freebsd32_misc.c revision 205792
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 205792 2010-03-28 13:13:22Z ed $"); 29 30#include "opt_compat.h" 31#include "opt_inet.h" 32#include "opt_inet6.h" 33 34#define __ELF_WORD_SIZE 32 35 36#include <sys/param.h> 37#include <sys/bus.h> 38#include <sys/clock.h> 39#include <sys/exec.h> 40#include <sys/fcntl.h> 41#include <sys/filedesc.h> 42#include <sys/imgact.h> 43#include <sys/jail.h> 44#include <sys/kernel.h> 45#include <sys/limits.h> 46#include <sys/lock.h> 47#include <sys/malloc.h> 48#include <sys/file.h> /* Must come after sys/malloc.h */ 49#include <sys/imgact.h> 50#include <sys/mbuf.h> 51#include <sys/mman.h> 52#include <sys/module.h> 53#include <sys/mount.h> 54#include <sys/mutex.h> 55#include <sys/namei.h> 56#include <sys/proc.h> 57#include <sys/reboot.h> 58#include <sys/resource.h> 59#include <sys/resourcevar.h> 60#include <sys/selinfo.h> 61#include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 62#include <sys/pipe.h> /* Must come after sys/selinfo.h */ 63#include <sys/signal.h> 64#include <sys/signalvar.h> 65#include <sys/socket.h> 66#include <sys/socketvar.h> 67#include <sys/stat.h> 68#include <sys/syscall.h> 69#include <sys/syscallsubr.h> 70#include <sys/sysctl.h> 71#include <sys/sysent.h> 72#include <sys/sysproto.h> 73#include <sys/systm.h> 74#include <sys/thr.h> 75#include <sys/unistd.h> 76#include <sys/ucontext.h> 77#include <sys/vnode.h> 78#include <sys/wait.h> 79#include <sys/ipc.h> 80#include <sys/msg.h> 81#include <sys/sem.h> 82#include <sys/shm.h> 83 84#ifdef INET 85#include <netinet/in.h> 86#endif 87 88#include <vm/vm.h> 89#include <vm/vm_kern.h> 90#include <vm/vm_param.h> 91#include <vm/pmap.h> 92#include <vm/vm_map.h> 93#include <vm/vm_object.h> 94#include <vm/vm_extern.h> 95 96#include <machine/cpu.h> 97#include <machine/elf.h> 98 99#include <security/audit/audit.h> 100 101#include <compat/freebsd32/freebsd32_util.h> 102#include <compat/freebsd32/freebsd32.h> 103#include <compat/freebsd32/freebsd32_ipc.h> 104#include <compat/freebsd32/freebsd32_signal.h> 105#include <compat/freebsd32/freebsd32_proto.h> 106 107CTASSERT(sizeof(struct timeval32) == 8); 108CTASSERT(sizeof(struct timespec32) == 8); 109CTASSERT(sizeof(struct itimerval32) == 16); 110CTASSERT(sizeof(struct statfs32) == 256); 111CTASSERT(sizeof(struct rusage32) == 72); 112CTASSERT(sizeof(struct sigaltstack32) == 12); 113CTASSERT(sizeof(struct kevent32) == 20); 114CTASSERT(sizeof(struct iovec32) == 8); 115CTASSERT(sizeof(struct msghdr32) == 28); 116CTASSERT(sizeof(struct stat32) == 96); 117CTASSERT(sizeof(struct sigaction32) == 24); 118 119static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 120static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 121 122#if BYTE_ORDER == BIG_ENDIAN 123#define PAIR32TO64(type, name) ((name ## 2) | ((type)(name ## 1) << 32)) 124#define RETVAL_HI 0 125#define RETVAL_LO 1 126#else 127#define PAIR32TO64(type, name) ((name ## 1) | ((type)(name ## 2) << 32)) 128#define RETVAL_HI 1 129#define RETVAL_LO 0 130#endif 131 132int 133freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 134{ 135 int error, status; 136 struct rusage32 ru32; 137 struct rusage ru, *rup; 138 139 if (uap->rusage != NULL) 140 rup = &ru; 141 else 142 rup = NULL; 143 error = kern_wait(td, uap->pid, &status, uap->options, rup); 144 if (error) 145 return (error); 146 if (uap->status != NULL) 147 error = copyout(&status, uap->status, sizeof(status)); 148 if (uap->rusage != NULL && error == 0) { 149 TV_CP(ru, ru32, ru_utime); 150 TV_CP(ru, ru32, ru_stime); 151 CP(ru, ru32, ru_maxrss); 152 CP(ru, ru32, ru_ixrss); 153 CP(ru, ru32, ru_idrss); 154 CP(ru, ru32, ru_isrss); 155 CP(ru, ru32, ru_minflt); 156 CP(ru, ru32, ru_majflt); 157 CP(ru, ru32, ru_nswap); 158 CP(ru, ru32, ru_inblock); 159 CP(ru, ru32, ru_oublock); 160 CP(ru, ru32, ru_msgsnd); 161 CP(ru, ru32, ru_msgrcv); 162 CP(ru, ru32, ru_nsignals); 163 CP(ru, ru32, ru_nvcsw); 164 CP(ru, ru32, ru_nivcsw); 165 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 166 } 167 return (error); 168} 169 170#ifdef COMPAT_FREEBSD4 171static void 172copy_statfs(struct statfs *in, struct statfs32 *out) 173{ 174 175 statfs_scale_blocks(in, INT32_MAX); 176 bzero(out, sizeof(*out)); 177 CP(*in, *out, f_bsize); 178 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 179 CP(*in, *out, f_blocks); 180 CP(*in, *out, f_bfree); 181 CP(*in, *out, f_bavail); 182 out->f_files = MIN(in->f_files, INT32_MAX); 183 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 184 CP(*in, *out, f_fsid); 185 CP(*in, *out, f_owner); 186 CP(*in, *out, f_type); 187 CP(*in, *out, f_flags); 188 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 189 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 190 strlcpy(out->f_fstypename, 191 in->f_fstypename, MFSNAMELEN); 192 strlcpy(out->f_mntonname, 193 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 194 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 195 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 196 strlcpy(out->f_mntfromname, 197 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 198} 199#endif 200 201#ifdef COMPAT_FREEBSD4 202int 203freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 204{ 205 struct statfs *buf, *sp; 206 struct statfs32 stat32; 207 size_t count, size; 208 int error; 209 210 count = uap->bufsize / sizeof(struct statfs32); 211 size = count * sizeof(struct statfs); 212 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags); 213 if (size > 0) { 214 count = td->td_retval[0]; 215 sp = buf; 216 while (count > 0 && error == 0) { 217 copy_statfs(sp, &stat32); 218 error = copyout(&stat32, uap->buf, sizeof(stat32)); 219 sp++; 220 uap->buf++; 221 count--; 222 } 223 free(buf, M_TEMP); 224 } 225 return (error); 226} 227#endif 228 229int 230freebsd32_sigaltstack(struct thread *td, 231 struct freebsd32_sigaltstack_args *uap) 232{ 233 struct sigaltstack32 s32; 234 struct sigaltstack ss, oss, *ssp; 235 int error; 236 237 if (uap->ss != NULL) { 238 error = copyin(uap->ss, &s32, sizeof(s32)); 239 if (error) 240 return (error); 241 PTRIN_CP(s32, ss, ss_sp); 242 CP(s32, ss, ss_size); 243 CP(s32, ss, ss_flags); 244 ssp = &ss; 245 } else 246 ssp = NULL; 247 error = kern_sigaltstack(td, ssp, &oss); 248 if (error == 0 && uap->oss != NULL) { 249 PTROUT_CP(oss, s32, ss_sp); 250 CP(oss, s32, ss_size); 251 CP(oss, s32, ss_flags); 252 error = copyout(&s32, uap->oss, sizeof(s32)); 253 } 254 return (error); 255} 256 257/* 258 * Custom version of exec_copyin_args() so that we can translate 259 * the pointers. 260 */ 261static int 262freebsd32_exec_copyin_args(struct image_args *args, char *fname, 263 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 264{ 265 char *argp, *envp; 266 u_int32_t *p32, arg; 267 size_t length; 268 int error; 269 270 bzero(args, sizeof(*args)); 271 if (argv == NULL) 272 return (EFAULT); 273 274 /* 275 * Allocate temporary demand zeroed space for argument and 276 * environment strings 277 */ 278 args->buf = (char *) kmem_alloc_wait(exec_map, 279 PATH_MAX + ARG_MAX + MAXSHELLCMDLEN); 280 if (args->buf == NULL) 281 return (ENOMEM); 282 args->begin_argv = args->buf; 283 args->endp = args->begin_argv; 284 args->stringspace = ARG_MAX; 285 286 /* 287 * Copy the file name. 288 */ 289 if (fname != NULL) { 290 args->fname = args->buf + ARG_MAX; 291 error = (segflg == UIO_SYSSPACE) ? 