1/* $NetBSD: ext2fs_vnops.c,v 1.139 2024/01/29 18:27:09 christos 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 1.139 2024/01/29 18:27:09 christos 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/pool.h> 83#include <sys/signalvar.h> 84#include <sys/kauth.h> 85 86#include <miscfs/fifofs/fifo.h> 87#include <miscfs/genfs/genfs.h> 88#include <miscfs/specfs/specdev.h> 89 90#include <ufs/ufs/inode.h> 91#include <ufs/ufs/ufs_extern.h> 92#include <ufs/ufs/ufsmount.h> 93 94#include <ufs/ext2fs/ext2fs.h> 95#include <ufs/ext2fs/ext2fs_extern.h> 96#include <ufs/ext2fs/ext2fs_dir.h> 97#include <ufs/ext2fs/ext2fs_xattr.h> 98 99extern int prtactive; 100 101static int ext2fs_chmod(struct vnode *, int, kauth_cred_t, struct lwp *); 102static int ext2fs_chown(struct vnode *, uid_t, gid_t, kauth_cred_t, 103 struct lwp *); 104static int ext2fs_makeinode(struct vattr *, struct vnode *, struct vnode **, 105 struct componentname *, int); 106 107union _qcvt { 108 int64_t qcvt; 109 int32_t val[2]; 110}; 111 112#define SETHIGH(q, h) { \ 113 union _qcvt tmp; \ 114 tmp.qcvt = (q); \ 115 tmp.val[_QUAD_HIGHWORD] = (h); \ 116 (q) = tmp.qcvt; \ 117} 118#define SETLOW(q, l) { \ 119 union _qcvt tmp; \ 120 tmp.qcvt = (q); \ 121 tmp.val[_QUAD_LOWWORD] = (l); \ 122 (q) = tmp.qcvt; \ 123} 124 125/* 126 * Create a regular file 127 */ 128int 129ext2fs_create(void *v) 130{ 131 struct vop_create_v3_args /* { 132 struct vnode *a_dvp; 133 struct vnode **a_vpp; 134 struct componentname *a_cnp; 135 struct vattr *a_vap; 136 } */ *ap = v; 137 int error; 138 139 error = ext2fs_makeinode(ap->a_vap, ap->a_dvp, ap->a_vpp, ap->a_cnp, 1); 140 141 if (error) 142 return error; 143 VOP_UNLOCK(*ap->a_vpp); 144 return 0; 145} 146 147/* 148 * Mknod vnode call 149 */ 150/* ARGSUSED */ 151int 152ext2fs_mknod(void *v) 153{ 154 struct vop_mknod_v3_args /* { 155 struct vnode *a_dvp; 156 struct vnode **a_vpp; 157 struct componentname *a_cnp; 158 struct vattr *a_vap; 159 } */ *ap = v; 160 struct vattr *vap = ap->a_vap; 161 struct vnode **vpp = ap->a_vpp; 162 struct inode *ip; 163 int error; 164 165 if ((error = ext2fs_makeinode(vap, ap->a_dvp, vpp, ap->a_cnp, 1)) != 0) 166 return error; 167 ip = VTOI(*vpp); 168 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 169 VOP_UNLOCK(*vpp); 170 return 0; 171} 172 173/* 174 * Open called. 175 * 176 * Just check the APPEND flag. 177 */ 178/* ARGSUSED */ 179int 180ext2fs_open(void *v) 181{ 182 struct vop_open_args /* { 183 struct vnode *a_vp; 184 int a_mode; 185 kauth_cred_t a_cred; 186 } */ *ap = v; 187 188 /* 189 * Files marked append-only must be opened for appending. 190 */ 191 if ((VTOI(ap->a_vp)->i_e2fs_flags & EXT2_APPEND) && 192 (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE) 193 return EPERM; 194 return 0; 195} 196 197static int 198ext2fs_check_possible(struct vnode *vp, struct inode *ip, mode_t mode) 199{ 200 201 /* 202 * Disallow write attempts on read-only file systems; 203 * unless the file is a socket, fifo, or a block or 204 * character device resident on the file system. 205 */ 206 if (mode & VWRITE) { 207 switch (vp->v_type) { 208 case VDIR: 209 case VLNK: 210 case VREG: 211 if (vp->v_mount->mnt_flag & MNT_RDONLY) 212 return EROFS; 213 break; 214 default: 215 break; 216 } 217 } 218 219 /* If immutable bit set, nobody gets to write it. */ 220 if ((mode & VWRITE) && (ip->i_e2fs_flags & EXT2_IMMUTABLE)) 221 return EPERM; 222 223 return 0; 224} 225 226static int 227ext2fs_check_permitted(struct vnode *vp, struct inode *ip, accmode_t accmode, 228 kauth_cred_t cred) 229{ 230 231 return kauth_authorize_vnode(cred, KAUTH_ACCESS_ACTION(accmode, 232 vp->v_type, ip->i_e2fs_mode & ALLPERMS), vp, NULL, 233 genfs_can_access(vp, cred, ip->i_uid, ip->i_gid, 234 ip->i_e2fs_mode & ALLPERMS, NULL, accmode)); 235} 236 237int 238ext2fs_access(void *v) 239{ 240 struct vop_access_args /* { 241 struct vnode *a_vp; 242 accmode_t a_accmode; 243 kauth_cred_t a_cred; 244 } */ *ap = v; 245 struct vnode *vp = ap->a_vp; 246 struct inode *ip = VTOI(vp); 247 accmode_t mode = ap->a_accmode; 248 int error; 249 250 