freebsd32_misc.c revision 210475
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 210475 2010-07-25 17:43:38Z alc $"); 29 30#include "opt_compat.h" 31#include "opt_inet.h" 32#include "opt_inet6.h" 33 34#define __ELF_WORD_SIZE 32 35 36#include <sys/param.h> 37#include <sys/bus.h> 38#include <sys/clock.h> 39#include <sys/exec.h> 40#include <sys/fcntl.h> 41#include <sys/filedesc.h> 42#include <sys/imgact.h> 43#include <sys/jail.h> 44#include <sys/kernel.h> 45#include <sys/limits.h> 46#include <sys/lock.h> 47#include <sys/malloc.h> 48#include <sys/file.h> /* Must come after sys/malloc.h */ 49#include <sys/imgact.h> 50#include <sys/mbuf.h> 51#include <sys/mman.h> 52#include <sys/module.h> 53#include <sys/mount.h> 54#include <sys/mutex.h> 55#include <sys/namei.h> 56#include <sys/proc.h> 57#include <sys/reboot.h> 58#include <sys/resource.h> 59#include <sys/resourcevar.h> 60#include <sys/selinfo.h> 61#include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 62#include <sys/pipe.h> /* Must come after sys/selinfo.h */ 63#include <sys/signal.h> 64#include <sys/signalvar.h> 65#include <sys/socket.h> 66#include <sys/socketvar.h> 67#include <sys/stat.h> 68#include <sys/syscall.h> 69#include <sys/syscallsubr.h> 70#include <sys/sysctl.h> 71#include <sys/sysent.h> 72#include <sys/sysproto.h> 73#include <sys/systm.h> 74#include <sys/thr.h> 75#include <sys/unistd.h> 76#include <sys/ucontext.h> 77#include <sys/vnode.h> 78#include <sys/wait.h> 79#include <sys/ipc.h> 80#include <sys/msg.h> 81#include <sys/sem.h> 82#include <sys/shm.h> 83 84#ifdef INET 85#include <netinet/in.h> 86#endif 87 88#include <vm/vm.h> 89#include <vm/vm_kern.h> 90#include <vm/vm_param.h> 91#include <vm/pmap.h> 92#include <vm/vm_map.h> 93#include <vm/vm_object.h> 94#include <vm/vm_extern.h> 95 96#include <machine/cpu.h> 97#include <machine/elf.h> 98 99#include <security/audit/audit.h> 100 101#include <compat/freebsd32/freebsd32_util.h> 102#include <compat/freebsd32/freebsd32.h> 103#include <compat/freebsd32/freebsd32_ipc.h> 104#include <compat/freebsd32/freebsd32_signal.h> 105#include <compat/freebsd32/freebsd32_proto.h> 106 107CTASSERT(sizeof(struct timeval32) == 8); 108CTASSERT(sizeof(struct timespec32) == 8); 109CTASSERT(sizeof(struct itimerval32) == 16); 110CTASSERT(sizeof(struct statfs32) == 256); 111CTASSERT(sizeof(struct rusage32) == 72); 112CTASSERT(sizeof(struct sigaltstack32) == 12); 113CTASSERT(sizeof(struct kevent32) == 20); 114CTASSERT(sizeof(struct iovec32) == 8); 115CTASSERT(sizeof(struct msghdr32) == 28); 116CTASSERT(sizeof(struct stat32) == 96); 117CTASSERT(sizeof(struct sigaction32) == 24); 118 119static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 120static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 121 122#if BYTE_ORDER == BIG_ENDIAN 123#define PAIR32TO64(type, name) ((name ## 2) | ((type)(name ## 1) << 32)) 124#define RETVAL_HI 0 125#define RETVAL_LO 1 126#else 127#define PAIR32TO64(type, name) ((name ## 1) | ((type)(name ## 2) << 32)) 128#define RETVAL_HI 1 129#define RETVAL_LO 0 130#endif 131 132void 133freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 134{ 135 136 TV_CP(*s, *s32, ru_utime); 137 TV_CP(*s, *s32, ru_stime); 138 CP(*s, *s32, ru_maxrss); 139 CP(*s, *s32, ru_ixrss); 140 CP(*s, *s32, ru_idrss); 141 CP(*s, *s32, ru_isrss); 142 CP(*s, *s32, ru_minflt); 143 CP(*s, *s32, ru_majflt); 144 CP(*s, *s32, ru_nswap); 145 CP(*s, *s32, ru_inblock); 146 CP(*s, *s32, ru_oublock); 147 CP(*s, *s32, ru_msgsnd); 148 CP(*s, *s32, ru_msgrcv); 149 CP(*s, *s32, ru_nsignals); 150 CP(*s, *s32, ru_nvcsw); 151 CP(*s, *s32, ru_nivcsw); 152} 153 154int 155freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 156{ 157 int error, status; 158 struct rusage32 ru32; 159 struct rusage ru, *rup; 160 161 if (uap->rusage != NULL) 162 rup = &ru; 163 else 164 rup = NULL; 165 error = kern_wait(td, uap->pid, &status, uap->options, rup); 166 if (error) 167 return (error); 168 if (uap->status != NULL) 169 error = copyout(&status, uap->status, sizeof(status)); 170 if (uap->rusage != NULL && error == 0) { 171 freebsd32_rusage_out(&ru, &ru32); 172 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 173 } 174 return (error); 175} 176 177#ifdef COMPAT_FREEBSD4 178static void 179copy_statfs(struct statfs *in, struct statfs32 *out) 180{ 181 182 statfs_scale_blocks(in, INT32_MAX); 183 bzero(out, sizeof(*out)); 184 CP(*in, *out, f_bsize); 185 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 186 CP(*in, *out, f_blocks); 187 CP(*in, *out, f_bfree); 188 CP(*in, *out, f_bavail); 189 out->f_files = MIN(in->f_files, INT32_MAX); 190 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 191 CP(*in, *out, f_fsid); 192 CP(*in, *out, f_owner); 193 CP(*in, *out, f_type); 194 CP(*in, *out, f_flags); 195 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 196 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 197 strlcpy(out->f_fstypename, 198 in->f_fstypename, MFSNAMELEN); 199 strlcpy(out->f_mntonname, 200 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 201 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 202 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 203 strlcpy(out->f_mntfromname, 204 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 205} 206#endif 207 208#ifdef COMPAT_FREEBSD4 209int 210freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 211{ 212 struct statfs *buf, *sp; 213 struct statfs32 stat32; 214 size_t count, size; 215 int error; 216 217 count = uap->bufsize / sizeof(struct statfs32); 218 size = count * sizeof(struct statfs); 219 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags); 220 if (size > 0) { 221 count = td->td_retval[0]; 222 sp = buf; 223 while (count > 0 && error == 0) { 224 copy_statfs(sp, &stat32); 225 error = copyout(&stat32, uap->buf, sizeof(stat32)); 226 sp++; 227 uap->buf++; 228 count--; 229 } 230 free(buf, M_TEMP); 231 } 232 return (error); 233} 234#endif 235 236int 237freebsd32_sigaltstack(struct thread *td, 238 struct freebsd32_sigaltstack_args *uap) 239{ 240 struct sigaltstack32 s32; 241 struct sigaltstack ss, oss, *ssp; 242 int error; 243 244 if (uap->ss != NULL) { 245 error = copyin(uap->ss, &s32, sizeof(s32)); 246 if (error) 247 return (error); 248 PTRIN_CP(s32, ss, ss_sp); 249 CP(s32, ss, ss_size); 250 CP(s32, ss, ss_flags); 251 ssp = &ss; 252 } else 253 ssp = NULL; 254 error = kern_sigaltstack(td, ssp, &oss); 255 if (error == 0 && uap->oss != NULL) { 256 PTROUT_CP(oss, s32, ss_sp); 257 CP(oss, s32, ss_size); 258 CP(oss, s32, ss_flags); 259 error = copyout(&s32, uap->oss, sizeof(s32)); 260 } 261 return (error); 262} 263 264/* 265 * Custom version of exec_copyin_args() so that we can translate 266 * the pointers. 267 */ 268int 269freebsd32_exec_copyin_args(struct image_args *args, char *fname, 270 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 271{ 272 char *argp, *envp; 273 u_int32_t *p32, arg; 274 size_t length; 275 int error; 276 277 bzero(args, sizeof(*args)); 278 if (argv == NULL) 279 return (EFAULT); 280 281 /* 282 * Allocate temporary demand zeroed space for argument and 283 * environment strings 284 */ 285 args->buf = (char *) kmem_alloc_wait(exec_map, 286 PATH_MAX + ARG_MAX + MAXSHELLCMDLEN); 287 if (args->buf == NULL) 288 return (ENOMEM); 289 290 /* 291 * Copy the file name. 292 */ 293 if (fname != NULL) { 294 args->fname = args->buf + MAXSHELLCMDLEN; 295 error = (segflg == UIO_SYSSPACE) ? 