freebsd32_misc.c revision 363919
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: stable/11/sys/compat/freebsd32/freebsd32_misc.c 363919 2020-08-05 17:08:02Z markj $"); 29 30#include "opt_compat.h" 31#include "opt_inet.h" 32#include "opt_inet6.h" 33#include "opt_ktrace.h" 34 35#define __ELF_WORD_SIZE 32 36 37#include <sys/param.h> 38#include <sys/bus.h> 39#include <sys/capsicum.h> 40#include <sys/clock.h> 41#include <sys/exec.h> 42#include <sys/fcntl.h> 43#include <sys/filedesc.h> 44#include <sys/imgact.h> 45#include <sys/jail.h> 46#include <sys/kernel.h> 47#include <sys/limits.h> 48#include <sys/linker.h> 49#include <sys/lock.h> 50#include <sys/malloc.h> 51#include <sys/file.h> /* Must come after sys/malloc.h */ 52#include <sys/imgact.h> 53#include <sys/mbuf.h> 54#include <sys/mman.h> 55#include <sys/module.h> 56#include <sys/mount.h> 57#include <sys/mutex.h> 58#include <sys/namei.h> 59#include <sys/proc.h> 60#include <sys/procctl.h> 61#include <sys/reboot.h> 62#include <sys/resource.h> 63#include <sys/resourcevar.h> 64#include <sys/selinfo.h> 65#include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 66#include <sys/pipe.h> /* Must come after sys/selinfo.h */ 67#include <sys/signal.h> 68#include <sys/signalvar.h> 69#include <sys/socket.h> 70#include <sys/socketvar.h> 71#include <sys/stat.h> 72#include <sys/syscall.h> 73#include <sys/syscallsubr.h> 74#include <sys/sysctl.h> 75#include <sys/sysent.h> 76#include <sys/sysproto.h> 77#include <sys/systm.h> 78#include <sys/thr.h> 79#include <sys/unistd.h> 80#include <sys/ucontext.h> 81#include <sys/vnode.h> 82#include <sys/wait.h> 83#include <sys/ipc.h> 84#include <sys/msg.h> 85#include <sys/sem.h> 86#include <sys/shm.h> 87#ifdef KTRACE 88#include <sys/ktrace.h> 89#endif 90 91#ifdef INET 92#include <netinet/in.h> 93#endif 94 95#include <vm/vm.h> 96#include <vm/vm_param.h> 97#include <vm/pmap.h> 98#include <vm/vm_map.h> 99#include <vm/vm_object.h> 100#include <vm/vm_extern.h> 101 102#include <machine/cpu.h> 103#include <machine/elf.h> 104 105#include <security/audit/audit.h> 106 107#include <compat/freebsd32/freebsd32_util.h> 108#include <compat/freebsd32/freebsd32.h> 109#include <compat/freebsd32/freebsd32_ipc.h> 110#include <compat/freebsd32/freebsd32_misc.h> 111#include <compat/freebsd32/freebsd32_signal.h> 112#include <compat/freebsd32/freebsd32_proto.h> 113 114FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD"); 115 116#ifndef __mips__ 117CTASSERT(sizeof(struct timeval32) == 8); 118CTASSERT(sizeof(struct timespec32) == 8); 119CTASSERT(sizeof(struct itimerval32) == 16); 120CTASSERT(sizeof(struct bintime32) == 12); 121#endif 122CTASSERT(sizeof(struct statfs32) == 256); 123#ifndef __mips__ 124CTASSERT(sizeof(struct rusage32) == 72); 125#endif 126CTASSERT(sizeof(struct sigaltstack32) == 12); 127CTASSERT(sizeof(struct kevent32) == 20); 128CTASSERT(sizeof(struct iovec32) == 8); 129CTASSERT(sizeof(struct msghdr32) == 28); 130#ifndef __mips__ 131CTASSERT(sizeof(struct stat32) == 96); 132#endif 133CTASSERT(sizeof(struct sigaction32) == 24); 134 135static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 136static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 137static int freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id, 138 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp); 139 140void 141freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 142{ 143 144 TV_CP(*s, *s32, ru_utime); 145 TV_CP(*s, *s32, ru_stime); 146 CP(*s, *s32, ru_maxrss); 147 CP(*s, *s32, ru_ixrss); 148 CP(*s, *s32, ru_idrss); 149 CP(*s, *s32, ru_isrss); 150 CP(*s, *s32, ru_minflt); 151 CP(*s, *s32, ru_majflt); 152 CP(*s, *s32, ru_nswap); 153 CP(*s, *s32, ru_inblock); 154 CP(*s, *s32, ru_oublock); 155 CP(*s, *s32, ru_msgsnd); 156 CP(*s, *s32, ru_msgrcv); 157 CP(*s, *s32, ru_nsignals); 158 CP(*s, *s32, ru_nvcsw); 159 CP(*s, *s32, ru_nivcsw); 160} 161 162int 163freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 164{ 165 int error, status; 166 struct rusage32 ru32; 167 struct rusage ru, *rup; 168 169 if (uap->rusage != NULL) 170 rup = &ru; 171 else 172 rup = NULL; 173 error = kern_wait(td, uap->pid, &status, uap->options, rup); 174 if (error) 175 return (error); 176 if (uap->status != NULL) 177 error = copyout(&status, uap->status, sizeof(status)); 178 if (uap->rusage != NULL && error == 0) { 179 freebsd32_rusage_out(&ru, &ru32); 180 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 181 } 182 return (error); 183} 184 185int 186freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap) 187{ 188 struct wrusage32 wru32; 189 struct __wrusage wru, *wrup; 190 struct siginfo32 si32; 191 struct __siginfo si, *sip; 192 int error, status; 193 194 if (uap->wrusage != NULL) 195 wrup = &wru; 196 else 197 wrup = NULL; 198 if (uap->info != NULL) { 199 sip = &si; 200 bzero(sip, sizeof(*sip)); 201 } else 202 sip = NULL; 203 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id), 204 &status, uap->options, wrup, sip); 205 if (error != 0) 206 return (error); 207 if (uap->status != NULL) 208 error = copyout(&status, uap->status, sizeof(status)); 209 if (uap->wrusage != NULL && error == 0) { 210 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self); 211 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children); 212 error = copyout(&wru32, uap->wrusage, sizeof(wru32)); 213 } 214 if (uap->info != NULL && error == 0) { 215 siginfo_to_siginfo32 (&si, &si32); 216 error = copyout(&si32, uap->info, sizeof(si32)); 217 } 218 return (error); 219} 220 221#ifdef COMPAT_FREEBSD4 222static void 223copy_statfs(struct statfs *in, struct statfs32 *out) 224{ 225 226 statfs_scale_blocks(in, INT32_MAX); 227 bzero(out, sizeof(*out)); 228 CP(*in, *out, f_bsize); 229 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 230 CP(*in, *out, f_blocks); 231 CP(*in, *out, f_bfree); 232 CP(*in, *out, f_bavail); 233 out->f_files = MIN(in->f_files, INT32_MAX); 234 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 235 CP(*in, *out, f_fsid); 236 CP(*in, *out, f_owner); 237 CP(*in, *out, f_type); 238 CP(*in, *out, f_flags); 239 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 240 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 241 strlcpy(out->f_fstypename, 242 in->f_fstypename, MFSNAMELEN); 243 strlcpy(out->f_mntonname, 244 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 245 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 246 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 247 strlcpy(out->f_mntfromname, 248 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 249} 250#endif 251 252#ifdef COMPAT_FREEBSD4 253int 254freebsd4_freebsd32_getfsstat(struct thread *td, 255 struct freebsd4_freebsd32_getfsstat_args *uap) 256{ 257 struct statfs *buf, *sp; 258 struct statfs32 stat32; 259 size_t count, size, copycount; 260 int error; 261 262 count = uap->bufsize / sizeof(struct statfs32); 263 size = count * sizeof(struct statfs); 264 error = kern_getfsstat(td, &buf, size, &count, UIO_SYSSPACE, uap->mode); 265 if (size > 0) { 266 sp = buf; 267 copycount = count; 268 while (copycount > 0 && error == 0) { 269 copy_statfs(sp, &stat32); 270 error = copyout(&stat32, uap->buf, sizeof(stat32)); 271 sp++; 272 uap->buf++; 273 copycount--; 274 } 275 free(buf, M_STATFS); 276 } 277 if (error == 0) 278 td->td_retval[0] = count; 279 return (error); 280} 281#endif 282 283#ifdef COMPAT_FREEBSD10 284int 285freebsd10_freebsd32_pipe(struct thread *td, 286 struct freebsd10_freebsd32_pipe_args *uap) { 287 288 return (freebsd10_pipe(td, (struct freebsd10_pipe_args*)uap)); 289} 290#endif 291 292int 293freebsd32_sigaltstack(struct thread *td, 294 struct freebsd32_sigaltstack_args *uap) 295{ 296 struct sigaltstack32 s32; 297 struct sigaltstack ss, oss, *ssp; 298 int error; 299 300 if (uap->ss != NULL) { 301 error = copyin(uap->ss, &s32, sizeof(s32)); 302 if (error) 303 return (error); 304 PTRIN_CP(s32, ss, ss_sp); 305 CP(s32, ss, ss_size); 306 CP(s32, ss, ss_flags); 307 ssp = &ss; 308 } else 309 ssp = NULL; 310 error = kern_sigaltstack(td, ssp, &oss); 311 if (error == 0 && uap->oss != NULL) { 312 PTROUT_CP(oss, s32, ss_sp); 313 CP(oss, s32, ss_size); 314 CP(oss, s32, ss_flags); 315 error = copyout(&s32, uap->oss, sizeof(s32)); 316 } 317 return (error); 318} 319 320/* 321 * Custom version of exec_copyin_args() so that we can translate 322 * the pointers. 323 */ 324int 325freebsd32_exec_copyin_args(struct image_args *args, char *fname, 326 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 327{ 328 char *argp, *envp; 329 u_int32_t *p32, arg; 330 size_t length; 331 int error; 332 333 bzero(args, sizeof(*args)); 334 if (argv == NULL) 335 return (EFAULT); 336 337 /* 338 * Allocate demand-paged memory for the file name, argument, and 339 * environment strings. 340 */ 341 error = exec_alloc_args(args); 342 if (error != 0) 343 return (error); 344 345 /* 346 * Copy the file name. 347 */ 348 if (fname != NULL) { 349 args->fname = args->buf; 350 error = (segflg == UIO_SYSSPACE) ? 