ext2fs_vnops.c revision 1.119
1 /* $NetBSD: ext2fs_vnops.c,v 1.119 2016/08/03 23:29:05 jdolecek 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 1.119 2016/08/03 23:29:05 jdolecek 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 98 extern int prtactive; 99 100 static int ext2fs_chmod(struct vnode *, int, kauth_cred_t, struct lwp *); 101 static int ext2fs_chown(struct vnode *, uid_t, gid_t, kauth_cred_t, 102 struct lwp *); 103 104 union _qcvt { 105 int64_t qcvt; 106 int32_t val[2]; 107 }; 108 109 #define SETHIGH(q, h) { \ 110 union _qcvt tmp; \ 111 tmp.qcvt = (q); \ 112 tmp.val[_QUAD_HIGHWORD] = (h); \ 113 (q) = tmp.qcvt; \ 114 } 115 #define SETLOW(q, l) { \ 116 union _qcvt tmp; \ 117 tmp.qcvt = (q); \ 118 tmp.val[_QUAD_LOWWORD] = (l); \ 119 (q) = tmp.qcvt; \ 120 } 121 122 /* 123 * Create a regular file 124 */ 125 int 126 ext2fs_create(void *v) 127 { 128 struct vop_create_v3_args /* { 129 struct vnode *a_dvp; 130 struct vnode **a_vpp; 131 struct componentname *a_cnp; 132 struct vattr *a_vap; 133 } */ *ap = v; 134 int error; 135 136 error = 137 ext2fs_makeinode(MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode), 138 ap->a_dvp, ap->a_vpp, ap->a_cnp); 139 140 if (error) 141 return (error); 142 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 143 VOP_UNLOCK(*ap->a_vpp); 144 return (0); 145 } 146 147 /* 148 * Mknod vnode call 149 */ 150 /* ARGSUSED */ 151 int 152 ext2fs_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 struct mount *mp; 165 ino_t ino; 166 167 if ((error = ext2fs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode), 168 ap->a_dvp, vpp, ap->a_cnp)) != 0) 169 return (error); 170 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 171 ip = VTOI(*vpp); 172 mp = (*vpp)->v_mount; 173 ino = ip->i_number; 174 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 175 if (vap->va_rdev != VNOVAL) { 176 /* 177 * Want to be able to use this to make badblock 178 * inodes, so don't truncate the dev number. 179 */ 180 ip->i_din.e2fs_din->e2di_rdev = h2fs32(vap->va_rdev); 181 } 182 /* 183 * Remove inode so that it will be reloaded by vcache_get and 184 * checked to see if it is an alias of an existing entry in 185 * the inode cache. 186 */ 187 (*vpp)->v_type = VNON; 188 VOP_UNLOCK(*vpp); 189 vgone(*vpp); 190 error = vcache_get(mp, &ino, sizeof(ino), vpp); 191 if (error != 0) { 192 *vpp = NULL; 193 return (error); 194 } 195 return (0); 196 } 197 198 /* 199 * Open called. 200 * 201 * Just check the APPEND flag. 202 */ 203 /* ARGSUSED */ 204 int 205 ext2fs_open(void *v) 206 { 207 struct vop_open_args /* { 208 struct vnode *a_vp; 209 int a_mode; 210 kauth_cred_t a_cred; 211 } */ *ap = v; 212 213 /* 214 * Files marked append-only must be opened for appending. 215 */ 216 if ((VTOI(ap->a_vp)->i_e2fs_flags & EXT2_APPEND) && 217 (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE) 218 return (EPERM); 219 return (0); 220 } 221 222 static int 223 ext2fs_check_possible(struct vnode *vp, struct inode *ip, mode_t mode) 224 { 225 226 /* 227 * Disallow write attempts on read-only file systems; 228 * unless the file is a socket, fifo, or a block or 229 * character device resident on the file system. 230 */ 231 if (mode & VWRITE) { 232 switch (vp->v_type) { 233 case VDIR: 234 case VLNK: 235 case VREG: 236 if (vp->v_mount->mnt_flag & MNT_RDONLY) 237 return (EROFS); 238 break; 239 default: 240 break; 241 } 242 } 243 244 /* If immutable bit set, nobody gets to write it. */ 245 if ((mode & VWRITE) && (ip->i_e2fs_flags & EXT2_IMMUTABLE)) 246 return (EPERM); 247 248 return 0; 249 } 250 251 static int 252 ext2fs_check_permitted(struct vnode *vp, struct inode *ip, mode_t mode, 253 kauth_cred_t cred) 254 { 255 256 return kauth_authorize_vnode(cred, KAUTH_ACCESS_ACTION(mode, vp->v_type, 257 ip->i_e2fs_mode & ALLPERMS), vp, NULL, genfs_can_access(vp->v_type, 258 ip->i_e2fs_mode & ALLPERMS, ip->i_uid, ip->i_gid, mode, cred)); 259 } 260 261 int 262 ext2fs_access(void *v) 263 { 264 struct vop_access_args /* { 265 struct vnode *a_vp; 266 int a_mode; 267 kauth_cred_t a_cred; 268 } */ *ap = v; 269 struct vnode *vp = ap->a_vp; 270 struct inode *ip = VTOI(vp); 271 mode_t mode = ap->a_mode; 272 int error; 273 274 error = ext2fs_check_possible(vp, ip, mode); 275 if (error) 276 return error; 277 278 error = ext2fs_check_permitted(vp, ip, mode, ap->a_cred); 279 280 return error; 281 } 282 283 /* ARGSUSED */ 284 int 285 ext2fs_getattr(void *v) 286 { 287 struct vop_getattr_args /* { 288 struct vnode *a_vp; 289 struct vattr *a_vap; 290 kauth_cred_t a_cred; 291 } */ *ap = v; 292 struct vnode *vp = ap->a_vp; 293 struct inode *ip = VTOI(vp); 294 struct vattr *vap = ap->a_vap; 295 296 EXT2FS_ITIMES(ip, NULL, NULL, NULL); 297 /* 298 * Copy from inode table 299 */ 300 vap->va_fsid = ip->i_dev; 301 vap->va_fileid = ip->i_number; 302 vap->va_mode = ip->i_e2fs_mode & ALLPERMS; 303 vap->va_nlink = ip->i_e2fs_nlink; 304 vap->va_uid = ip->i_uid; 305 vap->va_gid = ip->i_gid; 306 vap->va_rdev = (dev_t)fs2h32(ip->i_din.e2fs_din->e2di_rdev); 307 vap->va_size = vp->v_size; 308 EXT2_DINODE_TIME_GET(&vap->va_atime, ip->i_din.e2fs_din, e2di_atime, EXT2_DINODE_SIZE(ip->i_e2fs)); 309 EXT2_DINODE_TIME_GET(&vap->va_mtime, ip->i_din.e2fs_din, e2di_mtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 310 EXT2_DINODE_TIME_GET(&vap->va_ctime, ip->i_din.e2fs_din, e2di_ctime, EXT2_DINODE_SIZE(ip->i_e2fs)); 311 if (EXT2_DINODE_FITS(ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs))) { 312 EXT2_DINODE_TIME_GET(&vap->va_birthtime, ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 313 } 314 #ifdef EXT2FS_SYSTEM_FLAGS 315 vap->va_flags = (ip->i_e2fs_flags & EXT2_APPEND) ? SF_APPEND : 0; 316 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? SF_IMMUTABLE : 0; 317 #else 318 vap->va_flags = (ip->i_e2fs_flags & EXT2_APPEND) ? UF_APPEND : 0; 319 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? UF_IMMUTABLE : 0; 320 #endif 321 vap->va_gen = ip->i_e2fs_gen; 322 /* this doesn't belong here */ 323 if (vp->v_type == VBLK) 324 vap->va_blocksize = BLKDEV_IOSIZE; 325 else if (vp->v_type == VCHR) 326 vap->va_blocksize = MAXBSIZE; 327 else 328 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; 329 vap->va_bytes = dbtob(ext2fs_nblock(ip)); 330 vap->va_type = vp->v_type; 331 vap->va_filerev = ip->i_modrev; 332 return (0); 333 } 334 335 /* 336 * Set attribute vnode op. called from several syscalls 337 */ 338 int 339 ext2fs_setattr(void *v) 340 { 341 struct vop_setattr_args /* { 342 struct vnode *a_vp; 343 struct vattr *a_vap; 344 kauth_cred_t a_cred; 345 } */ *ap = v; 346 struct vattr *vap = ap->a_vap; 347 struct vnode *vp = ap->a_vp; 348 struct inode *ip = VTOI(vp); 349 kauth_cred_t cred = ap->a_cred; 350 struct lwp *l = curlwp; 351 int error; 352 kauth_action_t action = KAUTH_VNODE_WRITE_FLAGS; 353 bool changing_sysflags = false; 354 355 /* 356 * Check for unsettable attributes. 357 */ 358 if ((vap->va_type != VNON) || (vap->va_nlink != (nlink_t)VNOVAL) || 359 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) || 360 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) || 361 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) { 362 return (EINVAL); 363 } 364 if (vap->va_flags != VNOVAL) { 365 if (vp->v_mount->mnt_flag & MNT_RDONLY) 366 return (EROFS); 367 368 /* 369 * Check if we're allowed to change the flags. 370 * If EXT2FS_SYSTEM_FLAGS is set, then the flags are treated 371 * as system flags, otherwise they're considered to be user 372 * flags. 373 */ 374 #ifdef EXT2FS_SYSTEM_FLAGS 375 /* Indicate we're changing system flags if we are. */ 376 if ((vap->va_flags & SF_APPEND) || 377 (vap->va_flags & SF_IMMUTABLE)) { 378 action |= KAUTH_VNODE_WRITE_SYSFLAGS; 379 changing_sysflags = true; 380 } 381 382 /* Indicate the node has system flags if it does. */ 383 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) { 384 action |= KAUTH_VNODE_HAS_SYSFLAGS; 385 } 386 #endif /* EXT2FS_SYSTEM_FLAGS */ 387 388 error = kauth_authorize_vnode(cred, action, vp, NULL, 389 genfs_can_chflags(cred, vp->v_type, ip->i_uid, 390 changing_sysflags)); 391 if (error) 392 return (error); 393 394 #ifdef EXT2FS_SYSTEM_FLAGS 395 ip->i_e2fs_flags &= ~(EXT2_APPEND | EXT2_IMMUTABLE); 396 ip->i_e2fs_flags |= 397 (vap->va_flags & SF_APPEND) ? EXT2_APPEND : 0 | 398 (vap->va_flags & SF_IMMUTABLE) ? EXT2_IMMUTABLE : 0; 399 #else 400 ip->i_e2fs_flags &= ~(EXT2_APPEND | EXT2_IMMUTABLE); 401 ip->i_e2fs_flags |= 402 (vap->va_flags & UF_APPEND) ? EXT2_APPEND : 0 | 403 (vap->va_flags & UF_IMMUTABLE) ? EXT2_IMMUTABLE : 0; 404 #endif 405 ip->i_flag |= IN_CHANGE; 406 if (vap->va_flags & (IMMUTABLE | APPEND)) 407 return (0); 408 } 409 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) 410 return (EPERM); 411 /* 412 * Go through the fields and update iff not VNOVAL. 413 */ 414 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) { 415 if (vp->v_mount->mnt_flag & MNT_RDONLY) 416 return (EROFS); 417 error = ext2fs_chown(vp, vap->va_uid, vap->va_gid, cred, l); 418 if (error) 419 return (error); 420 } 421 if (vap->va_size != VNOVAL) { 422 /* 423 * Disallow write attempts on read-only file systems; 424 * unless the file is a socket, fifo, or a block or 425 * character device resident on the file system. 