freebsd32_misc.c revision 264164
1/*- 2 * Copyright (c) 2002 Doug Rabson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: head/sys/compat/freebsd32/freebsd32_misc.c 264164 2014-04-05 18:56:01Z marcel $"); 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/capsicum.h> 39#include <sys/clock.h> 40#include <sys/exec.h> 41#include <sys/fcntl.h> 42#include <sys/filedesc.h> 43#include <sys/imgact.h> 44#include <sys/jail.h> 45#include <sys/kernel.h> 46#include <sys/limits.h> 47#include <sys/linker.h> 48#include <sys/lock.h> 49#include <sys/malloc.h> 50#include <sys/file.h> /* Must come after sys/malloc.h */ 51#include <sys/imgact.h> 52#include <sys/mbuf.h> 53#include <sys/mman.h> 54#include <sys/module.h> 55#include <sys/mount.h> 56#include <sys/mutex.h> 57#include <sys/namei.h> 58#include <sys/proc.h> 59#include <sys/procctl.h> 60#include <sys/reboot.h> 61#include <sys/resource.h> 62#include <sys/resourcevar.h> 63#include <sys/selinfo.h> 64#include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 65#include <sys/pipe.h> /* Must come after sys/selinfo.h */ 66#include <sys/signal.h> 67#include <sys/signalvar.h> 68#include <sys/socket.h> 69#include <sys/socketvar.h> 70#include <sys/stat.h> 71#include <sys/syscall.h> 72#include <sys/syscallsubr.h> 73#include <sys/sysctl.h> 74#include <sys/sysent.h> 75#include <sys/sysproto.h> 76#include <sys/systm.h> 77#include <sys/thr.h> 78#include <sys/unistd.h> 79#include <sys/ucontext.h> 80#include <sys/vnode.h> 81#include <sys/wait.h> 82#include <sys/ipc.h> 83#include <sys/msg.h> 84#include <sys/sem.h> 85#include <sys/shm.h> 86#include <sys/condvar.h> 87#include <sys/sf_buf.h> 88#include <sys/sf_sync.h> 89#include <sys/sf_base.h> 90 91#ifdef INET 92#include <netinet/in.h> 93#endif 94 95#include <vm/vm.h> 96#include <vm/vm_param.h> 97#include <vm/pmap.h> 98#include <vm/vm_map.h> 99#include <vm/vm_object.h> 100#include <vm/vm_extern.h> 101 102#include <machine/cpu.h> 103#include <machine/elf.h> 104 105#include <security/audit/audit.h> 106 107#include <compat/freebsd32/freebsd32_util.h> 108#include <compat/freebsd32/freebsd32.h> 109#include <compat/freebsd32/freebsd32_ipc.h> 110#include <compat/freebsd32/freebsd32_misc.h> 111#include <compat/freebsd32/freebsd32_signal.h> 112#include <compat/freebsd32/freebsd32_proto.h> 113 114FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD"); 115 116#ifndef __mips__ 117CTASSERT(sizeof(struct timeval32) == 8); 118CTASSERT(sizeof(struct timespec32) == 8); 119CTASSERT(sizeof(struct itimerval32) == 16); 120#endif 121CTASSERT(sizeof(struct statfs32) == 256); 122#ifndef __mips__ 123CTASSERT(sizeof(struct rusage32) == 72); 124#endif 125CTASSERT(sizeof(struct sigaltstack32) == 12); 126CTASSERT(sizeof(struct kevent32) == 20); 127CTASSERT(sizeof(struct iovec32) == 8); 128CTASSERT(sizeof(struct msghdr32) == 28); 129#ifndef __mips__ 130CTASSERT(sizeof(struct stat32) == 96); 131#endif 132CTASSERT(sizeof(struct sigaction32) == 24); 133 134static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 135static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 136 137void 138freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 139{ 140 141 TV_CP(*s, *s32, ru_utime); 142 TV_CP(*s, *s32, ru_stime); 143 CP(*s, *s32, ru_maxrss); 144 CP(*s, *s32, ru_ixrss); 145 CP(*s, *s32, ru_idrss); 146 CP(*s, *s32, ru_isrss); 147 CP(*s, *s32, ru_minflt); 148 CP(*s, *s32, ru_majflt); 149 CP(*s, *s32, ru_nswap); 150 CP(*s, *s32, ru_inblock); 151 CP(*s, *s32, ru_oublock); 152 CP(*s, *s32, ru_msgsnd); 153 CP(*s, *s32, ru_msgrcv); 154 CP(*s, *s32, ru_nsignals); 155 CP(*s, *s32, ru_nvcsw); 156 CP(*s, *s32, ru_nivcsw); 157} 158 159int 160freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 161{ 162 int error, status; 163 struct rusage32 ru32; 164 struct rusage ru, *rup; 165 166 if (uap->rusage != NULL) 167 rup = &ru; 168 else 169 rup = NULL; 170 error = kern_wait(td, uap->pid, &status, uap->options, rup); 171 if (error) 172 return (error); 173 if (uap->status != NULL) 174 error = copyout(&status, uap->status, sizeof(status)); 175 if (uap->rusage != NULL && error == 0) { 176 freebsd32_rusage_out(&ru, &ru32); 177 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 178 } 179 return (error); 180} 181 182int 183freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap) 184{ 185 struct wrusage32 wru32; 186 struct __wrusage wru, *wrup; 187 struct siginfo32 si32; 188 struct __siginfo si, *sip; 189 int error, status; 190 191 if (uap->wrusage != NULL) 192 wrup = &wru; 193 else 194 wrup = NULL; 195 if (uap->info != NULL) { 196 sip = &si; 197 bzero(sip, sizeof(*sip)); 198 } else 199 sip = NULL; 200 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id), 201 &status, uap->options, wrup, sip); 202 if (error != 0) 203 return (error); 204 if (uap->status != NULL) 205 error = copyout(&status, uap->status, sizeof(status)); 206 if (uap->wrusage != NULL && error == 0) { 207 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self); 208 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children); 209 error = copyout(&wru32, uap->wrusage, sizeof(wru32)); 210 } 211 if (uap->info != NULL && error == 0) { 212 siginfo_to_siginfo32 (&si, &si32); 213 error = copyout(&si32, uap->info, sizeof(si32)); 214 } 215 return (error); 216} 217 218#ifdef COMPAT_FREEBSD4 219static void 220copy_statfs(struct statfs *in, struct statfs32 *out) 221{ 222 223 statfs_scale_blocks(in, INT32_MAX); 224 bzero(out, sizeof(*out)); 225 CP(*in, *out, f_bsize); 226 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 227 CP(*in, *out, f_blocks); 228 CP(*in, *out, f_bfree); 229 CP(*in, *out, f_bavail); 230 out->f_files = MIN(in->f_files, INT32_MAX); 231 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 232 CP(*in, *out, f_fsid); 233 CP(*in, *out, f_owner); 234 CP(*in, *out, f_type); 235 CP(*in, *out, f_flags); 236 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 237 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 238 strlcpy(out->f_fstypename, 239 in->f_fstypename, MFSNAMELEN); 240 strlcpy(out->f_mntonname, 241 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 242 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 243 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 244 strlcpy(out->f_mntfromname, 245 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 246} 247#endif 248 249#ifdef COMPAT_FREEBSD4 250int 251freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 252{ 253 struct statfs *buf, *sp; 254 struct statfs32 stat32; 255 size_t count, size; 256 int error; 257 258 count = uap->bufsize / sizeof(struct statfs32); 259 size = count * sizeof(struct statfs); 260 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags); 261 if (size > 0) { 262 count = td->td_retval[0]; 263 sp = buf; 264 while (count > 0 && error == 0) { 265 copy_statfs(sp, &stat32); 266 error = copyout(&stat32, uap->buf, sizeof(stat32)); 267 sp++; 268 uap->buf++; 269 count--; 270 } 271 free(buf, M_TEMP); 272 } 273 return (error); 274} 275#endif 276 277int 278freebsd32_sigaltstack(struct thread *td, 279 struct freebsd32_sigaltstack_args *uap) 280{ 281 struct sigaltstack32 s32; 282 struct sigaltstack ss, oss, *ssp; 283 int error; 284 285 if (uap->ss != NULL) { 286 error = copyin(uap->ss, &s32, sizeof(s32)); 287 if (error) 288 return (error); 289 PTRIN_CP(s32, ss, ss_sp); 290 CP(s32, ss, ss_size); 291 CP(s32, ss, ss_flags); 292 ssp = &ss; 293 } else 294 ssp = NULL; 295 error = kern_sigaltstack(td, ssp, &oss); 296 if (error == 0 && uap->oss != NULL) { 297 PTROUT_CP(oss, s32, ss_sp); 298 CP(oss, s32, ss_size); 299 CP(oss, s32, ss_flags); 300 error = copyout(&s32, uap->oss, sizeof(s32)); 301 } 302 return (error); 303} 304 305/* 306 * Custom version of exec_copyin_args() so that we can translate 307 * the pointers. 308 */ 309int 310freebsd32_exec_copyin_args(struct image_args *args, char *fname, 311 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 312{ 313 char *argp, *envp; 314 u_int32_t *p32, arg; 315 size_t length; 316 int error; 317 318 bzero(args, sizeof(*args)); 319 if (argv == NULL) 320 return (EFAULT); 321 322 /* 323 * Allocate demand-paged memory for the file name, argument, and 324 * environment strings. 325 */ 326 error = exec_alloc_args(args); 327 if (error != 0) 328 return (error); 329 330 /* 331 * Copy the file name. 332 */ 333 if (fname != NULL) { 334 args->fname = args->buf; 335 error = (segflg == UIO_SYSSPACE) ? 