freebsd32_misc.c revision 226347
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 226347 2011-10-13 18:18:42Z 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/clock.h> 39#include <sys/exec.h> 40#include <sys/fcntl.h> 41#include <sys/filedesc.h> 42#include <sys/imgact.h> 43#include <sys/jail.h> 44#include <sys/kernel.h> 45#include <sys/limits.h> 46#include <sys/linker.h> 47#include <sys/lock.h> 48#include <sys/malloc.h> 49#include <sys/file.h> /* Must come after sys/malloc.h */ 50#include <sys/imgact.h> 51#include <sys/mbuf.h> 52#include <sys/mman.h> 53#include <sys/module.h> 54#include <sys/mount.h> 55#include <sys/mutex.h> 56#include <sys/namei.h> 57#include <sys/proc.h> 58#include <sys/reboot.h> 59#include <sys/resource.h> 60#include <sys/resourcevar.h> 61#include <sys/selinfo.h> 62#include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 63#include <sys/pipe.h> /* Must come after sys/selinfo.h */ 64#include <sys/signal.h> 65#include <sys/signalvar.h> 66#include <sys/socket.h> 67#include <sys/socketvar.h> 68#include <sys/stat.h> 69#include <sys/syscall.h> 70#include <sys/syscallsubr.h> 71#include <sys/sysctl.h> 72#include <sys/sysent.h> 73#include <sys/sysproto.h> 74#include <sys/systm.h> 75#include <sys/thr.h> 76#include <sys/unistd.h> 77#include <sys/ucontext.h> 78#include <sys/vnode.h> 79#include <sys/wait.h> 80#include <sys/ipc.h> 81#include <sys/msg.h> 82#include <sys/sem.h> 83#include <sys/shm.h> 84 85#ifdef INET 86#include <netinet/in.h> 87#endif 88 89#include <vm/vm.h> 90#include <vm/vm_param.h> 91#include <vm/pmap.h> 92#include <vm/vm_map.h> 93#include <vm/vm_object.h> 94#include <vm/vm_extern.h> 95 96#include <machine/cpu.h> 97#include <machine/elf.h> 98 99#include <security/audit/audit.h> 100 101#include <compat/freebsd32/freebsd32_util.h> 102#include <compat/freebsd32/freebsd32.h> 103#include <compat/freebsd32/freebsd32_ipc.h> 104#include <compat/freebsd32/freebsd32_signal.h> 105#include <compat/freebsd32/freebsd32_proto.h> 106 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 demand-paged memory for the file name, argument, and 283 * environment strings. 284 */ 285 error = exec_alloc_args(args); 286 if (error != 0) 287 return (error); 288 289 /* 290 * Copy the file name. 291 */ 292 if (fname != NULL) { 293 args->fname = args->buf; 294 error = (segflg == UIO_SYSSPACE) ? 295 copystr(fname, args->fname, PATH_MAX, &length) : 296 copyinstr(fname, args->fname, PATH_MAX, &length); 297 if (error != 0) 298 goto err_exit; 299 } else 300 length = 0; 301 302 args->begin_argv = args->buf + length; 303 args->endp = args->begin_argv; 304 args->stringspace = ARG_MAX; 305 306 /* 307 * extract arguments first 308 */ 309 p32 = argv; 310 for (;;) { 311 error = copyin(p32++, &arg, sizeof(arg)); 312 if (error) 313 goto err_exit; 314 if (arg == 0) 315 break; 316 argp = PTRIN(arg); 317 error = copyinstr(argp, args->endp, args->stringspace, &length); 318 if (error) { 319 if (error == ENAMETOOLONG) 320 error = E2BIG; 321 goto err_exit; 322 } 323 args->stringspace -= length; 324 args->endp += length; 325 args->argc++; 326 } 327 328 args->begin_envv = args->endp; 329 330 /* 331 * extract environment strings 332 */ 333 if (envv) { 334 p32 = envv; 335 for (;;) { 336 error = copyin(p32++, &arg, sizeof(arg)); 337 if (error) 338 goto err_exit; 339 if (arg == 0) 340 break; 341 envp = PTRIN(arg); 342 error = copyinstr(envp, args->endp, args->stringspace, 343 &length); 344 if (error) { 345 if (error == ENAMETOOLONG) 346 error = E2BIG; 347 goto err_exit; 348 } 349 args->stringspace -= length; 350 args->endp += length; 351 args->envc++; 352 } 353 } 354 355 return (0); 356 357err_exit: 358 exec_free_args(args); 359 return (error); 360} 361 362int 363freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 364{ 365 struct image_args eargs; 366 int error; 367 368 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 369 uap->argv, uap->envv); 370 if (error == 0) 371 error = kern_execve(td, &eargs, NULL); 372 return (error); 373} 374 375int 376freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 377{ 378 struct image_args eargs; 379 int error; 380 381 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 382 uap->argv, uap->envv); 383 if (error == 0) { 384 eargs.fd = uap->fd; 385 error = kern_execve(td, &eargs, NULL); 386 } 387 return (error); 388} 389 390#ifdef __ia64__ 391static int 392freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 393 int prot, int fd, off_t pos) 394{ 395 vm_map_t map; 396 vm_map_entry_t entry; 397 int rv; 398 399 map = &td->td_proc->p_vmspace->vm_map; 400 if (fd != -1) 401 prot |= VM_PROT_WRITE; 402 403 if (vm_map_lookup_entry(map, start, &entry)) { 404 if ((entry->protection & prot) != prot) { 405 rv = vm_map_protect(map, 406 trunc_page(start), 407 round_page(end), 408 entry->protection | prot, 409 FALSE); 410 if (rv != KERN_SUCCESS) 411 return (EINVAL); 412 } 413 } else { 414 vm_offset_t addr = trunc_page(start); 415 rv = vm_map_find(map, 0, 0, 416 &addr, PAGE_SIZE, FALSE, prot, 417 VM_PROT_ALL, 0); 418 if (rv != KERN_SUCCESS) 419 return (EINVAL); 420 } 421 422 if (fd != -1) { 423 struct pread_args r; 424 r.fd = fd; 425 r.buf = (void *) start; 426 r.nbyte = end - start; 427 r.offset = pos; 428 return (sys_pread(td, &r)); 429 } else { 430 while (start < end) { 431 subyte((void *) start, 0); 432 start++; 433 } 434 return (0); 435 } 436} 437#endif 438 439int 440freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 441{ 442 struct mmap_args ap; 443 vm_offset_t addr = (vm_offset_t) uap->addr; 444 vm_size_t len = uap->len; 445 int prot = uap->prot; 446 int flags = uap->flags; 447 int fd = uap->fd; 448 off_t pos = PAIR32TO64(off_t,uap->pos); 449#ifdef __ia64__ 450 vm_size_t pageoff; 451 int error; 452 453 /* 454 * Attempt to handle page size hassles. 455 */ 456 pageoff = (pos & PAGE_MASK); 457 if (flags & MAP_FIXED) { 458 vm_offset_t start, end; 459 start = addr; 460 end = addr + len; 461 462 if (start != trunc_page(start)) { 463 error = freebsd32_mmap_partial(td, start, 464 round_page(start), prot, 465 fd, pos); 466 if (fd != -1) 467 pos += round_page(start) - start; 468 start = round_page(start); 469 } 470 if (end != round_page(end)) { 471 vm_offset_t t = trunc_page(end); 472 error = freebsd32_mmap_partial(td, t, end, 473 prot, fd, 474 pos + t - start); 475 end = trunc_page(end); 476 } 477 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 478 /* 479 * We can't map this region at all. The specified 480 * address doesn't have the same alignment as the file 481 * position. Fake the mapping by simply reading the 482 * entire region into memory. First we need to make 483 * sure the region exists. 484 */ 485 vm_map_t map; 486 struct pread_args r; 487 int rv; 488 489 prot |= VM_PROT_WRITE; 490 map = &td->td_proc->p_vmspace->vm_map; 491 rv = vm_map_remove(map, start, end); 492 if (rv != KERN_SUCCESS) 493 return (EINVAL); 494 rv = vm_map_find(map, 0, 0, 495 &start, end - start, FALSE, 496 prot, VM_PROT_ALL, 0); 497 if (rv != KERN_SUCCESS) 498 return (EINVAL); 499 r.fd = fd; 500 r.buf = (void *) start; 501 r.nbyte = end - start; 502 r.offset = pos; 503 error = sys_pread(td, &r); 504 if (error) 505 return (error); 506 507 td->td_retval[0] = addr; 508 return (0); 509 } 510 if (end == start) { 511 /* 512 * After dealing with the ragged ends, there 513 * might be none left. 514 */ 515 td->td_retval[0] = addr; 516 return (0); 517 } 518 addr = start; 519 len = end - start; 520 } 521#endif 522 523#if defined(__amd64__) || defined(__ia64__) 524 if (prot & PROT_READ) 525 prot |= PROT_EXEC; 526#endif 527 528 ap.addr = (void *) addr; 529 ap.len = len; 530 ap.prot = prot; 531 ap.flags = flags; 532 ap.fd = fd; 533 ap.pos = pos; 534 535 return (sys_mmap(td, &ap)); 536} 537 538#ifdef COMPAT_FREEBSD6 539int 540freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 541{ 542 struct freebsd32_mmap_args ap; 543 544 ap.addr = uap->addr; 545 ap.len = uap->len; 546 ap.prot = uap->prot; 547 ap.flags = uap->flags; 548 ap.fd = uap->fd; 549 ap.pos1 = uap->pos1; 550 ap.pos2 = uap->pos2; 551 552 return (freebsd32_mmap(td, &ap)); 553} 554#endif 555 556int 557freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 558{ 559 struct itimerval itv, oitv, *itvp; 560 struct itimerval32 i32; 561 int error; 562 563 if (uap->itv != NULL) { 564 error = copyin(uap->itv, &i32, sizeof(i32)); 565 if (error) 566 return (error); 567 TV_CP(i32, itv, it_interval); 568 TV_CP(i32, itv, it_value); 569 itvp = &itv; 570 } else 571 itvp = NULL; 572 error = kern_setitimer(td, uap->which, itvp, &oitv); 573 if (error || uap->oitv == NULL) 574 return (error); 575 TV_CP(oitv, i32, it_interval); 576 TV_CP(oitv, i32, it_value); 577 return (copyout(&i32, uap->oitv, sizeof(i32))); 578} 579 580int 581freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 582{ 583 struct itimerval itv; 584 struct itimerval32 i32; 585 int error; 586 587 error = kern_getitimer(td, uap->which, &itv); 588 if (error || uap->itv == NULL) 589 return (error); 590 TV_CP(itv, i32, it_interval); 591 TV_CP(itv, i32, it_value); 592 return (copyout(&i32, uap->itv, sizeof(i32))); 593} 594 595int 596freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 597{ 598 struct timeval32 tv32; 599 struct timeval tv, *tvp; 600 int error; 601 602 if (uap->tv != NULL) { 603 error = copyin(uap->tv, &tv32, sizeof(tv32)); 604 if (error) 605 return (error); 606 CP(tv32, tv, tv_sec); 607 CP(tv32, tv, tv_usec); 608 tvp = &tv; 609 } else 610 tvp = NULL; 611 /* 612 * XXX Do pointers need PTRIN()? 613 */ 614 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 615 sizeof(int32_t) * 8)); 616} 617 618int 619freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 620{ 621 struct timespec32 ts32; 622 struct timespec ts; 623 struct timeval tv, *tvp; 624 sigset_t set, *uset; 625 int error; 626 627 if (uap->ts != NULL) { 628 error = copyin(uap->ts, &ts32, sizeof(ts32)); 629 if (error != 0) 630 return (error); 631 CP(ts32, ts, tv_sec); 632 CP(ts32, ts, tv_nsec); 633 TIMESPEC_TO_TIMEVAL(&tv, &ts); 634 tvp = &tv; 635 } else 636 tvp = NULL; 637 if (uap->sm != NULL) { 638 error = copyin(uap->sm, &set, sizeof(set)); 639 if (error != 0) 640 return (error); 641 uset = &set; 642 } else 643 uset = NULL; 644 /* 645 * XXX Do pointers need PTRIN()? 646 */ 647 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 648 uset, sizeof(int32_t) * 8); 649 return (error); 650} 651 652/* 653 * Copy 'count' items into the destination list pointed to by uap->eventlist. 654 */ 655static int 656freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 657{ 658 struct freebsd32_kevent_args *uap; 659 struct kevent32 ks32[KQ_NEVENTS]; 660 int i, error = 0; 661 662 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 663 uap = (struct freebsd32_kevent_args *)arg; 664 665 for (i = 0; i < count; i++) { 666 CP(kevp[i], ks32[i], ident); 667 CP(kevp[i], ks32[i], filter); 668 CP(kevp[i], ks32[i], flags); 669 CP(kevp[i], ks32[i], fflags); 670 CP(kevp[i], ks32[i], data); 671 PTROUT_CP(kevp[i], ks32[i], udata); 672 } 673 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 674 if (error == 0) 675 uap->eventlist += count; 676 return (error); 677} 678 679/* 680 * Copy 'count' items from the list pointed to by uap->changelist. 681 */ 682static int 683freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 684{ 685 struct freebsd32_kevent_args *uap; 686 struct kevent32 ks32[KQ_NEVENTS]; 687 int i, error = 0; 688 689 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 690 uap = (struct freebsd32_kevent_args *)arg; 691 692 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 693 if (error) 694 goto done; 695 uap->changelist += count; 696 697 for (i = 0; i < count; i++) { 698 CP(ks32[i], kevp[i], ident); 699 CP(ks32[i], kevp[i], filter); 700 CP(ks32[i], kevp[i], flags); 701 CP(ks32[i], kevp[i], fflags); 702 CP(ks32[i], kevp[i], data); 703 PTRIN_CP(ks32[i], kevp[i], udata); 704 } 705done: 706 return (error); 707} 708 709int 710freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 711{ 712 struct timespec32 ts32; 713 struct timespec ts, *tsp; 714 struct kevent_copyops k_ops = { uap, 715 freebsd32_kevent_copyout, 716 freebsd32_kevent_copyin}; 717 int error; 718 719 720 if (uap->timeout) { 721 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 722 if (error) 723 return (error); 724 CP(ts32, ts, tv_sec); 725 CP(ts32, ts, tv_nsec); 726 tsp = &ts; 727 } else 728 tsp = NULL; 729 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 730 &k_ops, tsp); 731 return (error); 732} 733 734int 735freebsd32_gettimeofday(struct thread *td, 736 struct freebsd32_gettimeofday_args *uap) 737{ 738 struct timeval atv; 739 struct timeval32 atv32; 740 struct timezone rtz; 741 int error = 0; 742 743 if (uap->tp) { 744 microtime(&atv); 745 CP(atv, atv32, tv_sec); 746 CP(atv, atv32, tv_usec); 747 error = copyout(&atv32, uap->tp, sizeof (atv32)); 748 } 749 if (error == 0 && uap->tzp != NULL) { 750 rtz.tz_minuteswest = tz_minuteswest; 751 rtz.tz_dsttime = tz_dsttime; 752 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 753 } 754 return (error); 755} 756 757int 758freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 759{ 760 struct rusage32 s32; 761 struct rusage s; 762 int error; 763 764 error = kern_getrusage(td, uap->who, &s); 765 if (error) 766 return (error); 767 if (uap->rusage != NULL) { 768 freebsd32_rusage_out(&s, &s32); 769 error = copyout(&s32, uap->rusage, sizeof(s32)); 770 } 771 return (error); 772} 773 774static int 775freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 776{ 777 struct iovec32 iov32; 778 struct iovec *iov; 779 struct uio *uio; 780 u_int iovlen; 781 int error, i; 782 783 *uiop = NULL; 784 if (iovcnt > UIO_MAXIOV) 785 return (EINVAL); 786 iovlen = iovcnt * sizeof(struct iovec); 787 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 788 iov = (struct iovec *)(uio + 1); 789 for (i = 0; i < iovcnt; i++) { 790 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 791 if (error) { 792 free(uio, M_IOV); 793 return (error); 794 } 795 iov[i].iov_base = PTRIN(iov32.iov_base); 796 iov[i].iov_len = iov32.iov_len; 797 } 798 uio->uio_iov = iov; 799 uio->uio_iovcnt = iovcnt; 800 uio->uio_segflg = UIO_USERSPACE; 801 uio->uio_offset = -1; 802 uio->uio_resid = 0; 803 for (i = 0; i < iovcnt; i++) { 804 if (iov->iov_len > INT_MAX - uio->uio_resid) { 805 free(uio, M_IOV); 806 return (EINVAL); 807 } 808 uio->uio_resid += iov->iov_len; 809 iov++; 810 } 811 *uiop = uio; 812 return (0); 813} 814 815int 816freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 817{ 818 struct uio *auio; 819 int error; 820 821 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 822 if (error) 823 return (error); 824 error = kern_readv(td, uap->fd, auio); 825 free(auio, M_IOV); 826 return (error); 827} 828 829int 830freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 831{ 832 struct uio *auio; 833 int error; 834 835 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 836 if (error) 837 return (error); 838 error = kern_writev(td, uap->fd, auio); 839 free(auio, M_IOV); 840 return (error); 841} 842 843int 844freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 845{ 846 struct uio *auio; 847 int error; 848 849 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 850 if (error) 851 return (error); 852 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 853 free(auio, M_IOV); 854 return (error); 855} 856 857int 858freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 859{ 860 struct uio *auio; 861 int error; 862 863 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 864 if (error) 865 return (error); 866 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 867 free(auio, M_IOV); 868 return (error); 869} 870 871int 872freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 873 int error) 874{ 875 struct iovec32 iov32; 876 struct iovec *iov; 877 u_int iovlen; 878 int i; 879 880 *iovp = NULL; 881 if (iovcnt > UIO_MAXIOV) 882 return (error); 883 iovlen = iovcnt * sizeof(struct iovec); 884 iov = malloc(iovlen, M_IOV, M_WAITOK); 885 for (i = 0; i < iovcnt; i++) { 886 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 887 if (error) { 888 free(iov, M_IOV); 