426 */ 427 switch (vp->v_type) { 428 case VDIR: 429 return (EISDIR); 430 case VLNK: 431 case VREG: 432 if (vp->v_mount->mnt_flag & MNT_RDONLY) 433 return (EROFS); 434 default: 435 break; 436 } 437 error = ext2fs_truncate(vp, vap->va_size, 0, cred); 438 if (error) 439 return (error); 440 } 441 ip = VTOI(vp); 442 if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL || vap->va_birthtime.tv_sec != VNOVAL) { 443 if (vp->v_mount->mnt_flag & MNT_RDONLY) 444 return (EROFS); 445 error = kauth_authorize_vnode(cred, KAUTH_VNODE_WRITE_TIMES, vp, 446 NULL, genfs_can_chtimes(vp, vap->va_vaflags, ip->i_uid, 447 cred)); 448 if (error) 449 return (error); 450 if (vap->va_atime.tv_sec != VNOVAL) 451 if (!(vp->v_mount->mnt_flag & MNT_NOATIME)) 452 ip->i_flag |= IN_ACCESS; 453 if (vap->va_mtime.tv_sec != VNOVAL) { 454 ip->i_flag |= IN_CHANGE | IN_UPDATE; 455 if (vp->v_mount->mnt_flag & MNT_RELATIME) 456 ip->i_flag |= IN_ACCESS; 457 } 458 if (vap->va_birthtime.tv_sec != VNOVAL && 459 EXT2_DINODE_FITS(ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs))) { 460 461 EXT2_DINODE_TIME_SET(&vap->va_birthtime, ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 462 } 463 error = ext2fs_update(vp, &vap->va_atime, &vap->va_mtime, 464 UPDATE_WAIT); 465 if (error) 466 return (error); 467 } 468 error = 0; 469 if (vap->va_mode != (mode_t)VNOVAL) { 470 if (vp->v_mount->mnt_flag & MNT_RDONLY) 471 return (EROFS); 472 error = ext2fs_chmod(vp, (int)vap->va_mode, cred, l); 473 } 474 VN_KNOTE(vp, NOTE_ATTRIB); 475 return (error); 476 } 477 478 /* 479 * Change the mode on a file. 480 * Inode must be locked before calling. 481 */ 482 static int 483 ext2fs_chmod(struct vnode *vp, int mode, kauth_cred_t cred, struct lwp *l) 484 { 485 struct inode *ip = VTOI(vp); 486 int error; 487 488 error = kauth_authorize_vnode(cred, KAUTH_VNODE_WRITE_SECURITY, vp, 489 NULL, genfs_can_chmod(vp->v_type, cred, ip->i_uid, ip->i_gid, 490 mode)); 491 if (error) 492 return (error); 493 494 ip->i_e2fs_mode &= ~ALLPERMS; 495 ip->i_e2fs_mode |= (mode & ALLPERMS); 496 ip->i_flag |= IN_CHANGE; 497 return (0); 498 } 499 500 /* 501 * Perform chown operation on inode ip; 502 * inode must be locked prior to call. 503 */ 504 static int 505 ext2fs_chown(struct vnode *vp, uid_t uid, gid_t gid, kauth_cred_t cred, 506 struct lwp *l) 507 { 508 struct inode *ip = VTOI(vp); 509 uid_t ouid; 510 gid_t ogid; 511 int error; 512 513 if (uid == (uid_t)VNOVAL) 514 uid = ip->i_uid; 515 if (gid == (gid_t)VNOVAL) 516 gid = ip->i_gid; 517 518 error = kauth_authorize_vnode(cred, KAUTH_VNODE_CHANGE_OWNERSHIP, vp, 519 NULL, genfs_can_chown(cred, ip->i_uid, ip->i_gid, uid, gid)); 520 if (error) 521 return (error); 522 523 ogid = ip->i_gid; 524 ouid = ip->i_uid; 525 526 ip->i_e2fs_gid = gid & 0xffff; 527 ip->i_e2fs_uid = uid & 0xffff; 528 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 529 ip->i_e2fs_gid_high = (gid >> 16) & 0xffff; 530 ip->i_e2fs_uid_high = (uid >> 16) & 0xffff; 531 } else { 532 ip->i_e2fs_gid_high = 0; 533 ip->i_e2fs_uid_high = 0; 534 } 535 if (ouid != uid || ogid != gid) { 536 ext2fs_set_inode_guid(ip); 537 ip->i_flag |= IN_CHANGE; 538 } 539 if (ouid != uid && (ip->i_e2fs_mode & ISUID) && 540 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SUID, 541 vp, NULL, EPERM) != 0) 542 ip->i_e2fs_mode &= ~ISUID; 543 if (ogid != gid && (ip->i_e2fs_mode & ISGID) && 544 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SGID, 545 vp, NULL, EPERM) != 0) 546 ip->i_e2fs_mode &= ~ISGID; 547 return (0); 548 } 549 550 int 551 ext2fs_remove(void *v) 552 { 553 struct vop_remove_args /* { 554 struct vnode *a_dvp; 555 struct vnode *a_vp; 556 struct componentname *a_cnp; 557 } */ *ap = v; 558 struct inode *ip; 559 struct vnode *vp = ap->a_vp; 560 struct vnode *dvp = ap->a_dvp; 561 struct ufs_lookup_results *ulr; 562 int error; 563 564 /* XXX should handle this material another way */ 565 ulr = &VTOI(dvp)->i_crap; 566 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 567 568 ip = VTOI(vp); 569 if (vp->v_type == VDIR || 570 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) || 571 (VTOI(dvp)->i_e2fs_flags & EXT2_APPEND)) { 572 error = EPERM; 573 } else { 574 error = ext2fs_dirremove(dvp, ulr, ap->a_cnp); 575 if (error == 0) { 576 ip->i_e2fs_nlink--; 577 ip->i_flag |= IN_CHANGE; 578 } 579 } 580 581 VN_KNOTE(vp, NOTE_DELETE); 582 VN_KNOTE(dvp, NOTE_WRITE); 583 if (dvp == vp) 584 vrele(vp); 