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/11.1/sys/compat/freebsd32/freebsd32_misc.c 325875 2017-11-15 22:49:47Z gordon $"); 29 30 #include "opt_compat.h" 31 #include "opt_inet.h" 32 #include "opt_inet6.h" 33 34 #define __ELF_WORD_SIZE 32 35 36 #include <sys/param.h> 37 #include <sys/bus.h> 38 #include <sys/capsicum.h> 39 #include <sys/clock.h> 40 #include <sys/exec.h> 41 #include <sys/fcntl.h> 42 #include <sys/filedesc.h> 43 #include <sys/imgact.h> 44 #include <sys/jail.h> 45 #include <sys/kernel.h> 46 #include <sys/limits.h> 47 #include <sys/linker.h> 48 #include <sys/lock.h> 49 #include <sys/malloc.h> 50 #include <sys/file.h> /* Must come after sys/malloc.h */ 51 #include <sys/imgact.h> 52 #include <sys/mbuf.h> 53 #include <sys/mman.h> 54 #include <sys/module.h> 55 #include <sys/mount.h> 56 #include <sys/mutex.h> 57 #include <sys/namei.h> 58 #include <sys/proc.h> 59 #include <sys/procctl.h> 60 #include <sys/reboot.h> 61 #include <sys/resource.h> 62 #include <sys/resourcevar.h> 63 #include <sys/selinfo.h> 64 #include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 65 #include <sys/pipe.h> /* Must come after sys/selinfo.h */ 66 #include <sys/signal.h> 67 #include <sys/signalvar.h> 68 #include <sys/socket.h> 69 #include <sys/socketvar.h> 70 #include <sys/stat.h> 71 #include <sys/syscall.h> 72 #include <sys/syscallsubr.h> 73 #include <sys/sysctl.h> 74 #include <sys/sysent.h> 75 #include <sys/sysproto.h> 76 #include <sys/systm.h> 77 #include <sys/thr.h> 78 #include <sys/unistd.h> 79 #include <sys/ucontext.h> 80 #include <sys/vnode.h> 81 #include <sys/wait.h> 82 #include <sys/ipc.h> 83 #include <sys/msg.h> 84 #include <sys/sem.h> 85 #include <sys/shm.h> 86 87 #ifdef INET 88 #include <netinet/in.h> 89 #endif 90 91 #include <vm/vm.h> 92 #include <vm/vm_param.h> 93 #include <vm/pmap.h> 94 #include <vm/vm_map.h> 95 #include <vm/vm_object.h> 96 #include <vm/vm_extern.h> 97 98 #include <machine/cpu.h> 99 #include <machine/elf.h> 100 101 #include <security/audit/audit.h> 102 103 #include <compat/freebsd32/freebsd32_util.h> 104 #include <compat/freebsd32/freebsd32.h> 105 #include <compat/freebsd32/freebsd32_ipc.h> 106 #include <compat/freebsd32/freebsd32_misc.h> 107 #include <compat/freebsd32/freebsd32_signal.h> 108 #include <compat/freebsd32/freebsd32_proto.h> 109 110 FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD"); 111 112 #ifndef __mips__ 113 CTASSERT(sizeof(struct timeval32) == 8); 114 CTASSERT(sizeof(struct timespec32) == 8); 115 CTASSERT(sizeof(struct itimerval32) == 16); 116 #endif 117 CTASSERT(sizeof(struct statfs32) == 256); 118 #ifndef __mips__ 119 CTASSERT(sizeof(struct rusage32) == 72); 120 #endif 121 CTASSERT(sizeof(struct sigaltstack32) == 12); 122 CTASSERT(sizeof(struct kevent32) == 20); 123 CTASSERT(sizeof(struct iovec32) == 8); 124 CTASSERT(sizeof(struct msghdr32) == 28); 125 #ifndef __mips__ 126 CTASSERT(sizeof(struct stat32) == 96); 127 #endif 128 CTASSERT(sizeof(struct sigaction32) == 24); 129 130 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 131 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 132 static int freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id, 133 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp); 134 135 void 136 freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 137 { 138 139 TV_CP(*s, *s32, ru_utime); 140 TV_CP(*s, *s32, ru_stime); 141 CP(*s, *s32, ru_maxrss); 142 CP(*s, *s32, ru_ixrss); 143 CP(*s, *s32, ru_idrss); 144 CP(*s, *s32, ru_isrss); 145 CP(*s, *s32, ru_minflt); 146 CP(*s, *s32, ru_majflt); 147 CP(*s, *s32, ru_nswap); 148 CP(*s, *s32, ru_inblock); 149 CP(*s, *s32, ru_oublock); 150 CP(*s, *s32, ru_msgsnd); 151 CP(*s, *s32, ru_msgrcv); 152 CP(*s, *s32, ru_nsignals); 153 CP(*s, *s32, ru_nvcsw); 154 CP(*s, *s32, ru_nivcsw); 155 } 156 157 int 158 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 159 { 160 int error, status; 161 struct rusage32 ru32; 162 struct rusage ru, *rup; 163 164 if (uap->rusage != NULL) 165 rup = &ru; 166 else 167 rup = NULL; 168 error = kern_wait(td, uap->pid, &status, uap->options, rup); 169 if (error) 170 return (error); 171 if (uap->status != NULL) 172 error = copyout(&status, uap->status, sizeof(status)); 173 if (uap->rusage != NULL && error == 0) { 174 freebsd32_rusage_out(&ru, &ru32); 175 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 176 } 177 return (error); 178 } 179 180 int 181 freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap) 182 { 183 struct wrusage32 wru32; 184 struct __wrusage wru, *wrup; 185 struct siginfo32 si32; 186 struct __siginfo si, *sip; 187 int error, status; 188 189 if (uap->wrusage != NULL) 190 wrup = &wru; 191 else 192 wrup = NULL; 193 if (uap->info != NULL) { 194 sip = &si; 195 bzero(sip, sizeof(*sip)); 196 } else 197 sip = NULL; 198 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id), 199 &status, uap->options, wrup, sip); 200 if (error != 0) 201 return (error); 202 if (uap->status != NULL) 203 error = copyout(&status, uap->status, sizeof(status)); 204 if (uap->wrusage != NULL && error == 0) { 205 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self); 206 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children); 207 error = copyout(&wru32, uap->wrusage, sizeof(wru32)); 208 } 209 if (uap->info != NULL && error == 0) { 210 siginfo_to_siginfo32 (&si, &si32); 211 error = copyout(&si32, uap->info, sizeof(si32)); 212 } 213 return (error); 214 } 215 216 #ifdef COMPAT_FREEBSD4 217 static void 218 copy_statfs(struct statfs *in, struct statfs32 *out) 219 { 220 221 statfs_scale_blocks(in, INT32_MAX); 222 bzero(out, sizeof(*out)); 223 CP(*in, *out, f_bsize); 224 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 225 CP(*in, *out, f_blocks); 226 CP(*in, *out, f_bfree); 227 CP(*in, *out, f_bavail); 228 out->f_files = MIN(in->f_files, INT32_MAX); 229 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 230 CP(*in, *out, f_fsid); 231 CP(*in, *out, f_owner); 232 CP(*in, *out, f_type); 233 CP(*in, *out, f_flags); 234 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 235 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 236 strlcpy(out->f_fstypename, 237 in->f_fstypename, MFSNAMELEN); 238 strlcpy(out->f_mntonname, 239 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 240 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 241 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 242 strlcpy(out->f_mntfromname, 243 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 244 } 245 #endif 246 247 #ifdef COMPAT_FREEBSD4 248 int 249 freebsd4_freebsd32_getfsstat(struct thread *td, 250 struct freebsd4_freebsd32_getfsstat_args *uap) 251 { 252 struct statfs *buf, *sp; 253 struct statfs32 stat32; 254 size_t count, size, copycount; 255 int error; 256 257 count = uap->bufsize / sizeof(struct statfs32); 258 size = count * sizeof(struct statfs); 259 error = kern_getfsstat(td, &buf, size, &count, UIO_SYSSPACE, uap->mode); 260 if (size > 0) { 261 sp = buf; 262 copycount = count; 263 while (copycount > 0 && error == 0) { 264 copy_statfs(sp, &stat32); 265 error = copyout(&stat32, uap->buf, sizeof(stat32)); 266 sp++; 267 uap->buf++; 268 copycount--; 269 } 270 free(buf, M_STATFS); 271 } 272 if (error == 0) 273 td->td_retval[0] = count; 274 return (error); 275 } 276 #endif 277 278 #ifdef COMPAT_FREEBSD10 279 int 280 freebsd10_freebsd32_pipe(struct thread *td, 281 struct freebsd10_freebsd32_pipe_args *uap) { 282 283 return (freebsd10_pipe(td, (struct freebsd10_pipe_args*)uap)); 284 } 285 #endif 286 287 int 288 freebsd32_sigaltstack(struct thread *td, 289 struct freebsd32_sigaltstack_args *uap) 290 { 291 struct sigaltstack32 s32; 292 struct sigaltstack ss, oss, *ssp; 293 int error; 294 295 if (uap->ss != NULL) { 296 error = copyin(uap->ss, &s32, sizeof(s32)); 297 if (error) 298 return (error); 299 PTRIN_CP(s32, ss, ss_sp); 300 CP(s32, ss, ss_size); 301 CP(s32, ss, ss_flags); 302 ssp = &ss; 303 } else 304 ssp = NULL; 305 error = kern_sigaltstack(td, ssp, &oss); 306 if (error == 0 && uap->oss != NULL) { 307 PTROUT_CP(oss, s32, ss_sp); 308 CP(oss, s32, ss_size); 309 CP(oss, s32, ss_flags); 310 error = copyout(&s32, uap->oss, sizeof(s32)); 311 } 312 return (error); 313 } 314 315 /* 316 * Custom version of exec_copyin_args() so that we can translate 317 * the pointers. 318 */ 319 int 320 freebsd32_exec_copyin_args(struct image_args *args, char *fname, 321 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 322 { 323 char *argp, *envp; 324 u_int32_t *p32, arg; 325 size_t length; 326 int error; 327 328 bzero(args, sizeof(*args)); 329 if (argv == NULL) 330 return (EFAULT); 331 332 /* 333 * Allocate demand-paged memory for the file name, argument, and 334 * environment strings. 335 */ 336 error = exec_alloc_args(args); 337 if (error != 0) 338 return (error); 339 340 /* 341 * Copy the file name. 342 */ 343 if (fname != NULL) { 344 args->fname = args->buf; 345 error = (segflg == UIO_SYSSPACE) ? 