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 #include "opt_ktrace.h" 34 35 #define __ELF_WORD_SIZE 32 36 37 #include <sys/param.h> 38 #include <sys/bus.h> 39 #include <sys/capsicum.h> 40 #include <sys/clock.h> 41 #include <sys/exec.h> 42 #include <sys/fcntl.h> 43 #include <sys/filedesc.h> 44 #include <sys/imgact.h> 45 #include <sys/jail.h> 46 #include <sys/kernel.h> 47 #include <sys/limits.h> 48 #include <sys/linker.h> 49 #include <sys/lock.h> 50 #include <sys/malloc.h> 51 #include <sys/file.h> /* Must come after sys/malloc.h */ 52 #include <sys/imgact.h> 53 #include <sys/mbuf.h> 54 #include <sys/mman.h> 55 #include <sys/module.h> 56 #include <sys/mount.h> 57 #include <sys/mutex.h> 58 #include <sys/namei.h> 59 #include <sys/proc.h> 60 #include <sys/procctl.h> 61 #include <sys/reboot.h> 62 #include <sys/resource.h> 63 #include <sys/resourcevar.h> 64 #include <sys/selinfo.h> 65 #include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 66 #include <sys/pipe.h> /* Must come after sys/selinfo.h */ 67 #include <sys/signal.h> 68 #include <sys/signalvar.h> 69 #include <sys/socket.h> 70 #include <sys/socketvar.h> 71 #include <sys/stat.h> 72 #include <sys/syscall.h> 73 #include <sys/syscallsubr.h> 74 #include <sys/sysctl.h> 75 #include <sys/sysent.h> 76 #include <sys/sysproto.h> 77 #include <sys/systm.h> 78 #include <sys/thr.h> 79 #include <sys/unistd.h> 80 #include <sys/ucontext.h> 81 #include <sys/vnode.h> 82 #include <sys/wait.h> 83 #include <sys/ipc.h> 84 #include <sys/msg.h> 85 #include <sys/sem.h> 86 #include <sys/shm.h> 87 #ifdef KTRACE 88 #include <sys/ktrace.h> 89 #endif 90 91 #ifdef INET 92 #include <netinet/in.h> 93 #endif 94 95 #include <vm/vm.h> 96 #include <vm/vm_param.h> 97 #include <vm/pmap.h> 98 #include <vm/vm_map.h> 99 #include <vm/vm_object.h> 100 #include <vm/vm_extern.h> 101 102 #include <machine/cpu.h> 103 #include <machine/elf.h> 104 105 #include <security/audit/audit.h> 106 107 #include <compat/freebsd32/freebsd32_util.h> 108 #include <compat/freebsd32/freebsd32.h> 109 #include <compat/freebsd32/freebsd32_ipc.h> 110 #include <compat/freebsd32/freebsd32_misc.h> 111 #include <compat/freebsd32/freebsd32_signal.h> 112 #include <compat/freebsd32/freebsd32_proto.h> 113 114 FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD"); 115 116 #ifndef __mips__ 117 CTASSERT(sizeof(struct timeval32) == 8); 118 CTASSERT(sizeof(struct timespec32) == 8); 119 CTASSERT(sizeof(struct itimerval32) == 16); 120 CTASSERT(sizeof(struct bintime32) == 12); 121 #endif 122 CTASSERT(sizeof(struct statfs32) == 256); 123 #ifndef __mips__ 124 CTASSERT(sizeof(struct rusage32) == 72); 125 #endif 126 CTASSERT(sizeof(struct sigaltstack32) == 12); 127 CTASSERT(sizeof(struct kevent32) == 20); 128 CTASSERT(sizeof(struct iovec32) == 8); 129 CTASSERT(sizeof(struct msghdr32) == 28); 130 #ifndef __mips__ 131 CTASSERT(sizeof(struct stat32) == 96); 132 #endif 133 CTASSERT(sizeof(struct sigaction32) == 24); 134 135 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 136 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 137 static int freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id, 138 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp); 139 140 void 141 freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 142 { 143 144 TV_CP(*s, *s32, ru_utime); 145 TV_CP(*s, *s32, ru_stime); 146 CP(*s, *s32, ru_maxrss); 147 CP(*s, *s32, ru_ixrss); 148 CP(*s, *s32, ru_idrss); 149 CP(*s, *s32, ru_isrss); 150 CP(*s, *s32, ru_minflt); 151 CP(*s, *s32, ru_majflt); 152 CP(*s, *s32, ru_nswap); 153 CP(*s, *s32, ru_inblock); 154 CP(*s, *s32, ru_oublock); 155 CP(*s, *s32, ru_msgsnd); 156 CP(*s, *s32, ru_msgrcv); 157 CP(*s, *s32, ru_nsignals); 158 CP(*s, *s32, ru_nvcsw); 159 CP(*s, *s32, ru_nivcsw); 160 } 161 162 int 163 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 164 { 165 int error, status; 166 struct rusage32 ru32; 167 struct rusage ru, *rup; 168 169 if (uap->rusage != NULL) 170 rup = &ru; 171 else 172 rup = NULL; 173 error = kern_wait(td, uap->pid, &status, uap->options, rup); 174 if (error) 175 return (error); 176 if (uap->status != NULL) 177 error = copyout(&status, uap->status, sizeof(status)); 178 if (uap->rusage != NULL && error == 0) { 179 freebsd32_rusage_out(&ru, &ru32); 180 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 181 } 182 return (error); 183 } 184 185 int 186 freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap) 187 { 188 struct wrusage32 wru32; 189 struct __wrusage wru, *wrup; 190 struct siginfo32 si32; 191 struct __siginfo si, *sip; 192 int error, status; 193 194 if (uap->wrusage != NULL) 195 wrup = &wru; 196 else 197 wrup = NULL; 198 if (uap->info != NULL) { 199 sip = &si; 200 bzero(sip, sizeof(*sip)); 201 } else 202 sip = NULL; 203 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id), 204 &status, uap->options, wrup, sip); 205 if (error != 0) 206 return (error); 207 if (uap->status != NULL) 208 error = copyout(&status, uap->status, sizeof(status)); 209 if (uap->wrusage != NULL && error == 0) { 210 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self); 211 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children); 212 error = copyout(&wru32, uap->wrusage, sizeof(wru32)); 213 } 214 if (uap->info != NULL && error == 0) { 215 siginfo_to_siginfo32 (&si, &si32); 216 error = copyout(&si32, uap->info, sizeof(si32)); 217 } 218 return (error); 219 } 220 221 #ifdef COMPAT_FREEBSD4 222 static void 223 copy_statfs(struct statfs *in, struct statfs32 *out) 224 { 225 226 statfs_scale_blocks(in, INT32_MAX); 227 bzero(out, sizeof(*out)); 228 CP(*in, *out, f_bsize); 229 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 230 CP(*in, *out, f_blocks); 231 CP(*in, *out, f_bfree); 232 CP(*in, *out, f_bavail); 233 out->f_files = MIN(in->f_files, INT32_MAX); 234 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 235 CP(*in, *out, f_fsid); 236 CP(*in, *out, f_owner); 237 CP(*in, *out, f_type); 238 CP(*in, *out, f_flags); 239 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 240 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 241 strlcpy(out->f_fstypename, 242 in->f_fstypename, MFSNAMELEN); 243 strlcpy(out->f_mntonname, 244 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 245 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 246 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 247 strlcpy(out->f_mntfromname, 248 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 249 } 250 #endif 251 252 #ifdef COMPAT_FREEBSD4 253 int 254 freebsd4_freebsd32_getfsstat(struct thread *td, 255 struct freebsd4_freebsd32_getfsstat_args *uap) 256 { 257 struct statfs *buf, *sp; 258 struct statfs32 stat32; 259 size_t count, size, copycount; 260 int error; 261 262 count = uap->bufsize / sizeof(struct statfs32); 263 size = count * sizeof(struct statfs); 264 error = kern_getfsstat(td, &buf, size, &count, UIO_SYSSPACE, uap->mode); 265 if (size > 0) { 266 sp = buf; 267 copycount = count; 268 while (copycount > 0 && error == 0) { 269 copy_statfs(sp, &stat32); 270 error = copyout(&stat32, uap->buf, sizeof(stat32)); 271 sp++; 272 uap->buf++; 273 copycount--; 274 } 275 free(buf, M_STATFS); 276 } 277 if (error == 0) 278 td->td_retval[0] = count; 279 return (error); 280 } 281 #endif 282 283 #ifdef COMPAT_FREEBSD10 284 int 285 freebsd10_freebsd32_pipe(struct thread *td, 286 struct freebsd10_freebsd32_pipe_args *uap) { 287 288 return (freebsd10_pipe(td, (struct freebsd10_pipe_args*)uap)); 289 } 290 #endif 291 292 int 293 freebsd32_sigaltstack(struct thread *td, 294 struct freebsd32_sigaltstack_args *uap) 295 { 296 struct sigaltstack32 s32; 297 struct sigaltstack ss, oss, *ssp; 298 int error; 299 300 if (uap->ss != NULL) { 301 error = copyin(uap->ss, &s32, sizeof(s32)); 302 if (error) 303 return (error); 304 PTRIN_CP(s32, ss, ss_sp); 305 CP(s32, ss, ss_size); 306 CP(s32, ss, ss_flags); 307 ssp = &ss; 308 } else 309 ssp = NULL; 310 error = kern_sigaltstack(td, ssp, &oss); 311 if (error == 0 && uap->oss != NULL) { 312 PTROUT_CP(oss, s32, ss_sp); 313 CP(oss, s32, ss_size); 314 CP(oss, s32, ss_flags); 315 error = copyout(&s32, uap->oss, sizeof(s32)); 316 } 317 return (error); 318 } 319 320 /* 321 * Custom version of exec_copyin_args() so that we can translate 322 * the pointers. 323 */ 324 int 325 freebsd32_exec_copyin_args(struct image_args *args, char *fname, 326 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 327 { 328 char *argp, *envp; 329 u_int32_t *p32, arg; 330 size_t length; 331 int error; 332 333 bzero(args, sizeof(*args)); 334 if (argv == NULL) 335 return (EFAULT); 336 337 /* 338 * Allocate demand-paged memory for the file name, argument, and 339 * environment strings. 340 */ 341 error = exec_alloc_args(args); 342 if (error != 0) 343 return (error); 344 345 /* 346 * Copy the file name. 347 */ 348 if (fname != NULL) { 349 args->fname = args->buf; 350 error = (segflg == UIO_SYSSPACE) ? 