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/linker.h> 47 #include <sys/lock.h> 48 #include <sys/malloc.h> 49 #include <sys/file.h> /* Must come after sys/malloc.h */ 50 #include <sys/imgact.h> 51 #include <sys/mbuf.h> 52 #include <sys/mman.h> 53 #include <sys/module.h> 54 #include <sys/mount.h> 55 #include <sys/mutex.h> 56 #include <sys/namei.h> 57 #include <sys/proc.h> 58 #include <sys/reboot.h> 59 #include <sys/resource.h> 60 #include <sys/resourcevar.h> 61 #include <sys/selinfo.h> 62 #include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 63 #include <sys/pipe.h> /* Must come after sys/selinfo.h */ 64 #include <sys/signal.h> 65 #include <sys/signalvar.h> 66 #include <sys/socket.h> 67 #include <sys/socketvar.h> 68 #include <sys/stat.h> 69 #include <sys/syscall.h> 70 #include <sys/syscallsubr.h> 71 #include <sys/sysctl.h> 72 #include <sys/sysent.h> 73 #include <sys/sysproto.h> 74 #include <sys/systm.h> 75 #include <sys/thr.h> 76 #include <sys/unistd.h> 77 #include <sys/ucontext.h> 78 #include <sys/vnode.h> 79 #include <sys/wait.h> 80 #include <sys/ipc.h> 81 #include <sys/msg.h> 82 #include <sys/sem.h> 83 #include <sys/shm.h> 84 85 #ifdef INET 86 #include <netinet/in.h> 87 #endif 88 89 #include <vm/vm.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 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 demand-paged memory for the file name, argument, and 283 * environment strings. 284 */ 285 error = exec_alloc_args(args); 286 if (error != 0) 287 return (error); 288 289 /* 290 * Copy the file name. 291 */ 292 if (fname != NULL) { 293 args->fname = args->buf; 294 error = (segflg == UIO_SYSSPACE) ? 295 copystr(fname, args->fname, PATH_MAX, &length) : 296 copyinstr(fname, args->fname, PATH_MAX, &length); 297 if (error != 0) 298 goto err_exit; 299 } else 300 length = 0; 301 302 args->begin_argv = args->buf + length; 303 args->endp = args->begin_argv; 304 args->stringspace = ARG_MAX; 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 exec_free_args(args); 359 return (error); 360 } 361 362 int 363 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 364 { 365 struct image_args eargs; 366 int error; 367 368 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 369 uap->argv, uap->envv); 370 if (error == 0) 371 error = kern_execve(td, &eargs, NULL); 372 return (error); 373 } 374 375 int 376 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 377 { 378 struct image_args eargs; 379 int error; 380 381 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 382 uap->argv, uap->envv); 383 if (error == 0) { 384 eargs.fd = uap->fd; 385 error = kern_execve(td, &eargs, NULL); 386 } 387 return (error); 388 } 389 390 #ifdef __ia64__ 391 static int 392 freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 393 int prot, int fd, off_t pos) 394 { 395 vm_map_t map; 396 vm_map_entry_t entry; 397 int rv; 398 399 map = &td->td_proc->p_vmspace->vm_map; 400 if (fd != -1) 401 prot |= VM_PROT_WRITE; 402 403 if (vm_map_lookup_entry(map, start, &entry)) { 404 if ((entry->protection & prot) != prot) { 405 rv = vm_map_protect(map, 406 trunc_page(start), 407 round_page(end), 408 entry->protection | prot, 409 FALSE); 410 if (rv != KERN_SUCCESS) 411 return (EINVAL); 412 } 413 } else { 414 vm_offset_t addr = trunc_page(start); 415 rv = vm_map_find(map, 0, 0, 416 &addr, PAGE_SIZE, FALSE, prot, 417 VM_PROT_ALL, 0); 418 if (rv != KERN_SUCCESS) 419 return (EINVAL); 420 } 421 422 if (fd != -1) { 423 struct pread_args r; 424 r.fd = fd; 425 r.buf = (void *) start; 426 r.nbyte = end - start; 427 r.offset = pos; 428 return (pread(td, &r)); 429 } else { 430 while (start < end) { 431 subyte((void *) start, 0); 432 start++; 433 } 434 return (0); 435 } 436 } 437 #endif 438 439 int 440 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 441 { 442 struct mmap_args ap; 443 vm_offset_t addr = (vm_offset_t) uap->addr; 444 vm_size_t len = uap->len; 445 int prot = uap->prot; 446 int flags = uap->flags; 447 int fd = uap->fd; 448 off_t pos = PAIR32TO64(off_t,uap->pos); 449 #ifdef __ia64__ 450 vm_size_t pageoff; 451 int error; 452 453 /* 454 * Attempt to handle page size hassles. 455 */ 456 pageoff = (pos & PAGE_MASK); 457 if (flags & MAP_FIXED) { 458 vm_offset_t start, end; 459 start = addr; 460 end = addr + len; 461 462 if (start != trunc_page(start)) { 463 error = freebsd32_mmap_partial(td, start, 464 round_page(start), prot, 465 fd, pos); 466 if (fd != -1) 467 pos += round_page(start) - start; 468 start = round_page(start); 469 } 470 if (end != round_page(end)) { 471 vm_offset_t t = trunc_page(end); 472 error = freebsd32_mmap_partial(td, t, end, 473 prot, fd, 474 pos + t - start); 475 end = trunc_page(end); 476 } 477 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 478 /* 479 * We can't map this region at all. The specified 480 * address doesn't have the same alignment as the file 481 * position. Fake the mapping by simply reading the 482 * entire region into memory. First we need to make 483 * sure the region exists. 484 */ 485 vm_map_t map; 486 struct pread_args r; 487 int rv; 488 489 prot |= VM_PROT_WRITE; 490 map = &td->td_proc->p_vmspace->vm_map; 491 rv = vm_map_remove(map, start, end); 492 if (rv != KERN_SUCCESS) 493 return (EINVAL); 494 rv = vm_map_find(map, 0, 0, 495 &start, end - start, FALSE, 496 prot, VM_PROT_ALL, 0); 497 if (rv != KERN_SUCCESS) 498 return (EINVAL); 499 r.fd = fd; 500 r.buf = (void *) start; 501 r.nbyte = end - start; 502 r.offset = pos; 503 error = pread(td, &r); 504 if (error) 505 return (error); 506 507 td->td_retval[0] = addr; 508 return (0); 509 } 510 if (end == start) { 511 /* 512 * After dealing with the ragged ends, there 513 * might be none left. 514 */ 515 td->td_retval[0] = addr; 516 return (0); 517 } 518 addr = start; 519 len = end - start; 520 } 521 #endif 522 523 ap.addr = (void *) addr; 524 ap.len = len; 525 ap.prot = prot; 526 ap.flags = flags; 527 ap.fd = fd; 528 ap.pos = pos; 529 530 return (mmap(td, &ap)); 531 } 532 533 #ifdef COMPAT_FREEBSD6 534 int 535 freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 536 { 537 struct freebsd32_mmap_args ap; 538 539 ap.addr = uap->addr; 540 ap.len = uap->len; 541 ap.prot = uap->prot; 542 ap.flags = uap->flags; 543 ap.fd = uap->fd; 544 ap.pos1 = uap->pos1; 545 ap.pos2 = uap->pos2; 546 547 return (freebsd32_mmap(td, &ap)); 548 } 549 #endif 550 551 int 552 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 553 { 554 struct itimerval itv, oitv, *itvp; 555 struct itimerval32 i32; 556 int error; 557 558 if (uap->itv != NULL) { 559 error = copyin(uap->itv, &i32, sizeof(i32)); 560 if (error) 561 return (error); 562 TV_CP(i32, itv, it_interval); 