346 copystr(fname, args->fname, PATH_MAX, &length) : 347 copyinstr(fname, args->fname, PATH_MAX, &length); 348 if (error != 0) 349 goto err_exit; 350 } else 351 length = 0; 352 353 args->begin_argv = args->buf + length; 354 args->endp = args->begin_argv; 355 args->stringspace = ARG_MAX; 356 357 /* 358 * extract arguments first 359 */ 360 p32 = argv; 361 for (;;) { 362 error = copyin(p32++, &arg, sizeof(arg)); 363 if (error) 364 goto err_exit; 365 if (arg == 0) 366 break; 367 argp = PTRIN(arg); 368 error = copyinstr(argp, args->endp, args->stringspace, &length); 369 if (error) { 370 if (error == ENAMETOOLONG) 371 error = E2BIG; 372 goto err_exit; 373 } 374 args->stringspace -= length; 375 args->endp += length; 376 args->argc++; 377 } 378 379 args->begin_envv = args->endp; 380 381 /* 382 * extract environment strings 383 */ 384 if (envv) { 385 p32 = envv; 386 for (;;) { 387 error = copyin(p32++, &arg, sizeof(arg)); 388 if (error) 389 goto err_exit; 390 if (arg == 0) 391 break; 392 envp = PTRIN(arg); 393 error = copyinstr(envp, args->endp, args->stringspace, 394 &length); 395 if (error) { 396 if (error == ENAMETOOLONG) 397 error = E2BIG; 398 goto err_exit; 399 } 400 args->stringspace -= length; 401 args->endp += length; 402 args->envc++; 403 } 404 } 405 406 return (0); 407 408 err_exit: 409 exec_free_args(args); 410 return (error); 411 } 412 413 int 414 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 415 { 416 struct image_args eargs; 417 struct vmspace *oldvmspace; 418 int error; 419 420 error = pre_execve(td, &oldvmspace); 421 if (error != 0) 422 return (error); 423 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 424 uap->argv, uap->envv); 425 if (error == 0) 426 error = kern_execve(td, &eargs, NULL); 427 post_execve(td, error, oldvmspace); 428 return (error); 429 } 430 431 int 432 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 433 { 434 struct image_args eargs; 435 struct vmspace *oldvmspace; 436 int error; 437 438 error = pre_execve(td, &oldvmspace); 439 if (error != 0) 440 return (error); 441 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 442 uap->argv, uap->envv); 443 if (error == 0) { 444 eargs.fd = uap->fd; 445 error = kern_execve(td, &eargs, NULL); 446 } 447 post_execve(td, error, oldvmspace); 448 return (error); 449 } 450 451 int 452 freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 453 { 454 int prot; 455 456 prot = uap->prot; 457 #if defined(__amd64__) 458 if (i386_read_exec && (prot & PROT_READ) != 0) 459 prot |= PROT_EXEC; 460 #endif 461 return (kern_mprotect(td, (uintptr_t)PTRIN(uap->addr), uap->len, 462 prot)); 463 } 464 465 int 466 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 467 { 468 int prot; 469 470 prot = uap->prot; 471 #if defined(__amd64__) 472 if (i386_read_exec && (prot & PROT_READ)) 473 prot |= PROT_EXEC; 474 #endif 475 476 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot, 477 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos))); 478 } 479 480 #ifdef COMPAT_FREEBSD6 481 int 482 freebsd6_freebsd32_mmap(struct thread *td, 483 struct freebsd6_freebsd32_mmap_args *uap) 484 { 485 int prot; 486 487 prot = uap->prot; 488 #if defined(__amd64__) 489 if (i386_read_exec && (prot & PROT_READ)) 490 prot |= PROT_EXEC; 491 #endif 492 493 return (kern_mmap(td, (uintptr_t)uap->addr, uap->len, prot, 494 uap->flags, uap->fd, PAIR32TO64(off_t, uap->pos))); 495 } 496 #endif 497 498 int 499 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 500 { 501 struct itimerval itv, oitv, *itvp; 502 struct itimerval32 i32; 503 int error; 504 505 if (uap->itv != NULL) { 506 error = copyin(uap->itv, &i32, sizeof(i32)); 507 if (error) 508 return (error); 509 TV_CP(i32, itv, it_interval); 510 TV_CP(i32, itv, it_value); 511 itvp = &itv; 512 } else 513 itvp = NULL; 514 error = kern_setitimer(td, uap->which, itvp, &oitv); 515 if (error || uap->oitv == NULL) 516 return (error); 517 TV_CP(oitv, i32, it_interval); 518 TV_CP(oitv, i32, it_value); 519 return (copyout(&i32, uap->oitv, sizeof(i32))); 520 } 521 522 int 523 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 524 { 525 struct itimerval itv; 526 struct itimerval32 i32; 527 int error; 528 529 error = kern_getitimer(td, uap->which, &itv); 530 if (error || uap->itv == NULL) 531 return (error); 532 TV_CP(itv, i32, it_interval); 533 TV_CP(itv, i32, it_value); 534 return (copyout(&i32, uap->itv, sizeof(i32))); 535 } 536 537 int 538 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 539 { 540 struct timeval32 tv32; 541 struct timeval tv, *tvp; 542 int error; 543 544 if (uap->tv != NULL) { 545 error = copyin(uap->tv, &tv32, sizeof(tv32)); 546 if (error) 547 return (error); 548 CP(tv32, tv, tv_sec); 549 CP(tv32, tv, tv_usec); 550 tvp = &tv; 551 } else 552 tvp = NULL; 553 /* 554 * XXX Do pointers need PTRIN()? 555 */ 556 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 557 sizeof(int32_t) * 8)); 558 } 559 560 int 561 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 562 { 563 struct timespec32 ts32; 564 struct timespec ts; 565 struct timeval tv, *tvp; 566 sigset_t set, *uset; 567 int error; 568 569 if (uap->ts != NULL) { 570 error = copyin(uap->ts, &ts32, sizeof(ts32)); 571 if (error != 0) 572 return (error); 573 CP(ts32, ts, tv_sec); 574 CP(ts32, ts, tv_nsec); 575 TIMESPEC_TO_TIMEVAL(&tv, &ts); 576 tvp = &tv; 577 } else 578 tvp = NULL; 579 if (uap->sm != NULL) { 580 error = copyin(uap->sm, &set, sizeof(set)); 581 if (error != 0) 582 return (error); 583 uset = &set; 584 } else 585 uset = NULL; 586 /* 587 * XXX Do pointers need PTRIN()? 588 */ 589 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 590 uset, sizeof(int32_t) * 8); 591 return (error); 592 } 593 594 /* 595 * Copy 'count' items into the destination list pointed to by uap->eventlist. 596 */ 597 static int 598 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 599 { 600 struct freebsd32_kevent_args *uap; 601 struct kevent32 ks32[KQ_NEVENTS]; 602 int i, error = 0; 603 604 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 605 uap = (struct freebsd32_kevent_args *)arg; 606 607 for (i = 0; i < count; i++) { 608 CP(kevp[i], ks32[i], ident); 609 CP(kevp[i], ks32[i], filter); 610 CP(kevp[i], ks32[i], flags); 611 CP(kevp[i], ks32[i], fflags); 612 CP(kevp[i], ks32[i], data); 613 PTROUT_CP(kevp[i], ks32[i], udata); 614 } 615 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 616 if (error == 0) 617 uap->eventlist += count; 618 return (error); 619 } 620 621 /* 622 * Copy 'count' items from the list pointed to by uap->changelist. 623 */ 624 static int 625 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 626 { 627 struct freebsd32_kevent_args *uap; 628 struct kevent32 ks32[KQ_NEVENTS]; 629 int i, error = 0; 630 631 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 632 uap = (struct freebsd32_kevent_args *)arg; 633 634 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 635 if (error) 636 goto done; 637 uap->changelist += count; 638 639 for (i = 0; i < count; i++) { 640 CP(ks32[i], kevp[i], ident); 641 CP(ks32[i], kevp[i], filter); 642 CP(ks32[i], kevp[i], flags); 643 CP(ks32[i], kevp[i], fflags); 644 CP(ks32[i], kevp[i], data); 645 PTRIN_CP(ks32[i], kevp[i], udata); 646 } 647 done: 648 return (error); 649 } 650 651 int 652 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 653 { 654 struct timespec32 ts32; 655 struct timespec ts, *tsp; 656 struct kevent_copyops k_ops = { 657 .arg = uap, 658 .k_copyout = freebsd32_kevent_copyout, 659 .k_copyin = freebsd32_kevent_copyin, 660 }; 661 int error; 662 663 664 if (uap->timeout) { 665 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 666 if (error) 667 return (error); 668 CP(ts32, ts, tv_sec); 669 CP(ts32, ts, tv_nsec); 670 tsp = &ts; 671 } else 672 tsp = NULL; 673 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 674 &k_ops, tsp); 675 return (error); 676 } 677 678 int 679 freebsd32_gettimeofday(struct thread *td, 680 struct freebsd32_gettimeofday_args *uap) 681 { 682 struct timeval atv; 683 struct timeval32 atv32; 684 struct timezone rtz; 685 int error = 0; 686 687 if (uap->tp) { 688 microtime(&atv); 689 CP(atv, atv32, tv_sec); 690 CP(atv, atv32, tv_usec); 691 error = copyout(&atv32, uap->tp, sizeof (atv32)); 692 } 693 if (error == 0 && uap->tzp != NULL) { 694 rtz.tz_minuteswest = tz_minuteswest; 695 rtz.tz_dsttime = tz_dsttime; 696 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 697 } 698 return (error); 699 } 700 701 int 702 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 703 { 704 struct rusage32 s32; 705 struct rusage s; 706 int error; 707 708 error = kern_getrusage(td, uap->who, &s); 709 if (error) 710 return (error); 711 if (uap->rusage != NULL) { 712 freebsd32_rusage_out(&s, &s32); 713 error = copyout(&s32, uap->rusage, sizeof(s32)); 714 } 715 return (error); 716 } 717 718 static int 719 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 720 { 721 struct iovec32 iov32; 722 struct iovec *iov; 723 struct uio *uio; 724 u_int iovlen; 725 int error, i; 726 727 *uiop = NULL; 728 if (iovcnt > UIO_MAXIOV) 729 return (EINVAL); 730 iovlen = iovcnt * sizeof(struct iovec); 731 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 732 iov = (struct iovec *)(uio + 1); 733 for (i = 0; i < iovcnt; i++) { 734 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 735 if (error) { 736 free(uio, M_IOV); 737 return (error); 738 } 739 iov[i].iov_base = PTRIN(iov32.iov_base); 740 iov[i].iov_len = iov32.iov_len; 741 } 742 uio->uio_iov = iov; 743 uio->uio_iovcnt = iovcnt; 744 uio->uio_segflg = UIO_USERSPACE; 745 uio->uio_offset = -1; 746 uio->uio_resid = 0; 747 for (i = 0; i < iovcnt; i++) { 748 if (iov->iov_len > INT_MAX - uio->uio_resid) { 749 free(uio, M_IOV); 750 return (EINVAL); 751 } 752 uio->uio_resid += iov->iov_len; 753 iov++; 754 } 755 *uiop = uio; 756 return (0); 757 } 758 759 int 760 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 761 { 762 struct uio *auio; 763 int error; 764 765 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 766 if (error) 767 return (error); 768 error = kern_readv(td, uap->fd, auio); 769 free(auio, M_IOV); 770 return (error); 771 } 772 773 int 774 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 775 { 776 struct uio *auio; 777 int error; 778 779 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 780 if (error) 781 return (error); 782 error = kern_writev(td, uap->fd, auio); 783 free(auio, M_IOV); 784 return (error); 785 } 786 787 int 788 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 789 { 790 struct uio *auio; 791 int error; 792 793 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 794 if (error) 795 return (error); 796 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 797 free(auio, M_IOV); 798 return (error); 799 } 800 801 int 802 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 803 { 804 struct uio *auio; 805 int error; 806 807 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 808 if (error) 809 return (error); 810 