ext2fs_vnops.c revision 1.115.2.4
1 /* $NetBSD: ext2fs_vnops.c,v 1.115.2.4 2017/08/28 17:53:16 skrll 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 1.115.2.4 2017/08/28 17:53:16 skrll 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 static int ext2fs_makeinode(struct vattr *, struct vnode *, struct vnode **, 105 struct componentname *, int); 106 107 union _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 */ 128 int 129 ext2fs_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 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; 165 166 if ((error = ext2fs_makeinode(vap, ap->a_dvp, vpp, ap->a_cnp, 1)) != 0) 167 return error; 168 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 169 ip = VTOI(*vpp); 170 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 171 VOP_UNLOCK(*vpp); 172 return 0; 173 } 174 175 /* 176 * Open called. 177 * 178 * Just check the APPEND flag. 179 */ 180 /* ARGSUSED */ 181 int 182 ext2fs_open(void *v) 183 { 184 struct vop_open_args /* { 185 struct vnode *a_vp; 186 int a_mode; 187 kauth_cred_t a_cred; 188 } */ *ap = v; 189 190 /* 191 * Files marked append-only must be opened for appending. 192 */ 193 if ((VTOI(ap->a_vp)->i_e2fs_flags & EXT2_APPEND) && 194 (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE) 195 return EPERM; 196 return 0; 197 } 198 199 static int 200 ext2fs_check_possible(struct vnode *vp, struct inode *ip, mode_t mode) 201 { 202 203 /* 204 * Disallow write attempts on read-only file systems; 205 * unless the file is a socket, fifo, or a block or 206 * character device resident on the file system. 207 */ 208 if (mode & VWRITE) { 209 switch (vp->v_type) { 210 case VDIR: 211 case VLNK: 212 case VREG: 213 if (vp->v_mount->mnt_flag & MNT_RDONLY) 214 return EROFS; 215 break; 216 default: 217 break; 218 } 219 } 220 221 /* If immutable bit set, nobody gets to write it. */ 222 if ((mode & VWRITE) && (ip->i_e2fs_flags & EXT2_IMMUTABLE)) 223 return EPERM; 224 225 return 0; 226 } 227 228 static int 229 ext2fs_check_permitted(struct vnode *vp, struct inode *ip, mode_t mode, 230 kauth_cred_t cred) 231 { 232 233 return kauth_authorize_vnode(cred, KAUTH_ACCESS_ACTION(mode, vp->v_type, 234 ip->i_e2fs_mode & ALLPERMS), vp, NULL, genfs_can_access(vp->v_type, 235 ip->i_e2fs_mode & ALLPERMS, ip->i_uid, ip->i_gid, mode, cred)); 236 } 237 238 int 239 ext2fs_access(void *v) 240 { 241 struct vop_access_args /* { 242 struct vnode *a_vp; 243 int a_mode; 244 kauth_cred_t a_cred; 245 } */ *ap = v; 246 struct vnode *vp = ap->a_vp; 247 struct inode *ip = VTOI(vp); 248 mode_t mode = ap->a_mode; 249 int error; 250 251 error = ext2fs_check_possible(vp, ip, mode); 252 if (error) 253 return error; 254 255 error = ext2fs_check_permitted(vp, ip, mode, ap->a_cred); 256 257 return error; 258 } 259 260 /* ARGSUSED */ 261 int 262 ext2fs_getattr(void *v) 263 { 264 struct vop_getattr_args /* { 265 struct vnode *a_vp; 266 struct vattr *a_vap; 267 kauth_cred_t a_cred; 268 } */ *ap = v; 269 struct vnode *vp = ap->a_vp; 270 struct inode *ip = VTOI(vp); 271 struct vattr *vap = ap->a_vap; 272 273 EXT2FS_ITIMES(ip, NULL, NULL, NULL); 274 /* 275 * Copy from inode table 276 */ 277 vap->va_fsid = ip->i_dev; 278 vap->va_fileid = ip->i_number; 279 vap->va_mode = ip->i_e2fs_mode & ALLPERMS; 280 vap->va_nlink = ip->i_e2fs_nlink; 281 vap->va_uid = ip->i_uid; 282 vap->va_gid = ip->i_gid; 283 vap->va_rdev = (dev_t)fs2h32(ip->i_din.e2fs_din->e2di_rdev); 284 vap->va_size = vp->v_size; 285 EXT2_DINODE_TIME_GET(&vap->va_atime, ip->i_din.e2fs_din, e2di_atime, EXT2_DINODE_SIZE(ip->i_e2fs)); 286 EXT2_DINODE_TIME_GET(&vap->va_mtime, ip->i_din.e2fs_din, e2di_mtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 287 EXT2_DINODE_TIME_GET(&vap->va_ctime, ip->i_din.e2fs_din, e2di_ctime, EXT2_DINODE_SIZE(ip->i_e2fs)); 288 if (EXT2_DINODE_FITS(ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs))) { 289 EXT2_DINODE_TIME_GET(&vap->va_birthtime, ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 290 } 291 292 vap->va_flags = 0; 293 vap->va_flags |= (ip->i_e2fs_flags & EXT2_NODUMP) ? UF_NODUMP : 0; 294 #ifdef EXT2FS_SYSTEM_FLAGS 295 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? SF_IMMUTABLE : 0; 296 vap->va_flags |= (ip->i_e2fs_flags & EXT2_APPEND) ? SF_APPEND : 0; 297 #else 298 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? UF_IMMUTABLE : 0; 299 vap->va_flags |= (ip->i_e2fs_flags & EXT2_APPEND) ? UF_APPEND : 0; 300 #endif 301 302 vap->va_gen = ip->i_e2fs_gen; 303 /* this doesn't belong here */ 304 if (vp->v_type == VBLK) 305 vap->va_blocksize = BLKDEV_IOSIZE; 306 else if (vp->v_type == VCHR) 307 vap->va_blocksize = MAXBSIZE; 308 else 309 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; 310 vap->va_bytes = dbtob(ext2fs_nblock(ip)); 311 vap->va_type = vp->v_type; 312 vap->va_filerev = ip->i_modrev; 313 return 0; 314 } 315 316 /* 317 * Set attribute vnode op. called from several syscalls 318 */ 319 int 320 ext2fs_setattr(void *v) 321 { 322 struct vop_setattr_args /* { 323 struct vnode *a_vp; 324 struct vattr *a_vap; 325 kauth_cred_t a_cred; 326 } */ *ap = v; 327 struct vattr *vap = ap->a_vap; 328 struct vnode *vp = ap->a_vp; 329 struct inode *ip = VTOI(vp); 330 kauth_cred_t cred = ap->a_cred; 331 struct lwp *l = curlwp; 332 int error; 333 kauth_action_t action = KAUTH_VNODE_WRITE_FLAGS; 334 bool changing_sysflags = false; 335 336 /* 337 * Check for unsettable attributes. 338 */ 339 if ((vap->va_type != VNON) || (vap->va_nlink != (nlink_t)VNOVAL) || 340 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) || 341 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) || 342 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) { 343 return EINVAL; 344 } 345 if (vap->va_flags != VNOVAL) { 346 if (vp->v_mount->mnt_flag & MNT_RDONLY) 347 return EROFS; 348 349 /* 350 * Check if we're allowed to change the flags. 351 * If EXT2FS_SYSTEM_FLAGS is set, then the flags are treated 352 * as system flags, otherwise they're considered to be user 353 * flags. 354 */ 355 #ifdef EXT2FS_SYSTEM_FLAGS 356 /* Indicate we're changing system flags if we are. */ 357 if ((vap->va_flags & SF_APPEND) || 358 (vap->va_flags & SF_IMMUTABLE)) { 359 action |= KAUTH_VNODE_WRITE_SYSFLAGS; 360 changing_sysflags = true; 361 } 362 363 /* Indicate the node has system flags if it does. */ 364 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) { 365 action |= KAUTH_VNODE_HAS_SYSFLAGS; 366 } 367 #endif /* EXT2FS_SYSTEM_FLAGS */ 368 369 error = kauth_authorize_vnode(cred, action, vp, NULL, 370 genfs_can_chflags(cred, vp->v_type, ip->i_uid, 371 changing_sysflags)); 372 if (error) 373 return error; 374 375 ip->i_e2fs_flags &= ~(EXT2_APPEND | EXT2_IMMUTABLE | EXT2_NODUMP); 376 #ifdef EXT2FS_SYSTEM_FLAGS 377 ip->i_e2fs_flags |= 378 (vap->va_flags & SF_APPEND) ? EXT2_APPEND : 0 | 379 (vap->va_flags & SF_IMMUTABLE) ? EXT2_IMMUTABLE : 0; 380 #else 381 ip->i_e2fs_flags |= 382 (vap->va_flags & UF_APPEND) ? EXT2_APPEND : 0 | 383 (vap->va_flags & UF_IMMUTABLE) ? EXT2_IMMUTABLE : 0; 384 #endif 385 ip->i_e2fs_flags |= 386 (vap->va_flags & UF_NODUMP) ? EXT2_NODUMP : 0; 387 ip->i_flag |= IN_CHANGE; 388 if (vap->va_flags & (IMMUTABLE | APPEND)) 389 return 0; 390 } 391 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) 392 return EPERM; 393 /* 394 * Go through the fields and update iff not VNOVAL. 395 */ 396 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) { 397 if (vp->v_mount->mnt_flag & MNT_RDONLY) 398 return EROFS; 399 error = ext2fs_chown(vp, vap->va_uid, vap->va_gid, cred, l); 400 if (error) 401 return error; 402 } 403 if (vap->va_size != VNOVAL) { 404 /* 405 * Disallow write attempts on read-only file systems; 406 * unless the file is a socket, fifo, or a block or 407 * character device resident on the file system. 408 */ 409 switch (vp->v_type) { 410 case VDIR: 411 return EISDIR; 412 case VLNK: 413 case VREG: 414 if (vp->v_mount->mnt_flag & MNT_RDONLY) 415 return EROFS; 416 default: 417 break; 418 } 419 error = ext2fs_truncate(vp, vap->va_size, 0, cred); 420 if (error) 421 return error; 422 } 423 ip = VTOI(vp); 424 if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL || vap->va_birthtime.tv_sec != VNOVAL) { 425 if (vp->v_mount->mnt_flag & MNT_RDONLY) 426 return EROFS; 427 error = kauth_authorize_vnode(cred, KAUTH_VNODE_WRITE_TIMES, vp, 428 NULL, genfs_can_chtimes(vp, vap->va_vaflags, ip->i_uid, 429 cred)); 430 if (error) 431 return error; 432 if (vap->va_atime.tv_sec != VNOVAL) 433 if (!