1 /* $NetBSD: hfs_vnops.c,v 1.13 2008/12/17 20:51:35 cegger Exp $ */ 2 3 /*- 4 * Copyright (c) 2005, 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Yevgeny Binder and Dieter Baron. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1992, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * This code is derived from software donated to Berkeley by 37 * Jan-Simon Pendry. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. Neither the name of the University nor the names of its contributors 48 * may be used to endorse or promote products derived from this software 49 * without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 61 * SUCH DAMAGE. 62 */ 63 64 /* 65 * Copyright (c) 1982, 1986, 1989, 1993, 1995 66 * The Regents of the University of California. All rights reserved. 67 * (c) UNIX System Laboratories, Inc. 68 * All or some portions of this file are derived from material licensed 69 * to the University of California by American Telephone and Telegraph 70 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 71 * the permission of UNIX System Laboratories, Inc. 72 * 73 * Redistribution and use in source and binary forms, with or without 74 * modification, are permitted provided that the following conditions 75 * are met: 76 * 1. Redistributions of source code must retain the above copyright 77 * notice, this list of conditions and the following disclaimer. 78 * 2. Redistributions in binary form must reproduce the above copyright 79 * notice, this list of conditions and the following disclaimer in the 80 * documentation and/or other materials provided with the distribution. 81 * 3. Neither the name of the University nor the names of its contributors 82 * may be used to endorse or promote products derived from this software 83 * without specific prior written permission. 84 * 85 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 86 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 87 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 88 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 89 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 90 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 91 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 92 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 93 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 94 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 95 * SUCH DAMAGE. 96 */ 97 98 99 /* 100 * Apple HFS+ filesystem 101 */ 102 103 #include <sys/cdefs.h> 104 __KERNEL_RCSID(0, "$NetBSD: hfs_vnops.c,v 1.13 2008/12/17 20:51:35 cegger Exp $"); 105 106 #ifdef _KERNEL_OPT 107 #include "opt_ipsec.h" 108 #endif 109 110 #include <sys/param.h> 111 #include <sys/systm.h> 112 #include <sys/kernel.h> 113 #include <sys/vmmeter.h> 114 #include <sys/time.h> 115 #include <sys/proc.h> 116 #include <sys/vnode.h> 117 #include <sys/malloc.h> 118 #include <sys/file.h> 119 #include <sys/stat.h> 120 #include <sys/mount.h> 121 #include <sys/namei.h> 122 #include <sys/buf.h> 123 #include <sys/dirent.h> 124 #include <sys/msgbuf.h> 125 126 #include <miscfs/fifofs/fifo.h> 127 #include <miscfs/specfs/specdev.h> 128 129 #include <fs/hfs/hfs.h> 130 #include <fs/hfs/unicode.h> 131 132 #include <miscfs/genfs/genfs.h> 133 134 int hfs_vop_lookup (void *); 135 int hfs_vop_open (void *); 136 int hfs_vop_close (void *); 137 int hfs_vop_access (void *); 138 int hfs_vop_getattr (void *); 139 int hfs_vop_setattr (void *); 140 int hfs_vop_bmap (void *); 141 int hfs_vop_read (void *); 142 int hfs_vop_readdir (void *); 143 int hfs_vop_readlink (void *); 144 int hfs_vop_reclaim (void *); 145 int hfs_vop_print (void *); 146 147 148 int (**hfs_vnodeop_p) (void *); 149 const struct vnodeopv_entry_desc hfs_vnodeop_entries[] = { 150 { &vop_default_desc, vn_default_error }, 151 { &vop_lookup_desc, hfs_vop_lookup }, /* lookup */ 152 { &vop_create_desc, genfs_eopnotsupp }, /* create */ 153 { &vop_whiteout_desc, genfs_eopnotsupp }, /* whiteout */ 154 { &vop_mknod_desc, genfs_eopnotsupp }, /* mknod */ 155 { &vop_open_desc, hfs_vop_open }, /* open */ 156 { &vop_close_desc, hfs_vop_close }, /* close */ 157 { &vop_access_desc, hfs_vop_access }, /* access */ 158 { &vop_getattr_desc, hfs_vop_getattr }, /* getattr */ 159 { &vop_setattr_desc, hfs_vop_setattr }, /* setattr */ 160 { &vop_read_desc, hfs_vop_read }, /* read */ 161 { &vop_write_desc, genfs_eopnotsupp }, /* write */ 162 { &vop_ioctl_desc, genfs_eopnotsupp }, /* ioctl */ 163 { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */ 164 { &vop_poll_desc, genfs_eopnotsupp }, /* poll */ 165 { &vop_kqfilter_desc, genfs_kqfilter }, /* kqfilter */ 166 { &vop_revoke_desc, genfs_eopnotsupp }, /* revoke */ 167 { &vop_mmap_desc, genfs_mmap }, /* mmap */ 168 { &vop_fsync_desc, genfs_nullop }, /* fsync */ 169 { &vop_seek_desc, genfs_seek }, /* seek */ 170 { &vop_remove_desc, genfs_eopnotsupp }, /* remove */ 171 { &vop_link_desc, genfs_eopnotsupp }, /* link */ 172 { &vop_rename_desc, genfs_eopnotsupp }, /* rename */ 173 { &vop_mkdir_desc, genfs_eopnotsupp }, /* mkdir */ 174 { &vop_rmdir_desc, genfs_eopnotsupp }, /* rmdir */ 175 { &vop_symlink_desc, genfs_eopnotsupp }, /* symlink */ 176 { &vop_readdir_desc, hfs_vop_readdir }, /* readdir */ 177 { &vop_readlink_desc, hfs_vop_readlink }, /* readlink */ 178 { &vop_abortop_desc, genfs_abortop }, /* abortop */ 179 { &vop_inactive_desc, genfs_eopnotsupp }, /* inactive */ 180 { &vop_reclaim_desc, hfs_vop_reclaim }, /* reclaim */ 181 { &vop_lock_desc, genfs_lock }, /* lock */ 182 { &vop_unlock_desc, genfs_unlock }, /* unlock */ 183 { &vop_bmap_desc, hfs_vop_bmap }, /* bmap */ 184 { &vop_strategy_desc, genfs_eopnotsupp }, /* strategy */ 185 { &vop_print_desc, hfs_vop_print }, /* print */ 186 { &vop_islocked_desc, genfs_islocked }, /* islocked */ 187 { &vop_pathconf_desc, genfs_eopnotsupp }, /* pathconf */ 188 { &vop_advlock_desc, genfs_eopnotsupp }, /* advlock */ 189 { &vop_bwrite_desc, genfs_eopnotsupp }, /* bwrite */ 190 { &vop_getpages_desc, genfs_getpages }, /* getpages */ 191 { &vop_putpages_desc, genfs_putpages }, /* putpages */ 192 { &vop_openextattr_desc, genfs_eopnotsupp }, /* openextattr */ 193 { &vop_closeextattr_desc, genfs_eopnotsupp }, /* closeextattr */ 194 { &vop_getextattr_desc, genfs_eopnotsupp }, /* getextattr */ 195 { &vop_setextattr_desc, genfs_eopnotsupp }, /* setextattr */ 196 { &vop_listextattr_desc, genfs_eopnotsupp }, /* listextattr */ 197 { &vop_deleteextattr_desc, genfs_eopnotsupp }, /* deleteextattr */ 198 { NULL, NULL } 199 }; 200 const struct vnodeopv_desc hfs_vnodeop_opv_desc = 201 { &hfs_vnodeop_p, hfs_vnodeop_entries }; 202 203 int (**hfs_specop_p) (void *); 204 const struct vnodeopv_entry_desc hfs_specop_entries[] = { 205 { &vop_default_desc, vn_default_error }, 206 { &vop_lookup_desc, spec_lookup }, /* lookup */ 207 { &vop_create_desc, spec_create }, /* create */ 208 { &vop_mknod_desc, spec_mknod }, /* mknod */ 209 { &vop_open_desc, spec_open }, /* open */ 210 { &vop_close_desc, spec_close }, /* close */ 211 { &vop_access_desc, hfs_vop_access }, /* access */ 212 { &vop_getattr_desc, hfs_vop_getattr }, /* getattr */ 213 { &vop_setattr_desc, hfs_vop_setattr }, /* setattr */ 214 { &vop_read_desc, spec_read }, /* read */ 215 { &vop_write_desc, spec_write }, /* write */ 216 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ 217 { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */ 218 { &vop_poll_desc, spec_poll }, /* poll */ 219 { &vop_kqfilter_desc, spec_kqfilter }, /* kqfilter */ 220 { &vop_revoke_desc, spec_revoke }, /* revoke */ 221 { &vop_mmap_desc, spec_mmap }, /* mmap */ 222 { &vop_fsync_desc, spec_fsync }, /* fsync */ 223 { &vop_seek_desc, spec_seek }, /* seek */ 224 { &vop_remove_desc, spec_remove }, /* remove */ 225 { &vop_link_desc, spec_link }, /* link */ 226 { &vop_rename_desc, spec_rename }, /* rename */ 227 { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ 228 { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ 229 { &vop_symlink_desc, spec_symlink }, /* symlink */ 230 { &vop_readdir_desc, spec_readdir }, /* readdir */ 231 { &vop_readlink_desc, spec_readlink }, /* readlink */ 232 { &vop_abortop_desc, spec_abortop }, /* abortop */ 233 { &vop_inactive_desc, genfs_eopnotsupp }, /* inactive */ 234 { &vop_reclaim_desc, hfs_vop_reclaim }, /* reclaim */ 235 { &vop_lock_desc, genfs_lock }, /* lock */ 236 { &vop_unlock_desc, genfs_unlock }, /* unlock */ 237 { &vop_bmap_desc, spec_bmap }, /* bmap */ 238 { &vop_strategy_desc, spec_strategy }, /* strategy */ 239 { &vop_print_desc, hfs_vop_print }, /* print */ 240 { &vop_islocked_desc, genfs_islocked }, /* islocked */ 241 { &vop_pathconf_desc, spec_pathconf }, /* pathconf */ 242 { &vop_advlock_desc, spec_advlock }, /* advlock */ 243 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 244 { &vop_getpages_desc, spec_getpages }, /* getpages */ 245 { &vop_putpages_desc, spec_putpages }, /* putpages */ 246 #if 0 247 { &vop_openextattr_desc, ffs_openextattr }, /* openextattr */ 248 { &vop_closeextattr_desc, ffs_closeextattr }, /* closeextattr */ 249 { &vop_getextattr_desc, ffs_getextattr }, /* getextattr */ 250 { &vop_setextattr_desc, ffs_setextattr }, /* setextattr */ 251 { &vop_listextattr_desc, ffs_listextattr }, /* listextattr */ 252 { &vop_deleteextattr_desc, ffs_deleteextattr }, /* deleteextattr */ 253 #endif 254 { NULL, NULL } 255 }; 256 const struct vnodeopv_desc hfs_specop_opv_desc = 257 { &hfs_specop_p, hfs_specop_entries }; 258 259 int (**hfs_fifoop_p) (void *); 260 const struct vnodeopv_entry_desc hfs_fifoop_entries[] = { 261 { &vop_default_desc, vn_default_error }, 262 { &vop_lookup_desc, fifo_lookup }, /* lookup */ 263 { &vop_create_desc, fifo_create }, /* create */ 264 { &vop_mknod_desc, fifo_mknod }, /* mknod */ 265 { &vop_open_desc, fifo_open }, /* open */ 266 { &vop_close_desc, fifo_close }, /* close */ 267 { &vop_access_desc, hfs_vop_access }, /* access */ 268 { &vop_getattr_desc, hfs_vop_getattr }, /* getattr */ 269 { &vop_setattr_desc, hfs_vop_setattr }, /* setattr */ 270 { &vop_read_desc, fifo_read }, /* read */ 271 { &vop_write_desc, fifo_write }, /* write */ 272 { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */ 273 { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */ 274 { &vop_poll_desc, fifo_poll }, /* poll */ 275 { &vop_kqfilter_desc, fifo_kqfilter }, /* kqfilter */ 276 { &vop_revoke_desc, fifo_revoke }, /* revoke */ 277 { &vop_mmap_desc, fifo_mmap }, /* mmap */ 278 { &vop_fsync_desc, fifo_fsync }, /* fsync */ 279 { &vop_seek_desc, fifo_seek }, /* seek */ 280 { &vop_remove_desc, fifo_remove }, /* remove */ 281 { &vop_link_desc, fifo_link }, /* link */ 282 { &vop_rename_desc, fifo_rename }, /* rename */ 283 { &vop_mkdir_desc, fifo_mkdir }, /* mkdir */ 284 { &vop_rmdir_desc, fifo_rmdir }, /* rmdir */ 285 { &vop_symlink_desc, fifo_symlink }, /* symlink */ 286 { &vop_readdir_desc, fifo_readdir }, /* readdir */ 287 { &vop_readlink_desc, fifo_readlink }, /* readlink */ 288 { &vop_abortop_desc, fifo_abortop }, /* abortop */ 289 { &vop_inactive_desc, genfs_eopnotsupp }, /* inactive */ 290 { &vop_reclaim_desc, hfs_vop_reclaim }, /* reclaim */ 291 { &vop_lock_desc, genfs_lock }, /* lock */ 292 { &vop_unlock_desc, genfs_unlock }, /* unlock */ 293 { &vop_bmap_desc, fifo_bmap }, /* bmap */ 294 { &vop_strategy_desc, fifo_strategy }, /* strategy */ 295 { &vop_print_desc, hfs_vop_print }, /* print */ 296 { &vop_islocked_desc, genfs_islocked }, /* islocked */ 297 { &vop_pathconf_desc, fifo_pathconf }, /* pathconf */ 298 { &vop_advlock_desc, fifo_advlock }, /* advlock */ 299 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 300 { &vop_putpages_desc, fifo_putpages }, /* putpages */ 301 #if 0 302 { &vop_openextattr_desc, ffs_openextattr }, /* openextattr */ 303 { &vop_closeextattr_desc, ffs_closeextattr }, /* closeextattr */ 304 { &vop_getextattr_desc, ffs_getextattr }, /* getextattr */ 305 { &vop_setextattr_desc, ffs_setextattr }, /* setextattr */ 306 { &vop_listextattr_desc, ffs_listextattr }, /* listextattr */ 307 { &vop_deleteextattr_desc, ffs_deleteextattr }, /* deleteextattr */ 308 #endif 309 { NULL, NULL } 310 }; 311 const struct vnodeopv_desc hfs_fifoop_opv_desc = 312 { &hfs_fifoop_p, hfs_fifoop_entries }; 313 314 int 315 hfs_vop_lookup(void *v) 316 { 317 struct vop_lookup_args /* { 318 struct vnode * a_dvp; 319 struct vnode ** a_vpp; 320 struct componentname * a_cnp; 321 } */ *ap = v; 322 struct buf *bp; /* a buffer of directory entries */ 323 struct componentname *cnp; 324 struct hfsnode *dp; /* hfsnode for directory being searched */ 325 kauth_cred_t cred; 326 struct vnode **vpp; /* resultant vnode */ 327 struct vnode *pdp; /* saved dp during symlink work */ 328 struct vnode *tdp; /* returned by VFS_VGET */ 329 struct vnode *vdp; /* vnode for directory being searched */ 330 hfs_catalog_key_t key; /* hfs+ catalog search key for requested child */ 331 hfs_catalog_keyed_record_t rec; /* catalog record of requested child */ 332 unichar_t* unicn; /* name of component, in Unicode */ 333 const char *pname; 334 int error; 335 int flags; 336 int result; /* result of libhfs operations */ 337 338 #ifdef HFS_DEBUG 339 printf("VOP = hfs_vop_lookup()\n"); 340 #endif /* HFS_DEBUG */ 341 342 bp = NULL; 343 cnp = ap->a_cnp; 344 cred = cnp->cn_cred; 345 vdp = ap->a_dvp; 346 dp = VTOH(vdp); 347 error = 0; 348 pname = cnp->cn_nameptr; 349 result = 0; 350 unicn = NULL; 351 vpp = ap->a_vpp; 352 *vpp = NULL; 353 354 flags = cnp->cn_flags; 355 356 357 /* 358 * Check accessiblity of directory. 359 */ 360 if ((error = VOP_ACCESS(vdp, VEXEC, cred)) != 0) 361 return error; 362 363 if ((flags & ISLASTCN) && (vdp->v_mount->mnt_flag & MNT_RDONLY) && 364 (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME)) 365 return EROFS; 366 367 /* 368 * We now have a segment name to search for, and a directory to search. 369 * 370 * Before tediously performing a linear scan of the directory, 371 * check the name cache to see if the directory/name pair 372 * we are looking for is known already. 373 */ 374 /* XXX Cache disabled until we can make sure it works. */ 375 /* if ((error = cache_lookup(vdp, vpp, cnp)) >= 0) 376 return error; */ 377 378 379 /* if (cnp->cn_namelen == 1 && *pname == '.') { 380 *vpp = vdp; 381 VREF(vdp); 382 return (0); 383 }*/ 384 385 pdp = vdp; 386 if (flags & ISDOTDOT) { 387 /*printf("DOTDOT ");*/ 388 VOP_UNLOCK(pdp, 0); /* race to get the inode */ 389 error = VFS_VGET(vdp->v_mount, dp->h_parent, &tdp); 390 vn_lock(pdp, LK_EXCLUSIVE | LK_RETRY); 391 if (error != 0) 392 goto error; 393 *vpp = tdp; 394 /* } else if (dp->h_rec.u.cnid == rec.file.u.cnid) {*/ 395 } else if (cnp->cn_namelen == 1 && pname[0] == '.') { 396 /*printf("DOT ");*/ 397 VREF(vdp); /* we want ourself, ie "." */ 398 *vpp = vdp; 399 } else { 400 hfs_callback_args cbargs; 401 uint8_t len; 402 403 hfslib_init_cbargs(&cbargs); 404 405 /* XXX: when decomposing, string could grow 406 and we have to handle overflow */ 407 unicn = malloc(cnp->cn_namelen*sizeof(unicn[0]), M_TEMP, M_WAITOK); 408 len = utf8_to_utf16(unicn, cnp->cn_namelen, 409 cnp->cn_nameptr, cnp->cn_namelen, 0, NULL); 410 /* XXX: check conversion errors? */ 411 if (hfslib_make_catalog_key(VTOH(vdp)->h_rec.u.cnid, len, unicn, 412 &key) == 0) { 413 /*printf("ERROR in hfslib_make_catalog_key\n");*/ 414 error = EINVAL; 415 goto error; 