Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/compat/freebsd32/freebsd32_misc.c
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1 /*- 2 * Copyright (c) 2002 Doug Rabson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD: releng/11.2/sys/compat/freebsd32/freebsd32_misc.c 333162 2018-05-02 07:57:36Z kib $"); 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 #endif 121 CTASSERT(sizeof(struct statfs32) == 256); 122 #ifndef __mips__ 123 CTASSERT(sizeof(struct rusage32) == 72); 124 #endif 125 CTASSERT(sizeof(struct sigaltstack32) == 12); 126 CTASSERT(sizeof(struct kevent32) == 20); 127 CTASSERT(sizeof(struct iovec32) == 8); 128 CTASSERT(sizeof(struct msghdr32) == 28); 129 #ifndef __mips__ 130 CTASSERT(sizeof(struct stat32) == 96); 131 #endif 132 CTASSERT(sizeof(struct sigaction32) == 24); 133 134 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 135 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 136 static int freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id, 137 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp); 138 139 void 140 freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 141 { 142 143 TV_CP(*s, *s32, ru_utime); 144 TV_CP(*s, *s32, ru_stime); 145 CP(*s, *s32, ru_maxrss); 146 CP(*s, *s32, ru_ixrss); 147 CP(*s, *s32, ru_idrss); 148 CP(*s, *s32, ru_isrss); 149 CP(*s, *s32, ru_minflt); 150 CP(*s, *s32, ru_majflt); 151 CP(*s, *s32, ru_nswap); 152 CP(*s, *s32, ru_inblock); 153 CP(*s, *s32, ru_oublock); 154 CP(*s, *s32, ru_msgsnd); 155 CP(*s, *s32, ru_msgrcv); 156 CP(*s, *s32, ru_nsignals); 157 CP(*s, *s32, ru_nvcsw); 158 CP(*s, *s32, ru_nivcsw); 159 } 160 161 int 162 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 163 { 164 int error, status; 165 struct rusage32 ru32; 166 struct rusage ru, *rup; 167 168 if (uap->rusage != NULL) 169 rup = &ru; 170 else 171 rup = NULL; 172 error = kern_wait(td, uap->pid, &status, uap->options, rup); 173 if (error) 174 return (error); 175 if (uap->status != NULL) 176 error = copyout(&status, uap->status, sizeof(status)); 177 if (uap->rusage != NULL && error == 0) { 178 freebsd32_rusage_out(&ru, &ru32); 179 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 180 } 181 return (error); 182 } 183 184 int 185 freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap) 186 { 187 struct wrusage32 wru32; 188 struct __wrusage wru, *wrup; 189 struct siginfo32 si32; 190 struct __siginfo si, *sip; 191 int error, status; 192 193 if (uap->wrusage != NULL) 194 wrup = &wru; 195 else 196 wrup = NULL; 197 if (uap->info != NULL) { 198 sip = &si; 199 bzero(sip, sizeof(*sip)); 200 } else 201 sip = NULL; 202 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id), 203 &status, uap->options, wrup, sip); 204 if (error != 0) 205 return (error); 206 if (uap->status != NULL) 207 error = copyout(&status, uap->status, sizeof(status)); 208 if (uap->wrusage != NULL && error == 0) { 209 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self); 210 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children); 211 error = copyout(&wru32, uap->wrusage, sizeof(wru32)); 212 } 213 if (uap->info != NULL && error == 0) { 214 siginfo_to_siginfo32 (&si, &si32); 215 error = copyout(&si32, uap->info, sizeof(si32)); 216 } 217 return (error); 218 } 219 220 #ifdef COMPAT_FREEBSD4 221 static void 222 copy_statfs(struct statfs *in, struct statfs32 *out) 223 { 224 225 statfs_scale_blocks(in, INT32_MAX); 226 bzero(out, sizeof(*out)); 227 CP(*in, *out, f_bsize); 228 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 229 CP(*in, *out, f_blocks); 230 CP(*in, *out, f_bfree); 231 CP(*in, *out, f_bavail); 232 out->f_files = MIN(in->f_files, INT32_MAX); 233 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 234 CP(*in, *out, f_fsid); 235 CP(*in, *out, f_owner); 236 CP(*in, *out, f_type); 237 CP(*in, *out, f_flags); 238 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 239 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 240 strlcpy(out->f_fstypename, 241 in->f_fstypename, MFSNAMELEN); 242 strlcpy(out->f_mntonname, 243 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 244 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 245 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 246 strlcpy(out->f_mntfromname, 247 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 248 } 249 #endif 250 251 #ifdef COMPAT_FREEBSD4 252 int 253 freebsd4_freebsd32_getfsstat(struct thread *td, 254 struct freebsd4_freebsd32_getfsstat_args *uap) 255 { 256 struct statfs *buf, *sp; 257 struct statfs32 stat32; 258 size_t count, size, copycount; 259 int error; 260 261 count = uap->bufsize / sizeof(struct statfs32); 262 size = count * sizeof(struct statfs); 263 error = kern_getfsstat(td, &buf, size, &count, UIO_SYSSPACE, uap->mode); 264 if (size > 0) { 265 sp = buf; 266 copycount = count; 267 while (copycount > 0 && error == 0) { 268 copy_statfs(sp, &stat32); 269 error = copyout(&stat32, uap->buf, sizeof(stat32)); 270 sp++; 271 uap->buf++; 272 copycount--; 273 } 274 free(buf, M_STATFS); 275 } 276 if (error == 0) 277 td->td_retval[0] = count; 278 return (error); 279 } 280 #endif 281 282 #ifdef COMPAT_FREEBSD10 283 int 284 freebsd10_freebsd32_pipe(struct thread *td, 285 struct freebsd10_freebsd32_pipe_args *uap) { 286 287 return (freebsd10_pipe(td, (struct freebsd10_pipe_args*)uap)); 288 } 289 #endif 290 291 int 292 freebsd32_sigaltstack(struct thread *td, 293 struct freebsd32_sigaltstack_args *uap) 294 { 295 struct sigaltstack32 s32; 296 struct sigaltstack ss, oss, *ssp; 297 int error; 298 299 if (uap->ss != NULL) { 300 error = copyin(uap->ss, &s32, sizeof(s32)); 301 if (error) 302 return (error); 303 PTRIN_CP(s32, ss, ss_sp); 304 CP(s32, ss, ss_size); 305 CP(s32, ss, ss_flags); 306 ssp = &ss; 307 } else 308 ssp = NULL; 309 error = kern_sigaltstack(td, ssp, &oss); 310 if (error == 0 && uap->oss != NULL) { 311 PTROUT_CP(oss, s32, ss_sp); 312 CP(oss, s32, ss_size); 313 CP(oss, s32, ss_flags); 314 error = copyout(&s32, uap->oss, sizeof(s32)); 315 } 316 return (error); 317 } 318 319 /* 320 * Custom version of exec_copyin_args() so that we can translate 321 * the pointers. 322 */ 323 int 324 freebsd32_exec_copyin_args(struct image_args *args, char *fname, 325 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 326 { 327 char *argp, *envp; 328 u_int32_t *p32, arg; 329 size_t length; 330 int error; 331 332 bzero(args, sizeof(*args)); 333 if (argv == NULL) 334 return (EFAULT); 335 336 /* 337 * Allocate demand-paged memory for the file name, argument, and 338 * environment strings. 339 */ 340 error = exec_alloc_args(args); 341 if (error != 0) 342 return (error); 343 344 /* 345 * Copy the file name. 346 */ 347 if (fname != NULL) { 348 args->fname = args->buf; 349 error = (segflg == UIO_SYSSPACE) ? 350 copystr(fname, args->fname, PATH_MAX, &length) : 351 copyinstr(fname, args->fname, PATH_MAX, &length); 352 if (error != 0) 353 goto err_exit; 354 } else 355 length = 0; 356 357 args->begin_argv = args->buf + length; 358 args->endp = args->begin_argv; 359 args->stringspace = ARG_MAX; 360 361 /* 362 * extract arguments first 363 */ 364 p32 = argv; 365 for (;;) { 366 error = copyin(p32++, &arg, sizeof(arg)); 367 if (error) 368 goto err_exit; 369 if (arg == 0) 370 break; 371 argp = PTRIN(arg); 372 error = copyinstr(argp, args->endp, args->stringspace, &length); 373 if (error) { 374 if (error == ENAMETOOLONG) 375 error = E2BIG; 376 goto err_exit; 377 } 378 args->stringspace -= length; 379 args->endp += length; 380 args->argc++; 381 } 382 383 args->begin_envv = args->endp; 384 385 /* 386 * extract environment strings 387 */ 388 if (envv) { 389 p32 = envv; 390 for (;;) { 391 error = copyin(p32++, &arg, sizeof(arg)); 392 if (error) 393 goto err_exit; 394 if (arg == 0) 395 break; 396 envp = PTRIN(arg); 397 error = copyinstr(envp, args->endp, args->stringspace, 398 &length); 399 if (error) { 400 if (error == ENAMETOOLONG) 401 error = E2BIG; 402 goto err_exit; 403 } 404 args->stringspace -= length; 405 args->endp += length; 406 args->envc++; 407 } 408 } 409 410 return (0); 411 412 err_exit: 413 exec_free_args(args); 414 return (error); 415 } 416 417 int 418 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 419 { 420 struct image_args eargs; 421 struct vmspace *oldvmspace; 422 int error; 423 424 error = pre_execve(td, &oldvmspace); 425 if (error != 0) 426 return (error); 427 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 428 uap->argv, uap->envv); 429 if (error == 0) 430 error = kern_execve(td, &eargs, NULL); 431 post_execve(td, error, oldvmspace); 432 return (error); 433 } 434 435 int 436 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 437 { 438 struct image_args eargs; 439 struct vmspace *oldvmspace; 440 int error; 441 442 error = pre_execve(td, &oldvmspace); 443 if (error != 0) 444 return (error); 445 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 446 uap->argv, uap->envv); 447 if (error == 0) { 448 eargs.fd = uap->fd; 449 error = kern_execve(td, &eargs, NULL); 450 } 451 post_execve(td, error, oldvmspace); 452 return (error); 453 } 454 455 int 456 freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 457 { 458 int prot; 459 460 prot = uap->prot; 461 #if defined(__amd64__) 462 if (i386_read_exec && (prot & PROT_READ) != 0) 463 prot |= PROT_EXEC; 464 #endif 465 return (kern_mprotect(td, (uintptr_t)PTRIN(uap->addr), uap->len, 466 prot)); 467 } 468 469 int 470 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 471 { 472 int prot; 473 474 prot = uap->prot; 475 #if defined(__amd64__) 476 if (i386_read_exec && (prot & PROT_READ)) 477 prot |= PROT_EXEC; 478 #endif 479 480 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot, 481 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos))); 482 } 483 484 #ifdef COMPAT_FREEBSD6 485 int 486 freebsd6_freebsd32_mmap(struct