freebsd32_misc.c revision 282708
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 282708 2015-05-10 09:00:40Z 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/capsicum.h> 39#include <sys/clock.h> 40#include <sys/exec.h> 41#include <sys/fcntl.h> 42#include <sys/filedesc.h> 43#include <sys/imgact.h> 44#include <sys/jail.h> 45#include <sys/kernel.h> 46#include <sys/limits.h> 47#include <sys/linker.h> 48#include <sys/lock.h> 49#include <sys/malloc.h> 50#include <sys/file.h> /* Must come after sys/malloc.h */ 51#include <sys/imgact.h> 52#include <sys/mbuf.h> 53#include <sys/mman.h> 54#include <sys/module.h> 55#include <sys/mount.h> 56#include <sys/mutex.h> 57#include <sys/namei.h> 58#include <sys/proc.h> 59#include <sys/procctl.h> 60#include <sys/reboot.h> 61#include <sys/resource.h> 62#include <sys/resourcevar.h> 63#include <sys/selinfo.h> 64#include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 65#include <sys/pipe.h> /* Must come after sys/selinfo.h */ 66#include <sys/signal.h> 67#include <sys/signalvar.h> 68#include <sys/socket.h> 69#include <sys/socketvar.h> 70#include <sys/stat.h> 71#include <sys/syscall.h> 72#include <sys/syscallsubr.h> 73#include <sys/sysctl.h> 74#include <sys/sysent.h> 75#include <sys/sysproto.h> 76#include <sys/systm.h> 77#include <sys/thr.h> 78#include <sys/unistd.h> 79#include <sys/ucontext.h> 80#include <sys/vnode.h> 81#include <sys/wait.h> 82#include <sys/ipc.h> 83#include <sys/msg.h> 84#include <sys/sem.h> 85#include <sys/shm.h> 86 87#ifdef INET 88#include <netinet/in.h> 89#endif 90 91#include <vm/vm.h> 92#include <vm/vm_param.h> 93#include <vm/pmap.h> 94#include <vm/vm_map.h> 95#include <vm/vm_object.h> 96#include <vm/vm_extern.h> 97 98#include <machine/cpu.h> 99#include <machine/elf.h> 100 101#include <security/audit/audit.h> 102 103#include <compat/freebsd32/freebsd32_util.h> 104#include <compat/freebsd32/freebsd32.h> 105#include <compat/freebsd32/freebsd32_ipc.h> 106#include <compat/freebsd32/freebsd32_misc.h> 107#include <compat/freebsd32/freebsd32_signal.h> 108#include <compat/freebsd32/freebsd32_proto.h> 109 110FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD"); 111 112#ifndef __mips__ 113CTASSERT(sizeof(struct timeval32) == 8); 114CTASSERT(sizeof(struct timespec32) == 8); 115CTASSERT(sizeof(struct itimerval32) == 16); 116#endif 117CTASSERT(sizeof(struct statfs32) == 256); 118#ifndef __mips__ 119CTASSERT(sizeof(struct rusage32) == 72); 120#endif 121CTASSERT(sizeof(struct sigaltstack32) == 12); 122CTASSERT(sizeof(struct kevent32) == 20); 123CTASSERT(sizeof(struct iovec32) == 8); 124CTASSERT(sizeof(struct msghdr32) == 28); 125#ifndef __mips__ 126CTASSERT(sizeof(struct stat32) == 96); 127#endif 128CTASSERT(sizeof(struct sigaction32) == 24); 129 130static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 131static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 132 133void 134freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 135{ 136 137 TV_CP(*s, *s32, ru_utime); 138 TV_CP(*s, *s32, ru_stime); 139 CP(*s, *s32, ru_maxrss); 140 CP(*s, *s32, ru_ixrss); 141 CP(*s, *s32, ru_idrss); 142 CP(*s, *s32, ru_isrss); 143 CP(*s, *s32, ru_minflt); 144 CP(*s, *s32, ru_majflt); 145 CP(*s, *s32, ru_nswap); 146 CP(*s, *s32, ru_inblock); 147 CP(*s, *s32, ru_oublock); 148 CP(*s, *s32, ru_msgsnd); 149 CP(*s, *s32, ru_msgrcv); 150 CP(*s, *s32, ru_nsignals); 151 CP(*s, *s32, ru_nvcsw); 152 CP(*s, *s32, ru_nivcsw); 153} 154 155int 156freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 157{ 158 int error, status; 159 struct rusage32 ru32; 160 struct rusage ru, *rup; 161 162 if (uap->rusage != NULL) 163 rup = &ru; 164 else 165 rup = NULL; 166 error = kern_wait(td, uap->pid, &status, uap->options, rup); 167 if (error) 168 return (error); 169 if (uap->status != NULL) 170 error = copyout(&status, uap->status, sizeof(status)); 171 if (uap->rusage != NULL && error == 0) { 172 freebsd32_rusage_out(&ru, &ru32); 173 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 174 } 175 return (error); 176} 177 178int 179freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap) 180{ 181 struct wrusage32 wru32; 182 struct __wrusage wru, *wrup; 183 struct siginfo32 si32; 184 struct __siginfo si, *sip; 185 int error, status; 186 187 if (uap->wrusage != NULL) 188 wrup = &wru; 189 else 190 wrup = NULL; 191 if (uap->info != NULL) { 192 sip = &si; 193 bzero(sip, sizeof(*sip)); 194 } else 195 sip = NULL; 196 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id), 197 &status, uap->options, wrup, sip); 198 if (error != 0) 199 return (error); 200 if (uap->status != NULL) 201 error = copyout(&status, uap->status, sizeof(status)); 202 if (uap->wrusage != NULL && error == 0) { 203 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self); 204 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children); 205 error = copyout(&wru32, uap->wrusage, sizeof(wru32)); 206 } 207 if (uap->info != NULL && error == 0) { 208 siginfo_to_siginfo32 (&si, &si32); 209 error = copyout(&si32, uap->info, sizeof(si32)); 210 } 211 return (error); 212} 213 214#ifdef COMPAT_FREEBSD4 215static void 216copy_statfs(struct statfs *in, struct statfs32 *out) 217{ 218 219 statfs_scale_blocks(in, INT32_MAX); 220 bzero(out, sizeof(*out)); 221 CP(*in, *out, f_bsize); 222 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 223 CP(*in, *out, f_blocks); 224 CP(*in, *out, f_bfree); 225 CP(*in, *out, f_bavail); 226 out->f_files = MIN(in->f_files, INT32_MAX); 227 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 228 CP(*in, *out, f_fsid); 229 CP(*in, *out, f_owner); 230 CP(*in, *out, f_type); 231 CP(*in, *out, f_flags); 232 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 233 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 234 strlcpy(out->f_fstypename, 235 in->f_fstypename, MFSNAMELEN); 236 strlcpy(out->f_mntonname, 237 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 238 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 239 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 240 strlcpy(out->f_mntfromname, 241 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 242} 243#endif 244 245#ifdef COMPAT_FREEBSD4 246int 247freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 248{ 249 struct statfs *buf, *sp; 250 struct statfs32 stat32; 251 size_t count, size, copycount; 252 int error; 253 254 count = uap->bufsize / sizeof(struct statfs32); 255 size = count * sizeof(struct statfs); 256 error = kern_getfsstat(td, &buf, size, &count, UIO_SYSSPACE, uap->flags); 257 if (size > 0) { 258 sp = buf; 259 copycount = count; 260 while (copycount > 0 && error == 0) { 261 copy_statfs(sp, &stat32); 262 error = copyout(&stat32, uap->buf, sizeof(stat32)); 263 sp++; 264 uap->buf++; 265 copycount--; 266 } 267 free(buf, M_TEMP); 268 } 269 if (error == 0) 270 td->td_retval[0] = count; 271 return (error); 272} 273#endif 274 275int 276freebsd32_sigaltstack(struct thread *td, 277 struct freebsd32_sigaltstack_args *uap) 278{ 279 struct sigaltstack32 s32; 280 struct sigaltstack ss, oss, *ssp; 281 int error; 282 283 if (uap->ss != NULL) { 284 error = copyin(uap->ss, &s32, sizeof(s32)); 285 if (error) 286 return (error); 287 PTRIN_CP(s32, ss, ss_sp); 288 CP(s32, ss, ss_size); 289 CP(s32, ss, ss_flags); 290 ssp = &ss; 291 } else 292 ssp = NULL; 293 error = kern_sigaltstack(td, ssp, &oss); 294 if (error == 0 && uap->oss != NULL) { 295 PTROUT_CP(oss, s32, ss_sp); 296 CP(oss, s32, ss_size); 297 CP(oss, s32, ss_flags); 298 error = copyout(&s32, uap->oss, sizeof(s32)); 299 } 300 return (error); 301} 302 303/* 304 * Custom version of exec_copyin_args() so that we can translate 305 * the pointers. 306 */ 307int 308freebsd32_exec_copyin_args(struct image_args *args, char *fname, 309 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 310{ 311 char *argp, *envp; 312 u_int32_t *p32, arg; 313 size_t length; 314 int error; 315 316 bzero(args, sizeof(*args)); 317 if (argv == NULL) 318 return (EFAULT); 319 320 /* 321 * Allocate demand-paged memory for the file name, argument, and 322 * environment strings. 323 */ 324 error = exec_alloc_args(args); 325 if (error != 0) 326 return (error); 327 328 /* 329 * Copy the file name. 330 */ 331 if (fname != NULL) { 332 args->fname = args->buf; 333 error = (segflg == UIO_SYSSPACE) ? 