freebsd32_misc.c revision 210545
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 210545 2010-07-27 17:31:03Z 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_param.h> 90#include <vm/pmap.h> 91#include <vm/vm_map.h> 92#include <vm/vm_object.h> 93#include <vm/vm_extern.h> 94 95#include <machine/cpu.h> 96#include <machine/elf.h> 97 98#include <security/audit/audit.h> 99 100#include <compat/freebsd32/freebsd32_util.h> 101#include <compat/freebsd32/freebsd32.h> 102#include <compat/freebsd32/freebsd32_ipc.h> 103#include <compat/freebsd32/freebsd32_signal.h> 104#include <compat/freebsd32/freebsd32_proto.h> 105 106CTASSERT(sizeof(struct timeval32) == 8); 107CTASSERT(sizeof(struct timespec32) == 8); 108CTASSERT(sizeof(struct itimerval32) == 16); 109CTASSERT(sizeof(struct statfs32) == 256); 110CTASSERT(sizeof(struct rusage32) == 72); 111CTASSERT(sizeof(struct sigaltstack32) == 12); 112CTASSERT(sizeof(struct kevent32) == 20); 113CTASSERT(sizeof(struct iovec32) == 8); 114CTASSERT(sizeof(struct msghdr32) == 28); 115CTASSERT(sizeof(struct stat32) == 96); 116CTASSERT(sizeof(struct sigaction32) == 24); 117 118static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 119static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 120 121#if BYTE_ORDER == BIG_ENDIAN 122#define PAIR32TO64(type, name) ((name ## 2) | ((type)(name ## 1) << 32)) 123#define RETVAL_HI 0 124#define RETVAL_LO 1 125#else 126#define PAIR32TO64(type, name) ((name ## 1) | ((type)(name ## 2) << 32)) 127#define RETVAL_HI 1 128#define RETVAL_LO 0 129#endif 130 131void 132freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 133{ 134 135 TV_CP(*s, *s32, ru_utime); 136 TV_CP(*s, *s32, ru_stime); 137 CP(*s, *s32, ru_maxrss); 138 CP(*s, *s32, ru_ixrss); 139 CP(*s, *s32, ru_idrss); 140 CP(*s, *s32, ru_isrss); 141 CP(*s, *s32, ru_minflt); 142 CP(*s, *s32, ru_majflt); 143 CP(*s, *s32, ru_nswap); 144 CP(*s, *s32, ru_inblock); 145 CP(*s, *s32, ru_oublock); 146 CP(*s, *s32, ru_msgsnd); 147 CP(*s, *s32, ru_msgrcv); 148 CP(*s, *s32, ru_nsignals); 149 CP(*s, *s32, ru_nvcsw); 150 CP(*s, *s32, ru_nivcsw); 151} 152 153int 154freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 155{ 156 int error, status; 157 struct rusage32 ru32; 158 struct rusage ru, *rup; 159 160 if (uap->rusage != NULL) 161 rup = &ru; 162 else 163 rup = NULL; 164 error = kern_wait(td, uap->pid, &status, uap->options, rup); 165 if (error) 166 return (error); 167 if (uap->status != NULL) 168 error = copyout(&status, uap->status, sizeof(status)); 169 if (uap->rusage != NULL && error == 0) { 170 freebsd32_rusage_out(&ru, &ru32); 171 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 172 } 173 return (error); 174} 175 176#ifdef COMPAT_FREEBSD4 177static void 178copy_statfs(struct statfs *in, struct statfs32 *out) 179{ 180 181 statfs_scale_blocks(in, INT32_MAX); 182 bzero(out, sizeof(*out)); 183 CP(*in, *out, f_bsize); 184 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 185 CP(*in, *out, f_blocks); 186 CP(*in, *out, f_bfree); 187 CP(*in, *out, f_bavail); 188 out->f_files = MIN(in->f_files, INT32_MAX); 189 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 190 CP(*in, *out, f_fsid); 191 CP(*in, *out, f_owner); 192 CP(*in, *out, f_type); 193 CP(*in, *out, f_flags); 194 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 195 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 196 strlcpy(out->f_fstypename, 197 in->f_fstypename, MFSNAMELEN); 198 strlcpy(out->f_mntonname, 199 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 200 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 201 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 202 strlcpy(out->f_mntfromname, 203 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 204} 205#endif 206 207#ifdef COMPAT_FREEBSD4 208int 209freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 210{ 211 struct statfs *buf, *sp; 212 struct statfs32 stat32; 213 size_t count, size; 214 int error; 215 216 count = uap->bufsize / sizeof(struct statfs32); 217 size = count * sizeof(struct statfs); 218 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags); 219 if (size > 0) { 220 count = td->td_retval[0]; 221 sp = buf; 222 while (count > 0 && error == 0) { 223 copy_statfs(sp, &stat32); 224 error = copyout(&stat32, uap->buf, sizeof(stat32)); 225 sp++; 226 uap->buf++; 227 count--; 228 } 229 free(buf, M_TEMP); 230 } 231 return (error); 232} 233#endif 234 235int 236freebsd32_sigaltstack(struct thread *td, 237 struct freebsd32_sigaltstack_args *uap) 238{ 239 struct sigaltstack32 s32; 240 struct sigaltstack ss, oss, *ssp; 241 int error; 242 243 if (uap->ss != NULL) { 244 error = copyin(uap->ss, &s32, sizeof(s32)); 245 if (error) 246 return (error); 247 PTRIN_CP(s32, ss, ss_sp); 248 CP(s32, ss, ss_size); 249 CP(s32, ss, ss_flags); 250 ssp = &ss; 251 } else 252 ssp = NULL; 253 error = kern_sigaltstack(td, ssp, &oss); 254 if (error == 0 && uap->oss != NULL) { 255 PTROUT_CP(oss, s32, ss_sp); 256 CP(oss, s32, ss_size); 257 CP(oss, s32, ss_flags); 258 error = copyout(&s32, uap->oss, sizeof(s32)); 259 } 260 return (error); 261} 262 263/* 264 * Custom version of exec_copyin_args() so that we can translate 265 * the pointers. 266 */ 267int 268freebsd32_exec_copyin_args(struct image_args *args, char *fname, 269 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 270{ 271 char *argp, *envp; 272 u_int32_t *p32, arg; 273 size_t length; 274 int error; 275 276 bzero(args, sizeof(*args)); 277 if (argv == NULL) 278 return (EFAULT); 279 280 /* 281 * Allocate demand-paged memory for the file name, argument, and 282 * environment strings. 283 */ 284 error = exec_alloc_args(args); 285 if (error != 0) 286 return (error); 287 288 /* 289 * Copy the file name. 290 */ 291 if (fname != NULL) { 292 args->fname = args->buf; 293 error = (segflg == UIO_SYSSPACE) ? 294 copystr(fname, args->fname, PATH_MAX, &length) : 295 copyinstr(fname, args->fname, PATH_MAX, &length); 296 if (error != 0) 297 goto err_exit; 298 } else 299 length = 0; 300 301 args->begin_argv = args->buf + length; 302 args->endp = args->begin_argv; 303 args->stringspace = ARG_MAX; 304 305 /* 306 * extract arguments first 307 */ 308 p32 = argv; 309 for (;;) { 310 error = copyin(p32++, &arg, sizeof(arg)); 311 if (error) 312 goto err_exit; 313 if (arg == 0) 314 break; 315 argp = PTRIN(arg); 316 error = copyinstr(argp, args->endp, args->stringspace, &length); 317 if (error) { 318 if (error == ENAMETOOLONG) 319 error = E2BIG; 320 goto err_exit; 321 } 322 args->stringspace -= length; 323 args->endp += length; 324 args->argc++; 325 } 326 327 args->begin_envv = args->endp; 328 329 /* 330 * extract environment strings 331 */ 332 if (envv) { 333 p32 = envv; 334 for (;;) { 335 error = copyin(p32++, &arg, sizeof(arg)); 336 if (error) 337 goto err_exit; 338 if (arg == 0) 339 break; 340 envp = PTRIN(arg); 341 error = copyinstr(envp, args->endp, args->stringspace, 342 &length); 343 if (error) { 344 if (error == ENAMETOOLONG) 345 error = E2BIG; 346 goto err_exit; 347 } 348 args->stringspace -= length; 349 args->endp += length; 350 args->envc++; 351 } 352 } 353 354 return (0); 355 356err_exit: 357 exec_free_args(args); 358 return (error); 359} 360 361int 362freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 363{ 364 struct image_args eargs; 365 int error; 366 367 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 368 uap->argv, uap->envv); 369 if (error == 0) 370 error = kern_execve(td, &eargs, NULL); 371 return (error); 372} 373 374int 375freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 376{ 377 struct image_args eargs; 378 int error; 379 380 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 381 uap->argv, uap->envv); 382 if (error == 0) { 383 eargs.fd = uap->fd; 384 error = kern_execve(td, &eargs, NULL); 385 } 386 return (error); 387} 388 389#ifdef __ia64__ 390static int 391freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 