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/procctl.h> 59 #include <sys/reboot.h> 60 #include <sys/resource.h> 61 #include <sys/resourcevar.h> 62 #include <sys/selinfo.h> 63 #include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 64 #include <sys/pipe.h> /* Must come after sys/selinfo.h */ 65 #include <sys/signal.h> 66 #include <sys/signalvar.h> 67 #include <sys/socket.h> 68 #include <sys/socketvar.h> 69 #include <sys/stat.h> 70 #include <sys/syscall.h> 71 #include <sys/syscallsubr.h> 72 #include <sys/sysctl.h> 73 #include <sys/sysent.h> 74 #include <sys/sysproto.h> 75 #include <sys/systm.h> 76 #include <sys/thr.h> 77 #include <sys/unistd.h> 78 #include <sys/ucontext.h> 79 #include <sys/vnode.h> 80 #include <sys/wait.h> 81 #include <sys/ipc.h> 82 #include <sys/msg.h> 83 #include <sys/sem.h> 84 #include <sys/shm.h> 85 86 #ifdef INET 87 #include <netinet/in.h> 88 #endif 89 90 #include <vm/vm.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 int 179 freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap) 180 { 181 struct wrusage32 wru32; 182 struct __wrusage wru, *wrup; 183 struct siginfo32 si32; 184 struct __siginfo si, *sip; 185 int error, status; 186 187 if (uap->wrusage != NULL) 188 wrup = &wru; 189 else 190 wrup = NULL; 191 if (uap->info != NULL) { 192 sip = &si; 193 bzero(sip, sizeof(*sip)); 194 } else 195 sip = NULL; 196 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id), 197 &status, uap->options, wrup, sip); 198 if (error != 0) 199 return (error); 200 if (uap->status != NULL) 201 error = copyout(&status, uap->status, sizeof(status)); 202 if (uap->wrusage != NULL && error == 0) { 203 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self); 204 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children); 205 error = copyout(&wru32, uap->wrusage, sizeof(wru32)); 206 } 207 if (uap->info != NULL && error == 0) { 208 siginfo_to_siginfo32 (&si, &si32); 209 error = copyout(&si32, uap->info, sizeof(si32)); 210 } 211 return (error); 212 } 213 214 #ifdef COMPAT_FREEBSD4 215 static void 216 copy_statfs(struct statfs *in, struct statfs32 *out) 217 { 218 219 statfs_scale_blocks(in, INT32_MAX); 220 bzero(out, sizeof(*out)); 221 CP(*in, *out, f_bsize); 222 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 223 CP(*in, *out, f_blocks); 224 CP(*in, *out, f_bfree); 225 CP(*in, *out, f_bavail); 226 out->f_files = MIN(in->f_files, INT32_MAX); 227 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 228 CP(*in, *out, f_fsid); 229 CP(*in, *out, f_owner); 230 CP(*in, *out, f_type); 231 CP(*in, *out, f_flags); 232 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 233 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 234 strlcpy(out->f_fstypename, 235 in->f_fstypename, MFSNAMELEN); 236 strlcpy(out->f_mntonname, 237 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 238 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 239 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 240 strlcpy(out->f_mntfromname, 241 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 242 } 243 #endif 244 245 #ifdef COMPAT_FREEBSD4 246 int 247 freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 248 { 249 struct statfs *buf, *sp; 250 struct statfs32 stat32; 251 size_t count, size; 252 int error; 253 254 count = uap->bufsize / sizeof(struct statfs32); 255 size = count * sizeof(struct statfs); 256 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags); 257 if (size > 0) { 258 count = td->td_retval[0]; 259 sp = buf; 260 while (count > 0 && error == 0) { 261 copy_statfs(sp, &stat32); 262 error = copyout(&stat32, uap->buf, sizeof(stat32)); 263 sp++; 264 uap->buf++; 265 count--; 266 } 267 free(buf, M_TEMP); 268 } 269 return (error); 270 } 271 #endif 272 273 int 274 freebsd32_sigaltstack(struct thread *td, 275 struct freebsd32_sigaltstack_args *uap) 276 { 277 struct sigaltstack32 s32; 278 struct sigaltstack ss, oss, *ssp; 279 int error; 280 281 if (uap->ss != NULL) { 282 error = copyin(uap->ss, &s32, sizeof(s32)); 283 if (error) 284 return (error); 285 PTRIN_CP(s32, ss, ss_sp); 286 CP(s32, ss, ss_size); 287 CP(s32, ss, ss_flags); 288 ssp = &ss; 289 } else 290 ssp = NULL; 291 error = kern_sigaltstack(td, ssp, &oss); 292 if (error == 0 && uap->oss != NULL) { 293 PTROUT_CP(oss, s32, ss_sp); 294 CP(oss, s32, ss_size); 295 CP(oss, s32, ss_flags); 296 error = copyout(&s32, uap->oss, sizeof(s32)); 297 } 298 return (error); 299 } 300 301 /* 302 * Custom version of exec_copyin_args() so that we can translate 303 * the pointers. 304 */ 305 int 306 freebsd32_exec_copyin_args(struct image_args *args, char *fname, 307 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 308 { 309 char *argp, *envp; 310 u_int32_t *p32, arg; 311 size_t length; 312 int error; 313 314 bzero(args, sizeof(*args)); 315 if (argv == NULL) 316 return (EFAULT); 317 318 /* 319 * Allocate demand-paged memory for the file name, argument, and 320 * environment strings. 321 */ 322 error = exec_alloc_args(args); 323 if (error != 0) 324 return (error); 325 326 /* 327 * Copy the file name. 328 */ 329 if (fname != NULL) { 330 args->fname = args->buf; 331 error = (segflg == UIO_SYSSPACE) ? 332 copystr(fname, args->fname, PATH_MAX, &length) : 333 copyinstr(fname, args->fname, PATH_MAX, &length); 334 if (error != 0) 335 goto err_exit; 336 } else 337 length = 0; 338 339 args->begin_argv = args->buf + length; 340 args->endp = args->begin_argv; 341 args->stringspace = ARG_MAX; 342 343 /* 344 * extract arguments first 345 */ 346 p32 = argv; 347 for (;;) { 348 error = copyin(p32++, &arg, sizeof(arg)); 349 if (error) 350 goto err_exit; 351 if (arg == 0) 352 break; 353 argp = PTRIN(arg); 354 error = copyinstr(argp, args->endp, args->stringspace, &length); 355 if (error) { 356 if (error == ENAMETOOLONG) 357 error = E2BIG; 358 goto err_exit; 359 } 360 args->stringspace -= length; 361 args->endp += length; 362 args->argc++; 363 } 364 365 args->begin_envv = args->endp; 366 367 /* 368 * extract environment strings 369 */ 370 if (envv) { 371 p32 = envv; 372 for (;;) { 373 error = copyin(p32++, &arg, sizeof(arg)); 374 if (error) 375 goto err_exit; 376 if (arg == 0) 377 break; 378 envp = PTRIN(arg); 379 error = copyinstr(envp, args->endp, args->stringspace, 380 &length); 381 if (error) { 382 if (error == ENAMETOOLONG) 383 error = E2BIG; 384 goto err_exit; 385 } 386 args->stringspace -= length; 387 args->endp += length; 388 args->envc++; 389 } 390 } 391 392 return (0); 393 394 err_exit: 395 exec_free_args(args); 396 return (error); 397 } 398 399 int 400 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 401 { 402 struct image_args eargs; 403 int error; 404 405 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 406 uap->argv, uap->envv); 407 if (error == 0) 408 error = kern_execve(td, &eargs, NULL); 409 return (error); 410 } 411 412 int 413 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 414 { 415 struct image_args eargs; 416 int error; 417 418 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 419 uap->argv, uap->envv); 420 if (error == 0) { 421 eargs.fd = uap->fd; 422 error = kern_execve(td, &eargs, NULL); 423 } 424 return (error); 425 } 426 427 #ifdef __ia64__ 428 static int 429 freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 430 int prot, int fd, off_t pos) 431 { 432 vm_map_t map; 433 vm_map_entry_t entry; 434 int rv; 435 436 map = &td->td_proc->p_vmspace->vm_map; 437 if (fd != -1) 438 prot |= VM_PROT_WRITE; 439 440 if (vm_map_lookup_entry(map, start, &entry)) { 441 if ((entry->protection & prot) != prot) { 442 rv = vm_map_protect(map, 443 trunc_page(start), 444 round_page(end), 445 entry->protection | prot, 446 FALSE); 447 if (rv != KERN_SUCCESS) 448 return (EINVAL); 449 } 450 } else { 451 vm_offset_t addr = trunc_page(start); 452 rv = vm_map_find(map, 0, 0, 453 &addr, PAGE_SIZE, FALSE, prot, 454 VM_PROT_ALL, 0); 455 if (rv != KERN_SUCCESS) 456 return (EINVAL); 457 } 458 459 if (fd != -1) { 460 struct pread_args r; 461 r.fd = fd; 462 r.buf = (void *) start; 463 r.nbyte = end - start; 464 r.offset = pos; 465 return (sys_pread(td, &r)); 466 } else { 467 while (start < end) { 468 subyte((void *) start, 0); 469 start++; 470 } 471 return (0); 472 } 473 } 474 #endif 475 476 int 477 freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 478 { 479 struct mprotect_args ap; 480 481 ap.addr = PTRIN(uap->addr); 482 ap.len = uap->len; 483 ap.prot = uap->prot; 484 #if defined(__amd64__) || defined(__ia64__) 485 if (i386_read_exec && (ap.prot & PROT_READ) != 0) 486 ap.prot |= PROT_EXEC; 487 #endif 488 return (sys_mprotect(td, &ap)); 489 } 490 491 int 492 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 493 { 494 struct mmap_args ap; 495 vm_offset_t addr = (vm_offset_t) uap->addr; 496 vm_size_t len = uap->len; 497 int prot = uap->prot; 498 int flags = uap->flags; 499 int fd = uap->fd; 500 off_t pos = PAIR32TO64(off_t,uap->pos); 501 #ifdef __ia64__ 502 vm_size_t pageoff; 503 int error; 504 505 /* 506 * Attempt to handle page size hassles. 