351 copystr(fname, args->fname, PATH_MAX, &length) : 352 copyinstr(fname, args->fname, PATH_MAX, &length); 353 if (error != 0) 354 goto err_exit; 355 } else 356 length = 0; 357 358 args->begin_argv = args->buf + length; 359 args->endp = args->begin_argv; 360 args->stringspace = ARG_MAX; 361 362 /* 363 * extract arguments first 364 */ 365 p32 = argv; 366 for (;;) { 367 error = copyin(p32++, &arg, sizeof(arg)); 368 if (error) 369 goto err_exit; 370 if (arg == 0) 371 break; 372 argp = PTRIN(arg); 373 error = copyinstr(argp, args->endp, args->stringspace, &length); 374 if (error) { 375 if (error == ENAMETOOLONG) 376 error = E2BIG; 377 goto err_exit; 378 } 379 args->stringspace -= length; 380 args->endp += length; 381 args->argc++; 382 } 383 384 args->begin_envv = args->endp; 385 386 /* 387 * extract environment strings 388 */ 389 if (envv) { 390 p32 = envv; 391 for (;;) { 392 error = copyin(p32++, &arg, sizeof(arg)); 393 if (error) 394 goto err_exit; 395 if (arg == 0) 396 break; 397 envp = PTRIN(arg); 398 error = copyinstr(envp, args->endp, args->stringspace, 399 &length); 400 if (error) { 401 if (error == ENAMETOOLONG) 402 error = E2BIG; 403 goto err_exit; 404 } 405 args->stringspace -= length; 406 args->endp += length; 407 args->envc++; 408 } 409 } 410 411 return (0); 412 413 err_exit: 414 exec_free_args(args); 415 return (error); 416 } 417 418 int 419 freebsd32_execve(struct thread *td, struct freebsd32_execve_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, uap->fname, UIO_USERSPACE, 429 uap->argv, uap->envv); 430 if (error == 0) 431 error = kern_execve(td, &eargs, NULL, oldvmspace); 432 post_execve(td, error, oldvmspace); 433 return (error); 434 } 435 436 int 437 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 438 { 439 struct image_args eargs; 440 struct vmspace *oldvmspace; 441 int error; 442 443 error = pre_execve(td, &oldvmspace); 444 if (error != 0) 445 return (error); 446 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 447 uap->argv, uap->envv); 448 if (error == 0) { 449 eargs.fd = uap->fd; 450 error = kern_execve(td, &eargs, NULL, oldvmspace); 451 } 452 post_execve(td, error, oldvmspace); 453 return (error); 454 } 455 456 int 457 freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 458 { 459 int prot; 460 461 prot = uap->prot; 462 #if defined(__amd64__) 463 if (i386_read_exec && (prot & PROT_READ) != 0) 464 prot |= PROT_EXEC; 465 #endif 466 return (kern_mprotect(td, (uintptr_t)PTRIN(uap->addr), uap->len, 467 prot)); 468 } 469 470 int 471 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 472 { 473 int prot; 474 475 prot = uap->prot; 476 #if defined(__amd64__) 477 if (i386_read_exec && (prot & PROT_READ)) 478 prot |= PROT_EXEC; 479 #endif 480 481 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot, 482 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos))); 483 } 484 485 #ifdef COMPAT_FREEBSD6 486 int 487 freebsd6_freebsd32_mmap(struct thread *td, 488 struct freebsd6_freebsd32_mmap_args *uap) 489 { 490 int prot; 491 492 prot = uap->prot; 493 #if defined(__amd64__) 494 if (i386_read_exec && (prot & PROT_READ)) 495 prot |= PROT_EXEC; 496 #endif 497 498 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot, 499 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos))); 500 } 501 #endif 502 503 int 504 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 505 { 506 struct itimerval itv, oitv, *itvp; 507 struct itimerval32 i32; 508 int error; 509 510 if (uap->itv != NULL) { 511 error = copyin(uap->itv, &i32, sizeof(i32)); 512 if (error) 513 return (error); 514 TV_CP(i32, itv, it_interval); 515 TV_CP(i32, itv, it_value); 516 itvp = &itv; 517 } else 518 itvp = NULL; 519 error = kern_setitimer(td, uap->which, itvp, &oitv); 520 if (error || uap->oitv == NULL) 521 return (error); 522 TV_CP(oitv, i32, it_interval); 523 TV_CP(oitv, i32, it_value); 524 return (copyout(&i32, uap->oitv, sizeof(i32))); 525 } 526 527 int 528 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 529 { 530 struct itimerval itv; 531 struct itimerval32 i32; 532 int error; 533 534 error = kern_getitimer(td, uap->which, &itv); 535 if (error || uap->itv == NULL) 536 return (error); 537 TV_CP(itv, i32, it_interval); 538 TV_CP(itv, i32, it_value); 539 return (copyout(&i32, uap->itv, sizeof(i32))); 540 } 541 542 int 543 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 544 { 545 struct timeval32 tv32; 546 struct timeval tv, *tvp; 547 int error; 548 549 if (uap->tv != NULL) { 550 error = copyin(uap->tv, &tv32, sizeof(tv32)); 551 if (error) 552 return (error); 553 CP(tv32, tv, tv_sec); 554 CP(tv32, tv, tv_usec); 555 tvp = &tv; 556 } else 557 tvp = NULL; 558 /* 559 * XXX Do pointers need PTRIN()? 560 */ 561 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 562 sizeof(int32_t) * 8)); 563 } 564 565 int 566 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 567 { 568 struct timespec32 ts32; 569 struct timespec ts; 570 struct timeval tv, *tvp; 571 sigset_t set, *uset; 572 int error; 573 574 if (uap->ts != NULL) { 575 error = copyin(uap->ts, &ts32, sizeof(ts32)); 576 if (error != 0) 577 return (error); 578 CP(ts32, ts, tv_sec); 579 CP(ts32, ts, tv_nsec); 580 TIMESPEC_TO_TIMEVAL(&tv, &ts); 581 tvp = &tv; 582 } else 583 tvp = NULL; 584 if (uap->sm != NULL) { 585 error = copyin(uap->sm, &set, sizeof(set)); 586 if (error != 0) 587 return (error); 588 uset = &set; 589 } else 590 uset = NULL; 591 /* 592 * XXX Do pointers need PTRIN()? 593 */ 594 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 595 uset, sizeof(int32_t) * 8); 596 return (error); 597 } 598 599 /* 600 * Copy 'count' items into the destination list pointed to by uap->eventlist. 601 */ 602 static int 603 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 604 { 605 struct freebsd32_kevent_args *uap; 606 struct kevent32 ks32[KQ_NEVENTS]; 607 int i, error = 0; 608 609 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 610 uap = (struct freebsd32_kevent_args *)arg; 611 612 for (i = 0; i < count; i++) { 613 CP(kevp[i], ks32[i], ident); 614 CP(kevp[i], ks32[i], filter); 615 CP(kevp[i], ks32[i], flags); 616 CP(kevp[i], ks32[i], fflags); 617 CP(kevp[i], ks32[i], data); 618 PTROUT_CP(kevp[i], ks32[i], udata); 619 } 620 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 621 if (error == 0) 622 uap->eventlist += count; 623 return (error); 624 } 625 626 /* 627 * Copy 'count' items from the list pointed to by uap->changelist. 628 */ 629 static int 630 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 631 { 632 struct freebsd32_kevent_args *uap; 633 struct kevent32 ks32[KQ_NEVENTS]; 634 int i, error = 0; 635 636 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 637 uap = (struct freebsd32_kevent_args *)arg; 638 639 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 640 if (error) 641 goto done; 642 uap->changelist += count; 643 644 for (i = 0; i < count; i++) { 645 CP(ks32[i], kevp[i], ident); 646 CP(ks32[i], kevp[i], filter); 647 CP(ks32[i], kevp[i], flags); 648 CP(ks32[i], kevp[i], fflags); 649 CP(ks32[i], kevp[i], data); 650 PTRIN_CP(ks32[i], kevp[i], udata); 651 } 652 done: 653 return (error); 654 } 655 656 int 657 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 658 { 659 struct timespec32 ts32; 660 struct timespec ts, *tsp; 661 struct kevent_copyops k_ops = { 662 .arg = uap, 663 .k_copyout = freebsd32_kevent_copyout, 664 .k_copyin = freebsd32_kevent_copyin, 665 }; 666 #ifdef KTRACE 667 struct kevent32 *eventlist = uap->eventlist; 668 #endif 669 int error; 670 671 672 if (uap->timeout) { 673 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 674 if (error) 675 return (error); 676 CP(ts32, ts, tv_sec); 677 CP(ts32, ts, tv_nsec); 678 tsp = &ts; 679 } else 680 tsp = NULL; 681 #ifdef KTRACE 682 if (KTRPOINT(td, KTR_STRUCT_ARRAY)) 683 ktrstructarray("kevent32", UIO_USERSPACE, uap->changelist, 684 uap->nchanges, sizeof(struct kevent32)); 685 #endif 686 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 687 &k_ops, tsp); 688 #ifdef KTRACE 689 if (error == 0 && KTRPOINT(td, KTR_STRUCT_ARRAY)) 690 ktrstructarray("kevent32", UIO_USERSPACE, eventlist, 691 td->td_retval[0], sizeof(struct kevent32)); 692 #endif 693 return (error); 694 } 695 696 int 697 freebsd32_gettimeofday(struct thread *td, 698 struct freebsd32_gettimeofday_args *uap) 699 { 700 struct timeval atv; 701 struct timeval32 atv32; 702 struct timezone rtz; 703 int error = 0; 704 705 if (uap->tp) { 706 microtime(&atv); 707 CP(atv, atv32, tv_sec); 708 CP(atv, atv32, tv_usec); 709 error = copyout(&atv32, uap->tp, sizeof (atv32)); 710 } 711 if (error == 0 && uap->tzp != NULL) { 712 rtz.tz_minuteswest = tz_minuteswest; 713 rtz.tz_dsttime = tz_dsttime; 714 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 715 } 716 return (error); 717 } 718 719 int 720 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 721 { 722 struct rusage32 s32; 723 struct rusage s; 724 int error; 725 726 error = kern_getrusage(td, uap->who, &s); 727 if (error == 0) { 728 freebsd32_rusage_out(&s, &s32); 729 error = copyout(&s32, uap->rusage, sizeof(s32)); 730 } 731 return (error); 732 } 733 734 static int 735 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 736 { 737 struct iovec32 iov32; 738 struct iovec *iov; 739 struct uio *uio; 740 u_int iovlen; 741 int error, i; 742 743 *uiop = NULL; 744 if (iovcnt > UIO_MAXIOV) 745 return (EINVAL); 746 iovlen = iovcnt * sizeof(struct iovec); 747 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 748 iov = (struct iovec *)(uio + 1); 749 for (i = 0; i < iovcnt; i++) { 750 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 751 if (error) { 752 free(uio, M_IOV); 753 return (error); 754 } 755 iov[i].iov_base = PTRIN(iov32.iov_base); 756 iov[i].iov_len = iov32.iov_len; 757 } 758 uio->uio_iov = iov; 759 uio->uio_iovcnt = iovcnt; 760 uio->uio_segflg = UIO_USERSPACE; 761 uio->uio_offset = -1; 762 uio->uio_resid = 0; 763 for (i = 0; i < iovcnt; i++) { 764 if (iov->iov_len > INT_MAX - uio->uio_resid) { 765 free(uio, M_IOV); 766 return (EINVAL); 767 } 768 uio->uio_resid += iov->iov_len; 769 iov++; 770 } 771 *uiop = uio; 772 return (0); 773 } 774 775 int 776 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 777 { 778 struct uio *auio; 779 int error; 780 781 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 782 if (error) 783 return (error); 784 error = kern_readv(td, uap->fd, auio); 785 free(auio, M_IOV); 786 return (error); 787 } 788 789 int 790 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 791 { 792 struct uio *auio; 793 int error; 794 795 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 796 if (error) 797 return (error); 798 error = kern_writev(td, uap->fd, auio); 799 free(auio, M_IOV); 800 return (error); 801 } 802 803 int 804 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 805 { 806 struct uio *auio; 807 int error; 808 809 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 810 if (error) 811 return (error); 812 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 813 free(auio, M_IOV); 814 return (error); 815 } 816 817 int 818 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 819 { 820 struct uio *auio; 821 int error; 822 823 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 824 if (error) 825 return (error); 826 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 827 free(auio, M_IOV); 828 return (error); 829 } 830 831 int 832 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 833 int error) 834 { 835 struct iovec32 iov32; 836 struct iovec *iov; 837 u_int iovlen; 838 int i; 839 840 *iovp = NULL; 841 if (iovcnt > UIO_MAXIOV) 842 return (error); 843 iovlen = iovcnt * sizeof(struct iovec); 844 iov = malloc(iovlen, M_IOV, M_WAITOK); 845 for (i = 0; i < iovcnt; i++) { 846 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 847 if (error) { 848 free(iov, M_IOV); 849 return (error); 850 } 851 iov[i].iov_base = PTRIN(iov32.iov_base); 852 iov[i].iov_len = iov32.iov_len; 853 } 854 *iovp = iov; 855 return (0); 856 } 857 858 static int 859 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 860 { 861 struct msghdr32 m32; 862 int error; 863 864 error = copyin(msg32, &m32, sizeof(m32)); 865 if (error) 866 return (error); 867 msg->msg_name = PTRIN(m32.msg_name); 868 msg->msg_namelen = m32.msg_namelen; 869 msg->msg_iov = PTRIN(m32.msg_iov); 870 msg->msg_iovlen = m32.msg_iovlen; 871 msg->msg_control = PTRIN(m32.msg_control); 872 msg->msg_controllen = m32.msg_controllen; 873 msg->msg_flags = m32.msg_flags; 874 return (0); 875 } 876 877 static int 878 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 879 { 880 struct msghdr32 m32; 881 int error; 882 883 m32.msg_name = PTROUT(msg->msg_name); 884 m32.msg_namelen = msg->msg_namelen; 885 m32.msg_iov = PTROUT(msg->msg_iov); 886 m32.msg_iovlen = msg->msg_iovlen; 887 m32.msg_control = PTROUT(msg->msg_control); 888 m32.msg_controllen = msg->msg_controllen; 889 m32.msg_flags = msg->msg_flags; 890 error = copyout(&m32, msg32, sizeof(m32)); 891 return (error); 892 } 893 894 #ifndef __mips__ 895 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 896 #else 897 #define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 898 #endif 899 #define FREEBSD32_ALIGN(p) \ 900 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 901 #define FREEBSD32_CMSG_SPACE(l) \ 902 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 903 904 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 905 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 906 907 static size_t 908 freebsd32_cmsg_convert(const struct cmsghdr *cm, void *data, socklen_t datalen) 909 { 910 size_t copylen; 911 union { 912 struct timespec32 ts; 913 struct timeval32 tv; 914 struct bintime32 bt; 915 } tmp32; 916 917 union { 918 struct timespec ts; 919 struct timeval tv; 920 struct bintime bt; 921 } *in; 922 923 in = data; 924 copylen = 0; 925 switch (cm->cmsg_level) { 926 case SOL_SOCKET: 927 switch (cm->cmsg_type) { 928 case SCM_TIMESTAMP: 929 TV_CP(*in, tmp32, tv); 930 copylen = sizeof(tmp32.tv); 931 break; 932 933 case SCM_BINTIME: 934 BT_CP(*in, tmp32, bt); 935 copylen = sizeof(tmp32.bt); 936 break; 937 938 case SCM_REALTIME: 939 case SCM_MONOTONIC: 940 TS_CP(*in, tmp32, ts); 941 copylen = sizeof(tmp32.ts); 942 break; 943 944 default: 945 break; 946 } 947 948 default: 949 break; 950 } 951 952 if (copylen == 0) 953 return (datalen); 954 955 KASSERT((datalen >= copylen), ("corrupted cmsghdr")); 956 957 bcopy(&tmp32, data, copylen); 958 return (copylen); 959 } 960 961 static int 962 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 963 { 964 struct cmsghdr *cm; 965 void *data; 966 socklen_t clen, datalen, datalen_out, oldclen; 967 int error; 968 caddr_t ctlbuf; 969 int len, maxlen, copylen; 970 struct mbuf *m; 971 error = 0; 972 973 len = msg->msg_controllen; 974 maxlen = msg->msg_controllen; 975 msg->msg_controllen = 0; 976 977 ctlbuf = msg->msg_control; 978 for (m = control; m != NULL && len > 0; m = m->m_next) { 979 cm = mtod(m, struct cmsghdr *); 980 clen = m->m_len; 981 while (cm != NULL) { 982 if (sizeof(struct cmsghdr) > clen || 983 cm->cmsg_len > clen) { 984 error = EINVAL; 985 break; 986 } 987 988 data = CMSG_DATA(cm); 989 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 990 datalen_out = freebsd32_cmsg_convert(cm, data, datalen); 991 992 /* 993 * Copy out the message header. Preserve the native 994 * message size in case we need to inspect the message 995 * contents later. 996 */ 997 copylen = sizeof(struct cmsghdr); 998 if (len < copylen) { 999 msg->msg_flags |= MSG_CTRUNC; 1000 m_dispose_extcontrolm(m); 1001 goto exit; 1002 } 1003 oldclen = cm->cmsg_len; 1004 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 1005 datalen_out; 1006 error = copyout(cm, ctlbuf, copylen); 1007 cm->cmsg_len = oldclen; 1008 if (error != 0) 1009 goto exit; 1010 1011 ctlbuf += FREEBSD32_ALIGN(copylen); 1012 len -= FREEBSD32_ALIGN(copylen); 1013 1014 copylen = datalen_out; 1015 if (len < copylen) { 1016 msg->msg_flags |= MSG_CTRUNC; 1017 m_dispose_extcontrolm(m); 1018 break; 1019 } 1020 1021 /* Copy out the message data. */ 1022 error = copyout(data, ctlbuf, copylen); 1023 if (error) 1024 goto exit; 1025 1026 ctlbuf += FREEBSD32_ALIGN(copylen); 1027 len -= FREEBSD32_ALIGN(copylen); 1028 1029 if (CMSG_SPACE(datalen) < clen) { 1030 clen -= CMSG_SPACE(datalen); 1031 cm = (struct cmsghdr *) 1032 ((caddr_t)cm + CMSG_SPACE(datalen)); 1033 } else { 1034 clen = 0; 1035 cm = NULL; 1036 } 1037 1038 msg->msg_controllen += 1039 FREEBSD32_CMSG_SPACE(datalen_out); 1040 } 1041 } 1042 if (len == 0 && m != NULL) { 1043 msg->msg_flags |= MSG_CTRUNC; 1044 m_dispose_extcontrolm(m); 1045 } 1046 1047 exit: 1048 return (error); 1049 } 1050 1051 int 1052 freebsd32_recvmsg(td, uap) 1053 struct thread *td; 1054 struct freebsd32_recvmsg_args /* { 1055 int s; 1056 struct msghdr32 *msg; 1057 int flags; 1058 } */ *uap; 1059 { 1060 struct msghdr msg; 1061 struct msghdr32 m32; 1062 struct iovec *uiov, *iov; 1063 struct mbuf *control = NULL; 1064 struct mbuf **controlp; 1065 1066 int error; 1067 error = copyin(uap->msg, &m32, sizeof(m32)); 1068 if (error) 1069 return (error); 1070 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1071 if (error) 1072 return (error); 1073 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1074 EMSGSIZE); 1075 if (error) 1076 return (error); 1077 msg.msg_flags = uap->flags; 1078 uiov = msg.msg_iov; 1079 msg.msg_iov = iov; 1080 1081 controlp = (msg.msg_control != NULL) ? &control : NULL; 1082 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1083 if (error == 0) { 1084 msg.msg_iov = uiov; 1085 1086 if (control != NULL) 1087 error = freebsd32_copy_msg_out(&msg, control); 1088 else 1089 msg.msg_controllen = 0; 1090 1091 if (error == 0) 1092 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1093 } 1094 free(iov, M_IOV); 1095 1096 if (control != NULL) { 1097 if (error != 0) 1098 m_dispose_extcontrolm(control); 1099 m_freem(control); 1100 } 1101 1102 return (error); 1103 } 1104 1105 /* 1106 * Copy-in the array of control messages constructed using alignment 1107 * and padding suitable for a 32-bit environment and construct an 1108 * mbuf using alignment and padding suitable for a 64-bit kernel. 1109 * The alignment and padding are defined indirectly by CMSG_DATA(), 1110 * CMSG_SPACE() and CMSG_LEN(). 1111 */ 1112 static int 1113 freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1114 { 1115 struct cmsghdr *cm; 1116 struct mbuf *m; 1117 void *in, *in1, *md; 1118 u_int msglen, outlen; 1119 int error; 1120 1121 if (buflen > MCLBYTES) 1122 return (EINVAL); 1123 1124 in = malloc(buflen, M_TEMP, M_WAITOK); 1125 error = copyin(buf, in, buflen); 1126 if (error != 0) 1127 goto out; 1128 1129 /* 1130 * Make a pass over the input buffer to determine the amount of space 1131 * required for 64 bit-aligned copies of the control messages. 1132 */ 1133 in1 = in; 1134 outlen = 0; 1135 while (buflen > 0) { 1136 if (buflen < sizeof(*cm)) { 1137 error = EINVAL; 1138 break; 1139 } 1140 cm = (struct cmsghdr *)in1; 1141 if (cm->cmsg_len < FREEBSD32_ALIGN(sizeof(*cm))) { 1142 error = EINVAL; 1143 break; 1144 } 1145 msglen = FREEBSD32_ALIGN(cm->cmsg_len); 1146 if (msglen > buflen || msglen < cm->cmsg_len) { 1147 error = EINVAL; 1148 break; 1149 } 1150 buflen -= msglen; 1151 1152 in1 = (char *)in1 + msglen; 1153 outlen += CMSG_ALIGN(sizeof(*cm)) + 1154 CMSG_ALIGN(msglen - FREEBSD32_ALIGN(sizeof(*cm))); 1155 } 1156 if (error == 0 && outlen > MCLBYTES) { 1157 /* 1158 * XXXMJ This implies that the upper limit on 32-bit aligned 1159 * control messages is less than MCLBYTES, and so we are not 1160 * perfectly compatible. However, there is no platform 1161 * guarantee that mbuf clusters larger than MCLBYTES can be 1162 * allocated. 1163 */ 1164 error = EINVAL; 1165 } 1166 if (error != 0) 1167 goto out; 1168 1169 m = m_get2(outlen, M_WAITOK, MT_CONTROL, 0); 1170 m->m_len = outlen; 1171 md = mtod(m, void *); 1172 1173 /* 1174 * Make a second pass over input messages, copying them into the output 1175 * buffer. 1176 */ 1177 in1 = in; 1178 while (outlen > 0) { 1179 /* Copy the message header and align the length field. */ 1180 cm = md; 1181 memcpy(cm, in1, sizeof(*cm)); 1182 msglen = cm->cmsg_len - FREEBSD32_ALIGN(sizeof(*cm)); 1183 cm->cmsg_len = CMSG_ALIGN(sizeof(*cm)) + msglen; 1184 1185 /* Copy the message body. */ 1186 in1 = (char *)in1 + FREEBSD32_ALIGN(sizeof(*cm)); 1187 md = (char *)md + CMSG_ALIGN(sizeof(*cm)); 1188 memcpy(md, in1, msglen); 1189 in1 = (char *)in1 + FREEBSD32_ALIGN(msglen); 1190 md = (char *)md + CMSG_ALIGN(msglen); 1191 KASSERT(outlen >= CMSG_ALIGN(sizeof(*cm)) + CMSG_ALIGN(msglen), 1192 ("outlen %u underflow, msglen %u", outlen, msglen)); 1193 outlen -= CMSG_ALIGN(sizeof(*cm)) + CMSG_ALIGN(msglen); 1194 } 1195 1196 *mp = m; 1197 out: 1198 free(in, M_TEMP); 1199 return (error); 1200 } 1201 1202 int 1203 freebsd32_sendmsg(struct thread *td, 1204 struct freebsd32_sendmsg_args *uap) 1205 { 1206 struct msghdr msg; 1207 struct msghdr32 m32; 1208 struct iovec *iov; 1209 struct mbuf *control = NULL; 1210 struct sockaddr *to = NULL; 1211 int error; 1212 1213 error = copyin(uap->msg, &m32, sizeof(m32)); 1214 if (error) 1215 return (error); 1216 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1217 if (error) 1218 return (error); 1219 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1220 EMSGSIZE); 1221 if (error) 1222 return (error); 1223 msg.msg_iov = iov; 1224 if (msg.msg_name != NULL) { 1225 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1226 if (error) { 1227 to = NULL; 1228 goto out; 1229 } 1230 msg.msg_name = to; 1231 } 1232 1233 if (msg.msg_control) { 1234 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1235 error = EINVAL; 1236 goto out; 1237 } 1238 1239 error = freebsd32_copyin_control(&control, msg.msg_control, 1240 msg.msg_controllen); 1241 if (error) 1242 goto out; 1243 1244 msg.msg_control = NULL; 1245 msg.msg_controllen = 0; 1246 } 1247 1248 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1249 UIO_USERSPACE); 1250 