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("$FreeBSD$"); 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> 109 110 FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD"); 111 112 #ifndef __mips__ 113 CTASSERT(sizeof(struct timeval32) == 8); 114 CTASSERT(sizeof(struct timespec32) == 8); 115 CTASSERT(sizeof(struct itimerval32) == 16); 116 #endif 117 CTASSERT(sizeof(struct statfs32) == 256); 118 #ifndef __mips__ 119 CTASSERT(sizeof(struct rusage32) == 72); 120 #endif 121 CTASSERT(sizeof(struct sigaltstack32) == 12); 122 CTASSERT(sizeof(struct kevent32) == 20); 123 CTASSERT(sizeof(struct iovec32) == 8); 124 CTASSERT(sizeof(struct msghdr32) == 28); 125 #ifndef __mips__ 126 CTASSERT(sizeof(struct stat32) == 96); 127 #endif 128 CTASSERT(sizeof(struct sigaction32) == 24); 129 130 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 131 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 132 133 void 134 freebsd32_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 } 154 155 int 156 freebsd32_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 } 177 178 int 179 freebsd32_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 215 static void 216 copy_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 246 int 247 freebsd4_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; 252 int error; 253 254 count = uap->bufsize / sizeof(struct statfs32); 255 size = count * sizeof(struct statfs); 256 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags); 257 if (size > 0) { 258 count = td->td_retval[0]; 259 sp = buf; 260 while (count > 0 && error == 0) { 261 copy_statfs(sp, &stat32); 262 error = copyout(&stat32, uap->buf, sizeof(stat32)); 263 sp++; 264 uap->buf++; 265 count--; 266 } 267 free(buf, M_TEMP); 268 } 269 return (error); 270 } 271 #endif 272 273 int 274 freebsd32_sigaltstack(struct thread *td, 275 struct freebsd32_sigaltstack_args *uap) 276 { 277 struct sigaltstack32 s32; 278 struct sigaltstack ss, oss, *ssp; 279 int error; 280 281 if (uap->ss != NULL) { 282 error = copyin(uap->ss, &s32, sizeof(s32)); 283 if (error) 284 return (error); 285 PTRIN_CP(s32, ss, ss_sp); 286 CP(s32, ss, ss_size); 287 CP(s32, ss, ss_flags); 288 ssp = &ss; 289 } else 290 ssp = NULL; 291 error = kern_sigaltstack(td, ssp, &oss); 292 if (error == 0 && uap->oss != NULL) { 293 PTROUT_CP(oss, s32, ss_sp); 294 CP(oss, s32, ss_size); 295 CP(oss, s32, ss_flags); 296 error = copyout(&s32, uap->oss, sizeof(s32)); 297 } 298 return (error); 299 } 300 301 /* 302 * Custom version of exec_copyin_args() so that we can translate 303 * the pointers. 304 */ 305 int 306 freebsd32_exec_copyin_args(struct image_args *args, char *fname, 307 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 308 { 309 char *argp, *envp; 310 u_int32_t *p32, arg; 311 size_t length; 312 int error; 313 314 bzero(args, sizeof(*args)); 315 if (argv == NULL) 316 return (EFAULT); 317 318 /* 319 * Allocate demand-paged memory for the file name, argument, and 320 * environment strings. 321 */ 322 error = exec_alloc_args(args); 323 if (error != 0) 324 return (error); 325 326 /* 327 * Copy the file name. 328 */ 329 if (fname != NULL) { 330 args->fname = args->buf; 331 error = (segflg == UIO_SYSSPACE) ? 332 copystr(fname, args->fname, PATH_MAX, &length) : 333 copyinstr(fname, args->fname, PATH_MAX, &length); 334 if (error != 0) 335 goto err_exit; 336 } else 337 length = 0; 338 339 args->begin_argv = args->buf + length; 340 args->endp = args->begin_argv; 341 args->stringspace = ARG_MAX; 342 343 /* 344 * extract arguments first 345 */ 346 p32 = argv; 347 for (;;) { 348 error = copyin(p32++, &arg, sizeof(arg)); 349 if (error) 350 goto err_exit; 351 if (arg == 0) 352 break; 353 argp = PTRIN(arg); 354 error = copyinstr(argp, args->endp, args->stringspace, &length); 355 if (error) { 356 if (error == ENAMETOOLONG) 357 error = E2BIG; 358 goto err_exit; 359 } 360 args->stringspace -= length; 361 args->endp += length; 362 args->argc++; 363 } 364 365 args->begin_envv = args->endp; 366 367 /* 368 * extract environment strings 369 */ 370 if (envv) { 371 p32 = envv; 372 for (;;) { 373 error = copyin(p32++, &arg, sizeof(arg)); 374 if (error) 375 goto err_exit; 376 if (arg == 0) 377 break; 378 envp = PTRIN(arg); 379 error = copyinstr(envp, args->endp, args->stringspace, 380 &length); 381 if (error) { 382 if (error == ENAMETOOLONG) 383 error = E2BIG; 384 goto err_exit; 385 } 386 args->stringspace -= length; 387 args->endp += length; 388 args->envc++; 389 } 390 } 391 392 return (0); 393 394 err_exit: 395 exec_free_args(args); 396 return (error); 397 } 398 399 int 400 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 401 { 402 struct image_args eargs; 403 int error; 404 405 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 406 uap->argv, uap->envv); 407 if (error == 0) 408 error = kern_execve(td, &eargs, NULL); 409 return (error); 410 } 411 412 int 413 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 414 { 415 struct image_args eargs; 416 int error; 417 418 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 419 uap->argv, uap->envv); 420 if (error == 0) { 421 eargs.fd = uap->fd; 422 error = kern_execve(td, &eargs, NULL); 423 } 424 return (error); 425 } 426 427 int 428 freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 429 { 430 struct mprotect_args ap; 431 432 ap.addr = PTRIN(uap->addr); 433 ap.len = uap->len; 434 ap.prot = uap->prot; 435 #if defined(__amd64__) 436 if (i386_read_exec && (ap.prot & PROT_READ) != 0) 437 ap.prot |= PROT_EXEC; 438 #endif 439 return (sys_mprotect(td, &ap)); 440 } 441 442 int 443 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 444 { 445 struct mmap_args ap; 446 vm_offset_t addr = (vm_offset_t) uap->addr; 447 vm_size_t len = uap->len; 448 int prot = uap->prot; 449 int flags = uap->flags; 450 int fd = uap->fd; 451 off_t pos = PAIR32TO64(off_t,uap->pos); 452 453 #if defined(__amd64__) 454 if (i386_read_exec && (prot & PROT_READ)) 455 prot |= PROT_EXEC; 456 #endif 457 458 ap.addr = (void *) addr; 459 ap.len = len; 460 ap.prot = prot; 461 ap.flags = flags; 462 ap.fd = fd; 463 ap.pos = pos; 464 465 return (sys_mmap(td, &ap)); 466 } 467 468 #ifdef COMPAT_FREEBSD6 469 int 470 freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 471 { 472 struct freebsd32_mmap_args ap; 473 474 ap.addr = uap->addr; 475 ap.len = uap->len; 476 ap.prot = uap->prot; 477 ap.flags = uap->flags; 478 ap.fd = uap->fd; 479 ap.pos1 = uap->pos1; 480 ap.pos2 = uap->pos2; 481 482 return (freebsd32_mmap(td, &ap)); 483 } 484 #endif 485 486 int 487 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 488 { 489 struct itimerval itv, oitv, *itvp; 490 struct itimerval32 i32; 491 int error; 492 493 if (uap->itv != NULL) { 494 error = copyin(uap->itv, &i32, sizeof(i32)); 495 if (error) 496 return (error); 497 TV_CP(i32, itv, it_interval); 498 TV_CP(i32, itv, it_value); 499 itvp = &itv; 500 } else 501 itvp = NULL; 502 error = kern_setitimer(td, uap->which, itvp, &oitv); 503 if (error || uap->oitv == NULL) 504 return (error); 505 TV_CP(oitv, i32, it_interval); 506 TV_CP(oitv, i32, it_value); 507 return (copyout(&i32, uap->oitv, sizeof(i32))); 508 } 509 510 int 511 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 512 { 513 struct itimerval itv; 514 struct itimerval32 i32; 515 int error; 516 517 error = kern_getitimer(td, uap->which, &itv); 518 if (error || uap->itv == NULL) 519 return (error); 520 TV_CP(itv, i32, it_interval); 521 TV_CP(itv, i32, it_value); 522 return (copyout(&i32, uap->itv, sizeof(i32))); 523 } 524 525 int 526 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 527 { 528 struct timeval32 tv32; 529 struct timeval tv, *tvp; 530 int error; 531 532 if (uap->tv != NULL) { 533 error = copyin(uap->tv, &tv32, sizeof(tv32)); 534 if (error) 535 return (error); 536 CP(tv32, tv, tv_sec); 537 CP(tv32, tv, tv_usec); 538 tvp = &tv; 539 } else 540 tvp = NULL; 541 /* 542 * XXX Do pointers need PTRIN()? 543 */ 544 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 545 sizeof(int32_t) * 8)); 546 } 547 548 int 549 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 550 { 551 struct timespec32 ts32; 552 struct timespec ts; 553 struct timeval tv, *tvp; 554 sigset_t set, *uset; 555 int error; 556 557 if (uap->ts != NULL) { 558 error = copyin(uap->ts, &ts32, sizeof(ts32)); 559 if (error != 0) 560 return (error); 561 CP(ts32, ts, tv_sec); 562 CP(ts32, ts, tv_nsec); 563 TIMESPEC_TO_TIMEVAL(&tv, &ts); 564 tvp = &tv; 565 } else 566 tvp = NULL; 567 if (uap->sm != NULL) { 568 error = copyin(uap->sm, &set, sizeof(set)); 569 if (error != 0) 570 return (error); 571 uset = &set; 572 } else 573 uset = NULL; 574 /* 575 * XXX Do pointers need PTRIN()? 576 */ 577 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 578 uset, sizeof(int32_t) * 8); 579 return (error); 580 } 581 582 /* 583 * Copy 'count' items into the destination list pointed to by uap->eventlist. 