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_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1235 } 1236 1237 int 1238 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1239 { 1240 struct timeval32 s32[2]; 1241 struct timeval s[2], *sp; 1242 int error; 1243 1244 if (uap->tptr != NULL) { 1245 error = copyin(uap->tptr, s32, sizeof(s32)); 1246 if (error) 1247 return (error); 1248 CP(s32[0], s[0], tv_sec); 1249 CP(s32[0], s[0], tv_usec); 1250 CP(s32[1], s[1], tv_sec); 1251 CP(s32[1], s[1], tv_usec); 1252 sp = s; 1253 } else 1254 sp = NULL; 1255 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1256 } 1257 1258 int 1259 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1260 { 1261 struct timeval32 s32[2]; 1262 struct timeval s[2], *sp; 1263 int error; 1264 1265 if (uap->tptr != NULL) { 1266 error = copyin(uap->tptr, s32, sizeof(s32)); 1267 if (error) 1268 return (error); 1269 CP(s32[0], s[0], tv_sec); 1270 CP(s32[0], s[0], tv_usec); 1271 CP(s32[1], s[1], tv_sec); 1272 CP(s32[1], s[1], tv_usec); 1273 sp = s; 1274 } else 1275 sp = NULL; 1276 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1277 } 1278 1279 int 1280 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1281 { 1282 struct timeval32 s32[2]; 1283 struct timeval s[2], *sp; 1284 int error; 1285 1286 if (uap->times != NULL) { 1287 error = copyin(uap->times, s32, sizeof(s32)); 1288 if (error) 1289 return (error); 1290 CP(s32[0], s[0], tv_sec); 1291 CP(s32[0], s[0], tv_usec); 1292 CP(s32[1], s[1], tv_sec); 1293 CP(s32[1], s[1], tv_usec); 1294 sp = s; 1295 } else 1296 sp = NULL; 1297 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1298 sp, UIO_SYSSPACE)); 1299 } 1300 1301 int 1302 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1303 { 1304 struct timeval32 tv32; 1305 struct timeval delta, olddelta, *deltap; 1306 int error; 1307 1308 if (uap->delta) { 1309 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1310 if (error) 1311 return (error); 1312 CP(tv32, delta, tv_sec); 1313 CP(tv32, delta, tv_usec); 1314 deltap = δ 1315 } else 1316 deltap = NULL; 1317 error = kern_adjtime(td, deltap, &olddelta); 1318 if (uap->olddelta && error == 0) { 1319 CP(olddelta, tv32, tv_sec); 1320 CP(olddelta, tv32, tv_usec); 1321 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1322 } 1323 return (error); 1324 } 1325 1326 #ifdef COMPAT_FREEBSD4 1327 int 1328 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1329 { 1330 struct statfs32 s32; 1331 struct statfs s; 1332 int error; 1333 1334 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1335 if (error) 1336 return (error); 1337 copy_statfs(&s, &s32); 1338 return (copyout(&s32, uap->buf, sizeof(s32))); 1339 } 1340 #endif 1341 1342 #ifdef COMPAT_FREEBSD4 1343 int 1344 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1345 { 1346 struct statfs32 s32; 1347 struct statfs s; 1348 int error; 1349 1350 error = kern_fstatfs(td, uap->fd, &s); 1351 if (error) 1352 return (error); 1353 copy_statfs(&s, &s32); 1354 return (copyout(&s32, uap->buf, sizeof(s32))); 1355 } 1356 #endif 1357 1358 #ifdef COMPAT_FREEBSD4 1359 int 1360 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1361 { 1362 struct statfs32 s32; 1363 struct statfs s; 1364 fhandle_t fh; 1365 int error; 1366 1367 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1368 return (error); 1369 error = kern_fhstatfs(td, fh, &s); 1370 if (error) 1371 return (error); 1372 copy_statfs(&s, &s32); 1373 return (copyout(&s32, uap->buf, sizeof(s32))); 1374 } 1375 #endif 1376 1377 int 1378 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1379 { 1380 struct pread_args ap; 1381 1382 ap.fd = uap->fd; 1383 ap.buf = uap->buf; 1384 ap.nbyte = uap->nbyte; 1385 ap.offset = PAIR32TO64(off_t,uap->offset); 1386 return (sys_pread(td, &ap)); 1387 } 1388 1389 int 1390 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1391 { 1392 struct pwrite_args ap; 1393 1394 ap.fd = uap->fd; 1395 ap.buf = uap->buf; 1396 ap.nbyte = uap->nbyte; 1397 ap.offset = PAIR32TO64(off_t,uap->offset); 1398 return (sys_pwrite(td, &ap)); 1399 } 1400 1401 #ifdef COMPAT_43 1402 int 1403 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1404 { 1405 struct lseek_args nuap; 1406 1407 nuap.fd = uap->fd; 1408 nuap.offset = uap->offset; 1409 nuap.whence = uap->whence; 1410 return (sys_lseek(td, &nuap)); 1411 } 1412 #endif 1413 1414 int 1415 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1416 { 1417 int error; 1418 struct lseek_args ap; 1419 off_t pos; 1420 1421 ap.fd = uap->fd; 1422 ap.offset = PAIR32TO64(off_t,uap->offset); 1423 ap.whence = uap->whence; 1424 error = sys_lseek(td, &ap); 1425 /* Expand the quad return into two parts for eax and edx */ 1426 pos = td->td_uretoff.tdu_off; 1427 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1428 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1429 return error; 1430 } 1431 1432 int 1433 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1434 { 1435 struct truncate_args ap; 1436 1437 ap.path = uap->path; 1438 ap.length = PAIR32TO64(off_t,uap->length); 1439 return (sys_truncate(td, &ap)); 1440 } 1441 1442 int 1443 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1444 { 1445 struct ftruncate_args ap; 1446 1447 ap.fd = uap->fd; 1448 ap.length = PAIR32TO64(off_t,uap->length); 1449 return (sys_ftruncate(td, &ap)); 1450 } 1451 1452 #ifdef COMPAT_43 1453 int 1454 ofreebsd32_getdirentries(struct thread *td, 1455 struct ofreebsd32_getdirentries_args *uap) 1456 { 1457 struct ogetdirentries_args ap; 1458 int error; 1459 long loff; 1460 int32_t loff_cut; 1461 1462 ap.fd = uap->fd; 1463 ap.buf = uap->buf; 1464 ap.count = uap->count; 1465 ap.basep = NULL; 1466 error = kern_ogetdirentries(td, &ap, &loff); 1467 if (error == 0) { 1468 loff_cut = loff; 1469 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1470 } 1471 return (error); 1472 } 1473 #endif 1474 1475 int 1476 freebsd32_getdirentries(struct thread *td, 1477 struct freebsd32_getdirentries_args *uap) 1478 { 1479 long base; 1480 int32_t base32; 1481 int error; 1482 1483 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1484 NULL, UIO_USERSPACE); 1485 if (error) 1486 return (error); 1487 if (uap->basep != NULL) { 1488 base32 = base; 1489 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1490 } 1491 return (error); 1492 } 1493 1494 #ifdef COMPAT_FREEBSD6 1495 /* versions with the 'int pad' argument */ 1496 int 1497 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1498 { 1499 struct pread_args ap; 1500 1501 ap.fd = uap->fd; 1502 ap.buf = uap->buf; 1503 ap.nbyte = uap->nbyte; 1504 ap.offset = PAIR32TO64(off_t,uap->offset); 1505 return (sys_pread(td, &ap)); 1506 } 1507 1508 int 1509 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1510 { 1511 struct pwrite_args ap; 1512 1513 ap.fd = uap->fd; 1514 ap.buf = uap->buf; 1515 ap.nbyte = uap->nbyte; 1516 ap.offset = PAIR32TO64(off_t,uap->offset); 1517 return (sys_pwrite(td, &ap)); 1518 } 1519 1520 int 1521 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1522 { 1523 int error; 1524 struct lseek_args ap; 1525 off_t pos; 1526 1527 ap.fd = uap->fd; 1528 ap.offset = PAIR32TO64(off_t,uap->offset); 1529 ap.whence = uap->whence; 1530 error = sys_lseek(td, &ap); 1531 /* Expand the quad return into two parts for eax and edx */ 1532 pos = *(off_t *)(td->td_retval); 1533 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1534 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1535 return error; 1536 } 1537 1538 int 1539 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1540 { 1541 struct truncate_args ap; 1542 1543 ap.path = uap->path; 1544 ap.length = PAIR32TO64(off_t,uap->length); 1545 return (sys_truncate(td, &ap)); 1546 } 1547 1548 int 1549 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1550 { 1551 struct ftruncate_args ap; 1552 1553 ap.fd = uap->fd; 1554 ap.length = PAIR32TO64(off_t,uap->length); 1555 return (sys_ftruncate(td, &ap)); 1556 } 1557 #endif /* COMPAT_FREEBSD6 */ 1558 1559 struct sf_hdtr32 { 1560 uint32_t headers; 1561 int hdr_cnt; 1562 uint32_t trailers; 1563 int trl_cnt; 1564 }; 1565 1566 static int 1567 freebsd32_do_sendfile(struct thread *td, 1568 struct freebsd32_sendfile_args *uap, int compat) 1569 { 1570 struct sf_hdtr32 hdtr32; 1571 struct sf_hdtr hdtr; 1572 struct uio *hdr_uio, *trl_uio; 1573 struct file *fp; 1574 cap_rights_t rights; 1575 struct iovec32 *iov32; 1576 off_t offset, sbytes; 1577 int error; 1578 1579 offset = PAIR32TO64(off_t, uap->offset); 1580 if (offset < 0) 1581 return (EINVAL); 1582 1583 hdr_uio = trl_uio = NULL; 1584 1585 if (uap->hdtr != NULL) { 1586 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1587 if (error) 1588 goto out; 1589 PTRIN_CP(hdtr32, hdtr, headers); 1590 CP(hdtr32, hdtr, hdr_cnt); 1591 PTRIN_CP(hdtr32, hdtr, trailers); 1592 CP(hdtr32, hdtr, trl_cnt); 1593 1594 if (hdtr.headers != NULL) { 1595 iov32 = PTRIN(hdtr32.headers); 1596 error = freebsd32_copyinuio(iov32, 1597 hdtr32.hdr_cnt, &hdr_uio); 1598 if (error) 1599 goto out; 1600 } 1601 if (hdtr.trailers != NULL) { 1602 iov32 = PTRIN(hdtr32.trailers); 1603 error = freebsd32_copyinuio(iov32, 1604 hdtr32.trl_cnt, &trl_uio); 1605 if (error) 1606 goto out; 1607 } 1608 } 1609 1610 AUDIT_ARG_FD(uap->fd); 1611 1612 if ((error = fget_read(td, uap->fd, 1613 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) 1614 goto out; 1615 1616 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1617 uap->nbytes, &sbytes, uap->flags, compat ? SFK_COMPAT : 0, td); 1618 fdrop(fp, td); 1619 1620 if (uap->sbytes != NULL) 1621 copyout(&sbytes, uap->sbytes, sizeof(off_t)); 1622 1623 out: 1624 if (hdr_uio) 1625 free(hdr_uio, M_IOV); 1626 if (trl_uio) 1627 free(trl_uio, M_IOV); 1628 return (error); 1629 } 1630 1631 #ifdef COMPAT_FREEBSD4 1632 int 1633 freebsd4_freebsd32_sendfile(struct thread *td, 1634 struct freebsd4_freebsd32_sendfile_args *uap) 1635 { 1636 return (freebsd32_do_sendfile(td, 1637 (struct freebsd32_sendfile_args *)uap, 1)); 1638 } 1639 #endif 1640 1641 int 1642 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1643 { 1644 1645 return (freebsd32_do_sendfile(td, uap, 0)); 1646 } 1647 1648 static void 1649 copy_stat(struct stat *in, struct stat32 *out) 1650 { 1651 1652 CP(*in, *out, st_dev); 1653 CP(*in, *out, st_ino); 1654 CP(*in, *out, st_mode); 1655 CP(*in, *out, st_nlink); 1656 CP(*in, *out, st_uid); 1657 CP(*in, *out, st_gid); 1658 CP(*in, *out, st_rdev); 1659 TS_CP(*in, *out, st_atim); 1660 TS_CP(*in, *out, st_mtim); 1661 TS_CP(*in, *out, st_ctim); 1662 CP(*in, *out, st_size); 1663 CP(*in, *out, st_blocks); 1664 CP(*in, *out, st_blksize); 1665 CP(*in, *out, st_flags); 1666 CP(*in, *out, st_gen); 1667 TS_CP(*in, *out, st_birthtim); 1668 } 1669 1670 #ifdef COMPAT_43 1671 static void 1672 copy_ostat(struct stat *in, struct ostat32 *out) 1673 { 1674 1675 CP(*in, *out, st_dev); 1676 CP(*in, *out, st_ino); 1677 CP(*in, *out, st_mode); 1678 CP(*in, *out, st_nlink); 1679 CP(*in, *out, st_uid); 1680 CP(*in, *out, st_gid); 1681 CP(*in, *out, st_rdev); 1682 CP(*in, *out, st_size); 1683 TS_CP(*in, *out, st_atim); 1684 TS_CP(*in, *out, st_mtim); 1685 TS_CP(*in, *out, st_ctim); 1686 CP(*in, *out, st_blksize); 