585 else 586 vput(vp); 587 vput(dvp); 588 return (error); 589 } 590 591 /* 592 * ext2fs_link: create hard link. 593 */ 594 int 595 ext2fs_link(void *v) 596 { 597 struct vop_link_v2_args /* { 598 struct vnode *a_dvp; 599 struct vnode *a_vp; 600 struct componentname *a_cnp; 601 } */ *ap = v; 602 struct vnode *dvp = ap->a_dvp; 603 struct vnode *vp = ap->a_vp; 604 struct componentname *cnp = ap->a_cnp; 605 struct inode *ip; 606 int error; 607 struct ufs_lookup_results *ulr; 608 609 KASSERT(dvp != vp); 610 KASSERT(vp->v_type != VDIR); 611 KASSERT(dvp->v_mount == vp->v_mount); 612 613 /* XXX should handle this material another way */ 614 ulr = &VTOI(dvp)->i_crap; 615 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 616 617 error = vn_lock(vp, LK_EXCLUSIVE); 618 if (error) { 619 VOP_ABORTOP(dvp, cnp); 620 goto out2; 621 } 622 ip = VTOI(vp); 623 if ((nlink_t)ip->i_e2fs_nlink >= LINK_MAX) { 624 VOP_ABORTOP(dvp, cnp); 625 error = EMLINK; 626 goto out1; 627 } 628 if (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) { 629 VOP_ABORTOP(dvp, cnp); 630 error = EPERM; 631 goto out1; 632 } 633 ip->i_e2fs_nlink++; 634 ip->i_flag |= IN_CHANGE; 635 error = ext2fs_update(vp, NULL, NULL, UPDATE_WAIT); 636 if (!error) 637 error = ext2fs_direnter(ip, dvp, ulr, cnp); 638 if (error) { 639 ip->i_e2fs_nlink--; 640 ip->i_flag |= IN_CHANGE; 641 } 642 out1: 643 VOP_UNLOCK(vp); 644 out2: 645 VN_KNOTE(vp, NOTE_LINK); 646 VN_KNOTE(dvp, NOTE_WRITE); 647 return (error); 648 } 649 650 /* 651 * Mkdir system call 652 */ 653 int 654 ext2fs_mkdir(void *v) 655 { 656 struct vop_mkdir_v3_args /* { 657 struct vnode *a_dvp; 658 struct vnode **a_vpp; 659 struct componentname *a_cnp; 660 struct vattr *a_vap; 661 } */ *ap = v; 662 struct vnode *dvp = ap->a_dvp; 663 struct vattr *vap = ap->a_vap; 664 struct componentname *cnp = ap->a_cnp; 665 struct inode *ip, *dp = VTOI(dvp); 666 struct vnode *tvp; 667 struct ext2fs_dirtemplate dirtemplate; 668 int error, dmode; 669 struct ufs_lookup_results *ulr; 670 671 /* XXX should handle this material another way */ 672 ulr = &VTOI(dvp)->i_crap; 673 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 674 675 if ((nlink_t)dp->i_e2fs_nlink >= LINK_MAX) { 676 error = EMLINK; 677 goto out; 678 } 679 dmode = vap->va_mode & ACCESSPERMS; 680 dmode |= IFDIR; 681 /* 682 * Must simulate part of ext2fs_makeinode here to acquire the inode, 683 * but not have it entered in the parent directory. The entry is 684 * made later after writing "." and ".." entries. 685 */ 686 if ((error = ext2fs_valloc(dvp, dmode, cnp->cn_cred, &tvp)) != 0) 687 goto out; 688 ip = VTOI(tvp); 689 ip->i_uid = kauth_cred_geteuid(cnp->cn_cred); 690 ip->i_e2fs_uid = ip->i_uid & 0xffff; 691 ip->i_e2fs_gid = dp->i_e2fs_gid; 692 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 693 ip->i_e2fs_uid_high = (ip->i_uid >> 16) & 0xffff; 694 ip->i_e2fs_gid_high = dp->i_e2fs_gid_high; 695 } else { 696 ip->i_e2fs_uid_high = 0; 697 ip->i_e2fs_gid_high = 0; 698 } 699 ip->i_gid = ip->i_e2fs_gid | (ip->i_e2fs_gid_high << 16); 700 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 701 ip->i_e2fs_mode = dmode; 702 tvp->v_type = VDIR; /* Rest init'd in getnewvnode(). */ 703 ip->i_e2fs_nlink = 2; 704 705 /* 706 * Bump link count in parent directory 707 * to reflect work done below. Should 708 * be done before reference is created 709 * so reparation is possible if we crash. 710 */ 711 dp->i_e2fs_nlink++; 712 dp->i_flag |= IN_CHANGE; 713 if ((error = ext2fs_update(dvp, NULL, NULL, UPDATE_DIROP)) != 0) 714 goto bad; 715 716 /* Initialize directory with "." and ".." from static template. */ 717 memset(&dirtemplate, 0, sizeof(dirtemplate)); 718 dirtemplate.dot_ino = h2fs32(ip->i_number); 719 dirtemplate.dot_reclen = h2fs16(12); 720 dirtemplate.dot_namlen = 1; 721 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0 && 722 (ip->i_e2fs->e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE)) { 723 dirtemplate.dot_type = EXT2_FT_DIR; 724 } 725 dirtemplate.dot_name[0] = '.'; 726 dirtemplate.dotdot_ino = h2fs32(dp->i_number); 727 dirtemplate.dotdot_reclen = h2fs16(VTOI(dvp)->i_e2fs->e2fs_bsize - 12); 728 dirtemplate.dotdot_namlen = 2; 729 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0 && 730 (ip->i_e2fs->e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE)) { 731 dirtemplate.dotdot_type = EXT2_FT_DIR; 732 } 733 dirtemplate.dotdot_name[0] = dirtemplate.dotdot_name[1] = '.'; 734 error = ufs_bufio(UIO_WRITE, tvp, (void *)&dirtemplate, 735 sizeof (dirtemplate), (off_t)0, IO_NODELOCKED|IO_SYNC, 