292 copystr(fname, args->fname, PATH_MAX, &length) : 293 copyinstr(fname, args->fname, PATH_MAX, &length); 294 if (error != 0) 295 goto err_exit; 296 } else 297 args->fname = NULL; 298 299 /* 300 * extract arguments first 301 */ 302 p32 = argv; 303 for (;;) { 304 error = copyin(p32++, &arg, sizeof(arg)); 305 if (error) 306 goto err_exit; 307 if (arg == 0) 308 break; 309 argp = PTRIN(arg); 310 error = copyinstr(argp, args->endp, args->stringspace, &length); 311 if (error) { 312 if (error == ENAMETOOLONG) 313 error = E2BIG; 314 goto err_exit; 315 } 316 args->stringspace -= length; 317 args->endp += length; 318 args->argc++; 319 } 320 321 args->begin_envv = args->endp; 322 323 /* 324 * extract environment strings 325 */ 326 if (envv) { 327 p32 = envv; 328 for (;;) { 329 error = copyin(p32++, &arg, sizeof(arg)); 330 if (error) 331 goto err_exit; 332 if (arg == 0) 333 break; 334 envp = PTRIN(arg); 335 error = copyinstr(envp, args->endp, args->stringspace, 336 &length); 337 if (error) { 338 if (error == ENAMETOOLONG) 339 error = E2BIG; 340 goto err_exit; 341 } 342 args->stringspace -= length; 343 args->endp += length; 344 args->envc++; 345 } 346 } 347 348 return (0); 349 350err_exit: 351 kmem_free_wakeup(exec_map, (vm_offset_t)args->buf, 352 PATH_MAX + ARG_MAX + MAXSHELLCMDLEN); 353 args->buf = NULL; 354 return (error); 355} 356 357int 358freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 359{ 360 struct image_args eargs; 361 int error; 362 363 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 364 uap->argv, uap->envv); 365 if (error == 0) 366 error = kern_execve(td, &eargs, NULL); 367 return (error); 368} 369 370int 371freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 372{ 373 struct image_args eargs; 374 int error; 375 376 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 377 uap->argv, uap->envv); 378 if (error == 0) { 379 eargs.fd = uap->fd; 380 error = kern_execve(td, &eargs, NULL); 381 } 382 return (error); 383} 384 385#ifdef __ia64__ 386static int 387freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 388 int prot, int fd, off_t pos) 389{ 390 vm_map_t map; 391 vm_map_entry_t entry; 392 int rv; 393 394 map = &td->td_proc->p_vmspace->vm_map; 395 if (fd != -1) 396 prot |= VM_PROT_WRITE; 397 398 if (vm_map_lookup_entry(map, start, &entry)) { 399 if ((entry->protection & prot) != prot) { 400 rv = vm_map_protect(map, 401 trunc_page(start), 402 round_page(end), 403 entry->protection | prot, 404 FALSE); 405 if (rv != KERN_SUCCESS) 406 return (EINVAL); 407 } 408 } else { 409 vm_offset_t addr = trunc_page(start); 410 rv = vm_map_find(map, 0, 0, 411 &addr, PAGE_SIZE, FALSE, prot, 412 VM_PROT_ALL, 0); 413 if (rv != KERN_SUCCESS) 414 return (EINVAL); 415 } 416 417 if (fd != -1) { 418 struct pread_args r; 419 r.fd = fd; 420 r.buf = (void *) start; 421 r.nbyte = end - start; 422 r.offset = pos; 423 return (pread(td, &r)); 424 } else { 425 while (start < end) { 426 subyte((void *) start, 0); 427 start++; 428 } 429 return (0); 430 } 431} 432#endif 433 434int 435freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 436{ 437 struct mmap_args ap; 438 vm_offset_t addr = (vm_offset_t) uap->addr; 439 vm_size_t len = uap->len; 440 int prot = uap->prot; 441 int flags = uap->flags; 442 int fd = uap->fd; 443 off_t pos = PAIR32TO64(off_t,uap->pos); 444#ifdef __ia64__ 445 vm_size_t pageoff; 446 int error; 447 448 /* 449 * Attempt to handle page size hassles. 450 */ 451 pageoff = (pos & PAGE_MASK); 452 if (flags & MAP_FIXED) { 453 vm_offset_t start, end; 454 start = addr; 455 end = addr + len; 456 457 if (start != trunc_page(start)) { 458 error = freebsd32_mmap_partial(td, start, 459 round_page(start), prot, 460 fd, pos); 461 if (fd != -1) 462 pos += round_page(start) - start; 463 start = round_page(start); 464 } 465 if (end != round_page(end)) { 466 vm_offset_t t = trunc_page(end); 467 error = freebsd32_mmap_partial(td, t, end, 468 prot, fd, 469 pos + t - start); 470 end = trunc_page(end); 471 } 472 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 473 /* 474 * We can't map this region at all. The specified 475 * address doesn't have the same alignment as the file 476 * position. Fake the mapping by simply reading the 477 * entire region into memory. First we need to make 478 * sure the region exists. 479 */ 480 vm_map_t map; 481 struct pread_args r; 482 int rv; 483 484 prot |= VM_PROT_WRITE; 485 map = &td->td_proc->p_vmspace->vm_map; 486 rv = vm_map_remove(map, start, end); 487 if (rv != KERN_SUCCESS) 488 return (EINVAL); 489 rv = vm_map_find(map, 0, 0, 490 &start, end - start, FALSE, 491 prot, VM_PROT_ALL, 0); 492 if (rv != KERN_SUCCESS) 493 return (EINVAL); 494 r.fd = fd; 495 r.buf = (void *) start; 496 r.nbyte = end - start; 497 r.offset = pos; 498 error = pread(td, &r); 499 if (error) 500 return (error); 501 502 td->td_retval[0] = addr; 503 return (0); 504 } 505 if (end == start) { 506 /* 507 * After dealing with the ragged ends, there 508 * might be none left. 509 */ 510 td->td_retval[0] = addr; 511 return (0); 512 } 513 addr = start; 514 len = end - start; 515 } 516#endif 517 518 ap.addr = (void *) addr; 519 ap.len = len; 520 ap.prot = prot; 521 ap.flags = flags; 522 ap.fd = fd; 523 ap.pos = pos; 524 525 return (mmap(td, &ap)); 526} 527 528#ifdef COMPAT_FREEBSD6 529int 530freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 531{ 532 struct freebsd32_mmap_args ap; 533 534 ap.addr = uap->addr; 535 ap.len = uap->len; 536 ap.prot = uap->prot; 537 ap.flags = uap->flags; 538 ap.fd = uap->fd; 539 ap.pos1 = uap->pos1; 540 ap.pos2 = uap->pos2; 541 542 return (freebsd32_mmap(td, &ap)); 543} 544#endif 545 546int 547freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 548{ 549 struct itimerval itv, oitv, *itvp; 550 struct itimerval32 i32; 551 int error; 552 553 if (uap->itv != NULL) { 554 error = copyin(uap->itv, &i32, sizeof(i32)); 555 if (error) 556 return (error); 557 TV_CP(i32, itv, it_interval); 558 TV_CP(i32, itv, it_value); 559 itvp = &itv; 560 } else 561 itvp = NULL; 562 error = kern_setitimer(td, uap->which, itvp, &oitv); 563 if (error || uap->oitv == NULL) 564 return (error); 565 TV_CP(oitv, i32, it_interval); 566 TV_CP(oitv, i32, it_value); 567 return (copyout(&i32, uap->oitv, sizeof(i32))); 568} 569 570int 571freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 572{ 573 struct itimerval itv; 574 struct itimerval32 i32; 575 int error; 576 577 error = kern_getitimer(td, uap->which, &itv); 578 if (error || uap->itv == NULL) 579 return (error); 580 TV_CP(itv, i32, it_interval); 581 TV_CP(itv, i32, it_value); 582 return (copyout(&i32, uap->itv, sizeof(i32))); 583} 584 585int 586freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 587{ 588 struct timeval32 tv32; 589 struct timeval tv, *tvp; 590 int error; 591 592 if (uap->tv != NULL) { 593 error = copyin(uap->tv, &tv32, sizeof(tv32)); 594 if (error) 595 return (error); 596 CP(tv32, tv, tv_sec); 597 CP(tv32, tv, tv_usec); 598 tvp = &tv; 599 } else 600 tvp = NULL; 601 /* 602 * XXX Do pointers need PTRIN()? 603 */ 604 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 605 sizeof(int32_t) * 8)); 606} 607 608int 609freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 610{ 611 struct timespec32 ts32; 612 struct timespec ts; 613 struct timeval tv, *tvp; 614 sigset_t set, *uset; 615 int error; 616 617 if (uap->ts != NULL) { 618 error = copyin(uap->ts, &ts32, sizeof(ts32)); 619 if (error != 0) 620 return (error); 621 CP(ts32, ts, tv_sec); 622 CP(ts32, ts, tv_nsec); 623 TIMESPEC_TO_TIMEVAL(&tv, &ts); 624 tvp = &tv; 625 } else 626 tvp = NULL; 627 if (uap->sm != NULL) { 628 error = copyin(uap->sm, &set, sizeof(set)); 629 if (error != 0) 630 return (error); 631 uset = &set; 632 } else 633 uset = NULL; 634 /* 635 * XXX Do pointers need PTRIN()? 636 */ 637 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 638 uset, sizeof(int32_t) * 8); 639 return (error); 640} 641 642/* 643 * Copy 'count' items into the destination list pointed to by uap->eventlist. 644 */ 645static int 646freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 647{ 648 struct freebsd32_kevent_args *uap; 649 struct kevent32 ks32[KQ_NEVENTS]; 650 int i, error = 0; 651 652 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 653 uap = (struct freebsd32_kevent_args *)arg; 654 655 for (i = 0; i < count; i++) { 656 CP(kevp[i], ks32[i], ident); 657 CP(kevp[i], ks32[i], filter); 658 CP(kevp[i], ks32[i], flags); 659 CP(kevp[i], ks32[i], fflags); 660 CP(kevp[i], ks32[i], data); 661 PTROUT_CP(kevp[i], ks32[i], udata); 662 } 663 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 664 if (error == 0) 665 uap->eventlist += count; 666 return (error); 667} 668 669/* 670 * Copy 'count' items from the list pointed to by uap->changelist. 