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 811 free(auio, M_IOV); 812 return (error); 813 } 814 815 int 816 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 817 int error) 818 { 819 struct iovec32 iov32; 820 struct iovec *iov; 821 u_int iovlen; 822 int i; 823 824 *iovp = NULL; 825 if (iovcnt > UIO_MAXIOV) 826 return (error); 827 iovlen = iovcnt * sizeof(struct iovec); 828 iov = malloc(iovlen, M_IOV, M_WAITOK); 829 for (i = 0; i < iovcnt; i++) { 830 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 831 if (error) { 832 free(iov, M_IOV); 833 return (error); 834 } 835 iov[i].iov_base = PTRIN(iov32.iov_base); 836 iov[i].iov_len = iov32.iov_len; 837 } 838 *iovp = iov; 839 return (0); 840 } 841 842 static int 843 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 844 { 845 struct msghdr32 m32; 846 int error; 847 848 error = copyin(msg32, &m32, sizeof(m32)); 849 if (error) 850 return (error); 851 msg->msg_name = PTRIN(m32.msg_name); 852 msg->msg_namelen = m32.msg_namelen; 853 msg->msg_iov = PTRIN(m32.msg_iov); 854 msg->msg_iovlen = m32.msg_iovlen; 855 msg->msg_control = PTRIN(m32.msg_control); 856 msg->msg_controllen = m32.msg_controllen; 857 msg->msg_flags = m32.msg_flags; 858 return (0); 859 } 860 861 static int 862 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 863 { 864 struct msghdr32 m32; 865 int error; 866 867 m32.msg_name = PTROUT(msg->msg_name); 868 m32.msg_namelen = msg->msg_namelen; 869 m32.msg_iov = PTROUT(msg->msg_iov); 870 m32.msg_iovlen = msg->msg_iovlen; 871 m32.msg_control = PTROUT(msg->msg_control); 872 m32.msg_controllen = msg->msg_controllen; 873 m32.msg_flags = msg->msg_flags; 874 error = copyout(&m32, msg32, sizeof(m32)); 875 return (error); 876 } 877 878 #ifndef __mips__ 879 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 880 #else 881 #define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 882 #endif 883 #define FREEBSD32_ALIGN(p) \ 884 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 885 #define FREEBSD32_CMSG_SPACE(l) \ 886 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 887 888 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 889 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 890 static int 891 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 892 { 893 struct cmsghdr *cm; 894 void *data; 895 socklen_t clen, datalen; 896 int error; 897 caddr_t ctlbuf; 898 int len, maxlen, copylen; 899 struct mbuf *m; 900 error = 0; 901 902 len = msg->msg_controllen; 903 maxlen = msg->msg_controllen; 904 msg->msg_controllen = 0; 905 906 m = control; 907 ctlbuf = msg->msg_control; 908 909 while (m && len > 0) { 910 cm = mtod(m, struct cmsghdr *); 911 clen = m->m_len; 912 913 while (cm != NULL) { 914 915 if (sizeof(struct cmsghdr) > clen || 916 cm->cmsg_len > clen) { 917 error = EINVAL; 918 break; 919 } 920 921 data = CMSG_DATA(cm); 922 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 923 924 /* Adjust message length */ 925 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 926 datalen; 927 928 929 /* Copy cmsghdr */ 930 copylen = sizeof(struct cmsghdr); 931 if (len < copylen) { 932 msg->msg_flags |= MSG_CTRUNC; 933 copylen = len; 934 } 935 936 error = copyout(cm,ctlbuf,copylen); 937 if (error) 938 goto exit; 939 940 ctlbuf += FREEBSD32_ALIGN(copylen); 941 len -= FREEBSD32_ALIGN(copylen); 942 943 if (len <= 0) 944 break; 945 946 /* Copy data */ 947 copylen = datalen; 948 if (len < copylen) { 949 msg->msg_flags |= MSG_CTRUNC; 950 copylen = len; 951 } 952 953 error = copyout(data,ctlbuf,copylen); 954 if (error) 955 goto exit; 956 957 ctlbuf += FREEBSD32_ALIGN(copylen); 958 len -= FREEBSD32_ALIGN(copylen); 959 960 if (CMSG_SPACE(datalen) < clen) { 961 clen -= CMSG_SPACE(datalen); 962 cm = (struct cmsghdr *) 963 ((caddr_t)cm + CMSG_SPACE(datalen)); 964 } else { 965 clen = 0; 966 cm = NULL; 967 } 968 } 969 m = m->m_next; 970 } 971 972 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 973 974 exit: 975 return (error); 976 977 } 978 979 int 980 freebsd32_recvmsg(td, uap) 981 struct thread *td; 982 struct freebsd32_recvmsg_args /* { 983 int s; 984 struct msghdr32 *msg; 985 int flags; 986 } */ *uap; 987 { 988 struct msghdr msg; 989 struct msghdr32 m32; 990 struct iovec *uiov, *iov; 991 struct mbuf *control = NULL; 992 struct mbuf **controlp; 993 994 int error; 995 error = copyin(uap->msg, &m32, sizeof(m32)); 996 if (error) 997 return (error); 998 error = freebsd32_copyinmsghdr(uap->msg, &msg); 999 if (error) 1000 return (error); 1001 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1002 EMSGSIZE); 1003 if (error) 1004 return (error); 1005 msg.msg_flags = uap->flags; 1006 uiov = msg.msg_iov; 1007 msg.msg_iov = iov; 1008 1009 controlp = (msg.msg_control != NULL) ? &control : NULL; 1010 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1011 if (error == 0) { 1012 msg.msg_iov = uiov; 1013 1014 if (control != NULL) 1015 error = freebsd32_copy_msg_out(&msg, control); 1016 else 1017 msg.msg_controllen = 0; 1018 1019 if (error == 0) 1020 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1021 } 1022 free(iov, M_IOV); 1023 1024 if (control != NULL) 1025 m_freem(control); 1026 1027 return (error); 1028 } 1029 1030 /* 1031 * Copy-in the array of control messages constructed using alignment 1032 * and padding suitable for a 32-bit environment and construct an 1033 * mbuf using alignment and padding suitable for a 64-bit kernel. 1034 * The alignment and padding are defined indirectly by CMSG_DATA(), 1035 * CMSG_SPACE() and CMSG_LEN(). 1036 */ 1037 static int 1038 freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1039 { 1040 struct mbuf *m; 1041 void *md; 1042 u_int idx, len, msglen; 1043 int error; 1044 1045 buflen = FREEBSD32_ALIGN(buflen); 1046 1047 if (buflen > MCLBYTES) 1048 return (EINVAL); 1049 1050 /* 1051 * Iterate over the buffer and get the length of each message 1052 * in there. This has 32-bit alignment and padding. Use it to 1053 * determine the length of these messages when using 64-bit 1054 * alignment and padding. 1055 */ 1056 idx = 0; 1057 len = 0; 1058 while (idx < buflen) { 1059 error = copyin(buf + idx, &msglen, sizeof(msglen)); 1060 if (error) 1061 return (error); 1062 if (msglen < sizeof(struct cmsghdr)) 1063 return (EINVAL); 1064 msglen = FREEBSD32_ALIGN(msglen); 1065 if (idx + msglen > buflen) 1066 return (EINVAL); 1067 idx += msglen; 1068 msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) - 1069 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1070 len += CMSG_ALIGN(msglen); 1071 } 1072 1073 if (len > MCLBYTES) 1074 return (EINVAL); 1075 1076 m = m_get(M_WAITOK, MT_CONTROL); 1077 if (len > MLEN) 1078 MCLGET(m, M_WAITOK); 1079 m->m_len = len; 1080 1081 md = mtod(m, void *); 1082 while (buflen > 0) { 1083 error = copyin(buf, md, sizeof(struct cmsghdr)); 1084 if (error) 1085 break; 1086 msglen = *(u_int *)md; 1087 msglen = FREEBSD32_ALIGN(msglen); 1088 1089 /* Modify the message length to account for alignment. */ 1090 *(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) - 1091 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1092 1093 md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr)); 1094 buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1095 buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1096 1097 msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1098 if (msglen > 0) { 1099 error = copyin(buf, md, msglen); 1100 if (error) 1101 break; 1102 md = (char *)md + CMSG_ALIGN(msglen); 1103 buf += msglen; 1104 buflen -= msglen; 1105 } 1106 } 1107 1108 if (error) 1109 m_free(m); 1110 else 1111 *mp = m; 1112 return (error); 1113 } 1114 1115 int 1116 freebsd32_sendmsg(struct thread *td, 1117 struct freebsd32_sendmsg_args *uap) 1118 { 1119 struct msghdr msg; 1120 struct msghdr32 m32; 1121 struct iovec *iov; 1122 struct mbuf *control = NULL; 1123 struct sockaddr *to = NULL; 1124 int error; 1125 1126 error = copyin(uap->msg, &m32, sizeof(m32)); 1127 if (error) 1128 return (error); 1129 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1130 if (error) 1131 return (error); 1132 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1133 EMSGSIZE); 1134 if (error) 1135 return (error); 1136 msg.msg_iov = iov; 1137 if (msg.msg_name != NULL) { 1138 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1139 if (error) { 1140 to = NULL; 1141 goto out; 1142 } 1143 msg.msg_name = to; 1144 } 1145 1146 if (msg.msg_control) { 1147 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1148 error = EINVAL; 1149 goto out; 1150 } 1151 1152 error = freebsd32_copyin_control(&control, msg.msg_control, 1153 msg.msg_controllen); 1154 if (error) 1155 goto out; 1156 1157 msg.msg_control = NULL; 1158 msg.msg_controllen = 0; 1159 } 1160 1161 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1162 UIO_USERSPACE); 1163 1164 out: 1165 free(iov, M_IOV); 1166 if (to) 1167 free(to, M_SONAME); 1168 return (error); 1169 } 1170 1171 int 1172 freebsd32_recvfrom(struct thread *td, 1173 struct freebsd32_recvfrom_args *uap) 1174 { 1175 struct msghdr msg; 1176 struct iovec aiov; 1177 int error; 1178 1179 if (uap->fromlenaddr) { 1180 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1181 sizeof(msg.msg_namelen)); 1182 if (error) 1183 return (error); 1184 } else { 1185 msg.msg_namelen = 0; 1186 } 1187 1188 msg.msg_name = PTRIN(uap->from); 1189 msg.msg_iov = &aiov; 1190 msg.msg_iovlen = 1; 1191 aiov.iov_base = PTRIN(uap->buf); 1192 aiov.iov_len = uap->len; 1193 msg.msg_control = NULL; 1194 msg.msg_flags = uap->flags; 1195 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1196 if (error == 0 && uap->fromlenaddr) 1197 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1198 sizeof (msg.msg_namelen)); 1199 return (error); 1200 } 1201 1202 int 1203 freebsd32_settimeofday(struct thread *td, 1204 struct freebsd32_settimeofday_args *uap) 1205 { 1206 struct timeval32 tv32; 1207 struct timeval tv, *tvp; 1208 struct timezone tz, *tzp; 1209 int error; 1210 1211 if (uap->tv) { 