freebsd32_misc.c revision 210847
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 210847 2010-08-04 14:35:05Z kib $"); 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 else 1063 msg.msg_controllen = 0; 1064 1065 if (error == 0) 1066 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1067 } 1068 free(iov, M_IOV); 1069 1070 if (control != NULL) 1071 m_freem(control); 1072 1073 return (error); 1074} 1075 1076 1077static int 1078freebsd32_convert_msg_in(struct mbuf **controlp) 1079{ 1080 struct mbuf *control = *controlp; 1081 struct cmsghdr *cm = mtod(control, struct cmsghdr *); 1082 void *data; 1083 socklen_t clen = control->m_len, datalen; 1084 int error; 1085 1086 error = 0; 1087 *controlp = NULL; 1088 1089 while (cm != NULL) { 1090 if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) { 1091 error = EINVAL; 1092 break; 1093 } 1094 1095 data = FREEBSD32_CMSG_DATA(cm); 1096 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1097 1098 *controlp = sbcreatecontrol(data, datalen, cm->cmsg_type, 1099 cm->cmsg_level); 1100 controlp = &(*controlp)->m_next; 1101 1102 if (FREEBSD32_CMSG_SPACE(datalen) < clen) { 1103 clen -= FREEBSD32_CMSG_SPACE(datalen); 1104 cm = (struct cmsghdr *) 1105 ((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen)); 1106 } else { 1107 clen = 0; 1108 cm = NULL; 1109 } 1110 } 1111 1112 m_freem(control); 1113 return (error); 1114} 1115 1116 1117int 1118freebsd32_sendmsg(struct thread *td, 1119 struct freebsd32_sendmsg_args *uap) 1120{ 1121 struct msghdr msg; 1122 struct msghdr32 m32; 1123 struct iovec *iov; 1124 struct mbuf *control = NULL; 1125 struct sockaddr *to = NULL; 1126 int error; 1127 1128 error = copyin(uap->msg, &m32, sizeof(m32)); 1129 if (error) 1130 return (error); 1131 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1132 if (error) 1133 return (error); 1134 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1135 EMSGSIZE); 1136 if (error) 1137 return (error); 1138 msg.msg_iov = iov; 1139 if (msg.msg_name != NULL) { 1140 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1141 if (error) { 1142 to = NULL; 1143 goto out; 1144 } 1145 msg.msg_name = to; 1146 } 1147 1148 if (msg.msg_control) { 1149 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1150 error = EINVAL; 1151 goto out; 1152 } 1153 1154 error = sockargs(&control, msg.msg_control, 1155 msg.msg_controllen, MT_CONTROL); 1156 if (error) 1157 goto out; 1158 1159 error = freebsd32_convert_msg_in(&control); 1160 if (error) 1161 goto out; 1162 } 1163 1164 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1165 UIO_USERSPACE); 1166 1167out: 1168 free(iov, M_IOV); 1169 if (to) 1170 free(to, M_SONAME); 1171 return (error); 1172} 1173 1174int 1175freebsd32_recvfrom(struct thread *td, 1176 struct freebsd32_recvfrom_args *uap) 1177{ 1178 struct msghdr msg; 1179 struct iovec aiov; 1180 int error; 1181 1182 if (uap->fromlenaddr) { 1183 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1184 sizeof(msg.msg_namelen)); 1185 if (error) 1186 return (error); 1187 } else { 1188 msg.msg_namelen = 0; 1189 } 1190 1191 msg.msg_name = PTRIN(uap->from); 1192 msg.msg_iov = &aiov; 1193 msg.msg_iovlen = 1; 1194 aiov.iov_base = PTRIN(uap->buf); 1195 aiov.iov_len = uap->len; 1196 msg.msg_control = NULL; 1197 msg.msg_flags = uap->flags; 1198 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1199 if (error == 0 && uap->fromlenaddr) 1200 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1201 sizeof (msg.msg_namelen)); 1202 return (error); 1203} 1204 1205int 1206freebsd32_settimeofday(struct thread *td, 1207 struct freebsd32_settimeofday_args *uap) 1208{ 1209 struct timeval32 tv32; 1210 struct timeval tv, *tvp; 1211 struct timezone tz, *tzp; 1212 int error; 1213 1214 if (uap->tv) { 1215 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1216 if (error) 1217 return (error); 1218 CP(tv32, tv, tv_sec); 1219 CP(tv32, tv, tv_usec); 1220 tvp = &tv; 1221 } else 1222 tvp = NULL; 1223 if (uap->tzp) { 1224 error = copyin(uap->tzp, &tz, sizeof(tz)); 1225 if (error) 1226 return (error); 1227 tzp = &tz; 1228 } else 1229 tzp = NULL; 1230 return (kern_settimeofday(td, tvp, tzp)); 1231} 1232 1233int 1234freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1235{ 1236 struct timeval32 s32[2]; 1237 struct timeval s[2], *sp; 1238 int error; 1239 1240 if (uap->tptr != NULL) { 1241 error = copyin(uap->tptr, s32, sizeof(s32)); 1242 if (error) 1243 return (error); 1244 CP(s32[0], s[0], tv_sec); 1245 CP(s32[0], s[0], tv_usec); 1246 CP(s32[1], s[1], tv_sec); 1247 CP(s32[1], s[1], tv_usec); 1248 sp = s; 1249 } else 1250 sp = NULL; 1251 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1252} 1253 1254int 1255freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1256{ 1257 struct timeval32 s32[2]; 1258 struct timeval s[2], *sp; 1259 int error; 1260 1261 if (uap->tptr != NULL) { 1262 error = copyin(uap->tptr, s32, sizeof(s32)); 1263 if (error) 1264 return (error); 