1 /*- 2 * Copyright (c) 1994-1995 S�ren Schmidt 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 * in this position and unchanged. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include "opt_compat.h" 33 #include "opt_mac.h" 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/conf.h> 38 #include <sys/dirent.h> 39 #include <sys/fcntl.h> 40 #include <sys/file.h> 41 #include <sys/filedesc.h> 42 #include <sys/lock.h> 43 #include <sys/malloc.h> 44 #include <sys/mount.h> 45 #include <sys/mutex.h> 46 #include <sys/namei.h> 47 #include <sys/proc.h> 48 #include <sys/stat.h> 49 #include <sys/sx.h> 50 #include <sys/syscallsubr.h> 51 #include <sys/sysproto.h> 52 #include <sys/tty.h> 53 #include <sys/unistd.h> 54 #include <sys/vnode.h> 55 56 #include <security/mac/mac_framework.h> 57 58 #include <ufs/ufs/extattr.h> 59 #include <ufs/ufs/quota.h> 60 #include <ufs/ufs/ufsmount.h> 61 62 #ifdef COMPAT_LINUX32 63 #include <machine/../linux32/linux.h> 64 #include <machine/../linux32/linux32_proto.h> 65 #else 66 #include <machine/../linux/linux.h> 67 #include <machine/../linux/linux_proto.h> 68 #endif 69 #include <compat/linux/linux_util.h> 70 #include <compat/linux/linux_file.h> 71 72 int 73 linux_creat(struct thread *td, struct linux_creat_args *args) 74 { 75 char *path; 76 int error; 77 78 LCONVPATHEXIST(td, args->path, &path); 79 80 #ifdef DEBUG 81 if (ldebug(creat)) 82 printf(ARGS(creat, "%s, %d"), path, args->mode); 83 #endif 84 error = kern_open(td, path, UIO_SYSSPACE, O_WRONLY | O_CREAT | O_TRUNC, 85 args->mode); 86 LFREEPATH(path); 87 return (error); 88 } 89 90 91 static int 92 linux_common_open(struct thread *td, int dirfd, char *path, int l_flags, int mode) 93 { 94 struct proc *p = td->td_proc; 95 struct file *fp; 96 int fd; 97 int bsd_flags, error; 98 99 bsd_flags = 0; 100 switch (l_flags & LINUX_O_ACCMODE) { 101 case LINUX_O_WRONLY: 102 bsd_flags |= O_WRONLY; 103 break; 104 case LINUX_O_RDWR: 105 bsd_flags |= O_RDWR; 106 break; 107 default: 108 bsd_flags |= O_RDONLY; 109 } 110 if (l_flags & LINUX_O_NDELAY) 111 bsd_flags |= O_NONBLOCK; 112 if (l_flags & LINUX_O_APPEND) 113 bsd_flags |= O_APPEND; 114 if (l_flags & LINUX_O_SYNC) 115 bsd_flags |= O_FSYNC; 116 if (l_flags & LINUX_O_NONBLOCK) 117 bsd_flags |= O_NONBLOCK; 118 if (l_flags & LINUX_FASYNC) 119 bsd_flags |= O_ASYNC; 120 if (l_flags & LINUX_O_CREAT) 121 bsd_flags |= O_CREAT; 122 if (l_flags & LINUX_O_TRUNC) 123 bsd_flags |= O_TRUNC; 124 if (l_flags & LINUX_O_EXCL) 125 bsd_flags |= O_EXCL; 126 if (l_flags & LINUX_O_NOCTTY) 127 bsd_flags |= O_NOCTTY; 128 if (l_flags & LINUX_O_DIRECT) 129 bsd_flags |= O_DIRECT; 130 if (l_flags & LINUX_O_NOFOLLOW) 131 bsd_flags |= O_NOFOLLOW; 132 /* XXX LINUX_O_NOATIME: unable to be easily implemented. */ 133 134 error = kern_openat(td, dirfd, path, UIO_SYSSPACE, bsd_flags, mode); 135 136 if (!error) { 137 fd = td->td_retval[0]; 138 /* 139 * XXX In between kern_open() and fget(), another process 140 * having the same filedesc could use that fd without 141 * checking below. 142 */ 143 error = fget(td, fd, &fp); 144 if (!error) { 145 sx_slock(&proctree_lock); 146 PROC_LOCK(p); 147 if (!(bsd_flags & O_NOCTTY) && 148 SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) { 149 PROC_UNLOCK(p); 150 sx_unlock(&proctree_lock); 151 if (fp->f_type == DTYPE_VNODE) 152 (void) fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0, 153 td->td_ucred, td); 154 } else { 155 PROC_UNLOCK(p); 156 sx_sunlock(&proctree_lock); 157 } 158 if (l_flags & LINUX_O_DIRECTORY) { 159 if (fp->f_type != DTYPE_VNODE || 160 fp->f_vnode->v_type != VDIR) { 161 error = ENOTDIR; 162 } 163 } 164 fdrop(fp, td); 165 /* 166 * XXX as above, fdrop()/kern_close() pair is racy. 167 */ 168 if (error) 169 kern_close(td, fd); 170 } 171 } 172 173 #ifdef DEBUG 174 if (ldebug(open)) 175 printf(LMSG("open returns error %d"), error); 176 #endif 177 LFREEPATH(path); 178 return (error); 179 } 180 181 int 182 linux_openat(struct thread *td, struct linux_openat_args *args) 183 { 184 char *path; 185 int dfd; 186 187 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 188 if (args->flags & LINUX_O_CREAT) 189 LCONVPATH_AT(td, args->filename, &path, 1, dfd); 190 else 191 LCONVPATH_AT(td, args->filename, &path, 0, dfd); 192 #ifdef DEBUG 193 if (ldebug(openat)) 194 printf(ARGS(openat, "%i, %s, 0x%x, 0x%x"), args->dfd, 195 path, args->flags, args->mode); 196 #endif 197 return (linux_common_open(td, dfd, path, args->flags, args->mode)); 198 } 199 200 int 201 linux_open(struct thread *td, struct linux_open_args *args) 202 { 203 char *path; 204 205 if (args->flags & LINUX_O_CREAT) 206 LCONVPATHCREAT(td, args->path, &path); 207 else 208 LCONVPATHEXIST(td, args->path, &path); 209 210 #ifdef DEBUG 211 if (ldebug(open)) 212 printf(ARGS(open, "%s, 0x%x, 0x%x"), 213 path, args->flags, args->mode); 