freebsd32_misc.c revision 282448
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: head/sys/compat/freebsd32/freebsd32_misc.c 282448 2015-05-05 05:14:12Z peter $"); 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, struct freebsd4_freebsd32_getfsstat_args *uap) 248{ 249 struct statfs *buf, *sp; 250 struct statfs32 stat32; 251 size_t count, size, copycount; 252 int error; 253 254 count = uap->bufsize / sizeof(struct statfs32); 255 size = count * sizeof(struct statfs); 256 error = kern_getfsstat(td, &buf, size, &count, UIO_SYSSPACE, uap->flags); 257 if (size > 0) { 258 sp = buf; 259 copycount = count; 260 while (copycount > 0 && error == 0) { 261 copy_statfs(sp, &stat32); 262 error = copyout(&stat32, uap->buf, sizeof(stat32)); 263 sp++; 264 uap->buf++; 265 copycount--; 266 } 267 free(buf, M_TEMP); 268 } 269 if (error == 0) 270 td->td_retval[0] = count; 271 return (error); 272} 273#endif 274 275int 276freebsd32_sigaltstack(struct thread *td, 277 struct freebsd32_sigaltstack_args *uap) 278{ 279 struct sigaltstack32 s32; 280 struct sigaltstack ss, oss, *ssp; 281 int error; 282 283 if (uap->ss != NULL) { 284 error = copyin(uap->ss, &s32, sizeof(s32)); 285 if (error) 286 return (error); 287 PTRIN_CP(s32, ss, ss_sp); 288 CP(s32, ss, ss_size); 289 CP(s32, ss, ss_flags); 290 ssp = &ss; 291 } else 292 ssp = NULL; 293 error = kern_sigaltstack(td, ssp, &oss); 294 if (error == 0 && uap->oss != NULL) { 295 PTROUT_CP(oss, s32, ss_sp); 296 CP(oss, s32, ss_size); 297 CP(oss, s32, ss_flags); 298 error = copyout(&s32, uap->oss, sizeof(s32)); 299 } 300 return (error); 301} 302 303/* 304 * Custom version of exec_copyin_args() so that we can translate 305 * the pointers. 306 */ 307int 308freebsd32_exec_copyin_args(struct image_args *args, char *fname, 309 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 310{ 311 char *argp, *envp; 312 u_int32_t *p32, arg; 313 size_t length; 314 int error; 315 316 bzero(args, sizeof(*args)); 317 if (argv == NULL) 318 return (EFAULT); 319 320 /* 321 * Allocate demand-paged memory for the file name, argument, and 322 * environment strings. 323 */ 324 error = exec_alloc_args(args); 325 if (error != 0) 326 return (error); 327 328 /* 329 * Copy the file name. 330 */ 331 if (fname != NULL) { 332 args->fname = args->buf; 333 error = (segflg == UIO_SYSSPACE) ? 334 copystr(fname, args->fname, PATH_MAX, &length) : 335 copyinstr(fname, args->fname, PATH_MAX, &length); 336 if (error != 0) 337 goto err_exit; 338 } else 339 length = 0; 340 341 args->begin_argv = args->buf + length; 342 args->endp = args->begin_argv; 343 args->stringspace = ARG_MAX; 344 345 /* 346 * extract arguments first 347 */ 348 p32 = argv; 349 for (;;) { 350 error = copyin(p32++, &arg, sizeof(arg)); 351 if (error) 352 goto err_exit; 353 if (arg == 0) 354 break; 355 argp = PTRIN(arg); 356 error = copyinstr(argp, args->endp, args->stringspace, &length); 357 if (error) { 358 if (error == ENAMETOOLONG) 359 error = E2BIG; 360 goto err_exit; 361 } 362 args->stringspace -= length; 363 args->endp += length; 364 args->argc++; 365 } 366 367 args->begin_envv = args->endp; 368 369 /* 370 * extract environment strings 371 */ 372 if (envv) { 373 p32 = envv; 374 for (;;) { 375 error = copyin(p32++, &arg, sizeof(arg)); 376 if (error) 377 goto err_exit; 378 if (arg == 0) 379 break; 380 envp = PTRIN(arg); 381 error = copyinstr(envp, args->endp, args->stringspace, 382 &length); 383 if (error) { 384 if (error == ENAMETOOLONG) 385 error = E2BIG; 386 goto err_exit; 387 } 388 args->stringspace -= length; 389 args->endp += length; 390 args->envc++; 391 } 392 } 393 394 return (0); 395 396err_exit: 397 exec_free_args(args); 398 return (error); 399} 400 401int 402freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 403{ 404 struct image_args eargs; 405 int error; 406 407 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 408 uap->argv, uap->envv); 409 if (error == 0) 410 error = kern_execve(td, &eargs, NULL); 411 return (error); 412} 413 414int 415freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 416{ 417 struct image_args eargs; 418 int error; 419 420 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 421 uap->argv, uap->envv); 422 if (error == 0) { 423 eargs.fd = uap->fd; 424 error = kern_execve(td, &eargs, NULL); 425 } 426 return (error); 427} 428 429int 430freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 431{ 432 struct mprotect_args ap; 433 434 ap.addr = PTRIN(uap->addr); 435 ap.len = uap->len; 436 ap.prot = uap->prot; 437#if defined(__amd64__) 438 if (i386_read_exec && (ap.prot & PROT_READ) != 0) 439 ap.prot |= PROT_EXEC; 440#endif 441 return (sys_mprotect(td, &ap)); 442} 443 444int 445freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 446{ 447 struct mmap_args ap; 448 vm_offset_t addr = (vm_offset_t) uap->addr; 449 vm_size_t len = uap->len; 450 int prot = uap->prot; 451 int flags = uap->flags; 452 int fd = uap->fd; 453 off_t pos = PAIR32TO64(off_t,uap->pos); 454 455#if defined(__amd64__) 456 if (i386_read_exec && (prot & PROT_READ)) 457 prot |= PROT_EXEC; 458#endif 459 460 ap.addr = (void *) addr; 461 ap.len = len; 462 ap.prot = prot; 463 ap.flags = flags; 464 ap.fd = fd; 465 ap.pos = pos; 466 467 return (sys_mmap(td, &ap)); 468} 469 470#ifdef COMPAT_FREEBSD6 471int 472freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 473{ 474 struct freebsd32_mmap_args ap; 475 476 ap.addr = uap->addr; 477 ap.len = uap->len; 478 ap.prot = uap->prot; 479 ap.flags = uap->flags; 480 ap.fd = uap->fd; 481 ap.pos1 = uap->pos1; 482 ap.pos2 = uap->pos2; 483 484 return (freebsd32_mmap(td, &ap)); 485} 486#endif 487 488int 489freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 490{ 491 struct itimerval itv, oitv, *itvp; 492 struct itimerval32 i32; 493 int error; 494 495 if (uap->itv != NULL) { 496 error = copyin(uap->itv, &i32, sizeof(i32)); 497 if (error) 498 return (error); 499 TV_CP(i32, itv, it_interval); 500 TV_CP(i32, itv, it_value); 501 itvp = &itv; 502 } else 503 itvp = NULL; 504 error = kern_setitimer(td, uap->which, itvp, &oitv); 505 if (error || uap->oitv == NULL) 506 return (error); 507 TV_CP(oitv, i32, it_interval); 508 TV_CP(oitv, i32, it_value); 509 return (copyout(&i32, uap->oitv, sizeof(i32))); 510} 511 512int 513freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 514{ 515 struct itimerval itv; 516 struct itimerval32 i32; 517 int error; 518 519 error = kern_getitimer(td, uap->which, &itv); 520 if (error || uap->itv == NULL) 521 return (error); 522 TV_CP(itv, i32, it_interval); 523 TV_CP(itv, i32, it_value); 524 return (copyout(&i32, uap->itv, sizeof(i32))); 525} 526 527int 528freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 529{ 530 struct timeval32 tv32; 531 struct timeval tv, *tvp; 532 int error; 533 534 if (uap->tv != NULL) { 535 error = copyin(uap->tv, &tv32, sizeof(tv32)); 536 if (error) 537 return (error); 538 CP(tv32, tv, tv_sec); 539 CP(tv32, tv, tv_usec); 540 tvp = &tv; 541 } else 542 tvp = NULL; 543 /* 544 * XXX Do pointers need PTRIN()? 545 */ 546 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 547 sizeof(int32_t) * 8)); 548} 549 550int 551freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 552{ 553 struct timespec32 ts32; 554 struct timespec ts; 555 struct timeval tv, *tvp; 556 sigset_t set, *uset; 557 int error; 558 559 if (uap->ts != NULL) { 560 error = copyin(uap->ts, &ts32, sizeof(ts32)); 561 if (error != 0) 562 return (error); 563 CP(ts32, ts, tv_sec); 564 CP(ts32, ts, tv_nsec); 565 TIMESPEC_TO_TIMEVAL(&tv, &ts); 566 tvp = &tv; 567 } else 568 tvp = NULL; 569 if (uap->sm != NULL) { 570 error = copyin(uap->sm, &set, sizeof(set)); 571 if (error != 0) 572 return (error); 573 uset = &set; 574 } else 575 uset = NULL; 576 /* 577 * XXX Do pointers need PTRIN()? 578 */ 579 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 580 uset, sizeof(int32_t) * 8); 581 return (error); 582} 583 584/* 585 * Copy 'count' items into the destination list pointed to by uap->eventlist. 586 */ 587static int 588freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 589{ 590 struct freebsd32_kevent_args *uap; 591 struct kevent32 ks32[KQ_NEVENTS]; 592 int i, error = 0; 593 594 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 595 uap = (struct freebsd32_kevent_args *)arg; 596 597 for (i = 0; i < count; i++) { 598 CP(kevp[i], ks32[i], ident); 599 CP(kevp[i], ks32[i], filter); 600 CP(kevp[i], ks32[i], flags); 601 CP(kevp[i], ks32[i], fflags); 602 CP(kevp[i], ks32[i], data); 603 PTROUT_CP(kevp[i], ks32[i], udata); 604 } 605 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 606 if (error == 0) 607 uap->eventlist += count; 608 return (error); 609} 610 611/* 612 * Copy 'count' items from the list pointed to by uap->changelist. 