296 copystr(fname, args->fname, PATH_MAX, &length) : 297 copyinstr(fname, args->fname, PATH_MAX, &length); 298 if (error != 0) 299 goto err_exit; 300 } else 301 length = 0; 302 303 args->begin_argv = args->buf + MAXSHELLCMDLEN + length; 304 args->endp = args->begin_argv; 305 args->stringspace = ARG_MAX; 306 307 /* 308 * extract arguments first 309 */ 310 p32 = argv; 311 for (;;) { 312 error = copyin(p32++, &arg, sizeof(arg)); 313 if (error) 314 goto err_exit; 315 if (arg == 0) 316 break; 317 argp = PTRIN(arg); 318 error = copyinstr(argp, args->endp, args->stringspace, &length); 319 if (error) { 320 if (error == ENAMETOOLONG) 321 error = E2BIG; 322 goto err_exit; 323 } 324 args->stringspace -= length; 325 args->endp += length; 326 args->argc++; 327 } 328 329 args->begin_envv = args->endp; 330 331 /* 332 * extract environment strings 333 */ 334 if (envv) { 335 p32 = envv; 336 for (;;) { 337 error = copyin(p32++, &arg, sizeof(arg)); 338 if (error) 339 goto err_exit; 340 if (arg == 0) 341 break; 342 envp = PTRIN(arg); 343 error = copyinstr(envp, args->endp, args->stringspace, 344 &length); 345 if (error) { 346 if (error == ENAMETOOLONG) 347 error = E2BIG; 348 goto err_exit; 349 } 350 args->stringspace -= length; 351 args->endp += length; 352 args->envc++; 353 } 354 } 355 356 return (0); 357 358err_exit: 359 exec_free_args(args); 360 return (error); 361} 362 363int 364freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 365{ 366 struct image_args eargs; 367 int error; 368 369 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 370 uap->argv, uap->envv); 371 if (error == 0) 372 error = kern_execve(td, &eargs, NULL); 373 return (error); 374} 375 376int 377freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 378{ 379 struct image_args eargs; 380 int error; 381 382 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 383 uap->argv, uap->envv); 384 if (error == 0) { 385 eargs.fd = uap->fd; 386 error = kern_execve(td, &eargs, NULL); 387 } 388 return (error); 389} 390 391#ifdef __ia64__ 392static int 393freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 394 int prot, int fd, off_t pos) 395{ 396 vm_map_t map; 397 vm_map_entry_t entry; 398 int rv; 399 400 map = &td->td_proc->p_vmspace->vm_map; 401 if (fd != -1) 402 prot |= VM_PROT_WRITE; 403 404 if (vm_map_lookup_entry(map, start, &entry)) { 405 if ((entry->protection & prot) != prot) { 406 rv = vm_map_protect(map, 407 trunc_page(start), 408 round_page(end), 409 entry->protection | prot, 410 FALSE); 411 if (rv != KERN_SUCCESS) 412 return (EINVAL); 413 } 414 } else { 415 vm_offset_t addr = trunc_page(start); 416 rv = vm_map_find(map, 0, 0, 417 &addr, PAGE_SIZE, FALSE, prot, 418 VM_PROT_ALL, 0); 419 if (rv != KERN_SUCCESS) 420 return (EINVAL); 421 } 422 423 if (fd != -1) { 424 struct pread_args r; 425 r.fd = fd; 426 r.buf = (void *) start; 427 r.nbyte = end - start; 428 r.offset = pos; 429 return (pread(td, &r)); 430 } else { 431 while (start < end) { 432 subyte((void *) start, 0); 433 start++; 434 } 435 return (0); 436 } 437} 438#endif 439 440int 441freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 442{ 443 struct mmap_args ap; 444 vm_offset_t addr = (vm_offset_t) uap->addr; 445 vm_size_t len = uap->len; 446 int prot = uap->prot; 447 int flags = uap->flags; 448 int fd = uap->fd; 449 off_t pos = PAIR32TO64(off_t,uap->pos); 450#ifdef __ia64__ 451 vm_size_t pageoff; 452 int error; 453 454 /* 455 * Attempt to handle page size hassles. 456 */ 457 pageoff = (pos & PAGE_MASK); 458 if (flags & MAP_FIXED) { 459 vm_offset_t start, end; 460 start = addr; 461 end = addr + len; 462 463 if (start != trunc_page(start)) { 464 error = freebsd32_mmap_partial(td, start, 465 round_page(start), prot, 466 fd, pos); 467 if (fd != -1) 468 pos += round_page(start) - start; 469 start = round_page(start); 470 } 471 if (end != round_page(end)) { 472 vm_offset_t t = trunc_page(end); 473 error = freebsd32_mmap_partial(td, t, end, 474 prot, fd, 475 pos + t - start); 476 end = trunc_page(end); 477 } 478 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 479 /* 480 * We can't map this region at all. The specified 481 * address doesn't have the same alignment as the file 482 * position. Fake the mapping by simply reading the 483 * entire region into memory. First we need to make 484 * sure the region exists. 485 */ 486 vm_map_t map; 487 struct pread_args r; 488 int rv; 489 490 prot |= VM_PROT_WRITE; 491 map = &td->td_proc->p_vmspace->vm_map; 492 rv = vm_map_remove(map, start, end); 493 if (rv != KERN_SUCCESS) 494 return (EINVAL); 495 rv = vm_map_find(map, 0, 0, 496 &start, end - start, FALSE, 497 prot, VM_PROT_ALL, 0); 498 if (rv != KERN_SUCCESS) 499 return (EINVAL); 500 r.fd = fd; 501 r.buf = (void *) start; 502 r.nbyte = end - start; 503 r.offset = pos; 504 error = pread(td, &r); 505 if (error) 506 return (error); 507 508 td->td_retval[0] = addr; 509 return (0); 510 } 511 if (end == start) { 512 /* 513 * After dealing with the ragged ends, there 514 * might be none left. 515 */ 516 td->td_retval[0] = addr; 517 return (0); 518 } 519 addr = start; 520 len = end - start; 521 } 522#endif 523 524 ap.addr = (void *) addr; 525 ap.len = len; 526 ap.prot = prot; 527 ap.flags = flags; 528 ap.fd = fd; 529 ap.pos = pos; 530 531 return (mmap(td, &ap)); 532} 533 534#ifdef COMPAT_FREEBSD6 535int 536freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 537{ 538 struct freebsd32_mmap_args ap; 539 540 ap.addr = uap->addr; 541 ap.len = uap->len; 542 ap.prot = uap->prot; 543 ap.flags = uap->flags; 544 ap.fd = uap->fd; 545 ap.pos1 = uap->pos1; 546 ap.pos2 = uap->pos2; 547 548 return (freebsd32_mmap(td, &ap)); 549} 550#endif 551 552int 553freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 554{ 555 struct itimerval itv, oitv, *itvp; 556 struct itimerval32 i32; 557 int error; 558 559 if (uap->itv != NULL) { 560 error = copyin(uap->itv, &i32, sizeof(i32)); 561 if (error) 562 return (error); 563 TV_CP(i32, itv, it_interval); 564 TV_CP(i32, itv, it_value); 565 itvp = &itv; 566 } else 567 itvp = NULL; 568 error = kern_setitimer(td, uap->which, itvp, &oitv); 569 if (error || uap->oitv == NULL) 570 return (error); 571 TV_CP(oitv, i32, it_interval); 572 TV_CP(oitv, i32, it_value); 573 return (copyout(&i32, uap->oitv, sizeof(i32))); 574} 575 576int 577freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 578{ 579 struct itimerval itv; 580 struct itimerval32 i32; 581 int error; 582 583 error = kern_getitimer(td, uap->which, &itv); 584 if (error || uap->itv == NULL) 585 return (error); 586 TV_CP(itv, i32, it_interval); 587 TV_CP(itv, i32, it_value); 588 return (copyout(&i32, uap->itv, sizeof(i32))); 589} 590 591int 592freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 593{ 594 struct timeval32 tv32; 595 struct timeval tv, *tvp; 596 int error; 597 598 if (uap->tv != NULL) { 599 error = copyin(uap->tv, &tv32, sizeof(tv32)); 600 if (error) 601 return (error); 602 CP(tv32, tv, tv_sec); 603 CP(tv32, tv, tv_usec); 604 tvp = &tv; 605 } else 606 tvp = NULL; 607 /* 608 * XXX Do pointers need PTRIN()? 609 */ 610 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 611 sizeof(int32_t) * 8)); 612} 613 614int 615freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 616{ 617 struct timespec32 ts32; 618 struct timespec ts; 619 struct timeval tv, *tvp; 620 sigset_t set, *uset; 621 int error; 622 623 if (uap->ts != NULL) { 624 error = copyin(uap->ts, &ts32, sizeof(ts32)); 625 if (error != 0) 626 return (error); 627 CP(ts32, ts, tv_sec); 628 CP(ts32, ts, tv_nsec); 629 TIMESPEC_TO_TIMEVAL(&tv, &ts); 630 tvp = &tv; 631 } else 632 tvp = NULL; 633 if (uap->sm != NULL) { 634 error = copyin(uap->sm, &set, sizeof(set)); 635 if (error != 0) 636 return (error); 637 uset = &set; 638 } else 639 uset = NULL; 640 /* 641 * XXX Do pointers need PTRIN()? 642 */ 643 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 644 uset, sizeof(int32_t) * 8); 645 return (error); 646} 647 648/* 649 * Copy 'count' items into the destination list pointed to by uap->eventlist. 650 */ 651static int 652freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 653{ 654 struct freebsd32_kevent_args *uap; 655 struct kevent32 ks32[KQ_NEVENTS]; 656 int i, error = 0; 657 658 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 659 uap = (struct freebsd32_kevent_args *)arg; 660 661 for (i = 0; i < count; i++) { 662 CP(kevp[i], ks32[i], ident); 663 CP(kevp[i], ks32[i], filter); 664 CP(kevp[i], ks32[i], flags); 665 CP(kevp[i], ks32[i], fflags); 666 CP(kevp[i], ks32[i], data); 667 PTROUT_CP(kevp[i], ks32[i], udata); 668 } 669 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 670 if (error == 0) 671 uap->eventlist += count; 672 return (error); 673} 674 675/* 676 * Copy 'count' items from the list pointed to by uap->changelist. 