563 TV_CP(i32, itv, it_value); 564 itvp = &itv; 565 } else 566 itvp = NULL; 567 error = kern_setitimer(td, uap->which, itvp, &oitv); 568 if (error || uap->oitv == NULL) 569 return (error); 570 TV_CP(oitv, i32, it_interval); 571 TV_CP(oitv, i32, it_value); 572 return (copyout(&i32, uap->oitv, sizeof(i32))); 573 } 574 575 int 576 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 577 { 578 struct itimerval itv; 579 struct itimerval32 i32; 580 int error; 581 582 error = kern_getitimer(td, uap->which, &itv); 583 if (error || uap->itv == NULL) 584 return (error); 585 TV_CP(itv, i32, it_interval); 586 TV_CP(itv, i32, it_value); 587 return (copyout(&i32, uap->itv, sizeof(i32))); 588 } 589 590 int 591 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 592 { 593 struct timeval32 tv32; 594 struct timeval tv, *tvp; 595 int error; 596 597 if (uap->tv != NULL) { 598 error = copyin(uap->tv, &tv32, sizeof(tv32)); 599 if (error) 600 return (error); 601 CP(tv32, tv, tv_sec); 602 CP(tv32, tv, tv_usec); 603 tvp = &tv; 604 } else 605 tvp = NULL; 606 /* 607 * XXX Do pointers need PTRIN()? 608 */ 609 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 610 sizeof(int32_t) * 8)); 611 } 612 613 int 614 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 615 { 616 struct timespec32 ts32; 617 struct timespec ts; 618 struct timeval tv, *tvp; 619 sigset_t set, *uset; 620 int error; 621 622 if (uap->ts != NULL) { 623 error = copyin(uap->ts, &ts32, sizeof(ts32)); 624 if (error != 0) 625 return (error); 626 CP(ts32, ts, tv_sec); 627 CP(ts32, ts, tv_nsec); 628 TIMESPEC_TO_TIMEVAL(&tv, &ts); 629 tvp = &tv; 630 } else 631 tvp = NULL; 632 if (uap->sm != NULL) { 633 error = copyin(uap->sm, &set, sizeof(set)); 634 if (error != 0) 635 return (error); 636 uset = &set; 637 } else 638 uset = NULL; 639 /* 640 * XXX Do pointers need PTRIN()? 641 */ 642 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 643 uset, sizeof(int32_t) * 8); 644 return (error); 645 } 646 647 /* 648 * Copy 'count' items into the destination list pointed to by uap->eventlist. 649 */ 650 static int 651 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 652 { 653 struct freebsd32_kevent_args *uap; 654 struct kevent32 ks32[KQ_NEVENTS]; 655 int i, error = 0; 656 657 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 658 uap = (struct freebsd32_kevent_args *)arg; 659 660 for (i = 0; i < count; i++) { 661 CP(kevp[i], ks32[i], ident); 662 CP(kevp[i], ks32[i], filter); 663 CP(kevp[i], ks32[i], flags); 664 CP(kevp[i], ks32[i], fflags); 665 CP(kevp[i], ks32[i], data); 666 PTROUT_CP(kevp[i], ks32[i], udata); 667 } 668 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 669 if (error == 0) 670 uap->eventlist += count; 671 return (error); 672 } 673 674 /* 675 * Copy 'count' items from the list pointed to by uap->changelist. 676 */ 677 static int 678 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 679 { 680 struct freebsd32_kevent_args *uap; 681 struct kevent32 ks32[KQ_NEVENTS]; 682 int i, error = 0; 683 684 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 685 uap = (struct freebsd32_kevent_args *)arg; 686 687 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 688 if (error) 689 goto done; 690 uap->changelist += count; 691 692 for (i = 0; i < count; i++) { 693 CP(ks32[i], kevp[i], ident); 694 CP(ks32[i], kevp[i], filter); 695 CP(ks32[i], kevp[i], flags); 696 CP(ks32[i], kevp[i], fflags); 697 CP(ks32[i], kevp[i], data); 698 PTRIN_CP(ks32[i], kevp[i], udata); 699 } 700 done: 701 return (error); 702 } 703 704 int 705 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 706 { 707 struct timespec32 ts32; 708 struct timespec ts, *tsp; 709 struct kevent_copyops k_ops = { uap, 710 freebsd32_kevent_copyout, 711 freebsd32_kevent_copyin}; 712 int error; 713 714 715 if (uap->timeout) { 716 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 717 if (error) 718 return (error); 719 CP(ts32, ts, tv_sec); 720 CP(ts32, ts, tv_nsec); 721 tsp = &ts; 722 } else 723 tsp = NULL; 724 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 725 &k_ops, tsp); 726 return (error); 727 } 728 729 int 730 freebsd32_gettimeofday(struct thread *td, 731 struct freebsd32_gettimeofday_args *uap) 732 { 733 struct timeval atv; 734 struct timeval32 atv32; 735 struct timezone rtz; 736 int error = 0; 737 738 if (uap->tp) { 739 microtime(&atv); 740 CP(atv, atv32, tv_sec); 741 CP(atv, atv32, tv_usec); 742 error = copyout(&atv32, uap->tp, sizeof (atv32)); 743 } 744 if (error == 0 && uap->tzp != NULL) { 745 rtz.tz_minuteswest = tz_minuteswest; 746 rtz.tz_dsttime = tz_dsttime; 747 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 748 } 749 return (error); 750 } 751 752 int 753 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 754 { 755 struct rusage32 s32; 756 struct rusage s; 757 int error; 758 759 error = kern_getrusage(td, uap->who, &s); 760 if (error) 761 return (error); 762 if (uap->rusage != NULL) { 763 freebsd32_rusage_out(&s, &s32); 764 error = copyout(&s32, uap->rusage, sizeof(s32)); 765 } 766 return (error); 767 } 768 769 static int 770 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 771 { 772 struct iovec32 iov32; 773 struct iovec *iov; 774 struct uio *uio; 775 u_int iovlen; 776 int error, i; 777 778 *uiop = NULL; 779 if (iovcnt > UIO_MAXIOV) 780 return (EINVAL); 781 iovlen = iovcnt * sizeof(struct iovec); 782 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 783 iov = (struct iovec *)(uio + 1); 784 for (i = 0; i < iovcnt; i++) { 785 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 786 if (error) { 787 free(uio, M_IOV); 788 return (error); 789 } 790 iov[i].iov_base = PTRIN(iov32.iov_base); 791 iov[i].iov_len = iov32.iov_len; 792 } 793 uio->uio_iov = iov; 794 uio->uio_iovcnt = iovcnt; 795 uio->uio_segflg = UIO_USERSPACE; 796 uio->uio_offset = -1; 797 uio->uio_resid = 0; 798 for (i = 0; i < iovcnt; i++) { 799 if (iov->iov_len > INT_MAX - uio->uio_resid) { 800 free(uio, M_IOV); 801 return (EINVAL); 802 } 803 uio->uio_resid += iov->iov_len; 804 iov++; 805 } 806 *uiop = uio; 807 return (0); 808 } 809 810 int 811 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 812 { 813 struct uio *auio; 814 int error; 815 816 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 817 if (error) 818 return (error); 819 error = kern_readv(td, uap->fd, auio); 820 free(auio, M_IOV); 821 return (error); 822 } 823 824 int 825 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 826 { 827 struct uio *auio; 828 int error; 829 830 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 831 if (error) 832 return (error); 833 error = kern_writev(td, uap->fd, auio); 834 