); 248 PTRIN_CP(s32, ss, ss_sp); 249 CP(s32, ss, ss_size); 250 CP(s32, ss, ss_flags); 251 ssp = &ss; 252 } else 253 ssp = NULL; 254 error = kern_sigaltstack(td, ssp, &oss); 255 if (error == 0 && uap->oss != NULL) { 256 PTROUT_CP(oss, s32, ss_sp); 257 CP(oss, s32, ss_size); 258 CP(oss, s32, ss_flags); 259 error = copyout(&s32, uap->oss, sizeof(s32)); 260 } 261 return (error); 262 } 263 264 /* 265 * Custom version of exec_copyin_args() so that we can translate 266 * the pointers. 267 */ 268 static int 269 freebsd32_exec_copyin_args(struct image_args *args, char *fname, 270 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 271 { 272 char *argp, *envp; 273 u_int32_t *p32, arg; 274 size_t length; 275 int error; 276 277 bzero(args, sizeof(*args)); 278 if (argv == NULL) 279 return (EFAULT); 280 281 /* 282 * Allocate temporary demand zeroed space for argument and 283 * environment strings 284 */ 285 args->buf = (char *) kmem_alloc_wait(exec_map, 286 PATH_MAX + ARG_MAX + MAXSHELLCMDLEN); 287 if (args->buf == NULL) 288 return (ENOMEM); 289 args->begin_argv = args->buf; 290 args->endp = args->begin_argv; 291 args->stringspace = ARG_MAX; 292 293 /* 294 * Copy the file name. 295 */ 296 if (fname != NULL) { 297 args->fname = args->buf + ARG_MAX; 298 error = (segflg == UIO_SYSSPACE) ? 299 copystr(fname, args->fname, PATH_MAX, &length) : 300 copyinstr(fname, args->fname, PATH_MAX, &length); 301 if (error != 0) 302 goto err_exit; 303 } else 304 args->fname = NULL; 305 306 /* 307 * extract arguments first 308 */ 309 p32 = argv; 310 for (;;) { 311 error = copyin(p32++, &arg, sizeof(arg)); 312 if (error) 313 goto err_exit; 314 if (arg == 0) 315 break; 316 argp = PTRIN(arg); 317 error = copyinstr(argp, args->endp, args->stringspace, &length); 318 if (error) { 319 if (error == ENAMETOOLONG) 320 error = E2BIG; 321 goto err_exit; 322 } 323 args->stringspace -= length; 324 args->endp += length; 325 args->argc++; 326 } 327 328 args->begin_envv = args->endp; 329 330 /* 331 * extract environment strings 332 */ 333 if (envv) { 334 p32 = envv; 335 for (;;) { 336 error = copyin(p32++, &arg, sizeof(arg)); 337 if (error) 338 goto err_exit; 339 if (arg == 0) 340 break; 341 envp = PTRIN(arg); 342 error = copyinstr(envp, args->endp, args->stringspace, 343 &length); 344 if (error) { 345 if (error == ENAMETOOLONG) 346 error = E2BIG; 347 goto err_exit; 348 } 349 args->stringspace -= length; 350 args->endp += length; 351 args->envc++; 352 } 353 } 354 355 return (0); 356 357 err_exit: 358 kmem_free_wakeup(exec_map, (vm_offset_t)args->buf, 359 PATH_MAX + ARG_MAX + MAXSHELLCMDLEN); 360 args->buf = NULL; 361 return (error); 362 } 363 364 int 365 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 366 { 367 struct image_args eargs; 368 int error; 369 370 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 371 uap->argv, uap->envv); 372 if (error == 0) 373 error = kern_execve(td, &eargs, NULL); 374 return (error); 375 } 376 377 int 378 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 379 { 380 struct image_args eargs; 381 int error; 382 383 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 384 uap->argv, uap->envv); 385 if (error == 0) { 386 eargs.fd = uap->fd; 387 error = kern_execve(td, &eargs, NULL); 388 } 389 return (error); 390 } 391 392 #ifdef __ia64__ 393 static int 394 freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 395 int prot, int fd, off_t pos) 396 { 397 vm_map_t map; 398 vm_map_entry_t entry; 399 int rv; 400 401 map = &td->td_proc->p_vmspace->vm_map; 402 if (fd != -1) 403 prot |= VM_PROT_WRITE; 404 405 if (vm_map_lookup_entry(map, start, &entry)) { 406 if ((entry->protection & prot) != prot) { 407 rv = vm_map_protect(map, 408 trunc_page(start), 409 round_page(end), 410 entry->protection | prot, 411 FALSE); 412 if (rv != KERN_SUCCESS) 413 return (EINVAL); 414 } 415 } else { 416 vm_offset_t addr = trunc_page(start); 417 rv = vm_map_find(map, 0, 0, 418 &addr, PAGE_SIZE, FALSE, prot, 419 VM_PROT_ALL, 0); 420 if (rv != KERN_SUCCESS) 421 return (EINVAL); 422 } 423 424 if (fd != -1) { 425 struct pread_args r; 426 r.fd = fd; 427 r.buf = (void *) start; 428 r.nbyte = end - start; 429 r.offset = pos; 430 return (pread(td, &r)); 431 } else { 432 while (start < end) { 433 subyte((void *) start, 0); 434 start++; 435 } 436 return (0); 437 } 438 } 439 #endif 440 441 int 442 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 443 { 444 struct mmap_args ap; 445 vm_offset_t addr = (vm_offset_t) uap->addr; 446 vm_size_t len = uap->len; 447 int prot = uap->prot; 448 int flags = uap->flags; 449 int fd = uap->fd; 450 off_t pos = PAIR32TO64(off_t,uap->pos); 451 #ifdef __ia64__ 452 vm_size_t pageoff; 453 int error; 454 455 /* 456 * Attempt to handle page size hassles. 457 */ 458 pageoff = (pos & PAGE_MASK); 459 if (flags & MAP_FIXED) { 460 vm_offset_t start, end; 461 start = addr; 462 end = addr + len; 463 464 if (start != trunc_page(start)) { 465 error = freebsd32_mmap_partial(td, start, 466 round_page(start), prot, 467 fd, pos); 468 if (fd != -1) 469 pos += round_page(start) - start; 470 start = round_page(start); 471 } 472 if (end != round_page(end)) { 473 vm_offset_t t = trunc_page(end); 474 error = freebsd32_mmap_partial(td, t, end, 475 prot, fd, 476 pos + t - start); 477 end = trunc_page(end); 478 } 479 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 480 /* 481 * We can't map this region at all. The specified 482 * address doesn't have the same alignment as the file 483 * position. Fake the mapping by simply reading the 484 * entire region into memory. First we need to make 485 * sure the region exists. 486 */ 487 vm_map_t map; 488 struct pread_args r; 489 int rv; 490 491 prot |= VM_PROT_WRITE; 492 map = &td->td_proc->p_vmspace->vm_map; 493 rv = vm_map_remove(map, start, end); 494 if (rv != KERN_SUCCESS) 495 return (EINVAL); 496 rv = vm_map_find(map, 0, 0, 497 &start, end - start, FALSE, 498 prot, VM_PROT_ALL, 0); 499 if (rv != KERN_SUCCESS) 500 return (EINVAL); 501 r.fd = fd; 502 r.buf = (void *) start; 503 r.nbyte = end - start; 504 r.offset = pos; 505 error = pread(td, &r); 506 if (error) 507 return (error); 508 509 td->td_retval[0] = addr; 510 return (0); 511 } 512 if (end == start) { 513 /* 514 * After dealing with the ragged ends, there 515 * might be none left. 516 */ 517 td->td_retval[0] = addr; 518 return (0); 519 } 520 addr = start; 521 len = end - start; 522 } 523 #endif 524 525 ap.addr = (void *) addr; 526 ap.len = len; 527 ap.prot = prot; 528 ap.flags = flags; 529 ap.fd = fd; 530 ap.pos = pos; 531 532 return (mmap(td, &ap)); 533 } 534 535 #ifdef COMPAT_FREEBSD6 536 int 537 freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 538 { 539 struct freebsd32_mmap_args ap; 540 541 ap.addr = uap->addr; 542 ap.len = uap->len; 543 ap.prot = uap->prot; 544 ap.flags = uap->flags; 545 ap.fd = uap->fd; 546 ap.pos1 = uap->pos1; 547 ap.pos2 = uap->pos2; 548 549 return (freebsd32_mmap(td, &ap)); 550 } 551 #endif 552 553 int 554 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 555 { 556 struct itimerval itv, oitv, *itvp; 557 struct itimerval32 i32; 558 int error; 559 560 if (uap->itv != NULL) { 561 error = copyin(uap->itv, &i32, sizeof(i32)); 562 if (error) 563 return (error); 564 TV_CP(i32, itv, it_interval); 565 TV_CP(i32, itv, it_value); 566 itvp = &itv; 567 } else 568 itvp = NULL; 569 error = kern_setitimer(td, uap->which, itvp, &oitv); 570 if (error || uap->oitv == NULL) 571 return (error); 572 TV_CP(oitv, i32, it_interval); 573 TV_CP(oitv, i32, it_value); 574 return (copyout(&i32, uap->oitv, sizeof(i32))); 575 } 576 577 int 578 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 579 { 580 struct itimerval itv; 581 struct itimerval32 i32; 582 int error; 583 584 error = kern_getitimer(td, uap->which, &itv); 585 if (error || uap->itv == NULL) 586 return (error); 587 TV_CP(itv, i32, it_interval); 588 TV_CP(itv, i32, it_value); 589 return (copyout(&i32, uap->itv, sizeof(i32))); 590 } 591 592 int 593 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 594 { 595 struct timeval32 tv32; 596 struct timeval tv, *tvp; 597 int error; 598 599 if (uap->tv != NULL) { 600 error = copyin(uap->tv, &tv32, sizeof(tv32)); 601 if (error) 602 return (error); 603 CP(tv32, tv, tv_sec); 604 CP(tv32, tv, tv_usec); 605 tvp = &tv; 606 } else 607 tvp = NULL; 608 /* 609 * XXX Do pointers need PTRIN()? 