584 */ 585 static int 586 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 587 { 588 struct freebsd32_kevent_args *uap; 589 struct kevent32 ks32[KQ_NEVENTS]; 590 int i, error = 0; 591 592 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 593 uap = (struct freebsd32_kevent_args *)arg; 594 595 for (i = 0; i < count; i++) { 596 CP(kevp[i], ks32[i], ident); 597 CP(kevp[i], ks32[i], filter); 598 CP(kevp[i], ks32[i], flags); 599 CP(kevp[i], ks32[i], fflags); 600 CP(kevp[i], ks32[i], data); 601 PTROUT_CP(kevp[i], ks32[i], udata); 602 } 603 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 604 if (error == 0) 605 uap->eventlist += count; 606 return (error); 607 } 608 609 /* 610 * Copy 'count' items from the list pointed to by uap->changelist. 611 */ 612 static int 613 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 614 { 615 struct freebsd32_kevent_args *uap; 616 struct kevent32 ks32[KQ_NEVENTS]; 617 int i, error = 0; 618 619 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 620 uap = (struct freebsd32_kevent_args *)arg; 621 622 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 623 if (error) 624 goto done; 625 uap->changelist += count; 626 627 for (i = 0; i < count; i++) { 628 CP(ks32[i], kevp[i], ident); 629 CP(ks32[i], kevp[i], filter); 630 CP(ks32[i], kevp[i], flags); 631 CP(ks32[i], kevp[i], fflags); 632 CP(ks32[i], kevp[i], data); 633 PTRIN_CP(ks32[i], kevp[i], udata); 634 } 635 done: 636 return (error); 637 } 638 639 int 640 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 641 { 642 struct timespec32 ts32; 643 struct timespec ts, *tsp; 644 struct kevent_copyops k_ops = { uap, 645 freebsd32_kevent_copyout, 646 freebsd32_kevent_copyin}; 647 int error; 648 649 650 if (uap->timeout) { 651 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 652 if (error) 653 return (error); 654 CP(ts32, ts, tv_sec); 655 CP(ts32, ts, tv_nsec); 656 tsp = &ts; 657 } else 658 tsp = NULL; 659 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 660 &k_ops, tsp); 661 return (error); 662 } 663 664 int 665 freebsd32_gettimeofday(struct thread *td, 666 struct freebsd32_gettimeofday_args *uap) 667 { 668 struct timeval atv; 669 struct timeval32 atv32; 670 struct timezone rtz; 671 int error = 0; 672 673 if (uap->tp) { 674 microtime(&atv); 675 CP(atv, atv32, tv_sec); 676 CP(atv, atv32, tv_usec); 677 error = copyout(&atv32, uap->tp, sizeof (atv32)); 678 } 679 if (error == 0 && uap->tzp != NULL) { 680 rtz.tz_minuteswest = tz_minuteswest; 681 rtz.tz_dsttime = tz_dsttime; 682 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 683 } 684 return (error); 685 } 686 687 int 688 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 689 { 690 struct rusage32 s32; 691 struct rusage s; 692 int error; 693 694 error = kern_getrusage(td, uap->who, &s); 695 if (error) 696 return (error); 697 if (uap->rusage != NULL) { 698 freebsd32_rusage_out(&s, &s32); 699 error = copyout(&s32, uap->rusage, sizeof(s32)); 700 } 701 return (error); 702 } 703 704 static int 705 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 706 { 707 struct iovec32 iov32; 708 struct iovec *iov; 709 struct uio *uio; 710 u_int iovlen; 711 int error, i; 712 713 *uiop = NULL; 714 if (iovcnt > UIO_MAXIOV) 715 return (EINVAL); 716 iovlen = iovcnt * sizeof(struct iovec); 717 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 718 iov = (struct iovec *)(uio + 1); 719 for (i = 0; i < iovcnt; i++) { 720 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 721 if (error) { 722 free(uio, M_IOV); 723 return (error); 724 } 725 iov[i].iov_base = PTRIN(iov32.iov_base); 726 iov[i].iov_len = iov32.iov_len; 727 } 728 uio->uio_iov = iov; 729 uio->uio_iovcnt = iovcnt; 730 uio->uio_segflg = UIO_USERSPACE; 731 uio->uio_offset = -1; 732 uio->uio_resid = 0; 733 for (i = 0; i < iovcnt; i++) { 734 if (iov->iov_len > INT_MAX - uio->uio_resid) { 735 free(uio, M_IOV); 736 return (EINVAL); 737 } 738 uio->uio_resid += iov->iov_len; 739 iov++; 740 } 741 *uiop = uio; 742 return (0); 743 } 744 745 int 746 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 747 { 748 struct uio *auio; 749 int error; 750 751 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 752 if (error) 753 return (error); 754 error = kern_readv(td, uap->fd, auio); 755 free(auio, M_IOV); 756 return (error); 757 } 758 759 int 760 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 761 { 762 struct uio *auio; 763 int error; 764 765 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 766 if (error) 767 return (error); 768 error = kern_writev(td, uap->fd, auio); 769 free(auio, M_IOV); 770 return (error); 771 } 772 773 int 774 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 775 { 776 struct uio *auio; 777 int error; 778 779 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 780 if (error) 781 return (error); 782 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 783 free(auio, M_IOV); 784 return (error); 785 } 786 787 int 788 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 789 { 790 struct uio *auio; 791 int error; 792 793 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 794 if (error) 795 return (error); 796 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 797 free(auio, M_IOV); 798 return (error); 799 } 800 801 int 802 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 803 int error) 804 { 805 struct iovec32 iov32; 806 struct iovec *iov; 807 u_int iovlen; 808 int i; 809 810 *iovp = NULL; 811 if (iovcnt > UIO_MAXIOV) 812 return (error); 813 iovlen = iovcnt * sizeof(struct iovec); 814 iov = malloc(iovlen, M_IOV, M_WAITOK); 815 for (i = 0; i < iovcnt; i++) { 816 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 817 if (error) { 818 free(iov, M_IOV); 819 return (error); 820 } 821 iov[i].iov_base = PTRIN(iov32.iov_base); 822 iov[i].iov_len = iov32.iov_len; 823 } 824 *iovp = iov; 825 return (0); 826 } 827 828 static int 829 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 830 { 831 struct msghdr32 m32; 832 int error; 833 834 error = copyin(msg32, &m32, sizeof(m32)); 835 if (error) 836 return (error); 837 msg->msg_name = PTRIN(m32.msg_name); 838 msg->msg_namelen = m32.msg_namelen; 839 msg->msg_iov = PTRIN(m32.msg_iov); 840 msg->msg_iovlen = m32.msg_iovlen; 841 msg->msg_control = PTRIN(m32.msg_control); 842 msg->msg_controllen = m32.msg_controllen; 843 msg->msg_flags = m32.msg_flags; 844 return (0); 845 } 846 847 static int 848 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 849 { 850 struct msghdr32 m32; 851 int error; 852 853 m32.msg_name = PTROUT(msg->msg_name); 854 m32.msg_namelen = msg->msg_namelen; 855 m32.msg_iov = PTROUT(msg->msg_iov); 856 m32.msg_iovlen = msg->msg_iovlen; 857 m32.msg_control = PTROUT(msg->msg_control); 858 m32.msg_controllen = msg->msg_controllen; 859 m32.msg_flags = msg->msg_flags; 860 error = copyout(&m32, msg32, sizeof(m32)); 861 return (error); 862 } 863 864 #ifndef __mips__ 865 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 866 #else 867 #define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 868 #endif 869 #define FREEBSD32_ALIGN(p) \ 870 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 871 #define FREEBSD32_CMSG_SPACE(l) \ 872 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 873 874 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 875 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 876 static int 877 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 878 { 879 struct cmsghdr *cm; 880 void *data; 881 socklen_t clen, datalen; 882 int error; 883 caddr_t ctlbuf; 884 int len, maxlen, copylen; 885 struct mbuf *m; 886 error = 0; 887 888 len = msg->msg_controllen; 889 maxlen = msg->msg_controllen; 890 msg->msg_controllen = 0; 891 892 m = control; 893 ctlbuf = msg->msg_control; 894 895 while (m && len > 0) { 896 cm = mtod(m, struct cmsghdr *); 897 clen = m->m_len; 898 899 while (cm != NULL) { 900 901 if (sizeof(struct cmsghdr) > clen || 902 cm->cmsg_len > clen) { 903 error = EINVAL; 904 break; 905 } 906 907 data = CMSG_DATA(cm); 908 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 909 910 /* Adjust message length */ 911 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 912 datalen; 913 914 915 /* Copy cmsghdr */ 916 copylen = sizeof(struct cmsghdr); 917 if (len < copylen) { 918 msg->msg_flags |= MSG_CTRUNC; 919 copylen = len; 920 } 921 922 error = copyout(cm,ctlbuf,copylen); 923 if (error) 924 goto exit; 925 926 ctlbuf += FREEBSD32_ALIGN(copylen); 927 len -= FREEBSD32_ALIGN(copylen); 928 929 if (len <= 0) 930 break; 931 932 /* Copy data */ 933 copylen = datalen; 934 if (len < copylen) { 935 msg->msg_flags |= MSG_CTRUNC; 936 copylen = len; 937 } 938 939 error = copyout(data,ctlbuf,copylen); 940 if (error) 941 goto exit; 942 943 ctlbuf += FREEBSD32_ALIGN(copylen); 944 len -= FREEBSD32_ALIGN(copylen); 945 946 if (CMSG_SPACE(datalen) < clen) { 947 clen -= CMSG_SPACE(datalen); 948 cm = (struct cmsghdr *) 949 ((caddr_t)cm + CMSG_SPACE(datalen)); 950 } else { 951 clen = 0; 952 cm = NULL; 953 } 954 } 955 m = m->m_next; 956 } 957 958 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 959 960 exit: 961 return (error); 962 963 } 964 965 int 966 freebsd32_recvmsg(td, uap) 967 struct thread *td; 968 struct freebsd32_recvmsg_args /* { 969 int s; 970 struct msghdr32 *msg; 971 int flags; 972 } */ *uap; 973 { 974 struct msghdr msg; 975 struct msghdr32 m32; 976 struct iovec *uiov, *iov; 977 struct mbuf *control = NULL; 978 struct mbuf **controlp; 979 980 int error; 981 error = copyin(uap->msg, &m32, sizeof(m32)); 982 if (error) 983 return (error); 984 error = freebsd32_copyinmsghdr(uap->msg, &msg); 985 if (error) 986 return (error); 987 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 988 EMSGSIZE); 989 if (error) 990 return (error); 991 msg.msg_flags = uap->flags; 992 uiov = msg.msg_iov; 993 msg.msg_iov = iov; 994 995 controlp = (msg.msg_control != NULL) ? &control : NULL; 996 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 997 if (error == 0) { 998 msg.msg_iov = uiov; 999 1000 if (control != NULL) 1001 error = freebsd32_copy_msg_out(&msg, control); 1002 else 1003 msg.msg_controllen = 0; 1004 1005 if (error == 0) 1006 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1007 } 1008 free(iov, M_IOV); 1009 1010 if (control != NULL) 1011 m_freem(control); 1012 1013 return (error); 1014 } 1015 1016 /* 1017 * Copy-in the array of control messages constructed using alignment 1018 * and padding suitable for a 32-bit environment and construct an 1019 * mbuf using alignment and padding suitable for a 64-bit kernel. 