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/11.0/sys/compat/freebsd32/freebsd32_misc.c 325876 2017-11-15 22:50:20Z gordon $"); 29 30 #include "opt_compat.h" 31 #include "opt_inet.h" 32 #include "opt_inet6.h" 33 34 #define __ELF_WORD_SIZE 32 35 36 #include <sys/param.h> 37 #include <sys/bus.h> 38 #include <sys/capsicum.h> 39 #include <sys/clock.h> 40 #include <sys/exec.h> 41 #include <sys/fcntl.h> 42 #include <sys/filedesc.h> 43 #include <sys/imgact.h> 44 #include <sys/jail.h> 45 #include <sys/kernel.h> 46 #include <sys/limits.h> 47 #include <sys/linker.h> 48 #include <sys/lock.h> 49 #include <sys/malloc.h> 50 #include <sys/file.h> /* Must come after sys/malloc.h */ 51 #include <sys/imgact.h> 52 #include <sys/mbuf.h> 53 #include <sys/mman.h> 54 #include <sys/module.h> 55 #include <sys/mount.h> 56 #include <sys/mutex.h> 57 #include <sys/namei.h> 58 #include <sys/proc.h> 59 #include <sys/procctl.h> 60 #include <sys/reboot.h> 61 #include <sys/resource.h> 62 #include <sys/resourcevar.h> 63 #include <sys/selinfo.h> 64 #include <sys/eventvar.h> /* Must come after sys/selinfo.h */ 65 #include <sys/pipe.h> /* Must come after sys/selinfo.h */ 66 #include <sys/signal.h> 67 #include <sys/signalvar.h> 68 #include <sys/socket.h> 69 #include <sys/socketvar.h> 70 #include <sys/stat.h> 71 #include <sys/syscall.h> 72 #include <sys/syscallsubr.h> 73 #include <sys/sysctl.h> 74 #include <sys/sysent.h> 75 #include <sys/sysproto.h> 76 #include <sys/systm.h> 77 #include <sys/thr.h> 78 #include <sys/unistd.h> 79 #include <sys/ucontext.h> 80 #include <sys/vnode.h> 81 #include <sys/wait.h> 82 #include <sys/ipc.h> 83 #include <sys/msg.h> 84 #include <sys/sem.h> 85 #include <sys/shm.h> 86 87 #ifdef INET 88 #include <netinet/in.h> 89 #endif 90 91 #include <vm/vm.h> 92 #include <vm/vm_param.h> 93 #include <vm/pmap.h> 94 #include <vm/vm_map.h> 95 #include <vm/vm_object.h> 96 #include <vm/vm_extern.h> 97 98 #include <machine/cpu.h> 99 #include <machine/elf.h> 100 101 #include <security/audit/audit.h> 102 103 #include <compat/freebsd32/freebsd32_util.h> 104 #include <compat/freebsd32/freebsd32.h> 105 #include <compat/freebsd32/freebsd32_ipc.h> 106 #include <compat/freebsd32/freebsd32_misc.h> 107 #include <compat/freebsd32/freebsd32_signal.h> 108 #include <compat/freebsd32/freebsd32_proto.h> 109 110 FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD"); 111 112 #ifndef __mips__ 113 CTASSERT(sizeof(struct timeval32) == 8); 114 CTASSERT(sizeof(struct timespec32) == 8); 115 CTASSERT(sizeof(struct itimerval32) == 16); 116 #endif 117 CTASSERT(sizeof(struct statfs32) == 256); 118 #ifndef __mips__ 119 CTASSERT(sizeof(struct rusage32) == 72); 120 #endif 121 CTASSERT(sizeof(struct sigaltstack32) == 12); 122 CTASSERT(sizeof(struct kevent32) == 20); 123 CTASSERT(sizeof(struct iovec32) == 8); 124 CTASSERT(sizeof(struct msghdr32) == 28); 125 #ifndef __mips__ 126 CTASSERT(sizeof(struct stat32) == 96); 127 #endif 128 CTASSERT(sizeof(struct sigaction32) == 24); 129 130 static int freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count); 131 static int freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count); 132 133 void 134 freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32) 135 { 136 137 TV_CP(*s, *s32, ru_utime); 138 TV_CP(*s, *s32, ru_stime); 139 CP(*s, *s32, ru_maxrss); 140 CP(*s, *s32, ru_ixrss); 141 CP(*s, *s32, ru_idrss); 142 CP(*s, *s32, ru_isrss); 143 CP(*s, *s32, ru_minflt); 144 CP(*s, *s32, ru_majflt); 145 CP(*s, *s32, ru_nswap); 146 CP(*s, *s32, ru_inblock); 147 CP(*s, *s32, ru_oublock); 148 CP(*s, *s32, ru_msgsnd); 149 CP(*s, *s32, ru_msgrcv); 150 CP(*s, *s32, ru_nsignals); 151 CP(*s, *s32, ru_nvcsw); 152 CP(*s, *s32, ru_nivcsw); 153 } 154 155 int 156 freebsd32_wait4(struct thread *td, struct freebsd32_wait4_args *uap) 157 { 158 int error, status; 159 struct rusage32 ru32; 160 struct rusage ru, *rup; 161 162 if (uap->rusage != NULL) 163 rup = &ru; 164 else 165 rup = NULL; 166 error = kern_wait(td, uap->pid, &status, uap->options, rup); 167 if (error) 168 return (error); 169 if (uap->status != NULL) 170 error = copyout(&status, uap->status, sizeof(status)); 171 if (uap->rusage != NULL && error == 0) { 172 freebsd32_rusage_out(&ru, &ru32); 173 error = copyout(&ru32, uap->rusage, sizeof(ru32)); 174 } 175 return (error); 176 } 177 178 int 179 freebsd32_wait6(struct thread *td, struct freebsd32_wait6_args *uap) 180 { 181 struct wrusage32 wru32; 182 struct __wrusage wru, *wrup; 183 struct siginfo32 si32; 184 struct __siginfo si, *sip; 185 int error, status; 186 187 if (uap->wrusage != NULL) 188 wrup = &wru; 189 else 190 wrup = NULL; 191 if (uap->info != NULL) { 192 sip = &si; 193 bzero(sip, sizeof(*sip)); 194 } else 195 sip = NULL; 196 error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id), 197 &status, uap->options, wrup, sip); 198 if (error != 0) 199 return (error); 200 if (uap->status != NULL) 201 error = copyout(&status, uap->status, sizeof(status)); 202 if (uap->wrusage != NULL && error == 0) { 203 freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self); 204 freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children); 205 error = copyout(&wru32, uap->wrusage, sizeof(wru32)); 206 } 207 if (uap->info != NULL && error == 0) { 208 siginfo_to_siginfo32 (&si, &si32); 209 error = copyout(&si32, uap->info, sizeof(si32)); 210 } 211 return (error); 212 } 213 214 #ifdef COMPAT_FREEBSD4 215 static void 216 copy_statfs(struct statfs *in, struct statfs32 *out) 217 { 218 219 statfs_scale_blocks(in, INT32_MAX); 220 bzero(out, sizeof(*out)); 221 CP(*in, *out, f_bsize); 222 out->f_iosize = MIN(in->f_iosize, INT32_MAX); 223 CP(*in, *out, f_blocks); 224 CP(*in, *out, f_bfree); 225 CP(*in, *out, f_bavail); 226 out->f_files = MIN(in->f_files, INT32_MAX); 227 out->f_ffree = MIN(in->f_ffree, INT32_MAX); 228 CP(*in, *out, f_fsid); 229 CP(*in, *out, f_owner); 230 CP(*in, *out, f_type); 231 CP(*in, *out, f_flags); 232 out->f_syncwrites = MIN(in->f_syncwrites, INT32_MAX); 233 out->f_asyncwrites = MIN(in->f_asyncwrites, INT32_MAX); 234 strlcpy(out->f_fstypename, 235 in->f_fstypename, MFSNAMELEN); 236 strlcpy(out->f_mntonname, 237 in->f_mntonname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 238 out->f_syncreads = MIN(in->f_syncreads, INT32_MAX); 239 out->f_asyncreads = MIN(in->f_asyncreads, INT32_MAX); 240 strlcpy(out->f_mntfromname, 241 in->f_mntfromname, min(MNAMELEN, FREEBSD4_MNAMELEN)); 242 } 243 #endif 244 245 #ifdef COMPAT_FREEBSD4 246 int 247 freebsd4_freebsd32_getfsstat(struct thread *td, struct freebsd4_freebsd32_getfsstat_args *uap) 248 { 249 struct statfs *buf, *sp; 250 struct statfs32 stat32; 251 size_t count, size, copycount; 252 int error; 253 254 count = uap->bufsize / sizeof(struct statfs32); 255 size = count * sizeof(struct statfs); 256 error = kern_getfsstat(td, &buf, size, &count, UIO_SYSSPACE, uap->flags); 257 if (size > 0) { 258 sp = buf; 259 copycount = count; 260 while (copycount > 0 && error == 0) { 261 copy_statfs(sp, &stat32); 262 error = copyout(&stat32, uap->buf, sizeof(stat32)); 263 sp++; 264 uap->buf++; 265 copycount--; 266 } 267 free(buf, M_TEMP); 268 } 269 if (error == 0) 270 td->td_retval[0] = count; 271 return (error); 272 } 273 #endif 274 275 #ifdef COMPAT_FREEBSD10 276 int 277 freebsd10_freebsd32_pipe(struct thread *td, 278 struct freebsd10_freebsd32_pipe_args *uap) { 279 280 return (freebsd10_pipe(td, (struct freebsd10_pipe_args*)uap)); 281 } 282 #endif 283 284 int 285 freebsd32_sigaltstack(struct thread *td, 286 struct freebsd32_sigaltstack_args *uap) 287 { 288 struct sigaltstack32 s32; 289 struct sigaltstack ss, oss, *ssp; 290 int error; 291 292 if (uap->ss != NULL) { 293 error = copyin(uap->ss, &s32, sizeof(s32)); 294 if (error) 295 return (error); 296 PTRIN_CP(s32, ss, ss_sp); 297 CP(s32, ss, ss_size); 298 CP(s32, ss, ss_flags); 299 ssp = &ss; 300 } else 301 ssp = NULL; 302 error = kern_sigaltstack(td, ssp, &oss); 303 if (error == 0 && uap->oss != NULL) { 304 PTROUT_CP(oss, s32, ss_sp); 305 CP(oss, s32, ss_size); 306 CP(oss, s32, ss_flags); 307 error = copyout(&s32, uap->oss, sizeof(s32)); 308 } 309 return (error); 310 } 311 312 /* 313 * Custom version of exec_copyin_args() so that we can translate 314 * the pointers. 315 */ 316 int 317 freebsd32_exec_copyin_args(struct image_args *args, char *fname, 318 enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv) 319 { 320 char *argp, *envp; 321 u_int32_t *p32, arg; 322 size_t length; 323 int error; 324 325 bzero(args, sizeof(*args)); 326 if (argv == NULL) 327 return (EFAULT); 328 329 /* 330 * Allocate demand-paged memory for the file name, argument, and 331 * environment strings. 332 */ 333 error = exec_alloc_args(args); 334 if (error != 0) 335 return (error); 336 337 /* 338 * Copy the file name. 339 */ 340 if (fname != NULL) { 341 args->fname = args->buf; 342 error = (segflg == UIO_SYSSPACE) ? 