392 int prot, int fd, off_t pos) 393{ 394 vm_map_t map; 395 vm_map_entry_t entry; 396 int rv; 397 398 map = &td->td_proc->p_vmspace->vm_map; 399 if (fd != -1) 400 prot |= VM_PROT_WRITE; 401 402 if (vm_map_lookup_entry(map, start, &entry)) { 403 if ((entry->protection & prot) != prot) { 404 rv = vm_map_protect(map, 405 trunc_page(start), 406 round_page(end), 407 entry->protection | prot, 408 FALSE); 409 if (rv != KERN_SUCCESS) 410 return (EINVAL); 411 } 412 } else { 413 vm_offset_t addr = trunc_page(start); 414 rv = vm_map_find(map, 0, 0, 415 &addr, PAGE_SIZE, FALSE, prot, 416 VM_PROT_ALL, 0); 417 if (rv != KERN_SUCCESS) 418 return (EINVAL); 419 } 420 421 if (fd != -1) { 422 struct pread_args r; 423 r.fd = fd; 424 r.buf = (void *) start; 425 r.nbyte = end - start; 426 r.offset = pos; 427 return (pread(td, &r)); 428 } else { 429 while (start < end) { 430 subyte((void *) start, 0); 431 start++; 432 } 433 return (0); 434 } 435} 436#endif 437 438int 439freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 440{ 441 struct mmap_args ap; 442 vm_offset_t addr = (vm_offset_t) uap->addr; 443 vm_size_t len = uap->len; 444 int prot = uap->prot; 445 int flags = uap->flags; 446 int fd = uap->fd; 447 off_t pos = PAIR32TO64(off_t,uap->pos); 448#ifdef __ia64__ 449 vm_size_t pageoff; 450 int error; 451 452 /* 453 * Attempt to handle page size hassles. 454 */ 455 pageoff = (pos & PAGE_MASK); 456 if (flags & MAP_FIXED) { 457 vm_offset_t start, end; 458 start = addr; 459 end = addr + len; 460 461 if (start != trunc_page(start)) { 462 error = freebsd32_mmap_partial(td, start, 463 round_page(start), prot, 464 fd, pos); 465 if (fd != -1) 466 pos += round_page(start) - start; 467 start = round_page(start); 468 } 469 if (end != round_page(end)) { 470 vm_offset_t t = trunc_page(end); 471 error = freebsd32_mmap_partial(td, t, end, 472 prot, fd, 473 pos + t - start); 474 end = trunc_page(end); 475 } 476 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 477 /* 478 * We can't map this region at all. The specified 479 * address doesn't have the same alignment as the file 480 * position. Fake the mapping by simply reading the 481 * entire region into memory. First we need to make 482 * sure the region exists. 483 */ 484 vm_map_t map; 485 struct pread_args r; 486 int rv; 487 488 prot |= VM_PROT_WRITE; 489 map = &td->td_proc->p_vmspace->vm_map; 490 rv = vm_map_remove(map, start, end); 491 if (rv != KERN_SUCCESS) 492 return (EINVAL); 493 rv = vm_map_find(map, 0, 0, 494 &start, end - start, FALSE, 495 prot, VM_PROT_ALL, 0); 496 if (rv != KERN_SUCCESS) 497 return (EINVAL); 498 r.fd = fd; 499 r.buf = (void *) start; 500 r.nbyte = end - start; 501 r.offset = pos; 502 error = pread(td, &r); 503 if (error) 504 return (error); 505 506 td->td_retval[0] = addr; 507 return (0); 508 } 509 if (end == start) { 510 /* 511 * After dealing with the ragged ends, there 512 * might be none left. 513 */ 514 td->td_retval[0] = addr; 515 return (0); 516 } 517 addr = start; 518 len = end - start; 519 } 520#endif 521 522 ap.addr = (void *) addr; 523 ap.len = len; 524 ap.prot = prot; 525 ap.flags = flags; 526 ap.fd = fd; 527 ap.pos = pos; 528 529 return (mmap(td, &ap)); 530} 531 532#ifdef COMPAT_FREEBSD6 533int 534freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 535{ 536 struct freebsd32_mmap_args ap; 537 538 ap.addr = uap->addr; 539 ap.len = uap->len; 540 ap.prot = uap->prot; 541 ap.flags = uap->flags; 542 ap.fd = uap->fd; 543 ap.pos1 = uap->pos1; 544 ap.pos2 = uap->pos2; 545 546 return (freebsd32_mmap(td, &ap)); 547} 548#endif 549 550int 551freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 552{ 553 struct itimerval itv, oitv, *itvp; 554 struct itimerval32 i32; 555 int error; 556 557 if (uap->itv != NULL) { 558 error = copyin(uap->itv, &i32, sizeof(i32)); 559 if (error) 560 return (error); 561 TV_CP(i32, itv, it_interval); 562 TV_CP(i32, itv, it_value); 563 itvp = &itv; 564 } else 565 itvp = NULL; 566 error = kern_setitimer(td, uap->which, itvp, &oitv); 567 if (error || uap->oitv == NULL) 568 return (error); 569 TV_CP(oitv, i32, it_interval); 570 TV_CP(oitv, i32, it_value); 571 return (copyout(&i32, uap->oitv, sizeof(i32))); 572} 573 574int 575freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 576{ 577 struct itimerval itv; 578 struct itimerval32 i32; 579 int error; 580 581 error = kern_getitimer(td, uap->which, &itv); 582 if (error || uap->itv == NULL) 583 return (error); 584 TV_CP(itv, i32, it_interval); 585 TV_CP(itv, i32, it_value); 586 return (copyout(&i32, uap->itv, sizeof(i32))); 587} 588 589int 590freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 591{ 592 struct timeval32 tv32; 593 struct timeval tv, *tvp; 594 int error; 595 596 if (uap->tv != NULL) { 597 error = copyin(uap->tv, &tv32, sizeof(tv32)); 598 if (error) 599 return (error); 600 CP(tv32, tv, tv_sec); 601 CP(tv32, tv, tv_usec); 602 tvp = &tv; 603 } else 604 tvp = NULL; 605 /* 606 * XXX Do pointers need PTRIN()? 607 */ 608 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 609 sizeof(int32_t) * 8)); 610} 611 612int 613freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 614{ 615 struct timespec32 ts32; 616 struct timespec ts; 617 struct timeval tv, *tvp; 618 sigset_t set, *uset; 619 int error; 620 621 if (uap->ts != NULL) { 622 error = copyin(uap->ts, &ts32, sizeof(ts32)); 623 if (error != 0) 624 return (error); 625 CP(ts32, ts, tv_sec); 626 CP(ts32, ts, tv_nsec); 627 TIMESPEC_TO_TIMEVAL(&tv, &ts); 628 tvp = &tv; 629 } else 630 tvp = NULL; 631 if (uap->sm != NULL) { 632 error = copyin(uap->sm, &set, sizeof(set)); 633 if (error != 0) 634 return (error); 635 uset = &set; 636 } else 637 uset = NULL; 638 /* 639 * XXX Do pointers need PTRIN()? 640 */ 641 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 642 uset, sizeof(int32_t) * 8); 643 return (error); 644} 645 646/* 647 * Copy 'count' items into the destination list pointed to by uap->eventlist. 648 */ 649static int 650freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 651{ 652 struct freebsd32_kevent_args *uap; 653 struct kevent32 ks32[KQ_NEVENTS]; 654 int i, error = 0; 655 656 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 657 uap = (struct freebsd32_kevent_args *)arg; 658 659 for (i = 0; i < count; i++) { 660 CP(kevp[i], ks32[i], ident); 661 CP(kevp[i], ks32[i], filter); 662 CP(kevp[i], ks32[i], flags); 663 CP(kevp[i], ks32[i], fflags); 664 CP(kevp[i], ks32[i], data); 665 PTROUT_CP(kevp[i], ks32[i], udata); 666 } 667 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 668 if (error == 0) 669 uap->eventlist += count; 670 return (error); 671} 672 673/* 674 * Copy 'count' items from the list pointed to by uap->changelist. 675 */ 676static int 677freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 678{ 679 struct freebsd32_kevent_args *uap; 680 struct kevent32 ks32[KQ_NEVENTS]; 681 int i, error = 0; 682 683 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 684 uap = (struct freebsd32_kevent_args *)arg; 685 686 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 687 if (error) 688 goto done; 689 uap->changelist += count; 690 691 for (i = 0; i < count; i++) { 692 CP(ks32[i], kevp[i], ident); 693 CP(ks32[i], kevp[i], filter); 694 CP(ks32[i], kevp[i], flags); 695 CP(ks32[i], kevp[i], fflags); 696 CP(ks32[i], kevp[i], data); 697 PTRIN_CP(ks32[i], kevp[i], udata); 698 } 699done: 700 return (error); 701} 702 703int 704freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 705{ 706 struct timespec32 ts32; 707 struct timespec ts, *tsp; 708 struct kevent_copyops k_ops = { uap, 709 freebsd32_kevent_copyout, 710 freebsd32_kevent_copyin}; 711 int error; 712 713 714 if (uap->timeout) { 715 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 716 if (error) 717 return (error); 718 CP(ts32, ts, tv_sec); 719 CP(ts32, ts, tv_nsec); 720 tsp = &ts; 721 } else 722 tsp = NULL; 723 