Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/compat/freebsd32/freebsd32_misc.c
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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: releng/10.1/sys/compat/freebsd32/freebsd32_misc.c 272246 2014-09-28 11:08:32Z 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/capability.h> 39 #include <sys/clock.h> 40 #include <sys/exec.h> 41 #include <sys/fcntl.h> 42 #include <sys/filedesc.h> 43 #include <sys/imgact.h> 44 #include <sys/jail.h> 45 #include <sys/kernel.h> 46 #include <sys/limits.h> 47 #include <sys/linker.h> 48 #include <sys/lock.h> 49 #include <sys/malloc.h> 50 #include <sys/file.h> /* Must come after sys/malloc.h */ 51 #include <sys/imgact.h> 52 #include <sys/mbuf.h> 53 #include <sys/mman.h> 54 #include <sys/module.h> 55 #include <sys/mount.h> 56 #include <sys/mutex.h> 57 #include <sys/namei.h> 58 #include <sys/proc.h> 59 #include <sys/procctl.h> 60 #include <sys/reboot.h> 61 #include <sys/resource.h> 62 #include <sys/resourcevar.h> 63 #include <sys/selinfo.h> 64 #include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 65 #include <sys/pipe.h> /* Must come after sys/selinfo.h */ 66 #include <sys/signal.h> 67 #include <sys/signalvar.h> 68 #include <sys/socket.h> 69 #include <sys/socketvar.h> 70 #include <sys/stat.h> 71 #include <sys/syscall.h> 72 #include <sys/syscallsubr.h> 73 #include <sys/sysctl.h> 74 #include <sys/sysent.h> 75 #include <sys/sysproto.h> 76 #include <sys/systm.h> 77 #include <sys/thr.h> 78 #include <sys/unistd.h> 79 #include <sys/ucontext.h> 80 #include <sys/vnode.h> 81 #include <sys/wait.h> 82 #include <sys/ipc.h> 83 #include <sys/msg.h> 84 #include <sys/sem.h> 85 #include <sys/shm.h> 86 87 #ifdef INET 88 #include <netinet/in.h> 89 #endif 90 91 #include <vm/vm.h> 92 #include <vm/vm_param.h> 93 #include <vm/pmap.h> 94 #include <vm/vm_map.h> 95 #include <vm/vm_object.h> 96 #include <vm/vm_extern.h> 97 98 #include <machine/cpu.h> 99 #include <machine/elf.h> 100 101 #include <security/audit/audit.h> 102 103 #include <compat/freebsd32/freebsd32_util.h> 104 #include <compat/freebsd32/freebsd32.h> 105 #include <compat/freebsd32/freebsd32_ipc.h> 106 #include <compat/freebsd32/freebsd32_misc.h> 107 #include <compat/freebsd32/freebsd32_signal.h> 108 #include <compat/freebsd32/freebsd32_proto.h> 109 110 FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD"); 111 112 #ifndef __mips__ 113 CTASSERT(sizeof(struct timeval32) == 8); 114 CTASSERT(sizeof(struct timespec32) == 8); 115 CTASSERT(sizeof(struct itimerval32) == 16); 116 #endif 117 CTASSERT(sizeof(struct statfs32) == 256); 118 #ifndef __mips__ 119 CTASSERT(sizeof(struct rusage32) == 72); 120 #endif 121 CTASSERT(sizeof(struct sigaltstack32) == 12); 122 CTASSERT(sizeof(struct kevent32) == 20); 123 CTASSERT(sizeof(struct iovec32) == 8); 124 CTASSERT(sizeof(struct msghdr32) == 28); 125 #ifndef __mips__ 126 CTASSERT(sizeof(struct stat32) == 96); 127 #endif 128 CTASSERT(sizeof(struct sigaction32) == 24); 129 130 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 131 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 132 133 void 134 freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 135 { 136 137 TV_CP(*s, *s32, ru_utime); 138 TV_CP(*s, *s32, ru_stime); 139 CP(*s, *s32, ru_maxrss); 140 CP(*s, *s32, ru_ixrss); 141 CP(*s, *s32, ru_idrss); 142 CP(*s, *s32, ru_isrss); 143 CP(*s, *s32, ru_minflt); 144 CP(*s, *s32, ru_majflt); 145 CP(*s, *s32, ru_nswap); 146 CP(*s, *s32, ru_inblock); 147 CP(*s, *s32, ru_oublock); 148 CP(*s, *s32, ru_msgsnd); 149 CP(*s, *s32, ru_msgrcv); 150 CP(*s, *s32, ru_nsignals); 151 CP(*s, *s32, ru_nvcsw); 152 CP(*s, *s32, ru_nivcsw); 153 } 154 155 int 156 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 157 { 158 int error, status; 159 struct rusage32 ru32; 160 struct rusage ru, *rup; 161 162 if (uap->rusage != NULL) 163 rup = &ru; 164 else 165 rup = NULL; 166 error = kern_wait(td, uap->pid, &status, uap->options, rup); 167 if (error) 168 return (error); 169 if (uap->status != NULL) 170 error = copyout(&status, uap->status, sizeof(status)); 171 if (uap->rusage != NULL && error == 0) { 172 freebsd32_rusage_out(&ru, &ru32); 173 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 174 } 175 return (error); 176 } 177 178 int 179 freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap) 180 { 181 struct wrusage32 wru32; 182 struct __wrusage wru, *wrup; 183 struct siginfo32 si32; 184 struct __siginfo si, *sip; 185 int error, status; 186 187 if (uap->wrusage != NULL) 188 wrup = &wru; 189 else 190 wrup = NULL; 191 if (uap->info != NULL) { 192 sip = &si; 193 bzero(sip, sizeof(*sip)); 194 } else 195 sip = NULL; 196 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id), 197 &status, uap->options, wrup, sip); 198 if (error != 0) 199 return (error); 200 if (uap->status != NULL) 201 error = copyout(&status, uap->status, sizeof(status)); 202 if (uap->wrusage != NULL && error == 0) { 203 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self); 204 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children); 205 error = copyout(&wru32, uap->wrusage, sizeof(wru32)); 206 } 207 if (uap->info != NULL && error == 0) { 208 siginfo_to_siginfo32 (&si, &si32); 209 error = copyout(&si32, uap->info, sizeof(si32)); 210 } 211 return (error); 212 } 213 214 #ifdef COMPAT_FREEBSD4 215 static void 216 copy_statfs(struct statfs *in, struct statfs32 *out) 217 { 218 219 statfs_scale_blocks(in, INT32_MAX); 220 bzero(out, sizeof(*out)); 221 CP(*in, *out, f_bsize); 222 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 223 CP(*in, *out, f_blocks); 224 CP(*in, *out, f_bfree); 225 CP(*in, *out, f_bavail); 226 out->f_files = MIN(in->f_files, INT32_MAX); 227 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 228 CP(*in, *out, f_fsid); 229 CP(*in, *out, f_owner); 230 CP(*in, *out, f_type); 231 CP(*in, *out, f_flags); 232 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 233 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 234 strlcpy(out->f_fstypename, 235 in->f_fstypename, MFSNAMELEN); 236 strlcpy(out->f_mntonname, 237 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 238 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 239 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 240 strlcpy(out->f_mntfromname, 241 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 242 } 243 #endif 244 245 #ifdef COMPAT_FREEBSD4 246 int 247 freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 248 { 249 struct statfs *buf, *sp; 250 struct statfs32 stat32; 251 size_t count, size; 252 int error; 253 254 count = uap->bufsize / sizeof(struct statfs32); 255 size = count * sizeof(struct statfs); 256 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags); 257 if (size > 0) { 258 count = td->td_retval[0]; 259 sp = buf; 260 while (count > 0 && error == 0) { 261 copy_statfs(sp, &stat32); 262 error = copyout(&stat32, uap->buf, sizeof(stat32)); 263 sp++; 264 uap->buf++; 265 count--; 266 } 267 free(buf, M_TEMP); 268 } 269 return (error); 270 } 271 #endif 272 273 int 274 freebsd32_sigaltstack(struct thread *td, 275 struct freebsd32_sigaltstack_args *uap) 276 { 277 struct sigaltstack32 s32; 278 struct sigaltstack ss, oss, *ssp; 279 int error; 280 281 if (uap->ss != NULL) { 282 error = copyin(uap->ss, &s32, sizeof(s32)); 283 if (error) 284 return (error); 285 PTRIN_CP(s32, ss, ss_sp); 286 CP(s32, ss, ss_size); 287 CP(s32, ss, ss_flags); 288 ssp = &ss; 289 } else 290 ssp = NULL; 291 error = kern_sigaltstack(td, ssp, &oss); 292 if (error == 0 && uap->oss != NULL) { 293 PTROUT_CP(oss, s32, ss_sp); 294 CP(oss, s32, ss_size); 295 CP(oss, s32, ss_flags); 296 error = copyout(&s32, uap->oss, sizeof(s32)); 297 } 298 return (error); 299 } 300 301 /* 302 * Custom version of exec_copyin_args() so that we can translate 303 * the pointers. 304 */ 305 int 306 freebsd32_exec_copyin_args(struct image_args *args, char *fname, 307 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 308 { 309 char *argp, *envp; 310 u_int32_t *p32, arg; 311 size_t length; 312 int error; 313 314 bzero(args, sizeof(*args)); 315 if (argv == NULL) 316 return (EFAULT); 317 318 /* 319 * Allocate demand-paged memory for the file name, argument, and 320 * environment strings. 321 */ 322 error = exec_alloc_args(args); 323 if (error != 0) 324 return (error); 325 326 /* 327 * Copy the file name. 328 */ 329 if (fname != NULL) { 330 args->fname = args->buf; 331 error = (segflg == UIO_SYSSPACE) ? 