ext2fs_vnops.c revision 1.132
1 /* $NetBSD: ext2fs_vnops.c,v 1.132 2020/05/16 18:31:53 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * (c) UNIX System Laboratories, Inc. 7 * All or some portions of this file are derived from material licensed 8 * to the University of California by American Telephone and Telegraph 9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 10 * the permission of UNIX System Laboratories, Inc. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)ufs_vnops.c 8.14 (Berkeley) 10/26/94 37 * Modified for ext2fs by Manuel Bouyer. 38 */ 39 40 /* 41 * Copyright (c) 1997 Manuel Bouyer. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 53 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 54 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 55 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 56 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 57 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 61 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 * 63 * @(#)ufs_vnops.c 8.14 (Berkeley) 10/26/94 64 * Modified for ext2fs by Manuel Bouyer. 65 */ 66 67 #include <sys/cdefs.h> 68 __KERNEL_RCSID(0, "$NetBSD: ext2fs_vnops.c,v 1.132 2020/05/16 18:31:53 christos Exp $"); 69 70 #include <sys/param.h> 71 #include <sys/systm.h> 72 #include <sys/resourcevar.h> 73 #include <sys/kernel.h> 74 #include <sys/file.h> 75 #include <sys/stat.h> 76 #include <sys/buf.h> 77 #include <sys/proc.h> 78 #include <sys/mount.h> 79 #include <sys/namei.h> 80 #include <sys/vnode.h> 81 #include <sys/lockf.h> 82 #include <sys/pool.h> 83 #include <sys/signalvar.h> 84 #include <sys/kauth.h> 85 86 #include <miscfs/fifofs/fifo.h> 87 #include <miscfs/genfs/genfs.h> 88 #include <miscfs/specfs/specdev.h> 89 90 #include <ufs/ufs/inode.h> 91 #include <ufs/ufs/ufs_extern.h> 92 #include <ufs/ufs/ufsmount.h> 93 94 #include <ufs/ext2fs/ext2fs.h> 95 #include <ufs/ext2fs/ext2fs_extern.h> 96 #include <ufs/ext2fs/ext2fs_dir.h> 97 #include <ufs/ext2fs/ext2fs_xattr.h> 98 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, accmode_t accmode, 230 kauth_cred_t cred) 231 { 232 233 return kauth_authorize_vnode(cred, KAUTH_ACCESS_ACTION(accmode, 234 vp->v_type, ip->i_e2fs_mode & ALLPERMS), vp, NULL, 235 genfs_can_access(vp, cred, ip->i_uid, ip->i_gid, 236 ip->i_e2fs_mode & ALLPERMS, NULL, accmode)); 237 } 238 239 int 240 ext2fs_access(void *v) 241 { 242 struct vop_access_args /* { 243 struct vnode *a_vp; 244 accmode_t a_accmode; 245 kauth_cred_t a_cred; 246 } */ *ap = v; 247 struct vnode *vp = ap->a_vp; 248 struct inode *ip = VTOI(vp); 249 accmode_t mode = ap->a_accmode; 250 int error; 251 252 error = ext2fs_check_possible(vp, ip, mode); 253 if (error) 254 return error; 255 256 error = ext2fs_check_permitted(vp, ip, mode, ap->a_cred); 257 258 return error; 259 } 260 261 /* ARGSUSED */ 262 int 263 ext2fs_getattr(void *v) 264 { 265 struct vop_getattr_args /* { 266 struct vnode *a_vp; 267 struct vattr *a_vap; 268 kauth_cred_t a_cred; 269 } */ *ap = v; 270 struct vnode *vp = ap->a_vp; 271 struct inode *ip = VTOI(vp); 272 struct vattr *vap = ap->a_vap; 273 274 EXT2FS_ITIMES(ip, NULL, NULL, NULL); 275 /* 276 * Copy from inode table 277 */ 278 vap->va_fsid = ip->i_dev; 279 vap->va_fileid = ip->i_number; 280 vap->va_mode = ip->i_e2fs_mode & ALLPERMS; 281 vap->va_nlink = ip->i_e2fs_nlink; 282 vap->va_uid = ip->i_uid; 283 vap->va_gid = ip->i_gid; 284 vap->va_rdev = (dev_t)fs2h32(ip->i_din.e2fs_din->e2di_rdev); 285 vap->va_size = vp->v_size; 286 EXT2_DINODE_TIME_GET(&vap->va_atime, ip->i_din.e2fs_din, e2di_atime, EXT2_DINODE_SIZE(ip->i_e2fs)); 287 EXT2_DINODE_TIME_GET(&vap->va_mtime, ip->i_din.e2fs_din, e2di_mtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 288 EXT2_DINODE_TIME_GET(&vap->va_ctime, ip->i_din.e2fs_din, e2di_ctime, EXT2_DINODE_SIZE(ip->i_e2fs)); 