(vp->v_mount->mnt_flag & MNT_NOATIME)) 434 ip->i_flag |= IN_ACCESS; 435 if (vap->va_mtime.tv_sec != VNOVAL) { 436 ip->i_flag |= IN_CHANGE | IN_UPDATE; 437 if (vp->v_mount->mnt_flag & MNT_RELATIME) 438 ip->i_flag |= IN_ACCESS; 439 } 440 if (vap->va_birthtime.tv_sec != VNOVAL && 441 EXT2_DINODE_FITS(ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs))) { 442 443 EXT2_DINODE_TIME_SET(&vap->va_birthtime, ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 444 } 445 error = ext2fs_update(vp, &vap->va_atime, &vap->va_mtime, 446 UPDATE_WAIT); 447 if (error) 448 return error; 449 } 450 error = 0; 451 if (vap->va_mode != (mode_t)VNOVAL) { 452 if (vp->v_mount->mnt_flag & MNT_RDONLY) 453 return EROFS; 454 error = ext2fs_chmod(vp, (int)vap->va_mode, cred, l); 455 } 456 VN_KNOTE(vp, NOTE_ATTRIB); 457 return error; 458 } 459 460 /* 461 * Change the mode on a file. 462 * Inode must be locked before calling. 463 */ 464 static int 465 ext2fs_chmod(struct vnode *vp, int mode, kauth_cred_t cred, struct lwp *l) 466 { 467 struct inode *ip = VTOI(vp); 468 int error; 469 470 error = kauth_authorize_vnode(cred, KAUTH_VNODE_WRITE_SECURITY, vp, 471 NULL, genfs_can_chmod(vp->v_type, cred, ip->i_uid, ip->i_gid, 472 mode)); 473 if (error) 474 return error; 475 476 ip->i_e2fs_mode &= ~ALLPERMS; 477 ip->i_e2fs_mode |= (mode & ALLPERMS); 478 ip->i_flag |= IN_CHANGE; 479 return 0; 480 } 481 482 /* 483 * Perform chown operation on inode ip; 484 * inode must be locked prior to call. 485 */ 486 static int 487 ext2fs_chown(struct vnode *vp, uid_t uid, gid_t gid, kauth_cred_t cred, 488 struct lwp *l) 489 { 490 struct inode *ip = VTOI(vp); 491 uid_t ouid; 492 gid_t ogid; 493 int error; 494 495 if (uid == (uid_t)VNOVAL) 496 uid = ip->i_uid; 497 if (gid == (gid_t)VNOVAL) 498 gid = ip->i_gid; 499 500 error = kauth_authorize_vnode(cred, KAUTH_VNODE_CHANGE_OWNERSHIP, vp, 501 NULL, genfs_can_chown(cred, ip->i_uid, ip->i_gid, uid, gid)); 502 if (error) 503 return error; 504 505 ogid = ip->i_gid; 506 ouid = ip->i_uid; 507 508 ip->i_e2fs_gid = gid & 0xffff; 509 ip->i_e2fs_uid = uid & 0xffff; 510 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 511 ip->i_e2fs_gid_high = (gid >> 16) & 0xffff; 512 ip->i_e2fs_uid_high = (uid >> 16) & 0xffff; 513 } else { 514 ip->i_e2fs_gid_high = 0; 515 ip->i_e2fs_uid_high = 0; 516 } 517 if (ouid != uid || ogid != gid) { 518 ext2fs_set_inode_guid(ip); 519 ip->i_flag |= IN_CHANGE; 520 } 521 if (ouid != uid && (ip->i_e2fs_mode & ISUID) && 522 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SUID, 523 vp, NULL, EPERM) != 0) 524 ip->i_e2fs_mode &= ~ISUID; 525 if (ogid != gid && (ip->i_e2fs_mode & ISGID) && 526 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SGID, 527 vp, NULL, EPERM) != 0) 528 ip->i_e2fs_mode &= ~ISGID; 529 return 0; 530 } 531 532 int 533 ext2fs_remove(void *v) 534 { 535 struct vop_remove_v2_args /* { 536 struct vnode *a_dvp; 537 struct vnode *a_vp; 538 struct componentname *a_cnp; 539 } */ *ap = v; 540 struct inode *ip; 541 struct vnode *vp = ap->a_vp; 542 struct vnode *dvp = ap->a_dvp; 543 struct ufs_lookup_results *ulr; 544 int error; 545 546 /* XXX should handle this material another way */ 547 ulr = &VTOI(dvp)->i_crap; 548 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 549 550 ip = VTOI(vp); 551 if (vp->v_type == VDIR || 552 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) || 553 (VTOI(dvp)->i_e2fs_flags & EXT2_APPEND)) { 554 error = EPERM; 555 } else { 556 error = ext2fs_dirremove(dvp, ulr, ap->a_cnp); 557 if (error == 0) { 558 ip->i_e2fs_nlink--; 559 ip->i_flag |= IN_CHANGE; 560 } 561 } 562 563 VN_KNOTE(vp, NOTE_DELETE); 564 VN_KNOTE(dvp, NOTE_WRITE); 565 if (dvp == vp) 566 vrele(vp); 567 else 568 vput(vp); 569 return error; 570 } 571 572 /* 573 * ext2fs_link: create hard link. 574 */ 575 int 576 ext2fs_link(void *v) 577 { 578 struct vop_link_v2_args /* { 579 struct vnode *a_dvp; 580 struct vnode *a_vp; 581 struct componentname *a_cnp; 582 } */ *ap = v; 583 struct vnode *dvp = ap->a_dvp; 584 struct vnode *vp = ap->a_vp; 585 struct componentname *cnp = ap->a_cnp; 586 struct inode *ip; 587 int error; 588 struct ufs_lookup_results *ulr; 589 590 KASSERT(dvp != vp); 591 KASSERT(vp->v_type != VDIR); 592 KASSERT(dvp->v_mount == vp->v_mount); 593 594 /* XXX should handle this material another way */ 595 ulr = &VTOI(dvp)->i_crap; 596 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 597 598 error = vn_lock(vp, LK_EXCLUSIVE); 599 if (error) { 600 VOP_ABORTOP(dvp, cnp); 601 goto out2; 602 } 603 ip = VTOI(vp); 604 if ((nlink_t)ip->i_e2fs_nlink >= EXT2FS_LINK_MAX) { 605 VOP_ABORTOP(dvp, cnp); 606 error = EMLINK; 607 goto out1; 608 } 609 if (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) { 610 VOP_ABORTOP(dvp, cnp); 611 error = EPERM; 612 goto out1; 613 } 614 ip->i_e2fs_nlink++; 615 ip->i_flag |= IN_CHANGE; 616 error = ext2fs_update(vp, NULL, NULL, UPDATE_WAIT); 617 if (!error) 618 error = ext2fs_direnter(ip, dvp, ulr, cnp); 619 if (error) { 620 ip->i_e2fs_nlink--; 621 ip->i_flag |= IN_CHANGE; 622 } 623 out1: 624 VOP_UNLOCK(vp); 625 out2: 626 VN_KNOTE(vp, NOTE_LINK); 627 VN_KNOTE(dvp, NOTE_WRITE); 628 return error; 629 } 630 631 /* 632 * Mkdir system call 633 */ 634 int 635 ext2fs_mkdir(void *v) 636 { 637 struct vop_mkdir_v3_args /* { 638 struct vnode *a_dvp; 639 struct vnode **a_vpp; 640 struct componentname *a_cnp; 641 struct vattr *a_vap; 642 } */ *ap = v; 643 struct vnode *dvp = ap->a_dvp; 644 struct componentname *cnp = ap->a_cnp; 645 struct inode *ip, *dp = VTOI(dvp); 646 struct vnode *tvp; 647 struct ext2fs_dirtemplate dirtemplate; 648 int error; 649 struct ufs_lookup_results *ulr; 650 651 /* XXX should handle this material another way */ 652 ulr = &VTOI(dvp)->i_crap; 653 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 654 655 KASSERT(ap->a_vap->va_type == VDIR); 656 657 /* 658 * Acquire the inode, but don't sync/direnter it just yet 659 */ 660 error = ext2fs_makeinode(ap->a_vap, ap->a_dvp, &tvp, ap->a_cnp, 0); 661 if (error) 662 goto out; 663 664 /* the link count is going to be 2 when all is done */ 665 ip = VTOI(tvp); 666 ip->i_e2fs_nlink = 2; 667 668 /* 669 * Bump link count in parent directory 670 * to reflect work done below. Should 671 * be done before reference is created 672 * so reparation is possible if we crash. 673 */ 674 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 675 dp->i_e2fs_nlink++; 676 677 /* 678 * If we hit the link limit, for directories just set the nlink 679 * to special value 1, which means the link count is bigger 680 * than EXT2FS_LINK_MAX. 681 */ 682 if ((nlink_t)dp->i_e2fs_nlink >= EXT2FS_LINK_MAX) { 683 dp->i_e2fs_nlink = EXT2FS_LINK_INF; 684 685 /* set the feature flag DIR_NLINK if not set already */ 686 if (!EXT2F_HAS_ROCOMPAT_FEATURE(dp->i_e2fs, EXT2F_ROCOMPAT_DIR_NLINK)) { 687 dp->i_e2fs->e2fs.e2fs_features_rocompat |= EXT2F_ROCOMPAT_DIR_NLINK; 688 dp->i_e2fs->e2fs_fmod = 1; 689 } 690 } 691 692 dp->i_flag |= IN_CHANGE; 693 if ((error = ext2fs_update(dvp, NULL, NULL, UPDATE_DIROP)) != 0) 694 goto bad; 695 696 /* Initialize directory with "." and ".." from static template. */ 697 memset(&dirtemplate, 0, sizeof(dirtemplate)); 698 dirtemplate.dot_ino = h2fs32(ip->i_number); 699 dirtemplate.dot_reclen = h2fs16(12); 700 dirtemplate.dot_namlen = 1; 701 if (EXT2F_HAS_INCOMPAT_FEATURE(dp->i_e2fs, EXT2F_INCOMPAT_FTYPE)) { 702 dirtemplate.dot_type = EXT2_FT_DIR; 703 } 704 dirtemplate.dot_name[0] = '.'; 705 dirtemplate.dotdot_ino = h2fs32(dp->i_number); 706 dirtemplate.dotdot_reclen = h2fs16(VTOI(dvp)->i_e2fs->e2fs_bsize - 12); 707 dirtemplate.dotdot_namlen = 2; 708 if (EXT2F_HAS_INCOMPAT_FEATURE(dp->i_e2fs, EXT2F_INCOMPAT_FTYPE)) { 709 dirtemplate.dotdot_type = EXT2_FT_DIR; 710 } 711 dirtemplate.dotdot_name[0] = dirtemplate.dotdot_name[1] = '.'; 712 error = ufs_bufio(UIO_WRITE, tvp, (void *)&dirtemplate, 713 sizeof (dirtemplate), (off_t)0, IO_NODELOCKED|IO_SYNC, 714 cnp->cn_cred, (size_t *)0, NULL); 715 if (error) { 716 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 717 dp->i_e2fs_nlink--; 718 dp->i_flag |= IN_CHANGE; 719 goto bad; 720 } 721 if (VTOI(dvp)->i_e2fs->e2fs_bsize > dvp->v_mount->mnt_stat.f_bsize) 722 panic("ext2fs_mkdir: blksize"); /* XXX should grow with balloc() */ 723 else { 724 error = ext2fs_setsize(ip, VTOI(dvp)->i_e2fs->e2fs_bsize); 725 if (error) { 726 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 727 dp->i_e2fs_nlink--; 728 dp->i_flag |= IN_CHANGE; 729 goto bad; 730 } 731 ip->i_flag |= IN_CHANGE; 732 uvm_vnp_setsize(tvp, ext2fs_size(ip)); 733 } 734 735 /* Directory set up, now install its entry in the parent directory. */ 736 error = ext2fs_direnter(ip, dvp, ulr, cnp); 737 if (error != 0) { 738 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 739 dp->i_e2fs_nlink--; 740 dp->i_flag |= IN_CHANGE; 741 } 742 bad: 743 /* 744 * No need to do an explicit ext2fs_truncate here, vrele will do this 745 * for us because we set the link count to 0. 