332 copystr(fname, args->fname, PATH_MAX, &length) : 333 copyinstr(fname, args->fname, PATH_MAX, &length); 334 if (error != 0) 335 goto err_exit; 336 } else 337 length = 0; 338 339 args->begin_argv = args->buf + length; 340 args->endp = args->begin_argv; 341 args->stringspace = ARG_MAX; 342 343 /* 344 * extract arguments first 345 */ 346 p32 = argv; 347 for (;;) { 348 error = copyin(p32++, &arg, sizeof(arg)); 349 if (error) 350 goto err_exit; 351 if (arg == 0) 352 break; 353 argp = PTRIN(arg); 354 error = copyinstr(argp, args->endp, args->stringspace, &length); 355 if (error) { 356 if (error == ENAMETOOLONG) 357 error = E2BIG; 358 goto err_exit; 359 } 360 args->stringspace -= length; 361 args->endp += length; 362 args->argc++; 363 } 364 365 args->begin_envv = args->endp; 366 367 /* 368 * extract environment strings 369 */ 370 if (envv) { 371 p32 = envv; 372 for (;;) { 373 error = copyin(p32++, &arg, sizeof(arg)); 374 if (error) 375 goto err_exit; 376 if (arg == 0) 377 break; 378 envp = PTRIN(arg); 379 error = copyinstr(envp, args->endp, args->stringspace, 380 &length); 381 if (error) { 382 if (error == ENAMETOOLONG) 383 error = E2BIG; 384 goto err_exit; 385 } 386 args->stringspace -= length; 387 args->endp += length; 388 args->envc++; 389 } 390 } 391 392 return (0); 393 394 err_exit: 395 exec_free_args(args); 396 return (error); 397 } 398 399 int 400 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 401 { 402 struct image_args eargs; 403 int error; 404 405 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 406 uap->argv, uap->envv); 407 if (error == 0) 408 error = kern_execve(td, &eargs, NULL); 409 return (error); 410 } 411 412 int 413 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 414 { 415 struct image_args eargs; 416 int error; 417 418 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 419 uap->argv, uap->envv); 420 if (error == 0) { 421 eargs.fd = uap->fd; 422 error = kern_execve(td, &eargs, NULL); 423 } 424 return (error); 425 } 426 427 #ifdef __ia64__ 428 static int 429 freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 430 int prot, int fd, off_t pos) 431 { 432 vm_map_t map; 433 vm_map_entry_t entry; 434 int rv; 435 436 map = &td->td_proc->p_vmspace->vm_map; 437 if (fd != -1) 438 prot |= VM_PROT_WRITE; 439 440 if (vm_map_lookup_entry(map, start, &entry)) { 441 if ((entry->protection & prot) != prot) { 442 rv = vm_map_protect(map, 443 trunc_page(start), 444 round_page(end), 445 entry->protection | prot, 446 FALSE); 447 if (rv != KERN_SUCCESS) 448 return (EINVAL); 449 } 450 } else { 451 vm_offset_t addr = trunc_page(start); 452 rv = vm_map_find(map, NULL, 0, &addr, PAGE_SIZE, 0, 453 VMFS_NO_SPACE, prot, VM_PROT_ALL, 0); 454 if (rv != KERN_SUCCESS) 455 return (EINVAL); 456 } 457 458 if (fd != -1) { 459 struct pread_args r; 460 r.fd = fd; 461 r.buf = (void *) start; 462 r.nbyte = end - start; 463 r.offset = pos; 464 return (sys_pread(td, &r)); 465 } else { 466 while (start < end) { 467 subyte((void *) start, 0); 468 start++; 469 } 470 return (0); 471 } 472 } 473 #endif 474 475 int 476 freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 477 { 478 struct mprotect_args ap; 479 480 ap.addr = PTRIN(uap->addr); 481 ap.len = uap->len; 482 ap.prot = uap->prot; 483 #if defined(__amd64__) || defined(__ia64__) 484 if (i386_read_exec && (ap.prot & PROT_READ) != 0) 485 ap.prot |= PROT_EXEC; 486 #endif 487 return (sys_mprotect(td, &ap)); 488 } 489 490 int 491 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 492 { 493 struct mmap_args ap; 494 vm_offset_t addr = (vm_offset_t) uap->addr; 495 vm_size_t len = uap->len; 496 int prot = uap->prot; 497 int flags = uap->flags; 498 int fd = uap->fd; 499 off_t pos = PAIR32TO64(off_t,uap->pos); 500 #ifdef __ia64__ 501 vm_size_t pageoff; 502 int error; 503 504 /* 505 * Attempt to handle page size hassles. 506 */ 507 pageoff = (pos & PAGE_MASK); 508 if (flags & MAP_FIXED) { 509 vm_offset_t start, end; 510 start = addr; 511 end = addr + len; 512 513 if (start != trunc_page(start)) { 514 error = freebsd32_mmap_partial(td, start, 515 round_page(start), prot, 516 fd, pos); 517 if (fd != -1) 518 pos += round_page(start) - start; 519 start = round_page(start); 520 } 521 if (end != round_page(end)) { 522 vm_offset_t t = trunc_page(end); 523 error = freebsd32_mmap_partial(td, t, end, 524 prot, fd, 525 pos + t - start); 526 end = trunc_page(end); 527 } 528 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 529 /* 530 * We can't map this region at all. The specified 531 * address doesn't have the same alignment as the file 532 * position. Fake the mapping by simply reading the 533 * entire region into memory. First we need to make 534 * sure the region exists. 535 */ 536 vm_map_t map; 537 struct pread_args r; 538 int rv; 539 540 prot |= VM_PROT_WRITE; 541 map = &td->td_proc->p_vmspace->vm_map; 542 rv = vm_map_remove(map, start, end); 543 if (rv != KERN_SUCCESS) 544 return (EINVAL); 545 rv = vm_map_find(map, NULL, 0, &start, end - start, 546 0, VMFS_NO_SPACE, prot, VM_PROT_ALL, 0); 547 if (rv != KERN_SUCCESS) 548 return (EINVAL); 549 r.fd = fd; 550 r.buf = (void *) start; 551 r.nbyte = end - start; 552 r.offset = pos; 553 error = sys_pread(td, &r); 554 if (error) 555 return (error); 556 557 td->td_retval[0] = addr; 558 return (0); 559 } 560 if (end == start) { 561 /* 562 * After dealing with the ragged ends, there 563 * might be none left. 564 */ 565 td->td_retval[0] = addr; 566 return (0); 567 } 568 addr = start; 569 len = end - start; 570 } 571 #endif 572 573 #if defined(__amd64__) || defined(__ia64__) 574 if (i386_read_exec && (prot & PROT_READ)) 575 prot |= PROT_EXEC; 576 #endif 577 578 ap.addr = (void *) addr; 579 ap.len = len; 580 ap.prot = prot; 581 ap.flags = flags; 582 ap.fd = fd; 583 ap.pos = pos; 584 585 return (sys_mmap(td, &ap)); 586 } 587 588 #ifdef COMPAT_FREEBSD6 589 int 590 freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 591 { 592 struct freebsd32_mmap_args ap; 593 594 ap.addr = uap->addr; 595 ap.len = uap->len; 596 ap.prot = uap->prot; 597 ap.flags = uap->flags; 598 ap.fd = uap->fd; 599 ap.pos1 = uap->pos1; 600 ap.pos2 = uap->pos2; 601 602 return (freebsd32_mmap(td, &ap)); 603 } 604 #endif 605 606 int 607 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 608 { 609 struct itimerval itv, oitv, *itvp; 610 struct itimerval32 i32; 611 int error; 612 613 if (uap->itv != NULL) { 614 error = copyin(uap->itv, &i32, sizeof(i32)); 615 if (error) 616 return (error); 617 TV_CP(i32, itv, it_interval); 618 TV_CP(i32, itv, it_value); 619 itvp = &itv; 620 } else 621 itvp = NULL; 622 error = kern_setitimer(td, uap->which, itvp, &oitv); 623 if (error || uap->oitv == NULL) 624 return (error); 625 TV_CP(oitv, i32, it_interval); 626 TV_CP(oitv, i32, it_value); 627 return (copyout(&i32, uap->oitv, sizeof(i32))); 628 } 629 630 int 631 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 632 { 633 struct itimerval itv; 634 struct itimerval32 i32; 635 int error; 636 637 error = kern_getitimer(td, uap->which, &itv); 638 if (error || uap->itv == NULL) 639 return (error); 640 TV_CP(itv, i32, it_interval); 641 TV_CP(itv, i32, it_value); 642 return (copyout(&i32, uap->itv, sizeof(i32))); 643 } 644 645 int 646 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 647 { 648 struct timeval32 tv32; 649 struct timeval tv, *tvp; 650 int error; 651 652 if (uap->tv != NULL) { 653 error = copyin(uap->tv, &tv32, sizeof(tv32)); 654 if (error) 655 return (error); 656 CP(tv32, tv, tv_sec); 657 CP(tv32, tv, tv_usec); 658 tvp = &tv; 659 } else 660 tvp = NULL; 661 /* 662 * XXX Do pointers need PTRIN()? 663 */ 664 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 665 sizeof(int32_t) * 8)); 666 } 667 668 int 669 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 670 { 671 struct timespec32 ts32; 672 struct timespec ts; 673 struct timeval tv, *tvp; 674 sigset_t set, *uset; 675 int error; 676 677 if (uap->ts != NULL) { 678 error = copyin(uap->ts, &ts32, sizeof(ts32)); 679 if (error != 0) 680 return (error); 681 CP(ts32, ts, tv_sec); 682 CP(ts32, ts, tv_nsec); 683 TIMESPEC_TO_TIMEVAL(&tv, &ts); 684 tvp = &tv; 685 } else 686 tvp = NULL; 687 if (uap->sm != NULL) { 688 error = copyin(uap->sm, &set, sizeof(set)); 689 if (error != 0) 690 return (error); 691 uset = &set; 692 } else 693 uset = NULL; 694 /* 695 * XXX Do pointers need PTRIN()? 696 */ 697 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 698 uset, sizeof(int32_t) * 8); 699 return (error); 700 } 701 702 /* 703 * Copy 'count' items into the destination list pointed to by uap->eventlist. 704 */ 705 static int 706 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 707 { 708 struct freebsd32_kevent_args *uap; 709 struct kevent32 ks32[KQ_NEVENTS]; 710 int i, error = 0; 711 712 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 713 uap = (struct freebsd32_kevent_args *)arg; 714 715 for (i = 0; i < count; i++) { 716 CP(kevp[i], ks32[i], ident); 717 CP(kevp[i], ks32[i], filter); 718 CP(kevp[i], ks32[i], flags); 719 CP(kevp[i], ks32[i], fflags); 720 CP(kevp[i], ks32[i], data); 721 PTROUT_CP(kevp[i], ks32[i], udata); 722 } 723 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 724 if (error == 0) 725 uap->eventlist += count; 726 return (error); 727 } 728 729 /* 730 * Copy 'count' items from the list pointed to by uap->changelist. 