freebsd32_misc.c revision 314334
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 314334 2017-02-27 11:27:46Z kib $"); 29 30#include "opt_compat.h" 31#include "opt_inet.h" 32#include "opt_inet6.h" 33 34#define __ELF_WORD_SIZE 32 35 36#include <sys/param.h> 37#include <sys/bus.h> 38#include <sys/capsicum.h> 39#include <sys/clock.h> 40#include <sys/exec.h> 41#include <sys/fcntl.h> 42#include <sys/filedesc.h> 43#include <sys/imgact.h> 44#include <sys/jail.h> 45#include <sys/kernel.h> 46#include <sys/limits.h> 47#include <sys/linker.h> 48#include <sys/lock.h> 49#include <sys/malloc.h> 50#include <sys/file.h> /* Must come after sys/malloc.h */ 51#include <sys/imgact.h> 52#include <sys/mbuf.h> 53#include <sys/mman.h> 54#include <sys/module.h> 55#include <sys/mount.h> 56#include <sys/mutex.h> 57#include <sys/namei.h> 58#include <sys/proc.h> 59#include <sys/procctl.h> 60#include <sys/reboot.h> 61#include <sys/resource.h> 62#include <sys/resourcevar.h> 63#include <sys/selinfo.h> 64#include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 65#include <sys/pipe.h> /* Must come after sys/selinfo.h */ 66#include <sys/signal.h> 67#include <sys/signalvar.h> 68#include <sys/socket.h> 69#include <sys/socketvar.h> 70#include <sys/stat.h> 71#include <sys/syscall.h> 72#include <sys/syscallsubr.h> 73#include <sys/sysctl.h> 74#include <sys/sysent.h> 75#include <sys/sysproto.h> 76#include <sys/systm.h> 77#include <sys/thr.h> 78#include <sys/unistd.h> 79#include <sys/ucontext.h> 80#include <sys/vnode.h> 81#include <sys/wait.h> 82#include <sys/ipc.h> 83#include <sys/msg.h> 84#include <sys/sem.h> 85#include <sys/shm.h> 86 87#ifdef INET 88#include <netinet/in.h> 89#endif 90 91#include <vm/vm.h> 92#include <vm/vm_param.h> 93#include <vm/pmap.h> 94#include <vm/vm_map.h> 95#include <vm/vm_object.h> 96#include <vm/vm_extern.h> 97 98#include <machine/cpu.h> 99#include <machine/elf.h> 100 101#include <security/audit/audit.h> 102 103#include <compat/freebsd32/freebsd32_util.h> 104#include <compat/freebsd32/freebsd32.h> 105#include <compat/freebsd32/freebsd32_ipc.h> 106#include <compat/freebsd32/freebsd32_misc.h> 107#include <compat/freebsd32/freebsd32_signal.h> 108#include <compat/freebsd32/freebsd32_proto.h> 109 110FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD"); 111 112#ifndef __mips__ 113CTASSERT(sizeof(struct timeval32) == 8); 114CTASSERT(sizeof(struct timespec32) == 8); 115CTASSERT(sizeof(struct itimerval32) == 16); 116#endif 117CTASSERT(sizeof(struct statfs32) == 256); 118#ifndef __mips__ 119CTASSERT(sizeof(struct rusage32) == 72); 120#endif 121CTASSERT(sizeof(struct sigaltstack32) == 12); 122CTASSERT(sizeof(struct kevent32) == 20); 123CTASSERT(sizeof(struct iovec32) == 8); 124CTASSERT(sizeof(struct msghdr32) == 28); 125#ifndef __mips__ 126CTASSERT(sizeof(struct stat32) == 96); 127#endif 128CTASSERT(sizeof(struct sigaction32) == 24); 129 130static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 131static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 132 133void 134freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 135{ 136 137 TV_CP(*s, *s32, ru_utime); 138 TV_CP(*s, *s32, ru_stime); 139 CP(*s, *s32, ru_maxrss); 140 CP(*s, *s32, ru_ixrss); 141 CP(*s, *s32, ru_idrss); 142 CP(*s, *s32, ru_isrss); 143 CP(*s, *s32, ru_minflt); 144 CP(*s, *s32, ru_majflt); 145 CP(*s, *s32, ru_nswap); 146 CP(*s, *s32, ru_inblock); 147 CP(*s, *s32, ru_oublock); 148 CP(*s, *s32, ru_msgsnd); 149 CP(*s, *s32, ru_msgrcv); 150 CP(*s, *s32, ru_nsignals); 151 CP(*s, *s32, ru_nvcsw); 152 CP(*s, *s32, ru_nivcsw); 153} 154 155int 156freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 157{ 158 int error, status; 159 struct rusage32 ru32; 160 struct rusage ru, *rup; 161 162 if (uap->rusage != NULL) 163 rup = &ru; 164 else 165 rup = NULL; 166 error = kern_wait(td, uap->pid, &status, uap->options, rup); 167 if (error) 168 return (error); 169 if (uap->status != NULL) 170 error = copyout(&status, uap->status, sizeof(status)); 171 if (uap->rusage != NULL && error == 0) { 172 freebsd32_rusage_out(&ru, &ru32); 173 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 174 } 175 return (error); 176} 177 178int 179freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap) 180{ 181 struct wrusage32 wru32; 182 struct __wrusage wru, *wrup; 183 struct siginfo32 si32; 184 struct __siginfo si, *sip; 185 int error, status; 186 187 if (uap->wrusage != NULL) 188 wrup = &wru; 189 else 190 wrup = NULL; 191 if (uap->info != NULL) { 192 sip = &si; 193 bzero(sip, sizeof(*sip)); 194 } else 195 sip = NULL; 196 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id), 197 &status, uap->options, wrup, sip); 198 if (error != 0) 199 return (error); 200 if (uap->status != NULL) 201 error = copyout(&status, uap->status, sizeof(status)); 202 if (uap->wrusage != NULL && error == 0) { 203 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self); 204 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children); 205 error = copyout(&wru32, uap->wrusage, sizeof(wru32)); 206 } 207 if (uap->info != NULL && error == 0) { 208 siginfo_to_siginfo32 (&si, &si32); 209 error = copyout(&si32, uap->info, sizeof(si32)); 210 } 211 return (error); 212} 213 214#ifdef COMPAT_FREEBSD4 215static void 216copy_statfs(struct statfs *in, struct statfs32 *out) 217{ 218 219 statfs_scale_blocks(in, INT32_MAX); 220 bzero(out, sizeof(*out)); 221 CP(*in, *out, f_bsize); 222 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 223 CP(*in, *out, f_blocks); 224 CP(*in, *out, f_bfree); 225 CP(*in, *out, f_bavail); 226 out->f_files = MIN(in->f_files, INT32_MAX); 227 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 228 CP(*in, *out, f_fsid); 229 CP(*in, *out, f_owner); 230 CP(*in, *out, f_type); 231 CP(*in, *out, f_flags); 232 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 233 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 234 strlcpy(out->f_fstypename, 235 in->f_fstypename, MFSNAMELEN); 236 strlcpy(out->f_mntonname, 237 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 238 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 239 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 240 strlcpy(out->f_mntfromname, 241 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 242} 243#endif 244 245#ifdef COMPAT_FREEBSD4 246int 247freebsd4_freebsd32_getfsstat(struct thread *td, 248 struct freebsd4_freebsd32_getfsstat_args *uap) 249{ 250 struct statfs *buf, *sp; 251 struct statfs32 stat32; 252 size_t count, size, copycount; 253 int error; 254 255 count = uap->bufsize / sizeof(struct statfs32); 256 size = count * sizeof(struct statfs); 257 error = kern_getfsstat(td, &buf, size, &count, UIO_SYSSPACE, uap->mode); 258 if (size > 0) { 259 sp = buf; 260 copycount = count; 261 while (copycount > 0 && error == 0) { 262 copy_statfs(sp, &stat32); 263 error = copyout(&stat32, uap->buf, sizeof(stat32)); 264 sp++; 265 uap->buf++; 266 copycount--; 267 } 268 free(buf, M_STATFS); 269 } 270 if (error == 0) 271 td->td_retval[0] = count; 272 return (error); 273} 274#endif 275 276#ifdef COMPAT_FREEBSD10 277int 278freebsd10_freebsd32_pipe(struct thread *td, 279 struct freebsd10_freebsd32_pipe_args *uap) { 280 281 return (freebsd10_pipe(td, (struct freebsd10_pipe_args*)uap)); 282} 283#endif 284 285int 286freebsd32_sigaltstack(struct thread *td, 287 struct freebsd32_sigaltstack_args *uap) 288{ 289 struct sigaltstack32 s32; 290 struct sigaltstack ss, oss, *ssp; 291 int error; 292 293 if (uap->ss != NULL) { 294 error = copyin(uap->ss, &s32, sizeof(s32)); 295 if (error) 296 return (error); 297 PTRIN_CP(s32, ss, ss_sp); 298 CP(s32, ss, ss_size); 299 CP(s32, ss, ss_flags); 300 ssp = &ss; 301 } else 302 ssp = NULL; 303 error = kern_sigaltstack(td, ssp, &oss); 304 if (error == 0 && uap->oss != NULL) { 305 PTROUT_CP(oss, s32, ss_sp); 306 CP(oss, s32, ss_size); 307 CP(oss, s32, ss_flags); 308 error = copyout(&s32, uap->oss, sizeof(s32)); 309 } 310 return (error); 311} 312 313/* 314 * Custom version of exec_copyin_args() so that we can translate 315 * the pointers. 316 */ 317int 318freebsd32_exec_copyin_args(struct image_args *args, char *fname, 319 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 320{ 321 char *argp, *envp; 322 u_int32_t *p32, arg; 323 size_t length; 324 int error; 325 326 bzero(args, sizeof(*args)); 327 if (argv == NULL) 328 return (EFAULT); 329 330 /* 331 * Allocate demand-paged memory for the file name, argument, and 332 * environment strings. 333 */ 334 error = exec_alloc_args(args); 335 if (error != 0) 336 return (error); 337 338 /* 339 * Copy the file name. 340 */ 341 if (fname != NULL) { 342 args->fname = args->buf; 343 error = (segflg == UIO_SYSSPACE) ? 