1212 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1213 if (error) 1214 return (error); 1215 CP(tv32, tv, tv_sec); 1216 CP(tv32, tv, tv_usec); 1217 tvp = &tv; 1218 } else 1219 tvp = NULL; 1220 if (uap->tzp) { 1221 error = copyin(uap->tzp, &tz, sizeof(tz)); 1222 if (error) 1223 return (error); 1224 tzp = &tz; 1225 } else 1226 tzp = NULL; 1227 return (kern_settimeofday(td, tvp, tzp)); 1228 } 1229 1230 int 1231 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1232 { 1233 struct timeval32 s32[2]; 1234 struct timeval s[2], *sp; 1235 int error; 1236 1237 if (uap->tptr != NULL) { 1238 error = copyin(uap->tptr, s32, sizeof(s32)); 1239 if (error) 1240 return (error); 1241 CP(s32[0], s[0], tv_sec); 1242 CP(s32[0], s[0], tv_usec); 1243 CP(s32[1], s[1], tv_sec); 1244 CP(s32[1], s[1], tv_usec); 1245 sp = s; 1246 } else 1247 sp = NULL; 1248 return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE, 1249 sp, UIO_SYSSPACE)); 1250 } 1251 1252 int 1253 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1254 { 1255 struct timeval32 s32[2]; 1256 struct timeval s[2], *sp; 1257 int error; 1258 1259 if (uap->tptr != NULL) { 1260 error = copyin(uap->tptr, s32, sizeof(s32)); 1261 if (error) 1262 return (error); 1263 CP(s32[0], s[0], tv_sec); 1264 CP(s32[0], s[0], tv_usec); 1265 CP(s32[1], s[1], tv_sec); 1266 CP(s32[1], s[1], tv_usec); 1267 sp = s; 1268 } else 1269 sp = NULL; 1270 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1271 } 1272 1273 int 1274 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1275 { 1276 struct timeval32 s32[2]; 1277 struct timeval s[2], *sp; 1278 int error; 1279 1280 if (uap->tptr != NULL) { 1281 error = copyin(uap->tptr, s32, sizeof(s32)); 1282 if (error) 1283 return (error); 1284 CP(s32[0], s[0], tv_sec); 1285 CP(s32[0], s[0], tv_usec); 1286 CP(s32[1], s[1], tv_sec); 1287 CP(s32[1], s[1], tv_usec); 1288 sp = s; 1289 } else 1290 sp = NULL; 1291 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1292 } 1293 1294 int 1295 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1296 { 1297 struct timeval32 s32[2]; 1298 struct timeval s[2], *sp; 1299 int error; 1300 1301 if (uap->times != NULL) { 1302 error = copyin(uap->times, s32, sizeof(s32)); 1303 if (error) 1304 return (error); 1305 CP(s32[0], s[0], tv_sec); 1306 CP(s32[0], s[0], tv_usec); 1307 CP(s32[1], s[1], tv_sec); 1308 CP(s32[1], s[1], tv_usec); 1309 sp = s; 1310 } else 1311 sp = NULL; 1312 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1313 sp, UIO_SYSSPACE)); 1314 } 1315 1316 int 1317 freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap) 1318 { 1319 struct timespec32 ts32[2]; 1320 struct timespec ts[2], *tsp; 1321 int error; 1322 1323 if (uap->times != NULL) { 1324 error = copyin(uap->times, ts32, sizeof(ts32)); 1325 if (error) 1326 return (error); 1327 CP(ts32[0], ts[0], tv_sec); 1328 CP(ts32[0], ts[0], tv_nsec); 1329 CP(ts32[1], ts[1], tv_sec); 1330 CP(ts32[1], ts[1], tv_nsec); 1331 tsp = ts; 1332 } else 1333 tsp = NULL; 1334 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE)); 1335 } 1336 1337 int 1338 freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap) 1339 { 1340 struct timespec32 ts32[2]; 1341 struct timespec ts[2], *tsp; 1342 int error; 1343 1344 if (uap->times != NULL) { 1345 error = copyin(uap->times, ts32, sizeof(ts32)); 1346 if (error) 1347 return (error); 1348 CP(ts32[0], ts[0], tv_sec); 1349 CP(ts32[0], ts[0], tv_nsec); 1350 CP(ts32[1], ts[1], tv_sec); 1351 CP(ts32[1], ts[1], tv_nsec); 1352 tsp = ts; 1353 } else 1354 tsp = NULL; 1355 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE, 1356 tsp, UIO_SYSSPACE, uap->flag)); 1357 } 1358 1359 int 1360 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1361 { 1362 struct timeval32 tv32; 1363 struct timeval delta, olddelta, *deltap; 1364 int error; 1365 1366 if (uap->delta) { 1367 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1368 if (error) 1369 return (error); 1370 CP(tv32, delta, tv_sec); 1371 CP(tv32, delta, tv_usec); 1372 deltap = δ 1373 } else 1374 deltap = NULL; 1375 error = kern_adjtime(td, deltap, &olddelta); 1376 if (uap->olddelta && error == 0) { 1377 CP(olddelta, tv32, tv_sec); 1378 CP(olddelta, tv32, tv_usec); 1379 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1380 } 1381 return (error); 1382 } 1383 1384 #ifdef COMPAT_FREEBSD4 1385 int 1386 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1387 { 1388 struct statfs32 s32; 1389 struct statfs *sp; 1390 int error; 1391 1392 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1393 error = kern_statfs(td, uap->path, UIO_USERSPACE, sp); 1394 if (error == 0) { 1395 copy_statfs(sp, &s32); 1396 error = copyout(&s32, uap->buf, sizeof(s32)); 1397 } 1398 free(sp, M_STATFS); 1399 return (error); 1400 } 1401 #endif 1402 1403 #ifdef COMPAT_FREEBSD4 1404 int 1405 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1406 { 1407 struct statfs32 s32; 1408 struct statfs *sp; 1409 int error; 1410 1411 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1412 error = kern_fstatfs(td, uap->fd, sp); 1413 if (error == 0) { 1414 copy_statfs(sp, &s32); 1415 error = copyout(&s32, uap->buf, sizeof(s32)); 1416 } 1417 free(sp, M_STATFS); 1418 return (error); 1419 } 1420 #endif 1421 1422 #ifdef COMPAT_FREEBSD4 1423 int 1424 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1425 { 1426 struct statfs32 s32; 1427 struct statfs *sp; 1428 fhandle_t fh; 1429 int error; 1430 1431 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1432 return (error); 1433 sp = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1434 error = kern_fhstatfs(td, fh, sp); 1435 if (error == 0) { 1436 copy_statfs(sp, &s32); 1437 error = copyout(&s32, uap->buf, sizeof(s32)); 1438 } 1439 free(sp, M_STATFS); 1440 return (error); 1441 } 1442 #endif 1443 1444 int 1445 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1446 { 1447 1448 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte, 1449 PAIR32TO64(off_t, uap->offset))); 1450 } 1451 1452 int 1453 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1454 { 1455 1456 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte, 1457 PAIR32TO64(off_t, uap->offset))); 1458 } 1459 1460 #ifdef COMPAT_43 1461 int 1462 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1463 { 1464 1465 return (kern_lseek(td, uap->fd, uap->offset, uap->whence)); 1466 } 1467 #endif 1468 1469 int 1470 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1471 { 1472 int error; 1473 off_t pos; 1474 1475 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset), 1476 uap->whence); 1477 /* Expand the quad return into two parts for eax and edx */ 1478 pos = td->td_uretoff.tdu_off; 1479 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1480 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1481 return error; 1482 } 1483 1484 int 1485 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1486 { 1487 1488 return (kern_truncate(td, uap->path, UIO_USERSPACE, 1489 PAIR32TO64(off_t, uap->length))); 1490 } 1491 1492 int 1493 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1494 { 1495 1496 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length))); 1497 } 1498 1499 #ifdef COMPAT_43 1500 int 1501 ofreebsd32_getdirentries(struct thread *td, 1502 struct ofreebsd32_getdirentries_args *uap) 1503 { 1504 struct ogetdirentries_args ap; 1505 int error; 1506 long loff; 1507 int32_t loff_cut; 1508 1509 ap.fd = uap->fd; 1510 ap.buf = uap->buf; 1511 ap.count = uap->count; 1512 ap.basep = NULL; 1513 error = kern_ogetdirentries(td, &ap, &loff); 1514 if (error == 0) { 1515 loff_cut = loff; 1516 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1517 } 1518 return (error); 1519 } 1520 #endif 1521 1522 int 1523 freebsd32_getdirentries(struct thread *td, 1524 struct freebsd32_getdirentries_args *uap) 1525 { 1526 long base; 1527 int32_t base32; 1528 int error; 1529 1530 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1531 NULL, UIO_USERSPACE); 1532 if (error) 1533 return (error); 1534 if (uap->basep != NULL) { 1535 base32 = base; 1536 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1537 } 1538 return (error); 1539 } 1540 1541 #ifdef COMPAT_FREEBSD6 1542 /* versions with the 'int pad' argument */ 1543 int 1544 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1545 { 1546 1547 return (kern_pread(td, uap->fd, uap->buf, uap->nbyte, 1548 PAIR32TO64(off_t, uap->offset))); 1549 } 1550 1551 int 1552 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1553 { 1554 1555 return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte, 1556 PAIR32TO64(off_t, uap->offset))); 1557 } 1558 1559 int 1560 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1561 { 1562 int error; 1563 off_t pos; 1564 1565 error = kern_lseek(td, uap->fd, PAIR32TO64(off_t, uap->offset), 1566 uap->whence); 1567 /* Expand the quad return into two parts for eax and edx */ 1568 pos = *(off_t *)(td->td_retval); 1569 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1570 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1571 return error; 1572 } 1573 1574 int 1575 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1576 { 1577 1578 return (kern_truncate(td, uap->path, UIO_USERSPACE, 1579 PAIR32TO64(off_t, uap->length))); 1580 } 1581 1582 int 1583 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1584 { 1585 1586 return (kern_ftruncate(td, uap->fd, PAIR32TO64(off_t, uap->length))); 1587 } 1588 #endif /* COMPAT_FREEBSD6 */ 1589 1590 struct sf_hdtr32 { 1591 uint32_t headers; 1592 int hdr_cnt; 1593 uint32_t trailers; 1594 int trl_cnt; 1595 }; 1596 1597 static int 1598 freebsd32_do_sendfile(struct thread *td, 1599 struct freebsd32_sendfile_args *uap, int compat) 1600 { 1601 struct sf_hdtr32 hdtr32; 1602 struct sf_hdtr hdtr; 1603 struct uio *hdr_uio, *trl_uio; 1604 struct file *fp; 1605 cap_rights_t rights; 1606 struct iovec32 *iov32; 1607 off_t offset, sbytes; 1608 int error; 1609 1610 offset = PAIR32TO64(off_t, uap->offset); 1611 if (offset < 0) 1612 return (EINVAL); 1613 1614 hdr_uio = trl_uio = NULL; 1615 1616 if (uap->hdtr != NULL) { 1617 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1618 if (error) 1619 goto out; 1620 PTRIN_CP(hdtr32, hdtr, headers); 1621 CP(hdtr32, hdtr, hdr_cnt); 1622 PTRIN_CP(hdtr32, hdtr, trailers); 1623 CP(hdtr32, hdtr, trl_cnt); 1624 1625 if (hdtr.headers != NULL) { 1626 iov32 = PTRIN(hdtr32.headers); 1627 error = freebsd32_copyinuio(iov32, 1628 hdtr32.hdr_cnt, &hdr_uio); 1629 if (error) 1630 goto out; 1631 #ifdef COMPAT_FREEBSD4 1632 /* 1633 * In FreeBSD < 5.0 the nbytes to send also included 1634 * the header. If compat is specified subtract the 1635 * header size from nbytes. 