1251 out: 1252 free(iov, M_IOV); 1253 if (to) 1254 free(to, M_SONAME); 1255 return (error); 1256 } 1257 1258 int 1259 freebsd32_recvfrom(struct thread *td, 1260 struct freebsd32_recvfrom_args *uap) 1261 { 1262 struct msghdr msg; 1263 struct iovec aiov; 1264 int error; 1265 1266 if (uap->fromlenaddr) { 1267 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1268 sizeof(msg.msg_namelen)); 1269 if (error) 1270 return (error); 1271 } else { 1272 msg.msg_namelen = 0; 1273 } 1274 1275 msg.msg_name = PTRIN(uap->from); 1276 msg.msg_iov = &aiov; 1277 msg.msg_iovlen = 1; 1278 aiov.iov_base = PTRIN(uap->buf); 1279 aiov.iov_len = uap->len; 1280 msg.msg_control = NULL; 1281 msg.msg_flags = uap->flags; 1282 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1283 if (error == 0 && uap->fromlenaddr) 1284 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1285 sizeof (msg.msg_namelen)); 1286 return (error); 1287 } 1288 1289 int 1290 freebsd32_settimeofday(struct thread *td, 1291 struct freebsd32_settimeofday_args *uap) 1292 { 1293 struct timeval32 tv32; 1294 struct timeval tv, *tvp; 1295 struct timezone tz, *tzp; 1296 int error; 1297 1298 if (uap->tv) { 1299 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1300 if (error) 1301 return (error); 1302 CP(tv32, tv, tv_sec); 1303 CP(tv32, tv, tv_usec); 1304 tvp = &tv; 1305 } else 1306 tvp = NULL; 1307 if (uap->tzp) { 1308 error = copyin(uap->tzp, &tz, sizeof(tz)); 1309 if (error) 1310 return (error); 1311 tzp = &tz; 1312 } else 1313 tzp = NULL; 1314 return (kern_settimeofday(td, tvp, tzp)); 1315 } 1316 1317 int 1318 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1319 { 1320 struct timeval32 s32[2]; 1321 struct timeval s[2], *sp; 1322 int error; 1323 1324 if (uap->tptr != NULL) { 1325 error = copyin(uap->tptr, s32, sizeof(s32)); 1326 if (error) 1327 return (error); 1328 CP(s32[0], s[0], tv_sec); 1329 CP(s32[0], s[0], tv_usec); 1330 CP(s32[1], s[1], tv_sec); 1331 CP(s32[1], s[1], tv_usec); 1332 sp = s; 1333 } else 1334 sp = NULL; 1335 return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE, 1336 sp, UIO_SYSSPACE)); 1337 } 1338 1339 int 1340 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1341 { 1342 struct timeval32 s32[2]; 1343 struct timeval s[2], *sp; 1344 int error; 1345 1346 if (uap->tptr != NULL) { 1347 error = copyin(uap->tptr, s32, sizeof(s32)); 1348 if (error) 1349 return (error); 1350 CP(s32[0], s[0], tv_sec); 1351 CP(s32[0], s[0], tv_usec); 1352 CP(s32[1], s[1], tv_sec); 1353 CP(s32[1], s[1], tv_usec); 1354 sp = s; 1355 } else 1356 sp = NULL; 1357 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1358 } 1359 1360 int 1361 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1362 { 1363 struct timeval32 s32[2]; 1364 struct timeval s[2], *sp; 1365 int error; 1366 1367 if (uap->tptr != NULL) { 1368 error = copyin(uap->tptr, s32, sizeof(s32)); 1369 if (error) 1370 return (error); 1371 CP(s32[0], s[0], tv_sec); 1372 CP(s32[0], s[0], tv_usec); 1373 CP(s32[1], s[1], tv_sec); 1374 CP(s32[1], s[1], tv_usec); 1375 sp = s; 1376 } else 1377 sp = NULL; 1378 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1379 } 1380 1381 int 1382 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1383 { 1384 struct timeval32 s32[2]; 1385 struct timeval s[2], *sp; 1386 int error; 1387 1388 if (uap->times != NULL) { 1389 error = copyin(uap->times, s32, sizeof(s32)); 1390 if (error) 1391 return (error); 1392 CP(s32[0], s[0], tv_sec); 1393 CP(s32[0], s[0], tv_usec); 1394 CP(s32[1], s[1], tv_sec); 1395 CP(s32[1], s[1], tv_usec); 1396 sp = s; 1397 } else 1398 sp = NULL; 1399 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1400 sp, UIO_SYSSPACE)); 1401 } 1402 1403 int 1404 freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap) 1405 { 1406 struct timespec32 ts32[2]; 1407 struct timespec ts[2], *tsp; 1408 int error; 1409 1410 if (uap->times != NULL) { 1411 error = copyin(uap->times, ts32, sizeof(ts32)); 1412 if (error) 1413 return (error); 1414 CP(ts32[0], ts[0], tv_sec); 1415 CP(ts32[0], ts[0], tv_nsec); 1416 CP(ts32[1], ts[1], tv_sec); 1417 CP(ts32[1], ts[1], tv_nsec); 1418 tsp = ts; 1419 } else 1420 tsp = NULL; 1421 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE)); 1422 } 1423 1424 int 1425 freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap) 1426 { 1427 struct timespec32 ts32[2]; 1428 struct timespec ts[2], *tsp; 1429 int error; 1430 1431 if (uap->times != NULL) { 1432 error = copyin(uap->times, ts32, sizeof(ts32)); 1433 if (error) 1434 return (error); 1435 CP(ts32[0], ts[0], tv_sec); 1436 CP(ts32[0], ts[0], tv_nsec); 1437 CP(ts32[1], ts[1], tv_sec); 1438 CP(ts32[1], ts[1], tv_nsec); 1439 tsp = ts; 1440 } else 1441 tsp = NULL; 1442 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE, 1443 tsp, UIO_SYSSPACE, uap->flag)); 1444 } 1445 1446 int 1447 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1448 { 1449 struct timeval32 tv32; 1450 struct timeval delta, olddelta, *deltap; 1451 int error; 1452 1453 if (uap->delta) { 1454 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1455 if (error) 1456 return (error); 1457 CP(tv32, delta, tv_sec); 1458 CP(tv32, delta, tv_usec); 1459 deltap = δ 1460 } else 1461 deltap = NULL; 1462 error = kern_adjtime(td, deltap, &olddelta); 1463 if (uap->olddelta && error == 0) { 1464 CP(olddelta, tv32, tv_sec); 1465 CP(olddelta, tv32, tv_usec); 1466 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1467 } 1468 return (error); 1469 } 1470 1471 #ifdef COMPAT_FREEBSD4 1472 int 1473 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1474 { 1475 struct statfs32 s32; 1476 struct statfs *sp; 1477 int error; 1478 1479 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1480 error = kern_statfs(td, uap->path, UIO_USERSPACE, sp); 1481 if (error == 0) { 1482 copy_statfs(sp, &s32); 1483 error = copyout(&s32, uap->buf, sizeof(s32)); 1484 } 1485 free(sp, M_STATFS); 1486 return (error); 1487 } 1488 #endif 1489 1490 #ifdef COMPAT_FREEBSD4 1491 int 1492 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1493 { 1494 struct statfs32 s32; 1495 struct statfs *sp; 1496 int error; 1497 1498 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1499 error = kern_fstatfs(td, uap->fd, sp); 1500 if (error == 0) { 1501 copy_statfs(sp, &s32); 1502 error = copyout(&s32, uap->buf, sizeof(s32)); 1503 } 1504 free(sp, M_STATFS); 1505 return (error); 1506 } 1507 #endif 1508 1509 #ifdef COMPAT_FREEBSD4 1510 int 1511 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1512 { 1513 struct statfs32 s32; 1514 struct statfs *sp; 1515 fhandle_t fh; 1516 int error; 1517 1518 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1519 return (error); 1520 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1521 error = kern_fhstatfs(td, fh, sp); 1522 if (error == 0) { 1523 copy_statfs(sp, &s32); 1524 error = copyout(&s32, uap->buf, sizeof(s32)); 1525 } 1526 free(sp, M_STATFS); 1527 return (error); 1528 } 1529 #endif 1530 1531 int 1532 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1533 { 1534 1535 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte, 1536 PAIR32TO64(off_t, uap->offset))); 1537 } 1538 1539 int 1540 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1541 { 1542 1543 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte, 1544 PAIR32TO64(off_t, uap->offset))); 1545 } 1546 1547 #ifdef COMPAT_43 1548 int 1549 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1550 { 1551 1552 return (kern_lseek(td, uap->fd, uap->offset, uap->whence)); 1553 } 1554 #endif 1555 1556 int 1557 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1558 { 1559 int error; 1560 off_t pos; 1561 1562 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset), 1563 uap->whence); 1564 /* Expand the quad return into two parts for eax and edx */ 1565 pos = td->td_uretoff.tdu_off; 1566 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1567 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1568 return error; 1569 } 1570 1571 int 1572 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1573 { 1574 1575 return (kern_truncate(td, uap->path, UIO_USERSPACE, 1576 PAIR32TO64(off_t, uap->length))); 1577 } 1578 1579 int 1580 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1581 { 1582 1583 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length))); 1584 } 1585 1586 #ifdef COMPAT_43 1587 int 1588 ofreebsd32_getdirentries(struct thread *td, 1589 struct ofreebsd32_getdirentries_args *uap) 1590 { 1591 struct ogetdirentries_args ap; 1592 int error; 1593 long loff; 1594 int32_t loff_cut; 1595 1596 ap.fd = uap->fd; 1597 ap.buf = uap->buf; 1598 ap.count = uap->count; 1599 ap.basep = NULL; 1600 error = kern_ogetdirentries(td, &ap, &loff); 1601 if (error == 0) { 1602 loff_cut = loff; 1603 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1604 } 1605 return (error); 1606 } 1607 #endif 1608 1609 int 1610 freebsd32_getdirentries(struct thread *td, 1611 struct freebsd32_getdirentries_args *uap) 1612 { 1613 long base; 1614 int32_t base32; 1615 int error; 1616 1617 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1618 NULL, UIO_USERSPACE); 1619 if (error) 1620 return (error); 1621 if (uap->basep != NULL) { 1622 base32 = base; 1623 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1624 } 1625 return (error); 1626 } 1627 1628 #ifdef COMPAT_FREEBSD6 1629 /* versions with the 'int pad' argument */ 1630 int 1631 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1632 { 1633 1634 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte, 1635 PAIR32TO64(off_t, uap->offset))); 1636 } 1637 1638 int 1639 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1640 { 1641 1642 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte, 1643 PAIR32TO64(off_t, uap->offset))); 1644 } 1645 1646 int 1647 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1648 { 1649 int error; 1650 off_t pos; 1651 1652 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset), 1653 uap->whence); 1654 /* Expand the quad return into two parts for eax and edx */ 1655 pos = *(off_t *)(td->td_retval); 1656 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1657 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1658 return error; 1659 } 1660 1661 int 1662 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1663 { 1664 1665 return (kern_truncate(td, uap->path, UIO_USERSPACE, 1666 PAIR32TO64(off_t, uap->length))); 1667 } 1668 1669 int 1670 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1671 { 1672 1673 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length))); 1674 } 1675 #endif /* COMPAT_FREEBSD6 */ 1676 1677 struct sf_hdtr32 { 1678 uint32_t headers; 1679 int hdr_cnt; 1680 uint32_t trailers; 1681 int trl_cnt; 1682 }; 1683 1684 static int 1685 freebsd32_do_sendfile(struct thread *td, 1686 struct freebsd32_sendfile_args *uap, int compat) 1687 { 1688 struct sf_hdtr32 hdtr32; 1689 struct sf_hdtr hdtr; 1690 struct uio *hdr_uio, *trl_uio; 1691 struct file *fp; 1692 cap_rights_t rights; 1693 struct iovec32 *iov32; 1694 off_t offset, sbytes; 1695 int error; 1696 1697 offset = PAIR32TO64(off_t, uap->offset); 1698 if (offset < 0) 1699 return (EINVAL); 1700 1701 hdr_uio = trl_uio = NULL; 1702 1703 if (uap->hdtr != NULL) { 1704 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1705 if (error) 1706 goto out; 1707 PTRIN_CP(hdtr32, hdtr, headers); 1708 CP(hdtr32, hdtr, hdr_cnt); 1709 PTRIN_CP(hdtr32, hdtr, trailers); 1710 CP(hdtr32, hdtr, trl_cnt); 1711 1712 if (hdtr.headers != NULL) { 1713 iov32 = PTRIN(hdtr32.headers); 1714 error = freebsd32_copyinuio(iov32, 1715 hdtr32.hdr_cnt, &hdr_uio); 1716 if (error) 1717 goto out; 1718 #ifdef COMPAT_FREEBSD4 1719 /* 1720 * In FreeBSD < 5.0 the nbytes to send also included 1721 * the header. If compat is specified subtract the 1722 * header size from nbytes. 