610 */ 611 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 612 sizeof(int32_t) * 8)); 613 } 614 615 int 616 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 617 { 618 struct timespec32 ts32; 619 struct timespec ts; 620 struct timeval tv, *tvp; 621 sigset_t set, *uset; 622 int error; 623 624 if (uap->ts != NULL) { 625 error = copyin(uap->ts, &ts32, sizeof(ts32)); 626 if (error != 0) 627 return (error); 628 CP(ts32, ts, tv_sec); 629 CP(ts32, ts, tv_nsec); 630 TIMESPEC_TO_TIMEVAL(&tv, &ts); 631 tvp = &tv; 632 } else 633 tvp = NULL; 634 if (uap->sm != NULL) { 635 error = copyin(uap->sm, &set, sizeof(set)); 636 if (error != 0) 637 return (error); 638 uset = &set; 639 } else 640 uset = NULL; 641 /* 642 * XXX Do pointers need PTRIN()? 643 */ 644 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 645 uset, sizeof(int32_t) * 8); 646 return (error); 647 } 648 649 /* 650 * Copy 'count' items into the destination list pointed to by uap->eventlist. 651 */ 652 static int 653 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 654 { 655 struct freebsd32_kevent_args *uap; 656 struct kevent32 ks32[KQ_NEVENTS]; 657 int i, error = 0; 658 659 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 660 uap = (struct freebsd32_kevent_args *)arg; 661 662 for (i = 0; i < count; i++) { 663 CP(kevp[i], ks32[i], ident); 664 CP(kevp[i], ks32[i], filter); 665 CP(kevp[i], ks32[i], flags); 666 CP(kevp[i], ks32[i], fflags); 667 CP(kevp[i], ks32[i], data); 668 PTROUT_CP(kevp[i], ks32[i], udata); 669 } 670 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 671 if (error == 0) 672 uap->eventlist += count; 673 return (error); 674 } 675 676 /* 677 * Copy 'count' items from the list pointed to by uap->changelist. 678 */ 679 static int 680 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 681 { 682 struct freebsd32_kevent_args *uap; 683 struct kevent32 ks32[KQ_NEVENTS]; 684 int i, error = 0; 685 686 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 687 uap = (struct freebsd32_kevent_args *)arg; 688 689 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 690 if (error) 691 goto done; 692 uap->changelist += count; 693 694 for (i = 0; i < count; i++) { 695 CP(ks32[i], kevp[i], ident); 696 CP(ks32[i], kevp[i], filter); 697 CP(ks32[i], kevp[i], flags); 698 CP(ks32[i], kevp[i], fflags); 699 CP(ks32[i], kevp[i], data); 700 PTRIN_CP(ks32[i], kevp[i], udata); 701 } 702 done: 703 return (error); 704 } 705 706 int 707 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 708 { 709 struct timespec32 ts32; 710 struct timespec ts, *tsp; 711 struct kevent_copyops k_ops = { uap, 712 freebsd32_kevent_copyout, 713 freebsd32_kevent_copyin}; 714 int error; 715 716 717 if (uap->timeout) { 718 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 719 if (error) 720 return (error); 721 CP(ts32, ts, tv_sec); 722 CP(ts32, ts, tv_nsec); 723 tsp = &ts; 724 } else 725 tsp = NULL; 726 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 727 &k_ops, tsp); 728 return (error); 729 } 730 731 int 732 freebsd32_gettimeofday(struct thread *td, 733 struct freebsd32_gettimeofday_args *uap) 734 { 735 struct timeval atv; 736 struct timeval32 atv32; 737 struct timezone rtz; 738 int error = 0; 739 740 if (uap->tp) { 741 microtime(&atv); 742 CP(atv, atv32, tv_sec); 743 CP(atv, atv32, tv_usec); 744 error = copyout(&atv32, uap->tp, sizeof (atv32)); 745 } 746 if (error == 0 && uap->tzp != NULL) { 747 rtz.tz_minuteswest = tz_minuteswest; 748 rtz.tz_dsttime = tz_dsttime; 749 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 750 } 751 return (error); 752 } 753 754 int 755 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 756 { 757 struct rusage32 s32; 758 struct rusage s; 759 int error; 760 761 error = kern_getrusage(td, uap->who, &s); 762 if (error) 763 return (error); 764 if (uap->rusage != NULL) { 765 freebsd32_rusage_out(&s, &s32); 766 error = copyout(&s32, uap->rusage, sizeof(s32)); 767 } 768 return (error); 769 } 770 771 static int 772 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 773 { 774 struct iovec32 iov32; 775 struct iovec *iov; 776 struct uio *uio; 777 u_int iovlen; 778 int error, i; 779 780 *uiop = NULL; 781 if (iovcnt > UIO_MAXIOV) 782 return (EINVAL); 783 iovlen = iovcnt * sizeof(struct iovec); 784 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 785 iov = (struct iovec *)(uio + 1); 786 for (i = 0; i < iovcnt; i++) { 787 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 788 if (error) { 789 free(uio, M_IOV); 790 return (error); 791 } 792 iov[i].iov_base = PTRIN(iov32.iov_base); 793 iov[i].iov_len = iov32.iov_len; 794 } 795 uio->uio_iov = iov; 796 uio->uio_iovcnt = iovcnt; 797 uio->uio_segflg = UIO_USERSPACE; 798 uio->uio_offset = -1; 799 uio->uio_resid = 0; 800 for (i = 0; i < iovcnt; i++) { 801 if (iov->iov_len > INT_MAX - uio->uio_resid) { 802 free(uio, M_IOV); 803 return (EINVAL); 804 } 805 uio->uio_resid += iov->iov_len; 806 iov++; 807 } 808 *uiop = uio; 809 return (0); 810 } 811 812 int 813 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 814 { 815 struct uio *auio; 816 int error; 817 818 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 819 if (error) 820 return (error); 821 error = kern_readv(td, uap->fd, auio); 822 free(auio, M_IOV); 823 return (error); 824 } 825 826 int 827 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 828 { 829 struct uio *auio; 830 int error; 831 832 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 833 if (error) 834 return (error); 835 error = kern_writev(td, uap->fd, auio); 836 free(auio, M_IOV); 837 return (error); 838 } 839 840 int 841 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 842 { 843 struct uio *auio; 844 int error; 845 846 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 847 if (error) 848 return (error); 849 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 850 free(auio, M_IOV); 851 return (error); 852 } 853 854 int 855 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 856 { 857 struct uio *auio; 858 int error; 859 860 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 861 if (error) 862 return (error); 863 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 864 free(auio, M_IOV); 865 return (error); 866 } 867 868 int 869 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 870 int error) 871 { 872 struct iovec32 iov32; 873 struct iovec *iov; 874 u_int iovlen; 