ext2fs_vnops.c revision 1.111
1 /* $NetBSD: ext2fs_vnops.c,v 1.111 2014/03/24 13:42:40 hannken Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * (c) UNIX System Laboratories, Inc. 7 * All or some portions of this file are derived from material licensed 8 * to the University of California by American Telephone and Telegraph 9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 10 * the permission of UNIX System Laboratories, Inc. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)ufs_vnops.c 8.14 (Berkeley) 10/26/94 37 * Modified for ext2fs by Manuel Bouyer. 38 */ 39 40 /* 41 * Copyright (c) 1997 Manuel Bouyer. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 53 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 54 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 55 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 56 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 57 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 61 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 * 63 * @(#)ufs_vnops.c 8.14 (Berkeley) 10/26/94 64 * Modified for ext2fs by Manuel Bouyer. 65 */ 66 67 #include <sys/cdefs.h> 68 __KERNEL_RCSID(0, "$NetBSD: ext2fs_vnops.c,v 1.111 2014/03/24 13:42:40 hannken Exp $"); 69 70 #include <sys/param.h> 71 #include <sys/systm.h> 72 #include <sys/resourcevar.h> 73 #include <sys/kernel.h> 74 #include <sys/file.h> 75 #include <sys/stat.h> 76 #include <sys/buf.h> 77 #include <sys/proc.h> 78 #include <sys/mount.h> 79 #include <sys/namei.h> 80 #include <sys/vnode.h> 81 #include <sys/lockf.h> 82 #include <sys/malloc.h> 83 #include <sys/pool.h> 84 #include <sys/signalvar.h> 85 #include <sys/kauth.h> 86 87 #include <miscfs/fifofs/fifo.h> 88 #include <miscfs/genfs/genfs.h> 89 #include <miscfs/specfs/specdev.h> 90 91 #include <ufs/ufs/inode.h> 92 #include <ufs/ufs/ufs_extern.h> 93 #include <ufs/ufs/ufsmount.h> 94 95 #include <ufs/ext2fs/ext2fs.h> 96 #include <ufs/ext2fs/ext2fs_extern.h> 97 #include <ufs/ext2fs/ext2fs_dir.h> 98 99 extern int prtactive; 100 101 static int ext2fs_chmod(struct vnode *, int, kauth_cred_t, struct lwp *); 102 static int ext2fs_chown(struct vnode *, uid_t, gid_t, kauth_cred_t, 103 struct lwp *); 104 105 union _qcvt { 106 int64_t qcvt; 107 int32_t val[2]; 108 }; 109 110 #define SETHIGH(q, h) { \ 111 union _qcvt tmp; \ 112 tmp.qcvt = (q); \ 113 tmp.val[_QUAD_HIGHWORD] = (h); \ 114 (q) = tmp.qcvt; \ 115 } 116 #define SETLOW(q, l) { \ 117 union _qcvt tmp; \ 118 tmp.qcvt = (q); \ 119 tmp.val[_QUAD_LOWWORD] = (l); \ 120 (q) = tmp.qcvt; \ 121 } 122 123 /* 124 * Create a regular file 125 */ 126 int 127 ext2fs_create(void *v) 128 { 129 struct vop_create_v3_args /* { 130 struct vnode *a_dvp; 131 struct vnode **a_vpp; 132 struct componentname *a_cnp; 133 struct vattr *a_vap; 134 } */ *ap = v; 135 int error; 136 137 error = 138 ext2fs_makeinode(MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode), 139 ap->a_dvp, ap->a_vpp, ap->a_cnp); 140 141 if (error) 142 return (error); 143 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 144 VOP_UNLOCK(*ap->a_vpp); 145 return (0); 146 } 147 148 /* 149 * Mknod vnode call 150 */ 151 /* ARGSUSED */ 152 int 153 ext2fs_mknod(void *v) 154 { 155 struct vop_mknod_v3_args /* { 156 struct vnode *a_dvp; 157 struct vnode **a_vpp; 158 struct componentname *a_cnp; 159 struct vattr *a_vap; 160 } */ *ap = v; 161 struct vattr *vap = ap->a_vap; 162 struct vnode **vpp = ap->a_vpp; 163 struct inode *ip; 164 int error; 165 struct mount *mp; 166 ino_t ino; 167 168 if ((error = ext2fs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode), 169 ap->a_dvp, vpp, ap->a_cnp)) != 0) 170 return (error); 171 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 172 ip = VTOI(*vpp); 173 mp = (*vpp)->v_mount; 174 ino = ip->i_number; 175 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 176 if (vap->va_rdev != VNOVAL) { 177 /* 178 * Want to be able to use this to make badblock 179 * inodes, so don't truncate the dev number. 180 */ 181 ip->i_din.e2fs_din->e2di_rdev = h2fs32(vap->va_rdev); 182 } 183 /* 184 * Remove inode so that it will be reloaded by VFS_VGET and 185 * checked to see if it is an alias of an existing entry in 186 * the inode cache. 187 */ 188 (*vpp)->v_type = VNON; 189 VOP_UNLOCK(*vpp); 190 vgone(*vpp); 191 error = VFS_VGET(mp, ino, vpp); 192 if (error != 0) { 193 *vpp = NULL; 194 return (error); 195 } 196 VOP_UNLOCK(*vpp); 197 return (0); 198 } 199 200 /* 201 * Open called. 202 * 203 * Just check the APPEND flag. 204 */ 205 /* ARGSUSED */ 206 int 207 ext2fs_open(void *v) 208 { 209 struct vop_open_args /* { 210 struct vnode *a_vp; 211 int a_mode; 212 kauth_cred_t a_cred; 213 } */ *ap = v; 214 215 /* 216 * Files marked append-only must be opened for appending. 