344 copystr(fname, args->fname, PATH_MAX, &length) : 345 copyinstr(fname, args->fname, PATH_MAX, &length); 346 if (error != 0) 347 goto err_exit; 348 } else 349 length = 0; 350 351 args->begin_argv = args->buf + length; 352 args->endp = args->begin_argv; 353 args->stringspace = ARG_MAX; 354 355 /* 356 * extract arguments first 357 */ 358 p32 = argv; 359 for (;;) { 360 error = copyin(p32++, &arg, sizeof(arg)); 361 if (error) 362 goto err_exit; 363 if (arg == 0) 364 break; 365 argp = PTRIN(arg); 366 error = copyinstr(argp, args->endp, args->stringspace, &length); 367 if (error) { 368 if (error == ENAMETOOLONG) 369 error = E2BIG; 370 goto err_exit; 371 } 372 args->stringspace -= length; 373 args->endp += length; 374 args->argc++; 375 } 376 377 args->begin_envv = args->endp; 378 379 /* 380 * extract environment strings 381 */ 382 if (envv) { 383 p32 = envv; 384 for (;;) { 385 error = copyin(p32++, &arg, sizeof(arg)); 386 if (error) 387 goto err_exit; 388 if (arg == 0) 389 break; 390 envp = PTRIN(arg); 391 error = copyinstr(envp, args->endp, args->stringspace, 392 &length); 393 if (error) { 394 if (error == ENAMETOOLONG) 395 error = E2BIG; 396 goto err_exit; 397 } 398 args->stringspace -= length; 399 args->endp += length; 400 args->envc++; 401 } 402 } 403 404 return (0); 405 406err_exit: 407 exec_free_args(args); 408 return (error); 409} 410 411int 412freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 413{ 414 struct image_args eargs; 415 struct vmspace *oldvmspace; 416 int error; 417 418 error = pre_execve(td, &oldvmspace); 419 if (error != 0) 420 return (error); 421 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 422 uap->argv, uap->envv); 423 if (error == 0) 424 error = kern_execve(td, &eargs, NULL); 425 post_execve(td, error, oldvmspace); 426 return (error); 427} 428 429int 430freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 431{ 432 struct image_args eargs; 433 struct vmspace *oldvmspace; 434 int error; 435 436 error = pre_execve(td, &oldvmspace); 437 if (error != 0) 438 return (error); 439 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 440 uap->argv, uap->envv); 441 if (error == 0) { 442 eargs.fd = uap->fd; 443 error = kern_execve(td, &eargs, NULL); 444 } 445 post_execve(td, error, oldvmspace); 446 return (error); 447} 448 449int 450freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 451{ 452 int prot; 453 454 prot = uap->prot; 455#if defined(__amd64__) 456 if (i386_read_exec && (prot & PROT_READ) != 0) 457 prot |= PROT_EXEC; 458#endif 459 return (kern_mprotect(td, (uintptr_t)PTRIN(uap->addr), uap->len, 460 prot)); 461} 462 463int 464freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 465{ 466 int prot; 467 468 prot = uap->prot; 469#if defined(__amd64__) 470 if (i386_read_exec && (prot & PROT_READ)) 471 prot |= PROT_EXEC; 472#endif 473 474 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot, 475 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos))); 476} 477 478#ifdef COMPAT_FREEBSD6 479int 480freebsd6_freebsd32_mmap(struct thread *td, 481 struct freebsd6_freebsd32_mmap_args *uap) 482{ 483 int prot; 484 485 prot = uap->prot; 486#if defined(__amd64__) 487 if (i386_read_exec && (prot & PROT_READ)) 488 prot |= PROT_EXEC; 489#endif 490 491 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot, 492 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos))); 493} 494#endif 495 496int 497freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 498{ 499 struct itimerval itv, oitv, *itvp; 500 struct itimerval32 i32; 501 int error; 502 503 if (uap->itv != NULL) { 504 error = copyin(uap->itv, &i32, sizeof(i32)); 505 if (error) 506 return (error); 507 TV_CP(i32, itv, it_interval); 508 TV_CP(i32, itv, it_value); 509 itvp = &itv; 510 } else 511 itvp = NULL; 512 error = kern_setitimer(td, uap->which, itvp, &oitv); 513 if (error || uap->oitv == NULL) 514 return (error); 515 TV_CP(oitv, i32, it_interval); 516 TV_CP(oitv, i32, it_value); 517 return (copyout(&i32, uap->oitv, sizeof(i32))); 518} 519 520int 521freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 522{ 523 struct itimerval itv; 524 struct itimerval32 i32; 525 int error; 526 527 error = kern_getitimer(td, uap->which, &itv); 528 if (error || uap->itv == NULL) 529 return (error); 530 TV_CP(itv, i32, it_interval); 531 TV_CP(itv, i32, it_value); 532 return (copyout(&i32, uap->itv, sizeof(i32))); 533} 534 535int 536freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 537{ 538 struct timeval32 tv32; 539 struct timeval tv, *tvp; 540 int error; 541 542 if (uap->tv != NULL) { 543 error = copyin(uap->tv, &tv32, sizeof(tv32)); 544 if (error) 545 return (error); 546 CP(tv32, tv, tv_sec); 547 CP(tv32, tv, tv_usec); 548 tvp = &tv; 549 } else 550 tvp = NULL; 551 /* 552 * XXX Do pointers need PTRIN()? 553 */ 554 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 555 sizeof(int32_t) * 8)); 556} 557 558int 559freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 560{ 561 struct timespec32 ts32; 562 struct timespec ts; 563 struct timeval tv, *tvp; 564 sigset_t set, *uset; 565 int error; 566 567 if (uap->ts != NULL) { 568 error = copyin(uap->ts, &ts32, sizeof(ts32)); 569 if (error != 0) 570 return (error); 571 CP(ts32, ts, tv_sec); 572 CP(ts32, ts, tv_nsec); 573 TIMESPEC_TO_TIMEVAL(&tv, &ts); 574 tvp = &tv; 575 } else 576 tvp = NULL; 577 if (uap->sm != NULL) { 578 error = copyin(uap->sm, &set, sizeof(set)); 579 if (error != 0) 580 return (error); 581 uset = &set; 582 } else 583 uset = NULL; 584 /* 585 * XXX Do pointers need PTRIN()? 586 */ 587 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 588 uset, sizeof(int32_t) * 8); 589 return (error); 590} 591 592/* 593 * Copy 'count' items into the destination list pointed to by uap->eventlist. 594 */ 595static int 596freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 597{ 598 struct freebsd32_kevent_args *uap; 599 struct kevent32 ks32[KQ_NEVENTS]; 600 int i, error = 0; 601 602 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 603 uap = (struct freebsd32_kevent_args *)arg; 604 605 for (i = 0; i < count; i++) { 606 CP(kevp[i], ks32[i], ident); 607 CP(kevp[i], ks32[i], filter); 608 CP(kevp[i], ks32[i], flags); 609 CP(kevp[i], ks32[i], fflags); 610 CP(kevp[i], ks32[i], data); 611 PTROUT_CP(kevp[i], ks32[i], udata); 612 } 613 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 614 if (error == 0) 615 uap->eventlist += count; 616 return (error); 617} 618 619/* 620 * Copy 'count' items from the list pointed to by uap->changelist. 621 */ 622static int 623freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 624{ 625 struct freebsd32_kevent_args *uap; 626 struct kevent32 ks32[KQ_NEVENTS]; 627 int i, error = 0; 628 629 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 630 uap = (struct freebsd32_kevent_args *)arg; 631 632 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 633 if (error) 634 goto done; 635 uap->changelist += count; 636 637 for (i = 0; i < count; i++) { 638 CP(ks32[i], kevp[i], ident); 639 CP(ks32[i], kevp[i], filter); 640 CP(ks32[i], kevp[i], flags); 641 CP(ks32[i], kevp[i], fflags); 642 CP(ks32[i], kevp[i], data); 643 PTRIN_CP(ks32[i], kevp[i], udata); 644 } 645done: 646 return (error); 647} 648 649int 650freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 651{ 652 struct timespec32 ts32; 653 struct timespec ts, *tsp; 654 struct kevent_copyops k_ops = { uap, 655 freebsd32_kevent_copyout, 656 freebsd32_kevent_copyin}; 657 int error; 658 659 660 if (uap->timeout) { 661 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 662 if (error) 663 return (error); 664 CP(ts32, ts, tv_sec); 665 CP(ts32, ts, tv_nsec); 666 tsp = &ts; 667 } else 668 tsp = NULL; 669 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 670 &k_ops, tsp); 671 return (error); 672} 673 674int 675freebsd32_gettimeofday(struct thread *td, 676 struct freebsd32_gettimeofday_args *uap) 677{ 678 struct timeval atv; 679 struct timeval32 atv32; 680 struct timezone rtz; 681 int error = 0; 682 683 if (uap->tp) { 684 microtime(&atv); 685 CP(atv, atv32, tv_sec); 686 CP(atv, atv32, tv_usec); 687 error = copyout(&atv32, uap->tp, sizeof (atv32)); 688 } 689 if (error == 0 && uap->tzp != NULL) { 690 rtz.tz_minuteswest = tz_minuteswest; 691 rtz.tz_dsttime = tz_dsttime; 692 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 693 } 694 return (error); 695} 696 697int 698freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 699{ 700 struct rusage32 s32; 701 struct rusage s; 702 int error; 703 704 error = kern_getrusage(td, uap->who, &s); 705 if (error) 706 return (error); 707 if (uap->rusage != NULL) { 708 freebsd32_rusage_out(&s, &s32); 709 error = copyout(&s32, uap->rusage, sizeof(s32)); 710 } 711 return (error); 712} 713 714static int 715freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 716{ 717 struct iovec32 iov32; 718 struct iovec *iov; 719 struct uio *uio; 720 u_int iovlen; 721 int error, i; 722 723 *uiop = NULL; 724 if (iovcnt > UIO_MAXIOV) 725 return (EINVAL); 726 iovlen = iovcnt * sizeof(struct iovec); 727 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 728 iov = (struct iovec *)(uio + 1); 729 for (i = 0; i < iovcnt; i++) { 730 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 731 if (error) { 732 free(uio, M_IOV); 733 return (error); 734 } 735 iov[i].iov_base = PTRIN(iov32.iov_base); 736 iov[i].iov_len = iov32.iov_len; 737 } 738 uio->uio_iov = iov; 739 uio->uio_iovcnt = iovcnt; 740 uio->uio_segflg = UIO_USERSPACE; 741 uio->uio_offset = -1; 742 uio->uio_resid = 0; 743 for (i = 0; i < iovcnt; i++) { 744 if (iov->iov_len > INT_MAX - uio->uio_resid) { 745 free(uio, M_IOV); 746 return (EINVAL); 747 } 748 uio->uio_resid += iov->iov_len; 749 iov++; 750 } 751 *uiop = uio; 752 return (0); 753} 754 755int 756freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 757{ 758 struct uio *auio; 759 int error; 760 761 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 762 if (error) 763 return (error); 764 error = kern_readv(td, uap->fd, auio); 765 free(auio, M_IOV); 766 return (error); 767} 768 769int 770freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 771{ 772 struct uio *auio; 773 int error; 774 775 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 776 if (error) 777 return (error); 778 error = kern_writev(td, uap->fd, auio); 779 free(auio, M_IOV); 780 return (error); 781} 782 783int 784freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 785{ 786 struct uio *auio; 787 int error; 788 789 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 790 if (error) 791 return (error); 792 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 793 free(auio, M_IOV); 794 return (error); 795} 796 797int 798freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 799{ 800 struct uio *auio; 801 int error; 802 803 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 804 if (error) 805 return (error); 806 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 807 free(auio, M_IOV); 808 return (error); 809} 810 811int 812freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 813 int error) 814{ 815 struct iovec32 iov32; 816 struct iovec *iov; 817 u_int iovlen; 818 int i; 819 820 *iovp = NULL; 821 if (iovcnt > UIO_MAXIOV) 822 return (error); 823 iovlen = iovcnt * sizeof(struct iovec); 824 iov = malloc(iovlen, M_IOV, M_WAITOK); 825 for (i = 0; i < iovcnt; i++) { 826 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 827 if (error) { 828 free(iov, M_IOV); 829 return (error); 830 } 831 iov[i].iov_base = PTRIN(iov32.iov_base); 832 iov[i].iov_len = iov32.iov_len; 833 } 834 *iovp = iov; 835 return (0); 836} 837 838static int 839freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 840{ 841 struct msghdr32 m32; 842 int error; 843 844 error = copyin(msg32, &m32, sizeof(m32)); 845 if (error) 846 return (error); 847 msg->msg_name = PTRIN(m32.msg_name); 848 msg->msg_namelen = m32.msg_namelen; 849 msg->msg_iov = PTRIN(m32.msg_iov); 850 msg->msg_iovlen = m32.msg_iovlen; 851 msg->msg_control = PTRIN(m32.msg_control); 852 msg->msg_controllen = m32.msg_controllen; 853 msg->msg_flags = m32.msg_flags; 854 return (0); 855} 856 857static int 858freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 859{ 860 struct msghdr32 m32; 861 int error; 862 863 m32.msg_name = PTROUT(msg->msg_name); 864 m32.msg_namelen = msg->msg_namelen; 865 m32.msg_iov = PTROUT(msg->msg_iov); 866 m32.msg_iovlen = msg->msg_iovlen; 867 m32.msg_control = PTROUT(msg->msg_control); 868 m32.msg_controllen = msg->msg_controllen; 869 m32.msg_flags = msg->msg_flags; 870 error = copyout(&m32, msg32, sizeof(m32)); 871 return (error); 872} 873 874#ifndef __mips__ 875#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 876#else 877#define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 878#endif 879#define FREEBSD32_ALIGN(p) \ 880 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 881#define FREEBSD32_CMSG_SPACE(l) \ 882 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 883 884#define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 885 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 886static int 887freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 888{ 889 struct cmsghdr *cm; 890 void *data; 891 socklen_t clen, datalen; 892 int error; 893 caddr_t ctlbuf; 894 int len, maxlen, copylen; 895 struct mbuf *m; 896 error = 0; 897 898 len = msg->msg_controllen; 899 maxlen = msg->msg_controllen; 900 msg->msg_controllen = 0; 901 902 m = control; 903 ctlbuf = msg->msg_control; 904 905 while (m && len > 0) { 906 cm = mtod(m, struct cmsghdr *); 907 clen = m->m_len; 908 909 while (cm != NULL) { 910 911 if (sizeof(struct cmsghdr) > clen || 912 cm->cmsg_len > clen) { 913 error = EINVAL; 914 break; 915 } 916 917 data = CMSG_DATA(cm); 918 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 919 920 /* Adjust message length */ 921 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 922 datalen; 923 924 925 /* Copy cmsghdr */ 926 copylen = sizeof(struct cmsghdr); 927 if (len < copylen) { 928 msg->msg_flags |= MSG_CTRUNC; 929 copylen = len; 930 } 931 932 error = copyout(cm,ctlbuf,copylen); 933 if (error) 934 goto exit; 935 936 ctlbuf += FREEBSD32_ALIGN(copylen); 937 len -= FREEBSD32_ALIGN(copylen); 938 939 if (len <= 0) 940 break; 941 942 /* Copy data */ 943 copylen = datalen; 944 if (len < copylen) { 945 msg->msg_flags |= MSG_CTRUNC; 946 copylen = len; 947 } 948 949 error = copyout(data,ctlbuf,copylen); 950 if (error) 951 goto exit; 952 953 ctlbuf += FREEBSD32_ALIGN(copylen); 954 len -= FREEBSD32_ALIGN(copylen); 955 956 if (CMSG_SPACE(datalen) < clen) { 957 clen -= CMSG_SPACE(datalen); 958 cm = (struct cmsghdr *) 959 ((caddr_t)cm + CMSG_SPACE(datalen)); 960 } else { 961 clen = 0; 962 cm = NULL; 963 } 964 } 965 m = m->m_next; 966 } 967 968 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 969 970exit: 971 return (error); 972 973} 974 975int 976freebsd32_recvmsg(td, uap) 977 struct thread *td; 978 struct freebsd32_recvmsg_args /* { 979 int s; 980 struct msghdr32 *msg; 981 int flags; 982 } */ *uap; 983{ 984 struct msghdr msg; 985 struct msghdr32 m32; 986 struct iovec *uiov, *iov; 987 struct mbuf *control = NULL; 988 struct mbuf **controlp; 989 990 int error; 991 error = copyin(uap->msg, &m32, sizeof(m32)); 992 if (error) 993 return (error); 994 error = freebsd32_copyinmsghdr(uap->msg, &msg); 995 if (error) 996 return (error); 997 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 998 EMSGSIZE); 999 if (error) 1000 return (error); 1001 msg.msg_flags = uap->flags; 1002 uiov = msg.msg_iov; 1003 msg.msg_iov = iov; 1004 1005 controlp = (msg.msg_control != NULL) ? &control : NULL; 1006 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1007 if (error == 0) { 1008 msg.msg_iov = uiov; 1009 1010 if (control != NULL) 1011 error = freebsd32_copy_msg_out(&msg, control); 1012 else 1013 msg.msg_controllen = 0; 1014 1015 if (error == 0) 1016 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1017 } 1018 free(iov, M_IOV); 1019 1020 if (control != NULL) 1021 m_freem(control); 1022 1023 return (error); 1024} 1025 1026/* 1027 * Copy-in the array of control messages constructed using alignment 1028 * and padding suitable for a 32-bit environment and construct an 1029 * mbuf using alignment and padding suitable for a 64-bit kernel. 1030 * The alignment and padding are defined indirectly by CMSG_DATA(), 1031 * CMSG_SPACE() and CMSG_LEN(). 1032 */ 1033static int 1034freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1035{ 1036 struct mbuf *m; 1037 void *md; 1038 u_int idx, len, msglen; 1039 int error; 1040 1041 buflen = FREEBSD32_ALIGN(buflen); 1042 1043 if (buflen > MCLBYTES) 1044 return (EINVAL); 1045 1046 /* 1047 * Iterate over the buffer and get the length of each message 1048 * in there. This has 32-bit alignment and padding. Use it to 1049 * determine the length of these messages when using 64-bit 1050 * alignment and padding. 1051 */ 1052 idx = 0; 1053 len = 0; 1054 while (idx < buflen) { 1055 error = copyin(buf + idx, &msglen, sizeof(msglen)); 1056 if (error) 1057 return (error); 1058 if (msglen < sizeof(struct cmsghdr)) 1059 return (EINVAL); 1060 msglen = FREEBSD32_ALIGN(msglen); 1061 if (idx + msglen > buflen) 1062 return (EINVAL); 1063 idx += msglen; 1064 msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) - 1065 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1066 len += CMSG_ALIGN(msglen); 1067 } 1068 1069 if (len > MCLBYTES) 1070 return (EINVAL); 1071 1072 m = m_get(M_WAITOK, MT_CONTROL); 1073 if (len > MLEN) 1074 MCLGET(m, M_WAITOK); 1075 m->m_len = len; 1076 1077 md = mtod(m, void *); 1078 while (buflen > 0) { 1079 error = copyin(buf, md, sizeof(struct cmsghdr)); 1080 if (error) 1081 break; 1082 msglen = *(u_int *)md; 1083 msglen = FREEBSD32_ALIGN(msglen); 1084 1085 /* Modify the message length to account for alignment. */ 1086 *(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) - 1087 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1088 1089 md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr)); 1090 buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1091 buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1092 1093 msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1094 if (msglen > 0) { 1095 error = copyin(buf, md, msglen); 1096 if (error) 1097 break; 1098 md = (char *)md + CMSG_ALIGN(msglen); 1099 buf += msglen; 1100 buflen -= msglen; 1101 } 1102 } 1103 1104 if (error) 1105 m_free(m); 1106 else 1107 *mp = m; 1108 return (error); 1109} 1110 1111int 1112freebsd32_sendmsg(struct thread *td, 1113 struct freebsd32_sendmsg_args *uap) 1114{ 1115 struct msghdr msg; 1116 struct msghdr32 m32; 1117 struct iovec *iov; 1118 struct mbuf *control = NULL; 1119 struct sockaddr *to = NULL; 1120 int error; 1121 1122 error = copyin(uap->msg, &m32, sizeof(m32)); 1123 if (error) 1124 return (error); 1125 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1126 if (error) 1127 return (error); 1128 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1129 EMSGSIZE); 1130 if (error) 1131 return (error); 1132 msg.msg_iov = iov; 1133 if (msg.msg_name != NULL) { 1134 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1135 if (error) { 1136 to = NULL; 1137 goto out; 1138 } 1139 msg.msg_name = to; 1140 } 1141 1142 if (msg.msg_control) { 1143 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1144 error = EINVAL; 1145 goto out; 1146 } 1147 1148 error = freebsd32_copyin_control(&control, msg.msg_control, 1149 msg.msg_controllen); 1150 if (error) 1151 goto out; 1152 1153 msg.msg_control = NULL; 1154 msg.msg_controllen = 0; 1155 } 1156 1157 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1158 UIO_USERSPACE); 1159 1160out: 1161 free(iov, M_IOV); 1162 if (to) 1163 free(to, M_SONAME); 1164 return (error); 1165} 1166 1167int 1168freebsd32_recvfrom(struct thread *td, 1169 struct freebsd32_recvfrom_args *uap) 1170{ 1171 struct msghdr msg; 1172 struct iovec aiov; 1173 int error; 1174 1175 if (uap->fromlenaddr) { 1176 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1177 sizeof(msg.msg_namelen)); 1178 if (error) 1179 return (error); 1180 } else { 1181 msg.msg_namelen = 0; 1182 } 1183 1184 msg.msg_name = PTRIN(uap->from); 1185 msg.msg_iov = &aiov; 1186 msg.msg_iovlen = 1; 1187 aiov.iov_base = PTRIN(uap->buf); 1188 aiov.iov_len = uap->len; 1189 msg.msg_control = NULL; 1190 msg.msg_flags = uap->flags; 1191 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1192 if (error == 0 && uap->fromlenaddr) 1193 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1194 sizeof (msg.msg_namelen)); 1195 return (error); 1196} 1197 1198int 1199freebsd32_settimeofday(struct thread *td, 1200 struct freebsd32_settimeofday_args *uap) 1201{ 1202 struct timeval32 tv32; 1203 struct timeval tv, *tvp; 1204 struct timezone tz, *tzp; 1205 int error; 1206 1207 if (uap->tv) { 