351 copystr(fname, args->fname, PATH_MAX, &length) : 352 copyinstr(fname, args->fname, PATH_MAX, &length); 353 if (error != 0) 354 goto err_exit; 355 } else 356 length = 0; 357 358 args->begin_argv = args->buf + length; 359 args->endp = args->begin_argv; 360 args->stringspace = ARG_MAX; 361 362 /* 363 * extract arguments first 364 */ 365 p32 = argv; 366 for (;;) { 367 error = copyin(p32++, &arg, sizeof(arg)); 368 if (error) 369 goto err_exit; 370 if (arg == 0) 371 break; 372 argp = PTRIN(arg); 373 error = copyinstr(argp, args->endp, args->stringspace, &length); 374 if (error) { 375 if (error == ENAMETOOLONG) 376 error = E2BIG; 377 goto err_exit; 378 } 379 args->stringspace -= length; 380 args->endp += length; 381 args->argc++; 382 } 383 384 args->begin_envv = args->endp; 385 386 /* 387 * extract environment strings 388 */ 389 if (envv) { 390 p32 = envv; 391 for (;;) { 392 error = copyin(p32++, &arg, sizeof(arg)); 393 if (error) 394 goto err_exit; 395 if (arg == 0) 396 break; 397 envp = PTRIN(arg); 398 error = copyinstr(envp, args->endp, args->stringspace, 399 &length); 400 if (error) { 401 if (error == ENAMETOOLONG) 402 error = E2BIG; 403 goto err_exit; 404 } 405 args->stringspace -= length; 406 args->endp += length; 407 args->envc++; 408 } 409 } 410 411 return (0); 412 413err_exit: 414 exec_free_args(args); 415 return (error); 416} 417 418int 419freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 420{ 421 struct image_args eargs; 422 struct vmspace *oldvmspace; 423 int error; 424 425 error = pre_execve(td, &oldvmspace); 426 if (error != 0) 427 return (error); 428 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 429 uap->argv, uap->envv); 430 if (error == 0) 431 error = kern_execve(td, &eargs, NULL); 432 post_execve(td, error, oldvmspace); 433 return (error); 434} 435 436int 437freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 438{ 439 struct image_args eargs; 440 struct vmspace *oldvmspace; 441 int error; 442 443 error = pre_execve(td, &oldvmspace); 444 if (error != 0) 445 return (error); 446 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 447 uap->argv, uap->envv); 448 if (error == 0) { 449 eargs.fd = uap->fd; 450 error = kern_execve(td, &eargs, NULL); 451 } 452 post_execve(td, error, oldvmspace); 453 return (error); 454} 455 456int 457freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 458{ 459 int prot; 460 461 prot = uap->prot; 462#if defined(__amd64__) 463 if (i386_read_exec && (prot & PROT_READ) != 0) 464 prot |= PROT_EXEC; 465#endif 466 return (kern_mprotect(td, (uintptr_t)PTRIN(uap->addr), uap->len, 467 prot)); 468} 469 470int 471freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 472{ 473 int prot; 474 475 prot = uap->prot; 476#if defined(__amd64__) 477 if (i386_read_exec && (prot & PROT_READ)) 478 prot |= PROT_EXEC; 479#endif 480 481 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot, 482 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos))); 483} 484 485#ifdef COMPAT_FREEBSD6 486int 487freebsd6_freebsd32_mmap(struct thread *td, 488 struct freebsd6_freebsd32_mmap_args *uap) 489{ 490 int prot; 491 492 prot = uap->prot; 493#if defined(__amd64__) 494 if (i386_read_exec && (prot & PROT_READ)) 495 prot |= PROT_EXEC; 496#endif 497 498 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot, 499 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos))); 500} 501#endif 502 503int 504freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 505{ 506 struct itimerval itv, oitv, *itvp; 507 struct itimerval32 i32; 508 int error; 509 510 if (uap->itv != NULL) { 511 error = copyin(uap->itv, &i32, sizeof(i32)); 512 if (error) 513 return (error); 514 TV_CP(i32, itv, it_interval); 515 TV_CP(i32, itv, it_value); 516 itvp = &itv; 517 } else 518 itvp = NULL; 519 error = kern_setitimer(td, uap->which, itvp, &oitv); 520 if (error || uap->oitv == NULL) 521 return (error); 522 TV_CP(oitv, i32, it_interval); 523 TV_CP(oitv, i32, it_value); 524 return (copyout(&i32, uap->oitv, sizeof(i32))); 525} 526 527int 528freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 529{ 530 struct itimerval itv; 531 struct itimerval32 i32; 532 int error; 533 534 error = kern_getitimer(td, uap->which, &itv); 535 if (error || uap->itv == NULL) 536 return (error); 537 TV_CP(itv, i32, it_interval); 538 TV_CP(itv, i32, it_value); 539 return (copyout(&i32, uap->itv, sizeof(i32))); 540} 541 542int 543freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 544{ 545 struct timeval32 tv32; 546 struct timeval tv, *tvp; 547 int error; 548 549 if (uap->tv != NULL) { 550 error = copyin(uap->tv, &tv32, sizeof(tv32)); 551 if (error) 552 return (error); 553 CP(tv32, tv, tv_sec); 554 CP(tv32, tv, tv_usec); 555 tvp = &tv; 556 } else 557 tvp = NULL; 558 /* 559 * XXX Do pointers need PTRIN()? 560 */ 561 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 562 sizeof(int32_t) * 8)); 563} 564 565int 566freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 567{ 568 struct timespec32 ts32; 569 struct timespec ts; 570 struct timeval tv, *tvp; 571 sigset_t set, *uset; 572 int error; 573 574 if (uap->ts != NULL) { 575 error = copyin(uap->ts, &ts32, sizeof(ts32)); 576 if (error != 0) 577 return (error); 578 CP(ts32, ts, tv_sec); 579 CP(ts32, ts, tv_nsec); 580 TIMESPEC_TO_TIMEVAL(&tv, &ts); 581 tvp = &tv; 582 } else 583 tvp = NULL; 584 if (uap->sm != NULL) { 585 error = copyin(uap->sm, &set, sizeof(set)); 586 if (error != 0) 587 return (error); 588 uset = &set; 589 } else 590 uset = NULL; 591 /* 592 * XXX Do pointers need PTRIN()? 593 */ 594 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 595 uset, sizeof(int32_t) * 8); 596 return (error); 597} 598 599/* 600 * Copy 'count' items into the destination list pointed to by uap->eventlist. 601 */ 602static int 603freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 604{ 605 struct freebsd32_kevent_args *uap; 606 struct kevent32 ks32[KQ_NEVENTS]; 607 int i, error = 0; 608 609 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 610 uap = (struct freebsd32_kevent_args *)arg; 611 612 for (i = 0; i < count; i++) { 613 CP(kevp[i], ks32[i], ident); 614 CP(kevp[i], ks32[i], filter); 615 CP(kevp[i], ks32[i], flags); 616 CP(kevp[i], ks32[i], fflags); 617 CP(kevp[i], ks32[i], data); 618 PTROUT_CP(kevp[i], ks32[i], udata); 619 } 620 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 621 if (error == 0) 622 uap->eventlist += count; 623 return (error); 624} 625 626/* 627 * Copy 'count' items from the list pointed to by uap->changelist. 628 */ 629static int 630freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 631{ 632 struct freebsd32_kevent_args *uap; 633 struct kevent32 ks32[KQ_NEVENTS]; 634 int i, error = 0; 635 636 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 637 uap = (struct freebsd32_kevent_args *)arg; 638 639 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 640 if (error) 641 goto done; 642 uap->changelist += count; 643 644 for (i = 0; i < count; i++) { 645 CP(ks32[i], kevp[i], ident); 646 CP(ks32[i], kevp[i], filter); 647 CP(ks32[i], kevp[i], flags); 648 CP(ks32[i], kevp[i], fflags); 649 CP(ks32[i], kevp[i], data); 650 PTRIN_CP(ks32[i], kevp[i], udata); 651 } 652done: 653 return (error); 654} 655 656int 657freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 658{ 659 struct timespec32 ts32; 660 struct timespec ts, *tsp; 661 struct kevent_copyops k_ops = { 662 .arg = uap, 663 .k_copyout = freebsd32_kevent_copyout, 664 .k_copyin = freebsd32_kevent_copyin, 665 }; 666#ifdef KTRACE 667 struct kevent32 *eventlist = uap->eventlist; 668#endif 669 int error; 670 671 672 if (uap->timeout) { 673 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 674 if (error) 675 return (error); 676 CP(ts32, ts, tv_sec); 677 CP(ts32, ts, tv_nsec); 678 tsp = &ts; 679 } else 680 tsp = NULL; 681#ifdef KTRACE 682 if (KTRPOINT(td, KTR_STRUCT_ARRAY)) 683 ktrstructarray("kevent32", UIO_USERSPACE, uap->changelist, 684 uap->nchanges, sizeof(struct kevent32)); 685#endif 686 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 687 &k_ops, tsp); 688#ifdef KTRACE 689 if (error == 0 && KTRPOINT(td, KTR_STRUCT_ARRAY)) 690 ktrstructarray("kevent32", UIO_USERSPACE, eventlist, 691 td->td_retval[0], sizeof(struct kevent32)); 692#endif 693 return (error); 694} 695 696int 697freebsd32_gettimeofday(struct thread *td, 698 struct freebsd32_gettimeofday_args *uap) 699{ 700 struct timeval atv; 701 struct timeval32 atv32; 702 struct timezone rtz; 703 int error = 0; 704 705 if (uap->tp) { 706 microtime(&atv); 707 CP(atv, atv32, tv_sec); 708 CP(atv, atv32, tv_usec); 709 error = copyout(&atv32, uap->tp, sizeof (atv32)); 710 } 711 if (error == 0 && uap->tzp != NULL) { 712 rtz.tz_minuteswest = tz_minuteswest; 713 rtz.tz_dsttime = tz_dsttime; 714 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 715 } 716 return (error); 717} 718 719int 720freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 721{ 722 struct rusage32 s32; 723 struct rusage s; 724 int error; 725 726 error = kern_getrusage(td, uap->who, &s); 727 if (error == 0) { 728 freebsd32_rusage_out(&s, &s32); 729 error = copyout(&s32, uap->rusage, sizeof(s32)); 730 } 731 return (error); 732} 733 734static int 735freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 736{ 737 struct iovec32 iov32; 738 struct iovec *iov; 739 struct uio *uio; 740 u_int iovlen; 741 int error, i; 742 743 *uiop = NULL; 744 if (iovcnt > UIO_MAXIOV) 745 return (EINVAL); 746 iovlen = iovcnt * sizeof(struct iovec); 747 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 748 iov = (struct iovec *)(uio + 1); 749 for (i = 0; i < iovcnt; i++) { 750 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 751 if (error) { 752 free(uio, M_IOV); 753 return (error); 754 } 755 iov[i].iov_base = PTRIN(iov32.iov_base); 756 iov[i].iov_len = iov32.iov_len; 757 } 758 uio->uio_iov = iov; 759 uio->uio_iovcnt = iovcnt; 760 uio->uio_segflg = UIO_USERSPACE; 761 uio->uio_offset = -1; 762 uio->uio_resid = 0; 763 for (i = 0; i < iovcnt; i++) { 764 if (iov->iov_len > INT_MAX - uio->uio_resid) { 765 free(uio, M_IOV); 766 return (EINVAL); 767 } 768 uio->uio_resid += iov->iov_len; 769 iov++; 770 } 771 *uiop = uio; 772 return (0); 773} 774 775int 776freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 777{ 778 struct uio *auio; 779 int error; 780 781 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 782 if (error) 783 return (error); 784 error = kern_readv(td, uap->fd, auio); 785 free(auio, M_IOV); 786 return (error); 787} 788 789int 790freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 791{ 792 struct uio *auio; 793 int error; 794 795 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 796 if (error) 797 return (error); 798 error = kern_writev(td, uap->fd, auio); 799 free(auio, M_IOV); 800 return (error); 801} 802 803int 804freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 805{ 806 struct uio *auio; 807 int error; 808 809 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 810 if (error) 811 return (error); 812 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 813 free(auio, M_IOV); 814 return (error); 815} 816 817int 818freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 819{ 820 struct uio *auio; 821 int error; 822 823 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 824 if (error) 825 return (error); 826 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 827 free(auio, M_IOV); 828 return (error); 829} 830 831int 832freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 833 int error) 834{ 835 struct iovec32 iov32; 836 