Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/compat/freebsd32/freebsd32_misc.c
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1 /*- 2 * Copyright (c) 2002 Doug Rabson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_compat.h" 31 #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_kern.h> 91 #include <vm/vm_param.h> 92 #include <vm/pmap.h> 93 #include <vm/vm_map.h> 94 #include <vm/vm_object.h> 95 #include <vm/vm_extern.h> 96 97 #include <machine/cpu.h> 98 #include <machine/elf.h> 99 100 #include <security/audit/audit.h> 101 102 #include <compat/freebsd32/freebsd32_util.h> 103 #include <compat/freebsd32/freebsd32.h> 104 #include <compat/freebsd32/freebsd32_ipc.h> 105 #include <compat/freebsd32/freebsd32_signal.h> 106 #include <compat/freebsd32/freebsd32_proto.h> 107 108 CTASSERT(sizeof(struct timeval32) == 8); 109 CTASSERT(sizeof(struct timespec32) == 8); 110 CTASSERT(sizeof(struct itimerval32) == 16); 111 CTASSERT(sizeof(struct statfs32) == 256); 112 CTASSERT(sizeof(struct rusage32) == 72); 113 CTASSERT(sizeof(struct sigaltstack32) == 12); 114 CTASSERT(sizeof(struct kevent32) == 20); 115 CTASSERT(sizeof(struct iovec32) == 8); 116 CTASSERT(sizeof(struct msghdr32) == 28); 117 CTASSERT(sizeof(struct stat32) == 96); 118 CTASSERT(sizeof(struct sigaction32) == 24); 119 120 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 121 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 122 123 #if BYTE_ORDER == BIG_ENDIAN 124 #define PAIR32TO64(type, name) ((name ## 2) | ((type)(name ## 1) << 32)) 125 #define RETVAL_HI 0 126 #define RETVAL_LO 1 127 #else 128 #define PAIR32TO64(type, name) ((name ## 1) | ((type)(name ## 2) << 32)) 129 #define RETVAL_HI 1 130 #define RETVAL_LO 0 131 #endif 132 133 void 134 freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 135 { 136 137 TV_CP(*s, *s32, ru_utime); 138 TV_CP(*s, *s32, ru_stime); 139 CP(*s, *s32, ru_maxrss); 140 CP(*s, *s32, ru_ixrss); 141 CP(*s, *s32, ru_idrss); 142 CP(*s, *s32, ru_isrss); 143 CP(*s, *s32, ru_minflt); 144 CP(*s, *s32, ru_majflt); 145 CP(*s, *s32, ru_nswap); 146 CP(*s, *s32, ru_inblock); 147 CP(*s, *s32, ru_oublock); 148 CP(*s, *s32, ru_msgsnd); 149 CP(*s, *s32, ru_msgrcv); 150 CP(*s, *s32, ru_nsignals); 151 CP(*s, *s32, ru_nvcsw); 152 CP(*s, *s32, ru_nivcsw); 153 } 154 155 int 156 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 157 { 158 int error, status; 159 struct rusage32 ru32; 160 struct rusage ru, *rup; 161 162 if (uap->rusage != NULL) 163 rup = &ru; 164 else 165 rup = NULL; 166 error = kern_wait(td, uap->pid, &status, uap->options, rup); 167 if (error) 168 return (error); 169 if (uap->status != NULL) 170 error = copyout(&status, uap->status, sizeof(status)); 171 if (uap->rusage != NULL && error == 0) { 172 freebsd32_rusage_out(&ru, &ru32); 173 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 174 } 175 return (error); 176 } 177 178 #ifdef COMPAT_FREEBSD4 179 static void 180 copy_statfs(struct statfs *in, struct statfs32 *out) 181 { 182 183 statfs_scale_blocks(in, INT32_MAX); 184 bzero(out, sizeof(*out)); 185 CP(*in, *out, f_bsize); 186 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 187 CP(*in, *out, f_blocks); 188 CP(*in, *out, f_bfree); 189 CP(*in, *out, f_bavail); 190 out->f_files = MIN(in->f_files, INT32_MAX); 191 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 192 CP(*in, *out, f_fsid); 193 CP(*in, *out, f_owner); 194 CP(*in, *out, f_type); 195 CP(*in, *out, f_flags); 196 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 197 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 198 strlcpy(out->f_fstypename, 199 in->f_fstypename, MFSNAMELEN); 200 strlcpy(out->f_mntonname, 201 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 202 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 203 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 204 strlcpy(out->f_mntfromname, 205 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 206 } 207 #endif 208 209 #ifdef COMPAT_FREEBSD4 210 int 211 freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 212 { 213 struct statfs *buf, *sp; 214 struct statfs32 stat32; 215 size_t count, size; 216 int error; 217 218 count = uap->bufsize / sizeof(struct statfs32); 219 size = count * sizeof(struct statfs); 220 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags); 221 if (size > 0) { 222 count = td->td_retval[0]; 223 sp = buf; 224 while (count > 0 && error == 0) { 225 copy_statfs(sp, &stat32); 226 error = copyout(&stat32, uap->buf, sizeof(stat32)); 227 sp++; 228 uap->buf++; 229 count--; 230 } 231 free(buf, M_TEMP); 232 } 233 return (error); 234 } 235 #endif 236 237 int 238 freebsd32_sigaltstack(struct thread *td, 239 struct freebsd32_sigaltstack_args *uap) 240 { 241 struct sigaltstack32 s32; 242 struct sigaltstack ss, oss, *ssp; 243 int error; 244 245 if (uap->ss != NULL) { 246 error = copyin(uap->ss, &s32, sizeof(s32)); 247 if (error) 248 return (error); 249 PTRIN_CP(s32, ss, ss_sp); 250 CP(s32, ss, ss_size); 251 CP(s32, ss, ss_flags); 252 ssp = &ss; 253 } else 254 ssp = NULL; 255 error = kern_sigaltstack(td, ssp, &oss); 256 if (error == 0 && uap->oss != NULL) { 257 PTROUT_CP(oss, s32, ss_sp); 258 CP(oss, s32, ss_size); 259 CP(oss, s32, ss_flags); 260 error = copyout(&s32, uap->oss, sizeof(s32)); 261 } 262 return (error); 263 } 264 265 /* 266 * Custom version of exec_copyin_args() so that we can translate 267 * the pointers. 268 */ 269 int 270 freebsd32_exec_copyin_args(struct image_args *args, char *fname, 271 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 272 { 273 char *argp, *envp; 274 u_int32_t *p32, arg; 275 size_t length; 276 int error; 277 278 bzero(args, sizeof(*args)); 279 if (argv == NULL) 280 return (EFAULT); 281 282 /* 283 * Allocate temporary demand zeroed space for argument and 284 * environment strings 285 */ 286 args->buf = (char *) kmem_alloc_wait(exec_map, 287 PATH_MAX + ARG_MAX + MAXSHELLCMDLEN); 288 if (args->buf == NULL) 289 return (ENOMEM); 290 args->begin_argv = args->buf; 291 args->endp = args->begin_argv; 292 args->stringspace = ARG_MAX; 293 294 /* 295 * Copy the file name. 296 */ 297 if (fname != NULL) { 298 args->fname = args->buf + ARG_MAX; 299 error = (segflg == UIO_SYSSPACE) ? 300 copystr(fname, args->fname, PATH_MAX, &length) : 301 copyinstr(fname, args->fname, PATH_MAX, &length); 302 if (error != 0) 303 goto err_exit; 304 } else 305 args->fname = NULL; 306 307 /* 308 * extract arguments first 309 */ 310 p32 = argv; 311 for (;;) { 312 error = copyin(p32++, &arg, sizeof(arg)); 313 if (error) 314 goto err_exit; 315 if (arg == 0) 316 break; 317 argp = PTRIN(arg); 318 error = copyinstr(argp, args->endp, args->stringspace, &length); 319 if (error) { 320 if (error == ENAMETOOLONG) 321 error = E2BIG; 322 goto err_exit; 323 } 324 args->stringspace -= length; 325 args->endp += length; 326 args->argc++; 327 } 328 329 args->begin_envv = args->endp; 330 331 /* 332 * extract environment strings 333 */ 334 if (envv) { 335 p32 = envv; 336 for (;;) { 337 error = copyin(p32++, &arg, sizeof(arg)); 338 if (error) 339 goto err_exit; 340 if (arg == 0) 341 break; 342 envp = PTRIN(arg); 343 error = copyinstr(envp, args->endp, args->stringspace, 344 &length); 345 if (error) { 346 if (error == ENAMETOOLONG) 347 error = E2BIG; 348 goto err_exit; 349 } 350 args->stringspace -= length; 351 args->endp += length; 352 args->envc++; 353 } 354 } 355 356 return (0); 357 358 err_exit: 359 kmem_free_wakeup(exec_map, (vm_offset_t)args->buf, 360 PATH_MAX + ARG_MAX + MAXSHELLCMDLEN); 361 args->buf = NULL; 362 return (error); 363 } 364 365 int 366 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 367 { 368 struct image_args eargs; 369 int error; 370 371 