1636 */ 1637 if (compat) { 1638 if (uap->nbytes > hdr_uio->uio_resid) 1639 uap->nbytes -= hdr_uio->uio_resid; 1640 else 1641 uap->nbytes = 0; 1642 } 1643 #endif 1644 } 1645 if (hdtr.trailers != NULL) { 1646 iov32 = PTRIN(hdtr32.trailers); 1647 error = freebsd32_copyinuio(iov32, 1648 hdtr32.trl_cnt, &trl_uio); 1649 if (error) 1650 goto out; 1651 } 1652 } 1653 1654 AUDIT_ARG_FD(uap->fd); 1655 1656 if ((error = fget_read(td, uap->fd, 1657 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) 1658 goto out; 1659 1660 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1661 uap->nbytes, &sbytes, uap->flags, td); 1662 fdrop(fp, td); 1663 1664 if (uap->sbytes != NULL) 1665 copyout(&sbytes, uap->sbytes, sizeof(off_t)); 1666 1667 out: 1668 if (hdr_uio) 1669 free(hdr_uio, M_IOV); 1670 if (trl_uio) 1671 free(trl_uio, M_IOV); 1672 return (error); 1673 } 1674 1675 #ifdef COMPAT_FREEBSD4 1676 int 1677 freebsd4_freebsd32_sendfile(struct thread *td, 1678 struct freebsd4_freebsd32_sendfile_args *uap) 1679 { 1680 return (freebsd32_do_sendfile(td, 1681 (struct freebsd32_sendfile_args *)uap, 1)); 1682 } 1683 #endif 1684 1685 int 1686 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1687 { 1688 1689 return (freebsd32_do_sendfile(td, uap, 0)); 1690 } 1691 1692 static void 1693 copy_stat(struct stat *in, struct stat32 *out) 1694 { 1695 1696 CP(*in, *out, st_dev); 1697 CP(*in, *out, st_ino); 1698 CP(*in, *out, st_mode); 1699 CP(*in, *out, st_nlink); 1700 CP(*in, *out, st_uid); 1701 CP(*in, *out, st_gid); 1702 CP(*in, *out, st_rdev); 1703 TS_CP(*in, *out, st_atim); 1704 TS_CP(*in, *out, st_mtim); 1705 TS_CP(*in, *out, st_ctim); 1706 CP(*in, *out, st_size); 1707 CP(*in, *out, st_blocks); 1708 CP(*in, *out, st_blksize); 1709 CP(*in, *out, st_flags); 1710 CP(*in, *out, st_gen); 1711 TS_CP(*in, *out, st_birthtim); 1712 } 1713 1714 #ifdef COMPAT_43 1715 static void 1716 copy_ostat(struct stat *in, struct ostat32 *out) 1717 { 1718 1719 CP(*in, *out, st_dev); 1720 CP(*in, *out, st_ino); 1721 CP(*in, *out, st_mode); 1722 CP(*in, *out, st_nlink); 1723 CP(*in, *out, st_uid); 1724 CP(*in, *out, st_gid); 1725 CP(*in, *out, st_rdev); 1726 CP(*in, *out, st_size); 1727 TS_CP(*in, *out, st_atim); 1728 TS_CP(*in, *out, st_mtim); 1729 TS_CP(*in, *out, st_ctim); 1730 CP(*in, *out, st_blksize); 1731 CP(*in, *out, st_blocks); 1732 CP(*in, *out, st_flags); 1733 CP(*in, *out, st_gen); 1734 } 1735 #endif 1736 1737 int 1738 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1739 { 1740 struct stat sb; 1741 struct stat32 sb32; 1742 int error; 1743 1744 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1745 &sb, NULL); 1746 if (error) 1747 return (error); 1748 copy_stat(&sb, &sb32); 1749 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1750 return (error); 1751 } 1752 1753 #ifdef COMPAT_43 1754 int 1755 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1756 { 1757 struct stat sb; 1758 struct ostat32 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_ostat(&sb, &sb32); 1766 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1767 return (error); 1768 } 1769 #endif 1770 1771 int 1772 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1773 { 1774 struct stat ub; 1775 struct stat32 ub32; 1776 int error; 1777 1778 error = kern_fstat(td, uap->fd, &ub); 1779 if (error) 1780 return (error); 1781 copy_stat(&ub, &ub32); 1782 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1783 return (error); 1784 } 1785 1786 #ifdef COMPAT_43 1787 int 1788 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1789 { 1790 struct stat ub; 1791 struct ostat32 ub32; 1792 int error; 1793 1794 error = kern_fstat(td, uap->fd, &ub); 1795 if (error) 1796 return (error); 1797 copy_ostat(&ub, &ub32); 1798 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1799 return (error); 1800 } 1801 #endif 1802 1803 int 1804 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1805 { 1806 struct stat ub; 1807 struct stat32 ub32; 1808 int error; 1809 1810 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, 1811 &ub, NULL); 1812 if (error) 1813 return (error); 1814 copy_stat(&ub, &ub32); 1815 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1816 return (error); 1817 } 1818 1819 int 1820 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1821 { 1822 struct stat sb; 1823 struct stat32 sb32; 1824 int error; 1825 1826 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1827 UIO_USERSPACE, &sb, NULL); 1828 if (error) 1829 return (error); 1830 copy_stat(&sb, &sb32); 1831 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1832 return (error); 1833 } 1834 1835 #ifdef COMPAT_43 1836 int 1837 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1838 { 1839 struct stat sb; 1840 struct ostat32 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_ostat(&sb, &sb32); 1848 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1849 return (error); 1850 } 1851 #endif 1852 1853 int 1854 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1855 { 1856 int error, name[CTL_MAXNAME]; 1857 size_t j, oldlen; 1858 uint32_t tmp; 1859 1860 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1861 return (EINVAL); 1862 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1863 if (error) 1864 return (error); 1865 if (uap->oldlenp) { 1866 error = fueword32(uap->oldlenp, &tmp); 1867 oldlen = tmp; 1868 } else { 1869 oldlen = 0; 1870 } 1871 if (error != 0) 1872 return (EFAULT); 1873 error = userland_sysctl(td, name, uap->namelen, 1874 uap->old, &oldlen, 1, 1875 uap->new, uap->newlen, &j, SCTL_MASK32); 1876 if (error && error != ENOMEM) 1877 return (error); 1878 if (uap->oldlenp) 1879 suword32(uap->oldlenp, j); 1880 return (0); 1881 } 1882 1883 int 1884 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1885 { 1886 uint32_t version; 1887 int error; 1888 struct jail j; 1889 1890 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1891 if (error) 1892 return (error); 1893 1894 switch (version) { 1895 case 0: 1896 { 1897 /* FreeBSD single IPv4 jails. */ 1898 struct jail32_v0 j32_v0; 1899 1900 bzero(&j, sizeof(struct jail)); 1901 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1902 if (error) 1903 return (error); 1904 CP(j32_v0, j, version); 1905 PTRIN_CP(j32_v0, j, path); 1906 PTRIN_CP(j32_v0, j, hostname); 1907 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1908 break; 1909 } 1910 1911 case 1: 1912 /* 1913 * Version 1 was used by multi-IPv4 jail implementations 1914 * that never made it into the official kernel. 1915 */ 1916 return (EINVAL); 1917 1918 case 2: /* JAIL_API_VERSION */ 1919 { 1920 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1921 struct jail32 j32; 1922 1923 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1924 if (error) 1925 return (error); 1926 CP(j32, j, version); 1927 PTRIN_CP(j32, j, path); 1928 PTRIN_CP(j32, j, hostname); 1929 PTRIN_CP(j32, j, jailname); 1930 CP(j32, j, ip4s); 1931 CP(j32, j, ip6s); 1932 PTRIN_CP(j32, j, ip4); 1933 PTRIN_CP(j32, j, ip6); 1934 break; 1935 } 1936 1937 default: 1938 /* Sci-Fi jails are not supported, sorry. */ 1939 return (EINVAL); 1940 } 1941 return (kern_jail(td, &j)); 1942 } 1943 1944 int 1945 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1946 { 1947 struct uio *auio; 1948 int error; 1949 1950 /* Check that we have an even number of iovecs. */ 1951 if (uap->iovcnt & 1) 1952 return (EINVAL); 1953 1954 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1955 if (error) 1956 return (error); 1957 error = kern_jail_set(td, auio, uap->flags); 1958 free(auio, M_IOV); 1959 return (error); 1960 } 1961 1962 int 1963 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1964 { 1965 struct iovec32 iov32; 1966 struct uio *auio; 1967 int error, i; 1968 1969 /* Check that we have an even number of iovecs. */ 1970 if (uap->iovcnt & 1) 1971 return (EINVAL); 1972 1973 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1974 if (error) 1975 return (error); 1976 error = kern_jail_get(td, auio, uap->flags); 1977 if (error == 0) 1978 for (i = 0; i < uap->iovcnt; i++) { 1979 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 1980 CP(auio->uio_iov[i], iov32, iov_len); 1981 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 1982 if (error != 0) 1983 break; 1984 } 1985 free(auio, M_IOV); 1986 return (error); 1987 } 1988 1989 int 1990 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 1991 { 1992 struct sigaction32 s32; 1993 struct sigaction sa, osa, *sap; 1994 int error; 1995 1996 if (uap->act) { 1997 error = copyin(uap->act, &s32, sizeof(s32)); 1998 if (error) 1999 return (error); 2000 sa.sa_handler = PTRIN(s32.sa_u); 2001 CP(s32, sa, sa_flags); 2002 CP(s32, sa, sa_mask); 2003 sap = &sa; 2004 } else 2005 sap = NULL; 2006 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2007 if (error == 0 && uap->oact != NULL) { 2008 s32.sa_u = PTROUT(osa.sa_handler); 2009 CP(osa, s32, sa_flags); 2010 CP(osa, s32, sa_mask); 2011 error = copyout(&s32, uap->oact, sizeof(s32)); 2012 } 2013 return (error); 2014 } 2015 2016 #ifdef COMPAT_FREEBSD4 2017 int 2018 freebsd4_freebsd32_sigaction(struct thread *td, 2019 struct freebsd4_freebsd32_sigaction_args *uap) 2020 { 2021 struct sigaction32 s32; 2022 struct sigaction sa, osa, *sap; 2023 int error; 2024 2025 if (uap->act) { 2026 error = copyin(uap->act, &s32, sizeof(s32)); 