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 724 &k_ops, tsp); 725 return (error); 726} 727 728int 729freebsd32_gettimeofday(struct thread *td, 730 struct freebsd32_gettimeofday_args *uap) 731{ 732 struct timeval atv; 733 struct timeval32 atv32; 734 struct timezone rtz; 735 int error = 0; 736 737 if (uap->tp) { 738 microtime(&atv); 739 CP(atv, atv32, tv_sec); 740 CP(atv, atv32, tv_usec); 741 error = copyout(&atv32, uap->tp, sizeof (atv32)); 742 } 743 if (error == 0 && uap->tzp != NULL) { 744 rtz.tz_minuteswest = tz_minuteswest; 745 rtz.tz_dsttime = tz_dsttime; 746 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 747 } 748 return (error); 749} 750 751int 752freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 753{ 754 struct rusage32 s32; 755 struct rusage s; 756 int error; 757 758 error = kern_getrusage(td, uap->who, &s); 759 if (error) 760 return (error); 761 if (uap->rusage != NULL) { 762 freebsd32_rusage_out(&s, &s32); 763 error = copyout(&s32, uap->rusage, sizeof(s32)); 764 } 765 return (error); 766} 767 768static int 769freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 770{ 771 struct iovec32 iov32; 772 struct iovec *iov; 773 struct uio *uio; 774 u_int iovlen; 775 int error, i; 776 777 *uiop = NULL; 778 if (iovcnt > UIO_MAXIOV) 779 return (EINVAL); 780 iovlen = iovcnt * sizeof(struct iovec); 781 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 782 iov = (struct iovec *)(uio + 1); 783 for (i = 0; i < iovcnt; i++) { 784 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 785 if (error) { 786 free(uio, M_IOV); 787 return (error); 788 } 789 iov[i].iov_base = PTRIN(iov32.iov_base); 790 iov[i].iov_len = iov32.iov_len; 791 } 792 uio->uio_iov = iov; 793 uio->uio_iovcnt = iovcnt; 794 uio->uio_segflg = UIO_USERSPACE; 795 uio->uio_offset = -1; 796 uio->uio_resid = 0; 797 for (i = 0; i < iovcnt; i++) { 798 if (iov->iov_len > INT_MAX - uio->uio_resid) { 799 free(uio, M_IOV); 800 return (EINVAL); 801 } 802 uio->uio_resid += iov->iov_len; 803 iov++; 804 } 805 *uiop = uio; 806 return (0); 807} 808 809int 810freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 811{ 812 struct uio *auio; 813 int error; 814 815 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 816 if (error) 817 return (error); 818 error = kern_readv(td, uap->fd, auio); 819 free(auio, M_IOV); 820 return (error); 821} 822 823int 824freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 825{ 826 struct uio *auio; 827 int error; 828 829 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 830 if (error) 831 return (error); 832 error = kern_writev(td, uap->fd, auio); 833 free(auio, M_IOV); 834 return (error); 835} 836 837int 838freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 839{ 840 struct uio *auio; 841 int error; 842 843 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 844 if (error) 845 return (error); 846 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 847 free(auio, M_IOV); 848 return (error); 849} 850 851int 852freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 853{ 854 struct uio *auio; 855 int error; 856 857 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 858 if (error) 859 return (error); 860 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 861 free(auio, M_IOV); 862 return (error); 863} 864 865int 866freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 867 int error) 868{ 869 struct iovec32 iov32; 870 struct iovec *iov; 871 u_int iovlen; 872 int i; 873 874 *iovp = NULL; 875 if (iovcnt > UIO_MAXIOV) 876 return (error); 877 iovlen = iovcnt * sizeof(struct iovec); 878 iov = malloc(iovlen, M_IOV, M_WAITOK); 879 for (i = 0; i < iovcnt; i++) { 880 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 881 if (error) { 882 free(iov, M_IOV); 883 return (error); 884 } 885 iov[i].iov_base = PTRIN(iov32.iov_base); 886 iov[i].iov_len = iov32.iov_len; 887 } 888 *iovp = iov; 889 return (0); 890} 891 892static int 893freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 894{ 895 struct msghdr32 m32; 896 int error; 897 898 error = copyin(msg32, &m32, sizeof(m32)); 899 if (error) 900 return (error); 901 msg->msg_name = PTRIN(m32.msg_name); 902 msg->msg_namelen = m32.msg_namelen; 903 msg->msg_iov = PTRIN(m32.msg_iov); 904 msg->msg_iovlen = m32.msg_iovlen; 905 msg->msg_control = PTRIN(m32.msg_control); 906 msg->msg_controllen = m32.msg_controllen; 907 msg->msg_flags = m32.msg_flags; 908 return (0); 909} 910 911static int 912freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 913{ 914 struct msghdr32 m32; 915 int error; 916 917 m32.msg_name = PTROUT(msg->msg_name); 918 m32.msg_namelen = msg->msg_namelen; 919 m32.msg_iov = PTROUT(msg->msg_iov); 920 m32.msg_iovlen = msg->msg_iovlen; 921 m32.msg_control = PTROUT(msg->msg_control); 922 m32.msg_controllen = msg->msg_controllen; 923 m32.msg_flags = msg->msg_flags; 924 error = copyout(&m32, msg32, sizeof(m32)); 925 return (error); 926} 927 928#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 929#define FREEBSD32_ALIGN(p) \ 930 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 931#define FREEBSD32_CMSG_SPACE(l) \ 932 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 933 934#define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 935 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 936static int 937freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 938{ 939 struct cmsghdr *cm; 940 void *data; 941 socklen_t clen, datalen; 942 int error; 943 caddr_t ctlbuf; 944 int len, maxlen, copylen; 945 struct mbuf *m; 946 error = 0; 947 948 len = msg->msg_controllen; 949 maxlen = msg->msg_controllen; 950 msg->msg_controllen = 0; 951 952 m = control; 953 ctlbuf = msg->msg_control; 954 955 while (m && len > 0) { 956 cm = mtod(m, struct cmsghdr *); 957 clen = m->m_len; 958 959 while (cm != NULL) { 960 961 if (sizeof(struct cmsghdr) > clen || 962 cm->cmsg_len > clen) { 963 error = EINVAL; 964 break; 965 } 966 967 data = CMSG_DATA(cm); 968 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 969 970 /* Adjust message length */ 971 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 972 datalen; 973 974 975 /* Copy cmsghdr */ 976 copylen = sizeof(struct cmsghdr); 977 if (len < copylen) { 978 msg->msg_flags |= MSG_CTRUNC; 979 copylen = len; 980 } 981 982 error = copyout(cm,ctlbuf,copylen); 983 if (error) 984 goto exit; 985 986 ctlbuf += FREEBSD32_ALIGN(copylen); 987 len -= FREEBSD32_ALIGN(copylen); 988 989 if (len <= 0) 990 break; 991 992 /* Copy data */ 993 copylen = datalen; 994 if (len < copylen) { 995 msg->msg_flags |= MSG_CTRUNC; 996 copylen = len; 997 } 998 999 error = copyout(data,ctlbuf,copylen); 1000 if (error) 1001 goto exit; 1002 1003 ctlbuf += FREEBSD32_ALIGN(copylen); 1004 len -= FREEBSD32_ALIGN(copylen); 1005 1006 if (CMSG_SPACE(datalen) < clen) { 1007 clen -= CMSG_SPACE(datalen); 1008 cm = (struct cmsghdr *) 1009 ((caddr_t)cm + CMSG_SPACE(datalen)); 1010 } else { 1011 clen = 0; 1012 cm = NULL; 1013 } 1014 } 1015 m = m->m_next; 1016 } 1017 1018 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 1019 1020exit: 1021 return (error); 1022 1023} 1024 1025int 1026freebsd32_recvmsg(td, uap) 1027 struct thread *td; 1028 struct freebsd32_recvmsg_args /* { 1029 int s; 1030 struct msghdr32 *msg; 1031 int flags; 1032 } */ *uap; 1033{ 1034 struct msghdr msg; 1035 struct msghdr32 m32; 1036 struct iovec *uiov, *iov; 1037 struct mbuf *control = NULL; 1038 struct mbuf **controlp; 1039 1040 int error; 1041 error = copyin(uap->msg, &m32, sizeof(m32)); 1042 if (error) 1043 return (error); 1044 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1045 if (error) 1046 return (error); 1047 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1048 EMSGSIZE); 1049 if (error) 1050 return (error); 1051 msg.msg_flags = uap->flags; 1052 uiov = msg.msg_iov; 1053 msg.msg_iov = iov; 1054 1055 controlp = (msg.msg_control != NULL) ? &control : NULL; 1056 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1057 