freebsd32_misc.c revision 311956
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 311956 2017-01-12 01:05:34Z 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->flags); 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_TEMP); 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 struct mprotect_args ap; 453 454 ap.addr = PTRIN(uap->addr); 455 ap.len = uap->len; 456 ap.prot = uap->prot; 457#if defined(__amd64__) 458 if (i386_read_exec && (ap.prot & PROT_READ) != 0) 459 ap.prot |= PROT_EXEC; 460#endif 461 return (sys_mprotect(td, &ap)); 462} 463 464int 465freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 466{ 467 struct mmap_args ap; 468 vm_offset_t addr = (vm_offset_t) uap->addr; 469 vm_size_t len = uap->len; 470 int prot = uap->prot; 471 int flags = uap->flags; 472 int fd = uap->fd; 473 off_t pos = PAIR32TO64(off_t,uap->pos); 474 475#if defined(__amd64__) 476 if (i386_read_exec && (prot & PROT_READ)) 477 prot |= PROT_EXEC; 478#endif 479 480 ap.addr = (void *) addr; 481 ap.len = len; 482 ap.prot = prot; 483 ap.flags = flags; 484 ap.fd = fd; 485 ap.pos = pos; 486 487 return (sys_mmap(td, &ap)); 488} 489 490#ifdef COMPAT_FREEBSD6 491int 492freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 493{ 494 struct freebsd32_mmap_args ap; 495 496 ap.addr = uap->addr; 497 ap.len = uap->len; 498 ap.prot = uap->prot; 499 ap.flags = uap->flags; 500 ap.fd = uap->fd; 501 ap.pos1 = uap->pos1; 502 ap.pos2 = uap->pos2; 503 504 return (freebsd32_mmap(td, &ap)); 505} 506#endif 507 508int 509freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 510{ 511 struct itimerval itv, oitv, *itvp; 512 struct itimerval32 i32; 513 int error; 514 515 if (uap->itv != NULL) { 516 error = copyin(uap->itv, &i32, sizeof(i32)); 517 if (error) 518 return (error); 519 TV_CP(i32, itv, it_interval); 520 TV_CP(i32, itv, it_value); 521 itvp = &itv; 522 } else 523 itvp = NULL; 524 error = kern_setitimer(td, uap->which, itvp, &oitv); 525 if (error || uap->oitv == NULL) 526 return (error); 527 TV_CP(oitv, i32, it_interval); 528 TV_CP(oitv, i32, it_value); 529 return (copyout(&i32, uap->oitv, sizeof(i32))); 530} 531 532int 533freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 534{ 535 struct itimerval itv; 536 struct itimerval32 i32; 537 int error; 538 539 error = kern_getitimer(td, uap->which, &itv); 540 if (error || uap->itv == NULL) 541 return (error); 542 TV_CP(itv, i32, it_interval); 543 TV_CP(itv, i32, it_value); 544 return (copyout(&i32, uap->itv, sizeof(i32))); 545} 546 547int 548freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 549{ 550 struct timeval32 tv32; 551 struct timeval tv, *tvp; 552 int error; 553 554 if (uap->tv != NULL) { 555 error = copyin(uap->tv, &tv32, sizeof(tv32)); 556 if (error) 557 return (error); 558 CP(tv32, tv, tv_sec); 559 CP(tv32, tv, tv_usec); 560 tvp = &tv; 561 } else 562 tvp = NULL; 563 /* 564 * XXX Do pointers need PTRIN()? 565 */ 566 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 567 sizeof(int32_t) * 8)); 568} 569 570int 571freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 572{ 573 struct timespec32 ts32; 574 struct timespec ts; 575 struct timeval tv, *tvp; 576 sigset_t set, *uset; 577 int error; 578 579 if (uap->ts != NULL) { 580 error = copyin(uap->ts, &ts32, sizeof(ts32)); 581 if (error != 0) 582 return (error); 583 CP(ts32, ts, tv_sec); 584 CP(ts32, ts, tv_nsec); 585 TIMESPEC_TO_TIMEVAL(&tv, &ts); 586 tvp = &tv; 587 } else 588 tvp = NULL; 589 if (uap->sm != NULL) { 590 error = copyin(uap->sm, &set, sizeof(set)); 591 if (error != 0) 592 return (error); 593 uset = &set; 594 } else 595 uset = NULL; 596 /* 597 * XXX Do pointers need PTRIN()? 598 */ 599 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 600 uset, sizeof(int32_t) * 8); 601 return (error); 602} 603 604/* 605 * Copy 'count' items into the destination list pointed to by uap->eventlist. 606 */ 607static int 608freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 609{ 610 struct freebsd32_kevent_args *uap; 611 struct kevent32 ks32[KQ_NEVENTS]; 612 int i, error = 0; 613 614 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 615 uap = (struct freebsd32_kevent_args *)arg; 616 617 for (i = 0; i < count; i++) { 618 CP(kevp[i], ks32[i], ident); 619 CP(kevp[i], ks32[i], filter); 620 CP(kevp[i], ks32[i], flags); 621 CP(kevp[i], ks32[i], fflags); 622 CP(kevp[i], ks32[i], data); 623 PTROUT_CP(kevp[i], ks32[i], udata); 624 } 625 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 626 if (error == 0) 627 uap->eventlist += count; 628 return (error); 629} 630 631/* 632 * Copy 'count' items from the list pointed to by uap->changelist. 633 */ 634static int 635freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 636{ 637 struct freebsd32_kevent_args *uap; 638 struct kevent32 ks32[KQ_NEVENTS]; 639 int i, error = 0; 640 641 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 642 uap = (struct freebsd32_kevent_args *)arg; 643 644 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 645 if (error) 646 goto done; 647 uap->changelist += count; 648 649 for (i = 0; i < count; i++) { 650 CP(ks32[i], kevp[i], ident); 651 CP(ks32[i], kevp[i], filter); 652 CP(ks32[i], kevp[i], flags); 653 CP(ks32[i], kevp[i], fflags); 654 CP(ks32[i], kevp[i], data); 655 PTRIN_CP(ks32[i], kevp[i], udata); 656 } 657done: 658 return (error); 659} 660 661int 662freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 663{ 664 struct timespec32 ts32; 665 struct timespec ts, *tsp; 666 struct kevent_copyops k_ops = { uap, 667 freebsd32_kevent_copyout, 668 freebsd32_kevent_copyin}; 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 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 682 &k_ops, tsp); 683 return (error); 684} 685 686int 687freebsd32_gettimeofday(struct thread *td, 688 struct freebsd32_gettimeofday_args *uap) 689{ 690 struct timeval atv; 691 struct timeval32 atv32; 692 struct timezone rtz; 693 int error = 0; 694 695 if (uap->tp) { 696 microtime(&atv); 697 CP(atv, atv32, tv_sec); 698 CP(atv, atv32, tv_usec); 699 error = copyout(&atv32, uap->tp, sizeof (atv32)); 700 } 701 if (error == 0 && uap->tzp != NULL) { 702 rtz.tz_minuteswest = tz_minuteswest; 703 rtz.tz_dsttime = tz_dsttime; 704 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 705 } 706 return (error); 707} 708 709int 710freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 711{ 712 struct rusage32 s32; 713 struct rusage s; 714 int error; 715 716 error = kern_getrusage(td, uap->who, &s); 717 if (error) 718 return (error); 719 if (uap->rusage != NULL) { 720 freebsd32_rusage_out(&s, &s32); 721 error = copyout(&s32, uap->rusage, sizeof(s32)); 722 } 723 return (error); 724} 725 726static int 727freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 728{ 729 struct iovec32 iov32; 730 struct iovec *iov; 731 struct uio *uio; 732 u_int iovlen; 733 int error, i; 734 735 *uiop = NULL; 736 if (iovcnt > UIO_MAXIOV) 737 return (EINVAL); 738 iovlen = iovcnt * sizeof(struct iovec); 739 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 740 iov = (struct iovec *)(uio + 1); 741 for (i = 0; i < iovcnt; i++) { 742 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 743 if (error) { 744 free(uio, M_IOV); 745 return (error); 746 } 747 iov[i].iov_base = PTRIN(iov32.iov_base); 748 iov[i].iov_len = iov32.iov_len; 749 } 750 uio->uio_iov = iov; 751 uio->uio_iovcnt = iovcnt; 752 uio->uio_segflg = UIO_USERSPACE; 753 uio->uio_offset = -1; 754 uio->uio_resid = 0; 755 for (i = 0; i < iovcnt; i++) { 756 if (iov->iov_len > INT_MAX - uio->uio_resid) { 757 free(uio, M_IOV); 758 return (EINVAL); 759 } 760 uio->uio_resid += iov->iov_len; 761 iov++; 762 } 763 *uiop = uio; 764 return (0); 765} 766 767int 768freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 769{ 770 struct uio *auio; 771 int error; 772 773 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 774 if (error) 775 return (error); 776 error = kern_readv(td, uap->fd, auio); 777 free(auio, M_IOV); 778 return (error); 779} 780 781int 782freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 783{ 784 struct uio *auio; 785 int error; 786 787 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 788 if (error) 789 return (error); 790 error = kern_writev(td, uap->fd, auio); 791 free(auio, M_IOV); 792 return (error); 793} 794 795int 796freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 797{ 798 struct uio *auio; 799 int error; 800 801 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 