free(auio, M_IOV); 835 return (error); 836 } 837 838 int 839 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 840 { 841 struct uio *auio; 842 int error; 843 844 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 845 if (error) 846 return (error); 847 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 848 free(auio, M_IOV); 849 return (error); 850 } 851 852 int 853 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 854 { 855 struct uio *auio; 856 int error; 857 858 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 859 if (error) 860 return (error); 861 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 862 free(auio, M_IOV); 863 return (error); 864 } 865 866 int 867 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 868 int error) 869 { 870 struct iovec32 iov32; 871 struct iovec *iov; 872 u_int iovlen; 873 int i; 874 875 *iovp = NULL; 876 if (iovcnt > UIO_MAXIOV) 877 return (error); 878 iovlen = iovcnt * sizeof(struct iovec); 879 iov = malloc(iovlen, M_IOV, M_WAITOK); 880 for (i = 0; i < iovcnt; i++) { 881 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 882 if (error) { 883 free(iov, M_IOV); 884 return (error); 885 } 886 iov[i].iov_base = PTRIN(iov32.iov_base); 887 iov[i].iov_len = iov32.iov_len; 888 } 889 *iovp = iov; 890 return (0); 891 } 892 893 static int 894 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 895 { 896 struct msghdr32 m32; 897 int error; 898 899 error = copyin(msg32, &m32, sizeof(m32)); 900 if (error) 901 return (error); 902 msg->msg_name = PTRIN(m32.msg_name); 903 msg->msg_namelen = m32.msg_namelen; 904 msg->msg_iov = PTRIN(m32.msg_iov); 905 msg->msg_iovlen = m32.msg_iovlen; 906 msg->msg_control = PTRIN(m32.msg_control); 907 msg->msg_controllen = m32.msg_controllen; 908 msg->msg_flags = m32.msg_flags; 909 return (0); 910 } 911 912 static int 913 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 914 { 915 struct msghdr32 m32; 916 int error; 917 918 m32.msg_name = PTROUT(msg->msg_name); 919 m32.msg_namelen = msg->msg_namelen; 920 m32.msg_iov = PTROUT(msg->msg_iov); 921 m32.msg_iovlen = msg->msg_iovlen; 922 m32.msg_control = PTROUT(msg->msg_control); 923 m32.msg_controllen = msg->msg_controllen; 924 m32.msg_flags = msg->msg_flags; 925 error = copyout(&m32, msg32, sizeof(m32)); 926 return (error); 927 } 928 929 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 930 #define FREEBSD32_ALIGN(p) \ 931 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 932 #define FREEBSD32_CMSG_SPACE(l) \ 933 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 934 935 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 936 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 937 static int 938 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 939 { 940 struct cmsghdr *cm; 941 void *data; 942 socklen_t clen, datalen; 943 int error; 944 caddr_t ctlbuf; 945 int len, maxlen, copylen; 946 struct mbuf *m; 947 error = 0; 948 949 len = msg->msg_controllen; 950 maxlen = msg->msg_controllen; 951 msg->msg_controllen = 0; 952 953 m = control; 954 ctlbuf = msg->msg_control; 955 956 while (m && len > 0) { 957 cm = mtod(m, struct cmsghdr *); 958 clen = m->m_len; 959 960 while (cm != NULL) { 961 962 if (sizeof(struct cmsghdr) > clen || 963 cm->cmsg_len > clen) { 964 error = EINVAL; 965 break; 966 } 967 968 data = CMSG_DATA(cm); 969 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 970 971 /* Adjust message length */ 972 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 973 datalen; 974 975 976 /* Copy cmsghdr */ 977 copylen = sizeof(struct cmsghdr); 978 if (len < copylen) { 979 msg->msg_flags |= MSG_CTRUNC; 980 copylen = len; 981 } 982 983 error = copyout(cm,ctlbuf,copylen); 984 if (error) 985 goto exit; 986 987 ctlbuf += FREEBSD32_ALIGN(copylen); 988 len -= FREEBSD32_ALIGN(copylen); 989 990 if (len <= 0) 991 break; 992 993 /* Copy data */ 994 copylen = datalen; 995 if (len < copylen) { 996 msg->msg_flags |= MSG_CTRUNC; 997 copylen = len; 998 } 999 1000 error = copyout(data,ctlbuf,copylen); 1001 if (error) 1002 goto exit; 1003 1004 ctlbuf += FREEBSD32_ALIGN(copylen); 1005 len -= FREEBSD32_ALIGN(copylen); 1006 1007 if (CMSG_SPACE(datalen) < clen) { 1008 clen -= CMSG_SPACE(datalen); 1009 cm = (struct cmsghdr *) 1010 ((caddr_t)cm + CMSG_SPACE(datalen)); 1011 } else { 1012 clen = 0; 1013 cm = NULL; 1014 } 1015 } 1016 m = m->m_next; 1017 } 1018 1019 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 1020 1021 exit: 1022 return (error); 1023 1024 } 1025 1026 int 1027 freebsd32_recvmsg(td, uap) 1028 struct thread *td; 1029 struct freebsd32_recvmsg_args /* { 1030 int s; 1031 struct msghdr32 *msg; 1032 int flags; 1033 } */ *uap; 1034 { 1035 struct msghdr msg; 1036 struct msghdr32 m32; 1037 struct iovec *uiov, *iov; 1038 struct mbuf *control = NULL; 1039 struct mbuf **controlp; 1040 1041 int error; 1042 error = copyin(uap->msg, &m32, sizeof(m32)); 1043 if (error) 1044 return (error); 1045 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1046 if (error) 1047 return (error); 1048 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1049 EMSGSIZE); 1050 if (error) 1051 return (error); 1052 msg.msg_flags = uap->flags; 1053 uiov = msg.msg_iov; 1054 msg.msg_iov = iov; 1055 1056 controlp = (msg.msg_control != NULL) ? &control : NULL; 1057 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1058 if (error == 0) { 1059 msg.msg_iov = uiov; 1060 1061 if (control != NULL) 1062 error = freebsd32_copy_msg_out(&msg, control); 1063 else 1064 msg.msg_controllen = 0; 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 #ifdef COMPAT_43 1458 int 1459 ofreebsd32_getdirentries(struct thread *td, 1460 struct ofreebsd32_getdirentries_args *uap) 1461 { 1462 struct ogetdirentries_args ap; 1463 int error; 1464 long loff; 1465 int32_t loff_cut; 1466 1467 ap.fd = uap->fd; 1468 ap.buf = uap->buf; 1469 ap.count = uap->count; 1470 ap.basep = NULL; 1471 error = kern_ogetdirentries(td, &ap, &loff); 1472 if (error == 0) { 1473 loff_cut = loff; 1474 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1475 } 1476 return (error); 1477 } 1478 #endif 1479 1480 int 1481 freebsd32_getdirentries(struct thread *td, 1482 struct freebsd32_getdirentries_args *uap) 1483 { 1484 long base; 1485 int32_t base32; 1486 int error; 1487 1488 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base); 1489 if (error) 1490 return (error); 1491 if (uap->basep != NULL) { 1492 base32 = base; 1493 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1494 } 1495 return (error); 1496 } 1497 1498 #ifdef COMPAT_FREEBSD6 1499 /* versions with the 'int pad' argument */ 1500 int 1501 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1502 { 1503 struct pread_args ap; 1504 1505 ap.fd = uap->fd; 1506 ap.buf = uap->buf; 1507 ap.nbyte = uap->nbyte; 1508 ap.offset = PAIR32TO64(off_t,uap->offset); 1509 return (pread(td, &ap)); 1510 } 1511 1512 int 1513 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1514 { 1515 struct pwrite_args ap; 1516 1517 ap.fd = uap->fd; 1518 ap.buf = uap->buf; 1519 ap.nbyte = uap->nbyte; 1520 ap.offset = PAIR32TO64(off_t,uap->offset); 1521 return (pwrite(td, &ap)); 1522 } 1523 1524 int 1525 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1526 { 1527 int error; 1528 struct lseek_args ap; 1529 off_t pos; 1530 1531 ap.fd = uap->fd; 1532 ap.offset = PAIR32TO64(off_t,uap->offset); 1533 ap.whence = uap->whence; 1534 error = lseek(td, &ap); 1535 /* Expand the quad return into two parts for eax and edx */ 1536 pos = *(off_t *)(td->td_retval); 1537 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1538 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1539 return error; 1540 } 1541 1542 int 1543 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1544 { 1545 struct truncate_args ap; 1546 1547 ap.path = uap->path; 1548 ap.length = PAIR32TO64(off_t,uap->length); 1549 return (truncate(td, &ap)); 1550 } 1551 1552 int 1553 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1554 { 1555 struct ftruncate_args ap; 1556 1557 ap.fd = uap->fd; 1558 ap.length = PAIR32TO64(off_t,uap->length); 1559 return (ftruncate(td, &ap)); 1560 } 1561 #endif /* COMPAT_FREEBSD6 */ 1562 1563 struct sf_hdtr32 { 1564 uint32_t headers; 1565 int hdr_cnt; 1566 uint32_t trailers; 1567 int trl_cnt; 1568 }; 1569 1570 static int 1571 freebsd32_do_sendfile(struct thread *td, 1572 struct freebsd32_sendfile_args *uap, int compat) 1573 { 1574 struct sendfile_args ap; 1575 struct sf_hdtr32 hdtr32; 1576 struct sf_hdtr hdtr; 1577 struct uio *hdr_uio, *trl_uio; 1578 struct iovec32 *iov32; 1579 int error; 1580 1581 hdr_uio = trl_uio = NULL; 1582 1583 ap.fd = uap->fd; 1584 ap.s = uap->s; 1585 ap.offset = PAIR32TO64(off_t,uap->offset); 1586 ap.nbytes = uap->nbytes; 1587 ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */ 1588 ap.sbytes = uap->sbytes; 1589 ap.flags = uap->flags; 1590 1591 if (uap->hdtr != NULL) { 1592 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1593 if (error) 1594 goto out; 1595 PTRIN_CP(hdtr32, hdtr, headers); 1596 CP(hdtr32, hdtr, hdr_cnt); 1597 PTRIN_CP(hdtr32, hdtr, trailers); 1598 CP(hdtr32, hdtr, trl_cnt); 1599 1600 if (hdtr.headers != NULL) { 1601 iov32 = PTRIN(hdtr32.headers); 1602 error = freebsd32_copyinuio(iov32, 1603 hdtr32.hdr_cnt, &hdr_uio); 1604 if (error) 1605 goto out; 1606 } 1607 if (hdtr.trailers != NULL) { 1608 iov32 = PTRIN(hdtr32.trailers); 1609 error = freebsd32_copyinuio(iov32, 1610 hdtr32.trl_cnt, &trl_uio); 1611 if (error) 1612 goto out; 1613 } 1614 } 1615 1616 error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat); 1617 out: 1618 if (hdr_uio) 1619 free(hdr_uio, M_IOV); 1620 if (trl_uio) 1621 free(trl_uio, M_IOV); 1622 return (error); 1623 } 1624 1625 #ifdef COMPAT_FREEBSD4 1626 int 1627 freebsd4_freebsd32_sendfile(struct thread *td, 1628 struct freebsd4_freebsd32_sendfile_args *uap) 1629 { 1630 return (freebsd32_do_sendfile(td, 1631 (struct freebsd32_sendfile_args *)uap, 1)); 1632 } 1633 #endif 1634 1635 int 1636 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1637 { 1638 1639 return (freebsd32_do_sendfile(td, uap, 0)); 1640 } 1641 1642 static void 1643 copy_stat(struct stat *in, struct stat32 *out) 1644 { 1645 1646 CP(*in, *out, st_dev); 1647 CP(*in, *out, st_ino); 1648 CP(*in, *out, st_mode); 1649 CP(*in, *out, st_nlink); 1650 CP(*in, *out, st_uid); 1651 CP(*in, *out, st_gid); 1652 CP(*in, *out, st_rdev); 1653 TS_CP(*in, *out, st_atim); 1654 TS_CP(*in, *out, st_mtim); 1655 TS_CP(*in, *out, st_ctim); 1656 CP(*in, *out, st_size); 1657 CP(*in, *out, st_blocks); 1658 CP(*in, *out, st_blksize); 1659 CP(*in, *out, st_flags); 1660 CP(*in, *out, st_gen); 1661 TS_CP(*in, *out, st_birthtim); 1662 } 1663 1664 #ifdef COMPAT_43 1665 static void 1666 copy_ostat(struct stat *in, struct ostat32 *out) 1667 { 1668 1669 CP(*in, *out, st_dev); 1670 CP(*in, *out, st_ino); 1671 CP(*in, *out, st_mode); 1672 CP(*in, *out, st_nlink); 1673 CP(*in, *out, st_uid); 1674 CP(*in, *out, st_gid); 1675 CP(*in, *out, st_rdev); 1676 CP(*in, *out, st_size); 1677 TS_CP(*in, *out, st_atim); 1678 TS_CP(*in, *out, st_mtim); 1679 TS_CP(*in, *out, st_ctim); 1680 CP(*in, *out, st_blksize); 1681 CP(*in, *out, st_blocks); 1682 CP(*in, *out, st_flags); 1683 CP(*in, *out, st_gen); 1684 } 1685 #endif 1686 1687 int 1688 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1689 { 1690 struct stat sb; 1691 struct stat32 sb32; 1692 int error; 1693 1694 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1695 if (error) 1696 return (error); 1697 copy_stat(&sb, &sb32); 1698 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1699 return (error); 1700 } 1701 1702 #ifdef COMPAT_43 1703 int 1704 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1705 { 1706 struct stat sb; 1707 struct ostat32 sb32; 1708 int error; 1709 1710 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1711 if (error) 1712 return (error); 1713 copy_ostat(&sb, &sb32); 1714 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1715 return (error); 1716 } 1717 #endif 1718 1719 int 1720 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1721 { 1722 struct stat ub; 1723 struct stat32 ub32; 1724 int error; 1725 1726 error = kern_fstat(td, uap->fd, &ub); 1727 if (error) 1728 return (error); 1729 copy_stat(&ub, &ub32); 1730 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1731 return (error); 1732 } 1733 1734 #ifdef COMPAT_43 1735 int 1736 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1737 { 1738 struct stat ub; 1739 struct ostat32 ub32; 1740 int error; 1741 1742 error = kern_fstat(td, uap->fd, &ub); 1743 if (error) 1744 return (error); 1745 copy_ostat(&ub, &ub32); 1746 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1747 return (error); 1748 } 1749 #endif 1750 1751 int 1752 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1753 { 1754 struct stat ub; 1755 struct stat32 ub32; 1756 int error; 1757 1758 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1759 if (error) 1760 return (error); 1761 copy_stat(&ub, &ub32); 1762 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1763 return (error); 1764 } 1765 1766 int 1767 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1768 { 1769 struct stat sb; 1770 struct stat32 sb32; 1771 int error; 1772 1773 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1774 if (error) 1775 return (error); 