889 return (error); 890 } 891 iov[i].iov_base = PTRIN(iov32.iov_base); 892 iov[i].iov_len = iov32.iov_len; 893 } 894 *iovp = iov; 895 return (0); 896} 897 898static int 899freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 900{ 901 struct msghdr32 m32; 902 int error; 903 904 error = copyin(msg32, &m32, sizeof(m32)); 905 if (error) 906 return (error); 907 msg->msg_name = PTRIN(m32.msg_name); 908 msg->msg_namelen = m32.msg_namelen; 909 msg->msg_iov = PTRIN(m32.msg_iov); 910 msg->msg_iovlen = m32.msg_iovlen; 911 msg->msg_control = PTRIN(m32.msg_control); 912 msg->msg_controllen = m32.msg_controllen; 913 msg->msg_flags = m32.msg_flags; 914 return (0); 915} 916 917static int 918freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 919{ 920 struct msghdr32 m32; 921 int error; 922 923 m32.msg_name = PTROUT(msg->msg_name); 924 m32.msg_namelen = msg->msg_namelen; 925 m32.msg_iov = PTROUT(msg->msg_iov); 926 m32.msg_iovlen = msg->msg_iovlen; 927 m32.msg_control = PTROUT(msg->msg_control); 928 m32.msg_controllen = msg->msg_controllen; 929 m32.msg_flags = msg->msg_flags; 930 error = copyout(&m32, msg32, sizeof(m32)); 931 return (error); 932} 933 934#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 935#define FREEBSD32_ALIGN(p) \ 936 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 937#define FREEBSD32_CMSG_SPACE(l) \ 938 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 939 940#define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 941 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 942static int 943freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 944{ 945 struct cmsghdr *cm; 946 void *data; 947 socklen_t clen, datalen; 948 int error; 949 caddr_t ctlbuf; 950 int len, maxlen, copylen; 951 struct mbuf *m; 952 error = 0; 953 954 len = msg->msg_controllen; 955 maxlen = msg->msg_controllen; 956 msg->msg_controllen = 0; 957 958 m = control; 959 ctlbuf = msg->msg_control; 960 961 while (m && len > 0) { 962 cm = mtod(m, struct cmsghdr *); 963 clen = m->m_len; 964 965 while (cm != NULL) { 966 967 if (sizeof(struct cmsghdr) > clen || 968 cm->cmsg_len > clen) { 969 error = EINVAL; 970 break; 971 } 972 973 data = CMSG_DATA(cm); 974 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 975 976 /* Adjust message length */ 977 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 978 datalen; 979 980 981 /* Copy cmsghdr */ 982 copylen = sizeof(struct cmsghdr); 983 if (len < copylen) { 984 msg->msg_flags |= MSG_CTRUNC; 985 copylen = len; 986 } 987 988 error = copyout(cm,ctlbuf,copylen); 989 if (error) 990 goto exit; 991 992 ctlbuf += FREEBSD32_ALIGN(copylen); 993 len -= FREEBSD32_ALIGN(copylen); 994 995 if (len <= 0) 996 break; 997 998 /* Copy data */ 999 copylen = datalen; 1000 if (len < copylen) { 1001 msg->msg_flags |= MSG_CTRUNC; 1002 copylen = len; 1003 } 1004 1005 error = copyout(data,ctlbuf,copylen); 1006 if (error) 1007 goto exit; 1008 1009 ctlbuf += FREEBSD32_ALIGN(copylen); 1010 len -= FREEBSD32_ALIGN(copylen); 1011 1012 if (CMSG_SPACE(datalen) < clen) { 1013 clen -= CMSG_SPACE(datalen); 1014 cm = (struct cmsghdr *) 1015 ((caddr_t)cm + CMSG_SPACE(datalen)); 1016 } else { 1017 clen = 0; 1018 cm = NULL; 1019 } 1020 } 1021 m = m->m_next; 1022 } 1023 1024 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 1025 1026exit: 1027 return (error); 1028 1029} 1030 1031int 1032freebsd32_recvmsg(td, uap) 1033 struct thread *td; 1034 struct freebsd32_recvmsg_args /* { 1035 int s; 1036 struct msghdr32 *msg; 1037 int flags; 1038 } */ *uap; 1039{ 1040 struct msghdr msg; 1041 struct msghdr32 m32; 1042 struct iovec *uiov, *iov; 1043 struct mbuf *control = NULL; 1044 struct mbuf **controlp; 1045 1046 int error; 1047 error = copyin(uap->msg, &m32, sizeof(m32)); 1048 if (error) 1049 return (error); 1050 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1051 if (error) 1052 return (error); 1053 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1054 EMSGSIZE); 1055 if (error) 1056 return (error); 1057 msg.msg_flags = uap->flags; 1058 uiov = msg.msg_iov; 1059 msg.msg_iov = iov; 1060 1061 controlp = (msg.msg_control != NULL) ? &control : NULL; 1062 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1063 if (error == 0) { 1064 msg.msg_iov = uiov; 1065 1066 if (control != NULL) 1067 error = freebsd32_copy_msg_out(&msg, control); 1068 else 1069 msg.msg_controllen = 0; 1070 1071 if (error == 0) 1072 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1073 } 1074 free(iov, M_IOV); 1075 1076 if (control != NULL) 1077 m_freem(control); 1078 1079 return (error); 1080} 1081 1082 1083static int 1084freebsd32_convert_msg_in(struct mbuf **controlp) 1085{ 1086 struct mbuf *control = *controlp; 1087 struct cmsghdr *cm = mtod(control, struct cmsghdr *); 1088 void *data; 1089 socklen_t clen = control->m_len, datalen; 1090 int error; 1091 1092 error = 0; 1093 *controlp = NULL; 1094 1095 while (cm != NULL) { 1096 if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) { 1097 error = EINVAL; 1098 break; 1099 } 1100 1101 data = FREEBSD32_CMSG_DATA(cm); 1102 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1103 1104 *controlp = sbcreatecontrol(data, datalen, cm->cmsg_type, 1105 cm->cmsg_level); 1106 controlp = &(*controlp)->m_next; 1107 1108 if (FREEBSD32_CMSG_SPACE(datalen) < clen) { 1109 clen -= FREEBSD32_CMSG_SPACE(datalen); 1110 cm = (struct cmsghdr *) 1111 ((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen)); 1112 } else { 1113 clen = 0; 1114 cm = NULL; 1115 } 1116 } 1117 1118 m_freem(control); 1119 return (error); 1120} 1121 1122 1123int 1124freebsd32_sendmsg(struct thread *td, 1125 struct freebsd32_sendmsg_args *uap) 1126{ 1127 struct msghdr msg; 1128 struct msghdr32 m32; 1129 struct iovec *iov; 1130 struct mbuf *control = NULL; 1131 struct sockaddr *to = NULL; 1132 int error; 1133 1134 error = copyin(uap->msg, &m32, sizeof(m32)); 1135 if (error) 1136 return (error); 1137 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1138 if (error) 1139 return (error); 1140 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1141 EMSGSIZE); 1142 if (error) 1143 return (error); 1144 msg.msg_iov = iov; 1145 if (msg.msg_name != NULL) { 1146 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1147 if (error) { 1148 to = NULL; 1149 goto out; 1150 } 1151 msg.msg_name = to; 1152 } 1153 1154 if (msg.msg_control) { 1155 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1156 error = EINVAL; 1157 goto out; 1158 } 1159 1160 error = sockargs(&control, msg.msg_control, 1161 msg.msg_controllen, MT_CONTROL); 1162 if (error) 1163 goto out; 1164 1165 error = freebsd32_convert_msg_in(&control); 1166 if (error) 1167 goto out; 1168 } 1169 1170 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1171 UIO_USERSPACE); 1172 1173out: 1174 free(iov, M_IOV); 1175 if (to) 1176 free(to, M_SONAME); 1177 return (error); 1178} 1179 1180int 1181freebsd32_recvfrom(struct thread *td, 1182 struct freebsd32_recvfrom_args *uap) 1183{ 1184 struct msghdr msg; 1185 struct iovec aiov; 1186 int error; 1187 1188 if (uap->fromlenaddr) { 1189 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1190 sizeof(msg.msg_namelen)); 1191 if (error) 1192 return (error); 1193 } else { 1194 msg.msg_namelen = 0; 1195 } 1196 1197 msg.msg_name = PTRIN(uap->from); 1198 msg.msg_iov = &aiov; 1199 msg.msg_iovlen = 1; 1200 aiov.iov_base = PTRIN(uap->buf); 1201 aiov.iov_len = uap->len; 1202 msg.msg_control = NULL; 1203 msg.msg_flags = uap->flags; 1204 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1205 if (error == 0 && uap->fromlenaddr) 1206 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1207 sizeof (msg.msg_namelen)); 1208 return (error); 1209} 1210 1211int 1212freebsd32_settimeofday(struct thread *td, 1213 struct freebsd32_settimeofday_args *uap) 1214{ 1215 struct timeval32 tv32; 1216 struct timeval tv, *tvp; 1217 struct timezone tz, *tzp; 1218 int error; 1219 1220 if (uap->tv) { 1221 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1222 if (error) 1223 return (error); 1224 CP(tv32, tv, tv_sec); 1225 CP(tv32, tv, tv_usec); 1226 tvp = &tv; 1227 } else 1228 tvp = NULL; 1229 if (uap->tzp) { 1230 error = copyin(uap->tzp, &tz, sizeof(tz)); 1231 if (error) 1232 return (error); 1233 tzp = &tz; 1234 } else 1235 tzp = NULL; 1236 return (kern_settimeofday(td, tvp, tzp)); 1237} 1238 1239int 1240freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1241{ 1242 struct timeval32 s32[2]; 1243 struct timeval s[2], *sp; 1244 int error; 1245 1246 if (uap->tptr != NULL) { 1247 error = copyin(uap->tptr, s32, sizeof(s32)); 1248 if (error) 1249 return (error); 1250 CP(s32[0], s[0], tv_sec); 1251 CP(s32[0], s[0], tv_usec); 1252 CP(s32[1], s[1], tv_sec); 1253 CP(s32[1], s[1], tv_usec); 1254 sp = s; 1255 } else 1256 sp = NULL; 1257 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1258} 1259 1260int 1261freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1262{ 1263 struct timeval32 s32[2]; 1264 struct timeval s[2], *sp; 1265 int error; 1266 1267 if (uap->tptr != NULL) { 1268 error = copyin(uap->tptr, s32, sizeof(s32)); 1269 if (error) 1270 return (error); 1271 CP(s32[0], s[0], tv_sec); 1272 CP(s32[0], s[0], tv_usec); 1273 CP(s32[1], s[1], tv_sec); 1274 CP(s32[1], s[1], tv_usec); 1275 sp = s; 1276 } else 1277 sp = NULL; 1278 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1279} 1280 1281int 1282freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1283{ 1284 struct timeval32 s32[2]; 1285 struct timeval s[2], *sp; 1286 int error; 1287 1288 if (uap->tptr != NULL) { 1289 error = copyin(uap->tptr, s32, sizeof(s32)); 1290 if (error) 1291 return (error); 1292 CP(s32[0], s[0], tv_sec); 1293 CP(s32[0], s[0], tv_usec); 1294 CP(s32[1], s[1], tv_sec); 1295 CP(s32[1], s[1], tv_usec); 1296 sp = s; 1297 } else 1298 sp = NULL; 1299 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1300} 1301 1302int 1303freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1304{ 1305 struct timeval32 s32[2]; 1306 struct timeval s[2], *sp; 1307 int error; 1308 1309 if (uap->times != NULL) { 1310 error = copyin(uap->times, s32, sizeof(s32)); 1311 if (error) 1312 return (error); 1313 CP(s32[0], s[0], tv_sec); 1314 CP(s32[0], s[0], tv_usec); 1315 CP(s32[1], s[1], tv_sec); 1316 CP(s32[1], s[1], tv_usec); 1317 sp = s; 1318 } else 1319 sp = NULL; 1320 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1321 sp, UIO_SYSSPACE)); 1322} 1323 1324int 1325freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1326{ 1327 struct timeval32 tv32; 1328 struct timeval delta, olddelta, *deltap; 1329 int error; 1330 1331 if (uap->delta) { 1332 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1333 if (error) 1334 return (error); 1335 CP(tv32, delta, tv_sec); 1336 CP(tv32, delta, tv_usec); 1337 deltap = δ 1338 } else 1339 deltap = NULL; 1340 error = kern_adjtime(td, deltap, &olddelta); 1341 if (uap->olddelta && error == 0) { 1342 CP(olddelta, tv32, tv_sec); 1343 CP(olddelta, tv32, tv_usec); 1344 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1345 } 1346 return (error); 1347} 1348 1349#ifdef COMPAT_FREEBSD4 1350int 1351freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1352{ 1353 struct statfs32 s32; 1354 struct statfs s; 1355 int error; 1356 1357 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1358 if (error) 1359 return (error); 1360 copy_statfs(&s, &s32); 1361 return (copyout(&s32, uap->buf, sizeof(s32))); 1362} 1363#endif 1364 1365#ifdef COMPAT_FREEBSD4 1366int 1367freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1368{ 1369 struct statfs32 s32; 1370 struct statfs s; 1371 int error; 1372 1373 error = kern_fstatfs(td, uap->fd, &s); 1374 if (error) 1375 return (error); 1376 copy_statfs(&s, &s32); 1377 return (copyout(&s32, uap->buf, sizeof(s32))); 1378} 1379#endif 1380 1381#ifdef COMPAT_FREEBSD4 1382int 1383freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1384{ 1385 struct statfs32 s32; 1386 struct statfs s; 1387 fhandle_t fh; 1388 int error; 1389 1390 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1391 return (error); 1392 error = kern_fhstatfs(td, fh, &s); 1393 if (error) 1394 return (error); 1395 copy_statfs(&s, &s32); 1396 return (copyout(&s32, uap->buf, sizeof(s32))); 1397} 1398#endif 1399 1400int 1401freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1402{ 1403 struct pread_args ap; 1404 1405 ap.fd = uap->fd; 1406 ap.buf = uap->buf; 1407 ap.nbyte = uap->nbyte; 1408 ap.offset = PAIR32TO64(off_t,uap->offset); 1409 return (sys_pread(td, &ap)); 1410} 1411 1412int 1413freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1414{ 1415 struct pwrite_args ap; 1416 1417 ap.fd = uap->fd; 1418 ap.buf = uap->buf; 1419 ap.nbyte = uap->nbyte; 1420 ap.offset = PAIR32TO64(off_t,uap->offset); 1421 return (sys_pwrite(td, &ap)); 1422} 1423 1424#ifdef COMPAT_43 1425int 1426ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1427{ 1428 struct lseek_args nuap; 1429 1430 nuap.fd = uap->fd; 1431 nuap.offset = uap->offset; 1432 nuap.whence = uap->whence; 1433 return (sys_lseek(td, &nuap)); 1434} 1435#endif 1436 1437int 1438freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1439{ 1440 int error; 1441 struct lseek_args ap; 1442 off_t pos; 1443 1444 ap.fd = uap->fd; 1445 ap.offset = PAIR32TO64(off_t,uap->offset); 1446 ap.whence = uap->whence; 1447 error = sys_lseek(td, &ap); 1448 /* Expand the quad return into two parts for eax and edx */ 1449 pos = *(off_t *)(td->td_retval); 1450 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1451 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1452 return error; 1453} 1454 1455int 1456freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1457{ 1458 struct truncate_args ap; 1459 1460 ap.path = uap->path; 1461 ap.length = PAIR32TO64(off_t,uap->length); 1462 return (sys_truncate(td, &ap)); 1463} 1464 1465int 1466freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1467{ 1468 struct ftruncate_args ap; 1469 1470 ap.fd = uap->fd; 1471 ap.length = PAIR32TO64(off_t,uap->length); 1472 return (sys_ftruncate(td, &ap)); 1473} 1474 1475#ifdef COMPAT_43 1476int 1477ofreebsd32_getdirentries(struct thread *td, 1478 struct ofreebsd32_getdirentries_args *uap) 1479{ 1480 struct ogetdirentries_args ap; 1481 int error; 1482 long loff; 1483 int32_t loff_cut; 1484 1485 ap.fd = uap->fd; 1486 ap.buf = uap->buf; 1487 ap.count = uap->count; 1488 ap.basep = NULL; 1489 error = kern_ogetdirentries(td, &ap, &loff); 1490 if (error == 0) { 1491 loff_cut = loff; 1492 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1493 } 1494 return (error); 1495} 1496#endif 1497 1498int 1499freebsd32_getdirentries(struct thread *td, 1500 struct freebsd32_getdirentries_args *uap) 1501{ 1502 long base; 1503 int32_t base32; 1504 int error; 1505 1506 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base); 1507 if (error) 1508 return (error); 1509 if (uap->basep != NULL) { 1510 base32 = base; 1511 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1512 } 1513 return (error); 1514} 1515 1516#ifdef COMPAT_FREEBSD6 1517/* versions with the 'int pad' argument */ 1518int 1519freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1520{ 1521 struct pread_args ap; 1522 1523 ap.fd = uap->fd; 1524 ap.buf = uap->buf; 1525 ap.nbyte = uap->nbyte; 1526 ap.offset = PAIR32TO64(off_t,uap->offset); 1527 return (sys_pread(td, &ap)); 1528} 1529 1530int 1531freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1532{ 1533 struct pwrite_args ap; 1534 1535 ap.fd = uap->fd; 1536 ap.buf = uap->buf; 1537 ap.nbyte = uap->nbyte; 1538 ap.offset = PAIR32TO64(off_t,uap->offset); 1539 return (sys_pwrite(td, &ap)); 1540} 1541 1542int 1543freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1544{ 1545 int error; 1546 struct lseek_args ap; 1547 off_t pos; 1548 1549 ap.fd = uap->fd; 1550 ap.offset = PAIR32TO64(off_t,uap->offset); 1551 ap.whence = uap->whence; 1552 error = sys_lseek(td, &ap); 1553 /* Expand the quad return into two parts for eax and edx */ 1554 pos = *(off_t *)(td->td_retval); 1555 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1556 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1557 return error; 1558} 1559 1560int 1561freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1562{ 