677 */ 678static int 679freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 680{ 681 struct freebsd32_kevent_args *uap; 682 struct kevent32 ks32[KQ_NEVENTS]; 683 int i, error = 0; 684 685 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 686 uap = (struct freebsd32_kevent_args *)arg; 687 688 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 689 if (error) 690 goto done; 691 uap->changelist += count; 692 693 for (i = 0; i < count; i++) { 694 CP(ks32[i], kevp[i], ident); 695 CP(ks32[i], kevp[i], filter); 696 CP(ks32[i], kevp[i], flags); 697 CP(ks32[i], kevp[i], fflags); 698 CP(ks32[i], kevp[i], data); 699 PTRIN_CP(ks32[i], kevp[i], udata); 700 } 701done: 702 return (error); 703} 704 705int 706freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 707{ 708 struct timespec32 ts32; 709 struct timespec ts, *tsp; 710 struct kevent_copyops k_ops = { uap, 711 freebsd32_kevent_copyout, 712 freebsd32_kevent_copyin}; 713 int error; 714 715 716 if (uap->timeout) { 717 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 718 if (error) 719 return (error); 720 CP(ts32, ts, tv_sec); 721 CP(ts32, ts, tv_nsec); 722 tsp = &ts; 723 } else 724 tsp = NULL; 725 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 726 &k_ops, tsp); 727 return (error); 728} 729 730int 731freebsd32_gettimeofday(struct thread *td, 732 struct freebsd32_gettimeofday_args *uap) 733{ 734 struct timeval atv; 735 struct timeval32 atv32; 736 struct timezone rtz; 737 int error = 0; 738 739 if (uap->tp) { 740 microtime(&atv); 741 CP(atv, atv32, tv_sec); 742 CP(atv, atv32, tv_usec); 743 error = copyout(&atv32, uap->tp, sizeof (atv32)); 744 } 745 if (error == 0 && uap->tzp != NULL) { 746 rtz.tz_minuteswest = tz_minuteswest; 747 rtz.tz_dsttime = tz_dsttime; 748 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 749 } 750 return (error); 751} 752 753int 754freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 755{ 756 struct rusage32 s32; 757 struct rusage s; 758 int error; 759 760 error = kern_getrusage(td, uap->who, &s); 761 if (error) 762 return (error); 763 if (uap->rusage != NULL) { 764 freebsd32_rusage_out(&s, &s32); 765 error = copyout(&s32, uap->rusage, sizeof(s32)); 766 } 767 return (error); 768} 769 770static int 771freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 772{ 773 struct iovec32 iov32; 774 struct iovec *iov; 775 struct uio *uio; 776 u_int iovlen; 777 int error, i; 778 779 *uiop = NULL; 780 if (iovcnt > UIO_MAXIOV) 781 return (EINVAL); 782 iovlen = iovcnt * sizeof(struct iovec); 783 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 784 iov = (struct iovec *)(uio + 1); 785 for (i = 0; i < iovcnt; i++) { 786 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 787 if (error) { 788 free(uio, M_IOV); 789 return (error); 790 } 791 iov[i].iov_base = PTRIN(iov32.iov_base); 792 iov[i].iov_len = iov32.iov_len; 793 } 794 uio->uio_iov = iov; 795 uio->uio_iovcnt = iovcnt; 796 uio->uio_segflg = UIO_USERSPACE; 797 uio->uio_offset = -1; 798 uio->uio_resid = 0; 799 for (i = 0; i < iovcnt; i++) { 800 if (iov->iov_len > INT_MAX - uio->uio_resid) { 801 free(uio, M_IOV); 802 return (EINVAL); 803 } 804 uio->uio_resid += iov->iov_len; 805 iov++; 806 } 807 *uiop = uio; 808 return (0); 809} 810 811int 812freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 813{ 814 struct uio *auio; 815 int error; 816 817 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 818 if (error) 819 return (error); 820 error = kern_readv(td, uap->fd, auio); 821 free(auio, M_IOV); 822 return (error); 823} 824 825int 826freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 827{ 828 struct uio *auio; 829 int error; 830 831 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 832 if (error) 833 return (error); 834 error = kern_writev(td, uap->fd, auio); 835 free(auio, M_IOV); 836 return (error); 837} 838 839int 840freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 841{ 842 struct uio *auio; 843 int error; 844 845 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 846 if (error) 847 return (error); 848 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 849 free(auio, M_IOV); 850 return (error); 851} 852 853int 854freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 855{ 856 struct uio *auio; 857 int error; 858 859 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 860 if (error) 861 return (error); 862 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 863 free(auio, M_IOV); 864 return (error); 865} 866 867int 868freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 869 int error) 870{ 871 struct iovec32 iov32; 872 struct iovec *iov; 873 u_int iovlen; 874 int i; 875 876 *iovp = NULL; 877 if (iovcnt > UIO_MAXIOV) 878 return (error); 879 iovlen = iovcnt * sizeof(struct iovec); 880 iov = malloc(iovlen, M_IOV, M_WAITOK); 881 for (i = 0; i < iovcnt; i++) { 882 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 883 if (error) { 884 free(iov, M_IOV); 885 return (error); 886 } 887 iov[i].iov_base = PTRIN(iov32.iov_base); 888 iov[i].iov_len = iov32.iov_len; 889 } 890 *iovp = iov; 891 return (0); 892} 893 894static int 895freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 896{ 897 struct msghdr32 m32; 898 int error; 899 900 error = copyin(msg32, &m32, sizeof(m32)); 901 if (error) 902 return (error); 903 msg->msg_name = PTRIN(m32.msg_name); 904 msg->msg_namelen = m32.msg_namelen; 905 msg->msg_iov = PTRIN(m32.msg_iov); 906 msg->msg_iovlen = m32.msg_iovlen; 907 msg->msg_control = PTRIN(m32.msg_control); 908 msg->msg_controllen = m32.msg_controllen; 909 msg->msg_flags = m32.msg_flags; 910 return (0); 911} 912 913static int 914freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 915{ 916 struct msghdr32 m32; 917 int error; 918 919 m32.msg_name = PTROUT(msg->msg_name); 920 m32.msg_namelen = msg->msg_namelen; 921 m32.msg_iov = PTROUT(msg->msg_iov); 922 m32.msg_iovlen = msg->msg_iovlen; 923 m32.msg_control = PTROUT(msg->msg_control); 924 m32.msg_controllen = msg->msg_controllen; 925 m32.msg_flags = msg->msg_flags; 926 error = copyout(&m32, msg32, sizeof(m32)); 927 return (error); 928} 929 930#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 931#define FREEBSD32_ALIGN(p) \ 932 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 933#define FREEBSD32_CMSG_SPACE(l) \ 934 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 935 936#define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 937 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 938static int 939freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 940{ 941 struct cmsghdr *cm; 942 void *data; 943 socklen_t clen, datalen; 944 int error; 945 caddr_t ctlbuf; 946 int len, maxlen, copylen; 947 struct mbuf *m; 948 error = 0; 949 950 len = msg->msg_controllen; 951 maxlen = msg->msg_controllen; 952 msg->msg_controllen = 0; 953 954 m = control; 955 ctlbuf = msg->msg_control; 956 957 while (m && len > 0) { 958 cm = mtod(m, struct cmsghdr *); 959 clen = m->m_len; 960 961 while (cm != NULL) { 962 963 if (sizeof(struct cmsghdr) > clen || 964 cm->cmsg_len > clen) { 965 error = EINVAL; 966 break; 967 } 968 969 data = CMSG_DATA(cm); 970 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 971 972 /* Adjust message length */ 973 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 974 datalen; 975 976 977 /* Copy cmsghdr */ 978 copylen = sizeof(struct cmsghdr); 979 if (len < copylen) { 980 msg->msg_flags |= MSG_CTRUNC; 981 copylen = len; 982 } 983 984 error = copyout(cm,ctlbuf,copylen); 985 if (error) 986 goto exit; 987 988 ctlbuf += FREEBSD32_ALIGN(copylen); 989 len -= FREEBSD32_ALIGN(copylen); 990 991 if (len <= 0) 992 break; 993 994 /* Copy data */ 995 copylen = datalen; 996 if (len < copylen) { 997 msg->msg_flags |= MSG_CTRUNC; 998 copylen = len; 999 } 1000 1001 error = copyout(data,ctlbuf,copylen); 1002 if (error) 1003 goto exit; 1004 1005 ctlbuf += FREEBSD32_ALIGN(copylen); 1006 len -= FREEBSD32_ALIGN(copylen); 1007 1008 if (CMSG_SPACE(datalen) < clen) { 1009 clen -= CMSG_SPACE(datalen); 1010 cm = (struct cmsghdr *) 1011 ((caddr_t)cm + CMSG_SPACE(datalen)); 1012 } else { 1013 clen = 