731 */ 732 static int 733 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 734 { 735 struct freebsd32_kevent_args *uap; 736 struct kevent32 ks32[KQ_NEVENTS]; 737 int i, error = 0; 738 739 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 740 uap = (struct freebsd32_kevent_args *)arg; 741 742 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 743 if (error) 744 goto done; 745 uap->changelist += count; 746 747 for (i = 0; i < count; i++) { 748 CP(ks32[i], kevp[i], ident); 749 CP(ks32[i], kevp[i], filter); 750 CP(ks32[i], kevp[i], flags); 751 CP(ks32[i], kevp[i], fflags); 752 CP(ks32[i], kevp[i], data); 753 PTRIN_CP(ks32[i], kevp[i], udata); 754 } 755 done: 756 return (error); 757 } 758 759 int 760 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 761 { 762 struct timespec32 ts32; 763 struct timespec ts, *tsp; 764 struct kevent_copyops k_ops = { uap, 765 freebsd32_kevent_copyout, 766 freebsd32_kevent_copyin}; 767 int error; 768 769 770 if (uap->timeout) { 771 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 772 if (error) 773 return (error); 774 CP(ts32, ts, tv_sec); 775 CP(ts32, ts, tv_nsec); 776 tsp = &ts; 777 } else 778 tsp = NULL; 779 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 780 &k_ops, tsp); 781 return (error); 782 } 783 784 int 785 freebsd32_gettimeofday(struct thread *td, 786 struct freebsd32_gettimeofday_args *uap) 787 { 788 struct timeval atv; 789 struct timeval32 atv32; 790 struct timezone rtz; 791 int error = 0; 792 793 if (uap->tp) { 794 microtime(&atv); 795 CP(atv, atv32, tv_sec); 796 CP(atv, atv32, tv_usec); 797 error = copyout(&atv32, uap->tp, sizeof (atv32)); 798 } 799 if (error == 0 && uap->tzp != NULL) { 800 rtz.tz_minuteswest = tz_minuteswest; 801 rtz.tz_dsttime = tz_dsttime; 802 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 803 } 804 return (error); 805 } 806 807 int 808 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 809 { 810 struct rusage32 s32; 811 struct rusage s; 812 int error; 813 814 error = kern_getrusage(td, uap->who, &s); 815 if (error) 816 return (error); 817 if (uap->rusage != NULL) { 818 freebsd32_rusage_out(&s, &s32); 819 error = copyout(&s32, uap->rusage, sizeof(s32)); 820 } 821 return (error); 822 } 823 824 static int 825 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 826 { 827 struct iovec32 iov32; 828 struct iovec *iov; 829 struct uio *uio; 830 u_int iovlen; 831 int error, i; 832 833 *uiop = NULL; 834 if (iovcnt > UIO_MAXIOV) 835 return (EINVAL); 836 iovlen = iovcnt * sizeof(struct iovec); 837 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 838 iov = (struct iovec *)(uio + 1); 839 for (i = 0; i < iovcnt; i++) { 840 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 841 if (error) { 842 free(uio, M_IOV); 843 return (error); 844 } 845 iov[i].iov_base = PTRIN(iov32.iov_base); 846 iov[i].iov_len = iov32.iov_len; 847 } 848 uio->uio_iov = iov; 849 uio->uio_iovcnt = iovcnt; 850 uio->uio_segflg = UIO_USERSPACE; 851 uio->uio_offset = -1; 852 uio->uio_resid = 0; 853 for (i = 0; i < iovcnt; i++) { 854 if (iov->iov_len > INT_MAX - uio->uio_resid) { 855 free(uio, M_IOV); 856 return (EINVAL); 857 } 858 uio->uio_resid += iov->iov_len; 859 iov++; 860 } 861 *uiop = uio; 862 return (0); 863 } 864 865 int 866 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 867 { 868 struct uio *auio; 869 int error; 870 871 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 872 if (error) 873 return (error); 874 error = kern_readv(td, uap->fd, auio); 875 free(auio, M_IOV); 876 return (error); 877 } 878 879 int 880 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 881 { 882 struct uio *auio; 883 int error; 884 885 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 886 if (error) 887 return (error); 888 error = kern_writev(td, uap->fd, auio); 889 free(auio, M_IOV); 890 return (error); 891 } 892 893 int 894 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 895 { 896 struct uio *auio; 897 int error; 898 899 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 900 if (error) 901 return (error); 902 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 903 free(auio, M_IOV); 904 return (error); 905 } 906 907 int 908 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 909 { 910 struct uio *auio; 911 int error; 912 913 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 914 if (error) 915 return (error); 916 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 917 free(auio, M_IOV); 918 return (error); 919 } 920 921 int 922 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 923 int error) 924 { 925 struct iovec32 iov32; 926 struct iovec *iov; 927 u_int iovlen; 928 int i; 929 930 *iovp = NULL; 931 if (iovcnt > UIO_MAXIOV) 932 return (error); 933 iovlen = iovcnt * sizeof(struct iovec); 934 iov = malloc(iovlen, M_IOV, M_WAITOK); 935 for (i = 0; i < iovcnt; i++) { 936 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 937 if (error) { 938 free(iov, M_IOV); 939 return (error); 940 } 941 iov[i].iov_base = PTRIN(iov32.iov_base); 942 iov[i].iov_len = iov32.iov_len; 943 } 944 *iovp = iov; 945 return (0); 946 } 947 948 static int 949 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 950 { 951 struct msghdr32 m32; 952 int error; 953 954 error = copyin(msg32, &m32, sizeof(m32)); 955 if (error) 956 return (error); 957 msg->msg_name = PTRIN(m32.msg_name); 958 msg->msg_namelen = m32.msg_namelen; 959 msg->msg_iov = PTRIN(m32.msg_iov); 960 msg->msg_iovlen = m32.msg_iovlen; 961 msg->msg_control = PTRIN(m32.msg_control); 962 msg->msg_controllen = m32.msg_controllen; 963 msg->msg_flags = m32.msg_flags; 964 return (0); 965 } 966 967 static int 968 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 969 { 970 struct msghdr32 m32; 971 int error; 972 973 m32.msg_name = PTROUT(msg->msg_name); 974 m32.msg_namelen = msg->msg_namelen; 975 m32.msg_iov = PTROUT(msg->msg_iov); 976 m32.msg_iovlen = msg->msg_iovlen; 977 m32.msg_control = PTROUT(msg->msg_control); 978 m32.msg_controllen = msg->msg_controllen; 979 m32.msg_flags = msg->msg_flags; 980 error = copyout(&m32, msg32, sizeof(m32)); 981 return (error); 982 } 983 984 #ifndef __mips__ 985 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 986 #else 987 #define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 988 #endif 989 #define FREEBSD32_ALIGN(p) \ 990 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 991 #define FREEBSD32_CMSG_SPACE(l) \ 992 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 993 994 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 995 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 996 static int 997 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 998 { 999 struct cmsghdr *cm; 1000 void *data; 1001 socklen_t clen, datalen; 1002 int error; 1003 caddr_t ctlbuf; 1004 int len, maxlen, copylen; 1005 struct mbuf *m; 1006 error = 0; 1007 1008 len = msg->msg_controllen; 1009 maxlen = msg->msg_controllen; 1010 msg->msg_controllen = 0; 1011 1012 m = control; 1013 ctlbuf = msg->msg_control; 1014 1015 while (m && len > 0) { 1016 cm = mtod(m, struct cmsghdr *); 1017 clen = m->m_len; 1018 1019 while (cm != NULL) { 1020 1021 if (sizeof(struct cmsghdr) > clen || 1022 cm->cmsg_len > clen) { 1023 error = EINVAL; 1024 break; 1025 } 1026 1027 data = CMSG_DATA(cm); 1028 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1029 1030 /* Adjust message length */ 1031 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 1032 datalen; 1033 1034 1035 /* Copy cmsghdr */ 1036 copylen = sizeof(struct cmsghdr); 1037 if (len < copylen) { 1038 msg->msg_flags |= MSG_CTRUNC; 1039 copylen = len; 1040 } 1041 1042 error = copyout(cm,ctlbuf,copylen); 1043 if (error) 1044 goto exit; 1045 1046 ctlbuf += FREEBSD32_ALIGN(copylen); 1047 len -= FREEBSD32_ALIGN(copylen); 1048 1049 if (len <= 0) 1050 break; 1051 1052 /* Copy data */ 1053 copylen = datalen; 1054 if (len < copylen) { 1055 msg->msg_flags |= MSG_CTRUNC; 1056 copylen = len; 1057 } 1058 1059 error = copyout(data,ctlbuf,copylen); 1060 if (error) 1061 goto exit; 1062 1063 ctlbuf += FREEBSD32_ALIGN(copylen); 1064 len -= FREEBSD32_ALIGN(copylen); 1065 1066 if (CMSG_SPACE(datalen) < clen) { 1067 clen -= CMSG_SPACE(datalen); 1068 cm = (struct cmsghdr *) 1069 ((caddr_t)cm + CMSG_SPACE(datalen)); 1070 } else { 1071 clen = 0; 1072 cm = NULL; 1073 } 1074 } 1075 m = m->m_next; 1076 } 1077 1078 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 1079 1080 exit: 1081 return (error); 1082 1083 } 1084 1085 int 1086 freebsd32_recvmsg(td, uap) 1087 struct thread *td; 1088 struct freebsd32_recvmsg_args /* { 1089 int s; 1090 struct msghdr32 *msg; 1091 int flags; 1092 } */ *uap; 1093 { 1094 struct msghdr msg; 1095 struct msghdr32 m32; 1096 struct iovec *uiov, *iov; 1097 struct mbuf *control = NULL; 1098 struct mbuf **controlp; 1099 1100 int error; 1101 error = copyin(uap->msg, &m32, sizeof(m32)); 1102 if (error) 1103 return (error); 1104 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1105 if (error) 1106 return (error); 1107 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1108 EMSGSIZE); 1109 if (error) 1110 return (error); 1111 msg.msg_flags = uap->flags; 1112 uiov = msg.msg_iov; 1113 msg.msg_iov = iov; 1114 1115 controlp = (msg.msg_control != NULL) ? &control : NULL; 1116 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1117 if (error == 0) { 1118 msg.msg_iov = uiov; 1119 1120 if (control != NULL) 1121 error = freebsd32_copy_msg_out(&msg, control); 1122 else 1123 msg.msg_controllen = 0; 1124 1125 if (error == 0) 1126 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1127 } 1128 free(iov, M_IOV); 1129 1130 if (control != NULL) 1131 m_freem(control); 1132 1133 return (error); 1134 } 1135 1136 /* 1137 * Copy-in the array of control messages constructed using alignment 1138 * and padding suitable for a 32-bit environment and construct an 1139 * mbuf using alignment and padding suitable for a 64-bit kernel. 1140 * The alignment and padding are defined indirectly by CMSG_DATA(), 1141 * CMSG_SPACE() and CMSG_LEN(). 1142 */ 1143 static int 1144 freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1145 { 1146 struct mbuf *m; 1147 void *md; 1148 u_int idx, len, msglen; 1149 int error; 1150 1151 buflen = FREEBSD32_ALIGN(buflen); 1152 1153 if (buflen > MCLBYTES) 1154 return (EINVAL); 1155 1156 /* 1157 * Iterate over the buffer and get the length of each message 1158 * in there. This has 32-bit alignment and padding. Use it to 1159 * determine the length of these messages when using 64-bit 1160 * alignment and padding. 