1265 CP(s32[0], s[0], tv_sec); 1266 CP(s32[0], s[0], tv_usec); 1267 CP(s32[1], s[1], tv_sec); 1268 CP(s32[1], s[1], tv_usec); 1269 sp = s; 1270 } else 1271 sp = NULL; 1272 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1273} 1274 1275int 1276freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1277{ 1278 struct timeval32 s32[2]; 1279 struct timeval s[2], *sp; 1280 int error; 1281 1282 if (uap->tptr != NULL) { 1283 error = copyin(uap->tptr, s32, sizeof(s32)); 1284 if (error) 1285 return (error); 1286 CP(s32[0], s[0], tv_sec); 1287 CP(s32[0], s[0], tv_usec); 1288 CP(s32[1], s[1], tv_sec); 1289 CP(s32[1], s[1], tv_usec); 1290 sp = s; 1291 } else 1292 sp = NULL; 1293 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1294} 1295 1296int 1297freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1298{ 1299 struct timeval32 s32[2]; 1300 struct timeval s[2], *sp; 1301 int error; 1302 1303 if (uap->times != NULL) { 1304 error = copyin(uap->times, s32, sizeof(s32)); 1305 if (error) 1306 return (error); 1307 CP(s32[0], s[0], tv_sec); 1308 CP(s32[0], s[0], tv_usec); 1309 CP(s32[1], s[1], tv_sec); 1310 CP(s32[1], s[1], tv_usec); 1311 sp = s; 1312 } else 1313 sp = NULL; 1314 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1315 sp, UIO_SYSSPACE)); 1316} 1317 1318int 1319freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1320{ 1321 struct timeval32 tv32; 1322 struct timeval delta, olddelta, *deltap; 1323 int error; 1324 1325 if (uap->delta) { 1326 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1327 if (error) 1328 return (error); 1329 CP(tv32, delta, tv_sec); 1330 CP(tv32, delta, tv_usec); 1331 deltap = δ 1332 } else 1333 deltap = NULL; 1334 error = kern_adjtime(td, deltap, &olddelta); 1335 if (uap->olddelta && error == 0) { 1336 CP(olddelta, tv32, tv_sec); 1337 CP(olddelta, tv32, tv_usec); 1338 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1339 } 1340 return (error); 1341} 1342 1343#ifdef COMPAT_FREEBSD4 1344int 1345freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1346{ 1347 struct statfs32 s32; 1348 struct statfs s; 1349 int error; 1350 1351 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1352 if (error) 1353 return (error); 1354 copy_statfs(&s, &s32); 1355 return (copyout(&s32, uap->buf, sizeof(s32))); 1356} 1357#endif 1358 1359#ifdef COMPAT_FREEBSD4 1360int 1361freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1362{ 1363 struct statfs32 s32; 1364 struct statfs s; 1365 int error; 1366 1367 error = kern_fstatfs(td, uap->fd, &s); 1368 if (error) 1369 return (error); 1370 copy_statfs(&s, &s32); 1371 return (copyout(&s32, uap->buf, sizeof(s32))); 1372} 1373#endif 1374 1375#ifdef COMPAT_FREEBSD4 1376int 1377freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1378{ 1379 struct statfs32 s32; 1380 struct statfs s; 1381 fhandle_t fh; 1382 int error; 1383 1384 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1385 return (error); 1386 error = kern_fhstatfs(td, fh, &s); 1387 if (error) 1388 return (error); 1389 copy_statfs(&s, &s32); 1390 return (copyout(&s32, uap->buf, sizeof(s32))); 1391} 1392#endif 1393 1394int 1395freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1396{ 1397 struct pread_args ap; 1398 1399 ap.fd = uap->fd; 1400 ap.buf = uap->buf; 1401 ap.nbyte = uap->nbyte; 1402 ap.offset = PAIR32TO64(off_t,uap->offset); 1403 return (pread(td, &ap)); 1404} 1405 1406int 1407freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1408{ 1409 struct pwrite_args ap; 1410 1411 ap.fd = uap->fd; 1412 ap.buf = uap->buf; 1413 ap.nbyte = uap->nbyte; 1414 ap.offset = PAIR32TO64(off_t,uap->offset); 1415 return (pwrite(td, &ap)); 1416} 1417 1418int 1419freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1420{ 1421 int error; 1422 struct lseek_args ap; 1423 off_t pos; 1424 1425 ap.fd = uap->fd; 1426 ap.offset = PAIR32TO64(off_t,uap->offset); 1427 ap.whence = uap->whence; 1428 error = lseek(td, &ap); 1429 /* Expand the quad return into two parts for eax and edx */ 1430 pos = *(off_t *)(td->td_retval); 1431 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1432 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1433 return error; 1434} 1435 1436int 1437freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1438{ 1439 struct truncate_args ap; 1440 1441 ap.path = uap->path; 1442 ap.length = PAIR32TO64(off_t,uap->length); 1443 return (truncate(td, &ap)); 1444} 1445 1446int 1447freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1448{ 1449 struct ftruncate_args ap; 1450 1451 ap.fd = uap->fd; 1452 ap.length = PAIR32TO64(off_t,uap->length); 1453 return (ftruncate(td, &ap)); 1454} 1455 1456int 1457freebsd32_getdirentries(struct thread *td, 1458 struct freebsd32_getdirentries_args *uap) 1459{ 1460 long base; 1461 int32_t base32; 1462 int error; 1463 1464 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base); 1465 if (error) 1466 return (error); 1467 if (uap->basep != NULL) { 1468 base32 = base; 1469 