875 int i; 876 877 *iovp = NULL; 878 if (iovcnt > UIO_MAXIOV) 879 return (error); 880 iovlen = iovcnt * sizeof(struct iovec); 881 iov = malloc(iovlen, M_IOV, M_WAITOK); 882 for (i = 0; i < iovcnt; i++) { 883 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 884 if (error) { 885 free(iov, M_IOV); 886 return (error); 887 } 888 iov[i].iov_base = PTRIN(iov32.iov_base); 889 iov[i].iov_len = iov32.iov_len; 890 } 891 *iovp = iov; 892 return (0); 893 } 894 895 static int 896 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 897 { 898 struct msghdr32 m32; 899 int error; 900 901 error = copyin(msg32, &m32, sizeof(m32)); 902 if (error) 903 return (error); 904 msg->msg_name = PTRIN(m32.msg_name); 905 msg->msg_namelen = m32.msg_namelen; 906 msg->msg_iov = PTRIN(m32.msg_iov); 907 msg->msg_iovlen = m32.msg_iovlen; 908 msg->msg_control = PTRIN(m32.msg_control); 909 msg->msg_controllen = m32.msg_controllen; 910 msg->msg_flags = m32.msg_flags; 911 return (0); 912 } 913 914 static int 915 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 916 { 917 struct msghdr32 m32; 918 int error; 919 920 m32.msg_name = PTROUT(msg->msg_name); 921 m32.msg_namelen = msg->msg_namelen; 922 m32.msg_iov = PTROUT(msg->msg_iov); 923 m32.msg_iovlen = msg->msg_iovlen; 924 m32.msg_control = PTROUT(msg->msg_control); 925 m32.msg_controllen = msg->msg_controllen; 926 m32.msg_flags = msg->msg_flags; 927 error = copyout(&m32, msg32, sizeof(m32)); 928 return (error); 929 } 930 931 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 932 #define FREEBSD32_ALIGN(p) \ 933 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 934 #define FREEBSD32_CMSG_SPACE(l) \ 935 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 936 937 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 938 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 939 static int 940 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 941 { 942 struct cmsghdr *cm; 943 void *data; 944 socklen_t clen, datalen; 945 int error; 946 caddr_t ctlbuf; 947 int len, maxlen, copylen; 948 struct mbuf *m; 949 error = 0; 950 951 len = msg->msg_controllen; 952 maxlen = msg->msg_controllen; 953 msg->msg_controllen = 0; 954 955 m = control; 956 ctlbuf = msg->msg_control; 957 958 while (m && len > 0) { 959 cm = mtod(m, struct cmsghdr *); 960 clen = m->m_len; 961 962 while (cm != NULL) { 963 964 if (sizeof(struct cmsghdr) > clen || 965 cm->cmsg_len > clen) { 966 error = EINVAL; 967 break; 968 } 969 970 data = CMSG_DATA(cm); 971 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 972 973 /* Adjust message length */ 974 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 975 datalen; 976 977 978 /* Copy cmsghdr */ 979 copylen = sizeof(struct cmsghdr); 980 if (len < copylen) { 981 msg->msg_flags |= MSG_CTRUNC; 982 copylen = len; 983 } 984 985 error = copyout(cm,ctlbuf,copylen); 986 if (error) 987 goto exit; 988 989 ctlbuf += FREEBSD32_ALIGN(copylen); 990 len -= FREEBSD32_ALIGN(copylen); 991 992 if (len <= 0) 993 break; 994 995 /* Copy data */ 996 copylen = datalen; 997 if (len < copylen) { 998 msg->msg_flags |= MSG_CTRUNC; 999 copylen = len; 1000 } 1001 1002 error = copyout(data,ctlbuf,copylen); 1003 if (error) 1004 goto exit; 1005 1006 ctlbuf += FREEBSD32_ALIGN(copylen); 1007 len -= FREEBSD32_ALIGN(copylen); 1008 1009 if (CMSG_SPACE(datalen) < clen) { 1010 clen -= CMSG_SPACE(datalen); 1011 cm = (struct cmsghdr *) 1012 ((caddr_t)cm + CMSG_SPACE(datalen)); 1013 } else { 1014 clen = 0; 1015 cm = NULL; 1016 } 1017 } 1018 m = m->m_next; 1019 } 1020 1021 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 1022 1023 exit: 1024 return (error); 1025 1026 } 1027 1028 int 1029 freebsd32_recvmsg(td, uap) 1030 struct thread *td; 1031 struct freebsd32_recvmsg_args /* { 1032 int s; 1033 struct msghdr32 *msg; 1034 int flags; 1035 } */ *uap; 1036 { 1037 struct msghdr msg; 1038 struct msghdr32 m32; 1039 struct iovec *uiov, *iov; 1040 struct mbuf *control = NULL; 1041 struct mbuf **controlp; 1042 1043 int error; 1044 error = copyin(uap->msg, &m32, sizeof(m32)); 1045 if (error) 1046 return (error); 1047 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1048 if (error) 1049 return (error); 1050 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1051 EMSGSIZE); 1052 if (error) 1053 return (error); 1054 msg.msg_flags = uap->flags; 1055 uiov = msg.msg_iov; 1056 msg.msg_iov = iov; 1057 1058 controlp = (msg.msg_control != NULL) ? &control : NULL; 1059 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1060 if (error == 0) { 1061 msg.msg_iov = uiov; 1062 1063 if (control != NULL) 1064 error = freebsd32_copy_msg_out(&msg, control); 1065 1066 if (error == 0) 1067 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1068 } 1069 free(iov, M_IOV); 1070 1071 if (control != NULL) 1072 m_freem(control); 1073 1074 return (error); 1075 } 1076 1077 1078 static int 1079 freebsd32_convert_msg_in(struct mbuf **controlp) 1080 { 1081 struct mbuf *control = *controlp; 1082 struct cmsghdr *cm = mtod(control, struct cmsghdr *); 1083 void *data; 1084 socklen_t clen = control->m_len, datalen; 1085 int error; 1086 1087 error = 0; 1088 *controlp = NULL; 1089 1090 while (cm != NULL) { 1091 if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) { 1092 error = EINVAL; 1093 break; 1094 } 1095 1096 data = FREEBSD32_CMSG_DATA(cm); 1097 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1098 1099 *controlp = sbcreatecontrol(data, datalen, cm->cmsg_type, 1100 cm->cmsg_level); 1101 controlp = &(*controlp)->m_next; 1102 1103 if (FREEBSD32_CMSG_SPACE(datalen) < clen) { 1104 clen -= FREEBSD32_CMSG_SPACE(datalen); 1105 cm = (struct cmsghdr *) 1106 ((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen)); 1107 } else { 1108 clen = 0; 1109 cm = NULL; 1110 } 1111 } 1112 1113 m_freem(control); 1114 return (error); 1115 } 1116 1117 1118 int 1119 freebsd32_sendmsg(struct thread *td, 1120 struct freebsd32_sendmsg_args *uap) 1121 { 1122 struct msghdr msg; 1123 struct msghdr32 m32; 1124 struct iovec *iov; 1125 struct mbuf *control = NULL; 1126 struct sockaddr *to = NULL; 1127 int error; 1128 1129 error = copyin(uap->msg, &m32, sizeof(m32)); 1130 if (error) 1131 return (error); 1132 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1133 if (error) 1134 return (error); 1135 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1136 EMSGSIZE); 1137 if (error) 1138 return (error); 1139 msg.msg_iov = iov; 1140 if (msg.msg_name != NULL) { 1141 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1142 if (error) { 1143 to = NULL; 1144 goto out; 1145 } 1146 msg.msg_name = to; 1147 } 1148 1149 if (msg.msg_control) { 1150 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1151 error = EINVAL; 1152 goto out; 1153 } 1154 1155 error = sockargs(&control, msg.msg_control, 1156 msg.msg_controllen, MT_CONTROL); 1157 if (error) 1158 goto out; 1159 1160 error = freebsd32_convert_msg_in(&control); 1161 if (error) 1162 goto out; 1163 } 1164 1165 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1166 UIO_USERSPACE); 1167 1168 out: 1169 free(iov, M_IOV); 1170 if (to) 1171 free(to, M_SONAME); 1172 return (error); 1173 } 1174 1175 int 1176 freebsd32_recvfrom(struct thread *td, 1177 struct freebsd32_recvfrom_args *uap) 1178 { 1179 struct msghdr msg; 1180 struct iovec aiov; 1181 int error; 1182 1183 if (uap->fromlenaddr) { 1184 