0; 1014 cm = NULL; 1015 } 1016 } 1017 m = m->m_next; 1018 } 1019 1020 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 1021 1022exit: 1023 return (error); 1024 1025} 1026 1027int 1028freebsd32_recvmsg(td, uap) 1029 struct thread *td; 1030 struct freebsd32_recvmsg_args /* { 1031 int s; 1032 struct msghdr32 *msg; 1033 int flags; 1034 } */ *uap; 1035{ 1036 struct msghdr msg; 1037 struct msghdr32 m32; 1038 struct iovec *uiov, *iov; 1039 struct mbuf *control = NULL; 1040 struct mbuf **controlp; 1041 1042 int error; 1043 error = copyin(uap->msg, &m32, sizeof(m32)); 1044 if (error) 1045 return (error); 1046 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1047 if (error) 1048 return (error); 1049 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1050 EMSGSIZE); 1051 if (error) 1052 return (error); 1053 msg.msg_flags = uap->flags; 1054 uiov = msg.msg_iov; 1055 msg.msg_iov = iov; 1056 1057 controlp = (msg.msg_control != NULL) ? &control : NULL; 1058 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1059 if (error == 0) { 1060 msg.msg_iov = uiov; 1061 1062 if (control != NULL) 1063 error = freebsd32_copy_msg_out(&msg, control); 1064 1065 if (error == 0) 1066 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1067 } 1068 free(iov, M_IOV); 1069 1070 if (control != NULL) 1071 m_freem(control); 1072 1073 return (error); 1074} 1075 1076 1077static int 1078freebsd32_convert_msg_in(struct mbuf **controlp) 1079{ 1080 struct mbuf *control = *controlp; 1081 struct cmsghdr *cm = mtod(control, struct cmsghdr *); 1082 void *data; 1083 socklen_t clen = control->m_len, datalen; 1084 int error; 1085 1086 error = 0; 1087 *controlp = NULL; 1088 1089 while (cm != NULL) { 1090 if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) { 1091 error = EINVAL; 1092 break; 1093 } 1094 1095 data = FREEBSD32_CMSG_DATA(cm); 1096 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1097 1098 *controlp = sbcreatecontrol(data, datalen, cm->cmsg_type, 1099 cm->cmsg_level); 1100 controlp = &(*controlp)->m_next; 1101 1102 if (FREEBSD32_CMSG_SPACE(datalen) < clen) { 1103 clen -= FREEBSD32_CMSG_SPACE(datalen); 1104 cm = (struct cmsghdr *) 1105 ((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen)); 1106 } else { 1107 clen = 0; 1108 cm = NULL; 1109 } 1110 } 1111 1112 m_freem(control); 1113 return (error); 1114} 1115 1116 1117int 1118freebsd32_sendmsg(struct thread *td, 1119 struct freebsd32_sendmsg_args *uap) 1120{ 1121 struct msghdr msg; 1122 struct msghdr32 m32; 1123 struct iovec *iov; 1124 struct mbuf *control = NULL; 1125 struct sockaddr *to = NULL; 1126 int error; 1127 1128 error = copyin(uap->msg, &m32, sizeof(m32)); 1129 if (error) 1130 return (error); 1131 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1132 if (error) 1133 return (error); 1134 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1135 EMSGSIZE); 1136 if (error) 1137 return (error); 1138 msg.msg_iov = iov; 1139 if (msg.msg_name != NULL) { 1140 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1141 if (error) { 1142 to = NULL; 1143 goto out; 1144 } 1145 msg.msg_name = to; 1146 } 1147 1148 if (msg.msg_control) { 1149 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1150 error = EINVAL; 1151 goto out; 1152 } 1153 1154 error = sockargs(&control, msg.msg_control, 1155 msg.msg_controllen, MT_CONTROL); 1156 if (error) 1157 goto out; 1158 1159 error = freebsd32_convert_msg_in(&control); 1160 if (error) 1161 goto out; 1162 } 1163 1164 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1165 UIO_USERSPACE); 1166 1167out: 1168 free(iov, M_IOV); 1169 if (to) 1170 free(to, M_SONAME); 1171 return (error); 1172} 1173 1174int 1175freebsd32_recvfrom(struct thread *td, 1176 struct freebsd32_recvfrom_args *uap) 1177{ 1178 struct msghdr msg; 1179 struct iovec aiov; 1180 int error; 1181 1182 if (uap->fromlenaddr) { 1183 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1184 sizeof(msg.msg_namelen)); 1185 if (error) 1186 return (error); 1187 } else { 1188 msg.msg_namelen = 0; 1189 } 1190 1191 msg.msg_name = PTRIN(uap->from); 1192 msg.msg_iov = &aiov; 1193 msg.msg_iovlen = 1; 1194 aiov.iov_base = PTRIN(uap->buf); 1195 aiov.iov_len = uap->len; 1196 msg.msg_control = NULL; 1197 msg.msg_flags = uap->flags; 1198 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1199 if (error == 0 && uap->fromlenaddr) 1200 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1201 sizeof (msg.msg_namelen)); 1202 return (error); 1203} 1204 1205int 1206freebsd32_settimeofday(struct thread *td, 1207 struct freebsd32_settimeofday_args *uap) 1208{ 1209 struct timeval32 tv32; 1210 struct timeval tv, *tvp; 1211 struct timezone tz, *tzp; 1212 int error; 1213 1214 if (uap->tv) { 1215 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1216 if (error) 1217 return (error); 1218 CP(tv32, tv, tv_sec); 1219 CP(tv32, tv, tv_usec); 1220 tvp = &tv; 1221 } else 1222 tvp = NULL; 1223 if (uap->tzp) { 1224 error = copyin(uap->tzp, &tz, sizeof(tz)); 1225 if (error) 1226 return (error); 1227 tzp = &tz; 1228 } else 1229 tzp = NULL; 1230 return (kern_settimeofday(td, tvp, tzp)); 1231} 1232 1233int 1234freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1235{ 1236 struct timeval32 s32[2]; 1237 struct timeval s[2], *sp; 1238 int error; 1239 1240 if (uap->tptr != NULL) { 1241 error = copyin(uap->tptr, s32, sizeof(s32)); 1242 if (error) 1243 return (error); 1244 CP(s32[0], s[0], tv_sec); 1245 CP(s32[0], s[0], tv_usec); 1246 CP(s32[1], s[1], tv_sec); 1247 CP(s32[1], s[1], tv_usec); 1248 sp = s; 1249 } else 1250 sp = NULL; 1251 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1252} 1253 1254int 1255freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1256{ 1257 struct timeval32 s32[2]; 1258 struct timeval s[2], *sp; 1259 int error; 1260 1261 if (uap->tptr != NULL) { 1262 error = copyin(uap->tptr, s32, sizeof(s32)); 1263 if (error) 1264 return (error); 1265 CP(s32[0], s[0], tv_sec); 1266 CP(s32[0], s[0], tv_usec); 1267 CP(s32[1], s[1], tv_sec); 1268 CP(s32[1], s[1], tv_usec); 1269 sp = s; 1270 } else 1271 sp = NULL; 1272 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1273} 1274 1275int 1276freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1277{ 1278 struct timeval32 s32[2]; 1279 struct timeval s[2], *sp; 1280 int error; 1281 1282 if (uap->tptr != NULL) { 1283 error = copyin(uap->tptr, s32, sizeof(s32)); 1284 if (error) 1285 return (error); 1286 CP(s32[0], s[0], tv_sec); 1287 CP(s32[0], s[0], tv_usec); 1288 CP(s32[1], s[1], tv_sec); 1289 CP(s32[1], s[1], tv_usec); 1290 sp = s; 1291 } else 1292 sp = NULL; 1293 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1294} 1295 1296int 1297freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1298{ 1299 struct timeval32 s32[2]; 1300 struct timeval s[2], *sp; 1301 int error; 1302 1303 if (uap->times != NULL) { 1304 error = copyin(uap->times, s32, sizeof(s32)); 1305 if (error) 1306 return (error); 1307 CP(s32[0], s[0], tv_sec); 1308 CP(s32[0], s[0], tv_usec); 1309 CP(s32[1], s[1], tv_sec); 1310 CP(s32[1], s[1], tv_usec); 1311 sp = s; 1312 } else 1313 sp = NULL; 1314 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1315 sp, UIO_SYSSPACE)); 1316} 1317 1318int 1319freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1320{ 1321 struct timeval32 tv32; 1322 struct timeval delta, olddelta, *deltap; 1323 int error; 1324 1325 if (uap->delta) { 1326 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1327 if (error) 1328 return (error); 1329 CP(tv32, delta, tv_sec); 1330 CP(tv32, delta, tv_usec); 1331 deltap = δ 1332 } else 1333 deltap = NULL; 1334 error = kern_adjtime(td, deltap, &olddelta); 1335 if (uap->olddelta && error == 0) { 1336 CP(olddelta, tv32, tv_sec); 1337 CP(olddelta, tv32, tv_usec); 1338 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1339 } 1340 return (error); 1341} 1342 1343#ifdef COMPAT_FREEBSD4 1344int 1345freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1346{ 1347 struct statfs32 s32; 1348 struct statfs s; 1349 int error; 1350 1351 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1352 if (error) 1353 return (error); 1354 