ext2fs_vnops.c revision 1.125
1 /* $NetBSD: ext2fs_vnops.c,v 1.125 2016/08/15 18:38:10 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 1.125 2016/08/15 18:38:10 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 #include <ufs/ext2fs/ext2fs_xattr.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, 1); 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, 1)) != 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 vcache_get 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 = vcache_get(mp, &ino, sizeof(ino), vpp); 192 if (error != 0) { 193 *vpp = NULL; 194 return error; 195 } 196 return 0; 197 } 198 199 /* 200 * Open called. 201 * 202 * Just check the APPEND flag. 203 */ 204 /* ARGSUSED */ 205 int 206 ext2fs_open(void *v) 207 { 208 struct vop_open_args /* { 209 struct vnode *a_vp; 210 int a_mode; 211 kauth_cred_t a_cred; 212 } */ *ap = v; 213 214 /* 215 * Files marked append-only must be opened for appending. 216 */ 217 if ((VTOI(ap->a_vp)->i_e2fs_flags & EXT2_APPEND) && 218 (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE) 219 return EPERM; 220 return 0; 221 } 222 223 static int 224 ext2fs_check_possible(struct vnode *vp, struct inode *ip, mode_t mode) 225 { 226 227 /* 228 * Disallow write attempts on read-only file systems; 229 * unless the file is a socket, fifo, or a block or 230 * character device resident on the file system. 231 */ 232 if (mode & VWRITE) { 233 switch (vp->v_type) { 234 case VDIR: 235 case VLNK: 236 case VREG: 237 if (vp->v_mount->mnt_flag & MNT_RDONLY) 238 return EROFS; 239 break; 240 default: 241 break; 242 } 243 } 244 245 /* If immutable bit set, nobody gets to write it. */ 246 if ((mode & VWRITE) && (ip->i_e2fs_flags & EXT2_IMMUTABLE)) 247 return EPERM; 248 249 return 0; 250 } 251 252 static int 253 ext2fs_check_permitted(struct vnode *vp, struct inode *ip, mode_t mode, 254 kauth_cred_t cred) 255 { 256 257 return kauth_authorize_vnode(cred, KAUTH_ACCESS_ACTION(mode, vp->v_type, 258 ip->i_e2fs_mode & ALLPERMS), vp, NULL, genfs_can_access(vp->v_type, 259 ip->i_e2fs_mode & ALLPERMS, ip->i_uid, ip->i_gid, mode, cred)); 260 } 261 262 int 263 ext2fs_access(void *v) 264 { 265 struct vop_access_args /* { 266 struct vnode *a_vp; 267 int a_mode; 268 kauth_cred_t a_cred; 269 } */ *ap = v; 270 struct vnode *vp = ap->a_vp; 271 struct inode *ip = VTOI(vp); 272 mode_t mode = ap->a_mode; 273 int error; 274 275 error = ext2fs_check_possible(vp, ip, mode); 276 if (error) 277 return error; 278 279 error = ext2fs_check_permitted(vp, ip, mode, ap->a_cred); 280 281 return error; 282 } 283 284 /* ARGSUSED */ 285 int 286 ext2fs_getattr(void *v) 287 { 288 struct vop_getattr_args /* { 289 struct vnode *a_vp; 290 struct vattr *a_vap; 291 kauth_cred_t a_cred; 292 } */ *ap = v; 293 struct vnode *vp = ap->a_vp; 294 struct inode *ip = VTOI(vp); 295 struct vattr *vap = ap->a_vap; 296 297 EXT2FS_ITIMES(ip, NULL, NULL, NULL); 298 /* 299 * Copy from inode table 300 */ 301 vap->va_fsid = ip->i_dev; 302 vap->va_fileid = ip->i_number; 303 vap->va_mode = ip->i_e2fs_mode & ALLPERMS; 304 vap->va_nlink = ip->i_e2fs_nlink; 305 vap->va_uid = ip->i_uid; 306 vap->va_gid = ip->i_gid; 307 vap->va_rdev = (dev_t)fs2h32(ip->i_din.e2fs_din->e2di_rdev); 308 vap->va_size = vp->v_size; 309 EXT2_DINODE_TIME_GET(&vap->va_atime, ip->i_din.e2fs_din, e2di_atime, EXT2_DINODE_SIZE(ip->i_e2fs)); 310 EXT2_DINODE_TIME_GET(&vap->va_mtime, ip->i_din.e2fs_din, e2di_mtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 311 EXT2_DINODE_TIME_GET(&vap->va_ctime, ip->i_din.e2fs_din, e2di_ctime, EXT2_DINODE_SIZE(ip->i_e2fs)); 312 if (EXT2_DINODE_FITS(ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs))) { 313 EXT2_DINODE_TIME_GET(&vap->va_birthtime, ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 314 } 315 316 vap->va_flags = 0; 317 vap->va_flags |= (ip->i_e2fs_flags & EXT2_NODUMP) ? UF_NODUMP : 0; 318 #ifdef EXT2FS_SYSTEM_FLAGS 319 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? SF_IMMUTABLE : 0; 320 vap->va_flags |= (ip->i_e2fs_flags & EXT2_APPEND) ? SF_APPEND : 0; 321 #else 322 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? UF_IMMUTABLE : 0; 323 vap->va_flags |= (ip->i_e2fs_flags & EXT2_APPEND) ? UF_APPEND : 0; 324 #endif 325 326 vap->va_gen = ip->i_e2fs_gen; 327 /* this doesn't belong here */ 328 if (vp->v_type == VBLK) 329 vap->va_blocksize = BLKDEV_IOSIZE; 330 else if (vp->v_type == VCHR) 331 vap->va_blocksize = MAXBSIZE; 332 else 333 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; 334 vap->va_bytes = dbtob(ext2fs_nblock(ip)); 335 vap->va_type = vp->v_type; 336 vap->va_filerev = ip->i_modrev; 337 return 0; 338 } 339 340 /* 341 * Set attribute vnode op. called from several syscalls 342 */ 343 int 344 ext2fs_setattr(void *v) 345 { 346 struct vop_setattr_args /* { 347 struct vnode *a_vp; 348 struct vattr *a_vap; 349 kauth_cred_t a_cred; 350 } */ *ap = v; 351 struct vattr *vap = ap->a_vap; 352 struct vnode *vp = ap->a_vp; 353 struct inode *ip = VTOI(vp); 354 kauth_cred_t cred = ap->a_cred; 355 struct lwp *l = curlwp; 356 int error; 357 kauth_action_t action = KAUTH_VNODE_WRITE_FLAGS; 358 bool changing_sysflags = false; 359 360 /* 361 * Check for unsettable attributes. 362 */ 363 if ((vap->va_type != VNON) || (vap->va_nlink != (nlink_t)VNOVAL) || 364 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) || 365 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) || 366 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) { 367 return EINVAL; 368 } 369 if (vap->va_flags != VNOVAL) { 370 if (vp->v_mount->mnt_flag & MNT_RDONLY) 371 return EROFS; 372 373 /* 374 * Check if we're allowed to change the flags. 375 * If EXT2FS_SYSTEM_FLAGS is set, then the flags are treated 376 * as system flags, otherwise they're considered to be user 377 * flags. 378 */ 379 #ifdef EXT2FS_SYSTEM_FLAGS 380 /* Indicate we're changing system flags if we are. */ 381 if ((vap->va_flags & SF_APPEND) || 382 (vap->va_flags & SF_IMMUTABLE)) { 383 action |= KAUTH_VNODE_WRITE_SYSFLAGS; 384 changing_sysflags = true; 385 } 386 387 /* Indicate the node has system flags if it does. */ 388 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) { 389 action |= KAUTH_VNODE_HAS_SYSFLAGS; 390 } 391 #endif /* EXT2FS_SYSTEM_FLAGS */ 392 393 error = kauth_authorize_vnode(cred, action, vp, NULL, 394 genfs_can_chflags(cred, vp->v_type, ip->i_uid, 395 changing_sysflags)); 396 if (error) 397 return error; 398 399 ip->i_e2fs_flags &= ~(EXT2_APPEND | EXT2_IMMUTABLE | EXT2_NODUMP); 400 #ifdef EXT2FS_SYSTEM_FLAGS 401 ip->i_e2fs_flags |= 402 (vap->va_flags & SF_APPEND) ? EXT2_APPEND : 0 | 403 (vap->va_flags & SF_IMMUTABLE) ? EXT2_IMMUTABLE : 0; 404 #else 405 ip->i_e2fs_flags |= 406 (vap->va_flags & UF_APPEND) ? EXT2_APPEND : 0 | 407 (vap->va_flags & UF_IMMUTABLE) ? EXT2_IMMUTABLE : 0; 408 #endif 409 ip->i_e2fs_flags |= 410 (vap->va_flags & UF_NODUMP) ? EXT2_NODUMP : 0; 411 ip->i_flag |= IN_CHANGE; 412 if (vap->va_flags & (IMMUTABLE | APPEND)) 413 return 0; 414 } 415 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) 416 return EPERM; 417 /* 418 * Go through the fields and update iff not VNOVAL. 419 */ 420 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) { 421 if (vp->v_mount->mnt_flag & MNT_RDONLY) 422 return EROFS; 423 error = ext2fs_chown(vp, vap->va_uid, vap->va_gid, cred, l); 424 if (error) 425 return error; 426 } 427 if (vap->va_size != VNOVAL) { 428 /* 429 * Disallow write attempts on read-only file systems; 430 * unless the file is a socket, fifo, or a block or 431 * character device resident on the file system. 432 */ 433 switch (vp->v_type) { 434 case VDIR: 435 return EISDIR; 436 case VLNK: 437 case VREG: 438 if (vp->v_mount->mnt_flag & MNT_RDONLY) 439 return EROFS; 440 default: 441 break; 442 } 443 error = ext2fs_truncate(vp, vap->va_size, 0, cred); 444 if (error) 445 return error; 446 } 447 ip = VTOI(vp); 448 if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL || vap->va_birthtime.tv_sec != VNOVAL) { 449 if (vp->v_mount->mnt_flag & MNT_RDONLY) 450 return EROFS; 451 error = kauth_authorize_vnode(cred, KAUTH_VNODE_WRITE_TIMES, vp, 452 NULL, genfs_can_chtimes(vp, vap->va_vaflags, ip->i_uid, 453 cred)); 454 if (error) 455 return error; 456 if (vap->va_atime.tv_sec != VNOVAL) 457 if (!(vp->v_mount->mnt_flag & MNT_NOATIME)) 458 ip->i_flag |= IN_ACCESS; 459 if (vap->va_mtime.tv_sec != VNOVAL) { 460 ip->i_flag |= IN_CHANGE | IN_UPDATE; 461 if (vp->v_mount->mnt_flag & MNT_RELATIME) 462 ip->i_flag |= IN_ACCESS; 463 } 464 if (vap->va_birthtime.tv_sec != VNOVAL && 465 EXT2_DINODE_FITS(ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs))) { 466 467 EXT2_DINODE_TIME_SET(&vap->va_birthtime, ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 468 } 469 error = ext2fs_update(vp, &vap->va_atime, &vap->va_mtime, 470 UPDATE_WAIT); 471 if (error) 472 return error; 473 } 474 error = 0; 475 if (vap->va_mode != (mode_t)VNOVAL) { 476 if (vp->v_mount->mnt_flag & MNT_RDONLY) 477 return EROFS; 478 error = ext2fs_chmod(vp, (int)vap->va_mode, cred, l); 479 } 480 VN_KNOTE(vp, NOTE_ATTRIB); 481 return error; 482 } 483 484 /* 485 * Change the mode on a file. 486 * Inode must be locked before calling. 