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 372 uap->argv, uap->envv); 373 if (error == 0) 374 error = kern_execve(td, &eargs, NULL); 375 return (error); 376 } 377 378 int 379 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 380 { 381 struct image_args eargs; 382 int error; 383 384 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 385 uap->argv, uap->envv); 386 if (error == 0) { 387 eargs.fd = uap->fd; 388 error = kern_execve(td, &eargs, NULL); 389 } 390 return (error); 391 } 392 393 #ifdef __ia64__ 394 static int 395 freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 396 int prot, int fd, off_t pos) 397 { 398 vm_map_t map; 399 vm_map_entry_t entry; 400 int rv; 401 402 map = &td->td_proc->p_vmspace->vm_map; 403 if (fd != -1) 404 prot |= VM_PROT_WRITE; 405 406 if (vm_map_lookup_entry(map, start, &entry)) { 407 if ((entry->protection & prot) != prot) { 408 rv = vm_map_protect(map, 409 trunc_page(start), 410 round_page(end), 411 entry->protection | prot, 412 FALSE); 413 if (rv != KERN_SUCCESS) 414 return (EINVAL); 415 } 416 } else { 417 vm_offset_t addr = trunc_page(start); 418 rv = vm_map_find(map, 0, 0, 419 &addr, PAGE_SIZE, FALSE, prot, 420 VM_PROT_ALL, 0); 421 if (rv != KERN_SUCCESS) 422 return (EINVAL); 423 } 424 425 if (fd != -1) { 426 struct pread_args r; 427 r.fd = fd; 428 r.buf = (void *) start; 429 r.nbyte = end - start; 430 r.offset = pos; 431 return (pread(td, &r)); 432 } else { 433 while (start < end) { 434 subyte((void *) start, 0); 435 start++; 436 } 437 return (0); 438 } 439 } 440 #endif 441 442 int 443 freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 444 { 445 struct mprotect_args ap; 446 447 ap.addr = PTRIN(uap->addr); 448 ap.len = uap->len; 449 ap.prot = uap->prot; 450 #if defined(__amd64__) || defined(__ia64__) 451 if (i386_read_exec && (ap.prot & PROT_READ) != 0) 452 ap.prot |= PROT_EXEC; 453 #endif 454 return (mprotect(td, &ap)); 455 } 456 457 int 458 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 459 { 460 struct mmap_args ap; 461 vm_offset_t addr = (vm_offset_t) uap->addr; 462 vm_size_t len = uap->len; 463 int prot = uap->prot; 464 int flags = uap->flags; 465 int fd = uap->fd; 466 off_t pos = PAIR32TO64(off_t,uap->pos); 467 #ifdef __ia64__ 468 vm_size_t pageoff; 469 int error; 470 471 /* 472 * Attempt to handle page size hassles. 473 */ 474 pageoff = (pos & PAGE_MASK); 475 if (flags & MAP_FIXED) { 476 vm_offset_t start, end; 477 start = addr; 478 end = addr + len; 479 480 if (start != trunc_page(start)) { 481 error = freebsd32_mmap_partial(td, start, 482 round_page(start), prot, 483 fd, pos); 484 if (fd != -1) 485 pos += round_page(start) - start; 486 start = round_page(start); 487 } 488 if (end != round_page(end)) { 489 vm_offset_t t = trunc_page(end); 490 error = freebsd32_mmap_partial(td, t, end, 491 prot, fd, 492 pos + t - start); 493 end = trunc_page(end); 494 } 495 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 496 /* 497 * We can't map this region at all. The specified 498 * address doesn't have the same alignment as the file 499 * position. Fake the mapping by simply reading the 500 * entire region into memory. First we need to make 501 * sure the region exists. 502 */ 503 vm_map_t map; 504 struct pread_args r; 505 int rv; 506 507 prot |= VM_PROT_WRITE; 508 map = &td->td_proc->p_vmspace->vm_map; 509 rv = vm_map_remove(map, start, end); 510 if (rv != KERN_SUCCESS) 511 return (EINVAL); 512 rv = vm_map_find(map, 0, 0, 513 &start, end - start, FALSE, 514 prot, VM_PROT_ALL, 0); 515 if (rv != KERN_SUCCESS) 516 return (EINVAL); 517 r.fd = fd; 518 r.buf = (void *) start; 519 r.nbyte = end - start; 520 r.offset = pos; 521 error = pread(td, &r); 522 if (error) 523 return (error); 524 525 td->td_retval[0] = addr; 526 return (0); 527 } 528 if (end == start) { 529 /* 530 * After dealing with the ragged ends, there 531 * might be none left. 532 */ 533 td->td_retval[0] = addr; 534 return (0); 535 } 536 addr = start; 537 len = end - start; 538 } 539 #endif 540 541 #if defined(__amd64__) || defined(__ia64__) 542 if (i386_read_exec && (prot & PROT_READ)) 543 prot |= PROT_EXEC; 544 #endif 545 546 ap.addr = (void *) addr; 547 ap.len = len; 548 ap.prot = prot; 549 ap.flags = flags; 550 ap.fd = fd; 551 ap.pos = pos; 552 553 return (mmap(td, &ap)); 554 } 555 556 #ifdef COMPAT_FREEBSD6 557 int 558 freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 559 { 560 struct freebsd32_mmap_args ap; 561 562 ap.addr = uap->addr; 563 ap.len = uap->len; 564 ap.prot = uap->prot; 565 ap.flags = uap->flags; 566 ap.fd = uap->fd; 567 ap.pos1 = uap->pos1; 568 ap.pos2 = uap->pos2; 569 570 return (freebsd32_mmap(td, &ap)); 571 } 572 #endif 573 574 int 575 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 576 { 577 struct itimerval itv, oitv, *itvp; 578 struct itimerval32 i32; 579 int error; 580 581 if (uap->itv != NULL) { 582 error = copyin(uap->itv, &i32, sizeof(i32)); 583 if (error) 584 return (error); 585 TV_CP(i32, itv, it_interval); 586 TV_CP(i32, itv, it_value); 587 itvp = &itv; 588 } else 589 itvp = NULL; 590 error = kern_setitimer(td, uap->which, itvp, &oitv); 591 if (error || uap->oitv == NULL) 592 return (error); 593 TV_CP(oitv, i32, it_interval); 594 TV_CP(oitv, i32, it_value); 595 return (copyout(&i32, uap->oitv, sizeof(i32))); 596 } 597 598 int 599 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 600 { 601 struct itimerval itv; 602 struct itimerval32 i32; 603 int error; 604 605 error = kern_getitimer(td, uap->which, &itv); 606 if (error || uap->itv == NULL) 607 return (error); 608 TV_CP(itv, i32, it_interval); 609 TV_CP(itv, i32, it_value); 610 return (copyout(&i32, uap->itv, sizeof(i32))); 611 } 612 613 int 614 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 615 { 616 struct timeval32 tv32; 617 struct timeval tv, *tvp; 618 int error; 619 620 if (uap->tv != NULL) { 621 error = copyin(uap->tv, &tv32, sizeof(tv32)); 622 if (error) 623 return (error); 624 CP(tv32, tv, tv_sec); 625 CP(tv32, tv, tv_usec); 626 tvp = &tv; 627 } else 628 tvp = NULL; 629 /* 630 * XXX Do pointers need PTRIN()? 631 */ 632 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 633 sizeof(int32_t) * 8)); 634 } 635 636 int 637 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 638 { 639 struct timespec32 ts32; 640 struct timespec ts; 641 struct timeval tv, *tvp; 642 sigset_t set, *uset; 643 int error; 644 645 if (uap->ts != NULL) { 646 error = copyin(uap->ts, &ts32, sizeof(ts32)); 647 if (error != 0) 648 return (error); 649 CP(ts32, ts, tv_sec); 650 CP(ts32, ts, tv_nsec); 651 TIMESPEC_TO_TIMEVAL(&tv, &ts); 652 tvp = &tv; 653 } else 654 tvp = NULL; 655 if (uap->sm != NULL) { 656 error = copyin(uap->sm, &set, sizeof(set)); 657 if (error != 0) 658 return (error); 659 uset = &set; 660 } else 661 uset = NULL; 662 /* 663 * XXX Do pointers need PTRIN()? 664 */ 665 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 666 uset, sizeof(int32_t) * 8); 667 return (error); 668 } 669 670 /* 671 * Copy 'count' items into the destination list pointed to by uap->eventlist. 672 */ 673 static int 674 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 675 { 676 struct freebsd32_kevent_args *uap; 677 struct kevent32 ks32[KQ_NEVENTS]; 678 int i, error = 0; 679 680 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 681 uap = (struct freebsd32_kevent_args *)arg; 682 683 for (i = 0; i < count; i++) { 684 CP(kevp[i], ks32[i], ident); 685 CP(kevp[i], ks32[i], filter); 686 CP(kevp[i], ks32[i], flags); 687 CP(kevp[i], ks32[i], fflags); 688 CP(kevp[i], ks32[i], data); 689 PTROUT_CP(kevp[i], ks32[i], udata); 690 } 691 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 692 if (error == 0) 693 uap->eventlist += count; 694 return (error); 695 } 696 697 /* 698 * Copy 'count' items from the list pointed to by uap->changelist. 