thread *td, 487 struct freebsd6_freebsd32_mmap_args *uap) 488 { 489 int prot; 490 491 prot = uap->prot; 492 #if defined(__amd64__) 493 if (i386_read_exec && (prot & PROT_READ)) 494 prot |= PROT_EXEC; 495 #endif 496 497 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot, 498 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos))); 499 } 500 #endif 501 502 int 503 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 504 { 505 struct itimerval itv, oitv, *itvp; 506 struct itimerval32 i32; 507 int error; 508 509 if (uap->itv != NULL) { 510 error = copyin(uap->itv, &i32, sizeof(i32)); 511 if (error) 512 return (error); 513 TV_CP(i32, itv, it_interval); 514 TV_CP(i32, itv, it_value); 515 itvp = &itv; 516 } else 517 itvp = NULL; 518 error = kern_setitimer(td, uap->which, itvp, &oitv); 519 if (error || uap->oitv == NULL) 520 return (error); 521 TV_CP(oitv, i32, it_interval); 522 TV_CP(oitv, i32, it_value); 523 return (copyout(&i32, uap->oitv, sizeof(i32))); 524 } 525 526 int 527 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 528 { 529 struct itimerval itv; 530 struct itimerval32 i32; 531 int error; 532 533 error = kern_getitimer(td, uap->which, &itv); 534 if (error || uap->itv == NULL) 535 return (error); 536 TV_CP(itv, i32, it_interval); 537 TV_CP(itv, i32, it_value); 538 return (copyout(&i32, uap->itv, sizeof(i32))); 539 } 540 541 int 542 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 543 { 544 struct timeval32 tv32; 545 struct timeval tv, *tvp; 546 int error; 547 548 if (uap->tv != NULL) { 549 error = copyin(uap->tv, &tv32, sizeof(tv32)); 550 if (error) 551 return (error); 552 CP(tv32, tv, tv_sec); 553 CP(tv32, tv, tv_usec); 554 tvp = &tv; 555 } else 556 tvp = NULL; 557 /* 558 * XXX Do pointers need PTRIN()? 559 */ 560 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 561 sizeof(int32_t) * 8)); 562 } 563 564 int 565 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 566 { 567 struct timespec32 ts32; 568 struct timespec ts; 569 struct timeval tv, *tvp; 570 sigset_t set, *uset; 571 int error; 572 573 if (uap->ts != NULL) { 574 error = copyin(uap->ts, &ts32, sizeof(ts32)); 575 if (error != 0) 576 return (error); 577 CP(ts32, ts, tv_sec); 578 CP(ts32, ts, tv_nsec); 579 TIMESPEC_TO_TIMEVAL(&tv, &ts); 580 tvp = &tv; 581 } else 582 tvp = NULL; 583 if (uap->sm != NULL) { 584 error = copyin(uap->sm, &set, sizeof(set)); 585 if (error != 0) 586 return (error); 587 uset = &set; 588 } else 589 uset = NULL; 590 /* 591 * XXX Do pointers need PTRIN()? 592 */ 593 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 594 uset, sizeof(int32_t) * 8); 595 return (error); 596 } 597 598 /* 599 * Copy 'count' items into the destination list pointed to by uap->eventlist. 600 */ 601 static int 602 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 603 { 604 struct freebsd32_kevent_args *uap; 605 struct kevent32 ks32[KQ_NEVENTS]; 606 int i, error = 0; 607 608 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 609 uap = (struct freebsd32_kevent_args *)arg; 610 611 for (i = 0; i < count; i++) { 612 CP(kevp[i], ks32[i], ident); 613 CP(kevp[i], ks32[i], filter); 614 CP(kevp[i], ks32[i], flags); 615 CP(kevp[i], ks32[i], fflags); 616 CP(kevp[i], ks32[i], data); 617 PTROUT_CP(kevp[i], ks32[i], udata); 618 } 619 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 620 if (error == 0) 621 uap->eventlist += count; 622 return (error); 623 } 624 625 /* 626 * Copy 'count' items from the list pointed to by uap->changelist. 627 */ 628 static int 629 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 630 { 631 struct freebsd32_kevent_args *uap; 632 struct kevent32 ks32[KQ_NEVENTS]; 633 int i, error = 0; 634 635 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 636 uap = (struct freebsd32_kevent_args *)arg; 637 638 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 639 if (error) 640 goto done; 641 uap->changelist += count; 642 643 for (i = 0; i < count; i++) { 644 CP(ks32[i], kevp[i], ident); 645 CP(ks32[i], kevp[i], filter); 646 CP(ks32[i], kevp[i], flags); 647 CP(ks32[i], kevp[i], fflags); 648 CP(ks32[i], kevp[i], data); 649 PTRIN_CP(ks32[i], kevp[i], udata); 650 } 651 done: 652 return (error); 653 } 654 655 int 656 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 657 { 658 struct timespec32 ts32; 659 struct timespec ts, *tsp; 660 struct kevent_copyops k_ops = { 661 .arg = uap, 662 .k_copyout = freebsd32_kevent_copyout, 663 .k_copyin = freebsd32_kevent_copyin, 664 }; 665 #ifdef KTRACE 666 struct kevent32 *eventlist = uap->eventlist; 667 #endif 668 int error; 669 670 671 if (uap->timeout) { 672 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 673 if (error) 674 return (error); 675 CP(ts32, ts, tv_sec); 676 CP(ts32, ts, tv_nsec); 677 tsp = &ts; 678 } else 679 tsp = NULL; 680 #ifdef KTRACE 681 if (KTRPOINT(td, KTR_STRUCT_ARRAY)) 682 ktrstructarray("kevent32", UIO_USERSPACE, uap->changelist, 683 uap->nchanges, sizeof(struct kevent32)); 684 #endif 685 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 686 &k_ops, tsp); 687 #ifdef KTRACE 688 if (error == 0 && KTRPOINT(td, KTR_STRUCT_ARRAY)) 689 ktrstructarray("kevent32", UIO_USERSPACE, eventlist, 690 td->td_retval[0], sizeof(struct kevent32)); 691 #endif 692 return (error); 693 } 694 695 int 696 freebsd32_gettimeofday(struct thread *td, 697 struct freebsd32_gettimeofday_args *uap) 698 { 699 struct timeval atv; 700 struct timeval32 atv32; 701 struct timezone rtz; 702 int error = 0; 703 704 if (uap->tp) { 705 microtime(&atv); 706 CP(atv, atv32, tv_sec); 707 CP(atv, atv32, tv_usec); 708 error = copyout(&atv32, uap->tp, sizeof (atv32)); 709 } 710 if (error == 0 && uap->tzp != NULL) { 711 rtz.tz_minuteswest = tz_minuteswest; 712 rtz.tz_dsttime = tz_dsttime; 713 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 714 } 715 return (error); 716 } 717 718 int 719 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 720 { 721 struct rusage32 s32; 722 struct rusage s; 723 int error; 724 725 error = kern_getrusage(td, uap->who, &s); 726 if (error) 727 return (error); 728 if (uap->rusage != NULL) { 729 freebsd32_rusage_out(&s, &s32); 730 error = copyout(&s32, uap->rusage, sizeof(s32)); 731 } 732 return (error); 733 } 734 735 static int 736 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 737 { 738 struct iovec32 iov32; 739 struct iovec *iov; 740 struct uio *uio; 741 u_int iovlen; 742 int error, i; 743 744 *uiop = NULL; 745 if (iovcnt > UIO_MAXIOV) 746 return (EINVAL); 747 iovlen = iovcnt * sizeof(struct iovec); 748 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 749 iov = (struct iovec *)(uio + 1); 750 for (i = 0; i < iovcnt; i++) { 751 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 752 if (error) { 753 free(uio, M_IOV); 754 return (error); 755 } 756 iov[i].iov_base = PTRIN(iov32.iov_base); 757 iov[i].iov_len = iov32.iov_len; 758 } 759 uio->uio_iov = iov; 760 uio->uio_iovcnt = iovcnt; 761 uio->uio_segflg = UIO_USERSPACE; 762 uio->uio_offset = -1; 763 uio->uio_resid = 0; 764 for (i = 0; i < iovcnt; i++) { 765 if (iov->iov_len > INT_MAX - uio->uio_resid) { 766 free(uio, M_IOV); 767 return (EINVAL); 768 } 769 uio->uio_resid += iov->iov_len; 770 iov++; 771 } 772 *uiop = uio; 773 return (0); 774 } 775 776 int 777 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 778 { 779 struct uio *auio; 780 int error; 781 782 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 783 if (error) 784 return (error); 785 error = kern_readv(td, uap->fd, auio); 786 free(auio, M_IOV); 787 return (error); 788 } 789 790 int 791 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 792 { 793 struct uio *auio; 794 int error; 795 796 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 797 if (error) 798 return (error); 799 error = kern_writev(td, uap->fd, auio); 800 free(auio, M_IOV); 801 return (error); 802 } 803 804 int 805 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 806 { 807 struct uio *auio; 808 int error; 809 810 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 811 if (error) 812 return (error); 813 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 814 free(auio, M_IOV); 815 return (error); 816 } 817 818 int 819 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 820 { 821 struct uio *auio; 822 int error; 823 824 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 825 if (error) 826 return (error); 827 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 828 free(auio, M_IOV); 829 return (error); 830 } 831 832 int 833 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 834 int error) 835 { 836 struct iovec32 iov32; 837 struct iovec *iov; 838 u_int iovlen; 839 int i; 840 841 *iovp = NULL; 842 if (iovcnt > UIO_MAXIOV) 843 return (error); 844 iovlen = iovcnt * sizeof(struct iovec); 845 iov = malloc(iovlen, M_IOV, M_WAITOK); 846 for (i = 0; i < iovcnt; i++) { 847 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 848 if (error) { 849 free(iov, M_IOV); 850 return (error); 851 } 852 iov[i].iov_base = PTRIN(iov32.iov_base); 853 iov[i].iov_len = iov32.iov_len; 854 } 855 *iovp = iov; 856 return (0); 857 } 858 859 static int 860 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 861 { 862 struct msghdr32 m32; 863 int error; 864 865 error = copyin(msg32, &m32, sizeof(m32)); 866 if (error) 867 return (error); 868 msg->msg_name = PTRIN(m32.msg_name); 869 msg->msg_namelen = m32.msg_namelen; 870 msg->msg_iov = PTRIN(m32.msg_iov); 871 msg->msg_iovlen = m32.msg_iovlen; 872 msg->msg_control = PTRIN(m32.msg_control); 873 msg->msg_controllen = m32.msg_controllen; 874 msg->msg_flags = m32.msg_flags; 875 return (0); 876 } 877 878 static int 879 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 880 { 881 struct msghdr32 m32; 882 int error; 883 884 m32.msg_name = PTROUT(msg->msg_name); 885 m32.msg_namelen = msg->msg_namelen; 