507 */ 508 pageoff = (pos & PAGE_MASK); 509 if (flags & MAP_FIXED) { 510 vm_offset_t start, end; 511 start = addr; 512 end = addr + len; 513 514 if (start != trunc_page(start)) { 515 error = freebsd32_mmap_partial(td, start, 516 round_page(start), prot, 517 fd, pos); 518 if (fd != -1) 519 pos += round_page(start) - start; 520 start = round_page(start); 521 } 522 if (end != round_page(end)) { 523 vm_offset_t t = trunc_page(end); 524 error = freebsd32_mmap_partial(td, t, end, 525 prot, fd, 526 pos + t - start); 527 end = trunc_page(end); 528 } 529 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 530 /* 531 * We can't map this region at all. The specified 532 * address doesn't have the same alignment as the file 533 * position. Fake the mapping by simply reading the 534 * entire region into memory. First we need to make 535 * sure the region exists. 536 */ 537 vm_map_t map; 538 struct pread_args r; 539 int rv; 540 541 prot |= VM_PROT_WRITE; 542 map = &td->td_proc->p_vmspace->vm_map; 543 rv = vm_map_remove(map, start, end); 544 if (rv != KERN_SUCCESS) 545 return (EINVAL); 546 rv = vm_map_find(map, 0, 0, 547 &start, end - start, FALSE, 548 prot, VM_PROT_ALL, 0); 549 if (rv != KERN_SUCCESS) 550 return (EINVAL); 551 r.fd = fd; 552 r.buf = (void *) start; 553 r.nbyte = end - start; 554 r.offset = pos; 555 error = sys_pread(td, &r); 556 if (error) 557 return (error); 558 559 td->td_retval[0] = addr; 560 return (0); 561 } 562 if (end == start) { 563 /* 564 * After dealing with the ragged ends, there 565 * might be none left. 566 */ 567 td->td_retval[0] = addr; 568 return (0); 569 } 570 addr = start; 571 len = end - start; 572 } 573 #endif 574 575 #if defined(__amd64__) || defined(__ia64__) 576 if (i386_read_exec && (prot & PROT_READ)) 577 prot |= PROT_EXEC; 578 #endif 579 580 ap.addr = (void *) addr; 581 ap.len = len; 582 ap.prot = prot; 583 ap.flags = flags; 584 ap.fd = fd; 585 ap.pos = pos; 586 587 return (sys_mmap(td, &ap)); 588 } 589 590 #ifdef COMPAT_FREEBSD6 591 int 592 freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 593 { 594 struct freebsd32_mmap_args ap; 595 596 ap.addr = uap->addr; 597 ap.len = uap->len; 598 ap.prot = uap->prot; 599 ap.flags = uap->flags; 600 ap.fd = uap->fd; 601 ap.pos1 = uap->pos1; 602 ap.pos2 = uap->pos2; 603 604 return (freebsd32_mmap(td, &ap)); 605 } 606 #endif 607 608 int 609 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 610 { 611 struct itimerval itv, oitv, *itvp; 612 struct itimerval32 i32; 613 int error; 614 615 if (uap->itv != NULL) { 616 error = copyin(uap->itv, &i32, sizeof(i32)); 617 if (error) 618 return (error); 619 TV_CP(i32, itv, it_interval); 620 TV_CP(i32, itv, it_value); 621 itvp = &itv; 622 } else 623 itvp = NULL; 624 error = kern_setitimer(td, uap->which, itvp, &oitv); 625 if (error || uap->oitv == NULL) 626 return (error); 627 TV_CP(oitv, i32, it_interval); 628 TV_CP(oitv, i32, it_value); 629 return (copyout(&i32, uap->oitv, sizeof(i32))); 630 } 631 632 int 633 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 634 { 635 struct itimerval itv; 636 struct itimerval32 i32; 637 int error; 638 639 error = kern_getitimer(td, uap->which, &itv); 640 if (error || uap->itv == NULL) 641 return (error); 642 TV_CP(itv, i32, it_interval); 643 TV_CP(itv, i32, it_value); 644 return (copyout(&i32, uap->itv, sizeof(i32))); 645 } 646 647 int 648 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 649 { 650 struct timeval32 tv32; 651 struct timeval tv, *tvp; 652 int error; 653 654 if (uap->tv != NULL) { 655 error = copyin(uap->tv, &tv32, sizeof(tv32)); 656 if (error) 657 return (error); 658 CP(tv32, tv, tv_sec); 659 CP(tv32, tv, tv_usec); 660 tvp = &tv; 661 } else 662 tvp = NULL; 663 /* 664 * XXX Do pointers need PTRIN()? 665 */ 666 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 667 sizeof(int32_t) * 8)); 668 } 669 670 int 671 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 672 { 673 struct timespec32 ts32; 674 struct timespec ts; 675 struct timeval tv, *tvp; 676 sigset_t set, *uset; 677 int error; 678 679 if (uap->ts != NULL) { 680 error = copyin(uap->ts, &ts32, sizeof(ts32)); 681 if (error != 0) 682 return (error); 683 CP(ts32, ts, tv_sec); 684 CP(ts32, ts, tv_nsec); 685 TIMESPEC_TO_TIMEVAL(&tv, &ts); 686 tvp = &tv; 687 } else 688 tvp = NULL; 689 if (uap->sm != NULL) { 690 error = copyin(uap->sm, &set, sizeof(set)); 691 if (error != 0) 692 return (error); 693 uset = &set; 694 } else 695 uset = NULL; 696 /* 697 * XXX Do pointers need PTRIN()? 698 */ 699 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 700 uset, sizeof(int32_t) * 8); 701 return (error); 702 } 703 704 /* 705 * Copy 'count' items into the destination list pointed to by uap->eventlist. 706 */ 707 static int 708 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 709 { 710 struct freebsd32_kevent_args *uap; 711 struct kevent32 ks32[KQ_NEVENTS]; 712 int i, error = 0; 713 714 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 715 uap = (struct freebsd32_kevent_args *)arg; 716 717 for (i = 0; i < count; i++) { 718 CP(kevp[i], ks32[i], ident); 719 CP(kevp[i], ks32[i], filter); 720 CP(kevp[i], ks32[i], flags); 721 CP(kevp[i], ks32[i], fflags); 722 CP(kevp[i], ks32[i], data); 723 PTROUT_CP(kevp[i], ks32[i], udata); 724 } 725 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 726 if (error == 0) 727 uap->eventlist += count; 728 return (error); 729 } 730 731 /* 732 * Copy 'count' items from the list pointed to by uap->changelist. 733 */ 734 static int 735 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 736 { 737 struct freebsd32_kevent_args *uap; 738 struct kevent32 ks32[KQ_NEVENTS]; 739 int i, error = 0; 740 741 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 742 uap = (struct freebsd32_kevent_args *)arg; 743 744 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 745 if (error) 746 goto done; 747 uap->changelist += count; 748 749 for (i = 0; i < count; i++) { 750 CP(ks32[i], kevp[i], ident); 751 CP(ks32[i], kevp[i], filter); 752 CP(ks32[i], kevp[i], flags); 753 CP(ks32[i], kevp[i], fflags); 754 CP(ks32[i], kevp[i], data); 755 PTRIN_CP(ks32[i], kevp[i], udata); 756 } 757 done: 758 return (error); 759 } 760 761 int 762 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 763 { 764 struct timespec32 ts32; 765 struct timespec ts, *tsp; 766 struct kevent_copyops k_ops = { uap, 767 freebsd32_kevent_copyout, 768 freebsd32_kevent_copyin}; 769 int error; 770 771 772 if (uap->timeout) { 773 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 774 if (error) 775 return (error); 776 CP(ts32, ts, tv_sec); 777 CP(ts32, ts, tv_nsec); 778 tsp = &ts; 779 } else 780 tsp = NULL; 781 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 782 &k_ops, tsp); 783 return (error); 784 } 785 786 int 787 freebsd32_gettimeofday(struct thread *td, 788 struct freebsd32_gettimeofday_args *uap) 789 { 790 struct timeval atv; 791 struct timeval32 atv32; 792 struct timezone rtz; 793 int error = 0; 794 795 if (uap->tp) { 796 microtime(&atv); 797 CP(atv, atv32, tv_sec); 798 CP(atv, atv32, tv_usec); 799 error = copyout(&atv32, uap->tp, sizeof (atv32)); 800 } 801 if (error == 0 && uap->tzp != NULL) { 802 rtz.tz_minuteswest = tz_minuteswest; 803 rtz.tz_dsttime = tz_dsttime; 804 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 805 } 806 return (error); 807 } 808 809 int 810 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 811 { 812 struct rusage32 s32; 813 struct rusage s; 814 int error; 815 816 error = kern_getrusage(td, uap->who, &s); 817 if (error) 818 return (error); 819 if (uap->rusage != NULL) { 820 freebsd32_rusage_out(&s, &s32); 821 error = copyout(&s32, uap->rusage, sizeof(s32)); 822 } 823 return (error); 824 } 825 826 static int 827 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 828 { 829 struct iovec32 iov32; 830 struct iovec *iov; 831 struct uio *uio; 832 u_int iovlen; 833 int error, i; 834 835 *uiop = NULL; 836 if (iovcnt > UIO_MAXIOV) 837 return (EINVAL); 838 iovlen = iovcnt * sizeof(struct iovec); 839 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 840 iov = (struct iovec *)(uio + 1); 841 for (i = 0; i < iovcnt; i++) { 842 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 843 if (error) { 844 free(uio, M_IOV); 845 return (error); 846 } 847 iov[i].iov_base = PTRIN(iov32.iov_base); 848 iov[i].iov_len = iov32.iov_len; 849 } 850 uio->uio_iov = iov; 851 uio->uio_iovcnt = iovcnt; 852 uio->uio_segflg = UIO_USERSPACE; 853 uio->uio_offset = -1; 854 uio->uio_resid = 0; 855 for (i = 0; i < iovcnt; i++) { 856 if (iov->iov_len > INT_MAX - uio->uio_resid) { 857 free(uio, M_IOV); 858 return (EINVAL); 859 } 860 uio->uio_resid += iov->iov_len; 861 iov++; 862 } 863 *uiop = uio; 864 return (0); 865 } 866 867 int 868 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 869 { 870 struct uio *auio; 871 int error; 872 873 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 874 if (error) 875 return (error); 876 error = kern_readv(td, uap->fd, auio); 877 free(auio, M_IOV); 878 return (error); 879 } 880 881 int 882 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 883 { 884 struct uio *auio; 885 int error; 886 887 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 888 if (error) 889 return (error); 890 error = kern_writev(td, uap->fd, auio); 891 free(auio, M_IOV); 892 return (error); 893 } 894 895 int 896 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 897 { 898 struct uio *auio; 899 int error; 900 901 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 902 if (error) 903 return (error); 904 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 905 free(auio, M_IOV); 906 return (error); 907 } 908 909 int 910 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 911 { 912 struct uio *auio; 913 int error; 914 915 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 916 if (error) 917 return (error); 918 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 919 free(auio, M_IOV); 920 return (error); 921 } 922 923 int 924 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 925 int error) 926 { 927 struct iovec32 iov32; 928 struct iovec *iov; 929 u_int iovlen; 930 int i; 931 932 *iovp = NULL; 933 if (iovcnt > UIO_MAXIOV) 934 return (error); 935 iovlen = iovcnt * sizeof(struct iovec); 936 iov = malloc(iovlen, M_IOV, M_WAITOK); 937 for (i = 0; i < iovcnt; i++) { 938 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 939 if (error) { 940 free(iov, M_IOV); 941 return (error); 942 } 943 iov[i].iov_base = PTRIN(iov32.iov_base); 944 iov[i].iov_len = iov32.iov_len; 945 } 946 *iovp = iov; 947 return (0); 948 } 949 950 static int 951 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 952 { 953 struct msghdr32 m32; 954 int error; 955 956 error = copyin(msg32, &m32, sizeof(m32)); 957 if (error) 958 return (error); 959 msg->msg_name = PTRIN(m32.msg_name); 960 msg->msg_namelen = m32.msg_namelen; 961 msg->msg_iov = PTRIN(m32.msg_iov); 962 msg->msg_iovlen = m32.msg_iovlen; 963 msg->msg_control = PTRIN(m32.msg_control); 964 msg->msg_controllen = m32.msg_controllen; 965 msg->msg_flags = m32.msg_flags; 966 return (0); 967 } 968 969 static int 970 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 971 { 972 struct msghdr32 m32; 973 int error; 974 975 m32.msg_name = PTROUT(msg->msg_name); 976 m32.msg_namelen = msg->msg_namelen; 977 m32.msg_iov = PTROUT(msg->msg_iov); 978 m32.msg_iovlen = msg->msg_iovlen; 979 m32.msg_control = PTROUT(msg->msg_control); 980 m32.msg_controllen = msg->msg_controllen; 981 m32.msg_flags = msg->msg_flags; 982 error = copyout(&m32, msg32, sizeof(m32)); 983 return (error); 984 } 985 986 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 987 #define FREEBSD32_ALIGN(p) \ 988 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 989 #define FREEBSD32_CMSG_SPACE(l) \ 990 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 991 992 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 993 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 994 static int 995 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 996 { 997 struct cmsghdr *cm; 998 void *data; 999 socklen_t clen, datalen; 1000 int error; 1001 caddr_t ctlbuf; 1002 int len, maxlen, copylen; 1003 struct mbuf *m; 1004 error = 0; 1005 1006 len = msg->msg_controllen; 1007 maxlen = msg->msg_controllen; 1008 msg->msg_controllen = 0; 1009 1010 m = control; 1011 ctlbuf = msg->msg_control; 1012 1013 while (m && len > 0) { 1014 cm = mtod(m, struct cmsghdr *); 1015 clen = m->m_len; 1016 1017 while (cm != NULL) { 1018 1019 if (sizeof(struct cmsghdr) > clen || 1020 cm->cmsg_len > clen) { 1021 error = EINVAL; 1022 break; 1023 } 1024 1025 data = CMSG_DATA(cm); 1026 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1027 1028 /* Adjust message length */ 1029 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 1030 datalen; 1031 1032 1033 /* Copy cmsghdr */ 1034 copylen = sizeof(struct cmsghdr); 1035 if (len < copylen) { 1036 msg->msg_flags |= MSG_CTRUNC; 1037 copylen = len; 1038 } 1039 1040 error = copyout(cm,ctlbuf,copylen); 1041 if (error) 1042 goto exit; 1043 1044 ctlbuf += FREEBSD32_ALIGN(copylen); 1045 len -= FREEBSD32_ALIGN(copylen); 1046 1047 if (len <= 0) 1048 break; 1049 1050 /* Copy data */ 1051 copylen = datalen; 1052 if (len < copylen) { 1053 msg->msg_flags |= MSG_CTRUNC; 1054 copylen = len; 1055 } 1056 1057 error = copyout(data,ctlbuf,copylen); 1058 if (error) 1059 goto exit; 1060 1061 ctlbuf += FREEBSD32_ALIGN(copylen); 1062 len -= FREEBSD32_ALIGN(copylen); 1063 1064 if (CMSG_SPACE(datalen) < clen) { 1065 clen -= CMSG_SPACE(datalen); 1066 cm = (struct cmsghdr *) 1067 ((caddr_t)cm + CMSG_SPACE(datalen)); 1068 } else { 1069 clen = 0; 1070 cm = NULL; 1071 } 1072 } 1073 m = m->m_next; 1074 } 1075 1076 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 1077 1078 exit: 1079 return (error); 1080 1081 } 1082 1083 int 1084 freebsd32_recvmsg(td, uap) 1085 struct thread *td; 1086 struct freebsd32_recvmsg_args /* { 1087 int s; 1088 struct msghdr32 *msg; 1089 int flags; 1090 } */ *uap; 1091 { 1092 struct msghdr msg; 1093 struct msghdr32 m32; 1094 struct iovec *uiov, *iov; 1095 struct mbuf *control = NULL; 1096 struct mbuf **controlp; 1097 1098 int error; 1099 error = copyin(uap->msg, &m32, sizeof(m32)); 1100 if (error) 1101 return (error); 1102 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1103 if (error) 1104 return (error); 1105 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1106 EMSGSIZE); 1107 if (error) 1108 return (error); 1109 msg.msg_flags = uap->flags; 1110 uiov = msg.msg_iov; 1111 msg.msg_iov = iov; 1112 1113 controlp = (msg.msg_control != NULL) ? &control : NULL; 1114 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1115 if (error == 0) { 1116 msg.msg_iov = uiov; 1117 1118 if (control != NULL) 1119 error = freebsd32_copy_msg_out(&msg, control); 1120 else 1121 msg.msg_controllen = 0; 1122 1123 if (error == 0) 1124 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1125 } 1126 free(iov, M_IOV); 1127 1128 if (control != NULL) 1129 m_freem(control); 1130 1131 return (error); 1132 } 1133 1134 1135 static int 1136 freebsd32_convert_msg_in(struct mbuf **controlp) 1137 { 1138 struct mbuf *control = *controlp; 1139 struct cmsghdr *cm = mtod(control, struct cmsghdr *); 1140 void *data; 1141 socklen_t clen = control->m_len, datalen; 1142 int error; 1143 1144 error = 0; 1145 *controlp = NULL; 1146 1147 while (cm != NULL) { 1148 if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) { 1149 error = EINVAL; 1150 break; 1151 } 1152 1153 data = FREEBSD32_CMSG_DATA(cm); 1154 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1155 1156 *controlp = sbcreatecontrol(data, datalen, cm->cmsg_type, 1157 cm->cmsg_level); 1158 controlp = &(*controlp)->m_next; 1159 1160 if (FREEBSD32_CMSG_SPACE(datalen) < clen) { 1161 clen -= FREEBSD32_CMSG_SPACE(datalen); 1162 cm = (struct cmsghdr *) 1163 ((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen)); 1164 } else { 1165 clen = 0; 1166 cm = NULL; 1167 } 1168 } 1169 1170 m_freem(control); 1171 return (error); 1172 } 1173 1174 1175 int 1176 freebsd32_sendmsg(struct thread *td, 1177 struct freebsd32_sendmsg_args *uap) 1178 { 1179 struct msghdr msg; 1180 struct msghdr32 m32; 1181 struct iovec *iov; 1182 struct mbuf *control = NULL; 1183 struct sockaddr *to = NULL; 1184 int error; 1185 1186 error = copyin(uap->msg, &m32, sizeof(m32)); 1187 if (error) 1188 return (error); 1189 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1190 if (error) 1191 return (error); 1192 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1193 EMSGSIZE); 1194 if (error) 1195 return (error); 1196 msg.msg_iov = iov; 1197 if (msg.msg_name != NULL) { 1198 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1199 if (error) { 1200 to = NULL; 1201 goto out; 1202 } 1203 msg.msg_name = to; 1204 } 1205 1206 if (msg.msg_control) { 1207 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1208 error = EINVAL; 1209 goto out; 1210 } 1211 1212 error = sockargs(&control, msg.msg_control, 1213 msg.msg_controllen, MT_CONTROL); 1214 if (error) 1215 goto out; 1216 1217 error = freebsd32_convert_msg_in(&control); 1218 if (error) 1219 goto out; 1220 } 1221 1222 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1223 UIO_USERSPACE); 1224 1225 out: 1226 free(iov, M_IOV); 1227 if (to) 1228 free(to, M_SONAME); 1229 return (error); 1230 } 1231 1232 int 1233 freebsd32_recvfrom(struct thread *td, 1234 struct freebsd32_recvfrom_args *uap) 1235 { 1236 struct msghdr msg; 1237 struct iovec aiov; 1238 int error; 1239 1240 if (uap->fromlenaddr) { 1241 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1242 sizeof(msg.msg_namelen)); 1243 if (error) 1244 return (error); 1245 } else { 1246 msg.msg_namelen = 0; 1247 } 1248 1249 msg.msg_name = PTRIN(uap->from); 1250 msg.msg_iov = &aiov; 1251 msg.msg_iovlen = 1; 1252 aiov.iov_base = PTRIN(uap->buf); 1253 aiov.iov_len = uap->len; 1254 msg.msg_control = NULL; 1255 msg.msg_flags = uap->flags; 1256 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1257 if (error == 0 && uap->fromlenaddr) 1258 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1259 sizeof (msg.msg_namelen)); 1260 return (error); 1261 } 1262 1263 int 1264 freebsd32_settimeofday(struct thread *td, 1265 struct freebsd32_settimeofday_args *uap) 1266 { 1267 struct timeval32 tv32; 1268 struct timeval tv, *tvp; 1269 struct timezone tz, *tzp; 1270 int error; 1271 1272 if (uap->tv) { 1273 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1274 if (error) 1275 return (error); 1276 CP(tv32, tv, tv_sec); 1277 CP(tv32, tv, tv_usec); 1278 tvp = &tv; 1279 } else 1280 tvp = NULL; 1281 if (uap->tzp) { 1282 error = copyin(uap->tzp, &tz, sizeof(tz)); 1283 if (error) 1284 return (error); 1285 tzp = &tz; 1286 } else 1287 tzp = NULL; 1288 return (kern_settimeofday(td, tvp, tzp)); 1289 } 1290 1291 int 1292 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1293 { 1294 struct timeval32 s32[2]; 1295 struct timeval s[2], *sp; 1296 int error; 1297 1298 if (uap->tptr != NULL) { 1299 error = copyin(uap->tptr, s32, sizeof(s32)); 1300 if (error) 1301 return (error); 1302 CP(s32[0], s[0], tv_sec); 1303 CP(s32[0], s[0], tv_usec); 1304 CP(s32[1], s[1], tv_sec); 1305 CP(s32[1], s[1], tv_usec); 1306 sp = s; 1307 } else 1308 sp = NULL; 1309 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1310 } 1311 1312 int 1313 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1314 { 1315 struct timeval32 s32[2]; 1316 struct timeval s[2], *sp; 1317 int error; 1318 1319 if (uap->tptr != NULL) { 1320 error = copyin(uap->tptr, s32, sizeof(s32)); 1321 if (error) 1322 return (error); 1323 CP(s32[0], s[0], tv_sec); 1324 CP(s32[0], s[0], tv_usec); 1325 CP(s32[1], s[1], tv_sec); 1326 CP(s32[1], s[1], tv_usec); 1327 sp = s; 1328 } else 1329 sp = NULL; 1330 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1331 } 1332 1333 int 1334 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1335 { 1336 struct timeval32 s32[2]; 1337 struct timeval s[2], *sp; 1338 int error; 1339 1340 if (uap->tptr != NULL) { 1341 error = copyin(uap->tptr, s32, sizeof(s32)); 1342 if (error) 1343 return (error); 1344 CP(s32[0], s[0], tv_sec); 1345 CP(s32[0], s[0], tv_usec); 1346 CP(s32[1], s[1], tv_sec); 1347 CP(s32[1], s[1], tv_usec); 1348 sp = s; 1349 } else 1350 sp = NULL; 1351 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1352 } 1353 1354 int 1355 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1356 { 1357 struct timeval32 s32[2]; 1358 struct timeval s[2], *sp; 1359 int error; 1360 1361 if (uap->times != NULL) { 1362 error = copyin(uap->times, s32, sizeof(s32)); 1363 if (error) 1364 return (error); 1365 CP(s32[0], s[0], tv_sec); 1366 CP(s32[0], s[0], tv_usec); 1367 CP(s32[1], s[1], tv_sec); 1368 CP(s32[1], s[1], tv_usec); 1369 sp = s; 1370 } else 1371 sp = NULL; 1372 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1373 sp, UIO_SYSSPACE)); 1374 } 1375 1376 int 1377 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1378 { 1379 struct timeval32 tv32; 1380 struct timeval delta, olddelta, *deltap; 1381 int error; 1382 1383 if (uap->delta) { 1384 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1385 if (error) 1386 return (error); 1387 CP(tv32, delta, tv_sec); 1388 CP(tv32, delta, tv_usec); 1389 deltap = δ 1390 } else 1391 deltap = NULL; 1392 error = kern_adjtime(td, deltap, &olddelta); 1393 if (uap->olddelta && error == 0) { 1394 CP(olddelta, tv32, tv_sec); 1395 CP(olddelta, tv32, tv_usec); 1396 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1397 } 1398 return (error); 1399 } 1400 1401 #ifdef COMPAT_FREEBSD4 1402 int 1403 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1404 { 1405 struct statfs32 s32; 1406 struct statfs s; 1407 int error; 1408 1409 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1410 if (error) 1411 return (error); 1412 copy_statfs(&s, &s32); 1413 return (copyout(&s32, uap->buf, sizeof(s32))); 1414 } 1415 #endif 1416 1417 #ifdef COMPAT_FREEBSD4 1418 int 1419 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1420 { 1421 struct statfs32 s32; 1422 struct statfs s; 1423 int error; 1424 1425 error = kern_fstatfs(td, uap->fd, &s); 1426 if (error) 1427 return (error); 1428 copy_statfs(&s, &s32); 1429 return (copyout(&s32, uap->buf, sizeof(s32))); 1430 } 1431 #endif 1432 1433 #ifdef COMPAT_FREEBSD4 1434 int 1435 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1436 { 1437 struct statfs32 s32; 1438 struct statfs s; 1439 fhandle_t fh; 1440 int error; 1441 1442 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1443 return (error); 1444 error = kern_fhstatfs(td, fh, &s); 1445 if (error) 1446 return (error); 1447 copy_statfs(&s, &s32); 1448 return (copyout(&s32, uap->buf, sizeof(s32))); 1449 } 1450 #endif 1451 1452 int 1453 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1454 { 1455 struct pread_args ap; 1456 1457 ap.fd = uap->fd; 1458 ap.buf = uap->buf; 1459 ap.nbyte = uap->nbyte; 1460 ap.offset = PAIR32TO64(off_t,uap->offset); 1461 return (sys_pread(td, &ap)); 1462 } 1463 1464 int 1465 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1466 { 1467 struct pwrite_args ap; 1468 1469 ap.fd = uap->fd; 1470 ap.buf = uap->buf; 1471 ap.nbyte = uap->nbyte; 1472 ap.offset = PAIR32TO64(off_t,uap->offset); 1473 return (sys_pwrite(td, &ap)); 1474 } 1475 1476 #ifdef COMPAT_43 1477 int 1478 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1479 { 1480 struct lseek_args nuap; 1481 1482 nuap.fd = uap->fd; 1483 nuap.offset = uap->offset; 1484 nuap.whence = uap->whence; 1485 return (sys_lseek(td, &nuap)); 1486 } 1487 #endif 1488 1489 int 1490 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1491 { 1492 int error; 1493 struct lseek_args ap; 1494 off_t pos; 1495 1496 ap.fd = uap->fd; 1497 ap.offset = PAIR32TO64(off_t,uap->offset); 1498 ap.whence = uap->whence; 1499 error = sys_lseek(td, &ap); 1500 /* Expand the quad return into two parts for eax and edx */ 1501 pos = *(off_t *)(td->td_retval); 1502 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1503 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1504 return error; 1505 } 1506 1507 int 1508 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1509 { 1510 struct truncate_args ap; 1511 1512 ap.path = uap->path; 1513 ap.length = PAIR32TO64(off_t,uap->length); 1514 return (sys_truncate(td, &ap)); 1515 } 1516 1517 int 1518 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1519 { 1520 struct ftruncate_args ap; 1521 1522 ap.fd = uap->fd; 1523 ap.length = PAIR32TO64(off_t,uap->length); 1524 return (sys_ftruncate(td, &ap)); 1525 } 1526 1527 #ifdef COMPAT_43 1528 int 1529 ofreebsd32_getdirentries(struct thread *td, 1530 struct ofreebsd32_getdirentries_args *uap) 1531 { 1532 struct ogetdirentries_args ap; 1533 int error; 1534 long loff; 1535 int32_t loff_cut; 1536 1537 ap.fd = uap->fd; 1538 ap.buf = uap->buf; 1539 ap.count = uap->count; 1540 ap.basep = NULL; 1541 error = kern_ogetdirentries(td, &ap, &loff); 1542 if (error == 0) { 1543 loff_cut = loff; 1544 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1545 } 1546 return (error); 1547 } 1548 #endif 1549 1550 int 1551 freebsd32_getdirentries(struct thread *td, 1552 struct freebsd32_getdirentries_args *uap) 1553 { 1554 long base; 1555 int32_t base32; 1556 int error; 1557 1558 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base); 1559 if (error) 1560 return (error); 1561 if (uap->basep != NULL) { 1562 base32 = base; 1563 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1564 } 1565 return (error); 1566 } 1567 1568 #ifdef COMPAT_FREEBSD6 1569 /* versions with the 'int pad' argument */ 1570 int 1571 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1572 { 1573 struct pread_args ap; 1574 1575 ap.fd = uap->fd; 1576 ap.buf = uap->buf; 1577 ap.nbyte = uap->nbyte; 1578 ap.offset = PAIR32TO64(off_t,uap->offset); 1579 return (sys_pread(td, &ap)); 1580 } 1581 1582 int 1583 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1584 { 1585 struct pwrite_args ap; 1586 1587 ap.fd = uap->fd; 1588 ap.buf = uap->buf; 1589 ap.nbyte = uap->nbyte; 1590 ap.offset = PAIR32TO64(off_t,uap->offset); 1591 return (sys_pwrite(td, &ap)); 1592 } 1593 1594 int 1595 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1596 { 1597 int error; 1598 struct lseek_args ap; 1599 off_t pos; 1600 1601 ap.fd = uap->fd; 1602 ap.offset = PAIR32TO64(off_t,uap->offset); 1603 ap.whence = uap->whence; 1604 error = sys_lseek(td, &ap); 1605 /* Expand the quad return into two parts for eax and edx */ 1606 pos = *(off_t *)(td->td_retval); 1607 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1608 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1609 return error; 1610 } 1611 1612 int 1613 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1614 { 1615 struct truncate_args ap; 1616 1617 ap.path = uap->path; 1618 ap.length = PAIR32TO64(off_t,uap->length); 1619 return (sys_truncate(td, &ap)); 1620 } 1621 1622 int 1623 