699 */ 700 static int 701 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 702 { 703 struct freebsd32_kevent_args *uap; 704 struct kevent32 ks32[KQ_NEVENTS]; 705 int i, error = 0; 706 707 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 708 uap = (struct freebsd32_kevent_args *)arg; 709 710 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 711 if (error) 712 goto done; 713 uap->changelist += count; 714 715 for (i = 0; i < count; i++) { 716 CP(ks32[i], kevp[i], ident); 717 CP(ks32[i], kevp[i], filter); 718 CP(ks32[i], kevp[i], flags); 719 CP(ks32[i], kevp[i], fflags); 720 CP(ks32[i], kevp[i], data); 721 PTRIN_CP(ks32[i], kevp[i], udata); 722 } 723 done: 724 return (error); 725 } 726 727 int 728 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 729 { 730 struct timespec32 ts32; 731 struct timespec ts, *tsp; 732 struct kevent_copyops k_ops = { uap, 733 freebsd32_kevent_copyout, 734 freebsd32_kevent_copyin}; 735 int error; 736 737 738 if (uap->timeout) { 739 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 740 if (error) 741 return (error); 742 CP(ts32, ts, tv_sec); 743 CP(ts32, ts, tv_nsec); 744 tsp = &ts; 745 } else 746 tsp = NULL; 747 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 748 &k_ops, tsp); 749 return (error); 750 } 751 752 int 753 freebsd32_gettimeofday(struct thread *td, 754 struct freebsd32_gettimeofday_args *uap) 755 { 756 struct timeval atv; 757 struct timeval32 atv32; 758 struct timezone rtz; 759 int error = 0; 760 761 if (uap->tp) { 762 microtime(&atv); 763 CP(atv, atv32, tv_sec); 764 CP(atv, atv32, tv_usec); 765 error = copyout(&atv32, uap->tp, sizeof (atv32)); 766 } 767 if (error == 0 && uap->tzp != NULL) { 768 rtz.tz_minuteswest = tz_minuteswest; 769 rtz.tz_dsttime = tz_dsttime; 770 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 771 } 772 return (error); 773 } 774 775 int 776 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 777 { 778 struct rusage32 s32; 779 struct rusage s; 780 int error; 781 782 error = kern_getrusage(td, uap->who, &s); 783 if (error) 784 return (error); 785 if (uap->rusage != NULL) { 786 freebsd32_rusage_out(&s, &s32); 787 error = copyout(&s32, uap->rusage, sizeof(s32)); 788 } 789 return (error); 790 } 791 792 static int 793 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 794 { 795 struct iovec32 iov32; 796 struct iovec *iov; 797 struct uio *uio; 798 u_int iovlen; 799 int error, i; 800 801 *uiop = NULL; 802 if (iovcnt > UIO_MAXIOV) 803 return (EINVAL); 804 iovlen = iovcnt * sizeof(struct iovec); 805 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 806 iov = (struct iovec *)(uio + 1); 807 for (i = 0; i < iovcnt; i++) { 808 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 809 if (error) { 810 free(uio, M_IOV); 811 return (error); 812 } 813 iov[i].iov_base = PTRIN(iov32.iov_base); 814 iov[i].iov_len = iov32.iov_len; 815 } 816 uio->uio_iov = iov; 817 uio->uio_iovcnt = iovcnt; 818 uio->uio_segflg = UIO_USERSPACE; 819 uio->uio_offset = -1; 820 uio->uio_resid = 0; 821 for (i = 0; i < iovcnt; i++) { 822 if (iov->iov_len > INT_MAX - uio->uio_resid) { 823 free(uio, M_IOV); 824 return (EINVAL); 825 } 826 uio->uio_resid += iov->iov_len; 827 iov++; 828 } 829 *uiop = uio; 830 return (0); 831 } 832 833 int 834 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 835 { 836 struct uio *auio; 837 int error; 838 839 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 840 if (error) 841 return (error); 842 error = kern_readv(td, uap->fd, auio); 843 free(auio, M_IOV); 844 return (error); 845 } 846 847 int 848 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 849 { 850 struct uio *auio; 851 int error; 852 853 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 854 if (error) 855 return (error); 856 error = kern_writev(td, uap->fd, auio); 857 free(auio, M_IOV); 858 return (error); 859 } 860 861 int 862 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 863 { 864 struct uio *auio; 865 int error; 866 867 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 868 if (error) 869 return (error); 870 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 871 free(auio, M_IOV); 872 return (error); 873 } 874 875 int 876 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 877 { 878 struct uio *auio; 879 int error; 880 881 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 882 if (error) 883 return (error); 884 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 885 free(auio, M_IOV); 886 return (error); 887 } 888 889 int 890 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 891 int error) 892 { 893 struct iovec32 iov32; 894 struct iovec *iov; 895 u_int iovlen; 896 int i; 897 898 *iovp = NULL; 899 if (iovcnt > UIO_MAXIOV) 900 return (error); 901 iovlen = iovcnt * sizeof(struct iovec); 902 iov = malloc(iovlen, M_IOV, M_WAITOK); 903 for (i = 0; i < iovcnt; i++) { 904 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 905 if (error) { 906 free(iov, M_IOV); 907 return (error); 908 } 909 iov[i].iov_base = PTRIN(iov32.iov_base); 910 iov[i].iov_len = iov32.iov_len; 911 } 912 *iovp = iov; 913 return (0); 914 } 915 916 static int 917 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 918 { 919 struct msghdr32 m32; 920 int error; 921 922 error = copyin(msg32, &m32, sizeof(m32)); 923 if (error) 924 return (error); 925 msg->msg_name = PTRIN(m32.msg_name); 926 msg->msg_namelen = m32.msg_namelen; 927 msg->msg_iov = PTRIN(m32.msg_iov); 928 msg->msg_iovlen = m32.msg_iovlen; 929 msg->msg_control = PTRIN(m32.msg_control); 930 msg->msg_controllen = m32.msg_controllen; 931 msg->msg_flags = m32.msg_flags; 932 return (0); 933 } 934 935 static int 936 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 937 { 938 struct msghdr32 m32; 939 int error; 940 941 m32.msg_name = PTROUT(msg->msg_name); 942 m32.msg_namelen = msg->msg_namelen; 943 m32.msg_iov = PTROUT(msg->msg_iov); 944 m32.msg_iovlen = msg->msg_iovlen; 945 m32.msg_control = PTROUT(msg->msg_control); 946 m32.msg_controllen = msg->msg_controllen; 947 m32.msg_flags = msg->msg_flags; 948 error = copyout(&m32, msg32, sizeof(m32)); 949 return (error); 950 } 951 952 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 953 #define FREEBSD32_ALIGN(p) \ 954 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 955 #define FREEBSD32_CMSG_SPACE(l) \ 956 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 957 958 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 959 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 960 static int 961 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 962 { 963 struct cmsghdr *cm; 964 void *data; 965 socklen_t clen, datalen; 966 int error; 967 caddr_t ctlbuf; 968 int len, maxlen, copylen; 969 struct mbuf *m; 970 error = 0; 971 972 len = msg->msg_controllen; 973 maxlen = msg->msg_controllen; 974 msg->msg_controllen = 0; 975 976 m = control; 977 ctlbuf = msg->msg_control; 978 979 while (m && len > 0) { 980 cm = mtod(m, struct cmsghdr *); 981 clen = m->m_len; 982 983 while (cm != NULL) { 984 985 if (sizeof(struct cmsghdr) > clen || 986 cm->cmsg_len > clen) { 987 error = EINVAL; 988 break; 989 } 990 991 data = CMSG_DATA(cm); 992 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 993 994 /* Adjust message length */ 995 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 996 datalen; 997 998 999 /* Copy cmsghdr */ 1000 copylen = sizeof(struct cmsghdr); 1001 if (len < copylen) { 1002 msg->msg_flags |= MSG_CTRUNC; 1003 copylen = len; 1004 } 1005 1006 error = copyout(cm,ctlbuf,copylen); 1007 if (error) 1008 goto exit; 1009 1010 ctlbuf += FREEBSD32_ALIGN(copylen); 