1161 */ 1162 idx = 0; 1163 len = 0; 1164 while (idx < buflen) { 1165 error = copyin(buf + idx, &msglen, sizeof(msglen)); 1166 if (error) 1167 return (error); 1168 if (msglen < sizeof(struct cmsghdr)) 1169 return (EINVAL); 1170 msglen = FREEBSD32_ALIGN(msglen); 1171 if (idx + msglen > buflen) 1172 return (EINVAL); 1173 idx += msglen; 1174 msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) - 1175 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1176 len += CMSG_ALIGN(msglen); 1177 } 1178 1179 if (len > MCLBYTES) 1180 return (EINVAL); 1181 1182 m = m_get(M_WAITOK, MT_CONTROL); 1183 if (len > MLEN) 1184 MCLGET(m, M_WAITOK); 1185 m->m_len = len; 1186 1187 md = mtod(m, void *); 1188 while (buflen > 0) { 1189 error = copyin(buf, md, sizeof(struct cmsghdr)); 1190 if (error) 1191 break; 1192 msglen = *(u_int *)md; 1193 msglen = FREEBSD32_ALIGN(msglen); 1194 1195 /* Modify the message length to account for alignment. */ 1196 *(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) - 1197 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1198 1199 md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr)); 1200 buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1201 buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1202 1203 msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1204 if (msglen > 0) { 1205 error = copyin(buf, md, msglen); 1206 if (error) 1207 break; 1208 md = (char *)md + CMSG_ALIGN(msglen); 1209 buf += msglen; 1210 buflen -= msglen; 1211 } 1212 } 1213 1214 if (error) 1215 m_free(m); 1216 else 1217 *mp = m; 1218 return (error); 1219 } 1220 1221 int 1222 freebsd32_sendmsg(struct thread *td, 1223 struct freebsd32_sendmsg_args *uap) 1224 { 1225 struct msghdr msg; 1226 struct msghdr32 m32; 1227 struct iovec *iov; 1228 struct mbuf *control = NULL; 1229 struct sockaddr *to = NULL; 1230 int error; 1231 1232 error = copyin(uap->msg, &m32, sizeof(m32)); 1233 if (error) 1234 return (error); 1235 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1236 if (error) 1237 return (error); 1238 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1239 EMSGSIZE); 1240 if (error) 1241 return (error); 1242 msg.msg_iov = iov; 1243 if (msg.msg_name != NULL) { 1244 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1245 if (error) { 1246 to = NULL; 1247 goto out; 1248 } 1249 msg.msg_name = to; 1250 } 1251 1252 if (msg.msg_control) { 1253 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1254 error = EINVAL; 1255 goto out; 1256 } 1257 1258 error = freebsd32_copyin_control(&control, msg.msg_control, 1259 msg.msg_controllen); 1260 if (error) 1261 goto out; 1262 1263 msg.msg_control = NULL; 1264 msg.msg_controllen = 0; 1265 } 1266 1267 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1268 UIO_USERSPACE); 1269 1270 out: 1271 free(iov, M_IOV); 1272 if (to) 1273 free(to, M_SONAME); 1274 return (error); 1275 } 1276 1277 int 1278 freebsd32_recvfrom(struct thread *td, 1279 struct freebsd32_recvfrom_args *uap) 1280 { 1281 struct msghdr msg; 1282 struct iovec aiov; 1283 int error; 1284 1285 if (uap->fromlenaddr) { 1286 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1287 sizeof(msg.msg_namelen)); 1288 if (error) 1289 return (error); 1290 } else { 1291 msg.msg_namelen = 0; 1292 } 1293 1294 msg.msg_name = PTRIN(uap->from); 1295 msg.msg_iov = &aiov; 1296 msg.msg_iovlen = 1; 1297 aiov.iov_base = PTRIN(uap->buf); 1298 aiov.iov_len = uap->len; 1299 msg.msg_control = NULL; 1300 msg.msg_flags = uap->flags; 1301 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1302 if (error == 0 && uap->fromlenaddr) 1303 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1304 sizeof (msg.msg_namelen)); 1305 return (error); 1306 } 1307 1308 int 1309 freebsd32_settimeofday(struct thread *td, 1310 struct freebsd32_settimeofday_args *uap) 1311 { 1312 struct timeval32 tv32; 1313 struct timeval tv, *tvp; 1314 struct timezone tz, *tzp; 1315 int error; 1316 1317 if (uap->tv) { 1318 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1319 if (error) 1320 return (error); 1321 CP(tv32, tv, tv_sec); 1322 CP(tv32, tv, tv_usec); 1323 tvp = &tv; 1324 } else 1325 tvp = NULL; 1326 if (uap->tzp) { 1327 error = copyin(uap->tzp, &tz, sizeof(tz)); 1328 if (error) 1329 return (error); 1330 tzp = &tz; 1331 } else 1332 tzp = NULL; 1333 return (kern_settimeofday(td, tvp, tzp)); 1334 } 1335 1336 int 1337 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1338 { 1339 struct timeval32 s32[2]; 1340 struct timeval s[2], *sp; 1341 int error; 1342 1343 if (uap->tptr != NULL) { 1344 error = copyin(uap->tptr, s32, sizeof(s32)); 1345 if (error) 1346 return (error); 1347 CP(s32[0], s[0], tv_sec); 1348 CP(s32[0], s[0], tv_usec); 1349 CP(s32[1], s[1], tv_sec); 1350 CP(s32[1], s[1], tv_usec); 1351 sp = s; 1352 } else 1353 sp = NULL; 1354 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1355 } 1356 1357 int 1358 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1359 { 1360 struct timeval32 s32[2]; 1361 struct timeval s[2], *sp; 1362 int error; 1363 1364 if (uap->tptr != NULL) { 1365 error = copyin(uap->tptr, s32, sizeof(s32)); 1366 if (error) 1367 return (error); 1368 CP(s32[0], s[0], tv_sec); 1369 CP(s32[0], s[0], tv_usec); 1370 CP(s32[1], s[1], tv_sec); 1371 CP(s32[1], s[1], tv_usec); 1372 sp = s; 1373 } else 1374 sp = NULL; 1375 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1376 } 1377 1378 int 1379 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1380 { 1381 struct timeval32 s32[2]; 1382 struct timeval s[2], *sp; 1383 int error; 1384 1385 if (uap->tptr != NULL) { 1386 error = copyin(uap->tptr, s32, sizeof(s32)); 1387 if (error) 1388 return (error); 1389 CP(s32[0], s[0], tv_sec); 1390 CP(s32[0], s[0], tv_usec); 1391 CP(s32[1], s[1], tv_sec); 1392 CP(s32[1], s[1], tv_usec); 1393 sp = s; 1394 } else 1395 sp = NULL; 1396 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1397 } 1398 1399 int 1400 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1401 { 1402 struct timeval32 s32[2]; 1403 struct timeval s[2], *sp; 1404 int error; 1405 1406 if (uap->times != NULL) { 1407 error = copyin(uap->times, s32, sizeof(s32)); 1408 if (error) 1409 return (error); 1410 CP(s32[0], s[0], tv_sec); 1411 CP(s32[0], s[0], tv_usec); 1412 CP(s32[1], s[1], tv_sec); 1413 CP(s32[1], s[1], tv_usec); 1414 sp = s; 1415 } else 1416 sp = NULL; 1417 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1418 sp, UIO_SYSSPACE)); 1419 } 1420 1421 int 1422 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1423 { 1424 struct timeval32 tv32; 1425 struct timeval delta, olddelta, *deltap; 1426 int error; 1427 1428 if (uap->delta) { 1429 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1430 if (error) 1431 return (error); 1432 CP(tv32, delta, tv_sec); 1433 CP(tv32, delta, tv_usec); 1434 deltap = δ 1435 } else 1436 deltap = NULL; 1437 error = kern_adjtime(td, deltap, &olddelta); 1438 if (uap->olddelta && error == 0) { 1439 CP(olddelta, tv32, tv_sec); 1440 CP(olddelta, tv32, tv_usec); 1441 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1442 } 1443 return (error); 1444 } 1445 1446 #ifdef COMPAT_FREEBSD4 1447 int 1448 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1449 { 1450 struct statfs32 s32; 1451 struct statfs s; 1452 int error; 1453 1454 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1455 if (error) 1456 return (error); 1457 copy_statfs(&s, &s32); 1458 return (copyout(&s32, uap->buf, sizeof(s32))); 1459 } 1460 #endif 1461 1462 #ifdef COMPAT_FREEBSD4 1463 int 1464 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1465 { 1466 struct statfs32 s32; 1467 struct statfs s; 1468 int error; 1469 1470 error = kern_fstatfs(td, uap->fd, &s); 1471 if (error) 1472 return (error); 1473 copy_statfs(&s, &s32); 1474 return (copyout(&s32, uap->buf, sizeof(s32))); 1475 } 1476 #endif 1477 1478 #ifdef COMPAT_FREEBSD4 1479 int 1480 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1481 { 1482 struct statfs32 s32; 1483 struct statfs s; 1484 fhandle_t fh; 1485 int error; 1486 1487 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1488 return (error); 1489 error = kern_fhstatfs(td, fh, &s); 1490 if (error) 1491 return (error); 1492 copy_statfs(&s, &s32); 1493 return (copyout(&s32, uap->buf, sizeof(s32))); 1494 } 1495 #endif 1496 1497 int 1498 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1499 { 1500 struct pread_args ap; 1501 1502 ap.fd = uap->fd; 1503 ap.buf = uap->buf; 1504 ap.nbyte = uap->nbyte; 1505 ap.offset = PAIR32TO64(off_t,uap->offset); 1506 return (sys_pread(td, &ap)); 1507 } 1508 1509 int 1510 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1511 { 1512 struct pwrite_args ap; 1513 1514 ap.fd = uap->fd; 1515 ap.buf = uap->buf; 1516 ap.nbyte = uap->nbyte; 1517 ap.offset = PAIR32TO64(off_t,uap->offset); 1518 return (sys_pwrite(td, &ap)); 1519 } 1520 1521 #ifdef COMPAT_43 1522 int 1523 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1524 { 1525 struct lseek_args nuap; 1526 1527 nuap.fd = uap->fd; 1528 nuap.offset = uap->offset; 1529 nuap.whence = uap->whence; 1530 return (sys_lseek(td, &nuap)); 1531 } 1532 #endif 1533 1534 int 1535 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1536 { 1537 int error; 1538 struct lseek_args ap; 1539 off_t pos; 1540 1541 ap.fd = uap->fd; 1542 ap.offset = PAIR32TO64(off_t,uap->offset); 1543 ap.whence = uap->whence; 1544 error = sys_lseek(td, &ap); 1545 /* Expand the quad return into two parts for eax and edx */ 1546 pos = *(off_t *)(td->td_retval); 1547 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1548 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1549 return error; 1550 } 1551 1552 int 1553 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1554 { 1555 struct truncate_args ap; 1556 1557 ap.path = uap->path; 1558 ap.length = PAIR32TO64(off_t,uap->length); 1559 return (sys_truncate(td, &ap)); 1560 } 1561 1562 int 1563 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1564 { 1565 struct ftruncate_args ap; 1566 1567 ap.fd = uap->fd; 1568 ap.length = PAIR32TO64(off_t,uap->length); 