struct iovec *iov; 837 u_int iovlen; 838 int i; 839 840 *iovp = NULL; 841 if (iovcnt > UIO_MAXIOV) 842 return (error); 843 iovlen = iovcnt * sizeof(struct iovec); 844 iov = malloc(iovlen, M_IOV, M_WAITOK); 845 for (i = 0; i < iovcnt; i++) { 846 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 847 if (error) { 848 free(iov, M_IOV); 849 return (error); 850 } 851 iov[i].iov_base = PTRIN(iov32.iov_base); 852 iov[i].iov_len = iov32.iov_len; 853 } 854 *iovp = iov; 855 return (0); 856} 857 858static int 859freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 860{ 861 struct msghdr32 m32; 862 int error; 863 864 error = copyin(msg32, &m32, sizeof(m32)); 865 if (error) 866 return (error); 867 msg->msg_name = PTRIN(m32.msg_name); 868 msg->msg_namelen = m32.msg_namelen; 869 msg->msg_iov = PTRIN(m32.msg_iov); 870 msg->msg_iovlen = m32.msg_iovlen; 871 msg->msg_control = PTRIN(m32.msg_control); 872 msg->msg_controllen = m32.msg_controllen; 873 msg->msg_flags = m32.msg_flags; 874 return (0); 875} 876 877static int 878freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 879{ 880 struct msghdr32 m32; 881 int error; 882 883 m32.msg_name = PTROUT(msg->msg_name); 884 m32.msg_namelen = msg->msg_namelen; 885 m32.msg_iov = PTROUT(msg->msg_iov); 886 m32.msg_iovlen = msg->msg_iovlen; 887 m32.msg_control = PTROUT(msg->msg_control); 888 m32.msg_controllen = msg->msg_controllen; 889 m32.msg_flags = msg->msg_flags; 890 error = copyout(&m32, msg32, sizeof(m32)); 891 return (error); 892} 893 894#ifndef __mips__ 895#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 896#else 897#define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 898#endif 899#define FREEBSD32_ALIGN(p) \ 900 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 901#define FREEBSD32_CMSG_SPACE(l) \ 902 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 903 904#define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 905 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 906 907static size_t 908freebsd32_cmsg_convert(const struct cmsghdr *cm, void *data, socklen_t datalen) 909{ 910 size_t copylen; 911 union { 912 struct timespec32 ts; 913 struct timeval32 tv; 914 struct bintime32 bt; 915 } tmp32; 916 917 union { 918 struct timespec ts; 919 struct timeval tv; 920 struct bintime bt; 921 } *in; 922 923 in = data; 924 copylen = 0; 925 switch (cm->cmsg_level) { 926 case SOL_SOCKET: 927 switch (cm->cmsg_type) { 928 case SCM_TIMESTAMP: 929 TV_CP(*in, tmp32, tv); 930 copylen = sizeof(tmp32.tv); 931 break; 932 933 case SCM_BINTIME: 934 BT_CP(*in, tmp32, bt); 935 copylen = sizeof(tmp32.bt); 936 break; 937 938 case SCM_REALTIME: 939 case SCM_MONOTONIC: 940 TS_CP(*in, tmp32, ts); 941 copylen = sizeof(tmp32.ts); 942 break; 943 944 default: 945 break; 946 } 947 948 default: 949 break; 950 } 951 952 if (copylen == 0) 953 return (datalen); 954 955 KASSERT((datalen >= copylen), ("corrupted cmsghdr")); 956 957 bcopy(&tmp32, data, copylen); 958 return (copylen); 959} 960 961static int 962freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 963{ 964 struct cmsghdr *cm; 965 void *data; 966 socklen_t clen, datalen, datalen_out, oldclen; 967 int error; 968 caddr_t ctlbuf; 969 int len, maxlen, copylen; 970 struct mbuf *m; 971 error = 0; 972 973 len = msg->msg_controllen; 974 maxlen = msg->msg_controllen; 975 msg->msg_controllen = 0; 976 977 ctlbuf = msg->msg_control; 978 for (m = control; m != NULL && len > 0; m = m->m_next) { 979 cm = mtod(m, struct cmsghdr *); 980 clen = m->m_len; 981 while (cm != NULL) { 982 if (sizeof(struct cmsghdr) > clen || 983 cm->cmsg_len > clen) { 984 error = EINVAL; 985 break; 986 } 987 988 data = CMSG_DATA(cm); 989 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 990 datalen_out = freebsd32_cmsg_convert(cm, data, datalen); 991 992 /* 993 * Copy out the message header. Preserve the native 994 * message size in case we need to inspect the message 995 * contents later. 996 */ 997 copylen = sizeof(struct cmsghdr); 998 if (len < copylen) { 999 msg->msg_flags |= MSG_CTRUNC; 1000 m_dispose_extcontrolm(m); 1001 goto exit; 1002 } 1003 oldclen = cm->cmsg_len; 1004 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 1005 datalen_out; 1006 error = copyout(cm, ctlbuf, copylen); 1007 cm->cmsg_len = oldclen; 1008 if (error != 0) 1009 goto exit; 1010 1011 ctlbuf += FREEBSD32_ALIGN(copylen); 1012 len -= FREEBSD32_ALIGN(copylen); 1013 1014 copylen = datalen_out; 1015 if (len < copylen) { 1016 msg->msg_flags |= MSG_CTRUNC; 1017 m_dispose_extcontrolm(m); 1018 break; 1019 } 1020 1021 /* Copy out the message data. */ 1022 error = copyout(data, ctlbuf, copylen); 1023 if (error) 1024 goto exit; 1025 1026 ctlbuf += FREEBSD32_ALIGN(copylen); 1027 len -= FREEBSD32_ALIGN(copylen); 1028 1029 if (CMSG_SPACE(datalen) < clen) { 1030 clen -= CMSG_SPACE(datalen); 1031 cm = (struct cmsghdr *) 1032 ((caddr_t)cm + CMSG_SPACE(datalen)); 1033 } else { 1034 clen = 0; 1035 cm = NULL; 1036 } 1037 1038 msg->msg_controllen += 1039 FREEBSD32_CMSG_SPACE(datalen_out); 1040 } 1041 } 1042 if (len == 0 && m != NULL) { 1043 msg->msg_flags |= MSG_CTRUNC; 1044 m_dispose_extcontrolm(m); 1045 } 1046 1047exit: 1048 return (error); 1049} 1050 1051int 1052freebsd32_recvmsg(td, uap) 1053 struct thread *td; 1054 struct freebsd32_recvmsg_args /* { 1055 int s; 1056 struct msghdr32 *msg; 1057 int flags; 1058 } */ *uap; 1059{ 1060 struct msghdr msg; 1061 struct msghdr32 m32; 1062 struct iovec *uiov, *iov; 1063 struct mbuf *control = NULL; 1064 struct mbuf **controlp; 1065 1066 int error; 1067 error = copyin(uap->msg, &m32, sizeof(m32)); 1068 if (error) 1069 return (error); 1070 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1071 if (error) 1072 return (error); 1073 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1074 EMSGSIZE); 1075 if (error) 1076 return (error); 1077 msg.msg_flags = uap->flags; 1078 uiov = msg.msg_iov; 1079 msg.msg_iov = iov; 1080 1081 controlp = (msg.msg_control != NULL) ? &control : NULL; 1082 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1083 if (error == 0) { 1084 msg.msg_iov = uiov; 1085 1086 if (control != NULL) 1087 error = freebsd32_copy_msg_out(&msg, control); 1088 else 1089 msg.msg_controllen = 0; 1090 1091 if (error == 0) 1092 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1093 } 1094 free(iov, M_IOV); 1095 1096 if (control != NULL) { 1097 if (error != 0) 1098 m_dispose_extcontrolm(control); 1099 m_freem(control); 1100 } 1101 1102 return (error); 1103} 1104 1105/* 1106 * Copy-in the array of control messages constructed using alignment 1107 * and padding suitable for a 32-bit environment and construct an 1108 * mbuf using alignment and padding suitable for a 64-bit kernel. 1109 * The alignment and padding are defined indirectly by CMSG_DATA(), 1110 * CMSG_SPACE() and CMSG_LEN(). 1111 */ 1112static int 1113freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1114{ 1115 struct cmsghdr *cm; 1116 struct mbuf *m; 1117 void *in, *in1, *md; 1118 u_int msglen, outlen; 1119 int error; 1120 1121 if (buflen > MCLBYTES) 1122 return (EINVAL); 1123 1124 in = malloc(buflen, M_TEMP, M_WAITOK); 1125 error = copyin(buf, in, buflen); 1126 if (error != 0) 1127 goto out; 1128 1129 /* 1130 * Make a pass over the input buffer to determine the amount of space 1131 * required for 64 bit-aligned copies of the control messages. 1132 */ 1133 in1 = in; 1134 outlen = 0; 1135 while (buflen > 0) { 1136 if (buflen < sizeof(*cm)) { 1137 error = EINVAL; 1138 break; 1139 } 1140 cm = (struct cmsghdr *)in1; 1141 if (cm->cmsg_len < FREEBSD32_ALIGN(sizeof(*cm))) { 1142 error = EINVAL; 1143 break; 1144 } 1145 msglen = FREEBSD32_ALIGN(cm->cmsg_len); 1146 if (msglen > buflen || msglen < cm->cmsg_len) { 1147 error = EINVAL; 1148 break; 1149 } 1150 buflen -= msglen; 1151 1152 in1 = (char *)in1 + msglen; 1153 outlen += CMSG_ALIGN(sizeof(*cm)) + 1154 CMSG_ALIGN(msglen - FREEBSD32_ALIGN(sizeof(*cm))); 1155 } 1156 if (error == 0 && outlen > MCLBYTES) { 1157 /* 1158 * XXXMJ This implies that the upper limit on 32-bit aligned 1159 * control messages is less than MCLBYTES, and so we are not 1160 * perfectly compatible. However, there is no platform 1161 * guarantee that mbuf clusters larger than MCLBYTES can be 1162 * allocated. 1163 */ 1164 error = EINVAL; 1165 } 1166 if (error != 0) 1167 goto out; 1168 1169 m = m_get2(outlen, M_WAITOK, MT_CONTROL, 0); 1170 m->m_len = outlen; 1171 md = mtod(m, void *); 1172 1173 /* 1174 * Make a second pass over input messages, copying them into the output 1175 * buffer. 1176 */ 1177 in1 = in; 1178 while (outlen > 0) { 1179 /* Copy the message header and align the length field. */ 1180 cm = md; 1181 memcpy(cm, in1, sizeof(*cm)); 1182 msglen = cm->cmsg_len - FREEBSD32_ALIGN(sizeof(*cm)); 1183 cm->cmsg_len = CMSG_ALIGN(sizeof(*cm)) + msglen; 1184 1185 /* Copy the message body. */ 1186 in1 = (char *)in1 + FREEBSD32_ALIGN(sizeof(*cm)); 1187 md = (char *)md + CMSG_ALIGN(sizeof(*cm)); 1188 memcpy(md, in1, msglen); 1189 in1 = (char *)in1 + FREEBSD32_ALIGN(msglen); 1190 md = (char *)md + CMSG_ALIGN(msglen); 1191 KASSERT(outlen >= CMSG_ALIGN(sizeof(*cm)) + CMSG_ALIGN(msglen), 1192 ("outlen %u underflow, msglen %u", outlen, msglen)); 1193 outlen -= CMSG_ALIGN(sizeof(*cm)) + CMSG_ALIGN(msglen); 1194 } 1195 1196 *mp = m; 1197out: 1198 free(in, M_TEMP); 1199 return (error); 1200} 1201 1202int 1203freebsd32_sendmsg(struct thread *td, 1204 struct freebsd32_sendmsg_args *uap) 1205{ 1206 struct msghdr msg; 1207 struct msghdr32 m32; 1208 struct iovec *iov; 1209 struct mbuf *control = NULL; 1210 struct sockaddr *to = NULL; 1211 int error; 1212 1213 error = copyin(uap->msg, &m32, sizeof(m32)); 1214 if (error) 1215 return (error); 1216 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1217 if (error) 1218 return (error); 1219 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1220 EMSGSIZE); 1221 if (error) 1222 return (error); 1223 msg.msg_iov = iov; 1224 if (msg.msg_name != NULL) { 1225 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1226 if (error) { 1227 to = NULL; 1228 goto out; 1229 } 1230 msg.msg_name = to; 1231 } 1232 1233 if (msg.msg_control) { 1234 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1235 error = EINVAL; 1236 goto out; 1237 } 1238 1239 error = freebsd32_copyin_control(&control, msg.msg_control, 1240 msg.msg_controllen); 1241 if (error) 1242 goto out; 1243 1244 msg.msg_control = NULL; 1245 msg.msg_controllen = 0; 1246 } 1247 1248 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1249 UIO_USERSPACE); 1250 1251out: 1252 free(iov, M_IOV); 1253 if (to) 1254 free(to, M_SONAME); 1255 return (error); 1256} 1257 1258int 1259freebsd32_recvfrom(struct thread *td, 1260 struct freebsd32_recvfrom_args *uap) 1261{ 1262 struct msghdr msg; 1263 struct iovec aiov; 1264 int error; 1265 1266 if (uap->fromlenaddr) { 1267 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1268 sizeof(msg.msg_namelen)); 1269 if (error) 1270 return (error); 1271 } else { 1272 msg.msg_namelen = 0; 1273 } 1274 1275 msg.msg_name = PTRIN(uap->from); 1276 msg.msg_iov = &aiov; 1277 msg.msg_iovlen = 1; 1278 aiov.iov_base = PTRIN(uap->buf); 1279 aiov.iov_len = uap->len; 1280 msg.msg_control = NULL; 1281 msg.msg_flags = uap->flags; 1282 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1283 if (error == 0 && uap->fromlenaddr) 1284 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1285 sizeof (msg.msg_namelen)); 1286 return (error); 1287} 1288 1289int 1290freebsd32_settimeofday(struct thread *td, 1291 struct freebsd32_settimeofday_args *uap) 1292{ 1293 struct timeval32 tv32; 1294 struct timeval tv, *tvp; 1295 struct timezone tz, *tzp; 1296 int error; 1297 1298 if (uap->tv) { 1299 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1300 if (error) 1301 return (error); 1302 CP(tv32, tv, tv_sec); 1303 CP(tv32, tv, tv_usec); 1304 tvp = &tv; 1305 } else 1306 tvp = NULL; 1307 if (uap->tzp) { 1308 error = copyin(uap->tzp, &tz, sizeof(tz)); 1309 if (error) 1310 return (error); 1311 tzp = &tz; 1312 } else 1313 tzp = NULL; 1314 return (kern_settimeofday(td, tvp, tzp)); 1315} 1316 1317int 1318freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1319{ 1320 struct timeval32 s32[2]; 1321 struct timeval s[2], *sp; 1322 int error; 1323 1324 if (uap->tptr != NULL) { 1325 error = copyin(uap->tptr, s32, sizeof(s32)); 1326 if (error) 1327 return (error); 1328 CP(s32[0], s[0], tv_sec); 1329 CP(s32[0], s[0], tv_usec); 1330 CP(s32[1], s[1], tv_sec); 1331 CP(s32[1], s[1], tv_usec); 1332 sp = s; 1333 } else 1334 sp = NULL; 1335 return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE, 1336 sp, UIO_SYSSPACE)); 1337} 1338 1339int 1340freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1341{ 1342 struct timeval32 s32[2]; 1343 struct timeval s[2], *sp; 1344 int error; 1345 1346 if (uap->tptr != NULL) { 1347 error = copyin(uap->tptr, s32, sizeof(s32)); 1348 if (error) 1349 return (error); 1350 CP(s32[0], s[0], tv_sec); 1351 CP(s32[0], s[0], tv_usec); 1352 CP(s32[1], s[1], tv_sec); 1353 CP(s32[1], s[1], tv_usec); 1354 sp = s; 1355 } else 1356 sp = NULL; 1357 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1358} 1359 1360int 1361freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1362{ 1363 struct timeval32 s32[2]; 1364 struct timeval s[2], *sp; 1365 int error; 1366 1367 if (uap->tptr != NULL) { 1368 error = copyin(uap->tptr, s32, sizeof(s32)); 1369 if (error) 1370 return (error); 1371 CP(s32[0], s[0], tv_sec); 1372 CP(s32[0], s[0], tv_usec); 1373 CP(s32[1], s[1], tv_sec); 1374 CP(s32[1], s[1], tv_usec); 1375 sp = s; 1376 } else 1377 sp = NULL; 1378 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1379} 1380 1381int 1382freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1383{ 1384 struct timeval32 s32[2]; 1385 struct timeval s[2], *sp; 1386 int error; 1387 1388 if (uap->times != NULL) { 1389 error = copyin(uap->times, s32, sizeof(s32)); 1390 if (error) 1391 return (error); 1392 CP(s32[0], s[0], tv_sec); 1393 CP(s32[0], s[0], tv_usec); 1394 CP(s32[1], s[1], tv_sec); 1395 CP(s32[1], s[1], tv_usec); 1396 sp = s; 1397 } else 1398 sp = NULL; 1399 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1400 sp, UIO_SYSSPACE)); 1401} 1402 1403int 1404freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap) 1405{ 1406 struct timespec32 ts32[2]; 1407 struct timespec ts[2], *tsp; 1408 int error; 1409 1410 if (uap->times != NULL) { 1411 error = copyin(uap->times, ts32, sizeof(ts32)); 1412 if (error) 1413 return (error); 1414 CP(ts32[0], ts[0], tv_sec); 1415 CP(ts32[0], ts[0], tv_nsec); 1416 CP(ts32[1], ts[1], tv_sec); 1417 CP(ts32[1], ts[1], tv_nsec); 1418 tsp = ts; 1419 } else 1420 tsp = NULL; 1421 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE)); 1422} 1423 1424int 1425freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap) 1426{ 1427 struct timespec32 ts32[2]; 1428 struct timespec ts[2], *tsp; 1429 int error; 1430 1431 if (uap->times != NULL) { 1432 error = copyin(uap->times, ts32, sizeof(ts32)); 1433 if (error) 1434 return (error); 1435 CP(ts32[0], ts[0], tv_sec); 1436 CP(ts32[0], ts[0], tv_nsec); 1437 CP(ts32[1], ts[1], tv_sec); 1438 CP(ts32[1], ts[1], tv_nsec); 1439 tsp = ts; 1440 } else 1441 tsp = NULL; 1442 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE, 1443 tsp, UIO_SYSSPACE, uap->flag)); 1444} 1445 1446int 1447freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1448{ 1449 struct timeval32 tv32; 1450 struct timeval delta, olddelta, *deltap; 1451 int error; 1452 1453 if (uap->delta) { 1454 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1455 if (error) 1456 return (error); 1457 CP(tv32, delta, tv_sec); 1458 CP(tv32, delta, tv_usec); 1459 deltap = δ 1460 } else 1461 deltap = NULL; 1462 error = kern_adjtime(td, deltap, &olddelta); 1463 if (uap->olddelta && error == 0) { 1464 CP(olddelta, tv32, tv_sec); 1465 CP(olddelta, tv32, tv_usec); 1466 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1467 } 1468 return (error); 1469} 1470 1471#ifdef COMPAT_FREEBSD4 1472int 1473freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1474{ 1475 struct statfs32 s32; 1476 struct statfs *sp; 1477 int error; 1478 1479 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1480 error = kern_statfs(td, uap->path, UIO_USERSPACE, sp); 1481 if (error == 0) { 1482 copy_statfs(sp, &s32); 1483 error = copyout(&s32, uap->buf, sizeof(s32)); 1484 } 1485 free(sp, M_STATFS); 1486 return (error); 1487} 1488#endif 1489 1490#ifdef COMPAT_FREEBSD4 1491int 1492freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1493{ 1494 struct statfs32 s32; 1495 struct statfs *sp; 1496 int error; 1497 1498 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1499 error = kern_fstatfs(td, uap->fd, sp); 1500 if (error == 0) { 1501 copy_statfs(sp, &s32); 1502 error = copyout(&s32, uap->buf, sizeof(s32)); 1503 } 1504 free(sp, M_STATFS); 1505 return (error); 1506} 1507#endif 1508 1509#ifdef COMPAT_FREEBSD4 1510int 1511freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1512{ 1513 struct statfs32 s32; 1514 struct statfs *sp; 1515 fhandle_t fh; 1516 int error; 1517 1518 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1519 return (error); 1520 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1521 error = kern_fhstatfs(td, fh, sp); 1522 if (error == 0) { 1523 copy_statfs(sp, &s32); 1524 error = copyout(&s32, uap->buf, sizeof(s32)); 1525 } 1526 free(sp, M_STATFS); 1527 return (error); 1528} 1529#endif 1530 1531int 1532freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1533{ 1534 1535 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte, 1536 PAIR32TO64(off_t, uap->offset))); 1537} 1538 1539int 1540freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1541{ 1542 1543 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte, 1544 PAIR32TO64(off_t, uap->offset))); 1545} 1546 1547#ifdef COMPAT_43 1548int 1549ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1550{ 1551 1552 return (kern_lseek(td, uap->fd, uap->offset, uap->whence)); 1553} 1554#endif 1555 1556int 1557freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1558{ 1559 int error; 1560 off_t pos; 1561 1562 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset), 1563 uap->whence); 1564 /* Expand the quad return into two parts for eax and edx */ 1565 pos = td->td_uretoff.tdu_off; 1566 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1567 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1568 return error; 1569} 1570 1571int 1572freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1573{ 1574 1575 return (kern_truncate(td, uap->path, UIO_USERSPACE, 1576 PAIR32TO64(off_t, uap->length))); 1577} 1578 1579int 1580freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1581{ 1582 1583 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length))); 1584} 1585 1586#ifdef COMPAT_43 1587int 1588ofreebsd32_getdirentries(struct thread *td, 1589 struct ofreebsd32_getdirentries_args *uap) 1590{ 1591 struct ogetdirentries_args ap; 1592 int error; 1593 long loff; 1594 int32_t loff_cut; 1595 1596 ap.fd = uap->fd; 1597 ap.buf = uap->buf; 1598 ap.count = uap->count; 1599 ap.basep = NULL; 1600 error = kern_ogetdirentries(td, &ap, &loff); 1601 if (error == 0) { 1602 loff_cut = loff; 1603 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1604 } 1605 return (error); 1606} 1607#endif 1608 1609int 1610freebsd32_getdirentries(struct thread *td, 1611 struct freebsd32_getdirentries_args *uap) 1612{ 1613 long base; 1614 int32_t base32; 1615 int error; 1616 1617 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1618 NULL, UIO_USERSPACE); 1619 if (error) 1620 return (error); 1621 if (uap->basep != NULL) { 1622 base32 = base; 1623 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1624 } 1625 return (error); 1626} 1627 1628#ifdef COMPAT_FREEBSD6 1629/* versions with the 'int pad' argument */ 1630int 1631freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1632{ 1633 1634 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte, 1635 PAIR32TO64(off_t, uap->offset))); 1636} 1637 1638int 1639freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1640{ 1641 1642 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte, 1643 PAIR32TO64(off_t, uap->offset))); 1644} 1645 1646int 1647freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1648{ 1649 int error; 1650 off_t pos; 1651 1652 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset), 1653 uap->whence); 1654 /* Expand the quad return into two parts for eax and edx */ 1655 pos = *(off_t *)(td->td_retval); 1656 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1657 