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