1011 len -= FREEBSD32_ALIGN(copylen); 1012 1013 if (len <= 0) 1014 break; 1015 1016 /* Copy data */ 1017 copylen = datalen; 1018 if (len < copylen) { 1019 msg->msg_flags |= MSG_CTRUNC; 1020 copylen = len; 1021 } 1022 1023 error = copyout(data,ctlbuf,copylen); 1024 if (error) 1025 goto exit; 1026 1027 ctlbuf += FREEBSD32_ALIGN(copylen); 1028 len -= FREEBSD32_ALIGN(copylen); 1029 1030 if (CMSG_SPACE(datalen) < clen) { 1031 clen -= CMSG_SPACE(datalen); 1032 cm = (struct cmsghdr *) 1033 ((caddr_t)cm + CMSG_SPACE(datalen)); 1034 } else { 1035 clen = 0; 1036 cm = NULL; 1037 } 1038 } 1039 m = m->m_next; 1040 } 1041 1042 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 1043 1044 exit: 1045 return (error); 1046 1047 } 1048 1049 int 1050 freebsd32_recvmsg(td, uap) 1051 struct thread *td; 1052 struct freebsd32_recvmsg_args /* { 1053 int s; 1054 struct msghdr32 *msg; 1055 int flags; 1056 } */ *uap; 1057 { 1058 struct msghdr msg; 1059 struct msghdr32 m32; 1060 struct iovec *uiov, *iov; 1061 struct mbuf *control = NULL; 1062 struct mbuf **controlp; 1063 1064 int error; 1065 error = copyin(uap->msg, &m32, sizeof(m32)); 1066 if (error) 1067 return (error); 1068 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1069 if (error) 1070 return (error); 1071 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1072 EMSGSIZE); 1073 if (error) 1074 return (error); 1075 msg.msg_flags = uap->flags; 1076 uiov = msg.msg_iov; 1077 msg.msg_iov = iov; 1078 1079 controlp = (msg.msg_control != NULL) ? &control : NULL; 1080 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1081 if (error == 0) { 1082 msg.msg_iov = uiov; 1083 1084 if (control != NULL) 1085 error = freebsd32_copy_msg_out(&msg, control); 1086 else 1087 msg.msg_controllen = 0; 1088 1089 if (error == 0) 1090 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1091 } 1092 free(iov, M_IOV); 1093 1094 if (control != NULL) 1095 m_freem(control); 1096 1097 return (error); 1098 } 1099 1100 1101 static int 1102 freebsd32_convert_msg_in(struct mbuf **controlp) 1103 { 1104 struct mbuf *control = *controlp; 1105 struct cmsghdr *cm = mtod(control, struct cmsghdr *); 1106 void *data; 1107 socklen_t clen = control->m_len, datalen; 1108 int error; 1109 1110 error = 0; 1111 *controlp = NULL; 1112 1113 while (cm != NULL) { 1114 if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) { 1115 error = EINVAL; 1116 break; 1117 } 1118 1119 data = FREEBSD32_CMSG_DATA(cm); 1120 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1121 1122 *controlp = sbcreatecontrol(data, datalen, cm->cmsg_type, 1123 cm->cmsg_level); 1124 controlp = &(*controlp)->m_next; 1125 1126 if (FREEBSD32_CMSG_SPACE(datalen) < clen) { 1127 clen -= FREEBSD32_CMSG_SPACE(datalen); 1128 cm = (struct cmsghdr *) 1129 ((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen)); 1130 } else { 1131 clen = 0; 1132 cm = NULL; 1133 } 1134 } 1135 1136 m_freem(control); 1137 return (error); 1138 } 1139 1140 1141 int 1142 freebsd32_sendmsg(struct thread *td, 1143 struct freebsd32_sendmsg_args *uap) 1144 { 1145 struct msghdr msg; 1146 struct msghdr32 m32; 1147 struct iovec *iov; 1148 struct mbuf *control = NULL; 1149 struct sockaddr *to = NULL; 1150 int error; 1151 1152 error = copyin(uap->msg, &m32, sizeof(m32)); 1153 if (error) 1154 return (error); 1155 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1156 if (error) 1157 return (error); 1158 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1159 EMSGSIZE); 1160 if (error) 1161 return (error); 1162 msg.msg_iov = iov; 1163 if (msg.msg_name != NULL) { 1164 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1165 if (error) { 1166 to = NULL; 1167 goto out; 1168 } 1169 msg.msg_name = to; 1170 } 1171 1172 if (msg.msg_control) { 1173 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1174 error = EINVAL; 1175 goto out; 1176 } 1177 1178 error = sockargs(&control, msg.msg_control, 1179 msg.msg_controllen, MT_CONTROL); 1180 if (error) 1181 goto out; 1182 1183 error = freebsd32_convert_msg_in(&control); 1184 if (error) 1185 goto out; 1186 } 1187 1188 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1189 UIO_USERSPACE); 1190 1191 out: 1192 free(iov, M_IOV); 1193 if (to) 1194 free(to, M_SONAME); 1195 return (error); 1196 } 1197 1198 int 1199 freebsd32_recvfrom(struct thread *td, 1200 struct freebsd32_recvfrom_args *uap) 1201 { 1202 struct msghdr msg; 1203 struct iovec aiov; 1204 int error; 1205 1206 if (uap->fromlenaddr) { 1207 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1208 sizeof(msg.msg_namelen)); 1209 if (error) 1210 return (error); 1211 } else { 1212 msg.msg_namelen = 0; 1213 } 1214 1215 msg.msg_name = PTRIN(uap->from); 1216 msg.msg_iov = &aiov; 1217 msg.msg_iovlen = 1; 1218 aiov.iov_base = PTRIN(uap->buf); 1219 aiov.iov_len = uap->len; 1220 msg.msg_control = NULL; 1221 msg.msg_flags = uap->flags; 1222 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1223 if (error == 0 && uap->fromlenaddr) 1224 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1225 sizeof (msg.msg_namelen)); 1226 return (error); 1227 } 1228 1229 int 1230 freebsd32_settimeofday(struct thread *td, 1231 struct freebsd32_settimeofday_args *uap) 1232 { 1233 struct timeval32 tv32; 1234 struct timeval tv, *tvp; 1235 struct timezone tz, *tzp; 1236 int error; 1237 1238 if (uap->tv) { 1239 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1240 if (error) 1241 return (error); 1242 CP(tv32, tv, tv_sec); 1243 CP(tv32, tv, tv_usec); 1244 tvp = &tv; 1245 } else 1246 tvp = NULL; 1247 if (uap->tzp) { 1248 error = copyin(uap->tzp, &tz, sizeof(tz)); 1249 if (error) 1250 return (error); 1251 tzp = &tz; 1252 } else 1253 tzp = NULL; 1254 return (kern_settimeofday(td, tvp, tzp)); 1255 } 1256 1257 int 1258 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1259 { 1260 struct timeval32 s32[2]; 1261 struct timeval s[2], *sp; 1262 int error; 1263 1264 if (uap->tptr != NULL) { 1265 error = copyin(uap->tptr, s32, sizeof(s32)); 1266 if (error) 1267 return (error); 1268 CP(s32[0], s[0], tv_sec); 1269 CP(s32[0], s[0], tv_usec); 1270 CP(s32[1], s[1], tv_sec); 1271 CP(s32[1], s[1], tv_usec); 1272 sp = s; 1273 } else 1274 sp = NULL; 1275 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1276 } 1277 1278 int 1279 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1280 { 1281 struct timeval32 s32[2]; 1282 struct timeval s[2], *sp; 1283 int error; 1284 1285 if (uap->tptr != NULL) { 1286 error = copyin(uap->tptr, s32, sizeof(s32)); 1287 if (error) 1288 return (error); 1289 CP(s32[0], s[0], tv_sec); 1290 CP(s32[0], s[0], tv_usec); 1291 CP(s32[1], s[1], tv_sec); 1292 CP(s32[1], s[1], tv_usec); 1293 sp = s; 1294 } else 1295 sp = NULL; 1296 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1297 } 1298 1299 int 1300 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1301 { 1302 struct timeval32 s32[2]; 1303 struct timeval s[2], *sp; 1304 int error; 1305 1306 if (uap->tptr != NULL) { 1307 error = copyin(uap->tptr, s32, sizeof(s32)); 1308 if (error) 1309 return (error); 1310 CP(s32[0], s[0], tv_sec); 1311 CP(s32[0], s[0], tv_usec); 1312 CP(s32[1], s[1], tv_sec); 1313 CP(s32[1], s[1], tv_usec); 1314 sp = s; 1315 } else 1316 sp = NULL; 1317 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1318 } 1319 1320 int 1321 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1322 { 1323 struct timeval32 s32[2]; 1324 struct timeval s[2], *sp; 1325 int error; 1326 1327 if (uap->times != NULL) { 1328 error = copyin(uap->times, s32, sizeof(s32)); 1329 if (error) 1330 return (error); 1331 CP(s32[0], s[0], tv_sec); 1332 CP(s32[0], s[0], tv_usec); 1333 CP(s32[1], s[1], tv_sec); 1334 CP(s32[1], s[1], tv_usec); 1335 sp = s; 1336 } else 1337 sp = NULL; 1338 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1339 sp, UIO_SYSSPACE)); 1340 } 1341 1342 int 1343 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1344 { 1345 struct timeval32 tv32; 1346 struct timeval delta, olddelta, *deltap; 1347 int error; 1348 1349 if (uap->delta) { 1350 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1351 if (error) 1352 return (error); 1353 CP(tv32, delta, tv_sec); 1354 CP(tv32, delta, tv_usec); 1355 deltap = δ 1356 } else 1357 deltap = NULL; 1358 error = kern_adjtime(td, deltap, &olddelta); 1359 if (uap->olddelta && error == 0) { 1360 CP(olddelta, tv32, tv_sec); 1361 CP(olddelta, tv32, tv_usec); 1362 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1363 } 1364 return (error); 1365 } 1366 1367 #ifdef COMPAT_FREEBSD4 1368 int 1369 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1370 { 1371 struct statfs32 s32; 1372 struct statfs s; 1373 int error; 1374 1375 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1376 if (error) 1377 return (error); 1378 copy_statfs(&s, &s32); 1379 return (copyout(&s32, uap->buf, sizeof(s32))); 1380 } 1381 #endif 1382 1383 #ifdef COMPAT_FREEBSD4 1384 int 1385 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1386 { 1387 struct statfs32 s32; 1388 struct statfs s; 1389 int error; 1390 1391 error = kern_fstatfs(td, uap->fd, &s); 1392 if (error) 1393 return (error); 1394 copy_statfs(&s, &s32); 1395 return (copyout(&s32, uap->buf, sizeof(s32))); 1396 } 1397 #endif 1398 1399 #ifdef COMPAT_FREEBSD4 1400 int 1401 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1402 { 1403 struct statfs32 s32; 1404 struct statfs s; 1405 fhandle_t fh; 1406 int error; 1407 1408 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1409 return (error); 1410 error = kern_fhstatfs(td, fh, &s); 1411 if (error) 1412 return (error); 1413 copy_statfs(&s, &s32); 1414 return (copyout(&s32, uap->buf, sizeof(s32))); 1415 } 1416 #endif 1417 1418 int 1419 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1420 { 1421 struct pread_args ap; 1422 1423 ap.fd = uap->fd; 1424 ap.buf = uap->buf; 1425 ap.nbyte = uap->nbyte; 1426 ap.offset = PAIR32TO64(off_t,uap->offset); 1427 return (pread(td, &ap)); 1428 } 1429 1430 int 1431 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1432 { 1433 struct pwrite_args ap; 1434 1435 ap.fd = uap->fd; 1436 ap.buf = uap->buf; 1437 ap.nbyte = uap->nbyte; 1438 ap.offset = PAIR32TO64(off_t,uap->offset); 1439 return (pwrite(td, &ap)); 1440 } 1441 1442 int 1443 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1444 { 1445 int error; 1446 struct lseek_args ap; 1447 off_t pos; 1448 1449 ap.fd = uap->fd; 1450 ap.offset = PAIR32TO64(off_t,uap->offset); 1451 ap.whence = uap->whence; 1452 error = lseek(td, &ap); 1453 /* Expand the quad return into two parts for eax and edx */ 1454 pos = *(off_t *)(td->td_retval); 1455 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1456 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1457 return error; 1458 } 1459 1460 int 1461 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1462 { 1463 struct truncate_args ap; 1464 1465 ap.path = uap->path; 1466 ap.length = PAIR32TO64(off_t,uap->length); 1467 return (truncate(td, &ap)); 1468 } 1469 1470 int 1471 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1472 { 1473 struct ftruncate_args ap; 1474 1475 ap.fd = uap->fd; 1476 ap.length = PAIR32TO64(off_t,uap->length); 1477 return (ftruncate(td, &ap)); 1478 } 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_atimespec); 1654 TS_CP(*in, *out, st_mtimespec); 1655 TS_CP(*in, *out, st_ctimespec); 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_birthtimespec); 1662 } 1663 1664 int 1665 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1666 { 1667 struct stat sb; 1668 struct stat32 sb32; 1669 int error; 1670 1671 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1672 if (error) 1673 return (error); 1674 copy_stat(&sb, &sb32); 1675 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1676 return (error); 1677 } 1678 1679 int 1680 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1681 { 1682 struct stat ub; 1683 struct stat32 ub32; 1684 int error; 1685 1686 error = kern_fstat(td, uap->fd, &ub); 1687 if (error) 1688 return (error); 1689 copy_stat(&ub, &ub32); 1690 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1691 return (error); 1692 } 1693 1694 int 1695 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1696 { 1697 struct stat ub; 1698 struct stat32 ub32; 1699 int error; 1700 1701 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1702 if (error) 1703 return (error); 1704 copy_stat(&ub, &ub32); 1705 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1706 return (error); 1707 } 1708 1709 int 1710 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1711 { 1712 struct stat sb; 1713 struct stat32 sb32; 1714 int error; 1715 1716 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1717 if (error) 1718 return (error); 1719 copy_stat(&sb, &sb32); 1720 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1721 return (error); 1722 } 1723 1724 /* 1725 * MPSAFE 1726 */ 1727 int 1728 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1729 { 1730 int error, name[CTL_MAXNAME]; 1731 size_t j, oldlen; 1732 1733 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1734 return (EINVAL); 1735 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1736 if (error) 1737 return (error); 1738 if (uap->oldlenp) 1739 oldlen = fuword32(uap->oldlenp); 1740 else 1741 oldlen = 0; 1742 error = userland_sysctl(td, name, uap->namelen, 1743 uap->old, &oldlen, 1, 1744 uap->new, uap->newlen, &j, SCTL_MASK32); 1745 if (error && error != ENOMEM) 1746 return (error); 1747 if (uap->oldlenp) 1748 suword32(uap->oldlenp, j); 1749 return (0); 1750 } 1751 1752 int 1753 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1754 { 1755 uint32_t version; 1756 int error; 1757 struct jail j; 1758 1759 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1760 if (error) 1761 return (error); 1762 1763 switch (version) { 1764 case 0: 1765 { 1766 /* FreeBSD single IPv4 jails. */ 1767 struct jail32_v0 j32_v0; 1768 1769 bzero(&j, sizeof(struct jail)); 1770 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1771 if (error) 1772 return (error); 1773 CP(j32_v0, j, version); 1774 PTRIN_CP(j32_v0, j, path); 1775 PTRIN_CP(j32_v0, j, hostname); 1776 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1777 break; 1778 } 1779 1780 case 1: 1781 /* 1782 * Version 1 was used by multi-IPv4 jail implementations 1783 * that never made it into the official kernel. 