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1470 } 1471 return (error); 1472} 1473 1474#ifdef COMPAT_FREEBSD6 1475/* versions with the 'int pad' argument */ 1476int 1477freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1478{ 1479 struct pread_args ap; 1480 1481 ap.fd = uap->fd; 1482 ap.buf = uap->buf; 1483 ap.nbyte = uap->nbyte; 1484 ap.offset = PAIR32TO64(off_t,uap->offset); 1485 return (pread(td, &ap)); 1486} 1487 1488int 1489freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1490{ 1491 struct pwrite_args ap; 1492 1493 ap.fd = uap->fd; 1494 ap.buf = uap->buf; 1495 ap.nbyte = uap->nbyte; 1496 ap.offset = PAIR32TO64(off_t,uap->offset); 1497 return (pwrite(td, &ap)); 1498} 1499 1500int 1501freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1502{ 1503 int error; 1504 struct lseek_args ap; 1505 off_t pos; 1506 1507 ap.fd = uap->fd; 1508 ap.offset = PAIR32TO64(off_t,uap->offset); 1509 ap.whence = uap->whence; 1510 error = lseek(td, &ap); 1511 /* Expand the quad return into two parts for eax and edx */ 1512 pos = *(off_t *)(td->td_retval); 1513 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1514 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1515 return error; 1516} 1517 1518int 1519freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1520{ 1521 struct truncate_args ap; 1522 1523 ap.path = uap->path; 1524 ap.length = PAIR32TO64(off_t,uap->length); 1525 return (truncate(td, &ap)); 1526} 1527 1528int 1529freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1530{ 1531 struct ftruncate_args ap; 1532 1533 ap.fd = uap->fd; 1534 ap.length = PAIR32TO64(off_t,uap->length); 1535 return (ftruncate(td, &ap)); 1536} 1537#endif /* COMPAT_FREEBSD6 */ 1538 1539struct sf_hdtr32 { 1540 uint32_t headers; 1541 int hdr_cnt; 1542 uint32_t trailers; 1543 int trl_cnt; 1544}; 1545 1546static int 1547freebsd32_do_sendfile(struct thread *td, 1548 struct freebsd32_sendfile_args *uap, int compat) 1549{ 1550 struct sendfile_args ap; 1551 struct sf_hdtr32 hdtr32; 1552 struct sf_hdtr hdtr; 1553 struct uio *hdr_uio, *trl_uio; 1554 struct iovec32 *iov32; 1555 int error; 1556 1557 hdr_uio = trl_uio = NULL; 1558 1559 ap.fd = uap->fd; 1560 ap.s = uap->s; 1561 ap.offset = PAIR32TO64(off_t,uap->offset); 1562 ap.nbytes = uap->nbytes; 1563 ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */ 1564 ap.sbytes = uap->sbytes; 1565 ap.flags = uap->flags; 1566 1567 if (uap->hdtr != NULL) { 1568 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1569 if (error) 1570 goto out; 1571 PTRIN_CP(hdtr32, hdtr, headers); 1572 CP(hdtr32, hdtr, hdr_cnt); 1573 PTRIN_CP(hdtr32, hdtr, trailers); 1574 CP(hdtr32, hdtr, trl_cnt); 1575 1576 if (hdtr.headers != NULL) { 1577 iov32 = PTRIN(hdtr32.headers); 1578 error = freebsd32_copyinuio(iov32, 1579 hdtr32.hdr_cnt, &hdr_uio); 1580 if (error) 1581 goto out; 1582 } 1583 if (hdtr.trailers != NULL) { 1584 iov32 = PTRIN(hdtr32.trailers); 1585 error = freebsd32_copyinuio(iov32, 1586 hdtr32.trl_cnt, &trl_uio); 1587 if (error) 1588 goto out; 1589 } 1590 } 1591 1592 error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat); 1593out: 1594 if (hdr_uio) 1595 free(hdr_uio, M_IOV); 1596 if (trl_uio) 1597 free(trl_uio, M_IOV); 1598 return (error); 1599} 1600 1601#ifdef COMPAT_FREEBSD4 1602int 1603freebsd4_freebsd32_sendfile(struct thread *td, 1604 struct freebsd4_freebsd32_sendfile_args *uap) 1605{ 1606 return (freebsd32_do_sendfile(td, 1607 (struct freebsd32_sendfile_args *)uap, 1)); 1608} 1609#endif 1610 1611int 1612freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1613{ 1614 1615 return (freebsd32_do_sendfile(td, uap, 0)); 1616} 1617 1618static void 1619copy_stat(struct stat *in, struct stat32 *out) 1620{ 1621 1622 CP(*in, *out, st_dev); 1623 CP(*in, *out, st_ino); 1624 CP(*in, *out, st_mode); 1625 CP(*in, *out, st_nlink); 1626 CP(*in, *out, st_uid); 1627 CP(*in, *out, st_gid); 1628 CP(*in, *out, st_rdev); 1629 TS_CP(*in, *out, st_atim); 1630 TS_CP(*in, *out, st_mtim); 1631 TS_CP(*in, *out, st_ctim); 1632 CP(*in, *out, st_size); 1633 CP(*in, *out, st_blocks); 1634 CP(*in, *out, st_blksize); 1635 CP(*in, *out, st_flags); 1636 CP(*in, *out, st_gen); 1637} 1638 1639int 1640freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1641{ 1642 struct stat sb; 1643 struct stat32 sb32; 1644 int error; 1645 1646 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1647 if (error) 1648 return (error); 1649 copy_stat(&sb, &sb32); 1650 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1651 return (error); 1652} 1653 1654int 1655freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1656{ 1657 struct stat ub; 1658 struct stat32 ub32; 1659 int error; 1660 1661 error = kern_fstat(td, uap->fd, &ub); 1662 if (error) 1663 return (error); 1664 copy_stat(&ub, &ub32); 1665 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1666 return (error); 1667} 1668 1669int 1670freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1671{ 1672 