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/10.4/sys/compat/freebsd32/freebsd32_misc.c 325877 2017-11-15 22:50:47Z gordon $"); 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> 109 110 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, 248 struct freebsd4_freebsd32_getfsstat_args *uap) 249 { 250 struct statfs *buf, *sp; 251 struct statfs32 stat32; 252 size_t count, size; 253 int error; 254 255 count = uap->bufsize / sizeof(struct statfs32); 256 size = count * sizeof(struct statfs); 257 error = kern_getfsstat(td, &buf, size, UIO_SYSSPACE, uap->flags); 258 if (size > 0) { 259 count = td->td_retval[0]; 260 sp = buf; 261 while (count > 0 && error == 0) { 262 copy_statfs(sp, &stat32); 263 error = copyout(&stat32, uap->buf, sizeof(stat32)); 264 sp++; 265 uap->buf++; 266 count--; 267 } 268 free(buf, M_TEMP); 269 } 270 return (error); 271 } 272 #endif 273 274 int 275 freebsd32_sigaltstack(struct thread *td, 276 struct freebsd32_sigaltstack_args *uap) 277 { 278 struct sigaltstack32 s32; 279 struct sigaltstack ss, oss, *ssp; 280 int error; 281 282 if (uap->ss != NULL) { 283 error = copyin(uap->ss, &s32, sizeof(s32)); 284 if (error) 285 return (error); 286 PTRIN_CP(s32, ss, ss_sp); 287 CP(s32, ss, ss_size); 288 CP(s32, ss, ss_flags); 289 ssp = &ss; 290 } else 291 ssp = NULL; 292 error = kern_sigaltstack(td, ssp, &oss); 293 if (error == 0 && uap->oss != NULL) { 294 PTROUT_CP(oss, s32, ss_sp); 295 CP(oss, s32, ss_size); 296 CP(oss, s32, ss_flags); 297 error = copyout(&s32, uap->oss, sizeof(s32)); 298 } 299 return (error); 300 } 301 302 /* 303 * Custom version of exec_copyin_args() so that we can translate 304 * the pointers. 305 */ 306 int 307 freebsd32_exec_copyin_args(struct image_args *args, char *fname, 308 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 309 { 310 char *argp, *envp; 311 u_int32_t *p32, arg; 312 size_t length; 313 int error; 314 315 bzero(args, sizeof(*args)); 316 if (argv == NULL) 317 return (EFAULT); 318 319 /* 320 * Allocate demand-paged memory for the file name, argument, and 321 * environment strings. 322 */ 323 error = exec_alloc_args(args); 324 if (error != 0) 325 return (error); 326 327 /* 328 * Copy the file name. 329 */ 330 if (fname != NULL) { 331 args->fname = args->buf; 332 error = (segflg == UIO_SYSSPACE) ? 333 copystr(fname, args->fname, PATH_MAX, &length) : 334 copyinstr(fname, args->fname, PATH_MAX, &length); 335 if (error != 0) 336 goto err_exit; 337 } else 338 length = 0; 339 340 args->begin_argv = args->buf + length; 341 args->endp = args->begin_argv; 342 args->stringspace = ARG_MAX; 343 344 /* 345 * extract arguments first 346 */ 347 p32 = argv; 348 for (;;) { 349 error = copyin(p32++, &arg, sizeof(arg)); 350 if (error) 351 goto err_exit; 352 if (arg == 0) 353 break; 354 argp = PTRIN(arg); 355 error = copyinstr(argp, args->endp, args->stringspace, &length); 356 if (error) { 357 if (error == ENAMETOOLONG) 358 error = E2BIG; 359 goto err_exit; 360 } 361 args->stringspace -= length; 362 args->endp += length; 363 args->argc++; 364 } 365 366 args->begin_envv = args->endp; 367 368 /* 369 * extract environment strings 370 */ 371 if (envv) { 372 p32 = envv; 373 for (;;) { 374 error = copyin(p32++, &arg, sizeof(arg)); 375 if (error) 376 goto err_exit; 377 if (arg == 0) 378 break; 379 envp = PTRIN(arg); 380 error = copyinstr(envp, args->endp, args->stringspace, 381 &length); 382 if (error) { 383 if (error == ENAMETOOLONG) 384 error = E2BIG; 385 goto err_exit; 386 } 387 args->stringspace -= length; 388 args->endp += length; 389 args->envc++; 390 } 391 } 392 393 return (0); 394 395 err_exit: 396 exec_free_args(args); 397 return (error); 398 } 399 400 int 401 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 402 { 403 struct image_args eargs; 404 struct vmspace *oldvmspace; 405 int error; 406 407 error = pre_execve(td, &oldvmspace); 408 if (error != 0) 409 return (error); 410 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 411 uap->argv, uap->envv); 412 if (error == 0) 413 error = kern_execve(td, &eargs, NULL); 414 post_execve(td, error, oldvmspace); 415 return (error); 416 } 417 418 int 419 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 420 { 421 struct image_args eargs; 422 struct vmspace *oldvmspace; 423 int error; 424 425 error = pre_execve(td, &oldvmspace); 426 if (error != 0) 427 return (error); 428 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 429 uap->argv, uap->envv); 430 if (error == 0) { 431 eargs.fd = uap->fd; 432 error = kern_execve(td, &eargs, NULL); 433 } 434 post_execve(td, error, oldvmspace); 435 return (error); 436 } 437 438 #ifdef __ia64__ 439 static int 440 freebsd32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, 441 int prot, int fd, off_t pos) 442 { 443 vm_map_t map; 444 vm_map_entry_t entry; 445 int rv; 446 447 map = &td->td_proc->p_vmspace->vm_map; 448 if (fd != -1) 449 prot |= VM_PROT_WRITE; 450 451 if (vm_map_lookup_entry(map, start, &entry)) { 452 if ((entry->protection & prot) != prot) { 453 rv = vm_map_protect(map, 454 trunc_page(start), 455 round_page(end), 456 entry->protection | prot, 457 FALSE); 458 if (rv != KERN_SUCCESS) 459 return (EINVAL); 460 } 461 } else { 462 vm_offset_t addr = trunc_page(start); 463 rv = vm_map_find(map, NULL, 0, &addr, PAGE_SIZE, 0, 464 VMFS_NO_SPACE, prot, VM_PROT_ALL, 0); 465 if (rv != KERN_SUCCESS) 466 return (EINVAL); 467 } 468 469 if (fd != -1) { 470 struct pread_args r; 471 r.fd = fd; 472 r.buf = (void *) start; 473 r.nbyte = end - start; 474 r.offset = pos; 475 return (sys_pread(td, &r)); 476 } else { 477 while (start < end) { 478 subyte((void *) start, 0); 479 start++; 480 } 481 return (0); 482 } 483 } 484 #endif 485 486 int 487 freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 488 { 489 struct mprotect_args ap; 490 491 ap.addr = PTRIN(uap->addr); 492 ap.len = uap->len; 493 ap.prot = uap->prot; 494 #if defined(__amd64__) || defined(__ia64__) 495 if (i386_read_exec && (ap.prot & PROT_READ) != 0) 496 ap.prot |= PROT_EXEC; 497 #endif 498 return (sys_mprotect(td, &ap)); 499 } 500 501 int 502 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 503 { 504 struct mmap_args ap; 505 vm_offset_t addr = (vm_offset_t) uap->addr; 506 vm_size_t len = uap->len; 507 int prot = uap->prot; 508 int flags = uap->flags; 509 int fd = uap->fd; 510 off_t pos = PAIR32TO64(off_t,uap->pos); 511 #ifdef __ia64__ 512 vm_size_t pageoff; 513 int error; 514 515 /* 516 * Attempt to handle page size hassles. 517 */ 518 pageoff = (pos & PAGE_MASK); 519 if (flags & MAP_FIXED) { 520 vm_offset_t start, end; 521 start = addr; 522 end = addr + len; 523 524 if (start != trunc_page(start)) { 525 error = freebsd32_mmap_partial(td, start, 526 round_page(start), prot, 527 fd, pos); 528 if (fd != -1) 529 pos += round_page(start) - start; 530 start = round_page(start); 531 } 532 if (end != round_page(end)) { 533 vm_offset_t t = trunc_page(end); 534 error = freebsd32_mmap_partial(td, t, end, 535 prot, fd, 536 pos + t - start); 537 end = trunc_page(end); 538 } 539 if (end > start && fd != -1 && (pos & PAGE_MASK)) { 540 /* 541 * We can't map this region at all. The specified 542 * address doesn't have the same alignment as the file 543 * position. Fake the mapping by simply reading the 544 * entire region into memory. First we need to make 545 * sure the region exists. 546 */ 547 vm_map_t map; 548 struct pread_args r; 549 int rv; 550 551 prot |= VM_PROT_WRITE; 552 map = &td->td_proc->p_vmspace->vm_map; 553 rv = vm_map_remove(map, start, end); 554 if (rv != KERN_SUCCESS) 555 return (EINVAL); 556 rv = vm_map_find(map, NULL, 0, &start, end - start, 557 0, VMFS_NO_SPACE, prot, VM_PROT_ALL, 0); 558 if (rv != KERN_SUCCESS) 559 return (EINVAL); 560 r.fd = fd; 561 r.buf = (void *) start; 562 r.nbyte = end - start; 563 r.offset = pos; 564 error = sys_pread(td, &r); 565 if (error) 566 return (error); 567 568 td->td_retval[0] = addr; 569 return (0); 570 } 571 if (end == start) { 572 /* 573 * After dealing with the ragged ends, there 574 * might be none left. 575 */ 576 td->td_retval[0] = addr; 577 return (0); 578 } 579 addr = start; 580 len = end - start; 581 } 582 #endif 583 584 #if defined(__amd64__) || defined(__ia64__) 585 if (i386_read_exec && (prot & PROT_READ)) 586 prot |= PROT_EXEC; 587 #endif 588 589 ap.addr = (void *) addr; 590 ap.len = len; 591 ap.prot = prot; 592 ap.flags = flags; 593 ap.fd = fd; 594 ap.pos = pos; 595 596 return (sys_mmap(td, &ap)); 597 } 598 599 #ifdef COMPAT_FREEBSD6 600 int 601 freebsd6_freebsd32_mmap(struct thread *td, 602 struct freebsd6_freebsd32_mmap_args *uap) 603 { 604 struct freebsd32_mmap_args ap; 605 606 ap.addr = uap->addr; 607 ap.len = uap->len; 608 ap.prot = uap->prot; 609 ap.flags = uap->flags; 610 ap.fd = uap->fd; 611 ap.pos1 = uap->pos1; 612 ap.pos2 = uap->pos2; 613 614 return (freebsd32_mmap(td, &ap)); 615 } 616 #endif 617 618 int 619 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 620 { 621 struct itimerval itv, oitv, *itvp; 622 struct itimerval32 i32; 623 int error; 624 625 if (uap->itv != NULL) { 626 error = copyin(uap->itv, &i32, sizeof(i32)); 627 if (error) 628 return (error); 629 TV_CP(i32, itv, it_interval); 630 TV_CP(i32, itv, it_value); 631 itvp = &itv; 632 } else 633 itvp = NULL; 634 error = kern_setitimer(td, uap->which, itvp, &oitv); 635 if (error || uap->oitv == NULL) 636 return (error); 637 TV_CP(oitv, i32, it_interval); 638 TV_CP(oitv, i32, it_value); 639 return (copyout(&i32, uap->oitv, sizeof(i32))); 640 } 641 642 int 643 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 644 { 645 struct itimerval itv; 646 struct itimerval32 i32; 647 int error; 648 649 error = kern_getitimer(td, uap->which, &itv); 650 if (error || uap->itv == NULL) 651 return (error); 652 TV_CP(itv, i32, it_interval); 653 TV_CP(itv, i32, it_value); 654 return (copyout(&i32, uap->itv, sizeof(i32))); 655 } 656 657 int 658 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 659 { 660 struct timeval32 tv32; 661 struct timeval tv, *tvp; 662 int error; 663 664 if (uap->tv != NULL) { 665 error = copyin(uap->tv, &tv32, sizeof(tv32)); 666 if (error) 667 return (error); 668 CP(tv32, tv, tv_sec); 669 CP(tv32, tv, tv_usec); 670 tvp = &tv; 671 } else 672 tvp = NULL; 673 /* 674 * XXX Do pointers need PTRIN()? 