1563 struct truncate_args ap; 1564 1565 ap.path = uap->path; 1566 ap.length = PAIR32TO64(off_t,uap->length); 1567 return (sys_truncate(td, &ap)); 1568} 1569 1570int 1571freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1572{ 1573 struct ftruncate_args ap; 1574 1575 ap.fd = uap->fd; 1576 ap.length = PAIR32TO64(off_t,uap->length); 1577 return (sys_ftruncate(td, &ap)); 1578} 1579#endif /* COMPAT_FREEBSD6 */ 1580 1581struct sf_hdtr32 { 1582 uint32_t headers; 1583 int hdr_cnt; 1584 uint32_t trailers; 1585 int trl_cnt; 1586}; 1587 1588static int 1589freebsd32_do_sendfile(struct thread *td, 1590 struct freebsd32_sendfile_args *uap, int compat) 1591{ 1592 struct sendfile_args ap; 1593 struct sf_hdtr32 hdtr32; 1594 struct sf_hdtr hdtr; 1595 struct uio *hdr_uio, *trl_uio; 1596 struct iovec32 *iov32; 1597 int error; 1598 1599 hdr_uio = trl_uio = NULL; 1600 1601 ap.fd = uap->fd; 1602 ap.s = uap->s; 1603 ap.offset = PAIR32TO64(off_t,uap->offset); 1604 ap.nbytes = uap->nbytes; 1605 ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */ 1606 ap.sbytes = uap->sbytes; 1607 ap.flags = uap->flags; 1608 1609 if (uap->hdtr != NULL) { 1610 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1611 if (error) 1612 goto out; 1613 PTRIN_CP(hdtr32, hdtr, headers); 1614 CP(hdtr32, hdtr, hdr_cnt); 1615 PTRIN_CP(hdtr32, hdtr, trailers); 1616 CP(hdtr32, hdtr, trl_cnt); 1617 1618 if (hdtr.headers != NULL) { 1619 iov32 = PTRIN(hdtr32.headers); 1620 error = freebsd32_copyinuio(iov32, 1621 hdtr32.hdr_cnt, &hdr_uio); 1622 if (error) 1623 goto out; 1624 } 1625 if (hdtr.trailers != NULL) { 1626 iov32 = PTRIN(hdtr32.trailers); 1627 error = freebsd32_copyinuio(iov32, 1628 hdtr32.trl_cnt, &trl_uio); 1629 if (error) 1630 goto out; 1631 } 1632 } 1633 1634 error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat); 1635out: 1636 if (hdr_uio) 1637 free(hdr_uio, M_IOV); 1638 if (trl_uio) 1639 free(trl_uio, M_IOV); 1640 return (error); 1641} 1642 1643#ifdef COMPAT_FREEBSD4 1644int 1645freebsd4_freebsd32_sendfile(struct thread *td, 1646 struct freebsd4_freebsd32_sendfile_args *uap) 1647{ 1648 return (freebsd32_do_sendfile(td, 1649 (struct freebsd32_sendfile_args *)uap, 1)); 1650} 1651#endif 1652 1653int 1654freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1655{ 1656 1657 return (freebsd32_do_sendfile(td, uap, 0)); 1658} 1659 1660static void 1661copy_stat(struct stat *in, struct stat32 *out) 1662{ 1663 1664 CP(*in, *out, st_dev); 1665 CP(*in, *out, st_ino); 1666 CP(*in, *out, st_mode); 1667 CP(*in, *out, st_nlink); 1668 CP(*in, *out, st_uid); 1669 CP(*in, *out, st_gid); 1670 CP(*in, *out, st_rdev); 1671 TS_CP(*in, *out, st_atim); 1672 TS_CP(*in, *out, st_mtim); 1673 TS_CP(*in, *out, st_ctim); 1674 CP(*in, *out, st_size); 1675 CP(*in, *out, st_blocks); 1676 CP(*in, *out, st_blksize); 1677 CP(*in, *out, st_flags); 1678 CP(*in, *out, st_gen); 1679 TS_CP(*in, *out, st_birthtim); 1680} 1681 1682#ifdef COMPAT_43 1683static void 1684copy_ostat(struct stat *in, struct ostat32 *out) 1685{ 1686 1687 CP(*in, *out, st_dev); 1688 CP(*in, *out, st_ino); 1689 CP(*in, *out, st_mode); 1690 CP(*in, *out, st_nlink); 1691 CP(*in, *out, st_uid); 1692 CP(*in, *out, st_gid); 1693 CP(*in, *out, st_rdev); 1694 CP(*in, *out, st_size); 1695 TS_CP(*in, *out, st_atim); 1696 TS_CP(*in, *out, st_mtim); 1697 TS_CP(*in, *out, st_ctim); 1698 CP(*in, *out, st_blksize); 1699 CP(*in, *out, st_blocks); 1700 CP(*in, *out, st_flags); 1701 CP(*in, *out, st_gen); 1702} 1703#endif 1704 1705int 1706freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1707{ 1708 struct stat sb; 1709 struct stat32 sb32; 1710 int error; 1711 1712 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1713 if (error) 1714 return (error); 1715 copy_stat(&sb, &sb32); 1716 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1717 return (error); 1718} 1719 1720#ifdef COMPAT_43 1721int 1722ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1723{ 1724 struct stat sb; 1725 struct ostat32 sb32; 1726 int error; 1727 1728 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1729 if (error) 1730 return (error); 1731 copy_ostat(&sb, &sb32); 1732 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1733 return (error); 1734} 1735#endif 1736 1737int 1738freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1739{ 1740 struct stat ub; 1741 struct stat32 ub32; 1742 int error; 1743 1744 error = kern_fstat(td, uap->fd, &ub); 1745 if (error) 1746 return (error); 1747 copy_stat(&ub, &ub32); 1748 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1749 return (error); 1750} 1751 1752#ifdef COMPAT_43 1753int 1754ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1755{ 1756 struct stat ub; 1757 struct ostat32 ub32; 1758 int error; 1759 1760 error = kern_fstat(td, uap->fd, &ub); 1761 if (error) 1762 return (error); 1763 copy_ostat(&ub, &ub32); 1764 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1765 return (error); 1766} 1767#endif 1768 1769int 1770freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1771{ 1772 struct stat ub; 1773 struct stat32 ub32; 1774 int error; 1775 1776 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1777 if (error) 1778 return (error); 1779 copy_stat(&ub, &ub32); 1780 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1781 return (error); 1782} 1783 1784int 1785freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1786{ 1787 struct stat sb; 1788 struct stat32 sb32; 1789 int error; 1790 1791 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1792 if (error) 1793 return (error); 1794 copy_stat(&sb, &sb32); 1795 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1796 return (error); 1797} 1798 1799#ifdef COMPAT_43 1800int 1801ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1802{ 1803 struct stat sb; 1804 struct ostat32 sb32; 1805 int error; 1806 1807 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1808 if (error) 1809 return (error); 1810 copy_ostat(&sb, &sb32); 1811 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1812 return (error); 1813} 1814#endif 1815 1816int 1817freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1818{ 1819 int error, name[CTL_MAXNAME]; 1820 size_t j, oldlen; 1821 1822 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1823 return (EINVAL); 1824 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1825 if (error) 1826 return (error); 1827 if (uap->oldlenp) 1828 oldlen = fuword32(uap->oldlenp); 1829 else 1830 oldlen = 0; 1831 error = userland_sysctl(td, name, uap->namelen, 1832 uap->old, &oldlen, 1, 1833 uap->new, uap->newlen, &j, SCTL_MASK32); 1834 if (error && error != ENOMEM) 1835 return (error); 1836 if (uap->oldlenp) 1837 suword32(uap->oldlenp, j); 1838 return (0); 1839} 1840 1841int 1842freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1843{ 1844 uint32_t version; 1845 int error; 1846 struct jail j; 1847 1848 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1849 if (error) 1850 return (error); 1851 1852 switch (version) { 1853 case 0: 1854 { 1855 /* FreeBSD single IPv4 jails. */ 1856 struct jail32_v0 j32_v0; 1857 1858 bzero(&j, sizeof(struct jail)); 1859 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1860 if (error) 1861 return (error); 1862 CP(j32_v0, j, version); 1863 PTRIN_CP(j32_v0, j, path); 1864 PTRIN_CP(j32_v0, j, hostname); 1865 j.ip4s = j32_v0.ip_number; 1866 break; 1867 } 1868 1869 case 1: 1870 /* 1871 * Version 1 was used by multi-IPv4 jail implementations 1872 * that never made it into the official kernel. 