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1185 sizeof(msg.msg_namelen)); 1186 if (error) 1187 return (error); 1188 } else { 1189 msg.msg_namelen = 0; 1190 } 1191 1192 msg.msg_name = PTRIN(uap->from); 1193 msg.msg_iov = &aiov; 1194 msg.msg_iovlen = 1; 1195 aiov.iov_base = PTRIN(uap->buf); 1196 aiov.iov_len = uap->len; 1197 msg.msg_control = NULL; 1198 msg.msg_flags = uap->flags; 1199 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1200 if (error == 0 && uap->fromlenaddr) 1201 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1202 sizeof (msg.msg_namelen)); 1203 return (error); 1204 } 1205 1206 int 1207 freebsd32_settimeofday(struct thread *td, 1208 struct freebsd32_settimeofday_args *uap) 1209 { 1210 struct timeval32 tv32; 1211 struct timeval tv, *tvp; 1212 struct timezone tz, *tzp; 1213 int error; 1214 1215 if (uap->tv) { 1216 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1217 if (error) 1218 return (error); 1219 CP(tv32, tv, tv_sec); 1220 CP(tv32, tv, tv_usec); 1221 tvp = &tv; 1222 } else 1223 tvp = NULL; 1224 if (uap->tzp) { 1225 error = copyin(uap->tzp, &tz, sizeof(tz)); 1226 if (error) 1227 return (error); 1228 tzp = &tz; 1229 } else 1230 tzp = NULL; 1231 return (kern_settimeofday(td, tvp, tzp)); 1232 } 1233 1234 int 1235 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1236 { 1237 struct timeval32 s32[2]; 1238 struct timeval s[2], *sp; 1239 int error; 1240 1241 if (uap->tptr != NULL) { 1242 error = copyin(uap->tptr, s32, sizeof(s32)); 1243 if (error) 1244 return (error); 1245 CP(s32[0], s[0], tv_sec); 1246 CP(s32[0], s[0], tv_usec); 1247 CP(s32[1], s[1], tv_sec); 1248 CP(s32[1], s[1], tv_usec); 1249 sp = s; 1250 } else 1251 sp = NULL; 1252 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1253 } 1254 1255 int 1256 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1257 { 1258 struct timeval32 s32[2]; 1259 struct timeval s[2], *sp; 1260 int error; 1261 1262 if (uap->tptr != NULL) { 1263 error = copyin(uap->tptr, s32, sizeof(s32)); 1264 if (error) 1265 return (error); 1266 CP(s32[0], s[0], tv_sec); 1267 CP(s32[0], s[0], tv_usec); 1268 CP(s32[1], s[1], tv_sec); 1269 CP(s32[1], s[1], tv_usec); 1270 sp = s; 1271 } else 1272 sp = NULL; 1273 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1274 } 1275 1276 int 1277 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1278 { 1279 struct timeval32 s32[2]; 1280 struct timeval s[2], *sp; 1281 int error; 1282 1283 if (uap->tptr != NULL) { 1284 error = copyin(uap->tptr, s32, sizeof(s32)); 1285 if (error) 1286 return (error); 1287 CP(s32[0], s[0], tv_sec); 1288 CP(s32[0], s[0], tv_usec); 1289 CP(s32[1], s[1], tv_sec); 1290 CP(s32[1], s[1], tv_usec); 1291 sp = s; 1292 } else 1293 sp = NULL; 1294 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1295 } 1296 1297 int 1298 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1299 { 1300 struct timeval32 s32[2]; 1301 struct timeval s[2], *sp; 1302 int error; 1303 1304 if (uap->times != NULL) { 1305 error = copyin(uap->times, s32, sizeof(s32)); 1306 if (error) 1307 return (error); 1308 CP(s32[0], s[0], tv_sec); 1309 CP(s32[0], s[0], tv_usec); 1310 CP(s32[1], s[1], tv_sec); 1311 CP(s32[1], s[1], tv_usec); 1312 sp = s; 1313 } else 1314 sp = NULL; 1315 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1316 sp, UIO_SYSSPACE)); 1317 } 1318 1319 int 1320 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1321 { 1322 struct timeval32 tv32; 1323 struct timeval delta, olddelta, *deltap; 1324 int error; 1325 1326 if (uap->delta) { 1327 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1328 if (error) 1329 return (error); 1330 CP(tv32, delta, tv_sec); 1331 CP(tv32, delta, tv_usec); 1332 deltap = δ 1333 } else 1334 deltap = NULL; 1335 error = kern_adjtime(td, deltap, &olddelta); 1336 if (uap->olddelta && error == 0) { 1337 CP(olddelta, tv32, tv_sec); 1338 CP(olddelta, tv32, tv_usec); 1339 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1340 } 1341 return (error); 1342 } 1343 1344 #ifdef COMPAT_FREEBSD4 1345 int 1346 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1347 { 1348 struct statfs32 s32; 1349 struct statfs s; 1350 int error; 1351 1352 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1353 if (error) 1354 return (error); 1355 copy_statfs(&s, &s32); 1356 return (copyout(&s32, uap->buf, sizeof(s32))); 1357 } 1358 #endif 1359 1360 #ifdef COMPAT_FREEBSD4 1361 int 1362 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1363 { 1364 struct statfs32 s32; 1365 struct statfs s; 1366 int error; 1367 1368 error = kern_fstatfs(td, uap->fd, &s); 1369 if (error) 1370 return (error); 1371 copy_statfs(&s, &s32); 1372 return (copyout(&s32, uap->buf, sizeof(s32))); 1373 } 1374 #endif 1375 1376 #ifdef COMPAT_FREEBSD4 1377 int 1378 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1379 { 1380 struct statfs32 s32; 1381 struct statfs s; 1382 fhandle_t fh; 1383 int error; 1384 1385 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1386 return (error); 1387 error = kern_fhstatfs(td, fh, &s); 1388 if (error) 1389 return (error); 1390 copy_statfs(&s, &s32); 1391 return (copyout(&s32, uap->buf, sizeof(s32))); 1392 } 1393 #endif 1394 1395 int 1396 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1397 { 1398 struct pread_args ap; 1399 1400 ap.fd = uap->fd; 1401 ap.buf = uap->buf; 1402 ap.nbyte = uap->nbyte; 1403 ap.offset = PAIR32TO64(off_t,uap->offset); 1404 return (pread(td, &ap)); 1405 } 1406 1407 int 1408 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1409 { 1410 struct pwrite_args ap; 1411 1412 ap.fd = uap->fd; 1413 ap.buf = uap->buf; 1414 ap.nbyte = uap->nbyte; 1415 ap.offset = PAIR32TO64(off_t,uap->offset); 1416 return (pwrite(td, &ap)); 1417 } 1418 1419 int 1420 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1421 { 1422 int error; 1423 struct lseek_args ap; 1424 off_t pos; 1425 1426 ap.fd = uap->fd; 1427 ap.offset = PAIR32TO64(off_t,uap->offset); 1428 ap.whence = uap->whence; 1429 error = lseek(td, &ap); 1430 /* Expand the quad return into two parts for eax and edx */ 1431 pos = *(off_t *)(td->td_retval); 1432 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1433 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1434 return error; 1435 } 1436 1437 int 1438 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1439 { 1440 struct truncate_args ap; 1441 1442 ap.path = uap->path; 1443 ap.length = PAIR32TO64(off_t,uap->length); 1444 return (truncate(td, &ap)); 1445 } 1446 1447 int 1448 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1449 { 1450 struct ftruncate_args ap; 1451 1452 ap.fd = uap->fd; 1453 ap.length = PAIR32TO64(off_t,uap->length); 1454 return (ftruncate(td, &ap)); 1455 } 1456 1457 int 1458 freebsd32_getdirentries(struct thread *td, 1459 struct freebsd32_getdirentries_args *uap) 1460 { 1461 long base; 1462 int32_t base32; 1463 int error; 1464 1465 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base); 1466 if (error) 1467 return (error); 1468 if (uap->basep != NULL) { 1469 base32 = base; 1470 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1471 } 1472 return (error); 1473 } 1474 1475 #ifdef COMPAT_FREEBSD6 1476 /* versions with the 'int pad' argument */ 1477 int 1478 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1479 { 1480 struct pread_args ap; 1481 1482 ap.fd = uap->fd; 1483 ap.buf = uap->buf; 1484 ap.nbyte = uap->nbyte; 1485 ap.offset = PAIR32TO64(off_t,uap->offset); 1486 return (pread(td, &ap)); 1487 } 1488 1489 int 1490 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1491 { 1492 struct pwrite_args ap; 1493 1494 ap.fd = uap->fd; 1495 ap.buf = uap->buf; 1496 ap.nbyte = uap->nbyte; 1497 ap.offset = PAIR32TO64(off_t,uap->offset); 1498 return (pwrite(td, &ap)); 1499 } 1500 1501 int 1502 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1503 { 1504 int error; 1505 struct lseek_args ap; 1506 off_t pos; 1507 1508 ap.fd = uap->fd; 1509 ap.offset = PAIR32TO64(off_t,uap->offset); 1510 ap.whence = uap->whence; 1511 error = lseek(td, &ap); 1512 /* Expand the quad return into two parts for eax and edx */ 1513 pos = *(off_t *)(td->td_retval); 1514 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1515 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1516 return error; 1517 } 1518 1519 int 1520 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1521 { 1522 struct truncate_args ap; 1523 1524 ap.path = uap->path; 1525 ap.length = PAIR32TO64(off_t,uap->length); 1526 return (truncate(td, &ap)); 1527 } 1528 1529 int 1530 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1531 { 1532 struct ftruncate_args ap; 1533 1534 ap.fd = uap->fd; 1535 ap.length = PAIR32TO64(off_t,uap->length); 1536 return (ftruncate(td, &ap)); 1537 } 1538 #endif /* COMPAT_FREEBSD6 */ 1539 1540 struct sf_hdtr32 { 1541 uint32_t headers; 1542 int hdr_cnt; 1543 uint32_t trailers; 1544 int trl_cnt; 1545 }; 1546 1547 static int 1548 freebsd32_do_sendfile(struct thread *td, 1549 struct freebsd32_sendfile_args *uap, int compat) 1550 { 1551 struct sendfile_args ap; 1552 struct sf_hdtr32 hdtr32; 1553 struct sf_hdtr hdtr; 1554 struct uio *hdr_uio, *trl_uio; 1555 struct iovec32 *iov32; 1556 int error; 1557 1558 hdr_uio = trl_uio = NULL; 1559 1560 ap.fd = uap->fd; 1561 ap.s = uap->s; 1562 ap.offset = PAIR32TO64(off_t,uap->offset); 1563 ap.nbytes = uap->nbytes; 1564 ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */ 1565 ap.sbytes = uap->sbytes; 1566 ap.flags = uap->flags; 1567 1568 if (uap->hdtr != NULL) { 1569 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1570 if (error) 1571 goto out; 1572 PTRIN_CP(hdtr32, hdtr, headers); 1573 CP(hdtr32, hdtr, hdr_cnt); 1574 PTRIN_CP(hdtr32, hdtr, trailers); 1575 CP(hdtr32, hdtr, trl_cnt); 1576 1577 if (hdtr.headers != NULL) { 1578 iov32 = PTRIN(hdtr32.headers); 1579 error = freebsd32_copyinuio(iov32, 1580 hdtr32.hdr_cnt, &hdr_uio); 1581 if (error) 1582 goto out; 1583 } 1584 if (hdtr.trailers != NULL) { 1585 iov32 = PTRIN(hdtr32.trailers); 1586 error = freebsd32_copyinuio(iov32, 1587 hdtr32.trl_cnt, &trl_uio); 1588 if (error) 1589 goto out; 1590 } 1591 } 1592 1593 error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat); 1594 out: 1595 if (hdr_uio) 1596 free(hdr_uio, M_IOV); 1597 if (trl_uio) 1598 free(trl_uio, M_IOV); 1599 return (error); 1600 } 1601 1602 #ifdef COMPAT_FREEBSD4 1603 int 1604 freebsd4_freebsd32_sendfile(struct thread *td, 1605 struct freebsd4_freebsd32_sendfile_args *uap) 1606 { 1607 return (freebsd32_do_sendfile(td, 1608 (struct freebsd32_sendfile_args *)uap, 1)); 1609 } 1610 #endif 1611 1612 int 1613 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1614 { 1615 1616 return (freebsd32_do_sendfile(td, uap, 0)); 1617 } 1618 1619 static void 1620 copy_stat( struct stat *in, struct stat32 *out) 1621 { 1622 CP(*in, *out, st_dev); 1623 CP(*in, *out, st_ino); 1624 CP(*in, *out, st_mode); 1625 CP(*in, *out, st_nlink); 1626 CP(*in, *out, st_uid); 1627 CP(*in, *out, st_gid); 1628 CP(*in, *out, st_rdev); 1629 TS_CP(*in, *out, st_atim); 1630 TS_CP(*in, *out, st_mtim); 1631 TS_CP(*in, *out, st_ctim); 1632 CP(*in, *out, st_size); 1633 CP(*in, *out, st_blocks); 1634 CP(*in, *out, st_blksize); 1635 CP(*in, *out, st_flags); 1636 CP(*in, *out, st_gen); 1637 } 1638 1639 int 1640 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1641 { 1642 struct stat sb; 1643 struct stat32 sb32; 1644 int error; 1645 1646 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1647 if (error) 1648 return (error); 1649 copy_stat(&sb, &sb32); 1650 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1651 return (error); 1652 } 1653 1654 int 1655 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1656 { 1657 struct stat ub; 1658 struct stat32 ub32; 1659 int error; 1660 1661 error = kern_fstat(td, uap->fd, &ub); 1662 if (error) 1663 return (error); 1664 copy_stat(&ub, &ub32); 1665 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1666 return (error); 1667 } 1668 1669 int 1670 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1671 { 1672 struct stat ub; 1673 struct stat32 ub32; 1674 int error; 1675 1676 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1677 if (error) 1678 return (error); 1679 copy_stat(&ub, &ub32); 1680 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1681 return (error); 1682 } 1683 1684 int 1685 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1686 { 1687 struct stat sb; 1688 struct stat32 sb32; 1689 int error; 1690 1691 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1692 if (error) 1693 return (error); 1694 copy_stat(&sb, &sb32); 1695 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1696 return (error); 1697 } 1698 1699 /* 1700 * MPSAFE 1701 */ 1702 int 1703 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1704 { 1705 int error, name[CTL_MAXNAME]; 1706 size_t j, oldlen; 1707 1708 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1709 return (EINVAL); 1710 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1711 if (error) 1712 return (error); 1713 if (uap->oldlenp) 1714 oldlen = fuword32(uap->oldlenp); 1715 else 1716 oldlen = 0; 1717 error = userland_sysctl(td, name, uap->namelen, 1718 uap->old, &oldlen, 1, 1719 uap->new, uap->newlen, &j, SCTL_MASK32); 1720 if (error && error != ENOMEM) 1721 return (error); 1722 if (uap->oldlenp) 1723 suword32(uap->oldlenp, j); 1724 return (0); 1725 } 1726 1727 int 1728 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1729 { 1730 uint32_t version; 1731 int error; 1732 struct jail j; 1733 1734 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1735 if (error) 1736 return (error); 1737 1738 switch (version) { 1739 case 0: 1740 { 1741 /* FreeBSD single IPv4 jails. */ 1742 struct jail32_v0 j32_v0; 1743 1744 bzero(&j, sizeof(struct jail)); 1745 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1746 if (error) 1747 return (error); 1748 CP(j32_v0, j, version); 1749 PTRIN_CP(j32_v0, j, path); 1750 PTRIN_CP(j32_v0, j, hostname); 1751 j.ip4s = j32_v0.ip_number; 1752 break; 1753 } 1754 1755 case 1: 1756 /* 1757 * Version 1 was used by multi-IPv4 jail implementations 1758 * that never made it into the official kernel. 