1569 return (sys_ftruncate(td, &ap)); 1570 } 1571 1572 #ifdef COMPAT_43 1573 int 1574 ofreebsd32_getdirentries(struct thread *td, 1575 struct ofreebsd32_getdirentries_args *uap) 1576 { 1577 struct ogetdirentries_args ap; 1578 int error; 1579 long loff; 1580 int32_t loff_cut; 1581 1582 ap.fd = uap->fd; 1583 ap.buf = uap->buf; 1584 ap.count = uap->count; 1585 ap.basep = NULL; 1586 error = kern_ogetdirentries(td, &ap, &loff); 1587 if (error == 0) { 1588 loff_cut = loff; 1589 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1590 } 1591 return (error); 1592 } 1593 #endif 1594 1595 int 1596 freebsd32_getdirentries(struct thread *td, 1597 struct freebsd32_getdirentries_args *uap) 1598 { 1599 long base; 1600 int32_t base32; 1601 int error; 1602 1603 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1604 NULL, UIO_USERSPACE); 1605 if (error) 1606 return (error); 1607 if (uap->basep != NULL) { 1608 base32 = base; 1609 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1610 } 1611 return (error); 1612 } 1613 1614 #ifdef COMPAT_FREEBSD6 1615 /* versions with the 'int pad' argument */ 1616 int 1617 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1618 { 1619 struct pread_args ap; 1620 1621 ap.fd = uap->fd; 1622 ap.buf = uap->buf; 1623 ap.nbyte = uap->nbyte; 1624 ap.offset = PAIR32TO64(off_t,uap->offset); 1625 return (sys_pread(td, &ap)); 1626 } 1627 1628 int 1629 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1630 { 1631 struct pwrite_args ap; 1632 1633 ap.fd = uap->fd; 1634 ap.buf = uap->buf; 1635 ap.nbyte = uap->nbyte; 1636 ap.offset = PAIR32TO64(off_t,uap->offset); 1637 return (sys_pwrite(td, &ap)); 1638 } 1639 1640 int 1641 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1642 { 1643 int error; 1644 struct lseek_args ap; 1645 off_t pos; 1646 1647 ap.fd = uap->fd; 1648 ap.offset = PAIR32TO64(off_t,uap->offset); 1649 ap.whence = uap->whence; 1650 error = sys_lseek(td, &ap); 1651 /* Expand the quad return into two parts for eax and edx */ 1652 pos = *(off_t *)(td->td_retval); 1653 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1654 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1655 return error; 1656 } 1657 1658 int 1659 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1660 { 1661 struct truncate_args ap; 1662 1663 ap.path = uap->path; 1664 ap.length = PAIR32TO64(off_t,uap->length); 1665 return (sys_truncate(td, &ap)); 1666 } 1667 1668 int 1669 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1670 { 1671 struct ftruncate_args ap; 1672 1673 ap.fd = uap->fd; 1674 ap.length = PAIR32TO64(off_t,uap->length); 1675 return (sys_ftruncate(td, &ap)); 1676 } 1677 #endif /* COMPAT_FREEBSD6 */ 1678 1679 struct sf_hdtr32 { 1680 uint32_t headers; 1681 int hdr_cnt; 1682 uint32_t trailers; 1683 int trl_cnt; 1684 }; 1685 1686 static int 1687 freebsd32_do_sendfile(struct thread *td, 1688 struct freebsd32_sendfile_args *uap, int compat) 1689 { 1690 struct sf_hdtr32 hdtr32; 1691 struct sf_hdtr hdtr; 1692 struct uio *hdr_uio, *trl_uio; 1693 struct iovec32 *iov32; 1694 struct file *fp; 1695 cap_rights_t rights; 1696 off_t offset; 1697 int error; 1698 1699 offset = PAIR32TO64(off_t, uap->offset); 1700 if (offset < 0) 1701 return (EINVAL); 1702 1703 hdr_uio = trl_uio = NULL; 1704 1705 if (uap->hdtr != NULL) { 1706 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1707 if (error) 1708 goto out; 1709 PTRIN_CP(hdtr32, hdtr, headers); 1710 CP(hdtr32, hdtr, hdr_cnt); 1711 PTRIN_CP(hdtr32, hdtr, trailers); 1712 CP(hdtr32, hdtr, trl_cnt); 1713 1714 if (hdtr.headers != NULL) { 1715 iov32 = PTRIN(hdtr32.headers); 1716 error = freebsd32_copyinuio(iov32, 1717 hdtr32.hdr_cnt, &hdr_uio); 1718 if (error) 1719 goto out; 1720 } 1721 if (hdtr.trailers != NULL) { 1722 iov32 = PTRIN(hdtr32.trailers); 1723 error = freebsd32_copyinuio(iov32, 1724 hdtr32.trl_cnt, &trl_uio); 1725 if (error) 1726 goto out; 1727 } 1728 } 1729 1730 AUDIT_ARG_FD(uap->fd); 1731 1732 if ((error = fget_read(td, uap->fd, 1733 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) { 1734 goto out; 1735 } 1736 1737 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1738 uap->nbytes, uap->sbytes, uap->flags, compat ? SFK_COMPAT : 0, td); 1739 fdrop(fp, td); 1740 1741 out: 1742 if (hdr_uio) 1743 free(hdr_uio, M_IOV); 1744 if (trl_uio) 1745 free(trl_uio, M_IOV); 1746 return (error); 1747 } 1748 1749 #ifdef COMPAT_FREEBSD4 1750 int 1751 freebsd4_freebsd32_sendfile(struct thread *td, 1752 struct freebsd4_freebsd32_sendfile_args *uap) 1753 { 1754 return (freebsd32_do_sendfile(td, 1755 (struct freebsd32_sendfile_args *)uap, 1)); 1756 } 1757 #endif 1758 1759 int 1760 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1761 { 1762 1763 return (freebsd32_do_sendfile(td, uap, 0)); 1764 } 1765 1766 static void 1767 copy_stat(struct stat *in, struct stat32 *out) 1768 { 1769 1770 CP(*in, *out, st_dev); 1771 CP(*in, *out, st_ino); 1772 CP(*in, *out, st_mode); 1773 CP(*in, *out, st_nlink); 1774 CP(*in, *out, st_uid); 1775 CP(*in, *out, st_gid); 1776 CP(*in, *out, st_rdev); 1777 TS_CP(*in, *out, st_atim); 1778 TS_CP(*in, *out, st_mtim); 1779 TS_CP(*in, *out, st_ctim); 1780 CP(*in, *out, st_size); 1781 CP(*in, *out, st_blocks); 1782 CP(*in, *out, st_blksize); 1783 CP(*in, *out, st_flags); 1784 CP(*in, *out, st_gen); 1785 TS_CP(*in, *out, st_birthtim); 1786 } 1787 1788 #ifdef COMPAT_43 1789 static void 1790 copy_ostat(struct stat *in, struct ostat32 *out) 1791 { 1792 1793 CP(*in, *out, st_dev); 1794 CP(*in, *out, st_ino); 1795 CP(*in, *out, st_mode); 1796 CP(*in, *out, st_nlink); 1797 CP(*in, *out, st_uid); 1798 CP(*in, *out, st_gid); 1799 CP(*in, *out, st_rdev); 1800 CP(*in, *out, st_size); 1801 TS_CP(*in, *out, st_atim); 1802 TS_CP(*in, *out, st_mtim); 1803 TS_CP(*in, *out, st_ctim); 1804 CP(*in, *out, st_blksize); 1805 CP(*in, *out, st_blocks); 1806 CP(*in, *out, st_flags); 1807 CP(*in, *out, st_gen); 1808 } 1809 #endif 1810 1811 int 1812 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1813 { 1814 struct stat sb; 1815 struct stat32 sb32; 1816 int error; 1817 1818 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1819 if (error) 1820 return (error); 1821 copy_stat(&sb, &sb32); 1822 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1823 return (error); 1824 } 1825 1826 #ifdef COMPAT_43 1827 int 1828 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1829 { 1830 struct stat sb; 1831 struct ostat32 sb32; 1832 int error; 1833 1834 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1835 if (error) 1836 return (error); 1837 copy_ostat(&sb, &sb32); 1838 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1839 return (error); 1840 } 1841 #endif 1842 1843 int 1844 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1845 { 1846 struct stat ub; 1847 struct stat32 ub32; 1848 int error; 1849 1850 error = kern_fstat(td, uap->fd, &ub); 1851 if (error) 1852 return (error); 1853 copy_stat(&ub, &ub32); 1854 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1855 return (error); 1856 } 1857 1858 #ifdef COMPAT_43 1859 int 1860 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1861 { 1862 struct stat ub; 1863 struct ostat32 ub32; 1864 int error; 1865 1866 error = kern_fstat(td, uap->fd, &ub); 1867 if (error) 1868 return (error); 1869 copy_ostat(&ub, &ub32); 1870 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1871 return (error); 1872 } 1873 #endif 1874 1875 int 1876 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1877 { 1878 struct stat ub; 1879 struct stat32 ub32; 1880 int error; 1881 1882 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1883 if (error) 1884 return (error); 1885 copy_stat(&ub, &ub32); 1886 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1887 return (error); 1888 } 1889 1890 int 1891 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1892 { 1893 struct stat sb; 1894 struct stat32 sb32; 1895 int error; 1896 1897 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1898 if (error) 1899 return (error); 1900 copy_stat(&sb, &sb32); 1901 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1902 return (error); 1903 } 1904 1905 #ifdef COMPAT_43 1906 int 1907 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1908 { 1909 struct stat sb; 1910 struct ostat32 sb32; 1911 int error; 1912 1913 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1914 if (error) 1915 return (error); 1916 copy_ostat(&sb, &sb32); 1917 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1918 return (error); 1919 } 1920 #endif 1921 1922 int 1923 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1924 { 1925 int error, name[CTL_MAXNAME]; 1926 size_t j, oldlen; 1927 1928 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1929 return (EINVAL); 1930 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1931 if (error) 1932 return (error); 1933 if (uap->oldlenp) 1934 oldlen = fuword32(uap->oldlenp); 1935 else 1936 oldlen = 0; 1937 error = userland_sysctl(td, name, uap->namelen, 1938 uap->old, &oldlen, 1, 1939 uap->new, uap->newlen, &j, SCTL_MASK32); 1940 if (error && error != ENOMEM) 1941 return (error); 1942 if (uap->oldlenp) 1943 suword32(uap->oldlenp, j); 1944 return (0); 1945 } 1946 1947 int 1948 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1949 { 1950 uint32_t version; 1951 int error; 1952 struct jail j; 1953 1954 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1955 if (error) 1956 return (error); 1957 1958 switch (version) { 1959 case 0: 1960 { 1961 /* FreeBSD single IPv4 jails. */ 1962 struct jail32_v0 j32_v0; 1963 1964 bzero(&j, sizeof(struct jail)); 1965 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1966 if (error) 1967 return (error); 1968 CP(j32_v0, j, version); 1969 PTRIN_CP(j32_v0, j, path); 1970 PTRIN_CP(j32_v0, j, hostname); 1971 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1972 break; 1973 } 1974 1975 case 1: 1976 /* 1977 * Version 1 was used by multi-IPv4 jail implementations 1978 * that never made it into the official kernel. 