if (error == 0) { 1058 msg.msg_iov = uiov; 1059 1060 if (control != NULL) 1061 error = freebsd32_copy_msg_out(&msg, control); 1062 1063 if (error == 0) 1064 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1065 } 1066 free(iov, M_IOV); 1067 1068 if (control != NULL) 1069 m_freem(control); 1070 1071 return (error); 1072} 1073 1074 1075static int 1076freebsd32_convert_msg_in(struct mbuf **controlp) 1077{ 1078 struct mbuf *control = *controlp; 1079 struct cmsghdr *cm = mtod(control, struct cmsghdr *); 1080 void *data; 1081 socklen_t clen = control->m_len, datalen; 1082 int error; 1083 1084 error = 0; 1085 *controlp = NULL; 1086 1087 while (cm != NULL) { 1088 if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) { 1089 error = EINVAL; 1090 break; 1091 } 1092 1093 data = FREEBSD32_CMSG_DATA(cm); 1094 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1095 1096 *controlp = sbcreatecontrol(data, datalen, cm->cmsg_type, 1097 cm->cmsg_level); 1098 controlp = &(*controlp)->m_next; 1099 1100 if (FREEBSD32_CMSG_SPACE(datalen) < clen) { 1101 clen -= FREEBSD32_CMSG_SPACE(datalen); 1102 cm = (struct cmsghdr *) 1103 ((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen)); 1104 } else { 1105 clen = 0; 1106 cm = NULL; 1107 } 1108 } 1109 1110 m_freem(control); 1111 return (error); 1112} 1113 1114 1115int 1116freebsd32_sendmsg(struct thread *td, 1117 struct freebsd32_sendmsg_args *uap) 1118{ 1119 struct msghdr msg; 1120 struct msghdr32 m32; 1121 struct iovec *iov; 1122 struct mbuf *control = NULL; 1123 struct sockaddr *to = NULL; 1124 int error; 1125 1126 error = copyin(uap->msg, &m32, sizeof(m32)); 1127 if (error) 1128 return (error); 1129 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1130 if (error) 1131 return (error); 1132 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1133 EMSGSIZE); 1134 if (error) 1135 return (error); 1136 msg.msg_iov = iov; 1137 if (msg.msg_name != NULL) { 1138 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1139 if (error) { 1140 to = NULL; 1141 goto out; 1142 } 1143 msg.msg_name = to; 1144 } 1145 1146 if (msg.msg_control) { 1147 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1148 error = EINVAL; 1149 goto out; 1150 } 1151 1152 error = sockargs(&control, msg.msg_control, 1153 msg.msg_controllen, MT_CONTROL); 1154 if (error) 1155 goto out; 1156 1157 error = freebsd32_convert_msg_in(&control); 1158 if (error) 1159 goto out; 1160 } 1161 1162 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1163 UIO_USERSPACE); 1164 1165out: 1166 free(iov, M_IOV); 1167 if (to) 1168 free(to, M_SONAME); 1169 return (error); 1170} 1171 1172int 1173freebsd32_recvfrom(struct thread *td, 1174 struct freebsd32_recvfrom_args *uap) 1175{ 1176 struct msghdr msg; 1177 struct iovec aiov; 1178 int error; 1179 1180 if (uap->fromlenaddr) { 1181 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1182 sizeof(msg.msg_namelen)); 1183 if (error) 1184 return (error); 1185 } else { 1186 msg.msg_namelen = 0; 1187 } 1188 1189 msg.msg_name = PTRIN(uap->from); 1190 msg.msg_iov = &aiov; 1191 msg.msg_iovlen = 1; 1192 aiov.iov_base = PTRIN(uap->buf); 1193 aiov.iov_len = uap->len; 1194 msg.msg_control = NULL; 1195 msg.msg_flags = uap->flags; 1196 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1197 if (error == 0 && uap->fromlenaddr) 1198 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1199 sizeof (msg.msg_namelen)); 1200 return (error); 1201} 1202 1203int 1204freebsd32_settimeofday(struct thread *td, 1205 struct freebsd32_settimeofday_args *uap) 1206{ 1207 struct timeval32 tv32; 1208 struct timeval tv, *tvp; 1209 struct timezone tz, *tzp; 1210 int error; 1211 1212 if (uap->tv) { 1213 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1214 if (error) 1215 return (error); 1216 CP(tv32, tv, tv_sec); 1217 CP(tv32, tv, tv_usec); 1218 tvp = &tv; 1219 } else 1220 tvp = NULL; 1221 if (uap->tzp) { 1222 error = copyin(uap->tzp, &tz, sizeof(tz)); 1223 if (error) 1224 return (error); 1225 tzp = &tz; 1226 } else 1227 tzp = NULL; 1228 return (kern_settimeofday(td, tvp, tzp)); 1229} 1230 1231int 1232freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1233{ 1234 struct timeval32 s32[2]; 1235 struct timeval s[2], *sp; 1236 int error; 1237 1238 if (uap->tptr != NULL) { 1239 error = copyin(uap->tptr, s32, sizeof(s32)); 1240 if (error) 1241 return (error); 1242 CP(s32[0], s[0], tv_sec); 1243 CP(s32[0], s[0], tv_usec); 1244 CP(s32[1], s[1], tv_sec); 1245 CP(s32[1], s[1], tv_usec); 1246 sp = s; 1247 } else 1248 sp = NULL; 1249 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1250} 1251 1252int 1253freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1254{ 1255 struct timeval32 s32[2]; 1256 struct timeval s[2], *sp; 1257 int error; 1258 1259 if (uap->tptr != NULL) { 1260 error = copyin(uap->tptr, s32, sizeof(s32)); 1261 if (error) 1262 return (error); 1263 CP(s32[0], s[0], tv_sec); 1264 CP(s32[0], s[0], tv_usec); 1265 CP(s32[1], s[1], tv_sec); 1266 CP(s32[1], s[1], tv_usec); 1267 sp = s; 1268 } else 1269 sp = NULL; 1270 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1271} 1272 1273int 1274freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1275{ 1276 struct timeval32 s32[2]; 1277 struct timeval s[2], *sp; 1278 int error; 1279 1280 if (uap->tptr != NULL) { 1281 error = copyin(uap->tptr, s32, sizeof(s32)); 1282 if (error) 1283 return (error); 1284 CP(s32[0], s[0], tv_sec); 1285 CP(s32[0], s[0], tv_usec); 1286 CP(s32[1], s[1], tv_sec); 1287 CP(s32[1], s[1], tv_usec); 1288 sp = s; 1289 } else 1290 sp = NULL; 1291 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1292} 1293 1294int 1295freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1296{ 1297 struct timeval32 s32[2]; 1298 struct timeval s[2], *sp; 1299 int error; 1300 1301 if (uap->times != NULL) { 1302 error = copyin(uap->times, s32, sizeof(s32)); 1303 if (error) 1304 return (error); 1305 CP(s32[0], s[0], tv_sec); 1306 CP(s32[0], s[0], tv_usec); 1307 CP(s32[1], s[1], tv_sec); 1308 CP(s32[1], s[1], tv_usec); 1309 sp = s; 1310 } else 1311 sp = NULL; 1312 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1313 sp, UIO_SYSSPACE)); 1314} 1315 1316int 1317freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1318{ 1319 struct timeval32 tv32; 1320 struct timeval delta, olddelta, *deltap; 1321 int error; 1322 1323 if (uap->delta) { 1324 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1325 if (error) 1326 return (error); 1327 CP(tv32, delta, tv_sec); 1328 CP(tv32, delta, tv_usec); 1329 deltap = δ 1330 } else 1331 deltap = NULL; 1332 error = kern_adjtime(td, deltap, &olddelta); 1333 if (uap->olddelta && error == 0) { 1334 CP(olddelta, tv32, tv_sec); 1335 CP(olddelta, tv32, tv_usec); 1336 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1337 } 1338 return (error); 1339} 1340 1341#ifdef COMPAT_FREEBSD4 1342int 1343freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1344{ 1345 struct statfs32 s32; 1346 struct statfs s; 1347 int error; 1348 1349 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1350 if (error) 1351 return (error); 1352 copy_statfs(&s, &s32); 1353 return (copyout(&s32, uap->buf, sizeof(s32))); 1354} 1355#endif 1356 1357#ifdef COMPAT_FREEBSD4 1358int 1359freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1360{ 1361 struct statfs32 s32; 1362 struct statfs s; 1363 int error; 1364 1365 error = kern_fstatfs(td, uap->fd, &s); 1366 if (error) 1367 return (error); 1368 copy_statfs(&s, &s32); 1369 return (copyout(&s32, uap->buf, sizeof(s32))); 1370} 1371#endif 1372 1373#ifdef COMPAT_FREEBSD4 1374int 1375freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1376{ 1377 struct statfs32 s32; 1378 struct statfs s; 1379 fhandle_t fh; 1380 int error; 1381 1382 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1383 return (error); 1384 error = kern_fhstatfs(td, fh, &s); 1385 if (error) 1386 return (error); 1387 