886 m32.msg_iov = PTROUT(msg->msg_iov); 887 m32.msg_iovlen = msg->msg_iovlen; 888 m32.msg_control = PTROUT(msg->msg_control); 889 m32.msg_controllen = msg->msg_controllen; 890 m32.msg_flags = msg->msg_flags; 891 error = copyout(&m32, msg32, sizeof(m32)); 892 return (error); 893 } 894 895 #ifndef __mips__ 896 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 897 #else 898 #define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 899 #endif 900 #define FREEBSD32_ALIGN(p) \ 901 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 902 #define FREEBSD32_CMSG_SPACE(l) \ 903 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 904 905 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 906 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 907 static int 908 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 909 { 910 struct cmsghdr *cm; 911 void *data; 912 socklen_t clen, datalen; 913 int error; 914 caddr_t ctlbuf; 915 int len, maxlen, copylen; 916 struct mbuf *m; 917 error = 0; 918 919 len = msg->msg_controllen; 920 maxlen = msg->msg_controllen; 921 msg->msg_controllen = 0; 922 923 m = control; 924 ctlbuf = msg->msg_control; 925 926 while (m && len > 0) { 927 cm = mtod(m, struct cmsghdr *); 928 clen = m->m_len; 929 930 while (cm != NULL) { 931 932 if (sizeof(struct cmsghdr) > clen || 933 cm->cmsg_len > clen) { 934 error = EINVAL; 935 break; 936 } 937 938 data = CMSG_DATA(cm); 939 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 940 941 /* Adjust message length */ 942 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 943 datalen; 944 945 946 /* Copy cmsghdr */ 947 copylen = sizeof(struct cmsghdr); 948 if (len < copylen) { 949 msg->msg_flags |= MSG_CTRUNC; 950 copylen = len; 951 } 952 953 error = copyout(cm,ctlbuf,copylen); 954 if (error) 955 goto exit; 956 957 ctlbuf += FREEBSD32_ALIGN(copylen); 958 len -= FREEBSD32_ALIGN(copylen); 959 960 if (len <= 0) 961 break; 962 963 /* Copy data */ 964 copylen = datalen; 965 if (len < copylen) { 966 msg->msg_flags |= MSG_CTRUNC; 967 copylen = len; 968 } 969 970 error = copyout(data,ctlbuf,copylen); 971 if (error) 972 goto exit; 973 974 ctlbuf += FREEBSD32_ALIGN(copylen); 975 len -= FREEBSD32_ALIGN(copylen); 976 977 if (CMSG_SPACE(datalen) < clen) { 978 clen -= CMSG_SPACE(datalen); 979 cm = (struct cmsghdr *) 980 ((caddr_t)cm + CMSG_SPACE(datalen)); 981 } else { 982 clen = 0; 983 cm = NULL; 984 } 985 } 986 m = m->m_next; 987 } 988 989 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 990 991 exit: 992 return (error); 993 994 } 995 996 int 997 freebsd32_recvmsg(td, uap) 998 struct thread *td; 999 struct freebsd32_recvmsg_args /* { 1000 int s; 1001 struct msghdr32 *msg; 1002 int flags; 1003 } */ *uap; 1004 { 1005 struct msghdr msg; 1006 struct msghdr32 m32; 1007 struct iovec *uiov, *iov; 1008 struct mbuf *control = NULL; 1009 struct mbuf **controlp; 1010 1011 int error; 1012 error = copyin(uap->msg, &m32, sizeof(m32)); 1013 if (error) 1014 return (error); 1015 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1016 if (error) 1017 return (error); 1018 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1019 EMSGSIZE); 1020 if (error) 1021 return (error); 1022 msg.msg_flags = uap->flags; 1023 uiov = msg.msg_iov; 1024 msg.msg_iov = iov; 1025 1026 controlp = (msg.msg_control != NULL) ? &control : NULL; 1027 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1028 if (error == 0) { 1029 msg.msg_iov = uiov; 1030 1031 if (control != NULL) 1032 error = freebsd32_copy_msg_out(&msg, control); 1033 else 1034 msg.msg_controllen = 0; 1035 1036 if (error == 0) 1037 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1038 } 1039 free(iov, M_IOV); 1040 1041 if (control != NULL) 1042 m_freem(control); 1043 1044 return (error); 1045 } 1046 1047 /* 1048 * Copy-in the array of control messages constructed using alignment 1049 * and padding suitable for a 32-bit environment and construct an 1050 * mbuf using alignment and padding suitable for a 64-bit kernel. 1051 * The alignment and padding are defined indirectly by CMSG_DATA(), 1052 * CMSG_SPACE() and CMSG_LEN(). 1053 */ 1054 static int 1055 freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1056 { 1057 struct mbuf *m; 1058 void *md; 1059 u_int idx, len, msglen; 1060 int error; 1061 1062 buflen = FREEBSD32_ALIGN(buflen); 1063 1064 if (buflen > MCLBYTES) 1065 return (EINVAL); 1066 1067 /* 1068 * Iterate over the buffer and get the length of each message 1069 * in there. This has 32-bit alignment and padding. Use it to 1070 * determine the length of these messages when using 64-bit 1071 * alignment and padding. 1072 */ 1073 idx = 0; 1074 len = 0; 1075 while (idx < buflen) { 1076 error = copyin(buf + idx, &msglen, sizeof(msglen)); 1077 if (error) 1078 return (error); 1079 if (msglen < sizeof(struct cmsghdr)) 1080 return (EINVAL); 1081 msglen = FREEBSD32_ALIGN(msglen); 1082 if (idx + msglen > buflen) 1083 return (EINVAL); 1084 idx += msglen; 1085 msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) - 1086 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1087 len += CMSG_ALIGN(msglen); 1088 } 1089 1090 if (len > MCLBYTES) 1091 return (EINVAL); 1092 1093 m = m_get(M_WAITOK, MT_CONTROL); 1094 if (len > MLEN) 1095 MCLGET(m, M_WAITOK); 1096 m->m_len = len; 1097 1098 md = mtod(m, void *); 1099 while (buflen > 0) { 1100 error = copyin(buf, md, sizeof(struct cmsghdr)); 1101 if (error) 1102 break; 1103 msglen = *(u_int *)md; 1104 msglen = FREEBSD32_ALIGN(msglen); 1105 1106 /* Modify the message length to account for alignment. */ 1107 *(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) - 1108 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1109 1110 md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr)); 1111 buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1112 buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1113 1114 msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1115 if (msglen > 0) { 1116 error = copyin(buf, md, msglen); 1117 if (error) 1118 break; 1119 md = (char *)md + CMSG_ALIGN(msglen); 1120 buf += msglen; 1121 buflen -= msglen; 1122 } 1123 } 1124 1125 if (error) 1126 m_free(m); 1127 else 1128 *mp = m; 1129 return (error); 1130 } 1131 1132 int 1133 freebsd32_sendmsg(struct thread *td, 1134 struct freebsd32_sendmsg_args *uap) 1135 { 1136 struct msghdr msg; 1137 struct msghdr32 m32; 1138 struct iovec *iov; 1139 struct mbuf *control = NULL; 1140 struct sockaddr *to = NULL; 1141 int error; 1142 1143 error = copyin(uap->msg, &m32, sizeof(m32)); 1144 if (error) 1145 return (error); 1146 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1147 if (error) 1148 return (error); 1149 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1150 EMSGSIZE); 1151 if (error) 1152 return (error); 1153 msg.msg_iov = iov; 1154 if (msg.msg_name != NULL) { 1155 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1156 if (error) { 1157 to = NULL; 1158 goto out; 1159 } 1160 msg.msg_name = to; 1161 } 1162 1163 if (msg.msg_control) { 1164 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1165 error = EINVAL; 1166 goto out; 1167 } 1168 1169 error = freebsd32_copyin_control(&control, msg.msg_control, 1170 msg.msg_controllen); 1171 if (error) 1172 goto out; 1173 1174 msg.msg_control = NULL; 1175 msg.msg_controllen = 0; 1176 } 1177 1178 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1179 UIO_USERSPACE); 1180 1181 out: 1182 free(iov, M_IOV); 1183 if (to) 1184 free(to, M_SONAME); 1185 return (error); 1186 } 1187 1188 int 1189 freebsd32_recvfrom(struct thread *td, 1190 struct freebsd32_recvfrom_args *uap) 1191 { 1192 struct msghdr msg; 1193 struct iovec aiov; 1194 int error; 1195 1196 if (uap->fromlenaddr) { 1197 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1198 sizeof(msg.msg_namelen)); 1199 if (error) 1200 return (error); 1201 } else { 1202 msg.msg_namelen = 0; 1203 } 1204 1205 msg.msg_name = PTRIN(uap->from); 1206 msg.msg_iov = &aiov; 1207 msg.msg_iovlen = 1; 1208 aiov.iov_base = PTRIN(uap->buf); 1209 aiov.iov_len = uap->len; 1210 msg.msg_control = NULL; 1211 msg.msg_flags = uap->flags; 1212 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1213 if (error == 0 && uap->fromlenaddr) 1214 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1215 sizeof (msg.msg_namelen)); 1216 return (error); 1217 } 1218 1219 int 1220 freebsd32_settimeofday(struct thread *td, 1221 struct freebsd32_settimeofday_args *uap) 1222 { 1223 struct timeval32 tv32; 1224 struct timeval tv, *tvp; 1225 struct timezone tz, *tzp; 1226 int error; 1227 1228 if (uap->tv) { 1229 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1230 if (error) 1231 return (error); 1232 CP(tv32, tv, tv_sec); 1233 CP(tv32, tv, tv_usec); 1234 tvp = &tv; 1235 } else 1236 tvp = NULL; 1237 if (uap->tzp) { 1238 error = copyin(uap->tzp, &tz, sizeof(tz)); 1239 if (error) 1240 return (error); 1241 tzp = &tz; 1242 } else 1243 tzp = NULL; 1244 return (kern_settimeofday(td, tvp, tzp)); 1245 } 1246 1247 int 1248 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1249 { 1250 struct timeval32 s32[2]; 1251 struct timeval s[2], *sp; 1252 int error; 1253 1254 if (uap->tptr != NULL) { 1255 error = copyin(uap->tptr, s32, sizeof(s32)); 1256 if (error) 1257 return (error); 1258 CP(s32[0], s[0], tv_sec); 1259 CP(s32[0], s[0], tv_usec); 1260 CP(s32[1], s[1], tv_sec); 1261 CP(s32[1], s[1], tv_usec); 1262 sp = s; 1263 } else 1264 sp = NULL; 1265 return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE, 1266 sp, UIO_SYSSPACE)); 1267 } 1268 1269 int 1270 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1271 { 1272 struct timeval32 s32[2]; 1273 struct timeval s[2], *sp; 1274 int error; 1275 1276 if (uap->tptr != NULL) { 1277 error = copyin(uap->tptr, s32, sizeof(s32)); 1278 if (error) 1279 return (error); 1280 CP(s32[0], s[0], tv_sec); 