1687 CP(*in, *out, st_blocks); 1688 CP(*in, *out, st_flags); 1689 CP(*in, *out, st_gen); 1690 } 1691 #endif 1692 1693 int 1694 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1695 { 1696 struct stat sb; 1697 struct stat32 sb32; 1698 int error; 1699 1700 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1701 if (error) 1702 return (error); 1703 copy_stat(&sb, &sb32); 1704 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1705 return (error); 1706 } 1707 1708 #ifdef COMPAT_43 1709 int 1710 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1711 { 1712 struct stat sb; 1713 struct ostat32 sb32; 1714 int error; 1715 1716 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1717 if (error) 1718 return (error); 1719 copy_ostat(&sb, &sb32); 1720 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1721 return (error); 1722 } 1723 #endif 1724 1725 int 1726 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1727 { 1728 struct stat ub; 1729 struct stat32 ub32; 1730 int error; 1731 1732 error = kern_fstat(td, uap->fd, &ub); 1733 if (error) 1734 return (error); 1735 copy_stat(&ub, &ub32); 1736 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1737 return (error); 1738 } 1739 1740 #ifdef COMPAT_43 1741 int 1742 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1743 { 1744 struct stat ub; 1745 struct ostat32 ub32; 1746 int error; 1747 1748 error = kern_fstat(td, uap->fd, &ub); 1749 if (error) 1750 return (error); 1751 copy_ostat(&ub, &ub32); 1752 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1753 return (error); 1754 } 1755 #endif 1756 1757 int 1758 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1759 { 1760 struct stat ub; 1761 struct stat32 ub32; 1762 int error; 1763 1764 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1765 if (error) 1766 return (error); 1767 copy_stat(&ub, &ub32); 1768 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1769 return (error); 1770 } 1771 1772 int 1773 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1774 { 1775 struct stat sb; 1776 struct stat32 sb32; 1777 int error; 1778 1779 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1780 if (error) 1781 return (error); 1782 copy_stat(&sb, &sb32); 1783 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1784 return (error); 1785 } 1786 1787 #ifdef COMPAT_43 1788 int 1789 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1790 { 1791 struct stat sb; 1792 struct ostat32 sb32; 1793 int error; 1794 1795 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1796 if (error) 1797 return (error); 1798 copy_ostat(&sb, &sb32); 1799 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1800 return (error); 1801 } 1802 #endif 1803 1804 int 1805 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1806 { 1807 int error, name[CTL_MAXNAME]; 1808 size_t j, oldlen; 1809 uint32_t tmp; 1810 1811 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1812 return (EINVAL); 1813 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1814 if (error) 1815 return (error); 1816 if (uap->oldlenp) { 1817 error = fueword32(uap->oldlenp, &tmp); 1818 oldlen = tmp; 1819 } else { 1820 oldlen = 0; 1821 } 1822 if (error != 0) 1823 return (EFAULT); 1824 error = userland_sysctl(td, name, uap->namelen, 1825 uap->old, &oldlen, 1, 1826 uap->new, uap->newlen, &j, SCTL_MASK32); 1827 if (error && error != ENOMEM) 1828 return (error); 1829 if (uap->oldlenp) 1830 suword32(uap->oldlenp, j); 1831 return (0); 1832 } 1833 1834 int 1835 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1836 { 1837 uint32_t version; 1838 int error; 1839 struct jail j; 1840 1841 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1842 if (error) 1843 return (error); 1844 1845 switch (version) { 1846 case 0: 1847 { 1848 /* FreeBSD single IPv4 jails. */ 1849 struct jail32_v0 j32_v0; 1850 1851 bzero(&j, sizeof(struct jail)); 1852 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1853 if (error) 1854 return (error); 1855 CP(j32_v0, j, version); 1856 PTRIN_CP(j32_v0, j, path); 1857 PTRIN_CP(j32_v0, j, hostname); 1858 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1859 break; 1860 } 1861 1862 case 1: 1863 /* 1864 * Version 1 was used by multi-IPv4 jail implementations 1865 * that never made it into the official kernel. 1866 */ 1867 return (EINVAL); 1868 1869 case 2: /* JAIL_API_VERSION */ 1870 { 1871 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1872 struct jail32 j32; 1873 1874 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1875 if (error) 1876 return (error); 1877 CP(j32, j, version); 1878 PTRIN_CP(j32, j, path); 1879 PTRIN_CP(j32, j, hostname); 1880 PTRIN_CP(j32, j, jailname); 1881 CP(j32, j, ip4s); 1882 CP(j32, j, ip6s); 1883 PTRIN_CP(j32, j, ip4); 1884 PTRIN_CP(j32, j, ip6); 1885 break; 1886 } 1887 1888 default: 1889 /* Sci-Fi jails are not supported, sorry. */ 1890 return (EINVAL); 1891 } 1892 return (kern_jail(td, &j)); 1893 } 1894 1895 int 1896 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1897 { 1898 struct uio *auio; 1899 int error; 1900 1901 /* Check that we have an even number of iovecs. */ 1902 if (uap->iovcnt & 1) 1903 return (EINVAL); 1904 1905 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1906 if (error) 1907 return (error); 1908 error = kern_jail_set(td, auio, uap->flags); 1909 free(auio, M_IOV); 1910 return (error); 1911 } 1912 1913 int 1914 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1915 { 1916 struct iovec32 iov32; 1917 struct uio *auio; 1918 int error, i; 1919 1920 /* Check that we have an even number of iovecs. */ 1921 if (uap->iovcnt & 1) 1922 