289 if (EXT2_DINODE_FITS(ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs))) { 290 EXT2_DINODE_TIME_GET(&vap->va_birthtime, ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 291 } 292 293 vap->va_flags = 0; 294 vap->va_flags |= (ip->i_e2fs_flags & EXT2_NODUMP) ? UF_NODUMP : 0; 295 #ifdef EXT2FS_SYSTEM_FLAGS 296 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? SF_IMMUTABLE : 0; 297 vap->va_flags |= (ip->i_e2fs_flags & EXT2_APPEND) ? SF_APPEND : 0; 298 #else 299 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? UF_IMMUTABLE : 0; 300 vap->va_flags |= (ip->i_e2fs_flags & EXT2_APPEND) ? UF_APPEND : 0; 301 #endif 302 303 vap->va_gen = ip->i_e2fs_gen; 304 /* this doesn't belong here */ 305 if (vp->v_type == VBLK) 306 vap->va_blocksize = BLKDEV_IOSIZE; 307 else if (vp->v_type == VCHR) 308 vap->va_blocksize = MAXBSIZE; 309 else 310 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; 311 vap->va_bytes = dbtob(ext2fs_nblock(ip)); 312 vap->va_type = vp->v_type; 313 vap->va_filerev = ip->i_modrev; 314 return 0; 315 } 316 317 /* 318 * Set attribute vnode op. called from several syscalls 319 */ 320 int 321 ext2fs_setattr(void *v) 322 { 323 struct vop_setattr_args /* { 324 struct vnode *a_vp; 325 struct vattr *a_vap; 326 kauth_cred_t a_cred; 327 } */ *ap = v; 328 struct vattr *vap = ap->a_vap; 329 struct vnode *vp = ap->a_vp; 330 struct inode *ip = VTOI(vp); 331 kauth_cred_t cred = ap->a_cred; 332 struct lwp *l = curlwp; 333 int error; 334 kauth_action_t action = KAUTH_VNODE_WRITE_FLAGS; 335 bool changing_sysflags = false; 336 337 /* 338 * Check for unsettable attributes. 339 */ 340 if ((vap->va_type != VNON) || (vap->va_nlink != (nlink_t)VNOVAL) || 341 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) || 342 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) || 343 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) { 344 return EINVAL; 345 } 346 if (vap->va_flags != VNOVAL) { 347 if (vp->v_mount->mnt_flag & MNT_RDONLY) 348 return EROFS; 349 350 /* 351 * Check if we're allowed to change the flags. 352 * If EXT2FS_SYSTEM_FLAGS is set, then the flags are treated 353 * as system flags, otherwise they're considered to be user 354 * flags. 355 */ 356 #ifdef EXT2FS_SYSTEM_FLAGS 357 /* Indicate we're changing system flags if we are. */ 358 if ((vap->va_flags & SF_APPEND) || 359 (vap->va_flags & SF_IMMUTABLE)) { 360 action |= KAUTH_VNODE_WRITE_SYSFLAGS; 361 changing_sysflags = true; 362 } 363 364 /* Indicate the node has system flags if it does. */ 365 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) { 366 action |= KAUTH_VNODE_HAS_SYSFLAGS; 367 } 368 #endif /* EXT2FS_SYSTEM_FLAGS */ 369 370 error = kauth_authorize_vnode(cred, action, vp, NULL, 371 genfs_can_chflags(vp, cred, ip->i_uid, 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, cred, ip->i_uid, 429 vap->va_vaflags)); 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, cred, ip->i_uid, ip->i_gid, mode)); 472 if (error) 473 return error; 474 475 ip->i_e2fs_mode &= ~ALLPERMS; 476 ip->i_e2fs_mode |= (mode & ALLPERMS); 477 ip->i_flag |= IN_CHANGE; 478 return 0; 479 } 480 481 /* 482 * Perform chown operation on inode ip; 483 * inode must be locked prior to call. 484 */ 485 static int 486 ext2fs_chown(struct vnode *vp, uid_t uid, gid_t gid, kauth_cred_t cred, 487 struct lwp *l) 488 { 489 struct inode *ip = VTOI(vp); 490 uid_t ouid; 491 gid_t ogid; 492 int error; 493 494 if (uid == (uid_t)VNOVAL) 495 uid = ip->i_uid; 496 if (gid == (gid_t)VNOVAL) 497 gid = ip->i_gid; 498 499 error = kauth_authorize_vnode(cred, KAUTH_VNODE_CHANGE_OWNERSHIP, vp, 500 NULL, genfs_can_chown(vp, cred, ip->i_uid, ip->i_gid, uid, gid)); 501 if (error) 502 return error; 503 504 ogid = ip->i_gid; 505 ouid = ip->i_uid; 506 507 ip->i_e2fs_gid = gid & 0xffff; 508 ip->i_e2fs_uid = uid & 0xffff; 509 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 510 ip->i_e2fs_gid_high = (gid >> 16) & 0xffff; 511 ip->i_e2fs_uid_high = (uid >> 16) & 0xffff; 512 } else { 513 ip->i_e2fs_gid_high = 0; 514 ip->i_e2fs_uid_high = 0; 515 } 516 if (ouid != uid || ogid != gid) { 517 ext2fs_set_inode_guid(ip); 518 ip->i_flag |= IN_CHANGE; 519 } 520 if (ouid != uid && (ip->i_e2fs_mode & ISUID) && 521 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SUID, 522 vp, NULL, EPERM) != 0) 523 ip->i_e2fs_mode &= ~ISUID; 524 if (ogid != gid && (ip->i_e2fs_mode & ISGID) && 525 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SGID, 526 vp, NULL, EPERM) != 0) 527 ip->i_e2fs_mode &= ~ISGID; 528 return 0; 529 } 530 531 int 532 ext2fs_remove(void *v) 533 { 534 struct vop_remove_v2_args /* { 535 struct vnode *a_dvp; 536 struct vnode *a_vp; 537 struct componentname *a_cnp; 538 } */ *ap = v; 539 struct inode *ip; 540 struct vnode *vp = ap->a_vp; 541 struct vnode *dvp = ap->a_dvp; 542 struct ufs_lookup_results *ulr; 543 int error; 544 545 /* XXX should handle this material another way */ 546 ulr = &VTOI(dvp)->i_crap; 547 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 548 549 ip = VTOI(vp); 550 if (vp->v_type == VDIR || 551 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) || 552 (VTOI(dvp)->i_e2fs_flags & EXT2_APPEND)) { 553 error = EPERM; 554 } else { 555 error = ext2fs_dirremove(dvp, ulr, ap->a_cnp); 556 if (error == 0) { 557 ip->i_e2fs_nlink--; 558 ip->i_flag |= IN_CHANGE; 559 } 560 } 561 562 VN_KNOTE(vp, NOTE_DELETE); 563 VN_KNOTE(dvp, NOTE_WRITE); 564 if (dvp == vp) 565 vrele(vp); 566 else 567 vput(vp); 568 return error; 569 } 570 571 /* 572 * ext2fs_link: create hard link. 573 */ 574 int 575 ext2fs_link(void *v) 576 { 577 struct vop_link_v2_args /* { 578 struct vnode *a_dvp; 579 struct vnode *a_vp; 580 struct componentname *a_cnp; 581 } */ *ap = v; 582 struct vnode *dvp = ap->a_dvp; 583 struct vnode *vp = ap->a_vp; 584 struct componentname *cnp = ap->a_cnp; 585 struct inode *ip; 586 int error; 587 struct ufs_lookup_results *ulr; 588 589 KASSERT(dvp != vp); 590 KASSERT(vp->v_type != VDIR); 591 KASSERT(dvp->v_mount == vp->v_mount); 592 593 /* XXX should handle this material another way */ 594 ulr = &VTOI(dvp)->i_crap; 595 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 596 597 error = vn_lock(vp, LK_EXCLUSIVE); 598 if (error) { 599 VOP_ABORTOP(dvp, cnp); 600 goto out2; 601 } 602 ip = VTOI(vp); 603 if ((nlink_t)ip->i_e2fs_nlink >= EXT2FS_LINK_MAX) { 604 VOP_ABORTOP(dvp, cnp); 605 error = EMLINK; 606 goto out1; 607 } 608 if (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) { 609 VOP_ABORTOP(dvp, cnp); 610 error = EPERM; 611 goto out1; 612 } 613 ip->i_e2fs_nlink++; 614 ip->i_flag |= IN_CHANGE; 615 error = ext2fs_update(vp, NULL, NULL, UPDATE_WAIT); 616 if (!error) 617 error = ext2fs_direnter(ip, dvp, ulr, cnp); 618 if (error) { 619 ip->i_e2fs_nlink--; 620 ip->i_flag |= IN_CHANGE; 621 } 622 out1: 623 VOP_UNLOCK(vp); 624 out2: 625 VN_KNOTE(vp, NOTE_LINK); 626 VN_KNOTE(dvp, NOTE_WRITE); 627 return error; 628 } 629 630 /* 631 * Mkdir system call 632 */ 633 int 634 ext2fs_mkdir(void *v) 635 { 636 struct vop_mkdir_v3_args /* { 637 struct vnode *a_dvp; 638 struct vnode **a_vpp; 639 struct componentname *a_cnp; 640 struct vattr *a_vap; 641 } */ *ap = v; 642 struct vnode *dvp = ap->a_dvp; 643 struct componentname *cnp = ap->a_cnp; 644 struct inode *ip, *dp = VTOI(dvp); 645 struct vnode *tvp; 646 struct ext2fs_dirtemplate dirtemplate; 647 int error; 648 struct ufs_lookup_results *ulr; 649 650 /* XXX should handle this material another way */ 651 ulr = &VTOI(dvp)->i_crap; 652 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 653 654 KASSERT(ap->a_vap->va_type == VDIR); 655 656 /* 657 * Acquire the inode, but don't sync/direnter it just yet 658 */ 659 error = ext2fs_makeinode(ap->a_vap, ap->a_dvp, &tvp, ap->a_cnp, 0); 660 if (error) 661 goto out; 662 663 /* the link count is going to be 2 when all is done */ 664 ip = VTOI(tvp); 665 ip->i_e2fs_nlink = 2; 666 667 /* 668 * Bump link count in parent directory 669 * to reflect work done below. Should 670 * be done before reference is created 671 * so reparation is possible if we crash. 