217 */ 218 if ((VTOI(ap->a_vp)->i_e2fs_flags & EXT2_APPEND) && 219 (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE) 220 return (EPERM); 221 return (0); 222 } 223 224 static int 225 ext2fs_check_possible(struct vnode *vp, struct inode *ip, mode_t mode) 226 { 227 228 /* 229 * Disallow write attempts on read-only file systems; 230 * unless the file is a socket, fifo, or a block or 231 * character device resident on the file system. 232 */ 233 if (mode & VWRITE) { 234 switch (vp->v_type) { 235 case VDIR: 236 case VLNK: 237 case VREG: 238 if (vp->v_mount->mnt_flag & MNT_RDONLY) 239 return (EROFS); 240 break; 241 default: 242 break; 243 } 244 } 245 246 /* If immutable bit set, nobody gets to write it. */ 247 if ((mode & VWRITE) && (ip->i_e2fs_flags & EXT2_IMMUTABLE)) 248 return (EPERM); 249 250 return 0; 251 } 252 253 static int 254 ext2fs_check_permitted(struct vnode *vp, struct inode *ip, mode_t mode, 255 kauth_cred_t cred) 256 { 257 258 return kauth_authorize_vnode(cred, KAUTH_ACCESS_ACTION(mode, vp->v_type, 259 ip->i_e2fs_mode & ALLPERMS), vp, NULL, genfs_can_access(vp->v_type, 260 ip->i_e2fs_mode & ALLPERMS, ip->i_uid, ip->i_gid, mode, cred)); 261 } 262 263 int 264 ext2fs_access(void *v) 265 { 266 struct vop_access_args /* { 267 struct vnode *a_vp; 268 int a_mode; 269 kauth_cred_t a_cred; 270 } */ *ap = v; 271 struct vnode *vp = ap->a_vp; 272 struct inode *ip = VTOI(vp); 273 mode_t mode = ap->a_mode; 274 int error; 275 276 error = ext2fs_check_possible(vp, ip, mode); 277 if (error) 278 return error; 279 280 error = ext2fs_check_permitted(vp, ip, mode, ap->a_cred); 281 282 return error; 283 } 284 285 /* ARGSUSED */ 286 int 287 ext2fs_getattr(void *v) 288 { 289 struct vop_getattr_args /* { 290 struct vnode *a_vp; 291 struct vattr *a_vap; 292 kauth_cred_t a_cred; 293 } */ *ap = v; 294 struct vnode *vp = ap->a_vp; 295 struct inode *ip = VTOI(vp); 296 struct vattr *vap = ap->a_vap; 297 298 EXT2FS_ITIMES(ip, NULL, NULL, NULL); 299 /* 300 * Copy from inode table 301 */ 302 vap->va_fsid = ip->i_dev; 303 vap->va_fileid = ip->i_number; 304 vap->va_mode = ip->i_e2fs_mode & ALLPERMS; 305 vap->va_nlink = ip->i_e2fs_nlink; 306 vap->va_uid = ip->i_uid; 307 vap->va_gid = ip->i_gid; 308 vap->va_rdev = (dev_t)fs2h32(ip->i_din.e2fs_din->e2di_rdev); 309 vap->va_size = vp->v_size; 310 vap->va_atime.tv_sec = ip->i_e2fs_atime; 311 vap->va_atime.tv_nsec = 0; 312 vap->va_mtime.tv_sec = ip->i_e2fs_mtime; 313 vap->va_mtime.tv_nsec = 0; 314 vap->va_ctime.tv_sec = ip->i_e2fs_ctime; 315 vap->va_ctime.tv_nsec = 0; 316 #ifdef EXT2FS_SYSTEM_FLAGS 317 vap->va_flags = (ip->i_e2fs_flags & EXT2_APPEND) ? SF_APPEND : 0; 318 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? SF_IMMUTABLE : 0; 319 #else 320 vap->va_flags = (ip->i_e2fs_flags & EXT2_APPEND) ? UF_APPEND : 0; 321 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? UF_IMMUTABLE : 0; 322 #endif 323 vap->va_gen = ip->i_e2fs_gen; 324 /* this doesn't belong here */ 325 if (vp->v_type == VBLK) 326 vap->va_blocksize = BLKDEV_IOSIZE; 327 else if (vp->v_type == VCHR) 328 vap->va_blocksize = MAXBSIZE; 329 else 330 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; 331 vap->va_bytes = dbtob(ext2fs_nblock(ip)); 332 vap->va_type = vp->v_type; 333 vap->va_filerev = ip->i_modrev; 334 return (0); 335 } 336 337 /* 338 * Set attribute vnode op. called from several syscalls 339 */ 340 int 341 ext2fs_setattr(void *v) 342 { 343 struct vop_setattr_args /* { 344 struct vnode *a_vp; 345 struct vattr *a_vap; 346 kauth_cred_t a_cred; 347 } */ *ap = v; 348 struct vattr *vap = ap->a_vap; 349 struct vnode *vp = ap->a_vp; 350 struct inode *ip = VTOI(vp); 351 kauth_cred_t cred = ap->a_cred; 352 struct lwp *l = curlwp; 353 int error; 354 kauth_action_t action = KAUTH_VNODE_WRITE_FLAGS; 355 bool changing_sysflags = false; 356 357 /* 358 * Check for unsettable attributes. 359 */ 360 if ((vap->va_type != VNON) || (vap->va_nlink != (nlink_t)VNOVAL) || 361 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) || 362 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) || 363 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) { 364 return (EINVAL); 365 } 366 if (vap->va_flags != VNOVAL) { 367 if (vp->v_mount->mnt_flag & MNT_RDONLY) 368 return (EROFS); 369 370 /* 371 * Check if we're allowed to change the flags. 372 * If EXT2FS_SYSTEM_FLAGS is set, then the flags are treated 373 * as system flags, otherwise they're considered to be user 374 * flags. 