2027 if (error) 2028 return (error); 2029 sa.sa_handler = PTRIN(s32.sa_u); 2030 CP(s32, sa, sa_flags); 2031 CP(s32, sa, sa_mask); 2032 sap = &sa; 2033 } else 2034 sap = NULL; 2035 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2036 if (error == 0 && uap->oact != NULL) { 2037 s32.sa_u = PTROUT(osa.sa_handler); 2038 CP(osa, s32, sa_flags); 2039 CP(osa, s32, sa_mask); 2040 error = copyout(&s32, uap->oact, sizeof(s32)); 2041 } 2042 return (error); 2043 } 2044 #endif 2045 2046 #ifdef COMPAT_43 2047 struct osigaction32 { 2048 u_int32_t sa_u; 2049 osigset_t sa_mask; 2050 int sa_flags; 2051 }; 2052 2053 #define ONSIG 32 2054 2055 int 2056 ofreebsd32_sigaction(struct thread *td, 2057 struct ofreebsd32_sigaction_args *uap) 2058 { 2059 struct osigaction32 s32; 2060 struct sigaction sa, osa, *sap; 2061 int error; 2062 2063 if (uap->signum <= 0 || uap->signum >= ONSIG) 2064 return (EINVAL); 2065 2066 if (uap->nsa) { 2067 error = copyin(uap->nsa, &s32, sizeof(s32)); 2068 if (error) 2069 return (error); 2070 sa.sa_handler = PTRIN(s32.sa_u); 2071 CP(s32, sa, sa_flags); 2072 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2073 sap = &sa; 2074 } else 2075 sap = NULL; 2076 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2077 if (error == 0 && uap->osa != NULL) { 2078 s32.sa_u = PTROUT(osa.sa_handler); 2079 CP(osa, s32, sa_flags); 2080 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2081 error = copyout(&s32, uap->osa, sizeof(s32)); 2082 } 2083 return (error); 2084 } 2085 2086 int 2087 ofreebsd32_sigprocmask(struct thread *td, 2088 struct ofreebsd32_sigprocmask_args *uap) 2089 { 2090 sigset_t set, oset; 2091 int error; 2092 2093 OSIG2SIG(uap->mask, set); 2094 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2095 SIG2OSIG(oset, td->td_retval[0]); 2096 return (error); 2097 } 2098 2099 int 2100 ofreebsd32_sigpending(struct thread *td, 2101 struct ofreebsd32_sigpending_args *uap) 2102 { 2103 struct proc *p = td->td_proc; 2104 sigset_t siglist; 2105 2106 PROC_LOCK(p); 2107 siglist = p->p_siglist; 2108 SIGSETOR(siglist, td->td_siglist); 2109 PROC_UNLOCK(p); 2110 SIG2OSIG(siglist, td->td_retval[0]); 2111 return (0); 2112 } 2113 2114 struct sigvec32 { 2115 u_int32_t sv_handler; 2116 int sv_mask; 2117 int sv_flags; 2118 }; 2119 2120 int 2121 ofreebsd32_sigvec(struct thread *td, 2122 struct ofreebsd32_sigvec_args *uap) 2123 { 2124 struct sigvec32 vec; 2125 struct sigaction sa, osa, *sap; 2126 int error; 2127 2128 if (uap->signum <= 0 || uap->signum >= ONSIG) 2129 return (EINVAL); 2130 2131 if (uap->nsv) { 2132 error = copyin(uap->nsv, &vec, sizeof(vec)); 2133 if (error) 2134 return (error); 2135 sa.sa_handler = PTRIN(vec.sv_handler); 2136 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2137 sa.sa_flags = vec.sv_flags; 2138 sa.sa_flags ^= SA_RESTART; 2139 sap = &sa; 2140 } else 2141 sap = NULL; 2142 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2143 if (error == 0 && uap->osv != NULL) { 2144 vec.sv_handler = PTROUT(osa.sa_handler); 2145 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2146 vec.sv_flags = osa.sa_flags; 2147 vec.sv_flags &= ~SA_NOCLDWAIT; 2148 vec.sv_flags ^= SA_RESTART; 2149 error = copyout(&vec, uap->osv, sizeof(vec)); 2150 } 2151 return (error); 2152 } 2153 2154 int 2155 ofreebsd32_sigblock(struct thread *td, 2156 struct ofreebsd32_sigblock_args *uap) 2157 { 2158 sigset_t set, oset; 2159 2160 OSIG2SIG(uap->mask, set); 2161 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2162 SIG2OSIG(oset, td->td_retval[0]); 2163 return (0); 2164 } 2165 2166 int 2167 ofreebsd32_sigsetmask(struct thread *td, 2168 struct ofreebsd32_sigsetmask_args *uap) 2169 { 2170 sigset_t set, oset; 2171 2172 OSIG2SIG(uap->mask, set); 2173 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2174 SIG2OSIG(oset, td->td_retval[0]); 2175 return (0); 2176 } 2177 2178 int 2179 ofreebsd32_sigsuspend(struct thread *td, 2180 struct ofreebsd32_sigsuspend_args *uap) 2181 { 2182 sigset_t mask; 2183 2184 OSIG2SIG(uap->mask, mask); 2185 return (kern_sigsuspend(td, mask)); 2186 } 2187 2188 struct sigstack32 { 2189 u_int32_t ss_sp; 2190 int ss_onstack; 2191 }; 2192 2193 int 2194 ofreebsd32_sigstack(struct thread *td, 2195 struct ofreebsd32_sigstack_args *uap) 2196 { 2197 struct sigstack32 s32; 2198 struct sigstack nss, oss; 2199 int error = 0, unss; 2200 2201 if (uap->nss != NULL) { 2202 error = copyin(uap->nss, &s32, sizeof(s32)); 2203 if (error) 2204 return (error); 2205 nss.ss_sp = PTRIN(s32.ss_sp); 2206 CP(s32, nss, ss_onstack); 2207 unss = 1; 2208 } else { 2209 unss = 0; 2210 } 2211 oss.ss_sp = td->td_sigstk.ss_sp; 2212 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2213 if (unss) { 2214 td->td_sigstk.ss_sp = nss.ss_sp; 2215 td->td_sigstk.ss_size = 0; 2216 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2217 td->td_pflags |= TDP_ALTSTACK; 2218 } 2219 if (uap->oss != NULL) { 2220 s32.ss_sp = PTROUT(oss.ss_sp); 2221 CP(oss, s32, ss_onstack); 2222 error = copyout(&s32, uap->oss, sizeof(s32)); 2223 } 2224 return (error); 2225 } 2226 #endif 2227 2228 int 2229 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2230 { 2231 2232 return (freebsd32_user_clock_nanosleep(td, CLOCK_REALTIME, 2233 TIMER_RELTIME, uap->rqtp, uap->rmtp)); 2234 } 2235 2236 int 2237 freebsd32_clock_nanosleep(struct thread *td, 2238 struct freebsd32_clock_nanosleep_args *uap) 2239 { 2240 int error; 2241 2242 error = freebsd32_user_clock_nanosleep(td, uap->clock_id, uap->flags, 2243 uap->rqtp, uap->rmtp); 2244 return (kern_posix_error(td, error)); 2245 } 2246 2247 static int 2248 freebsd32_user_clock_nanosleep(struct thread *td, clockid_t clock_id, 2249 int flags, const struct timespec32 *ua_rqtp, struct timespec32 *ua_rmtp) 2250 { 2251 struct timespec32 rmt32, rqt32; 2252 struct timespec rmt, rqt; 2253 int error; 2254 2255 error = copyin(ua_rqtp, &rqt32, sizeof(rqt32)); 2256 if (error) 2257 return (error); 2258 2259 CP(rqt32, rqt, tv_sec); 2260 CP(rqt32, rqt, tv_nsec); 2261 2262 if (ua_rmtp != NULL && (flags & TIMER_ABSTIME) == 0 && 2263 !useracc(ua_rmtp, sizeof(rmt32), VM_PROT_WRITE)) 2264 return (EFAULT); 2265 error = kern_clock_nanosleep(td, clock_id, flags, &rqt, &rmt); 2266 if (error == EINTR && ua_rmtp != NULL && (flags & TIMER_ABSTIME) == 0) { 2267 int error2; 2268 2269 CP(rmt, rmt32, tv_sec); 2270 CP(rmt, rmt32, tv_nsec); 2271 2272 error2 = copyout(&rmt32, ua_rmtp, sizeof(rmt32)); 2273 if (error2) 2274 error = error2; 2275 } 2276 return (error); 2277 } 2278 2279 int 2280 freebsd32_clock_gettime(struct thread *td, 2281 struct freebsd32_clock_gettime_args *uap) 2282 { 2283 struct timespec ats; 2284 struct timespec32 ats32; 2285 int error; 2286 2287 error = kern_clock_gettime(td, uap->clock_id, &ats); 2288 if (error == 0) { 2289 CP(ats, ats32, tv_sec); 2290 CP(ats, ats32, tv_nsec); 2291 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2292 } 2293 return (error); 2294 } 2295 2296 int 2297 freebsd32_clock_settime(struct thread *td, 2298 struct freebsd32_clock_settime_args *uap) 2299 { 2300 struct timespec ats; 2301 struct timespec32 ats32; 2302 int error; 2303 2304 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2305 if (error) 2306 return (error); 2307 CP(ats32, ats, tv_sec); 2308 CP(ats32, ats, tv_nsec); 2309 2310 return (kern_clock_settime(td, uap->clock_id, &ats)); 2311 } 2312 2313 int 2314 freebsd32_clock_getres(struct thread *td, 2315 struct freebsd32_clock_getres_args *uap) 2316 { 2317 struct timespec ts; 2318 struct timespec32 ts32; 2319 int error; 2320 2321 if (uap->tp == NULL) 2322 return (0); 2323 error = kern_clock_getres(td, uap->clock_id, &ts); 2324 if (error == 0) { 2325 CP(ts, ts32, tv_sec); 2326 CP(ts, ts32, tv_nsec); 2327 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2328 } 2329 return (error); 2330 } 2331 2332 int freebsd32_ktimer_create(struct thread *td, 2333 struct freebsd32_ktimer_create_args *uap) 2334 { 2335 struct sigevent32 ev32; 2336 struct sigevent ev, *evp; 2337 int error, id; 2338 2339 if (uap->evp == NULL) { 2340 evp = NULL; 2341 } else { 2342 evp = &ev; 2343 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2344 if (error != 0) 2345 return (error); 2346 error = convert_sigevent32(&ev32, &ev); 2347 if (error != 0) 2348 return (error); 2349 } 2350 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2351 if (error == 0) { 2352 error = copyout(&id, uap->timerid, sizeof(int)); 2353 if (error != 0) 2354 kern_ktimer_delete(td, id); 2355 } 2356 return (error); 2357 } 2358 2359 int 2360 freebsd32_ktimer_settime(struct thread *td, 2361 struct freebsd32_ktimer_settime_args *uap) 2362 { 2363 struct itimerspec32 val32, oval32; 2364 struct itimerspec val, oval, *ovalp; 2365 int error; 2366 2367 error = copyin(uap->value, &val32, sizeof(val32)); 2368 if (error != 0) 2369 return (error); 2370 ITS_CP(val32, val); 2371 ovalp = uap->ovalue != NULL ? &oval : NULL; 2372 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2373 if (error == 0 && uap->ovalue != NULL) { 2374 ITS_CP(oval, oval32); 2375 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2376 } 2377 return (error); 2378 } 2379 2380 int 2381 freebsd32_ktimer_gettime(struct thread *td, 2382 struct freebsd32_ktimer_gettime_args *uap) 2383 { 2384 struct itimerspec32 val32; 2385 struct itimerspec val; 2386 int error; 2387 2388 error = kern_ktimer_gettime(td, uap->timerid, &val); 2389 if (error == 0) { 2390 ITS_CP(val, val32); 2391 error = copyout(&val32, uap->value, sizeof(val32)); 2392 } 2393 return (error); 2394 } 2395 2396 int 2397 freebsd32_clock_getcpuclockid2(struct thread *td, 2398 struct freebsd32_clock_getcpuclockid2_args *uap) 2399 { 2400 clockid_t clk_id; 2401 int error; 2402 2403 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2404 uap->which, &clk_id); 2405 if (error == 0) 2406 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2407 return (error); 2408 } 2409 2410 int 2411 freebsd32_thr_new(struct thread *td, 2412 struct freebsd32_thr_new_args *uap) 2413 { 