746 */ 747 if (error) { 748 ip->i_e2fs_nlink = 0; 749 ip->i_flag |= IN_CHANGE; 750 vput(tvp); 751 } else { 752 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK); 753 VOP_UNLOCK(tvp); 754 *ap->a_vpp = tvp; 755 } 756 out: 757 return error; 758 } 759 760 /* 761 * Rmdir system call. 762 */ 763 int 764 ext2fs_rmdir(void *v) 765 { 766 struct vop_rmdir_v2_args /* { 767 struct vnode *a_dvp; 768 struct vnode *a_vp; 769 struct componentname *a_cnp; 770 } */ *ap = v; 771 struct vnode *vp = ap->a_vp; 772 struct vnode *dvp = ap->a_dvp; 773 struct componentname *cnp = ap->a_cnp; 774 struct inode *ip, *dp; 775 int error; 776 struct ufs_lookup_results *ulr; 777 778 ip = VTOI(vp); 779 dp = VTOI(dvp); 780 781 /* XXX should handle this material another way */ 782 ulr = &dp->i_crap; 783 UFS_CHECK_CRAPCOUNTER(dp); 784 785 /* 786 * No rmdir "." please. 787 */ 788 if (dp == ip) { 789 vrele(vp); 790 return EINVAL; 791 } 792 /* 793 * Verify the directory is empty (and valid). 794 * (Rmdir ".." won't be valid since 795 * ".." will contain a reference to 796 * the current directory and thus be 797 * non-empty.) 798 */ 799 error = 0; 800 if ((ip->i_e2fs_nlink != 2 && ip->i_e2fs_nlink != EXT2FS_LINK_INF) || 801 !ext2fs_dirempty(ip, dp->i_number, cnp->cn_cred)) { 802 error = ENOTEMPTY; 803 goto out; 804 } 805 if ((dp->i_e2fs_flags & EXT2_APPEND) || 806 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND))) { 807 error = EPERM; 808 goto out; 809 } 810 /* 811 * Delete reference to directory before purging 812 * inode. If we crash in between, the directory 813 * will be reattached to lost+found, 814 */ 815 error = ext2fs_dirremove(dvp, ulr, cnp); 816 if (error != 0) 817 goto out; 818 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 819 dp->i_e2fs_nlink--; 820 dp->i_flag |= IN_CHANGE; 821 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK); 822 cache_purge(dvp); 823 /* 824 * Truncate inode. The only stuff left 825 * in the directory is "." and "..". The 826 * "." reference is inconsequential since 827 * we're quashing it. The ".." reference 828 * has already been adjusted above. We've 829 * removed the "." reference and the reference 830 * in the parent directory, but there may be 831 * other hard links so decrement by 2 and 832 * worry about them later. 833 */ 834 ip->i_e2fs_nlink -= 2; 835 error = ext2fs_truncate(vp, (off_t)0, IO_SYNC, cnp->cn_cred); 836 cache_purge(ITOV(ip)); 837 out: 838 VN_KNOTE(vp, NOTE_DELETE); 839 vput(vp); 840 return error; 841 } 842 843 /* 844 * symlink -- make a symbolic link 845 */ 846 int 847 ext2fs_symlink(void *v) 848 { 849 struct vop_symlink_v3_args /* { 850 struct vnode *a_dvp; 851 struct vnode **a_vpp; 852 struct componentname *a_cnp; 853 struct vattr *a_vap; 854 char *a_target; 855 } */ *ap = v; 856 struct vnode *vp, **vpp; 857 struct inode *ip; 858 int len, error; 859 860 vpp = ap->a_vpp; 861 KASSERT(ap->a_vap->va_type == VLNK); 862 error = ext2fs_makeinode(ap->a_vap, ap->a_dvp, vpp, ap->a_cnp, 1); 863 if (error) 864 return error; 865 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 866 vp = *vpp; 867 len = strlen(ap->a_target); 868 ip = VTOI(vp); 869 if (len < ip->i_ump->um_maxsymlinklen) { 870 memcpy(ip->i_din.e2fs_din->e2di_shortlink, ap->a_target, len); 871 error = ext2fs_setsize(ip, len); 872 if (error) 873 goto bad; 874 ip->i_flag |= IN_CHANGE | IN_UPDATE; 875 if (vp->v_mount->mnt_flag & MNT_RELATIME) 876 ip->i_flag |= IN_ACCESS; 877 uvm_vnp_setsize(vp, len); 878 } else 879 error = ufs_bufio(UIO_WRITE, vp, ap->a_target, len, (off_t)0, 880 IO_NODELOCKED, ap->a_cnp->cn_cred, (size_t *)0, NULL); 881 bad: 882 VOP_UNLOCK(vp); 883 if (error) 884 vrele(vp); 885 return error; 886 } 887 888 /* 889 * Return target name of a symbolic link 890 */ 891 int 892 ext2fs_readlink(void *v) 893 { 894 struct vop_readlink_args /* { 895 struct vnode *a_vp; 896 struct uio *a_uio; 897 kauth_cred_t a_cred; 898 } */ *ap = v; 899 struct vnode *vp = ap->a_vp; 900 struct inode *ip = VTOI(vp); 901 struct ufsmount *ump = ip->i_ump; 902 int isize; 903 904 isize = ext2fs_size(ip); 905 if (isize < ump->um_maxsymlinklen || 906 (ump->um_maxsymlinklen == 0 && ext2fs_nblock(ip) == 0)) { 907 uiomove(ip->i_din.e2fs_din->e2di_shortlink, isize, ap->a_uio); 908 return 0; 909 } 910 return UFS_BUFRD(vp, ap->a_uio, 