487 */ 488 static int 489 ext2fs_chmod(struct vnode *vp, int mode, kauth_cred_t cred, struct lwp *l) 490 { 491 struct inode *ip = VTOI(vp); 492 int error; 493 494 error = kauth_authorize_vnode(cred, KAUTH_VNODE_WRITE_SECURITY, vp, 495 NULL, genfs_can_chmod(vp->v_type, cred, ip->i_uid, ip->i_gid, 496 mode)); 497 if (error) 498 return error; 499 500 ip->i_e2fs_mode &= ~ALLPERMS; 501 ip->i_e2fs_mode |= (mode & ALLPERMS); 502 ip->i_flag |= IN_CHANGE; 503 return 0; 504 } 505 506 /* 507 * Perform chown operation on inode ip; 508 * inode must be locked prior to call. 509 */ 510 static int 511 ext2fs_chown(struct vnode *vp, uid_t uid, gid_t gid, kauth_cred_t cred, 512 struct lwp *l) 513 { 514 struct inode *ip = VTOI(vp); 515 uid_t ouid; 516 gid_t ogid; 517 int error; 518 519 if (uid == (uid_t)VNOVAL) 520 uid = ip->i_uid; 521 if (gid == (gid_t)VNOVAL) 522 gid = ip->i_gid; 523 524 error = kauth_authorize_vnode(cred, KAUTH_VNODE_CHANGE_OWNERSHIP, vp, 525 NULL, genfs_can_chown(cred, ip->i_uid, ip->i_gid, uid, gid)); 526 if (error) 527 return error; 528 529 ogid = ip->i_gid; 530 ouid = ip->i_uid; 531 532 ip->i_e2fs_gid = gid & 0xffff; 533 ip->i_e2fs_uid = uid & 0xffff; 534 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 535 ip->i_e2fs_gid_high = (gid >> 16) & 0xffff; 536 ip->i_e2fs_uid_high = (uid >> 16) & 0xffff; 537 } else { 538 ip->i_e2fs_gid_high = 0; 539 ip->i_e2fs_uid_high = 0; 540 } 541 if (ouid != uid || ogid != gid) { 542 ext2fs_set_inode_guid(ip); 543 ip->i_flag |= IN_CHANGE; 544 } 545 if (ouid != uid && (ip->i_e2fs_mode & ISUID) && 546 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SUID, 547 vp, NULL, EPERM) != 0) 548 ip->i_e2fs_mode &= ~ISUID; 549 if (ogid != gid && (ip->i_e2fs_mode & ISGID) && 550 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SGID, 551 vp, NULL, EPERM) != 0) 552 ip->i_e2fs_mode &= ~ISGID; 553 return 0; 554 } 555 556 int 557 ext2fs_remove(void *v) 558 { 559 struct vop_remove_args /* { 560 struct vnode *a_dvp; 561 struct vnode *a_vp; 562 struct componentname *a_cnp; 563 } */ *ap = v; 564 struct inode *ip; 565 struct vnode *vp = ap->a_vp; 566 struct vnode *dvp = ap->a_dvp; 567 struct ufs_lookup_results *ulr; 568 int error; 569 570 /* XXX should handle this material another way */ 571 ulr = &VTOI(dvp)->i_crap; 572 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 573 574 ip = VTOI(vp); 575 if (vp->v_type == VDIR || 576 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) || 577 (VTOI(dvp)->i_e2fs_flags & EXT2_APPEND)) { 578 error = EPERM; 579 } else { 580 error = ext2fs_dirremove(dvp, ulr, ap->a_cnp); 581 if (error == 0) { 582 ip->i_e2fs_nlink--; 583 ip->i_flag |= IN_CHANGE; 584 } 585 } 586 587 VN_KNOTE(vp, NOTE_DELETE); 588 VN_KNOTE(dvp, NOTE_WRITE); 589 if (dvp == vp) 590 vrele(vp); 591 else 592 vput(vp); 593 vput(dvp); 594 return error; 595 } 596 597 /* 598 * ext2fs_link: create hard link. 599 */ 600 int 601 ext2fs_link(void *v) 602 { 603 struct vop_link_v2_args /* { 604 struct vnode *a_dvp; 605 struct vnode *a_vp; 606 struct componentname *a_cnp; 607 } */ *ap = v; 608 struct vnode *dvp = ap->a_dvp; 609 struct vnode *vp = ap->a_vp; 610 struct componentname *cnp = ap->a_cnp; 611 struct inode *ip; 612 int error; 613 struct ufs_lookup_results *ulr; 614 615 KASSERT(dvp != vp); 616 KASSERT(vp->v_type != VDIR); 617 KASSERT(dvp->v_mount == vp->v_mount); 618 619 /* XXX should handle this material another way */ 620 ulr = &VTOI(dvp)->i_crap; 621 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 622 623 error = vn_lock(vp, LK_EXCLUSIVE); 624 if (error) { 625 VOP_ABORTOP(dvp, cnp); 626 goto out2; 627 } 628 ip = VTOI(vp); 629 if ((nlink_t)ip->i_e2fs_nlink >= EXT2FS_LINK_MAX) { 630 VOP_ABORTOP(dvp, cnp); 631 error = EMLINK; 632 goto out1; 633 } 634 if (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) { 635 VOP_ABORTOP(dvp, cnp); 636 error = EPERM; 637 goto out1; 638 } 639 ip->i_e2fs_nlink++; 640 ip->i_flag |= IN_CHANGE; 641 error = ext2fs_update(vp, NULL, NULL, UPDATE_WAIT); 642 if (!error) 643 error = ext2fs_direnter(ip, dvp, ulr, cnp); 644 if (error) { 645 ip->i_e2fs_nlink--; 646 ip->i_flag |= IN_CHANGE; 647 } 648 out1: 649 VOP_UNLOCK(vp); 650 out2: 651 VN_KNOTE(vp, NOTE_LINK); 652 VN_KNOTE(dvp, NOTE_WRITE); 653 return error; 654 } 655 656 /* 657 * Mkdir system call 658 */ 659 int 660 ext2fs_mkdir(void *v) 661 { 662 struct