343 copystr(fname, args->fname, PATH_MAX, &length) : 344 copyinstr(fname, args->fname, PATH_MAX, &length); 345 if (error != 0) 346 goto err_exit; 347 } else 348 length = 0; 349 350 args->begin_argv = args->buf + length; 351 args->endp = args->begin_argv; 352 args->stringspace = ARG_MAX; 353 354 /* 355 * extract arguments first 356 */ 357 p32 = argv; 358 for (;;) { 359 error = copyin(p32++, &arg, sizeof(arg)); 360 if (error) 361 goto err_exit; 362 if (arg == 0) 363 break; 364 argp = PTRIN(arg); 365 error = copyinstr(argp, args->endp, args->stringspace, &length); 366 if (error) { 367 if (error == ENAMETOOLONG) 368 error = E2BIG; 369 goto err_exit; 370 } 371 args->stringspace -= length; 372 args->endp += length; 373 args->argc++; 374 } 375 376 args->begin_envv = args->endp; 377 378 /* 379 * extract environment strings 380 */ 381 if (envv) { 382 p32 = envv; 383 for (;;) { 384 error = copyin(p32++, &arg, sizeof(arg)); 385 if (error) 386 goto err_exit; 387 if (arg == 0) 388 break; 389 envp = PTRIN(arg); 390 error = copyinstr(envp, args->endp, args->stringspace, 391 &length); 392 if (error) { 393 if (error == ENAMETOOLONG) 394 error = E2BIG; 395 goto err_exit; 396 } 397 args->stringspace -= length; 398 args->endp += length; 399 args->envc++; 400 } 401 } 402 403 return (0); 404 405 err_exit: 406 exec_free_args(args); 407 return (error); 408 } 409 410 int 411 freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap) 412 { 413 struct image_args eargs; 414 struct vmspace *oldvmspace; 415 int error; 416 417 error = pre_execve(td, &oldvmspace); 418 if (error != 0) 419 return (error); 420 error = freebsd32_exec_copyin_args(&eargs, uap->fname, UIO_USERSPACE, 421 uap->argv, uap->envv); 422 if (error == 0) 423 error = kern_execve(td, &eargs, NULL); 424 post_execve(td, error, oldvmspace); 425 return (error); 426 } 427 428 int 429 freebsd32_fexecve(struct thread *td, struct freebsd32_fexecve_args *uap) 430 { 431 struct image_args eargs; 432 struct vmspace *oldvmspace; 433 int error; 434 435 error = pre_execve(td, &oldvmspace); 436 if (error != 0) 437 return (error); 438 error = freebsd32_exec_copyin_args(&eargs, NULL, UIO_SYSSPACE, 439 uap->argv, uap->envv); 440 if (error == 0) { 441 eargs.fd = uap->fd; 442 error = kern_execve(td, &eargs, NULL); 443 } 444 post_execve(td, error, oldvmspace); 445 return (error); 446 } 447 448 int 449 freebsd32_mprotect(struct thread *td, struct freebsd32_mprotect_args *uap) 450 { 451 struct mprotect_args ap; 452 453 ap.addr = PTRIN(uap->addr); 454 ap.len = uap->len; 455 ap.prot = uap->prot; 456 #if defined(__amd64__) 457 if (i386_read_exec && (ap.prot & PROT_READ) != 0) 458 ap.prot |= PROT_EXEC; 459 #endif 460 return (sys_mprotect(td, &ap)); 461 } 462 463 int 464 freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap) 465 { 466 struct mmap_args ap; 467 vm_offset_t addr = (vm_offset_t) uap->addr; 468 vm_size_t len = uap->len; 469 int prot = uap->prot; 470 int flags = uap->flags; 471 int fd = uap->fd; 472 off_t pos = PAIR32TO64(off_t,uap->pos); 473 474 #if defined(__amd64__) 475 if (i386_read_exec && (prot & PROT_READ)) 476 prot |= PROT_EXEC; 477 #endif 478 479 ap.addr = (void *) addr; 480 ap.len = len; 481 ap.prot = prot; 482 ap.flags = flags; 483 ap.fd = fd; 484 ap.pos = pos; 485 486 return (sys_mmap(td, &ap)); 487 } 488 489 #ifdef COMPAT_FREEBSD6 490 int 491 freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap) 492 { 493 struct freebsd32_mmap_args ap; 494 495 ap.addr = uap->addr; 496 ap.len = uap->len; 497 ap.prot = uap->prot; 498 ap.flags = uap->flags; 499 ap.fd = uap->fd; 500 ap.pos1 = uap->pos1; 501 ap.pos2 = uap->pos2; 502 503 return (freebsd32_mmap(td, &ap)); 504 } 505 #endif 506 507 int 508 freebsd32_setitimer(struct thread *td, struct freebsd32_setitimer_args *uap) 509 { 510 struct itimerval itv, oitv, *itvp; 511 struct itimerval32 i32; 512 int error; 513 514 if (uap->itv != NULL) { 515 error = copyin(uap->itv, &i32, sizeof(i32)); 516 if (error) 517 return (error); 518 TV_CP(i32, itv, it_interval); 519 TV_CP(i32, itv, it_value); 520 itvp = &itv; 521 } else 522 itvp = NULL; 523 error = kern_setitimer(td, uap->which, itvp, &oitv); 524 if (error || uap->oitv == NULL) 525 return (error); 526 TV_CP(oitv, i32, it_interval); 527 TV_CP(oitv, i32, it_value); 528 return (copyout(&i32, uap->oitv, sizeof(i32))); 529 } 530 531 int 532 freebsd32_getitimer(struct thread *td, struct freebsd32_getitimer_args *uap) 533 { 534 struct itimerval itv; 535 struct itimerval32 i32; 536 int error; 537 538 error = kern_getitimer(td, uap->which, &itv); 539 if (error || uap->itv == NULL) 540 return (error); 541 TV_CP(itv, i32, it_interval); 542 TV_CP(itv, i32, it_value); 543 return (copyout(&i32, uap->itv, sizeof(i32))); 544 } 545 546 int 547 freebsd32_select(struct thread *td, struct freebsd32_select_args *uap) 548 { 549 struct timeval32 tv32; 550 struct timeval tv, *tvp; 551 int error; 552 553 if (uap->tv != NULL) { 554 error = copyin(uap->tv, &tv32, sizeof(tv32)); 555 if (error) 556 return (error); 557 CP(tv32, tv, tv_sec); 558 CP(tv32, tv, tv_usec); 559 tvp = &tv; 560 } else 561 tvp = NULL; 562 /* 563 * XXX Do pointers need PTRIN()? 564 */ 565 return (kern_select(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 566 sizeof(int32_t) * 8)); 567 } 568 569 int 570 freebsd32_pselect(struct thread *td, struct freebsd32_pselect_args *uap) 571 { 572 struct timespec32 ts32; 573 struct timespec ts; 574 struct timeval tv, *tvp; 575 sigset_t set, *uset; 576 int error; 577 578 if (uap->ts != NULL) { 579 error = copyin(uap->ts, &ts32, sizeof(ts32)); 580 if (error != 0) 581 return (error); 582 CP(ts32, ts, tv_sec); 583 CP(ts32, ts, tv_nsec); 584 TIMESPEC_TO_TIMEVAL(&tv, &ts); 585 tvp = &tv; 586 } else 587 tvp = NULL; 588 if (uap->sm != NULL) { 589 error = copyin(uap->sm, &set, sizeof(set)); 590 if (error != 0) 591 return (error); 592 uset = &set; 593 } else 594 uset = NULL; 595 /* 596 * XXX Do pointers need PTRIN()? 597 */ 598 error = kern_pselect(td, uap->nd, uap->in, uap->ou, uap->ex, tvp, 599 uset, sizeof(int32_t) * 8); 600 return (error); 601 } 602 603 /* 604 * Copy 'count' items into the destination list pointed to by uap->eventlist. 605 */ 606 static int 607 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count) 608 { 609 struct freebsd32_kevent_args *uap; 610 struct kevent32 ks32[KQ_NEVENTS]; 611 int i, error = 0; 612 613 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 614 uap = (struct freebsd32_kevent_args *)arg; 615 616 for (i = 0; i < count; i++) { 617 CP(kevp[i], ks32[i], ident); 618 CP(kevp[i], ks32[i], filter); 619 CP(kevp[i], ks32[i], flags); 620 CP(kevp[i], ks32[i], fflags); 621 CP(kevp[i], ks32[i], data); 622 PTROUT_CP(kevp[i], ks32[i], udata); 623 } 624 error = copyout(ks32, uap->eventlist, count * sizeof *ks32); 625 if (error == 0) 626 uap->eventlist += count; 627 return (error); 628 } 629 630 /* 631 * Copy 'count' items from the list pointed to by uap->changelist. 632 */ 633 static int 634 freebsd32_kevent_copyin(void *arg, struct kevent *kevp, int count) 635 { 636 struct freebsd32_kevent_args *uap; 637 struct kevent32 ks32[KQ_NEVENTS]; 638 int i, error = 0; 639 640 KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count)); 641 uap = (struct freebsd32_kevent_args *)arg; 642 643 error = copyin(uap->changelist, ks32, count * sizeof *ks32); 644 if (error) 645 goto done; 646 uap->changelist += count; 647 648 for (i = 0; i < count; i++) { 649 CP(ks32[i], kevp[i], ident); 650 CP(ks32[i], kevp[i], filter); 651 CP(ks32[i], kevp[i], flags); 652 CP(ks32[i], kevp[i], fflags); 653 CP(ks32[i], kevp[i], data); 654 PTRIN_CP(ks32[i], kevp[i], udata); 655 } 656 done: 657 return (error); 658 } 659 660 int 661 freebsd32_kevent(struct thread *td, struct freebsd32_kevent_args *uap) 662 { 663 struct timespec32 ts32; 664 struct timespec ts, *tsp; 665 struct kevent_copyops k_ops = { uap, 666 freebsd32_kevent_copyout, 667 freebsd32_kevent_copyin}; 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 error = kern_kevent(td, uap->fd, uap->nchanges, uap->nevents, 681 &k_ops, tsp); 682 return (error); 683 } 684 685 int 686 freebsd32_gettimeofday(struct thread *td, 687 struct freebsd32_gettimeofday_args *uap) 688 { 689 struct timeval atv; 690 struct timeval32 atv32; 691 struct timezone rtz; 692 int error = 0; 693 694 if (uap->tp) { 695 microtime(&atv); 696 CP(atv, atv32, tv_sec); 697 CP(atv, atv32, tv_usec); 698 error = copyout(&atv32, uap->tp, sizeof (atv32)); 699 } 700 if (error == 0 && uap->tzp != NULL) { 701 rtz.tz_minuteswest = tz_minuteswest; 702 rtz.tz_dsttime = tz_dsttime; 703 error = copyout(&rtz, uap->tzp, sizeof (rtz)); 704 } 705 return (error); 706 } 707 708 int 709 freebsd32_getrusage(struct thread *td, struct freebsd32_getrusage_args *uap) 710 { 711 struct rusage32 s32; 712 struct rusage s; 713 int error; 714 715 error = kern_getrusage(td, uap->who, &s); 716 if (error) 717 return (error); 718 if (uap->rusage != NULL) { 719 freebsd32_rusage_out(&s, &s32); 720 error = copyout(&s32, uap->rusage, sizeof(s32)); 721 } 722 return (error); 723 } 724 725 static int 726 freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt, struct uio **uiop) 727 { 728 struct iovec32 iov32; 729 struct iovec *iov; 730 struct uio *uio; 731 u_int iovlen; 732 int error, i; 733 734 *uiop = NULL; 735 if (iovcnt > UIO_MAXIOV) 736 return (EINVAL); 737 iovlen = iovcnt * sizeof(struct iovec); 738 uio = malloc(iovlen + sizeof *uio, M_IOV, M_WAITOK); 739 iov = (struct iovec *)(uio + 1); 740 for (i = 0; i < iovcnt; i++) { 741 error = copyin(&iovp[i], &iov32, sizeof(struct iovec32)); 742 if (error) { 743 free(uio, M_IOV); 744 return (error); 745 } 746 iov[i].iov_base = PTRIN(iov32.iov_base); 747 iov[i].iov_len = iov32.iov_len; 748 } 749 uio->uio_iov = iov; 750 uio->uio_iovcnt = iovcnt; 751 uio->uio_segflg = UIO_USERSPACE; 752 uio->uio_offset = -1; 753 uio->uio_resid = 0; 754 for (i = 0; i < iovcnt; i++) { 755 if (iov->iov_len > INT_MAX - uio->uio_resid) { 756 free(uio, M_IOV); 757 return (EINVAL); 758 } 759 uio->uio_resid += iov->iov_len; 760 iov++; 761 } 762 *uiop = uio; 763 return (0); 764 } 765 766 int 767 freebsd32_readv(struct thread *td, struct freebsd32_readv_args *uap) 768 { 769 struct uio *auio; 770 int error; 771 772 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 773 if (error) 774 return (error); 775 error = kern_readv(td, uap->fd, auio); 776 free(auio, M_IOV); 777 return (error); 778 } 779 780 int 781 freebsd32_writev(struct thread *td, struct freebsd32_writev_args *uap) 782 { 783 struct uio *auio; 784 int error; 785 786 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 787 if (error) 788 return (error); 789 error = kern_writev(td, uap->fd, auio); 790 free(auio, M_IOV); 791 return (error); 792 } 793 794 int 795 freebsd32_preadv(struct thread *td, struct freebsd32_preadv_args *uap) 796 { 797 struct uio *auio; 798 int error; 799 800 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 801 if (error) 802 return (error); 803 error = kern_preadv(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 804 free(auio, M_IOV); 805 return (error); 806 } 807 808 int 809 freebsd32_pwritev(struct thread *td, struct freebsd32_pwritev_args *uap) 810 { 811 struct uio *auio; 812 