802 if (error) 803 return (error); 804 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 805 free(auio, M_IOV); 806 return (error); 807} 808 809int 810freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 811{ 812 struct uio *auio; 813 int error; 814 815 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 816 if (error) 817 return (error); 818 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 819 free(auio, M_IOV); 820 return (error); 821} 822 823int 824freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 825 int error) 826{ 827 struct iovec32 iov32; 828 struct iovec *iov; 829 u_int iovlen; 830 int i; 831 832 *iovp = NULL; 833 if (iovcnt > UIO_MAXIOV) 834 return (error); 835 iovlen = iovcnt * sizeof(struct iovec); 836 iov = malloc(iovlen, M_IOV, M_WAITOK); 837 for (i = 0; i < iovcnt; i++) { 838 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 839 if (error) { 840 free(iov, M_IOV); 841 return (error); 842 } 843 iov[i].iov_base = PTRIN(iov32.iov_base); 844 iov[i].iov_len = iov32.iov_len; 845 } 846 *iovp = iov; 847 return (0); 848} 849 850static int 851freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 852{ 853 struct msghdr32 m32; 854 int error; 855 856 error = copyin(msg32, &m32, sizeof(m32)); 857 if (error) 858 return (error); 859 msg->msg_name = PTRIN(m32.msg_name); 860 msg->msg_namelen = m32.msg_namelen; 861 msg->msg_iov = PTRIN(m32.msg_iov); 862 msg->msg_iovlen = m32.msg_iovlen; 863 msg->msg_control = PTRIN(m32.msg_control); 864 msg->msg_controllen = m32.msg_controllen; 865 msg->msg_flags = m32.msg_flags; 866 return (0); 867} 868 869static int 870freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 871{ 872 struct msghdr32 m32; 873 int error; 874 875 m32.msg_name = PTROUT(msg->msg_name); 876 m32.msg_namelen = msg->msg_namelen; 877 m32.msg_iov = PTROUT(msg->msg_iov); 878 m32.msg_iovlen = msg->msg_iovlen; 879 m32.msg_control = PTROUT(msg->msg_control); 880 m32.msg_controllen = msg->msg_controllen; 881 m32.msg_flags = msg->msg_flags; 882 error = copyout(&m32, msg32, sizeof(m32)); 883 return (error); 884} 885 886#ifndef __mips__ 887#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 888#else 889#define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 890#endif 891#define FREEBSD32_ALIGN(p) \ 892 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 893#define FREEBSD32_CMSG_SPACE(l) \ 894 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 895 896#define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 897 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 898static int 899freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 900{ 901 struct cmsghdr *cm; 902 void *data; 903 socklen_t clen, datalen; 904 int error; 905 caddr_t ctlbuf; 906 int len, maxlen, copylen; 907 struct mbuf *m; 908 error = 0; 909 910 len = msg->msg_controllen; 911 maxlen = msg->msg_controllen; 912 msg->msg_controllen = 0; 913 914 m = control; 915 ctlbuf = msg->msg_control; 916 917 while (m && len > 0) { 918 cm = mtod(m, struct cmsghdr *); 919 clen = m->m_len; 920 921 while (cm != NULL) { 922 923 if (sizeof(struct cmsghdr) > clen || 924 cm->cmsg_len > clen) { 925 error = EINVAL; 926 break; 927 } 928 929 data = CMSG_DATA(cm); 930 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 931 932 /* Adjust message length */ 933 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 934 datalen; 935 936 937 /* Copy cmsghdr */ 938 copylen = sizeof(struct cmsghdr); 939 if (len < copylen) { 940 msg->msg_flags |= MSG_CTRUNC; 941 copylen = len; 942 } 943 944 error = copyout(cm,ctlbuf,copylen); 945 if (error) 946 goto exit; 947 948 ctlbuf += FREEBSD32_ALIGN(copylen); 949 len -= FREEBSD32_ALIGN(copylen); 950 951 if (len <= 0) 952 break; 953 954 /* Copy data */ 955 copylen = datalen; 956 if (len < copylen) { 957 msg->msg_flags |= MSG_CTRUNC; 958 copylen = len; 959 } 960 961 error = copyout(data,ctlbuf,copylen); 962 if (error) 963 goto exit; 964 965 ctlbuf += FREEBSD32_ALIGN(copylen); 966 len -= FREEBSD32_ALIGN(copylen); 967 968 if (CMSG_SPACE(datalen) < clen) { 969 clen -= CMSG_SPACE(datalen); 970 cm = (struct cmsghdr *) 971 ((caddr_t)cm + CMSG_SPACE(datalen)); 972 } else { 973 clen = 0; 974 cm = NULL; 975 } 976 } 977 m = m->m_next; 978 } 979 980 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 981 982exit: 983 return (error); 984 985} 986 987int 988freebsd32_recvmsg(td, uap) 989 struct thread *td; 990 struct freebsd32_recvmsg_args /* { 991 int s; 992 struct msghdr32 *msg; 993 int flags; 994 } */ *uap; 995{ 996 struct msghdr msg; 997 struct msghdr32 m32; 998 struct iovec *uiov, *iov; 999 struct mbuf *control = NULL; 1000 struct mbuf **controlp; 1001 1002 int error; 1003 error = copyin(uap->msg, &m32, sizeof(m32)); 1004 if (error) 1005 return (error); 1006 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1007 if (error) 1008 return (error); 1009 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1010 EMSGSIZE); 1011 if (error) 1012 return (error); 1013 msg.msg_flags = uap->flags; 1014 uiov = msg.msg_iov; 1015 msg.msg_iov = iov; 1016 1017 controlp = (msg.msg_control != NULL) ? &control : NULL; 1018 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1019 if (error == 0) { 1020 msg.msg_iov = uiov; 1021 1022 if (control != NULL) 1023 error = freebsd32_copy_msg_out(&msg, control); 1024 else 1025 msg.msg_controllen = 0; 1026 1027 if (error == 0) 1028 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1029 } 1030 free(iov, M_IOV); 1031 1032 if (control != NULL) 1033 m_freem(control); 1034 1035 return (error); 1036} 1037 1038/* 1039 * Copy-in the array of control messages constructed using alignment 1040 * and padding suitable for a 32-bit environment and construct an 1041 * mbuf using alignment and padding suitable for a 64-bit kernel. 1042 * The alignment and padding are defined indirectly by CMSG_DATA(), 1043 * CMSG_SPACE() and CMSG_LEN(). 1044 */ 1045static int 1046freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1047{ 1048 struct mbuf *m; 1049 void *md; 1050 u_int idx, len, msglen; 1051 int error; 1052 1053 buflen = FREEBSD32_ALIGN(buflen); 1054 1055 if (buflen > MCLBYTES) 1056 return (EINVAL); 1057 1058 /* 1059 * Iterate over the buffer and get the length of each message 1060 * in there. This has 32-bit alignment and padding. Use it to 1061 * determine the length of these messages when using 64-bit 1062 * alignment and padding. 1063 */ 1064 idx = 0; 1065 len = 0; 1066 while (idx < buflen) { 1067 error = copyin(buf + idx, &msglen, sizeof(msglen)); 1068 if (error) 1069 return (error); 1070 if (msglen < sizeof(struct cmsghdr)) 1071 return (EINVAL); 1072 msglen = FREEBSD32_ALIGN(msglen); 1073 if (idx + msglen > buflen) 1074 return (EINVAL); 1075 idx += msglen; 1076 msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) - 1077 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1078 len += CMSG_ALIGN(msglen); 1079 } 1080 1081 if (len > MCLBYTES) 1082 return (EINVAL); 1083 1084 m = m_get(M_WAITOK, MT_CONTROL); 1085 if (len > MLEN) 1086 MCLGET(m, M_WAITOK); 1087 m->m_len = len; 1088 1089 md = mtod(m, void *); 1090 while (buflen > 0) { 1091 error = copyin(buf, md, sizeof(struct cmsghdr)); 1092 if (error) 1093 break; 1094 msglen = *(u_int *)md; 1095 msglen = FREEBSD32_ALIGN(msglen); 1096 1097 /* Modify the message length to account for alignment. */ 1098 *(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) - 1099 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1100 1101 md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr)); 1102 buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1103 buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1104 1105 msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1106 if (msglen > 0) { 1107 error = copyin(buf, md, msglen); 1108 if (error) 1109 break; 1110 md = (char *)md + CMSG_ALIGN(msglen); 1111 buf += msglen; 1112 buflen -= msglen; 1113 } 1114 } 1115 1116 if (error) 1117 m_free(m); 1118 else 1119 *mp = m; 1120 return (error); 1121} 1122 1123int 1124freebsd32_sendmsg(struct thread *td, 1125 struct freebsd32_sendmsg_args *uap) 1126{ 1127 struct msghdr msg; 1128 struct msghdr32 m32; 1129 struct iovec *iov; 1130 struct mbuf *control = NULL; 1131 struct sockaddr *to = NULL; 1132 int error; 1133 1134 error = copyin(uap->msg, &m32, sizeof(m32)); 1135 if (error) 1136 return (error); 1137 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1138 if (error) 1139 return (error); 1140 