672 */ 673 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 674 dp->i_e2fs_nlink++; 675 676 /* 677 * If we hit the link limit, for directories just set the nlink 678 * to special value 1, which means the link count is bigger 679 * than EXT2FS_LINK_MAX. 680 */ 681 if ((nlink_t)dp->i_e2fs_nlink >= EXT2FS_LINK_MAX) { 682 dp->i_e2fs_nlink = EXT2FS_LINK_INF; 683 684 /* set the feature flag DIR_NLINK if not set already */ 685 if (!EXT2F_HAS_ROCOMPAT_FEATURE(dp->i_e2fs, EXT2F_ROCOMPAT_DIR_NLINK)) { 686 dp->i_e2fs->e2fs.e2fs_features_rocompat |= EXT2F_ROCOMPAT_DIR_NLINK; 687 dp->i_e2fs->e2fs_fmod = 1; 688 } 689 } 690 691 dp->i_flag |= IN_CHANGE; 692 if ((error = ext2fs_update(dvp, NULL, NULL, UPDATE_DIROP)) != 0) 693 goto bad; 694 695 /* Initialize directory with "." and ".." from static template. */ 696 memset(&dirtemplate, 0, sizeof(dirtemplate)); 697 dirtemplate.dot_ino = h2fs32(ip->i_number); 698 dirtemplate.dot_reclen = h2fs16(12); 699 dirtemplate.dot_namlen = 1; 700 if (EXT2F_HAS_INCOMPAT_FEATURE(dp->i_e2fs, EXT2F_INCOMPAT_FTYPE)) { 701 dirtemplate.dot_type = EXT2_FT_DIR; 702 } 703 dirtemplate.dot_name[0] = '.'; 704 dirtemplate.dotdot_ino = h2fs32(dp->i_number); 705 dirtemplate.dotdot_reclen = h2fs16(VTOI(dvp)->i_e2fs->e2fs_bsize - 12); 706 dirtemplate.dotdot_namlen = 2; 707 if (EXT2F_HAS_INCOMPAT_FEATURE(dp->i_e2fs, EXT2F_INCOMPAT_FTYPE)) { 708 dirtemplate.dotdot_type = EXT2_FT_DIR; 709 } 710 dirtemplate.dotdot_name[0] = dirtemplate.dotdot_name[1] = '.'; 711 error = ufs_bufio(UIO_WRITE, tvp, (void *)&dirtemplate, 712 sizeof (dirtemplate), (off_t)0, IO_NODELOCKED|IO_SYNC, 713 cnp->cn_cred, (size_t *)0, NULL); 714 if (error) { 715 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 716 dp->i_e2fs_nlink--; 717 dp->i_flag |= IN_CHANGE; 718 goto bad; 719 } 720 if (VTOI(dvp)->i_e2fs->e2fs_bsize > dvp->v_mount->mnt_stat.f_bsize) 721 panic("ext2fs_mkdir: blksize"); /* XXX should grow with balloc() */ 722 else { 723 error = ext2fs_setsize(ip, VTOI(dvp)->i_e2fs->e2fs_bsize); 724 if (error) { 725 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 726 dp->i_e2fs_nlink--; 727 dp->i_flag |= IN_CHANGE; 728 goto bad; 729 } 730 ip->i_flag |= IN_CHANGE; 731 uvm_vnp_setsize(tvp, ext2fs_size(ip)); 732 } 733 734 /* Directory set up, now install its entry in the parent directory. */ 735 error = ext2fs_direnter(ip, dvp, ulr, cnp); 736 if (error != 0) { 737 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 738 dp->i_e2fs_nlink--; 739 dp->i_flag |= IN_CHANGE; 740 } 741 bad: 742 /* 743 * No need to do an explicit ext2fs_truncate here, vrele will do this 744 * for us because we set the link count to 0. 745 */ 746 if (error) { 747 ip->i_e2fs_nlink = 0; 748 ip->i_flag |= IN_CHANGE; 749 vput(tvp); 750 } else { 751 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK); 752 VOP_UNLOCK(tvp); 753 *ap->a_vpp = tvp; 754 } 755 out: 756 return error; 757 } 758 759 /* 760 * Rmdir system call. 761 */ 762 int 763 ext2fs_rmdir(void *v) 764 { 765 struct vop_rmdir_v2_args /* { 766 struct vnode *a_dvp; 767 struct vnode *a_vp; 768 struct componentname *a_cnp; 769 } */ *ap = v; 770 struct vnode *vp = ap->a_vp; 771 struct vnode *dvp = ap->a_dvp; 772 struct componentname *cnp = ap->a_cnp; 773 struct inode *ip, *dp; 774 int error; 775 struct ufs_lookup_results *ulr; 776 777 ip = VTOI(vp); 778 dp = VTOI(dvp); 779 780 /* XXX should handle this material another way */ 781 ulr = &dp->i_crap; 782 UFS_CHECK_CRAPCOUNTER(dp); 783 784 /* 785 * No rmdir "." please. 