671 */ 672static int 673freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 674{ 675 struct freebsd32_kevent_args *uap; 676 struct kevent32 ks32[KQ_NEVENTS]; 677 int i, error = 0; 678 679 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 680 uap = (struct freebsd32_kevent_args *)arg; 681 682 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 683 if (error) 684 goto done; 685 uap->changelist += count; 686 687 for (i = 0; i < count; i++) { 688 CP(ks32[i], kevp[i], ident); 689 CP(ks32[i], kevp[i], filter); 690 CP(ks32[i], kevp[i], flags); 691 CP(ks32[i], kevp[i], fflags); 692 CP(ks32[i], kevp[i], data); 693 PTRIN_CP(ks32[i], kevp[i], udata); 694 } 695done: 696 return (error); 697} 698 699int 700freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 701{ 702 struct timespec32 ts32; 703 struct timespec ts, *tsp; 704 struct kevent_copyops k_ops = { uap, 705 freebsd32_kevent_copyout, 706 freebsd32_kevent_copyin}; 707 int error; 708 709 710 if (uap->timeout) { 711 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 712 if (error) 713 return (error); 714 CP(ts32, ts, tv_sec); 715 CP(ts32, ts, tv_nsec); 716 tsp = &ts; 717 } else 718 tsp = NULL; 719 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 720 &k_ops, tsp); 721 return (error); 722} 723 724int 725freebsd32_gettimeofday(struct thread *td, 726 struct freebsd32_gettimeofday_args *uap) 727{ 728 struct timeval atv; 729 struct timeval32 atv32; 730 struct timezone rtz; 731 int error = 0; 732 733 if (uap->tp) { 734 microtime(&atv); 735 CP(atv, atv32, tv_sec); 736 CP(atv, atv32, tv_usec); 737 error = copyout(&atv32, uap->tp, sizeof (atv32)); 738 } 739 if (error == 0 && uap->tzp != NULL) { 740 rtz.tz_minuteswest = tz_minuteswest; 741 rtz.tz_dsttime = tz_dsttime; 742 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 743 } 744 return (error); 745} 746 747int 748freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 749{ 750 struct rusage32 s32; 751 struct rusage s; 752 int error; 753 754 error = kern_getrusage(td, uap->who, &s); 755 if (error) 756 return (error); 757 if (uap->rusage != NULL) { 758 TV_CP(s, s32, ru_utime); 759 TV_CP(s, s32, ru_stime); 760 CP(s, s32, ru_maxrss); 761 CP(s, s32, ru_ixrss); 762 CP(s, s32, ru_idrss); 763 CP(s, s32, ru_isrss); 764 CP(s, s32, ru_minflt); 765 CP(s, s32, ru_majflt); 766 CP(s, s32, ru_nswap); 767 CP(s, s32, ru_inblock); 768 CP(s, s32, ru_oublock); 769 CP(s, s32, ru_msgsnd); 770 CP(s, s32, ru_msgrcv); 771 CP(s, s32, ru_nsignals); 772 CP(s, s32, ru_nvcsw); 773 CP(s, s32, ru_nivcsw); 774 error = copyout(&s32, uap->rusage, sizeof(s32)); 775 } 776 return (error); 777} 778 779static int 780freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 781{ 782 struct iovec32 iov32; 783 struct iovec *iov; 784 struct uio *uio; 785 u_int iovlen; 786 int error, i; 787 788 *uiop = NULL; 789 if (iovcnt > UIO_MAXIOV) 790 return (EINVAL); 791 iovlen = iovcnt * sizeof(struct iovec); 792 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 793 iov = (struct iovec *)(uio + 1); 794 for (i = 0; i < iovcnt; i++) { 795 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 796 if (error) { 797 free(uio, M_IOV); 798 return (error); 799 } 800 iov[i].iov_base = PTRIN(iov32.iov_base); 801 iov[i].iov_len = iov32.iov_len; 802 } 803 uio->uio_iov = iov; 804 uio->uio_iovcnt = iovcnt; 805 uio->uio_segflg = UIO_USERSPACE; 806 uio->uio_offset = -1; 807 uio->uio_resid = 0; 808 for (i = 0; i < iovcnt; i++) { 809 if (iov->iov_len > INT_MAX - uio->uio_resid) { 810 free(uio, M_IOV); 811 return (EINVAL); 812 } 813 uio->uio_resid += iov->iov_len; 814 iov++; 815 } 816 *uiop = uio; 817 return (0); 818} 819 820int 821freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 822{ 823 struct uio *auio; 824 int error; 825 826 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 827 if (error) 828 return (error); 829 error = kern_readv(td, uap->fd, auio); 830 free(auio, M_IOV); 831 return (error); 832} 833 834int 835freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 836{ 837 struct uio *auio; 838 int error; 839 840 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 841 if (error) 842 return (error); 843 error = kern_writev(td, uap->fd, auio); 844 free(auio, M_IOV); 845 return (error); 846} 847 848int 849freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 850{ 851 struct uio *auio; 852 int error; 853 854 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 855 if (error) 856 return (error); 857 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 858 free(auio, M_IOV); 859 return (error); 860} 861 862int 863freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 864{ 865 struct uio *auio; 866 int error; 867 868 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 869 if (error) 870 return (error); 871 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 872 free(auio, M_IOV); 873 return (error); 874} 875 876int 877freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 878 int error) 879{ 880 struct iovec32 iov32; 881 struct iovec *iov; 882 u_int iovlen; 883 int i; 884 885 *iovp = NULL; 886 if (iovcnt > UIO_MAXIOV) 887 return (error); 888 iovlen = iovcnt * sizeof(struct iovec); 889 iov = malloc(iovlen, M_IOV, M_WAITOK); 890 for (i = 0; i < iovcnt; i++) { 891 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 892 if (error) { 893 free(iov, M_IOV); 894 return (error); 895 } 896 iov[i].iov_base = PTRIN(iov32.iov_base); 897 iov[i].iov_len = iov32.iov_len; 898 } 899 *iovp = iov; 900 return (0); 901} 902 903static int 904freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 905{ 906 struct msghdr32 m32; 907 int error; 908 909 error = copyin(msg32, &m32, sizeof(m32)); 910 if (error) 911 return (error); 912 msg->msg_name = PTRIN(m32.msg_name); 913 msg->msg_namelen = m32.msg_namelen; 914 msg->msg_iov = PTRIN(m32.msg_iov); 915 msg->msg_iovlen = m32.msg_iovlen; 916 msg->msg_control = PTRIN(m32.msg_control); 917 msg->msg_controllen = m32.msg_controllen; 918 msg->msg_flags = m32.msg_flags; 919 return (0); 920} 921 922static int 923freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 924{ 925 struct msghdr32 m32; 926 int error; 927 928 m32.msg_name = PTROUT(msg->msg_name); 929 m32.msg_namelen = msg->msg_namelen; 930 m32.msg_iov = PTROUT(msg->msg_iov); 931 m32.msg_iovlen = msg->msg_iovlen; 932 m32.msg_control = PTROUT(msg->msg_control); 933 m32.msg_controllen = msg->msg_controllen; 934 m32.msg_flags = msg->msg_flags; 935 error = copyout(&m32, msg32, sizeof(m32)); 936 return (error); 937} 938 939#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 940#define FREEBSD32_ALIGN(p) \ 941 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 942#define FREEBSD32_CMSG_SPACE(l) \ 943 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 944 945#define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 946 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 947static int 948freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 949{ 950 struct cmsghdr *cm; 951 void *data; 952 socklen_t clen, datalen; 953 int error; 954 caddr_t ctlbuf; 955 int len, maxlen, copylen; 956 struct mbuf *m; 957 error = 0; 958 959 len = msg->msg_controllen; 960 maxlen = msg->msg_controllen; 961 msg->msg_controllen = 0; 962 963 m = control; 964 ctlbuf = msg->msg_control; 965 966 while (m && len > 0) { 967 cm = mtod(m, struct cmsghdr *); 968 clen = m->m_len; 969 970 while (cm != NULL) { 971 972 if (sizeof(struct cmsghdr) > clen || 973 cm->cmsg_len > clen) { 974 error = EINVAL; 975 break; 976 } 977 978 data = CMSG_DATA(cm); 979 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 980 981 /* Adjust message length */ 982 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 983 datalen; 984 985 986 /* Copy cmsghdr */ 987 copylen = sizeof(struct cmsghdr); 988 if (len < copylen) { 989 msg->msg_flags |= MSG_CTRUNC; 990 copylen = len; 991 } 992 993 error = copyout(cm,ctlbuf,copylen); 994 if (error) 995 goto exit; 996 997 ctlbuf += FREEBSD32_ALIGN(copylen); 998 len -= FREEBSD32_ALIGN(copylen); 999 1000 if (len <= 0) 1001 break; 1002 1003 /* Copy data */ 1004 copylen = datalen; 1005 if (len < copylen) { 1006 msg->msg_flags |= MSG_CTRUNC; 1007 copylen = len; 1008 } 1009 1010 error = copyout(data,ctlbuf,copylen); 1011 if (error) 1012 goto exit; 1013 1014 ctlbuf += FREEBSD32_ALIGN(copylen); 