675 */ 676 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 677 sizeof(int32_t) * 8)); 678 } 679 680 int 681 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 682 { 683 struct timespec32 ts32; 684 struct timespec ts; 685 struct timeval tv, *tvp; 686 sigset_t set, *uset; 687 int error; 688 689 if (uap->ts != NULL) { 690 error = copyin(uap->ts, &ts32, sizeof(ts32)); 691 if (error != 0) 692 return (error); 693 CP(ts32, ts, tv_sec); 694 CP(ts32, ts, tv_nsec); 695 TIMESPEC_TO_TIMEVAL(&tv, &ts); 696 tvp = &tv; 697 } else 698 tvp = NULL; 699 if (uap->sm != NULL) { 700 error = copyin(uap->sm, &set, sizeof(set)); 701 if (error != 0) 702 return (error); 703 uset = &set; 704 } else 705 uset = NULL; 706 /* 707 * XXX Do pointers need PTRIN()? 708 */ 709 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 710 uset, sizeof(int32_t) * 8); 711 return (error); 712 } 713 714 /* 715 * Copy 'count' items into the destination list pointed to by uap->eventlist. 716 */ 717 static int 718 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 719 { 720 struct freebsd32_kevent_args *uap; 721 struct kevent32 ks32[KQ_NEVENTS]; 722 int i, error = 0; 723 724 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 725 uap = (struct freebsd32_kevent_args *)arg; 726 727 for (i = 0; i < count; i++) { 728 CP(kevp[i], ks32[i], ident); 729 CP(kevp[i], ks32[i], filter); 730 CP(kevp[i], ks32[i], flags); 731 CP(kevp[i], ks32[i], fflags); 732 CP(kevp[i], ks32[i], data); 733 PTROUT_CP(kevp[i], ks32[i], udata); 734 } 735 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 736 if (error == 0) 737 uap->eventlist += count; 738 return (error); 739 } 740 741 /* 742 * Copy 'count' items from the list pointed to by uap->changelist. 743 */ 744 static int 745 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 746 { 747 struct freebsd32_kevent_args *uap; 748 struct kevent32 ks32[KQ_NEVENTS]; 749 int i, error = 0; 750 751 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 752 uap = (struct freebsd32_kevent_args *)arg; 753 754 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 755 if (error) 756 goto done; 757 uap->changelist += count; 758 759 for (i = 0; i < count; i++) { 760 CP(ks32[i], kevp[i], ident); 761 CP(ks32[i], kevp[i], filter); 762 CP(ks32[i], kevp[i], flags); 763 CP(ks32[i], kevp[i], fflags); 764 CP(ks32[i], kevp[i], data); 765 PTRIN_CP(ks32[i], kevp[i], udata); 766 } 767 done: 768 return (error); 769 } 770 771 int 772 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 773 { 774 struct timespec32 ts32; 775 struct timespec ts, *tsp; 776 struct kevent_copyops k_ops = { uap, 777 freebsd32_kevent_copyout, 778 freebsd32_kevent_copyin}; 779 int error; 780 781 782 if (uap->timeout) { 783 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 784 if (error) 785 return (error); 786 CP(ts32, ts, tv_sec); 787 CP(ts32, ts, tv_nsec); 788 tsp = &ts; 789 } else 790 tsp = NULL; 791 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 792 &k_ops, tsp); 793 return (error); 794 } 795 796 int 797 freebsd32_gettimeofday(struct thread *td, 798 struct freebsd32_gettimeofday_args *uap) 799 { 800 struct timeval atv; 801 struct timeval32 atv32; 802 struct timezone rtz; 803 int error = 0; 804 805 if (uap->tp) { 806 microtime(&atv); 807 CP(atv, atv32, tv_sec); 808 CP(atv, atv32, tv_usec); 809 error = copyout(&atv32, uap->tp, sizeof (atv32)); 810 } 811 if (error == 0 && uap->tzp != NULL) { 812 rtz.tz_minuteswest = tz_minuteswest; 813 rtz.tz_dsttime = tz_dsttime; 814 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 815 } 816 return (error); 817 } 818 819 int 820 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 821 { 822 struct rusage32 s32; 823 struct rusage s; 824 int error; 825 826 error = kern_getrusage(td, uap->who, &s); 827 if (error) 828 return (error); 829 if (uap->rusage != NULL) { 830 freebsd32_rusage_out(&s, &s32); 831 error = copyout(&s32, uap->rusage, sizeof(s32)); 832 } 833 return (error); 834 } 835 836 static int 837 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 838 { 839 struct iovec32 iov32; 840 struct iovec *iov; 841 struct uio *uio; 842 u_int iovlen; 843 int error, i; 844 845 *uiop = NULL; 846 if (iovcnt > UIO_MAXIOV) 847 return (EINVAL); 848 iovlen = iovcnt * sizeof(struct iovec); 849 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 850 iov = (struct iovec *)(uio + 1); 851 for (i = 0; i < iovcnt; i++) { 852 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 853 if (error) { 854 free(uio, M_IOV); 855 return (error); 856 } 857 iov[i].iov_base = PTRIN(iov32.iov_base); 858 iov[i].iov_len = iov32.iov_len; 859 } 860 uio->uio_iov = iov; 861 uio->uio_iovcnt = iovcnt; 862 uio->uio_segflg = UIO_USERSPACE; 863 uio->uio_offset = -1; 864 uio->uio_resid = 0; 865 for (i = 0; i < iovcnt; i++) { 866 if (iov->iov_len > INT_MAX - uio->uio_resid) { 867 free(uio, M_IOV); 868 return (EINVAL); 869 } 870 uio->uio_resid += iov->iov_len; 871 iov++; 872 } 873 *uiop = uio; 874 return (0); 875 } 876 877 int 878 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 879 { 880 struct uio *auio; 881 int error; 882 883 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 884 if (error) 885 return (error); 886 error = kern_readv(td, uap->fd, auio); 887 free(auio, M_IOV); 888 return (error); 889 } 890 891 int 892 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 893 { 894 struct uio *auio; 895 int error; 896 897 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 898 if (error) 899 return (error); 900 error = kern_writev(td, uap->fd, auio); 901 free(auio, M_IOV); 902 return (error); 903 } 904 905 int 906 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 907 { 908 struct uio *auio; 909 int error; 910 911 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 912 if (error) 913 return (error); 914 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 915 free(auio, M_IOV); 916 return (error); 917 } 918 919 int 920 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 921 { 922 struct uio *auio; 923 int error; 924 925 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 926 if (error) 927 return (error); 928 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 929 free(auio, M_IOV); 930 return (error); 931 } 932 933 int 934 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 935 int error) 936 { 937 struct iovec32 iov32; 938 struct iovec *iov; 939 u_int iovlen; 940 int i; 941 942 *iovp = NULL; 943 if (iovcnt > UIO_MAXIOV) 944 return (error); 945 iovlen = iovcnt * sizeof(struct iovec); 946 iov = malloc(iovlen, M_IOV, M_WAITOK); 947 for (i = 0; i < iovcnt; i++) { 948 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 949 if (error) { 950 free(iov, M_IOV); 951 return (error); 952 } 953 iov[i].iov_base = PTRIN(iov32.iov_base); 954 iov[i].iov_len = iov32.iov_len; 955 } 956 *iovp = iov; 957 return (0); 958 } 959 960 static int 961 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 962 { 963 struct msghdr32 m32; 964 int error; 965 966 error = copyin(msg32, &m32, sizeof(m32)); 967 if (error) 968 return (error); 969 msg->msg_name = PTRIN(m32.msg_name); 970 msg->msg_namelen = m32.msg_namelen; 971 msg->msg_iov = PTRIN(m32.msg_iov); 972 msg->msg_iovlen = m32.msg_iovlen; 973 msg->msg_control = PTRIN(m32.msg_control); 974 msg->msg_controllen = m32.msg_controllen; 975 msg->msg_flags = m32.msg_flags; 976 return (0); 977 } 978 979 static int 980 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 981 { 982 struct msghdr32 m32; 983 int error; 984 985 m32.msg_name = PTROUT(msg->msg_name); 986 m32.msg_namelen = msg->msg_namelen; 987 m32.msg_iov = PTROUT(msg->msg_iov); 988 m32.msg_iovlen = msg->msg_iovlen; 989 m32.msg_control = PTROUT(msg->msg_control); 990 m32.msg_controllen = msg->msg_controllen; 991 m32.msg_flags = msg->msg_flags; 992 error = copyout(&m32, msg32, sizeof(m32)); 993 return (error); 994 } 995 996 #ifndef __mips__ 997 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 998 #else 999 #define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 1000 #endif 1001 #define FREEBSD32_ALIGN(p) \ 1002 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 1003 #define FREEBSD32_CMSG_SPACE(l) \ 1004 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 1005 1006 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 1007 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 1008 static int 1009 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 1010 { 1011 struct cmsghdr *cm; 1012 void *data; 1013 socklen_t clen, datalen; 1014 int error; 1015 caddr_t ctlbuf; 1016 int len, maxlen, copylen; 1017 struct mbuf *m; 1018 error = 0; 1019 1020 len = msg->msg_controllen; 1021 maxlen = msg->msg_controllen; 1022 msg->msg_controllen = 0; 1023 