1979 */ 1980 return (EINVAL); 1981 1982 case 2: /* JAIL_API_VERSION */ 1983 { 1984 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1985 struct jail32 j32; 1986 1987 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1988 if (error) 1989 return (error); 1990 CP(j32, j, version); 1991 PTRIN_CP(j32, j, path); 1992 PTRIN_CP(j32, j, hostname); 1993 PTRIN_CP(j32, j, jailname); 1994 CP(j32, j, ip4s); 1995 CP(j32, j, ip6s); 1996 PTRIN_CP(j32, j, ip4); 1997 PTRIN_CP(j32, j, ip6); 1998 break; 1999 } 2000 2001 default: 2002 /* Sci-Fi jails are not supported, sorry. */ 2003 return (EINVAL); 2004 } 2005 return (kern_jail(td, &j)); 2006 } 2007 2008 int 2009 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 2010 { 2011 struct uio *auio; 2012 int error; 2013 2014 /* Check that we have an even number of iovecs. */ 2015 if (uap->iovcnt & 1) 2016 return (EINVAL); 2017 2018 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2019 if (error) 2020 return (error); 2021 error = kern_jail_set(td, auio, uap->flags); 2022 free(auio, M_IOV); 2023 return (error); 2024 } 2025 2026 int 2027 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 2028 { 2029 struct iovec32 iov32; 2030 struct uio *auio; 2031 int error, i; 2032 2033 /* Check that we have an even number of iovecs. */ 2034 if (uap->iovcnt & 1) 2035 return (EINVAL); 2036 2037 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2038 if (error) 2039 return (error); 2040 error = kern_jail_get(td, auio, uap->flags); 2041 if (error == 0) 2042 for (i = 0; i < uap->iovcnt; i++) { 2043 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 2044 CP(auio->uio_iov[i], iov32, iov_len); 2045 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 2046 if (error != 0) 2047 break; 2048 } 2049 free(auio, M_IOV); 2050 return (error); 2051 } 2052 2053 int 2054 freebsd32_sigaction(struct thread *td, struct 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, 0); 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 2080 #ifdef COMPAT_FREEBSD4 2081 int 2082 freebsd4_freebsd32_sigaction(struct thread *td, 2083 struct freebsd4_freebsd32_sigaction_args *uap) 2084 { 2085 struct sigaction32 s32; 2086 struct sigaction sa, osa, *sap; 2087 int error; 2088 2089 if (uap->act) { 2090 error = copyin(uap->act, &s32, sizeof(s32)); 2091 if (error) 2092 return (error); 2093 sa.sa_handler = PTRIN(s32.sa_u); 2094 CP(s32, sa, sa_flags); 2095 CP(s32, sa, sa_mask); 2096 sap = &sa; 2097 } else 2098 sap = NULL; 2099 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2100 if (error == 0 && uap->oact != NULL) { 2101 s32.sa_u = PTROUT(osa.sa_handler); 2102 CP(osa, s32, sa_flags); 2103 CP(osa, s32, sa_mask); 2104 error = copyout(&s32, uap->oact, sizeof(s32)); 2105 } 2106 return (error); 2107 } 2108 #endif 2109 2110 #ifdef COMPAT_43 2111 struct osigaction32 { 2112 u_int32_t sa_u; 2113 osigset_t sa_mask; 2114 int sa_flags; 2115 }; 2116 2117 #define ONSIG 32 2118 2119 int 2120 ofreebsd32_sigaction(struct thread *td, 2121 struct ofreebsd32_sigaction_args *uap) 2122 { 2123 struct osigaction32 s32; 2124 struct sigaction sa, osa, *sap; 2125 int error; 2126 2127 if (uap->signum <= 0 || uap->signum >= ONSIG) 2128 return (EINVAL); 2129 2130 if (uap->nsa) { 2131 error = copyin(uap->nsa, &s32, sizeof(s32)); 2132 if (error) 2133 return (error); 2134 sa.sa_handler = PTRIN(s32.sa_u); 2135 CP(s32, sa, sa_flags); 2136 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2137 sap = &sa; 2138 } else 2139 sap = NULL; 2140 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2141 if (error == 0 && uap->osa != NULL) { 2142 s32.sa_u = PTROUT(osa.sa_handler); 2143 CP(osa, s32, sa_flags); 2144 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2145 error = copyout(&s32, uap->osa, sizeof(s32)); 2146 } 2147 return (error); 2148 } 2149 2150 int 2151 ofreebsd32_sigprocmask(struct thread *td, 2152 struct ofreebsd32_sigprocmask_args *uap) 2153 { 2154 sigset_t set, oset; 2155 int error; 2156 2157 OSIG2SIG(uap->mask, set); 2158 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2159 SIG2OSIG(oset, td->td_retval[0]); 2160 return (error); 2161 } 2162 2163 int 2164 ofreebsd32_sigpending(struct thread *td, 2165 struct ofreebsd32_sigpending_args *uap) 2166 { 2167 struct proc *p = td->td_proc; 2168 sigset_t siglist; 2169 2170 PROC_LOCK(p); 2171 siglist = p->p_siglist; 2172 SIGSETOR(siglist, td->td_siglist); 2173 PROC_UNLOCK(p); 2174 SIG2OSIG(siglist, td->td_retval[0]); 2175 return (0); 2176 } 2177 2178 struct sigvec32 { 2179 u_int32_t sv_handler; 2180 int sv_mask; 2181 int sv_flags; 2182 }; 2183 2184 int 2185 ofreebsd32_sigvec(struct thread *td, 2186 struct ofreebsd32_sigvec_args *uap) 2187 { 2188 struct sigvec32 vec; 2189 struct sigaction sa, osa, *sap; 2190 int error; 2191 2192 if (uap->signum <= 0 || uap->signum >= ONSIG) 2193 return (EINVAL); 2194 2195 if (uap->nsv) { 2196 error = copyin(uap->nsv, &vec, sizeof(vec)); 2197 if (error) 2198 return (error); 2199 sa.sa_handler = PTRIN(vec.sv_handler); 2200 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2201 sa.sa_flags = vec.sv_flags; 2202 sa.sa_flags ^= SA_RESTART; 2203 sap = &sa; 2204 } else 2205 sap = NULL; 2206 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2207 if (error == 0 && uap->osv != NULL) { 2208 vec.sv_handler = PTROUT(osa.sa_handler); 2209 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2210 vec.sv_flags = osa.sa_flags; 2211 vec.sv_flags &= ~SA_NOCLDWAIT; 2212 vec.sv_flags ^= SA_RESTART; 2213 error = copyout(&vec, uap->osv, sizeof(vec)); 2214 } 2215 return (error); 2216 } 2217 2218 int 2219 ofreebsd32_sigblock(struct thread *td, 2220 struct ofreebsd32_sigblock_args *uap) 2221 { 2222 sigset_t set, oset; 2223 2224 OSIG2SIG(uap->mask, set); 2225 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2226 SIG2OSIG(oset, td->td_retval[0]); 2227 return (0); 2228 } 2229 2230 int 2231 ofreebsd32_sigsetmask(struct thread *td, 2232 struct ofreebsd32_sigsetmask_args *uap) 2233 { 2234 sigset_t set, oset; 2235 2236 OSIG2SIG(uap->mask, set); 2237 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2238 SIG2OSIG(oset, td->td_retval[0]); 2239 return (0); 2240 } 2241 2242 int 2243 ofreebsd32_sigsuspend(struct thread *td, 2244 struct ofreebsd32_sigsuspend_args *uap) 2245 { 2246 sigset_t mask; 2247 2248 OSIG2SIG(uap->mask, mask); 2249 return (kern_sigsuspend(td, mask)); 2250 } 2251 2252 struct sigstack32 { 2253 u_int32_t ss_sp; 2254 int ss_onstack; 2255 }; 2256 2257 int 2258 ofreebsd32_sigstack(struct thread *td, 2259 struct ofreebsd32_sigstack_args *uap) 2260 { 2261 struct sigstack32 s32; 2262 struct sigstack nss, oss; 2263 int error = 0, unss; 2264 2265 if (uap->nss != NULL) { 2266 error = copyin(uap->nss, &s32, sizeof(s32)); 2267 if (error) 2268 return (error); 2269 nss.ss_sp = PTRIN(s32.ss_sp); 2270 CP(s32, nss, ss_onstack); 2271 unss = 1; 2272 } else { 2273 unss = 0; 2274 } 2275 oss.ss_sp = td->td_sigstk.ss_sp; 2276 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2277 if (unss) { 2278 td->td_sigstk.ss_sp = nss.ss_sp; 2279 td->td_sigstk.ss_size = 0; 2280 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2281 td->td_pflags |= TDP_ALTSTACK; 2282 } 2283 if (uap->oss != NULL) { 2284 s32.ss_sp = PTROUT(oss.ss_sp); 2285 CP(oss, s32, ss_onstack); 2286 error = copyout(&s32, uap->oss, sizeof(s32)); 2287 } 2288 return (error); 2289 } 2290 #endif 2291 2292 int 2293 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2294 { 2295 struct timespec32 rmt32, rqt32; 2296 struct timespec rmt, rqt; 2297 int error; 2298 2299 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2300 if (error) 2301 return (error); 2302 2303 CP(rqt32, rqt, tv_sec); 2304 CP(rqt32, rqt, tv_nsec); 2305 2306 if (uap->rmtp && 2307 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2308 return (EFAULT); 2309 error = kern_nanosleep(td, &rqt, &rmt); 2310 if (error && uap->rmtp) { 2311 int error2; 2312 2313 CP(rmt, rmt32, tv_sec); 2314 CP(rmt, rmt32, tv_nsec); 2315 2316 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2317 if (error2) 2318 error = error2; 2319 } 2320 return (error); 2321 } 2322 2323 int 2324 freebsd32_clock_gettime(struct thread *td, 2325 struct freebsd32_clock_gettime_args *uap) 2326 { 2327 struct timespec ats; 2328 struct timespec32 ats32; 2329 int error; 2330 2331 error = kern_clock_gettime(td, uap->clock_id, &ats); 2332 if (error == 0) { 2333 CP(ats, ats32, tv_sec); 2334 CP(ats, ats32, tv_nsec); 2335 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2336 } 2337 return (error); 2338 } 2339 2340 int 2341 freebsd32_clock_settime(struct thread *td, 2342 struct freebsd32_clock_settime_args *uap) 2343 { 2344 struct timespec ats; 2345 struct timespec32 ats32; 2346 int error; 2347 2348 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2349 if (error) 2350 return (error); 2351 CP(ats32, ats, tv_sec); 2352 CP(ats32, ats, tv_nsec); 2353 2354 return (kern_clock_settime(td, uap->clock_id, &ats)); 2355 } 2356 2357 int 2358 freebsd32_clock_getres(struct thread *td, 2359 struct freebsd32_clock_getres_args *uap) 2360 { 2361 struct timespec ts; 2362 struct timespec32 ts32; 2363 int error; 2364 2365 if (uap->tp == NULL) 2366 return (0); 2367 error = kern_clock_getres(td, uap->clock_id, &ts); 2368 if (error == 