334 copystr(fname, args->fname, PATH_MAX, &length) : 335 copyinstr(fname, args->fname, PATH_MAX, &length); 336 if (error != 0) 337 goto err_exit; 338 } else 339 length = 0; 340 341 args->begin_argv = args->buf + length; 342 args->endp = args->begin_argv; 343 args->stringspace = ARG_MAX; 344 345 /* 346 * extract arguments first 347 */ 348 p32 = argv; 349 for (;;) { 350 error = copyin(p32++, &arg, sizeof(arg)); 351 if (error) 352 goto err_exit; 353 if (arg == 0) 354 break; 355 argp = PTRIN(arg); 356 error = copyinstr(argp, args->endp, args->stringspace, &length); 357 if (error) { 358 if (error == ENAMETOOLONG) 359 error = E2BIG; 360 goto err_exit; 361 } 362 args->stringspace -= length; 363 args->endp += length; 364 args->argc++; 365 } 366 367 args->begin_envv = args->endp; 368 369 /* 370 * extract environment strings 371 */ 372 if (envv) { 373 p32 = envv; 374 for (;;) { 375 error = copyin(p32++, &arg, sizeof(arg)); 376 if (error) 377 goto err_exit; 378 if (arg == 0) 379 break; 380 envp = PTRIN(arg); 381 error = copyinstr(envp, args->endp, args->stringspace, 382 &length); 383 if (error) { 384 if (error == ENAMETOOLONG) 385 error = E2BIG; 386 goto err_exit; 387 } 388 args->stringspace -= length; 389 args->endp += length; 390 args->envc++; 391 } 392 } 393 394 return (0); 395 396err_exit: 397 exec_free_args(args); 398 return (error); 399} 400 401int 402freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 403{ 404 struct image_args eargs; 405 struct vmspace *oldvmspace; 406 int error; 407 408 error = pre_execve(td, &oldvmspace); 409 if (error != 0) 410 return (error); 411 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 412 uap->argv, uap->envv); 413 if (error == 0) 414 error = kern_execve(td, &eargs, NULL); 415 post_execve(td, error, oldvmspace); 416 return (error); 417} 418 419int 420freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 421{ 422 struct image_args eargs; 423 struct vmspace *oldvmspace; 424 int error; 425 426 error = pre_execve(td, &oldvmspace); 427 if (error != 0) 428 return (error); 429 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 430 uap->argv, uap->envv); 431 if (error == 0) { 432 eargs.fd = uap->fd; 433 error = kern_execve(td, &eargs, NULL); 434 } 435 post_execve(td, error, oldvmspace); 436 return (error); 437} 438 439int 440freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 441{ 442 struct mprotect_args ap; 443 444 ap.addr = PTRIN(uap->addr); 445 ap.len = uap->len; 446 ap.prot = uap->prot; 447#if defined(__amd64__) 448 if (i386_read_exec && (ap.prot & PROT_READ) != 0) 449 ap.prot |= PROT_EXEC; 450#endif 451 return (sys_mprotect(td, &ap)); 452} 453 454int 455freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 456{ 457 struct mmap_args ap; 458 vm_offset_t addr = (vm_offset_t) uap->addr; 459 vm_size_t len = uap->len; 460 int prot = uap->prot; 461 int flags = uap->flags; 462 int fd = uap->fd; 463 off_t pos = PAIR32TO64(off_t,uap->pos); 464 465#if defined(__amd64__) 466 if (i386_read_exec && (prot & PROT_READ)) 467 prot |= PROT_EXEC; 468#endif 469 470 ap.addr = (void *) addr; 471 ap.len = len; 472 ap.prot = prot; 473 ap.flags = flags; 474 ap.fd = fd; 475 ap.pos = pos; 476 477 return (sys_mmap(td, &ap)); 478} 479 480#ifdef COMPAT_FREEBSD6 481int 482freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 483{ 484 struct freebsd32_mmap_args ap; 485 486 ap.addr = uap->addr; 487 ap.len = uap->len; 488 ap.prot = uap->prot; 489 ap.flags = uap->flags; 490 ap.fd = uap->fd; 491 ap.pos1 = uap->pos1; 492 ap.pos2 = uap->pos2; 493 494 return (freebsd32_mmap(td, &ap)); 495} 496#endif 497 498int 499freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 500{ 501 struct itimerval itv, oitv, *itvp; 502 struct itimerval32 i32; 503 int error; 504 505 if (uap->itv != NULL) { 506 error = copyin(uap->itv, &i32, sizeof(i32)); 507 if (error) 508 return (error); 509 TV_CP(i32, itv, it_interval); 510 TV_CP(i32, itv, it_value); 511 itvp = &itv; 512 } else 513 itvp = NULL; 514 error = kern_setitimer(td, uap->which, itvp, &oitv); 515 if (error || uap->oitv == NULL) 516 return (error); 517 TV_CP(oitv, i32, it_interval); 518 TV_CP(oitv, i32, it_value); 519 return (copyout(&i32, uap->oitv, sizeof(i32))); 520} 521 522int 523freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 524{ 525 struct itimerval itv; 526 struct itimerval32 i32; 527 int error; 528 529 error = kern_getitimer(td, uap->which, &itv); 530 if (error || uap->itv == NULL) 531 return (error); 532 TV_CP(itv, i32, it_interval); 533 TV_CP(itv, i32, it_value); 534 return (copyout(&i32, uap->itv, sizeof(i32))); 535} 536 537int 538freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 539{ 540 struct timeval32 tv32; 541 struct timeval tv, *tvp; 542 int error; 543 544 if (uap->tv != NULL) { 545 error = copyin(uap->tv, &tv32, sizeof(tv32)); 546 if (error) 547 return (error); 548 CP(tv32, tv, tv_sec); 549 CP(tv32, tv, tv_usec); 550 tvp = &tv; 551 } else 552 tvp = NULL; 553 /* 554 * XXX Do pointers need PTRIN()? 555 */ 556 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 557 sizeof(int32_t) * 8)); 558} 559 560int 561freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 562{ 563 struct timespec32 ts32; 564 struct timespec ts; 565 struct timeval tv, *tvp; 566 sigset_t set, *uset; 567 int error; 568 569 if (uap->ts != NULL) { 570 error = copyin(uap->ts, &ts32, sizeof(ts32)); 571 if (error != 0) 572 return (error); 573 CP(ts32, ts, tv_sec); 574 CP(ts32, ts, tv_nsec); 575 TIMESPEC_TO_TIMEVAL(&tv, &ts); 576 tvp = &tv; 577 } else 578 tvp = NULL; 579 if (uap->sm != NULL) { 580 error = copyin(uap->sm, &set, sizeof(set)); 581 if (error != 0) 582 return (error); 583 uset = &set; 584 } else 585 uset = NULL; 586 /* 587 * XXX Do pointers need PTRIN()? 588 */ 589 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 590 uset, sizeof(int32_t) * 8); 591 return (error); 592} 593 594/* 595 * Copy 'count' items into the destination list pointed to by uap->eventlist. 596 */ 597static int 598freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 599{ 600 struct freebsd32_kevent_args *uap; 601 struct kevent32 ks32[KQ_NEVENTS]; 602 int i, error = 0; 603 604 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 605 uap = (struct freebsd32_kevent_args *)arg; 606 607 for (i = 0; i < count; i++) { 608 CP(kevp[i], ks32[i], ident); 609 CP(kevp[i], ks32[i], filter); 610 CP(kevp[i], ks32[i], flags); 611 CP(kevp[i], ks32[i], fflags); 612 CP(kevp[i], ks32[i], data); 613 PTROUT_CP(kevp[i], ks32[i], udata); 614 } 615 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 616 if (error == 0) 617 uap->eventlist += count; 618 return (error); 619} 620 621/* 622 * Copy 'count' items from the list pointed to by uap->changelist. 623 */ 624static int 625freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 626{ 627 struct freebsd32_kevent_args *uap; 628 struct kevent32 ks32[KQ_NEVENTS]; 629 int i, error = 0; 630 631 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 632 uap = (struct freebsd32_kevent_args *)arg; 633 634 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 635 if (error) 636 goto done; 637 uap->changelist += count; 638 639 for (i = 0; i < count; i++) { 640 CP(ks32[i], kevp[i], ident); 641 CP(ks32[i], kevp[i], filter); 642 CP(ks32[i], kevp[i], flags); 643 CP(ks32[i], kevp[i], fflags); 644 CP(ks32[i], kevp[i], data); 645 PTRIN_CP(ks32[i], kevp[i], udata); 646 } 647done: 648 return (error); 649} 650 651int 652freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 653{ 654 struct timespec32 ts32; 655 struct timespec ts, *tsp; 656 struct kevent_copyops k_ops = { uap, 657 freebsd32_kevent_copyout, 658 freebsd32_kevent_copyin}; 659 int error; 660 661 662 if (uap->timeout) { 663 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 664 if (error) 665 return (error); 666 CP(ts32, ts, tv_sec); 667 CP(ts32, ts, tv_nsec); 668 tsp = &ts; 669 } else 670 tsp = NULL; 671 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 672 &k_ops, tsp); 673 return (error); 674} 675 676int 677freebsd32_gettimeofday(struct thread *td, 678 struct freebsd32_gettimeofday_args *uap) 679{ 680 struct timeval atv; 681 struct timeval32 atv32; 682 struct timezone rtz; 683 int error = 0; 684 685 if (uap->tp) { 686 microtime(&atv); 687 CP(atv, atv32, tv_sec); 688 CP(atv, atv32, tv_usec); 689 error = copyout(&atv32, uap->tp, sizeof (atv32)); 690 } 691 if (error == 0 && uap->tzp != NULL) { 692 rtz.tz_minuteswest = tz_minuteswest; 693 rtz.tz_dsttime = tz_dsttime; 694 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 695 } 696 return (error); 697} 698 699int 700freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 701{ 702 struct rusage32 s32; 703 struct rusage s; 704 int error; 705 706 error = kern_getrusage(td, uap->who, &s); 707 if (error) 708 return (error); 709 if (uap->rusage != NULL) { 710 freebsd32_rusage_out(&s, &s32); 711 error = copyout(&s32, uap->rusage, sizeof(s32)); 712 } 713 return (error); 714} 715 716static int 717freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 718{ 719 struct iovec32 iov32; 720 struct iovec *iov; 721 struct uio *uio; 722 u_int iovlen; 723 int error, i; 724 725 *uiop = NULL; 726 if (iovcnt > UIO_MAXIOV) 727 return (EINVAL); 728 iovlen = iovcnt * sizeof(struct iovec); 729 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 730 iov = (struct iovec *)(uio + 1); 731 for (i = 0; i < iovcnt; i++) { 732 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 733 if (error) { 734 free(uio, M_IOV); 735 return (error); 736 } 737 iov[i].iov_base = PTRIN(iov32.iov_base); 738 iov[i].iov_len = iov32.iov_len; 739 } 740 uio->uio_iov = iov; 741 uio->uio_iovcnt = iovcnt; 742 uio->uio_segflg = UIO_USERSPACE; 743 uio->uio_offset = -1; 744 uio->uio_resid = 0; 745 for (i = 0; i < iovcnt; i++) { 746 if (iov->iov_len > INT_MAX - uio->uio_resid) { 747 free(uio, M_IOV); 748 return (EINVAL); 749 } 750 uio->uio_resid += iov->iov_len; 751 iov++; 752 } 753 *uiop = uio; 754 return (0); 755} 756 757int 758freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 759{ 760 struct uio *auio; 761 int error; 762 763 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 764 if (error) 765 return (error); 766 error = kern_readv(td, uap->fd, auio); 767 free(auio, M_IOV); 768 return (error); 769} 770 771int 772freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 773{ 774 struct uio *auio; 775 int error; 776 777 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 778 if (error) 779 return (error); 780 error = kern_writev(td, uap->fd, auio); 781 free(auio, M_IOV); 782 return (error); 783} 784 785int 786freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 787{ 788 struct uio *auio; 789 int error; 790 791 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 792 if (error) 793 return (error); 794 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 795 free(auio, M_IOV); 796 return (error); 797} 798 799int 800freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 801{ 802 struct uio *auio; 803 int error; 804 805 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 806 if (error) 807 return (error); 808 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 809 free(auio, M_IOV); 