336 copystr(fname, args->fname, PATH_MAX, &length) : 337 copyinstr(fname, args->fname, PATH_MAX, &length); 338 if (error != 0) 339 goto err_exit; 340 } else 341 length = 0; 342 343 args->begin_argv = args->buf + length; 344 args->endp = args->begin_argv; 345 args->stringspace = ARG_MAX; 346 347 /* 348 * extract arguments first 349 */ 350 p32 = argv; 351 for (;;) { 352 error = copyin(p32++, &arg, sizeof(arg)); 353 if (error) 354 goto err_exit; 355 if (arg == 0) 356 break; 357 argp = PTRIN(arg); 358 error = copyinstr(argp, args->endp, args->stringspace, &length); 359 if (error) { 360 if (error == ENAMETOOLONG) 361 error = E2BIG; 362 goto err_exit; 363 } 364 args->stringspace -= length; 365 args->endp += length; 366 args->argc++; 367 } 368 369 args->begin_envv = args->endp; 370 371 /* 372 * extract environment strings 373 */ 374 if (envv) { 375 p32 = envv; 376 for (;;) { 377 error = copyin(p32++, &arg, sizeof(arg)); 378 if (error) 379 goto err_exit; 380 if (arg == 0) 381 break; 382 envp = PTRIN(arg); 383 error = copyinstr(envp, args->endp, args->stringspace, 384 &length); 385 if (error) { 386 if (error == ENAMETOOLONG) 387 error = E2BIG; 388 goto err_exit; 389 } 390 args->stringspace -= length; 391 args->endp += length; 392 args->envc++; 393 } 394 } 395 396 return (0); 397 398err_exit: 399 exec_free_args(args); 400 return (error); 401} 402 403int 404freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 405{ 406 struct image_args eargs; 407 int error; 408 409 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 410 uap->argv, uap->envv); 411 if (error == 0) 412 error = kern_execve(td, &eargs, NULL); 413 return (error); 414} 415 416int 417freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 418{ 419 struct image_args eargs; 420 int error; 421 422 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 423 uap->argv, uap->envv); 424 if (error == 0) { 425 eargs.fd = uap->fd; 426 error = kern_execve(td, &eargs, NULL); 427 } 428 return (error); 429} 430 431#ifdef __ia64__ 432static int 433freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 434 int prot, int fd, off_t pos) 435{ 436 vm_map_t map; 437 vm_map_entry_t entry; 438 int rv; 439 440 map = &td->td_proc->p_vmspace->vm_map; 441 if (fd != -1) 442 prot |= VM_PROT_WRITE; 443 444 if (vm_map_lookup_entry(map, start, &entry)) { 445 if ((entry->protection & prot) != prot) { 446 rv = vm_map_protect(map, 447 trunc_page(start), 448 round_page(end), 449 entry->protection | prot, 450 FALSE); 451 if (rv != KERN_SUCCESS) 452 return (EINVAL); 453 } 454 } else { 455 vm_offset_t addr = trunc_page(start); 456 rv = vm_map_find(map, NULL, 0, &addr, PAGE_SIZE, 0, 457 VMFS_NO_SPACE, prot, VM_PROT_ALL, 0); 458 if (rv != KERN_SUCCESS) 459 return (EINVAL); 460 } 461 462 if (fd != -1) { 463 struct pread_args r; 464 r.fd = fd; 465 r.buf = (void *) start; 466 r.nbyte = end - start; 467 r.offset = pos; 468 return (sys_pread(td, &r)); 469 } else { 470 while (start < end) { 471 subyte((void *) start, 0); 472 start++; 473 } 474 return (0); 475 } 476} 477#endif 478 479int 480freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 481{ 482 struct mprotect_args ap; 483 484 ap.addr = PTRIN(uap->addr); 485 ap.len = uap->len; 486 ap.prot = uap->prot; 487#if defined(__amd64__) || defined(__ia64__) 488 if (i386_read_exec && (ap.prot & PROT_READ) != 0) 489 ap.prot |= PROT_EXEC; 490#endif 491 return (sys_mprotect(td, &ap)); 492} 493 494int 495freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 496{ 497 struct mmap_args ap; 498 vm_offset_t addr = (vm_offset_t) uap->addr; 499 vm_size_t len = uap->len; 500 int prot = uap->prot; 501 int flags = uap->flags; 502 int fd = uap->fd; 503 off_t pos = PAIR32TO64(off_t,uap->pos); 504#ifdef __ia64__ 505 vm_size_t pageoff; 506 int error; 507 508 /* 509 * Attempt to handle page size hassles. 510 */ 511 pageoff = (pos & PAGE_MASK); 512 if (flags & MAP_FIXED) { 513 vm_offset_t start, end; 514 start = addr; 515 end = addr + len; 516 517 if (start != trunc_page(start)) { 518 error = freebsd32_mmap_partial(td, start, 519 round_page(start), prot, 520 fd, pos); 521 if (fd != -1) 522 pos += round_page(start) - start; 523 start = round_page(start); 524 } 525 if (end != round_page(end)) { 526 vm_offset_t t = trunc_page(end); 527 error = freebsd32_mmap_partial(td, t, end, 528 prot, fd, 529 pos + t - start); 530 end = trunc_page(end); 531 } 532 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 533 /* 534 * We can't map this region at all. The specified 535 * address doesn't have the same alignment as the file 536 * position. Fake the mapping by simply reading the 537 * entire region into memory. First we need to make 538 * sure the region exists. 539 */ 540 vm_map_t map; 541 struct pread_args r; 542 int rv; 543 544 prot |= VM_PROT_WRITE; 545 map = &td->td_proc->p_vmspace->vm_map; 546 rv = vm_map_remove(map, start, end); 547 if (rv != KERN_SUCCESS) 548 return (EINVAL); 549 rv = vm_map_find(map, NULL, 0, &start, end - start, 550 0, VMFS_NO_SPACE, prot, VM_PROT_ALL, 0); 551 if (rv != KERN_SUCCESS) 552 return (EINVAL); 553 r.fd = fd; 554 r.buf = (void *) start; 555 r.nbyte = end - start; 556 r.offset = pos; 557 error = sys_pread(td, &r); 558 if (error) 559 return (error); 560 561 td->td_retval[0] = addr; 562 return (0); 563 } 564 if (end == start) { 565 /* 566 * After dealing with the ragged ends, there 567 * might be none left. 568 */ 569 td->td_retval[0] = addr; 570 return (0); 571 } 572 addr = start; 573 len = end - start; 574 } 575#endif 576 577#if defined(__amd64__) || defined(__ia64__) 578 if (i386_read_exec && (prot & PROT_READ)) 579 prot |= PROT_EXEC; 580#endif 581 582 ap.addr = (void *) addr; 583 ap.len = len; 584 ap.prot = prot; 585 ap.flags = flags; 586 ap.fd = fd; 587 ap.pos = pos; 588 589 return (sys_mmap(td, &ap)); 590} 591 592#ifdef COMPAT_FREEBSD6 593int 594freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 595{ 596 struct freebsd32_mmap_args ap; 597 598 ap.addr = uap->addr; 599 ap.len = uap->len; 600 ap.prot = uap->prot; 601 ap.flags = uap->flags; 602 ap.fd = uap->fd; 603 ap.pos1 = uap->pos1; 604 ap.pos2 = uap->pos2; 605 606 return (freebsd32_mmap(td, &ap)); 607} 608#endif 609 610int 611freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 612{ 613 struct itimerval itv, oitv, *itvp; 614 struct itimerval32 i32; 615 int error; 616 617 if (uap->itv != NULL) { 618 error = copyin(uap->itv, &i32, sizeof(i32)); 619 if (error) 620 return (error); 621 TV_CP(i32, itv, it_interval); 622 TV_CP(i32, itv, it_value); 623 itvp = &itv; 624 } else 625 itvp = NULL; 626 error = kern_setitimer(td, uap->which, itvp, &oitv); 627 if (error || uap->oitv == NULL) 628 return (error); 629 TV_CP(oitv, i32, it_interval); 630 TV_CP(oitv, i32, it_value); 631 return (copyout(&i32, uap->oitv, sizeof(i32))); 632} 633 634int 635freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 636{ 637 struct itimerval itv; 638 struct itimerval32 i32; 639 int error; 640 641 error = kern_getitimer(td, uap->which, &itv); 642 if (error || uap->itv == NULL) 643 return (error); 644 TV_CP(itv, i32, it_interval); 645 TV_CP(itv, i32, it_value); 646 return (copyout(&i32, uap->itv, sizeof(i32))); 647} 648 649int 650freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 651{ 652 struct timeval32 tv32; 653 struct timeval tv, *tvp; 654 int error; 655 656 if (uap->tv != NULL) { 657 error = copyin(uap->tv, &tv32, sizeof(tv32)); 658 if (error) 659 return (error); 660 CP(tv32, tv, tv_sec); 661 CP(tv32, tv, tv_usec); 662 tvp = &tv; 663 } else 664 tvp = NULL; 665 /* 666 * XXX Do pointers need PTRIN()? 667 */ 668 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 669 sizeof(int32_t) * 8)); 670} 671 672int 673freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 674{ 675 struct timespec32 ts32; 676 struct timespec ts; 677 struct timeval tv, *tvp; 678 sigset_t set, *uset; 679 int error; 680 681 if (uap->ts != NULL) { 682 error = copyin(uap->ts, &ts32, sizeof(ts32)); 683 if (error != 0) 684 return (error); 685 CP(ts32, ts, tv_sec); 686 CP(ts32, ts, tv_nsec); 687 TIMESPEC_TO_TIMEVAL(&tv, &ts); 688 tvp = &tv; 689 } else 690 tvp = NULL; 691 if (uap->sm != NULL) { 692 error = copyin(uap->sm, &set, sizeof(set)); 693 if (error != 0) 694 return (error); 695 uset = &set; 696 } else 697 uset = NULL; 698 /* 699 * XXX Do pointers need PTRIN()? 700 */ 701 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 702 uset, sizeof(int32_t) * 8); 703 return (error); 704} 705 706/* 707 * Copy 'count' items into the destination list pointed to by uap->eventlist. 708 */ 709static int 710freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 711{ 712 struct freebsd32_kevent_args *uap; 713 struct kevent32 ks32[KQ_NEVENTS]; 714 int i, error = 0; 715 716 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 717 uap = (struct freebsd32_kevent_args *)arg; 718 719 for (i = 0; i < count; i++) { 720 CP(kevp[i], ks32[i], ident); 721 CP(kevp[i], ks32[i], filter); 722 CP(kevp[i], ks32[i], flags); 723 CP(kevp[i], ks32[i], fflags); 724 CP(kevp[i], ks32[i], data); 725 PTROUT_CP(kevp[i], ks32[i], udata); 726 } 727 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 728 if (error == 0) 729 uap->eventlist += count; 730 return (error); 731} 732 733/* 734 * Copy 'count' items from the list pointed to by uap->changelist. 735 */ 736static int 737freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 738{ 739 struct freebsd32_kevent_args *uap; 740 struct kevent32 ks32[KQ_NEVENTS]; 741 int i, error = 0; 742 743 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 744 uap = (struct freebsd32_kevent_args *)arg; 745 746 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 747 if (error) 748 goto done; 749 uap->changelist += count; 750 751 for (i = 0; i < count; i++) { 752 CP(ks32[i], kevp[i], ident); 753 CP(ks32[i], kevp[i], filter); 754 CP(ks32[i], kevp[i], flags); 755 CP(ks32[i], kevp[i], fflags); 756 CP(ks32[i], kevp[i], data); 757 PTRIN_CP(ks32[i], kevp[i], udata); 758 } 759done: 760 return (error); 761} 762 763int 764freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 765{ 766 struct timespec32 ts32; 767 struct timespec ts, *tsp; 768 struct kevent_copyops k_ops = { uap, 769 freebsd32_kevent_copyout, 770 freebsd32_kevent_copyin}; 771 int error; 772 773 774 if (uap->timeout) { 775 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 776 if (error) 777 return (error); 778 CP(ts32, ts, tv_sec); 779 CP(ts32, ts, tv_nsec); 780 tsp = &ts; 781 } else 782 tsp = NULL; 783 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 784 &k_ops, tsp); 785 return (error); 786} 787 788int 789freebsd32_gettimeofday(struct thread *td, 790 struct freebsd32_gettimeofday_args *uap) 791{ 792 struct timeval atv; 793 struct timeval32 atv32; 794 struct timezone rtz; 795 int error = 0; 796 797 if (uap->tp) { 798 microtime(&atv); 799 CP(atv, atv32, tv_sec); 800 