1759 */ 1760 return (EINVAL); 1761 1762 case 2: /* JAIL_API_VERSION */ 1763 { 1764 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1765 struct jail32 j32; 1766 1767 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1768 if (error) 1769 return (error); 1770 CP(j32, j, version); 1771 PTRIN_CP(j32, j, path); 1772 PTRIN_CP(j32, j, hostname); 1773 PTRIN_CP(j32, j, jailname); 1774 CP(j32, j, ip4s); 1775 CP(j32, j, ip6s); 1776 PTRIN_CP(j32, j, ip4); 1777 PTRIN_CP(j32, j, ip6); 1778 break; 1779 } 1780 1781 default: 1782 /* Sci-Fi jails are not supported, sorry. */ 1783 return (EINVAL); 1784 } 1785 return (kern_jail(td, &j)); 1786 } 1787 1788 int 1789 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1790 { 1791 struct uio *auio; 1792 int error; 1793 1794 /* Check that we have an even number of iovecs. */ 1795 if (uap->iovcnt & 1) 1796 return (EINVAL); 1797 1798 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1799 if (error) 1800 return (error); 1801 error = kern_jail_set(td, auio, uap->flags); 1802 free(auio, M_IOV); 1803 return (error); 1804 } 1805 1806 int 1807 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1808 { 1809 struct iovec32 iov32; 1810 struct uio *auio; 1811 int error, i; 1812 1813 /* Check that we have an even number of iovecs. */ 1814 if (uap->iovcnt & 1) 1815 return (EINVAL); 1816 1817 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1818 if (error) 1819 return (error); 1820 error = kern_jail_get(td, auio, uap->flags); 1821 if (error == 0) 1822 for (i = 0; i < uap->iovcnt; i++) { 1823 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1824 CP(auio->uio_iov[i], iov32, iov_len); 1825 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1826 if (error != 0) 1827 break; 1828 } 1829 free(auio, M_IOV); 1830 return (error); 1831 } 1832 1833 int 1834 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1835 { 1836 struct sigaction32 s32; 1837 struct sigaction sa, osa, *sap; 1838 int error; 1839 1840 if (uap->act) { 1841 error = copyin(uap->act, &s32, sizeof(s32)); 1842 if (error) 1843 return (error); 1844 sa.sa_handler = PTRIN(s32.sa_u); 1845 CP(s32, sa, sa_flags); 1846 CP(s32, sa, sa_mask); 1847 sap = &sa; 1848 } else 1849 sap = NULL; 1850 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 1851 if (error == 0 && uap->oact != NULL) { 1852 s32.sa_u = PTROUT(osa.sa_handler); 1853 CP(osa, s32, sa_flags); 1854 CP(osa, s32, sa_mask); 1855 error = copyout(&s32, uap->oact, sizeof(s32)); 1856 } 1857 return (error); 1858 } 1859 1860 #ifdef COMPAT_FREEBSD4 1861 int 1862 freebsd4_freebsd32_sigaction(struct thread *td, 1863 struct freebsd4_freebsd32_sigaction_args *uap) 1864 { 1865 struct sigaction32 s32; 1866 struct sigaction sa, osa, *sap; 1867 int error; 1868 1869 if (uap->act) { 1870 error = copyin(uap->act, &s32, sizeof(s32)); 1871 if (error) 1872 return (error); 1873 sa.sa_handler = PTRIN(s32.sa_u); 1874 CP(s32, sa, sa_flags); 1875 CP(s32, sa, sa_mask); 1876 sap = &sa; 1877 } else 1878 sap = NULL; 1879 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 1880 if (error == 0 && uap->oact != NULL) { 1881 s32.sa_u = PTROUT(osa.sa_handler); 1882 CP(osa, s32, sa_flags); 1883 CP(osa, s32, sa_mask); 1884 error = copyout(&s32, uap->oact, sizeof(s32)); 1885 } 1886 return (error); 1887 } 1888 #endif 1889 1890 #ifdef COMPAT_43 1891 struct osigaction32 { 1892 u_int32_t sa_u; 1893 osigset_t sa_mask; 1894 int sa_flags; 1895 }; 1896 1897 #define ONSIG 32 1898 1899 int 1900 ofreebsd32_sigaction(struct thread *td, 1901 struct ofreebsd32_sigaction_args *uap) 1902 { 1903 struct osigaction32 s32; 1904 struct sigaction sa, osa, *sap; 1905 int error; 1906 1907 if (uap->signum <= 0 || uap->signum >= ONSIG) 1908 return (EINVAL); 1909 1910 if (uap->nsa) { 1911 error = copyin(uap->nsa, &s32, sizeof(s32)); 1912 if (error) 1913 return (error); 1914 sa.sa_handler = PTRIN(s32.sa_u); 1915 CP(s32, sa, sa_flags); 1916 OSIG2SIG(s32.sa_mask, sa.sa_mask); 1917 sap = &sa; 1918 } else 1919 sap = NULL; 1920 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 1921 if (error == 0 && uap->osa != NULL) { 1922 s32.sa_u = PTROUT(osa.sa_handler); 1923 CP(osa, s32, sa_flags); 1924 SIG2OSIG(osa.sa_mask, s32.sa_mask); 1925 error = copyout(&s32, uap->osa, sizeof(s32)); 1926 } 1927 return (error); 1928 } 1929 1930 int 1931 ofreebsd32_sigprocmask(struct thread *td, 1932 struct ofreebsd32_sigprocmask_args *uap) 1933 { 1934 sigset_t set, oset; 1935 int error; 1936 1937 OSIG2SIG(uap->mask, set); 1938 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 1939 SIG2OSIG(oset, td->td_retval[0]); 1940 return (error); 1941 } 1942 1943 int 1944 ofreebsd32_sigpending(struct thread *td, 1945 struct ofreebsd32_sigpending_args *uap) 1946 { 1947 struct proc *p = td->td_proc; 1948 sigset_t siglist; 1949 1950 PROC_LOCK(p); 1951 siglist = p->p_siglist; 1952 SIGSETOR(siglist, td->td_siglist); 1953 PROC_UNLOCK(p); 1954 SIG2OSIG(siglist, td->td_retval[0]); 1955 return (0); 1956 } 1957 1958 struct sigvec32 { 1959 u_int32_t sv_handler; 1960 int sv_mask; 1961 int sv_flags; 1962 }; 1963 1964 int 1965 ofreebsd32_sigvec(struct thread *td, 1966 struct ofreebsd32_sigvec_args *uap) 1967 { 1968 struct sigvec32 vec; 1969 struct sigaction sa, osa, *sap; 1970 int error; 1971 1972 if (uap->signum <= 0 || uap->signum >= ONSIG) 1973 return (EINVAL); 1974 1975 if (uap->nsv) { 1976 error = copyin(uap->nsv, &vec, sizeof(vec)); 1977 if (error) 1978 return (error); 1979 sa.sa_handler = PTRIN(vec.sv_handler); 1980 OSIG2SIG(vec.sv_mask, sa.sa_mask); 1981 sa.sa_flags = vec.sv_flags; 1982 sa.sa_flags ^= SA_RESTART; 1983 sap = &sa; 1984 } else 1985 sap = NULL; 1986 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 1987 if (error == 0 && uap->osv != NULL) { 1988 vec.sv_handler = PTROUT(osa.sa_handler); 1989 SIG2OSIG(osa.sa_mask, vec.sv_mask); 1990 vec.sv_flags = osa.sa_flags; 1991 vec.sv_flags &= ~SA_NOCLDWAIT; 1992 vec.sv_flags ^= SA_RESTART; 1993 error = copyout(&vec, uap->osv, sizeof(vec)); 1994 } 1995 return (error); 1996 } 1997 1998 int 1999 ofreebsd32_sigblock(struct thread *td, 2000 struct ofreebsd32_sigblock_args *uap) 2001 { 2002 sigset_t set, oset; 2003 2004 OSIG2SIG(uap->mask, set); 2005 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2006 SIG2OSIG(oset, td->td_retval[0]); 2007 return (0); 2008 } 2009 2010 int 2011 ofreebsd32_sigsetmask(struct thread *td, 2012 struct ofreebsd32_sigsetmask_args *uap) 2013 { 2014 sigset_t set, oset; 2015 2016 OSIG2SIG(uap->mask, set); 2017 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2018 SIG2OSIG(oset, td->td_retval[0]); 2019 return (0); 2020 } 2021 2022 int 2023 ofreebsd32_sigsuspend(struct thread *td, 2024 struct ofreebsd32_sigsuspend_args *uap) 2025 { 2026 sigset_t mask; 2027 2028 OSIG2SIG(uap->mask, mask); 2029 return (kern_sigsuspend(td, mask)); 2030 } 2031 2032 struct sigstack32 { 2033 u_int32_t ss_sp; 2034 int ss_onstack; 2035 }; 2036 2037 int 2038 ofreebsd32_sigstack(struct thread *td, 2039 struct ofreebsd32_sigstack_args *uap) 2040 { 2041 struct sigstack32 s32; 2042 struct sigstack nss, oss; 2043 int error = 0, unss; 2044 2045 if (uap->nss != NULL) { 2046 error = copyin(uap->nss, &s32, sizeof(s32)); 2047 if (error) 2048 return (error); 2049 nss.ss_sp = PTRIN(s32.ss_sp); 2050 CP(s32, nss, ss_onstack); 2051 unss = 1; 2052 } else { 2053 unss = 0; 2054 } 2055 oss.ss_sp = td->td_sigstk.ss_sp; 2056 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2057 if (unss) { 2058 td->td_sigstk.ss_sp = nss.ss_sp; 2059 td->td_sigstk.ss_size = 0; 2060 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2061 td->td_pflags |= TDP_ALTSTACK; 2062 } 2063 if (uap->oss != NULL) { 2064 s32.ss_sp = PTROUT(oss.ss_sp); 2065 CP(oss, s32, ss_onstack); 2066 error = copyout(&s32, uap->oss, sizeof(s32)); 2067 } 2068 return (error); 2069 } 2070 #endif 2071 2072 int 2073 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2074 { 2075 struct timespec32 rmt32, rqt32; 2076 struct timespec rmt, rqt; 2077 int error; 2078 2079 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2080 