0, ap->a_cred); 911 } 912 913 /* 914 * Advisory record locking support 915 */ 916 int 917 ext2fs_advlock(void *v) 918 { 919 struct vop_advlock_args /* { 920 struct vnode *a_vp; 921 void * a_id; 922 int a_op; 923 struct flock *a_fl; 924 int a_flags; 925 } */ *ap = v; 926 struct inode *ip = VTOI(ap->a_vp); 927 928 return lf_advlock(ap, &ip->i_lockf, ext2fs_size(ip)); 929 } 930 931 int 932 ext2fs_fsync(void *v) 933 { 934 struct vop_fsync_args /* { 935 struct vnode *a_vp; 936 kauth_cred_t a_cred; 937 int a_flags; 938 off_t offlo; 939 off_t offhi; 940 struct proc *a_p; 941 } */ *ap = v; 942 struct vnode *vp = ap->a_vp; 943 int wait; 944 int error; 945 946 wait = (ap->a_flags & FSYNC_WAIT) != 0; 947 948 if (vp->v_type == VBLK) 949 error = spec_fsync(v); 950 else 951 error = vflushbuf(vp, ap->a_flags); 952 if (error == 0 && (ap->a_flags & FSYNC_DATAONLY) == 0) 953 error = ext2fs_update(vp, NULL, NULL, wait ? UPDATE_WAIT : 0); 954 955 if (error == 0 && ap->a_flags & FSYNC_CACHE) { 956 int l = 0; 957 error = VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &l, FWRITE, 958 curlwp->l_cred); 959 } 960 961 return error; 962 } 963 964 /* 965 * Initialize the vnode associated with a new inode, handle aliased 966 * vnodes. 967 */ 968 int 969 ext2fs_vinit(struct mount *mntp, int (**specops)(void *), 970 int (**fifoops)(void *), struct vnode **vpp) 971 { 972 struct timeval tv; 973 struct inode *ip; 974 struct vnode *vp; 975 976 vp = *vpp; 977 ip = VTOI(vp); 978 switch(vp->v_type = IFTOVT(ip->i_e2fs_mode)) { 979 case VCHR: 980 case VBLK: 981 vp->v_op = specops; 982 spec_node_init(vp, fs2h32(ip->i_din.e2fs_din->e2di_rdev)); 983 break; 984 case VFIFO: 985 vp->v_op = fifoops; 986 break; 987 case VNON: 988 case VBAD: 989 case VSOCK: 990 case VLNK: 991 case VDIR: 992 case VREG: 993 break; 994 } 995 if (ip->i_number == UFS_ROOTINO) 996 vp->v_vflag |= VV_ROOT; 997 /* 998 * Initialize modrev times 999 */ 1000 getmicrouptime(&tv); 1001 SETHIGH(ip->i_modrev, tv.tv_sec); 1002 SETLOW(ip->i_modrev, tv.tv_usec * 4294); 1003 *vpp = vp; 1004 return 0; 1005 } 1006 1007 /* 1008 * Allocate a new inode. 1009 */ 1010 static int 1011 ext2fs_makeinode(struct vattr *vap, struct vnode *dvp, struct vnode **vpp, 1012 struct componentname *cnp, int do_direnter) 1013 { 1014 struct inode *ip, *pdir; 1015 struct vnode *tvp; 1016 int error; 1017 struct ufs_lookup_results *ulr; 1018 1019 pdir = VTOI(dvp); 1020 1021 /* XXX should handle this material another way */ 1022 ulr = &pdir->i_crap; 1023 UFS_CHECK_CRAPCOUNTER(pdir); 1024 1025 *vpp = NULL; 1026 1027 error = vcache_new(dvp->v_mount, dvp, vap, cnp->cn_cred, &tvp); 1028 if (error) 1029 return error; 1030 error = vn_lock(tvp, LK_EXCLUSIVE); 1031 if (error) { 1032 vrele(tvp); 1033 return error; 1034 } 1035 ip = VTOI(tvp); 1036 if (do_direnter) { 1037 /* 1038 * Make sure inode goes to disk before directory entry. 1039 */ 1040 if ((error = ext2fs_update(tvp, NULL, NULL, UPDATE_WAIT)) != 0) 1041 goto bad; 1042 error = ext2fs_direnter(ip, dvp, ulr, cnp); 1043 if (error != 0) 1044 goto bad; 1045 } 1046 1047 *vpp = tvp; 1048 return 0; 1049 1050 bad: 1051 /* 1052 * Write error occurred trying to update the inode 1053 * or the directory so must deallocate the inode. 1054 */ 1055 ip->i_e2fs_nlink = 0; 1056 ip->i_flag |= IN_CHANGE; 1057 vput(tvp); 1058 return error; 1059 } 1060 1061 /* 1062 * Reclaim an inode so that it can be used for other purposes. 1063 */ 1064 int 1065 ext2fs_reclaim(void *v) 1066 { 1067 struct vop_reclaim_v2_args /* { 1068 struct vnode *a_vp; 1069 } */ *ap = v; 1070 struct vnode *vp = ap->a_vp; 1071 struct inode *ip = VTOI(vp); 1072 int error; 1073 1074 VOP_UNLOCK(vp); 1075 1076 /* 1077 * The inode must be freed and updated before being removed 1078 * from its hash chain. Other threads trying to gain a hold 1079 * or lock on the inode will be stalled. 