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1141 EMSGSIZE); 1142 if (error) 1143 return (error); 1144 msg.msg_iov = iov; 1145 if (msg.msg_name != NULL) { 1146 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1147 if (error) { 1148 to = NULL; 1149 goto out; 1150 } 1151 msg.msg_name = to; 1152 } 1153 1154 if (msg.msg_control) { 1155 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1156 error = EINVAL; 1157 goto out; 1158 } 1159 1160 error = freebsd32_copyin_control(&control, msg.msg_control, 1161 msg.msg_controllen); 1162 if (error) 1163 goto out; 1164 1165 msg.msg_control = NULL; 1166 msg.msg_controllen = 0; 1167 } 1168 1169 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1170 UIO_USERSPACE); 1171 1172out: 1173 free(iov, M_IOV); 1174 if (to) 1175 free(to, M_SONAME); 1176 return (error); 1177} 1178 1179int 1180freebsd32_recvfrom(struct thread *td, 1181 struct freebsd32_recvfrom_args *uap) 1182{ 1183 struct msghdr msg; 1184 struct iovec aiov; 1185 int error; 1186 1187 if (uap->fromlenaddr) { 1188 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1189 sizeof(msg.msg_namelen)); 1190 if (error) 1191 return (error); 1192 } else { 1193 msg.msg_namelen = 0; 1194 } 1195 1196 msg.msg_name = PTRIN(uap->from); 1197 msg.msg_iov = &aiov; 1198 msg.msg_iovlen = 1; 1199 aiov.iov_base = PTRIN(uap->buf); 1200 aiov.iov_len = uap->len; 1201 msg.msg_control = NULL; 1202 msg.msg_flags = uap->flags; 1203 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1204 if (error == 0 && uap->fromlenaddr) 1205 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1206 sizeof (msg.msg_namelen)); 1207 return (error); 1208} 1209 1210int 1211freebsd32_settimeofday(struct thread *td, 1212 struct freebsd32_settimeofday_args *uap) 1213{ 1214 struct timeval32 tv32; 1215 struct timeval tv, *tvp; 1216 struct timezone tz, *tzp; 1217 int error; 1218 1219 if (uap->tv) { 1220 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1221 if (error) 1222 return (error); 1223 CP(tv32, tv, tv_sec); 1224 CP(tv32, tv, tv_usec); 1225 tvp = &tv; 1226 } else 1227 tvp = NULL; 1228 if (uap->tzp) { 1229 error = copyin(uap->tzp, &tz, sizeof(tz)); 1230 if (error) 1231 return (error); 1232 tzp = &tz; 1233 } else 1234 tzp = NULL; 1235 return (kern_settimeofday(td, tvp, tzp)); 1236} 1237 1238int 1239freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1240{ 1241 struct timeval32 s32[2]; 1242 struct timeval s[2], *sp; 1243 int error; 1244 1245 if (uap->tptr != NULL) { 1246 error = copyin(uap->tptr, s32, sizeof(s32)); 1247 if (error) 1248 return (error); 1249 CP(s32[0], s[0], tv_sec); 1250 CP(s32[0], s[0], tv_usec); 1251 CP(s32[1], s[1], tv_sec); 1252 CP(s32[1], s[1], tv_usec); 1253 sp = s; 1254 } else 1255 sp = NULL; 1256 return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE, 1257 sp, UIO_SYSSPACE)); 1258} 1259 1260int 1261freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1262{ 1263 struct timeval32 s32[2]; 1264 struct timeval s[2], *sp; 1265 int error; 1266 1267 if (uap->tptr != NULL) { 1268 error = copyin(uap->tptr, s32, sizeof(s32)); 1269 if (error) 1270 return (error); 1271 CP(s32[0], s[0], tv_sec); 1272 CP(s32[0], s[0], tv_usec); 1273 CP(s32[1], s[1], tv_sec); 1274 CP(s32[1], s[1], tv_usec); 1275 sp = s; 1276 } else 1277 sp = NULL; 1278 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1279} 1280 1281int 1282freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1283{ 1284 struct timeval32 s32[2]; 1285 struct timeval s[2], *sp; 1286 int error; 1287 1288 if (uap->tptr != NULL) { 1289 error = copyin(uap->tptr, s32, sizeof(s32)); 1290 if (error) 1291 return (error); 1292 CP(s32[0], s[0], tv_sec); 1293 CP(s32[0], s[0], tv_usec); 1294 CP(s32[1], s[1], tv_sec); 1295 CP(s32[1], s[1], tv_usec); 1296 sp = s; 1297 } else 1298 sp = NULL; 1299 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1300} 1301 1302int 1303freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1304{ 1305 struct timeval32 s32[2]; 1306 struct timeval s[2], *sp; 1307 int error; 1308 1309 if (uap->times != NULL) { 1310 error = copyin(uap->times, s32, sizeof(s32)); 1311 if (error) 1312 return (error); 1313 CP(s32[0], s[0], tv_sec); 1314 CP(s32[0], s[0], tv_usec); 1315 CP(s32[1], s[1], tv_sec); 1316 CP(s32[1], s[1], tv_usec); 1317 sp = s; 1318 } else 1319 sp = NULL; 1320 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1321 sp, UIO_SYSSPACE)); 1322} 1323 1324int 1325freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap) 1326{ 1327 struct timespec32 ts32[2]; 1328 struct timespec ts[2], *tsp; 1329 int error; 1330 1331 if (uap->times != NULL) { 1332 error = copyin(uap->times, ts32, sizeof(ts32)); 1333 if (error) 1334 return (error); 1335 CP(ts32[0], ts[0], tv_sec); 1336 CP(ts32[0], ts[0], tv_nsec); 1337 CP(ts32[1], ts[1], tv_sec); 1338 CP(ts32[1], ts[1], tv_nsec); 1339 tsp = ts; 1340 } else 1341 tsp = NULL; 1342 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE)); 1343} 1344 1345int 1346freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap) 1347{ 1348 struct timespec32 ts32[2]; 1349 struct timespec ts[2], *tsp; 1350 int error; 1351 1352 if (uap->times != NULL) { 1353 error = copyin(uap->times, ts32, sizeof(ts32)); 1354 if (error) 1355 return (error); 1356 CP(ts32[0], ts[0], tv_sec); 1357 CP(ts32[0], ts[0], tv_nsec); 1358 CP(ts32[1], ts[1], tv_sec); 1359 CP(ts32[1], ts[1], tv_nsec); 1360 tsp = ts; 1361 } else 1362 tsp = NULL; 1363 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE, 1364 tsp, UIO_SYSSPACE, uap->flag)); 1365} 1366 1367int 1368freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1369{ 1370 struct timeval32 tv32; 1371 struct timeval delta, olddelta, *deltap; 1372 int error; 1373 1374 if (uap->delta) { 1375 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1376 if (error) 1377 return (error); 1378 CP(tv32, delta, tv_sec); 1379 CP(tv32, delta, tv_usec); 1380 deltap = δ 1381 } else 1382 deltap = NULL; 1383 error = kern_adjtime(td, deltap, &olddelta); 1384 if (uap->olddelta && error == 0) { 1385 CP(olddelta, tv32, tv_sec); 1386 CP(olddelta, tv32, tv_usec); 1387 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1388 } 1389 return (error); 1390} 1391 1392#ifdef COMPAT_FREEBSD4 1393int 1394freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1395{ 1396 struct statfs32 s32; 1397 struct statfs s; 1398 int error; 1399 1400 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1401 if (error) 1402 return (error); 1403 copy_statfs(&s, &s32); 1404 return (copyout(&s32, uap->buf, sizeof(s32))); 1405} 1406#endif 1407 1408#ifdef COMPAT_FREEBSD4 1409int 1410freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1411{ 1412 struct statfs32 s32; 1413 struct statfs s; 1414 int error; 1415 1416 error = kern_fstatfs(td, uap->fd, &s); 1417 if (error) 1418 return (error); 1419 copy_statfs(&s, &s32); 1420 return (copyout(&s32, uap->buf, sizeof(s32))); 1421} 1422#endif 1423 1424#ifdef COMPAT_FREEBSD4 1425int 1426freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1427{ 1428 struct statfs32 s32; 1429 struct statfs s; 1430 fhandle_t fh; 1431 int error; 1432 1433 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1434 return (error); 1435 error = kern_fhstatfs(td, fh, &s); 1436 if (error) 1437 return (error); 1438 copy_statfs(&s, &s32); 1439 return (copyout(&s32, uap->buf, sizeof(s32))); 1440} 1441#endif 1442 1443int 1444freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1445{ 1446 struct pread_args ap; 1447 1448 ap.fd = uap->fd; 1449 ap.buf = uap->buf; 1450 ap.nbyte = uap->nbyte; 1451 ap.offset = PAIR32TO64(off_t,uap->offset); 1452 return (sys_pread(td, &ap)); 1453} 1454 1455int 1456freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1457{ 1458 struct pwrite_args ap; 1459 1460 ap.fd = uap->fd; 1461 ap.buf = uap->buf; 1462 ap.nbyte = uap->nbyte; 1463 ap.offset = PAIR32TO64(off_t,uap->offset); 1464 return (sys_pwrite(td, &ap)); 1465} 1466 1467#ifdef COMPAT_43 1468int 1469ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1470{ 1471 struct lseek_args nuap; 1472 1473 nuap.fd = uap->fd; 1474 nuap.offset = uap->offset; 1475 nuap.whence = uap->whence; 1476 return (sys_lseek(td, &nuap)); 1477} 1478#endif 1479 1480int 1481freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1482{ 1483 int error; 1484 struct lseek_args ap; 1485 off_t pos; 1486 1487 ap.fd = uap->fd; 1488 ap.offset = PAIR32TO64(off_t,uap->offset); 1489 ap.whence = uap->whence; 1490 error = sys_lseek(td, &ap); 1491 /* Expand the quad return into two parts for