810 return (error); 811} 812 813int 814freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 815 int error) 816{ 817 struct iovec32 iov32; 818 struct iovec *iov; 819 u_int iovlen; 820 int i; 821 822 *iovp = NULL; 823 if (iovcnt > UIO_MAXIOV) 824 return (error); 825 iovlen = iovcnt * sizeof(struct iovec); 826 iov = malloc(iovlen, M_IOV, M_WAITOK); 827 for (i = 0; i < iovcnt; i++) { 828 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 829 if (error) { 830 free(iov, M_IOV); 831 return (error); 832 } 833 iov[i].iov_base = PTRIN(iov32.iov_base); 834 iov[i].iov_len = iov32.iov_len; 835 } 836 *iovp = iov; 837 return (0); 838} 839 840static int 841freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 842{ 843 struct msghdr32 m32; 844 int error; 845 846 error = copyin(msg32, &m32, sizeof(m32)); 847 if (error) 848 return (error); 849 msg->msg_name = PTRIN(m32.msg_name); 850 msg->msg_namelen = m32.msg_namelen; 851 msg->msg_iov = PTRIN(m32.msg_iov); 852 msg->msg_iovlen = m32.msg_iovlen; 853 msg->msg_control = PTRIN(m32.msg_control); 854 msg->msg_controllen = m32.msg_controllen; 855 msg->msg_flags = m32.msg_flags; 856 return (0); 857} 858 859static int 860freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 861{ 862 struct msghdr32 m32; 863 int error; 864 865 m32.msg_name = PTROUT(msg->msg_name); 866 m32.msg_namelen = msg->msg_namelen; 867 m32.msg_iov = PTROUT(msg->msg_iov); 868 m32.msg_iovlen = msg->msg_iovlen; 869 m32.msg_control = PTROUT(msg->msg_control); 870 m32.msg_controllen = msg->msg_controllen; 871 m32.msg_flags = msg->msg_flags; 872 error = copyout(&m32, msg32, sizeof(m32)); 873 return (error); 874} 875 876#ifndef __mips__ 877#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 878#else 879#define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 880#endif 881#define FREEBSD32_ALIGN(p) \ 882 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 883#define FREEBSD32_CMSG_SPACE(l) \ 884 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 885 886#define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 887 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 888static int 889freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 890{ 891 struct cmsghdr *cm; 892 void *data; 893 socklen_t clen, datalen; 894 int error; 895 caddr_t ctlbuf; 896 int len, maxlen, copylen; 897 struct mbuf *m; 898 error = 0; 899 900 len = msg->msg_controllen; 901 maxlen = msg->msg_controllen; 902 msg->msg_controllen = 0; 903 904 m = control; 905 ctlbuf = msg->msg_control; 906 907 while (m && len > 0) { 908 cm = mtod(m, struct cmsghdr *); 909 clen = m->m_len; 910 911 while (cm != NULL) { 912 913 if (sizeof(struct cmsghdr) > clen || 914 cm->cmsg_len > clen) { 915 error = EINVAL; 916 break; 917 } 918 919 data = CMSG_DATA(cm); 920 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 921 922 /* Adjust message length */ 923 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 924 datalen; 925 926 927 /* Copy cmsghdr */ 928 copylen = sizeof(struct cmsghdr); 929 if (len < copylen) { 930 msg->msg_flags |= MSG_CTRUNC; 931 copylen = len; 932 } 933 934 error = copyout(cm,ctlbuf,copylen); 935 if (error) 936 goto exit; 937 938 ctlbuf += FREEBSD32_ALIGN(copylen); 939 len -= FREEBSD32_ALIGN(copylen); 940 941 if (len <= 0) 942 break; 943 944 /* Copy data */ 945 copylen = datalen; 946 if (len < copylen) { 947 msg->msg_flags |= MSG_CTRUNC; 948 copylen = len; 949 } 950 951 error = copyout(data,ctlbuf,copylen); 952 if (error) 953 goto exit; 954 955 ctlbuf += FREEBSD32_ALIGN(copylen); 956 len -= FREEBSD32_ALIGN(copylen); 957 958 if (CMSG_SPACE(datalen) < clen) { 959 clen -= CMSG_SPACE(datalen); 960 cm = (struct cmsghdr *) 961 ((caddr_t)cm + CMSG_SPACE(datalen)); 962 } else { 963 clen = 0; 964 cm = NULL; 965 } 966 } 967 m = m->m_next; 968 } 969 970 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 971 972exit: 973 return (error); 974 975} 976 977int 978freebsd32_recvmsg(td, uap) 979 struct thread *td; 980 struct freebsd32_recvmsg_args /* { 981 int s; 982 struct msghdr32 *msg; 983 int flags; 984 } */ *uap; 985{ 986 struct msghdr msg; 987 struct msghdr32 m32; 988 struct iovec *uiov, *iov; 989 struct mbuf *control = NULL; 990 struct mbuf **controlp; 991 992 int error; 993 error = copyin(uap->msg, &m32, sizeof(m32)); 994 if (error) 995 return (error); 996 error = freebsd32_copyinmsghdr(uap->msg, &msg); 997 if (error) 998 return (error); 999 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1000 EMSGSIZE); 1001 if (error) 1002 return (error); 1003 msg.msg_flags = uap->flags; 1004 uiov = msg.msg_iov; 1005 msg.msg_iov = iov; 1006 1007 controlp = (msg.msg_control != NULL) ? &control : NULL; 1008 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1009 if (error == 0) { 1010 msg.msg_iov = uiov; 1011 1012 if (control != NULL) 1013 error = freebsd32_copy_msg_out(&msg, control); 1014 else 1015 msg.msg_controllen = 0; 1016 1017 if (error == 0) 1018 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1019 } 1020 free(iov, M_IOV); 1021 1022 if (control != NULL) 1023 m_freem(control); 1024 1025 return (error); 1026} 1027 1028/* 1029 * Copy-in the array of control messages constructed using alignment 1030 * and padding suitable for a 32-bit environment and construct an 1031 * mbuf using alignment and padding suitable for a 64-bit kernel. 1032 * The alignment and padding are defined indirectly by CMSG_DATA(), 1033 * CMSG_SPACE() and CMSG_LEN(). 1034 */ 1035static int 1036freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1037{ 1038 struct mbuf *m; 1039 void *md; 1040 u_int idx, len, msglen; 1041 int error; 1042 1043 buflen = FREEBSD32_ALIGN(buflen); 1044 1045 if (buflen > MCLBYTES) 1046 return (EINVAL); 1047 1048 /* 1049 * Iterate over the buffer and get the length of each message 1050 * in there. This has 32-bit alignment and padding. Use it to 1051 * determine the length of these messages when using 64-bit 1052 * alignment and padding. 1053 */ 1054 idx = 0; 1055 len = 0; 1056 while (idx < buflen) { 1057 error = copyin(buf + idx, &msglen, sizeof(msglen)); 1058 if (error) 1059 return (error); 1060 if (msglen < sizeof(struct cmsghdr)) 1061 return (EINVAL); 1062 msglen = FREEBSD32_ALIGN(msglen); 1063 if (idx + msglen > buflen) 1064 return (EINVAL); 1065 idx += msglen; 1066 msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) - 1067 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1068 len += CMSG_ALIGN(msglen); 1069 } 1070 1071 if (len > MCLBYTES) 1072 return (EINVAL); 1073 1074 m = m_get(M_WAITOK, MT_CONTROL); 1075 if (len > MLEN) 1076 MCLGET(m, M_WAITOK); 1077 m->m_len = len; 1078 1079 md = mtod(m, void *); 1080 while (buflen > 0) { 1081 error = copyin(buf, md, sizeof(struct cmsghdr)); 1082 if (error) 1083 break; 1084 msglen = *(u_int *)md; 1085 msglen = FREEBSD32_ALIGN(msglen); 1086 1087 /* Modify the message length to account for alignment. */ 1088 *(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) - 1089 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1090 1091 md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr)); 1092 buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1093 buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1094 1095 msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1096 if (msglen > 0) { 1097 error = copyin(buf, md, msglen); 1098 if (error) 1099 break; 1100 md = (char *)md + CMSG_ALIGN(msglen); 1101 buf += msglen; 1102 buflen -= msglen; 1103 } 1104 } 1105 1106 if (error) 1107 m_free(m); 1108 else 1109 *mp = m; 1110 return (error); 1111} 1112 1113int 1114freebsd32_sendmsg(struct thread *td, 1115 struct freebsd32_sendmsg_args *uap) 1116{ 1117 struct msghdr msg; 1118 struct msghdr32 m32; 1119 struct iovec *iov; 1120 struct mbuf *control = NULL; 1121 struct sockaddr *to = NULL; 1122 int error; 1123 1124 error = copyin(uap->msg, &m32, sizeof(m32)); 1125 if (error) 1126 return (error); 1127 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1128 if (error) 1129 return (error); 1130 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1131 EMSGSIZE); 1132 if (error) 1133 return (error); 1134 msg.msg_iov = iov; 1135 if (msg.msg_name != NULL) { 1136 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1137 if (error) { 1138 to = NULL; 1139 goto out; 1140 } 1141 msg.msg_name = to; 1142 } 1143 1144 if (msg.msg_control) { 1145 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1146 error = EINVAL; 1147 goto out; 1148 } 1149 1150 error = freebsd32_copyin_control(&control, msg.msg_control, 1151 msg.msg_controllen); 1152 if (error) 1153 goto out; 1154 1155 msg.msg_control = NULL; 1156 msg.msg_controllen = 0; 1157 } 1158 1159 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1160 UIO_USERSPACE); 1161 1162out: 1163 free(iov, M_IOV); 1164 if (to) 1165 free(to, M_SONAME); 1166 return (error); 1167} 1168 1169int 1170freebsd32_recvfrom(struct thread *td, 1171 struct freebsd32_recvfrom_args *uap) 1172{ 1173 struct msghdr msg; 1174 struct iovec aiov; 1175 int error; 1176 1177 if (uap->fromlenaddr) { 1178 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1179 sizeof(msg.msg_namelen)); 1180 if (error) 1181 return (error); 1182 } else { 1183 msg.msg_namelen = 0; 1184 } 1185 1186 msg.msg_name = PTRIN(uap->from); 1187 msg.msg_iov = &aiov; 1188 msg.msg_iovlen = 1; 1189 aiov.iov_base = PTRIN(uap->buf); 1190 aiov.iov_len = uap->len; 1191 msg.msg_control = NULL; 1192 msg.msg_flags = uap->flags; 1193 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1194 if (error == 0 && uap->fromlenaddr) 1195 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1196 sizeof (msg.msg_namelen)); 1197 return (error); 1198} 1199 1200int 1201freebsd32_settimeofday(struct thread *td, 1202 struct