1080 */ 1081 if (ip->i_omode == 1 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) 1082 ext2fs_vfree(vp, ip->i_number, ip->i_e2fs_mode); 1083 if ((error = ufs_reclaim(vp)) != 0) 1084 return error; 1085 if (ip->i_din.e2fs_din != NULL) 1086 kmem_free(ip->i_din.e2fs_din, EXT2_DINODE_SIZE(ip->i_e2fs)); 1087 genfs_node_destroy(vp); 1088 pool_put(&ext2fs_inode_pool, vp->v_data); 1089 vp->v_data = NULL; 1090 return 0; 1091 } 1092 1093 /* Global vfs data structures for ext2fs. */ 1094 int (**ext2fs_vnodeop_p)(void *); 1095 const struct vnodeopv_entry_desc ext2fs_vnodeop_entries[] = { 1096 { &vop_default_desc, vn_default_error }, 1097 { &vop_lookup_desc, ext2fs_lookup }, /* lookup */ 1098 { &vop_create_desc, ext2fs_create }, /* create */ 1099 { &vop_mknod_desc, ext2fs_mknod }, /* mknod */ 1100 { &vop_open_desc, ext2fs_open }, /* open */ 1101 { &vop_close_desc, ufs_close }, /* close */ 1102 { &vop_access_desc, ext2fs_access }, /* access */ 1103 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1104 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1105 { &vop_read_desc, ext2fs_read }, /* read */ 1106 { &vop_write_desc, ext2fs_write }, /* write */ 1107 { &vop_fallocate_desc, genfs_eopnotsupp }, /* fallocate */ 1108 { &vop_fdiscard_desc, genfs_eopnotsupp }, /* fdiscard */ 1109 { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ 1110 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1111 { &vop_poll_desc, ufs_poll }, /* poll */ 1112 { &vop_kqfilter_desc, genfs_kqfilter }, /* kqfilter */ 1113 { &vop_revoke_desc, ufs_revoke }, /* revoke */ 1114 { &vop_mmap_desc, ufs_mmap }, /* mmap */ 1115 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1116 { &vop_seek_desc, ufs_seek }, /* seek */ 1117 { &vop_remove_desc, ext2fs_remove }, /* remove */ 1118 { &vop_link_desc, ext2fs_link }, /* link */ 1119 { &vop_rename_desc, ext2fs_rename }, /* rename */ 1120 { &vop_mkdir_desc, ext2fs_mkdir }, /* mkdir */ 1121 { &vop_rmdir_desc, ext2fs_rmdir }, /* rmdir */ 1122 { &vop_symlink_desc, ext2fs_symlink }, /* symlink */ 1123 { &vop_readdir_desc, ext2fs_readdir }, /* readdir */ 1124 { &vop_readlink_desc, ext2fs_readlink }, /* readlink */ 1125 { &vop_abortop_desc, ufs_abortop }, /* abortop */ 1126 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1127 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1128 { &vop_lock_desc, ufs_lock }, /* lock */ 1129 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1130 { &vop_bmap_desc, ext2fs_bmap }, /* bmap */ 1131 { &vop_strategy_desc, ufs_strategy }, /* strategy */ 1132 { &vop_print_desc, ufs_print }, /* print */ 1133 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1134 { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ 1135 { &vop_advlock_desc, ext2fs_advlock }, /* advlock */ 1136 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1137 { &vop_getpages_desc, genfs_getpages }, /* getpages */ 1138 { &vop_putpages_desc, genfs_putpages }, /* putpages */ 1139 { &vop_getextattr_desc, ext2fs_getextattr }, /* getextattr */ 1140 { &vop_setextattr_desc, ext2fs_setextattr }, /* setextattr */ 1141 { &vop_listextattr_desc, ext2fs_listextattr }, /* listextattr */ 1142 { &vop_deleteextattr_desc, ext2fs_deleteextattr },/* deleteextattr */ 1143 { NULL, NULL } 1144 }; 1145 const struct vnodeopv_desc ext2fs_vnodeop_opv_desc = 1146 { &ext2fs_vnodeop_p, ext2fs_vnodeop_entries }; 1147 1148 int (**ext2fs_specop_p)(void *); 1149 const struct vnodeopv_entry_desc ext2fs_specop_entries[] = { 1150 { &vop_default_desc, vn_default_error }, 1151 { &vop_lookup_desc, spec_lookup }, /* lookup */ 1152 { &vop_create_desc, spec_create }, /* create */ 1153 { &vop_mknod_desc, spec_mknod }, /* mknod */ 1154 { &vop_open_desc, spec_open }, /* open */ 1155 { &vop_close_desc, ufsspec_close }, /* close */ 1156 { &vop_access_desc, ext2fs_access }, /* access */ 1157 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1158 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1159 { &vop_read_desc, ufsspec_read }, /* read */ 1160 { &vop_write_desc, ufsspec_write }, /* write */ 1161 { &vop_fallocate_desc, spec_fallocate }, /* fallocate */ 1162 { &vop_fdiscard_desc, spec_fdiscard }, /* fdiscard */ 1163 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ 1164 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1165 { &vop_poll_desc, spec_poll }, /* poll */ 1166 { &vop_kqfilter_desc, spec_kqfilter }, /* kqfilter */ 1167 { &vop_revoke_desc, spec_revoke }, /* revoke */ 1168 { &vop_mmap_desc, spec_mmap }, /* mmap */ 1169 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1170 { &vop_seek_desc, spec_seek }, /* seek */ 1171 { &vop_remove_desc, spec_remove }, /* remove */ 1172 { &vop_link_desc, spec_link }, /* link */ 1173 { &vop_rename_desc, spec_rename }, /* rename */ 1174 { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ 1175 { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ 1176 { &vop_symlink_desc, spec_symlink }, /* symlink */ 1177 { &vop_readdir_desc, spec_readdir }, /* readdir */ 1178 { &vop_readlink_desc, spec_readlink }, /* readlink */ 1179 { &vop_abortop_desc, spec_abortop }, /* abortop */ 1180 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1181 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1182 { &vop_lock_desc, ufs_lock }, /* lock */ 1183 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1184 { &vop_bmap_desc, spec_bmap }, /* bmap */ 1185 { &vop_strategy_desc, spec_strategy }, /* strategy */ 1186 { &vop_print_desc, ufs_print }, /* print */ 1187 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1188 { &vop_pathconf_desc, spec_pathconf }, /* pathconf */ 1189 { &vop_advlock_desc, spec_advlock }, /* advlock */ 1190 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1191 { &vop_getpages_desc, spec_getpages }, /* getpages */ 1192 { &vop_putpages_desc, spec_putpages }, /* putpages */ 1193 { &vop_getextattr_desc, ext2fs_getextattr }, /* getextattr */ 1194 { &vop_setextattr_desc, ext2fs_setextattr }, /* setextattr */ 1195 { &vop_listextattr_desc, ext2fs_listextattr }, /* listextattr */ 1196 { &vop_deleteextattr_desc, ext2fs_deleteextattr },/* deleteextattr */ 1197 { NULL, NULL } 1198 }; 1199 const struct vnodeopv_desc ext2fs_specop_opv_desc = 1200 { &ext2fs_specop_p, ext2fs_specop_entries }; 1201 1202 int (**ext2fs_fifoop_p)(void *); 1203 const struct vnodeopv_entry_desc ext2fs_fifoop_entries[] = { 1204 { &vop_default_desc, vn_default_error }, 1205 { &vop_lookup_desc, vn_fifo_bypass }, /* lookup */ 1206 { &vop_create_desc, vn_fifo_bypass }, /* create */ 1207 { &vop_mknod_desc, vn_fifo_bypass }, /* mknod */ 1208 { &vop_open_desc, vn_fifo_bypass }, /* open */ 1209 { &vop_close_desc, ufsfifo_close }, /* close */ 1210 { &vop_access_desc, ext2fs_access }, /* access */ 1211 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1212 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1213 { &vop_read_desc, ufsfifo_read }, /* read */ 1214 { &vop_write_desc, ufsfifo_write }, /* write */ 1215 { &vop_fallocate_desc, vn_fifo_bypass }, /* fallocate */ 1216 { &vop_fdiscard_desc, vn_fifo_bypass }, /* fdiscard */ 1217 { &vop_ioctl_desc, vn_fifo_bypass }, /* ioctl */ 1218 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1219 { &vop_poll_desc, vn_fifo_bypass }, /* poll */ 1220 { &vop_kqfilter_desc, vn_fifo_bypass }, /* kqfilter */ 1221 { &vop_revoke_desc, vn_fifo_bypass }, /* revoke */ 1222 { &vop_mmap_desc, vn_fifo_bypass }, /* mmap */ 1223 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1224 { &vop_seek_desc, vn_fifo_bypass }, /* seek */ 1225 { &vop_remove_desc, vn_fifo_bypass }, /* remove */ 1226 { &vop_link_desc, vn_fifo_bypass }, /* link */ 1227 { &vop_rename_desc, vn_fifo_bypass }, /* rename */ 1228 { &vop_mkdir_desc, vn_fifo_bypass }, /* mkdir */ 1229 { &vop_rmdir_desc, vn_fifo_bypass }, /* rmdir */ 1230 { &vop_symlink_desc, vn_fifo_bypass }, /* symlink */ 1231 { &vop_readdir_desc, vn_fifo_bypass }, /* readdir */ 1232 { &vop_readlink_desc, vn_fifo_bypass }, /* readlink */ 1233 { &vop_abortop_desc, vn_fifo_bypass }, /* abortop */ 1234 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1235 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1236 { &vop_lock_desc, ufs_lock }, /* lock */ 1237 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1238 { &vop_bmap_desc, vn_fifo_bypass }, /* bmap */ 1239 { &vop_strategy_desc, vn_fifo_bypass }, /* strategy */ 1240 { &vop_print_desc, ufs_print }, /* print */ 1241 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1242 { &vop_pathconf_desc, vn_fifo_bypass }, /* pathconf */ 1243 { &vop_advlock_desc, vn_fifo_bypass }, /* advlock */ 1244 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1245 { &vop_putpages_desc, vn_fifo_bypass }, /* putpages */ 1246 { &vop_getextattr_desc, ext2fs_getextattr }, /* getextattr */ 1247 { &vop_setextattr_desc, ext2fs_setextattr }, /* setextattr */ 1248 { &vop_listextattr_desc, ext2fs_listextattr }, /* listextattr */ 1249 { &vop_deleteextattr_desc, ext2fs_deleteextattr },/* deleteextattr */ 1250 { NULL, NULL } 1251 }; 1252 const struct vnodeopv_desc ext2fs_fifoop_opv_desc = 1253 { &ext2fs_fifoop_p, ext2fs_fifoop_entries }; 1254
Indexes created Mon Oct 20 11:09:49 GMT 2025