eax and edx */ 1492 pos = td->td_uretoff.tdu_off; 1493 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1494 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1495 return error; 1496} 1497 1498int 1499freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1500{ 1501 struct truncate_args ap; 1502 1503 ap.path = uap->path; 1504 ap.length = PAIR32TO64(off_t,uap->length); 1505 return (sys_truncate(td, &ap)); 1506} 1507 1508int 1509freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1510{ 1511 struct ftruncate_args ap; 1512 1513 ap.fd = uap->fd; 1514 ap.length = PAIR32TO64(off_t,uap->length); 1515 return (sys_ftruncate(td, &ap)); 1516} 1517 1518#ifdef COMPAT_43 1519int 1520ofreebsd32_getdirentries(struct thread *td, 1521 struct ofreebsd32_getdirentries_args *uap) 1522{ 1523 struct ogetdirentries_args ap; 1524 int error; 1525 long loff; 1526 int32_t loff_cut; 1527 1528 ap.fd = uap->fd; 1529 ap.buf = uap->buf; 1530 ap.count = uap->count; 1531 ap.basep = NULL; 1532 error = kern_ogetdirentries(td, &ap, &loff); 1533 if (error == 0) { 1534 loff_cut = loff; 1535 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1536 } 1537 return (error); 1538} 1539#endif 1540 1541int 1542freebsd32_getdirentries(struct thread *td, 1543 struct freebsd32_getdirentries_args *uap) 1544{ 1545 long base; 1546 int32_t base32; 1547 int error; 1548 1549 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1550 NULL, UIO_USERSPACE); 1551 if (error) 1552 return (error); 1553 if (uap->basep != NULL) { 1554 base32 = base; 1555 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1556 } 1557 return (error); 1558} 1559 1560#ifdef COMPAT_FREEBSD6 1561/* versions with the 'int pad' argument */ 1562int 1563freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1564{ 1565 struct pread_args ap; 1566 1567 ap.fd = uap->fd; 1568 ap.buf = uap->buf; 1569 ap.nbyte = uap->nbyte; 1570 ap.offset = PAIR32TO64(off_t,uap->offset); 1571 return (sys_pread(td, &ap)); 1572} 1573 1574int 1575freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1576{ 1577 struct pwrite_args ap; 1578 1579 ap.fd = uap->fd; 1580 ap.buf = uap->buf; 1581 ap.nbyte = uap->nbyte; 1582 ap.offset = PAIR32TO64(off_t,uap->offset); 1583 return (sys_pwrite(td, &ap)); 1584} 1585 1586int 1587freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1588{ 1589 int error; 1590 struct lseek_args ap; 1591 off_t pos; 1592 1593 ap.fd = uap->fd; 1594 ap.offset = PAIR32TO64(off_t,uap->offset); 1595 ap.whence = uap->whence; 1596 error = sys_lseek(td, &ap); 1597 /* Expand the quad return into two parts for eax and edx */ 1598 pos = *(off_t *)(td->td_retval); 1599 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1600 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1601 return error; 1602} 1603 1604int 1605freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1606{ 1607 struct truncate_args ap; 1608 1609 ap.path = uap->path; 1610 ap.length = PAIR32TO64(off_t,uap->length); 1611 return (sys_truncate(td, &ap)); 1612} 1613 1614int 1615freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1616{ 1617 struct ftruncate_args ap; 1618 1619 ap.fd = uap->fd; 1620 ap.length = PAIR32TO64(off_t,uap->length); 1621 return (sys_ftruncate(td, &ap)); 1622} 1623#endif /* COMPAT_FREEBSD6 */ 1624 1625struct sf_hdtr32 { 1626 uint32_t headers; 1627 int hdr_cnt; 1628 uint32_t trailers; 1629 int trl_cnt; 1630}; 1631 1632static int 1633freebsd32_do_sendfile(struct thread *td, 1634 struct freebsd32_sendfile_args *uap, int compat) 1635{ 1636 struct sf_hdtr32 hdtr32; 1637 struct sf_hdtr hdtr; 1638 struct uio *hdr_uio, *trl_uio; 1639 struct file *fp; 1640 cap_rights_t rights; 1641 struct iovec32 *iov32; 1642 off_t offset, sbytes; 1643 int error; 1644 1645 offset = PAIR32TO64(off_t, uap->offset); 1646 if (offset < 0) 1647 return (EINVAL); 1648 1649 hdr_uio = trl_uio = NULL; 1650 1651 if (uap->hdtr != NULL) { 1652 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1653 if (error) 1654 goto out; 1655 PTRIN_CP(hdtr32, hdtr, headers); 1656 CP(hdtr32, hdtr, hdr_cnt); 1657 PTRIN_CP(hdtr32, hdtr, trailers); 1658 CP(hdtr32, hdtr, trl_cnt); 1659 1660 if (hdtr.headers != NULL) { 1661 iov32 = PTRIN(hdtr32.headers); 1662 error = freebsd32_copyinuio(iov32, 1663 hdtr32.hdr_cnt, &hdr_uio); 1664 if (error) 1665 goto out; 1666#ifdef COMPAT_FREEBSD4 1667 /* 1668 * In FreeBSD < 5.0 the nbytes to send also included 1669 * the header. If compat is specified subtract the 1670 * header size from nbytes. 1671 */ 1672 if (compat) { 1673 if (uap->nbytes > hdr_uio->uio_resid) 1674 uap->nbytes -= hdr_uio->uio_resid; 1675 else 1676 uap->nbytes = 0; 1677 } 1678#endif 1679 } 1680 if (hdtr.trailers != NULL) { 1681 iov32 = PTRIN(hdtr32.trailers); 1682 error = freebsd32_copyinuio(iov32, 1683 hdtr32.trl_cnt, &trl_uio); 1684 if (error) 1685 goto out; 1686 } 1687 } 1688 1689 AUDIT_ARG_FD(uap->fd); 1690 1691 if ((error = fget_read(td, uap->fd, 1692 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) 1693 goto out; 1694 1695 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1696 uap->nbytes, &sbytes, uap->flags, td); 1697 fdrop(fp, td); 1698 1699 if (uap->sbytes != NULL) 1700 copyout(&sbytes, uap->sbytes, sizeof(off_t)); 1701 1702out: 1703 if (hdr_uio) 1704 free(hdr_uio, M_IOV); 1705 if (trl_uio) 1706 free(trl_uio, M_IOV); 1707 return (error); 1708} 1709 1710#ifdef COMPAT_FREEBSD4 1711int 1712freebsd4_freebsd32_sendfile(struct thread *td, 1713 struct freebsd4_freebsd32_sendfile_args *uap) 1714{ 1715 return (freebsd32_do_sendfile(td, 1716 (struct freebsd32_sendfile_args *)uap, 1)); 1717} 1718#endif 1719 1720int 1721freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1722{ 1723 1724 return (freebsd32_do_sendfile(td, uap, 0)); 1725} 1726 1727static void 1728copy_stat(struct stat *in, struct stat32 *out) 1729{ 1730 1731 CP(*in, *out, st_dev); 1732 CP(*in, *out, st_ino); 1733 CP(*in, *out, st_mode); 1734 CP(*in, *out, st_nlink); 1735 CP(*in, *out, st_uid); 1736 CP(*in, *out, st_gid); 1737 CP(*in, *out, st_rdev); 1738 TS_CP(*in, *out, st_atim); 1739 TS_CP(*in, *out, st_mtim); 1740 TS_CP(*in, *out, st_ctim); 1741 CP(*in, *out, st_size); 1742 CP(*in, *out, st_blocks); 1743 CP(*in, *out, st_blksize); 1744 CP(*in, *out, st_flags); 1745 CP(*in, *out, st_gen); 1746 TS_CP(*in, *out, st_birthtim); 1747} 1748 1749#ifdef COMPAT_43 1750static void 1751copy_ostat(struct stat *in, struct ostat32 *out) 1752{ 1753 1754 CP(*in, *out, st_dev); 1755 CP(*in, *out, st_ino); 1756 CP(*in, *out, st_mode); 1757 CP(*in, *out, st_nlink); 1758 CP(*in, *out, st_uid); 1759 CP(*in, *out, st_gid); 1760 CP(*in, *out, st_rdev); 1761 CP(*in, *out, st_size); 1762 TS_CP(*in, *out, st_atim); 1763 TS_CP(*in, *out, st_mtim); 1764 TS_CP(*in, *out, st_ctim); 1765 CP(*in, *out, st_blksize); 1766 CP(*in, *out, st_blocks); 1767 CP(*in, *out, st_flags); 1768 CP(*in, *out, st_gen); 1769} 1770#endif 1771 1772int 1773freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1774{ 1775 struct stat sb; 1776 struct stat32 sb32; 1777 int error; 1778 1779 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1780 &sb, NULL); 1781 if (error) 1782 return (error); 1783 copy_stat(&sb, &sb32); 1784 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1785 return (error); 1786} 1787 1788#ifdef COMPAT_43 1789int 1790ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1791{ 1792 struct stat sb; 1793 struct ostat32 sb32; 1794 int error; 1795 1796 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1797 &sb, NULL); 1798 if (error) 1799 return (error); 1800 copy_ostat(&sb, &sb32); 1801 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1802 return (error); 1803} 1804#endif 1805 1806int 1807freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1808{ 1809 struct stat ub; 1810 struct stat32 ub32; 1811 int error; 1812 1813 error = kern_fstat(td, uap->fd, &ub); 1814 if (error) 1815 return (error); 1816 copy_stat(&ub, &ub32); 1817 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1818 return (error); 1819} 1820 1821#ifdef COMPAT_43 1822int 1823ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1824{ 1825 struct stat ub; 1826 struct ostat32 ub32; 1827 int error; 1828 1829 error = kern_fstat(td, uap->fd, &ub); 1830 if (error) 1831 return (error); 1832 copy_ostat(&ub, &ub32); 1833 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1834 return (error); 1835} 1836#endif 1837 1838int 1839freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1840{ 1841 struct stat ub; 1842 