1024 m = control; 1025 ctlbuf = msg->msg_control; 1026 1027 while (m && len > 0) { 1028 cm = mtod(m, struct cmsghdr *); 1029 clen = m->m_len; 1030 1031 while (cm != NULL) { 1032 1033 if (sizeof(struct cmsghdr) > clen || 1034 cm->cmsg_len > clen) { 1035 error = EINVAL; 1036 break; 1037 } 1038 1039 data = CMSG_DATA(cm); 1040 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 1041 1042 /* Adjust message length */ 1043 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 1044 datalen; 1045 1046 1047 /* Copy cmsghdr */ 1048 copylen = sizeof(struct cmsghdr); 1049 if (len < copylen) { 1050 msg->msg_flags |= MSG_CTRUNC; 1051 copylen = len; 1052 } 1053 1054 error = copyout(cm,ctlbuf,copylen); 1055 if (error) 1056 goto exit; 1057 1058 ctlbuf += FREEBSD32_ALIGN(copylen); 1059 len -= FREEBSD32_ALIGN(copylen); 1060 1061 if (len <= 0) 1062 break; 1063 1064 /* Copy data */ 1065 copylen = datalen; 1066 if (len < copylen) { 1067 msg->msg_flags |= MSG_CTRUNC; 1068 copylen = len; 1069 } 1070 1071 error = copyout(data,ctlbuf,copylen); 1072 if (error) 1073 goto exit; 1074 1075 ctlbuf += FREEBSD32_ALIGN(copylen); 1076 len -= FREEBSD32_ALIGN(copylen); 1077 1078 if (CMSG_SPACE(datalen) < clen) { 1079 clen -= CMSG_SPACE(datalen); 1080 cm = (struct cmsghdr *) 1081 ((caddr_t)cm + CMSG_SPACE(datalen)); 1082 } else { 1083 clen = 0; 1084 cm = NULL; 1085 } 1086 } 1087 m = m->m_next; 1088 } 1089 1090 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 1091 1092 exit: 1093 return (error); 1094 1095 } 1096 1097 int 1098 freebsd32_recvmsg(td, uap) 1099 struct thread *td; 1100 struct freebsd32_recvmsg_args /* { 1101 int s; 1102 struct msghdr32 *msg; 1103 int flags; 1104 } */ *uap; 1105 { 1106 struct msghdr msg; 1107 struct msghdr32 m32; 1108 struct iovec *uiov, *iov; 1109 struct mbuf *control = NULL; 1110 struct mbuf **controlp; 1111 1112 int error; 1113 error = copyin(uap->msg, &m32, sizeof(m32)); 1114 if (error) 1115 return (error); 1116 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1117 if (error) 1118 return (error); 1119 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1120 EMSGSIZE); 1121 if (error) 1122 return (error); 1123 msg.msg_flags = uap->flags; 1124 uiov = msg.msg_iov; 1125 msg.msg_iov = iov; 1126 1127 controlp = (msg.msg_control != NULL) ? &control : NULL; 1128 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1129 if (error == 0) { 1130 msg.msg_iov = uiov; 1131 1132 if (control != NULL) 1133 error = freebsd32_copy_msg_out(&msg, control); 1134 else 1135 msg.msg_controllen = 0; 1136 1137 if (error == 0) 1138 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1139 } 1140 free(iov, M_IOV); 1141 1142 if (control != NULL) 1143 m_freem(control); 1144 1145 return (error); 1146 } 1147 1148 /* 1149 * Copy-in the array of control messages constructed using alignment 1150 * and padding suitable for a 32-bit environment and construct an 1151 * mbuf using alignment and padding suitable for a 64-bit kernel. 1152 * The alignment and padding are defined indirectly by CMSG_DATA(), 1153 * CMSG_SPACE() and CMSG_LEN(). 1154 */ 1155 static int 1156 freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1157 { 1158 struct mbuf *m; 1159 void *md; 1160 u_int idx, len, msglen; 1161 int error; 1162 1163 buflen = FREEBSD32_ALIGN(buflen); 1164 1165 if (buflen > MCLBYTES) 1166 return (EINVAL); 1167 1168 /* 1169 * Iterate over the buffer and get the length of each message 1170 * in there. This has 32-bit alignment and padding. Use it to 1171 * determine the length of these messages when using 64-bit 1172 * alignment and padding. 1173 */ 1174 idx = 0; 1175 len = 0; 1176 while (idx < buflen) { 1177 error = copyin(buf + idx, &msglen, sizeof(msglen)); 1178 if (error) 1179 return (error); 1180 if (msglen < sizeof(struct cmsghdr)) 1181 return (EINVAL); 1182 msglen = FREEBSD32_ALIGN(msglen); 1183 if (idx + msglen > buflen) 1184 return (EINVAL); 1185 idx += msglen; 1186 msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) - 1187 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1188 len += CMSG_ALIGN(msglen); 1189 } 1190 1191 if (len > MCLBYTES) 1192 return (EINVAL); 1193 1194 m = m_get(M_WAITOK, MT_CONTROL); 1195 if (len > MLEN) 1196 MCLGET(m, M_WAITOK); 1197 m->m_len = len; 1198 1199 md = mtod(m, void *); 1200 while (buflen > 0) { 1201 error = copyin(buf, md, sizeof(struct cmsghdr)); 1202 if (error) 1203 break; 1204 msglen = *(u_int *)md; 1205 msglen = FREEBSD32_ALIGN(msglen); 1206 1207 /* Modify the message length to account for alignment. */ 1208 *(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) - 1209 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1210 1211 md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr)); 1212 buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1213 buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1214 1215 msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1216 if (msglen > 0) { 1217 error = copyin(buf, md, msglen); 1218 if (error) 1219 break; 1220 md = (char *)md + CMSG_ALIGN(msglen); 1221 buf += msglen; 1222 buflen -= msglen; 1223 } 1224 } 1225 1226 if (error) 1227 m_free(m); 1228 else 1229 *mp = m; 1230 return (error); 1231 } 1232 1233 int 1234 freebsd32_sendmsg(struct thread *td, 1235 struct freebsd32_sendmsg_args *uap) 1236 { 1237 struct msghdr msg; 1238 struct msghdr32 m32; 1239 struct iovec *iov; 1240 struct mbuf *control = NULL; 1241 struct sockaddr *to = NULL; 1242 int error; 1243 1244 error = copyin(uap->msg, &m32, sizeof(m32)); 1245 if (error) 1246 return (error); 1247 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1248 if (error) 1249 return (error); 1250 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1251 EMSGSIZE); 1252 if (error) 1253 return (error); 1254 msg.msg_iov = iov; 1255 if (msg.msg_name != NULL) { 1256 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1257 if (error) { 1258 to = NULL; 1259 goto out; 1260 } 1261 msg.msg_name = to; 1262 } 1263 1264 if (msg.msg_control) { 1265 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1266 error = EINVAL; 1267 goto out; 1268 } 1269 1270 error = freebsd32_copyin_control(&control, msg.msg_control, 1271 msg.msg_controllen); 1272 if (error) 1273 goto out; 1274 1275 msg.msg_control = NULL; 1276 msg.msg_controllen = 0; 1277 } 1278 1279 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1280 UIO_USERSPACE); 1281 1282 out: 1283 free(iov, M_IOV); 1284 if (to) 1285 free(to, M_SONAME); 1286 return (error); 1287 } 1288 1289 int 1290 freebsd32_recvfrom(struct thread *td, 1291 struct freebsd32_recvfrom_args *uap) 1292 { 1293 struct msghdr msg; 1294 struct iovec aiov; 1295 int error; 1296 1297 if (uap->fromlenaddr) { 1298 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1299 sizeof(msg.msg_namelen)); 1300 if (error) 1301 return (error); 1302 } else { 1303 msg.msg_namelen = 0; 1304 } 1305 1306 msg.msg_name = PTRIN(uap->from); 1307 msg.msg_iov = &aiov; 1308 msg.msg_iovlen = 1; 1309 aiov.iov_base = PTRIN(uap->buf); 1310 aiov.iov_len = uap->len; 1311 msg.msg_control = NULL; 1312 msg.msg_flags = uap->flags; 1313 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1314 if (error == 0 && uap->fromlenaddr) 1315 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1316 sizeof (msg.msg_namelen)); 1317 return (error); 1318 } 1319 1320 int 1321 freebsd32_settimeofday(struct thread *td, 1322 struct freebsd32_settimeofday_args *uap) 1323 { 1324 struct timeval32 tv32; 1325 struct timeval tv, *tvp; 1326 struct timezone tz, *tzp; 1327 int error; 1328 1329 if (uap->tv) { 1330 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1331 if (error) 1332 return (error); 1333 CP(tv32, tv, tv_sec); 1334 CP(tv32, tv, tv_usec); 1335 tvp = &tv; 1336 } else 1337 tvp = NULL; 1338 if (uap->tzp) { 1339 error = copyin(uap->tzp, &tz, sizeof(tz)); 1340 if (error) 1341 return (error); 1342 tzp = &tz; 1343 } else 1344 tzp = NULL; 1345 return (kern_settimeofday(td, tvp, tzp)); 1346 } 1347 1348 int 1349 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1350 { 1351 struct timeval32 s32[2]; 1352 struct timeval s[2], *sp; 1353 int error; 1354 1355 if (uap->tptr != NULL) { 1356 error = copyin(uap->tptr, s32, sizeof(s32)); 1357 if (error) 1358 return (error); 1359 CP(s32[0], s[0], tv_sec); 1360 CP(s32[0], s[0], tv_usec); 1361 CP(s32[1], s[1], tv_sec); 1362 CP(s32[1], s[1], tv_usec); 1363 sp = s; 1364 } else 1365 sp = NULL; 1366 return (kern_utimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1367 } 1368 1369 int 1370 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1371 { 1372 struct timeval32 s32[2]; 1373 struct timeval s[2], *sp; 1374 int error; 1375 1376 if (uap->tptr != NULL) { 1377 error = copyin(uap->tptr, s32, sizeof(s32)); 1378 if (error) 1379 return (error); 1380 CP(s32[0], s[0], tv_sec); 1381 CP(s32[0], s[0], tv_usec); 1382 CP(s32[1], s[1], tv_sec); 1383 CP(s32[1], s[1], tv_usec); 1384 sp = s; 1385 } else 1386 sp = NULL; 1387 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1388 } 1389 1390 int 1391 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1392 { 1393 struct timeval32 s32[2]; 1394 struct timeval s[2], *sp; 1395 int error; 1396 1397 if (uap->tptr != NULL) { 1398 error = copyin(uap->tptr, s32, sizeof(s32)); 1399 if (error) 1400 return (error); 1401 CP(s32[0], s[0], tv_sec); 1402 CP(s32[0], s[0], tv_usec); 1403 CP(s32[1], s[1], tv_sec); 1404 CP(s32[1], s[1], tv_usec); 1405 sp = s; 1406 } else 1407 sp = NULL; 1408 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1409 } 1410 1411 int 1412 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1413 { 1414 struct timeval32 s32[2]; 1415 struct timeval s[2], *sp; 1416 int error; 1417 1418 if (uap->times != NULL) { 1419 error = copyin(uap->times, s32, sizeof(s32)); 1420 if (error) 1421 return (error); 1422 CP(s32[0], s[0], tv_sec); 1423 CP(s32[0], s[0], tv_usec); 1424 CP(s32[1], s[1], tv_sec); 1425 CP(s32[1], s[1], tv_usec); 1426 sp = s; 1427 } else 1428 sp = NULL; 1429 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1430 sp, UIO_SYSSPACE)); 1431 } 1432 1433 int 1434 freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap) 1435 { 1436 struct timespec32 ts32[2]; 1437 struct timespec ts[2], *tsp; 1438 int error; 1439 1440 if (uap->times != NULL) { 1441 error = copyin(uap->times, ts32, sizeof(ts32)); 1442 if (error) 1443 return (error); 1444 CP(ts32[0], ts[0], tv_sec); 1445 CP(ts32[0], ts[0], tv_nsec); 1446 CP(ts32[1], ts[1], tv_sec); 1447 CP(ts32[1], ts[1], tv_nsec); 1448 tsp = ts; 1449 } else 1450 tsp = NULL; 1451 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE)); 1452 } 1453 1454 int 1455 freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap) 1456 { 1457 struct timespec32 ts32[2]; 1458 struct timespec ts[2], *tsp; 1459 int error; 1460 1461 if (uap->times != NULL) { 1462 error = copyin(uap->times, ts32, sizeof(ts32)); 1463 if (error) 1464 return (error); 1465 CP(ts32[0], ts[0], tv_sec); 1466 CP(ts32[0], ts[0], tv_nsec); 1467 CP(ts32[1], ts[1], tv_sec); 1468 CP(ts32[1], ts[1], tv_nsec); 1469 tsp = ts; 1470 } else 1471 tsp = NULL; 1472 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE, 1473 tsp, UIO_SYSSPACE, uap->flag)); 1474 } 1475 1476 int 1477 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1478 { 1479 struct timeval32 tv32; 1480 struct timeval delta, olddelta, *deltap; 1481 int error; 1482 1483 if (uap->delta) { 1484 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1485 if (error) 1486 return (error); 1487 CP(tv32, delta, tv_sec); 1488 CP(tv32, delta, tv_usec); 1489 deltap = δ 1490 } else 1491 deltap = NULL; 1492 error = kern_adjtime(td, deltap, &olddelta); 1493 if (uap->olddelta && error == 0) { 1494 CP(olddelta, tv32, tv_sec); 1495 CP(olddelta, tv32, tv_usec); 1496 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1497 } 1498 return (error); 1499 } 1500 1501 #ifdef COMPAT_FREEBSD4 1502 int 1503 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1504 { 1505 struct statfs32 s32; 1506 struct statfs s; 1507 int error; 1508 1509 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1510 if (error) 1511 return (error); 1512 copy_statfs(&s, &s32); 1513 return (copyout(&s32, uap->buf, sizeof(s32))); 1514 } 1515 #endif 1516 1517 #ifdef COMPAT_FREEBSD4 1518 int 1519 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1520 { 1521 struct statfs32 s32; 1522 struct statfs s; 1523 int error; 1524 1525 error = kern_fstatfs(td, uap->fd, &s); 1526 if (error) 1527 return (error); 1528 copy_statfs(&s, &s32); 1529 return (copyout(&s32, uap->buf, sizeof(s32))); 1530 } 1531 #endif 1532 1533 #ifdef COMPAT_FREEBSD4 1534 int 1535 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1536 { 1537 struct statfs32 s32; 1538 struct statfs s; 1539 fhandle_t fh; 1540 int error; 1541 1542 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1543 return (error); 1544 error = kern_fhstatfs(td, fh, &s); 1545 if (error) 1546 return (error); 1547 copy_statfs(&s, &s32); 1548 return (copyout(&s32, uap->buf, sizeof(s32))); 1549 } 1550 #endif 1551 1552 int 1553 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1554 { 1555 struct pread_args ap; 1556 1557 ap.fd = uap->fd; 1558 ap.buf = uap->buf; 1559 ap.nbyte = uap->nbyte; 1560 ap.offset = PAIR32TO64(off_t,uap->offset); 1561 return (sys_pread(td, &ap)); 1562 } 1563 1564 int 1565 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1566 { 1567 struct pwrite_args ap; 1568 1569 ap.fd = uap->fd; 1570 ap.buf = uap->buf; 1571 ap.nbyte = uap->nbyte; 1572 ap.offset = PAIR32TO64(off_t,uap->offset); 1573 return (sys_pwrite(td, &ap)); 1574 } 1575 1576 #ifdef COMPAT_43 1577 int 1578 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1579 { 1580 struct lseek_args nuap; 1581 1582 nuap.fd = uap->fd; 1583 nuap.offset = uap->offset; 1584 nuap.whence = uap->whence; 1585 return (sys_lseek(td, &nuap)); 1586 } 1587 #endif 1588 1589 int 1590 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1591 { 1592 int error; 1593 struct lseek_args ap; 1594 off_t pos; 1595 1596 ap.fd = uap->fd; 1597 ap.offset = PAIR32TO64(off_t,uap->offset); 1598 ap.whence = uap->whence; 1599 error = sys_lseek(td, &ap); 1600 /* Expand the quad return into two parts for eax and edx */ 1601 pos = *(off_t *)(td->td_retval); 1602 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1603 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1604 return error; 1605 } 1606 1607 int 1608 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1609 { 1610 struct truncate_args ap; 1611 1612 ap.path = uap->path; 1613 ap.length = PAIR32TO64(off_t,uap->length); 1614 return (sys_truncate(td, &ap)); 1615 } 1616 1617 int 1618 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1619 { 1620 struct ftruncate_args ap; 1621 1622 ap.fd = uap->fd; 1623 ap.length = PAIR32TO64(off_t,uap->length); 1624 return (sys_ftruncate(td, &ap)); 1625 } 1626 1627 #ifdef COMPAT_43 1628 int 1629 ofreebsd32_getdirentries(struct thread *td, 1630 struct ofreebsd32_getdirentries_args *uap) 1631 { 1632 struct ogetdirentries_args ap; 1633 int error; 1634 long loff; 1635 int32_t loff_cut; 1636 1637 ap.fd = uap->fd; 1638 ap.buf = uap->buf; 1639 ap.count = uap->count; 1640 ap.basep = NULL; 1641 error = kern_ogetdirentries(td, &ap, &loff); 1642 if (error == 0) { 1643 loff_cut = loff; 1644 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1645 } 1646 return (error); 1647 } 1648 #endif 1649 1650 int 1651 freebsd32_getdirentries(struct thread *td, 1652 struct freebsd32_getdirentries_args *uap) 1653 { 1654 long base; 1655 int32_t base32; 1656 int error; 1657 1658 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1659 NULL, UIO_USERSPACE); 1660 if (error) 1661 return (error); 1662 if (uap->basep != NULL) { 1663 base32 = base; 1664 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1665 } 1666 return (error); 1667 } 1668 1669 #ifdef COMPAT_FREEBSD6 1670 /* versions with the 'int pad' argument */ 1671 int 1672 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1673 { 1674 struct pread_args ap; 1675 1676 ap.fd = uap->fd; 1677 ap.buf = uap->buf; 1678 ap.nbyte = uap->nbyte; 1679 ap.offset = PAIR32TO64(off_t,uap->offset); 1680 return (sys_pread(td, &ap)); 1681 } 1682 1683 int 1684 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1685 { 1686 struct pwrite_args ap; 1687 1688 ap.fd = uap->fd; 1689 ap.buf = uap->buf; 1690 ap.nbyte = uap->nbyte; 1691 ap.offset = PAIR32TO64(off_t,uap->offset); 1692 return (sys_pwrite(td, &ap)); 1693 } 1694 1695 int 1696 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1697 { 1698 int error; 1699 struct lseek_args ap; 1700 off_t pos; 1701 1702 ap.fd = uap->fd; 1703 ap.offset = PAIR32TO64(off_t,uap->offset); 1704 ap.whence = uap->whence; 1705 error = sys_lseek(td, &ap); 1706 /* Expand the quad return into two parts for eax and edx */ 1707 pos = *(off_t *)(td->td_retval); 1708 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1709 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1710 return error; 1711 } 1712 1713 int 1714 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1715 { 1716 struct truncate_args ap; 1717 1718 ap.path = uap->path; 1719 ap.length = PAIR32TO64(off_t,uap->length); 1720 return (sys_truncate(td, &ap)); 1721 } 1722 1723 int 1724 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1725 { 1726 struct ftruncate_args ap; 1727 1728 ap.fd = uap->fd; 1729 ap.length = PAIR32TO64(off_t,uap->length); 1730 return (sys_ftruncate(td, &ap)); 1731 } 1732 #endif /* COMPAT_FREEBSD6 */ 1733 1734 struct sf_hdtr32 { 1735 uint32_t headers; 1736 int hdr_cnt; 1737 uint32_t trailers; 1738 int trl_cnt; 1739 }; 1740 1741 static int 1742 freebsd32_do_sendfile(struct thread *td, 1743 struct freebsd32_sendfile_args *uap, int compat) 1744 { 1745 struct sf_hdtr32 hdtr32; 1746 struct sf_hdtr hdtr; 1747 struct uio *hdr_uio, *trl_uio; 1748 struct iovec32 *iov32; 1749 struct file *fp; 1750 cap_rights_t rights; 1751 off_t offset; 1752 int error; 1753 1754 offset = PAIR32TO64(off_t, uap->offset); 1755 if (offset < 0) 1756 return (EINVAL); 1757 1758 hdr_uio = trl_uio = NULL; 1759 1760 if (uap->hdtr != NULL) { 1761 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1762 if (error) 1763 goto out; 1764 PTRIN_CP(hdtr32, hdtr, headers); 1765 CP(hdtr32, hdtr, hdr_cnt); 1766 PTRIN_CP(hdtr32, hdtr, trailers); 1767 CP(hdtr32, hdtr, trl_cnt); 1768 1769 if (hdtr.headers != NULL) { 1770 iov32 = PTRIN(hdtr32.headers); 1771 error = freebsd32_copyinuio(iov32, 1772 hdtr32.hdr_cnt, &hdr_uio); 1773 if (error) 1774 goto out; 1775 } 1776 if (hdtr.trailers != NULL) { 1777 iov32 = PTRIN(hdtr32.trailers); 1778 error = freebsd32_copyinuio(iov32, 1779 hdtr32.trl_cnt, &trl_uio); 1780 if (error) 1781 goto out; 1782 } 1783 } 1784 1785 AUDIT_ARG_FD(uap->fd); 1786 1787 if ((error = fget_read(td, uap->fd, 1788 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) { 1789 goto out; 1790 } 1791 1792 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1793 uap->nbytes, uap->sbytes, uap->flags, compat ? SFK_COMPAT : 0, td); 