375 */ 376 #ifdef EXT2FS_SYSTEM_FLAGS 377 /* Indicate we're changing system flags if we are. */ 378 if ((vap->va_flags & SF_APPEND) || 379 (vap->va_flags & SF_IMMUTABLE)) { 380 action |= KAUTH_VNODE_WRITE_SYSFLAGS; 381 changing_sysflags = true; 382 } 383 384 /* Indicate the node has system flags if it does. */ 385 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) { 386 action |= KAUTH_VNODE_HAS_SYSFLAGS; 387 } 388 #endif /* EXT2FS_SYSTEM_FLAGS */ 389 390 error = kauth_authorize_vnode(cred, action, vp, NULL, 391 genfs_can_chflags(cred, vp->v_type, ip->i_uid, 392 changing_sysflags)); 393 if (error) 394 return (error); 395 396 #ifdef EXT2FS_SYSTEM_FLAGS 397 ip->i_e2fs_flags &= ~(EXT2_APPEND | EXT2_IMMUTABLE); 398 ip->i_e2fs_flags |= 399 (vap->va_flags & SF_APPEND) ? EXT2_APPEND : 0 | 400 (vap->va_flags & SF_IMMUTABLE) ? EXT2_IMMUTABLE : 0; 401 #else 402 ip->i_e2fs_flags &= ~(EXT2_APPEND | EXT2_IMMUTABLE); 403 ip->i_e2fs_flags |= 404 (vap->va_flags & UF_APPEND) ? EXT2_APPEND : 0 | 405 (vap->va_flags & UF_IMMUTABLE) ? EXT2_IMMUTABLE : 0; 406 #endif 407 ip->i_flag |= IN_CHANGE; 408 if (vap->va_flags & (IMMUTABLE | APPEND)) 409 return (0); 410 } 411 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) 412 return (EPERM); 413 /* 414 * Go through the fields and update iff not VNOVAL. 415 */ 416 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) { 417 if (vp->v_mount->mnt_flag & MNT_RDONLY) 418 return (EROFS); 419 error = ext2fs_chown(vp, vap->va_uid, vap->va_gid, cred, l); 420 if (error) 421 return (error); 422 } 423 if (vap->va_size != VNOVAL) { 424 /* 425 * Disallow write attempts on read-only file systems; 426 * unless the file is a socket, fifo, or a block or 427 * character device resident on the file system. 428 */ 429 switch (vp->v_type) { 430 case VDIR: 431 return (EISDIR); 432 case VLNK: 433 case VREG: 434 if (vp->v_mount->mnt_flag & MNT_RDONLY) 435 return (EROFS); 436 default: 437 break; 438 } 439 error = ext2fs_truncate(vp, vap->va_size, 0, cred); 440 if (error) 441 return (error); 442 } 443 ip = VTOI(vp); 444 if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) { 445 if (vp->v_mount->mnt_flag & MNT_RDONLY) 446 return (EROFS); 447 error = kauth_authorize_vnode(cred, KAUTH_VNODE_WRITE_TIMES, vp, 448 NULL, genfs_can_chtimes(vp, vap->va_vaflags, ip->i_uid, 449 cred)); 450 if (error) 451 return (error); 452 if (vap->va_atime.tv_sec != VNOVAL) 453 if (!(vp->v_mount->mnt_flag & MNT_NOATIME)) 454 ip->i_flag |= IN_ACCESS; 455 if (vap->va_mtime.tv_sec != VNOVAL) { 456 ip->i_flag |= IN_CHANGE | IN_UPDATE; 457 if (vp->v_mount->mnt_flag & MNT_RELATIME) 458 ip->i_flag |= IN_ACCESS; 459 } 460 error = ext2fs_update(vp, &vap->va_atime, &vap->va_mtime, 461 UPDATE_WAIT); 462 if (error) 463 return (error); 464 } 465 error = 0; 466 if (vap->va_mode != (mode_t)VNOVAL) { 467 if (vp->v_mount->mnt_flag & MNT_RDONLY) 468 return (EROFS); 469 error = ext2fs_chmod(vp, (int)vap->va_mode, cred, l); 470 } 471 VN_KNOTE(vp, NOTE_ATTRIB); 472 return (error); 473 } 474 475 /* 476 * Change the mode on a file. 477 * Inode must be locked before calling. 478 */ 479 static int 480 ext2fs_chmod(struct vnode *vp, int mode, kauth_cred_t cred, struct lwp *l) 481 { 482 struct inode *ip = VTOI(vp); 483 int error; 484 485 error = kauth_authorize_vnode(cred, KAUTH_VNODE_WRITE_SECURITY, vp, 486 NULL, genfs_can_chmod(vp->v_type, cred, ip->i_uid, ip->i_gid, 487 mode)); 488 if (error) 489 return (error); 490 491 ip->i_e2fs_mode &= ~ALLPERMS; 492 ip->i_e2fs_mode |= (mode & ALLPERMS); 493 ip->i_flag |= IN_CHANGE; 494 return (0); 495 } 496 497 /* 498 * Perform chown operation on inode ip; 499 * inode must be locked prior to call. 500 */ 501 static int 502 ext2fs_chown(struct vnode *vp, uid_t uid, gid_t gid, kauth_cred_t cred, 503 struct lwp *l) 504 { 505 struct inode *ip = VTOI(vp); 506 uid_t ouid; 507 gid_t ogid; 508 int error; 509 510 if (uid == (uid_t)VNOVAL) 511 uid = ip->i_uid; 512 if (gid == (gid_t)VNOVAL) 513 gid = ip->i_gid; 514 515 error = kauth_authorize_vnode(cred, KAUTH_VNODE_CHANGE_OWNERSHIP, vp, 516 NULL, genfs_can_chown(cred, ip->i_uid, ip->i_gid, uid, gid)); 517 if (error) 518 return (error); 519 520 ogid = ip->i_gid; 521 ouid = ip->i_uid; 522 523 ip->i_e2fs_gid = gid & 0xffff; 524 ip->i_e2fs_uid = uid & 0xffff; 525 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 526 ip->i_e2fs_gid_high = (gid >> 16) & 0xffff; 527 ip->i_e2fs_uid_high = (uid >> 16) & 0xffff; 528 } else { 529 ip->i_e2fs_gid_high = 0; 530 ip->i_e2fs_uid_high = 0; 531 } 532 if (ouid != uid || ogid != gid) { 533 ext2fs_set_inode_guid(ip); 534 ip->i_flag |= IN_CHANGE; 535 } 536 if (ouid != uid && (ip->i_e2fs_mode & ISUID) && 537 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SUID, 538 vp, NULL, EPERM) != 0) 539 ip->i_e2fs_mode &= ~ISUID; 540 if (ogid != gid && (ip->i_e2fs_mode & ISGID) && 541 