freebsd32_settimeofday_args *uap) 1203{ 1204 struct timeval32 tv32; 1205 struct timeval tv, *tvp; 1206 struct timezone tz, *tzp; 1207 int error; 1208 1209 if (uap->tv) { 1210 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1211 if (error) 1212 return (error); 1213 CP(tv32, tv, tv_sec); 1214 CP(tv32, tv, tv_usec); 1215 tvp = &tv; 1216 } else 1217 tvp = NULL; 1218 if (uap->tzp) { 1219 error = copyin(uap->tzp, &tz, sizeof(tz)); 1220 if (error) 1221 return (error); 1222 tzp = &tz; 1223 } else 1224 tzp = NULL; 1225 return (kern_settimeofday(td, tvp, tzp)); 1226} 1227 1228int 1229freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1230{ 1231 struct timeval32 s32[2]; 1232 struct timeval s[2], *sp; 1233 int error; 1234 1235 if (uap->tptr != NULL) { 1236 error = copyin(uap->tptr, s32, sizeof(s32)); 1237 if (error) 1238 return (error); 1239 CP(s32[0], s[0], tv_sec); 1240 CP(s32[0], s[0], tv_usec); 1241 CP(s32[1], s[1], tv_sec); 1242 CP(s32[1], s[1], tv_usec); 1243 sp = s; 1244 } else 1245 sp = NULL; 1246 return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE, 1247 sp, UIO_SYSSPACE)); 1248} 1249 1250int 1251freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1252{ 1253 struct timeval32 s32[2]; 1254 struct timeval s[2], *sp; 1255 int error; 1256 1257 if (uap->tptr != NULL) { 1258 error = copyin(uap->tptr, s32, sizeof(s32)); 1259 if (error) 1260 return (error); 1261 CP(s32[0], s[0], tv_sec); 1262 CP(s32[0], s[0], tv_usec); 1263 CP(s32[1], s[1], tv_sec); 1264 CP(s32[1], s[1], tv_usec); 1265 sp = s; 1266 } else 1267 sp = NULL; 1268 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1269} 1270 1271int 1272freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1273{ 1274 struct timeval32 s32[2]; 1275 struct timeval s[2], *sp; 1276 int error; 1277 1278 if (uap->tptr != NULL) { 1279 error = copyin(uap->tptr, s32, sizeof(s32)); 1280 if (error) 1281 return (error); 1282 CP(s32[0], s[0], tv_sec); 1283 CP(s32[0], s[0], tv_usec); 1284 CP(s32[1], s[1], tv_sec); 1285 CP(s32[1], s[1], tv_usec); 1286 sp = s; 1287 } else 1288 sp = NULL; 1289 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1290} 1291 1292int 1293freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1294{ 1295 struct timeval32 s32[2]; 1296 struct timeval s[2], *sp; 1297 int error; 1298 1299 if (uap->times != NULL) { 1300 error = copyin(uap->times, s32, sizeof(s32)); 1301 if (error) 1302 return (error); 1303 CP(s32[0], s[0], tv_sec); 1304 CP(s32[0], s[0], tv_usec); 1305 CP(s32[1], s[1], tv_sec); 1306 CP(s32[1], s[1], tv_usec); 1307 sp = s; 1308 } else 1309 sp = NULL; 1310 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1311 sp, UIO_SYSSPACE)); 1312} 1313 1314int 1315freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap) 1316{ 1317 struct timespec32 ts32[2]; 1318 struct timespec ts[2], *tsp; 1319 int error; 1320 1321 if (uap->times != NULL) { 1322 error = copyin(uap->times, ts32, sizeof(ts32)); 1323 if (error) 1324 return (error); 1325 CP(ts32[0], ts[0], tv_sec); 1326 CP(ts32[0], ts[0], tv_nsec); 1327 CP(ts32[1], ts[1], tv_sec); 1328 CP(ts32[1], ts[1], tv_nsec); 1329 tsp = ts; 1330 } else 1331 tsp = NULL; 1332 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE)); 1333} 1334 1335int 1336freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap) 1337{ 1338 struct timespec32 ts32[2]; 1339 struct timespec ts[2], *tsp; 1340 int error; 1341 1342 if (uap->times != NULL) { 1343 error = copyin(uap->times, ts32, sizeof(ts32)); 1344 if (error) 1345 return (error); 1346 CP(ts32[0], ts[0], tv_sec); 1347 CP(ts32[0], ts[0], tv_nsec); 1348 CP(ts32[1], ts[1], tv_sec); 1349 CP(ts32[1], ts[1], tv_nsec); 1350 tsp = ts; 1351 } else 1352 tsp = NULL; 1353 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE, 1354 tsp, UIO_SYSSPACE, uap->flag)); 1355} 1356 1357int 1358freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1359{ 1360 struct timeval32 tv32; 1361 struct timeval delta, olddelta, *deltap; 1362 int error; 1363 1364 if (uap->delta) { 1365 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1366 if (error) 1367 return (error); 1368 CP(tv32, delta, tv_sec); 1369 CP(tv32, delta, tv_usec); 1370 deltap = δ 1371 } else 1372 deltap = NULL; 1373 error = kern_adjtime(td, deltap, &olddelta); 1374 if (uap->olddelta && error == 0) { 1375 CP(olddelta, tv32, tv_sec); 1376 CP(olddelta, tv32, tv_usec); 1377 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1378 } 1379 return (error); 1380} 1381 1382#ifdef COMPAT_FREEBSD4 1383int 1384freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1385{ 1386 struct statfs32 s32; 1387 struct statfs s; 1388 int error; 1389 1390 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1391 if (error) 1392 return (error); 1393 copy_statfs(&s, &s32); 1394 return (copyout(&s32, uap->buf, sizeof(s32))); 1395} 1396#endif 1397 1398#ifdef COMPAT_FREEBSD4 1399int 1400freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1401{ 1402 struct statfs32 s32; 1403 struct statfs s; 1404 int error; 1405 1406 error = kern_fstatfs(td, uap->fd, &s); 1407 if (error) 1408 return (error); 1409 copy_statfs(&s, &s32); 1410 return (copyout(&s32, uap->buf, sizeof(s32))); 1411} 1412#endif 1413 1414#ifdef COMPAT_FREEBSD4 1415int 1416freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1417{ 1418 struct statfs32 s32; 1419 struct statfs s; 1420 fhandle_t fh; 1421 int error; 1422 1423 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1424 return (error); 1425 error = kern_fhstatfs(td, fh, &s); 1426 if (error) 1427 return (error); 1428 copy_statfs(&s, &s32); 1429 return (copyout(&s32, uap->buf, sizeof(s32))); 1430} 1431#endif 1432 1433int 1434freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1435{ 1436 struct pread_args ap; 1437 1438 ap.fd = uap->fd; 1439 ap.buf = uap->buf; 1440 ap.nbyte = uap->nbyte; 1441 ap.offset = PAIR32TO64(off_t,uap->offset); 1442 return (sys_pread(td, &ap)); 1443} 1444 1445int 1446freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1447{ 1448 struct pwrite_args ap; 1449 1450 ap.fd = uap->fd; 1451 ap.buf = uap->buf; 1452 ap.nbyte = uap->nbyte; 1453 ap.offset = PAIR32TO64(off_t,uap->offset); 1454 return (sys_pwrite(td, &ap)); 1455} 1456 1457#ifdef COMPAT_43 1458int 1459ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1460{ 1461 struct lseek_args nuap; 1462 1463 nuap.fd = uap->fd; 1464 nuap.offset = uap->offset; 1465 nuap.whence = uap->whence; 1466 return (sys_lseek(td, &nuap)); 1467} 1468#endif 1469 1470int 1471freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1472{ 1473 int error; 1474 struct lseek_args ap; 1475 off_t pos; 1476 1477 ap.fd = uap->fd; 1478 ap.offset = PAIR32TO64(off_t,uap->offset); 1479 ap.whence = uap->whence; 1480 error = sys_lseek(td, &ap); 1481 /* Expand the quad return into two parts for eax and edx */ 1482 pos = td->td_uretoff.tdu_off; 1483 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1484 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1485 return error; 1486} 1487 1488int 1489freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1490{ 1491 struct truncate_args ap; 1492 1493 ap.path = uap->path; 1494 ap.length = PAIR32TO64(off_t,uap->length); 1495 return (sys_truncate(td, &ap)); 1496} 1497 1498int 1499freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1500{ 1501 struct ftruncate_args ap; 1502 1503 ap.fd = uap->fd; 1504 ap.length = PAIR32TO64(off_t,uap->length); 1505 return (sys_ftruncate(td, &ap)); 1506} 1507 1508#ifdef COMPAT_43 1509int 1510ofreebsd32_getdirentries(struct thread *td, 1511 struct ofreebsd32_getdirentries_args *uap) 1512{ 1513 struct ogetdirentries_args ap; 1514 int error; 1515 long loff; 1516 int32_t loff_cut; 1517 1518 ap.fd = uap->fd; 1519 ap.buf = uap->buf; 1520 ap.count = uap->count; 1521 ap.basep = NULL; 1522 error = kern_ogetdirentries(td, &ap, &loff); 1523 if (error == 0) { 1524 loff_cut = loff; 1525 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1526 } 1527 return (error); 1528} 1529#endif 1530 1531int 1532freebsd32_getdirentries(struct thread *td, 1533 struct freebsd32_getdirentries_args *uap) 1534{ 1535 long base; 1536 int32_t base32; 1537 int error; 1538 1539 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1540 NULL, UIO_USERSPACE); 1541 if (error) 1542 return (error); 1543 if (uap->basep != NULL) { 1544 base32 = base; 1545 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1546 } 1547 return (error); 1548} 1549 1550#ifdef COMPAT_FREEBSD6 1551/* versions with the 'int pad' argument */ 1552int 1553freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1554{ 1555 struct pread_args ap; 1556 1557 ap.fd = uap->fd; 1558 ap.buf = uap->buf; 1559 ap.nbyte = uap->nbyte; 1560 ap.offset = PAIR32TO64(off_t,uap->offset); 1561 return (sys_pread(td, &ap)); 1562} 1563 1564int 1565freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1566{ 1567 struct pwrite_args ap; 1568 1569 ap.fd = uap->fd; 1570 ap.buf = uap->buf; 1571 ap.nbyte = uap->nbyte; 1572 ap.offset = PAIR32TO64(off_t,uap->offset); 1573 return (sys_pwrite(td, &ap)); 1574} 1575 1576int 1577freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1578{ 1579 int error; 1580 struct lseek_args ap; 1581 off_t pos; 1582 1583 ap.fd = uap->fd; 1584 ap.offset = PAIR32TO64(off_t,uap->offset); 1585 ap.whence = uap->whence; 1586 error = sys_lseek(td, &ap); 1587 /* Expand the quad return into two parts for eax and edx */ 1588 pos = *(off_t *)(td->td_retval); 1589 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1590 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1591 return error; 1592} 1593 1594int 1595freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1596{ 1597 struct truncate_args ap; 1598 1599 ap.path = uap->path; 1600 ap.length = PAIR32TO64(off_t,uap->length); 1601 