416 } 417 418 result = hfslib_find_catalog_record_with_key(&dp->h_hmp->hm_vol, &key, 419 &rec, &cbargs); 420 if (result > 0) { 421 error = EINVAL; 422 goto error; 423 } 424 if (result < 0) { 425 if (cnp->cn_nameiop == CREATE) 426 error = EROFS; 427 else 428 error = ENOENT; 429 goto error; 430 } 431 432 if (rec.file.user_info.file_type == HFS_HARD_LINK_FILE_TYPE 433 && rec.file.user_info.file_creator 434 == HFS_HFSLUS_CREATOR) { 435 if (hfslib_get_hardlink(&dp->h_hmp->hm_vol, 436 rec.file.bsd.special.inode_num, 437 &rec, &cbargs) != 0) { 438 error = EINVAL; 439 goto error; 440 } 441 } 442 443 if (rec.type == HFS_REC_FILE 444 && strcmp(cnp->cn_nameptr+cnp->cn_namelen, "/rsrc") == 0 445 && rec.file.rsrc_fork.logical_size > 0) { 446 /* advance namei next pointer to end of stirng */ 447 cnp->cn_consume = 5; 448 cnp->cn_flags &= ~REQUIREDIR; /* XXX: needed? */ 449 error = hfs_vget_internal(vdp->v_mount, rec.file.cnid, 450 HFS_RSRCFORK, &tdp); 451 } 452 else 453 error = VFS_VGET(vdp->v_mount, rec.file.cnid, &tdp); 454 if (error != 0) 455 goto error; 456 *vpp = tdp; 457 } 458 /*printf("\n");*/ 459 /* 460 * Insert name into cache if appropriate. 461 */ 462 /* XXX Cache disabled until we can make sure it works. */ 463 /* if (cnp->cn_flags & MAKEENTRY) 464 cache_enter(vdp, *vpp, cnp);*/ 465 466 error = 0; 467 468 /* FALLTHROUGH */ 469 error: 470 if (unicn != NULL) 471 free(unicn, M_TEMP); 472 473 return error; 474 } 475 476 int 477 hfs_vop_open(void *v) 478 { 479 #if 0 480 struct vop_open_args /* { 481 struct vnode *a_vp; 482 int a_mode; 483 kauth_cred_t a_cred; 484 } */ *ap = v; 485 struct hfsnode *hn = VTOH(ap->a_vp); 486 #endif 487 #ifdef HFS_DEBUG 488 printf("VOP = hfs_vop_open()\n"); 489 #endif /* HFS_DEBUG */ 490 491 /* 492 * XXX This is a good place to read and cache the file's extents to avoid 493 * XXX doing it upon every read/write. Must however keep the cache in sync 494 * XXX when the file grows/shrinks. (So would that go in vop_truncate?) 495 */ 496 497 return 0; 498 } 499 500 int 501 hfs_vop_close(void *v) 502 { 503 #if 0 504 struct vop_close_args /* { 505 struct vnode *a_vp; 506 int a_fflag; 507 kauth_cred_t a_cred; 508 } */ *ap = v; 509 struct hfsnode *hn = VTOH(ap->a_vp); 510 #endif 511 #ifdef HFS_DEBUG 512 printf("VOP = hfs_vop_close()\n"); 513 #endif /* HFS_DEBUG */ 514 515 /* Release extents cache here. */ 516 517 return 0; 518 } 519 520 int 521 hfs_vop_access(void *v) 522 { 523 struct vop_access_args /* { 524 struct vnode *a_vp; 525 int a_mode; 526 kauth_cred_t a_cred; 527 } */ *ap = v; 528 struct vattr va; 529 int error; 530 531 #ifdef HFS_DEBUG 532 printf("VOP = hfs_vop_access()\n"); 533 #endif /* HFS_DEBUG */ 534 535 /* 536 * Disallow writes on files, directories, and symlinks 537 * since we have no write support yet. 538 */ 539 540 if (ap->a_mode & VWRITE) { 541 switch (ap->a_vp->v_type) { 542 case VDIR: 543 case VLNK: 544 case VREG: 545 return EROFS; 546 default: 547 break; 548 } 549 } 550 551 if ((error = VOP_GETATTR(ap->a_vp, &va, ap->a_cred)) != 0) 552 return error; 553 554 return vaccess(va.va_type, va.va_mode, va.va_uid, va.va_gid, 555 ap->a_mode, ap->a_cred); 556 } 557 558 int 559 hfs_vop_getattr(void *v) 560 { 561 struct vop_getattr_args /* { 562 struct vnode *a_vp; 563 struct vattr *a_vap; 564 struct ucred *a_cred; 565 } */ *ap = v; 566 struct vnode *vp; 567 struct hfsnode *hp; 568 struct vattr *vap; 569 hfs_bsd_data_t *bsd; 570 hfs_fork_t *fork; 571 572 #ifdef HFS_DEBUG 573 printf("VOP = hfs_vop_getattr()\n"); 574 #endif /* HFS_DEBUG */ 575 576 vp = ap->a_vp; 577 hp = VTOH(vp); 578 vap = ap->a_vap; 579 580 vattr_null(vap); 581 582 /* 583 * XXX Cannot trust permissions/modes/flags stored in an HFS+ catalog record 584 * XXX record those values are not set on files created under Mac OS 9. 