CP(atv, atv32, tv_usec); 801 error = copyout(&atv32, uap->tp, sizeof (atv32)); 802 } 803 if (error == 0 && uap->tzp != NULL) { 804 rtz.tz_minuteswest = tz_minuteswest; 805 rtz.tz_dsttime = tz_dsttime; 806 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 807 } 808 return (error); 809} 810 811int 812freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 813{ 814 struct rusage32 s32; 815 struct rusage s; 816 int error; 817 818 error = kern_getrusage(td, uap->who, &s); 819 if (error) 820 return (error); 821 if (uap->rusage != NULL) { 822 freebsd32_rusage_out(&s, &s32); 823 error = copyout(&s32, uap->rusage, sizeof(s32)); 824 } 825 return (error); 826} 827 828static int 829freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 830{ 831 struct iovec32 iov32; 832 struct iovec *iov; 833 struct uio *uio; 834 u_int iovlen; 835 int error, i; 836 837 *uiop = NULL; 838 if (iovcnt > UIO_MAXIOV) 839 return (EINVAL); 840 iovlen = iovcnt * sizeof(struct iovec); 841 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 842 iov = (struct iovec *)(uio + 1); 843 for (i = 0; i < iovcnt; i++) { 844 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 845 if (error) { 846 free(uio, M_IOV); 847 return (error); 848 } 849 iov[i].iov_base = PTRIN(iov32.iov_base); 850 iov[i].iov_len = iov32.iov_len; 851 } 852 uio->uio_iov = iov; 853 uio->uio_iovcnt = iovcnt; 854 uio->uio_segflg = UIO_USERSPACE; 855 uio->uio_offset = -1; 856 uio->uio_resid = 0; 857 for (i = 0; i < iovcnt; i++) { 858 if (iov->iov_len > INT_MAX - uio->uio_resid) { 859 free(uio, M_IOV); 860 return (EINVAL); 861 } 862 uio->uio_resid += iov->iov_len; 863 iov++; 864 } 865 *uiop = uio; 866 return (0); 867} 868 869int 870freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 871{ 872 struct uio *auio; 873 int error; 874 875 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 876 if (error) 877 return (error); 878 error = kern_readv(td, uap->fd, auio); 879 free(auio, M_IOV); 880 return (error); 881} 882 883int 884freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 885{ 886 struct uio *auio; 887 int error; 888 889 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 890 if (error) 891 return (error); 892 error = kern_writev(td, uap->fd, auio); 893 free(auio, M_IOV); 894 return (error); 895} 896 897int 898freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 899{ 900 struct uio *auio; 901 int error; 902 903 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 904 if (error) 905 return (error); 906 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 907 free(auio, M_IOV); 908 return (error); 909} 910 911int 912freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 913{ 914 struct uio *auio; 915 int error; 916 917 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 918 if (error) 919 return (error); 920 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 921 free(auio, M_IOV); 922 return (error); 923} 924 925int 926freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 927 int error) 928{ 929 struct iovec32 iov32; 930 struct iovec *iov; 931 u_int iovlen; 932 int i; 933 934 *iovp = NULL; 935 if (iovcnt > UIO_MAXIOV) 936 return (error); 937 iovlen = iovcnt * sizeof(struct iovec); 938 iov = malloc(iovlen, M_IOV, M_WAITOK); 939 for (i = 0; i < iovcnt; i++) { 940 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 941 if (error) { 942 free(iov, M_IOV); 943 return (error); 944 } 945 iov[i].iov_base = PTRIN(iov32.iov_base); 946 iov[i].iov_len = iov32.iov_len; 947 } 948 *iovp = iov; 949 return (0); 950} 951 952static int 953freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 954{ 955 struct msghdr32 m32; 956 int error; 957 958 error = copyin(msg32, &m32, sizeof(m32)); 959 if (error) 960 return (error); 961 msg->msg_name = PTRIN(m32.msg_name); 962 msg->msg_namelen = m32.msg_namelen; 963 msg->msg_iov = PTRIN(m32.msg_iov); 964 msg->msg_iovlen = m32.msg_iovlen; 965 msg->msg_control = PTRIN(m32.msg_control); 966 msg->msg_controllen = m32.msg_controllen; 967 msg->msg_flags = m32.msg_flags; 968 return (0); 969} 970 971static int 972freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 973{ 974 struct msghdr32 m32; 975 int error; 976 977 m32.msg_name = PTROUT(msg->msg_name); 978 m32.msg_namelen = msg->msg_namelen; 979 m32.msg_iov = PTROUT(msg->msg_iov); 980 m32.msg_iovlen = msg->msg_iovlen; 981 m32.msg_control = PTROUT(msg->msg_control); 982 m32.msg_controllen = msg->msg_controllen; 983 m32.msg_flags = msg->msg_flags; 984 error = copyout(&m32, msg32, sizeof(m32)); 985 return (error); 986} 987 988#ifndef __mips__ 989#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 990#else 991#define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 992#endif 993#define FREEBSD32_ALIGN(p) \ 994 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 995#define FREEBSD32_CMSG_SPACE(l) \ 996 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 997 998#define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 999 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 1000static int 1001freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 1002{ 1003 struct cmsghdr *cm; 1004 void *data; 1005 socklen_t clen, datalen; 1006 int error; 1007 caddr_t ctlbuf; 1008 int len, maxlen, copylen; 1009 struct mbuf *m; 1010 error = 0; 1011 1012 len = msg->msg_controllen; 1013 maxlen = msg->msg_controllen; 1014 msg->msg_controllen = 0; 1015 1016 m = control; 1017 ctlbuf = msg->msg_control; 1018 1019 while (m && len > 0) { 1020 cm = mtod(m, struct cmsghdr *); 1021 clen = m->m_len; 1022 1023 while (cm != NULL) { 1024 1025 if (sizeof(struct cmsghdr) > clen || 1026 cm->cmsg_len > clen) { 1027 error = EINVAL; 1028 break; 1029 } 1030 1031 data = CMSG_DATA(cm); 1032 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1033 1034 /* Adjust message length */ 1035 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 1036 datalen; 1037 1038 1039 /* Copy cmsghdr */ 1040 copylen = sizeof(struct cmsghdr); 1041 if (len < copylen) { 1042 msg->msg_flags |= MSG_CTRUNC; 1043 copylen = len; 1044 } 1045 1046 error = copyout(cm,ctlbuf,copylen); 1047 if (error) 1048 goto exit; 1049 1050 ctlbuf += FREEBSD32_ALIGN(copylen); 1051 len -= FREEBSD32_ALIGN(copylen); 1052 1053 if (len <= 0) 1054 break; 1055 1056 /* Copy data */ 1057 copylen = datalen; 1058 if (len < copylen) { 1059 msg->msg_flags |= MSG_CTRUNC; 1060 copylen = len; 1061 } 1062 1063 error = copyout(data,ctlbuf,copylen); 1064 if (error) 1065 goto exit; 1066 1067 ctlbuf += FREEBSD32_ALIGN(copylen); 1068 len -= FREEBSD32_ALIGN(copylen); 1069 1070 if (CMSG_SPACE(datalen) < clen) { 1071 clen -= CMSG_SPACE(datalen); 1072 cm = (struct cmsghdr *) 1073 ((caddr_t)cm + CMSG_SPACE(datalen)); 1074 } else { 1075 clen = 0; 1076 cm = NULL; 1077 } 1078 } 1079 m = m->m_next; 1080 } 1081 1082 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 1083 1084exit: 1085 return (error); 1086 1087} 1088 1089int 1090freebsd32_recvmsg(td, uap) 1091 struct thread *td; 1092 struct freebsd32_recvmsg_args /* { 1093 int s; 1094 struct msghdr32 *msg; 1095 int flags; 1096 } */ *uap; 1097{ 1098 struct msghdr msg; 1099 struct msghdr32 m32; 1100 struct iovec *uiov, *iov; 1101 struct mbuf *control = NULL; 1102 struct mbuf **controlp; 1103 1104 int error; 1105 error = copyin(uap->msg, &m32, sizeof(m32)); 1106 if (error) 1107 return (error); 1108 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1109 if (error) 1110 return (error); 1111 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1112 EMSGSIZE); 1113 if (error) 1114 return (error); 1115 msg.msg_flags = uap->flags; 1116 uiov = msg.msg_iov; 1117 msg.msg_iov = iov; 1118 1119 controlp = (msg.msg_control != NULL) ? &control : NULL; 1120 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1121 if (error == 0) { 1122 msg.msg_iov = uiov; 1123 1124 if (control != NULL) 1125 error = freebsd32_copy_msg_out(&msg, control); 1126 else 1127 msg.msg_controllen = 0; 1128 1129 if (error == 0) 1130 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1131 } 1132 free(iov, M_IOV); 1133 1134 if (control != NULL) 1135 m_freem(control); 1136 1137 return (error); 1138} 1139 1140/* 1141 * Copy-in the array of control messages constructed using alignment 1142 * and padding suitable for a 32-bit environment and construct an 1143 * mbuf using alignment and padding suitable for a 64-bit kernel. 1144 * The alignment and padding are defined indirectly by CMSG_DATA(), 1145 * CMSG_SPACE() and CMSG_LEN(). 1146 */ 1147static int 1148freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1149{ 1150 struct mbuf *m; 1151 void *md; 1152 u_int idx, len, msglen; 1153 int error; 1154 1155 buflen = FREEBSD32_ALIGN(buflen); 1156 1157 if (buflen > MCLBYTES) 1158 return (EINVAL); 1159 1160 /* 1161 * Iterate over the buffer and get the length of each message 1162 * in there. This has 32-bit alignment and padding. Use it to 1163 * determine the length of these messages when using 64-bit 1164 * alignment and padding. 