613 */ 614static int 615freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 616{ 617 struct freebsd32_kevent_args *uap; 618 struct kevent32 ks32[KQ_NEVENTS]; 619 int i, error = 0; 620 621 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 622 uap = (struct freebsd32_kevent_args *)arg; 623 624 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 625 if (error) 626 goto done; 627 uap->changelist += count; 628 629 for (i = 0; i < count; i++) { 630 CP(ks32[i], kevp[i], ident); 631 CP(ks32[i], kevp[i], filter); 632 CP(ks32[i], kevp[i], flags); 633 CP(ks32[i], kevp[i], fflags); 634 CP(ks32[i], kevp[i], data); 635 PTRIN_CP(ks32[i], kevp[i], udata); 636 } 637done: 638 return (error); 639} 640 641int 642freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 643{ 644 struct timespec32 ts32; 645 struct timespec ts, *tsp; 646 struct kevent_copyops k_ops = { uap, 647 freebsd32_kevent_copyout, 648 freebsd32_kevent_copyin}; 649 int error; 650 651 652 if (uap->timeout) { 653 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 654 if (error) 655 return (error); 656 CP(ts32, ts, tv_sec); 657 CP(ts32, ts, tv_nsec); 658 tsp = &ts; 659 } else 660 tsp = NULL; 661 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 662 &k_ops, tsp); 663 return (error); 664} 665 666int 667freebsd32_gettimeofday(struct thread *td, 668 struct freebsd32_gettimeofday_args *uap) 669{ 670 struct timeval atv; 671 struct timeval32 atv32; 672 struct timezone rtz; 673 int error = 0; 674 675 if (uap->tp) { 676 microtime(&atv); 677 CP(atv, atv32, tv_sec); 678 CP(atv, atv32, tv_usec); 679 error = copyout(&atv32, uap->tp, sizeof (atv32)); 680 } 681 if (error == 0 && uap->tzp != NULL) { 682 rtz.tz_minuteswest = tz_minuteswest; 683 rtz.tz_dsttime = tz_dsttime; 684 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 685 } 686 return (error); 687} 688 689int 690freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 691{ 692 struct rusage32 s32; 693 struct rusage s; 694 int error; 695 696 error = kern_getrusage(td, uap->who, &s); 697 if (error) 698 return (error); 699 if (uap->rusage != NULL) { 700 freebsd32_rusage_out(&s, &s32); 701 error = copyout(&s32, uap->rusage, sizeof(s32)); 702 } 703 return (error); 704} 705 706static int 707freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 708{ 709 struct iovec32 iov32; 710 struct iovec *iov; 711 struct uio *uio; 712 u_int iovlen; 713 int error, i; 714 715 *uiop = NULL; 716 if (iovcnt > UIO_MAXIOV) 717 return (EINVAL); 718 iovlen = iovcnt * sizeof(struct iovec); 719 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 720 iov = (struct iovec *)(uio + 1); 721 for (i = 0; i < iovcnt; i++) { 722 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 723 if (error) { 724 free(uio, M_IOV); 725 return (error); 726 } 727 iov[i].iov_base = PTRIN(iov32.iov_base); 728 iov[i].iov_len = iov32.iov_len; 729 } 730 uio->uio_iov = iov; 731 uio->uio_iovcnt = iovcnt; 732 uio->uio_segflg = UIO_USERSPACE; 733 uio->uio_offset = -1; 734 uio->uio_resid = 0; 735 for (i = 0; i < iovcnt; i++) { 736 if (iov->iov_len > INT_MAX - uio->uio_resid) { 737 free(uio, M_IOV); 738 return (EINVAL); 739 } 740 uio->uio_resid += iov->iov_len; 741 iov++; 742 } 743 *uiop = uio; 744 return (0); 745} 746 747int 748freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 749{ 750 struct uio *auio; 751 int error; 752 753 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 754 if (error) 755 return (error); 756 error = kern_readv(td, uap->fd, auio); 757 free(auio, M_IOV); 758 return (error); 759} 760 761int 762freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 763{ 764 struct uio *auio; 765 int error; 766 767 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 768 if (error) 769 return (error); 770 error = kern_writev(td, uap->fd, auio); 771 free(auio, M_IOV); 772 return (error); 773} 774 775int 776freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 777{ 778 struct uio *auio; 779 int error; 780 781 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 782 if (error) 783 return (error); 784 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 785 free(auio, M_IOV); 786 return (error); 787} 788 789int 790freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 791{ 792 struct uio *auio; 793 int error; 794 795 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 796 if (error) 797 return (error); 798 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 799 free(auio, M_IOV); 800 return (error); 801} 802 803int 804freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 805 int error) 806{ 807 struct iovec32 iov32; 808 struct iovec *iov; 809 u_int iovlen; 810 int i; 811 812 *iovp = NULL; 813 if (iovcnt > UIO_MAXIOV) 814 return (error); 815 iovlen = iovcnt * sizeof(struct iovec); 816 iov = malloc(iovlen, M_IOV, M_WAITOK); 817 for (i = 0; i < iovcnt; i++) { 818 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 819 if (error) { 820 free(iov, M_IOV); 821 return (error); 822 } 823 iov[i].iov_base = PTRIN(iov32.iov_base); 824 iov[i].iov_len = iov32.iov_len; 825 } 826 *iovp = iov; 827 return (0); 828} 829 830static int 831freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 832{ 833 struct msghdr32 m32; 834 int error; 835 836 error = copyin(msg32, &m32, sizeof(m32)); 837 if (error) 838 return (error); 839 msg->msg_name = PTRIN(m32.msg_name); 840 msg->msg_namelen = m32.msg_namelen; 841 msg->msg_iov = PTRIN(m32.msg_iov); 842 msg->msg_iovlen = m32.msg_iovlen; 843 msg->msg_control = PTRIN(m32.msg_control); 844 msg->msg_controllen = m32.msg_controllen; 845 msg->msg_flags = m32.msg_flags; 846 return (0); 847} 848 849static int 850freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 851{ 852 struct msghdr32 m32; 853 int error; 854 855 m32.msg_name = PTROUT(msg->msg_name); 856 m32.msg_namelen = msg->msg_namelen; 857 m32.msg_iov = PTROUT(msg->msg_iov); 858 m32.msg_iovlen = msg->msg_iovlen; 859 m32.msg_control = PTROUT(msg->msg_control); 860 m32.msg_controllen = msg->msg_controllen; 861 m32.msg_flags = msg->msg_flags; 862 error = copyout(&m32, msg32, sizeof(m32)); 863 return (error); 864} 865 866#ifndef __mips__ 867#define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 868#else 869#define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 870#endif 871#define FREEBSD32_ALIGN(p) \ 872 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 873#define FREEBSD32_CMSG_SPACE(l) \ 874 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 875 876#define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 877 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 878static int 879freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 880{ 881 struct cmsghdr *cm; 882 void *data; 883 socklen_t clen, datalen; 884 int error; 885 caddr_t ctlbuf; 886 int len, maxlen, copylen; 887 struct mbuf *m; 888 error = 0; 889 890 len = msg->msg_controllen; 891 maxlen = msg->msg_controllen; 892 msg->msg_controllen = 0; 893 894 m = control; 895 ctlbuf = msg->msg_control; 896 897 while (m && len > 0) { 898 cm = mtod(m, struct cmsghdr *); 899 clen = m->m_len; 900 901 while (cm != NULL) { 902 903 if (sizeof(struct cmsghdr) > clen || 904 cm->cmsg_len > clen) { 905 error = EINVAL; 906 break; 907 } 908 909 data = CMSG_DATA(cm); 910 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 911 912 /* Adjust message length */ 913 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 914 datalen; 915 916 917 /* Copy cmsghdr */ 918 copylen = sizeof(struct cmsghdr); 919 if (len < copylen) { 920 msg->msg_flags |= MSG_CTRUNC; 921 copylen = len; 922 } 923 924 error = copyout(cm,ctlbuf,copylen); 925 if (error) 926 goto exit; 927 928 ctlbuf += FREEBSD32_ALIGN(copylen); 929 len -= FREEBSD32_ALIGN(copylen); 930 931 if (len <= 0) 932 break; 933 934 /* Copy data */ 935 copylen = datalen; 936 if (len < copylen) { 937 msg->msg_flags |= MSG_CTRUNC; 938 copylen = len; 939 } 940 941 error = copyout(data,ctlbuf,copylen); 942 if (error) 943 goto exit; 944 945 ctlbuf += FREEBSD32_ALIGN(copylen); 946 len -= FREEBSD32_ALIGN(copylen); 947 948 if (CMSG_SPACE(datalen) < clen) { 949 clen -= CMSG_SPACE(datalen); 950 cm = (struct cmsghdr *) 951 ((caddr_t)cm + CMSG_SPACE(datalen)); 952 } else { 953 clen = 0; 954 cm = NULL; 955 } 956 } 957 m = m->m_next; 958 } 959 960 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 961 962exit: 963 return (error); 964 965} 966 967int 968freebsd32_recvmsg(td, uap) 969 struct thread *td; 970 struct freebsd32_recvmsg_args /* { 971 int s; 972 struct msghdr32 *msg; 973 int flags; 974 } */ *uap; 975{ 976 struct msghdr msg; 977 struct msghdr32 m32; 978 struct iovec *uiov, *iov; 979 struct mbuf *control = NULL; 980 struct mbuf **controlp; 981 982 int error; 983 error = copyin(uap->msg, &m32, sizeof(m32)); 984 if (error) 985 return (error); 986 error = freebsd32_copyinmsghdr(uap->msg, &msg); 987 if (error) 988 return (error); 989 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 990 EMSGSIZE); 991 if (error) 992 return (error); 993 msg.msg_flags = uap->flags; 994 uiov = msg.msg_iov; 995 msg.msg_iov = iov; 996 997 controlp = (msg.msg_control != NULL) ? &control : NULL; 998 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 999 if (error == 0) { 1000 msg.msg_iov = uiov; 1001 1002 if (control != NULL) 1003 error = freebsd32_copy_msg_out(&msg, control); 1004 else 1005 msg.msg_controllen = 0; 1006 1007 if (error == 0) 1008 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1009 } 1010 free(iov, M_IOV); 1011 1012 if (control != NULL) 1013 m_freem(control); 1014 1015 return (error); 1016} 1017 1018/* 1019 * Copy-in the array of control messages constructed using alignment 1020 * and padding suitable for a 32-bit environment and construct an 1021 * mbuf using alignment and padding suitable for a 64-bit kernel. 