1281 CP(s32[0], s[0], tv_usec); 1282 CP(s32[1], s[1], tv_sec); 1283 CP(s32[1], s[1], tv_usec); 1284 sp = s; 1285 } else 1286 sp = NULL; 1287 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1288 } 1289 1290 int 1291 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1292 { 1293 struct timeval32 s32[2]; 1294 struct timeval s[2], *sp; 1295 int error; 1296 1297 if (uap->tptr != NULL) { 1298 error = copyin(uap->tptr, s32, sizeof(s32)); 1299 if (error) 1300 return (error); 1301 CP(s32[0], s[0], tv_sec); 1302 CP(s32[0], s[0], tv_usec); 1303 CP(s32[1], s[1], tv_sec); 1304 CP(s32[1], s[1], tv_usec); 1305 sp = s; 1306 } else 1307 sp = NULL; 1308 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1309 } 1310 1311 int 1312 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1313 { 1314 struct timeval32 s32[2]; 1315 struct timeval s[2], *sp; 1316 int error; 1317 1318 if (uap->times != NULL) { 1319 error = copyin(uap->times, s32, sizeof(s32)); 1320 if (error) 1321 return (error); 1322 CP(s32[0], s[0], tv_sec); 1323 CP(s32[0], s[0], tv_usec); 1324 CP(s32[1], s[1], tv_sec); 1325 CP(s32[1], s[1], tv_usec); 1326 sp = s; 1327 } else 1328 sp = NULL; 1329 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1330 sp, UIO_SYSSPACE)); 1331 } 1332 1333 int 1334 freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap) 1335 { 1336 struct timespec32 ts32[2]; 1337 struct timespec ts[2], *tsp; 1338 int error; 1339 1340 if (uap->times != NULL) { 1341 error = copyin(uap->times, ts32, sizeof(ts32)); 1342 if (error) 1343 return (error); 1344 CP(ts32[0], ts[0], tv_sec); 1345 CP(ts32[0], ts[0], tv_nsec); 1346 CP(ts32[1], ts[1], tv_sec); 1347 CP(ts32[1], ts[1], tv_nsec); 1348 tsp = ts; 1349 } else 1350 tsp = NULL; 1351 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE)); 1352 } 1353 1354 int 1355 freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap) 1356 { 1357 struct timespec32 ts32[2]; 1358 struct timespec ts[2], *tsp; 1359 int error; 1360 1361 if (uap->times != NULL) { 1362 error = copyin(uap->times, ts32, sizeof(ts32)); 1363 if (error) 1364 return (error); 1365 CP(ts32[0], ts[0], tv_sec); 1366 CP(ts32[0], ts[0], tv_nsec); 1367 CP(ts32[1], ts[1], tv_sec); 1368 CP(ts32[1], ts[1], tv_nsec); 1369 tsp = ts; 1370 } else 1371 tsp = NULL; 1372 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE, 1373 tsp, UIO_SYSSPACE, uap->flag)); 1374 } 1375 1376 int 1377 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1378 { 1379 struct timeval32 tv32; 1380 struct timeval delta, olddelta, *deltap; 1381 int error; 1382 1383 if (uap->delta) { 1384 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1385 if (error) 1386 return (error); 1387 CP(tv32, delta, tv_sec); 1388 CP(tv32, delta, tv_usec); 1389 deltap = δ 1390 } else 1391 deltap = NULL; 1392 error = kern_adjtime(td, deltap, &olddelta); 1393 if (uap->olddelta && error == 0) { 1394 CP(olddelta, tv32, tv_sec); 1395 CP(olddelta, tv32, tv_usec); 1396 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1397 } 1398 return (error); 1399 } 1400 1401 #ifdef COMPAT_FREEBSD4 1402 int 1403 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1404 { 1405 struct statfs32 s32; 1406 struct statfs *sp; 1407 int error; 1408 1409 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1410 error = kern_statfs(td, uap->path, UIO_USERSPACE, sp); 1411 if (error == 0) { 1412 copy_statfs(sp, &s32); 1413 error = copyout(&s32, uap->buf, sizeof(s32)); 1414 } 1415 free(sp, M_STATFS); 1416 return (error); 1417 } 1418 #endif 1419 1420 #ifdef COMPAT_FREEBSD4 1421 int 1422 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1423 { 1424 struct statfs32 s32; 1425 struct statfs *sp; 1426 int error; 1427 1428 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1429 error = kern_fstatfs(td, uap->fd, sp); 1430 if (error == 0) { 1431 copy_statfs(sp, &s32); 1432 error = copyout(&s32, uap->buf, sizeof(s32)); 1433 } 1434 free(sp, M_STATFS); 1435 return (error); 1436 } 1437 #endif 1438 1439 #ifdef COMPAT_FREEBSD4 1440 int 1441 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1442 { 1443 struct statfs32 s32; 1444 struct statfs *sp; 1445 fhandle_t fh; 1446 int error; 1447 1448 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1449 return (error); 1450 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1451 error = kern_fhstatfs(td, fh, sp); 1452 if (error == 0) { 1453 copy_statfs(sp, &s32); 1454 error = copyout(&s32, uap->buf, sizeof(s32)); 1455 } 1456 free(sp, M_STATFS); 1457 return (error); 1458 } 1459 #endif 1460 1461 int 1462 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1463 { 1464 1465 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte, 1466 PAIR32TO64(off_t, uap->offset))); 1467 } 1468 1469 int 1470 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1471 { 1472 1473 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte, 1474 PAIR32TO64(off_t, uap->offset))); 1475 } 1476 1477 #ifdef COMPAT_43 1478 int 1479 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1480 { 1481 1482 return (kern_lseek(td, uap->fd, uap->offset, uap->whence)); 1483 } 1484 #endif 1485 1486 int 1487 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1488 { 1489 int error; 1490 off_t pos; 1491 1492 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset), 1493 uap->whence); 1494 /* Expand the quad return into two parts for eax and edx */ 1495 pos = td->td_uretoff.tdu_off; 1496 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1497 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1498 return error; 1499 } 1500 1501 int 1502 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1503 { 1504 1505 return (kern_truncate(td, uap->path, UIO_USERSPACE, 1506 PAIR32TO64(off_t, uap->length))); 1507 } 1508 1509 int 1510 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1511 { 1512 1513 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length))); 1514 } 1515 1516 #ifdef COMPAT_43 1517 int 1518 ofreebsd32_getdirentries(struct thread *td, 1519 struct ofreebsd32_getdirentries_args *uap) 1520 { 1521 struct ogetdirentries_args ap; 1522 int error; 1523 long loff; 1524 int32_t loff_cut; 1525 1526 ap.fd = uap->fd; 1527 ap.buf = uap->buf; 1528 ap.count = uap->count; 1529 ap.basep = NULL; 1530 error = kern_ogetdirentries(td, &ap, &loff); 1531 if (error == 0) { 1532 loff_cut = loff; 1533 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1534 } 1535 return (error); 1536 } 1537 #endif 1538 1539 int 1540 freebsd32_getdirentries(struct thread *td, 1541 struct freebsd32_getdirentries_args *uap) 1542 { 1543 long base; 1544 int32_t base32; 1545 int error; 1546 1547 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1548 NULL, UIO_USERSPACE); 1549 if (error) 1550 return (error); 1551 if (uap->basep != NULL) { 1552 base32 = base; 1553 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1554 } 1555 return (error); 1556 } 1557 1558 #ifdef COMPAT_FREEBSD6 1559 /* versions with the 'int pad' argument */ 1560 int 1561 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1562 { 1563 1564 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte, 1565 PAIR32TO64(off_t, uap->offset))); 1566 } 1567 1568 int 1569 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1570 { 1571 1572 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte, 1573 PAIR32TO64(off_t, uap->offset))); 1574 } 1575 1576 int 1577 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1578 { 1579 int error; 1580 off_t pos; 1581 1582 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset), 1583 uap->whence); 1584 /* Expand the quad return into two parts for eax and edx */ 1585 pos = *(off_t *)(td->td_retval); 1586 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1587 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1588 return error; 1589 } 1590 1591 int 1592 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1593 { 1594 1595 return (kern_truncate(td, uap->path, UIO_USERSPACE, 1596 PAIR32TO64(off_t, uap->length))); 1597 } 1598 1599 int 1600 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1601 { 1602 1603 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length))); 1604 } 1605 #endif /* COMPAT_FREEBSD6 */ 1606 1607 struct sf_hdtr32 { 1608 uint32_t headers; 1609 int hdr_cnt; 1610 uint32_t trailers; 1611 int trl_cnt; 1612 }; 1613 1614 static int 1615 freebsd32_do_sendfile(struct thread *td, 1616 struct freebsd32_sendfile_args *uap, int compat) 1617 { 1618 struct sf_hdtr32 hdtr32; 1619 struct sf_hdtr hdtr; 1620 struct uio *hdr_uio, *trl_uio; 1621 struct file *fp; 1622 cap_rights_t rights; 1623 struct iovec32 *iov32; 1624 off_t offset, sbytes; 1625 int error; 1626 1627 offset = PAIR32TO64(off_t, uap->offset); 1628 if (offset < 0) 1629 return (EINVAL); 1630 1631 hdr_uio = trl_uio = NULL; 1632 1633 if (uap->hdtr != NULL) { 1634 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1635 if (error) 1636 goto out; 1637 PTRIN_CP(hdtr32, hdtr, headers); 1638 CP(hdtr32, hdtr, hdr_cnt); 1639 PTRIN_CP(hdtr32, hdtr, trailers); 1640 CP(hdtr32, hdtr, trl_cnt); 1641 1642 if (hdtr.headers != NULL) { 1643 iov32 = PTRIN(hdtr32.headers); 1644 error = freebsd32_copyinuio(iov32, 1645 hdtr32.hdr_cnt, &hdr_uio); 1646 if (error) 1647 goto out; 1648 #ifdef COMPAT_FREEBSD4 1649 /* 1650 * In FreeBSD < 5.0 the nbytes to send also included 1651 * the header. If compat is specified subtract the 1652 * header size from nbytes. 