1165 */ 1166 idx = 0; 1167 len = 0; 1168 while (idx < buflen) { 1169 error = copyin(buf + idx, &msglen, sizeof(msglen)); 1170 if (error) 1171 return (error); 1172 if (msglen < sizeof(struct cmsghdr)) 1173 return (EINVAL); 1174 msglen = FREEBSD32_ALIGN(msglen); 1175 if (idx + msglen > buflen) 1176 return (EINVAL); 1177 idx += msglen; 1178 msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) - 1179 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1180 len += CMSG_ALIGN(msglen); 1181 } 1182 1183 if (len > MCLBYTES) 1184 return (EINVAL); 1185 1186 m = m_get(M_WAITOK, MT_CONTROL); 1187 if (len > MLEN) 1188 MCLGET(m, M_WAITOK); 1189 m->m_len = len; 1190 1191 md = mtod(m, void *); 1192 while (buflen > 0) { 1193 error = copyin(buf, md, sizeof(struct cmsghdr)); 1194 if (error) 1195 break; 1196 msglen = *(u_int *)md; 1197 msglen = FREEBSD32_ALIGN(msglen); 1198 1199 /* Modify the message length to account for alignment. */ 1200 *(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) - 1201 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1202 1203 md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr)); 1204 buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1205 buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1206 1207 msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1208 if (msglen > 0) { 1209 error = copyin(buf, md, msglen); 1210 if (error) 1211 break; 1212 md = (char *)md + CMSG_ALIGN(msglen); 1213 buf += msglen; 1214 buflen -= msglen; 1215 } 1216 } 1217 1218 if (error) 1219 m_free(m); 1220 else 1221 *mp = m; 1222 return (error); 1223} 1224 1225int 1226freebsd32_sendmsg(struct thread *td, 1227 struct freebsd32_sendmsg_args *uap) 1228{ 1229 struct msghdr msg; 1230 struct msghdr32 m32; 1231 struct iovec *iov; 1232 struct mbuf *control = NULL; 1233 struct sockaddr *to = NULL; 1234 int error; 1235 1236 error = copyin(uap->msg, &m32, sizeof(m32)); 1237 if (error) 1238 return (error); 1239 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1240 if (error) 1241 return (error); 1242 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1243 EMSGSIZE); 1244 if (error) 1245 return (error); 1246 msg.msg_iov = iov; 1247 if (msg.msg_name != NULL) { 1248 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1249 if (error) { 1250 to = NULL; 1251 goto out; 1252 } 1253 msg.msg_name = to; 1254 } 1255 1256 if (msg.msg_control) { 1257 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1258 error = EINVAL; 1259 goto out; 1260 } 1261 1262 error = freebsd32_copyin_control(&control, msg.msg_control, 1263 msg.msg_controllen); 1264 if (error) 1265 goto out; 1266 1267 msg.msg_control = NULL; 1268 msg.msg_controllen = 0; 1269 } 1270 1271 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1272 UIO_USERSPACE); 1273 1274out: 1275 free(iov, M_IOV); 1276 if (to) 1277 free(to, M_SONAME); 1278 return (error); 1279} 1280 1281int 1282freebsd32_recvfrom(struct thread *td, 1283 struct freebsd32_recvfrom_args *uap) 1284{ 1285 struct msghdr msg; 1286 struct iovec aiov; 1287 int error; 1288 1289 if (uap->fromlenaddr) { 1290 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1291 sizeof(msg.msg_namelen)); 1292 if (error) 1293 return (error); 1294 } else { 1295 msg.msg_namelen = 0; 1296 } 1297 1298 msg.msg_name = PTRIN(uap->from); 1299 msg.msg_iov = &aiov; 1300 msg.msg_iovlen = 1; 1301 aiov.iov_base = PTRIN(uap->buf); 1302 aiov.iov_len = uap->len; 1303 msg.msg_control = NULL; 1304 msg.msg_flags = uap->flags; 1305 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1306 if (error == 0 && uap->fromlenaddr) 1307 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1308 sizeof (msg.msg_namelen)); 1309 return (error); 1310} 1311 1312int 1313freebsd32_settimeofday(struct thread *td, 1314 struct freebsd32_settimeofday_args *uap) 1315{ 1316 struct timeval32 tv32; 1317 struct timeval tv, *tvp; 1318 struct timezone tz, *tzp; 1319 int error; 1320 1321 if (uap->tv) { 1322 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1323 if (error) 1324 return (error); 1325 CP(tv32, tv, tv_sec); 1326 CP(tv32, tv, tv_usec); 1327 tvp = &tv; 1328 } else 1329 tvp = NULL; 1330 if (uap->tzp) { 1331 error = copyin(uap->tzp, &tz, sizeof(tz)); 1332 if (error) 1333 return (error); 1334 tzp = &tz; 1335 } else 1336 tzp = NULL; 1337 return (kern_settimeofday(td, tvp, tzp)); 1338} 1339 1340int 1341freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1342{ 1343 struct timeval32 s32[2]; 1344 struct timeval s[2], *sp; 1345 int error; 1346 1347 if (uap->tptr != NULL) { 1348 error = copyin(uap->tptr, s32, sizeof(s32)); 1349 if (error) 1350 return (error); 1351 CP(s32[0], s[0], tv_sec); 1352 CP(s32[0], s[0], tv_usec); 1353 CP(s32[1], s[1], tv_sec); 1354 CP(s32[1], s[1], tv_usec); 1355 sp = s; 1356 } else 1357 sp = NULL; 1358 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1359} 1360 1361int 1362freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1363{ 1364 struct timeval32 s32[2]; 1365 struct timeval s[2], *sp; 1366 int error; 1367 1368 if (uap->tptr != NULL) { 1369 error = copyin(uap->tptr, s32, sizeof(s32)); 1370 if (error) 1371 return (error); 1372 CP(s32[0], s[0], tv_sec); 1373 CP(s32[0], s[0], tv_usec); 1374 CP(s32[1], s[1], tv_sec); 1375 CP(s32[1], s[1], tv_usec); 1376 sp = s; 1377 } else 1378 sp = NULL; 1379 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1380} 1381 1382int 1383freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1384{ 1385 struct timeval32 s32[2]; 1386 struct timeval s[2], *sp; 1387 int error; 1388 1389 if (uap->tptr != NULL) { 1390 error = copyin(uap->tptr, s32, sizeof(s32)); 1391 if (error) 1392 return (error); 1393 CP(s32[0], s[0], tv_sec); 1394 CP(s32[0], s[0], tv_usec); 1395 CP(s32[1], s[1], tv_sec); 1396 CP(s32[1], s[1], tv_usec); 1397 sp = s; 1398 } else 1399 sp = NULL; 1400 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1401} 1402 1403int 1404freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1405{ 1406 struct timeval32 s32[2]; 1407 struct timeval s[2], *sp; 1408 int error; 1409 1410 if (uap->times != NULL) { 1411 error = copyin(uap->times, s32, sizeof(s32)); 1412 if (error) 1413 return (error); 1414 CP(s32[0], s[0], tv_sec); 1415 CP(s32[0], s[0], tv_usec); 1416 CP(s32[1], s[1], tv_sec); 1417 CP(s32[1], s[1], tv_usec); 1418 sp = s; 1419 } else 1420 sp = NULL; 1421 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1422 sp, UIO_SYSSPACE)); 1423} 1424 1425int 1426freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1427{ 1428 struct timeval32 tv32; 1429 struct timeval delta, olddelta, *deltap; 1430 int error; 1431 1432 if (uap->delta) { 1433 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1434 if (error) 1435 return (error); 1436 CP(tv32, delta, tv_sec); 1437 CP(tv32, delta, tv_usec); 1438 deltap = δ 1439 } else 1440 deltap = NULL; 1441 error = kern_adjtime(td, deltap, &olddelta); 1442 if (uap->olddelta && error == 0) { 1443 CP(olddelta, tv32, tv_sec); 1444 CP(olddelta, tv32, tv_usec); 1445 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1446 } 1447 return (error); 1448} 1449 1450#ifdef COMPAT_FREEBSD4 1451int 1452freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1453{ 1454 struct statfs32 s32; 1455 struct statfs s; 1456 int error; 1457 1458 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1459 if (error) 1460 return (error); 1461 copy_statfs(&s, &s32); 1462 return (copyout(&s32, uap->buf, sizeof(s32))); 1463} 1464#endif 1465 1466#ifdef COMPAT_FREEBSD4 1467int 1468freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1469{ 1470 struct statfs32 s32; 1471 struct statfs s; 1472 int error; 1473 1474 error = kern_fstatfs(td, uap->fd, &s); 1475 if (error) 1476 return (error); 1477 copy_statfs(&s, &s32); 1478 return (copyout(&s32, uap->buf, sizeof(s32))); 1479} 1480#endif 1481 1482#ifdef COMPAT_FREEBSD4 1483int 1484freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1485{ 1486 struct statfs32 s32; 1487 struct statfs s; 1488 fhandle_t fh; 1489 int error; 1490 1491 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1492 return (error); 1493 error = kern_fhstatfs(td, fh, &s); 1494 if (error) 1495 return (error); 1496 copy_statfs(&s, &s32); 1497 return (copyout(&s32, uap->buf, sizeof(s32))); 1498} 1499#endif 1500 1501int 1502freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1503{ 1504 struct pread_args ap; 1505 1506 ap.fd = uap->fd; 1507 ap.buf = uap->buf; 1508 ap.nbyte = uap->nbyte; 1509 ap.offset = PAIR32TO64(off_t,uap->offset); 1510 return (sys_pread(td, &ap)); 1511} 1512 1513int 1514freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1515{ 1516 struct pwrite_args ap; 1517 1518 ap.fd = uap->fd; 1519 ap.buf = uap->buf; 1520 ap.nbyte = uap->nbyte; 1521 ap.offset = PAIR32TO64(off_t,uap->offset); 1522 return (sys_pwrite(td, &ap)); 1523} 1524 1525#ifdef COMPAT_43 1526int 1527ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1528{ 1529 struct lseek_args nuap; 1530 1531 nuap.fd = uap->fd; 1532 nuap.offset = uap->offset; 1533 nuap.whence = uap->whence; 1534 return (sys_lseek(td, &nuap)); 1535} 1536#endif 1537 1538int 1539freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1540{ 1541 int error; 1542 struct lseek_args ap; 1543 off_t pos; 1544 1545 ap.fd = uap->fd; 1546 ap.offset = PAIR32TO64(off_t,uap->offset); 1547 ap.whence = uap->whence; 1548 error = sys_lseek(td, &ap); 1549 /* Expand the quad return into two parts for eax and edx */ 1550 pos = td->td_uretoff.tdu_off; 1551 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1552 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1553 return error; 1554} 1555 1556int 1557freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1558{ 1559 struct truncate_args ap; 1560 1561 ap.path = uap->path; 1562 ap.length = PAIR32TO64(off_t,uap->length); 1563 return (sys_truncate(td, &ap)); 1564} 1565 1566int 1567freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1568{ 1569 struct ftruncate_args ap; 1570 1571 ap.fd = uap->fd; 1572 ap.length = PAIR32TO64(off_t,uap->length); 1573 return (sys_ftruncate(td, &ap)); 1574} 1575 1576#ifdef COMPAT_43 1577int 1578ofreebsd32_getdirentries(struct thread *td, 1579 struct ofreebsd32_getdirentries_args *uap) 1580{ 1581 struct ogetdirentries_args ap; 1582 int error; 1583 long loff; 1584 int32_t loff_cut; 1585 1586 ap.fd = uap->fd; 1587 ap.buf = uap->buf; 1588 