1022 * The alignment and padding are defined indirectly by CMSG_DATA(), 1023 * CMSG_SPACE() and CMSG_LEN(). 1024 */ 1025static int 1026freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1027{ 1028 struct mbuf *m; 1029 void *md; 1030 u_int idx, len, msglen; 1031 int error; 1032 1033 buflen = FREEBSD32_ALIGN(buflen); 1034 1035 if (buflen > MCLBYTES) 1036 return (EINVAL); 1037 1038 /* 1039 * Iterate over the buffer and get the length of each message 1040 * in there. This has 32-bit alignment and padding. Use it to 1041 * determine the length of these messages when using 64-bit 1042 * alignment and padding. 1043 */ 1044 idx = 0; 1045 len = 0; 1046 while (idx < buflen) { 1047 error = copyin(buf + idx, &msglen, sizeof(msglen)); 1048 if (error) 1049 return (error); 1050 if (msglen < sizeof(struct cmsghdr)) 1051 return (EINVAL); 1052 msglen = FREEBSD32_ALIGN(msglen); 1053 if (idx + msglen > buflen) 1054 return (EINVAL); 1055 idx += msglen; 1056 msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) - 1057 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1058 len += CMSG_ALIGN(msglen); 1059 } 1060 1061 if (len > MCLBYTES) 1062 return (EINVAL); 1063 1064 m = m_get(M_WAITOK, MT_CONTROL); 1065 if (len > MLEN) 1066 MCLGET(m, M_WAITOK); 1067 m->m_len = len; 1068 1069 md = mtod(m, void *); 1070 while (buflen > 0) { 1071 error = copyin(buf, md, sizeof(struct cmsghdr)); 1072 if (error) 1073 break; 1074 msglen = *(u_int *)md; 1075 msglen = FREEBSD32_ALIGN(msglen); 1076 1077 /* Modify the message length to account for alignment. */ 1078 *(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) - 1079 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1080 1081 md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr)); 1082 buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1083 buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1084 1085 msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1086 if (msglen > 0) { 1087 error = copyin(buf, md, msglen); 1088 if (error) 1089 break; 1090 md = (char *)md + CMSG_ALIGN(msglen); 1091 buf += msglen; 1092 buflen -= msglen; 1093 } 1094 } 1095 1096 if (error) 1097 m_free(m); 1098 else 1099 *mp = m; 1100 return (error); 1101} 1102 1103int 1104freebsd32_sendmsg(struct thread *td, 1105 struct freebsd32_sendmsg_args *uap) 1106{ 1107 struct msghdr msg; 1108 struct msghdr32 m32; 1109 struct iovec *iov; 1110 struct mbuf *control = NULL; 1111 struct sockaddr *to = NULL; 1112 int error; 1113 1114 error = copyin(uap->msg, &m32, sizeof(m32)); 1115 if (error) 1116 return (error); 1117 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1118 if (error) 1119 return (error); 1120 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1121 EMSGSIZE); 1122 if (error) 1123 return (error); 1124 msg.msg_iov = iov; 1125 if (msg.msg_name != NULL) { 1126 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1127 if (error) { 1128 to = NULL; 1129 goto out; 1130 } 1131 msg.msg_name = to; 1132 } 1133 1134 if (msg.msg_control) { 1135 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1136 error = EINVAL; 1137 goto out; 1138 } 1139 1140 error = freebsd32_copyin_control(&control, msg.msg_control, 1141 msg.msg_controllen); 1142 if (error) 1143 goto out; 1144 1145 msg.msg_control = NULL; 1146 msg.msg_controllen = 0; 1147 } 1148 1149 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1150 UIO_USERSPACE); 1151 1152out: 1153 free(iov, M_IOV); 1154 if (to) 1155 free(to, M_SONAME); 1156 return (error); 1157} 1158 1159int 1160freebsd32_recvfrom(struct thread *td, 1161 struct freebsd32_recvfrom_args *uap) 1162{ 1163 struct msghdr msg; 1164 struct iovec aiov; 1165 int error; 1166 1167 if (uap->fromlenaddr) { 1168 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1169 sizeof(msg.msg_namelen)); 1170 if (error) 1171 return (error); 1172 } else { 1173 msg.msg_namelen = 0; 1174 } 1175 1176 msg.msg_name = PTRIN(uap->from); 1177 msg.msg_iov = &aiov; 1178 msg.msg_iovlen = 1; 1179 aiov.iov_base = PTRIN(uap->buf); 1180 aiov.iov_len = uap->len; 1181 msg.msg_control = NULL; 1182 msg.msg_flags = uap->flags; 1183 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1184 if (error == 0 && uap->fromlenaddr) 1185 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1186 sizeof (msg.msg_namelen)); 1187 return (error); 1188} 1189 1190int 1191freebsd32_settimeofday(struct thread *td, 1192 struct freebsd32_settimeofday_args *uap) 1193{ 1194 struct timeval32 tv32; 1195 struct timeval tv, *tvp; 1196 struct timezone tz, *tzp; 1197 int error; 1198 1199 if (uap->tv) { 1200 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1201 if (error) 1202 return (error); 1203 CP(tv32, tv, tv_sec); 1204 CP(tv32, tv, tv_usec); 1205 tvp = &tv; 1206 } else 1207 tvp = NULL; 1208 if (uap->tzp) { 1209 error = copyin(uap->tzp, &tz, sizeof(tz)); 1210 if (error) 1211 return (error); 1212 tzp = &tz; 1213 } else 1214 tzp = NULL; 1215 return (kern_settimeofday(td, tvp, tzp)); 1216} 1217 1218int 1219freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1220{ 1221 struct timeval32 s32[2]; 1222 struct timeval s[2], *sp; 1223 int error; 1224 1225 if (uap->tptr != NULL) { 1226 error = copyin(uap->tptr, s32, sizeof(s32)); 1227 if (error) 1228 return (error); 1229 CP(s32[0], s[0], tv_sec); 1230 CP(s32[0], s[0], tv_usec); 1231 CP(s32[1], s[1], tv_sec); 1232 CP(s32[1], s[1], tv_usec); 1233 sp = s; 1234 } else 1235 sp = NULL; 1236 return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE, 1237 sp, UIO_SYSSPACE)); 1238} 1239 1240int 1241freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1242{ 1243 struct timeval32 s32[2]; 1244 struct timeval s[2], *sp; 1245 int error; 1246 1247 if (uap->tptr != NULL) { 1248 error = copyin(uap->tptr, s32, sizeof(s32)); 1249 if (error) 1250 return (error); 1251 CP(s32[0], s[0], tv_sec); 1252 CP(s32[0], s[0], tv_usec); 1253 CP(s32[1], s[1], tv_sec); 1254 CP(s32[1], s[1], tv_usec); 1255 sp = s; 1256 } else 1257 sp = NULL; 1258 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1259} 1260 1261int 1262freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1263{ 1264 struct timeval32 s32[2]; 1265 struct timeval s[2], *sp; 1266 int error; 1267 1268 if (uap->tptr != NULL) { 1269 error = copyin(uap->tptr, s32, sizeof(s32)); 1270 if (error) 1271 return (error); 1272 CP(s32[0], s[0], tv_sec); 1273 CP(s32[0], s[0], tv_usec); 1274 CP(s32[1], s[1], tv_sec); 1275 CP(s32[1], s[1], tv_usec); 1276 sp = s; 1277 } else 1278 sp = NULL; 1279 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1280} 1281 1282int 1283freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1284{ 1285 struct timeval32 s32[2]; 1286 struct timeval s[2], *sp; 1287 int error; 1288 1289 if (uap->times != NULL) { 1290 error = copyin(uap->times, s32, sizeof(s32)); 1291 if (error) 1292 return (error); 1293 CP(s32[0], s[0], tv_sec); 1294 CP(s32[0], s[0], tv_usec); 1295 CP(s32[1], s[1], tv_sec); 1296 CP(s32[1], s[1], tv_usec); 1297 sp = s; 1298 } else 1299 sp = NULL; 1300 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1301 sp, UIO_SYSSPACE)); 1302} 1303 1304int 1305freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap) 1306{ 1307 struct timespec32 ts32[2]; 1308 struct timespec ts[2], *tsp; 1309 int error; 1310 1311 if (uap->times != NULL) { 1312 error = copyin(uap->times, ts32, sizeof(ts32)); 1313 if (error) 1314 return (error); 1315 CP(ts32[0], ts[0], tv_sec); 1316 CP(ts32[0], ts[0], tv_nsec); 1317 CP(ts32[1], ts[1], tv_sec); 1318 CP(ts32[1], ts[1], tv_nsec); 1319 tsp = ts; 1320 } else 1321 tsp = NULL; 1322 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE)); 1323} 1324 1325int 1326freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap) 1327{ 1328 struct timespec32 ts32[2]; 1329 struct timespec ts[2], *tsp; 1330 int error; 1331 1332 if (uap->times != NULL) { 1333 error = copyin(uap->times, ts32, sizeof(ts32)); 1334 if (error) 1335 return (error); 1336 CP(ts32[0], ts[0], tv_sec); 1337 CP(ts32[0], ts[0], tv_nsec); 1338 CP(ts32[1], ts[1], tv_sec); 1339 CP(ts32[1], ts[1], tv_nsec); 1340 tsp = ts; 1341 } else 1342 tsp = NULL; 1343 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE, 1344 tsp, UIO_SYSSPACE, uap->flag)); 1345} 1346 1347int 1348freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1349{ 1350 struct timeval32 tv32; 1351 struct timeval