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1658 return error; 1659} 1660 1661int 1662freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1663{ 1664 1665 return (kern_truncate(td, uap->path, UIO_USERSPACE, 1666 PAIR32TO64(off_t, uap->length))); 1667} 1668 1669int 1670freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1671{ 1672 1673 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length))); 1674} 1675#endif /* COMPAT_FREEBSD6 */ 1676 1677struct sf_hdtr32 { 1678 uint32_t headers; 1679 int hdr_cnt; 1680 uint32_t trailers; 1681 int trl_cnt; 1682}; 1683 1684static int 1685freebsd32_do_sendfile(struct thread *td, 1686 struct freebsd32_sendfile_args *uap, int compat) 1687{ 1688 struct sf_hdtr32 hdtr32; 1689 struct sf_hdtr hdtr; 1690 struct uio *hdr_uio, *trl_uio; 1691 struct file *fp; 1692 cap_rights_t rights; 1693 struct iovec32 *iov32; 1694 off_t offset, sbytes; 1695 int error; 1696 1697 offset = PAIR32TO64(off_t, uap->offset); 1698 if (offset < 0) 1699 return (EINVAL); 1700 1701 hdr_uio = trl_uio = NULL; 1702 1703 if (uap->hdtr != NULL) { 1704 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1705 if (error) 1706 goto out; 1707 PTRIN_CP(hdtr32, hdtr, headers); 1708 CP(hdtr32, hdtr, hdr_cnt); 1709 PTRIN_CP(hdtr32, hdtr, trailers); 1710 CP(hdtr32, hdtr, trl_cnt); 1711 1712 if (hdtr.headers != NULL) { 1713 iov32 = PTRIN(hdtr32.headers); 1714 error = freebsd32_copyinuio(iov32, 1715 hdtr32.hdr_cnt, &hdr_uio); 1716 if (error) 1717 goto out; 1718#ifdef COMPAT_FREEBSD4 1719 /* 1720 * In FreeBSD < 5.0 the nbytes to send also included 1721 * the header. If compat is specified subtract the 1722 * header size from nbytes. 1723 */ 1724 if (compat) { 1725 if (uap->nbytes > hdr_uio->uio_resid) 1726 uap->nbytes -= hdr_uio->uio_resid; 1727 else 1728 uap->nbytes = 0; 1729 } 1730#endif 1731 } 1732 if (hdtr.trailers != NULL) { 1733 iov32 = PTRIN(hdtr32.trailers); 1734 error = freebsd32_copyinuio(iov32, 1735 hdtr32.trl_cnt, &trl_uio); 1736 if (error) 1737 goto out; 1738 } 1739 } 1740 1741 AUDIT_ARG_FD(uap->fd); 1742 1743 if ((error = fget_read(td, uap->fd, 1744 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) 1745 goto out; 1746 1747 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1748 uap->nbytes, &sbytes, uap->flags, td); 1749 fdrop(fp, td); 1750 1751 if (uap->sbytes != NULL) 1752 copyout(&sbytes, uap->sbytes, sizeof(off_t)); 1753 1754out: 1755 if (hdr_uio) 1756 free(hdr_uio, M_IOV); 1757 if (trl_uio) 1758 free(trl_uio, M_IOV); 1759 return (error); 1760} 1761 1762#ifdef COMPAT_FREEBSD4 1763int 1764freebsd4_freebsd32_sendfile(struct thread *td, 1765 struct freebsd4_freebsd32_sendfile_args *uap) 1766{ 1767 return (freebsd32_do_sendfile(td, 1768 (struct freebsd32_sendfile_args *)uap, 1)); 1769} 1770#endif 1771 1772int 1773freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1774{ 1775 1776 return (freebsd32_do_sendfile(td, uap, 0)); 1777} 1778 1779static void 1780copy_stat(struct stat *in, struct stat32 *out) 1781{ 1782 1783 CP(*in, *out, st_dev); 1784 CP(*in, *out, st_ino); 1785 CP(*in, *out, st_mode); 1786 CP(*in, *out, st_nlink); 1787 CP(*in, *out, st_uid); 1788 CP(*in, *out, st_gid); 1789 CP(*in, *out, st_rdev); 1790 TS_CP(*in, *out, st_atim); 1791 TS_CP(*in, *out, st_mtim); 1792 TS_CP(*in, *out, st_ctim); 1793 CP(*in, *out, st_size); 1794 CP(*in, *out, st_blocks); 1795 CP(*in, *out, st_blksize); 1796 CP(*in, *out, st_flags); 1797 CP(*in, *out, st_gen); 1798 TS_CP(*in, *out, st_birthtim); 1799} 1800 1801#ifdef COMPAT_43 1802static void 1803copy_ostat(struct stat *in, struct ostat32 *out) 1804{ 1805 1806 CP(*in, *out, st_dev); 1807 CP(*in, *out, st_ino); 1808 CP(*in, *out, st_mode); 1809 CP(*in, *out, st_nlink); 1810 CP(*in, *out, st_uid); 1811 CP(*in, *out, st_gid); 1812 CP(*in, *out, st_rdev); 1813 CP(*in, *out, st_size); 1814 TS_CP(*in, *out, st_atim); 1815 TS_CP(*in, *out, st_mtim); 1816 TS_CP(*in, *out, st_ctim); 1817 CP(*in, *out, st_blksize); 1818 CP(*in, *out, st_blocks); 1819 CP(*in, *out, st_flags); 1820 CP(*in, *out, st_gen); 1821} 1822#endif 1823 1824int 1825freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1826{ 1827 struct stat sb; 1828 struct stat32 sb32; 1829 int error; 1830 1831 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1832 &sb, NULL); 1833 if (error) 1834 return (error); 1835 copy_stat(&sb, &sb32); 1836 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1837 return (error); 1838} 1839 1840#ifdef COMPAT_43 1841int 1842ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1843{ 1844 struct stat sb; 1845 struct ostat32 sb32; 1846 int error; 1847 1848 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1849 &sb, NULL); 1850 if (error) 1851 return (error); 1852 copy_ostat(&sb, &sb32); 1853 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1854 return (error); 1855} 1856#endif 1857 1858int 1859freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1860{ 1861 struct stat ub; 1862 struct stat32 ub32; 1863 int error; 1864 1865 error = kern_fstat(td, uap->fd, &ub); 1866 if (error) 1867 return (error); 1868 copy_stat(&ub, &ub32); 1869 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1870 return (error); 1871} 1872 1873#ifdef COMPAT_43 1874int 1875ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1876{ 1877 struct stat ub; 1878 struct ostat32 ub32; 1879 int error; 1880 1881 error = kern_fstat(td, uap->fd, &ub); 1882 if (error) 1883 return (error); 1884 copy_ostat(&ub, &ub32); 1885 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1886 return (error); 1887} 1888#endif 1889 1890int 1891freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1892{ 1893 struct stat ub; 1894 struct stat32 ub32; 1895 int error; 1896 1897 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, 1898 &ub, NULL); 1899 if (error) 1900 return (error); 1901 copy_stat(&ub, &ub32); 1902 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1903 return (error); 1904} 1905 1906int 1907freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1908{ 1909 struct stat sb; 1910 struct stat32 sb32; 1911 int error; 1912 1913 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1914 UIO_USERSPACE, &sb, NULL); 1915 if (error) 1916 return (error); 1917 copy_stat(&sb, &sb32); 1918 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1919 return (error); 1920} 1921 1922#ifdef COMPAT_43 1923int 1924ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1925{ 1926 struct stat sb; 1927 struct ostat32 sb32; 1928 int error; 1929 1930 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1931 UIO_USERSPACE, &sb, NULL); 1932 if (error) 1933 return (error); 1934 copy_ostat(&sb, &sb32); 1935 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1936 return (error); 1937} 1938#endif 1939 1940int 1941freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1942{ 1943 int error, name[CTL_MAXNAME]; 1944 size_t j, oldlen; 1945 uint32_t tmp; 1946 1947 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1948 return (EINVAL); 1949 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1950 if (error) 1951 return (error); 1952 if (uap->oldlenp) { 1953 error = fueword32(uap->oldlenp, &tmp); 1954 oldlen = tmp; 1955 } else { 1956 oldlen = 0; 1957 } 1958 if (error != 0) 1959 return (EFAULT); 1960 error = userland_sysctl(td, name, uap->namelen, 1961 uap->old, &oldlen, 1, 1962 uap->new, uap->newlen, &j, SCTL_MASK32); 1963 if (error && error != ENOMEM) 1964 return (error); 1965 if (uap->oldlenp) 1966 suword32(uap->oldlenp, j); 1967 return (0); 1968} 1969 1970int 1971freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1972{ 1973 uint32_t version; 1974 int error; 1975 struct jail j; 1976 1977 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1978 if (error) 1979 return (error); 1980 1981 switch (version) { 1982 case 0: 1983 { 1984 /* FreeBSD single IPv4 jails. */ 1985 struct jail32_v0 j32_v0; 1986 1987 bzero(&j, sizeof(struct jail)); 1988 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1989 if (error) 1990 return (error); 1991 CP(j32_v0, j, version); 1992 PTRIN_CP(j32_v0, j, path); 1993 PTRIN_CP(j32_v0, j, hostname); 1994 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1995 break; 1996 } 1997 1998 case 1: 1999 /* 2000 * Version 1 was used by multi-IPv4 jail implementations 2001 * that never made it into the official kernel. 2002 */ 2003 return (EINVAL); 2004 2005 case 2: /* JAIL_API_VERSION */ 2006 { 2007 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 2008 struct jail32 j32; 2009 2010 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 2011 if (error) 2012 return (error); 2013 CP(j32, j, version); 2014 PTRIN_CP(j32, j, path); 2015 PTRIN_CP(j32, j, hostname); 2016 PTRIN_CP(j32, j, jailname); 2017 CP(j32, j, ip4s); 2018 CP(j32, j, ip6s); 2019 PTRIN_CP(j32, j, ip4); 2020 PTRIN_CP(j32, j, ip6); 2021 break; 2022 } 2023 2024 default: 2025 /* Sci-Fi jails are not supported, sorry. */ 2026 return (EINVAL); 2027 } 2028 return (kern_jail(td, &j)); 2029} 2030 2031int 2032freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 2033{ 2034 struct uio *auio; 2035 int error; 2036 2037 /* Check that we have an even number of iovecs. */ 2038 if (uap->iovcnt & 1) 2039 return (EINVAL); 2040 2041 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2042 if (error) 2043 return (error); 2044 error = kern_jail_set(td, auio, uap->flags); 2045 free(auio, M_IOV); 2046 return (error); 2047} 2048 2049int 2050freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 2051{ 2052 struct iovec32 iov32; 2053 struct uio *auio; 2054 int error, i; 2055 2056 /* Check that we have an even number of iovecs. */ 2057 if (uap->iovcnt & 1) 2058 return (EINVAL); 2059 2060 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2061 if (error) 2062 return (error); 2063 error = kern_jail_get(td, auio, uap->flags); 2064 if (error == 0) 2065 for (i = 0; i < uap->iovcnt; i++) { 2066 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 2067 CP(auio->uio_iov[i], iov32, iov_len); 2068 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 2069 if (error != 0) 2070 break; 2071 } 2072 free(auio, M_IOV); 2073 return (error); 2074} 2075 2076int 2077freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2078{ 2079 struct sigaction32 s32; 2080 struct sigaction sa, osa, *sap; 