1208 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1209 if (error) 1210 return (error); 1211 CP(tv32, tv, tv_sec); 1212 CP(tv32, tv, tv_usec); 1213 tvp = &tv; 1214 } else 1215 tvp = NULL; 1216 if (uap->tzp) { 1217 error = copyin(uap->tzp, &tz, sizeof(tz)); 1218 if (error) 1219 return (error); 1220 tzp = &tz; 1221 } else 1222 tzp = NULL; 1223 return (kern_settimeofday(td, tvp, tzp)); 1224} 1225 1226int 1227freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1228{ 1229 struct timeval32 s32[2]; 1230 struct timeval s[2], *sp; 1231 int error; 1232 1233 if (uap->tptr != NULL) { 1234 error = copyin(uap->tptr, s32, sizeof(s32)); 1235 if (error) 1236 return (error); 1237 CP(s32[0], s[0], tv_sec); 1238 CP(s32[0], s[0], tv_usec); 1239 CP(s32[1], s[1], tv_sec); 1240 CP(s32[1], s[1], tv_usec); 1241 sp = s; 1242 } else 1243 sp = NULL; 1244 return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE, 1245 sp, UIO_SYSSPACE)); 1246} 1247 1248int 1249freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1250{ 1251 struct timeval32 s32[2]; 1252 struct timeval s[2], *sp; 1253 int error; 1254 1255 if (uap->tptr != NULL) { 1256 error = copyin(uap->tptr, s32, sizeof(s32)); 1257 if (error) 1258 return (error); 1259 CP(s32[0], s[0], tv_sec); 1260 CP(s32[0], s[0], tv_usec); 1261 CP(s32[1], s[1], tv_sec); 1262 CP(s32[1], s[1], tv_usec); 1263 sp = s; 1264 } else 1265 sp = NULL; 1266 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1267} 1268 1269int 1270freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1271{ 1272 struct timeval32 s32[2]; 1273 struct timeval s[2], *sp; 1274 int error; 1275 1276 if (uap->tptr != NULL) { 1277 error = copyin(uap->tptr, s32, sizeof(s32)); 1278 if (error) 1279 return (error); 1280 CP(s32[0], s[0], tv_sec); 1281 CP(s32[0], s[0], tv_usec); 1282 CP(s32[1], s[1], tv_sec); 1283 CP(s32[1], s[1], tv_usec); 1284 sp = s; 1285 } else 1286 sp = NULL; 1287 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1288} 1289 1290int 1291freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1292{ 1293 struct timeval32 s32[2]; 1294 struct timeval s[2], *sp; 1295 int error; 1296 1297 if (uap->times != NULL) { 1298 error = copyin(uap->times, s32, sizeof(s32)); 1299 if (error) 1300 return (error); 1301 CP(s32[0], s[0], tv_sec); 1302 CP(s32[0], s[0], tv_usec); 1303 CP(s32[1], s[1], tv_sec); 1304 CP(s32[1], s[1], tv_usec); 1305 sp = s; 1306 } else 1307 sp = NULL; 1308 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1309 sp, UIO_SYSSPACE)); 1310} 1311 1312int 1313freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap) 1314{ 1315 struct timespec32 ts32[2]; 1316 struct timespec ts[2], *tsp; 1317 int error; 1318 1319 if (uap->times != NULL) { 1320 error = copyin(uap->times, ts32, sizeof(ts32)); 1321 if (error) 1322 return (error); 1323 CP(ts32[0], ts[0], tv_sec); 1324 CP(ts32[0], ts[0], tv_nsec); 1325 CP(ts32[1], ts[1], tv_sec); 1326 CP(ts32[1], ts[1], tv_nsec); 1327 tsp = ts; 1328 } else 1329 tsp = NULL; 1330 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE)); 1331} 1332 1333int 1334freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap) 1335{ 1336 struct timespec32 ts32[2]; 1337 struct timespec ts[2], *tsp; 1338 int error; 1339 1340 if (uap->times != NULL) { 1341 error = copyin(uap->times, ts32, sizeof(ts32)); 1342 if (error) 1343 return (error); 1344 CP(ts32[0], ts[0], tv_sec); 1345 CP(ts32[0], ts[0], tv_nsec); 1346 CP(ts32[1], ts[1], tv_sec); 1347 CP(ts32[1], ts[1], tv_nsec); 1348 tsp = ts; 1349 } else 1350 tsp = NULL; 1351 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE, 1352 tsp, UIO_SYSSPACE, uap->flag)); 1353} 1354 1355int 1356freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1357{ 1358 struct timeval32 tv32; 1359 struct timeval delta, olddelta, *deltap; 1360 int error; 1361 1362 if (uap->delta) { 1363 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1364 if (error) 1365 return (error); 1366 CP(tv32, delta, tv_sec); 1367 CP(tv32, delta, tv_usec); 1368 deltap = δ 1369 } else 1370 deltap = NULL; 1371 error = kern_adjtime(td, deltap, &olddelta); 1372 if (uap->olddelta && error == 0) { 1373 CP(olddelta, tv32, tv_sec); 1374 CP(olddelta, tv32, tv_usec); 1375 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1376 } 1377 return (error); 1378} 1379 1380#ifdef COMPAT_FREEBSD4 1381int 1382freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1383{ 1384 struct statfs32 s32; 1385 struct statfs *sp; 1386 int error; 1387 1388 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1389 error = kern_statfs(td, uap->path, UIO_USERSPACE, sp); 1390 if (error == 0) { 1391 copy_statfs(sp, &s32); 1392 error = copyout(&s32, uap->buf, sizeof(s32)); 1393 } 1394 free(sp, M_STATFS); 1395 return (error); 1396} 1397#endif 1398 1399#ifdef COMPAT_FREEBSD4 1400int 1401freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1402{ 1403 struct statfs32 s32; 1404 struct statfs *sp; 1405 int error; 1406 1407 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1408 error = kern_fstatfs(td, uap->fd, sp); 1409 if (error == 0) { 1410 copy_statfs(sp, &s32); 1411 error = copyout(&s32, uap->buf, sizeof(s32)); 1412 } 1413 free(sp, M_STATFS); 1414 return (error); 1415} 1416#endif 1417 1418#ifdef COMPAT_FREEBSD4 1419int 1420freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1421{ 1422 struct statfs32 s32; 1423 struct statfs *sp; 1424 fhandle_t fh; 1425 int error; 1426 1427 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1428 return (error); 1429 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1430 error = kern_fhstatfs(td, fh, sp); 1431 if (error == 0) { 1432 copy_statfs(sp, &s32); 1433 error = copyout(&s32, uap->buf, sizeof(s32)); 1434 } 1435 free(sp, M_STATFS); 1436 return (error); 1437} 1438#endif 1439 1440int 1441freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1442{ 1443 struct pread_args ap; 1444 1445 ap.fd = uap->fd; 1446 ap.buf = uap->buf; 1447 ap.nbyte = uap->nbyte; 1448 ap.offset = PAIR32TO64(off_t,uap->offset); 1449 return (sys_pread(td, &ap)); 1450} 1451 1452int 1453freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1454{ 1455 struct pwrite_args ap; 1456 1457 ap.fd = uap->fd; 1458 ap.buf = uap->buf; 1459 ap.nbyte = uap->nbyte; 1460 ap.offset = PAIR32TO64(off_t,uap->offset); 1461 return (sys_pwrite(td, &ap)); 1462} 1463 1464#ifdef COMPAT_43 1465int 1466ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1467{ 1468 struct lseek_args nuap; 1469 1470 nuap.fd = uap->fd; 1471 nuap.offset = uap->offset; 1472 nuap.whence = uap->whence; 1473 return (sys_lseek(td, &nuap)); 1474} 1475#endif 1476 1477int 1478freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1479{ 1480 int error; 1481 struct lseek_args ap; 1482 off_t pos; 1483 1484 ap.fd = uap->fd; 1485 ap.offset = PAIR32TO64(off_t,uap->offset); 1486 ap.whence = uap->whence; 1487 error = sys_lseek(td, &ap); 1488 /* Expand the quad return into two parts for eax and edx */ 1489 pos = td->td_uretoff.tdu_off; 1490 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1491 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1492 return error; 1493} 1494 1495int 1496freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1497{ 1498 struct truncate_args ap; 1499 1500 ap.path = uap->path; 1501 ap.length = PAIR32TO64(off_t,uap->length); 1502 return (sys_truncate(td, &ap)); 1503} 1504 1505int 1506freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1507{ 1508 struct ftruncate_args ap; 1509 1510 ap.fd = uap->fd; 1511 ap.length = PAIR32TO64(off_t,uap->length); 1512 return (sys_ftruncate(td, &ap)); 1513} 1514 1515#ifdef COMPAT_43 1516int 1517ofreebsd32_getdirentries(struct thread *td, 1518 struct ofreebsd32_getdirentries_args *uap) 1519{ 1520 struct ogetdirentries_args ap; 1521 int error; 1522 long loff; 1523 int32_t loff_cut; 1524 1525 ap.fd = uap->fd; 1526 ap.buf = uap->buf; 1527 ap.count = uap->count; 1528 ap.basep = NULL; 1529 error = kern_ogetdirentries(td, &ap, &loff); 1530 if (error == 0) { 1531 loff_cut = loff; 1532 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1533 } 1534 return (error); 1535} 1536#endif 1537 1538int 1539freebsd32_getdirentries(struct thread *td, 1540 struct freebsd32_getdirentries_args *uap) 1541{ 1542 long base; 1543 int32_t base32; 1544 int error; 1545 1546 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1547 NULL, UIO_USERSPACE); 1548 if (error) 1549 return (error); 1550 if (uap->basep != NULL) { 1551 base32 = base; 1552 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1553 } 1554 return (error); 1555} 1556 1557#ifdef COMPAT_FREEBSD6 1558/* versions with the 'int pad' argument */ 1559int 1560freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1561{ 1562 struct pread_args ap; 1563 1564 ap.fd = uap->fd; 1565 ap.buf = uap->buf; 1566 ap.nbyte = uap->nbyte; 1567 ap.offset = PAIR32TO64(off_t,uap->offset); 1568 return (sys_pread(td, &ap)); 1569} 1570 1571int 1572freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1573{ 1574 struct pwrite_args ap; 1575 1576 ap.fd = uap->fd; 1577 ap.buf = uap->buf; 1578 ap.nbyte = uap->nbyte; 1579 ap.offset = PAIR32TO64(off_t,uap->offset); 1580 return (sys_pwrite(td, &ap)); 1581} 1582 1583int 1584freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1585{ 1586 int error; 1587 struct lseek_args ap; 1588 off_t pos; 1589 1590 ap.fd = uap->fd; 1591 ap.offset = PAIR32TO64(off_t,uap->offset); 1592 ap.whence = uap->whence; 1593 error = sys_lseek(td, &ap); 1594 /* Expand the quad return into two parts for eax and edx */ 1595 pos = *(off_t *)(td->td_retval); 1596 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1597 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1598 return error; 1599} 1600 1601int 1602freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1603{ 1604 struct truncate_args ap; 1605 1606 ap.path = uap->path; 1607 ap.length = PAIR32TO64(off_t,uap->length); 