1020 * The alignment and padding are defined indirectly by CMSG_DATA(), 1021 * CMSG_SPACE() and CMSG_LEN(). 1022 */ 1023 static int 1024 freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1025 { 1026 struct mbuf *m; 1027 void *md; 1028 u_int idx, len, msglen; 1029 int error; 1030 1031 buflen = FREEBSD32_ALIGN(buflen); 1032 1033 if (buflen > MCLBYTES) 1034 return (EINVAL); 1035 1036 /* 1037 * Iterate over the buffer and get the length of each message 1038 * in there. This has 32-bit alignment and padding. Use it to 1039 * determine the length of these messages when using 64-bit 1040 * alignment and padding. 1041 */ 1042 idx = 0; 1043 len = 0; 1044 while (idx < buflen) { 1045 error = copyin(buf + idx, &msglen, sizeof(msglen)); 1046 if (error) 1047 return (error); 1048 if (msglen < sizeof(struct cmsghdr)) 1049 return (EINVAL); 1050 msglen = FREEBSD32_ALIGN(msglen); 1051 if (idx + msglen > buflen) 1052 return (EINVAL); 1053 idx += msglen; 1054 msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) - 1055 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1056 len += CMSG_ALIGN(msglen); 1057 } 1058 1059 if (len > MCLBYTES) 1060 return (EINVAL); 1061 1062 m = m_get(M_WAITOK, MT_CONTROL); 1063 if (len > MLEN) 1064 MCLGET(m, M_WAITOK); 1065 m->m_len = len; 1066 1067 md = mtod(m, void *); 1068 while (buflen > 0) { 1069 error = copyin(buf, md, sizeof(struct cmsghdr)); 1070 if (error) 1071 break; 1072 msglen = *(u_int *)md; 1073 msglen = FREEBSD32_ALIGN(msglen); 1074 1075 /* Modify the message length to account for alignment. */ 1076 *(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) - 1077 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1078 1079 md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr)); 1080 buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1081 buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1082 1083 msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1084 if (msglen > 0) { 1085 error = copyin(buf, md, msglen); 1086 if (error) 1087 break; 1088 md = (char *)md + CMSG_ALIGN(msglen); 1089 buf += msglen; 1090 buflen -= msglen; 1091 } 1092 } 1093 1094 if (error) 1095 m_free(m); 1096 else 1097 *mp = m; 1098 return (error); 1099 } 1100 1101 int 1102 freebsd32_sendmsg(struct thread *td, 1103 struct freebsd32_sendmsg_args *uap) 1104 { 1105 struct msghdr msg; 1106 struct msghdr32 m32; 1107 struct iovec *iov; 1108 struct mbuf *control = NULL; 1109 struct sockaddr *to = NULL; 1110 int error; 1111 1112 error = copyin(uap->msg, &m32, sizeof(m32)); 1113 if (error) 1114 return (error); 1115 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1116 if (error) 1117 return (error); 1118 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1119 EMSGSIZE); 1120 if (error) 1121 return (error); 1122 msg.msg_iov = iov; 1123 if (msg.msg_name != NULL) { 1124 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1125 if (error) { 1126 to = NULL; 1127 goto out; 1128 } 1129 msg.msg_name = to; 1130 } 1131 1132 if (msg.msg_control) { 1133 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1134 error = EINVAL; 1135 goto out; 1136 } 1137 1138 error = freebsd32_copyin_control(&control, msg.msg_control, 1139 msg.msg_controllen); 1140 if (error) 1141 goto out; 1142 1143 msg.msg_control = NULL; 1144 msg.msg_controllen = 0; 1145 } 1146 1147 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1148 UIO_USERSPACE); 1149 1150 out: 1151 free(iov, M_IOV); 1152 if (to) 1153 free(to, M_SONAME); 1154 return (error); 1155 } 1156 1157 int 1158 freebsd32_recvfrom(struct thread *td, 1159 struct freebsd32_recvfrom_args *uap) 1160 { 1161 struct msghdr msg; 1162 struct iovec aiov; 1163 int error; 1164 1165 if (uap->fromlenaddr) { 1166 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1167 sizeof(msg.msg_namelen)); 1168 if (error) 1169 return (error); 1170 } else { 1171 msg.msg_namelen = 0; 1172 } 1173 1174 msg.msg_name = PTRIN(uap->from); 1175 msg.msg_iov = &aiov; 1176 msg.msg_iovlen = 1; 1177 aiov.iov_base = PTRIN(uap->buf); 1178 aiov.iov_len = uap->len; 1179 msg.msg_control = NULL; 1180 msg.msg_flags = uap->flags; 1181 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1182 if (error == 0 && uap->fromlenaddr) 1183 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1184 sizeof (msg.msg_namelen)); 1185 return (error); 1186 } 1187 1188 int 1189 freebsd32_settimeofday(struct thread *td, 1190 struct freebsd32_settimeofday_args *uap) 1191 { 1192 struct timeval32 tv32; 1193 struct timeval tv, *tvp; 1194 struct timezone tz, *tzp; 1195 int error; 1196 1197 if (uap->tv) { 1198 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1199 if (error) 1200 return (error); 1201 CP(tv32, tv, tv_sec); 1202 CP(tv32, tv, tv_usec); 1203 tvp = &tv; 1204 } else 1205 tvp = NULL; 1206 if (uap->tzp) { 1207 error = copyin(uap->tzp, &tz, sizeof(tz)); 1208 if (error) 1209 return (error); 1210 tzp = &tz; 1211 } else 1212 tzp = NULL; 1213 return (kern_settimeofday(td, tvp, tzp)); 1214 } 1215 1216 int 1217 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1218 { 1219 struct timeval32 s32[2]; 1220 struct timeval s[2], *sp; 1221 int error; 1222 1223 if (uap->tptr != NULL) { 1224 error = copyin(uap->tptr, s32, sizeof(s32)); 1225 if (error) 1226 return (error); 1227 CP(s32[0], s[0], tv_sec); 1228 CP(s32[0], s[0], tv_usec); 1229 CP(s32[1], s[1], tv_sec); 1230 CP(s32[1], s[1], tv_usec); 1231 sp = s; 1232 } else 1233 sp = NULL; 1234 return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE, 1235 sp, UIO_SYSSPACE)); 1236 } 1237 1238 int 1239 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1240 { 1241 struct timeval32 s32[2]; 1242 struct timeval s[2], *sp; 1243 int error; 1244 1245 if (uap->tptr != NULL) { 1246 error = copyin(uap->tptr, s32, sizeof(s32)); 1247 if (error) 1248 return (error); 1249 CP(s32[0], s[0], tv_sec); 1250 CP(s32[0], s[0], tv_usec); 1251 CP(s32[1], s[1], tv_sec); 1252 CP(s32[1], s[1], tv_usec); 1253 sp = s; 1254 } else 1255 sp = NULL; 1256 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1257 } 1258 1259 int 1260 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1261 { 1262 struct timeval32 s32[2]; 1263 struct timeval s[2], *sp; 1264 int error; 1265 1266 if (uap->tptr != NULL) { 1267 error = copyin(uap->tptr, s32, sizeof(s32)); 1268 if (error) 1269 return (error); 1270 CP(s32[0], s[0], tv_sec); 1271 CP(s32[0], s[0], tv_usec); 1272 CP(s32[1], s[1], tv_sec); 1273 CP(s32[1], s[1], tv_usec); 1274 sp = s; 1275 } else 1276 sp = NULL; 1277 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1278 } 1279 1280 int 1281 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1282 { 1283 struct timeval32 s32[2]; 1284 struct timeval s[2], *sp; 1285 int error; 1286 1287 if (uap->times != NULL) { 1288 error = copyin(uap->times, s32, sizeof(s32)); 1289 if (error) 1290 return (error); 1291 CP(s32[0], s[0], tv_sec); 1292 CP(s32[0], s[0], tv_usec); 1293 CP(s32[1], s[1], tv_sec); 1294 CP(s32[1], s[1], tv_usec); 1295 sp = s; 1296 } else 1297 sp = NULL; 1298 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1299 sp, UIO_SYSSPACE)); 1300 } 1301 1302 int 1303 freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap) 1304 { 1305 struct timespec32 ts32[2]; 1306 struct timespec ts[2], *tsp; 1307 int error; 1308 1309 if (uap->times != NULL) { 1310 error = copyin(uap->times, ts32, sizeof(ts32)); 1311 if (error) 1312 return (error); 1313 CP(ts32[0], ts[0], tv_sec); 1314 CP(ts32[0], ts[0], tv_nsec); 1315 CP(ts32[1], ts[1], tv_sec); 1316 CP(ts32[1], ts[1], tv_nsec); 1317 tsp = ts; 1318 } else 1319 tsp = NULL; 1320 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE)); 1321 } 1322 1323 int 1324 freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap) 1325 { 1326 struct timespec32 ts32[2]; 1327 