copy_statfs(&s, &s32); 1355 return (copyout(&s32, uap->buf, sizeof(s32))); 1356} 1357#endif 1358 1359#ifdef COMPAT_FREEBSD4 1360int 1361freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1362{ 1363 struct statfs32 s32; 1364 struct statfs s; 1365 int error; 1366 1367 error = kern_fstatfs(td, uap->fd, &s); 1368 if (error) 1369 return (error); 1370 copy_statfs(&s, &s32); 1371 return (copyout(&s32, uap->buf, sizeof(s32))); 1372} 1373#endif 1374 1375#ifdef COMPAT_FREEBSD4 1376int 1377freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1378{ 1379 struct statfs32 s32; 1380 struct statfs s; 1381 fhandle_t fh; 1382 int error; 1383 1384 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1385 return (error); 1386 error = kern_fhstatfs(td, fh, &s); 1387 if (error) 1388 return (error); 1389 copy_statfs(&s, &s32); 1390 return (copyout(&s32, uap->buf, sizeof(s32))); 1391} 1392#endif 1393 1394int 1395freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1396{ 1397 struct pread_args ap; 1398 1399 ap.fd = uap->fd; 1400 ap.buf = uap->buf; 1401 ap.nbyte = uap->nbyte; 1402 ap.offset = PAIR32TO64(off_t,uap->offset); 1403 return (pread(td, &ap)); 1404} 1405 1406int 1407freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1408{ 1409 struct pwrite_args ap; 1410 1411 ap.fd = uap->fd; 1412 ap.buf = uap->buf; 1413 ap.nbyte = uap->nbyte; 1414 ap.offset = PAIR32TO64(off_t,uap->offset); 1415 return (pwrite(td, &ap)); 1416} 1417 1418int 1419freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1420{ 1421 int error; 1422 struct lseek_args ap; 1423 off_t pos; 1424 1425 ap.fd = uap->fd; 1426 ap.offset = PAIR32TO64(off_t,uap->offset); 1427 ap.whence = uap->whence; 1428 error = lseek(td, &ap); 1429 /* Expand the quad return into two parts for eax and edx */ 1430 pos = *(off_t *)(td->td_retval); 1431 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1432 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1433 return error; 1434} 1435 1436int 1437freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1438{ 1439 struct truncate_args ap; 1440 1441 ap.path = uap->path; 1442 ap.length = PAIR32TO64(off_t,uap->length); 1443 return (truncate(td, &ap)); 1444} 1445 1446int 1447freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1448{ 1449 struct ftruncate_args ap; 1450 1451 ap.fd = uap->fd; 1452 ap.length = PAIR32TO64(off_t,uap->length); 1453 return (ftruncate(td, &ap)); 1454} 1455 1456int 1457freebsd32_getdirentries(struct thread *td, 1458 struct freebsd32_getdirentries_args *uap) 1459{ 1460 long base; 1461 int32_t base32; 1462 int error; 1463 1464 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base); 1465 if (error) 1466 return (error); 1467 if (uap->basep != NULL) { 1468 base32 = base; 1469 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1470 } 1471 return (error); 1472} 1473 1474#ifdef COMPAT_FREEBSD6 1475/* versions with the 'int pad' argument */ 1476int 1477freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1478{ 1479 struct pread_args ap; 1480 1481 ap.fd = uap->fd; 1482 ap.buf = uap->buf; 1483 ap.nbyte = uap->nbyte; 1484 ap.offset = PAIR32TO64(off_t,uap->offset); 1485 return (pread(td, &ap)); 1486} 1487 1488int 1489freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1490{ 1491 struct pwrite_args ap; 1492 1493 ap.fd = uap->fd; 1494 ap.buf = uap->buf; 1495 ap.nbyte = uap->nbyte; 1496 ap.offset = PAIR32TO64(off_t,uap->offset); 1497 return (pwrite(td, &ap)); 1498} 1499 1500int 1501freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1502{ 1503 int error; 1504 struct lseek_args ap; 1505 off_t pos; 1506 1507 ap.fd = uap->fd; 1508 ap.offset = PAIR32TO64(off_t,uap->offset); 1509 ap.whence = uap->whence; 1510 error = lseek(td, &ap); 1511 /* Expand the quad return into two parts for eax and edx */ 1512 pos = *(off_t *)(td->td_retval); 1513 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1514 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1515 return error; 1516} 1517 1518int 1519freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1520{ 1521 struct truncate_args ap; 1522 1523 ap.path = uap->path; 1524 ap.length = PAIR32TO64(off_t,uap->length); 1525 return (truncate(td, &ap)); 1526} 1527 1528int 1529freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1530{ 1531 struct ftruncate_args ap; 1532 1533 ap.fd = uap->fd; 1534 ap.length = PAIR32TO64(off_t,uap->length); 1535 return (ftruncate(td, &ap)); 1536} 1537#endif /* COMPAT_FREEBSD6 */ 1538 1539struct sf_hdtr32 { 1540 uint32_t headers; 1541 int hdr_cnt; 1542 uint32_t trailers; 1543 int trl_cnt; 1544}; 1545 1546static int 1547freebsd32_do_sendfile(struct thread *td, 1548 struct freebsd32_sendfile_args *uap, int compat) 1549{ 1550 struct sendfile_args ap; 1551 struct sf_hdtr32 hdtr32; 1552 struct sf_hdtr hdtr; 1553 struct uio *hdr_uio, *trl_uio; 1554 struct iovec32 *iov32; 1555 int error; 1556 1557 hdr_uio = trl_uio = NULL; 1558 1559 ap.fd = uap->fd; 1560 ap.s = uap->s; 1561 ap.offset = PAIR32TO64(off_t,uap->offset); 1562 ap.nbytes = uap->nbytes; 1563 ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */ 1564 ap.sbytes = uap->sbytes; 1565 ap.flags = uap->flags; 1566 1567 if (uap->hdtr != NULL) { 1568 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1569 if (error) 1570 goto out; 1571 PTRIN_CP(hdtr32, hdtr, headers); 1572 CP(hdtr32, hdtr, hdr_cnt); 1573 PTRIN_CP(hdtr32, hdtr, trailers); 1574 CP(hdtr32, hdtr, trl_cnt); 1575 1576 if (hdtr.headers != NULL) { 1577 iov32 = PTRIN(hdtr32.headers); 1578 error = freebsd32_copyinuio(iov32, 1579 hdtr32.hdr_cnt, &hdr_uio); 1580 if (error) 1581 goto out; 1582 } 1583 if (hdtr.trailers != NULL) { 1584 iov32 = PTRIN(hdtr32.trailers); 1585 error = freebsd32_copyinuio(iov32, 1586 hdtr32.trl_cnt, &trl_uio); 1587 if (error) 1588 goto out; 1589 } 1590 } 1591 1592 error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat); 1593out: 1594 if (hdr_uio) 1595 free(hdr_uio, M_IOV); 1596 if (trl_uio) 1597 free(trl_uio, M_IOV); 1598 return (error); 1599} 1600 1601#ifdef COMPAT_FREEBSD4 1602int 1603freebsd4_freebsd32_sendfile(struct thread *td, 1604 struct freebsd4_freebsd32_sendfile_args *uap) 1605{ 1606 return (freebsd32_do_sendfile(td, 1607 (struct freebsd32_sendfile_args *)uap, 1)); 1608} 1609#endif 1610 1611int 1612freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1613{ 1614 1615 return (freebsd32_do_sendfile(td, uap, 0)); 1616} 1617 1618static void 1619copy_stat( struct stat *in, struct stat32 *out) 1620{ 1621 CP(*in, *out, st_dev); 1622 CP(*in, *out, st_ino); 1623 CP(*in, *out, st_mode); 1624 CP(*in, *out, st_nlink); 1625 CP(*in, *out, st_uid); 1626 CP(*in, *out, st_gid); 1627 CP(*in, *out, st_rdev); 1628 TS_CP(*in, *out, st_atim); 1629 TS_CP(*in, *out, st_mtim); 1630 TS_CP(*in, *out, st_ctim); 1631 CP(*in, *out, st_size); 1632 CP(*in, *out, st_blocks); 1633 CP(*in, *out, st_blksize); 1634 CP(*in, *out, st_flags); 1635 CP(*in, *out, st_gen); 1636} 1637 1638int 1639freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1640{ 1641 struct stat sb; 1642 struct stat32 sb32; 1643 int error; 1644 1645 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1646 if (error) 1647 return (error); 1648 copy_stat(&sb, &sb32); 1649 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1650 return (error); 1651} 1652 1653int 1654freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1655{ 1656 struct stat ub; 1657 struct stat32 ub32; 1658 int error; 1659 1660 error = kern_fstat(td, uap->fd, &ub); 1661 if (error) 1662 return (error); 1663 copy_stat(&ub, &ub32); 1664 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1665 return (error); 1666} 1667 1668int 1669freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1670{ 1671 struct stat ub; 1672 struct stat32 ub32; 1673 int error; 1674 1675 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1676 if (error) 1677 return (error); 1678 copy_stat(&ub, &ub32); 1679 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1680 return (error); 1681} 1682 1683int 1684freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1685{ 1686 struct stat sb; 1687 struct stat32 sb32; 1688 int error; 1689 1690 