214 #endif 215 216 return (linux_common_open(td, AT_FDCWD, path, args->flags, args->mode)); 217 } 218 219 int 220 linux_lseek(struct thread *td, struct linux_lseek_args *args) 221 { 222 223 struct lseek_args /* { 224 int fd; 225 int pad; 226 off_t offset; 227 int whence; 228 } */ tmp_args; 229 int error; 230 231 #ifdef DEBUG 232 if (ldebug(lseek)) 233 printf(ARGS(lseek, "%d, %ld, %d"), 234 args->fdes, (long)args->off, args->whence); 235 #endif 236 tmp_args.fd = args->fdes; 237 tmp_args.offset = (off_t)args->off; 238 tmp_args.whence = args->whence; 239 error = lseek(td, &tmp_args); 240 return error; 241 } 242 243 int 244 linux_llseek(struct thread *td, struct linux_llseek_args *args) 245 { 246 struct lseek_args bsd_args; 247 int error; 248 off_t off; 249 250 #ifdef DEBUG 251 if (ldebug(llseek)) 252 printf(ARGS(llseek, "%d, %d:%d, %d"), 253 args->fd, args->ohigh, args->olow, args->whence); 254 #endif 255 off = (args->olow) | (((off_t) args->ohigh) << 32); 256 257 bsd_args.fd = args->fd; 258 bsd_args.offset = off; 259 bsd_args.whence = args->whence; 260 261 if ((error = lseek(td, &bsd_args))) 262 return error; 263 264 if ((error = copyout(td->td_retval, args->res, sizeof (off_t)))) 265 return error; 266 267 td->td_retval[0] = 0; 268 return 0; 269 } 270 271 int 272 linux_readdir(struct thread *td, struct linux_readdir_args *args) 273 { 274 struct linux_getdents_args lda; 275 276 lda.fd = args->fd; 277 lda.dent = args->dent; 278 lda.count = 1; 279 return linux_getdents(td, &lda); 280 } 281 282 /* 283 * Note that linux_getdents(2) and linux_getdents64(2) have the same 284 * arguments. They only differ in the definition of struct dirent they 285 * operate on. We use this to common the code, with the exception of 286 * accessing struct dirent. Note that linux_readdir(2) is implemented 287 * by means of linux_getdents(2). In this case we never operate on 288 * struct dirent64 and thus don't need to handle it... 289 */ 290 291 struct l_dirent { 292 l_ulong d_ino; 293 l_off_t d_off; 294 l_ushort d_reclen; 295 char d_name[LINUX_NAME_MAX + 1]; 296 }; 297 298 struct l_dirent64 { 299 uint64_t d_ino; 300 int64_t d_off; 301 l_ushort d_reclen; 302 u_char d_type; 303 char d_name[LINUX_NAME_MAX + 1]; 304 }; 305 306 /* 307 * Linux uses the last byte in the dirent buffer to store d_type, 308 * at least glibc-2.7 requires it. That is why l_dirent is padded with 2 bytes. 309 */ 310 #define LINUX_RECLEN(namlen) \ 311 roundup((offsetof(struct l_dirent, d_name) + (namlen) + 2), \ 312 sizeof(l_ulong)) 313 314 #define LINUX_RECLEN64(namlen) \ 315 roundup((offsetof(struct l_dirent64, d_name) + (namlen) + 1), \ 316 sizeof(uint64_t)) 317 318 #define LINUX_MAXRECLEN max(LINUX_RECLEN(LINUX_NAME_MAX), \ 319 LINUX_RECLEN64(LINUX_NAME_MAX)) 320 #define LINUX_DIRBLKSIZ 512 321 322 static int 323 getdents_common(struct thread *td, struct linux_getdents64_args *args, 324 int is64bit) 325 { 326 struct dirent *bdp; 327 struct vnode *vp; 328 caddr_t inp, buf; /* BSD-format */ 329 int len, reclen; /* BSD-format */ 330 caddr_t outp; /* Linux-format */ 331 int resid, linuxreclen=0; /* Linux-format */ 332 caddr_t lbuf; /* Linux-format */ 333 struct file *fp; 334 struct uio auio; 335 struct iovec aiov; 336 off_t off; 337 struct l_dirent *linux_dirent; 338 struct l_dirent64 *linux_dirent64; 339 int buflen, error, eofflag, nbytes, justone; 340 u_long *cookies = NULL, *cookiep; 341 int ncookies, vfslocked; 342 343 nbytes = args->count; 344 if (nbytes == 1) { 345 /* readdir(2) case. Always struct dirent. */ 346 if (is64bit) 347 return (EINVAL); 348 nbytes = sizeof(*linux_dirent); 349 justone = 1; 350 } else 351 justone = 0; 352 353 if ((error = getvnode(td->td_proc->p_fd, args->fd, &fp)) != 0) 354 return (error); 355 356 if ((fp->f_flag & FREAD) == 0) { 357 fdrop(fp, td); 358 return (EBADF); 359 } 360 361 vp = fp->f_vnode; 362 vfslocked = VFS_LOCK_GIANT(vp->v_mount); 363 if (vp->v_type != VDIR) { 364 VFS_UNLOCK_GIANT(vfslocked); 365 fdrop(fp, td); 366 return (EINVAL); 367 } 368 369 off = fp->f_offset; 370 371 buflen = max(LINUX_DIRBLKSIZ, nbytes); 372 buflen = min(buflen, MAXBSIZE); 373 buf = malloc(buflen, M_TEMP, M_WAITOK); 374 lbuf = malloc(LINUX_MAXRECLEN, M_TEMP, M_WAITOK | M_ZERO); 375 vn_lock(vp, LK_SHARED | LK_RETRY); 376 377 again: 378 aiov.iov_base = buf; 379 aiov.iov_len = buflen; 380 auio.uio_iov = &aiov; 381 auio.uio_iovcnt = 1; 382 auio.uio_rw = UIO_READ; 383 auio.uio_segflg = UIO_SYSSPACE; 384 auio.uio_td = td; 385 auio.uio_resid = buflen; 386 auio.uio_offset = off; 387 388 if (cookies) { 389 free(cookies, M_TEMP); 390 cookies = NULL; 391 } 392 393 #ifdef MAC 394 /* 395 * Do directory search MAC check using non-cached credentials. 