786 */ 787 if (dp == ip) { 788 vrele(vp); 789 return EINVAL; 790 } 791 /* 792 * Verify the directory is empty (and valid). 793 * (Rmdir ".." won't be valid since 794 * ".." will contain a reference to 795 * the current directory and thus be 796 * non-empty.) 797 */ 798 error = 0; 799 if ((ip->i_e2fs_nlink != 2 && ip->i_e2fs_nlink != EXT2FS_LINK_INF) || 800 !ext2fs_dirempty(ip, dp->i_number, cnp->cn_cred)) { 801 error = ENOTEMPTY; 802 goto out; 803 } 804 if ((dp->i_e2fs_flags & EXT2_APPEND) || 805 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND))) { 806 error = EPERM; 807 goto out; 808 } 809 /* 810 * Delete reference to directory before purging 811 * inode. If we crash in between, the directory 812 * will be reattached to lost+found, 813 */ 814 error = ext2fs_dirremove(dvp, ulr, cnp); 815 if (error != 0) 816 goto out; 817 if (dp->i_e2fs_nlink != EXT2FS_LINK_INF) 818 dp->i_e2fs_nlink--; 819 dp->i_flag |= IN_CHANGE; 820 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK); 821 cache_purge(dvp); 822 /* 823 * Truncate inode. The only stuff left 824 * in the directory is "." and "..". The 825 * "." reference is inconsequential since 826 * we're quashing it. The ".." reference 827 * has already been adjusted above. We've 828 * removed the "." reference and the reference 829 * in the parent directory, but there may be 830 * other hard links so decrement by 2 and 831 * worry about them later. 832 */ 833 ip->i_e2fs_nlink -= 2; 834 error = ext2fs_truncate(vp, (off_t)0, IO_SYNC, cnp->cn_cred); 835 cache_purge(ITOV(ip)); 836 out: 837 VN_KNOTE(vp, NOTE_DELETE); 838 vput(vp); 839 return error; 840 } 841 842 /* 843 * symlink -- make a symbolic link 844 */ 845 int 846 ext2fs_symlink(void *v) 847 { 848 struct vop_symlink_v3_args /* { 849 struct vnode *a_dvp; 850 struct vnode **a_vpp; 851 struct componentname *a_cnp; 852 struct vattr *a_vap; 853 char *a_target; 854 } */ *ap = v; 855 struct vnode *vp, **vpp; 856 struct inode *ip; 857 int len, error; 858 859 vpp = ap->a_vpp; 860 KASSERT(ap->a_vap->va_type == VLNK); 861 error = ext2fs_makeinode(ap->a_vap, ap->a_dvp, vpp, ap->a_cnp, 1); 862 if (error) 863 return error; 864 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 865 vp = *vpp; 866 len = strlen(ap->a_target); 867 ip = VTOI(vp); 868 if (len < ip->i_ump->um_maxsymlinklen) { 869 memcpy(ip->i_din.e2fs_din->e2di_shortlink, ap->a_target, len); 870 error = ext2fs_setsize(ip, len); 871 if (error) 872 goto bad; 873 ip->i_flag |= IN_CHANGE | IN_UPDATE; 874 if (vp->v_mount->mnt_flag & MNT_RELATIME) 875 ip->i_flag |= IN_ACCESS; 876 uvm_vnp_setsize(vp, len); 877 } else 878 error = ufs_bufio(UIO_WRITE, vp, ap->a_target, len, (off_t)0, 879 IO_NODELOCKED, ap->a_cnp->cn_cred, (size_t *)0, NULL); 880 bad: 881 VOP_UNLOCK(vp); 882 if (error) 883 vrele(vp); 884 return error; 885 } 886 887 /* 888 * Return target name of a symbolic link 889 */ 890 int 891 ext2fs_readlink(void *v) 892 { 893 struct vop_readlink_args /* { 894 struct vnode *a_vp; 895 struct uio *a_uio; 896 kauth_cred_t a_cred; 897 } */ *ap = v; 898 struct vnode *vp = ap->a_vp; 899 struct inode *ip = VTOI(vp); 900 struct ufsmount *ump = ip->i_ump; 901 int isize; 902 903 isize = ext2fs_size(ip); 904 if (isize < ump->um_maxsymlinklen || 905 (ump->um_maxsymlinklen == 0 && ext2fs_nblock(ip) == 0)) { 906 uiomove(ip->i_din.e2fs_din->e2di_shortlink, isize, ap->a_uio); 907 return 0; 908 } 909 return UFS_BUFRD(vp, ap->a_uio, 0, ap->a_cred); 910 } 911 912 /* 913 * Advisory record locking support 914 */ 915 int 916 ext2fs_advlock(void *v) 917 { 918 struct vop_advlock_args /* { 919 struct vnode *a_vp; 920 void * a_id; 921 int