error = ext2fs_check_possible(vp, ip, mode); 251 if (error) 252 return error; 253 254 error = ext2fs_check_permitted(vp, ip, mode, ap->a_cred); 255 256 return error; 257} 258 259/* ARGSUSED */ 260int 261ext2fs_getattr(void *v) 262{ 263 struct vop_getattr_args /* { 264 struct vnode *a_vp; 265 struct vattr *a_vap; 266 kauth_cred_t a_cred; 267 } */ *ap = v; 268 struct vnode *vp = ap->a_vp; 269 struct inode *ip = VTOI(vp); 270 struct vattr *vap = ap->a_vap; 271 272 EXT2FS_ITIMES(ip, NULL, NULL, NULL); 273 /* 274 * Copy from inode table 275 */ 276 vap->va_fsid = ip->i_dev; 277 vap->va_fileid = ip->i_number; 278 vap->va_mode = ip->i_e2fs_mode & ALLPERMS; 279 vap->va_nlink = ip->i_e2fs_nlink; 280 vap->va_uid = ip->i_uid; 281 vap->va_gid = ip->i_gid; 282 vap->va_rdev = (dev_t)fs2h32(ip->i_din.e2fs_din->e2di_rdev); 283 vap->va_size = vp->v_size; 284 EXT2_DINODE_TIME_GET(&vap->va_atime, ip->i_din.e2fs_din, e2di_atime, EXT2_DINODE_SIZE(ip->i_e2fs)); 285 EXT2_DINODE_TIME_GET(&vap->va_mtime, ip->i_din.e2fs_din, e2di_mtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 286 EXT2_DINODE_TIME_GET(&vap->va_ctime, ip->i_din.e2fs_din, e2di_ctime, EXT2_DINODE_SIZE(ip->i_e2fs)); 287 if (EXT2_DINODE_FITS(ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs))) { 288 EXT2_DINODE_TIME_GET(&vap->va_birthtime, ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 289 } 290 291 vap->va_flags = 0; 292 vap->va_flags |= (ip->i_e2fs_flags & EXT2_NODUMP) ? UF_NODUMP : 0; 293 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? SF_IMMUTABLE : 0; 294 vap->va_flags |= (ip->i_e2fs_flags & EXT2_APPEND) ? SF_APPEND : 0; 295 296 vap->va_gen = ip->i_e2fs_gen; 297 /* this doesn't belong here */ 298 if (vp->v_type == VBLK) 299 vap->va_blocksize = BLKDEV_IOSIZE; 300 else if (vp->v_type == VCHR) 301 vap->va_blocksize = MAXBSIZE; 302 else 303 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; 304 vap->va_bytes = dbtob(ext2fs_nblock(ip)); 305 vap->va_type = vp->v_type; 306 vap->va_filerev = ip->i_modrev; 307 return 0; 308} 309 310/* 311 * Set attribute vnode op. called from several syscalls 312 */ 313int 314ext2fs_setattr(void *v) 315{ 316 struct vop_setattr_args /* { 317 struct vnode *a_vp; 318 struct vattr *a_vap; 319 kauth_cred_t a_cred; 320 } */ *ap = v; 321 struct vattr *vap = ap->a_vap; 322 struct vnode *vp = ap->a_vp; 323 struct inode *ip = VTOI(vp); 324 kauth_cred_t cred = ap->a_cred; 325 struct lwp *l = curlwp; 326 int error; 327 kauth_action_t action = KAUTH_VNODE_WRITE_FLAGS; 328 bool changing_sysflags = false; 329 330 /* 331 * Check for unsettable attributes. 332 */ 333 if ((vap->va_type != VNON) || (vap->va_nlink != (nlink_t)VNOVAL) || 334 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) || 335 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) || 336 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) { 337 return EINVAL; 338 } 339 if (vap->va_flags != VNOVAL) { 340 if (vp->v_mount->mnt_flag & MNT_RDONLY) 341 return EROFS; 342 343 /* Indicate we're changing system flags if we are. */ 344 if ((vap->va_flags & SF_APPEND) || 345 (vap->va_flags & SF_IMMUTABLE)) { 346 action |= KAUTH_VNODE_WRITE_SYSFLAGS; 347 changing_sysflags = true; 348 } 349 350 /* Indicate the node has system flags if it does. */ 351 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) { 352 action |= KAUTH_VNODE_HAS_SYSFLAGS; 353 } 354 355 error = kauth_authorize_vnode(cred, action, vp, NULL, 356 genfs_can_chflags(vp, cred, ip->i_uid, changing_sysflags)); 357 if (error) 358 return error; 359 360 ip->i_e2fs_flags &= ~(EXT2_APPEND | EXT2_IMMUTABLE | EXT2_NODUMP); 361 ip->i_e2fs_flags |= 362 (vap->va_flags & SF_APPEND) ? EXT2_APPEND : 0 | 363 (vap->va_flags & SF_IMMUTABLE) ? EXT2_IMMUTABLE : 0; 364 ip->i_e2fs_flags |= 365 (vap->va_flags & UF_NODUMP) ? EXT2_NODUMP : 0; 366 ip->i_flag |= IN_CHANGE; 367 if (vap->va_flags & (IMMUTABLE | APPEND)) 368 return 0; 369 } 370 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) 371 return EPERM; 372 /* 373 * Go through the fields and update iff not VNOVAL. 