struct stat32 ub32; 1843 int error; 1844 1845 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, 1846 &ub, NULL); 1847 if (error) 1848 return (error); 1849 copy_stat(&ub, &ub32); 1850 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1851 return (error); 1852} 1853 1854int 1855freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1856{ 1857 struct stat sb; 1858 struct stat32 sb32; 1859 int error; 1860 1861 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1862 UIO_USERSPACE, &sb, NULL); 1863 if (error) 1864 return (error); 1865 copy_stat(&sb, &sb32); 1866 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1867 return (error); 1868} 1869 1870#ifdef COMPAT_43 1871int 1872ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1873{ 1874 struct stat sb; 1875 struct ostat32 sb32; 1876 int error; 1877 1878 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1879 UIO_USERSPACE, &sb, NULL); 1880 if (error) 1881 return (error); 1882 copy_ostat(&sb, &sb32); 1883 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1884 return (error); 1885} 1886#endif 1887 1888int 1889freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1890{ 1891 int error, name[CTL_MAXNAME]; 1892 size_t j, oldlen; 1893 uint32_t tmp; 1894 1895 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1896 return (EINVAL); 1897 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1898 if (error) 1899 return (error); 1900 if (uap->oldlenp) { 1901 error = fueword32(uap->oldlenp, &tmp); 1902 oldlen = tmp; 1903 } else { 1904 oldlen = 0; 1905 } 1906 if (error != 0) 1907 return (EFAULT); 1908 error = userland_sysctl(td, name, uap->namelen, 1909 uap->old, &oldlen, 1, 1910 uap->new, uap->newlen, &j, SCTL_MASK32); 1911 if (error && error != ENOMEM) 1912 return (error); 1913 if (uap->oldlenp) 1914 suword32(uap->oldlenp, j); 1915 return (0); 1916} 1917 1918int 1919freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1920{ 1921 uint32_t version; 1922 int error; 1923 struct jail j; 1924 1925 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1926 if (error) 1927 return (error); 1928 1929 switch (version) { 1930 case 0: 1931 { 1932 /* FreeBSD single IPv4 jails. */ 1933 struct jail32_v0 j32_v0; 1934 1935 bzero(&j, sizeof(struct jail)); 1936 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1937 if (error) 1938 return (error); 1939 CP(j32_v0, j, version); 1940 PTRIN_CP(j32_v0, j, path); 1941 PTRIN_CP(j32_v0, j, hostname); 1942 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1943 break; 1944 } 1945 1946 case 1: 1947 /* 1948 * Version 1 was used by multi-IPv4 jail implementations 1949 * that never made it into the official kernel. 1950 */ 1951 return (EINVAL); 1952 1953 case 2: /* JAIL_API_VERSION */ 1954 { 1955 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1956 struct jail32 j32; 1957 1958 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1959 if (error) 1960 return (error); 1961 CP(j32, j, version); 1962 PTRIN_CP(j32, j, path); 1963 PTRIN_CP(j32, j, hostname); 1964 PTRIN_CP(j32, j, jailname); 1965 CP(j32, j, ip4s); 1966 CP(j32, j, ip6s); 1967 PTRIN_CP(j32, j, ip4); 1968 PTRIN_CP(j32, j, ip6); 1969 break; 1970 } 1971 1972 default: 1973 /* Sci-Fi jails are not supported, sorry. */ 1974 return (EINVAL); 1975 } 1976 return (kern_jail(td, &j)); 1977} 1978 1979int 1980freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1981{ 1982 struct uio *auio; 1983 int error; 1984 1985 /* Check that we have an even number of iovecs. */ 1986 if (uap->iovcnt & 1) 1987 return (EINVAL); 1988 1989 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1990 if (error) 1991 return (error); 1992 error = kern_jail_set(td, auio, uap->flags); 1993 free(auio, M_IOV); 1994 return (error); 1995} 1996 1997int 1998freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1999{ 2000 struct iovec32 iov32; 2001 struct uio *auio; 2002 int error, i; 2003 2004 /* Check that we have an even number of iovecs. */ 2005 if (uap->iovcnt & 1) 2006 return (EINVAL); 2007 2008 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2009 if (error) 2010 return (error); 2011 error = kern_jail_get(td, auio, uap->flags); 2012 if (error == 0) 2013 for (i = 0; i < uap->iovcnt; i++) { 2014 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 2015 CP(auio->uio_iov[i], iov32, iov_len); 2016 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 2017 if (error != 0) 2018 break; 2019 } 2020 free(auio, M_IOV); 2021 return (error); 2022} 2023 2024int 2025freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2026{ 2027 struct sigaction32 s32; 2028 struct sigaction sa, osa, *sap; 2029 int error; 2030 2031 if (uap->act) { 2032 error = copyin(uap->act, &s32, sizeof(s32)); 2033 if (error) 2034 return (error); 2035 sa.sa_handler = PTRIN(s32.sa_u); 2036 CP(s32, sa, sa_flags); 2037 CP(s32, sa, sa_mask); 2038 sap = &sa; 2039 } else 2040 sap = NULL; 2041 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2042 if (error == 0 && uap->oact != NULL) { 2043 s32.sa_u = PTROUT(osa.sa_handler); 2044 CP(osa, s32, sa_flags); 2045 CP(osa, s32, sa_mask); 2046 error = copyout(&s32, uap->oact, sizeof(s32)); 2047 } 2048 return (error); 2049} 2050 2051#ifdef COMPAT_FREEBSD4 2052int 2053freebsd4_freebsd32_sigaction(struct thread *td, 2054 struct freebsd4_freebsd32_sigaction_args *uap) 2055{ 2056 struct sigaction32 s32; 2057 struct sigaction sa, osa, *sap; 2058 int error; 2059 2060 if (uap->act) { 2061 error = copyin(uap->act, &s32, sizeof(s32)); 2062 if (error) 2063 return (error); 2064 sa.sa_handler = PTRIN(s32.sa_u); 2065 CP(s32, sa, sa_flags); 2066 CP(s32, sa, sa_mask); 2067 sap = &sa; 2068 } else 2069 sap = NULL; 2070 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2071 if (error == 0 && uap->oact != NULL) { 2072 s32.sa_u = PTROUT(osa.sa_handler); 2073 CP(osa, s32, sa_flags); 2074 CP(osa, s32, sa_mask); 2075 error = copyout(&s32, uap->oact, sizeof(s32)); 2076 } 2077 return (error); 2078} 2079#endif 2080 2081#ifdef COMPAT_43 2082struct osigaction32 { 2083 u_int32_t sa_u; 2084 osigset_t sa_mask; 2085 int sa_flags; 2086}; 2087 2088#define ONSIG 32 2089 2090int 2091ofreebsd32_sigaction(struct thread *td, 2092 struct ofreebsd32_sigaction_args *uap) 2093{ 2094 struct osigaction32 s32; 2095 struct sigaction sa, osa, *sap; 2096 int error; 2097 2098 if (uap->signum <= 0 || uap->signum >= ONSIG) 2099 return (EINVAL); 2100 2101 if (uap->nsa) { 2102 error = copyin(uap->nsa, &s32, sizeof(s32)); 2103 if (error) 2104 return (error); 2105 sa.sa_handler = PTRIN(s32.sa_u); 2106 CP(s32, sa, sa_flags); 2107 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2108 sap = &sa; 2109 } else 2110 sap = NULL; 2111 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2112 if (error == 0 && uap->osa != NULL) { 2113 s32.sa_u = PTROUT(osa.sa_handler); 2114 CP(osa, s32, sa_flags); 2115 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2116 error = copyout(&s32, uap->osa, sizeof(s32)); 2117 } 2118 return (error); 2119} 2120 2121int 2122ofreebsd32_sigprocmask(struct thread *td, 2123 struct ofreebsd32_sigprocmask_args *uap) 2124{ 2125 sigset_t set, oset; 2126 int error; 2127 2128 OSIG2SIG(uap->mask, set); 2129 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2130 SIG2OSIG(oset, td->td_retval[0]); 2131 return (error); 2132} 2133 2134int 2135ofreebsd32_sigpending(struct thread *td, 2136 struct ofreebsd32_sigpending_args *uap) 2137{ 2138 struct proc *p = td->td_proc; 2139 sigset_t siglist; 2140 2141 PROC_LOCK(p); 2142 siglist = p->p_siglist; 2143 SIGSETOR(siglist, td->td_siglist); 2144 PROC_UNLOCK(p); 2145 SIG2OSIG(siglist, td->td_retval[0]); 2146 return (0); 2147} 2148 2149struct sigvec32 { 2150 u_int32_t sv_handler; 2151 int sv_mask; 2152 int sv_flags; 2153}; 2154 2155int 2156ofreebsd32_sigvec(struct thread *td, 2157 struct ofreebsd32_sigvec_args *uap) 2158{ 2159 struct sigvec32 vec; 2160 struct sigaction sa, osa, *sap; 2161 int error; 2162 2163 if (uap->signum <= 0 || uap->signum >= ONSIG) 2164 return (EINVAL); 2165 2166 if (uap->nsv) { 2167 error = copyin(uap->nsv, &vec, sizeof(vec)); 2168 if (error) 2169 return (error); 2170 sa.sa_handler = PTRIN(vec.sv_handler); 2171 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2172 sa.sa_flags = vec.sv_flags; 2173 sa.sa_flags ^= SA_RESTART; 2174 sap = &sa; 2175 } else 2176 sap = NULL; 2177 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2178 if (error == 0 && uap->osv != NULL) { 2179 vec.sv_handler = PTROUT(osa.sa_handler); 2180 