1776 copy_stat(&sb, &sb32); 1777 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1778 return (error); 1779 } 1780 1781 #ifdef COMPAT_43 1782 int 1783 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1784 { 1785 struct stat sb; 1786 struct ostat32 sb32; 1787 int error; 1788 1789 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1790 if (error) 1791 return (error); 1792 copy_ostat(&sb, &sb32); 1793 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1794 return (error); 1795 } 1796 #endif 1797 1798 int 1799 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1800 { 1801 int error, name[CTL_MAXNAME]; 1802 size_t j, oldlen; 1803 1804 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1805 return (EINVAL); 1806 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1807 if (error) 1808 return (error); 1809 if (uap->oldlenp) 1810 oldlen = fuword32(uap->oldlenp); 1811 else 1812 oldlen = 0; 1813 error = userland_sysctl(td, name, uap->namelen, 1814 uap->old, &oldlen, 1, 1815 uap->new, uap->newlen, &j, SCTL_MASK32); 1816 if (error && error != ENOMEM) 1817 return (error); 1818 if (uap->oldlenp) 1819 suword32(uap->oldlenp, j); 1820 return (0); 1821 } 1822 1823 int 1824 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1825 { 1826 uint32_t version; 1827 int error; 1828 struct jail j; 1829 1830 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1831 if (error) 1832 return (error); 1833 1834 switch (version) { 1835 case 0: 1836 { 1837 /* FreeBSD single IPv4 jails. */ 1838 struct jail32_v0 j32_v0; 1839 1840 bzero(&j, sizeof(struct jail)); 1841 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1842 if (error) 1843 return (error); 1844 CP(j32_v0, j, version); 1845 PTRIN_CP(j32_v0, j, path); 1846 PTRIN_CP(j32_v0, j, hostname); 1847 j.ip4s = j32_v0.ip_number; 1848 break; 1849 } 1850 1851 case 1: 1852 /* 1853 * Version 1 was used by multi-IPv4 jail implementations 1854 * that never made it into the official kernel. 1855 */ 1856 return (EINVAL); 1857 1858 case 2: /* JAIL_API_VERSION */ 1859 { 1860 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1861 struct jail32 j32; 1862 1863 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1864 if (error) 1865 return (error); 1866 CP(j32, j, version); 1867 PTRIN_CP(j32, j, path); 1868 PTRIN_CP(j32, j, hostname); 1869 PTRIN_CP(j32, j, jailname); 1870 CP(j32, j, ip4s); 1871 CP(j32, j, ip6s); 1872 PTRIN_CP(j32, j, ip4); 1873 PTRIN_CP(j32, j, ip6); 1874 break; 1875 } 1876 1877 default: 1878 /* Sci-Fi jails are not supported, sorry. */ 1879 return (EINVAL); 1880 } 1881 return (kern_jail(td, &j)); 1882 } 1883 1884 int 1885 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1886 { 1887 struct uio *auio; 1888 int error; 1889 1890 /* Check that we have an even number of iovecs. */ 1891 if (uap->iovcnt & 1) 1892 return (EINVAL); 1893 1894 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1895 if (error) 1896 return (error); 1897 error = kern_jail_set(td, auio, uap->flags); 1898 free(auio, M_IOV); 1899 return (error); 1900 } 1901 1902 int 1903 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1904 { 1905 struct iovec32 iov32; 1906 struct uio *auio; 1907 int error, i; 1908 1909 /* Check that we have an even number of iovecs. */ 1910 if (uap->iovcnt & 1) 1911 return (EINVAL); 1912 1913 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1914 if (error) 1915 return (error); 1916 error = kern_jail_get(td, auio, uap->flags); 1917 if (error == 0) 1918 for (i = 0; i < uap->iovcnt; i++) { 1919 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1920 CP(auio->uio_iov[i], iov32, iov_len); 1921 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1922 if (error != 0) 1923 break; 1924 } 1925 free(auio, M_IOV); 1926 return (error); 1927 } 1928 1929 int 1930 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1931 { 1932 struct sigaction32 s32; 1933 struct sigaction sa, osa, *sap; 1934 int error; 1935 1936 if (uap->act) { 1937 error = copyin(uap->act, &s32, sizeof(s32)); 1938 if (error) 1939 return (error); 1940 sa.sa_handler = PTRIN(s32.sa_u); 1941 CP(s32, sa, sa_flags); 1942 CP(s32, sa, sa_mask); 1943 sap = &sa; 1944 } else 1945 sap = NULL; 1946 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 1947 if (error == 0 && uap->oact != NULL) { 1948 s32.sa_u = PTROUT(osa.sa_handler); 1949 CP(osa, s32, sa_flags); 1950 CP(osa, s32, sa_mask); 1951 error = copyout(&s32, uap->oact, sizeof(s32)); 1952 } 1953 return (error); 1954 } 1955 1956 #ifdef COMPAT_FREEBSD4 1957 int 1958 freebsd4_freebsd32_sigaction(struct thread *td, 1959 struct freebsd4_freebsd32_sigaction_args *uap) 1960 { 1961 struct sigaction32 s32; 1962 struct sigaction sa, osa, *sap; 1963 int error; 1964 1965 if (uap->act) { 1966 error = copyin(uap->act, &s32, sizeof(s32)); 1967 if (error) 1968 return (error); 1969 sa.sa_handler = PTRIN(s32.sa_u); 1970 CP(s32, sa, sa_flags); 1971 CP(s32, sa, sa_mask); 1972 sap = &sa; 1973 } else 1974 sap = NULL; 1975 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 1976 if (error == 0 && uap->oact != NULL) { 1977 s32.sa_u = PTROUT(osa.sa_handler); 1978 CP(osa, s32, sa_flags); 1979 CP(osa, s32, sa_mask); 1980 error = copyout(&s32, uap->oact, sizeof(s32)); 1981 } 1982 return (error); 1983 } 1984 #endif 1985 1986 #ifdef COMPAT_43 1987 struct osigaction32 { 1988 u_int32_t sa_u; 1989 osigset_t sa_mask; 1990 int sa_flags; 1991 }; 1992 1993 #define ONSIG 32 1994 1995 int 1996 ofreebsd32_sigaction(struct thread *td, 1997 struct ofreebsd32_sigaction_args *uap) 1998 { 1999 struct osigaction32 s32; 2000 struct sigaction sa, osa, *sap; 2001 int error; 2002 2003 if (uap->signum <= 0 || uap->signum >= ONSIG) 2004 return (EINVAL); 2005 2006 if (uap->nsa) { 2007 error = copyin(uap->nsa, &s32, sizeof(s32)); 2008 if (error) 2009 return (error); 2010 sa.sa_handler = PTRIN(s32.sa_u); 2011 CP(s32, sa, sa_flags); 2012 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2013 sap = &sa; 2014 } else 2015 sap = NULL; 2016 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2017 if (error == 0 && uap->osa != NULL) { 2018 s32.sa_u = PTROUT(osa.sa_handler); 2019 CP(osa, s32, sa_flags); 2020 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2021 error = copyout(&s32, uap->osa, sizeof(s32)); 2022 } 2023 return (error); 2024 } 2025 2026 int 2027 ofreebsd32_sigprocmask(struct thread *td, 2028 struct ofreebsd32_sigprocmask_args *uap) 2029 { 2030 sigset_t set, oset; 2031 int error; 2032 2033 OSIG2SIG(uap->mask, set); 2034 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2035 SIG2OSIG(oset, td->td_retval[0]); 2036 return (error); 2037 } 2038 2039 int 2040 ofreebsd32_sigpending(struct thread *td, 2041 struct ofreebsd32_sigpending_args *uap) 2042 { 2043 struct proc *p = td->td_proc; 2044 sigset_t siglist; 2045 2046 PROC_LOCK(p); 2047 siglist = p->p_siglist; 2048 SIGSETOR(siglist, td->td_siglist); 2049 PROC_UNLOCK(p); 2050 SIG2OSIG(siglist, td->td_retval[0]); 2051 return (0); 2052 } 2053 2054 struct sigvec32 { 2055 u_int32_t sv_handler; 2056 int sv_mask; 2057 int sv_flags; 2058 }; 2059 2060 int 2061 ofreebsd32_sigvec(struct thread *td, 2062 struct ofreebsd32_sigvec_args *uap) 2063 { 2064 struct sigvec32 vec; 2065 struct sigaction sa, osa, *sap; 2066 int error; 2067 2068 if (uap->signum <= 0 || uap->signum >= ONSIG) 2069 return (EINVAL); 2070 2071 if (uap->nsv) { 2072 error = copyin(uap->nsv, &vec, sizeof(vec)); 2073 if (error) 2074 return (error); 2075 sa.sa_handler = PTRIN(vec.sv_handler); 2076 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2077 sa.sa_flags = vec.sv_flags; 2078 sa.sa_flags ^= SA_RESTART; 2079 sap = &sa; 2080 } else 2081 sap = NULL; 2082 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2083 if (error == 0 && uap->osv != NULL) { 2084 vec.sv_handler = PTROUT(osa.sa_handler); 2085 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2086 vec.sv_flags = osa.sa_flags; 2087 vec.sv_flags &= ~SA_NOCLDWAIT; 2088 vec.sv_flags ^= SA_RESTART; 2089 error = copyout(&vec, uap->osv, sizeof(vec)); 2090 } 2091 return (error); 2092 } 2093 2094 int 2095 ofreebsd32_sigblock(struct thread *td, 2096 struct ofreebsd32_sigblock_args *uap) 2097 { 2098 sigset_t set, oset; 2099 2100 OSIG2SIG(uap->mask, set); 2101 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2102 SIG2OSIG(oset, td->td_retval[0]); 2103 return (0); 2104 } 2105 2106 int 2107 ofreebsd32_sigsetmask(struct thread *td, 2108 struct ofreebsd32_sigsetmask_args *uap) 2109 { 2110 sigset_t set, oset; 2111 2112 OSIG2SIG(uap->mask, set); 2113 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2114 SIG2OSIG(oset, td->td_retval[0]); 2115 return (0); 2116 } 2117 2118 int 2119 ofreebsd32_sigsuspend(struct thread *td, 2120 struct ofreebsd32_sigsuspend_args *uap) 2121 { 2122 sigset_t mask; 2123 2124 OSIG2SIG(uap->mask, mask); 2125 return (kern_sigsuspend(td, mask)); 2126 } 2127 2128 struct sigstack32 { 2129 u_int32_t ss_sp; 2130 int ss_onstack; 2131 }; 2132 2133 int 2134 ofreebsd32_sigstack(struct thread *td, 2135 struct ofreebsd32_sigstack_args *uap) 2136 { 2137 struct sigstack32 s32; 2138 struct sigstack nss, oss; 2139 int error = 0, unss; 2140 2141 if (uap->nss != NULL) { 2142 error = copyin(uap->nss, &s32, sizeof(s32)); 2143 if (error) 2144 return (error); 2145 nss.ss_sp = PTRIN(s32.ss_sp); 2146 CP(s32, nss, ss_onstack); 2147 unss = 1; 2148 } else { 2149 unss = 0; 2150 } 2151 oss.ss_sp = td->td_sigstk.ss_sp; 2152 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2153 if (unss) { 2154 td->td_sigstk.ss_sp = nss.ss_sp; 2155 td->td_sigstk.ss_size = 0; 2156 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2157 td->td_pflags |= TDP_ALTSTACK; 2158 } 2159 if (uap->oss != NULL) { 2160 s32.ss_sp = PTROUT(oss.ss_sp); 2161 CP(oss, s32, ss_onstack); 2162 error = copyout(&s32, uap->oss, sizeof(s32)); 2163 } 2164 return (error); 2165 } 2166 #endif 2167 2168 int 2169 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2170 { 2171 struct timespec32 rmt32, rqt32; 2172 struct timespec rmt, rqt; 2173 int error; 2174 2175 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2176 if (error) 2177 return (error); 2178 2179 CP(rqt32, rqt, tv_sec); 2180 CP(rqt32, rqt, tv_nsec); 2181 2182 if (uap->rmtp && 2183 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2184 return (EFAULT); 2185 error = kern_nanosleep(td, &rqt, &rmt); 2186 if (error && uap->rmtp) { 2187 int error2; 2188 2189 CP(rmt, rmt32, tv_sec); 2190 CP(rmt, rmt32, tv_nsec); 2191 2192 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2193 if (error2) 2194 error = error2; 2195 } 2196 return (error); 2197 } 2198 2199 int 2200 freebsd32_clock_gettime(struct thread *td, 2201 struct freebsd32_clock_gettime_args *uap) 2202 { 2203 struct timespec ats; 2204 struct timespec32 ats32; 2205 int error; 2206 2207 error = kern_clock_gettime(td, uap->clock_id, &ats); 2208 if (error == 0) { 2209 CP(ats, ats32, tv_sec); 2210 CP(ats, ats32, tv_nsec); 2211 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2212 } 2213 return (error); 2214 } 2215 2216 int 2217 freebsd32_clock_settime(struct thread *td, 2218 struct freebsd32_clock_settime_args *uap) 2219 { 2220 struct timespec ats; 2221 struct timespec32 ats32; 2222 int error; 2223 2224 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2225 if (error) 2226 return (error); 2227 CP(ats32, ats, tv_sec); 2228 CP(ats32, ats, tv_nsec); 2229 2230 return (kern_clock_settime(td, uap->clock_id, &ats)); 2231 } 2232 2233 int 2234 freebsd32_clock_getres(struct thread *td, 2235 struct freebsd32_clock_getres_args *uap) 2236 { 2237 struct timespec ts; 2238 struct timespec32 ts32; 2239 int error; 2240 2241 if (uap->tp == NULL) 2242 return (0); 2243 error = kern_clock_getres(td, uap->clock_id, &ts); 2244 if (error == 0) { 2245 CP(ts, ts32, tv_sec); 2246 CP(ts, ts32, tv_nsec); 2247 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2248 } 2249 return (error); 2250 } 2251 2252 int 2253 freebsd32_thr_new(struct thread *td, 2254 struct freebsd32_thr_new_args *uap) 2255 { 2256 struct thr_param32 param32; 2257 struct thr_param param; 2258 int error; 2259 2260 if (uap->param_size < 0 || 2261 uap->param_size > sizeof(struct thr_param32)) 2262 return (EINVAL); 2263 bzero(¶m, sizeof(struct thr_param)); 2264 bzero(¶m32, sizeof(struct thr_param32)); 2265 error = copyin(uap->param, ¶m32, uap->param_size); 2266 if (error != 0) 2267 return (error); 2268 param.start_func = PTRIN(param32.start_func); 2269 param.arg = PTRIN(param32.arg); 2270 param.stack_base = PTRIN(param32.stack_base); 2271 param.stack_size = param32.stack_size; 2272 param.tls_base = PTRIN(param32.tls_base); 2273 param.tls_size = param32.tls_size; 2274 param.child_tid = PTRIN(param32.child_tid); 2275 param.parent_tid = PTRIN(param32.parent_tid); 2276 param.flags = param32.flags; 2277 param.rtp = PTRIN(param32.rtp); 2278 param.spare[0] = PTRIN(param32.spare[0]); 2279 param.spare[1] = PTRIN(param32.spare[1]); 2280 param.spare[2] = PTRIN(param32.spare[2]); 2281 2282 return (kern_thr_new(td, ¶m)); 2283 } 2284 2285 int 2286 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2287 { 2288 struct timespec32 ts32; 2289 struct timespec ts, *tsp; 2290 int error; 2291 2292 error = 0; 2293 tsp = NULL; 2294 if (uap->timeout != NULL) { 2295 error = copyin((const void *)uap->timeout, (void *)&ts32, 2296 sizeof(struct timespec32)); 