ap.count = uap->count; 1589 ap.basep = NULL; 1590 error = kern_ogetdirentries(td, &ap, &loff); 1591 if (error == 0) { 1592 loff_cut = loff; 1593 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1594 } 1595 return (error); 1596} 1597#endif 1598 1599int 1600freebsd32_getdirentries(struct thread *td, 1601 struct freebsd32_getdirentries_args *uap) 1602{ 1603 long base; 1604 int32_t base32; 1605 int error; 1606 1607 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1608 NULL, UIO_USERSPACE); 1609 if (error) 1610 return (error); 1611 if (uap->basep != NULL) { 1612 base32 = base; 1613 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1614 } 1615 return (error); 1616} 1617 1618#ifdef COMPAT_FREEBSD6 1619/* versions with the 'int pad' argument */ 1620int 1621freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1622{ 1623 struct pread_args ap; 1624 1625 ap.fd = uap->fd; 1626 ap.buf = uap->buf; 1627 ap.nbyte = uap->nbyte; 1628 ap.offset = PAIR32TO64(off_t,uap->offset); 1629 return (sys_pread(td, &ap)); 1630} 1631 1632int 1633freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1634{ 1635 struct pwrite_args ap; 1636 1637 ap.fd = uap->fd; 1638 ap.buf = uap->buf; 1639 ap.nbyte = uap->nbyte; 1640 ap.offset = PAIR32TO64(off_t,uap->offset); 1641 return (sys_pwrite(td, &ap)); 1642} 1643 1644int 1645freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1646{ 1647 int error; 1648 struct lseek_args ap; 1649 off_t pos; 1650 1651 ap.fd = uap->fd; 1652 ap.offset = PAIR32TO64(off_t,uap->offset); 1653 ap.whence = uap->whence; 1654 error = sys_lseek(td, &ap); 1655 /* Expand the quad return into two parts for eax and edx */ 1656 pos = *(off_t *)(td->td_retval); 1657 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1658 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1659 return error; 1660} 1661 1662int 1663freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1664{ 1665 struct truncate_args ap; 1666 1667 ap.path = uap->path; 1668 ap.length = PAIR32TO64(off_t,uap->length); 1669 return (sys_truncate(td, &ap)); 1670} 1671 1672int 1673freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1674{ 1675 struct ftruncate_args ap; 1676 1677 ap.fd = uap->fd; 1678 ap.length = PAIR32TO64(off_t,uap->length); 1679 return (sys_ftruncate(td, &ap)); 1680} 1681#endif /* COMPAT_FREEBSD6 */ 1682 1683struct sf_hdtr32 { 1684 uint32_t headers; 1685 int hdr_cnt; 1686 uint32_t trailers; 1687 int trl_cnt; 1688}; 1689 1690struct sf_hdtr_kq32 { 1691 int kq_fd; 1692 uint32_t kq_flags; 1693 uint32_t kq_udata; /* 32-bit void ptr */ 1694 uint32_t kq_ident; /* 32-bit uintptr_t */ 1695}; 1696 1697static int 1698freebsd32_do_sendfile(struct thread *td, 1699 struct freebsd32_sendfile_args *uap, int compat) 1700{ 1701 struct sf_hdtr32 hdtr32; 1702 struct sf_hdtr hdtr; 1703 struct sf_hdtr_kq32 hdtr_kq32; 1704 struct sf_hdtr_kq hdtr_kq; 1705 struct uio *hdr_uio, *trl_uio; 1706 struct iovec32 *iov32; 1707 off_t offset; 1708 int error; 1709 off_t sbytes; 1710 1711 offset = PAIR32TO64(off_t, uap->offset); 1712 if (offset < 0) 1713 return (EINVAL); 1714 1715 hdr_uio = trl_uio = NULL; 1716 1717 if (uap->hdtr != NULL) { 1718 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1719 if (error) 1720 goto out; 1721 PTRIN_CP(hdtr32, hdtr, headers); 1722 CP(hdtr32, hdtr, hdr_cnt); 1723 PTRIN_CP(hdtr32, hdtr, trailers); 1724 CP(hdtr32, hdtr, trl_cnt); 1725 1726 if (hdtr.headers != NULL) { 1727 iov32 = PTRIN(hdtr32.headers); 1728 error = freebsd32_copyinuio(iov32, 1729 hdtr32.hdr_cnt, &hdr_uio); 1730 if (error) 1731 goto out; 1732 } 1733 if (hdtr.trailers != NULL) { 1734 iov32 = PTRIN(hdtr32.trailers); 1735 error = freebsd32_copyinuio(iov32, 1736 hdtr32.trl_cnt, &trl_uio); 1737 if (error) 1738 goto out; 1739 } 1740 1741 /* 1742 * If SF_KQUEUE is set, then we need to also copy in 1743 * the kqueue data after the normal hdtr set and set do_kqueue=1. 1744 */ 1745 if (uap->flags & SF_KQUEUE) { 1746 error = copyin(((char *) uap->hdtr) + sizeof(hdtr32), 1747 &hdtr_kq32, 1748 sizeof(hdtr_kq32)); 1749 if (error != 0) 1750 goto out; 1751 1752 /* 32->64 bit fields */ 1753 CP(hdtr_kq32, hdtr_kq, kq_fd); 1754 CP(hdtr_kq32, hdtr_kq, kq_flags); 1755 PTRIN_CP(hdtr_kq32, hdtr_kq, kq_udata); 1756 CP(hdtr_kq32, hdtr_kq, kq_ident); 1757 } 1758 } 1759 1760 1761 /* Call sendfile */ 1762 /* XXX stack depth! */ 1763 error = _do_sendfile(td, uap->fd, uap->s, uap->flags, compat, 1764 offset, uap->nbytes, &sbytes, hdr_uio, trl_uio, &hdtr_kq); 1765 1766 if (uap->sbytes != NULL) 1767 copyout(&sbytes, uap->sbytes, sizeof(off_t)); 1768 1769out: 1770 if (hdr_uio) 1771 free(hdr_uio, M_IOV); 1772 if (trl_uio) 1773 free(trl_uio, M_IOV); 1774 return (error); 1775} 1776 1777#ifdef COMPAT_FREEBSD4 1778int 1779freebsd4_freebsd32_sendfile(struct thread *td, 1780 struct freebsd4_freebsd32_sendfile_args *uap) 1781{ 1782 return (freebsd32_do_sendfile(td, 1783 (struct freebsd32_sendfile_args *)uap, 1)); 1784} 1785#endif 1786 1787int 1788freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1789{ 1790 1791 return (freebsd32_do_sendfile(td, uap, 0)); 1792} 1793 1794static void 1795copy_stat(struct stat *in, struct stat32 *out) 1796{ 1797 1798 CP(*in, *out, st_dev); 1799 CP(*in, *out, st_ino); 1800 CP(*in, *out, st_mode); 1801 CP(*in, *out, st_nlink); 1802 CP(*in, *out, st_uid); 1803 CP(*in, *out, st_gid); 1804 CP(*in, *out, st_rdev); 1805 TS_CP(*in, *out, st_atim); 1806 TS_CP(*in, *out, st_mtim); 1807 TS_CP(*in, *out, st_ctim); 1808 CP(*in, *out, st_size); 1809 CP(*in, *out, st_blocks); 1810 CP(*in, *out, st_blksize); 1811 CP(*in, *out, st_flags); 1812 CP(*in, *out, st_gen); 1813 TS_CP(*in, *out, st_birthtim); 1814} 1815 1816#ifdef COMPAT_43 1817static void 1818copy_ostat(struct stat *in, struct ostat32 *out) 1819{ 1820 1821 CP(*in, *out, st_dev); 1822 CP(*in, *out, st_ino); 1823 CP(*in, *out, st_mode); 1824 CP(*in, *out, st_nlink); 1825 CP(*in, *out, st_uid); 1826 CP(*in, *out, st_gid); 1827 CP(*in, *out, st_rdev); 1828 CP(*in, *out, st_size); 1829 TS_CP(*in, *out, st_atim); 1830 TS_CP(*in, *out, st_mtim); 1831 TS_CP(*in, *out, st_ctim); 1832 CP(*in, *out, st_blksize); 1833 CP(*in, *out, st_blocks); 1834 CP(*in, *out, st_flags); 1835 CP(*in, *out, st_gen); 1836} 1837#endif 1838 1839int 1840freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1841{ 1842 struct stat sb; 1843 struct stat32 sb32; 1844 int error; 1845 1846 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1847 if (error) 1848 return (error); 1849 copy_stat(&sb, &sb32); 1850 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1851 return (error); 1852} 1853 1854#ifdef COMPAT_43 1855int 1856ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1857{ 1858 struct stat sb; 1859 struct ostat32 sb32; 1860 int error; 1861 1862 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1863 if (error) 1864 return (error); 1865 copy_ostat(&sb, &sb32); 1866 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1867 return (error); 1868} 1869#endif 1870 1871int 1872freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1873{ 1874 struct stat ub; 1875 struct stat32 ub32; 1876 int error; 1877 1878 error = kern_fstat(td, uap->fd, &ub); 1879 if (error) 1880 return (error); 1881 copy_stat(&ub, &ub32); 1882 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1883 return (error); 1884} 1885 1886#ifdef COMPAT_43 1887int 1888ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1889{ 1890 struct stat ub; 1891 struct ostat32 ub32; 1892 int error; 1893 1894 error = kern_fstat(td, uap->fd, &ub); 1895 if (error) 1896 return (error); 1897 copy_ostat(&ub, &ub32); 1898 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1899 return (error); 1900} 1901#endif 1902 1903int 1904freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1905{ 1906 struct stat ub; 1907 struct stat32 ub32; 1908 int error; 1909 1910 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1911 if (error) 1912 return (error); 1913 copy_stat(&ub, &ub32); 1914 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1915 return (error); 1916} 1917 1918int 1919freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1920{ 1921 struct stat sb; 1922 struct stat32 sb32; 1923 int error; 1924 1925 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1926 if (error) 1927 return (error); 1928 copy_stat(&sb, &sb32); 1929 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1930 return (error); 1931} 1932 1933#ifdef COMPAT_43 1934int 1935ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1936{ 1937 struct stat sb; 1938 struct ostat32 sb32; 1939 int error; 1940 1941 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1942 if (error) 1943 return (error); 1944 copy_ostat(&sb, &sb32); 1945 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1946 return (error); 1947} 1948#endif 1949 1950int 1951freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1952{ 1953 int error, name[CTL_MAXNAME]; 1954 size_t j, oldlen; 1955 1956 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1957 return (EINVAL); 1958 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1959 if (error) 1960 return (error); 1961 if (uap->oldlenp) 1962 oldlen = fuword32(uap->oldlenp); 1963 else 1964 oldlen = 0; 1965 error = userland_sysctl(td, name, uap->namelen, 1966 uap->old, &oldlen, 1, 1967 uap->new, uap->newlen, &j, SCTL_MASK32); 1968 if (error && error != ENOMEM) 1969 return (error); 1970 if (uap->oldlenp) 1971 suword32(uap->oldlenp, j); 1972 return (0); 1973} 1974 1975int 1976freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1977{ 1978 uint32_t version; 1979 int error; 1980 struct jail j; 1981 1982 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1983 if (error) 1984 return (error); 1985 1986 switch (version) { 1987 case 0: 1988 { 1989 /* FreeBSD single IPv4 jails. */ 1990 struct jail32_v0 j32_v0; 1991 1992 bzero(&j, sizeof(struct jail)); 1993 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1994 if (error) 1995 return (error); 1996 CP(j32_v0, j, version); 1997 PTRIN_CP(j32_v0, j, path); 1998 PTRIN_CP(j32_v0, j, hostname); 1999 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 2000 break; 2001 } 2002 2003 case 1: 2004 /* 2005 * Version 1 was used by multi-IPv4 jail implementations 2006 * that never made it into the official kernel. 