struct timespec ts[2], *tsp; 1328 int error; 1329 1330 if (uap->times != NULL) { 1331 error = copyin(uap->times, ts32, sizeof(ts32)); 1332 if (error) 1333 return (error); 1334 CP(ts32[0], ts[0], tv_sec); 1335 CP(ts32[0], ts[0], tv_nsec); 1336 CP(ts32[1], ts[1], tv_sec); 1337 CP(ts32[1], ts[1], tv_nsec); 1338 tsp = ts; 1339 } else 1340 tsp = NULL; 1341 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE, 1342 tsp, UIO_SYSSPACE, uap->flag)); 1343 } 1344 1345 int 1346 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1347 { 1348 struct timeval32 tv32; 1349 struct timeval delta, olddelta, *deltap; 1350 int error; 1351 1352 if (uap->delta) { 1353 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1354 if (error) 1355 return (error); 1356 CP(tv32, delta, tv_sec); 1357 CP(tv32, delta, tv_usec); 1358 deltap = δ 1359 } else 1360 deltap = NULL; 1361 error = kern_adjtime(td, deltap, &olddelta); 1362 if (uap->olddelta && error == 0) { 1363 CP(olddelta, tv32, tv_sec); 1364 CP(olddelta, tv32, tv_usec); 1365 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1366 } 1367 return (error); 1368 } 1369 1370 #ifdef COMPAT_FREEBSD4 1371 int 1372 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1373 { 1374 struct statfs32 s32; 1375 struct statfs s; 1376 int error; 1377 1378 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1379 if (error) 1380 return (error); 1381 copy_statfs(&s, &s32); 1382 return (copyout(&s32, uap->buf, sizeof(s32))); 1383 } 1384 #endif 1385 1386 #ifdef COMPAT_FREEBSD4 1387 int 1388 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1389 { 1390 struct statfs32 s32; 1391 struct statfs s; 1392 int error; 1393 1394 error = kern_fstatfs(td, uap->fd, &s); 1395 if (error) 1396 return (error); 1397 copy_statfs(&s, &s32); 1398 return (copyout(&s32, uap->buf, sizeof(s32))); 1399 } 1400 #endif 1401 1402 #ifdef COMPAT_FREEBSD4 1403 int 1404 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1405 { 1406 struct statfs32 s32; 1407 struct statfs s; 1408 fhandle_t fh; 1409 int error; 1410 1411 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1412 return (error); 1413 error = kern_fhstatfs(td, fh, &s); 1414 if (error) 1415 return (error); 1416 copy_statfs(&s, &s32); 1417 return (copyout(&s32, uap->buf, sizeof(s32))); 1418 } 1419 #endif 1420 1421 int 1422 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1423 { 1424 struct pread_args ap; 1425 1426 ap.fd = uap->fd; 1427 ap.buf = uap->buf; 1428 ap.nbyte = uap->nbyte; 1429 ap.offset = PAIR32TO64(off_t,uap->offset); 1430 return (sys_pread(td, &ap)); 1431 } 1432 1433 int 1434 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1435 { 1436 struct pwrite_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_pwrite(td, &ap)); 1443 } 1444 1445 #ifdef COMPAT_43 1446 int 1447 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1448 { 1449 struct lseek_args nuap; 1450 1451 nuap.fd = uap->fd; 1452 nuap.offset = uap->offset; 1453 nuap.whence = uap->whence; 1454 return (sys_lseek(td, &nuap)); 1455 } 1456 #endif 1457 1458 int 1459 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1460 { 1461 int error; 1462 struct lseek_args ap; 1463 off_t pos; 1464 1465 ap.fd = uap->fd; 1466 ap.offset = PAIR32TO64(off_t,uap->offset); 1467 ap.whence = uap->whence; 1468 error = sys_lseek(td, &ap); 1469 /* Expand the quad return into two parts for eax and edx */ 1470 pos = td->td_uretoff.tdu_off; 1471 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1472 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1473 return error; 1474 } 1475 1476 int 1477 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1478 { 1479 struct truncate_args ap; 1480 1481 ap.path = uap->path; 1482 ap.length = PAIR32TO64(off_t,uap->length); 1483 return (sys_truncate(td, &ap)); 1484 } 1485 1486 int 1487 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1488 { 1489 struct ftruncate_args ap; 1490 1491 ap.fd = uap->fd; 1492 ap.length = PAIR32TO64(off_t,uap->length); 1493 return (sys_ftruncate(td, &ap)); 1494 } 1495 1496 #ifdef COMPAT_43 1497 int 1498 ofreebsd32_getdirentries(struct thread *td, 1499 struct ofreebsd32_getdirentries_args *uap) 1500 { 1501 struct ogetdirentries_args ap; 1502 int error; 1503 long loff; 1504 int32_t loff_cut; 1505 1506 ap.fd = uap->fd; 1507 ap.buf = uap->buf; 1508 ap.count = uap->count; 1509 ap.basep = NULL; 1510 error = kern_ogetdirentries(td, &ap, &loff); 1511 if (error == 0) { 1512 loff_cut = loff; 1513 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1514 } 1515 return (error); 1516 } 1517 #endif 1518 1519 int 1520 freebsd32_getdirentries(struct thread *td, 1521 struct freebsd32_getdirentries_args *uap) 1522 { 1523 long base; 1524 int32_t base32; 1525 int error; 1526 1527 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1528 NULL, UIO_USERSPACE); 1529 if (error) 1530 return (error); 1531 if (uap->basep != NULL) { 1532 base32 = base; 1533 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1534 } 1535 return (error); 1536 } 1537 1538 #ifdef COMPAT_FREEBSD6 1539 /* versions with the 'int pad' argument */ 1540 int 1541 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1542 { 1543 struct pread_args ap; 1544 1545 ap.fd = uap->fd; 1546 ap.buf = uap->buf; 1547 ap.nbyte = uap->nbyte; 1548 ap.offset = PAIR32TO64(off_t,uap->offset); 1549 return (sys_pread(td, &ap)); 1550 } 1551 1552 int 1553 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1554 { 1555 struct pwrite_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_pwrite(td, &ap)); 1562 } 1563 1564 int 1565 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1566 { 1567 int error; 1568 struct lseek_args ap; 1569 off_t pos; 1570 1571 ap.fd = uap->fd; 1572 ap.offset = PAIR32TO64(off_t,uap->offset); 1573 ap.whence = uap->whence; 1574 error = sys_lseek(td, &ap); 1575 /* Expand the quad return into two parts for eax and edx */ 1576 pos = *(off_t *)(td->td_retval); 1577 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1578 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1579 return error; 1580 } 1581 1582 int 1583 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1584 { 1585 struct truncate_args ap; 1586 1587 ap.path = uap->path; 1588 ap.length = PAIR32TO64(off_t,uap->length); 1589 return (sys_truncate(td, &ap)); 1590 } 1591 1592 int 1593 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1594 { 1595 struct ftruncate_args ap; 1596 1597 ap.fd = uap->fd; 1598 ap.length = PAIR32TO64(off_t,uap->length); 1599 return (sys_ftruncate(td, &ap)); 1600 } 1601 #endif /* COMPAT_FREEBSD6 */ 1602 1603 struct sf_hdtr32 { 1604 uint32_t headers; 1605 int hdr_cnt; 1606 uint32_t trailers; 1607 int trl_cnt; 1608 }; 1609 1610 static int 1611 freebsd32_do_sendfile(struct thread *td, 1612 struct freebsd32_sendfile_args *uap, int compat) 1613 { 1614 struct sf_hdtr32 hdtr32; 1615 struct sf_hdtr hdtr; 1616 struct uio *hdr_uio, *trl_uio; 1617 struct file *fp; 1618 cap_rights_t rights; 1619 struct iovec32 *iov32; 1620 off_t offset, sbytes; 1621 int error; 1622 1623 offset = PAIR32TO64(off_t, uap->offset); 1624 if (offset < 0) 1625 return (EINVAL); 1626 1627 hdr_uio = trl_uio = NULL; 1628 1629 if (uap->hdtr != NULL) { 1630 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1631 if (error) 1632 goto out; 1633 PTRIN_CP(hdtr32, hdtr, headers); 1634 CP(hdtr32, hdtr, hdr_cnt); 1635 PTRIN_CP(hdtr32, hdtr, trailers); 1636 CP(hdtr32, hdtr, trl_cnt); 1637 1638 if (hdtr.headers != NULL) { 1639 iov32 = PTRIN(hdtr32.headers); 1640 error = freebsd32_copyinuio(iov32, 1641 hdtr32.hdr_cnt, &hdr_uio); 1642 if (error) 1643 goto out; 1644 } 1645 if (hdtr.trailers != NULL) { 1646 iov32 = PTRIN(hdtr32.trailers); 1647 error = freebsd32_copyinuio(iov32, 1648 hdtr32.trl_cnt, &trl_uio); 1649 if (error) 1650 goto out; 1651 } 1652 } 1653 1654 AUDIT_ARG_FD(uap->fd); 1655 1656 if ((error = fget_read(td, uap->fd, 1657 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) 1658 goto out; 1659 1660 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1661 uap->nbytes, &sbytes, uap->flags, compat ? SFK_COMPAT : 0, td); 1662 fdrop(fp, td); 1663 1664 if (uap->sbytes != NULL) 1665 copyout(&sbytes, uap->sbytes, sizeof(off_t)); 1666 1667 out: 1668 if (hdr_uio) 1669 free(hdr_uio, M_IOV); 1670 if (trl_uio) 1671 free(trl_uio, M_IOV); 1672 return (error); 1673 } 1674 1675 #ifdef COMPAT_FREEBSD4 1676 int 1677 freebsd4_freebsd32_sendfile(struct thread *td, 1678 struct freebsd4_freebsd32_sendfile_args *uap) 1679 { 1680 return (freebsd32_do_sendfile(td, 1681 (struct freebsd32_sendfile_args *)uap, 1)); 1682 } 1683 #endif 1684 1685 int 1686 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1687 { 1688 1689 return (freebsd32_do_sendfile(td, uap, 0)); 1690 } 1691 1692 static void 1693 copy_stat(struct stat *in, struct stat32 *out) 1694 { 1695 1696 CP(*in, *out, st_dev); 1697 CP(*in, *out, st_ino); 1698 CP(*in, *out, st_mode); 1699 CP(*in, *out, st_nlink); 1700 CP(*in, *out, st_uid); 1701 CP(*in, *out, st_gid); 1702 CP(*in, *out, st_rdev); 1703 TS_CP(*in, *out, st_atim); 1704 TS_CP(*in, *out, st_mtim); 1705 TS_CP(*in, *out, st_ctim); 