vop_mkdir_v3_args /* { 663 struct vnode *a_dvp; 664 struct vnode **a_vpp; 665 struct componentname *a_cnp; 666 struct vattr *a_vap; 667 } */ *ap = v; 668 struct vnode *dvp = ap->a_dvp; 669 struct componentname *cnp = ap->a_cnp; 670 struct inode *ip, *dp = VTOI(dvp); 671 struct vnode *tvp; 672 struct ext2fs_dirtemplate dirtemplate; 673 int error; 674 struct ufs_lookup_results *ulr; 675 676 /* XXX should handle this material another way */ 677 ulr = &VTOI(dvp)->i_crap; 678 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 679 680 /* 681 * Acquire the inode, but don't sync/direnter it just yet 682 */ 683 error = ext2fs_makeinode(IFDIR | ap->a_vap->va_mode, ap->a_dvp, 684 &tvp, ap->a_cnp, 0); 685 if (error) 686 goto out; 687 688 /* the link count is going to be 2 when all is done */ 689 ip = VTOI(tvp); 690 ip->i_e2fs_nlink = 2; 691 692 /* 693 * Bump link count in parent directory 694 * to reflect work done below. Should 695 * be done before reference is created 696 * so reparation is possible if we crash. 697 */ 698 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 699 dp->i_e2fs_nlink++; 700 701 /* 702 * If we hit the link limit, for directories just set the nlink 703 * to special value 1, which means the link count is bigger 704 * than EXT2FS_LINK_MAX. 705 */ 706 if ((nlink_t)dp->i_e2fs_nlink >= EXT2FS_LINK_MAX) { 707 dp->i_e2fs_nlink = EXT2FS_LINK_INF; 708 709 /* set the feature flag DIR_NLINK if not set already */ 710 if (!EXT2F_HAS_ROCOMPAT_FEATURE(dp->i_e2fs, EXT2F_ROCOMPAT_DIR_NLINK)) { 711 dp->i_e2fs->e2fs.e2fs_features_rocompat |= EXT2F_ROCOMPAT_DIR_NLINK; 712 dp->i_e2fs->e2fs_fmod = 1; 713 } 714 } 715 716 dp->i_flag |= IN_CHANGE; 717 if ((error = ext2fs_update(dvp, NULL, NULL, UPDATE_DIROP)) != 0) 718 goto bad; 719 720 /* Initialize directory with "." and ".." from static template. */ 721 memset(&dirtemplate, 0, sizeof(dirtemplate)); 722 dirtemplate.dot_ino = h2fs32(ip->i_number); 723 dirtemplate.dot_reclen = h2fs16(12); 724 dirtemplate.dot_namlen = 1; 725 if (EXT2F_HAS_INCOMPAT_FEATURE(dp->i_e2fs, EXT2F_INCOMPAT_FTYPE)) { 726 dirtemplate.dot_type = EXT2_FT_DIR; 727 } 728 dirtemplate.dot_name[0] = '.'; 729 dirtemplate.dotdot_ino = h2fs32(dp->i_number); 730 dirtemplate.dotdot_reclen = h2fs16(VTOI(dvp)->i_e2fs->e2fs_bsize - 12); 731 dirtemplate.dotdot_namlen = 2; 732 if (EXT2F_HAS_INCOMPAT_FEATURE(dp->i_e2fs, EXT2F_INCOMPAT_FTYPE)) { 733 dirtemplate.dotdot_type = EXT2_FT_DIR; 734 } 735 dirtemplate.dotdot_name[0] = dirtemplate.dotdot_name[1] = '.'; 736 error = ufs_bufio(UIO_WRITE, tvp, (void *)&dirtemplate, 737 sizeof (dirtemplate), (off_t)0, IO_NODELOCKED|IO_SYNC, 738 cnp->cn_cred, (size_t *)0, NULL); 739 if (error) { 740 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 741 dp->i_e2fs_nlink--; 742 dp->i_flag |= IN_CHANGE; 743 goto bad; 744 } 745 if (VTOI(dvp)->i_e2fs->e2fs_bsize > dvp->v_mount->mnt_stat.f_bsize) 746 panic("ext2fs_mkdir: blksize"); /* XXX should grow with balloc() */ 747 else { 748 error = ext2fs_setsize(ip, VTOI(dvp)->i_e2fs->e2fs_bsize); 749 if (error) { 750 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 751 dp->i_e2fs_nlink--; 752 dp->i_flag |= IN_CHANGE; 753 goto bad; 754 } 755 ip->i_flag |= IN_CHANGE; 756 uvm_vnp_setsize(tvp, ext2fs_size(ip)); 757 } 758 759 /* Directory set up, now install its entry in the parent directory. */ 760 error = ext2fs_direnter(ip, dvp, ulr, cnp); 761 if (error != 0) { 762 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 763 dp->i_e2fs_nlink--; 764 dp->i_flag |= IN_CHANGE; 765 } 766 bad: 767 /* 768 * No need to do an explicit ext2fs_truncate here, vrele will do this 769 * for us because we set the link count to 0. 770 */ 771 if (error) { 772 ip->i_e2fs_nlink = 0; 773 ip->i_flag |= IN_CHANGE; 774 vput(tvp); 775 } else { 776 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK); 777 VOP_UNLOCK(tvp); 778 *ap->a_vpp = tvp; 779 } 780 out: 781 return error; 782 } 783 784 /* 785 * Rmdir system call. 786 */ 787 int 788 ext2fs_rmdir(void *v) 789 { 790 struct vop_rmdir_args /* { 791 struct vnode *a_dvp; 792 struct vnode *a_vp; 793 struct componentname *a_cnp; 794 } */ *ap = v; 795 struct vnode *vp = ap->a_vp; 796 struct vnode *dvp = ap->a_dvp; 797 struct componentname *cnp = ap->a_cnp; 798 struct inode *ip, *dp; 799 int error; 800 struct ufs_lookup_results *ulr; 801 802 ip = VTOI(vp); 803 dp = VTOI(dvp); 804 805 /* XXX should handle this material another way */ 806 ulr = &dp->i_crap; 807 UFS_CHECK_CRAPCOUNTER(dp); 808 809 /* 810 * No rmdir "." please. 