585 */ 586 vap->va_type = ap->a_vp->v_type; 587 if (hp->h_rec.u.rec_type == HFS_REC_FILE) { 588 if (hp->h_fork == HFS_RSRCFORK) 589 fork = &hp->h_rec.file.rsrc_fork; 590 else 591 fork = &hp->h_rec.file.data_fork; 592 vap->va_fileid = hp->h_rec.file.cnid; 593 bsd = &hp->h_rec.file.bsd; 594 vap->va_bytes = fork->total_blocks * HFS_BLOCKSIZE(vp); 595 vap->va_size = fork->logical_size; 596 hfs_time_to_timespec(hp->h_rec.file.date_created, &vap->va_ctime); 597 hfs_time_to_timespec(hp->h_rec.file.date_content_mod, &vap->va_mtime); 598 hfs_time_to_timespec(hp->h_rec.file.date_accessed, &vap->va_atime); 599 vap->va_nlink = 1; 600 } 601 else if (hp->h_rec.u.rec_type == HFS_REC_FLDR) { 602 vap->va_fileid = hp->h_rec.folder.cnid; 603 bsd = &hp->h_rec.folder.bsd; 604 vap->va_size = 512; /* XXX Temporary */ 605 vap->va_bytes = 512; /* XXX Temporary */ 606 hfs_time_to_timespec(hp->h_rec.folder.date_created, &vap->va_ctime); 607 hfs_time_to_timespec(hp->h_rec.folder.date_content_mod,&vap->va_mtime); 608 hfs_time_to_timespec(hp->h_rec.folder.date_accessed, &vap->va_atime); 609 vap->va_nlink = 2; /* XXX */ 610 } 611 else { 612 printf("hfslus: hfs_vop_getattr(): invalid record type %i", 613 hp->h_rec.u.rec_type); 614 return EINVAL; 615 } 616 617 if ((bsd->file_mode & S_IFMT) == 0) { 618 /* no bsd permissions recorded, use default values */ 619 if (hp->h_rec.u.rec_type == HFS_REC_FILE) 620 vap->va_mode = (S_IFREG | HFS_DEFAULT_FILE_MODE); 621 else 622 vap->va_mode = (S_IFDIR | HFS_DEFAULT_DIR_MODE); 623 vap->va_uid = HFS_DEFAULT_UID; 624 vap->va_gid = HFS_DEFAULT_GID; 625 } 626 else { 627 vap->va_mode = bsd->file_mode; 628 vap->va_uid = bsd->owner_id; 629 vap->va_gid = bsd->group_id; 630 if ((vap->va_mode & S_IFMT) == S_IFCHR 631 || (vap->va_mode & S_IFMT) == S_IFBLK) { 632 vap->va_rdev 633 = HFS_CONVERT_RDEV(bsd->special.raw_device); 634 } 635 else if (bsd->special.link_count != 0) { 636 /* XXX: only if in metadata directory */ 637 vap->va_nlink = bsd->special.link_count; 638 } 639 } 640 641 vap->va_fsid = hp->h_dev; 642 vap->va_blocksize = hp->h_hmp->hm_vol.vh.block_size; 643 vap->va_gen = 1; 644 vap->va_flags = 0; 645 646 return 0; 647 } 648 649 int 650 hfs_vop_setattr(void *v) 651 { 652 struct vop_setattr_args /* { 653 struct vnode *a_vp; 654 struct vattr *a_vap; 655 kauth_cred_t a_cred; 656 } */ *ap = v; 657 struct vattr *vap; 658 struct vnode *vp; 659 660 vap = ap->a_vap; 661 vp = ap->a_vp; 662 663 /* 664 * Check for unsettable attributes. 665 */ 666 if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) || 667 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) || 668 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) || 669 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) { 670 return EINVAL; 671 } 672 673 /* XXX: needs revisiting for write support */ 674 if (vap->va_flags != VNOVAL 675 || vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL 676 || vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL 677 || vap->va_birthtime.tv_sec != VNOVAL) { 678 return EROFS; 679 } 680 681 if (vap->va_size != VNOVAL) { 682 /* 683 * Disallow write attempts on read-only file systems; 684 * unless the file is a socket, fifo, or a block or 685 * character device resident on the file system. 686 */ 687 switch (vp->v_type) { 688 case VDIR: 689 return EISDIR; 690 case VCHR: 691 case VBLK: 692 case VFIFO: 693 break; 694 case VREG: 695 return EROFS; 696 default: 697 return EOPNOTSUPP; 698 } 699 } 700 701 return 0; 702 } 703 704 int 705 hfs_vop_bmap(void *v) 706 { 707 struct vop_bmap_args /* { 708 struct vnode *a_vp; 709 daddr_t a_bn; 710 struct vnode **a_vpp; 711 daddr_t *a_bnp; 712 int *a_runp; 713 } */ *ap = v; 714 struct vnode *vp; 715 struct hfsnode *hp; 716 daddr_t lblkno; 717 hfs_callback_args cbargs; 718 hfs_libcb_argsread argsread; 719 hfs_extent_descriptor_t *extents; 720 uint16_t numextents, i; 721 int bshift; 722 723 vp = ap->a_vp; 724 hp = VTOH(vp); 725 lblkno = ap->a_bn; 726 bshift = vp->v_mount->mnt_fs_bshift; 727 728 /* 729 * Check for underlying vnode requests and ensure that logical 730 * to physical mapping is requested. 