1653 */ 1654 if (compat) { 1655 if (uap->nbytes > hdr_uio->uio_resid) 1656 uap->nbytes -= hdr_uio->uio_resid; 1657 else 1658 uap->nbytes = 0; 1659 } 1660 #endif 1661 } 1662 if (hdtr.trailers != NULL) { 1663 iov32 = PTRIN(hdtr32.trailers); 1664 error = freebsd32_copyinuio(iov32, 1665 hdtr32.trl_cnt, &trl_uio); 1666 if (error) 1667 goto out; 1668 } 1669 } 1670 1671 AUDIT_ARG_FD(uap->fd); 1672 1673 if ((error = fget_read(td, uap->fd, 1674 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) 1675 goto out; 1676 1677 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1678 uap->nbytes, &sbytes, uap->flags, td); 1679 fdrop(fp, td); 1680 1681 if (uap->sbytes != NULL) 1682 copyout(&sbytes, uap->sbytes, sizeof(off_t)); 1683 1684 out: 1685 if (hdr_uio) 1686 free(hdr_uio, M_IOV); 1687 if (trl_uio) 1688 free(trl_uio, M_IOV); 1689 return (error); 1690 } 1691 1692 #ifdef COMPAT_FREEBSD4 1693 int 1694 freebsd4_freebsd32_sendfile(struct thread *td, 1695 struct freebsd4_freebsd32_sendfile_args *uap) 1696 { 1697 return (freebsd32_do_sendfile(td, 1698 (struct freebsd32_sendfile_args *)uap, 1)); 1699 } 1700 #endif 1701 1702 int 1703 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1704 { 1705 1706 return (freebsd32_do_sendfile(td, uap, 0)); 1707 } 1708 1709 static void 1710 copy_stat(struct stat *in, struct stat32 *out) 1711 { 1712 1713 CP(*in, *out, st_dev); 1714 CP(*in, *out, st_ino); 1715 CP(*in, *out, st_mode); 1716 CP(*in, *out, st_nlink); 1717 CP(*in, *out, st_uid); 1718 CP(*in, *out, st_gid); 1719 CP(*in, *out, st_rdev); 1720 TS_CP(*in, *out, st_atim); 1721 TS_CP(*in, *out, st_mtim); 1722 TS_CP(*in, *out, st_ctim); 1723 CP(*in, *out, st_size); 1724 CP(*in, *out, st_blocks); 1725 CP(*in, *out, st_blksize); 1726 CP(*in, *out, st_flags); 1727 CP(*in, *out, st_gen); 1728 TS_CP(*in, *out, st_birthtim); 1729 } 1730 1731 #ifdef COMPAT_43 1732 static void 1733 copy_ostat(struct stat *in, struct ostat32 *out) 1734 { 1735 1736 CP(*in, *out, st_dev); 1737 CP(*in, *out, st_ino); 1738 CP(*in, *out, st_mode); 1739 CP(*in, *out, st_nlink); 1740 CP(*in, *out, st_uid); 1741 CP(*in, *out, st_gid); 1742 CP(*in, *out, st_rdev); 1743 CP(*in, *out, st_size); 1744 TS_CP(*in, *out, st_atim); 1745 TS_CP(*in, *out, st_mtim); 1746 TS_CP(*in, *out, st_ctim); 1747 CP(*in, *out, st_blksize); 1748 CP(*in, *out, st_blocks); 1749 CP(*in, *out, st_flags); 1750 CP(*in, *out, st_gen); 1751 } 1752 #endif 1753 1754 int 1755 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1756 { 1757 struct stat sb; 1758 struct stat32 sb32; 1759 int error; 1760 1761 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1762 &sb, NULL); 1763 if (error) 1764 return (error); 1765 copy_stat(&sb, &sb32); 1766 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1767 return (error); 1768 } 1769 1770 #ifdef COMPAT_43 1771 int 1772 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1773 { 1774 struct stat sb; 1775 struct ostat32 sb32; 1776 int error; 1777 1778 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1779 &sb, NULL); 1780 if (error) 1781 return (error); 1782 copy_ostat(&sb, &sb32); 1783 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1784 return (error); 1785 } 1786 #endif 1787 1788 int 1789 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1790 { 1791 struct stat ub; 1792 struct stat32 ub32; 1793 int error; 1794 1795 error = kern_fstat(td, uap->fd, &ub); 1796 if (error) 1797 return (error); 1798 copy_stat(&ub, &ub32); 1799 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1800 return (error); 1801 } 1802 1803 #ifdef COMPAT_43 1804 int 1805 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1806 { 1807 struct stat ub; 1808 struct ostat32 ub32; 1809 int error; 1810 1811 error = kern_fstat(td, uap->fd, &ub); 1812 if (error) 1813 return (error); 1814 copy_ostat(&ub, &ub32); 1815 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1816 return (error); 1817 } 1818 #endif 1819 1820 int 1821 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1822 { 1823 struct stat ub; 1824 struct stat32 ub32; 1825 int error; 1826 1827 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, 1828 &ub, NULL); 1829 if (error) 1830 return (error); 1831 copy_stat(&ub, &ub32); 1832 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1833 return (error); 1834 } 1835 1836 int 1837 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1838 { 1839 struct stat sb; 1840 struct stat32 sb32; 1841 int error; 1842 1843 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1844 UIO_USERSPACE, &sb, NULL); 1845 if (error) 1846 return (error); 1847 copy_stat(&sb, &sb32); 1848 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1849 return (error); 1850 } 1851 1852 #ifdef COMPAT_43 1853 int 1854 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1855 { 1856 struct stat sb; 1857 struct ostat32 sb32; 1858 int error; 1859 1860 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1861 UIO_USERSPACE, &sb, NULL); 1862 if (error) 1863 return (error); 1864 copy_ostat(&sb, &sb32); 1865 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1866 return (error); 1867 } 1868 #endif 1869 1870 int 1871 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1872 { 1873 int error, name[CTL_MAXNAME]; 1874 size_t j, oldlen; 1875 uint32_t tmp; 1876 1877 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1878 return (EINVAL); 1879 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1880 if (error) 1881 return (error); 1882 if (uap->oldlenp) { 1883 error = fueword32(uap->oldlenp, &tmp); 1884 oldlen = tmp; 1885 } else { 1886 oldlen = 0; 1887 } 1888 if (error != 0) 1889 return (EFAULT); 1890 error = userland_sysctl(td, name, uap->namelen, 1891 uap->old, &oldlen, 1, 1892 uap->new, uap->newlen, &j, SCTL_MASK32); 1893 if (error && error != ENOMEM) 1894 return (error); 1895 if (uap->oldlenp) 1896 suword32(uap->oldlenp, j); 1897 return (0); 1898 } 1899 1900 int 1901 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1902 { 1903 uint32_t version; 1904 int error; 1905 struct jail j; 1906 1907 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1908 if (error) 1909 return (error); 1910 1911 switch (version) { 1912 case 0: 1913 { 1914 /* FreeBSD single IPv4 jails. */ 1915 struct jail32_v0 j32_v0; 1916 1917 bzero(&j, sizeof(struct jail)); 1918 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1919 if (error) 1920 return (error); 1921 CP(j32_v0, j, version); 1922 PTRIN_CP(j32_v0, j, path); 1923 PTRIN_CP(j32_v0, j, hostname); 1924 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1925 break; 1926 } 1927 1928 case 1: 1929 /* 1930 * Version 1 was used by multi-IPv4 jail implementations 1931 * that never made it into the official kernel. 1932 */ 1933 return (EINVAL); 1934 1935 case 2: /* JAIL_API_VERSION */ 1936 { 1937 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1938 struct jail32 j32; 1939 1940 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1941 if (error) 1942 return (error); 1943 CP(j32, j, version); 1944 PTRIN_CP(j32, j, path); 1945 PTRIN_CP(j32, j, hostname); 1946 PTRIN_CP(j32, j, jailname); 1947 CP(j32, j, ip4s); 1948 CP(j32, j, ip6s); 1949 PTRIN_CP(j32, j, ip4); 1950 PTRIN_CP(j32, j, ip6); 1951 break; 1952 } 1953 1954 default: 1955 /* Sci-Fi jails are not supported, sorry. */ 1956 return (EINVAL); 1957 } 1958 return (kern_jail(td, &j)); 1959 } 1960 1961 int 1962 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1963 { 1964 struct uio *auio; 1965 int error; 1966 1967 /* Check that we have an even number of iovecs. */ 1968 if (uap->iovcnt & 1) 1969 return (EINVAL); 1970 1971 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1972 if (error) 1973 return (error); 1974 error = kern_jail_set(td, auio, uap->flags); 1975 free(auio, M_IOV); 1976 return (error); 1977 } 1978 1979 int 1980 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1981 { 1982 struct iovec32 iov32; 1983 struct uio *auio; 1984 int error, i; 1985 1986 /* Check that we have an even number of iovecs. */ 1987 if (uap->iovcnt & 1) 1988 return (EINVAL); 1989 1990 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1991 if (error) 1992 return (error); 1993 error = kern_jail_get(td, auio, uap->flags); 1994 if (error == 0) 1995 for (i = 0; i < uap->iovcnt; i++) { 1996 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1997 CP(auio->uio_iov[i], iov32, iov_len); 1998 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1999 if (error != 0) 2000 break; 2001 } 2002 free(auio, M_IOV); 2003 return (error); 2004 } 2005 2006 int 2007 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2008 { 2009 struct sigaction32 s32; 2010 struct sigaction sa, osa, *sap; 2011 int error; 2012 2013 if (uap->act) { 2014 error = copyin(uap->act, &s32, sizeof(s32)); 2015 if (error) 2016 return (error); 2017 sa.sa_handler = PTRIN(s32.sa_u); 2018 CP(s32, sa, sa_flags); 2019 CP(s32, sa, sa_mask); 2020 sap = &sa; 2021 } else 2022 sap = NULL; 2023 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2024 if (error == 0 && uap->oact != NULL) { 2025 s32.sa_u = PTROUT(osa.sa_handler); 2026 CP(osa, s32, sa_flags); 2027 CP(osa, s32, sa_mask); 2028 error = copyout(&s32, uap->oact, sizeof(s32)); 2029 } 2030 return (error); 2031 } 2032 2033 #ifdef COMPAT_FREEBSD4 2034 int 2035 freebsd4_freebsd32_sigaction(struct thread *td, 2036 struct freebsd4_freebsd32_sigaction_args *uap) 2037 { 2038 struct sigaction32 s32; 2039 struct sigaction sa, osa, *sap; 2040 int error; 2041 2042 if (uap->act) { 2043 error = copyin(uap->act, &s32, sizeof(s32)); 2044 if (error) 2045 return (error); 2046 sa.sa_handler = PTRIN(s32.sa_u); 2047 CP(s32, sa, sa_flags); 2048 CP(s32, sa, sa_mask); 2049 sap = &sa; 2050 } else 2051 sap = NULL; 2052 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2053 if (error == 0 && uap->oact != NULL) { 2054 s32.sa_u = PTROUT(osa.sa_handler); 2055 CP(osa, s32, sa_flags); 2056 CP(osa, s32, sa_mask); 2057 error = copyout(&s32, uap->oact, sizeof(s32)); 2058 } 2059 return (error); 2060 } 2061 #endif 2062 2063 #ifdef COMPAT_43 2064 struct osigaction32 { 2065 u_int32_t sa_u; 2066 osigset_t sa_mask; 2067 int sa_flags; 2068 }; 2069 2070 #define ONSIG 32 2071 2072 int 2073 ofreebsd32_sigaction(struct thread *td, 2074 struct ofreebsd32_sigaction_args *uap) 2075 { 2076 struct osigaction32 s32; 2077 