811 */ 812 if (dp == ip) { 813 vrele(dvp); 814 vput(vp); 815 return EINVAL; 816 } 817 /* 818 * Verify the directory is empty (and valid). 819 * (Rmdir ".." won't be valid since 820 * ".." will contain a reference to 821 * the current directory and thus be 822 * non-empty.) 823 */ 824 error = 0; 825 if ((ip->i_e2fs_nlink != 2 && ip->i_e2fs_nlink != EXT2FS_LINK_INF) || 826 !ext2fs_dirempty(ip, dp->i_number, cnp->cn_cred)) { 827 error = ENOTEMPTY; 828 goto out; 829 } 830 if ((dp->i_e2fs_flags & EXT2_APPEND) || 831 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND))) { 832 error = EPERM; 833 goto out; 834 } 835 /* 836 * Delete reference to directory before purging 837 * inode. If we crash in between, the directory 838 * will be reattached to lost+found, 839 */ 840 error = ext2fs_dirremove(dvp, ulr, cnp); 841 if (error != 0) 842 goto out; 843 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 844 dp->i_e2fs_nlink--; 845 dp->i_flag |= IN_CHANGE; 846 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK); 847 cache_purge(dvp); 848 vput(dvp); 849 dvp = NULL; 850 /* 851 * Truncate inode. The only stuff left 852 * in the directory is "." and "..". The 853 * "." reference is inconsequential since 854 * we're quashing it. The ".." reference 855 * has already been adjusted above. We've 856 * removed the "." reference and the reference 857 * in the parent directory, but there may be 858 * other hard links so decrement by 2 and 859 * worry about them later. 860 */ 861 ip->i_e2fs_nlink -= 2; 862 error = ext2fs_truncate(vp, (off_t)0, IO_SYNC, cnp->cn_cred); 863 cache_purge(ITOV(ip)); 864 out: 865 VN_KNOTE(vp, NOTE_DELETE); 866 if (dvp) 867 vput(dvp); 868 vput(vp); 869 return error; 870 } 871 872 /* 873 * symlink -- make a symbolic link 874 */ 875 int 876 ext2fs_symlink(void *v) 877 { 878 struct vop_symlink_v3_args /* { 879 struct vnode *a_dvp; 880 struct vnode **a_vpp; 881 struct componentname *a_cnp; 882 struct vattr *a_vap; 883 char *a_target; 884 } */ *ap = v; 885 struct vnode *vp, **vpp; 886 struct inode *ip; 887 int len, error; 888 889 vpp = ap->a_vpp; 890 error = ext2fs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp, 891 vpp, ap->a_cnp, 1); 892 if (error) 893 return error; 894 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 895 vp = *vpp; 896 len = strlen(ap->a_target); 897 ip = VTOI(vp); 898 if (len < ip->i_ump->um_maxsymlinklen) { 899 memcpy(ip->i_din.e2fs_din->e2di_shortlink, ap->a_target, len); 900 error = ext2fs_setsize(ip, len); 901 if (error) 902 goto bad; 903 ip->i_flag |= IN_CHANGE | IN_UPDATE; 904 if (vp->v_mount->mnt_flag & MNT_RELATIME) 905 ip->i_flag |= IN_ACCESS; 906 uvm_vnp_setsize(vp, len); 907 } else 908 error = ufs_bufio(UIO_WRITE, vp, ap->a_target, len, (off_t)0, 909 IO_NODELOCKED, ap->a_cnp->cn_cred, (size_t *)0, NULL); 910 bad: 911 VOP_UNLOCK(vp); 912 if (error) 913 vrele(vp); 914 return error; 915 } 916 917 /* 918 * Return target name of a symbolic link 919 */ 920 int 921 ext2fs_readlink(void *v) 922 { 923 struct vop_readlink_args /* { 924 struct vnode *a_vp; 925 struct uio *a_uio; 926 kauth_cred_t a_cred; 927 } */ *ap = v; 928 struct vnode *vp = ap->a_vp; 929 struct inode *ip = VTOI(vp); 930 struct ufsmount *ump = ip->i_ump; 931 int isize; 932 933 isize = ext2fs_size(ip); 934 if (isize < ump->um_maxsymlinklen || 935 (ump->um_maxsymlinklen == 0 && ext2fs_nblock(ip) == 0)) { 936 uiomove(ip->i_din.e2fs_din->e2di_shortlink, isize, ap->a_uio); 937 return 0; 938 } 939 return UFS_BUFRD(vp, ap->a_uio, 0, ap->a_cred); 940 } 941 942 /* 943 * Advisory record locking support 944 */ 945 int 946 ext2fs_advlock(void *v) 947 { 948 struct vop_advlock_args /* { 949 struct vnode *a_vp; 950 void * a_id; 951 int a_op; 952 struct flock *a_fl; 953 int a_flags; 954 } */ *ap = v; 955 struct inode *ip = VTOI(ap->a_vp); 956 957 return lf_advlock(ap, &ip->i_lockf, ext2fs_size(ip)); 958 } 959 960 int 961 ext2fs_fsync(void *v) 962 { 963 struct vop_fsync_args /* { 964 struct vnode *a_vp; 965 kauth_cred_t a_cred; 966 int a_flags; 967 off_t offlo; 968 off_t offhi; 969 struct proc *a_p; 970 } */ *ap = v; 971 struct vnode *vp = ap->a_vp; 972 int wait; 973 int error; 974 975 wait = (ap->a_flags & FSYNC_WAIT) != 0; 976 977 if (vp->v_type == VBLK) 978 error = spec_fsync(v); 979 else 980 error = vflushbuf(vp, ap->a_flags); 981 if (error == 0 && (ap->a_flags & FSYNC_DATAONLY) == 0) 982 error = ext2fs_update(vp, NULL, NULL, wait ? UPDATE_WAIT : 0); 983 984 if (error == 0 && ap->a_flags & FSYNC_CACHE) { 985 int l = 0; 986 error = VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &l, FWRITE, 987 curlwp->l_cred); 988 } 989 990 return error; 991 } 992 993 /* 994 * Initialize the vnode associated with a new inode, handle aliased 995 * vnodes. 