2297 if (error != 0) 2298 return (error); 2299 ts.tv_sec = ts32.tv_sec; 2300 ts.tv_nsec = ts32.tv_nsec; 2301 tsp = &ts; 2302 } 2303 return (kern_thr_suspend(td, tsp)); 2304 } 2305 2306 void 2307 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2308 { 2309 bzero(dst, sizeof(*dst)); 2310 dst->si_signo = src->si_signo; 2311 dst->si_errno = src->si_errno; 2312 dst->si_code = src->si_code; 2313 dst->si_pid = src->si_pid; 2314 dst->si_uid = src->si_uid; 2315 dst->si_status = src->si_status; 2316 dst->si_addr = (uintptr_t)src->si_addr; 2317 dst->si_value.sigval_int = src->si_value.sival_int; 2318 dst->si_timerid = src->si_timerid; 2319 dst->si_overrun = src->si_overrun; 2320 } 2321 2322 int 2323 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2324 { 2325 struct timespec32 ts32; 2326 struct timespec ts; 2327 struct timespec *timeout; 2328 sigset_t set; 2329 ksiginfo_t ksi; 2330 struct siginfo32 si32; 2331 int error; 2332 2333 if (uap->timeout) { 2334 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2335 if (error) 2336 return (error); 2337 ts.tv_sec = ts32.tv_sec; 2338 ts.tv_nsec = ts32.tv_nsec; 2339 timeout = &ts; 2340 } else 2341 timeout = NULL; 2342 2343 error = copyin(uap->set, &set, sizeof(set)); 2344 if (error) 2345 return (error); 2346 2347 error = kern_sigtimedwait(td, set, &ksi, timeout); 2348 if (error) 2349 return (error); 2350 2351 if (uap->info) { 2352 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2353 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2354 } 2355 2356 if (error == 0) 2357 td->td_retval[0] = ksi.ksi_signo; 2358 return (error); 2359 } 2360 2361 /* 2362 * MPSAFE 2363 */ 2364 int 2365 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2366 { 2367 ksiginfo_t ksi; 2368 struct siginfo32 si32; 2369 sigset_t set; 2370 int error; 2371 2372 error = copyin(uap->set, &set, sizeof(set)); 2373 if (error) 2374 return (error); 2375 2376 error = kern_sigtimedwait(td, set, &ksi, NULL); 2377 if (error) 2378 return (error); 2379 2380 if (uap->info) { 2381 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2382 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2383 } 2384 if (error == 0) 2385 td->td_retval[0] = ksi.ksi_signo; 2386 return (error); 2387 } 2388 2389 int 2390 freebsd32_cpuset_setid(struct thread *td, 2391 struct freebsd32_cpuset_setid_args *uap) 2392 { 2393 struct cpuset_setid_args ap; 2394 2395 ap.which = uap->which; 2396 ap.id = PAIR32TO64(id_t,uap->id); 2397 ap.setid = uap->setid; 2398 2399 return (cpuset_setid(td, &ap)); 2400 } 2401 2402 int 2403 freebsd32_cpuset_getid(struct thread *td, 2404 struct freebsd32_cpuset_getid_args *uap) 2405 { 2406 struct cpuset_getid_args ap; 2407 2408 ap.level = uap->level; 2409 ap.which = uap->which; 2410 ap.id = PAIR32TO64(id_t,uap->id); 2411 ap.setid = uap->setid; 2412 2413 return (cpuset_getid(td, &ap)); 2414 } 2415 2416 int 2417 freebsd32_cpuset_getaffinity(struct thread *td, 2418 struct freebsd32_cpuset_getaffinity_args *uap) 2419 { 2420 struct cpuset_getaffinity_args ap; 2421 2422 ap.level = uap->level; 2423 ap.which = uap->which; 2424 ap.id = PAIR32TO64(id_t,uap->id); 2425 ap.cpusetsize = uap->cpusetsize; 2426 ap.mask = uap->mask; 2427 2428 return (cpuset_getaffinity(td, &ap)); 2429 } 2430 2431 int 2432 freebsd32_cpuset_setaffinity(struct thread *td, 2433 struct freebsd32_cpuset_setaffinity_args *uap) 2434 { 2435 struct cpuset_setaffinity_args ap; 2436 2437 ap.level = uap->level; 2438 ap.which = uap->which; 2439 ap.id = PAIR32TO64(id_t,uap->id); 2440 ap.cpusetsize = uap->cpusetsize; 2441 ap.mask = uap->mask; 2442 2443 return (cpuset_setaffinity(td, &ap)); 2444 } 2445 2446 int 2447 freebsd32_nmount(struct thread *td, 2448 struct freebsd32_nmount_args /* { 2449 struct iovec *iovp; 2450 unsigned int iovcnt; 2451 int flags; 2452 } */ *uap) 2453 { 2454 struct uio *auio; 2455 int error; 2456 2457 AUDIT_ARG_FFLAGS(uap->flags); 2458 2459 /* 2460 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2461 * userspace to set this flag, but we must filter it out if we want 2462 * MNT_UPDATE on the root file system to work. 2463 * MNT_ROOTFS should only be set by the kernel when mounting its 2464 * root file system. 2465 */ 2466 uap->flags &= ~MNT_ROOTFS; 2467 2468 /* 2469 * check that we have an even number of iovec's 2470 * and that we have at least two options. 2471 */ 2472 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2473 return (EINVAL); 2474 2475 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2476 if (error) 2477 return (error); 2478 error = vfs_donmount(td, uap->flags, auio); 2479 2480 free(auio, M_IOV); 2481 return error; 2482 } 2483 2484 #if 0 2485 int 2486 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2487 { 2488 struct yyy32 *p32, s32; 2489 struct yyy *p = NULL, s; 2490 struct xxx_arg ap; 2491 int error; 2492 2493 if (uap->zzz) { 2494 error = copyin(uap->zzz, &s32, sizeof(s32)); 2495 if (error) 2496 return (error); 2497 /* translate in */ 2498 p = &s; 2499 } 2500 error = kern_xxx(td, p); 2501 if (error) 2502 return (error); 2503 if (uap->zzz) { 2504 /* translate out */ 2505 error = copyout(&s32, p32, sizeof(s32)); 2506 } 2507 return (error); 2508 } 2509 #endif 2510 2511 int 2512 syscall32_register(int *offset, struct sysent *new_sysent, 2513 struct sysent *old_sysent) 2514 { 2515 if (*offset == NO_SYSCALL) { 2516 int i; 2517 2518 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2519 if (freebsd32_sysent[i].sy_call == 2520 (sy_call_t *)lkmnosys) 2521 break; 2522 if (i == SYS_MAXSYSCALL) 2523 return (ENFILE); 2524 *offset = i; 2525 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2526 return (EINVAL); 2527 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2528 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2529 return (EEXIST); 2530 2531 *old_sysent = freebsd32_sysent[*offset]; 2532 freebsd32_sysent[*offset] = *new_sysent; 2533 return 0; 2534 } 2535 2536 int 2537 syscall32_deregister(int *offset, struct sysent *old_sysent) 2538 { 2539 2540 if (*offset) 2541 freebsd32_sysent[*offset] = *old_sysent; 2542 return 0; 2543 } 2544 2545 int 2546 syscall32_module_handler(struct module *mod, int what, void *arg) 2547 { 2548 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2549 modspecific_t ms; 2550 int error; 2551 2552 switch (what) { 2553 case MOD_LOAD: 2554 error = syscall32_register(data->offset, data->new_sysent, 2555 &data->old_sysent); 2556 if (error) { 2557 /* Leave a mark so we know to safely unload below. */ 2558 data->offset = NULL; 2559 return error; 2560 } 2561 ms.intval = *data->offset; 2562 MOD_XLOCK; 2563 module_setspecific(mod, &ms); 2564 MOD_XUNLOCK; 2565 if (data->chainevh) 2566 error = data->chainevh(mod, what, data->chainarg); 2567 return (error); 2568 case MOD_UNLOAD: 2569 /* 2570 * MOD_LOAD failed, so just return without calling the 2571 * chained handler since we didn't pass along the MOD_LOAD 2572 * event. 