2007 */ 2008 return (EINVAL); 2009 2010 case 2: /* JAIL_API_VERSION */ 2011 { 2012 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 2013 struct jail32 j32; 2014 2015 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 2016 if (error) 2017 return (error); 2018 CP(j32, j, version); 2019 PTRIN_CP(j32, j, path); 2020 PTRIN_CP(j32, j, hostname); 2021 PTRIN_CP(j32, j, jailname); 2022 CP(j32, j, ip4s); 2023 CP(j32, j, ip6s); 2024 PTRIN_CP(j32, j, ip4); 2025 PTRIN_CP(j32, j, ip6); 2026 break; 2027 } 2028 2029 default: 2030 /* Sci-Fi jails are not supported, sorry. */ 2031 return (EINVAL); 2032 } 2033 return (kern_jail(td, &j)); 2034} 2035 2036int 2037freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 2038{ 2039 struct uio *auio; 2040 int error; 2041 2042 /* Check that we have an even number of iovecs. */ 2043 if (uap->iovcnt & 1) 2044 return (EINVAL); 2045 2046 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2047 if (error) 2048 return (error); 2049 error = kern_jail_set(td, auio, uap->flags); 2050 free(auio, M_IOV); 2051 return (error); 2052} 2053 2054int 2055freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 2056{ 2057 struct iovec32 iov32; 2058 struct uio *auio; 2059 int error, i; 2060 2061 /* Check that we have an even number of iovecs. */ 2062 if (uap->iovcnt & 1) 2063 return (EINVAL); 2064 2065 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2066 if (error) 2067 return (error); 2068 error = kern_jail_get(td, auio, uap->flags); 2069 if (error == 0) 2070 for (i = 0; i < uap->iovcnt; i++) { 2071 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 2072 CP(auio->uio_iov[i], iov32, iov_len); 2073 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 2074 if (error != 0) 2075 break; 2076 } 2077 free(auio, M_IOV); 2078 return (error); 2079} 2080 2081int 2082freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2083{ 2084 struct sigaction32 s32; 2085 struct sigaction sa, osa, *sap; 2086 int error; 2087 2088 if (uap->act) { 2089 error = copyin(uap->act, &s32, sizeof(s32)); 2090 if (error) 2091 return (error); 2092 sa.sa_handler = PTRIN(s32.sa_u); 2093 CP(s32, sa, sa_flags); 2094 CP(s32, sa, sa_mask); 2095 sap = &sa; 2096 } else 2097 sap = NULL; 2098 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2099 if (error == 0 && uap->oact != NULL) { 2100 s32.sa_u = PTROUT(osa.sa_handler); 2101 CP(osa, s32, sa_flags); 2102 CP(osa, s32, sa_mask); 2103 error = copyout(&s32, uap->oact, sizeof(s32)); 2104 } 2105 return (error); 2106} 2107 2108#ifdef COMPAT_FREEBSD4 2109int 2110freebsd4_freebsd32_sigaction(struct thread *td, 2111 struct freebsd4_freebsd32_sigaction_args *uap) 2112{ 2113 struct sigaction32 s32; 2114 struct sigaction sa, osa, *sap; 2115 int error; 2116 2117 if (uap->act) { 2118 error = copyin(uap->act, &s32, sizeof(s32)); 2119 if (error) 2120 return (error); 2121 sa.sa_handler = PTRIN(s32.sa_u); 2122 CP(s32, sa, sa_flags); 2123 CP(s32, sa, sa_mask); 2124 sap = &sa; 2125 } else 2126 sap = NULL; 2127 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2128 if (error == 0 && uap->oact != NULL) { 2129 s32.sa_u = PTROUT(osa.sa_handler); 2130 CP(osa, s32, sa_flags); 2131 CP(osa, s32, sa_mask); 2132 error = copyout(&s32, uap->oact, sizeof(s32)); 2133 } 2134 return (error); 2135} 2136#endif 2137 2138#ifdef COMPAT_43 2139struct osigaction32 { 2140 u_int32_t sa_u; 2141 osigset_t sa_mask; 2142 int sa_flags; 2143}; 2144 2145#define ONSIG 32 2146 2147int 2148ofreebsd32_sigaction(struct thread *td, 2149 struct ofreebsd32_sigaction_args *uap) 2150{ 2151 struct osigaction32 s32; 2152 struct sigaction sa, osa, *sap; 2153 int error; 2154 2155 if (uap->signum <= 0 || uap->signum >= ONSIG) 2156 return (EINVAL); 2157 2158 if (uap->nsa) { 2159 error = copyin(uap->nsa, &s32, sizeof(s32)); 2160 if (error) 2161 return (error); 2162 sa.sa_handler = PTRIN(s32.sa_u); 2163 CP(s32, sa, sa_flags); 2164 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2165 sap = &sa; 2166 } else 2167 sap = NULL; 2168 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2169 if (error == 0 && uap->osa != NULL) { 2170 s32.sa_u = PTROUT(osa.sa_handler); 2171 CP(osa, s32, sa_flags); 2172 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2173 error = copyout(&s32, uap->osa, sizeof(s32)); 2174 } 2175 return (error); 2176} 2177 2178int 2179ofreebsd32_sigprocmask(struct thread *td, 2180 struct ofreebsd32_sigprocmask_args *uap) 2181{ 2182 sigset_t set, oset; 2183 int error; 2184 2185 OSIG2SIG(uap->mask, set); 2186 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2187 SIG2OSIG(oset, td->td_retval[0]); 2188 return (error); 2189} 2190 2191int 2192ofreebsd32_sigpending(struct thread *td, 2193 struct ofreebsd32_sigpending_args *uap) 2194{ 2195 struct proc *p = td->td_proc; 2196 sigset_t siglist; 2197 2198 PROC_LOCK(p); 2199 siglist = p->p_siglist; 2200 SIGSETOR(siglist, td->td_siglist); 2201 PROC_UNLOCK(p); 2202 SIG2OSIG(siglist, td->td_retval[0]); 2203 return (0); 2204} 2205 2206struct sigvec32 { 2207 u_int32_t sv_handler; 2208 int sv_mask; 2209 int sv_flags; 2210}; 2211 2212int 2213ofreebsd32_sigvec(struct thread *td, 2214 struct ofreebsd32_sigvec_args *uap) 2215{ 2216 struct sigvec32 vec; 2217 struct sigaction sa, osa, *sap; 2218 int error; 2219 2220 if (uap->signum <= 0 || uap->signum >= ONSIG) 2221 return (EINVAL); 2222 2223 if (uap->nsv) { 2224 error = copyin(uap->nsv, &vec, sizeof(vec)); 2225 if (error) 2226 return (error); 2227 sa.sa_handler = PTRIN(vec.sv_handler); 2228 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2229 sa.sa_flags = vec.sv_flags; 2230 sa.sa_flags ^= SA_RESTART; 2231 sap = &sa; 2232 } else 2233 sap = NULL; 2234 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2235 if (error == 0 && uap->osv != NULL) { 2236 vec.sv_handler = PTROUT(osa.sa_handler); 2237 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2238 vec.sv_flags = osa.sa_flags; 2239 vec.sv_flags &= ~SA_NOCLDWAIT; 2240 vec.sv_flags ^= SA_RESTART; 2241 error = copyout(&vec, uap->osv, sizeof(vec)); 2242 } 2243 return (error); 2244} 2245 2246int 2247ofreebsd32_sigblock(struct thread *td, 2248 struct ofreebsd32_sigblock_args *uap) 2249{ 2250 sigset_t set, oset; 2251 2252 OSIG2SIG(uap->mask, set); 2253 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2254 SIG2OSIG(oset, td->td_retval[0]); 2255 return (0); 2256} 2257 2258int 2259ofreebsd32_sigsetmask(struct thread *td, 2260 struct ofreebsd32_sigsetmask_args *uap) 2261{ 2262 sigset_t set, oset; 2263 2264 OSIG2SIG(uap->mask, set); 2265 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2266 SIG2OSIG(oset, td->td_retval[0]); 2267 return (0); 2268} 2269 2270int 2271ofreebsd32_sigsuspend(struct thread *td, 2272 struct ofreebsd32_sigsuspend_args *uap) 2273{ 2274 sigset_t mask; 2275 2276 OSIG2SIG(uap->mask, mask); 2277 return (kern_sigsuspend(td, mask)); 2278} 2279 2280struct sigstack32 { 2281 u_int32_t ss_sp; 2282 int ss_onstack; 2283}; 2284 2285int 2286ofreebsd32_sigstack(struct thread *td, 2287 struct ofreebsd32_sigstack_args *uap) 2288{ 2289 struct sigstack32 s32; 2290 struct sigstack nss, oss; 2291 int error = 0, unss; 2292 2293 if (uap->nss != NULL) { 2294 error = copyin(uap->nss, &s32, sizeof(s32)); 2295 if (error) 2296 return (error); 2297 nss.ss_sp = PTRIN(s32.ss_sp); 2298 CP(s32, nss, ss_onstack); 2299 unss = 1; 2300 } else { 2301 unss = 0; 2302 } 2303 oss.ss_sp = td->td_sigstk.ss_sp; 2304 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2305 if (unss) { 2306 td->td_sigstk.ss_sp = nss.ss_sp; 2307 td->td_sigstk.ss_size = 0; 2308 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2309 td->td_pflags |= TDP_ALTSTACK; 2310 } 2311 if (uap->oss != NULL) { 2312 s32.ss_sp = PTROUT(oss.ss_sp); 2313 CP(oss, s32, ss_onstack); 2314 error = copyout(&s32, uap->oss, sizeof(s32)); 2315 } 2316 return (error); 2317} 2318#endif 2319 2320int 2321freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2322{ 2323 struct timespec32 rmt32, rqt32; 2324 struct timespec rmt, rqt; 2325 int error; 2326 2327 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2328 if (error) 2329 return (error); 2330 2331 CP(rqt32, rqt, tv_sec); 2332 CP(rqt32, rqt, tv_nsec); 2333 2334 if (uap->rmtp && 2335 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2336 return (EFAULT); 2337 error = kern_nanosleep(td, &rqt, &rmt); 2338 if (error && uap->rmtp) { 2339 int error2; 2340 2341 CP(rmt, rmt32, tv_sec); 2342 CP(rmt, rmt32, tv_nsec); 2343 2344 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2345 if (error2) 2346 error = error2; 2347 } 2348 return (error); 2349} 2350 2351int 2352freebsd32_clock_gettime(struct thread *td, 2353 struct freebsd32_clock_gettime_args *uap) 2354{ 2355 struct timespec ats; 2356 struct timespec32 ats32; 2357 int error; 2358 2359 error = kern_clock_gettime(td, uap->clock_id, &ats); 2360 if (error == 0) { 2361 CP(ats, ats32, tv_sec); 2362 CP(ats, ats32, tv_nsec); 2363 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2364 } 2365 return (error); 2366} 2367 2368int 2369freebsd32_clock_settime(struct thread *td, 2370 struct freebsd32_clock_settime_args *uap) 2371{ 2372 struct timespec ats; 2373 struct timespec32 ats32; 2374 int error; 2375 2376 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2377 if (error) 2378 return (error); 2379 CP(ats32, ats, tv_sec); 2380 CP(ats32, ats, tv_nsec); 2381 2382 return (kern_clock_settime(td, uap->clock_id, &ats)); 2383} 2384 2385int 2386freebsd32_clock_getres(struct thread *td, 2387 struct freebsd32_clock_getres_args *uap) 2388{ 2389 struct timespec ts; 2390 struct timespec32 ts32; 2391 int error; 2392 2393 if (uap->tp == NULL) 2394 return (0); 2395 error = kern_clock_getres(td, uap->clock_id, &ts); 2396 if (error == 0) { 2397 CP(ts, ts32, tv_sec); 2398 CP(ts, ts32, tv_nsec); 2399 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2400 } 2401 return (error); 2402} 2403 2404int freebsd32_ktimer_create(struct thread *td, 2405 struct freebsd32_ktimer_create_args *uap) 2406{ 2407 struct sigevent32 ev32; 2408 struct sigevent ev, *evp; 2409 int error, id; 2410 2411 if (uap->evp == NULL) { 2412 evp = NULL; 2413 } else { 2414 evp = &ev; 2415 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2416 if (error != 0) 2417 return (error); 2418 error = convert_sigevent32(&ev32, &ev); 2419 if (error != 0) 2420 return (error); 2421 } 2422 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2423 if (error == 0) { 2424 error = copyout(&id, uap->timerid, sizeof(int)); 2425 if (error != 0) 2426 kern_ktimer_delete(td, id); 2427 } 2428 return (error); 2429} 2430 2431int 2432freebsd32_ktimer_settime(struct thread *td, 2433 struct freebsd32_ktimer_settime_args *uap) 2434{ 2435 struct itimerspec32 val32, oval32; 2436 struct itimerspec val, oval, *ovalp; 2437 int error; 2438 2439 error = copyin(uap->value, &val32, sizeof(val32)); 2440 if (error != 0) 2441 return (error); 2442 ITS_CP(val32, val); 2443 ovalp = uap->ovalue != NULL ? &oval : NULL; 2444 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2445 if (error == 0 && uap->ovalue != NULL) { 2446 ITS_CP(oval, oval32); 2447 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2448 } 2449 return (error); 2450} 2451 2452int 2453freebsd32_ktimer_gettime(struct thread *td, 2454 struct freebsd32_ktimer_gettime_args *uap) 2455{ 2456 struct itimerspec32 val32; 2457 struct itimerspec val; 2458 int error; 2459 2460 error = kern_ktimer_gettime(td, uap->timerid, &val); 2461 if (error == 0) { 2462 ITS_CP(val, val32); 2463 error = copyout(&val32, uap->value, sizeof(val32)); 2464 } 2465 return (error); 2466} 2467 2468int 2469freebsd32_clock_getcpuclockid2(struct thread *td, 2470 struct freebsd32_clock_getcpuclockid2_args *uap) 2471{ 2472 clockid_t clk_id; 2473 int error; 2474 2475 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2476 uap->which, &clk_id); 2477 if (error == 0) 2478 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2479 return (error); 2480} 2481 2482int 2483freebsd32_thr_new(struct thread *td, 2484 struct freebsd32_thr_new_args *uap) 2485{ 2486 struct thr_param32 param32; 2487 struct thr_param param; 2488 int error; 2489 2490 if (uap->param_size < 0 || 2491 uap->param_size > sizeof(struct thr_param32)) 2492 return (EINVAL); 2493 bzero(¶m, sizeof(struct thr_param)); 2494 bzero(¶m32, sizeof(struct thr_param32)); 2495 error = copyin(uap->param, ¶m32, uap->param_size); 2496 if (error != 0) 2497 return (error); 2498 param.start_func = PTRIN(param32.start_func); 2499 param.arg = PTRIN(param32.arg); 2500 param.stack_base = PTRIN(param32.stack_base); 2501 param.stack_size = param32.stack_size; 2502 param.tls_base = PTRIN(param32.tls_base); 2503 param.tls_size = param32.tls_size; 2504 param.child_tid = PTRIN(param32.child_tid); 2505 param.parent_tid = PTRIN(param32.parent_tid); 2506 param.flags = param32.flags; 2507 param.rtp = PTRIN(param32.rtp); 2508 param.spare[0] = PTRIN(param32.spare[0]); 2509 param.spare[1] = PTRIN(param32.spare[1]); 2510 param.spare[2] = PTRIN(param32.spare[2]); 2511 2512 return (kern_thr_new(td, ¶m)); 2513} 2514 2515int 2516freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2517{ 2518 struct timespec32 ts32; 2519 struct timespec ts, *tsp; 2520 int error; 2521 2522 error = 0; 2523 tsp = NULL; 2524 if (uap->timeout != NULL) { 2525 error = copyin((const void *)uap->timeout, (void *)&ts32, 2526 sizeof(struct timespec32)); 2527 if (error != 0) 2528 return (error); 2529 ts.tv_sec = ts32.tv_sec; 2530 ts.tv_nsec = ts32.tv_nsec; 2531 tsp = &ts; 2532 } 2533 return (kern_thr_suspend(td, tsp)); 2534} 2535 2536void 2537siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2538{ 2539 bzero(dst, sizeof(*dst)); 2540 dst->si_signo = src->si_signo; 2541 dst->si_errno = src->si_errno; 2542 dst->si_code = src->si_code; 2543 dst->si_pid = src->si_pid; 2544 dst->si_uid = src->si_uid; 2545 dst->si_status = src->si_status; 2546 dst->si_addr = (uintptr_t)src->si_addr; 2547 dst->si_value.sival_int = src->si_value.sival_int; 2548 dst->si_timerid = src->si_timerid; 2549 dst->si_overrun = src->si_overrun; 2550} 2551 2552int 2553freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2554{ 2555 struct timespec32 ts32; 2556 struct timespec ts; 2557 struct timespec *timeout; 2558 sigset_t set; 2559 ksiginfo_t ksi; 2560 struct siginfo32 si32; 2561 int error; 2562 2563 if (uap->timeout) { 2564 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2565 if (error) 2566 return (error); 2567 ts.tv_sec = ts32.tv_sec; 2568 ts.tv_nsec = ts32.tv_nsec; 2569 timeout = &ts; 2570 } else 2571 timeout = NULL; 2572 2573 error = copyin(uap->set, &set, sizeof(set)); 2574 if (error) 2575 return (error); 2576 2577 error = kern_sigtimedwait(td, set, &ksi, timeout); 2578 if (error) 2579 return (error); 2580 2581 if (uap->info) { 2582 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2583 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2584 } 2585 2586 if (error == 0) 2587 td->td_retval[0] = ksi.ksi_signo; 2588 return (error); 2589} 2590 2591/* 2592 * MPSAFE 2593 */ 2594int 2595freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2596{ 2597 ksiginfo_t ksi; 2598 struct siginfo32 si32; 2599 sigset_t set; 2600 int error; 2601 2602 error = copyin(uap->set, &set, sizeof(set)); 2603 if (error) 2604 return (error); 2605 2606 error = kern_sigtimedwait(td, set, &ksi, NULL); 2607 if (error) 2608 return (error); 2609 2610 if (uap->info) { 2611 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2612 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2613 } 2614 if (error == 0) 2615 td->td_retval[0] = ksi.ksi_signo; 2616 return (error); 2617} 2618 2619int 2620freebsd32_cpuset_setid(struct thread *td, 2621 struct freebsd32_cpuset_setid_args *uap) 2622{ 2623 struct cpuset_setid_args ap; 2624 2625 ap.which = uap->which; 2626 ap.id = PAIR32TO64(id_t,uap->id); 2627 ap.setid = uap->setid; 2628 2629 return (sys_cpuset_setid(td, &ap)); 2630} 2631 2632int 2633freebsd32_cpuset_getid(struct thread *td, 2634 struct freebsd32_cpuset_getid_args *uap) 2635{ 2636 struct cpuset_getid_args ap; 2637 2638 ap.level = uap->level; 2639 ap.which = uap->which; 2640 ap.id = PAIR32TO64(id_t,uap->id); 2641 ap.setid = uap->setid; 2642 2643 return (sys_cpuset_getid(td, &ap)); 2644} 2645 2646int 2647freebsd32_cpuset_getaffinity(struct thread *td, 2648 struct freebsd32_cpuset_getaffinity_args *uap) 2649{ 2650 struct cpuset_getaffinity_args ap; 2651 2652 ap.level = uap->level; 2653 ap.which = uap->which; 2654 ap.id = PAIR32TO64(id_t,uap->id); 2655 ap.cpusetsize = uap->cpusetsize; 2656 ap.mask = uap->mask; 2657 2658 return (sys_cpuset_getaffinity(td, &ap)); 2659} 2660 2661int 2662freebsd32_cpuset_setaffinity(struct thread *td, 2663 struct freebsd32_cpuset_setaffinity_args *uap) 2664{ 2665 struct cpuset_setaffinity_args ap; 2666 2667 ap.level = uap->level; 2668 ap.which = uap->which; 2669 ap.id = PAIR32TO64(id_t,uap->id); 2670 ap.cpusetsize = uap->cpusetsize; 2671 ap.mask = uap->mask; 2672 2673 return (sys_cpuset_setaffinity(td, &ap)); 2674} 2675 2676int 2677freebsd32_nmount(struct thread *td, 2678 struct freebsd32_nmount_args /* { 2679 struct iovec *iovp; 2680 unsigned int iovcnt; 2681 int flags; 2682 } */ *uap) 2683{ 2684 struct uio *auio; 2685 uint64_t flags; 2686 int error; 2687 2688 /* 2689 * Mount flags are now 64-bits. On 32-bit archtectures only 2690 * 32-bits are passed in, but from here on everything handles 2691 * 64-bit flags correctly. 2692 */ 2693 flags = uap->flags; 2694 2695 AUDIT_ARG_FFLAGS(flags); 2696 2697 /* 2698 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2699 * userspace to set this flag, but we must filter it out if we want 2700 * MNT_UPDATE on the root file system to work. 2701 * MNT_ROOTFS should only be set by the kernel when mounting its 2702 * root file system. 2703 */ 2704 flags &= ~MNT_ROOTFS; 2705 2706 /* 2707 * check that we have an even number of iovec's 2708 * and that we have at least two options. 