struct stat ub; 1673 struct stat32 ub32; 1674 int error; 1675 1676 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1677 if (error) 1678 return (error); 1679 copy_stat(&ub, &ub32); 1680 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1681 return (error); 1682} 1683 1684int 1685freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1686{ 1687 struct stat sb; 1688 struct stat32 sb32; 1689 int error; 1690 1691 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1692 if (error) 1693 return (error); 1694 copy_stat(&sb, &sb32); 1695 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1696 return (error); 1697} 1698 1699/* 1700 * MPSAFE 1701 */ 1702int 1703freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1704{ 1705 int error, name[CTL_MAXNAME]; 1706 size_t j, oldlen; 1707 1708 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1709 return (EINVAL); 1710 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1711 if (error) 1712 return (error); 1713 if (uap->oldlenp) 1714 oldlen = fuword32(uap->oldlenp); 1715 else 1716 oldlen = 0; 1717 error = userland_sysctl(td, name, uap->namelen, 1718 uap->old, &oldlen, 1, 1719 uap->new, uap->newlen, &j, SCTL_MASK32); 1720 if (error && error != ENOMEM) 1721 return (error); 1722 if (uap->oldlenp) 1723 suword32(uap->oldlenp, j); 1724 return (0); 1725} 1726 1727int 1728freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1729{ 1730 uint32_t version; 1731 int error; 1732 struct jail j; 1733 1734 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1735 if (error) 1736 return (error); 1737 1738 switch (version) { 1739 case 0: 1740 { 1741 /* FreeBSD single IPv4 jails. */ 1742 struct jail32_v0 j32_v0; 1743 1744 bzero(&j, sizeof(struct jail)); 1745 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1746 if (error) 1747 return (error); 1748 CP(j32_v0, j, version); 1749 PTRIN_CP(j32_v0, j, path); 1750 PTRIN_CP(j32_v0, j, hostname); 1751 j.ip4s = j32_v0.ip_number; 1752 break; 1753 } 1754 1755 case 1: 1756 /* 1757 * Version 1 was used by multi-IPv4 jail implementations 1758 * that never made it into the official kernel. 1759 */ 1760 return (EINVAL); 1761 1762 case 2: /* JAIL_API_VERSION */ 1763 { 1764 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1765 struct jail32 j32; 1766 1767 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1768 if (error) 1769 return (error); 1770 CP(j32, j, version); 1771 PTRIN_CP(j32, j, path); 1772 PTRIN_CP(j32, j, hostname); 1773 PTRIN_CP(j32, j, jailname); 1774 CP(j32, j, ip4s); 1775 CP(j32, j, ip6s); 1776 PTRIN_CP(j32, j, ip4); 1777 PTRIN_CP(j32, j, ip6); 1778 break; 1779 } 1780 1781 default: 1782 /* Sci-Fi jails are not supported, sorry. */ 1783 return (EINVAL); 1784 } 1785 return (kern_jail(td, &j)); 1786} 1787 1788int 1789freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1790{ 1791 struct uio *auio; 1792 int error; 1793 1794 /* Check that we have an even number of iovecs. */ 1795 if (uap->iovcnt & 1) 1796 return (EINVAL); 1797 1798 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1799 if (error) 1800 return (error); 1801 error = kern_jail_set(td, auio, uap->flags); 1802 free(auio, M_IOV); 1803 return (error); 1804} 1805 1806int 1807freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1808{ 1809 struct iovec32 iov32; 1810 struct uio *auio; 1811 int error, i; 1812 1813 /* Check that we have an even number of iovecs. */ 1814 if (uap->iovcnt & 1) 1815 return (EINVAL); 1816 1817 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1818 if (error) 1819 return (error); 1820 error = kern_jail_get(td, auio, uap->flags); 1821 if (error == 0) 1822 for (i = 0; i < uap->iovcnt; i++) { 1823 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1824 CP(auio->uio_iov[i], iov32, iov_len); 1825 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1826 if (error != 0) 1827 break; 1828 } 1829 free(auio, M_IOV); 1830 return (error); 1831} 1832 1833int 1834freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1835{ 1836 struct sigaction32 s32; 1837 struct sigaction sa, osa, *sap; 1838 int error; 1839 1840 if (uap->act) { 1841 error = copyin(uap->act, &s32, sizeof(s32)); 1842 if (error) 1843 return (error); 1844 sa.sa_handler = PTRIN(s32.sa_u); 1845 CP(s32, sa, sa_flags); 1846 CP(s32, sa, sa_mask); 1847 sap = &sa; 1848 } else 1849 sap = NULL; 1850 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 1851 if (error == 0 && uap->oact != NULL) { 1852 s32.sa_u = PTROUT(osa.sa_handler); 1853 CP(osa, s32, sa_flags); 1854 CP(osa, s32, sa_mask); 1855 error = copyout(&s32, uap->oact, sizeof(s32)); 1856 } 1857 return (error); 1858} 1859 1860#ifdef COMPAT_FREEBSD4 1861int 1862freebsd4_freebsd32_sigaction(struct thread *td, 1863 struct freebsd4_freebsd32_sigaction_args *uap) 1864{ 1865 struct sigaction32 s32; 1866 struct sigaction sa, osa, *sap; 1867 int error; 1868 1869 if (uap->act) { 1870 error = copyin(uap->act, &s32, sizeof(s32)); 1871 if (error) 1872 return (error); 