2573 */ 2574 if (data->offset == NULL) 2575 return (0); 2576 if (data->chainevh) { 2577 error = data->chainevh(mod, what, data->chainarg); 2578 if (error) 2579 return (error); 2580 } 2581 error = syscall32_deregister(data->offset, &data->old_sysent); 2582 return (error); 2583 default: 2584 error = EOPNOTSUPP; 2585 if (data->chainevh) 2586 error = data->chainevh(mod, what, data->chainarg); 2587 return (error); 2588 } 2589 } 2590 2591 int 2592 syscall32_helper_register(struct syscall_helper_data *sd) 2593 { 2594 struct syscall_helper_data *sd1; 2595 int error; 2596 2597 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2598 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2599 &sd1->old_sysent); 2600 if (error != 0) { 2601 syscall32_helper_unregister(sd); 2602 return (error); 2603 } 2604 sd1->registered = 1; 2605 } 2606 return (0); 2607 } 2608 2609 int 2610 syscall32_helper_unregister(struct syscall_helper_data *sd) 2611 { 2612 struct syscall_helper_data *sd1; 2613 2614 for (sd1 = sd; sd1->registered != 0; sd1++) { 2615 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2616 sd1->registered = 0; 2617 } 2618 return (0); 2619 } 2620 2621 register_t * 2622 freebsd32_copyout_strings(struct image_params *imgp) 2623 { 2624 int argc, envc, i; 2625 u_int32_t *vectp; 2626 char *stringp, *destp; 2627 u_int32_t *stack_base; 2628 struct freebsd32_ps_strings *arginfo; 2629 char canary[sizeof(long) * 8]; 2630 int32_t pagesizes32[MAXPAGESIZES]; 2631 size_t execpath_len; 2632 int szsigcode; 2633 2634 /* 2635 * Calculate string base and vector table pointers. 2636 * Also deal with signal trampoline code for this exec type. 2637 */ 2638 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2639 execpath_len = strlen(imgp->execpath) + 1; 2640 else 2641 execpath_len = 0; 2642 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2643 sv_psstrings; 2644 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2645 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2646 else 2647 szsigcode = 0; 2648 destp = (caddr_t)arginfo - szsigcode - SPARE_USRSPACE - 2649 roundup(execpath_len, sizeof(char *)) - 2650 roundup(sizeof(canary), sizeof(char *)) - 2651 roundup(sizeof(pagesizes32), sizeof(char *)) - 2652 roundup((ARG_MAX - imgp->args->stringspace), sizeof(char *)); 2653 2654 /* 2655 * install sigcode 2656 */ 2657 if (szsigcode != 0) 2658 copyout(imgp->proc->p_sysent->sv_sigcode, 2659 ((caddr_t)arginfo - szsigcode), szsigcode); 2660 2661 /* 2662 * Copy the image path for the rtld. 2663 */ 2664 if (execpath_len != 0) { 2665 imgp->execpathp = (uintptr_t)arginfo - szsigcode - execpath_len; 2666 copyout(imgp->execpath, (void *)imgp->execpathp, 2667 execpath_len); 2668 } 2669 2670 /* 2671 * Prepare the canary for SSP. 2672 */ 2673 arc4rand(canary, sizeof(canary), 0); 2674 imgp->canary = (uintptr_t)arginfo - szsigcode - execpath_len - 2675 sizeof(canary); 2676 copyout(canary, (void *)imgp->canary, sizeof(canary)); 2677 imgp->canarylen = sizeof(canary); 2678 2679 /* 2680 * Prepare the pagesizes array. 2681 */ 2682 for (i = 0; i < MAXPAGESIZES; i++) 2683 pagesizes32[i] = (uint32_t)pagesizes[i]; 2684 imgp->pagesizes = (uintptr_t)arginfo - szsigcode - execpath_len - 2685 roundup(sizeof(canary), sizeof(char *)) - sizeof(pagesizes32); 2686 copyout(pagesizes32, (void *)imgp->pagesizes, sizeof(pagesizes32)); 2687 imgp->pagesizeslen = sizeof(pagesizes32); 2688 2689 /* 2690 * If we have a valid auxargs ptr, prepare some room 2691 * on the stack. 2692 */ 2693 if (imgp->auxargs) { 2694 /* 2695 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2696 * lower compatibility. 2697 */ 2698 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2699 : (AT_COUNT * 2); 2700 /* 2701 * The '+ 2' is for the null pointers at the end of each of 2702 * the arg and env vector sets,and imgp->auxarg_size is room 2703 * for argument of Runtime loader. 2704 */ 2705 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2706 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2707 sizeof(u_int32_t)); 2708 } else 2709 /* 2710 * The '+ 2' is for the null pointers at the end of each of 2711 * the arg and env vector sets 2712 */ 2713 vectp = (u_int32_t *) 2714 (destp - (imgp->args->argc + imgp->args->envc + 2) * sizeof(u_int32_t)); 2715 2716 /* 2717 * vectp also becomes our initial stack base 2718 */ 2719 stack_base = vectp; 2720 2721 stringp = imgp->args->begin_argv; 2722 argc = imgp->args->argc; 2723 envc = imgp->args->envc; 2724 /* 2725 * Copy out strings - arguments and environment. 2726 */ 2727 copyout(stringp, destp, ARG_MAX - imgp->args->stringspace); 2728 2729 /* 2730 * Fill in "ps_strings" struct for ps, w, etc. 2731 */ 2732 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2733 suword32(&arginfo->ps_nargvstr, argc); 2734 2735 /* 2736 * Fill in argument portion of vector table. 2737 */ 2738 for (; argc > 0; --argc) { 2739 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2740 while (*stringp++ != 0) 2741 destp++; 2742 destp++; 2743 } 2744 2745 /* a null vector table pointer separates the argp's from the envp's */ 2746 suword32(vectp++, 0); 2747 2748 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2749 suword32(&arginfo->ps_nenvstr, envc); 2750 2751 /* 2752 * Fill in environment portion of vector table. 2753 */ 2754 for (; envc > 0; --envc) { 2755 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2756 while (*stringp++ != 0) 2757 destp++; 2758 destp++; 2759 } 2760 2761 /* end of vector table is a null pointer */ 2762 suword32(vectp, 0); 2763 2764 return ((register_t *)stack_base); 2765 } 2766 2767 int 2768 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2769 { 2770 struct kld_file_stat stat; 2771 struct kld32_file_stat stat32; 2772 int error, version; 2773 2774 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2775 != 0) 2776 return (error); 2777 if (version != sizeof(struct kld32_file_stat_1) && 2778 version != sizeof(struct kld32_file_stat)) 2779 return (EINVAL); 2780 2781 error = kern_kldstat(td, uap->fileid, &stat); 2782 if (error != 0) 2783 return (error); 2784 2785 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name)); 2786 CP(stat, stat32, refs); 2787 CP(stat, stat32, id); 2788 PTROUT_CP(stat, stat32, address); 2789 CP(stat, stat32, size); 2790 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname)); 2791 return (copyout(&stat32, uap->stat, version)); 2792 } 2793