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SGID, 542 vp, NULL, EPERM) != 0) 543 ip->i_e2fs_mode &= ~ISGID; 544 return (0); 545 } 546 547 int 548 ext2fs_remove(void *v) 549 { 550 struct vop_remove_args /* { 551 struct vnode *a_dvp; 552 struct vnode *a_vp; 553 struct componentname *a_cnp; 554 } */ *ap = v; 555 struct inode *ip; 556 struct vnode *vp = ap->a_vp; 557 struct vnode *dvp = ap->a_dvp; 558 struct ufs_lookup_results *ulr; 559 int error; 560 561 /* XXX should handle this material another way */ 562 ulr = &VTOI(dvp)->i_crap; 563 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 564 565 ip = VTOI(vp); 566 if (vp->v_type == VDIR || 567 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) || 568 (VTOI(dvp)->i_e2fs_flags & EXT2_APPEND)) { 569 error = EPERM; 570 } else { 571 error = ext2fs_dirremove(dvp, ulr, ap->a_cnp); 572 if (error == 0) { 573 ip->i_e2fs_nlink--; 574 ip->i_flag |= IN_CHANGE; 575 } 576 } 577 578 VN_KNOTE(vp, NOTE_DELETE); 579 VN_KNOTE(dvp, NOTE_WRITE); 580 if (dvp == vp) 581 vrele(vp); 582 else 583 vput(vp); 584 vput(dvp); 585 return (error); 586 } 587 588 /* 589 * ext2fs_link: create hard link. 590 */ 591 int 592 ext2fs_link(void *v) 593 { 594 struct vop_link_args /* { 595 struct vnode *a_dvp; 596 struct vnode *a_vp; 597 struct componentname *a_cnp; 598 } */ *ap = v; 599 struct vnode *dvp = ap->a_dvp; 600 struct vnode *vp = ap->a_vp; 601 struct componentname *cnp = ap->a_cnp; 602 struct inode *ip; 603 int error; 604 struct ufs_lookup_results *ulr; 605 606 KASSERT(dvp != vp); 607 KASSERT(vp->v_type != VDIR); 608 KASSERT(dvp->v_mount == vp->v_mount); 609 610 /* XXX should handle this material another way */ 611 ulr = &VTOI(dvp)->i_crap; 612 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 613 614 error = vn_lock(vp, LK_EXCLUSIVE); 615 if (error) { 616 VOP_ABORTOP(dvp, cnp); 617 goto out2; 618 } 619 ip = VTOI(vp); 620 if ((nlink_t)ip->i_e2fs_nlink >= LINK_MAX) { 621 VOP_ABORTOP(dvp, cnp); 622 error = EMLINK; 623 goto out1; 624 } 625 if (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) { 626 VOP_ABORTOP(dvp, cnp); 627 error = EPERM; 628 goto out1; 629 } 630 ip->i_e2fs_nlink++; 631 ip->i_flag |= IN_CHANGE; 632 error = ext2fs_update(vp, NULL, NULL, UPDATE_WAIT); 633 if (!error) 634 error = ext2fs_direnter(ip, dvp, ulr, cnp); 635 if (error) { 636 ip->i_e2fs_nlink--; 637 ip->i_flag |= IN_CHANGE; 638 } 639 out1: 640 VOP_UNLOCK(vp); 641 out2: 642 VN_KNOTE(vp, NOTE_LINK); 643 VN_KNOTE(dvp, NOTE_WRITE); 644 vput(dvp); 645 return (error); 646 } 647 648 /* 649 * Mkdir system call 650 */ 651 int 652 ext2fs_mkdir(void *v) 653 { 654 struct vop_mkdir_v3_args /* { 655 struct vnode *a_dvp; 656 struct vnode **a_vpp; 657 struct componentname *a_cnp; 658 struct vattr *a_vap; 659 } */ *ap = v; 660 struct vnode *dvp = ap->a_dvp; 661 struct vattr *vap = ap->a_vap; 662 struct componentname *cnp = ap->a_cnp; 663 struct inode *ip, *dp = VTOI(dvp); 664 struct vnode *tvp; 665 struct ext2fs_dirtemplate dirtemplate; 666 int error, dmode; 667 struct ufs_lookup_results *ulr; 668 669 /* XXX should handle this material another way */ 670 ulr = &VTOI(dvp)->i_crap; 671 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 672 673 if ((nlink_t)dp->i_e2fs_nlink >= LINK_MAX) { 674 error = EMLINK; 675 goto out; 676 } 677 dmode = vap->va_mode & ACCESSPERMS; 678 dmode |= IFDIR; 679 /* 680 * Must simulate part of ext2fs_makeinode here to acquire the inode, 681 * but not have it entered in the parent directory. The entry is 682 * made later after writing "." and ".." entries. 683 */ 684 if ((error = ext2fs_valloc(dvp, dmode, cnp->cn_cred, &tvp)) != 0) 685 goto out; 686 ip = VTOI(tvp); 687 ip->i_uid = kauth_cred_geteuid(cnp->cn_cred); 688 ip->i_e2fs_uid = ip->i_uid & 0xffff; 689 ip->i_e2fs_gid = dp->i_e2fs_gid; 690 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 691 ip->i_e2fs_uid_high = (ip->i_uid >> 16) & 0xffff; 692 ip->i_e2fs_gid_high = dp->i_e2fs_gid_high; 693 } else { 694 ip->i_e2fs_uid_high = 0; 695 ip->i_e2fs_gid_high = 0; 696 } 697 ip->i_gid = ip->i_e2fs_gid | (ip->i_e2fs_gid_high << 16); 698 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 699 ip->i_e2fs_mode = dmode; 700 tvp->v_type = VDIR; /* Rest init'd in getnewvnode(). */ 701 ip->i_e2fs_nlink = 2; 702 703 /* 704 * Bump link count in parent directory 705 * to reflect work done below. Should 706 * be done before reference is created 707 * so reparation is possible if we crash. 