copy_statfs(&s, &s32); 1388 return (copyout(&s32, uap->buf, sizeof(s32))); 1389} 1390#endif 1391 1392int 1393freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1394{ 1395 struct pread_args ap; 1396 1397 ap.fd = uap->fd; 1398 ap.buf = uap->buf; 1399 ap.nbyte = uap->nbyte; 1400 ap.offset = PAIR32TO64(off_t,uap->offset); 1401 return (pread(td, &ap)); 1402} 1403 1404int 1405freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1406{ 1407 struct pwrite_args ap; 1408 1409 ap.fd = uap->fd; 1410 ap.buf = uap->buf; 1411 ap.nbyte = uap->nbyte; 1412 ap.offset = PAIR32TO64(off_t,uap->offset); 1413 return (pwrite(td, &ap)); 1414} 1415 1416int 1417freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1418{ 1419 int error; 1420 struct lseek_args ap; 1421 off_t pos; 1422 1423 ap.fd = uap->fd; 1424 ap.offset = PAIR32TO64(off_t,uap->offset); 1425 ap.whence = uap->whence; 1426 error = lseek(td, &ap); 1427 /* Expand the quad return into two parts for eax and edx */ 1428 pos = *(off_t *)(td->td_retval); 1429 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1430 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1431 return error; 1432} 1433 1434int 1435freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1436{ 1437 struct truncate_args ap; 1438 1439 ap.path = uap->path; 1440 ap.length = PAIR32TO64(off_t,uap->length); 1441 return (truncate(td, &ap)); 1442} 1443 1444int 1445freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1446{ 1447 struct ftruncate_args ap; 1448 1449 ap.fd = uap->fd; 1450 ap.length = PAIR32TO64(off_t,uap->length); 1451 return (ftruncate(td, &ap)); 1452} 1453 1454int 1455freebsd32_getdirentries(struct thread *td, 1456 struct freebsd32_getdirentries_args *uap) 1457{ 1458 long base; 1459 int32_t base32; 1460 int error; 1461 1462 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base); 1463 if (error) 1464 return (error); 1465 if (uap->basep != NULL) { 1466 base32 = base; 1467 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1468 } 1469 return (error); 1470} 1471 1472#ifdef COMPAT_FREEBSD6 1473/* versions with the 'int pad' argument */ 1474int 1475freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1476{ 1477 struct pread_args ap; 1478 1479 ap.fd = uap->fd; 1480 ap.buf = uap->buf; 1481 ap.nbyte = uap->nbyte; 1482 ap.offset = PAIR32TO64(off_t,uap->offset); 1483 return (pread(td, &ap)); 1484} 1485 1486int 1487freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1488{ 1489 struct pwrite_args ap; 1490 1491 ap.fd = uap->fd; 1492 ap.buf = uap->buf; 1493 ap.nbyte = uap->nbyte; 1494 ap.offset = PAIR32TO64(off_t,uap->offset); 1495 return (pwrite(td, &ap)); 1496} 1497 1498int 1499freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1500{ 1501 int error; 1502 struct lseek_args ap; 1503 off_t pos; 1504 1505 ap.fd = uap->fd; 1506 ap.offset = PAIR32TO64(off_t,uap->offset); 1507 ap.whence = uap->whence; 1508 error = lseek(td, &ap); 1509 /* Expand the quad return into two parts for eax and edx */ 1510 pos = *(off_t *)(td->td_retval); 1511 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1512 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1513 return error; 1514} 1515 1516int 1517freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1518{ 1519 struct truncate_args ap; 1520 1521 ap.path = uap->path; 1522 ap.length = PAIR32TO64(off_t,uap->length); 1523 return (truncate(td, &ap)); 1524} 1525 1526int 1527freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1528{ 1529 struct ftruncate_args ap; 1530 1531 ap.fd = uap->fd; 1532 ap.length = PAIR32TO64(off_t,uap->length); 1533 return (ftruncate(td, &ap)); 1534} 1535#endif /* COMPAT_FREEBSD6 */ 1536 1537struct sf_hdtr32 { 1538 uint32_t headers; 1539 int hdr_cnt; 1540 uint32_t trailers; 1541 int trl_cnt; 1542}; 1543 1544static int 1545freebsd32_do_sendfile(struct thread *td, 1546 struct freebsd32_sendfile_args *uap, int compat) 1547{ 1548 struct sendfile_args ap; 1549 struct sf_hdtr32 hdtr32; 1550 struct sf_hdtr hdtr; 1551 struct uio *hdr_uio, *trl_uio; 1552 struct iovec32 *iov32; 1553 int error; 1554 1555 hdr_uio = trl_uio = NULL; 1556 1557 ap.fd = uap->fd; 1558 ap.s = uap->s; 1559 ap.offset = PAIR32TO64(off_t,uap->offset); 1560 ap.nbytes = uap->nbytes; 1561 ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */ 1562 ap.sbytes = uap->sbytes; 1563 ap.flags = uap->flags; 1564 1565 if (uap->hdtr != NULL) { 1566 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1567 if (error) 1568 goto out; 1569 PTRIN_CP(hdtr32, hdtr, headers); 1570 CP(hdtr32, hdtr, hdr_cnt); 1571 PTRIN_CP(hdtr32, hdtr, trailers); 1572 CP(hdtr32, hdtr, trl_cnt); 1573 1574 if (hdtr.headers != NULL) { 1575 iov32 = PTRIN(hdtr32.headers); 1576 error = freebsd32_copyinuio(iov32, 1577 hdtr32.hdr_cnt, &hdr_uio); 1578 if (error) 1579 goto out; 1580 } 1581 if (hdtr.trailers != NULL) { 1582 iov32 = PTRIN(hdtr32.trailers); 1583 error = freebsd32_copyinuio(iov32, 1584 hdtr32.trl_cnt, &trl_uio); 1585 if (error) 1586 goto out; 1587 } 1588 } 1589 1590 error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat); 1591out: 1592 if (hdr_uio) 1593 free(hdr_uio, M_IOV); 1594 if (trl_uio) 1595 free(trl_uio, M_IOV); 1596 return (error); 1597} 1598 1599#ifdef COMPAT_FREEBSD4 1600int 1601freebsd4_freebsd32_sendfile(struct thread *td, 1602 struct freebsd4_freebsd32_sendfile_args *uap) 1603{ 1604 return (freebsd32_do_sendfile(td, 1605 (struct freebsd32_sendfile_args *)uap, 1)); 1606} 1607#endif 1608 1609int 1610freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1611{ 1612 1613 return (freebsd32_do_sendfile(td, uap, 0)); 1614} 1615 1616static void 1617copy_stat( struct stat *in, struct stat32 *out) 1618{ 1619 CP(*in, *out, st_dev); 1620 CP(*in, *out, st_ino); 1621 CP(*in, *out, st_mode); 1622 CP(*in, *out, st_nlink); 1623 CP(*in, *out, st_uid); 1624 CP(*in, *out, st_gid); 1625 CP(*in, *out, st_rdev); 1626 TS_CP(*in, *out, st_atim); 1627 TS_CP(*in, *out, st_mtim); 1628 TS_CP(*in, *out, st_ctim); 1629 CP(*in, *out, st_size); 1630 CP(*in, *out, st_blocks); 1631 CP(*in, *out, st_blksize); 1632 CP(*in, *out, st_flags); 1633 CP(*in, *out, st_gen); 1634} 1635 1636int 1637freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1638{ 1639 struct stat sb; 1640 struct stat32 sb32; 1641 int error; 1642 1643 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1644 if (error) 1645 return (error); 1646 copy_stat(&sb, &sb32); 1647 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1648 return (error); 1649} 1650 1651int 1652freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1653{ 1654 struct stat ub; 1655 struct stat32 ub32; 1656 int error; 1657 1658 error = kern_fstat(td, uap->fd, &ub); 1659 if (error) 1660 return (error); 1661 copy_stat(&ub, &ub32); 1662 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1663 return (error); 1664} 1665 1666int 1667freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1668{ 1669 struct stat ub; 1670 struct stat32 ub32; 1671 int error; 1672 1673 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1674 if (error) 1675 return (error); 1676 copy_stat(&ub, &ub32); 1677 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1678 return (error); 1679} 1680 1681int 1682freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1683{ 1684 struct stat sb; 1685 struct stat32 sb32; 1686 int error; 1687 1688 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1689 if (error) 1690 return (error); 1691 copy_stat(&sb, &sb32); 1692 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1693 return (error); 1694} 1695 1696/* 1697 * MPSAFE 1698 */ 1699int 1700freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1701{ 1702 int error, name[CTL_MAXNAME]; 1703 size_t j, oldlen; 1704 1705 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1706 return (EINVAL); 1707 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1708 if (error) 1709 return (error); 1710 if (uap->oldlenp) 1711 oldlen = fuword32(uap->oldlenp); 1712 else 1713 oldlen = 0; 1714 error = userland_sysctl(td, name, uap->namelen, 1715 uap->old, &oldlen, 1, 1716 uap->new, uap->newlen, &j, SCTL_MASK32); 1717 if (error && error != ENOMEM) 1718 return (error); 1719 if (uap->oldlenp) 1720 suword32(uap->oldlenp, j); 1721 return (0); 1722} 1723 1724int 1725freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1726{ 1727 uint32_t version; 1728 int error; 1729 struct jail j; 1730 1731 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1732 if (error) 1733 return (error); 1734 1735 switch (version) { 1736 case 0: 1737 { 1738 /* FreeBSD single IPv4 jails. */ 1739 struct jail32_v0 j32_v0; 1740 1741 bzero(&j, sizeof(struct jail)); 1742 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1743 if (error) 1744 return (error); 1745 CP(j32_v0, j, version); 1746 PTRIN_CP(j32_v0, j, path); 1747 PTRIN_CP(j32_v0, j, hostname); 1748 j.ip4s = j32_v0.ip_number; 1749 break; 1750 } 1751 1752 case 1: 1753 /* 1754 * Version 1 was used by multi-IPv4 jail implementations 1755 * that never made it into the official kernel. 