374 */ 375 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) { 376 if (vp->v_mount->mnt_flag & MNT_RDONLY) 377 return EROFS; 378 error = ext2fs_chown(vp, vap->va_uid, vap->va_gid, cred, l); 379 if (error) 380 return error; 381 } 382 if (vap->va_size != VNOVAL) { 383 /* 384 * Disallow write attempts on read-only file systems; 385 * unless the file is a socket, fifo, or a block or 386 * character device resident on the file system. 387 */ 388 switch (vp->v_type) { 389 case VDIR: 390 return EISDIR; 391 case VLNK: 392 case VREG: 393 if (vp->v_mount->mnt_flag & MNT_RDONLY) 394 return EROFS; 395 default: 396 break; 397 } 398 error = ext2fs_truncate(vp, vap->va_size, 0, cred); 399 if (error) 400 return error; 401 } 402 ip = VTOI(vp); 403 if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL || vap->va_birthtime.tv_sec != VNOVAL) { 404 if (vp->v_mount->mnt_flag & MNT_RDONLY) 405 return EROFS; 406 error = kauth_authorize_vnode(cred, KAUTH_VNODE_WRITE_TIMES, vp, 407 NULL, genfs_can_chtimes(vp, cred, ip->i_uid, 408 vap->va_vaflags)); 409 if (error) 410 return error; 411 if (vap->va_atime.tv_sec != VNOVAL) 412 if (!(vp->v_mount->mnt_flag & MNT_NOATIME)) 413 ip->i_flag |= IN_ACCESS; 414 if (vap->va_mtime.tv_sec != VNOVAL) { 415 ip->i_flag |= IN_CHANGE | IN_UPDATE; 416 if (vp->v_mount->mnt_flag & MNT_RELATIME) 417 ip->i_flag |= IN_ACCESS; 418 } 419 if (vap->va_birthtime.tv_sec != VNOVAL && 420 EXT2_DINODE_FITS(ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs))) { 421 422 EXT2_DINODE_TIME_SET(&vap->va_birthtime, ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 423 } 424 error = ext2fs_update(vp, &vap->va_atime, &vap->va_mtime, 425 UPDATE_WAIT); 426 if (error) 427 return error; 428 } 429 error = 0; 430 if (vap->va_mode != (mode_t)VNOVAL) { 431 if (vp->v_mount->mnt_flag & MNT_RDONLY) 432 return EROFS; 433 error = ext2fs_chmod(vp, (int)vap->va_mode, cred, l); 434 } 435 return error; 436} 437 438/* 439 * Change the mode on a file. 440 * Inode must be locked before calling. 441 */ 442static int 443ext2fs_chmod(struct vnode *vp, int mode, kauth_cred_t cred, struct lwp *l) 444{ 445 struct inode *ip = VTOI(vp); 446 int error; 447 448 error = kauth_authorize_vnode(cred, KAUTH_VNODE_WRITE_SECURITY, vp, 449 NULL, genfs_can_chmod(vp, cred, ip->i_uid, ip->i_gid, mode)); 450 if (error) 451 return error; 452 453 ip->i_e2fs_mode &= ~ALLPERMS; 454 ip->i_e2fs_mode |= (mode & ALLPERMS); 455 ip->i_flag |= IN_CHANGE; 456 return 0; 457} 458 459/* 460 * Perform chown operation on inode ip; 461 * inode must be locked prior to call. 462 */ 463static int 464ext2fs_chown(struct vnode *vp, uid_t uid, gid_t gid, kauth_cred_t cred, 465 struct lwp *l) 466{ 467 struct inode *ip = VTOI(vp); 468 uid_t ouid; 469 gid_t ogid; 470 int error; 471 472 if (uid == (uid_t)VNOVAL) 473 uid = ip->i_uid; 474 if (gid == (gid_t)VNOVAL) 475 gid = ip->i_gid; 476 477 error = kauth_authorize_vnode(cred, KAUTH_VNODE_CHANGE_OWNERSHIP, vp, 478 NULL, genfs_can_chown(vp, cred, ip->i_uid, ip->i_gid, uid, gid)); 479 if (error) 480 return error; 481 482 ogid = ip->i_gid; 483 ouid = ip->i_uid; 484 485 ip->i_e2fs_gid = gid & 0xffff; 486 ip->i_e2fs_uid = uid & 0xffff; 487 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 488 ip->i_e2fs_gid_high = (gid >> 16) & 0xffff; 489 ip->i_e2fs_uid_high = (uid >> 16) & 0xffff; 490 } else { 491 ip->i_e2fs_gid_high = 0; 492 ip->i_e2fs_uid_high = 0; 493 } 494 if (ouid != uid || ogid != gid) { 495 ext2fs_set_inode_guid(ip); 496 ip->i_flag |= IN_CHANGE; 497 } 498 if (ouid != uid && (ip->i_e2fs_mode & ISUID) && 499 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SUID, 500 vp, NULL, EPERM) != 0) 501 ip->i_e2fs_mode &= ~ISUID; 502 if (ogid != gid && (ip->i_e2fs_mode & ISGID) && 503 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SGID, 504 vp, NULL, EPERM) != 0) 505 ip->i_e2fs_mode &= ~ISGID; 506 return 0; 507} 508 509int 510ext2fs_remove(void *v) 511{ 512 struct vop_remove_v3_args /* { 513 struct vnode *a_dvp; 514 struct vnode *a_vp; 515 struct componentname *a_cnp; 516 nlink_t ctx_vp_new_nlink; 517 } */ *ap = v; 518 struct inode *ip; 519 struct vnode *vp = ap->a_vp; 520 struct vnode *dvp = ap->a_dvp; 521 struct ufs_lookup_results *ulr; 522 int error; 523 524 /* XXX should handle this material another way */ 525 ulr = &VTOI(dvp)->i_crap; 526 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 527 528 ip = VTOI(vp); 529 if (vp->v_type == VDIR || 530 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) || 531 (VTOI(dvp)->i_e2fs_flags & EXT2_APPEND)) { 532 error = EPERM; 533 } else { 534 error = ext2fs_dirremove(dvp, ulr, ap->a_cnp); 535 if (error == 0) { 536 ip->i_e2fs_nlink--; 537 ip->i_flag |= IN_CHANGE; 538 ap->ctx_vp_new_nlink = ip->i_e2fs_nlink; 539 } 540 } 541 542 if (dvp == vp) 543 vrele(vp); 544 else 545 vput(vp); 546 return error; 547} 548 549/* 550 * ext2fs_link: create hard link. 551 */ 552int 553ext2fs_link(void *v) 554{ 555 struct vop_link_v2_args /* { 556 struct vnode *a_dvp; 557 struct vnode *a_vp; 558 struct componentname *a_cnp; 559 } */ *ap = v; 560 struct vnode *dvp = ap->a_dvp; 561 struct vnode *vp = ap->a_vp; 562 struct componentname *cnp = ap->a_cnp; 563 struct inode *ip; 564 int error, abrt = 1; 565 struct ufs_lookup_results *ulr; 566 567 KASSERT(dvp != vp); 568 KASSERT(vp->v_type != VDIR); 569 KASSERT(dvp->v_mount == vp->v_mount); 570 571 /* XXX should handle this material another way */ 572 ulr = &VTOI(dvp)->i_crap; 573 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 574 575 error = vn_lock(vp, LK_EXCLUSIVE); 576 if (error) 577 goto out2; 578 error = kauth_authorize_vnode(cnp->cn_cred, KAUTH_VNODE_ADD_LINK, vp, 579 dvp, 0); 580 if (error) 581 goto out1; 582 ip = VTOI(vp); 583 if ((nlink_t)ip->i_e2fs_nlink >= EXT2FS_LINK_MAX) { 584 error = EMLINK; 585 goto out1; 586 } 587 if (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) { 588 error = EPERM; 589 goto out1; 590 } 591 ip->i_e2fs_nlink++; 592 ip->i_flag |= IN_CHANGE; 593 abrt = 0; 594 error = ext2fs_update(vp, NULL, NULL, UPDATE_WAIT); 595 if (!error) 596 error = ext2fs_direnter(ip, dvp, ulr, cnp); 597 if (error) { 598 ip->i_e2fs_nlink--; 599 ip->i_flag |= IN_CHANGE; 600 } 601out1: 602 VOP_UNLOCK(vp); 603out2: 604 if (abrt) 605 VOP_ABORTOP(dvp, cnp); 606 return error; 607} 608 609/* 610 * Mkdir system call 611 */ 612int 613ext2fs_mkdir(void *v) 614{ 615 struct vop_mkdir_v3_args /* { 616 struct vnode *a_dvp; 617 struct vnode **a_vpp; 618 struct componentname *a_cnp; 619 struct vattr *a_vap; 620 } */ *ap = v; 621 struct vnode *dvp = ap->a_dvp; 622 struct componentname *cnp = ap->a_cnp; 623 struct inode *ip, *dp = VTOI(dvp); 624 struct vnode *tvp; 625 struct ext2fs_dirtemplate dirtemplate; 626 int error; 627 struct ufs_lookup_results *ulr; 628 629 /* XXX should handle this material another way */ 630 ulr = &VTOI(dvp)->i_crap; 631 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 632 633 KASSERT(ap->a_vap->va_type == VDIR); 634 635 /* 636 * Acquire the inode, but don't sync/direnter it just yet 637 */ 638 error = ext2fs_makeinode(ap->a_vap, ap->a_dvp, &tvp, ap->a_cnp, 0); 639 if (error) 640 goto out; 641 642 /* the link count is going to be 2 when all is done */ 643 ip = VTOI(tvp); 644 ip->i_e2fs_nlink = 2; 645 646 /* 647 * Bump link count in parent directory 648 * to reflect work done below. Should 649 * be done before reference is created 650 * so reparation is possible if we crash. 651 */ 652 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 653 dp->i_e2fs_nlink++; 654 655 /* 656 * If we hit the link limit, for directories just set the nlink 657 * to special value 1, which means the link count is bigger 658 * than EXT2FS_LINK_MAX. 659 */ 660 if ((nlink_t)dp->i_e2fs_nlink >= EXT2FS_LINK_MAX) { 661 dp->i_e2fs_nlink = EXT2FS_LINK_INF; 662 663 /* set the feature flag DIR_NLINK if not set already */ 664 if (!EXT2F_HAS_ROCOMPAT_FEATURE(dp->i_e2fs, EXT2F_ROCOMPAT_DIR_NLINK)) { 665 dp->i_e2fs->e2fs.e2fs_features_rocompat |= EXT2F_ROCOMPAT_DIR_NLINK; 666 dp->i_e2fs->e2fs_fmod = 1; 667 } 668 } 669 670 dp->i_flag |= IN_CHANGE; 671 if ((error = ext2fs_update(dvp, NULL, NULL, UPDATE_DIROP)) != 0) 672 goto bad; 673 674 /* Initialize directory with "." and ".." from