struct sigaction sa, osa, *sap; 2078 int error; 2079 2080 if (uap->signum <= 0 || uap->signum >= ONSIG) 2081 return (EINVAL); 2082 2083 if (uap->nsa) { 2084 error = copyin(uap->nsa, &s32, sizeof(s32)); 2085 if (error) 2086 return (error); 2087 sa.sa_handler = PTRIN(s32.sa_u); 2088 CP(s32, sa, sa_flags); 2089 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2090 sap = &sa; 2091 } else 2092 sap = NULL; 2093 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2094 if (error == 0 && uap->osa != NULL) { 2095 s32.sa_u = PTROUT(osa.sa_handler); 2096 CP(osa, s32, sa_flags); 2097 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2098 error = copyout(&s32, uap->osa, sizeof(s32)); 2099 } 2100 return (error); 2101 } 2102 2103 int 2104 ofreebsd32_sigprocmask(struct thread *td, 2105 struct ofreebsd32_sigprocmask_args *uap) 2106 { 2107 sigset_t set, oset; 2108 int error; 2109 2110 OSIG2SIG(uap->mask, set); 2111 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2112 SIG2OSIG(oset, td->td_retval[0]); 2113 return (error); 2114 } 2115 2116 int 2117 ofreebsd32_sigpending(struct thread *td, 2118 struct ofreebsd32_sigpending_args *uap) 2119 { 2120 struct proc *p = td->td_proc; 2121 sigset_t siglist; 2122 2123 PROC_LOCK(p); 2124 siglist = p->p_siglist; 2125 SIGSETOR(siglist, td->td_siglist); 2126 PROC_UNLOCK(p); 2127 SIG2OSIG(siglist, td->td_retval[0]); 2128 return (0); 2129 } 2130 2131 struct sigvec32 { 2132 u_int32_t sv_handler; 2133 int sv_mask; 2134 int sv_flags; 2135 }; 2136 2137 int 2138 ofreebsd32_sigvec(struct thread *td, 2139 struct ofreebsd32_sigvec_args *uap) 2140 { 2141 struct sigvec32 vec; 2142 struct sigaction sa, osa, *sap; 2143 int error; 2144 2145 if (uap->signum <= 0 || uap->signum >= ONSIG) 2146 return (EINVAL); 2147 2148 if (uap->nsv) { 2149 error = copyin(uap->nsv, &vec, sizeof(vec)); 2150 if (error) 2151 return (error); 2152 sa.sa_handler = PTRIN(vec.sv_handler); 2153 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2154 sa.sa_flags = vec.sv_flags; 2155 sa.sa_flags ^= SA_RESTART; 2156 sap = &sa; 2157 } else 2158 sap = NULL; 2159 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2160 if (error == 0 && uap->osv != NULL) { 2161 vec.sv_handler = PTROUT(osa.sa_handler); 2162 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2163 vec.sv_flags = osa.sa_flags; 2164 vec.sv_flags &= ~SA_NOCLDWAIT; 2165 vec.sv_flags ^= SA_RESTART; 2166 error = copyout(&vec, uap->osv, sizeof(vec)); 2167 } 2168 return (error); 2169 } 2170 2171 int 2172 ofreebsd32_sigblock(struct thread *td, 2173 struct ofreebsd32_sigblock_args *uap) 2174 { 2175 sigset_t set, oset; 2176 2177 OSIG2SIG(uap->mask, set); 2178 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2179 SIG2OSIG(oset, td->td_retval[0]); 2180 return (0); 2181 } 2182 2183 int 2184 ofreebsd32_sigsetmask(struct thread *td, 2185 struct ofreebsd32_sigsetmask_args *uap) 2186 { 2187 sigset_t set, oset; 2188 2189 OSIG2SIG(uap->mask, set); 2190 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2191 SIG2OSIG(oset, td->td_retval[0]); 2192 return (0); 2193 } 2194 2195 int 2196 ofreebsd32_sigsuspend(struct thread *td, 2197 struct ofreebsd32_sigsuspend_args *uap) 2198 { 2199 sigset_t mask; 2200 2201 OSIG2SIG(uap->mask, mask); 2202 return (kern_sigsuspend(td, mask)); 2203 } 2204 2205 struct sigstack32 { 2206 u_int32_t ss_sp; 2207 int ss_onstack; 2208 }; 2209 2210 int 2211 ofreebsd32_sigstack(struct thread *td, 2212 struct ofreebsd32_sigstack_args *uap) 2213 { 2214 struct sigstack32 s32; 2215 struct sigstack nss, oss; 2216 int error = 0, unss; 2217 2218 if (uap->nss != NULL) { 2219 error = copyin(uap->nss, &s32, sizeof(s32)); 2220 if (error) 2221 return (error); 2222 nss.ss_sp = PTRIN(s32.ss_sp); 2223 CP(s32, nss, ss_onstack); 2224 unss = 1; 2225 } else { 2226 unss = 0; 2227 } 2228 oss.ss_sp = td->td_sigstk.ss_sp; 2229 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2230 if (unss) { 2231 td->td_sigstk.ss_sp = nss.ss_sp; 2232 td->td_sigstk.ss_size = 0; 2233 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2234 td->td_pflags |= TDP_ALTSTACK; 2235 } 2236 if (uap->oss != NULL) { 2237 s32.ss_sp = PTROUT(oss.ss_sp); 2238 CP(oss, s32, ss_onstack); 2239 error = copyout(&s32, uap->oss, sizeof(s32)); 2240 } 2241 return (error); 2242 } 2243 #endif 2244 2245 int 2246 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2247 { 2248 2249 return (freebsd32_user_clock_nanosleep(td, CLOCK_REALTIME, 2250 TIMER_RELTIME, uap->rqtp, uap->rmtp)); 2251 } 2252 2253 int 2254 freebsd32_clock_nanosleep(struct thread *td, 2255 struct freebsd32_clock_nanosleep_args *uap) 2256 { 2257 int error; 2258 2259 error = freebsd32_user_clock_nanosleep(td, uap->clock_id, uap->flags, 2260 uap->rqtp, uap->rmtp); 2261 return (kern_posix_error(td, error)); 2262 } 2263 2264 static int 2265 freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id, 2266 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp) 2267 { 2268 struct timespec32 rmt32, rqt32; 2269 struct timespec rmt, rqt; 2270 int error; 2271 2272 error = copyin(ua_rqtp, &rqt32, sizeof(rqt32)); 2273 if (error) 2274 return (error); 2275 2276 CP(rqt32, rqt, tv_sec); 2277 CP(rqt32, rqt, tv_nsec); 2278 2279 if (ua_rmtp != NULL && (flags & TIMER_ABSTIME) == 0 && 2280 !useracc(ua_rmtp, sizeof(rmt32), VM_PROT_WRITE)) 2281 return (EFAULT); 2282 error = kern_clock_nanosleep(td, clock_id, flags, &rqt, &rmt); 2283 if (error == EINTR && ua_rmtp != NULL && (flags & TIMER_ABSTIME) == 0) { 2284 int error2; 2285 2286 CP(rmt, rmt32, tv_sec); 2287 CP(rmt, rmt32, tv_nsec); 2288 2289 error2 = copyout(&rmt32, ua_rmtp, sizeof(rmt32)); 2290 if (error2) 2291 error = error2; 2292 } 2293 return (error); 2294 } 2295 2296 int 2297 freebsd32_clock_gettime(struct thread *td, 2298 struct freebsd32_clock_gettime_args *uap) 2299 { 2300 struct timespec ats; 2301 struct timespec32 ats32; 2302 int error; 2303 2304 error = kern_clock_gettime(td, uap->clock_id, &ats); 2305 if (error == 0) { 2306 CP(ats, ats32, tv_sec); 2307 CP(ats, ats32, tv_nsec); 2308 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2309 } 2310 return (error); 2311 } 2312 2313 int 2314 freebsd32_clock_settime(struct thread *td, 2315 struct freebsd32_clock_settime_args *uap) 2316 { 2317 struct timespec ats; 2318 struct timespec32 ats32; 2319 int error; 2320 2321 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2322 if (error) 2323 return (error); 2324 CP(ats32, ats, tv_sec); 2325 CP(ats32, ats, tv_nsec); 2326 2327 return (kern_clock_settime(td, uap->clock_id, &ats)); 2328 } 2329 2330 int 2331 freebsd32_clock_getres(struct thread *td, 2332 struct freebsd32_clock_getres_args *uap) 2333 { 2334 struct timespec ts; 2335 struct timespec32 ts32; 2336 int error; 2337 2338 if (uap->tp == NULL) 2339 return (0); 2340 error = kern_clock_getres(td, uap->clock_id, &ts); 2341 if (error == 0) { 2342 CP(ts, ts32, tv_sec); 2343 CP(ts, ts32, tv_nsec); 2344 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2345 } 2346 return (error); 2347 } 2348 2349 int freebsd32_ktimer_create(struct thread *td, 2350 struct freebsd32_ktimer_create_args *uap) 2351 { 2352 struct sigevent32 ev32; 2353 struct sigevent ev, *evp; 2354 int error, id; 2355 2356 if (uap->evp == NULL) { 2357 evp = NULL; 2358 } else { 2359 evp = &ev; 2360 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2361 if (error != 0) 2362 return (error); 2363 error = convert_sigevent32(&ev32, &ev); 2364 if (error != 0) 2365 return (error); 2366 } 2367 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2368 if (error == 0) { 2369 error = copyout(&id, uap->timerid, sizeof(int)); 2370 if (error != 0) 2371 kern_ktimer_delete(td, id); 2372 } 2373 return (error); 2374 } 2375 2376 int 2377 freebsd32_ktimer_settime(struct thread *td, 2378 struct freebsd32_ktimer_settime_args *uap) 2379 { 2380 struct itimerspec32 val32, oval32; 2381 struct itimerspec val, oval, *ovalp; 2382 int error; 2383 2384 error = copyin(uap->value, &val32, sizeof(val32)); 2385 if (error != 0) 2386 return (error); 2387 ITS_CP(val32, val); 2388 ovalp = uap->ovalue != NULL ? &oval : NULL; 2389 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2390 if (error == 0 && uap->ovalue != NULL) { 2391 ITS_CP(oval, oval32); 2392 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2393 } 2394 return (error); 2395 } 2396 2397 int 2398 freebsd32_ktimer_gettime(struct thread *td, 2399 struct freebsd32_ktimer_gettime_args *uap) 2400 { 2401 struct itimerspec32 val32; 2402 struct itimerspec val; 2403 int error; 2404 2405 error = kern_ktimer_gettime(td, uap->timerid, &val); 2406 if (error == 0) { 2407 ITS_CP(val, val32); 2408 error = copyout(&val32, uap->value, sizeof(val32)); 2409 } 2410 return (error); 2411 } 2412 2413 int 2414 freebsd32_clock_getcpuclockid2(struct thread *td, 2415 struct freebsd32_clock_getcpuclockid2_args *uap) 2416 { 2417 clockid_t clk_id; 2418 int error; 2419 2420 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2421 uap->which, &clk_id); 2422 if (error == 0) 2423 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2424 return (error); 2425 } 2426 2427 int 2428 freebsd32_thr_new(struct thread *td, 2429 struct freebsd32_thr_new_args *uap) 2430 { 2431 struct thr_param32 param32; 2432 struct thr_param param; 2433 int error; 2434 2435 if (uap->param_size < 0 || 2436 uap->param_size > sizeof(struct thr_param32)) 2437 return (EINVAL); 2438 bzero(¶m, sizeof(struct thr_param)); 2439 bzero(¶m32, sizeof(struct thr_param32)); 2440 error = copyin(uap->param, ¶m32, uap->param_size); 2441 if (error != 0) 2442 return (error); 2443 param.start_func = PTRIN(param32.start_func); 2444 param.arg = PTRIN(param32.arg); 2445 param.stack_base = PTRIN(param32.stack_base); 2446 param.stack_size = param32.stack_size; 2447 param.tls_base = PTRIN(param32.tls_base); 2448 param.tls_size = param32.tls_size; 2449 