delta, olddelta, *deltap; 1352 int error; 1353 1354 if (uap->delta) { 1355 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1356 if (error) 1357 return (error); 1358 CP(tv32, delta, tv_sec); 1359 CP(tv32, delta, tv_usec); 1360 deltap = δ 1361 } else 1362 deltap = NULL; 1363 error = kern_adjtime(td, deltap, &olddelta); 1364 if (uap->olddelta && error == 0) { 1365 CP(olddelta, tv32, tv_sec); 1366 CP(olddelta, tv32, tv_usec); 1367 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1368 } 1369 return (error); 1370} 1371 1372#ifdef COMPAT_FREEBSD4 1373int 1374freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1375{ 1376 struct statfs32 s32; 1377 struct statfs s; 1378 int error; 1379 1380 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1381 if (error) 1382 return (error); 1383 copy_statfs(&s, &s32); 1384 return (copyout(&s32, uap->buf, sizeof(s32))); 1385} 1386#endif 1387 1388#ifdef COMPAT_FREEBSD4 1389int 1390freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1391{ 1392 struct statfs32 s32; 1393 struct statfs s; 1394 int error; 1395 1396 error = kern_fstatfs(td, uap->fd, &s); 1397 if (error) 1398 return (error); 1399 copy_statfs(&s, &s32); 1400 return (copyout(&s32, uap->buf, sizeof(s32))); 1401} 1402#endif 1403 1404#ifdef COMPAT_FREEBSD4 1405int 1406freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1407{ 1408 struct statfs32 s32; 1409 struct statfs s; 1410 fhandle_t fh; 1411 int error; 1412 1413 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1414 return (error); 1415 error = kern_fhstatfs(td, fh, &s); 1416 if (error) 1417 return (error); 1418 copy_statfs(&s, &s32); 1419 return (copyout(&s32, uap->buf, sizeof(s32))); 1420} 1421#endif 1422 1423int 1424freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1425{ 1426 struct pread_args ap; 1427 1428 ap.fd = uap->fd; 1429 ap.buf = uap->buf; 1430 ap.nbyte = uap->nbyte; 1431 ap.offset = PAIR32TO64(off_t,uap->offset); 1432 return (sys_pread(td, &ap)); 1433} 1434 1435int 1436freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1437{ 1438 struct pwrite_args ap; 1439 1440 ap.fd = uap->fd; 1441 ap.buf = uap->buf; 1442 ap.nbyte = uap->nbyte; 1443 ap.offset = PAIR32TO64(off_t,uap->offset); 1444 return (sys_pwrite(td, &ap)); 1445} 1446 1447#ifdef COMPAT_43 1448int 1449ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1450{ 1451 struct lseek_args nuap; 1452 1453 nuap.fd = uap->fd; 1454 nuap.offset = uap->offset; 1455 nuap.whence = uap->whence; 1456 return (sys_lseek(td, &nuap)); 1457} 1458#endif 1459 1460int 1461freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1462{ 1463 int error; 1464 struct lseek_args ap; 1465 off_t pos; 1466 1467 ap.fd = uap->fd; 1468 ap.offset = PAIR32TO64(off_t,uap->offset); 1469 ap.whence = uap->whence; 1470 error = sys_lseek(td, &ap); 1471 /* Expand the quad return into two parts for eax and edx */ 1472 pos = td->td_uretoff.tdu_off; 1473 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1474 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1475 return error; 1476} 1477 1478int 1479freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1480{ 1481 struct truncate_args ap; 1482 1483 ap.path = uap->path; 1484 ap.length = PAIR32TO64(off_t,uap->length); 1485 return (sys_truncate(td, &ap)); 1486} 1487 1488int 1489freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1490{ 1491 struct ftruncate_args ap; 1492 1493 ap.fd = uap->fd; 1494 ap.length = PAIR32TO64(off_t,uap->length); 1495 return (sys_ftruncate(td, &ap)); 1496} 1497 1498#ifdef COMPAT_43 1499int 1500ofreebsd32_getdirentries(struct thread *td, 1501 struct ofreebsd32_getdirentries_args *uap) 1502{ 1503 struct ogetdirentries_args ap; 1504 int error; 1505 long loff; 1506 int32_t loff_cut; 1507 1508 ap.fd = uap->fd; 1509 ap.buf = uap->buf; 1510 ap.count = uap->count; 1511 ap.basep = NULL; 1512 error = kern_ogetdirentries(td, &ap, &loff); 1513 if (error == 0) { 1514 loff_cut = loff; 1515 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1516 } 1517 return (error); 1518} 1519#endif 1520 1521int 1522freebsd32_getdirentries(struct thread *td, 1523 struct freebsd32_getdirentries_args *uap) 1524{ 1525 long base; 1526 int32_t base32; 1527 int error; 1528 1529 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1530 NULL, UIO_USERSPACE); 1531 if (error) 1532 return (error); 1533 if (uap->basep != NULL) { 1534 base32 = base; 1535 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1536 } 1537 return (error); 1538} 1539 1540#ifdef COMPAT_FREEBSD6 1541/* versions with the 'int pad' argument */ 1542int 1543freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1544{ 1545 struct pread_args ap; 1546 1547 ap.fd = uap->fd; 1548 ap.buf = uap->buf; 1549 ap.nbyte = uap->nbyte; 1550 ap.offset = PAIR32TO64(off_t,uap->offset); 1551 return (sys_pread(td, &ap)); 1552} 1553 1554int 1555freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1556{ 1557 struct pwrite_args ap; 1558 1559 ap.fd = uap->fd; 1560 ap.buf = uap->buf; 1561 ap.nbyte = uap->nbyte; 1562 ap.offset = PAIR32TO64(off_t,uap->offset); 1563 return (sys_pwrite(td, &ap)); 1564} 1565 1566int 1567freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1568{ 1569 int error; 1570 struct lseek_args ap; 1571 off_t pos; 1572 1573 ap.fd = uap->fd; 1574 ap.offset = PAIR32TO64(off_t,uap->offset); 1575 ap.whence = uap->whence; 1576 error = sys_lseek(td, &ap); 1577 /* Expand the quad return into two parts for eax and edx */ 1578 pos = *(off_t *)(td->td_retval); 1579 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1580 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1581 return error; 1582} 1583 1584int 1585freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1586{ 1587 struct truncate_args ap; 1588 1589 ap.path = uap->path; 1590 ap.length = PAIR32TO64(off_t,uap->length); 1591 return (sys_truncate(td, &ap)); 1592} 1593 1594int 1595freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1596{ 1597 struct ftruncate_args ap; 1598 1599 ap.fd = uap->fd; 1600 ap.length = PAIR32TO64(off_t,uap->length); 1601 return (sys_ftruncate(td, &ap)); 1602} 1603#endif /* COMPAT_FREEBSD6 */ 1604 1605struct sf_hdtr32 { 1606 uint32_t headers; 1607 int hdr_cnt; 1608 uint32_t trailers; 1609 int trl_cnt; 1610}; 1611 1612static int 1613freebsd32_do_sendfile(struct thread *td, 1614 struct freebsd32_sendfile_args *uap, int compat) 1615{ 1616 struct sf_hdtr32 hdtr32; 1617 struct sf_hdtr hdtr; 1618 struct uio *hdr_uio, *trl_uio; 1619 struct file *fp; 1620 cap_rights_t rights; 1621 struct iovec32 *iov32; 1622 off_t offset, sbytes; 1623 int error; 1624 1625 offset = PAIR32TO64(off_t, uap->offset); 1626 if (offset < 0) 1627 return (EINVAL); 1628 1629 hdr_uio = trl_uio = NULL; 1630 1631 if (uap->hdtr != NULL) { 1632 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1633 if (error) 1634 goto out; 1635 PTRIN_CP(hdtr32, hdtr, headers); 1636 CP(hdtr32, hdtr, hdr_cnt); 1637 PTRIN_CP(hdtr32, hdtr, trailers); 1638 CP(hdtr32, hdtr, trl_cnt); 1639 1640 if (hdtr.headers != NULL) { 1641 iov32 = PTRIN(hdtr32.headers); 1642 error = freebsd32_copyinuio(iov32, 1643 hdtr32.hdr_cnt, &hdr_uio); 1644 if (error) 1645 goto out; 1646 } 1647 if (hdtr.trailers != NULL) { 1648 iov32 = PTRIN(hdtr32.trailers); 1649 error = freebsd32_copyinuio(iov32, 1650 hdtr32.trl_cnt, &trl_uio); 1651 if (error) 1652 goto out; 1653 } 1654 } 1655 1656 AUDIT_ARG_FD(uap->fd); 1657 1658 if ((error = fget_read(td, uap->fd, 1659 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) 1660 goto out; 1661 1662 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1663 uap->nbytes, &sbytes, uap->flags, compat ? SFK_COMPAT : 0, td); 1664 fdrop(fp, td); 1665 1666 if (uap->sbytes != NULL) 1667 copyout(&sbytes, uap->sbytes, sizeof(off_t)); 1668 1669out: 1670 if (hdr_uio) 1671 free(hdr_uio, M_IOV); 1672 if (trl_uio) 1673 free(trl_uio, M_IOV); 1674 return (error); 1675} 1676 1677#ifdef COMPAT_FREEBSD4 1678int 1679freebsd4_freebsd32_sendfile(struct thread *td, 1680 struct freebsd4_freebsd32_sendfile_args *uap) 1681{ 1682 return (freebsd32_do_sendfile(td, 1683 (struct freebsd32_sendfile_args *)uap, 1)); 1684} 1685#endif 1686 1687int 1688freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1689{ 1690 1691 return (freebsd32_do_sendfile(td, uap, 0)); 1692} 1693 1694static void 1695copy_stat(struct stat *in, struct stat32 *out) 1696{ 1697 1698 CP(*in, *out, st_dev); 1699 CP(*in, *out, st_ino); 1700 CP(*in, *out, st_mode); 1701 CP(*in, *out, st_nlink); 1702 CP(*in, *out, st_uid); 1703 CP(*in, *out, st_gid); 1704 CP(*in, *out, st_rdev); 1705 TS_CP(*in, *out, st_atim); 1706 TS_CP(*in, *out, st_mtim); 1707 TS_CP(*in, *out, st_ctim); 1708 CP(*in, *out, st_size); 1709 CP(*in, *out, st_blocks); 1710 CP(*in, *out, st_blksize); 1711 CP(*in, *out, st_flags); 1712 CP(*in, *out, st_gen); 1713 TS_CP(*in, *out, st_birthtim); 1714} 1715 1716#ifdef COMPAT_43 1717static void 1718copy_ostat(struct stat *in, struct ostat32 *out) 1719{ 1720 1721 