1784 */ 1785 return (EINVAL); 1786 1787 case 2: /* JAIL_API_VERSION */ 1788 { 1789 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1790 struct jail32 j32; 1791 1792 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1793 if (error) 1794 return (error); 1795 CP(j32, j, version); 1796 PTRIN_CP(j32, j, path); 1797 PTRIN_CP(j32, j, hostname); 1798 PTRIN_CP(j32, j, jailname); 1799 CP(j32, j, ip4s); 1800 CP(j32, j, ip6s); 1801 PTRIN_CP(j32, j, ip4); 1802 PTRIN_CP(j32, j, ip6); 1803 break; 1804 } 1805 1806 default: 1807 /* Sci-Fi jails are not supported, sorry. */ 1808 return (EINVAL); 1809 } 1810 return (kern_jail(td, &j)); 1811 } 1812 1813 int 1814 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1815 { 1816 struct uio *auio; 1817 int error; 1818 1819 /* Check that we have an even number of iovecs. */ 1820 if (uap->iovcnt & 1) 1821 return (EINVAL); 1822 1823 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1824 if (error) 1825 return (error); 1826 error = kern_jail_set(td, auio, uap->flags); 1827 free(auio, M_IOV); 1828 return (error); 1829 } 1830 1831 int 1832 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1833 { 1834 struct iovec32 iov32; 1835 struct uio *auio; 1836 int error, i; 1837 1838 /* Check that we have an even number of iovecs. */ 1839 if (uap->iovcnt & 1) 1840 return (EINVAL); 1841 1842 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1843 if (error) 1844 return (error); 1845 error = kern_jail_get(td, auio, uap->flags); 1846 if (error == 0) 1847 for (i = 0; i < uap->iovcnt; i++) { 1848 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1849 CP(auio->uio_iov[i], iov32, iov_len); 1850 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1851 if (error != 0) 1852 break; 1853 } 1854 free(auio, M_IOV); 1855 return (error); 1856 } 1857 1858 int 1859 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1860 { 1861 struct sigaction32 s32; 1862 struct sigaction sa, osa, *sap; 1863 int error; 1864 1865 if (uap->act) { 1866 error = copyin(uap->act, &s32, sizeof(s32)); 1867 if (error) 1868 return (error); 1869 sa.sa_handler = PTRIN(s32.sa_u); 1870 CP(s32, sa, sa_flags); 1871 CP(s32, sa, sa_mask); 1872 sap = &sa; 1873 } else 1874 sap = NULL; 1875 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 1876 if (error == 0 && uap->oact != NULL) { 1877 s32.sa_u = PTROUT(osa.sa_handler); 1878 CP(osa, s32, sa_flags); 1879 CP(osa, s32, sa_mask); 1880 error = copyout(&s32, uap->oact, sizeof(s32)); 1881 } 1882 return (error); 1883 } 1884 1885 #ifdef COMPAT_FREEBSD4 1886 int 1887 freebsd4_freebsd32_sigaction(struct thread *td, 1888 struct freebsd4_freebsd32_sigaction_args *uap) 1889 { 1890 struct sigaction32 s32; 1891 struct sigaction sa, osa, *sap; 1892 int error; 1893 1894 if (uap->act) { 1895 error = copyin(uap->act, &s32, sizeof(s32)); 1896 if (error) 1897 return (error); 1898 sa.sa_handler = PTRIN(s32.sa_u); 1899 CP(s32, sa, sa_flags); 1900 CP(s32, sa, sa_mask); 1901 sap = &sa; 1902 } else 1903 sap = NULL; 1904 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 1905 if (error == 0 && uap->oact != NULL) { 1906 s32.sa_u = PTROUT(osa.sa_handler); 1907 CP(osa, s32, sa_flags); 1908 CP(osa, s32, sa_mask); 1909 error = copyout(&s32, uap->oact, sizeof(s32)); 1910 } 1911 return (error); 1912 } 1913 #endif 1914 1915 #ifdef COMPAT_43 1916 struct osigaction32 { 1917 u_int32_t sa_u; 1918 osigset_t sa_mask; 1919 int sa_flags; 1920 }; 1921 1922 #define ONSIG 32 1923 1924 int 1925 ofreebsd32_sigaction(struct thread *td, 1926 struct ofreebsd32_sigaction_args *uap) 1927 { 1928 struct osigaction32 s32; 1929 struct sigaction sa, osa, *sap; 1930 int error; 1931 1932 if (uap->signum <= 0 || uap->signum >= ONSIG) 1933 return (EINVAL); 1934 1935 if (uap->nsa) { 1936 error = copyin(uap->nsa, &s32, sizeof(s32)); 1937 if (error) 1938 return (error); 1939 sa.sa_handler = PTRIN(s32.sa_u); 1940 CP(s32, sa, sa_flags); 1941 OSIG2SIG(s32.sa_mask, sa.sa_mask); 1942 sap = &sa; 1943 } else 1944 sap = NULL; 1945 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 1946 if (error == 0 && uap->osa != NULL) { 1947 s32.sa_u = PTROUT(osa.sa_handler); 1948 CP(osa, s32, sa_flags); 1949 SIG2OSIG(osa.sa_mask, s32.sa_mask); 1950 error = copyout(&s32, uap->osa, sizeof(s32)); 1951 } 1952 return (error); 1953 } 1954 1955 int 1956 ofreebsd32_sigprocmask(struct thread *td, 1957 struct ofreebsd32_sigprocmask_args *uap) 1958 { 1959 sigset_t set, oset; 1960 int error; 1961 1962 OSIG2SIG(uap->mask, set); 1963 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 1964 SIG2OSIG(oset, td->td_retval[0]); 1965 return (error); 1966 } 1967 1968 int 1969 ofreebsd32_sigpending(struct thread *td, 1970 struct ofreebsd32_sigpending_args *uap) 1971 { 1972 struct proc *p = td->td_proc; 1973 sigset_t siglist; 1974 1975 PROC_LOCK(p); 1976 siglist = p->p_siglist; 1977 SIGSETOR(siglist, td->td_siglist); 1978 PROC_UNLOCK(p); 1979 SIG2OSIG(siglist, td->td_retval[0]); 1980 return (0); 1981 } 1982 1983 struct sigvec32 { 1984 u_int32_t sv_handler; 1985 int sv_mask; 1986 int sv_flags; 1987 }; 1988 1989 int 1990 ofreebsd32_sigvec(struct thread *td, 1991 struct ofreebsd32_sigvec_args *uap) 1992 { 1993 struct sigvec32 vec; 1994 struct sigaction sa, osa, *sap; 1995 int error; 1996 1997 if (uap->signum <= 0 || uap->signum >= ONSIG) 1998 return (EINVAL); 1999 2000 if (uap->nsv) { 2001 error = copyin(uap->nsv, &vec, sizeof(vec)); 2002 if (error) 2003 return (error); 2004 sa.sa_handler = PTRIN(vec.sv_handler); 2005 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2006 sa.sa_flags = vec.sv_flags; 2007 sa.sa_flags ^= SA_RESTART; 2008 sap = &sa; 2009 } else 2010 sap = NULL; 2011 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2012 if (error == 0 && uap->osv != NULL) { 2013 vec.sv_handler = PTROUT(osa.sa_handler); 2014 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2015 vec.sv_flags = osa.sa_flags; 2016 vec.sv_flags &= ~SA_NOCLDWAIT; 2017 vec.sv_flags ^= SA_RESTART; 2018 error = copyout(&vec, uap->osv, sizeof(vec)); 2019 } 2020 return (error); 2021 } 2022 2023 int 2024 ofreebsd32_sigblock(struct thread *td, 2025 struct ofreebsd32_sigblock_args *uap) 2026 { 2027 sigset_t set, oset; 2028 2029 OSIG2SIG(uap->mask, set); 2030 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2031 SIG2OSIG(oset, td->td_retval[0]); 2032 return (0); 2033 } 2034 2035 int 2036 ofreebsd32_sigsetmask(struct thread *td, 2037 struct ofreebsd32_sigsetmask_args *uap) 2038 { 2039 sigset_t set, oset; 2040 2041 OSIG2SIG(uap->mask, set); 2042 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2043 SIG2OSIG(oset, td->td_retval[0]); 2044 return (0); 2045 } 2046 2047 int 2048 ofreebsd32_sigsuspend(struct thread *td, 2049 struct ofreebsd32_sigsuspend_args *uap) 2050 { 2051 sigset_t mask; 2052 2053 OSIG2SIG(uap->mask, mask); 2054 return (kern_sigsuspend(td, mask)); 2055 } 2056 2057 struct sigstack32 { 2058 u_int32_t ss_sp; 2059 int ss_onstack; 2060 }; 2061 2062 int 2063 ofreebsd32_sigstack(struct thread *td, 2064 struct ofreebsd32_sigstack_args *uap) 2065 { 2066 struct sigstack32 s32; 2067 struct sigstack nss, oss; 2068 int error = 0, unss; 2069 2070 if (uap->nss != NULL) { 2071 error = copyin(uap->nss, &s32, sizeof(s32)); 2072 if (error) 2073 return (error); 2074 nss.ss_sp = PTRIN(s32.ss_sp); 2075 CP(s32, nss, ss_onstack); 2076 unss = 1; 2077 } else { 2078 unss = 0; 2079 } 2080 oss.ss_sp = td->td_sigstk.ss_sp; 2081 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2082 if (unss) { 2083 td->td_sigstk.ss_sp = nss.ss_sp; 2084 td->td_sigstk.ss_size = 0; 2085 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2086 td->td_pflags |= TDP_ALTSTACK; 2087 } 2088 if (uap->oss != NULL) { 2089 s32.ss_sp = PTROUT(oss.ss_sp); 2090 CP(oss, s32, ss_onstack); 2091 error = copyout(&s32, uap->oss, sizeof(s32)); 2092 } 2093 return (error); 2094 } 2095 #endif 2096 2097 int 2098 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2099 { 2100 struct timespec32 rmt32, rqt32; 2101 struct timespec rmt, rqt; 2102 int error; 2103 2104 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2105 if (error) 2106 return (error); 2107 2108 CP(rqt32, rqt, tv_sec); 2109 CP(rqt32, rqt, tv_nsec); 2110 2111 if (uap->rmtp && 2112 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2113 return (EFAULT); 2114 error = kern_nanosleep(td, &rqt, &rmt); 2115 if (error && uap->rmtp) { 2116 int error2; 2117 2118 CP(rmt, rmt32, tv_sec); 2119 CP(rmt, rmt32, tv_nsec); 2120 2121 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2122 if (error2) 2123 error = error2; 2124 } 2125 return (error); 2126 } 2127 2128 int 2129 freebsd32_clock_gettime(struct thread *td, 2130 struct freebsd32_clock_gettime_args *uap) 2131 { 2132 struct timespec ats; 2133 struct timespec32 ats32; 2134 int error; 2135 2136 error = kern_clock_gettime(td, uap->clock_id, &ats); 