int error; 813 814 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 815 if (error) 816 return (error); 817 error = kern_pwritev(td, uap->fd, auio, PAIR32TO64(off_t,uap->offset)); 818 free(auio, M_IOV); 819 return (error); 820 } 821 822 int 823 freebsd32_copyiniov(struct iovec32 *iovp32, u_int iovcnt, struct iovec **iovp, 824 int error) 825 { 826 struct iovec32 iov32; 827 struct iovec *iov; 828 u_int iovlen; 829 int i; 830 831 *iovp = NULL; 832 if (iovcnt > UIO_MAXIOV) 833 return (error); 834 iovlen = iovcnt * sizeof(struct iovec); 835 iov = malloc(iovlen, M_IOV, M_WAITOK); 836 for (i = 0; i < iovcnt; i++) { 837 error = copyin(&iovp32[i], &iov32, sizeof(struct iovec32)); 838 if (error) { 839 free(iov, M_IOV); 840 return (error); 841 } 842 iov[i].iov_base = PTRIN(iov32.iov_base); 843 iov[i].iov_len = iov32.iov_len; 844 } 845 *iovp = iov; 846 return (0); 847 } 848 849 static int 850 freebsd32_copyinmsghdr(struct msghdr32 *msg32, struct msghdr *msg) 851 { 852 struct msghdr32 m32; 853 int error; 854 855 error = copyin(msg32, &m32, sizeof(m32)); 856 if (error) 857 return (error); 858 msg->msg_name = PTRIN(m32.msg_name); 859 msg->msg_namelen = m32.msg_namelen; 860 msg->msg_iov = PTRIN(m32.msg_iov); 861 msg->msg_iovlen = m32.msg_iovlen; 862 msg->msg_control = PTRIN(m32.msg_control); 863 msg->msg_controllen = m32.msg_controllen; 864 msg->msg_flags = m32.msg_flags; 865 return (0); 866 } 867 868 static int 869 freebsd32_copyoutmsghdr(struct msghdr *msg, struct msghdr32 *msg32) 870 { 871 struct msghdr32 m32; 872 int error; 873 874 m32.msg_name = PTROUT(msg->msg_name); 875 m32.msg_namelen = msg->msg_namelen; 876 m32.msg_iov = PTROUT(msg->msg_iov); 877 m32.msg_iovlen = msg->msg_iovlen; 878 m32.msg_control = PTROUT(msg->msg_control); 879 m32.msg_controllen = msg->msg_controllen; 880 m32.msg_flags = msg->msg_flags; 881 error = copyout(&m32, msg32, sizeof(m32)); 882 return (error); 883 } 884 885 #ifndef __mips__ 886 #define FREEBSD32_ALIGNBYTES (sizeof(int) - 1) 887 #else 888 #define FREEBSD32_ALIGNBYTES (sizeof(long) - 1) 889 #endif 890 #define FREEBSD32_ALIGN(p) \ 891 (((u_long)(p) + FREEBSD32_ALIGNBYTES) & ~FREEBSD32_ALIGNBYTES) 892 #define FREEBSD32_CMSG_SPACE(l) \ 893 (FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + FREEBSD32_ALIGN(l)) 894 895 #define FREEBSD32_CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 896 FREEBSD32_ALIGN(sizeof(struct cmsghdr))) 897 static int 898 freebsd32_copy_msg_out(struct msghdr *msg, struct mbuf *control) 899 { 900 struct cmsghdr *cm; 901 void *data; 902 socklen_t clen, datalen; 903 int error; 904 caddr_t ctlbuf; 905 int len, maxlen, copylen; 906 struct mbuf *m; 907 error = 0; 908 909 len = msg->msg_controllen; 910 maxlen = msg->msg_controllen; 911 msg->msg_controllen = 0; 912 913 m = control; 914 ctlbuf = msg->msg_control; 915 916 while (m && len > 0) { 917 cm = mtod(m, struct cmsghdr *); 918 clen = m->m_len; 919 920 while (cm != NULL) { 921 922 if (sizeof(struct cmsghdr) > clen || 923 cm->cmsg_len > clen) { 924 error = EINVAL; 925 break; 926 } 927 928 data = CMSG_DATA(cm); 929 datalen = (caddr_t)cm + cm->cmsg_len - (caddr_t)data; 930 931 /* Adjust message length */ 932 cm->cmsg_len = FREEBSD32_ALIGN(sizeof(struct cmsghdr)) + 933 datalen; 934 935 936 /* Copy cmsghdr */ 937 copylen = sizeof(struct cmsghdr); 938 if (len < copylen) { 939 msg->msg_flags |= MSG_CTRUNC; 940 copylen = len; 941 } 942 943 error = copyout(cm,ctlbuf,copylen); 944 if (error) 945 goto exit; 946 947 ctlbuf += FREEBSD32_ALIGN(copylen); 948 len -= FREEBSD32_ALIGN(copylen); 949 950 if (len <= 0) 951 break; 952 953 /* Copy data */ 954 copylen = datalen; 955 if (len < copylen) { 956 msg->msg_flags |= MSG_CTRUNC; 957 copylen = len; 958 } 959 960 error = copyout(data,ctlbuf,copylen); 961 if (error) 962 goto exit; 963 964 ctlbuf += FREEBSD32_ALIGN(copylen); 965 len -= FREEBSD32_ALIGN(copylen); 966 967 if (CMSG_SPACE(datalen) < clen) { 968 clen -= CMSG_SPACE(datalen); 969 cm = (struct cmsghdr *) 970 ((caddr_t)cm + CMSG_SPACE(datalen)); 971 } else { 972 clen = 0; 973 cm = NULL; 974 } 975 } 976 m = m->m_next; 977 } 978 979 msg->msg_controllen = (len <= 0) ? maxlen : ctlbuf - (caddr_t)msg->msg_control; 980 981 exit: 982 return (error); 983 984 } 985 986 int 987 freebsd32_recvmsg(td, uap) 988 struct thread *td; 989 struct freebsd32_recvmsg_args /* { 990 int s; 991 struct msghdr32 *msg; 992 int flags; 993 } */ *uap; 994 { 995 struct msghdr msg; 996 struct msghdr32 m32; 997 struct iovec *uiov, *iov; 998 struct mbuf *control = NULL; 999 struct mbuf **controlp; 1000 1001 int error; 1002 error = copyin(uap->msg, &m32, sizeof(m32)); 1003 if (error) 1004 return (error); 1005 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1006 if (error) 1007 return (error); 1008 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1009 EMSGSIZE); 1010 if (error) 1011 return (error); 1012 msg.msg_flags = uap->flags; 1013 uiov = msg.msg_iov; 1014 msg.msg_iov = iov; 1015 1016 controlp = (msg.msg_control != NULL) ? &control : NULL; 1017 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, controlp); 1018 if (error == 0) { 1019 msg.msg_iov = uiov; 1020 1021 if (control != NULL) 1022 error = freebsd32_copy_msg_out(&msg, control); 1023 else 1024 msg.msg_controllen = 0; 1025 1026 if (error == 0) 1027 error = freebsd32_copyoutmsghdr(&msg, uap->msg); 1028 } 1029 free(iov, M_IOV); 1030 1031 if (control != NULL) 1032 m_freem(control); 1033 1034 return (error); 1035 } 1036 1037 /* 1038 * Copy-in the array of control messages constructed using alignment 1039 * and padding suitable for a 32-bit environment and construct an 1040 * mbuf using alignment and padding suitable for a 64-bit kernel. 1041 * The alignment and padding are defined indirectly by CMSG_DATA(), 1042 * CMSG_SPACE() and CMSG_LEN(). 1043 */ 1044 static int 1045 freebsd32_copyin_control(struct mbuf **mp, caddr_t buf, u_int buflen) 1046 { 1047 struct mbuf *m; 1048 void *md; 1049 u_int idx, len, msglen; 1050 int error; 1051 1052 buflen = FREEBSD32_ALIGN(buflen); 1053 1054 if (buflen > MCLBYTES) 1055 return (EINVAL); 1056 1057 /* 1058 * Iterate over the buffer and get the length of each message 1059 * in there. This has 32-bit alignment and padding. Use it to 1060 * determine the length of these messages when using 64-bit 1061 * alignment and padding. 1062 */ 1063 idx = 0; 1064 len = 0; 1065 while (idx < buflen) { 1066 error = copyin(buf + idx, &msglen, sizeof(msglen)); 1067 if (error) 1068 return (error); 1069 if (msglen < sizeof(struct cmsghdr)) 1070 return (EINVAL); 1071 msglen = FREEBSD32_ALIGN(msglen); 1072 if (idx + msglen > buflen) 1073 return (EINVAL); 1074 idx += msglen; 1075 msglen += CMSG_ALIGN(sizeof(struct cmsghdr)) - 1076 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1077 len += CMSG_ALIGN(msglen); 1078 } 1079 1080 if (len > MCLBYTES) 1081 return (EINVAL); 1082 1083 m = m_get(M_WAITOK, MT_CONTROL); 1084 if (len > MLEN) 1085 MCLGET(m, M_WAITOK); 1086 m->m_len = len; 1087 1088 md = mtod(m, void *); 1089 while (buflen > 0) { 1090 error = copyin(buf, md, sizeof(struct cmsghdr)); 1091 if (error) 1092 break; 1093 msglen = *(u_int *)md; 1094 msglen = FREEBSD32_ALIGN(msglen); 1095 1096 /* Modify the message length to account for alignment. */ 1097 *(u_int *)md = msglen + CMSG_ALIGN(sizeof(struct cmsghdr)) - 1098 FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1099 1100 md = (char *)md + CMSG_ALIGN(sizeof(struct cmsghdr)); 1101 buf += FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1102 buflen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1103 1104 msglen -= FREEBSD32_ALIGN(sizeof(struct cmsghdr)); 1105 if (msglen > 0) { 1106 error = copyin(buf, md, msglen); 1107 if (error) 1108 break; 1109 md = (char *)md + CMSG_ALIGN(msglen); 1110 buf += msglen; 1111 buflen -= msglen; 1112 } 1113 } 1114 1115 if (error) 1116 m_free(m); 1117 else 1118 *mp = m; 1119 return (error); 1120 } 1121 1122 int 1123 freebsd32_sendmsg(struct thread *td, 1124 struct freebsd32_sendmsg_args *uap) 1125 { 1126 struct msghdr msg; 1127 struct msghdr32 m32; 1128 struct iovec *iov; 1129 struct mbuf *control = NULL; 1130 struct sockaddr *to = NULL; 1131 int error; 1132 1133 error = copyin(uap->msg, &m32, sizeof(m32)); 1134 if (error) 1135 return (error); 1136 error = freebsd32_copyinmsghdr(uap->msg, &msg); 1137 if (error) 1138 return (error); 1139 error = freebsd32_copyiniov(PTRIN(m32.msg_iov), m32.msg_iovlen, &iov, 1140 EMSGSIZE); 1141 if (error) 1142 return (error); 1143 msg.msg_iov = iov; 1144 if (msg.msg_name != NULL) { 1145 error = getsockaddr(&to, msg.msg_name, msg.msg_namelen); 1146 if (error) { 1147 to = NULL; 1148 goto out; 1149 } 1150 msg.msg_name = to; 1151 } 1152 1153 if (msg.msg_control) { 1154 if (msg.msg_controllen < sizeof(struct cmsghdr)) { 1155 error = EINVAL; 1156 goto out; 1157 } 1158 1159 error = freebsd32_copyin_control(&control, msg.msg_control, 1160 msg.msg_controllen); 1161 if (error) 1162 goto out; 1163 1164 msg.msg_control = NULL; 1165 msg.msg_controllen = 0; 1166 } 1167 1168 error = kern_sendit(td, uap->s, &msg, uap->flags, control, 1169 UIO_USERSPACE); 1170 1171 out: 1172 free(iov, M_IOV); 1173 if (to) 1174 free(to, M_SONAME); 1175 return (error); 1176 } 1177 1178 int 1179 freebsd32_recvfrom(struct thread *td, 1180 struct freebsd32_recvfrom_args *uap) 1181 { 1182 struct msghdr msg; 1183 struct iovec aiov; 1184 int error; 1185 1186 if (uap->fromlenaddr) { 1187 error = copyin(PTRIN(uap->fromlenaddr), &msg.msg_namelen, 1188 sizeof(msg.msg_namelen)); 1189 if (error) 1190 return (error); 1191 } else { 1192 msg.msg_namelen = 0; 1193 } 1194 1195 msg.msg_name = PTRIN(uap->from); 1196 msg.msg_iov = &aiov; 1197 msg.msg_iovlen = 1; 1198 aiov.iov_base = PTRIN(uap->buf); 1199 aiov.iov_len = uap->len; 1200 msg.msg_control = NULL; 1201 msg.msg_flags = uap->flags; 1202 error = kern_recvit(td, uap->s, &msg, UIO_USERSPACE, NULL); 1203 if (error == 0 && uap->fromlenaddr) 1204 error = copyout(&msg.msg_namelen, PTRIN(uap->fromlenaddr), 1205 sizeof (msg.msg_namelen)); 1206 return (error); 1207 } 