1015 len -= FREEBSD32_ALIGN(copylen); 1016 1017 if (CMSG_SPACE(datalen) < clen) { 1018 clen -= CMSG_SPACE(datalen); 1019 cm = (struct cmsghdr *) 1020 ((caddr_t)cm + CMSG_SPACE(datalen)); 1021 } else { 1022 clen = 0; 1023 cm = NULL; 1024 } 1025 } 1026 m = m->m_next; 1027 } 1028 1029 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 1030 1031exit: 1032 return (error); 1033 1034} 1035 1036int 1037freebsd32_recvmsg(td, uap) 1038 struct thread *td; 1039 struct freebsd32_recvmsg_args /* { 1040 int s; 1041 struct msghdr32 *msg; 1042 int flags; 1043 } */ *uap; 1044{ 1045 struct msghdr msg; 1046 struct msghdr32 m32; 1047 struct iovec *uiov, *iov; 1048 struct mbuf *control = NULL; 1049 struct mbuf **controlp; 1050 1051 int error; 1052 error = copyin(uap->msg, &m32, sizeof(m32)); 1053 if (error) 1054 return (error); 1055 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1056 if (error) 1057 return (error); 1058 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1059 EMSGSIZE); 1060 if (error) 1061 return (error); 1062 msg.msg_flags = uap->flags; 1063 uiov = msg.msg_iov; 1064 msg.msg_iov = iov; 1065 1066 controlp = (msg.msg_control != NULL) ? &control : NULL; 1067 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1068 if (error == 0) { 1069 msg.msg_iov = uiov; 1070 1071 if (control != NULL) 1072 error = freebsd32_copy_msg_out(&msg, control); 1073 1074 if (error == 0) 1075 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1076 } 1077 free(iov, M_IOV); 1078 1079 if (control != NULL) 1080 m_freem(control); 1081 1082 return (error); 1083} 1084 1085 1086static int 1087freebsd32_convert_msg_in(struct mbuf **controlp) 1088{ 1089 struct mbuf *control = *controlp; 1090 struct cmsghdr *cm = mtod(control, struct cmsghdr *); 1091 void *data; 1092 socklen_t clen = control->m_len, datalen; 1093 int error; 1094 1095 error = 0; 1096 *controlp = NULL; 1097 1098 while (cm != NULL) { 1099 if (sizeof(struct cmsghdr) > clen || cm->cmsg_len > clen) { 1100 error = EINVAL; 1101 break; 1102 } 1103 1104 data = FREEBSD32_CMSG_DATA(cm); 1105 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1106 1107 *controlp = sbcreatecontrol(data, datalen, cm->cmsg_type, 1108 cm->cmsg_level); 1109 controlp = &(*controlp)->m_next; 1110 1111 if (FREEBSD32_CMSG_SPACE(datalen) < clen) { 1112 clen -= FREEBSD32_CMSG_SPACE(datalen); 1113 cm = (struct cmsghdr *) 1114 ((caddr_t)cm + FREEBSD32_CMSG_SPACE(datalen)); 1115 } else { 1116 clen = 0; 1117 cm = NULL; 1118 } 1119 } 1120 1121 m_freem(control); 1122 return (error); 1123} 1124 1125 1126int 1127freebsd32_sendmsg(struct thread *td, 1128 struct freebsd32_sendmsg_args *uap) 1129{ 1130 struct msghdr msg; 1131 struct msghdr32 m32; 1132 struct iovec *iov; 1133 struct mbuf *control = NULL; 1134 struct sockaddr *to = NULL; 1135 int error; 1136 1137 error = copyin(uap->msg, &m32, sizeof(m32)); 1138 if (error) 1139 return (error); 1140 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1141 if (error) 1142 return (error); 1143 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1144 EMSGSIZE); 1145 if (error) 1146 return (error); 1147 msg.msg_iov = iov; 1148 if (msg.msg_name != NULL) { 1149 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1150 if (error) { 1151 to = NULL; 1152 goto out; 1153 } 1154 msg.msg_name = to; 1155 } 1156 1157 if (msg.msg_control) { 1158 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1159 error = EINVAL; 1160 goto out; 1161 } 1162 1163 error = sockargs(&control, msg.msg_control, 1164 msg.msg_controllen, MT_CONTROL); 1165 if (error) 1166 goto out; 1167 1168 error = freebsd32_convert_msg_in(&control); 1169 if (error) 1170 goto out; 1171 } 1172 1173 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1174 UIO_USERSPACE); 1175 1176out: 1177 free(iov, M_IOV); 1178 if (to) 1179 free(to, M_SONAME); 1180 return (error); 1181} 1182 1183int 1184freebsd32_recvfrom(struct thread *td, 1185 struct freebsd32_recvfrom_args *uap) 1186{ 1187 struct msghdr msg; 1188 struct iovec aiov; 1189 int error; 1190 1191 if (uap->fromlenaddr) { 1192 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1193 sizeof(msg.msg_namelen)); 1194 if (error) 1195 return (error); 1196 } else { 1197 msg.msg_namelen = 0; 1198 } 1199 1200 msg.msg_name = PTRIN(uap->from); 1201 msg.msg_iov = &aiov; 1202 msg.msg_iovlen = 1; 1203 aiov.iov_base = PTRIN(uap->buf); 1204 aiov.iov_len = uap->len; 1205 msg.msg_control = NULL; 1206 msg.msg_flags = uap->flags; 1207 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1208 if (error == 0 && uap->fromlenaddr) 1209 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1210 sizeof (msg.msg_namelen)); 1211 return (error); 1212} 1213 1214int 1215freebsd32_settimeofday(struct thread *td, 1216 struct freebsd32_settimeofday_args *uap) 1217{ 1218 struct timeval32 tv32; 1219 struct timeval tv, *tvp; 1220 struct timezone tz, *tzp; 1221 int error; 1222 1223 if (uap->tv) { 1224 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1225 if (error) 1226 return (error); 1227 CP(tv32, tv, tv_sec); 1228 CP(tv32, tv, tv_usec); 1229 tvp = &tv; 1230 } else 1231 tvp = NULL; 1232 if (uap->tzp) { 1233 error = copyin(uap->tzp, &tz, sizeof(tz)); 1234 if (error) 1235 return (error); 1236 tzp = &tz; 1237 } else 1238 tzp = NULL; 1239 return (kern_settimeofday(td, tvp, tzp)); 1240} 1241 1242int 1243freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1244{ 1245 struct timeval32 s32[2]; 1246 struct timeval s[2], *sp; 1247 int error; 1248 1249 if (uap->tptr != NULL) { 1250 error = copyin(uap->tptr, s32, sizeof(s32)); 1251 if (error) 1252 return (error); 1253 CP(s32[0], s[0], tv_sec); 1254 CP(s32[0], s[0], tv_usec); 1255 CP(s32[1], s[1], tv_sec); 1256 CP(s32[1], s[1], tv_usec); 1257 sp = s; 1258 } else 1259 sp = NULL; 1260 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1261} 1262 1263int 1264freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1265{ 1266 struct timeval32 s32[2]; 1267 struct timeval s[2], *sp; 1268 int error; 1269 1270 if (uap->tptr != NULL) { 1271 error = copyin(uap->tptr, s32, sizeof(s32)); 1272 if (error) 1273 return (error); 1274 CP(s32[0], s[0], tv_sec); 1275 CP(s32[0], s[0], tv_usec); 1276 CP(s32[1], s[1], tv_sec); 1277 CP(s32[1], s[1], tv_usec); 1278 sp = s; 1279 } else 1280 sp = NULL; 1281 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1282} 1283 1284int 1285freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1286{ 1287 struct timeval32 s32[2]; 1288 struct timeval s[2], *sp; 1289 int error; 1290 1291 if (uap->tptr != NULL) { 1292 error = copyin(uap->tptr, s32, sizeof(s32)); 1293 if (error) 1294 return (error); 1295 CP(s32[0], s[0], tv_sec); 1296 CP(s32[0], s[0], tv_usec); 1297 CP(s32[1], s[1], tv_sec); 1298 CP(s32[1], s[1], tv_usec); 1299 sp = s; 1300 } else 1301 sp = NULL; 1302 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1303} 1304 1305int 1306freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1307{ 1308 struct timeval32 s32[2]; 1309 struct timeval s[2], *sp; 1310 int error; 1311 1312 if (uap->times != NULL) { 1313 error = copyin(uap->times, s32, sizeof(s32)); 1314 if (error) 1315 return (error); 1316 CP(s32[0], s[0], tv_sec); 1317 CP(s32[0], s[0], tv_usec); 1318 CP(s32[1], s[1], tv_sec); 1319 CP(s32[1], s[1], tv_usec); 1320 sp = s; 1321 } else 1322 sp = NULL; 1323 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1324 sp, UIO_SYSSPACE)); 1325} 1326 1327int 1328freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1329{ 1330 struct timeval32 tv32; 1331 struct timeval delta, olddelta, *deltap; 1332 int error; 1333 1334 if (uap->delta) { 1335 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1336 if (error) 1337 return (error); 1338 CP(tv32, delta, tv_sec); 1339 CP(tv32, delta, tv_usec); 1340 deltap = δ 1341 } else 1342 deltap = NULL; 1343 error = kern_adjtime(td, deltap, &olddelta); 1344 if (uap->olddelta && error == 0) { 1345 CP(olddelta, tv32, tv_sec); 1346 CP(olddelta, tv32, tv_usec); 1347 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1348 } 1349 return (error); 1350} 1351 1352#ifdef COMPAT_FREEBSD4 1353int 1354freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1355{ 1356 