1706 CP(*in, *out, st_size); 1707 CP(*in, *out, st_blocks); 1708 CP(*in, *out, st_blksize); 1709 CP(*in, *out, st_flags); 1710 CP(*in, *out, st_gen); 1711 TS_CP(*in, *out, st_birthtim); 1712 } 1713 1714 #ifdef COMPAT_43 1715 static void 1716 copy_ostat(struct stat *in, struct ostat32 *out) 1717 { 1718 1719 CP(*in, *out, st_dev); 1720 CP(*in, *out, st_ino); 1721 CP(*in, *out, st_mode); 1722 CP(*in, *out, st_nlink); 1723 CP(*in, *out, st_uid); 1724 CP(*in, *out, st_gid); 1725 CP(*in, *out, st_rdev); 1726 CP(*in, *out, st_size); 1727 TS_CP(*in, *out, st_atim); 1728 TS_CP(*in, *out, st_mtim); 1729 TS_CP(*in, *out, st_ctim); 1730 CP(*in, *out, st_blksize); 1731 CP(*in, *out, st_blocks); 1732 CP(*in, *out, st_flags); 1733 CP(*in, *out, st_gen); 1734 } 1735 #endif 1736 1737 int 1738 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1739 { 1740 struct stat sb; 1741 struct stat32 sb32; 1742 int error; 1743 1744 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1745 &sb, NULL); 1746 if (error) 1747 return (error); 1748 copy_stat(&sb, &sb32); 1749 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1750 return (error); 1751 } 1752 1753 #ifdef COMPAT_43 1754 int 1755 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1756 { 1757 struct stat sb; 1758 struct ostat32 sb32; 1759 int error; 1760 1761 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1762 &sb, NULL); 1763 if (error) 1764 return (error); 1765 copy_ostat(&sb, &sb32); 1766 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1767 return (error); 1768 } 1769 #endif 1770 1771 int 1772 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1773 { 1774 struct stat ub; 1775 struct stat32 ub32; 1776 int error; 1777 1778 error = kern_fstat(td, uap->fd, &ub); 1779 if (error) 1780 return (error); 1781 copy_stat(&ub, &ub32); 1782 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1783 return (error); 1784 } 1785 1786 #ifdef COMPAT_43 1787 int 1788 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1789 { 1790 struct stat ub; 1791 struct ostat32 ub32; 1792 int error; 1793 1794 error = kern_fstat(td, uap->fd, &ub); 1795 if (error) 1796 return (error); 1797 copy_ostat(&ub, &ub32); 1798 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1799 return (error); 1800 } 1801 #endif 1802 1803 int 1804 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1805 { 1806 struct stat ub; 1807 struct stat32 ub32; 1808 int error; 1809 1810 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, 1811 &ub, NULL); 1812 if (error) 1813 return (error); 1814 copy_stat(&ub, &ub32); 1815 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1816 return (error); 1817 } 1818 1819 int 1820 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1821 { 1822 struct stat sb; 1823 struct stat32 sb32; 1824 int error; 1825 1826 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1827 UIO_USERSPACE, &sb, NULL); 1828 if (error) 1829 return (error); 1830 copy_stat(&sb, &sb32); 1831 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1832 return (error); 1833 } 1834 1835 #ifdef COMPAT_43 1836 int 1837 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1838 { 1839 struct stat sb; 1840 struct ostat32 sb32; 1841 int error; 1842 1843 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1844 UIO_USERSPACE, &sb, NULL); 1845 if (error) 1846 return (error); 1847 copy_ostat(&sb, &sb32); 1848 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1849 return (error); 1850 } 1851 #endif 1852 1853 int 1854 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1855 { 1856 int error, name[CTL_MAXNAME]; 1857 size_t j, oldlen; 1858 uint32_t tmp; 1859 1860 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1861 return (EINVAL); 1862 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1863 if (error) 1864 return (error); 1865 if (uap->oldlenp) { 1866 error = fueword32(uap->oldlenp, &tmp); 1867 oldlen = tmp; 1868 } else { 1869 oldlen = 0; 1870 } 1871 if (error != 0) 1872 return (EFAULT); 1873 error = userland_sysctl(td, name, uap->namelen, 1874 uap->old, &oldlen, 1, 1875 uap->new, uap->newlen, &j, SCTL_MASK32); 1876 if (error && error != ENOMEM) 1877 return (error); 1878 if (uap->oldlenp) 1879 suword32(uap->oldlenp, j); 1880 return (0); 1881 } 1882 1883 int 1884 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1885 { 1886 uint32_t version; 1887 int error; 1888 struct jail j; 1889 1890 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1891 if (error) 1892 return (error); 1893 1894 switch (version) { 1895 case 0: 1896 { 1897 /* FreeBSD single IPv4 jails. */ 1898 struct jail32_v0 j32_v0; 1899 1900 bzero(&j, sizeof(struct jail)); 1901 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1902 if (error) 1903 return (error); 1904 CP(j32_v0, j, version); 1905 PTRIN_CP(j32_v0, j, path); 1906 PTRIN_CP(j32_v0, j, hostname); 1907 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1908 break; 1909 } 1910 1911 case 1: 1912 /* 1913 * Version 1 was used by multi-IPv4 jail implementations 1914 * that never made it into the official kernel. 1915 */ 1916 return (EINVAL); 1917 1918 case 2: /* JAIL_API_VERSION */ 1919 { 1920 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1921 struct jail32 j32; 1922 1923 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1924 if (error) 1925 return (error); 1926 CP(j32, j, version); 1927 PTRIN_CP(j32, j, path); 1928 PTRIN_CP(j32, j, hostname); 1929 PTRIN_CP(j32, j, jailname); 1930 CP(j32, j, ip4s); 1931 CP(j32, j, ip6s); 1932 PTRIN_CP(j32, j, ip4); 1933 PTRIN_CP(j32, j, ip6); 1934 break; 1935 } 1936 1937 default: 1938 /* Sci-Fi jails are not supported, sorry. */ 1939 return (EINVAL); 1940 } 1941 return (kern_jail(td, &j)); 1942 } 1943 1944 int 1945 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1946 { 1947 struct uio *auio; 1948 int error; 1949 1950 /* Check that we have an even number of iovecs. */ 1951 if (uap->iovcnt & 1) 1952 return (EINVAL); 1953 1954 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1955 if (error) 1956 return (error); 1957 error = kern_jail_set(td, auio, uap->flags); 1958 free(auio, M_IOV); 1959 return (error); 1960 } 1961 1962 int 1963 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1964 { 1965 struct iovec32 iov32; 1966 struct uio *auio; 1967 int error, i; 1968 1969 /* Check that we have an even number of iovecs. */ 1970 if (uap->iovcnt & 1) 1971 return (EINVAL); 1972 1973 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1974 if (error) 1975 return (error); 1976 error = kern_jail_get(td, auio, uap->flags); 1977 if (error == 0) 1978 for (i = 0; i < uap->iovcnt; i++) { 1979 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1980 CP(auio->uio_iov[i], iov32, iov_len); 1981 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1982 if (error != 0) 1983 break; 1984 } 1985 free(auio, M_IOV); 1986 return (error); 1987 } 1988 1989 int 1990 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1991 { 1992 struct sigaction32 s32; 1993 struct sigaction sa, osa, *sap; 1994 int error; 1995 1996 if (uap->act) { 1997 error = copyin(uap->act, &s32, sizeof(s32)); 1998 if (error) 1999 return (error); 2000 sa.sa_handler = PTRIN(s32.sa_u); 2001 CP(s32, sa, sa_flags); 2002 CP(s32, sa, sa_mask); 2003 sap = &sa; 2004 } else 2005 sap = NULL; 2006 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2007 if (error == 0 && uap->oact != NULL) { 2008 s32.sa_u = PTROUT(osa.sa_handler); 2009 CP(osa, s32, sa_flags); 2010 CP(osa, s32, sa_mask); 2011 error = copyout(&s32, uap->oact, sizeof(s32)); 2012 } 2013 return (error); 2014 } 2015 2016 #ifdef COMPAT_FREEBSD4 2017 int 2018 freebsd4_freebsd32_sigaction(struct thread *td, 2019 struct freebsd4_freebsd32_sigaction_args *uap) 2020 { 2021 struct sigaction32 s32; 2022 struct sigaction sa, osa, *sap; 2023 int error; 2024 2025 if (uap->act) { 2026 error = copyin(uap->act, &s32, sizeof(s32)); 2027 if (error) 2028 return (error); 2029 sa.sa_handler = PTRIN(s32.sa_u); 2030 CP(s32, sa, sa_flags); 2031 CP(s32, sa, sa_mask); 2032 sap = &sa; 2033 } else 2034 sap = NULL; 2035 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2036 if (error == 0 && uap->oact != NULL) { 2037 s32.sa_u = PTROUT(osa.sa_handler); 2038 CP(osa, s32, sa_flags); 2039 CP(osa, s32, sa_mask); 2040 error = copyout(&s32, uap->oact, sizeof(s32)); 2041 } 2042 return (error); 2043 } 2044 #endif 2045 2046 #ifdef COMPAT_43 2047 struct osigaction32 { 2048 u_int32_t sa_u; 2049 osigset_t sa_mask; 2050 int sa_flags; 2051 }; 2052 2053 #define ONSIG 32 2054 2055 int 2056 ofreebsd32_sigaction(struct thread *td, 2057 struct ofreebsd32_sigaction_args *uap) 2058 { 2059 struct osigaction32 s32; 2060 struct sigaction sa, osa, *sap; 2061 int error; 2062 2063 if (uap->signum <= 0 || uap->signum >= ONSIG) 2064 return (EINVAL); 2065 2066 if (uap->nsa) { 2067 error = copyin(uap->nsa, &s32, sizeof(s32)); 2068 if (error) 2069 return (error); 2070 sa.sa_handler = PTRIN(s32.sa_u); 2071 CP(s32, sa, sa_flags); 2072 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2073 sap = &sa; 2074 } else 2075 sap = NULL; 2076 