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1691 if (error) 1692 return (error); 1693 copy_stat(&sb, &sb32); 1694 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1695 return (error); 1696} 1697 1698/* 1699 * MPSAFE 1700 */ 1701int 1702freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1703{ 1704 int error, name[CTL_MAXNAME]; 1705 size_t j, oldlen; 1706 1707 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1708 return (EINVAL); 1709 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1710 if (error) 1711 return (error); 1712 if (uap->oldlenp) 1713 oldlen = fuword32(uap->oldlenp); 1714 else 1715 oldlen = 0; 1716 error = userland_sysctl(td, name, uap->namelen, 1717 uap->old, &oldlen, 1, 1718 uap->new, uap->newlen, &j, SCTL_MASK32); 1719 if (error && error != ENOMEM) 1720 return (error); 1721 if (uap->oldlenp) 1722 suword32(uap->oldlenp, j); 1723 return (0); 1724} 1725 1726int 1727freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1728{ 1729 uint32_t version; 1730 int error; 1731 struct jail j; 1732 1733 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1734 if (error) 1735 return (error); 1736 1737 switch (version) { 1738 case 0: 1739 { 1740 /* FreeBSD single IPv4 jails. */ 1741 struct jail32_v0 j32_v0; 1742 1743 bzero(&j, sizeof(struct jail)); 1744 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1745 if (error) 1746 return (error); 1747 CP(j32_v0, j, version); 1748 PTRIN_CP(j32_v0, j, path); 1749 PTRIN_CP(j32_v0, j, hostname); 1750 j.ip4s = j32_v0.ip_number; 1751 break; 1752 } 1753 1754 case 1: 1755 /* 1756 * Version 1 was used by multi-IPv4 jail implementations 1757 * that never made it into the official kernel. 1758 */ 1759 return (EINVAL); 1760 1761 case 2: /* JAIL_API_VERSION */ 1762 { 1763 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1764 struct jail32 j32; 1765 1766 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1767 if (error) 1768 return (error); 1769 CP(j32, j, version); 1770 PTRIN_CP(j32, j, path); 1771 PTRIN_CP(j32, j, hostname); 1772 PTRIN_CP(j32, j, jailname); 1773 CP(j32, j, ip4s); 1774 CP(j32, j, ip6s); 1775 PTRIN_CP(j32, j, ip4); 1776 PTRIN_CP(j32, j, ip6); 1777 break; 1778 } 1779 1780 default: 1781 /* Sci-Fi jails are not supported, sorry. */ 1782 return (EINVAL); 1783 } 1784 return (kern_jail(td, &j)); 1785} 1786 1787int 1788freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1789{ 1790 struct uio *auio; 1791 int error; 1792 1793 /* Check that we have an even number of iovecs. */ 1794 if (uap->iovcnt & 1) 1795 return (EINVAL); 1796 1797 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1798 if (error) 1799 return (error); 1800 error = kern_jail_set(td, auio, uap->flags); 1801 free(auio, M_IOV); 1802 return (error); 1803} 1804 1805int 1806freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1807{ 1808 struct iovec32 iov32; 1809 struct uio *auio; 1810 int error, i; 1811 1812 /* Check that we have an even number of iovecs. */ 1813 if (uap->iovcnt & 1) 1814 return (EINVAL); 1815 1816 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1817 if (error) 1818 return (error); 1819 error = kern_jail_get(td, auio, uap->flags); 1820 if (error == 0) 1821 for (i = 0; i < uap->iovcnt; i++) { 1822 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1823 CP(auio->uio_iov[i], iov32, iov_len); 1824 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1825 if (error != 0) 1826 break; 1827 } 1828 free(auio, M_IOV); 1829 return (error); 1830} 1831 1832int 1833freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1834{ 1835 struct sigaction32 s32; 1836 struct sigaction sa, osa, *sap; 1837 int error; 1838 1839 if (uap->act) { 1840 error = copyin(uap->act, &s32, sizeof(s32)); 1841 if (error) 1842 return (error); 1843 sa.sa_handler = PTRIN(s32.sa_u); 1844 CP(s32, sa, sa_flags); 1845 CP(s32, sa, sa_mask); 1846 sap = &sa; 1847 } else 1848 sap = NULL; 1849 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 1850 if (error == 0 && uap->oact != NULL) { 1851 s32.sa_u = PTROUT(osa.sa_handler); 1852 CP(osa, s32, sa_flags); 1853 CP(osa, s32, sa_mask); 1854 error = copyout(&s32, uap->oact, sizeof(s32)); 1855 } 1856 return (error); 1857} 1858 1859#ifdef COMPAT_FREEBSD4 1860int 1861freebsd4_freebsd32_sigaction(struct thread *td, 1862 struct freebsd4_freebsd32_sigaction_args *uap) 1863{ 1864 struct sigaction32 s32; 1865 struct sigaction sa, osa, *sap; 1866 int error; 1867 1868 if (uap->act) { 1869 error = copyin(uap->act, &s32, sizeof(s32)); 1870 if (error) 1871 return (error); 1872 sa.sa_handler = PTRIN(s32.sa_u); 1873 CP(s32, sa, sa_flags); 1874 CP(s32, sa, sa_mask); 1875 sap = &sa; 1876 } else 1877 sap = NULL; 1878 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 1879 if (error == 0 && uap->oact != NULL) { 1880 s32.sa_u = PTROUT(osa.sa_handler); 1881 CP(osa, s32, sa_flags); 1882 CP(osa, s32, sa_mask); 1883 error = copyout(&s32, uap->oact, sizeof(s32)); 1884 } 1885 return (error); 1886} 1887#endif 1888 1889#ifdef COMPAT_43 1890struct osigaction32 { 1891 u_int32_t sa_u; 1892 osigset_t sa_mask; 1893 int sa_flags; 1894}; 1895 1896#define ONSIG 32 1897 1898int 1899ofreebsd32_sigaction(struct thread *td, 1900 struct ofreebsd32_sigaction_args *uap) 1901{ 1902 struct osigaction32 s32; 1903 struct sigaction sa, osa, *sap; 1904 int error; 1905 1906 if (uap->signum <= 0 || uap->signum >= ONSIG) 1907 return (EINVAL); 1908 1909 if (uap->nsa) { 1910 error = copyin(uap->nsa, &s32, sizeof(s32)); 1911 if (error) 1912 return (error); 1913 sa.sa_handler = PTRIN(s32.sa_u); 1914 CP(s32, sa, sa_flags); 1915 OSIG2SIG(s32.sa_mask, sa.sa_mask); 1916 sap = &sa; 1917 } else 1918 sap = NULL; 1919 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 1920 if (error == 0 && uap->osa != NULL) { 1921 s32.sa_u = PTROUT(osa.sa_handler); 1922 CP(osa, s32, sa_flags); 1923 SIG2OSIG(osa.sa_mask, s32.sa_mask); 1924 error = copyout(&s32, uap->osa, sizeof(s32)); 1925 } 1926 return (error); 1927} 1928 1929int 1930ofreebsd32_sigprocmask(struct thread *td, 1931 struct ofreebsd32_sigprocmask_args *uap) 1932{ 1933 sigset_t set, oset; 1934 int error; 1935 1936 OSIG2SIG(uap->mask, set); 1937 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 1938 SIG2OSIG(oset, td->td_retval[0]); 1939 return (error); 1940} 1941 1942int 1943ofreebsd32_sigpending(struct thread *td, 1944 struct ofreebsd32_sigpending_args *uap) 1945{ 1946 struct proc *p = td->td_proc; 1947 sigset_t siglist; 1948 1949 PROC_LOCK(p); 1950 siglist = p->p_siglist; 1951 SIGSETOR(siglist, td->td_siglist); 1952 PROC_UNLOCK(p); 1953 SIG2OSIG(siglist, td->td_retval[0]); 1954 return (0); 1955} 1956 1957struct sigvec32 { 1958 u_int32_t sv_handler; 1959 int sv_mask; 1960 int sv_flags; 1961}; 1962 1963int 1964ofreebsd32_sigvec(struct thread *td, 1965 struct ofreebsd32_sigvec_args *uap) 1966{ 1967 struct sigvec32 vec; 1968 struct sigaction sa, osa, *sap; 1969 int error; 1970 1971 if (uap->signum <= 0 || uap->signum >= ONSIG) 1972 return (EINVAL); 1973 1974 if (uap->nsv) { 1975 error = copyin(uap->nsv, &vec, sizeof(vec)); 1976 if (error) 1977 return (error); 1978 sa.sa_handler = PTRIN(vec.sv_handler); 1979 OSIG2SIG(vec.sv_mask, sa.sa_mask); 1980 sa.sa_flags = vec.sv_flags; 1981 sa.sa_flags ^= SA_RESTART; 1982 sap = &sa; 1983 } else 1984 sap = NULL; 1985 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 1986 if (error == 0 && uap->osv != NULL) { 1987 vec.sv_handler = PTROUT(osa.sa_handler); 1988 SIG2OSIG(osa.sa_mask, vec.sv_mask); 1989 vec.sv_flags = osa.sa_flags; 1990 vec.sv_flags &= ~SA_NOCLDWAIT; 1991 vec.sv_flags ^= SA_RESTART; 1992 error = copyout(&vec, uap->osv, sizeof(vec)); 1993 } 1994 return (error); 1995} 1996 1997int 1998ofreebsd32_sigblock(struct thread *td, 1999 struct ofreebsd32_sigblock_args *uap) 2000{ 2001 sigset_t set, oset; 2002 2003 OSIG2SIG(uap->mask, set); 2004 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2005 SIG2OSIG(oset, td->td_retval[0]); 2006 return (0); 2007} 2008 2009int 2010ofreebsd32_sigsetmask(struct thread *td, 2011 struct ofreebsd32_sigsetmask_args *uap) 2012{ 2013 sigset_t set, oset; 2014 2015 OSIG2SIG(uap->mask, set); 