396 */ 397 if ((error = mac_vnode_check_readdir(td->td_ucred, vp))) 398 goto out; 399 #endif /* MAC */ 400 if ((error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies, 401 &cookies))) 402 goto out; 403 404 inp = buf; 405 outp = (caddr_t)args->dirent; 406 resid = nbytes; 407 if ((len = buflen - auio.uio_resid) <= 0) 408 goto eof; 409 410 cookiep = cookies; 411 412 if (cookies) { 413 /* 414 * When using cookies, the vfs has the option of reading from 415 * a different offset than that supplied (UFS truncates the 416 * offset to a block boundary to make sure that it never reads 417 * partway through a directory entry, even if the directory 418 * has been compacted). 419 */ 420 while (len > 0 && ncookies > 0 && *cookiep <= off) { 421 bdp = (struct dirent *) inp; 422 len -= bdp->d_reclen; 423 inp += bdp->d_reclen; 424 cookiep++; 425 ncookies--; 426 } 427 } 428 429 while (len > 0) { 430 if (cookiep && ncookies == 0) 431 break; 432 bdp = (struct dirent *) inp; 433 reclen = bdp->d_reclen; 434 if (reclen & 3) { 435 error = EFAULT; 436 goto out; 437 } 438 439 if (bdp->d_fileno == 0) { 440 inp += reclen; 441 if (cookiep) { 442 off = *cookiep++; 443 ncookies--; 444 } else 445 off += reclen; 446 447 len -= reclen; 448 continue; 449 } 450 451 linuxreclen = (is64bit) 452 ? LINUX_RECLEN64(bdp->d_namlen) 453 : LINUX_RECLEN(bdp->d_namlen); 454 455 if (reclen > len || resid < linuxreclen) { 456 outp++; 457 break; 458 } 459 460 if (justone) { 461 /* readdir(2) case. */ 462 linux_dirent = (struct l_dirent*)lbuf; 463 linux_dirent->d_ino = bdp->d_fileno; 464 linux_dirent->d_off = (l_off_t)linuxreclen; 465 linux_dirent->d_reclen = (l_ushort)bdp->d_namlen; 466 strlcpy(linux_dirent->d_name, bdp->d_name, 467 linuxreclen - offsetof(struct l_dirent, d_name)); 468 error = copyout(linux_dirent, outp, linuxreclen); 469 } 470 if (is64bit) { 471 linux_dirent64 = (struct l_dirent64*)lbuf; 472 linux_dirent64->d_ino = bdp->d_fileno; 473 linux_dirent64->d_off = (cookiep) 474 ? (l_off_t)*cookiep 475 : (l_off_t)(off + reclen); 476 linux_dirent64->d_reclen = (l_ushort)linuxreclen; 477 linux_dirent64->d_type = bdp->d_type; 478 strlcpy(linux_dirent64->d_name, bdp->d_name, 479 linuxreclen - offsetof(struct l_dirent64, d_name)); 480 error = copyout(linux_dirent64, outp, linuxreclen); 481 } else if (!justone) { 482 linux_dirent = (struct l_dirent*)lbuf; 483 linux_dirent->d_ino = bdp->d_fileno; 484 linux_dirent->d_off = (cookiep) 485 ? (l_off_t)*cookiep 486 : (l_off_t)(off + reclen); 487 linux_dirent->d_reclen = (l_ushort)linuxreclen; 488 /* 489 * Copy d_type to last byte of l_dirent buffer 490 */ 491 lbuf[linuxreclen-1] = bdp->d_type; 492 strlcpy(linux_dirent->d_name, bdp->d_name, 493 linuxreclen - offsetof(struct l_dirent, d_name)-1); 494 error = copyout(linux_dirent, outp, linuxreclen); 495 } 496 497 if (error) 498 goto out; 499 500 inp += reclen; 501 if (cookiep) { 502 off = *cookiep++; 503 ncookies--; 504 } else 505 off += reclen; 506 507 outp += linuxreclen; 508 resid -= linuxreclen; 509 len -= reclen; 510 if (justone) 511 break; 512 } 513 514 if (outp == (caddr_t)args->dirent) 515 goto again; 516 517 fp->f_offset = off; 518 if (justone) 519 nbytes = resid + linuxreclen; 520 521 eof: 522 td->td_retval[0] = nbytes - resid; 523 524 out: 525 if (cookies) 526 free(cookies, M_TEMP); 527 528 VOP_UNLOCK(vp, 0); 529 VFS_UNLOCK_GIANT(vfslocked); 530 fdrop(fp, td); 531 free(buf, M_TEMP); 532 free(lbuf, M_TEMP); 533 return (error); 534 } 535 536 int 537 linux_getdents(struct thread *td, struct linux_getdents_args *args) 538 { 539 540 #ifdef DEBUG 541 if (ldebug(getdents)) 542 printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count); 543 #endif 544 545 return (getdents_common(td, (struct linux_getdents64_args*)args, 0)); 546 } 547 548 int 549 linux_getdents64(struct thread *td, struct linux_getdents64_args *args) 550 { 551 552 #ifdef DEBUG 553 if (ldebug(getdents64)) 554 printf(ARGS(getdents64, "%d, *, %d"), args->fd, args->count); 555 #endif 556 557 return (getdents_common(td, args, 1)); 558 } 559 560 /* 561 * These exist mainly for hooks for doing /compat/linux translation. 562 */ 563 564 int 565 linux_access(struct thread *td, struct linux_access_args *args) 566 { 567 char *path; 568 int error; 569 570 /* linux convention */ 571 if (args->flags & ~(F_OK | X_OK | W_OK | R_OK)) 572 return (EINVAL); 573 574 LCONVPATHEXIST(td, args->path, &path); 575 576 #ifdef DEBUG 577 if (ldebug(access)) 578 printf(ARGS(access, "%s, %d"), path, args->flags); 579 #endif 580 error = kern_access(td, path, UIO_SYSSPACE, args->flags); 581 LFREEPATH(path); 582 583 return (error); 584 } 585 586 int 587 linux_faccessat(struct thread *td, struct linux_faccessat_args *args) 588 { 589 char *path; 590 int error, dfd; 591 592 /* linux convention */ 593 if (args->mode & ~(F_OK | X_OK | W_OK | R_OK)) 594 return (EINVAL); 595 596 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 597 LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 598 599 #ifdef DEBUG 600 if (ldebug(access)) 601 printf(ARGS(access, "%s, %d"), path, args->mode); 602 #endif 603 604 error = kern_accessat(td, dfd, path, UIO_SYSSPACE, 0 /* XXX */, 605 args->mode); 606 LFREEPATH(path); 607 608 return (error); 609 } 610 611 int 612 linux_unlink(struct thread *td, struct linux_unlink_args *args) 613 { 614 char *path; 615 int error; 616 struct stat st; 617 618 LCONVPATHEXIST(td, args->path, &path); 619 620 #ifdef DEBUG 621 if (ldebug(unlink)) 622 printf(ARGS(unlink, "%s"), path); 623 #endif 624 625 error = kern_unlink(td, path, UIO_SYSSPACE); 626 if (error == EPERM) 627 /* Introduce POSIX noncompliant behaviour of Linux */ 628 if (kern_stat(td, path, UIO_SYSSPACE, &st) == 0) 629 if (S_ISDIR(st.st_mode)) 630 error = EISDIR; 631 LFREEPATH(path); 632 return (error); 633 } 634 635 int 636 linux_unlinkat(struct thread *td, struct linux_unlinkat_args *args) 637 { 638 char *path; 639 int error, dfd; 640 struct stat st; 641 642 if (args->flag & ~LINUX_AT_REMOVEDIR) 643 return (EINVAL); 644 645 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 646 LCONVPATHEXIST_AT(td, args->pathname, &path, dfd); 647 648 #ifdef DEBUG 649 if (ldebug(unlinkat)) 650 printf(ARGS(unlinkat, "%s"), path); 651 #endif 652 653 if (args->flag & LINUX_AT_REMOVEDIR) 654 error = kern_rmdirat(td, dfd, path, UIO_SYSSPACE); 655 else 656 error = kern_unlinkat(td, dfd, path, UIO_SYSSPACE); 657 if (error == EPERM && !(args->flag & LINUX_AT_REMOVEDIR)) { 658 /* Introduce POSIX noncompliant behaviour of Linux */ 659 if (kern_statat(td, AT_SYMLINK_NOFOLLOW, dfd, path, 660 UIO_SYSSPACE, &st) == 0 && S_ISDIR(st.st_mode)) 661 error = EISDIR; 662 } 663 LFREEPATH(path); 664 return (error); 665 } 666 int 667 linux_chdir(struct thread *td, struct linux_chdir_args *args) 668 { 669 char *path; 670 int error; 671 672 LCONVPATHEXIST(td, args->path, &path); 673 674 #ifdef DEBUG 675 if (ldebug(chdir)) 676 printf(ARGS(chdir, "%s"), path); 677 #endif 678 error = kern_chdir(td, path, UIO_SYSSPACE); 679 LFREEPATH(path); 680 return (error); 681 } 682 683 int 684 linux_chmod(struct thread *td, struct linux_chmod_args *args) 685 { 686 char *path; 687 int error; 688 689 LCONVPATHEXIST(td, args->path, &path); 690 691 #ifdef DEBUG 692 if (ldebug(chmod)) 693 printf(ARGS(chmod, "%s, %d"), path, args->mode); 694 #endif 695 error = kern_chmod(td, path, UIO_SYSSPACE, args->mode); 696 LFREEPATH(path); 697 return (error); 698 } 699 700 int 701 linux_fchmodat(struct thread *td, struct linux_fchmodat_args *args) 702 { 703 char *path; 704 int error, dfd; 705 706 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 707 LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 708 709 #ifdef DEBUG 710 if (ldebug(fchmodat)) 711 printf(ARGS(fchmodat, "%s, %d"), path, args->mode); 712 #endif 713 714 error = kern_fchmodat(td, dfd, path, UIO_SYSSPACE, args->mode, 0); 715 LFREEPATH(path); 716 return (error); 717 } 718 719 int 720 linux_mkdir(struct thread *td, struct linux_mkdir_args *args) 721 { 722 char *path; 723 int error; 724 725 LCONVPATHCREAT(td, args->path, &path); 726 727 #ifdef DEBUG 728 if (ldebug(mkdir)) 729 printf(ARGS(mkdir, "%s, %d"), path, args->mode); 730 #endif 731 error = kern_mkdir(td, path, UIO_SYSSPACE, args->mode); 732 LFREEPATH(path); 733 return (error); 734 } 735 736 int 737 linux_mkdirat(struct thread *td, struct linux_mkdirat_args *args) 738 { 739 char *path; 740 int error, dfd; 741 742 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 743 LCONVPATHCREAT_AT(td, args->pathname, &path, dfd); 744 745 #ifdef DEBUG 746 if (ldebug(mkdirat)) 747 printf(ARGS(mkdirat, "%s, %d"), path, args->mode); 748 #endif 749 error = kern_mkdirat(td, dfd, path, UIO_SYSSPACE, args->mode); 750 LFREEPATH(path); 751 return (error); 752 } 753 754 int 755 linux_rmdir(struct thread *td, struct linux_rmdir_args *args) 756 { 757 char *path; 758 int error; 759 760 LCONVPATHEXIST(td, args->path, &path); 761 762 #ifdef DEBUG 763 if (ldebug(rmdir)) 764 printf(ARGS(rmdir, "%s"), path); 765 #endif 766 error = kern_rmdir(td, path, UIO_SYSSPACE); 767 LFREEPATH(path); 768 return (error); 769 } 770 771 int 772 linux_rename(struct thread *td, struct linux_rename_args *args) 773 { 774 char *from, *to; 775 int error; 776 777 LCONVPATHEXIST(td, args->from, &from); 778 /* Expand LCONVPATHCREATE so that `from' can be freed on errors */ 779 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 780 if (to == NULL) { 781 LFREEPATH(from); 782 return (error); 783 } 784 785 #ifdef DEBUG 786 if (ldebug(rename)) 787 printf(ARGS(rename, "%s, %s"), from, to); 788 #endif 789 error = kern_rename(td, from, to, UIO_SYSSPACE); 790 LFREEPATH(from); 791 LFREEPATH(to); 792 return (error); 793 } 794 795 int 796 linux_renameat(struct thread *td, struct