1873 */ 1874 return (EINVAL); 1875 1876 case 2: /* JAIL_API_VERSION */ 1877 { 1878 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1879 struct jail32 j32; 1880 1881 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1882 if (error) 1883 return (error); 1884 CP(j32, j, version); 1885 PTRIN_CP(j32, j, path); 1886 PTRIN_CP(j32, j, hostname); 1887 PTRIN_CP(j32, j, jailname); 1888 CP(j32, j, ip4s); 1889 CP(j32, j, ip6s); 1890 PTRIN_CP(j32, j, ip4); 1891 PTRIN_CP(j32, j, ip6); 1892 break; 1893 } 1894 1895 default: 1896 /* Sci-Fi jails are not supported, sorry. */ 1897 return (EINVAL); 1898 } 1899 return (kern_jail(td, &j)); 1900} 1901 1902int 1903freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1904{ 1905 struct uio *auio; 1906 int error; 1907 1908 /* Check that we have an even number of iovecs. */ 1909 if (uap->iovcnt & 1) 1910 return (EINVAL); 1911 1912 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1913 if (error) 1914 return (error); 1915 error = kern_jail_set(td, auio, uap->flags); 1916 free(auio, M_IOV); 1917 return (error); 1918} 1919 1920int 1921freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1922{ 1923 struct iovec32 iov32; 1924 struct uio *auio; 1925 int error, i; 1926 1927 /* Check that we have an even number of iovecs. */ 1928 if (uap->iovcnt & 1) 1929 return (EINVAL); 1930 1931 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1932 if (error) 1933 return (error); 1934 error = kern_jail_get(td, auio, uap->flags); 1935 if (error == 0) 1936 for (i = 0; i < uap->iovcnt; i++) { 1937 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1938 CP(auio->uio_iov[i], iov32, iov_len); 1939 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1940 if (error != 0) 1941 break; 1942 } 1943 free(auio, M_IOV); 1944 return (error); 1945} 1946 1947int 1948freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1949{ 1950 struct sigaction32 s32; 1951 struct sigaction sa, osa, *sap; 1952 int error; 1953 1954 if (uap->act) { 1955 error = copyin(uap->act, &s32, sizeof(s32)); 1956 if (error) 1957 return (error); 1958 sa.sa_handler = PTRIN(s32.sa_u); 1959 CP(s32, sa, sa_flags); 1960 CP(s32, sa, sa_mask); 1961 sap = &sa; 1962 } else 1963 sap = NULL; 1964 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 1965 if (error == 0 && uap->oact != NULL) { 1966 s32.sa_u = PTROUT(osa.sa_handler); 1967 CP(osa, s32, sa_flags); 1968 CP(osa, s32, sa_mask); 1969 error = copyout(&s32, uap->oact, sizeof(s32)); 1970 } 1971 return (error); 1972} 1973 1974#ifdef COMPAT_FREEBSD4 1975int 1976freebsd4_freebsd32_sigaction(struct thread *td, 1977 struct freebsd4_freebsd32_sigaction_args *uap) 1978{ 1979 struct sigaction32 s32; 1980 struct sigaction sa, osa, *sap; 1981 int error; 1982 1983 if (uap->act) { 1984 error = copyin(uap->act, &s32, sizeof(s32)); 1985 if (error) 1986 return (error); 1987 sa.sa_handler = PTRIN(s32.sa_u); 1988 CP(s32, sa, sa_flags); 1989 CP(s32, sa, sa_mask); 1990 sap = &sa; 1991 } else 1992 sap = NULL; 1993 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 1994 if (error == 0 && uap->oact != NULL) { 1995 s32.sa_u = PTROUT(osa.sa_handler); 1996 CP(osa, s32, sa_flags); 1997 CP(osa, s32, sa_mask); 1998 error = copyout(&s32, uap->oact, sizeof(s32)); 1999 } 2000 return (error); 2001} 2002#endif 2003 2004#ifdef COMPAT_43 2005struct osigaction32 { 2006 u_int32_t sa_u; 2007 osigset_t sa_mask; 2008 int sa_flags; 2009}; 2010 2011#define ONSIG 32 2012 2013int 2014ofreebsd32_sigaction(struct thread *td, 2015 struct ofreebsd32_sigaction_args *uap) 2016{ 2017 struct osigaction32 s32; 2018 struct sigaction sa, osa, *sap; 2019 int error; 2020 2021 if (uap->signum <= 0 || uap->signum >= ONSIG) 2022 return (EINVAL); 2023 2024 if (uap->nsa) { 2025 error = copyin(uap->nsa, &s32, sizeof(s32)); 2026 if (error) 2027 return (error); 2028 sa.sa_handler = PTRIN(s32.sa_u); 2029 CP(s32, sa, sa_flags); 2030 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2031 sap = &sa; 2032 } else 2033 sap = NULL; 2034 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2035 if (error == 0 && uap->osa != NULL) { 2036 s32.sa_u = PTROUT(osa.sa_handler); 2037 CP(osa, s32, sa_flags); 2038 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2039 error = copyout(&s32, uap->osa, sizeof(s32)); 2040 } 2041 return (error); 2042} 2043 2044int 2045ofreebsd32_sigprocmask(struct thread *td, 2046 struct ofreebsd32_sigprocmask_args *uap) 2047{ 2048 sigset_t set, oset; 2049 int error; 2050 2051 OSIG2SIG(uap->mask, set); 2052 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2053 SIG2OSIG(oset, td->td_retval[0]); 2054 return (error); 2055} 2056 2057int 2058ofreebsd32_sigpending(struct thread *td, 2059 struct ofreebsd32_sigpending_args *uap) 2060{ 2061 struct proc *p = td->td_proc; 2062 sigset_t siglist; 2063 2064 PROC_LOCK(p); 2065 siglist = p->p_siglist; 2066 SIGSETOR(siglist, td->td_siglist); 2067 PROC_UNLOCK(p); 2068 SIG2OSIG(siglist, td->td_retval[0]); 2069 return (0); 2070} 2071 2072struct sigvec32 { 2073 u_int32_t sv_handler; 2074 int sv_mask; 2075 int sv_flags; 2076}; 2077 2078int 2079ofreebsd32_sigvec(struct thread *td, 2080 struct ofreebsd32_sigvec_args *uap) 2081{ 2082 struct sigvec32 vec; 2083 struct sigaction sa, osa, *sap; 2084 int error; 2085 2086 if (uap->signum <= 0 || uap->signum >= ONSIG) 2087 return (EINVAL); 2088 2089 if (uap->nsv) { 2090 error = copyin(uap->nsv, &vec, sizeof(vec)); 2091 if (error) 2092 return (error); 2093 sa.sa_handler = PTRIN(vec.sv_handler); 2094 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2095 sa.sa_flags = vec.sv_flags; 2096 sa.sa_flags ^= SA_RESTART; 2097 sap = &sa; 2098 } else 2099 sap = NULL; 2100 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2101 if (error == 0 && uap->osv != NULL) { 2102 vec.sv_handler = PTROUT(osa.sa_handler); 2103 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2104 vec.sv_flags = osa.sa_flags; 2105 vec.sv_flags &= ~SA_NOCLDWAIT; 2106 vec.sv_flags ^= SA_RESTART; 2107 error = copyout(&vec, uap->osv, sizeof(vec)); 2108 } 2109 return (error); 2110} 2111 2112int 2113ofreebsd32_sigblock(struct thread *td, 2114 struct ofreebsd32_sigblock_args *uap) 2115{ 2116 sigset_t set, oset; 2117 2118 OSIG2SIG(uap->mask, set); 2119 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2120 SIG2OSIG(oset, td->td_retval[0]); 2121 return (0); 2122} 2123 2124int 2125ofreebsd32_sigsetmask(struct thread *td, 2126 struct ofreebsd32_sigsetmask_args *uap) 2127{ 2128 sigset_t set, oset; 2129 2130 OSIG2SIG(uap->mask, set); 2131 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2132 SIG2OSIG(oset, td->td_retval[0]); 2133 return (0); 2134} 2135 2136int 2137ofreebsd32_sigsuspend(struct thread *td, 2138 struct ofreebsd32_sigsuspend_args *uap) 2139{ 2140 sigset_t mask; 2141 2142 OSIG2SIG(uap->mask, mask); 2143 return (kern_sigsuspend(td, mask)); 2144} 2145 2146struct sigstack32 { 2147 u_int32_t ss_sp; 2148 int ss_onstack; 2149}; 2150 2151int 2152ofreebsd32_sigstack(struct thread *td, 2153 struct ofreebsd32_sigstack_args *uap) 2154{ 2155 struct sigstack32 s32; 2156 struct sigstack nss, oss; 2157 int error = 0, unss; 2158 2159 if (uap->nss != NULL) { 2160 error = copyin(uap->nss, &s32, sizeof(s32)); 2161 if (error) 2162 return (error); 2163 nss.ss_sp = PTRIN(s32.ss_sp); 2164 CP(s32, nss, ss_onstack); 2165 unss = 1; 2166 } else { 2167 unss = 0; 2168 } 2169 oss.ss_sp = td->td_sigstk.ss_sp; 2170 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2171 if (unss) { 2172 td->td_sigstk.ss_sp = nss.ss_sp; 2173 td->td_sigstk.ss_size = 0; 2174 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2175 td->td_pflags |= TDP_ALTSTACK; 2176 } 2177 if (uap->oss != NULL) { 2178 s32.ss_sp = PTROUT(oss.ss_sp); 2179 CP(oss, s32, ss_onstack); 2180 error = copyout(&s32, uap->oss, sizeof(s32)); 2181 } 2182 return (error); 2183} 2184#endif 2185 2186int 2187freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2188{ 2189 struct timespec32 rmt32, rqt32; 2190 struct timespec rmt, rqt; 2191 int error; 2192 2193 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2194 if (error) 2195 return (error); 2196 2197 CP(rqt32, rqt, tv_sec); 2198 CP(rqt32, rqt, tv_nsec); 2199 2200 if (uap->rmtp && 2201 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2202 return (EFAULT); 2203 error = kern_nanosleep(td, &rqt, &rmt); 2204 if (error && uap->rmtp) { 2205 int error2; 2206 2207 CP(rmt, rmt32, tv_sec); 2208 CP(rmt, rmt32, tv_nsec); 2209 2210 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2211 if (error2) 2212 error = error2; 2213 } 2214 return (error); 2215} 2216 2217int 2218freebsd32_clock_gettime(struct thread *td, 2219 struct freebsd32_clock_gettime_args *uap) 2220{ 2221 struct timespec ats; 2222 