2137 if (error == 0) { 2138 CP(ats, ats32, tv_sec); 2139 CP(ats, ats32, tv_nsec); 2140 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2141 } 2142 return (error); 2143 } 2144 2145 int 2146 freebsd32_clock_settime(struct thread *td, 2147 struct freebsd32_clock_settime_args *uap) 2148 { 2149 struct timespec ats; 2150 struct timespec32 ats32; 2151 int error; 2152 2153 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2154 if (error) 2155 return (error); 2156 CP(ats32, ats, tv_sec); 2157 CP(ats32, ats, tv_nsec); 2158 2159 return (kern_clock_settime(td, uap->clock_id, &ats)); 2160 } 2161 2162 int 2163 freebsd32_clock_getres(struct thread *td, 2164 struct freebsd32_clock_getres_args *uap) 2165 { 2166 struct timespec ts; 2167 struct timespec32 ts32; 2168 int error; 2169 2170 if (uap->tp == NULL) 2171 return (0); 2172 error = kern_clock_getres(td, uap->clock_id, &ts); 2173 if (error == 0) { 2174 CP(ts, ts32, tv_sec); 2175 CP(ts, ts32, tv_nsec); 2176 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2177 } 2178 return (error); 2179 } 2180 2181 int 2182 freebsd32_thr_new(struct thread *td, 2183 struct freebsd32_thr_new_args *uap) 2184 { 2185 struct thr_param32 param32; 2186 struct thr_param param; 2187 int error; 2188 2189 if (uap->param_size < 0 || 2190 uap->param_size > sizeof(struct thr_param32)) 2191 return (EINVAL); 2192 bzero(¶m, sizeof(struct thr_param)); 2193 bzero(¶m32, sizeof(struct thr_param32)); 2194 error = copyin(uap->param, ¶m32, uap->param_size); 2195 if (error != 0) 2196 return (error); 2197 param.start_func = PTRIN(param32.start_func); 2198 param.arg = PTRIN(param32.arg); 2199 param.stack_base = PTRIN(param32.stack_base); 2200 param.stack_size = param32.stack_size; 2201 param.tls_base = PTRIN(param32.tls_base); 2202 param.tls_size = param32.tls_size; 2203 param.child_tid = PTRIN(param32.child_tid); 2204 param.parent_tid = PTRIN(param32.parent_tid); 2205 param.flags = param32.flags; 2206 param.rtp = PTRIN(param32.rtp); 2207 param.spare[0] = PTRIN(param32.spare[0]); 2208 param.spare[1] = PTRIN(param32.spare[1]); 2209 param.spare[2] = PTRIN(param32.spare[2]); 2210 2211 return (kern_thr_new(td, ¶m)); 2212 } 2213 2214 int 2215 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2216 { 2217 struct timespec32 ts32; 2218 struct timespec ts, *tsp; 2219 int error; 2220 2221 error = 0; 2222 tsp = NULL; 2223 if (uap->timeout != NULL) { 2224 error = copyin((const void *)uap->timeout, (void *)&ts32, 2225 sizeof(struct timespec32)); 2226 if (error != 0) 2227 return (error); 2228 ts.tv_sec = ts32.tv_sec; 2229 ts.tv_nsec = ts32.tv_nsec; 2230 tsp = &ts; 2231 } 2232 return (kern_thr_suspend(td, tsp)); 2233 } 2234 2235 void 2236 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2237 { 2238 bzero(dst, sizeof(*dst)); 2239 dst->si_signo = src->si_signo; 2240 dst->si_errno = src->si_errno; 2241 dst->si_code = src->si_code; 2242 dst->si_pid = src->si_pid; 2243 dst->si_uid = src->si_uid; 2244 dst->si_status = src->si_status; 2245 dst->si_addr = (uintptr_t)src->si_addr; 2246 dst->si_value.sigval_int = src->si_value.sival_int; 2247 dst->si_timerid = src->si_timerid; 2248 dst->si_overrun = src->si_overrun; 2249 } 2250 2251 int 2252 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2253 { 2254 struct timespec32 ts32; 2255 struct timespec ts; 2256 struct timespec *timeout; 2257 sigset_t set; 2258 ksiginfo_t ksi; 2259 struct siginfo32 si32; 2260 int error; 2261 2262 if (uap->timeout) { 2263 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2264 if (error) 2265 return (error); 2266 ts.tv_sec = ts32.tv_sec; 2267 ts.tv_nsec = ts32.tv_nsec; 2268 timeout = &ts; 2269 } else 2270 timeout = NULL; 2271 2272 error = copyin(uap->set, &set, sizeof(set)); 2273 if (error) 2274 return (error); 2275 2276 error = kern_sigtimedwait(td, set, &ksi, timeout); 2277 if (error) 2278 return (error); 2279 2280 if (uap->info) { 2281 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2282 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2283 } 2284 2285 if (error == 0) 2286 td->td_retval[0] = ksi.ksi_signo; 2287 return (error); 2288 } 2289 2290 /* 2291 * MPSAFE 2292 */ 2293 int 2294 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2295 { 2296 ksiginfo_t ksi; 2297 struct siginfo32 si32; 2298 sigset_t set; 2299 int error; 2300 2301 error = copyin(uap->set, &set, sizeof(set)); 2302 if (error) 2303 return (error); 2304 2305 error = kern_sigtimedwait(td, set, &ksi, NULL); 2306 if (error) 2307 return (error); 2308 2309 if (uap->info) { 2310 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2311 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2312 } 2313 if (error == 0) 2314 td->td_retval[0] = ksi.ksi_signo; 2315 return (error); 2316 } 2317 2318 int 2319 freebsd32_cpuset_setid(struct thread *td, 2320 struct freebsd32_cpuset_setid_args *uap) 2321 { 2322 struct cpuset_setid_args ap; 2323 2324 ap.which = uap->which; 2325 ap.id = PAIR32TO64(id_t,uap->id); 2326 ap.setid = uap->setid; 2327 2328 return (cpuset_setid(td, &ap)); 2329 } 2330 2331 int 2332 freebsd32_cpuset_getid(struct thread *td, 2333 struct freebsd32_cpuset_getid_args *uap) 2334 { 2335 struct cpuset_getid_args ap; 2336 2337 ap.level = uap->level; 2338 ap.which = uap->which; 2339 ap.id = PAIR32TO64(id_t,uap->id); 2340 ap.setid = uap->setid; 2341 2342 return (cpuset_getid(td, &ap)); 2343 } 2344 2345 int 2346 freebsd32_cpuset_getaffinity(struct thread *td, 2347 struct freebsd32_cpuset_getaffinity_args *uap) 2348 { 2349 struct cpuset_getaffinity_args ap; 2350 2351 ap.level = uap->level; 2352 ap.which = uap->which; 2353 ap.id = PAIR32TO64(id_t,uap->id); 2354 ap.cpusetsize = uap->cpusetsize; 2355 ap.mask = uap->mask; 2356 2357 return (cpuset_getaffinity(td, &ap)); 2358 } 2359 2360 int 2361 freebsd32_cpuset_setaffinity(struct thread *td, 2362 struct freebsd32_cpuset_setaffinity_args *uap) 2363 { 2364 struct cpuset_setaffinity_args ap; 2365 2366 ap.level = uap->level; 2367 ap.which = uap->which; 2368 ap.id = PAIR32TO64(id_t,uap->id); 2369 ap.cpusetsize = uap->cpusetsize; 2370 ap.mask = uap->mask; 2371 2372 return (cpuset_setaffinity(td, &ap)); 2373 } 2374 2375 int 2376 freebsd32_nmount(struct thread *td, 2377 struct freebsd32_nmount_args /* { 2378 struct iovec *iovp; 2379 unsigned int iovcnt; 2380 int flags; 2381 } */ *uap) 2382 { 2383 struct uio *auio; 2384 int error; 2385 2386 AUDIT_ARG_FFLAGS(uap->flags); 2387 2388 /* 2389 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2390 * userspace to set this flag, but we must filter it out if we want 2391 * MNT_UPDATE on the root file system to work. 2392 * MNT_ROOTFS should only be set in the kernel in vfs_mountroot_try(). 2393 */ 2394 uap->flags &= ~MNT_ROOTFS; 2395 2396 /* 2397 * check that we have an even number of iovec's 2398 * and that we have at least two options. 