1756 */ 1757 return (EINVAL); 1758 1759 case 2: /* JAIL_API_VERSION */ 1760 { 1761 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1762 struct jail32 j32; 1763 1764 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1765 if (error) 1766 return (error); 1767 CP(j32, j, version); 1768 PTRIN_CP(j32, j, path); 1769 PTRIN_CP(j32, j, hostname); 1770 PTRIN_CP(j32, j, jailname); 1771 CP(j32, j, ip4s); 1772 CP(j32, j, ip6s); 1773 PTRIN_CP(j32, j, ip4); 1774 PTRIN_CP(j32, j, ip6); 1775 break; 1776 } 1777 1778 default: 1779 /* Sci-Fi jails are not supported, sorry. */ 1780 return (EINVAL); 1781 } 1782 return (kern_jail(td, &j)); 1783} 1784 1785int 1786freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1787{ 1788 struct uio *auio; 1789 int error; 1790 1791 /* Check that we have an even number of iovecs. */ 1792 if (uap->iovcnt & 1) 1793 return (EINVAL); 1794 1795 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1796 if (error) 1797 return (error); 1798 error = kern_jail_set(td, auio, uap->flags); 1799 free(auio, M_IOV); 1800 return (error); 1801} 1802 1803int 1804freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1805{ 1806 struct iovec32 iov32; 1807 struct uio *auio; 1808 int error, i; 1809 1810 /* Check that we have an even number of iovecs. */ 1811 if (uap->iovcnt & 1) 1812 return (EINVAL); 1813 1814 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1815 if (error) 1816 return (error); 1817 error = kern_jail_get(td, auio, uap->flags); 1818 if (error == 0) 1819 for (i = 0; i < uap->iovcnt; i++) { 1820 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1821 CP(auio->uio_iov[i], iov32, iov_len); 1822 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1823 if (error != 0) 1824 break; 1825 } 1826 free(auio, M_IOV); 1827 return (error); 1828} 1829 1830int 1831freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1832{ 1833 struct sigaction32 s32; 1834 struct sigaction sa, osa, *sap; 1835 int error; 1836 1837 if (uap->act) { 1838 error = copyin(uap->act, &s32, sizeof(s32)); 1839 if (error) 1840 return (error); 1841 sa.sa_handler = PTRIN(s32.sa_u); 1842 CP(s32, sa, sa_flags); 1843 CP(s32, sa, sa_mask); 1844 sap = &sa; 1845 } else 1846 sap = NULL; 1847 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 1848 if (error == 0 && uap->oact != NULL) { 1849 s32.sa_u = PTROUT(osa.sa_handler); 1850 CP(osa, s32, sa_flags); 1851 CP(osa, s32, sa_mask); 1852 error = copyout(&s32, uap->oact, sizeof(s32)); 1853 } 1854 return (error); 1855} 1856 1857#ifdef COMPAT_FREEBSD4 1858int 1859freebsd4_freebsd32_sigaction(struct thread *td, 1860 struct freebsd4_freebsd32_sigaction_args *uap) 1861{ 1862 struct sigaction32 s32; 1863 struct sigaction sa, osa, *sap; 1864 int error; 1865 1866 if (uap->act) { 1867 error = copyin(uap->act, &s32, sizeof(s32)); 1868 if (error) 1869 return (error); 1870 sa.sa_handler = PTRIN(s32.sa_u); 1871 CP(s32, sa, sa_flags); 1872 CP(s32, sa, sa_mask); 1873 sap = &sa; 1874 } else 1875 sap = NULL; 1876 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 1877 if (error == 0 && uap->oact != NULL) { 1878 s32.sa_u = PTROUT(osa.sa_handler); 1879 CP(osa, s32, sa_flags); 1880 CP(osa, s32, sa_mask); 1881 error = copyout(&s32, uap->oact, sizeof(s32)); 1882 } 1883 return (error); 1884} 1885#endif 1886 1887#ifdef COMPAT_43 1888struct osigaction32 { 1889 u_int32_t sa_u; 1890 osigset_t sa_mask; 1891 int sa_flags; 1892}; 1893 1894#define ONSIG 32 1895 1896int 1897ofreebsd32_sigaction(struct thread *td, 1898 struct ofreebsd32_sigaction_args *uap) 1899{ 1900 struct osigaction32 s32; 1901 struct sigaction sa, osa, *sap; 1902 int error; 1903 1904 if (uap->signum <= 0 || uap->signum >= ONSIG) 1905 return (EINVAL); 1906 1907 if (uap->nsa) { 1908 error = copyin(uap->nsa, &s32, sizeof(s32)); 1909 if (error) 1910 return (error); 1911 sa.sa_handler = PTRIN(s32.sa_u); 1912 CP(s32, sa, sa_flags); 1913 OSIG2SIG(s32.sa_mask, sa.sa_mask); 1914 sap = &sa; 1915 } else 1916 sap = NULL; 1917 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 1918 if (error == 0 && uap->osa != NULL) { 1919 s32.sa_u = PTROUT(osa.sa_handler); 1920 CP(osa, s32, sa_flags); 1921 SIG2OSIG(osa.sa_mask, s32.sa_mask); 1922 error = copyout(&s32, uap->osa, sizeof(s32)); 1923 } 1924 return (error); 1925} 1926 1927int 1928ofreebsd32_sigprocmask(struct thread *td, 1929 struct ofreebsd32_sigprocmask_args *uap) 1930{ 1931 sigset_t set, oset; 1932 int error; 1933 1934 OSIG2SIG(uap->mask, set); 1935 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 1936 SIG2OSIG(oset, td->td_retval[0]); 1937 return (error); 1938} 1939 1940int 1941ofreebsd32_sigpending(struct thread *td, 1942 struct ofreebsd32_sigpending_args *uap) 1943{ 1944 struct proc *p = td->td_proc; 1945 sigset_t siglist; 1946 1947 PROC_LOCK(p); 1948 siglist = p->p_siglist; 1949 SIGSETOR(siglist, td->td_siglist); 1950 PROC_UNLOCK(p); 1951 SIG2OSIG(siglist, td->td_retval[0]); 1952 return (0); 1953} 1954 1955struct sigvec32 { 1956 u_int32_t sv_handler; 1957 int sv_mask; 1958 int sv_flags; 1959}; 1960 1961int 1962ofreebsd32_sigvec(struct thread *td, 1963 struct ofreebsd32_sigvec_args *uap) 1964{ 1965 struct sigvec32 vec; 1966 struct sigaction sa, osa, *sap; 1967 int error; 1968 1969 if (uap->signum <= 0 || uap->signum >= ONSIG) 1970 return (EINVAL); 1971 1972 if (uap->nsv) { 1973 error = copyin(uap->nsv, &vec, sizeof(vec)); 1974 if (error) 1975 return (error); 1976 sa.sa_handler = PTRIN(vec.sv_handler); 1977 OSIG2SIG(vec.sv_mask, sa.sa_mask); 1978 sa.sa_flags = vec.sv_flags; 1979 sa.sa_flags ^= SA_RESTART; 1980 sap = &sa; 1981 } else 1982 sap = NULL; 1983 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 1984 if (error == 0 && uap->osv != NULL) { 1985 vec.sv_handler = PTROUT(osa.sa_handler); 1986 SIG2OSIG(osa.sa_mask, vec.sv_mask); 1987 vec.sv_flags = osa.sa_flags; 1988 vec.sv_flags &= ~SA_NOCLDWAIT; 1989 vec.sv_flags ^= SA_RESTART; 1990 error = copyout(&vec, uap->osv, sizeof(vec)); 1991 } 1992 return (error); 1993} 1994 1995int 1996ofreebsd32_sigblock(struct thread *td, 1997 struct ofreebsd32_sigblock_args *uap) 1998{ 1999 sigset_t set, oset; 2000 2001 OSIG2SIG(uap->mask, set); 2002 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2003 SIG2OSIG(oset, td->td_retval[0]); 2004 return (0); 2005} 2006 2007int 2008ofreebsd32_sigsetmask(struct thread *td, 2009 struct ofreebsd32_sigsetmask_args *uap) 2010{ 2011 sigset_t set, oset; 2012 2013 OSIG2SIG(uap->mask, set); 2014 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2015 SIG2OSIG(oset, td->td_retval[0]); 2016 return (0); 2017} 2018 2019int 2020ofreebsd32_sigsuspend(struct thread *td, 2021 struct ofreebsd32_sigsuspend_args *uap) 2022{ 2023 sigset_t mask; 2024 2025 OSIG2SIG(uap->mask, mask); 2026 return (kern_sigsuspend(td, mask)); 2027} 2028 2029struct sigstack32 { 2030 u_int32_t ss_sp; 2031 int ss_onstack; 