1723 */ 1724 if (compat) { 1725 if (uap->nbytes > hdr_uio->uio_resid) 1726 uap->nbytes -= hdr_uio->uio_resid; 1727 else 1728 uap->nbytes = 0; 1729 } 1730 #endif 1731 } 1732 if (hdtr.trailers != NULL) { 1733 iov32 = PTRIN(hdtr32.trailers); 1734 error = freebsd32_copyinuio(iov32, 1735 hdtr32.trl_cnt, &trl_uio); 1736 if (error) 1737 goto out; 1738 } 1739 } 1740 1741 AUDIT_ARG_FD(uap->fd); 1742 1743 if ((error = fget_read(td, uap->fd, 1744 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) 1745 goto out; 1746 1747 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1748 uap->nbytes, &sbytes, uap->flags, td); 1749 fdrop(fp, td); 1750 1751 if (uap->sbytes != NULL) 1752 copyout(&sbytes, uap->sbytes, sizeof(off_t)); 1753 1754 out: 1755 if (hdr_uio) 1756 free(hdr_uio, M_IOV); 1757 if (trl_uio) 1758 free(trl_uio, M_IOV); 1759 return (error); 1760 } 1761 1762 #ifdef COMPAT_FREEBSD4 1763 int 1764 freebsd4_freebsd32_sendfile(struct thread *td, 1765 struct freebsd4_freebsd32_sendfile_args *uap) 1766 { 1767 return (freebsd32_do_sendfile(td, 1768 (struct freebsd32_sendfile_args *)uap, 1)); 1769 } 1770 #endif 1771 1772 int 1773 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1774 { 1775 1776 return (freebsd32_do_sendfile(td, uap, 0)); 1777 } 1778 1779 static void 1780 copy_stat(struct stat *in, struct stat32 *out) 1781 { 1782 1783 bzero(out, sizeof(*out)); 1784 CP(*in, *out, st_dev); 1785 CP(*in, *out, st_ino); 1786 CP(*in, *out, st_mode); 1787 CP(*in, *out, st_nlink); 1788 CP(*in, *out, st_uid); 1789 CP(*in, *out, st_gid); 1790 CP(*in, *out, st_rdev); 1791 TS_CP(*in, *out, st_atim); 1792 TS_CP(*in, *out, st_mtim); 1793 TS_CP(*in, *out, st_ctim); 1794 CP(*in, *out, st_size); 1795 CP(*in, *out, st_blocks); 1796 CP(*in, *out, st_blksize); 1797 CP(*in, *out, st_flags); 1798 CP(*in, *out, st_gen); 1799 TS_CP(*in, *out, st_birthtim); 1800 } 1801 1802 #ifdef COMPAT_43 1803 static void 1804 copy_ostat(struct stat *in, struct ostat32 *out) 1805 { 1806 1807 bzero(out, sizeof(*out)); 1808 CP(*in, *out, st_dev); 1809 CP(*in, *out, st_ino); 1810 CP(*in, *out, st_mode); 1811 CP(*in, *out, st_nlink); 1812 CP(*in, *out, st_uid); 1813 CP(*in, *out, st_gid); 1814 CP(*in, *out, st_rdev); 1815 CP(*in, *out, st_size); 1816 TS_CP(*in, *out, st_atim); 1817 TS_CP(*in, *out, st_mtim); 1818 TS_CP(*in, *out, st_ctim); 1819 CP(*in, *out, st_blksize); 1820 CP(*in, *out, st_blocks); 1821 CP(*in, *out, st_flags); 1822 CP(*in, *out, st_gen); 1823 } 1824 #endif 1825 1826 int 1827 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1828 { 1829 struct stat sb; 1830 struct stat32 sb32; 1831 int error; 1832 1833 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1834 &sb, NULL); 1835 if (error) 1836 return (error); 1837 copy_stat(&sb, &sb32); 1838 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1839 return (error); 1840 } 1841 1842 #ifdef COMPAT_43 1843 int 1844 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1845 { 1846 struct stat sb; 1847 struct ostat32 sb32; 1848 int error; 1849 1850 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1851 &sb, NULL); 1852 if (error) 1853 return (error); 1854 copy_ostat(&sb, &sb32); 1855 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1856 return (error); 1857 } 1858 #endif 1859 1860 int 1861 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1862 { 1863 struct stat ub; 1864 struct stat32 ub32; 1865 int error; 1866 1867 error = kern_fstat(td, uap->fd, &ub); 1868 if (error) 1869 return (error); 1870 copy_stat(&ub, &ub32); 1871 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1872 return (error); 1873 } 1874 1875 #ifdef COMPAT_43 1876 int 1877 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1878 { 1879 struct stat ub; 1880 struct ostat32 ub32; 1881 int error; 1882 1883 error = kern_fstat(td, uap->fd, &ub); 1884 if (error) 1885 return (error); 1886 copy_ostat(&ub, &ub32); 1887 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1888 return (error); 1889 } 1890 #endif 1891 1892 int 1893 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1894 { 1895 struct stat ub; 1896 struct stat32 ub32; 1897 int error; 1898 1899 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, 1900 &ub, NULL); 1901 if (error) 1902 return (error); 1903 copy_stat(&ub, &ub32); 1904 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1905 return (error); 1906 } 1907 1908 int 1909 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1910 { 1911 struct stat sb; 1912 struct stat32 sb32; 1913 int error; 1914 1915 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1916 UIO_USERSPACE, &sb, NULL); 1917 if (error) 1918 return (error); 1919 copy_stat(&sb, &sb32); 1920 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1921 return (error); 1922 } 1923 1924 #ifdef COMPAT_43 1925 int 1926 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1927 { 1928 struct stat sb; 1929 struct ostat32 sb32; 1930 int error; 1931 1932 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1933 UIO_USERSPACE, &sb, NULL); 1934 if (error) 1935 return (error); 1936 copy_ostat(&sb, &sb32); 1937 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1938 return (error); 1939 } 1940 #endif 1941 1942 int 1943 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1944 { 1945 int error, name[CTL_MAXNAME]; 1946 size_t j, oldlen; 1947 uint32_t tmp; 1948 1949 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1950 return (EINVAL); 1951 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1952 if (error) 1953 return (error); 1954 if (uap->oldlenp) { 1955 error = fueword32(uap->oldlenp, &tmp); 1956 oldlen = tmp; 1957 } else { 1958 oldlen = 0; 1959 } 1960 if (error != 0) 1961 return (EFAULT); 1962 error = userland_sysctl(td, name, uap->namelen, 1963 uap->old, &oldlen, 1, 1964 uap->new, uap->newlen, &j, SCTL_MASK32); 1965 if (error && error != ENOMEM) 1966 return (error); 1967 if (uap->oldlenp) 1968 suword32(uap->oldlenp, j); 1969 return (0); 1970 } 1971 1972 int 1973 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1974 { 1975 uint32_t version; 1976 int error; 1977 struct jail j; 1978 1979 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1980 if (error) 1981 return (error); 1982 1983 switch (version) { 1984 case 0: 1985 { 1986 /* FreeBSD single IPv4 jails. */ 1987 struct jail32_v0 j32_v0; 1988 1989 bzero(&j, sizeof(struct jail)); 1990 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1991 if (error) 1992 return (error); 1993 CP(j32_v0, j, version); 1994 PTRIN_CP(j32_v0, j, path); 1995 PTRIN_CP(j32_v0, j, hostname); 1996 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1997 break; 1998 } 1999 2000 case 1: 2001 /* 2002 * Version 1 was used by multi-IPv4 jail implementations 2003 * that never made it into the official kernel. 2004 */ 2005 return (EINVAL); 2006 2007 case 2: /* JAIL_API_VERSION */ 2008 { 2009 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 2010 struct jail32 j32; 2011 2012 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 2013 if (error) 2014 return (error); 2015 CP(j32, j, version); 2016 PTRIN_CP(j32, j, path); 2017 PTRIN_CP(j32, j, hostname); 2018 PTRIN_CP(j32, j, jailname); 2019 CP(j32, j, ip4s); 2020 CP(j32, j, ip6s); 2021 PTRIN_CP(j32, j, ip4); 2022 PTRIN_CP(j32, j, ip6); 2023 break; 2024 } 2025 2026 default: 2027 /* Sci-Fi jails are not supported, sorry. */ 2028 return (EINVAL); 2029 } 2030 return (kern_jail(td, &j)); 2031 } 2032 2033 int 2034 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 2035 { 2036 struct uio *auio; 2037 int error; 2038 2039 /* Check that we have an even number of iovecs. */ 2040 if (uap->iovcnt & 1) 2041 return (EINVAL); 2042 2043 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2044 if (error) 2045 return (error); 2046 error = kern_jail_set(td, auio, uap->flags); 2047 free(auio, M_IOV); 2048 return (error); 2049 } 2050 2051 int 2052 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 2053 { 2054 struct iovec32 iov32; 2055 struct uio *auio; 2056 int error, i; 2057 2058 /* Check that we have an even number of iovecs. */ 2059 if (uap->iovcnt & 1) 2060 return (EINVAL); 2061 2062 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2063 if (error) 2064 return (error); 2065 error = kern_jail_get(td, auio, uap->flags); 2066 if (error == 0) 2067 for (i = 0; i < uap->iovcnt; i++) { 2068 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 2069 CP(auio->uio_iov[i], iov32, iov_len); 2070 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 2071 if (error != 0) 2072 break; 2073 } 2074 free(auio, M_IOV); 2075 return (error); 2076 } 2077 2078 int 2079 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2080 { 2081 struct sigaction32 s32; 2082 struct sigaction sa, osa, *sap; 2083 int error; 2084 2085 if (uap->act) { 2086 error = copyin(uap->act, &s32, sizeof(s32)); 2087 if (error) 2088 return (error); 2089 sa.sa_handler = PTRIN(s32.sa_u); 2090 CP(s32, sa, sa_flags); 2091 CP(s32, sa, sa_mask); 2092 sap = &sa; 2093 } else 2094 sap = NULL; 2095 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2096 if (error == 0 && uap->oact != NULL) { 2097 s32.sa_u = PTROUT(osa.sa_handler); 2098 CP(osa, s32, sa_flags); 2099 CP(osa, s32, sa_mask); 2100 error = copyout(&s32, uap->oact, sizeof(s32)); 2101 } 2102 return (error); 2103 } 2104 2105 #ifdef COMPAT_FREEBSD4 2106 int 2107 freebsd4_freebsd32_sigaction(struct thread *td, 2108 struct freebsd4_freebsd32_sigaction_args *uap) 2109 { 2110 struct sigaction32 s32; 2111 struct sigaction sa, osa, *sap; 2112 int error; 2113 2114 if (uap->act) { 2115 error = copyin(uap->act, &s32, sizeof(s32)); 2116 if (error) 2117 return (error); 2118 sa.sa_handler = PTRIN(s32.sa_u); 2119 CP(s32, sa, sa_flags); 2120 CP(s32, sa, sa_mask); 2121 sap = &sa; 2122 } else 2123 sap = NULL; 2124 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2125 if (error == 0 && uap->oact != NULL) { 2126 s32.sa_u = PTROUT(osa.sa_handler); 2127 CP(osa, s32, sa_flags); 2128 CP(osa, s32, sa_mask); 2129 error = copyout(&s32, uap->oact, sizeof(s32)); 2130 } 2131 return (error); 2132 } 2133 #endif 2134 2135 #ifdef COMPAT_43 2136 struct osigaction32 { 2137 u_int32_t sa_u; 2138 osigset_t sa_mask; 2139 int sa_flags; 2140 }; 2141 2142 #define ONSIG 32 2143 2144 int 2145 ofreebsd32_sigaction(struct thread *td, 2146 struct ofreebsd32_sigaction_args *uap) 2147 { 2148 struct osigaction32 s32; 2149 struct sigaction sa, osa, *sap; 2150 int error; 2151 2152 if (uap->signum <= 0 || uap->signum >= ONSIG) 2153 return (EINVAL); 2154 2155 if (uap->nsa) { 2156 error = copyin(uap->nsa, &s32, sizeof(s32)); 2157 if (error) 2158 return (error); 2159 sa.sa_handler = PTRIN(s32.sa_u); 2160 CP(s32, sa, sa_flags); 2161 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2162 sap = &sa; 2163 } else 2164 sap = NULL; 2165 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2166 if (error == 0 && uap->osa != NULL) { 2167 s32.sa_u = PTROUT(osa.sa_handler); 2168 CP(osa, s32, sa_flags); 2169 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2170 error = copyout(&s32, uap->osa, sizeof(s32)); 2171 } 2172 return (error); 2173 } 2174 2175 int 2176 ofreebsd32_sigprocmask(struct thread *td, 2177 struct ofreebsd32_sigprocmask_args *uap) 2178 { 2179 sigset_t set, oset; 2180 int error; 2181 2182 OSIG2SIG(uap->mask, set); 2183 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2184 SIG2OSIG(oset, td->td_retval[0]); 2185 return (error); 2186 } 2187 2188 int 2189 ofreebsd32_sigpending(struct thread *td, 2190 struct ofreebsd32_sigpending_args *uap) 2191 { 2192 struct proc *p = td->td_proc; 2193 sigset_t siglist; 2194 2195 PROC_LOCK(p); 2196 siglist = p->p_siglist; 2197 SIGSETOR(siglist, td->td_siglist); 2198 PROC_UNLOCK(p); 2199 SIG2OSIG(siglist, td->td_retval[0]); 2200 return (0); 2201 } 2202 2203 struct sigvec32 { 2204 u_int32_t sv_handler; 2205 int sv_mask; 2206 int sv_flags; 2207 }; 2208 2209 int 2210 ofreebsd32_sigvec(struct thread *td, 2211 struct ofreebsd32_sigvec_args *uap) 2212 { 2213 struct sigvec32 vec; 2214 struct sigaction sa, osa, *sap; 2215 int error; 2216 2217 if (uap->signum <= 0 || uap->signum >= ONSIG) 2218 return (EINVAL); 2219 2220 if (uap->nsv) { 2221 error = copyin(uap->nsv, &vec, sizeof(vec)); 2222 if (error) 2223 return (error); 2224 sa.sa_handler = PTRIN(vec.sv_handler); 2225 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2226 sa.sa_flags = vec.sv_flags; 2227 sa.sa_flags ^= SA_RESTART; 2228 sap = &sa; 2229 } else 2230 sap = NULL; 2231 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2232 if (error == 0 && uap->osv != NULL) { 2233 vec.sv_handler = PTROUT(osa.sa_handler); 2234 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2235 vec.sv_flags = osa.sa_flags; 2236 vec.sv_flags &= ~SA_NOCLDWAIT; 2237 vec.sv_flags ^= SA_RESTART; 2238 error = copyout(&vec, uap->osv, sizeof(vec)); 2239 } 2240 return (error); 2241 } 2242 2243 int 2244 ofreebsd32_sigblock(struct thread *td, 2245 struct ofreebsd32_sigblock_args *uap) 2246 { 2247 sigset_t set, oset; 2248 2249 OSIG2SIG(uap->mask, set); 2250 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2251 SIG2OSIG(oset, td->td_retval[0]); 2252 return (0); 2253 } 2254 2255 int 2256 ofreebsd32_sigsetmask(struct thread *td, 2257 struct ofreebsd32_sigsetmask_args *uap) 2258 { 2259 sigset_t set, oset; 2260 2261 OSIG2SIG(uap->mask, set); 2262 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2263 SIG2OSIG(oset, td->td_retval[0]); 2264 return (0); 2265 } 2266 2267 int 2268 ofreebsd32_sigsuspend(struct thread *td, 2269 struct ofreebsd32_sigsuspend_args *uap) 2270 { 2271 sigset_t mask; 2272 2273 OSIG2SIG(uap->mask, mask); 2274 return (kern_sigsuspend(td, mask)); 2275 } 2276 2277 struct sigstack32 { 2278 u_int32_t ss_sp; 2279 int ss_onstack; 2280 }; 2281 2282 int 2283 ofreebsd32_sigstack(struct thread *td, 2284 struct ofreebsd32_sigstack_args *uap) 2285 { 2286 struct sigstack32 s32; 2287 struct sigstack nss, oss; 2288 int error = 0, unss; 2289 2290 if (uap->nss != NULL) { 2291 error = copyin(uap->nss, &s32, sizeof(s32)); 2292 if (error) 2293 return (error); 2294 nss.ss_sp = PTRIN(s32.ss_sp); 2295 CP(s32, nss, ss_onstack); 2296 unss = 1; 2297 } else { 2298 unss = 0; 2299 } 2300 oss.ss_sp = td->td_sigstk.ss_sp; 2301 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2302 if (unss) { 2303 td->td_sigstk.ss_sp = nss.ss_sp; 2304 td->td_sigstk.ss_size = 0; 2305 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2306 td->td_pflags |= TDP_ALTSTACK; 2307 } 2308 if (uap->oss != NULL) { 2309 s32.ss_sp = PTROUT(oss.ss_sp); 2310 CP(oss, s32, ss_onstack); 2311 error = copyout(&s32, uap->oss, sizeof(s32)); 2312 } 2313 return (error); 2314 } 2315 #endif 2316 2317 int 2318 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2319 { 2320 2321 return (freebsd32_user_clock_nanosleep(td, CLOCK_REALTIME, 2322 TIMER_RELTIME, uap->rqtp, uap->rmtp)); 2323 } 2324 2325 int 2326 freebsd32_clock_nanosleep(struct thread *td, 2327 struct freebsd32_clock_nanosleep_args *uap) 2328 { 2329 int error; 2330 2331 error = freebsd32_user_clock_nanosleep(td, uap->clock_id, uap->flags, 2332 uap->rqtp, uap->rmtp); 2333 return (kern_posix_error(td, error)); 2334 } 2335 2336 static int 2337 freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id, 2338 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp) 2339 { 2340 struct timespec32 rmt32, rqt32; 2341 struct timespec rmt, rqt; 2342 int error, error2; 2343 2344 error = copyin(ua_rqtp, &rqt32, sizeof(rqt32)); 2345 if (error) 2346 return (error); 2347 2348 CP(rqt32, rqt, tv_sec); 2349 CP(rqt32, rqt, tv_nsec); 2350 2351 error = kern_clock_nanosleep(td, clock_id, flags, &rqt, &rmt); 2352 if (error == EINTR && ua_rmtp != NULL && (flags & TIMER_ABSTIME) == 0) { 2353 CP(rmt, rmt32, tv_sec); 2354 CP(rmt, rmt32, tv_nsec); 2355 2356 error2 = copyout(&rmt32, ua_rmtp, sizeof(rmt32)); 2357 if (error2 != 0) 2358 error = error2; 2359 } 2360 return (error); 2361 } 2362 2363 int 2364 freebsd32_clock_gettime(struct thread *td, 2365 struct freebsd32_clock_gettime_args *uap) 2366 { 2367 struct timespec ats; 2368 struct timespec32 ats32; 2369 int error; 2370 2371 error = kern_clock_gettime(td, uap->clock_id, &ats); 2372 if (error == 0) { 2373 CP(ats, ats32, tv_sec); 2374 CP(ats, ats32, tv_nsec); 2375 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2376 } 2377 return (error); 2378 } 2379 2380 int 2381 freebsd32_clock_settime(struct thread *td, 2382 struct freebsd32_clock_settime_args *uap) 2383 { 2384 struct timespec ats; 2385 struct timespec32 ats32; 2386 int error; 2387 2388 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2389 if (error) 2390 return (error); 2391 CP(ats32, ats, tv_sec); 2392 CP(ats32, ats, tv_nsec); 2393 2394 return (kern_clock_settime(td, uap->clock_id, &ats)); 2395 } 2396 2397 int 2398 freebsd32_clock_getres(struct thread *td, 2399 struct freebsd32_clock_getres_args *uap) 2400 { 2401 struct timespec ts; 2402 struct timespec32 ts32; 2403 int error; 2404 2405 if (uap->tp == NULL) 2406 return (0); 2407 error = kern_clock_getres(td, uap->clock_id, &ts); 2408 if (error == 0) { 2409 CP(ts, ts32, tv_sec); 2410 CP(ts, ts32, tv_nsec); 2411 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2412 } 2413 return (error); 2414 } 2415 2416 int freebsd32_ktimer_create(struct thread *td, 2417 struct freebsd32_ktimer_create_args *uap) 2418 { 2419 struct sigevent32 ev32; 2420 struct sigevent ev, *evp; 2421 int error, id; 2422 2423 if (uap->evp == NULL) { 2424 evp = NULL; 2425 } else { 2426 evp = &ev; 2427 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2428 if (error != 0) 2429 return (error); 2430 error = convert_sigevent32(&ev32, &ev); 2431 if (error != 0) 2432 return (error); 2433 } 2434 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2435 if (error == 0) { 2436 error = copyout(&id, uap->timerid, sizeof(int)); 2437 if (error != 0) 2438 kern_ktimer_delete(td, id); 2439 } 2440 return (error); 2441 } 2442 2443 int 2444 freebsd32_ktimer_settime(struct thread *td, 2445 struct freebsd32_ktimer_settime_args *uap) 2446 { 2447 struct itimerspec32 val32, oval32; 2448 struct itimerspec val, oval, *ovalp; 2449 int error; 2450 2451 error = copyin(uap->value, &val32, sizeof(val32)); 2452 if (error != 0) 2453 return (error); 2454 ITS_CP(val32, val); 2455 ovalp = uap->ovalue != NULL ? &oval : NULL; 2456 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2457 if (error == 0 && uap->ovalue != NULL) { 2458 ITS_CP(oval, oval32); 2459 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2460 } 2461 return (error); 2462 } 2463 2464 int 2465 freebsd32_ktimer_gettime(struct thread *td, 2466 struct freebsd32_ktimer_gettime_args *uap) 2467 { 2468 struct itimerspec32 val32; 2469 struct itimerspec val; 2470 int error; 2471 2472 error = kern_ktimer_gettime(td, uap->timerid, &val); 2473 if (error == 0) { 2474 ITS_CP(val, val32); 2475 error = copyout(&val32, uap->value, sizeof(val32)); 2476 } 2477 return (error); 2478 } 2479 2480 int 2481 freebsd32_clock_getcpuclockid2(struct thread *td, 2482 struct freebsd32_clock_getcpuclockid2_args *uap) 2483 { 2484 clockid_t clk_id; 2485 int error; 2486 2487 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2488 uap->which, &clk_id); 2489 if (error == 0) 2490 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2491 return (error); 2492 } 2493 2494 int 2495 freebsd32_thr_new(struct thread *td, 2496 struct freebsd32_thr_new_args *uap) 2497 { 2498 struct thr_param32 param32; 2499 struct thr_param param; 2500 int error; 2501 2502 if (uap->param_size < 0 || 2503 uap->param_size > sizeof(struct thr_param32)) 2504 return (EINVAL); 2505 bzero(¶m, sizeof(struct thr_param)); 2506 bzero(¶m32, sizeof(struct thr_param32)); 2507 error = copyin(uap->param, ¶m32, uap->param_size); 2508 if (error != 0) 2509 return (error); 2510 param.start_func = PTRIN(param32.start_func); 2511 param.arg = PTRIN(param32.arg); 2512 param.stack_base = PTRIN(param32.stack_base); 2513 param.stack_size = param32.stack_size; 2514 param.tls_base = PTRIN(param32.tls_base); 2515 param.tls_size = param32.tls_size; 2516 param.child_tid = PTRIN(param32.child_tid); 2517 param.parent_tid = PTRIN(param32.parent_tid); 2518 param.flags = param32.flags; 2519 param.rtp = PTRIN(param32.rtp); 2520 param.spare[0] = PTRIN(param32.spare[0]); 2521 param.spare[1] = PTRIN(param32.spare[1]); 2522 param.spare[2] = PTRIN(param32.spare[2]); 2523 2524 return (kern_thr_new(td, ¶m)); 2525 } 2526 2527 int 2528 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2529 { 2530 struct timespec32 ts32; 2531 struct timespec ts, *tsp; 2532 int error; 2533 2534 error = 0; 2535 tsp = NULL; 2536 if (uap->timeout != NULL) { 2537 error = copyin((const void *)uap->timeout, (void *)&ts32, 2538 sizeof(struct timespec32)); 2539 if (error != 0) 2540 return (error); 2541 ts.tv_sec = ts32.tv_sec; 2542 ts.tv_nsec = ts32.tv_nsec; 2543 tsp = &ts; 2544 } 2545 return (kern_thr_suspend(td, tsp)); 2546 } 2547 2548 void 2549 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2550 { 2551 bzero(dst, sizeof(*dst)); 2552 dst->si_signo = src->si_signo; 2553 dst->si_errno = src->si_errno; 2554 dst->si_code = src->si_code; 2555 dst->si_pid = src->si_pid; 2556 dst->si_uid = src->si_uid; 2557 dst->si_status = src->si_status; 2558 dst->si_addr = (uintptr_t)src->si_addr; 2559 dst->si_value.sival_int = src->si_value.sival_int; 2560 dst->si_timerid = src->si_timerid; 2561 dst->si_overrun = src->si_overrun; 2562 } 2563 2564 #ifndef _FREEBSD32_SYSPROTO_H_ 2565 struct freebsd32_sigqueue_args { 2566 pid_t pid; 2567 int signum; 2568 /* union sigval32 */ int value; 2569 }; 2570 #endif 2571 int 2572 freebsd32_sigqueue(struct thread *td, struct freebsd32_sigqueue_args *uap) 2573 { 2574 union sigval sv; 2575 2576 /* 2577 * On 32-bit ABIs, sival_int and sival_ptr are the same. 2578 * On 64-bit little-endian ABIs, the low bits are the same. 2579 * In 64-bit big-endian ABIs, sival_int overlaps with 2580 * sival_ptr's HIGH bits. We choose to support sival_int 2581 * rather than sival_ptr in this case as it seems to be 2582 * more common. 2583 */ 2584 bzero(&sv, sizeof(sv)); 2585 sv.sival_int = uap->value; 2586 2587 return (kern_sigqueue(td, uap->pid, uap->signum, &sv)); 2588 } 2589 2590 int 2591 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2592 { 2593 struct timespec32 ts32; 2594 struct timespec ts; 2595 struct timespec *timeout; 2596 sigset_t set; 2597 ksiginfo_t ksi; 2598 struct siginfo32 si32; 2599 int error; 2600 2601 if (uap->timeout) { 2602 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2603 if (error) 2604 return (error); 2605 ts.tv_sec = ts32.tv_sec; 2606 ts.tv_nsec = ts32.tv_nsec; 2607 timeout = &ts; 2608 } else 2609 timeout = NULL; 2610 2611 error = copyin(uap->set, &set, sizeof(set)); 2612 if (error) 2613 return (error); 2614 2615 error = kern_sigtimedwait(td, set, &ksi, timeout); 2616 if (error) 2617 return (error); 2618 2619 if (uap->info) { 2620 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2621 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2622 } 2623 2624 if (error == 0) 2625 td->td_retval[0] = ksi.ksi_signo; 2626 return (error); 2627 } 2628 2629 /* 2630 * MPSAFE 2631 */ 2632 int 2633 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2634 { 2635 ksiginfo_t ksi; 2636 struct siginfo32 si32; 2637 sigset_t set; 2638 int error; 2639 2640 error = copyin(uap->set, &set, sizeof(set)); 2641 if (error) 2642 return (error); 2643 2644 error = kern_sigtimedwait(td, set, &ksi, NULL); 2645 if (error) 2646 return (error); 2647 2648 if (uap->info) { 2649 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2650 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2651 } 2652 if (error == 0) 2653 td->td_retval[0] = ksi.ksi_signo; 2654 return (error); 2655 } 2656 2657 int 2658 freebsd32_cpuset_setid(struct thread *td, 2659 struct freebsd32_cpuset_setid_args *uap) 2660 { 2661 2662 return (kern_cpuset_setid(td, uap->which, 2663 PAIR32TO64(id_t, uap->id), uap->setid)); 2664 } 2665 2666 int 2667 freebsd32_cpuset_getid(struct thread *td, 2668 struct freebsd32_cpuset_getid_args *uap) 2669 { 2670 2671 return (kern_cpuset_getid(td, uap->level, uap->which, 2672 PAIR32TO64(id_t, uap->id), uap->setid)); 2673 } 2674 2675 int 2676 freebsd32_cpuset_getaffinity(struct thread *td, 2677 struct freebsd32_cpuset_getaffinity_args *uap) 2678 { 2679 2680 return (kern_cpuset_getaffinity(td, uap->level, uap->which, 2681 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask)); 2682 } 2683 2684 int 2685 freebsd32_cpuset_setaffinity(struct thread *td, 2686 struct freebsd32_cpuset_setaffinity_args *uap) 2687 { 2688 2689 return (kern_cpuset_setaffinity(td, uap->level, uap->which, 2690 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask)); 2691 } 2692 2693 int 2694 freebsd32_nmount(struct thread *td, 2695 struct freebsd32_nmount_args /* { 2696 struct iovec *iovp; 2697 unsigned int iovcnt; 2698 int flags; 2699 } */ *uap) 2700 { 2701 struct uio *auio; 2702 uint64_t flags; 2703 int error; 2704 2705 /* 2706 * Mount flags are now 64-bits. On 32-bit archtectures only 2707 * 32-bits are passed in, but from here on everything handles 2708 * 64-bit flags correctly. 2709 */ 2710 flags = uap->flags; 2711 2712 AUDIT_ARG_FFLAGS(flags); 2713 2714 /* 2715 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2716 * userspace to set this flag, but we must filter it out if we want 2717 * MNT_UPDATE on the root file system to work. 2718 * MNT_ROOTFS should only be set by the kernel when mounting its 2719 * root file system. 2720 */ 2721 flags &= ~MNT_ROOTFS; 2722 2723 /* 2724 * check that we have an even number of iovec's 2725 * and that we have at least two options. 2726 */ 2727 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2728 return (EINVAL); 2729 2730 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2731 if (error) 2732 return (error); 2733 error = vfs_donmount(td, flags, auio); 2734 2735 free(auio, M_IOV); 2736 return error; 2737 } 2738 2739 #if 0 2740 int 2741 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2742 { 2743 struct yyy32 *p32, s32; 2744 struct yyy *p = NULL, s; 2745 struct xxx_arg ap; 2746 int error; 2747 2748 if (uap->zzz) { 2749 error = copyin(uap->zzz, &s32, sizeof(s32)); 2750 if (error) 2751 return (error); 2752 /* translate in */ 2753 p = &s; 2754 } 2755 error = kern_xxx(td, p); 2756 if (error) 2757 return (error); 2758 if (uap->zzz) { 2759 /* translate out */ 2760 error = copyout(&s32, p32, sizeof(s32)); 2761 } 2762 return (error); 2763 } 2764 #endif 2765 2766 int 2767 syscall32_register(int *offset, struct sysent *new_sysent, 2768 struct sysent *old_sysent, int flags) 2769 { 2770 2771 if ((flags & ~SY_THR_STATIC) != 0) 2772 return (EINVAL); 2773 2774 if (*offset == NO_SYSCALL) { 2775 int i; 2776 2777 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2778 if (freebsd32_sysent[i].sy_call == 2779 (sy_call_t *)lkmnosys) 2780 break; 2781 if (i == SYS_MAXSYSCALL) 2782 return (ENFILE); 2783 *offset = i; 2784 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2785 return (EINVAL); 2786 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2787 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2788 return (EEXIST); 2789 2790 *old_sysent = freebsd32_sysent[*offset]; 2791 freebsd32_sysent[*offset] = *new_sysent; 2792 atomic_store_rel_32(&freebsd32_sysent[*offset].sy_thrcnt, flags); 2793 return (0); 2794 } 2795 2796 int 2797 syscall32_deregister(int *offset, struct sysent *old_sysent) 2798 { 2799 2800 if (*offset == 0) 2801 return (0); 2802 2803 freebsd32_sysent[*offset] = *old_sysent; 2804 return (0); 2805 } 2806 2807 int 2808 syscall32_module_handler(struct module *mod, int what, void *arg) 2809 { 2810 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2811 modspecific_t ms; 2812 int error; 2813 2814 switch (what) { 2815 case MOD_LOAD: 2816 error = syscall32_register(data->offset, data->new_sysent, 2817 &data->old_sysent, SY_THR_STATIC_KLD); 2818 if (error) { 2819 /* Leave a mark so we know to safely unload below. */ 2820 data->offset = NULL; 2821 return error; 2822 } 2823 ms.intval = *data->offset; 2824 MOD_XLOCK; 2825 module_setspecific(mod, &ms); 2826 MOD_XUNLOCK; 2827 if (data->chainevh) 2828 error = data->chainevh(mod, what, data->chainarg); 2829 return (error); 2830 case MOD_UNLOAD: 2831 /* 2832 * MOD_LOAD failed, so just return without calling the 2833 * chained handler since we didn't pass along the MOD_LOAD 2834 * event. 2835 */ 2836 if (data->offset == NULL) 2837 return (0); 2838 if (data->chainevh) { 2839 error = data->chainevh(mod, what, data->chainarg); 2840 if (error) 2841 return (error); 2842 } 2843 error = syscall32_deregister(data->offset, &data->old_sysent); 2844 return (error); 2845 default: 2846 error = EOPNOTSUPP; 2847 if (data->chainevh) 2848 error = data->chainevh(mod, what, data->chainarg); 2849 return (error); 2850 } 2851 } 2852 2853 int 2854 syscall32_helper_register(struct syscall_helper_data *sd, int flags) 2855 { 2856 struct syscall_helper_data *sd1; 2857 int error; 2858 2859 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2860 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2861 &sd1->old_sysent, flags); 2862 if (error != 0) { 2863 syscall32_helper_unregister(sd); 2864 return (error); 2865 } 2866 sd1->registered = 1; 2867 } 2868 return (0); 2869 } 2870 2871 int 2872 syscall32_helper_unregister(struct syscall_helper_data *sd) 2873 { 2874 struct syscall_helper_data *sd1; 2875 2876 for (sd1 = sd; sd1->registered != 0; sd1++) { 2877 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2878 sd1->registered = 0; 2879 } 2880 return (0); 2881 } 2882 2883 register_t * 2884 freebsd32_copyout_strings(struct image_params *imgp) 2885 { 2886 int argc, envc, i; 2887 u_int32_t *vectp; 2888 char *stringp; 2889 uintptr_t destp; 2890 u_int32_t *stack_base; 2891 struct freebsd32_ps_strings *arginfo; 2892 char canary[sizeof(long) * 8]; 2893 int32_t pagesizes32[MAXPAGESIZES]; 2894 size_t execpath_len; 2895 int szsigcode; 2896 2897 /* 2898 * Calculate string base and vector table pointers. 