708 */ 709 dp->i_e2fs_nlink++; 710 dp->i_flag |= IN_CHANGE; 711 if ((error = ext2fs_update(dvp, NULL, NULL, UPDATE_DIROP)) != 0) 712 goto bad; 713 714 /* Initialize directory with "." and ".." from static template. */ 715 memset(&dirtemplate, 0, sizeof(dirtemplate)); 716 dirtemplate.dot_ino = h2fs32(ip->i_number); 717 dirtemplate.dot_reclen = h2fs16(12); 718 dirtemplate.dot_namlen = 1; 719 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0 && 720 (ip->i_e2fs->e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE)) { 721 dirtemplate.dot_type = EXT2_FT_DIR; 722 } 723 dirtemplate.dot_name[0] = '.'; 724 dirtemplate.dotdot_ino = h2fs32(dp->i_number); 725 dirtemplate.dotdot_reclen = h2fs16(VTOI(dvp)->i_e2fs->e2fs_bsize - 12); 726 dirtemplate.dotdot_namlen = 2; 727 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0 && 728 (ip->i_e2fs->e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE)) { 729 dirtemplate.dotdot_type = EXT2_FT_DIR; 730 } 731 dirtemplate.dotdot_name[0] = dirtemplate.dotdot_name[1] = '.'; 732 error = vn_rdwr(UIO_WRITE, tvp, (void *)&dirtemplate, 733 sizeof (dirtemplate), (off_t)0, UIO_SYSSPACE, 734 IO_NODELOCKED|IO_SYNC, cnp->cn_cred, (size_t *)0, NULL); 735 if (error) { 736 dp->i_e2fs_nlink--; 737 dp->i_flag |= IN_CHANGE; 738 goto bad; 739 } 740 if (VTOI(dvp)->i_e2fs->e2fs_bsize > dvp->v_mount->mnt_stat.f_bsize) 741 panic("ext2fs_mkdir: blksize"); /* XXX should grow with balloc() */ 742 else { 743 error = ext2fs_setsize(ip, VTOI(dvp)->i_e2fs->e2fs_bsize); 744 if (error) { 745 dp->i_e2fs_nlink--; 746 dp->i_flag |= IN_CHANGE; 747 goto bad; 748 } 749 ip->i_flag |= IN_CHANGE; 750 uvm_vnp_setsize(tvp, ext2fs_size(ip)); 751 } 752 753 /* Directory set up, now install it's entry in the parent directory. */ 754 error = ext2fs_direnter(ip, dvp, ulr, cnp); 755 if (error != 0) { 756 dp->i_e2fs_nlink--; 757 dp->i_flag |= IN_CHANGE; 758 } 759 bad: 760 /* 761 * No need to do an explicit ext2fs_truncate here, vrele will do this 762 * for us because we set the link count to 0. 763 */ 764 if (error) { 765 ip->i_e2fs_nlink = 0; 766 ip->i_flag |= IN_CHANGE; 767 vput(tvp); 768 } else { 769 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK); 770 VOP_UNLOCK(tvp); 771 *ap->a_vpp = tvp; 772 } 773 out: 774 return (error); 775 } 776 777 /* 778 * Rmdir system call. 779 */ 780 int 781 ext2fs_rmdir(void *v) 782 { 783 struct vop_rmdir_args /* { 784 struct vnode *a_dvp; 785 struct vnode *a_vp; 786 struct componentname *a_cnp; 787 } */ *ap = v; 788 struct vnode *vp = ap->a_vp; 789 struct vnode *dvp = ap->a_dvp; 790 struct componentname *cnp = ap->a_cnp; 791 struct inode *ip, *dp; 792 int error; 793 struct ufs_lookup_results *ulr; 794 795 ip = VTOI(vp); 796 dp = VTOI(dvp); 797 798 /* XXX should handle this material another way */ 799 ulr = &dp->i_crap; 800 UFS_CHECK_CRAPCOUNTER(dp); 801 802 /* 803 * No rmdir "." please. 804 */ 805 if (dp == ip) { 806 vrele(dvp); 807 vput(vp); 808 return (EINVAL); 809 } 810 /* 811 * Verify the directory is empty (and valid). 812 * (Rmdir ".." won't be valid since 813 * ".." will contain a reference to 814 * the current directory and thus be 815 * non-empty.) 816 */ 817 error = 0; 818 if (ip->i_e2fs_nlink != 2 || 819 !ext2fs_dirempty(ip, dp->i_number, cnp->cn_cred)) { 820 error = ENOTEMPTY; 821 goto out; 822 } 823 if ((dp->i_e2fs_flags & EXT2_APPEND) || 824 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND))) { 825 error = EPERM; 826 goto out; 827 } 828 /* 829 * Delete reference to directory before purging 830 * inode. If we crash in between, the directory 831 * will be reattached to lost+found, 832 */ 833 error = ext2fs_dirremove(dvp, ulr, cnp); 834 if (error != 0) 835 goto out; 836 dp->i_e2fs_nlink--; 837 dp->i_flag |= IN_CHANGE; 838 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK); 839 cache_purge(dvp); 840 vput(dvp); 841 dvp = NULL; 842 /* 843 * Truncate inode. The only stuff left 844 * in the directory is "." and "..". The 845 * "." reference is inconsequential since 846 * we're quashing it. The ".." reference 847 * has already been adjusted above. We've 848 * removed the "." reference and the reference 849 * in the parent directory, but there may be 850 * other hard links so decrement by 2 and 851 * worry about them later. 