0) { 2369 CP(ts, ts32, tv_sec); 2370 CP(ts, ts32, tv_nsec); 2371 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2372 } 2373 return (error); 2374 } 2375 2376 int freebsd32_ktimer_create(struct thread *td, 2377 struct freebsd32_ktimer_create_args *uap) 2378 { 2379 struct sigevent32 ev32; 2380 struct sigevent ev, *evp; 2381 int error, id; 2382 2383 if (uap->evp == NULL) { 2384 evp = NULL; 2385 } else { 2386 evp = &ev; 2387 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2388 if (error != 0) 2389 return (error); 2390 error = convert_sigevent32(&ev32, &ev); 2391 if (error != 0) 2392 return (error); 2393 } 2394 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2395 if (error == 0) { 2396 error = copyout(&id, uap->timerid, sizeof(int)); 2397 if (error != 0) 2398 kern_ktimer_delete(td, id); 2399 } 2400 return (error); 2401 } 2402 2403 int 2404 freebsd32_ktimer_settime(struct thread *td, 2405 struct freebsd32_ktimer_settime_args *uap) 2406 { 2407 struct itimerspec32 val32, oval32; 2408 struct itimerspec val, oval, *ovalp; 2409 int error; 2410 2411 error = copyin(uap->value, &val32, sizeof(val32)); 2412 if (error != 0) 2413 return (error); 2414 ITS_CP(val32, val); 2415 ovalp = uap->ovalue != NULL ? &oval : NULL; 2416 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2417 if (error == 0 && uap->ovalue != NULL) { 2418 ITS_CP(oval, oval32); 2419 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2420 } 2421 return (error); 2422 } 2423 2424 int 2425 freebsd32_ktimer_gettime(struct thread *td, 2426 struct freebsd32_ktimer_gettime_args *uap) 2427 { 2428 struct itimerspec32 val32; 2429 struct itimerspec val; 2430 int error; 2431 2432 error = kern_ktimer_gettime(td, uap->timerid, &val); 2433 if (error == 0) { 2434 ITS_CP(val, val32); 2435 error = copyout(&val32, uap->value, sizeof(val32)); 2436 } 2437 return (error); 2438 } 2439 2440 int 2441 freebsd32_clock_getcpuclockid2(struct thread *td, 2442 struct freebsd32_clock_getcpuclockid2_args *uap) 2443 { 2444 clockid_t clk_id; 2445 int error; 2446 2447 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2448 uap->which, &clk_id); 2449 if (error == 0) 2450 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2451 return (error); 2452 } 2453 2454 int 2455 freebsd32_thr_new(struct thread *td, 2456 struct freebsd32_thr_new_args *uap) 2457 { 2458 struct thr_param32 param32; 2459 struct thr_param param; 2460 int error; 2461 2462 if (uap->param_size < 0 || 2463 uap->param_size > sizeof(struct thr_param32)) 2464 return (EINVAL); 2465 bzero(¶m, sizeof(struct thr_param)); 2466 bzero(¶m32, sizeof(struct thr_param32)); 2467 error = copyin(uap->param, ¶m32, uap->param_size); 2468 if (error != 0) 2469 return (error); 2470 param.start_func = PTRIN(param32.start_func); 2471 param.arg = PTRIN(param32.arg); 2472 param.stack_base = PTRIN(param32.stack_base); 2473 param.stack_size = param32.stack_size; 2474 param.tls_base = PTRIN(param32.tls_base); 2475 param.tls_size = param32.tls_size; 2476 param.child_tid = PTRIN(param32.child_tid); 2477 param.parent_tid = PTRIN(param32.parent_tid); 2478 param.flags = param32.flags; 2479 param.rtp = PTRIN(param32.rtp); 2480 param.spare[0] = PTRIN(param32.spare[0]); 2481 param.spare[1] = PTRIN(param32.spare[1]); 2482 param.spare[2] = PTRIN(param32.spare[2]); 2483 2484 return (kern_thr_new(td, ¶m)); 2485 } 2486 2487 int 2488 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2489 { 2490 struct timespec32 ts32; 2491 struct timespec ts, *tsp; 2492 int error; 2493 2494 error = 0; 2495 tsp = NULL; 2496 if (uap->timeout != NULL) { 2497 error = copyin((const void *)uap->timeout, (void *)&ts32, 2498 sizeof(struct timespec32)); 2499 if (error != 0) 2500 return (error); 2501 ts.tv_sec = ts32.tv_sec; 2502 ts.tv_nsec = ts32.tv_nsec; 2503 tsp = &ts; 2504 } 2505 return (kern_thr_suspend(td, tsp)); 2506 } 2507 2508 void 2509 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2510 { 2511 bzero(dst, sizeof(*dst)); 2512 dst->si_signo = src->si_signo; 2513 dst->si_errno = src->si_errno; 2514 dst->si_code = src->si_code; 2515 dst->si_pid = src->si_pid; 2516 dst->si_uid = src->si_uid; 2517 dst->si_status = src->si_status; 2518 dst->si_addr = (uintptr_t)src->si_addr; 2519 dst->si_value.sival_int = src->si_value.sival_int; 2520 dst->si_timerid = src->si_timerid; 2521 dst->si_overrun = src->si_overrun; 2522 } 2523 2524 int 2525 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2526 { 2527 struct timespec32 ts32; 2528 struct timespec ts; 2529 struct timespec *timeout; 2530 sigset_t set; 2531 ksiginfo_t ksi; 2532 struct siginfo32 si32; 2533 int error; 2534 2535 if (uap->timeout) { 2536 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2537 if (error) 2538 return (error); 2539 ts.tv_sec = ts32.tv_sec; 2540 ts.tv_nsec = ts32.tv_nsec; 2541 timeout = &ts; 2542 } else 2543 timeout = NULL; 2544 2545 error = copyin(uap->set, &set, sizeof(set)); 2546 if (error) 2547 return (error); 2548 2549 error = kern_sigtimedwait(td, set, &ksi, timeout); 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 2558 if (error == 0) 2559 td->td_retval[0] = ksi.ksi_signo; 2560 return (error); 2561 } 2562 2563 /* 2564 * MPSAFE 2565 */ 2566 int 2567 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2568 { 2569 ksiginfo_t ksi; 2570 struct siginfo32 si32; 2571 sigset_t set; 2572 int error; 2573 2574 error = copyin(uap->set, &set, sizeof(set)); 2575 if (error) 2576 return (error); 2577 2578 error = kern_sigtimedwait(td, set, &ksi, NULL); 2579 if (error) 2580 return (error); 2581 2582 if (uap->info) { 2583 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2584 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2585 } 2586 if (error == 0) 2587 td->td_retval[0] = ksi.ksi_signo; 2588 return (error); 2589 } 2590 2591 int 2592 freebsd32_cpuset_setid(struct thread *td, 2593 struct freebsd32_cpuset_setid_args *uap) 2594 { 2595 struct cpuset_setid_args ap; 2596 2597 ap.which = uap->which; 2598 ap.id = PAIR32TO64(id_t,uap->id); 2599 ap.setid = uap->setid; 2600 2601 return (sys_cpuset_setid(td, &ap)); 2602 } 2603 2604 int 2605 freebsd32_cpuset_getid(struct thread *td, 2606 struct freebsd32_cpuset_getid_args *uap) 2607 { 2608 struct cpuset_getid_args ap; 2609 2610 ap.level = uap->level; 2611 ap.which = uap->which; 2612 ap.id = PAIR32TO64(id_t,uap->id); 2613 ap.setid = uap->setid; 2614 2615 return (sys_cpuset_getid(td, &ap)); 2616 } 2617 2618 int 2619 freebsd32_cpuset_getaffinity(struct thread *td, 2620 struct freebsd32_cpuset_getaffinity_args *uap) 2621 { 2622 struct cpuset_getaffinity_args ap; 2623 2624 ap.level = uap->level; 2625 ap.which = uap->which; 2626 ap.id = PAIR32TO64(id_t,uap->id); 2627 ap.cpusetsize = uap->cpusetsize; 2628 ap.mask = uap->mask; 2629 2630 return (sys_cpuset_getaffinity(td, &ap)); 2631 } 2632 2633 int 2634 freebsd32_cpuset_setaffinity(struct thread *td, 2635 struct freebsd32_cpuset_setaffinity_args *uap) 2636 { 2637 struct cpuset_setaffinity_args ap; 2638 2639 ap.level = uap->level; 2640 ap.which = uap->which; 2641 ap.id = PAIR32TO64(id_t,uap->id); 2642 ap.cpusetsize = uap->cpusetsize; 2643 ap.mask = uap->mask; 2644 2645 return (sys_cpuset_setaffinity(td, &ap)); 2646 } 2647 2648 int 2649 freebsd32_nmount(struct thread *td, 2650 struct freebsd32_nmount_args /* { 2651 struct iovec *iovp; 2652 unsigned int iovcnt; 2653 int flags; 2654 } */ *uap) 2655 { 2656 struct uio *auio; 2657 uint64_t flags; 2658 int error; 2659 2660 /* 2661 * Mount flags are now 64-bits. On 32-bit archtectures only 2662 * 32-bits are passed in, but from here on everything handles 2663 * 64-bit flags correctly. 2664 */ 2665 flags = uap->flags; 2666 2667 AUDIT_ARG_FFLAGS(flags); 2668 2669 /* 2670 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2671 * userspace to set this flag, but we must filter it out if we want 2672 * MNT_UPDATE on the root file system to work. 2673 * MNT_ROOTFS should only be set by the kernel when mounting its 2674 * root file system. 2675 */ 2676 flags &= ~MNT_ROOTFS; 2677 2678 /* 2679 * check that we have an even number of iovec's 2680 * and that we have at least two options. 2681 */ 2682 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2683 return (EINVAL); 2684 2685 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2686 if (error) 2687 return (error); 2688 error = vfs_donmount(td, flags, auio); 2689 2690 free(auio, M_IOV); 2691 return error; 2692 } 2693 2694 #if 0 2695 int 2696 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2697 { 2698 struct yyy32 *p32, s32; 2699 struct yyy *p = NULL, s; 2700 struct xxx_arg ap; 2701 int error; 2702 2703 if (uap->zzz) { 2704 error = copyin(uap->zzz, &s32, sizeof(s32)); 2705 if (error) 2706 return (error); 2707 /* translate in */ 2708 p = &s; 2709 } 2710 error = kern_xxx(td, p); 2711 if (error) 2712 return (error); 2713 if (uap->zzz) { 2714 /* translate out */ 2715 error = copyout(&s32, p32, sizeof(s32)); 2716 } 2717 return (error); 2718 } 2719 #endif 2720 2721 int 2722 syscall32_register(int *offset, struct sysent *new_sysent, 2723 struct sysent *old_sysent) 2724 { 2725 if (*offset == NO_SYSCALL) { 2726 int i; 2727 2728 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2729 if (freebsd32_sysent[i].sy_call == 2730 (sy_call_t *)lkmnosys) 2731 break; 2732 if (i == SYS_MAXSYSCALL) 2733 return (ENFILE); 2734 *offset = i; 2735 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2736 return (EINVAL); 2737 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2738 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2739 return (EEXIST); 2740 2741 *old_sysent = freebsd32_sysent[*offset]; 2742 freebsd32_sysent[*offset] = *new_sysent; 2743 return 0; 2744 } 2745 2746 int 2747 syscall32_deregister(int *offset, struct sysent *old_sysent) 2748 { 2749 2750 if (*offset) 2751 freebsd32_sysent[*offset] = *old_sysent; 2752 return 0; 2753 } 2754 2755 int 2756 syscall32_module_handler(struct module *mod, int what, void *arg) 2757 { 2758 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2759 modspecific_t ms; 2760 int error; 2761 2762 switch (what) { 2763 case MOD_LOAD: 2764 error = syscall32_register(data->offset, data->new_sysent, 2765 &data->old_sysent); 2766 if (error) { 2767 /* Leave a mark so we know to safely unload below. */ 2768 data->offset = NULL; 2769 return error; 2770 } 2771 ms.intval = *data->offset; 2772 MOD_XLOCK; 2773 module_setspecific(mod, &ms); 2774 MOD_XUNLOCK; 2775 if (data->chainevh) 2776 error = data->chainevh(mod, what, data->chainarg); 2777 return (error); 2778 case MOD_UNLOAD: 2779 /* 2780 * MOD_LOAD failed, so just return without calling the 2781 * chained handler since we didn't pass along the MOD_LOAD 2782 * event. 