2032}; 2033 2034int 2035ofreebsd32_sigstack(struct thread *td, 2036 struct ofreebsd32_sigstack_args *uap) 2037{ 2038 struct sigstack32 s32; 2039 struct sigstack nss, oss; 2040 int error = 0, unss; 2041 2042 if (uap->nss != NULL) { 2043 error = copyin(uap->nss, &s32, sizeof(s32)); 2044 if (error) 2045 return (error); 2046 nss.ss_sp = PTRIN(s32.ss_sp); 2047 CP(s32, nss, ss_onstack); 2048 unss = 1; 2049 } else { 2050 unss = 0; 2051 } 2052 oss.ss_sp = td->td_sigstk.ss_sp; 2053 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2054 if (unss) { 2055 td->td_sigstk.ss_sp = nss.ss_sp; 2056 td->td_sigstk.ss_size = 0; 2057 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2058 td->td_pflags |= TDP_ALTSTACK; 2059 } 2060 if (uap->oss != NULL) { 2061 s32.ss_sp = PTROUT(oss.ss_sp); 2062 CP(oss, s32, ss_onstack); 2063 error = copyout(&s32, uap->oss, sizeof(s32)); 2064 } 2065 return (error); 2066} 2067#endif 2068 2069int 2070freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2071{ 2072 struct timespec32 rmt32, rqt32; 2073 struct timespec rmt, rqt; 2074 int error; 2075 2076 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2077 if (error) 2078 return (error); 2079 2080 CP(rqt32, rqt, tv_sec); 2081 CP(rqt32, rqt, tv_nsec); 2082 2083 if (uap->rmtp && 2084 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2085 return (EFAULT); 2086 error = kern_nanosleep(td, &rqt, &rmt); 2087 if (error && uap->rmtp) { 2088 int error2; 2089 2090 CP(rmt, rmt32, tv_sec); 2091 CP(rmt, rmt32, tv_nsec); 2092 2093 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2094 if (error2) 2095 error = error2; 2096 } 2097 return (error); 2098} 2099 2100int 2101freebsd32_clock_gettime(struct thread *td, 2102 struct freebsd32_clock_gettime_args *uap) 2103{ 2104 struct timespec ats; 2105 struct timespec32 ats32; 2106 int error; 2107 2108 error = kern_clock_gettime(td, uap->clock_id, &ats); 2109 if (error == 0) { 2110 CP(ats, ats32, tv_sec); 2111 CP(ats, ats32, tv_nsec); 2112 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2113 } 2114 return (error); 2115} 2116 2117int 2118freebsd32_clock_settime(struct thread *td, 2119 struct freebsd32_clock_settime_args *uap) 2120{ 2121 struct timespec ats; 2122 struct timespec32 ats32; 2123 int error; 2124 2125 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2126 if (error) 2127 return (error); 2128 CP(ats32, ats, tv_sec); 2129 CP(ats32, ats, tv_nsec); 2130 2131 return (kern_clock_settime(td, uap->clock_id, &ats)); 2132} 2133 2134int 2135freebsd32_clock_getres(struct thread *td, 2136 struct freebsd32_clock_getres_args *uap) 2137{ 2138 struct timespec ts; 2139 struct timespec32 ts32; 2140 int error; 2141 2142 if (uap->tp == NULL) 2143 return (0); 2144 error = kern_clock_getres(td, uap->clock_id, &ts); 2145 if (error == 0) { 2146 CP(ts, ts32, tv_sec); 2147 CP(ts, ts32, tv_nsec); 2148 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2149 } 2150 return (error); 2151} 2152 2153int 2154freebsd32_thr_new(struct thread *td, 2155 struct freebsd32_thr_new_args *uap) 2156{ 2157 struct thr_param32 param32; 2158 struct thr_param param; 2159 int error; 2160 2161 if (uap->param_size < 0 || 2162 uap->param_size > sizeof(struct thr_param32)) 2163 return (EINVAL); 2164 bzero(¶m, sizeof(struct thr_param)); 2165 bzero(¶m32, sizeof(struct thr_param32)); 2166 error = copyin(uap->param, ¶m32, uap->param_size); 2167 if (error != 0) 2168 return (error); 2169 param.start_func = PTRIN(param32.start_func); 2170 param.arg = PTRIN(param32.arg); 2171 param.stack_base = PTRIN(param32.stack_base); 2172 param.stack_size = param32.stack_size; 2173 param.tls_base = PTRIN(param32.tls_base); 2174 param.tls_size = param32.tls_size; 2175 param.child_tid = PTRIN(param32.child_tid); 2176 param.parent_tid = PTRIN(param32.parent_tid); 2177 param.flags = param32.flags; 2178 param.rtp = PTRIN(param32.rtp); 2179 param.spare[0] = PTRIN(param32.spare[0]); 2180 param.spare[1] = PTRIN(param32.spare[1]); 2181 param.spare[2] = PTRIN(param32.spare[2]); 2182 2183 return (kern_thr_new(td, ¶m)); 2184} 2185 2186int 2187freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2188{ 2189 struct timespec32 ts32; 2190 struct timespec ts, *tsp; 2191 int error; 2192 2193 error = 0; 2194 tsp = NULL; 2195 if (uap->timeout != NULL) { 2196 error = copyin((const void *)uap->timeout, (void *)&ts32, 2197 sizeof(struct timespec32)); 2198 if (error != 0) 2199 return (error); 2200 ts.tv_sec = ts32.tv_sec; 2201 ts.tv_nsec = ts32.tv_nsec; 2202 tsp = &ts; 2203 } 2204 return (kern_thr_suspend(td, tsp)); 2205} 2206 2207void 2208siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2209{ 2210 bzero(dst, sizeof(*dst)); 2211 dst->si_signo = src->si_signo; 2212 dst->si_errno = src->si_errno; 2213 dst->si_code = src->si_code; 2214 dst->si_pid = src->si_pid; 2215 dst->si_uid = src->si_uid; 2216 dst->si_status = src->si_status; 2217 dst->si_addr = (uintptr_t)src->si_addr; 2218 dst->si_value.sigval_int = src->si_value.sival_int; 2219 dst->si_timerid = src->si_timerid; 2220 dst->si_overrun = src->si_overrun; 2221} 2222 2223int 2224freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2225{ 2226 struct timespec32 ts32; 2227 struct timespec ts; 2228 struct timespec *timeout; 2229 sigset_t set; 2230 ksiginfo_t ksi; 2231 struct siginfo32 si32; 2232 int error; 2233 2234 if (uap->timeout) { 2235 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2236 if (error) 2237 return (error); 2238 ts.tv_sec = ts32.tv_sec; 2239 ts.tv_nsec = ts32.tv_nsec; 2240 timeout = &ts; 2241 } else 2242 timeout = NULL; 2243 2244 error = copyin(uap->set, &set, sizeof(set)); 2245 if (error) 2246 return (error); 2247 2248 error = kern_sigtimedwait(td, set, &ksi, timeout); 2249 if (error) 2250 return (error); 2251 2252 if (uap->info) { 2253 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2254 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2255 } 2256 2257 if (error == 0) 2258 td->td_retval[0] = ksi.ksi_signo; 2259 return (error); 2260} 2261 2262/* 2263 * MPSAFE 2264 */ 2265int 2266freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2267{ 2268 ksiginfo_t ksi; 2269 struct siginfo32 si32; 2270 sigset_t set; 2271 int error; 2272 2273 error = copyin(uap->set, &set, sizeof(set)); 2274 if (error) 2275 return (error); 2276 2277 error = kern_sigtimedwait(td, set, &ksi, NULL); 2278 if (error) 2279 return (error); 2280 2281 if (uap->info) { 2282 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2283 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2284 } 2285 if (error == 0) 2286 td->td_retval[0] = ksi.ksi_signo; 2287 return (error); 2288} 2289 2290int 2291freebsd32_cpuset_setid(struct thread *td, 2292 struct freebsd32_cpuset_setid_args *uap) 2293{ 2294 struct cpuset_setid_args ap; 2295 2296 ap.which = uap->which; 2297 ap.id = PAIR32TO64(id_t,uap->id); 2298 ap.setid = uap->setid; 2299 2300 return (cpuset_setid(td, &ap)); 2301} 2302 2303int 2304freebsd32_cpuset_getid(struct thread *td, 2305 struct freebsd32_cpuset_getid_args *uap) 2306{ 2307 struct cpuset_getid_args ap; 2308 2309 ap.level = uap->level; 2310 ap.which = uap->which; 2311 ap.id = PAIR32TO64(id_t,uap->id); 2312 ap.setid = uap->setid; 2313 2314 return (cpuset_getid(td, &ap)); 2315} 2316 2317int 2318freebsd32_cpuset_getaffinity(struct thread *td, 2319 struct freebsd32_cpuset_getaffinity_args *uap) 2320{ 2321 struct cpuset_getaffinity_args ap; 2322 2323 ap.level = uap->level; 2324 ap.which = uap->which; 2325 ap.id = PAIR32TO64(id_t,uap->id); 2326 ap.cpusetsize = uap->cpusetsize; 2327 ap.mask = uap->mask; 2328 2329 return (cpuset_getaffinity(td, &ap)); 2330} 2331 2332int 2333freebsd32_cpuset_setaffinity(struct thread *td, 2334 struct freebsd32_cpuset_setaffinity_args *uap) 2335{ 2336 struct cpuset_setaffinity_args ap; 2337 2338 ap.level = uap->level; 2339 ap.which = uap->which; 2340 ap.id = PAIR32TO64(id_t,uap->id); 2341 ap.cpusetsize = uap->cpusetsize; 2342 ap.mask = uap->mask; 2343 2344 return (cpuset_setaffinity(td, &ap)); 2345} 2346 2347int 2348freebsd32_nmount(struct thread *td, 2349 struct freebsd32_nmount_args /* { 2350 struct iovec *iovp; 2351 unsigned int iovcnt; 2352 int flags; 2353 } */ *uap) 2354{ 2355 struct uio *auio; 2356 int error; 2357 2358 AUDIT_ARG_FFLAGS(uap->flags); 2359 2360 /* 2361 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2362 * userspace to set this flag, but we must filter it out if we want 2363 * MNT_UPDATE on the root file system to work. 2364 * MNT_ROOTFS should only be set in the kernel in vfs_mountroot_try(). 