996 */ 997 int 998 ext2fs_vinit(struct mount *mntp, int (**specops)(void *), 999 int (**fifoops)(void *), struct vnode **vpp) 1000 { 1001 struct timeval tv; 1002 struct inode *ip; 1003 struct vnode *vp; 1004 1005 vp = *vpp; 1006 ip = VTOI(vp); 1007 switch(vp->v_type = IFTOVT(ip->i_e2fs_mode)) { 1008 case VCHR: 1009 case VBLK: 1010 vp->v_op = specops; 1011 spec_node_init(vp, fs2h32(ip->i_din.e2fs_din->e2di_rdev)); 1012 break; 1013 case VFIFO: 1014 vp->v_op = fifoops; 1015 break; 1016 case VNON: 1017 case VBAD: 1018 case VSOCK: 1019 case VLNK: 1020 case VDIR: 1021 case VREG: 1022 break; 1023 } 1024 if (ip->i_number == UFS_ROOTINO) 1025 vp->v_vflag |= VV_ROOT; 1026 /* 1027 * Initialize modrev times 1028 */ 1029 getmicrouptime(&tv); 1030 SETHIGH(ip->i_modrev, tv.tv_sec); 1031 SETLOW(ip->i_modrev, tv.tv_usec * 4294); 1032 *vpp = vp; 1033 return 0; 1034 } 1035 1036 /* 1037 * Allocate a new inode. 1038 */ 1039 int 1040 ext2fs_makeinode(int mode, struct vnode *dvp, struct vnode **vpp, 1041 struct componentname *cnp, int do_direnter) 1042 { 1043 struct inode *ip, *pdir; 1044 struct vnode *tvp; 1045 int error; 1046 struct ufs_lookup_results *ulr; 1047 1048 pdir = VTOI(dvp); 1049 1050 /* XXX should handle this material another way */ 1051 ulr = &pdir->i_crap; 1052 UFS_CHECK_CRAPCOUNTER(pdir); 1053 1054 *vpp = NULL; 1055 if ((mode & IFMT) == 0) 1056 mode |= IFREG; 1057 1058 if ((error = ext2fs_valloc(dvp, mode, cnp->cn_cred, &tvp)) != 0) { 1059 return error; 1060 } 1061 ip = VTOI(tvp); 1062 ip->i_uid = kauth_cred_geteuid(cnp->cn_cred); 1063 ip->i_e2fs_uid = ip->i_uid & 0xffff; 1064 ip->i_e2fs_gid = pdir->i_e2fs_gid; 1065 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 1066 ip->i_e2fs_uid_high = (ip->i_uid >> 16) & 0xffff; 1067 ip->i_e2fs_gid_high = pdir->i_e2fs_gid_high; 1068 } else { 1069 ip->i_e2fs_uid_high = 0; 1070 ip->i_e2fs_gid_high = 0; 1071 } 1072 ip->i_gid = ip->i_e2fs_gid | (ip->i_e2fs_gid_high << 16); 1073 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 1074 ip->i_e2fs_mode = mode; 1075 tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */ 1076 ip->i_e2fs_nlink = 1; 1077 1078 /* Authorize setting SGID if needed. */ 1079 if (ip->i_e2fs_mode & ISGID) { 1080 error = kauth_authorize_vnode(cnp->cn_cred, KAUTH_VNODE_WRITE_SECURITY, 1081 tvp, NULL, genfs_can_chmod(tvp->v_type, cnp->cn_cred, ip->i_uid, 1082 ip->i_gid, mode)); 1083 if (error) 1084 ip->i_e2fs_mode &= ~ISGID; 1085 } 1086 1087 /* Initialize extra_isize according to what is set in superblock */ 1088 if (EXT2F_HAS_ROCOMPAT_FEATURE(ip->i_e2fs, EXT2F_ROCOMPAT_EXTRA_ISIZE) 1089 && EXT2_DINODE_SIZE(ip->i_e2fs) > EXT2_REV0_DINODE_SIZE) { 1090 ip->i_din.e2fs_din->e2di_extra_isize = ip->i_e2fs->e2fs.e4fs_want_extra_isize; 1091 } 1092 1093 /* Set create time if possible */ 1094 if (EXT2_DINODE_FITS(ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs))) { 1095 struct timespec now; 1096 vfs_timestamp(&now); 1097 EXT2_DINODE_TIME_SET(&now, ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 1098 } 1099 1100 if (do_direnter) { 1101 /* 1102 * Make sure inode goes to disk before directory entry. 1103 */ 1104 if ((error = ext2fs_update(tvp, NULL, NULL, UPDATE_WAIT)) != 0) 1105 goto bad; 1106 error = ext2fs_direnter(ip, dvp, ulr, cnp); 1107 if (error != 0) 1108 goto bad; 1109 } 1110 1111 *vpp = tvp; 1112 return 0; 1113 1114 bad: 1115 /* 1116 * Write error occurred trying to update the inode 1117 * or the directory so must deallocate the inode. 1118 */ 1119 tvp->v_type = VNON; /* Stop explosion if VBLK */ 1120 ip->i_e2fs_nlink = 0; 1121 ip->i_flag |= IN_CHANGE; 1122 vput(tvp); 1123 return error; 1124 } 1125 1126 /* 1127 * Reclaim an inode so that it can be used for other purposes. 1128 */ 1129 int 1130 ext2fs_reclaim(void *v) 1131 { 1132 struct vop_reclaim_args /* { 1133 struct vnode *a_vp; 1134 } */ *ap = v; 1135 struct vnode *vp = ap->a_vp; 1136 struct inode *ip = VTOI(vp); 1137 int error; 1138 1139 /* 1140 * The inode must be freed and updated before being removed 1141 * from its hash chain. Other threads trying to gain a hold 1142 * or lock on the inode will be stalled. 