2016 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2017 SIG2OSIG(oset, td->td_retval[0]); 2018 return (0); 2019} 2020 2021int 2022ofreebsd32_sigsuspend(struct thread *td, 2023 struct ofreebsd32_sigsuspend_args *uap) 2024{ 2025 sigset_t mask; 2026 2027 OSIG2SIG(uap->mask, mask); 2028 return (kern_sigsuspend(td, mask)); 2029} 2030 2031struct sigstack32 { 2032 u_int32_t ss_sp; 2033 int ss_onstack; 2034}; 2035 2036int 2037ofreebsd32_sigstack(struct thread *td, 2038 struct ofreebsd32_sigstack_args *uap) 2039{ 2040 struct sigstack32 s32; 2041 struct sigstack nss, oss; 2042 int error = 0, unss; 2043 2044 if (uap->nss != NULL) { 2045 error = copyin(uap->nss, &s32, sizeof(s32)); 2046 if (error) 2047 return (error); 2048 nss.ss_sp = PTRIN(s32.ss_sp); 2049 CP(s32, nss, ss_onstack); 2050 unss = 1; 2051 } else { 2052 unss = 0; 2053 } 2054 oss.ss_sp = td->td_sigstk.ss_sp; 2055 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2056 if (unss) { 2057 td->td_sigstk.ss_sp = nss.ss_sp; 2058 td->td_sigstk.ss_size = 0; 2059 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2060 td->td_pflags |= TDP_ALTSTACK; 2061 } 2062 if (uap->oss != NULL) { 2063 s32.ss_sp = PTROUT(oss.ss_sp); 2064 CP(oss, s32, ss_onstack); 2065 error = copyout(&s32, uap->oss, sizeof(s32)); 2066 } 2067 return (error); 2068} 2069#endif 2070 2071int 2072freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2073{ 2074 struct timespec32 rmt32, rqt32; 2075 struct timespec rmt, rqt; 2076 int error; 2077 2078 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2079 if (error) 2080 return (error); 2081 2082 CP(rqt32, rqt, tv_sec); 2083 CP(rqt32, rqt, tv_nsec); 2084 2085 if (uap->rmtp && 2086 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2087 return (EFAULT); 2088 error = kern_nanosleep(td, &rqt, &rmt); 2089 if (error && uap->rmtp) { 2090 int error2; 2091 2092 CP(rmt, rmt32, tv_sec); 2093 CP(rmt, rmt32, tv_nsec); 2094 2095 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2096 if (error2) 2097 error = error2; 2098 } 2099 return (error); 2100} 2101 2102int 2103freebsd32_clock_gettime(struct thread *td, 2104 struct freebsd32_clock_gettime_args *uap) 2105{ 2106 struct timespec ats; 2107 struct timespec32 ats32; 2108 int error; 2109 2110 error = kern_clock_gettime(td, uap->clock_id, &ats); 2111 if (error == 0) { 2112 CP(ats, ats32, tv_sec); 2113 CP(ats, ats32, tv_nsec); 2114 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2115 } 2116 return (error); 2117} 2118 2119int 2120freebsd32_clock_settime(struct thread *td, 2121 struct freebsd32_clock_settime_args *uap) 2122{ 2123 struct timespec ats; 2124 struct timespec32 ats32; 2125 int error; 2126 2127 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2128 if (error) 2129 return (error); 2130 CP(ats32, ats, tv_sec); 2131 CP(ats32, ats, tv_nsec); 2132 2133 return (kern_clock_settime(td, uap->clock_id, &ats)); 2134} 2135 2136int 2137freebsd32_clock_getres(struct thread *td, 2138 struct freebsd32_clock_getres_args *uap) 2139{ 2140 struct timespec ts; 2141 struct timespec32 ts32; 2142 int error; 2143 2144 if (uap->tp == NULL) 2145 return (0); 2146 error = kern_clock_getres(td, uap->clock_id, &ts); 2147 if (error == 0) { 2148 CP(ts, ts32, tv_sec); 2149 CP(ts, ts32, tv_nsec); 2150 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2151 } 2152 return (error); 2153} 2154 2155int 2156freebsd32_thr_new(struct thread *td, 2157 struct freebsd32_thr_new_args *uap) 2158{ 2159 struct thr_param32 param32; 2160 struct thr_param param; 2161 int error; 2162 2163 if (uap->param_size < 0 || 2164 uap->param_size > sizeof(struct thr_param32)) 2165 return (EINVAL); 2166 bzero(¶m, sizeof(struct thr_param)); 2167 bzero(¶m32, sizeof(struct thr_param32)); 2168 error = copyin(uap->param, ¶m32, uap->param_size); 2169 if (error != 0) 2170 return (error); 2171 param.start_func = PTRIN(param32.start_func); 2172 param.arg = PTRIN(param32.arg); 2173 param.stack_base = PTRIN(param32.stack_base); 2174 param.stack_size = param32.stack_size; 2175 param.tls_base = PTRIN(param32.tls_base); 2176 param.tls_size = param32.tls_size; 2177 param.child_tid = PTRIN(param32.child_tid); 2178 param.parent_tid = PTRIN(param32.parent_tid); 2179 param.flags = param32.flags; 2180 param.rtp = PTRIN(param32.rtp); 2181 param.spare[0] = PTRIN(param32.spare[0]); 2182 param.spare[1] = PTRIN(param32.spare[1]); 2183 param.spare[2] = PTRIN(param32.spare[2]); 2184 2185 return (kern_thr_new(td, ¶m)); 2186} 2187 2188int 2189freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2190{ 2191 struct timespec32 ts32; 2192 struct timespec ts, *tsp; 2193 int error; 2194 2195 error = 0; 2196 tsp = NULL; 2197 if (uap->timeout != NULL) { 2198 error = copyin((const void *)uap->timeout, (void *)&ts32, 2199 sizeof(struct timespec32)); 2200 if (error != 0) 2201 return (error); 2202 ts.tv_sec = ts32.tv_sec; 2203 ts.tv_nsec = ts32.tv_nsec; 2204 tsp = &ts; 2205 } 2206 return (kern_thr_suspend(td, tsp)); 2207} 2208 2209void 2210siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2211{ 2212 bzero(dst, sizeof(*dst)); 2213 dst->si_signo = src->si_signo; 2214 dst->si_errno = src->si_errno; 2215 dst->si_code = src->si_code; 2216 dst->si_pid = src->si_pid; 2217 dst->si_uid = src->si_uid; 2218 dst->si_status = src->si_status; 2219 dst->si_addr = (uintptr_t)src->si_addr; 2220 dst->si_value.sigval_int = src->si_value.sival_int; 2221 dst->si_timerid = src->si_timerid; 2222 dst->si_overrun = src->si_overrun; 2223} 2224 2225int 2226freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2227{ 2228 struct timespec32 ts32; 2229 struct timespec ts; 2230 struct timespec *timeout; 2231 sigset_t set; 2232 ksiginfo_t ksi; 2233 struct siginfo32 si32; 2234 int error; 2235 2236 if (uap->timeout) { 2237 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2238 if (error) 2239 return (error); 2240 ts.tv_sec = ts32.tv_sec; 2241 ts.tv_nsec = ts32.tv_nsec; 2242 timeout = &ts; 2243 } else 2244 timeout = NULL; 2245 2246 error = copyin(uap->set, &set, sizeof(set)); 2247 if (error) 2248 return (error); 2249 2250 error = kern_sigtimedwait(td, set, &ksi, timeout); 2251 if (error) 2252 return (error); 2253 2254 if (uap->info) { 2255 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2256 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2257 } 2258 2259 if (error == 0) 2260 td->td_retval[0] = ksi.ksi_signo; 2261 return (error); 2262} 2263 2264/* 2265 * MPSAFE 2266 */ 2267int 2268freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2269{ 2270 ksiginfo_t ksi; 2271 struct siginfo32 si32; 2272 sigset_t set; 2273 int error; 2274 2275 error = copyin(uap->set, &set, sizeof(set)); 2276 if (error) 2277 return (error); 2278 2279 error = kern_sigtimedwait(td, set, &ksi, NULL); 2280 if (error) 2281 return (error); 2282 2283 if (uap->info) { 2284 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2285 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2286 } 2287 if (error == 0) 2288 td->td_retval[0] = ksi.ksi_signo; 2289 return (error); 2290} 2291 2292int 2293freebsd32_cpuset_setid(struct thread *td, 2294 struct freebsd32_cpuset_setid_args *uap) 2295{ 2296 struct cpuset_setid_args ap; 2297 2298 ap.which = uap->which; 2299 ap.id = PAIR32TO64(id_t,uap->id); 2300 ap.setid = uap->setid; 2301 2302 return (cpuset_setid(td, &ap)); 2303} 2304 2305int 2306freebsd32_cpuset_getid(struct thread *td, 2307 struct freebsd32_cpuset_getid_args *uap) 2308{ 2309 struct cpuset_getid_args ap; 2310 2311 ap.level = uap->level; 2312 ap.which = uap->which; 2313 ap.id = PAIR32TO64(id_t,uap->id); 2314 ap.setid = uap->setid; 2315 2316 return (cpuset_getid(td, &ap)); 2317} 2318 2319int 2320freebsd32_cpuset_getaffinity(struct thread *td, 2321 struct freebsd32_cpuset_getaffinity_args *uap) 2322{ 2323 struct cpuset_getaffinity_args ap; 2324 2325 ap.level = uap->level; 2326 ap.which = uap->which; 2327 ap.id = PAIR32TO64(id_t,uap->id); 2328 ap.cpusetsize = uap->cpusetsize; 2329 ap.mask = uap->mask; 2330 2331 return (cpuset_getaffinity(td, &ap)); 2332} 2333 2334int 2335freebsd32_cpuset_setaffinity(struct thread *td, 2336 struct freebsd32_cpuset_setaffinity_args *uap) 2337{ 2338 struct cpuset_setaffinity_args ap; 2339 2340 ap.level = uap->level; 2341 ap.which = uap->which; 2342 ap.id = PAIR32TO64(id_t,uap->id); 2343 ap.cpusetsize = uap->cpusetsize; 2344 ap.mask = uap->mask; 2345 2346 return (cpuset_setaffinity(td, &ap)); 2347} 2348 2349int 2350freebsd32_nmount(struct thread *td, 2351 struct freebsd32_nmount_args /* { 2352 struct iovec *iovp; 2353 unsigned int iovcnt; 2354 int flags; 2355 } */ *uap) 2356{ 2357 struct uio *auio; 2358 int error; 2359 2360 AUDIT_ARG_FFLAGS(uap->flags); 2361 2362 /* 2363 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2364 * userspace to set this flag, but we must filter it out if we want 2365 * MNT_UPDATE on the root file system to work. 2366 * MNT_ROOTFS should only be set in the kernel in vfs_mountroot_try(). 