if (error) 2081 return (error); 2082 2083 CP(rqt32, rqt, tv_sec); 2084 CP(rqt32, rqt, tv_nsec); 2085 2086 if (uap->rmtp && 2087 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2088 return (EFAULT); 2089 error = kern_nanosleep(td, &rqt, &rmt); 2090 if (error && uap->rmtp) { 2091 int error2; 2092 2093 CP(rmt, rmt32, tv_sec); 2094 CP(rmt, rmt32, tv_nsec); 2095 2096 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2097 if (error2) 2098 error = error2; 2099 } 2100 return (error); 2101 } 2102 2103 int 2104 freebsd32_clock_gettime(struct thread *td, 2105 struct freebsd32_clock_gettime_args *uap) 2106 { 2107 struct timespec ats; 2108 struct timespec32 ats32; 2109 int error; 2110 2111 error = kern_clock_gettime(td, uap->clock_id, &ats); 2112 if (error == 0) { 2113 CP(ats, ats32, tv_sec); 2114 CP(ats, ats32, tv_nsec); 2115 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2116 } 2117 return (error); 2118 } 2119 2120 int 2121 freebsd32_clock_settime(struct thread *td, 2122 struct freebsd32_clock_settime_args *uap) 2123 { 2124 struct timespec ats; 2125 struct timespec32 ats32; 2126 int error; 2127 2128 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2129 if (error) 2130 return (error); 2131 CP(ats32, ats, tv_sec); 2132 CP(ats32, ats, tv_nsec); 2133 2134 return (kern_clock_settime(td, uap->clock_id, &ats)); 2135 } 2136 2137 int 2138 freebsd32_clock_getres(struct thread *td, 2139 struct freebsd32_clock_getres_args *uap) 2140 { 2141 struct timespec ts; 2142 struct timespec32 ts32; 2143 int error; 2144 2145 if (uap->tp == NULL) 2146 return (0); 2147 error = kern_clock_getres(td, uap->clock_id, &ts); 2148 if (error == 0) { 2149 CP(ts, ts32, tv_sec); 2150 CP(ts, ts32, tv_nsec); 2151 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2152 } 2153 return (error); 2154 } 2155 2156 int 2157 freebsd32_thr_new(struct thread *td, 2158 struct freebsd32_thr_new_args *uap) 2159 { 2160 struct thr_param32 param32; 2161 struct thr_param param; 2162 int error; 2163 2164 if (uap->param_size < 0 || 2165 uap->param_size > sizeof(struct thr_param32)) 2166 return (EINVAL); 2167 bzero(¶m, sizeof(struct thr_param)); 2168 bzero(¶m32, sizeof(struct thr_param32)); 2169 error = copyin(uap->param, ¶m32, uap->param_size); 2170 if (error != 0) 2171 return (error); 2172 param.start_func = PTRIN(param32.start_func); 2173 param.arg = PTRIN(param32.arg); 2174 param.stack_base = PTRIN(param32.stack_base); 2175 param.stack_size = param32.stack_size; 2176 param.tls_base = PTRIN(param32.tls_base); 2177 param.tls_size = param32.tls_size; 2178 param.child_tid = PTRIN(param32.child_tid); 2179 param.parent_tid = PTRIN(param32.parent_tid); 2180 param.flags = param32.flags; 2181 param.rtp = PTRIN(param32.rtp); 2182 param.spare[0] = PTRIN(param32.spare[0]); 2183 param.spare[1] = PTRIN(param32.spare[1]); 2184 param.spare[2] = PTRIN(param32.spare[2]); 2185 2186 return (kern_thr_new(td, ¶m)); 2187 } 2188 2189 int 2190 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2191 { 2192 struct timespec32 ts32; 2193 struct timespec ts, *tsp; 2194 int error; 2195 2196 error = 0; 2197 tsp = NULL; 2198 if (uap->timeout != NULL) { 2199 error = copyin((const void *)uap->timeout, (void *)&ts32, 2200 sizeof(struct timespec32)); 2201 if (error != 0) 2202 return (error); 2203 ts.tv_sec = ts32.tv_sec; 2204 ts.tv_nsec = ts32.tv_nsec; 2205 tsp = &ts; 2206 } 2207 return (kern_thr_suspend(td, tsp)); 2208 } 2209 2210 void 2211 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2212 { 2213 bzero(dst, sizeof(*dst)); 2214 dst->si_signo = src->si_signo; 2215 dst->si_errno = src->si_errno; 2216 dst->si_code = src->si_code; 2217 dst->si_pid = src->si_pid; 2218 dst->si_uid = src->si_uid; 2219 dst->si_status = src->si_status; 2220 dst->si_addr = (uintptr_t)src->si_addr; 2221 dst->si_value.sigval_int = src->si_value.sival_int; 2222 dst->si_timerid = src->si_timerid; 2223 dst->si_overrun = src->si_overrun; 2224 } 2225 2226 int 2227 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2228 { 2229 struct timespec32 ts32; 2230 struct timespec ts; 2231 struct timespec *timeout; 2232 sigset_t set; 2233 ksiginfo_t ksi; 2234 struct siginfo32 si32; 2235 int error; 2236 2237 if (uap->timeout) { 2238 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2239 if (error) 2240 return (error); 2241 ts.tv_sec = ts32.tv_sec; 2242 ts.tv_nsec = ts32.tv_nsec; 2243 timeout = &ts; 2244 } else 2245 timeout = NULL; 2246 2247 error = copyin(uap->set, &set, sizeof(set)); 2248 if (error) 2249 return (error); 2250 2251 error = kern_sigtimedwait(td, set, &ksi, timeout); 2252 if (error) 2253 return (error); 2254 2255 if (uap->info) { 2256 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2257 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2258 } 2259 2260 if (error == 0) 2261 td->td_retval[0] = ksi.ksi_signo; 2262 return (error); 2263 } 2264 2265 /* 2266 * MPSAFE 2267 */ 2268 int 2269 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2270 { 2271 ksiginfo_t ksi; 2272 struct siginfo32 si32; 2273 sigset_t set; 2274 int error; 2275 2276 error = copyin(uap->set, &set, sizeof(set)); 2277 if (error) 2278 return (error); 2279 2280 error = kern_sigtimedwait(td, set, &ksi, NULL); 2281 if (error) 2282 return (error); 2283 2284 if (uap->info) { 2285 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2286 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2287 } 2288 if (error == 0) 2289 td->td_retval[0] = ksi.ksi_signo; 2290 return (error); 2291 } 2292 2293 int 2294 freebsd32_cpuset_setid(struct thread *td, 2295 struct freebsd32_cpuset_setid_args *uap) 2296 { 2297 struct cpuset_setid_args ap; 2298 2299 ap.which = uap->which; 2300 ap.id = PAIR32TO64(id_t,uap->id); 2301 ap.setid = uap->setid; 2302 2303 return (cpuset_setid(td, &ap)); 2304 } 2305 2306 int 2307 freebsd32_cpuset_getid(struct thread *td, 2308 struct freebsd32_cpuset_getid_args *uap) 2309 { 2310 struct cpuset_getid_args ap; 2311 2312 ap.level = uap->level; 2313 ap.which = uap->which; 2314 ap.id = PAIR32TO64(id_t,uap->id); 2315 ap.setid = uap->setid; 2316 2317 return (cpuset_getid(td, &ap)); 2318 } 2319 2320 int 2321 freebsd32_cpuset_getaffinity(struct thread *td, 2322 struct freebsd32_cpuset_getaffinity_args *uap) 2323 { 2324 struct cpuset_getaffinity_args ap; 2325 2326 ap.level = uap->level; 2327 ap.which = uap->which; 2328 ap.id = PAIR32TO64(id_t,uap->id); 2329 ap.cpusetsize = uap->cpusetsize; 2330 ap.mask = uap->mask; 2331 2332 return (cpuset_getaffinity(td, &ap)); 2333 } 2334 2335 int 2336 freebsd32_cpuset_setaffinity(struct thread *td, 2337 struct freebsd32_cpuset_setaffinity_args *uap) 2338 { 2339 struct cpuset_setaffinity_args ap; 2340 2341 ap.level = uap->level; 2342 ap.which = uap->which; 2343 ap.id = PAIR32TO64(id_t,uap->id); 2344 ap.cpusetsize = uap->cpusetsize; 2345 ap.mask = uap->mask; 2346 2347 return (cpuset_setaffinity(td, &ap)); 2348 } 2349 2350 int 2351 freebsd32_nmount(struct thread *td, 2352 struct freebsd32_nmount_args /* { 2353 struct iovec *iovp; 2354 unsigned int iovcnt; 2355 int flags; 2356 } */ *uap) 2357 { 2358 struct uio *auio; 2359 int error; 2360 2361 AUDIT_ARG_FFLAGS(uap->flags); 2362 2363 /* 2364 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2365 * userspace to set this flag, but we must filter it out if we want 2366 * MNT_UPDATE on the root file system to work. 2367 * MNT_ROOTFS should only be set in the kernel in vfs_mountroot_try(). 