static template. */ 675 memset(&dirtemplate, 0, sizeof(dirtemplate)); 676 dirtemplate.dot_ino = h2fs32(ip->i_number); 677 dirtemplate.dot_reclen = h2fs16(12); 678 dirtemplate.dot_namlen = 1; 679 if (EXT2F_HAS_INCOMPAT_FEATURE(dp->i_e2fs, EXT2F_INCOMPAT_FTYPE)) { 680 dirtemplate.dot_type = EXT2_FT_DIR; 681 } 682 dirtemplate.dot_name[0] = '.'; 683 dirtemplate.dotdot_ino = h2fs32(dp->i_number); 684 dirtemplate.dotdot_reclen = h2fs16(VTOI(dvp)->i_e2fs->e2fs_bsize - 12); 685 dirtemplate.dotdot_namlen = 2; 686 if (EXT2F_HAS_INCOMPAT_FEATURE(dp->i_e2fs, EXT2F_INCOMPAT_FTYPE)) { 687 dirtemplate.dotdot_type = EXT2_FT_DIR; 688 } 689 dirtemplate.dotdot_name[0] = dirtemplate.dotdot_name[1] = '.'; 690 error = ufs_bufio(UIO_WRITE, tvp, (void *)&dirtemplate, 691 sizeof (dirtemplate), (off_t)0, IO_NODELOCKED|IO_SYNC, 692 cnp->cn_cred, (size_t *)0, NULL); 693 if (error) { 694 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 695 dp->i_e2fs_nlink--; 696 dp->i_flag |= IN_CHANGE; 697 goto bad; 698 } 699 if (VTOI(dvp)->i_e2fs->e2fs_bsize > dvp->v_mount->mnt_stat.f_bsize) 700 panic("ext2fs_mkdir: blksize"); /* XXX should grow with balloc() */ 701 else { 702 error = ext2fs_setsize(ip, VTOI(dvp)->i_e2fs->e2fs_bsize); 703 if (error) { 704 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 705 dp->i_e2fs_nlink--; 706 dp->i_flag |= IN_CHANGE; 707 goto bad; 708 } 709 ip->i_flag |= IN_CHANGE; 710 uvm_vnp_setsize(tvp, ext2fs_size(ip)); 711 } 712 713 /* Directory set up, now install its entry in the parent directory. */ 714 error = ext2fs_direnter(ip, dvp, ulr, cnp); 715 if (error != 0) { 716 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 717 dp->i_e2fs_nlink--; 718 dp->i_flag |= IN_CHANGE; 719 } 720bad: 721 /* 722 * No need to do an explicit ext2fs_truncate here, vrele will do this 723 * for us because we set the link count to 0. 724 */ 725 if (error) { 726 ip->i_e2fs_nlink = 0; 727 ip->i_flag |= IN_CHANGE; 728 vput(tvp); 729 } else { 730 VOP_UNLOCK(tvp); 731 *ap->a_vpp = tvp; 732 } 733out: 734 return error; 735} 736 737/* 738 * Rmdir system call. 739 */ 740int 741ext2fs_rmdir(void *v) 742{ 743 struct vop_rmdir_v2_args /* { 744 struct vnode *a_dvp; 745 struct vnode *a_vp; 746 struct componentname *a_cnp; 747 } */ *ap = v; 748 struct vnode *vp = ap->a_vp; 749 struct vnode *dvp = ap->a_dvp; 750 struct componentname *cnp = ap->a_cnp; 751 struct inode *ip, *dp; 752 int error; 753 struct ufs_lookup_results *ulr; 754 755 ip = VTOI(vp); 756 dp = VTOI(dvp); 757 758 /* XXX should handle this material another way */ 759 ulr = &dp->i_crap; 760 UFS_CHECK_CRAPCOUNTER(dp); 761 762 /* 763 * No rmdir "." please. 764 */ 765 if (dp == ip) { 766 vrele(vp); 767 return EINVAL; 768 } 769 /* 770 * Verify the directory is empty (and valid). 771 * (Rmdir ".." won't be valid since 772 * ".." will contain a reference to 773 * the current directory and thus be 774 * non-empty.) 775 */ 776 error = 0; 777 if ((ip->i_e2fs_nlink != 2 && ip->i_e2fs_nlink != EXT2FS_LINK_INF) || 778 !ext2fs_dirempty(ip, dp->i_number, cnp->cn_cred)) { 779 error = ENOTEMPTY; 780 goto out; 781 } 782 if ((dp->i_e2fs_flags & EXT2_APPEND) || 783 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND))) { 784 error = EPERM; 785 goto out; 786 } 787 /* 788 * Delete reference to directory before purging 789 * inode. If we crash in between, the directory 790 * will be reattached to lost+found, 791 */ 792 error = ext2fs_dirremove(dvp, ulr, cnp); 793 if (error != 0) 794 goto out; 795 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 796 dp->i_e2fs_nlink--; 797 dp->i_flag |= IN_CHANGE; 798 cache_purge(dvp); 799 /* 800 * Truncate inode. The only stuff left 801 * in the directory is "." and "..". The 802 * "." reference is inconsequential since 803 * we're quashing it. The ".." reference 804 * has already been adjusted above. We've 805 * removed the "." reference and the reference 806 * in the parent directory, but there may be 807 * other hard links so decrement by 2 and 808 * worry about them later. 