CP(*in, *out, st_dev); 1722 CP(*in, *out, st_ino); 1723 CP(*in, *out, st_mode); 1724 CP(*in, *out, st_nlink); 1725 CP(*in, *out, st_uid); 1726 CP(*in, *out, st_gid); 1727 CP(*in, *out, st_rdev); 1728 CP(*in, *out, st_size); 1729 TS_CP(*in, *out, st_atim); 1730 TS_CP(*in, *out, st_mtim); 1731 TS_CP(*in, *out, st_ctim); 1732 CP(*in, *out, st_blksize); 1733 CP(*in, *out, st_blocks); 1734 CP(*in, *out, st_flags); 1735 CP(*in, *out, st_gen); 1736} 1737#endif 1738 1739int 1740freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1741{ 1742 struct stat sb; 1743 struct stat32 sb32; 1744 int error; 1745 1746 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1747 &sb, NULL); 1748 if (error) 1749 return (error); 1750 copy_stat(&sb, &sb32); 1751 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1752 return (error); 1753} 1754 1755#ifdef COMPAT_43 1756int 1757ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1758{ 1759 struct stat sb; 1760 struct ostat32 sb32; 1761 int error; 1762 1763 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1764 &sb, NULL); 1765 if (error) 1766 return (error); 1767 copy_ostat(&sb, &sb32); 1768 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1769 return (error); 1770} 1771#endif 1772 1773int 1774freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1775{ 1776 struct stat ub; 1777 struct stat32 ub32; 1778 int error; 1779 1780 error = kern_fstat(td, uap->fd, &ub); 1781 if (error) 1782 return (error); 1783 copy_stat(&ub, &ub32); 1784 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1785 return (error); 1786} 1787 1788#ifdef COMPAT_43 1789int 1790ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1791{ 1792 struct stat ub; 1793 struct ostat32 ub32; 1794 int error; 1795 1796 error = kern_fstat(td, uap->fd, &ub); 1797 if (error) 1798 return (error); 1799 copy_ostat(&ub, &ub32); 1800 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1801 return (error); 1802} 1803#endif 1804 1805int 1806freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1807{ 1808 struct stat ub; 1809 struct stat32 ub32; 1810 int error; 1811 1812 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, 1813 &ub, NULL); 1814 if (error) 1815 return (error); 1816 copy_stat(&ub, &ub32); 1817 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1818 return (error); 1819} 1820 1821int 1822freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1823{ 1824 struct stat sb; 1825 struct stat32 sb32; 1826 int error; 1827 1828 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1829 UIO_USERSPACE, &sb, NULL); 1830 if (error) 1831 return (error); 1832 copy_stat(&sb, &sb32); 1833 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1834 return (error); 1835} 1836 1837#ifdef COMPAT_43 1838int 1839ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1840{ 1841 struct stat sb; 1842 struct ostat32 sb32; 1843 int error; 1844 1845 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1846 UIO_USERSPACE, &sb, NULL); 1847 if (error) 1848 return (error); 1849 copy_ostat(&sb, &sb32); 1850 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1851 return (error); 1852} 1853#endif 1854 1855int 1856freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1857{ 1858 int error, name[CTL_MAXNAME]; 1859 size_t j, oldlen; 1860 uint32_t tmp; 1861 1862 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1863 return (EINVAL); 1864 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1865 if (error) 1866 return (error); 1867 if (uap->oldlenp) { 1868 error = fueword32(uap->oldlenp, &tmp); 1869 oldlen = tmp; 1870 } else { 1871 oldlen = 0; 1872 } 1873 if (error != 0) 1874 return (EFAULT); 1875 error = userland_sysctl(td, name, uap->namelen, 1876 uap->old, &oldlen, 1, 1877 uap->new, uap->newlen, &j, SCTL_MASK32); 1878 if (error && error != ENOMEM) 1879 return (error); 1880 if (uap->oldlenp) 1881 suword32(uap->oldlenp, j); 1882 return (0); 1883} 1884 1885int 1886freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1887{ 1888 uint32_t version; 1889 int error; 1890 struct jail j; 1891 1892 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1893 if (error) 1894 return (error); 1895 1896 switch (version) { 1897 case 0: 1898 { 1899 /* FreeBSD single IPv4 jails. */ 1900 struct jail32_v0 j32_v0; 1901 1902 bzero(&j, sizeof(struct jail)); 1903 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1904 if (error) 1905 return (error); 1906 CP(j32_v0, j, version); 1907 PTRIN_CP(j32_v0, j, path); 1908 PTRIN_CP(j32_v0, j, hostname); 1909 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1910 break; 1911 } 1912 1913 case 1: 1914 /* 1915 * Version 1 was used by multi-IPv4 jail implementations 1916 * that never made it into the official kernel. 1917 */ 1918 return (EINVAL); 1919 1920 case 2: /* JAIL_API_VERSION */ 1921 { 1922 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1923 struct jail32 j32; 1924 1925 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1926 if (error) 1927 return (error); 1928 CP(j32, j, version); 1929 PTRIN_CP(j32, j, path); 1930 PTRIN_CP(j32, j, hostname); 1931 PTRIN_CP(j32, j, jailname); 1932 CP(j32, j, ip4s); 1933 CP(j32, j, ip6s); 1934 PTRIN_CP(j32, j, ip4); 1935 PTRIN_CP(j32, j, ip6); 1936 break; 1937 } 1938 1939 default: 1940 /* Sci-Fi jails are not supported, sorry. */ 1941 return (EINVAL); 1942 } 1943 return (kern_jail(td, &j)); 1944} 1945 1946int 1947freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1948{ 1949 struct uio *auio; 1950 int error; 1951 1952 /* Check that we have an even number of iovecs. */ 1953 if (uap->iovcnt & 1) 1954 return (EINVAL); 1955 1956 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1957 if (error) 1958 return (error); 1959 error = kern_jail_set(td, auio, uap->flags); 1960 free(auio, M_IOV); 1961 return (error); 1962} 1963 1964int 1965freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1966{ 1967 struct iovec32 iov32; 1968 struct uio *auio; 1969 int error, i; 1970 1971 /* Check that we have an even number of iovecs. */ 1972 if (uap->iovcnt & 1) 1973 return (EINVAL); 1974 1975 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1976 if (error) 1977 return (error); 1978 error = kern_jail_get(td, auio, uap->flags); 1979 if (error == 0) 1980 for (i = 0; i < uap->iovcnt; i++) { 1981 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1982 CP(auio->uio_iov[i], iov32, iov_len); 1983 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1984 if (error != 0) 1985 break; 1986 } 1987 free(auio, M_IOV); 1988 return (error); 1989} 1990 1991int 1992freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1993{ 1994 struct sigaction32 s32; 1995 struct sigaction sa, osa, *sap; 1996 int error; 1997 1998 if (uap->act) { 1999 error = copyin(uap->act, &s32, sizeof(s32)); 2000 if (error) 2001 return (error); 2002 sa.sa_handler = PTRIN(s32.sa_u); 2003 CP(s32, sa, sa_flags); 2004 CP(s32, sa, sa_mask); 2005 sap = &sa; 2006 } else 2007 sap = NULL; 2008 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2009 if (error == 0 && uap->oact != NULL) { 2010 s32.sa_u = PTROUT(osa.sa_handler); 2011 CP(osa, s32, sa_flags); 2012 CP(osa, s32, sa_mask); 2013 error = copyout(&s32, uap->oact, sizeof(s32)); 2014 } 2015 return (error); 2016} 2017 2018#ifdef COMPAT_FREEBSD4 2019int 2020freebsd4_freebsd32_sigaction(struct thread *td, 2021 struct freebsd4_freebsd32_sigaction_args *uap) 2022{ 2023 struct sigaction32 s32; 2024 struct sigaction sa, osa, *sap; 2025 int error; 2026 2027 if (uap->act) { 2028 error = copyin(uap->act, &s32, sizeof(s32)); 2029 if (error) 2030 return (error); 2031 sa.sa_handler = PTRIN(s32.sa_u); 2032 CP(s32, sa, sa_flags); 2033 CP(s32, sa, sa_mask); 2034 sap = &sa; 2035 } else 2036 sap = NULL; 2037 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2038 if (error == 0 && uap->oact != NULL) { 2039 s32.sa_u = PTROUT(osa.sa_handler); 2040 CP(osa, s32, sa_flags); 2041 CP(osa, s32, sa_mask); 2042 error = copyout(&s32, uap->oact, sizeof(s32)); 2043 } 2044 return (error); 2045} 2046#endif 2047 2048#ifdef COMPAT_43 2049struct osigaction32 { 2050 u_int32_t sa_u; 2051 osigset_t sa_mask; 2052 int sa_flags; 2053}; 2054 2055#define ONSIG 32 2056 2057int 2058ofreebsd32_sigaction(struct thread *td, 2059 struct ofreebsd32_sigaction_args *uap) 2060{ 2061 struct osigaction32 s32; 2062 struct sigaction sa, osa, *sap; 2063 int error; 2064 2065 if (uap->signum <= 0 || uap->signum >= ONSIG) 2066 return (EINVAL); 2067 2068 if (uap->nsa) { 2069 error = copyin(uap->nsa, &s32, sizeof(s32)); 2070 if (error) 2071 return (error); 2072 sa.sa_handler = PTRIN(s32.sa_u); 2073 CP(s32, sa, sa_flags); 2074 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2075 sap = &sa; 2076 } else 2077 sap = NULL; 2078 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2079 if (error == 0 && uap->osa != NULL) { 2080 s32.sa_u = PTROUT(osa.sa_handler); 2081 CP(osa, s32, sa_flags); 2082 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2083 error = copyout(&s32, uap->osa, sizeof(s32)); 