param.child_tid = PTRIN(param32.child_tid); 2450 param.parent_tid = PTRIN(param32.parent_tid); 2451 param.flags = param32.flags; 2452 param.rtp = PTRIN(param32.rtp); 2453 param.spare[0] = PTRIN(param32.spare[0]); 2454 param.spare[1] = PTRIN(param32.spare[1]); 2455 param.spare[2] = PTRIN(param32.spare[2]); 2456 2457 return (kern_thr_new(td, ¶m)); 2458 } 2459 2460 int 2461 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2462 { 2463 struct timespec32 ts32; 2464 struct timespec ts, *tsp; 2465 int error; 2466 2467 error = 0; 2468 tsp = NULL; 2469 if (uap->timeout != NULL) { 2470 error = copyin((const void *)uap->timeout, (void *)&ts32, 2471 sizeof(struct timespec32)); 2472 if (error != 0) 2473 return (error); 2474 ts.tv_sec = ts32.tv_sec; 2475 ts.tv_nsec = ts32.tv_nsec; 2476 tsp = &ts; 2477 } 2478 return (kern_thr_suspend(td, tsp)); 2479 } 2480 2481 void 2482 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2483 { 2484 bzero(dst, sizeof(*dst)); 2485 dst->si_signo = src->si_signo; 2486 dst->si_errno = src->si_errno; 2487 dst->si_code = src->si_code; 2488 dst->si_pid = src->si_pid; 2489 dst->si_uid = src->si_uid; 2490 dst->si_status = src->si_status; 2491 dst->si_addr = (uintptr_t)src->si_addr; 2492 dst->si_value.sival_int = src->si_value.sival_int; 2493 dst->si_timerid = src->si_timerid; 2494 dst->si_overrun = src->si_overrun; 2495 } 2496 2497 #ifndef _FREEBSD32_SYSPROTO_H_ 2498 struct freebsd32_sigqueue_args { 2499 pid_t pid; 2500 int signum; 2501 /* union sigval32 */ int value; 2502 }; 2503 #endif 2504 int 2505 freebsd32_sigqueue(struct thread *td, struct freebsd32_sigqueue_args *uap) 2506 { 2507 union sigval sv; 2508 2509 /* 2510 * On 32-bit ABIs, sival_int and sival_ptr are the same. 2511 * On 64-bit little-endian ABIs, the low bits are the same. 2512 * In 64-bit big-endian ABIs, sival_int overlaps with 2513 * sival_ptr's HIGH bits. We choose to support sival_int 2514 * rather than sival_ptr in this case as it seems to be 2515 * more common. 2516 */ 2517 bzero(&sv, sizeof(sv)); 2518 sv.sival_int = uap->value; 2519 2520 return (kern_sigqueue(td, uap->pid, uap->signum, &sv)); 2521 } 2522 2523 int 2524 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2525 { 2526 struct timespec32 ts32; 2527 struct timespec ts; 2528 struct timespec *timeout; 2529 sigset_t set; 2530 ksiginfo_t ksi; 2531 struct siginfo32 si32; 2532 int error; 2533 2534 if (uap->timeout) { 2535 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2536 if (error) 2537 return (error); 2538 ts.tv_sec = ts32.tv_sec; 2539 ts.tv_nsec = ts32.tv_nsec; 2540 timeout = &ts; 2541 } else 2542 timeout = NULL; 2543 2544 error = copyin(uap->set, &set, sizeof(set)); 2545 if (error) 2546 return (error); 2547 2548 error = kern_sigtimedwait(td, set, &ksi, timeout); 2549 if (error) 2550 return (error); 2551 2552 if (uap->info) { 2553 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2554 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2555 } 2556 2557 if (error == 0) 2558 td->td_retval[0] = ksi.ksi_signo; 2559 return (error); 2560 } 2561 2562 /* 2563 * MPSAFE 2564 */ 2565 int 2566 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2567 { 2568 ksiginfo_t ksi; 2569 struct siginfo32 si32; 2570 sigset_t set; 2571 int error; 2572 2573 error = copyin(uap->set, &set, sizeof(set)); 2574 if (error) 2575 return (error); 2576 2577 error = kern_sigtimedwait(td, set, &ksi, NULL); 2578 if (error) 2579 return (error); 2580 2581 if (uap->info) { 2582 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2583 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2584 } 2585 if (error == 0) 2586 td->td_retval[0] = ksi.ksi_signo; 2587 return (error); 2588 } 2589 2590 int 2591 freebsd32_cpuset_setid(struct thread *td, 2592 struct freebsd32_cpuset_setid_args *uap) 2593 { 2594 2595 return (kern_cpuset_setid(td, uap->which, 2596 PAIR32TO64(id_t, uap->id), uap->setid)); 2597 } 2598 2599 int 2600 freebsd32_cpuset_getid(struct thread *td, 2601 struct freebsd32_cpuset_getid_args *uap) 2602 { 2603 2604 return (kern_cpuset_getid(td, uap->level, uap->which, 2605 PAIR32TO64(id_t, uap->id), uap->setid)); 2606 } 2607 2608 int 2609 freebsd32_cpuset_getaffinity(struct thread *td, 2610 struct freebsd32_cpuset_getaffinity_args *uap) 2611 { 2612 2613 return (kern_cpuset_getaffinity(td, uap->level, uap->which, 2614 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask)); 2615 } 2616 2617 int 2618 freebsd32_cpuset_setaffinity(struct thread *td, 2619 struct freebsd32_cpuset_setaffinity_args *uap) 2620 { 2621 2622 return (kern_cpuset_setaffinity(td, uap->level, uap->which, 2623 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask)); 2624 } 2625 2626 int 2627 freebsd32_nmount(struct thread *td, 2628 struct freebsd32_nmount_args /* { 2629 struct iovec *iovp; 2630 unsigned int iovcnt; 2631 int flags; 2632 } */ *uap) 2633 { 2634 struct uio *auio; 2635 uint64_t flags; 2636 int error; 2637 2638 /* 2639 * Mount flags are now 64-bits. On 32-bit archtectures only 2640 * 32-bits are passed in, but from here on everything handles 2641 * 64-bit flags correctly. 2642 */ 2643 flags = uap->flags; 2644 2645 AUDIT_ARG_FFLAGS(flags); 2646 2647 /* 2648 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2649 * userspace to set this flag, but we must filter it out if we want 2650 * MNT_UPDATE on the root file system to work. 2651 * MNT_ROOTFS should only be set by the kernel when mounting its 2652 * root file system. 2653 */ 2654 flags &= ~MNT_ROOTFS; 2655 2656 /* 2657 * check that we have an even number of iovec's 2658 * and that we have at least two options. 2659 */ 2660 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2661 return (EINVAL); 2662 2663 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2664 if (error) 2665 return (error); 2666 error = vfs_donmount(td, flags, auio); 2667 2668 free(auio, M_IOV); 2669 return error; 2670 } 2671 2672 #if 0 2673 int 2674 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2675 { 2676 struct yyy32 *p32, s32; 2677 struct yyy *p = NULL, s; 2678 struct xxx_arg ap; 2679 int error; 2680 2681 if (uap->zzz) { 2682 error = copyin(uap->zzz, &s32, sizeof(s32)); 2683 if (error) 2684 return (error); 2685 /* translate in */ 2686 p = &s; 2687 } 2688 error = kern_xxx(td, p); 2689 if (error) 2690 return (error); 2691 if (uap->zzz) { 2692 /* translate out */ 2693 error = copyout(&s32, p32, sizeof(s32)); 2694 } 2695 return (error); 2696 } 2697 #endif 2698 2699 int 2700 syscall32_register(int *offset, struct sysent *new_sysent, 2701 struct sysent *old_sysent, int flags) 2702 { 2703 2704 if ((flags & ~SY_THR_STATIC) != 0) 2705 return (EINVAL); 2706 2707 if (*offset == NO_SYSCALL) { 2708 int i; 2709 2710 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2711 if (freebsd32_sysent[i].sy_call == 2712 (sy_call_t *)lkmnosys) 2713 break; 2714 if (i == SYS_MAXSYSCALL) 2715 return (ENFILE); 2716 *offset = i; 2717 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2718 return (EINVAL); 2719 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2720 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2721 return (EEXIST); 2722 2723 *old_sysent = freebsd32_sysent[*offset]; 2724 freebsd32_sysent[*offset] = *new_sysent; 2725 atomic_store_rel_32(&freebsd32_sysent[*offset].sy_thrcnt, flags); 2726 return (0); 2727 } 2728 2729 int 2730 syscall32_deregister(int *offset, struct sysent *old_sysent) 2731 { 2732 2733 if (*offset == 0) 2734 return (0); 2735 2736 freebsd32_sysent[*offset] = *old_sysent; 2737 return (0); 2738 } 2739 2740 int 2741 syscall32_module_handler(struct module *mod, int what, void *arg) 2742 { 2743 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2744 modspecific_t ms; 2745 int error; 2746 2747 switch (what) { 2748 case MOD_LOAD: 2749 error = syscall32_register(data->offset, data->new_sysent, 2750 &data->old_sysent, SY_THR_STATIC_KLD); 2751 if (error) { 2752 /* Leave a mark so we know to safely unload below. */ 2753 data->offset = NULL; 2754 return error; 2755 } 2756 ms.intval = *data->offset; 2757 MOD_XLOCK; 2758 module_setspecific(mod, &ms); 2759 MOD_XUNLOCK; 2760 if (data->chainevh) 2761 error = data->chainevh(mod, what, data->chainarg); 2762 return (error); 2763 case MOD_UNLOAD: 2764 /* 2765 * MOD_LOAD failed, so just return without calling the 2766 * chained handler since we didn't pass along the MOD_LOAD 2767 * event. 2768 */ 2769 if (data->offset == NULL) 2770 return (0); 2771 if (data->chainevh) { 2772 error = data->chainevh(mod, what, data->chainarg); 2773 if (error) 2774 return (error); 2775 } 2776 error = syscall32_deregister(data->offset, &data->old_sysent); 2777 return (error); 2778 default: 2779 error = EOPNOTSUPP; 2780 if (data->chainevh) 2781 error = data->chainevh(mod, what, data->chainarg); 2782 return (error); 2783 } 2784 } 2785 2786 int 2787 syscall32_helper_register(struct syscall_helper_data *sd, int flags) 2788 { 2789 struct syscall_helper_data *sd1; 2790 int error; 2791 2792 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2793 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2794 &sd1->old_sysent, flags); 2795 if (error != 0) { 2796 syscall32_helper_unregister(sd); 2797 return (error); 2798 } 2799 sd1->registered = 1; 2800 } 2801 return (0); 2802 } 2803 2804 int 2805 syscall32_helper_unregister(struct syscall_helper_data *sd) 2806 { 2807 struct syscall_helper_data *sd1; 2808 2809 for (sd1 = sd; sd1->registered != 0; sd1++) { 2810 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2811 sd1->registered = 0; 2812 } 2813 return (0); 2814 } 2815 2816 register_t * 2817 freebsd32_copyout_strings(struct image_params *imgp) 2818 { 2819 int argc, envc, i; 2820 u_int32_t *vectp; 2821 char *stringp; 2822 uintptr_t destp; 2823 u_int32_t *stack_base; 2824 struct freebsd32_ps_strings *arginfo; 2825 char canary[sizeof(long) * 8]; 2826 int32_t pagesizes32[MAXPAGESIZES]; 2827 size_t execpath_len; 2828 int szsigcode; 2829 2830 /* 2831 * Calculate string base and vector table pointers. 