linux_renameat_args *args) 797 { 798 char *from, *to; 799 int error, olddfd, newdfd; 800 801 olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd; 802 newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 803 LCONVPATHEXIST_AT(td, args->oldname, &from, olddfd); 804 /* Expand LCONVPATHCREATE so that `from' can be freed on errors */ 805 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd); 806 if (to == NULL) { 807 LFREEPATH(from); 808 return (error); 809 } 810 811 #ifdef DEBUG 812 if (ldebug(renameat)) 813 printf(ARGS(renameat, "%s, %s"), from, to); 814 #endif 815 error = kern_renameat(td, olddfd, from, newdfd, to, UIO_SYSSPACE); 816 LFREEPATH(from); 817 LFREEPATH(to); 818 return (error); 819 } 820 821 int 822 linux_symlink(struct thread *td, struct linux_symlink_args *args) 823 { 824 char *path, *to; 825 int error; 826 827 LCONVPATHEXIST(td, args->path, &path); 828 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 829 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 830 if (to == NULL) { 831 LFREEPATH(path); 832 return (error); 833 } 834 835 #ifdef DEBUG 836 if (ldebug(symlink)) 837 printf(ARGS(symlink, "%s, %s"), path, to); 838 #endif 839 error = kern_symlink(td, path, to, UIO_SYSSPACE); 840 LFREEPATH(path); 841 LFREEPATH(to); 842 return (error); 843 } 844 845 int 846 linux_symlinkat(struct thread *td, struct linux_symlinkat_args *args) 847 { 848 char *path, *to; 849 int error, dfd; 850 851 dfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 852 LCONVPATHEXIST_AT(td, args->oldname, &path, dfd); 853 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 854 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, dfd); 855 if (to == NULL) { 856 LFREEPATH(path); 857 return (error); 858 } 859 860 #ifdef DEBUG 861 if (ldebug(symlinkat)) 862 printf(ARGS(symlinkat, "%s, %s"), path, to); 863 #endif 864 865 error = kern_symlinkat(td, path, dfd, to, UIO_SYSSPACE); 866 LFREEPATH(path); 867 LFREEPATH(to); 868 return (error); 869 } 870 871 int 872 linux_readlink(struct thread *td, struct linux_readlink_args *args) 873 { 874 char *name; 875 int error; 876 877 LCONVPATHEXIST(td, args->name, &name); 878 879 #ifdef DEBUG 880 if (ldebug(readlink)) 881 printf(ARGS(readlink, "%s, %p, %d"), name, (void *)args->buf, 882 args->count); 883 #endif 884 error = kern_readlink(td, name, UIO_SYSSPACE, args->buf, UIO_USERSPACE, 885 args->count); 886 LFREEPATH(name); 887 return (error); 888 } 889 890 int 891 linux_readlinkat(struct thread *td, struct linux_readlinkat_args *args) 892 { 893 char *name; 894 int error, dfd; 895 896 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 897 LCONVPATHEXIST_AT(td, args->path, &name, dfd); 898 899 #ifdef DEBUG 900 if (ldebug(readlinkat)) 901 printf(ARGS(readlinkat, "%s, %p, %d"), name, (void *)args->buf, 902 args->bufsiz); 903 #endif 904 905 error = kern_readlinkat(td, dfd, name, UIO_SYSSPACE, args->buf, 906 UIO_USERSPACE, args->bufsiz); 907 LFREEPATH(name); 908 return (error); 909 } 910 911 int 912 linux_truncate(struct thread *td, struct linux_truncate_args *args) 913 { 914 char *path; 915 int error; 916 917 LCONVPATHEXIST(td, args->path, &path); 918 919 #ifdef DEBUG 920 if (ldebug(truncate)) 921 printf(ARGS(truncate, "%s, %ld"), path, (long)args->length); 922 #endif 923 924 error = kern_truncate(td, path, UIO_SYSSPACE, args->length); 925 LFREEPATH(path); 926 return (error); 927 } 928 929 int 930 linux_truncate64(struct thread *td, struct linux_truncate64_args *args) 931 { 932 char *path; 933 int error; 934 935 LCONVPATHEXIST(td, args->path, &path); 936 937 #ifdef DEBUG 938 if (ldebug(truncate64)) 939 printf(ARGS(truncate64, "%s, %jd"), path, args->length); 940 #endif 941 942 error = kern_truncate(td, path, UIO_SYSSPACE, args->length); 943 LFREEPATH(path); 944 return (error); 945 } 946 int 947 linux_ftruncate(struct thread *td, struct linux_ftruncate_args *args) 948 { 949 struct ftruncate_args /* { 950 int fd; 951 int pad; 952 off_t length; 953 } */ nuap; 954 955 nuap.fd = args->fd; 956 nuap.length = args->length; 957 return (ftruncate(td, &nuap)); 958 } 959 960 int 961 linux_link(struct thread *td, struct linux_link_args *args) 962 { 963 char *path, *to; 964 int error; 965 966 LCONVPATHEXIST(td, args->path, &path); 967 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 968 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 969 if (to == NULL) { 970 LFREEPATH(path); 971 return (error); 972 } 973 974 #ifdef DEBUG 975 if (ldebug(link)) 976 printf(ARGS(link, "%s, %s"), path, to); 977 #endif 978 error = kern_link(td, path, to, UIO_SYSSPACE); 979 LFREEPATH(path); 980 LFREEPATH(to); 981 return (error); 982 } 983 984 int 985 linux_linkat(struct thread *td, struct linux_linkat_args *args) 986 { 987 char *path, *to; 988 int error, olddfd, newdfd; 989 990 /* 991 * They really introduced