struct timespec32 ats32; 2223 int error; 2224 2225 error = kern_clock_gettime(td, uap->clock_id, &ats); 2226 if (error == 0) { 2227 CP(ats, ats32, tv_sec); 2228 CP(ats, ats32, tv_nsec); 2229 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2230 } 2231 return (error); 2232} 2233 2234int 2235freebsd32_clock_settime(struct thread *td, 2236 struct freebsd32_clock_settime_args *uap) 2237{ 2238 struct timespec ats; 2239 struct timespec32 ats32; 2240 int error; 2241 2242 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2243 if (error) 2244 return (error); 2245 CP(ats32, ats, tv_sec); 2246 CP(ats32, ats, tv_nsec); 2247 2248 return (kern_clock_settime(td, uap->clock_id, &ats)); 2249} 2250 2251int 2252freebsd32_clock_getres(struct thread *td, 2253 struct freebsd32_clock_getres_args *uap) 2254{ 2255 struct timespec ts; 2256 struct timespec32 ts32; 2257 int error; 2258 2259 if (uap->tp == NULL) 2260 return (0); 2261 error = kern_clock_getres(td, uap->clock_id, &ts); 2262 if (error == 0) { 2263 CP(ts, ts32, tv_sec); 2264 CP(ts, ts32, tv_nsec); 2265 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2266 } 2267 return (error); 2268} 2269 2270int 2271freebsd32_thr_new(struct thread *td, 2272 struct freebsd32_thr_new_args *uap) 2273{ 2274 struct thr_param32 param32; 2275 struct thr_param param; 2276 int error; 2277 2278 if (uap->param_size < 0 || 2279 uap->param_size > sizeof(struct thr_param32)) 2280 return (EINVAL); 2281 bzero(¶m, sizeof(struct thr_param)); 2282 bzero(¶m32, sizeof(struct thr_param32)); 2283 error = copyin(uap->param, ¶m32, uap->param_size); 2284 if (error != 0) 2285 return (error); 2286 param.start_func = PTRIN(param32.start_func); 2287 param.arg = PTRIN(param32.arg); 2288 param.stack_base = PTRIN(param32.stack_base); 2289 param.stack_size = param32.stack_size; 2290 param.tls_base = PTRIN(param32.tls_base); 2291 param.tls_size = param32.tls_size; 2292 param.child_tid = PTRIN(param32.child_tid); 2293 param.parent_tid = PTRIN(param32.parent_tid); 2294 param.flags = param32.flags; 2295 param.rtp = PTRIN(param32.rtp); 2296 param.spare[0] = PTRIN(param32.spare[0]); 2297 param.spare[1] = PTRIN(param32.spare[1]); 2298 param.spare[2] = PTRIN(param32.spare[2]); 2299 2300 return (kern_thr_new(td, ¶m)); 2301} 2302 2303int 2304freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2305{ 2306 struct timespec32 ts32; 2307 struct timespec ts, *tsp; 2308 int error; 2309 2310 error = 0; 2311 tsp = NULL; 2312 if (uap->timeout != NULL) { 2313 error = copyin((const void *)uap->timeout, (void *)&ts32, 2314 sizeof(struct timespec32)); 2315 if (error != 0) 2316 return (error); 2317 ts.tv_sec = ts32.tv_sec; 2318 ts.tv_nsec = ts32.tv_nsec; 2319 tsp = &ts; 2320 } 2321 return (kern_thr_suspend(td, tsp)); 2322} 2323 2324void 2325siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2326{ 2327 bzero(dst, sizeof(*dst)); 2328 dst->si_signo = src->si_signo; 2329 dst->si_errno = src->si_errno; 2330 dst->si_code = src->si_code; 2331 dst->si_pid = src->si_pid; 2332 dst->si_uid = src->si_uid; 2333 dst->si_status = src->si_status; 2334 dst->si_addr = (uintptr_t)src->si_addr; 2335 dst->si_value.sigval_int = src->si_value.sival_int; 2336 dst->si_timerid = src->si_timerid; 2337 dst->si_overrun = src->si_overrun; 2338} 2339 2340int 2341freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2342{ 2343 struct timespec32 ts32; 2344 struct timespec ts; 2345 struct timespec *timeout; 2346 sigset_t set; 2347 ksiginfo_t ksi; 2348 struct siginfo32 si32; 2349 int error; 2350 2351 if (uap->timeout) { 2352 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2353 if (error) 2354 return (error); 2355 ts.tv_sec = ts32.tv_sec; 2356 ts.tv_nsec = ts32.tv_nsec; 2357 timeout = &ts; 2358 } else 2359 timeout = NULL; 2360 2361 error = copyin(uap->set, &set, sizeof(set)); 2362 if (error) 2363 return (error); 2364 2365 error = kern_sigtimedwait(td, set, &ksi, timeout); 2366 if (error) 2367 return (error); 2368 2369 if (uap->info) { 2370 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2371 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2372 } 2373 2374 if (error == 0) 2375 td->td_retval[0] = ksi.ksi_signo; 2376 return (error); 2377} 2378 2379/* 2380 * MPSAFE 2381 */ 2382int 2383freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2384{ 2385 ksiginfo_t ksi; 2386 struct siginfo32 si32; 2387 sigset_t set; 2388 int error; 2389 2390 error = copyin(uap->set, &set, sizeof(set)); 2391 if (error) 2392 return (error); 2393 2394 error = kern_sigtimedwait(td, set, &ksi, NULL); 2395 if (error) 2396 return (error); 2397 2398 if (uap->info) { 2399 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2400 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2401 } 2402 if (error == 0) 2403 td->td_retval[0] = ksi.ksi_signo; 2404 return (error); 2405} 2406 2407int 2408freebsd32_cpuset_setid(struct thread *td, 2409 struct freebsd32_cpuset_setid_args *uap) 2410{ 2411 struct cpuset_setid_args ap; 2412 2413 ap.which = uap->which; 2414 ap.id = PAIR32TO64(id_t,uap->id); 2415 ap.setid = uap->setid; 2416 2417 return (sys_cpuset_setid(td, &ap)); 2418} 2419 2420int 2421freebsd32_cpuset_getid(struct thread *td, 2422 struct freebsd32_cpuset_getid_args *uap) 2423{ 2424 struct cpuset_getid_args ap; 2425 2426 ap.level = uap->level; 2427 ap.which = uap->which; 2428 ap.id = PAIR32TO64(id_t,uap->id); 2429 ap.setid = uap->setid; 2430 2431 return (sys_cpuset_getid(td, &ap)); 2432} 2433 2434int 2435freebsd32_cpuset_getaffinity(struct thread *td, 2436 struct freebsd32_cpuset_getaffinity_args *uap) 2437{ 2438 struct cpuset_getaffinity_args ap; 2439 2440 ap.level = uap->level; 2441 ap.which = uap->which; 2442 ap.id = PAIR32TO64(id_t,uap->id); 2443 ap.cpusetsize = uap->cpusetsize; 2444 ap.mask = uap->mask; 2445 2446 return (sys_cpuset_getaffinity(td, &ap)); 2447} 2448 2449int 2450freebsd32_cpuset_setaffinity(struct thread *td, 2451 struct freebsd32_cpuset_setaffinity_args *uap) 2452{ 2453 struct cpuset_setaffinity_args ap; 2454 2455 ap.level = uap->level; 2456 ap.which = uap->which; 2457 ap.id = PAIR32TO64(id_t,uap->id); 2458 ap.cpusetsize = uap->cpusetsize; 2459 ap.mask = uap->mask; 2460 2461 return (sys_cpuset_setaffinity(td, &ap)); 2462} 2463 2464int 2465freebsd32_nmount(struct thread *td, 2466 struct freebsd32_nmount_args /* { 2467 struct iovec *iovp; 2468 unsigned int iovcnt; 2469 int flags; 2470 } */ *uap) 2471{ 2472 struct uio *auio; 2473 int error; 2474 2475 AUDIT_ARG_FFLAGS(uap->flags); 2476 2477 /* 2478 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2479 * userspace to set this flag, but we must filter it out if we want 2480 * MNT_UPDATE on the root file system to work. 2481 * MNT_ROOTFS should only be set by the kernel when mounting its 2482 * root file system. 2483 */ 2484 uap->flags &= ~MNT_ROOTFS; 2485 2486 /* 2487 * check that we have an even number of iovec's 2488 * and that we have at least two options. 