852 */ 853 ip->i_e2fs_nlink -= 2; 854 error = ext2fs_truncate(vp, (off_t)0, IO_SYNC, cnp->cn_cred); 855 cache_purge(ITOV(ip)); 856 out: 857 VN_KNOTE(vp, NOTE_DELETE); 858 if (dvp) 859 vput(dvp); 860 vput(vp); 861 return (error); 862 } 863 864 /* 865 * symlink -- make a symbolic link 866 */ 867 int 868 ext2fs_symlink(void *v) 869 { 870 struct vop_symlink_v3_args /* { 871 struct vnode *a_dvp; 872 struct vnode **a_vpp; 873 struct componentname *a_cnp; 874 struct vattr *a_vap; 875 char *a_target; 876 } */ *ap = v; 877 struct vnode *vp, **vpp; 878 struct inode *ip; 879 int len, error; 880 881 vpp = ap->a_vpp; 882 error = ext2fs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp, 883 vpp, ap->a_cnp); 884 if (error) 885 return (error); 886 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 887 vp = *vpp; 888 len = strlen(ap->a_target); 889 ip = VTOI(vp); 890 if (len < ip->i_ump->um_maxsymlinklen) { 891 memcpy((char *)ip->i_din.e2fs_din->e2di_shortlink, ap->a_target, len); 892 error = ext2fs_setsize(ip, len); 893 if (error) 894 goto bad; 895 ip->i_flag |= IN_CHANGE | IN_UPDATE; 896 if (vp->v_mount->mnt_flag & MNT_RELATIME) 897 ip->i_flag |= IN_ACCESS; 898 uvm_vnp_setsize(vp, len); 899 } else 900 error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0, 901 UIO_SYSSPACE, IO_NODELOCKED, ap->a_cnp->cn_cred, 902 (size_t *)0, NULL); 903 bad: 904 VOP_UNLOCK(vp); 905 if (error) 906 vrele(vp); 907 return (error); 908 } 909 910 /* 911 * Return target name of a symbolic link 912 */ 913 int 914 ext2fs_readlink(void *v) 915 { 916 struct vop_readlink_args /* { 917 struct vnode *a_vp; 918 struct uio *a_uio; 919 kauth_cred_t a_cred; 920 } */ *ap = v; 921 struct vnode *vp = ap->a_vp; 922 struct inode *ip = VTOI(vp); 923 struct ufsmount *ump = ip->i_ump; 924 int isize; 925 926 isize = ext2fs_size(ip); 927 if (isize < ump->um_maxsymlinklen || 928 (ump->um_maxsymlinklen == 0 && ext2fs_nblock(ip) == 0)) { 929 uiomove((char *)ip->i_din.e2fs_din->e2di_shortlink, isize, ap->a_uio); 930 return (0); 931 } 932 return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred)); 933 } 934 935 /* 936 * Advisory record locking support 937 */ 938 int 939 ext2fs_advlock(void *v) 940 { 941 struct vop_advlock_args /* { 942 struct vnode *a_vp; 943 void * a_id; 944 int a_op; 945 struct flock *a_fl; 946 int a_flags; 947 } */ *ap = v; 948 struct inode *ip = VTOI(ap->a_vp); 949 950 return lf_advlock(ap, &ip->i_lockf, ext2fs_size(ip)); 951 } 952 953 int 954 ext2fs_fsync(void *v) 955 { 956 struct vop_fsync_args /* { 957 struct vnode *a_vp; 958 kauth_cred_t a_cred; 959 int a_flags; 960 off_t offlo; 961 off_t offhi; 962 struct proc *a_p; 963 } */ *ap = v; 964 struct vnode *vp = ap->a_vp; 965 int wait; 966 int error; 967 968 wait = (ap->a_flags & FSYNC_WAIT) != 0; 969 970 if (vp->v_type == VBLK) 971 error = spec_fsync(v); 972 else 973 error = vflushbuf(vp, ap->a_flags); 974 if (error == 0 && (ap->a_flags & FSYNC_DATAONLY) == 0) 975 error = ext2fs_update(vp, NULL, NULL, wait ? UPDATE_WAIT : 0); 976 977 if (error == 0 && ap->a_flags & FSYNC_CACHE) { 978 int l = 0; 979 error = VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &l, FWRITE, 980 curlwp->l_cred); 981 } 982 983 return error; 984 } 985 986 /* 987 * Initialize the vnode associated with a new inode, handle aliased 988 * vnodes. 989 */ 990 int 991 ext2fs_vinit(struct mount *mntp, int (**specops)(void *), 992 int (**fifoops)(void *), struct vnode **vpp) 993 { 994 struct timeval tv; 995 struct inode *ip; 996 struct vnode *vp; 997 998 vp = *vpp; 999 ip = VTOI(vp); 1000 switch(vp->v_type = IFTOVT(ip->i_e2fs_mode)) { 1001 case VCHR: 1002 case VBLK: 1003 vp->v_op = specops; 1004 spec_node_init(vp, fs2h32(ip->i_din.e2fs_din->e2di_rdev)); 1005 break; 1006 case VFIFO: 1007 vp->v_op = fifoops; 1008 break; 1009 case VNON: 1010 case VBAD: 1011 case VSOCK: 1012 case VLNK: 1013 case VDIR: 1014 case VREG: 1015 break; 1016 } 1017 if (ip->i_number == UFS_ROOTINO) 1018 vp->v_vflag |= VV_ROOT; 1019 /* 1020 * Initialize modrev times 1021 */ 1022 getmicrouptime(&tv); 1023 SETHIGH(ip->i_modrev, tv.tv_sec); 1024 SETLOW(ip->i_modrev, tv.tv_usec * 4294); 1025 *vpp = vp; 1026 return (0); 1027 } 1028 1029 /* 1030 * Allocate a new inode. 1031 */ 1032 int 1033 ext2fs_makeinode(int mode, struct vnode *dvp, struct vnode **vpp, 1034 struct componentname *cnp) 1035 { 1036 struct inode *ip, *pdir; 1037 struct vnode *tvp; 1038 int error; 1039 struct ufs_lookup_results *ulr; 1040 1041 pdir = VTOI(dvp); 1042 1043 /* XXX should handle this material another way */ 1044 ulr = &pdir->i_crap; 1045 UFS_CHECK_CRAPCOUNTER(pdir); 1046 1047 *vpp = NULL; 1048 if ((mode & IFMT) == 0) 1049 mode |= IFREG; 1050 1051 if ((error = ext2fs_valloc(dvp, mode, cnp->cn_cred, &tvp)) != 0) { 1052 return (error); 1053 } 1054 ip = VTOI(tvp); 1055 ip->i_uid = kauth_cred_geteuid(cnp->cn_cred); 1056 ip->i_e2fs_uid = ip->i_uid & 0xffff; 1057 ip->i_e2fs_gid = pdir->i_e2fs_gid; 1058 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 1059 ip->i_e2fs_uid_high = (ip->i_uid >> 16) & 0xffff; 1060 ip->i_e2fs_gid_high = pdir->i_e2fs_gid_high; 1061 } else { 1062 ip->i_e2fs_uid_high = 0; 1063 ip->i_e2fs_gid_high = 0; 1064 } 1065 ip->i_gid = ip->i_e2fs_gid | (ip->i_e2fs_gid_high << 16); 1066 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 1067 ip->i_e2fs_mode = mode; 1068 tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */ 1069 ip->i_e2fs_nlink = 1; 1070 1071 /* Authorize setting SGID if needed. */ 1072 if (ip->i_e2fs_mode & ISGID) { 1073 error = kauth_authorize_vnode(cnp->cn_cred, KAUTH_VNODE_WRITE_SECURITY, 1074 tvp, NULL, genfs_can_chmod(tvp->v_type, cnp->cn_cred, ip->i_uid, 1075 ip->i_gid, mode)); 1076 if (error) 1077 ip->i_e2fs_mode &= ~ISGID; 1078 } 1079 1080 /* 1081 * Make sure inode goes to disk before directory entry. 