2081 int error; 2082 2083 if (uap->act) { 2084 error = copyin(uap->act, &s32, sizeof(s32)); 2085 if (error) 2086 return (error); 2087 sa.sa_handler = PTRIN(s32.sa_u); 2088 CP(s32, sa, sa_flags); 2089 CP(s32, sa, sa_mask); 2090 sap = &sa; 2091 } else 2092 sap = NULL; 2093 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2094 if (error == 0 && uap->oact != NULL) { 2095 s32.sa_u = PTROUT(osa.sa_handler); 2096 CP(osa, s32, sa_flags); 2097 CP(osa, s32, sa_mask); 2098 error = copyout(&s32, uap->oact, sizeof(s32)); 2099 } 2100 return (error); 2101} 2102 2103#ifdef COMPAT_FREEBSD4 2104int 2105freebsd4_freebsd32_sigaction(struct thread *td, 2106 struct freebsd4_freebsd32_sigaction_args *uap) 2107{ 2108 struct sigaction32 s32; 2109 struct sigaction sa, osa, *sap; 2110 int error; 2111 2112 if (uap->act) { 2113 error = copyin(uap->act, &s32, sizeof(s32)); 2114 if (error) 2115 return (error); 2116 sa.sa_handler = PTRIN(s32.sa_u); 2117 CP(s32, sa, sa_flags); 2118 CP(s32, sa, sa_mask); 2119 sap = &sa; 2120 } else 2121 sap = NULL; 2122 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2123 if (error == 0 && uap->oact != NULL) { 2124 s32.sa_u = PTROUT(osa.sa_handler); 2125 CP(osa, s32, sa_flags); 2126 CP(osa, s32, sa_mask); 2127 error = copyout(&s32, uap->oact, sizeof(s32)); 2128 } 2129 return (error); 2130} 2131#endif 2132 2133#ifdef COMPAT_43 2134struct osigaction32 { 2135 u_int32_t sa_u; 2136 osigset_t sa_mask; 2137 int sa_flags; 2138}; 2139 2140#define ONSIG 32 2141 2142int 2143ofreebsd32_sigaction(struct thread *td, 2144 struct ofreebsd32_sigaction_args *uap) 2145{ 2146 struct osigaction32 s32; 2147 struct sigaction sa, osa, *sap; 2148 int error; 2149 2150 if (uap->signum <= 0 || uap->signum >= ONSIG) 2151 return (EINVAL); 2152 2153 if (uap->nsa) { 2154 error = copyin(uap->nsa, &s32, sizeof(s32)); 2155 if (error) 2156 return (error); 2157 sa.sa_handler = PTRIN(s32.sa_u); 2158 CP(s32, sa, sa_flags); 2159 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2160 sap = &sa; 2161 } else 2162 sap = NULL; 2163 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2164 if (error == 0 && uap->osa != NULL) { 2165 s32.sa_u = PTROUT(osa.sa_handler); 2166 CP(osa, s32, sa_flags); 2167 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2168 error = copyout(&s32, uap->osa, sizeof(s32)); 2169 } 2170 return (error); 2171} 2172 2173int 2174ofreebsd32_sigprocmask(struct thread *td, 2175 struct ofreebsd32_sigprocmask_args *uap) 2176{ 2177 sigset_t set, oset; 2178 int error; 2179 2180 OSIG2SIG(uap->mask, set); 2181 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2182 SIG2OSIG(oset, td->td_retval[0]); 2183 return (error); 2184} 2185 2186int 2187ofreebsd32_sigpending(struct thread *td, 2188 struct ofreebsd32_sigpending_args *uap) 2189{ 2190 struct proc *p = td->td_proc; 2191 sigset_t siglist; 2192 2193 PROC_LOCK(p); 2194 siglist = p->p_siglist; 2195 SIGSETOR(siglist, td->td_siglist); 2196 PROC_UNLOCK(p); 2197 SIG2OSIG(siglist, td->td_retval[0]); 2198 return (0); 2199} 2200 2201struct sigvec32 { 2202 u_int32_t sv_handler; 2203 int sv_mask; 2204 int sv_flags; 2205}; 2206 2207int 2208ofreebsd32_sigvec(struct thread *td, 2209 struct ofreebsd32_sigvec_args *uap) 2210{ 2211 struct sigvec32 vec; 2212 struct sigaction sa, osa, *sap; 2213 int error; 2214 2215 if (uap->signum <= 0 || uap->signum >= ONSIG) 2216 return (EINVAL); 2217 2218 if (uap->nsv) { 2219 error = copyin(uap->nsv, &vec, sizeof(vec)); 2220 if (error) 2221 return (error); 2222 sa.sa_handler = PTRIN(vec.sv_handler); 2223 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2224 sa.sa_flags = vec.sv_flags; 2225 sa.sa_flags ^= SA_RESTART; 2226 sap = &sa; 2227 } else 2228 sap = NULL; 2229 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2230 if (error == 0 && uap->osv != NULL) { 2231 vec.sv_handler = PTROUT(osa.sa_handler); 2232 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2233 vec.sv_flags = osa.sa_flags; 2234 vec.sv_flags &= ~SA_NOCLDWAIT; 2235 vec.sv_flags ^= SA_RESTART; 2236 error = copyout(&vec, uap->osv, sizeof(vec)); 2237 } 2238 return (error); 2239} 2240 2241int 2242ofreebsd32_sigblock(struct thread *td, 2243 struct ofreebsd32_sigblock_args *uap) 2244{ 2245 sigset_t set, oset; 2246 2247 OSIG2SIG(uap->mask, set); 2248 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2249 SIG2OSIG(oset, td->td_retval[0]); 2250 return (0); 2251} 2252 2253int 2254ofreebsd32_sigsetmask(struct thread *td, 2255 struct ofreebsd32_sigsetmask_args *uap) 2256{ 2257 sigset_t set, oset; 2258 2259 OSIG2SIG(uap->mask, set); 2260 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2261 SIG2OSIG(oset, td->td_retval[0]); 2262 return (0); 2263} 2264 2265int 2266ofreebsd32_sigsuspend(struct thread *td, 2267 struct ofreebsd32_sigsuspend_args *uap) 2268{ 2269 sigset_t mask; 2270 2271 OSIG2SIG(uap->mask, mask); 2272 return (kern_sigsuspend(td, mask)); 2273} 2274 2275struct sigstack32 { 2276 u_int32_t ss_sp; 2277 int ss_onstack; 2278}; 2279 2280int 2281ofreebsd32_sigstack(struct thread *td, 2282 struct ofreebsd32_sigstack_args *uap) 2283{ 2284 struct sigstack32 s32; 2285 struct sigstack nss, oss; 2286 int error = 0, unss; 2287 2288 if (uap->nss != NULL) { 2289 error = copyin(uap->nss, &s32, sizeof(s32)); 2290 if (error) 2291 return (error); 2292 nss.ss_sp = PTRIN(s32.ss_sp); 2293 CP(s32, nss, ss_onstack); 2294 unss = 1; 2295 } else { 2296 unss = 0; 2297 } 2298 oss.ss_sp = td->td_sigstk.ss_sp; 2299 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2300 if (unss) { 2301 td->td_sigstk.ss_sp = nss.ss_sp; 2302 td->td_sigstk.ss_size = 0; 2303 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2304 td->td_pflags |= TDP_ALTSTACK; 2305 } 2306 if (uap->oss != NULL) { 2307 s32.ss_sp = PTROUT(oss.ss_sp); 2308 CP(oss, s32, ss_onstack); 2309 error = copyout(&s32, uap->oss, sizeof(s32)); 2310 } 2311 return (error); 2312} 2313#endif 2314 2315int 2316freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2317{ 2318 2319 return (freebsd32_user_clock_nanosleep(td, CLOCK_REALTIME, 2320 TIMER_RELTIME, uap->rqtp, uap->rmtp)); 2321} 2322 2323int 2324freebsd32_clock_nanosleep(struct thread *td, 2325 struct freebsd32_clock_nanosleep_args *uap) 2326{ 2327 int error; 2328 2329 error = freebsd32_user_clock_nanosleep(td, uap->clock_id, uap->flags, 2330 uap->rqtp, uap->rmtp); 2331 return (kern_posix_error(td, error)); 2332} 2333 2334static int 2335freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id, 2336 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp) 2337{ 2338 struct timespec32 rmt32, rqt32; 2339 struct timespec rmt, rqt; 2340 int error, error2; 2341 2342 error = copyin(ua_rqtp, &rqt32, sizeof(rqt32)); 2343 if (error) 2344 return (error); 2345 2346 CP(rqt32, rqt, tv_sec); 2347 CP(rqt32, rqt, tv_nsec); 2348 2349 error = kern_clock_nanosleep(td, clock_id, flags, &rqt, &rmt); 2350 if (error == EINTR && ua_rmtp != NULL && (flags & TIMER_ABSTIME) == 0) { 2351 CP(rmt, rmt32, tv_sec); 2352 CP(rmt, rmt32, tv_nsec); 2353 2354 error2 = copyout(&rmt32, ua_rmtp, sizeof(rmt32)); 2355 if (error2 != 0) 2356 error = error2; 2357 } 2358 return (error); 2359} 2360 2361int 2362freebsd32_clock_gettime(struct thread *td, 2363 struct freebsd32_clock_gettime_args *uap) 2364{ 2365 struct timespec ats; 2366 struct timespec32 ats32; 2367 int error; 2368 2369 error = kern_clock_gettime(td, uap->clock_id, &ats); 2370 if (error == 0) { 2371 CP(ats, ats32, tv_sec); 2372 CP(ats, ats32, tv_nsec); 2373 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2374 } 2375 return (error); 2376} 2377 2378int 2379freebsd32_clock_settime(struct thread *td, 2380 struct freebsd32_clock_settime_args *uap) 2381{ 2382 struct timespec ats; 2383 struct timespec32 ats32; 2384 int error; 2385 2386 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2387 if (error) 2388 return (error); 2389 CP(ats32, ats, tv_sec); 2390 CP(ats32, ats, tv_nsec); 2391 2392 return (kern_clock_settime(td, uap->clock_id, &ats)); 2393} 2394 2395int 2396freebsd32_clock_getres(struct thread *td, 2397 struct freebsd32_clock_getres_args *uap) 2398{ 2399 struct timespec ts; 2400 struct timespec32 ts32; 2401 int error; 2402 2403 if (uap->tp == NULL) 2404 return (0); 2405 error = kern_clock_getres(td, uap->clock_id, &ts); 2406 if (error == 0) { 2407 CP(ts, ts32, tv_sec); 2408 CP(ts, ts32, tv_nsec); 2409 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2410 } 2411 return (error); 2412} 2413 2414int freebsd32_ktimer_create(struct thread *td, 2415 struct freebsd32_ktimer_create_args *uap) 2416{ 2417 struct sigevent32 ev32; 2418 struct sigevent ev, *evp; 2419 int error, id; 2420 2421 if (uap->evp == NULL) { 2422 evp = NULL; 2423 } else { 2424 evp = &ev; 2425 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2426 if (error != 0) 2427 return (error); 2428 error = convert_sigevent32(&ev32, &ev); 2429 if (error != 0) 2430 return (error); 2431 } 2432 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2433 if (error == 0) { 2434 error = copyout(&id, uap->timerid, sizeof(int)); 2435 if (error != 0) 2436 kern_ktimer_delete(td, id); 2437 } 2438 return (error); 2439} 2440 2441int 2442freebsd32_ktimer_settime(struct thread *td, 2443 struct freebsd32_ktimer_settime_args *uap) 2444{ 2445 struct itimerspec32 val32, oval32; 2446 struct itimerspec val, oval, *ovalp; 2447 int error; 2448 2449 error = copyin(uap->value, &val32, sizeof(val32)); 2450 if (error != 0) 2451 return (error); 2452 ITS_CP(val32, val); 2453 ovalp = uap->ovalue != NULL ? &oval : NULL; 2454 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2455 if (error == 0 && uap->ovalue != NULL) { 2456 ITS_CP(oval, oval32); 2457 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2458 } 2459 return (error); 2460} 2461 2462int 2463freebsd32_ktimer_gettime(struct thread *td, 2464 struct freebsd32_ktimer_gettime_args *uap) 2465{ 2466 struct itimerspec32 val32; 2467 struct itimerspec val; 2468 int error; 2469 2470 error = kern_ktimer_gettime(td, uap->timerid, &val); 2471 if (error == 0) { 2472 ITS_CP(val, val32); 2473 error = copyout(&val32, uap->value, sizeof(val32)); 2474 } 2475 return (error); 2476} 2477 2478int 2479freebsd32_clock_getcpuclockid2(struct thread *td, 2480 struct freebsd32_clock_getcpuclockid2_args *uap) 2481{ 2482 clockid_t clk_id; 2483 int