2709 */ 2710 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2711 return (EINVAL); 2712 2713 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2714 if (error) 2715 return (error); 2716 error = vfs_donmount(td, flags, auio); 2717 2718 free(auio, M_IOV); 2719 return error; 2720} 2721 2722#if 0 2723int 2724freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2725{ 2726 struct yyy32 *p32, s32; 2727 struct yyy *p = NULL, s; 2728 struct xxx_arg ap; 2729 int error; 2730 2731 if (uap->zzz) { 2732 error = copyin(uap->zzz, &s32, sizeof(s32)); 2733 if (error) 2734 return (error); 2735 /* translate in */ 2736 p = &s; 2737 } 2738 error = kern_xxx(td, p); 2739 if (error) 2740 return (error); 2741 if (uap->zzz) { 2742 /* translate out */ 2743 error = copyout(&s32, p32, sizeof(s32)); 2744 } 2745 return (error); 2746} 2747#endif 2748 2749int 2750syscall32_register(int *offset, struct sysent *new_sysent, 2751 struct sysent *old_sysent) 2752{ 2753 if (*offset == NO_SYSCALL) { 2754 int i; 2755 2756 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2757 if (freebsd32_sysent[i].sy_call == 2758 (sy_call_t *)lkmnosys) 2759 break; 2760 if (i == SYS_MAXSYSCALL) 2761 return (ENFILE); 2762 *offset = i; 2763 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2764 return (EINVAL); 2765 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2766 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2767 return (EEXIST); 2768 2769 *old_sysent = freebsd32_sysent[*offset]; 2770 freebsd32_sysent[*offset] = *new_sysent; 2771 return 0; 2772} 2773 2774int 2775syscall32_deregister(int *offset, struct sysent *old_sysent) 2776{ 2777 2778 if (*offset) 2779 freebsd32_sysent[*offset] = *old_sysent; 2780 return 0; 2781} 2782 2783int 2784syscall32_module_handler(struct module *mod, int what, void *arg) 2785{ 2786 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2787 modspecific_t ms; 2788 int error; 2789 2790 switch (what) { 2791 case MOD_LOAD: 2792 error = syscall32_register(data->offset, data->new_sysent, 2793 &data->old_sysent); 2794 if (error) { 2795 /* Leave a mark so we know to safely unload below. */ 2796 data->offset = NULL; 2797 return error; 2798 } 2799 ms.intval = *data->offset; 2800 MOD_XLOCK; 2801 module_setspecific(mod, &ms); 2802 MOD_XUNLOCK; 2803 if (data->chainevh) 2804 error = data->chainevh(mod, what, data->chainarg); 2805 return (error); 2806 case MOD_UNLOAD: 2807 /* 2808 * MOD_LOAD failed, so just return without calling the 2809 * chained handler since we didn't pass along the MOD_LOAD 2810 * event. 2811 */ 2812 if (data->offset == NULL) 2813 return (0); 2814 if (data->chainevh) { 2815 error = data->chainevh(mod, what, data->chainarg); 2816 if (error) 2817 return (error); 2818 } 2819 error = syscall32_deregister(data->offset, &data->old_sysent); 2820 return (error); 2821 default: 2822 error = EOPNOTSUPP; 2823 if (data->chainevh) 2824 error = data->chainevh(mod, what, data->chainarg); 2825 return (error); 2826 } 2827} 2828 2829int 2830syscall32_helper_register(struct syscall_helper_data *sd) 2831{ 2832 struct syscall_helper_data *sd1; 2833 int error; 2834 2835 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2836 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2837 &sd1->old_sysent); 2838 if (error != 0) { 2839 syscall32_helper_unregister(sd); 2840 return (error); 2841 } 2842 sd1->registered = 1; 2843 } 2844 return (0); 2845} 2846 2847int 2848syscall32_helper_unregister(struct syscall_helper_data *sd) 2849{ 2850 struct syscall_helper_data *sd1; 2851 2852 for (sd1 = sd; sd1->registered != 0; sd1++) { 2853 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2854 sd1->registered = 0; 2855 } 2856 return (0); 2857} 2858 2859register_t * 2860freebsd32_copyout_strings(struct image_params *imgp) 2861{ 2862 int argc, envc, i; 2863 u_int32_t *vectp; 2864 char *stringp; 2865 uintptr_t destp; 2866 u_int32_t *stack_base; 2867 struct freebsd32_ps_strings *arginfo; 2868 char canary[sizeof(long) * 8]; 2869 int32_t pagesizes32[MAXPAGESIZES]; 2870 size_t execpath_len; 2871 int szsigcode; 2872 2873 /* 2874 * Calculate string base and vector table pointers. 2875 * Also deal with signal trampoline code for this exec type. 2876 */ 2877 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2878 execpath_len = strlen(imgp->execpath) + 1; 2879 else 2880 execpath_len = 0; 2881 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2882 sv_psstrings; 2883 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2884 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2885 else 2886 szsigcode = 0; 2887 destp = (uintptr_t)arginfo; 2888 2889 /* 2890 * install sigcode 2891 */ 2892 if (szsigcode != 0) { 2893 destp -= szsigcode; 2894 destp = rounddown2(destp, sizeof(uint32_t)); 2895 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2896 szsigcode); 2897 } 2898 2899 /* 2900 * Copy the image path for the rtld. 2901 */ 2902 if (execpath_len != 0) { 2903 destp -= execpath_len; 2904 imgp->execpathp = destp; 2905 copyout(imgp->execpath, (void *)destp, execpath_len); 2906 } 2907 2908 /* 2909 * Prepare the canary for SSP. 2910 */ 2911 arc4rand(canary, sizeof(canary), 0); 2912 destp -= sizeof(canary); 2913 imgp->canary = destp; 2914 copyout(canary, (void *)destp, sizeof(canary)); 2915 imgp->canarylen = sizeof(canary); 2916 2917 /* 2918 * Prepare the pagesizes array. 2919 */ 2920 for (i = 0; i < MAXPAGESIZES; i++) 2921 pagesizes32[i] = (uint32_t)pagesizes[i]; 2922 destp -= sizeof(pagesizes32); 2923 destp = rounddown2(destp, sizeof(uint32_t)); 2924 imgp->pagesizes = destp; 2925 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2926 imgp->pagesizeslen = sizeof(pagesizes32); 2927 2928 destp -= ARG_MAX - imgp->args->stringspace; 2929 destp = rounddown2(destp, sizeof(uint32_t)); 2930 2931 /* 2932 * If we have a valid auxargs ptr, prepare some room 2933 * on the stack. 2934 */ 2935 if (imgp->auxargs) { 2936 /* 2937 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2938 * lower compatibility. 2939 */ 2940 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2941 : (AT_COUNT * 2); 2942 /* 2943 * The '+ 2' is for the null pointers at the end of each of 2944 * the arg and env vector sets,and imgp->auxarg_size is room 2945 * for argument of Runtime loader. 2946 */ 2947 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2948 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2949 sizeof(u_int32_t)); 2950 } else { 2951 /* 2952 * The '+ 2' is for the null pointers at the end of each of 2953 * the arg and env vector sets 2954 */ 2955 vectp = (u_int32_t *)(destp - (imgp->args->argc + 2956 imgp->args->envc + 2) * sizeof(u_int32_t)); 2957 } 2958 2959 /* 2960 * vectp also becomes our initial stack base 2961 */ 2962 stack_base = vectp; 2963 2964 stringp = imgp->args->begin_argv; 2965 argc = imgp->args->argc; 2966 envc = imgp->args->envc; 2967 /* 2968 * Copy out strings - arguments and environment. 2969 */ 2970 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2971 2972 /* 2973 * Fill in "ps_strings" struct for ps, w, etc. 2974 */ 2975 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2976 suword32(&arginfo->ps_nargvstr, argc); 2977 2978 /* 2979 * Fill in argument portion of vector table. 2980 */ 2981 for (; argc > 0; --argc) { 2982 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2983 while (*stringp++ != 0) 2984 destp++; 2985 destp++; 2986 } 2987 2988 /* a null vector table pointer separates the argp's from the envp's */ 2989 suword32(vectp++, 0); 2990 2991 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2992 suword32(&arginfo->ps_nenvstr, envc); 2993 2994 /* 2995 * Fill in environment portion of vector table. 2996 */ 2997 for (; envc > 0; --envc) { 2998 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2999 while (*stringp++ != 0) 3000 destp++; 3001 destp++; 3002 } 3003 3004 /* end of vector table is a null pointer */ 3005 suword32(vectp, 0); 3006 3007 return ((register_t *)stack_base); 3008} 3009 3010int 3011freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 3012{ 3013 struct kld_file_stat stat; 3014 struct kld32_file_stat stat32; 3015 int error, version; 3016 3017 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 3018 != 0) 3019 return (error); 3020 if (version != sizeof(struct kld32_file_stat_1) && 3021 version != sizeof(struct kld32_file_stat)) 3022 return (EINVAL); 3023 3024 error = kern_kldstat(td, uap->fileid, &stat); 3025 if (error != 0) 3026 return (error); 3027 3028 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name)); 3029 CP(stat, stat32, refs); 3030 CP(stat, stat32, id); 3031 PTROUT_CP(stat, stat32, address); 3032 CP(stat, stat32, size); 3033 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname)); 3034 return (copyout(&stat32, uap->stat, version)); 3035} 3036 3037int 3038freebsd32_posix_fallocate(struct thread *td, 3039 struct freebsd32_posix_fallocate_args *uap) 3040{ 3041 3042 td->td_retval[0] = kern_posix_fallocate(td, uap->fd, 3043 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 3044 return (0); 3045} 3046 3047int 3048freebsd32_posix_fadvise(struct thread *td, 3049 struct freebsd32_posix_fadvise_args *uap) 3050{ 3051 3052 td->td_retval[0] = kern_posix_fadvise(td, uap->fd, 3053 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len), 3054 uap->advice); 3055 return (0); 3056} 3057 3058int 3059convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 3060{ 3061 3062 CP(*sig32, *sig, sigev_notify); 3063 switch (sig->sigev_notify) { 3064 case SIGEV_NONE: 3065 break; 3066 case SIGEV_THREAD_ID: 3067 CP(*sig32, *sig, sigev_notify_thread_id); 3068 /* FALLTHROUGH */ 3069 case SIGEV_SIGNAL: 3070 CP(*sig32, *sig, sigev_signo); 3071 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3072 break; 3073 case SIGEV_KEVENT: 3074 CP(*sig32, *sig, sigev_notify_kqueue); 3075 CP(*sig32, *sig, sigev_notify_kevent_flags); 3076 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3077 break; 3078 default: 3079 return (EINVAL); 3080 } 3081 return (0); 3082} 3083 3084int 3085freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3086{ 3087 void *data; 3088 int error, flags; 3089 3090 switch (uap->com) { 3091 case PROC_SPROTECT: 3092 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3093 if (error) 3094 return (error); 3095 data = &flags; 3096 break; 3097 default: 3098 return (EINVAL); 3099 } 3100 return (kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3101 uap->com, data)); 3102} 3103