1794 fdrop(fp, td); 1795 1796 out: 1797 if (hdr_uio) 1798 free(hdr_uio, M_IOV); 1799 if (trl_uio) 1800 free(trl_uio, M_IOV); 1801 return (error); 1802 } 1803 1804 #ifdef COMPAT_FREEBSD4 1805 int 1806 freebsd4_freebsd32_sendfile(struct thread *td, 1807 struct freebsd4_freebsd32_sendfile_args *uap) 1808 { 1809 return (freebsd32_do_sendfile(td, 1810 (struct freebsd32_sendfile_args *)uap, 1)); 1811 } 1812 #endif 1813 1814 int 1815 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1816 { 1817 1818 return (freebsd32_do_sendfile(td, uap, 0)); 1819 } 1820 1821 static void 1822 copy_stat(struct stat *in, struct stat32 *out) 1823 { 1824 1825 CP(*in, *out, st_dev); 1826 CP(*in, *out, st_ino); 1827 CP(*in, *out, st_mode); 1828 CP(*in, *out, st_nlink); 1829 CP(*in, *out, st_uid); 1830 CP(*in, *out, st_gid); 1831 CP(*in, *out, st_rdev); 1832 TS_CP(*in, *out, st_atim); 1833 TS_CP(*in, *out, st_mtim); 1834 TS_CP(*in, *out, st_ctim); 1835 CP(*in, *out, st_size); 1836 CP(*in, *out, st_blocks); 1837 CP(*in, *out, st_blksize); 1838 CP(*in, *out, st_flags); 1839 CP(*in, *out, st_gen); 1840 TS_CP(*in, *out, st_birthtim); 1841 } 1842 1843 #ifdef COMPAT_43 1844 static void 1845 copy_ostat(struct stat *in, struct ostat32 *out) 1846 { 1847 1848 CP(*in, *out, st_dev); 1849 CP(*in, *out, st_ino); 1850 CP(*in, *out, st_mode); 1851 CP(*in, *out, st_nlink); 1852 CP(*in, *out, st_uid); 1853 CP(*in, *out, st_gid); 1854 CP(*in, *out, st_rdev); 1855 CP(*in, *out, st_size); 1856 TS_CP(*in, *out, st_atim); 1857 TS_CP(*in, *out, st_mtim); 1858 TS_CP(*in, *out, st_ctim); 1859 CP(*in, *out, st_blksize); 1860 CP(*in, *out, st_blocks); 1861 CP(*in, *out, st_flags); 1862 CP(*in, *out, st_gen); 1863 } 1864 #endif 1865 1866 int 1867 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1868 { 1869 struct stat sb; 1870 struct stat32 sb32; 1871 int error; 1872 1873 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1874 if (error) 1875 return (error); 1876 copy_stat(&sb, &sb32); 1877 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1878 return (error); 1879 } 1880 1881 #ifdef COMPAT_43 1882 int 1883 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1884 { 1885 struct stat sb; 1886 struct ostat32 sb32; 1887 int error; 1888 1889 error = kern_stat(td, uap->path, UIO_USERSPACE, &sb); 1890 if (error) 1891 return (error); 1892 copy_ostat(&sb, &sb32); 1893 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1894 return (error); 1895 } 1896 #endif 1897 1898 int 1899 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1900 { 1901 struct stat ub; 1902 struct stat32 ub32; 1903 int error; 1904 1905 error = kern_fstat(td, uap->fd, &ub); 1906 if (error) 1907 return (error); 1908 copy_stat(&ub, &ub32); 1909 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1910 return (error); 1911 } 1912 1913 #ifdef COMPAT_43 1914 int 1915 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1916 { 1917 struct stat ub; 1918 struct ostat32 ub32; 1919 int error; 1920 1921 error = kern_fstat(td, uap->fd, &ub); 1922 if (error) 1923 return (error); 1924 copy_ostat(&ub, &ub32); 1925 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1926 return (error); 1927 } 1928 #endif 1929 1930 int 1931 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1932 { 1933 struct stat ub; 1934 struct stat32 ub32; 1935 int error; 1936 1937 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, &ub); 1938 if (error) 1939 return (error); 1940 copy_stat(&ub, &ub32); 1941 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1942 return (error); 1943 } 1944 1945 int 1946 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1947 { 1948 struct stat sb; 1949 struct stat32 sb32; 1950 int error; 1951 1952 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1953 if (error) 1954 return (error); 1955 copy_stat(&sb, &sb32); 1956 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1957 return (error); 1958 } 1959 1960 #ifdef COMPAT_43 1961 int 1962 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1963 { 1964 struct stat sb; 1965 struct ostat32 sb32; 1966 int error; 1967 1968 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 1969 if (error) 1970 return (error); 1971 copy_ostat(&sb, &sb32); 1972 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1973 return (error); 1974 } 1975 #endif 1976 1977 int 1978 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1979 { 1980 int error, name[CTL_MAXNAME]; 1981 size_t j, oldlen; 1982 uint32_t tmp; 1983 1984 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1985 return (EINVAL); 1986 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1987 if (error) 1988 return (error); 1989 if (uap->oldlenp) { 1990 error = fueword32(uap->oldlenp, &tmp); 1991 oldlen = tmp; 1992 } else { 1993 oldlen = 0; 1994 } 1995 if (error != 0) 1996 return (EFAULT); 1997 error = userland_sysctl(td, name, uap->namelen, 1998 uap->old, &oldlen, 1, 1999 uap->new, uap->newlen, &j, SCTL_MASK32); 2000 if (error && error != ENOMEM) 2001 return (error); 2002 if (uap->oldlenp) 2003 suword32(uap->oldlenp, j); 2004 return (0); 2005 } 2006 2007 int 2008 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 2009 { 2010 uint32_t version; 2011 int error; 2012 struct jail j; 2013 2014 error = copyin(uap->jail, &version, sizeof(uint32_t)); 2015 if (error) 2016 return (error); 2017 2018 switch (version) { 2019 case 0: 2020 { 2021 /* FreeBSD single IPv4 jails. */ 2022 struct jail32_v0 j32_v0; 2023 2024 bzero(&j, sizeof(struct jail)); 2025 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 2026 if (error) 2027 return (error); 2028 CP(j32_v0, j, version); 2029 PTRIN_CP(j32_v0, j, path); 2030 PTRIN_CP(j32_v0, j, hostname); 2031 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 2032 break; 2033 } 2034 2035 case 1: 2036 /* 2037 * Version 1 was used by multi-IPv4 jail implementations 2038 * that never made it into the official kernel. 2039 */ 2040 return (EINVAL); 2041 2042 case 2: /* JAIL_API_VERSION */ 2043 { 2044 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 2045 struct jail32 j32; 2046 2047 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 2048 if (error) 2049 return (error); 2050 CP(j32, j, version); 2051 PTRIN_CP(j32, j, path); 2052 PTRIN_CP(j32, j, hostname); 2053 PTRIN_CP(j32, j, jailname); 2054 CP(j32, j, ip4s); 2055 CP(j32, j, ip6s); 2056 PTRIN_CP(j32, j, ip4); 2057 PTRIN_CP(j32, j, ip6); 2058 break; 2059 } 2060 2061 default: 2062 /* Sci-Fi jails are not supported, sorry. */ 2063 return (EINVAL); 2064 } 2065 return (kern_jail(td, &j)); 2066 } 2067 2068 int 2069 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 2070 { 2071 struct uio *auio; 2072 int error; 2073 2074 /* Check that we have an even number of iovecs. */ 2075 if (uap->iovcnt & 1) 2076 return (EINVAL); 2077 2078 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2079 if (error) 2080 return (error); 2081 error = kern_jail_set(td, auio, uap->flags); 2082 free(auio, M_IOV); 2083 return (error); 2084 } 2085 2086 int 2087 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 2088 { 2089 struct iovec32 iov32; 2090 struct uio *auio; 2091 int error, i; 2092 2093 /* Check that we have an even number of iovecs. */ 2094 if (uap->iovcnt & 1) 2095 return (EINVAL); 2096 2097 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2098 if (error) 2099 return (error); 2100 error = kern_jail_get(td, auio, uap->flags); 2101 if (error == 0) 2102 for (i = 0; i < uap->iovcnt; i++) { 2103 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 2104 CP(auio->uio_iov[i], iov32, iov_len); 2105 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 2106 if (error != 0) 2107 break; 2108 } 2109 free(auio, M_IOV); 2110 return (error); 2111 } 2112 2113 int 2114 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2115 { 2116 struct sigaction32 s32; 2117 struct sigaction sa, osa, *sap; 2118 int error; 2119 2120 if (uap->act) { 2121 error = copyin(uap->act, &s32, sizeof(s32)); 2122 if (error) 2123 return (error); 2124 sa.sa_handler = PTRIN(s32.sa_u); 2125 CP(s32, sa, sa_flags); 2126 CP(s32, sa, sa_mask); 2127 sap = &sa; 2128 } else 2129 sap = NULL; 2130 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2131 if (error == 0 && uap->oact != NULL) { 2132 s32.sa_u = PTROUT(osa.sa_handler); 2133 CP(osa, s32, sa_flags); 2134 CP(osa, s32, sa_mask); 2135 error = copyout(&s32, uap->oact, sizeof(s32)); 2136 } 2137 return (error); 2138 } 2139 2140 #ifdef COMPAT_FREEBSD4 2141 int 2142 freebsd4_freebsd32_sigaction(struct thread *td, 2143 struct freebsd4_freebsd32_sigaction_args *uap) 2144 { 2145 struct sigaction32 s32; 2146 struct sigaction sa, osa, *sap; 2147 int error; 2148 2149 if (uap->act) { 2150 error = copyin(uap->act, &s32, sizeof(s32)); 2151 if (error) 2152 return (error); 2153 sa.sa_handler = PTRIN(s32.sa_u); 2154 CP(s32, sa, sa_flags); 2155 CP(s32, sa, sa_mask); 2156 sap = &sa; 2157 } else 2158 sap = NULL; 2159 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2160 if (error == 0 && uap->oact != NULL) { 2161 s32.sa_u = PTROUT(osa.sa_handler); 2162 CP(osa, s32, sa_flags); 2163 CP(osa, s32, sa_mask); 2164 error = copyout(&s32, uap->oact, sizeof(s32)); 2165 } 2166 return (error); 2167 } 2168 #endif 2169 2170 #ifdef COMPAT_43 2171 struct osigaction32 { 2172 u_int32_t sa_u; 2173 osigset_t sa_mask; 2174 int sa_flags; 2175 }; 2176 2177 #define ONSIG 32 2178 2179 int 2180 ofreebsd32_sigaction(struct thread *td, 2181 struct ofreebsd32_sigaction_args *uap) 2182 { 2183 struct osigaction32 s32; 2184 struct sigaction