1143 */ 1144 if (ip->i_omode == 1 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) 1145 ext2fs_vfree(vp, ip->i_number, ip->i_e2fs_mode); 1146 if ((error = ufs_reclaim(vp)) != 0) 1147 return error; 1148 if (ip->i_din.e2fs_din != NULL) 1149 kmem_free(ip->i_din.e2fs_din, EXT2_DINODE_SIZE(ip->i_e2fs)); 1150 genfs_node_destroy(vp); 1151 pool_put(&ext2fs_inode_pool, vp->v_data); 1152 vp->v_data = NULL; 1153 return 0; 1154 } 1155 1156 /* Global vfs data structures for ext2fs. */ 1157 int (**ext2fs_vnodeop_p)(void *); 1158 const struct vnodeopv_entry_desc ext2fs_vnodeop_entries[] = { 1159 { &vop_default_desc, vn_default_error }, 1160 { &vop_lookup_desc, ext2fs_lookup }, /* lookup */ 1161 { &vop_create_desc, ext2fs_create }, /* create */ 1162 { &vop_mknod_desc, ext2fs_mknod }, /* mknod */ 1163 { &vop_open_desc, ext2fs_open }, /* open */ 1164 { &vop_close_desc, ufs_close }, /* close */ 1165 { &vop_access_desc, ext2fs_access }, /* access */ 1166 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1167 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1168 { &vop_read_desc, ext2fs_read }, /* read */ 1169 { &vop_write_desc, ext2fs_write }, /* write */ 1170 { &vop_fallocate_desc, genfs_eopnotsupp }, /* fallocate */ 1171 { &vop_fdiscard_desc, genfs_eopnotsupp }, /* fdiscard */ 1172 { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ 1173 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1174 { &vop_poll_desc, ufs_poll }, /* poll */ 1175 { &vop_kqfilter_desc, genfs_kqfilter }, /* kqfilter */ 1176 { &vop_revoke_desc, ufs_revoke }, /* revoke */ 1177 { &vop_mmap_desc, ufs_mmap }, /* mmap */ 1178 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1179 { &vop_seek_desc, ufs_seek }, /* seek */ 1180 { &vop_remove_desc, ext2fs_remove }, /* remove */ 1181 { &vop_link_desc, ext2fs_link }, /* link */ 1182 { &vop_rename_desc, ext2fs_rename }, /* rename */ 1183 { &vop_mkdir_desc, ext2fs_mkdir }, /* mkdir */ 1184 { &vop_rmdir_desc, ext2fs_rmdir }, /* rmdir */ 1185 { &vop_symlink_desc, ext2fs_symlink }, /* symlink */ 1186 { &vop_readdir_desc, ext2fs_readdir }, /* readdir */ 1187 { &vop_readlink_desc, ext2fs_readlink }, /* readlink */ 1188 { &vop_abortop_desc, ufs_abortop }, /* abortop */ 1189 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1190 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1191 { &vop_lock_desc, ufs_lock }, /* lock */ 1192 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1193 { &vop_bmap_desc, ext2fs_bmap }, /* bmap */ 1194 { &vop_strategy_desc, ufs_strategy }, /* strategy */ 1195 { &vop_print_desc, ufs_print }, /* print */ 1196 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1197 { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ 1198 { &vop_advlock_desc, ext2fs_advlock }, /* advlock */ 1199 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1200 { &vop_getpages_desc, genfs_getpages }, /* getpages */ 1201 { &vop_putpages_desc, genfs_putpages }, /* putpages */ 1202 { &vop_getextattr_desc, ext2fs_getextattr }, /* getextattr */ 1203 { &vop_setextattr_desc, ext2fs_setextattr }, /* setextattr */ 1204 { &vop_listextattr_desc, ext2fs_listextattr }, /* listextattr */ 1205 { &vop_deleteextattr_desc, ext2fs_deleteextattr },/* deleteextattr */ 1206 { NULL, NULL } 1207 }; 1208 const struct vnodeopv_desc ext2fs_vnodeop_opv_desc = 1209 { &ext2fs_vnodeop_p, ext2fs_vnodeop_entries }; 1210 1211 int (**ext2fs_specop_p)(void *); 1212 const struct vnodeopv_entry_desc ext2fs_specop_entries[] = { 1213 { &vop_default_desc, vn_default_error }, 1214 { &vop_lookup_desc, spec_lookup }, /* lookup */ 1215 { &vop_create_desc, spec_create }, /* create */ 1216 { &vop_mknod_desc, spec_mknod }, /* mknod */ 1217 { &vop_open_desc, spec_open }, /* open */ 1218 { &vop_close_desc, ufsspec_close }, /* close */ 1219 { &vop_access_desc, ext2fs_access }, /* access */ 1220 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1221 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1222 { &vop_read_desc, ufsspec_read }, /* read */ 1223 { &vop_write_desc, ufsspec_write }, /* write */ 1224 { &vop_fallocate_desc, spec_fallocate }, /* fallocate */ 1225 { &vop_fdiscard_desc, spec_fdiscard }, /* fdiscard */ 1226 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ 1227 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1228 { &vop_poll_desc, spec_poll }, /* poll */ 1229 { &vop_kqfilter_desc, spec_kqfilter }, /* kqfilter */ 1230 { &vop_revoke_desc, spec_revoke }, /* revoke */ 1231 { &vop_mmap_desc, spec_mmap }, /* mmap */ 1232 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1233 { &vop_seek_desc, spec_seek }, /* seek */ 1234 { &vop_remove_desc, spec_remove }, /* remove */ 