2899 * Also deal with signal trampoline code for this exec type. 2900 */ 2901 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2902 execpath_len = strlen(imgp->execpath) + 1; 2903 else 2904 execpath_len = 0; 2905 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2906 sv_psstrings; 2907 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2908 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2909 else 2910 szsigcode = 0; 2911 destp = (uintptr_t)arginfo; 2912 2913 /* 2914 * install sigcode 2915 */ 2916 if (szsigcode != 0) { 2917 destp -= szsigcode; 2918 destp = rounddown2(destp, sizeof(uint32_t)); 2919 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2920 szsigcode); 2921 } 2922 2923 /* 2924 * Copy the image path for the rtld. 2925 */ 2926 if (execpath_len != 0) { 2927 destp -= execpath_len; 2928 imgp->execpathp = destp; 2929 copyout(imgp->execpath, (void *)destp, execpath_len); 2930 } 2931 2932 /* 2933 * Prepare the canary for SSP. 2934 */ 2935 arc4rand(canary, sizeof(canary), 0); 2936 destp -= sizeof(canary); 2937 imgp->canary = destp; 2938 copyout(canary, (void *)destp, sizeof(canary)); 2939 imgp->canarylen = sizeof(canary); 2940 2941 /* 2942 * Prepare the pagesizes array. 2943 */ 2944 for (i = 0; i < MAXPAGESIZES; i++) 2945 pagesizes32[i] = (uint32_t)pagesizes[i]; 2946 destp -= sizeof(pagesizes32); 2947 destp = rounddown2(destp, sizeof(uint32_t)); 2948 imgp->pagesizes = destp; 2949 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2950 imgp->pagesizeslen = sizeof(pagesizes32); 2951 2952 destp -= ARG_MAX - imgp->args->stringspace; 2953 destp = rounddown2(destp, sizeof(uint32_t)); 2954 2955 vectp = (uint32_t *)destp; 2956 if (imgp->auxargs) { 2957 /* 2958 * Allocate room on the stack for the ELF auxargs 2959 * array. It has up to AT_COUNT entries. 2960 */ 2961 vectp -= howmany(AT_COUNT * sizeof(Elf32_Auxinfo), 2962 sizeof(*vectp)); 2963 } 2964 2965 /* 2966 * Allocate room for the argv[] and env vectors including the 2967 * terminating NULL pointers. 2968 */ 2969 vectp -= imgp->args->argc + 1 + imgp->args->envc + 1; 2970 2971 /* 2972 * vectp also becomes our initial stack base 2973 */ 2974 stack_base = vectp; 2975 2976 stringp = imgp->args->begin_argv; 2977 argc = imgp->args->argc; 2978 envc = imgp->args->envc; 2979 /* 2980 * Copy out strings - arguments and environment. 2981 */ 2982 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2983 2984 /* 2985 * Fill in "ps_strings" struct for ps, w, etc. 2986 */ 2987 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2988 suword32(&arginfo->ps_nargvstr, argc); 2989 2990 /* 2991 * Fill in argument portion of vector table. 2992 */ 2993 for (; argc > 0; --argc) { 2994 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2995 while (*stringp++ != 0) 2996 destp++; 2997 destp++; 2998 } 2999 3000 /* a null vector table pointer separates the argp's from the envp's */ 3001 suword32(vectp++, 0); 3002 3003 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 3004 suword32(&arginfo->ps_nenvstr, envc); 3005 3006 /* 3007 * Fill in environment portion of vector table. 3008 */ 3009 for (; envc > 0; --envc) { 3010 suword32(vectp++, (u_int32_t)(intptr_t)destp); 3011 while (*stringp++ != 0) 3012 destp++; 3013 destp++; 3014 } 3015 3016 /* end of vector table is a null pointer */ 3017 suword32(vectp, 0); 3018 3019 return ((register_t *)stack_base); 3020 } 3021 3022 int 3023 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 3024 { 3025 struct kld_file_stat *stat; 3026 struct kld32_file_stat *stat32; 3027 int error, version; 3028 3029 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 3030 != 0) 3031 return (error); 3032 if (version != sizeof(struct kld32_file_stat_1) && 3033 version != sizeof(struct kld32_file_stat)) 3034 return (EINVAL); 3035 3036 stat = malloc(sizeof(*stat), M_TEMP, M_WAITOK | M_ZERO); 3037 stat32 = malloc(sizeof(*stat32), M_TEMP, M_WAITOK | M_ZERO); 3038 error = kern_kldstat(td, uap->fileid, stat); 3039 if (error == 0) { 3040 bcopy(&stat->name[0], &stat32->name[0], sizeof(stat->name)); 3041 CP(*stat, *stat32, refs); 3042 CP(*stat, *stat32, id); 3043 PTROUT_CP(*stat, *stat32, address); 3044 CP(*stat, *stat32, size); 3045 bcopy(&stat->pathname[0], &stat32->pathname[0], 3046 sizeof(stat->pathname)); 3047 stat32->version = version; 3048 error = copyout(stat32, uap->stat, version); 3049 } 3050 free(stat, M_TEMP); 3051 free(stat32, M_TEMP); 3052 return (error); 3053 } 3054 3055 int 3056 freebsd32_posix_fallocate(struct thread *td, 3057 struct freebsd32_posix_fallocate_args *uap) 3058 { 3059 int error; 3060 3061 error = kern_posix_fallocate(td, uap->fd, 3062 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 3063 return (kern_posix_error(td, error)); 3064 } 3065 3066 int 3067 freebsd32_posix_fadvise(struct thread *td, 3068 struct freebsd32_posix_fadvise_args *uap) 3069 { 3070 int error; 3071 3072 error = kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset), 3073 PAIR32TO64(off_t, uap->len), uap->advice); 3074 return (kern_posix_error(td, error)); 3075 } 3076 3077 int 3078 convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 3079 { 3080 3081 CP(*sig32, *sig, sigev_notify); 3082 switch (sig->sigev_notify) { 3083 case SIGEV_NONE: 3084 break; 3085 case SIGEV_THREAD_ID: 3086 CP(*sig32, *sig, sigev_notify_thread_id); 3087 /* FALLTHROUGH */ 3088 case SIGEV_SIGNAL: 3089 CP(*sig32, *sig, sigev_signo); 3090 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3091 break; 3092 case SIGEV_KEVENT: 3093 CP(*sig32, *sig, sigev_notify_kqueue); 3094 CP(*sig32, *sig, sigev_notify_kevent_flags); 3095 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3096 break; 3097 default: 3098 return (EINVAL); 3099 } 3100 return (0); 3101 } 3102 3103 int 3104 freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3105 { 3106 void *data; 3107 union { 3108 struct procctl_reaper_status rs; 3109 struct procctl_reaper_pids rp; 3110 struct procctl_reaper_kill rk; 3111 } x; 3112 union { 3113 struct procctl_reaper_pids32 rp; 3114 } x32; 3115 int error, error1, flags, signum; 3116 3117 switch (uap->com) { 3118 case PROC_SPROTECT: 3119 case PROC_STACKGAP_CTL: 3120 case PROC_TRACE_CTL: 3121 case PROC_TRAPCAP_CTL: 3122 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3123 if (error != 0) 3124 return (error); 3125 data = &flags; 3126 break; 3127 case PROC_REAP_ACQUIRE: 3128 case PROC_REAP_RELEASE: 3129 if (uap->data != NULL) 3130 return (EINVAL); 3131 data = NULL; 3132 break; 3133 case PROC_REAP_STATUS: 3134 data = &x.rs; 3135 break; 3136 case PROC_REAP_GETPIDS: 3137 error = copyin(uap->data, &x32.rp, sizeof(x32.rp)); 3138 if (error != 0) 3139 return (error); 3140 CP(x32.rp, x.rp, rp_count); 3141 PTRIN_CP(x32.rp, x.rp, rp_pids); 3142 data = &x.rp; 3143 break; 3144 case PROC_REAP_KILL: 3145 error = copyin(uap->data, &x.rk, sizeof(x.rk)); 3146 if (error != 0) 3147 return (error); 3148 data = &x.rk; 3149 break; 3150 case PROC_STACKGAP_STATUS: 3151 case PROC_TRACE_STATUS: 3152 case PROC_TRAPCAP_STATUS: 3153 data = &flags; 3154 break; 3155 case PROC_PDEATHSIG_CTL: 3156 error = copyin(uap->data, &signum, sizeof(signum)); 3157 if (error != 0) 3158 return (error); 3159 data = &signum; 3160 break; 3161 case PROC_PDEATHSIG_STATUS: 3162 data = &signum; 3163 break; 3164 default: 3165 return (EINVAL); 3166 } 3167 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3168 uap->com, data); 3169 switch (uap->com) { 3170 case PROC_REAP_STATUS: 3171 if (error == 0) 3172 error = copyout(&x.rs, uap->data, sizeof(x.rs)); 3173 break; 3174 case PROC_REAP_KILL: 3175 error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); 3176 if (error == 0) 3177 error = error1; 3178 break; 3179 case PROC_STACKGAP_STATUS: 3180 case PROC_TRACE_STATUS: 3181 case PROC_TRAPCAP_STATUS: 3182 if (error == 0) 3183 error = copyout(&flags, uap->data, sizeof(flags)); 3184 break; 3185 case PROC_PDEATHSIG_STATUS: 3186 if (error == 0) 3187 error = copyout(&signum, uap->data, sizeof(signum)); 3188 break; 3189 } 3190 return (error); 3191 } 3192 3193 int 3194 freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 3195 { 3196 long tmp; 3197 3198 switch (uap->cmd) { 3199 /* 3200 * Do unsigned conversion for arg when operation 3201 * interprets it as flags or pointer. 3202 */ 3203 case F_SETLK_REMOTE: 3204 case F_SETLKW: 3205 case F_SETLK: 3206 case F_GETLK: 3207 case F_SETFD: 3208 case F_SETFL: 3209 case F_OGETLK: 3210 case F_OSETLK: 3211 case F_OSETLKW: 3212 tmp = (unsigned int)(uap->arg); 3213 break; 3214 default: 3215 tmp = uap->arg; 3216 break; 3217 } 3218 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 3219 } 3220 3221 int 3222 freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap) 3223 { 3224 struct timespec32 ts32; 3225 struct timespec ts, *tsp; 3226 sigset_t set, *ssp; 3227 int error; 3228 3229 if (uap->ts != NULL) { 3230 error = copyin(uap->ts, &ts32, sizeof(ts32)); 3231 if (error != 0) 3232 return (error); 3233 CP(ts32, ts, tv_sec); 3234 CP(ts32, ts, tv_nsec); 3235 tsp = &ts; 3236 } else 3237 tsp = NULL; 3238 if (uap->set != NULL) { 3239 error = copyin(uap->set, &set, sizeof(set)); 3240 if (error != 0) 3241 return (error); 3242 ssp = &set; 3243 } else 3244 ssp = NULL; 3245 3246 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp)); 3247 } 3248 3249 int 3250 freebsd32_sched_rr_get_interval(struct thread *td, 3251 struct freebsd32_sched_rr_get_interval_args *uap) 3252 { 3253 struct timespec ts; 3254 struct timespec32 ts32; 3255 int error; 3256 3257 error = kern_sched_rr_get_interval(td, uap->pid, &ts); 3258 if (error == 0) { 3259 CP(ts, ts32, tv_sec); 3260 CP(ts, ts32, tv_nsec); 3261 error = copyout(&ts32, uap->interval, sizeof(ts32)); 3262 } 3263 return (error); 3264 }
Cache object: f479973050e064c2632cecdb32f96e98
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