sa, osa, *sap; 2185 int error; 2186 2187 if (uap->signum <= 0 || uap->signum >= ONSIG) 2188 return (EINVAL); 2189 2190 if (uap->nsa) { 2191 error = copyin(uap->nsa, &s32, sizeof(s32)); 2192 if (error) 2193 return (error); 2194 sa.sa_handler = PTRIN(s32.sa_u); 2195 CP(s32, sa, sa_flags); 2196 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2197 sap = &sa; 2198 } else 2199 sap = NULL; 2200 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2201 if (error == 0 && uap->osa != NULL) { 2202 s32.sa_u = PTROUT(osa.sa_handler); 2203 CP(osa, s32, sa_flags); 2204 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2205 error = copyout(&s32, uap->osa, sizeof(s32)); 2206 } 2207 return (error); 2208 } 2209 2210 int 2211 ofreebsd32_sigprocmask(struct thread *td, 2212 struct ofreebsd32_sigprocmask_args *uap) 2213 { 2214 sigset_t set, oset; 2215 int error; 2216 2217 OSIG2SIG(uap->mask, set); 2218 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2219 SIG2OSIG(oset, td->td_retval[0]); 2220 return (error); 2221 } 2222 2223 int 2224 ofreebsd32_sigpending(struct thread *td, 2225 struct ofreebsd32_sigpending_args *uap) 2226 { 2227 struct proc *p = td->td_proc; 2228 sigset_t siglist; 2229 2230 PROC_LOCK(p); 2231 siglist = p->p_siglist; 2232 SIGSETOR(siglist, td->td_siglist); 2233 PROC_UNLOCK(p); 2234 SIG2OSIG(siglist, td->td_retval[0]); 2235 return (0); 2236 } 2237 2238 struct sigvec32 { 2239 u_int32_t sv_handler; 2240 int sv_mask; 2241 int sv_flags; 2242 }; 2243 2244 int 2245 ofreebsd32_sigvec(struct thread *td, 2246 struct ofreebsd32_sigvec_args *uap) 2247 { 2248 struct sigvec32 vec; 2249 struct sigaction sa, osa, *sap; 2250 int error; 2251 2252 if (uap->signum <= 0 || uap->signum >= ONSIG) 2253 return (EINVAL); 2254 2255 if (uap->nsv) { 2256 error = copyin(uap->nsv, &vec, sizeof(vec)); 2257 if (error) 2258 return (error); 2259 sa.sa_handler = PTRIN(vec.sv_handler); 2260 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2261 sa.sa_flags = vec.sv_flags; 2262 sa.sa_flags ^= SA_RESTART; 2263 sap = &sa; 2264 } else 2265 sap = NULL; 2266 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2267 if (error == 0 && uap->osv != NULL) { 2268 vec.sv_handler = PTROUT(osa.sa_handler); 2269 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2270 vec.sv_flags = osa.sa_flags; 2271 vec.sv_flags &= ~SA_NOCLDWAIT; 2272 vec.sv_flags ^= SA_RESTART; 2273 error = copyout(&vec, uap->osv, sizeof(vec)); 2274 } 2275 return (error); 2276 } 2277 2278 int 2279 ofreebsd32_sigblock(struct thread *td, 2280 struct ofreebsd32_sigblock_args *uap) 2281 { 2282 sigset_t set, oset; 2283 2284 OSIG2SIG(uap->mask, set); 2285 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2286 SIG2OSIG(oset, td->td_retval[0]); 2287 return (0); 2288 } 2289 2290 int 2291 ofreebsd32_sigsetmask(struct thread *td, 2292 struct ofreebsd32_sigsetmask_args *uap) 2293 { 2294 sigset_t set, oset; 2295 2296 OSIG2SIG(uap->mask, set); 2297 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2298 SIG2OSIG(oset, td->td_retval[0]); 2299 return (0); 2300 } 2301 2302 int 2303 ofreebsd32_sigsuspend(struct thread *td, 2304 struct ofreebsd32_sigsuspend_args *uap) 2305 { 2306 sigset_t mask; 2307 2308 OSIG2SIG(uap->mask, mask); 2309 return (kern_sigsuspend(td, mask)); 2310 } 2311 2312 struct sigstack32 { 2313 u_int32_t ss_sp; 2314 int ss_onstack; 2315 }; 2316 2317 int 2318 ofreebsd32_sigstack(struct thread *td, 2319 struct ofreebsd32_sigstack_args *uap) 2320 { 2321 struct sigstack32 s32; 2322 struct sigstack nss, oss; 2323 int error = 0, unss; 2324 2325 if (uap->nss != NULL) { 2326 error = copyin(uap->nss, &s32, sizeof(s32)); 2327 if (error) 2328 return (error); 2329 nss.ss_sp = PTRIN(s32.ss_sp); 2330 CP(s32, nss, ss_onstack); 2331 unss = 1; 2332 } else { 2333 unss = 0; 2334 } 2335 oss.ss_sp = td->td_sigstk.ss_sp; 2336 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2337 if (unss) { 2338 td->td_sigstk.ss_sp = nss.ss_sp; 2339 td->td_sigstk.ss_size = 0; 2340 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2341 td->td_pflags |= TDP_ALTSTACK; 2342 } 2343 if (uap->oss != NULL) { 2344 s32.ss_sp = PTROUT(oss.ss_sp); 2345 CP(oss, s32, ss_onstack); 2346 error = copyout(&s32, uap->oss, sizeof(s32)); 2347 } 2348 return (error); 2349 } 2350 #endif 2351 2352 int 2353 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2354 { 2355 struct timespec32 rmt32, rqt32; 2356 struct timespec rmt, rqt; 2357 int error; 2358 2359 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2360 if (error) 2361 return (error); 2362 2363 CP(rqt32, rqt, tv_sec); 2364 CP(rqt32, rqt, tv_nsec); 2365 2366 if (uap->rmtp && 2367 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2368 return (EFAULT); 2369 error = kern_nanosleep(td, &rqt, &rmt); 2370 if (error == EINTR && uap->rmtp) { 2371 int error2; 2372 2373 CP(rmt, rmt32, tv_sec); 2374 CP(rmt, rmt32, tv_nsec); 2375 2376 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2377 if (error2) 2378 error = error2; 2379 } 2380 return (error); 2381 } 2382 2383 int 2384 freebsd32_clock_gettime(struct thread *td, 2385 struct freebsd32_clock_gettime_args *uap) 2386 { 2387 struct timespec ats; 2388 struct timespec32 ats32; 2389 int error; 2390 2391 error = kern_clock_gettime(td, uap->clock_id, &ats); 2392 if (error == 0) { 2393 CP(ats, ats32, tv_sec); 2394 CP(ats, ats32, tv_nsec); 2395 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2396 } 2397 return (error); 2398 } 2399 2400 int 2401 freebsd32_clock_settime(struct thread *td, 2402 struct freebsd32_clock_settime_args *uap) 2403 { 2404 struct timespec ats; 2405 struct timespec32 ats32; 2406 int error; 2407 2408 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2409 if (error) 2410 return (error); 2411 CP(ats32, ats, tv_sec); 2412 CP(ats32, ats, tv_nsec); 2413 2414 return (kern_clock_settime(td, uap->clock_id, &ats)); 2415 } 2416 2417 int 2418 freebsd32_clock_getres(struct thread *td, 2419 struct freebsd32_clock_getres_args *uap) 2420 { 2421 struct timespec ts; 2422 struct timespec32 ts32; 2423 int error; 2424 2425 if (uap->tp == NULL) 2426 return (0); 2427 error = kern_clock_getres(td, uap->clock_id, &ts); 2428 if (error == 0) { 2429 CP(ts, ts32, tv_sec); 2430 CP(ts, ts32, tv_nsec); 2431 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2432 } 2433 return (error); 2434 } 2435 2436 int freebsd32_ktimer_create(struct thread *td, 2437 struct freebsd32_ktimer_create_args *uap) 2438 { 2439 struct sigevent32 ev32; 2440 struct sigevent ev, *evp; 2441 int error, id; 2442 2443 if (uap->evp == NULL) { 2444 evp = NULL; 2445 } else { 2446 evp = &ev; 2447 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2448 if (error != 0) 2449 return (error); 2450 error = convert_sigevent32(&ev32, &ev); 2451 if (error != 0) 2452 return (error); 2453 } 2454 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2455 if (error == 0) { 2456 error = copyout(&id, uap->timerid, sizeof(int)); 2457 if (error != 0) 2458 kern_ktimer_delete(td, id); 2459 } 2460 return (error); 2461 } 2462 2463 int 2464 freebsd32_ktimer_settime(struct thread *td, 2465 struct freebsd32_ktimer_settime_args *uap) 2466 { 2467 struct itimerspec32 val32, oval32; 2468 struct itimerspec val, oval, *ovalp; 2469 int error; 2470 2471 error = copyin(uap->value, &val32, sizeof(val32)); 2472 if (error != 0) 2473 return (error); 2474 ITS_CP(val32, val); 2475 ovalp = uap->ovalue != NULL ? &oval : NULL; 2476 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2477 if (error == 0 && uap->ovalue != NULL) { 2478 ITS_CP(oval, oval32); 2479 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2480 } 2481 return (error); 2482 } 2483 2484 int 2485 freebsd32_ktimer_gettime(struct thread *td, 2486 struct freebsd32_ktimer_gettime_args *uap) 2487 { 2488 struct itimerspec32 val32; 2489 struct itimerspec val; 2490 int error; 2491 2492 error = kern_ktimer_gettime(td, uap->timerid, &val); 2493 if (error == 0) { 2494 ITS_CP(val, val32); 2495 error = copyout(&val32, uap->value, sizeof(val32)); 2496 } 2497 return (error); 2498 } 2499 2500 int 2501 freebsd32_clock_getcpuclockid2(struct thread *td, 2502 struct freebsd32_clock_getcpuclockid2_args *uap) 2503 { 2504 clockid_t clk_id; 2505 int error; 2506 2507 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2508 uap->which, &clk_id); 2509 if (error == 0) 2510 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2511 return (error); 2512 } 2513 2514 int 2515 freebsd32_thr_new(struct thread *td, 2516 struct freebsd32_thr_new_args *uap) 2517 { 2518 struct thr_param32 param32; 2519 struct thr_param param; 2520 int error; 2521 2522 if (uap->param_size < 0 || 2523 uap->param_size > sizeof(struct thr_param32)) 2524 return (EINVAL); 2525 bzero(¶m, sizeof(struct thr_param)); 2526 bzero(¶m32, sizeof(struct thr_param32)); 2527 error = copyin(uap->param, ¶m32, uap->param_size); 2528 if (error != 0) 2529 return (error); 2530 param.start_func = PTRIN(param32.start_func); 2531 param.arg = PTRIN(param32.arg); 2532 param.stack_base = PTRIN(param32.stack_base); 2533 param.stack_size = param32.stack_size; 2534 param.tls_base = PTRIN(param32.tls_base); 2535 param.tls_size = param32.tls_size; 2536 param.child_tid = PTRIN(param32.child_tid); 2537 param.parent_tid = PTRIN(param32.parent_tid); 2538 param.flags = param32.flags; 2539 param.rtp = PTRIN(param32.rtp); 2540 param.spare[0] = PTRIN(param32.spare[0]); 2541 param.spare[1] = PTRIN(param32.spare[1]); 2542 param.spare[2] = PTRIN(param32.spare[2]); 2543 2544 return (kern_thr_new(td, ¶m)); 2545 } 2546 2547 int 2548 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2549 { 2550 struct timespec32 ts32; 2551 struct timespec ts, *tsp; 2552 int error; 2553 2554 error = 0; 2555 tsp = NULL; 2556 if (uap->timeout != NULL) { 2557 error = copyin((const void *)uap->timeout, (void *)&ts32, 2558 sizeof(struct timespec32)); 2559 if (error != 0) 2560 return (error); 2561 ts.tv_sec = ts32.tv_sec; 2562 ts.tv_nsec = ts32.tv_nsec; 2563 tsp = &ts; 2564 } 2565 return (kern_thr_suspend(td, tsp)); 2566 } 2567 2568 void 2569 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2570 { 2571 bzero(dst, sizeof(*dst)); 2572 dst->si_signo = src->si_signo; 2573 dst->si_errno = src->si_errno; 2574 dst->si_code = src->si_code; 2575 dst->si_pid = src->si_pid; 2576 dst->si_uid = src->si_uid; 2577 dst->si_status = src->si_status; 2578 dst->si_addr = (uintptr_t)src->si_addr; 2579 dst->si_value.sival_int = src->si_value.sival_int; 2580 dst->si_timerid = src->si_timerid; 2581 dst->si_overrun = src->si_overrun; 2582 } 2583 2584 #ifndef _FREEBSD32_SYSPROTO_H_ 2585 struct freebsd32_sigqueue_args { 2586 pid_t pid; 2587 int signum; 2588 /* union sigval32 */ int value; 2589 }; 2590 #endif 2591 int 2592 freebsd32_sigqueue(struct thread *td, struct freebsd32_sigqueue_args *uap) 2593 { 2594 union sigval sv; 2595 2596 /* 2597 * On 32-bit ABIs, sival_int and sival_ptr are the same. 2598 * On 64-bit little-endian ABIs, the low bits are the same. 2599 * In 64-bit big-endian ABIs, sival_int overlaps with 2600 * sival_ptr's HIGH bits. We choose to support sival_int 2601 * rather than sival_ptr in this case as it seems to be 2602 * more common. 2603 */ 2604 bzero(&sv, sizeof(sv)); 2605 sv.sival_int = uap->value; 2606 2607 return (kern_sigqueue(td, uap->pid, uap->signum, &sv)); 2608 } 2609 2610 int 2611 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2612 { 2613 struct timespec32 ts32; 2614 struct timespec ts; 2615 struct timespec *timeout; 2616 sigset_t set; 2617 ksiginfo_t ksi; 2618 struct siginfo32 si32; 2619 int error; 2620 2621 if (uap->timeout) { 2622 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2623 if (error) 2624 return (error); 2625 ts.tv_sec = ts32.tv_sec; 2626 ts.tv_nsec = ts32.tv_nsec; 2627 timeout = &ts; 2628 } else 2629 timeout = NULL; 2630 2631 error = copyin(uap->set, &set, sizeof(set)); 2632 if (error) 2633 return (error); 2634 2635 error = kern_sigtimedwait(td, set, &ksi, timeout); 2636 if (error) 2637 return (error); 2638 2639 if (uap->info) { 2640 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2641 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2642 } 2643 2644 if (error == 0) 2645 td->td_retval[0] = ksi.ksi_signo; 2646 return (error); 2647 } 2648 2649 /* 2650 * MPSAFE 2651 */ 2652 int 2653 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2654 { 2655 ksiginfo_t ksi; 2656 struct siginfo32 si32; 2657 sigset_t set; 2658 int error; 2659 2660 error = copyin(uap->set, &set, sizeof(set)); 2661 if (error) 2662 return (error); 2663 2664 error = kern_sigtimedwait(td, set, &ksi, NULL); 2665 if (error) 2666 return (error); 2667 2668 if (uap->info) { 2669 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2670 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2671 } 2672 if (error == 0) 2673 td->td_retval[0] = ksi.ksi_signo; 2674 return (error); 2675 } 2676 2677 int 2678 freebsd32_cpuset_setid(struct thread *td, 2679 struct freebsd32_cpuset_setid_args *uap) 2680 { 2681 struct cpuset_setid_args ap; 2682 2683 ap.which = uap->which; 2684 ap.id = PAIR32TO64(id_t,uap->id); 2685 ap.setid = uap->setid; 2686 2687 return (sys_cpuset_setid(td, &ap)); 2688 } 2689 2690 int 2691 freebsd32_cpuset_getid(struct thread *td, 2692 struct freebsd32_cpuset_getid_args *uap) 2693 { 2694 struct cpuset_getid_args ap; 2695 2696 ap.level = uap->level; 2697 ap.which = uap->which; 2698 ap.id = PAIR32TO64(id_t,uap->id); 2699 ap.setid = uap->setid; 2700 2701 return (sys_cpuset_getid(td, &ap)); 2702 } 2703 2704 int 2705 freebsd32_cpuset_getaffinity(struct thread *td, 2706 struct freebsd32_cpuset_getaffinity_args *uap) 2707 { 2708 struct cpuset_getaffinity_args ap; 2709 2710 ap.level = uap->level; 2711 ap.which = uap->which; 2712 ap.id = PAIR32TO64(id_t,uap->id); 2713 ap.cpusetsize = uap->cpusetsize; 2714 ap.mask = uap->mask; 2715 2716 return (sys_cpuset_getaffinity(td, &ap)); 2717 } 2718 2719 int 2720 freebsd32_cpuset_setaffinity(struct thread *td, 2721 struct freebsd32_cpuset_setaffinity_args *uap) 2722 { 2723 struct cpuset_setaffinity_args ap; 2724 2725 ap.level = uap->level; 2726 ap.which = uap->which; 2727 ap.id = PAIR32TO64(id_t,uap->id); 2728 ap.cpusetsize = uap->cpusetsize; 2729 ap.mask = uap->mask; 2730 2731 return (sys_cpuset_setaffinity(td, &ap)); 2732 } 2733 2734 int 2735 freebsd32_nmount(struct thread *td, 2736 struct freebsd32_nmount_args /* { 2737 struct iovec *iovp; 2738 unsigned int iovcnt; 2739 int flags; 2740 } */ *uap) 2741 { 2742 struct uio *auio; 2743 uint64_t flags; 2744 int error; 2745 2746 /* 2747 * Mount flags are now 64-bits. On 32-bit archtectures only 2748 * 32-bits are passed in, but from here on everything handles 2749 * 64-bit flags correctly. 2750 */ 2751 flags = uap->flags; 2752 2753 AUDIT_ARG_FFLAGS(flags); 2754 2755 /* 2756 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2757 * userspace to set this flag, but we must filter it out if we want 2758 * MNT_UPDATE on the root file system to work. 2759 * MNT_ROOTFS should only be set by the kernel when mounting its 2760 * root file system. 2761 */ 2762 flags &= ~MNT_ROOTFS; 2763 2764 /* 2765 * check that we have an even number of iovec's 2766 * and that we have at least two options. 2767 */ 2768 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2769 return (EINVAL); 2770 2771 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2772 if (error) 2773 return (error); 2774 error = vfs_donmount(td, flags, auio); 2775 2776 free(auio, M_IOV); 2777 return error; 2778 } 2779 2780 #if 0 2781 int 2782 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2783 { 2784 struct yyy32 *p32, s32; 2785 struct yyy *p = NULL, s; 2786 struct xxx_arg ap; 2787 int error; 2788 2789 if (uap->zzz) { 2790 error = copyin(uap->zzz, &s32, sizeof(s32)); 2791 if (error) 2792 return (error); 2793 /* translate in */ 2794 p = &s; 2795 } 2796 error = kern_xxx(td, p); 2797 if (error) 2798 return (error); 2799 if (uap->zzz) { 2800 /* translate out */ 2801 error = copyout(&s32, p32, sizeof(s32)); 2802 } 2803 return (error); 2804 } 2805 #endif 2806 2807 int 2808 syscall32_register(int *offset, struct sysent *new_sysent, 2809 struct sysent *old_sysent) 2810 { 2811 if (*offset == NO_SYSCALL) { 2812 int i; 2813 2814 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2815 if (freebsd32_sysent[i].sy_call == 2816 (sy_call_t *)lkmnosys) 2817 break; 2818 if (i == SYS_MAXSYSCALL) 2819 return (ENFILE); 2820 *offset = i; 2821 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2822 return (EINVAL); 2823 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2824 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2825 return (EEXIST); 2826 2827 *old_sysent = freebsd32_sysent[*offset]; 2828 freebsd32_sysent[*offset] = *new_sysent; 2829 return 0; 2830 } 2831 2832 int 2833 syscall32_deregister(int *offset, struct sysent *old_sysent) 2834 { 2835 2836 if (*offset) 2837 freebsd32_sysent[*offset] = *old_sysent; 2838 return 0; 2839 } 2840 2841 int 2842 syscall32_module_handler(struct module *mod, int what, void *arg) 2843 { 2844 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2845 modspecific_t ms; 2846 int error; 2847 2848 switch (what) { 2849 case MOD_LOAD: 2850 error = syscall32_register(data->offset, data->new_sysent, 2851 &data->old_sysent); 2852 if (error) { 2853 /* Leave a mark so we know to safely unload below. */ 2854 data->offset = NULL; 2855 return error; 2856 } 2857 ms.intval = *data->offset; 2858 MOD_XLOCK; 2859 module_setspecific(mod, &ms); 2860 MOD_XUNLOCK; 2861 if (data->chainevh) 2862 error = data->chainevh(mod, what, data->chainarg); 2863 return (error); 2864 case MOD_UNLOAD: 2865 /* 2866 * MOD_LOAD failed, so just return without calling the 2867 * chained handler since we didn't pass along the MOD_LOAD 2868 * event. 2869 */ 2870 if (data->offset == NULL) 2871 return (0); 2872 if (data->chainevh) { 2873 error = data->chainevh(mod, what, data->chainarg); 2874 if (error) 2875 return (error); 2876 } 2877 error = syscall32_deregister(data->offset, &data->old_sysent); 2878 return (error); 2879 default: 2880 error = EOPNOTSUPP; 2881 if (data->chainevh) 2882 error = data->chainevh(mod, what, data->chainarg); 2883 return (error); 2884 } 2885 } 2886 2887 int 2888 syscall32_helper_register(struct syscall_helper_data *sd) 2889 { 2890 struct syscall_helper_data *sd1; 2891 int error; 2892 2893 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2894 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2895 &sd1->old_sysent); 2896 if (error != 0) { 2897 syscall32_helper_unregister(sd); 2898 return (error); 2899 } 2900 sd1->registered = 1; 2901 } 2902 return (0); 2903 } 2904 2905 int 2906 syscall32_helper_unregister(struct syscall_helper_data *sd) 2907 { 2908 struct syscall_helper_data *sd1; 2909 2910 for (sd1 = sd; sd1->registered != 0; sd1++) { 2911 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2912 sd1->registered = 0; 2913 } 2914 return (0); 2915 } 2916 2917 register_t * 2918 freebsd32_copyout_strings(struct image_params *imgp) 2919 { 2920 int argc, envc, i; 2921 u_int32_t *vectp; 2922 char *stringp; 2923 uintptr_t destp; 2924 u_int32_t *stack_base; 2925 struct freebsd32_ps_strings *arginfo; 2926 char canary[sizeof(long) * 8]; 2927 int32_t pagesizes32[MAXPAGESIZES]; 2928 size_t execpath_len; 2929 int szsigcode; 2930 2931 /* 2932 * Calculate string base and vector table pointers. 