2414 struct thr_param32 param32; 2415 struct thr_param param; 2416 int error; 2417 2418 if (uap->param_size < 0 || 2419 uap->param_size > sizeof(struct thr_param32)) 2420 return (EINVAL); 2421 bzero(¶m, sizeof(struct thr_param)); 2422 bzero(¶m32, sizeof(struct thr_param32)); 2423 error = copyin(uap->param, ¶m32, uap->param_size); 2424 if (error != 0) 2425 return (error); 2426 param.start_func = PTRIN(param32.start_func); 2427 param.arg = PTRIN(param32.arg); 2428 param.stack_base = PTRIN(param32.stack_base); 2429 param.stack_size = param32.stack_size; 2430 param.tls_base = PTRIN(param32.tls_base); 2431 param.tls_size = param32.tls_size; 2432 param.child_tid = PTRIN(param32.child_tid); 2433 param.parent_tid = PTRIN(param32.parent_tid); 2434 param.flags = param32.flags; 2435 param.rtp = PTRIN(param32.rtp); 2436 param.spare[0] = PTRIN(param32.spare[0]); 2437 param.spare[1] = PTRIN(param32.spare[1]); 2438 param.spare[2] = PTRIN(param32.spare[2]); 2439 2440 return (kern_thr_new(td, ¶m)); 2441 } 2442 2443 int 2444 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2445 { 2446 struct timespec32 ts32; 2447 struct timespec ts, *tsp; 2448 int error; 2449 2450 error = 0; 2451 tsp = NULL; 2452 if (uap->timeout != NULL) { 2453 error = copyin((const void *)uap->timeout, (void *)&ts32, 2454 sizeof(struct timespec32)); 2455 if (error != 0) 2456 return (error); 2457 ts.tv_sec = ts32.tv_sec; 2458 ts.tv_nsec = ts32.tv_nsec; 2459 tsp = &ts; 2460 } 2461 return (kern_thr_suspend(td, tsp)); 2462 } 2463 2464 void 2465 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2466 { 2467 bzero(dst, sizeof(*dst)); 2468 dst->si_signo = src->si_signo; 2469 dst->si_errno = src->si_errno; 2470 dst->si_code = src->si_code; 2471 dst->si_pid = src->si_pid; 2472 dst->si_uid = src->si_uid; 2473 dst->si_status = src->si_status; 2474 dst->si_addr = (uintptr_t)src->si_addr; 2475 dst->si_value.sival_int = src->si_value.sival_int; 2476 dst->si_timerid = src->si_timerid; 2477 dst->si_overrun = src->si_overrun; 2478 } 2479 2480 #ifndef _FREEBSD32_SYSPROTO_H_ 2481 struct freebsd32_sigqueue_args { 2482 pid_t pid; 2483 int signum; 2484 /* union sigval32 */ int value; 2485 }; 2486 #endif 2487 int 2488 freebsd32_sigqueue(struct thread *td, struct freebsd32_sigqueue_args *uap) 2489 { 2490 union sigval sv; 2491 2492 /* 2493 * On 32-bit ABIs, sival_int and sival_ptr are the same. 2494 * On 64-bit little-endian ABIs, the low bits are the same. 2495 * In 64-bit big-endian ABIs, sival_int overlaps with 2496 * sival_ptr's HIGH bits. We choose to support sival_int 2497 * rather than sival_ptr in this case as it seems to be 2498 * more common. 2499 */ 2500 bzero(&sv, sizeof(sv)); 2501 sv.sival_int = uap->value; 2502 2503 return (kern_sigqueue(td, uap->pid, uap->signum, &sv)); 2504 } 2505 2506 int 2507 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2508 { 2509 struct timespec32 ts32; 2510 struct timespec ts; 2511 struct timespec *timeout; 2512 sigset_t set; 2513 ksiginfo_t ksi; 2514 struct siginfo32 si32; 2515 int error; 2516 2517 if (uap->timeout) { 2518 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2519 if (error) 2520 return (error); 2521 ts.tv_sec = ts32.tv_sec; 2522 ts.tv_nsec = ts32.tv_nsec; 2523 timeout = &ts; 2524 } else 2525 timeout = NULL; 2526 2527 error = copyin(uap->set, &set, sizeof(set)); 2528 if (error) 2529 return (error); 2530 2531 error = kern_sigtimedwait(td, set, &ksi, timeout); 2532 if (error) 2533 return (error); 2534 2535 if (uap->info) { 2536 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2537 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2538 } 2539 2540 if (error == 0) 2541 td->td_retval[0] = ksi.ksi_signo; 2542 return (error); 2543 } 2544 2545 /* 2546 * MPSAFE 2547 */ 2548 int 2549 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2550 { 2551 ksiginfo_t ksi; 2552 struct siginfo32 si32; 2553 sigset_t set; 2554 int error; 2555 2556 error = copyin(uap->set, &set, sizeof(set)); 2557 if (error) 2558 return (error); 2559 2560 error = kern_sigtimedwait(td, set, &ksi, NULL); 2561 if (error) 2562 return (error); 2563 2564 if (uap->info) { 2565 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2566 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2567 } 2568 if (error == 0) 2569 td->td_retval[0] = ksi.ksi_signo; 2570 return (error); 2571 } 2572 2573 int 2574 freebsd32_cpuset_setid(struct thread *td, 2575 struct freebsd32_cpuset_setid_args *uap) 2576 { 2577 2578 return (kern_cpuset_setid(td, uap->which, 2579 PAIR32TO64(id_t, uap->id), uap->setid)); 2580 } 2581 2582 int 2583 freebsd32_cpuset_getid(struct thread *td, 2584 struct freebsd32_cpuset_getid_args *uap) 2585 { 2586 2587 return (kern_cpuset_getid(td, uap->level, uap->which, 2588 PAIR32TO64(id_t, uap->id), uap->setid)); 2589 } 2590 2591 int 2592 freebsd32_cpuset_getaffinity(struct thread *td, 2593 struct freebsd32_cpuset_getaffinity_args *uap) 2594 { 2595 2596 return (kern_cpuset_getaffinity(td, uap->level, uap->which, 2597 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask)); 2598 } 2599 2600 int 2601 freebsd32_cpuset_setaffinity(struct thread *td, 2602 struct freebsd32_cpuset_setaffinity_args *uap) 2603 { 2604 2605 return (kern_cpuset_setaffinity(td, uap->level, uap->which, 2606 PAIR32TO64(id_t,uap->id), uap->cpusetsize, uap->mask)); 2607 } 2608 2609 int 2610 freebsd32_nmount(struct thread *td, 2611 struct freebsd32_nmount_args /* { 2612 struct iovec *iovp; 2613 unsigned int iovcnt; 2614 int flags; 2615 } */ *uap) 2616 { 2617 struct uio *auio; 2618 uint64_t flags; 2619 int error; 2620 2621 /* 2622 * Mount flags are now 64-bits. On 32-bit archtectures only 2623 * 32-bits are passed in, but from here on everything handles 2624 * 64-bit flags correctly. 2625 */ 2626 flags = uap->flags; 2627 2628 AUDIT_ARG_FFLAGS(flags); 2629 2630 /* 2631 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2632 * userspace to set this flag, but we must filter it out if we want 2633 * MNT_UPDATE on the root file system to work. 2634 * MNT_ROOTFS should only be set by the kernel when mounting its 2635 * root file system. 2636 */ 2637 flags &= ~MNT_ROOTFS; 2638 2639 /* 2640 * check that we have an even number of iovec's 2641 * and that we have at least two options. 2642 */ 2643 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2644 return (EINVAL); 2645 2646 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2647 if (error) 2648 return (error); 2649 error = vfs_donmount(td, flags, auio); 2650 2651 free(auio, M_IOV); 2652 return error; 2653 } 2654 2655 #if 0 2656 int 2657 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2658 { 2659 struct yyy32 *p32, s32; 2660 struct yyy *p = NULL, s; 2661 struct xxx_arg ap; 2662 int error; 2663 2664 if (uap->zzz) { 2665 error = copyin(uap->zzz, &s32, sizeof(s32)); 2666 if (error) 2667 return (error); 2668 /* translate in */ 2669 p = &s; 2670 } 2671 error = kern_xxx(td, p); 2672 if (error) 2673 return (error); 2674 if (uap->zzz) { 2675 /* translate out */ 2676 error = copyout(&s32, p32, sizeof(s32)); 2677 } 2678 return (error); 2679 } 2680 #endif 2681 2682 int 2683 syscall32_register(int *offset, struct sysent *new_sysent, 2684 struct sysent *old_sysent, int flags) 2685 { 2686 2687 if ((flags & ~SY_THR_STATIC) != 0) 2688 return (EINVAL); 2689 2690 if (*offset == NO_SYSCALL) { 2691 int i; 2692 2693 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2694 if (freebsd32_sysent[i].sy_call == 2695 (sy_call_t *)lkmnosys) 2696 break; 2697 if (i == SYS_MAXSYSCALL) 2698 return (ENFILE); 2699 *offset = i; 2700 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2701 return (EINVAL); 2702 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2703 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2704 return (EEXIST); 2705 2706 *old_sysent = freebsd32_sysent[*offset]; 2707 freebsd32_sysent[*offset] = *new_sysent; 2708 atomic_store_rel_32(&freebsd32_sysent[*offset].sy_thrcnt, flags); 2709 return (0); 2710 } 2711 2712 int 2713 syscall32_deregister(int *offset, struct sysent *old_sysent) 2714 { 2715 2716 if (*offset == 0) 2717 return (0); 2718 2719 freebsd32_sysent[*offset] = *old_sysent; 2720 return (0); 2721 } 2722 2723 int 2724 syscall32_module_handler(struct module *mod, int what, void *arg) 2725 { 2726 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2727 modspecific_t ms; 2728 int error; 2729 2730 switch (what) { 2731 case MOD_LOAD: 2732 error = syscall32_register(data->offset, data->new_sysent, 2733 &data->old_sysent, SY_THR_STATIC_KLD); 2734 if (error) { 2735 /* Leave a mark so we know to safely unload below. */ 2736 data->offset = NULL; 2737 return error; 2738 } 2739 ms.intval = *data->offset; 2740 MOD_XLOCK; 2741 module_setspecific(mod, &ms); 2742 MOD_XUNLOCK; 2743 if (data->chainevh) 2744 error = data->chainevh(mod, what, data->chainarg); 2745 return (error); 2746 case MOD_UNLOAD: 2747 /* 2748 * MOD_LOAD failed, so just return without calling the 2749 * chained handler since we didn't pass along the MOD_LOAD 2750 * event. 2751 */ 2752 if (data->offset == NULL) 2753 return (0); 2754 if (data->chainevh) { 2755 error = data->chainevh(mod, what, data->chainarg); 2756 if (error) 2757 return (error); 2758 } 2759 error = syscall32_deregister(data->offset, &data->old_sysent); 2760 return (error); 2761 default: 2762 error = EOPNOTSUPP; 2763 if (data->chainevh) 2764 error = data->chainevh(mod, what, data->chainarg); 2765 return (error); 2766 } 2767 } 2768 2769 int 2770 syscall32_helper_register(struct syscall_helper_data *sd, int flags) 2771 { 2772 struct syscall_helper_data *sd1; 2773 int error; 2774 2775 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2776 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2777 &sd1->old_sysent, flags); 2778 if (error != 0) { 2779 syscall32_helper_unregister(sd); 2780 return (error); 2781 } 2782 sd1->registered = 1; 2783 } 2784 return (0); 2785 } 2786 2787 int 2788 syscall32_helper_unregister(struct syscall_helper_data *sd) 2789 { 2790 struct syscall_helper_data *sd1; 2791 2792 for (sd1 = sd; sd1->registered != 0; sd1++) { 2793 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2794 sd1->registered = 0; 2795 } 2796 return (0); 2797 } 2798 2799 register_t * 2800 freebsd32_copyout_strings(struct image_params *imgp) 2801 { 2802 int argc, envc, i; 2803 u_int32_t *vectp; 2804 char *stringp; 2805 uintptr_t destp; 2806 u_int32_t *stack_base; 2807 struct freebsd32_ps_strings *arginfo; 2808 char canary[sizeof(long) * 8]; 2809 int32_t pagesizes32[MAXPAGESIZES]; 2810 size_t execpath_len; 2811 int szsigcode; 2812 2813 /* 2814 * Calculate string base and vector table pointers. 