2084 } 2085 return (error); 2086} 2087 2088int 2089ofreebsd32_sigprocmask(struct thread *td, 2090 struct ofreebsd32_sigprocmask_args *uap) 2091{ 2092 sigset_t set, oset; 2093 int error; 2094 2095 OSIG2SIG(uap->mask, set); 2096 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2097 SIG2OSIG(oset, td->td_retval[0]); 2098 return (error); 2099} 2100 2101int 2102ofreebsd32_sigpending(struct thread *td, 2103 struct ofreebsd32_sigpending_args *uap) 2104{ 2105 struct proc *p = td->td_proc; 2106 sigset_t siglist; 2107 2108 PROC_LOCK(p); 2109 siglist = p->p_siglist; 2110 SIGSETOR(siglist, td->td_siglist); 2111 PROC_UNLOCK(p); 2112 SIG2OSIG(siglist, td->td_retval[0]); 2113 return (0); 2114} 2115 2116struct sigvec32 { 2117 u_int32_t sv_handler; 2118 int sv_mask; 2119 int sv_flags; 2120}; 2121 2122int 2123ofreebsd32_sigvec(struct thread *td, 2124 struct ofreebsd32_sigvec_args *uap) 2125{ 2126 struct sigvec32 vec; 2127 struct sigaction sa, osa, *sap; 2128 int error; 2129 2130 if (uap->signum <= 0 || uap->signum >= ONSIG) 2131 return (EINVAL); 2132 2133 if (uap->nsv) { 2134 error = copyin(uap->nsv, &vec, sizeof(vec)); 2135 if (error) 2136 return (error); 2137 sa.sa_handler = PTRIN(vec.sv_handler); 2138 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2139 sa.sa_flags = vec.sv_flags; 2140 sa.sa_flags ^= SA_RESTART; 2141 sap = &sa; 2142 } else 2143 sap = NULL; 2144 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2145 if (error == 0 && uap->osv != NULL) { 2146 vec.sv_handler = PTROUT(osa.sa_handler); 2147 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2148 vec.sv_flags = osa.sa_flags; 2149 vec.sv_flags &= ~SA_NOCLDWAIT; 2150 vec.sv_flags ^= SA_RESTART; 2151 error = copyout(&vec, uap->osv, sizeof(vec)); 2152 } 2153 return (error); 2154} 2155 2156int 2157ofreebsd32_sigblock(struct thread *td, 2158 struct ofreebsd32_sigblock_args *uap) 2159{ 2160 sigset_t set, oset; 2161 2162 OSIG2SIG(uap->mask, set); 2163 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2164 SIG2OSIG(oset, td->td_retval[0]); 2165 return (0); 2166} 2167 2168int 2169ofreebsd32_sigsetmask(struct thread *td, 2170 struct ofreebsd32_sigsetmask_args *uap) 2171{ 2172 sigset_t set, oset; 2173 2174 OSIG2SIG(uap->mask, set); 2175 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2176 SIG2OSIG(oset, td->td_retval[0]); 2177 return (0); 2178} 2179 2180int 2181ofreebsd32_sigsuspend(struct thread *td, 2182 struct ofreebsd32_sigsuspend_args *uap) 2183{ 2184 sigset_t mask; 2185 2186 OSIG2SIG(uap->mask, mask); 2187 return (kern_sigsuspend(td, mask)); 2188} 2189 2190struct sigstack32 { 2191 u_int32_t ss_sp; 2192 int ss_onstack; 2193}; 2194 2195int 2196ofreebsd32_sigstack(struct thread *td, 2197 struct ofreebsd32_sigstack_args *uap) 2198{ 2199 struct sigstack32 s32; 2200 struct sigstack nss, oss; 2201 int error = 0, unss; 2202 2203 if (uap->nss != NULL) { 2204 error = copyin(uap->nss, &s32, sizeof(s32)); 2205 if (error) 2206 return (error); 2207 nss.ss_sp = PTRIN(s32.ss_sp); 2208 CP(s32, nss, ss_onstack); 2209 unss = 1; 2210 } else { 2211 unss = 0; 2212 } 2213 oss.ss_sp = td->td_sigstk.ss_sp; 2214 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2215 if (unss) { 2216 td->td_sigstk.ss_sp = nss.ss_sp; 2217 td->td_sigstk.ss_size = 0; 2218 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2219 td->td_pflags |= TDP_ALTSTACK; 2220 } 2221 if (uap->oss != NULL) { 2222 s32.ss_sp = PTROUT(oss.ss_sp); 2223 CP(oss, s32, ss_onstack); 2224 error = copyout(&s32, uap->oss, sizeof(s32)); 2225 } 2226 return (error); 2227} 2228#endif 2229 2230int 2231freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2232{ 2233 struct timespec32 rmt32, rqt32; 2234 struct timespec rmt, rqt; 2235 int error; 2236 2237 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2238 if (error) 2239 return (error); 2240 2241 CP(rqt32, rqt, tv_sec); 2242 CP(rqt32, rqt, tv_nsec); 2243 2244 if (uap->rmtp && 2245 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2246 return (EFAULT); 2247 error = kern_nanosleep(td, &rqt, &rmt); 2248 if (error && uap->rmtp) { 2249 int error2; 2250 2251 CP(rmt, rmt32, tv_sec); 2252 CP(rmt, rmt32, tv_nsec); 2253 2254 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2255 if (error2) 2256 error = error2; 2257 } 2258 return (error); 2259} 2260 2261int 2262freebsd32_clock_gettime(struct thread *td, 2263 struct freebsd32_clock_gettime_args *uap) 2264{ 2265 struct timespec ats; 2266 struct timespec32 ats32; 2267 int error; 2268 2269 error = kern_clock_gettime(td, uap->clock_id, &ats); 2270 if (error == 0) { 2271 CP(ats, ats32, tv_sec); 2272 CP(ats, ats32, tv_nsec); 2273 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2274 } 2275 return (error); 2276} 2277 2278int 2279freebsd32_clock_settime(struct thread *td, 2280 struct freebsd32_clock_settime_args *uap) 2281{ 2282 struct timespec ats; 2283 struct timespec32 ats32; 2284 int error; 2285 2286 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2287 if (error) 2288 return (error); 2289 CP(ats32, ats, tv_sec); 2290 CP(ats32, ats, tv_nsec); 2291 2292 return (kern_clock_settime(td, uap->clock_id, &ats)); 2293} 2294 2295int 2296freebsd32_clock_getres(struct thread *td, 2297 struct freebsd32_clock_getres_args *uap) 2298{ 2299 struct timespec ts; 2300 struct timespec32 ts32; 2301 int error; 2302 2303 if (uap->tp == NULL) 2304 return (0); 2305 error = kern_clock_getres(td, uap->clock_id, &ts); 2306 if (error == 0) { 2307 CP(ts, ts32, tv_sec); 2308 CP(ts, ts32, tv_nsec); 2309 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2310 } 2311 return (error); 2312} 2313 2314int freebsd32_ktimer_create(struct thread *td, 2315 struct freebsd32_ktimer_create_args *uap) 2316{ 2317 struct sigevent32 ev32; 2318 struct sigevent ev, *evp; 2319 int error, id; 2320 2321 if (uap->evp == NULL) { 2322 evp = NULL; 2323 } else { 2324 evp = &ev; 2325 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2326 if (error != 0) 2327 return (error); 2328 error = convert_sigevent32(&ev32, &ev); 2329 if (error != 0) 2330 return (error); 2331 } 2332 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2333 if (error == 0) { 2334 error = copyout(&id, uap->timerid, sizeof(int)); 2335 if (error != 0) 2336 kern_ktimer_delete(td, id); 2337 } 2338 return (error); 2339} 2340 2341int 2342freebsd32_ktimer_settime(struct thread *td, 2343 struct freebsd32_ktimer_settime_args *uap) 2344{ 2345 struct itimerspec32 val32, oval32; 2346 struct itimerspec val, oval, *ovalp; 2347 int error; 2348 2349 error = copyin(uap->value, &val32, sizeof(val32)); 2350 if (error != 0) 2351 return (error); 2352 ITS_CP(val32, val); 2353 ovalp = uap->ovalue != NULL ? &oval : NULL; 2354 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2355 if (error == 0 && uap->ovalue != NULL) { 2356 ITS_CP(oval, oval32); 2357 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2358 } 2359 return (error); 2360} 2361 2362int 2363freebsd32_ktimer_gettime(struct thread *td, 2364 struct freebsd32_ktimer_gettime_args *uap) 2365{ 2366 struct itimerspec32 val32; 2367 struct itimerspec val; 2368 int error; 2369 2370 error = kern_ktimer_gettime(td, uap->timerid, &val); 2371 if (error == 0) { 2372 ITS_CP(val, val32); 2373 error = copyout(&val32, uap->value, sizeof(val32)); 2374 } 2375 return (error); 2376} 2377 2378int 2379freebsd32_clock_getcpuclockid2(struct thread *td, 2380 struct freebsd32_clock_getcpuclockid2_args *uap) 2381{ 2382 clockid_t clk_id; 2383 int error; 2384 2385 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2386 uap->which, &clk_id); 2387 if (error == 0) 2388 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2389 return (error); 2390} 2391 2392int 2393freebsd32_thr_new(struct thread *td, 2394 struct freebsd32_thr_new_args *uap) 2395{ 2396 struct thr_param32 param32; 2397 struct thr_param param; 2398 int error; 2399 2400 if (uap->param_size < 0 || 2401 uap->param_size > sizeof(struct thr_param32)) 2402 return (EINVAL); 2403 bzero(¶m, sizeof(struct thr_param)); 2404 bzero(¶m32, sizeof(struct thr_param32)); 2405 error = copyin(uap->param, ¶m32, uap->param_size); 2406 if (error != 0) 2407 return (error); 2408 param.start_func = PTRIN(param32.start_func); 2409 param.arg = PTRIN(param32.arg); 2410 param.stack_base = PTRIN(param32.stack_base); 2411 param.stack_size = param32.stack_size; 2412 param.tls_base = PTRIN(param32.tls_base); 2413 param.tls_size = param32.tls_size; 2414 param.child_tid = PTRIN(param32.child_tid); 2415 param.parent_tid = PTRIN(param32.parent_tid); 2416 param.flags = param32.flags; 2417 param.rtp = PTRIN(param32.rtp); 2418 param.spare[0] = PTRIN(param32.spare[0]); 2419 param.spare[1] = PTRIN(param32.spare[1]); 2420 param.spare[2] = PTRIN(param32.spare[2]); 2421 2422 return (kern_thr_new(td, ¶m)); 2423} 2424 2425int 2426freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2427{ 2428 struct timespec32 ts32; 2429 struct timespec ts, *tsp; 2430 int error; 2431 2432 error = 