return (sys_truncate(td, &ap)); 1602} 1603 1604int 1605freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1606{ 1607 struct ftruncate_args ap; 1608 1609 ap.fd = uap->fd; 1610 ap.length = PAIR32TO64(off_t,uap->length); 1611 return (sys_ftruncate(td, &ap)); 1612} 1613#endif /* COMPAT_FREEBSD6 */ 1614 1615struct sf_hdtr32 { 1616 uint32_t headers; 1617 int hdr_cnt; 1618 uint32_t trailers; 1619 int trl_cnt; 1620}; 1621 1622static int 1623freebsd32_do_sendfile(struct thread *td, 1624 struct freebsd32_sendfile_args *uap, int compat) 1625{ 1626 struct sf_hdtr32 hdtr32; 1627 struct sf_hdtr hdtr; 1628 struct uio *hdr_uio, *trl_uio; 1629 struct file *fp; 1630 cap_rights_t rights; 1631 struct iovec32 *iov32; 1632 off_t offset, sbytes; 1633 int error; 1634 1635 offset = PAIR32TO64(off_t, uap->offset); 1636 if (offset < 0) 1637 return (EINVAL); 1638 1639 hdr_uio = trl_uio = NULL; 1640 1641 if (uap->hdtr != NULL) { 1642 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1643 if (error) 1644 goto out; 1645 PTRIN_CP(hdtr32, hdtr, headers); 1646 CP(hdtr32, hdtr, hdr_cnt); 1647 PTRIN_CP(hdtr32, hdtr, trailers); 1648 CP(hdtr32, hdtr, trl_cnt); 1649 1650 if (hdtr.headers != NULL) { 1651 iov32 = PTRIN(hdtr32.headers); 1652 error = freebsd32_copyinuio(iov32, 1653 hdtr32.hdr_cnt, &hdr_uio); 1654 if (error) 1655 goto out; 1656 } 1657 if (hdtr.trailers != NULL) { 1658 iov32 = PTRIN(hdtr32.trailers); 1659 error = freebsd32_copyinuio(iov32, 1660 hdtr32.trl_cnt, &trl_uio); 1661 if (error) 1662 goto out; 1663 } 1664 } 1665 1666 AUDIT_ARG_FD(uap->fd); 1667 1668 if ((error = fget_read(td, uap->fd, 1669 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) 1670 goto out; 1671 1672 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1673 uap->nbytes, &sbytes, uap->flags, compat ? SFK_COMPAT : 0, td); 1674 fdrop(fp, td); 1675 1676 if (uap->sbytes != NULL) 1677 copyout(&sbytes, uap->sbytes, sizeof(off_t)); 1678 1679out: 1680 if (hdr_uio) 1681 free(hdr_uio, M_IOV); 1682 if (trl_uio) 1683 free(trl_uio, M_IOV); 1684 return (error); 1685} 1686 1687#ifdef COMPAT_FREEBSD4 1688int 1689freebsd4_freebsd32_sendfile(struct thread *td, 1690 struct freebsd4_freebsd32_sendfile_args *uap) 1691{ 1692 return (freebsd32_do_sendfile(td, 1693 (struct freebsd32_sendfile_args *)uap, 1)); 1694} 1695#endif 1696 1697int 1698freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1699{ 1700 1701 return (freebsd32_do_sendfile(td, uap, 0)); 1702} 1703 1704static void 1705copy_stat(struct stat *in, struct stat32 *out) 1706{ 1707 1708 CP(*in, *out, st_dev); 1709 CP(*in, *out, st_ino); 1710 CP(*in, *out, st_mode); 1711 CP(*in, *out, st_nlink); 1712 CP(*in, *out, st_uid); 1713 CP(*in, *out, st_gid); 1714 CP(*in, *out, st_rdev); 1715 TS_CP(*in, *out, st_atim); 1716 TS_CP(*in, *out, st_mtim); 1717 TS_CP(*in, *out, st_ctim); 1718 CP(*in, *out, st_size); 1719 CP(*in, *out, st_blocks); 1720 CP(*in, *out, st_blksize); 1721 CP(*in, *out, st_flags); 1722 CP(*in, *out, st_gen); 1723 TS_CP(*in, *out, st_birthtim); 1724} 1725 1726#ifdef COMPAT_43 1727static void 1728copy_ostat(struct stat *in, struct ostat32 *out) 1729{ 1730 1731 CP(*in, *out, st_dev); 1732 CP(*in, *out, st_ino); 1733 CP(*in, *out, st_mode); 1734 CP(*in, *out, st_nlink); 1735 CP(*in, *out, st_uid); 1736 CP(*in, *out, st_gid); 1737 CP(*in, *out, st_rdev); 1738 CP(*in, *out, st_size); 1739 TS_CP(*in, *out, st_atim); 1740 TS_CP(*in, *out, st_mtim); 1741 TS_CP(*in, *out, st_ctim); 1742 CP(*in, *out, st_blksize); 1743 CP(*in, *out, st_blocks); 1744 CP(*in, *out, st_flags); 1745 CP(*in, *out, st_gen); 1746} 1747#endif 1748 1749int 1750freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1751{ 1752 struct stat sb; 1753 struct stat32 sb32; 1754 int error; 1755 1756 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1757 &sb, NULL); 1758 if (error) 1759 return (error); 1760 copy_stat(&sb, &sb32); 1761 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1762 return (error); 1763} 1764 1765#ifdef COMPAT_43 1766int 1767ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1768{ 1769 struct stat sb; 1770 struct ostat32 sb32; 1771 int error; 1772 1773 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1774 &sb, NULL); 1775 if (error) 1776 return (error); 1777 copy_ostat(&sb, &sb32); 1778 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1779 return (error); 1780} 1781#endif 1782 1783int 1784freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1785{ 1786 struct stat ub; 1787 struct stat32 ub32; 1788 int error; 1789 1790 error = kern_fstat(td, uap->fd, &ub); 1791 if (error) 1792 return (error); 1793 copy_stat(&ub, &ub32); 1794 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1795 return (error); 1796} 1797 1798#ifdef COMPAT_43 1799int 1800ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1801{ 1802 struct stat ub; 1803 struct ostat32 ub32; 1804 int error; 1805 1806 error = kern_fstat(td, uap->fd, &ub); 1807 if (error) 1808 return (error); 1809 copy_ostat(&ub, &ub32); 1810 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1811 return (error); 1812} 1813#endif 1814 1815int 1816freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1817{ 1818 struct stat ub; 1819 struct stat32 ub32; 1820 int error; 1821 1822 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, 1823 &ub, NULL); 1824 if (error) 1825 return (error); 1826 copy_stat(&ub, &ub32); 1827 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1828 return (error); 1829} 1830 1831int 1832freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1833{ 1834 struct stat sb; 1835 struct stat32 sb32; 1836 int error; 1837 1838 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1839 UIO_USERSPACE, &sb, NULL); 1840 if (error) 1841 return (error); 1842 copy_stat(&sb, &sb32); 1843 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1844 return (error); 1845} 1846 1847#ifdef COMPAT_43 1848int 1849ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1850{ 1851 struct stat sb; 1852 struct ostat32 sb32; 1853 int error; 1854 1855 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1856 UIO_USERSPACE, &sb, NULL); 1857 if (error) 1858 return (error); 1859 copy_ostat(&sb, &sb32); 1860 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1861 return (error); 1862} 1863#endif 1864 1865int 1866freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1867{ 1868 int error, name[CTL_MAXNAME]; 1869 size_t j, oldlen; 1870 uint32_t tmp; 1871 1872 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1873 return (EINVAL); 1874 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1875 if (error) 1876 return (error); 1877 if (uap->oldlenp) { 1878 error = fueword32(uap->oldlenp, &tmp); 1879 oldlen = tmp; 1880 } else { 1881 oldlen = 0; 1882 } 1883 if (error != 0) 1884 return (EFAULT); 1885 error = userland_sysctl(td, name, uap->namelen, 1886 uap->old, &oldlen, 1, 1887 uap->new, uap->newlen, &j, SCTL_MASK32); 1888 if (error && error != ENOMEM) 1889 return (error); 1890 if (uap->oldlenp) 1891 suword32(uap->oldlenp, j); 1892 return (0); 1893} 1894 1895int 1896freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1897{ 1898 uint32_t version; 1899 int error; 1900 struct jail j; 1901 1902 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1903 if (error) 1904 return (error); 1905 1906 switch (version) { 1907 case 0: 1908 { 1909 /* FreeBSD single IPv4 jails. */ 1910 struct jail32_v0 j32_v0; 1911 1912 bzero(&j, sizeof(struct jail)); 1913 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1914 if (error) 1915 return (error); 1916 CP(j32_v0, j, version); 1917 PTRIN_CP(j32_v0, j, path); 1918 PTRIN_CP(j32_v0, j, hostname); 1919 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1920 break; 1921 } 1922 1923 case 1: 1924 /* 1925 * Version 1 was used by multi-IPv4 jail implementations 1926 * that never made it into the official kernel. 1927 */ 1928 return (EINVAL); 1929 1930 case 2: /* JAIL_API_VERSION */ 1931 { 1932 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1933 struct jail32 j32; 1934 1935 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1936 if (error) 1937 return (error); 1938 CP(j32, j, version); 1939 PTRIN_CP(j32, j, path); 1940 PTRIN_CP(j32, j, hostname); 1941 PTRIN_CP(j32, j, jailname); 1942 CP(j32, j, ip4s); 1943 CP(j32, j, ip6s); 1944 PTRIN_CP(j32, j, ip4); 1945 PTRIN_CP(j32, j, ip6); 1946 break; 1947 } 1948 1949 default: 1950 /* Sci-Fi jails are not supported, sorry. */ 1951 return (EINVAL); 1952 } 1953 return (kern_jail(td, &j)); 1954} 1955 1956int 1957freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1958{ 1959 struct uio *auio; 1960 int error; 1961 1962 /* Check that we have an even number of iovecs. */ 1963 if (uap->iovcnt & 1) 1964 return (EINVAL); 1965 1966 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1967 if (error) 1968 return (error); 1969 error = kern_jail_set(td, auio, uap->flags); 1970 free(auio, M_IOV); 1971 return (error); 1972} 1973 1974int 1975freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1976{ 1977 struct iovec32 iov32; 1978 struct uio *auio; 1979 int error, i; 1980 1981 /* Check that we have an even number of iovecs. */ 1982 if (uap->iovcnt & 1) 1983 return (EINVAL); 1984 1985 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1986 if (error) 1987 return (error); 1988 error = kern_jail_get(td, auio, uap->flags); 1989 if (error == 0) 1990 for (i = 0; i < uap->iovcnt; i++) { 1991 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1992 CP(auio->uio_iov[i], iov32, iov_len); 1993 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1994 if (error != 0) 1995 break; 1996 } 1997 free(auio, M_IOV); 1998 return (error); 1999} 2000 2001int 2002freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2003{ 2004 struct