return (EINVAL); 1923 1924 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1925 if (error) 1926 return (error); 1927 error = kern_jail_get(td, auio, uap->flags); 1928 if (error == 0) 1929 for (i = 0; i < uap->iovcnt; i++) { 1930 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1931 CP(auio->uio_iov[i], iov32, iov_len); 1932 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1933 if (error != 0) 1934 break; 1935 } 1936 free(auio, M_IOV); 1937 return (error); 1938 } 1939 1940 int 1941 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1942 { 1943 struct sigaction32 s32; 1944 struct sigaction sa, osa, *sap; 1945 int error; 1946 1947 if (uap->act) { 1948 error = copyin(uap->act, &s32, sizeof(s32)); 1949 if (error) 1950 return (error); 1951 sa.sa_handler = PTRIN(s32.sa_u); 1952 CP(s32, sa, sa_flags); 1953 CP(s32, sa, sa_mask); 1954 sap = &sa; 1955 } else 1956 sap = NULL; 1957 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 1958 if (error == 0 && uap->oact != NULL) { 1959 s32.sa_u = PTROUT(osa.sa_handler); 1960 CP(osa, s32, sa_flags); 1961 CP(osa, s32, sa_mask); 1962 error = copyout(&s32, uap->oact, sizeof(s32)); 1963 } 1964 return (error); 1965 } 1966 1967 #ifdef COMPAT_FREEBSD4 1968 int 1969 freebsd4_freebsd32_sigaction(struct thread *td, 1970 struct freebsd4_freebsd32_sigaction_args *uap) 1971 { 1972 struct sigaction32 s32; 1973 struct sigaction sa, osa, *sap; 1974 int error; 1975 1976 if (uap->act) { 1977 error = copyin(uap->act, &s32, sizeof(s32)); 1978 if (error) 1979 return (error); 1980 sa.sa_handler = PTRIN(s32.sa_u); 1981 CP(s32, sa, sa_flags); 1982 CP(s32, sa, sa_mask); 1983 sap = &sa; 1984 } else 1985 sap = NULL; 1986 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 1987 if (error == 0 && uap->oact != NULL) { 1988 s32.sa_u = PTROUT(osa.sa_handler); 1989 CP(osa, s32, sa_flags); 1990 CP(osa, s32, sa_mask); 1991 error = copyout(&s32, uap->oact, sizeof(s32)); 1992 } 1993 return (error); 1994 } 1995 #endif 1996 1997 #ifdef COMPAT_43 1998 struct osigaction32 { 1999 u_int32_t sa_u; 2000 osigset_t sa_mask; 2001 int sa_flags; 2002 }; 2003 2004 #define ONSIG 32 2005 2006 int 2007 ofreebsd32_sigaction(struct thread *td, 2008 struct ofreebsd32_sigaction_args *uap) 2009 { 2010 struct osigaction32 s32; 2011 struct sigaction sa, osa, *sap; 2012 int error; 2013 2014 if (uap->signum <= 0 || uap->signum >= ONSIG) 2015 return (EINVAL); 2016 2017 if (uap->nsa) { 2018 error = copyin(uap->nsa, &s32, sizeof(s32)); 2019 if (error) 2020 return (error); 2021 sa.sa_handler = PTRIN(s32.sa_u); 2022 CP(s32, sa, sa_flags); 2023 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2024 sap = &sa; 2025 } else 2026 sap = NULL; 2027 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2028 if (error == 0 && uap->osa != NULL) { 2029 s32.sa_u = PTROUT(osa.sa_handler); 2030 CP(osa, s32, sa_flags); 2031 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2032 error = copyout(&s32, uap->osa, sizeof(s32)); 2033 } 2034 return (error); 2035 } 2036 2037 int 2038 ofreebsd32_sigprocmask(struct thread *td, 2039 struct ofreebsd32_sigprocmask_args *uap) 2040 { 2041 sigset_t set, oset; 2042 int error; 2043 2044 OSIG2SIG(uap->mask, set); 2045 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2046 SIG2OSIG(oset, td->td_retval[0]); 2047 return (error); 2048 } 2049 2050 int 2051 ofreebsd32_sigpending(struct thread *td, 2052 struct ofreebsd32_sigpending_args *uap) 2053 { 2054 struct proc *p = td->td_proc; 2055 sigset_t siglist; 2056 2057 PROC_LOCK(p); 2058 siglist = p->p_siglist; 2059 SIGSETOR(siglist, td->td_siglist); 2060 PROC_UNLOCK(p); 2061 SIG2OSIG(siglist, td->td_retval[0]); 2062 return (0); 2063 } 2064 2065 struct sigvec32 { 2066 u_int32_t sv_handler; 2067 int sv_mask; 2068 int sv_flags; 2069 }; 2070 2071 int 2072 ofreebsd32_sigvec(struct thread *td, 2073 struct ofreebsd32_sigvec_args *uap) 2074 { 2075 struct sigvec32 vec; 2076 struct sigaction sa, osa, *sap; 2077 int error; 2078 2079 if (uap->signum <= 0 || uap->signum >= ONSIG) 2080 return (EINVAL); 2081 2082 if (uap->nsv) { 2083 error = copyin(uap->nsv, &vec, sizeof(vec)); 2084 if (error) 2085 return (error); 2086 sa.sa_handler = PTRIN(vec.sv_handler); 2087 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2088 sa.sa_flags = vec.sv_flags; 2089 sa.sa_flags ^= SA_RESTART; 2090 sap = &sa; 2091 } else 2092 sap = NULL; 2093 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2094 if (error == 0 && uap->osv != NULL) { 2095 vec.sv_handler = PTROUT(osa.sa_handler); 2096 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2097 vec.sv_flags = osa.sa_flags; 2098 vec.sv_flags &= ~SA_NOCLDWAIT; 2099 vec.sv_flags ^= SA_RESTART; 2100 error = copyout(&vec, uap->osv, sizeof(vec)); 2101 } 2102 return (error); 2103 } 2104 2105 int 2106 ofreebsd32_sigblock(struct thread *td, 2107 struct ofreebsd32_sigblock_args *uap) 2108 { 2109 sigset_t set, oset; 2110 2111 OSIG2SIG(uap->mask, set); 2112 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2113 SIG2OSIG(oset, td->td_retval[0]); 2114 return (0); 2115 } 2116 2117 int 2118 ofreebsd32_sigsetmask(struct thread *td, 2119 struct ofreebsd32_sigsetmask_args *uap) 2120 { 2121 sigset_t set, oset; 2122 2123 OSIG2SIG(uap->mask, set); 2124 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2125 SIG2OSIG(oset, td->td_retval[0]); 2126 return (0); 2127 } 2128 2129 int 2130 ofreebsd32_sigsuspend(struct thread *td, 2131 struct ofreebsd32_sigsuspend_args *uap) 2132 { 2133 sigset_t mask; 2134 2135 OSIG2SIG(uap->mask, mask); 2136 return (kern_sigsuspend(td, mask)); 2137 } 2138 2139 struct sigstack32 { 2140 u_int32_t ss_sp; 2141 int ss_onstack; 2142 }; 2143 2144 int 2145 ofreebsd32_sigstack(struct thread *td, 2146 struct ofreebsd32_sigstack_args *uap) 2147 { 2148 struct sigstack32 s32; 2149 struct sigstack nss, oss; 2150 int error = 0, unss; 2151 2152 if (uap->nss != NULL) { 2153 error = copyin(uap->nss, &s32, sizeof(s32)); 2154 if (error) 2155 return (error); 2156 nss.ss_sp = PTRIN(s32.ss_sp); 2157 CP(s32, nss, ss_onstack); 2158 unss = 1; 2159 } else { 2160 unss = 0; 2161 } 2162 oss.ss_sp = td->td_sigstk.ss_sp; 2163 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2164 if (unss) { 2165 td->td_sigstk.ss_sp = nss.ss_sp; 2166 td->td_sigstk.ss_size = 0; 2167 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2168 td->td_pflags |= TDP_ALTSTACK; 2169 } 2170 if (uap->oss != NULL) { 2171 s32.ss_sp = PTROUT(oss.ss_sp); 2172 CP(oss, s32, ss_onstack); 2173 error = copyout(&s32, uap->oss, sizeof(s32)); 2174 } 2175 return (error); 2176 } 2177 #endif 2178 2179 int 2180 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2181 { 2182 struct timespec32 rmt32, rqt32; 2183 struct timespec rmt, rqt; 2184 int error; 2185 2186 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2187 if (error) 2188 return (error); 2189 2190 CP(rqt32, rqt, tv_sec); 2191 CP(rqt32, rqt, tv_nsec); 2192 2193 if (uap->rmtp && 2194 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2195 return (EFAULT); 2196 error = kern_nanosleep(td, &rqt, &rmt); 2197 if (error && uap->rmtp) { 2198 int error2; 2199 2200 CP(rmt, rmt32, tv_sec); 2201 CP(rmt, rmt32, tv_nsec); 2202 2203 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2204 if (error2) 2205 error = error2; 2206 } 2207 return (error); 2208 } 2209 2210 int 2211 freebsd32_clock_gettime(struct thread *td, 2212 struct freebsd32_clock_gettime_args *uap) 2213 { 2214 struct timespec ats; 2215 struct timespec32 ats32; 2216 int error; 2217 2218 error = kern_clock_gettime(td, uap->clock_id, &ats); 2219 if (error == 0) { 2220 CP(ats, ats32, tv_sec); 2221 CP(ats, ats32, tv_nsec); 2222 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2223 } 2224 return (error); 2225 } 2226 2227 int 2228 freebsd32_clock_settime(struct thread *td, 2229 struct freebsd32_clock_settime_args *uap) 2230 { 2231 struct timespec ats; 2232 struct timespec32 ats32; 2233 int error; 2234 2235 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2236 if (error) 2237 return (error); 2238 CP(ats32, ats, tv_sec); 2239 CP(ats32, ats, tv_nsec); 2240 2241 return (kern_clock_settime(td, uap->clock_id, &ats)); 2242 } 2243 2244 int 2245 freebsd32_clock_getres(struct thread *td, 2246 struct freebsd32_clock_getres_args *uap) 2247 { 2248 struct timespec ts; 2249 struct timespec32 ts32; 2250 int error; 2251 2252 if (uap->tp == NULL) 2253 return (0); 2254 error = kern_clock_getres(td, uap->clock_id, &ts); 2255 if (error == 0) { 2256 CP(ts, ts32, tv_sec); 2257 CP(ts, ts32, tv_nsec); 2258 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2259 } 2260 return (error); 2261 } 2262 2263 int freebsd32_ktimer_create(struct thread *td, 2264 struct freebsd32_ktimer_create_args *uap) 2265 { 2266 struct sigevent32 ev32; 2267 struct sigevent ev, *evp; 2268 int error, id; 2269 2270 if (uap->evp == NULL) { 2271 evp = NULL; 2272 } else { 2273 evp = &ev; 2274 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2275 if (error != 0) 2276 return (error); 2277 error = convert_sigevent32(&ev32, &ev); 2278 if (error != 0) 2279 return (error); 2280 } 2281 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2282 if (error == 0) { 2283 error = copyout(&id, uap->timerid, sizeof(int)); 2284 if (error != 0) 2285 kern_ktimer_delete(td, id); 2286 } 2287 return (error); 2288 } 2289 2290 int 2291 freebsd32_ktimer_settime(struct thread *td, 2292 struct freebsd32_ktimer_settime_args *uap) 2293 { 2294 struct itimerspec32 val32, oval32; 2295 struct itimerspec val, oval, *ovalp; 2296 int error; 2297 2298 error = copyin(uap->value, &val32, sizeof(val32)); 2299 if (error != 0) 2300 return (error); 2301 ITS_CP(val32, val); 2302 ovalp = uap->ovalue != NULL ? &oval : NULL; 2303 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2304 if (error == 0 && uap->ovalue != NULL) { 2305 ITS_CP(oval, oval32); 2306 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2307 } 2308 return (error); 2309 } 2310 2311 int 2312 freebsd32_ktimer_gettime(struct thread *td, 2313 struct freebsd32_ktimer_gettime_args *uap) 2314 { 2315 struct itimerspec32 val32; 2316 struct itimerspec val; 2317 int error; 2318 2319 error = kern_ktimer_gettime(td, uap->timerid, &val); 2320 if (error == 0) { 2321 ITS_CP(val, val32); 2322 error = copyout(&val32, uap->value, sizeof(val32)); 2323 } 2324 return (error); 2325 } 2326 2327 int 2328 freebsd32_clock_getcpuclockid2(struct thread *td, 2329 struct freebsd32_clock_getcpuclockid2_args *uap) 2330 { 2331 clockid_t clk_id; 2332 int error; 2333 2334 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2335 uap->which, &clk_id); 2336 if (error == 0) 2337 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2338 return (error); 2339 } 2340 2341 int 2342 freebsd32_thr_new(struct thread *td, 2343 struct freebsd32_thr_new_args *uap) 2344 { 2345 struct thr_param32 param32; 2346 struct thr_param param; 2347 int error; 2348 2349 if (uap->param_size < 0 || 2350 uap->param_size > sizeof(struct thr_param32)) 2351 return (EINVAL); 2352 bzero(¶m, sizeof(struct thr_param)); 2353 bzero(¶m32, sizeof(struct thr_param32)); 2354 error = copyin(uap->param, ¶m32, uap->param_size); 2355 if (error != 0) 2356 return (error); 2357 