1873 sa.sa_handler = PTRIN(s32.sa_u); 1874 CP(s32, sa, sa_flags); 1875 CP(s32, sa, sa_mask); 1876 sap = &sa; 1877 } else 1878 sap = NULL; 1879 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 1880 if (error == 0 && uap->oact != NULL) { 1881 s32.sa_u = PTROUT(osa.sa_handler); 1882 CP(osa, s32, sa_flags); 1883 CP(osa, s32, sa_mask); 1884 error = copyout(&s32, uap->oact, sizeof(s32)); 1885 } 1886 return (error); 1887} 1888#endif 1889 1890#ifdef COMPAT_43 1891struct osigaction32 { 1892 u_int32_t sa_u; 1893 osigset_t sa_mask; 1894 int sa_flags; 1895}; 1896 1897#define ONSIG 32 1898 1899int 1900ofreebsd32_sigaction(struct thread *td, 1901 struct ofreebsd32_sigaction_args *uap) 1902{ 1903 struct osigaction32 s32; 1904 struct sigaction sa, osa, *sap; 1905 int error; 1906 1907 if (uap->signum <= 0 || uap->signum >= ONSIG) 1908 return (EINVAL); 1909 1910 if (uap->nsa) { 1911 error = copyin(uap->nsa, &s32, sizeof(s32)); 1912 if (error) 1913 return (error); 1914 sa.sa_handler = PTRIN(s32.sa_u); 1915 CP(s32, sa, sa_flags); 1916 OSIG2SIG(s32.sa_mask, sa.sa_mask); 1917 sap = &sa; 1918 } else 1919 sap = NULL; 1920 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 1921 if (error == 0 && uap->osa != NULL) { 1922 s32.sa_u = PTROUT(osa.sa_handler); 1923 CP(osa, s32, sa_flags); 1924 SIG2OSIG(osa.sa_mask, s32.sa_mask); 1925 error = copyout(&s32, uap->osa, sizeof(s32)); 1926 } 1927 return (error); 1928} 1929 1930int 1931ofreebsd32_sigprocmask(struct thread *td, 1932 struct ofreebsd32_sigprocmask_args *uap) 1933{ 1934 sigset_t set, oset; 1935 int error; 1936 1937 OSIG2SIG(uap->mask, set); 1938 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 1939 SIG2OSIG(oset, td->td_retval[0]); 1940 return (error); 1941} 1942 1943int 1944ofreebsd32_sigpending(struct thread *td, 1945 struct ofreebsd32_sigpending_args *uap) 1946{ 1947 struct proc *p = td->td_proc; 1948 sigset_t siglist; 1949 1950 PROC_LOCK(p); 1951 siglist = p->p_siglist; 1952 SIGSETOR(siglist, td->td_siglist); 1953 PROC_UNLOCK(p); 1954 SIG2OSIG(siglist, td->td_retval[0]); 1955 return (0); 1956} 1957 1958struct sigvec32 { 1959 u_int32_t sv_handler; 1960 int sv_mask; 1961 int sv_flags; 1962}; 1963 1964int 1965ofreebsd32_sigvec(struct thread *td, 1966 struct ofreebsd32_sigvec_args *uap) 1967{ 1968 struct sigvec32 vec; 1969 struct sigaction sa, osa, *sap; 1970 int error; 1971 1972 if (uap->signum <= 0 || uap->signum >= ONSIG) 1973 return (EINVAL); 1974 1975 if (uap->nsv) { 1976 error = copyin(uap->nsv, &vec, sizeof(vec)); 1977 if (error) 1978 return (error); 1979 sa.sa_handler = PTRIN(vec.sv_handler); 1980 OSIG2SIG(vec.sv_mask, sa.sa_mask); 1981 sa.sa_flags = vec.sv_flags; 1982 sa.sa_flags ^= SA_RESTART; 1983 sap = &sa; 1984 } else 1985 sap = NULL; 1986 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 1987 if (error == 0 && uap->osv != NULL) { 1988 vec.sv_handler = PTROUT(osa.sa_handler); 1989 SIG2OSIG(osa.sa_mask, vec.sv_mask); 1990 vec.sv_flags = osa.sa_flags; 1991 vec.sv_flags &= ~SA_NOCLDWAIT; 1992 vec.sv_flags ^= SA_RESTART; 1993 error = copyout(&vec, uap->osv, sizeof(vec)); 1994 } 1995 return (error); 1996} 1997 1998int 1999ofreebsd32_sigblock(struct thread *td, 2000 struct ofreebsd32_sigblock_args *uap) 2001{ 2002 sigset_t set, oset; 2003 2004 OSIG2SIG(uap->mask, set); 2005 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2006 SIG2OSIG(oset, td->td_retval[0]); 2007 return (0); 2008} 2009 2010int 2011ofreebsd32_sigsetmask(struct thread *td, 2012 struct ofreebsd32_sigsetmask_args *uap) 2013{ 2014 sigset_t set, oset; 2015 2016 OSIG2SIG(uap->mask, set); 2017 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2018 SIG2OSIG(oset, td->td_retval[0]); 2019 return (0); 2020} 2021 2022int 2023ofreebsd32_sigsuspend(struct thread *td, 2024 struct ofreebsd32_sigsuspend_args *uap) 2025{ 2026 sigset_t mask; 2027 2028 OSIG2SIG(uap->mask, mask); 2029 return (kern_sigsuspend(td, mask)); 2030} 2031 2032struct sigstack32 { 2033 u_int32_t ss_sp; 2034 int ss_onstack; 2035}; 2036 2037int 2038ofreebsd32_sigstack(struct thread *td, 2039 struct ofreebsd32_sigstack_args *uap) 2040{ 2041 struct sigstack32 s32; 2042 struct sigstack nss, oss; 2043 int error = 0, unss; 2044 2045 if (uap->nss != NULL) { 2046 error = copyin(uap->nss, &s32, sizeof(s32)); 2047 if (error) 2048 return (error); 2049 nss.ss_sp = PTRIN(s32.ss_sp); 2050 CP(s32, nss, ss_onstack); 2051 unss = 1; 2052 } else { 2053 unss = 0; 2054 } 2055 oss.ss_sp = td->td_sigstk.ss_sp; 2056 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2057 if (unss) { 2058 td->td_sigstk.ss_sp = nss.ss_sp; 2059 td->td_sigstk.ss_size = 0; 2060 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2061 td->td_pflags |= TDP_ALTSTACK; 2062 } 2063 if (uap->oss != NULL) { 2064 s32.ss_sp = PTROUT(oss.ss_sp); 2065 CP(oss, s32, ss_onstack); 2066 error = copyout(&s32, uap->oss, sizeof(s32)); 2067 } 2068 return (error); 2069} 2070#endif 2071 2072int 