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