1208 1209 int 1210 freebsd32_settimeofday(struct thread *td, 1211 struct freebsd32_settimeofday_args *uap) 1212 { 1213 struct timeval32 tv32; 1214 struct timeval tv, *tvp; 1215 struct timezone tz, *tzp; 1216 int error; 1217 1218 if (uap->tv) { 1219 error = copyin(uap->tv, &tv32, sizeof(tv32)); 1220 if (error) 1221 return (error); 1222 CP(tv32, tv, tv_sec); 1223 CP(tv32, tv, tv_usec); 1224 tvp = &tv; 1225 } else 1226 tvp = NULL; 1227 if (uap->tzp) { 1228 error = copyin(uap->tzp, &tz, sizeof(tz)); 1229 if (error) 1230 return (error); 1231 tzp = &tz; 1232 } else 1233 tzp = NULL; 1234 return (kern_settimeofday(td, tvp, tzp)); 1235 } 1236 1237 int 1238 freebsd32_utimes(struct thread *td, struct freebsd32_utimes_args *uap) 1239 { 1240 struct timeval32 s32[2]; 1241 struct timeval s[2], *sp; 1242 int error; 1243 1244 if (uap->tptr != NULL) { 1245 error = copyin(uap->tptr, s32, sizeof(s32)); 1246 if (error) 1247 return (error); 1248 CP(s32[0], s[0], tv_sec); 1249 CP(s32[0], s[0], tv_usec); 1250 CP(s32[1], s[1], tv_sec); 1251 CP(s32[1], s[1], tv_usec); 1252 sp = s; 1253 } else 1254 sp = NULL; 1255 return (kern_utimesat(td, AT_FDCWD, uap->path, UIO_USERSPACE, 1256 sp, UIO_SYSSPACE)); 1257 } 1258 1259 int 1260 freebsd32_lutimes(struct thread *td, struct freebsd32_lutimes_args *uap) 1261 { 1262 struct timeval32 s32[2]; 1263 struct timeval s[2], *sp; 1264 int error; 1265 1266 if (uap->tptr != NULL) { 1267 error = copyin(uap->tptr, s32, sizeof(s32)); 1268 if (error) 1269 return (error); 1270 CP(s32[0], s[0], tv_sec); 1271 CP(s32[0], s[0], tv_usec); 1272 CP(s32[1], s[1], tv_sec); 1273 CP(s32[1], s[1], tv_usec); 1274 sp = s; 1275 } else 1276 sp = NULL; 1277 return (kern_lutimes(td, uap->path, UIO_USERSPACE, sp, UIO_SYSSPACE)); 1278 } 1279 1280 int 1281 freebsd32_futimes(struct thread *td, struct freebsd32_futimes_args *uap) 1282 { 1283 struct timeval32 s32[2]; 1284 struct timeval s[2], *sp; 1285 int error; 1286 1287 if (uap->tptr != NULL) { 1288 error = copyin(uap->tptr, s32, sizeof(s32)); 1289 if (error) 1290 return (error); 1291 CP(s32[0], s[0], tv_sec); 1292 CP(s32[0], s[0], tv_usec); 1293 CP(s32[1], s[1], tv_sec); 1294 CP(s32[1], s[1], tv_usec); 1295 sp = s; 1296 } else 1297 sp = NULL; 1298 return (kern_futimes(td, uap->fd, sp, UIO_SYSSPACE)); 1299 } 1300 1301 int 1302 freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap) 1303 { 1304 struct timeval32 s32[2]; 1305 struct timeval s[2], *sp; 1306 int error; 1307 1308 if (uap->times != NULL) { 1309 error = copyin(uap->times, s32, sizeof(s32)); 1310 if (error) 1311 return (error); 1312 CP(s32[0], s[0], tv_sec); 1313 CP(s32[0], s[0], tv_usec); 1314 CP(s32[1], s[1], tv_sec); 1315 CP(s32[1], s[1], tv_usec); 1316 sp = s; 1317 } else 1318 sp = NULL; 1319 return (kern_utimesat(td, uap->fd, uap->path, UIO_USERSPACE, 1320 sp, UIO_SYSSPACE)); 1321 } 1322 1323 int 1324 freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap) 1325 { 1326 struct timespec32 ts32[2]; 1327 struct timespec ts[2], *tsp; 1328 int error; 1329 1330 if (uap->times != NULL) { 1331 error = copyin(uap->times, ts32, sizeof(ts32)); 1332 if (error) 1333 return (error); 1334 CP(ts32[0], ts[0], tv_sec); 1335 CP(ts32[0], ts[0], tv_nsec); 1336 CP(ts32[1], ts[1], tv_sec); 1337 CP(ts32[1], ts[1], tv_nsec); 1338 tsp = ts; 1339 } else 1340 tsp = NULL; 1341 return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE)); 1342 } 1343 1344 int 1345 freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap) 1346 { 1347 struct timespec32 ts32[2]; 1348 struct timespec ts[2], *tsp; 1349 int error; 1350 1351 if (uap->times != NULL) { 1352 error = copyin(uap->times, ts32, sizeof(ts32)); 1353 if (error) 1354 return (error); 1355 CP(ts32[0], ts[0], tv_sec); 1356 CP(ts32[0], ts[0], tv_nsec); 1357 CP(ts32[1], ts[1], tv_sec); 1358 CP(ts32[1], ts[1], tv_nsec); 1359 tsp = ts; 1360 } else 1361 tsp = NULL; 1362 return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE, 1363 tsp, UIO_SYSSPACE, uap->flag)); 1364 } 1365 1366 int 1367 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap) 1368 { 1369 struct timeval32 tv32; 1370 struct timeval delta, olddelta, *deltap; 1371 int error; 1372 1373 if (uap->delta) { 1374 error = copyin(uap->delta, &tv32, sizeof(tv32)); 1375 if (error) 1376 return (error); 1377 CP(tv32, delta, tv_sec); 1378 CP(tv32, delta, tv_usec); 1379 deltap = δ 1380 } else 1381 deltap = NULL; 1382 error = kern_adjtime(td, deltap, &olddelta); 1383 if (uap->olddelta && error == 0) { 1384 CP(olddelta, tv32, tv_sec); 1385 CP(olddelta, tv32, tv_usec); 1386 error = copyout(&tv32, uap->olddelta, sizeof(tv32)); 1387 } 1388 return (error); 1389 } 1390 1391 #ifdef COMPAT_FREEBSD4 1392 int 1393 freebsd4_freebsd32_statfs(struct thread *td, struct freebsd4_freebsd32_statfs_args *uap) 1394 { 1395 struct statfs32 s32; 1396 struct statfs s; 1397 int error; 1398 1399 error = kern_statfs(td, uap->path, UIO_USERSPACE, &s); 1400 if (error) 1401 return (error); 1402 copy_statfs(&s, &s32); 1403 return (copyout(&s32, uap->buf, sizeof(s32))); 1404 } 1405 #endif 1406 1407 #ifdef COMPAT_FREEBSD4 1408 int 1409 freebsd4_freebsd32_fstatfs(struct thread *td, struct freebsd4_freebsd32_fstatfs_args *uap) 1410 { 1411 struct statfs32 s32; 1412 struct statfs s; 1413 int error; 1414 1415 error = kern_fstatfs(td, uap->fd, &s); 1416 if (error) 1417 return (error); 1418 copy_statfs(&s, &s32); 1419 return (copyout(&s32, uap->buf, sizeof(s32))); 1420 } 1421 #endif 1422 1423 #ifdef COMPAT_FREEBSD4 1424 int 1425 freebsd4_freebsd32_fhstatfs(struct thread *td, struct freebsd4_freebsd32_fhstatfs_args *uap) 1426 { 1427 struct statfs32 s32; 1428 struct statfs s; 1429 fhandle_t fh; 1430 int error; 1431 1432 if ((error = copyin(uap->u_fhp, &fh, sizeof(fhandle_t))) != 0) 1433 return (error); 1434 error = kern_fhstatfs(td, fh, &s); 1435 if (error) 1436 return (error); 1437 copy_statfs(&s, &s32); 1438 return (copyout(&s32, uap->buf, sizeof(s32))); 1439 } 1440 #endif 1441 1442 int 1443 freebsd32_pread(struct thread *td, struct freebsd32_pread_args *uap) 1444 { 1445 struct pread_args ap; 1446 1447 ap.fd = uap->fd; 1448 ap.buf = uap->buf; 1449 ap.nbyte = uap->nbyte; 1450 ap.offset = PAIR32TO64(off_t,uap->offset); 1451 return (sys_pread(td, &ap)); 1452 } 1453 1454 int 1455 freebsd32_pwrite(struct thread *td, struct freebsd32_pwrite_args *uap) 1456 { 1457 struct pwrite_args ap; 1458 1459 ap.fd = uap->fd; 1460 ap.buf = uap->buf; 1461 ap.nbyte = uap->nbyte; 1462 ap.offset = PAIR32TO64(off_t,uap->offset); 1463 return (sys_pwrite(td, &ap)); 1464 } 1465 1466 #ifdef COMPAT_43 1467 int 1468 ofreebsd32_lseek(struct thread *td, struct ofreebsd32_lseek_args *uap) 1469 { 1470 struct lseek_args nuap; 1471 1472 nuap.fd = uap->fd; 1473 nuap.offset = uap->offset; 1474 nuap.whence = uap->whence; 1475 return (sys_lseek(td, &nuap)); 1476 } 1477 #endif 1478 1479 int 1480 freebsd32_lseek(struct thread *td, struct freebsd32_lseek_args *uap) 1481 { 1482 int error; 1483 struct lseek_args ap; 1484 off_t pos; 1485 1486 ap.fd = uap->fd; 1487 ap.offset = PAIR32TO64(off_t,uap->offset); 1488 ap.whence = uap->whence; 1489 error = sys_lseek(td, &ap); 1490 /* Expand the quad return into two parts for eax and edx */ 1491 pos = td->td_uretoff.tdu_off; 1492 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1493 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1494 return error; 1495 } 1496 1497 int 1498 freebsd32_truncate(struct thread *td, struct freebsd32_truncate_args *uap) 1499 { 1500 struct truncate_args ap; 1501 1502 ap.path = uap->path; 1503 ap.length = PAIR32TO64(off_t,uap->length); 1504 return (sys_truncate(td, &ap)); 1505 } 1506 1507 int 1508 freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap) 1509 { 1510 struct ftruncate_args ap; 1511 1512 ap.fd = uap->fd; 1513 ap.length = PAIR32TO64(off_t,uap->length); 1514 return (sys_ftruncate(td, &ap)); 1515 } 1516 1517 #ifdef COMPAT_43 1518 int 1519 ofreebsd32_getdirentries(struct thread *td, 1520 struct ofreebsd32_getdirentries_args *uap) 1521 { 1522 struct ogetdirentries_args ap; 1523 int error; 1524 long loff; 1525 int32_t loff_cut; 1526 1527 ap.fd = uap->fd; 1528 ap.buf = uap->buf; 1529 ap.count = uap->count; 1530 ap.basep = NULL; 1531 error = kern_ogetdirentries(td, &ap, &loff); 1532 if (error == 0) { 1533 loff_cut = loff; 1534 error = copyout(&loff_cut, uap->basep, sizeof(int32_t)); 1535 } 1536 return (error); 1537 } 1538 #endif 1539 1540 int 1541 freebsd32_getdirentries(struct thread *td, 1542 struct freebsd32_getdirentries_args *uap) 1543 { 1544 long base; 1545 int32_t base32; 1546 int error; 1547 1548 error = kern_getdirentries(td, uap->fd, uap->buf, uap->count, &base, 1549 NULL, UIO_USERSPACE); 1550 if (error) 1551 return (error); 1552 if (uap->basep != NULL) { 1553 base32 = base; 1554 error = copyout(&base32, uap->basep, sizeof(int32_t)); 1555 } 1556 return (error); 1557 } 1558 1559 #ifdef COMPAT_FREEBSD6 1560 /* versions with the 'int pad' argument */ 1561 int 1562 freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap) 1563 { 1564 struct pread_args ap; 1565 1566 ap.fd = uap->fd; 1567 ap.buf = uap->buf; 1568 ap.nbyte = uap->nbyte; 1569 ap.offset = PAIR32TO64(off_t,uap->offset); 1570 return (sys_pread(td, &ap)); 1571 } 1572 1573 int 1574 freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap) 1575 { 1576 struct pwrite_args ap; 1577 1578 ap.fd = uap->fd; 1579 ap.buf = uap->buf; 1580 ap.nbyte = uap->nbyte; 1581 ap.offset = PAIR32TO64(off_t,uap->offset); 1582 return (sys_pwrite(td, &ap)); 1583 } 1584 1585 int 1586 freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap) 1587 { 1588 int error; 1589 struct lseek_args ap; 1590 off_t pos; 1591 1592 ap.fd = uap->fd; 1593 ap.offset = PAIR32TO64(off_t,uap->offset); 1594 ap.whence = uap->whence; 1595 error = sys_lseek(td, &ap); 1596 /* Expand the quad return into two parts for eax and edx */ 1597 pos = *(off_t *)(td->td_retval); 1598 td->td_retval[RETVAL_LO] = pos & 0xffffffff; /* %eax */ 1599 td->td_retval[RETVAL_HI] = pos >> 32; /* %edx */ 1600 return error; 1601 } 1602 1603 int 1604 freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap) 1605 { 1606 struct truncate_args ap; 1607 1608 ap.path = uap->path; 1609 ap.length = PAIR32TO64(off_t,uap->length); 1610 return (sys_truncate(td, &ap)); 1611 } 1612 1613 int 1614 freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap) 1615 { 1616 struct ftruncate_args ap; 1617 1618 ap.fd = uap->fd; 1619 ap.length = PAIR32TO64(off_t,uap->length); 1620 return (sys_ftruncate(td, &ap)); 1621 } 1622 #endif /* COMPAT_FREEBSD6 */ 1623 1624 struct sf_hdtr32 { 1625 uint32_t headers; 1626 int hdr_cnt; 1627 uint32_t trailers; 1628 int trl_cnt; 1629 }; 1630 1631 static int 1632 freebsd32_do_sendfile(struct thread *td, 1633 struct freebsd32_sendfile_args *uap, int compat) 1634 { 1635 struct sf_hdtr32 hdtr32; 1636 struct sf_hdtr hdtr; 1637 struct uio *hdr_uio, *trl_uio; 1638 struct file *fp; 1639 cap_rights_t rights; 1640 struct iovec32 *iov32; 1641 off_t offset, sbytes; 1642 int error; 1643 1644 offset = PAIR32TO64(off_t, uap->offset); 1645 if (offset < 0) 1646 return (EINVAL); 1647 1648 hdr_uio = trl_uio = NULL; 1649 1650 if (uap->hdtr != NULL) { 1651 error = copyin(uap->hdtr, &hdtr32, sizeof(hdtr32)); 1652 if (error) 1653 goto out; 1654 PTRIN_CP(hdtr32, hdtr, headers); 1655 CP(hdtr32, hdtr, hdr_cnt); 1656 PTRIN_CP(hdtr32, hdtr, trailers); 1657 CP(hdtr32, hdtr, trl_cnt); 1658 1659 if (hdtr.headers != NULL) { 1660 iov32 = PTRIN(hdtr32.headers); 1661 error = freebsd32_copyinuio(iov32, 1662 hdtr32.hdr_cnt, &hdr_uio); 1663 if (error) 1664 goto out; 1665 #ifdef COMPAT_FREEBSD4 1666 /* 1667 * In FreeBSD < 5.0 the nbytes to send also included 1668 * the header. If compat is specified subtract the 1669 * header size from nbytes. 1670 */ 1671 if (compat) { 1672 if (uap->nbytes > hdr_uio->uio_resid) 1673 uap->nbytes -= hdr_uio->uio_resid; 1674 else 1675 uap->nbytes = 0; 1676 } 1677 #endif 1678 } 1679 if (hdtr.trailers != NULL) { 1680 iov32 = PTRIN(hdtr32.trailers); 1681 error = freebsd32_copyinuio(iov32, 1682 hdtr32.trl_cnt, &trl_uio); 1683 if (error) 1684 goto out; 1685 } 1686 } 1687 1688 AUDIT_ARG_FD(uap->fd); 1689 1690 if ((error = fget_read(td, uap->fd, 1691 cap_rights_init(&rights, CAP_PREAD), &fp)) != 0) 1692 goto out; 1693 1694 error = fo_sendfile(fp, uap->s, hdr_uio, trl_uio, offset, 1695 uap->nbytes, &sbytes, uap->flags, td); 1696 fdrop(fp, td); 1697 1698 if (uap->sbytes != NULL) 1699 copyout(&sbytes, uap->sbytes, sizeof(off_t)); 1700 1701 out: 1702 if (hdr_uio) 1703 free(hdr_uio, M_IOV); 1704 if (trl_uio) 1705 free(trl_uio, M_IOV); 1706 return (error); 1707 } 1708 1709 #ifdef COMPAT_FREEBSD4 1710 int 1711 freebsd4_freebsd32_sendfile(struct thread *td, 1712 struct freebsd4_freebsd32_sendfile_args *uap) 1713 { 1714 return (freebsd32_do_sendfile(td, 1715 (struct freebsd32_sendfile_args *)uap, 1)); 1716 } 1717 #endif 1718 1719 int 1720 freebsd32_sendfile(struct thread *td, struct freebsd32_sendfile_args *uap) 1721 { 1722 1723 return (freebsd32_do_sendfile(td, uap, 0)); 1724 } 1725 1726 static void 1727 copy_stat(struct stat *in, struct stat32 *out) 1728 { 1729 1730 CP(*in, *out, st_dev); 1731 CP(*in, *out, st_ino); 1732 CP(*in, *out, st_mode); 1733 CP(*in, *out, st_nlink); 1734 CP(*in, *out, st_uid); 1735 CP(*in, *out, st_gid); 1736 CP(*in, *out, st_rdev); 1737 TS_CP(*in, *out, st_atim); 1738 TS_CP(*in, *out, st_mtim); 1739 TS_CP(*in, *out, st_ctim); 1740 CP(*in, *out, st_size); 1741 CP(*in, *out, st_blocks); 1742 CP(*in, *out, st_blksize); 1743 CP(*in, *out, st_flags); 1744 CP(*in, *out, st_gen); 1745 TS_CP(*in, *out, st_birthtim); 1746 } 1747 1748 #ifdef COMPAT_43 1749 static void 1750 copy_ostat(struct stat *in, struct ostat32 *out) 1751 { 1752 1753 CP(*in, *out, st_dev); 1754 CP(*in, *out, st_ino); 1755 CP(*in, *out, st_mode); 1756 CP(*in, *out, st_nlink); 1757 CP(*in, *out, st_uid); 1758 CP(*in, *out, st_gid); 1759 CP(*in, *out, st_rdev); 1760 CP(*in, *out, st_size); 1761 TS_CP(*in, *out, st_atim); 1762 TS_CP(*in, *out, st_mtim); 1763 TS_CP(*in, *out, st_ctim); 1764 CP(*in, *out, st_blksize); 1765 CP(*in, *out, st_blocks); 1766 CP(*in, *out, st_flags); 1767 CP(*in, *out, st_gen); 1768 } 1769 #endif 1770 1771 int 1772 freebsd32_stat(struct thread *td, struct freebsd32_stat_args *uap) 1773 { 1774 struct stat sb; 1775 struct stat32 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_stat(&sb, &sb32); 1783 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1784 return (error); 1785 } 1786 1787 #ifdef COMPAT_43 1788 int 1789 ofreebsd32_stat(struct thread *td, struct ofreebsd32_stat_args *uap) 1790 { 1791 struct stat sb; 1792 struct ostat32 sb32; 1793 int error; 1794 1795 error = kern_statat(td, 0, AT_FDCWD, uap->path, UIO_USERSPACE, 1796 &sb, NULL); 1797 if (error) 1798 return (error); 1799 copy_ostat(&sb, &sb32); 1800 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1801 return (error); 1802 } 1803 #endif 1804 1805 int 1806 freebsd32_fstat(struct thread *td, struct freebsd32_fstat_args *uap) 1807 { 1808 struct stat ub; 1809 struct stat32 ub32; 1810 int error; 1811 1812 error = kern_fstat(td, uap->fd, &ub); 1813 if (error) 1814 return (error); 1815 copy_stat(&ub, &ub32); 1816 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1817 return (error); 1818 } 1819 1820 #ifdef COMPAT_43 1821 int 1822 ofreebsd32_fstat(struct thread *td, struct ofreebsd32_fstat_args *uap) 1823 { 1824 struct stat ub; 1825 struct ostat32 ub32; 1826 int error; 1827 1828 error = kern_fstat(td, uap->fd, &ub); 1829 if (error) 1830 return (error); 1831 copy_ostat(&ub, &ub32); 1832 error = copyout(&ub32, uap->ub, sizeof(ub32)); 1833 return (error); 1834 } 1835 #endif 1836 1837 int 1838 freebsd32_fstatat(struct thread *td, struct freebsd32_fstatat_args *uap) 1839 { 1840 struct stat ub; 1841 struct stat32 ub32; 1842 int error; 1843 1844 error = kern_statat(td, uap->flag, uap->fd, uap->path, UIO_USERSPACE, 1845 &ub, NULL); 1846 if (error) 1847 return (error); 1848 copy_stat(&ub, &ub32); 1849 error = copyout(&ub32, uap->buf, sizeof(ub32)); 1850 return (error); 1851 } 1852 1853 int 1854 freebsd32_lstat(struct thread *td, struct freebsd32_lstat_args *uap) 1855 { 1856 struct stat sb; 1857 struct stat32 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_stat(&sb, &sb32); 1865 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1866 return (error); 1867 } 1868 1869 #ifdef COMPAT_43 1870 int 1871 ofreebsd32_lstat(struct thread *td, struct ofreebsd32_lstat_args *uap) 1872 { 1873 struct stat sb; 1874 struct ostat32 sb32; 1875 int error; 1876 1877 error = kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, uap->path, 1878 UIO_USERSPACE, &sb, NULL); 1879 if (error) 1880 return (error); 1881 copy_ostat(&sb, &sb32); 1882 error = copyout(&sb32, uap->ub, sizeof (sb32)); 1883 return (error); 1884 } 1885 #endif 1886 1887 int 1888 freebsd32_sysctl(struct thread *td, struct freebsd32_sysctl_args *uap) 1889 { 1890 int error, name[CTL_MAXNAME]; 1891 size_t j, oldlen; 1892 uint32_t tmp; 1893 1894 if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) 1895 return (EINVAL); 1896 error = copyin(uap->name, name, uap->namelen * sizeof(int)); 1897 if (error) 1898 return (error); 1899 if (uap->oldlenp) { 1900 error = fueword32(uap->oldlenp, &tmp); 1901 oldlen = tmp; 1902 } else { 1903 oldlen = 0; 1904 } 1905 if (error != 0) 1906 return (EFAULT); 1907 error = userland_sysctl(td, name, uap->namelen, 1908 uap->old, &oldlen, 1, 1909 uap->new, uap->newlen, &j, SCTL_MASK32); 1910 if (error && error != ENOMEM) 1911 return (error); 1912 if (uap->oldlenp) 1913 suword32(uap->oldlenp, j); 1914 return (0); 1915 } 1916 1917 int 1918 freebsd32_jail(struct thread *td, struct freebsd32_jail_args *uap) 1919 { 1920 uint32_t version; 1921 int error; 1922 struct jail j; 1923 1924 error = copyin(uap->jail, &version, sizeof(uint32_t)); 1925 if (error) 1926 return (error); 1927 1928 switch (version) { 1929 case 0: 1930 { 1931 /* FreeBSD single IPv4 jails. */ 1932 struct jail32_v0 j32_v0; 1933 1934 bzero(&j, sizeof(struct jail)); 1935 error = copyin(uap->jail, &j32_v0, sizeof(struct jail32_v0)); 1936 if (error) 1937 return (error); 1938 CP(j32_v0, j, version); 1939 PTRIN_CP(j32_v0, j, path); 1940 PTRIN_CP(j32_v0, j, hostname); 1941 j.ip4s = htonl(j32_v0.ip_number); /* jail_v0 is host order */ 1942 break; 1943 } 1944 1945 case 1: 1946 /* 1947 * Version 1 was used by multi-IPv4 jail implementations 1948 * that never made it into the official kernel. 1949 */ 1950 return (EINVAL); 1951 1952 case 2: /* JAIL_API_VERSION */ 1953 { 1954 /* FreeBSD multi-IPv4/IPv6,noIP jails. */ 1955 struct jail32 j32; 1956 1957 error = copyin(uap->jail, &j32, sizeof(struct jail32)); 1958 if (error) 1959 return (error); 1960 CP(j32, j, version); 1961 PTRIN_CP(j32, j, path); 1962 PTRIN_CP(j32, j, hostname); 1963 PTRIN_CP(j32, j, jailname); 1964 CP(j32, j, ip4s); 1965 CP(j32, j, ip6s); 1966 PTRIN_CP(j32, j, ip4); 1967 PTRIN_CP(j32, j, ip6); 1968 break; 1969 } 1970 1971 default: 1972 /* Sci-Fi jails are not supported, sorry. */ 1973 return (EINVAL); 1974 } 1975 return (kern_jail(td, &j)); 1976 } 1977 1978 int 1979 freebsd32_jail_set(struct thread *td, struct freebsd32_jail_set_args *uap) 1980 { 1981 struct uio *auio; 1982 int error; 1983 1984 /* Check that we have an even number of iovecs. */ 1985 if (uap->iovcnt & 1) 1986 return (EINVAL); 1987 1988 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 1989 if (error) 1990 return (error); 1991 error = kern_jail_set(td, auio, uap->flags); 1992 free(auio, M_IOV); 1993 return (error); 1994 } 1995 1996 int 1997 freebsd32_jail_get(struct thread *td, struct freebsd32_jail_get_args *uap) 1998 { 1999 struct iovec32 iov32; 2000 struct uio *auio; 2001 int error, i; 2002 2003 /* Check that we have an even number of iovecs. */ 2004 if (uap->iovcnt & 1) 2005 return (EINVAL); 2006 2007 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2008 if (error) 2009 return (error); 2010 error = kern_jail_get(td, auio, uap->flags); 2011 if (error == 0) 2012 for (i = 0; i < uap->iovcnt; i++) { 2013 PTROUT_CP(auio->uio_iov[i], iov32, iov_base); 2014 