2073freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2074{ 2075 struct timespec32 rmt32, rqt32; 2076 struct timespec rmt, rqt; 2077 int error; 2078 2079 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2080 if (error) 2081 return (error); 2082 2083 CP(rqt32, rqt, tv_sec); 2084 CP(rqt32, rqt, tv_nsec); 2085 2086 if (uap->rmtp && 2087 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2088 return (EFAULT); 2089 error = kern_nanosleep(td, &rqt, &rmt); 2090 if (error && uap->rmtp) { 2091 int error2; 2092 2093 CP(rmt, rmt32, tv_sec); 2094 CP(rmt, rmt32, tv_nsec); 2095 2096 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2097 if (error2) 2098 error = error2; 2099 } 2100 return (error); 2101} 2102 2103int 2104freebsd32_clock_gettime(struct thread *td, 2105 struct freebsd32_clock_gettime_args *uap) 2106{ 2107 struct timespec ats; 2108 struct timespec32 ats32; 2109 int error; 2110 2111 error = kern_clock_gettime(td, uap->clock_id, &ats); 2112 if (error == 0) { 2113 CP(ats, ats32, tv_sec); 2114 CP(ats, ats32, tv_nsec); 2115 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2116 } 2117 return (error); 2118} 2119 2120int 2121freebsd32_clock_settime(struct thread *td, 2122 struct freebsd32_clock_settime_args *uap) 2123{ 2124 struct timespec ats; 2125 struct timespec32 ats32; 2126 int error; 2127 2128 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2129 if (error) 2130 return (error); 2131 CP(ats32, ats, tv_sec); 2132 CP(ats32, ats, tv_nsec); 2133 2134 return (kern_clock_settime(td, uap->clock_id, &ats)); 2135} 2136 2137int 2138freebsd32_clock_getres(struct thread *td, 2139 struct freebsd32_clock_getres_args *uap) 2140{ 2141 struct timespec ts; 2142 struct timespec32 ts32; 2143 int error; 2144 2145 if (uap->tp == NULL) 2146 return (0); 2147 error = kern_clock_getres(td, uap->clock_id, &ts); 2148 if (error == 0) { 2149 CP(ts, ts32, tv_sec); 2150 CP(ts, ts32, tv_nsec); 2151 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2152 } 2153 return (error); 2154} 2155 2156int 2157freebsd32_thr_new(struct thread *td, 2158 struct freebsd32_thr_new_args *uap) 2159{ 2160 struct thr_param32 param32; 2161 struct thr_param param; 2162 int error; 2163 2164 if (uap->param_size < 0 || 2165 uap->param_size > sizeof(struct thr_param32)) 2166 return (EINVAL); 2167 bzero(¶m, sizeof(struct thr_param)); 2168 bzero(¶m32, sizeof(struct thr_param32)); 2169 error = copyin(uap->param, ¶m32, uap->param_size); 2170 if (error != 0) 2171 return (error); 2172 param.start_func = PTRIN(param32.start_func); 2173 param.arg = PTRIN(param32.arg); 2174 param.stack_base = PTRIN(param32.stack_base); 2175 param.stack_size = param32.stack_size; 2176 param.tls_base = PTRIN(param32.tls_base); 2177 param.tls_size = param32.tls_size; 2178 param.child_tid = PTRIN(param32.child_tid); 2179 param.parent_tid = PTRIN(param32.parent_tid); 2180 param.flags = param32.flags; 2181 param.rtp = PTRIN(param32.rtp); 2182 param.spare[0] = PTRIN(param32.spare[0]); 2183 param.spare[1] = PTRIN(param32.spare[1]); 2184 param.spare[2] = PTRIN(param32.spare[2]); 2185 2186 return (kern_thr_new(td, ¶m)); 2187} 2188 2189int 2190freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2191{ 2192 struct timespec32 ts32; 2193 struct timespec ts, *tsp; 2194 int error; 2195 2196 error = 0; 2197 tsp = NULL; 2198 if (uap->timeout != NULL) { 2199 error = copyin((const void *)uap->timeout, (void *)&ts32, 2200 sizeof(struct timespec32)); 2201 if (error != 0) 2202 return (error); 2203 ts.tv_sec = ts32.tv_sec; 2204 ts.tv_nsec = ts32.tv_nsec; 2205 tsp = &ts; 2206 } 2207 return (kern_thr_suspend(td, tsp)); 2208} 2209 2210void 2211siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2212{ 2213 bzero(dst, sizeof(*dst)); 2214 dst->si_signo = src->si_signo; 2215 dst->si_errno = src->si_errno; 2216 dst->si_code = src->si_code; 2217 dst->si_pid = src->si_pid; 2218 dst->si_uid = src->si_uid; 2219 dst->si_status = src->si_status; 2220 dst->si_addr = (uintptr_t)src->si_addr; 2221 dst->si_value.sigval_int = src->si_value.sival_int; 2222 dst->si_timerid = src->si_timerid; 2223 dst->si_overrun = src->si_overrun; 2224} 2225 2226int 2227freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2228{ 2229 struct timespec32 ts32; 2230 struct timespec ts; 2231 struct timespec *timeout; 2232 sigset_t set; 2233 ksiginfo_t ksi; 2234 struct siginfo32 si32; 2235 int error; 2236 2237 if (uap->timeout) { 2238 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2239 if (error) 2240 return (error); 2241 ts.tv_sec = ts32.tv_sec; 2242 ts.tv_nsec = ts32.tv_nsec; 2243 timeout = &ts; 2244 } else 2245 timeout = NULL; 2246 2247 error = copyin(uap->set, &set, sizeof(set)); 2248 if (error) 2249 return (error); 2250 2251 error = kern_sigtimedwait(td, set, &ksi, timeout); 2252 if (error) 2253 return (error); 2254 2255 if (uap->info) { 2256 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2257 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2258 } 2259 2260 if (error == 