1235 { &vop_link_desc, spec_link }, /* link */ 1236 { &vop_rename_desc, spec_rename }, /* rename */ 1237 { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ 1238 { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ 1239 { &vop_symlink_desc, spec_symlink }, /* symlink */ 1240 { &vop_readdir_desc, spec_readdir }, /* readdir */ 1241 { &vop_readlink_desc, spec_readlink }, /* readlink */ 1242 { &vop_abortop_desc, spec_abortop }, /* abortop */ 1243 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1244 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1245 { &vop_lock_desc, ufs_lock }, /* lock */ 1246 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1247 { &vop_bmap_desc, spec_bmap }, /* bmap */ 1248 { &vop_strategy_desc, spec_strategy }, /* strategy */ 1249 { &vop_print_desc, ufs_print }, /* print */ 1250 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1251 { &vop_pathconf_desc, spec_pathconf }, /* pathconf */ 1252 { &vop_advlock_desc, spec_advlock }, /* advlock */ 1253 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1254 { &vop_getpages_desc, spec_getpages }, /* getpages */ 1255 { &vop_putpages_desc, spec_putpages }, /* putpages */ 1256 { &vop_getextattr_desc, ext2fs_getextattr }, /* getextattr */ 1257 { &vop_setextattr_desc, ext2fs_setextattr }, /* setextattr */ 1258 { &vop_listextattr_desc, ext2fs_listextattr }, /* listextattr */ 1259 { &vop_deleteextattr_desc, ext2fs_deleteextattr },/* deleteextattr */ 1260 { NULL, NULL } 1261 }; 1262 const struct vnodeopv_desc ext2fs_specop_opv_desc = 1263 { &ext2fs_specop_p, ext2fs_specop_entries }; 1264 1265 int (**ext2fs_fifoop_p)(void *); 1266 const struct vnodeopv_entry_desc ext2fs_fifoop_entries[] = { 1267 { &vop_default_desc, vn_default_error }, 1268 { &vop_lookup_desc, vn_fifo_bypass }, /* lookup */ 1269 { &vop_create_desc, vn_fifo_bypass }, /* create */ 1270 { &vop_mknod_desc, vn_fifo_bypass }, /* mknod */ 1271 { &vop_open_desc, vn_fifo_bypass }, /* open */ 1272 { &vop_close_desc, ufsfifo_close }, /* close */ 1273 { &vop_access_desc, ext2fs_access }, /* access */ 1274 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1275 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1276 { &vop_read_desc, ufsfifo_read }, /* read */ 1277 { &vop_write_desc, ufsfifo_write }, /* write */ 1278 { &vop_fallocate_desc, vn_fifo_bypass }, /* fallocate */ 1279 { &vop_fdiscard_desc, vn_fifo_bypass }, /* fdiscard */ 1280 { &vop_ioctl_desc, vn_fifo_bypass }, /* ioctl */ 1281 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1282 { &vop_poll_desc, vn_fifo_bypass }, /* poll */ 1283 { &vop_kqfilter_desc, vn_fifo_bypass }, /* kqfilter */ 1284 { &vop_revoke_desc, vn_fifo_bypass }, /* revoke */ 1285 { &vop_mmap_desc, vn_fifo_bypass }, /* mmap */ 1286 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1287 { &vop_seek_desc, vn_fifo_bypass }, /* seek */ 1288 { &vop_remove_desc, vn_fifo_bypass }, /* remove */ 1289 { &vop_link_desc, vn_fifo_bypass }, /* link */ 1290 { &vop_rename_desc, vn_fifo_bypass }, /* rename */ 1291 { &vop_mkdir_desc, vn_fifo_bypass }, /* mkdir */ 1292 { &vop_rmdir_desc, vn_fifo_bypass }, /* rmdir */ 1293 { &vop_symlink_desc, vn_fifo_bypass }, /* symlink */ 1294 { &vop_readdir_desc, vn_fifo_bypass }, /* readdir */ 1295 { &vop_readlink_desc, vn_fifo_bypass }, /* readlink */ 1296 { &vop_abortop_desc, vn_fifo_bypass }, /* abortop */ 1297 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1298 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1299 { &vop_lock_desc, ufs_lock }, /* lock */ 1300 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1301 { &vop_bmap_desc, vn_fifo_bypass }, /* bmap */ 1302 { &vop_strategy_desc, vn_fifo_bypass }, /* strategy */ 1303 { &vop_print_desc, ufs_print }, /* print */ 1304 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1305 { &vop_pathconf_desc, vn_fifo_bypass }, /* pathconf */ 1306 { &vop_advlock_desc, vn_fifo_bypass }, /* advlock */ 1307 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1308 { &vop_putpages_desc, vn_fifo_bypass }, /* putpages */ 1309 { &vop_getextattr_desc, ext2fs_getextattr }, /* getextattr */ 1310 { &vop_setextattr_desc, ext2fs_setextattr }, /* setextattr */ 1311 { &vop_listextattr_desc, ext2fs_listextattr }, /* listextattr */ 1312 { &vop_deleteextattr_desc, ext2fs_deleteextattr },/* deleteextattr */ 1313 { NULL, NULL } 1314 }; 1315 const struct vnodeopv_desc ext2fs_fifoop_opv_desc = 1316 { &ext2fs_fifoop_p, ext2fs_fifoop_entries }; 1317
Indexes created Fri Sep 26 08:10:20 GMT 2025