flags argument which is forbidden to 992 * use. 993 */ 994 if (args->flags != 0) 995 return (EINVAL); 996 997 olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd; 998 newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 999 LCONVPATHEXIST_AT(td, args->oldname, &path, olddfd); 1000 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 1001 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd); 1002 if (to == NULL) { 1003 LFREEPATH(path); 1004 return (error); 1005 } 1006 1007 #ifdef DEBUG 1008 if (ldebug(linkat)) 1009 printf(ARGS(linkat, "%i, %s, %i, %s, %i"), args->olddfd, path, 1010 args->newdfd, to, args->flags); 1011 #endif 1012 1013 error = kern_linkat(td, olddfd, newdfd, path, to, UIO_SYSSPACE, FOLLOW); 1014 LFREEPATH(path); 1015 LFREEPATH(to); 1016 return (error); 1017 } 1018 1019 int 1020 linux_fdatasync(td, uap) 1021 struct thread *td; 1022 struct linux_fdatasync_args *uap; 1023 { 1024 struct fsync_args bsd; 1025 1026 bsd.fd = uap->fd; 1027 return fsync(td, &bsd); 1028 } 1029 1030 int 1031 linux_pread(td, uap) 1032 struct thread *td; 1033 struct linux_pread_args *uap; 1034 { 1035 struct pread_args bsd; 1036 struct vnode *vp; 1037 int error; 1038 1039 bsd.fd = uap->fd; 1040 bsd.buf = uap->buf; 1041 bsd.nbyte = uap->nbyte; 1042 bsd.offset = uap->offset; 1043 1044 error = pread(td, &bsd); 1045 1046 if (error == 0) { 1047 /* This seems to violate POSIX but linux does it */ 1048 if ((error = fgetvp(td, uap->fd, &vp)) != 0) 1049 return (error); 1050 if (vp->v_type == VDIR) { 1051 vrele(vp); 1052 return (EISDIR); 1053 } 1054 vrele(vp); 1055 } 1056 1057 return (error); 1058 } 1059 1060 int 1061 linux_pwrite(td, uap) 1062 struct thread *td; 1063 struct linux_pwrite_args *uap; 1064 { 1065 struct pwrite_args bsd; 1066 1067 bsd.fd = uap->fd; 1068 bsd.buf = uap->buf; 1069 bsd.nbyte = uap->nbyte; 1070 bsd.offset = uap->offset; 1071 return pwrite(td, &bsd); 1072 } 1073 1074 int 1075 linux_mount(struct thread *td, struct linux_mount_args *args) 1076 { 1077 struct ufs_args ufs; 1078 char fstypename[MFSNAMELEN]; 1079 char mntonname[MNAMELEN], mntfromname[MNAMELEN]; 1080 int error; 1081 int fsflags; 1082 void *fsdata; 1083 1084 error = copyinstr(args->filesystemtype, fstypename, MFSNAMELEN - 1, 1085 NULL); 1086 if (error) 1087 return (error); 1088 error = copyinstr(args->specialfile, mntfromname, MNAMELEN - 1, NULL); 1089 if (error) 1090 return (error); 1091 error = copyinstr(args->dir, mntonname, MNAMELEN - 1, NULL); 1092 if (error) 1093 return (error); 1094 1095 #ifdef DEBUG 1096 if (ldebug(mount)) 1097 printf(ARGS(mount, "%s, %s, %s"), 1098 fstypename, mntfromname, mntonname); 1099 #endif 1100 1101 if (strcmp(fstypename, "ext2") == 0) { 1102 strcpy(fstypename, "ext2fs"); 1103 fsdata = &ufs; 1104 ufs.fspec = mntfromname; 1105 #define DEFAULT_ROOTID -2 1106 ufs.export.ex_root = DEFAULT_ROOTID; 1107 ufs.export.ex_flags = 1108 args->rwflag & LINUX_MS_RDONLY ? MNT_EXRDONLY : 0; 1109 } else if (strcmp(fstypename, "proc") == 0) { 1110 strcpy(fstypename, "linprocfs"); 1111 fsdata = NULL; 1112 } else { 1113 return (ENODEV); 1114 } 1115 1116 fsflags = 0; 1117 1118 if ((args->rwflag & 0xffff0000) == 0xc0ed0000) { 1119 /* 1120 * Linux SYNC flag is not included; the closest equivalent 1121 * FreeBSD has is !ASYNC, which is our default. 1122 */ 1123 if (args->rwflag & LINUX_MS_RDONLY) 1124 fsflags |= MNT_RDONLY; 1125 if (args->rwflag & LINUX_MS_NOSUID) 1126 fsflags |= MNT_NOSUID; 1127 if (args->rwflag & LINUX_MS_NOEXEC) 1128 fsflags |= MNT_NOEXEC; 1129 if (args->rwflag & LINUX_MS_REMOUNT) 1130 fsflags |= MNT_UPDATE; 1131 } 1132 1133 if (strcmp(fstypename, "linprocfs") == 0) { 1134 error = kernel_vmount(fsflags, 1135 "fstype", fstypename, 1136 "fspath", mntonname, 1137 NULL); 1138 } else 1139 error = EOPNOTSUPP; 1140 return (error); 1141 } 1142 1143 int 1144 linux_oldumount(struct thread *td, struct linux_oldumount_args *args) 1145 { 1146 struct linux_umount_args args2; 1147 1148 args2.path = args->path; 1149 args2.flags = 0; 1150 return (linux_umount(td, &args2)); 1151 } 1152 1153 int 1154 linux_umount(struct thread *td, struct linux_umount_args *args) 1155 { 1156 struct unmount_args bsd; 1157 1158 bsd.path = args->path; 1159 bsd.flags = args->flags; /* XXX correct? */ 1160 return (unmount(td, &bsd)); 1161 } 1162 1163 /* 1164 * fcntl family of syscalls 1165 */ 1166 1167 struct l_flock { 1168 l_short l_type; 1169 l_short l_whence; 1170 l_off_t l_start; 1171 l_off_t l_len; 1172 l_pid_t l_pid; 1173 } 1174 #if defined(__amd64__) && defined(COMPAT_LINUX32) 1175 __packed 1176 #endif 1177 ; 1178 1179 static void 1180 linux_to_bsd_flock(struct l_flock *linux_flock, struct flock *bsd_flock) 1181 { 1182 switch (linux_flock->l_type) { 1183 case LINUX_F_RDLCK: 1184 bsd_flock->l_type = F_RDLCK; 1185 break; 1186 case LINUX_F_WRLCK: 1187 