0; 2433 tsp = NULL; 2434 if (uap->timeout != NULL) { 2435 error = copyin((const void *)uap->timeout, (void *)&ts32, 2436 sizeof(struct timespec32)); 2437 if (error != 0) 2438 return (error); 2439 ts.tv_sec = ts32.tv_sec; 2440 ts.tv_nsec = ts32.tv_nsec; 2441 tsp = &ts; 2442 } 2443 return (kern_thr_suspend(td, tsp)); 2444} 2445 2446void 2447siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2448{ 2449 bzero(dst, sizeof(*dst)); 2450 dst->si_signo = src->si_signo; 2451 dst->si_errno = src->si_errno; 2452 dst->si_code = src->si_code; 2453 dst->si_pid = src->si_pid; 2454 dst->si_uid = src->si_uid; 2455 dst->si_status = src->si_status; 2456 dst->si_addr = (uintptr_t)src->si_addr; 2457 dst->si_value.sival_int = src->si_value.sival_int; 2458 dst->si_timerid = src->si_timerid; 2459 dst->si_overrun = src->si_overrun; 2460} 2461 2462int 2463freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2464{ 2465 struct timespec32 ts32; 2466 struct timespec ts; 2467 struct timespec *timeout; 2468 sigset_t set; 2469 ksiginfo_t ksi; 2470 struct siginfo32 si32; 2471 int error; 2472 2473 if (uap->timeout) { 2474 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2475 if (error) 2476 return (error); 2477 ts.tv_sec = ts32.tv_sec; 2478 ts.tv_nsec = ts32.tv_nsec; 2479 timeout = &ts; 2480 } else 2481 timeout = NULL; 2482 2483 error = copyin(uap->set, &set, sizeof(set)); 2484 if (error) 2485 return (error); 2486 2487 error = kern_sigtimedwait(td, set, &ksi, timeout); 2488 if (error) 2489 return (error); 2490 2491 if (uap->info) { 2492 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2493 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2494 } 2495 2496 if (error == 0) 2497 td->td_retval[0] = ksi.ksi_signo; 2498 return (error); 2499} 2500 2501/* 2502 * MPSAFE 2503 */ 2504int 2505freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2506{ 2507 ksiginfo_t ksi; 2508 struct siginfo32 si32; 2509 sigset_t set; 2510 int error; 2511 2512 error = copyin(uap->set, &set, sizeof(set)); 2513 if (error) 2514 return (error); 2515 2516 error = kern_sigtimedwait(td, set, &ksi, NULL); 2517 if (error) 2518 return (error); 2519 2520 if (uap->info) { 2521 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2522 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2523 } 2524 if (error == 0) 2525 td->td_retval[0] = ksi.ksi_signo; 2526 return (error); 2527} 2528 2529int 2530freebsd32_cpuset_setid(struct thread *td, 2531 struct freebsd32_cpuset_setid_args *uap) 2532{ 2533 struct cpuset_setid_args ap; 2534 2535 ap.which = uap->which; 2536 ap.id = PAIR32TO64(id_t,uap->id); 2537 ap.setid = uap->setid; 2538 2539 return (sys_cpuset_setid(td, &ap)); 2540} 2541 2542int 2543freebsd32_cpuset_getid(struct thread *td, 2544 struct freebsd32_cpuset_getid_args *uap) 2545{ 2546 struct cpuset_getid_args ap; 2547 2548 ap.level = uap->level; 2549 ap.which = uap->which; 2550 ap.id = PAIR32TO64(id_t,uap->id); 2551 ap.setid = uap->setid; 2552 2553 return (sys_cpuset_getid(td, &ap)); 2554} 2555 2556int 2557freebsd32_cpuset_getaffinity(struct thread *td, 2558 struct freebsd32_cpuset_getaffinity_args *uap) 2559{ 2560 struct cpuset_getaffinity_args ap; 2561 2562 ap.level = uap->level; 2563 ap.which = uap->which; 2564 ap.id = PAIR32TO64(id_t,uap->id); 2565 ap.cpusetsize = uap->cpusetsize; 2566 ap.mask = uap->mask; 2567 2568 return (sys_cpuset_getaffinity(td, &ap)); 2569} 2570 2571int 2572freebsd32_cpuset_setaffinity(struct thread *td, 2573 struct freebsd32_cpuset_setaffinity_args *uap) 2574{ 2575 struct cpuset_setaffinity_args ap; 2576 2577 ap.level = uap->level; 2578 ap.which = uap->which; 2579 ap.id = PAIR32TO64(id_t,uap->id); 2580 ap.cpusetsize = uap->cpusetsize; 2581 ap.mask = uap->mask; 2582 2583 return (sys_cpuset_setaffinity(td, &ap)); 2584} 2585 2586int 2587freebsd32_nmount(struct thread *td, 2588 struct freebsd32_nmount_args /* { 2589 struct iovec *iovp; 2590 unsigned int iovcnt; 2591 int flags; 2592 } */ *uap) 2593{ 2594 struct uio *auio; 2595 uint64_t flags; 2596 int error; 2597 2598 /* 2599 * Mount flags are now 64-bits. On 32-bit archtectures only 2600 * 32-bits are passed in, but from here on everything handles 2601 * 64-bit flags correctly. 2602 */ 2603 flags = uap->flags; 2604 2605 AUDIT_ARG_FFLAGS(flags); 2606 2607 /* 2608 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2609 * userspace to set this flag, but we must filter it out if we want 2610 * MNT_UPDATE on the root file system to work. 2611 * MNT_ROOTFS should only be set by the kernel when mounting its 2612 * root file system. 2613 */ 2614 flags &= ~MNT_ROOTFS; 2615 2616 /* 2617 * check that we have an even number of iovec's 2618 * and that we have at least two options. 2619 */ 2620 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2621 return (EINVAL); 2622 2623 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2624 if (error) 2625 return (error); 2626 error = vfs_donmount(td, flags, auio); 2627 2628 free(auio, M_IOV); 2629 return error; 2630} 2631 2632#if 0 2633int 2634freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2635{ 2636 struct yyy32 *p32, s32; 2637 struct yyy *p = NULL, s; 2638 struct xxx_arg ap; 2639 int error; 2640 2641 if (uap->zzz) { 2642 error = copyin(uap->zzz, &s32, sizeof(s32)); 2643 if (error) 2644 return (error); 2645 /* translate in */ 2646 p = &s; 2647 } 2648 error = kern_xxx(td, p); 2649 if (error) 2650 return (error); 2651 if (uap->zzz) { 2652 /* translate out */ 2653 error = copyout(&s32, p32, sizeof(s32)); 2654 } 2655 return (error); 2656} 2657#endif 2658 2659int 2660syscall32_register(int *offset, struct sysent *new_sysent, 2661 struct sysent *old_sysent, int flags) 2662{ 2663 2664 if ((flags & ~SY_THR_STATIC) != 0) 2665 return (EINVAL); 2666 2667 if (*offset == NO_SYSCALL) { 2668 int i; 2669 2670 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2671 if (freebsd32_sysent[i].sy_call == 2672 (sy_call_t *)lkmnosys) 2673 break; 2674 if (i == SYS_MAXSYSCALL) 2675 return (ENFILE); 2676 *offset = i; 2677 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2678 return (EINVAL); 2679 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2680 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2681 return (EEXIST); 2682 2683 *old_sysent = freebsd32_sysent[*offset]; 2684 freebsd32_sysent[*offset] = *new_sysent; 2685 atomic_store_rel_32(&freebsd32_sysent[*offset].sy_thrcnt, flags); 2686 return (0); 2687} 2688 2689int 2690syscall32_deregister(int *offset, struct sysent *old_sysent) 2691{ 2692 2693 if (*offset == 0) 2694 return (0); 2695 2696 freebsd32_sysent[*offset] = *old_sysent; 2697 return (0); 2698} 2699 2700int 2701syscall32_module_handler(struct module *mod, int what, void *arg) 2702{ 2703 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2704 modspecific_t ms; 2705 int error; 2706 2707 switch (what) { 2708 case MOD_LOAD: 2709 error = syscall32_register(data->offset, data->new_sysent, 2710 &data->old_sysent, SY_THR_STATIC_KLD); 2711 if (error) { 2712 /* Leave a mark so we know to safely unload below. */ 2713 data->offset = NULL; 2714 return error; 2715 } 2716 ms.intval = *data->offset; 2717 MOD_XLOCK; 2718 module_setspecific(mod, &ms); 2719 MOD_XUNLOCK; 2720 if (data->chainevh) 2721 error = data->chainevh(mod, what, data->chainarg); 2722 return (error); 2723 case MOD_UNLOAD: 2724 /* 2725 * MOD_LOAD failed, so just return without calling the 2726 * chained handler since we didn't pass along the MOD_LOAD 2727 * event. 2728 */ 2729 if (data->offset == NULL) 2730 return (0); 2731 if (data->chainevh) { 2732 error = data->chainevh(mod, what, data->chainarg); 2733 if (error) 2734 return (error); 2735 } 2736 error = syscall32_deregister(data->offset, &data->old_sysent); 2737 return (error); 2738 default: 2739 error = EOPNOTSUPP; 2740 if (data->chainevh) 2741 error = data->chainevh(mod, what, data->chainarg); 2742 return (error); 2743 } 2744} 2745 2746int 2747syscall32_helper_register(struct syscall_helper_data *sd, int flags) 2748{ 2749 struct syscall_helper_data *sd1; 2750 int error; 2751 2752 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2753 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2754 &sd1->old_sysent, flags); 2755 if (error != 0) { 2756 syscall32_helper_unregister(sd); 2757 return (error); 2758 } 2759 sd1->registered = 1; 2760 } 2761 return (0); 2762} 2763 2764int 2765syscall32_helper_unregister(struct syscall_helper_data *sd) 2766{ 2767 struct syscall_helper_data *sd1; 2768 2769 for (sd1 = sd; sd1->registered != 0; sd1++) { 2770 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2771 sd1->registered = 0; 2772 } 2773 return (0); 2774} 2775 2776register_t * 2777freebsd32_copyout_strings(struct image_params *imgp) 2778{ 2779 int argc, envc, i; 2780 u_int32_t *vectp; 2781 char *stringp; 2782 uintptr_t destp; 2783 u_int32_t *stack_base; 2784 struct freebsd32_ps_strings *arginfo; 2785 char canary[sizeof(long) * 8]; 2786 int32_t pagesizes32[MAXPAGESIZES]; 2787 size_t execpath_len; 2788 int szsigcode; 2789 2790 /* 2791 * Calculate string base and vector table pointers. 