809 */ 810 ip->i_e2fs_nlink -= 2; 811 error = ext2fs_truncate(vp, (off_t)0, IO_SYNC, cnp->cn_cred); 812 cache_purge(ITOV(ip)); 813out: 814 vput(vp); 815 return error; 816} 817 818/* 819 * symlink -- make a symbolic link 820 */ 821int 822ext2fs_symlink(void *v) 823{ 824 struct vop_symlink_v3_args /* { 825 struct vnode *a_dvp; 826 struct vnode **a_vpp; 827 struct componentname *a_cnp; 828 struct vattr *a_vap; 829 char *a_target; 830 } */ *ap = v; 831 struct vnode *vp, **vpp; 832 struct inode *ip; 833 int len, error; 834 835 vpp = ap->a_vpp; 836 KASSERT(ap->a_vap->va_type == VLNK); 837 error = ext2fs_makeinode(ap->a_vap, ap->a_dvp, vpp, ap->a_cnp, 1); 838 if (error) 839 return error; 840 vp = *vpp; 841 len = strlen(ap->a_target); 842 ip = VTOI(vp); 843 if (len < ip->i_ump->um_maxsymlinklen) { 844 memcpy(ip->i_din.e2fs_din->e2di_shortlink, ap->a_target, len); 845 error = ext2fs_setsize(ip, len); 846 if (error) 847 goto bad; 848 ip->i_flag |= IN_CHANGE | IN_UPDATE; 849 if (vp->v_mount->mnt_flag & MNT_RELATIME) 850 ip->i_flag |= IN_ACCESS; 851 uvm_vnp_setsize(vp, len); 852 } else 853 error = ufs_bufio(UIO_WRITE, vp, ap->a_target, len, (off_t)0, 854 IO_NODELOCKED, ap->a_cnp->cn_cred, (size_t *)0, NULL); 855bad: 856 VOP_UNLOCK(vp); 857 if (error) 858 vrele(vp); 859 return error; 860} 861 862/* 863 * Return target name of a symbolic link 864 */ 865int 866ext2fs_readlink(void *v) 867{ 868 struct vop_readlink_args /* { 869 struct vnode *a_vp; 870 struct uio *a_uio; 871 kauth_cred_t a_cred; 872 } */ *ap = v; 873 struct vnode *vp = ap->a_vp; 874 struct inode *ip = VTOI(vp); 875 struct ufsmount *ump = ip->i_ump; 876 int isize; 877 878 isize = ext2fs_size(ip); 879 if (isize < ump->um_maxsymlinklen || 880 (ump->um_maxsymlinklen == 0 && ext2fs_nblock(ip) == 0)) { 881 uiomove(ip->i_din.e2fs_din->e2di_shortlink, isize, ap->a_uio); 882 return 0; 883 } 884 return UFS_BUFRD(vp, ap->a_uio, 0, ap->a_cred); 885} 886 887/* 888 * Advisory record locking support 889 */ 890int 891ext2fs_advlock(void *v) 892{ 893 struct vop_advlock_args /* { 894 struct vnode *a_vp; 895 void * a_id; 896 int a_op; 897 struct flock *a_fl; 898 int a_flags; 899 } */ *ap = v; 900 struct inode *ip = VTOI(ap->a_vp); 901 902 return lf_advlock(ap, &ip->i_lockf, ext2fs_size(ip)); 903} 904 905int 906ext2fs_fsync(void *v) 907{ 908 struct vop_fsync_args /* { 909 struct vnode *a_vp; 910 kauth_cred_t a_cred; 911 int a_flags; 912 off_t offlo; 913 off_t offhi; 914 struct proc *a_p; 915 } */ *ap = v; 916 struct vnode *vp = ap->a_vp; 917 int wait; 918 int error; 919 920 wait = (ap->a_flags & FSYNC_WAIT) != 0; 921 922 if (vp->v_type == VBLK) 923 error = spec_fsync(v); 924 else 925 error = vflushbuf(vp, ap->a_flags); 926 if (error == 0 && (ap->a_flags & FSYNC_DATAONLY) == 0) 927 error = ext2fs_update(vp, NULL, NULL, wait ? UPDATE_WAIT : 0); 928 929 if (error == 0 && ap->a_flags & FSYNC_CACHE) { 930 int l = 0; 931 error = VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &l, FWRITE, 932 curlwp->l_cred); 933 } 934 935 return error; 936} 937 938/* 939 * Initialize the vnode associated with a new inode, handle aliased 940 * vnodes. 941 */ 942int 943ext2fs_vinit(struct mount *mntp, int (**specops)(void *), 944 int (**fifoops)(void *), struct vnode **vpp) 945{ 946 struct timeval tv; 947 struct inode *ip; 948 struct vnode *vp; 949 950 vp = *vpp; 951 ip = VTOI(vp); 952 switch(vp->v_type = IFTOVT(ip->i_e2fs_mode)) { 953 case VCHR: 954 case VBLK: 955 vp->v_op = specops; 956 spec_node_init(vp, fs2h32(ip->i_din.e2fs_din->e2di_rdev)); 957 break; 958 case VFIFO: 959 vp->v_op = fifoops; 960 break; 961 case VNON: 962 case VBAD: 963 case VSOCK: 964 case VLNK: 965 case VDIR: 966 case VREG: 967 break; 968 } 969 if (ip->i_number == UFS_ROOTINO) 970 vp->v_vflag |= VV_ROOT; 971 /* 972 * Initialize modrev times 973 */ 974 getmicrouptime(&tv); 975 SETHIGH(ip->i_modrev, tv.tv_sec); 976 SETLOW(ip->i_modrev, tv.tv_usec * 4294U); 977 *vpp = vp; 978 return 0; 979} 980 981/* 982 * Allocate a new inode. 