1082 */ 1083 if ((error = ext2fs_update(tvp, NULL, NULL, UPDATE_WAIT)) != 0) 1084 goto bad; 1085 error = ext2fs_direnter(ip, dvp, ulr, cnp); 1086 if (error != 0) 1087 goto bad; 1088 *vpp = tvp; 1089 return (0); 1090 1091 bad: 1092 /* 1093 * Write error occurred trying to update the inode 1094 * or the directory so must deallocate the inode. 1095 */ 1096 tvp->v_type = VNON; /* Stop explosion if VBLK */ 1097 ip->i_e2fs_nlink = 0; 1098 ip->i_flag |= IN_CHANGE; 1099 vput(tvp); 1100 return (error); 1101 } 1102 1103 /* 1104 * Reclaim an inode so that it can be used for other purposes. 1105 */ 1106 int 1107 ext2fs_reclaim(void *v) 1108 { 1109 struct vop_reclaim_args /* { 1110 struct vnode *a_vp; 1111 } */ *ap = v; 1112 struct vnode *vp = ap->a_vp; 1113 struct inode *ip = VTOI(vp); 1114 int error; 1115 1116 /* 1117 * The inode must be freed and updated before being removed 1118 * from its hash chain. Other threads trying to gain a hold 1119 * or lock on the inode will be stalled. 1120 */ 1121 if (ip->i_omode == 1 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) 1122 ext2fs_vfree(vp, ip->i_number, ip->i_e2fs_mode); 1123 if ((error = ufs_reclaim(vp)) != 0) 1124 return (error); 1125 if (ip->i_din.e2fs_din != NULL) 1126 pool_put(&ext2fs_dinode_pool, ip->i_din.e2fs_din); 1127 genfs_node_destroy(vp); 1128 pool_put(&ext2fs_inode_pool, vp->v_data); 1129 vp->v_data = NULL; 1130 return (0); 1131 } 1132 1133 /* Global vfs data structures for ext2fs. */ 1134 int (**ext2fs_vnodeop_p)(void *); 1135 const struct vnodeopv_entry_desc ext2fs_vnodeop_entries[] = { 1136 { &vop_default_desc, vn_default_error }, 1137 { &vop_lookup_desc, ext2fs_lookup }, /* lookup */ 1138 { &vop_create_desc, ext2fs_create }, /* create */ 1139 { &vop_mknod_desc, ext2fs_mknod }, /* mknod */ 1140 { &vop_open_desc, ext2fs_open }, /* open */ 1141 { &vop_close_desc, ufs_close }, /* close */ 1142 { &vop_access_desc, ext2fs_access }, /* access */ 1143 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1144 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1145 { &vop_read_desc, ext2fs_read }, /* read */ 1146 { &vop_write_desc, ext2fs_write }, /* write */ 1147 { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ 1148 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1149 { &vop_poll_desc, ufs_poll }, /* poll */ 1150 { &vop_kqfilter_desc, genfs_kqfilter }, /* kqfilter */ 1151 { &vop_revoke_desc, ufs_revoke }, /* revoke */ 1152 { &vop_mmap_desc, ufs_mmap }, /* mmap */ 1153 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1154 { &vop_seek_desc, ufs_seek }, /* seek */ 1155 { &vop_remove_desc, ext2fs_remove }, /* remove */ 1156 { &vop_link_desc, ext2fs_link }, /* link */ 1157 { &vop_rename_desc, ext2fs_rename }, /* rename */ 1158 { &vop_mkdir_desc, ext2fs_mkdir }, /* mkdir */ 1159 { &vop_rmdir_desc, ext2fs_rmdir }, /* rmdir */ 1160 { &vop_symlink_desc, ext2fs_symlink }, /* symlink */ 1161 { &vop_readdir_desc, ext2fs_readdir }, /* readdir */ 1162 { &vop_readlink_desc, ext2fs_readlink }, /* readlink */ 1163 { &vop_abortop_desc, ufs_abortop }, /* abortop */ 1164 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1165 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1166 { &vop_lock_desc, ufs_lock }, /* lock */ 1167 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1168 { &vop_bmap_desc, ext2fs_bmap }, /* bmap */ 1169 { &vop_strategy_desc, ufs_strategy }, /* strategy */ 1170 { &vop_print_desc, ufs_print }, /* print */ 1171 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1172 { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ 1173 { &vop_advlock_desc, ext2fs_advlock }, /* advlock */ 1174 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1175 { &vop_getpages_desc, genfs_getpages }, /* getpages */ 1176 { &vop_putpages_desc, genfs_putpages }, /* putpages */ 1177 { NULL, NULL } 1178 }; 1179 const struct vnodeopv_desc ext2fs_vnodeop_opv_desc = 1180 { &ext2fs_vnodeop_p, ext2fs_vnodeop_entries }; 1181 1182 int (**ext2fs_specop_p)(void *); 1183 const struct vnodeopv_entry_desc ext2fs_specop_entries[] = { 1184 { &vop_default_desc, vn_default_error }, 1185 { &vop_lookup_desc, spec_lookup }, /* lookup */ 1186 { &vop_create_desc, spec_create }, /* create */ 1187 { &vop_mknod_desc, spec_mknod }, /* mknod */ 1188 { &vop_open_desc, spec_open }, /* open */ 1189 { &vop_close_desc, ufsspec_close }, /* close */ 1190 { &vop_access_desc, ext2fs_access }, /* access */ 1191 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1192 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1193 { &vop_read_desc, ufsspec_read }, /* read */ 1194 { &vop_write_desc, ufsspec_write }, /* write */ 1195 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ 1196 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1197 { &vop_poll_desc, spec_poll }, /* poll */ 1198 { &vop_kqfilter_desc, spec_kqfilter }, /* kqfilter */ 1199 { &vop_revoke_desc, spec_revoke }, /* revoke */ 1200 { &vop_mmap_desc, spec_mmap }, /* mmap */ 1201 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1202 { &vop_seek_desc, spec_seek }, /* seek */ 1203 { &vop_remove_desc, spec_remove }, /* remove */ 1204 { &vop_link_desc, spec_link }, /* link */ 1205 { &vop_rename_desc, spec_rename }, /* rename */ 1206 { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ 1207 { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ 1208 { &vop_symlink_desc, spec_symlink }, /* symlink */ 1209 { &vop_readdir_desc, spec_readdir }, /* readdir */ 1210 { &vop_readlink_desc, spec_readlink }, /* readlink */ 1211 { &vop_abortop_desc, spec_abortop }, /* abortop */ 1212 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1213 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1214 { &vop_lock_desc, ufs_lock }, /* lock */ 1215 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1216 { &vop_bmap_desc, spec_bmap }, /* bmap */ 1217 { &vop_strategy_desc, spec_strategy }, /* strategy */ 1218 { &vop_print_desc, ufs_print }, /* print */ 1219 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1220 { &vop_pathconf_desc, spec_pathconf }, /* pathconf */ 1221 { &vop_advlock_desc, spec_advlock }, /* advlock */ 1222 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1223 { &vop_getpages_desc, spec_getpages }, /* getpages */ 1224 { &vop_putpages_desc, spec_putpages }, /* putpages */ 1225 { NULL, NULL } 1226 }; 1227 const struct vnodeopv_desc ext2fs_specop_opv_desc = 1228 { &ext2fs_specop_p, ext2fs_specop_entries }; 1229 1230 int (**ext2fs_fifoop_p)(void *); 1231 const struct vnodeopv_entry_desc ext2fs_fifoop_entries[] = { 1232 { &vop_default_desc, vn_default_error }, 1233 { &vop_lookup_desc, vn_fifo_bypass }, /* lookup */ 1234 { &vop_create_desc, vn_fifo_bypass }, /* create */ 1235 { &vop_mknod_desc, vn_fifo_bypass }, /* mknod */ 1236 { &vop_open_desc, vn_fifo_bypass }, /* open */ 1237 { &vop_close_desc, ufsfifo_close }, /* close */ 1238 { &vop_access_desc, ext2fs_access }, /* access */ 1239 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1240 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1241 { &vop_read_desc, ufsfifo_read }, /* read */ 1242 { &vop_write_desc, ufsfifo_write }, /* write */ 1243 { &vop_ioctl_desc, vn_fifo_bypass }, /* ioctl */ 1244 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1245 { &vop_poll_desc, vn_fifo_bypass }, /* poll */ 1246 { &vop_kqfilter_desc, vn_fifo_bypass }, /* kqfilter */ 1247 { &vop_revoke_desc, vn_fifo_bypass }, /* revoke */ 1248 { &vop_mmap_desc, vn_fifo_bypass }, /* mmap */ 1249 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1250 { &vop_seek_desc, vn_fifo_bypass }, /* seek */ 1251 { &vop_remove_desc, vn_fifo_bypass }, /* remove */ 1252 { &vop_link_desc, vn_fifo_bypass }, /* link */ 1253 { &vop_rename_desc, vn_fifo_bypass }, /* rename */ 1254 { &vop_mkdir_desc, vn_fifo_bypass }, /* mkdir */ 1255 { &vop_rmdir_desc, vn_fifo_bypass }, /* rmdir */ 1256 { &vop_symlink_desc, vn_fifo_bypass }, /* symlink */ 1257 { &vop_readdir_desc, vn_fifo_bypass }, /* readdir */ 1258 { &vop_readlink_desc, vn_fifo_bypass }, /* readlink */ 1259 { &vop_abortop_desc, vn_fifo_bypass }, /* abortop */ 1260 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1261 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1262 { &vop_lock_desc, ufs_lock }, /* lock */ 1263 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1264 { &vop_bmap_desc, vn_fifo_bypass }, /* bmap */ 1265 { &vop_strategy_desc, vn_fifo_bypass }, /* strategy */ 1266 { &vop_print_desc, ufs_print }, /* print */ 1267 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1268 { &vop_pathconf_desc, vn_fifo_bypass }, /* pathconf */ 1269 { &vop_advlock_desc, vn_fifo_bypass }, /* advlock */ 1270 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1271 { &vop_putpages_desc, vn_fifo_bypass }, /* putpages */ 1272 { NULL, NULL } 1273 }; 1274 const struct vnodeopv_desc ext2fs_fifoop_opv_desc = 1275 { &ext2fs_fifoop_p, ext2fs_fifoop_entries }; 1276
Indexes created Fri Sep 26 20:09:58 GMT 2025