0) 2261 td->td_retval[0] = ksi.ksi_signo; 2262 return (error); 2263} 2264 2265/* 2266 * MPSAFE 2267 */ 2268int 2269freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2270{ 2271 ksiginfo_t ksi; 2272 struct siginfo32 si32; 2273 sigset_t set; 2274 int error; 2275 2276 error = copyin(uap->set, &set, sizeof(set)); 2277 if (error) 2278 return (error); 2279 2280 error = kern_sigtimedwait(td, set, &ksi, NULL); 2281 if (error) 2282 return (error); 2283 2284 if (uap->info) { 2285 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2286 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2287 } 2288 if (error == 0) 2289 td->td_retval[0] = ksi.ksi_signo; 2290 return (error); 2291} 2292 2293int 2294freebsd32_cpuset_setid(struct thread *td, 2295 struct freebsd32_cpuset_setid_args *uap) 2296{ 2297 struct cpuset_setid_args ap; 2298 2299 ap.which = uap->which; 2300 ap.id = PAIR32TO64(id_t,uap->id); 2301 ap.setid = uap->setid; 2302 2303 return (cpuset_setid(td, &ap)); 2304} 2305 2306int 2307freebsd32_cpuset_getid(struct thread *td, 2308 struct freebsd32_cpuset_getid_args *uap) 2309{ 2310 struct cpuset_getid_args ap; 2311 2312 ap.level = uap->level; 2313 ap.which = uap->which; 2314 ap.id = PAIR32TO64(id_t,uap->id); 2315 ap.setid = uap->setid; 2316 2317 return (cpuset_getid(td, &ap)); 2318} 2319 2320int 2321freebsd32_cpuset_getaffinity(struct thread *td, 2322 struct freebsd32_cpuset_getaffinity_args *uap) 2323{ 2324 struct cpuset_getaffinity_args ap; 2325 2326 ap.level = uap->level; 2327 ap.which = uap->which; 2328 ap.id = PAIR32TO64(id_t,uap->id); 2329 ap.cpusetsize = uap->cpusetsize; 2330 ap.mask = uap->mask; 2331 2332 return (cpuset_getaffinity(td, &ap)); 2333} 2334 2335int 2336freebsd32_cpuset_setaffinity(struct thread *td, 2337 struct freebsd32_cpuset_setaffinity_args *uap) 2338{ 2339 struct cpuset_setaffinity_args ap; 2340 2341 ap.level = uap->level; 2342 ap.which = uap->which; 2343 ap.id = PAIR32TO64(id_t,uap->id); 2344 ap.cpusetsize = uap->cpusetsize; 2345 ap.mask = uap->mask; 2346 2347 return (cpuset_setaffinity(td, &ap)); 2348} 2349 2350int 2351freebsd32_nmount(struct thread *td, 2352 struct freebsd32_nmount_args /* { 2353 struct iovec *iovp; 2354 unsigned int iovcnt; 2355 int flags; 2356 } */ *uap) 2357{ 2358 struct uio *auio; 2359 int error; 2360 2361 AUDIT_ARG_FFLAGS(uap->flags); 2362 2363 /* 2364 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2365 * userspace to set this flag, but we must filter it out if we want 2366 * MNT_UPDATE on the root file system to work. 2367 * MNT_ROOTFS should only be set in the kernel in vfs_mountroot_try(). 2368 */ 2369 uap->flags &= ~MNT_ROOTFS; 2370 2371 /* 2372 * check that we have an even number of iovec's 2373 * and that we have at least two options. 2374 */ 2375 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2376 return (EINVAL); 2377 2378 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2379 if (error) 2380 return (error); 2381 error = vfs_donmount(td, uap->flags, auio); 2382 2383 free(auio, M_IOV); 2384 return error; 2385} 2386 2387#if 0 2388int 2389freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2390{ 2391 struct yyy32 *p32, s32; 2392 struct yyy *p = NULL, s; 2393 struct xxx_arg ap; 2394 int error; 2395 2396 if (uap->zzz) { 2397 error = copyin(uap->zzz, &s32, sizeof(s32)); 2398 if (error) 2399 return (error); 2400 /* translate in */ 2401 p = &s; 2402 } 2403 error = kern_xxx(td, p); 2404 if (error) 2405 return (error); 2406 if (uap->zzz) { 2407 /* translate out */ 2408 error = copyout(&s32, p32, sizeof(s32)); 2409 } 2410 return (error); 2411} 2412#endif 2413 2414int 2415syscall32_register(int *offset, struct sysent *new_sysent, 2416 struct sysent *old_sysent) 2417{ 2418 if (*offset == NO_SYSCALL) { 2419 int i; 2420 2421 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2422 if (freebsd32_sysent[i].sy_call == 2423 (sy_call_t *)lkmnosys) 2424 break; 2425 if (i == SYS_MAXSYSCALL) 2426 return (ENFILE); 2427 *offset = i; 2428 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2429 return (EINVAL); 2430 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2431 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2432 return (EEXIST); 2433 2434 *old_sysent = freebsd32_sysent[*offset]; 2435 freebsd32_sysent[*offset] = *new_sysent; 2436 return 0; 2437} 2438 2439int 2440syscall32_deregister(int *offset, struct sysent *old_sysent) 2441{ 2442 2443 if (*offset) 2444 freebsd32_sysent[*offset] = *old_sysent; 2445 return 0; 2446} 2447 2448int 2449syscall32_module_handler(struct module *mod, int what, void *arg) 2450{ 2451 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2452 modspecific_t ms; 2453 int error; 2454 2455 switch (what) { 2456 case MOD_LOAD: 2457 error = syscall32_register(data->offset, data->new_sysent, 2458 &data->old_sysent); 2459 if (error) { 2460 /* Leave a mark so we know to safely unload below. */ 2461 data->offset = NULL; 2462 return error; 2463 } 2464 ms.intval = *data->offset; 2465 MOD_XLOCK; 2466 module_setspecific(mod, &ms); 2467 MOD_XUNLOCK; 2468 if (data->chainevh) 2469 error = data->chainevh(mod, what, data->chainarg); 2470 return (error); 2471 case MOD_UNLOAD: 2472 /* 2473 * MOD_LOAD failed, so just return without calling the 2474 * chained handler since we didn't pass along the MOD_LOAD 2475 * event. 