struct statfs32 s32; 1357 struct statfs s; 1358 int error; 1359 1360 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1361 if (error) 1362 return (error); 1363 copy_statfs(&s, &s32); 1364 return (copyout(&s32, uap->buf, sizeof(s32))); 1365} 1366#endif 1367 1368#ifdef COMPAT_FREEBSD4 1369int 1370freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1371{ 1372 struct statfs32 s32; 1373 struct statfs s; 1374 int error; 1375 1376 error = kern_fstatfs(td, uap->fd, &s); 1377 if (error) 1378 return (error); 1379 copy_statfs(&s, &s32); 1380 return (copyout(&s32, uap->buf, sizeof(s32))); 1381} 1382#endif 1383 1384#ifdef COMPAT_FREEBSD4 1385int 1386freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1387{ 1388 struct statfs32 s32; 1389 struct statfs s; 1390 fhandle_t fh; 1391 int error; 1392 1393 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1394 return (error); 1395 error = kern_fhstatfs(td, fh, &s); 1396 if (error) 1397 return (error); 1398 copy_statfs(&s, &s32); 1399 return (copyout(&s32, uap->buf, sizeof(s32))); 1400} 1401#endif 1402 1403int 1404freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1405{ 1406 struct pread_args ap; 1407 1408 ap.fd = uap->fd; 1409 ap.buf = uap->buf; 1410 ap.nbyte = uap->nbyte; 1411 ap.offset = PAIR32TO64(off_t,uap->offset); 1412 return (pread(td, &ap)); 1413} 1414 1415int 1416freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1417{ 1418 struct pwrite_args ap; 1419 1420 ap.fd = uap->fd; 1421 ap.buf = uap->buf; 1422 ap.nbyte = uap->nbyte; 1423 ap.offset = PAIR32TO64(off_t,uap->offset); 1424 return (pwrite(td, &ap)); 1425} 1426 1427int 1428freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1429{ 1430 int error; 1431 struct lseek_args ap; 1432 off_t pos; 1433 1434 ap.fd = uap->fd; 1435 ap.offset = PAIR32TO64(off_t,uap->offset); 1436 ap.whence = uap->whence; 1437 error = lseek(td, &ap); 1438 /* Expand the quad return into two parts for eax and edx */ 1439 pos = *(off_t *)(td->td_retval); 1440 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1441 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1442 return error; 1443} 1444 1445int 1446freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1447{ 1448 struct truncate_args ap; 1449 1450 ap.path = uap->path; 1451 ap.length = PAIR32TO64(off_t,uap->length); 1452 return (truncate(td, &ap)); 1453} 1454 1455int 1456freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1457{ 1458 struct ftruncate_args ap; 1459 1460 ap.fd = uap->fd; 1461 ap.length = PAIR32TO64(off_t,uap->length); 1462 return (ftruncate(td, &ap)); 1463} 1464 1465int 1466freebsd32_getdirentries(struct thread *td, 1467 struct freebsd32_getdirentries_args *uap) 1468{ 1469 long base; 1470 int32_t base32; 1471 int error; 1472 1473 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base); 1474 if (error) 1475 return (error); 1476 if (uap->basep != NULL) { 1477 base32 = base; 1478 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1479 } 1480 return (error); 1481} 1482 1483#ifdef COMPAT_FREEBSD6 1484/* versions with the 'int pad' argument */ 1485int 1486freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1487{ 1488 struct pread_args ap; 1489 1490 ap.fd = uap->fd; 1491 ap.buf = uap->buf; 1492 ap.nbyte = uap->nbyte; 1493 ap.offset = PAIR32TO64(off_t,uap->offset); 1494 return (pread(td, &ap)); 1495} 1496 1497int 1498freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1499{ 1500 struct pwrite_args ap; 1501 1502 ap.fd = uap->fd; 1503 ap.buf = uap->buf; 1504 ap.nbyte = uap->nbyte; 1505 ap.offset = PAIR32TO64(off_t,uap->offset); 1506 return (pwrite(td, &ap)); 1507} 1508 1509int 1510freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1511{ 1512 int error; 1513 struct lseek_args ap; 1514 off_t pos; 1515 1516 ap.fd = uap->fd; 1517 ap.offset = PAIR32TO64(off_t,uap->offset); 1518 ap.whence = uap->whence; 1519 error = lseek(td, &ap); 1520 /* Expand the quad return into two parts for eax and edx */ 1521 pos = *(off_t *)(td->td_retval); 1522 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1523 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1524 return error; 1525} 1526 1527int 1528freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1529{ 1530 struct truncate_args ap; 1531 1532 ap.path = uap->path; 1533 ap.length = PAIR32TO64(off_t,uap->length); 1534 return (truncate(td, &ap)); 1535} 1536 1537int 1538freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1539{ 1540 struct ftruncate_args ap; 1541 1542 ap.fd = uap->fd; 1543 ap.length = PAIR32TO64(off_t,uap->length); 1544 return (ftruncate(td, &ap)); 1545} 1546#endif /* COMPAT_FREEBSD6 */ 1547 1548struct sf_hdtr32 { 1549 uint32_t headers; 1550 int hdr_cnt; 1551 uint32_t trailers; 1552 int trl_cnt; 1553}; 1554 1555static int 1556freebsd32_do_sendfile(struct thread *td, 1557 struct freebsd32_sendfile_args *uap, int compat) 1558{ 1559 struct sendfile_args ap; 1560 struct sf_hdtr32 hdtr32; 1561 struct sf_hdtr hdtr; 1562 struct uio *hdr_uio, *trl_uio; 1563 struct iovec32 *iov32; 1564 int error; 1565 1566 hdr_uio = trl_uio = NULL; 1567 1568 ap.fd = uap->fd; 1569 ap.s = uap->s; 1570 ap.offset = PAIR32TO64(off_t,uap->offset); 1571 ap.nbytes = uap->nbytes; 1572 ap.hdtr = (struct sf_hdtr *)uap->hdtr; /* XXX not used */ 1573 ap.sbytes = uap->sbytes; 1574 ap.flags = uap->flags; 1575 1576 if (uap->hdtr != NULL) { 1577 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1578 if (error) 1579 goto out; 1580 PTRIN_CP(hdtr32, hdtr, headers); 1581 CP(hdtr32, hdtr, hdr_cnt); 1582 PTRIN_CP(hdtr32, hdtr, trailers); 1583 CP(hdtr32, hdtr, trl_cnt); 1584 1585 if (hdtr.headers != NULL) { 1586 iov32 = PTRIN(hdtr32.headers); 1587 error = freebsd32_copyinuio(iov32, 1588 hdtr32.hdr_cnt, &hdr_uio); 1589 if (error) 1590 goto out; 1591 } 1592 if (hdtr.trailers != NULL) { 1593 iov32 = PTRIN(hdtr32.trailers); 1594 error = freebsd32_copyinuio(iov32, 1595 hdtr32.trl_cnt, &trl_uio); 1596 if (error) 1597 goto out; 1598 } 1599 } 1600 1601 error = kern_sendfile(td, &ap, hdr_uio, trl_uio, compat); 1602out: 1603 if (hdr_uio) 1604 free(hdr_uio, M_IOV); 1605 if (trl_uio) 1606 free(trl_uio, M_IOV); 1607 return (error); 1608} 1609 1610#ifdef COMPAT_FREEBSD4 1611int 1612freebsd4_freebsd32_sendfile(struct thread *td, 1613 struct freebsd4_freebsd32_sendfile_args *uap) 1614{ 1615 return (freebsd32_do_sendfile(td, 1616 (struct freebsd32_sendfile_args *)uap, 1)); 1617} 1618#endif 1619 1620int 1621freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1622{ 1623 1624 return (freebsd32_do_sendfile(td, uap, 0)); 1625} 1626 1627static void 1628copy_stat( struct stat *in, struct stat32 *out) 1629{ 1630 CP(*in, *out, st_dev); 1631 CP(*in, *out, st_ino); 1632 CP(*in, *out, st_mode); 1633 CP(*in, *out, st_nlink); 1634 CP(*in, *out, st_uid); 1635 CP(*in, *out, st_gid); 1636 CP(*in, *out, st_rdev); 1637 TS_CP(*in, *out, st_atim); 1638 TS_CP(*in, *out, st_mtim); 1639 TS_CP(*in, *out, st_ctim); 1640 CP(*in, *out, st_size); 1641 CP(*in, *out, st_blocks); 1642 CP(*in, *out, st_blksize); 1643 CP(*in, *out, st_flags); 1644 CP(*in, *out, st_gen); 1645} 1646 1647int 1648freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1649{ 1650 struct stat sb; 1651 struct stat32 sb32; 1652 int error; 1653 1654 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1655 if (error) 1656 return (error); 1657 copy_stat(&sb, &sb32); 1658 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1659 return (error); 1660} 1661 1662int 1663freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1664{ 1665 struct stat ub; 1666 struct stat32 ub32; 1667 int error; 1668 1669 error = kern_fstat(td, uap->fd, &ub); 1670 if (error) 1671 return (error); 1672 copy_stat(&ub, &ub32); 1673 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1674 return (error); 1675} 1676 1677int 1678freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1679{ 1680 struct stat ub; 1681 struct stat32 ub32; 1682 int error; 1683 1684 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1685 if (error) 1686 return (error); 1687 copy_stat(&ub, &ub32); 1688 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1689 return (error); 1690} 1691 1692int 