736 cnp->cn_cred, (size_t *)0, NULL); 737 if (error) { 738 dp->i_e2fs_nlink--; 739 dp->i_flag |= IN_CHANGE; 740 goto bad; 741 } 742 if (VTOI(dvp)->i_e2fs->e2fs_bsize > dvp->v_mount->mnt_stat.f_bsize) 743 panic("ext2fs_mkdir: blksize"); /* XXX should grow with balloc() */ 744 else { 745 error = ext2fs_setsize(ip, VTOI(dvp)->i_e2fs->e2fs_bsize); 746 if (error) { 747 dp->i_e2fs_nlink--; 748 dp->i_flag |= IN_CHANGE; 749 goto bad; 750 } 751 ip->i_flag |= IN_CHANGE; 752 uvm_vnp_setsize(tvp, ext2fs_size(ip)); 753 } 754 755 /* Directory set up, now install its entry in the parent directory. */ 756 error = ext2fs_direnter(ip, dvp, ulr, cnp); 757 if (error != 0) { 758 dp->i_e2fs_nlink--; 759 dp->i_flag |= IN_CHANGE; 760 } 761 bad: 762 /* 763 * No need to do an explicit ext2fs_truncate here, vrele will do this 764 * for us because we set the link count to 0. 765 */ 766 if (error) { 767 ip->i_e2fs_nlink = 0; 768 ip->i_flag |= IN_CHANGE; 769 vput(tvp); 770 } else { 771 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK); 772 VOP_UNLOCK(tvp); 773 *ap->a_vpp = tvp; 774 } 775 out: 776 return (error); 777 } 778 779 /* 780 * Rmdir system call. 781 */ 782 int 783 ext2fs_rmdir(void *v) 784 { 785 struct vop_rmdir_args /* { 786 struct vnode *a_dvp; 787 struct vnode *a_vp; 788 struct componentname *a_cnp; 789 } */ *ap = v; 790 struct vnode *vp = ap->a_vp; 791 struct vnode *dvp = ap->a_dvp; 792 struct componentname *cnp = ap->a_cnp; 793 struct inode *ip, *dp; 794 int error; 795 struct ufs_lookup_results *ulr; 796 797 ip = VTOI(vp); 798 dp = VTOI(dvp); 799 800 /* XXX should handle this material another way */ 801 ulr = &dp->i_crap; 802 UFS_CHECK_CRAPCOUNTER(dp); 803 804 /* 805 * No rmdir "." please. 806 */ 807 if (dp == ip) { 808 vrele(dvp); 809 vput(vp); 810 return (EINVAL); 811 } 812 /* 813 * Verify the directory is empty (and valid). 814 * (Rmdir ".." won't be valid since 815 * ".." will contain a reference to 816 * the current directory and thus be 817 * non-empty.) 818 */ 819 error = 0; 820 if (ip->i_e2fs_nlink != 2 || 821 !ext2fs_dirempty(ip, dp->i_number, cnp->cn_cred)) { 822 error = ENOTEMPTY; 823 goto out; 824 } 825 if ((dp->i_e2fs_flags & EXT2_APPEND) || 826 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND))) { 827 error = EPERM; 828 goto out; 829 } 830 /* 831 * Delete reference to directory before purging 832 * inode. If we crash in between, the directory 833 * will be reattached to lost+found, 834 */ 835 error = ext2fs_dirremove(dvp, ulr, cnp); 836 if (error != 0) 837 goto out; 838 dp->i_e2fs_nlink--; 839 dp->i_flag |= IN_CHANGE; 840 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK); 841 cache_purge(dvp); 842 vput(dvp); 843 dvp = NULL; 844 /* 845 * Truncate inode. The only stuff left 846 * in the directory is "." and "..". The 847 * "." reference is inconsequential since 848 * we're quashing it. The ".." reference 849 * has already been adjusted above. We've 850 * removed the "." reference and the reference 851 * in the parent directory, but there may be 852 * other hard links so decrement by 2 and 853 * worry about them later. 854 */ 855 ip->i_e2fs_nlink -= 2; 856 error = ext2fs_truncate(vp, (off_t)0, IO_SYNC, cnp->cn_cred); 857 cache_purge(ITOV(ip)); 858 out: 859 VN_KNOTE(vp, NOTE_DELETE); 860 if (dvp) 861 vput(dvp); 862 vput(vp); 863 return (error); 864 } 865 866 /* 867 * symlink -- make a symbolic link 868 */ 869 int 870 ext2fs_symlink(void *v) 871 { 872 struct vop_symlink_v3_args /* { 873 struct vnode *a_dvp; 874 struct vnode **a_vpp; 875 struct componentname *a_cnp; 876 struct vattr *a_vap; 877 char *a_target; 878 } */ *ap = v; 879 struct vnode *vp, **vpp; 880 struct inode *ip; 881 int len, error; 882 883 vpp = ap->a_vpp; 884 error = ext2fs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp, 885 vpp, ap->a_cnp); 886 if (error) 887 return (error); 888 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 889 vp = *vpp; 890 len = strlen(ap->a_target); 891 ip = VTOI(vp); 892 if (len < ip->i_ump->um_maxsymlinklen) { 893 memcpy((char *)ip->i_din.e2fs_din->e2di_shortlink, ap->a_target, len); 894 error = ext2fs_setsize(ip, len); 895 if (error) 896 goto bad; 897 ip->i_flag |= IN_CHANGE | IN_UPDATE; 898 if (vp->v_mount->mnt_flag & MNT_RELATIME) 899 ip->i_flag |= IN_ACCESS; 900 uvm_vnp_setsize(vp, len); 901 } else 902 error = ufs_bufio(UIO_WRITE, vp, ap->a_target, len, (off_t)0, 903 IO_NODELOCKED, ap->a_cnp->cn_cred, (size_t *)0, NULL); 904 bad: 905 VOP_UNLOCK(vp); 906 if (error) 907 vrele(vp); 908 return (error); 909 } 910 911 /* 912 * Return