param.start_func = PTRIN(param32.start_func); 2358 param.arg = PTRIN(param32.arg); 2359 param.stack_base = PTRIN(param32.stack_base); 2360 param.stack_size = param32.stack_size; 2361 param.tls_base = PTRIN(param32.tls_base); 2362 param.tls_size = param32.tls_size; 2363 param.child_tid = PTRIN(param32.child_tid); 2364 param.parent_tid = PTRIN(param32.parent_tid); 2365 param.flags = param32.flags; 2366 param.rtp = PTRIN(param32.rtp); 2367 param.spare[0] = PTRIN(param32.spare[0]); 2368 param.spare[1] = PTRIN(param32.spare[1]); 2369 param.spare[2] = PTRIN(param32.spare[2]); 2370 2371 return (kern_thr_new(td, ¶m)); 2372 } 2373 2374 int 2375 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2376 { 2377 struct timespec32 ts32; 2378 struct timespec ts, *tsp; 2379 int error; 2380 2381 error = 0; 2382 tsp = NULL; 2383 if (uap->timeout != NULL) { 2384 error = copyin((const void *)uap->timeout, (void *)&ts32, 2385 sizeof(struct timespec32)); 2386 if (error != 0) 2387 return (error); 2388 ts.tv_sec = ts32.tv_sec; 2389 ts.tv_nsec = ts32.tv_nsec; 2390 tsp = &ts; 2391 } 2392 return (kern_thr_suspend(td, tsp)); 2393 } 2394 2395 void 2396 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2397 { 2398 bzero(dst, sizeof(*dst)); 2399 dst->si_signo = src->si_signo; 2400 dst->si_errno = src->si_errno; 2401 dst->si_code = src->si_code; 2402 dst->si_pid = src->si_pid; 2403 dst->si_uid = src->si_uid; 2404 dst->si_status = src->si_status; 2405 dst->si_addr = (uintptr_t)src->si_addr; 2406 dst->si_value.sival_int = src->si_value.sival_int; 2407 dst->si_timerid = src->si_timerid; 2408 dst->si_overrun = src->si_overrun; 2409 } 2410 2411 int 2412 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2413 { 2414 struct timespec32 ts32; 2415 struct timespec ts; 2416 struct timespec *timeout; 2417 sigset_t set; 2418 ksiginfo_t ksi; 2419 struct siginfo32 si32; 2420 int error; 2421 2422 if (uap->timeout) { 2423 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2424 if (error) 2425 return (error); 2426 ts.tv_sec = ts32.tv_sec; 2427 ts.tv_nsec = ts32.tv_nsec; 2428 timeout = &ts; 2429 } else 2430 timeout = NULL; 2431 2432 error = copyin(uap->set, &set, sizeof(set)); 2433 if (error) 2434 return (error); 2435 2436 error = kern_sigtimedwait(td, set, &ksi, timeout); 2437 if (error) 2438 return (error); 2439 2440 if (uap->info) { 2441 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2442 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2443 } 2444 2445 if (error == 0) 2446 td->td_retval[0] = ksi.ksi_signo; 2447 return (error); 2448 } 2449 2450 /* 2451 * MPSAFE 2452 */ 2453 int 2454 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2455 { 2456 ksiginfo_t ksi; 2457 struct siginfo32 si32; 2458 sigset_t set; 2459 int error; 2460 2461 error = copyin(uap->set, &set, sizeof(set)); 2462 if (error) 2463 return (error); 2464 2465 error = kern_sigtimedwait(td, set, &ksi, NULL); 2466 if (error) 2467 return (error); 2468 2469 if (uap->info) { 2470 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2471 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2472 } 2473 if (error == 0) 2474 td->td_retval[0] = ksi.ksi_signo; 2475 return (error); 2476 } 2477 2478 int 2479 freebsd32_cpuset_setid(struct thread *td, 2480 struct freebsd32_cpuset_setid_args *uap) 2481 { 2482 struct cpuset_setid_args ap; 2483 2484 ap.which = uap->which; 2485 ap.id = PAIR32TO64(id_t,uap->id); 2486 ap.setid = uap->setid; 2487 2488 return (sys_cpuset_setid(td, &ap)); 2489 } 2490 2491 int 2492 freebsd32_cpuset_getid(struct thread *td, 2493 struct freebsd32_cpuset_getid_args *uap) 2494 { 2495 struct cpuset_getid_args ap; 2496 2497 ap.level = uap->level; 2498 ap.which = uap->which; 2499 ap.id = PAIR32TO64(id_t,uap->id); 2500 ap.setid = uap->setid; 2501 2502 return (sys_cpuset_getid(td, &ap)); 2503 } 2504 2505 int 2506 freebsd32_cpuset_getaffinity(struct thread *td, 2507 struct freebsd32_cpuset_getaffinity_args *uap) 2508 { 2509 struct cpuset_getaffinity_args ap; 2510 2511 ap.level = uap->level; 2512 ap.which = uap->which; 2513 ap.id = PAIR32TO64(id_t,uap->id); 2514 ap.cpusetsize = uap->cpusetsize; 2515 ap.mask = uap->mask; 2516 2517 return (sys_cpuset_getaffinity(td, &ap)); 2518 } 2519 2520 int 2521 freebsd32_cpuset_setaffinity(struct thread *td, 2522 struct freebsd32_cpuset_setaffinity_args *uap) 2523 { 2524 struct cpuset_setaffinity_args ap; 2525 2526 ap.level = uap->level; 2527 ap.which = uap->which; 2528 ap.id = PAIR32TO64(id_t,uap->id); 2529 ap.cpusetsize = uap->cpusetsize; 2530 ap.mask = uap->mask; 2531 2532 return (sys_cpuset_setaffinity(td, &ap)); 2533 } 2534 2535 int 2536 freebsd32_nmount(struct thread *td, 2537 struct freebsd32_nmount_args /* { 2538 struct iovec *iovp; 2539 unsigned int iovcnt; 2540 int flags; 2541 } */ *uap) 2542 { 2543 struct uio *auio; 2544 uint64_t flags; 2545 int error; 2546 2547 /* 2548 * Mount flags are now 64-bits. On 32-bit archtectures only 2549 * 32-bits are passed in, but from here on everything handles 2550 * 64-bit flags correctly. 2551 */ 2552 flags = uap->flags; 2553 2554 AUDIT_ARG_FFLAGS(flags); 2555 2556 /* 2557 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2558 * userspace to set this flag, but we must filter it out if we want 2559 * MNT_UPDATE on the root file system to work. 2560 * MNT_ROOTFS should only be set by the kernel when mounting its 2561 * root file system. 2562 */ 2563 flags &= ~MNT_ROOTFS; 2564 2565 /* 2566 * check that we have an even number of iovec's 2567 * and that we have at least two options. 