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2077 if (error == 0 && uap->osa != NULL) { 2078 s32.sa_u = PTROUT(osa.sa_handler); 2079 CP(osa, s32, sa_flags); 2080 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2081 error = copyout(&s32, uap->osa, sizeof(s32)); 2082 } 2083 return (error); 2084 } 2085 2086 int 2087 ofreebsd32_sigprocmask(struct thread *td, 2088 struct ofreebsd32_sigprocmask_args *uap) 2089 { 2090 sigset_t set, oset; 2091 int error; 2092 2093 OSIG2SIG(uap->mask, set); 2094 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2095 SIG2OSIG(oset, td->td_retval[0]); 2096 return (error); 2097 } 2098 2099 int 2100 ofreebsd32_sigpending(struct thread *td, 2101 struct ofreebsd32_sigpending_args *uap) 2102 { 2103 struct proc *p = td->td_proc; 2104 sigset_t siglist; 2105 2106 PROC_LOCK(p); 2107 siglist = p->p_siglist; 2108 SIGSETOR(siglist, td->td_siglist); 2109 PROC_UNLOCK(p); 2110 SIG2OSIG(siglist, td->td_retval[0]); 2111 return (0); 2112 } 2113 2114 struct sigvec32 { 2115 u_int32_t sv_handler; 2116 int sv_mask; 2117 int sv_flags; 2118 }; 2119 2120 int 2121 ofreebsd32_sigvec(struct thread *td, 2122 struct ofreebsd32_sigvec_args *uap) 2123 { 2124 struct sigvec32 vec; 2125 struct sigaction sa, osa, *sap; 2126 int error; 2127 2128 if (uap->signum <= 0 || uap->signum >= ONSIG) 2129 return (EINVAL); 2130 2131 if (uap->nsv) { 2132 error = copyin(uap->nsv, &vec, sizeof(vec)); 2133 if (error) 2134 return (error); 2135 sa.sa_handler = PTRIN(vec.sv_handler); 2136 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2137 sa.sa_flags = vec.sv_flags; 2138 sa.sa_flags ^= SA_RESTART; 2139 sap = &sa; 2140 } else 2141 sap = NULL; 2142 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2143 if (error == 0 && uap->osv != NULL) { 2144 vec.sv_handler = PTROUT(osa.sa_handler); 2145 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2146 vec.sv_flags = osa.sa_flags; 2147 vec.sv_flags &= ~SA_NOCLDWAIT; 2148 vec.sv_flags ^= SA_RESTART; 2149 error = copyout(&vec, uap->osv, sizeof(vec)); 2150 } 2151 return (error); 2152 } 2153 2154 int 2155 ofreebsd32_sigblock(struct thread *td, 2156 struct ofreebsd32_sigblock_args *uap) 2157 { 2158 sigset_t set, oset; 2159 2160 OSIG2SIG(uap->mask, set); 2161 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2162 SIG2OSIG(oset, td->td_retval[0]); 2163 return (0); 2164 } 2165 2166 int 2167 ofreebsd32_sigsetmask(struct thread *td, 2168 struct ofreebsd32_sigsetmask_args *uap) 2169 { 2170 sigset_t set, oset; 2171 2172 OSIG2SIG(uap->mask, set); 2173 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2174 SIG2OSIG(oset, td->td_retval[0]); 2175 return (0); 2176 } 2177 2178 int 2179 ofreebsd32_sigsuspend(struct thread *td, 2180 struct ofreebsd32_sigsuspend_args *uap) 2181 { 2182 sigset_t mask; 2183 2184 OSIG2SIG(uap->mask, mask); 2185 return (kern_sigsuspend(td, mask)); 2186 } 2187 2188 struct sigstack32 { 2189 u_int32_t ss_sp; 2190 int ss_onstack; 2191 }; 2192 2193 int 2194 ofreebsd32_sigstack(struct thread *td, 2195 struct ofreebsd32_sigstack_args *uap) 2196 { 2197 struct sigstack32 s32; 2198 struct sigstack nss, oss; 2199 int error = 0, unss; 2200 2201 if (uap->nss != NULL) { 2202 error = copyin(uap->nss, &s32, sizeof(s32)); 2203 if (error) 2204 return (error); 2205 nss.ss_sp = PTRIN(s32.ss_sp); 2206 CP(s32, nss, ss_onstack); 2207 unss = 1; 2208 } else { 2209 unss = 0; 2210 } 2211 oss.ss_sp = td->td_sigstk.ss_sp; 2212 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2213 if (unss) { 2214 td->td_sigstk.ss_sp = nss.ss_sp; 2215 td->td_sigstk.ss_size = 0; 2216 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2217 td->td_pflags |= TDP_ALTSTACK; 2218 } 2219 if (uap->oss != NULL) { 2220 s32.ss_sp = PTROUT(oss.ss_sp); 2221 CP(oss, s32, ss_onstack); 2222 error = copyout(&s32, uap->oss, sizeof(s32)); 2223 } 2224 return (error); 2225 } 2226 #endif 2227 2228 int 2229 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2230 { 2231 struct timespec32 rmt32, rqt32; 2232 struct timespec rmt, rqt; 2233 int error; 2234 2235 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2236 if (error) 2237 return (error); 2238 2239 CP(rqt32, rqt, tv_sec); 2240 CP(rqt32, rqt, tv_nsec); 2241 2242 if (uap->rmtp && 2243 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2244 return (EFAULT); 2245 error = kern_nanosleep(td, &rqt, &rmt); 2246 if (error && uap->rmtp) { 2247 int error2; 2248 2249 CP(rmt, rmt32, tv_sec); 2250 CP(rmt, rmt32, tv_nsec); 2251 2252 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2253 if (error2) 2254 error = error2; 2255 } 2256 return (error); 2257 } 2258 2259 int 2260 freebsd32_clock_gettime(struct thread *td, 2261 struct freebsd32_clock_gettime_args *uap) 2262 { 2263 struct timespec ats; 2264 struct timespec32 ats32; 2265 int error; 2266 2267 error = kern_clock_gettime(td, uap->clock_id, &ats); 2268 if (error == 0) { 2269 CP(ats, ats32, tv_sec); 2270 CP(ats, ats32, tv_nsec); 2271 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2272 } 2273 return (error); 2274 } 2275 2276 int 2277 freebsd32_clock_settime(struct thread *td, 2278 struct freebsd32_clock_settime_args *uap) 2279 { 2280 struct timespec ats; 2281 struct timespec32 ats32; 2282 int error; 2283 2284 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2285 if (error) 2286 return (error); 2287 CP(ats32, ats, tv_sec); 2288 CP(ats32, ats, tv_nsec); 2289 2290 return (kern_clock_settime(td, uap->clock_id, &ats)); 2291 } 2292 2293 int 2294 freebsd32_clock_getres(struct thread *td, 2295 struct freebsd32_clock_getres_args *uap) 2296 { 2297 struct timespec ts; 2298 struct timespec32 ts32; 2299 int error; 2300 2301 if (uap->tp == NULL) 2302 return (0); 2303 error = kern_clock_getres(td, uap->clock_id, &ts); 2304 if (error == 0) { 2305 CP(ts, ts32, tv_sec); 2306 CP(ts, ts32, tv_nsec); 2307 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2308 } 2309 return (error); 2310 } 2311 2312 int freebsd32_ktimer_create(struct thread *td, 2313 struct freebsd32_ktimer_create_args *uap) 2314 { 2315 struct sigevent32 ev32; 2316 struct sigevent ev, *evp; 2317 int error, id; 2318 2319 if (uap->evp == NULL) { 2320 evp = NULL; 2321 } else { 2322 evp = &ev; 2323 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2324 if (error != 0) 2325 return (error); 2326 error = convert_sigevent32(&ev32, &ev); 2327 if (error != 0) 2328 return (error); 2329 } 2330 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2331 if (error == 0) { 2332 error = copyout(&id, uap->timerid, sizeof(int)); 2333 if (error != 0) 2334 kern_ktimer_delete(td, id); 2335 } 2336 return (error); 2337 } 2338 2339 int 2340 freebsd32_ktimer_settime(struct thread *td, 2341 struct freebsd32_ktimer_settime_args *uap) 2342 { 2343 struct itimerspec32 val32, oval32; 2344 struct itimerspec val, oval, *ovalp; 2345 int error; 2346 2347 error = copyin(uap->value, &val32, sizeof(val32)); 2348 if (error != 0) 2349 return (error); 2350 ITS_CP(val32, val); 2351 ovalp = uap->ovalue != NULL ? &oval : NULL; 2352 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2353 if (error == 0 && uap->ovalue != NULL) { 2354 ITS_CP(oval, oval32); 2355 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2356 } 2357 return (error); 2358 } 2359 2360 int 2361 freebsd32_ktimer_gettime(struct thread *td, 2362 struct freebsd32_ktimer_gettime_args *uap) 2363 { 2364 struct itimerspec32 val32; 2365 struct itimerspec val; 2366 int error; 2367 2368 error = kern_ktimer_gettime(td, uap->timerid, &val); 2369 if (error == 0) { 2370 ITS_CP(val, val32); 2371 error = copyout(&val32, uap->value, sizeof(val32)); 2372 } 2373 return (error); 2374 } 2375 2376 int 2377 freebsd32_clock_getcpuclockid2(struct thread *td, 2378 struct freebsd32_clock_getcpuclockid2_args *uap) 2379 { 2380 clockid_t clk_id; 2381 int error; 2382 2383 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2384 uap->which, &clk_id); 2385 if (error == 0) 2386 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2387 return (error); 2388 } 2389 2390 int 2391 freebsd32_thr_new(struct thread *td, 2392 struct freebsd32_thr_new_args *uap) 2393 { 2394 struct thr_param32 param32; 2395 struct thr_param param; 2396 int error; 2397 2398 if (uap->param_size < 0 || 2399 uap->param_size > sizeof(struct thr_param32)) 2400 return (EINVAL); 2401 bzero(¶m, sizeof(struct thr_param)); 2402 bzero(¶m32, sizeof(struct thr_param32)); 2403 error = copyin(uap->param, ¶m32, uap->param_size); 2404 if (error != 0) 2405 return (error); 2406 param.start_func = PTRIN(param32.start_func); 2407 param.arg = PTRIN(param32.arg); 2408 param.stack_base = PTRIN(param32.stack_base); 2409 param.stack_size = param32.stack_size; 2410 param.tls_base = PTRIN(param32.tls_base); 2411 param.tls_size = param32.tls_size; 2412 param.child_tid = PTRIN(param32.child_tid); 2413 param.parent_tid = PTRIN(param32.parent_tid); 2414 param.flags = param32.flags; 2415 param.rtp = PTRIN(param32.rtp); 2416 param.spare[0] = PTRIN(param32.spare[0]); 2417 param.spare[1] = PTRIN(param32.spare[1]); 2418 param.spare[2] = PTRIN(param32.spare[2]); 2419 2420 return (kern_thr_new(td, ¶m)); 2421 } 