2399 */ 2400 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2401 return (EINVAL); 2402 2403 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2404 if (error) 2405 return (error); 2406 error = vfs_donmount(td, uap->flags, auio); 2407 2408 free(auio, M_IOV); 2409 return error; 2410 } 2411 2412 #if 0 2413 int 2414 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2415 { 2416 struct yyy32 *p32, s32; 2417 struct yyy *p = NULL, s; 2418 struct xxx_arg ap; 2419 int error; 2420 2421 if (uap->zzz) { 2422 error = copyin(uap->zzz, &s32, sizeof(s32)); 2423 if (error) 2424 return (error); 2425 /* translate in */ 2426 p = &s; 2427 } 2428 error = kern_xxx(td, p); 2429 if (error) 2430 return (error); 2431 if (uap->zzz) { 2432 /* translate out */ 2433 error = copyout(&s32, p32, sizeof(s32)); 2434 } 2435 return (error); 2436 } 2437 #endif 2438 2439 int 2440 syscall32_register(int *offset, struct sysent *new_sysent, 2441 struct sysent *old_sysent) 2442 { 2443 if (*offset == NO_SYSCALL) { 2444 int i; 2445 2446 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2447 if (freebsd32_sysent[i].sy_call == 2448 (sy_call_t *)lkmnosys) 2449 break; 2450 if (i == SYS_MAXSYSCALL) 2451 return (ENFILE); 2452 *offset = i; 2453 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2454 return (EINVAL); 2455 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2456 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2457 return (EEXIST); 2458 2459 *old_sysent = freebsd32_sysent[*offset]; 2460 freebsd32_sysent[*offset] = *new_sysent; 2461 return 0; 2462 } 2463 2464 int 2465 syscall32_deregister(int *offset, struct sysent *old_sysent) 2466 { 2467 2468 if (*offset) 2469 freebsd32_sysent[*offset] = *old_sysent; 2470 return 0; 2471 } 2472 2473 int 2474 syscall32_module_handler(struct module *mod, int what, void *arg) 2475 { 2476 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2477 modspecific_t ms; 2478 int error; 2479 2480 switch (what) { 2481 case MOD_LOAD: 2482 error = syscall32_register(data->offset, data->new_sysent, 2483 &data->old_sysent); 2484 if (error) { 2485 /* Leave a mark so we know to safely unload below. */ 2486 data->offset = NULL; 2487 return error; 2488 } 2489 ms.intval = *data->offset; 2490 MOD_XLOCK; 2491 module_setspecific(mod, &ms); 2492 MOD_XUNLOCK; 2493 if (data->chainevh) 2494 error = data->chainevh(mod, what, data->chainarg); 2495 return (error); 2496 case MOD_UNLOAD: 2497 /* 2498 * MOD_LOAD failed, so just return without calling the 2499 * chained handler since we didn't pass along the MOD_LOAD 2500 * event. 2501 */ 2502 if (data->offset == NULL) 2503 return (0); 2504 if (data->chainevh) { 2505 error = data->chainevh(mod, what, data->chainarg); 2506 if (error) 2507 return (error); 2508 } 2509 error = syscall32_deregister(data->offset, &data->old_sysent); 2510 return (error); 2511 default: 2512 error = EOPNOTSUPP; 2513 if (data->chainevh) 2514 error = data->chainevh(mod, what, data->chainarg); 2515 return (error); 2516 } 2517 } 2518 2519 int 2520 syscall32_helper_register(struct syscall_helper_data *sd) 2521 { 2522 struct syscall_helper_data *sd1; 2523 int error; 2524 2525 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2526 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2527 &sd1->old_sysent); 2528 if (error != 0) { 2529 syscall32_helper_unregister(sd); 2530 return (error); 2531 } 2532 sd1->registered = 1; 2533 } 2534 return (0); 2535 } 2536 2537 int 2538 syscall32_helper_unregister(struct syscall_helper_data *sd) 2539 { 2540 struct syscall_helper_data *sd1; 2541 2542 for (sd1 = sd; sd1->registered != 0; sd1++) { 2543 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2544 sd1->registered = 0; 2545 } 2546 return (0); 2547 } 2548 2549 register_t * 2550 freebsd32_copyout_strings(struct image_params *imgp) 2551 { 2552 int argc, envc; 2553 u_int32_t *vectp; 2554 char *stringp, *destp; 2555 u_int32_t *stack_base; 2556 struct freebsd32_ps_strings *arginfo; 2557 size_t execpath_len; 2558 int szsigcode; 2559 2560 /* 2561 * Calculate string base and vector table pointers. 2562 * Also deal with signal trampoline code for this exec type. 2563 */ 2564 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2565 execpath_len = strlen(imgp->execpath) + 1; 2566 else 2567 execpath_len = 0; 2568 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2569 sv_psstrings; 2570 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2571 destp = (caddr_t)arginfo - szsigcode - SPARE_USRSPACE - 2572 roundup(execpath_len, sizeof(char *)) - 2573 roundup((ARG_MAX - imgp->args->stringspace), sizeof(char *)); 2574 2575 /* 2576 * install sigcode 2577 */ 2578 if (szsigcode) 2579 copyout(imgp->proc->p_sysent->sv_sigcode, 2580 ((caddr_t)arginfo - szsigcode), szsigcode); 2581 2582 /* 2583 * Copy the image path for the rtld. 2584 */ 2585 if (execpath_len != 0) { 2586 imgp->execpathp = (uintptr_t)arginfo - szsigcode - execpath_len; 2587 copyout(imgp->execpath, (void *)imgp->execpathp, 2588 execpath_len); 2589 } 2590 2591 /* 2592 * If we have a valid auxargs ptr, prepare some room 2593 * on the stack. 2594 */ 2595 if (imgp->auxargs) { 2596 /* 2597 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2598 * lower compatibility. 2599 */ 2600 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2601 : (AT_COUNT * 2); 2602 /* 2603 * The '+ 2' is for the null pointers at the end of each of 2604 * the arg and env vector sets,and imgp->auxarg_size is room 2605 * for argument of Runtime loader. 2606 */ 2607 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2608 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2609 sizeof(u_int32_t)); 2610 } else 2611 /* 2612 * The '+ 2' is for the null pointers at the end of each of 2613 * the arg and env vector sets 2614 */ 2615 vectp = (u_int32_t *) 2616 (destp - (imgp->args->argc + imgp->args->envc + 2) * sizeof(u_int32_t)); 2617 2618 /* 2619 * vectp also becomes our initial stack base 2620 */ 2621 stack_base = vectp; 2622 2623 stringp = imgp->args->begin_argv; 2624 argc = imgp->args->argc; 2625 envc = imgp->args->envc; 2626 /* 2627 * Copy out strings - arguments and environment. 2628 */ 2629 copyout(stringp, destp, ARG_MAX - imgp->args->stringspace); 2630 2631 /* 2632 * Fill in "ps_strings" struct for ps, w, etc. 2633 */ 2634 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2635 suword32(&arginfo->ps_nargvstr, argc); 2636 2637 /* 2638 * Fill in argument portion of vector table. 2639 */ 2640 for (; argc > 0; --argc) { 2641 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2642 while (*stringp++ != 0) 2643 destp++; 2644 destp++; 2645 } 2646 2647 /* a null vector table pointer separates the argp's from the envp's */ 2648 suword32(vectp++, 0); 2649 2650 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2651 suword32(&arginfo->ps_nenvstr, envc); 2652 2653 /* 2654 * Fill in environment portion of vector table. 2655 */ 2656 for (; envc > 0; --envc) { 2657 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2658 while (*stringp++ != 0) 2659 destp++; 2660 destp++; 2661 } 2662 2663 /* end of vector table is a null pointer */ 2664 suword32(vectp, 0); 2665 2666 return ((register_t *)stack_base); 2667 } 2668 2669 int 2670 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2671 { 2672 struct kld_file_stat stat; 2673 struct kld32_file_stat stat32; 2674 int error, version; 2675 2676 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2677 != 0) 2678 return (error); 2679 if (version != sizeof(struct kld32_file_stat_1) && 2680 version != sizeof(struct kld32_file_stat)) 2681 return (EINVAL); 2682 2683 error = kern_kldstat(td, uap->fileid, &stat); 2684 if (error != 0) 2685 return (error); 2686 2687 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name)); 2688 CP(stat, stat32, refs); 2689 CP(stat, stat32, id); 2690 PTROUT_CP(stat, stat32, address); 2691 CP(stat, stat32, size); 2692 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname)); 2693 return (copyout(&stat32, uap->stat, version)); 2694 } 2695 2696 int 2697 freebsd32_posix_fallocate(struct thread *td, 2698 struct freebsd32_posix_fallocate_args *uap) 2699 { 2700 2701 return (kern_posix_fallocate(td, uap->fd, 2702 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len))); 2703 } 2704 2705 int 2706 freebsd32_posix_fadvise(struct thread *td, 2707 struct freebsd32_posix_fadvise_args *uap) 2708 { 2709 2710 return (kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset), 2711 PAIR32TO64(off_t, uap->len), uap->advice)); 2712 }
Cache object: c556f44c3f3b9b5bbce8cf117d06ef81
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