bsd_flock->l_type = F_WRLCK; 1188 break; 1189 case LINUX_F_UNLCK: 1190 bsd_flock->l_type = F_UNLCK; 1191 break; 1192 default: 1193 bsd_flock->l_type = -1; 1194 break; 1195 } 1196 bsd_flock->l_whence = linux_flock->l_whence; 1197 bsd_flock->l_start = (off_t)linux_flock->l_start; 1198 bsd_flock->l_len = (off_t)linux_flock->l_len; 1199 bsd_flock->l_pid = (pid_t)linux_flock->l_pid; 1200 bsd_flock->l_sysid = 0; 1201 } 1202 1203 static void 1204 bsd_to_linux_flock(struct flock *bsd_flock, struct l_flock *linux_flock) 1205 { 1206 switch (bsd_flock->l_type) { 1207 case F_RDLCK: 1208 linux_flock->l_type = LINUX_F_RDLCK; 1209 break; 1210 case F_WRLCK: 1211 linux_flock->l_type = LINUX_F_WRLCK; 1212 break; 1213 case F_UNLCK: 1214 linux_flock->l_type = LINUX_F_UNLCK; 1215 break; 1216 } 1217 linux_flock->l_whence = bsd_flock->l_whence; 1218 linux_flock->l_start = (l_off_t)bsd_flock->l_start; 1219 linux_flock->l_len = (l_off_t)bsd_flock->l_len; 1220 linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid; 1221 } 1222 1223 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 1224 struct l_flock64 { 1225 l_short l_type; 1226 l_short l_whence; 1227 l_loff_t l_start; 1228 l_loff_t l_len; 1229 l_pid_t l_pid; 1230 } 1231 #if defined(__amd64__) && defined(COMPAT_LINUX32) 1232 __packed 1233 #endif 1234 ; 1235 1236 static void 1237 linux_to_bsd_flock64(struct l_flock64 *linux_flock, struct flock *bsd_flock) 1238 { 1239 switch (linux_flock->l_type) { 1240 case LINUX_F_RDLCK: 1241 bsd_flock->l_type = F_RDLCK; 1242 break; 1243 case LINUX_F_WRLCK: 1244 bsd_flock->l_type = F_WRLCK; 1245 break; 1246 case LINUX_F_UNLCK: 1247 bsd_flock->l_type = F_UNLCK; 1248 break; 1249 default: 1250 bsd_flock->l_type = -1; 1251 break; 1252 } 1253 bsd_flock->l_whence = linux_flock->l_whence; 1254 bsd_flock->l_start = (off_t)linux_flock->l_start; 1255 bsd_flock->l_len = (off_t)linux_flock->l_len; 1256 bsd_flock->l_pid = (pid_t)linux_flock->l_pid; 1257 bsd_flock->l_sysid = 0; 1258 } 1259 1260 static void 1261 bsd_to_linux_flock64(struct flock *bsd_flock, struct l_flock64 *linux_flock) 1262 { 1263 switch (bsd_flock->l_type) { 1264 case F_RDLCK: 1265 linux_flock->l_type = LINUX_F_RDLCK; 1266 break; 1267 case F_WRLCK: 1268 linux_flock->l_type = LINUX_F_WRLCK; 1269 break; 1270 case F_UNLCK: 1271 linux_flock->l_type = LINUX_F_UNLCK; 1272 break; 1273 } 1274 linux_flock->l_whence = bsd_flock->l_whence; 1275 linux_flock->l_start = (l_loff_t)bsd_flock->l_start; 1276 linux_flock->l_len = (l_loff_t)bsd_flock->l_len; 1277 linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid; 1278 } 1279 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 1280 1281 static int 1282 fcntl_common(struct thread *td, struct linux_fcntl64_args *args) 1283 { 1284 struct l_flock linux_flock; 1285 struct flock bsd_flock; 1286 struct file *fp; 1287 long arg; 1288 int error, result; 1289 1290 switch (args->cmd) { 1291 case LINUX_F_DUPFD: 1292 return (kern_fcntl(td, args->fd, F_DUPFD, args->arg)); 1293 1294 case LINUX_F_GETFD: 1295 return (kern_fcntl(td, args->fd, F_GETFD, 0)); 1296 1297 case LINUX_F_SETFD: 1298 return (kern_fcntl(td, args->fd, F_SETFD, args->arg)); 1299 1300 case LINUX_F_GETFL: 1301 error = kern_fcntl(td, args->fd, F_GETFL, 0); 1302 result = td->td_retval[0]; 1303 td->td_retval[0] = 0; 1304 if (result & O_RDONLY) 1305 td->td_retval[0] |= LINUX_O_RDONLY; 1306 if (result & O_WRONLY) 1307 td->td_retval[0] |= LINUX_O_WRONLY; 1308 if (result & O_RDWR) 1309 td->td_retval[0] |= LINUX_O_RDWR; 1310 if (result & O_NDELAY) 1311 td->td_retval[0] |= LINUX_O_NONBLOCK; 1312 if (result & O_APPEND) 1313 td->td_retval[0] |= LINUX_O_APPEND; 1314 if (result & O_FSYNC) 1315 td->td_retval[0] |= LINUX_O_SYNC; 1316 if (result & O_ASYNC) 1317 td->td_retval[0] |= LINUX_FASYNC; 1318 #ifdef LINUX_O_NOFOLLOW 1319 if (result & O_NOFOLLOW) 1320 td->td_retval[0] |= LINUX_O_NOFOLLOW; 1321 #endif 1322 #ifdef LINUX_O_DIRECT 1323 if (result & O_DIRECT) 1324 td->td_retval[0] |= LINUX_O_DIRECT; 1325 #endif 1326 return (error); 1327 1328 case LINUX_F_SETFL: 1329 arg = 0; 1330 if (args->arg & LINUX_O_NDELAY) 1331 arg |= O_NONBLOCK; 1332 if (args->arg & LINUX_O_APPEND) 1333 arg |= O_APPEND; 1334 if (args->arg & LINUX_O_SYNC) 1335 arg |= O_FSYNC; 1336 if (args->arg & LINUX_FASYNC) 1337 arg |= O_ASYNC; 1338 #ifdef LINUX_O_NOFOLLOW 1339 if (args->arg & LINUX_O_NOFOLLOW) 1340 arg |= O_NOFOLLOW; 1341 #endif 1342 #ifdef LINUX_O_DIRECT 1343 if (args->arg & LINUX_O_DIRECT) 1344 arg |= O_DIRECT; 1345 #endif 1346 return (kern_fcntl(td, args->fd, F_SETFL, arg)); 1347 1348 case LINUX_F_GETLK: 1349 error = copyin((void *)args->arg, &linux_flock, 1350 sizeof(linux_flock)); 1351 if (error) 1352 return (error); 1353 linux_to_bsd_flock(&linux_flock, &bsd_flock); 1354 error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock); 1355 