target name of a symbolic link 913 */ 914 int 915 ext2fs_readlink(void *v) 916 { 917 struct vop_readlink_args /* { 918 struct vnode *a_vp; 919 struct uio *a_uio; 920 kauth_cred_t a_cred; 921 } */ *ap = v; 922 struct vnode *vp = ap->a_vp; 923 struct inode *ip = VTOI(vp); 924 struct ufsmount *ump = ip->i_ump; 925 int isize; 926 927 isize = ext2fs_size(ip); 928 if (isize < ump->um_maxsymlinklen || 929 (ump->um_maxsymlinklen == 0 && ext2fs_nblock(ip) == 0)) { 930 uiomove((char *)ip->i_din.e2fs_din->e2di_shortlink, isize, ap->a_uio); 931 return (0); 932 } 933 return (UFS_BUFRD(vp, ap->a_uio, 0, ap->a_cred)); 934 } 935 936 /* 937 * Advisory record locking support 938 */ 939 int 940 ext2fs_advlock(void *v) 941 { 942 struct vop_advlock_args /* { 943 struct vnode *a_vp; 944 void * a_id; 945 int a_op; 946 struct flock *a_fl; 947 int a_flags; 948 } */ *ap = v; 949 struct inode *ip = VTOI(ap->a_vp); 950 951 return lf_advlock(ap, &ip->i_lockf, ext2fs_size(ip)); 952 } 953 954 int 955 ext2fs_fsync(void *v) 956 { 957 struct vop_fsync_args /* { 958 struct vnode *a_vp; 959 kauth_cred_t a_cred; 960 int a_flags; 961 off_t offlo; 962 off_t offhi; 963 struct proc *a_p; 964 } */ *ap = v; 965 struct vnode *vp = ap->a_vp; 966 int wait; 967 int error; 968 969 wait = (ap->a_flags & FSYNC_WAIT) != 0; 970 971 if (vp->v_type == VBLK) 972 error = spec_fsync(v); 973 else 974 error = vflushbuf(vp, ap->a_flags); 975 if (error == 0 && (ap->a_flags & FSYNC_DATAONLY) == 0) 976 error = ext2fs_update(vp, NULL, NULL, wait ? UPDATE_WAIT : 0); 977 978 if (error == 0 && ap->a_flags & FSYNC_CACHE) { 979 int l = 0; 980 error = VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &l, FWRITE, 981 curlwp->l_cred); 982 } 983 984 return error; 985 } 986 987 /* 988 * Initialize the vnode associated with a new inode, handle aliased 989 * vnodes. 990 */ 991 int 992 ext2fs_vinit(struct mount *mntp, int (**specops)(void *), 993 int (**fifoops)(void *), struct vnode **vpp) 994 { 995 struct timeval tv; 996 struct inode *ip; 997 struct vnode *vp; 998 999 vp = *vpp; 1000 ip = VTOI(vp); 1001 switch(vp->v_type = IFTOVT(ip->i_e2fs_mode)) { 1002 case VCHR: 1003 case VBLK: 1004 vp->v_op = specops; 1005 spec_node_init(vp, fs2h32(ip->i_din.e2fs_din->e2di_rdev)); 1006 break; 1007 case VFIFO: 1008 vp->v_op = fifoops; 1009 break; 1010 case VNON: 1011 case VBAD: 1012 case VSOCK: 1013 case VLNK: 1014 case VDIR: 1015 case VREG: 1016 break; 1017 } 1018 if (ip->i_number == UFS_ROOTINO) 1019 vp->v_vflag |= VV_ROOT; 1020 /* 1021 * Initialize modrev times 1022 */ 1023 getmicrouptime(&tv); 1024 SETHIGH(ip->i_modrev, tv.tv_sec); 1025 SETLOW(ip->i_modrev, tv.tv_usec * 4294); 1026 *vpp = vp; 1027 return (0); 1028 } 1029 1030 /* 1031 * Allocate a new inode. 1032 */ 1033 int 1034 ext2fs_makeinode(int mode, struct vnode *dvp, struct vnode **vpp, 1035 struct componentname *cnp) 1036 { 1037 struct inode *ip, *pdir; 1038 struct vnode *tvp; 1039 int error; 1040 struct ufs_lookup_results *ulr; 1041 1042 pdir = VTOI(dvp); 1043 1044 /* XXX should handle this material another way */ 1045 ulr = &pdir->i_crap; 1046 UFS_CHECK_CRAPCOUNTER(pdir); 1047 1048 *vpp = NULL; 1049 if ((mode & IFMT) == 0) 1050 mode |= IFREG; 1051 1052 if ((error = ext2fs_valloc(dvp, mode, cnp->cn_cred, &tvp)) != 0) { 1053 return (error); 1054 } 1055 ip = VTOI(tvp); 1056 ip->i_uid = kauth_cred_geteuid(cnp->cn_cred); 1057 ip->i_e2fs_uid = ip->i_uid & 0xffff; 1058 ip->i_e2fs_gid = pdir->i_e2fs_gid; 1059 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 1060 ip->i_e2fs_uid_high = (ip->i_uid >> 16) & 0xffff; 1061 ip->i_e2fs_gid_high = pdir->i_e2fs_gid_high; 1062 } else { 1063 ip->i_e2fs_uid_high = 0; 1064 ip->i_e2fs_gid_high = 0; 1065 } 1066 ip->i_gid = ip->i_e2fs_gid | (ip->i_e2fs_gid_high << 16); 1067 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 1068 ip->i_e2fs_mode = mode; 1069 tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */ 1070 ip->i_e2fs_nlink = 1; 1071 1072 /* Authorize setting SGID if needed. */ 1073 if (ip->i_e2fs_mode & ISGID) { 1074 error = kauth_authorize_vnode(cnp->cn_cred, KAUTH_VNODE_WRITE_SECURITY, 1075 tvp, NULL, genfs_can_chmod(tvp->v_type, cnp->cn_cred, ip->i_uid, 1076 ip->i_gid, mode)); 1077 if (error) 1078 ip->i_e2fs_mode &= ~ISGID; 1079 } 1080 1081 /* 1082 * Make sure inode goes to disk before directory entry. 1083 */ 1084 if ((error = ext2fs_update(tvp, NULL, NULL, UPDATE_WAIT)) != 0) 1085 goto bad; 1086 error = ext2fs_direnter(ip, dvp, ulr, cnp); 1087 if (error != 0) 1088 goto bad; 1089 *vpp = tvp; 1090 return (0); 1091 1092 bad: 1093 /* 1094 * Write error occurred trying to update the inode 1095 * or the directory so must deallocate the inode. 