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1624 { 1625 struct ftruncate_args ap; 1626 1627 ap.fd = uap->fd; 1628 ap.length = PAIR32TO64(off_t,uap->length); 1629 return (sys_ftruncate(td, &ap)); 1630 } 1631 #endif /* COMPAT_FREEBSD6 */ 1632 1633 struct sf_hdtr32 { 1634 uint32_t headers; 1635 int hdr_cnt; 1636 uint32_t trailers; 1637 int trl_cnt; 1638 }; 1639 1640 static int 1641 freebsd32_do_sendfile(struct thread *td, 1642 struct freebsd32_sendfile_args *uap, int compat) 1643 { 1644 struct sendfile_args ap; 1645 struct sf_hdtr32 hdtr32; 1646 struct sf_hdtr hdtr; 1647 struct uio *hdr_uio, *trl_uio; 1648 struct iovec32 *iov32; 1649 int error; 1650 1651 hdr_uio = trl_uio = NULL; 1652 1653 ap.fd = uap->fd; 1654 ap.s = uap->s; 1655 ap.offset = PAIR32TO64(off_t,uap->offset); 1656 ap.nbytes = uap->nbytes; 1657 ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */ 1658 ap.sbytes = uap->sbytes; 1659 ap.flags = uap->flags; 1660 1661 if (uap->hdtr != NULL) { 1662 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1663 if (error) 1664 goto out; 1665 PTRIN_CP(hdtr32, hdtr, headers); 1666 CP(hdtr32, hdtr, hdr_cnt); 1667 PTRIN_CP(hdtr32, hdtr, trailers); 1668 CP(hdtr32, hdtr, trl_cnt); 1669 1670 if (hdtr.headers != NULL) { 1671 iov32 = PTRIN(hdtr32.headers); 1672 error = freebsd32_copyinuio(iov32, 1673 hdtr32.hdr_cnt, &hdr_uio); 1674 if (error) 1675 goto out; 1676 } 1677 if (hdtr.trailers != NULL) { 1678 iov32 = PTRIN(hdtr32.trailers); 1679 error = freebsd32_copyinuio(iov32, 1680 hdtr32.trl_cnt, &trl_uio); 1681 if (error) 1682 goto out; 1683 } 1684 } 1685 1686 error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat); 1687 out: 1688 if (hdr_uio) 1689 free(hdr_uio, M_IOV); 1690 if (trl_uio) 1691 free(trl_uio, M_IOV); 1692 return (error); 1693 } 1694 1695 #ifdef COMPAT_FREEBSD4 1696 int 1697 freebsd4_freebsd32_sendfile(struct thread *td, 1698 struct freebsd4_freebsd32_sendfile_args *uap) 1699 { 1700 return (freebsd32_do_sendfile(td, 1701 (struct freebsd32_sendfile_args *)uap, 1)); 1702 } 1703 #endif 1704 1705 int 1706 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1707 { 1708 1709 return (freebsd32_do_sendfile(td, uap, 0)); 1710 } 1711 1712 static void 1713 copy_stat(struct stat *in, struct stat32 *out) 1714 { 1715 1716 CP(*in, *out, st_dev); 1717 CP(*in, *out, st_ino); 1718 CP(*in, *out, st_mode); 1719 CP(*in, *out, st_nlink); 1720 CP(*in, *out, st_uid); 1721 CP(*in, *out, st_gid); 1722 CP(*in, *out, st_rdev); 1723 TS_CP(*in, *out, st_atim); 1724 TS_CP(*in, *out, st_mtim); 1725 TS_CP(*in, *out, st_ctim); 1726 CP(*in, *out, st_size); 1727 CP(*in, *out, st_blocks); 1728 CP(*in, *out, st_blksize); 1729 CP(*in, *out, st_flags); 1730 CP(*in, *out, st_gen); 1731 TS_CP(*in, *out, st_birthtim); 1732 } 1733 1734 #ifdef COMPAT_43 1735 static void 1736 copy_ostat(struct stat *in, struct ostat32 *out) 1737 { 1738 1739 CP(*in, *out, st_dev); 1740 CP(*in, *out, st_ino); 1741 CP(*in, *out, st_mode); 1742 CP(*in, *out, st_nlink); 1743 CP(*in, *out, st_uid); 1744 CP(*in, *out, st_gid); 1745 CP(*in, *out, st_rdev); 1746 CP(*in, *out, st_size); 1747 TS_CP(*in, *out, st_atim); 1748 TS_CP(*in, *out, st_mtim); 1749 TS_CP(*in, *out, st_ctim); 1750 CP(*in, *out, st_blksize); 1751 CP(*in, *out, st_blocks); 1752 CP(*in, *out, st_flags); 1753 CP(*in, *out, st_gen); 1754 } 1755 #endif 1756 1757 int 1758 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1759 { 1760 struct stat sb; 1761 struct stat32 sb32; 1762 int error; 1763 1764 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1765 if (error) 1766 return (error); 1767 copy_stat(&sb, &sb32); 1768 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1769 return (error); 1770 } 1771 1772 #ifdef COMPAT_43 1773 int 1774 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1775 { 1776 struct stat sb; 1777 struct ostat32 sb32; 1778 int error; 1779 1780 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1781 if (error) 1782 return (error); 1783 copy_ostat(&sb, &sb32); 1784 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1785 return (error); 1786 } 1787 #endif 1788 1789 int 1790 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1791 { 1792 struct stat ub; 1793 struct stat32 ub32; 1794 int error; 1795 1796 error = kern_fstat(td, uap->fd, &ub); 1797 if (error) 1798 return (error); 1799 copy_stat(&ub, &ub32); 1800 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1801 return (error); 1802 } 1803 1804 #ifdef COMPAT_43 1805 int 1806 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1807 { 1808 struct stat ub; 1809 struct ostat32 ub32; 1810 int error; 1811 1812 error = kern_fstat(td, uap->fd, &ub); 1813 if (error) 1814 return (error); 1815 copy_ostat(&ub, &ub32); 1816 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1817 return (error); 1818 } 1819 #endif 1820 1821 int 1822 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1823 { 1824 struct stat ub; 1825 struct stat32 ub32; 1826 int error; 1827 1828 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1829 if (error) 1830 return (error); 1831 copy_stat(&ub, &ub32); 1832 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1833 return (error); 1834 } 1835 1836 int 1837 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1838 { 1839 struct stat sb; 1840 struct stat32 sb32; 1841 int error; 1842 1843 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1844 if (error) 1845 return (error); 1846 copy_stat(&sb, &sb32); 1847 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1848 return (error); 1849 } 1850 1851 #ifdef COMPAT_43 1852 int 1853 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1854 { 1855 struct stat sb; 1856 struct ostat32 sb32; 1857 int error; 1858 1859 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1860 if (error) 1861 return (error); 1862 copy_ostat(&sb, &sb32); 1863 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1864 return (error); 1865 } 1866 #endif 1867 1868 int 1869 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1870 { 1871 int error, name[CTL_MAXNAME]; 1872 size_t j, oldlen; 1873 1874 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1875 return (EINVAL); 1876 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1877 if (error) 1878 return (error); 1879 if (uap->oldlenp) 1880 oldlen = fuword32(uap->oldlenp); 1881 else 1882 oldlen = 0; 1883 error = userland_sysctl(td, name, uap->namelen, 1884 uap->old, &oldlen, 1, 1885 uap->new, uap->newlen, &j, SCTL_MASK32); 1886 if (error && error != ENOMEM) 1887 return (error); 1888 if (uap->oldlenp) 1889 suword32(uap->oldlenp, j); 1890 return (0); 1891 } 1892 1893 int 1894 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1895 { 1896 uint32_t version; 1897 int error; 1898 struct jail j; 1899 1900 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1901 if (error) 1902 return (error); 1903 1904 switch (version) { 1905 case 0: 1906 { 1907 /* FreeBSD single IPv4 jails. */ 1908 struct jail32_v0 j32_v0; 1909 1910 bzero(&j, sizeof(struct jail)); 1911 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1912 if (error) 1913 return (error); 1914 CP(j32_v0, j, version); 1915 PTRIN_CP(j32_v0, j, path); 1916 PTRIN_CP(j32_v0, j, hostname); 1917 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1918 break; 1919 } 1920 1921 case 1: 1922 /* 1923 * Version 1 was used by multi-IPv4 jail implementations 1924 * that never made it into the official kernel. 1925 */ 1926 return (EINVAL); 1927 1928 case 2: /* JAIL_API_VERSION */ 1929 { 1930 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1931 struct jail32 j32; 1932 1933 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1934 if (error) 1935 return (error); 1936 CP(j32, j, version); 1937 PTRIN_CP(j32, j, path); 1938 PTRIN_CP(j32, j, hostname); 1939 PTRIN_CP(j32, j, jailname); 1940 CP(j32, j, ip4s); 1941 CP(j32, j, ip6s); 1942 PTRIN_CP(j32, j, ip4); 1943 PTRIN_CP(j32, j, ip6); 1944 break; 1945 } 1946 1947 default: 1948 /* Sci-Fi jails are not supported, sorry. */ 1949 return (EINVAL); 1950 } 1951 return (kern_jail(td, &j)); 1952 } 1953 1954 int 1955 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1956 { 1957 struct uio *auio; 1958 int error; 1959 1960 /* Check that we have an even number of iovecs. */ 1961 if (uap->iovcnt & 1) 1962 return (EINVAL); 1963 1964 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1965 if (error) 1966 return (error); 1967 error = kern_jail_set(td, auio, uap->flags); 1968 free(auio, M_IOV); 1969 return (error); 1970 } 1971 1972 int 1973 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1974 { 1975 struct iovec32 iov32; 1976 struct uio *auio; 1977 int error, i; 1978 1979 /* Check that we have an even number of iovecs. */ 1980 if (uap->iovcnt & 1) 1981 return (EINVAL); 1982 1983 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1984 if (error) 1985 return (error); 1986 error = kern_jail_get(td, auio, uap->flags); 1987 if (error == 0) 1988 for (i = 0; i < uap->iovcnt; i++) { 1989 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1990 