sigaction32 s32; 2005 struct sigaction sa, osa, *sap; 2006 int error; 2007 2008 if (uap->act) { 2009 error = copyin(uap->act, &s32, sizeof(s32)); 2010 if (error) 2011 return (error); 2012 sa.sa_handler = PTRIN(s32.sa_u); 2013 CP(s32, sa, sa_flags); 2014 CP(s32, sa, sa_mask); 2015 sap = &sa; 2016 } else 2017 sap = NULL; 2018 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2019 if (error == 0 && uap->oact != NULL) { 2020 s32.sa_u = PTROUT(osa.sa_handler); 2021 CP(osa, s32, sa_flags); 2022 CP(osa, s32, sa_mask); 2023 error = copyout(&s32, uap->oact, sizeof(s32)); 2024 } 2025 return (error); 2026} 2027 2028#ifdef COMPAT_FREEBSD4 2029int 2030freebsd4_freebsd32_sigaction(struct thread *td, 2031 struct freebsd4_freebsd32_sigaction_args *uap) 2032{ 2033 struct sigaction32 s32; 2034 struct sigaction sa, osa, *sap; 2035 int error; 2036 2037 if (uap->act) { 2038 error = copyin(uap->act, &s32, sizeof(s32)); 2039 if (error) 2040 return (error); 2041 sa.sa_handler = PTRIN(s32.sa_u); 2042 CP(s32, sa, sa_flags); 2043 CP(s32, sa, sa_mask); 2044 sap = &sa; 2045 } else 2046 sap = NULL; 2047 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2048 if (error == 0 && uap->oact != NULL) { 2049 s32.sa_u = PTROUT(osa.sa_handler); 2050 CP(osa, s32, sa_flags); 2051 CP(osa, s32, sa_mask); 2052 error = copyout(&s32, uap->oact, sizeof(s32)); 2053 } 2054 return (error); 2055} 2056#endif 2057 2058#ifdef COMPAT_43 2059struct osigaction32 { 2060 u_int32_t sa_u; 2061 osigset_t sa_mask; 2062 int sa_flags; 2063}; 2064 2065#define ONSIG 32 2066 2067int 2068ofreebsd32_sigaction(struct thread *td, 2069 struct ofreebsd32_sigaction_args *uap) 2070{ 2071 struct osigaction32 s32; 2072 struct sigaction sa, osa, *sap; 2073 int error; 2074 2075 if (uap->signum <= 0 || uap->signum >= ONSIG) 2076 return (EINVAL); 2077 2078 if (uap->nsa) { 2079 error = copyin(uap->nsa, &s32, sizeof(s32)); 2080 if (error) 2081 return (error); 2082 sa.sa_handler = PTRIN(s32.sa_u); 2083 CP(s32, sa, sa_flags); 2084 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2085 sap = &sa; 2086 } else 2087 sap = NULL; 2088 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2089 if (error == 0 && uap->osa != NULL) { 2090 s32.sa_u = PTROUT(osa.sa_handler); 2091 CP(osa, s32, sa_flags); 2092 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2093 error = copyout(&s32, uap->osa, sizeof(s32)); 2094 } 2095 return (error); 2096} 2097 2098int 2099ofreebsd32_sigprocmask(struct thread *td, 2100 struct ofreebsd32_sigprocmask_args *uap) 2101{ 2102 sigset_t set, oset; 2103 int error; 2104 2105 OSIG2SIG(uap->mask, set); 2106 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2107 SIG2OSIG(oset, td->td_retval[0]); 2108 return (error); 2109} 2110 2111int 2112ofreebsd32_sigpending(struct thread *td, 2113 struct ofreebsd32_sigpending_args *uap) 2114{ 2115 struct proc *p = td->td_proc; 2116 sigset_t siglist; 2117 2118 PROC_LOCK(p); 2119 siglist = p->p_siglist; 2120 SIGSETOR(siglist, td->td_siglist); 2121 PROC_UNLOCK(p); 2122 SIG2OSIG(siglist, td->td_retval[0]); 2123 return (0); 2124} 2125 2126struct sigvec32 { 2127 u_int32_t sv_handler; 2128 int sv_mask; 2129 int sv_flags; 2130}; 2131 2132int 2133ofreebsd32_sigvec(struct thread *td, 2134 struct ofreebsd32_sigvec_args *uap) 2135{ 2136 struct sigvec32 vec; 2137 struct sigaction sa, osa, *sap; 2138 int error; 2139 2140 if (uap->signum <= 0 || uap->signum >= ONSIG) 2141 return (EINVAL); 2142 2143 if (uap->nsv) { 2144 error = copyin(uap->nsv, &vec, sizeof(vec)); 2145 if (error) 2146 return (error); 2147 sa.sa_handler = PTRIN(vec.sv_handler); 2148 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2149 sa.sa_flags = vec.sv_flags; 2150 sa.sa_flags ^= SA_RESTART; 2151 sap = &sa; 2152 } else 2153 sap = NULL; 2154 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2155 if (error == 0 && uap->osv != NULL) { 2156 vec.sv_handler = PTROUT(osa.sa_handler); 2157 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2158 vec.sv_flags = osa.sa_flags; 2159 vec.sv_flags &= ~SA_NOCLDWAIT; 2160 vec.sv_flags ^= SA_RESTART; 2161 error = copyout(&vec, uap->osv, sizeof(vec)); 2162 } 2163 return (error); 2164} 2165 2166int 2167ofreebsd32_sigblock(struct thread *td, 2168 struct ofreebsd32_sigblock_args *uap) 2169{ 2170 sigset_t set, oset; 2171 2172 OSIG2SIG(uap->mask, set); 2173 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2174 SIG2OSIG(oset, td->td_retval[0]); 2175 return (0); 2176} 2177 2178int 2179ofreebsd32_sigsetmask(struct thread *td, 2180 struct ofreebsd32_sigsetmask_args *uap) 2181{ 2182 sigset_t set, oset; 2183 2184 OSIG2SIG(uap->mask, set); 2185 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2186 SIG2OSIG(oset, td->td_retval[0]); 2187 return (0); 2188} 2189 2190int 2191ofreebsd32_sigsuspend(struct thread *td, 2192 struct ofreebsd32_sigsuspend_args *uap) 2193{ 2194 sigset_t mask; 2195 2196 OSIG2SIG(uap->mask, mask); 2197 return (kern_sigsuspend(td, mask)); 2198} 2199 2200struct sigstack32 { 2201 u_int32_t ss_sp; 2202 int ss_onstack; 2203}; 2204 2205int 2206ofreebsd32_sigstack(struct thread *td, 2207 struct ofreebsd32_sigstack_args *uap) 2208{ 2209 struct sigstack32 s32; 2210 struct sigstack nss, oss; 2211 int error = 0, unss; 2212 2213 if (uap->nss != NULL) { 2214 error = copyin(uap->nss, &s32, sizeof(s32)); 2215 if (error) 2216 return (error); 2217 nss.ss_sp = PTRIN(s32.ss_sp); 2218 CP(s32, nss, ss_onstack); 2219 unss = 1; 2220 } else { 2221 unss = 0; 2222 } 2223 oss.ss_sp = td->td_sigstk.ss_sp; 2224 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2225 if (unss) { 2226 td->td_sigstk.ss_sp = nss.ss_sp; 2227 td->td_sigstk.ss_size = 0; 2228 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2229 td->td_pflags |= TDP_ALTSTACK; 2230 } 2231 if (uap->oss != NULL) { 2232 s32.ss_sp = PTROUT(oss.ss_sp); 2233 CP(oss, s32, ss_onstack); 2234 error = copyout(&s32, uap->oss, sizeof(s32)); 2235 } 2236 return (error); 2237} 2238#endif 2239 2240int 2241freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2242{ 2243 struct timespec32 rmt32, rqt32; 2244 struct timespec rmt, rqt; 2245 int error; 2246 2247 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2248 if (error) 2249 return (error); 2250 2251 CP(rqt32, rqt, tv_sec); 2252 CP(rqt32, rqt, tv_nsec); 2253 2254 if (uap->rmtp && 2255 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2256 return (EFAULT); 2257 error = kern_nanosleep(td, &rqt, &rmt); 2258 if (error && uap->rmtp) { 2259 int error2; 2260 2261 CP(rmt, rmt32, tv_sec); 2262 CP(rmt, rmt32, tv_nsec); 2263 2264 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2265 if (error2) 2266 error = error2; 2267 } 2268 return (error); 2269} 2270 2271int 2272freebsd32_clock_gettime(struct thread *td, 2273 struct freebsd32_clock_gettime_args *uap) 2274{ 2275 struct timespec ats; 2276 struct timespec32 ats32; 2277 int error; 2278 2279 error = kern_clock_gettime(td, uap->clock_id, &ats); 2280 if (error == 0) { 2281 CP(ats, ats32, tv_sec); 2282 CP(ats, ats32, tv_nsec); 2283 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2284 } 2285 return (error); 2286} 2287 2288int 2289freebsd32_clock_settime(struct thread *td, 2290 struct freebsd32_clock_settime_args *uap) 2291{ 2292 struct timespec ats; 2293 struct timespec32 ats32; 2294 int error; 2295 2296 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2297 if (error) 2298 return (error); 2299 CP(ats32, ats, tv_sec); 2300 CP(ats32, ats, tv_nsec); 2301 2302 return (kern_clock_settime(td, uap->clock_id, &ats)); 2303} 2304 2305int 2306freebsd32_clock_getres(struct thread *td, 2307 struct freebsd32_clock_getres_args *uap) 2308{ 2309 struct timespec ts; 2310 struct timespec32 ts32; 2311 int error; 2312 2313 if (uap->tp == NULL) 2314 return (0); 2315 error = kern_clock_getres(td, uap->clock_id, &ts); 2316 if (error == 0) { 2317 CP(ts, ts32, tv_sec); 2318 CP(ts, ts32, tv_nsec); 2319 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2320 } 2321 return (error); 2322} 2323 2324int freebsd32_ktimer_create(struct thread *td, 2325 struct freebsd32_ktimer_create_args *uap) 2326{ 2327 struct sigevent32 ev32; 2328 struct sigevent ev, *evp; 2329 int error, id; 2330 2331 if (uap->evp == NULL) { 2332 evp = NULL; 2333 } else { 2334 evp = &ev; 2335 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2336 if (error != 0) 2337 return (error); 2338 error = convert_sigevent32(&ev32, &ev); 2339 if (error != 0) 2340 return (error); 2341 } 2342 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2343 if (error == 0) { 2344 error = copyout(&id, uap->timerid, sizeof(int)); 2345 if (error != 0) 2346 kern_ktimer_delete(td, id); 2347 } 2348 return (error); 2349} 2350 2351int 2352freebsd32_ktimer_settime(struct thread *td, 2353 struct freebsd32_ktimer_settime_args *uap) 2354{ 2355 struct itimerspec32 val32, oval32; 2356 struct itimerspec val, oval, *ovalp; 2357 int error; 2358 2359 error = copyin(uap->value, &val32, sizeof(val32)); 2360 if (error != 0) 2361 return (error); 2362 ITS_CP(val32, val); 2363 ovalp = uap->ovalue != NULL ? &oval : NULL; 2364 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2365 if (error == 0 && uap->ovalue != NULL) { 2366 ITS_CP(oval, oval32); 2367 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2368 } 2369 return (error); 2370} 2371 2372int 2373freebsd32_ktimer_gettime(struct thread *td, 2374 struct freebsd32_ktimer_gettime_args *uap) 2375{ 2376 struct itimerspec32 val32; 2377 struct itimerspec val; 2378 int error; 2379 2380 error = kern_ktimer_gettime(td, uap->timerid, &val); 2381 if (error == 0) { 2382 ITS_CP(val, val32); 2383 error = copyout(&val32, uap->value, sizeof(val32)); 2384 } 2385 return (error); 2386} 2387 2388int 2389freebsd32_clock_getcpuclockid2(struct thread *td, 2390 struct