1693freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1694{ 1695 struct stat sb; 1696 struct stat32 sb32; 1697 int error; 1698 1699 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1700 if (error) 1701 return (error); 1702 copy_stat(&sb, &sb32); 1703 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1704 return (error); 1705} 1706 1707/* 1708 * MPSAFE 1709 */ 1710int 1711freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1712{ 1713 int error, name[CTL_MAXNAME]; 1714 size_t j, oldlen; 1715 1716 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1717 return (EINVAL); 1718 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1719 if (error) 1720 return (error); 1721 if (uap->oldlenp) 1722 oldlen = fuword32(uap->oldlenp); 1723 else 1724 oldlen = 0; 1725 error = userland_sysctl(td, name, uap->namelen, 1726 uap->old, &oldlen, 1, 1727 uap->new, uap->newlen, &j, SCTL_MASK32); 1728 if (error && error != ENOMEM) 1729 return (error); 1730 if (uap->oldlenp) 1731 suword32(uap->oldlenp, j); 1732 return (0); 1733} 1734 1735int 1736freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1737{ 1738 uint32_t version; 1739 int error; 1740 struct jail j; 1741 1742 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1743 if (error) 1744 return (error); 1745 1746 switch (version) { 1747 case 0: 1748 { 1749 /* FreeBSD single IPv4 jails. */ 1750 struct jail32_v0 j32_v0; 1751 1752 bzero(&j, sizeof(struct jail)); 1753 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1754 if (error) 1755 return (error); 1756 CP(j32_v0, j, version); 1757 PTRIN_CP(j32_v0, j, path); 1758 PTRIN_CP(j32_v0, j, hostname); 1759 j.ip4s = j32_v0.ip_number; 1760 break; 1761 } 1762 1763 case 1: 1764 /* 1765 * Version 1 was used by multi-IPv4 jail implementations 1766 * that never made it into the official kernel. 1767 */ 1768 return (EINVAL); 1769 1770 case 2: /* JAIL_API_VERSION */ 1771 { 1772 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1773 struct jail32 j32; 1774 1775 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1776 if (error) 1777 return (error); 1778 CP(j32, j, version); 1779 PTRIN_CP(j32, j, path); 1780 PTRIN_CP(j32, j, hostname); 1781 PTRIN_CP(j32, j, jailname); 1782 CP(j32, j, ip4s); 1783 CP(j32, j, ip6s); 1784 PTRIN_CP(j32, j, ip4); 1785 PTRIN_CP(j32, j, ip6); 1786 break; 1787 } 1788 1789 default: 1790 /* Sci-Fi jails are not supported, sorry. */ 1791 return (EINVAL); 1792 } 1793 return (kern_jail(td, &j)); 1794} 1795 1796int 1797freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1798{ 1799 struct uio *auio; 1800 int error; 1801 1802 /* Check that we have an even number of iovecs. */ 1803 if (uap->iovcnt & 1) 1804 return (EINVAL); 1805 1806 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1807 if (error) 1808 return (error); 1809 error = kern_jail_set(td, auio, uap->flags); 1810 free(auio, M_IOV); 1811 return (error); 1812} 1813 1814int 1815freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1816{ 1817 struct iovec32 iov32; 1818 struct uio *auio; 1819 int error, i; 1820 1821 /* Check that we have an even number of iovecs. */ 1822 if (uap->iovcnt & 1) 1823 return (EINVAL); 1824 1825 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1826 if (error) 1827 return (error); 1828 error = kern_jail_get(td, auio, uap->flags); 1829 if (error == 0) 1830 for (i = 0; i < uap->iovcnt; i++) { 1831 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1832 CP(auio->uio_iov[i], iov32, iov_len); 1833 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1834 if (error != 0) 1835 break; 1836 } 1837 free(auio, M_IOV); 1838 return (error); 1839} 1840 1841int 1842freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1843{ 1844 struct sigaction32 s32; 1845 struct sigaction sa, osa, *sap; 1846 int error; 1847 1848 if (uap->act) { 1849 error = copyin(uap->act, &s32, sizeof(s32)); 1850 if (error) 1851 return (error); 1852 sa.sa_handler = PTRIN(s32.sa_u); 1853 CP(s32, sa, sa_flags); 1854 CP(s32, sa, sa_mask); 1855 sap = &sa; 1856 } else 1857 sap = NULL; 1858 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 1859 if (error == 0 && uap->oact != NULL) { 1860 s32.sa_u = PTROUT(osa.sa_handler); 1861 CP(osa, s32, sa_flags); 1862 CP(osa, s32, sa_mask); 1863 error = copyout(&s32, uap->oact, sizeof(s32)); 1864 } 1865 return (error); 1866} 1867 1868#ifdef COMPAT_FREEBSD4 1869int 1870freebsd4_freebsd32_sigaction(struct thread *td, 1871 struct freebsd4_freebsd32_sigaction_args *uap) 1872{ 1873 struct sigaction32 s32; 1874 struct sigaction sa, osa, *sap; 1875 int error; 1876 1877 if (uap->act) { 1878 error = copyin(uap->act, &s32, sizeof(s32)); 1879 if (error) 1880 return (error); 1881 sa.sa_handler = PTRIN(s32.sa_u); 1882 CP(s32, sa, sa_flags); 1883 CP(s32, sa, sa_mask); 1884 sap = &sa; 1885 } else 1886 sap = NULL; 1887 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 1888 if (error == 0 && uap->oact != NULL) { 1889 s32.sa_u = PTROUT(osa.sa_handler); 1890 CP(osa, s32, sa_flags); 1891 CP(osa, s32, sa_mask); 1892 error = copyout(&s32, uap->oact, sizeof(s32)); 1893 } 1894 return (error); 1895} 1896#endif 1897 1898#ifdef COMPAT_43 1899struct osigaction32 { 1900 u_int32_t sa_u; 1901 osigset_t sa_mask; 1902 int sa_flags; 1903}; 1904 1905#define ONSIG 32 1906 1907int 1908ofreebsd32_sigaction(struct thread *td, 1909 struct ofreebsd32_sigaction_args *uap) 1910{ 1911 struct osigaction32 s32; 1912 struct sigaction sa, osa, *sap; 1913 int error; 1914 1915 if (uap->signum <= 0 || uap->signum >= ONSIG) 1916 return (EINVAL); 1917 1918 if (uap->nsa) { 1919 error = copyin(uap->nsa, &s32, sizeof(s32)); 1920 if (error) 1921 return (error); 1922 sa.sa_handler = PTRIN(s32.sa_u); 1923 CP(s32, sa, sa_flags); 1924 OSIG2SIG(s32.sa_mask, sa.sa_mask); 1925 sap = &sa; 1926 } else 1927 sap = NULL; 1928 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 1929 if (error == 0 && uap->osa != NULL) { 1930 s32.sa_u = PTROUT(osa.sa_handler); 1931 CP(osa, s32, sa_flags); 1932 SIG2OSIG(osa.sa_mask, s32.sa_mask); 1933 error = copyout(&s32, uap->osa, sizeof(s32)); 1934 } 1935 return (error); 1936} 1937 1938int 1939ofreebsd32_sigprocmask(struct thread *td, 1940 struct ofreebsd32_sigprocmask_args *uap) 1941{ 1942 sigset_t set, oset; 1943 int error; 1944 1945 OSIG2SIG(uap->mask, set); 1946 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 1947 SIG2OSIG(oset, td->td_retval[0]); 1948 return (error); 1949} 1950 1951int 1952ofreebsd32_sigpending(struct thread *td, 1953 struct ofreebsd32_sigpending_args *uap) 1954{ 1955 struct proc *p = td->td_proc; 1956 sigset_t siglist; 1957 1958 PROC_LOCK(p); 1959 siglist = p->p_siglist; 1960 SIGSETOR(siglist, td->td_siglist); 1961 PROC_UNLOCK(p); 1962 SIG2OSIG(siglist, td->td_retval[0]); 1963 return (0); 1964} 1965 1966struct sigvec32 { 1967 u_int32_t sv_handler; 1968 int sv_mask; 1969 int sv_flags; 1970}; 1971 1972int 1973ofreebsd32_sigvec(struct thread *td, 1974 struct ofreebsd32_sigvec_args *uap) 1975{ 1976 struct sigvec32 vec; 1977 struct sigaction sa, osa, *sap; 1978 int error; 1979 1980 if (uap->signum <= 0 || uap->signum >= ONSIG) 1981 return (EINVAL); 1982 1983 if (uap->nsv) { 1984 error = copyin(uap->nsv, &vec, sizeof(vec)); 1985 if (error) 1986 return (error); 1987 sa.sa_handler = PTRIN(vec.sv_handler); 1988 OSIG2SIG(vec.sv_mask, sa.sa_mask); 1989 sa.sa_flags = vec.sv_flags; 1990 sa.sa_flags ^= SA_RESTART; 1991 sap = &sa; 1992 } else 1993 sap = NULL; 1994 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 1995 if (error == 0 && uap->osv != NULL) { 1996 vec.sv_handler = PTROUT(osa.sa_handler); 1997 SIG2OSIG(osa.sa_mask, vec.sv_mask); 1998 vec.sv_flags = osa.sa_flags; 1999 vec.sv_flags &= ~SA_NOCLDWAIT; 2000 vec.sv_flags ^= SA_RESTART; 2001 error = copyout(&vec, uap->osv, sizeof(vec)); 2002 } 2003 return (error); 2004} 2005 2006int 2007ofreebsd32_sigblock(struct thread *td, 2008 struct ofreebsd32_sigblock_args *uap) 2009{ 2010 sigset_t set, oset; 2011 2012 OSIG2SIG(uap->mask, set); 2013 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2014 SIG2OSIG(oset, td->td_retval[0]); 2015 return (0); 2016} 2017 2018int 2019ofreebsd32_sigsetmask(struct thread *td, 2020 struct ofreebsd32_sigsetmask_args *uap) 2021{ 2022 sigset_t set, oset; 2023 2024 OSIG2SIG(uap->mask, set); 2025 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2026 SIG2OSIG(oset, td->td_retval[0]); 2027 return (0); 2028} 2029 2030int 2031ofreebsd32_sigsuspend(struct thread *td, 2032 struct ofreebsd32_sigsuspend_args *uap) 2033{ 2034 sigset_t mask; 2035 2036 OSIG2SIG(uap->mask, mask); 2037 return (kern_sigsuspend(td, mask)); 2038} 2039 2040struct sigstack32 { 2041 u_int32_t ss_sp; 2042 int ss_onstack; 2043}; 2044 2045int 2046ofreebsd32_sigstack(struct thread *td, 2047 struct ofreebsd32_sigstack_args *uap) 2048{ 2049 struct sigstack32 s32; 2050 struct sigstack nss, oss; 2051 int error = 0, unss; 2052 2053 if (uap->nss != NULL) { 2054 error = copyin(uap->nss, &s32, sizeof(s32)); 2055 if (error) 2056 return (error); 2057 nss.ss_sp = PTRIN(s32.ss_sp); 2058 CP(s32, nss, ss_onstack); 2059 unss = 1; 2060 } else { 2061 unss = 0; 2062 } 2063 oss.ss_sp = td->td_sigstk.ss_sp; 2064 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2065 if (unss) { 2066 td->td_sigstk.ss_sp = nss.ss_sp; 2067 td->td_sigstk.ss_size = 0; 2068 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2069 td->td_pflags |= TDP_ALTSTACK; 2070 } 2071 if (uap->oss != NULL) { 2072 s32.ss_sp = PTROUT(oss.ss_sp); 2073 CP(oss, s32, ss_onstack); 2074 error = copyout(&s32, uap->oss, sizeof(s32)); 2075 } 2076 return (error); 2077} 2078#endif 2079 2080int 2081freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2082{ 2083 struct timespec32 rmt32, rqt32; 2084 struct timespec rmt, rqt; 2085 int error; 2086 2087 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2088 if (error) 2089 return (error); 2090 2091 CP(rqt32, rqt, tv_sec); 2092 CP(rqt32, rqt, tv_nsec); 2093 2094 if (uap->rmtp && 2095 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2096 return (EFAULT); 2097 error = kern_nanosleep(td, &rqt, &rmt); 2098 if (error && uap->rmtp) { 2099 int error2; 2100 2101 CP(rmt, rmt32, tv_sec); 2102 CP(rmt, rmt32, tv_nsec); 2103 2104 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2105 if (error2) 2106 error = error2; 2107 } 2108 return (error); 2109} 2110 2111int 2112freebsd32_clock_gettime(struct thread *td, 2113 struct freebsd32_clock_gettime_args *uap) 2114{ 2115 struct timespec ats; 2116 struct timespec32 ats32; 2117 int error; 2118 2119 error = kern_clock_gettime(td, uap->clock_id, &ats); 2120 if (error == 0) { 2121 CP(ats, ats32, tv_sec); 2122 CP(ats, ats32, tv_nsec); 2123 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2124 } 2125 return (error); 2126} 2127 2128int 2129freebsd32_clock_settime(struct thread *td, 2130 struct freebsd32_clock_settime_args *uap) 2131{ 2132 struct timespec ats; 2133 struct timespec32 ats32; 2134 int error; 2135 2136 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2137 if (error) 2138 return (error); 2139 CP(ats32, ats, tv_sec); 2140 CP(ats32, ats, tv_nsec); 2141 2142 return (kern_clock_settime(td, uap->clock_id, &ats)); 2143} 2144 2145int 2146freebsd32_clock_getres(struct thread *td, 2147 struct freebsd32_clock_getres_args *uap) 2148{ 2149 struct timespec ts; 2150 struct timespec32 ts32; 2151 int error; 2152 2153 if (uap->tp == NULL) 2154 return (0); 2155 error = kern_clock_getres(td, uap->clock_id, &ts); 2156 if (error == 0) { 2157 CP(ts, ts32, tv_sec); 2158 CP(ts, ts32, tv_nsec); 2159 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2160 } 2161 return (error); 2162} 2163 2164int 2165freebsd32_thr_new(struct thread *td, 2166 struct freebsd32_thr_new_args *uap) 2167{ 2168 struct thr_param32 param32; 2169 struct thr_param param; 2170 int error; 2171 2172 if (uap->param_size < 0 || 2173 uap->param_size > sizeof(struct thr_param32)) 2174 return (EINVAL); 2175 bzero(¶m, sizeof(struct thr_param)); 2176 bzero(¶m32, sizeof(struct thr_param32)); 2177 error = copyin(uap->param, ¶m32, uap->param_size); 2178 if (error != 0) 2179 return (error); 2180 param.start_func = PTRIN(param32.start_func); 2181 param.arg = PTRIN(param32.arg); 2182 param.stack_base = PTRIN(param32.stack_base); 2183 param.stack_size = param32.stack_size; 2184 param.tls_base = PTRIN(param32.tls_base); 2185 param.tls_size = param32.tls_size; 2186 param.child_tid = PTRIN(param32.child_tid); 2187 param.parent_tid = PTRIN(param32.parent_tid); 2188 param.flags = param32.flags; 2189 param.rtp = PTRIN(param32.rtp); 2190 param.spare[0] = PTRIN(param32.spare[0]); 2191 param.spare[1] = PTRIN(param32.spare[1]); 2192 param.spare[2] = PTRIN(param32.spare[2]); 2193 2194 return (kern_thr_new(td, ¶m)); 2195} 2196 2197int 2198freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2199{ 2200 struct timespec32 ts32; 2201 struct timespec ts, *tsp; 2202 int error; 2203 2204 error = 0; 2205 tsp = NULL; 2206 if (uap->timeout != NULL) { 2207 error = copyin((const void *)uap->timeout, (void *)&ts32, 2208 sizeof(struct timespec32)); 2209 if (error != 0) 2210 return (error); 2211 ts.tv_sec = ts32.tv_sec; 2212 ts.tv_nsec = ts32.tv_nsec; 2213 tsp = &ts; 2214 } 2215 return (kern_thr_suspend(td, tsp)); 2216} 2217 2218void 2219siginfo_to_siginfo32(siginfo_t *src, struct siginfo32 *dst) 2220{ 2221 bzero(dst, sizeof(*dst)); 2222 dst->si_signo = src->si_signo; 2223 dst->si_errno = src->si_errno; 2224 dst->si_code = src->si_code; 2225 dst->si_pid = src->si_pid; 2226 dst->si_uid = src->si_uid; 2227 dst->si_status = src->si_status; 2228 dst->si_addr = (uintptr_t)src->si_addr; 2229 dst->si_value.sigval_int = src->si_value.sival_int; 2230 dst->si_timerid = src->si_timerid; 2231 dst->si_overrun = src->si_overrun; 2232} 2233 2234int 2235freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2236{ 2237 struct timespec32 ts32; 2238 struct timespec ts; 2239 struct timespec *timeout; 2240 sigset_t set; 2241 ksiginfo_t ksi; 2242 struct siginfo32 si32; 2243 int error; 2244 2245 if (uap->timeout) { 2246 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2247 if (error) 2248 return (error); 2249 ts.tv_sec = ts32.tv_sec; 2250 ts.tv_nsec = ts32.tv_nsec; 2251 timeout = &ts; 2252 } else 2253 timeout = NULL; 2254 2255 error = copyin(uap->set, &set, sizeof(set)); 2256 if (error) 2257 return (error); 2258 2259 error = kern_sigtimedwait(td, set, &ksi, timeout); 2260 if (error) 2261 return (error); 2262 2263 if (uap->info) { 2264 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2265 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2266 } 2267 2268 if (error == 0) 2269 td->td_retval[0] = ksi.ksi_signo; 2270 return (error); 2271} 2272 2273/* 2274 * MPSAFE 2275 */ 2276int 2277freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2278{ 2279 ksiginfo_t ksi; 2280 struct siginfo32 si32; 2281 sigset_t set; 2282 int error; 2283 2284 error = copyin(uap->set, &set, sizeof(set)); 2285 if (error) 2286 return (error); 2287 2288 error = kern_sigtimedwait(td, set, &ksi, NULL); 2289 if (error) 2290 return (error); 2291 2292 if (uap->info) { 2293 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2294 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2295 } 2296 if (error == 0) 2297 td->td_retval[0] = ksi.ksi_signo; 2298 return (error); 2299} 2300 2301int 2302freebsd32_cpuset_setid(struct thread *td, 2303 struct freebsd32_cpuset_setid_args *uap) 2304{ 2305 struct cpuset_setid_args ap; 2306 2307 ap.which = uap->which; 2308 ap.id = PAIR32TO64(id_t,uap->id); 2309 ap.setid = uap->setid; 2310 2311 return (cpuset_setid(td, &ap)); 2312} 2313 2314int 2315freebsd32_cpuset_getid(struct thread *td, 2316 struct freebsd32_cpuset_getid_args *uap) 2317{ 2318 struct cpuset_getid_args ap; 2319 2320 ap.level = uap->level; 2321 ap.which = uap->which; 2322 ap.id = PAIR32TO64(id_t,uap->id); 2323 ap.setid = uap->setid; 2324 2325 return (cpuset_getid(td, &ap)); 2326} 2327 2328int 2329freebsd32_cpuset_getaffinity(struct thread *td, 2330 struct freebsd32_cpuset_getaffinity_args *uap) 2331{ 2332 struct cpuset_getaffinity_args ap; 2333 2334 ap.level = uap->level; 2335 ap.which = uap->which; 2336 ap.id = PAIR32TO64(id_t,uap->id); 2337 ap.cpusetsize = uap->cpusetsize; 2338 ap.mask = uap->mask; 2339 2340 return (cpuset_getaffinity(td, &ap)); 2341} 2342 2343int 2344freebsd32_cpuset_setaffinity(struct thread *td, 2345 struct freebsd32_cpuset_setaffinity_args *uap) 2346{ 2347 struct cpuset_setaffinity_args ap; 2348 2349 ap.level = uap->level; 2350 ap.which = uap->which; 2351 ap.id = PAIR32TO64(id_t,uap->id); 2352 ap.cpusetsize = uap->cpusetsize; 2353 ap.mask = uap->mask; 2354 2355 return (cpuset_setaffinity(td, &ap)); 2356} 2357 2358int 2359freebsd32_nmount(struct thread *td, 2360 struct freebsd32_nmount_args /* { 2361 struct iovec *iovp; 2362 unsigned int iovcnt; 2363 int flags; 2364 } */ *uap) 2365{ 2366 struct uio *auio; 2367 int error; 2368 2369 AUDIT_ARG_FFLAGS(uap->flags); 2370 2371 /* 2372 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2373 * userspace to set this flag, but we must filter it out if we want 2374 * MNT_UPDATE on the root file system to work. 2375 * MNT_ROOTFS should only be set in the kernel in vfs_mountroot_try(). 