2422 2423 int 2424 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2425 { 2426 struct timespec32 ts32; 2427 struct timespec ts, *tsp; 2428 int error; 2429 2430 error = 0; 2431 tsp = NULL; 2432 if (uap->timeout != NULL) { 2433 error = copyin((const void *)uap->timeout, (void *)&ts32, 2434 sizeof(struct timespec32)); 2435 if (error != 0) 2436 return (error); 2437 ts.tv_sec = ts32.tv_sec; 2438 ts.tv_nsec = ts32.tv_nsec; 2439 tsp = &ts; 2440 } 2441 return (kern_thr_suspend(td, tsp)); 2442 } 2443 2444 void 2445 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2446 { 2447 bzero(dst, sizeof(*dst)); 2448 dst->si_signo = src->si_signo; 2449 dst->si_errno = src->si_errno; 2450 dst->si_code = src->si_code; 2451 dst->si_pid = src->si_pid; 2452 dst->si_uid = src->si_uid; 2453 dst->si_status = src->si_status; 2454 dst->si_addr = (uintptr_t)src->si_addr; 2455 dst->si_value.sival_int = src->si_value.sival_int; 2456 dst->si_timerid = src->si_timerid; 2457 dst->si_overrun = src->si_overrun; 2458 } 2459 2460 int 2461 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2462 { 2463 struct timespec32 ts32; 2464 struct timespec ts; 2465 struct timespec *timeout; 2466 sigset_t set; 2467 ksiginfo_t ksi; 2468 struct siginfo32 si32; 2469 int error; 2470 2471 if (uap->timeout) { 2472 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2473 if (error) 2474 return (error); 2475 ts.tv_sec = ts32.tv_sec; 2476 ts.tv_nsec = ts32.tv_nsec; 2477 timeout = &ts; 2478 } else 2479 timeout = NULL; 2480 2481 error = copyin(uap->set, &set, sizeof(set)); 2482 if (error) 2483 return (error); 2484 2485 error = kern_sigtimedwait(td, set, &ksi, timeout); 2486 if (error) 2487 return (error); 2488 2489 if (uap->info) { 2490 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2491 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2492 } 2493 2494 if (error == 0) 2495 td->td_retval[0] = ksi.ksi_signo; 2496 return (error); 2497 } 2498 2499 /* 2500 * MPSAFE 2501 */ 2502 int 2503 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2504 { 2505 ksiginfo_t ksi; 2506 struct siginfo32 si32; 2507 sigset_t set; 2508 int error; 2509 2510 error = copyin(uap->set, &set, sizeof(set)); 2511 if (error) 2512 return (error); 2513 2514 error = kern_sigtimedwait(td, set, &ksi, NULL); 2515 if (error) 2516 return (error); 2517 2518 if (uap->info) { 2519 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2520 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2521 } 2522 if (error == 0) 2523 td->td_retval[0] = ksi.ksi_signo; 2524 return (error); 2525 } 2526 2527 int 2528 freebsd32_cpuset_setid(struct thread *td, 2529 struct freebsd32_cpuset_setid_args *uap) 2530 { 2531 struct cpuset_setid_args ap; 2532 2533 ap.which = uap->which; 2534 ap.id = PAIR32TO64(id_t,uap->id); 2535 ap.setid = uap->setid; 2536 2537 return (sys_cpuset_setid(td, &ap)); 2538 } 2539 2540 int 2541 freebsd32_cpuset_getid(struct thread *td, 2542 struct freebsd32_cpuset_getid_args *uap) 2543 { 2544 struct cpuset_getid_args ap; 2545 2546 ap.level = uap->level; 2547 ap.which = uap->which; 2548 ap.id = PAIR32TO64(id_t,uap->id); 2549 ap.setid = uap->setid; 2550 2551 return (sys_cpuset_getid(td, &ap)); 2552 } 2553 2554 int 2555 freebsd32_cpuset_getaffinity(struct thread *td, 2556 struct freebsd32_cpuset_getaffinity_args *uap) 2557 { 2558 struct cpuset_getaffinity_args ap; 2559 2560 ap.level = uap->level; 2561 ap.which = uap->which; 2562 ap.id = PAIR32TO64(id_t,uap->id); 2563 ap.cpusetsize = uap->cpusetsize; 2564 ap.mask = uap->mask; 2565 2566 return (sys_cpuset_getaffinity(td, &ap)); 2567 } 2568 2569 int 2570 freebsd32_cpuset_setaffinity(struct thread *td, 2571 struct freebsd32_cpuset_setaffinity_args *uap) 2572 { 2573 struct cpuset_setaffinity_args ap; 2574 2575 ap.level = uap->level; 2576 ap.which = uap->which; 2577 ap.id = PAIR32TO64(id_t,uap->id); 2578 ap.cpusetsize = uap->cpusetsize; 2579 ap.mask = uap->mask; 2580 2581 return (sys_cpuset_setaffinity(td, &ap)); 2582 } 2583 2584 int 2585 freebsd32_nmount(struct thread *td, 2586 struct freebsd32_nmount_args /* { 2587 struct iovec *iovp; 2588 unsigned int iovcnt; 2589 int flags; 2590 } */ *uap) 2591 { 2592 struct uio *auio; 2593 uint64_t flags; 2594 int error; 2595 2596 /* 2597 * Mount flags are now 64-bits. On 32-bit archtectures only 2598 * 32-bits are passed in, but from here on everything handles 2599 * 64-bit flags correctly. 2600 */ 2601 flags = uap->flags; 2602 2603 AUDIT_ARG_FFLAGS(flags); 2604 2605 /* 2606 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2607 * userspace to set this flag, but we must filter it out if we want 2608 * MNT_UPDATE on the root file system to work. 2609 * MNT_ROOTFS should only be set by the kernel when mounting its 2610 * root file system. 2611 */ 2612 flags &= ~MNT_ROOTFS; 2613 2614 /* 2615 * check that we have an even number of iovec's 2616 * and that we have at least two options. 2617 */ 2618 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2619 return (EINVAL); 2620 2621 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2622 if (error) 2623 return (error); 2624 error = vfs_donmount(td, flags, auio); 2625 2626 free(auio, M_IOV); 2627 return error; 2628 } 2629 2630 #if 0 2631 int 2632 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2633 { 2634 struct yyy32 *p32, s32; 2635 struct yyy *p = NULL, s; 2636 struct xxx_arg ap; 2637 int error; 2638 2639 if (uap->zzz) { 2640 error = copyin(uap->zzz, &s32, sizeof(s32)); 2641 if (error) 2642 return (error); 2643 /* translate in */ 2644 p = &s; 2645 } 2646 error = kern_xxx(td, p); 2647 if (error) 2648 return (error); 2649 if (uap->zzz) { 2650 /* translate out */ 2651 error = copyout(&s32, p32, sizeof(s32)); 2652 } 2653 return (error); 2654 } 2655 #endif 2656 2657 int 2658 syscall32_register(int *offset, struct sysent *new_sysent, 2659 struct sysent *old_sysent, int flags) 2660 { 2661 2662 if ((flags & ~SY_THR_STATIC) != 0) 2663 return (EINVAL); 2664 2665 if (*offset == NO_SYSCALL) { 2666 int i; 2667 2668 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2669 if (freebsd32_sysent[i].sy_call == 2670 (sy_call_t *)lkmnosys) 2671 break; 2672 if (i == SYS_MAXSYSCALL) 2673 return (ENFILE); 2674 *offset = i; 2675 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2676 return (EINVAL); 2677 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2678 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2679 return (EEXIST); 2680 2681 *old_sysent = freebsd32_sysent[*offset]; 2682 freebsd32_sysent[*offset] = *new_sysent; 2683 atomic_store_rel_32(&freebsd32_sysent[*offset].sy_thrcnt, flags); 2684 return (0); 2685 } 2686 2687 int 2688 syscall32_deregister(int *offset, struct sysent *old_sysent) 2689 { 2690 2691 if (*offset == 0) 2692 return (0); 2693 2694 freebsd32_sysent[*offset] = *old_sysent; 2695 return (0); 2696 } 2697 2698 int 2699 syscall32_module_handler(struct module *mod, int what, void *arg) 2700 { 2701 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2702 modspecific_t ms; 2703 int error; 2704 2705 switch (what) { 2706 case MOD_LOAD: 2707 error = syscall32_register(data->offset, data->new_sysent, 2708 &data->old_sysent, SY_THR_STATIC_KLD); 2709 if (error) { 2710 /* Leave a mark so we know to safely unload below. */ 2711 data->offset = NULL; 2712 return error; 2713 } 2714 ms.intval = *data->offset; 2715 MOD_XLOCK; 2716 module_setspecific(mod, &ms); 2717 MOD_XUNLOCK; 2718 if (data->chainevh) 2719 error = data->chainevh(mod, what, data->chainarg); 2720 return (error); 2721 case MOD_UNLOAD: 2722 /* 2723 * MOD_LOAD failed, so just return without calling the 2724 * chained handler since we didn't pass along the MOD_LOAD 2725 * event. 2726 */ 2727 if (data->offset == NULL) 2728 return (0); 2729 if (data->chainevh) { 2730 error = data->chainevh(mod, what, data->chainarg); 2731 if (error) 2732 return (error); 2733 } 2734 error = syscall32_deregister(data->offset, &data->old_sysent); 2735 return (error); 2736 default: 2737 error = EOPNOTSUPP; 2738 if (data->chainevh) 2739 error = data->chainevh(mod, what, data->chainarg); 2740 return (error); 2741 } 2742 } 2743 2744 int 2745 syscall32_helper_register(struct syscall_helper_data *sd, int flags) 2746 { 2747 struct syscall_helper_data *sd1; 2748 int error; 2749 2750 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2751 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2752 &sd1->old_sysent, flags); 2753 if (error != 0) { 2754 syscall32_helper_unregister(sd); 2755 return (error); 2756 } 2757 sd1->registered = 1; 2758 } 2759 return (0); 2760 } 2761 2762 int 2763 syscall32_helper_unregister(struct syscall_helper_data *sd) 2764 { 2765 struct syscall_helper_data *sd1; 2766 2767 for (sd1 = sd; sd1->registered != 0; sd1++) { 2768 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2769 sd1->registered = 0; 2770 } 2771 return (0); 2772 } 2773 2774 register_t * 2775 freebsd32_copyout_strings(struct image_params *imgp) 2776 { 2777 int argc, envc, i; 2778 u_int32_t *vectp; 2779 char *stringp; 2780 uintptr_t destp; 2781 u_int32_t *stack_base; 2782 struct freebsd32_ps_strings *arginfo; 2783 char canary[sizeof(long) * 8]; 2784 int32_t pagesizes32[MAXPAGESIZES]; 2785 size_t execpath_len; 2786 int szsigcode; 2787 2788 /* 2789 * Calculate string base and vector table pointers. 