2365 */ 2366 uap->flags &= ~MNT_ROOTFS; 2367 2368 /* 2369 * check that we have an even number of iovec's 2370 * and that we have at least two options. 2371 */ 2372 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2373 return (EINVAL); 2374 2375 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2376 if (error) 2377 return (error); 2378 error = vfs_donmount(td, uap->flags, auio); 2379 2380 free(auio, M_IOV); 2381 return error; 2382} 2383 2384#if 0 2385int 2386freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2387{ 2388 struct yyy32 *p32, s32; 2389 struct yyy *p = NULL, s; 2390 struct xxx_arg ap; 2391 int error; 2392 2393 if (uap->zzz) { 2394 error = copyin(uap->zzz, &s32, sizeof(s32)); 2395 if (error) 2396 return (error); 2397 /* translate in */ 2398 p = &s; 2399 } 2400 error = kern_xxx(td, p); 2401 if (error) 2402 return (error); 2403 if (uap->zzz) { 2404 /* translate out */ 2405 error = copyout(&s32, p32, sizeof(s32)); 2406 } 2407 return (error); 2408} 2409#endif 2410 2411int 2412syscall32_register(int *offset, struct sysent *new_sysent, 2413 struct sysent *old_sysent) 2414{ 2415 if (*offset == NO_SYSCALL) { 2416 int i; 2417 2418 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2419 if (freebsd32_sysent[i].sy_call == 2420 (sy_call_t *)lkmnosys) 2421 break; 2422 if (i == SYS_MAXSYSCALL) 2423 return (ENFILE); 2424 *offset = i; 2425 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2426 return (EINVAL); 2427 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2428 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2429 return (EEXIST); 2430 2431 *old_sysent = freebsd32_sysent[*offset]; 2432 freebsd32_sysent[*offset] = *new_sysent; 2433 return 0; 2434} 2435 2436int 2437syscall32_deregister(int *offset, struct sysent *old_sysent) 2438{ 2439 2440 if (*offset) 2441 freebsd32_sysent[*offset] = *old_sysent; 2442 return 0; 2443} 2444 2445int 2446syscall32_module_handler(struct module *mod, int what, void *arg) 2447{ 2448 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2449 modspecific_t ms; 2450 int error; 2451 2452 switch (what) { 2453 case MOD_LOAD: 2454 error = syscall32_register(data->offset, data->new_sysent, 2455 &data->old_sysent); 2456 if (error) { 2457 /* Leave a mark so we know to safely unload below. */ 2458 data->offset = NULL; 2459 return error; 2460 } 2461 ms.intval = *data->offset; 2462 MOD_XLOCK; 2463 module_setspecific(mod, &ms); 2464 MOD_XUNLOCK; 2465 if (data->chainevh) 2466 error = data->chainevh(mod, what, data->chainarg); 2467 return (error); 2468 case MOD_UNLOAD: 2469 /* 2470 * MOD_LOAD failed, so just return without calling the 2471 * chained handler since we didn't pass along the MOD_LOAD 2472 * event. 2473 */ 2474 if (data->offset == NULL) 2475 return (0); 2476 if (data->chainevh) { 2477 error = data->chainevh(mod, what, data->chainarg); 2478 if (error) 2479 return (error); 2480 } 2481 error = syscall32_deregister(data->offset, &data->old_sysent); 2482 return (error); 2483 default: 2484 error = EOPNOTSUPP; 2485 if (data->chainevh) 2486 error = data->chainevh(mod, what, data->chainarg); 2487 return (error); 2488 } 2489} 2490 2491int 2492syscall32_helper_register(struct syscall_helper_data *sd) 2493{ 2494 struct syscall_helper_data *sd1; 2495 int error; 2496 2497 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2498 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2499 &sd1->old_sysent); 2500 if (error != 0) { 2501 syscall32_helper_unregister(sd); 2502 return (error); 2503 } 2504 sd1->registered = 1; 2505 } 2506 return (0); 2507} 2508 2509int 2510syscall32_helper_unregister(struct syscall_helper_data *sd) 2511{ 2512 struct syscall_helper_data *sd1; 2513 2514 for (sd1 = sd; sd1->registered != 0; sd1++) { 2515 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2516 sd1->registered = 0; 2517 } 2518 return (0); 2519} 2520 2521register_t * 2522freebsd32_copyout_strings(struct image_params *imgp) 2523{ 2524 int argc, envc; 2525 u_int32_t *vectp; 2526 char *stringp, *destp; 2527 u_int32_t *stack_base; 2528 struct freebsd32_ps_strings *arginfo; 2529 size_t execpath_len; 2530 int szsigcode; 2531 2532 /* 2533 * Calculate string base and vector table pointers. 2534 * Also deal with signal trampoline code for this exec type. 2535 */ 2536 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2537 execpath_len = strlen(imgp->execpath) + 1; 2538 else 2539 execpath_len = 0; 2540 arginfo = (struct freebsd32_ps_strings *)FREEBSD32_PS_STRINGS; 2541 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2542 destp = (caddr_t)arginfo - szsigcode - SPARE_USRSPACE - 2543 roundup(execpath_len, sizeof(char *)) - 2544 roundup((ARG_MAX - imgp->args->stringspace), sizeof(char *)); 2545 2546 /* 2547 * install sigcode 2548 */ 2549 if (szsigcode) 2550 copyout(imgp->proc->p_sysent->sv_sigcode, 2551 ((caddr_t)arginfo - szsigcode), szsigcode); 2552 2553 /* 2554 * Copy the image path for the rtld. 2555 */ 2556 if (execpath_len != 0) { 2557 imgp->execpathp = (uintptr_t)arginfo - szsigcode - execpath_len; 2558 copyout(imgp->execpath, (void *)imgp->execpathp, 2559 execpath_len); 2560 } 2561 2562 /* 2563 * If we have a valid auxargs ptr, prepare some room 2564 * on the stack. 2565 */ 2566 if (imgp->auxargs) { 2567 /* 2568 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2569 * lower compatibility. 2570 */ 2571 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2572 : (AT_COUNT * 2); 2573 /* 2574 * The '+ 2' is for the null pointers at the end of each of 2575 * the arg and env vector sets,and imgp->auxarg_size is room 2576 * for argument of Runtime loader. 2577 */ 2578 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2579 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2580 sizeof(u_int32_t)); 2581 } else 2582 /* 2583 * The '+ 2' is for the null pointers at the end of each of 2584 * the arg and env vector sets 2585 */ 2586 vectp = (u_int32_t *) 2587 (destp - (imgp->args->argc + imgp->args->envc + 2) * sizeof(u_int32_t)); 2588 2589 /* 2590 * vectp also becomes our initial stack base 2591 */ 2592 stack_base = vectp; 2593 2594 stringp = imgp->args->begin_argv; 2595 argc = imgp->args->argc; 2596 envc = imgp->args->envc; 2597 /* 2598 * Copy out strings - arguments and environment. 2599 */ 2600 copyout(stringp, destp, ARG_MAX - imgp->args->stringspace); 2601 2602 /* 2603 * Fill in "ps_strings" struct for ps, w, etc. 2604 */ 2605 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2606 suword32(&arginfo->ps_nargvstr, argc); 2607 2608 /* 2609 * Fill in argument portion of vector table. 2610 */ 2611 for (; argc > 0; --argc) { 2612 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2613 while (*stringp++ != 0) 2614 destp++; 2615 destp++; 2616 } 2617 2618 /* a null vector table pointer separates the argp's from the envp's */ 2619 suword32(vectp++, 0); 2620 2621 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2622 suword32(&arginfo->ps_nenvstr, envc); 2623 2624 /* 2625 * Fill in environment portion of vector table. 2626 */ 2627 for (; envc > 0; --envc) { 2628 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2629 while (*stringp++ != 0) 2630 destp++; 2631 destp++; 2632 } 2633 2634 /* end of vector table is a null pointer */ 2635 suword32(vectp, 0); 2636 2637 return ((register_t *)stack_base); 2638} 2639 2640