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2181 vec.sv_flags = osa.sa_flags; 2182 vec.sv_flags &= ~SA_NOCLDWAIT; 2183 vec.sv_flags ^= SA_RESTART; 2184 error = copyout(&vec, uap->osv, sizeof(vec)); 2185 } 2186 return (error); 2187} 2188 2189int 2190ofreebsd32_sigblock(struct thread *td, 2191 struct ofreebsd32_sigblock_args *uap) 2192{ 2193 sigset_t set, oset; 2194 2195 OSIG2SIG(uap->mask, set); 2196 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2197 SIG2OSIG(oset, td->td_retval[0]); 2198 return (0); 2199} 2200 2201int 2202ofreebsd32_sigsetmask(struct thread *td, 2203 struct ofreebsd32_sigsetmask_args *uap) 2204{ 2205 sigset_t set, oset; 2206 2207 OSIG2SIG(uap->mask, set); 2208 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2209 SIG2OSIG(oset, td->td_retval[0]); 2210 return (0); 2211} 2212 2213int 2214ofreebsd32_sigsuspend(struct thread *td, 2215 struct ofreebsd32_sigsuspend_args *uap) 2216{ 2217 sigset_t mask; 2218 2219 OSIG2SIG(uap->mask, mask); 2220 return (kern_sigsuspend(td, mask)); 2221} 2222 2223struct sigstack32 { 2224 u_int32_t ss_sp; 2225 int ss_onstack; 2226}; 2227 2228int 2229ofreebsd32_sigstack(struct thread *td, 2230 struct ofreebsd32_sigstack_args *uap) 2231{ 2232 struct sigstack32 s32; 2233 struct sigstack nss, oss; 2234 int error = 0, unss; 2235 2236 if (uap->nss != NULL) { 2237 error = copyin(uap->nss, &s32, sizeof(s32)); 2238 if (error) 2239 return (error); 2240 nss.ss_sp = PTRIN(s32.ss_sp); 2241 CP(s32, nss, ss_onstack); 2242 unss = 1; 2243 } else { 2244 unss = 0; 2245 } 2246 oss.ss_sp = td->td_sigstk.ss_sp; 2247 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2248 if (unss) { 2249 td->td_sigstk.ss_sp = nss.ss_sp; 2250 td->td_sigstk.ss_size = 0; 2251 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2252 td->td_pflags |= TDP_ALTSTACK; 2253 } 2254 if (uap->oss != NULL) { 2255 s32.ss_sp = PTROUT(oss.ss_sp); 2256 CP(oss, s32, ss_onstack); 2257 error = copyout(&s32, uap->oss, sizeof(s32)); 2258 } 2259 return (error); 2260} 2261#endif 2262 2263int 2264freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2265{ 2266 struct timespec32 rmt32, rqt32; 2267 struct timespec rmt, rqt; 2268 int error; 2269 2270 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2271 if (error) 2272 return (error); 2273 2274 CP(rqt32, rqt, tv_sec); 2275 CP(rqt32, rqt, tv_nsec); 2276 2277 if (uap->rmtp && 2278 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2279 return (EFAULT); 2280 error = kern_nanosleep(td, &rqt, &rmt); 2281 if (error && uap->rmtp) { 2282 int error2; 2283 2284 CP(rmt, rmt32, tv_sec); 2285 CP(rmt, rmt32, tv_nsec); 2286 2287 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2288 if (error2) 2289 error = error2; 2290 } 2291 return (error); 2292} 2293 2294int 2295freebsd32_clock_gettime(struct thread *td, 2296 struct freebsd32_clock_gettime_args *uap) 2297{ 2298 struct timespec ats; 2299 struct timespec32 ats32; 2300 int error; 2301 2302 error = kern_clock_gettime(td, uap->clock_id, &ats); 2303 if (error == 0) { 2304 CP(ats, ats32, tv_sec); 2305 CP(ats, ats32, tv_nsec); 2306 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2307 } 2308 return (error); 2309} 2310 2311int 2312freebsd32_clock_settime(struct thread *td, 2313 struct freebsd32_clock_settime_args *uap) 2314{ 2315 struct timespec ats; 2316 struct timespec32 ats32; 2317 int error; 2318 2319 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2320 if (error) 2321 return (error); 2322 CP(ats32, ats, tv_sec); 2323 CP(ats32, ats, tv_nsec); 2324 2325 return (kern_clock_settime(td, uap->clock_id, &ats)); 2326} 2327 2328int 2329freebsd32_clock_getres(struct thread *td, 2330 struct freebsd32_clock_getres_args *uap) 2331{ 2332 struct timespec ts; 2333 struct timespec32 ts32; 2334 int error; 2335 2336 if (uap->tp == NULL) 2337 return (0); 2338 error = kern_clock_getres(td, uap->clock_id, &ts); 2339 if (error == 0) { 2340 CP(ts, ts32, tv_sec); 2341 CP(ts, ts32, tv_nsec); 2342 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2343 } 2344 return (error); 2345} 2346 2347int freebsd32_ktimer_create(struct thread *td, 2348 struct freebsd32_ktimer_create_args *uap) 2349{ 2350 struct sigevent32 ev32; 2351 struct sigevent ev, *evp; 2352 int error, id; 2353 2354 if (uap->evp == NULL) { 2355 evp = NULL; 2356 } else { 2357 evp = &ev; 2358 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2359 if (error != 0) 2360 return (error); 2361 error = convert_sigevent32(&ev32, &ev); 2362 if (error != 0) 2363 return (error); 2364 } 2365 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2366 if (error == 0) { 2367 error = copyout(&id, uap->timerid, sizeof(int)); 2368 if (error != 0) 2369 kern_ktimer_delete(td, id); 2370 } 2371 return (error); 2372} 2373 2374int 2375freebsd32_ktimer_settime(struct thread *td, 2376 struct freebsd32_ktimer_settime_args *uap) 2377{ 2378 struct itimerspec32 val32, oval32; 2379 struct itimerspec val, oval, *ovalp; 2380 int error; 2381 2382 error = copyin(uap->value, &val32, sizeof(val32)); 2383 if (error != 0) 2384 return (error); 2385 ITS_CP(val32, val); 2386 ovalp = uap->ovalue != NULL ? &oval : NULL; 2387 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2388 if (error == 0 && uap->ovalue != NULL) { 2389 ITS_CP(oval, oval32); 2390 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2391 } 2392 return (error); 2393} 2394 2395int 2396freebsd32_ktimer_gettime(struct thread *td, 2397 struct freebsd32_ktimer_gettime_args *uap) 2398{ 2399 struct itimerspec32 val32; 2400 struct itimerspec val; 2401 int error; 2402 2403 error = kern_ktimer_gettime(td, uap->timerid, &val); 2404 if (error == 0) { 2405 ITS_CP(val, val32); 2406 error = copyout(&val32, uap->value, sizeof(val32)); 2407 } 2408 return (error); 2409} 2410 2411int 2412freebsd32_clock_getcpuclockid2(struct thread *td, 2413 struct freebsd32_clock_getcpuclockid2_args *uap) 2414{ 2415 clockid_t clk_id; 2416 int error; 2417 2418 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2419 uap->which, &clk_id); 2420 if (error == 0) 2421 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2422 return (error); 2423} 2424 2425int 2426freebsd32_thr_new(struct thread *td, 2427 struct freebsd32_thr_new_args *uap) 2428{ 2429 struct thr_param32 param32; 2430 struct thr_param param; 2431 int error; 2432 2433 if (uap->param_size < 0 || 2434 uap->param_size > sizeof(struct thr_param32)) 2435 return (EINVAL); 2436 bzero(¶m, sizeof(struct thr_param)); 2437 bzero(¶m32, sizeof(struct thr_param32)); 2438 error = copyin(uap->param, ¶m32, uap->param_size); 2439 if (error != 0) 2440 return (error); 2441 param.start_func = PTRIN(param32.start_func); 2442 param.arg = PTRIN(param32.arg); 2443 param.stack_base = PTRIN(param32.stack_base); 2444 param.stack_size = param32.stack_size; 2445 param.tls_base = PTRIN(param32.tls_base); 2446 param.tls_size = param32.tls_size; 2447 param.child_tid = PTRIN(param32.child_tid); 2448 param.parent_tid = PTRIN(param32.parent_tid); 2449 param.flags = param32.flags; 2450 param.rtp = PTRIN(param32.rtp); 2451 param.spare[0] = PTRIN(param32.spare[0]); 2452 param.spare[1] = PTRIN(param32.spare[1]); 2453 param.spare[2] = PTRIN(param32.spare[2]); 2454 2455 return (kern_thr_new(td, ¶m)); 2456} 2457 2458int 2459freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2460{ 2461 struct timespec32 ts32; 2462 struct timespec ts, *tsp; 2463 int error; 2464 2465 error = 0; 2466 tsp = NULL; 2467 if (uap->timeout != NULL) { 2468 error = copyin((const void *)uap->timeout, (void *)&ts32, 2469 sizeof(struct timespec32)); 2470 if (error != 0) 2471 return (error); 2472 ts.tv_sec = ts32.tv_sec; 2473 ts.tv_nsec = ts32.tv_nsec; 2474 tsp = &ts; 2475 } 2476 return (kern_thr_suspend(td, tsp)); 2477} 2478 2479void 2480siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2481{ 2482 bzero(dst, sizeof(*dst)); 2483 dst->si_signo = src->si_signo; 2484 dst->si_errno = src->si_errno; 2485 dst->si_code = src->si_code; 2486 dst->si_pid = src->si_pid; 2487 dst->si_uid = src->si_uid; 2488 dst->si_status = src->si_status; 2489 dst->si_addr = (uintptr_t)src->si_addr; 2490 dst->si_value.sival_int = src->si_value.sival_int; 2491 dst->si_timerid = src->si_timerid; 2492 dst->si_overrun = src->si_overrun; 2493} 2494 2495int 2496freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2497{ 2498 struct timespec32 ts32; 2499 struct timespec ts; 2500 struct timespec *timeout; 2501 sigset_t set; 2502 ksiginfo_t ksi; 2503 struct siginfo32 si32; 2504 int error; 2505 2506 if (uap->timeout) { 2507 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2508 if (error) 2509 return (error); 2510 ts.tv_sec = ts32.tv_sec; 2511 ts.tv_nsec = ts32.tv_nsec; 2512 timeout = &ts; 2513 } else 2514 timeout = NULL; 2515 2516 error = copyin(uap->set, &set, sizeof(set)); 2517 if (error) 2518 return (error); 2519 2520 error = kern_sigtimedwait(td, set, &ksi, timeout); 2521 if (error) 2522 return (error); 2523 2524 if (uap->info) { 2525 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2526 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2527 } 2528 2529 if (error == 0) 2530 td->td_retval[0] = ksi.ksi_signo; 2531 return (error); 2532} 2533 2534/* 2535 * MPSAFE 2536 */ 2537int 2538freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2539{ 2540 ksiginfo_t ksi; 2541 struct siginfo32 si32; 2542 sigset_t set; 2543 int error; 2544 2545 error = copyin(uap->set, &set, sizeof(set)); 2546 if (error) 2547 return (error); 2548 2549 error = kern_sigtimedwait(td, set, &ksi, NULL); 2550 if (error) 2551 return (error); 2552 2553 if (uap->info) { 2554 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2555 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2556 } 2557 if (error == 0) 2558 td->td_retval[0] = ksi.ksi_signo; 2559 return (error); 2560} 2561 2562int 2563freebsd32_cpuset_setid(struct thread *td, 2564 struct freebsd32_cpuset_setid_args *uap) 2565{ 2566 struct cpuset_setid_args ap; 2567 2568 ap.which = uap->which; 2569 ap.id = PAIR32TO64(id_t,uap->id); 2570 ap.setid = uap->setid; 2571 2572 return (sys_cpuset_setid(td, &ap)); 2573} 2574 2575int 2576freebsd32_cpuset_getid(struct thread *td, 2577 struct freebsd32_cpuset_getid_args *uap) 2578{ 2579 struct cpuset_getid_args ap; 2580 2581 ap.level = uap->level; 2582 ap.which = uap->which; 2583 ap.id = PAIR32TO64(id_t,uap->id); 2584 ap.setid = uap->setid; 2585 2586 return (sys_cpuset_getid(td, &ap)); 2587} 2588 2589int 2590freebsd32_cpuset_getaffinity(struct thread *td, 2591 struct freebsd32_cpuset_getaffinity_args *uap) 2592{ 2593 struct cpuset_getaffinity_args ap; 2594 2595 ap.level = uap->level; 2596 ap.which = uap->which; 2597 ap.id = PAIR32TO64(id_t,uap->id); 2598 ap.cpusetsize = uap->cpusetsize; 2599 ap.mask = uap->mask; 2600 2601 return (sys_cpuset_getaffinity(td, &ap)); 2602} 2603 2604int 2605freebsd32_cpuset_setaffinity(struct thread *td, 2606 struct freebsd32_cpuset_setaffinity_args *uap) 2607{ 2608 struct cpuset_setaffinity_args ap; 2609 2610 ap.level = uap->level; 2611 ap.which = uap->which; 2612 ap.id = PAIR32TO64(id_t,uap->id); 2613 ap.cpusetsize = uap->cpusetsize; 2614 ap.mask = uap->mask; 2615 2616 return (sys_cpuset_setaffinity(td, &ap)); 2617} 2618 2619int 2620freebsd32_nmount(struct thread *td, 2621 struct freebsd32_nmount_args /* { 2622 struct iovec *iovp; 2623 unsigned int iovcnt; 2624 int flags; 2625 } */ *uap) 2626{ 2627 struct uio *auio; 2628 uint64_t flags; 2629 int error; 2630 2631 /* 2632 * Mount flags are now 64-bits. On 32-bit archtectures only 2633 * 32-bits are passed in, but from here on everything handles 2634 * 64-bit flags correctly. 2635 */ 2636 flags = uap->flags; 2637 2638 AUDIT_ARG_FFLAGS(flags); 2639 2640 /* 2641 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2642 * userspace to set this flag, but we must filter it out if we want 2643 * MNT_UPDATE on the root file system to work. 2644 * MNT_ROOTFS should only be set by the kernel when mounting its 2645 * root file system. 2646 */ 2647 flags &= ~MNT_ROOTFS; 2648 2649 /* 2650 * check that we have an even number of iovec's 2651 * and that we have at least two options. 2652 */ 2653 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2654 return (EINVAL); 2655 2656 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2657 if (error) 2658 return (error); 2659 error = vfs_donmount(td, flags, auio); 2660 2661 free(auio, M_IOV); 2662 return error; 2663} 2664 2665#if 0 2666int 2667freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2668{ 2669 struct yyy32 *p32, s32; 2670 struct yyy *p = NULL, s; 2671 struct xxx_arg ap; 2672 int error; 2673 2674 if (uap->zzz) { 2675 error = copyin(uap->zzz, &s32, sizeof(s32)); 2676 if (error) 2677 return (error); 2678 /* translate in */ 2679 p = &s; 2680 } 2681 error = kern_xxx(td, p); 2682 if (error) 2683 return (error); 2684 if (uap->zzz) { 2685 /* translate out */ 2686 error = copyout(&s32, p32, sizeof(s32)); 2687 } 2688 return (error); 2689} 2690#endif 2691 2692int 2693syscall32_register(int *offset, struct sysent *new_sysent, 2694 struct sysent *old_sysent, int flags) 2695{ 2696 2697 if ((flags & ~SY_THR_STATIC) != 0) 2698 return (EINVAL); 2699 2700 if (*offset == NO_SYSCALL) { 2701 int i; 2702 2703 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2704 if (freebsd32_sysent[i].sy_call == 2705 (sy_call_t *)lkmnosys) 2706 break; 2707 if (i == SYS_MAXSYSCALL) 2708 return (ENFILE); 2709 *offset = i; 2710 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2711 return (EINVAL); 2712 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2713 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2714 return (EEXIST); 2715 2716 *old_sysent = freebsd32_sysent[*offset]; 2717 freebsd32_sysent[*offset] = *new_sysent; 2718 atomic_store_rel_32(&freebsd32_sysent[*offset].sy_thrcnt, flags); 2719 return (0); 2720} 2721 2722int 2723syscall32_deregister(int *offset, struct sysent *old_sysent) 2724{ 2725 2726 if (*offset == 0) 2727 return (0); 2728 2729 freebsd32_sysent[*offset] = *old_sysent; 2730 return (0); 2731} 2732 2733int 2734syscall32_module_handler(struct module *mod, int what, void *arg) 2735{ 2736 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2737 modspecific_t ms; 2738 int error; 2739 2740 switch (what) { 2741 case MOD_LOAD: 2742 error = syscall32_register(data->offset, data->new_sysent, 2743 &data->old_sysent, SY_THR_STATIC_KLD); 2744 if (error) { 2745 /* Leave a mark so we know to safely unload below. */ 2746 data->offset = NULL; 2747 return error; 2748 } 2749 ms.intval = *data->offset; 2750 MOD_XLOCK; 2751 module_setspecific(mod, &ms); 2752 MOD_XUNLOCK; 2753 if (data->chainevh) 2754 error = data->chainevh(mod, what, data->chainarg); 2755 return (error); 2756 case MOD_UNLOAD: 2757 /* 2758 * MOD_LOAD failed, so just return without calling the 2759 * chained handler since we didn't pass along the MOD_LOAD 2760 * event. 2761 */ 2762 if (data->offset == NULL) 2763 return (0); 2764 if (data->chainevh) { 2765 error = data->chainevh(mod, what, data->chainarg); 2766 if (error) 2767 return (error); 2768 } 2769 error = syscall32_deregister(data->offset, &data->old_sysent); 2770 return (error); 2771 default: 2772 error = EOPNOTSUPP; 2773 if (data->chainevh) 2774 error = data->chainevh(mod, what, data->chainarg); 2775 return (error); 2776 } 2777} 2778 2779int 2780syscall32_helper_register(struct syscall_helper_data *sd, int flags) 2781{ 2782 struct syscall_helper_data *sd1; 2783 int error; 2784 2785 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2786 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2787 &sd1->old_sysent, flags); 2788 if (error != 0) { 2789 syscall32_helper_unregister(sd); 2790 return (error); 2791 } 2792 sd1->registered = 1; 2793 } 2794 return (0); 2795} 2796 2797int 2798syscall32_helper_unregister(struct syscall_helper_data *sd) 2799{ 2800 struct syscall_helper_data *sd1; 2801 2802 for (sd1 = sd; sd1->registered != 0; sd1++) { 2803 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2804 sd1->registered = 0; 2805 } 2806 return (0); 2807} 2808 2809register_t * 2810freebsd32_copyout_strings(struct image_params *imgp) 2811{ 2812 int argc, envc, i; 2813 u_int32_t *vectp; 2814 char *stringp; 2815 uintptr_t destp; 2816 u_int32_t *stack_base; 2817 struct freebsd32_ps_strings *arginfo; 2818 char canary[sizeof(long) * 8]; 2819 int32_t pagesizes32[MAXPAGESIZES]; 2820 size_t execpath_len; 2821 int szsigcode; 2822 2823 /* 2824 * Calculate string base and vector table pointers. 