freebsd32_clock_getcpuclockid2_args *uap) 2391{ 2392 clockid_t clk_id; 2393 int error; 2394 2395 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2396 uap->which, &clk_id); 2397 if (error == 0) 2398 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2399 return (error); 2400} 2401 2402int 2403freebsd32_thr_new(struct thread *td, 2404 struct freebsd32_thr_new_args *uap) 2405{ 2406 struct thr_param32 param32; 2407 struct thr_param param; 2408 int error; 2409 2410 if (uap->param_size < 0 || 2411 uap->param_size > sizeof(struct thr_param32)) 2412 return (EINVAL); 2413 bzero(¶m, sizeof(struct thr_param)); 2414 bzero(¶m32, sizeof(struct thr_param32)); 2415 error = copyin(uap->param, ¶m32, uap->param_size); 2416 if (error != 0) 2417 return (error); 2418 param.start_func = PTRIN(param32.start_func); 2419 param.arg = PTRIN(param32.arg); 2420 param.stack_base = PTRIN(param32.stack_base); 2421 param.stack_size = param32.stack_size; 2422 param.tls_base = PTRIN(param32.tls_base); 2423 param.tls_size = param32.tls_size; 2424 param.child_tid = PTRIN(param32.child_tid); 2425 param.parent_tid = PTRIN(param32.parent_tid); 2426 param.flags = param32.flags; 2427 param.rtp = PTRIN(param32.rtp); 2428 param.spare[0] = PTRIN(param32.spare[0]); 2429 param.spare[1] = PTRIN(param32.spare[1]); 2430 param.spare[2] = PTRIN(param32.spare[2]); 2431 2432 return (kern_thr_new(td, ¶m)); 2433} 2434 2435int 2436freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2437{ 2438 struct timespec32 ts32; 2439 struct timespec ts, *tsp; 2440 int error; 2441 2442 error = 0; 2443 tsp = NULL; 2444 if (uap->timeout != NULL) { 2445 error = copyin((const void *)uap->timeout, (void *)&ts32, 2446 sizeof(struct timespec32)); 2447 if (error != 0) 2448 return (error); 2449 ts.tv_sec = ts32.tv_sec; 2450 ts.tv_nsec = ts32.tv_nsec; 2451 tsp = &ts; 2452 } 2453 return (kern_thr_suspend(td, tsp)); 2454} 2455 2456void 2457siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2458{ 2459 bzero(dst, sizeof(*dst)); 2460 dst->si_signo = src->si_signo; 2461 dst->si_errno = src->si_errno; 2462 dst->si_code = src->si_code; 2463 dst->si_pid = src->si_pid; 2464 dst->si_uid = src->si_uid; 2465 dst->si_status = src->si_status; 2466 dst->si_addr = (uintptr_t)src->si_addr; 2467 dst->si_value.sival_int = src->si_value.sival_int; 2468 dst->si_timerid = src->si_timerid; 2469 dst->si_overrun = src->si_overrun; 2470} 2471 2472int 2473freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2474{ 2475 struct timespec32 ts32; 2476 struct timespec ts; 2477 struct timespec *timeout; 2478 sigset_t set; 2479 ksiginfo_t ksi; 2480 struct siginfo32 si32; 2481 int error; 2482 2483 if (uap->timeout) { 2484 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2485 if (error) 2486 return (error); 2487 ts.tv_sec = ts32.tv_sec; 2488 ts.tv_nsec = ts32.tv_nsec; 2489 timeout = &ts; 2490 } else 2491 timeout = NULL; 2492 2493 error = copyin(uap->set, &set, sizeof(set)); 2494 if (error) 2495 return (error); 2496 2497 error = kern_sigtimedwait(td, set, &ksi, timeout); 2498 if (error) 2499 return (error); 2500 2501 if (uap->info) { 2502 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2503 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2504 } 2505 2506 if (error == 0) 2507 td->td_retval[0] = ksi.ksi_signo; 2508 return (error); 2509} 2510 2511/* 2512 * MPSAFE 2513 */ 2514int 2515freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2516{ 2517 ksiginfo_t ksi; 2518 struct siginfo32 si32; 2519 sigset_t set; 2520 int error; 2521 2522 error = copyin(uap->set, &set, sizeof(set)); 2523 if (error) 2524 return (error); 2525 2526 error = kern_sigtimedwait(td, set, &ksi, NULL); 2527 if (error) 2528 return (error); 2529 2530 if (uap->info) { 2531 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2532 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2533 } 2534 if (error == 0) 2535 td->td_retval[0] = ksi.ksi_signo; 2536 return (error); 2537} 2538 2539int 2540freebsd32_cpuset_setid(struct thread *td, 2541 struct freebsd32_cpuset_setid_args *uap) 2542{ 2543 struct cpuset_setid_args ap; 2544 2545 ap.which = uap->which; 2546 ap.id = PAIR32TO64(id_t,uap->id); 2547 ap.setid = uap->setid; 2548 2549 return (sys_cpuset_setid(td, &ap)); 2550} 2551 2552int 2553freebsd32_cpuset_getid(struct thread *td, 2554 struct freebsd32_cpuset_getid_args *uap) 2555{ 2556 struct cpuset_getid_args ap; 2557 2558 ap.level = uap->level; 2559 ap.which = uap->which; 2560 ap.id = PAIR32TO64(id_t,uap->id); 2561 ap.setid = uap->setid; 2562 2563 return (sys_cpuset_getid(td, &ap)); 2564} 2565 2566int 2567freebsd32_cpuset_getaffinity(struct thread *td, 2568 struct freebsd32_cpuset_getaffinity_args *uap) 2569{ 2570 struct cpuset_getaffinity_args ap; 2571 2572 ap.level = uap->level; 2573 ap.which = uap->which; 2574 ap.id = PAIR32TO64(id_t,uap->id); 2575 ap.cpusetsize = uap->cpusetsize; 2576 ap.mask = uap->mask; 2577 2578 return (sys_cpuset_getaffinity(td, &ap)); 2579} 2580 2581int 2582freebsd32_cpuset_setaffinity(struct thread *td, 2583 struct freebsd32_cpuset_setaffinity_args *uap) 2584{ 2585 struct cpuset_setaffinity_args ap; 2586 2587 ap.level = uap->level; 2588 ap.which = uap->which; 2589 ap.id = PAIR32TO64(id_t,uap->id); 2590 ap.cpusetsize = uap->cpusetsize; 2591 ap.mask = uap->mask; 2592 2593 return (sys_cpuset_setaffinity(td, &ap)); 2594} 2595 2596int 2597freebsd32_nmount(struct thread *td, 2598 struct freebsd32_nmount_args /* { 2599 struct iovec *iovp; 2600 unsigned int iovcnt; 2601 int flags; 2602 } */ *uap) 2603{ 2604 struct uio *auio; 2605 uint64_t flags; 2606 int error; 2607 2608 /* 2609 * Mount flags are now 64-bits. On 32-bit archtectures only 2610 * 32-bits are passed in, but from here on everything handles 2611 * 64-bit flags correctly. 2612 */ 2613 flags = uap->flags; 2614 2615 AUDIT_ARG_FFLAGS(flags); 2616 2617 /* 2618 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2619 * userspace to set this flag, but we must filter it out if we want 2620 * MNT_UPDATE on the root file system to work. 2621 * MNT_ROOTFS should only be set by the kernel when mounting its 2622 * root file system. 2623 */ 2624 flags &= ~MNT_ROOTFS; 2625 2626 /* 2627 * check that we have an even number of iovec's 2628 * and that we have at least two options. 2629 */ 2630 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2631 return (EINVAL); 2632 2633 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2634 if (error) 2635 return (error); 2636 error = vfs_donmount(td, flags, auio); 2637 2638 free(auio, M_IOV); 2639 return error; 2640} 2641 2642#if 0 2643int 2644freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2645{ 2646 struct yyy32 *p32, s32; 2647 struct yyy *p = NULL, s; 2648 struct xxx_arg ap; 2649 int error; 2650 2651 if (uap->zzz) { 2652 error = copyin(uap->zzz, &s32, sizeof(s32)); 2653 if (error) 2654 return (error); 2655 /* translate in */ 2656 p = &s; 2657 } 2658 error = kern_xxx(td, p); 2659 if (error) 2660 return (error); 2661 if (uap->zzz) { 2662 /* translate out */ 2663 error = copyout(&s32, p32, sizeof(s32)); 2664 } 2665 return (error); 2666} 2667#endif 2668 2669int 2670syscall32_register(int *offset, struct sysent *new_sysent, 2671 struct sysent *old_sysent, int flags) 2672{ 2673 2674 if ((flags & ~SY_THR_STATIC) != 0) 2675 return (EINVAL); 2676 2677 if (*offset == NO_SYSCALL) { 2678 int i; 2679 2680 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2681 if (freebsd32_sysent[i].sy_call == 2682 (sy_call_t *)lkmnosys) 2683 break; 2684 if (i == SYS_MAXSYSCALL) 2685 return (ENFILE); 2686 *offset = i; 2687 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2688 return (EINVAL); 2689 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2690 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2691 return (EEXIST); 2692 2693 *old_sysent = freebsd32_sysent[*offset]; 2694 freebsd32_sysent[*offset] = *new_sysent; 2695 atomic_store_rel_32(&freebsd32_sysent[*offset].sy_thrcnt, flags); 2696 return (0); 2697} 2698 2699int 2700syscall32_deregister(int *offset, struct sysent *old_sysent) 2701{ 2702 2703 if (*offset == 0) 2704 return (0); 2705 2706 freebsd32_sysent[*offset] = *old_sysent; 2707 return (0); 2708} 2709 2710int 2711syscall32_module_handler(struct module *mod, int what, void *arg) 2712{ 2713 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2714 modspecific_t ms; 2715 int error; 2716 2717 switch (what) { 2718 case MOD_LOAD: 2719 error = syscall32_register(data->offset, data->new_sysent, 2720 &data->old_sysent, SY_THR_STATIC_KLD); 2721 if (error) { 2722 /* Leave a mark so we know to safely unload below. */ 2723 data->offset = NULL; 2724 return error; 2725 } 2726 ms.intval = *data->offset; 2727 MOD_XLOCK; 2728 module_setspecific(mod, &ms); 2729 MOD_XUNLOCK; 2730 if (data->chainevh) 2731 error = data->chainevh(mod, what, data->chainarg); 2732 return (error); 2733 case MOD_UNLOAD: 2734 /* 2735 * MOD_LOAD failed, so just return without calling the 2736 * chained handler since we didn't pass along the MOD_LOAD 2737 * event. 