2489 */ 2490 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2491 return (EINVAL); 2492 2493 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2494 if (error) 2495 return (error); 2496 error = vfs_donmount(td, uap->flags, auio); 2497 2498 free(auio, M_IOV); 2499 return error; 2500} 2501 2502#if 0 2503int 2504freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2505{ 2506 struct yyy32 *p32, s32; 2507 struct yyy *p = NULL, s; 2508 struct xxx_arg ap; 2509 int error; 2510 2511 if (uap->zzz) { 2512 error = copyin(uap->zzz, &s32, sizeof(s32)); 2513 if (error) 2514 return (error); 2515 /* translate in */ 2516 p = &s; 2517 } 2518 error = kern_xxx(td, p); 2519 if (error) 2520 return (error); 2521 if (uap->zzz) { 2522 /* translate out */ 2523 error = copyout(&s32, p32, sizeof(s32)); 2524 } 2525 return (error); 2526} 2527#endif 2528 2529int 2530syscall32_register(int *offset, struct sysent *new_sysent, 2531 struct sysent *old_sysent) 2532{ 2533 if (*offset == NO_SYSCALL) { 2534 int i; 2535 2536 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2537 if (freebsd32_sysent[i].sy_call == 2538 (sy_call_t *)lkmnosys) 2539 break; 2540 if (i == SYS_MAXSYSCALL) 2541 return (ENFILE); 2542 *offset = i; 2543 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2544 return (EINVAL); 2545 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2546 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2547 return (EEXIST); 2548 2549 *old_sysent = freebsd32_sysent[*offset]; 2550 freebsd32_sysent[*offset] = *new_sysent; 2551 return 0; 2552} 2553 2554int 2555syscall32_deregister(int *offset, struct sysent *old_sysent) 2556{ 2557 2558 if (*offset) 2559 freebsd32_sysent[*offset] = *old_sysent; 2560 return 0; 2561} 2562 2563int 2564syscall32_module_handler(struct module *mod, int what, void *arg) 2565{ 2566 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2567 modspecific_t ms; 2568 int error; 2569 2570 switch (what) { 2571 case MOD_LOAD: 2572 error = syscall32_register(data->offset, data->new_sysent, 2573 &data->old_sysent); 2574 if (error) { 2575 /* Leave a mark so we know to safely unload below. */ 2576 data->offset = NULL; 2577 return error; 2578 } 2579 ms.intval = *data->offset; 2580 MOD_XLOCK; 2581 module_setspecific(mod, &ms); 2582 MOD_XUNLOCK; 2583 if (data->chainevh) 2584 error = data->chainevh(mod, what, data->chainarg); 2585 return (error); 2586 case MOD_UNLOAD: 2587 /* 2588 * MOD_LOAD failed, so just return without calling the 2589 * chained handler since we didn't pass along the MOD_LOAD 2590 * event. 2591 */ 2592 if (data->offset == NULL) 2593 return (0); 2594 if (data->chainevh) { 2595 error = data->chainevh(mod, what, data->chainarg); 2596 if (error) 2597 return (error); 2598 } 2599 error = syscall32_deregister(data->offset, &data->old_sysent); 2600 return (error); 2601 default: 2602 error = EOPNOTSUPP; 2603 if (data->chainevh) 2604 error = data->chainevh(mod, what, data->chainarg); 2605 return (error); 2606 } 2607} 2608 2609int 2610syscall32_helper_register(struct syscall_helper_data *sd) 2611{ 2612 struct syscall_helper_data *sd1; 2613 int error; 2614 2615 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2616 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2617 &sd1->old_sysent); 2618 if (error != 0) { 2619 syscall32_helper_unregister(sd); 2620 return (error); 2621 } 2622 sd1->registered = 1; 2623 } 2624 return (0); 2625} 2626 2627int 2628syscall32_helper_unregister(struct syscall_helper_data *sd) 2629{ 2630 struct syscall_helper_data *sd1; 2631 2632 for (sd1 = sd; sd1->registered != 0; sd1++) { 2633 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2634 sd1->registered = 0; 2635 } 2636 return (0); 2637} 2638 2639register_t * 2640freebsd32_copyout_strings(struct image_params *imgp) 2641{ 2642 int argc, envc, i; 2643 u_int32_t *vectp; 2644 char *stringp, *destp; 2645 u_int32_t *stack_base; 2646 struct freebsd32_ps_strings *arginfo; 2647 char canary[sizeof(long) * 8]; 2648 int32_t pagesizes32[MAXPAGESIZES]; 2649 size_t execpath_len; 2650 int szsigcode; 2651 2652 /* 2653 * Calculate string base and vector table pointers. 2654 * Also deal with signal trampoline code for this exec type. 2655 */ 2656 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2657 execpath_len = strlen(imgp->execpath) + 1; 2658 else 2659 execpath_len = 0; 2660 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2661 sv_psstrings; 2662 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2663 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2664 else 2665 szsigcode = 0; 2666 destp = (caddr_t)arginfo - szsigcode - SPARE_USRSPACE - 2667 roundup(execpath_len, sizeof(char *)) - 2668 roundup(sizeof(canary), sizeof(char *)) - 2669 roundup(sizeof(pagesizes32), sizeof(char *)) - 2670 roundup((ARG_MAX - imgp->args->stringspace), sizeof(char *)); 2671 2672 /* 2673 * install sigcode 2674 */ 2675 if (szsigcode != 0) 2676 copyout(imgp->proc->p_sysent->sv_sigcode, 2677 ((caddr_t)arginfo - szsigcode), szsigcode); 2678 2679 /* 2680 * Copy the image path for the rtld. 2681 */ 2682 if (execpath_len != 0) { 2683 imgp->execpathp = (uintptr_t)arginfo - szsigcode - execpath_len; 2684 copyout(imgp->execpath, (void *)imgp->execpathp, 2685 execpath_len); 2686 } 2687 2688 /* 2689 * Prepare the canary for SSP. 2690 */ 2691 arc4rand(canary, sizeof(canary), 0); 2692 imgp->canary = (uintptr_t)arginfo - szsigcode - execpath_len - 2693 sizeof(canary); 2694 copyout(canary, (void *)imgp->canary, sizeof(canary)); 2695 imgp->canarylen = sizeof(canary); 2696 2697 /* 2698 * Prepare the pagesizes array. 2699 */ 2700 for (i = 0; i < MAXPAGESIZES; i++) 2701 pagesizes32[i] = (uint32_t)pagesizes[i]; 2702 imgp->pagesizes = (uintptr_t)arginfo - szsigcode - execpath_len - 2703 roundup(sizeof(canary), sizeof(char *)) - sizeof(pagesizes32); 2704 copyout(pagesizes32, (void *)imgp->pagesizes, sizeof(pagesizes32)); 2705 imgp->pagesizeslen = sizeof(pagesizes32); 2706 2707 /* 2708 * If we have a valid auxargs ptr, prepare some room 2709 * on the stack. 2710 */ 2711 if (imgp->auxargs) { 2712 /* 2713 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2714 * lower compatibility. 2715 */ 2716 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2717 : (AT_COUNT * 2); 2718 /* 2719 * The '+ 2' is for the null pointers at the end of each of 2720 * the arg and env vector sets,and imgp->auxarg_size is room 2721 * for argument of Runtime loader. 2722 */ 2723 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2724 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2725 sizeof(u_int32_t)); 2726 } else 2727 /* 2728 * The '+ 2' is for the null pointers at the end of each of 2729 * the arg and env vector sets 2730 */ 2731 vectp = (u_int32_t *) 2732 (destp - (imgp->args->argc + imgp->args->envc + 2) * sizeof(u_int32_t)); 2733 2734 /* 2735 * vectp also becomes our initial stack base 2736 */ 2737 stack_base = vectp; 2738 2739 stringp = imgp->args->begin_argv; 2740 argc = imgp->args->argc; 2741 envc = imgp->args->envc; 2742 /* 2743 * Copy out strings - arguments and environment. 2744 */ 2745 copyout(stringp, destp, ARG_MAX - imgp->args->stringspace); 2746 2747 /* 2748 * Fill in "ps_strings" struct for ps, w, etc. 2749 */ 2750 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2751 suword32(&arginfo->ps_nargvstr, argc); 2752 2753 /* 2754 * Fill in argument portion of vector table. 2755 */ 2756 for (; argc > 0; --argc) { 2757 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2758 while (*stringp++ != 0) 2759 destp++; 2760 destp++; 2761 } 2762 2763 /* a null vector table pointer separates the argp's from the envp's */ 2764 suword32(vectp++, 0); 2765 2766 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2767 suword32(&arginfo->ps_nenvstr, envc); 2768 2769 /* 2770 * Fill in environment portion of vector table. 2771 */ 2772 for (; envc > 0; --envc) { 2773 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2774 while (*stringp++ != 0) 2775 destp++; 2776 destp++; 2777 } 2778 2779 /* end of vector table is a null pointer */ 2780 suword32(vectp, 0); 2781 2782 return ((register_t *)stack_base); 2783} 2784 2785int 2786freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2787{ 2788 struct kld_file_stat stat; 2789 struct kld32_file_stat stat32; 2790 int error, version; 2791 2792 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2793 != 0) 2794 return (error); 2795 if (version != sizeof(struct kld32_file_stat_1) && 2796 version != sizeof(struct kld32_file_stat)) 2797 return (EINVAL); 2798 2799 error = kern_kldstat(td, uap->fileid, &stat); 2800 if (error != 0) 2801 return (error); 2802 2803 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name)); 2804 CP(stat, stat32, refs); 2805 CP(stat, stat32, id); 2806 PTROUT_CP(stat, stat32, address); 2807 CP(stat, stat32, size); 2808 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname)); 2809 return (copyout(&stat32, uap->stat, version)); 2810} 2811 2812int 2813freebsd32_posix_fallocate(struct thread *td, 2814 struct freebsd32_posix_fallocate_args *uap) 2815{ 2816 struct posix_fallocate_args ap; 2817 2818 ap.fd = uap->fd; 2819 ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32)); 2820 ap.len = (uap->lenlo | ((off_t)uap->lenhi << 32)); 2821 return (sys_posix_fallocate(td, &ap)); 2822} 2823