2825 * Also deal with signal trampoline code for this exec type. 2826 */ 2827 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2828 execpath_len = strlen(imgp->execpath) + 1; 2829 else 2830 execpath_len = 0; 2831 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2832 sv_psstrings; 2833 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2834 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2835 else 2836 szsigcode = 0; 2837 destp = (uintptr_t)arginfo; 2838 2839 /* 2840 * install sigcode 2841 */ 2842 if (szsigcode != 0) { 2843 destp -= szsigcode; 2844 destp = rounddown2(destp, sizeof(uint32_t)); 2845 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2846 szsigcode); 2847 } 2848 2849 /* 2850 * Copy the image path for the rtld. 2851 */ 2852 if (execpath_len != 0) { 2853 destp -= execpath_len; 2854 imgp->execpathp = destp; 2855 copyout(imgp->execpath, (void *)destp, execpath_len); 2856 } 2857 2858 /* 2859 * Prepare the canary for SSP. 2860 */ 2861 arc4rand(canary, sizeof(canary), 0); 2862 destp -= sizeof(canary); 2863 imgp->canary = destp; 2864 copyout(canary, (void *)destp, sizeof(canary)); 2865 imgp->canarylen = sizeof(canary); 2866 2867 /* 2868 * Prepare the pagesizes array. 2869 */ 2870 for (i = 0; i < MAXPAGESIZES; i++) 2871 pagesizes32[i] = (uint32_t)pagesizes[i]; 2872 destp -= sizeof(pagesizes32); 2873 destp = rounddown2(destp, sizeof(uint32_t)); 2874 imgp->pagesizes = destp; 2875 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2876 imgp->pagesizeslen = sizeof(pagesizes32); 2877 2878 destp -= ARG_MAX - imgp->args->stringspace; 2879 destp = rounddown2(destp, sizeof(uint32_t)); 2880 2881 /* 2882 * If we have a valid auxargs ptr, prepare some room 2883 * on the stack. 2884 */ 2885 if (imgp->auxargs) { 2886 /* 2887 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2888 * lower compatibility. 2889 */ 2890 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2891 : (AT_COUNT * 2); 2892 /* 2893 * The '+ 2' is for the null pointers at the end of each of 2894 * the arg and env vector sets,and imgp->auxarg_size is room 2895 * for argument of Runtime loader. 2896 */ 2897 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2898 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2899 sizeof(u_int32_t)); 2900 } else { 2901 /* 2902 * The '+ 2' is for the null pointers at the end of each of 2903 * the arg and env vector sets 2904 */ 2905 vectp = (u_int32_t *)(destp - (imgp->args->argc + 2906 imgp->args->envc + 2) * sizeof(u_int32_t)); 2907 } 2908 2909 /* 2910 * vectp also becomes our initial stack base 2911 */ 2912 stack_base = vectp; 2913 2914 stringp = imgp->args->begin_argv; 2915 argc = imgp->args->argc; 2916 envc = imgp->args->envc; 2917 /* 2918 * Copy out strings - arguments and environment. 2919 */ 2920 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2921 2922 /* 2923 * Fill in "ps_strings" struct for ps, w, etc. 2924 */ 2925 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2926 suword32(&arginfo->ps_nargvstr, argc); 2927 2928 /* 2929 * Fill in argument portion of vector table. 2930 */ 2931 for (; argc > 0; --argc) { 2932 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2933 while (*stringp++ != 0) 2934 destp++; 2935 destp++; 2936 } 2937 2938 /* a null vector table pointer separates the argp's from the envp's */ 2939 suword32(vectp++, 0); 2940 2941 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2942 suword32(&arginfo->ps_nenvstr, envc); 2943 2944 /* 2945 * Fill in environment portion of vector table. 2946 */ 2947 for (; envc > 0; --envc) { 2948 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2949 while (*stringp++ != 0) 2950 destp++; 2951 destp++; 2952 } 2953 2954 /* end of vector table is a null pointer */ 2955 suword32(vectp, 0); 2956 2957 return ((register_t *)stack_base); 2958} 2959 2960int 2961freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2962{ 2963 struct kld_file_stat stat; 2964 struct kld32_file_stat stat32; 2965 int error, version; 2966 2967 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2968 != 0) 2969 return (error); 2970 if (version != sizeof(struct kld32_file_stat_1) && 2971 version != sizeof(struct kld32_file_stat)) 2972 return (EINVAL); 2973 2974 error = kern_kldstat(td, uap->fileid, &stat); 2975 if (error != 0) 2976 return (error); 2977 2978 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name)); 2979 CP(stat, stat32, refs); 2980 CP(stat, stat32, id); 2981 PTROUT_CP(stat, stat32, address); 2982 CP(stat, stat32, size); 2983 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname)); 2984 return (copyout(&stat32, uap->stat, version)); 2985} 2986 2987int 2988freebsd32_posix_fallocate(struct thread *td, 2989 struct freebsd32_posix_fallocate_args *uap) 2990{ 2991 int error; 2992 2993 error = kern_posix_fallocate(td, uap->fd, 2994 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 2995 return (kern_posix_error(td, error)); 2996} 2997 2998int 2999freebsd32_posix_fadvise(struct thread *td, 3000 struct freebsd32_posix_fadvise_args *uap) 3001{ 3002 int error; 3003 3004 error = kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset), 3005 PAIR32TO64(off_t, uap->len), uap->advice); 3006 return (kern_posix_error(td, error)); 3007} 3008 3009int 3010convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 3011{ 3012 3013 CP(*sig32, *sig, sigev_notify); 3014 switch (sig->sigev_notify) { 3015 case SIGEV_NONE: 3016 break; 3017 case SIGEV_THREAD_ID: 3018 CP(*sig32, *sig, sigev_notify_thread_id); 3019 /* FALLTHROUGH */ 3020 case SIGEV_SIGNAL: 3021 CP(*sig32, *sig, sigev_signo); 3022 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3023 break; 3024 case SIGEV_KEVENT: 3025 CP(*sig32, *sig, sigev_notify_kqueue); 3026 CP(*sig32, *sig, sigev_notify_kevent_flags); 3027 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3028 break; 3029 default: 3030 return (EINVAL); 3031 } 3032 return (0); 3033} 3034 3035int 3036freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3037{ 3038 void *data; 3039 union { 3040 struct procctl_reaper_status rs; 3041 struct procctl_reaper_pids rp; 3042 struct procctl_reaper_kill rk; 3043 } x; 3044 union { 3045 struct procctl_reaper_pids32 rp; 3046 } x32; 3047 int error, error1, flags; 3048 3049 switch (uap->com) { 3050 case PROC_SPROTECT: 3051 case PROC_TRACE_CTL: 3052 case PROC_TRAPCAP_CTL: 3053 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3054 if (error != 0) 3055 return (error); 3056 data = &flags; 3057 break; 3058 case PROC_REAP_ACQUIRE: 3059 case PROC_REAP_RELEASE: 3060 if (uap->data != NULL) 3061 return (EINVAL); 3062 data = NULL; 3063 break; 3064 case PROC_REAP_STATUS: 3065 data = &x.rs; 3066 break; 3067 case PROC_REAP_GETPIDS: 3068 error = copyin(uap->data, &x32.rp, sizeof(x32.rp)); 3069 if (error != 0) 3070 return (error); 3071 CP(x32.rp, x.rp, rp_count); 3072 PTRIN_CP(x32.rp, x.rp, rp_pids); 3073 data = &x.rp; 3074 break; 3075 case PROC_REAP_KILL: 3076 error = copyin(uap->data, &x.rk, sizeof(x.rk)); 3077 if (error != 0) 3078 return (error); 3079 data = &x.rk; 3080 break; 3081 case PROC_TRACE_STATUS: 3082 case PROC_TRAPCAP_STATUS: 3083 data = &flags; 3084 break; 3085 default: 3086 return (EINVAL); 3087 } 3088 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3089 uap->com, data); 3090 switch (uap->com) { 3091 case PROC_REAP_STATUS: 3092 if (error == 0) 3093 error = copyout(&x.rs, uap->data, sizeof(x.rs)); 3094 break; 3095 case PROC_REAP_KILL: 3096 error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); 3097 if (error == 0) 3098 error = error1; 3099 break; 3100 case PROC_TRACE_STATUS: 3101 case PROC_TRAPCAP_STATUS: 3102 if (error == 0) 3103 error = copyout(&flags, uap->data, sizeof(flags)); 3104 break; 3105 } 3106 return (error); 3107} 3108 3109int 3110freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 3111{ 3112 long tmp; 3113 3114 switch (uap->cmd) { 3115 /* 3116 * Do unsigned conversion for arg when operation 3117 * interprets it as flags or pointer. 3118 */ 3119 case F_SETLK_REMOTE: 3120 case F_SETLKW: 3121 case F_SETLK: 3122 case F_GETLK: 3123 case F_SETFD: 3124 case F_SETFL: 3125 case F_OGETLK: 3126 case F_OSETLK: 3127 case F_OSETLKW: 3128 tmp = (unsigned int)(uap->arg); 3129 break; 3130 default: 3131 tmp = uap->arg; 3132 break; 3133 } 3134 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 3135} 3136 3137int 3138freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap) 3139{ 3140 struct timespec32 ts32; 3141 struct timespec ts, *tsp; 3142 sigset_t set, *ssp; 3143 int error; 3144 3145 if (uap->ts != NULL) { 3146 error = copyin(uap->ts, &ts32, sizeof(ts32)); 3147 if (error != 0) 3148 return (error); 3149 CP(ts32, ts, tv_sec); 3150 CP(ts32, ts, tv_nsec); 3151 tsp = &ts; 3152 } else 3153 tsp = NULL; 3154 if (uap->set != NULL) { 3155 error = copyin(uap->set, &set, sizeof(set)); 3156 if (error != 0) 3157 return (error); 3158 ssp = &set; 3159 } else 3160 ssp = NULL; 3161 3162 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp)); 3163} 3164