1608 return (sys_truncate(td, &ap)); 1609} 1610 1611int 1612freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1613{ 1614 struct ftruncate_args ap; 1615 1616 ap.fd = uap->fd; 1617 ap.length = PAIR32TO64(off_t,uap->length); 1618 return (sys_ftruncate(td, &ap)); 1619} 1620#endif /* COMPAT_FREEBSD6 */ 1621 1622struct sf_hdtr32 { 1623 uint32_t headers; 1624 int hdr_cnt; 1625 uint32_t trailers; 1626 int trl_cnt; 1627}; 1628 1629static int 1630freebsd32_do_sendfile(struct thread *td, 1631 struct freebsd32_sendfile_args *uap, int compat) 1632{ 1633 struct sf_hdtr32 hdtr32; 1634 struct sf_hdtr hdtr; 1635 struct uio *hdr_uio, *trl_uio; 1636 struct file *fp; 1637 cap_rights_t rights; 1638 struct iovec32 *iov32; 1639 off_t offset, sbytes; 1640 int error; 1641 1642 offset = PAIR32TO64(off_t, uap->offset); 1643 if (offset < 0) 1644 return (EINVAL); 1645 1646 hdr_uio = trl_uio = NULL; 1647 1648 if (uap->hdtr != NULL) { 1649 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1650 if (error) 1651 goto out; 1652 PTRIN_CP(hdtr32, hdtr, headers); 1653 CP(hdtr32, hdtr, hdr_cnt); 1654 PTRIN_CP(hdtr32, hdtr, trailers); 1655 CP(hdtr32, hdtr, trl_cnt); 1656 1657 if (hdtr.headers != NULL) { 1658 iov32 = PTRIN(hdtr32.headers); 1659 error = freebsd32_copyinuio(iov32, 1660 hdtr32.hdr_cnt, &hdr_uio); 1661 if (error) 1662 goto out; 1663#ifdef COMPAT_FREEBSD4 1664 /* 1665 * In FreeBSD < 5.0 the nbytes to send also included 1666 * the header. If compat is specified subtract the 1667 * header size from nbytes. 1668 */ 1669 if (compat) { 1670 if (uap->nbytes > hdr_uio->uio_resid) 1671 uap->nbytes -= hdr_uio->uio_resid; 1672 else 1673 uap->nbytes = 0; 1674 } 1675#endif 1676 } 1677 if (hdtr.trailers != NULL) { 1678 iov32 = PTRIN(hdtr32.trailers); 1679 error = freebsd32_copyinuio(iov32, 1680 hdtr32.trl_cnt, &trl_uio); 1681 if (error) 1682 goto out; 1683 } 1684 } 1685 1686 AUDIT_ARG_FD(uap->fd); 1687 1688 if ((error = fget_read(td, uap->fd, 1689 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) 1690 goto out; 1691 1692 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1693 uap->nbytes, &sbytes, uap->flags, td); 1694 fdrop(fp, td); 1695 1696 if (uap->sbytes != NULL) 1697 copyout(&sbytes, uap->sbytes, sizeof(off_t)); 1698 1699out: 1700 if (hdr_uio) 1701 free(hdr_uio, M_IOV); 1702 if (trl_uio) 1703 free(trl_uio, M_IOV); 1704 return (error); 1705} 1706 1707#ifdef COMPAT_FREEBSD4 1708int 1709freebsd4_freebsd32_sendfile(struct thread *td, 1710 struct freebsd4_freebsd32_sendfile_args *uap) 1711{ 1712 return (freebsd32_do_sendfile(td, 1713 (struct freebsd32_sendfile_args *)uap, 1)); 1714} 1715#endif 1716 1717int 1718freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1719{ 1720 1721 return (freebsd32_do_sendfile(td, uap, 0)); 1722} 1723 1724static void 1725copy_stat(struct stat *in, struct stat32 *out) 1726{ 1727 1728 CP(*in, *out, st_dev); 1729 CP(*in, *out, st_ino); 1730 CP(*in, *out, st_mode); 1731 CP(*in, *out, st_nlink); 1732 CP(*in, *out, st_uid); 1733 CP(*in, *out, st_gid); 1734 CP(*in, *out, st_rdev); 1735 TS_CP(*in, *out, st_atim); 1736 TS_CP(*in, *out, st_mtim); 1737 TS_CP(*in, *out, st_ctim); 1738 CP(*in, *out, st_size); 1739 CP(*in, *out, st_blocks); 1740 CP(*in, *out, st_blksize); 1741 CP(*in, *out, st_flags); 1742 CP(*in, *out, st_gen); 1743 TS_CP(*in, *out, st_birthtim); 1744} 1745 1746#ifdef COMPAT_43 1747static void 1748copy_ostat(struct stat *in, struct ostat32 *out) 1749{ 1750 1751 CP(*in, *out, st_dev); 1752 CP(*in, *out, st_ino); 1753 CP(*in, *out, st_mode); 1754 CP(*in, *out, st_nlink); 1755 CP(*in, *out, st_uid); 1756 CP(*in, *out, st_gid); 1757 CP(*in, *out, st_rdev); 1758 CP(*in, *out, st_size); 1759 TS_CP(*in, *out, st_atim); 1760 TS_CP(*in, *out, st_mtim); 1761 TS_CP(*in, *out, st_ctim); 1762 CP(*in, *out, st_blksize); 1763 CP(*in, *out, st_blocks); 1764 CP(*in, *out, st_flags); 1765 CP(*in, *out, st_gen); 1766} 1767#endif 1768 1769int 1770freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1771{ 1772 struct stat sb; 1773 struct stat32 sb32; 1774 int error; 1775 1776 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1777 &sb, NULL); 1778 if (error) 1779 return (error); 1780 copy_stat(&sb, &sb32); 1781 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1782 return (error); 1783} 1784 1785#ifdef COMPAT_43 1786int 1787ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1788{ 1789 struct stat sb; 1790 struct ostat32 sb32; 1791 int error; 1792 1793 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1794 &sb, NULL); 1795 if (error) 1796 return (error); 1797 copy_ostat(&sb, &sb32); 1798 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1799 return (error); 1800} 1801#endif 1802 1803int 1804freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1805{ 1806 struct stat ub; 1807 struct stat32 ub32; 1808 int error; 1809 1810 error = kern_fstat(td, uap->fd, &ub); 1811 if (error) 1812 return (error); 1813 copy_stat(&ub, &ub32); 1814 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1815 return (error); 1816} 1817 1818#ifdef COMPAT_43 1819int 1820ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1821{ 1822 struct stat ub; 1823 struct ostat32 ub32; 1824 int error; 1825 1826 error = kern_fstat(td, uap->fd, &ub); 1827 if (error) 1828 return (error); 1829 copy_ostat(&ub, &ub32); 1830 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1831 return (error); 1832} 1833#endif 1834 1835int 1836freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1837{ 1838 struct stat ub; 1839 struct stat32 ub32; 1840 int error; 1841 1842 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, 1843 &ub, NULL); 1844 if (error) 1845 return (error); 1846 copy_stat(&ub, &ub32); 1847 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1848 return (error); 1849} 1850 1851int 1852freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1853{ 1854 struct stat sb; 1855 struct stat32 sb32; 1856 int error; 1857 1858 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1859 UIO_USERSPACE, &sb, NULL); 1860 if (error) 1861 return (error); 1862 copy_stat(&sb, &sb32); 1863 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1864 return (error); 1865} 1866 1867#ifdef COMPAT_43 1868int 1869ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1870{ 1871 struct stat sb; 1872 struct ostat32 sb32; 1873 int error; 1874 1875 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1876 UIO_USERSPACE, &sb, NULL); 1877 if (error) 1878 return (error); 1879 copy_ostat(&sb, &sb32); 1880 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1881 return (error); 1882} 1883#endif 1884 1885int 1886freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1887{ 1888 int error, name[CTL_MAXNAME]; 1889 size_t j, oldlen; 1890 uint32_t tmp; 1891 1892 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1893 return (EINVAL); 1894 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1895 if (error) 1896 return (error); 1897 if (uap->oldlenp) { 1898 error = fueword32(uap->oldlenp, &tmp); 1899 oldlen = tmp; 1900 } else { 1901 oldlen = 0; 1902 } 1903 if (error != 0) 1904 return (EFAULT); 1905 error = userland_sysctl(td, name, uap->namelen, 1906 uap->old, &oldlen, 1, 1907 uap->new, uap->newlen, &j, SCTL_MASK32); 1908 if (error && error != ENOMEM) 1909 return (error); 1910 if (uap->oldlenp) 1911 suword32(uap->oldlenp, j); 1912 return (0); 1913} 1914 1915int 1916freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1917{ 1918 uint32_t version; 1919 int error; 1920 struct jail j; 1921 1922 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1923 if (error) 1924 return (error); 1925 1926 switch (version) { 1927 case 0: 1928 { 1929 /* FreeBSD single IPv4 jails. */ 1930 struct jail32_v0 j32_v0; 1931 1932 bzero(&j, sizeof(struct jail)); 1933 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1934 if (error) 1935 return (error); 1936 CP(j32_v0, j, version); 1937 PTRIN_CP(j32_v0, j, path); 1938 PTRIN_CP(j32_v0, j, hostname); 1939 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1940 break; 1941 } 1942 1943 case 1: 1944 /* 1945 * Version 1 was used by multi-IPv4 jail implementations 1946 * that never made it into the official kernel. 1947 */ 1948 return (EINVAL); 1949 1950 case 2: /* JAIL_API_VERSION */ 1951 { 1952 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1953 struct jail32 j32; 1954 1955 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1956 if (error) 1957 return (error); 1958 CP(j32, j, version); 1959 PTRIN_CP(j32, j, path); 1960 PTRIN_CP(j32, j, hostname); 1961 PTRIN_CP(j32, j, jailname); 1962 CP(j32, j, ip4s); 1963 CP(j32, j, ip6s); 1964 PTRIN_CP(j32, j, ip4); 1965 PTRIN_CP(j32, j, ip6); 1966 break; 1967 } 1968 1969 default: 1970 /* Sci-Fi jails are not supported, sorry. */ 1971 return (EINVAL); 1972 } 1973 return (kern_jail(td, &j)); 1974} 1975 1976int 1977freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1978{ 1979 struct uio *auio; 1980 int error; 1981 1982 /* Check that we have an even number of iovecs. */ 1983 if (uap->iovcnt & 1) 1984 return (EINVAL); 1985 1986 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1987 if (error) 1988 return (error); 1989 error = kern_jail_set(td, auio, uap->flags); 1990 free(auio, M_IOV); 1991 return (error); 1992} 1993 1994int 1995freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1996{ 1997 struct iovec32 iov32; 1998 struct uio *auio; 1999 int error, i; 2000 2001 /* Check that we have an even number of iovecs. */ 2002 if (uap->iovcnt & 1) 2003 return (EINVAL); 2004 2005 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2006 if (error) 2007 return (error); 2008 error = kern_jail_get(td, auio, uap->flags); 2009 if (error == 0) 2010 for (i = 0; i < uap->iovcnt; i++) { 2011 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 2012 CP(auio->uio_iov[i], iov32, iov_len); 2013 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 