2933 * Also deal with signal trampoline code for this exec type. 2934 */ 2935 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2936 execpath_len = strlen(imgp->execpath) + 1; 2937 else 2938 execpath_len = 0; 2939 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2940 sv_psstrings; 2941 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2942 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2943 else 2944 szsigcode = 0; 2945 destp = (uintptr_t)arginfo; 2946 2947 /* 2948 * install sigcode 2949 */ 2950 if (szsigcode != 0) { 2951 destp -= szsigcode; 2952 destp = rounddown2(destp, sizeof(uint32_t)); 2953 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2954 szsigcode); 2955 } 2956 2957 /* 2958 * Copy the image path for the rtld. 2959 */ 2960 if (execpath_len != 0) { 2961 destp -= execpath_len; 2962 imgp->execpathp = destp; 2963 copyout(imgp->execpath, (void *)destp, execpath_len); 2964 } 2965 2966 /* 2967 * Prepare the canary for SSP. 2968 */ 2969 arc4rand(canary, sizeof(canary), 0); 2970 destp -= sizeof(canary); 2971 imgp->canary = destp; 2972 copyout(canary, (void *)destp, sizeof(canary)); 2973 imgp->canarylen = sizeof(canary); 2974 2975 /* 2976 * Prepare the pagesizes array. 2977 */ 2978 for (i = 0; i < MAXPAGESIZES; i++) 2979 pagesizes32[i] = (uint32_t)pagesizes[i]; 2980 destp -= sizeof(pagesizes32); 2981 destp = rounddown2(destp, sizeof(uint32_t)); 2982 imgp->pagesizes = destp; 2983 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2984 imgp->pagesizeslen = sizeof(pagesizes32); 2985 2986 destp -= ARG_MAX - imgp->args->stringspace; 2987 destp = rounddown2(destp, sizeof(uint32_t)); 2988 2989 /* 2990 * If we have a valid auxargs ptr, prepare some room 2991 * on the stack. 2992 */ 2993 if (imgp->auxargs) { 2994 /* 2995 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2996 * lower compatibility. 2997 */ 2998 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2999 : (AT_COUNT * 2); 3000 /* 3001 * The '+ 2' is for the null pointers at the end of each of 3002 * the arg and env vector sets,and imgp->auxarg_size is room 3003 * for argument of Runtime loader. 3004 */ 3005 vectp = (u_int32_t *) (destp - (imgp->args->argc + 3006 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 3007 sizeof(u_int32_t)); 3008 } else { 3009 /* 3010 * The '+ 2' is for the null pointers at the end of each of 3011 * the arg and env vector sets 3012 */ 3013 vectp = (u_int32_t *)(destp - (imgp->args->argc + 3014 imgp->args->envc + 2) * sizeof(u_int32_t)); 3015 } 3016 3017 /* 3018 * vectp also becomes our initial stack base 3019 */ 3020 stack_base = vectp; 3021 3022 stringp = imgp->args->begin_argv; 3023 argc = imgp->args->argc; 3024 envc = imgp->args->envc; 3025 /* 3026 * Copy out strings - arguments and environment. 3027 */ 3028 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 3029 3030 /* 3031 * Fill in "ps_strings" struct for ps, w, etc. 3032 */ 3033 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 3034 suword32(&arginfo->ps_nargvstr, argc); 3035 3036 /* 3037 * Fill in argument portion of vector table. 3038 */ 3039 for (; argc > 0; --argc) { 3040 suword32(vectp++, (u_int32_t)(intptr_t)destp); 3041 while (*stringp++ != 0) 3042 destp++; 3043 destp++; 3044 } 3045 3046 /* a null vector table pointer separates the argp's from the envp's */ 3047 suword32(vectp++, 0); 3048 3049 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 3050 suword32(&arginfo->ps_nenvstr, envc); 3051 3052 /* 3053 * Fill in environment portion of vector table. 3054 */ 3055 for (; envc > 0; --envc) { 3056 suword32(vectp++, (u_int32_t)(intptr_t)destp); 3057 while (*stringp++ != 0) 3058 destp++; 3059 destp++; 3060 } 3061 3062 /* end of vector table is a null pointer */ 3063 suword32(vectp, 0); 3064 3065 return ((register_t *)stack_base); 3066 } 3067 3068 int 3069 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 3070 { 3071 struct kld_file_stat *stat; 3072 struct kld32_file_stat *stat32; 3073 int error, version; 3074 3075 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 3076 != 0) 3077 return (error); 3078 if (version != sizeof(struct kld32_file_stat_1) && 3079 version != sizeof(struct kld32_file_stat)) 3080 return (EINVAL); 3081 3082 stat = malloc(sizeof(*stat), M_TEMP, M_WAITOK | M_ZERO); 3083 stat32 = malloc(sizeof(*stat32), M_TEMP, M_WAITOK | M_ZERO); 3084 error = kern_kldstat(td, uap->fileid, stat); 3085 if (error == 0) { 3086 bcopy(&stat->name[0], &stat32->name[0], sizeof(stat->name)); 3087 CP(*stat, *stat32, refs); 3088 CP(*stat, *stat32, id); 3089 PTROUT_CP(*stat, *stat32, address); 3090 CP(*stat, *stat32, size); 3091 bcopy(&stat->pathname[0], &stat32->pathname[0], 3092 sizeof(stat->pathname)); 3093 error = copyout(stat32, uap->stat, version); 3094 } 3095 free(stat, M_TEMP); 3096 free(stat32, M_TEMP); 3097 return (error); 3098 } 3099 3100 int 3101 freebsd32_posix_fallocate(struct thread *td, 3102 struct freebsd32_posix_fallocate_args *uap) 3103 { 3104 3105 td->td_retval[0] = kern_posix_fallocate(td, uap->fd, 3106 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 3107 return (0); 3108 } 3109 3110 int 3111 freebsd32_posix_fadvise(struct thread *td, 3112 struct freebsd32_posix_fadvise_args *uap) 3113 { 3114 3115 td->td_retval[0] = kern_posix_fadvise(td, uap->fd, 3116 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len), 3117 uap->advice); 3118 return (0); 3119 } 3120 3121 int 3122 convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 3123 { 3124 3125 CP(*sig32, *sig, sigev_notify); 3126 switch (sig->sigev_notify) { 3127 case SIGEV_NONE: 3128 break; 3129 case SIGEV_THREAD_ID: 3130 CP(*sig32, *sig, sigev_notify_thread_id); 3131 /* FALLTHROUGH */ 3132 case SIGEV_SIGNAL: 3133 CP(*sig32, *sig, sigev_signo); 3134 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3135 break; 3136 case SIGEV_KEVENT: 3137 CP(*sig32, *sig, sigev_notify_kqueue); 3138 CP(*sig32, *sig, sigev_notify_kevent_flags); 3139 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3140 break; 3141 default: 3142 return (EINVAL); 3143 } 3144 return (0); 3145 } 3146 3147 int 3148 freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3149 { 3150 void *data; 3151 union { 3152 struct procctl_reaper_status rs; 3153 struct procctl_reaper_pids rp; 3154 struct procctl_reaper_kill rk; 3155 } x; 3156 union { 3157 struct procctl_reaper_pids32 rp; 3158 } x32; 3159 int error, error1, flags; 3160 3161 switch (uap->com) { 3162 case PROC_SPROTECT: 3163 case PROC_TRACE_CTL: 3164 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3165 if (error != 0) 3166 return (error); 3167 data = &flags; 3168 break; 3169 case PROC_REAP_ACQUIRE: 3170 case PROC_REAP_RELEASE: 3171 if (uap->data != NULL) 3172 return (EINVAL); 3173 data = NULL; 3174 break; 3175 case PROC_REAP_STATUS: 3176 data = &x.rs; 3177 break; 3178 case PROC_REAP_GETPIDS: 3179 error = copyin(uap->data, &x32.rp, sizeof(x32.rp)); 3180 if (error != 0) 3181 return (error); 3182 CP(x32.rp, x.rp, rp_count); 3183 PTRIN_CP(x32.rp, x.rp, rp_pids); 3184 data = &x.rp; 3185 break; 3186 case PROC_REAP_KILL: 3187 error = copyin(uap->data, &x.rk, sizeof(x.rk)); 3188 if (error != 0) 3189 return (error); 3190 data = &x.rk; 3191 break; 3192 case PROC_TRACE_STATUS: 3193 data = &flags; 3194 break; 3195 default: 3196 return (EINVAL); 3197 } 3198 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3199 uap->com, data); 3200 switch (uap->com) { 3201 case PROC_REAP_STATUS: 3202 if (error == 0) 3203 error = copyout(&x.rs, uap->data, sizeof(x.rs)); 3204 break; 3205 case PROC_REAP_KILL: 3206 error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); 3207 if (error == 0) 3208 error = error1; 3209 break; 3210 case PROC_TRACE_STATUS: 3211 if (error == 0) 3212 error = copyout(&flags, uap->data, sizeof(flags)); 3213 break; 3214 } 3215 return (error); 3216 } 3217 3218 int 3219 freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 3220 { 3221 long tmp; 3222 3223 switch (uap->cmd) { 3224 /* 3225 * Do unsigned conversion for arg when operation 3226 * interprets it as flags or pointer. 3227 */ 3228 case F_SETLK_REMOTE: 3229 case F_SETLKW: 3230 case F_SETLK: 3231 case F_GETLK: 3232 case F_SETFD: 3233 case F_SETFL: 3234 case F_OGETLK: 3235 case F_OSETLK: 3236 case F_OSETLKW: 3237 tmp = (unsigned int)(uap->arg); 3238 break; 3239 default: 3240 tmp = uap->arg; 3241 break; 3242 } 3243 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 3244 } 3245 3246 int 3247 freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap) 3248 { 3249 struct timespec32 ts32; 3250 struct timespec ts, *tsp; 3251 sigset_t set, *ssp; 3252 int error; 3253 3254 if (uap->ts != NULL) { 3255 error = copyin(uap->ts, &ts32, sizeof(ts32)); 3256 if (error != 0) 3257 return (error); 3258 CP(ts32, ts, tv_sec); 3259 CP(ts32, ts, tv_nsec); 3260 tsp = &ts; 3261 } else 3262 tsp = NULL; 3263 if (uap->set != NULL) { 3264 error = copyin(uap->set, &set, sizeof(set)); 3265 if (error != 0) 3266 return (error); 3267 ssp = &set; 3268 } else 3269 ssp = NULL; 3270 3271 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp)); 3272 }
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