2568 */ 2569 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2570 return (EINVAL); 2571 2572 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2573 if (error) 2574 return (error); 2575 error = vfs_donmount(td, flags, auio); 2576 2577 free(auio, M_IOV); 2578 return error; 2579 } 2580 2581 #if 0 2582 int 2583 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2584 { 2585 struct yyy32 *p32, s32; 2586 struct yyy *p = NULL, s; 2587 struct xxx_arg ap; 2588 int error; 2589 2590 if (uap->zzz) { 2591 error = copyin(uap->zzz, &s32, sizeof(s32)); 2592 if (error) 2593 return (error); 2594 /* translate in */ 2595 p = &s; 2596 } 2597 error = kern_xxx(td, p); 2598 if (error) 2599 return (error); 2600 if (uap->zzz) { 2601 /* translate out */ 2602 error = copyout(&s32, p32, sizeof(s32)); 2603 } 2604 return (error); 2605 } 2606 #endif 2607 2608 int 2609 syscall32_register(int *offset, struct sysent *new_sysent, 2610 struct sysent *old_sysent, int flags) 2611 { 2612 2613 if ((flags & ~SY_THR_STATIC) != 0) 2614 return (EINVAL); 2615 2616 if (*offset == NO_SYSCALL) { 2617 int i; 2618 2619 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2620 if (freebsd32_sysent[i].sy_call == 2621 (sy_call_t *)lkmnosys) 2622 break; 2623 if (i == SYS_MAXSYSCALL) 2624 return (ENFILE); 2625 *offset = i; 2626 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2627 return (EINVAL); 2628 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2629 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2630 return (EEXIST); 2631 2632 *old_sysent = freebsd32_sysent[*offset]; 2633 freebsd32_sysent[*offset] = *new_sysent; 2634 atomic_store_rel_32(&freebsd32_sysent[*offset].sy_thrcnt, flags); 2635 return (0); 2636 } 2637 2638 int 2639 syscall32_deregister(int *offset, struct sysent *old_sysent) 2640 { 2641 2642 if (*offset == 0) 2643 return (0); 2644 2645 freebsd32_sysent[*offset] = *old_sysent; 2646 return (0); 2647 } 2648 2649 int 2650 syscall32_module_handler(struct module *mod, int what, void *arg) 2651 { 2652 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2653 modspecific_t ms; 2654 int error; 2655 2656 switch (what) { 2657 case MOD_LOAD: 2658 error = syscall32_register(data->offset, data->new_sysent, 2659 &data->old_sysent, SY_THR_STATIC_KLD); 2660 if (error) { 2661 /* Leave a mark so we know to safely unload below. */ 2662 data->offset = NULL; 2663 return error; 2664 } 2665 ms.intval = *data->offset; 2666 MOD_XLOCK; 2667 module_setspecific(mod, &ms); 2668 MOD_XUNLOCK; 2669 if (data->chainevh) 2670 error = data->chainevh(mod, what, data->chainarg); 2671 return (error); 2672 case MOD_UNLOAD: 2673 /* 2674 * MOD_LOAD failed, so just return without calling the 2675 * chained handler since we didn't pass along the MOD_LOAD 2676 * event. 2677 */ 2678 if (data->offset == NULL) 2679 return (0); 2680 if (data->chainevh) { 2681 error = data->chainevh(mod, what, data->chainarg); 2682 if (error) 2683 return (error); 2684 } 2685 error = syscall32_deregister(data->offset, &data->old_sysent); 2686 return (error); 2687 default: 2688 error = EOPNOTSUPP; 2689 if (data->chainevh) 2690 error = data->chainevh(mod, what, data->chainarg); 2691 return (error); 2692 } 2693 } 2694 2695 int 2696 syscall32_helper_register(struct syscall_helper_data *sd, int flags) 2697 { 2698 struct syscall_helper_data *sd1; 2699 int error; 2700 2701 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2702 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2703 &sd1->old_sysent, flags); 2704 if (error != 0) { 2705 syscall32_helper_unregister(sd); 2706 return (error); 2707 } 2708 sd1->registered = 1; 2709 } 2710 return (0); 2711 } 2712 2713 int 2714 syscall32_helper_unregister(struct syscall_helper_data *sd) 2715 { 2716 struct syscall_helper_data *sd1; 2717 2718 for (sd1 = sd; sd1->registered != 0; sd1++) { 2719 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2720 sd1->registered = 0; 2721 } 2722 return (0); 2723 } 2724 2725 register_t * 2726 freebsd32_copyout_strings(struct image_params *imgp) 2727 { 2728 int argc, envc, i; 2729 u_int32_t *vectp; 2730 char *stringp; 2731 uintptr_t destp; 2732 u_int32_t *stack_base; 2733 struct freebsd32_ps_strings *arginfo; 2734 char canary[sizeof(long) * 8]; 2735 int32_t pagesizes32[MAXPAGESIZES]; 2736 size_t execpath_len; 2737 int szsigcode; 2738 2739 /* 2740 * Calculate string base and vector table pointers. 2741 * Also deal with signal trampoline code for this exec type. 2742 */ 2743 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2744 execpath_len = strlen(imgp->execpath) + 1; 2745 else 2746 execpath_len = 0; 2747 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2748 sv_psstrings; 2749 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2750 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2751 else 2752 szsigcode = 0; 2753 destp = (uintptr_t)arginfo; 2754 2755 /* 2756 * install sigcode 2757 */ 2758 if (szsigcode != 0) { 2759 destp -= szsigcode; 2760 destp = rounddown2(destp, sizeof(uint32_t)); 2761 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2762 szsigcode); 2763 } 2764 2765 /* 2766 * Copy the image path for the rtld. 2767 */ 2768 if (execpath_len != 0) { 2769 destp -= execpath_len; 2770 imgp->execpathp = destp; 2771 copyout(imgp->execpath, (void *)destp, execpath_len); 2772 } 2773 2774 /* 2775 * Prepare the canary for SSP. 2776 */ 2777 arc4rand(canary, sizeof(canary), 0); 2778 destp -= sizeof(canary); 2779 imgp->canary = destp; 2780 copyout(canary, (void *)destp, sizeof(canary)); 2781 imgp->canarylen = sizeof(canary); 2782 2783 /* 2784 * Prepare the pagesizes array. 