2014 if (error != 0) 2015 break; 2016 } 2017 free(auio, M_IOV); 2018 return (error); 2019} 2020 2021int 2022freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2023{ 2024 struct sigaction32 s32; 2025 struct sigaction sa, osa, *sap; 2026 int error; 2027 2028 if (uap->act) { 2029 error = copyin(uap->act, &s32, sizeof(s32)); 2030 if (error) 2031 return (error); 2032 sa.sa_handler = PTRIN(s32.sa_u); 2033 CP(s32, sa, sa_flags); 2034 CP(s32, sa, sa_mask); 2035 sap = &sa; 2036 } else 2037 sap = NULL; 2038 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2039 if (error == 0 && uap->oact != NULL) { 2040 s32.sa_u = PTROUT(osa.sa_handler); 2041 CP(osa, s32, sa_flags); 2042 CP(osa, s32, sa_mask); 2043 error = copyout(&s32, uap->oact, sizeof(s32)); 2044 } 2045 return (error); 2046} 2047 2048#ifdef COMPAT_FREEBSD4 2049int 2050freebsd4_freebsd32_sigaction(struct thread *td, 2051 struct freebsd4_freebsd32_sigaction_args *uap) 2052{ 2053 struct sigaction32 s32; 2054 struct sigaction sa, osa, *sap; 2055 int error; 2056 2057 if (uap->act) { 2058 error = copyin(uap->act, &s32, sizeof(s32)); 2059 if (error) 2060 return (error); 2061 sa.sa_handler = PTRIN(s32.sa_u); 2062 CP(s32, sa, sa_flags); 2063 CP(s32, sa, sa_mask); 2064 sap = &sa; 2065 } else 2066 sap = NULL; 2067 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2068 if (error == 0 && uap->oact != NULL) { 2069 s32.sa_u = PTROUT(osa.sa_handler); 2070 CP(osa, s32, sa_flags); 2071 CP(osa, s32, sa_mask); 2072 error = copyout(&s32, uap->oact, sizeof(s32)); 2073 } 2074 return (error); 2075} 2076#endif 2077 2078#ifdef COMPAT_43 2079struct osigaction32 { 2080 u_int32_t sa_u; 2081 osigset_t sa_mask; 2082 int sa_flags; 2083}; 2084 2085#define ONSIG 32 2086 2087int 2088ofreebsd32_sigaction(struct thread *td, 2089 struct ofreebsd32_sigaction_args *uap) 2090{ 2091 struct osigaction32 s32; 2092 struct sigaction sa, osa, *sap; 2093 int error; 2094 2095 if (uap->signum <= 0 || uap->signum >= ONSIG) 2096 return (EINVAL); 2097 2098 if (uap->nsa) { 2099 error = copyin(uap->nsa, &s32, sizeof(s32)); 2100 if (error) 2101 return (error); 2102 sa.sa_handler = PTRIN(s32.sa_u); 2103 CP(s32, sa, sa_flags); 2104 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2105 sap = &sa; 2106 } else 2107 sap = NULL; 2108 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2109 if (error == 0 && uap->osa != NULL) { 2110 s32.sa_u = PTROUT(osa.sa_handler); 2111 CP(osa, s32, sa_flags); 2112 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2113 error = copyout(&s32, uap->osa, sizeof(s32)); 2114 } 2115 return (error); 2116} 2117 2118int 2119ofreebsd32_sigprocmask(struct thread *td, 2120 struct ofreebsd32_sigprocmask_args *uap) 2121{ 2122 sigset_t set, oset; 2123 int error; 2124 2125 OSIG2SIG(uap->mask, set); 2126 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2127 SIG2OSIG(oset, td->td_retval[0]); 2128 return (error); 2129} 2130 2131int 2132ofreebsd32_sigpending(struct thread *td, 2133 struct ofreebsd32_sigpending_args *uap) 2134{ 2135 struct proc *p = td->td_proc; 2136 sigset_t siglist; 2137 2138 PROC_LOCK(p); 2139 siglist = p->p_siglist; 2140 SIGSETOR(siglist, td->td_siglist); 2141 PROC_UNLOCK(p); 2142 SIG2OSIG(siglist, td->td_retval[0]); 2143 return (0); 2144} 2145 2146struct sigvec32 { 2147 u_int32_t sv_handler; 2148 int sv_mask; 2149 int sv_flags; 2150}; 2151 2152int 2153ofreebsd32_sigvec(struct thread *td, 2154 struct ofreebsd32_sigvec_args *uap) 2155{ 2156 struct sigvec32 vec; 2157 struct sigaction sa, osa, *sap; 2158 int error; 2159 2160 if (uap->signum <= 0 || uap->signum >= ONSIG) 2161 return (EINVAL); 2162 2163 if (uap->nsv) { 2164 error = copyin(uap->nsv, &vec, sizeof(vec)); 2165 if (error) 2166 return (error); 2167 sa.sa_handler = PTRIN(vec.sv_handler); 2168 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2169 sa.sa_flags = vec.sv_flags; 2170 sa.sa_flags ^= SA_RESTART; 2171 sap = &sa; 2172 } else 2173 sap = NULL; 2174 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2175 if (error == 0 && uap->osv != NULL) { 2176 vec.sv_handler = PTROUT(osa.sa_handler); 2177 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2178 vec.sv_flags = osa.sa_flags; 2179 vec.sv_flags &= ~SA_NOCLDWAIT; 2180 vec.sv_flags ^= SA_RESTART; 2181 error = copyout(&vec, uap->osv, sizeof(vec)); 2182 } 2183 return (error); 2184} 2185 2186int 2187ofreebsd32_sigblock(struct thread *td, 2188 struct ofreebsd32_sigblock_args *uap) 2189{ 2190 sigset_t set, oset; 2191 2192 OSIG2SIG(uap->mask, set); 2193 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2194 SIG2OSIG(oset, td->td_retval[0]); 2195 return (0); 2196} 2197 2198int 2199ofreebsd32_sigsetmask(struct thread *td, 2200 struct ofreebsd32_sigsetmask_args *uap) 2201{ 2202 sigset_t set, oset; 2203 2204 OSIG2SIG(uap->mask, set); 2205 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2206 SIG2OSIG(oset, td->td_retval[0]); 2207 return (0); 2208} 2209 2210int 2211ofreebsd32_sigsuspend(struct thread *td, 2212 struct ofreebsd32_sigsuspend_args *uap) 2213{ 2214 sigset_t mask; 2215 2216 OSIG2SIG(uap->mask, mask); 2217 return (kern_sigsuspend(td, mask)); 2218} 2219 2220struct sigstack32 { 2221 u_int32_t ss_sp; 2222 int ss_onstack; 2223}; 2224 2225int 2226ofreebsd32_sigstack(struct thread *td, 2227 struct ofreebsd32_sigstack_args *uap) 2228{ 2229 struct sigstack32 s32; 2230 struct sigstack nss, oss; 2231 int error = 0, unss; 2232 2233 if (uap->nss != NULL) { 2234 error = copyin(uap->nss, &s32, sizeof(s32)); 2235 if (error) 2236 return (error); 2237 nss.ss_sp = PTRIN(s32.ss_sp); 2238 CP(s32, nss, ss_onstack); 2239 unss = 1; 2240 } else { 2241 unss = 0; 2242 } 2243 oss.ss_sp = td->td_sigstk.ss_sp; 2244 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2245 if (unss) { 2246 td->td_sigstk.ss_sp = nss.ss_sp; 2247 td->td_sigstk.ss_size = 0; 2248 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2249 td->td_pflags |= TDP_ALTSTACK; 2250 } 2251 if (uap->oss != NULL) { 2252 s32.ss_sp = PTROUT(oss.ss_sp); 2253 CP(oss, s32, ss_onstack); 2254 error = copyout(&s32, uap->oss, sizeof(s32)); 2255 } 2256 return (error); 2257} 2258#endif 2259 2260int 2261freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2262{ 2263 struct timespec32 rmt32, rqt32; 2264 struct timespec rmt, rqt; 2265 int error; 2266 2267 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2268 if (error) 2269 return (error); 2270 2271 CP(rqt32, rqt, tv_sec); 2272 CP(rqt32, rqt, tv_nsec); 2273 2274 if (uap->rmtp && 2275 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2276 return (EFAULT); 2277 error = kern_nanosleep(td, &rqt, &rmt); 2278 if (error && uap->rmtp) { 2279 int error2; 2280 2281 CP(rmt, rmt32, tv_sec); 2282 CP(rmt, rmt32, tv_nsec); 2283 2284 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2285 if (error2) 2286 error = error2; 2287 } 2288 return (error); 2289} 2290 2291int 2292freebsd32_clock_gettime(struct thread *td, 2293 struct freebsd32_clock_gettime_args *uap) 2294{ 2295 struct timespec ats; 2296 struct timespec32 ats32; 2297 int error; 2298 2299 error = kern_clock_gettime(td, uap->clock_id, &ats); 2300 if (error == 0) { 2301 CP(ats, ats32, tv_sec); 2302 CP(ats, ats32, tv_nsec); 2303 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2304 } 2305 return (error); 2306} 2307 2308int 2309freebsd32_clock_settime(struct thread *td, 2310 struct freebsd32_clock_settime_args *uap) 2311{ 2312 struct timespec ats; 2313 struct timespec32 ats32; 2314 int error; 2315 2316 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2317 if (error) 2318 return (error); 2319 CP(ats32, ats, tv_sec); 2320 CP(ats32, ats, tv_nsec); 2321 2322 return (kern_clock_settime(td, uap->clock_id, &ats)); 2323} 2324 2325int 2326freebsd32_clock_getres(struct thread *td, 2327 struct freebsd32_clock_getres_args *uap) 2328{ 2329 struct timespec ts; 2330 struct timespec32 ts32; 2331 int error; 2332 2333 if (uap->tp == NULL) 2334 return (0); 2335 error = kern_clock_getres(td, uap->clock_id, &ts); 2336 if (error == 0) { 2337 CP(ts, ts32, tv_sec); 2338 CP(ts, ts32, tv_nsec); 2339 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2340 } 2341 return (error); 2342} 2343 2344int freebsd32_ktimer_create(struct thread *td, 2345 struct freebsd32_ktimer_create_args *uap) 2346{ 2347 struct sigevent32 ev32; 2348 struct sigevent ev, *evp; 2349 int error, id; 2350 2351 if (uap->evp == NULL) { 2352 evp = NULL; 2353 } else { 2354 evp = &ev; 2355 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2356 if (error != 0) 2357 return (error); 2358 error = convert_sigevent32(&ev32, &ev); 2359 if (error != 0) 2360 return (error); 2361 } 2362 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2363 if (error == 0) { 2364 error = copyout(&id, uap->timerid, sizeof(int)); 2365 if (error != 0) 2366 kern_ktimer_delete(td, id); 2367 } 2368 return (error); 2369} 2370 2371int 2372freebsd32_ktimer_settime(struct thread *td, 2373 struct freebsd32_ktimer_settime_args *uap) 2374{ 2375 struct itimerspec32 val32, oval32; 2376 struct itimerspec val, oval, *ovalp; 2377 int error; 2378 2379 error = copyin(uap->value, &val32, sizeof(val32)); 2380 if (error != 0) 2381 return (error); 2382 ITS_CP(val32, val); 2383 ovalp = uap->ovalue != NULL ? &oval : NULL; 2384 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2385 if (error == 0 && uap->ovalue != NULL) { 2386 ITS_CP(oval, oval32); 2387 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2388 } 2389 return (error); 2390} 2391 2392int 2393freebsd32_ktimer_gettime(struct thread *td, 2394 struct freebsd32_ktimer_gettime_args *uap) 2395{ 2396 struct itimerspec32 val32; 2397 struct itimerspec val; 2398 int error; 2399 2400 error = kern_ktimer_gettime(td, uap->timerid, &val); 2401 if (error == 0) { 2402 ITS_CP(val, val32); 2403 error = copyout(&val32, uap->value, sizeof(val32)); 2404 } 2405 return (error); 2406} 2407 2408int 2409freebsd32_clock_getcpuclockid2(struct thread *td, 2410 struct freebsd32_clock_getcpuclockid2_args *uap) 2411{ 2412 clockid_t clk_id; 2413 int error; 2414 2415 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2416 uap->which, &clk_id); 2417 if (error == 0) 2418 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2419 return (error); 2420} 2421 2422int 2423freebsd32_thr_new(struct thread *td, 2424 struct freebsd32_thr_new_args *uap) 2425{ 2426 struct thr_param32 param32; 2427 struct thr_param param; 2428 int error; 2429 2430 if (uap->param_size < 0 || 2431 uap->param_size > sizeof(struct thr_param32)) 2432 return (EINVAL); 2433 bzero(¶m, sizeof(struct thr_param)); 2434 bzero(¶m32, sizeof(struct thr_param32)); 2435 error = copyin(uap->param, ¶m32, uap->param_size); 2436 if (error != 0) 2437 return (error); 2438 param.start_func = PTRIN(param32.start_func); 2439 param.arg = PTRIN(param32.arg); 2440 param.stack_base = PTRIN(param32.stack_base); 2441 param.stack_size = param32.stack_size; 2442 param.tls_base = PTRIN(param32.tls_base); 2443 param.tls_size = param32.tls_size; 2444 param.child_tid = PTRIN(param32.child_tid); 2445 param.parent_tid = PTRIN(param32.parent_tid); 2446 param.flags = param32.flags; 2447 param.rtp = PTRIN(param32.rtp); 2448 param.spare[0] = PTRIN(param32.spare[0]); 2449 param.spare[1] = PTRIN(param32.spare[1]); 2450 param.spare[2] = PTRIN(param32.spare[2]); 2451 2452 return (kern_thr_new(td, ¶m)); 2453} 2454 2455int 2456freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2457{ 2458 struct timespec32 ts32; 2459 struct timespec ts, *tsp; 2460 int error; 2461 2462 error = 0; 2463 tsp = NULL; 2464 if (uap->timeout != NULL) { 2465 error = copyin((const void *)uap->timeout, (void *)&ts32, 2466 sizeof(struct timespec32)); 2467 if (error != 0) 2468 return (error); 2469 ts.tv_sec = ts32.tv_sec; 2470 ts.tv_nsec = ts32.tv_nsec; 2471 tsp = &ts; 2472 } 2473 return (kern_thr_suspend(td, tsp)); 2474} 2475 2476void 2477siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2478{ 2479 bzero(dst, sizeof(*dst)); 2480 dst->si_signo = src->si_signo; 2481 dst->si_errno = src->si_errno; 2482 dst->si_code = src->si_code; 2483 dst->si_pid = src->si_pid; 2484 dst->si_uid = src->si_uid; 2485 dst->si_status = src->si_status; 2486 dst->si_addr = (uintptr_t)src->si_addr; 2487 dst->si_value.sival_int = src->si_value.sival_int; 2488 dst->si_timerid = src->si_timerid; 2489 dst->si_overrun = src->si_overrun; 2490} 2491 2492int 2493freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2494{ 2495 struct timespec32 ts32; 2496 struct timespec ts; 2497 struct timespec *timeout; 2498 sigset_t set; 2499 ksiginfo_t ksi; 2500 struct siginfo32 si32; 2501 int error; 2502 2503 if (uap->timeout) { 2504 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2505 if (error) 2506 return (error); 2507 ts.tv_sec = ts32.tv_sec; 2508 ts.tv_nsec = ts32.tv_nsec; 2509 timeout = &ts; 2510 } else 2511 timeout = NULL; 2512 2513 error = copyin(uap->set, &set, sizeof(set)); 2514 if (error) 2515 return (error); 2516 2517 error = kern_sigtimedwait(td, set, &ksi, timeout); 2518 if (error) 2519 return (error); 2520 2521 if (uap->info) { 2522 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2523 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2524 } 2525 2526 if (error == 0) 2527 td->td_retval[0] = ksi.ksi_signo; 2528 return (error); 2529} 2530 2531/* 2532 * MPSAFE 2533 */ 2534int 2535freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2536{ 2537 ksiginfo_t ksi; 2538 struct siginfo32 si32; 2539 sigset_t set; 2540 int error; 2541 2542 error = copyin(uap->set, &set, sizeof(set)); 2543 if (error) 2544 return (error); 2545 2546 error = kern_sigtimedwait(td, set, &ksi, NULL); 2547 if (error) 2548 return (error); 2549 2550 if (uap->info) { 2551 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2552 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2553 } 2554 if (error == 0) 2555 td->td_retval[0] = ksi.ksi_signo; 2556 return (error); 2557} 2558 2559int 2560freebsd32_cpuset_setid(struct thread *td, 2561 struct freebsd32_cpuset_setid_args *uap) 2562{ 2563 struct cpuset_setid_args ap; 2564 2565 ap.which = uap->which; 2566 ap.id = PAIR32TO64(id_t,uap->id); 2567 ap.setid = uap->setid; 2568 2569 return (sys_cpuset_setid(td, &ap)); 2570} 2571 2572int 2573freebsd32_cpuset_getid(struct thread *td, 2574 struct freebsd32_cpuset_getid_args *uap) 2575{ 2576 struct cpuset_getid_args ap; 2577 2578 ap.level = uap->level; 2579 ap.which = uap->which; 2580 ap.id = PAIR32TO64(id_t,uap->id); 2581 ap.setid = uap->setid; 2582 2583 return (sys_cpuset_getid(td, &ap)); 2584} 2585 2586int 2587freebsd32_cpuset_getaffinity(struct thread *td, 2588 struct freebsd32_cpuset_getaffinity_args *uap) 2589{ 2590 struct cpuset_getaffinity_args ap; 2591 2592 ap.level = uap->level; 2593 ap.which = uap->which; 2594 ap.id = PAIR32TO64(id_t,uap->id); 2595 ap.cpusetsize = uap->cpusetsize; 2596 ap.mask = uap->mask; 2597 2598 return (sys_cpuset_getaffinity(td, &ap)); 2599} 2600 2601int 2602freebsd32_cpuset_setaffinity(struct thread *td, 2603 struct freebsd32_cpuset_setaffinity_args *uap) 2604{ 2605 struct cpuset_setaffinity_args ap; 2606 2607 ap.level = uap->level; 2608 ap.which = uap->which; 2609 ap.id = PAIR32TO64(id_t,uap->id); 2610 ap.cpusetsize = uap->cpusetsize; 2611 ap.mask = uap->mask; 2612 2613 return (sys_cpuset_setaffinity(td, &ap)); 2614} 2615 2616int 2617freebsd32_nmount(struct thread *td, 2618 struct freebsd32_nmount_args /* { 2619 struct iovec *iovp; 2620 unsigned int iovcnt; 2621 int flags; 2622 } */ *uap) 2623{ 2624 struct uio *auio; 2625 uint64_t flags; 2626 int error; 2627 2628 /* 2629 * Mount flags are now 64-bits. On 32-bit archtectures only 2630 * 32-bits are passed in, but from here on everything handles 2631 * 64-bit flags correctly. 2632 */ 2633 flags = uap->flags; 2634 2635 AUDIT_ARG_FFLAGS(flags); 2636 2637 /* 2638 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2639 * userspace to set this flag, but we must filter it out if we want 2640 * MNT_UPDATE on the root file system to work. 2641 * MNT_ROOTFS should only be set by the kernel when mounting its 2642 * root file system. 2643 */ 2644 flags &= ~MNT_ROOTFS; 2645 2646 /* 2647 * check that we have an even number of iovec's 2648 * and that we have at least two options. 2649 */ 2650 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2651 return (EINVAL); 2652 2653 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2654 if (error) 2655 return (error); 2656 error = vfs_donmount(td, flags, auio); 2657 2658 free(auio, M_IOV); 2659 return error; 2660} 2661 2662#if 0 2663int 2664freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2665{ 2666 struct yyy32 *p32, s32; 2667 struct yyy *p = NULL, s; 2668 struct xxx_arg ap; 2669 int error; 2670 2671 if (uap->zzz) { 2672 error = copyin(uap->zzz, &s32, sizeof(s32)); 2673 if (error) 2674 return (error); 2675 /* translate in */ 2676 p = &s; 2677 } 2678 error = kern_xxx(td, p); 2679 if (error) 2680 return (error); 2681 if (uap->zzz) { 2682 /* translate out */ 2683 error = copyout(&s32, p32, sizeof(s32)); 2684 } 2685 return (error); 2686} 2687#endif 2688 2689int 2690syscall32_register(int *offset, struct sysent *new_sysent, 2691 struct sysent *old_sysent, int flags) 2692{ 2693 2694 if ((flags & ~SY_THR_STATIC) != 0) 2695 return (EINVAL); 2696 2697 if (*offset == NO_SYSCALL) { 2698 int i; 2699 2700 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2701 if (freebsd32_sysent[i].sy_call == 2702 (sy_call_t *)lkmnosys) 2703 break; 2704 if (i == SYS_MAXSYSCALL) 2705 return (ENFILE); 2706 *offset = i; 2707 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2708 return (EINVAL); 2709 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2710 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2711 return (EEXIST); 2712 2713 *old_sysent = freebsd32_sysent[*offset]; 2714 freebsd32_sysent[*offset] = *new_sysent; 2715 atomic_store_rel_32(&freebsd32_sysent[*offset].sy_thrcnt, flags); 2716 return (0); 2717} 2718 2719int 2720syscall32_deregister(int *offset, struct sysent *old_sysent) 2721{ 2722 2723 if (*offset == 0) 2724 return (0); 2725 2726 freebsd32_sysent[*offset] = *old_sysent; 2727 return (0); 2728} 2729 2730int 2731syscall32_module_handler(struct module *mod, int what, void *arg) 2732{ 2733 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2734 modspecific_t ms; 2735 int error; 2736 2737 switch (what) { 2738 case MOD_LOAD: 2739 error = syscall32_register(data->offset, data->new_sysent, 2740 &data->old_sysent, SY_THR_STATIC_KLD); 2741 if (error) { 2742 /* Leave a mark so we know to safely unload below. */ 2743 data->offset = NULL; 2744 return error; 2745 } 2746 ms.intval = *data->offset; 2747 MOD_XLOCK; 2748 module_setspecific(mod, &ms); 2749 MOD_XUNLOCK; 2750 if (data->chainevh) 2751 error = data->chainevh(mod, what, data->chainarg); 2752 return (error); 2753 case MOD_UNLOAD: 2754 /* 2755 * MOD_LOAD failed, so just return without calling the 2756 * chained handler since we didn't pass along the MOD_LOAD 2757 * event. 