if (error) 1356 return (error); 1357 bsd_to_linux_flock(&bsd_flock, &linux_flock); 1358 return (copyout(&linux_flock, (void *)args->arg, 1359 sizeof(linux_flock))); 1360 1361 case LINUX_F_SETLK: 1362 error = copyin((void *)args->arg, &linux_flock, 1363 sizeof(linux_flock)); 1364 if (error) 1365 return (error); 1366 linux_to_bsd_flock(&linux_flock, &bsd_flock); 1367 return (kern_fcntl(td, args->fd, F_SETLK, 1368 (intptr_t)&bsd_flock)); 1369 1370 case LINUX_F_SETLKW: 1371 error = copyin((void *)args->arg, &linux_flock, 1372 sizeof(linux_flock)); 1373 if (error) 1374 return (error); 1375 linux_to_bsd_flock(&linux_flock, &bsd_flock); 1376 return (kern_fcntl(td, args->fd, F_SETLKW, 1377 (intptr_t)&bsd_flock)); 1378 1379 case LINUX_F_GETOWN: 1380 return (kern_fcntl(td, args->fd, F_GETOWN, 0)); 1381 1382 case LINUX_F_SETOWN: 1383 /* 1384 * XXX some Linux applications depend on F_SETOWN having no 1385 * significant effect for pipes (SIGIO is not delivered for 1386 * pipes under Linux-2.2.35 at least). 1387 */ 1388 error = fget(td, args->fd, &fp); 1389 if (error) 1390 return (error); 1391 if (fp->f_type == DTYPE_PIPE) { 1392 fdrop(fp, td); 1393 return (EINVAL); 1394 } 1395 fdrop(fp, td); 1396 1397 return (kern_fcntl(td, args->fd, F_SETOWN, args->arg)); 1398 } 1399 1400 return (EINVAL); 1401 } 1402 1403 int 1404 linux_fcntl(struct thread *td, struct linux_fcntl_args *args) 1405 { 1406 struct linux_fcntl64_args args64; 1407 1408 #ifdef DEBUG 1409 if (ldebug(fcntl)) 1410 printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd); 1411 #endif 1412 1413 args64.fd = args->fd; 1414 args64.cmd = args->cmd; 1415 args64.arg = args->arg; 1416 return (fcntl_common(td, &args64)); 1417 } 1418 1419 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 1420 int 1421 linux_fcntl64(struct thread *td, struct linux_fcntl64_args *args) 1422 { 1423 struct l_flock64 linux_flock; 1424 struct flock bsd_flock; 1425 int error; 1426 1427 #ifdef DEBUG 1428 if (ldebug(fcntl64)) 1429 printf(ARGS(fcntl64, "%d, %08x, *"), args->fd, args->cmd); 1430 #endif 1431 1432 switch (args->cmd) { 1433 case LINUX_F_GETLK64: 1434 error = copyin((void *)args->arg, &linux_flock, 1435 sizeof(linux_flock)); 1436 if (error) 1437 return (error); 1438 linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1439 error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock); 1440 if (error) 1441 return (error); 1442 bsd_to_linux_flock64(&bsd_flock, &linux_flock); 1443 return (copyout(&linux_flock, (void *)args->arg, 1444 sizeof(linux_flock))); 1445 1446 case LINUX_F_SETLK64: 1447 error = copyin((void *)args->arg, &linux_flock, 1448 sizeof(linux_flock)); 1449 if (error) 1450 return (error); 1451 linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1452 return (kern_fcntl(td, args->fd, F_SETLK, 1453 (intptr_t)&bsd_flock)); 1454 1455 case LINUX_F_SETLKW64: 1456 error = copyin((void *)args->arg, &linux_flock, 1457 sizeof(linux_flock)); 1458 if (error) 1459 return (error); 1460 linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1461 return (kern_fcntl(td, args->fd, F_SETLKW, 1462 (intptr_t)&bsd_flock)); 1463 } 1464 1465 return (fcntl_common(td, args)); 1466 } 1467 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 1468 1469 int 1470 linux_chown(struct thread *td, struct linux_chown_args *args) 1471 { 1472 char *path; 1473 int error; 1474 1475 LCONVPATHEXIST(td, args->path, &path); 1476 1477 #ifdef DEBUG 1478 if (ldebug(chown)) 1479 printf(ARGS(chown, "%s, %d, %d"), path, args->uid, args->gid); 1480 #endif 1481 error = kern_chown(td, path, UIO_SYSSPACE, args->uid, args->gid); 1482 LFREEPATH(path); 1483 return (error); 1484 } 1485 1486 int 1487 linux_fchownat(struct thread *td, struct linux_fchownat_args *args) 1488 { 1489 char *path; 1490 int error, dfd, follow; 1491 1492 if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW) 1493 return (EINVAL); 1494 1495 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 1496 LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 1497 1498 #ifdef DEBUG 1499 if (ldebug(fchownat)) 1500 printf(ARGS(fchownat, "%s, %d, %d"), path, args->uid, args->gid); 1501 #endif 1502 1503 follow = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) == 0 ? 0 : 1504 AT_SYMLINK_NOFOLLOW; 1505 error = kern_fchownat(td, dfd, path, UIO_SYSSPACE, args->uid, args->gid, 1506 follow); 1507 LFREEPATH(path); 1508 return (error); 1509 } 1510 1511 int 1512 linux_lchown(struct thread *td, struct linux_lchown_args *args) 1513 { 1514 char *path; 1515 int error; 1516 1517 LCONVPATHEXIST(td, args->path, &path); 1518 1519 #ifdef DEBUG 1520 if (ldebug(lchown)) 1521 printf(ARGS(lchown, "%s, %d, %d"), path, args->uid, args->gid); 1522 #endif 1523 error = kern_lchown(td, path, UIO_SYSSPACE, args->uid, args->gid); 1524 LFREEPATH(path); 1525 return (error); 1526 } 1527