983 */ 984static int 985ext2fs_makeinode(struct vattr *vap, struct vnode *dvp, struct vnode **vpp, 986 struct componentname *cnp, int do_direnter) 987{ 988 struct inode *ip, *pdir; 989 struct vnode *tvp; 990 int error; 991 struct ufs_lookup_results *ulr; 992 993 pdir = VTOI(dvp); 994 995 /* XXX should handle this material another way */ 996 ulr = &pdir->i_crap; 997 UFS_CHECK_CRAPCOUNTER(pdir); 998 999 *vpp = NULL; 1000 1001 error = vcache_new(dvp->v_mount, dvp, vap, cnp->cn_cred, NULL, &tvp); 1002 if (error) 1003 return error; 1004 error = vn_lock(tvp, LK_EXCLUSIVE); 1005 if (error) { 1006 vrele(tvp); 1007 return error; 1008 } 1009 ip = VTOI(tvp); 1010 if (do_direnter) { 1011 /* 1012 * Make sure inode goes to disk before directory entry. 1013 */ 1014 if ((error = ext2fs_update(tvp, NULL, NULL, UPDATE_WAIT)) != 0) 1015 goto bad; 1016 error = ext2fs_direnter(ip, dvp, ulr, cnp); 1017 if (error != 0) 1018 goto bad; 1019 } 1020 1021 *vpp = tvp; 1022 cache_enter(dvp, *vpp, cnp->cn_nameptr, cnp->cn_namelen, cnp->cn_flags); 1023 return 0; 1024 1025bad: 1026 /* 1027 * Write error occurred trying to update the inode 1028 * or the directory so must deallocate the inode. 1029 */ 1030 ip->i_e2fs_nlink = 0; 1031 ip->i_flag |= IN_CHANGE; 1032 vput(tvp); 1033 return error; 1034} 1035 1036/* 1037 * Reclaim an inode so that it can be used for other purposes. 1038 */ 1039int 1040ext2fs_reclaim(void *v) 1041{ 1042 struct vop_reclaim_v2_args /* { 1043 struct vnode *a_vp; 1044 } */ *ap = v; 1045 struct vnode *vp = ap->a_vp; 1046 struct inode *ip = VTOI(vp); 1047 int error; 1048 1049 VOP_UNLOCK(vp); 1050 1051 /* 1052 * The inode must be freed and updated before being removed 1053 * from its hash chain. Other threads trying to gain a hold 1054 * or lock on the inode will be stalled. 1055 */ 1056 if (ip->i_omode == 1 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) 1057 ext2fs_vfree(vp, ip->i_number, ip->i_e2fs_mode); 1058 if ((error = ufs_reclaim(vp)) != 0) 1059 return error; 1060 if (ip->i_din.e2fs_din != NULL) 1061 kmem_free(ip->i_din.e2fs_din, EXT2_DINODE_SIZE(ip->i_e2fs)); 1062 genfs_node_destroy(vp); 1063 pool_put(&ext2fs_inode_pool, vp->v_data); 1064 vp->v_data = NULL; 1065 return 0; 1066} 1067 1068/* Global vfs data structures for ext2fs. */ 1069int (**ext2fs_vnodeop_p)(void *); 1070const struct vnodeopv_entry_desc ext2fs_vnodeop_entries[] = { 1071 { &vop_default_desc, vn_default_error }, 1072 { &vop_parsepath_desc, genfs_parsepath }, /* parsepath */ 1073 { &vop_lookup_desc, ext2fs_lookup }, /* lookup */ 1074 { &vop_create_desc, ext2fs_create }, /* create */ 1075 { &vop_mknod_desc, ext2fs_mknod }, /* mknod */ 1076 { &vop_open_desc, ext2fs_open }, /* open */ 1077 { &vop_close_desc, ufs_close }, /* close */ 1078 { &vop_access_desc, ext2fs_access }, /* access */ 1079 { &vop_accessx_desc, genfs_accessx }, /* accessx */ 1080 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1081 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1082 { &vop_read_desc, ext2fs_read }, /* read */ 1083 { &vop_write_desc, ext2fs_write }, /* write */ 1084 { &vop_fallocate_desc, genfs_eopnotsupp }, /* fallocate */ 1085 { &vop_fdiscard_desc, genfs_eopnotsupp }, /* fdiscard */ 1086 { &vop_ioctl_desc, genfs_enoioctl }, /* ioctl */ 1087 { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */ 1088 { &vop_poll_desc, genfs_poll }, /* poll */ 1089 { &vop_kqfilter_desc, genfs_kqfilter }, /* kqfilter */ 1090 { &vop_revoke_desc, genfs_revoke }, /* revoke */ 1091 { &vop_mmap_desc, genfs_mmap }, /* mmap */ 1092 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1093 { &vop_seek_desc, genfs_seek }, /* seek */ 1094 { &vop_remove_desc, ext2fs_remove }, /* remove */ 1095 { &vop_link_desc, ext2fs_link }, /* link */ 1096 { &vop_rename_desc, ext2fs_rename }, /* rename */ 1097 { &vop_mkdir_desc, ext2fs_mkdir }, /* mkdir */ 1098 { &vop_rmdir_desc, ext2fs_rmdir }, /* rmdir */ 1099 { &vop_symlink_desc, ext2fs_symlink }, /* symlink */ 1100 { &vop_readdir_desc, ext2fs_readdir }, /* readdir */ 1101 { &vop_readlink_desc, ext2fs_readlink }, /* readlink */ 1102 { &vop_abortop_desc, genfs_abortop }, /* abortop */ 1103 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1104 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1105 { &vop_lock_desc, genfs_lock }, /* lock */ 1106 { &vop_unlock_desc, genfs_unlock }, /* unlock */ 1107 { &vop_bmap_desc, ext2fs_bmap }, /* bmap */ 1108 { &vop_strategy_desc, ufs_strategy }, /* strategy */ 1109 { &vop_print_desc, ufs_print }, /* print */ 1110 { &vop_islocked_desc, genfs_islocked }, /* islocked */ 1111 { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ 1112 { &vop_advlock_desc, ext2fs_advlock }, /* advlock */ 1113 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1114 { &vop_getpages_desc, genfs_getpages }, /* getpages */ 1115 { &vop_putpages_desc, genfs_putpages }, /* putpages */ 1116 { &vop_getextattr_desc, ext2fs_getextattr }, /* getextattr */ 1117 { &vop_setextattr_desc, ext2fs_setextattr }, /* setextattr */ 1118 { &vop_listextattr_desc, ext2fs_listextattr }, /* listextattr */ 1119 { &vop_deleteextattr_desc, ext2fs_deleteextattr },/* deleteextattr */ 1120 { NULL, NULL } 1121}; 1122const struct vnodeopv_desc ext2fs_vnodeop_opv_desc = 1123 { &ext2fs_vnodeop_p, ext2fs_vnodeop_entries }; 1124 1125int (**ext2fs_specop_p)(void *); 1126const struct vnodeopv_entry_desc ext2fs_specop_entries[] = { 1127 { &vop_default_desc, vn_default_error }, 1128 GENFS_SPECOP_ENTRIES, 1129 { &vop_close_desc, ufsspec_close }, /* close */ 1130 { &vop_access_desc, ext2fs_access }, /* access */ 1131 { &vop_accessx_desc, genfs_accessx }, /* accessx */ 1132 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1133 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1134 { &vop_read_desc, ufsspec_read }, /* read */ 1135 { &vop_write_desc, ufsspec_write }, /* write */ 1136 { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */ 1137 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1138 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1139 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1140 { &vop_lock_desc, genfs_lock }, /* lock */ 1141 { &vop_unlock_desc, genfs_unlock }, /* unlock */ 1142 { &vop_print_desc, ufs_print }, /* print */ 1143 { &vop_islocked_desc, genfs_islocked }, /* islocked */ 1144 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1145 { &vop_getextattr_desc, ext2fs_getextattr }, /* getextattr */ 1146 { &vop_setextattr_desc, ext2fs_setextattr }, /* setextattr */ 1147 { &vop_listextattr_desc, ext2fs_listextattr }, /* listextattr */ 1148 { &vop_deleteextattr_desc, ext2fs_deleteextattr },/* deleteextattr */ 1149 { NULL, NULL } 1150}; 1151const struct vnodeopv_desc ext2fs_specop_opv_desc = 1152 { &ext2fs_specop_p, ext2fs_specop_entries }; 1153 1154int (**ext2fs_fifoop_p)(void *); 1155const struct vnodeopv_entry_desc ext2fs_fifoop_entries[] = { 1156 { &vop_default_desc, vn_default_error }, 1157 GENFS_FIFOOP_ENTRIES, 1158 { &vop_close_desc, ufsfifo_close }, /* close */ 1159 { &vop_access_desc, ext2fs_access }, /* access */ 1160 { &vop_accessx_desc, genfs_accessx }, /* accessx */ 1161 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1162 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1163 { &vop_read_desc, ufsfifo_read }, /* read */ 1164 { &vop_write_desc, ufsfifo_write }, /* write */ 1165 { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */ 1166 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1167 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1168 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1169 { &vop_lock_desc, genfs_lock }, /* lock */ 1170 { &vop_unlock_desc, genfs_unlock }, /* unlock */ 1171 { &vop_strategy_desc, vn_fifo_bypass }, /* strategy */ 1172 { &vop_print_desc, ufs_print }, /* print */ 1173 { &vop_islocked_desc, genfs_islocked }, /* islocked */ 1174 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1175 { &vop_getextattr_desc, ext2fs_getextattr }, /* getextattr */ 1176 { &vop_setextattr_desc, ext2fs_setextattr }, /* setextattr */ 1177 { &vop_listextattr_desc, ext2fs_listextattr }, /* listextattr */ 1178 { &vop_deleteextattr_desc, ext2fs_deleteextattr },/* deleteextattr */ 1179 { NULL, NULL } 1180}; 1181const struct vnodeopv_desc ext2fs_fifoop_opv_desc = 1182 { &ext2fs_fifoop_p, ext2fs_fifoop_entries }; 1183