2367 */ 2368 uap->flags &= ~MNT_ROOTFS; 2369 2370 /* 2371 * check that we have an even number of iovec's 2372 * and that we have at least two options. 2373 */ 2374 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2375 return (EINVAL); 2376 2377 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2378 if (error) 2379 return (error); 2380 error = vfs_donmount(td, uap->flags, auio); 2381 2382 free(auio, M_IOV); 2383 return error; 2384} 2385 2386#if 0 2387int 2388freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2389{ 2390 struct yyy32 *p32, s32; 2391 struct yyy *p = NULL, s; 2392 struct xxx_arg ap; 2393 int error; 2394 2395 if (uap->zzz) { 2396 error = copyin(uap->zzz, &s32, sizeof(s32)); 2397 if (error) 2398 return (error); 2399 /* translate in */ 2400 p = &s; 2401 } 2402 error = kern_xxx(td, p); 2403 if (error) 2404 return (error); 2405 if (uap->zzz) { 2406 /* translate out */ 2407 error = copyout(&s32, p32, sizeof(s32)); 2408 } 2409 return (error); 2410} 2411#endif 2412 2413int 2414syscall32_register(int *offset, struct sysent *new_sysent, 2415 struct sysent *old_sysent) 2416{ 2417 if (*offset == NO_SYSCALL) { 2418 int i; 2419 2420 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2421 if (freebsd32_sysent[i].sy_call == 2422 (sy_call_t *)lkmnosys) 2423 break; 2424 if (i == SYS_MAXSYSCALL) 2425 return (ENFILE); 2426 *offset = i; 2427 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2428 return (EINVAL); 2429 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2430 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2431 return (EEXIST); 2432 2433 *old_sysent = freebsd32_sysent[*offset]; 2434 freebsd32_sysent[*offset] = *new_sysent; 2435 return 0; 2436} 2437 2438int 2439syscall32_deregister(int *offset, struct sysent *old_sysent) 2440{ 2441 2442 if (*offset) 2443 freebsd32_sysent[*offset] = *old_sysent; 2444 return 0; 2445} 2446 2447int 2448syscall32_module_handler(struct module *mod, int what, void *arg) 2449{ 2450 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2451 modspecific_t ms; 2452 int error; 2453 2454 switch (what) { 2455 case MOD_LOAD: 2456 error = syscall32_register(data->offset, data->new_sysent, 2457 &data->old_sysent); 2458 if (error) { 2459 /* Leave a mark so we know to safely unload below. */ 2460 data->offset = NULL; 2461 return error; 2462 } 2463 ms.intval = *data->offset; 2464 MOD_XLOCK; 2465 module_setspecific(mod, &ms); 2466 MOD_XUNLOCK; 2467 if (data->chainevh) 2468 error = data->chainevh(mod, what, data->chainarg); 2469 return (error); 2470 case MOD_UNLOAD: 2471 /* 2472 * MOD_LOAD failed, so just return without calling the 2473 * chained handler since we didn't pass along the MOD_LOAD 2474 * event. 2475 */ 2476 if (data->offset == NULL) 2477 return (0); 2478 if (data->chainevh) { 2479 error = data->chainevh(mod, what, data->chainarg); 2480 if (error) 2481 return (error); 2482 } 2483 error = syscall32_deregister(data->offset, &data->old_sysent); 2484 return (error); 2485 default: 2486 error = EOPNOTSUPP; 2487 if (data->chainevh) 2488 error = data->chainevh(mod, what, data->chainarg); 2489 return (error); 2490 } 2491} 2492 2493int 2494syscall32_helper_register(struct syscall_helper_data *sd) 2495{ 2496 struct syscall_helper_data *sd1; 2497 int error; 2498 2499 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2500 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2501 &sd1->old_sysent); 2502 if (error != 0) { 2503 syscall32_helper_unregister(sd); 2504 return (error); 2505 } 2506 sd1->registered = 1; 2507 } 2508 return (0); 2509} 2510 2511int 2512syscall32_helper_unregister(struct syscall_helper_data *sd) 2513{ 2514 struct syscall_helper_data *sd1; 2515 2516 for (sd1 = sd; sd1->registered != 0; sd1++) { 2517 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2518 sd1->registered = 0; 2519 } 2520 return (0); 2521} 2522 2523register_t * 2524freebsd32_copyout_strings(struct image_params *imgp) 2525{ 2526 int argc, envc; 2527 u_int32_t *vectp; 2528 char *stringp, *destp; 2529 u_int32_t *stack_base; 2530 struct freebsd32_ps_strings *arginfo; 2531 size_t execpath_len; 2532 int szsigcode; 2533 2534 /* 2535 * Calculate string base and vector table pointers. 2536 * Also deal with signal trampoline code for this exec type. 2537 */ 2538 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2539 execpath_len = strlen(imgp->execpath) + 1; 2540 else 2541 execpath_len = 0; 2542 arginfo = (struct freebsd32_ps_strings *)FREEBSD32_PS_STRINGS; 2543 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2544 destp = (caddr_t)arginfo - szsigcode - SPARE_USRSPACE - 2545 roundup(execpath_len, sizeof(char *)) - 2546 roundup((ARG_MAX - imgp->args->stringspace), sizeof(char *)); 2547 2548 /* 2549 * install sigcode 2550 */ 2551 if (szsigcode) 2552 copyout(imgp->proc->p_sysent->sv_sigcode, 2553 ((caddr_t)arginfo - szsigcode), szsigcode); 2554 2555 /* 2556 * Copy the image path for the rtld. 2557 */ 2558 if (execpath_len != 0) { 2559 imgp->execpathp = (uintptr_t)arginfo - szsigcode - execpath_len; 2560 copyout(imgp->execpath, (void *)imgp->execpathp, 2561 execpath_len); 2562 } 2563 2564 /* 2565 * If we have a valid auxargs ptr, prepare some room 2566 * on the stack. 2567 */ 2568 if (imgp->auxargs) { 2569 /* 2570 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2571 * lower compatibility. 2572 */ 2573 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2574 : (AT_COUNT * 2); 2575 /* 2576 * The '+ 2' is for the null pointers at the end of each of 2577 * the arg and env vector sets,and imgp->auxarg_size is room 2578 * for argument of Runtime loader. 2579 */ 2580 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2581 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2582 sizeof(u_int32_t)); 2583 } else 2584 /* 2585 * The '+ 2' is for the null pointers at the end of each of 2586 * the arg and env vector sets 2587 */ 2588 vectp = (u_int32_t *) 2589 (destp - (imgp->args->argc + imgp->args->envc + 2) * sizeof(u_int32_t)); 2590 2591 /* 2592 * vectp also becomes our initial stack base 2593 */ 2594 stack_base = vectp; 2595 2596 stringp = imgp->args->begin_argv; 2597 argc = imgp->args->argc; 2598 envc = imgp->args->envc; 2599 /* 2600 * Copy out strings - arguments and environment. 2601 */ 2602 copyout(stringp, destp, ARG_MAX - imgp->args->stringspace); 2603 2604 /* 2605 * Fill in "ps_strings" struct for ps, w, etc. 2606 */ 2607 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2608 suword32(&arginfo->ps_nargvstr, argc); 2609 2610 /* 2611 * Fill in argument portion of vector table. 2612 */ 2613 for (; argc > 0; --argc) { 2614 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2615 while (*stringp++ != 0) 2616 destp++; 2617 destp++; 2618 } 2619 2620 /* a null vector table pointer separates the argp's from the envp's */ 2621 suword32(vectp++, 0); 2622 2623 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2624 suword32(&arginfo->ps_nenvstr, envc); 2625 2626 /* 2627 * Fill in environment portion of vector table. 2628 */ 2629 for (; envc > 0; --envc) { 2630 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2631 while (*stringp++ != 0) 2632 destp++; 2633 destp++; 2634 } 2635 2636 /* end of vector table is a null pointer */ 2637 suword32(vectp, 0); 2638 2639 return ((register_t *)stack_base); 2640} 2641 2642