2783 */ 2784 if (data->offset == NULL) 2785 return (0); 2786 if (data->chainevh) { 2787 error = data->chainevh(mod, what, data->chainarg); 2788 if (error) 2789 return (error); 2790 } 2791 error = syscall32_deregister(data->offset, &data->old_sysent); 2792 return (error); 2793 default: 2794 error = EOPNOTSUPP; 2795 if (data->chainevh) 2796 error = data->chainevh(mod, what, data->chainarg); 2797 return (error); 2798 } 2799 } 2800 2801 int 2802 syscall32_helper_register(struct syscall_helper_data *sd) 2803 { 2804 struct syscall_helper_data *sd1; 2805 int error; 2806 2807 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2808 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2809 &sd1->old_sysent); 2810 if (error != 0) { 2811 syscall32_helper_unregister(sd); 2812 return (error); 2813 } 2814 sd1->registered = 1; 2815 } 2816 return (0); 2817 } 2818 2819 int 2820 syscall32_helper_unregister(struct syscall_helper_data *sd) 2821 { 2822 struct syscall_helper_data *sd1; 2823 2824 for (sd1 = sd; sd1->registered != 0; sd1++) { 2825 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2826 sd1->registered = 0; 2827 } 2828 return (0); 2829 } 2830 2831 register_t * 2832 freebsd32_copyout_strings(struct image_params *imgp) 2833 { 2834 int argc, envc, i; 2835 u_int32_t *vectp; 2836 char *stringp; 2837 uintptr_t destp; 2838 u_int32_t *stack_base; 2839 struct freebsd32_ps_strings *arginfo; 2840 char canary[sizeof(long) * 8]; 2841 int32_t pagesizes32[MAXPAGESIZES]; 2842 size_t execpath_len; 2843 int szsigcode; 2844 2845 /* 2846 * Calculate string base and vector table pointers. 2847 * Also deal with signal trampoline code for this exec type. 2848 */ 2849 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2850 execpath_len = strlen(imgp->execpath) + 1; 2851 else 2852 execpath_len = 0; 2853 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2854 sv_psstrings; 2855 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2856 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2857 else 2858 szsigcode = 0; 2859 destp = (uintptr_t)arginfo; 2860 2861 /* 2862 * install sigcode 2863 */ 2864 if (szsigcode != 0) { 2865 destp -= szsigcode; 2866 destp = rounddown2(destp, sizeof(uint32_t)); 2867 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2868 szsigcode); 2869 } 2870 2871 /* 2872 * Copy the image path for the rtld. 2873 */ 2874 if (execpath_len != 0) { 2875 destp -= execpath_len; 2876 imgp->execpathp = destp; 2877 copyout(imgp->execpath, (void *)destp, execpath_len); 2878 } 2879 2880 /* 2881 * Prepare the canary for SSP. 2882 */ 2883 arc4rand(canary, sizeof(canary), 0); 2884 destp -= sizeof(canary); 2885 imgp->canary = destp; 2886 copyout(canary, (void *)destp, sizeof(canary)); 2887 imgp->canarylen = sizeof(canary); 2888 2889 /* 2890 * Prepare the pagesizes array. 2891 */ 2892 for (i = 0; i < MAXPAGESIZES; i++) 2893 pagesizes32[i] = (uint32_t)pagesizes[i]; 2894 destp -= sizeof(pagesizes32); 2895 destp = rounddown2(destp, sizeof(uint32_t)); 2896 imgp->pagesizes = destp; 2897 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2898 imgp->pagesizeslen = sizeof(pagesizes32); 2899 2900 destp -= ARG_MAX - imgp->args->stringspace; 2901 destp = rounddown2(destp, sizeof(uint32_t)); 2902 2903 /* 2904 * If we have a valid auxargs ptr, prepare some room 2905 * on the stack. 2906 */ 2907 if (imgp->auxargs) { 2908 /* 2909 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2910 * lower compatibility. 2911 */ 2912 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2913 : (AT_COUNT * 2); 2914 /* 2915 * The '+ 2' is for the null pointers at the end of each of 2916 * the arg and env vector sets,and imgp->auxarg_size is room 2917 * for argument of Runtime loader. 2918 */ 2919 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2920 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2921 sizeof(u_int32_t)); 2922 } else { 2923 /* 2924 * The '+ 2' is for the null pointers at the end of each of 2925 * the arg and env vector sets 2926 */ 2927 vectp = (u_int32_t *)(destp - (imgp->args->argc + 2928 imgp->args->envc + 2) * sizeof(u_int32_t)); 2929 } 2930 2931 /* 2932 * vectp also becomes our initial stack base 2933 */ 2934 stack_base = vectp; 2935 2936 stringp = imgp->args->begin_argv; 2937 argc = imgp->args->argc; 2938 envc = imgp->args->envc; 2939 /* 2940 * Copy out strings - arguments and environment. 2941 */ 2942 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2943 2944 /* 2945 * Fill in "ps_strings" struct for ps, w, etc. 2946 */ 2947 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2948 suword32(&arginfo->ps_nargvstr, argc); 2949 2950 /* 2951 * Fill in argument portion of vector table. 2952 */ 2953 for (; argc > 0; --argc) { 2954 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2955 while (*stringp++ != 0) 2956 destp++; 2957 destp++; 2958 } 2959 2960 /* a null vector table pointer separates the argp's from the envp's */ 2961 suword32(vectp++, 0); 2962 2963 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2964 suword32(&arginfo->ps_nenvstr, envc); 2965 2966 /* 2967 * Fill in environment portion of vector table. 2968 */ 2969 for (; envc > 0; --envc) { 2970 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2971 while (*stringp++ != 0) 2972 destp++; 2973 destp++; 2974 } 2975 2976 /* end of vector table is a null pointer */ 2977 suword32(vectp, 0); 2978 2979 return ((register_t *)stack_base); 2980 } 2981 2982 int 2983 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2984 { 2985 struct kld_file_stat stat; 2986 struct kld32_file_stat stat32; 2987 int error, version; 2988 2989 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2990 != 0) 2991 return (error); 2992 if (version != sizeof(struct kld32_file_stat_1) && 2993 version != sizeof(struct kld32_file_stat)) 2994 return (EINVAL); 2995 2996 error = kern_kldstat(td, uap->fileid, &stat); 2997 if (error != 0) 2998 return (error); 2999 3000 bcopy(&stat.name[0], &stat32.name[0], sizeof(stat.name)); 3001 CP(stat, stat32, refs); 3002 CP(stat, stat32, id); 3003 PTROUT_CP(stat, stat32, address); 3004 CP(stat, stat32, size); 3005 bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname)); 3006 return (copyout(&stat32, uap->stat, version)); 3007 } 3008 3009 int 3010 freebsd32_posix_fallocate(struct thread *td, 3011 struct freebsd32_posix_fallocate_args *uap) 3012 { 3013 3014 td->td_retval[0] = kern_posix_fallocate(td, uap->fd, 3015 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 3016 return (0); 3017 } 3018 3019 int 3020 freebsd32_posix_fadvise(struct thread *td, 3021 struct freebsd32_posix_fadvise_args *uap) 3022 { 3023 3024 td->td_retval[0] = kern_posix_fadvise(td, uap->fd, 3025 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len), 3026 uap->advice); 3027 return (0); 3028 } 3029 3030 int 3031 convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 3032 { 3033 3034 CP(*sig32, *sig, sigev_notify); 3035 switch (sig->sigev_notify) { 3036 case SIGEV_NONE: 3037 break; 3038 case SIGEV_THREAD_ID: 3039 CP(*sig32, *sig, sigev_notify_thread_id); 3040 /* FALLTHROUGH */ 3041 case SIGEV_SIGNAL: 3042 CP(*sig32, *sig, sigev_signo); 3043 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3044 break; 3045 case SIGEV_KEVENT: 3046 CP(*sig32, *sig, sigev_notify_kqueue); 3047 CP(*sig32, *sig, sigev_notify_kevent_flags); 3048 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3049 break; 3050 default: 3051 return (EINVAL); 3052 } 3053 return (0); 3054 } 3055 3056 int 3057 freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3058 { 3059 void *data; 3060 int error, flags; 3061 3062 switch (uap->com) { 3063 case PROC_SPROTECT: 3064 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3065 if (error) 3066 return (error); 3067 data = &flags; 3068 break; 3069 default: 3070 return (EINVAL); 3071 } 3072 return (kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3073 uap->com, data)); 3074 } 3075 3076 int 3077 freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 3078 { 3079 long tmp; 3080 3081 switch (uap->cmd) { 3082 /* 3083 * Do unsigned conversion for arg when operation 3084 * interprets it as flags or pointer. 3085 */ 3086 case F_SETLK_REMOTE: 3087 case F_SETLKW: 3088 case F_SETLK: 3089 case F_GETLK: 3090 case F_SETFD: 3091 case F_SETFL: 3092 tmp = (unsigned int)(uap->arg); 3093 break; 3094 default: 3095 tmp = uap->arg; 3096 break; 3097 } 3098 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 3099 }
Cache object: 99427500cfaea3ebaeba88a0f609f3e6
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