2758 */ 2759 if (data->offset == NULL) 2760 return (0); 2761 if (data->chainevh) { 2762 error = data->chainevh(mod, what, data->chainarg); 2763 if (error) 2764 return (error); 2765 } 2766 error = syscall32_deregister(data->offset, &data->old_sysent); 2767 return (error); 2768 default: 2769 error = EOPNOTSUPP; 2770 if (data->chainevh) 2771 error = data->chainevh(mod, what, data->chainarg); 2772 return (error); 2773 } 2774} 2775 2776int 2777syscall32_helper_register(struct syscall_helper_data *sd, int flags) 2778{ 2779 struct syscall_helper_data *sd1; 2780 int error; 2781 2782 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2783 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2784 &sd1->old_sysent, flags); 2785 if (error != 0) { 2786 syscall32_helper_unregister(sd); 2787 return (error); 2788 } 2789 sd1->registered = 1; 2790 } 2791 return (0); 2792} 2793 2794int 2795syscall32_helper_unregister(struct syscall_helper_data *sd) 2796{ 2797 struct syscall_helper_data *sd1; 2798 2799 for (sd1 = sd; sd1->registered != 0; sd1++) { 2800 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2801 sd1->registered = 0; 2802 } 2803 return (0); 2804} 2805 2806register_t * 2807freebsd32_copyout_strings(struct image_params *imgp) 2808{ 2809 int argc, envc, i; 2810 u_int32_t *vectp; 2811 char *stringp; 2812 uintptr_t destp; 2813 u_int32_t *stack_base; 2814 struct freebsd32_ps_strings *arginfo; 2815 char canary[sizeof(long) * 8]; 2816 int32_t pagesizes32[MAXPAGESIZES]; 2817 size_t execpath_len; 2818 int szsigcode; 2819 2820 /* 2821 * Calculate string base and vector table pointers. 2822 * Also deal with signal trampoline code for this exec type. 2823 */ 2824 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2825 execpath_len = strlen(imgp->execpath) + 1; 2826 else 2827 execpath_len = 0; 2828 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2829 sv_psstrings; 2830 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2831 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2832 else 2833 szsigcode = 0; 2834 destp = (uintptr_t)arginfo; 2835 2836 /* 2837 * install sigcode 2838 */ 2839 if (szsigcode != 0) { 2840 destp -= szsigcode; 2841 destp = rounddown2(destp, sizeof(uint32_t)); 2842 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2843 szsigcode); 2844 } 2845 2846 /* 2847 * Copy the image path for the rtld. 2848 */ 2849 if (execpath_len != 0) { 2850 destp -= execpath_len; 2851 imgp->execpathp = destp; 2852 copyout(imgp->execpath, (void *)destp, execpath_len); 2853 } 2854 2855 /* 2856 * Prepare the canary for SSP. 2857 */ 2858 arc4rand(canary, sizeof(canary), 0); 2859 destp -= sizeof(canary); 2860 imgp->canary = destp; 2861 copyout(canary, (void *)destp, sizeof(canary)); 2862 imgp->canarylen = sizeof(canary); 2863 2864 /* 2865 * Prepare the pagesizes array. 2866 */ 2867 for (i = 0; i < MAXPAGESIZES; i++) 2868 pagesizes32[i] = (uint32_t)pagesizes[i]; 2869 destp -= sizeof(pagesizes32); 2870 destp = rounddown2(destp, sizeof(uint32_t)); 2871 imgp->pagesizes = destp; 2872 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2873 imgp->pagesizeslen = sizeof(pagesizes32); 2874 2875 destp -= ARG_MAX - imgp->args->stringspace; 2876 destp = rounddown2(destp, sizeof(uint32_t)); 2877 2878 /* 2879 * If we have a valid auxargs ptr, prepare some room 2880 * on the stack. 2881 */ 2882 if (imgp->auxargs) { 2883 /* 2884 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2885 * lower compatibility. 2886 */ 2887 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2888 : (AT_COUNT * 2); 2889 /* 2890 * The '+ 2' is for the null pointers at the end of each of 2891 * the arg and env vector sets,and imgp->auxarg_size is room 2892 * for argument of Runtime loader. 2893 */ 2894 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2895 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2896 sizeof(u_int32_t)); 2897 } else { 2898 /* 2899 * The '+ 2' is for the null pointers at the end of each of 2900 * the arg and env vector sets 2901 */ 2902 vectp = (u_int32_t *)(destp - (imgp->args->argc + 2903 imgp->args->envc + 2) * sizeof(u_int32_t)); 2904 } 2905 2906 /* 2907 * vectp also becomes our initial stack base 2908 */ 2909 stack_base = vectp; 2910 2911 stringp = imgp->args->begin_argv; 2912 argc = imgp->args->argc; 2913 envc = imgp->args->envc; 2914 /* 2915 * Copy out strings - arguments and environment. 2916 */ 2917 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2918 2919 /* 2920 * Fill in "ps_strings" struct for ps, w, etc. 2921 */ 2922 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2923 suword32(&arginfo->ps_nargvstr, argc); 2924 2925 /* 2926 * Fill in argument portion of vector table. 2927 */ 2928 for (; argc > 0; --argc) { 2929 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2930 while (*stringp++ != 0) 2931 destp++; 2932 destp++; 2933 } 2934 2935 /* a null vector table pointer separates the argp's from the envp's */ 2936 suword32(vectp++, 0); 2937 2938 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2939 suword32(&arginfo->ps_nenvstr, envc); 2940 2941 /* 2942 * Fill in environment portion of vector table. 2943 */ 2944 for (; envc > 0; --envc) { 2945 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2946 while (*stringp++ != 0) 2947 destp++; 2948 destp++; 2949 } 2950 2951 /* end of vector table is a null pointer */ 2952 suword32(vectp, 0); 2953 2954 return ((register_t *)stack_base); 2955} 2956 2957int 2958freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2959{ 2960 struct kld_file_stat stat; 2961 struct kld32_file_stat stat32; 2962 int error, version; 2963 2964 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2965 != 0) 2966 return (error); 2967 if (version != sizeof(struct kld32_file_stat_1) && 2968 version != sizeof(struct kld32_file_stat)) 2969 return (EINVAL); 2970 2971 error = kern_kldstat(td, uap->fileid, &stat); 2972 if (error != 0) 2973 return (error); 2974 2975 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name)); 2976 CP(stat, stat32, refs); 2977 CP(stat, stat32, id); 2978 PTROUT_CP(stat, stat32, address); 2979 CP(stat, stat32, size); 2980 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname)); 2981 return (copyout(&stat32, uap->stat, version)); 2982} 2983 2984int 2985freebsd32_posix_fallocate(struct thread *td, 2986 struct freebsd32_posix_fallocate_args *uap) 2987{ 2988 int error; 2989 2990 error = kern_posix_fallocate(td, uap->fd, 2991 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 2992 return (kern_posix_error(td, error)); 2993} 2994 2995int 2996freebsd32_posix_fadvise(struct thread *td, 2997 struct freebsd32_posix_fadvise_args *uap) 2998{ 2999 int error; 3000 3001 error = kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset), 3002 PAIR32TO64(off_t, uap->len), uap->advice); 3003 return (kern_posix_error(td, error)); 3004} 3005 3006int 3007convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 3008{ 3009 3010 CP(*sig32, *sig, sigev_notify); 3011 switch (sig->sigev_notify) { 3012 case SIGEV_NONE: 3013 break; 3014 case SIGEV_THREAD_ID: 3015 CP(*sig32, *sig, sigev_notify_thread_id); 3016 /* FALLTHROUGH */ 3017 case SIGEV_SIGNAL: 3018 CP(*sig32, *sig, sigev_signo); 3019 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3020 break; 3021 case SIGEV_KEVENT: 3022 CP(*sig32, *sig, sigev_notify_kqueue); 3023 CP(*sig32, *sig, sigev_notify_kevent_flags); 3024 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3025 break; 3026 default: 3027 return (EINVAL); 3028 } 3029 return (0); 3030} 3031 3032int 3033freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3034{ 3035 void *data; 3036 union { 3037 struct procctl_reaper_status rs; 3038 struct procctl_reaper_pids rp; 3039 struct procctl_reaper_kill rk; 3040 } x; 3041 union { 3042 struct procctl_reaper_pids32 rp; 3043 } x32; 3044 int error, error1, flags; 3045 3046 switch (uap->com) { 3047 case PROC_SPROTECT: 3048 case PROC_TRACE_CTL: 3049 case PROC_TRAPCAP_CTL: 3050 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3051 if (error != 0) 3052 return (error); 3053 data = &flags; 3054 break; 3055 case PROC_REAP_ACQUIRE: 3056 case PROC_REAP_RELEASE: 3057 if (uap->data != NULL) 3058 return (EINVAL); 3059 data = NULL; 3060 break; 3061 case PROC_REAP_STATUS: 3062 data = &x.rs; 3063 break; 3064 case PROC_REAP_GETPIDS: 3065 error = copyin(uap->data, &x32.rp, sizeof(x32.rp)); 3066 if (error != 0) 3067 return (error); 3068 CP(x32.rp, x.rp, rp_count); 3069 PTRIN_CP(x32.rp, x.rp, rp_pids); 3070 data = &x.rp; 3071 break; 3072 case PROC_REAP_KILL: 3073 error = copyin(uap->data, &x.rk, sizeof(x.rk)); 3074 if (error != 0) 3075 return (error); 3076 data = &x.rk; 3077 break; 3078 case PROC_TRACE_STATUS: 3079 case PROC_TRAPCAP_STATUS: 3080 data = &flags; 3081 break; 3082 default: 3083 return (EINVAL); 3084 } 3085 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3086 uap->com, data); 3087 switch (uap->com) { 3088 case PROC_REAP_STATUS: 3089 if (error == 0) 3090 error = copyout(&x.rs, uap->data, sizeof(x.rs)); 3091 break; 3092 case PROC_REAP_KILL: 3093 error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); 3094 if (error == 0) 3095 error = error1; 3096 break; 3097 case PROC_TRACE_STATUS: 3098 case PROC_TRAPCAP_STATUS: 3099 if (error == 0) 3100 error = copyout(&flags, uap->data, sizeof(flags)); 3101 break; 3102 } 3103 return (error); 3104} 3105 3106int 3107freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 3108{ 3109 long tmp; 3110 3111 switch (uap->cmd) { 3112 /* 3113 * Do unsigned conversion for arg when operation 3114 * interprets it as flags or pointer. 3115 */ 3116 case F_SETLK_REMOTE: 3117 case F_SETLKW: 3118 case F_SETLK: 3119 case F_GETLK: 3120 case F_SETFD: 3121 case F_SETFL: 3122 case F_OGETLK: 3123 case F_OSETLK: 3124 case F_OSETLKW: 3125 tmp = (unsigned int)(uap->arg); 3126 break; 3127 default: 3128 tmp = uap->arg; 3129 break; 3130 } 3131 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 3132} 3133 3134int 3135freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap) 3136{ 3137 struct timespec32 ts32; 3138 struct timespec ts, *tsp; 3139 sigset_t set, *ssp; 3140 int error; 3141 3142 if (uap->ts != NULL) { 3143 error = copyin(uap->ts, &ts32, sizeof(ts32)); 3144 if (error != 0) 3145 return (error); 3146 CP(ts32, ts, tv_sec); 3147 CP(ts32, ts, tv_nsec); 3148 tsp = &ts; 3149 } else 3150 tsp = NULL; 3151 if (uap->set != NULL) { 3152 error = copyin(uap->set, &set, sizeof(set)); 3153 if (error != 0) 3154 return (error); 3155 ssp = &set; 3156 } else 3157 ssp = NULL; 3158 3159 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp)); 3160} 3161