731 */ 732 if (ap->a_vpp != NULL) 733 *ap->a_vpp = hp->h_devvp; 734 if (ap->a_bnp == NULL) 735 return (0); 736 737 hfslib_init_cbargs(&cbargs); 738 argsread.cred = NULL; 739 argsread.l = NULL; 740 cbargs.read = &argsread; 741 742 numextents = hfslib_get_file_extents(&hp->h_hmp->hm_vol, 743 hp->h_rec.u.cnid, hp->h_fork, &extents, &cbargs); 744 745 /* XXX: is this correct for 0-length files? */ 746 if (numextents == 0) 747 return EBADF; 748 749 for (i=0; i<numextents; i++) { 750 if (lblkno < extents[i].block_count) 751 break; 752 lblkno -= extents[i].block_count; 753 } 754 755 if (i == numextents) { 756 /* XXX: block number past EOF */ 757 i--; 758 lblkno += extents[i].block_count; 759 } 760 761 *ap->a_bnp = ((extents[i].start_block + lblkno) 762 << (bshift-DEV_BSHIFT)) 763 + (hp->h_hmp->hm_vol.offset >> DEV_BSHIFT); 764 765 if (ap->a_runp) { 766 int nblk; 767 768 nblk = extents[i].block_count - lblkno - 1; 769 if (nblk <= 0) 770 *ap->a_runp = 0; 771 else if (nblk > MAXBSIZE >> bshift) 772 *ap->a_runp = (MAXBSIZE >> bshift) - 1; 773 else 774 *ap->a_runp = nblk; 775 776 } 777 778 free(extents, /*M_HFSMNT*/ M_TEMP); 779 780 return 0; 781 } 782 783 int 784 hfs_vop_read(void *v) 785 { 786 struct vop_read_args /* { 787 struct vnode *a_vp; 788 struct uio *a_uio; 789 int a_ioflag; 790 kauth_cred_t a_cred; 791 } */ *ap = v; 792 struct vnode *vp; 793 struct hfsnode *hp; 794 struct uio *uio; 795 uint64_t fsize; /* logical size of file */ 796 int advice; 797 int error; 798 799 vp = ap->a_vp; 800 hp = VTOH(vp); 801 uio = ap->a_uio; 802 if (hp->h_fork == HFS_RSRCFORK) 803 fsize = hp->h_rec.file.rsrc_fork.logical_size; 804 else 805 fsize = hp->h_rec.file.data_fork.logical_size; 806 error = 0; 807 advice = IO_ADV_DECODE(ap->a_ioflag); 808 809 if (uio->uio_offset < 0) 810 return EINVAL; 811 812 if (uio->uio_resid == 0 || uio->uio_offset >= fsize) 813 return 0; 814 815 if (vp->v_type != VREG && vp->v_type != VLNK) 816 return EINVAL; 817 818 error = 0; 819 while (uio->uio_resid > 0 && error == 0) { 820 vsize_t len; 821 822 len = MIN(uio->uio_resid, fsize - uio->uio_offset); 823 if (len == 0) 824 break; 825 826 error = ubc_uiomove(&vp->v_uobj, uio, len, advice, 827 UBC_READ | UBC_PARTIALOK | UBC_UNMAP_FLAG(vp)); 828 } 829 830 return error; 831 } 832 833 int 834 hfs_vop_readdir(void *v) 835 { 836 struct vop_readdir_args /* { 837 struct vnode *a_vp; 838 struct uio *a_uio; 839 kauth_cred_t a_cred; 840 int *a_eofflag; 841 off_t **a_cookies; 842 int a_*ncookies; 843 } */ *ap = v; 844 845 #ifdef HFS_DEBUG 846 printf("VOP = hfs_vop_readdir()\n"); 847 #endif /* HFS_DEBUG */ 848 849 struct dirent curent; /* the dirent entry we're currently constructing */ 850 struct hfsnode *hp; 851 hfs_catalog_keyed_record_t *children; 852 hfs_unistr255_t *childnames; 853 hfs_callback_args cbargs; 854 hfs_libcb_argsread argsread; 855 struct uio *uio; 856 off_t bufoff; /* current position in buffer relative to start of dirents */ 857 uint32_t numchildren; 858 uint32_t curchild; /* index of child we're currently stuffing into dirent */ 859 size_t namlen; 860 int error; 861 int i; /* dummy variable */ 862 863 bufoff = 0; 864 children = NULL; 865 error = 0; 866 numchildren = 0; 867 hp = VTOH(ap->a_vp); 868 uio = ap->a_uio; 869 870 if (uio->uio_offset < 0) 871 return EINVAL; 872 if (ap->a_eofflag != NULL) 873 *ap->a_eofflag = 0; 874 875 /* XXX Inform that we don't support NFS, for now. */ 876 /* if(ap->a_eofflag != NULL || ap->a_cookies != NULL || ap->a_ncookies != NULL) 877 return EOPNOTSUPP;*/ 878 /*printf("READDIR uio: offset=%i, resid=%i\n", 879 (int)uio->uio_offset, (int)uio->uio_resid);*/ 880 hfslib_init_cbargs(&cbargs); 881 argsread.cred = ap->a_cred; 882 argsread.l = NULL; 883 cbargs.read = &argsread; 884 885 /* XXX Should we cache this? */ 886 if (hfslib_get_directory_contents(&hp->h_hmp->hm_vol, hp->h_rec.u.cnid, 887 &children, &childnames, &numchildren, &cbargs) != 0) { 888 /*printf("NOENT\n");*/ 889 error = ENOENT; 890 goto error; 891 } 892 893 /*printf("numchildren = %i\n", numchildren);*/ 894 for (curchild = 0; curchild < numchildren && uio->uio_resid>0; curchild++) { 895 namlen = utf16_to_utf8(curent.d_name, MAXNAMLEN, 896 childnames[curchild].unicode, 897 childnames[curchild].length, 898 0, NULL); 899 /* XXX: check conversion errors? */ 900 if (namlen > MAXNAMLEN) { 901 /* XXX: how to handle name too long? */ 902 continue; 903 } 904 curent.d_namlen = namlen; 905 curent.d_reclen = _DIRENT_SIZE(&curent); 906 907 /* Skip to desired dirent. */ 908 if ((bufoff += curent.d_reclen) - curent.d_reclen < uio->uio_offset) 909 continue; 910 911 /* Make sure we don't return partial entries. */ 912 if (uio->uio_resid < curent.d_reclen) { 913 /*printf("PARTIAL ENTRY\n");*/ 914 if (ap->a_eofflag != NULL) 915 *ap->a_eofflag = 1; 916 break; 917 } 918 919 curent.d_fileno = children[curchild].file.cnid; 920 switch (hfs_catalog_keyed_record_vtype(children+curchild)) { 921 case VREG: 922 curent.d_type = DT_REG; 923 break; 924 case VDIR: 925 curent.d_type = DT_DIR; 926 break; 927 case VBLK: 928 curent.d_type = DT_BLK; 929 break; 930 case VCHR: 931 curent.d_type = DT_CHR; 932 break; 933 case VLNK: 934 curent.d_type = DT_LNK; 935 break; 936 case VSOCK: 937 curent.d_type = DT_SOCK; 938 break; 939 case VFIFO: 940 curent.d_type = DT_FIFO; 941 break; 942 default: 943 curent.d_type = DT_UNKNOWN; 944 break; 945 } 946 /*printf("curchildname = %s\t\t", curchildname);*/ 947 /* pad curent.d_name to aligned byte boundary */ 948 for (i=curent.d_namlen; 949 i<curent.d_reclen-_DIRENT_NAMEOFF(&curent); i++) 950 curent.d_name[i] = 0; 951 952 /*printf("curent.d_name = %s\n", curent.d_name);*/ 953 954 if ((error = uiomove(&curent, curent.d_reclen, uio)) != 0) 955 goto error; 956 } 957 958 959 /* FALLTHROUGH */ 960 961 error: 962 if (numchildren > 0) { 963 if (children != NULL) 964 free(children, M_TEMP); 965 if (childnames != NULL) 966 free(childnames, M_TEMP); 967 } 968 969 /*if (error) 970 printf("ERROR = %i\n", error);*/ 971 return error; 972 } 973 974 int 975 hfs_vop_readlink(void *v) { 976 struct vop_readlink_args /* { 977 struct vnode *a_vp; 978 struct uio *a_uio; 979 kauth_cred_t a_cred; 980 } */ *ap = v; 981 982 return VOP_READ(ap->a_vp, ap->a_uio, 0, ap->a_cred); 983 } 984 985 int 986 hfs_vop_reclaim(void *v) 987 { 988 struct vop_reclaim_args /* { 989 struct vnode *a_vp; 990 } */ *ap = v; 991 struct vnode *vp; 992 struct hfsnode *hp; 993 struct hfsmount *hmp; 994 995 #ifdef HFS_DEBUG 996 printf("VOP = hfs_vop_reclaim()\n"); 997 #endif /* HFS_DEBUG */ 998 999 vp = ap->a_vp; 1000 hp = VTOH(vp); 1001 hmp = hp->h_hmp; 1002 1003 /* Remove the hfsnode from its hash chain. */ 1004 hfs_nhashremove(hp); 1005 1006 /* Purge name lookup cache. */ 1007 cache_purge(vp); 1008 1009 /* Decrement the reference count to the volume's device. */ 1010 if (hp->h_devvp) { 1011 vrele(hp->h_devvp); 1012 hp->h_devvp = 0; 1013 } 1014 1015 genfs_node_destroy(vp); 1016 free(vp->v_data, M_TEMP); 1017 vp->v_data = 0; 1018 1019 return 0; 1020 } 1021 1022 int 1023 hfs_vop_print(void *v) 1024 { 1025 struct vop_print_args /* { 1026 struct vnode *a_vp; 1027 } */ *ap = v; 1028 struct vnode *vp; 1029 struct hfsnode *hp; 1030 1031 #ifdef HFS_DEBUG 1032 printf("VOP = hfs_vop_print()\n"); 1033 #endif /* HFS_DEBUG */ 1034 1035 vp = ap->a_vp; 1036 hp = VTOH(vp); 1037 1038 printf("dummy = %X\n", (unsigned)hp->dummy); 1039 printf("\n"); 1040 1041 return 0; 1042 } 1043