2832 * Also deal with signal trampoline code for this exec type. 2833 */ 2834 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2835 execpath_len = strlen(imgp->execpath) + 1; 2836 else 2837 execpath_len = 0; 2838 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2839 sv_psstrings; 2840 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2841 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2842 else 2843 szsigcode = 0; 2844 destp = (uintptr_t)arginfo; 2845 2846 /* 2847 * install sigcode 2848 */ 2849 if (szsigcode != 0) { 2850 destp -= szsigcode; 2851 destp = rounddown2(destp, sizeof(uint32_t)); 2852 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2853 szsigcode); 2854 } 2855 2856 /* 2857 * Copy the image path for the rtld. 2858 */ 2859 if (execpath_len != 0) { 2860 destp -= execpath_len; 2861 imgp->execpathp = destp; 2862 copyout(imgp->execpath, (void *)destp, execpath_len); 2863 } 2864 2865 /* 2866 * Prepare the canary for SSP. 2867 */ 2868 arc4rand(canary, sizeof(canary), 0); 2869 destp -= sizeof(canary); 2870 imgp->canary = destp; 2871 copyout(canary, (void *)destp, sizeof(canary)); 2872 imgp->canarylen = sizeof(canary); 2873 2874 /* 2875 * Prepare the pagesizes array. 2876 */ 2877 for (i = 0; i < MAXPAGESIZES; i++) 2878 pagesizes32[i] = (uint32_t)pagesizes[i]; 2879 destp -= sizeof(pagesizes32); 2880 destp = rounddown2(destp, sizeof(uint32_t)); 2881 imgp->pagesizes = destp; 2882 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2883 imgp->pagesizeslen = sizeof(pagesizes32); 2884 2885 destp -= ARG_MAX - imgp->args->stringspace; 2886 destp = rounddown2(destp, sizeof(uint32_t)); 2887 2888 /* 2889 * If we have a valid auxargs ptr, prepare some room 2890 * on the stack. 2891 */ 2892 if (imgp->auxargs) { 2893 /* 2894 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2895 * lower compatibility. 2896 */ 2897 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2898 : (AT_COUNT * 2); 2899 /* 2900 * The '+ 2' is for the null pointers at the end of each of 2901 * the arg and env vector sets,and imgp->auxarg_size is room 2902 * for argument of Runtime loader. 2903 */ 2904 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2905 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2906 sizeof(u_int32_t)); 2907 } else { 2908 /* 2909 * The '+ 2' is for the null pointers at the end of each of 2910 * the arg and env vector sets 2911 */ 2912 vectp = (u_int32_t *)(destp - (imgp->args->argc + 2913 imgp->args->envc + 2) * sizeof(u_int32_t)); 2914 } 2915 2916 /* 2917 * vectp also becomes our initial stack base 2918 */ 2919 stack_base = vectp; 2920 2921 stringp = imgp->args->begin_argv; 2922 argc = imgp->args->argc; 2923 envc = imgp->args->envc; 2924 /* 2925 * Copy out strings - arguments and environment. 2926 */ 2927 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2928 2929 /* 2930 * Fill in "ps_strings" struct for ps, w, etc. 2931 */ 2932 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2933 suword32(&arginfo->ps_nargvstr, argc); 2934 2935 /* 2936 * Fill in argument portion of vector table. 2937 */ 2938 for (; argc > 0; --argc) { 2939 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2940 while (*stringp++ != 0) 2941 destp++; 2942 destp++; 2943 } 2944 2945 /* a null vector table pointer separates the argp's from the envp's */ 2946 suword32(vectp++, 0); 2947 2948 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2949 suword32(&arginfo->ps_nenvstr, envc); 2950 2951 /* 2952 * Fill in environment portion of vector table. 2953 */ 2954 for (; envc > 0; --envc) { 2955 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2956 while (*stringp++ != 0) 2957 destp++; 2958 destp++; 2959 } 2960 2961 /* end of vector table is a null pointer */ 2962 suword32(vectp, 0); 2963 2964 return ((register_t *)stack_base); 2965 } 2966 2967 int 2968 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2969 { 2970 struct kld_file_stat *stat; 2971 struct kld32_file_stat *stat32; 2972 int error, version; 2973 2974 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2975 != 0) 2976 return (error); 2977 if (version != sizeof(struct kld32_file_stat_1) && 2978 version != sizeof(struct kld32_file_stat)) 2979 return (EINVAL); 2980 2981 stat = malloc(sizeof(*stat), M_TEMP, M_WAITOK | M_ZERO); 2982 stat32 = malloc(sizeof(*stat32), M_TEMP, M_WAITOK | M_ZERO); 2983 error = kern_kldstat(td, uap->fileid, stat); 2984 if (error == 0) { 2985 bcopy(&stat->name[0], &stat32->name[0], sizeof(stat->name)); 2986 CP(*stat, *stat32, refs); 2987 CP(*stat, *stat32, id); 2988 PTROUT_CP(*stat, *stat32, address); 2989 CP(*stat, *stat32, size); 2990 bcopy(&stat->pathname[0], &stat32->pathname[0], 2991 sizeof(stat->pathname)); 2992 stat32->version = version; 2993 error = copyout(stat32, uap->stat, version); 2994 } 2995 free(stat, M_TEMP); 2996 free(stat32, M_TEMP); 2997 return (error); 2998 } 2999 3000 int 3001 freebsd32_posix_fallocate(struct thread *td, 3002 struct freebsd32_posix_fallocate_args *uap) 3003 { 3004 int error; 3005 3006 error = kern_posix_fallocate(td, uap->fd, 3007 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 3008 return (kern_posix_error(td, error)); 3009 } 3010 3011 int 3012 freebsd32_posix_fadvise(struct thread *td, 3013 struct freebsd32_posix_fadvise_args *uap) 3014 { 3015 int error; 3016 3017 error = kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset), 3018 PAIR32TO64(off_t, uap->len), uap->advice); 3019 return (kern_posix_error(td, error)); 3020 } 3021 3022 int 3023 convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 3024 { 3025 3026 CP(*sig32, *sig, sigev_notify); 3027 switch (sig->sigev_notify) { 3028 case SIGEV_NONE: 3029 break; 3030 case SIGEV_THREAD_ID: 3031 CP(*sig32, *sig, sigev_notify_thread_id); 3032 /* FALLTHROUGH */ 3033 case SIGEV_SIGNAL: 3034 CP(*sig32, *sig, sigev_signo); 3035 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3036 break; 3037 case SIGEV_KEVENT: 3038 CP(*sig32, *sig, sigev_notify_kqueue); 3039 CP(*sig32, *sig, sigev_notify_kevent_flags); 3040 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3041 break; 3042 default: 3043 return (EINVAL); 3044 } 3045 return (0); 3046 } 3047 3048 int 3049 freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3050 { 3051 void *data; 3052 union { 3053 struct procctl_reaper_status rs; 3054 struct procctl_reaper_pids rp; 3055 struct procctl_reaper_kill rk; 3056 } x; 3057 union { 3058 struct procctl_reaper_pids32 rp; 3059 } x32; 3060 int error, error1, flags, signum; 3061 3062 switch (uap->com) { 3063 case PROC_SPROTECT: 3064 case PROC_TRACE_CTL: 3065 case PROC_TRAPCAP_CTL: 3066 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3067 if (error != 0) 3068 return (error); 3069 data = &flags; 3070 break; 3071 case PROC_REAP_ACQUIRE: 3072 case PROC_REAP_RELEASE: 3073 if (uap->data != NULL) 3074 return (EINVAL); 3075 data = NULL; 3076 break; 3077 case PROC_REAP_STATUS: 3078 data = &x.rs; 3079 break; 3080 case PROC_REAP_GETPIDS: 3081 error = copyin(uap->data, &x32.rp, sizeof(x32.rp)); 3082 if (error != 0) 3083 return (error); 3084 CP(x32.rp, x.rp, rp_count); 3085 PTRIN_CP(x32.rp, x.rp, rp_pids); 3086 data = &x.rp; 3087 break; 3088 case PROC_REAP_KILL: 3089 error = copyin(uap->data, &x.rk, sizeof(x.rk)); 3090 if (error != 0) 3091 return (error); 3092 data = &x.rk; 3093 break; 3094 case PROC_TRACE_STATUS: 3095 case PROC_TRAPCAP_STATUS: 3096 data = &flags; 3097 break; 3098 case PROC_PDEATHSIG_CTL: 3099 error = copyin(uap->data, &signum, sizeof(signum)); 3100 if (error != 0) 3101 return (error); 3102 data = &signum; 3103 break; 3104 case PROC_PDEATHSIG_STATUS: 3105 data = &signum; 3106 break; 3107 default: 3108 return (EINVAL); 3109 } 3110 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3111 uap->com, data); 3112 switch (uap->com) { 3113 case PROC_REAP_STATUS: 3114 if (error == 0) 3115 error = copyout(&x.rs, uap->data, sizeof(x.rs)); 3116 break; 3117 case PROC_REAP_KILL: 3118 error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); 3119 if (error == 0) 3120 error = error1; 3121 break; 3122 case PROC_TRACE_STATUS: 3123 case PROC_TRAPCAP_STATUS: 3124 if (error == 0) 3125 error = copyout(&flags, uap->data, sizeof(flags)); 3126 break; 3127 case PROC_PDEATHSIG_STATUS: 3128 if (error == 0) 3129 error = copyout(&signum, uap->data, sizeof(signum)); 3130 break; 3131 } 3132 return (error); 3133 } 3134 3135 int 3136 freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 3137 { 3138 long tmp; 3139 3140 switch (uap->cmd) { 3141 /* 3142 * Do unsigned conversion for arg when operation 3143 * interprets it as flags or pointer. 3144 */ 3145 case F_SETLK_REMOTE: 3146 case F_SETLKW: 3147 case F_SETLK: 3148 case F_GETLK: 3149 case F_SETFD: 3150 case F_SETFL: 3151 case F_OGETLK: 3152 case F_OSETLK: 3153 case F_OSETLKW: 3154 tmp = (unsigned int)(uap->arg); 3155 break; 3156 default: 3157 tmp = uap->arg; 3158 break; 3159 } 3160 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 3161 } 3162 3163 int 3164 freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap) 3165 { 3166 struct timespec32 ts32; 3167 struct timespec ts, *tsp; 3168 sigset_t set, *ssp; 3169 int error; 3170 3171 if (uap->ts != NULL) { 3172 error = copyin(uap->ts, &ts32, sizeof(ts32)); 3173 if (error != 0) 3174 return (error); 3175 CP(ts32, ts, tv_sec); 3176 CP(ts32, ts, tv_nsec); 3177 tsp = &ts; 3178 } else 3179 tsp = NULL; 3180 if (uap->set != NULL) { 3181 error = copyin(uap->set, &set, sizeof(set)); 3182 if (error != 0) 3183 return (error); 3184 ssp = &set; 3185 } else 3186 ssp = NULL; 3187 3188 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp)); 3189 }
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