2785 */ 2786 for (i = 0; i < MAXPAGESIZES; i++) 2787 pagesizes32[i] = (uint32_t)pagesizes[i]; 2788 destp -= sizeof(pagesizes32); 2789 destp = rounddown2(destp, sizeof(uint32_t)); 2790 imgp->pagesizes = destp; 2791 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2792 imgp->pagesizeslen = sizeof(pagesizes32); 2793 2794 destp -= ARG_MAX - imgp->args->stringspace; 2795 destp = rounddown2(destp, sizeof(uint32_t)); 2796 2797 /* 2798 * If we have a valid auxargs ptr, prepare some room 2799 * on the stack. 2800 */ 2801 if (imgp->auxargs) { 2802 /* 2803 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2804 * lower compatibility. 2805 */ 2806 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2807 : (AT_COUNT * 2); 2808 /* 2809 * The '+ 2' is for the null pointers at the end of each of 2810 * the arg and env vector sets,and imgp->auxarg_size is room 2811 * for argument of Runtime loader. 2812 */ 2813 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2814 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2815 sizeof(u_int32_t)); 2816 } else { 2817 /* 2818 * The '+ 2' is for the null pointers at the end of each of 2819 * the arg and env vector sets 2820 */ 2821 vectp = (u_int32_t *)(destp - (imgp->args->argc + 2822 imgp->args->envc + 2) * sizeof(u_int32_t)); 2823 } 2824 2825 /* 2826 * vectp also becomes our initial stack base 2827 */ 2828 stack_base = vectp; 2829 2830 stringp = imgp->args->begin_argv; 2831 argc = imgp->args->argc; 2832 envc = imgp->args->envc; 2833 /* 2834 * Copy out strings - arguments and environment. 2835 */ 2836 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2837 2838 /* 2839 * Fill in "ps_strings" struct for ps, w, etc. 2840 */ 2841 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2842 suword32(&arginfo->ps_nargvstr, argc); 2843 2844 /* 2845 * Fill in argument portion of vector table. 2846 */ 2847 for (; argc > 0; --argc) { 2848 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2849 while (*stringp++ != 0) 2850 destp++; 2851 destp++; 2852 } 2853 2854 /* a null vector table pointer separates the argp's from the envp's */ 2855 suword32(vectp++, 0); 2856 2857 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2858 suword32(&arginfo->ps_nenvstr, envc); 2859 2860 /* 2861 * Fill in environment portion of vector table. 2862 */ 2863 for (; envc > 0; --envc) { 2864 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2865 while (*stringp++ != 0) 2866 destp++; 2867 destp++; 2868 } 2869 2870 /* end of vector table is a null pointer */ 2871 suword32(vectp, 0); 2872 2873 return ((register_t *)stack_base); 2874 } 2875 2876 int 2877 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2878 { 2879 struct kld_file_stat stat; 2880 struct kld32_file_stat stat32; 2881 int error, version; 2882 2883 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2884 != 0) 2885 return (error); 2886 if (version != sizeof(struct kld32_file_stat_1) && 2887 version != sizeof(struct kld32_file_stat)) 2888 return (EINVAL); 2889 2890 error = kern_kldstat(td, uap->fileid, &stat); 2891 if (error != 0) 2892 return (error); 2893 2894 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name)); 2895 CP(stat, stat32, refs); 2896 CP(stat, stat32, id); 2897 PTROUT_CP(stat, stat32, address); 2898 CP(stat, stat32, size); 2899 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname)); 2900 return (copyout(&stat32, uap->stat, version)); 2901 } 2902 2903 int 2904 freebsd32_posix_fallocate(struct thread *td, 2905 struct freebsd32_posix_fallocate_args *uap) 2906 { 2907 2908 td->td_retval[0] = kern_posix_fallocate(td, uap->fd, 2909 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 2910 return (0); 2911 } 2912 2913 int 2914 freebsd32_posix_fadvise(struct thread *td, 2915 struct freebsd32_posix_fadvise_args *uap) 2916 { 2917 2918 td->td_retval[0] = kern_posix_fadvise(td, uap->fd, 2919 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len), 2920 uap->advice); 2921 return (0); 2922 } 2923 2924 int 2925 convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 2926 { 2927 2928 CP(*sig32, *sig, sigev_notify); 2929 switch (sig->sigev_notify) { 2930 case SIGEV_NONE: 2931 break; 2932 case SIGEV_THREAD_ID: 2933 CP(*sig32, *sig, sigev_notify_thread_id); 2934 /* FALLTHROUGH */ 2935 case SIGEV_SIGNAL: 2936 CP(*sig32, *sig, sigev_signo); 2937 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 2938 break; 2939 case SIGEV_KEVENT: 2940 CP(*sig32, *sig, sigev_notify_kqueue); 2941 CP(*sig32, *sig, sigev_notify_kevent_flags); 2942 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 2943 break; 2944 default: 2945 return (EINVAL); 2946 } 2947 return (0); 2948 } 2949 2950 int 2951 freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 2952 { 2953 void *data; 2954 int error, flags; 2955 2956 switch (uap->com) { 2957 case PROC_SPROTECT: 2958 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 2959 if (error) 2960 return (error); 2961 data = &flags; 2962 break; 2963 default: 2964 return (EINVAL); 2965 } 2966 return (kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 2967 uap->com, data)); 2968 } 2969 2970 int 2971 freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 2972 { 2973 long tmp; 2974 2975 switch (uap->cmd) { 2976 /* 2977 * Do unsigned conversion for arg when operation 2978 * interprets it as flags or pointer. 2979 */ 2980 case F_SETLK_REMOTE: 2981 case F_SETLKW: 2982 case F_SETLK: 2983 case F_GETLK: 2984 case F_SETFD: 2985 case F_SETFL: 2986 tmp = (unsigned int)(uap->arg); 2987 break; 2988 default: 2989 tmp = uap->arg; 2990 break; 2991 } 2992 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 2993 } 2994