a_op; 922 struct flock *a_fl; 923 int a_flags; 924 } */ *ap = v; 925 struct inode *ip = VTOI(ap->a_vp); 926 927 return lf_advlock(ap, &ip->i_lockf, ext2fs_size(ip)); 928 } 929 930 int 931 ext2fs_fsync(void *v) 932 { 933 struct vop_fsync_args /* { 934 struct vnode *a_vp; 935 kauth_cred_t a_cred; 936 int a_flags; 937 off_t offlo; 938 off_t offhi; 939 struct proc *a_p; 940 } */ *ap = v; 941 struct vnode *vp = ap->a_vp; 942 int wait; 943 int error; 944 945 wait = (ap->a_flags & FSYNC_WAIT) != 0; 946 947 if (vp->v_type == VBLK) 948 error = spec_fsync(v); 949 else 950 error = vflushbuf(vp, ap->a_flags); 951 if (error == 0 && (ap->a_flags & FSYNC_DATAONLY) == 0) 952 error = ext2fs_update(vp, NULL, NULL, wait ? UPDATE_WAIT : 0); 953 954 if (error == 0 && ap->a_flags & FSYNC_CACHE) { 955 int l = 0; 956 error = VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &l, FWRITE, 957 curlwp->l_cred); 958 } 959 960 return error; 961 } 962 963 /* 964 * Initialize the vnode associated with a new inode, handle aliased 965 * vnodes. 966 */ 967 int 968 ext2fs_vinit(struct mount *mntp, int (**specops)(void *), 969 int (**fifoops)(void *), struct vnode **vpp) 970 { 971 struct timeval tv; 972 struct inode *ip; 973 struct vnode *vp; 974 975 vp = *vpp; 976 ip = VTOI(vp); 977 switch(vp->v_type = IFTOVT(ip->i_e2fs_mode)) { 978 case VCHR: 979 case VBLK: 980 vp->v_op = specops; 981 spec_node_init(vp, fs2h32(ip->i_din.e2fs_din->e2di_rdev)); 982 break; 983 case VFIFO: 984 vp->v_op = fifoops; 985 break; 986 case VNON: 987 case VBAD: 988 case VSOCK: 989 case VLNK: 990 case VDIR: 991 case VREG: 992 break; 993 } 994 if (ip->i_number == UFS_ROOTINO) 995 vp->v_vflag |= VV_ROOT; 996 /* 997 * Initialize modrev times 998 */ 999 getmicrouptime(&tv); 1000 SETHIGH(ip->i_modrev, tv.tv_sec); 1001 SETLOW(ip->i_modrev, tv.tv_usec * 4294U); 1002 *vpp = vp; 1003 return 0; 1004 } 1005 1006 /* 1007 * Allocate a new inode. 1008 */ 1009 static int 1010 ext2fs_makeinode(struct vattr *vap, struct vnode *dvp, struct vnode **vpp, 1011 struct componentname *cnp, int do_direnter) 1012 { 1013 struct inode *ip, *pdir; 1014 struct vnode *tvp; 1015 int error; 1016 struct ufs_lookup_results *ulr; 1017 1018 pdir = VTOI(dvp); 1019 1020 /* XXX should handle this material another way */ 1021 ulr = &pdir->i_crap; 1022 UFS_CHECK_CRAPCOUNTER(pdir); 1023 1024 *vpp = NULL; 1025 1026 error = vcache_new(dvp->v_mount, dvp, vap, cnp->cn_cred, NULL, &tvp); 1027 if (error) 1028 return error; 1029 error = vn_lock(tvp, LK_EXCLUSIVE); 1030 if (error) { 1031 vrele(tvp); 1032 return error; 1033 } 1034 ip = VTOI(tvp); 1035 if (do_direnter) { 1036 /* 1037 * Make sure inode goes to disk before directory entry. 1038 */ 1039 if ((error = ext2fs_update(tvp, NULL, NULL, UPDATE_WAIT)) != 0) 1040 goto bad; 1041 error = ext2fs_direnter(ip, dvp, ulr, cnp); 1042 if (error != 0) 1043 goto bad; 1044 } 1045 1046 *vpp = tvp; 1047 cache_enter(dvp, *vpp, cnp->cn_nameptr, cnp->cn_namelen, cnp->cn_flags); 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_accessx_desc, genfs_accessx }, /* accessx */ 1104 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1105 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1106 { &vop_read_desc, ext2fs_read }, /* read */ 1107 { &vop_write_desc, ext2fs_write }, /* write */ 1108 { &vop_fallocate_desc, genfs_eopnotsupp }, /* fallocate */ 1109 { &vop_fdiscard_desc, genfs_eopnotsupp }, /* fdiscard */ 1110 { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ 1111 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1112 { &vop_poll_desc, ufs_poll }, /* poll */ 1113 { &vop_kqfilter_desc, genfs_kqfilter }, /* kqfilter */ 1114 { &vop_revoke_desc, ufs_revoke }, /* revoke */ 1115 { &vop_mmap_desc, ufs_mmap }, /* mmap */ 1116 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1117 { &vop_seek_desc, ufs_seek }, /* seek */ 1118 { &vop_remove_desc, ext2fs_remove }, /* remove */ 1119 { &vop_link_desc, ext2fs_link }, /* link */ 1120 { &vop_rename_desc, ext2fs_rename }, /* rename */ 1121 { &vop_mkdir_desc, ext2fs_mkdir }, /* mkdir */ 1122 { &vop_rmdir_desc, ext2fs_rmdir }, /* rmdir */ 1123 { &vop_symlink_desc, ext2fs_symlink }, /* symlink */ 1124 { &vop_readdir_desc, ext2fs_readdir }, /* readdir */ 1125 { &vop_readlink_desc, ext2fs_readlink }, /* readlink */ 1126 { &vop_abortop_desc, ufs_abortop }, /* abortop */ 1127 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1128 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1129 { &vop_lock_desc, ufs_lock }, /* lock */ 1130 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1131 { &vop_bmap_desc, ext2fs_bmap }, /* bmap */ 1132 { &vop_strategy_desc, ufs_strategy }, /* strategy */ 1133 { &vop_print_desc, ufs_print }, /* print */ 1134 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1135 { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ 1136 { &vop_advlock_desc, ext2fs_advlock }, /* advlock */ 1137 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1138 { &vop_getpages_desc, genfs_getpages }, /* getpages */ 1139 { &vop_putpages_desc, genfs_putpages }, /* putpages */ 1140 { &vop_getextattr_desc, ext2fs_getextattr }, /* getextattr */ 1141 { &vop_setextattr_desc, ext2fs_setextattr }, /* setextattr */ 1142 { &vop_listextattr_desc, ext2fs_listextattr }, /* listextattr */ 1143 { &vop_deleteextattr_desc, ext2fs_deleteextattr },/* deleteextattr */ 1144 { NULL, NULL } 1145 }; 1146 const struct vnodeopv_desc ext2fs_vnodeop_opv_desc = 1147 { &ext2fs_vnodeop_p, ext2fs_vnodeop_entries }; 1148 1149 int (**ext2fs_specop_p)(void *); 1150 const struct vnodeopv_entry_desc ext2fs_specop_entries[] = { 1151 { &vop_default_desc, vn_default_error }, 1152 { &vop_lookup_desc, spec_lookup }, /* lookup */ 1153 { &vop_create_desc, spec_create }, /* create */ 1154 { &vop_mknod_desc, spec_mknod }, /* mknod */ 1155 { &vop_open_desc, spec_open }, /* open */ 1156 { &vop_close_desc, ufsspec_close }, /* close */ 1157 { &vop_access_desc, ext2fs_access }, /* access */ 1158 { &vop_accessx_desc, genfs_accessx }, /* accessx */ 1159 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1160 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1161 { &vop_read_desc, ufsspec_read }, /* read */ 1162 { &vop_write_desc, ufsspec_write }, /* write */ 1163 { &vop_fallocate_desc, spec_fallocate }, /* fallocate */ 1164 { &vop_fdiscard_desc, spec_fdiscard }, /* fdiscard */ 1165 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ 1166 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1167 { &vop_poll_desc, spec_poll }, /* poll */ 1168 { &vop_kqfilter_desc, spec_kqfilter }, /* kqfilter */ 1169 { &vop_revoke_desc, spec_revoke }, /* revoke */ 1170 { &vop_mmap_desc, spec_mmap }, /* mmap */ 1171 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1172 { &vop_seek_desc, spec_seek }, /* seek */ 1173 { &vop_remove_desc, spec_remove }, /* remove */ 1174 { &vop_link_desc, spec_link }, /* link */ 1175 { &vop_rename_desc, spec_rename }, /* rename */ 1176 { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ 1177 { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ 1178 { &vop_symlink_desc, spec_symlink }, /* symlink */ 1179 { &vop_readdir_desc, spec_readdir }, /* readdir */ 1180 { &vop_readlink_desc, spec_readlink }, /* readlink */ 1181 { &vop_abortop_desc, spec_abortop }, /* abortop */ 1182 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1183 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1184 { &vop_lock_desc, ufs_lock }, /* lock */ 1185 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1186 { &vop_bmap_desc, spec_bmap }, /* bmap */ 1187 { &vop_strategy_desc, spec_strategy }, /* strategy */ 1188 { &vop_print_desc, ufs_print }, /* print */ 1189 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1190 { &vop_pathconf_desc, spec_pathconf }, /* pathconf */ 1191 { &vop_advlock_desc, spec_advlock }, /* advlock */ 1192 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1193 { &vop_getpages_desc, spec_getpages }, /* getpages */ 1194 { &vop_putpages_desc, spec_putpages }, /* putpages */ 1195 { &vop_getextattr_desc, ext2fs_getextattr }, /* getextattr */ 1196 { &vop_setextattr_desc, ext2fs_setextattr }, /* setextattr */ 1197 { &vop_listextattr_desc, ext2fs_listextattr }, /* listextattr */ 1198 { &vop_deleteextattr_desc, ext2fs_deleteextattr },/* deleteextattr */ 1199 { NULL, NULL } 1200 }; 1201 const struct vnodeopv_desc ext2fs_specop_opv_desc = 1202 { &ext2fs_specop_p, ext2fs_specop_entries }; 1203 1204 int (**ext2fs_fifoop_p)(void *); 1205 const struct vnodeopv_entry_desc ext2fs_fifoop_entries[] = { 1206 { &vop_default_desc, vn_default_error }, 1207 { &vop_lookup_desc, vn_fifo_bypass }, /* lookup */ 1208 { &vop_create_desc, vn_fifo_bypass }, /* create */ 1209 { &vop_mknod_desc, vn_fifo_bypass }, /* mknod */ 1210 { &vop_open_desc, vn_fifo_bypass }, /* open */ 1211 { &vop_close_desc, ufsfifo_close }, /* close */ 1212 { &vop_access_desc, ext2fs_access }, /* access */ 1213 { &vop_accessx_desc, genfs_accessx }, /* accessx */ 1214 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1215 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1216 { &vop_read_desc, ufsfifo_read }, /* read */ 1217 { &vop_write_desc, ufsfifo_write }, /* write */ 1218 { &vop_fallocate_desc, vn_fifo_bypass }, /* fallocate */ 1219 { &vop_fdiscard_desc, vn_fifo_bypass }, /* fdiscard */ 1220 { &vop_ioctl_desc, vn_fifo_bypass }, /* ioctl */ 1221 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1222 { &vop_poll_desc, vn_fifo_bypass }, /* poll */ 1223 { &vop_kqfilter_desc, vn_fifo_bypass }, /* kqfilter */ 1224 { &vop_revoke_desc, vn_fifo_bypass }, /* revoke */ 1225 { &vop_mmap_desc, vn_fifo_bypass }, /* mmap */ 1226 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1227 { &vop_seek_desc, vn_fifo_bypass }, /* seek */ 1228 { &vop_remove_desc, vn_fifo_bypass }, /* remove */ 1229 { &vop_link_desc, vn_fifo_bypass }, /* link */ 1230 { &vop_rename_desc, vn_fifo_bypass }, /* rename */ 1231 { &vop_mkdir_desc, vn_fifo_bypass }, /* mkdir */ 1232 { &vop_rmdir_desc, vn_fifo_bypass }, /* rmdir */ 1233 { &vop_symlink_desc, vn_fifo_bypass }, /* symlink */ 1234 { &vop_readdir_desc, vn_fifo_bypass }, /* readdir */ 1235 { &vop_readlink_desc, vn_fifo_bypass }, /* readlink */ 1236 { &vop_abortop_desc, vn_fifo_bypass }, /* abortop */ 1237 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1238 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1239 { &vop_lock_desc, ufs_lock }, /* lock */ 1240 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1241 { &vop_bmap_desc, vn_fifo_bypass }, /* bmap */ 1242 { &vop_strategy_desc, vn_fifo_bypass }, /* strategy */ 1243 { &vop_print_desc, ufs_print }, /* print */ 1244 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1245 { &vop_pathconf_desc, vn_fifo_bypass }, /* pathconf */ 1246 { &vop_advlock_desc, vn_fifo_bypass }, /* advlock */ 1247 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1248 { &vop_putpages_desc, vn_fifo_bypass }, /* putpages */ 1249 { &vop_getextattr_desc, ext2fs_getextattr }, /* getextattr */ 1250 { &vop_setextattr_desc, ext2fs_setextattr }, /* setextattr */ 1251 { &vop_listextattr_desc, ext2fs_listextattr }, /* listextattr */ 1252 { &vop_deleteextattr_desc, ext2fs_deleteextattr },/* deleteextattr */ 1253 { NULL, NULL } 1254 }; 1255 const struct vnodeopv_desc ext2fs_fifoop_opv_desc = 1256 { &ext2fs_fifoop_p, ext2fs_fifoop_entries }; 1257
Indexes created Fri Sep 26 08:10:20 GMT 2025