2790 * Also deal with signal trampoline code for this exec type. 2791 */ 2792 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2793 execpath_len = strlen(imgp->execpath) + 1; 2794 else 2795 execpath_len = 0; 2796 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2797 sv_psstrings; 2798 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2799 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2800 else 2801 szsigcode = 0; 2802 destp = (uintptr_t)arginfo; 2803 2804 /* 2805 * install sigcode 2806 */ 2807 if (szsigcode != 0) { 2808 destp -= szsigcode; 2809 destp = rounddown2(destp, sizeof(uint32_t)); 2810 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2811 szsigcode); 2812 } 2813 2814 /* 2815 * Copy the image path for the rtld. 2816 */ 2817 if (execpath_len != 0) { 2818 destp -= execpath_len; 2819 imgp->execpathp = destp; 2820 copyout(imgp->execpath, (void *)destp, execpath_len); 2821 } 2822 2823 /* 2824 * Prepare the canary for SSP. 2825 */ 2826 arc4rand(canary, sizeof(canary), 0); 2827 destp -= sizeof(canary); 2828 imgp->canary = destp; 2829 copyout(canary, (void *)destp, sizeof(canary)); 2830 imgp->canarylen = sizeof(canary); 2831 2832 /* 2833 * Prepare the pagesizes array. 2834 */ 2835 for (i = 0; i < MAXPAGESIZES; i++) 2836 pagesizes32[i] = (uint32_t)pagesizes[i]; 2837 destp -= sizeof(pagesizes32); 2838 destp = rounddown2(destp, sizeof(uint32_t)); 2839 imgp->pagesizes = destp; 2840 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2841 imgp->pagesizeslen = sizeof(pagesizes32); 2842 2843 destp -= ARG_MAX - imgp->args->stringspace; 2844 destp = rounddown2(destp, sizeof(uint32_t)); 2845 2846 /* 2847 * If we have a valid auxargs ptr, prepare some room 2848 * on the stack. 2849 */ 2850 if (imgp->auxargs) { 2851 /* 2852 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2853 * lower compatibility. 2854 */ 2855 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2856 : (AT_COUNT * 2); 2857 /* 2858 * The '+ 2' is for the null pointers at the end of each of 2859 * the arg and env vector sets,and imgp->auxarg_size is room 2860 * for argument of Runtime loader. 2861 */ 2862 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2863 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2864 sizeof(u_int32_t)); 2865 } else { 2866 /* 2867 * The '+ 2' is for the null pointers at the end of each of 2868 * the arg and env vector sets 2869 */ 2870 vectp = (u_int32_t *)(destp - (imgp->args->argc + 2871 imgp->args->envc + 2) * sizeof(u_int32_t)); 2872 } 2873 2874 /* 2875 * vectp also becomes our initial stack base 2876 */ 2877 stack_base = vectp; 2878 2879 stringp = imgp->args->begin_argv; 2880 argc = imgp->args->argc; 2881 envc = imgp->args->envc; 2882 /* 2883 * Copy out strings - arguments and environment. 2884 */ 2885 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2886 2887 /* 2888 * Fill in "ps_strings" struct for ps, w, etc. 2889 */ 2890 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2891 suword32(&arginfo->ps_nargvstr, argc); 2892 2893 /* 2894 * Fill in argument portion of vector table. 2895 */ 2896 for (; argc > 0; --argc) { 2897 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2898 while (*stringp++ != 0) 2899 destp++; 2900 destp++; 2901 } 2902 2903 /* a null vector table pointer separates the argp's from the envp's */ 2904 suword32(vectp++, 0); 2905 2906 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2907 suword32(&arginfo->ps_nenvstr, envc); 2908 2909 /* 2910 * Fill in environment portion of vector table. 2911 */ 2912 for (; envc > 0; --envc) { 2913 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2914 while (*stringp++ != 0) 2915 destp++; 2916 destp++; 2917 } 2918 2919 /* end of vector table is a null pointer */ 2920 suword32(vectp, 0); 2921 2922 return ((register_t *)stack_base); 2923 } 2924 2925 int 2926 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2927 { 2928 struct kld_file_stat stat; 2929 struct kld32_file_stat stat32; 2930 int error, version; 2931 2932 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2933 != 0) 2934 return (error); 2935 if (version != sizeof(struct kld32_file_stat_1) && 2936 version != sizeof(struct kld32_file_stat)) 2937 return (EINVAL); 2938 2939 error = kern_kldstat(td, uap->fileid, &stat); 2940 if (error != 0) 2941 return (error); 2942 2943 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name)); 2944 CP(stat, stat32, refs); 2945 CP(stat, stat32, id); 2946 PTROUT_CP(stat, stat32, address); 2947 CP(stat, stat32, size); 2948 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname)); 2949 return (copyout(&stat32, uap->stat, version)); 2950 } 2951 2952 int 2953 freebsd32_posix_fallocate(struct thread *td, 2954 struct freebsd32_posix_fallocate_args *uap) 2955 { 2956 2957 td->td_retval[0] = kern_posix_fallocate(td, uap->fd, 2958 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 2959 return (0); 2960 } 2961 2962 int 2963 freebsd32_posix_fadvise(struct thread *td, 2964 struct freebsd32_posix_fadvise_args *uap) 2965 { 2966 2967 td->td_retval[0] = kern_posix_fadvise(td, uap->fd, 2968 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len), 2969 uap->advice); 2970 return (0); 2971 } 2972 2973 int 2974 convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 2975 { 2976 2977 CP(*sig32, *sig, sigev_notify); 2978 switch (sig->sigev_notify) { 2979 case SIGEV_NONE: 2980 break; 2981 case SIGEV_THREAD_ID: 2982 CP(*sig32, *sig, sigev_notify_thread_id); 2983 /* FALLTHROUGH */ 2984 case SIGEV_SIGNAL: 2985 CP(*sig32, *sig, sigev_signo); 2986 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 2987 break; 2988 case SIGEV_KEVENT: 2989 CP(*sig32, *sig, sigev_notify_kqueue); 2990 CP(*sig32, *sig, sigev_notify_kevent_flags); 2991 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 2992 break; 2993 default: 2994 return (EINVAL); 2995 } 2996 return (0); 2997 } 2998 2999 int 3000 freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3001 { 3002 void *data; 3003 union { 3004 struct procctl_reaper_status rs; 3005 struct procctl_reaper_pids rp; 3006 struct procctl_reaper_kill rk; 3007 } x; 3008 union { 3009 struct procctl_reaper_pids32 rp; 3010 } x32; 3011 int error, error1, flags; 3012 3013 switch (uap->com) { 3014 case PROC_SPROTECT: 3015 case PROC_TRACE_CTL: 3016 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3017 if (error != 0) 3018 return (error); 3019 data = &flags; 3020 break; 3021 case PROC_REAP_ACQUIRE: 3022 case PROC_REAP_RELEASE: 3023 if (uap->data != NULL) 3024 return (EINVAL); 3025 data = NULL; 3026 break; 3027 case PROC_REAP_STATUS: 3028 data = &x.rs; 3029 break; 3030 case PROC_REAP_GETPIDS: 3031 error = copyin(uap->data, &x32.rp, sizeof(x32.rp)); 3032 if (error != 0) 3033 return (error); 3034 CP(x32.rp, x.rp, rp_count); 3035 PTRIN_CP(x32.rp, x.rp, rp_pids); 3036 data = &x.rp; 3037 break; 3038 case PROC_REAP_KILL: 3039 error = copyin(uap->data, &x.rk, sizeof(x.rk)); 3040 if (error != 0) 3041 return (error); 3042 data = &x.rk; 3043 break; 3044 case PROC_TRACE_STATUS: 3045 data = &flags; 3046 break; 3047 default: 3048 return (EINVAL); 3049 } 3050 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3051 uap->com, data); 3052 switch (uap->com) { 3053 case PROC_REAP_STATUS: 3054 if (error == 0) 3055 error = copyout(&x.rs, uap->data, sizeof(x.rs)); 3056 break; 3057 case PROC_REAP_KILL: 3058 error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); 3059 if (error == 0) 3060 error = error1; 3061 break; 3062 case PROC_TRACE_STATUS: 3063 if (error == 0) 3064 error = copyout(&flags, uap->data, sizeof(flags)); 3065 break; 3066 } 3067 return (error); 3068 } 3069 3070 int 3071 freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 3072 { 3073 long tmp; 3074 3075 switch (uap->cmd) { 3076 /* 3077 * Do unsigned conversion for arg when operation 3078 * interprets it as flags or pointer. 3079 */ 3080 case F_SETLK_REMOTE: 3081 case F_SETLKW: 3082 case F_SETLK: 3083 case F_GETLK: 3084 case F_SETFD: 3085 case F_SETFL: 3086 case F_OGETLK: 3087 case F_OSETLK: 3088 case F_OSETLKW: 3089 tmp = (unsigned int)(uap->arg); 3090 break; 3091 default: 3092 tmp = uap->arg; 3093 break; 3094 } 3095 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 3096 } 3097 3098 int 3099 freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap) 3100 { 3101 struct timespec32 ts32; 3102 struct timespec ts, *tsp; 3103 sigset_t set, *ssp; 3104 int error; 3105 3106 if (uap->ts != NULL) { 3107 error = copyin(uap->ts, &ts32, sizeof(ts32)); 3108 if (error != 0) 3109 return (error); 3110 CP(ts32, ts, tv_sec); 3111 CP(ts32, ts, tv_nsec); 3112 tsp = &ts; 3113 } else 3114 tsp = NULL; 3115 if (uap->set != NULL) { 3116 error = copyin(uap->set, &set, sizeof(set)); 3117 if (error != 0) 3118 return (error); 3119 ssp = &set; 3120 } else 3121 ssp = NULL; 3122 3123 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp)); 3124 } 3125