1096 */ 1097 tvp->v_type = VNON; /* Stop explosion if VBLK */ 1098 ip->i_e2fs_nlink = 0; 1099 ip->i_flag |= IN_CHANGE; 1100 vput(tvp); 1101 return (error); 1102 } 1103 1104 /* 1105 * Reclaim an inode so that it can be used for other purposes. 1106 */ 1107 int 1108 ext2fs_reclaim(void *v) 1109 { 1110 struct vop_reclaim_args /* { 1111 struct vnode *a_vp; 1112 } */ *ap = v; 1113 struct vnode *vp = ap->a_vp; 1114 struct inode *ip = VTOI(vp); 1115 int error; 1116 1117 /* 1118 * The inode must be freed and updated before being removed 1119 * from its hash chain. Other threads trying to gain a hold 1120 * or lock on the inode will be stalled. 1121 */ 1122 if (ip->i_omode == 1 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) 1123 ext2fs_vfree(vp, ip->i_number, ip->i_e2fs_mode); 1124 if ((error = ufs_reclaim(vp)) != 0) 1125 return (error); 1126 if (ip->i_din.e2fs_din != NULL) 1127 kmem_free(ip->i_din.e2fs_din, EXT2_DINODE_SIZE(ip->i_e2fs)); 1128 genfs_node_destroy(vp); 1129 pool_put(&ext2fs_inode_pool, vp->v_data); 1130 vp->v_data = NULL; 1131 return (0); 1132 } 1133 1134 /* Global vfs data structures for ext2fs. */ 1135 int (**ext2fs_vnodeop_p)(void *); 1136 const struct vnodeopv_entry_desc ext2fs_vnodeop_entries[] = { 1137 { &vop_default_desc, vn_default_error }, 1138 { &vop_lookup_desc, ext2fs_lookup }, /* lookup */ 1139 { &vop_create_desc, ext2fs_create }, /* create */ 1140 { &vop_mknod_desc, ext2fs_mknod }, /* mknod */ 1141 { &vop_open_desc, ext2fs_open }, /* open */ 1142 { &vop_close_desc, ufs_close }, /* close */ 1143 { &vop_access_desc, ext2fs_access }, /* access */ 1144 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1145 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1146 { &vop_read_desc, ext2fs_read }, /* read */ 1147 { &vop_write_desc, ext2fs_write }, /* write */ 1148 { &vop_fallocate_desc, genfs_eopnotsupp }, /* fallocate */ 1149 { &vop_fdiscard_desc, genfs_eopnotsupp }, /* fdiscard */ 1150 { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ 1151 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1152 { &vop_poll_desc, ufs_poll }, /* poll */ 1153 { &vop_kqfilter_desc, genfs_kqfilter }, /* kqfilter */ 1154 { &vop_revoke_desc, ufs_revoke }, /* revoke */ 1155 { &vop_mmap_desc, ufs_mmap }, /* mmap */ 1156 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1157 { &vop_seek_desc, ufs_seek }, /* seek */ 1158 { &vop_remove_desc, ext2fs_remove }, /* remove */ 1159 { &vop_link_desc, ext2fs_link }, /* link */ 1160 { &vop_rename_desc, ext2fs_rename }, /* rename */ 1161 { &vop_mkdir_desc, ext2fs_mkdir }, /* mkdir */ 1162 { &vop_rmdir_desc, ext2fs_rmdir }, /* rmdir */ 1163 { &vop_symlink_desc, ext2fs_symlink }, /* symlink */ 1164 { &vop_readdir_desc, ext2fs_readdir }, /* readdir */ 1165 { &vop_readlink_desc, ext2fs_readlink }, /* readlink */ 1166 { &vop_abortop_desc, ufs_abortop }, /* abortop */ 1167 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1168 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1169 { &vop_lock_desc, ufs_lock }, /* lock */ 1170 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1171 { &vop_bmap_desc, ext2fs_bmap }, /* bmap */ 1172 { &vop_strategy_desc, ufs_strategy }, /* strategy */ 1173 { &vop_print_desc, ufs_print }, /* print */ 1174 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1175 { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ 1176 { &vop_advlock_desc, ext2fs_advlock }, /* advlock */ 1177 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1178 { &vop_getpages_desc, genfs_getpages }, /* getpages */ 1179 { &vop_putpages_desc, genfs_putpages }, /* putpages */ 1180 { NULL, NULL } 1181 }; 1182 const struct vnodeopv_desc ext2fs_vnodeop_opv_desc = 1183 { &ext2fs_vnodeop_p, ext2fs_vnodeop_entries }; 1184 1185 int (**ext2fs_specop_p)(void *); 1186 const struct vnodeopv_entry_desc ext2fs_specop_entries[] = { 1187 { &vop_default_desc, vn_default_error }, 1188 { &vop_lookup_desc, spec_lookup }, /* lookup */ 1189 { &vop_create_desc, spec_create }, /* create */ 1190 { &vop_mknod_desc, spec_mknod }, /* mknod */ 1191 { &vop_open_desc, spec_open }, /* open */ 1192 { &vop_close_desc, ufsspec_close }, /* close */ 1193 { &vop_access_desc, ext2fs_access }, /* access */ 1194 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1195 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1196 { &vop_read_desc, ufsspec_read }, /* read */ 1197 { &vop_write_desc, ufsspec_write }, /* write */ 1198 { &vop_fallocate_desc, spec_fallocate }, /* fallocate */ 1199 { &vop_fdiscard_desc, spec_fdiscard }, /* fdiscard */ 1200 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ 1201 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1202 { &vop_poll_desc, spec_poll }, /* poll */ 1203 { &vop_kqfilter_desc, spec_kqfilter }, /* kqfilter */ 1204 { &vop_revoke_desc, spec_revoke }, /* revoke */ 1205 { &vop_mmap_desc, spec_mmap }, /* mmap */ 1206 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1207 { &vop_seek_desc, spec_seek }, /* seek */ 1208 { &vop_remove_desc, spec_remove }, /* remove */ 1209 { &vop_link_desc, spec_link }, /* link */ 1210 { &vop_rename_desc, spec_rename }, /* rename */ 1211 { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ 1212 { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ 1213 { &vop_symlink_desc, spec_symlink }, /* symlink */ 1214 { &vop_readdir_desc, spec_readdir }, /* readdir */ 1215 { &vop_readlink_desc, spec_readlink }, /* readlink */ 1216 { &vop_abortop_desc, spec_abortop }, /* abortop */ 1217 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1218 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1219 { &vop_lock_desc, ufs_lock }, /* lock */ 1220 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1221 { &vop_bmap_desc, spec_bmap }, /* bmap */ 1222 { &vop_strategy_desc, spec_strategy }, /* strategy */ 1223 { &vop_print_desc, ufs_print }, /* print */ 1224 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1225 { &vop_pathconf_desc, spec_pathconf }, /* pathconf */ 1226 { &vop_advlock_desc, spec_advlock }, /* advlock */ 1227 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1228 { &vop_getpages_desc, spec_getpages }, /* getpages */ 1229 { &vop_putpages_desc, spec_putpages }, /* putpages */ 1230 { NULL, NULL } 1231 }; 1232 const struct vnodeopv_desc ext2fs_specop_opv_desc = 1233 { &ext2fs_specop_p, ext2fs_specop_entries }; 1234 1235 int (**ext2fs_fifoop_p)(void *); 1236 const struct vnodeopv_entry_desc ext2fs_fifoop_entries[] = { 1237 { &vop_default_desc, vn_default_error }, 1238 { &vop_lookup_desc, vn_fifo_bypass }, /* lookup */ 1239 { &vop_create_desc, vn_fifo_bypass }, /* create */ 1240 { &vop_mknod_desc, vn_fifo_bypass }, /* mknod */ 1241 { &vop_open_desc, vn_fifo_bypass }, /* open */ 1242 { &vop_close_desc, ufsfifo_close }, /* close */ 1243 { &vop_access_desc, ext2fs_access }, /* access */ 1244 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1245 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1246 { &vop_read_desc, ufsfifo_read }, /* read */ 1247 { &vop_write_desc, ufsfifo_write }, /* write */ 1248 { &vop_fallocate_desc, vn_fifo_bypass }, /* fallocate */ 1249 { &vop_fdiscard_desc, vn_fifo_bypass }, /* fdiscard */ 1250 { &vop_ioctl_desc, vn_fifo_bypass }, /* ioctl */ 1251 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1252 { &vop_poll_desc, vn_fifo_bypass }, /* poll */ 1253 { &vop_kqfilter_desc, vn_fifo_bypass }, /* kqfilter */ 1254 { &vop_revoke_desc, vn_fifo_bypass }, /* revoke */ 1255 { &vop_mmap_desc, vn_fifo_bypass }, /* mmap */ 1256 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1257 { &vop_seek_desc, vn_fifo_bypass }, /* seek */ 1258 { &vop_remove_desc, vn_fifo_bypass }, /* remove */ 1259 { &vop_link_desc, vn_fifo_bypass }, /* link */ 1260 { &vop_rename_desc, vn_fifo_bypass }, /* rename */ 1261 { &vop_mkdir_desc, vn_fifo_bypass }, /* mkdir */ 1262 { &vop_rmdir_desc, vn_fifo_bypass }, /* rmdir */ 1263 { &vop_symlink_desc, vn_fifo_bypass }, /* symlink */ 1264 { &vop_readdir_desc, vn_fifo_bypass }, /* readdir */ 1265 { &vop_readlink_desc, vn_fifo_bypass }, /* readlink */ 1266 { &vop_abortop_desc, vn_fifo_bypass }, /* abortop */ 1267 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1268 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1269 { &vop_lock_desc, ufs_lock }, /* lock */ 1270 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1271 { &vop_bmap_desc, vn_fifo_bypass }, /* bmap */ 1272 { &vop_strategy_desc, vn_fifo_bypass }, /* strategy */ 1273 { &vop_print_desc, ufs_print }, /* print */ 1274 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1275 { &vop_pathconf_desc, vn_fifo_bypass }, /* pathconf */ 1276 { &vop_advlock_desc, vn_fifo_bypass }, /* advlock */ 1277 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1278 { &vop_putpages_desc, vn_fifo_bypass }, /* putpages */ 1279 { NULL, NULL } 1280 }; 1281 const struct vnodeopv_desc ext2fs_fifoop_opv_desc = 1282 { &ext2fs_fifoop_p, ext2fs_fifoop_entries }; 1283
Indexes created Mon Sep 29 21:09:56 GMT 2025