2738 */ 2739 if (data->offset == NULL) 2740 return (0); 2741 if (data->chainevh) { 2742 error = data->chainevh(mod, what, data->chainarg); 2743 if (error) 2744 return (error); 2745 } 2746 error = syscall32_deregister(data->offset, &data->old_sysent); 2747 return (error); 2748 default: 2749 error = EOPNOTSUPP; 2750 if (data->chainevh) 2751 error = data->chainevh(mod, what, data->chainarg); 2752 return (error); 2753 } 2754} 2755 2756int 2757syscall32_helper_register(struct syscall_helper_data *sd, int flags) 2758{ 2759 struct syscall_helper_data *sd1; 2760 int error; 2761 2762 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2763 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2764 &sd1->old_sysent, flags); 2765 if (error != 0) { 2766 syscall32_helper_unregister(sd); 2767 return (error); 2768 } 2769 sd1->registered = 1; 2770 } 2771 return (0); 2772} 2773 2774int 2775syscall32_helper_unregister(struct syscall_helper_data *sd) 2776{ 2777 struct syscall_helper_data *sd1; 2778 2779 for (sd1 = sd; sd1->registered != 0; sd1++) { 2780 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2781 sd1->registered = 0; 2782 } 2783 return (0); 2784} 2785 2786register_t * 2787freebsd32_copyout_strings(struct image_params *imgp) 2788{ 2789 int argc, envc, i; 2790 u_int32_t *vectp; 2791 char *stringp; 2792 uintptr_t destp; 2793 u_int32_t *stack_base; 2794 struct freebsd32_ps_strings *arginfo; 2795 char canary[sizeof(long) * 8]; 2796 int32_t pagesizes32[MAXPAGESIZES]; 2797 size_t execpath_len; 2798 int szsigcode; 2799 2800 /* 2801 * Calculate string base and vector table pointers. 2802 * Also deal with signal trampoline code for this exec type. 2803 */ 2804 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2805 execpath_len = strlen(imgp->execpath) + 1; 2806 else 2807 execpath_len = 0; 2808 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2809 sv_psstrings; 2810 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2811 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2812 else 2813 szsigcode = 0; 2814 destp = (uintptr_t)arginfo; 2815 2816 /* 2817 * install sigcode 2818 */ 2819 if (szsigcode != 0) { 2820 destp -= szsigcode; 2821 destp = rounddown2(destp, sizeof(uint32_t)); 2822 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2823 szsigcode); 2824 } 2825 2826 /* 2827 * Copy the image path for the rtld. 2828 */ 2829 if (execpath_len != 0) { 2830 destp -= execpath_len; 2831 imgp->execpathp = destp; 2832 copyout(imgp->execpath, (void *)destp, execpath_len); 2833 } 2834 2835 /* 2836 * Prepare the canary for SSP. 2837 */ 2838 arc4rand(canary, sizeof(canary), 0); 2839 destp -= sizeof(canary); 2840 imgp->canary = destp; 2841 copyout(canary, (void *)destp, sizeof(canary)); 2842 imgp->canarylen = sizeof(canary); 2843 2844 /* 2845 * Prepare the pagesizes array. 2846 */ 2847 for (i = 0; i < MAXPAGESIZES; i++) 2848 pagesizes32[i] = (uint32_t)pagesizes[i]; 2849 destp -= sizeof(pagesizes32); 2850 destp = rounddown2(destp, sizeof(uint32_t)); 2851 imgp->pagesizes = destp; 2852 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2853 imgp->pagesizeslen = sizeof(pagesizes32); 2854 2855 destp -= ARG_MAX - imgp->args->stringspace; 2856 destp = rounddown2(destp, sizeof(uint32_t)); 2857 2858 /* 2859 * If we have a valid auxargs ptr, prepare some room 2860 * on the stack. 2861 */ 2862 if (imgp->auxargs) { 2863 /* 2864 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2865 * lower compatibility. 2866 */ 2867 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2868 : (AT_COUNT * 2); 2869 /* 2870 * The '+ 2' is for the null pointers at the end of each of 2871 * the arg and env vector sets,and imgp->auxarg_size is room 2872 * for argument of Runtime loader. 2873 */ 2874 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2875 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2876 sizeof(u_int32_t)); 2877 } else { 2878 /* 2879 * The '+ 2' is for the null pointers at the end of each of 2880 * the arg and env vector sets 2881 */ 2882 vectp = (u_int32_t *)(destp - (imgp->args->argc + 2883 imgp->args->envc + 2) * sizeof(u_int32_t)); 2884 } 2885 2886 /* 2887 * vectp also becomes our initial stack base 2888 */ 2889 stack_base = vectp; 2890 2891 stringp = imgp->args->begin_argv; 2892 argc = imgp->args->argc; 2893 envc = imgp->args->envc; 2894 /* 2895 * Copy out strings - arguments and environment. 2896 */ 2897 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2898 2899 /* 2900 * Fill in "ps_strings" struct for ps, w, etc. 2901 */ 2902 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2903 suword32(&arginfo->ps_nargvstr, argc); 2904 2905 /* 2906 * Fill in argument portion of vector table. 2907 */ 2908 for (; argc > 0; --argc) { 2909 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2910 while (*stringp++ != 0) 2911 destp++; 2912 destp++; 2913 } 2914 2915 /* a null vector table pointer separates the argp's from the envp's */ 2916 suword32(vectp++, 0); 2917 2918 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2919 suword32(&arginfo->ps_nenvstr, envc); 2920 2921 /* 2922 * Fill in environment portion of vector table. 2923 */ 2924 for (; envc > 0; --envc) { 2925 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2926 while (*stringp++ != 0) 2927 destp++; 2928 destp++; 2929 } 2930 2931 /* end of vector table is a null pointer */ 2932 suword32(vectp, 0); 2933 2934 return ((register_t *)stack_base); 2935} 2936 2937int 2938freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2939{ 2940 struct kld_file_stat stat; 2941 struct kld32_file_stat stat32; 2942 int error, version; 2943 2944 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2945 != 0) 2946 return (error); 2947 if (version != sizeof(struct kld32_file_stat_1) && 2948 version != sizeof(struct kld32_file_stat)) 2949 return (EINVAL); 2950 2951 error = kern_kldstat(td, uap->fileid, &stat); 2952 if (error != 0) 2953 return (error); 2954 2955 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name)); 2956 CP(stat, stat32, refs); 2957 CP(stat, stat32, id); 2958 PTROUT_CP(stat, stat32, address); 2959 CP(stat, stat32, size); 2960 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname)); 2961 return (copyout(&stat32, uap->stat, version)); 2962} 2963 2964int 2965freebsd32_posix_fallocate(struct thread *td, 2966 struct freebsd32_posix_fallocate_args *uap) 2967{ 2968 2969 td->td_retval[0] = kern_posix_fallocate(td, uap->fd, 2970 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 2971 return (0); 2972} 2973 2974int 2975freebsd32_posix_fadvise(struct thread *td, 2976 struct freebsd32_posix_fadvise_args *uap) 2977{ 2978 2979 td->td_retval[0] = kern_posix_fadvise(td, uap->fd, 2980 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len), 2981 uap->advice); 2982 return (0); 2983} 2984 2985int 2986convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 2987{ 2988 2989 CP(*sig32, *sig, sigev_notify); 2990 switch (sig->sigev_notify) { 2991 case SIGEV_NONE: 2992 break; 2993 case SIGEV_THREAD_ID: 2994 CP(*sig32, *sig, sigev_notify_thread_id); 2995 /* FALLTHROUGH */ 2996 case SIGEV_SIGNAL: 2997 CP(*sig32, *sig, sigev_signo); 2998 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 2999 break; 3000 case SIGEV_KEVENT: 3001 CP(*sig32, *sig, sigev_notify_kqueue); 3002 CP(*sig32, *sig, sigev_notify_kevent_flags); 3003 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3004 break; 3005 default: 3006 return (EINVAL); 3007 } 3008 return (0); 3009} 3010 3011int 3012freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3013{ 3014 void *data; 3015 union { 3016 struct procctl_reaper_status rs; 3017 struct procctl_reaper_pids rp; 3018 struct procctl_reaper_kill rk; 3019 } x; 3020 union { 3021 struct procctl_reaper_pids32 rp; 3022 } x32; 3023 int error, error1, flags; 3024 3025 switch (uap->com) { 3026 case PROC_SPROTECT: 3027 case PROC_TRACE_CTL: 3028 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3029 if (error != 0) 3030 return (error); 3031 data = &flags; 3032 break; 3033 case PROC_REAP_ACQUIRE: 3034 case PROC_REAP_RELEASE: 3035 if (uap->data != NULL) 3036 return (EINVAL); 3037 data = NULL; 3038 break; 3039 case PROC_REAP_STATUS: 3040 data = &x.rs; 3041 break; 3042 case PROC_REAP_GETPIDS: 3043 error = copyin(uap->data, &x32.rp, sizeof(x32.rp)); 3044 if (error != 0) 3045 return (error); 3046 CP(x32.rp, x.rp, rp_count); 3047 PTRIN_CP(x32.rp, x.rp, rp_pids); 3048 data = &x.rp; 3049 break; 3050 case PROC_REAP_KILL: 3051 error = copyin(uap->data, &x.rk, sizeof(x.rk)); 3052 if (error != 0) 3053 return (error); 3054 data = &x.rk; 3055 break; 3056 case PROC_TRACE_STATUS: 3057 data = &flags; 3058 break; 3059 default: 3060 return (EINVAL); 3061 } 3062 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3063 uap->com, data); 3064 switch (uap->com) { 3065 case PROC_REAP_STATUS: 3066 if (error == 0) 3067 error = copyout(&x.rs, uap->data, sizeof(x.rs)); 3068 break; 3069 case PROC_REAP_KILL: 3070 error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); 3071 if (error == 0) 3072 error = error1; 3073 break; 3074 case PROC_TRACE_STATUS: 3075 if (error == 0) 3076 error = copyout(&flags, uap->data, sizeof(flags)); 3077 break; 3078 } 3079 return (error); 3080} 3081 3082int 3083freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 3084{ 3085 long tmp; 3086 3087 switch (uap->cmd) { 3088 /* 3089 * Do unsigned conversion for arg when operation 3090 * interprets it as flags or pointer. 3091 */ 3092 case F_SETLK_REMOTE: 3093 case F_SETLKW: 3094 case F_SETLK: 3095 case F_GETLK: 3096 case F_SETFD: 3097 case F_SETFL: 3098 case F_OGETLK: 3099 case F_OSETLK: 3100 case F_OSETLKW: 3101 tmp = (unsigned int)(uap->arg); 3102 break; 3103 default: 3104 tmp = uap->arg; 3105 break; 3106 } 3107 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 3108} 3109 3110int 3111freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap) 3112{ 3113 struct timespec32 ts32; 3114 struct timespec ts, *tsp; 3115 sigset_t set, *ssp; 3116 int error; 3117 3118 if (uap->ts != NULL) { 3119 error = copyin(uap->ts, &ts32, sizeof(ts32)); 3120 if (error != 0) 3121 return (error); 3122 CP(ts32, ts, tv_sec); 3123 CP(ts32, ts, tv_nsec); 3124 tsp = &ts; 3125 } else 3126 tsp = NULL; 3127 if (uap->set != NULL) { 3128 error = copyin(uap->set, &set, sizeof(set)); 3129 if (error != 0) 3130 return (error); 3131 ssp = &set; 3132 } else 3133 ssp = NULL; 3134 3135 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp)); 3136} 3137