2815 * Also deal with signal trampoline code for this exec type. 2816 */ 2817 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2818 execpath_len = strlen(imgp->execpath) + 1; 2819 else 2820 execpath_len = 0; 2821 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2822 sv_psstrings; 2823 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2824 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2825 else 2826 szsigcode = 0; 2827 destp = (uintptr_t)arginfo; 2828 2829 /* 2830 * install sigcode 2831 */ 2832 if (szsigcode != 0) { 2833 destp -= szsigcode; 2834 destp = rounddown2(destp, sizeof(uint32_t)); 2835 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2836 szsigcode); 2837 } 2838 2839 /* 2840 * Copy the image path for the rtld. 2841 */ 2842 if (execpath_len != 0) { 2843 destp -= execpath_len; 2844 imgp->execpathp = destp; 2845 copyout(imgp->execpath, (void *)destp, execpath_len); 2846 } 2847 2848 /* 2849 * Prepare the canary for SSP. 2850 */ 2851 arc4rand(canary, sizeof(canary), 0); 2852 destp -= sizeof(canary); 2853 imgp->canary = destp; 2854 copyout(canary, (void *)destp, sizeof(canary)); 2855 imgp->canarylen = sizeof(canary); 2856 2857 /* 2858 * Prepare the pagesizes array. 2859 */ 2860 for (i = 0; i < MAXPAGESIZES; i++) 2861 pagesizes32[i] = (uint32_t)pagesizes[i]; 2862 destp -= sizeof(pagesizes32); 2863 destp = rounddown2(destp, sizeof(uint32_t)); 2864 imgp->pagesizes = destp; 2865 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2866 imgp->pagesizeslen = sizeof(pagesizes32); 2867 2868 destp -= ARG_MAX - imgp->args->stringspace; 2869 destp = rounddown2(destp, sizeof(uint32_t)); 2870 2871 /* 2872 * If we have a valid auxargs ptr, prepare some room 2873 * on the stack. 2874 */ 2875 if (imgp->auxargs) { 2876 /* 2877 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2878 * lower compatibility. 2879 */ 2880 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2881 : (AT_COUNT * 2); 2882 /* 2883 * The '+ 2' is for the null pointers at the end of each of 2884 * the arg and env vector sets,and imgp->auxarg_size is room 2885 * for argument of Runtime loader. 2886 */ 2887 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2888 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2889 sizeof(u_int32_t)); 2890 } else { 2891 /* 2892 * The '+ 2' is for the null pointers at the end of each of 2893 * the arg and env vector sets 2894 */ 2895 vectp = (u_int32_t *)(destp - (imgp->args->argc + 2896 imgp->args->envc + 2) * sizeof(u_int32_t)); 2897 } 2898 2899 /* 2900 * vectp also becomes our initial stack base 2901 */ 2902 stack_base = vectp; 2903 2904 stringp = imgp->args->begin_argv; 2905 argc = imgp->args->argc; 2906 envc = imgp->args->envc; 2907 /* 2908 * Copy out strings - arguments and environment. 2909 */ 2910 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2911 2912 /* 2913 * Fill in "ps_strings" struct for ps, w, etc. 2914 */ 2915 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2916 suword32(&arginfo->ps_nargvstr, argc); 2917 2918 /* 2919 * Fill in argument portion of vector table. 2920 */ 2921 for (; argc > 0; --argc) { 2922 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2923 while (*stringp++ != 0) 2924 destp++; 2925 destp++; 2926 } 2927 2928 /* a null vector table pointer separates the argp's from the envp's */ 2929 suword32(vectp++, 0); 2930 2931 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2932 suword32(&arginfo->ps_nenvstr, envc); 2933 2934 /* 2935 * Fill in environment portion of vector table. 2936 */ 2937 for (; envc > 0; --envc) { 2938 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2939 while (*stringp++ != 0) 2940 destp++; 2941 destp++; 2942 } 2943 2944 /* end of vector table is a null pointer */ 2945 suword32(vectp, 0); 2946 2947 return ((register_t *)stack_base); 2948 } 2949 2950 int 2951 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2952 { 2953 struct kld_file_stat *stat; 2954 struct kld32_file_stat *stat32; 2955 int error, version; 2956 2957 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2958 != 0) 2959 return (error); 2960 if (version != sizeof(struct kld32_file_stat_1) && 2961 version != sizeof(struct kld32_file_stat)) 2962 return (EINVAL); 2963 2964 stat = malloc(sizeof(*stat), M_TEMP, M_WAITOK | M_ZERO); 2965 stat32 = malloc(sizeof(*stat32), M_TEMP, M_WAITOK | M_ZERO); 2966 error = kern_kldstat(td, uap->fileid, stat); 2967 if (error == 0) { 2968 bcopy(&stat->name[0], &stat32->name[0], sizeof(stat->name)); 2969 CP(*stat, *stat32, refs); 2970 CP(*stat, *stat32, id); 2971 PTROUT_CP(*stat, *stat32, address); 2972 CP(*stat, *stat32, size); 2973 bcopy(&stat->pathname[0], &stat32->pathname[0], 2974 sizeof(stat->pathname)); 2975 error = copyout(stat32, uap->stat, version); 2976 } 2977 free(stat, M_TEMP); 2978 free(stat32, M_TEMP); 2979 return (error); 2980 } 2981 2982 int 2983 freebsd32_posix_fallocate(struct thread *td, 2984 struct freebsd32_posix_fallocate_args *uap) 2985 { 2986 int error; 2987 2988 error = kern_posix_fallocate(td, uap->fd, 2989 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 2990 return (kern_posix_error(td, error)); 2991 } 2992 2993 int 2994 freebsd32_posix_fadvise(struct thread *td, 2995 struct freebsd32_posix_fadvise_args *uap) 2996 { 2997 int error; 2998 2999 error = kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset), 3000 PAIR32TO64(off_t, uap->len), uap->advice); 3001 return (kern_posix_error(td, error)); 3002 } 3003 3004 int 3005 convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 3006 { 3007 3008 CP(*sig32, *sig, sigev_notify); 3009 switch (sig->sigev_notify) { 3010 case SIGEV_NONE: 3011 break; 3012 case SIGEV_THREAD_ID: 3013 CP(*sig32, *sig, sigev_notify_thread_id); 3014 /* FALLTHROUGH */ 3015 case SIGEV_SIGNAL: 3016 CP(*sig32, *sig, sigev_signo); 3017 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3018 break; 3019 case SIGEV_KEVENT: 3020 CP(*sig32, *sig, sigev_notify_kqueue); 3021 CP(*sig32, *sig, sigev_notify_kevent_flags); 3022 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3023 break; 3024 default: 3025 return (EINVAL); 3026 } 3027 return (0); 3028 } 3029 3030 int 3031 freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3032 { 3033 void *data; 3034 union { 3035 struct procctl_reaper_status rs; 3036 struct procctl_reaper_pids rp; 3037 struct procctl_reaper_kill rk; 3038 } x; 3039 union { 3040 struct procctl_reaper_pids32 rp; 3041 } x32; 3042 int error, error1, flags; 3043 3044 switch (uap->com) { 3045 case PROC_SPROTECT: 3046 case PROC_TRACE_CTL: 3047 case PROC_TRAPCAP_CTL: 3048 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3049 if (error != 0) 3050 return (error); 3051 data = &flags; 3052 break; 3053 case PROC_REAP_ACQUIRE: 3054 case PROC_REAP_RELEASE: 3055 if (uap->data != NULL) 3056 return (EINVAL); 3057 data = NULL; 3058 break; 3059 case PROC_REAP_STATUS: 3060 data = &x.rs; 3061 break; 3062 case PROC_REAP_GETPIDS: 3063 error = copyin(uap->data, &x32.rp, sizeof(x32.rp)); 3064 if (error != 0) 3065 return (error); 3066 CP(x32.rp, x.rp, rp_count); 3067 PTRIN_CP(x32.rp, x.rp, rp_pids); 3068 data = &x.rp; 3069 break; 3070 case PROC_REAP_KILL: 3071 error = copyin(uap->data, &x.rk, sizeof(x.rk)); 3072 if (error != 0) 3073 return (error); 3074 data = &x.rk; 3075 break; 3076 case PROC_TRACE_STATUS: 3077 case PROC_TRAPCAP_STATUS: 3078 data = &flags; 3079 break; 3080 default: 3081 return (EINVAL); 3082 } 3083 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3084 uap->com, data); 3085 switch (uap->com) { 3086 case PROC_REAP_STATUS: 3087 if (error == 0) 3088 error = copyout(&x.rs, uap->data, sizeof(x.rs)); 3089 break; 3090 case PROC_REAP_KILL: 3091 error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); 3092 if (error == 0) 3093 error = error1; 3094 break; 3095 case PROC_TRACE_STATUS: 3096 case PROC_TRAPCAP_STATUS: 3097 if (error == 0) 3098 error = copyout(&flags, uap->data, sizeof(flags)); 3099 break; 3100 } 3101 return (error); 3102 } 3103 3104 int 3105 freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 3106 { 3107 long tmp; 3108 3109 switch (uap->cmd) { 3110 /* 3111 * Do unsigned conversion for arg when operation 3112 * interprets it as flags or pointer. 3113 */ 3114 case F_SETLK_REMOTE: 3115 case F_SETLKW: 3116 case F_SETLK: 3117 case F_GETLK: 3118 case F_SETFD: 3119 case F_SETFL: 3120 case F_OGETLK: 3121 case F_OSETLK: 3122 case F_OSETLKW: 3123 tmp = (unsigned int)(uap->arg); 3124 break; 3125 default: 3126 tmp = uap->arg; 3127 break; 3128 } 3129 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 3130 } 3131 3132 int 3133 freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap) 3134 { 3135 struct timespec32 ts32; 3136 struct timespec ts, *tsp; 3137 sigset_t set, *ssp; 3138 int error; 3139 3140 if (uap->ts != NULL) { 3141 error = copyin(uap->ts, &ts32, sizeof(ts32)); 3142 if (error != 0) 3143 return (error); 3144 CP(ts32, ts, tv_sec); 3145 CP(ts32, ts, tv_nsec); 3146 tsp = &ts; 3147 } else 3148 tsp = NULL; 3149 if (uap->set != NULL) { 3150 error = copyin(uap->set, &set, sizeof(set)); 3151 if (error != 0) 3152 return (error); 3153 ssp = &set; 3154 } else 3155 ssp = NULL; 3156 3157 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp)); 3158 }
Cache object: fc86044b16d111bf746ffdce4de370a3
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