2376 */ 2377 uap->flags &= ~MNT_ROOTFS; 2378 2379 /* 2380 * check that we have an even number of iovec's 2381 * and that we have at least two options. 2382 */ 2383 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2384 return (EINVAL); 2385 2386 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2387 if (error) 2388 return (error); 2389 error = vfs_donmount(td, uap->flags, auio); 2390 2391 free(auio, M_IOV); 2392 return error; 2393} 2394 2395#if 0 2396int 2397freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2398{ 2399 struct yyy32 *p32, s32; 2400 struct yyy *p = NULL, s; 2401 struct xxx_arg ap; 2402 int error; 2403 2404 if (uap->zzz) { 2405 error = copyin(uap->zzz, &s32, sizeof(s32)); 2406 if (error) 2407 return (error); 2408 /* translate in */ 2409 p = &s; 2410 } 2411 error = kern_xxx(td, p); 2412 if (error) 2413 return (error); 2414 if (uap->zzz) { 2415 /* translate out */ 2416 error = copyout(&s32, p32, sizeof(s32)); 2417 } 2418 return (error); 2419} 2420#endif 2421 2422int 2423syscall32_register(int *offset, struct sysent *new_sysent, 2424 struct sysent *old_sysent) 2425{ 2426 if (*offset == NO_SYSCALL) { 2427 int i; 2428 2429 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2430 if (freebsd32_sysent[i].sy_call == 2431 (sy_call_t *)lkmnosys) 2432 break; 2433 if (i == SYS_MAXSYSCALL) 2434 return (ENFILE); 2435 *offset = i; 2436 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2437 return (EINVAL); 2438 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2439 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2440 return (EEXIST); 2441 2442 *old_sysent = freebsd32_sysent[*offset]; 2443 freebsd32_sysent[*offset] = *new_sysent; 2444 return 0; 2445} 2446 2447int 2448syscall32_deregister(int *offset, struct sysent *old_sysent) 2449{ 2450 2451 if (*offset) 2452 freebsd32_sysent[*offset] = *old_sysent; 2453 return 0; 2454} 2455 2456int 2457syscall32_module_handler(struct module *mod, int what, void *arg) 2458{ 2459 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2460 modspecific_t ms; 2461 int error; 2462 2463 switch (what) { 2464 case MOD_LOAD: 2465 error = syscall32_register(data->offset, data->new_sysent, 2466 &data->old_sysent); 2467 if (error) { 2468 /* Leave a mark so we know to safely unload below. */ 2469 data->offset = NULL; 2470 return error; 2471 } 2472 ms.intval = *data->offset; 2473 MOD_XLOCK; 2474 module_setspecific(mod, &ms); 2475 MOD_XUNLOCK; 2476 if (data->chainevh) 2477 error = data->chainevh(mod, what, data->chainarg); 2478 return (error); 2479 case MOD_UNLOAD: 2480 /* 2481 * MOD_LOAD failed, so just return without calling the 2482 * chained handler since we didn't pass along the MOD_LOAD 2483 * event. 2484 */ 2485 if (data->offset == NULL) 2486 return (0); 2487 if (data->chainevh) { 2488 error = data->chainevh(mod, what, data->chainarg); 2489 if (error) 2490 return (error); 2491 } 2492 error = syscall32_deregister(data->offset, &data->old_sysent); 2493 return (error); 2494 default: 2495 error = EOPNOTSUPP; 2496 if (data->chainevh) 2497 error = data->chainevh(mod, what, data->chainarg); 2498 return (error); 2499 } 2500} 2501 2502int 2503syscall32_helper_register(struct syscall_helper_data *sd) 2504{ 2505 struct syscall_helper_data *sd1; 2506 int error; 2507 2508 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2509 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2510 &sd1->old_sysent); 2511 if (error != 0) { 2512 syscall32_helper_unregister(sd); 2513 return (error); 2514 } 2515 sd1->registered = 1; 2516 } 2517 return (0); 2518} 2519 2520int 2521syscall32_helper_unregister(struct syscall_helper_data *sd) 2522{ 2523 struct syscall_helper_data *sd1; 2524 2525 for (sd1 = sd; sd1->registered != 0; sd1++) { 2526 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2527 sd1->registered = 0; 2528 } 2529 return (0); 2530} 2531 2532register_t * 2533freebsd32_copyout_strings(struct image_params *imgp) 2534{ 2535 int argc, envc; 2536 u_int32_t *vectp; 2537 char *stringp, *destp; 2538 u_int32_t *stack_base; 2539 struct freebsd32_ps_strings *arginfo; 2540 size_t execpath_len; 2541 int szsigcode; 2542 2543 /* 2544 * Calculate string base and vector table pointers. 2545 * Also deal with signal trampoline code for this exec type. 2546 */ 2547 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2548 execpath_len = strlen(imgp->execpath) + 1; 2549 else 2550 execpath_len = 0; 2551 arginfo = (struct freebsd32_ps_strings *)FREEBSD32_PS_STRINGS; 2552 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2553 destp = (caddr_t)arginfo - szsigcode - SPARE_USRSPACE - 2554 roundup(execpath_len, sizeof(char *)) - 2555 roundup((ARG_MAX - imgp->args->stringspace), sizeof(char *)); 2556 2557 /* 2558 * install sigcode 2559 */ 2560 if (szsigcode) 2561 copyout(imgp->proc->p_sysent->sv_sigcode, 2562 ((caddr_t)arginfo - szsigcode), szsigcode); 2563 2564 /* 2565 * Copy the image path for the rtld. 2566 */ 2567 if (execpath_len != 0) { 2568 imgp->execpathp = (uintptr_t)arginfo - szsigcode - execpath_len; 2569 copyout(imgp->execpath, (void *)imgp->execpathp, 2570 execpath_len); 2571 } 2572 2573 /* 2574 * If we have a valid auxargs ptr, prepare some room 2575 * on the stack. 2576 */ 2577 if (imgp->auxargs) { 2578 /* 2579 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2580 * lower compatibility. 2581 */ 2582 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2583 : (AT_COUNT * 2); 2584 /* 2585 * The '+ 2' is for the null pointers at the end of each of 2586 * the arg and env vector sets,and imgp->auxarg_size is room 2587 * for argument of Runtime loader. 2588 */ 2589 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2590 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2591 sizeof(u_int32_t)); 2592 } else 2593 /* 2594 * The '+ 2' is for the null pointers at the end of each of 2595 * the arg and env vector sets 2596 */ 2597 vectp = (u_int32_t *) 2598 (destp - (imgp->args->argc + imgp->args->envc + 2) * sizeof(u_int32_t)); 2599 2600 /* 2601 * vectp also becomes our initial stack base 2602 */ 2603 stack_base = vectp; 2604 2605 stringp = imgp->args->begin_argv; 2606 argc = imgp->args->argc; 2607 envc = imgp->args->envc; 2608 /* 2609 * Copy out strings - arguments and environment. 2610 */ 2611 copyout(stringp, destp, ARG_MAX - imgp->args->stringspace); 2612 2613 /* 2614 * Fill in "ps_strings" struct for ps, w, etc. 2615 */ 2616 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2617 suword32(&arginfo->ps_nargvstr, argc); 2618 2619 /* 2620 * Fill in argument portion of vector table. 2621 */ 2622 for (; argc > 0; --argc) { 2623 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2624 while (*stringp++ != 0) 2625 destp++; 2626 destp++; 2627 } 2628 2629 /* a null vector table pointer separates the argp's from the envp's */ 2630 suword32(vectp++, 0); 2631 2632 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2633 suword32(&arginfo->ps_nenvstr, envc); 2634 2635 /* 2636 * Fill in environment portion of vector table. 2637 */ 2638 for (; envc > 0; --envc) { 2639 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2640 while (*stringp++ != 0) 2641 destp++; 2642 destp++; 2643 } 2644 2645 /* end of vector table is a null pointer */ 2646 suword32(vectp, 0); 2647 2648 return ((register_t *)stack_base); 2649} 2650 2651