2476 */ 2477 if (data->offset == NULL) 2478 return (0); 2479 if (data->chainevh) { 2480 error = data->chainevh(mod, what, data->chainarg); 2481 if (error) 2482 return (error); 2483 } 2484 error = syscall32_deregister(data->offset, &data->old_sysent); 2485 return (error); 2486 default: 2487 error = EOPNOTSUPP; 2488 if (data->chainevh) 2489 error = data->chainevh(mod, what, data->chainarg); 2490 return (error); 2491 } 2492} 2493 2494int 2495syscall32_helper_register(struct syscall_helper_data *sd) 2496{ 2497 struct syscall_helper_data *sd1; 2498 int error; 2499 2500 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2501 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2502 &sd1->old_sysent); 2503 if (error != 0) { 2504 syscall32_helper_unregister(sd); 2505 return (error); 2506 } 2507 sd1->registered = 1; 2508 } 2509 return (0); 2510} 2511 2512int 2513syscall32_helper_unregister(struct syscall_helper_data *sd) 2514{ 2515 struct syscall_helper_data *sd1; 2516 2517 for (sd1 = sd; sd1->registered != 0; sd1++) { 2518 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2519 sd1->registered = 0; 2520 } 2521 return (0); 2522} 2523 2524register_t * 2525freebsd32_copyout_strings(struct image_params *imgp) 2526{ 2527 int argc, envc; 2528 u_int32_t *vectp; 2529 char *stringp, *destp; 2530 u_int32_t *stack_base; 2531 struct freebsd32_ps_strings *arginfo; 2532 size_t execpath_len; 2533 int szsigcode; 2534 2535 /* 2536 * Calculate string base and vector table pointers. 2537 * Also deal with signal trampoline code for this exec type. 2538 */ 2539 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2540 execpath_len = strlen(imgp->execpath) + 1; 2541 else 2542 execpath_len = 0; 2543 arginfo = (struct freebsd32_ps_strings *)FREEBSD32_PS_STRINGS; 2544 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2545 destp = (caddr_t)arginfo - szsigcode - SPARE_USRSPACE - 2546 roundup(execpath_len, sizeof(char *)) - 2547 roundup((ARG_MAX - imgp->args->stringspace), sizeof(char *)); 2548 2549 /* 2550 * install sigcode 2551 */ 2552 if (szsigcode) 2553 copyout(imgp->proc->p_sysent->sv_sigcode, 2554 ((caddr_t)arginfo - szsigcode), szsigcode); 2555 2556 /* 2557 * Copy the image path for the rtld. 2558 */ 2559 if (execpath_len != 0) { 2560 imgp->execpathp = (uintptr_t)arginfo - szsigcode - execpath_len; 2561 copyout(imgp->execpath, (void *)imgp->execpathp, 2562 execpath_len); 2563 } 2564 2565 /* 2566 * If we have a valid auxargs ptr, prepare some room 2567 * on the stack. 2568 */ 2569 if (imgp->auxargs) { 2570 /* 2571 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2572 * lower compatibility. 2573 */ 2574 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2575 : (AT_COUNT * 2); 2576 /* 2577 * The '+ 2' is for the null pointers at the end of each of 2578 * the arg and env vector sets,and imgp->auxarg_size is room 2579 * for argument of Runtime loader. 2580 */ 2581 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2582 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2583 sizeof(u_int32_t)); 2584 } else 2585 /* 2586 * The '+ 2' is for the null pointers at the end of each of 2587 * the arg and env vector sets 2588 */ 2589 vectp = (u_int32_t *) 2590 (destp - (imgp->args->argc + imgp->args->envc + 2) * sizeof(u_int32_t)); 2591 2592 /* 2593 * vectp also becomes our initial stack base 2594 */ 2595 stack_base = vectp; 2596 2597 stringp = imgp->args->begin_argv; 2598 argc = imgp->args->argc; 2599 envc = imgp->args->envc; 2600 /* 2601 * Copy out strings - arguments and environment. 2602 */ 2603 copyout(stringp, destp, ARG_MAX - imgp->args->stringspace); 2604 2605 /* 2606 * Fill in "ps_strings" struct for ps, w, etc. 2607 */ 2608 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2609 suword32(&arginfo->ps_nargvstr, argc); 2610 2611 /* 2612 * Fill in argument portion of vector table. 2613 */ 2614 for (; argc > 0; --argc) { 2615 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2616 while (*stringp++ != 0) 2617 destp++; 2618 destp++; 2619 } 2620 2621 /* a null vector table pointer separates the argp's from the envp's */ 2622 suword32(vectp++, 0); 2623 2624 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2625 suword32(&arginfo->ps_nenvstr, envc); 2626 2627 /* 2628 * Fill in environment portion of vector table. 2629 */ 2630 for (; envc > 0; --envc) { 2631 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2632 while (*stringp++ != 0) 2633 destp++; 2634 destp++; 2635 } 2636 2637 /* end of vector table is a null pointer */ 2638 suword32(vectp, 0); 2639 2640 return ((register_t *)stack_base); 2641} 2642 2643