2368 */ 2369 uap->flags &= ~MNT_ROOTFS; 2370 2371 /* 2372 * check that we have an even number of iovec's 2373 * and that we have at least two options. 2374 */ 2375 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2376 return (EINVAL); 2377 2378 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2379 if (error) 2380 return (error); 2381 error = vfs_donmount(td, uap->flags, auio); 2382 2383 free(auio, M_IOV); 2384 return error; 2385 } 2386 2387 #if 0 2388 int 2389 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2390 { 2391 struct yyy32 *p32, s32; 2392 struct yyy *p = NULL, s; 2393 struct xxx_arg ap; 2394 int error; 2395 2396 if (uap->zzz) { 2397 error = copyin(uap->zzz, &s32, sizeof(s32)); 2398 if (error) 2399 return (error); 2400 /* translate in */ 2401 p = &s; 2402 } 2403 error = kern_xxx(td, p); 2404 if (error) 2405 return (error); 2406 if (uap->zzz) { 2407 /* translate out */ 2408 error = copyout(&s32, p32, sizeof(s32)); 2409 } 2410 return (error); 2411 } 2412 #endif 2413 2414 int 2415 syscall32_register(int *offset, struct sysent *new_sysent, 2416 struct sysent *old_sysent) 2417 { 2418 if (*offset == NO_SYSCALL) { 2419 int i; 2420 2421 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2422 if (freebsd32_sysent[i].sy_call == 2423 (sy_call_t *)lkmnosys) 2424 break; 2425 if (i == SYS_MAXSYSCALL) 2426 return (ENFILE); 2427 *offset = i; 2428 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2429 return (EINVAL); 2430 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2431 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2432 return (EEXIST); 2433 2434 *old_sysent = freebsd32_sysent[*offset]; 2435 freebsd32_sysent[*offset] = *new_sysent; 2436 return 0; 2437 } 2438 2439 int 2440 syscall32_deregister(int *offset, struct sysent *old_sysent) 2441 { 2442 2443 if (*offset) 2444 freebsd32_sysent[*offset] = *old_sysent; 2445 return 0; 2446 } 2447 2448 int 2449 syscall32_module_handler(struct module *mod, int what, void *arg) 2450 { 2451 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2452 modspecific_t ms; 2453 int error; 2454 2455 switch (what) { 2456 case MOD_LOAD: 2457 error = syscall32_register(data->offset, data->new_sysent, 2458 &data->old_sysent); 2459 if (error) { 2460 /* Leave a mark so we know to safely unload below. */ 2461 data->offset = NULL; 2462 return error; 2463 } 2464 ms.intval = *data->offset; 2465 MOD_XLOCK; 2466 module_setspecific(mod, &ms); 2467 MOD_XUNLOCK; 2468 if (data->chainevh) 2469 error = data->chainevh(mod, what, data->chainarg); 2470 return (error); 2471 case MOD_UNLOAD: 2472 /* 2473 * MOD_LOAD failed, so just return without calling the 2474 * chained handler since we didn't pass along the MOD_LOAD 2475 * event. 2476 */ 2477 if (data->offset == NULL) 2478 return (0); 2479 if (data->chainevh) { 2480 error = data->chainevh(mod, what, data->chainarg); 2481 if (error) 2482 return (error); 2483 } 2484 error = syscall32_deregister(data->offset, &data->old_sysent); 2485 return (error); 2486 default: 2487 error = EOPNOTSUPP; 2488 if (data->chainevh) 2489 error = data->chainevh(mod, what, data->chainarg); 2490 return (error); 2491 } 2492 } 2493 2494 int 2495 syscall32_helper_register(struct syscall_helper_data *sd) 2496 { 2497 struct syscall_helper_data *sd1; 2498 int error; 2499 2500 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2501 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2502 &sd1->old_sysent); 2503 if (error != 0) { 2504 syscall32_helper_unregister(sd); 2505 return (error); 2506 } 2507 sd1->registered = 1; 2508 } 2509 return (0); 2510 } 2511 2512 int 2513 syscall32_helper_unregister(struct syscall_helper_data *sd) 2514 { 2515 struct syscall_helper_data *sd1; 2516 2517 for (sd1 = sd; sd1->registered != 0; sd1++) { 2518 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2519 sd1->registered = 0; 2520 } 2521 return (0); 2522 } 2523 2524 register_t * 2525 freebsd32_copyout_strings(struct image_params *imgp) 2526 { 2527 int argc, envc; 2528 u_int32_t *vectp; 2529 char *stringp, *destp; 2530 u_int32_t *stack_base; 2531 struct freebsd32_ps_strings *arginfo; 2532 size_t execpath_len; 2533 int szsigcode; 2534 2535 /* 2536 * Calculate string base and vector table pointers. 2537 * Also deal with signal trampoline code for this exec type. 2538 */ 2539 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2540 execpath_len = strlen(imgp->execpath) + 1; 2541 else 2542 execpath_len = 0; 2543 arginfo = (struct freebsd32_ps_strings *)FREEBSD32_PS_STRINGS; 2544 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2545 destp = (caddr_t)arginfo - szsigcode - SPARE_USRSPACE - 2546 roundup(execpath_len, sizeof(char *)) - 2547 roundup((ARG_MAX - imgp->args->stringspace), sizeof(char *)); 2548 2549 /* 2550 * install sigcode 2551 */ 2552 if (szsigcode) 2553 copyout(imgp->proc->p_sysent->sv_sigcode, 2554 ((caddr_t)arginfo - szsigcode), szsigcode); 2555 2556 /* 2557 * Copy the image path for the rtld. 2558 */ 2559 if (execpath_len != 0) { 2560 imgp->execpathp = (uintptr_t)arginfo - szsigcode - execpath_len; 2561 copyout(imgp->execpath, (void *)imgp->execpathp, 2562 execpath_len); 2563 } 2564 2565 /* 2566 * If we have a valid auxargs ptr, prepare some room 2567 * on the stack. 2568 */ 2569 if (imgp->auxargs) { 2570 /* 2571 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2572 * lower compatibility. 2573 */ 2574 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2575 : (AT_COUNT * 2); 2576 /* 2577 * The '+ 2' is for the null pointers at the end of each of 2578 * the arg and env vector sets,and imgp->auxarg_size is room 2579 * for argument of Runtime loader. 2580 */ 2581 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2582 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2583 sizeof(u_int32_t)); 2584 } else 2585 /* 2586 * The '+ 2' is for the null pointers at the end of each of 2587 * the arg and env vector sets 2588 */ 2589 vectp = (u_int32_t *) 2590 (destp - (imgp->args->argc + imgp->args->envc + 2) * sizeof(u_int32_t)); 2591 2592 /* 2593 * vectp also becomes our initial stack base 2594 */ 2595 stack_base = vectp; 2596 2597 stringp = imgp->args->begin_argv; 2598 argc = imgp->args->argc; 2599 envc = imgp->args->envc; 2600 /* 2601 * Copy out strings - arguments and environment. 2602 */ 2603 copyout(stringp, destp, ARG_MAX - imgp->args->stringspace); 2604 2605 /* 2606 * Fill in "ps_strings" struct for ps, w, etc. 2607 */ 2608 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2609 suword32(&arginfo->ps_nargvstr, argc); 2610 2611 /* 2612 * Fill in argument portion of vector table. 2613 */ 2614 for (; argc > 0; --argc) { 2615 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2616 while (*stringp++ != 0) 2617 destp++; 2618 destp++; 2619 } 2620 2621 /* a null vector table pointer separates the argp's from the envp's */ 2622 suword32(vectp++, 0); 2623 2624 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2625 suword32(&arginfo->ps_nenvstr, envc); 2626 2627 /* 2628 * Fill in environment portion of vector table. 2629 */ 2630 for (; envc > 0; --envc) { 2631 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2632 while (*stringp++ != 0) 2633 destp++; 2634 destp++; 2635 } 2636 2637 /* end of vector table is a null pointer */ 2638 suword32(vectp, 0); 2639 2640 return ((register_t *)stack_base); 2641 } 2642 2643