CP(auio->uio_iov[i], iov32, iov_len); 2015 error = copyout(&iov32, uap->iovp + i, sizeof(iov32)); 2016 if (error != 0) 2017 break; 2018 } 2019 free(auio, M_IOV); 2020 return (error); 2021 } 2022 2023 int 2024 freebsd32_sigaction(struct thread *td, struct freebsd32_sigaction_args *uap) 2025 { 2026 struct sigaction32 s32; 2027 struct sigaction sa, osa, *sap; 2028 int error; 2029 2030 if (uap->act) { 2031 error = copyin(uap->act, &s32, sizeof(s32)); 2032 if (error) 2033 return (error); 2034 sa.sa_handler = PTRIN(s32.sa_u); 2035 CP(s32, sa, sa_flags); 2036 CP(s32, sa, sa_mask); 2037 sap = &sa; 2038 } else 2039 sap = NULL; 2040 error = kern_sigaction(td, uap->sig, sap, &osa, 0); 2041 if (error == 0 && uap->oact != NULL) { 2042 s32.sa_u = PTROUT(osa.sa_handler); 2043 CP(osa, s32, sa_flags); 2044 CP(osa, s32, sa_mask); 2045 error = copyout(&s32, uap->oact, sizeof(s32)); 2046 } 2047 return (error); 2048 } 2049 2050 #ifdef COMPAT_FREEBSD4 2051 int 2052 freebsd4_freebsd32_sigaction(struct thread *td, 2053 struct freebsd4_freebsd32_sigaction_args *uap) 2054 { 2055 struct sigaction32 s32; 2056 struct sigaction sa, osa, *sap; 2057 int error; 2058 2059 if (uap->act) { 2060 error = copyin(uap->act, &s32, sizeof(s32)); 2061 if (error) 2062 return (error); 2063 sa.sa_handler = PTRIN(s32.sa_u); 2064 CP(s32, sa, sa_flags); 2065 CP(s32, sa, sa_mask); 2066 sap = &sa; 2067 } else 2068 sap = NULL; 2069 error = kern_sigaction(td, uap->sig, sap, &osa, KSA_FREEBSD4); 2070 if (error == 0 && uap->oact != NULL) { 2071 s32.sa_u = PTROUT(osa.sa_handler); 2072 CP(osa, s32, sa_flags); 2073 CP(osa, s32, sa_mask); 2074 error = copyout(&s32, uap->oact, sizeof(s32)); 2075 } 2076 return (error); 2077 } 2078 #endif 2079 2080 #ifdef COMPAT_43 2081 struct osigaction32 { 2082 u_int32_t sa_u; 2083 osigset_t sa_mask; 2084 int sa_flags; 2085 }; 2086 2087 #define ONSIG 32 2088 2089 int 2090 ofreebsd32_sigaction(struct thread *td, 2091 struct ofreebsd32_sigaction_args *uap) 2092 { 2093 struct osigaction32 s32; 2094 struct sigaction sa, osa, *sap; 2095 int error; 2096 2097 if (uap->signum <= 0 || uap->signum >= ONSIG) 2098 return (EINVAL); 2099 2100 if (uap->nsa) { 2101 error = copyin(uap->nsa, &s32, sizeof(s32)); 2102 if (error) 2103 return (error); 2104 sa.sa_handler = PTRIN(s32.sa_u); 2105 CP(s32, sa, sa_flags); 2106 OSIG2SIG(s32.sa_mask, sa.sa_mask); 2107 sap = &sa; 2108 } else 2109 sap = NULL; 2110 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2111 if (error == 0 && uap->osa != NULL) { 2112 s32.sa_u = PTROUT(osa.sa_handler); 2113 CP(osa, s32, sa_flags); 2114 SIG2OSIG(osa.sa_mask, s32.sa_mask); 2115 error = copyout(&s32, uap->osa, sizeof(s32)); 2116 } 2117 return (error); 2118 } 2119 2120 int 2121 ofreebsd32_sigprocmask(struct thread *td, 2122 struct ofreebsd32_sigprocmask_args *uap) 2123 { 2124 sigset_t set, oset; 2125 int error; 2126 2127 OSIG2SIG(uap->mask, set); 2128 error = kern_sigprocmask(td, uap->how, &set, &oset, SIGPROCMASK_OLD); 2129 SIG2OSIG(oset, td->td_retval[0]); 2130 return (error); 2131 } 2132 2133 int 2134 ofreebsd32_sigpending(struct thread *td, 2135 struct ofreebsd32_sigpending_args *uap) 2136 { 2137 struct proc *p = td->td_proc; 2138 sigset_t siglist; 2139 2140 PROC_LOCK(p); 2141 siglist = p->p_siglist; 2142 SIGSETOR(siglist, td->td_siglist); 2143 PROC_UNLOCK(p); 2144 SIG2OSIG(siglist, td->td_retval[0]); 2145 return (0); 2146 } 2147 2148 struct sigvec32 { 2149 u_int32_t sv_handler; 2150 int sv_mask; 2151 int sv_flags; 2152 }; 2153 2154 int 2155 ofreebsd32_sigvec(struct thread *td, 2156 struct ofreebsd32_sigvec_args *uap) 2157 { 2158 struct sigvec32 vec; 2159 struct sigaction sa, osa, *sap; 2160 int error; 2161 2162 if (uap->signum <= 0 || uap->signum >= ONSIG) 2163 return (EINVAL); 2164 2165 if (uap->nsv) { 2166 error = copyin(uap->nsv, &vec, sizeof(vec)); 2167 if (error) 2168 return (error); 2169 sa.sa_handler = PTRIN(vec.sv_handler); 2170 OSIG2SIG(vec.sv_mask, sa.sa_mask); 2171 sa.sa_flags = vec.sv_flags; 2172 sa.sa_flags ^= SA_RESTART; 2173 sap = &sa; 2174 } else 2175 sap = NULL; 2176 error = kern_sigaction(td, uap->signum, sap, &osa, KSA_OSIGSET); 2177 if (error == 0 && uap->osv != NULL) { 2178 vec.sv_handler = PTROUT(osa.sa_handler); 2179 SIG2OSIG(osa.sa_mask, vec.sv_mask); 2180 vec.sv_flags = osa.sa_flags; 2181 vec.sv_flags &= ~SA_NOCLDWAIT; 2182 vec.sv_flags ^= SA_RESTART; 2183 error = copyout(&vec, uap->osv, sizeof(vec)); 2184 } 2185 return (error); 2186 } 2187 2188 int 2189 ofreebsd32_sigblock(struct thread *td, 2190 struct ofreebsd32_sigblock_args *uap) 2191 { 2192 sigset_t set, oset; 2193 2194 OSIG2SIG(uap->mask, set); 2195 kern_sigprocmask(td, SIG_BLOCK, &set, &oset, 0); 2196 SIG2OSIG(oset, td->td_retval[0]); 2197 return (0); 2198 } 2199 2200 int 2201 ofreebsd32_sigsetmask(struct thread *td, 2202 struct ofreebsd32_sigsetmask_args *uap) 2203 { 2204 sigset_t set, oset; 2205 2206 OSIG2SIG(uap->mask, set); 2207 kern_sigprocmask(td, SIG_SETMASK, &set, &oset, 0); 2208 SIG2OSIG(oset, td->td_retval[0]); 2209 return (0); 2210 } 2211 2212 int 2213 ofreebsd32_sigsuspend(struct thread *td, 2214 struct ofreebsd32_sigsuspend_args *uap) 2215 { 2216 sigset_t mask; 2217 2218 OSIG2SIG(uap->mask, mask); 2219 return (kern_sigsuspend(td, mask)); 2220 } 2221 2222 struct sigstack32 { 2223 u_int32_t ss_sp; 2224 int ss_onstack; 2225 }; 2226 2227 int 2228 ofreebsd32_sigstack(struct thread *td, 2229 struct ofreebsd32_sigstack_args *uap) 2230 { 2231 struct sigstack32 s32; 2232 struct sigstack nss, oss; 2233 int error = 0, unss; 2234 2235 if (uap->nss != NULL) { 2236 error = copyin(uap->nss, &s32, sizeof(s32)); 2237 if (error) 2238 return (error); 2239 nss.ss_sp = PTRIN(s32.ss_sp); 2240 CP(s32, nss, ss_onstack); 2241 unss = 1; 2242 } else { 2243 unss = 0; 2244 } 2245 oss.ss_sp = td->td_sigstk.ss_sp; 2246 oss.ss_onstack = sigonstack(cpu_getstack(td)); 2247 if (unss) { 2248 td->td_sigstk.ss_sp = nss.ss_sp; 2249 td->td_sigstk.ss_size = 0; 2250 td->td_sigstk.ss_flags |= (nss.ss_onstack & SS_ONSTACK); 2251 td->td_pflags |= TDP_ALTSTACK; 2252 } 2253 if (uap->oss != NULL) { 2254 s32.ss_sp = PTROUT(oss.ss_sp); 2255 CP(oss, s32, ss_onstack); 2256 error = copyout(&s32, uap->oss, sizeof(s32)); 2257 } 2258 return (error); 2259 } 2260 #endif 2261 2262 int 2263 freebsd32_nanosleep(struct thread *td, struct freebsd32_nanosleep_args *uap) 2264 { 2265 struct timespec32 rmt32, rqt32; 2266 struct timespec rmt, rqt; 2267 int error; 2268 2269 error = copyin(uap->rqtp, &rqt32, sizeof(rqt32)); 2270 if (error) 2271 return (error); 2272 2273 CP(rqt32, rqt, tv_sec); 2274 CP(rqt32, rqt, tv_nsec); 2275 2276 if (uap->rmtp && 2277 !useracc((caddr_t)uap->rmtp, sizeof(rmt), VM_PROT_WRITE)) 2278 return (EFAULT); 2279 error = kern_nanosleep(td, &rqt, &rmt); 2280 if (error && uap->rmtp) { 2281 int error2; 2282 2283 CP(rmt, rmt32, tv_sec); 2284 CP(rmt, rmt32, tv_nsec); 2285 2286 error2 = copyout(&rmt32, uap->rmtp, sizeof(rmt32)); 2287 if (error2) 2288 error = error2; 2289 } 2290 return (error); 2291 } 2292 2293 int 2294 freebsd32_clock_gettime(struct thread *td, 2295 struct freebsd32_clock_gettime_args *uap) 2296 { 2297 struct timespec ats; 2298 struct timespec32 ats32; 2299 int error; 2300 2301 error = kern_clock_gettime(td, uap->clock_id, &ats); 2302 if (error == 0) { 2303 CP(ats, ats32, tv_sec); 2304 CP(ats, ats32, tv_nsec); 2305 error = copyout(&ats32, uap->tp, sizeof(ats32)); 2306 } 2307 return (error); 2308 } 2309 2310 int 2311 freebsd32_clock_settime(struct thread *td, 2312 struct freebsd32_clock_settime_args *uap) 2313 { 2314 struct timespec ats; 2315 struct timespec32 ats32; 2316 int error; 2317 2318 error = copyin(uap->tp, &ats32, sizeof(ats32)); 2319 if (error) 2320 return (error); 2321 CP(ats32, ats, tv_sec); 2322 CP(ats32, ats, tv_nsec); 2323 2324 return (kern_clock_settime(td, uap->clock_id, &ats)); 2325 } 2326 2327 int 2328 freebsd32_clock_getres(struct thread *td, 2329 struct freebsd32_clock_getres_args *uap) 2330 { 2331 struct timespec ts; 2332 struct timespec32 ts32; 2333 int error; 2334 2335 if (uap->tp == NULL) 2336 return (0); 2337 error = kern_clock_getres(td, uap->clock_id, &ts); 2338 if (error == 0) { 2339 CP(ts, ts32, tv_sec); 2340 CP(ts, ts32, tv_nsec); 2341 error = copyout(&ts32, uap->tp, sizeof(ts32)); 2342 } 2343 return (error); 2344 } 2345 2346 int freebsd32_ktimer_create(struct thread *td, 2347 struct freebsd32_ktimer_create_args *uap) 2348 { 2349 struct sigevent32 ev32; 2350 struct sigevent ev, *evp; 2351 int error, id; 2352 2353 if (uap->evp == NULL) { 2354 evp = NULL; 2355 } else { 2356 evp = &ev; 2357 error = copyin(uap->evp, &ev32, sizeof(ev32)); 2358 if (error != 0) 2359 return (error); 2360 error = convert_sigevent32(&ev32, &ev); 2361 if (error != 0) 2362 return (error); 2363 } 2364 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1); 2365 if (error == 0) { 2366 error = copyout(&id, uap->timerid, sizeof(int)); 2367 if (error != 0) 2368 kern_ktimer_delete(td, id); 2369 } 2370 return (error); 2371 } 2372 2373 int 2374 freebsd32_ktimer_settime(struct thread *td, 2375 struct freebsd32_ktimer_settime_args *uap) 2376 { 2377 struct itimerspec32 val32, oval32; 2378 struct itimerspec val, oval, *ovalp; 2379 int error; 2380 2381 error = copyin(uap->value, &val32, sizeof(val32)); 2382 if (error != 0) 2383 return (error); 2384 ITS_CP(val32, val); 2385 ovalp = uap->ovalue != NULL ? &oval : NULL; 2386 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp); 2387 if (error == 0 && uap->ovalue != NULL) { 2388 ITS_CP(oval, oval32); 2389 error = copyout(&oval32, uap->ovalue, sizeof(oval32)); 2390 } 2391 return (error); 2392 } 2393 2394 int 2395 freebsd32_ktimer_gettime(struct thread *td, 2396 struct freebsd32_ktimer_gettime_args *uap) 2397 { 2398 struct itimerspec32 val32; 2399 struct itimerspec val; 2400 int error; 2401 2402 error = kern_ktimer_gettime(td, uap->timerid, &val); 2403 if (error == 0) { 2404 ITS_CP(val, val32); 2405 error = copyout(&val32, uap->value, sizeof(val32)); 2406 } 2407 return (error); 2408 } 2409 2410 int 2411 freebsd32_clock_getcpuclockid2(struct thread *td, 2412 struct freebsd32_clock_getcpuclockid2_args *uap) 2413 { 2414 clockid_t clk_id; 2415 int error; 2416 2417 error = kern_clock_getcpuclockid2(td, PAIR32TO64(id_t, uap->id), 2418 uap->which, &clk_id); 2419 if (error == 0) 2420 error = copyout(&clk_id, uap->clock_id, sizeof(clockid_t)); 2421 return (error); 2422 } 2423 2424 int 2425 freebsd32_thr_new(struct thread *td, 2426 struct freebsd32_thr_new_args *uap) 2427 { 2428 struct thr_param32 param32; 2429 struct thr_param param; 2430 int error; 2431 2432 if (uap->param_size < 0 || 2433 uap->param_size > sizeof(struct thr_param32)) 2434 return (EINVAL); 2435 bzero(¶m, sizeof(struct thr_param)); 2436 bzero(¶m32, sizeof(struct thr_param32)); 2437 error = copyin(uap->param, ¶m32, uap->param_size); 2438 if (error != 0) 2439 return (error); 2440 param.start_func = PTRIN(param32.start_func); 2441 param.arg = PTRIN(param32.arg); 2442 param.stack_base = PTRIN(param32.stack_base); 2443 param.stack_size = param32.stack_size; 2444 param.tls_base = PTRIN(param32.tls_base); 2445 param.tls_size = param32.tls_size; 2446 param.child_tid = PTRIN(param32.child_tid); 2447 param.parent_tid = PTRIN(param32.parent_tid); 2448 param.flags = param32.flags; 2449 param.rtp = PTRIN(param32.rtp); 2450 param.spare[0] = PTRIN(param32.spare[0]); 2451 param.spare[1] = PTRIN(param32.spare[1]); 2452 param.spare[2] = PTRIN(param32.spare[2]); 2453 2454 return (kern_thr_new(td, ¶m)); 2455 } 2456 2457 int 2458 freebsd32_thr_suspend(struct thread *td, struct freebsd32_thr_suspend_args *uap) 2459 { 2460 struct timespec32 ts32; 2461 struct timespec ts, *tsp; 2462 int error; 2463 2464 error = 0; 2465 tsp = NULL; 2466 if (uap->timeout != NULL) { 2467 error = copyin((const void *)uap->timeout, (void *)&ts32, 2468 sizeof(struct timespec32)); 2469 if (error != 0) 2470 return (error); 2471 ts.tv_sec = ts32.tv_sec; 2472 ts.tv_nsec = ts32.tv_nsec; 2473 tsp = &ts; 2474 } 2475 return (kern_thr_suspend(td, tsp)); 2476 } 2477 2478 void 2479 siginfo_to_siginfo32(const siginfo_t *src, struct siginfo32 *dst) 2480 { 2481 bzero(dst, sizeof(*dst)); 2482 dst->si_signo = src->si_signo; 2483 dst->si_errno = src->si_errno; 2484 dst->si_code = src->si_code; 2485 dst->si_pid = src->si_pid; 2486 dst->si_uid = src->si_uid; 2487 dst->si_status = src->si_status; 2488 dst->si_addr = (uintptr_t)src->si_addr; 2489 dst->si_value.sival_int = src->si_value.sival_int; 2490 dst->si_timerid = src->si_timerid; 2491 dst->si_overrun = src->si_overrun; 2492 } 2493 2494 int 2495 freebsd32_sigtimedwait(struct thread *td, struct freebsd32_sigtimedwait_args *uap) 2496 { 2497 struct timespec32 ts32; 2498 struct timespec ts; 2499 struct timespec *timeout; 2500 sigset_t set; 2501 ksiginfo_t ksi; 2502 struct siginfo32 si32; 2503 int error; 2504 2505 if (uap->timeout) { 2506 error = copyin(uap->timeout, &ts32, sizeof(ts32)); 2507 if (error) 2508 return (error); 2509 ts.tv_sec = ts32.tv_sec; 2510 ts.tv_nsec = ts32.tv_nsec; 2511 timeout = &ts; 2512 } else 2513 timeout = NULL; 2514 2515 error = copyin(uap->set, &set, sizeof(set)); 2516 if (error) 2517 return (error); 2518 2519 error = kern_sigtimedwait(td, set, &ksi, timeout); 2520 if (error) 2521 return (error); 2522 2523 if (uap->info) { 2524 siginfo_to_siginfo32(&ksi.ksi_info, &si32); 2525 error = copyout(&si32, uap->info, sizeof(struct siginfo32)); 2526 } 2527 2528 if (error == 0) 2529 td->td_retval[0] = ksi.ksi_signo; 2530 return (error); 2531 } 2532 2533 /* 2534 * MPSAFE 2535 */ 2536 int 2537 freebsd32_sigwaitinfo(struct thread *td, struct freebsd32_sigwaitinfo_args *uap) 2538 { 2539 ksiginfo_t ksi; 2540 struct siginfo32 si32; 2541 sigset_t set; 2542 int error; 2543 2544 error = copyin(uap->set, &set, sizeof(set)); 2545 if (error) 2546 return (error); 2547 2548 error = kern_sigtimedwait(td, set, &ksi, NULL); 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 if (error == 0) 2557 td->td_retval[0] = ksi.ksi_signo; 2558 return (error); 2559 } 2560 2561 int 2562 freebsd32_cpuset_setid(struct thread *td, 2563 struct freebsd32_cpuset_setid_args *uap) 2564 { 2565 struct cpuset_setid_args ap; 2566 2567 ap.which = uap->which; 2568 ap.id = PAIR32TO64(id_t,uap->id); 2569 ap.setid = uap->setid; 2570 2571 return (sys_cpuset_setid(td, &ap)); 2572 } 2573 2574 int 2575 freebsd32_cpuset_getid(struct thread *td, 2576 struct freebsd32_cpuset_getid_args *uap) 2577 { 2578 struct cpuset_getid_args ap; 2579 2580 ap.level = uap->level; 2581 ap.which = uap->which; 2582 ap.id = PAIR32TO64(id_t,uap->id); 2583 ap.setid = uap->setid; 2584 2585 return (sys_cpuset_getid(td, &ap)); 2586 } 2587 2588 int 2589 freebsd32_cpuset_getaffinity(struct thread *td, 2590 struct freebsd32_cpuset_getaffinity_args *uap) 2591 { 2592 struct cpuset_getaffinity_args ap; 2593 2594 ap.level = uap->level; 2595 ap.which = uap->which; 2596 ap.id = PAIR32TO64(id_t,uap->id); 2597 ap.cpusetsize = uap->cpusetsize; 2598 ap.mask = uap->mask; 2599 2600 return (sys_cpuset_getaffinity(td, &ap)); 2601 } 2602 2603 int 2604 freebsd32_cpuset_setaffinity(struct thread *td, 2605 struct freebsd32_cpuset_setaffinity_args *uap) 2606 { 2607 struct cpuset_setaffinity_args ap; 2608 2609 ap.level = uap->level; 2610 ap.which = uap->which; 2611 ap.id = PAIR32TO64(id_t,uap->id); 2612 ap.cpusetsize = uap->cpusetsize; 2613 ap.mask = uap->mask; 2614 2615 return (sys_cpuset_setaffinity(td, &ap)); 2616 } 2617 2618 int 2619 freebsd32_nmount(struct thread *td, 2620 struct freebsd32_nmount_args /* { 2621 struct iovec *iovp; 2622 unsigned int iovcnt; 2623 int flags; 2624 } */ *uap) 2625 { 2626 struct uio *auio; 2627 uint64_t flags; 2628 int error; 2629 2630 /* 2631 * Mount flags are now 64-bits. On 32-bit archtectures only 2632 * 32-bits are passed in, but from here on everything handles 2633 * 64-bit flags correctly. 2634 */ 2635 flags = uap->flags; 2636 2637 AUDIT_ARG_FFLAGS(flags); 2638 2639 /* 2640 * Filter out MNT_ROOTFS. We do not want clients of nmount() in 2641 * userspace to set this flag, but we must filter it out if we want 2642 * MNT_UPDATE on the root file system to work. 2643 * MNT_ROOTFS should only be set by the kernel when mounting its 2644 * root file system. 2645 */ 2646 flags &= ~MNT_ROOTFS; 2647 2648 /* 2649 * check that we have an even number of iovec's 2650 * and that we have at least two options. 2651 */ 2652 if ((uap->iovcnt & 1) || (uap->iovcnt < 4)) 2653 return (EINVAL); 2654 2655 error = freebsd32_copyinuio(uap->iovp, uap->iovcnt, &auio); 2656 if (error) 2657 return (error); 2658 error = vfs_donmount(td, flags, auio); 2659 2660 free(auio, M_IOV); 2661 return error; 2662 } 2663 2664 #if 0 2665 int 2666 freebsd32_xxx(struct thread *td, struct freebsd32_xxx_args *uap) 2667 { 2668 struct yyy32 *p32, s32; 2669 struct yyy *p = NULL, s; 2670 struct xxx_arg ap; 2671 int error; 2672 2673 if (uap->zzz) { 2674 error = copyin(uap->zzz, &s32, sizeof(s32)); 2675 if (error) 2676 return (error); 2677 /* translate in */ 2678 p = &s; 2679 } 2680 error = kern_xxx(td, p); 2681 if (error) 2682 return (error); 2683 if (uap->zzz) { 2684 /* translate out */ 2685 error = copyout(&s32, p32, sizeof(s32)); 2686 } 2687 return (error); 2688 } 2689 #endif 2690 2691 int 2692 syscall32_register(int *offset, struct sysent *new_sysent, 2693 struct sysent *old_sysent, int flags) 2694 { 2695 2696 if ((flags & ~SY_THR_STATIC) != 0) 2697 return (EINVAL); 2698 2699 if (*offset == NO_SYSCALL) { 2700 int i; 2701 2702 for (i = 1; i < SYS_MAXSYSCALL; ++i) 2703 if (freebsd32_sysent[i].sy_call == 2704 (sy_call_t *)lkmnosys) 2705 break; 2706 if (i == SYS_MAXSYSCALL) 2707 return (ENFILE); 2708 *offset = i; 2709 } else if (*offset < 0 || *offset >= SYS_MAXSYSCALL) 2710 return (EINVAL); 2711 else if (freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmnosys && 2712 freebsd32_sysent[*offset].sy_call != (sy_call_t *)lkmressys) 2713 return (EEXIST); 2714 2715 *old_sysent = freebsd32_sysent[*offset]; 2716 freebsd32_sysent[*offset] = *new_sysent; 2717 atomic_store_rel_32(&freebsd32_sysent[*offset].sy_thrcnt, flags); 2718 return (0); 2719 } 2720 2721 int 2722 syscall32_deregister(int *offset, struct sysent *old_sysent) 2723 { 2724 2725 if (*offset == 0) 2726 return (0); 2727 2728 freebsd32_sysent[*offset] = *old_sysent; 2729 return (0); 2730 } 2731 2732 int 2733 syscall32_module_handler(struct module *mod, int what, void *arg) 2734 { 2735 struct syscall_module_data *data = (struct syscall_module_data*)arg; 2736 modspecific_t ms; 2737 int error; 2738 2739 switch (what) { 2740 case MOD_LOAD: 2741 error = syscall32_register(data->offset, data->new_sysent, 2742 &data->old_sysent, SY_THR_STATIC_KLD); 2743 if (error) { 2744 /* Leave a mark so we know to safely unload below. */ 2745 data->offset = NULL; 2746 return error; 2747 } 2748 ms.intval = *data->offset; 2749 MOD_XLOCK; 2750 module_setspecific(mod, &ms); 2751 MOD_XUNLOCK; 2752 if (data->chainevh) 2753 error = data->chainevh(mod, what, data->chainarg); 2754 return (error); 2755 case MOD_UNLOAD: 2756 /* 2757 * MOD_LOAD failed, so just return without calling the 2758 * chained handler since we didn't pass along the MOD_LOAD 2759 * event. 2760 */ 2761 if (data->offset == NULL) 2762 return (0); 2763 if (data->chainevh) { 2764 error = data->chainevh(mod, what, data->chainarg); 2765 if (error) 2766 return (error); 2767 } 2768 error = syscall32_deregister(data->offset, &data->old_sysent); 2769 return (error); 2770 default: 2771 error = EOPNOTSUPP; 2772 if (data->chainevh) 2773 error = data->chainevh(mod, what, data->chainarg); 2774 return (error); 2775 } 2776 } 2777 2778 int 2779 syscall32_helper_register(struct syscall_helper_data *sd, int flags) 2780 { 2781 struct syscall_helper_data *sd1; 2782 int error; 2783 2784 for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) { 2785 error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent, 2786 &sd1->old_sysent, flags); 2787 if (error != 0) { 2788 syscall32_helper_unregister(sd); 2789 return (error); 2790 } 2791 sd1->registered = 1; 2792 } 2793 return (0); 2794 } 2795 2796 int 2797 syscall32_helper_unregister(struct syscall_helper_data *sd) 2798 { 2799 struct syscall_helper_data *sd1; 2800 2801 for (sd1 = sd; sd1->registered != 0; sd1++) { 2802 syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent); 2803 sd1->registered = 0; 2804 } 2805 return (0); 2806 } 2807 2808 register_t * 2809 freebsd32_copyout_strings(struct image_params *imgp) 2810 { 2811 int argc, envc, i; 2812 u_int32_t *vectp; 2813 char *stringp; 2814 uintptr_t destp; 2815 u_int32_t *stack_base; 2816 struct freebsd32_ps_strings *arginfo; 2817 char canary[sizeof(long) * 8]; 2818 int32_t pagesizes32[MAXPAGESIZES]; 2819 size_t execpath_len; 2820 int szsigcode; 2821 2822 /* 2823 * Calculate string base and vector table pointers. 