CP(auio->uio_iov[i], iov32, iov_len); 1991 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1992 if (error != 0) 1993 break; 1994 } 1995 free(auio, M_IOV); 1996 return (error); 1997 } 1998 1999 int 2000 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2001 { 2002 struct sigaction32 s32; 2003 struct sigaction sa, osa, *sap; 2004 int error; 2005 2006 if (uap->act) { 2007 error = copyin(uap->act, &s32, sizeof(s32)); 2008 if (error) 2009 return (error); 2010 sa.sa_handler = PTRIN(s32.sa_u); 2011 CP(s32, sa, sa_flags); 2012 CP(s32, sa, sa_mask); 2013 sap = &sa; 2014 } else 2015 sap = NULL; 2016 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2017 if (error == 0 && uap->oact != NULL) { 2018 s32.sa_u = PTROUT(osa.sa_handler); 2019 CP(osa, s32, sa_flags); 2020 CP(osa, s32, sa_mask); 2021 error = copyout(&s32, uap->oact, sizeof(s32)); 2022 } 2023 return (error); 2024 } 2025 2026 #ifdef COMPAT_FREEBSD4 2027 int 2028 freebsd4_freebsd32_sigaction(struct thread *td, 2029 struct freebsd4_freebsd32_sigaction_args *uap) 2030 { 2031 struct sigaction32 s32; 2032 struct sigaction sa, osa, *sap; 2033 int error; 2034 2035 if (uap->act) { 2036 error = copyin(uap->act, &s32, sizeof(s32)); 2037 if (error) 2038 return (error); 2039 sa.sa_handler = PTRIN(s32.sa_u); 2040 CP(s32, sa, sa_flags); 2041 CP(s32, sa, sa_mask); 2042 sap = &sa; 2043 } else 2044 sap = NULL; 2045 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2046 if (error == 0 && uap->oact != NULL) { 2047 s32.sa_u = PTROUT(osa.sa_handler); 2048 CP(osa, s32, sa_flags); 2049 CP(osa, s32, sa_mask); 2050 error = copyout(&s32, uap->oact, sizeof(s32)); 2051 } 2052 return (error); 2053 } 2054 #endif 2055 2056 #ifdef COMPAT_43 2057 struct osigaction32 { 2058 u_int32_t sa_u; 2059 osigset_t sa_mask; 2060 int sa_flags; 2061 }; 2062 2063 #define ONSIG 32 2064 2065 int 2066 ofreebsd32_sigaction(struct thread *td, 2067 struct ofreebsd32_sigaction_args *uap) 2068 { 2069 struct osigaction32 s32; 2070 struct sigaction sa, osa, *sap; 2071 int error; 2072 2073 if (uap->signum <= 0 || uap->signum >= ONSIG) 2074 return (EINVAL); 2075 2076 if (uap->nsa) { 2077 error = copyin(uap->nsa, &s32, sizeof(s32)); 2078 if (error) 2079 return (error); 2080 sa.sa_handler = PTRIN(s32.sa_u); 2081 CP(s32, sa, sa_flags); 2082 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2083 sap = &sa; 2084 } else 2085 sap = NULL; 2086 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2087 if (error == 0 && uap->osa != NULL) { 2088 s32.sa_u = PTROUT(osa.sa_handler); 2089 CP(osa, s32, sa_flags); 2090 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2091 error = copyout(&s32, uap->osa, sizeof(s32)); 2092 } 2093 return (error); 2094 } 2095 2096 int 2097 ofreebsd32_sigprocmask(struct thread *td, 2098 struct ofreebsd32_sigprocmask_args *uap) 2099 { 2100 sigset_t set, oset; 2101 int error; 2102 2103 OSIG2SIG(uap->mask, set); 2104 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2105 SIG2OSIG(oset, td->td_retval[0]); 2106 return (error); 2107 } 2108 2109 int 2110 ofreebsd32_sigpending(struct thread *td, 2111 struct ofreebsd32_sigpending_args *uap) 2112 { 2113 struct proc *p = td->td_proc; 2114 sigset_t siglist; 2115 2116 PROC_LOCK(p); 2117 siglist = p->p_siglist; 2118 SIGSETOR(siglist, td->td_siglist); 2119 PROC_UNLOCK(p); 2120 SIG2OSIG(siglist, td->td_retval[0]); 2121 return (0); 2122 } 2123 2124 struct sigvec32 { 2125 u_int32_t sv_handler; 2126 int sv_mask; 2127 int sv_flags; 2128 }; 2129 2130 int 2131 ofreebsd32_sigvec(struct thread *td, 2132 struct ofreebsd32_sigvec_args *uap) 2133 { 2134 struct sigvec32 vec; 2135 struct sigaction sa, osa, *sap; 2136 int error; 2137 2138 if (uap->signum <= 0 || uap->signum >= ONSIG) 2139 return (EINVAL); 2140 2141 if (uap->nsv) { 2142 error = copyin(uap->nsv, &vec, sizeof(vec)); 2143 if (error) 2144 return (error); 2145 sa.sa_handler = PTRIN(vec.sv_handler); 2146 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2147 sa.sa_flags = vec.sv_flags; 2148 sa.sa_flags ^= SA_RESTART; 2149 sap = &sa; 2150 } else 2151 sap = NULL; 2152 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2153 if (error == 0 && uap->osv != NULL) { 2154 vec.sv_handler = PTROUT(osa.sa_handler); 2155 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2156 vec.sv_flags = osa.sa_flags; 2157 vec.sv_flags &= ~SA_NOCLDWAIT; 2158 vec.sv_flags ^= SA_RESTART; 2159 error = copyout(&vec, uap->osv, sizeof(vec)); 2160 } 2161 return (error); 2162 } 2163 2164 int 2165 ofreebsd32_sigblock(struct thread *td, 2166 struct ofreebsd32_sigblock_args *uap) 2167 { 2168 sigset_t set, oset; 2169 2170 OSIG2SIG(uap->mask, set); 2171 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2172 SIG2OSIG(oset, td->td_retval[0]); 2173 return (0); 2174 } 2175 2176 int 2177 ofreebsd32_sigsetmask(struct thread *td, 2178 struct ofreebsd32_sigsetmask_args *uap) 2179 { 2180 sigset_t set, oset; 2181 2182 OSIG2SIG(uap->mask, set); 2183 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2184 SIG2OSIG(oset, td->td_retval[0]); 2185 return (0); 2186 } 2187 2188 int 2189 ofreebsd32_sigsuspend(struct thread *td, 2190 struct ofreebsd32_sigsuspend_args *uap) 2191 { 2192 sigset_t mask; 2193 2194 OSIG2SIG(uap->mask, mask); 2195 return (kern_sigsuspend(td, mask)); 2196 } 2197 2198 struct sigstack32 { 2199 u_int32_t ss_sp; 2200 int ss_onstack; 2201 }; 2202 2203 int 2204 ofreebsd32_sigstack(struct thread *td, 2205 struct ofreebsd32_sigstack_args *uap) 2206 { 2207 struct sigstack32 s32; 2208 struct sigstack nss, oss; 2209 int error = 0, unss; 2210 2211 if (uap->nss != NULL) { 2212 error = copyin(uap->nss, &s32, sizeof(s32)); 2213 if (error) 2214 return (error); 2215 nss.ss_sp = PTRIN(s32.ss_sp); 2216 CP(s32, nss, ss_onstack); 2217 unss = 1; 2218 } else { 2219 unss = 0; 2220 } 2221 oss.ss_sp = td->td_sigstk.ss_sp; 2222 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2223 if (unss) { 2224 td->td_sigstk.ss_sp = nss.ss_sp; 2225 td->td_sigstk.ss_size = 0; 2226 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2227 td->td_pflags |= TDP_ALTSTACK; 2228 } 2229 if (uap->oss != NULL) { 2230 s32.ss_sp = PTROUT(oss.ss_sp); 2231 CP(oss, s32, ss_onstack); 2232 error = copyout(&s32, uap->oss, sizeof(s32)); 2233 } 2234 return (error); 2235 } 2236 #endif 2237 2238 int 2239 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2240 { 2241 struct timespec32 rmt32, rqt32; 2242 struct timespec rmt, rqt; 2243 int error; 2244 2245 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2246 if (error) 2247 return (error); 2248 2249 CP(rqt32, rqt, tv_sec); 2250 CP(rqt32, rqt, tv_nsec); 2251 2252 if (uap->rmtp && 2253 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2254 return (EFAULT); 2255 error = kern_nanosleep(td, &rqt, &rmt); 2256 if (error && uap->rmtp) { 2257 int error2; 2258 2259 CP(rmt, rmt32, tv_sec); 2260 CP(rmt, rmt32, tv_nsec); 2261 2262 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2263 if (error2) 2264 error = error2; 2265 } 2266 return (error); 2267 } 2268 2269 int 2270 freebsd32_clock_gettime(struct thread *td, 2271 struct freebsd32_clock_gettime_args *uap) 2272 { 2273 struct timespec ats; 2274 struct timespec32 ats32; 2275 int error; 2276 2277 error = kern_clock_gettime(td, uap->clock_id, &ats); 2278 if (error == 0) { 2279 CP(ats, ats32, tv_sec); 2280 CP(ats, ats32, tv_nsec); 2281 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2282 } 2283 return (error); 2284 } 2285 2286 int 2287 freebsd32_clock_settime(struct thread *td, 2288 struct freebsd32_clock_settime_args *uap) 2289 { 2290 struct timespec ats; 2291 struct timespec32 ats32; 2292 int error; 2293 2294 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2295 if (error) 2296 return (error); 2297 CP(ats32, ats, tv_sec); 2298 CP(ats32, ats, tv_nsec); 2299 2300 return (kern_clock_settime(td, uap->clock_id, &ats)); 2301 } 2302 2303 int 2304 freebsd32_clock_getres(struct thread *td, 2305 struct freebsd32_clock_getres_args *uap) 2306 { 2307 struct timespec ts; 2308 struct timespec32 ts32; 2309 int error; 2310 2311 if (uap->tp == NULL) 2312 return (0); 2313 error = kern_clock_getres(td, uap->clock_id, &ts); 2314 if (error == 0) { 2315 CP(ts, ts32, tv_sec); 2316 CP(ts, ts32, tv_nsec); 2317 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2318 } 2319 return (error); 2320 } 2321 2322 int 2323 freebsd32_ktimer_create(struct thread *td, 2324 struct freebsd32_ktimer_create_args *uap) 2325 { 2326 struct sigevent32 ev32; 2327 struct sigevent ev, *evp; 2328 int error, id; 2329 2330 if (uap->evp == NULL) { 2331 evp = NULL; 2332 } else { 2333 evp = &ev; 2334 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2335 if (error != 0) 2336 return (error); 2337 error = convert_sigevent32(&ev32, &ev); 2338 if (error != 0) 2339 return (error); 2340 } 2341 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2342 if (error == 0) { 2343 error = copyout(&id, uap->timerid, sizeof(int)); 2344 if (error != 0) 2345 kern_ktimer_delete(td, id); 2346 } 2347 return (error); 2348 } 2349 2350 int 2351 freebsd32_ktimer_settime(struct thread *td, 2352 struct freebsd32_ktimer_settime_args *uap) 2353 { 2354 struct itimerspec32 val32, oval32; 2355 struct itimerspec val, oval, *ovalp; 2356 int error; 2357 2358 error = copyin(uap->value, &val32, sizeof(val32)); 2359 if (error != 0) 2360 return (error); 2361 ITS_CP(val32, val); 2362 ovalp = uap->ovalue != NULL ? &oval : NULL; 2363 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2364 if (error == 0 && uap->ovalue != NULL) { 2365 ITS_CP(oval, oval32); 2366 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2367 } 2368 return (error); 2369 } 2370 2371 int 2372 freebsd32_ktimer_gettime(struct thread *td, 2373 struct freebsd32_ktimer_gettime_args *uap) 2374 { 2375 struct itimerspec32 val32; 2376 struct itimerspec val; 2377 int error; 2378 2379 error = kern_ktimer_gettime(td, uap->timerid, &val); 2380 if (error == 0) { 2381 ITS_CP(val, val32); 2382 error = copyout(&val32, uap->value, sizeof(val32)); 2383 } 2384 return (error); 2385 } 2386 2387 int 2388 freebsd32_clock_getcpuclockid2(struct thread *td, 2389 struct freebsd32_clock_getcpuclockid2_args *uap) 2390 { 2391 clockid_t clk_id; 2392 int error; 2393 2394 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2395 uap->which, &clk_id); 2396 if (error == 0) 2397 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2398 return (error); 2399 } 2400 2401 int 2402 freebsd32_thr_new(struct thread *td, 2403 struct freebsd32_thr_new_args *uap) 2404 { 2405 struct thr_param32 param32; 2406 struct thr_param param; 2407 int error; 2408 2409 if (uap->param_size < 0 || 2410 uap->param_size > sizeof(struct thr_param32)) 2411 return (EINVAL); 2412 bzero(¶m, sizeof(struct thr_param)); 2413 bzero(¶m32, sizeof(struct thr_param32)); 2414 error = copyin(uap->param, ¶m32, uap->param_size); 2415 if (error != 0) 2416 return (error); 2417 param.start_func = PTRIN(param32.start_func); 2418 param.arg = PTRIN(param32.arg); 2419 param.stack_base = PTRIN(param32.stack_base); 2420 param.stack_size = param32.stack_size; 2421 param.tls_base = PTRIN(param32.tls_base); 2422 param.tls_size = param32.tls_size; 2423 param.child_tid = PTRIN(param32.child_tid); 2424 param.parent_tid = PTRIN(param32.parent_tid); 2425 param.flags = param32.flags; 2426 param.rtp = PTRIN(param32.rtp); 2427 param.spare[0] = PTRIN(param32.spare[0]); 2428 param.spare[1] = PTRIN(param32.spare[1]); 2429 param.spare[2] = PTRIN(param32.spare[2]); 2430 2431 return (kern_thr_new(td, ¶m)); 2432 } 2433 2434 int 2435 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2436 { 2437 struct timespec32 ts32; 2438 struct timespec ts, *tsp; 2439 int error; 2440 2441 error = 0; 2442 tsp = NULL; 2443 if (uap->timeout != NULL) { 2444 error = copyin((const void *)uap->timeout, (void *)&ts32, 2445 sizeof(struct timespec32)); 2446 if (error != 0) 2447 return (error); 2448 ts.tv_sec = ts32.tv_sec; 2449 ts.tv_nsec = ts32.tv_nsec; 2450 tsp = &ts; 2451 } 2452 return (kern_thr_suspend(td, tsp)); 2453 } 2454 2455 void 2456 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2457 { 2458 bzero(dst, sizeof(*dst)); 2459 dst->si_signo = src->si_signo; 2460 dst->si_errno = src->si_errno; 2461 dst->si_code = src->si_code; 2462 dst->si_pid = src->si_pid; 2463 dst->si_uid = src->si_uid; 2464 dst->si_status = src->si_status; 2465 dst->si_addr = (uintptr_t)src->si_addr; 2466 dst->si_value.sival_int = src->si_value.sival_int; 2467 dst->si_timerid = src->si_timerid; 2468 dst->si_overrun = src->si_overrun; 2469 } 2470 2471 int 2472 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2473 { 2474 struct timespec32 ts32; 2475 struct timespec ts; 2476 struct timespec *timeout; 2477 sigset_t set; 2478 ksiginfo_t ksi; 2479 struct siginfo32 si32; 2480 int error; 2481 2482 if (uap->timeout) { 2483 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2484 if (error) 2485 return (error); 2486 ts.tv_sec = ts32.tv_sec; 2487 ts.tv_nsec = ts32.tv_nsec; 2488 timeout = &ts; 2489 } else 2490 timeout = NULL; 2491 2492 error = copyin(uap->set, &set, sizeof(set)); 2493 if (error) 2494 return (error); 2495 2496 error = kern_sigtimedwait(td, set, &ksi, timeout); 2497 if (error) 2498 return (error); 2499 2500 if (uap->info) { 2501 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2502 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2503 } 2504 2505 if (error == 0) 2506 td->td_retval[0] = ksi.ksi_signo; 2507 return (error); 2508 } 2509 2510 /* 2511 * MPSAFE 2512 */ 2513 int 2514 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2515 { 2516 ksiginfo_t ksi; 2517 struct siginfo32 si32; 2518 sigset_t set; 2519 int error; 2520 2521 error = copyin(uap->set, &set, sizeof(set)); 2522 if (error) 2523 return (error); 2524 2525 error = kern_sigtimedwait(td, set, &ksi, NULL); 2526 if (error) 2527 return (error); 2528 2529 if (uap->info) { 2530 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2531 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2532 } 2533 if (error == 0) 2534 td->td_retval[0] = ksi.ksi_signo; 2535 return (error); 2536 } 2537 2538 int 2539 freebsd32_cpuset_setid(struct thread *td, 2540 struct freebsd32_cpuset_setid_args *uap) 2541 { 2542 struct cpuset_setid_args ap; 2543 2544 ap.which = uap->which; 2545 ap.id = PAIR32TO64(id_t,uap->id); 2546 ap.setid = uap->setid; 2547 2548 return (sys_cpuset_setid(td, &ap)); 2549 } 2550 2551 int 2552 freebsd32_cpuset_getid(struct thread *td, 2553 struct freebsd32_cpuset_getid_args *uap) 2554 { 2555 struct cpuset_getid_args ap; 2556 2557 ap.level = uap->level; 2558 ap.which = uap->which; 2559 ap.id = PAIR32TO64(id_t,uap->id); 2560 ap.setid = uap->setid; 2561 2562 return (sys_cpuset_getid(td, &ap)); 2563 } 2564 2565 int 2566 freebsd32_cpuset_getaffinity(struct thread *td, 2567 struct freebsd32_cpuset_getaffinity_args *uap) 2568 { 2569 struct cpuset_getaffinity_args ap; 2570 2571 ap.level = uap->level; 2572 ap.which = uap->which; 2573 ap.id = PAIR32TO64(id_t,uap->id); 2574 ap.cpusetsize = uap->cpusetsize; 2575 ap.mask = uap->mask; 2576 2577 return (sys_cpuset_getaffinity(td, &ap)); 2578 } 2579 2580 int 2581 freebsd32_cpuset_setaffinity(struct thread *td, 2582 struct freebsd32_cpuset_setaffinity_args *uap) 2583 { 2584 struct cpuset_setaffinity_args ap; 2585 2586 ap.level = uap->level; 2587 ap.which = uap->which; 2588 ap.id = PAIR32TO64(id_t,uap->id); 2589 ap.cpusetsize = uap->cpusetsize; 2590 ap.mask = uap->mask; 2591 2592 return (sys_cpuset_setaffinity(td, &ap)); 2593 } 2594 2595 int 2596 freebsd32_nmount(struct thread *td, 2597 struct freebsd32_nmount_args /* { 2598 struct iovec *iovp; 2599 unsigned int iovcnt; 2600 int flags; 2601 } */ *uap) 2602 { 2603 struct uio *auio; 2604 uint64_t flags; 2605 int error; 2606 2607 /* 2608 * Mount flags are now 64-bits. On 32-bit archtectures only 2609 * 32-bits are passed in, but from here on everything handles 2610 * 64-bit flags correctly. 2611 */ 2612 flags = uap->flags; 2613 2614 AUDIT_ARG_FFLAGS(flags); 2615 2616 /* 2617 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2618 * userspace to set this flag, but we must filter it out if we want 2619 * MNT_UPDATE on the root file system to work. 2620 * MNT_ROOTFS should only be set by the kernel when mounting its 2621 * root file system. 2622 */ 2623 flags &= ~MNT_ROOTFS; 2624 2625 /* 2626 * check that we have an even number of iovec's 2627 * and that we have at least two options. 2628 */ 2629 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2630 return (EINVAL); 2631 2632 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2633 if (error) 2634 return (error); 2635 error = vfs_donmount(td, flags, auio); 2636 2637 free(auio, M_IOV); 2638 return error; 2639 } 2640 2641 #if 0 2642 int 2643 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2644 { 2645 struct yyy32 *p32, s32; 2646 struct yyy *p = NULL, s; 2647 struct xxx_arg ap; 2648 int error; 2649 2650 if (uap->zzz) { 2651 error = copyin(uap->zzz, &s32, sizeof(s32)); 2652 if (error) 2653 return (error); 2654 /* translate in */ 2655 p = &s; 2656 } 2657 error = kern_xxx(td, p); 2658 if (error) 2659 return (error); 2660 if (uap->zzz) { 2661 /* translate out */ 2662 error = copyout(&s32, p32, sizeof(s32)); 2663 } 2664 return (error); 2665 } 2666 #endif 2667 2668 int 2669 syscall32_register(int *offset, struct sysent *new_sysent, 2670 struct sysent *old_sysent) 2671 { 2672 if (*offset == NO_SYSCALL) { 2673 int i; 2674 2675 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2676 if (freebsd32_sysent[i].sy_call == 2677 (sy_call_t *)lkmnosys) 2678 break; 2679 if (i == SYS_MAXSYSCALL) 2680 return (ENFILE); 2681 *offset = i; 2682 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2683 return (EINVAL); 2684 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2685 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2686 return (EEXIST); 2687 2688 *old_sysent = freebsd32_sysent[*offset]; 2689 freebsd32_sysent[*offset] = *new_sysent; 2690 return 0; 2691 } 2692 2693 int 2694 syscall32_deregister(int *offset, struct sysent *old_sysent) 2695 { 2696 2697 if (*offset) 2698 freebsd32_sysent[*offset] = *old_sysent; 2699 return 0; 2700 } 2701 2702 int 2703 syscall32_module_handler(struct module *mod, int what, void *arg) 2704 { 2705 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2706 modspecific_t ms; 2707 int error; 2708 2709 switch (what) { 2710 case MOD_LOAD: 2711 error = syscall32_register(data->offset, data->new_sysent, 2712 &data->old_sysent); 2713 if (error) { 2714 /* Leave a mark so we know to safely unload below. */ 2715 data->offset = NULL; 2716 return error; 2717 } 2718 ms.intval = *data->offset; 2719 MOD_XLOCK; 2720 module_setspecific(mod, &ms); 2721 MOD_XUNLOCK; 2722 if (data->chainevh) 2723 error = data->chainevh(mod, what, data->chainarg); 2724 return (error); 2725 case MOD_UNLOAD: 2726 /* 2727 * MOD_LOAD failed, so just return without calling the 2728 * chained handler since we didn't pass along the MOD_LOAD 2729 * event. 