error; 2484 2485 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2486 uap->which, &clk_id); 2487 if (error == 0) 2488 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2489 return (error); 2490} 2491 2492int 2493freebsd32_thr_new(struct thread *td, 2494 struct freebsd32_thr_new_args *uap) 2495{ 2496 struct thr_param32 param32; 2497 struct thr_param param; 2498 int error; 2499 2500 if (uap->param_size < 0 || 2501 uap->param_size > sizeof(struct thr_param32)) 2502 return (EINVAL); 2503 bzero(¶m, sizeof(struct thr_param)); 2504 bzero(¶m32, sizeof(struct thr_param32)); 2505 error = copyin(uap->param, ¶m32, uap->param_size); 2506 if (error != 0) 2507 return (error); 2508 param.start_func = PTRIN(param32.start_func); 2509 param.arg = PTRIN(param32.arg); 2510 param.stack_base = PTRIN(param32.stack_base); 2511 param.stack_size = param32.stack_size; 2512 param.tls_base = PTRIN(param32.tls_base); 2513 param.tls_size = param32.tls_size; 2514 param.child_tid = PTRIN(param32.child_tid); 2515 param.parent_tid = PTRIN(param32.parent_tid); 2516 param.flags = param32.flags; 2517 param.rtp = PTRIN(param32.rtp); 2518 param.spare[0] = PTRIN(param32.spare[0]); 2519 param.spare[1] = PTRIN(param32.spare[1]); 2520 param.spare[2] = PTRIN(param32.spare[2]); 2521 2522 return (kern_thr_new(td, ¶m)); 2523} 2524 2525int 2526freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2527{ 2528 struct timespec32 ts32; 2529 struct timespec ts, *tsp; 2530 int error; 2531 2532 error = 0; 2533 tsp = NULL; 2534 if (uap->timeout != NULL) { 2535 error = copyin((const void *)uap->timeout, (void *)&ts32, 2536 sizeof(struct timespec32)); 2537 if (error != 0) 2538 return (error); 2539 ts.tv_sec = ts32.tv_sec; 2540 ts.tv_nsec = ts32.tv_nsec; 2541 tsp = &ts; 2542 } 2543 return (kern_thr_suspend(td, tsp)); 2544} 2545 2546void 2547siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2548{ 2549 bzero(dst, sizeof(*dst)); 2550 dst->si_signo = src->si_signo; 2551 dst->si_errno = src->si_errno; 2552 dst->si_code = src->si_code; 2553 dst->si_pid = src->si_pid; 2554 dst->si_uid = src->si_uid; 2555 dst->si_status = src->si_status; 2556 dst->si_addr = (uintptr_t)src->si_addr; 2557 dst->si_value.sival_int = src->si_value.sival_int; 2558 dst->si_timerid = src->si_timerid; 2559 dst->si_overrun = src->si_overrun; 2560} 2561 2562#ifndef _FREEBSD32_SYSPROTO_H_ 2563struct freebsd32_sigqueue_args { 2564 pid_t pid; 2565 int signum; 2566 /* union sigval32 */ int value; 2567}; 2568#endif 2569int 2570freebsd32_sigqueue(struct thread *td, struct freebsd32_sigqueue_args *uap) 2571{ 2572 union sigval sv; 2573 2574 /* 2575 * On 32-bit ABIs, sival_int and sival_ptr are the same. 2576 * On 64-bit little-endian ABIs, the low bits are the same. 2577 * In 64-bit big-endian ABIs, sival_int overlaps with 2578 * sival_ptr's HIGH bits. We choose to support sival_int 2579 * rather than sival_ptr in this case as it seems to be 2580 * more common. 2581 */ 2582 bzero(&sv, sizeof(sv)); 2583 sv.sival_int = uap->value; 2584 2585 return (kern_sigqueue(td, uap->pid, uap->signum, &sv)); 2586} 2587 2588int 2589freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2590{ 2591 struct timespec32 ts32; 2592 struct timespec ts; 2593 struct timespec *timeout; 2594 sigset_t set; 2595 ksiginfo_t ksi; 2596 struct siginfo32 si32; 2597 int error; 2598 2599 if (uap->timeout) { 2600 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2601 if (error) 2602 return (error); 2603 ts.tv_sec = ts32.tv_sec; 2604 ts.tv_nsec = ts32.tv_nsec; 2605 timeout = &ts; 2606 } else 2607 timeout = NULL; 2608 2609 error = copyin(uap->set, &set, sizeof(set)); 2610 if (error) 2611 return (error); 2612 2613 error = kern_sigtimedwait(td, set, &ksi, timeout); 2614 if (error) 2615 return (error); 2616 2617 if (uap->info) { 2618 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2619 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2620 } 2621 2622 if (error == 0) 2623 td->td_retval[0] = ksi.ksi_signo; 2624 return (error); 2625} 2626 2627/* 2628 * MPSAFE 2629 */ 2630int 2631freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2632{ 2633 ksiginfo_t ksi; 2634 struct siginfo32 si32; 2635 sigset_t set; 2636 int error; 2637 2638 error = copyin(uap->set, &set, sizeof(set)); 2639 if (error) 2640 return (error); 2641 2642 error = kern_sigtimedwait(td, set, &ksi, NULL); 2643 if (error) 2644 return (error); 2645 2646 if (uap->info) { 2647 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2648 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2649 } 2650 if (error == 0) 2651 td->td_retval[0] = ksi.ksi_signo; 2652 return (error); 2653} 2654 2655int 2656freebsd32_cpuset_setid(struct thread *td, 2657 struct freebsd32_cpuset_setid_args *uap) 2658{ 2659 2660 return (kern_cpuset_setid(td, uap->which, 2661 PAIR32TO64(id_t, uap->id), uap->setid)); 2662} 2663 2664int 2665freebsd32_cpuset_getid(struct thread *td, 2666 struct freebsd32_cpuset_getid_args *uap) 2667{ 2668 2669 return (kern_cpuset_getid(td, uap->level, uap->which, 2670 PAIR32TO64(id_t, uap->id), uap->setid)); 2671} 2672 2673int 2674freebsd32_cpuset_getaffinity(struct thread *td, 2675 struct freebsd32_cpuset_getaffinity_args *uap) 2676{ 2677 2678 return (kern_cpuset_getaffinity(td, uap->level, uap->which, 2679 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask)); 2680} 2681 2682int 2683freebsd32_cpuset_setaffinity(struct thread *td, 2684 struct freebsd32_cpuset_setaffinity_args *uap) 2685{ 2686 2687 return (kern_cpuset_setaffinity(td, uap->level, uap->which, 2688 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask)); 2689} 2690 2691int 2692freebsd32_nmount(struct thread *td, 2693 struct freebsd32_nmount_args /* { 2694 struct iovec *iovp; 2695 unsigned int iovcnt; 2696 int flags; 2697 } */ *uap) 2698{ 2699 struct uio *auio; 2700 uint64_t flags; 2701 int error; 2702 2703 /* 2704 * Mount flags are now 64-bits. On 32-bit archtectures only 2705 * 32-bits are passed in, but from here on everything handles 2706 * 64-bit flags correctly. 2707 */ 2708 flags = uap->flags; 2709 2710 AUDIT_ARG_FFLAGS(flags); 2711 2712 /* 2713 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2714 * userspace to set this flag, but we must filter it out if we want 2715 * MNT_UPDATE on the root file system to work. 2716 * MNT_ROOTFS should only be set by the kernel when mounting its 2717 * root file system. 2718 */ 2719 flags &= ~MNT_ROOTFS; 2720 2721 /* 2722 * check that we have an even number of iovec's 2723 * and that we have at least two options. 2724 */ 2725 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2726 return (EINVAL); 2727 2728 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2729 if (error) 2730 return (error); 2731 error = vfs_donmount(td, flags, auio); 2732 2733 free(auio, M_IOV); 2734 return error; 2735} 2736 2737#if 0 2738int 2739freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2740{ 2741 struct yyy32 *p32, s32; 2742 struct yyy *p = NULL, s; 2743 struct xxx_arg ap; 2744 int error; 2745 2746 if (uap->zzz) { 2747 error = copyin(uap->zzz, &s32, sizeof(s32)); 2748 if (error) 2749 return (error); 2750 /* translate in */ 2751 p = &s; 2752 } 2753 error = kern_xxx(td, p); 2754 if (error) 2755 return (error); 2756 if (uap->zzz) { 2757 /* translate out */ 2758 error = copyout(&s32, p32, sizeof(s32)); 2759 } 2760 return (error); 2761} 2762#endif 2763 2764int 2765syscall32_register(int *offset, struct sysent *new_sysent, 2766 struct sysent *old_sysent, int flags) 2767{ 2768 2769 if ((flags & ~SY_THR_STATIC) != 0) 2770 return (EINVAL); 2771 2772 if (*offset == NO_SYSCALL) { 2773 int i; 2774 2775 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2776 if (freebsd32_sysent[i].sy_call == 2777 (sy_call_t *)lkmnosys) 2778 break; 2779 if (i == SYS_MAXSYSCALL) 2780 return (ENFILE); 2781 *offset = i; 2782 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2783 return (EINVAL); 2784 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2785 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2786 return (EEXIST); 2787 2788 *old_sysent = freebsd32_sysent[*offset]; 2789 freebsd32_sysent[*offset] = *new_sysent; 2790 atomic_store_rel_32(&freebsd32_sysent[*offset].sy_thrcnt, flags); 2791 return (0); 2792} 2793 2794int 2795syscall32_deregister(int *offset, struct sysent *old_sysent) 2796{ 2797 2798 if (*offset == 0) 2799 return (0); 2800 2801 freebsd32_sysent[*offset] = *old_sysent; 2802 return (0); 2803} 2804 2805int 2806syscall32_module_handler(struct module *mod, int what, void *arg) 2807{ 2808 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2809 modspecific_t ms; 2810 int error; 2811 2812 switch (what) { 2813 case MOD_LOAD: 2814 error = syscall32_register(data->offset, data->new_sysent, 2815 &data->old_sysent, SY_THR_STATIC_KLD); 2816 if (error) { 2817 /* Leave a mark so we know to safely unload below. */ 2818 data->offset = NULL; 2819 return error; 2820 } 2821 ms.intval = *data->offset; 2822 MOD_XLOCK; 2823 module_setspecific(mod, &ms); 2824 MOD_XUNLOCK; 2825 if (data->chainevh) 2826 error = data->chainevh(mod, what, data->chainarg); 2827 return (error); 2828 case MOD_UNLOAD: 2829 /* 2830 * MOD_LOAD failed, so just return without calling the 2831 * chained handler since we didn't pass along the MOD_LOAD 2832 * event. 2833 */ 2834 if (data->offset == NULL) 2835 return (0); 2836 if (data->chainevh) { 2837 error = data->chainevh(mod, what, data->chainarg); 2838 if (error) 2839 return (error); 2840 } 2841 error = syscall32_deregister(data->offset, &data->old_sysent); 2842 return (error); 2843 default: 2844 error = EOPNOTSUPP; 2845 if (data->chainevh) 2846 error = data->chainevh(mod, what, data->chainarg); 2847 return (error); 2848 } 2849} 2850 2851int 2852syscall32_helper_register(struct syscall_helper_data *sd, int flags) 2853{ 2854 struct syscall_helper_data *sd1; 2855 int error; 2856 2857 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2858 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2859 &sd1->old_sysent, flags); 2860 if (error != 0) { 2861 syscall32_helper_unregister(sd); 2862 return (error); 2863 } 2864 sd1->registered = 1; 2865 } 2866 return (0); 2867} 2868 2869int 2870syscall32_helper_unregister(struct syscall_helper_data *sd) 2871{ 2872 struct syscall_helper_data *sd1; 2873 2874 for (sd1 = sd; sd1->registered != 0; sd1++) { 2875 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2876 sd1->registered = 0; 2877 } 2878 return (0); 2879} 2880 2881register_t * 2882freebsd32_copyout_strings(struct image_params *imgp) 2883{ 2884 int argc, envc, i; 2885 u_int32_t *vectp; 2886 char *stringp; 2887 uintptr_t destp; 2888 u_int32_t *stack_base; 2889 struct freebsd32_ps_strings *arginfo; 2890 char canary[sizeof(long) * 8]; 2891 int32_t pagesizes32[MAXPAGESIZES]; 2892 size_t execpath_len; 2893 int szsigcode; 2894 2895 /* 2896 * Calculate string base and vector table pointers. 