2792 * Also deal with signal trampoline code for this exec type. 2793 */ 2794 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2795 execpath_len = strlen(imgp->execpath) + 1; 2796 else 2797 execpath_len = 0; 2798 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2799 sv_psstrings; 2800 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2801 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2802 else 2803 szsigcode = 0; 2804 destp = (uintptr_t)arginfo; 2805 2806 /* 2807 * install sigcode 2808 */ 2809 if (szsigcode != 0) { 2810 destp -= szsigcode; 2811 destp = rounddown2(destp, sizeof(uint32_t)); 2812 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2813 szsigcode); 2814 } 2815 2816 /* 2817 * Copy the image path for the rtld. 2818 */ 2819 if (execpath_len != 0) { 2820 destp -= execpath_len; 2821 imgp->execpathp = destp; 2822 copyout(imgp->execpath, (void *)destp, execpath_len); 2823 } 2824 2825 /* 2826 * Prepare the canary for SSP. 2827 */ 2828 arc4rand(canary, sizeof(canary), 0); 2829 destp -= sizeof(canary); 2830 imgp->canary = destp; 2831 copyout(canary, (void *)destp, sizeof(canary)); 2832 imgp->canarylen = sizeof(canary); 2833 2834 /* 2835 * Prepare the pagesizes array. 2836 */ 2837 for (i = 0; i < MAXPAGESIZES; i++) 2838 pagesizes32[i] = (uint32_t)pagesizes[i]; 2839 destp -= sizeof(pagesizes32); 2840 destp = rounddown2(destp, sizeof(uint32_t)); 2841 imgp->pagesizes = destp; 2842 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2843 imgp->pagesizeslen = sizeof(pagesizes32); 2844 2845 destp -= ARG_MAX - imgp->args->stringspace; 2846 destp = rounddown2(destp, sizeof(uint32_t)); 2847 2848 /* 2849 * If we have a valid auxargs ptr, prepare some room 2850 * on the stack. 2851 */ 2852 if (imgp->auxargs) { 2853 /* 2854 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2855 * lower compatibility. 2856 */ 2857 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2858 : (AT_COUNT * 2); 2859 /* 2860 * The '+ 2' is for the null pointers at the end of each of 2861 * the arg and env vector sets,and imgp->auxarg_size is room 2862 * for argument of Runtime loader. 2863 */ 2864 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2865 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2866 sizeof(u_int32_t)); 2867 } else { 2868 /* 2869 * The '+ 2' is for the null pointers at the end of each of 2870 * the arg and env vector sets 2871 */ 2872 vectp = (u_int32_t *)(destp - (imgp->args->argc + 2873 imgp->args->envc + 2) * sizeof(u_int32_t)); 2874 } 2875 2876 /* 2877 * vectp also becomes our initial stack base 2878 */ 2879 stack_base = vectp; 2880 2881 stringp = imgp->args->begin_argv; 2882 argc = imgp->args->argc; 2883 envc = imgp->args->envc; 2884 /* 2885 * Copy out strings - arguments and environment. 2886 */ 2887 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2888 2889 /* 2890 * Fill in "ps_strings" struct for ps, w, etc. 2891 */ 2892 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2893 suword32(&arginfo->ps_nargvstr, argc); 2894 2895 /* 2896 * Fill in argument portion of vector table. 2897 */ 2898 for (; argc > 0; --argc) { 2899 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2900 while (*stringp++ != 0) 2901 destp++; 2902 destp++; 2903 } 2904 2905 /* a null vector table pointer separates the argp's from the envp's */ 2906 suword32(vectp++, 0); 2907 2908 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2909 suword32(&arginfo->ps_nenvstr, envc); 2910 2911 /* 2912 * Fill in environment portion of vector table. 2913 */ 2914 for (; envc > 0; --envc) { 2915 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2916 while (*stringp++ != 0) 2917 destp++; 2918 destp++; 2919 } 2920 2921 /* end of vector table is a null pointer */ 2922 suword32(vectp, 0); 2923 2924 return ((register_t *)stack_base); 2925} 2926 2927int 2928freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2929{ 2930 struct kld_file_stat stat; 2931 struct kld32_file_stat stat32; 2932 int error, version; 2933 2934 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2935 != 0) 2936 return (error); 2937 if (version != sizeof(struct kld32_file_stat_1) && 2938 version != sizeof(struct kld32_file_stat)) 2939 return (EINVAL); 2940 2941 error = kern_kldstat(td, uap->fileid, &stat); 2942 if (error != 0) 2943 return (error); 2944 2945 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name)); 2946 CP(stat, stat32, refs); 2947 CP(stat, stat32, id); 2948 PTROUT_CP(stat, stat32, address); 2949 CP(stat, stat32, size); 2950 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname)); 2951 return (copyout(&stat32, uap->stat, version)); 2952} 2953 2954int 2955freebsd32_posix_fallocate(struct thread *td, 2956 struct freebsd32_posix_fallocate_args *uap) 2957{ 2958 2959 td->td_retval[0] = kern_posix_fallocate(td, uap->fd, 2960 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 2961 return (0); 2962} 2963 2964int 2965freebsd32_posix_fadvise(struct thread *td, 2966 struct freebsd32_posix_fadvise_args *uap) 2967{ 2968 2969 td->td_retval[0] = kern_posix_fadvise(td, uap->fd, 2970 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len), 2971 uap->advice); 2972 return (0); 2973} 2974 2975int 2976convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 2977{ 2978 2979 CP(*sig32, *sig, sigev_notify); 2980 switch (sig->sigev_notify) { 2981 case SIGEV_NONE: 2982 break; 2983 case SIGEV_THREAD_ID: 2984 CP(*sig32, *sig, sigev_notify_thread_id); 2985 /* FALLTHROUGH */ 2986 case SIGEV_SIGNAL: 2987 CP(*sig32, *sig, sigev_signo); 2988 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 2989 break; 2990 case SIGEV_KEVENT: 2991 CP(*sig32, *sig, sigev_notify_kqueue); 2992 CP(*sig32, *sig, sigev_notify_kevent_flags); 2993 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 2994 break; 2995 default: 2996 return (EINVAL); 2997 } 2998 return (0); 2999} 3000 3001int 3002freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3003{ 3004 void *data; 3005 union { 3006 struct procctl_reaper_status rs; 3007 struct procctl_reaper_pids rp; 3008 struct procctl_reaper_kill rk; 3009 } x; 3010 union { 3011 struct procctl_reaper_pids32 rp; 3012 } x32; 3013 int error, error1, flags; 3014 3015 switch (uap->com) { 3016 case PROC_SPROTECT: 3017 case PROC_TRACE_CTL: 3018 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3019 if (error != 0) 3020 return (error); 3021 data = &flags; 3022 break; 3023 case PROC_REAP_ACQUIRE: 3024 case PROC_REAP_RELEASE: 3025 if (uap->data != NULL) 3026 return (EINVAL); 3027 data = NULL; 3028 break; 3029 case PROC_REAP_STATUS: 3030 data = &x.rs; 3031 break; 3032 case PROC_REAP_GETPIDS: 3033 error = copyin(uap->data, &x32.rp, sizeof(x32.rp)); 3034 if (error != 0) 3035 return (error); 3036 CP(x32.rp, x.rp, rp_count); 3037 PTRIN_CP(x32.rp, x.rp, rp_pids); 3038 data = &x.rp; 3039 break; 3040 case PROC_REAP_KILL: 3041 error = copyin(uap->data, &x.rk, sizeof(x.rk)); 3042 if (error != 0) 3043 return (error); 3044 data = &x.rk; 3045 break; 3046 case PROC_TRACE_STATUS: 3047 data = &flags; 3048 break; 3049 default: 3050 return (EINVAL); 3051 } 3052 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3053 uap->com, data); 3054 switch (uap->com) { 3055 case PROC_REAP_STATUS: 3056 if (error == 0) 3057 error = copyout(&x.rs, uap->data, sizeof(x.rs)); 3058 break; 3059 case PROC_REAP_KILL: 3060 error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); 3061 if (error == 0) 3062 error = error1; 3063 break; 3064 case PROC_TRACE_STATUS: 3065 if (error == 0) 3066 error = copyout(&flags, uap->data, sizeof(flags)); 3067 break; 3068 } 3069 return (error); 3070} 3071 3072int 3073freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 3074{ 3075 long tmp; 3076 3077 switch (uap->cmd) { 3078 /* 3079 * Do unsigned conversion for arg when operation 3080 * interprets it as flags or pointer. 3081 */ 3082 case F_SETLK_REMOTE: 3083 case F_SETLKW: 3084 case F_SETLK: 3085 case F_GETLK: 3086 case F_SETFD: 3087 case F_SETFL: 3088 case F_OGETLK: 3089 case F_OSETLK: 3090 case F_OSETLKW: 3091 tmp = (unsigned int)(uap->arg); 3092 break; 3093 default: 3094 tmp = uap->arg; 3095 break; 3096 } 3097 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 3098} 3099 3100int 3101freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap) 3102{ 3103 struct timespec32 ts32; 3104 struct timespec ts, *tsp; 3105 sigset_t set, *ssp; 3106 int error; 3107 3108 if (uap->ts != NULL) { 3109 error = copyin(uap->ts, &ts32, sizeof(ts32)); 3110 if (error != 0) 3111 return (error); 3112 CP(ts32, ts, tv_sec); 3113 CP(ts32, ts, tv_nsec); 3114 tsp = &ts; 3115 } else 3116 tsp = NULL; 3117 if (uap->set != NULL) { 3118 error = copyin(uap->set, &set, sizeof(set)); 3119 if (error != 0) 3120 return (error); 3121 ssp = &set; 3122 } else 3123 ssp = NULL; 3124 3125 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp)); 3126} 3127