2730 */ 2731 if (data->offset == NULL) 2732 return (0); 2733 if (data->chainevh) { 2734 error = data->chainevh(mod, what, data->chainarg); 2735 if (error) 2736 return (error); 2737 } 2738 error = syscall32_deregister(data->offset, &data->old_sysent); 2739 return (error); 2740 default: 2741 error = EOPNOTSUPP; 2742 if (data->chainevh) 2743 error = data->chainevh(mod, what, data->chainarg); 2744 return (error); 2745 } 2746 } 2747 2748 int 2749 syscall32_helper_register(struct syscall_helper_data *sd) 2750 { 2751 struct syscall_helper_data *sd1; 2752 int error; 2753 2754 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2755 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2756 &sd1->old_sysent); 2757 if (error != 0) { 2758 syscall32_helper_unregister(sd); 2759 return (error); 2760 } 2761 sd1->registered = 1; 2762 } 2763 return (0); 2764 } 2765 2766 int 2767 syscall32_helper_unregister(struct syscall_helper_data *sd) 2768 { 2769 struct syscall_helper_data *sd1; 2770 2771 for (sd1 = sd; sd1->registered != 0; sd1++) { 2772 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2773 sd1->registered = 0; 2774 } 2775 return (0); 2776 } 2777 2778 register_t * 2779 freebsd32_copyout_strings(struct image_params *imgp) 2780 { 2781 int argc, envc, i; 2782 u_int32_t *vectp; 2783 char *stringp; 2784 uintptr_t destp; 2785 u_int32_t *stack_base; 2786 struct freebsd32_ps_strings *arginfo; 2787 char canary[sizeof(long) * 8]; 2788 int32_t pagesizes32[MAXPAGESIZES]; 2789 size_t execpath_len; 2790 int szsigcode; 2791 2792 /* 2793 * Calculate string base and vector table pointers. 2794 * Also deal with signal trampoline code for this exec type. 2795 */ 2796 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2797 execpath_len = strlen(imgp->execpath) + 1; 2798 else 2799 execpath_len = 0; 2800 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2801 sv_psstrings; 2802 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2803 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2804 else 2805 szsigcode = 0; 2806 destp = (uintptr_t)arginfo; 2807 2808 /* 2809 * install sigcode 2810 */ 2811 if (szsigcode != 0) { 2812 destp -= szsigcode; 2813 destp = rounddown2(destp, sizeof(uint32_t)); 2814 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2815 szsigcode); 2816 } 2817 2818 /* 2819 * Copy the image path for the rtld. 2820 */ 2821 if (execpath_len != 0) { 2822 destp -= execpath_len; 2823 imgp->execpathp = destp; 2824 copyout(imgp->execpath, (void *)destp, execpath_len); 2825 } 2826 2827 /* 2828 * Prepare the canary for SSP. 2829 */ 2830 arc4rand(canary, sizeof(canary), 0); 2831 destp -= sizeof(canary); 2832 imgp->canary = destp; 2833 copyout(canary, (void *)destp, sizeof(canary)); 2834 imgp->canarylen = sizeof(canary); 2835 2836 /* 2837 * Prepare the pagesizes array. 2838 */ 2839 for (i = 0; i < MAXPAGESIZES; i++) 2840 pagesizes32[i] = (uint32_t)pagesizes[i]; 2841 destp -= sizeof(pagesizes32); 2842 destp = rounddown2(destp, sizeof(uint32_t)); 2843 imgp->pagesizes = destp; 2844 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2845 imgp->pagesizeslen = sizeof(pagesizes32); 2846 2847 destp -= ARG_MAX - imgp->args->stringspace; 2848 destp = rounddown2(destp, sizeof(uint32_t)); 2849 2850 /* 2851 * If we have a valid auxargs ptr, prepare some room 2852 * on the stack. 2853 */ 2854 if (imgp->auxargs) { 2855 /* 2856 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2857 * lower compatibility. 2858 */ 2859 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2860 : (AT_COUNT * 2); 2861 /* 2862 * The '+ 2' is for the null pointers at the end of each of 2863 * the arg and env vector sets,and imgp->auxarg_size is room 2864 * for argument of Runtime loader. 2865 */ 2866 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2867 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2868 sizeof(u_int32_t)); 2869 } else { 2870 /* 2871 * The '+ 2' is for the null pointers at the end of each of 2872 * the arg and env vector sets 2873 */ 2874 vectp = (u_int32_t *)(destp - (imgp->args->argc + 2875 imgp->args->envc + 2) * sizeof(u_int32_t)); 2876 } 2877 2878 /* 2879 * vectp also becomes our initial stack base 2880 */ 2881 stack_base = vectp; 2882 2883 stringp = imgp->args->begin_argv; 2884 argc = imgp->args->argc; 2885 envc = imgp->args->envc; 2886 /* 2887 * Copy out strings - arguments and environment. 2888 */ 2889 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2890 2891 /* 2892 * Fill in "ps_strings" struct for ps, w, etc. 2893 */ 2894 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2895 suword32(&arginfo->ps_nargvstr, argc); 2896 2897 /* 2898 * Fill in argument portion of vector table. 2899 */ 2900 for (; argc > 0; --argc) { 2901 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2902 while (*stringp++ != 0) 2903 destp++; 2904 destp++; 2905 } 2906 2907 /* a null vector table pointer separates the argp's from the envp's */ 2908 suword32(vectp++, 0); 2909 2910 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2911 suword32(&arginfo->ps_nenvstr, envc); 2912 2913 /* 2914 * Fill in environment portion of vector table. 2915 */ 2916 for (; envc > 0; --envc) { 2917 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2918 while (*stringp++ != 0) 2919 destp++; 2920 destp++; 2921 } 2922 2923 /* end of vector table is a null pointer */ 2924 suword32(vectp, 0); 2925 2926 return ((register_t *)stack_base); 2927 } 2928 2929 int 2930 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2931 { 2932 struct kld_file_stat stat; 2933 struct kld32_file_stat stat32; 2934 int error, version; 2935 2936 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2937 != 0) 2938 return (error); 2939 if (version != sizeof(struct kld32_file_stat_1) && 2940 version != sizeof(struct kld32_file_stat)) 2941 return (EINVAL); 2942 2943 error = kern_kldstat(td, uap->fileid, &stat); 2944 if (error != 0) 2945 return (error); 2946 2947 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name)); 2948 CP(stat, stat32, refs); 2949 CP(stat, stat32, id); 2950 PTROUT_CP(stat, stat32, address); 2951 CP(stat, stat32, size); 2952 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname)); 2953 return (copyout(&stat32, uap->stat, version)); 2954 } 2955 2956 int 2957 freebsd32_posix_fallocate(struct thread *td, 2958 struct freebsd32_posix_fallocate_args *uap) 2959 { 2960 2961 td->td_retval[0] = kern_posix_fallocate(td, uap->fd, 2962 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 2963 return (0); 2964 } 2965 2966 int 2967 freebsd32_posix_fadvise(struct thread *td, 2968 struct freebsd32_posix_fadvise_args *uap) 2969 { 2970 2971 td->td_retval[0] = kern_posix_fadvise(td, uap->fd, 2972 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len), 2973 uap->advice); 2974 return (0); 2975 } 2976 2977 int 2978 convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 2979 { 2980 2981 CP(*sig32, *sig, sigev_notify); 2982 switch (sig->sigev_notify) { 2983 case SIGEV_NONE: 2984 break; 2985 case SIGEV_THREAD_ID: 2986 CP(*sig32, *sig, sigev_notify_thread_id); 2987 /* FALLTHROUGH */ 2988 case SIGEV_SIGNAL: 2989 CP(*sig32, *sig, sigev_signo); 2990 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 2991 break; 2992 case SIGEV_KEVENT: 2993 CP(*sig32, *sig, sigev_notify_kqueue); 2994 CP(*sig32, *sig, sigev_notify_kevent_flags); 2995 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 2996 break; 2997 default: 2998 return (EINVAL); 2999 } 3000 return (0); 3001 } 3002 3003 int 3004 freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3005 { 3006 void *data; 3007 int error, flags; 3008 3009 switch (uap->com) { 3010 case PROC_SPROTECT: 3011 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3012 if (error) 3013 return (error); 3014 data = &flags; 3015 break; 3016 default: 3017 return (EINVAL); 3018 } 3019 return (kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3020 uap->com, data)); 3021 }
Cache object: 64952d44354e7cc4eecba707864739eb
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