2897 * Also deal with signal trampoline code for this exec type. 2898 */ 2899 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2900 execpath_len = strlen(imgp->execpath) + 1; 2901 else 2902 execpath_len = 0; 2903 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2904 sv_psstrings; 2905 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2906 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2907 else 2908 szsigcode = 0; 2909 destp = (uintptr_t)arginfo; 2910 2911 /* 2912 * install sigcode 2913 */ 2914 if (szsigcode != 0) { 2915 destp -= szsigcode; 2916 destp = rounddown2(destp, sizeof(uint32_t)); 2917 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2918 szsigcode); 2919 } 2920 2921 /* 2922 * Copy the image path for the rtld. 2923 */ 2924 if (execpath_len != 0) { 2925 destp -= execpath_len; 2926 imgp->execpathp = destp; 2927 copyout(imgp->execpath, (void *)destp, execpath_len); 2928 } 2929 2930 /* 2931 * Prepare the canary for SSP. 2932 */ 2933 arc4rand(canary, sizeof(canary), 0); 2934 destp -= sizeof(canary); 2935 imgp->canary = destp; 2936 copyout(canary, (void *)destp, sizeof(canary)); 2937 imgp->canarylen = sizeof(canary); 2938 2939 /* 2940 * Prepare the pagesizes array. 2941 */ 2942 for (i = 0; i < MAXPAGESIZES; i++) 2943 pagesizes32[i] = (uint32_t)pagesizes[i]; 2944 destp -= sizeof(pagesizes32); 2945 destp = rounddown2(destp, sizeof(uint32_t)); 2946 imgp->pagesizes = destp; 2947 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2948 imgp->pagesizeslen = sizeof(pagesizes32); 2949 2950 destp -= ARG_MAX - imgp->args->stringspace; 2951 destp = rounddown2(destp, sizeof(uint32_t)); 2952 2953 vectp = (uint32_t *)destp; 2954 if (imgp->auxargs) { 2955 /* 2956 * Allocate room on the stack for the ELF auxargs 2957 * array. It has up to AT_COUNT entries. 2958 */ 2959 vectp -= howmany(AT_COUNT * sizeof(Elf32_Auxinfo), 2960 sizeof(*vectp)); 2961 } 2962 2963 /* 2964 * Allocate room for the argv[] and env vectors including the 2965 * terminating NULL pointers. 2966 */ 2967 vectp -= imgp->args->argc + 1 + imgp->args->envc + 1; 2968 2969 /* 2970 * vectp also becomes our initial stack base 2971 */ 2972 stack_base = vectp; 2973 2974 stringp = imgp->args->begin_argv; 2975 argc = imgp->args->argc; 2976 envc = imgp->args->envc; 2977 /* 2978 * Copy out strings - arguments and environment. 2979 */ 2980 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2981 2982 /* 2983 * Fill in "ps_strings" struct for ps, w, etc. 2984 */ 2985 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2986 suword32(&arginfo->ps_nargvstr, argc); 2987 2988 /* 2989 * Fill in argument portion of vector table. 2990 */ 2991 for (; argc > 0; --argc) { 2992 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2993 while (*stringp++ != 0) 2994 destp++; 2995 destp++; 2996 } 2997 2998 /* a null vector table pointer separates the argp's from the envp's */ 2999 suword32(vectp++, 0); 3000 3001 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 3002 suword32(&arginfo->ps_nenvstr, envc); 3003 3004 /* 3005 * Fill in environment portion of vector table. 3006 */ 3007 for (; envc > 0; --envc) { 3008 suword32(vectp++, (u_int32_t)(intptr_t)destp); 3009 while (*stringp++ != 0) 3010 destp++; 3011 destp++; 3012 } 3013 3014 /* end of vector table is a null pointer */ 3015 suword32(vectp, 0); 3016 3017 return ((register_t *)stack_base); 3018} 3019 3020int 3021freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 3022{ 3023 struct kld_file_stat *stat; 3024 struct kld32_file_stat *stat32; 3025 int error, version; 3026 3027 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 3028 != 0) 3029 return (error); 3030 if (version != sizeof(struct kld32_file_stat_1) && 3031 version != sizeof(struct kld32_file_stat)) 3032 return (EINVAL); 3033 3034 stat = malloc(sizeof(*stat), M_TEMP, M_WAITOK | M_ZERO); 3035 stat32 = malloc(sizeof(*stat32), M_TEMP, M_WAITOK | M_ZERO); 3036 error = kern_kldstat(td, uap->fileid, stat); 3037 if (error == 0) { 3038 bcopy(&stat->name[0], &stat32->name[0], sizeof(stat->name)); 3039 CP(*stat, *stat32, refs); 3040 CP(*stat, *stat32, id); 3041 PTROUT_CP(*stat, *stat32, address); 3042 CP(*stat, *stat32, size); 3043 bcopy(&stat->pathname[0], &stat32->pathname[0], 3044 sizeof(stat->pathname)); 3045 stat32->version = version; 3046 error = copyout(stat32, uap->stat, version); 3047 } 3048 free(stat, M_TEMP); 3049 free(stat32, M_TEMP); 3050 return (error); 3051} 3052 3053int 3054freebsd32_posix_fallocate(struct thread *td, 3055 struct freebsd32_posix_fallocate_args *uap) 3056{ 3057 int error; 3058 3059 error = kern_posix_fallocate(td, uap->fd, 3060 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 3061 return (kern_posix_error(td, error)); 3062} 3063 3064int 3065freebsd32_posix_fadvise(struct thread *td, 3066 struct freebsd32_posix_fadvise_args *uap) 3067{ 3068 int error; 3069 3070 error = kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset), 3071 PAIR32TO64(off_t, uap->len), uap->advice); 3072 return (kern_posix_error(td, error)); 3073} 3074 3075int 3076convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 3077{ 3078 3079 CP(*sig32, *sig, sigev_notify); 3080 switch (sig->sigev_notify) { 3081 case SIGEV_NONE: 3082 break; 3083 case SIGEV_THREAD_ID: 3084 CP(*sig32, *sig, sigev_notify_thread_id); 3085 /* FALLTHROUGH */ 3086 case SIGEV_SIGNAL: 3087 CP(*sig32, *sig, sigev_signo); 3088 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3089 break; 3090 case SIGEV_KEVENT: 3091 CP(*sig32, *sig, sigev_notify_kqueue); 3092 CP(*sig32, *sig, sigev_notify_kevent_flags); 3093 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3094 break; 3095 default: 3096 return (EINVAL); 3097 } 3098 return (0); 3099} 3100 3101int 3102freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3103{ 3104 void *data; 3105 union { 3106 struct procctl_reaper_status rs; 3107 struct procctl_reaper_pids rp; 3108 struct procctl_reaper_kill rk; 3109 } x; 3110 union { 3111 struct procctl_reaper_pids32 rp; 3112 } x32; 3113 int error, error1, flags, signum; 3114 3115 switch (uap->com) { 3116 case PROC_SPROTECT: 3117 case PROC_STACKGAP_CTL: 3118 case PROC_TRACE_CTL: 3119 case PROC_TRAPCAP_CTL: 3120 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3121 if (error != 0) 3122 return (error); 3123 data = &flags; 3124 break; 3125 case PROC_REAP_ACQUIRE: 3126 case PROC_REAP_RELEASE: 3127 if (uap->data != NULL) 3128 return (EINVAL); 3129 data = NULL; 3130 break; 3131 case PROC_REAP_STATUS: 3132 data = &x.rs; 3133 break; 3134 case PROC_REAP_GETPIDS: 3135 error = copyin(uap->data, &x32.rp, sizeof(x32.rp)); 3136 if (error != 0) 3137 return (error); 3138 CP(x32.rp, x.rp, rp_count); 3139 PTRIN_CP(x32.rp, x.rp, rp_pids); 3140 data = &x.rp; 3141 break; 3142 case PROC_REAP_KILL: 3143 error = copyin(uap->data, &x.rk, sizeof(x.rk)); 3144 if (error != 0) 3145 return (error); 3146 data = &x.rk; 3147 break; 3148 case PROC_STACKGAP_STATUS: 3149 case PROC_TRACE_STATUS: 3150 case PROC_TRAPCAP_STATUS: 3151 data = &flags; 3152 break; 3153 case PROC_PDEATHSIG_CTL: 3154 error = copyin(uap->data, &signum, sizeof(signum)); 3155 if (error != 0) 3156 return (error); 3157 data = &signum; 3158 break; 3159 case PROC_PDEATHSIG_STATUS: 3160 data = &signum; 3161 break; 3162 default: 3163 return (EINVAL); 3164 } 3165 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3166 uap->com, data); 3167 switch (uap->com) { 3168 case PROC_REAP_STATUS: 3169 if (error == 0) 3170 error = copyout(&x.rs, uap->data, sizeof(x.rs)); 3171 break; 3172 case PROC_REAP_KILL: 3173 error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); 3174 if (error == 0) 3175 error = error1; 3176 break; 3177 case PROC_STACKGAP_STATUS: 3178 case PROC_TRACE_STATUS: 3179 case PROC_TRAPCAP_STATUS: 3180 if (error == 0) 3181 error = copyout(&flags, uap->data, sizeof(flags)); 3182 break; 3183 case PROC_PDEATHSIG_STATUS: 3184 if (error == 0) 3185 error = copyout(&signum, uap->data, sizeof(signum)); 3186 break; 3187 } 3188 return (error); 3189} 3190 3191int 3192freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 3193{ 3194 long tmp; 3195 3196 switch (uap->cmd) { 3197 /* 3198 * Do unsigned conversion for arg when operation 3199 * interprets it as flags or pointer. 3200 */ 3201 case F_SETLK_REMOTE: 3202 case F_SETLKW: 3203 case F_SETLK: 3204 case F_GETLK: 3205 case F_SETFD: 3206 case F_SETFL: 3207 case F_OGETLK: 3208 case F_OSETLK: 3209 case F_OSETLKW: 3210 tmp = (unsigned int)(uap->arg); 3211 break; 3212 default: 3213 tmp = uap->arg; 3214 break; 3215 } 3216 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 3217} 3218 3219int 3220freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap) 3221{ 3222 struct timespec32 ts32; 3223 struct timespec ts, *tsp; 3224 sigset_t set, *ssp; 3225 int error; 3226 3227 if (uap->ts != NULL) { 3228 error = copyin(uap->ts, &ts32, sizeof(ts32)); 3229 if (error != 0) 3230 return (error); 3231 CP(ts32, ts, tv_sec); 3232 CP(ts32, ts, tv_nsec); 3233 tsp = &ts; 3234 } else 3235 tsp = NULL; 3236 if (uap->set != NULL) { 3237 error = copyin(uap->set, &set, sizeof(set)); 3238 if (error != 0) 3239 return (error); 3240 ssp = &set; 3241 } else 3242 ssp = NULL; 3243 3244 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp)); 3245} 3246 3247int 3248freebsd32_sched_rr_get_interval(struct thread *td, 3249 struct freebsd32_sched_rr_get_interval_args *uap) 3250{ 3251 struct timespec ts; 3252 struct timespec32 ts32; 3253 int error; 3254 3255 error = kern_sched_rr_get_interval(td, uap->pid, &ts); 3256 if (error == 0) { 3257 CP(ts, ts32, tv_sec); 3258 CP(ts, ts32, tv_nsec); 3259 error = copyout(&ts32, uap->interval, sizeof(ts32)); 3260 } 3261 return (error); 3262} 3263