2824 * Also deal with signal trampoline code for this exec type. 2825 */ 2826 if (imgp->execpath != NULL && imgp->auxargs != NULL) 2827 execpath_len = strlen(imgp->execpath) + 1; 2828 else 2829 execpath_len = 0; 2830 arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent-> 2831 sv_psstrings; 2832 if (imgp->proc->p_sysent->sv_sigcode_base == 0) 2833 szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); 2834 else 2835 szsigcode = 0; 2836 destp = (uintptr_t)arginfo; 2837 2838 /* 2839 * install sigcode 2840 */ 2841 if (szsigcode != 0) { 2842 destp -= szsigcode; 2843 destp = rounddown2(destp, sizeof(uint32_t)); 2844 copyout(imgp->proc->p_sysent->sv_sigcode, (void *)destp, 2845 szsigcode); 2846 } 2847 2848 /* 2849 * Copy the image path for the rtld. 2850 */ 2851 if (execpath_len != 0) { 2852 destp -= execpath_len; 2853 imgp->execpathp = destp; 2854 copyout(imgp->execpath, (void *)destp, execpath_len); 2855 } 2856 2857 /* 2858 * Prepare the canary for SSP. 2859 */ 2860 arc4rand(canary, sizeof(canary), 0); 2861 destp -= sizeof(canary); 2862 imgp->canary = destp; 2863 copyout(canary, (void *)destp, sizeof(canary)); 2864 imgp->canarylen = sizeof(canary); 2865 2866 /* 2867 * Prepare the pagesizes array. 2868 */ 2869 for (i = 0; i < MAXPAGESIZES; i++) 2870 pagesizes32[i] = (uint32_t)pagesizes[i]; 2871 destp -= sizeof(pagesizes32); 2872 destp = rounddown2(destp, sizeof(uint32_t)); 2873 imgp->pagesizes = destp; 2874 copyout(pagesizes32, (void *)destp, sizeof(pagesizes32)); 2875 imgp->pagesizeslen = sizeof(pagesizes32); 2876 2877 destp -= ARG_MAX - imgp->args->stringspace; 2878 destp = rounddown2(destp, sizeof(uint32_t)); 2879 2880 /* 2881 * If we have a valid auxargs ptr, prepare some room 2882 * on the stack. 2883 */ 2884 if (imgp->auxargs) { 2885 /* 2886 * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for 2887 * lower compatibility. 2888 */ 2889 imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size 2890 : (AT_COUNT * 2); 2891 /* 2892 * The '+ 2' is for the null pointers at the end of each of 2893 * the arg and env vector sets,and imgp->auxarg_size is room 2894 * for argument of Runtime loader. 2895 */ 2896 vectp = (u_int32_t *) (destp - (imgp->args->argc + 2897 imgp->args->envc + 2 + imgp->auxarg_size + execpath_len) * 2898 sizeof(u_int32_t)); 2899 } else { 2900 /* 2901 * The '+ 2' is for the null pointers at the end of each of 2902 * the arg and env vector sets 2903 */ 2904 vectp = (u_int32_t *)(destp - (imgp->args->argc + 2905 imgp->args->envc + 2) * sizeof(u_int32_t)); 2906 } 2907 2908 /* 2909 * vectp also becomes our initial stack base 2910 */ 2911 stack_base = vectp; 2912 2913 stringp = imgp->args->begin_argv; 2914 argc = imgp->args->argc; 2915 envc = imgp->args->envc; 2916 /* 2917 * Copy out strings - arguments and environment. 2918 */ 2919 copyout(stringp, (void *)destp, ARG_MAX - imgp->args->stringspace); 2920 2921 /* 2922 * Fill in "ps_strings" struct for ps, w, etc. 2923 */ 2924 suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); 2925 suword32(&arginfo->ps_nargvstr, argc); 2926 2927 /* 2928 * Fill in argument portion of vector table. 2929 */ 2930 for (; argc > 0; --argc) { 2931 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2932 while (*stringp++ != 0) 2933 destp++; 2934 destp++; 2935 } 2936 2937 /* a null vector table pointer separates the argp's from the envp's */ 2938 suword32(vectp++, 0); 2939 2940 suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); 2941 suword32(&arginfo->ps_nenvstr, envc); 2942 2943 /* 2944 * Fill in environment portion of vector table. 2945 */ 2946 for (; envc > 0; --envc) { 2947 suword32(vectp++, (u_int32_t)(intptr_t)destp); 2948 while (*stringp++ != 0) 2949 destp++; 2950 destp++; 2951 } 2952 2953 /* end of vector table is a null pointer */ 2954 suword32(vectp, 0); 2955 2956 return ((register_t *)stack_base); 2957 } 2958 2959 int 2960 freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap) 2961 { 2962 struct kld_file_stat *stat; 2963 struct kld32_file_stat *stat32; 2964 int error, version; 2965 2966 if ((error = copyin(&uap->stat->version, &version, sizeof(version))) 2967 != 0) 2968 return (error); 2969 if (version != sizeof(struct kld32_file_stat_1) && 2970 version != sizeof(struct kld32_file_stat)) 2971 return (EINVAL); 2972 2973 stat = malloc(sizeof(*stat), M_TEMP, M_WAITOK | M_ZERO); 2974 stat32 = malloc(sizeof(*stat32), M_TEMP, M_WAITOK | M_ZERO); 2975 error = kern_kldstat(td, uap->fileid, stat); 2976 if (error == 0) { 2977 bcopy(&stat->name[0], &stat32->name[0], sizeof(stat->name)); 2978 CP(*stat, *stat32, refs); 2979 CP(*stat, *stat32, id); 2980 PTROUT_CP(*stat, *stat32, address); 2981 CP(*stat, *stat32, size); 2982 bcopy(&stat->pathname[0], &stat32->pathname[0], 2983 sizeof(stat->pathname)); 2984 error = copyout(stat32, uap->stat, version); 2985 } 2986 free(stat, M_TEMP); 2987 free(stat32, M_TEMP); 2988 return (error); 2989 } 2990 2991 int 2992 freebsd32_posix_fallocate(struct thread *td, 2993 struct freebsd32_posix_fallocate_args *uap) 2994 { 2995 int error; 2996 2997 error = kern_posix_fallocate(td, uap->fd, 2998 PAIR32TO64(off_t, uap->offset), PAIR32TO64(off_t, uap->len)); 2999 return (kern_posix_error(td, error)); 3000 } 3001 3002 int 3003 freebsd32_posix_fadvise(struct thread *td, 3004 struct freebsd32_posix_fadvise_args *uap) 3005 { 3006 int error; 3007 3008 error = kern_posix_fadvise(td, uap->fd, PAIR32TO64(off_t, uap->offset), 3009 PAIR32TO64(off_t, uap->len), uap->advice); 3010 return (kern_posix_error(td, error)); 3011 } 3012 3013 int 3014 convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 3015 { 3016 3017 CP(*sig32, *sig, sigev_notify); 3018 switch (sig->sigev_notify) { 3019 case SIGEV_NONE: 3020 break; 3021 case SIGEV_THREAD_ID: 3022 CP(*sig32, *sig, sigev_notify_thread_id); 3023 /* FALLTHROUGH */ 3024 case SIGEV_SIGNAL: 3025 CP(*sig32, *sig, sigev_signo); 3026 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3027 break; 3028 case SIGEV_KEVENT: 3029 CP(*sig32, *sig, sigev_notify_kqueue); 3030 CP(*sig32, *sig, sigev_notify_kevent_flags); 3031 PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 3032 break; 3033 default: 3034 return (EINVAL); 3035 } 3036 return (0); 3037 } 3038 3039 int 3040 freebsd32_procctl(struct thread *td, struct freebsd32_procctl_args *uap) 3041 { 3042 void *data; 3043 union { 3044 struct procctl_reaper_status rs; 3045 struct procctl_reaper_pids rp; 3046 struct procctl_reaper_kill rk; 3047 } x; 3048 union { 3049 struct procctl_reaper_pids32 rp; 3050 } x32; 3051 int error, error1, flags; 3052 3053 switch (uap->com) { 3054 case PROC_SPROTECT: 3055 case PROC_TRACE_CTL: 3056 error = copyin(PTRIN(uap->data), &flags, sizeof(flags)); 3057 if (error != 0) 3058 return (error); 3059 data = &flags; 3060 break; 3061 case PROC_REAP_ACQUIRE: 3062 case PROC_REAP_RELEASE: 3063 if (uap->data != NULL) 3064 return (EINVAL); 3065 data = NULL; 3066 break; 3067 case PROC_REAP_STATUS: 3068 data = &x.rs; 3069 break; 3070 case PROC_REAP_GETPIDS: 3071 error = copyin(uap->data, &x32.rp, sizeof(x32.rp)); 3072 if (error != 0) 3073 return (error); 3074 CP(x32.rp, x.rp, rp_count); 3075 PTRIN_CP(x32.rp, x.rp, rp_pids); 3076 data = &x.rp; 3077 break; 3078 case PROC_REAP_KILL: 3079 error = copyin(uap->data, &x.rk, sizeof(x.rk)); 3080 if (error != 0) 3081 return (error); 3082 data = &x.rk; 3083 break; 3084 case PROC_TRACE_STATUS: 3085 data = &flags; 3086 break; 3087 default: 3088 return (EINVAL); 3089 } 3090 error = kern_procctl(td, uap->idtype, PAIR32TO64(id_t, uap->id), 3091 uap->com, data); 3092 switch (uap->com) { 3093 case PROC_REAP_STATUS: 3094 if (error == 0) 3095 error = copyout(&x.rs, uap->data, sizeof(x.rs)); 3096 break; 3097 case PROC_REAP_KILL: 3098 error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); 3099 if (error == 0) 3100 error = error1; 3101 break; 3102 case PROC_TRACE_STATUS: 3103 if (error == 0) 3104 error = copyout(&flags, uap->data, sizeof(flags)); 3105 break; 3106 } 3107 return (error); 3108 } 3109 3110 int 3111 freebsd32_fcntl(struct thread *td, struct freebsd32_fcntl_args *uap) 3112 { 3113 long tmp; 3114 3115 switch (uap->cmd) { 3116 /* 3117 * Do unsigned conversion for arg when operation 3118 * interprets it as flags or pointer. 3119 */ 3120 case F_SETLK_REMOTE: 3121 case F_SETLKW: 3122 case F_SETLK: 3123 case F_GETLK: 3124 case F_SETFD: 3125 case F_SETFL: 3126 case F_OGETLK: 3127 case F_OSETLK: 3128 case F_OSETLKW: 3129 tmp = (unsigned int)(uap->arg); 3130 break; 3131 default: 3132 tmp = uap->arg; 3133 break; 3134 } 3135 return (kern_fcntl_freebsd(td, uap->fd, uap->cmd, tmp)); 3136 } 3137 3138 int 3139 freebsd32_ppoll(struct thread *td, struct freebsd32_ppoll_args *uap) 3140 { 3141 struct timespec32 ts32; 3142 struct timespec ts, *tsp; 3143 sigset_t set, *ssp; 3144 int error; 3145 3146 if (uap->ts != NULL) { 3147 error = copyin(uap->ts, &ts32, sizeof(ts32)); 3148 if (error != 0) 3149 return (error); 3150 CP(ts32, ts, tv_sec); 3151 CP(ts32, ts, tv_nsec); 3152 tsp = &ts; 3153 } else 3154 tsp = NULL; 3155 if (uap->set != NULL) { 3156 error = copyin(uap->set, &set, sizeof(set)); 3157 if (error != 0) 3158 return (error); 3159 ssp = &set; 3160 } else 3161 ssp = NULL; 3162 3163 return (kern_poll(td, uap->fds, uap->nfds, tsp, ssp)); 3164 }
Cache object: f62de1ec46bbdb23f1006213d09c672c
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